diff -Nrcpad gcc-6.4.0/ChangeLog gcc-6.5.0/ChangeLog
*** gcc-6.4.0/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/INSTALL/binaries.html gcc-6.5.0/INSTALL/binaries.html
*** gcc-6.4.0/INSTALL/binaries.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/binaries.html	Fri Oct 26 09:56:39 2018
***************
*** 1,98 ****
! <html lang="en">
! <head>
! <title>Installing GCC: Binaries</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC: Binaries">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
!   pre.smalldisplay { font-family:inherit; font-size:smaller }
!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
! <body>
! <h1 class="settitle">Installing GCC: Binaries</h1>
! <a name="index-Binaries-1"></a><a name="index-Installing-GCC_003a-Binaries-2"></a>
! We are often asked about pre-compiled versions of GCC.  While we cannot
! provide these for all platforms, below you'll find links to binaries for
  various platforms where creating them by yourself is not easy due to various
  reasons.
! 
!    <p>Please note that we did not create these binaries, nor do we
  support them.  If you have any problems installing them, please
  contact their makers.
  
!      <ul>
! <li>AIX:
!           <ul>
! <li><a href="http://www.bullfreeware.com">Bull's Open Source Software Archive for for AIX 5L and AIX 6</a>;
! 
!           <li><a href="http://www.perzl.org/aix/">AIX Open Source Packages (AIX5L AIX 6.1 AIX 7.1)</a>. 
! </ul>
  
!      <li>DOS&mdash;<a href="http://www.delorie.com/djgpp/">DJGPP</a>.
  
!      <li>HP-UX:
!           <ul>
! <li><a href="http://hpux.connect.org.uk/">HP-UX Porting Center</a>;
! </ul>
  
!      <li>Solaris 2 (SPARC, Intel):
!           <ul>
! <li><a href="https://www.opencsw.org/">OpenCSW</a>
  
!           <li><a href="http://jupiterrise.com/tgcware/">TGCware</a>
! </ul>
  
!      <li>Microsoft Windows:
!           <ul>
! <li>The <a href="http://sourceware.org/cygwin/">Cygwin</a> project;
! <li>The <a href="http://www.mingw.org/">MinGW</a> and
! <a href="http://mingw-w64.org/">mingw-w64</a> projects. 
! </ul>
  
!      <li><a href="http://www.openpkg.org/">OpenPKG</a> offers binaries for quite a
  number of platforms.
  
!      <li>The <a href="http://gcc.gnu.org/wiki/GFortranBinaries">GFortran Wiki</a> has
! links to GNU Fortran binaries for several platforms. 
! </ul>
  
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***Specific**************************************************************** -->
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 1,150 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
! <meta name="keywords" content="Installing GCC">
! <meta name="resource-type" content="document">
! <meta name="distribution" content="global">
! <meta name="Generator" content="makeinfo">
! <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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! blockquote.smallquotation {font-size: smaller}
! div.display {margin-left: 3.2em}
! div.example {margin-left: 3.2em}
! div.lisp {margin-left: 3.2em}
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! div.smallexample {margin-left: 3.2em}
! div.smalllisp {margin-left: 3.2em}
! kbd {font-style: oblique}
! pre.display {font-family: inherit}
! pre.format {font-family: inherit}
! pre.menu-comment {font-family: serif}
! pre.menu-preformatted {font-family: serif}
! pre.smalldisplay {font-family: inherit; font-size: smaller}
! pre.smallexample {font-size: smaller}
! pre.smallformat {font-family: inherit; font-size: smaller}
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! span.sansserif {font-family: sans-serif; font-weight: normal}
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! -->
! </style>
! 
! 
  </head>
! 
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Binaries"></a>
! <a name="index-Installing-GCC_003a-Binaries"></a>
! 
! <p>We are often asked about pre-compiled versions of GCC.  While we cannot
! provide these for all platforms, below you&rsquo;ll find links to binaries for
  various platforms where creating them by yourself is not easy due to various
  reasons.
! </p>
! <p>Please note that we did not create these binaries, nor do we
  support them.  If you have any problems installing them, please
  contact their makers.
+ </p>
+ <ul>
+ <li> AIX:
+ <ul>
+ <li> <a href="http://www.bullfreeware.com">Bull&rsquo;s Open Source Software Archive for
+ for AIX 5L and AIX 6</a>;
  
! </li><li> <a href="http://www.perzl.org/aix/">AIX Open Source Packages (AIX5L AIX 6.1
! AIX 7.1)</a>.
! </li></ul>
  
! </li><li> DOS&mdash;<a href="http://www.delorie.com/djgpp/">DJGPP</a>.
  
! </li><li> HP-UX:
! <ul>
! <li> <a href="http://hpux.connect.org.uk/">HP-UX Porting Center</a>;
! </li></ul>
  
! </li><li> Solaris 2 (SPARC, Intel):
! <ul>
! <li> <a href="https://www.opencsw.org/">OpenCSW</a>
  
! </li><li> <a href="http://jupiterrise.com/tgcware/">TGCware</a>
! </li></ul>
  
! </li><li> Microsoft Windows:
! <ul>
! <li> The <a href="http://sourceware.org/cygwin/">Cygwin</a> project;
! </li><li> The <a href="http://www.mingw.org/">MinGW</a> and
! <a href="http://mingw-w64.org/">mingw-w64</a> projects.
! </li></ul>
  
! </li><li> <a href="http://www.openpkg.org/">OpenPKG</a> offers binaries for quite a
  number of platforms.
  
! </li><li> The <a href="http://gcc.gnu.org/wiki/GFortranBinaries">GFortran Wiki</a> has
! links to GNU Fortran binaries for several platforms.
! </li></ul>
  
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
  
  
+ 
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/build.html gcc-6.5.0/INSTALL/build.html
*** gcc-6.4.0/INSTALL/build.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/build.html	Fri Oct 26 09:56:38 2018
***************
*** 1,385 ****
! <html lang="en">
! <head>
! <title>Installing GCC: Building</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC: Building">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
!   pre.smalldisplay { font-family:inherit; font-size:smaller }
!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
- <body>
- <h1 class="settitle">Installing GCC: Building</h1>
- <a name="index-Installing-GCC_003a-Building-1"></a>
- Now that GCC is configured, you are ready to build the compiler and
- runtime libraries.
  
!    <p>Some commands executed when making the compiler may fail (return a
! nonzero status) and be ignored by <samp><span class="command">make</span></samp>.  These failures, which
  are often due to files that were not found, are expected, and can safely
  be ignored.
! 
!    <p>It is normal to have compiler warnings when compiling certain files. 
  Unless you are a GCC developer, you can generally ignore these warnings
  unless they cause compilation to fail.  Developers should attempt to fix
  any warnings encountered, however they can temporarily continue past
  warnings-as-errors by specifying the configure flag
! <samp><span class="option">--disable-werror</span></samp>.
! 
!    <p>On certain old systems, defining certain environment variables such as
! <samp><span class="env">CC</span></samp> can interfere with the functioning of <samp><span class="command">make</span></samp>.
! 
!    <p>If you encounter seemingly strange errors when trying to build the
  compiler in a directory other than the source directory, it could be
  because you have previously configured the compiler in the source
  directory.  Make sure you have done all the necessary preparations.
! 
!    <p>If you build GCC on a BSD system using a directory stored in an old System
! V file system, problems may occur in running <samp><span class="command">fixincludes</span></samp> if the
! System V file system doesn't support symbolic links.  These problems
  result in a failure to fix the declaration of <code>size_t</code> in
! <samp><span class="file">sys/types.h</span></samp>.  If you find that <code>size_t</code> is a signed type and
  that type mismatches occur, this could be the cause.
! 
!    <p>The solution is not to use such a directory for building GCC.
! 
!    <p>Similarly, when building from SVN or snapshots, or if you modify
! <samp><span class="file">*.l</span></samp> files, you need the Flex lexical analyzer generator
! installed.  If you do not modify <samp><span class="file">*.l</span></samp> files, releases contain
  the Flex-generated files and you do not need Flex installed to build
  them.  There is still one Flex-based lexical analyzer (part of the
  build machinery, not of GCC itself) that is used even if you only
  build the C front end.
! 
!    <p>When building from SVN or snapshots, or if you modify Texinfo
  documentation, you need version 4.7 or later of Texinfo installed if you
  want Info documentation to be regenerated.  Releases contain Info
  documentation pre-built for the unmodified documentation in the release.
! 
! <h3 class="section"><a name="TOC0"></a>Building a native compiler</h3>
  
  <p>For a native build, the default configuration is to perform
! a 3-stage bootstrap of the compiler when &lsquo;<samp><span class="samp">make</span></samp>&rsquo; is invoked. 
  This will build the entire GCC system and ensure that it compiles
! itself correctly.  It can be disabled with the <samp><span class="option">--disable-bootstrap</span></samp>
! parameter to &lsquo;<samp><span class="samp">configure</span></samp>&rsquo;, but bootstrapping is suggested because
  the compiler will be tested more completely and could also have
  better performance.
  
!    <p>The bootstrapping process will complete the following steps:
! 
!      <ul>
! <li>Build tools necessary to build the compiler.
! 
!      <li>Perform a 3-stage bootstrap of the compiler.  This includes building
  three times the target tools for use by the compiler such as binutils
  (bfd, binutils, gas, gprof, ld, and opcodes) if they have been
  individually linked or moved into the top level GCC source tree before
  configuring.
  
!      <li>Perform a comparison test of the stage2 and stage3 compilers.
  
!      <li>Build runtime libraries using the stage3 compiler from the previous step.
  
!    </ul>
  
!    <p>If you are short on disk space you might consider &lsquo;<samp><span class="samp">make
! bootstrap-lean</span></samp>&rsquo; instead.  The sequence of compilation is the
  same described above, but object files from the stage1 and
  stage2 of the 3-stage bootstrap of the compiler are deleted as
  soon as they are no longer needed.
! 
!    <p>If you wish to use non-default GCC flags when compiling the stage2
  and stage3 compilers, set <code>BOOT_CFLAGS</code> on the command line when
! doing &lsquo;<samp><span class="samp">make</span></samp>&rsquo;.  For example, if you want to save additional space
  during the bootstrap and in the final installation as well, you can
  build the compiler binaries without debugging information as in the
  following example.  This will save roughly 40% of disk space both for
  the bootstrap and the final installation.  (Libraries will still contain
  debugging information.)
  
! <pre class="smallexample">     make BOOT_CFLAGS='-O' bootstrap
! </pre>
!    <p>You can place non-default optimization flags into <code>BOOT_CFLAGS</code>; they
! are less well tested here than the default of &lsquo;<samp><span class="samp">-g -O2</span></samp>&rsquo;, but should
  still work.  In a few cases, you may find that you need to specify special
! flags such as <samp><span class="option">-msoft-float</span></samp> here to complete the bootstrap; or,
  if the native compiler miscompiles the stage1 compiler, you may need
  to work around this, by choosing <code>BOOT_CFLAGS</code> to avoid the parts
! of the stage1 compiler that were miscompiled, or by using &lsquo;<samp><span class="samp">make
! bootstrap4</span></samp>&rsquo; to increase the number of stages of bootstrap.
! 
!    <p><code>BOOT_CFLAGS</code> does not apply to bootstrapped target libraries. 
  Since these are always compiled with the compiler currently being
  bootstrapped, you can use <code>CFLAGS_FOR_TARGET</code> to modify their
! compilation flags, as for non-bootstrapped target libraries. 
  Again, if the native compiler miscompiles the stage1 compiler, you may
  need to work around this by avoiding non-working parts of the stage1
  compiler.  Use <code>STAGE1_TFLAGS</code> to this end.
! 
!    <p>If you used the flag <samp><span class="option">--enable-languages=...</span></samp> to restrict
! the compilers to be built, only those you've actually enabled will be
  built.  This will of course only build those runtime libraries, for
  which the particular compiler has been built.  Please note,
! that re-defining <samp><span class="env">LANGUAGES</span></samp> when calling &lsquo;<samp><span class="samp">make</span></samp>&rsquo;
  <strong>does not</strong> work anymore!
! 
!    <p>If the comparison of stage2 and stage3 fails, this normally indicates
  that the stage2 compiler has compiled GCC incorrectly, and is therefore
  a potentially serious bug which you should investigate and report.  (On
  a few systems, meaningful comparison of object files is impossible; they
  always appear &ldquo;different&rdquo;.  If you encounter this problem, you will
! need to disable comparison in the <samp><span class="file">Makefile</span></samp>.)
! 
!    <p>If you do not want to bootstrap your compiler, you can configure with
! <samp><span class="option">--disable-bootstrap</span></samp>.  In particular cases, you may want to
  bootstrap your compiler even if the target system is not the same as
  the one you are building on: for example, you could build a
  <code>powerpc-unknown-linux-gnu</code> toolchain on a
  <code>powerpc64-unknown-linux-gnu</code> host.  In this case, pass
! <samp><span class="option">--enable-bootstrap</span></samp> to the configure script.
! 
!    <p><code>BUILD_CONFIG</code> can be used to bring in additional customization
! to the build.  It can be set to a whitespace-separated list of names. 
! For each such <code>NAME</code>, top-level <samp><span class="file">config/</span><code>NAME</code><span class="file">.mk</span></samp> will
! be included by the top-level <samp><span class="file">Makefile</span></samp>, bringing in any settings
  it contains.  The default <code>BUILD_CONFIG</code> can be set using the
! configure option <samp><span class="option">--with-build-config=</span><code>NAME</code><span class="option">...</span></samp>.  Some
  examples of supported build configurations are:
! 
!      <dl>
! <dt>&lsquo;<samp><span class="samp">bootstrap-O1</span></samp>&rsquo;<dd>Removes any <samp><span class="option">-O</span></samp>-started option from <code>BOOT_CFLAGS</code>, and adds
! <samp><span class="option">-O1</span></samp> to it.  &lsquo;<samp><span class="samp">BUILD_CONFIG=bootstrap-O1</span></samp>&rsquo; is equivalent to
! &lsquo;<samp><span class="samp">BOOT_CFLAGS='-g -O1'</span></samp>&rsquo;.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-O3</span></samp>&rsquo;<dd>Analogous to <code>bootstrap-O1</code>.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-lto</span></samp>&rsquo;<dd>Enables Link-Time Optimization for host tools during bootstrapping. 
! &lsquo;<samp><span class="samp">BUILD_CONFIG=bootstrap-lto</span></samp>&rsquo; is equivalent to adding
! <samp><span class="option">-flto</span></samp> to &lsquo;<samp><span class="samp">BOOT_CFLAGS</span></samp>&rsquo;.  This option assumes that the host
  supports the linker plugin (e.g. GNU ld version 2.21 or later or GNU gold
  version 2.21 or later).
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-lto-noplugin</span></samp>&rsquo;<dd>This option is similar to <code>bootstrap-lto</code>, but is intended for
! hosts that do not support the linker plugin.  Without the linker plugin
! static libraries are not compiled with link-time optimizations.  Since
! the GCC middle end and back end are in <samp><span class="file">libbackend.a</span></samp> this means
  that only the front end is actually LTO optimized.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-debug</span></samp>&rsquo;<dd>Verifies that the compiler generates the same executable code, whether
  or not it is asked to emit debug information.  To this end, this
  option builds stage2 host programs without debug information, and uses
! <samp><span class="file">contrib/compare-debug</span></samp> to compare them with the stripped stage3
  object files.  If <code>BOOT_CFLAGS</code> is overridden so as to not enable
! debug information, stage2 will have it, and stage3 won't.  This option
  is enabled by default when GCC bootstrapping is enabled, if
  <code>strip</code> can turn object files compiled with and without debug
  info into identical object files.  In addition to better test
  coverage, this option makes default bootstraps faster and leaner.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-debug-big</span></samp>&rsquo;<dd>Rather than comparing stripped object files, as in
  <code>bootstrap-debug</code>, this option saves internal compiler dumps
  during stage2 and stage3 and compares them as well, which helps catch
  additional potential problems, but at a great cost in terms of disk
! space.  It can be specified in addition to &lsquo;<samp><span class="samp">bootstrap-debug</span></samp>&rsquo;.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-debug-lean</span></samp>&rsquo;<dd>This option saves disk space compared with <code>bootstrap-debug-big</code>,
  but at the expense of some recompilation.  Instead of saving the dumps
  of stage2 and stage3 until the final compare, it uses
! <samp><span class="option">-fcompare-debug</span></samp> to generate, compare and remove the dumps
  during stage3, repeating the compilation that already took place in
  stage2, whose dumps were not saved.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-debug-lib</span></samp>&rsquo;<dd>This option tests executable code invariance over debug information
  generation on target libraries, just like <code>bootstrap-debug-lean</code>
  tests it on host programs.  It builds stage3 libraries with
! <samp><span class="option">-fcompare-debug</span></samp>, and it can be used along with any of the
  <code>bootstrap-debug</code> options above.
! 
!      <p>There aren't <code>-lean</code> or <code>-big</code> counterparts to this option
  because most libraries are only build in stage3, so bootstrap compares
  would not get significant coverage.  Moreover, the few libraries built
! in stage2 are used in stage3 host programs, so we wouldn't want to
  compile stage2 libraries with different options for comparison purposes.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-debug-ckovw</span></samp>&rsquo;<dd>Arranges for error messages to be issued if the compiler built on any
! stage is run without the option <samp><span class="option">-fcompare-debug</span></samp>.  This is
! useful to verify the full <samp><span class="option">-fcompare-debug</span></samp> testing coverage.  It
  must be used along with <code>bootstrap-debug-lean</code> and
  <code>bootstrap-debug-lib</code>.
! 
!      <br><dt>&lsquo;<samp><span class="samp">bootstrap-time</span></samp>&rsquo;<dd>Arranges for the run time of each program started by the GCC driver,
! built in any stage, to be logged to <samp><span class="file">time.log</span></samp>, in the top level of
  the build tree.
  
!    </dl>
! 
! <h3 class="section"><a name="TOC1"></a>Building a cross compiler</h3>
  
  <p>When building a cross compiler, it is not generally possible to do a
  3-stage bootstrap of the compiler.  This makes for an interesting problem
  as parts of GCC can only be built with GCC.
! 
!    <p>To build a cross compiler, we recommend first building and installing a
  native compiler.  You can then use the native GCC compiler to build the
  cross compiler.  The installed native compiler needs to be GCC version
  2.95 or later.
! 
!    <p>If the cross compiler is to be built with support for the Java
  programming language and the ability to compile .java source files is
  desired, the installed native compiler used to build the cross
  compiler needs to be the same GCC version as the cross compiler.  In
  addition the cross compiler needs to be configured with
! <samp><span class="option">--with-ecj-jar=...</span></samp>.
! 
!    <p>Assuming you have already installed a native copy of GCC and configured
! your cross compiler, issue the command <samp><span class="command">make</span></samp>, which performs the
  following steps:
  
!      <ul>
! <li>Build host tools necessary to build the compiler.
! 
!      <li>Build target tools for use by the compiler such as binutils (bfd,
  binutils, gas, gprof, ld, and opcodes)
  if they have been individually linked or moved into the top level GCC source
  tree before configuring.
  
!      <li>Build the compiler (single stage only).
! 
!      <li>Build runtime libraries using the compiler from the previous step. 
! </ul>
  
!    <p>Note that if an error occurs in any step the make process will exit.
  
!    <p>If you are not building GNU binutils in the same source tree as GCC,
  you will need a cross-assembler and cross-linker installed before
  configuring GCC.  Put them in the directory
! <samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/bin</span></samp>.  Here is a table of the tools
  you should put in this directory:
! 
!      <dl>
! <dt><samp><span class="file">as</span></samp><dd>This should be the cross-assembler.
! 
!      <br><dt><samp><span class="file">ld</span></samp><dd>This should be the cross-linker.
! 
!      <br><dt><samp><span class="file">ar</span></samp><dd>This should be the cross-archiver: a program which can manipulate
! archive files (linker libraries) in the target machine's format.
! 
!      <br><dt><samp><span class="file">ranlib</span></samp><dd>This should be a program to construct a symbol table in an archive file. 
  </dl>
  
!    <p>The installation of GCC will find these programs in that directory,
  and copy or link them to the proper place to for the cross-compiler to
  find them when run later.
! 
!    <p>The easiest way to provide these files is to build the Binutils package. 
! Configure it with the same <samp><span class="option">--host</span></samp> and <samp><span class="option">--target</span></samp>
  options that you use for configuring GCC, then build and install
  them.  They install their executables automatically into the proper
  directory.  Alas, they do not support all the targets that GCC
  supports.
! 
!    <p>If you are not building a C library in the same source tree as GCC,
  you should also provide the target libraries and headers before
  configuring GCC, specifying the directories with
! <samp><span class="option">--with-sysroot</span></samp> or <samp><span class="option">--with-headers</span></samp> and
! <samp><span class="option">--with-libs</span></samp>.  Many targets also require &ldquo;start files&rdquo; such
! as <samp><span class="file">crt0.o</span></samp> and
! <samp><span class="file">crtn.o</span></samp> which are linked into each executable.  There may be several
! alternatives for <samp><span class="file">crt0.o</span></samp>, for use with profiling or other
! compilation options.  Check your target's definition of
  <code>STARTFILE_SPEC</code> to find out what start files it uses.
! 
! <h3 class="section"><a name="TOC2"></a>Building in parallel</h3>
  
  <p>GNU Make 3.80 and above, which is necessary to build GCC, support
! building in parallel.  To activate this, you can use &lsquo;<samp><span class="samp">make -j 2</span></samp>&rsquo;
! instead of &lsquo;<samp><span class="samp">make</span></samp>&rsquo;.  You can also specify a bigger number, and
  in most cases using a value greater than the number of processors in
  your machine will result in fewer and shorter I/O latency hits, thus
  improving overall throughput; this is especially true for slow drives
  and network filesystems.
! 
! <h3 class="section"><a name="TOC3"></a>Building the Ada compiler</h3>
  
  <p>In order to build GNAT, the Ada compiler, you need a working GNAT
! compiler (GCC version 4.0 or later). 
! This includes GNAT tools such as <samp><span class="command">gnatmake</span></samp> and
! <samp><span class="command">gnatlink</span></samp>, since the Ada front end is written in Ada and
  uses some GNAT-specific extensions.
! 
!    <p>In order to build a cross compiler, it is suggested to install
  the new compiler as native first, and then use it to build the cross
  compiler.
! 
!    <p><samp><span class="command">configure</span></samp> does not test whether the GNAT installation works
  and has a sufficiently recent version; if too old a GNAT version is
! installed, the build will fail unless <samp><span class="option">--enable-languages</span></samp> is
  used to disable building the Ada front end.
! 
!    <p><samp><span class="env">ADA_INCLUDE_PATH</span></samp> and <samp><span class="env">ADA_OBJECT_PATH</span></samp> environment variables
  must not be set when building the Ada compiler, the Ada tools, or the
  Ada runtime libraries. You can check that your build environment is clean
! by verifying that &lsquo;<samp><span class="samp">gnatls -v</span></samp>&rsquo; lists only one explicit path in each
  section.
! 
! <h3 class="section"><a name="TOC4"></a>Building with profile feedback</h3>
  
  <p>It is possible to use profile feedback to optimize the compiler itself.  This
  should result in a faster compiler binary.  Experiments done on x86 using gcc
  3.3 showed approximately 7 percent speedup on compiling C programs.  To
  bootstrap the compiler with profile feedback, use <code>make profiledbootstrap</code>.
! 
!    <p>When &lsquo;<samp><span class="samp">make profiledbootstrap</span></samp>&rsquo; is run, it will first build a <code>stage1</code>
  compiler.  This compiler is used to build a <code>stageprofile</code> compiler
  instrumented to collect execution counts of instruction and branch
! probabilities.  Then runtime libraries are compiled with profile collected. 
  Finally a <code>stagefeedback</code> compiler is built using the information collected.
! 
!    <p>Unlike standard bootstrap, several additional restrictions apply.  The
! compiler used to build <code>stage1</code> needs to support a 64-bit integral type. 
  It is recommended to only use GCC for this.
! 
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
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! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Installing-GCC_003a-Building"></a>
! 
! <p>Now that GCC is configured, you are ready to build the compiler and
! runtime libraries.
! </p>
! <p>Some commands executed when making the compiler may fail (return a
! nonzero status) and be ignored by <code>make</code>.  These failures, which
  are often due to files that were not found, are expected, and can safely
  be ignored.
! </p>
! <p>It is normal to have compiler warnings when compiling certain files.
  Unless you are a GCC developer, you can generally ignore these warnings
  unless they cause compilation to fail.  Developers should attempt to fix
  any warnings encountered, however they can temporarily continue past
  warnings-as-errors by specifying the configure flag
! <samp>--disable-werror</samp>.
! </p>
! <p>On certain old systems, defining certain environment variables such as
! <code>CC</code> can interfere with the functioning of <code>make</code>.
! </p>
! <p>If you encounter seemingly strange errors when trying to build the
  compiler in a directory other than the source directory, it could be
  because you have previously configured the compiler in the source
  directory.  Make sure you have done all the necessary preparations.
! </p>
! <p>If you build GCC on a BSD system using a directory stored in an old System
! V file system, problems may occur in running <code>fixincludes</code> if the
! System V file system doesn&rsquo;t support symbolic links.  These problems
  result in a failure to fix the declaration of <code>size_t</code> in
! <samp>sys/types.h</samp>.  If you find that <code>size_t</code> is a signed type and
  that type mismatches occur, this could be the cause.
! </p>
! <p>The solution is not to use such a directory for building GCC.
! </p>
! <p>Similarly, when building from SVN or snapshots, or if you modify
! <samp>*.l</samp> files, you need the Flex lexical analyzer generator
! installed.  If you do not modify <samp>*.l</samp> files, releases contain
  the Flex-generated files and you do not need Flex installed to build
  them.  There is still one Flex-based lexical analyzer (part of the
  build machinery, not of GCC itself) that is used even if you only
  build the C front end.
! </p>
! <p>When building from SVN or snapshots, or if you modify Texinfo
  documentation, you need version 4.7 or later of Texinfo installed if you
  want Info documentation to be regenerated.  Releases contain Info
  documentation pre-built for the unmodified documentation in the release.
! </p>
! <a name="Building-a-native-compiler"></a>
! <h3 class="section">Building a native compiler</h3>
  
  <p>For a native build, the default configuration is to perform
! a 3-stage bootstrap of the compiler when &lsquo;<samp>make</samp>&rsquo; is invoked.
  This will build the entire GCC system and ensure that it compiles
! itself correctly.  It can be disabled with the <samp>--disable-bootstrap</samp>
! parameter to &lsquo;<samp>configure</samp>&rsquo;, but bootstrapping is suggested because
  the compiler will be tested more completely and could also have
  better performance.
+ </p>
+ <p>The bootstrapping process will complete the following steps:
+ </p>
+ <ul>
+ <li> Build tools necessary to build the compiler.
  
! </li><li> Perform a 3-stage bootstrap of the compiler.  This includes building
  three times the target tools for use by the compiler such as binutils
  (bfd, binutils, gas, gprof, ld, and opcodes) if they have been
  individually linked or moved into the top level GCC source tree before
  configuring.
  
! </li><li> Perform a comparison test of the stage2 and stage3 compilers.
  
! </li><li> Build runtime libraries using the stage3 compiler from the previous step.
  
! </li></ul>
  
! <p>If you are short on disk space you might consider &lsquo;<samp>make
! bootstrap-lean</samp>&rsquo; instead.  The sequence of compilation is the
  same described above, but object files from the stage1 and
  stage2 of the 3-stage bootstrap of the compiler are deleted as
  soon as they are no longer needed.
! </p>
! <p>If you wish to use non-default GCC flags when compiling the stage2
  and stage3 compilers, set <code>BOOT_CFLAGS</code> on the command line when
! doing &lsquo;<samp>make</samp>&rsquo;.  For example, if you want to save additional space
  during the bootstrap and in the final installation as well, you can
  build the compiler binaries without debugging information as in the
  following example.  This will save roughly 40% of disk space both for
  the bootstrap and the final installation.  (Libraries will still contain
  debugging information.)
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">make BOOT_CFLAGS='-O' bootstrap
+ </pre></div>
  
! <p>You can place non-default optimization flags into <code>BOOT_CFLAGS</code>; they
! are less well tested here than the default of &lsquo;<samp>-g -O2</samp>&rsquo;, but should
  still work.  In a few cases, you may find that you need to specify special
! flags such as <samp>-msoft-float</samp> here to complete the bootstrap; or,
  if the native compiler miscompiles the stage1 compiler, you may need
  to work around this, by choosing <code>BOOT_CFLAGS</code> to avoid the parts
! of the stage1 compiler that were miscompiled, or by using &lsquo;<samp>make
! bootstrap4</samp>&rsquo; to increase the number of stages of bootstrap.
! </p>
! <p><code>BOOT_CFLAGS</code> does not apply to bootstrapped target libraries.
  Since these are always compiled with the compiler currently being
  bootstrapped, you can use <code>CFLAGS_FOR_TARGET</code> to modify their
! compilation flags, as for non-bootstrapped target libraries.
  Again, if the native compiler miscompiles the stage1 compiler, you may
  need to work around this by avoiding non-working parts of the stage1
  compiler.  Use <code>STAGE1_TFLAGS</code> to this end.
! </p>
! <p>If you used the flag <samp>--enable-languages=&hellip;</samp> to restrict
! the compilers to be built, only those you&rsquo;ve actually enabled will be
  built.  This will of course only build those runtime libraries, for
  which the particular compiler has been built.  Please note,
! that re-defining <code>LANGUAGES</code> when calling &lsquo;<samp>make</samp>&rsquo;
  <strong>does not</strong> work anymore!
! </p>
! <p>If the comparison of stage2 and stage3 fails, this normally indicates
  that the stage2 compiler has compiled GCC incorrectly, and is therefore
  a potentially serious bug which you should investigate and report.  (On
  a few systems, meaningful comparison of object files is impossible; they
  always appear &ldquo;different&rdquo;.  If you encounter this problem, you will
! need to disable comparison in the <samp>Makefile</samp>.)
! </p>
! <p>If you do not want to bootstrap your compiler, you can configure with
! <samp>--disable-bootstrap</samp>.  In particular cases, you may want to
  bootstrap your compiler even if the target system is not the same as
  the one you are building on: for example, you could build a
  <code>powerpc-unknown-linux-gnu</code> toolchain on a
  <code>powerpc64-unknown-linux-gnu</code> host.  In this case, pass
! <samp>--enable-bootstrap</samp> to the configure script.
! </p>
! <p><code>BUILD_CONFIG</code> can be used to bring in additional customization
! to the build.  It can be set to a whitespace-separated list of names.
! For each such <code>NAME</code>, top-level <samp>config/<code>NAME</code>.mk</samp> will
! be included by the top-level <samp>Makefile</samp>, bringing in any settings
  it contains.  The default <code>BUILD_CONFIG</code> can be set using the
! configure option <samp>--with-build-config=<code>NAME</code>...</samp>.  Some
  examples of supported build configurations are:
! </p>
! <dl compact="compact">
! <dt>&lsquo;<samp>bootstrap-O1</samp>&rsquo;</dt>
! <dd><p>Removes any <samp>-O</samp>-started option from <code>BOOT_CFLAGS</code>, and adds
! <samp>-O1</samp> to it.  &lsquo;<samp>BUILD_CONFIG=bootstrap-O1</samp>&rsquo; is equivalent to
! &lsquo;<samp>BOOT_CFLAGS='-g -O1'</samp>&rsquo;.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-O3</samp>&rsquo;</dt>
! <dd><p>Analogous to <code>bootstrap-O1</code>.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-lto</samp>&rsquo;</dt>
! <dd><p>Enables Link-Time Optimization for host tools during bootstrapping.
! &lsquo;<samp>BUILD_CONFIG=bootstrap-lto</samp>&rsquo; is equivalent to adding
! <samp>-flto</samp> to &lsquo;<samp>BOOT_CFLAGS</samp>&rsquo;.  This option assumes that the host
  supports the linker plugin (e.g. GNU ld version 2.21 or later or GNU gold
  version 2.21 or later).
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-lto-noplugin</samp>&rsquo;</dt>
! <dd><p>This option is similar to <code>bootstrap-lto</code>, but is intended for
! hosts that do not support the linker plugin.  Without the linker plugin 
! static libraries are not compiled with link-time optimizations.  Since 
! the GCC middle end and back end are in <samp>libbackend.a</samp> this means
  that only the front end is actually LTO optimized.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-debug</samp>&rsquo;</dt>
! <dd><p>Verifies that the compiler generates the same executable code, whether
  or not it is asked to emit debug information.  To this end, this
  option builds stage2 host programs without debug information, and uses
! <samp>contrib/compare-debug</samp> to compare them with the stripped stage3
  object files.  If <code>BOOT_CFLAGS</code> is overridden so as to not enable
! debug information, stage2 will have it, and stage3 won&rsquo;t.  This option
  is enabled by default when GCC bootstrapping is enabled, if
  <code>strip</code> can turn object files compiled with and without debug
  info into identical object files.  In addition to better test
  coverage, this option makes default bootstraps faster and leaner.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-debug-big</samp>&rsquo;</dt>
! <dd><p>Rather than comparing stripped object files, as in
  <code>bootstrap-debug</code>, this option saves internal compiler dumps
  during stage2 and stage3 and compares them as well, which helps catch
  additional potential problems, but at a great cost in terms of disk
! space.  It can be specified in addition to &lsquo;<samp>bootstrap-debug</samp>&rsquo;.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-debug-lean</samp>&rsquo;</dt>
! <dd><p>This option saves disk space compared with <code>bootstrap-debug-big</code>,
  but at the expense of some recompilation.  Instead of saving the dumps
  of stage2 and stage3 until the final compare, it uses
! <samp>-fcompare-debug</samp> to generate, compare and remove the dumps
  during stage3, repeating the compilation that already took place in
  stage2, whose dumps were not saved.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-debug-lib</samp>&rsquo;</dt>
! <dd><p>This option tests executable code invariance over debug information
  generation on target libraries, just like <code>bootstrap-debug-lean</code>
  tests it on host programs.  It builds stage3 libraries with
! <samp>-fcompare-debug</samp>, and it can be used along with any of the
  <code>bootstrap-debug</code> options above.
! </p>
! <p>There aren&rsquo;t <code>-lean</code> or <code>-big</code> counterparts to this option
  because most libraries are only build in stage3, so bootstrap compares
  would not get significant coverage.  Moreover, the few libraries built
! in stage2 are used in stage3 host programs, so we wouldn&rsquo;t want to
  compile stage2 libraries with different options for comparison purposes.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-debug-ckovw</samp>&rsquo;</dt>
! <dd><p>Arranges for error messages to be issued if the compiler built on any
! stage is run without the option <samp>-fcompare-debug</samp>.  This is
! useful to verify the full <samp>-fcompare-debug</samp> testing coverage.  It
  must be used along with <code>bootstrap-debug-lean</code> and
  <code>bootstrap-debug-lib</code>.
! </p>
! </dd>
! <dt>&lsquo;<samp>bootstrap-time</samp>&rsquo;</dt>
! <dd><p>Arranges for the run time of each program started by the GCC driver,
! built in any stage, to be logged to <samp>time.log</samp>, in the top level of
  the build tree.
+ </p>
+ </dd>
+ </dl>
  
! <a name="Building-a-cross-compiler"></a>
! <h3 class="section">Building a cross compiler</h3>
  
  <p>When building a cross compiler, it is not generally possible to do a
  3-stage bootstrap of the compiler.  This makes for an interesting problem
  as parts of GCC can only be built with GCC.
! </p>
! <p>To build a cross compiler, we recommend first building and installing a
  native compiler.  You can then use the native GCC compiler to build the
  cross compiler.  The installed native compiler needs to be GCC version
  2.95 or later.
! </p>
! <p>If the cross compiler is to be built with support for the Java
  programming language and the ability to compile .java source files is
  desired, the installed native compiler used to build the cross
  compiler needs to be the same GCC version as the cross compiler.  In
  addition the cross compiler needs to be configured with
! <samp>--with-ecj-jar=&hellip;</samp>.
! </p>
! <p>Assuming you have already installed a native copy of GCC and configured
! your cross compiler, issue the command <code>make</code>, which performs the
  following steps:
+ </p>
+ <ul>
+ <li> Build host tools necessary to build the compiler.
  
! </li><li> Build target tools for use by the compiler such as binutils (bfd,
  binutils, gas, gprof, ld, and opcodes)
  if they have been individually linked or moved into the top level GCC source
  tree before configuring.
  
! </li><li> Build the compiler (single stage only).
  
! </li><li> Build runtime libraries using the compiler from the previous step.
! </li></ul>
  
! <p>Note that if an error occurs in any step the make process will exit.
! </p>
! <p>If you are not building GNU binutils in the same source tree as GCC,
  you will need a cross-assembler and cross-linker installed before
  configuring GCC.  Put them in the directory
! <samp><var>prefix</var>/<var>target</var>/bin</samp>.  Here is a table of the tools
  you should put in this directory:
! </p>
! <dl compact="compact">
! <dt><samp>as</samp></dt>
! <dd><p>This should be the cross-assembler.
! </p>
! </dd>
! <dt><samp>ld</samp></dt>
! <dd><p>This should be the cross-linker.
! </p>
! </dd>
! <dt><samp>ar</samp></dt>
! <dd><p>This should be the cross-archiver: a program which can manipulate
! archive files (linker libraries) in the target machine&rsquo;s format.
! </p>
! </dd>
! <dt><samp>ranlib</samp></dt>
! <dd><p>This should be a program to construct a symbol table in an archive file.
! </p></dd>
  </dl>
  
! <p>The installation of GCC will find these programs in that directory,
  and copy or link them to the proper place to for the cross-compiler to
  find them when run later.
! </p>
! <p>The easiest way to provide these files is to build the Binutils package.
! Configure it with the same <samp>--host</samp> and <samp>--target</samp>
  options that you use for configuring GCC, then build and install
  them.  They install their executables automatically into the proper
  directory.  Alas, they do not support all the targets that GCC
  supports.
! </p>
! <p>If you are not building a C library in the same source tree as GCC,
  you should also provide the target libraries and headers before
  configuring GCC, specifying the directories with
! <samp>--with-sysroot</samp> or <samp>--with-headers</samp> and
! <samp>--with-libs</samp>.  Many targets also require &ldquo;start files&rdquo; such
! as <samp>crt0.o</samp> and
! <samp>crtn.o</samp> which are linked into each executable.  There may be several
! alternatives for <samp>crt0.o</samp>, for use with profiling or other
! compilation options.  Check your target&rsquo;s definition of
  <code>STARTFILE_SPEC</code> to find out what start files it uses.
! </p>
! <a name="Building-in-parallel"></a>
! <h3 class="section">Building in parallel</h3>
  
  <p>GNU Make 3.80 and above, which is necessary to build GCC, support
! building in parallel.  To activate this, you can use &lsquo;<samp>make -j 2</samp>&rsquo;
! instead of &lsquo;<samp>make</samp>&rsquo;.  You can also specify a bigger number, and
  in most cases using a value greater than the number of processors in
  your machine will result in fewer and shorter I/O latency hits, thus
  improving overall throughput; this is especially true for slow drives
  and network filesystems.
! </p>
! <a name="Building-the-Ada-compiler"></a>
! <h3 class="section">Building the Ada compiler</h3>
  
  <p>In order to build GNAT, the Ada compiler, you need a working GNAT
! compiler (GCC version 4.0 or later).
! This includes GNAT tools such as <code>gnatmake</code> and
! <code>gnatlink</code>, since the Ada front end is written in Ada and
  uses some GNAT-specific extensions.
! </p>
! <p>In order to build a cross compiler, it is suggested to install
  the new compiler as native first, and then use it to build the cross
  compiler.
! </p>
! <p><code>configure</code> does not test whether the GNAT installation works
  and has a sufficiently recent version; if too old a GNAT version is
! installed, the build will fail unless <samp>--enable-languages</samp> is
  used to disable building the Ada front end.
! </p>
! <p><code>ADA_INCLUDE_PATH</code> and <code>ADA_OBJECT_PATH</code> environment variables
  must not be set when building the Ada compiler, the Ada tools, or the
  Ada runtime libraries. You can check that your build environment is clean
! by verifying that &lsquo;<samp>gnatls -v</samp>&rsquo; lists only one explicit path in each
  section.
! </p>
! <a name="Building-with-profile-feedback"></a>
! <h3 class="section">Building with profile feedback</h3>
  
  <p>It is possible to use profile feedback to optimize the compiler itself.  This
  should result in a faster compiler binary.  Experiments done on x86 using gcc
  3.3 showed approximately 7 percent speedup on compiling C programs.  To
  bootstrap the compiler with profile feedback, use <code>make profiledbootstrap</code>.
! </p>
! <p>When &lsquo;<samp>make profiledbootstrap</samp>&rsquo; is run, it will first build a <code>stage1</code>
  compiler.  This compiler is used to build a <code>stageprofile</code> compiler
  instrumented to collect execution counts of instruction and branch
! probabilities.  Then runtime libraries are compiled with profile collected.
  Finally a <code>stagefeedback</code> compiler is built using the information collected.
! </p>
! <p>Unlike standard bootstrap, several additional restrictions apply.  The
! compiler used to build <code>stage1</code> needs to support a 64-bit integral type.
  It is recommended to only use GCC for this.
! </p>
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
+ 
  
  
+ 
+ 
+ <hr>
+ 
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/configure.html gcc-6.5.0/INSTALL/configure.html
*** gcc-6.4.0/INSTALL/configure.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/configure.html	Fri Oct 26 09:56:38 2018
***************
*** 1,495 ****
! <html lang="en">
! <head>
! <title>Installing GCC: Configuration</title>
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  </head>
- <body>
- <h1 class="settitle">Installing GCC: Configuration</h1>
- <a name="index-Configuration-1"></a><a name="index-Installing-GCC_003a-Configuration-2"></a>
- Like most GNU software, GCC must be configured before it can be built. 
- This document describes the recommended configuration procedure
- for both native and cross targets.
  
!    <p>We use <var>srcdir</var> to refer to the toplevel source directory for
! GCC; we use <var>objdir</var> to refer to the toplevel build/object directory.
  
-    <p>If you obtained the sources via SVN, <var>srcdir</var> must refer to the top
- <samp><span class="file">gcc</span></samp> directory, the one where the <samp><span class="file">MAINTAINERS</span></samp> file can be
- found, and not its <samp><span class="file">gcc</span></samp> subdirectory, otherwise the build will fail.
  
!    <p>If either <var>srcdir</var> or <var>objdir</var> is located on an automounted NFS
! file system, the shell's built-in <samp><span class="command">pwd</span></samp> command will return
  temporary pathnames.  Using these can lead to various sorts of build
! problems.  To avoid this issue, set the <samp><span class="env">PWDCMD</span></samp> environment
! variable to an automounter-aware <samp><span class="command">pwd</span></samp> command, e.g.,
! <samp><span class="command">pawd</span></samp> or &lsquo;<samp><span class="samp">amq -w</span></samp>&rsquo;, during the configuration and build
  phases.
! 
!    <p>First, we <strong>highly</strong> recommend that GCC be built into a
  separate directory from the sources which does <strong>not</strong> reside
  within the source tree.  This is how we generally build GCC; building
! where <var>srcdir</var> == <var>objdir</var> should still work, but doesn't
  get extensive testing; building where <var>objdir</var> is a subdirectory
  of <var>srcdir</var> is unsupported.
! 
!    <p>If you have previously built GCC in the same directory for a
! different target machine, do &lsquo;<samp><span class="samp">make distclean</span></samp>&rsquo; to delete all files
! that might be invalid.  One of the files this deletes is <samp><span class="file">Makefile</span></samp>;
! if &lsquo;<samp><span class="samp">make distclean</span></samp>&rsquo; complains that <samp><span class="file">Makefile</span></samp> does not exist
! or issues a message like &ldquo;don't know how to make distclean&rdquo; it probably
  means that the directory is already suitably clean.  However, with the
  recommended method of building in a separate <var>objdir</var>, you should
  simply use a different <var>objdir</var> for each target.
! 
!    <p>Second, when configuring a native system, either <samp><span class="command">cc</span></samp> or
! <samp><span class="command">gcc</span></samp> must be in your path or you must set <samp><span class="env">CC</span></samp> in
  your environment before running configure.  Otherwise the configuration
  scripts may fail.
  
!    <p>To configure GCC:
  
! <pre class="smallexample">     % mkdir <var>objdir</var>
!      % cd <var>objdir</var>
!      % <var>srcdir</var>/configure [<var>options</var>] [<var>target</var>]
! </pre>
!    <h3 class="heading"><a name="TOC0"></a>Distributor options</h3>
  
  <p>If you will be distributing binary versions of GCC, with modifications
  to the source code, you should use the options described in this
  section to make clear that your version contains modifications.
! 
!      <dl>
! <dt><code>--with-pkgversion=</code><var>version</var><dd>Specify a string that identifies your package.  You may wish
  to include a build number or build date.  This version string will be
! included in the output of <samp><span class="command">gcc --version</span></samp>.  This suffix does
! not replace the default version string, only the &lsquo;<samp><span class="samp">GCC</span></samp>&rsquo; part.
! 
!      <p>The default value is &lsquo;<samp><span class="samp">GCC</span></samp>&rsquo;.
! 
!      <br><dt><code>--with-bugurl=</code><var>url</var><dd>Specify the URL that users should visit if they wish to report a bug. 
  You are of course welcome to forward bugs reported to you to the FSF,
  if you determine that they are not bugs in your modifications.
  
!      <p>The default value refers to the FSF's GCC bug tracker.
! 
!    </dl>
! 
! <h3 class="heading"><a name="TOC1"></a>Target specification</h3>
! 
!      <ul>
! <li>GCC has code to correctly determine the correct value for <var>target</var>
  for nearly all native systems.  Therefore, we highly recommend you do
  not provide a configure target when configuring a native compiler.
  
!      <li><var>target</var> must be specified as <samp><span class="option">--target=</span><var>target</var></samp>
  when configuring a cross compiler; examples of valid targets would be
  m68k-elf, sh-elf, etc.
  
!      <li>Specifying just <var>target</var> instead of <samp><span class="option">--target=</span><var>target</var></samp>
! implies that the host defaults to <var>target</var>. 
! </ul>
  
! <h3 class="heading"><a name="TOC2"></a>Options specification</h3>
  
  <p>Use <var>options</var> to override several configure time options for
! GCC.  A list of supported <var>options</var> follows; &lsquo;<samp><span class="samp">configure
! --help</span></samp>&rsquo; may list other options, but those not listed below may not
  work and should not normally be used.
! 
!    <p>Note that each <samp><span class="option">--enable</span></samp> option has a corresponding
! <samp><span class="option">--disable</span></samp> option and that each <samp><span class="option">--with</span></samp> option has a
! corresponding <samp><span class="option">--without</span></samp> option.
! 
!      <dl>
! <dt><code>--prefix=</code><var>dirname</var><dd>Specify the toplevel installation
  directory.  This is the recommended way to install the tools into a directory
  other than the default.  The toplevel installation directory defaults to
! <samp><span class="file">/usr/local</span></samp>.
! 
!      <p>We <strong>highly</strong> recommend against <var>dirname</var> being the same or a
  subdirectory of <var>objdir</var> or vice versa.  If specifying a directory
! beneath a user's home directory tree, some shells will not expand
! <var>dirname</var> correctly if it contains the &lsquo;<samp><span class="samp">~</span></samp>&rsquo; metacharacter; use
! <samp><span class="env">$HOME</span></samp> instead.
! 
!      <p>The following standard <samp><span class="command">autoconf</span></samp> options are supported.  Normally you
  should not need to use these options.
!           <dl>
! <dt><code>--exec-prefix=</code><var>dirname</var><dd>Specify the toplevel installation directory for architecture-dependent
  files.  The default is <samp><var>prefix</var></samp>.
! 
!           <br><dt><code>--bindir=</code><var>dirname</var><dd>Specify the installation directory for the executables called by users
! (such as <samp><span class="command">gcc</span></samp> and <samp><span class="command">g++</span></samp>).  The default is
! <samp><var>exec-prefix</var><span class="file">/bin</span></samp>.
! 
!           <br><dt><code>--libdir=</code><var>dirname</var><dd>Specify the installation directory for object code libraries and
! internal data files of GCC.  The default is <samp><var>exec-prefix</var><span class="file">/lib</span></samp>.
! 
!           <br><dt><code>--libexecdir=</code><var>dirname</var><dd>Specify the installation directory for internal executables of GCC. 
! The default is <samp><var>exec-prefix</var><span class="file">/libexec</span></samp>.
! 
!           <br><dt><code>--with-slibdir=</code><var>dirname</var><dd>Specify the installation directory for the shared libgcc library.  The
  default is <samp><var>libdir</var></samp>.
! 
!           <br><dt><code>--datarootdir=</code><var>dirname</var><dd>Specify the root of the directory tree for read-only architecture-independent
! data files referenced by GCC.  The default is <samp><var>prefix</var><span class="file">/share</span></samp>.
! 
!           <br><dt><code>--infodir=</code><var>dirname</var><dd>Specify the installation directory for documentation in info format. 
! The default is <samp><var>datarootdir</var><span class="file">/info</span></samp>.
! 
!           <br><dt><code>--datadir=</code><var>dirname</var><dd>Specify the installation directory for some architecture-independent
  data files referenced by GCC.  The default is <samp><var>datarootdir</var></samp>.
! 
!           <br><dt><code>--docdir=</code><var>dirname</var><dd>Specify the installation directory for documentation files (other
! than Info) for GCC.  The default is <samp><var>datarootdir</var><span class="file">/doc</span></samp>.
! 
!           <br><dt><code>--htmldir=</code><var>dirname</var><dd>Specify the installation directory for HTML documentation files. 
  The default is <samp><var>docdir</var></samp>.
! 
!           <br><dt><code>--pdfdir=</code><var>dirname</var><dd>Specify the installation directory for PDF documentation files. 
  The default is <samp><var>docdir</var></samp>.
! 
!           <br><dt><code>--mandir=</code><var>dirname</var><dd>Specify the installation directory for manual pages.  The default is
! <samp><var>datarootdir</var><span class="file">/man</span></samp>.  (Note that the manual pages are only extracts
  from the full GCC manuals, which are provided in Texinfo format.  The manpages
  are derived by an automatic conversion process from parts of the full
  manual.)
! 
!           <br><dt><code>--with-gxx-include-dir=</code><var>dirname</var><dd>Specify
  the installation directory for G++ header files.  The default depends
  on other configuration options, and differs between cross and native
  configurations.
! 
!           <br><dt><code>--with-specs=</code><var>specs</var><dd>Specify additional command line driver SPECS. 
  This can be useful if you need to turn on a non-standard feature by
! default without modifying the compiler's source code, for instance
! <samp><span class="option">--with-specs=%{!fcommon:%{!fno-common:-fno-common}}</span></samp>. 
  See &ldquo;Spec Files&rdquo; in the main manual
  
!      </dl>
! 
!      <br><dt><code>--program-prefix=</code><var>prefix</var><dd>GCC supports some transformations of the names of its programs when
  installing them.  This option prepends <var>prefix</var> to the names of
  programs to install in <var>bindir</var> (see above).  For example, specifying
! <samp><span class="option">--program-prefix=foo-</span></samp> would result in &lsquo;<samp><span class="samp">gcc</span></samp>&rsquo;
! being installed as <samp><span class="file">/usr/local/bin/foo-gcc</span></samp>.
! 
!      <br><dt><code>--program-suffix=</code><var>suffix</var><dd>Appends <var>suffix</var> to the names of programs to install in <var>bindir</var>
! (see above).  For example, specifying <samp><span class="option">--program-suffix=-3.1</span></samp>
! would result in &lsquo;<samp><span class="samp">gcc</span></samp>&rsquo; being installed as
! <samp><span class="file">/usr/local/bin/gcc-3.1</span></samp>.
! 
!      <br><dt><code>--program-transform-name=</code><var>pattern</var><dd>Applies the &lsquo;<samp><span class="samp">sed</span></samp>&rsquo; script <var>pattern</var> to be applied to the names
  of programs to install in <var>bindir</var> (see above).  <var>pattern</var> has to
! consist of one or more basic &lsquo;<samp><span class="samp">sed</span></samp>&rsquo; editing commands, separated by
! semicolons.  For example, if you want the &lsquo;<samp><span class="samp">gcc</span></samp>&rsquo; program name to be
! transformed to the installed program <samp><span class="file">/usr/local/bin/myowngcc</span></samp> and
! the &lsquo;<samp><span class="samp">g++</span></samp>&rsquo; program name to be transformed to
! <samp><span class="file">/usr/local/bin/gspecial++</span></samp> without changing other program names,
  you could use the pattern
! <samp><span class="option">--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/'</span></samp>
  to achieve this effect.
! 
!      <p>All three options can be combined and used together, resulting in more
  complex conversion patterns.  As a basic rule, <var>prefix</var> (and
  <var>suffix</var>) are prepended (appended) before further transformations
  can happen with a special transformation script <var>pattern</var>.
! 
!      <p>As currently implemented, this option only takes effect for native
! builds; cross compiler binaries' names are not transformed even when a
  transformation is explicitly asked for by one of these options.
! 
!      <p>For native builds, some of the installed programs are also installed
  with the target alias in front of their name, as in
! &lsquo;<samp><span class="samp">i686-pc-linux-gnu-gcc</span></samp>&rsquo;.  All of the above transformations happen
  before the target alias is prepended to the name&mdash;so, specifying
! <samp><span class="option">--program-prefix=foo-</span></samp> and <samp><span class="option">program-suffix=-3.1</span></samp>, the
  resulting binary would be installed as
! <samp><span class="file">/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1</span></samp>.
! 
!      <p>As a last shortcoming, none of the installed Ada programs are
  transformed yet, which will be fixed in some time.
! 
!      <br><dt><code>--with-local-prefix=</code><var>dirname</var><dd>Specify the
  installation directory for local include files.  The default is
! <samp><span class="file">/usr/local</span></samp>.  Specify this option if you want the compiler to
! search directory <samp><var>dirname</var><span class="file">/include</span></samp> for locally installed
! header files <em>instead</em> of <samp><span class="file">/usr/local/include</span></samp>.
! 
!      <p>You should specify <samp><span class="option">--with-local-prefix</span></samp> <strong>only</strong> if your
! site has a different convention (not <samp><span class="file">/usr/local</span></samp>) for where to put
  site-specific files.
! 
!      <p>The default value for <samp><span class="option">--with-local-prefix</span></samp> is <samp><span class="file">/usr/local</span></samp>
! regardless of the value of <samp><span class="option">--prefix</span></samp>.  Specifying
! <samp><span class="option">--prefix</span></samp> has no effect on which directory GCC searches for
  local header files.  This may seem counterintuitive, but actually it is
  logical.
! 
!      <p>The purpose of <samp><span class="option">--prefix</span></samp> is to specify where to <em>install
! GCC</em>.  The local header files in <samp><span class="file">/usr/local/include</span></samp>&mdash;if you put
  any in that directory&mdash;are not part of GCC.  They are part of other
  programs&mdash;perhaps many others.  (GCC installs its own header files in
! another directory which is based on the <samp><span class="option">--prefix</span></samp> value.)
! 
!      <p>Both the local-prefix include directory and the GCC-prefix include
! directory are part of GCC's &ldquo;system include&rdquo; directories.  Although these
  two directories are not fixed, they need to be searched in the proper
  order for the correct processing of the include_next directive.  The
  local-prefix include directory is searched before the GCC-prefix
  include directory.  Another characteristic of system include directories
  is that pedantic warnings are turned off for headers in these directories.
! 
!      <p>Some autoconf macros add <samp><span class="option">-I </span><var>directory</var></samp> options to the
  compiler command line, to ensure that directories containing installed
! packages' headers are searched.  When <var>directory</var> is one of GCC's
  system include directories, GCC will ignore the option so that system
  directories continue to be processed in the correct order.  This
  may result in a search order different from what was specified but the
  directory will still be searched.
! 
!      <p>GCC automatically searches for ordinary libraries using
! <samp><span class="env">GCC_EXEC_PREFIX</span></samp>.  Thus, when the same installation prefix is
  used for both GCC and packages, GCC will automatically search for
  both headers and libraries.  This provides a configuration that is
  easy to use.  GCC behaves in a manner similar to that when it is
! installed as a system compiler in <samp><span class="file">/usr</span></samp>.
! 
!      <p>Sites that need to install multiple versions of GCC may not want to
  use the above simple configuration.  It is possible to use the
! <samp><span class="option">--program-prefix</span></samp>, <samp><span class="option">--program-suffix</span></samp> and
! <samp><span class="option">--program-transform-name</span></samp> options to install multiple versions
  into a single directory, but it may be simpler to use different prefixes
! and the <samp><span class="option">--with-local-prefix</span></samp> option to specify the location of the
  site-specific files for each version.  It will then be necessary for
  users to specify explicitly the location of local site libraries
! (e.g., with <samp><span class="env">LIBRARY_PATH</span></samp>).
! 
!      <p>The same value can be used for both <samp><span class="option">--with-local-prefix</span></samp> and
! <samp><span class="option">--prefix</span></samp> provided it is not <samp><span class="file">/usr</span></samp>.  This can be used
! to avoid the default search of <samp><span class="file">/usr/local/include</span></samp>.
! 
!      <p><strong>Do not</strong> specify <samp><span class="file">/usr</span></samp> as the <samp><span class="option">--with-local-prefix</span></samp>! 
! The directory you use for <samp><span class="option">--with-local-prefix</span></samp> <strong>must not</strong>
! contain any of the system's standard header files.  If it did contain
  them, certain programs would be miscompiled (including GNU Emacs, on
  certain targets), because this would override and nullify the header
! file corrections made by the <samp><span class="command">fixincludes</span></samp> script.
! 
!      <p>Indications are that people who use this option use it based on mistaken
  ideas of what it is for.  People use it as if it specified where to
  install part of GCC.  Perhaps they make this assumption because
  installing GCC creates the directory.
! 
!      <br><dt><code>--with-native-system-header-dir=</code><var>dirname</var><dd>Specifies that <var>dirname</var> is the directory that contains native system
! header files, rather than <samp><span class="file">/usr/include</span></samp>.  This option is most useful
  if you are creating a compiler that should be isolated from the system
  as much as possible.  It is most commonly used with the
! <samp><span class="option">--with-sysroot</span></samp> option and will cause GCC to search
  <var>dirname</var> inside the system root specified by that option.
! 
!      <br><dt><code>--enable-shared[=</code><var>package</var><code>[,...]]</code><dd>Build shared versions of libraries, if shared libraries are supported on
  the target platform.  Unlike GCC 2.95.x and earlier, shared libraries
  are enabled by default on all platforms that support shared libraries.
! 
!      <p>If a list of packages is given as an argument, build shared libraries
  only for the listed packages.  For other packages, only static libraries
  will be built.  Package names currently recognized in the GCC tree are
! &lsquo;<samp><span class="samp">libgcc</span></samp>&rsquo; (also known as &lsquo;<samp><span class="samp">gcc</span></samp>&rsquo;), &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo; (not
! &lsquo;<samp><span class="samp">libstdc++-v3</span></samp>&rsquo;), &lsquo;<samp><span class="samp">libffi</span></samp>&rsquo;, &lsquo;<samp><span class="samp">zlib</span></samp>&rsquo;, &lsquo;<samp><span class="samp">boehm-gc</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">ada</span></samp>&rsquo;, &lsquo;<samp><span class="samp">libada</span></samp>&rsquo;, &lsquo;<samp><span class="samp">libjava</span></samp>&rsquo;, &lsquo;<samp><span class="samp">libgo</span></samp>&rsquo;, and &lsquo;<samp><span class="samp">libobjc</span></samp>&rsquo;. 
! Note &lsquo;<samp><span class="samp">libiberty</span></samp>&rsquo; does not support shared libraries at all.
! 
!      <p>Use <samp><span class="option">--disable-shared</span></samp> to build only static libraries.  Note that
! <samp><span class="option">--disable-shared</span></samp> does not accept a list of package names as
! argument, only <samp><span class="option">--enable-shared</span></samp> does.
! 
!      <p>Contrast with <samp><span class="option">--enable-host-shared</span></samp>, which affects <em>host</em>
  code.
! 
!      <br><dt><code>--enable-host-shared</code><dd>Specify that the <em>host</em> code should be built into position-independent
  machine code (with -fPIC), allowing it to be used within shared libraries,
  but yielding a slightly slower compiler.
! 
!      <p>This option is required when building the libgccjit.so library.
! 
!      <p>Contrast with <samp><span class="option">--enable-shared</span></samp>, which affects <em>target</em>
  libraries.
! 
!      <br><dt><code><a name="with_002dgnu_002das"></a>--with-gnu-as</code><dd>Specify that the compiler should assume that the
  assembler it finds is the GNU assembler.  However, this does not modify
  the rules to find an assembler and will result in confusion if the
  assembler found is not actually the GNU assembler.  (Confusion may also
  result if the compiler finds the GNU assembler but has not been
! configured with <samp><span class="option">--with-gnu-as</span></samp>.)  If you have more than one
  assembler installed on your system, you may want to use this option in
! connection with <samp><span class="option">--with-as=</span><var>pathname</var></samp> or
! <samp><span class="option">--with-build-time-tools=</span><var>pathname</var></samp>.
! 
!      <p>The following systems are the only ones where it makes a difference
  whether you use the GNU assembler.  On any other system,
! <samp><span class="option">--with-gnu-as</span></samp> has no effect.
! 
!           <ul>
! <li>&lsquo;<samp><span class="samp">hppa1.0-</span><var>any</var><span class="samp">-</span><var>any</var></samp>&rsquo;
! <li>&lsquo;<samp><span class="samp">hppa1.1-</span><var>any</var><span class="samp">-</span><var>any</var></samp>&rsquo;
! <li>&lsquo;<samp><span class="samp">sparc-sun-solaris2.</span><var>any</var></samp>&rsquo;
! <li>&lsquo;<samp><span class="samp">sparc64-</span><var>any</var><span class="samp">-solaris2.</span><var>any</var></samp>&rsquo;
! </ul>
  
!      <br><dt><code><a name="with_002das"></a>--with-as=</code><var>pathname</var><dd>Specify that the compiler should use the assembler pointed to by
  <var>pathname</var>, rather than the one found by the standard rules to find
  an assembler, which are:
!           <ul>
! <li>Unless GCC is being built with a cross compiler, check the
! <samp><var>libexec</var><span class="file">/gcc/</span><var>target</var><span class="file">/</span><var>version</var></samp> directory. 
! <var>libexec</var> defaults to <samp><var>exec-prefix</var><span class="file">/libexec</span></samp>;
  <var>exec-prefix</var> defaults to <var>prefix</var>, which
! defaults to <samp><span class="file">/usr/local</span></samp> unless overridden by the
! <samp><span class="option">--prefix=</span><var>pathname</var></samp> switch described above.  <var>target</var>
! is the target system triple, such as &lsquo;<samp><span class="samp">sparc-sun-solaris2.7</span></samp>&rsquo;, and
  <var>version</var> denotes the GCC version, such as 3.0.
  
!           <li>If the target system is the same that you are building on, check
! operating system specific directories (e.g. <samp><span class="file">/usr/ccs/bin</span></samp> on
  Sun Solaris 2).
  
!           <li>Check in the <samp><span class="env">PATH</span></samp> for a tool whose name is prefixed by the
  target system triple.
  
!           <li>Check in the <samp><span class="env">PATH</span></samp> for a tool whose name is not prefixed by the
  target system triple, if the host and target system triple are
  the same (in other words, we use a host tool if it can be used for
! the target as well). 
! </ul>
  
!      <p>You may want to use <samp><span class="option">--with-as</span></samp> if no assembler
  is installed in the directories listed above, or if you have multiple
  assemblers installed and want to choose one that is not found by the
  above rules.
! 
!      <br><dt><code><a name="with_002dgnu_002dld"></a>--with-gnu-ld</code><dd>Same as <a href="#with-gnu-as"><samp><span class="option">--with-gnu-as</span></samp></a>
  but for the linker.
! 
!      <br><dt><code>--with-ld=</code><var>pathname</var><dd>Same as <a href="#with-as"><samp><span class="option">--with-as</span></samp></a>
  but for the linker.
! 
!      <br><dt><code>--with-stabs</code><dd>Specify that stabs debugging
  information should be used instead of whatever format the host normally
  uses.  Normally GCC uses the same debug format as the host system.
! 
!      <p>On MIPS based systems and on Alphas, you must specify whether you want
  GCC to create the normal ECOFF debugging format, or to use BSD-style
  stabs passed through the ECOFF symbol table.  The normal ECOFF debug
  format cannot fully handle languages other than C.  BSD stabs format can
  handle other languages, but it only works with the GNU debugger GDB.
! 
!      <p>Normally, GCC uses the ECOFF debugging format by default; if you
! prefer BSD stabs, specify <samp><span class="option">--with-stabs</span></samp> when you configure GCC.
! 
!      <p>No matter which default you choose when you configure GCC, the user
! can use the <samp><span class="option">-gcoff</span></samp> and <samp><span class="option">-gstabs+</span></samp> options to specify explicitly
  the debug format for a particular compilation.
! 
!      <p><samp><span class="option">--with-stabs</span></samp> is meaningful on the ISC system on the 386, also, if
! <samp><span class="option">--with-gas</span></samp> is used.  It selects use of stabs debugging
  information embedded in COFF output.  This kind of debugging information
  supports C++ well; ordinary COFF debugging information does not.
! 
!      <p><samp><span class="option">--with-stabs</span></samp> is also meaningful on 386 systems running SVR4.  It
  selects use of stabs debugging information embedded in ELF output.  The
  C++ compiler currently (2.6.0) does not support the DWARF debugging
  information normally used on 386 SVR4 platforms; stabs provide a
  workable alternative.  This requires gas and gdb, as the normal SVR4
  tools can not generate or interpret stabs.
! 
!      <br><dt><code>--with-tls=</code><var>dialect</var><dd>Specify the default TLS dialect, for systems were there is a choice. 
  For ARM targets, possible values for <var>dialect</var> are <code>gnu</code> or
  <code>gnu2</code>, which select between the original GNU dialect and the GNU TLS
  descriptor-based dialect.
! 
!      <br><dt><code>--enable-multiarch</code><dd>Specify whether to enable or disable multiarch support.  The default is
  to check for glibc start files in a multiarch location, and enable it
  if the files are found.  The auto detection is enabled for native builds,
! and for cross builds configured with <samp><span class="option">--with-sysroot</span></samp>, and without
! <samp><span class="option">--with-native-system-header-dir</span></samp>. 
  More documentation about multiarch can be found at
  <a href="https://wiki.debian.org/Multiarch">https://wiki.debian.org/Multiarch</a>.
! 
!      <br><dt><code>--enable-sjlj-exceptions</code><dd>Force use of the <code>setjmp</code>/<code>longjmp</code>-based scheme for exceptions. 
! &lsquo;<samp><span class="samp">configure</span></samp>&rsquo; ordinarily picks the correct value based on the platform. 
  Only use this option if you are sure you need a different setting.
! 
!      <br><dt><code>--enable-vtable-verify</code><dd>Specify whether to enable or disable the vtable verification feature. 
  Enabling this feature causes libstdc++ to be built with its virtual calls
  in verifiable mode.  This means that, when linked with libvtv, every
  virtual call in libstdc++ will verify the vtable pointer through which the
  call will be made before actually making the call.  If not linked with libvtv,
! the verifier will call stub functions (in libstdc++ itself) and do nothing. 
  If vtable verification is disabled, then libstdc++ is not built with its
  virtual calls in verifiable mode at all.  However the libvtv library will
! still be built (see <samp><span class="option">--disable-libvtv</span></samp> to turn off building libvtv). 
! <samp><span class="option">--disable-vtable-verify</span></samp> is the default.
! 
!      <br><dt><code>--disable-multilib</code><dd>Specify that multiple target
  libraries to support different target variants, calling
  conventions, etc. should not be built.  The default is to build a
  predefined set of them.
! 
!      <p>Some targets provide finer-grained control over which multilibs are built
! (e.g., <samp><span class="option">--disable-softfloat</span></samp>):
!           <dl>
! <dt><code>arm-*-*</code><dd>fpu, 26bit, underscore, interwork, biendian, nofmult.
! 
!           <br><dt><code>m68*-*-*</code><dd>softfloat, m68881, m68000, m68020.
! 
!           <br><dt><code>mips*-*-*</code><dd>single-float, biendian, softfloat.
! 
!           <br><dt><code>powerpc*-*-*, rs6000*-*-*</code><dd>aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian,
  sysv, aix.
  
!      </dl>
! 
!      <br><dt><code>--with-multilib-list=</code><var>list</var><dt><code>--without-multilib-list</code><dd>Specify what multilibs to build. 
  Currently only implemented for arm*-*-*, sh*-*-* and x86-64-*-linux*.
! 
!           <dl>
! <dt><code>arm*-*-*</code><dd><var>list</var> is either <code>default</code> or <code>aprofile</code>.  Specifying
  <code>default</code> is equivalent to omitting this option while specifying
  <code>aprofile</code> builds multilibs for each combination of ISA (<code>-marm</code> or
  <code>-mthumb</code>), architecture (<code>-march=armv7-a</code>, <code>-march=armv7ve</code>,
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! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
  
  
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Configuration"></a>
! <a name="index-Installing-GCC_003a-Configuration"></a>
! 
! <p>Like most GNU software, GCC must be configured before it can be built.
! This document describes the recommended configuration procedure
! for both native and cross targets.
! </p>
! <p>We use <var>srcdir</var> to refer to the toplevel source directory for
! GCC; we use <var>objdir</var> to refer to the toplevel build/object directory.
! </p>
! <p>If you obtained the sources via SVN, <var>srcdir</var> must refer to the top
! <samp>gcc</samp> directory, the one where the <samp>MAINTAINERS</samp> file can be
! found, and not its <samp>gcc</samp> subdirectory, otherwise the build will fail.
! </p>
! <p>If either <var>srcdir</var> or <var>objdir</var> is located on an automounted NFS
! file system, the shell&rsquo;s built-in <code>pwd</code> command will return
  temporary pathnames.  Using these can lead to various sorts of build
! problems.  To avoid this issue, set the <code>PWDCMD</code> environment
! variable to an automounter-aware <code>pwd</code> command, e.g.,
! <code>pawd</code> or &lsquo;<samp>amq -w</samp>&rsquo;, during the configuration and build
  phases.
! </p>
! <p>First, we <strong>highly</strong> recommend that GCC be built into a
  separate directory from the sources which does <strong>not</strong> reside
  within the source tree.  This is how we generally build GCC; building
! where <var>srcdir</var> == <var>objdir</var> should still work, but doesn&rsquo;t
  get extensive testing; building where <var>objdir</var> is a subdirectory
  of <var>srcdir</var> is unsupported.
! </p>
! <p>If you have previously built GCC in the same directory for a
! different target machine, do &lsquo;<samp>make distclean</samp>&rsquo; to delete all files
! that might be invalid.  One of the files this deletes is <samp>Makefile</samp>;
! if &lsquo;<samp>make distclean</samp>&rsquo; complains that <samp>Makefile</samp> does not exist
! or issues a message like &ldquo;don&rsquo;t know how to make distclean&rdquo; it probably
  means that the directory is already suitably clean.  However, with the
  recommended method of building in a separate <var>objdir</var>, you should
  simply use a different <var>objdir</var> for each target.
! </p>
! <p>Second, when configuring a native system, either <code>cc</code> or
! <code>gcc</code> must be in your path or you must set <code>CC</code> in
  your environment before running configure.  Otherwise the configuration
  scripts may fail.
+ </p>
  
! <p>To configure GCC:
! </p>
! <div class="smallexample">
! <pre class="smallexample">% mkdir <var>objdir</var>
! % cd <var>objdir</var>
! % <var>srcdir</var>/configure [<var>options</var>] [<var>target</var>]
! </pre></div>
  
! <a name="Distributor-options"></a>
! <h3 class="heading">Distributor options</h3>
  
  <p>If you will be distributing binary versions of GCC, with modifications
  to the source code, you should use the options described in this
  section to make clear that your version contains modifications.
! </p>
! <dl compact="compact">
! <dt><code>--with-pkgversion=<var>version</var></code></dt>
! <dd><p>Specify a string that identifies your package.  You may wish
  to include a build number or build date.  This version string will be
! included in the output of <code>gcc --version</code>.  This suffix does
! not replace the default version string, only the &lsquo;<samp>GCC</samp>&rsquo; part.
! </p>
! <p>The default value is &lsquo;<samp>GCC</samp>&rsquo;.
! </p>
! </dd>
! <dt><code>--with-bugurl=<var>url</var></code></dt>
! <dd><p>Specify the URL that users should visit if they wish to report a bug.
  You are of course welcome to forward bugs reported to you to the FSF,
  if you determine that they are not bugs in your modifications.
+ </p>
+ <p>The default value refers to the FSF&rsquo;s GCC bug tracker.
+ </p>
+ </dd>
+ </dl>
  
! <a name="Target-specification"></a>
! <h3 class="heading">Target specification</h3>
! <ul>
! <li> GCC has code to correctly determine the correct value for <var>target</var>
  for nearly all native systems.  Therefore, we highly recommend you do
  not provide a configure target when configuring a native compiler.
  
! </li><li> <var>target</var> must be specified as <samp>--target=<var>target</var></samp>
  when configuring a cross compiler; examples of valid targets would be
  m68k-elf, sh-elf, etc.
  
! </li><li> Specifying just <var>target</var> instead of <samp>--target=<var>target</var></samp>
! implies that the host defaults to <var>target</var>.
! </li></ul>
  
! 
! <a name="Options-specification"></a>
! <h3 class="heading">Options specification</h3>
  
  <p>Use <var>options</var> to override several configure time options for
! GCC.  A list of supported <var>options</var> follows; &lsquo;<samp>configure
! --help</samp>&rsquo; may list other options, but those not listed below may not
  work and should not normally be used.
! </p>
! <p>Note that each <samp>--enable</samp> option has a corresponding
! <samp>--disable</samp> option and that each <samp>--with</samp> option has a
! corresponding <samp>--without</samp> option.
! </p>
! <dl compact="compact">
! <dt><code>--prefix=<var>dirname</var></code></dt>
! <dd><p>Specify the toplevel installation
  directory.  This is the recommended way to install the tools into a directory
  other than the default.  The toplevel installation directory defaults to
! <samp>/usr/local</samp>.
! </p>
! <p>We <strong>highly</strong> recommend against <var>dirname</var> being the same or a
  subdirectory of <var>objdir</var> or vice versa.  If specifying a directory
! beneath a user&rsquo;s home directory tree, some shells will not expand
! <var>dirname</var> correctly if it contains the &lsquo;<samp>~</samp>&rsquo; metacharacter; use
! <code>$HOME</code> instead.
! </p>
! <p>The following standard <code>autoconf</code> options are supported.  Normally you
  should not need to use these options.
! </p><dl compact="compact">
! <dt><code>--exec-prefix=<var>dirname</var></code></dt>
! <dd><p>Specify the toplevel installation directory for architecture-dependent
  files.  The default is <samp><var>prefix</var></samp>.
! </p>
! </dd>
! <dt><code>--bindir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for the executables called by users
! (such as <code>gcc</code> and <code>g++</code>).  The default is
! <samp><var>exec-prefix</var>/bin</samp>.
! </p>
! </dd>
! <dt><code>--libdir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for object code libraries and
! internal data files of GCC.  The default is <samp><var>exec-prefix</var>/lib</samp>.
! </p>
! </dd>
! <dt><code>--libexecdir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for internal executables of GCC.
! The default is <samp><var>exec-prefix</var>/libexec</samp>.
! </p>
! </dd>
! <dt><code>--with-slibdir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for the shared libgcc library.  The
  default is <samp><var>libdir</var></samp>.
! </p>
! </dd>
! <dt><code>--datarootdir=<var>dirname</var></code></dt>
! <dd><p>Specify the root of the directory tree for read-only architecture-independent
! data files referenced by GCC.  The default is <samp><var>prefix</var>/share</samp>.
! </p>
! </dd>
! <dt><code>--infodir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for documentation in info format.
! The default is <samp><var>datarootdir</var>/info</samp>.
! </p>
! </dd>
! <dt><code>--datadir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for some architecture-independent
  data files referenced by GCC.  The default is <samp><var>datarootdir</var></samp>.
! </p>
! </dd>
! <dt><code>--docdir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for documentation files (other
! than Info) for GCC.  The default is <samp><var>datarootdir</var>/doc</samp>.
! </p>
! </dd>
! <dt><code>--htmldir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for HTML documentation files.
  The default is <samp><var>docdir</var></samp>.
! </p>
! </dd>
! <dt><code>--pdfdir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for PDF documentation files.
  The default is <samp><var>docdir</var></samp>.
! </p>
! </dd>
! <dt><code>--mandir=<var>dirname</var></code></dt>
! <dd><p>Specify the installation directory for manual pages.  The default is
! <samp><var>datarootdir</var>/man</samp>.  (Note that the manual pages are only extracts
  from the full GCC manuals, which are provided in Texinfo format.  The manpages
  are derived by an automatic conversion process from parts of the full
  manual.)
! </p>
! </dd>
! <dt><code>--with-gxx-include-dir=<var>dirname</var></code></dt>
! <dd><p>Specify
  the installation directory for G++ header files.  The default depends
  on other configuration options, and differs between cross and native
  configurations.
! </p>
! </dd>
! <dt><code>--with-specs=<var>specs</var></code></dt>
! <dd><p>Specify additional command line driver SPECS.
  This can be useful if you need to turn on a non-standard feature by
! default without modifying the compiler&rsquo;s source code, for instance
! <samp>--with-specs=%{!fcommon:%{!fno-common:-fno-common}}</samp>.
  See &ldquo;Spec Files&rdquo; in the main manual
+ </p>
+ </dd>
+ </dl>
  
! </dd>
! <dt><code>--program-prefix=<var>prefix</var></code></dt>
! <dd><p>GCC supports some transformations of the names of its programs when
  installing them.  This option prepends <var>prefix</var> to the names of
  programs to install in <var>bindir</var> (see above).  For example, specifying
! <samp>--program-prefix=foo-</samp> would result in &lsquo;<samp>gcc</samp>&rsquo;
! being installed as <samp>/usr/local/bin/foo-gcc</samp>.
! </p>
! </dd>
! <dt><code>--program-suffix=<var>suffix</var></code></dt>
! <dd><p>Appends <var>suffix</var> to the names of programs to install in <var>bindir</var>
! (see above).  For example, specifying <samp>--program-suffix=-3.1</samp>
! would result in &lsquo;<samp>gcc</samp>&rsquo; being installed as
! <samp>/usr/local/bin/gcc-3.1</samp>.
! </p>
! </dd>
! <dt><code>--program-transform-name=<var>pattern</var></code></dt>
! <dd><p>Applies the &lsquo;<samp>sed</samp>&rsquo; script <var>pattern</var> to be applied to the names
  of programs to install in <var>bindir</var> (see above).  <var>pattern</var> has to
! consist of one or more basic &lsquo;<samp>sed</samp>&rsquo; editing commands, separated by
! semicolons.  For example, if you want the &lsquo;<samp>gcc</samp>&rsquo; program name to be
! transformed to the installed program <samp>/usr/local/bin/myowngcc</samp> and
! the &lsquo;<samp>g++</samp>&rsquo; program name to be transformed to
! <samp>/usr/local/bin/gspecial++</samp> without changing other program names,
  you could use the pattern
! <samp>--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/'</samp>
  to achieve this effect.
! </p>
! <p>All three options can be combined and used together, resulting in more
  complex conversion patterns.  As a basic rule, <var>prefix</var> (and
  <var>suffix</var>) are prepended (appended) before further transformations
  can happen with a special transformation script <var>pattern</var>.
! </p>
! <p>As currently implemented, this option only takes effect for native
! builds; cross compiler binaries&rsquo; names are not transformed even when a
  transformation is explicitly asked for by one of these options.
! </p>
! <p>For native builds, some of the installed programs are also installed
  with the target alias in front of their name, as in
! &lsquo;<samp>i686-pc-linux-gnu-gcc</samp>&rsquo;.  All of the above transformations happen
  before the target alias is prepended to the name&mdash;so, specifying
! <samp>--program-prefix=foo-</samp> and <samp>program-suffix=-3.1</samp>, the
  resulting binary would be installed as
! <samp>/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1</samp>.
! </p>
! <p>As a last shortcoming, none of the installed Ada programs are
  transformed yet, which will be fixed in some time.
! </p>
! </dd>
! <dt><code>--with-local-prefix=<var>dirname</var></code></dt>
! <dd><p>Specify the
  installation directory for local include files.  The default is
! <samp>/usr/local</samp>.  Specify this option if you want the compiler to
! search directory <samp><var>dirname</var>/include</samp> for locally installed
! header files <em>instead</em> of <samp>/usr/local/include</samp>.
! </p>
! <p>You should specify <samp>--with-local-prefix</samp> <strong>only</strong> if your
! site has a different convention (not <samp>/usr/local</samp>) for where to put
  site-specific files.
! </p>
! <p>The default value for <samp>--with-local-prefix</samp> is <samp>/usr/local</samp>
! regardless of the value of <samp>--prefix</samp>.  Specifying
! <samp>--prefix</samp> has no effect on which directory GCC searches for
  local header files.  This may seem counterintuitive, but actually it is
  logical.
! </p>
! <p>The purpose of <samp>--prefix</samp> is to specify where to <em>install
! GCC</em>.  The local header files in <samp>/usr/local/include</samp>&mdash;if you put
  any in that directory&mdash;are not part of GCC.  They are part of other
  programs&mdash;perhaps many others.  (GCC installs its own header files in
! another directory which is based on the <samp>--prefix</samp> value.)
! </p>
! <p>Both the local-prefix include directory and the GCC-prefix include
! directory are part of GCC&rsquo;s &ldquo;system include&rdquo; directories.  Although these
  two directories are not fixed, they need to be searched in the proper
  order for the correct processing of the include_next directive.  The
  local-prefix include directory is searched before the GCC-prefix
  include directory.  Another characteristic of system include directories
  is that pedantic warnings are turned off for headers in these directories.
! </p>
! <p>Some autoconf macros add <samp>-I <var>directory</var></samp> options to the
  compiler command line, to ensure that directories containing installed
! packages&rsquo; headers are searched.  When <var>directory</var> is one of GCC&rsquo;s
  system include directories, GCC will ignore the option so that system
  directories continue to be processed in the correct order.  This
  may result in a search order different from what was specified but the
  directory will still be searched.
! </p>
! <p>GCC automatically searches for ordinary libraries using
! <code>GCC_EXEC_PREFIX</code>.  Thus, when the same installation prefix is
  used for both GCC and packages, GCC will automatically search for
  both headers and libraries.  This provides a configuration that is
  easy to use.  GCC behaves in a manner similar to that when it is
! installed as a system compiler in <samp>/usr</samp>.
! </p>
! <p>Sites that need to install multiple versions of GCC may not want to
  use the above simple configuration.  It is possible to use the
! <samp>--program-prefix</samp>, <samp>--program-suffix</samp> and
! <samp>--program-transform-name</samp> options to install multiple versions
  into a single directory, but it may be simpler to use different prefixes
! and the <samp>--with-local-prefix</samp> option to specify the location of the
  site-specific files for each version.  It will then be necessary for
  users to specify explicitly the location of local site libraries
! (e.g., with <code>LIBRARY_PATH</code>).
! </p>
! <p>The same value can be used for both <samp>--with-local-prefix</samp> and
! <samp>--prefix</samp> provided it is not <samp>/usr</samp>.  This can be used
! to avoid the default search of <samp>/usr/local/include</samp>.
! </p>
! <p><strong>Do not</strong> specify <samp>/usr</samp> as the <samp>--with-local-prefix</samp>!
! The directory you use for <samp>--with-local-prefix</samp> <strong>must not</strong>
! contain any of the system&rsquo;s standard header files.  If it did contain
  them, certain programs would be miscompiled (including GNU Emacs, on
  certain targets), because this would override and nullify the header
! file corrections made by the <code>fixincludes</code> script.
! </p>
! <p>Indications are that people who use this option use it based on mistaken
  ideas of what it is for.  People use it as if it specified where to
  install part of GCC.  Perhaps they make this assumption because
  installing GCC creates the directory.
! </p>
! </dd>
! <dt><code>--with-native-system-header-dir=<var>dirname</var></code></dt>
! <dd><p>Specifies that <var>dirname</var> is the directory that contains native system
! header files, rather than <samp>/usr/include</samp>.  This option is most useful
  if you are creating a compiler that should be isolated from the system
  as much as possible.  It is most commonly used with the
! <samp>--with-sysroot</samp> option and will cause GCC to search
  <var>dirname</var> inside the system root specified by that option.
! </p>
! </dd>
! <dt><code>--enable-shared[=<var>package</var>[,&hellip;]]</code></dt>
! <dd><p>Build shared versions of libraries, if shared libraries are supported on
  the target platform.  Unlike GCC 2.95.x and earlier, shared libraries
  are enabled by default on all platforms that support shared libraries.
! </p>
! <p>If a list of packages is given as an argument, build shared libraries
  only for the listed packages.  For other packages, only static libraries
  will be built.  Package names currently recognized in the GCC tree are
! &lsquo;<samp>libgcc</samp>&rsquo; (also known as &lsquo;<samp>gcc</samp>&rsquo;), &lsquo;<samp>libstdc++</samp>&rsquo; (not
! &lsquo;<samp>libstdc++-v3</samp>&rsquo;), &lsquo;<samp>libffi</samp>&rsquo;, &lsquo;<samp>zlib</samp>&rsquo;, &lsquo;<samp>boehm-gc</samp>&rsquo;,
! &lsquo;<samp>ada</samp>&rsquo;, &lsquo;<samp>libada</samp>&rsquo;, &lsquo;<samp>libjava</samp>&rsquo;, &lsquo;<samp>libgo</samp>&rsquo;, and &lsquo;<samp>libobjc</samp>&rsquo;.
! Note &lsquo;<samp>libiberty</samp>&rsquo; does not support shared libraries at all.
! </p>
! <p>Use <samp>--disable-shared</samp> to build only static libraries.  Note that
! <samp>--disable-shared</samp> does not accept a list of package names as
! argument, only <samp>--enable-shared</samp> does.
! </p>
! <p>Contrast with <samp>--enable-host-shared</samp>, which affects <em>host</em>
  code.
! </p>
! </dd>
! <dt><code>--enable-host-shared</code></dt>
! <dd><p>Specify that the <em>host</em> code should be built into position-independent
  machine code (with -fPIC), allowing it to be used within shared libraries,
  but yielding a slightly slower compiler.
! </p>
! <p>This option is required when building the libgccjit.so library.
! </p>
! <p>Contrast with <samp>--enable-shared</samp>, which affects <em>target</em>
  libraries.
! </p>
! </dd>
! <dt><code><a name="with_002dgnu_002das"></a>--with-gnu-as</code></dt>
! <dd><p>Specify that the compiler should assume that the
  assembler it finds is the GNU assembler.  However, this does not modify
  the rules to find an assembler and will result in confusion if the
  assembler found is not actually the GNU assembler.  (Confusion may also
  result if the compiler finds the GNU assembler but has not been
! configured with <samp>--with-gnu-as</samp>.)  If you have more than one
  assembler installed on your system, you may want to use this option in
! connection with <samp>--with-as=<var>pathname</var></samp> or
! <samp>--with-build-time-tools=<var>pathname</var></samp>.
! </p>
! <p>The following systems are the only ones where it makes a difference
  whether you use the GNU assembler.  On any other system,
! <samp>--with-gnu-as</samp> has no effect.
! </p>
! <ul>
! <li> &lsquo;<samp>hppa1.0-<var>any</var>-<var>any</var></samp>&rsquo;
! </li><li> &lsquo;<samp>hppa1.1-<var>any</var>-<var>any</var></samp>&rsquo;
! </li><li> &lsquo;<samp>sparc-sun-solaris2.<var>any</var></samp>&rsquo;
! </li><li> &lsquo;<samp>sparc64-<var>any</var>-solaris2.<var>any</var></samp>&rsquo;
! </li></ul>
  
! </dd>
! <dt><code><a name="with_002das"></a>--with-as=<var>pathname</var></code></dt>
! <dd><p>Specify that the compiler should use the assembler pointed to by
  <var>pathname</var>, rather than the one found by the standard rules to find
  an assembler, which are:
! </p><ul>
! <li> Unless GCC is being built with a cross compiler, check the
! <samp><var>libexec</var>/gcc/<var>target</var>/<var>version</var></samp> directory.
! <var>libexec</var> defaults to <samp><var>exec-prefix</var>/libexec</samp>;
  <var>exec-prefix</var> defaults to <var>prefix</var>, which
! defaults to <samp>/usr/local</samp> unless overridden by the
! <samp>--prefix=<var>pathname</var></samp> switch described above.  <var>target</var>
! is the target system triple, such as &lsquo;<samp>sparc-sun-solaris2.7</samp>&rsquo;, and
  <var>version</var> denotes the GCC version, such as 3.0.
  
! </li><li> If the target system is the same that you are building on, check
! operating system specific directories (e.g. <samp>/usr/ccs/bin</samp> on
  Sun Solaris 2).
  
! </li><li> Check in the <code>PATH</code> for a tool whose name is prefixed by the
  target system triple.
  
! </li><li> Check in the <code>PATH</code> for a tool whose name is not prefixed by the
  target system triple, if the host and target system triple are
  the same (in other words, we use a host tool if it can be used for
! the target as well).
! </li></ul>
  
! <p>You may want to use <samp>--with-as</samp> if no assembler
  is installed in the directories listed above, or if you have multiple
  assemblers installed and want to choose one that is not found by the
  above rules.
! </p>
! </dd>
! <dt><code><a name="with_002dgnu_002dld"></a>--with-gnu-ld</code></dt>
! <dd><p>Same as <a href="#with-gnu-as"><samp>--with-gnu-as</samp></a>
  but for the linker.
! </p>
! </dd>
! <dt><code>--with-ld=<var>pathname</var></code></dt>
! <dd><p>Same as <a href="#with-as"><samp>--with-as</samp></a>
  but for the linker.
! </p>
! </dd>
! <dt><code>--with-stabs</code></dt>
! <dd><p>Specify that stabs debugging
  information should be used instead of whatever format the host normally
  uses.  Normally GCC uses the same debug format as the host system.
! </p>
! <p>On MIPS based systems and on Alphas, you must specify whether you want
  GCC to create the normal ECOFF debugging format, or to use BSD-style
  stabs passed through the ECOFF symbol table.  The normal ECOFF debug
  format cannot fully handle languages other than C.  BSD stabs format can
  handle other languages, but it only works with the GNU debugger GDB.
! </p>
! <p>Normally, GCC uses the ECOFF debugging format by default; if you
! prefer BSD stabs, specify <samp>--with-stabs</samp> when you configure GCC.
! </p>
! <p>No matter which default you choose when you configure GCC, the user
! can use the <samp>-gcoff</samp> and <samp>-gstabs+</samp> options to specify explicitly
  the debug format for a particular compilation.
! </p>
! <p><samp>--with-stabs</samp> is meaningful on the ISC system on the 386, also, if
! <samp>--with-gas</samp> is used.  It selects use of stabs debugging
  information embedded in COFF output.  This kind of debugging information
  supports C++ well; ordinary COFF debugging information does not.
! </p>
! <p><samp>--with-stabs</samp> is also meaningful on 386 systems running SVR4.  It
  selects use of stabs debugging information embedded in ELF output.  The
  C++ compiler currently (2.6.0) does not support the DWARF debugging
  information normally used on 386 SVR4 platforms; stabs provide a
  workable alternative.  This requires gas and gdb, as the normal SVR4
  tools can not generate or interpret stabs.
! </p>
! </dd>
! <dt><code>--with-tls=<var>dialect</var></code></dt>
! <dd><p>Specify the default TLS dialect, for systems were there is a choice.
  For ARM targets, possible values for <var>dialect</var> are <code>gnu</code> or
  <code>gnu2</code>, which select between the original GNU dialect and the GNU TLS
  descriptor-based dialect.
! </p>
! </dd>
! <dt><code>--enable-multiarch</code></dt>
! <dd><p>Specify whether to enable or disable multiarch support.  The default is
  to check for glibc start files in a multiarch location, and enable it
  if the files are found.  The auto detection is enabled for native builds,
! and for cross builds configured with <samp>--with-sysroot</samp>, and without
! <samp>--with-native-system-header-dir</samp>.
  More documentation about multiarch can be found at
  <a href="https://wiki.debian.org/Multiarch">https://wiki.debian.org/Multiarch</a>.
! </p>
! </dd>
! <dt><code>--enable-sjlj-exceptions</code></dt>
! <dd><p>Force use of the <code>setjmp</code>/<code>longjmp</code>-based scheme for exceptions.
! &lsquo;<samp>configure</samp>&rsquo; ordinarily picks the correct value based on the platform.
  Only use this option if you are sure you need a different setting.
! </p>
! </dd>
! <dt><code>--enable-vtable-verify</code></dt>
! <dd><p>Specify whether to enable or disable the vtable verification feature.
  Enabling this feature causes libstdc++ to be built with its virtual calls
  in verifiable mode.  This means that, when linked with libvtv, every
  virtual call in libstdc++ will verify the vtable pointer through which the
  call will be made before actually making the call.  If not linked with libvtv,
! the verifier will call stub functions (in libstdc++ itself) and do nothing.
  If vtable verification is disabled, then libstdc++ is not built with its
  virtual calls in verifiable mode at all.  However the libvtv library will
! still be built (see <samp>--disable-libvtv</samp> to turn off building libvtv).
! <samp>--disable-vtable-verify</samp> is the default.
! </p>
! </dd>
! <dt><code>--disable-multilib</code></dt>
! <dd><p>Specify that multiple target
  libraries to support different target variants, calling
  conventions, etc. should not be built.  The default is to build a
  predefined set of them.
! </p>
! <p>Some targets provide finer-grained control over which multilibs are built
! (e.g., <samp>--disable-softfloat</samp>):
! </p><dl compact="compact">
! <dt><code>arm-*-*</code></dt>
! <dd><p>fpu, 26bit, underscore, interwork, biendian, nofmult.
! </p>
! </dd>
! <dt><code>m68*-*-*</code></dt>
! <dd><p>softfloat, m68881, m68000, m68020.
! </p>
! </dd>
! <dt><code>mips*-*-*</code></dt>
! <dd><p>single-float, biendian, softfloat.
! </p>
! </dd>
! <dt><code>powerpc*-*-*, rs6000*-*-*</code></dt>
! <dd><p>aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian,
  sysv, aix.
+ </p>
+ </dd>
+ </dl>
  
! </dd>
! <dt><code>--with-multilib-list=<var>list</var></code></dt>
! <dt><code>--without-multilib-list</code></dt>
! <dd><p>Specify what multilibs to build.
  Currently only implemented for arm*-*-*, sh*-*-* and x86-64-*-linux*.
! </p>
! <dl compact="compact">
! <dt><code>arm*-*-*</code></dt>
! <dd><p><var>list</var> is either <code>default</code> or <code>aprofile</code>.  Specifying
  <code>default</code> is equivalent to omitting this option while specifying
  <code>aprofile</code> builds multilibs for each combination of ISA (<code>-marm</code> or
  <code>-mthumb</code>), architecture (<code>-march=armv7-a</code>, <code>-march=armv7ve</code>,
*************** or <code>-march=armv8-a</code>), FPU ava
*** 497,1537 ****
  <code>-mfpu=neon</code>, <code>-mfpu=vfpv4-d16</code>, <code>-mfpu=neon-vfpv4</code> or
  <code>-mfpu=neon-fp-armv8</code> depending on architecture) and floating-point ABI
  (<code>-mfloat-abi=softfp</code> or <code>-mfloat-abi=hard</code>).
! 
!           <br><dt><code>sh*-*-*</code><dd><var>list</var> is a comma separated list of CPU names.  These must be of the
  form <code>sh*</code> or <code>m*</code> (in which case they match the compiler option
  for that processor).  The list should not contain any endian options -
! these are handled by <samp><span class="option">--with-endian</span></samp>.
! 
!           <p>If <var>list</var> is empty, then there will be no multilibs for extra
  processors.  The multilib for the secondary endian remains enabled.
! 
!           <p>As a special case, if an entry in the list starts with a <code>!</code>
! (exclamation point), then it is added to the list of excluded multilibs. 
! Entries of this sort should be compatible with &lsquo;<samp><span class="samp">MULTILIB_EXCLUDES</span></samp>&rsquo;
  (once the leading <code>!</code> has been stripped).
! 
!           <p>If <samp><span class="option">--with-multilib-list</span></samp> is not given, then a default set of
! multilibs is selected based on the value of <samp><span class="option">--target</span></samp>.  This is
  usually the complete set of libraries, but some targets imply a more
  specialized subset.
! 
!           <p>Example 1: to configure a compiler for SH4A only, but supporting both
  endians, with little endian being the default:
!           <pre class="smallexample">               --with-cpu=sh4a --with-endian=little,big --with-multilib-list=
! </pre>
!           <p>Example 2: to configure a compiler for both SH4A and SH4AL-DSP, but with
  only little endian SH4AL:
!           <pre class="smallexample">               --with-cpu=sh4a --with-endian=little,big \
!                --with-multilib-list=sh4al,!mb/m4al
! </pre>
!           <br><dt><code>x86-64-*-linux*</code><dd><var>list</var> is a comma separated list of <code>m32</code>, <code>m64</code> and
  <code>mx32</code> to enable 32-bit, 64-bit and x32 run-time libraries,
  respectively.  If <var>list</var> is empty, then there will be no multilibs
  and only the default run-time library will be enabled.
! 
!           <p>If <samp><span class="option">--with-multilib-list</span></samp> is not given, then only 32-bit and
! 64-bit run-time libraries will be enabled. 
  </dl>
  
!      <br><dt><code>--with-endian=</code><var>endians</var><dd>Specify what endians to use. 
  Currently only implemented for sh*-*-*.
! 
!      <p><var>endians</var> may be one of the following:
!           <dl>
! <dt><code>big</code><dd>Use big endian exclusively. 
! <br><dt><code>little</code><dd>Use little endian exclusively. 
! <br><dt><code>big,little</code><dd>Use big endian by default.  Provide a multilib for little endian. 
! <br><dt><code>little,big</code><dd>Use little endian by default.  Provide a multilib for big endian. 
  </dl>
  
!      <br><dt><code>--enable-threads</code><dd>Specify that the target
  supports threads.  This affects the Objective-C compiler and runtime
! library, and exception handling for other languages like C++ and Java. 
  On some systems, this is the default.
! 
!      <p>In general, the best (and, in many cases, the only known) threading
  model available will be configured for use.  Beware that on some
  systems, GCC has not been taught what threading models are generally
! available for the system.  In this case, <samp><span class="option">--enable-threads</span></samp> is an
! alias for <samp><span class="option">--enable-threads=single</span></samp>.
! 
!      <br><dt><code>--disable-threads</code><dd>Specify that threading support should be disabled for the system. 
! This is an alias for <samp><span class="option">--enable-threads=single</span></samp>.
! 
!      <br><dt><code>--enable-threads=</code><var>lib</var><dd>Specify that
  <var>lib</var> is the thread support library.  This affects the Objective-C
  compiler and runtime library, and exception handling for other languages
  like C++ and Java.  The possibilities for <var>lib</var> are:
! 
!           <dl>
! <dt><code>aix</code><dd>AIX thread support. 
! <br><dt><code>dce</code><dd>DCE thread support. 
! <br><dt><code>lynx</code><dd>LynxOS thread support. 
! <br><dt><code>mipssde</code><dd>MIPS SDE thread support. 
! <br><dt><code>no</code><dd>This is an alias for &lsquo;<samp><span class="samp">single</span></samp>&rsquo;. 
! <br><dt><code>posix</code><dd>Generic POSIX/Unix98 thread support. 
! <br><dt><code>rtems</code><dd>RTEMS thread support. 
! <br><dt><code>single</code><dd>Disable thread support, should work for all platforms. 
! <br><dt><code>tpf</code><dd>TPF thread support. 
! <br><dt><code>vxworks</code><dd>VxWorks thread support. 
! <br><dt><code>win32</code><dd>Microsoft Win32 API thread support. 
  </dl>
  
!      <br><dt><code>--enable-tls</code><dd>Specify that the target supports TLS (Thread Local Storage).  Usually
  configure can correctly determine if TLS is supported.  In cases where
  it guesses incorrectly, TLS can be explicitly enabled or disabled with
! <samp><span class="option">--enable-tls</span></samp> or <samp><span class="option">--disable-tls</span></samp>.  This can happen if
  the assembler supports TLS but the C library does not, or if the
  assumptions made by the configure test are incorrect.
! 
!      <br><dt><code>--disable-tls</code><dd>Specify that the target does not support TLS. 
! This is an alias for <samp><span class="option">--enable-tls=no</span></samp>.
! 
!      <br><dt><code>--with-cpu=</code><var>cpu</var><dt><code>--with-cpu-32=</code><var>cpu</var><dt><code>--with-cpu-64=</code><var>cpu</var><dd>Specify which cpu variant the compiler should generate code for by default. 
! <var>cpu</var> will be used as the default value of the <samp><span class="option">-mcpu=</span></samp> switch. 
  This option is only supported on some targets, including ARC, ARM, i386, M68k,
! PowerPC, and SPARC.  It is mandatory for ARC.  The <samp><span class="option">--with-cpu-32</span></samp> and
! <samp><span class="option">--with-cpu-64</span></samp> options specify separate default CPUs for
  32-bit and 64-bit modes; these options are only supported for i386,
  x86-64, PowerPC, and SPARC.
! 
!      <br><dt><code>--with-schedule=</code><var>cpu</var><dt><code>--with-arch=</code><var>cpu</var><dt><code>--with-arch-32=</code><var>cpu</var><dt><code>--with-arch-64=</code><var>cpu</var><dt><code>--with-tune=</code><var>cpu</var><dt><code>--with-tune-32=</code><var>cpu</var><dt><code>--with-tune-64=</code><var>cpu</var><dt><code>--with-abi=</code><var>abi</var><dt><code>--with-fpu=</code><var>type</var><dt><code>--with-float=</code><var>type</var><dd>These configure options provide default values for the <samp><span class="option">-mschedule=</span></samp>,
! <samp><span class="option">-march=</span></samp>, <samp><span class="option">-mtune=</span></samp>, <samp><span class="option">-mabi=</span></samp>, and <samp><span class="option">-mfpu=</span></samp>
! options and for <samp><span class="option">-mhard-float</span></samp> or <samp><span class="option">-msoft-float</span></samp>.  As with
! <samp><span class="option">--with-cpu</span></samp>, which switches will be accepted and acceptable values
  of the arguments depend on the target.
! 
!      <br><dt><code>--with-mode=</code><var>mode</var><dd>Specify if the compiler should default to <samp><span class="option">-marm</span></samp> or <samp><span class="option">-mthumb</span></samp>. 
  This option is only supported on ARM targets.
! 
!      <br><dt><code>--with-stack-offset=</code><var>num</var><dd>This option sets the default for the -mstack-offset=<var>num</var> option,
  and will thus generally also control the setting of this option for
  libraries.  This option is only supported on Epiphany targets.
! 
!      <br><dt><code>--with-fpmath=</code><var>isa</var><dd>This options sets <samp><span class="option">-mfpmath=sse</span></samp> by default and specifies the default
! ISA for floating-point arithmetics.  You can select either &lsquo;<samp><span class="samp">sse</span></samp>&rsquo; which
! enables <samp><span class="option">-msse2</span></samp> or &lsquo;<samp><span class="samp">avx</span></samp>&rsquo; which enables <samp><span class="option">-mavx</span></samp> by default. 
  This option is only supported on i386 and x86-64 targets.
! 
!      <br><dt><code>--with-fp-32=</code><var>mode</var><dd>On MIPS targets, set the default value for the <samp><span class="option">-mfp</span></samp> option when using
  the o32 ABI.  The possibilities for <var>mode</var> are:
!           <dl>
! <dt><code>32</code><dd>Use the o32 FP32 ABI extension, as with the <samp><span class="option">-mfp32</span></samp> command-line
! option. 
! <br><dt><code>xx</code><dd>Use the o32 FPXX ABI extension, as with the <samp><span class="option">-mfpxx</span></samp> command-line
! option. 
! <br><dt><code>64</code><dd>Use the o32 FP64 ABI extension, as with the <samp><span class="option">-mfp64</span></samp> command-line
! option. 
  </dl>
!      In the absence of this configuration option the default is to use the o32
  FP32 ABI extension.
! 
!      <br><dt><code>--with-odd-spreg-32</code><dd>On MIPS targets, set the <samp><span class="option">-modd-spreg</span></samp> option by default when using
  the o32 ABI.
! 
!      <br><dt><code>--without-odd-spreg-32</code><dd>On MIPS targets, set the <samp><span class="option">-mno-odd-spreg</span></samp> option by default when using
  the o32 ABI.  This is normally used in conjunction with
! <samp><span class="option">--with-fp-32=64</span></samp> in order to target the o32 FP64A ABI extension.
! 
!      <br><dt><code>--with-nan=</code><var>encoding</var><dd>On MIPS targets, set the default encoding convention to use for the
  special not-a-number (NaN) IEEE 754 floating-point data.  The
  possibilities for <var>encoding</var> are:
!           <dl>
! <dt><code>legacy</code><dd>Use the legacy encoding, as with the <samp><span class="option">-mnan=legacy</span></samp> command-line
! option. 
! <br><dt><code>2008</code><dd>Use the 754-2008 encoding, as with the <samp><span class="option">-mnan=2008</span></samp> command-line
! option. 
  </dl>
!      To use this configuration option you must have an assembler version
! installed that supports the <samp><span class="option">-mnan=</span></samp> command-line option too. 
  In the absence of this configuration option the default convention is
! the legacy encoding, as when neither of the <samp><span class="option">-mnan=2008</span></samp> and
! <samp><span class="option">-mnan=legacy</span></samp> command-line options has been used.
! 
!      <br><dt><code>--with-divide=</code><var>type</var><dd>Specify how the compiler should generate code for checking for
! division by zero.  This option is only supported on the MIPS target. 
  The possibilities for <var>type</var> are:
!           <dl>
! <dt><code>traps</code><dd>Division by zero checks use conditional traps (this is the default on
! systems that support conditional traps). 
! <br><dt><code>breaks</code><dd>Division by zero checks use the break instruction. 
  </dl>
  
!      <!-- If you make -with-llsc the default for additional targets, -->
!      <!-- update the -with-llsc description in the MIPS section below. -->
!      <br><dt><code>--with-llsc</code><dd>On MIPS targets, make <samp><span class="option">-mllsc</span></samp> the default when no
! <samp><span class="option">-mno-llsc</span></samp> option is passed.  This is the default for
  Linux-based targets, as the kernel will emulate them if the ISA does
  not provide them.
! 
!      <br><dt><code>--without-llsc</code><dd>On MIPS targets, make <samp><span class="option">-mno-llsc</span></samp> the default when no
! <samp><span class="option">-mllsc</span></samp> option is passed.
! 
!      <br><dt><code>--with-synci</code><dd>On MIPS targets, make <samp><span class="option">-msynci</span></samp> the default when no
! <samp><span class="option">-mno-synci</span></samp> option is passed.
! 
!      <br><dt><code>--without-synci</code><dd>On MIPS targets, make <samp><span class="option">-mno-synci</span></samp> the default when no
! <samp><span class="option">-msynci</span></samp> option is passed.  This is the default.
! 
!      <br><dt><code>--with-mips-plt</code><dd>On MIPS targets, make use of copy relocations and PLTs. 
  These features are extensions to the traditional
  SVR4-based MIPS ABIs and require support from GNU binutils
  and the runtime C library.
! 
!      <br><dt><code>--enable-__cxa_atexit</code><dd>Define if you want to use __cxa_atexit, rather than atexit, to
! register C++ destructors for local statics and global objects. 
  This is essential for fully standards-compliant handling of
  destructors, but requires __cxa_atexit in libc.  This option is currently
  only available on systems with GNU libc.  When enabled, this will cause
! <samp><span class="option">-fuse-cxa-atexit</span></samp> to be passed by default.
! 
!      <br><dt><code>--enable-gnu-indirect-function</code><dd>Define if you want to enable the <code>ifunc</code> attribute.  This option is
  currently only available on systems with GNU libc on certain targets.
! 
!      <br><dt><code>--enable-target-optspace</code><dd>Specify that target
! libraries should be optimized for code space instead of code speed. 
  This is the default for the m32r platform.
! 
!      <br><dt><code>--with-cpp-install-dir=</code><var>dirname</var><dd>Specify that the user visible <samp><span class="command">cpp</span></samp> program should be installed
! in <samp><var>prefix</var><span class="file">/</span><var>dirname</var><span class="file">/cpp</span></samp>, in addition to <var>bindir</var>.
! 
!      <br><dt><code>--enable-comdat</code><dd>Enable COMDAT group support.  This is primarily used to override the
  automatically detected value.
! 
!      <br><dt><code>--enable-initfini-array</code><dd>Force the use of sections <code>.init_array</code> and <code>.fini_array</code>
  (instead of <code>.init</code> and <code>.fini</code>) for constructors and
! destructors.  Option <samp><span class="option">--disable-initfini-array</span></samp> has the
  opposite effect.  If neither option is specified, the configure script
  will try to guess whether the <code>.init_array</code> and
  <code>.fini_array</code> sections are supported and, if they are, use them.
! 
!      <br><dt><code>--enable-link-mutex</code><dd>When building GCC, use a mutex to avoid linking the compilers for
  multiple languages at the same time, to avoid thrashing on build
  systems with limited free memory.  The default is not to use such a mutex.
! 
!      <br><dt><code>--enable-maintainer-mode</code><dd>The build rules that regenerate the Autoconf and Automake output files as
! well as the GCC master message catalog <samp><span class="file">gcc.pot</span></samp> are normally
  disabled.  This is because it can only be rebuilt if the complete source
  tree is present.  If you have changed the sources and want to rebuild the
! catalog, configuring with <samp><span class="option">--enable-maintainer-mode</span></samp> will enable
  this.  Note that you need a recent version of the <code>gettext</code> tools
  to do so.
! 
!      <br><dt><code>--disable-bootstrap</code><dd>For a native build, the default configuration is to perform
! a 3-stage bootstrap of the compiler when &lsquo;<samp><span class="samp">make</span></samp>&rsquo; is invoked,
  testing that GCC can compile itself correctly.  If you want to disable
! this process, you can configure with <samp><span class="option">--disable-bootstrap</span></samp>.
! 
!      <br><dt><code>--enable-bootstrap</code><dd>In special cases, you may want to perform a 3-stage build
! even if the target and host triplets are different. 
  This is possible when the host can run code compiled for
! the target (e.g. host is i686-linux, target is i486-linux). 
  Starting from GCC 4.2, to do this you have to configure explicitly
! with <samp><span class="option">--enable-bootstrap</span></samp>.
! 
!      <br><dt><code>--enable-generated-files-in-srcdir</code><dd>Neither the .c and .h files that are generated from Bison and flex nor the
  info manuals and man pages that are built from the .texi files are present
  in the SVN development tree.  When building GCC from that development tree,
  or from one of our snapshots, those generated files are placed in your
  build directory, which allows for the source to be in a readonly
  directory.
! 
!      <p>If you configure with <samp><span class="option">--enable-generated-files-in-srcdir</span></samp> then those
  generated files will go into the source directory.  This is mainly intended
  for generating release or prerelease tarballs of the GCC sources, since it
  is not a requirement that the users of source releases to have flex, Bison,
  or makeinfo.
! 
!      <br><dt><code>--enable-version-specific-runtime-libs</code><dd>Specify
  that runtime libraries should be installed in the compiler specific
! subdirectory (<samp><var>libdir</var><span class="file">/gcc</span></samp>) rather than the usual places.  In
! addition, &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo;'s include files will be installed into
  <samp><var>libdir</var></samp> unless you overruled it by using
! <samp><span class="option">--with-gxx-include-dir=</span><var>dirname</var></samp>.  Using this option is
  particularly useful if you intend to use several versions of GCC in
! parallel.  This is currently supported by &lsquo;<samp><span class="samp">libgfortran</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">libjava</span></samp>&rsquo;, &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo;, and &lsquo;<samp><span class="samp">libobjc</span></samp>&rsquo;.
! 
!      <br><dt><code><a name="WithAixSoname"></a>--with-aix-soname=&lsquo;</code><samp><span class="samp">aix</span></samp><code>&rsquo;, &lsquo;</code><samp><span class="samp">svr4</span></samp><code>&rsquo; or &lsquo;</code><samp><span class="samp">both</span></samp><code>&rsquo;</code><dd>Traditional AIX shared library versioning (versioned <code>Shared Object</code>
  files as members of unversioned <code>Archive Library</code> files named
! &lsquo;<samp><span class="samp">lib.a</span></samp>&rsquo;) causes numerous headaches for package managers. However,
  <code>Import Files</code> as members of <code>Archive Library</code> files allow for
  <strong>filename-based versioning</strong> of shared libraries as seen on Linux/SVR4,
! where this is called the "SONAME". But as they prevent static linking,
  <code>Import Files</code> may be used with <code>Runtime Linking</code> only, where the
! linker does search for &lsquo;<samp><span class="samp">libNAME.so</span></samp>&rsquo; before &lsquo;<samp><span class="samp">libNAME.a</span></samp>&rsquo; library
! filenames with the &lsquo;<samp><span class="samp">-lNAME</span></samp>&rsquo; linker flag.
! 
!      <p><a name="AixLdCommand"></a>For detailed information please refer to the AIX
! <a href="http://www-01.ibm.com/support/knowledgecenter/search/%22the%20ld%20command%2C%20also%20called%20the%20linkage%20editor%20or%20binder%22">ld Command</a> reference.
! 
!      <p>As long as shared library creation is enabled, upon:
!           <dl>
! <dt><code>--with-aix-soname=aix</code><br><dt><code>--with-aix-soname=both</code><dd> A (traditional AIX) <code>Shared Archive Library</code> file is created:
!                <ul>
!   <li>using the &lsquo;<samp><span class="samp">libNAME.a</span></samp>&rsquo; filename scheme
!   <li>with the <code>Shared Object</code> file as archive member named
!   &lsquo;<samp><span class="samp">libNAME.so.V</span></samp>&rsquo; (except for &lsquo;<samp><span class="samp">libgcc_s</span></samp>&rsquo;, where the <code>Shared
!   Object</code> file is named &lsquo;<samp><span class="samp">shr.o</span></samp>&rsquo; for backwards compatibility), which
!                     <ul>
!    <li>is used for runtime loading from inside the &lsquo;<samp><span class="samp">libNAME.a</span></samp>&rsquo; file
!    <li>is used for dynamic loading via
!    <code>dlopen("libNAME.a(libNAME.so.V)", RTLD_MEMBER)</code>
!    <li>is used for shared linking
!    <li>is used for static linking, so no separate <code>Static Archive
     Library</code> file is needed
!   </ul>
!                 </ul>
!           <br><dt><code>--with-aix-soname=both</code><br><dt><code>--with-aix-soname=svr4</code><dd> A (second) <code>Shared Archive Library</code> file is created:
!                <ul>
!  <li>using the &lsquo;<samp><span class="samp">libNAME.so.V</span></samp>&rsquo; filename scheme
!  <li>with the <code>Shared Object</code> file as archive member named
!  &lsquo;<samp><span class="samp">shr.o</span></samp>&rsquo;, which
!                     <ul>
!    <li>is created with the <code>-G linker flag</code>
!    <li>has the <code>F_LOADONLY</code> flag set
!    <li>is used for runtime loading from inside the &lsquo;<samp><span class="samp">libNAME.so.V</span></samp>&rsquo; file
!    <li>is used for dynamic loading via <code>dlopen("libNAME.so.V(shr.o)",
     RTLD_MEMBER)</code>
!   </ul>
!                 <li>with the <code>Import File</code> as archive member named &lsquo;<samp><span class="samp">shr.imp</span></samp>&rsquo;,
   which
!                     <ul>
!    <li>refers to &lsquo;<samp><span class="samp">libNAME.so.V(shr.o)</span></samp>&rsquo; as the "SONAME", to be recorded
     in the <code>Loader Section</code> of subsequent binaries
!    <li>indicates whether &lsquo;<samp><span class="samp">libNAME.so.V(shr.o)</span></samp>&rsquo; is 32 or 64 bit
!    <li>lists all the public symbols exported by &lsquo;<samp><span class="samp">lib.so.V(shr.o)</span></samp>&rsquo;,
!    eventually decorated with the <code>&lsquo;</code><samp><span class="samp">weak</span></samp><code>&rsquo; Keyword</code>
!    <li>is necessary for shared linking against &lsquo;<samp><span class="samp">lib.so.V(shr.o)</span></samp>&rsquo;
!    </ul>
!                  </ul>
!             A symbolic link using the &lsquo;<samp><span class="samp">libNAME.so</span></samp>&rsquo; filename scheme is created:
!                <ul>
!   <li>pointing to the &lsquo;<samp><span class="samp">libNAME.so.V</span></samp>&rsquo; <code>Shared Archive Library</code> file
!   <li>to permit the <code>ld Command</code> to find &lsquo;<samp><span class="samp">lib.so.V(shr.imp)</span></samp>&rsquo; via
!   the &lsquo;<samp><span class="samp">-lNAME</span></samp>&rsquo; argument (requires <code>Runtime Linking</code> to be enabled)
!   <li>to permit dynamic loading of &lsquo;<samp><span class="samp">lib.so.V(shr.o)</span></samp>&rsquo; without the need
!   to specify the version number via <code>dlopen("libNAME.so(shr.o)",
    RTLD_MEMBER)</code>
!   </ul>
!           </dl>
  
!      <p>As long as static library creation is enabled, upon:
!           <dl>
! <dt><code>--with-aix-soname=svr4</code><dd> A <code>Static Archive Library</code> is created:
!                <ul>
!  <li>using the &lsquo;<samp><span class="samp">libNAME.a</span></samp>&rsquo; filename scheme
!  <li>with all the <code>Static Object</code> files as archive members, which
!                     <ul>
!    <li>are used for static linking
!   </ul>
!                 </ul>
!           </dl>
  
!      <p>While the aix-soname=&lsquo;<samp><span class="samp">svr4</span></samp>&rsquo; option does not create <code>Shared Object</code>
  files as members of unversioned <code>Archive Library</code> files any more, package
  managers still are responsible to
  <a href="./specific.html#TransferAixShobj">transfer</a> <code>Shared Object</code> files
  found as member of a previously installed unversioned <code>Archive Library</code>
  file into the newly installed <code>Archive Library</code> file with the same
  filename.
! 
!      <p><em>WARNING:</em> Creating <code>Shared Object</code> files with <code>Runtime Linking</code>
  enabled may bloat the TOC, eventually leading to <code>TOC overflow</code> errors,
! requiring the use of either the <samp><span class="option">-Wl,-bbigtoc</span></samp> linker flag (seen to
  break with the <code>GDB</code> debugger) or some of the TOC-related compiler flags,
  see &ldquo;RS/6000 and PowerPC Options&rdquo; in the main manual.
! 
!      <p><samp><span class="option">--with-aix-soname</span></samp> is currently supported by &lsquo;<samp><span class="samp">libgcc_s</span></samp>&rsquo; only, so
  this option is still experimental and not for normal use yet.
! 
!      <p>Default is the traditional behavior <samp><span class="option">--with-aix-soname=&lsquo;</span><samp><span class="samp">aix</span></samp><span class="option">&rsquo;</span></samp>.
! 
!      <br><dt><code>--enable-languages=</code><var>lang1</var><code>,</code><var>lang2</var><code>,...</code><dd>Specify that only a particular subset of compilers and
  their runtime libraries should be built.  For a list of valid values for
  <var>langN</var> you can issue the following command in the
! <samp><span class="file">gcc</span></samp> directory of your GCC source tree:<br>
!      <pre class="smallexample">          grep ^language= */config-lang.in
! </pre>
!      <p>Currently, you can use any of the following:
  <code>all</code>, <code>ada</code>, <code>c</code>, <code>c++</code>, <code>fortran</code>,
! <code>go</code>, <code>java</code>, <code>jit</code>, <code>lto</code>, <code>objc</code>, <code>obj-c++</code>. 
! Building the Ada compiler has special requirements, see below. 
  If you do not pass this flag, or specify the option <code>all</code>, then all
! default languages available in the <samp><span class="file">gcc</span></samp> sub-tree will be configured. 
  Ada, Go, Jit, and Objective-C++ are not default languages.  LTO is not a
! default language, but is built by default because <samp><span class="option">--enable-lto</span></samp> is
  enabled by default.  The other languages are default languages.
! 
!      <br><dt><code>--enable-stage1-languages=</code><var>lang1</var><code>,</code><var>lang2</var><code>,...</code><dd>Specify that a particular subset of compilers and their runtime
  libraries should be built with the system C compiler during stage 1 of
  the bootstrap process, rather than only in later stages with the
  bootstrapped C compiler.  The list of valid values is the same as for
! <samp><span class="option">--enable-languages</span></samp>, and the option <code>all</code> will select all
! of the languages enabled by <samp><span class="option">--enable-languages</span></samp>.  This option is
  primarily useful for GCC development; for instance, when a development
  version of the compiler cannot bootstrap due to compiler bugs, or when
  one is debugging front ends other than the C front end.  When this
  option is used, one can then build the target libraries for the
! specified languages with the stage-1 compiler by using <samp><span class="command">make
! stage1-bubble all-target</span></samp>, or run the testsuite on the stage-1 compiler
! for the specified languages using <samp><span class="command">make stage1-start check-gcc</span></samp>.
! 
!      <br><dt><code>--disable-libada</code><dd>Specify that the run-time libraries and tools used by GNAT should not
  be built.  This can be useful for debugging, or for compatibility with
  previous Ada build procedures, when it was required to explicitly
! do a &lsquo;<samp><span class="samp">make -C gcc gnatlib_and_tools</span></samp>&rsquo;.
! 
!      <br><dt><code>--disable-libsanitizer</code><dd>Specify that the run-time libraries for the various sanitizers should
  not be built.
! 
!      <br><dt><code>--disable-libssp</code><dd>Specify that the run-time libraries for stack smashing protection
  should not be built.
! 
!      <br><dt><code>--disable-libquadmath</code><dd>Specify that the GCC quad-precision math library should not be built. 
  On some systems, the library is required to be linkable when building
! the Fortran front end, unless <samp><span class="option">--disable-libquadmath-support</span></samp>
  is used.
! 
!      <br><dt><code>--disable-libquadmath-support</code><dd>Specify that the Fortran front end and <code>libgfortran</code> do not add
  support for <code>libquadmath</code> on systems supporting it.
! 
!      <br><dt><code>--disable-libgomp</code><dd>Specify that the GNU Offloading and Multi Processing Runtime Library
  should not be built.
! 
!      <br><dt><code>--disable-libvtv</code><dd>Specify that the run-time libraries used by vtable verification
  should not be built.
! 
!      <br><dt><code>--with-dwarf2</code><dd>Specify that the compiler should
  use DWARF 2 debugging information as the default.
! 
!      <br><dt><code>--with-advance-toolchain=</code><var>at</var><dd>On 64-bit PowerPC Linux systems, configure the compiler to use the
  header files, library files, and the dynamic linker from the Advance
  Toolchain release <var>at</var> instead of the default versions that are
  provided by the Linux distribution.  In general, this option is
  intended for the developers of GCC, and it is not intended for general
  use.
! 
!      <br><dt><code>--enable-targets=all</code><dt><code>--enable-targets=</code><var>target_list</var><dd>Some GCC targets, e.g. powerpc64-linux, build bi-arch compilers. 
  These are compilers that are able to generate either 64-bit or 32-bit
! code.  Typically, the corresponding 32-bit target, e.g. 
  powerpc-linux for powerpc64-linux, only generates 32-bit code.  This
  option enables the 32-bit target to be a bi-arch compiler, which is
  useful when you want a bi-arch compiler that defaults to 32-bit, and
! you are building a bi-arch or multi-arch binutils in a combined tree. 
  On mips-linux, this will build a tri-arch compiler (ABI o32/n32/64),
! defaulted to o32. 
  Currently, this option only affects sparc-linux, powerpc-linux, x86-linux,
  mips-linux and s390-linux.
! 
!      <br><dt><code>--enable-default-pie</code><dd>Turn on <samp><span class="option">-fPIE</span></samp> and <samp><span class="option">-pie</span></samp> by default.
! 
!      <br><dt><code>--enable-secureplt</code><dd>This option enables <samp><span class="option">-msecure-plt</span></samp> by default for powerpc-linux. 
  See &ldquo;RS/6000 and PowerPC Options&rdquo; in the main manual
! 
!      <br><dt><code>--enable-default-ssp</code><dd>Turn on <samp><span class="option">-fstack-protector-strong</span></samp> by default.
! 
!      <br><dt><code>--enable-cld</code><dd>This option enables <samp><span class="option">-mcld</span></samp> by default for 32-bit x86 targets. 
  See &ldquo;i386 and x86-64 Options&rdquo; in the main manual
! 
!      <br><dt><code>--enable-win32-registry</code><dt><code>--enable-win32-registry=</code><var>key</var><dt><code>--disable-win32-registry</code><dd>The <samp><span class="option">--enable-win32-registry</span></samp> option enables Microsoft Windows-hosted GCC
  to look up installations paths in the registry using the following key:
  
!      <pre class="smallexample">          <code>HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\</code><var>key</var>
! </pre>
!      <p><var>key</var> defaults to GCC version number, and can be overridden by the
! <samp><span class="option">--enable-win32-registry=</span><var>key</var></samp> option.  Vendors and distributors
  who use custom installers are encouraged to provide a different key,
  perhaps one comprised of vendor name and GCC version number, to
  avoid conflict with existing installations.  This feature is enabled
! by default, and can be disabled by <samp><span class="option">--disable-win32-registry</span></samp>
  option.  This option has no effect on the other hosts.
! 
!      <br><dt><code>--nfp</code><dd>Specify that the machine does not have a floating point unit.  This
! option only applies to &lsquo;<samp><span class="samp">m68k-sun-sunos</span><var>n</var></samp>&rsquo;.  On any other
! system, <samp><span class="option">--nfp</span></samp> has no effect.
! 
!      <br><dt><code>--enable-werror</code><dt><code>--disable-werror</code><dt><code>--enable-werror=yes</code><dt><code>--enable-werror=no</code><dd>When you specify this option, it controls whether certain files in the
! compiler are built with <samp><span class="option">-Werror</span></samp> in bootstrap stage2 and later. 
! If you don't specify it, <samp><span class="option">-Werror</span></samp> is turned on for the main
  development trunk.  However it defaults to off for release branches and
! final releases.  The specific files which get <samp><span class="option">-Werror</span></samp> are
  controlled by the Makefiles.
! 
!      <br><dt><code>--enable-checking</code><dt><code>--enable-checking=</code><var>list</var><dd>When you specify this option, the compiler is built to perform internal
  consistency checks of the requested complexity.  This does not change the
  generated code, but adds error checking within the compiler.  This will
  slow down the compiler and may only work properly if you are building
! the compiler with GCC.  This is &lsquo;<samp><span class="samp">yes</span></samp>&rsquo; by default when building
! from SVN or snapshots, but &lsquo;<samp><span class="samp">release</span></samp>&rsquo; for releases.  The default
! for building the stage1 compiler is &lsquo;<samp><span class="samp">yes</span></samp>&rsquo;.  More control
  over the checks may be had by specifying <var>list</var>.  The categories of
! checks available are &lsquo;<samp><span class="samp">yes</span></samp>&rsquo; (most common checks
! &lsquo;<samp><span class="samp">assert,misc,tree,gc,rtlflag,runtime</span></samp>&rsquo;), &lsquo;<samp><span class="samp">no</span></samp>&rsquo; (no checks at
! all), &lsquo;<samp><span class="samp">all</span></samp>&rsquo; (all but &lsquo;<samp><span class="samp">valgrind</span></samp>&rsquo;), &lsquo;<samp><span class="samp">release</span></samp>&rsquo; (cheapest
! checks &lsquo;<samp><span class="samp">assert,runtime</span></samp>&rsquo;) or &lsquo;<samp><span class="samp">none</span></samp>&rsquo; (same as &lsquo;<samp><span class="samp">no</span></samp>&rsquo;). 
! Individual checks can be enabled with these flags &lsquo;<samp><span class="samp">assert</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">df</span></samp>&rsquo;, &lsquo;<samp><span class="samp">fold</span></samp>&rsquo;, &lsquo;<samp><span class="samp">gc</span></samp>&rsquo;, &lsquo;<samp><span class="samp">gcac</span></samp>&rsquo; &lsquo;<samp><span class="samp">misc</span></samp>&rsquo;, &lsquo;<samp><span class="samp">rtl</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">rtlflag</span></samp>&rsquo;, &lsquo;<samp><span class="samp">runtime</span></samp>&rsquo;, &lsquo;<samp><span class="samp">tree</span></samp>&rsquo;, and &lsquo;<samp><span class="samp">valgrind</span></samp>&rsquo;.
! 
!      <p>The &lsquo;<samp><span class="samp">valgrind</span></samp>&rsquo; check requires the external <samp><span class="command">valgrind</span></samp>
  simulator, available from <a href="http://valgrind.org/">http://valgrind.org/</a>.  The
! &lsquo;<samp><span class="samp">df</span></samp>&rsquo;, &lsquo;<samp><span class="samp">rtl</span></samp>&rsquo;, &lsquo;<samp><span class="samp">gcac</span></samp>&rsquo; and &lsquo;<samp><span class="samp">valgrind</span></samp>&rsquo; checks are very expensive. 
! To disable all checking, &lsquo;<samp><span class="samp">--disable-checking</span></samp>&rsquo; or
! &lsquo;<samp><span class="samp">--enable-checking=none</span></samp>&rsquo; must be explicitly requested.  Disabling
  assertions will make the compiler and runtime slightly faster but
  increase the risk of undetected internal errors causing wrong code to be
  generated.
! 
!      <br><dt><code>--disable-stage1-checking</code><dt><code>--enable-stage1-checking</code><dt><code>--enable-stage1-checking=</code><var>list</var><dd>If no <samp><span class="option">--enable-checking</span></samp> option is specified the stage1
! compiler will be built with &lsquo;<samp><span class="samp">yes</span></samp>&rsquo; checking enabled, otherwise
  the stage1 checking flags are the same as specified by
! <samp><span class="option">--enable-checking</span></samp>.  To build the stage1 compiler with
! different checking options use <samp><span class="option">--enable-stage1-checking</span></samp>. 
! The list of checking options is the same as for <samp><span class="option">--enable-checking</span></samp>. 
  If your system is too slow or too small to bootstrap a released compiler
! with checking for stage1 enabled, you can use &lsquo;<samp><span class="samp">--disable-stage1-checking</span></samp>&rsquo;
  to disable checking for the stage1 compiler.
! 
!      <br><dt><code>--enable-coverage</code><dt><code>--enable-coverage=</code><var>level</var><dd>With this option, the compiler is built to collect self coverage
  information, every time it is run.  This is for internal development
  purposes, and only works when the compiler is being built with gcc.  The
  <var>level</var> argument controls whether the compiler is built optimized or
! not, values are &lsquo;<samp><span class="samp">opt</span></samp>&rsquo; and &lsquo;<samp><span class="samp">noopt</span></samp>&rsquo;.  For coverage analysis you
  want to disable optimization, for performance analysis you want to
  enable optimization.  When coverage is enabled, the default level is
  without optimization.
! 
!      <br><dt><code>--enable-gather-detailed-mem-stats</code><dd>When this option is specified more detailed information on memory
  allocation is gathered.  This information is printed when using
! <samp><span class="option">-fmem-report</span></samp>.
! 
!      <br><dt><code>--enable-valgrind-annotations</code><dd>Mark selected memory related operations in the compiler when run under
  valgrind to suppress false positives.
! 
!      <br><dt><code>--enable-nls</code><dt><code>--disable-nls</code><dd>The <samp><span class="option">--enable-nls</span></samp> option enables Native Language Support (NLS),
  which lets GCC output diagnostics in languages other than American
  English.  Native Language Support is enabled by default if not doing a
! canadian cross build.  The <samp><span class="option">--disable-nls</span></samp> option disables NLS.
! 
!      <br><dt><code>--with-included-gettext</code><dd>If NLS is enabled, the <samp><span class="option">--with-included-gettext</span></samp> option causes the build
! procedure to prefer its copy of GNU <samp><span class="command">gettext</span></samp>.
! 
!      <br><dt><code>--with-catgets</code><dd>If NLS is enabled, and if the host lacks <code>gettext</code> but has the
  inferior <code>catgets</code> interface, the GCC build procedure normally
! ignores <code>catgets</code> and instead uses GCC's copy of the GNU
! <code>gettext</code> library.  The <samp><span class="option">--with-catgets</span></samp> option causes the
! build procedure to use the host's <code>catgets</code> in this situation.
! 
!      <br><dt><code>--with-libiconv-prefix=</code><var>dir</var><dd>Search for libiconv header files in <samp><var>dir</var><span class="file">/include</span></samp> and
! libiconv library files in <samp><var>dir</var><span class="file">/lib</span></samp>.
! 
!      <br><dt><code>--enable-obsolete</code><dd>Enable configuration for an obsoleted system.  If you attempt to
  configure GCC for a system (build, host, or target) which has been
  obsoleted, and you do not specify this flag, configure will halt with an
  error message.
! 
!      <p>All support for systems which have been obsoleted in one release of GCC
  is removed entirely in the next major release, unless someone steps
  forward to maintain the port.
! 
!      <br><dt><code>--enable-decimal-float</code><dt><code>--enable-decimal-float=yes</code><dt><code>--enable-decimal-float=no</code><dt><code>--enable-decimal-float=bid</code><dt><code>--enable-decimal-float=dpd</code><dt><code>--disable-decimal-float</code><dd>Enable (or disable) support for the C decimal floating point extension
  that is in the IEEE 754-2008 standard.  This is enabled by default only
  on PowerPC, i386, and x86_64 GNU/Linux systems.  Other systems may also
  support it, but require the user to specifically enable it.  You can
  optionally control which decimal floating point format is used (either
! &lsquo;<samp><span class="samp">bid</span></samp>&rsquo; or &lsquo;<samp><span class="samp">dpd</span></samp>&rsquo;).  The &lsquo;<samp><span class="samp">bid</span></samp>&rsquo; (binary integer decimal)
! format is default on i386 and x86_64 systems, and the &lsquo;<samp><span class="samp">dpd</span></samp>&rsquo;
  (densely packed decimal) format is default on PowerPC systems.
! 
!      <br><dt><code>--enable-fixed-point</code><dt><code>--disable-fixed-point</code><dd>Enable (or disable) support for C fixed-point arithmetic. 
  This option is enabled by default for some targets (such as MIPS) which
  have hardware-support for fixed-point operations.  On other targets, you
  may enable this option manually.
! 
!      <br><dt><code>--with-long-double-128</code><dd>Specify if <code>long double</code> type should be 128-bit by default on selected
  GNU/Linux architectures.  If using <code>--without-long-double-128</code>,
! <code>long double</code> will be by default 64-bit, the same as <code>double</code> type. 
  When neither of these configure options are used, the default will be
  128-bit <code>long double</code> when built against GNU C Library 2.4 and later,
  64-bit <code>long double</code> otherwise.
! 
!      <br><dt><code>--enable-fdpic</code><dd>On SH Linux systems, generate ELF FDPIC code.
! 
!      <br><dt><code>--with-gmp=</code><var>pathname</var><dt><code>--with-gmp-include=</code><var>pathname</var><dt><code>--with-gmp-lib=</code><var>pathname</var><dt><code>--with-mpfr=</code><var>pathname</var><dt><code>--with-mpfr-include=</code><var>pathname</var><dt><code>--with-mpfr-lib=</code><var>pathname</var><dt><code>--with-mpc=</code><var>pathname</var><dt><code>--with-mpc-include=</code><var>pathname</var><dt><code>--with-mpc-lib=</code><var>pathname</var><dd>If you want to build GCC but do not have the GMP library, the MPFR
  library and/or the MPC library installed in a standard location and
  do not have their sources present in the GCC source tree then you
  can explicitly specify the directory where they are installed
! (&lsquo;<samp><span class="samp">--with-gmp=</span><var>gmpinstalldir</var></samp>&rsquo;,
! &lsquo;<samp><span class="samp">--with-mpfr=</span><var>mpfrinstalldir</var></samp>&rsquo;,
! &lsquo;<samp><span class="samp">--with-mpc=</span><var>mpcinstalldir</var></samp>&rsquo;).  The
! <samp><span class="option">--with-gmp=</span><var>gmpinstalldir</var></samp> option is shorthand for
! <samp><span class="option">--with-gmp-lib=</span><var>gmpinstalldir</var><span class="option">/lib</span></samp> and
! <samp><span class="option">--with-gmp-include=</span><var>gmpinstalldir</var><span class="option">/include</span></samp>.  Likewise the
! <samp><span class="option">--with-mpfr=</span><var>mpfrinstalldir</var></samp> option is shorthand for
! <samp><span class="option">--with-mpfr-lib=</span><var>mpfrinstalldir</var><span class="option">/lib</span></samp> and
! <samp><span class="option">--with-mpfr-include=</span><var>mpfrinstalldir</var><span class="option">/include</span></samp>, also the
! <samp><span class="option">--with-mpc=</span><var>mpcinstalldir</var></samp> option is shorthand for
! <samp><span class="option">--with-mpc-lib=</span><var>mpcinstalldir</var><span class="option">/lib</span></samp> and
! <samp><span class="option">--with-mpc-include=</span><var>mpcinstalldir</var><span class="option">/include</span></samp>.  If these
  shorthand assumptions are not correct, you can use the explicit
  include and lib options directly.  You might also need to ensure the
  shared libraries can be found by the dynamic linker when building and
  using GCC, for example by setting the runtime shared library path
! variable (<samp><span class="env">LD_LIBRARY_PATH</span></samp> on GNU/Linux and Solaris systems).
! 
!      <p>These flags are applicable to the host platform only.  When building
  a cross compiler, they will not be used to configure target libraries.
! 
!      <br><dt><code>--with-isl=</code><var>pathname</var><dt><code>--with-isl-include=</code><var>pathname</var><dt><code>--with-isl-lib=</code><var>pathname</var><dd>If you do not have the isl library installed in a standard location and you
  want to build GCC, you can explicitly specify the directory where it is
! installed (&lsquo;<samp><span class="samp">--with-isl=</span><var>islinstalldir</var></samp>&rsquo;). The
! <samp><span class="option">--with-isl=</span><var>islinstalldir</var></samp> option is shorthand for
! <samp><span class="option">--with-isl-lib=</span><var>islinstalldir</var><span class="option">/lib</span></samp> and
! <samp><span class="option">--with-isl-include=</span><var>islinstalldir</var><span class="option">/include</span></samp>. If this
  shorthand assumption is not correct, you can use the explicit
  include and lib options directly.
! 
!      <p>These flags are applicable to the host platform only.  When building
  a cross compiler, they will not be used to configure target libraries.
! 
!      <br><dt><code>--with-stage1-ldflags=</code><var>flags</var><dd>This option may be used to set linker flags to be used when linking
  stage 1 of GCC.  These are also used when linking GCC if configured with
! <samp><span class="option">--disable-bootstrap</span></samp>.  If <samp><span class="option">--with-stage1-libs</span></samp> is not set to a
! value, then the default is &lsquo;<samp><span class="samp">-static-libstdc++ -static-libgcc</span></samp>&rsquo;, if
  supported.
! 
!      <br><dt><code>--with-stage1-libs=</code><var>libs</var><dd>This option may be used to set libraries to be used when linking stage 1
  of GCC.  These are also used when linking GCC if configured with
! <samp><span class="option">--disable-bootstrap</span></samp>.
! 
!      <br><dt><code>--with-boot-ldflags=</code><var>flags</var><dd>This option may be used to set linker flags to be used when linking
  stage 2 and later when bootstrapping GCC.  If &ndash;with-boot-libs
  is not is set to a value, then the default is
! &lsquo;<samp><span class="samp">-static-libstdc++ -static-libgcc</span></samp>&rsquo;.
! 
!      <br><dt><code>--with-boot-libs=</code><var>libs</var><dd>This option may be used to set libraries to be used when linking stage 2
  and later when bootstrapping GCC.
! 
!      <br><dt><code>--with-debug-prefix-map=</code><var>map</var><dd>Convert source directory names using <samp><span class="option">-fdebug-prefix-map</span></samp> when
  building runtime libraries.  &lsquo;<samp><var>map</var></samp>&rsquo; is a space-separated
! list of maps of the form &lsquo;<samp><var>old</var><span class="samp">=</span><var>new</var></samp>&rsquo;.
! 
!      <br><dt><code>--enable-linker-build-id</code><dd>Tells GCC to pass <samp><span class="option">--build-id</span></samp> option to the linker for all final
! links (links performed without the <samp><span class="option">-r</span></samp> or <samp><span class="option">--relocatable</span></samp>
  option), if the linker supports it.  If you specify
! <samp><span class="option">--enable-linker-build-id</span></samp>, but your linker does not
! support <samp><span class="option">--build-id</span></samp> option, a warning is issued and the
! <samp><span class="option">--enable-linker-build-id</span></samp> option is ignored.  The default is off.
! 
!      <br><dt><code>--with-linker-hash-style=</code><var>choice</var><dd>Tells GCC to pass <samp><span class="option">--hash-style=</span><var>choice</var></samp> option to the
  linker for all final links. <var>choice</var> can be one of
! &lsquo;<samp><span class="samp">sysv</span></samp>&rsquo;, &lsquo;<samp><span class="samp">gnu</span></samp>&rsquo;, and &lsquo;<samp><span class="samp">both</span></samp>&rsquo; where &lsquo;<samp><span class="samp">sysv</span></samp>&rsquo; is the default.
! 
!      <br><dt><code>--enable-gnu-unique-object</code><dt><code>--disable-gnu-unique-object</code><dd>Tells GCC to use the gnu_unique_object relocation for C++ template
  static data members and inline function local statics.  Enabled by
  default for a toolchain with an assembler that accepts it and
  GLIBC 2.11 or above, otherwise disabled.
! 
!      <br><dt><code>--with-diagnostics-color=</code><var>choice</var><dd>Tells GCC to use <var>choice</var> as the default for <samp><span class="option">-fdiagnostics-color=</span></samp>
  option (if not used explicitly on the command line).  <var>choice</var>
! can be one of &lsquo;<samp><span class="samp">never</span></samp>&rsquo;, &lsquo;<samp><span class="samp">auto</span></samp>&rsquo;, &lsquo;<samp><span class="samp">always</span></samp>&rsquo;, and &lsquo;<samp><span class="samp">auto-if-env</span></samp>&rsquo;
! where &lsquo;<samp><span class="samp">auto</span></samp>&rsquo; is the default.  &lsquo;<samp><span class="samp">auto-if-env</span></samp>&rsquo; means that
! <samp><span class="option">-fdiagnostics-color=auto</span></samp> will be the default if <code>GCC_COLORS</code>
  is present and non-empty in the environment, and
! <samp><span class="option">-fdiagnostics-color=never</span></samp> otherwise.
! 
!      <br><dt><code>--enable-lto</code><dt><code>--disable-lto</code><dd>Enable support for link-time optimization (LTO).  This is enabled by
! default, and may be disabled using <samp><span class="option">--disable-lto</span></samp>.
! 
!      <br><dt><code>--enable-linker-plugin-configure-flags=FLAGS</code><dt><code>--enable-linker-plugin-flags=FLAGS</code><dd>By default, linker plugins (such as the LTO plugin) are built for the
  host system architecture.  For the case that the linker has a
  different (but run-time compatible) architecture, these flags can be
  specified to build plugins that are compatible to the linker.  For
  example, if you are building GCC for a 64-bit x86_64
! (&lsquo;<samp><span class="samp">x86_64-unknown-linux-gnu</span></samp>&rsquo;) host system, but have a 32-bit x86
! GNU/Linux (&lsquo;<samp><span class="samp">i686-pc-linux-gnu</span></samp>&rsquo;) linker executable (which is
  executable on the former system), you can configure GCC as follows for
  getting compatible linker plugins:
  
!      <pre class="smallexample">          % <var>srcdir</var>/configure \
!               --host=x86_64-unknown-linux-gnu \
!               --enable-linker-plugin-configure-flags=--host=i686-pc-linux-gnu \
!               --enable-linker-plugin-flags='CC=gcc\ -m32\ -Wl,-rpath,[...]/i686-pc-linux-gnu/lib'
! </pre>
!      <br><dt><code>--with-plugin-ld=</code><var>pathname</var><dd>Enable an alternate linker to be used at link-time optimization (LTO)
! link time when <samp><span class="option">-fuse-linker-plugin</span></samp> is enabled. 
  This linker should have plugin support such as gold starting with
! version 2.20 or GNU ld starting with version 2.21. 
! See <samp><span class="option">-fuse-linker-plugin</span></samp> for details.
! 
!      <br><dt><code>--enable-canonical-system-headers</code><dt><code>--disable-canonical-system-headers</code><dd>Enable system header path canonicalization for <samp><span class="file">libcpp</span></samp>.  This can
  produce shorter header file paths in diagnostics and dependency output
  files, but these changed header paths may conflict with some compilation
  environments.  Enabled by default, and may be disabled using
! <samp><span class="option">--disable-canonical-system-headers</span></samp>.
! 
!      <br><dt><code>--with-glibc-version=</code><var>major</var><code>.</code><var>minor</var><dd>Tell GCC that when the GNU C Library (glibc) is used on the target it
  will be version <var>major</var>.<var>minor</var> or later.  Normally this can
! be detected from the C library's header files, but this option may be
  needed when bootstrapping a cross toolchain without the header files
  available for building the initial bootstrap compiler.
! 
!      <p>If GCC is configured with some multilibs that use glibc and some that
! do not, this option applies only to the multilibs that use glibc. 
  However, such configurations may not work well as not all the relevant
  configuration in GCC is on a per-multilib basis.
! 
!      <br><dt><code>--enable-as-accelerator-for=</code><var>target</var><dd>Build as offload target compiler. Specify offload host triple by <var>target</var>.
! 
!      <br><dt><code>--enable-offload-targets=</code><var>target1</var><code>[=</code><var>path1</var><code>],...,</code><var>targetN</var><code>[=</code><var>pathN</var><code>]</code><dd>Enable offloading to targets <var>target1</var>, <small class="dots">...</small>, <var>targetN</var>. 
  Offload compilers are expected to be already installed.  Default search
  path for them is <samp><var>exec-prefix</var></samp>, but it can be changed by
! specifying paths <var>path1</var>, <small class="dots">...</small>, <var>pathN</var>.
  
!      <pre class="smallexample">          % <var>srcdir</var>/configure \
!               --enable-offload-target=i686-unknown-linux-gnu=/path/to/i686/compiler,x86_64-pc-linux-gnu
! </pre>
!      <p>If &lsquo;<samp><span class="samp">hsa</span></samp>&rsquo; is specified as one of the targets, the compiler will be
  built with support for HSA GPU accelerators.  Because the same
  compiler will emit the accelerator code, no path should be specified.
! 
!      <br><dt><code>--with-hsa-runtime=</code><var>pathname</var><dt><code>--with-hsa-runtime-include=</code><var>pathname</var><dt><code>--with-hsa-runtime-lib=</code><var>pathname</var><dd>
! If you configure GCC with HSA offloading but do not have the HSA
  run-time library installed in a standard location then you can
  explicitly specify the directory where they are installed.  The
! <samp><span class="option">--with-hsa-runtime=</span><var>hsainstalldir</var></samp> option is a
  shorthand for
! <samp><span class="option">--with-hsa-runtime-lib=</span><var>hsainstalldir</var><span class="option">/lib</span></samp> and
! <samp><span class="option">--with-hsa-runtime-include=</span><var>hsainstalldir</var><span class="option">/include</span></samp>.
! 
!      <br><dt><code>--with-hsa-kmt-lib=</code><var>pathname</var><dd>
! If you configure GCC with HSA offloading but do not have the HSA
  KMT library installed in a standard location then you can
! explicitly specify the directory where it resides. 
  </dl>
  
! <h4 class="subheading"><a name="TOC3"></a>Cross-Compiler-Specific Options</h4>
! 
  <p>The following options only apply to building cross compilers.
! 
!      <dl>
! <dt><code>--with-sysroot</code><dt><code>--with-sysroot=</code><var>dir</var><dd>Tells GCC to consider <var>dir</var> as the root of a tree that contains
! (a subset of) the root filesystem of the target operating system. 
  Target system headers, libraries and run-time object files will be
  searched for in there.  More specifically, this acts as if
! <samp><span class="option">--sysroot=</span><var>dir</var></samp> was added to the default options of the built
  compiler.  The specified directory is not copied into the
! install tree, unlike the options <samp><span class="option">--with-headers</span></samp> and
! <samp><span class="option">--with-libs</span></samp> that this option obsoletes.  The default value,
! in case <samp><span class="option">--with-sysroot</span></samp> is not given an argument, is
! <samp><span class="option">${gcc_tooldir}/sys-root</span></samp>.  If the specified directory is a
! subdirectory of <samp><span class="option">${exec_prefix}</span></samp>, then it will be found relative to
  the GCC binaries if the installation tree is moved.
! 
!      <p>This option affects the system root for the compiler used to build
  target libraries (which runs on the build system) and the compiler newly
  installed with <code>make install</code>; it does not affect the compiler which is
  used to build GCC itself.
! 
!      <p>If you specify the <samp><span class="option">--with-native-system-header-dir=</span><var>dirname</var></samp>
  option then the compiler will search that directory within <var>dirname</var> for
! native system headers rather than the default <samp><span class="file">/usr/include</span></samp>.
! 
!      <br><dt><code>--with-build-sysroot</code><dt><code>--with-build-sysroot=</code><var>dir</var><dd>Tells GCC to consider <var>dir</var> as the system root (see
! <samp><span class="option">--with-sysroot</span></samp>) while building target libraries, instead of
! the directory specified with <samp><span class="option">--with-sysroot</span></samp>.  This option is
! only useful when you are already using <samp><span class="option">--with-sysroot</span></samp>.  You
! can use <samp><span class="option">--with-build-sysroot</span></samp> when you are configuring with
! <samp><span class="option">--prefix</span></samp> set to a directory that is different from the one in
  which you are installing GCC and your target libraries.
! 
!      <p>This option affects the system root for the compiler used to build
  target libraries (which runs on the build system); it does not affect
  the compiler which is used to build GCC itself.
! 
!      <p>If you specify the <samp><span class="option">--with-native-system-header-dir=</span><var>dirname</var></samp>
  option then the compiler will search that directory within <var>dirname</var> for
! native system headers rather than the default <samp><span class="file">/usr/include</span></samp>.
! 
!      <br><dt><code>--with-headers</code><dt><code>--with-headers=</code><var>dir</var><dd>Deprecated in favor of <samp><span class="option">--with-sysroot</span></samp>. 
! Specifies that target headers are available when building a cross compiler. 
  The <var>dir</var> argument specifies a directory which has the target include
! files.  These include files will be copied into the <samp><span class="file">gcc</span></samp> install
! directory.  <em>This option with the </em><var>dir</var><em> argument is required</em> when
! building a cross compiler, if <samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp>
! doesn't pre-exist.  If <samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp> does
! pre-exist, the <var>dir</var> argument may be omitted.  <samp><span class="command">fixincludes</span></samp>
  will be run on these files to make them compatible with GCC.
! 
!      <br><dt><code>--without-headers</code><dd>Tells GCC not use any target headers from a libc when building a cross
  compiler.  When crossing to GNU/Linux, you need the headers so GCC
  can build the exception handling for libgcc.
! 
!      <br><dt><code>--with-libs</code><dt><code>--with-libs="</code><var>dir1</var> <var>dir2</var><code> ... </code><var>dirN</var><code>"</code><dd>Deprecated in favor of <samp><span class="option">--with-sysroot</span></samp>. 
  Specifies a list of directories which contain the target runtime
! libraries.  These libraries will be copied into the <samp><span class="file">gcc</span></samp> install
  directory.  If the directory list is omitted, this option has no
  effect.
! 
!      <br><dt><code>--with-newlib</code><dd>Specifies that &lsquo;<samp><span class="samp">newlib</span></samp>&rsquo; is
  being used as the target C library.  This causes <code>__eprintf</code> to be
! omitted from <samp><span class="file">libgcc.a</span></samp> on the assumption that it will be provided by
! &lsquo;<samp><span class="samp">newlib</span></samp>&rsquo;.
! 
!      <br><dt><code>--with-avrlibc</code><dd>Specifies that &lsquo;<samp><span class="samp">AVR-Libc</span></samp>&rsquo; is
  being used as the target C library.  This causes float support
! functions like <code>__addsf3</code> to be omitted from <samp><span class="file">libgcc.a</span></samp> on
! the assumption that it will be provided by <samp><span class="file">libm.a</span></samp>.  For more
! technical details, cf. <a href="http://gcc.gnu.org/PR54461">PR54461</a>. 
  This option is only supported for the AVR target.  It is not supported for
  RTEMS configurations, which currently use newlib.  The option is
  supported since version 4.7.2 and is the default in 4.8.0 and newer.
! 
!      <br><dt><code>--with-nds32-lib=</code><var>library</var><dd>Specifies that <var>library</var> setting is used for building <samp><span class="file">libgcc.a</span></samp>. 
! Currently, the valid <var>library</var> is &lsquo;<samp><span class="samp">newlib</span></samp>&rsquo; or &lsquo;<samp><span class="samp">mculib</span></samp>&rsquo;. 
  This option is only supported for the NDS32 target.
! 
!      <br><dt><code>--with-build-time-tools=</code><var>dir</var><dd>Specifies where to find the set of target tools (assembler, linker, etc.) 
  that will be used while building GCC itself.  This option can be useful
  if the directory layouts are different between the system you are building
  GCC on, and the system where you will deploy it.
! 
!      <p>For example, on an &lsquo;<samp><span class="samp">ia64-hp-hpux</span></samp>&rsquo; system, you may have the GNU
! assembler and linker in <samp><span class="file">/usr/bin</span></samp>, and the native tools in a
  different path, and build a toolchain that expects to find the
! native tools in <samp><span class="file">/usr/bin</span></samp>.
! 
!      <p>When you use this option, you should ensure that <var>dir</var> includes
! <samp><span class="command">ar</span></samp>, <samp><span class="command">as</span></samp>, <samp><span class="command">ld</span></samp>, <samp><span class="command">nm</span></samp>,
! <samp><span class="command">ranlib</span></samp> and <samp><span class="command">strip</span></samp> if necessary, and possibly
! <samp><span class="command">objdump</span></samp>.  Otherwise, GCC may use an inconsistent set of
! tools. 
  </dl>
  
! <h5 class="subsubheading"><a name="TOC4"></a>Overriding <samp><span class="command">configure</span></samp> test results</h5>
  
  <p>Sometimes, it might be necessary to override the result of some
! <samp><span class="command">configure</span></samp> test, for example in order to ease porting to a new
! system or work around a bug in a test.  The toplevel <samp><span class="command">configure</span></samp>
  script provides three variables for this:
! 
!      <dl>
! <dt><code>build_configargs</code><dd><a name="index-g_t_0040code_007bbuild_005fconfigargs_007d-3"></a>The contents of this variable is passed to all build <samp><span class="command">configure</span></samp>
  scripts.
! 
!      <br><dt><code>host_configargs</code><dd><a name="index-g_t_0040code_007bhost_005fconfigargs_007d-4"></a>The contents of this variable is passed to all host <samp><span class="command">configure</span></samp>
  scripts.
! 
!      <br><dt><code>target_configargs</code><dd><a name="index-g_t_0040code_007btarget_005fconfigargs_007d-5"></a>The contents of this variable is passed to all target <samp><span class="command">configure</span></samp>
  scripts.
  
!    </dl>
! 
!    <p>In order to avoid shell and <samp><span class="command">make</span></samp> quoting issues for complex
! overrides, you can pass a setting for <samp><span class="env">CONFIG_SITE</span></samp> and set
  variables in the site file.
! 
! <h4 class="subheading"><a name="TOC5"></a>Java-Specific Options</h4>
  
  <p>The following option applies to the build of the Java front end.
! 
!      <dl>
! <dt><code>--disable-libgcj</code><dd>Specify that the run-time libraries
  used by GCJ should not be built.  This is useful in case you intend
! to use GCJ with some other run-time, or you're going to install it
  separately, or it just happens not to build on your particular
  machine.  In general, if the Java front end is enabled, the GCJ
! libraries will be enabled too, unless they're known to not work on
! the target platform.  If GCJ is enabled but &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo; isn't built, you
  may need to port it; in this case, before modifying the top-level
! <samp><span class="file">configure.ac</span></samp> so that &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo; is enabled by default on this platform,
! you may use <samp><span class="option">--enable-libgcj</span></samp> to override the default.
! 
!    </dl>
! 
!    <p>The following options apply to building &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo;.
  
! <h5 class="subsubheading"><a name="TOC6"></a>General Options</h5>
  
!      <dl>
! <dt><code>--enable-java-maintainer-mode</code><dd>By default the &lsquo;<samp><span class="samp">libjava</span></samp>&rsquo; build will not attempt to compile the
! <samp><span class="file">.java</span></samp> source files to <samp><span class="file">.class</span></samp>.  Instead, it will use the
! <samp><span class="file">.class</span></samp> files from the source tree.  If you use this option you
! must have executables named <samp><span class="command">ecj1</span></samp> and <samp><span class="command">gjavah</span></samp> in your path
  for use by the build.  You must use this option if you intend to
! modify any <samp><span class="file">.java</span></samp> files in <samp><span class="file">libjava</span></samp>.
! 
!      <br><dt><code>--with-java-home=</code><var>dirname</var><dd>This &lsquo;<samp><span class="samp">libjava</span></samp>&rsquo; option overrides the default value of the
! &lsquo;<samp><span class="samp">java.home</span></samp>&rsquo; system property.  It is also used to set
! &lsquo;<samp><span class="samp">sun.boot.class.path</span></samp>&rsquo; to <samp><var>dirname</var><span class="file">/lib/rt.jar</span></samp>.  By
! default &lsquo;<samp><span class="samp">java.home</span></samp>&rsquo; is set to <samp><var>prefix</var></samp> and
! &lsquo;<samp><span class="samp">sun.boot.class.path</span></samp>&rsquo; to
! <samp><var>datadir</var><span class="file">/java/libgcj-</span><var>version</var><span class="file">.jar</span></samp>.
! 
!      <br><dt><code>--with-ecj-jar=</code><var>filename</var><dd>This option can be used to specify the location of an external jar
  file containing the Eclipse Java compiler.  A specially modified
! version of this compiler is used by <samp><span class="command">gcj</span></samp> to parse
! <samp><span class="file">.java</span></samp> source files.  If this option is given, the
! &lsquo;<samp><span class="samp">libjava</span></samp>&rsquo; build will create and install an <samp><span class="file">ecj1</span></samp> executable
  which uses this jar file at runtime.
! 
!      <p>If this option is not given, but an <samp><span class="file">ecj.jar</span></samp> file is found in
! the topmost source tree at configure time, then the &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo;
! build will create and install <samp><span class="file">ecj1</span></samp>, and will also install the
! discovered <samp><span class="file">ecj.jar</span></samp> into a suitable place in the install tree.
! 
!      <p>If <samp><span class="file">ecj1</span></samp> is not installed, then the user will have to supply one
! on his path in order for <samp><span class="command">gcj</span></samp> to properly parse <samp><span class="file">.java</span></samp>
  source files.  A suitable jar is available from
  <a href="ftp://sourceware.org/pub/java/">ftp://sourceware.org/pub/java/</a>.
! 
!      <br><dt><code>--disable-getenv-properties</code><dd>Don't set system properties from <samp><span class="env">GCJ_PROPERTIES</span></samp>.
! 
!      <br><dt><code>--enable-hash-synchronization</code><dd>Use a global hash table for monitor locks.  Ordinarily,
! &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo;'s &lsquo;<samp><span class="samp">configure</span></samp>&rsquo; script automatically makes
  the correct choice for this option for your platform.  Only use
  this if you know you need the library to be configured differently.
! 
!      <br><dt><code>--enable-interpreter</code><dd>Enable the Java interpreter.  The interpreter is automatically
  enabled by default on all platforms that support it.  This option
  is really only useful if you want to disable the interpreter
! (using <samp><span class="option">--disable-interpreter</span></samp>).
! 
!      <br><dt><code>--disable-java-net</code><dd>Disable java.net.  This disables the native part of java.net only,
  using non-functional stubs for native method implementations.
! 
!      <br><dt><code>--disable-jvmpi</code><dd>Disable JVMPI support.
! 
!      <br><dt><code>--disable-libgcj-bc</code><dd>Disable BC ABI compilation of certain parts of libgcj.  By default,
! some portions of libgcj are compiled with <samp><span class="option">-findirect-dispatch</span></samp>
! and <samp><span class="option">-fno-indirect-classes</span></samp>, allowing them to be overridden at
  run-time.
! 
!      <p>If <samp><span class="option">--disable-libgcj-bc</span></samp> is specified, libgcj is built without
  these options.  This allows the compile-time linker to resolve
  dependencies when statically linking to libgcj.  However it makes it
  impossible to override the affected portions of libgcj at run-time.
! 
!      <br><dt><code>--enable-reduced-reflection</code><dd>Build most of libgcj with <samp><span class="option">-freduced-reflection</span></samp>.  This reduces
  the size of libgcj at the expense of not being able to do accurate
  reflection on the classes it contains.  This option is safe if you
  know that code using libgcj will never use reflection on the standard
  runtime classes in libgcj (including using serialization, RMI or CORBA).
! 
!      <br><dt><code>--with-ecos</code><dd>Enable runtime eCos target support.
! 
!      <br><dt><code>--without-libffi</code><dd>Don't use &lsquo;<samp><span class="samp">libffi</span></samp>&rsquo;.  This will disable the interpreter and JNI
! support as well, as these require &lsquo;<samp><span class="samp">libffi</span></samp>&rsquo; to work.
! 
!      <br><dt><code>--enable-libgcj-debug</code><dd>Enable runtime debugging code.
! 
!      <br><dt><code>--enable-libgcj-multifile</code><dd>If specified, causes all <samp><span class="file">.java</span></samp> source files to be
! compiled into <samp><span class="file">.class</span></samp> files in one invocation of
! &lsquo;<samp><span class="samp">gcj</span></samp>&rsquo;.  This can speed up build time, but is more
  resource-intensive.  If this option is unspecified or
! disabled, &lsquo;<samp><span class="samp">gcj</span></samp>&rsquo; is invoked once for each <samp><span class="file">.java</span></samp>
! file to compile into a <samp><span class="file">.class</span></samp> file.
! 
!      <br><dt><code>--with-libiconv-prefix=DIR</code><dd>Search for libiconv in <samp><span class="file">DIR/include</span></samp> and <samp><span class="file">DIR/lib</span></samp>.
! 
!      <br><dt><code>--with-system-zlib</code><dd>Use installed &lsquo;<samp><span class="samp">zlib</span></samp>&rsquo; rather than that included with GCC.
! 
!      <br><dt><code>--with-win32-nlsapi=ansi, unicows or unicode</code><dd>Indicates how MinGW &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo; translates between UNICODE
  characters and the Win32 API.
! 
!      <br><dt><code>--enable-java-home</code><dd>If enabled, this creates a JPackage compatible SDK environment during install. 
  Note that if &ndash;enable-java-home is used, &ndash;with-arch-directory=ARCH must also
  be specified.
! 
!      <br><dt><code>--with-arch-directory=ARCH</code><dd>Specifies the name to use for the <samp><span class="file">jre/lib/ARCH</span></samp> directory in the SDK
  environment created when &ndash;enable-java-home is passed. Typical names for this
  directory include i386, amd64, ia64, etc.
! 
!      <br><dt><code>--with-os-directory=DIR</code><dd>Specifies the OS directory for the SDK include directory. This is set to auto
! detect, and is typically 'linux'.
! 
!      <br><dt><code>--with-origin-name=NAME</code><dd>Specifies the JPackage origin name. This defaults to the 'gcj' in
  java-1.5.0-gcj.
! 
!      <br><dt><code>--with-arch-suffix=SUFFIX</code><dd>Specifies the suffix for the sdk directory. Defaults to the empty string. 
! Examples include '.x86_64' in 'java-1.5.0-gcj-1.5.0.0.x86_64'.
! 
!      <br><dt><code>--with-jvm-root-dir=DIR</code><dd>Specifies where to install the SDK. Default is $(prefix)/lib/jvm.
! 
!      <br><dt><code>--with-jvm-jar-dir=DIR</code><dd>Specifies where to install jars. Default is $(prefix)/lib/jvm-exports.
! 
!      <br><dt><code>--with-python-dir=DIR</code><dd>Specifies where to install the Python modules used for aot-compile. DIR should
  not include the prefix used in installation. For example, if the Python modules
  are to be installed in /usr/lib/python2.5/site-packages, then
  &ndash;with-python-dir=/lib/python2.5/site-packages should be passed. If this is
  not specified, then the Python modules are installed in $(prefix)/share/python.
! 
!      <br><dt><code>--enable-aot-compile-rpm</code><dd>Adds aot-compile-rpm to the list of installed scripts.
! 
!      <br><dt><code>--enable-browser-plugin</code><dd>Build the gcjwebplugin web browser plugin.
! 
!      <br><dt><code>--enable-static-libjava</code><dd>Build static libraries in libjava. The default is to only build shared
  libraries.
! 
!           <dl>
! <dt><code>ansi</code><dd>Use the single-byte <code>char</code> and the Win32 A functions natively,
  translating to and from UNICODE when using these functions.  If
  unspecified, this is the default.
! 
!           <br><dt><code>unicows</code><dd>Use the <code>WCHAR</code> and Win32 W functions natively.  Adds
! <code>-lunicows</code> to <samp><span class="file">libgcj.spec</span></samp> to link with &lsquo;<samp><span class="samp">libunicows</span></samp>&rsquo;. 
! <samp><span class="file">unicows.dll</span></samp> needs to be deployed on Microsoft Windows 9X machines
! running built executables.  <samp><span class="file">libunicows.a</span></samp>, an open-source
! import library around Microsoft's <code>unicows.dll</code>, is obtained from
  <a href="http://libunicows.sourceforge.net/">http://libunicows.sourceforge.net/</a>, which also gives details
! on getting <samp><span class="file">unicows.dll</span></samp> from Microsoft.
! 
!           <br><dt><code>unicode</code><dd>Use the <code>WCHAR</code> and Win32 W functions natively.  Does <em>not</em>
! add <code>-lunicows</code> to <samp><span class="file">libgcj.spec</span></samp>.  The built executables will
! only run on Microsoft Windows NT and above. 
  </dl>
-      </dl>
  
! <h5 class="subsubheading"><a name="TOC7"></a>AWT-Specific Options</h5>
  
!      <dl>
! <dt><code>--with-x</code><dd>Use the X Window System.
  
-      <br><dt><code>--enable-java-awt=PEER(S)</code><dd>Specifies the AWT peer library or libraries to build alongside
- &lsquo;<samp><span class="samp">libgcj</span></samp>&rsquo;.  If this option is unspecified or disabled, AWT
- will be non-functional.  Current valid values are <samp><span class="option">gtk</span></samp> and
- <samp><span class="option">xlib</span></samp>.  Multiple libraries should be separated by a
- comma (i.e. <samp><span class="option">--enable-java-awt=gtk,xlib</span></samp>).
  
!      <br><dt><code>--enable-gtk-cairo</code><dd>Build the cairo Graphics2D implementation on GTK.
  
-      <br><dt><code>--enable-java-gc=TYPE</code><dd>Choose garbage collector.  Defaults to <samp><span class="option">boehm</span></samp> if unspecified.
  
-      <br><dt><code>--disable-gtktest</code><dd>Do not try to compile and run a test GTK+ program.
  
-      <br><dt><code>--disable-glibtest</code><dd>Do not try to compile and run a test GLIB program.
  
-      <br><dt><code>--with-libart-prefix=PFX</code><dd>Prefix where libart is installed (optional).
  
-      <br><dt><code>--with-libart-exec-prefix=PFX</code><dd>Exec prefix where libart is installed (optional).
  
-      <br><dt><code>--disable-libarttest</code><dd>Do not try to compile and run a test libart program.
  
- </dl>
  
-    <p><hr />
- <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***Building**************************************************************** -->
- <!-- ***Testing***************************************************************** -->
- <!-- ***Final install*********************************************************** -->
- <!-- ***Binaries**************************************************************** -->
- <!-- ***Specific**************************************************************** -->
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 625,2073 ----
  <code>-mfpu=neon</code>, <code>-mfpu=vfpv4-d16</code>, <code>-mfpu=neon-vfpv4</code> or
  <code>-mfpu=neon-fp-armv8</code> depending on architecture) and floating-point ABI
  (<code>-mfloat-abi=softfp</code> or <code>-mfloat-abi=hard</code>).
! </p>
! </dd>
! <dt><code>sh*-*-*</code></dt>
! <dd><p><var>list</var> is a comma separated list of CPU names.  These must be of the
  form <code>sh*</code> or <code>m*</code> (in which case they match the compiler option
  for that processor).  The list should not contain any endian options -
! these are handled by <samp>--with-endian</samp>.
! </p>
! <p>If <var>list</var> is empty, then there will be no multilibs for extra
  processors.  The multilib for the secondary endian remains enabled.
! </p>
! <p>As a special case, if an entry in the list starts with a <code>!</code>
! (exclamation point), then it is added to the list of excluded multilibs.
! Entries of this sort should be compatible with &lsquo;<samp>MULTILIB_EXCLUDES</samp>&rsquo;
  (once the leading <code>!</code> has been stripped).
! </p>
! <p>If <samp>--with-multilib-list</samp> is not given, then a default set of
! multilibs is selected based on the value of <samp>--target</samp>.  This is
  usually the complete set of libraries, but some targets imply a more
  specialized subset.
! </p>
! <p>Example 1: to configure a compiler for SH4A only, but supporting both
  endians, with little endian being the default:
! </p><div class="smallexample">
! <pre class="smallexample">--with-cpu=sh4a --with-endian=little,big --with-multilib-list=
! </pre></div>
! 
! <p>Example 2: to configure a compiler for both SH4A and SH4AL-DSP, but with
  only little endian SH4AL:
! </p><div class="smallexample">
! <pre class="smallexample">--with-cpu=sh4a --with-endian=little,big \
! --with-multilib-list=sh4al,!mb/m4al
! </pre></div>
! 
! </dd>
! <dt><code>x86-64-*-linux*</code></dt>
! <dd><p><var>list</var> is a comma separated list of <code>m32</code>, <code>m64</code> and
  <code>mx32</code> to enable 32-bit, 64-bit and x32 run-time libraries,
  respectively.  If <var>list</var> is empty, then there will be no multilibs
  and only the default run-time library will be enabled.
! </p>
! <p>If <samp>--with-multilib-list</samp> is not given, then only 32-bit and
! 64-bit run-time libraries will be enabled.
! </p></dd>
  </dl>
  
! </dd>
! <dt><code>--with-endian=<var>endians</var></code></dt>
! <dd><p>Specify what endians to use.
  Currently only implemented for sh*-*-*.
! </p>
! <p><var>endians</var> may be one of the following:
! </p><dl compact="compact">
! <dt><code>big</code></dt>
! <dd><p>Use big endian exclusively.
! </p></dd>
! <dt><code>little</code></dt>
! <dd><p>Use little endian exclusively.
! </p></dd>
! <dt><code>big,little</code></dt>
! <dd><p>Use big endian by default.  Provide a multilib for little endian.
! </p></dd>
! <dt><code>little,big</code></dt>
! <dd><p>Use little endian by default.  Provide a multilib for big endian.
! </p></dd>
  </dl>
  
! </dd>
! <dt><code>--enable-threads</code></dt>
! <dd><p>Specify that the target
  supports threads.  This affects the Objective-C compiler and runtime
! library, and exception handling for other languages like C++ and Java.
  On some systems, this is the default.
! </p>
! <p>In general, the best (and, in many cases, the only known) threading
  model available will be configured for use.  Beware that on some
  systems, GCC has not been taught what threading models are generally
! available for the system.  In this case, <samp>--enable-threads</samp> is an
! alias for <samp>--enable-threads=single</samp>.
! </p>
! </dd>
! <dt><code>--disable-threads</code></dt>
! <dd><p>Specify that threading support should be disabled for the system.
! This is an alias for <samp>--enable-threads=single</samp>.
! </p>
! </dd>
! <dt><code>--enable-threads=<var>lib</var></code></dt>
! <dd><p>Specify that
  <var>lib</var> is the thread support library.  This affects the Objective-C
  compiler and runtime library, and exception handling for other languages
  like C++ and Java.  The possibilities for <var>lib</var> are:
! </p>
! <dl compact="compact">
! <dt><code>aix</code></dt>
! <dd><p>AIX thread support.
! </p></dd>
! <dt><code>dce</code></dt>
! <dd><p>DCE thread support.
! </p></dd>
! <dt><code>lynx</code></dt>
! <dd><p>LynxOS thread support.
! </p></dd>
! <dt><code>mipssde</code></dt>
! <dd><p>MIPS SDE thread support.
! </p></dd>
! <dt><code>no</code></dt>
! <dd><p>This is an alias for &lsquo;<samp>single</samp>&rsquo;.
! </p></dd>
! <dt><code>posix</code></dt>
! <dd><p>Generic POSIX/Unix98 thread support.
! </p></dd>
! <dt><code>rtems</code></dt>
! <dd><p>RTEMS thread support.
! </p></dd>
! <dt><code>single</code></dt>
! <dd><p>Disable thread support, should work for all platforms.
! </p></dd>
! <dt><code>tpf</code></dt>
! <dd><p>TPF thread support.
! </p></dd>
! <dt><code>vxworks</code></dt>
! <dd><p>VxWorks thread support.
! </p></dd>
! <dt><code>win32</code></dt>
! <dd><p>Microsoft Win32 API thread support.
! </p></dd>
  </dl>
  
! </dd>
! <dt><code>--enable-tls</code></dt>
! <dd><p>Specify that the target supports TLS (Thread Local Storage).  Usually
  configure can correctly determine if TLS is supported.  In cases where
  it guesses incorrectly, TLS can be explicitly enabled or disabled with
! <samp>--enable-tls</samp> or <samp>--disable-tls</samp>.  This can happen if
  the assembler supports TLS but the C library does not, or if the
  assumptions made by the configure test are incorrect.
! </p>
! </dd>
! <dt><code>--disable-tls</code></dt>
! <dd><p>Specify that the target does not support TLS.
! This is an alias for <samp>--enable-tls=no</samp>.
! </p>
! </dd>
! <dt><code>--with-cpu=<var>cpu</var></code></dt>
! <dt><code>--with-cpu-32=<var>cpu</var></code></dt>
! <dt><code>--with-cpu-64=<var>cpu</var></code></dt>
! <dd><p>Specify which cpu variant the compiler should generate code for by default.
! <var>cpu</var> will be used as the default value of the <samp>-mcpu=</samp> switch.
  This option is only supported on some targets, including ARC, ARM, i386, M68k,
! PowerPC, and SPARC.  It is mandatory for ARC.  The <samp>--with-cpu-32</samp> and
! <samp>--with-cpu-64</samp> options specify separate default CPUs for
  32-bit and 64-bit modes; these options are only supported for i386,
  x86-64, PowerPC, and SPARC.
! </p>
! </dd>
! <dt><code>--with-schedule=<var>cpu</var></code></dt>
! <dt><code>--with-arch=<var>cpu</var></code></dt>
! <dt><code>--with-arch-32=<var>cpu</var></code></dt>
! <dt><code>--with-arch-64=<var>cpu</var></code></dt>
! <dt><code>--with-tune=<var>cpu</var></code></dt>
! <dt><code>--with-tune-32=<var>cpu</var></code></dt>
! <dt><code>--with-tune-64=<var>cpu</var></code></dt>
! <dt><code>--with-abi=<var>abi</var></code></dt>
! <dt><code>--with-fpu=<var>type</var></code></dt>
! <dt><code>--with-float=<var>type</var></code></dt>
! <dd><p>These configure options provide default values for the <samp>-mschedule=</samp>,
! <samp>-march=</samp>, <samp>-mtune=</samp>, <samp>-mabi=</samp>, and <samp>-mfpu=</samp>
! options and for <samp>-mhard-float</samp> or <samp>-msoft-float</samp>.  As with
! <samp>--with-cpu</samp>, which switches will be accepted and acceptable values
  of the arguments depend on the target.
! </p>
! </dd>
! <dt><code>--with-mode=<var>mode</var></code></dt>
! <dd><p>Specify if the compiler should default to <samp>-marm</samp> or <samp>-mthumb</samp>.
  This option is only supported on ARM targets.
! </p>
! </dd>
! <dt><code>--with-stack-offset=<var>num</var></code></dt>
! <dd><p>This option sets the default for the -mstack-offset=<var>num</var> option,
  and will thus generally also control the setting of this option for
  libraries.  This option is only supported on Epiphany targets.
! </p>
! </dd>
! <dt><code>--with-fpmath=<var>isa</var></code></dt>
! <dd><p>This options sets <samp>-mfpmath=sse</samp> by default and specifies the default
! ISA for floating-point arithmetics.  You can select either &lsquo;<samp>sse</samp>&rsquo; which
! enables <samp>-msse2</samp> or &lsquo;<samp>avx</samp>&rsquo; which enables <samp>-mavx</samp> by default.
  This option is only supported on i386 and x86-64 targets.
! </p>
! </dd>
! <dt><code>--with-fp-32=<var>mode</var></code></dt>
! <dd><p>On MIPS targets, set the default value for the <samp>-mfp</samp> option when using
  the o32 ABI.  The possibilities for <var>mode</var> are:
! </p><dl compact="compact">
! <dt><code>32</code></dt>
! <dd><p>Use the o32 FP32 ABI extension, as with the <samp>-mfp32</samp> command-line
! option.
! </p></dd>
! <dt><code>xx</code></dt>
! <dd><p>Use the o32 FPXX ABI extension, as with the <samp>-mfpxx</samp> command-line
! option.
! </p></dd>
! <dt><code>64</code></dt>
! <dd><p>Use the o32 FP64 ABI extension, as with the <samp>-mfp64</samp> command-line
! option.
! </p></dd>
  </dl>
! <p>In the absence of this configuration option the default is to use the o32
  FP32 ABI extension.
! </p>
! </dd>
! <dt><code>--with-odd-spreg-32</code></dt>
! <dd><p>On MIPS targets, set the <samp>-modd-spreg</samp> option by default when using
  the o32 ABI.
! </p>
! </dd>
! <dt><code>--without-odd-spreg-32</code></dt>
! <dd><p>On MIPS targets, set the <samp>-mno-odd-spreg</samp> option by default when using
  the o32 ABI.  This is normally used in conjunction with
! <samp>--with-fp-32=64</samp> in order to target the o32 FP64A ABI extension.
! </p>
! </dd>
! <dt><code>--with-nan=<var>encoding</var></code></dt>
! <dd><p>On MIPS targets, set the default encoding convention to use for the
  special not-a-number (NaN) IEEE 754 floating-point data.  The
  possibilities for <var>encoding</var> are:
! </p><dl compact="compact">
! <dt><code>legacy</code></dt>
! <dd><p>Use the legacy encoding, as with the <samp>-mnan=legacy</samp> command-line
! option.
! </p></dd>
! <dt><code>2008</code></dt>
! <dd><p>Use the 754-2008 encoding, as with the <samp>-mnan=2008</samp> command-line
! option.
! </p></dd>
  </dl>
! <p>To use this configuration option you must have an assembler version
! installed that supports the <samp>-mnan=</samp> command-line option too.
  In the absence of this configuration option the default convention is
! the legacy encoding, as when neither of the <samp>-mnan=2008</samp> and
! <samp>-mnan=legacy</samp> command-line options has been used.
! </p>
! </dd>
! <dt><code>--with-divide=<var>type</var></code></dt>
! <dd><p>Specify how the compiler should generate code for checking for
! division by zero.  This option is only supported on the MIPS target.
  The possibilities for <var>type</var> are:
! </p><dl compact="compact">
! <dt><code>traps</code></dt>
! <dd><p>Division by zero checks use conditional traps (this is the default on
! systems that support conditional traps).
! </p></dd>
! <dt><code>breaks</code></dt>
! <dd><p>Division by zero checks use the break instruction.
! </p></dd>
  </dl>
  
! 
! </dd>
! <dt><code>--with-llsc</code></dt>
! <dd><p>On MIPS targets, make <samp>-mllsc</samp> the default when no
! <samp>-mno-llsc</samp> option is passed.  This is the default for
  Linux-based targets, as the kernel will emulate them if the ISA does
  not provide them.
! </p>
! </dd>
! <dt><code>--without-llsc</code></dt>
! <dd><p>On MIPS targets, make <samp>-mno-llsc</samp> the default when no
! <samp>-mllsc</samp> option is passed.
! </p>
! </dd>
! <dt><code>--with-synci</code></dt>
! <dd><p>On MIPS targets, make <samp>-msynci</samp> the default when no
! <samp>-mno-synci</samp> option is passed.
! </p>
! </dd>
! <dt><code>--without-synci</code></dt>
! <dd><p>On MIPS targets, make <samp>-mno-synci</samp> the default when no
! <samp>-msynci</samp> option is passed.  This is the default.
! </p>
! </dd>
! <dt><code>--with-mips-plt</code></dt>
! <dd><p>On MIPS targets, make use of copy relocations and PLTs.
  These features are extensions to the traditional
  SVR4-based MIPS ABIs and require support from GNU binutils
  and the runtime C library.
! </p>
! </dd>
! <dt><code>--enable-__cxa_atexit</code></dt>
! <dd><p>Define if you want to use __cxa_atexit, rather than atexit, to
! register C++ destructors for local statics and global objects.
  This is essential for fully standards-compliant handling of
  destructors, but requires __cxa_atexit in libc.  This option is currently
  only available on systems with GNU libc.  When enabled, this will cause
! <samp>-fuse-cxa-atexit</samp> to be passed by default.
! </p>
! </dd>
! <dt><code>--enable-gnu-indirect-function</code></dt>
! <dd><p>Define if you want to enable the <code>ifunc</code> attribute.  This option is
  currently only available on systems with GNU libc on certain targets.
! </p>
! </dd>
! <dt><code>--enable-target-optspace</code></dt>
! <dd><p>Specify that target
! libraries should be optimized for code space instead of code speed.
  This is the default for the m32r platform.
! </p>
! </dd>
! <dt><code>--with-cpp-install-dir=<var>dirname</var></code></dt>
! <dd><p>Specify that the user visible <code>cpp</code> program should be installed
! in <samp><var>prefix</var>/<var>dirname</var>/cpp</samp>, in addition to <var>bindir</var>.
! </p>
! </dd>
! <dt><code>--enable-comdat</code></dt>
! <dd><p>Enable COMDAT group support.  This is primarily used to override the
  automatically detected value.
! </p>
! </dd>
! <dt><code>--enable-initfini-array</code></dt>
! <dd><p>Force the use of sections <code>.init_array</code> and <code>.fini_array</code>
  (instead of <code>.init</code> and <code>.fini</code>) for constructors and
! destructors.  Option <samp>--disable-initfini-array</samp> has the
  opposite effect.  If neither option is specified, the configure script
  will try to guess whether the <code>.init_array</code> and
  <code>.fini_array</code> sections are supported and, if they are, use them.
! </p>
! </dd>
! <dt><code>--enable-link-mutex</code></dt>
! <dd><p>When building GCC, use a mutex to avoid linking the compilers for
  multiple languages at the same time, to avoid thrashing on build
  systems with limited free memory.  The default is not to use such a mutex.
! </p>
! </dd>
! <dt><code>--enable-maintainer-mode</code></dt>
! <dd><p>The build rules that regenerate the Autoconf and Automake output files as
! well as the GCC master message catalog <samp>gcc.pot</samp> are normally
  disabled.  This is because it can only be rebuilt if the complete source
  tree is present.  If you have changed the sources and want to rebuild the
! catalog, configuring with <samp>--enable-maintainer-mode</samp> will enable
  this.  Note that you need a recent version of the <code>gettext</code> tools
  to do so.
! </p>
! </dd>
! <dt><code>--disable-bootstrap</code></dt>
! <dd><p>For a native build, the default configuration is to perform
! a 3-stage bootstrap of the compiler when &lsquo;<samp>make</samp>&rsquo; is invoked,
  testing that GCC can compile itself correctly.  If you want to disable
! this process, you can configure with <samp>--disable-bootstrap</samp>.
! </p>
! </dd>
! <dt><code>--enable-bootstrap</code></dt>
! <dd><p>In special cases, you may want to perform a 3-stage build
! even if the target and host triplets are different.
  This is possible when the host can run code compiled for
! the target (e.g. host is i686-linux, target is i486-linux).
  Starting from GCC 4.2, to do this you have to configure explicitly
! with <samp>--enable-bootstrap</samp>.
! </p>
! </dd>
! <dt><code>--enable-generated-files-in-srcdir</code></dt>
! <dd><p>Neither the .c and .h files that are generated from Bison and flex nor the
  info manuals and man pages that are built from the .texi files are present
  in the SVN development tree.  When building GCC from that development tree,
  or from one of our snapshots, those generated files are placed in your
  build directory, which allows for the source to be in a readonly
  directory.
! </p>
! <p>If you configure with <samp>--enable-generated-files-in-srcdir</samp> then those
  generated files will go into the source directory.  This is mainly intended
  for generating release or prerelease tarballs of the GCC sources, since it
  is not a requirement that the users of source releases to have flex, Bison,
  or makeinfo.
! </p>
! </dd>
! <dt><code>--enable-version-specific-runtime-libs</code></dt>
! <dd><p>Specify
  that runtime libraries should be installed in the compiler specific
! subdirectory (<samp><var>libdir</var>/gcc</samp>) rather than the usual places.  In
! addition, &lsquo;<samp>libstdc++</samp>&rsquo;&rsquo;s include files will be installed into
  <samp><var>libdir</var></samp> unless you overruled it by using
! <samp>--with-gxx-include-dir=<var>dirname</var></samp>.  Using this option is
  particularly useful if you intend to use several versions of GCC in
! parallel.  This is currently supported by &lsquo;<samp>libgfortran</samp>&rsquo;,
! &lsquo;<samp>libjava</samp>&rsquo;, &lsquo;<samp>libstdc++</samp>&rsquo;, and &lsquo;<samp>libobjc</samp>&rsquo;.
! </p>
! </dd>
! <dt><code><a name="WithAixSoname"></a>--with-aix-soname=&lsquo;<samp>aix</samp>&rsquo;, &lsquo;<samp>svr4</samp>&rsquo; or &lsquo;<samp>both</samp>&rsquo;</code></dt>
! <dd><p>Traditional AIX shared library versioning (versioned <code>Shared Object</code>
  files as members of unversioned <code>Archive Library</code> files named
! &lsquo;<samp>lib.a</samp>&rsquo;) causes numerous headaches for package managers. However,
  <code>Import Files</code> as members of <code>Archive Library</code> files allow for
  <strong>filename-based versioning</strong> of shared libraries as seen on Linux/SVR4,
! where this is called the &quot;SONAME&quot;. But as they prevent static linking,
  <code>Import Files</code> may be used with <code>Runtime Linking</code> only, where the
! linker does search for &lsquo;<samp>libNAME.so</samp>&rsquo; before &lsquo;<samp>libNAME.a</samp>&rsquo; library
! filenames with the &lsquo;<samp>-lNAME</samp>&rsquo; linker flag.
! </p>
! <a name="AixLdCommand"></a><p>For detailed information please refer to the AIX
! <a href="http://www-01.ibm.com/support/knowledgecenter/search/%22the%20ld%20command%2C%20also%20called%20the%20linkage%20editor%20or%20binder%22">ld
! Command</a> reference.
! </p>
! <p>As long as shared library creation is enabled, upon:
! </p><dl compact="compact">
! <dt><code>--with-aix-soname=aix</code></dt>
! <dt><code>--with-aix-soname=both</code></dt>
! <dd><p>A (traditional AIX) <code>Shared Archive Library</code> file is created:
!  </p><ul>
! <li> using the &lsquo;<samp>libNAME.a</samp>&rsquo; filename scheme
!   </li><li> with the <code>Shared Object</code> file as archive member named
!   &lsquo;<samp>libNAME.so.V</samp>&rsquo; (except for &lsquo;<samp>libgcc_s</samp>&rsquo;, where the <code>Shared
!   Object</code> file is named &lsquo;<samp>shr.o</samp>&rsquo; for backwards compatibility), which
!   <ul class="no-bullet">
! <li>- is used for runtime loading from inside the &lsquo;<samp>libNAME.a</samp>&rsquo; file
!    </li><li>- is used for dynamic loading via
!    <code>dlopen(&quot;libNAME.a(libNAME.so.V)&quot;, RTLD_MEMBER)</code>
!    </li><li>- is used for shared linking
!    </li><li>- is used for static linking, so no separate <code>Static Archive
     Library</code> file is needed
!   </li></ul>
! </li></ul>
! </dd>
! <dt><code>--with-aix-soname=both</code></dt>
! <dt><code>--with-aix-soname=svr4</code></dt>
! <dd><p>A (second) <code>Shared Archive Library</code> file is created:
!  </p><ul>
! <li> using the &lsquo;<samp>libNAME.so.V</samp>&rsquo; filename scheme
!  </li><li> with the <code>Shared Object</code> file as archive member named
!  &lsquo;<samp>shr.o</samp>&rsquo;, which
!   <ul class="no-bullet">
! <li>- is created with the <code>-G linker flag</code>
!    </li><li>- has the <code>F_LOADONLY</code> flag set
!    </li><li>- is used for runtime loading from inside the &lsquo;<samp>libNAME.so.V</samp>&rsquo; file
!    </li><li>- is used for dynamic loading via <code>dlopen(&quot;libNAME.so.V(shr.o)&quot;,
     RTLD_MEMBER)</code>
!   </li></ul>
! </li><li> with the <code>Import File</code> as archive member named &lsquo;<samp>shr.imp</samp>&rsquo;,
   which
!   <ul class="no-bullet">
! <li>- refers to &lsquo;<samp>libNAME.so.V(shr.o)</samp>&rsquo; as the &quot;SONAME&quot;, to be recorded
     in the <code>Loader Section</code> of subsequent binaries
!    </li><li>- indicates whether &lsquo;<samp>libNAME.so.V(shr.o)</samp>&rsquo; is 32 or 64 bit
!    </li><li>- lists all the public symbols exported by &lsquo;<samp>lib.so.V(shr.o)</samp>&rsquo;,
!    eventually decorated with the <code>&lsquo;<samp>weak</samp>&rsquo; Keyword</code>
!    </li><li>- is necessary for shared linking against &lsquo;<samp>lib.so.V(shr.o)</samp>&rsquo;
!    </li></ul>
! </li></ul>
! <p>A symbolic link using the &lsquo;<samp>libNAME.so</samp>&rsquo; filename scheme is created:
!   </p><ul>
! <li> pointing to the &lsquo;<samp>libNAME.so.V</samp>&rsquo; <code>Shared Archive Library</code> file
!   </li><li> to permit the <code>ld Command</code> to find &lsquo;<samp>lib.so.V(shr.imp)</samp>&rsquo; via
!   the &lsquo;<samp>-lNAME</samp>&rsquo; argument (requires <code>Runtime Linking</code> to be enabled)
!   </li><li> to permit dynamic loading of &lsquo;<samp>lib.so.V(shr.o)</samp>&rsquo; without the need
!   to specify the version number via <code>dlopen(&quot;libNAME.so(shr.o)&quot;,
    RTLD_MEMBER)</code>
!   </li></ul>
! </dd>
! </dl>
  
! <p>As long as static library creation is enabled, upon:
! </p><dl compact="compact">
! <dt><code>--with-aix-soname=svr4</code></dt>
! <dd><p>A <code>Static Archive Library</code> is created:
!  </p><ul>
! <li> using the &lsquo;<samp>libNAME.a</samp>&rsquo; filename scheme
!  </li><li> with all the <code>Static Object</code> files as archive members, which
!   <ul class="no-bullet">
! <li>- are used for static linking
!   </li></ul>
! </li></ul>
! </dd>
! </dl>
  
! <p>While the aix-soname=&lsquo;<samp>svr4</samp>&rsquo; option does not create <code>Shared Object</code>
  files as members of unversioned <code>Archive Library</code> files any more, package
  managers still are responsible to
  <a href="./specific.html#TransferAixShobj">transfer</a> <code>Shared Object</code> files
  found as member of a previously installed unversioned <code>Archive Library</code>
  file into the newly installed <code>Archive Library</code> file with the same
  filename.
! </p>
! <p><em>WARNING:</em> Creating <code>Shared Object</code> files with <code>Runtime Linking</code>
  enabled may bloat the TOC, eventually leading to <code>TOC overflow</code> errors,
! requiring the use of either the <samp>-Wl,-bbigtoc</samp> linker flag (seen to
  break with the <code>GDB</code> debugger) or some of the TOC-related compiler flags,
  see &ldquo;RS/6000 and PowerPC Options&rdquo; in the main manual.
! </p>
! <p><samp>--with-aix-soname</samp> is currently supported by &lsquo;<samp>libgcc_s</samp>&rsquo; only, so
  this option is still experimental and not for normal use yet.
! </p>
! <p>Default is the traditional behavior <samp>--with-aix-soname=&lsquo;<samp>aix</samp>&rsquo;</samp>.
! </p>
! </dd>
! <dt><code>--enable-languages=<var>lang1</var>,<var>lang2</var>,&hellip;</code></dt>
! <dd><p>Specify that only a particular subset of compilers and
  their runtime libraries should be built.  For a list of valid values for
  <var>langN</var> you can issue the following command in the
! <samp>gcc</samp> directory of your GCC source tree:<br>
! </p><div class="smallexample">
! <pre class="smallexample">grep ^language= */config-lang.in
! </pre></div>
! <p>Currently, you can use any of the following:
  <code>all</code>, <code>ada</code>, <code>c</code>, <code>c++</code>, <code>fortran</code>,
! <code>go</code>, <code>java</code>, <code>jit</code>, <code>lto</code>, <code>objc</code>, <code>obj-c++</code>.
! Building the Ada compiler has special requirements, see below.
  If you do not pass this flag, or specify the option <code>all</code>, then all
! default languages available in the <samp>gcc</samp> sub-tree will be configured.
  Ada, Go, Jit, and Objective-C++ are not default languages.  LTO is not a
! default language, but is built by default because <samp>--enable-lto</samp> is
  enabled by default.  The other languages are default languages.
! </p>
! </dd>
! <dt><code>--enable-stage1-languages=<var>lang1</var>,<var>lang2</var>,&hellip;</code></dt>
! <dd><p>Specify that a particular subset of compilers and their runtime
  libraries should be built with the system C compiler during stage 1 of
  the bootstrap process, rather than only in later stages with the
  bootstrapped C compiler.  The list of valid values is the same as for
! <samp>--enable-languages</samp>, and the option <code>all</code> will select all
! of the languages enabled by <samp>--enable-languages</samp>.  This option is
  primarily useful for GCC development; for instance, when a development
  version of the compiler cannot bootstrap due to compiler bugs, or when
  one is debugging front ends other than the C front end.  When this
  option is used, one can then build the target libraries for the
! specified languages with the stage-1 compiler by using <code>make
! stage1-bubble all-target</code>, or run the testsuite on the stage-1 compiler
! for the specified languages using <code>make stage1-start check-gcc</code>.
! </p>
! </dd>
! <dt><code>--disable-libada</code></dt>
! <dd><p>Specify that the run-time libraries and tools used by GNAT should not
  be built.  This can be useful for debugging, or for compatibility with
  previous Ada build procedures, when it was required to explicitly
! do a &lsquo;<samp>make -C gcc gnatlib_and_tools</samp>&rsquo;.
! </p>
! </dd>
! <dt><code>--disable-libsanitizer</code></dt>
! <dd><p>Specify that the run-time libraries for the various sanitizers should
  not be built.
! </p>
! </dd>
! <dt><code>--disable-libssp</code></dt>
! <dd><p>Specify that the run-time libraries for stack smashing protection
  should not be built.
! </p>
! </dd>
! <dt><code>--disable-libquadmath</code></dt>
! <dd><p>Specify that the GCC quad-precision math library should not be built.
  On some systems, the library is required to be linkable when building
! the Fortran front end, unless <samp>--disable-libquadmath-support</samp>
  is used.
! </p>
! </dd>
! <dt><code>--disable-libquadmath-support</code></dt>
! <dd><p>Specify that the Fortran front end and <code>libgfortran</code> do not add
  support for <code>libquadmath</code> on systems supporting it.
! </p>
! </dd>
! <dt><code>--disable-libgomp</code></dt>
! <dd><p>Specify that the GNU Offloading and Multi Processing Runtime Library
  should not be built.
! </p>
! </dd>
! <dt><code>--disable-libvtv</code></dt>
! <dd><p>Specify that the run-time libraries used by vtable verification
  should not be built.
! </p>
! </dd>
! <dt><code>--with-dwarf2</code></dt>
! <dd><p>Specify that the compiler should
  use DWARF 2 debugging information as the default.
! </p>
! </dd>
! <dt><code>--with-advance-toolchain=<var>at</var></code></dt>
! <dd><p>On 64-bit PowerPC Linux systems, configure the compiler to use the
  header files, library files, and the dynamic linker from the Advance
  Toolchain release <var>at</var> instead of the default versions that are
  provided by the Linux distribution.  In general, this option is
  intended for the developers of GCC, and it is not intended for general
  use.
! </p>
! </dd>
! <dt><code>--enable-targets=all</code></dt>
! <dt><code>--enable-targets=<var>target_list</var></code></dt>
! <dd><p>Some GCC targets, e.g. powerpc64-linux, build bi-arch compilers.
  These are compilers that are able to generate either 64-bit or 32-bit
! code.  Typically, the corresponding 32-bit target, e.g.
  powerpc-linux for powerpc64-linux, only generates 32-bit code.  This
  option enables the 32-bit target to be a bi-arch compiler, which is
  useful when you want a bi-arch compiler that defaults to 32-bit, and
! you are building a bi-arch or multi-arch binutils in a combined tree.
  On mips-linux, this will build a tri-arch compiler (ABI o32/n32/64),
! defaulted to o32.
  Currently, this option only affects sparc-linux, powerpc-linux, x86-linux,
  mips-linux and s390-linux.
! </p>
! </dd>
! <dt><code>--enable-default-pie</code></dt>
! <dd><p>Turn on <samp>-fPIE</samp> and <samp>-pie</samp> by default.
! </p>
! </dd>
! <dt><code>--enable-secureplt</code></dt>
! <dd><p>This option enables <samp>-msecure-plt</samp> by default for powerpc-linux.
  See &ldquo;RS/6000 and PowerPC Options&rdquo; in the main manual
! </p>
! </dd>
! <dt><code>--enable-default-ssp</code></dt>
! <dd><p>Turn on <samp>-fstack-protector-strong</samp> by default.
! </p>
! </dd>
! <dt><code>--enable-cld</code></dt>
! <dd><p>This option enables <samp>-mcld</samp> by default for 32-bit x86 targets.
  See &ldquo;i386 and x86-64 Options&rdquo; in the main manual
! </p>
! </dd>
! <dt><code>--enable-win32-registry</code></dt>
! <dt><code>--enable-win32-registry=<var>key</var></code></dt>
! <dt><code>--disable-win32-registry</code></dt>
! <dd><p>The <samp>--enable-win32-registry</samp> option enables Microsoft Windows-hosted GCC
  to look up installations paths in the registry using the following key:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample"><code>HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\<var>key</var></code>
+ </pre></div>
  
! <p><var>key</var> defaults to GCC version number, and can be overridden by the
! <samp>--enable-win32-registry=<var>key</var></samp> option.  Vendors and distributors
  who use custom installers are encouraged to provide a different key,
  perhaps one comprised of vendor name and GCC version number, to
  avoid conflict with existing installations.  This feature is enabled
! by default, and can be disabled by <samp>--disable-win32-registry</samp>
  option.  This option has no effect on the other hosts.
! </p>
! </dd>
! <dt><code>--nfp</code></dt>
! <dd><p>Specify that the machine does not have a floating point unit.  This
! option only applies to &lsquo;<samp>m68k-sun-sunos<var>n</var></samp>&rsquo;.  On any other
! system, <samp>--nfp</samp> has no effect.
! </p>
! </dd>
! <dt><code>--enable-werror</code></dt>
! <dt><code>--disable-werror</code></dt>
! <dt><code>--enable-werror=yes</code></dt>
! <dt><code>--enable-werror=no</code></dt>
! <dd><p>When you specify this option, it controls whether certain files in the
! compiler are built with <samp>-Werror</samp> in bootstrap stage2 and later.
! If you don&rsquo;t specify it, <samp>-Werror</samp> is turned on for the main
  development trunk.  However it defaults to off for release branches and
! final releases.  The specific files which get <samp>-Werror</samp> are
  controlled by the Makefiles.
! </p>
! </dd>
! <dt><code>--enable-checking</code></dt>
! <dt><code>--enable-checking=<var>list</var></code></dt>
! <dd><p>When you specify this option, the compiler is built to perform internal
  consistency checks of the requested complexity.  This does not change the
  generated code, but adds error checking within the compiler.  This will
  slow down the compiler and may only work properly if you are building
! the compiler with GCC.  This is &lsquo;<samp>yes</samp>&rsquo; by default when building
! from SVN or snapshots, but &lsquo;<samp>release</samp>&rsquo; for releases.  The default
! for building the stage1 compiler is &lsquo;<samp>yes</samp>&rsquo;.  More control
  over the checks may be had by specifying <var>list</var>.  The categories of
! checks available are &lsquo;<samp>yes</samp>&rsquo; (most common checks
! &lsquo;<samp>assert,misc,tree,gc,rtlflag,runtime</samp>&rsquo;), &lsquo;<samp>no</samp>&rsquo; (no checks at
! all), &lsquo;<samp>all</samp>&rsquo; (all but &lsquo;<samp>valgrind</samp>&rsquo;), &lsquo;<samp>release</samp>&rsquo; (cheapest
! checks &lsquo;<samp>assert,runtime</samp>&rsquo;) or &lsquo;<samp>none</samp>&rsquo; (same as &lsquo;<samp>no</samp>&rsquo;).
! Individual checks can be enabled with these flags &lsquo;<samp>assert</samp>&rsquo;,
! &lsquo;<samp>df</samp>&rsquo;, &lsquo;<samp>fold</samp>&rsquo;, &lsquo;<samp>gc</samp>&rsquo;, &lsquo;<samp>gcac</samp>&rsquo; &lsquo;<samp>misc</samp>&rsquo;, &lsquo;<samp>rtl</samp>&rsquo;,
! &lsquo;<samp>rtlflag</samp>&rsquo;, &lsquo;<samp>runtime</samp>&rsquo;, &lsquo;<samp>tree</samp>&rsquo;, and &lsquo;<samp>valgrind</samp>&rsquo;.
! </p>
! <p>The &lsquo;<samp>valgrind</samp>&rsquo; check requires the external <code>valgrind</code>
  simulator, available from <a href="http://valgrind.org/">http://valgrind.org/</a>.  The
! &lsquo;<samp>df</samp>&rsquo;, &lsquo;<samp>rtl</samp>&rsquo;, &lsquo;<samp>gcac</samp>&rsquo; and &lsquo;<samp>valgrind</samp>&rsquo; checks are very expensive.
! To disable all checking, &lsquo;<samp>--disable-checking</samp>&rsquo; or
! &lsquo;<samp>--enable-checking=none</samp>&rsquo; must be explicitly requested.  Disabling
  assertions will make the compiler and runtime slightly faster but
  increase the risk of undetected internal errors causing wrong code to be
  generated.
! </p>
! </dd>
! <dt><code>--disable-stage1-checking</code></dt>
! <dt><code>--enable-stage1-checking</code></dt>
! <dt><code>--enable-stage1-checking=<var>list</var></code></dt>
! <dd><p>If no <samp>--enable-checking</samp> option is specified the stage1
! compiler will be built with &lsquo;<samp>yes</samp>&rsquo; checking enabled, otherwise
  the stage1 checking flags are the same as specified by
! <samp>--enable-checking</samp>.  To build the stage1 compiler with
! different checking options use <samp>--enable-stage1-checking</samp>.
! The list of checking options is the same as for <samp>--enable-checking</samp>.
  If your system is too slow or too small to bootstrap a released compiler
! with checking for stage1 enabled, you can use &lsquo;<samp>--disable-stage1-checking</samp>&rsquo;
  to disable checking for the stage1 compiler.
! </p>
! </dd>
! <dt><code>--enable-coverage</code></dt>
! <dt><code>--enable-coverage=<var>level</var></code></dt>
! <dd><p>With this option, the compiler is built to collect self coverage
  information, every time it is run.  This is for internal development
  purposes, and only works when the compiler is being built with gcc.  The
  <var>level</var> argument controls whether the compiler is built optimized or
! not, values are &lsquo;<samp>opt</samp>&rsquo; and &lsquo;<samp>noopt</samp>&rsquo;.  For coverage analysis you
  want to disable optimization, for performance analysis you want to
  enable optimization.  When coverage is enabled, the default level is
  without optimization.
! </p>
! </dd>
! <dt><code>--enable-gather-detailed-mem-stats</code></dt>
! <dd><p>When this option is specified more detailed information on memory
  allocation is gathered.  This information is printed when using
! <samp>-fmem-report</samp>.
! </p>
! </dd>
! <dt><code>--enable-valgrind-annotations</code></dt>
! <dd><p>Mark selected memory related operations in the compiler when run under
  valgrind to suppress false positives.
! </p>
! </dd>
! <dt><code>--enable-nls</code></dt>
! <dt><code>--disable-nls</code></dt>
! <dd><p>The <samp>--enable-nls</samp> option enables Native Language Support (NLS),
  which lets GCC output diagnostics in languages other than American
  English.  Native Language Support is enabled by default if not doing a
! canadian cross build.  The <samp>--disable-nls</samp> option disables NLS.
! </p>
! </dd>
! <dt><code>--with-included-gettext</code></dt>
! <dd><p>If NLS is enabled, the <samp>--with-included-gettext</samp> option causes the build
! procedure to prefer its copy of GNU <code>gettext</code>.
! </p>
! </dd>
! <dt><code>--with-catgets</code></dt>
! <dd><p>If NLS is enabled, and if the host lacks <code>gettext</code> but has the
  inferior <code>catgets</code> interface, the GCC build procedure normally
! ignores <code>catgets</code> and instead uses GCC&rsquo;s copy of the GNU
! <code>gettext</code> library.  The <samp>--with-catgets</samp> option causes the
! build procedure to use the host&rsquo;s <code>catgets</code> in this situation.
! </p>
! </dd>
! <dt><code>--with-libiconv-prefix=<var>dir</var></code></dt>
! <dd><p>Search for libiconv header files in <samp><var>dir</var>/include</samp> and
! libiconv library files in <samp><var>dir</var>/lib</samp>.
! </p>
! </dd>
! <dt><code>--enable-obsolete</code></dt>
! <dd><p>Enable configuration for an obsoleted system.  If you attempt to
  configure GCC for a system (build, host, or target) which has been
  obsoleted, and you do not specify this flag, configure will halt with an
  error message.
! </p>
! <p>All support for systems which have been obsoleted in one release of GCC
  is removed entirely in the next major release, unless someone steps
  forward to maintain the port.
! </p>
! </dd>
! <dt><code>--enable-decimal-float</code></dt>
! <dt><code>--enable-decimal-float=yes</code></dt>
! <dt><code>--enable-decimal-float=no</code></dt>
! <dt><code>--enable-decimal-float=bid</code></dt>
! <dt><code>--enable-decimal-float=dpd</code></dt>
! <dt><code>--disable-decimal-float</code></dt>
! <dd><p>Enable (or disable) support for the C decimal floating point extension
  that is in the IEEE 754-2008 standard.  This is enabled by default only
  on PowerPC, i386, and x86_64 GNU/Linux systems.  Other systems may also
  support it, but require the user to specifically enable it.  You can
  optionally control which decimal floating point format is used (either
! &lsquo;<samp>bid</samp>&rsquo; or &lsquo;<samp>dpd</samp>&rsquo;).  The &lsquo;<samp>bid</samp>&rsquo; (binary integer decimal)
! format is default on i386 and x86_64 systems, and the &lsquo;<samp>dpd</samp>&rsquo;
  (densely packed decimal) format is default on PowerPC systems.
! </p>
! </dd>
! <dt><code>--enable-fixed-point</code></dt>
! <dt><code>--disable-fixed-point</code></dt>
! <dd><p>Enable (or disable) support for C fixed-point arithmetic.
  This option is enabled by default for some targets (such as MIPS) which
  have hardware-support for fixed-point operations.  On other targets, you
  may enable this option manually.
! </p>
! </dd>
! <dt><code>--with-long-double-128</code></dt>
! <dd><p>Specify if <code>long double</code> type should be 128-bit by default on selected
  GNU/Linux architectures.  If using <code>--without-long-double-128</code>,
! <code>long double</code> will be by default 64-bit, the same as <code>double</code> type.
  When neither of these configure options are used, the default will be
  128-bit <code>long double</code> when built against GNU C Library 2.4 and later,
  64-bit <code>long double</code> otherwise.
! </p>
! </dd>
! <dt><code>--enable-fdpic</code></dt>
! <dd><p>On SH Linux systems, generate ELF FDPIC code.
! </p>
! </dd>
! <dt><code>--with-gmp=<var>pathname</var></code></dt>
! <dt><code>--with-gmp-include=<var>pathname</var></code></dt>
! <dt><code>--with-gmp-lib=<var>pathname</var></code></dt>
! <dt><code>--with-mpfr=<var>pathname</var></code></dt>
! <dt><code>--with-mpfr-include=<var>pathname</var></code></dt>
! <dt><code>--with-mpfr-lib=<var>pathname</var></code></dt>
! <dt><code>--with-mpc=<var>pathname</var></code></dt>
! <dt><code>--with-mpc-include=<var>pathname</var></code></dt>
! <dt><code>--with-mpc-lib=<var>pathname</var></code></dt>
! <dd><p>If you want to build GCC but do not have the GMP library, the MPFR
  library and/or the MPC library installed in a standard location and
  do not have their sources present in the GCC source tree then you
  can explicitly specify the directory where they are installed
! (&lsquo;<samp>--with-gmp=<var>gmpinstalldir</var></samp>&rsquo;,
! &lsquo;<samp>--with-mpfr=<var>mpfrinstalldir</var></samp>&rsquo;,
! &lsquo;<samp>--with-mpc=<var>mpcinstalldir</var></samp>&rsquo;).  The
! <samp>--with-gmp=<var>gmpinstalldir</var></samp> option is shorthand for
! <samp>--with-gmp-lib=<var>gmpinstalldir</var>/lib</samp> and
! <samp>--with-gmp-include=<var>gmpinstalldir</var>/include</samp>.  Likewise the
! <samp>--with-mpfr=<var>mpfrinstalldir</var></samp> option is shorthand for
! <samp>--with-mpfr-lib=<var>mpfrinstalldir</var>/lib</samp> and
! <samp>--with-mpfr-include=<var>mpfrinstalldir</var>/include</samp>, also the
! <samp>--with-mpc=<var>mpcinstalldir</var></samp> option is shorthand for
! <samp>--with-mpc-lib=<var>mpcinstalldir</var>/lib</samp> and
! <samp>--with-mpc-include=<var>mpcinstalldir</var>/include</samp>.  If these
  shorthand assumptions are not correct, you can use the explicit
  include and lib options directly.  You might also need to ensure the
  shared libraries can be found by the dynamic linker when building and
  using GCC, for example by setting the runtime shared library path
! variable (<code>LD_LIBRARY_PATH</code> on GNU/Linux and Solaris systems).
! </p>
! <p>These flags are applicable to the host platform only.  When building
  a cross compiler, they will not be used to configure target libraries.
! </p>
! </dd>
! <dt><code>--with-isl=<var>pathname</var></code></dt>
! <dt><code>--with-isl-include=<var>pathname</var></code></dt>
! <dt><code>--with-isl-lib=<var>pathname</var></code></dt>
! <dd><p>If you do not have the isl library installed in a standard location and you
  want to build GCC, you can explicitly specify the directory where it is
! installed (&lsquo;<samp>--with-isl=<var>islinstalldir</var></samp>&rsquo;). The
! <samp>--with-isl=<var>islinstalldir</var></samp> option is shorthand for
! <samp>--with-isl-lib=<var>islinstalldir</var>/lib</samp> and
! <samp>--with-isl-include=<var>islinstalldir</var>/include</samp>. If this
  shorthand assumption is not correct, you can use the explicit
  include and lib options directly.
! </p>
! <p>These flags are applicable to the host platform only.  When building
  a cross compiler, they will not be used to configure target libraries.
! </p>
! </dd>
! <dt><code>--with-stage1-ldflags=<var>flags</var></code></dt>
! <dd><p>This option may be used to set linker flags to be used when linking
  stage 1 of GCC.  These are also used when linking GCC if configured with
! <samp>--disable-bootstrap</samp>.  If <samp>--with-stage1-libs</samp> is not set to a
! value, then the default is &lsquo;<samp>-static-libstdc++ -static-libgcc</samp>&rsquo;, if
  supported.
! </p>
! </dd>
! <dt><code>--with-stage1-libs=<var>libs</var></code></dt>
! <dd><p>This option may be used to set libraries to be used when linking stage 1
  of GCC.  These are also used when linking GCC if configured with
! <samp>--disable-bootstrap</samp>.
! </p>
! </dd>
! <dt><code>--with-boot-ldflags=<var>flags</var></code></dt>
! <dd><p>This option may be used to set linker flags to be used when linking
  stage 2 and later when bootstrapping GCC.  If &ndash;with-boot-libs
  is not is set to a value, then the default is
! &lsquo;<samp>-static-libstdc++ -static-libgcc</samp>&rsquo;.
! </p>
! </dd>
! <dt><code>--with-boot-libs=<var>libs</var></code></dt>
! <dd><p>This option may be used to set libraries to be used when linking stage 2
  and later when bootstrapping GCC.
! </p>
! </dd>
! <dt><code>--with-debug-prefix-map=<var>map</var></code></dt>
! <dd><p>Convert source directory names using <samp>-fdebug-prefix-map</samp> when
  building runtime libraries.  &lsquo;<samp><var>map</var></samp>&rsquo; is a space-separated
! list of maps of the form &lsquo;<samp><var>old</var>=<var>new</var></samp>&rsquo;.
! </p>
! </dd>
! <dt><code>--enable-linker-build-id</code></dt>
! <dd><p>Tells GCC to pass <samp>--build-id</samp> option to the linker for all final
! links (links performed without the <samp>-r</samp> or <samp>--relocatable</samp>
  option), if the linker supports it.  If you specify
! <samp>--enable-linker-build-id</samp>, but your linker does not
! support <samp>--build-id</samp> option, a warning is issued and the
! <samp>--enable-linker-build-id</samp> option is ignored.  The default is off.
! </p>
! </dd>
! <dt><code>--with-linker-hash-style=<var>choice</var></code></dt>
! <dd><p>Tells GCC to pass <samp>--hash-style=<var>choice</var></samp> option to the
  linker for all final links. <var>choice</var> can be one of
! &lsquo;<samp>sysv</samp>&rsquo;, &lsquo;<samp>gnu</samp>&rsquo;, and &lsquo;<samp>both</samp>&rsquo; where &lsquo;<samp>sysv</samp>&rsquo; is the default.
! </p>
! </dd>
! <dt><code>--enable-gnu-unique-object</code></dt>
! <dt><code>--disable-gnu-unique-object</code></dt>
! <dd><p>Tells GCC to use the gnu_unique_object relocation for C++ template
  static data members and inline function local statics.  Enabled by
  default for a toolchain with an assembler that accepts it and
  GLIBC 2.11 or above, otherwise disabled.
! </p>
! </dd>
! <dt><code>--with-diagnostics-color=<var>choice</var></code></dt>
! <dd><p>Tells GCC to use <var>choice</var> as the default for <samp>-fdiagnostics-color=</samp>
  option (if not used explicitly on the command line).  <var>choice</var>
! can be one of &lsquo;<samp>never</samp>&rsquo;, &lsquo;<samp>auto</samp>&rsquo;, &lsquo;<samp>always</samp>&rsquo;, and &lsquo;<samp>auto-if-env</samp>&rsquo;
! where &lsquo;<samp>auto</samp>&rsquo; is the default.  &lsquo;<samp>auto-if-env</samp>&rsquo; means that
! <samp>-fdiagnostics-color=auto</samp> will be the default if <code>GCC_COLORS</code>
  is present and non-empty in the environment, and
! <samp>-fdiagnostics-color=never</samp> otherwise.
! </p>
! </dd>
! <dt><code>--enable-lto</code></dt>
! <dt><code>--disable-lto</code></dt>
! <dd><p>Enable support for link-time optimization (LTO).  This is enabled by
! default, and may be disabled using <samp>--disable-lto</samp>.
! </p>
! </dd>
! <dt><code>--enable-linker-plugin-configure-flags=FLAGS</code></dt>
! <dt><code>--enable-linker-plugin-flags=FLAGS</code></dt>
! <dd><p>By default, linker plugins (such as the LTO plugin) are built for the
  host system architecture.  For the case that the linker has a
  different (but run-time compatible) architecture, these flags can be
  specified to build plugins that are compatible to the linker.  For
  example, if you are building GCC for a 64-bit x86_64
! (&lsquo;<samp>x86_64-unknown-linux-gnu</samp>&rsquo;) host system, but have a 32-bit x86
! GNU/Linux (&lsquo;<samp>i686-pc-linux-gnu</samp>&rsquo;) linker executable (which is
  executable on the former system), you can configure GCC as follows for
  getting compatible linker plugins:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">% <var>srcdir</var>/configure \
+     --host=x86_64-unknown-linux-gnu \
+     --enable-linker-plugin-configure-flags=--host=i686-pc-linux-gnu \
+     --enable-linker-plugin-flags='CC=gcc\ -m32\ -Wl,-rpath,[...]/i686-pc-linux-gnu/lib'
+ </pre></div>
  
! </dd>
! <dt><code>--with-plugin-ld=<var>pathname</var></code></dt>
! <dd><p>Enable an alternate linker to be used at link-time optimization (LTO)
! link time when <samp>-fuse-linker-plugin</samp> is enabled.
  This linker should have plugin support such as gold starting with
! version 2.20 or GNU ld starting with version 2.21.
! See <samp>-fuse-linker-plugin</samp> for details.
! </p>
! </dd>
! <dt><code>--enable-canonical-system-headers</code></dt>
! <dt><code>--disable-canonical-system-headers</code></dt>
! <dd><p>Enable system header path canonicalization for <samp>libcpp</samp>.  This can
  produce shorter header file paths in diagnostics and dependency output
  files, but these changed header paths may conflict with some compilation
  environments.  Enabled by default, and may be disabled using
! <samp>--disable-canonical-system-headers</samp>.
! </p>
! </dd>
! <dt><code>--with-glibc-version=<var>major</var>.<var>minor</var></code></dt>
! <dd><p>Tell GCC that when the GNU C Library (glibc) is used on the target it
  will be version <var>major</var>.<var>minor</var> or later.  Normally this can
! be detected from the C library&rsquo;s header files, but this option may be
  needed when bootstrapping a cross toolchain without the header files
  available for building the initial bootstrap compiler.
! </p>
! <p>If GCC is configured with some multilibs that use glibc and some that
! do not, this option applies only to the multilibs that use glibc.
  However, such configurations may not work well as not all the relevant
  configuration in GCC is on a per-multilib basis.
! </p>
! </dd>
! <dt><code>--enable-as-accelerator-for=<var>target</var></code></dt>
! <dd><p>Build as offload target compiler. Specify offload host triple by <var>target</var>.
! </p>
! </dd>
! <dt><code>--enable-offload-targets=<var>target1</var>[=<var>path1</var>],&hellip;,<var>targetN</var>[=<var>pathN</var>]</code></dt>
! <dd><p>Enable offloading to targets <var>target1</var>, &hellip;, <var>targetN</var>.
  Offload compilers are expected to be already installed.  Default search
  path for them is <samp><var>exec-prefix</var></samp>, but it can be changed by
! specifying paths <var>path1</var>, &hellip;, <var>pathN</var>.
! </p>
! <div class="smallexample">
! <pre class="smallexample">% <var>srcdir</var>/configure \
!     --enable-offload-target=i686-unknown-linux-gnu=/path/to/i686/compiler,x86_64-pc-linux-gnu
! </pre></div>
  
! <p>If &lsquo;<samp>hsa</samp>&rsquo; is specified as one of the targets, the compiler will be
  built with support for HSA GPU accelerators.  Because the same
  compiler will emit the accelerator code, no path should be specified.
! </p>
! </dd>
! <dt><code>--with-hsa-runtime=<var>pathname</var></code></dt>
! <dt><code>--with-hsa-runtime-include=<var>pathname</var></code></dt>
! <dt><code>--with-hsa-runtime-lib=<var>pathname</var></code></dt>
! <dd>
! <p>If you configure GCC with HSA offloading but do not have the HSA
  run-time library installed in a standard location then you can
  explicitly specify the directory where they are installed.  The
! <samp>--with-hsa-runtime=<var>hsainstalldir</var></samp> option is a
  shorthand for
! <samp>--with-hsa-runtime-lib=<var>hsainstalldir</var>/lib</samp> and
! <samp>--with-hsa-runtime-include=<var>hsainstalldir</var>/include</samp>.
! </p>
! </dd>
! <dt><code>--with-hsa-kmt-lib=<var>pathname</var></code></dt>
! <dd>
! <p>If you configure GCC with HSA offloading but do not have the HSA
  KMT library installed in a standard location then you can
! explicitly specify the directory where it resides.
! </p></dd>
  </dl>
  
! <a name="Cross_002dCompiler_002dSpecific-Options"></a>
! <h4 class="subheading">Cross-Compiler-Specific Options</h4>
  <p>The following options only apply to building cross compilers.
! </p>
! <dl compact="compact">
! <dt><code>--with-sysroot</code></dt>
! <dt><code>--with-sysroot=<var>dir</var></code></dt>
! <dd><p>Tells GCC to consider <var>dir</var> as the root of a tree that contains
! (a subset of) the root filesystem of the target operating system.
  Target system headers, libraries and run-time object files will be
  searched for in there.  More specifically, this acts as if
! <samp>--sysroot=<var>dir</var></samp> was added to the default options of the built
  compiler.  The specified directory is not copied into the
! install tree, unlike the options <samp>--with-headers</samp> and
! <samp>--with-libs</samp> that this option obsoletes.  The default value,
! in case <samp>--with-sysroot</samp> is not given an argument, is
! <samp>${gcc_tooldir}/sys-root</samp>.  If the specified directory is a
! subdirectory of <samp>${exec_prefix}</samp>, then it will be found relative to
  the GCC binaries if the installation tree is moved.
! </p>
! <p>This option affects the system root for the compiler used to build
  target libraries (which runs on the build system) and the compiler newly
  installed with <code>make install</code>; it does not affect the compiler which is
  used to build GCC itself.
! </p>
! <p>If you specify the <samp>--with-native-system-header-dir=<var>dirname</var></samp>
  option then the compiler will search that directory within <var>dirname</var> for
! native system headers rather than the default <samp>/usr/include</samp>.
! </p>
! </dd>
! <dt><code>--with-build-sysroot</code></dt>
! <dt><code>--with-build-sysroot=<var>dir</var></code></dt>
! <dd><p>Tells GCC to consider <var>dir</var> as the system root (see
! <samp>--with-sysroot</samp>) while building target libraries, instead of
! the directory specified with <samp>--with-sysroot</samp>.  This option is
! only useful when you are already using <samp>--with-sysroot</samp>.  You
! can use <samp>--with-build-sysroot</samp> when you are configuring with
! <samp>--prefix</samp> set to a directory that is different from the one in
  which you are installing GCC and your target libraries.
! </p>
! <p>This option affects the system root for the compiler used to build
  target libraries (which runs on the build system); it does not affect
  the compiler which is used to build GCC itself.
! </p>
! <p>If you specify the <samp>--with-native-system-header-dir=<var>dirname</var></samp>
  option then the compiler will search that directory within <var>dirname</var> for
! native system headers rather than the default <samp>/usr/include</samp>.
! </p>
! </dd>
! <dt><code>--with-headers</code></dt>
! <dt><code>--with-headers=<var>dir</var></code></dt>
! <dd><p>Deprecated in favor of <samp>--with-sysroot</samp>.
! Specifies that target headers are available when building a cross compiler.
  The <var>dir</var> argument specifies a directory which has the target include
! files.  These include files will be copied into the <samp>gcc</samp> install
! directory.  <em>This option with the <var>dir</var> argument is required</em> when
! building a cross compiler, if <samp><var>prefix</var>/<var>target</var>/sys-include</samp>
! doesn&rsquo;t pre-exist.  If <samp><var>prefix</var>/<var>target</var>/sys-include</samp> does
! pre-exist, the <var>dir</var> argument may be omitted.  <code>fixincludes</code>
  will be run on these files to make them compatible with GCC.
! </p>
! </dd>
! <dt><code>--without-headers</code></dt>
! <dd><p>Tells GCC not use any target headers from a libc when building a cross
  compiler.  When crossing to GNU/Linux, you need the headers so GCC
  can build the exception handling for libgcc.
! </p>
! </dd>
! <dt><code>--with-libs</code></dt>
! <dt><code>--with-libs=&quot;<var>dir1</var> <var>dir2</var> &hellip; <var>dirN</var>&quot;</code></dt>
! <dd><p>Deprecated in favor of <samp>--with-sysroot</samp>.
  Specifies a list of directories which contain the target runtime
! libraries.  These libraries will be copied into the <samp>gcc</samp> install
  directory.  If the directory list is omitted, this option has no
  effect.
! </p>
! </dd>
! <dt><code>--with-newlib</code></dt>
! <dd><p>Specifies that &lsquo;<samp>newlib</samp>&rsquo; is
  being used as the target C library.  This causes <code>__eprintf</code> to be
! omitted from <samp>libgcc.a</samp> on the assumption that it will be provided by
! &lsquo;<samp>newlib</samp>&rsquo;.
! </p>
! </dd>
! <dt><code>--with-avrlibc</code></dt>
! <dd><p>Specifies that &lsquo;<samp>AVR-Libc</samp>&rsquo; is
  being used as the target C library.  This causes float support
! functions like <code>__addsf3</code> to be omitted from <samp>libgcc.a</samp> on
! the assumption that it will be provided by <samp>libm.a</samp>.  For more
! technical details, cf. <a href="http://gcc.gnu.org/PR54461">PR54461</a>.
  This option is only supported for the AVR target.  It is not supported for
  RTEMS configurations, which currently use newlib.  The option is
  supported since version 4.7.2 and is the default in 4.8.0 and newer.
! </p>
! </dd>
! <dt><code>--with-nds32-lib=<var>library</var></code></dt>
! <dd><p>Specifies that <var>library</var> setting is used for building <samp>libgcc.a</samp>.
! Currently, the valid <var>library</var> is &lsquo;<samp>newlib</samp>&rsquo; or &lsquo;<samp>mculib</samp>&rsquo;.
  This option is only supported for the NDS32 target.
! </p>
! </dd>
! <dt><code>--with-build-time-tools=<var>dir</var></code></dt>
! <dd><p>Specifies where to find the set of target tools (assembler, linker, etc.)
  that will be used while building GCC itself.  This option can be useful
  if the directory layouts are different between the system you are building
  GCC on, and the system where you will deploy it.
! </p>
! <p>For example, on an &lsquo;<samp>ia64-hp-hpux</samp>&rsquo; system, you may have the GNU
! assembler and linker in <samp>/usr/bin</samp>, and the native tools in a
  different path, and build a toolchain that expects to find the
! native tools in <samp>/usr/bin</samp>.
! </p>
! <p>When you use this option, you should ensure that <var>dir</var> includes
! <code>ar</code>, <code>as</code>, <code>ld</code>, <code>nm</code>,
! <code>ranlib</code> and <code>strip</code> if necessary, and possibly
! <code>objdump</code>.  Otherwise, GCC may use an inconsistent set of
! tools.
! </p></dd>
  </dl>
  
! <a name="Overriding-configure-test-results"></a>
! <h4 class="subsubheading">Overriding <code>configure</code> test results</h4>
  
  <p>Sometimes, it might be necessary to override the result of some
! <code>configure</code> test, for example in order to ease porting to a new
! system or work around a bug in a test.  The toplevel <code>configure</code>
  script provides three variables for this:
! </p>
! <dl compact="compact">
! <dt><code>build_configargs</code></dt>
! <dd><a name="index-build_005fconfigargs"></a>
! <p>The contents of this variable is passed to all build <code>configure</code>
  scripts.
! </p>
! </dd>
! <dt><code>host_configargs</code></dt>
! <dd><a name="index-host_005fconfigargs"></a>
! <p>The contents of this variable is passed to all host <code>configure</code>
  scripts.
! </p>
! </dd>
! <dt><code>target_configargs</code></dt>
! <dd><a name="index-target_005fconfigargs"></a>
! <p>The contents of this variable is passed to all target <code>configure</code>
  scripts.
+ </p>
+ </dd>
+ </dl>
  
! <p>In order to avoid shell and <code>make</code> quoting issues for complex
! overrides, you can pass a setting for <code>CONFIG_SITE</code> and set
  variables in the site file.
! </p>
! <a name="Java_002dSpecific-Options"></a>
! <h4 class="subheading">Java-Specific Options</h4>
  
  <p>The following option applies to the build of the Java front end.
! </p>
! <dl compact="compact">
! <dt><code>--disable-libgcj</code></dt>
! <dd><p>Specify that the run-time libraries
  used by GCJ should not be built.  This is useful in case you intend
! to use GCJ with some other run-time, or you&rsquo;re going to install it
  separately, or it just happens not to build on your particular
  machine.  In general, if the Java front end is enabled, the GCJ
! libraries will be enabled too, unless they&rsquo;re known to not work on
! the target platform.  If GCJ is enabled but &lsquo;<samp>libgcj</samp>&rsquo; isn&rsquo;t built, you
  may need to port it; in this case, before modifying the top-level
! <samp>configure.ac</samp> so that &lsquo;<samp>libgcj</samp>&rsquo; is enabled by default on this platform,
! you may use <samp>--enable-libgcj</samp> to override the default.
! </p>
! </dd>
! </dl>
  
! <p>The following options apply to building &lsquo;<samp>libgcj</samp>&rsquo;.
! </p>
! <a name="General-Options"></a>
! <h4 class="subsubheading">General Options</h4>
  
! <dl compact="compact">
! <dt><code>--enable-java-maintainer-mode</code></dt>
! <dd><p>By default the &lsquo;<samp>libjava</samp>&rsquo; build will not attempt to compile the
! <samp>.java</samp> source files to <samp>.class</samp>.  Instead, it will use the
! <samp>.class</samp> files from the source tree.  If you use this option you
! must have executables named <code>ecj1</code> and <code>gjavah</code> in your path
  for use by the build.  You must use this option if you intend to
! modify any <samp>.java</samp> files in <samp>libjava</samp>.
! </p>
! </dd>
! <dt><code>--with-java-home=<var>dirname</var></code></dt>
! <dd><p>This &lsquo;<samp>libjava</samp>&rsquo; option overrides the default value of the
! &lsquo;<samp>java.home</samp>&rsquo; system property.  It is also used to set
! &lsquo;<samp>sun.boot.class.path</samp>&rsquo; to <samp><var>dirname</var>/lib/rt.jar</samp>.  By
! default &lsquo;<samp>java.home</samp>&rsquo; is set to <samp><var>prefix</var></samp> and
! &lsquo;<samp>sun.boot.class.path</samp>&rsquo; to
! <samp><var>datadir</var>/java/libgcj-<var>version</var>.jar</samp>.
! </p>
! </dd>
! <dt><code>--with-ecj-jar=<var>filename</var></code></dt>
! <dd><p>This option can be used to specify the location of an external jar
  file containing the Eclipse Java compiler.  A specially modified
! version of this compiler is used by <code>gcj</code> to parse
! <samp>.java</samp> source files.  If this option is given, the
! &lsquo;<samp>libjava</samp>&rsquo; build will create and install an <samp>ecj1</samp> executable
  which uses this jar file at runtime.
! </p>
! <p>If this option is not given, but an <samp>ecj.jar</samp> file is found in
! the topmost source tree at configure time, then the &lsquo;<samp>libgcj</samp>&rsquo;
! build will create and install <samp>ecj1</samp>, and will also install the
! discovered <samp>ecj.jar</samp> into a suitable place in the install tree.
! </p>
! <p>If <samp>ecj1</samp> is not installed, then the user will have to supply one
! on his path in order for <code>gcj</code> to properly parse <samp>.java</samp>
  source files.  A suitable jar is available from
  <a href="ftp://sourceware.org/pub/java/">ftp://sourceware.org/pub/java/</a>.
! </p>
! </dd>
! <dt><code>--disable-getenv-properties</code></dt>
! <dd><p>Don&rsquo;t set system properties from <code>GCJ_PROPERTIES</code>.
! </p>
! </dd>
! <dt><code>--enable-hash-synchronization</code></dt>
! <dd><p>Use a global hash table for monitor locks.  Ordinarily,
! &lsquo;<samp>libgcj</samp>&rsquo;&rsquo;s &lsquo;<samp>configure</samp>&rsquo; script automatically makes
  the correct choice for this option for your platform.  Only use
  this if you know you need the library to be configured differently.
! </p>
! </dd>
! <dt><code>--enable-interpreter</code></dt>
! <dd><p>Enable the Java interpreter.  The interpreter is automatically
  enabled by default on all platforms that support it.  This option
  is really only useful if you want to disable the interpreter
! (using <samp>--disable-interpreter</samp>).
! </p>
! </dd>
! <dt><code>--disable-java-net</code></dt>
! <dd><p>Disable java.net.  This disables the native part of java.net only,
  using non-functional stubs for native method implementations.
! </p>
! </dd>
! <dt><code>--disable-jvmpi</code></dt>
! <dd><p>Disable JVMPI support.
! </p>
! </dd>
! <dt><code>--disable-libgcj-bc</code></dt>
! <dd><p>Disable BC ABI compilation of certain parts of libgcj.  By default,
! some portions of libgcj are compiled with <samp>-findirect-dispatch</samp>
! and <samp>-fno-indirect-classes</samp>, allowing them to be overridden at
  run-time.
! </p>
! <p>If <samp>--disable-libgcj-bc</samp> is specified, libgcj is built without
  these options.  This allows the compile-time linker to resolve
  dependencies when statically linking to libgcj.  However it makes it
  impossible to override the affected portions of libgcj at run-time.
! </p>
! </dd>
! <dt><code>--enable-reduced-reflection</code></dt>
! <dd><p>Build most of libgcj with <samp>-freduced-reflection</samp>.  This reduces
  the size of libgcj at the expense of not being able to do accurate
  reflection on the classes it contains.  This option is safe if you
  know that code using libgcj will never use reflection on the standard
  runtime classes in libgcj (including using serialization, RMI or CORBA).
! </p>
! </dd>
! <dt><code>--with-ecos</code></dt>
! <dd><p>Enable runtime eCos target support.
! </p>
! </dd>
! <dt><code>--without-libffi</code></dt>
! <dd><p>Don&rsquo;t use &lsquo;<samp>libffi</samp>&rsquo;.  This will disable the interpreter and JNI
! support as well, as these require &lsquo;<samp>libffi</samp>&rsquo; to work.
! </p>
! </dd>
! <dt><code>--enable-libgcj-debug</code></dt>
! <dd><p>Enable runtime debugging code.
! </p>
! </dd>
! <dt><code>--enable-libgcj-multifile</code></dt>
! <dd><p>If specified, causes all <samp>.java</samp> source files to be
! compiled into <samp>.class</samp> files in one invocation of
! &lsquo;<samp>gcj</samp>&rsquo;.  This can speed up build time, but is more
  resource-intensive.  If this option is unspecified or
! disabled, &lsquo;<samp>gcj</samp>&rsquo; is invoked once for each <samp>.java</samp>
! file to compile into a <samp>.class</samp> file.
! </p>
! </dd>
! <dt><code>--with-libiconv-prefix=DIR</code></dt>
! <dd><p>Search for libiconv in <samp>DIR/include</samp> and <samp>DIR/lib</samp>.
! </p>
! </dd>
! <dt><code>--with-system-zlib</code></dt>
! <dd><p>Use installed &lsquo;<samp>zlib</samp>&rsquo; rather than that included with GCC.
! </p>
! </dd>
! <dt><code>--with-win32-nlsapi=ansi, unicows or unicode</code></dt>
! <dd><p>Indicates how MinGW &lsquo;<samp>libgcj</samp>&rsquo; translates between UNICODE
  characters and the Win32 API.
! </p>
! </dd>
! <dt><code>--enable-java-home</code></dt>
! <dd><p>If enabled, this creates a JPackage compatible SDK environment during install.
  Note that if &ndash;enable-java-home is used, &ndash;with-arch-directory=ARCH must also
  be specified.
! </p>
! </dd>
! <dt><code>--with-arch-directory=ARCH</code></dt>
! <dd><p>Specifies the name to use for the <samp>jre/lib/ARCH</samp> directory in the SDK
  environment created when &ndash;enable-java-home is passed. Typical names for this
  directory include i386, amd64, ia64, etc.
! </p>
! </dd>
! <dt><code>--with-os-directory=DIR</code></dt>
! <dd><p>Specifies the OS directory for the SDK include directory. This is set to auto
! detect, and is typically &rsquo;linux&rsquo;.
! </p>
! </dd>
! <dt><code>--with-origin-name=NAME</code></dt>
! <dd><p>Specifies the JPackage origin name. This defaults to the &rsquo;gcj&rsquo; in
  java-1.5.0-gcj.
! </p>
! </dd>
! <dt><code>--with-arch-suffix=SUFFIX</code></dt>
! <dd><p>Specifies the suffix for the sdk directory. Defaults to the empty string.
! Examples include &rsquo;.x86_64&rsquo; in &rsquo;java-1.5.0-gcj-1.5.0.0.x86_64&rsquo;.
! </p>
! </dd>
! <dt><code>--with-jvm-root-dir=DIR</code></dt>
! <dd><p>Specifies where to install the SDK. Default is $(prefix)/lib/jvm.
! </p>
! </dd>
! <dt><code>--with-jvm-jar-dir=DIR</code></dt>
! <dd><p>Specifies where to install jars. Default is $(prefix)/lib/jvm-exports.
! </p>
! </dd>
! <dt><code>--with-python-dir=DIR</code></dt>
! <dd><p>Specifies where to install the Python modules used for aot-compile. DIR should
  not include the prefix used in installation. For example, if the Python modules
  are to be installed in /usr/lib/python2.5/site-packages, then
  &ndash;with-python-dir=/lib/python2.5/site-packages should be passed. If this is
  not specified, then the Python modules are installed in $(prefix)/share/python.
! </p>
! </dd>
! <dt><code>--enable-aot-compile-rpm</code></dt>
! <dd><p>Adds aot-compile-rpm to the list of installed scripts.
! </p>
! </dd>
! <dt><code>--enable-browser-plugin</code></dt>
! <dd><p>Build the gcjwebplugin web browser plugin.
! </p>
! </dd>
! <dt><code>--enable-static-libjava</code></dt>
! <dd><p>Build static libraries in libjava. The default is to only build shared
  libraries.
! </p>
! <dl compact="compact">
! <dt><code>ansi</code></dt>
! <dd><p>Use the single-byte <code>char</code> and the Win32 A functions natively,
  translating to and from UNICODE when using these functions.  If
  unspecified, this is the default.
! </p>
! </dd>
! <dt><code>unicows</code></dt>
! <dd><p>Use the <code>WCHAR</code> and Win32 W functions natively.  Adds
! <code>-lunicows</code> to <samp>libgcj.spec</samp> to link with &lsquo;<samp>libunicows</samp>&rsquo;.
! <samp>unicows.dll</samp> needs to be deployed on Microsoft Windows 9X machines
! running built executables.  <samp>libunicows.a</samp>, an open-source
! import library around Microsoft&rsquo;s <code>unicows.dll</code>, is obtained from
  <a href="http://libunicows.sourceforge.net/">http://libunicows.sourceforge.net/</a>, which also gives details
! on getting <samp>unicows.dll</samp> from Microsoft.
! </p>
! </dd>
! <dt><code>unicode</code></dt>
! <dd><p>Use the <code>WCHAR</code> and Win32 W functions natively.  Does <em>not</em>
! add <code>-lunicows</code> to <samp>libgcj.spec</samp>.  The built executables will
! only run on Microsoft Windows NT and above.
! </p></dd>
! </dl>
! </dd>
  </dl>
  
! <a name="AWT_002dSpecific-Options"></a>
! <h4 class="subsubheading">AWT-Specific Options</h4>
  
! <dl compact="compact">
! <dt><code>--with-x</code></dt>
! <dd><p>Use the X Window System.
! </p>
! </dd>
! <dt><code>--enable-java-awt=PEER(S)</code></dt>
! <dd><p>Specifies the AWT peer library or libraries to build alongside
! &lsquo;<samp>libgcj</samp>&rsquo;.  If this option is unspecified or disabled, AWT
! will be non-functional.  Current valid values are <samp>gtk</samp> and
! <samp>xlib</samp>.  Multiple libraries should be separated by a
! comma (i.e. <samp>--enable-java-awt=gtk,xlib</samp>).
! </p>
! </dd>
! <dt><code>--enable-gtk-cairo</code></dt>
! <dd><p>Build the cairo Graphics2D implementation on GTK.
! </p>
! </dd>
! <dt><code>--enable-java-gc=TYPE</code></dt>
! <dd><p>Choose garbage collector.  Defaults to <samp>boehm</samp> if unspecified.
! </p>
! </dd>
! <dt><code>--disable-gtktest</code></dt>
! <dd><p>Do not try to compile and run a test GTK+ program.
! </p>
! </dd>
! <dt><code>--disable-glibtest</code></dt>
! <dd><p>Do not try to compile and run a test GLIB program.
! </p>
! </dd>
! <dt><code>--with-libart-prefix=PFX</code></dt>
! <dd><p>Prefix where libart is installed (optional).
! </p>
! </dd>
! <dt><code>--with-libart-exec-prefix=PFX</code></dt>
! <dd><p>Exec prefix where libart is installed (optional).
! </p>
! </dd>
! <dt><code>--disable-libarttest</code></dt>
! <dd><p>Do not try to compile and run a test libart program.
! </p>
! </dd>
! </dl>
  
  
! <hr />
! <p>
! <p><a href="./index.html">Return to the GCC Installation page</a>
! </p>
! 
  
  
  
  
  
  
  
  
  
  
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/download.html gcc-6.5.0/INSTALL/download.html
*** gcc-6.4.0/INSTALL/download.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/download.html	Fri Oct 26 09:56:38 2018
***************
*** 1,90 ****
! <html lang="en">
! <head>
! <title>Downloading GCC</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Downloading GCC">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
!   pre.smalldisplay { font-family:inherit; font-size:smaller }
!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
- <body>
- <h1 class="settitle">Downloading GCC</h1>
- <a name="index-Downloading-GCC-1"></a><a name="index-Downloading-the-Source-2"></a>
- GCC is distributed via <a href="http://gcc.gnu.org/svn.html">SVN</a> and FTP
- tarballs compressed with <samp><span class="command">gzip</span></samp> or
- <samp><span class="command">bzip2</span></samp>.
  
!    <p>Please refer to the <a href="http://gcc.gnu.org/releases.html">releases web page</a>
! for information on how to obtain GCC.
  
!    <p>The source distribution includes the C, C++, Objective-C, Fortran, Java,
  and Ada (in the case of GCC 3.1 and later) compilers, as well as
! runtime libraries for C++, Objective-C, Fortran, and Java. 
  For previous versions these were downloadable as separate components such
  as the core GCC distribution, which included the C language front end and
  shared components, and language-specific distributions including the
  language front end and the language runtime (where appropriate).
! 
!    <p>If you also intend to build binutils (either to upgrade an existing
  installation or for use in place of the corresponding tools of your
  OS), unpack the binutils distribution either in the same directory or
  a separate one.  In the latter case, add symbolic links to any
  components of the binutils you intend to build alongside the compiler
! (<samp><span class="file">bfd</span></samp>, <samp><span class="file">binutils</span></samp>, <samp><span class="file">gas</span></samp>, <samp><span class="file">gprof</span></samp>, <samp><span class="file">ld</span></samp>,
! <samp><span class="file">opcodes</span></samp>, <small class="dots">...</small>) to the directory containing the GCC sources.
! 
!    <p>Likewise the GMP, MPFR and MPC libraries can be automatically built
  together with GCC.  You may simply run the
! <samp><span class="command">contrib/download_prerequisites</span></samp> script in the GCC source directory
! to set up everything. 
  Otherwise unpack the GMP, MPFR and/or MPC source
  distributions in the directory containing the GCC sources and rename
! their directories to <samp><span class="file">gmp</span></samp>, <samp><span class="file">mpfr</span></samp> and <samp><span class="file">mpc</span></samp>,
  respectively (or use symbolic links with the same name).
! 
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***Configuration*********************************************************** -->
- <!-- ***Building**************************************************************** -->
- <!-- ***Testing***************************************************************** -->
- <!-- ***Final install*********************************************************** -->
- <!-- ***Binaries**************************************************************** -->
- <!-- ***Specific**************************************************************** -->
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 1,135 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
! <meta name="keywords" content="Installing GCC">
! <meta name="resource-type" content="document">
! <meta name="distribution" content="global">
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! <style type="text/css">
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! div.display {margin-left: 3.2em}
! div.example {margin-left: 3.2em}
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! div.smalldisplay {margin-left: 3.2em}
! div.smallexample {margin-left: 3.2em}
! div.smalllisp {margin-left: 3.2em}
! kbd {font-style: oblique}
! pre.display {font-family: inherit}
! pre.format {font-family: inherit}
! pre.menu-comment {font-family: serif}
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! -->
! </style>
! 
! 
  </head>
  
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
  
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Downloading-GCC"></a>
! <a name="index-Downloading-the-Source"></a>
! 
! <p>GCC is distributed via <a href="http://gcc.gnu.org/svn.html">SVN</a> and FTP
! tarballs compressed with <code>gzip</code> or
! <code>bzip2</code>.
! </p>
! <p>Please refer to the <a href="http://gcc.gnu.org/releases.html">releases web page</a>
! for information on how to obtain GCC.
! </p>
! <p>The source distribution includes the C, C++, Objective-C, Fortran, Java,
  and Ada (in the case of GCC 3.1 and later) compilers, as well as
! runtime libraries for C++, Objective-C, Fortran, and Java.
  For previous versions these were downloadable as separate components such
  as the core GCC distribution, which included the C language front end and
  shared components, and language-specific distributions including the
  language front end and the language runtime (where appropriate).
! </p>
! <p>If you also intend to build binutils (either to upgrade an existing
  installation or for use in place of the corresponding tools of your
  OS), unpack the binutils distribution either in the same directory or
  a separate one.  In the latter case, add symbolic links to any
  components of the binutils you intend to build alongside the compiler
! (<samp>bfd</samp>, <samp>binutils</samp>, <samp>gas</samp>, <samp>gprof</samp>, <samp>ld</samp>,
! <samp>opcodes</samp>, &hellip;) to the directory containing the GCC sources.
! </p>
! <p>Likewise the GMP, MPFR and MPC libraries can be automatically built
  together with GCC.  You may simply run the
! <code>contrib/download_prerequisites</code> script in the GCC source directory
! to set up everything.
  Otherwise unpack the GMP, MPFR and/or MPC source
  distributions in the directory containing the GCC sources and rename
! their directories to <samp>gmp</samp>, <samp>mpfr</samp> and <samp>mpc</samp>,
  respectively (or use symbolic links with the same name).
! </p>
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
  
  
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/finalinstall.html gcc-6.5.0/INSTALL/finalinstall.html
*** gcc-6.4.0/INSTALL/finalinstall.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/finalinstall.html	Fri Oct 26 09:56:38 2018
***************
*** 1,172 ****
! <html lang="en">
! <head>
! <title>Installing GCC: Final installation</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC: Final installation">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
!   pre.smalldisplay { font-family:inherit; font-size:smaller }
!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
! <body>
! <h1 class="settitle">Installing GCC: Final installation</h1>
! Now that GCC has been built (and optionally tested), you can install it with
! <pre class="smallexample">     cd <var>objdir</var> &amp;&amp; make install
! </pre>
!    <p>We strongly recommend to install into a target directory where there is
  no previous version of GCC present.  Also, the GNAT runtime should not
  be stripped, as this would break certain features of the debugger that
  depend on this debugging information (catching Ada exceptions for
  instance).
! 
!    <p>That step completes the installation of GCC; user level binaries can
! be found in <samp><var>prefix</var><span class="file">/bin</span></samp> where <var>prefix</var> is the value
! you specified with the <samp><span class="option">--prefix</span></samp> to configure (or
! <samp><span class="file">/usr/local</span></samp> by default).  (If you specified <samp><span class="option">--bindir</span></samp>,
  that directory will be used instead; otherwise, if you specified
! <samp><span class="option">--exec-prefix</span></samp>, <samp><var>exec-prefix</var><span class="file">/bin</span></samp> will be used.) 
  Headers for the C++ and Java libraries are installed in
! <samp><var>prefix</var><span class="file">/include</span></samp>; libraries in <samp><var>libdir</var></samp>
! (normally <samp><var>prefix</var><span class="file">/lib</span></samp>); internal parts of the compiler in
! <samp><var>libdir</var><span class="file">/gcc</span></samp> and <samp><var>libexecdir</var><span class="file">/gcc</span></samp>; documentation
  in info format in <samp><var>infodir</var></samp> (normally
! <samp><var>prefix</var><span class="file">/info</span></samp>).
! 
!    <p>When installing cross-compilers, GCC's executables
  are not only installed into <samp><var>bindir</var></samp>, that
! is, <samp><var>exec-prefix</var><span class="file">/bin</span></samp>, but additionally into
! <samp><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span></samp>, if that directory
! exists.  Typically, such <dfn>tooldirs</dfn> hold target-specific
  binutils, including assembler and linker.
! 
!    <p>Installation into a temporary staging area or into a <samp><span class="command">chroot</span></samp>
  jail can be achieved with the command
  
! <pre class="smallexample">     make DESTDIR=<var>path-to-rootdir</var> install
! </pre>
!    <p class="noindent">where <var>path-to-rootdir</var> is the absolute path of
  a directory relative to which all installation paths will be
  interpreted.  Note that the directory specified by <code>DESTDIR</code>
  need not exist yet; it will be created if necessary.
! 
!    <p>There is a subtle point with tooldirs and <code>DESTDIR</code>:
  If you relocate a cross-compiler installation with
! e.g. &lsquo;<samp><span class="samp">DESTDIR=</span><var>rootdir</var></samp>&rsquo;, then the directory
! <samp><var>rootdir</var><span class="file">/</span><var>exec-prefix</var><span class="file">/</span><var>target-alias</var><span class="file">/bin</span></samp> will
  be filled with duplicated GCC executables only if it already exists,
  it will not be created otherwise.  This is regarded as a feature,
  not as a bug, because it gives slightly more control to the packagers
  using the <code>DESTDIR</code> feature.
  
!    <p>You can install stripped programs and libraries with
! 
! <pre class="smallexample">     make install-strip
! </pre>
!    <p>If you are bootstrapping a released version of GCC then please
  quickly review the build status page for your release, available from
! <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>. 
  If your system is not listed for the version of GCC that you built,
  send a note to
  <a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> indicating
! that you successfully built and installed GCC. 
  Include the following information:
! 
!      <ul>
! <li>Output from running <samp><var>srcdir</var><span class="file">/config.guess</span></samp>.  Do not send
  that file itself, just the one-line output from running it.
  
!      <li>The output of &lsquo;<samp><span class="samp">gcc -v</span></samp>&rsquo; for your newly installed <samp><span class="command">gcc</span></samp>. 
  This tells us which version of GCC you built and the options you passed to
  configure.
  
!      <li>Whether you enabled all languages or a subset of them.  If you used a
  full distribution then this information is part of the configure
! options in the output of &lsquo;<samp><span class="samp">gcc -v</span></samp>&rsquo;, but if you downloaded the
! &ldquo;core&rdquo; compiler plus additional front ends then it isn't apparent
  which ones you built unless you tell us about it.
  
!      <li>If the build was for GNU/Linux, also include:
!           <ul>
! <li>The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3);
! this information should be available from <samp><span class="file">/etc/issue</span></samp>.
  
!           <li>The version of the Linux kernel, available from &lsquo;<samp><span class="samp">uname --version</span></samp>&rsquo;
! or &lsquo;<samp><span class="samp">uname -a</span></samp>&rsquo;.
  
!           <li>The version of glibc you used; for RPM-based systems like Red Hat,
! Mandrake, and SuSE type &lsquo;<samp><span class="samp">rpm -q glibc</span></samp>&rsquo; to get the glibc version,
! and on systems like Debian and Progeny use &lsquo;<samp><span class="samp">dpkg -l libc6</span></samp>&rsquo;. 
! </ul>
!      For other systems, you can include similar information if you think it is
  relevant.
! 
!      <li>Any other information that you think would be useful to people building
  GCC on the same configuration.  The new entry in the build status list
! will include a link to the archived copy of your message. 
! </ul>
  
!    <p>We'd also like to know if the
  <a href="specific.html">host/target specific installation notes</a>
! didn't include your host/target information or if that information is
  incomplete or out of date.  Send a note to
  <a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> detailing how the information should be changed.
! 
!    <p>If you find a bug, please report it following the
  <a href="../bugs/">bug reporting guidelines</a>.
! 
!    <p>If you want to print the GCC manuals, do &lsquo;<samp><span class="samp">cd </span><var>objdir</var><span class="samp">; make
! dvi</span></samp>&rsquo;.  You will need to have <samp><span class="command">texi2dvi</span></samp> (version at least 4.7)
! and TeX installed.  This creates a number of <samp><span class="file">.dvi</span></samp> files in
  subdirectories of <samp><var>objdir</var></samp>; these may be converted for
! printing with programs such as <samp><span class="command">dvips</span></samp>.  Alternately, by using
! &lsquo;<samp><span class="samp">make pdf</span></samp>&rsquo; in place of &lsquo;<samp><span class="samp">make dvi</span></samp>&rsquo;, you can create documentation
! in the form of <samp><span class="file">.pdf</span></samp> files; this requires <samp><span class="command">texi2pdf</span></samp>, which
  is included with Texinfo version 4.8 and later.  You can also
! <a href="http://shop.fsf.org/">buy printed manuals from the Free Software Foundation</a>, though such manuals may not be for the most
  recent version of GCC.
  
-    <p>If you would like to generate online HTML documentation, do &lsquo;<samp><span class="samp">cd
- </span><var>objdir</var><span class="samp">; make html</span></samp>&rsquo; and HTML will be generated for the gcc manuals in
- <samp><var>objdir</var><span class="file">/gcc/HTML</span></samp>.
  
-    <p><hr />
- <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***Binaries**************************************************************** -->
- <!-- ***Specific**************************************************************** -->
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 1,227 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
! <meta name="keywords" content="Installing GCC">
! <meta name="resource-type" content="document">
! <meta name="distribution" content="global">
! <meta name="Generator" content="makeinfo">
! <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
! <style type="text/css">
! <!--
! a.summary-letter {text-decoration: none}
! blockquote.indentedblock {margin-right: 0em}
! blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
! blockquote.smallquotation {font-size: smaller}
! div.display {margin-left: 3.2em}
! div.example {margin-left: 3.2em}
! div.lisp {margin-left: 3.2em}
! div.smalldisplay {margin-left: 3.2em}
! div.smallexample {margin-left: 3.2em}
! div.smalllisp {margin-left: 3.2em}
! kbd {font-style: oblique}
! pre.display {font-family: inherit}
! pre.format {font-family: inherit}
! pre.menu-comment {font-family: serif}
! pre.menu-preformatted {font-family: serif}
! pre.smalldisplay {font-family: inherit; font-size: smaller}
! pre.smallexample {font-size: smaller}
! pre.smallformat {font-family: inherit; font-size: smaller}
! pre.smalllisp {font-size: smaller}
! span.nolinebreak {white-space: nowrap}
! span.roman {font-family: initial; font-weight: normal}
! span.sansserif {font-family: sans-serif; font-weight: normal}
! ul.no-bullet {list-style: none}
! -->
! </style>
! 
! 
  </head>
! 
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <p>Now that GCC has been built (and optionally tested), you can install it with
! </p><div class="smallexample">
! <pre class="smallexample">cd <var>objdir</var> &amp;&amp; make install
! </pre></div>
! 
! <p>We strongly recommend to install into a target directory where there is
  no previous version of GCC present.  Also, the GNAT runtime should not
  be stripped, as this would break certain features of the debugger that
  depend on this debugging information (catching Ada exceptions for
  instance).
! </p>
! <p>That step completes the installation of GCC; user level binaries can
! be found in <samp><var>prefix</var>/bin</samp> where <var>prefix</var> is the value
! you specified with the <samp>--prefix</samp> to configure (or
! <samp>/usr/local</samp> by default).  (If you specified <samp>--bindir</samp>,
  that directory will be used instead; otherwise, if you specified
! <samp>--exec-prefix</samp>, <samp><var>exec-prefix</var>/bin</samp> will be used.)
  Headers for the C++ and Java libraries are installed in
! <samp><var>prefix</var>/include</samp>; libraries in <samp><var>libdir</var></samp>
! (normally <samp><var>prefix</var>/lib</samp>); internal parts of the compiler in
! <samp><var>libdir</var>/gcc</samp> and <samp><var>libexecdir</var>/gcc</samp>; documentation
  in info format in <samp><var>infodir</var></samp> (normally
! <samp><var>prefix</var>/info</samp>).
! </p>
! <p>When installing cross-compilers, GCC&rsquo;s executables
  are not only installed into <samp><var>bindir</var></samp>, that
! is, <samp><var>exec-prefix</var>/bin</samp>, but additionally into
! <samp><var>exec-prefix</var>/<var>target-alias</var>/bin</samp>, if that directory
! exists.  Typically, such <em>tooldirs</em> hold target-specific
  binutils, including assembler and linker.
! </p>
! <p>Installation into a temporary staging area or into a <code>chroot</code>
  jail can be achieved with the command
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">make DESTDIR=<var>path-to-rootdir</var> install
+ </pre></div>
  
! <p>where <var>path-to-rootdir</var> is the absolute path of
  a directory relative to which all installation paths will be
  interpreted.  Note that the directory specified by <code>DESTDIR</code>
  need not exist yet; it will be created if necessary.
! </p>
! <p>There is a subtle point with tooldirs and <code>DESTDIR</code>:
  If you relocate a cross-compiler installation with
! e.g. &lsquo;<samp>DESTDIR=<var>rootdir</var></samp>&rsquo;, then the directory
! <samp><var>rootdir</var>/<var>exec-prefix</var>/<var>target-alias</var>/bin</samp> will
  be filled with duplicated GCC executables only if it already exists,
  it will not be created otherwise.  This is regarded as a feature,
  not as a bug, because it gives slightly more control to the packagers
  using the <code>DESTDIR</code> feature.
+ </p>
+ <p>You can install stripped programs and libraries with
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">make install-strip
+ </pre></div>
  
! <p>If you are bootstrapping a released version of GCC then please
  quickly review the build status page for your release, available from
! <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>.
  If your system is not listed for the version of GCC that you built,
  send a note to
  <a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> indicating
! that you successfully built and installed GCC.
  Include the following information:
! </p>
! <ul>
! <li> Output from running <samp><var>srcdir</var>/config.guess</samp>.  Do not send
  that file itself, just the one-line output from running it.
  
! </li><li> The output of &lsquo;<samp>gcc -v</samp>&rsquo; for your newly installed <code>gcc</code>.
  This tells us which version of GCC you built and the options you passed to
  configure.
  
! </li><li> Whether you enabled all languages or a subset of them.  If you used a
  full distribution then this information is part of the configure
! options in the output of &lsquo;<samp>gcc -v</samp>&rsquo;, but if you downloaded the
! &ldquo;core&rdquo; compiler plus additional front ends then it isn&rsquo;t apparent
  which ones you built unless you tell us about it.
  
! </li><li> If the build was for GNU/Linux, also include:
! <ul>
! <li> The distribution name and version (e.g., Red Hat 7.1 or Debian 2.2.3);
! this information should be available from <samp>/etc/issue</samp>.
  
! </li><li> The version of the Linux kernel, available from &lsquo;<samp>uname --version</samp>&rsquo;
! or &lsquo;<samp>uname -a</samp>&rsquo;.
  
! </li><li> The version of glibc you used; for RPM-based systems like Red Hat,
! Mandrake, and SuSE type &lsquo;<samp>rpm -q glibc</samp>&rsquo; to get the glibc version,
! and on systems like Debian and Progeny use &lsquo;<samp>dpkg -l libc6</samp>&rsquo;.
! </li></ul>
! <p>For other systems, you can include similar information if you think it is
  relevant.
! </p>
! </li><li> Any other information that you think would be useful to people building
  GCC on the same configuration.  The new entry in the build status list
! will include a link to the archived copy of your message.
! </li></ul>
  
! <p>We&rsquo;d also like to know if the
  <a href="specific.html">host/target specific installation notes</a>
! didn&rsquo;t include your host/target information or if that information is
  incomplete or out of date.  Send a note to
  <a href="mailto:gcc@gcc.gnu.org">gcc@gcc.gnu.org</a> detailing how the information should be changed.
! </p>
! <p>If you find a bug, please report it following the
  <a href="../bugs/">bug reporting guidelines</a>.
! </p>
! <p>If you want to print the GCC manuals, do &lsquo;<samp>cd <var>objdir</var>; make
! dvi</samp>&rsquo;.  You will need to have <code>texi2dvi</code> (version at least 4.7)
! and TeX installed.  This creates a number of <samp>.dvi</samp> files in
  subdirectories of <samp><var>objdir</var></samp>; these may be converted for
! printing with programs such as <code>dvips</code>.  Alternately, by using
! &lsquo;<samp>make pdf</samp>&rsquo; in place of &lsquo;<samp>make dvi</samp>&rsquo;, you can create documentation
! in the form of <samp>.pdf</samp> files; this requires <code>texi2pdf</code>, which
  is included with Texinfo version 4.8 and later.  You can also
! <a href="http://shop.fsf.org/">buy printed manuals from the
! Free Software Foundation</a>, though such manuals may not be for the most
  recent version of GCC.
+ </p>
+ <p>If you would like to generate online HTML documentation, do &lsquo;<samp>cd
+ <var>objdir</var>; make html</samp>&rsquo; and HTML will be generated for the gcc manuals in
+ <samp><var>objdir</var>/gcc/HTML</samp>.
+ </p>
+ <hr />
+ <p>
+ <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
  
  
  
  
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/gfdl.html gcc-6.5.0/INSTALL/gfdl.html
*** gcc-6.4.0/INSTALL/gfdl.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/gfdl.html	Fri Oct 26 09:56:39 2018
***************
*** 1,82 ****
! <html lang="en">
! <head>
! <title>Installing GCC: GNU Free Documentation License</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC: GNU Free Documentation License">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
!   pre.smalldisplay { font-family:inherit; font-size:smaller }
!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
- <body>
- <h1 class="settitle">Installing GCC: GNU Free Documentation License</h1>
- <h1 align="center">Installing GCC: GNU Free Documentation License</h1><!-- man begin DESCRIPTION -->
  
!    <p><a name="index-FDL_002c-GNU-Free-Documentation-License-1"></a><div align="center">Version 1.3, 3 November 2008</div>
  
- <pre class="display">     Copyright &copy; 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
-      <a href="http://fsf.org/">http://fsf.org/</a>
-      
-      Everyone is permitted to copy and distribute verbatim copies
-      of this license document, but changing it is not allowed.
- </pre>
-      <ol type=1 start=0>
- <li>PREAMBLE
  
!      <p>The purpose of this License is to make a manual, textbook, or other
! functional and useful document <dfn>free</dfn> in the sense of freedom: to
  assure everyone the effective freedom to copy and redistribute it,
! with or without modifying it, either commercially or noncommercially. 
  Secondarily, this License preserves for the author and publisher a way
  to get credit for their work, while not being considered responsible
  for modifications made by others.
! 
!      <p>This License is a kind of &ldquo;copyleft&rdquo;, which means that derivative
  works of the document must themselves be free in the same sense.  It
  complements the GNU General Public License, which is a copyleft
  license designed for free software.
! 
!      <p>We have designed this License in order to use it for manuals for free
  software, because free software needs free documentation: a free
  program should come with manuals providing the same freedoms that the
  software does.  But this License is not limited to software manuals;
  it can be used for any textual work, regardless of subject matter or
  whether it is published as a printed book.  We recommend this License
  principally for works whose purpose is instruction or reference.
  
!      <li>APPLICABILITY AND DEFINITIONS
! 
!      <p>This License applies to any manual or other work, in any medium, that
  contains a notice placed by the copyright holder saying it can be
  distributed under the terms of this License.  Such a notice grants a
  world-wide, royalty-free license, unlimited in duration, to use that
--- 1,133 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
! <meta name="keywords" content="Installing GCC">
! <meta name="resource-type" content="document">
! <meta name="distribution" content="global">
! <meta name="Generator" content="makeinfo">
! <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
! <style type="text/css">
! <!--
! a.summary-letter {text-decoration: none}
! blockquote.indentedblock {margin-right: 0em}
! blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
! blockquote.smallquotation {font-size: smaller}
! div.display {margin-left: 3.2em}
! div.example {margin-left: 3.2em}
! div.lisp {margin-left: 3.2em}
! div.smalldisplay {margin-left: 3.2em}
! div.smallexample {margin-left: 3.2em}
! div.smalllisp {margin-left: 3.2em}
! kbd {font-style: oblique}
! pre.display {font-family: inherit}
! pre.format {font-family: inherit}
! pre.menu-comment {font-family: serif}
! pre.menu-preformatted {font-family: serif}
! pre.smalldisplay {font-family: inherit; font-size: smaller}
! pre.smallexample {font-size: smaller}
! pre.smallformat {font-family: inherit; font-size: smaller}
! pre.smalllisp {font-size: smaller}
! span.nolinebreak {white-space: nowrap}
! span.roman {font-family: initial; font-weight: normal}
! span.sansserif {font-family: sans-serif; font-weight: normal}
! ul.no-bullet {list-style: none}
! -->
! </style>
! 
! 
  </head>
  
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
  
  
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <h1 align="center">Installing GCC: GNU Free Documentation License</h1>
! 
! <a name="index-FDL_002c-GNU-Free-Documentation-License"></a>
! <div align="center">Version 1.3, 3 November 2008
! </div>
! <div class="display">
! <pre class="display">Copyright &copy; 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
! <a href="http://fsf.org/">http://fsf.org/</a>
! 
! Everyone is permitted to copy and distribute verbatim copies
! of this license document, but changing it is not allowed.
! </pre></div>
! 
! <ol start="0">
! <li> PREAMBLE
! 
! <p>The purpose of this License is to make a manual, textbook, or other
! functional and useful document <em>free</em> in the sense of freedom: to
  assure everyone the effective freedom to copy and redistribute it,
! with or without modifying it, either commercially or noncommercially.
  Secondarily, this License preserves for the author and publisher a way
  to get credit for their work, while not being considered responsible
  for modifications made by others.
! </p>
! <p>This License is a kind of &ldquo;copyleft&rdquo;, which means that derivative
  works of the document must themselves be free in the same sense.  It
  complements the GNU General Public License, which is a copyleft
  license designed for free software.
! </p>
! <p>We have designed this License in order to use it for manuals for free
  software, because free software needs free documentation: a free
  program should come with manuals providing the same freedoms that the
  software does.  But this License is not limited to software manuals;
  it can be used for any textual work, regardless of subject matter or
  whether it is published as a printed book.  We recommend this License
  principally for works whose purpose is instruction or reference.
+ </p>
+ </li><li> APPLICABILITY AND DEFINITIONS
  
! <p>This License applies to any manual or other work, in any medium, that
  contains a notice placed by the copyright holder saying it can be
  distributed under the terms of this License.  Such a notice grants a
  world-wide, royalty-free license, unlimited in duration, to use that
*************** refers to any such manual or work.  Any
*** 85,98 ****
  licensee, and is addressed as &ldquo;you&rdquo;.  You accept the license if you
  copy, modify or distribute the work in a way requiring permission
  under copyright law.
! 
!      <p>A &ldquo;Modified Version&rdquo; of the Document means any work containing the
  Document or a portion of it, either copied verbatim, or with
  modifications and/or translated into another language.
! 
!      <p>A &ldquo;Secondary Section&rdquo; is a named appendix or a front-matter section
  of the Document that deals exclusively with the relationship of the
! publishers or authors of the Document to the Document's overall
  subject (or to related matters) and contains nothing that could fall
  directly within that overall subject.  (Thus, if the Document is in
  part a textbook of mathematics, a Secondary Section may not explain
--- 136,149 ----
  licensee, and is addressed as &ldquo;you&rdquo;.  You accept the license if you
  copy, modify or distribute the work in a way requiring permission
  under copyright law.
! </p>
! <p>A &ldquo;Modified Version&rdquo; of the Document means any work containing the
  Document or a portion of it, either copied verbatim, or with
  modifications and/or translated into another language.
! </p>
! <p>A &ldquo;Secondary Section&rdquo; is a named appendix or a front-matter section
  of the Document that deals exclusively with the relationship of the
! publishers or authors of the Document to the Document&rsquo;s overall
  subject (or to related matters) and contains nothing that could fall
  directly within that overall subject.  (Thus, if the Document is in
  part a textbook of mathematics, a Secondary Section may not explain
*************** any mathematics.)  The relationship coul
*** 100,120 ****
  connection with the subject or with related matters, or of legal,
  commercial, philosophical, ethical or political position regarding
  them.
! 
!      <p>The &ldquo;Invariant Sections&rdquo; are certain Secondary Sections whose titles
  are designated, as being those of Invariant Sections, in the notice
  that says that the Document is released under this License.  If a
  section does not fit the above definition of Secondary then it is not
  allowed to be designated as Invariant.  The Document may contain zero
  Invariant Sections.  If the Document does not identify any Invariant
  Sections then there are none.
! 
!      <p>The &ldquo;Cover Texts&rdquo; are certain short passages of text that are listed,
  as Front-Cover Texts or Back-Cover Texts, in the notice that says that
  the Document is released under this License.  A Front-Cover Text may
  be at most 5 words, and a Back-Cover Text may be at most 25 words.
! 
!      <p>A &ldquo;Transparent&rdquo; copy of the Document means a machine-readable copy,
  represented in a format whose specification is available to the
  general public, that is suitable for revising the document
  straightforwardly with generic text editors or (for images composed of
--- 151,171 ----
  connection with the subject or with related matters, or of legal,
  commercial, philosophical, ethical or political position regarding
  them.
! </p>
! <p>The &ldquo;Invariant Sections&rdquo; are certain Secondary Sections whose titles
  are designated, as being those of Invariant Sections, in the notice
  that says that the Document is released under this License.  If a
  section does not fit the above definition of Secondary then it is not
  allowed to be designated as Invariant.  The Document may contain zero
  Invariant Sections.  If the Document does not identify any Invariant
  Sections then there are none.
! </p>
! <p>The &ldquo;Cover Texts&rdquo; are certain short passages of text that are listed,
  as Front-Cover Texts or Back-Cover Texts, in the notice that says that
  the Document is released under this License.  A Front-Cover Text may
  be at most 5 words, and a Back-Cover Text may be at most 25 words.
! </p>
! <p>A &ldquo;Transparent&rdquo; copy of the Document means a machine-readable copy,
  represented in a format whose specification is available to the
  general public, that is suitable for revising the document
  straightforwardly with generic text editors or (for images composed of
*************** drawing editor, and that is suitable for
*** 123,134 ****
  for automatic translation to a variety of formats suitable for input
  to text formatters.  A copy made in an otherwise Transparent file
  format whose markup, or absence of markup, has been arranged to thwart
! or discourage subsequent modification by readers is not Transparent. 
  An image format is not Transparent if used for any substantial amount
  of text.  A copy that is not &ldquo;Transparent&rdquo; is called &ldquo;Opaque&rdquo;.
! 
!      <p>Examples of suitable formats for Transparent copies include plain
! <span class="sc">ascii</span> without markup, Texinfo input format, LaTeX input
  format, <acronym>SGML</acronym> or <acronym>XML</acronym> using a publicly available
  <acronym>DTD</acronym>, and standard-conforming simple <acronym>HTML</acronym>,
  PostScript or <acronym>PDF</acronym> designed for human modification.  Examples
--- 174,185 ----
  for automatic translation to a variety of formats suitable for input
  to text formatters.  A copy made in an otherwise Transparent file
  format whose markup, or absence of markup, has been arranged to thwart
! or discourage subsequent modification by readers is not Transparent.
  An image format is not Transparent if used for any substantial amount
  of text.  A copy that is not &ldquo;Transparent&rdquo; is called &ldquo;Opaque&rdquo;.
! </p>
! <p>Examples of suitable formats for Transparent copies include plain
! <small>ASCII</small> without markup, Texinfo input format, LaTeX input
  format, <acronym>SGML</acronym> or <acronym>XML</acronym> using a publicly available
  <acronym>DTD</acronym>, and standard-conforming simple <acronym>HTML</acronym>,
  PostScript or <acronym>PDF</acronym> designed for human modification.  Examples
*************** read and edited only by proprietary word
*** 139,173 ****
  not generally available, and the machine-generated <acronym>HTML</acronym>,
  PostScript or <acronym>PDF</acronym> produced by some word processors for
  output purposes only.
! 
!      <p>The &ldquo;Title Page&rdquo; means, for a printed book, the title page itself,
  plus such following pages as are needed to hold, legibly, the material
  this License requires to appear in the title page.  For works in
  formats which do not have any title page as such, &ldquo;Title Page&rdquo; means
! the text near the most prominent appearance of the work's title,
  preceding the beginning of the body of the text.
! 
!      <p>The &ldquo;publisher&rdquo; means any person or entity that distributes copies
  of the Document to the public.
! 
!      <p>A section &ldquo;Entitled XYZ&rdquo; means a named subunit of the Document whose
  title either is precisely XYZ or contains XYZ in parentheses following
  text that translates XYZ in another language.  (Here XYZ stands for a
  specific section name mentioned below, such as &ldquo;Acknowledgements&rdquo;,
  &ldquo;Dedications&rdquo;, &ldquo;Endorsements&rdquo;, or &ldquo;History&rdquo;.)  To &ldquo;Preserve the Title&rdquo;
  of such a section when you modify the Document means that it remains a
  section &ldquo;Entitled XYZ&rdquo; according to this definition.
! 
!      <p>The Document may include Warranty Disclaimers next to the notice which
  states that this License applies to the Document.  These Warranty
  Disclaimers are considered to be included by reference in this
  License, but only as regards disclaiming warranties: any other
  implication that these Warranty Disclaimers may have is void and has
  no effect on the meaning of this License.
  
!      <li>VERBATIM COPYING
! 
!      <p>You may copy and distribute the Document in any medium, either
  commercially or noncommercially, provided that this License, the
  copyright notices, and the license notice saying this License applies
  to the Document are reproduced in all copies, and that you add no other
--- 190,224 ----
  not generally available, and the machine-generated <acronym>HTML</acronym>,
  PostScript or <acronym>PDF</acronym> produced by some word processors for
  output purposes only.
! </p>
! <p>The &ldquo;Title Page&rdquo; means, for a printed book, the title page itself,
  plus such following pages as are needed to hold, legibly, the material
  this License requires to appear in the title page.  For works in
  formats which do not have any title page as such, &ldquo;Title Page&rdquo; means
! the text near the most prominent appearance of the work&rsquo;s title,
  preceding the beginning of the body of the text.
! </p>
! <p>The &ldquo;publisher&rdquo; means any person or entity that distributes copies
  of the Document to the public.
! </p>
! <p>A section &ldquo;Entitled XYZ&rdquo; means a named subunit of the Document whose
  title either is precisely XYZ or contains XYZ in parentheses following
  text that translates XYZ in another language.  (Here XYZ stands for a
  specific section name mentioned below, such as &ldquo;Acknowledgements&rdquo;,
  &ldquo;Dedications&rdquo;, &ldquo;Endorsements&rdquo;, or &ldquo;History&rdquo;.)  To &ldquo;Preserve the Title&rdquo;
  of such a section when you modify the Document means that it remains a
  section &ldquo;Entitled XYZ&rdquo; according to this definition.
! </p>
! <p>The Document may include Warranty Disclaimers next to the notice which
  states that this License applies to the Document.  These Warranty
  Disclaimers are considered to be included by reference in this
  License, but only as regards disclaiming warranties: any other
  implication that these Warranty Disclaimers may have is void and has
  no effect on the meaning of this License.
+ </p>
+ </li><li> VERBATIM COPYING
  
! <p>You may copy and distribute the Document in any medium, either
  commercially or noncommercially, provided that this License, the
  copyright notices, and the license notice saying this License applies
  to the Document are reproduced in all copies, and that you add no other
*************** technical measures to obstruct or contro
*** 176,262 ****
  copying of the copies you make or distribute.  However, you may accept
  compensation in exchange for copies.  If you distribute a large enough
  number of copies you must also follow the conditions in section 3.
! 
!      <p>You may also lend copies, under the same conditions stated above, and
  you may publicly display copies.
  
!      <li>COPYING IN QUANTITY
! 
!      <p>If you publish printed copies (or copies in media that commonly have
  printed covers) of the Document, numbering more than 100, and the
! Document's license notice requires Cover Texts, you must enclose the
  copies in covers that carry, clearly and legibly, all these Cover
  Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
  the back cover.  Both covers must also clearly and legibly identify
  you as the publisher of these copies.  The front cover must present
  the full title with all words of the title equally prominent and
! visible.  You may add other material on the covers in addition. 
  Copying with changes limited to the covers, as long as they preserve
  the title of the Document and satisfy these conditions, can be treated
  as verbatim copying in other respects.
! 
!      <p>If the required texts for either cover are too voluminous to fit
  legibly, you should put the first ones listed (as many as fit
  reasonably) on the actual cover, and continue the rest onto adjacent
  pages.
! 
!      <p>If you publish or distribute Opaque copies of the Document numbering
  more than 100, you must either include a machine-readable Transparent
  copy along with each Opaque copy, or state in or with each Opaque copy
  a computer-network location from which the general network-using
  public has access to download using public-standard network protocols
! a complete Transparent copy of the Document, free of added material. 
  If you use the latter option, you must take reasonably prudent steps,
  when you begin distribution of Opaque copies in quantity, to ensure
  that this Transparent copy will remain thus accessible at the stated
  location until at least one year after the last time you distribute an
  Opaque copy (directly or through your agents or retailers) of that
  edition to the public.
! 
!      <p>It is requested, but not required, that you contact the authors of the
  Document well before redistributing any large number of copies, to give
  them a chance to provide you with an updated version of the Document.
  
!      <li>MODIFICATIONS
! 
!      <p>You may copy and distribute a Modified Version of the Document under
  the conditions of sections 2 and 3 above, provided that you release
  the Modified Version under precisely this License, with the Modified
  Version filling the role of the Document, thus licensing distribution
  and modification of the Modified Version to whoever possesses a copy
  of it.  In addition, you must do these things in the Modified Version:
! 
!           <ol type=A start=1>
! <li>Use in the Title Page (and on the covers, if any) a title distinct
  from that of the Document, and from those of previous versions
  (which should, if there were any, be listed in the History section
  of the Document).  You may use the same title as a previous version
  if the original publisher of that version gives permission.
  
!           <li>List on the Title Page, as authors, one or more persons or entities
  responsible for authorship of the modifications in the Modified
  Version, together with at least five of the principal authors of the
  Document (all of its principal authors, if it has fewer than five),
  unless they release you from this requirement.
  
!           <li>State on the Title page the name of the publisher of the
  Modified Version, as the publisher.
  
!           <li>Preserve all the copyright notices of the Document.
  
!           <li>Add an appropriate copyright notice for your modifications
  adjacent to the other copyright notices.
  
!           <li>Include, immediately after the copyright notices, a license notice
  giving the public permission to use the Modified Version under the
  terms of this License, in the form shown in the Addendum below.
  
!           <li>Preserve in that license notice the full lists of Invariant Sections
! and required Cover Texts given in the Document's license notice.
  
!           <li>Include an unaltered copy of this License.
  
!           <li>Preserve the section Entitled &ldquo;History&rdquo;, Preserve its Title, and add
  to it an item stating at least the title, year, new authors, and
  publisher of the Modified Version as given on the Title Page.  If
  there is no section Entitled &ldquo;History&rdquo; in the Document, create one
--- 227,313 ----
  copying of the copies you make or distribute.  However, you may accept
  compensation in exchange for copies.  If you distribute a large enough
  number of copies you must also follow the conditions in section 3.
! </p>
! <p>You may also lend copies, under the same conditions stated above, and
  you may publicly display copies.
+ </p>
+ </li><li> COPYING IN QUANTITY
  
! <p>If you publish printed copies (or copies in media that commonly have
  printed covers) of the Document, numbering more than 100, and the
! Document&rsquo;s license notice requires Cover Texts, you must enclose the
  copies in covers that carry, clearly and legibly, all these Cover
  Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on
  the back cover.  Both covers must also clearly and legibly identify
  you as the publisher of these copies.  The front cover must present
  the full title with all words of the title equally prominent and
! visible.  You may add other material on the covers in addition.
  Copying with changes limited to the covers, as long as they preserve
  the title of the Document and satisfy these conditions, can be treated
  as verbatim copying in other respects.
! </p>
! <p>If the required texts for either cover are too voluminous to fit
  legibly, you should put the first ones listed (as many as fit
  reasonably) on the actual cover, and continue the rest onto adjacent
  pages.
! </p>
! <p>If you publish or distribute Opaque copies of the Document numbering
  more than 100, you must either include a machine-readable Transparent
  copy along with each Opaque copy, or state in or with each Opaque copy
  a computer-network location from which the general network-using
  public has access to download using public-standard network protocols
! a complete Transparent copy of the Document, free of added material.
  If you use the latter option, you must take reasonably prudent steps,
  when you begin distribution of Opaque copies in quantity, to ensure
  that this Transparent copy will remain thus accessible at the stated
  location until at least one year after the last time you distribute an
  Opaque copy (directly or through your agents or retailers) of that
  edition to the public.
! </p>
! <p>It is requested, but not required, that you contact the authors of the
  Document well before redistributing any large number of copies, to give
  them a chance to provide you with an updated version of the Document.
+ </p>
+ </li><li> MODIFICATIONS
  
! <p>You may copy and distribute a Modified Version of the Document under
  the conditions of sections 2 and 3 above, provided that you release
  the Modified Version under precisely this License, with the Modified
  Version filling the role of the Document, thus licensing distribution
  and modification of the Modified Version to whoever possesses a copy
  of it.  In addition, you must do these things in the Modified Version:
! </p>
! <ol type="A" start="1">
! <li> Use in the Title Page (and on the covers, if any) a title distinct
  from that of the Document, and from those of previous versions
  (which should, if there were any, be listed in the History section
  of the Document).  You may use the same title as a previous version
  if the original publisher of that version gives permission.
  
! </li><li> List on the Title Page, as authors, one or more persons or entities
  responsible for authorship of the modifications in the Modified
  Version, together with at least five of the principal authors of the
  Document (all of its principal authors, if it has fewer than five),
  unless they release you from this requirement.
  
! </li><li> State on the Title page the name of the publisher of the
  Modified Version, as the publisher.
  
! </li><li> Preserve all the copyright notices of the Document.
  
! </li><li> Add an appropriate copyright notice for your modifications
  adjacent to the other copyright notices.
  
! </li><li> Include, immediately after the copyright notices, a license notice
  giving the public permission to use the Modified Version under the
  terms of this License, in the form shown in the Addendum below.
  
! </li><li> Preserve in that license notice the full lists of Invariant Sections
! and required Cover Texts given in the Document&rsquo;s license notice.
  
! </li><li> Include an unaltered copy of this License.
  
! </li><li> Preserve the section Entitled &ldquo;History&rdquo;, Preserve its Title, and add
  to it an item stating at least the title, year, new authors, and
  publisher of the Modified Version as given on the Title Page.  If
  there is no section Entitled &ldquo;History&rdquo; in the Document, create one
*************** stating the title, year, authors, and pu
*** 264,309 ****
  given on its Title Page, then add an item describing the Modified
  Version as stated in the previous sentence.
  
!           <li>Preserve the network location, if any, given in the Document for
  public access to a Transparent copy of the Document, and likewise
  the network locations given in the Document for previous versions
! it was based on.  These may be placed in the &ldquo;History&rdquo; section. 
  You may omit a network location for a work that was published at
  least four years before the Document itself, or if the original
  publisher of the version it refers to gives permission.
  
!           <li>For any section Entitled &ldquo;Acknowledgements&rdquo; or &ldquo;Dedications&rdquo;, Preserve
  the Title of the section, and preserve in the section all the
  substance and tone of each of the contributor acknowledgements and/or
  dedications given therein.
  
!           <li>Preserve all the Invariant Sections of the Document,
  unaltered in their text and in their titles.  Section numbers
  or the equivalent are not considered part of the section titles.
  
!           <li>Delete any section Entitled &ldquo;Endorsements&rdquo;.  Such a section
  may not be included in the Modified Version.
  
!           <li>Do not retitle any existing section to be Entitled &ldquo;Endorsements&rdquo; or
  to conflict in title with any Invariant Section.
  
!           <li>Preserve any Warranty Disclaimers.
!           </ol>
  
!      <p>If the Modified Version includes new front-matter sections or
  appendices that qualify as Secondary Sections and contain no material
  copied from the Document, you may at your option designate some or all
  of these sections as invariant.  To do this, add their titles to the
! list of Invariant Sections in the Modified Version's license notice. 
  These titles must be distinct from any other section titles.
! 
!      <p>You may add a section Entitled &ldquo;Endorsements&rdquo;, provided it contains
  nothing but endorsements of your Modified Version by various
  parties&mdash;for example, statements of peer review or that the text has
  been approved by an organization as the authoritative definition of a
  standard.
! 
!      <p>You may add a passage of up to five words as a Front-Cover Text, and a
  passage of up to 25 words as a Back-Cover Text, to the end of the list
  of Cover Texts in the Modified Version.  Only one passage of
  Front-Cover Text and one of Back-Cover Text may be added by (or
--- 315,360 ----
  given on its Title Page, then add an item describing the Modified
  Version as stated in the previous sentence.
  
! </li><li> Preserve the network location, if any, given in the Document for
  public access to a Transparent copy of the Document, and likewise
  the network locations given in the Document for previous versions
! it was based on.  These may be placed in the &ldquo;History&rdquo; section.
  You may omit a network location for a work that was published at
  least four years before the Document itself, or if the original
  publisher of the version it refers to gives permission.
  
! </li><li> For any section Entitled &ldquo;Acknowledgements&rdquo; or &ldquo;Dedications&rdquo;, Preserve
  the Title of the section, and preserve in the section all the
  substance and tone of each of the contributor acknowledgements and/or
  dedications given therein.
  
! </li><li> Preserve all the Invariant Sections of the Document,
  unaltered in their text and in their titles.  Section numbers
  or the equivalent are not considered part of the section titles.
  
! </li><li> Delete any section Entitled &ldquo;Endorsements&rdquo;.  Such a section
  may not be included in the Modified Version.
  
! </li><li> Do not retitle any existing section to be Entitled &ldquo;Endorsements&rdquo; or
  to conflict in title with any Invariant Section.
  
! </li><li> Preserve any Warranty Disclaimers.
! </li></ol>
  
! <p>If the Modified Version includes new front-matter sections or
  appendices that qualify as Secondary Sections and contain no material
  copied from the Document, you may at your option designate some or all
  of these sections as invariant.  To do this, add their titles to the
! list of Invariant Sections in the Modified Version&rsquo;s license notice.
  These titles must be distinct from any other section titles.
! </p>
! <p>You may add a section Entitled &ldquo;Endorsements&rdquo;, provided it contains
  nothing but endorsements of your Modified Version by various
  parties&mdash;for example, statements of peer review or that the text has
  been approved by an organization as the authoritative definition of a
  standard.
! </p>
! <p>You may add a passage of up to five words as a Front-Cover Text, and a
  passage of up to 25 words as a Back-Cover Text, to the end of the list
  of Cover Texts in the Modified Version.  Only one passage of
  Front-Cover Text and one of Back-Cover Text may be added by (or
*************** includes a cover text for the same cover
*** 312,382 ****
  by arrangement made by the same entity you are acting on behalf of,
  you may not add another; but you may replace the old one, on explicit
  permission from the previous publisher that added the old one.
! 
!      <p>The author(s) and publisher(s) of the Document do not by this License
  give permission to use their names for publicity for or to assert or
  imply endorsement of any Modified Version.
  
!      <li>COMBINING DOCUMENTS
! 
!      <p>You may combine the Document with other documents released under this
  License, under the terms defined in section 4 above for modified
  versions, provided that you include in the combination all of the
  Invariant Sections of all of the original documents, unmodified, and
  list them all as Invariant Sections of your combined work in its
  license notice, and that you preserve all their Warranty Disclaimers.
! 
!      <p>The combined work need only contain one copy of this License, and
  multiple identical Invariant Sections may be replaced with a single
  copy.  If there are multiple Invariant Sections with the same name but
  different contents, make the title of each such section unique by
  adding at the end of it, in parentheses, the name of the original
! author or publisher of that section if known, or else a unique number. 
  Make the same adjustment to the section titles in the list of
  Invariant Sections in the license notice of the combined work.
! 
!      <p>In the combination, you must combine any sections Entitled &ldquo;History&rdquo;
  in the various original documents, forming one section Entitled
  &ldquo;History&rdquo;; likewise combine any sections Entitled &ldquo;Acknowledgements&rdquo;,
  and any sections Entitled &ldquo;Dedications&rdquo;.  You must delete all
  sections Entitled &ldquo;Endorsements.&rdquo;
  
!      <li>COLLECTIONS OF DOCUMENTS
! 
!      <p>You may make a collection consisting of the Document and other documents
  released under this License, and replace the individual copies of this
  License in the various documents with a single copy that is included in
  the collection, provided that you follow the rules of this License for
  verbatim copying of each of the documents in all other respects.
! 
!      <p>You may extract a single document from such a collection, and distribute
  it individually under this License, provided you insert a copy of this
  License into the extracted document, and follow this License in all
  other respects regarding verbatim copying of that document.
  
!      <li>AGGREGATION WITH INDEPENDENT WORKS
! 
!      <p>A compilation of the Document or its derivatives with other separate
  and independent documents or works, in or on a volume of a storage or
  distribution medium, is called an &ldquo;aggregate&rdquo; if the copyright
  resulting from the compilation is not used to limit the legal rights
! of the compilation's users beyond what the individual works permit. 
  When the Document is included in an aggregate, this License does not
  apply to the other works in the aggregate which are not themselves
  derivative works of the Document.
! 
!      <p>If the Cover Text requirement of section 3 is applicable to these
  copies of the Document, then if the Document is less than one half of
! the entire aggregate, the Document's Cover Texts may be placed on
  covers that bracket the Document within the aggregate, or the
! electronic equivalent of covers if the Document is in electronic form. 
  Otherwise they must appear on printed covers that bracket the whole
  aggregate.
  
!      <li>TRANSLATION
! 
!      <p>Translation is considered a kind of modification, so you may
! distribute translations of the Document under the terms of section 4. 
  Replacing Invariant Sections with translations requires special
  permission from their copyright holders, but you may include
  translations of some or all Invariant Sections in addition to the
--- 363,433 ----
  by arrangement made by the same entity you are acting on behalf of,
  you may not add another; but you may replace the old one, on explicit
  permission from the previous publisher that added the old one.
! </p>
! <p>The author(s) and publisher(s) of the Document do not by this License
  give permission to use their names for publicity for or to assert or
  imply endorsement of any Modified Version.
+ </p>
+ </li><li> COMBINING DOCUMENTS
  
! <p>You may combine the Document with other documents released under this
  License, under the terms defined in section 4 above for modified
  versions, provided that you include in the combination all of the
  Invariant Sections of all of the original documents, unmodified, and
  list them all as Invariant Sections of your combined work in its
  license notice, and that you preserve all their Warranty Disclaimers.
! </p>
! <p>The combined work need only contain one copy of this License, and
  multiple identical Invariant Sections may be replaced with a single
  copy.  If there are multiple Invariant Sections with the same name but
  different contents, make the title of each such section unique by
  adding at the end of it, in parentheses, the name of the original
! author or publisher of that section if known, or else a unique number.
  Make the same adjustment to the section titles in the list of
  Invariant Sections in the license notice of the combined work.
! </p>
! <p>In the combination, you must combine any sections Entitled &ldquo;History&rdquo;
  in the various original documents, forming one section Entitled
  &ldquo;History&rdquo;; likewise combine any sections Entitled &ldquo;Acknowledgements&rdquo;,
  and any sections Entitled &ldquo;Dedications&rdquo;.  You must delete all
  sections Entitled &ldquo;Endorsements.&rdquo;
+ </p>
+ </li><li> COLLECTIONS OF DOCUMENTS
  
! <p>You may make a collection consisting of the Document and other documents
  released under this License, and replace the individual copies of this
  License in the various documents with a single copy that is included in
  the collection, provided that you follow the rules of this License for
  verbatim copying of each of the documents in all other respects.
! </p>
! <p>You may extract a single document from such a collection, and distribute
  it individually under this License, provided you insert a copy of this
  License into the extracted document, and follow this License in all
  other respects regarding verbatim copying of that document.
+ </p>
+ </li><li> AGGREGATION WITH INDEPENDENT WORKS
  
! <p>A compilation of the Document or its derivatives with other separate
  and independent documents or works, in or on a volume of a storage or
  distribution medium, is called an &ldquo;aggregate&rdquo; if the copyright
  resulting from the compilation is not used to limit the legal rights
! of the compilation&rsquo;s users beyond what the individual works permit.
  When the Document is included in an aggregate, this License does not
  apply to the other works in the aggregate which are not themselves
  derivative works of the Document.
! </p>
! <p>If the Cover Text requirement of section 3 is applicable to these
  copies of the Document, then if the Document is less than one half of
! the entire aggregate, the Document&rsquo;s Cover Texts may be placed on
  covers that bracket the Document within the aggregate, or the
! electronic equivalent of covers if the Document is in electronic form.
  Otherwise they must appear on printed covers that bracket the whole
  aggregate.
+ </p>
+ </li><li> TRANSLATION
  
! <p>Translation is considered a kind of modification, so you may
! distribute translations of the Document under the terms of section 4.
  Replacing Invariant Sections with translations requires special
  permission from their copyright holders, but you may include
  translations of some or all Invariant Sections in addition to the
*************** the original English version of this Lic
*** 387,434 ****
  of those notices and disclaimers.  In case of a disagreement between
  the translation and the original version of this License or a notice
  or disclaimer, the original version will prevail.
! 
!      <p>If a section in the Document is Entitled &ldquo;Acknowledgements&rdquo;,
  &ldquo;Dedications&rdquo;, or &ldquo;History&rdquo;, the requirement (section 4) to Preserve
  its Title (section 1) will typically require changing the actual
  title.
  
!      <li>TERMINATION
! 
!      <p>You may not copy, modify, sublicense, or distribute the Document
  except as expressly provided under this License.  Any attempt
  otherwise to copy, modify, sublicense, or distribute it is void, and
  will automatically terminate your rights under this License.
! 
!      <p>However, if you cease all violation of this License, then your license
  from a particular copyright holder is reinstated (a) provisionally,
  unless and until the copyright holder explicitly and finally
  terminates your license, and (b) permanently, if the copyright holder
  fails to notify you of the violation by some reasonable means prior to
  60 days after the cessation.
! 
!      <p>Moreover, your license from a particular copyright holder is
  reinstated permanently if the copyright holder notifies you of the
  violation by some reasonable means, this is the first time you have
  received notice of violation of this License (for any work) from that
  copyright holder, and you cure the violation prior to 30 days after
  your receipt of the notice.
! 
!      <p>Termination of your rights under this section does not terminate the
  licenses of parties who have received copies or rights from you under
  this License.  If your rights have been terminated and not permanently
  reinstated, receipt of a copy of some or all of the same material does
  not give you any rights to use it.
  
!      <li>FUTURE REVISIONS OF THIS LICENSE
! 
!      <p>The Free Software Foundation may publish new, revised versions
  of the GNU Free Documentation License from time to time.  Such new
  versions will be similar in spirit to the present version, but may
  differ in detail to address new problems or concerns.  See
  <a href="http://www.gnu.org/copyleft/">http://www.gnu.org/copyleft/</a>.
! 
!      <p>Each version of the License is given a distinguishing version number. 
  If the Document specifies that a particular numbered version of this
  License &ldquo;or any later version&rdquo; applies to it, you have the option of
  following the terms and conditions either of that specified version or
--- 438,485 ----
  of those notices and disclaimers.  In case of a disagreement between
  the translation and the original version of this License or a notice
  or disclaimer, the original version will prevail.
! </p>
! <p>If a section in the Document is Entitled &ldquo;Acknowledgements&rdquo;,
  &ldquo;Dedications&rdquo;, or &ldquo;History&rdquo;, the requirement (section 4) to Preserve
  its Title (section 1) will typically require changing the actual
  title.
+ </p>
+ </li><li> TERMINATION
  
! <p>You may not copy, modify, sublicense, or distribute the Document
  except as expressly provided under this License.  Any attempt
  otherwise to copy, modify, sublicense, or distribute it is void, and
  will automatically terminate your rights under this License.
! </p>
! <p>However, if you cease all violation of this License, then your license
  from a particular copyright holder is reinstated (a) provisionally,
  unless and until the copyright holder explicitly and finally
  terminates your license, and (b) permanently, if the copyright holder
  fails to notify you of the violation by some reasonable means prior to
  60 days after the cessation.
! </p>
! <p>Moreover, your license from a particular copyright holder is
  reinstated permanently if the copyright holder notifies you of the
  violation by some reasonable means, this is the first time you have
  received notice of violation of this License (for any work) from that
  copyright holder, and you cure the violation prior to 30 days after
  your receipt of the notice.
! </p>
! <p>Termination of your rights under this section does not terminate the
  licenses of parties who have received copies or rights from you under
  this License.  If your rights have been terminated and not permanently
  reinstated, receipt of a copy of some or all of the same material does
  not give you any rights to use it.
+ </p>
+ </li><li> FUTURE REVISIONS OF THIS LICENSE
  
! <p>The Free Software Foundation may publish new, revised versions
  of the GNU Free Documentation License from time to time.  Such new
  versions will be similar in spirit to the present version, but may
  differ in detail to address new problems or concerns.  See
  <a href="http://www.gnu.org/copyleft/">http://www.gnu.org/copyleft/</a>.
! </p>
! <p>Each version of the License is given a distinguishing version number.
  If the Document specifies that a particular numbered version of this
  License &ldquo;or any later version&rdquo; applies to it, you have the option of
  following the terms and conditions either of that specified version or
*************** Free Software Foundation.  If the Docume
*** 437,515 ****
  number of this License, you may choose any version ever published (not
  as a draft) by the Free Software Foundation.  If the Document
  specifies that a proxy can decide which future versions of this
! License can be used, that proxy's public statement of acceptance of a
  version permanently authorizes you to choose that version for the
  Document.
  
!      <li>RELICENSING
! 
!      <p>&ldquo;Massive Multiauthor Collaboration Site&rdquo; (or &ldquo;MMC Site&rdquo;) means any
  World Wide Web server that publishes copyrightable works and also
  provides prominent facilities for anybody to edit those works.  A
  public wiki that anybody can edit is an example of such a server.  A
  &ldquo;Massive Multiauthor Collaboration&rdquo; (or &ldquo;MMC&rdquo;) contained in the
  site means any set of copyrightable works thus published on the MMC
  site.
! 
!      <p>&ldquo;CC-BY-SA&rdquo; means the Creative Commons Attribution-Share Alike 3.0
  license published by Creative Commons Corporation, a not-for-profit
  corporation with a principal place of business in San Francisco,
  California, as well as future copyleft versions of that license
  published by that same organization.
! 
!      <p>&ldquo;Incorporate&rdquo; means to publish or republish a Document, in whole or
  in part, as part of another Document.
! 
!      <p>An MMC is &ldquo;eligible for relicensing&rdquo; if it is licensed under this
  License, and if all works that were first published under this License
  somewhere other than this MMC, and subsequently incorporated in whole
  or in part into the MMC, (1) had no cover texts or invariant sections,
  and (2) were thus incorporated prior to November 1, 2008.
! 
!      <p>The operator of an MMC Site may republish an MMC contained in the site
  under CC-BY-SA on the same site at any time before August 1, 2009,
  provided the MMC is eligible for relicensing.
  
!         </ol>
! 
! <h3 class="unnumberedsec"><a name="TOC0"></a>ADDENDUM: How to use this License for your documents</h3>
  
  <p>To use this License in a document you have written, include a copy of
  the License in the document and put the following copyright and
  license notices just after the title page:
  
! <pre class="smallexample">       Copyright (C)  <var>year</var>  <var>your name</var>.
!        Permission is granted to copy, distribute and/or modify this document
!        under the terms of the GNU Free Documentation License, Version 1.3
!        or any later version published by the Free Software Foundation;
!        with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
!        Texts.  A copy of the license is included in the section entitled ``GNU
!        Free Documentation License''.
! </pre>
!    <p>If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
  replace the &ldquo;with...Texts.&rdquo; line with this:
  
! <pre class="smallexample">         with the Invariant Sections being <var>list their titles</var>, with
!          the Front-Cover Texts being <var>list</var>, and with the Back-Cover Texts
!          being <var>list</var>.
! </pre>
!    <p>If you have Invariant Sections without Cover Texts, or some other
  combination of the three, merge those two alternatives to suit the
  situation.
! 
!    <p>If your document contains nontrivial examples of program code, we
  recommend releasing these examples in parallel under your choice of
  free software license, such as the GNU General Public License,
  to permit their use in free software.
  
! <!-- Local Variables: -->
! <!-- ispell-local-pdict: "ispell-dict" -->
! <!-- End: -->
! <!-- man end -->
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 488,572 ----
  number of this License, you may choose any version ever published (not
  as a draft) by the Free Software Foundation.  If the Document
  specifies that a proxy can decide which future versions of this
! License can be used, that proxy&rsquo;s public statement of acceptance of a
  version permanently authorizes you to choose that version for the
  Document.
+ </p>
+ </li><li> RELICENSING
  
! <p>&ldquo;Massive Multiauthor Collaboration Site&rdquo; (or &ldquo;MMC Site&rdquo;) means any
  World Wide Web server that publishes copyrightable works and also
  provides prominent facilities for anybody to edit those works.  A
  public wiki that anybody can edit is an example of such a server.  A
  &ldquo;Massive Multiauthor Collaboration&rdquo; (or &ldquo;MMC&rdquo;) contained in the
  site means any set of copyrightable works thus published on the MMC
  site.
! </p>
! <p>&ldquo;CC-BY-SA&rdquo; means the Creative Commons Attribution-Share Alike 3.0
  license published by Creative Commons Corporation, a not-for-profit
  corporation with a principal place of business in San Francisco,
  California, as well as future copyleft versions of that license
  published by that same organization.
! </p>
! <p>&ldquo;Incorporate&rdquo; means to publish or republish a Document, in whole or
  in part, as part of another Document.
! </p>
! <p>An MMC is &ldquo;eligible for relicensing&rdquo; if it is licensed under this
  License, and if all works that were first published under this License
  somewhere other than this MMC, and subsequently incorporated in whole
  or in part into the MMC, (1) had no cover texts or invariant sections,
  and (2) were thus incorporated prior to November 1, 2008.
! </p>
! <p>The operator of an MMC Site may republish an MMC contained in the site
  under CC-BY-SA on the same site at any time before August 1, 2009,
  provided the MMC is eligible for relicensing.
+ </p>
+ </li></ol>
  
! <a name="ADDENDUM_003a-How-to-use-this-License-for-your-documents"></a>
! <h3 class="unnumberedsec">ADDENDUM: How to use this License for your documents</h3>
  
  <p>To use this License in a document you have written, include a copy of
  the License in the document and put the following copyright and
  license notices just after the title page:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">  Copyright (C)  <var>year</var>  <var>your name</var>.
+   Permission is granted to copy, distribute and/or modify this document
+   under the terms of the GNU Free Documentation License, Version 1.3
+   or any later version published by the Free Software Foundation;
+   with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
+   Texts.  A copy of the license is included in the section entitled ``GNU
+   Free Documentation License''.
+ </pre></div>
  
! <p>If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
  replace the &ldquo;with...Texts.&rdquo; line with this:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">    with the Invariant Sections being <var>list their titles</var>, with
+     the Front-Cover Texts being <var>list</var>, and with the Back-Cover Texts
+     being <var>list</var>.
+ </pre></div>
  
! <p>If you have Invariant Sections without Cover Texts, or some other
  combination of the three, merge those two alternatives to suit the
  situation.
! </p>
! <p>If your document contains nontrivial examples of program code, we
  recommend releasing these examples in parallel under your choice of
  free software license, such as the GNU General Public License,
  to permit their use in free software.
+ </p>
  
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ <hr>
  
  
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/index.html gcc-6.5.0/INSTALL/index.html
*** gcc-6.4.0/INSTALL/index.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/index.html	Fri Oct 26 09:56:37 2018
***************
*** 1,123 ****
! <html lang="en">
! <head>
! <title>Installing GCC</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC">
! <meta name="generator" content="makeinfo 4.13">
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  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
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!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
! <body>
! <h1 class="settitle">Installing GCC</h1>
! The latest version of this document is always available at
! <a href="http://gcc.gnu.org/install/">http://gcc.gnu.org/install/</a>. 
  It refers to the current development sources, instructions for
  specific released versions are included with the sources.
! 
!    <p>This document describes the generic installation procedure for GCC as well
  as detailing some target specific installation instructions.
! 
!    <p>GCC includes several components that previously were separate distributions
  with their own installation instructions.  This document supersedes all
  package-specific installation instructions.
! 
!    <p><em>Before</em> starting the build/install procedure please check the
! <a href="specific.html">host/target specific installation notes</a>. 
  We recommend you browse the entire generic installation instructions before
  you proceed.
! 
!    <p>Lists of successful builds for released versions of GCC are
! available at <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>. 
  These lists are updated as new information becomes available.
  
!    <p>The installation procedure itself is broken into five steps.
! 
!      <ol type=1 start=1>
! <li><a href="prerequisites.html">Prerequisites</a>
! <li><a href="download.html">Downloading the source</a>
! <li><a href="configure.html">Configuration</a>
! <li><a href="build.html">Building</a>
! <li><a href="test.html">Testing</a> (optional)
! <li><a href="finalinstall.html">Final install</a>
!         </ol>
! 
!    <p>Please note that GCC does not support &lsquo;<samp><span class="samp">make uninstall</span></samp>&rsquo; and probably
! won't do so in the near future as this would open a can of worms.  Instead,
  we suggest that you install GCC into a directory of its own and simply
  remove that directory when you do not need that specific version of GCC
  any longer, and, if shared libraries are installed there as well, no
  more binaries exist that use them.
! 
!    <p>There are also some <a href="old.html">old installation instructions</a>,
  which are mostly obsolete but still contain some information which has
  not yet been merged into the main part of this manual.
! 
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
! 
!    <p>Copyright &copy; 1988-2017 Free Software Foundation, Inc.
!    <pre class="sp">
! 
! </pre>
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled &ldquo;<a href="./gfdl.html">GNU Free Documentation License</a>&rdquo;.
  
-    <p>(a) The FSF's Front-Cover Text is:
  
-    <p>A GNU Manual
  
-    <p>(b) The FSF's Back-Cover Text is:
  
-    <p>You have freedom to copy and modify this GNU Manual, like GNU
-      software.  Copies published by the Free Software Foundation raise
-      funds for GNU development.
  
- <!-- ***Prerequisites************************************************** -->
- <!-- ***Downloading the source************************************************** -->
- <!-- ***Configuration*********************************************************** -->
- <!-- ***Building**************************************************************** -->
- <!-- ***Testing***************************************************************** -->
- <!-- ***Final install*********************************************************** -->
- <!-- ***Binaries**************************************************************** -->
- <!-- ***Specific**************************************************************** -->
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 1,165 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
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  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
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! div.smallexample {margin-left: 3.2em}
! div.smalllisp {margin-left: 3.2em}
! kbd {font-style: oblique}
! pre.display {font-family: inherit}
! pre.format {font-family: inherit}
! pre.menu-comment {font-family: serif}
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! span.sansserif {font-family: sans-serif; font-weight: normal}
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! -->
! </style>
! 
! 
  </head>
! 
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <p>The latest version of this document is always available at
! <a href="http://gcc.gnu.org/install/">http://gcc.gnu.org/install/</a>.
  It refers to the current development sources, instructions for
  specific released versions are included with the sources.
! </p>
! <p>This document describes the generic installation procedure for GCC as well
  as detailing some target specific installation instructions.
! </p>
! <p>GCC includes several components that previously were separate distributions
  with their own installation instructions.  This document supersedes all
  package-specific installation instructions.
! </p>
! <p><em>Before</em> starting the build/install procedure please check the
! <a href="specific.html">host/target specific installation notes</a>.
  We recommend you browse the entire generic installation instructions before
  you proceed.
! </p>
! <p>Lists of successful builds for released versions of GCC are
! available at <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>.
  These lists are updated as new information becomes available.
+ </p>
+ <p>The installation procedure itself is broken into five steps.
+ </p>
+ <ol>
+ <li> <a href="prerequisites.html">Prerequisites</a>
+ </li><li> <a href="download.html">Downloading the source</a>
+ </li><li> <a href="configure.html">Configuration</a>
+ </li><li> <a href="build.html">Building</a>
+ </li><li> <a href="test.html">Testing</a> (optional)
+ </li><li> <a href="finalinstall.html">Final install</a>
+ </li></ol>
  
! <p>Please note that GCC does not support &lsquo;<samp>make uninstall</samp>&rsquo; and probably
! won&rsquo;t do so in the near future as this would open a can of worms.  Instead,
  we suggest that you install GCC into a directory of its own and simply
  remove that directory when you do not need that specific version of GCC
  any longer, and, if shared libraries are installed there as well, no
  more binaries exist that use them.
! </p>
! <p>There are also some <a href="old.html">old installation instructions</a>,
  which are mostly obsolete but still contain some information which has
  not yet been merged into the main part of this manual.
! </p>
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
! </p>
! <p>Copyright &copy; 1988-2017 Free Software Foundation, Inc.
! </p><br>
! <p>Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled &ldquo;<a href="./gfdl.html">GNU
! Free Documentation License</a>&rdquo;.
! </p>
! <p>(a) The FSF&rsquo;s Front-Cover Text is:
! </p>
! <p>A GNU Manual
! </p>
! <p>(b) The FSF&rsquo;s Back-Cover Text is:
! </p>
! <p>You have freedom to copy and modify this GNU Manual, like GNU
!      software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.
! </p>
! 
! 
! 
! 
! 
  
  
  
  
  
  
+ 
+ 
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/old.html gcc-6.5.0/INSTALL/old.html
*** gcc-6.4.0/INSTALL/old.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/old.html	Fri Oct 26 09:56:39 2018
***************
*** 1,181 ****
! <html lang="en">
! <head>
! <title>Installing GCC: Old documentation</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC: Old documentation">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
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!   pre.format  { font-family:inherit }
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!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
!   pre.smalllisp    { font-size:smaller }
!   span.sc    { font-variant:small-caps }
!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
! <body>
! <h1 class="settitle">Installing GCC: Old documentation</h1>
  <h1 align="center">Old installation documentation</h1>
  
!    <p>Note most of this information is out of date and superseded by the
  previous chapters of this manual.  It is provided for historical
  reference only, because of a lack of volunteers to merge it into the
  main manual.
  
!    <p>Here is the procedure for installing GCC on a GNU or Unix system.
! 
!      <ol type=1 start=1>
! <li>If you have chosen a configuration for GCC which requires other GNU
  tools (such as GAS or the GNU linker) instead of the standard system
  tools, install the required tools in the build directory under the names
! <samp><span class="file">as</span></samp>, <samp><span class="file">ld</span></samp> or whatever is appropriate.
  
!      <p>Alternatively, you can do subsequent compilation using a value of the
  <code>PATH</code> environment variable such that the necessary GNU tools come
  before the standard system tools.
  
!      <li>Specify the host, build and target machine configurations.  You do this
! when you run the <samp><span class="file">configure</span></samp> script.
! 
!      <p>The <dfn>build</dfn> machine is the system which you are using, the
! <dfn>host</dfn> machine is the system where you want to run the resulting
! compiler (normally the build machine), and the <dfn>target</dfn> machine is
  the system for which you want the compiler to generate code.
! 
!      <p>If you are building a compiler to produce code for the machine it runs
  on (a native compiler), you normally do not need to specify any operands
! to <samp><span class="file">configure</span></samp>; it will try to guess the type of machine you are on
! and use that as the build, host and target machines.  So you don't need
  to specify a configuration when building a native compiler unless
! <samp><span class="file">configure</span></samp> cannot figure out what your configuration is or guesses
  wrong.
! 
!      <p>In those cases, specify the build machine's <dfn>configuration name</dfn>
! with the <samp><span class="option">--host</span></samp> option; the host and target will default to be
  the same as the host machine.
  
!      <p>Here is an example:
! 
!      <pre class="smallexample">          ./configure --host=sparc-sun-sunos4.1
! </pre>
!      <p>A configuration name may be canonical or it may be more or less
  abbreviated.
! 
!      <p>A canonical configuration name has three parts, separated by dashes. 
! It looks like this: &lsquo;<samp><var>cpu</var><span class="samp">-</span><var>company</var><span class="samp">-</span><var>system</var></samp>&rsquo;. 
! (The three parts may themselves contain dashes; <samp><span class="file">configure</span></samp>
  can figure out which dashes serve which purpose.)  For example,
! &lsquo;<samp><span class="samp">m68k-sun-sunos4.1</span></samp>&rsquo; specifies a Sun 3.
! 
!      <p>You can also replace parts of the configuration by nicknames or aliases. 
! For example, &lsquo;<samp><span class="samp">sun3</span></samp>&rsquo; stands for &lsquo;<samp><span class="samp">m68k-sun</span></samp>&rsquo;, so
! &lsquo;<samp><span class="samp">sun3-sunos4.1</span></samp>&rsquo; is another way to specify a Sun 3.
! 
!      <p>You can specify a version number after any of the system types, and some
  of the CPU types.  In most cases, the version is irrelevant, and will be
  ignored.  So you might as well specify the version if you know it.
! 
!      <p>See <a href="#Configurations">Configurations</a>, for a list of supported configuration names and
  notes on many of the configurations.  You should check the notes in that
  section before proceeding any further with the installation of GCC.
  
!         </ol>
! 
!    <p><h2><a name="Configurations"></a>Configurations Supported by GCC</h2><a name="index-configurations-supported-by-GCC-1"></a>
! Here are the possible CPU types:
  
!    <blockquote>
! <!-- gmicro, fx80, spur and tahoe omitted since they don't work. -->
! 1750a, a29k, alpha, arm, avr, c<var>n</var>, clipper, dsp16xx, elxsi, fr30, h8300,
  hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860, i960, ip2k, m32r,
  m68000, m68k, m88k, mcore, mips, mipsel, mips64, mips64el,
  mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle, romp, rs6000, sh, sparc,
! sparclite, sparc64, v850, vax, we32k. 
! </blockquote>
  
!    <p>Here are the recognized company names.  As you can see, customary
  abbreviations are used rather than the longer official names.
! 
! <!-- What should be done about merlin, tek*, dolphin? -->
!    <blockquote>
! acorn, alliant, altos, apollo, apple, att, bull,
  cbm, convergent, convex, crds, dec, dg, dolphin,
  elxsi, encore, harris, hitachi, hp, ibm, intergraph, isi,
  mips, motorola, ncr, next, ns, omron, plexus,
! sequent, sgi, sony, sun, tti, unicom, wrs. 
! </blockquote>
  
!    <p>The company name is meaningful only to disambiguate when the rest of
  the information supplied is insufficient.  You can omit it, writing
! just &lsquo;<samp><var>cpu</var><span class="samp">-</span><var>system</var></samp>&rsquo;, if it is not needed.  For example,
! &lsquo;<samp><span class="samp">vax-ultrix4.2</span></samp>&rsquo; is equivalent to &lsquo;<samp><span class="samp">vax-dec-ultrix4.2</span></samp>&rsquo;.
! 
!    <p>Here is a list of system types:
! 
!    <blockquote>
! 386bsd, aix, acis, amigaos, aos, aout, aux, bosx, bsd, clix, coff, ctix, cxux,
  dgux, dynix, ebmon, ecoff, elf, esix, freebsd, hms, genix, gnu, linux,
  linux-gnu, hiux, hpux, iris, irix, isc, luna, lynxos, mach, minix, msdos, mvs,
  netbsd, newsos, nindy, ns, osf, osfrose, ptx, riscix, riscos, rtu, sco, sim,
  solaris, sunos, sym, sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta,
! vxworks, winnt, xenix. 
! </blockquote>
  
! <p class="noindent">You can omit the system type; then <samp><span class="file">configure</span></samp> guesses the
  operating system from the CPU and company.
! 
!    <p>You can add a version number to the system type; this may or may not
! make a difference.  For example, you can write &lsquo;<samp><span class="samp">bsd4.3</span></samp>&rsquo; or
! &lsquo;<samp><span class="samp">bsd4.4</span></samp>&rsquo; to distinguish versions of BSD.  In practice, the version
! number is most needed for &lsquo;<samp><span class="samp">sysv3</span></samp>&rsquo; and &lsquo;<samp><span class="samp">sysv4</span></samp>&rsquo;, which are often
  treated differently.
! 
!    <p>&lsquo;<samp><span class="samp">linux-gnu</span></samp>&rsquo; is the canonical name for the GNU/Linux target; however
! GCC will also accept &lsquo;<samp><span class="samp">linux</span></samp>&rsquo;.  The version of the kernel in use is
! not relevant on these systems.  A suffix such as &lsquo;<samp><span class="samp">libc1</span></samp>&rsquo; or &lsquo;<samp><span class="samp">aout</span></samp>&rsquo;
  distinguishes major versions of the C library; all of the suffixed versions
  are obsolete.
! 
!    <p>If you specify an impossible combination such as &lsquo;<samp><span class="samp">i860-dg-vms</span></samp>&rsquo;,
! then you may get an error message from <samp><span class="file">configure</span></samp>, or it may
! ignore part of the information and do the best it can with the rest. 
! <samp><span class="file">configure</span></samp> always prints the canonical name for the alternative
  that it used.  GCC does not support all possible alternatives.
! 
!    <p>Often a particular model of machine has a name.  Many machine names are
  recognized as aliases for CPU/company combinations.  Thus, the machine
! name &lsquo;<samp><span class="samp">sun3</span></samp>&rsquo;, mentioned above, is an alias for &lsquo;<samp><span class="samp">m68k-sun</span></samp>&rsquo;. 
  Sometimes we accept a company name as a machine name, when the name is
  popularly used for a particular machine.  Here is a table of the known
  machine names:
! 
!    <blockquote>
! 3300, 3b1, 3b<var>n</var>, 7300, altos3068, altos,
  apollo68, att-7300, balance,
  convex-c<var>n</var>, crds, decstation-3100,
  decstation, delta, encore,
--- 1,232 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
! <meta name="keywords" content="Installing GCC">
! <meta name="resource-type" content="document">
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! </style>
! 
! 
  </head>
! 
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
  <h1 align="center">Old installation documentation</h1>
  
! <p>Note most of this information is out of date and superseded by the
  previous chapters of this manual.  It is provided for historical
  reference only, because of a lack of volunteers to merge it into the
  main manual.
+ </p>
  
! <p>Here is the procedure for installing GCC on a GNU or Unix system.
! </p>
! <ol>
! <li> If you have chosen a configuration for GCC which requires other GNU
  tools (such as GAS or the GNU linker) instead of the standard system
  tools, install the required tools in the build directory under the names
! <samp>as</samp>, <samp>ld</samp> or whatever is appropriate.
  
! <p>Alternatively, you can do subsequent compilation using a value of the
  <code>PATH</code> environment variable such that the necessary GNU tools come
  before the standard system tools.
+ </p>
+ </li><li> Specify the host, build and target machine configurations.  You do this
+ when you run the <samp>configure</samp> script.
  
! <p>The <em>build</em> machine is the system which you are using, the
! <em>host</em> machine is the system where you want to run the resulting
! compiler (normally the build machine), and the <em>target</em> machine is
  the system for which you want the compiler to generate code.
! </p>
! <p>If you are building a compiler to produce code for the machine it runs
  on (a native compiler), you normally do not need to specify any operands
! to <samp>configure</samp>; it will try to guess the type of machine you are on
! and use that as the build, host and target machines.  So you don&rsquo;t need
  to specify a configuration when building a native compiler unless
! <samp>configure</samp> cannot figure out what your configuration is or guesses
  wrong.
! </p>
! <p>In those cases, specify the build machine&rsquo;s <em>configuration name</em>
! with the <samp>--host</samp> option; the host and target will default to be
  the same as the host machine.
+ </p>
+ <p>Here is an example:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">./configure --host=sparc-sun-sunos4.1
+ </pre></div>
  
! <p>A configuration name may be canonical or it may be more or less
  abbreviated.
! </p>
! <p>A canonical configuration name has three parts, separated by dashes.
! It looks like this: &lsquo;<samp><var>cpu</var>-<var>company</var>-<var>system</var></samp>&rsquo;.
! (The three parts may themselves contain dashes; <samp>configure</samp>
  can figure out which dashes serve which purpose.)  For example,
! &lsquo;<samp>m68k-sun-sunos4.1</samp>&rsquo; specifies a Sun 3.
! </p>
! <p>You can also replace parts of the configuration by nicknames or aliases.
! For example, &lsquo;<samp>sun3</samp>&rsquo; stands for &lsquo;<samp>m68k-sun</samp>&rsquo;, so
! &lsquo;<samp>sun3-sunos4.1</samp>&rsquo; is another way to specify a Sun 3.
! </p>
! <p>You can specify a version number after any of the system types, and some
  of the CPU types.  In most cases, the version is irrelevant, and will be
  ignored.  So you might as well specify the version if you know it.
! </p>
! <p>See <a href="#Configurations">Configurations</a>, for a list of supported configuration names and
  notes on many of the configurations.  You should check the notes in that
  section before proceeding any further with the installation of GCC.
+ </p>
+ </li></ol>
  
! <h2><a name="Configurations"></a>Configurations Supported by GCC</h2>
! <a name="index-configurations-supported-by-GCC"></a>
  
! <p>Here are the possible CPU types:
! </p>
! <blockquote>
! <p>1750a, a29k, alpha, arm, avr, c<var>n</var>, clipper, dsp16xx, elxsi, fr30, h8300,
  hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860, i960, ip2k, m32r,
  m68000, m68k, m88k, mcore, mips, mipsel, mips64, mips64el,
  mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle, romp, rs6000, sh, sparc,
! sparclite, sparc64, v850, vax, we32k.
! </p></blockquote>
  
! <p>Here are the recognized company names.  As you can see, customary
  abbreviations are used rather than the longer official names.
! </p>
! <blockquote>
! <p>acorn, alliant, altos, apollo, apple, att, bull,
  cbm, convergent, convex, crds, dec, dg, dolphin,
  elxsi, encore, harris, hitachi, hp, ibm, intergraph, isi,
  mips, motorola, ncr, next, ns, omron, plexus,
! sequent, sgi, sony, sun, tti, unicom, wrs.
! </p></blockquote>
  
! <p>The company name is meaningful only to disambiguate when the rest of
  the information supplied is insufficient.  You can omit it, writing
! just &lsquo;<samp><var>cpu</var>-<var>system</var></samp>&rsquo;, if it is not needed.  For example,
! &lsquo;<samp>vax-ultrix4.2</samp>&rsquo; is equivalent to &lsquo;<samp>vax-dec-ultrix4.2</samp>&rsquo;.
! </p>
! <p>Here is a list of system types:
! </p>
! <blockquote>
! <p>386bsd, aix, acis, amigaos, aos, aout, aux, bosx, bsd, clix, coff, ctix, cxux,
  dgux, dynix, ebmon, ecoff, elf, esix, freebsd, hms, genix, gnu, linux,
  linux-gnu, hiux, hpux, iris, irix, isc, luna, lynxos, mach, minix, msdos, mvs,
  netbsd, newsos, nindy, ns, osf, osfrose, ptx, riscix, riscos, rtu, sco, sim,
  solaris, sunos, sym, sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta,
! vxworks, winnt, xenix.
! </p></blockquote>
  
! <p>You can omit the system type; then <samp>configure</samp> guesses the
  operating system from the CPU and company.
! </p>
! <p>You can add a version number to the system type; this may or may not
! make a difference.  For example, you can write &lsquo;<samp>bsd4.3</samp>&rsquo; or
! &lsquo;<samp>bsd4.4</samp>&rsquo; to distinguish versions of BSD.  In practice, the version
! number is most needed for &lsquo;<samp>sysv3</samp>&rsquo; and &lsquo;<samp>sysv4</samp>&rsquo;, which are often
  treated differently.
! </p>
! <p>&lsquo;<samp>linux-gnu</samp>&rsquo; is the canonical name for the GNU/Linux target; however
! GCC will also accept &lsquo;<samp>linux</samp>&rsquo;.  The version of the kernel in use is
! not relevant on these systems.  A suffix such as &lsquo;<samp>libc1</samp>&rsquo; or &lsquo;<samp>aout</samp>&rsquo;
  distinguishes major versions of the C library; all of the suffixed versions
  are obsolete.
! </p>
! <p>If you specify an impossible combination such as &lsquo;<samp>i860-dg-vms</samp>&rsquo;,
! then you may get an error message from <samp>configure</samp>, or it may
! ignore part of the information and do the best it can with the rest.
! <samp>configure</samp> always prints the canonical name for the alternative
  that it used.  GCC does not support all possible alternatives.
! </p>
! <p>Often a particular model of machine has a name.  Many machine names are
  recognized as aliases for CPU/company combinations.  Thus, the machine
! name &lsquo;<samp>sun3</samp>&rsquo;, mentioned above, is an alias for &lsquo;<samp>m68k-sun</samp>&rsquo;.
  Sometimes we accept a company name as a machine name, when the name is
  popularly used for a particular machine.  Here is a table of the known
  machine names:
! </p>
! <blockquote>
! <p>3300, 3b1, 3b<var>n</var>, 7300, altos3068, altos,
  apollo68, att-7300, balance,
  convex-c<var>n</var>, crds, decstation-3100,
  decstation, delta, encore,
*************** m3230, magnum, merlin, miniframe,
*** 186,201 ****
  mmax, news-3600, news800, news, next,
  pbd, pc532, pmax, powerpc, powerpcle, ps2, risc-news,
  rtpc, sun2, sun386i, sun386, sun3,
! sun4, symmetry, tower-32, tower. 
! </blockquote>
  
! <p class="noindent">Remember that a machine name specifies both the cpu type and the company
! name. 
  <hr />
! <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 237,255 ----
  mmax, news-3600, news800, news, next,
  pbd, pc532, pmax, powerpc, powerpcle, ps2, risc-news,
  rtpc, sun2, sun386i, sun386, sun3,
! sun4, symmetry, tower-32, tower.
! </p></blockquote>
  
! <p>Remember that a machine name specifies both the cpu type and the company
! name.
  <hr />
! <p>
! <a href="./index.html">Return to the GCC Installation page</a>
! </p>
! 
  
  
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/prerequisites.html gcc-6.5.0/INSTALL/prerequisites.html
*** gcc-6.4.0/INSTALL/prerequisites.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/prerequisites.html	Fri Oct 26 09:56:38 2018
***************
*** 1,310 ****
! <html lang="en">
! <head>
! <title>Prerequisites for GCC</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Prerequisites for GCC">
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  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
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  </head>
- <body>
- <h1 class="settitle">Prerequisites for GCC</h1>
- <a name="index-Prerequisites-1"></a>
- GCC requires that various tools and packages be available for use in the
- build procedure.  Modifying GCC sources requires additional tools
- described below.
  
! <h3 class="heading"><a name="TOC0"></a>Tools/packages necessary for building GCC</h3>
  
!      <dl>
! <dt>ISO C++98 compiler<dd>Necessary to bootstrap GCC, although versions of GCC prior
  to 4.8 also allow bootstrapping with a ISO C89 compiler and versions
  of GCC prior to 3.4 also allow bootstrapping with a traditional
  (K&amp;R) C compiler.
! 
!      <p>To build all languages in a cross-compiler or other configuration where
  3-stage bootstrap is not performed, you need to start with an existing
  GCC binary (version 3.4 or later) because source code for language
  frontends other than C might use GCC extensions.
! 
!      <p>Note that to bootstrap GCC with versions of GCC earlier than 3.4, you
! may need to use <samp><span class="option">--disable-stage1-checking</span></samp>, though
  bootstrapping the compiler with such earlier compilers is strongly
  discouraged.
! 
!      <br><dt>C standard library and headers<dd>
! In order to build GCC, the C standard library and headers must be present
  for all target variants for which target libraries will be built (and not
  only the variant of the host C++ compiler).
! 
!      <p>This affects the popular &lsquo;<samp><span class="samp">x86_64-unknown-linux-gnu</span></samp>&rsquo; platform (among
! other multilib targets), for which 64-bit (&lsquo;<samp><span class="samp">x86_64</span></samp>&rsquo;) and 32-bit
! (&lsquo;<samp><span class="samp">i386</span></samp>&rsquo;) libc headers are usually packaged separately. If you do a
! build of a native compiler on &lsquo;<samp><span class="samp">x86_64-unknown-linux-gnu</span></samp>&rsquo;, make sure you
  either have the 32-bit libc developer package properly installed (the exact
  name of the package depends on your distro) or you must build GCC as a
  64-bit only compiler by configuring with the option
! <samp><span class="option">--disable-multilib</span></samp>.  Otherwise, you may encounter an error such as
! &lsquo;<samp><span class="samp">fatal error: gnu/stubs-32.h: No such file</span></samp>&rsquo;
! 
!      <br><dt>GNAT<dd>
! In order to build the Ada compiler (GNAT) you must already have GNAT
  installed because portions of the Ada frontend are written in Ada (with
  GNAT extensions.)  Refer to the Ada installation instructions for more
  specific information.
! 
!      <br><dt>A &ldquo;working&rdquo; POSIX compatible shell, or GNU bash<dd>
! Necessary when running <samp><span class="command">configure</span></samp> because some
! <samp><span class="command">/bin/sh</span></samp> shells have bugs and may crash when configuring the
! target libraries.  In other cases, <samp><span class="command">/bin/sh</span></samp> or <samp><span class="command">ksh</span></samp>
  have disastrous corner-case performance problems.  This
! can cause target <samp><span class="command">configure</span></samp> runs to literally take days to
  complete in some cases.
! 
!      <p>So on some platforms <samp><span class="command">/bin/ksh</span></samp> is sufficient, on others it
! isn't.  See the host/target specific instructions for your platform, or
! use <samp><span class="command">bash</span></samp> to be sure.  Then set <samp><span class="env">CONFIG_SHELL</span></samp> in your
  environment to your &ldquo;good&rdquo; shell prior to running
! <samp><span class="command">configure</span></samp>/<samp><span class="command">make</span></samp>.
! 
!      <p><samp><span class="command">zsh</span></samp> is not a fully compliant POSIX shell and will not
  work when configuring GCC.
! 
!      <br><dt>A POSIX or SVR4 awk<dd>
! Necessary for creating some of the generated source files for GCC. 
  If in doubt, use a recent GNU awk version, as some of the older ones
  are broken.  GNU awk version 3.1.5 is known to work.
! 
!      <br><dt>GNU binutils<dd>
! Necessary in some circumstances, optional in others.  See the
  host/target specific instructions for your platform for the exact
  requirements.
! 
!      <br><dt>gzip version 1.2.4 (or later) or<dt>bzip2 version 1.0.2 (or later)<dd>
! Necessary to uncompress GCC <samp><span class="command">tar</span></samp> files when source code is
  obtained via FTP mirror sites.
! 
!      <br><dt>GNU make version 3.80 (or later)<dd>
! You must have GNU make installed to build GCC.
! 
!      <br><dt>GNU tar version 1.14 (or later)<dd>
! Necessary (only on some platforms) to untar the source code.  Many
! systems' <samp><span class="command">tar</span></samp> programs will also work, only try GNU
! <samp><span class="command">tar</span></samp> if you have problems.
! 
!      <br><dt>Perl version 5.6.1 (or later)<dd>
! Necessary when targeting Darwin, building &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo;,
! and not using <samp><span class="option">--disable-symvers</span></samp>. 
! Necessary when targeting Solaris 2 with Sun <samp><span class="command">ld</span></samp> and not using
! <samp><span class="option">--disable-symvers</span></samp>.  The bundled <samp><span class="command">perl</span></samp> in Solaris&nbsp;8
  and up works.
! 
!      <p>Necessary when regenerating <samp><span class="file">Makefile</span></samp> dependencies in libiberty. 
! Necessary when regenerating <samp><span class="file">libiberty/functions.texi</span></samp>. 
! Necessary when generating manpages from Texinfo manuals. 
  Used by various scripts to generate some files included in SVN (mainly
  Unicode-related and rarely changing) from source tables.
! 
!      <br><dt><samp><span class="command">jar</span></samp>, or InfoZIP (<samp><span class="command">zip</span></samp> and <samp><span class="command">unzip</span></samp>)<dd>
! Necessary to build libgcj, the GCJ runtime.
! 
  </dl>
  
!    <p>Several support libraries are necessary to build GCC, some are required,
  others optional.  While any sufficiently new version of required tools
  usually work, library requirements are generally stricter.  Newer
! versions may work in some cases, but it's safer to use the exact
  versions documented.  We appreciate bug reports about problems with
  newer versions, though.  If your OS vendor provides packages for the
  support libraries then using those packages may be the simplest way to
  install the libraries.
! 
!      <dl>
! <dt>GNU Multiple Precision Library (GMP) version 4.3.2 (or later)<dd>
! Necessary to build GCC.  If a GMP source distribution is found in a
! subdirectory of your GCC sources named <samp><span class="file">gmp</span></samp>, it will be built
  together with GCC.  Alternatively, if GMP is already installed but it
  is not in your library search path, you will have to configure with the
! <samp><span class="option">--with-gmp</span></samp> configure option.  See also <samp><span class="option">--with-gmp-lib</span></samp>
! and <samp><span class="option">--with-gmp-include</span></samp>.
! 
!      <br><dt>MPFR Library version 2.4.2 (or later)<dd>
! Necessary to build GCC.  It can be downloaded from
  <a href="http://www.mpfr.org/">http://www.mpfr.org/</a>.  If an MPFR source distribution is found
! in a subdirectory of your GCC sources named <samp><span class="file">mpfr</span></samp>, it will be
  built together with GCC.  Alternatively, if MPFR is already installed
  but it is not in your default library search path, the
! <samp><span class="option">--with-mpfr</span></samp> configure option should be used.  See also
! <samp><span class="option">--with-mpfr-lib</span></samp> and <samp><span class="option">--with-mpfr-include</span></samp>.
! 
!      <br><dt>MPC Library version 0.8.1 (or later)<dd>
! Necessary to build GCC.  It can be downloaded from
  <a href="http://www.multiprecision.org/">http://www.multiprecision.org/</a>.  If an MPC source distribution
! is found in a subdirectory of your GCC sources named <samp><span class="file">mpc</span></samp>, it
  will be built together with GCC.  Alternatively, if MPC is already
  installed but it is not in your default library search path, the
! <samp><span class="option">--with-mpc</span></samp> configure option should be used.  See also
! <samp><span class="option">--with-mpc-lib</span></samp> and <samp><span class="option">--with-mpc-include</span></samp>.
! 
!      <br><dt>isl Library version 0.16, 0.15, or 0.14.<dd>
! Necessary to build GCC with the Graphite loop optimizations. 
! It can be downloaded from <a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a>. 
  If an isl source distribution is found
! in a subdirectory of your GCC sources named <samp><span class="file">isl</span></samp>, it will be
! built together with GCC.  Alternatively, the <samp><span class="option">--with-isl</span></samp> configure
  option should be used if isl is not installed in your default library
  search path.
  
!    </dl>
! 
! <h3 class="heading"><a name="TOC1"></a>Tools/packages necessary for modifying GCC</h3>
! 
!      <dl>
! <dt>autoconf version 2.64<dt>GNU m4 version 1.4.6 (or later)<dd>
! Necessary when modifying <samp><span class="file">configure.ac</span></samp>, <samp><span class="file">aclocal.m4</span></samp>, etc. 
! to regenerate <samp><span class="file">configure</span></samp> and <samp><span class="file">config.in</span></samp> files.
! 
!      <br><dt>automake version 1.11.6<dd>
! Necessary when modifying a <samp><span class="file">Makefile.am</span></samp> file to regenerate its
! associated <samp><span class="file">Makefile.in</span></samp>.
! 
!      <p>Much of GCC does not use automake, so directly edit the <samp><span class="file">Makefile.in</span></samp>
! file.  Specifically this applies to the <samp><span class="file">gcc</span></samp>, <samp><span class="file">intl</span></samp>,
! <samp><span class="file">libcpp</span></samp>, <samp><span class="file">libiberty</span></samp>, <samp><span class="file">libobjc</span></samp> directories as well
  as any of their subdirectories.
! 
!      <p>For directories that use automake, GCC requires the latest release in
  the 1.11 series, which is currently 1.11.6.  When regenerating a directory
  to a newer version, please update all the directories using an older 1.11
  to the latest released version.
! 
!      <br><dt>gettext version 0.14.5 (or later)<dd>
! Needed to regenerate <samp><span class="file">gcc.pot</span></samp>.
! 
!      <br><dt>gperf version 2.7.2 (or later)<dd>
! Necessary when modifying <samp><span class="command">gperf</span></samp> input files, e.g. 
! <samp><span class="file">gcc/cp/cfns.gperf</span></samp> to regenerate its associated header file, e.g. 
! <samp><span class="file">gcc/cp/cfns.h</span></samp>.
! 
!      <br><dt>DejaGnu 1.4.4<dt>Expect<dt>Tcl<dd>
! Necessary to run the GCC testsuite; see the section on testing for
  details.  Tcl 8.6 has a known regression in RE pattern handling that
  make parts of the testsuite fail.  See
  <a href="http://core.tcl.tk/tcl/tktview/267b7e2334ee2e9de34c4b00d6e72e2f1997085f">http://core.tcl.tk/tcl/tktview/267b7e2334ee2e9de34c4b00d6e72e2f1997085f</a>
  for more information.  This bug has been fixed in 8.6.1.
! 
!      <br><dt>autogen version 5.5.4 (or later) and<dt>guile version 1.4.1 (or later)<dd>
! Necessary to regenerate <samp><span class="file">fixinc/fixincl.x</span></samp> from
! <samp><span class="file">fixinc/inclhack.def</span></samp> and <samp><span class="file">fixinc/*.tpl</span></samp>.
! 
!      <p>Necessary to run &lsquo;<samp><span class="samp">make check</span></samp>&rsquo; for <samp><span class="file">fixinc</span></samp>.
! 
!      <p>Necessary to regenerate the top level <samp><span class="file">Makefile.in</span></samp> file from
! <samp><span class="file">Makefile.tpl</span></samp> and <samp><span class="file">Makefile.def</span></samp>.
! 
!      <br><dt>Flex version 2.5.4 (or later)<dd>
! Necessary when modifying <samp><span class="file">*.l</span></samp> files.
! 
!      <p>Necessary to build GCC during development because the generated output
  files are not included in the SVN repository.  They are included in
  releases.
! 
!      <br><dt>Texinfo version 4.7 (or later)<dd>
! Necessary for running <samp><span class="command">makeinfo</span></samp> when modifying <samp><span class="file">*.texi</span></samp>
  files to test your changes.
! 
!      <p>Necessary for running <samp><span class="command">make dvi</span></samp> or <samp><span class="command">make pdf</span></samp> to
  create printable documentation in DVI or PDF format.  Texinfo version
! 4.8 or later is required for <samp><span class="command">make pdf</span></samp>.
! 
!      <p>Necessary to build GCC documentation during development because the
  generated output files are not included in the SVN repository.  They are
  included in releases.
! 
!      <br><dt>TeX (any working version)<dd>
! Necessary for running <samp><span class="command">texi2dvi</span></samp> and <samp><span class="command">texi2pdf</span></samp>, which
! are used when running <samp><span class="command">make dvi</span></samp> or <samp><span class="command">make pdf</span></samp> to create
  DVI or PDF files, respectively.
! 
!      <br><dt>Sphinx version 1.0 (or later)<dd>
! Necessary to regenerate <samp><span class="file">jit/docs/_build/texinfo</span></samp> from the <samp><span class="file">.rst</span></samp>
! files in the directories below <samp><span class="file">jit/docs</span></samp>.
! 
!      <br><dt>SVN (any version)<dt>SSH (any version)<dd>
! Necessary to access the SVN repository.  Public releases and weekly
  snapshots of the development sources are also available via FTP.
! 
!      <br><dt>GNU diffutils version 2.7 (or later)<dd>
! Useful when submitting patches for the GCC source code.
! 
!      <br><dt>patch version 2.5.4 (or later)<dd>
! Necessary when applying patches, created with <samp><span class="command">diff</span></samp>, to one's
  own sources.
! 
!      <br><dt>ecj1<dt>gjavah<dd>
! If you wish to modify <samp><span class="file">.java</span></samp> files in libjava, you will need to
! configure with <samp><span class="option">--enable-java-maintainer-mode</span></samp>, and you will need
! to have executables named <samp><span class="command">ecj1</span></samp> and <samp><span class="command">gjavah</span></samp> in your path. 
! The <samp><span class="command">ecj1</span></samp> executable should run the Eclipse Java compiler via
  the GCC-specific entry point.  You can download a suitable jar from
  <a href="ftp://sourceware.org/pub/java/">ftp://sourceware.org/pub/java/</a>, or by running the script
! <samp><span class="command">contrib/download_ecj</span></samp>.
! 
!      <br><dt>antlr.jar version 2.7.1 (or later)<dt>antlr binary<dd>
! If you wish to build the <samp><span class="command">gjdoc</span></samp> binary in libjava, you will
! need to have an <samp><span class="file">antlr.jar</span></samp> library available. The library is
  searched for in system locations but can be specified with
! <samp><span class="option">--with-antlr-jar=</span></samp> instead.  When configuring with
! <samp><span class="option">--enable-java-maintainer-mode</span></samp>, you will need to have one of
! the executables named <samp><span class="command">cantlr</span></samp>, <samp><span class="command">runantlr</span></samp> or
! <samp><span class="command">antlr</span></samp> in your path.
! 
  </dl>
  
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
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--- 1,421 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
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  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
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! A GNU Manual
  
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! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
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! <head>
! <title>Installing GCC</title>
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! 
! 
  </head>
  
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
  
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Prerequisites"></a>
! 
! <p>GCC requires that various tools and packages be available for use in the
! build procedure.  Modifying GCC sources requires additional tools
! described below.
! </p>
! <a name="Tools_002fpackages-necessary-for-building-GCC"></a>
! <h3 class="heading">Tools/packages necessary for building GCC</h3>
! <dl compact="compact">
! <dt>ISO C++98 compiler</dt>
! <dd><p>Necessary to bootstrap GCC, although versions of GCC prior
  to 4.8 also allow bootstrapping with a ISO C89 compiler and versions
  of GCC prior to 3.4 also allow bootstrapping with a traditional
  (K&amp;R) C compiler.
! </p>
! <p>To build all languages in a cross-compiler or other configuration where
  3-stage bootstrap is not performed, you need to start with an existing
  GCC binary (version 3.4 or later) because source code for language
  frontends other than C might use GCC extensions.
! </p>
! <p>Note that to bootstrap GCC with versions of GCC earlier than 3.4, you
! may need to use <samp>--disable-stage1-checking</samp>, though
  bootstrapping the compiler with such earlier compilers is strongly
  discouraged.
! </p>
! </dd>
! <dt>C standard library and headers</dt>
! <dd>
! <p>In order to build GCC, the C standard library and headers must be present
  for all target variants for which target libraries will be built (and not
  only the variant of the host C++ compiler).
! </p>
! <p>This affects the popular &lsquo;<samp>x86_64-unknown-linux-gnu</samp>&rsquo; platform (among
! other multilib targets), for which 64-bit (&lsquo;<samp>x86_64</samp>&rsquo;) and 32-bit
! (&lsquo;<samp>i386</samp>&rsquo;) libc headers are usually packaged separately. If you do a
! build of a native compiler on &lsquo;<samp>x86_64-unknown-linux-gnu</samp>&rsquo;, make sure you
  either have the 32-bit libc developer package properly installed (the exact
  name of the package depends on your distro) or you must build GCC as a
  64-bit only compiler by configuring with the option
! <samp>--disable-multilib</samp>.  Otherwise, you may encounter an error such as
! &lsquo;<samp>fatal error: gnu/stubs-32.h: No such file</samp>&rsquo;
! </p>
! </dd>
! <dt>GNAT</dt>
! <dd>
! <p>In order to build the Ada compiler (GNAT) you must already have GNAT
  installed because portions of the Ada frontend are written in Ada (with
  GNAT extensions.)  Refer to the Ada installation instructions for more
  specific information.
! </p>
! </dd>
! <dt>A &ldquo;working&rdquo; POSIX compatible shell, or GNU bash</dt>
! <dd>
! <p>Necessary when running <code>configure</code> because some
! <code>/bin/sh</code> shells have bugs and may crash when configuring the
! target libraries.  In other cases, <code>/bin/sh</code> or <code>ksh</code>
  have disastrous corner-case performance problems.  This
! can cause target <code>configure</code> runs to literally take days to
  complete in some cases.
! </p>
! <p>So on some platforms <code>/bin/ksh</code> is sufficient, on others it
! isn&rsquo;t.  See the host/target specific instructions for your platform, or
! use <code>bash</code> to be sure.  Then set <code>CONFIG_SHELL</code> in your
  environment to your &ldquo;good&rdquo; shell prior to running
! <code>configure</code>/<code>make</code>.
! </p>
! <p><code>zsh</code> is not a fully compliant POSIX shell and will not
  work when configuring GCC.
! </p>
! </dd>
! <dt>A POSIX or SVR4 awk</dt>
! <dd>
! <p>Necessary for creating some of the generated source files for GCC.
  If in doubt, use a recent GNU awk version, as some of the older ones
  are broken.  GNU awk version 3.1.5 is known to work.
! </p>
! </dd>
! <dt>GNU binutils</dt>
! <dd>
! <p>Necessary in some circumstances, optional in others.  See the
  host/target specific instructions for your platform for the exact
  requirements.
! </p>
! </dd>
! <dt>gzip version 1.2.4 (or later) or</dt>
! <dt>bzip2 version 1.0.2 (or later)</dt>
! <dd>
! <p>Necessary to uncompress GCC <code>tar</code> files when source code is
  obtained via FTP mirror sites.
! </p>
! </dd>
! <dt>GNU make version 3.80 (or later)</dt>
! <dd>
! <p>You must have GNU make installed to build GCC.
! </p>
! </dd>
! <dt>GNU tar version 1.14 (or later)</dt>
! <dd>
! <p>Necessary (only on some platforms) to untar the source code.  Many
! systems&rsquo; <code>tar</code> programs will also work, only try GNU
! <code>tar</code> if you have problems.
! </p>
! </dd>
! <dt>Perl version 5.6.1 (or later)</dt>
! <dd>
! <p>Necessary when targeting Darwin, building &lsquo;<samp>libstdc++</samp>&rsquo;,
! and not using <samp>--disable-symvers</samp>.
! Necessary when targeting Solaris 2 with Sun <code>ld</code> and not using
! <samp>--disable-symvers</samp>.  The bundled <code>perl</code> in Solaris&nbsp;8
  and up works.
! </p>
! <p>Necessary when regenerating <samp>Makefile</samp> dependencies in libiberty.
! Necessary when regenerating <samp>libiberty/functions.texi</samp>.
! Necessary when generating manpages from Texinfo manuals.
  Used by various scripts to generate some files included in SVN (mainly
  Unicode-related and rarely changing) from source tables.
! </p>
! </dd>
! <dt><code>jar</code>, or InfoZIP (<code>zip</code> and <code>unzip</code>)</dt>
! <dd>
! <p>Necessary to build libgcj, the GCJ runtime.
! </p>
! </dd>
  </dl>
  
! <p>Several support libraries are necessary to build GCC, some are required,
  others optional.  While any sufficiently new version of required tools
  usually work, library requirements are generally stricter.  Newer
! versions may work in some cases, but it&rsquo;s safer to use the exact
  versions documented.  We appreciate bug reports about problems with
  newer versions, though.  If your OS vendor provides packages for the
  support libraries then using those packages may be the simplest way to
  install the libraries.
! </p>
! <dl compact="compact">
! <dt>GNU Multiple Precision Library (GMP) version 4.3.2 (or later)</dt>
! <dd>
! <p>Necessary to build GCC.  If a GMP source distribution is found in a
! subdirectory of your GCC sources named <samp>gmp</samp>, it will be built
  together with GCC.  Alternatively, if GMP is already installed but it
  is not in your library search path, you will have to configure with the
! <samp>--with-gmp</samp> configure option.  See also <samp>--with-gmp-lib</samp>
! and <samp>--with-gmp-include</samp>.
! </p>
! </dd>
! <dt>MPFR Library version 2.4.2 (or later)</dt>
! <dd>
! <p>Necessary to build GCC.  It can be downloaded from
  <a href="http://www.mpfr.org/">http://www.mpfr.org/</a>.  If an MPFR source distribution is found
! in a subdirectory of your GCC sources named <samp>mpfr</samp>, it will be
  built together with GCC.  Alternatively, if MPFR is already installed
  but it is not in your default library search path, the
! <samp>--with-mpfr</samp> configure option should be used.  See also
! <samp>--with-mpfr-lib</samp> and <samp>--with-mpfr-include</samp>.
! </p>
! </dd>
! <dt>MPC Library version 0.8.1 (or later)</dt>
! <dd>
! <p>Necessary to build GCC.  It can be downloaded from
  <a href="http://www.multiprecision.org/">http://www.multiprecision.org/</a>.  If an MPC source distribution
! is found in a subdirectory of your GCC sources named <samp>mpc</samp>, it
  will be built together with GCC.  Alternatively, if MPC is already
  installed but it is not in your default library search path, the
! <samp>--with-mpc</samp> configure option should be used.  See also
! <samp>--with-mpc-lib</samp> and <samp>--with-mpc-include</samp>.
! </p>
! </dd>
! <dt>isl Library version 0.16, 0.15, or 0.14.</dt>
! <dd>
! <p>Necessary to build GCC with the Graphite loop optimizations.
! It can be downloaded from <a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a>.
  If an isl source distribution is found
! in a subdirectory of your GCC sources named <samp>isl</samp>, it will be
! built together with GCC.  Alternatively, the <samp>--with-isl</samp> configure
  option should be used if isl is not installed in your default library
  search path.
+ </p>
+ </dd>
+ </dl>
  
! <a name="Tools_002fpackages-necessary-for-modifying-GCC"></a>
! <h3 class="heading">Tools/packages necessary for modifying GCC</h3>
! <dl compact="compact">
! <dt>autoconf version 2.64</dt>
! <dt>GNU m4 version 1.4.6 (or later)</dt>
! <dd>
! <p>Necessary when modifying <samp>configure.ac</samp>, <samp>aclocal.m4</samp>, etc.
! to regenerate <samp>configure</samp> and <samp>config.in</samp> files.
! </p>
! </dd>
! <dt>automake version 1.11.6</dt>
! <dd>
! <p>Necessary when modifying a <samp>Makefile.am</samp> file to regenerate its
! associated <samp>Makefile.in</samp>.
! </p>
! <p>Much of GCC does not use automake, so directly edit the <samp>Makefile.in</samp>
! file.  Specifically this applies to the <samp>gcc</samp>, <samp>intl</samp>,
! <samp>libcpp</samp>, <samp>libiberty</samp>, <samp>libobjc</samp> directories as well
  as any of their subdirectories.
! </p>
! <p>For directories that use automake, GCC requires the latest release in
  the 1.11 series, which is currently 1.11.6.  When regenerating a directory
  to a newer version, please update all the directories using an older 1.11
  to the latest released version.
! </p>
! </dd>
! <dt>gettext version 0.14.5 (or later)</dt>
! <dd>
! <p>Needed to regenerate <samp>gcc.pot</samp>.
! </p>
! </dd>
! <dt>gperf version 2.7.2 (or later)</dt>
! <dd>
! <p>Necessary when modifying <code>gperf</code> input files, e.g.
! <samp>gcc/cp/cfns.gperf</samp> to regenerate its associated header file, e.g.
! <samp>gcc/cp/cfns.h</samp>.
! </p>
! </dd>
! <dt>DejaGnu 1.4.4</dt>
! <dt>Expect</dt>
! <dt>Tcl</dt>
! <dd>
! <p>Necessary to run the GCC testsuite; see the section on testing for
  details.  Tcl 8.6 has a known regression in RE pattern handling that
  make parts of the testsuite fail.  See
  <a href="http://core.tcl.tk/tcl/tktview/267b7e2334ee2e9de34c4b00d6e72e2f1997085f">http://core.tcl.tk/tcl/tktview/267b7e2334ee2e9de34c4b00d6e72e2f1997085f</a>
  for more information.  This bug has been fixed in 8.6.1.
! </p>
! </dd>
! <dt>autogen version 5.5.4 (or later) and</dt>
! <dt>guile version 1.4.1 (or later)</dt>
! <dd>
! <p>Necessary to regenerate <samp>fixinc/fixincl.x</samp> from
! <samp>fixinc/inclhack.def</samp> and <samp>fixinc/*.tpl</samp>.
! </p>
! <p>Necessary to run &lsquo;<samp>make check</samp>&rsquo; for <samp>fixinc</samp>.
! </p>
! <p>Necessary to regenerate the top level <samp>Makefile.in</samp> file from
! <samp>Makefile.tpl</samp> and <samp>Makefile.def</samp>.
! </p>
! </dd>
! <dt>Flex version 2.5.4 (or later)</dt>
! <dd>
! <p>Necessary when modifying <samp>*.l</samp> files.
! </p>
! <p>Necessary to build GCC during development because the generated output
  files are not included in the SVN repository.  They are included in
  releases.
! </p>
! </dd>
! <dt>Texinfo version 4.7 (or later)</dt>
! <dd>
! <p>Necessary for running <code>makeinfo</code> when modifying <samp>*.texi</samp>
  files to test your changes.
! </p>
! <p>Necessary for running <code>make dvi</code> or <code>make pdf</code> to
  create printable documentation in DVI or PDF format.  Texinfo version
! 4.8 or later is required for <code>make pdf</code>.
! </p>
! <p>Necessary to build GCC documentation during development because the
  generated output files are not included in the SVN repository.  They are
  included in releases.
! </p>
! </dd>
! <dt>TeX (any working version)</dt>
! <dd>
! <p>Necessary for running <code>texi2dvi</code> and <code>texi2pdf</code>, which
! are used when running <code>make dvi</code> or <code>make pdf</code> to create
  DVI or PDF files, respectively.
! </p>
! </dd>
! <dt>Sphinx version 1.0 (or later)</dt>
! <dd>
! <p>Necessary to regenerate <samp>jit/docs/_build/texinfo</samp> from the <samp>.rst</samp>
! files in the directories below <samp>jit/docs</samp>.
! </p>
! </dd>
! <dt>SVN (any version)</dt>
! <dt>SSH (any version)</dt>
! <dd>
! <p>Necessary to access the SVN repository.  Public releases and weekly
  snapshots of the development sources are also available via FTP.
! </p>
! </dd>
! <dt>GNU diffutils version 2.7 (or later)</dt>
! <dd>
! <p>Useful when submitting patches for the GCC source code.
! </p>
! </dd>
! <dt>patch version 2.5.4 (or later)</dt>
! <dd>
! <p>Necessary when applying patches, created with <code>diff</code>, to one&rsquo;s
  own sources.
! </p>
! </dd>
! <dt>ecj1</dt>
! <dt>gjavah</dt>
! <dd>
! <p>If you wish to modify <samp>.java</samp> files in libjava, you will need to
! configure with <samp>--enable-java-maintainer-mode</samp>, and you will need
! to have executables named <code>ecj1</code> and <code>gjavah</code> in your path.
! The <code>ecj1</code> executable should run the Eclipse Java compiler via
  the GCC-specific entry point.  You can download a suitable jar from
  <a href="ftp://sourceware.org/pub/java/">ftp://sourceware.org/pub/java/</a>, or by running the script
! <code>contrib/download_ecj</code>.
! </p>
! </dd>
! <dt>antlr.jar version 2.7.1 (or later)</dt>
! <dt>antlr binary</dt>
! <dd>
! <p>If you wish to build the <code>gjdoc</code> binary in libjava, you will
! need to have an <samp>antlr.jar</samp> library available. The library is
  searched for in system locations but can be specified with
! <samp>--with-antlr-jar=</samp> instead.  When configuring with
! <samp>--enable-java-maintainer-mode</samp>, you will need to have one of
! the executables named <code>cantlr</code>, <code>runantlr</code> or
! <code>antlr</code> in your path.
! </p>
! </dd>
  </dl>
  
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
+ 
+ 
+ 
  
  
+ 
+ 
+ 
+ 
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/specific.html gcc-6.5.0/INSTALL/specific.html
*** gcc-6.4.0/INSTALL/specific.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/specific.html	Fri Oct 26 09:56:37 2018
***************
*** 1,699 ****
! <html lang="en">
! <head>
! <title>Host/Target specific installation notes for GCC</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Host/Target specific installation notes for GCC">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
! <meta http-equiv="Content-Style-Type" content="text/css">
! <style type="text/css"><!--
!   pre.display { font-family:inherit }
!   pre.format  { font-family:inherit }
!   pre.smalldisplay { font-family:inherit; font-size:smaller }
!   pre.smallformat  { font-family:inherit; font-size:smaller }
!   pre.smallexample { font-size:smaller }
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! --></style>
  </head>
- <body>
- <h1 class="settitle">Host/Target specific installation notes for GCC</h1>
- <a name="index-Specific-1"></a><a name="index-Specific-installation-notes-2"></a><a name="index-Target-specific-installation-3"></a><a name="index-Host-specific-installation-4"></a><a name="index-Target-specific-installation-notes-5"></a>
- Please read this document carefully <em>before</em> installing the
- GNU Compiler Collection on your machine.
  
!    <p>Note that this list of install notes is <em>not</em> a list of supported
! hosts or targets.  Not all supported hosts and targets are listed
! here, only the ones that require host-specific or target-specific
! information have to.
  
-      <ul>
- <li><a href="#aarch64-x-x">aarch64*-*-*</a>
- <li><a href="#alpha-x-x">alpha*-*-*</a>
- <li><a href="#alpha-dec-osf51">alpha*-dec-osf5.1</a>
- <li><a href="#amd64-x-solaris210">amd64-*-solaris2.10</a>
- <li><a href="#arm-x-eabi">arm-*-eabi</a>
- <li><a href="#avr">avr</a>
- <li><a href="#bfin">Blackfin</a>
- <li><a href="#dos">DOS</a>
- <li><a href="#x-x-freebsd">*-*-freebsd*</a>
- <li><a href="#h8300-hms">h8300-hms</a>
- <li><a href="#hppa-hp-hpux">hppa*-hp-hpux*</a>
- <li><a href="#hppa-hp-hpux10">hppa*-hp-hpux10</a>
- <li><a href="#hppa-hp-hpux11">hppa*-hp-hpux11</a>
- <li><a href="#x-x-linux-gnu">*-*-linux-gnu</a>
- <li><a href="#ix86-x-linux">i?86-*-linux*</a>
- <li><a href="#ix86-x-solaris210">i?86-*-solaris2.10</a>
- <li><a href="#ia64-x-linux">ia64-*-linux</a>
- <li><a href="#ia64-x-hpux">ia64-*-hpux*</a>
- <li><a href="#x-ibm-aix">*-ibm-aix*</a>
- <li><a href="#iq2000-x-elf">iq2000-*-elf</a>
- <li><a href="#lm32-x-elf">lm32-*-elf</a>
- <li><a href="#lm32-x-uclinux">lm32-*-uclinux</a>
- <li><a href="#m32c-x-elf">m32c-*-elf</a>
- <li><a href="#m32r-x-elf">m32r-*-elf</a>
- <li><a href="#m68k-x-x">m68k-*-*</a>
- <li><a href="#m68k-uclinux">m68k-uclinux</a>
- <li><a href="#mep-x-elf">mep-*-elf</a>
- <li><a href="#microblaze-x-elf">microblaze-*-elf</a>
- <li><a href="#mips-x-x">mips-*-*</a>
- <li><a href="#mips-sgi-irix5">mips-sgi-irix5</a>
- <li><a href="#mips-sgi-irix6">mips-sgi-irix6</a>
- <li><a href="#nds32le-x-elf">nds32le-*-elf</a>
- <li><a href="#nds32be-x-elf">nds32be-*-elf</a>
- <li><a href="#nvptx-x-none">nvptx-*-none</a>
- <li><a href="#powerpc-x-x">powerpc*-*-*</a>
- <li><a href="#powerpc-x-darwin">powerpc-*-darwin*</a>
- <li><a href="#powerpc-x-elf">powerpc-*-elf</a>
- <li><a href="#powerpc-x-linux-gnu">powerpc*-*-linux-gnu*</a>
- <li><a href="#powerpc-x-netbsd">powerpc-*-netbsd*</a>
- <li><a href="#powerpc-x-eabisim">powerpc-*-eabisim</a>
- <li><a href="#powerpc-x-eabi">powerpc-*-eabi</a>
- <li><a href="#powerpcle-x-elf">powerpcle-*-elf</a>
- <li><a href="#powerpcle-x-eabisim">powerpcle-*-eabisim</a>
- <li><a href="#powerpcle-x-eabi">powerpcle-*-eabi</a>
- <li><a href="#s390-x-linux">s390-*-linux*</a>
- <li><a href="#s390x-x-linux">s390x-*-linux*</a>
- <li><a href="#s390x-ibm-tpf">s390x-ibm-tpf*</a>
- <li><a href="#x-x-solaris2">*-*-solaris2*</a>
- <li><a href="#sparc-x-x">sparc*-*-*</a>
- <li><a href="#sparc-sun-solaris2">sparc-sun-solaris2*</a>
- <li><a href="#sparc-sun-solaris210">sparc-sun-solaris2.10</a>
- <li><a href="#sparc-x-linux">sparc-*-linux*</a>
- <li><a href="#sparc64-x-solaris2">sparc64-*-solaris2*</a>
- <li><a href="#sparcv9-x-solaris2">sparcv9-*-solaris2*</a>
- <li><a href="#c6x-x-x">c6x-*-*</a>
- <li><a href="#tilegx-x-linux">tilegx-*-linux*</a>
- <li><a href="#tilegxbe-x-linux">tilegxbe-*-linux*</a>
- <li><a href="#tilepro-x-linux">tilepro-*-linux*</a>
- <li><a href="#visium-x-elf">visium-*-elf</a>
- <li><a href="#x-x-vxworks">*-*-vxworks*</a>
- <li><a href="#x86-64-x-x">x86_64-*-*</a> amd64-*-*
- <li><a href="#x86-64-x-solaris210">x86_64-*-solaris2.1[0-9]*</a>
- <li><a href="#xtensa-x-elf">xtensa*-*-elf</a>
- <li><a href="#xtensa-x-linux">xtensa*-*-linux*</a>
- <li><a href="#windows">Microsoft Windows</a>
- <li><a href="#x-x-cygwin">*-*-cygwin</a>
- <li><a href="#x-x-interix">*-*-interix</a>
- <li><a href="#x-x-mingw32">*-*-mingw32</a>
- <li><a href="#os2">OS/2</a>
- <li><a href="#older">Older systems</a>
- </ul>
  
-      <ul>
- <li><a href="#elf">all ELF targets</a> (SVR4, Solaris 2, etc.) 
- </ul>
  
-    <p><!-- -------- host/target specific issues start here ---------------- -->
- <hr /><a name="aarch64_002dx_002dx"></a>
  
- <h3 class="heading"><a name="TOC0"></a>aarch64*-*-*</h3>
  
- <p>Binutils pre 2.24 does not have support for selecting <samp><span class="option">-mabi</span></samp> and
- does not support ILP32.  If it is used to build GCC 4.9 or later, GCC will
- not support option <samp><span class="option">-mabi=ilp32</span></samp>.
  
!    <p>To enable a workaround for the Cortex-A53 erratum number 835769 by default
  (for all CPUs regardless of -mcpu option given) at configure time use the
! <samp><span class="option">--enable-fix-cortex-a53-835769</span></samp> option.  This will enable the fix by
  default and can be explicitly disabled during compilation by passing the
! <samp><span class="option">-mno-fix-cortex-a53-835769</span></samp> option.  Conversely,
! <samp><span class="option">--disable-fix-cortex-a53-835769</span></samp> will disable the workaround by
  default.  The workaround is disabled by default if neither of
! <samp><span class="option">--enable-fix-cortex-a53-835769</span></samp> or
! <samp><span class="option">--disable-fix-cortex-a53-835769</span></samp> is given at configure time.
! 
!    <p>To enable a workaround for the Cortex-A53 erratum number 843419 by default
  (for all CPUs regardless of -mcpu option given) at configure time use the
! <samp><span class="option">--enable-fix-cortex-a53-843419</span></samp> option.  This workaround is applied at
  link time.  Enabling the workaround will cause GCC to pass the relevant option
  to the linker.  It can be explicitly disabled during compilation by passing the
! <samp><span class="option">-mno-fix-cortex-a53-843419</span></samp> option.  Conversely,
! <samp><span class="option">--disable-fix-cortex-a53-843419</span></samp> will disable the workaround by default. 
  The workaround is disabled by default if neither of
! <samp><span class="option">--enable-fix-cortex-a53-843419</span></samp> or
! <samp><span class="option">--disable-fix-cortex-a53-843419</span></samp> is given at configure time.
! 
!    <p><hr /><a name="alpha_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC1"></a>alpha*-*-*</h3>
! 
  <p>This section contains general configuration information for all
  alpha-based platforms using ELF (in particular, ignore this section for
  DEC OSF/1, Digital UNIX and Tru64 UNIX).  In addition to reading this
  section, please read all other sections that match your target.
! 
!    <p>We require binutils 2.11.2 or newer. 
  Previous binutils releases had a number of problems with DWARF 2
  debugging information, not the least of which is incorrect linking of
  shared libraries.
! 
!    <p><hr /><a name="alpha_002ddec_002dosf51"></a>
! 
! <h3 class="heading"><a name="TOC2"></a>alpha*-dec-osf5.1</h3>
! 
  <p>Systems using processors that implement the DEC Alpha architecture and
  are running the DEC/Compaq/HP Unix (DEC OSF/1, Digital UNIX, or Compaq/HP
  Tru64 UNIX) operating system, for example the DEC Alpha AXP systems.
! 
!    <p>Support for Tru64 UNIX V5.1 has been removed in GCC 4.8.  As of GCC 4.6,
  support for Tru64 UNIX V4.0 and V5.0 has been removed.  As of GCC 3.2,
  versions before <code>alpha*-dec-osf4</code> are no longer supported.  (These
  are the versions which identify themselves as DEC OSF/1.)
  
!    <p><hr /><a name="amd64_002dx_002dsolaris210"></a>
! 
! <h3 class="heading"><a name="TOC3"></a>amd64-*-solaris2.1[0-9]*</h3>
! 
! <p>This is a synonym for &lsquo;<samp><span class="samp">x86_64-*-solaris2.1[0-9]*</span></samp>&rsquo;.
! 
!    <p><hr /><a name="arc_002dx_002delf32"></a>
! 
! <h3 class="heading"><a name="TOC4"></a>arc-*-elf32</h3>
! 
! <p>Use &lsquo;<samp><span class="samp">configure --target=arc-elf32 --with-cpu=</span><var>cpu</var><span class="samp"> --enable-languages="c,c++"</span></samp>&rsquo;
! to configure GCC, with <var>cpu</var> being one of &lsquo;<samp><span class="samp">arc600</span></samp>&rsquo;, &lsquo;<samp><span class="samp">arc601</span></samp>&rsquo;,
! or &lsquo;<samp><span class="samp">arc700</span></samp>&rsquo;.
! 
!    <p><hr /><a name="arc_002dlinux_002duclibc"></a>
! 
! <h3 class="heading"><a name="TOC5"></a>arc-linux-uclibc</h3>
! 
! <p>Use &lsquo;<samp><span class="samp">configure --target=arc-linux-uclibc --with-cpu=arc700 --enable-languages="c,c++"</span></samp>&rsquo; to configure GCC.
! 
!    <p><hr /><a name="arm_002dx_002deabi"></a>
! 
! <h3 class="heading"><a name="TOC6"></a>arm-*-eabi</h3>
  
  <p>ARM-family processors.  Subtargets that use the ELF object format
  require GNU binutils 2.13 or newer.  Such subtargets include:
  <code>arm-*-netbsdelf</code>, <code>arm-*-*linux-*</code>
  and <code>arm-*-rtemseabi</code>.
! 
!    <p>Building the Ada frontend commonly fails (an infinite loop executing
  <code>xsinfo</code>) if the host compiler is GNAT 4.8.  Host compilers built from the
  GNAT 4.6, 4.9 or 5 release branches are known to succeed.
! 
!    <p><hr /><a name="avr"></a>
! 
! <h3 class="heading"><a name="TOC7"></a>avr</h3>
! 
  <p>ATMEL AVR-family micro controllers.  These are used in embedded
! applications.  There are no standard Unix configurations. 
  See &ldquo;AVR Options&rdquo; in the main manual
  for the list of supported MCU types.
! 
!    <p>Use &lsquo;<samp><span class="samp">configure --target=avr --enable-languages="c"</span></samp>&rsquo; to configure GCC.
! 
!    <p>Further installation notes and other useful information about AVR tools
  can also be obtained from:
  
!      <ul>
! <li><a href="http://www.nongnu.org/avr/">http://www.nongnu.org/avr/</a>
! <li><a href="http://www.amelek.gda.pl/avr/">http://www.amelek.gda.pl/avr/</a>
! </ul>
! 
!    <p>We <em>strongly</em> recommend using binutils 2.13 or newer.
! 
!    <p>The following error:
! <pre class="smallexample">     Error: register required
! </pre>
!    <p>indicates that you should upgrade to a newer version of the binutils.
! 
!    <p><hr /><a name="bfin"></a>
! 
! <h3 class="heading"><a name="TOC8"></a>Blackfin</h3>
  
! <p>The Blackfin processor, an Analog Devices DSP. 
  See &ldquo;Blackfin Options&rdquo; in the main manual
! 
!    <p>More information, and a version of binutils with support for this processor,
  is available at <a href="http://blackfin.uclinux.org">http://blackfin.uclinux.org</a>
! 
!    <p><hr /><a name="cr16"></a>
! 
! <h3 class="heading"><a name="TOC9"></a>CR16</h3>
! 
  <p>The CR16 CompactRISC architecture is a 16-bit architecture. This
  architecture is used in embedded applications.
  
!    <p>See &ldquo;CR16 Options&rdquo; in the main manual for a list of CR16-specific options.
! 
!    <p>Use &lsquo;<samp><span class="samp">configure --target=cr16-elf --enable-languages=c,c++</span></samp>&rsquo; to configure
! GCC for building a CR16 elf cross-compiler.
! 
!    <p>Use &lsquo;<samp><span class="samp">configure --target=cr16-uclinux --enable-languages=c,c++</span></samp>&rsquo; to
! configure GCC for building a CR16 uclinux cross-compiler.
! 
!    <p><hr /><a name="cris"></a>
! 
! <h3 class="heading"><a name="TOC10"></a>CRIS</h3>
! 
  <p>CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip
  series.  These are used in embedded applications.
! 
!    <p>See &ldquo;CRIS Options&rdquo; in the main manual
  for a list of CRIS-specific options.
! 
!    <p>There are a few different CRIS targets:
!      <dl>
! <dt><code>cris-axis-elf</code><dd>Mainly for monolithic embedded systems.  Includes a multilib for the
! &lsquo;<samp><span class="samp">v10</span></samp>&rsquo; core used in &lsquo;<samp><span class="samp">ETRAX 100 LX</span></samp>&rsquo;. 
! <br><dt><code>cris-axis-linux-gnu</code><dd>A GNU/Linux port for the CRIS architecture, currently targeting
! &lsquo;<samp><span class="samp">ETRAX 100 LX</span></samp>&rsquo; by default. 
  </dl>
  
!    <p>For <code>cris-axis-elf</code> you need binutils 2.11
  or newer.  For <code>cris-axis-linux-gnu</code> you need binutils 2.12 or newer.
! 
!    <p>Pre-packaged tools can be obtained from
  <a href="ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/">ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/</a>.  More
  information about this platform is available at
  <a href="http://developer.axis.com/">http://developer.axis.com/</a>.
! 
!    <p><hr /><a name="dos"></a>
! 
! <h3 class="heading"><a name="TOC11"></a>DOS</h3>
! 
  <p>Please have a look at the <a href="binaries.html">binaries page</a>.
! 
!    <p>You cannot install GCC by itself on MSDOS; it will not compile under
  any MSDOS compiler except itself.  You need to get the complete
  compilation package DJGPP, which includes binaries as well as sources,
  and includes all the necessary compilation tools and libraries.
! 
!    <p><hr /><a name="epiphany_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC12"></a>epiphany-*-elf</h3>
! 
! <p>Adapteva Epiphany. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="x_002dx_002dfreebsd"></a>
! 
! <h3 class="heading"><a name="TOC13"></a>*-*-freebsd*</h3>
! 
  <p>Support for FreeBSD 1 was discontinued in GCC 3.2.  Support for
  FreeBSD 2 (and any mutant a.out variants of FreeBSD 3) was
  discontinued in GCC 4.0.
! 
!    <p>In order to better utilize FreeBSD base system functionality and match
  the configuration of the system compiler, GCC 4.5 and above as well as
  GCC 4.4 past 2010-06-20 leverage SSP support in libc (which is present
  on FreeBSD 7 or later) and the use of <code>__cxa_atexit</code> by default
  (on FreeBSD 6 or later).  The use of <code>dl_iterate_phdr</code> inside
! <samp><span class="file">libgcc_s.so.1</span></samp> and boehm-gc (on FreeBSD 7 or later) is enabled
  by GCC 4.5 and above.
! 
!    <p>We support FreeBSD using the ELF file format with DWARF 2 debugging
! for all CPU architectures.  You may use <samp><span class="option">-gstabs</span></samp> instead of
! <samp><span class="option">-g</span></samp>, if you really want the old debugging format.  There are
  no known issues with mixing object files and libraries with different
  debugging formats.  Otherwise, this release of GCC should now match
  more of the configuration used in the stock FreeBSD configuration of
! GCC.  In particular, <samp><span class="option">--enable-threads</span></samp> is now configured by
  default.  However, as a general user, do not attempt to replace the
  system compiler with this release.  Known to bootstrap and check with
  good results on FreeBSD 7.2-STABLE.  In the past, known to bootstrap
  and check with good results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4,
  4.5, 4.8, 4.9 and 5-CURRENT.
! 
!    <p>The version of binutils installed in <samp><span class="file">/usr/bin</span></samp> probably works
  with this release of GCC.  Bootstrapping against the latest GNU
! binutils and/or the version found in <samp><span class="file">/usr/ports/devel/binutils</span></samp> has
  been known to enable additional features and improve overall testsuite
  results.  However, it is currently known that boehm-gc (which itself
  is required for java) may not configure properly on FreeBSD prior to
  the FreeBSD 7.0 release with GNU binutils after 2.16.1.
! 
!    <p><hr /><a name="ft32_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC14"></a>ft32-*-elf</h3>
! 
! <p>The FT32 processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="h8300_002dhms"></a>
! 
! <h3 class="heading"><a name="TOC15"></a>h8300-hms</h3>
! 
  <p>Renesas H8/300 series of processors.
! 
!    <p>Please have a look at the <a href="binaries.html">binaries page</a>.
! 
!    <p>The calling convention and structure layout has changed in release 2.6. 
  All code must be recompiled.  The calling convention now passes the
  first three arguments in function calls in registers.  Structures are no
  longer a multiple of 2 bytes.
! 
!    <p><hr /><a name="hppa_002dhp_002dhpux"></a>
! 
! <h3 class="heading"><a name="TOC16"></a>hppa*-hp-hpux*</h3>
! 
  <p>Support for HP-UX version 9 and older was discontinued in GCC 3.4.
! 
!    <p>We require using gas/binutils on all hppa platforms.  Version 2.19 or
  later is recommended.
! 
!    <p>It may be helpful to configure GCC with the
! <a href="./configure.html#with-gnu-as"><samp><span class="option">--with-gnu-as</span></samp></a> and
! <samp><span class="option">--with-as=...</span></samp> options to ensure that GCC can find GAS.
! 
!    <p>The HP assembler should not be used with GCC.  It is rarely tested and may
! not work.  It shouldn't be used with any languages other than C due to its
  many limitations.
! 
!    <p>Specifically, <samp><span class="option">-g</span></samp> does not work (HP-UX uses a peculiar debugging
  format which GCC does not know about).  It also inserts timestamps
  into each object file it creates, causing the 3-stage comparison test to
  fail during a bootstrap.  You should be able to continue by saying
! &lsquo;<samp><span class="samp">make all-host all-target</span></samp>&rsquo; after getting the failure from &lsquo;<samp><span class="samp">make</span></samp>&rsquo;.
! 
!    <p>Various GCC features are not supported.  For example, it does not support weak
  symbols or alias definitions.  As a result, explicit template instantiations
  are required when using C++.  This makes it difficult if not impossible to
  build many C++ applications.
! 
!    <p>There are two default scheduling models for instructions.  These are
  PROCESSOR_7100LC and PROCESSOR_8000.  They are selected from the pa-risc
! architecture specified for the target machine when configuring. 
  PROCESSOR_8000 is the default.  PROCESSOR_7100LC is selected when
! the target is a &lsquo;<samp><span class="samp">hppa1*</span></samp>&rsquo; machine.
! 
!    <p>The PROCESSOR_8000 model is not well suited to older processors.  Thus,
  it is important to completely specify the machine architecture when
  configuring if you want a model other than PROCESSOR_8000.  The macro
  TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different
  default scheduling model is desired.
! 
!    <p>As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10
! through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later. 
  This namespace change might cause problems when bootstrapping with
  an earlier version of GCC or the HP compiler as essentially the same
  namespace is required for an entire build.  This problem can be avoided
! in a number of ways.  With HP cc, <samp><span class="env">UNIX_STD</span></samp> can be set to &lsquo;<samp><span class="samp">95</span></samp>&rsquo;
! or &lsquo;<samp><span class="samp">98</span></samp>&rsquo;.  Another way is to add an appropriate set of predefines
! to <samp><span class="env">CC</span></samp>.  The description for the <samp><span class="option">munix=</span></samp> option contains
  a list of the predefines used with each standard.
! 
!    <p>More specific information to &lsquo;<samp><span class="samp">hppa*-hp-hpux*</span></samp>&rsquo; targets follows.
! 
!    <p><hr /><a name="hppa_002dhp_002dhpux10"></a>
! 
! <h3 class="heading"><a name="TOC17"></a>hppa*-hp-hpux10</h3>
! 
  <p>For hpux10.20, we <em>highly</em> recommend you pick up the latest sed patch
  <code>PHCO_19798</code> from HP.
! 
!    <p>The C++ ABI has changed incompatibly in GCC 4.0.  COMDAT subspaces are
  used for one-only code and data.  This resolves many of the previous
  problems in using C++ on this target.  However, the ABI is not compatible
  with the one implemented under HP-UX 11 using secondary definitions.
! 
!    <p><hr /><a name="hppa_002dhp_002dhpux11"></a>
! 
! <h3 class="heading"><a name="TOC18"></a>hppa*-hp-hpux11</h3>
! 
  <p>GCC 3.0 and up support HP-UX 11.  GCC 2.95.x is not supported and cannot
  be used to compile GCC 3.0 and up.
! 
!    <p>The libffi and libjava libraries haven't been ported to 64-bit HP-UX and don't build.
! 
!    <p>Refer to <a href="binaries.html">binaries</a> for information about obtaining
  precompiled GCC binaries for HP-UX.  Precompiled binaries must be obtained
! to build the Ada language as it can't be bootstrapped using C.  Ada is
  only available for the 32-bit PA-RISC runtime.
! 
!    <p>Starting with GCC 3.4 an ISO C compiler is required to bootstrap.  The
! bundled compiler supports only traditional C; you will need either HP's
  unbundled compiler, or a binary distribution of GCC.
! 
!    <p>It is possible to build GCC 3.3 starting with the bundled HP compiler,
  but the process requires several steps.  GCC 3.3 can then be used to
  build later versions.  The fastjar program contains ISO C code and
! can't be built with the HP bundled compiler.  This problem can be
  avoided by not building the Java language.  For example, use the
! <samp><span class="option">--enable-languages="c,c++,f77,objc"</span></samp> option in your configure
  command.
! 
!    <p>There are several possible approaches to building the distribution. 
  Binutils can be built first using the HP tools.  Then, the GCC
  distribution can be built.  The second approach is to build GCC
! first using the HP tools, then build binutils, then rebuild GCC. 
  There have been problems with various binary distributions, so it
  is best not to start from a binary distribution.
! 
!    <p>On 64-bit capable systems, there are two distinct targets.  Different
  installation prefixes must be used if both are to be installed on
! the same system.  The &lsquo;<samp><span class="samp">hppa[1-2]*-hp-hpux11*</span></samp>&rsquo; target generates code
! for the 32-bit PA-RISC runtime architecture and uses the HP linker. 
! The &lsquo;<samp><span class="samp">hppa64-hp-hpux11*</span></samp>&rsquo; target generates 64-bit code for the
  PA-RISC 2.0 architecture.
! 
!    <p>The script config.guess now selects the target type based on the compiler
! detected during configuration.  You must define <samp><span class="env">PATH</span></samp> or <samp><span class="env">CC</span></samp> so
! that configure finds an appropriate compiler for the initial bootstrap. 
! When <samp><span class="env">CC</span></samp> is used, the definition should contain the options that are
! needed whenever <samp><span class="env">CC</span></samp> is used.
! 
!    <p>Specifically, options that determine the runtime architecture must be
! in <samp><span class="env">CC</span></samp> to correctly select the target for the build.  It is also
! convenient to place many other compiler options in <samp><span class="env">CC</span></samp>.  For example,
! <samp><span class="env">CC="cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE"</span></samp>
  can be used to bootstrap the GCC 3.3 branch with the HP compiler in
! 64-bit K&amp;R/bundled mode.  The <samp><span class="option">+DA2.0W</span></samp> option will result in
! the automatic selection of the &lsquo;<samp><span class="samp">hppa64-hp-hpux11*</span></samp>&rsquo; target.  The
  macro definition table of cpp needs to be increased for a successful
  build with the HP compiler.  _CLASSIC_TYPES and _HPUX_SOURCE need to
  be defined when building with the bundled compiler, or when using the
! <samp><span class="option">-Ac</span></samp> option.  These defines aren't necessary with <samp><span class="option">-Ae</span></samp>.
! 
!    <p>It is best to explicitly configure the &lsquo;<samp><span class="samp">hppa64-hp-hpux11*</span></samp>&rsquo; target
! with the <samp><span class="option">--with-ld=...</span></samp> option.  This overrides the standard
  search for ld.  The two linkers supported on this target require different
  commands.  The default linker is determined during configuration.  As a
! result, it's not possible to switch linkers in the middle of a GCC build. 
  This has been reported to sometimes occur in unified builds of binutils
  and GCC.
! 
!    <p>A recent linker patch must be installed for the correct operation of
  GCC 3.3 and later.  <code>PHSS_26559</code> and <code>PHSS_24304</code> are the
  oldest linker patches that are known to work.  They are for HP-UX
  11.00 and 11.11, respectively.  <code>PHSS_24303</code>, the companion to
! <code>PHSS_24304</code>, might be usable but it hasn't been tested.  These
  patches have been superseded.  Consult the HP patch database to obtain
  the currently recommended linker patch for your system.
! 
!    <p>The patches are necessary for the support of weak symbols on the
  32-bit port, and for the running of initializers and finalizers.  Weak
  symbols are implemented using SOM secondary definition symbols.  Prior
! to HP-UX 11, there are bugs in the linker support for secondary symbols. 
  The patches correct a problem of linker core dumps creating shared
  libraries containing secondary symbols, as well as various other
  linking issues involving secondary symbols.
! 
!    <p>GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to
  run initializers and finalizers on the 64-bit port.  The 32-bit port
! uses the linker <samp><span class="option">+init</span></samp> and <samp><span class="option">+fini</span></samp> options for the same
  purpose.  The patches correct various problems with the +init/+fini
  options, including program core dumps.  Binutils 2.14 corrects a
! problem on the 64-bit port resulting from HP's non-standard use of
  the .init and .fini sections for array initializers and finalizers.
! 
!    <p>Although the HP and GNU linkers are both supported for the
! &lsquo;<samp><span class="samp">hppa64-hp-hpux11*</span></samp>&rsquo; target, it is strongly recommended that the
  HP linker be used for link editing on this target.
! 
!    <p>At this time, the GNU linker does not support the creation of long
! branch stubs.  As a result, it can't successfully link binaries
  containing branch offsets larger than 8 megabytes.  In addition,
  there are problems linking shared libraries, linking executables
! with <samp><span class="option">-static</span></samp>, and with dwarf2 unwind and exception support. 
! It also doesn't provide stubs for internal calls to global functions
! in shared libraries, so these calls can't be overloaded.
! 
!    <p>The HP dynamic loader does not support GNU symbol versioning, so symbol
  versioning is not supported.  It may be necessary to disable symbol
! versioning with <samp><span class="option">--disable-symvers</span></samp> when using GNU ld.
! 
!    <p>POSIX threads are the default.  The optional DCE thread library is not
! supported, so <samp><span class="option">--enable-threads=dce</span></samp> does not work.
! 
!    <p><hr /><a name="x_002dx_002dlinux_002dgnu"></a>
! 
! <h3 class="heading"><a name="TOC19"></a>*-*-linux-gnu</h3>
! 
  <p>Versions of libstdc++-v3 starting with 3.2.1 require bug fixes present
  in glibc 2.2.5 and later.  More information is available in the
  libstdc++-v3 documentation.
! 
!    <p><hr /><a name="ix86_002dx_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC20"></a>i?86-*-linux*</h3>
! 
! <p>As of GCC 3.3, binutils 2.13.1 or later is required for this platform. 
  See <a href="http://gcc.gnu.org/PR10877">bug 10877</a> for more information.
! 
!    <p>If you receive Signal 11 errors when building on GNU/Linux, then it is
  possible you have a hardware problem.  Further information on this can be
  found on <a href="http://www.bitwizard.nl/sig11/">www.bitwizard.nl</a>.
! 
!    <p><hr /><a name="ix86_002dx_002dsolaris210"></a>
! 
! <h3 class="heading"><a name="TOC21"></a>i?86-*-solaris2.10</h3>
! 
  <p>Use this for Solaris 10 or later on x86 and x86-64 systems.  Starting
! with GCC 4.7, there is also a 64-bit &lsquo;<samp><span class="samp">amd64-*-solaris2.1[0-9]*</span></samp>&rsquo; or
! &lsquo;<samp><span class="samp">x86_64-*-solaris2.1[0-9]*</span></samp>&rsquo; configuration that corresponds to
! &lsquo;<samp><span class="samp">sparcv9-sun-solaris2*</span></samp>&rsquo;.
! 
!    <p>It is recommended that you configure GCC to use the GNU assembler.  The
  versions included in Solaris 10, from GNU binutils 2.15 (in
! <samp><span class="file">/usr/sfw/bin/gas</span></samp>), and Solaris 11, from GNU binutils 2.19 or
! newer (also available as <samp><span class="file">/usr/bin/gas</span></samp> and
! <samp><span class="file">/usr/gnu/bin/as</span></samp>), work fine.  Please note that the current
  version, from GNU binutils 2.26, only works on Solaris 12 when using the
  Solaris linker.  On Solaris 10 and 11, you either have to wait for GNU
  binutils 2.26.1 or newer, or stay with GNU binutils 2.25.1.  Recent
! versions of the Solaris assembler in <samp><span class="file">/usr/ccs/bin/as</span></samp> work almost
! as well, though. 
! <!-- FIXME: as patch requirements? -->
! 
!    <p>For linking, the Solaris linker, is preferred.  If you want to use the GNU
  linker instead, note that due to a packaging bug the version in Solaris
! 10, from GNU binutils 2.15 (in <samp><span class="file">/usr/sfw/bin/gld</span></samp>), cannot be used,
  while the version in Solaris 11, from GNU binutils 2.19 or newer (also
! in <samp><span class="file">/usr/gnu/bin/ld</span></samp> and <samp><span class="file">/usr/bin/gld</span></samp>), works, as does the
  latest version, from GNU binutils 2.26.
! 
!    <p>To use GNU <samp><span class="command">as</span></samp>, configure with the options
! <samp><span class="option">--with-gnu-as --with-as=/usr/sfw/bin/gas</span></samp>.  It may be necessary
! to configure with <samp><span class="option">--without-gnu-ld --with-ld=/usr/ccs/bin/ld</span></samp> to
! guarantee use of Sun <samp><span class="command">ld</span></samp>. 
! <!-- FIXME: why -without-gnu-ld -with-ld? -->
! 
!    <p><hr /><a name="ia64_002dx_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC22"></a>ia64-*-linux</h3>
! 
  <p>IA-64 processor (also known as IPF, or Itanium Processor Family)
  running GNU/Linux.
! 
!    <p>If you are using the installed system libunwind library with
! <samp><span class="option">--with-system-libunwind</span></samp>, then you must use libunwind 0.98 or
  later.
! 
!    <p>None of the following versions of GCC has an ABI that is compatible
  with any of the other versions in this list, with the exception that
  Red Hat 2.96 and Trillian 000171 are compatible with each other:
! 3.1, 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717. 
! This primarily affects C++ programs and programs that create shared libraries. 
! GCC 3.1 or later is recommended for compiling linux, the kernel. 
  As of version 3.1 GCC is believed to be fully ABI compliant, and hence no
  more major ABI changes are expected.
! 
!    <p><hr /><a name="ia64_002dx_002dhpux"></a>
! 
! <h3 class="heading"><a name="TOC23"></a>ia64-*-hpux*</h3>
! 
  <p>Building GCC on this target requires the GNU Assembler.  The bundled HP
  assembler will not work.  To prevent GCC from using the wrong assembler,
! the option <samp><span class="option">--with-gnu-as</span></samp> may be necessary.
! 
!    <p>The GCC libunwind library has not been ported to HPUX.  This means that for
! GCC versions 3.2.3 and earlier, <samp><span class="option">--enable-libunwind-exceptions</span></samp>
! is required to build GCC.  For GCC 3.3 and later, this is the default. 
! For gcc 3.4.3 and later, <samp><span class="option">--enable-libunwind-exceptions</span></samp> is
  removed and the system libunwind library will always be used.
! 
!    <p><hr />
! <!-- rs6000-ibm-aix*, powerpc-ibm-aix* --><a name="x_002dibm_002daix"></a>
! 
! <h3 class="heading"><a name="TOC24"></a>*-ibm-aix*</h3>
! 
! <p>Support for AIX version 3 and older was discontinued in GCC 3.4. 
  Support for AIX version 4.2 and older was discontinued in GCC 4.5.
! 
!    <p>&ldquo;out of memory&rdquo; bootstrap failures may indicate a problem with
  process resource limits (ulimit).  Hard limits are configured in the
! <samp><span class="file">/etc/security/limits</span></samp> system configuration file.
! 
!    <p>GCC 4.9 and above require a C++ compiler for bootstrap.  IBM VAC++ / xlC
  cannot bootstrap GCC.  xlc can bootstrap an older version of GCC and
  G++ can bootstrap recent releases of GCC.
! 
!    <p>GCC can bootstrap with recent versions of IBM XLC, but bootstrapping
  with an earlier release of GCC is recommended.  Bootstrapping with XLC
  requires a larger data segment, which can be enabled through the
  <var>LDR_CNTRL</var> environment variable, e.g.,
  
! <pre class="smallexample">     % LDR_CNTRL=MAXDATA=0x50000000
!      % export LDR_CNTRL
! </pre>
!    <p>One can start with a pre-compiled version of GCC to build from
! sources.  One may delete GCC's &ldquo;fixed&rdquo; header files when starting
  with a version of GCC built for an earlier release of AIX.
  
!    <p>To speed up the configuration phases of bootstrapping and installing GCC,
! one may use GNU Bash instead of AIX <samp><span class="command">/bin/sh</span></samp>, e.g.,
! 
! <pre class="smallexample">     % CONFIG_SHELL=/opt/freeware/bin/bash
!      % export CONFIG_SHELL
! </pre>
!    <p>and then proceed as described in <a href="build.html">the build instructions</a>, where we strongly recommend specifying an absolute path
  to invoke <var>srcdir</var>/configure.
! 
!    <p>Because GCC on AIX is built as a 32-bit executable by default,
  (although it can generate 64-bit programs) the GMP and MPFR libraries
  required by gfortran must be 32-bit libraries.  Building GMP and MPFR
  as static archive libraries works better than shared libraries.
! 
!    <p>Errors involving <code>alloca</code> when building GCC generally are due
  to an incorrect definition of <code>CC</code> in the Makefile or mixing files
  compiled with the native C compiler and GCC.  During the stage1 phase of
! the build, the native AIX compiler <strong>must</strong> be invoked as <samp><span class="command">cc</span></samp>
! (not <samp><span class="command">xlc</span></samp>).  Once <samp><span class="command">configure</span></samp> has been informed of
! <samp><span class="command">xlc</span></samp>, one needs to use &lsquo;<samp><span class="samp">make distclean</span></samp>&rsquo; to remove the
! configure cache files and ensure that <samp><span class="env">CC</span></samp> environment variable
! does not provide a definition that will confuse <samp><span class="command">configure</span></samp>. 
  If this error occurs during stage2 or later, then the problem most likely
  is the version of Make (see above).
! 
!    <p>The native <samp><span class="command">as</span></samp> and <samp><span class="command">ld</span></samp> are recommended for
  bootstrapping on AIX.  The GNU Assembler, GNU Linker, and GNU
  Binutils version 2.20 is the minimum level that supports bootstrap on
! AIX 5.  The GNU Assembler has not been updated to support AIX 6 or
  AIX 7.  The native AIX tools do interoperate with GCC.
! 
!    <p>AIX 7.1 added partial support for DWARF debugging, but full support
  requires AIX 7.1 TL03 SP7 that supports additional DWARF sections and
  fixes a bug in the assembler.  AIX 7.1 TL03 SP5 distributed a version
  of libm.a missing important symbols; a fix for IV77796 will be
  included in SP6.
! 
!    <p>AIX 5.3 TL10, AIX 6.1 TL05 and AIX 7.1 TL00 introduced an AIX
  assembler change that sometimes produces corrupt assembly files
  causing AIX linker errors.  The bug breaks GCC bootstrap on AIX and
  can cause compilation failures with existing GCC installations.  An
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! <title>Installing GCC</title>
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  </head>
  
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
  
  
  
  
  
  
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Specific"></a>
! <a name="index-Specific-installation-notes"></a>
! <a name="index-Target-specific-installation"></a>
! <a name="index-Host-specific-installation"></a>
! <a name="index-Target-specific-installation-notes"></a>
! 
! <p>Please read this document carefully <em>before</em> installing the
! GNU Compiler Collection on your machine.
! </p>
! <p>Note that this list of install notes is <em>not</em> a list of supported
! hosts or targets.  Not all supported hosts and targets are listed
! here, only the ones that require host-specific or target-specific
! information have to. 
! </p>
! <ul>
! <li> <a href="#aarch64-x-x">aarch64*-*-*</a>
! </li><li> <a href="#alpha-x-x">alpha*-*-*</a>
! </li><li> <a href="#alpha-dec-osf51">alpha*-dec-osf5.1</a>
! </li><li> <a href="#amd64-x-solaris210">amd64-*-solaris2.10</a>
! </li><li> <a href="#arm-x-eabi">arm-*-eabi</a>
! </li><li> <a href="#avr">avr</a>
! </li><li> <a href="#bfin">Blackfin</a>
! </li><li> <a href="#dos">DOS</a>
! </li><li> <a href="#x-x-freebsd">*-*-freebsd*</a>
! </li><li> <a href="#h8300-hms">h8300-hms</a>
! </li><li> <a href="#hppa-hp-hpux">hppa*-hp-hpux*</a>
! </li><li> <a href="#hppa-hp-hpux10">hppa*-hp-hpux10</a>
! </li><li> <a href="#hppa-hp-hpux11">hppa*-hp-hpux11</a>
! </li><li> <a href="#x-x-linux-gnu">*-*-linux-gnu</a>
! </li><li> <a href="#ix86-x-linux">i?86-*-linux*</a>
! </li><li> <a href="#ix86-x-solaris210">i?86-*-solaris2.10</a>
! </li><li> <a href="#ia64-x-linux">ia64-*-linux</a>
! </li><li> <a href="#ia64-x-hpux">ia64-*-hpux*</a>
! </li><li> <a href="#x-ibm-aix">*-ibm-aix*</a>
! </li><li> <a href="#iq2000-x-elf">iq2000-*-elf</a>
! </li><li> <a href="#lm32-x-elf">lm32-*-elf</a>
! </li><li> <a href="#lm32-x-uclinux">lm32-*-uclinux</a>
! </li><li> <a href="#m32c-x-elf">m32c-*-elf</a>
! </li><li> <a href="#m32r-x-elf">m32r-*-elf</a>
! </li><li> <a href="#m68k-x-x">m68k-*-*</a>
! </li><li> <a href="#m68k-uclinux">m68k-uclinux</a>
! </li><li> <a href="#mep-x-elf">mep-*-elf</a>
! </li><li> <a href="#microblaze-x-elf">microblaze-*-elf</a>
! </li><li> <a href="#mips-x-x">mips-*-*</a>
! </li><li> <a href="#mips-sgi-irix5">mips-sgi-irix5</a>
! </li><li> <a href="#mips-sgi-irix6">mips-sgi-irix6</a>
! </li><li> <a href="#nds32le-x-elf">nds32le-*-elf</a>
! </li><li> <a href="#nds32be-x-elf">nds32be-*-elf</a>
! </li><li> <a href="#nvptx-x-none">nvptx-*-none</a>
! </li><li> <a href="#powerpc-x-x">powerpc*-*-*</a>
! </li><li> <a href="#powerpc-x-darwin">powerpc-*-darwin*</a>
! </li><li> <a href="#powerpc-x-elf">powerpc-*-elf</a>
! </li><li> <a href="#powerpc-x-linux-gnu">powerpc*-*-linux-gnu*</a>
! </li><li> <a href="#powerpc-x-netbsd">powerpc-*-netbsd*</a>
! </li><li> <a href="#powerpc-x-eabisim">powerpc-*-eabisim</a>
! </li><li> <a href="#powerpc-x-eabi">powerpc-*-eabi</a>
! </li><li> <a href="#powerpcle-x-elf">powerpcle-*-elf</a>
! </li><li> <a href="#powerpcle-x-eabisim">powerpcle-*-eabisim</a>
! </li><li> <a href="#powerpcle-x-eabi">powerpcle-*-eabi</a>
! </li><li> <a href="#s390-x-linux">s390-*-linux*</a>
! </li><li> <a href="#s390x-x-linux">s390x-*-linux*</a>
! </li><li> <a href="#s390x-ibm-tpf">s390x-ibm-tpf*</a>
! </li><li> <a href="#x-x-solaris2">*-*-solaris2*</a>
! </li><li> <a href="#sparc-x-x">sparc*-*-*</a>
! </li><li> <a href="#sparc-sun-solaris2">sparc-sun-solaris2*</a>
! </li><li> <a href="#sparc-sun-solaris210">sparc-sun-solaris2.10</a>
! </li><li> <a href="#sparc-x-linux">sparc-*-linux*</a>
! </li><li> <a href="#sparc64-x-solaris2">sparc64-*-solaris2*</a>
! </li><li> <a href="#sparcv9-x-solaris2">sparcv9-*-solaris2*</a>
! </li><li> <a href="#c6x-x-x">c6x-*-*</a>
! </li><li> <a href="#tilegx-x-linux">tilegx-*-linux*</a>
! </li><li> <a href="#tilegxbe-x-linux">tilegxbe-*-linux*</a>
! </li><li> <a href="#tilepro-x-linux">tilepro-*-linux*</a>
! </li><li> <a href="#visium-x-elf">visium-*-elf</a>
! </li><li> <a href="#x-x-vxworks">*-*-vxworks*</a>
! </li><li> <a href="#x86-64-x-x">x86_64-*-*, amd64-*-*</a>
! </li><li> <a href="#x86-64-x-solaris210">x86_64-*-solaris2.1[0-9]*</a>
! </li><li> <a href="#xtensa-x-elf">xtensa*-*-elf</a>
! </li><li> <a href="#xtensa-x-linux">xtensa*-*-linux*</a>
! </li><li> <a href="#windows">Microsoft Windows</a>
! </li><li> <a href="#x-x-cygwin">*-*-cygwin</a>
! </li><li> <a href="#x-x-interix">*-*-interix</a>
! </li><li> <a href="#x-x-mingw32">*-*-mingw32</a>
! </li><li> <a href="#os2">OS/2</a>
! </li><li> <a href="#older">Older systems</a>
! </li></ul>
! 
! <ul>
! <li> <a href="#elf">all ELF targets</a> (SVR4, Solaris 2, etc.)
! </li></ul>
! 
! 
! <!-- -------- host/target specific issues start here ---------------- -->
! <hr />
! <a name="aarch64_002dx_002dx"></a><a name="aarch64_002a_002d_002a_002d_002a"></a>
! <h3 class="heading">aarch64*-*-*</h3>
! <p>Binutils pre 2.24 does not have support for selecting <samp>-mabi</samp> and
! does not support ILP32.  If it is used to build GCC 4.9 or later, GCC will
! not support option <samp>-mabi=ilp32</samp>.
! </p>
! <p>To enable a workaround for the Cortex-A53 erratum number 835769 by default
  (for all CPUs regardless of -mcpu option given) at configure time use the
! <samp>--enable-fix-cortex-a53-835769</samp> option.  This will enable the fix by
  default and can be explicitly disabled during compilation by passing the
! <samp>-mno-fix-cortex-a53-835769</samp> option.  Conversely,
! <samp>--disable-fix-cortex-a53-835769</samp> will disable the workaround by
  default.  The workaround is disabled by default if neither of
! <samp>--enable-fix-cortex-a53-835769</samp> or
! <samp>--disable-fix-cortex-a53-835769</samp> is given at configure time.
! </p>
! <p>To enable a workaround for the Cortex-A53 erratum number 843419 by default
  (for all CPUs regardless of -mcpu option given) at configure time use the
! <samp>--enable-fix-cortex-a53-843419</samp> option.  This workaround is applied at
  link time.  Enabling the workaround will cause GCC to pass the relevant option
  to the linker.  It can be explicitly disabled during compilation by passing the
! <samp>-mno-fix-cortex-a53-843419</samp> option.  Conversely,
! <samp>--disable-fix-cortex-a53-843419</samp> will disable the workaround by default.
  The workaround is disabled by default if neither of
! <samp>--enable-fix-cortex-a53-843419</samp> or
! <samp>--disable-fix-cortex-a53-843419</samp> is given at configure time.
! </p>
! <hr />
! <a name="alpha_002dx_002dx"></a><a name="alpha_002a_002d_002a_002d_002a"></a>
! <h3 class="heading">alpha*-*-*</h3>
  <p>This section contains general configuration information for all
  alpha-based platforms using ELF (in particular, ignore this section for
  DEC OSF/1, Digital UNIX and Tru64 UNIX).  In addition to reading this
  section, please read all other sections that match your target.
! </p>
! <p>We require binutils 2.11.2 or newer.
  Previous binutils releases had a number of problems with DWARF 2
  debugging information, not the least of which is incorrect linking of
  shared libraries.
! </p>
! <hr />
! <a name="alpha_002ddec_002dosf51"></a><a name="alpha_002a_002ddec_002dosf5_002e1"></a>
! <h3 class="heading">alpha*-dec-osf5.1</h3>
  <p>Systems using processors that implement the DEC Alpha architecture and
  are running the DEC/Compaq/HP Unix (DEC OSF/1, Digital UNIX, or Compaq/HP
  Tru64 UNIX) operating system, for example the DEC Alpha AXP systems.
! </p>
! <p>Support for Tru64 UNIX V5.1 has been removed in GCC 4.8.  As of GCC 4.6,
  support for Tru64 UNIX V4.0 and V5.0 has been removed.  As of GCC 3.2,
  versions before <code>alpha*-dec-osf4</code> are no longer supported.  (These
  are the versions which identify themselves as DEC OSF/1.)
+ </p>
+ <hr />
+ <a name="amd64_002dx_002dsolaris210"></a><a name="amd64_002d_002a_002dsolaris2_002e1_005b0_002d9_005d_002a"></a>
+ <h3 class="heading">amd64-*-solaris2.1[0-9]*</h3>
+ <p>This is a synonym for &lsquo;<samp>x86_64-*-solaris2.1[0-9]*</samp>&rsquo;.
+ </p>
+ <hr />
+ <a name="arc_002dx_002delf32"></a><a name="arc_002d_002a_002delf32"></a>
+ <h3 class="heading">arc-*-elf32</h3>
  
! <p>Use &lsquo;<samp>configure --target=arc-elf32 --with-cpu=<var>cpu</var> --enable-languages=&quot;c,c++&quot;</samp>&rsquo;
! to configure GCC, with <var>cpu</var> being one of &lsquo;<samp>arc600</samp>&rsquo;, &lsquo;<samp>arc601</samp>&rsquo;,
! or &lsquo;<samp>arc700</samp>&rsquo;.
! </p>
! <hr />
! <a name="arc_002dlinux_002duclibc"></a><a name="arc_002dlinux_002duclibc-1"></a>
! <h3 class="heading">arc-linux-uclibc</h3>
  
+ <p>Use &lsquo;<samp>configure --target=arc-linux-uclibc --with-cpu=arc700 --enable-languages=&quot;c,c++&quot;</samp>&rsquo; to configure GCC.
+ </p>
+ <hr />
+ <a name="arm_002dx_002deabi"></a><a name="arm_002d_002a_002deabi"></a>
+ <h3 class="heading">arm-*-eabi</h3>
  <p>ARM-family processors.  Subtargets that use the ELF object format
  require GNU binutils 2.13 or newer.  Such subtargets include:
  <code>arm-*-netbsdelf</code>, <code>arm-*-*linux-*</code>
  and <code>arm-*-rtemseabi</code>.
! </p>
! <p>Building the Ada frontend commonly fails (an infinite loop executing
  <code>xsinfo</code>) if the host compiler is GNAT 4.8.  Host compilers built from the
  GNAT 4.6, 4.9 or 5 release branches are known to succeed.
! </p>
! <hr />
! <a name="avr"></a><a name="avr-1"></a>
! <h3 class="heading">avr</h3>
  <p>ATMEL AVR-family micro controllers.  These are used in embedded
! applications.  There are no standard Unix configurations.
  See &ldquo;AVR Options&rdquo; in the main manual
  for the list of supported MCU types.
! </p>
! <p>Use &lsquo;<samp>configure --target=avr --enable-languages=&quot;c&quot;</samp>&rsquo; to configure GCC.
! </p>
! <p>Further installation notes and other useful information about AVR tools
  can also be obtained from:
+ </p>
+ <ul>
+ <li> <a href="http://www.nongnu.org/avr/">http://www.nongnu.org/avr/</a>
+ </li><li> <a href="http://www.amelek.gda.pl/avr/">http://www.amelek.gda.pl/avr/</a>
+ </li></ul>
  
! <p>We <em>strongly</em> recommend using binutils 2.13 or newer.
! </p>
! <p>The following error:
! </p><div class="smallexample">
! <pre class="smallexample">Error: register required
! </pre></div>
  
! <p>indicates that you should upgrade to a newer version of the binutils.
! </p>
! <hr />
! <a name="bfin"></a><a name="Blackfin"></a>
! <h3 class="heading">Blackfin</h3>
! <p>The Blackfin processor, an Analog Devices DSP.
  See &ldquo;Blackfin Options&rdquo; in the main manual
! </p>
! <p>More information, and a version of binutils with support for this processor,
  is available at <a href="http://blackfin.uclinux.org">http://blackfin.uclinux.org</a>
! </p>
! <hr />
! <a name="cr16"></a><a name="CR16"></a>
! <h3 class="heading">CR16</h3>
  <p>The CR16 CompactRISC architecture is a 16-bit architecture. This
  architecture is used in embedded applications.
+ </p>
  
! <p>See &ldquo;CR16 Options&rdquo; in the main manual for a list of CR16-specific options.
! </p>
! <p>Use &lsquo;<samp>configure --target=cr16-elf --enable-languages=c,c++</samp>&rsquo; to configure
! GCC&nbsp;for building a CR16 elf cross-compiler.
! </p>
! <p>Use &lsquo;<samp>configure --target=cr16-uclinux --enable-languages=c,c++</samp>&rsquo; to
! configure GCC&nbsp;for building a CR16 uclinux cross-compiler.
! </p>
! <hr />
! <a name="cris"></a><a name="CRIS"></a>
! <h3 class="heading">CRIS</h3>
  <p>CRIS is the CPU architecture in Axis Communications ETRAX system-on-a-chip
  series.  These are used in embedded applications.
! </p>
! <p>See &ldquo;CRIS Options&rdquo; in the main manual
  for a list of CRIS-specific options.
! </p>
! <p>There are a few different CRIS targets:
! </p><dl compact="compact">
! <dt><code>cris-axis-elf</code></dt>
! <dd><p>Mainly for monolithic embedded systems.  Includes a multilib for the
! &lsquo;<samp>v10</samp>&rsquo; core used in &lsquo;<samp>ETRAX 100 LX</samp>&rsquo;.
! </p></dd>
! <dt><code>cris-axis-linux-gnu</code></dt>
! <dd><p>A GNU/Linux port for the CRIS architecture, currently targeting
! &lsquo;<samp>ETRAX 100 LX</samp>&rsquo; by default.
! </p></dd>
  </dl>
  
! <p>For <code>cris-axis-elf</code> you need binutils 2.11
  or newer.  For <code>cris-axis-linux-gnu</code> you need binutils 2.12 or newer.
! </p>
! <p>Pre-packaged tools can be obtained from
  <a href="ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/">ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/</a>.  More
  information about this platform is available at
  <a href="http://developer.axis.com/">http://developer.axis.com/</a>.
! </p>
! <hr />
! <a name="dos"></a><a name="DOS"></a>
! <h3 class="heading">DOS</h3>
  <p>Please have a look at the <a href="binaries.html">binaries page</a>.
! </p>
! <p>You cannot install GCC by itself on MSDOS; it will not compile under
  any MSDOS compiler except itself.  You need to get the complete
  compilation package DJGPP, which includes binaries as well as sources,
  and includes all the necessary compilation tools and libraries.
! </p>
! <hr />
! <a name="epiphany_002dx_002delf"></a><a name="epiphany_002d_002a_002delf"></a>
! <h3 class="heading">epiphany-*-elf</h3>
! <p>Adapteva Epiphany.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="x_002dx_002dfreebsd"></a><a name="g_t_002a_002d_002a_002dfreebsd_002a"></a>
! <h3 class="heading">*-*-freebsd*</h3>
  <p>Support for FreeBSD 1 was discontinued in GCC 3.2.  Support for
  FreeBSD 2 (and any mutant a.out variants of FreeBSD 3) was
  discontinued in GCC 4.0.
! </p>
! <p>In order to better utilize FreeBSD base system functionality and match
  the configuration of the system compiler, GCC 4.5 and above as well as
  GCC 4.4 past 2010-06-20 leverage SSP support in libc (which is present
  on FreeBSD 7 or later) and the use of <code>__cxa_atexit</code> by default
  (on FreeBSD 6 or later).  The use of <code>dl_iterate_phdr</code> inside
! <samp>libgcc_s.so.1</samp> and boehm-gc (on FreeBSD 7 or later) is enabled
  by GCC 4.5 and above.
! </p>
! <p>We support FreeBSD using the ELF file format with DWARF 2 debugging
! for all CPU architectures.  You may use <samp>-gstabs</samp> instead of
! <samp>-g</samp>, if you really want the old debugging format.  There are
  no known issues with mixing object files and libraries with different
  debugging formats.  Otherwise, this release of GCC should now match
  more of the configuration used in the stock FreeBSD configuration of
! GCC.  In particular, <samp>--enable-threads</samp> is now configured by
  default.  However, as a general user, do not attempt to replace the
  system compiler with this release.  Known to bootstrap and check with
  good results on FreeBSD 7.2-STABLE.  In the past, known to bootstrap
  and check with good results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4,
  4.5, 4.8, 4.9 and 5-CURRENT.
! </p>
! <p>The version of binutils installed in <samp>/usr/bin</samp> probably works
  with this release of GCC.  Bootstrapping against the latest GNU
! binutils and/or the version found in <samp>/usr/ports/devel/binutils</samp> has
  been known to enable additional features and improve overall testsuite
  results.  However, it is currently known that boehm-gc (which itself
  is required for java) may not configure properly on FreeBSD prior to
  the FreeBSD 7.0 release with GNU binutils after 2.16.1.
! </p>
! <hr />
! <a name="ft32_002dx_002delf"></a><a name="ft32_002d_002a_002delf"></a>
! <h3 class="heading">ft32-*-elf</h3>
! <p>The FT32 processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="h8300_002dhms"></a><a name="h8300_002dhms-1"></a>
! <h3 class="heading">h8300-hms</h3>
  <p>Renesas H8/300 series of processors.
! </p>
! <p>Please have a look at the <a href="binaries.html">binaries page</a>.
! </p>
! <p>The calling convention and structure layout has changed in release 2.6.
  All code must be recompiled.  The calling convention now passes the
  first three arguments in function calls in registers.  Structures are no
  longer a multiple of 2 bytes.
! </p>
! <hr />
! <a name="hppa_002dhp_002dhpux"></a><a name="hppa_002a_002dhp_002dhpux_002a"></a>
! <h3 class="heading">hppa*-hp-hpux*</h3>
  <p>Support for HP-UX version 9 and older was discontinued in GCC 3.4.
! </p>
! <p>We require using gas/binutils on all hppa platforms.  Version 2.19 or
  later is recommended.
! </p>
! <p>It may be helpful to configure GCC with the
! <a href="./configure.html#with-gnu-as"><samp>--with-gnu-as</samp></a> and
! <samp>--with-as=&hellip;</samp> options to ensure that GCC can find GAS.
! </p>
! <p>The HP assembler should not be used with GCC.  It is rarely tested and may
! not work.  It shouldn&rsquo;t be used with any languages other than C due to its
  many limitations.
! </p>
! <p>Specifically, <samp>-g</samp> does not work (HP-UX uses a peculiar debugging
  format which GCC does not know about).  It also inserts timestamps
  into each object file it creates, causing the 3-stage comparison test to
  fail during a bootstrap.  You should be able to continue by saying
! &lsquo;<samp>make all-host all-target</samp>&rsquo; after getting the failure from &lsquo;<samp>make</samp>&rsquo;.
! </p>
! <p>Various GCC features are not supported.  For example, it does not support weak
  symbols or alias definitions.  As a result, explicit template instantiations
  are required when using C++.  This makes it difficult if not impossible to
  build many C++ applications.
! </p>
! <p>There are two default scheduling models for instructions.  These are
  PROCESSOR_7100LC and PROCESSOR_8000.  They are selected from the pa-risc
! architecture specified for the target machine when configuring.
  PROCESSOR_8000 is the default.  PROCESSOR_7100LC is selected when
! the target is a &lsquo;<samp>hppa1*</samp>&rsquo; machine.
! </p>
! <p>The PROCESSOR_8000 model is not well suited to older processors.  Thus,
  it is important to completely specify the machine architecture when
  configuring if you want a model other than PROCESSOR_8000.  The macro
  TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different
  default scheduling model is desired.
! </p>
! <p>As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10
! through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later.
  This namespace change might cause problems when bootstrapping with
  an earlier version of GCC or the HP compiler as essentially the same
  namespace is required for an entire build.  This problem can be avoided
! in a number of ways.  With HP cc, <code>UNIX_STD</code> can be set to &lsquo;<samp>95</samp>&rsquo;
! or &lsquo;<samp>98</samp>&rsquo;.  Another way is to add an appropriate set of predefines
! to <code>CC</code>.  The description for the <samp>munix=</samp> option contains
  a list of the predefines used with each standard.
! </p>
! <p>More specific information to &lsquo;<samp>hppa*-hp-hpux*</samp>&rsquo; targets follows.
! </p>
! <hr />
! <a name="hppa_002dhp_002dhpux10"></a><a name="hppa_002a_002dhp_002dhpux10"></a>
! <h3 class="heading">hppa*-hp-hpux10</h3>
  <p>For hpux10.20, we <em>highly</em> recommend you pick up the latest sed patch
  <code>PHCO_19798</code> from HP.
! </p>
! <p>The C++ ABI has changed incompatibly in GCC 4.0.  COMDAT subspaces are
  used for one-only code and data.  This resolves many of the previous
  problems in using C++ on this target.  However, the ABI is not compatible
  with the one implemented under HP-UX 11 using secondary definitions.
! </p>
! <hr />
! <a name="hppa_002dhp_002dhpux11"></a><a name="hppa_002a_002dhp_002dhpux11"></a>
! <h3 class="heading">hppa*-hp-hpux11</h3>
  <p>GCC 3.0 and up support HP-UX 11.  GCC 2.95.x is not supported and cannot
  be used to compile GCC 3.0 and up.
! </p>
! <p>The libffi and libjava libraries haven&rsquo;t been ported to 64-bit HP-UX&nbsp;and don&rsquo;t build.
! </p>
! <p>Refer to <a href="binaries.html">binaries</a> for information about obtaining
  precompiled GCC binaries for HP-UX.  Precompiled binaries must be obtained
! to build the Ada language as it can&rsquo;t be bootstrapped using C.  Ada is
  only available for the 32-bit PA-RISC runtime.
! </p>
! <p>Starting with GCC 3.4 an ISO C compiler is required to bootstrap.  The
! bundled compiler supports only traditional C; you will need either HP&rsquo;s
  unbundled compiler, or a binary distribution of GCC.
! </p>
! <p>It is possible to build GCC 3.3 starting with the bundled HP compiler,
  but the process requires several steps.  GCC 3.3 can then be used to
  build later versions.  The fastjar program contains ISO C code and
! can&rsquo;t be built with the HP bundled compiler.  This problem can be
  avoided by not building the Java language.  For example, use the
! <samp>--enable-languages=&quot;c,c++,f77,objc&quot;</samp> option in your configure
  command.
! </p>
! <p>There are several possible approaches to building the distribution.
  Binutils can be built first using the HP tools.  Then, the GCC
  distribution can be built.  The second approach is to build GCC
! first using the HP tools, then build binutils, then rebuild GCC.
  There have been problems with various binary distributions, so it
  is best not to start from a binary distribution.
! </p>
! <p>On 64-bit capable systems, there are two distinct targets.  Different
  installation prefixes must be used if both are to be installed on
! the same system.  The &lsquo;<samp>hppa[1-2]*-hp-hpux11*</samp>&rsquo; target generates code
! for the 32-bit PA-RISC runtime architecture and uses the HP linker.
! The &lsquo;<samp>hppa64-hp-hpux11*</samp>&rsquo; target generates 64-bit code for the
  PA-RISC 2.0 architecture.
! </p>
! <p>The script config.guess now selects the target type based on the compiler
! detected during configuration.  You must define <code>PATH</code> or <code>CC</code> so
! that configure finds an appropriate compiler for the initial bootstrap.
! When <code>CC</code> is used, the definition should contain the options that are
! needed whenever <code>CC</code> is used.
! </p>
! <p>Specifically, options that determine the runtime architecture must be
! in <code>CC</code> to correctly select the target for the build.  It is also
! convenient to place many other compiler options in <code>CC</code>.  For example,
! <code>CC=&quot;cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE&quot;</code>
  can be used to bootstrap the GCC 3.3 branch with the HP compiler in
! 64-bit K&amp;R/bundled mode.  The <samp>+DA2.0W</samp> option will result in
! the automatic selection of the &lsquo;<samp>hppa64-hp-hpux11*</samp>&rsquo; target.  The
  macro definition table of cpp needs to be increased for a successful
  build with the HP compiler.  _CLASSIC_TYPES and _HPUX_SOURCE need to
  be defined when building with the bundled compiler, or when using the
! <samp>-Ac</samp> option.  These defines aren&rsquo;t necessary with <samp>-Ae</samp>.
! </p>
! <p>It is best to explicitly configure the &lsquo;<samp>hppa64-hp-hpux11*</samp>&rsquo; target
! with the <samp>--with-ld=&hellip;</samp> option.  This overrides the standard
  search for ld.  The two linkers supported on this target require different
  commands.  The default linker is determined during configuration.  As a
! result, it&rsquo;s not possible to switch linkers in the middle of a GCC build.
  This has been reported to sometimes occur in unified builds of binutils
  and GCC.
! </p>
! <p>A recent linker patch must be installed for the correct operation of
  GCC 3.3 and later.  <code>PHSS_26559</code> and <code>PHSS_24304</code> are the
  oldest linker patches that are known to work.  They are for HP-UX
  11.00 and 11.11, respectively.  <code>PHSS_24303</code>, the companion to
! <code>PHSS_24304</code>, might be usable but it hasn&rsquo;t been tested.  These
  patches have been superseded.  Consult the HP patch database to obtain
  the currently recommended linker patch for your system.
! </p>
! <p>The patches are necessary for the support of weak symbols on the
  32-bit port, and for the running of initializers and finalizers.  Weak
  symbols are implemented using SOM secondary definition symbols.  Prior
! to HP-UX 11, there are bugs in the linker support for secondary symbols.
  The patches correct a problem of linker core dumps creating shared
  libraries containing secondary symbols, as well as various other
  linking issues involving secondary symbols.
! </p>
! <p>GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to
  run initializers and finalizers on the 64-bit port.  The 32-bit port
! uses the linker <samp>+init</samp> and <samp>+fini</samp> options for the same
  purpose.  The patches correct various problems with the +init/+fini
  options, including program core dumps.  Binutils 2.14 corrects a
! problem on the 64-bit port resulting from HP&rsquo;s non-standard use of
  the .init and .fini sections for array initializers and finalizers.
! </p>
! <p>Although the HP and GNU linkers are both supported for the
! &lsquo;<samp>hppa64-hp-hpux11*</samp>&rsquo; target, it is strongly recommended that the
  HP linker be used for link editing on this target.
! </p>
! <p>At this time, the GNU linker does not support the creation of long
! branch stubs.  As a result, it can&rsquo;t successfully link binaries
  containing branch offsets larger than 8 megabytes.  In addition,
  there are problems linking shared libraries, linking executables
! with <samp>-static</samp>, and with dwarf2 unwind and exception support.
! It also doesn&rsquo;t provide stubs for internal calls to global functions
! in shared libraries, so these calls can&rsquo;t be overloaded.
! </p>
! <p>The HP dynamic loader does not support GNU symbol versioning, so symbol
  versioning is not supported.  It may be necessary to disable symbol
! versioning with <samp>--disable-symvers</samp> when using GNU ld.
! </p>
! <p>POSIX threads are the default.  The optional DCE thread library is not
! supported, so <samp>--enable-threads=dce</samp> does not work.
! </p>
! <hr />
! <a name="x_002dx_002dlinux_002dgnu"></a><a name="g_t_002a_002d_002a_002dlinux_002dgnu"></a>
! <h3 class="heading">*-*-linux-gnu</h3>
  <p>Versions of libstdc++-v3 starting with 3.2.1 require bug fixes present
  in glibc 2.2.5 and later.  More information is available in the
  libstdc++-v3 documentation.
! </p>
! <hr />
! <a name="ix86_002dx_002dlinux"></a><a name="i_003f86_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">i?86-*-linux*</h3>
! <p>As of GCC 3.3, binutils 2.13.1 or later is required for this platform.
  See <a href="http://gcc.gnu.org/PR10877">bug 10877</a> for more information.
! </p>
! <p>If you receive Signal 11 errors when building on GNU/Linux, then it is
  possible you have a hardware problem.  Further information on this can be
  found on <a href="http://www.bitwizard.nl/sig11/">www.bitwizard.nl</a>.
! </p>
! <hr />
! <a name="ix86_002dx_002dsolaris210"></a><a name="i_003f86_002d_002a_002dsolaris2_002e10"></a>
! <h3 class="heading">i?86-*-solaris2.10</h3>
  <p>Use this for Solaris 10 or later on x86 and x86-64 systems.  Starting
! with GCC 4.7, there is also a 64-bit &lsquo;<samp>amd64-*-solaris2.1[0-9]*</samp>&rsquo; or
! &lsquo;<samp>x86_64-*-solaris2.1[0-9]*</samp>&rsquo; configuration that corresponds to
! &lsquo;<samp>sparcv9-sun-solaris2*</samp>&rsquo;.
! </p>
! <p>It is recommended that you configure GCC to use the GNU assembler.  The
  versions included in Solaris 10, from GNU binutils 2.15 (in
! <samp>/usr/sfw/bin/gas</samp>), and Solaris 11, from GNU binutils 2.19 or
! newer (also available as <samp>/usr/bin/gas</samp> and
! <samp>/usr/gnu/bin/as</samp>), work fine.  Please note that the current
  version, from GNU binutils 2.26, only works on Solaris 12 when using the
  Solaris linker.  On Solaris 10 and 11, you either have to wait for GNU
  binutils 2.26.1 or newer, or stay with GNU binutils 2.25.1.  Recent
! versions of the Solaris assembler in <samp>/usr/ccs/bin/as</samp> work almost
! as well, though.
! </p>
! <p>For linking, the Solaris linker, is preferred.  If you want to use the GNU
  linker instead, note that due to a packaging bug the version in Solaris
! 10, from GNU binutils 2.15 (in <samp>/usr/sfw/bin/gld</samp>), cannot be used,
  while the version in Solaris 11, from GNU binutils 2.19 or newer (also
! in <samp>/usr/gnu/bin/ld</samp> and <samp>/usr/bin/gld</samp>), works, as does the
  latest version, from GNU binutils 2.26.
! </p>
! <p>To use GNU <code>as</code>, configure with the options
! <samp>--with-gnu-as --with-as=/usr/sfw/bin/gas</samp>.  It may be necessary
! to configure with <samp>--without-gnu-ld --with-ld=/usr/ccs/bin/ld</samp> to
! guarantee use of Sun <code>ld</code>.
! </p>
! <hr />
! <a name="ia64_002dx_002dlinux"></a><a name="ia64_002d_002a_002dlinux"></a>
! <h3 class="heading">ia64-*-linux</h3>
  <p>IA-64 processor (also known as IPF, or Itanium Processor Family)
  running GNU/Linux.
! </p>
! <p>If you are using the installed system libunwind library with
! <samp>--with-system-libunwind</samp>, then you must use libunwind 0.98 or
  later.
! </p>
! <p>None of the following versions of GCC has an ABI that is compatible
  with any of the other versions in this list, with the exception that
  Red Hat 2.96 and Trillian 000171 are compatible with each other:
! 3.1, 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717.
! This primarily affects C++ programs and programs that create shared libraries.
! GCC 3.1 or later is recommended for compiling linux, the kernel.
  As of version 3.1 GCC is believed to be fully ABI compliant, and hence no
  more major ABI changes are expected.
! </p>
! <hr />
! <a name="ia64_002dx_002dhpux"></a><a name="ia64_002d_002a_002dhpux_002a"></a>
! <h3 class="heading">ia64-*-hpux*</h3>
  <p>Building GCC on this target requires the GNU Assembler.  The bundled HP
  assembler will not work.  To prevent GCC from using the wrong assembler,
! the option <samp>--with-gnu-as</samp> may be necessary.
! </p>
! <p>The GCC libunwind library has not been ported to HPUX.  This means that for
! GCC versions 3.2.3 and earlier, <samp>--enable-libunwind-exceptions</samp>
! is required to build GCC.  For GCC 3.3 and later, this is the default.
! For gcc 3.4.3 and later, <samp>--enable-libunwind-exceptions</samp> is
  removed and the system libunwind library will always be used.
! </p>
! <hr />
! <!-- rs6000-ibm-aix*, powerpc-ibm-aix* -->
! <a name="x_002dibm_002daix"></a><a name="g_t_002a_002dibm_002daix_002a"></a>
! <h3 class="heading">*-ibm-aix*</h3>
! <p>Support for AIX version 3 and older was discontinued in GCC 3.4.
  Support for AIX version 4.2 and older was discontinued in GCC 4.5.
! </p>
! <p>&ldquo;out of memory&rdquo; bootstrap failures may indicate a problem with
  process resource limits (ulimit).  Hard limits are configured in the
! <samp>/etc/security/limits</samp> system configuration file.
! </p>
! <p>GCC 4.9 and above require a C++ compiler for bootstrap.  IBM VAC++ / xlC
  cannot bootstrap GCC.  xlc can bootstrap an older version of GCC and
  G++ can bootstrap recent releases of GCC.
! </p>
! <p>GCC can bootstrap with recent versions of IBM XLC, but bootstrapping
  with an earlier release of GCC is recommended.  Bootstrapping with XLC
  requires a larger data segment, which can be enabled through the
  <var>LDR_CNTRL</var> environment variable, e.g.,
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">% LDR_CNTRL=MAXDATA=0x50000000
+ % export LDR_CNTRL
+ </pre></div>
  
! <p>One can start with a pre-compiled version of GCC to build from
! sources.  One may delete GCC&rsquo;s &ldquo;fixed&rdquo; header files when starting
  with a version of GCC built for an earlier release of AIX.
+ </p>
+ <p>To speed up the configuration phases of bootstrapping and installing GCC,
+ one may use GNU Bash instead of AIX <code>/bin/sh</code>, e.g.,
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">% CONFIG_SHELL=/opt/freeware/bin/bash
+ % export CONFIG_SHELL
+ </pre></div>
  
! <p>and then proceed as described in <a href="build.html">the build
! instructions</a>, where we strongly recommend specifying an absolute path
  to invoke <var>srcdir</var>/configure.
! </p>
! <p>Because GCC on AIX is built as a 32-bit executable by default,
  (although it can generate 64-bit programs) the GMP and MPFR libraries
  required by gfortran must be 32-bit libraries.  Building GMP and MPFR
  as static archive libraries works better than shared libraries.
! </p>
! <p>Errors involving <code>alloca</code> when building GCC generally are due
  to an incorrect definition of <code>CC</code> in the Makefile or mixing files
  compiled with the native C compiler and GCC.  During the stage1 phase of
! the build, the native AIX compiler <strong>must</strong> be invoked as <code>cc</code>
! (not <code>xlc</code>).  Once <code>configure</code> has been informed of
! <code>xlc</code>, one needs to use &lsquo;<samp>make distclean</samp>&rsquo; to remove the
! configure cache files and ensure that <code>CC</code> environment variable
! does not provide a definition that will confuse <code>configure</code>.
  If this error occurs during stage2 or later, then the problem most likely
  is the version of Make (see above).
! </p>
! <p>The native <code>as</code> and <code>ld</code> are recommended for
  bootstrapping on AIX.  The GNU Assembler, GNU Linker, and GNU
  Binutils version 2.20 is the minimum level that supports bootstrap on
! AIX 5.  The GNU Assembler has not been updated to support AIX 6&nbsp;or
  AIX 7.  The native AIX tools do interoperate with GCC.
! </p>
! <p>AIX 7.1 added partial support for DWARF debugging, but full support
  requires AIX 7.1 TL03 SP7 that supports additional DWARF sections and
  fixes a bug in the assembler.  AIX 7.1 TL03 SP5 distributed a version
  of libm.a missing important symbols; a fix for IV77796 will be
  included in SP6.
! </p>
! <p>AIX 5.3 TL10, AIX 6.1 TL05 and AIX 7.1 TL00 introduced an AIX
  assembler change that sometimes produces corrupt assembly files
  causing AIX linker errors.  The bug breaks GCC bootstrap on AIX and
  can cause compilation failures with existing GCC installations.  An
*************** AIX iFix for AIX 5.3 is available (APAR
*** 701,1503 ****
  IZ98477 for AIX 5.3 TL11 and IZ98134 for AIX 5.3 TL12). AIX 5.3 TL11 SP8,
  AIX 5.3 TL12 SP5, AIX 6.1 TL04 SP11, AIX 6.1 TL05 SP7, AIX 6.1 TL06 SP6,
  AIX 6.1 TL07 and AIX 7.1 TL01 should include the fix.
! 
!    <p>Building <samp><span class="file">libstdc++.a</span></samp> requires a fix for an AIX Assembler bug
  APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1).  It also requires a
  fix for another AIX Assembler bug and a co-dependent AIX Archiver fix
  referenced as APAR IY53606 (AIX 5.2) or as APAR IY54774 (AIX 5.1)
! 
!    <p><a name="TransferAixShobj"></a>&lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo; in GCC 3.4 increments the major version number of the
! shared object and GCC installation places the <samp><span class="file">libstdc++.a</span></samp>
  shared library in a common location which will overwrite the and GCC
  3.3 version of the shared library.  Applications either need to be
  re-linked against the new shared library or the GCC 3.1 and GCC 3.3
! versions of the &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo; shared object needs to be available
! to the AIX runtime loader.  The GCC 3.1 &lsquo;<samp><span class="samp">libstdc++.so.4</span></samp>&rsquo;, if
! present, and GCC 3.3 &lsquo;<samp><span class="samp">libstdc++.so.5</span></samp>&rsquo; shared objects can be
  installed for runtime dynamic loading using the following steps to set
! the &lsquo;<samp><span class="samp">F_LOADONLY</span></samp>&rsquo; flag in the shared object for <em>each</em>
! multilib <samp><span class="file">libstdc++.a</span></samp> installed:
  
!    <p>Extract the shared objects from the currently installed
! <samp><span class="file">libstdc++.a</span></samp> archive:
! <pre class="smallexample">     % ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5
! </pre>
!    <p>Enable the &lsquo;<samp><span class="samp">F_LOADONLY</span></samp>&rsquo; flag so that the shared object will be
  available for runtime dynamic loading, but not linking:
! <pre class="smallexample">     % strip -e libstdc++.so.4 libstdc++.so.5
! </pre>
!    <p>Archive the runtime-only shared object in the GCC 3.4
! <samp><span class="file">libstdc++.a</span></samp> archive:
! <pre class="smallexample">     % ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5
! </pre>
!    <p>Eventually, the
! <a href="./configure.html#WithAixSoname"><samp><span class="option">--with-aix-soname=svr4</span></samp></a>
  configure option may drop the need for this procedure for libraries that
  support it.
! 
!    <p>Linking executables and shared libraries may produce warnings of
  duplicate symbols.  The assembly files generated by GCC for AIX always
  have included multiple symbol definitions for certain global variable
  and function declarations in the original program.  The warnings should
  not prevent the linker from producing a correct library or runnable
  executable.
! 
!    <p>AIX 4.3 utilizes a &ldquo;large format&rdquo; archive to support both 32-bit and
  64-bit object modules.  The routines provided in AIX 4.3.0 and AIX 4.3.1
! to parse archive libraries did not handle the new format correctly. 
  These routines are used by GCC and result in error messages during
  linking such as &ldquo;not a COFF file&rdquo;.  The version of the routines shipped
! with AIX 4.3.1 should work for a 32-bit environment.  The <samp><span class="option">-g</span></samp>
  option of the archive command may be used to create archives of 32-bit
  objects using the original &ldquo;small format&rdquo;.  A correct version of the
  routines is shipped with AIX 4.3.2 and above.
! 
!    <p>Some versions of the AIX binder (linker) can fail with a relocation
! overflow severe error when the <samp><span class="option">-bbigtoc</span></samp> option is used to link
  GCC-produced object files into an executable that overflows the TOC.  A fix
  for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is
  available from IBM Customer Support and from its
  <a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
  website as PTF U455193.
! 
!    <p>The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
  with a segmentation fault when invoked by any version of GCC.  A fix for
  APAR IX87327 is available from IBM Customer Support and from its
  <a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
  website as PTF U461879.  This fix is incorporated in AIX 4.3.3 and above.
! 
!    <p>The initial assembler shipped with AIX 4.3.0 generates incorrect object
  files.  A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS
  TO ASSEMBLE/BIND) is available from IBM Customer Support and from its
  <a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
  website as PTF U453956.  This fix is incorporated in AIX 4.3.1 and above.
! 
!    <p>AIX provides National Language Support (NLS).  Compilers and assemblers
  use NLS to support locale-specific representations of various data
! formats including floating-point numbers (e.g., &lsquo;<samp><span class="samp">.</span></samp>&rsquo;  vs &lsquo;<samp><span class="samp">,</span></samp>&rsquo; for
  separating decimal fractions).  There have been problems reported where
  GCC does not produce the same floating-point formats that the assembler
! expects.  If one encounters this problem, set the <samp><span class="env">LANG</span></samp>
! environment variable to &lsquo;<samp><span class="samp">C</span></samp>&rsquo; or &lsquo;<samp><span class="samp">En_US</span></samp>&rsquo;.
! 
!    <p>A default can be specified with the <samp><span class="option">-mcpu=</span><var>cpu_type</var></samp>
! switch and using the configure option <samp><span class="option">--with-cpu-</span><var>cpu_type</var></samp>.
! 
!    <p><hr /><a name="iq2000_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC25"></a>iq2000-*-elf</h3>
! 
  <p>Vitesse IQ2000 processors.  These are used in embedded
  applications.  There are no standard Unix configurations.
! 
!    <p><hr /><a name="lm32_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC26"></a>lm32-*-elf</h3>
! 
! <p>Lattice Mico32 processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="lm32_002dx_002duclinux"></a>
! 
! <h3 class="heading"><a name="TOC27"></a>lm32-*-uclinux</h3>
! 
! <p>Lattice Mico32 processor. 
  This configuration is intended for embedded systems running uClinux.
! 
!    <p><hr /><a name="m32c_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC28"></a>m32c-*-elf</h3>
! 
! <p>Renesas M32C processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="m32r_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC29"></a>m32r-*-elf</h3>
! 
! <p>Renesas M32R processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="m68k_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC30"></a>m68k-*-*</h3>
! 
  <p>By default,
! &lsquo;<samp><span class="samp">m68k-*-elf*</span></samp>&rsquo;, &lsquo;<samp><span class="samp">m68k-*-rtems</span></samp>&rsquo;,  &lsquo;<samp><span class="samp">m68k-*-uclinux</span></samp>&rsquo; and
! &lsquo;<samp><span class="samp">m68k-*-linux</span></samp>&rsquo;
  build libraries for both M680x0 and ColdFire processors.  If you only
  need the M680x0 libraries, you can omit the ColdFire ones by passing
! <samp><span class="option">--with-arch=m68k</span></samp> to <samp><span class="command">configure</span></samp>.  Alternatively, you
! can omit the M680x0 libraries by passing <samp><span class="option">--with-arch=cf</span></samp> to
! <samp><span class="command">configure</span></samp>.  These targets default to 5206 or 5475 code as
  appropriate for the target system when
! configured with <samp><span class="option">--with-arch=cf</span></samp> and 68020 code otherwise.
! 
!    <p>The &lsquo;<samp><span class="samp">m68k-*-netbsd</span></samp>&rsquo; and
! &lsquo;<samp><span class="samp">m68k-*-openbsd</span></samp>&rsquo; targets also support the <samp><span class="option">--with-arch</span></samp>
  option.  They will generate ColdFire CFV4e code when configured with
! <samp><span class="option">--with-arch=cf</span></samp> and 68020 code otherwise.
! 
!    <p>You can override the default processors listed above by configuring
! with <samp><span class="option">--with-cpu=</span><var>target</var></samp>.  This <var>target</var> can either
! be a <samp><span class="option">-mcpu</span></samp> argument or one of the following values:
! &lsquo;<samp><span class="samp">m68000</span></samp>&rsquo;, &lsquo;<samp><span class="samp">m68010</span></samp>&rsquo;, &lsquo;<samp><span class="samp">m68020</span></samp>&rsquo;, &lsquo;<samp><span class="samp">m68030</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">m68040</span></samp>&rsquo;, &lsquo;<samp><span class="samp">m68060</span></samp>&rsquo;, &lsquo;<samp><span class="samp">m68020-40</span></samp>&rsquo; and &lsquo;<samp><span class="samp">m68020-60</span></samp>&rsquo;.
! 
!    <p>GCC requires at least binutils version 2.17 on these targets.
! 
!    <p><hr /><a name="m68k_002dx_002duclinux"></a>
! 
! <h3 class="heading"><a name="TOC31"></a>m68k-*-uclinux</h3>
! 
  <p>GCC 4.3 changed the uClinux configuration so that it uses the
! &lsquo;<samp><span class="samp">m68k-linux-gnu</span></samp>&rsquo; ABI rather than the &lsquo;<samp><span class="samp">m68k-elf</span></samp>&rsquo; ABI. 
  It also added improved support for C++ and flat shared libraries,
  both of which were ABI changes.
! 
!    <p><hr /><a name="mep_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC32"></a>mep-*-elf</h3>
! 
! <p>Toshiba Media embedded Processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="microblaze_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC33"></a>microblaze-*-elf</h3>
! 
! <p>Xilinx MicroBlaze processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="mips_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC34"></a>mips-*-*</h3>
! 
  <p>If on a MIPS system you get an error message saying &ldquo;does not have gp
! sections for all it's [sic] sectons [sic]&rdquo;, don't worry about it.  This
  happens whenever you use GAS with the MIPS linker, but there is not
  really anything wrong, and it is okay to use the output file.  You can
  stop such warnings by installing the GNU linker.
! 
!    <p>It would be nice to extend GAS to produce the gp tables, but they are
  optional, and there should not be a warning about their absence.
! 
!    <p>The libstdc++ atomic locking routines for MIPS targets requires MIPS II
  and later.  A patch went in just after the GCC 3.3 release to
! make &lsquo;<samp><span class="samp">mips*-*-*</span></samp>&rsquo; use the generic implementation instead.  You can also
! configure for &lsquo;<samp><span class="samp">mipsel-elf</span></samp>&rsquo; as a workaround.  The
! &lsquo;<samp><span class="samp">mips*-*-linux*</span></samp>&rsquo; target continues to use the MIPS II routines.  More
  work on this is expected in future releases.
  
! <!-- If you make -with-llsc the default for another target, please also -->
! <!-- update the description of the -with-llsc option. -->
!    <p>The built-in <code>__sync_*</code> functions are available on MIPS II and
! later systems and others that support the &lsquo;<samp><span class="samp">ll</span></samp>&rsquo;, &lsquo;<samp><span class="samp">sc</span></samp>&rsquo; and
! &lsquo;<samp><span class="samp">sync</span></samp>&rsquo; instructions.  This can be overridden by passing
! <samp><span class="option">--with-llsc</span></samp> or <samp><span class="option">--without-llsc</span></samp> when configuring GCC. 
  Since the Linux kernel emulates these instructions if they are
! missing, the default for &lsquo;<samp><span class="samp">mips*-*-linux*</span></samp>&rsquo; targets is
! <samp><span class="option">--with-llsc</span></samp>.  The <samp><span class="option">--with-llsc</span></samp> and
! <samp><span class="option">--without-llsc</span></samp> configure options may be overridden at compile
! time by passing the <samp><span class="option">-mllsc</span></samp> or <samp><span class="option">-mno-llsc</span></samp> options to
  the compiler.
! 
!    <p>MIPS systems check for division by zero (unless
! <samp><span class="option">-mno-check-zero-division</span></samp> is passed to the compiler) by
  generating either a conditional trap or a break instruction.  Using
  trap results in smaller code, but is only supported on MIPS II and
  later.  Also, some versions of the Linux kernel have a bug that
  prevents trap from generating the proper signal (<code>SIGFPE</code>).  To enable
! the use of break, use the <samp><span class="option">--with-divide=breaks</span></samp>
! <samp><span class="command">configure</span></samp> option when configuring GCC.  The default is to
  use traps on systems that support them.
! 
!    <p>The assembler from GNU binutils 2.17 and earlier has a bug in the way
  it sorts relocations for REL targets (o32, o64, EABI).  This can cause
  bad code to be generated for simple C++ programs.  Also the linker
  from GNU binutils versions prior to 2.17 has a bug which causes the
! runtime linker stubs in very large programs, like <samp><span class="file">libgcj.so</span></samp>, to
  be incorrectly generated.  GNU Binutils 2.18 and later (and snapshots
  made after Nov. 9, 2006) should be free from both of these problems.
! 
!    <p><hr /><a name="mips_002dsgi_002dirix5"></a>
! 
! <h3 class="heading"><a name="TOC35"></a>mips-sgi-irix5</h3>
! 
  <p>Support for IRIX 5 has been removed in GCC 4.6.
! 
!    <p><hr /><a name="mips_002dsgi_002dirix6"></a>
! 
! <h3 class="heading"><a name="TOC36"></a>mips-sgi-irix6</h3>
! 
  <p>Support for IRIX 6.5 has been removed in GCC 4.8.  Support for IRIX 6
  releases before 6.5 has been removed in GCC 4.6, as well as support for
  the O32 ABI.
! 
!    <p><hr /><a name="moxie_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC37"></a>moxie-*-elf</h3>
! 
  <p>The moxie processor.
! 
!    <p><hr /><a name="msp430_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC38"></a>msp430-*-elf</h3>
! 
! <p>TI MSP430 processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="nds32le_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC39"></a>nds32le-*-elf</h3>
! 
  <p>Andes NDS32 target in little endian mode.
! 
!    <p><hr /><a name="nds32be_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC40"></a>nds32be-*-elf</h3>
! 
  <p>Andes NDS32 target in big endian mode.
! 
!    <p><hr /><a name="nvptx_002dx_002dnone"></a>
! 
! <h3 class="heading"><a name="TOC41"></a>nvptx-*-none</h3>
! 
  <p>Nvidia PTX target.
! 
!    <p>Instead of GNU binutils, you will need to install
! <a href="https://github.com/MentorEmbedded/nvptx-tools/">nvptx-tools</a>. 
  Tell GCC where to find it:
! <samp><span class="option">--with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin</span></samp>.
! 
!    <p>A nvptx port of newlib is available at
! <a href="https://github.com/MentorEmbedded/nvptx-newlib/">nvptx-newlib</a>. 
  It can be automatically built together with GCC.  For this, add a
! symbolic link to nvptx-newlib's <samp><span class="file">newlib</span></samp> directory to the
  directory containing the GCC sources.
! 
!    <p>Use the <samp><span class="option">--disable-sjlj-exceptions</span></samp> and
! <samp><span class="option">--enable-newlib-io-long-long</span></samp> options when configuring.
! 
!    <p><hr /><a name="powerpc_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC42"></a>powerpc-*-*</h3>
! 
! <p>You can specify a default version for the <samp><span class="option">-mcpu=</span><var>cpu_type</var></samp>
! switch by using the configure option <samp><span class="option">--with-cpu-</span><var>cpu_type</var></samp>.
! 
!    <p>You will need
  <a href="ftp://ftp.kernel.org/pub/linux/devel/binutils">binutils 2.15</a>
  or newer for a working GCC.
! 
!    <p><hr /><a name="powerpc_002dx_002ddarwin"></a>
! 
! <h3 class="heading"><a name="TOC43"></a>powerpc-*-darwin*</h3>
! 
  <p>PowerPC running Darwin (Mac OS X kernel).
! 
!    <p>Pre-installed versions of Mac OS X may not include any developer tools,
  meaning that you will not be able to build GCC from source.  Tool
  binaries are available at
  <a href="http://opensource.apple.com/">http://opensource.apple.com/</a>.
! 
!    <p>This version of GCC requires at least cctools-590.36.  The
  cctools-590.36 package referenced from
  <a href="http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html">http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html</a> will not work
  on systems older than 10.3.9 (aka darwin7.9.0).
! 
!    <p><hr /><a name="powerpc_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC44"></a>powerpc-*-elf</h3>
! 
  <p>PowerPC system in big endian mode, running System V.4.
! 
!    <p><hr /><a name="powerpc_002dx_002dlinux_002dgnu"></a>
! 
! <h3 class="heading"><a name="TOC45"></a>powerpc*-*-linux-gnu*</h3>
! 
  <p>PowerPC system in big endian mode running Linux.
! 
!    <p><hr /><a name="powerpc_002dx_002dnetbsd"></a>
! 
! <h3 class="heading"><a name="TOC46"></a>powerpc-*-netbsd*</h3>
! 
  <p>PowerPC system in big endian mode running NetBSD.
! 
!    <p><hr /><a name="powerpc_002dx_002deabisim"></a>
! 
! <h3 class="heading"><a name="TOC47"></a>powerpc-*-eabisim</h3>
! 
  <p>Embedded PowerPC system in big endian mode for use in running under the
  PSIM simulator.
! 
!    <p><hr /><a name="powerpc_002dx_002deabi"></a>
! 
! <h3 class="heading"><a name="TOC48"></a>powerpc-*-eabi</h3>
! 
  <p>Embedded PowerPC system in big endian mode.
! 
!    <p><hr /><a name="powerpcle_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC49"></a>powerpcle-*-elf</h3>
! 
  <p>PowerPC system in little endian mode, running System V.4.
! 
!    <p><hr /><a name="powerpcle_002dx_002deabisim"></a>
! 
! <h3 class="heading"><a name="TOC50"></a>powerpcle-*-eabisim</h3>
! 
  <p>Embedded PowerPC system in little endian mode for use in running under
  the PSIM simulator.
! 
!    <p><hr /><a name="powerpcle_002dx_002deabi"></a>
! 
! <h3 class="heading"><a name="TOC51"></a>powerpcle-*-eabi</h3>
! 
  <p>Embedded PowerPC system in little endian mode.
! 
!    <p><hr /><a name="rl78_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC52"></a>rl78-*-elf</h3>
! 
! <p>The Renesas RL78 processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="rx_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC53"></a>rx-*-elf</h3>
! 
  <p>The Renesas RX processor.  See
  <a href="http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&amp;fp=/products/mpumcu/rx_family/rx600_series">http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&amp;fp=/products/mpumcu/rx_family/rx600_series</a>
  for more information about this processor.
! 
!    <p><hr /><a name="s390_002dx_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC54"></a>s390-*-linux*</h3>
! 
  <p>S/390 system running GNU/Linux for S/390.
! 
!    <p><hr /><a name="s390x_002dx_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC55"></a>s390x-*-linux*</h3>
! 
  <p>zSeries system (64-bit) running GNU/Linux for zSeries.
! 
!    <p><hr /><a name="s390x_002dibm_002dtpf"></a>
! 
! <h3 class="heading"><a name="TOC56"></a>s390x-ibm-tpf*</h3>
! 
  <p>zSeries system (64-bit) running TPF.  This platform is
  supported as cross-compilation target only.
! 
!    <p><hr /><!-- Please use Solaris 2 to refer to all release of Solaris, starting -->
! <!-- with 2.0 until 2.6, 7, 8, etc.  Solaris 1 was a marketing name for -->
! <!-- SunOS 4 releases which we don't use to avoid confusion.  Solaris -->
! <!-- alone is too unspecific and must be avoided. -->
! <a name="x_002dx_002dsolaris2"></a>
! 
! <h3 class="heading"><a name="TOC57"></a>*-*-solaris2*</h3>
! 
  <p>Support for Solaris 9 has been removed in GCC 5.  Support for Solaris
  8 has been removed in GCC 4.8.  Support for Solaris 7 has been removed
  in GCC 4.6.
! 
!    <p>Sun does not ship a C compiler with Solaris 2 before Solaris 10, though
  you can download the Sun Studio compilers for free.  In Solaris 10 and
! 11, GCC 3.4.3 is available as <samp><span class="command">/usr/sfw/bin/gcc</span></samp>.  Solaris 11
  also provides GCC 4.5.2, 4.7.3, and 4.8.2 as
! <samp><span class="command">/usr/gcc/4.5/bin/gcc</span></samp> or similar.  Alternatively,
  you can install a pre-built GCC to bootstrap and install GCC.  See the
  <a href="binaries.html">binaries page</a> for details.
! 
!    <p>The Solaris 2 <samp><span class="command">/bin/sh</span></samp> will often fail to configure
! &lsquo;<samp><span class="samp">libstdc++-v3</span></samp>&rsquo;, &lsquo;<samp><span class="samp">boehm-gc</span></samp>&rsquo; or &lsquo;<samp><span class="samp">libjava</span></samp>&rsquo;.  We therefore
  recommend using the following initial sequence of commands
  
! <pre class="smallexample">     % CONFIG_SHELL=/bin/ksh
!      % export CONFIG_SHELL
! </pre>
!    <p class="noindent">and proceed as described in <a href="configure.html">the configure instructions</a>. 
  In addition we strongly recommend specifying an absolute path to invoke
! <samp><var>srcdir</var><span class="command">/configure</span></samp>.
! 
!    <p>Solaris 10 comes with a number of optional OS packages.  Some of these
  are needed to use GCC fully, namely <code>SUNWarc</code>,
  <code>SUNWbtool</code>, <code>SUNWesu</code>, <code>SUNWhea</code>, <code>SUNWlibm</code>,
  <code>SUNWsprot</code>, and <code>SUNWtoo</code>.  If you did not install all
  optional packages when installing Solaris 10, you will need to verify that
! the packages that GCC needs are installed. 
  To check whether an optional package is installed, use
! the <samp><span class="command">pkginfo</span></samp> command.  To add an optional package, use the
! <samp><span class="command">pkgadd</span></samp> command.  For further details, see the Solaris 10
  documentation.
! 
!    <p>Starting with Solaris 11, the package management has changed, so you
  need to check for <code>system/header</code>, <code>system/linker</code>, and
  <code>developer/assembler</code> packages.  Checking for and installing
! packages is done with the <samp><span class="command">pkg</span></samp> command now.
! 
!    <p>Trying to use the linker and other tools in
! <samp><span class="file">/usr/ucb</span></samp> to install GCC has been observed to cause trouble. 
  For example, the linker may hang indefinitely.  The fix is to remove
! <samp><span class="file">/usr/ucb</span></samp> from your <samp><span class="env">PATH</span></samp>.
! 
!    <p>The build process works more smoothly with the legacy Sun tools so, if you
! have <samp><span class="file">/usr/xpg4/bin</span></samp> in your <samp><span class="env">PATH</span></samp>, we recommend that you place
! <samp><span class="file">/usr/bin</span></samp> before <samp><span class="file">/usr/xpg4/bin</span></samp> for the duration of the build.
! 
!    <p>We recommend the use of the Solaris assembler or the GNU assembler, in
! conjunction with the Solaris linker.  The GNU <samp><span class="command">as</span></samp>
  versions included in Solaris 10, from GNU binutils 2.15 (in
! <samp><span class="file">/usr/sfw/bin/gas</span></samp>), and Solaris 11,
! from GNU binutils 2.19 or newer (also in <samp><span class="file">/usr/bin/gas</span></samp> and
! <samp><span class="file">/usr/gnu/bin/as</span></samp>), are known to work. 
  Current versions of GNU binutils (2.26)
  are known to work as well, with the caveat mentioned in
  <a href="#ix86-x-solaris210">i?86-*-solaris2.10</a> .  Note that your mileage may vary
  if you use a combination of the GNU tools and the Solaris tools: while the
! combination GNU <samp><span class="command">as</span></samp> + Sun <samp><span class="command">ld</span></samp> should reasonably work,
! the reverse combination Sun <samp><span class="command">as</span></samp> + GNU <samp><span class="command">ld</span></samp> may fail to
! build or cause memory corruption at runtime in some cases for C++ programs. 
! <!-- FIXME: still? -->
! GNU <samp><span class="command">ld</span></samp> usually works as well, although the version included in
  Solaris 10 cannot be used due to several bugs.  Again, the current
  version (2.26) is known to work, but generally lacks platform specific
! features, so better stay with Solaris <samp><span class="command">ld</span></samp>.  To use the LTO linker
! plugin (<samp><span class="option">-fuse-linker-plugin</span></samp>) with GNU <samp><span class="command">ld</span></samp>, GNU
! binutils <em>must</em> be configured with <samp><span class="option">--enable-largefile</span></samp>.
! 
!    <p>To enable symbol versioning in &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo; with the Solaris linker,
! you need to have any version of GNU <samp><span class="command">c++filt</span></samp>, which is part of
! GNU binutils.  &lsquo;<samp><span class="samp">libstdc++</span></samp>&rsquo; symbol versioning will be disabled if no
! appropriate version is found.  Solaris <samp><span class="command">c++filt</span></samp> from the Solaris
  Studio compilers does <em>not</em> work.
! 
!    <p>GNU <samp><span class="command">make</span></samp> version 3.81 or later is required to build libjava
  with the Solaris linker.
! 
!    <p>Sun bug 4927647 sometimes causes random spurious testsuite failures
! related to missing diagnostic output.  This bug doesn't affect GCC
! itself, rather it is a kernel bug triggered by the <samp><span class="command">expect</span></samp>
  program which is used only by the GCC testsuite driver.  When the bug
! causes the <samp><span class="command">expect</span></samp> program to miss anticipated output, extra
  testsuite failures appear.
! 
!    <p><hr /><a name="sparc_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC58"></a>sparc*-*-*</h3>
! 
  <p>This section contains general configuration information for all
  SPARC-based platforms.  In addition to reading this section, please
  read all other sections that match your target.
! 
!    <p>Newer versions of the GNU Multiple Precision Library (GMP), the MPFR
  library and the MPC library are known to be miscompiled by earlier
  versions of GCC on these platforms.  We therefore recommend the use
  of the exact versions of these libraries listed as minimal versions
  in <a href="prerequisites.html">the prerequisites</a>.
! 
!    <p><hr /><a name="sparc_002dsun_002dsolaris2"></a>
! 
! <h3 class="heading"><a name="TOC59"></a>sparc-sun-solaris2*</h3>
! 
  <p>When GCC is configured to use GNU binutils 2.14 or later, the binaries
! produced are smaller than the ones produced using Sun's native tools;
  this difference is quite significant for binaries containing debugging
  information.
! 
!    <p>Starting with Solaris 7, the operating system is capable of executing
  64-bit SPARC V9 binaries.  GCC 3.1 and later properly supports
! this; the <samp><span class="option">-m64</span></samp> option enables 64-bit code generation. 
  However, if all you want is code tuned for the UltraSPARC CPU, you
! should try the <samp><span class="option">-mtune=ultrasparc</span></samp> option instead, which produces
  code that, unlike full 64-bit code, can still run on non-UltraSPARC
  machines.
! 
!    <p>When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library on a Solaris 7 or later system, the canonical
! target triplet must be specified as the <samp><span class="command">build</span></samp> parameter on the
! configure line.  This target triplet can be obtained by invoking <samp><span class="command">./config.guess</span></samp> in the toplevel source directory of GCC (and
  not that of GMP or MPFR or MPC).  For example on a Solaris 9 system:
  
! <pre class="smallexample">     % ./configure --build=sparc-sun-solaris2.9 --prefix=xxx
! </pre>
!    <p><hr /><a name="sparc_002dsun_002dsolaris210"></a>
! 
! <h3 class="heading"><a name="TOC60"></a>sparc-sun-solaris2.10</h3>
! 
  <p>There is a bug in older versions of the Sun assembler which breaks
  thread-local storage (TLS).  A typical error message is
  
! <pre class="smallexample">     ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o:
!        symbol &lt;unknown&gt;: bad symbol type SECT: symbol type must be TLS
! </pre>
!    <p class="noindent">This bug is fixed in Sun patch 118683-03 or later.
! 
!    <p><hr /><a name="sparc_002dx_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC61"></a>sparc-*-linux*</h3>
  
  <p>GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4
  or newer on this platform.  All earlier binutils and glibc
  releases mishandled unaligned relocations on <code>sparc-*-*</code> targets.
  
!    <p><hr /><a name="sparc64_002dx_002dsolaris2"></a>
! 
! <h3 class="heading"><a name="TOC62"></a>sparc64-*-solaris2*</h3>
! 
  <p>When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library, the canonical target triplet must be specified
! as the <samp><span class="command">build</span></samp> parameter on the configure line.  For example
  on a Solaris 9 system:
  
! <pre class="smallexample">     % ./configure --build=sparc64-sun-solaris2.9 --prefix=xxx
! </pre>
!    <p><hr /><a name="sparcv9_002dx_002dsolaris2"></a>
! 
! <h3 class="heading"><a name="TOC63"></a>sparcv9-*-solaris2*</h3>
! 
! <p>This is a synonym for &lsquo;<samp><span class="samp">sparc64-*-solaris2*</span></samp>&rsquo;.
! 
!    <p><hr /><a name="c6x_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC64"></a>c6x-*-*</h3>
! 
  <p>The C6X family of processors. This port requires binutils-2.22 or newer.
! 
!    <p><hr /><a name="tilegx_002d_002a_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC65"></a>tilegx-*-linux*</h3>
! 
  <p>The TILE-Gx processor in little endian mode, running GNU/Linux.  This
  port requires binutils-2.22 or newer.
! 
!    <p><hr /><a name="tilegxbe_002d_002a_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC66"></a>tilegxbe-*-linux*</h3>
! 
  <p>The TILE-Gx processor in big endian mode, running GNU/Linux.  This
  port requires binutils-2.23 or newer.
! 
!    <p><hr /><a name="tilepro_002d_002a_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC67"></a>tilepro-*-linux*</h3>
! 
  <p>The TILEPro processor running GNU/Linux.  This port requires
  binutils-2.22 or newer.
! 
!    <p><hr /><a name="visium_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC68"></a>visium-*-elf</h3>
! 
! <p>CDS VISIUMcore processor. 
  This configuration is intended for embedded systems.
! 
!    <p><hr /><a name="x_002dx_002dvxworks"></a>
! 
! <h3 class="heading"><a name="TOC69"></a>*-*-vxworks*</h3>
! 
  <p>Support for VxWorks is in flux.  At present GCC supports <em>only</em> the
! very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC. 
! We welcome patches for other architectures supported by VxWorks 5.5. 
  Support for VxWorks AE would also be welcome; we believe this is merely
  a matter of writing an appropriate &ldquo;configlette&rdquo; (see below).  We are
  not interested in supporting older, a.out or COFF-based, versions of
  VxWorks in GCC 3.
! 
!    <p>VxWorks comes with an older version of GCC installed in
! <samp><var>$WIND_BASE</var><span class="file">/host</span></samp>; we recommend you do not overwrite it. 
! Choose an installation <var>prefix</var> entirely outside <var>$WIND_BASE</var>. 
! Before running <samp><span class="command">configure</span></samp>, create the directories <samp><var>prefix</var></samp>
! and <samp><var>prefix</var><span class="file">/bin</span></samp>.  Link or copy the appropriate assembler,
! linker, etc. into <samp><var>prefix</var><span class="file">/bin</span></samp>, and set your <var>PATH</var> to
! include that directory while running both <samp><span class="command">configure</span></samp> and
! <samp><span class="command">make</span></samp>.
! 
!    <p>You must give <samp><span class="command">configure</span></samp> the
! <samp><span class="option">--with-headers=</span><var>$WIND_BASE</var><span class="option">/target/h</span></samp> switch so that it can
  find the VxWorks system headers.  Since VxWorks is a cross compilation
! target only, you must also specify <samp><span class="option">--target=</span><var>target</var></samp>. 
! <samp><span class="command">configure</span></samp> will attempt to create the directory
! <samp><var>prefix</var><span class="file">/</span><var>target</var><span class="file">/sys-include</span></samp> and copy files into it;
! make sure the user running <samp><span class="command">configure</span></samp> has sufficient privilege
  to do so.
! 
!    <p>GCC's exception handling runtime requires a special &ldquo;configlette&rdquo;
! module, <samp><span class="file">contrib/gthr_supp_vxw_5x.c</span></samp>.  Follow the instructions in
  that file to add the module to your kernel build.  (Future versions of
  VxWorks will incorporate this module.)
! 
!    <p><hr /><a name="x86_002d64_002dx_002dx"></a>
! 
! <h3 class="heading"><a name="TOC70"></a>x86_64-*-*, amd64-*-*</h3>
! 
  <p>GCC supports the x86-64 architecture implemented by the AMD64 processor
! (amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD. 
  On GNU/Linux the default is a bi-arch compiler which is able to generate
! both 64-bit x86-64 and 32-bit x86 code (via the <samp><span class="option">-m32</span></samp> switch).
! 
!    <p><hr /><a name="x86_002d64_002dx_002dsolaris210"></a>
! 
! <h3 class="heading"><a name="TOC71"></a>x86_64-*-solaris2.1[0-9]*</h3>
! 
  <p>GCC also supports the x86-64 architecture implemented by the AMD64
! processor (&lsquo;<samp><span class="samp">amd64-*-*</span></samp>&rsquo; is an alias for &lsquo;<samp><span class="samp">x86_64-*-*</span></samp>&rsquo;) on
  Solaris 10 or later.  Unlike other systems, without special options a
  bi-arch compiler is built which generates 32-bit code by default, but
! can generate 64-bit x86-64 code with the <samp><span class="option">-m64</span></samp> switch.  Since
  GCC 4.7, there is also a configuration that defaults to 64-bit code, but
! can generate 32-bit code with <samp><span class="option">-m32</span></samp>.  To configure and build
! this way, you have to provide all support libraries like <samp><span class="file">libgmp</span></samp>
! as 64-bit code, configure with <samp><span class="option">--target=x86_64-pc-solaris2.1x</span></samp>
! and &lsquo;<samp><span class="samp">CC=gcc -m64</span></samp>&rsquo;.
! 
!    <p><hr /><a name="xtensa_002dx_002delf"></a>
! 
! <h3 class="heading"><a name="TOC72"></a>xtensa*-*-elf</h3>
! 
  <p>This target is intended for embedded Xtensa systems using the
! &lsquo;<samp><span class="samp">newlib</span></samp>&rsquo; C library.  It uses ELF but does not support shared
  objects.  Designed-defined instructions specified via the
  Tensilica Instruction Extension (TIE) language are only supported
  through inline assembly.
! 
!    <p>The Xtensa configuration information must be specified prior to
! building GCC.  The <samp><span class="file">include/xtensa-config.h</span></samp> header
  file contains the configuration information.  If you created your
  own Xtensa configuration with the Xtensa Processor Generator, the
  downloaded files include a customized copy of this header file,
  which you can use to replace the default header file.
! 
!    <p><hr /><a name="xtensa_002dx_002dlinux"></a>
! 
! <h3 class="heading"><a name="TOC73"></a>xtensa*-*-linux*</h3>
! 
  <p>This target is for Xtensa systems running GNU/Linux.  It supports ELF
  shared objects and the GNU C library (glibc).  It also generates
  position-independent code (PIC) regardless of whether the
! <samp><span class="option">-fpic</span></samp> or <samp><span class="option">-fPIC</span></samp> options are used.  In other
  respects, this target is the same as the
! <a href="#xtensa*-*-elf">&lsquo;<samp><span class="samp">xtensa*-*-elf</span></samp>&rsquo;</a> target.
! 
!    <p><hr /><a name="windows"></a>
! 
! <h3 class="heading"><a name="TOC74"></a>Microsoft Windows</h3>
! 
! <h4 class="subheading"><a name="TOC75"></a>Intel 16-bit versions</h4>
  
  <p>The 16-bit versions of Microsoft Windows, such as Windows 3.1, are not
  supported.
! 
!    <p>However, the 32-bit port has limited support for Microsoft
  Windows 3.11 in the Win32s environment, as a target only.  See below.
! 
! <h4 class="subheading"><a name="TOC76"></a>Intel 32-bit versions</h4>
! 
  <p>The 32-bit versions of Windows, including Windows 95, Windows NT, Windows
  XP, and Windows Vista, are supported by several different target
  platforms.  These targets differ in which Windows subsystem they target
  and which C libraries are used.
  
!      <ul>
! <li>Cygwin <a href="#x-x-cygwin">*-*-cygwin</a>: Cygwin provides a user-space
! Linux API emulation layer in the Win32 subsystem. 
! <li>Interix <a href="#x-x-interix">*-*-interix</a>: The Interix subsystem
! provides native support for POSIX. 
! <li>MinGW <a href="#x-x-mingw32">*-*-mingw32</a>: MinGW is a native GCC port for
! the Win32 subsystem that provides a subset of POSIX. 
! <li>MKS i386-pc-mks: NuTCracker from MKS.  See
! <a href="http://www.mkssoftware.com/">http://www.mkssoftware.com/</a> for more information. 
! </ul>
! 
! <h4 class="subheading"><a name="TOC77"></a>Intel 64-bit versions</h4>
! 
  <p>GCC contains support for x86-64 using the mingw-w64
! runtime library, available from <a href="http://mingw-w64.sourceforge.net/">http://mingw-w64.sourceforge.net/</a>. 
  This library should be used with the target triple x86_64-pc-mingw32.
! 
!    <p>Presently Windows for Itanium is not supported.
! 
! <h4 class="subheading"><a name="TOC78"></a>Windows CE</h4>
! 
  <p>Windows CE is supported as a target only on Hitachi
  SuperH (sh-wince-pe), and MIPS (mips-wince-pe).
! 
! <h4 class="subheading"><a name="TOC79"></a>Other Windows Platforms</h4>
! 
  <p>GCC no longer supports Windows NT on the Alpha or PowerPC.
! 
!    <p>GCC no longer supports the Windows POSIX subsystem.  However, it does
  support the Interix subsystem.  See above.
! 
!    <p>Old target names including *-*-winnt and *-*-windowsnt are no longer used.
! 
!    <p>PW32 (i386-pc-pw32) support was never completed, and the project seems to
  be inactive.  See <a href="http://pw32.sourceforge.net/">http://pw32.sourceforge.net/</a> for more information.
! 
!    <p>UWIN support has been removed due to a lack of maintenance.
! 
!    <p><hr /><a name="x_002dx_002dcygwin"></a>
! 
! <h3 class="heading"><a name="TOC80"></a>*-*-cygwin</h3>
! 
  <p>Ports of GCC are included with the
  <a href="http://www.cygwin.com/">Cygwin environment</a>.
! 
!    <p>GCC will build under Cygwin without modification; it does not build
! with Microsoft's C++ compiler and there are no plans to make it do so.
! 
!    <p>The Cygwin native compiler can be configured to target any 32-bit x86
  cpu architecture desired; the default is i686-pc-cygwin.  It should be
  used with as up-to-date a version of binutils as possible; use either
  the latest official GNU binutils release in the Cygwin distribution,
  or version 2.20 or above if building your own.
! 
!    <p><hr /><a name="x_002dx_002dinterix"></a>
! 
! <h3 class="heading"><a name="TOC81"></a>*-*-interix</h3>
! 
  <p>The Interix target is used by OpenNT, Interix, Services For UNIX (SFU),
  and Subsystem for UNIX-based Applications (SUA).  Applications compiled
  with this target run in the Interix subsystem, which is separate from
  the Win32 subsystem.  This target was last known to work in GCC 3.3.
! 
!    <p><hr /><a name="x_002dx_002dmingw32"></a>
! 
! <h3 class="heading"><a name="TOC82"></a>*-*-mingw32</h3>
! 
! <p>GCC will build with and support only MinGW runtime 3.12 and later. 
  Earlier versions of headers are incompatible with the new default semantics
  of <code>extern inline</code> in <code>-std=c99</code> and <code>-std=gnu99</code> modes.
! 
!    <p><hr /><a name="older"></a>
! 
! <h3 class="heading"><a name="TOC83"></a>Older systems</h3>
! 
  <p>GCC contains support files for many older (1980s and early
  1990s) Unix variants.  For the most part, support for these systems
  has not been deliberately removed, but it has not been maintained for
  several years and may suffer from bitrot.
! 
!    <p>Starting with GCC 3.1, each release has a list of &ldquo;obsoleted&rdquo; systems. 
  Support for these systems is still present in that release, but
! <samp><span class="command">configure</span></samp> will fail unless the <samp><span class="option">--enable-obsolete</span></samp>
  option is given.  Unless a maintainer steps forward, support for these
  systems will be removed from the next release of GCC.
! 
!    <p>Support for old systems as hosts for GCC can cause problems if the
  workarounds for compiler, library and operating system bugs affect the
  cleanliness or maintainability of the rest of GCC.  In some cases, to
  bring GCC up on such a system, if still possible with current GCC, may
  require first installing an old version of GCC which did work on that
  system, and using it to compile a more recent GCC, to avoid bugs in the
  vendor compiler.  Old releases of GCC 1 and GCC 2 are available in the
! <samp><span class="file">old-releases</span></samp> directory on the <a href="../mirrors.html">GCC mirror sites</a>.  Header bugs may generally be avoided using
! <samp><span class="command">fixincludes</span></samp>, but bugs or deficiencies in libraries and the
  operating system may still cause problems.
! 
!    <p>Support for older systems as targets for cross-compilation is less
  problematic than support for them as hosts for GCC; if an enthusiast
  wishes to make such a target work again (including resurrecting any of
  the targets that never worked with GCC 2, starting from the last
--- 740,1500 ----
  IZ98477 for AIX 5.3 TL11 and IZ98134 for AIX 5.3 TL12). AIX 5.3 TL11 SP8,
  AIX 5.3 TL12 SP5, AIX 6.1 TL04 SP11, AIX 6.1 TL05 SP7, AIX 6.1 TL06 SP6,
  AIX 6.1 TL07 and AIX 7.1 TL01 should include the fix.
! </p>
! <p>Building <samp>libstdc++.a</samp> requires a fix for an AIX Assembler bug
  APAR IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1).  It also requires a
  fix for another AIX Assembler bug and a co-dependent AIX Archiver fix
  referenced as APAR IY53606 (AIX 5.2) or as APAR IY54774 (AIX 5.1)
! </p>
! <a name="TransferAixShobj"></a><p>&lsquo;<samp>libstdc++</samp>&rsquo; in GCC 3.4 increments the major version number of the
! shared object and GCC installation places the <samp>libstdc++.a</samp>
  shared library in a common location which will overwrite the and GCC
  3.3 version of the shared library.  Applications either need to be
  re-linked against the new shared library or the GCC 3.1 and GCC 3.3
! versions of the &lsquo;<samp>libstdc++</samp>&rsquo; shared object needs to be available
! to the AIX runtime loader.  The GCC 3.1 &lsquo;<samp>libstdc++.so.4</samp>&rsquo;, if
! present, and GCC 3.3 &lsquo;<samp>libstdc++.so.5</samp>&rsquo; shared objects can be
  installed for runtime dynamic loading using the following steps to set
! the &lsquo;<samp>F_LOADONLY</samp>&rsquo; flag in the shared object for <em>each</em>
! multilib <samp>libstdc++.a</samp> installed:
! </p>
! <p>Extract the shared objects from the currently installed
! <samp>libstdc++.a</samp> archive:
! </p><div class="smallexample">
! <pre class="smallexample">% ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5
! </pre></div>
  
! <p>Enable the &lsquo;<samp>F_LOADONLY</samp>&rsquo; flag so that the shared object will be
  available for runtime dynamic loading, but not linking:
! </p><div class="smallexample">
! <pre class="smallexample">% strip -e libstdc++.so.4 libstdc++.so.5
! </pre></div>
! 
! <p>Archive the runtime-only shared object in the GCC 3.4
! <samp>libstdc++.a</samp> archive:
! </p><div class="smallexample">
! <pre class="smallexample">% ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5
! </pre></div>
! 
! <p>Eventually, the
! <a href="./configure.html#WithAixSoname"><samp>--with-aix-soname=svr4</samp></a>
  configure option may drop the need for this procedure for libraries that
  support it.
! </p>
! <p>Linking executables and shared libraries may produce warnings of
  duplicate symbols.  The assembly files generated by GCC for AIX always
  have included multiple symbol definitions for certain global variable
  and function declarations in the original program.  The warnings should
  not prevent the linker from producing a correct library or runnable
  executable.
! </p>
! <p>AIX 4.3 utilizes a &ldquo;large format&rdquo; archive to support both 32-bit and
  64-bit object modules.  The routines provided in AIX 4.3.0 and AIX 4.3.1
! to parse archive libraries did not handle the new format correctly.
  These routines are used by GCC and result in error messages during
  linking such as &ldquo;not a COFF file&rdquo;.  The version of the routines shipped
! with AIX 4.3.1 should work for a 32-bit environment.  The <samp>-g</samp>
  option of the archive command may be used to create archives of 32-bit
  objects using the original &ldquo;small format&rdquo;.  A correct version of the
  routines is shipped with AIX 4.3.2 and above.
! </p>
! <p>Some versions of the AIX binder (linker) can fail with a relocation
! overflow severe error when the <samp>-bbigtoc</samp> option is used to link
  GCC-produced object files into an executable that overflows the TOC.  A fix
  for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC) is
  available from IBM Customer Support and from its
  <a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
  website as PTF U455193.
! </p>
! <p>The AIX 4.3.2.1 linker (bos.rte.bind_cmds Level 4.3.2.1) will dump core
  with a segmentation fault when invoked by any version of GCC.  A fix for
  APAR IX87327 is available from IBM Customer Support and from its
  <a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
  website as PTF U461879.  This fix is incorporated in AIX 4.3.3 and above.
! </p>
! <p>The initial assembler shipped with AIX 4.3.0 generates incorrect object
  files.  A fix for APAR IX74254 (64BIT DISASSEMBLED OUTPUT FROM COMPILER FAILS
  TO ASSEMBLE/BIND) is available from IBM Customer Support and from its
  <a href="http://techsupport.services.ibm.com/">techsupport.services.ibm.com</a>
  website as PTF U453956.  This fix is incorporated in AIX 4.3.1 and above.
! </p>
! <p>AIX provides National Language Support (NLS).  Compilers and assemblers
  use NLS to support locale-specific representations of various data
! formats including floating-point numbers (e.g., &lsquo;<samp>.</samp>&rsquo;  vs &lsquo;<samp>,</samp>&rsquo; for
  separating decimal fractions).  There have been problems reported where
  GCC does not produce the same floating-point formats that the assembler
! expects.  If one encounters this problem, set the <code>LANG</code>
! environment variable to &lsquo;<samp>C</samp>&rsquo; or &lsquo;<samp>En_US</samp>&rsquo;.
! </p>
! <p>A default can be specified with the <samp>-mcpu=<var>cpu_type</var></samp>
! switch and using the configure option <samp>--with-cpu-<var>cpu_type</var></samp>.
! </p>
! <hr />
! <a name="iq2000_002dx_002delf"></a><a name="iq2000_002d_002a_002delf"></a>
! <h3 class="heading">iq2000-*-elf</h3>
  <p>Vitesse IQ2000 processors.  These are used in embedded
  applications.  There are no standard Unix configurations.
! </p>
! <hr />
! <a name="lm32_002dx_002delf"></a><a name="lm32_002d_002a_002delf"></a>
! <h3 class="heading">lm32-*-elf</h3>
! <p>Lattice Mico32 processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="lm32_002dx_002duclinux"></a><a name="lm32_002d_002a_002duclinux"></a>
! <h3 class="heading">lm32-*-uclinux</h3>
! <p>Lattice Mico32 processor.
  This configuration is intended for embedded systems running uClinux.
! </p>
! <hr />
! <a name="m32c_002dx_002delf"></a><a name="m32c_002d_002a_002delf"></a>
! <h3 class="heading">m32c-*-elf</h3>
! <p>Renesas M32C processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="m32r_002dx_002delf"></a><a name="m32r_002d_002a_002delf"></a>
! <h3 class="heading">m32r-*-elf</h3>
! <p>Renesas M32R processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="m68k_002dx_002dx"></a><a name="m68k_002d_002a_002d_002a"></a>
! <h3 class="heading">m68k-*-*</h3>
  <p>By default,
! &lsquo;<samp>m68k-*-elf*</samp>&rsquo;, &lsquo;<samp>m68k-*-rtems</samp>&rsquo;,  &lsquo;<samp>m68k-*-uclinux</samp>&rsquo; and
! &lsquo;<samp>m68k-*-linux</samp>&rsquo;
  build libraries for both M680x0 and ColdFire processors.  If you only
  need the M680x0 libraries, you can omit the ColdFire ones by passing
! <samp>--with-arch=m68k</samp> to <code>configure</code>.  Alternatively, you
! can omit the M680x0 libraries by passing <samp>--with-arch=cf</samp> to
! <code>configure</code>.  These targets default to 5206 or 5475 code as
  appropriate for the target system when
! configured with <samp>--with-arch=cf</samp> and 68020 code otherwise.
! </p>
! <p>The &lsquo;<samp>m68k-*-netbsd</samp>&rsquo; and
! &lsquo;<samp>m68k-*-openbsd</samp>&rsquo; targets also support the <samp>--with-arch</samp>
  option.  They will generate ColdFire CFV4e code when configured with
! <samp>--with-arch=cf</samp> and 68020 code otherwise.
! </p>
! <p>You can override the default processors listed above by configuring
! with <samp>--with-cpu=<var>target</var></samp>.  This <var>target</var> can either
! be a <samp>-mcpu</samp> argument or one of the following values:
! &lsquo;<samp>m68000</samp>&rsquo;, &lsquo;<samp>m68010</samp>&rsquo;, &lsquo;<samp>m68020</samp>&rsquo;, &lsquo;<samp>m68030</samp>&rsquo;,
! &lsquo;<samp>m68040</samp>&rsquo;, &lsquo;<samp>m68060</samp>&rsquo;, &lsquo;<samp>m68020-40</samp>&rsquo; and &lsquo;<samp>m68020-60</samp>&rsquo;.
! </p>
! <p>GCC requires at least binutils version 2.17 on these targets.
! </p>
! <hr />
! <a name="m68k_002dx_002duclinux"></a><a name="m68k_002d_002a_002duclinux"></a>
! <h3 class="heading">m68k-*-uclinux</h3>
  <p>GCC 4.3 changed the uClinux configuration so that it uses the
! &lsquo;<samp>m68k-linux-gnu</samp>&rsquo; ABI rather than the &lsquo;<samp>m68k-elf</samp>&rsquo; ABI.
  It also added improved support for C++ and flat shared libraries,
  both of which were ABI changes.
! </p>
! <hr />
! <a name="mep_002dx_002delf"></a><a name="mep_002d_002a_002delf"></a>
! <h3 class="heading">mep-*-elf</h3>
! <p>Toshiba Media embedded Processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="microblaze_002dx_002delf"></a><a name="microblaze_002d_002a_002delf"></a>
! <h3 class="heading">microblaze-*-elf</h3>
! <p>Xilinx MicroBlaze processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="mips_002dx_002dx"></a><a name="mips_002d_002a_002d_002a"></a>
! <h3 class="heading">mips-*-*</h3>
  <p>If on a MIPS system you get an error message saying &ldquo;does not have gp
! sections for all it&rsquo;s [sic] sectons [sic]&rdquo;, don&rsquo;t worry about it.  This
  happens whenever you use GAS with the MIPS linker, but there is not
  really anything wrong, and it is okay to use the output file.  You can
  stop such warnings by installing the GNU linker.
! </p>
! <p>It would be nice to extend GAS to produce the gp tables, but they are
  optional, and there should not be a warning about their absence.
! </p>
! <p>The libstdc++ atomic locking routines for MIPS targets requires MIPS II
  and later.  A patch went in just after the GCC 3.3 release to
! make &lsquo;<samp>mips*-*-*</samp>&rsquo; use the generic implementation instead.  You can also
! configure for &lsquo;<samp>mipsel-elf</samp>&rsquo; as a workaround.  The
! &lsquo;<samp>mips*-*-linux*</samp>&rsquo; target continues to use the MIPS II routines.  More
  work on this is expected in future releases.
+ </p>
  
! <p>The built-in <code>__sync_*</code> functions are available on MIPS II and
! later systems and others that support the &lsquo;<samp>ll</samp>&rsquo;, &lsquo;<samp>sc</samp>&rsquo; and
! &lsquo;<samp>sync</samp>&rsquo; instructions.  This can be overridden by passing
! <samp>--with-llsc</samp> or <samp>--without-llsc</samp> when configuring GCC.
  Since the Linux kernel emulates these instructions if they are
! missing, the default for &lsquo;<samp>mips*-*-linux*</samp>&rsquo; targets is
! <samp>--with-llsc</samp>.  The <samp>--with-llsc</samp> and
! <samp>--without-llsc</samp> configure options may be overridden at compile
! time by passing the <samp>-mllsc</samp> or <samp>-mno-llsc</samp> options to
  the compiler.
! </p>
! <p>MIPS systems check for division by zero (unless
! <samp>-mno-check-zero-division</samp> is passed to the compiler) by
  generating either a conditional trap or a break instruction.  Using
  trap results in smaller code, but is only supported on MIPS II and
  later.  Also, some versions of the Linux kernel have a bug that
  prevents trap from generating the proper signal (<code>SIGFPE</code>).  To enable
! the use of break, use the <samp>--with-divide=breaks</samp>
! <code>configure</code> option when configuring GCC.  The default is to
  use traps on systems that support them.
! </p>
! <p>The assembler from GNU binutils 2.17 and earlier has a bug in the way
  it sorts relocations for REL targets (o32, o64, EABI).  This can cause
  bad code to be generated for simple C++ programs.  Also the linker
  from GNU binutils versions prior to 2.17 has a bug which causes the
! runtime linker stubs in very large programs, like <samp>libgcj.so</samp>, to
  be incorrectly generated.  GNU Binutils 2.18 and later (and snapshots
  made after Nov. 9, 2006) should be free from both of these problems.
! </p>
! <hr />
! <a name="mips_002dsgi_002dirix5"></a><a name="mips_002dsgi_002dirix5-1"></a>
! <h3 class="heading">mips-sgi-irix5</h3>
  <p>Support for IRIX 5 has been removed in GCC 4.6.
! </p>
! <hr />
! <a name="mips_002dsgi_002dirix6"></a><a name="mips_002dsgi_002dirix6-1"></a>
! <h3 class="heading">mips-sgi-irix6</h3>
  <p>Support for IRIX 6.5 has been removed in GCC 4.8.  Support for IRIX 6
  releases before 6.5 has been removed in GCC 4.6, as well as support for
  the O32 ABI.
! </p>
! <hr />
! <a name="moxie_002dx_002delf"></a><a name="moxie_002d_002a_002delf"></a>
! <h3 class="heading">moxie-*-elf</h3>
  <p>The moxie processor.
! </p>
! <hr />
! <a name="msp430_002dx_002delf"></a><a name="msp430_002d_002a_002delf"></a>
! <h3 class="heading">msp430-*-elf</h3>
! <p>TI MSP430 processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="nds32le_002dx_002delf"></a><a name="nds32le_002d_002a_002delf"></a>
! <h3 class="heading">nds32le-*-elf</h3>
  <p>Andes NDS32 target in little endian mode.
! </p>
! <hr />
! <a name="nds32be_002dx_002delf"></a><a name="nds32be_002d_002a_002delf"></a>
! <h3 class="heading">nds32be-*-elf</h3>
  <p>Andes NDS32 target in big endian mode.
! </p>
! <hr />
! <a name="nvptx_002dx_002dnone"></a><a name="nvptx_002d_002a_002dnone"></a>
! <h3 class="heading">nvptx-*-none</h3>
  <p>Nvidia PTX target.
! </p>
! <p>Instead of GNU binutils, you will need to install
! <a href="https://github.com/MentorEmbedded/nvptx-tools/">nvptx-tools</a>.
  Tell GCC where to find it:
! <samp>--with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin</samp>.
! </p>
! <p>A nvptx port of newlib is available at
! <a href="https://github.com/MentorEmbedded/nvptx-newlib/">nvptx-newlib</a>.
  It can be automatically built together with GCC.  For this, add a
! symbolic link to nvptx-newlib&rsquo;s <samp>newlib</samp> directory to the
  directory containing the GCC sources.
! </p>
! <p>Use the <samp>--disable-sjlj-exceptions</samp> and
! <samp>--enable-newlib-io-long-long</samp> options when configuring.
! </p>
! <hr />
! <a name="powerpc_002dx_002dx"></a><a name="powerpc_002d_002a_002d_002a"></a>
! <h3 class="heading">powerpc-*-*</h3>
! <p>You can specify a default version for the <samp>-mcpu=<var>cpu_type</var></samp>
! switch by using the configure option <samp>--with-cpu-<var>cpu_type</var></samp>.
! </p>
! <p>You will need
  <a href="ftp://ftp.kernel.org/pub/linux/devel/binutils">binutils 2.15</a>
  or newer for a working GCC.
! </p>
! <hr />
! <a name="powerpc_002dx_002ddarwin"></a><a name="powerpc_002d_002a_002ddarwin_002a"></a>
! <h3 class="heading">powerpc-*-darwin*</h3>
  <p>PowerPC running Darwin (Mac OS X kernel).
! </p>
! <p>Pre-installed versions of Mac OS X may not include any developer tools,
  meaning that you will not be able to build GCC from source.  Tool
  binaries are available at
  <a href="http://opensource.apple.com/">http://opensource.apple.com/</a>.
! </p>
! <p>This version of GCC requires at least cctools-590.36.  The
  cctools-590.36 package referenced from
  <a href="http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html">http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html</a> will not work
  on systems older than 10.3.9 (aka darwin7.9.0).
! </p>
! <hr />
! <a name="powerpc_002dx_002delf"></a><a name="powerpc_002d_002a_002delf"></a>
! <h3 class="heading">powerpc-*-elf</h3>
  <p>PowerPC system in big endian mode, running System V.4.
! </p>
! <hr />
! <a name="powerpc_002dx_002dlinux_002dgnu"></a><a name="powerpc_002a_002d_002a_002dlinux_002dgnu_002a"></a>
! <h3 class="heading">powerpc*-*-linux-gnu*</h3>
  <p>PowerPC system in big endian mode running Linux.
! </p>
! <hr />
! <a name="powerpc_002dx_002dnetbsd"></a><a name="powerpc_002d_002a_002dnetbsd_002a"></a>
! <h3 class="heading">powerpc-*-netbsd*</h3>
  <p>PowerPC system in big endian mode running NetBSD.
! </p>
! <hr />
! <a name="powerpc_002dx_002deabisim"></a><a name="powerpc_002d_002a_002deabisim"></a>
! <h3 class="heading">powerpc-*-eabisim</h3>
  <p>Embedded PowerPC system in big endian mode for use in running under the
  PSIM simulator.
! </p>
! <hr />
! <a name="powerpc_002dx_002deabi"></a><a name="powerpc_002d_002a_002deabi"></a>
! <h3 class="heading">powerpc-*-eabi</h3>
  <p>Embedded PowerPC system in big endian mode.
! </p>
! <hr />
! <a name="powerpcle_002dx_002delf"></a><a name="powerpcle_002d_002a_002delf"></a>
! <h3 class="heading">powerpcle-*-elf</h3>
  <p>PowerPC system in little endian mode, running System V.4.
! </p>
! <hr />
! <a name="powerpcle_002dx_002deabisim"></a><a name="powerpcle_002d_002a_002deabisim"></a>
! <h3 class="heading">powerpcle-*-eabisim</h3>
  <p>Embedded PowerPC system in little endian mode for use in running under
  the PSIM simulator.
! </p>
! <hr />
! <a name="powerpcle_002dx_002deabi"></a><a name="powerpcle_002d_002a_002deabi"></a>
! <h3 class="heading">powerpcle-*-eabi</h3>
  <p>Embedded PowerPC system in little endian mode.
! </p>
! <hr />
! <a name="rl78_002dx_002delf"></a><a name="rl78_002d_002a_002delf"></a>
! <h3 class="heading">rl78-*-elf</h3>
! <p>The Renesas RL78 processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="rx_002dx_002delf"></a><a name="rx_002d_002a_002delf"></a>
! <h3 class="heading">rx-*-elf</h3>
  <p>The Renesas RX processor.  See
  <a href="http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&amp;fp=/products/mpumcu/rx_family/rx600_series">http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&amp;fp=/products/mpumcu/rx_family/rx600_series</a>
  for more information about this processor.
! </p>
! <hr />
! <a name="s390_002dx_002dlinux"></a><a name="s390_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">s390-*-linux*</h3>
  <p>S/390 system running GNU/Linux for S/390.
! </p>
! <hr />
! <a name="s390x_002dx_002dlinux"></a><a name="s390x_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">s390x-*-linux*</h3>
  <p>zSeries system (64-bit) running GNU/Linux for zSeries.
! </p>
! <hr />
! <a name="s390x_002dibm_002dtpf"></a><a name="s390x_002dibm_002dtpf_002a"></a>
! <h3 class="heading">s390x-ibm-tpf*</h3>
  <p>zSeries system (64-bit) running TPF.  This platform is
  supported as cross-compilation target only.
! </p>
! <hr />
! <a name="x_002dx_002dsolaris2"></a><a name="g_t_002a_002d_002a_002dsolaris2_002a"></a>
! <h3 class="heading">*-*-solaris2*</h3>
  <p>Support for Solaris 9 has been removed in GCC 5.  Support for Solaris
  8 has been removed in GCC 4.8.  Support for Solaris 7 has been removed
  in GCC 4.6.
! </p>
! <p>Sun does not ship a C compiler with Solaris 2 before Solaris 10, though
  you can download the Sun Studio compilers for free.  In Solaris 10 and
! 11, GCC 3.4.3 is available as <code>/usr/sfw/bin/gcc</code>.  Solaris 11
  also provides GCC 4.5.2, 4.7.3, and 4.8.2 as
! <code>/usr/gcc/4.5/bin/gcc</code> or similar.  Alternatively,
  you can install a pre-built GCC to bootstrap and install GCC.  See the
  <a href="binaries.html">binaries page</a> for details.
! </p>
! <p>The Solaris 2 <code>/bin/sh</code> will often fail to configure
! &lsquo;<samp>libstdc++-v3</samp>&rsquo;, &lsquo;<samp>boehm-gc</samp>&rsquo; or &lsquo;<samp>libjava</samp>&rsquo;.  We therefore
  recommend using the following initial sequence of commands
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">% CONFIG_SHELL=/bin/ksh
+ % export CONFIG_SHELL
+ </pre></div>
  
! <p>and proceed as described in <a href="configure.html">the configure instructions</a>.
  In addition we strongly recommend specifying an absolute path to invoke
! <code><var>srcdir</var>/configure</code>.
! </p>
! <p>Solaris 10 comes with a number of optional OS packages.  Some of these
  are needed to use GCC fully, namely <code>SUNWarc</code>,
  <code>SUNWbtool</code>, <code>SUNWesu</code>, <code>SUNWhea</code>, <code>SUNWlibm</code>,
  <code>SUNWsprot</code>, and <code>SUNWtoo</code>.  If you did not install all
  optional packages when installing Solaris 10, you will need to verify that
! the packages that GCC needs are installed.
  To check whether an optional package is installed, use
! the <code>pkginfo</code> command.  To add an optional package, use the
! <code>pkgadd</code> command.  For further details, see the Solaris 10
  documentation.
! </p>
! <p>Starting with Solaris 11, the package management has changed, so you
  need to check for <code>system/header</code>, <code>system/linker</code>, and
  <code>developer/assembler</code> packages.  Checking for and installing
! packages is done with the <code>pkg</code> command now.
! </p>
! <p>Trying to use the linker and other tools in
! <samp>/usr/ucb</samp> to install GCC has been observed to cause trouble.
  For example, the linker may hang indefinitely.  The fix is to remove
! <samp>/usr/ucb</samp> from your <code>PATH</code>.
! </p>
! <p>The build process works more smoothly with the legacy Sun tools so, if you
! have <samp>/usr/xpg4/bin</samp> in your <code>PATH</code>, we recommend that you place
! <samp>/usr/bin</samp> before <samp>/usr/xpg4/bin</samp> for the duration of the build.
! </p>
! <p>We recommend the use of the Solaris assembler or the GNU assembler, in
! conjunction with the Solaris linker.  The GNU <code>as</code>
  versions included in Solaris 10, from GNU binutils 2.15 (in
! <samp>/usr/sfw/bin/gas</samp>), and Solaris 11,
! from GNU binutils 2.19 or newer (also in <samp>/usr/bin/gas</samp> and
! <samp>/usr/gnu/bin/as</samp>), are known to work.
  Current versions of GNU binutils (2.26)
  are known to work as well, with the caveat mentioned in
  <a href="#ix86-x-solaris210">i?86-*-solaris2.10</a> .  Note that your mileage may vary
  if you use a combination of the GNU tools and the Solaris tools: while the
! combination GNU <code>as</code> + Sun <code>ld</code> should reasonably work,
! the reverse combination Sun <code>as</code> + GNU <code>ld</code> may fail to
! build or cause memory corruption at runtime in some cases for C++ programs.
! GNU <code>ld</code> usually works as well, although the version included in
  Solaris 10 cannot be used due to several bugs.  Again, the current
  version (2.26) is known to work, but generally lacks platform specific
! features, so better stay with Solaris <code>ld</code>.  To use the LTO linker
! plugin (<samp>-fuse-linker-plugin</samp>) with GNU <code>ld</code>, GNU
! binutils <em>must</em> be configured with <samp>--enable-largefile</samp>.
! </p>
! <p>To enable symbol versioning in &lsquo;<samp>libstdc++</samp>&rsquo; with the Solaris linker,
! you need to have any version of GNU <code>c++filt</code>, which is part of
! GNU binutils.  &lsquo;<samp>libstdc++</samp>&rsquo; symbol versioning will be disabled if no
! appropriate version is found.  Solaris <code>c++filt</code> from the Solaris
  Studio compilers does <em>not</em> work.
! </p>
! <p>GNU <code>make</code> version 3.81 or later is required to build libjava
  with the Solaris linker.
! </p>
! <p>Sun bug 4927647 sometimes causes random spurious testsuite failures
! related to missing diagnostic output.  This bug doesn&rsquo;t affect GCC
! itself, rather it is a kernel bug triggered by the <code>expect</code>
  program which is used only by the GCC testsuite driver.  When the bug
! causes the <code>expect</code> program to miss anticipated output, extra
  testsuite failures appear.
! </p>
! <hr />
! <a name="sparc_002dx_002dx"></a><a name="sparc_002a_002d_002a_002d_002a"></a>
! <h3 class="heading">sparc*-*-*</h3>
  <p>This section contains general configuration information for all
  SPARC-based platforms.  In addition to reading this section, please
  read all other sections that match your target.
! </p>
! <p>Newer versions of the GNU Multiple Precision Library (GMP), the MPFR
  library and the MPC library are known to be miscompiled by earlier
  versions of GCC on these platforms.  We therefore recommend the use
  of the exact versions of these libraries listed as minimal versions
  in <a href="prerequisites.html">the prerequisites</a>.
! </p>
! <hr />
! <a name="sparc_002dsun_002dsolaris2"></a><a name="sparc_002dsun_002dsolaris2_002a"></a>
! <h3 class="heading">sparc-sun-solaris2*</h3>
  <p>When GCC is configured to use GNU binutils 2.14 or later, the binaries
! produced are smaller than the ones produced using Sun&rsquo;s native tools;
  this difference is quite significant for binaries containing debugging
  information.
! </p>
! <p>Starting with Solaris 7, the operating system is capable of executing
  64-bit SPARC V9 binaries.  GCC 3.1 and later properly supports
! this; the <samp>-m64</samp> option enables 64-bit code generation.
  However, if all you want is code tuned for the UltraSPARC CPU, you
! should try the <samp>-mtune=ultrasparc</samp> option instead, which produces
  code that, unlike full 64-bit code, can still run on non-UltraSPARC
  machines.
! </p>
! <p>When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library on a Solaris 7 or later system, the canonical
! target triplet must be specified as the <code>build</code> parameter on the
! configure line.  This target triplet can be obtained by invoking <code>./config.guess</code> in the toplevel source directory of GCC (and
  not that of GMP or MPFR or MPC).  For example on a Solaris 9 system:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">% ./configure --build=sparc-sun-solaris2.9 --prefix=xxx
+ </pre></div>
  
! <hr />
! <a name="sparc_002dsun_002dsolaris210"></a><a name="sparc_002dsun_002dsolaris2_002e10"></a>
! <h3 class="heading">sparc-sun-solaris2.10</h3>
  <p>There is a bug in older versions of the Sun assembler which breaks
  thread-local storage (TLS).  A typical error message is
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o:
+   symbol &lt;unknown&gt;: bad symbol type SECT: symbol type must be TLS
+ </pre></div>
  
! <p>This bug is fixed in Sun patch 118683-03 or later.
! </p>
! <hr />
! <a name="sparc_002dx_002dlinux"></a><a name="sparc_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">sparc-*-linux*</h3>
  
  <p>GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4
  or newer on this platform.  All earlier binutils and glibc
  releases mishandled unaligned relocations on <code>sparc-*-*</code> targets.
+ </p>
  
! <hr />
! <a name="sparc64_002dx_002dsolaris2"></a><a name="sparc64_002d_002a_002dsolaris2_002a"></a>
! <h3 class="heading">sparc64-*-solaris2*</h3>
  <p>When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library, the canonical target triplet must be specified
! as the <code>build</code> parameter on the configure line.  For example
  on a Solaris 9 system:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">% ./configure --build=sparc64-sun-solaris2.9 --prefix=xxx
+ </pre></div>
  
! <hr />
! <a name="sparcv9_002dx_002dsolaris2"></a><a name="sparcv9_002d_002a_002dsolaris2_002a"></a>
! <h3 class="heading">sparcv9-*-solaris2*</h3>
! <p>This is a synonym for &lsquo;<samp>sparc64-*-solaris2*</samp>&rsquo;.
! </p>
! <hr />
! <a name="c6x_002dx_002dx"></a><a name="c6x_002d_002a_002d_002a"></a>
! <h3 class="heading">c6x-*-*</h3>
  <p>The C6X family of processors. This port requires binutils-2.22 or newer.
! </p>
! <hr />
! <a name="tilegx_002d_002a_002dlinux"></a><a name="tilegx_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">tilegx-*-linux*</h3>
  <p>The TILE-Gx processor in little endian mode, running GNU/Linux.  This
  port requires binutils-2.22 or newer.
! </p>
! <hr />
! <a name="tilegxbe_002d_002a_002dlinux"></a><a name="tilegxbe_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">tilegxbe-*-linux*</h3>
  <p>The TILE-Gx processor in big endian mode, running GNU/Linux.  This
  port requires binutils-2.23 or newer.
! </p>
! <hr />
! <a name="tilepro_002d_002a_002dlinux"></a><a name="tilepro_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">tilepro-*-linux*</h3>
  <p>The TILEPro processor running GNU/Linux.  This port requires
  binutils-2.22 or newer.
! </p>
! <hr />
! <a name="visium_002dx_002delf"></a><a name="visium_002d_002a_002delf"></a>
! <h3 class="heading">visium-*-elf</h3>
! <p>CDS VISIUMcore processor.
  This configuration is intended for embedded systems.
! </p>
! <hr />
! <a name="x_002dx_002dvxworks"></a><a name="g_t_002a_002d_002a_002dvxworks_002a"></a>
! <h3 class="heading">*-*-vxworks*</h3>
  <p>Support for VxWorks is in flux.  At present GCC supports <em>only</em> the
! very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC.
! We welcome patches for other architectures supported by VxWorks 5.5.
  Support for VxWorks AE would also be welcome; we believe this is merely
  a matter of writing an appropriate &ldquo;configlette&rdquo; (see below).  We are
  not interested in supporting older, a.out or COFF-based, versions of
  VxWorks in GCC 3.
! </p>
! <p>VxWorks comes with an older version of GCC installed in
! <samp><var>$WIND_BASE</var>/host</samp>; we recommend you do not overwrite it.
! Choose an installation <var>prefix</var> entirely outside <var>$WIND_BASE</var>.
! Before running <code>configure</code>, create the directories <samp><var>prefix</var></samp>
! and <samp><var>prefix</var>/bin</samp>.  Link or copy the appropriate assembler,
! linker, etc. into <samp><var>prefix</var>/bin</samp>, and set your <var>PATH</var> to
! include that directory while running both <code>configure</code> and
! <code>make</code>.
! </p>
! <p>You must give <code>configure</code> the
! <samp>--with-headers=<var>$WIND_BASE</var>/target/h</samp> switch so that it can
  find the VxWorks system headers.  Since VxWorks is a cross compilation
! target only, you must also specify <samp>--target=<var>target</var></samp>.
! <code>configure</code> will attempt to create the directory
! <samp><var>prefix</var>/<var>target</var>/sys-include</samp> and copy files into it;
! make sure the user running <code>configure</code> has sufficient privilege
  to do so.
! </p>
! <p>GCC&rsquo;s exception handling runtime requires a special &ldquo;configlette&rdquo;
! module, <samp>contrib/gthr_supp_vxw_5x.c</samp>.  Follow the instructions in
  that file to add the module to your kernel build.  (Future versions of
  VxWorks will incorporate this module.)
! </p>
! <hr />
! <a name="x86_002d64_002dx_002dx"></a><a name="x86_005f64_002d_002a_002d_002a_002c-amd64_002d_002a_002d_002a"></a>
! <h3 class="heading">x86_64-*-*, amd64-*-*</h3>
  <p>GCC supports the x86-64 architecture implemented by the AMD64 processor
! (amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD.
  On GNU/Linux the default is a bi-arch compiler which is able to generate
! both 64-bit x86-64 and 32-bit x86 code (via the <samp>-m32</samp> switch).
! </p>
! <hr />
! <a name="x86_002d64_002dx_002dsolaris210"></a><a name="x86_005f64_002d_002a_002dsolaris2_002e1_005b0_002d9_005d_002a"></a>
! <h3 class="heading">x86_64-*-solaris2.1[0-9]*</h3>
  <p>GCC also supports the x86-64 architecture implemented by the AMD64
! processor (&lsquo;<samp>amd64-*-*</samp>&rsquo; is an alias for &lsquo;<samp>x86_64-*-*</samp>&rsquo;) on
  Solaris 10 or later.  Unlike other systems, without special options a
  bi-arch compiler is built which generates 32-bit code by default, but
! can generate 64-bit x86-64 code with the <samp>-m64</samp> switch.  Since
  GCC 4.7, there is also a configuration that defaults to 64-bit code, but
! can generate 32-bit code with <samp>-m32</samp>.  To configure and build
! this way, you have to provide all support libraries like <samp>libgmp</samp>
! as 64-bit code, configure with <samp>--target=x86_64-pc-solaris2.1x</samp>
! and &lsquo;<samp>CC=gcc -m64</samp>&rsquo;.
! </p>
! <hr />
! <a name="xtensa_002dx_002delf"></a><a name="xtensa_002a_002d_002a_002delf"></a>
! <h3 class="heading">xtensa*-*-elf</h3>
  <p>This target is intended for embedded Xtensa systems using the
! &lsquo;<samp>newlib</samp>&rsquo; C library.  It uses ELF but does not support shared
  objects.  Designed-defined instructions specified via the
  Tensilica Instruction Extension (TIE) language are only supported
  through inline assembly.
! </p>
! <p>The Xtensa configuration information must be specified prior to
! building GCC.  The <samp>include/xtensa-config.h</samp> header
  file contains the configuration information.  If you created your
  own Xtensa configuration with the Xtensa Processor Generator, the
  downloaded files include a customized copy of this header file,
  which you can use to replace the default header file.
! </p>
! <hr />
! <a name="xtensa_002dx_002dlinux"></a><a name="xtensa_002a_002d_002a_002dlinux_002a"></a>
! <h3 class="heading">xtensa*-*-linux*</h3>
  <p>This target is for Xtensa systems running GNU/Linux.  It supports ELF
  shared objects and the GNU C library (glibc).  It also generates
  position-independent code (PIC) regardless of whether the
! <samp>-fpic</samp> or <samp>-fPIC</samp> options are used.  In other
  respects, this target is the same as the
! <a href="#xtensa*-*-elf">&lsquo;<samp>xtensa*-*-elf</samp>&rsquo;</a> target.
! </p>
! <hr />
! <a name="windows"></a><a name="Microsoft-Windows"></a>
! <h3 class="heading">Microsoft Windows</h3>
  
+ <a name="Intel-16_002dbit-versions"></a>
+ <h4 class="subheading">Intel 16-bit versions</h4>
  <p>The 16-bit versions of Microsoft Windows, such as Windows 3.1, are not
  supported.
! </p>
! <p>However, the 32-bit port has limited support for Microsoft
  Windows 3.11 in the Win32s environment, as a target only.  See below.
! </p>
! <a name="Intel-32_002dbit-versions"></a>
! <h4 class="subheading">Intel 32-bit versions</h4>
  <p>The 32-bit versions of Windows, including Windows 95, Windows NT, Windows
  XP, and Windows Vista, are supported by several different target
  platforms.  These targets differ in which Windows subsystem they target
  and which C libraries are used.
+ </p>
+ <ul>
+ <li> Cygwin <a href="#x-x-cygwin">*-*-cygwin</a>: Cygwin provides a user-space
+ Linux API emulation layer in the Win32 subsystem.
+ </li><li> Interix <a href="#x-x-interix">*-*-interix</a>: The Interix subsystem
+ provides native support for POSIX.
+ </li><li> MinGW <a href="#x-x-mingw32">*-*-mingw32</a>: MinGW is a native GCC port for
+ the Win32 subsystem that provides a subset of POSIX.
+ </li><li> MKS i386-pc-mks: NuTCracker from MKS.  See
+ <a href="http://www.mkssoftware.com/">http://www.mkssoftware.com/</a> for more information.
+ </li></ul>
  
! <a name="Intel-64_002dbit-versions"></a>
! <h4 class="subheading">Intel 64-bit versions</h4>
  <p>GCC contains support for x86-64 using the mingw-w64
! runtime library, available from <a href="http://mingw-w64.sourceforge.net/">http://mingw-w64.sourceforge.net/</a>.
  This library should be used with the target triple x86_64-pc-mingw32.
! </p>
! <p>Presently Windows for Itanium is not supported.
! </p>
! <a name="Windows-CE"></a>
! <h4 class="subheading">Windows CE</h4>
  <p>Windows CE is supported as a target only on Hitachi
  SuperH (sh-wince-pe), and MIPS (mips-wince-pe).
! </p>
! <a name="Other-Windows-Platforms"></a>
! <h4 class="subheading">Other Windows Platforms</h4>
  <p>GCC no longer supports Windows NT on the Alpha or PowerPC.
! </p>
! <p>GCC no longer supports the Windows POSIX subsystem.  However, it does
  support the Interix subsystem.  See above.
! </p>
! <p>Old target names including *-*-winnt and *-*-windowsnt are no longer used.
! </p>
! <p>PW32 (i386-pc-pw32) support was never completed, and the project seems to
  be inactive.  See <a href="http://pw32.sourceforge.net/">http://pw32.sourceforge.net/</a> for more information.
! </p>
! <p>UWIN support has been removed due to a lack of maintenance.
! </p>
! <hr />
! <a name="x_002dx_002dcygwin"></a><a name="g_t_002a_002d_002a_002dcygwin"></a>
! <h3 class="heading">*-*-cygwin</h3>
  <p>Ports of GCC are included with the
  <a href="http://www.cygwin.com/">Cygwin environment</a>.
! </p>
! <p>GCC will build under Cygwin without modification; it does not build
! with Microsoft&rsquo;s C++ compiler and there are no plans to make it do so.
! </p>
! <p>The Cygwin native compiler can be configured to target any 32-bit x86
  cpu architecture desired; the default is i686-pc-cygwin.  It should be
  used with as up-to-date a version of binutils as possible; use either
  the latest official GNU binutils release in the Cygwin distribution,
  or version 2.20 or above if building your own.
! </p>
! <hr />
! <a name="x_002dx_002dinterix"></a><a name="g_t_002a_002d_002a_002dinterix"></a>
! <h3 class="heading">*-*-interix</h3>
  <p>The Interix target is used by OpenNT, Interix, Services For UNIX (SFU),
  and Subsystem for UNIX-based Applications (SUA).  Applications compiled
  with this target run in the Interix subsystem, which is separate from
  the Win32 subsystem.  This target was last known to work in GCC 3.3.
! </p>
! <hr />
! <a name="x_002dx_002dmingw32"></a><a name="g_t_002a_002d_002a_002dmingw32"></a>
! <h3 class="heading">*-*-mingw32</h3>
! <p>GCC will build with and support only MinGW runtime 3.12 and later.
  Earlier versions of headers are incompatible with the new default semantics
  of <code>extern inline</code> in <code>-std=c99</code> and <code>-std=gnu99</code> modes.
! </p>
! <hr />
! <a name="older"></a><a name="Older-systems"></a>
! <h3 class="heading">Older systems</h3>
  <p>GCC contains support files for many older (1980s and early
  1990s) Unix variants.  For the most part, support for these systems
  has not been deliberately removed, but it has not been maintained for
  several years and may suffer from bitrot.
! </p>
! <p>Starting with GCC 3.1, each release has a list of &ldquo;obsoleted&rdquo; systems.
  Support for these systems is still present in that release, but
! <code>configure</code> will fail unless the <samp>--enable-obsolete</samp>
  option is given.  Unless a maintainer steps forward, support for these
  systems will be removed from the next release of GCC.
! </p>
! <p>Support for old systems as hosts for GCC can cause problems if the
  workarounds for compiler, library and operating system bugs affect the
  cleanliness or maintainability of the rest of GCC.  In some cases, to
  bring GCC up on such a system, if still possible with current GCC, may
  require first installing an old version of GCC which did work on that
  system, and using it to compile a more recent GCC, to avoid bugs in the
  vendor compiler.  Old releases of GCC 1 and GCC 2 are available in the
! <samp>old-releases</samp> directory on the <a href="../mirrors.html">GCC mirror
! sites</a>.  Header bugs may generally be avoided using
! <code>fixincludes</code>, but bugs or deficiencies in libraries and the
  operating system may still cause problems.
! </p>
! <p>Support for older systems as targets for cross-compilation is less
  problematic than support for them as hosts for GCC; if an enthusiast
  wishes to make such a target work again (including resurrecting any of
  the targets that never worked with GCC 2, starting from the last
*************** version before they were removed), patch
*** 1505,1535 ****
  <a href="../contribute.html">following the usual requirements</a> would be
  likely to be accepted, since they should not affect the support for more
  modern targets.
! 
!    <p>For some systems, old versions of GNU binutils may also be useful,
! and are available from <samp><span class="file">pub/binutils/old-releases</span></samp> on
  <a href="http://sourceware.org/mirrors.html">sourceware.org mirror sites</a>.
! 
!    <p>Some of the information on specific systems above relates to
  such older systems, but much of the information
  about GCC on such systems (which may no longer be applicable to
  current GCC) is to be found in the GCC texinfo manual.
! 
!    <p><hr /><a name="elf"></a>
! 
! <h3 class="heading"><a name="TOC84"></a>all ELF targets (SVR4, Solaris 2, etc.)</h3>
! 
  <p>C++ support is significantly better on ELF targets if you use the
  <a href="./configure.html#with-gnu-ld">GNU linker</a>; duplicate copies of
  inlines, vtables and template instantiations will be discarded
  automatically.
  
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 1502,1535 ----
  <a href="../contribute.html">following the usual requirements</a> would be
  likely to be accepted, since they should not affect the support for more
  modern targets.
! </p>
! <p>For some systems, old versions of GNU binutils may also be useful,
! and are available from <samp>pub/binutils/old-releases</samp> on
  <a href="http://sourceware.org/mirrors.html">sourceware.org mirror sites</a>.
! </p>
! <p>Some of the information on specific systems above relates to
  such older systems, but much of the information
  about GCC on such systems (which may no longer be applicable to
  current GCC) is to be found in the GCC texinfo manual.
! </p>
! <hr />
! <a name="elf"></a><a name="all-ELF-targets-_0028SVR4_002c-Solaris-2_002c-etc_002e_0029"></a>
! <h3 class="heading">all ELF targets (SVR4, Solaris 2, etc.)</h3>
  <p>C++ support is significantly better on ELF targets if you use the
  <a href="./configure.html#with-gnu-ld">GNU linker</a>; duplicate copies of
  inlines, vtables and template instantiations will be discarded
  automatically.
+ </p>
  
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
  
  
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/INSTALL/test.html gcc-6.5.0/INSTALL/test.html
*** gcc-6.4.0/INSTALL/test.html	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/INSTALL/test.html	Fri Oct 26 09:56:38 2018
***************
*** 1,234 ****
! <html lang="en">
! <head>
! <title>Installing GCC: Testing</title>
! <meta http-equiv="Content-Type" content="text/html">
! <meta name="description" content="Installing GCC: Testing">
! <meta name="generator" content="makeinfo 4.13">
! <link title="Top" rel="top" href="#Top">
! <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
! <!--
! Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
!    Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
!      A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
!      You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development.-->
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!   pre.smallexample { font-size:smaller }
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!   span.roman { font-family:serif; font-weight:normal; } 
!   span.sansserif { font-family:sans-serif; font-weight:normal; } 
! --></style>
  </head>
! <body>
! <h1 class="settitle">Installing GCC: Testing</h1>
! <a name="index-Testing-1"></a><a name="index-Installing-GCC_003a-Testing-2"></a><a name="index-Testsuite-3"></a>
! Before you install GCC, we encourage you to run the testsuites and to
  compare your results with results from a similar configuration that have
  been submitted to the
! <a href="http://gcc.gnu.org/ml/gcc-testresults/">gcc-testresults mailing list</a>. 
  Some of these archived results are linked from the build status lists
  at <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>, although not everyone who
! reports a successful build runs the testsuites and submits the results. 
  This step is optional and may require you to download additional software,
  but it can give you confidence in your new GCC installation or point out
  problems before you install and start using your new GCC.
! 
!    <p>First, you must have <a href="download.html">downloaded the testsuites</a>. 
  These are part of the full distribution, but if you downloaded the
  &ldquo;core&rdquo; compiler plus any front ends, you must download the testsuites
  separately.
! 
!    <p>Second, you must have the testing tools installed.  This includes
  <a href="http://www.gnu.org/software/dejagnu/">DejaGnu</a>, Tcl, and Expect;
  the DejaGnu site has links to these.
! 
!    <p>If the directories where <samp><span class="command">runtest</span></samp> and <samp><span class="command">expect</span></samp> were
! installed are not in the <samp><span class="env">PATH</span></samp>, you may need to set the following
  environment variables appropriately, as in the following example (which
! assumes that DejaGnu has been installed under <samp><span class="file">/usr/local</span></samp>):
  
! <pre class="smallexample">     TCL_LIBRARY = /usr/local/share/tcl8.0
!      DEJAGNULIBS = /usr/local/share/dejagnu
! </pre>
!    <p>(On systems such as Cygwin, these paths are required to be actual
  paths, not mounts or links; presumably this is due to some lack of
  portability in the DejaGnu code.)
  
!    <p>Finally, you can run the testsuite (which may take a long time):
! <pre class="smallexample">     cd <var>objdir</var>; make -k check
! </pre>
!    <p>This will test various components of GCC, such as compiler
  front ends and runtime libraries.  While running the testsuite, DejaGnu
  might emit some harmless messages resembling
! &lsquo;<samp><span class="samp">WARNING: Couldn't find the global config file.</span></samp>&rsquo; or
! &lsquo;<samp><span class="samp">WARNING: Couldn't find tool init file</span></samp>&rsquo; that can be ignored.
! 
!    <p>If you are testing a cross-compiler, you may want to run the testsuite
  on a simulator as described at <a href="http://gcc.gnu.org/simtest-howto.html">http://gcc.gnu.org/simtest-howto.html</a>.
! 
! <h3 class="section"><a name="TOC0"></a>How can you run the testsuite on selected tests?</h3>
  
  <p>In order to run sets of tests selectively, there are targets
! &lsquo;<samp><span class="samp">make check-gcc</span></samp>&rsquo; and language specific &lsquo;<samp><span class="samp">make check-c</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">make check-c++</span></samp>&rsquo;, &lsquo;<samp><span class="samp">make check-fortran</span></samp>&rsquo;, &lsquo;<samp><span class="samp">make check-java</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">make check-ada</span></samp>&rsquo;, &lsquo;<samp><span class="samp">make check-objc</span></samp>&rsquo;, &lsquo;<samp><span class="samp">make check-obj-c++</span></samp>&rsquo;,
! &lsquo;<samp><span class="samp">make check-lto</span></samp>&rsquo;
! in the <samp><span class="file">gcc</span></samp> subdirectory of the object directory.  You can also
! just run &lsquo;<samp><span class="samp">make check</span></samp>&rsquo; in a subdirectory of the object directory.
  
!    <p>A more selective way to just run all <samp><span class="command">gcc</span></samp> execute tests in the
  testsuite is to use
  
! <pre class="smallexample">     make check-gcc RUNTESTFLAGS="execute.exp <var>other-options</var>"
! </pre>
!    <p>Likewise, in order to run only the <samp><span class="command">g++</span></samp> &ldquo;old-deja&rdquo; tests in
! the testsuite with filenames matching &lsquo;<samp><span class="samp">9805*</span></samp>&rsquo;, you would use
! 
! <pre class="smallexample">     make check-g++ RUNTESTFLAGS="old-deja.exp=9805* <var>other-options</var>"
! </pre>
!    <p>The <samp><span class="file">*.exp</span></samp> files are located in the testsuite directories of the GCC
! source, the most important ones being <samp><span class="file">compile.exp</span></samp>,
! <samp><span class="file">execute.exp</span></samp>, <samp><span class="file">dg.exp</span></samp> and <samp><span class="file">old-deja.exp</span></samp>. 
! To get a list of the possible <samp><span class="file">*.exp</span></samp> files, pipe the
! output of &lsquo;<samp><span class="samp">make check</span></samp>&rsquo; into a file and look at the
! &lsquo;<samp><span class="samp">Running ...  .exp</span></samp>&rsquo; lines.
  
! <h3 class="section"><a name="TOC1"></a>Passing options and running multiple testsuites</h3>
  
  <p>You can pass multiple options to the testsuite using the
! &lsquo;<samp><span class="samp">--target_board</span></samp>&rsquo; option of DejaGNU, either passed as part of
! &lsquo;<samp><span class="samp">RUNTESTFLAGS</span></samp>&rsquo;, or directly to <samp><span class="command">runtest</span></samp> if you prefer to
  work outside the makefiles.  For example,
  
! <pre class="smallexample">     make check-g++ RUNTESTFLAGS="--target_board=unix/-O3/-fmerge-constants"
! </pre>
!    <p>will run the standard <samp><span class="command">g++</span></samp> testsuites (&ldquo;unix&rdquo; is the target name
  for a standard native testsuite situation), passing
! &lsquo;<samp><span class="samp">-O3 -fmerge-constants</span></samp>&rsquo; to the compiler on every test, i.e.,
  slashes separate options.
! 
!    <p>You can run the testsuites multiple times using combinations of options
  with a syntax similar to the brace expansion of popular shells:
  
! <pre class="smallexample">     ..."--target_board=arm-sim\{-mhard-float,-msoft-float\}\{-O1,-O2,-O3,\}"
! </pre>
!    <p>(Note the empty option caused by the trailing comma in the final group.) 
! The following will run each testsuite eight times using the &lsquo;<samp><span class="samp">arm-sim</span></samp>&rsquo;
  target, as if you had specified all possible combinations yourself:
  
! <pre class="smallexample">     --target_board='arm-sim/-mhard-float/-O1 \
!                      arm-sim/-mhard-float/-O2 \
!                      arm-sim/-mhard-float/-O3 \
!                      arm-sim/-mhard-float \
!                      arm-sim/-msoft-float/-O1 \
!                      arm-sim/-msoft-float/-O2 \
!                      arm-sim/-msoft-float/-O3 \
!                      arm-sim/-msoft-float'
! </pre>
!    <p>They can be combined as many times as you wish, in arbitrary ways.  This
  list:
  
! <pre class="smallexample">     ..."--target_board=unix/-Wextra\{-O3,-fno-strength\}\{-fomit-frame,\}"
! </pre>
!    <p>will generate four combinations, all involving &lsquo;<samp><span class="samp">-Wextra</span></samp>&rsquo;.
! 
!    <p>The disadvantage to this method is that the testsuites are run in serial,
  which is a waste on multiprocessor systems.  For users with GNU Make and
  a shell which performs brace expansion, you can run the testsuites in
! parallel by having the shell perform the combinations and <samp><span class="command">make</span></samp>
! do the parallel runs.  Instead of using &lsquo;<samp><span class="samp">--target_board</span></samp>&rsquo;, use a
  special makefile target:
  
! <pre class="smallexample">     make -j<var>N</var> check-<var>testsuite</var>//<var>test-target</var>/<var>option1</var>/<var>option2</var>/...
! </pre>
!    <p>For example,
  
! <pre class="smallexample">     make -j3 check-gcc//sh-hms-sim/{-m1,-m2,-m3,-m3e,-m4}/{,-nofpu}
! </pre>
!    <p>will run three concurrent &ldquo;make-gcc&rdquo; testsuites, eventually testing all
  ten combinations as described above.  Note that this is currently only
! supported in the <samp><span class="file">gcc</span></samp> subdirectory.  (To see how this works, try
! typing <samp><span class="command">echo</span></samp> before the example given here.)
  
! <h3 class="section"><a name="TOC2"></a>Additional testing for Java Class Libraries</h3>
  
! <p>The Java runtime tests can be executed via &lsquo;<samp><span class="samp">make check</span></samp>&rsquo;
! in the <samp><var>target</var><span class="file">/libjava/testsuite</span></samp> directory in
  the build tree.
! 
!    <p>The <a href="http://sourceware.org/mauve/">Mauve Project</a> provides
  a suite of tests for the Java Class Libraries.  This suite can be run
  as part of libgcj testing by placing the Mauve tree within the libjava
! testsuite at <samp><span class="file">libjava/testsuite/libjava.mauve/mauve</span></samp>, or by
! specifying the location of that tree when invoking &lsquo;<samp><span class="samp">make</span></samp>&rsquo;, as in
! &lsquo;<samp><span class="samp">make MAUVEDIR=~/mauve check</span></samp>&rsquo;.
! 
! <h3 class="section"><a name="TOC3"></a>How to interpret test results</h3>
  
! <p>The result of running the testsuite are various <samp><span class="file">*.sum</span></samp> and <samp><span class="file">*.log</span></samp>
! files in the testsuite subdirectories.  The <samp><span class="file">*.log</span></samp> files contain a
  detailed log of the compiler invocations and the corresponding
! results, the <samp><span class="file">*.sum</span></samp> files summarize the results.  These summaries
  contain status codes for all tests:
  
!      <ul>
! <li>PASS: the test passed as expected
! <li>XPASS: the test unexpectedly passed
! <li>FAIL: the test unexpectedly failed
! <li>XFAIL: the test failed as expected
! <li>UNSUPPORTED: the test is not supported on this platform
! <li>ERROR: the testsuite detected an error
! <li>WARNING: the testsuite detected a possible problem
! </ul>
! 
!    <p>It is normal for some tests to report unexpected failures.  At the
  current time the testing harness does not allow fine grained control
  over whether or not a test is expected to fail.  This problem should
  be fixed in future releases.
  
! <h3 class="section"><a name="TOC4"></a>Submitting test results</h3>
  
  <p>If you want to report the results to the GCC project, use the
! <samp><span class="file">contrib/test_summary</span></samp> shell script.  Start it in the <var>objdir</var> with
  
! <pre class="smallexample">     <var>srcdir</var>/contrib/test_summary -p your_commentary.txt \
!          -m gcc-testresults@gcc.gnu.org |sh
! </pre>
!    <p>This script uses the <samp><span class="command">Mail</span></samp> program to send the results, so
! make sure it is in your <samp><span class="env">PATH</span></samp>.  The file <samp><span class="file">your_commentary.txt</span></samp> is
  prepended to the testsuite summary and should contain any special
  remarks you have on your results or your build environment.  Please
  do not edit the testsuite result block or the subject line, as these
  messages may be automatically processed.
! 
!    <p><hr />
  <p><a href="./index.html">Return to the GCC Installation page</a>
  
- <!-- ***Final install*********************************************************** -->
- <!-- ***Binaries**************************************************************** -->
- <!-- ***Specific**************************************************************** -->
- <!-- ***Old documentation****************************************************** -->
- <!-- ***GFDL******************************************************************** -->
- <!-- *************************************************************************** -->
- <!-- Part 6 The End of the Document -->
- </body></html>
  
--- 1,315 ----
! <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
! <html>
! <!-- Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
! Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3 or
  any later version published by the Free Software Foundation; with no
  Invariant Sections, the Front-Cover texts being (a) (see below), and
  with the Back-Cover Texts being (b) (see below).  A copy of the
! license is included in the section entitled "GNU
! Free Documentation License".
  
  (a) The FSF's Front-Cover Text is:
  
! A GNU Manual
  
  (b) The FSF's Back-Cover Text is:
  
! You have freedom to copy and modify this GNU Manual, like GNU
       software.  Copies published by the Free Software Foundation raise
!      funds for GNU development. -->
! <!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
! <head>
! <title>Installing GCC</title>
! 
! <meta name="description" content="Installing GCC">
! <meta name="keywords" content="Installing GCC">
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! 
! 
  </head>
! 
! <body lang="en">
! <h1 class="settitle" align="center">Installing GCC</h1>
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! 
! <a name="index-Testing"></a>
! <a name="index-Installing-GCC_003a-Testing"></a>
! <a name="index-Testsuite"></a>
! 
! <p>Before you install GCC, we encourage you to run the testsuites and to
  compare your results with results from a similar configuration that have
  been submitted to the
! <a href="http://gcc.gnu.org/ml/gcc-testresults/">gcc-testresults mailing list</a>.
  Some of these archived results are linked from the build status lists
  at <a href="http://gcc.gnu.org/buildstat.html">http://gcc.gnu.org/buildstat.html</a>, although not everyone who
! reports a successful build runs the testsuites and submits the results.
  This step is optional and may require you to download additional software,
  but it can give you confidence in your new GCC installation or point out
  problems before you install and start using your new GCC.
! </p>
! <p>First, you must have <a href="download.html">downloaded the testsuites</a>.
  These are part of the full distribution, but if you downloaded the
  &ldquo;core&rdquo; compiler plus any front ends, you must download the testsuites
  separately.
! </p>
! <p>Second, you must have the testing tools installed.  This includes
  <a href="http://www.gnu.org/software/dejagnu/">DejaGnu</a>, Tcl, and Expect;
  the DejaGnu site has links to these.
! </p>
! <p>If the directories where <code>runtest</code> and <code>expect</code> were
! installed are not in the <code>PATH</code>, you may need to set the following
  environment variables appropriately, as in the following example (which
! assumes that DejaGnu has been installed under <samp>/usr/local</samp>):
! </p>
! <div class="smallexample">
! <pre class="smallexample">TCL_LIBRARY = /usr/local/share/tcl8.0
! DEJAGNULIBS = /usr/local/share/dejagnu
! </pre></div>
  
! <p>(On systems such as Cygwin, these paths are required to be actual
  paths, not mounts or links; presumably this is due to some lack of
  portability in the DejaGnu code.)
+ </p>
  
! <p>Finally, you can run the testsuite (which may take a long time):
! </p><div class="smallexample">
! <pre class="smallexample">cd <var>objdir</var>; make -k check
! </pre></div>
! 
! <p>This will test various components of GCC, such as compiler
  front ends and runtime libraries.  While running the testsuite, DejaGnu
  might emit some harmless messages resembling
! &lsquo;<samp>WARNING: Couldn't find the global config file.</samp>&rsquo; or
! &lsquo;<samp>WARNING: Couldn't find tool init file</samp>&rsquo; that can be ignored.
! </p>
! <p>If you are testing a cross-compiler, you may want to run the testsuite
  on a simulator as described at <a href="http://gcc.gnu.org/simtest-howto.html">http://gcc.gnu.org/simtest-howto.html</a>.
! </p>
! <a name="How-can-you-run-the-testsuite-on-selected-tests_003f"></a>
! <h3 class="section">How can you run the testsuite on selected tests?</h3>
  
  <p>In order to run sets of tests selectively, there are targets
! &lsquo;<samp>make check-gcc</samp>&rsquo; and language specific &lsquo;<samp>make check-c</samp>&rsquo;,
! &lsquo;<samp>make check-c++</samp>&rsquo;, &lsquo;<samp>make check-fortran</samp>&rsquo;, &lsquo;<samp>make check-java</samp>&rsquo;,
! &lsquo;<samp>make check-ada</samp>&rsquo;, &lsquo;<samp>make check-objc</samp>&rsquo;, &lsquo;<samp>make check-obj-c++</samp>&rsquo;,
! &lsquo;<samp>make check-lto</samp>&rsquo;
! in the <samp>gcc</samp> subdirectory of the object directory.  You can also
! just run &lsquo;<samp>make check</samp>&rsquo; in a subdirectory of the object directory.
! </p>
  
! <p>A more selective way to just run all <code>gcc</code> execute tests in the
  testsuite is to use
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">make check-gcc RUNTESTFLAGS=&quot;execute.exp <var>other-options</var>&quot;
+ </pre></div>
  
! <p>Likewise, in order to run only the <code>g++</code> &ldquo;old-deja&rdquo; tests in
! the testsuite with filenames matching &lsquo;<samp>9805*</samp>&rsquo;, you would use
! </p>
! <div class="smallexample">
! <pre class="smallexample">make check-g++ RUNTESTFLAGS=&quot;old-deja.exp=9805* <var>other-options</var>&quot;
! </pre></div>
  
! <p>The <samp>*.exp</samp> files are located in the testsuite directories of the GCC
! source, the most important ones being <samp>compile.exp</samp>,
! <samp>execute.exp</samp>, <samp>dg.exp</samp> and <samp>old-deja.exp</samp>.
! To get a list of the possible <samp>*.exp</samp> files, pipe the
! output of &lsquo;<samp>make check</samp>&rsquo; into a file and look at the
! &lsquo;<samp>Running &hellip;  .exp</samp>&rsquo; lines.
! </p>
! <a name="Passing-options-and-running-multiple-testsuites"></a>
! <h3 class="section">Passing options and running multiple testsuites</h3>
  
  <p>You can pass multiple options to the testsuite using the
! &lsquo;<samp>--target_board</samp>&rsquo; option of DejaGNU, either passed as part of
! &lsquo;<samp>RUNTESTFLAGS</samp>&rsquo;, or directly to <code>runtest</code> if you prefer to
  work outside the makefiles.  For example,
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">make check-g++ RUNTESTFLAGS=&quot;--target_board=unix/-O3/-fmerge-constants&quot;
+ </pre></div>
  
! <p>will run the standard <code>g++</code> testsuites (&ldquo;unix&rdquo; is the target name
  for a standard native testsuite situation), passing
! &lsquo;<samp>-O3 -fmerge-constants</samp>&rsquo; to the compiler on every test, i.e.,
  slashes separate options.
! </p>
! <p>You can run the testsuites multiple times using combinations of options
  with a syntax similar to the brace expansion of popular shells:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">&hellip;&quot;--target_board=arm-sim\{-mhard-float,-msoft-float\}\{-O1,-O2,-O3,\}&quot;
+ </pre></div>
  
! <p>(Note the empty option caused by the trailing comma in the final group.)
! The following will run each testsuite eight times using the &lsquo;<samp>arm-sim</samp>&rsquo;
  target, as if you had specified all possible combinations yourself:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">--target_board='arm-sim/-mhard-float/-O1 \
+                 arm-sim/-mhard-float/-O2 \
+                 arm-sim/-mhard-float/-O3 \
+                 arm-sim/-mhard-float \
+                 arm-sim/-msoft-float/-O1 \
+                 arm-sim/-msoft-float/-O2 \
+                 arm-sim/-msoft-float/-O3 \
+                 arm-sim/-msoft-float'
+ </pre></div>
  
! <p>They can be combined as many times as you wish, in arbitrary ways.  This
  list:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">&hellip;&quot;--target_board=unix/-Wextra\{-O3,-fno-strength\}\{-fomit-frame,\}&quot;
+ </pre></div>
  
! <p>will generate four combinations, all involving &lsquo;<samp>-Wextra</samp>&rsquo;.
! </p>
! <p>The disadvantage to this method is that the testsuites are run in serial,
  which is a waste on multiprocessor systems.  For users with GNU Make and
  a shell which performs brace expansion, you can run the testsuites in
! parallel by having the shell perform the combinations and <code>make</code>
! do the parallel runs.  Instead of using &lsquo;<samp>--target_board</samp>&rsquo;, use a
  special makefile target:
+ </p>
+ <div class="smallexample">
+ <pre class="smallexample">make -j<var>N</var> check-<var>testsuite</var>//<var>test-target</var>/<var>option1</var>/<var>option2</var>/&hellip;
+ </pre></div>
  
! <p>For example,
! </p>
! <div class="smallexample">
! <pre class="smallexample">make -j3 check-gcc//sh-hms-sim/{-m1,-m2,-m3,-m3e,-m4}/{,-nofpu}
! </pre></div>
  
! <p>will run three concurrent &ldquo;make-gcc&rdquo; testsuites, eventually testing all
  ten combinations as described above.  Note that this is currently only
! supported in the <samp>gcc</samp> subdirectory.  (To see how this works, try
! typing <code>echo</code> before the example given here.)
! </p>
  
! <a name="Additional-testing-for-Java-Class-Libraries"></a>
! <h3 class="section">Additional testing for Java Class Libraries</h3>
  
! <p>The Java runtime tests can be executed via &lsquo;<samp>make check</samp>&rsquo;
! in the <samp><var>target</var>/libjava/testsuite</samp> directory in
  the build tree.
! </p>
! <p>The <a href="http://sourceware.org/mauve/">Mauve Project</a> provides
  a suite of tests for the Java Class Libraries.  This suite can be run
  as part of libgcj testing by placing the Mauve tree within the libjava
! testsuite at <samp>libjava/testsuite/libjava.mauve/mauve</samp>, or by
! specifying the location of that tree when invoking &lsquo;<samp>make</samp>&rsquo;, as in
! &lsquo;<samp>make MAUVEDIR=~/mauve check</samp>&rsquo;.
! </p>
! <a name="How-to-interpret-test-results"></a>
! <h3 class="section">How to interpret test results</h3>
  
! <p>The result of running the testsuite are various <samp>*.sum</samp> and <samp>*.log</samp>
! files in the testsuite subdirectories.  The <samp>*.log</samp> files contain a
  detailed log of the compiler invocations and the corresponding
! results, the <samp>*.sum</samp> files summarize the results.  These summaries
  contain status codes for all tests:
+ </p>
+ <ul>
+ <li> PASS: the test passed as expected
+ </li><li> XPASS: the test unexpectedly passed
+ </li><li> FAIL: the test unexpectedly failed
+ </li><li> XFAIL: the test failed as expected
+ </li><li> UNSUPPORTED: the test is not supported on this platform
+ </li><li> ERROR: the testsuite detected an error
+ </li><li> WARNING: the testsuite detected a possible problem
+ </li></ul>
  
! <p>It is normal for some tests to report unexpected failures.  At the
  current time the testing harness does not allow fine grained control
  over whether or not a test is expected to fail.  This problem should
  be fixed in future releases.
+ </p>
  
! <a name="Submitting-test-results"></a>
! <h3 class="section">Submitting test results</h3>
  
  <p>If you want to report the results to the GCC project, use the
! <samp>contrib/test_summary</samp> shell script.  Start it in the <var>objdir</var> with
! </p>
! <div class="smallexample">
! <pre class="smallexample"><var>srcdir</var>/contrib/test_summary -p your_commentary.txt \
!     -m gcc-testresults@gcc.gnu.org |sh
! </pre></div>
  
! <p>This script uses the <code>Mail</code> program to send the results, so
! make sure it is in your <code>PATH</code>.  The file <samp>your_commentary.txt</samp> is
  prepended to the testsuite summary and should contain any special
  remarks you have on your results or your build environment.  Please
  do not edit the testsuite result block or the subject line, as these
  messages may be automatically processed.
! </p>
! <hr />
! <p>
  <p><a href="./index.html">Return to the GCC Installation page</a>
+ </p>
+ 
+ 
+ 
+ 
  
  
+ <hr>
+ 
+ 
+ 
+ </body>
+ </html>
diff -Nrcpad gcc-6.4.0/LAST_UPDATED gcc-6.5.0/LAST_UPDATED
*** gcc-6.4.0/LAST_UPDATED	Tue Jul  4 07:28:15 2017
--- gcc-6.5.0/LAST_UPDATED	Fri Oct 26 09:56:37 2018
***************
*** 1 ****
! Obtained from SVN: tags/gcc_6_4_0_release revision 249946
--- 1 ----
! Obtained from SVN: tags/gcc_6_5_0_release revision 265525
diff -Nrcpad gcc-6.4.0/MD5SUMS gcc-6.5.0/MD5SUMS
*** gcc-6.4.0/MD5SUMS	Tue Jul  4 09:48:56 2017
--- gcc-6.5.0/MD5SUMS	Fri Oct 26 10:13:56 2018
***************
*** 1,5 ****
  # This file contains the MD5 checksums of the files in the 
! # gcc-6.4.0.tar.xz tarball.
  #
  # Besides verifying that all files in the tarball were correctly expanded,
  # it also can be used to determine if any files have changed since the
--- 1,5 ----
  # This file contains the MD5 checksums of the files in the 
! # gcc-6.5.0.tar.xz tarball.
  #
  # Besides verifying that all files in the tarball were correctly expanded,
  # it also can be used to determine if any files have changed since the
*************** bca1d0b981220f8f259a9d4388f70546  .gitig
*** 16,46 ****
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  5cf7764626b7dd7272b2fe11403d1b6a  boehm-gc/MacProjects.sit.hqx
--- 16,46 ----
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*************** c0c823fa830e3f7c4620a33fc4818f4d  boehm-
*** 219,225 ****
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--- 219,225 ----
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*************** e2dc6b4fd62b77bff96b7951ef74f78f  config
*** 310,316 ****
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*** 557,563 ****
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! 2bcaa1ab0fb3394927c8d574bca926d3  fixincludes/tests/base/sys/pthread.h
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  58c647b7471bba144d18903e6c2d770a  fixincludes/tests/base/sys/spinlock.h
--- 557,563 ----
  76e93d35aa7cce1d8912c9de39a02e1a  fixincludes/tests/base/sys/int_limits.h
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! 1f8242c9bbd0a869fb3da98d594aa0eb  fixincludes/tests/base/sys/pthread.h
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  58c647b7471bba144d18903e6c2d770a  fixincludes/tests/base/sys/spinlock.h
*************** a5e817d35ded04a0fb03999b50c0e89e  fixinc
*** 574,585 ****
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  a2fe1dc808019c9134bca8a4a9a8eec2  gcc/ABOUT-GCC-NLS
! 8dd877cbb3b6a77a849a54b5e3f53aa6  gcc/BASE-VER
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--- 574,585 ----
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! de04911dc07d4b0999e3c0ad007406fb  gcc/ChangeLog
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*************** fb3fadb88e1d2b3b640cfaaa5ff11780  gcc/Ch
*** 607,613 ****
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! 7a24c7aa74f98ed602e64b231755da7d  gcc/DATESTAMP
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--- 607,613 ----
  3eb07e0b2e542409bf73d359f7f65609  gcc/ChangeLog.ptr
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! c70ab3f270dc301136b9f6f24fdd78c3  gcc/DATESTAMP
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*************** ec6799501b2eb2923d5de6a66169dbd2  gcc/ON
*** 619,625 ****
  e71640635091e22ac2f09f2573aee53d  gcc/acinclude.m4
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! 7af4e08710f8a28bd18e5ff9fda23f9b  gcc/ada/ChangeLog
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--- 619,625 ----
  e71640635091e22ac2f09f2573aee53d  gcc/acinclude.m4
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! cc68bfa1d9794f8aee8986a1204303f7  gcc/ada/ChangeLog
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*************** c97edf7ce39a908dcaec55eb49d0abee  gcc/ad
*** 1640,1654 ****
  51c95420b5900990141d2e5705582197  gcc/ada/gcc-interface/ada.h
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! c60b129a815f77a281f031207699d5f5  gcc/ada/gcc-interface/decl.c
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! 112c42299092d8088ca89769fbe9dcd0  gcc/ada/gcc-interface/trans.c
! 0802ab9900bc5185fa1d65746789a9a2  gcc/ada/gcc-interface/utils.c
  d55eec83add5f1d2e50008abe398fe2c  gcc/ada/gcc-interface/utils2.c
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  baa8fdaf8d693eb6c5a7e42944887584  gcc/ada/get_scos.ads
--- 1640,1654 ----
  51c95420b5900990141d2e5705582197  gcc/ada/gcc-interface/ada.h
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! bb1f7b9e05bf06041fe04a9fbf84a570  gcc/ada/gcc-interface/trans.c
! 4805614803d35d5816025bcc3dea1b04  gcc/ada/gcc-interface/utils.c
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*************** fc7be41f48bbad07a07baf3e27fc889b  gcc/ad
*** 2738,2748 ****
  0493a7ed666c4b102be665a8e328be35  gcc/ada/xutil.adb
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! 62d91f89038decc8b1a92d787c8172df  gcc/alias.c
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! aad82e03b4be837925c0c99a5f6458b9  gcc/asan.c
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  01d94dd275ab10965e144d0b9fa042f9  gcc/attribs.h
--- 2738,2748 ----
  0493a7ed666c4b102be665a8e328be35  gcc/ada/xutil.adb
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! 9a051ea07e23bc1c0cd70a93e8b3c52c  gcc/alias.c
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! e2e3a4ba2c175895c4b83d120bf6378a  gcc/asan.c
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  01d94dd275ab10965e144d0b9fa042f9  gcc/attribs.h
*************** abd554879edd19fa4b3d9d7440e4bac0  gcc/au
*** 2751,2789 ****
  6bc02d4d5e6a01b745db21ed909a394a  gcc/auto-profile.h
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! 96780f3db0ec1a8c3ce90a0be0f87abf  gcc/bb-reorder.c
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! 00add7ef08573b7f4f1f5de60cf7da0a  gcc/builtins.c
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! ad80df99d116311ca9bd2cba2b48e75b  gcc/c-family/c-common.c
  2ace27db32acd08f6b79a83ac2586e45  gcc/c-family/c-common.def
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! 2726890948ddd8a7c99836847c4c465b  gcc/c-family/c-cppbuiltin.c
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! 889f2fce374ebce16f1c541fafc3b2e6  gcc/c-family/c-gimplify.c
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  f9fc887cc07ce21721909e6cc63fe030  gcc/c-family/c-objc.h
! f10a78fbf89addf947056a7351a1eaad  gcc/c-family/c-omp.c
  effc8ea1b69a9bc9bc97432bfb3c376a  gcc/c-family/c-opts.c
  b243e9180d094b7539387b07231deb33  gcc/c-family/c-pch.c
  25b59b2fa2b392ea34e1eafa54f0641a  gcc/c-family/c-ppoutput.c
! 6d8207ba65156b5bc18d732e7e97b8fa  gcc/c-family/c-pragma.c
  64d38c51d9f886113f33f8bff3075353  gcc/c-family/c-pragma.h
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--- 2751,2789 ----
  6bc02d4d5e6a01b745db21ed909a394a  gcc/auto-profile.h
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! 4437da79c299e8e367c4eb3a53b57ed8  gcc/bb-reorder.c
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! d342e3741a8f214b2d0e18738c7e6f25  gcc/builtins.c
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! 0c0caf019537742e97802b4e6a1483b1  gcc/c-family/ChangeLog
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! 07411a758fe5a41bd86d7d6c1499657d  gcc/c-family/c-cppbuiltin.c
  3b48128f9d0659eb1ac831b7d0309053  gcc/c-family/c-dump.c
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! cde394a77b04272b814b8fe2e67e2cc9  gcc/c-family/c-gimplify.c
  070d0560fe68e0d18e80f7ea464773ae  gcc/c-family/c-indentation.c
  c40da6434275aba5adccc92809e6e2d6  gcc/c-family/c-indentation.h
  969f5257abd1441eb2e44ec57beac8a3  gcc/c-family/c-lex.c
  f9fc887cc07ce21721909e6cc63fe030  gcc/c-family/c-objc.h
! 11e43d7b16d6103150bf866880fea67f  gcc/c-family/c-omp.c
  effc8ea1b69a9bc9bc97432bfb3c376a  gcc/c-family/c-opts.c
  b243e9180d094b7539387b07231deb33  gcc/c-family/c-pch.c
  25b59b2fa2b392ea34e1eafa54f0641a  gcc/c-family/c-ppoutput.c
! b4cdfceeae34aed6d0d2c08bea95fabe  gcc/c-family/c-pragma.c
  64d38c51d9f886113f33f8bff3075353  gcc/c-family/c-pragma.h
  b9b3d97b302063cfd8aac22fcd29445e  gcc/c-family/c-pretty-print.c
  e61eafb842ffca3b21e6acaf62b9d679  gcc/c-family/c-pretty-print.h
*************** cff22aa92cff7c3a722057eb507d5297  gcc/c-
*** 2797,2821 ****
  087e1ce4fd7400b0b286e3c2c7bd9aa4  gcc/c-family/cilk.c
  7deafa20602c6826937fab0a455cc8ed  gcc/c-family/cppspec.c
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! 8deef7bd6ea882b3426ab41c122fcaa6  gcc/c/ChangeLog
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  6d3e1a369a7f78b2f8b9d9f0f6f8aff7  gcc/c/c-aux-info.c
  75e6188c864e3e7a0398e821f83a49e6  gcc/c/c-convert.c
! 3be1120b3ced7298341889daa80f5c21  gcc/c/c-decl.c
  7abaf0d72170be02c36b07d3105cdb5d  gcc/c/c-errors.c
  ec05f0ce37695da803820ab28dd14147  gcc/c/c-fold.c
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  88a01d3181a5b0369e3febd6acfe9520  gcc/c/c-lang.h
  8cac2a5e96973c846bd33bb75d3f651d  gcc/c/c-objc-common.c
  1092d3b7a8d0bc846e6d7f7433692208  gcc/c/c-objc-common.h
! e4908a290c7d655df459c0073af10733  gcc/c/c-parser.c
  9b1855479c2c36717fefaba6896f2f8d  gcc/c/c-tree.h
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  3747bb41e8fd6a5de51dd6e7a7a47970  gcc/c/config-lang.in
  48ad75424472d7bdc1b734bf90e32a67  gcc/c/gccspec.c
  82c12673c34f23c306e289a9143864bc  gcc/caller-save.c
! a08670dbd137544351acb8128dc2f6be  gcc/calls.c
  f7110748a1375215f4469bde141b3432  gcc/calls.h
  0d087c05ff5dd25db84dedfbaf568d4b  gcc/ccmp.c
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--- 2797,2821 ----
  087e1ce4fd7400b0b286e3c2c7bd9aa4  gcc/c-family/cilk.c
  7deafa20602c6826937fab0a455cc8ed  gcc/c-family/cppspec.c
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! 92bfacefa65e353c4da641c4652f10c6  gcc/c/ChangeLog
  9cdf859ec7692fe84b67ba9109e3995e  gcc/c/Make-lang.in
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  75e6188c864e3e7a0398e821f83a49e6  gcc/c/c-convert.c
! 8925412d7b1888657fb24da30cdd814c  gcc/c/c-decl.c
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  1092d3b7a8d0bc846e6d7f7433692208  gcc/c/c-objc-common.h
! cec60bfc5a6754312280a5c107342ca6  gcc/c/c-parser.c
  9b1855479c2c36717fefaba6896f2f8d  gcc/c/c-tree.h
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  3747bb41e8fd6a5de51dd6e7a7a47970  gcc/c/config-lang.in
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! 29dda45d570a2199cc73b3c66db22297  gcc/calls.c
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  d3d5b380ad6f749bd8db65a92d79e3ee  gcc/ccmp.h
*************** ba2325a039f1edafdd2749fa7e46116f  gcc/cf
*** 2828,2834 ****
  745b7c812796bf46765ebc99d5ad4566  gcc/cfgbuild.h
  a6ae55469bb1b6ad19931eb0ce91c962  gcc/cfgcleanup.c
  3bc167b2db649ed6cbd7ce505e48d35d  gcc/cfgcleanup.h
! 3d4be9fe9feb4248e7822dbf2561140c  gcc/cfgexpand.c
  020afc9cbf1b8f3e6768a0ce6a7e9b55  gcc/cfgexpand.h
  9d7a00e997730c1e512a0c8f318e1715  gcc/cfghooks.c
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--- 2828,2834 ----
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! 51d93f4879408945dbf28f4d3c47d238  gcc/cfgexpand.c
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  86822fd705361191ce501823f4c84cf8  gcc/cfghooks.h
*************** b88829988c910c71ba82d14b4ea12a60  gcc/cf
*** 2837,2846 ****
  e40d94d671641c4d2a68835c259d8098  gcc/cfgloopanal.c
  224984ea290493db3870a0ac1fcec23c  gcc/cfgloopmanip.c
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! 0e5a7f5771e6f0aeb4ab18b86f9b38ee  gcc/cfgrtl.c
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! cc18f6e807e83ead91e77e951985c3e7  gcc/cgraph.c
! 50152725336ce062d5da807b011062e3  gcc/cgraph.h
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  8cba3dee2bc5bac28887424884235c2f  gcc/cgraphclones.c
  c7e06f5dfb81150c5b67017b54ebe577  gcc/cgraphunit.c
--- 2837,2846 ----
  e40d94d671641c4d2a68835c259d8098  gcc/cfgloopanal.c
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! 3cd4ac38cc32a0d1423afedc0404fdbb  gcc/cfgrtl.c
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! 02c33fcad24e5d54934bd21df8ec20b5  gcc/cgraph.c
! 1a10424d7be5213227f933b5fd1b6c78  gcc/cgraph.h
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*************** f2f1238527fb09fec9e02563467f02a6  gcc/ci
*** 2854,2863 ****
  7159c8f69b2cd7b33932823f38c3a6df  gcc/collect-utils.h
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! ff0562eab329938aa3f51db0dc404c54  gcc/collect2.c
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! 4677e833fa843bc08ce425d5672f29a6  gcc/combine.c
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--- 2854,2863 ----
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! 033be0715255c7aa7b5fc1c1fc9b04bb  gcc/collect2.c
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! 55d80db40410b22a5a8a93ca59af61c8  gcc/combine.c
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*************** e7c872dbe8d1a1d2f4a90b7c91b0f69a  gcc/co
*** 2913,2921 ****
  833a4f3b8d4bd41edd9548e426fd27b3  gcc/compare-elim.c
  5d296c1586f1d268a85c2aa0a3b4d64a  gcc/conditions.h
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--- 2913,2921 ----
  833a4f3b8d4bd41edd9548e426fd27b3  gcc/compare-elim.c
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*************** f2d064a151addbd68d372321f727724f  gcc/co
*** 2937,2953 ****
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! ade8064802f716d7fa1ebff95b142848  gcc/config/aarch64/constraints.md
! 2d6130eaa176083268d4bb1239710886  gcc/config/aarch64/cortex-a57-fma-steering.c
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  ef04105e72304d0dadcfab0c7e6dcdb7  gcc/config/aarch64/geniterators.sh
--- 2937,2953 ----
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! 455c061771b0839f094ac92a6bfeb1bd  gcc/config/aarch64/aarch64.c
! 1f76bea5c616df4ce234bccff35b991d  gcc/config/aarch64/aarch64.h
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! e7bbb05cce83301573e0a34812c5f6dd  gcc/config/aarch64/constraints.md
! 43109352da8a2845c1a81e125c66b59a  gcc/config/aarch64/cortex-a57-fma-steering.c
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  ef04105e72304d0dadcfab0c7e6dcdb7  gcc/config/aarch64/geniterators.sh
*************** ed25b8a49c845978dc3fc8336b0a7336  gcc/co
*** 2962,2970 ****
  8b41b511cae4a5eda35cf19755875d5a  gcc/config/aarch64/x-aarch64
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! 07b69b4d54e4a57bf76dea6f05e45340  gcc/config/alpha/alpha.c
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! d248ba9c7788eb583ed7b179cc5029d8  gcc/config/alpha/alpha.md
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  d6ffc31b378eda081971d2c468da4e2f  gcc/config/alpha/driver-alpha.c
--- 2962,2970 ----
  8b41b511cae4a5eda35cf19755875d5a  gcc/config/aarch64/x-aarch64
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! 5771e89b8184cd319c12af8b6280c0cc  gcc/config/alpha/alpha.c
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! ffb1b6c5fd1a67508308c911c60fb489  gcc/config/alpha/alpha.md
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  d6ffc31b378eda081971d2c468da4e2f  gcc/config/alpha/driver-alpha.c
*************** e4c3e1394a5e9d65296df5ba41d716fd  gcc/co
*** 2979,2985 ****
  7cfc149f1f279cb42ca422b0f9012507  gcc/config/alpha/netbsd.h
  9f556859a02b0993b864fd9cd20e4f6b  gcc/config/alpha/openbsd.h
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! b3d30e38355a3d831909610b49db795d  gcc/config/alpha/sync.md
  6e8dd648b9668f18b1dfd9f1203c9885  gcc/config/alpha/t-linux
  eb33afd428422b1273e7ae7e68929e27  gcc/config/alpha/t-vms
  ba4921ae000c709c35171b7cd0bb9ad5  gcc/config/alpha/vms.h
--- 2979,2985 ----
  7cfc149f1f279cb42ca422b0f9012507  gcc/config/alpha/netbsd.h
  9f556859a02b0993b864fd9cd20e4f6b  gcc/config/alpha/openbsd.h
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  ba4921ae000c709c35171b7cd0bb9ad5  gcc/config/alpha/vms.h
*************** ad543e30d590f678c2abbfb04e300700  gcc/co
*** 3011,3019 ****
  74de244fd60b2d76a3787960d782373f  gcc/config/arm/aarch-cost-tables.h
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  62fcdf218b75986907eca422e13aabd4  gcc/config/arm/arm-arches.def
! 45c137a4c7f246222345ce652c93ee34  gcc/config/arm/arm-builtins.c
  1e0456dd3a7822f2fa3e26f77e2c2d26  gcc/config/arm/arm-c.c
! 65b5dc7fa9360d10a9ca86119c20ba77  gcc/config/arm/arm-cores.def
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  85480d84c1d4530f60a899de92481568  gcc/config/arm/arm-generic.md
--- 3011,3019 ----
  74de244fd60b2d76a3787960d782373f  gcc/config/arm/aarch-cost-tables.h
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! 5eaab1f98e1ba1b8da4e56cd1e5e6250  gcc/config/arm/arm-builtins.c
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! 4baf0cb11366ef007be20d53c7f9b9ea  gcc/config/arm/arm-cores.def
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*************** b63afb8e425edc52c016b6c15066845e  gcc/co
*** 3024,3032 ****
  b1cbf9ca4f296f2f39987d24e0af2530  gcc/config/arm/arm-simd-builtin-types.def
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! 27c81004bfff69ffe22b7958e4c169b5  gcc/config/arm/arm.c
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  c43acf0c4800fd0155e9b2507b8b8c6d  gcc/config/arm/arm1026ejs.md
--- 3024,3032 ----
  b1cbf9ca4f296f2f39987d24e0af2530  gcc/config/arm/arm-simd-builtin-types.def
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*************** f7822f53f081e75f9ceab13e1943664e  gcc/co
*** 3064,3070 ****
  3c4127440c24e5b23dce8d0f7cb8619b  gcc/config/arm/fa626te.md
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! 0ecf27dc3b0558645025fe3aaa600593  gcc/config/arm/freebsd.h
  870d22c2f986f799ebc3522dace502f8  gcc/config/arm/genopt.sh
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--- 3064,3070 ----
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*************** b08d4b1581307b34bb5a9792a0a09330  gcc/co
*** 3079,3085 ****
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--- 3079,3085 ----
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*************** acb8604f5d84dde1d6897a67b4d6be18  gcc/co
*** 3121,3130 ****
  4c3c46eb845e3505658b81b8eaa14288  gcc/config/avr/avr-modes.def
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! 75865a0994ceb679f8762ad375e15065  gcc/config/avr/avr.c
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! 97ae0e97c66153cd01ba33e6dd23a191  gcc/config/avr/avr.opt
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--- 3121,3130 ----
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! 6173223faa3fa0cca4ca56f85b5fcb49  gcc/config/avr/avr.c
  e85dcf00374c22efe74da576e0e0f052  gcc/config/avr/avr.h
  e7c7f8ca590b4f600384b83d1b73062f  gcc/config/avr/avr.md
! 00bc34211a05b421dfe10a4ec8cb8a09  gcc/config/avr/avr.opt
  6eea869c9b52b117753eab2b0bb544ab  gcc/config/avr/avrlibc.h
  272063927d64ca768006dc1e703a4a4c  gcc/config/avr/builtins.def
  fe325d127710d93f8c73b9ebfdd07ef4  gcc/config/avr/constraints.md
*************** b58ee6f0c91c09c8e58d4268b97323d3  gcc/co
*** 3278,3284 ****
  bd065f633c741aebce934194f0166de3  gcc/config/g.opt
  be000412d348dbb8cdc21e4b0c6c23c8  gcc/config/glibc-c.c
  8bb26426eee400007076768cbeade3ab  gcc/config/glibc-stdint.h
! 05f899a52d91da6c2e75b7cd2595492f  gcc/config/gnu-user.h
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  0527ecf61be4a354d1281fa67e3dc093  gcc/config/gnu.h
  d32fbedefe94ad3719b78f89e4ac603c  gcc/config/h8300/constraints.md
--- 3278,3284 ----
  bd065f633c741aebce934194f0166de3  gcc/config/g.opt
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  8bb26426eee400007076768cbeade3ab  gcc/config/glibc-stdint.h
! bd1891640a691d9ed98929e8e8bd6c01  gcc/config/gnu-user.h
  03ed6a500883a8e218abd8473d3934f4  gcc/config/gnu-user.opt
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  d32fbedefe94ad3719b78f89e4ac603c  gcc/config/h8300/constraints.md
*************** c68a78a785cc22c67f0f258513b89af0  gcc/co
*** 3314,3320 ****
  dbce93d80e05b41e7c9310744086319c  gcc/config/i386/avx512cdintrin.h
  60c601281f9198e3d8010430b8c76109  gcc/config/i386/avx512dqintrin.h
  88a76e2acc1ff36354da2b635a29f110  gcc/config/i386/avx512erintrin.h
! 3c4706c4cc6dea2d5b398585d439b332  gcc/config/i386/avx512fintrin.h
  fd40a3994a031d23494319eeb5890e14  gcc/config/i386/avx512ifmaintrin.h
  230a13a5117589196f0c0d6ddd19a459  gcc/config/i386/avx512ifmavlintrin.h
  3db975ae169b88fc867d8c79ae116ef3  gcc/config/i386/avx512pfintrin.h
--- 3314,3320 ----
  dbce93d80e05b41e7c9310744086319c  gcc/config/i386/avx512cdintrin.h
  60c601281f9198e3d8010430b8c76109  gcc/config/i386/avx512dqintrin.h
  88a76e2acc1ff36354da2b635a29f110  gcc/config/i386/avx512erintrin.h
! a74567571d8df44aff40d5ba54b9daf7  gcc/config/i386/avx512fintrin.h
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  3db975ae169b88fc867d8c79ae116ef3  gcc/config/i386/avx512pfintrin.h
*************** d5b47b11f3c9a967f9c444aa1adecc46  gcc/co
*** 3337,3343 ****
  fe17ca5109af0e6e93b74bae231d1a55  gcc/config/i386/clflushoptintrin.h
  8db337d30ef627209263315869a56a98  gcc/config/i386/clwbintrin.h
  876790e99f6c0bb421e1492c7ea46ff0  gcc/config/i386/clzerointrin.h
! a6979d6ddcc5bb8ecf2a26f5ea34c71c  gcc/config/i386/constraints.md
  71baed36fc56f65d8c91aaefd5758aa1  gcc/config/i386/core2.md
  af1276d5c47a51a9ed8ea5d69de248a1  gcc/config/i386/cpuid.h
  7fee26d8fedd334aa6fcd4bdc08cffb3  gcc/config/i386/cross-stdarg.h
--- 3337,3343 ----
  fe17ca5109af0e6e93b74bae231d1a55  gcc/config/i386/clflushoptintrin.h
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  876790e99f6c0bb421e1492c7ea46ff0  gcc/config/i386/clzerointrin.h
! a9a16e9e2609fca829ed337e39e80b41  gcc/config/i386/constraints.md
  71baed36fc56f65d8c91aaefd5758aa1  gcc/config/i386/core2.md
  af1276d5c47a51a9ed8ea5d69de248a1  gcc/config/i386/cpuid.h
  7fee26d8fedd334aa6fcd4bdc08cffb3  gcc/config/i386/cross-stdarg.h
*************** b2fbe0a751c65b3c78b2dca04b902297  gcc/co
*** 3367,3374 ****
  ade2d1412285926ca3c5d45ec6bae8a4  gcc/config/i386/geode.md
  ebc0f17587e0304e3b3a4b276076dfbc  gcc/config/i386/gmm_malloc.h
  f830d2e889bb02408a54d531021c6cc8  gcc/config/i386/gnu-user-common.h
! e1d8df2e25020f981d9838adb79a77d0  gcc/config/i386/gnu-user.h
! fcaefa2eebd685b349d58b0be0098d08  gcc/config/i386/gnu-user64.h
  7734858b2ccf0fc8f3c466450d64b956  gcc/config/i386/gnu.h
  3349498ec85e12ac7055f4802239086c  gcc/config/i386/gstabs.h
  0c22aae734b3741e49a1a0d182b3c437  gcc/config/i386/haswell.md
--- 3367,3374 ----
  ade2d1412285926ca3c5d45ec6bae8a4  gcc/config/i386/geode.md
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! bb15a719ce7d5af001d62d6f5daf5d8d  gcc/config/i386/gnu-user.h
! 821b6d9a15964b9323550e4786f9b9b5  gcc/config/i386/gnu-user64.h
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  0c22aae734b3741e49a1a0d182b3c437  gcc/config/i386/haswell.md
*************** deebf656960fb03db30ee8cf5088fa22  gcc/co
*** 3380,3391 ****
  5987dd36c379ccb0419cbb675d58dd96  gcc/config/i386/i386-c.c
  c29497fe4c1e5389895075d220252ca8  gcc/config/i386/i386-interix.h
  1c71860a666631f1a174dea14c52dbff  gcc/config/i386/i386-modes.def
! ac0b4653ef3d1e8200e8efbf73c5d8f0  gcc/config/i386/i386-opts.h
! d3f3a1198cf0be4e2a3b9b10e0f761cc  gcc/config/i386/i386-protos.h
! 8e5cf8849582869ad5b9439125b5fa8d  gcc/config/i386/i386.c
! e21d3883b173794ad0c6724e144324d6  gcc/config/i386/i386.h
! 3dbf0f2634e6ebf0491f0caf09e6b426  gcc/config/i386/i386.md
! fcfe67e0458640256c81b86e30fd5304  gcc/config/i386/i386.opt
  be209c39783d5218055012112fe03242  gcc/config/i386/i386elf.h
  3f06069affcd9b661e1444aa62b433d7  gcc/config/i386/ia32intrin.h
  c86877b6f78344601b6f3c88be68407e  gcc/config/i386/iamcu.h
--- 3380,3391 ----
  5987dd36c379ccb0419cbb675d58dd96  gcc/config/i386/i386-c.c
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  1c71860a666631f1a174dea14c52dbff  gcc/config/i386/i386-modes.def
! bf07c705102a7584014a5a64728a0789  gcc/config/i386/i386-opts.h
! 210ca898624ba5b33ce7168c3c78783b  gcc/config/i386/i386-protos.h
! 3c6e53951394ace1839784a6bdd07772  gcc/config/i386/i386.c
! 79f923339eb9dbb43f20dfd752fece3b  gcc/config/i386/i386.h
! 874bf85571b067fce7eeebfbb30e929d  gcc/config/i386/i386.md
! 573b35c53a18d2234081619a09b842f2  gcc/config/i386/i386.opt
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  3f06069affcd9b661e1444aa62b433d7  gcc/config/i386/ia32intrin.h
  c86877b6f78344601b6f3c88be68407e  gcc/config/i386/iamcu.h
*************** c6c28e716fe73119003638d891187a45  gcc/co
*** 3429,3435 ****
  5aa912e76dac257cfe5012440f7ad90a  gcc/config/i386/pmmintrin.h
  7810065fc76773a3b740126a476af54d  gcc/config/i386/popcntintrin.h
  4dcd1cf3c734c77f06e840e1fbd678f8  gcc/config/i386/ppro.md
! 50884030e7b9ddc82422cf705f6659d7  gcc/config/i386/predicates.md
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  7feefb44b5c73254b20e5b7820e45ba1  gcc/config/i386/rdos.h
  d57b23dfe66e6405fed787f9047ce355  gcc/config/i386/rdos64.h
--- 3429,3435 ----
  5aa912e76dac257cfe5012440f7ad90a  gcc/config/i386/pmmintrin.h
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  4dcd1cf3c734c77f06e840e1fbd678f8  gcc/config/i386/ppro.md
! f27bf7ee8efb4be066c04715f6f27883  gcc/config/i386/predicates.md
  a0f562fc0aef289f6cdef5b931f5e39f  gcc/config/i386/prfchwintrin.h
  7feefb44b5c73254b20e5b7820e45ba1  gcc/config/i386/rdos.h
  d57b23dfe66e6405fed787f9047ce355  gcc/config/i386/rdos64.h
*************** b468336ec8c9314a8b3c8738c5bbe401  gcc/co
*** 3440,3447 ****
  ed3ee42c50a4ea2d1cccc046aa7c7306  gcc/config/i386/shaintrin.h
  6d7b4d52cdc2a6db01f9c20c45be0795  gcc/config/i386/slm.md
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! 0a7e726af98f6a39952052f361cdfbee  gcc/config/i386/sol2.h
! d19c00e2e4fdda44c4398dcf66cd5dbf  gcc/config/i386/sse.md
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  be9c2b7e2ff5d3a32ab3d902b56762ac  gcc/config/i386/stringop.def
  dd538a6193ed3c62883cd3fed5dd4461  gcc/config/i386/subst.md
--- 3440,3447 ----
  ed3ee42c50a4ea2d1cccc046aa7c7306  gcc/config/i386/shaintrin.h
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! cc841a06d54eec181552781ffeb0c987  gcc/config/i386/sol2.h
! 3468f799ef99b8ffd93e5ba7099c5149  gcc/config/i386/sse.md
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  dd538a6193ed3c62883cd3fed5dd4461  gcc/config/i386/subst.md
*************** bae69273c5e47d61e99558ca73c4fabd  gcc/co
*** 3482,3488 ****
  12e09c6fa27c603c6db59fbfc2a6b089  gcc/config/i386/x-i386
  214d4c585b541f5f045f139c36119850  gcc/config/i386/x-mingw32
  7b415e81225fe3f7288c2824b44b6f8e  gcc/config/i386/x86-64.h
! dda5cbc520b915635a3d4553bc838576  gcc/config/i386/x86-tune.def
  58d683e0e4dcc86fd997fc078b31f54b  gcc/config/i386/x86intrin.h
  de5913a1cbf5d37dbbc88e8a4ded82c5  gcc/config/i386/xm-cygwin.h
  d3b79338128632f83921f677f70381bf  gcc/config/i386/xm-djgpp.h
--- 3482,3488 ----
  12e09c6fa27c603c6db59fbfc2a6b089  gcc/config/i386/x-i386
  214d4c585b541f5f045f139c36119850  gcc/config/i386/x-mingw32
  7b415e81225fe3f7288c2824b44b6f8e  gcc/config/i386/x86-64.h
! 515ab934cc9047d02021b4d0959c40ac  gcc/config/i386/x86-tune.def
  58d683e0e4dcc86fd997fc078b31f54b  gcc/config/i386/x86intrin.h
  de5913a1cbf5d37dbbc88e8a4ded82c5  gcc/config/i386/xm-cygwin.h
  d3b79338128632f83921f677f70381bf  gcc/config/i386/xm-djgpp.h
*************** f2dfae8bc7a1e668d7426137950efa41  gcc/co
*** 3693,3699 ****
  4cd4da5068e57474273ab961fbf05275  gcc/config/mips/elf.h
  2cdf78d332ca0c49e07d3e5062e9bc23  gcc/config/mips/elfoabi.h
  642b083dcc3e0e2c34a4e6dfbdc03aac  gcc/config/mips/elforion.h
! d924e5532852b3d6ea8fbd1c29014e32  gcc/config/mips/frame-header-opt.c
  eb511f632bdece67f5fe5deedcd2e82e  gcc/config/mips/generic.md
  8e1b19db8c9207b0771c35429d93f5fe  gcc/config/mips/genopt.sh
  ebfc2fa2a869f3d6d8004b4979cad2e4  gcc/config/mips/gnu-user.h
--- 3693,3699 ----
  4cd4da5068e57474273ab961fbf05275  gcc/config/mips/elf.h
  2cdf78d332ca0c49e07d3e5062e9bc23  gcc/config/mips/elfoabi.h
  642b083dcc3e0e2c34a4e6dfbdc03aac  gcc/config/mips/elforion.h
! 0e519c0fe1414f3fc3325893b8b60dac  gcc/config/mips/frame-header-opt.c
  eb511f632bdece67f5fe5deedcd2e82e  gcc/config/mips/generic.md
  8e1b19db8c9207b0771c35429d93f5fe  gcc/config/mips/genopt.sh
  ebfc2fa2a869f3d6d8004b4979cad2e4  gcc/config/mips/gnu-user.h
*************** abea4d523d1b02ef93fc69e4159b6c20  gcc/co
*** 3854,3860 ****
  d835d08884a2846e70bef505767bd3f1  gcc/config/nios2/t-rtems
  c2be83b7f197d233a6ce04c2245a312a  gcc/config/nvptx/mkoffload.c
  71182308acd7b24f983c5c3836f21e97  gcc/config/nvptx/nvptx-protos.h
! 725e3638da02e22dc3945cec254af50e  gcc/config/nvptx/nvptx.c
  ee26c09dc69c862b8465425e61efb50d  gcc/config/nvptx/nvptx.h
  b6d00d17aa4debe5cbfb686a317af311  gcc/config/nvptx/nvptx.md
  f20baafe92ab83b58eced858f6668a59  gcc/config/nvptx/nvptx.opt
--- 3854,3860 ----
  d835d08884a2846e70bef505767bd3f1  gcc/config/nios2/t-rtems
  c2be83b7f197d233a6ce04c2245a312a  gcc/config/nvptx/mkoffload.c
  71182308acd7b24f983c5c3836f21e97  gcc/config/nvptx/nvptx-protos.h
! 1ae924741dbf4d2807875a14da58a417  gcc/config/nvptx/nvptx.c
  ee26c09dc69c862b8465425e61efb50d  gcc/config/nvptx/nvptx.h
  b6d00d17aa4debe5cbfb686a317af311  gcc/config/nvptx/nvptx.md
  f20baafe92ab83b58eced858f6668a59  gcc/config/nvptx/nvptx.opt
*************** c71c9d34d6df22094a3f27d33693c09f  gcc/co
*** 3884,3902 ****
  e1c6685604f681faea2ce89975cb7fb0  gcc/config/pa/pa-openbsd.h
  7fe7a5966510922de22aeefc35c8e010  gcc/config/pa/pa-opts.h
  b1fa12eef4f2d69520c8e33ff00ea833  gcc/config/pa/pa-protos.h
! af5ccaf4e328676c8d7821f146be0e40  gcc/config/pa/pa.c
! cf85837fdda5b34386235c1ded652a62  gcc/config/pa/pa.h
! e6169925aae03f7207e5ca018a354de1  gcc/config/pa/pa.md
! 2a55715c21637c72f4c2306798f28715  gcc/config/pa/pa.opt
! 2c84ac4128fba0f0ec7a3a85f7724f7f  gcc/config/pa/pa32-linux.h
  3eb3ff97a411ccda47b603da5c8cc95f  gcc/config/pa/pa32-openbsd.h
  79ddf9a5e1903aa7698e7a4cecf80b3f  gcc/config/pa/pa32-regs.h
! 85254391f8fd0037501c946f0f1b8a08  gcc/config/pa/pa64-hpux.h
  7808600a88ccfbaeaa6f8cc1d7ef2934  gcc/config/pa/pa64-hpux.opt
  41eb6ccac10cb5ccdb7823e70f6811cd  gcc/config/pa/pa64-linux.h
  681b2a946821f47774ea5dbaf6a53a15  gcc/config/pa/pa64-regs.h
  a9a6afd79b827565ffb8de8330b4cfe6  gcc/config/pa/pa64-start.h
! 77fe5dc59603c105a210dd5be3e2667a  gcc/config/pa/predicates.md
  46c09df5eaf8d6cfcf53b2aa7e81ad83  gcc/config/pa/som.h
  4104beb84cb7f3a8a5915652c3da66c5  gcc/config/pa/t-dce-thr
  6fd25f8c665d2d7390ea94c01dcb8e34  gcc/config/pa/t-linux
--- 3884,3902 ----
  e1c6685604f681faea2ce89975cb7fb0  gcc/config/pa/pa-openbsd.h
  7fe7a5966510922de22aeefc35c8e010  gcc/config/pa/pa-opts.h
  b1fa12eef4f2d69520c8e33ff00ea833  gcc/config/pa/pa-protos.h
! 820570fce3d274c549c7d90931b22c67  gcc/config/pa/pa.c
! 75c405ffffd1bc0750f97a5e3bfd5875  gcc/config/pa/pa.h
! 0e6294cf92bf6f38bba8fbf9c1fd800e  gcc/config/pa/pa.md
! 762950e3f16815e264bcfa4b680a8869  gcc/config/pa/pa.opt
! 7367183e88a0b0ce8ea876b61d33d65c  gcc/config/pa/pa32-linux.h
  3eb3ff97a411ccda47b603da5c8cc95f  gcc/config/pa/pa32-openbsd.h
  79ddf9a5e1903aa7698e7a4cecf80b3f  gcc/config/pa/pa32-regs.h
! e2ae3da20476750bc326a0a2d41c4189  gcc/config/pa/pa64-hpux.h
  7808600a88ccfbaeaa6f8cc1d7ef2934  gcc/config/pa/pa64-hpux.opt
  41eb6ccac10cb5ccdb7823e70f6811cd  gcc/config/pa/pa64-linux.h
  681b2a946821f47774ea5dbaf6a53a15  gcc/config/pa/pa64-regs.h
  a9a6afd79b827565ffb8de8330b4cfe6  gcc/config/pa/pa64-start.h
! d0fc589fa84a9485d099371d0f073ddc  gcc/config/pa/predicates.md
  46c09df5eaf8d6cfcf53b2aa7e81ad83  gcc/config/pa/som.h
  4104beb84cb7f3a8a5915652c3da66c5  gcc/config/pa/t-dce-thr
  6fd25f8c665d2d7390ea94c01dcb8e34  gcc/config/pa/t-linux
*************** fa946996696fb3df283f1891fcd00e4b  gcc/co
*** 3948,3954 ****
  21c1c24d19668403ff77dc915a743342  gcc/config/rs6000/aix64.opt
  1088dba38de5967f615c2c010164ec48  gcc/config/rs6000/aix71.h
  40a704ae160673f3bb2db3e56ac529e6  gcc/config/rs6000/altivec.h
! 1ae5cce9f95be1f33759897a0e901575  gcc/config/rs6000/altivec.md
  ebb5e6bcfc1093c0aff7c41cd9353433  gcc/config/rs6000/biarch64.h
  936aede56563f66921091a90d3d1d56a  gcc/config/rs6000/cell.md
  3dc33891037141fa757d109f7826402a  gcc/config/rs6000/constraints.md
--- 3948,3954 ----
  21c1c24d19668403ff77dc915a743342  gcc/config/rs6000/aix64.opt
  1088dba38de5967f615c2c010164ec48  gcc/config/rs6000/aix71.h
  40a704ae160673f3bb2db3e56ac529e6  gcc/config/rs6000/altivec.h
! 78a51c868698225134d2ebc88614c05a  gcc/config/rs6000/altivec.md
  ebb5e6bcfc1093c0aff7c41cd9353433  gcc/config/rs6000/biarch64.h
  936aede56563f66921091a90d3d1d56a  gcc/config/rs6000/cell.md
  3dc33891037141fa757d109f7826402a  gcc/config/rs6000/constraints.md
*************** dbc5748d385f0a366a69b70e5f4b5200  gcc/co
*** 3994,4018 ****
  55af659a3619ef1966eece3320f3c9dd  gcc/config/rs6000/paired.md
  31242fa4ed8abafeba3b82a860474603  gcc/config/rs6000/power4.md
  44d38db73ba888118ad2e68d58f463c5  gcc/config/rs6000/power5.md
! 9c803622bb5146608fe9539f2af34f36  gcc/config/rs6000/power6.md
  392d61b850052a84dca819f18d09ec44  gcc/config/rs6000/power7.md
  d8b143420c8e25c7b2a8df221ae27589  gcc/config/rs6000/power8.md
  4c6843f36ebb8e0c06de737adda165b0  gcc/config/rs6000/power9.md
! c335f4f65801de1318cd4db8b62934ba  gcc/config/rs6000/ppc-asm.h
! ea4871edf7de554404015404bafd83e6  gcc/config/rs6000/ppc-auxv.h
  30884ec5924e409646acd1aa99423fc5  gcc/config/rs6000/ppu_intrinsics.h
  828b89834087bacd4af0af5e19a8e124  gcc/config/rs6000/predicates.md
! fed7519f3fb7d3f6e3b9e82dd640d7c0  gcc/config/rs6000/rs6000-builtin.def
! f51e3e86e1da29e05c4e6a034ff4be0f  gcc/config/rs6000/rs6000-c.c
  3e5ef6c30730e4575563890ec3cfe76b  gcc/config/rs6000/rs6000-cpus.def
  2f0d36a3bf95d74249364237cf04e29c  gcc/config/rs6000/rs6000-linux.c
  192ddf2c1b6fd7fe7e53b1acadaee645  gcc/config/rs6000/rs6000-modes.def
  14f48bec5cd76d2a5aada931fb1fedf4  gcc/config/rs6000/rs6000-opts.h
! f9e83e56b3fbfbefb1355ec6235ffa03  gcc/config/rs6000/rs6000-protos.h
  b43d18bcb08f2293531b3302947868a2  gcc/config/rs6000/rs6000-tables.opt
! c191d4c1f9f21dc772a9bb9d8894eb72  gcc/config/rs6000/rs6000.c
! 6df05e7ac31c6c722809b9fcbcc8019d  gcc/config/rs6000/rs6000.h
! ba680257efcdfe70886b6b5cb72436b7  gcc/config/rs6000/rs6000.md
  5ed93a7516e6be435e463755e04b6061  gcc/config/rs6000/rs6000.opt
  23eae5c1992970cba9db6c157ab8c4f6  gcc/config/rs6000/rs64.md
  089f55bc6e1565ba82f6d496569d3280  gcc/config/rs6000/rtems.h
--- 3994,4018 ----
  55af659a3619ef1966eece3320f3c9dd  gcc/config/rs6000/paired.md
  31242fa4ed8abafeba3b82a860474603  gcc/config/rs6000/power4.md
  44d38db73ba888118ad2e68d58f463c5  gcc/config/rs6000/power5.md
! ac00b2a4d4d16f95e56b587ea15a86b7  gcc/config/rs6000/power6.md
  392d61b850052a84dca819f18d09ec44  gcc/config/rs6000/power7.md
  d8b143420c8e25c7b2a8df221ae27589  gcc/config/rs6000/power8.md
  4c6843f36ebb8e0c06de737adda165b0  gcc/config/rs6000/power9.md
! eb715e9fb75f9462ddb30e3ae24b55bb  gcc/config/rs6000/ppc-asm.h
! c3b1acb71a25067c540d5aebe391ce90  gcc/config/rs6000/ppc-auxv.h
  30884ec5924e409646acd1aa99423fc5  gcc/config/rs6000/ppu_intrinsics.h
  828b89834087bacd4af0af5e19a8e124  gcc/config/rs6000/predicates.md
! 672a0e1376e716cefee4ebaf5388885c  gcc/config/rs6000/rs6000-builtin.def
! e9afdf01c9ad8ff8dccb8715d158930b  gcc/config/rs6000/rs6000-c.c
  3e5ef6c30730e4575563890ec3cfe76b  gcc/config/rs6000/rs6000-cpus.def
  2f0d36a3bf95d74249364237cf04e29c  gcc/config/rs6000/rs6000-linux.c
  192ddf2c1b6fd7fe7e53b1acadaee645  gcc/config/rs6000/rs6000-modes.def
  14f48bec5cd76d2a5aada931fb1fedf4  gcc/config/rs6000/rs6000-opts.h
! 99b138ff5f1ada7f6916e29cf72bad83  gcc/config/rs6000/rs6000-protos.h
  b43d18bcb08f2293531b3302947868a2  gcc/config/rs6000/rs6000-tables.opt
! 8ba267551b94aa62d41b652dc837ccde  gcc/config/rs6000/rs6000.c
! 2ccfda775584410d1a565c218f8517d0  gcc/config/rs6000/rs6000.h
! b4778c0e530440be8d7505fb882dd5f5  gcc/config/rs6000/rs6000.md
  5ed93a7516e6be435e463755e04b6061  gcc/config/rs6000/rs6000.opt
  23eae5c1992970cba9db6c157ab8c4f6  gcc/config/rs6000/rs64.md
  089f55bc6e1565ba82f6d496569d3280  gcc/config/rs6000/rtems.h
*************** d3e3ac831dff45625feb5c543903280d  gcc/co
*** 4023,4030 ****
  4916c7683b7e0a7036c40eb6d7ee92f0  gcc/config/rs6000/spe.md
  70e488f99d30586ce36bfe7b9dc08fec  gcc/config/rs6000/spu2vmx.h
  83969bf251c0226e69d361c5613a6841  gcc/config/rs6000/sync.md
! 056da47aa9e7eb07f8dea417fb567401  gcc/config/rs6000/sysv4.h
! 2913dacd00e26860f7ad46828646ca14  gcc/config/rs6000/sysv4.opt
  72d0179bc61a6d4aa963be895a0d6e5b  gcc/config/rs6000/sysv4le.h
  93056159fe947e9f851f95a932a97bfe  gcc/config/rs6000/t-aix43
  94b1fb2c409a1fd79d763d88470e7fbe  gcc/config/rs6000/t-aix52
--- 4023,4030 ----
  4916c7683b7e0a7036c40eb6d7ee92f0  gcc/config/rs6000/spe.md
  70e488f99d30586ce36bfe7b9dc08fec  gcc/config/rs6000/spu2vmx.h
  83969bf251c0226e69d361c5613a6841  gcc/config/rs6000/sync.md
! d33ce7627b36ff543791970756975add  gcc/config/rs6000/sysv4.h
! 7ff862fe7603b49799cd16f153b5f52d  gcc/config/rs6000/sysv4.opt
  72d0179bc61a6d4aa963be895a0d6e5b  gcc/config/rs6000/sysv4le.h
  93056159fe947e9f851f95a932a97bfe  gcc/config/rs6000/t-aix43
  94b1fb2c409a1fd79d763d88470e7fbe  gcc/config/rs6000/t-aix52
*************** bb61df2b42a69a90853a503710200de1  gcc/co
*** 4053,4059 ****
  cc22792d76d22d8203dc7c3680c1dbc7  gcc/config/rs6000/titan.md
  7369115a6bfe8259388f41e912c060f2  gcc/config/rs6000/vec_types.h
  1759069e8fe9a766cfc3af05e6e81d60  gcc/config/rs6000/vector.md
! 634a0dbc50271bc78481635e04c9fd66  gcc/config/rs6000/vsx.md
  4d14358837cff46d3efb3a12dfa4fb39  gcc/config/rs6000/vxworks.h
  724f6bc5a165006b67c0526f1bd7477f  gcc/config/rs6000/vxworksae.h
  d0482b801e0a94640973282cfb41b1a4  gcc/config/rs6000/vxworksmils.h
--- 4053,4059 ----
  cc22792d76d22d8203dc7c3680c1dbc7  gcc/config/rs6000/titan.md
  7369115a6bfe8259388f41e912c060f2  gcc/config/rs6000/vec_types.h
  1759069e8fe9a766cfc3af05e6e81d60  gcc/config/rs6000/vector.md
! 4f8df5fe0cc363019cd2629924b5aac7  gcc/config/rs6000/vsx.md
  4d14358837cff46d3efb3a12dfa4fb39  gcc/config/rs6000/vxworks.h
  724f6bc5a165006b67c0526f1bd7477f  gcc/config/rs6000/vxworksae.h
  d0482b801e0a94640973282cfb41b1a4  gcc/config/rs6000/vxworksmils.h
*************** c790d5db2363e84a0e5242fc59d7bfa8  gcc/co
*** 4091,4107 ****
  b01190302dd65005a5453ad68664db1b  gcc/config/s390/htmxlintrin.h
  47d5ce6a386e1360d108786a1f19bbf8  gcc/config/s390/linux.h
  477cdff999b906a8831b366900a5caf3  gcc/config/s390/predicates.md
! 4e530f6295bc670e161d242162d75382  gcc/config/s390/s390-builtin-types.def
! c8e73d03f4781078ea573b650e81efe5  gcc/config/s390/s390-builtins.def
  cdbb19c983c40cf5790b1b2abf44e198  gcc/config/s390/s390-builtins.h
  09b9646c4b74489a669f838e0441c455  gcc/config/s390/s390-c.c
  bfee65e53929ce9ab051be272eacf897  gcc/config/s390/s390-modes.def
! 9fbc56cdaa1a0bfa0e8af1c738f747cb  gcc/config/s390/s390-opts.h
! ec6ce661c7b87984fbda470242973d68  gcc/config/s390/s390-protos.h
! 7cb9d465c6015a1c57ed92006205bf5a  gcc/config/s390/s390.c
! 6128183534b6460c3504e49da918f124  gcc/config/s390/s390.h
! b37c746e1a3a9ceb59132ab22523a022  gcc/config/s390/s390.md
! 93ff0c316888e0ae1e6e5fcbb89614ea  gcc/config/s390/s390.opt
  b92144af9dcab9d6a6bd0a619e8bd90a  gcc/config/s390/s390intrin.h
  7182f5655f81cbe30f04b3209bb50a8c  gcc/config/s390/s390x.h
  6eacba8b7364ac819ef5bb26bc5a15f6  gcc/config/s390/subst.md
--- 4091,4107 ----
  b01190302dd65005a5453ad68664db1b  gcc/config/s390/htmxlintrin.h
  47d5ce6a386e1360d108786a1f19bbf8  gcc/config/s390/linux.h
  477cdff999b906a8831b366900a5caf3  gcc/config/s390/predicates.md
! 6ca03277097043c8fc797b682da51729  gcc/config/s390/s390-builtin-types.def
! 9a59936d928f2b626b3bc4a00e85be04  gcc/config/s390/s390-builtins.def
  cdbb19c983c40cf5790b1b2abf44e198  gcc/config/s390/s390-builtins.h
  09b9646c4b74489a669f838e0441c455  gcc/config/s390/s390-c.c
  bfee65e53929ce9ab051be272eacf897  gcc/config/s390/s390-modes.def
! 0ef804d3a49d85d249c0680b293e6ca6  gcc/config/s390/s390-opts.h
! 43c77b845b83c9d6d33fbff59caa4b39  gcc/config/s390/s390-protos.h
! b98406b07b123508c8f1ff8ed5709ba7  gcc/config/s390/s390.c
! 17f01e86cda145277017f88b7bc889a0  gcc/config/s390/s390.h
! 8cf6a56d5264686ad015fe60f6185756  gcc/config/s390/s390.md
! 81c69011ef1532549da2a2ddf3e9eff8  gcc/config/s390/s390.opt
  b92144af9dcab9d6a6bd0a619e8bd90a  gcc/config/s390/s390intrin.h
  7182f5655f81cbe30f04b3209bb50a8c  gcc/config/s390/s390x.h
  6eacba8b7364ac819ef5bb26bc5a15f6  gcc/config/s390/subst.md
*************** fdcdcfd6d75a8a7e4dd7e6245dd6b8ee  gcc/co
*** 4132,4138 ****
  1cfa80890e392ee02c7c4986557576ff  gcc/config/sh/sh-c.c
  5d938ac934cb36833039fe3687843800  gcc/config/sh/sh-mem.cc
  cdfcc021cc0d350940b97a6c3304dcad  gcc/config/sh/sh-modes.def
! 7bdff8ff4a4d9f7662770838132b2920  gcc/config/sh/sh-protos.h
  9d16ba0ae3846f52b1d00b4bb8e2206b  gcc/config/sh/sh.c
  2c5d1c53adcc1544d7cc2eef50d00e3f  gcc/config/sh/sh.h
  b890c2974b15bbf3217954d6682bb428  gcc/config/sh/sh.md
--- 4132,4138 ----
  1cfa80890e392ee02c7c4986557576ff  gcc/config/sh/sh-c.c
  5d938ac934cb36833039fe3687843800  gcc/config/sh/sh-mem.cc
  cdfcc021cc0d350940b97a6c3304dcad  gcc/config/sh/sh-modes.def
! e2d94de8956ea7bc425619f9eec5340e  gcc/config/sh/sh-protos.h
  9d16ba0ae3846f52b1d00b4bb8e2206b  gcc/config/sh/sh.c
  2c5d1c53adcc1544d7cc2eef50d00e3f  gcc/config/sh/sh.h
  b890c2974b15bbf3217954d6682bb428  gcc/config/sh/sh.md
*************** da4e950b2f04ffac1effe3bf45914f5a  gcc/co
*** 4142,4148 ****
  253ee1586ecd3d11d9f50f254c863ba5  gcc/config/sh/sh4.md
  097c9f2ac064bce3bdb0168a02f7ba29  gcc/config/sh/sh4a.md
  8f64d95045c83f64b39bb026e8b9f89d  gcc/config/sh/sh64.h
! 56cc4d6a091942bc6b61b5965fe3401a  gcc/config/sh/sh_optimize_sett_clrt.cc
  04eeac37483c290a8076fdaa1a92611d  gcc/config/sh/sh_treg_combine.cc
  82991561e2789c547a3f20b70956a7f7  gcc/config/sh/shmedia.h
  6c1b7dd8b94e3b39120afb709ee6a264  gcc/config/sh/shmedia.md
--- 4142,4148 ----
  253ee1586ecd3d11d9f50f254c863ba5  gcc/config/sh/sh4.md
  097c9f2ac064bce3bdb0168a02f7ba29  gcc/config/sh/sh4a.md
  8f64d95045c83f64b39bb026e8b9f89d  gcc/config/sh/sh64.h
! 1880e9c72e5a5a9f9b928cd9906fb692  gcc/config/sh/sh_optimize_sett_clrt.cc
  04eeac37483c290a8076fdaa1a92611d  gcc/config/sh/sh_treg_combine.cc
  82991561e2789c547a3f20b70956a7f7  gcc/config/sh/shmedia.h
  6c1b7dd8b94e3b39120afb709ee6a264  gcc/config/sh/shmedia.md
*************** b7d7076ce697ae031ce8e9044839e677  gcc/co
*** 4165,4171 ****
  326472ac115ba87710d1f807eab584cc  gcc/config/sol2-protos.h
  65c50e1aa6bd795f9df9bd2ef1499a85  gcc/config/sol2-stubs.c
  50d0e1f74af20704ea8538ac722dd6a1  gcc/config/sol2.c
! 1e8d4b79885734be9c787f523f909ce4  gcc/config/sol2.h
  7e0b8dc2440d33f9c2cd6000047ab554  gcc/config/sol2.opt
  1a1bce18811bf6992b747eeb61145cd9  gcc/config/sparc/biarch64.h
  cce52944785c3c1036a7380adda38c22  gcc/config/sparc/constraints.md
--- 4165,4171 ----
  326472ac115ba87710d1f807eab584cc  gcc/config/sol2-protos.h
  65c50e1aa6bd795f9df9bd2ef1499a85  gcc/config/sol2-stubs.c
  50d0e1f74af20704ea8538ac722dd6a1  gcc/config/sol2.c
! 85c26d673a904c93be27bfcb137116e7  gcc/config/sol2.h
  7e0b8dc2440d33f9c2cd6000047ab554  gcc/config/sol2.opt
  1a1bce18811bf6992b747eeb61145cd9  gcc/config/sparc/biarch64.h
  cce52944785c3c1036a7380adda38c22  gcc/config/sparc/constraints.md
*************** fdf6ab88ad0b4e36a3b8ebf25cfdd547  gcc/co
*** 4194,4202 ****
  6e05fd82c65a1c0b69f52820e4e2c82a  gcc/config/sparc/sparc-modes.def
  76ec8424fd03e5e3660223b5ca3cf59a  gcc/config/sparc/sparc-opts.h
  3b12f88afd2307417ea049e4a24a9bb8  gcc/config/sparc/sparc-protos.h
! 1b8bca8cb28391bd2dc5a646fb343873  gcc/config/sparc/sparc.c
  20571e7241f7186b57b57c936019c773  gcc/config/sparc/sparc.h
! dc707109b011b8adb0449ec59a2cfc0b  gcc/config/sparc/sparc.md
  18fcbfcaaf4ebb852311426ae9f8571d  gcc/config/sparc/sparc.opt
  9cb87fbe1c20a8991a89a8c2215a7c07  gcc/config/sparc/sparclet.md
  8fa2a5576a24f640750e744d90353334  gcc/config/sparc/supersparc.md
--- 4194,4202 ----
  6e05fd82c65a1c0b69f52820e4e2c82a  gcc/config/sparc/sparc-modes.def
  76ec8424fd03e5e3660223b5ca3cf59a  gcc/config/sparc/sparc-opts.h
  3b12f88afd2307417ea049e4a24a9bb8  gcc/config/sparc/sparc-protos.h
! 722474bd9446f727e357502f737e2b00  gcc/config/sparc/sparc.c
  20571e7241f7186b57b57c936019c773  gcc/config/sparc/sparc.h
! de4b5c0a36944d6533b15b4534bf2931  gcc/config/sparc/sparc.md
  18fcbfcaaf4ebb852311426ae9f8571d  gcc/config/sparc/sparc.opt
  9cb87fbe1c20a8991a89a8c2215a7c07  gcc/config/sparc/sparclet.md
  8fa2a5576a24f640750e744d90353334  gcc/config/sparc/supersparc.md
*************** ededba279c875242ed184a0ca6823677  gcc/co
*** 4376,4395 ****
  b38cc6421ca7d7c2df131805520197f8  gcc/config/xtensa/uclinux.h
  a09263d9768c434ff9da0afe8dd1f04e  gcc/config/xtensa/uclinux.opt
  5c6d44c80c62552399b15c7de3b52b12  gcc/config/xtensa/xtensa-protos.h
! fb4e09d2f31b041547273e997384947e  gcc/config/xtensa/xtensa.c
  5d2691d1b9c61c9889c1eb666127f253  gcc/config/xtensa/xtensa.h
! 8d5d03aedec908e97e57b62f2a511455  gcc/config/xtensa/xtensa.md
  6bc76a8cf807646d45ffd30b5ca7d2b2  gcc/config/xtensa/xtensa.opt
! f1745e8f62b23a8d906fccfb967039c1  gcc/configure
! 749fa2f7b91198a4b287baa858df40bd  gcc/configure.ac
  0ec5b41e50536d76b12ce8977926b0df  gcc/context.c
  26da2cb861339f31f80bd959e0d59598  gcc/context.h
! 378b0b907eabb610ce310db8a7efa63c  gcc/convert.c
  d84bc78e8cfdc1b1e4930926711d56d8  gcc/convert.h
  d80857164629763d35964508054ddcda  gcc/coretypes.h
  a366efd2bb8ae44b8d5993f357bcccd1  gcc/coverage.c
  d2e9bad038f8b277c681b8095db51116  gcc/coverage.h
! 66c2d66748cb0236cab4f6b5c2fd2cb6  gcc/cp/ChangeLog
  d271e3663538ba1f3281cab3838e92cd  gcc/cp/ChangeLog-1993
  f5a44adbc05521162350ca409d1d95ce  gcc/cp/ChangeLog-1994
  ac55db48d964cb5469ff03c1cd3ee04d  gcc/cp/ChangeLog-1995
--- 4376,4395 ----
  b38cc6421ca7d7c2df131805520197f8  gcc/config/xtensa/uclinux.h
  a09263d9768c434ff9da0afe8dd1f04e  gcc/config/xtensa/uclinux.opt
  5c6d44c80c62552399b15c7de3b52b12  gcc/config/xtensa/xtensa-protos.h
! cd85e791bcb2f217deefedaa863b5dc3  gcc/config/xtensa/xtensa.c
  5d2691d1b9c61c9889c1eb666127f253  gcc/config/xtensa/xtensa.h
! 7ff1d8e320fbf090f4e7a81ba2402d94  gcc/config/xtensa/xtensa.md
  6bc76a8cf807646d45ffd30b5ca7d2b2  gcc/config/xtensa/xtensa.opt
! 7dd6d6236294d42b6885c857047d3691  gcc/configure
! e017e08583b5da0548d5bbef42333f11  gcc/configure.ac
  0ec5b41e50536d76b12ce8977926b0df  gcc/context.c
  26da2cb861339f31f80bd959e0d59598  gcc/context.h
! 8c678b50ac5908dde1132333b6d9712b  gcc/convert.c
  d84bc78e8cfdc1b1e4930926711d56d8  gcc/convert.h
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  a366efd2bb8ae44b8d5993f357bcccd1  gcc/coverage.c
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! 4825c57b9a2c3fbca61e51976a845676  gcc/cp/ChangeLog
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  f5a44adbc05521162350ca409d1d95ce  gcc/cp/ChangeLog-1994
  ac55db48d964cb5469ff03c1cd3ee04d  gcc/cp/ChangeLog-1995
*************** c1c7801b9b0f379e702a4f6cb83972e7  gcc/cp
*** 4417,4444 ****
  9aa3cd9f75c785de9f51446e3f295515  gcc/cp/ChangeLog.tree-ssa
  40c026d4c25f7d1b05e9209c1db5fce9  gcc/cp/Make-lang.in
  9bc6241e715c32f1a0f6e1b8028cb853  gcc/cp/NEWS
! e67e77bae1060a2afeab6bd53770bbd9  gcc/cp/call.c
  afb9bd2c59a27b9a4e01674e6ef4c2d2  gcc/cp/cfns.gperf
  4dc84f7aecf8adaa3133cffb6b7a9ca6  gcc/cp/cfns.h
! a28fc7e2b78b20cb8c087c6ba932f29f  gcc/cp/class.c
  739c569e48a7b41b606f425cbc9123d2  gcc/cp/config-lang.in
! 0791a4cecc5a38db4e687fa23e963cc6  gcc/cp/constexpr.c
  c683759a418cb72958ad21fa84df0a0e  gcc/cp/constraint.cc
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*** 4600,4614 ****
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! 44115f67c819a34fef8cd488eda1ef50  gcc/dse.c
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! 07467e53d8d2dd27f0b59fe696a8fcdf  gcc/emit-rtl.c
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--- 4600,4614 ----
  28fa495d546dae9ae91b611d681f92b4  gcc/domwalk.h
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  0d1118347f651ce001028c67a463ec5f  gcc/dumpfile.h
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  8b34c3660aa997b685d65ad9a84e597b  gcc/dwarf2cfi.c
! 49096ee4a9afa2978f95ad6d51ddf2b9  gcc/dwarf2out.c
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! ca1ee26e465b41695d03b1684de775df  gcc/emit-rtl.c
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*************** f5abf6d0cbb2a449ebbffae39c0db258  gcc/ex
*** 4619,4641 ****
  efb926b924a2b56981b4a714c04ce6de  gcc/exec-tool.in
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! e0a2e47206a445e3d5245a8436fcac1b  gcc/expmed.c
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! d26a448a2795988c4e39e266bc4773c8  gcc/final.c
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! bd3f8d653921cfb27feb0913b011b4c9  gcc/fold-const.c
! b6b5bb4a4f17604d5bcfb47ecba0768c  gcc/fold-const.h
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--- 4619,4641 ----
  efb926b924a2b56981b4a714c04ce6de  gcc/exec-tool.in
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  11b86e7523d07214d26758d1df794788  gcc/file-find.h
! 4f456c4e1915122c7498c5a296804f76  gcc/final.c
  886a77bbc9fdc2b40139a3e0108b9c26  gcc/fixed-value.c
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  f4d19b0528d646f769792430919be6ff  gcc/fold-const-call.h
! 97cc7e26ec080ad5e53a6ade48672fa6  gcc/fold-const.c
! 00ae128f39123bddf051ac89037dc526  gcc/fold-const.h
! 687c93909174a2c705d6edae9b8b40db  gcc/fortran/ChangeLog
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  bf42f94f0c51dcc7d8051cc7fda1efdc  gcc/fortran/ChangeLog-2004
*************** b378eb9df97ed252ce2624646d05df15  gcc/fo
*** 4652,4662 ****
  a71efd3e199a80ee07c7f350cc8fcf91  gcc/fortran/ChangeLog-2015
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  be4956add3a0a52371db809732688221  gcc/fortran/Make-lang.in
! 0048f3c5c0f8dd97bc591db126d5b0d8  gcc/fortran/arith.c
  7c9d0f5b639be38a283363657ac1f70c  gcc/fortran/arith.h
! 6c69c97bb68fff84c319bda150d48fa5  gcc/fortran/array.c
  c9fae371f8d0a027b1391ff1d82faaa8  gcc/fortran/bbt.c
! bdfc35cb00eff4244760acd86c99b4fc  gcc/fortran/check.c
  f44a013471446c64ac719650e6aad482  gcc/fortran/class.c
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  1564600ca4ee09dae677a32e9632817c  gcc/fortran/constructor.c
--- 4652,4662 ----
  a71efd3e199a80ee07c7f350cc8fcf91  gcc/fortran/ChangeLog-2015
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! 90e26d2ba440d8bf2b38cd54a447f9fc  gcc/fortran/array.c
  c9fae371f8d0a027b1391ff1d82faaa8  gcc/fortran/bbt.c
! 17c2b70ab1957eb76c24789ffaa555a3  gcc/fortran/check.c
  f44a013471446c64ac719650e6aad482  gcc/fortran/class.c
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  1564600ca4ee09dae677a32e9632817c  gcc/fortran/constructor.c
*************** f44a013471446c64ac719650e6aad482  gcc/fo
*** 4664,4686 ****
  8deb30f7c8c40a20cd65bcfca332c0f5  gcc/fortran/convert.c
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! f519487227b89f7bf81fefec0890b646  gcc/fortran/interface.c
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--- 4664,4686 ----
  8deb30f7c8c40a20cd65bcfca332c0f5  gcc/fortran/convert.c
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*************** c0cd4b25b09215a792a381b8685eaabb  gcc/fo
*** 4693,4736 ****
  278f6140c8d0ffbc2aa9d5f5fe6915f5  gcc/fortran/lang-specs.h
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! 59266df0f9dea339a057f44b1bfd82d2  gcc/fortran/parse.c
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  82b8673b874f75d8200f4128222beeee  gcc/fortran/trans-types.h
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  e02967179fdfb529c8aff94baaf469c2  gcc/fp-test.c
! 858bb03b609b117dfa5a1e8407306754  gcc/function.c
  17cb1003d8ab8c1905fd3d57d38144b4  gcc/function.h
  497184e6dc781c16b3012d224ab58dd0  gcc/fwprop.c
  51d4643fae226ae5cb6c726118db12a3  gcc/gcc-ar.c
--- 4693,4736 ----
  278f6140c8d0ffbc2aa9d5f5fe6915f5  gcc/fortran/lang-specs.h
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! c2956ffcffd2013469cef1ca7131b912  gcc/fortran/match.c
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  e91ec831c84ed9fa96a1533122ba5461  gcc/fortran/mathbuiltins.def
  0b73aa1351022bc9b69b35d237f97d12  gcc/fortran/misc.c
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  9e2b180b0a084bc679183d6d796b763a  gcc/fortran/symbol.c
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! 4eb9054ddd51511166515c89a73ec530  gcc/fortran/trans-array.c
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  2ff797b2faf1df38554b343b691f0019  gcc/fortran/trans-common.c
  7ca10244eca4229e1c832b3c393d9a24  gcc/fortran/trans-const.c
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! 08e38997c8e15e9166f001335e7a67ce  gcc/fortran/trans-intrinsic.c
! e7e75b143fb372a6940883a418f1d71c  gcc/fortran/trans-io.c
! f4fd5eb08bfba4c024f11310fcb8563e  gcc/fortran/trans-openmp.c
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  bd26fd364f82b04b35ca797f1500c5cd  gcc/fortran/trans-stmt.h
! 11f9992af1a47feac47773db8e14d735  gcc/fortran/trans-types.c
  82b8673b874f75d8200f4128222beeee  gcc/fortran/trans-types.h
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  ce4ba327ea19d94b982917bf5b2884d4  gcc/fortran/types.def
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  17cb1003d8ab8c1905fd3d57d38144b4  gcc/function.h
  497184e6dc781c16b3012d224ab58dd0  gcc/fwprop.c
  51d4643fae226ae5cb6c726118db12a3  gcc/gcc-ar.c
*************** b4465d909a319a9a76bf72f7bbf227d1  gcc/gc
*** 4739,4745 ****
  22091c79c390a71cf211f90328383954  gcc/gcc-rich-location.c
  6ab0670ac8edcc1a6f5cd76e7e47a982  gcc/gcc-rich-location.h
  3ec648b31caf0bcc6b2062384510367b  gcc/gcc-symtab.h
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  8a5a93ab3252c5ded6be74e451700891  gcc/gcc.h
  1bf3695cc620fbe4091e454d41be48a5  gcc/gcov-counter.def
  c67781f214a5a3212bd9e68127a31237  gcc/gcov-dump.c
--- 4739,4745 ----
  22091c79c390a71cf211f90328383954  gcc/gcc-rich-location.c
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  3ec648b31caf0bcc6b2062384510367b  gcc/gcc-symtab.h
! eab9f1b57ad88c920f579e37d954ae1f  gcc/gcc.c
  8a5a93ab3252c5ded6be74e451700891  gcc/gcc.h
  1bf3695cc620fbe4091e454d41be48a5  gcc/gcov-counter.def
  c67781f214a5a3212bd9e68127a31237  gcc/gcov-dump.c
*************** ec7357ffd25aa42099050656cdd923f3  gcc/ge
*** 4774,4787 ****
  25b1b08c7f2e15a61f67137a395f2be5  gcc/genextract.c
  282f3c7433a024d985ddccc10c82d417  gcc/genflags.c
  d44b194500c23b5c542dbac2c46abcec  gcc/gengenrtl.c
! 649471ecc328d1da2e0219201ec56d32  gcc/gengtype-lex.c
  5a1368b972210328f48b0ea87a7191c1  gcc/gengtype-lex.l
  ff52666a6b0aebb48f2a4f746fe39b50  gcc/gengtype-parse.c
  0151a4b7715cf1cb836ee33cf7bfdf27  gcc/gengtype-state.c
  db2e5a3681b97d90acccf90143063e63  gcc/gengtype.c
  43fa66a1baf8052c56056203218486bb  gcc/gengtype.h
  79b33f0c8ac99ccfc71dcdf3e27ee2bf  gcc/genhooks.c
! 4c7f0c4164550ceb05044d5c2c3ce324  gcc/genmatch.c
  07b0962a5b0ac2a5f29d44d710ce1ea7  gcc/genmddeps.c
  43130364faec8aac159d938938a22fad  gcc/genmddump.c
  7c6aaaace1e7de1494b16ba3c1abbdb0  gcc/genmodes.c
--- 4774,4787 ----
  25b1b08c7f2e15a61f67137a395f2be5  gcc/genextract.c
  282f3c7433a024d985ddccc10c82d417  gcc/genflags.c
  d44b194500c23b5c542dbac2c46abcec  gcc/gengenrtl.c
! 0486cd497ece18c6f1de2997e89ed234  gcc/gengtype-lex.c
  5a1368b972210328f48b0ea87a7191c1  gcc/gengtype-lex.l
  ff52666a6b0aebb48f2a4f746fe39b50  gcc/gengtype-parse.c
  0151a4b7715cf1cb836ee33cf7bfdf27  gcc/gengtype-state.c
  db2e5a3681b97d90acccf90143063e63  gcc/gengtype.c
  43fa66a1baf8052c56056203218486bb  gcc/gengtype.h
  79b33f0c8ac99ccfc71dcdf3e27ee2bf  gcc/genhooks.c
! e649f8e2aa84c0e820357971fb42c6a7  gcc/genmatch.c
  07b0962a5b0ac2a5f29d44d710ce1ea7  gcc/genmddeps.c
  43130364faec8aac159d938938a22fad  gcc/genmddump.c
  7c6aaaace1e7de1494b16ba3c1abbdb0  gcc/genmodes.c
*************** aebbd535535012ebd55416efcaf61129  gcc/ge
*** 4797,4803 ****
  7c2a3d4b8480ab4110abe59dcbf5e036  gcc/ggc-common.c
  d02355424c03ecf19c6b3f761cd634b4  gcc/ggc-internal.h
  40f2e324af30c9aba96222c328dd3545  gcc/ggc-none.c
! 76134e1edb1a23ba940952a70c3e15ab  gcc/ggc-page.c
  f27627de4e242103ec999d1ed5e0069e  gcc/ggc.h
  4812f02602614fff1a97ea875ec99db7  gcc/gimple-builder.c
  18fb4705ad51bdf06734fbcfc8e39d64  gcc/gimple-builder.h
--- 4797,4803 ----
  7c2a3d4b8480ab4110abe59dcbf5e036  gcc/ggc-common.c
  d02355424c03ecf19c6b3f761cd634b4  gcc/ggc-internal.h
  40f2e324af30c9aba96222c328dd3545  gcc/ggc-none.c
! 62bf4fc9cd2a5dea9d7567ccb0b81b88  gcc/ggc-page.c
  f27627de4e242103ec999d1ed5e0069e  gcc/ggc.h
  4812f02602614fff1a97ea875ec99db7  gcc/gimple-builder.c
  18fb4705ad51bdf06734fbcfc8e39d64  gcc/gimple-builder.h
*************** efd0e45c5f633c150550050337d54cd2  gcc/gi
*** 4815,4825 ****
  cfa0970bff5507e4597bf5f59b1bc16b  gcc/gimple-predict.h
  71b0fde9b67c7adcb381a8bf911afdf3  gcc/gimple-pretty-print.c
  49ef1f20477bcf14afbd8ad6e881de3b  gcc/gimple-pretty-print.h
! f80b61599458d3f74e41db11b0a61f64  gcc/gimple-ssa-backprop.c
  c791c05cc355c359113eed04641888e6  gcc/gimple-ssa-isolate-paths.c
  2b635d43814bc633cecdcc760286e63f  gcc/gimple-ssa-nonnull-compare.c
  42ffa3dae92978558f07df7f9f6b832f  gcc/gimple-ssa-split-paths.c
! bd0151d8bab44238d77b9e6e8cfbb52a  gcc/gimple-ssa-strength-reduction.c
  8e9e70f7beb2c17666e38df009313d69  gcc/gimple-ssa.h
  c6406313fb24ec56d6a71e73606ac882  gcc/gimple-streamer-in.c
  943285f15b2dd2f069d86e274616baf4  gcc/gimple-streamer-out.c
--- 4815,4825 ----
  cfa0970bff5507e4597bf5f59b1bc16b  gcc/gimple-predict.h
  71b0fde9b67c7adcb381a8bf911afdf3  gcc/gimple-pretty-print.c
  49ef1f20477bcf14afbd8ad6e881de3b  gcc/gimple-pretty-print.h
! 0c712e7d72089e6896fb4f496b6d04d1  gcc/gimple-ssa-backprop.c
  c791c05cc355c359113eed04641888e6  gcc/gimple-ssa-isolate-paths.c
  2b635d43814bc633cecdcc760286e63f  gcc/gimple-ssa-nonnull-compare.c
  42ffa3dae92978558f07df7f9f6b832f  gcc/gimple-ssa-split-paths.c
! c0038e74a804aefc8f5c530d15ac3000  gcc/gimple-ssa-strength-reduction.c
  8e9e70f7beb2c17666e38df009313d69  gcc/gimple-ssa.h
  c6406313fb24ec56d6a71e73606ac882  gcc/gimple-streamer-in.c
  943285f15b2dd2f069d86e274616baf4  gcc/gimple-streamer-out.c
*************** a2785905366f09f1f079433963ea1253  gcc/gi
*** 4831,4837 ****
  641cc4b975ba19a5b0e628733901c0cd  gcc/gimple.h
  e679c1b4ca7b2361262d0c6fa84805d2  gcc/gimplify-me.c
  16af853ca2f3e873e723eb5ff29a8168  gcc/gimplify-me.h
! 626a18c8582070a93687c2468779ca3a  gcc/gimplify.c
  89047a7045c4653b6016516742695593  gcc/gimplify.h
  f8d3ba18b33f417a9767d330d93c0783  gcc/ginclude/float.h
  619900a9f2191899ea818da9819f1182  gcc/ginclude/iso646.h
--- 4831,4837 ----
  641cc4b975ba19a5b0e628733901c0cd  gcc/gimple.h
  e679c1b4ca7b2361262d0c6fa84805d2  gcc/gimplify-me.c
  16af853ca2f3e873e723eb5ff29a8168  gcc/gimplify-me.h
! f8b85375305be25c11e87e4fede51865  gcc/gimplify.c
  89047a7045c4653b6016516742695593  gcc/gimplify.h
  f8d3ba18b33f417a9767d330d93c0783  gcc/ginclude/float.h
  619900a9f2191899ea818da9819f1182  gcc/ginclude/iso646.h
*************** f85aa0745c3e9e0d32fa64753089b2f1  gcc/gi
*** 4848,4854 ****
  0084f5d38807d071ff480eae89712f6f  gcc/ginclude/unwind-arm-common.h
  8d9ecf0d6ef93c79623ce1d27a32a2cb  gcc/ginclude/varargs.h
  b54c253a51ca26084af892b1075aca95  gcc/glimits.h
! 40a75dbd5fbf04055c856ffe5278d121  gcc/go/ChangeLog
  c17df7037dd63662580cbdd99682dfcb  gcc/go/Make-lang.in
  60ea054548c83c7f66170073f9f3e74c  gcc/go/README.gcc
  8f67504370310cab25d2ff85696d5827  gcc/go/config-lang.in
--- 4848,4854 ----
  0084f5d38807d071ff480eae89712f6f  gcc/ginclude/unwind-arm-common.h
  8d9ecf0d6ef93c79623ce1d27a32a2cb  gcc/ginclude/varargs.h
  b54c253a51ca26084af892b1075aca95  gcc/glimits.h
! fb3e3a68153b106db9dc2355f0032f09  gcc/go/ChangeLog
  c17df7037dd63662580cbdd99682dfcb  gcc/go/Make-lang.in
  60ea054548c83c7f66170073f9f3e74c  gcc/go/README.gcc
  8f67504370310cab25d2ff85696d5827  gcc/go/config-lang.in
*************** d7586bd35c3d11933ceb61445987b1be  gcc/gr
*** 4915,4921 ****
  24daa11affe5e0abe5075891a94d0200  gcc/graphite-scop-detection.c
  32d776f13b8baaf8bbdbe2e053b48779  gcc/graphite-sese-to-poly.c
  5b53b1f39257a74d35d74267a10667d2  gcc/graphite.c
! e2a89ed2d54d88eb79e9c45ac760ba2d  gcc/graphite.h
  78929a7471f65e2cc719f6ceecc9783e  gcc/gsstruct.def
  a73b1a9b6e15c98b03838fc79226b4c7  gcc/gstab.h
  c8a72a49cfe1600f49ac07a3c16129bb  gcc/gsyms.h
--- 4915,4921 ----
  24daa11affe5e0abe5075891a94d0200  gcc/graphite-scop-detection.c
  32d776f13b8baaf8bbdbe2e053b48779  gcc/graphite-sese-to-poly.c
  5b53b1f39257a74d35d74267a10667d2  gcc/graphite.c
! 5f14dea99ceef8b512bff4cb80f533f2  gcc/graphite.h
  78929a7471f65e2cc719f6ceecc9783e  gcc/gsstruct.def
  a73b1a9b6e15c98b03838fc79226b4c7  gcc/gstab.h
  c8a72a49cfe1600f49ac07a3c16129bb  gcc/gsyms.h
*************** f222b641f4f2e83a08d6b698af52bf0c  gcc/ho
*** 4936,4942 ****
  13d031cffe548c9182d527e4574684c8  gcc/hosthooks-def.h
  cce2f2f101e23d7224a4abfa905906f7  gcc/hosthooks.h
  3b0d55aa66be65dbe57933c94fa21773  gcc/hsa-brig-format.h
! 68951ed27601fde925296e7050c19b08  gcc/hsa-brig.c
  3b45b6386324afbef0330d9d8cdbc09d  gcc/hsa-dump.c
  cbd0b5366af70ed50a5aa9583995daed  gcc/hsa-gen.c
  74ffebc0a61f0ac8bd7a90c8454cdc14  gcc/hsa-regalloc.c
--- 4936,4942 ----
  13d031cffe548c9182d527e4574684c8  gcc/hosthooks-def.h
  cce2f2f101e23d7224a4abfa905906f7  gcc/hosthooks.h
  3b0d55aa66be65dbe57933c94fa21773  gcc/hsa-brig-format.h
! e25466b1fa74e83c795779c18fdd850b  gcc/hsa-brig.c
  3b45b6386324afbef0330d9d8cdbc09d  gcc/hsa-dump.c
  cbd0b5366af70ed50a5aa9583995daed  gcc/hsa-gen.c
  74ffebc0a61f0ac8bd7a90c8454cdc14  gcc/hsa-regalloc.c
*************** e13e5df371956a53173b7fb59f95b1d5  gcc/hs
*** 4945,4951 ****
  8993464e6b817f2c2a9ad82be9baed12  gcc/hw-doloop.c
  a19262cccabe1f6d45f70f8e20e99879  gcc/hw-doloop.h
  5cd7b30cf3f7586747a951525309452b  gcc/hwint.c
! feb5c180cbcd7f8bdd96be35471de9e0  gcc/hwint.h
  59d7c610bb1e6466a908486f24737cd8  gcc/ifcvt.c
  4cd32b9658d42cdd299f4104c6ec95b0  gcc/ifcvt.h
  cadafdfaf3c41b642571d67f6d34d684  gcc/inchash.c
--- 4945,4951 ----
  8993464e6b817f2c2a9ad82be9baed12  gcc/hw-doloop.c
  a19262cccabe1f6d45f70f8e20e99879  gcc/hw-doloop.h
  5cd7b30cf3f7586747a951525309452b  gcc/hwint.c
! 28e50fd096ee5fe9eaacba66ec24cdfb  gcc/hwint.h
  59d7c610bb1e6466a908486f24737cd8  gcc/ifcvt.c
  4cd32b9658d42cdd299f4104c6ec95b0  gcc/ifcvt.h
  cadafdfaf3c41b642571d67f6d34d684  gcc/inchash.c
*************** e58d1c401a7593922b73a20746f8ffb8  gcc/in
*** 4957,4963 ****
  175904f3b9bf34ab0110539281d28c85  gcc/input.h
  9660f1e74083fc135ca89befb999845b  gcc/insn-addr.h
  90dd0b46cd7663ba2931f2dc558feb26  gcc/insn-notes.def
! 3e9015bfabd48231979750202f99332a  gcc/internal-fn.c
  8c2c2046c13cb04e77d871bf9e264fe0  gcc/internal-fn.def
  f6eb1829b56b52c1a98e463764f15bb2  gcc/internal-fn.h
  fdde96aa99d01f4a2e122427c73416e1  gcc/intl.c
--- 4957,4963 ----
  175904f3b9bf34ab0110539281d28c85  gcc/input.h
  9660f1e74083fc135ca89befb999845b  gcc/insn-addr.h
  90dd0b46cd7663ba2931f2dc558feb26  gcc/insn-notes.def
! 065f61472a10909d2bcd0e920c2a2582  gcc/internal-fn.c
  8c2c2046c13cb04e77d871bf9e264fe0  gcc/internal-fn.def
  f6eb1829b56b52c1a98e463764f15bb2  gcc/internal-fn.h
  fdde96aa99d01f4a2e122427c73416e1  gcc/intl.c
*************** fdde96aa99d01f4a2e122427c73416e1  gcc/in
*** 4965,4980 ****
  26faa305263ec4b39061a74359f92d08  gcc/ipa-chkp.c
  0c2184ed06610d2b6afe4b6f4d417dbe  gcc/ipa-chkp.h
  c8fc9c40a8c111733a2e9563789133c3  gcc/ipa-comdats.c
! d18651f25a52a6e5c2de783bb6b5fdb8  gcc/ipa-cp.c
! ee752d58a5c16d0db5a6fc4b44b765ca  gcc/ipa-devirt.c
  09da3707dcc58023f746ab4e5fabd815  gcc/ipa-hsa.c
! 8cbeebf152275e9611ce91064d1006f3  gcc/ipa-icf-gimple.c
! 455a02b19595e17d311284b20cd9946f  gcc/ipa-icf-gimple.h
! 656649a92c699b991ad734d5d4d4e64e  gcc/ipa-icf.c
  3845e71367066e50a9ccb88e87633748  gcc/ipa-icf.h
  a218a778bd374b99f367df36983a2e05  gcc/ipa-inline-analysis.c
  a9eff32f514d9abe395b1c13b615aee5  gcc/ipa-inline-transform.c
! 6ffb5637e26835334d307237572a86d3  gcc/ipa-inline.c
  5b9e28f57d5dcf8db033236d6d5ff9d7  gcc/ipa-inline.h
  d12277093a8d08b8750ecd9ef6d26f73  gcc/ipa-polymorphic-call.c
  dd94f55f59c59919fcfe73719b53804c  gcc/ipa-profile.c
--- 4965,4980 ----
  26faa305263ec4b39061a74359f92d08  gcc/ipa-chkp.c
  0c2184ed06610d2b6afe4b6f4d417dbe  gcc/ipa-chkp.h
  c8fc9c40a8c111733a2e9563789133c3  gcc/ipa-comdats.c
! ef9ca0589d70a29d1fb8e1d537ca218c  gcc/ipa-cp.c
! 2fe3341a60a79e740627cad7f12a8518  gcc/ipa-devirt.c
  09da3707dcc58023f746ab4e5fabd815  gcc/ipa-hsa.c
! f4d3d88267f657919c0734398a6fc499  gcc/ipa-icf-gimple.c
! da2a18906975772f44e6dd4461a5e39a  gcc/ipa-icf-gimple.h
! 05789d1dfd241217a5a3ec720a94690c  gcc/ipa-icf.c
  3845e71367066e50a9ccb88e87633748  gcc/ipa-icf.h
  a218a778bd374b99f367df36983a2e05  gcc/ipa-inline-analysis.c
  a9eff32f514d9abe395b1c13b615aee5  gcc/ipa-inline-transform.c
! 55e982eaa25254ccdbafdee2373a3035  gcc/ipa-inline.c
  5b9e28f57d5dcf8db033236d6d5ff9d7  gcc/ipa-inline.h
  d12277093a8d08b8750ecd9ef6d26f73  gcc/ipa-polymorphic-call.c
  dd94f55f59c59919fcfe73719b53804c  gcc/ipa-profile.c
*************** ef575b78ba6545da9a738bb6492ffaea  gcc/ip
*** 4986,4994 ****
  03c13844b2253af7baa44eabf818c3d0  gcc/ipa-reference.c
  4d96038c87fe5da9b9b5b703221330f4  gcc/ipa-reference.h
  4b2e0fdfbd44dd085d645754144f679d  gcc/ipa-split.c
! ed182ec474e37f10686adf168a899e01  gcc/ipa-utils.c
  d01eb784d4a63008ba2460c3b47972b2  gcc/ipa-utils.h
! e8d8e427380a4bd39ba323b887a4bca9  gcc/ipa-visibility.c
  f5194dfc342426fb120aa6ef0dac2984  gcc/ipa.c
  d40b36379402518db3bf0d60d97b5b55  gcc/ira-build.c
  964fe62f78d9da617c7eb903c20eb3da  gcc/ira-color.c
--- 4986,4994 ----
  03c13844b2253af7baa44eabf818c3d0  gcc/ipa-reference.c
  4d96038c87fe5da9b9b5b703221330f4  gcc/ipa-reference.h
  4b2e0fdfbd44dd085d645754144f679d  gcc/ipa-split.c
! e55f4c24eecee3d774c754ebd4588707  gcc/ipa-utils.c
  d01eb784d4a63008ba2460c3b47972b2  gcc/ipa-utils.h
! ce7775db6002bbfb897c4f236fc296d4  gcc/ipa-visibility.c
  f5194dfc342426fb120aa6ef0dac2984  gcc/ipa.c
  d40b36379402518db3bf0d60d97b5b55  gcc/ira-build.c
  964fe62f78d9da617c7eb903c20eb3da  gcc/ira-color.c
*************** e983cefc45ef903cf9ff61d0968b3bab  gcc/ir
*** 4997,5006 ****
  ebfd92168b72929f96260301cb580262  gcc/ira-emit.c
  83ec3a50387f61edbea5374a533f3d91  gcc/ira-int.h
  a08f51632a3451b17596365fab878fae  gcc/ira-lives.c
! 19f6e39fbb14bd42ec74540f3b5904c8  gcc/ira.c
  74580aa160542aa4992d6a08ca5bc8f2  gcc/ira.h
! 31f4d25e8f125875a26ac35cbc927cb8  gcc/is-a.h
! f8bc828c6d7857779b6c652db22996dd  gcc/java/ChangeLog
  507793f7d137759eaebce11bb6904781  gcc/java/ChangeLog.gimple-classes
  c52fb3faa0748d26588a8c62e7a032e3  gcc/java/ChangeLog.jit
  3becfaac793f49e1f52cd74e78172b48  gcc/java/ChangeLog.ptr
--- 4997,5006 ----
  ebfd92168b72929f96260301cb580262  gcc/ira-emit.c
  83ec3a50387f61edbea5374a533f3d91  gcc/ira-int.h
  a08f51632a3451b17596365fab878fae  gcc/ira-lives.c
! 825faf1baae78568237754a3dcf37446  gcc/ira.c
  74580aa160542aa4992d6a08ca5bc8f2  gcc/ira.h
! e2d8b3a8ce5103d359375c128808a388  gcc/is-a.h
! 16f9b29b482437b482fae32100932f3f  gcc/java/ChangeLog
  507793f7d137759eaebce11bb6904781  gcc/java/ChangeLog.gimple-classes
  c52fb3faa0748d26588a8c62e7a032e3  gcc/java/ChangeLog.jit
  3becfaac793f49e1f52cd74e78172b48  gcc/java/ChangeLog.ptr
*************** f7682b6af1012b5e80ec7ad2afbc0c7b  gcc/ja
*** 5045,5051 ****
  d0022673f3c1d3b88ec58af0afae3a10  gcc/java/win32-host.c
  f3b9d6331e08c7be4b0c454896354320  gcc/java/zextract.c
  c5cc3108cb4c92253001c801b4323c72  gcc/java/zipfile.h
! 15c9d4d7632eee5413a7522b9a1f0c72  gcc/jit/ChangeLog
  6071bdf04fb356c5ac99a99ec00c9a12  gcc/jit/ChangeLog.jit
  c901faa33fe9e228daf4730cebf58493  gcc/jit/Make-lang.in
  fd0d76b6467c987f813d430a35d4760a  gcc/jit/TODO.rst
--- 5045,5051 ----
  d0022673f3c1d3b88ec58af0afae3a10  gcc/java/win32-host.c
  f3b9d6331e08c7be4b0c454896354320  gcc/java/zextract.c
  c5cc3108cb4c92253001c801b4323c72  gcc/java/zipfile.h
! b9fd0a153661ad1e84cef7bd61732c36  gcc/jit/ChangeLog
  6071bdf04fb356c5ac99a99ec00c9a12  gcc/jit/ChangeLog.jit
  c901faa33fe9e228daf4730cebf58493  gcc/jit/Make-lang.in
  fd0d76b6467c987f813d430a35d4760a  gcc/jit/TODO.rst
*************** cb1bb960c49fd7c94335215ecb38e0d9  gcc/li
*** 5141,5149 ****
  2a5aa60c754420a976b7691a7b112e09  gcc/loop-init.c
  30c39c53d73587261d4b4c669d1c8af0  gcc/loop-invariant.c
  389e5eba1fed82f05263da501c5a322c  gcc/loop-iv.c
! d2dfe305d98199fd855b3c272a6b5817  gcc/loop-unroll.c
  17b610101248e43ee0bc574f5bc4fb51  gcc/loop-unroll.h
! 9eb15aabf5ff72f3375ad3db10905a7d  gcc/lower-subreg.c
  180085424a33f9c10cbfbec3cb93efc9  gcc/lower-subreg.h
  94dc02fec35d26d77004b2381d03cecc  gcc/lra-assigns.c
  f4d829a6683fedfefe62a3e3ac43b786  gcc/lra-coalesce.c
--- 5141,5149 ----
  2a5aa60c754420a976b7691a7b112e09  gcc/loop-init.c
  30c39c53d73587261d4b4c669d1c8af0  gcc/loop-invariant.c
  389e5eba1fed82f05263da501c5a322c  gcc/loop-iv.c
! 5f23295b8fa6496ae0162d32ee117a57  gcc/loop-unroll.c
  17b610101248e43ee0bc574f5bc4fb51  gcc/loop-unroll.h
! 4c2eea5518a83297a7cdea927b7a32ff  gcc/lower-subreg.c
  180085424a33f9c10cbfbec3cb93efc9  gcc/lower-subreg.h
  94dc02fec35d26d77004b2381d03cecc  gcc/lra-assigns.c
  f4d829a6683fedfefe62a3e3ac43b786  gcc/lra-coalesce.c
*************** f4d829a6683fedfefe62a3e3ac43b786  gcc/lr
*** 5151,5157 ****
  93e8a59645cee490782a216dc589d3e9  gcc/lra-eliminations.c
  0ec666c87d6073289dff419425883a42  gcc/lra-int.h
  b25a89a4eea7f17af3b4fd6bd2db5d51  gcc/lra-lives.c
! 8e1860282cb534901d7ff615a340cb08  gcc/lra-remat.c
  efcc5c3fd9badd23a1bec1dccd4e3d36  gcc/lra-spills.c
  9369a238480de0b68a819392540667de  gcc/lra.c
  46b0f9512df7333037038c928b5c81d7  gcc/lra.h
--- 5151,5157 ----
  93e8a59645cee490782a216dc589d3e9  gcc/lra-eliminations.c
  0ec666c87d6073289dff419425883a42  gcc/lra-int.h
  b25a89a4eea7f17af3b4fd6bd2db5d51  gcc/lra-lives.c
! a49a0a4f9056c959c9231829999a618c  gcc/lra-remat.c
  efcc5c3fd9badd23a1bec1dccd4e3d36  gcc/lra-spills.c
  9369a238480de0b68a819392540667de  gcc/lra.c
  46b0f9512df7333037038c928b5c81d7  gcc/lra.h
*************** c2db462bd6bae5d54ad68c35cfc3e4f0  gcc/lt
*** 5163,5187 ****
  39e049d7c57dc1449677294e81cdad65  gcc/lto-section-names.h
  32ac27eae1fd61f0baa4acfa3e24c355  gcc/lto-section-out.c
  639b478c6131079220477bedb1e47b30  gcc/lto-streamer-in.c
! b93b516820b533bd1682f7a148299c10  gcc/lto-streamer-out.c
  bdae986759b0d2c19d10cd95a3469cd6  gcc/lto-streamer.c
  84dd34f2926fb927bddd444cbd5740ee  gcc/lto-streamer.h
  fdd4f9b1c13609e47f794ce0d6f0e8da  gcc/lto-wrapper.c
! 2f01d0020e2fd4e31566f54ccacdaace  gcc/lto/ChangeLog
  bdc9ad4ddf80ce5b1548924f27f8df54  gcc/lto/Make-lang.in
  aa2afb52f6db84edc90db60bc3566afe  gcc/lto/common.c
  6a181dcf9ccdcf338ab68dfd3e8ad75a  gcc/lto/common.h
  781182e3853c98133e52ae282200f73b  gcc/lto/config-lang.in
  7beb31d156a26623be5a29bee88d6399  gcc/lto/lang-specs.h
  f71ec5f2d42dab57f34078aea90bd6a9  gcc/lto/lang.opt
! 4c83e04b5321b647889d9741dcb8c4b4  gcc/lto/lto-lang.c
  ebdb315568c5e02e524992de99915d0f  gcc/lto/lto-object.c
! 4d806d3f2354a2eab518107c30a8900f  gcc/lto/lto-partition.c
  951d15d79aa366d5055f880d2e9fabd0  gcc/lto/lto-partition.h
! f201454c2d7ed616ff317ce6b0c5d6fe  gcc/lto/lto-symtab.c
  46f5dceafcfeb62271edf76e1cd6aaf8  gcc/lto/lto-symtab.h
  1b0f092ea1c184ed35775d8c96bf4c40  gcc/lto/lto-tree.h
! 25e5a10e0b3323f0744562c1b584e205  gcc/lto/lto.c
  ccfecfc6344c571f12776c61c50b98e1  gcc/lto/lto.h
  1ad92c4f2096f1f11a9d722298472ee5  gcc/machmode.def
  89fb633ceadc86168379eec86b822225  gcc/machmode.h
--- 5163,5187 ----
  39e049d7c57dc1449677294e81cdad65  gcc/lto-section-names.h
  32ac27eae1fd61f0baa4acfa3e24c355  gcc/lto-section-out.c
  639b478c6131079220477bedb1e47b30  gcc/lto-streamer-in.c
! 0dd97504e7da4be8ec650b6f27f76c96  gcc/lto-streamer-out.c
  bdae986759b0d2c19d10cd95a3469cd6  gcc/lto-streamer.c
  84dd34f2926fb927bddd444cbd5740ee  gcc/lto-streamer.h
  fdd4f9b1c13609e47f794ce0d6f0e8da  gcc/lto-wrapper.c
! a62c43a129f30fde41bda6482a68b845  gcc/lto/ChangeLog
  bdc9ad4ddf80ce5b1548924f27f8df54  gcc/lto/Make-lang.in
  aa2afb52f6db84edc90db60bc3566afe  gcc/lto/common.c
  6a181dcf9ccdcf338ab68dfd3e8ad75a  gcc/lto/common.h
  781182e3853c98133e52ae282200f73b  gcc/lto/config-lang.in
  7beb31d156a26623be5a29bee88d6399  gcc/lto/lang-specs.h
  f71ec5f2d42dab57f34078aea90bd6a9  gcc/lto/lang.opt
! 86fec80867d42c0624b57f1b982500b3  gcc/lto/lto-lang.c
  ebdb315568c5e02e524992de99915d0f  gcc/lto/lto-object.c
! 2ef114c8335bb313edc597cb3927d16e  gcc/lto/lto-partition.c
  951d15d79aa366d5055f880d2e9fabd0  gcc/lto/lto-partition.h
! 5305d0b6b3ab5279d7270c0ff33e9688  gcc/lto/lto-symtab.c
  46f5dceafcfeb62271edf76e1cd6aaf8  gcc/lto/lto-symtab.h
  1b0f092ea1c184ed35775d8c96bf4c40  gcc/lto/lto-tree.h
! 973c177cd24766229753043eec0f7362  gcc/lto/lto.c
  ccfecfc6344c571f12776c61c50b98e1  gcc/lto/lto.h
  1ad92c4f2096f1f11a9d722298472ee5  gcc/machmode.def
  89fb633ceadc86168379eec86b822225  gcc/machmode.h
*************** e5b46c72998a06200ecc986fe1c79e56  gcc/mk
*** 5197,5203 ****
  5a9baa55381e02b459c341d64806ed7d  gcc/mode-switching.c
  da4b5db61ce6faf08f42429c15f8fa06  gcc/modulo-sched.c
  d96ed9958d9632e5ac768579860166f0  gcc/multiple_target.c
! bcc91878b18dfaa8e57535604660d069  gcc/objc/ChangeLog
  e0e250d535aa8a68ae28a8eac0b5d891  gcc/objc/Make-lang.in
  c30d037bac638bd79ce6921aad7056f0  gcc/objc/config-lang.in
  3da193018c6dbee2a1f10c55657e1809  gcc/objc/lang-specs.h
--- 5197,5203 ----
  5a9baa55381e02b459c341d64806ed7d  gcc/mode-switching.c
  da4b5db61ce6faf08f42429c15f8fa06  gcc/modulo-sched.c
  d96ed9958d9632e5ac768579860166f0  gcc/multiple_target.c
! d965603fd3e95815c674d1481c0f4f90  gcc/objc/ChangeLog
  e0e250d535aa8a68ae28a8eac0b5d891  gcc/objc/Make-lang.in
  c30d037bac638bd79ce6921aad7056f0  gcc/objc/config-lang.in
  3da193018c6dbee2a1f10c55657e1809  gcc/objc/lang-specs.h
*************** c702cd613c028b8ef8020cff71fbdc4d  gcc/ob
*** 5216,5222 ****
  4c31a052046abab42222e4a4408d61f6  gcc/objc/objc-runtime-shared-support.c
  a243f7d55ec9ddd42101d3290be0e75e  gcc/objc/objc-runtime-shared-support.h
  96ed1eda42cd877908898ee0f7d77ca6  gcc/objc/objc-tree.def
! 531759f8df3be36c8055a92892723884  gcc/objcp/ChangeLog
  96e34629089b8c3aa2a43d02340adcdd  gcc/objcp/Make-lang.in
  5ed4e1b3215d236abf28bf5ea33a79b6  gcc/objcp/config-lang.in
  bd48832cba9655ecb20a2db43e401205  gcc/objcp/lang-specs.h
--- 5216,5222 ----
  4c31a052046abab42222e4a4408d61f6  gcc/objc/objc-runtime-shared-support.c
  a243f7d55ec9ddd42101d3290be0e75e  gcc/objc/objc-runtime-shared-support.h
  96ed1eda42cd877908898ee0f7d77ca6  gcc/objc/objc-tree.def
! ea7d8be7ad545cf5c0f67b1599d472c3  gcc/objcp/ChangeLog
  96e34629089b8c3aa2a43d02340adcdd  gcc/objcp/Make-lang.in
  5ed4e1b3215d236abf28bf5ea33a79b6  gcc/objcp/config-lang.in
  bd48832cba9655ecb20a2db43e401205  gcc/objcp/lang-specs.h
*************** bd48832cba9655ecb20a2db43e401205  gcc/ob
*** 5224,5230 ****
  7d680f67db0eb1b8ff1b353ceb2caa2c  gcc/objcp/objcp-decl.h
  8cfb48ffee764ccd1ab5dbf70f0234e0  gcc/objcp/objcp-lang.c
  742609336d1f57839866345f3fe16a98  gcc/omp-builtins.def
! 01a48c0f7cbd54281c8f2a5afd2d2ba5  gcc/omp-low.c
  17f7f9a5279dd46aca82fdd23c6ed175  gcc/omp-low.h
  1e1f9ff0b51d0841355e4ccab02555e5  gcc/omp-simd-clone.c
  f773f4ea009b64414353473ab70fc22d  gcc/opt-functions.awk
--- 5224,5230 ----
  7d680f67db0eb1b8ff1b353ceb2caa2c  gcc/objcp/objcp-decl.h
  8cfb48ffee764ccd1ab5dbf70f0234e0  gcc/objcp/objcp-lang.c
  742609336d1f57839866345f3fe16a98  gcc/omp-builtins.def
! 1fa38b72ed50b64cf3480df1104144e6  gcc/omp-low.c
  17f7f9a5279dd46aca82fdd23c6ed175  gcc/omp-low.h
  1e1f9ff0b51d0841355e4ccab02555e5  gcc/omp-simd-clone.c
  f773f4ea009b64414353473ab70fc22d  gcc/opt-functions.awk
*************** f11f5df5e7e90a33727c7409250ba940  gcc/op
*** 5243,5253 ****
  5d7c8672928d8e9cb91ef0f415fdbedc  gcc/optc-gen.awk
  c4436c027680fe15e299195629d8d8ab  gcc/optc-save-gen.awk
  0d8d3a459ed81fd2fa69cc19981521a8  gcc/opth-gen.awk
! 99b50659a43b24a13195fa23816dcca5  gcc/opts-common.c
  52240b1476d05158d2811656568e12f0  gcc/opts-diagnostic.h
! 2f24b289e6b216a31c7775b6bcbe41e4  gcc/opts-global.c
! b2e8f32205053e2c288e98224914182a  gcc/opts.c
! 8bd47fc4db78292cef3e264347c4e0d3  gcc/opts.h
  f7daf01f2540429baa36f933638dd34d  gcc/output.h
  ffc82aaffe672d77f230f006908b6fd0  gcc/params-enum.h
  6d350f6a56aff3c29a7b7ca665bc7c77  gcc/params-list.h
--- 5243,5253 ----
  5d7c8672928d8e9cb91ef0f415fdbedc  gcc/optc-gen.awk
  c4436c027680fe15e299195629d8d8ab  gcc/optc-save-gen.awk
  0d8d3a459ed81fd2fa69cc19981521a8  gcc/opth-gen.awk
! c0684252f5c43bf95d7342f24a12e22d  gcc/opts-common.c
  52240b1476d05158d2811656568e12f0  gcc/opts-diagnostic.h
! f8f22393d8a63922128e30f039910b34  gcc/opts-global.c
! 16854a4917105abeaa4b943a1bf9d26d  gcc/opts.c
! fcfa82945f1624c4c2d598b30369fb6d  gcc/opts.h
  f7daf01f2540429baa36f933638dd34d  gcc/output.h
  ffc82aaffe672d77f230f006908b6fd0  gcc/params-enum.h
  6d350f6a56aff3c29a7b7ca665bc7c77  gcc/params-list.h
*************** dc6aed12ec5e928c80c813633c206004  gcc/pa
*** 5260,5266 ****
  e096740f20fe6b3282293fc93f25534f  gcc/plugin.c
  03231f119da6e6638a69e3c5111324f8  gcc/plugin.def
  eb08b5caab095677d912ce793705caf7  gcc/plugin.h
! acc1aefc35e99f1d81e99475e49e1e8c  gcc/po/ChangeLog
  b2d1566753aedf7900d55d33f985138c  gcc/po/EXCLUDES
  bd056bfcd385263f3db54d24dec887fc  gcc/po/be.gmo
  3a73294a463e8e356414874bfb68eb2e  gcc/po/be.po
--- 5260,5266 ----
  e096740f20fe6b3282293fc93f25534f  gcc/plugin.c
  03231f119da6e6638a69e3c5111324f8  gcc/plugin.def
  eb08b5caab095677d912ce793705caf7  gcc/plugin.h
! a87d204e8f1dccb20e52e6c012bb6f73  gcc/po/ChangeLog
  b2d1566753aedf7900d55d33f985138c  gcc/po/EXCLUDES
  bd056bfcd385263f3db54d24dec887fc  gcc/po/be.gmo
  3a73294a463e8e356414874bfb68eb2e  gcc/po/be.po
*************** b3ab914b75cad131f23e0bf1339d642d  gcc/po
*** 5303,5309 ****
  7032657d70a903f5d75696ea5de14457  gcc/po/zh_TW.gmo
  2cdbb0fa7c665cce4d6d3ff525958adf  gcc/po/zh_TW.po
  69cb8c2cd669d2ccb4d80d86bafa9b03  gcc/postreload-gcse.c
! 63a57e8e6f2adf1842b3865c3d451d38  gcc/postreload.c
  02aac36ac6c8089e57cdd45796f95237  gcc/predict.c
  415a901fc3abaae33f61b9f1f799990d  gcc/predict.def
  553b321408297f956eb18cc94eef4e2d  gcc/predict.h
--- 5303,5309 ----
  7032657d70a903f5d75696ea5de14457  gcc/po/zh_TW.gmo
  2cdbb0fa7c665cce4d6d3ff525958adf  gcc/po/zh_TW.po
  69cb8c2cd669d2ccb4d80d86bafa9b03  gcc/postreload-gcse.c
! 816c0f6a9b3e3fa335717e304e2c7b13  gcc/postreload.c
  02aac36ac6c8089e57cdd45796f95237  gcc/predict.c
  415a901fc3abaae33f61b9f1f799990d  gcc/predict.def
  553b321408297f956eb18cc94eef4e2d  gcc/predict.h
*************** bf1252245d535babfa24a237303e7b29  gcc/re
*** 5351,5357 ****
  782eb402f689003a9bc3b04c6ee92db1  gcc/rtl.c
  41603f401e1a96d1a8e05b5c46f9af38  gcc/rtl.def
  5c69991839e97dc60e69d06cfd8a28f2  gcc/rtl.h
! 24f46a81b05c3193e05ed765cd76c4b3  gcc/rtlanal.c
  965483e5095eefcb4e53463ae0210f87  gcc/rtlhash.c
  ac002abe85f4bede16f95a42956e9243  gcc/rtlhash.h
  9d310f56bc4c3076effdaafc485c7ccb  gcc/rtlhooks-def.h
--- 5351,5357 ----
  782eb402f689003a9bc3b04c6ee92db1  gcc/rtl.c
  41603f401e1a96d1a8e05b5c46f9af38  gcc/rtl.def
  5c69991839e97dc60e69d06cfd8a28f2  gcc/rtl.h
! 830b36a986f02bbf7623bfc9f9ff3d5f  gcc/rtlanal.c
  965483e5095eefcb4e53463ae0210f87  gcc/rtlhash.c
  ac002abe85f4bede16f95a42956e9243  gcc/rtlhash.h
  9d310f56bc4c3076effdaafc485c7ccb  gcc/rtlhooks-def.h
*************** fcaafbb2a264bc804ed95a87f0f5284d  gcc/sa
*** 5361,5367 ****
  a65b0839331cc74338b9a698a8c6516e  gcc/sanopt.c
  b765a177a40fac9fa436794081ec1a30  gcc/sbitmap.c
  baf1028052c2a830de61b24d81ee5da7  gcc/sbitmap.h
! 75438eaf5eff450c06d49e939f97fc11  gcc/sched-deps.c
  d30bdfafacf75a59010d260990ec7582  gcc/sched-ebb.c
  b3011146b1ff654e200cdd1c84fec4f0  gcc/sched-int.h
  39622a83269e62f7612fe8d39aea6bce  gcc/sched-rgn.c
--- 5361,5367 ----
  a65b0839331cc74338b9a698a8c6516e  gcc/sanopt.c
  b765a177a40fac9fa436794081ec1a30  gcc/sbitmap.c
  baf1028052c2a830de61b24d81ee5da7  gcc/sbitmap.h
! c174dc1fe295c4c8b3319c0fa92c4542  gcc/sched-deps.c
  d30bdfafacf75a59010d260990ec7582  gcc/sched-ebb.c
  b3011146b1ff654e200cdd1c84fec4f0  gcc/sched-int.h
  39622a83269e62f7612fe8d39aea6bce  gcc/sched-rgn.c
*************** f66e4b6fcc68dad613ac0f12ba573ee5  gcc/se
*** 5375,5384 ****
  d5f59bc7a87978c78b1f0017a8fa3b90  gcc/sel-sched.h
  25b0d309c80f47e5d8610840bb16d571  gcc/sese.c
  25e88cb3f28f314d95d2e26f7d22ddde  gcc/sese.h
! 1d237562ab925216579c50bfbd77bc85  gcc/shrink-wrap.c
  3436ff281fab7fb9d57e938898b7be8c  gcc/shrink-wrap.h
  d224cc6bf0fd8d8cd3b3038b78cf0a11  gcc/signop.h
! 79056c49c7791346ca6eec903567aeea  gcc/simplify-rtx.c
  313b2917745aea0b562e53bef7263ae1  gcc/sparseset.c
  32a9dbf0545f25b43a1bb3a30654b10c  gcc/sparseset.h
  a6eb9aa21b664f67281e3af138c1df2d  gcc/spellcheck-tree.c
--- 5375,5384 ----
  d5f59bc7a87978c78b1f0017a8fa3b90  gcc/sel-sched.h
  25b0d309c80f47e5d8610840bb16d571  gcc/sese.c
  25e88cb3f28f314d95d2e26f7d22ddde  gcc/sese.h
! 3168ccacf7b8253219a08153378fa556  gcc/shrink-wrap.c
  3436ff281fab7fb9d57e938898b7be8c  gcc/shrink-wrap.h
  d224cc6bf0fd8d8cd3b3038b78cf0a11  gcc/signop.h
! 7417e1338fdad646ec14677ca1996497  gcc/simplify-rtx.c
  313b2917745aea0b562e53bef7263ae1  gcc/sparseset.c
  32a9dbf0545f25b43a1bb3a30654b10c  gcc/sparseset.h
  a6eb9aa21b664f67281e3af138c1df2d  gcc/spellcheck-tree.c
*************** b41cd04581d6545a57e1fdb7584e9294  gcc/st
*** 5394,5400 ****
  704b277d6624cf0434ceb4413e457e58  gcc/statistics.h
  7b179dec806446f7af9f32ba1fa83b4e  gcc/stmt.c
  db0a871bfd07020c451cf0485edc8552  gcc/stmt.h
! 7e2228b71f5d90edc613ec0c4848cdac  gcc/stor-layout.c
  364b3f58d3ac50134a8eefb5f91fa0ad  gcc/stor-layout.h
  8e3a2b656051f3ce59d1cde56e90e8ff  gcc/store-motion.c
  f5f79d3f7f15413b9096d592037d0446  gcc/streamer-hooks.c
--- 5394,5400 ----
  704b277d6624cf0434ceb4413e457e58  gcc/statistics.h
  7b179dec806446f7af9f32ba1fa83b4e  gcc/stmt.c
  db0a871bfd07020c451cf0485edc8552  gcc/stmt.h
! 0c8121d1bee13eb52904644707ed9675  gcc/stor-layout.c
  364b3f58d3ac50134a8eefb5f91fa0ad  gcc/stor-layout.h
  8e3a2b656051f3ce59d1cde56e90e8ff  gcc/store-motion.c
  f5f79d3f7f15413b9096d592037d0446  gcc/streamer-hooks.c
*************** f5f79d3f7f15413b9096d592037d0446  gcc/st
*** 5402,5408 ****
  f75b463b1db018200f196c0a0e918e3d  gcc/stringpool.c
  0803af7b75ee13cff5baffd8ff860b53  gcc/stringpool.h
  13db02d15ea7277d1189f3b7d0557072  gcc/symbol-summary.h
! 13be08fb63dcbbbbbbe50403359c572e  gcc/symtab.c
  b2fe41501016667e8a7f7b1648c25b65  gcc/sync-builtins.def
  d89e42c95096b0f80d29548fecd3c8a6  gcc/system.h
  d15ba80a73576dfa8624740c7762f0f0  gcc/target-def.h
--- 5402,5408 ----
  f75b463b1db018200f196c0a0e918e3d  gcc/stringpool.c
  0803af7b75ee13cff5baffd8ff860b53  gcc/stringpool.h
  13db02d15ea7277d1189f3b7d0557072  gcc/symbol-summary.h
! 2365458cbc125c1a676d5baf8df2a015  gcc/symtab.c
  b2fe41501016667e8a7f7b1648c25b65  gcc/sync-builtins.def
  d89e42c95096b0f80d29548fecd3c8a6  gcc/system.h
  d15ba80a73576dfa8624740c7762f0f0  gcc/target-def.h
*************** d94eb43316cd04a038cba472458b9941  gcc/ta
*** 5414,5420 ****
  43bc671be91bb4d94848b3e7f27a2930  gcc/target.h
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--- 5414,5420 ----
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*************** f79bc4a80b6890a56ed93a450311aa3f  gcc/te
*** 8084,8090 ****
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--- 8084,8090 ----
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*************** debeca168f3a9a432da9b7fe19f105d0  gcc/te
*** 8192,8198 ****
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--- 8192,8198 ----
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*************** c0e0d2f46bf19ec2b6f3291f97a1ac27  gcc/te
*** 8434,8439 ****
--- 8434,8440 ----
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*************** d4234712e8b6ad1706a38530b6e6d890  gcc/te
*** 8617,8622 ****
--- 8618,8624 ----
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*************** aa9180dd8f8db71eedda52c54d5dcfe1  gcc/te
*** 8756,8761 ****
--- 8758,8767 ----
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*************** c816e733ed428f32e49d50b564aaef54  gcc/te
*** 8866,8871 ****
--- 8872,8880 ----
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*************** e421ddf2d69b41e79c4238d86ca23e02  gcc/te
*** 8955,8961 ****
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--- 8964,8970 ----
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*************** ffc7c68789ff080a9c2dc0100772c9ea  gcc/te
*** 9046,9051 ****
--- 9055,9061 ----
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*************** e111c1f4739203185f9d6294ebadcc5f  gcc/te
*** 10425,10430 ****
--- 10435,10441 ----
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*************** f48062e4d0290e1ca4859c283ed90e0f  gcc/te
*** 10568,10573 ****
--- 10579,10585 ----
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*************** c4dbb33289335abfc0e81ecec97d4f05  gcc/te
*** 10814,10819 ****
--- 10826,10832 ----
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*************** bf28b34cff6af29465046bf24b9bff82  gcc/te
*** 11186,11199 ****
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--- 11199,11215 ----
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*************** e25aa6f18faad387b7f1ade3529476a6  gcc/te
*** 11233,11238 ****
--- 11249,11255 ----
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*************** f8cacc42b6d0ee02c4ec28b4871b946c  gcc/te
*** 11820,11831 ****
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! 01260d1a223a8398c967796299932d12  gcc/testsuite/g++.dg/cpp1y/feat-neg.C
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--- 11837,11848 ----
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*************** c1704c3068b9b801f6fca80634fa3d1c  gcc/te
*** 11847,11852 ****
--- 11864,11870 ----
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*************** b1dd0e1128f26d2c0df901543e326c60  gcc/te
*** 11950,11955 ****
--- 11968,11976 ----
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*************** ffde32febe1810ce3df7e034c7d427c5  gcc/te
*** 12019,12025 ****
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--- 12040,12046 ----
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*************** c76033bace37fe8344dd999290834128  gcc/te
*** 12034,12040 ****
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--- 12055,12063 ----
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*************** ce4ff2095f5aadd1429d75f9964e3068  gcc/te
*** 12525,12530 ****
--- 12548,12554 ----
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*************** d377fb4f9ef6d1ed2029c1551ddf7e3b  gcc/te
*** 12575,12580 ****
--- 12599,12607 ----
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*************** ad9b04984e82c2e0e1fb2025de8f9a23  gcc/te
*** 12718,12724 ****
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--- 12745,12751 ----
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*************** e710a424682710a7b643aeb0875d892d  gcc/te
*** 12728,12733 ****
--- 12755,12761 ----
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*************** e301c29c014339ad81955e68811b25cf  gcc/te
*** 13189,13194 ****
--- 13217,13223 ----
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*************** b818df42e2e83be27f8843cc160f0681  gcc/te
*** 13411,13416 ****
--- 13440,13447 ----
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*************** eee43d821eddc990c3c1e71480186ee2  gcc/te
*** 13474,13479 ****
--- 13505,13511 ----
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*************** a30e748e839e3234af2982a8507640f3  gcc/te
*** 13506,13511 ****
--- 13538,13544 ----
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*************** d53e2610da5ee135ff2297e91a0715be  gcc/te
*** 14050,14055 ****
--- 14083,14090 ----
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*************** e98c78fcaf089947f989361b38fdf935  gcc/te
*** 14544,14550 ****
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--- 14579,14585 ----
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*************** e2528624f74d72e058180aa73e89ab6b  gcc/te
*** 14695,14700 ****
--- 14730,14736 ----
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*************** e8fd45f660a33add25be711bbf9a8aed  gcc/te
*** 14788,14797 ****
--- 14824,14839 ----
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  8ceccf2f02b3f64f372600e32148e146  gcc/testsuite/g++.dg/opt/ptrmem1.C
*************** a0196ebfddfdcb265613530b34c75302  gcc/te
*** 14864,14870 ****
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! 6d368030a15296375251b49a071901f4  gcc/testsuite/g++.dg/other/anon5.C
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--- 14906,14912 ----
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*** 15888,15893 ****
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*** 16772,16777 ****
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*** 17628,17639 ****
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*** 17846,17851 ****
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*** 17860,17865 ****
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*** 17924,17929 ****
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*** 18062,18067 ****
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*** 18090,18095 ****
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*** 18333,18347 ****
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*** 23290,23295 ****
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*************** e378b6043986bf34c640d3c898b04895  gcc/te
*** 24951,24956 ****
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*************** b9abaf3878111c5050502c0f23370740  gcc/te
*** 25892,25897 ****
--- 25968,25974 ----
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*** 27220,27226 ****
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*** 27266,27271 ****
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*** 28000,28005 ****
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*** 28610,28615 ****
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*************** bdd0de0807674c3312a2a9e4ff914e19  gcc/te
*** 28653,28659 ****
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--- 28735,28741 ----
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*************** d042436d2f4ca534a8b4d81610559ebd  gcc/te
*** 28920,28925 ****
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*************** a8c315968907b6e4af7ba7ac664c3d4d  gcc/te
*** 29111,29116 ****
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*** 30584,30589 ****
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*** 30591,30596 ****
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*************** e1f76d1c7221d8b358de9e1afec3b0af  gcc/te
*** 31596,31602 ****
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*************** c5b69018539af33b153200da995bed75  gcc/te
*** 31652,31658 ****
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*************** a311656e42125d7e8563fa88875fdafb  gcc/te
*** 31852,31857 ****
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*************** b0c885e4693ad5d7045cd6482b3302de  gcc/te
*** 31876,31888 ****
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*************** fa7217b4e402db46b1d64ca38eb6f212  gcc/te
*** 32023,32029 ****
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*************** f25359056dca264e17755adacd92210b  gcc/te
*** 32748,32753 ****
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*************** b18ed34db76e8a818f24ae5532580fdb  gcc/te
*** 33179,33184 ****
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*************** f63ff5680f9ddf2bc63277d0a4c08517  gcc/te
*** 33293,33299 ****
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*** 33309,33314 ****
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*** 42490,42496 ****
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*************** aa248a97cbe08f051083687e27e0719b  gcc/te
*** 42807,42813 ****
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--- 43006,43013 ----
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*************** dedcdece98d6722cf60573a8409aaa81  gcc/te
*** 42846,42851 ****
--- 43046,43052 ----
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*************** dc70aef8d9d6a48bc893656c83242caf  gcc/te
*** 42952,42963 ****
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*************** e4e5537356578134ed01182ab2552b70  gcc/te
*** 43859,43864 ****
--- 44060,44097 ----
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*************** e2839913fadc6a00676c8f02deb3f59e  gcc/te
*** 43885,43890 ****
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*************** da5463224c767fe4525ff97ea55cf59b  gcc/te
*** 45324,45330 ****
--- 45583,45592 ----
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*************** caf01994c96172dac156c3da29317823  gcc/te
*** 45491,45497 ****
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--- 45753,45759 ----
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*************** caf3aba39c0565b4369f2e0263b16af5  gcc/te
*** 45507,45513 ****
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--- 45769,45776 ----
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*************** c08abaae6dddb0af0b1430cc189c6040  gcc/te
*** 45649,45656 ****
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*************** f368a72cbfc951f5d512a015f6e8c2fe  gcc/te
*** 45723,45728 ****
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*** 45789,45795 ****
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*** 45936,45945 ****
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*** 45996,46001 ****
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*** 46024,46029 ****
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*************** aec0aad4ad9d1a50c30d68081c0f2184  gcc/te
*** 46043,46048 ****
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*************** d10764d77e5bf498f053a1dcc3189476  gcc/te
*** 46061,46067 ****
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*************** f6e2124bdb58273a0f7f5295b25032c0  gcc/te
*** 46153,46158 ****
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*** 46167,46172 ****
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*** 47185,47190 ****
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*** 47220,47225 ****
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*** 47272,47277 ****
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*************** d5ea8f5a9e2574f03e0f07aefb628587  gcc/te
*** 47371,47376 ****
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*************** c066328da870ad9b313bf9491c5b72d6  gcc/te
*** 47473,47478 ****
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*************** b91d322e1b2019704eecd255b73974e3  gcc/te
*** 47530,47535 ****
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*************** d736b542d4ef5e539b6ab402b0d757c1  gcc/te
*** 47567,47573 ****
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*** 47583,47589 ****
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*************** da95c5400735f4c2f4fc34487feb21f8  gcc/te
*** 48041,48046 ****
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*** 48071,48077 ****
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*************** fed16f1f7d3b8c720c68cbd01b83fa43  gcc/te
*** 48129,48134 ****
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*************** ccea5fe2d622c1b4b11ac162a1a5ab5d  gcc/te
*** 48172,48178 ****
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*************** ce022dd06d4bbcef98eafafee33de6d5  gcc/te
*** 48186,48196 ****
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*************** d8b0925104e27edfd7554327aec7e656  gcc/te
*** 48223,48233 ****
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*** 48402,48413 ****
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*************** c26c871bf08605ce024253a49da3b53a  gcc/te
*** 48460,48465 ****
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*************** e08a65ae23ffa55d956b33c09e1c4cb8  gcc/te
*** 48581,48586 ****
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*************** d715f4258a659b9f52add768ec0176d3  gcc/te
*** 53317,53322 ****
--- 53712,53718 ----
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*************** de51b75218396f3ea74fbbdb7bf0a1c7  gcc/te
*** 53661,53666 ****
--- 54057,54063 ----
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*************** d5f11eb597206a5158e1c0e4bde42beb  gcc/te
*** 55263,55269 ****
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! 727829800e9d258cc359a526a1589711  gcc/testsuite/lib/prune.exp
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--- 55660,55666 ----
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*************** b189cd562dad0502b19d7f4469da5973  gcc/te
*** 55271,55277 ****
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--- 55668,55674 ----
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*************** cc86f493e7e4e40194cc20d75e4ca8e9  gcc/te
*** 56220,56232 ****
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--- 56617,56627 ----
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! 730265ebaf242746c0fb05192c4b96a2  gcc/toplev.c
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*************** c2de57030d2bf66cc4f12053073051ea  gcc/tr
*** 56235,56246 ****
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! 58ccc7e97d9021608872d7663680ff19  gcc/tree-chkp.c
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--- 56630,56641 ----
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! f04efc0d1c0510c1e3acd234b3b31c4e  gcc/tree-cfg.c
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*************** a0af19d7f8f74516a5e87d3b72f38040  gcc/tr
*** 56248,56254 ****
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--- 56643,56649 ----
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! 19b39e2143633dcde4cb1dfa72aa66a7  gcc/tree-dfa.c
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*************** a446fc894b8383c357a029c57fd75a17  gcc/tr
*** 56260,56266 ****
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! d9c354ccf0d5f256655a74b592e92c63  gcc/tree-inline.c
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--- 56655,56661 ----
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*************** fd4c3d5580777d50b0274967152c64a0  gcc/tr
*** 56270,56276 ****
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--- 56665,56671 ----
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*************** d54568e25cf2ea37efc4fdbdb7cc946a  gcc/tr
*** 56279,56285 ****
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--- 56674,56680 ----
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*************** ddd74c800272e36b5e04e6b839d5aaf9  gcc/tr
*** 56288,56294 ****
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--- 56683,56689 ----
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*************** e39c11a700556495027cf2594eda607e  gcc/tr
*** 56315,56338 ****
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! 0752d6af0d206a6715247fd30b33d495  gcc/tree-ssa-phiopt.c
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! 7ec3527cf8a88f81f3af7f7b328675a7  gcc/tree-ssa-tail-merge.c
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--- 56710,56733 ----
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  169a3b8b19b7f59128b8fe9f320c7fcd  gcc/tree-ssa-phionlycprop.c
! 13d23bbc807c19e8bf93fa73219280b3  gcc/tree-ssa-phiopt.c
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  9f98b6151bf9386ea316e7b2957a3818  gcc/tree-ssa-propagate.c
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! 201ad70bbe462e133807dd0970417195  gcc/tree-ssa-reassoc.c
! 775936e74f09d1750b5e014398982509  gcc/tree-ssa-sccvn.c
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! 3a57232e6e8676355a20fa5bd43c46b9  gcc/tree-ssa-structalias.c
! b5150d58d1066662c2bf00fa98641480  gcc/tree-ssa-tail-merge.c
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  f01de11598fc3072fc0b64a42e7d2825  gcc/tree-ssa-threadbackward.c
*************** d0ab33f383e86e2785c5c24335c92b6f  gcc/tr
*** 56354,56371 ****
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! 88fc834970e1ba32e98998d7ce7ecf09  gcc/tree-tailcall.c
  4bd68b981e5581a718f838ba1718003a  gcc/tree-vect-data-refs.c
  a78063c6f19eea041e35fe5515a935f2  gcc/tree-vect-generic.c
! 318b8e4c49ce9ec44a055d34b947f5c9  gcc/tree-vect-loop-manip.c
  295d03e5d7392b0acca8257dea216f96  gcc/tree-vect-loop.c
! 21e2d1afd5108ab1e6d8413b63dc0b6f  gcc/tree-vect-patterns.c
! c2b28b1f389315c73c5ffce684eb42a1  gcc/tree-vect-slp.c
! ccc4a8cdc6372398435b0e878b4d42f4  gcc/tree-vect-stmts.c
  7729076c55712e0bfb562f337107c400  gcc/tree-vectorizer.c
  99cdf0e00b25ff01da509c7f6bd7f8fd  gcc/tree-vectorizer.h
! 2b9fcf0301877066c16c1880e896ff8b  gcc/tree-vrp.c
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! e50649fe36b873e6052311a0a2d40c97  libffi/doc/libffi.info
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  22b7acb3b27a7bc2c6d5e436e1944367  libffi/fficonfig.h.in
*************** d47c79b281339983862a8e52d8c73f0f  libffi
*** 57250,57263 ****
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! 05d4a6b846a10b70d0f592c2a02840e1  libgcc/ChangeLog
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! ddba3b1969d0e48c1b4a5f25139a58f0  libgcc/config.host
  3b9d11b9f405d47c079d725f2f16271e  libgcc/config.in
  c1dd89f96f28e8843a51c0c7b560c6c7  libgcc/config/aarch64/crtfastmath.c
  9dca9ad5de19b368a1b3ec83a660a34f  libgcc/config/aarch64/crti.S
  bc16afb72bf32e5d2e38675d9dcb0900  libgcc/config/aarch64/crtn.S
! 0282101c2db39a8e91787c1f80a27d3b  libgcc/config/aarch64/linux-unwind.h
  e20c313f9596b370bd161357a9cf573d  libgcc/config/aarch64/sfp-exceptions.c
  c71595c97b9e3f5835c15cc6b86f9128  libgcc/config/aarch64/sfp-machine.h
  c60de441b965ca5ed7b86a4bcadc5c99  libgcc/config/aarch64/sync-cache.c
--- 57645,57658 ----
  291be426192f460f6a07dfe1c96ab094  libffi/testsuite/libffi.special/special.exp
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  185d0795017fbbe253a13db8e34085f9  libffi/testsuite/libffi.special/unwindtest_ffi_call.cc
! 2450fddff36b184199966060eb647e75  libgcc/ChangeLog
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! 2259d8a633d067489a831f73d67fa4d5  libgcc/config.host
  3b9d11b9f405d47c079d725f2f16271e  libgcc/config.in
  c1dd89f96f28e8843a51c0c7b560c6c7  libgcc/config/aarch64/crtfastmath.c
  9dca9ad5de19b368a1b3ec83a660a34f  libgcc/config/aarch64/crti.S
  bc16afb72bf32e5d2e38675d9dcb0900  libgcc/config/aarch64/crtn.S
! cdd3e5c6f9e29241d6253bd4d6291ac8  libgcc/config/aarch64/linux-unwind.h
  e20c313f9596b370bd161357a9cf573d  libgcc/config/aarch64/sfp-exceptions.c
  c71595c97b9e3f5835c15cc6b86f9128  libgcc/config/aarch64/sfp-machine.h
  c60de441b965ca5ed7b86a4bcadc5c99  libgcc/config/aarch64/sync-cache.c
*************** c60de441b965ca5ed7b86a4bcadc5c99  libgcc
*** 57265,57271 ****
  a0a46a9affff177d894176604c30c40d  libgcc/config/aarch64/t-softfp
  5b08a1fd6a76ca8ed523d156702da9ed  libgcc/config/alpha/crtfastmath.c
  00a63bcff52dd6af2601ce33f1214245  libgcc/config/alpha/libgcc-alpha-ldbl.ver
! 33596e8e4cfa811798555b6a97f2c3de  libgcc/config/alpha/linux-unwind.h
  64530bc923625cddb1e552e736157738  libgcc/config/alpha/qrnnd.S
  e06033e6f9902c9e703e237d511df6c4  libgcc/config/alpha/t-alpha
  95db551210150c5b18529c72cfdaeabf  libgcc/config/alpha/t-ieee
--- 57660,57666 ----
  a0a46a9affff177d894176604c30c40d  libgcc/config/aarch64/t-softfp
  5b08a1fd6a76ca8ed523d156702da9ed  libgcc/config/alpha/crtfastmath.c
  00a63bcff52dd6af2601ce33f1214245  libgcc/config/alpha/libgcc-alpha-ldbl.ver
! e24bb49255f6ba0b4cca4c1fc3bddf78  libgcc/config/alpha/linux-unwind.h
  64530bc923625cddb1e552e736157738  libgcc/config/alpha/qrnnd.S
  e06033e6f9902c9e703e237d511df6c4  libgcc/config/alpha/t-alpha
  95db551210150c5b18529c72cfdaeabf  libgcc/config/alpha/t-ieee
*************** da5bbbfa5ef487bd7b56de9bc2fc0c13  libgcc
*** 57384,57390 ****
  095c929a5b7dfa92883a9a365bb8be0a  libgcc/config/bfin/crtn.S
  4959ea15a965f87fcc046c7c4918ef7a  libgcc/config/bfin/lib1funcs.S
  ba8db89a6a253bd1c44ed06e135aaf55  libgcc/config/bfin/libgcc-glibc.ver
! e84c633a2ab12f9b80e3ba4bc3180c4f  libgcc/config/bfin/linux-unwind.h
  4e54ca63fc628fdd56df2687a2bf457e  libgcc/config/bfin/t-bfin
  a5e909e203a6fbf202b2eaad6bff3601  libgcc/config/bfin/t-crtlibid
  17298642a82c8a2809260d1eb08f7e4e  libgcc/config/bfin/t-crtstuff
--- 57779,57785 ----
  095c929a5b7dfa92883a9a365bb8be0a  libgcc/config/bfin/crtn.S
  4959ea15a965f87fcc046c7c4918ef7a  libgcc/config/bfin/lib1funcs.S
  ba8db89a6a253bd1c44ed06e135aaf55  libgcc/config/bfin/libgcc-glibc.ver
! c61f344cd5ae2d494d6f731184c22e39  libgcc/config/bfin/linux-unwind.h
  4e54ca63fc628fdd56df2687a2bf457e  libgcc/config/bfin/t-bfin
  a5e909e203a6fbf202b2eaad6bff3601  libgcc/config/bfin/t-crtlibid
  17298642a82c8a2809260d1eb08f7e4e  libgcc/config/bfin/t-crtstuff
*************** b2bcf8b944f937cb4f3799c02670dcee  libgcc
*** 57516,57522 ****
  a92aa384cf96b81c0dbb642826200dd7  libgcc/config/i386/64/letf2.c
  d1337b28acd8dbde9817492f9027dbc3  libgcc/config/i386/64/sfp-machine.h
  498bbaf506a5bbdaa793f66399ece491  libgcc/config/i386/64/t-softfp-compat
! db360563c64cc565068fbdf96c1f6c24  libgcc/config/i386/cpuinfo.c
  ed76aebf2027c2cc1a78815571a19d50  libgcc/config/i386/crtfastmath.c
  0d41f4de6af5e66ba6e5e10f5545e51e  libgcc/config/i386/crti.S
  46c78a2f22a51f2f824f081c5b8db4a5  libgcc/config/i386/crtn.S
--- 57911,57917 ----
  a92aa384cf96b81c0dbb642826200dd7  libgcc/config/i386/64/letf2.c
  d1337b28acd8dbde9817492f9027dbc3  libgcc/config/i386/64/sfp-machine.h
  498bbaf506a5bbdaa793f66399ece491  libgcc/config/i386/64/t-softfp-compat
! 808c1c24fc3fb0d6d053c55b34ccb20a  libgcc/config/i386/cpuinfo.c
  ed76aebf2027c2cc1a78815571a19d50  libgcc/config/i386/crtfastmath.c
  0d41f4de6af5e66ba6e5e10f5545e51e  libgcc/config/i386/crti.S
  46c78a2f22a51f2f824f081c5b8db4a5  libgcc/config/i386/crtn.S
*************** ed76aebf2027c2cc1a78815571a19d50  libgcc
*** 57528,57534 ****
  e7041217aa9b916413432df20153b377  libgcc/config/i386/dragonfly-unwind.h
  5f77189adf843f7aa1a3285c54a114a9  libgcc/config/i386/elf-lib.h
  e3facdd13a434359ae1f8e8aa34a2351  libgcc/config/i386/enable-execute-stack-mingw32.c
! c385a0890628c3cb0e0c999560bc11b3  libgcc/config/i386/freebsd-unwind.h
  d2992d650b3ab3d99d0724fd51341c3c  libgcc/config/i386/gthr-win32.c
  f01d17fbb4333c4704d6f0baa8042450  libgcc/config/i386/gthr-win32.h
  8706604ee159d0c91afa18cb6bfae723  libgcc/config/i386/libgcc-bsd.ver
--- 57923,57929 ----
  e7041217aa9b916413432df20153b377  libgcc/config/i386/dragonfly-unwind.h
  5f77189adf843f7aa1a3285c54a114a9  libgcc/config/i386/elf-lib.h
  e3facdd13a434359ae1f8e8aa34a2351  libgcc/config/i386/enable-execute-stack-mingw32.c
! c1b894a667cfb7834d8050c6d95df75d  libgcc/config/i386/freebsd-unwind.h
  d2992d650b3ab3d99d0724fd51341c3c  libgcc/config/i386/gthr-win32.c
  f01d17fbb4333c4704d6f0baa8042450  libgcc/config/i386/gthr-win32.h
  8706604ee159d0c91afa18cb6bfae723  libgcc/config/i386/libgcc-bsd.ver
*************** f01d17fbb4333c4704d6f0baa8042450  libgcc
*** 57537,57543 ****
  8a04694ce3b021a12ab102c30207b74d  libgcc/config/i386/libgcc-darwin.10.5.ver
  7cd0063befdc062e1c4d99c880edcd5f  libgcc/config/i386/libgcc-glibc.ver
  a2e36a0e43de37e8c5eaa1d8652e8821  libgcc/config/i386/libgcc-sol2.ver
! a8818d2a1174fc3f4eb80f56faa14c4f  libgcc/config/i386/linux-unwind.h
  a4ee5e8de0079da2e14ebf36d6f2d8b3  libgcc/config/i386/morestack.S
  486126bdcfecb39b04666b2e6044de65  libgcc/config/i386/sfp-exceptions.c
  eff2f552940053c3c5d9d09dee943b13  libgcc/config/i386/sfp-machine.h
--- 57932,57938 ----
  8a04694ce3b021a12ab102c30207b74d  libgcc/config/i386/libgcc-darwin.10.5.ver
  7cd0063befdc062e1c4d99c880edcd5f  libgcc/config/i386/libgcc-glibc.ver
  a2e36a0e43de37e8c5eaa1d8652e8821  libgcc/config/i386/libgcc-sol2.ver
! b56c110a4c01e703b7f31d8b6adfbde4  libgcc/config/i386/linux-unwind.h
  a4ee5e8de0079da2e14ebf36d6f2d8b3  libgcc/config/i386/morestack.S
  486126bdcfecb39b04666b2e6044de65  libgcc/config/i386/sfp-exceptions.c
  eff2f552940053c3c5d9d09dee943b13  libgcc/config/i386/sfp-machine.h
*************** a853117f36a011bda408de79e30cf6dc  libgcc
*** 57605,57611 ****
  5331d793e0ecd9208ce6f18cc3038dd3  libgcc/config/ia64/vms-unwind.h
  468f59c2ac7f40b9460dc2ca6fb5ba75  libgcc/config/iq2000/lib2funcs.c
  102f7dad8ad6b54434a1b8313d1e42c4  libgcc/config/iq2000/t-iq2000
! 4b336e5187f5e3e03523142cf0b409ad  libgcc/config/libbid/ChangeLog
  71e401fe076997afe9d1a55f854029d9  libgcc/config/libbid/_addsub_dd.c
  7435567b97fdc341a31732fba8e5990a  libgcc/config/libbid/_addsub_sd.c
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--- 58000,58006 ----
  5331d793e0ecd9208ce6f18cc3038dd3  libgcc/config/ia64/vms-unwind.h
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  102f7dad8ad6b54434a1b8313d1e42c4  libgcc/config/iq2000/t-iq2000
! 0f2d15a7063110af86f7d02289653f8e  libgcc/config/libbid/ChangeLog
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  b4b1e29d6fdc4dd4f10a985f903973b8  libgcc/config/libbid/_addsub_td.c
*************** e252c161ec4eb09d3b5a62d902b3d00f  libgcc
*** 57793,57799 ****
  c88d87907a20077db176016165428d4b  libgcc/config/m68k/fpgnulib.c
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  2581a1170b402a8253cb6648111832d1  libgcc/config/m68k/linux-atomic.c
! dc83ed466ee84e6af2aff4c4cff47851  libgcc/config/m68k/linux-unwind.h
  2e4fd3e401c9159da9f32d5965b5afa1  libgcc/config/m68k/t-floatlib
  de217c41c217f4341d6d546afa9a79f2  libgcc/config/m68k/t-linux
  4e281c631e54b8912258f84196fec9e6  libgcc/config/m68k/t-slibgcc-elf-ver
--- 58188,58194 ----
  c88d87907a20077db176016165428d4b  libgcc/config/m68k/fpgnulib.c
  ab78009c7cb705cc4e42e2096628f9f5  libgcc/config/m68k/lb1sf68.S
  2581a1170b402a8253cb6648111832d1  libgcc/config/m68k/linux-atomic.c
! cb7eecc6075b9606f01a68168ff8c517  libgcc/config/m68k/linux-unwind.h
  2e4fd3e401c9159da9f32d5965b5afa1  libgcc/config/m68k/t-floatlib
  de217c41c217f4341d6d546afa9a79f2  libgcc/config/m68k/t-linux
  4e281c631e54b8912258f84196fec9e6  libgcc/config/m68k/t-slibgcc-elf-ver
*************** ce5ed15c26988ccfc205d8133fad07cb  libgcc
*** 58125,58131 ****
  9d23e04a2f280ff1b3c515d87bbe282f  libgcc/config/nios2/lib2-mul.c
  4f1d56c0a4637c77ab59f9702e1b4dac  libgcc/config/nios2/lib2-nios2.h
  4e80f10d6f952ad86d52f39357749ad0  libgcc/config/nios2/linux-atomic.c
! ed361a218f9b5a55c68760cb6e91dcd9  libgcc/config/nios2/linux-unwind.h
  bce58b89f63026ab23bda027d94e003f  libgcc/config/nios2/sfp-machine.h
  598bde069aeebadde9b08f8703ab2c77  libgcc/config/nios2/t-linux
  058cf7bee1e8fb40a62590a2558c7f76  libgcc/config/nios2/t-nios2
--- 58520,58526 ----
  9d23e04a2f280ff1b3c515d87bbe282f  libgcc/config/nios2/lib2-mul.c
  4f1d56c0a4637c77ab59f9702e1b4dac  libgcc/config/nios2/lib2-nios2.h
  4e80f10d6f952ad86d52f39357749ad0  libgcc/config/nios2/linux-atomic.c
! 982d6cf1033e66837d0fde1e69ce414c  libgcc/config/nios2/linux-unwind.h
  bce58b89f63026ab23bda027d94e003f  libgcc/config/nios2/sfp-machine.h
  598bde069aeebadde9b08f8703ab2c77  libgcc/config/nios2/t-linux
  058cf7bee1e8fb40a62590a2558c7f76  libgcc/config/nios2/t-nios2
*************** fdea2e344931bfb630a74276f2f76a02  libgcc
*** 58139,58150 ****
  ca9da895299af03b197a5f8e2018ced5  libgcc/config/nvptx/realloc.c
  e465a2982248b3d4b3d064c481046153  libgcc/config/nvptx/reduction.c
  63f6e61e73288afd9ad676a54019b24f  libgcc/config/nvptx/t-nvptx
! 452bc9bd9a93e850b6659e42015caaca  libgcc/config/pa/fptr.c
  ff58ecf275cfa97347d0a1bf293044f1  libgcc/config/pa/gthr-dce.h
  376e638d9ee55e3c66b3e6db2548bb13  libgcc/config/pa/hpux-unwind.h
  d64b5bc6dfa0ebd464ff8f9ebb840a07  libgcc/config/pa/lib2funcs.S
! d1013c3b26270702143e08d154e3ac33  libgcc/config/pa/linux-atomic.c
! a1ca3fd8c54689e32c0dbde7860c55d2  libgcc/config/pa/linux-unwind.h
  17a26f749b877bf725e4e66306c32049  libgcc/config/pa/milli64.S
  ef70435811ba277653263b2e463b4944  libgcc/config/pa/quadlib.c
  635c3bf0855fc322e4bf97a026dc2248  libgcc/config/pa/stublib.c
--- 58534,58545 ----
  ca9da895299af03b197a5f8e2018ced5  libgcc/config/nvptx/realloc.c
  e465a2982248b3d4b3d064c481046153  libgcc/config/nvptx/reduction.c
  63f6e61e73288afd9ad676a54019b24f  libgcc/config/nvptx/t-nvptx
! 73c973b11efe86f9b6756934dfa3e496  libgcc/config/pa/fptr.c
  ff58ecf275cfa97347d0a1bf293044f1  libgcc/config/pa/gthr-dce.h
  376e638d9ee55e3c66b3e6db2548bb13  libgcc/config/pa/hpux-unwind.h
  d64b5bc6dfa0ebd464ff8f9ebb840a07  libgcc/config/pa/lib2funcs.S
! afa2024c8afd94ad6cebb577265fdafe  libgcc/config/pa/linux-atomic.c
! ebc1ddc2268f36fb4c82d53b99dee82d  libgcc/config/pa/linux-unwind.h
  17a26f749b877bf725e4e66306c32049  libgcc/config/pa/milli64.S
  ef70435811ba277653263b2e463b4944  libgcc/config/pa/quadlib.c
  635c3bf0855fc322e4bf97a026dc2248  libgcc/config/pa/stublib.c
*************** f42675815d97db2fa611a83e1764bbea  libgcc
*** 58224,58230 ****
  55675b470fe1108509bc012941a57a03  libgcc/config/rs6000/fixkfti.c
  f432946a682aa8ce8ac135457dc9a675  libgcc/config/rs6000/fixunskfti.c
  9fcd015bc93752601fb34990c5ffff8f  libgcc/config/rs6000/float128-hw.c
! b6ff80ebe340987be852a12236b14549  libgcc/config/rs6000/float128-ifunc.c
  e30148cb7f3ce0ea8ba55383e38c66df  libgcc/config/rs6000/float128-sed
  ae9fbb2d21d9ac45513f6d3df94f3d59  libgcc/config/rs6000/float128-sed-hw
  7829f9565b1112686f64a8e92d740235  libgcc/config/rs6000/floattikf.c
--- 58619,58625 ----
  55675b470fe1108509bc012941a57a03  libgcc/config/rs6000/fixkfti.c
  f432946a682aa8ce8ac135457dc9a675  libgcc/config/rs6000/fixunskfti.c
  9fcd015bc93752601fb34990c5ffff8f  libgcc/config/rs6000/float128-hw.c
! 6996474186bdfbaadf4222fef2ec263b  libgcc/config/rs6000/float128-ifunc.c
  e30148cb7f3ce0ea8ba55383e38c66df  libgcc/config/rs6000/float128-sed
  ae9fbb2d21d9ac45513f6d3df94f3d59  libgcc/config/rs6000/float128-sed-hw
  7829f9565b1112686f64a8e92d740235  libgcc/config/rs6000/floattikf.c
*************** e151ebb32da0c1fdcdbc5fb62a888ed7  libgcc
*** 58301,58314 ****
  68ddef94ef228a2e500c6f84ca5c5f73  libgcc/config/sh/libgcc-excl.ver
  b542af372bebcc4aadd251ca37e3cf5b  libgcc/config/sh/libgcc-glibc.ver
  b23e9f3385b9f7d24b097c982a736845  libgcc/config/sh/linux-atomic.c
! 84ed1c6251e5f363bd52060d2c5c0121  libgcc/config/sh/linux-unwind.h
  d915cb58faa1ad2108733b662853057e  libgcc/config/sh/t-linux
  be1b06de574a22c34d2cf93d2d68a4f1  libgcc/config/sh/t-netbsd
  23563a0d5925f022af38743a456aa946  libgcc/config/sh/t-sh
  76e7a417b80ad6036293aa64274a5ff3  libgcc/config/sh/t-sh64
  00d4a30e4ed4a68cd6ec53feb398914b  libgcc/config/sh/t-superh
  4ec53c966b7e8ea0c161884671428e7c  libgcc/config/sol2/crtp.c
! b964176ff06aaea0e71fd477666c91b3  libgcc/config/sol2/crtpg.c
  5e87cfc189f02028b142950527a73c54  libgcc/config/sol2/gmon.c
  e2c566123abbfcacdcf4d215a96f33c0  libgcc/config/sol2/t-sol2
  d12e3dfd4476c276710b632a6f75304b  libgcc/config/sparc/crtfastmath.c
--- 58696,58709 ----
  68ddef94ef228a2e500c6f84ca5c5f73  libgcc/config/sh/libgcc-excl.ver
  b542af372bebcc4aadd251ca37e3cf5b  libgcc/config/sh/libgcc-glibc.ver
  b23e9f3385b9f7d24b097c982a736845  libgcc/config/sh/linux-atomic.c
! 98853dcbf49b49645b233612c67a5f5d  libgcc/config/sh/linux-unwind.h
  d915cb58faa1ad2108733b662853057e  libgcc/config/sh/t-linux
  be1b06de574a22c34d2cf93d2d68a4f1  libgcc/config/sh/t-netbsd
  23563a0d5925f022af38743a456aa946  libgcc/config/sh/t-sh
  76e7a417b80ad6036293aa64274a5ff3  libgcc/config/sh/t-sh64
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  4ec53c966b7e8ea0c161884671428e7c  libgcc/config/sol2/crtp.c
! 1df2ad5d54a0d0400b4573e47435d6e3  libgcc/config/sol2/crtpg.c
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  e2c566123abbfcacdcf4d215a96f33c0  libgcc/config/sol2/t-sol2
  d12e3dfd4476c276710b632a6f75304b  libgcc/config/sparc/crtfastmath.c
*************** aa5fd95cba7a4d8329be007695e43d15  libgcc
*** 58401,58407 ****
  94fecaba2fa3fca31d038d5739e45e51  libgcc/config/tilegx/t-tilegx
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! ce63dc9e31703cbdf3f90e35cccbf8d2  libgcc/config/tilepro/linux-unwind.h
  c319c87cee2bc57b33cd850fb03731b5  libgcc/config/tilepro/sfp-machine.h
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  8e16ce18d7505c71b43737bda13332a3  libgcc/config/tilepro/softmpy.S
--- 58796,58802 ----
  94fecaba2fa3fca31d038d5739e45e51  libgcc/config/tilegx/t-tilegx
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! cc541755f7290b3ca37fccd536c92e78  libgcc/config/tilepro/linux-unwind.h
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  8e16ce18d7505c71b43737bda13332a3  libgcc/config/tilepro/softmpy.S
*************** bd986767fa1fcc4ab8c574fa9ac89ded  libgcc
*** 58432,58451 ****
  f1549bf4f87d5b8f3ba95e52e5568818  libgcc/config/vxlib.c
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  c74fcf9de7e684dae48b46076d2dac26  libgcc/config/xtensa/crtn.S
! bca10713facd662410b2fb7994c82c17  libgcc/config/xtensa/ieee754-df.S
! 7e8d09bf143129689e09c9b0b947c7b8  libgcc/config/xtensa/ieee754-sf.S
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  8074695f5eea7b961c59ee9608973dac  libgcc/config/xtensa/libgcc-glibc.ver
! 2755ee3c07a856dec2587e0f4dbc03d8  libgcc/config/xtensa/linux-unwind.h
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  7da933432a6e52d1efc862332d430b9a  libgcc/config/xtensa/unwind-dw2-xtensa.c
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! c78d1b21336e7929df71a2871e6bd5a4  libgcc/configure
! 398956bff2a4ae4186e94d939c6a9aaa  libgcc/configure.ac
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--- 58827,58846 ----
  f1549bf4f87d5b8f3ba95e52e5568818  libgcc/config/vxlib.c
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! 38c1216c6a3d462891cddc814d61d326  libgcc/config/xtensa/linux-unwind.h
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! da4e20d0dbcd97c876cd774f82c91639  libgcc/configure
! 2cc133be0166269ae1d5c9857c74e274  libgcc/configure.ac
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*************** c32cd3e263796cd15069d0ff7e25cb37  libgcc
*** 58474,58480 ****
  c1944db3272244cdfc3f4ffb9bd512e8  libgcc/gthr-single.h
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! 6b3d9a5c3693210ac72b3b361eddfdd1  libgcc/libgcc2.c
  5185d0ee7180cb24784d1078584fbba4  libgcc/libgcc2.h
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--- 58869,58875 ----
  c1944db3272244cdfc3f4ffb9bd512e8  libgcc/gthr-single.h
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! 2e22d2d81faa892f7584706b19df9f77  libgcc/libgcc2.c
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  bf920f8c4b7c88fcf81d0d2b69ada9d0  libgcc/libgcov-driver.c
*************** c99b4b0797edf0de059bb4c01d1ad353  libgcc
*** 58598,58604 ****
  313b45ca7b9607eea7d19c449385d0a8  libgcc/vtv_end_preinit.c
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! 5a3f8c029524ab93a4690902e341a432  libgfortran/ChangeLog
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--- 58993,58999 ----
  313b45ca7b9607eea7d19c449385d0a8  libgcc/vtv_end_preinit.c
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! 13ef841d0b304b376d50720775edb2c2  libgfortran/ChangeLog
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  9f0239429993a5e64ed793eb6c55a5c1  libgfortran/ChangeLog-2004
*************** c0a55cff553a1686d7255e1813d082b5  libgfo
*** 59172,59178 ****
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! aa28d67681b70dc993a2bd1f750274d7  libgfortran/intrinsics/execute_command_line.c
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--- 59567,59573 ----
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! 8ab743f6ed24fad14feef063b22df449  libgfortran/intrinsics/execute_command_line.c
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*************** b53cd2f047b4b94fe5babf4da86b81a4  libgfo
*** 59218,59224 ****
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! eda663cbdce6e4285da1a79d8ca88976  libgfortran/io/close.c
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--- 59613,59619 ----
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! 9763a41e6ca1770a9062e64453276209  libgfortran/io/close.c
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*************** a98143a30d4369a5f9fd8bfc1b2de3fa  libgfo
*** 59227,59233 ****
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! 03c6f4e70da396fa5e1d36a7d4cd5b91  libgfortran/io/list_read.c
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--- 59622,59628 ----
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*************** fe6c78a011416d3d5627642c5274cbcc  libgfo
*** 59235,59241 ****
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! edd2ae35cd71b2e13e8518efa4f81859  libgfortran/io/unix.c
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--- 59630,59636 ----
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*************** a6a881e5b0f2eab67e247c41d07dfc84  libgfo
*** 59313,59326 ****
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--- 59708,59721 ----
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*************** dee72a6a60e99528b0d17bf3ff9a1e15  libgo/
*** 59329,59336 ****
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--- 59724,59731 ----
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*************** d0dfa8e45cee5defb536480f056ed447  libgo/
*** 61196,61202 ****
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--- 61591,61596 ----
*************** a0090b126833084a9f2908291f50e6a0  libgo/
*** 61250,61257 ****
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--- 61644,61651 ----
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*************** dd6092f960662d19b569d266cb9e27cb  libgo/
*** 61337,61343 ****
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--- 81860,81866 ----
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*************** c90f18ac05fb055c54f64951e7cfe38c  libjav
*** 81476,81488 ****
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--- 81882,81894 ----
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*************** a40a8f1527e2703fe2f08bf7276d8591  libjav
*** 85414,85420 ****
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--- 85820,85826 ----
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*************** d41d8cd98f00b204e9800998ecf8427e  libjav
*** 87112,87118 ****
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--- 87518,87524 ----
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*************** e67fb1bdc86e2be5473ab0192835f369  libmpx
*** 87135,87141 ****
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--- 87541,87547 ----
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*************** e6218a24eff5153bc00353f3422fddcd  libobj
*** 87192,87198 ****
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--- 87598,87604 ----
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*************** d15cf07e8d906fc3a590a354637de29c  liboff
*** 87294,87300 ****
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--- 87700,87706 ----
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*************** b575232932aeb139e780664720bc8695  libqua
*** 87302,87308 ****
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--- 87708,87714 ----
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*************** faf9f5ae44363f9f6507c0011d46db13  libqua
*** 87378,87384 ****
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--- 87784,87790 ----
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*************** e766022f8615b72cbc38335d262e9d3d  libqua
*** 87426,87432 ****
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--- 87832,87838 ----
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*************** b9a0d9db2c435b828599af150cc78892  libsan
*** 87574,87582 ****
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--- 87980,87988 ----
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*************** dc19b6c6d105fe7ca9a91dcdfeb09e7c  libsan
*** 87588,87594 ****
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--- 87994,88000 ----
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*************** c3f6777ad803d63737204cd999a43e7d  libsan
*** 87610,87616 ****
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--- 88016,88022 ----
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*************** ef6d1cac3d00b1552f685c1c47c5e386  libsan
*** 87667,87673 ****
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--- 88073,88079 ----
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! 1a35952008dffb52cedb236ac2e601fa  libsanitizer/tsan/tsan_platform_linux.cc
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! 6f31e7a77f788f87a8460c1330fc661f  libstdc++-v3/doc/xml/manual/status_cxx1998.xml
  49671ba9cd4468e27ec20c9fcc912a32  libstdc++-v3/doc/xml/manual/status_cxx2011.xml
  0fbcde6a5259dc97d44b3351561e9eb4  libstdc++-v3/doc/xml/manual/status_cxx2014.xml
  97302ecc24a10532d0b2869e7ed429ac  libstdc++-v3/doc/xml/manual/status_cxx2017.xml
! a9f9777aba6eea169261909f7f31611e  libstdc++-v3/doc/xml/manual/status_cxxtr1.xml
! a8c5809c339798c139d874b837020e07  libstdc++-v3/doc/xml/manual/status_cxxtr24733.xml
  4bde3160d9ccaca3edfee800f93973f1  libstdc++-v3/doc/xml/manual/strings.xml
  c564c4399f854273d5814b3c57d3d591  libstdc++-v3/doc/xml/manual/support.xml
  2978e698473a99f6410b3b7c846c521b  libstdc++-v3/doc/xml/manual/test.xml
  116a76d7bc2ce704f1980b594e8810e4  libstdc++-v3/doc/xml/manual/test_policy_data_structures.xml
! 88814fd331711c142050acc8801e3de5  libstdc++-v3/doc/xml/manual/using.xml
  b7f6fd4de47790d453b4fecbeaae8bef  libstdc++-v3/doc/xml/manual/using_exceptions.xml
  d42dacf57cbf8644fc8b7217c7e8893a  libstdc++-v3/doc/xml/manual/utilities.xml
  c9536b9d3d9995efd26184aed10e81ac  libstdc++-v3/doc/xml/spine.xml
  bd966b4a0df6f2a84f9770525581d45c  libstdc++-v3/doc/xsl/customization.xsl.in
  4106d76110e8316a461f2592a7b9588a  libstdc++-v3/fragment.am
! ad0f532f934582c94a6d7649e137e713  libstdc++-v3/include/Makefile.am
! aea95ac6d92fe14af99840aa4d0d25dc  libstdc++-v3/include/Makefile.in
  2d5f35eb06861167823695299e6213e4  libstdc++-v3/include/backward/auto_ptr.h
  40bfc7d0e93b0ea697888874c4060430  libstdc++-v3/include/backward/backward_warning.h
  f41fe204b211d30c9e9476ba0ca16cec  libstdc++-v3/include/backward/binders.h
*************** b03f0a343c7d8ddccca50a891caddc33  libstd
*** 88415,88423 ****
  f0578356a1efb465a5dba33347032ae8  libstdc++-v3/include/bits/allocator.h
  5f30f701e7d6b34448934703eace46e4  libstdc++-v3/include/bits/atomic_base.h
  3774566059c77d9385646dd5083abe4d  libstdc++-v3/include/bits/atomic_futex.h
! f34e444d81ef2fa3d21e42bbd17438ff  libstdc++-v3/include/bits/basic_ios.h
  521135e1da8b9600515d55a7446e6886  libstdc++-v3/include/bits/basic_ios.tcc
! 839a4fbc4d9034419742eee756aa5704  libstdc++-v3/include/bits/basic_string.h
  04e7a810e20631c4e4c55f70ff0568fc  libstdc++-v3/include/bits/basic_string.tcc
  4a4591228c96b08e8cfafd659ca4e914  libstdc++-v3/include/bits/boost_concept_check.h
  6c698861fbe30dd645b02cc9332c3cc9  libstdc++-v3/include/bits/c++0x_warning.h
--- 88821,88829 ----
  f0578356a1efb465a5dba33347032ae8  libstdc++-v3/include/bits/allocator.h
  5f30f701e7d6b34448934703eace46e4  libstdc++-v3/include/bits/atomic_base.h
  3774566059c77d9385646dd5083abe4d  libstdc++-v3/include/bits/atomic_futex.h
! fe5e7a00391055d2a14d9cb218cfbb77  libstdc++-v3/include/bits/basic_ios.h
  521135e1da8b9600515d55a7446e6886  libstdc++-v3/include/bits/basic_ios.tcc
! 68196d790a4359056df0220d109e1a89  libstdc++-v3/include/bits/basic_string.h
  04e7a810e20631c4e4c55f70ff0568fc  libstdc++-v3/include/bits/basic_string.tcc
  4a4591228c96b08e8cfafd659ca4e914  libstdc++-v3/include/bits/boost_concept_check.h
  6c698861fbe30dd645b02cc9332c3cc9  libstdc++-v3/include/bits/c++0x_warning.h
*************** e2149feee0af751c0a9700812a6d998e  libstd
*** 88431,88450 ****
  338c0938c131aa2295a2f65c6a700d00  libstdc++-v3/include/bits/enable_special_members.h
  6df81be9a82148c9b1d1cfcdf89c57cb  libstdc++-v3/include/bits/forward_list.h
  b1eda665774854543e9cc5f78747d80a  libstdc++-v3/include/bits/forward_list.tcc
! 97250da4e7a993f2bbca73a557900348  libstdc++-v3/include/bits/fstream.tcc
  33233142267fc4eb2c680b337c35a2e8  libstdc++-v3/include/bits/functexcept.h
  bf7b65d8a82432770b67bfea05f76a70  libstdc++-v3/include/bits/functional_hash.h
  4207c640a4bada8d84994722ee01802a  libstdc++-v3/include/bits/gslice.h
  3c40e01c0991cbb3d866f768c881e704  libstdc++-v3/include/bits/gslice_array.h
! 747ea12f6405b4d9609db30c8b675ca8  libstdc++-v3/include/bits/hashtable.h
  35c9015e71ec28798e37f5631e191089  libstdc++-v3/include/bits/hashtable_policy.h
  774d1c8adfc14db2a3d17978368b7a94  libstdc++-v3/include/bits/indirect_array.h
  cc00d4ad4bd18c6455cfe0d64a451447  libstdc++-v3/include/bits/ios_base.h
! 4a33231c4f3da16b8d048a90122f9e59  libstdc++-v3/include/bits/istream.tcc
  c9e773f121f52034017cbc6f543cdc10  libstdc++-v3/include/bits/list.tcc
  4b329575ae94521d03405651d83be5c3  libstdc++-v3/include/bits/locale_classes.h
  62727e19782c980c184170e77b458415  libstdc++-v3/include/bits/locale_classes.tcc
! 44310eaed2b4564283ac1dc18adba997  libstdc++-v3/include/bits/locale_conv.h
  38a077c57764371d274c5da42afec656  libstdc++-v3/include/bits/locale_facets.h
  269d61c4c92ef7015a5b7229b8f049e3  libstdc++-v3/include/bits/locale_facets.tcc
  958ccd825559a994271e7dd40885dd8c  libstdc++-v3/include/bits/locale_facets_nonio.h
--- 88837,88856 ----
  338c0938c131aa2295a2f65c6a700d00  libstdc++-v3/include/bits/enable_special_members.h
  6df81be9a82148c9b1d1cfcdf89c57cb  libstdc++-v3/include/bits/forward_list.h
  b1eda665774854543e9cc5f78747d80a  libstdc++-v3/include/bits/forward_list.tcc
! bb672a863031e407a01a3e498b0e00bb  libstdc++-v3/include/bits/fstream.tcc
  33233142267fc4eb2c680b337c35a2e8  libstdc++-v3/include/bits/functexcept.h
  bf7b65d8a82432770b67bfea05f76a70  libstdc++-v3/include/bits/functional_hash.h
  4207c640a4bada8d84994722ee01802a  libstdc++-v3/include/bits/gslice.h
  3c40e01c0991cbb3d866f768c881e704  libstdc++-v3/include/bits/gslice_array.h
! a8cf3d95154fc0192c15d7913ef22bc8  libstdc++-v3/include/bits/hashtable.h
  35c9015e71ec28798e37f5631e191089  libstdc++-v3/include/bits/hashtable_policy.h
  774d1c8adfc14db2a3d17978368b7a94  libstdc++-v3/include/bits/indirect_array.h
  cc00d4ad4bd18c6455cfe0d64a451447  libstdc++-v3/include/bits/ios_base.h
! 80a99439b2769bb4e48de8244fe8fbf5  libstdc++-v3/include/bits/istream.tcc
  c9e773f121f52034017cbc6f543cdc10  libstdc++-v3/include/bits/list.tcc
  4b329575ae94521d03405651d83be5c3  libstdc++-v3/include/bits/locale_classes.h
  62727e19782c980c184170e77b458415  libstdc++-v3/include/bits/locale_classes.tcc
! a1092d024a283b97f65f789fe3db5968  libstdc++-v3/include/bits/locale_conv.h
  38a077c57764371d274c5da42afec656  libstdc++-v3/include/bits/locale_facets.h
  269d61c4c92ef7015a5b7229b8f049e3  libstdc++-v3/include/bits/locale_facets.tcc
  958ccd825559a994271e7dd40885dd8c  libstdc++-v3/include/bits/locale_facets_nonio.h
*************** c9e773f121f52034017cbc6f543cdc10  libstd
*** 88455,88471 ****
  93c339fde000e78b3a7212cbff62e5c2  libstdc++-v3/include/bits/move.h
  f13f71d4c874fa7366b67b16589680a4  libstdc++-v3/include/bits/ostream.tcc
  bf4d38da115e3d9c7ebb029e7f99026a  libstdc++-v3/include/bits/ostream_insert.h
! ba55c3cef8fad8738c0113d2d43e5d80  libstdc++-v3/include/bits/parse_numbers.h
  63ac7d37bb8785a53dc0eea061f5f7f4  libstdc++-v3/include/bits/postypes.h
  ce8f5a0774b2c721ea07efebc091bb3d  libstdc++-v3/include/bits/predefined_ops.h
  83526f2821465f628e3fbe995936dbd1  libstdc++-v3/include/bits/ptr_traits.h
  b8fa9a4955e72e151a315d0ec313ab26  libstdc++-v3/include/bits/quoted_string.h
! 2101a74a8ed2eb332acd7e7192ebe4f4  libstdc++-v3/include/bits/random.h
  82cffdaec411d724ed3955c709b78cf0  libstdc++-v3/include/bits/random.tcc
  435b63fa25aff4083ff8c0c74195e000  libstdc++-v3/include/bits/range_access.h
! 0a84ba9528235a687d1c111f8ad8a865  libstdc++-v3/include/bits/regex.h
  f8da396033b041f0683cd6d3e3c35e49  libstdc++-v3/include/bits/regex.tcc
! 88cc9836fc81f27f8cd7e67a1eafc064  libstdc++-v3/include/bits/regex_automaton.h
  41c818acb838b922c969730ef5233be3  libstdc++-v3/include/bits/regex_automaton.tcc
  ddf585e15fb79f0e7e7a8d2189a64357  libstdc++-v3/include/bits/regex_compiler.h
  c51f1826e40c0a529fc611d4262acf6f  libstdc++-v3/include/bits/regex_compiler.tcc
--- 88861,88877 ----
  93c339fde000e78b3a7212cbff62e5c2  libstdc++-v3/include/bits/move.h
  f13f71d4c874fa7366b67b16589680a4  libstdc++-v3/include/bits/ostream.tcc
  bf4d38da115e3d9c7ebb029e7f99026a  libstdc++-v3/include/bits/ostream_insert.h
! 7f32146d8585e2b3df12be770d11f074  libstdc++-v3/include/bits/parse_numbers.h
  63ac7d37bb8785a53dc0eea061f5f7f4  libstdc++-v3/include/bits/postypes.h
  ce8f5a0774b2c721ea07efebc091bb3d  libstdc++-v3/include/bits/predefined_ops.h
  83526f2821465f628e3fbe995936dbd1  libstdc++-v3/include/bits/ptr_traits.h
  b8fa9a4955e72e151a315d0ec313ab26  libstdc++-v3/include/bits/quoted_string.h
! 0618c45c1a32a20281a20eb49ef24ad1  libstdc++-v3/include/bits/random.h
  82cffdaec411d724ed3955c709b78cf0  libstdc++-v3/include/bits/random.tcc
  435b63fa25aff4083ff8c0c74195e000  libstdc++-v3/include/bits/range_access.h
! 18208ab4fcb7d64b701791514287f4c8  libstdc++-v3/include/bits/regex.h
  f8da396033b041f0683cd6d3e3c35e49  libstdc++-v3/include/bits/regex.tcc
! 3dc4098913b5b8b8a26d976a948cef17  libstdc++-v3/include/bits/regex_automaton.h
  41c818acb838b922c969730ef5233be3  libstdc++-v3/include/bits/regex_automaton.tcc
  ddf585e15fb79f0e7e7a8d2189a64357  libstdc++-v3/include/bits/regex_compiler.h
  c51f1826e40c0a529fc611d4262acf6f  libstdc++-v3/include/bits/regex_compiler.tcc
*************** bcfc4f6420e156f313e5134606f70e18  libstd
*** 88477,88495 ****
  1a93ce1d739f404737146b6a1a4cebaf  libstdc++-v3/include/bits/regex_scanner.tcc
  406798bbd160315ee39b2f2a0a31c492  libstdc++-v3/include/bits/shared_ptr.h
  4628af319413df349cb341f017754bf4  libstdc++-v3/include/bits/shared_ptr_atomic.h
! c195182e74e436bd0c1312732e5a7063  libstdc++-v3/include/bits/shared_ptr_base.h
  abd9d5acbbc6548544e594820f168917  libstdc++-v3/include/bits/slice_array.h
  81a9105e594bdd4f31466efb0ea2591c  libstdc++-v3/include/bits/specfun.h
! a046bed66696adfb2a6c4a593d6a1e3d  libstdc++-v3/include/bits/sstream.tcc
  dca1017544bda4f3e231a60f4bfb96aa  libstdc++-v3/include/bits/std_mutex.h
  11add78efd9f165a0d9767f4ef18f5e4  libstdc++-v3/include/bits/stl_algo.h
  23ea4a3aeea06844a671d0edb8f31227  libstdc++-v3/include/bits/stl_algobase.h
! 243fe3e2f3c79e871cf74b93be35026e  libstdc++-v3/include/bits/stl_bvector.h
  5ca41a37aa22865a2e5acf8a62c8f437  libstdc++-v3/include/bits/stl_construct.h
  8fd1c24a11e47aa7313171f7d4fe3b0f  libstdc++-v3/include/bits/stl_deque.h
  c63289711664b96615c9b546c4af976e  libstdc++-v3/include/bits/stl_function.h
  e1dcf2ba39e03d6541d6804dddcf6c3f  libstdc++-v3/include/bits/stl_heap.h
! fa1c52cdfd2eecb575dca6d77070b658  libstdc++-v3/include/bits/stl_iterator.h
  5e0db7f463d8de067a2efdb81cd411ee  libstdc++-v3/include/bits/stl_iterator_base_funcs.h
  8a82f794191e4709b369e5b001811418  libstdc++-v3/include/bits/stl_iterator_base_types.h
  b08d97028761f7434c6ddc252c198fb2  libstdc++-v3/include/bits/stl_list.h
--- 88883,88901 ----
  1a93ce1d739f404737146b6a1a4cebaf  libstdc++-v3/include/bits/regex_scanner.tcc
  406798bbd160315ee39b2f2a0a31c492  libstdc++-v3/include/bits/shared_ptr.h
  4628af319413df349cb341f017754bf4  libstdc++-v3/include/bits/shared_ptr_atomic.h
! ba3a23151a07ef8ecdaabbfa3ef28f4f  libstdc++-v3/include/bits/shared_ptr_base.h
  abd9d5acbbc6548544e594820f168917  libstdc++-v3/include/bits/slice_array.h
  81a9105e594bdd4f31466efb0ea2591c  libstdc++-v3/include/bits/specfun.h
! bc2a92fa6af73bea1034cb9278a4f43d  libstdc++-v3/include/bits/sstream.tcc
  dca1017544bda4f3e231a60f4bfb96aa  libstdc++-v3/include/bits/std_mutex.h
  11add78efd9f165a0d9767f4ef18f5e4  libstdc++-v3/include/bits/stl_algo.h
  23ea4a3aeea06844a671d0edb8f31227  libstdc++-v3/include/bits/stl_algobase.h
! bda0d9ef249af749dfcfd5b911309af4  libstdc++-v3/include/bits/stl_bvector.h
  5ca41a37aa22865a2e5acf8a62c8f437  libstdc++-v3/include/bits/stl_construct.h
  8fd1c24a11e47aa7313171f7d4fe3b0f  libstdc++-v3/include/bits/stl_deque.h
  c63289711664b96615c9b546c4af976e  libstdc++-v3/include/bits/stl_function.h
  e1dcf2ba39e03d6541d6804dddcf6c3f  libstdc++-v3/include/bits/stl_heap.h
! b085fb64bc794ed72e574f4747e02e51  libstdc++-v3/include/bits/stl_iterator.h
  5e0db7f463d8de067a2efdb81cd411ee  libstdc++-v3/include/bits/stl_iterator_base_funcs.h
  8a82f794191e4709b369e5b001811418  libstdc++-v3/include/bits/stl_iterator_base_types.h
  b08d97028761f7434c6ddc252c198fb2  libstdc++-v3/include/bits/stl_list.h
*************** b08d97028761f7434c6ddc252c198fb2  libstd
*** 88497,88526 ****
  782a328d849a074c235ed9d44f07f8d0  libstdc++-v3/include/bits/stl_multimap.h
  93dcbd37eaf0741310e4c0bd0e345f5f  libstdc++-v3/include/bits/stl_multiset.h
  7e81280f87235c30dadf018e466e8267  libstdc++-v3/include/bits/stl_numeric.h
! eb68f6f22b22a7e683a29e73a8ee75ad  libstdc++-v3/include/bits/stl_pair.h
  1e8d9848331663b273447b434e7ace15  libstdc++-v3/include/bits/stl_queue.h
  4f0a6596c3e76d1f0a0cfe8b8cd28c76  libstdc++-v3/include/bits/stl_raw_storage_iter.h
  a2879dc3e90b975b5f70e47477c27168  libstdc++-v3/include/bits/stl_relops.h
  4f65fd5314ae1f69054f77a34f73d740  libstdc++-v3/include/bits/stl_set.h
! bd25b68e010234aa7db5f5bef0a38f5d  libstdc++-v3/include/bits/stl_stack.h
  d98c5fe528142289d2e259d80ab99c27  libstdc++-v3/include/bits/stl_tempbuf.h
  d6439da38b829bfdf252367966e5ddc9  libstdc++-v3/include/bits/stl_tree.h
  93ab3fa6a91e6efc833bc6a1ca3bf89d  libstdc++-v3/include/bits/stl_uninitialized.h
! 450be454277e5a9ad84d5049b5131102  libstdc++-v3/include/bits/stl_vector.h
  49539446b394a29c926a167d0b051dba  libstdc++-v3/include/bits/stream_iterator.h
  276be35c9477ef7283d9ba8a2fd42510  libstdc++-v3/include/bits/streambuf.tcc
  e87199cd46371590c4cfbe2ff987f6c1  libstdc++-v3/include/bits/streambuf_iterator.h
  6532e6b6d0c7ce5e9b976400f21b951d  libstdc++-v3/include/bits/stringfwd.h
  207ce93e7de98b9fa9fd904f3222a63b  libstdc++-v3/include/bits/uniform_int_dist.h
! a40fd981553cd695a843ad04af3fb501  libstdc++-v3/include/bits/unique_ptr.h
  326c3ab2b35df8d670ece50adcde9a25  libstdc++-v3/include/bits/unordered_map.h
  41a183efc2e69b2d9692947e8b840c14  libstdc++-v3/include/bits/unordered_set.h
  e8aa7f189d3620c78cbc4a1f9d45ebce  libstdc++-v3/include/bits/uses_allocator.h
  4c8da2d6a942ad7e0406edd77c4599ca  libstdc++-v3/include/bits/valarray_after.h
! 5b7bb96df253f3dfda2f7c7580efe0ee  libstdc++-v3/include/bits/valarray_array.h
  7ce06fbc3eefc9813f6699958e855f9d  libstdc++-v3/include/bits/valarray_array.tcc
  200ddf20e4d0c56f32fe0889b4b4a321  libstdc++-v3/include/bits/valarray_before.h
! 80102eb520f097c94fa1beff9f94a634  libstdc++-v3/include/bits/vector.tcc
  0e2b056c230c8e573a7fe89889dad435  libstdc++-v3/include/c/cassert
  7cd6b53dec5a702588a26ca5893178f2  libstdc++-v3/include/c/cctype
  bf8e4eeae50686cfd7f1a1b2176a0ec7  libstdc++-v3/include/c/cerrno
--- 88903,88932 ----
  782a328d849a074c235ed9d44f07f8d0  libstdc++-v3/include/bits/stl_multimap.h
  93dcbd37eaf0741310e4c0bd0e345f5f  libstdc++-v3/include/bits/stl_multiset.h
  7e81280f87235c30dadf018e466e8267  libstdc++-v3/include/bits/stl_numeric.h
! 1ba33e015f51df849e195f6f866914fb  libstdc++-v3/include/bits/stl_pair.h
  1e8d9848331663b273447b434e7ace15  libstdc++-v3/include/bits/stl_queue.h
  4f0a6596c3e76d1f0a0cfe8b8cd28c76  libstdc++-v3/include/bits/stl_raw_storage_iter.h
  a2879dc3e90b975b5f70e47477c27168  libstdc++-v3/include/bits/stl_relops.h
  4f65fd5314ae1f69054f77a34f73d740  libstdc++-v3/include/bits/stl_set.h
! e5ee6a06d4254b26a0c3f5e7bf60cf2a  libstdc++-v3/include/bits/stl_stack.h
  d98c5fe528142289d2e259d80ab99c27  libstdc++-v3/include/bits/stl_tempbuf.h
  d6439da38b829bfdf252367966e5ddc9  libstdc++-v3/include/bits/stl_tree.h
  93ab3fa6a91e6efc833bc6a1ca3bf89d  libstdc++-v3/include/bits/stl_uninitialized.h
! e50d1cc8445ab5835920be62f880cb32  libstdc++-v3/include/bits/stl_vector.h
  49539446b394a29c926a167d0b051dba  libstdc++-v3/include/bits/stream_iterator.h
  276be35c9477ef7283d9ba8a2fd42510  libstdc++-v3/include/bits/streambuf.tcc
  e87199cd46371590c4cfbe2ff987f6c1  libstdc++-v3/include/bits/streambuf_iterator.h
  6532e6b6d0c7ce5e9b976400f21b951d  libstdc++-v3/include/bits/stringfwd.h
  207ce93e7de98b9fa9fd904f3222a63b  libstdc++-v3/include/bits/uniform_int_dist.h
! 68b8f1986f5035c8c9e95c7d56048781  libstdc++-v3/include/bits/unique_ptr.h
  326c3ab2b35df8d670ece50adcde9a25  libstdc++-v3/include/bits/unordered_map.h
  41a183efc2e69b2d9692947e8b840c14  libstdc++-v3/include/bits/unordered_set.h
  e8aa7f189d3620c78cbc4a1f9d45ebce  libstdc++-v3/include/bits/uses_allocator.h
  4c8da2d6a942ad7e0406edd77c4599ca  libstdc++-v3/include/bits/valarray_after.h
! e6bf6e0e784b7c9668d65e5209ce8c43  libstdc++-v3/include/bits/valarray_array.h
  7ce06fbc3eefc9813f6699958e855f9d  libstdc++-v3/include/bits/valarray_array.tcc
  200ddf20e4d0c56f32fe0889b4b4a321  libstdc++-v3/include/bits/valarray_before.h
! 723542afb6f2f43f17c992b3bdcd3311  libstdc++-v3/include/bits/vector.tcc
  0e2b056c230c8e573a7fe89889dad435  libstdc++-v3/include/c/cassert
  7cd6b53dec5a702588a26ca5893178f2  libstdc++-v3/include/c/cctype
  bf8e4eeae50686cfd7f1a1b2176a0ec7  libstdc++-v3/include/c/cerrno
*************** b3f54851af9ac47535efbff2845fbd90  libstd
*** 88639,88645 ****
  c0fa7e691a381e8c8ea70999b8308405  libstdc++-v3/include/debug/set
  470fea105f83340d61c3a8a9bf956224  libstdc++-v3/include/debug/set.h
  d0c83208a27ffa2cf72a36ed830b1b12  libstdc++-v3/include/debug/stl_iterator.h
! efeeaa1ab1b8e409f22acf2410779a6e  libstdc++-v3/include/debug/string
  36af3fe40dfcec811c4bbf35077511f8  libstdc++-v3/include/debug/unordered_map
  7bf85d039a88de2c86a2a55d4a29d928  libstdc++-v3/include/debug/unordered_set
  626d71f3e8e6a02fcc72fccc28984bc1  libstdc++-v3/include/debug/vector
--- 89045,89051 ----
  c0fa7e691a381e8c8ea70999b8308405  libstdc++-v3/include/debug/set
  470fea105f83340d61c3a8a9bf956224  libstdc++-v3/include/debug/set.h
  d0c83208a27ffa2cf72a36ed830b1b12  libstdc++-v3/include/debug/stl_iterator.h
! 8cae58c5de68f7c8304b4ec33197f736  libstdc++-v3/include/debug/string
  36af3fe40dfcec811c4bbf35077511f8  libstdc++-v3/include/debug/unordered_map
  7bf85d039a88de2c86a2a55d4a29d928  libstdc++-v3/include/debug/unordered_set
  626d71f3e8e6a02fcc72fccc28984bc1  libstdc++-v3/include/debug/vector
*************** c044fd0c3013c55ef7f3aa630ca6322c  libstd
*** 88651,88658 ****
  85e52e15dfc79b200b63888787b2490b  libstdc++-v3/include/experimental/bits/erase_if.h
  e1a4e8f91e7ca6ec168ea0a76ba9ceb8  libstdc++-v3/include/experimental/bits/fs_dir.h
  b6975747902d899871e3c45b472dc83a  libstdc++-v3/include/experimental/bits/fs_fwd.h
! 6acd9b133367124e7a4b5e3973963bbb  libstdc++-v3/include/experimental/bits/fs_ops.h
! adfb7c233abfc695a28f36108d2bf01d  libstdc++-v3/include/experimental/bits/fs_path.h
  2111ac06fd0b7c949acb57681f8764ab  libstdc++-v3/include/experimental/bits/lfts_config.h
  9ccc024176f90738e6b8485c391860a8  libstdc++-v3/include/experimental/bits/shared_ptr.h
  6bb7ea6377349f019c42e6365ccc3cd7  libstdc++-v3/include/experimental/bits/string_view.tcc
--- 89057,89064 ----
  85e52e15dfc79b200b63888787b2490b  libstdc++-v3/include/experimental/bits/erase_if.h
  e1a4e8f91e7ca6ec168ea0a76ba9ceb8  libstdc++-v3/include/experimental/bits/fs_dir.h
  b6975747902d899871e3c45b472dc83a  libstdc++-v3/include/experimental/bits/fs_fwd.h
! 7587ea7f600769f245b2cd89a1a3e40c  libstdc++-v3/include/experimental/bits/fs_ops.h
! df19779896cf66fbfcecdedba18097cc  libstdc++-v3/include/experimental/bits/fs_path.h
  2111ac06fd0b7c949acb57681f8764ab  libstdc++-v3/include/experimental/bits/lfts_config.h
  9ccc024176f90738e6b8485c391860a8  libstdc++-v3/include/experimental/bits/shared_ptr.h
  6bb7ea6377349f019c42e6365ccc3cd7  libstdc++-v3/include/experimental/bits/string_view.tcc
*************** fb661a87aecc53c876e74ee3c46582f1  libstd
*** 88665,88679 ****
  cfe5bab2e8a6e1cfbfba279ecd095b9b  libstdc++-v3/include/experimental/list
  5ea3575f34c060bd14c6163b5c02910d  libstdc++-v3/include/experimental/map
  de58e936a54a53b05ba84111ae57c3bc  libstdc++-v3/include/experimental/memory
! a58ca4218450c4c272409fbaa5e80400  libstdc++-v3/include/experimental/memory_resource
  86c5208bc19a50ccb6aae69928c38db7  libstdc++-v3/include/experimental/numeric
  a1a1067550444547160071aaf9c60f9e  libstdc++-v3/include/experimental/optional
  e219d46576c4722d3a949b4f53d80f07  libstdc++-v3/include/experimental/propagate_const
  5ecb05a63ef63286d0f60baeb682bc71  libstdc++-v3/include/experimental/random
  74f47c9c081b9558c023bac72c5dcc3a  libstdc++-v3/include/experimental/ratio
! 0108c04a8b7b851ad1a2acd13bc2203a  libstdc++-v3/include/experimental/regex
  a51c81b31b566c5c7cf05e98947fa400  libstdc++-v3/include/experimental/set
! 65f956117da2576b540f86ab1c2fa61a  libstdc++-v3/include/experimental/string
  10f40f9df531b360d86c95931de91a77  libstdc++-v3/include/experimental/string_view
  701fc2ef037d64868d972feb69e5c17b  libstdc++-v3/include/experimental/system_error
  f1eef5c2321a7bbfbfa9f4fb4b9cd1c9  libstdc++-v3/include/experimental/tuple
--- 89071,89085 ----
  cfe5bab2e8a6e1cfbfba279ecd095b9b  libstdc++-v3/include/experimental/list
  5ea3575f34c060bd14c6163b5c02910d  libstdc++-v3/include/experimental/map
  de58e936a54a53b05ba84111ae57c3bc  libstdc++-v3/include/experimental/memory
! b543e818107d5ffb7abd59efb6be18ef  libstdc++-v3/include/experimental/memory_resource
  86c5208bc19a50ccb6aae69928c38db7  libstdc++-v3/include/experimental/numeric
  a1a1067550444547160071aaf9c60f9e  libstdc++-v3/include/experimental/optional
  e219d46576c4722d3a949b4f53d80f07  libstdc++-v3/include/experimental/propagate_const
  5ecb05a63ef63286d0f60baeb682bc71  libstdc++-v3/include/experimental/random
  74f47c9c081b9558c023bac72c5dcc3a  libstdc++-v3/include/experimental/ratio
! 14cc4ec282a2eeb0f69a7d3d9c2e3b21  libstdc++-v3/include/experimental/regex
  a51c81b31b566c5c7cf05e98947fa400  libstdc++-v3/include/experimental/set
! a028c3ab4838949b8098493676022c3c  libstdc++-v3/include/experimental/string
  10f40f9df531b360d86c95931de91a77  libstdc++-v3/include/experimental/string_view
  701fc2ef037d64868d972feb69e5c17b  libstdc++-v3/include/experimental/system_error
  f1eef5c2321a7bbfbfa9f4fb4b9cd1c9  libstdc++-v3/include/experimental/tuple
*************** c1a36423cdef39ead65b200d11c2f58c  libstd
*** 88700,88706 ****
  7239e1410f3603a4cb3d7f633f71ccde  libstdc++-v3/include/ext/malloc_allocator.h
  09653906f93cb28a1e604bbfa7cb2248  libstdc++-v3/include/ext/memory
  0b0dc8f5c2f207df187366824006fbf9  libstdc++-v3/include/ext/mt_allocator.h
! e1ca7f1c6fb027504a240a33bca2a557  libstdc++-v3/include/ext/new_allocator.h
  026717e91ef78349a4ca8b3270ff7ca1  libstdc++-v3/include/ext/numeric
  b57f280fe7411417ef511759784849e7  libstdc++-v3/include/ext/numeric_traits.h
  a65d5252ee74479a499f6bcb64d0c1f3  libstdc++-v3/include/ext/pb_ds/assoc_container.hpp
--- 89106,89112 ----
  7239e1410f3603a4cb3d7f633f71ccde  libstdc++-v3/include/ext/malloc_allocator.h
  09653906f93cb28a1e604bbfa7cb2248  libstdc++-v3/include/ext/memory
  0b0dc8f5c2f207df187366824006fbf9  libstdc++-v3/include/ext/mt_allocator.h
! 44955b4f8b4ea01b007f809ef3d4bdb1  libstdc++-v3/include/ext/new_allocator.h
  026717e91ef78349a4ca8b3270ff7ca1  libstdc++-v3/include/ext/numeric
  b57f280fe7411417ef511759784849e7  libstdc++-v3/include/ext/numeric_traits.h
  a65d5252ee74479a499f6bcb64d0c1f3  libstdc++-v3/include/ext/pb_ds/assoc_container.hpp
*************** e65ba1ecda5d029cecf4ec8ce8295643  libstd
*** 88947,88953 ****
  0721a3fbb2ac575e58330df8fabe70ed  libstdc++-v3/include/ext/pb_ds/tree_policy.hpp
  ef915c91c0376f73260c64937ac9e34d  libstdc++-v3/include/ext/pb_ds/trie_policy.hpp
  a346905ef4d46ce3ac742cf27d99c045  libstdc++-v3/include/ext/pod_char_traits.h
! 16490a9f133714954c122665702687fd  libstdc++-v3/include/ext/pointer.h
  916b7173eeff52f19c2c24da079b7d35  libstdc++-v3/include/ext/pool_allocator.h
  1afb7c72c88c99e9fdb7d7d70303f813  libstdc++-v3/include/ext/random
  54640c89c94b1d9807445620414aa1ee  libstdc++-v3/include/ext/random.tcc
--- 89353,89359 ----
  0721a3fbb2ac575e58330df8fabe70ed  libstdc++-v3/include/ext/pb_ds/tree_policy.hpp
  ef915c91c0376f73260c64937ac9e34d  libstdc++-v3/include/ext/pb_ds/trie_policy.hpp
  a346905ef4d46ce3ac742cf27d99c045  libstdc++-v3/include/ext/pod_char_traits.h
! 7497b85678d9a1f7708a87643b3e672f  libstdc++-v3/include/ext/pointer.h
  916b7173eeff52f19c2c24da079b7d35  libstdc++-v3/include/ext/pool_allocator.h
  1afb7c72c88c99e9fdb7d7d70303f813  libstdc++-v3/include/ext/random
  54640c89c94b1d9807445620414aa1ee  libstdc++-v3/include/ext/random.tcc
*************** ab8c66b09a866c6ebf1ee4c66a42ed8e  libstd
*** 89049,89068 ****
  07dd14bd89de98cd98a9be7df560b1f6  libstdc++-v3/include/std/array
  47450c19f064df8f4626abaf59e76056  libstdc++-v3/include/std/atomic
  c901579f7cc4317131404166dc863abe  libstdc++-v3/include/std/bitset
! 7ad6388b9ff453b72d35cad78bf3ce0d  libstdc++-v3/include/std/chrono
  fa87c6bbe2315225e7c19bd3ef21bc0c  libstdc++-v3/include/std/codecvt
! e78fcc835f07ffd3506928ef697daf38  libstdc++-v3/include/std/complex
! b0e63f9d467dc4d30057e8332fb881cb  libstdc++-v3/include/std/condition_variable
  52e71286840cd721cd7d62041d05f0fd  libstdc++-v3/include/std/deque
  60dfc425eb5b809b73d9a7335d16c878  libstdc++-v3/include/std/forward_list
  b5cfb151507ebe2932159acd77a927a6  libstdc++-v3/include/std/fstream
! f11609a13f16d1f3dc732adf478a9983  libstdc++-v3/include/std/functional
! b0af42c19c4153e3a84d1e6a3592c576  libstdc++-v3/include/std/future
  296fe913c506073fd36284585afe72c1  libstdc++-v3/include/std/iomanip
  4de468438d1fd8a73a3c267d70fae515  libstdc++-v3/include/std/ios
  a17c187f7804b2183221266b58efcd14  libstdc++-v3/include/std/iosfwd
  fee19d695332d11de88b42e8473e3c25  libstdc++-v3/include/std/iostream
! 4f0b1f17a5e0b933d253d43db72a25d1  libstdc++-v3/include/std/istream
  22c3e5578d65faf2eccc484db53f3396  libstdc++-v3/include/std/iterator
  a4428d83d89681a780cc9f01c788d526  libstdc++-v3/include/std/limits
  d8714613d81a828b255a76473de1b2e4  libstdc++-v3/include/std/list
--- 89455,89474 ----
  07dd14bd89de98cd98a9be7df560b1f6  libstdc++-v3/include/std/array
  47450c19f064df8f4626abaf59e76056  libstdc++-v3/include/std/atomic
  c901579f7cc4317131404166dc863abe  libstdc++-v3/include/std/bitset
! e47d1cd5a81a727fa0e04cb23fc40380  libstdc++-v3/include/std/chrono
  fa87c6bbe2315225e7c19bd3ef21bc0c  libstdc++-v3/include/std/codecvt
! fd2924b5f6a5557fee85c7e15ea4e13f  libstdc++-v3/include/std/complex
! 69a905b2f08405a68034d6d54b4c11bd  libstdc++-v3/include/std/condition_variable
  52e71286840cd721cd7d62041d05f0fd  libstdc++-v3/include/std/deque
  60dfc425eb5b809b73d9a7335d16c878  libstdc++-v3/include/std/forward_list
  b5cfb151507ebe2932159acd77a927a6  libstdc++-v3/include/std/fstream
! 9fba27f0cdc925ecbb2dd2a631a8a679  libstdc++-v3/include/std/functional
! e6fbd650e55c4ff0f3126bf66345dd1c  libstdc++-v3/include/std/future
  296fe913c506073fd36284585afe72c1  libstdc++-v3/include/std/iomanip
  4de468438d1fd8a73a3c267d70fae515  libstdc++-v3/include/std/ios
  a17c187f7804b2183221266b58efcd14  libstdc++-v3/include/std/iosfwd
  fee19d695332d11de88b42e8473e3c25  libstdc++-v3/include/std/iostream
! 2d75d646cc8ef99796c7d6060f30ad6c  libstdc++-v3/include/std/istream
  22c3e5578d65faf2eccc484db53f3396  libstdc++-v3/include/std/iterator
  a4428d83d89681a780cc9f01c788d526  libstdc++-v3/include/std/limits
  d8714613d81a828b255a76473de1b2e4  libstdc++-v3/include/std/list
*************** a06b7297e766b6804e56479706320bcf  libstd
*** 89079,89085 ****
  c2734babe28780b48bfd496fd6c1b1d9  libstdc++-v3/include/std/scoped_allocator
  6433266c4751eb68867019c74ee50d33  libstdc++-v3/include/std/set
  edd1a66743f0635181ef64e7abe2e194  libstdc++-v3/include/std/shared_mutex
! c86b5c331d2fb2438c72b3dd1efce58f  libstdc++-v3/include/std/sstream
  0a4c7d11bfe241d3d4a81336c3d6e1d8  libstdc++-v3/include/std/stack
  e1890cb0c780d3d3500dc2e8051f9cbc  libstdc++-v3/include/std/stdexcept
  64501e3b2fbc4c4fcc6b9fd5371cb059  libstdc++-v3/include/std/streambuf
--- 89485,89491 ----
  c2734babe28780b48bfd496fd6c1b1d9  libstdc++-v3/include/std/scoped_allocator
  6433266c4751eb68867019c74ee50d33  libstdc++-v3/include/std/set
  edd1a66743f0635181ef64e7abe2e194  libstdc++-v3/include/std/shared_mutex
! 1fd4d70ad0f4695c6976965626e6d7a4  libstdc++-v3/include/std/sstream
  0a4c7d11bfe241d3d4a81336c3d6e1d8  libstdc++-v3/include/std/stack
  e1890cb0c780d3d3500dc2e8051f9cbc  libstdc++-v3/include/std/stdexcept
  64501e3b2fbc4c4fcc6b9fd5371cb059  libstdc++-v3/include/std/streambuf
*************** e1890cb0c780d3d3500dc2e8051f9cbc  libstd
*** 89087,89097 ****
  56ecd8ef9e669ad9046f93b40c6adeb0  libstdc++-v3/include/std/system_error
  dccdfe68e5427fd832cd0354370e6c06  libstdc++-v3/include/std/thread
  46f481cd2eb91f7888c38d80496d3388  libstdc++-v3/include/std/tuple
! 4c551da2d8c7c74501c172f3f883d84b  libstdc++-v3/include/std/type_traits
  66c41d38d5277a5c6662a5c974f65fc4  libstdc++-v3/include/std/typeindex
  b23b42f90aab11eae50546959be31645  libstdc++-v3/include/std/unordered_map
  dfd5ad58503f3b684221edc4f6e722ff  libstdc++-v3/include/std/unordered_set
! cbcf16cc698ffffebcc271ac189482a6  libstdc++-v3/include/std/utility
  f526f3879b4c9665aa7a8c04a63fc1c2  libstdc++-v3/include/std/valarray
  2c27073c445f8e8011e74d43c4072ce1  libstdc++-v3/include/std/vector
  0377f17bb98e9df25d1be5bf82482eb9  libstdc++-v3/include/tr1/array
--- 89493,89503 ----
  56ecd8ef9e669ad9046f93b40c6adeb0  libstdc++-v3/include/std/system_error
  dccdfe68e5427fd832cd0354370e6c06  libstdc++-v3/include/std/thread
  46f481cd2eb91f7888c38d80496d3388  libstdc++-v3/include/std/tuple
! a7d4eea8fe7a85c4559566bfd44f7ce2  libstdc++-v3/include/std/type_traits
  66c41d38d5277a5c6662a5c974f65fc4  libstdc++-v3/include/std/typeindex
  b23b42f90aab11eae50546959be31645  libstdc++-v3/include/std/unordered_map
  dfd5ad58503f3b684221edc4f6e722ff  libstdc++-v3/include/std/unordered_set
! 12c3adde023abfe8d05859541aa17154  libstdc++-v3/include/std/utility
  f526f3879b4c9665aa7a8c04a63fc1c2  libstdc++-v3/include/std/valarray
  2c27073c445f8e8011e74d43c4072ce1  libstdc++-v3/include/std/vector
  0377f17bb98e9df25d1be5bf82482eb9  libstdc++-v3/include/tr1/array
*************** a893581eb2033e79d06ce0277598edef  libstd
*** 89174,89180 ****
  6efdebcd782cfdc700423bda254ea457  libstdc++-v3/libsupc++/bad_cast.cc
  e2422d76edee12a7de83dfe0db8385e0  libstdc++-v3/libsupc++/bad_typeid.cc
  9abc932756ac4cc540349e296beed634  libstdc++-v3/libsupc++/class_type_info.cc
! 5748556e1a90e8872155e925e704b1e7  libstdc++-v3/libsupc++/cxxabi.h
  ac791aabbad4b4a0202a71b083e8e648  libstdc++-v3/libsupc++/cxxabi_forced.h
  95dd3a0e8ed4779ba86fc3621ebf78a0  libstdc++-v3/libsupc++/del_op.cc
  2c246d364a352f1d34b83913a05fee11  libstdc++-v3/libsupc++/del_opnt.cc
--- 89580,89586 ----
  6efdebcd782cfdc700423bda254ea457  libstdc++-v3/libsupc++/bad_cast.cc
  e2422d76edee12a7de83dfe0db8385e0  libstdc++-v3/libsupc++/bad_typeid.cc
  9abc932756ac4cc540349e296beed634  libstdc++-v3/libsupc++/class_type_info.cc
! 60a955e0c254382e3828f8426fbedc9e  libstdc++-v3/libsupc++/cxxabi.h
  ac791aabbad4b4a0202a71b083e8e648  libstdc++-v3/libsupc++/cxxabi_forced.h
  95dd3a0e8ed4779ba86fc3621ebf78a0  libstdc++-v3/libsupc++/del_op.cc
  2c246d364a352f1d34b83913a05fee11  libstdc++-v3/libsupc++/del_opnt.cc
*************** e7a447f4ecc88a94e22d2d29b36695bb  libstd
*** 89244,89250 ****
  1eb61946b03363aaa3abaa07798d2bf5  libstdc++-v3/python/hook.in
  68b329da9893e34099c7d8ad5cb9c940  libstdc++-v3/python/libstdcxx/__init__.py
  80cd5897795f46a84d32406b892ae0fc  libstdc++-v3/python/libstdcxx/v6/__init__.py
! 419d316287eefb0e843c3e8bc4a83f39  libstdc++-v3/python/libstdcxx/v6/printers.py
  7e3dc61e504bdb245728b286998bbb5a  libstdc++-v3/python/libstdcxx/v6/xmethods.py
  b1441422cec6381d9285b7681b666124  libstdc++-v3/scripts/check_compile
  533e594add6e79910b0e557ba690fac6  libstdc++-v3/scripts/check_performance
--- 89650,89656 ----
  1eb61946b03363aaa3abaa07798d2bf5  libstdc++-v3/python/hook.in
  68b329da9893e34099c7d8ad5cb9c940  libstdc++-v3/python/libstdcxx/__init__.py
  80cd5897795f46a84d32406b892ae0fc  libstdc++-v3/python/libstdcxx/v6/__init__.py
! 7fa35e736d17e3fda089d71ca998e319  libstdc++-v3/python/libstdcxx/v6/printers.py
  7e3dc61e504bdb245728b286998bbb5a  libstdc++-v3/python/libstdcxx/v6/xmethods.py
  b1441422cec6381d9285b7681b666124  libstdc++-v3/scripts/check_compile
  533e594add6e79910b0e557ba690fac6  libstdc++-v3/scripts/check_performance
*************** f1a84a17158780aaa37927191db4463a  libstd
*** 89260,89269 ****
  f2ba4f7f43f29e778b2eb31c15026a33  libstdc++-v3/scripts/testsuite_flags.in
  80eb57beb8281383314297416c2b1343  libstdc++-v3/src/Makefile.am
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! 30665c8b6d46064d472972b057ac96cb  libstdc++-v3/src/c++11/Makefile.am
! a71513788b148a7ade2ec04c6070aa8e  libstdc++-v3/src/c++11/Makefile.in
  4fdcbea8f299a029c4f5ea8d59f630c6  libstdc++-v3/src/c++11/chrono.cc
! a6ad6bfb7cce19b9cdf432a0e30251b9  libstdc++-v3/src/c++11/codecvt.cc
  8bfae905b9eab9ab26ee92eb3978ab4a  libstdc++-v3/src/c++11/compatibility-atomic-c++0x.cc
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  4c716fd1981b6de7c33c9ee168aaa28d  libstdc++-v3/src/c++11/compatibility-chrono.cc
--- 89666,89675 ----
  f2ba4f7f43f29e778b2eb31c15026a33  libstdc++-v3/scripts/testsuite_flags.in
  80eb57beb8281383314297416c2b1343  libstdc++-v3/src/Makefile.am
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! 1ec1238fad994bbc30db41d96ae20e80  libstdc++-v3/src/c++11/Makefile.am
! 33ae3c27ade0e0ee2ce79ab31fc752ba  libstdc++-v3/src/c++11/Makefile.in
  4fdcbea8f299a029c4f5ea8d59f630c6  libstdc++-v3/src/c++11/chrono.cc
! ddb91a0a0bd166376ac31a87bca529b6  libstdc++-v3/src/c++11/codecvt.cc
  8bfae905b9eab9ab26ee92eb3978ab4a  libstdc++-v3/src/c++11/compatibility-atomic-c++0x.cc
  5d0b8ad9f6d2ee8e8040a8b666bf9e40  libstdc++-v3/src/c++11/compatibility-c++0x.cc
  4c716fd1981b6de7c33c9ee168aaa28d  libstdc++-v3/src/c++11/compatibility-chrono.cc
*************** f46a3bd56f96f2edfe7c1cee363ec7f6  libstd
*** 89275,89285 ****
  8b1fca2685592e27c6e2512aab409c53  libstdc++-v3/src/c++11/cow-shim_facets.cc
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  373fd73849df9a6375db3569ae20b005  libstdc++-v3/src/c++11/cow-stdexcept.cc
! f24a3851a742dd9c9e641146183b51a8  libstdc++-v3/src/c++11/cow-string-inst.cc
! 2fc29df6c120b834cdf25d9a94bb04be  libstdc++-v3/src/c++11/cow-wstring-inst.cc
  a85f17026568d8b29a5918c5fdb0de37  libstdc++-v3/src/c++11/ctype.cc
  41ee708e71077f109227fa0484ffad3a  libstdc++-v3/src/c++11/cxx11-hash_tr1.cc
! bcf497f5dbefc12d9990f4efe488613f  libstdc++-v3/src/c++11/cxx11-ios_failure.cc
  22e6b1d711ad689a29e2eb38cd9dcef9  libstdc++-v3/src/c++11/cxx11-locale-inst.cc
  7a654514ef56973ab346e80eec81da61  libstdc++-v3/src/c++11/cxx11-shim_facets.cc
  db46283df4058e114555a40560f0edf1  libstdc++-v3/src/c++11/cxx11-stdexcept.cc
--- 89681,89693 ----
  8b1fca2685592e27c6e2512aab409c53  libstdc++-v3/src/c++11/cow-shim_facets.cc
  a1e95554d798e75aaf108cf99555acbe  libstdc++-v3/src/c++11/cow-sstream-inst.cc
  373fd73849df9a6375db3569ae20b005  libstdc++-v3/src/c++11/cow-stdexcept.cc
! cee2c10da382a93667cbdc4433dd7896  libstdc++-v3/src/c++11/cow-string-inst.cc
! d8952354976233ae7082081f9f010633  libstdc++-v3/src/c++11/cow-string-io-inst.cc
! 24a19a1dabcd0ba04c8edeb4a6c7f908  libstdc++-v3/src/c++11/cow-wstring-inst.cc
! 5b9eae29f8aa4542af3707538957c782  libstdc++-v3/src/c++11/cow-wstring-io-inst.cc
  a85f17026568d8b29a5918c5fdb0de37  libstdc++-v3/src/c++11/ctype.cc
  41ee708e71077f109227fa0484ffad3a  libstdc++-v3/src/c++11/cxx11-hash_tr1.cc
! d2ae1fa1c1f691718ba0a0674ef4bbda  libstdc++-v3/src/c++11/cxx11-ios_failure.cc
  22e6b1d711ad689a29e2eb38cd9dcef9  libstdc++-v3/src/c++11/cxx11-locale-inst.cc
  7a654514ef56973ab346e80eec81da61  libstdc++-v3/src/c++11/cxx11-shim_facets.cc
  db46283df4058e114555a40560f0edf1  libstdc++-v3/src/c++11/cxx11-stdexcept.cc
*************** db46283df4058e114555a40560f0edf1  libstd
*** 89287,89296 ****
  301aa7be0da00bf9f33aa25e9cc98a1c  libstdc++-v3/src/c++11/debug.cc
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! 65c03679f047eab1b1805a5caab59cd7  libstdc++-v3/src/c++11/functexcept.cc
! 8b7ae1ec86163fba3300d2d247bf5e2c  libstdc++-v3/src/c++11/functional.cc
  01d62c820853f481263bf4d1fd91d8cc  libstdc++-v3/src/c++11/futex.cc
! 27dba8d259a81bc5f16a882f7943ef54  libstdc++-v3/src/c++11/future.cc
  d4027904adfda4e418b5d2c532474226  libstdc++-v3/src/c++11/hash_c++0x.cc
  fe477e19aa897ffe539f646b20b7c86e  libstdc++-v3/src/c++11/hashtable_c++0x.cc
  3c9325ecc591a7d88e628e2bcb8756b4  libstdc++-v3/src/c++11/ios-inst.cc
--- 89695,89704 ----
  301aa7be0da00bf9f33aa25e9cc98a1c  libstdc++-v3/src/c++11/debug.cc
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  3d20bf0fe161fc775c7cc0c2c7c65feb  libstdc++-v3/src/c++11/fstream-inst.cc
! 37cd8c4001c7a6f06f28451084af55b4  libstdc++-v3/src/c++11/functexcept.cc
! b2705345c962d9811ff329a71f34b25b  libstdc++-v3/src/c++11/functional.cc
  01d62c820853f481263bf4d1fd91d8cc  libstdc++-v3/src/c++11/futex.cc
! 42579edece2c6d9f10d2c9e3e8b3fba1  libstdc++-v3/src/c++11/future.cc
  d4027904adfda4e418b5d2c532474226  libstdc++-v3/src/c++11/hash_c++0x.cc
  fe477e19aa897ffe539f646b20b7c86e  libstdc++-v3/src/c++11/hashtable_c++0x.cc
  3c9325ecc591a7d88e628e2bcb8756b4  libstdc++-v3/src/c++11/ios-inst.cc
*************** e9d44c2169660ed6bc1e8516ed52a842  libstd
*** 89303,89320 ****
  f7b5ef65fbfed2e463933be1191cfa7f  libstdc++-v3/src/c++11/ostream-inst.cc
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  4e546dbc572fb57a3082269cd514bfa4  libstdc++-v3/src/c++11/random.cc
! 90f66a9e061cbacc88c20dde2920216e  libstdc++-v3/src/c++11/regex.cc
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! 8f56cfd106f4295a2b1f01b447b17aa8  libstdc++-v3/src/c++11/snprintf_lite.cc
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  3579daf427fc8470e01448d5a9e41948  libstdc++-v3/src/c++11/streambuf-inst.cc
  cf343b483576d1669d449cdce05e501b  libstdc++-v3/src/c++11/string-inst.cc
! 033d3ce4f10d74002e43b42bb837de6e  libstdc++-v3/src/c++11/system_error.cc
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! 79ad7f84e277fb1bedafb39e75d84d09  libstdc++-v3/src/c++98/Makefile.am
! 8b2e26a6d276238e7e694e72c27e9e0a  libstdc++-v3/src/c++98/Makefile.in
  a96ba42bdfd5fdbce71e30cbf9ddbf13  libstdc++-v3/src/c++98/allocator-inst.cc
  989480a45c998a9eed8e88b9652aa4c4  libstdc++-v3/src/c++98/bitmap_allocator.cc
  890d98dfdda3f21718dae699bf0a7f19  libstdc++-v3/src/c++98/codecvt.cc
--- 89711,89731 ----
  f7b5ef65fbfed2e463933be1191cfa7f  libstdc++-v3/src/c++11/ostream-inst.cc
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  4e546dbc572fb57a3082269cd514bfa4  libstdc++-v3/src/c++11/random.cc
! 00f2b681c831a8945b09c9386b86e6b4  libstdc++-v3/src/c++11/regex.cc
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! c15926372721201705e2ac479d0422e1  libstdc++-v3/src/c++11/snprintf_lite.cc
! 33c6e3fdf9cd31c8d34c038410dabe7b  libstdc++-v3/src/c++11/sso_string.cc
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  3579daf427fc8470e01448d5a9e41948  libstdc++-v3/src/c++11/streambuf-inst.cc
  cf343b483576d1669d449cdce05e501b  libstdc++-v3/src/c++11/string-inst.cc
! d1284956f5f69e2661ff4eee4d67fb51  libstdc++-v3/src/c++11/string-io-inst.cc
! 0d50f3964f2d20235ad6d3b4fd782aaf  libstdc++-v3/src/c++11/system_error.cc
  f88115f2714e94869f624624336d09f9  libstdc++-v3/src/c++11/thread.cc
  bf5130bf9ce6f048b755a0d67c8d582a  libstdc++-v3/src/c++11/wlocale-inst.cc
  991fdb27136efc6f8edf92f2afa382aa  libstdc++-v3/src/c++11/wstring-inst.cc
! 47bbd968170f15f4f14fbdcfd6c26005  libstdc++-v3/src/c++11/wstring-io-inst.cc
! 315b2adff8c870720304ef1808876d96  libstdc++-v3/src/c++98/Makefile.am
! 35e3f33342ef982cd287042d9556550f  libstdc++-v3/src/c++98/Makefile.in
  a96ba42bdfd5fdbce71e30cbf9ddbf13  libstdc++-v3/src/c++98/allocator-inst.cc
  989480a45c998a9eed8e88b9652aa4c4  libstdc++-v3/src/c++98/bitmap_allocator.cc
  890d98dfdda3f21718dae699bf0a7f19  libstdc++-v3/src/c++98/codecvt.cc
*************** d5f8d5c20149ef20181115db5d6d1079  libstd
*** 89330,89336 ****
  b5a6426cd78a248d444c396d17b39907  libstdc++-v3/src/c++98/hash-long-double-tr1-aux.cc
  27fded860f1701c802db50b66f79bba5  libstdc++-v3/src/c++98/hash_tr1.cc
  cfaa81c6f707f2c68b2d8341ec2d1a0a  libstdc++-v3/src/c++98/hashtable_tr1.cc
! 01f212fed94daf4143e70f543738a72b  libstdc++-v3/src/c++98/ios_failure.cc
  bbb991efa215fe070075ec6b07b86c4b  libstdc++-v3/src/c++98/ios_init.cc
  14fcaa4cbfc3d385eb2cab6a2161bcdb  libstdc++-v3/src/c++98/ios_locale.cc
  f0c824c34e3895fc62cde3c5c78cfc82  libstdc++-v3/src/c++98/istream-string.cc
--- 89741,89747 ----
  b5a6426cd78a248d444c396d17b39907  libstdc++-v3/src/c++98/hash-long-double-tr1-aux.cc
  27fded860f1701c802db50b66f79bba5  libstdc++-v3/src/c++98/hash_tr1.cc
  cfaa81c6f707f2c68b2d8341ec2d1a0a  libstdc++-v3/src/c++98/hashtable_tr1.cc
! a324a1ed2afdb3ff4c289f65db486e87  libstdc++-v3/src/c++98/ios_failure.cc
  bbb991efa215fe070075ec6b07b86c4b  libstdc++-v3/src/c++98/ios_init.cc
  14fcaa4cbfc3d385eb2cab6a2161bcdb  libstdc++-v3/src/c++98/ios_locale.cc
  f0c824c34e3895fc62cde3c5c78cfc82  libstdc++-v3/src/c++98/istream-string.cc
*************** b4ac6de6e467f21aa498b39eba944fe5  libstd
*** 89346,89352 ****
  ac3f3de0b3593ca5f20a5b2eb94a2ed8  libstdc++-v3/src/c++98/localename.cc
  8ed9de44a75c9f2d633936ffa1b1e5da  libstdc++-v3/src/c++98/math_stubs_float.cc
  bfc8dc3185ba0bfe20cfa75a62c7d132  libstdc++-v3/src/c++98/math_stubs_long_double.cc
! 18bb87e158951223e08deedd27f86d9a  libstdc++-v3/src/c++98/misc-inst.cc
  161aa3de88132a5e5d078a4ae6a9fa6d  libstdc++-v3/src/c++98/mt_allocator.cc
  cb589af4a59101d75ba46ceced0f5243  libstdc++-v3/src/c++98/parallel_settings.cc
  480e8f7818ed09c858e02d973f26dc62  libstdc++-v3/src/c++98/pool_allocator.cc
--- 89757,89763 ----
  ac3f3de0b3593ca5f20a5b2eb94a2ed8  libstdc++-v3/src/c++98/localename.cc
  8ed9de44a75c9f2d633936ffa1b1e5da  libstdc++-v3/src/c++98/math_stubs_float.cc
  bfc8dc3185ba0bfe20cfa75a62c7d132  libstdc++-v3/src/c++98/math_stubs_long_double.cc
! 8cfceccef010e4d75470d34c57e489fe  libstdc++-v3/src/c++98/misc-inst.cc
  161aa3de88132a5e5d078a4ae6a9fa6d  libstdc++-v3/src/c++98/mt_allocator.cc
  cb589af4a59101d75ba46ceced0f5243  libstdc++-v3/src/c++98/parallel_settings.cc
  480e8f7818ed09c858e02d973f26dc62  libstdc++-v3/src/c++98/pool_allocator.cc
*************** d386d11cd6b9682a83f687fd8cdb0c53  libstd
*** 89361,89367 ****
  a55f615eaeda6a459dd7afb072d7b189  libstdc++-v3/src/filesystem/cow-ops.cc
  69cc034ef75e4e41c856abb14ff6a9c6  libstdc++-v3/src/filesystem/cow-path.cc
  c4f45396c9d0b0a0a177464fc0c7e102  libstdc++-v3/src/filesystem/dir.cc
! c0392ec7dd5a3c02a6a412caf5802ae5  libstdc++-v3/src/filesystem/ops.cc
  565e7324068b67ac6d423123a8796c82  libstdc++-v3/src/filesystem/path.cc
  588e1f8e679966c86b3269c806c1baaa  libstdc++-v3/src/shared/hashtable-aux.cc
  fd840c906f4a0cf5df5cd7bc96c757e5  libstdc++-v3/testsuite/17_intro/freestanding.cc
--- 89772,89778 ----
  a55f615eaeda6a459dd7afb072d7b189  libstdc++-v3/src/filesystem/cow-ops.cc
  69cc034ef75e4e41c856abb14ff6a9c6  libstdc++-v3/src/filesystem/cow-path.cc
  c4f45396c9d0b0a0a177464fc0c7e102  libstdc++-v3/src/filesystem/dir.cc
! d6ceed80d18d2144ee07e650b6dd3226  libstdc++-v3/src/filesystem/ops.cc
  565e7324068b67ac6d423123a8796c82  libstdc++-v3/src/filesystem/path.cc
  588e1f8e679966c86b3269c806c1baaa  libstdc++-v3/src/shared/hashtable-aux.cc
  fd840c906f4a0cf5df5cd7bc96c757e5  libstdc++-v3/testsuite/17_intro/freestanding.cc
*************** d94df9f2a6058590ea20cace55bbda8d  libstd
*** 89394,89400 ****
  4ff5d11b8470405e4886cf3a3fa58ba2  libstdc++-v3/testsuite/17_intro/headers/c++2014/operator_names.cc
  c78c3f91f2a110ee69cf4e57c7ccd127  libstdc++-v3/testsuite/17_intro/headers/c++2014/stdc++.cc
  3c8255034e81ad41296ae7287978bd19  libstdc++-v3/testsuite/17_intro/headers/c++2014/stdc++_multiple_inclusion.cc
! e5203b13d9e40e55dfe4e0ca32686e3a  libstdc++-v3/testsuite/17_intro/names.cc
  e79c04fb064066d3427dfe0922d74f0d  libstdc++-v3/testsuite/17_intro/shared_with_static_deps.cc
  5c8746cb5f66609444c6aaeaf1cf5931  libstdc++-v3/testsuite/17_intro/static.cc
  81c3cdd8400d460b783381ce0bef986f  libstdc++-v3/testsuite/17_intro/tag_type_explicit_ctor.cc
--- 89805,89811 ----
  4ff5d11b8470405e4886cf3a3fa58ba2  libstdc++-v3/testsuite/17_intro/headers/c++2014/operator_names.cc
  c78c3f91f2a110ee69cf4e57c7ccd127  libstdc++-v3/testsuite/17_intro/headers/c++2014/stdc++.cc
  3c8255034e81ad41296ae7287978bd19  libstdc++-v3/testsuite/17_intro/headers/c++2014/stdc++_multiple_inclusion.cc
! 5d016aee9eba54a437b9f6718091ca97  libstdc++-v3/testsuite/17_intro/names.cc
  e79c04fb064066d3427dfe0922d74f0d  libstdc++-v3/testsuite/17_intro/shared_with_static_deps.cc
  5c8746cb5f66609444c6aaeaf1cf5931  libstdc++-v3/testsuite/17_intro/static.cc
  81c3cdd8400d460b783381ce0bef986f  libstdc++-v3/testsuite/17_intro/tag_type_explicit_ctor.cc
*************** ef8cd4cd2719da5561018ef3c9e01437  libstd
*** 89509,89516 ****
--- 89920,89929 ----
  134586cd0ee6c57b1a401aa9981c5f56  libstdc++-v3/testsuite/18_support/unexpected_handler.cc
  2e9665b0d31f4a71cad09252943eee06  libstdc++-v3/testsuite/19_diagnostics/error_category/cons/copy_neg.cc
  9d66907a532b131a9fc825ffa0ee500c  libstdc++-v3/testsuite/19_diagnostics/error_category/cons/default.cc
+ 287241f43ac73617879271520c2580d9  libstdc++-v3/testsuite/19_diagnostics/error_category/generic_category.cc
  b809e428283634d9675471f682865abb  libstdc++-v3/testsuite/19_diagnostics/error_category/operators/equal.cc
  dad6dd240afebb7277ecfbea48222fed  libstdc++-v3/testsuite/19_diagnostics/error_category/operators/not_equal.cc
+ 47a1d673d341a1c01b1a51db19a60679  libstdc++-v3/testsuite/19_diagnostics/error_category/system_category.cc
  184e9d8e7b4b7a059de21c05fffb1cb3  libstdc++-v3/testsuite/19_diagnostics/error_code/cons/1.cc
  8d52ee20ea655a9f86de818c1ee48855  libstdc++-v3/testsuite/19_diagnostics/error_code/cons/39882.cc
  7faf1bf26dab57c2372f098150ea3237  libstdc++-v3/testsuite/19_diagnostics/error_code/modifiers/39882.cc
*************** fbf00ea7524f5939b353c8c40db03bff  libstd
*** 89669,89679 ****
  722f6192d26cf6e915d9bd9ed8dad28d  libstdc++-v3/testsuite/20_util/duration/cons/2.cc
  562f3b9496a7a86c1e58e25bcd312ebc  libstdc++-v3/testsuite/20_util/duration/cons/54025.cc
  33498b9043f835cea8718bb3d367d246  libstdc++-v3/testsuite/20_util/duration/cons/constexpr.cc
  269334c54afc840c13b61b15056f033c  libstdc++-v3/testsuite/20_util/duration/cons/dr974_neg.cc
  8290034de2077df4442708892ee8f008  libstdc++-v3/testsuite/20_util/duration/literals/61166.cc
  24954fbcb4801d13ab63d9a4dcc42ceb  libstdc++-v3/testsuite/20_util/duration/literals/65499.cc
  a808c9968c77342c65010e2916cfcbe4  libstdc++-v3/testsuite/20_util/duration/literals/ns_detail.cc
! dce8c6b70e3d2d53411fab7823cdb017  libstdc++-v3/testsuite/20_util/duration/literals/range.cc
  6fc5f0d60e7af9a6080dc4f782e6f748  libstdc++-v3/testsuite/20_util/duration/literals/types.cc
  d2ace59790c7e0d9934b4017884f66c8  libstdc++-v3/testsuite/20_util/duration/literals/values.cc
  3041f7ec0f3fec5a77276a1568040abd  libstdc++-v3/testsuite/20_util/duration/requirements/constexpr_functions.cc
--- 90082,90095 ----
  722f6192d26cf6e915d9bd9ed8dad28d  libstdc++-v3/testsuite/20_util/duration/cons/2.cc
  562f3b9496a7a86c1e58e25bcd312ebc  libstdc++-v3/testsuite/20_util/duration/cons/54025.cc
  33498b9043f835cea8718bb3d367d246  libstdc++-v3/testsuite/20_util/duration/cons/constexpr.cc
+ fbaa937edc0105b6ee5eaf81bf887591  libstdc++-v3/testsuite/20_util/duration/cons/dr1177.cc
+ 61e43b1df702ebfb4f2a1470fa9edfe1  libstdc++-v3/testsuite/20_util/duration/cons/dr3050.cc
  269334c54afc840c13b61b15056f033c  libstdc++-v3/testsuite/20_util/duration/cons/dr974_neg.cc
  8290034de2077df4442708892ee8f008  libstdc++-v3/testsuite/20_util/duration/literals/61166.cc
  24954fbcb4801d13ab63d9a4dcc42ceb  libstdc++-v3/testsuite/20_util/duration/literals/65499.cc
+ c67d16d858b1ab66464b080d5c6d7691  libstdc++-v3/testsuite/20_util/duration/literals/84671.cc
  a808c9968c77342c65010e2916cfcbe4  libstdc++-v3/testsuite/20_util/duration/literals/ns_detail.cc
! 17bbf0bb56817999848775d93b0b7309  libstdc++-v3/testsuite/20_util/duration/literals/range_neg.cc
  6fc5f0d60e7af9a6080dc4f782e6f748  libstdc++-v3/testsuite/20_util/duration/literals/types.cc
  d2ace59790c7e0d9934b4017884f66c8  libstdc++-v3/testsuite/20_util/duration/literals/values.cc
  3041f7ec0f3fec5a77276a1568040abd  libstdc++-v3/testsuite/20_util/duration/requirements/constexpr_functions.cc
*************** b0c6d1748b9fe1a4cf4ef47036155fff  libstd
*** 89726,89732 ****
  294f36176d900e2be3b3bf42301494f7  libstdc++-v3/testsuite/20_util/function/77322.cc
  3642926c9c42573514df39345adc505f  libstdc++-v3/testsuite/20_util/function/8.cc
  c0c6d89f2c16a7a089d2277404b4e8fb  libstdc++-v3/testsuite/20_util/function/9.cc
! 231bb97f578c19e044230afe5c179bbb  libstdc++-v3/testsuite/20_util/function/assign/move.cc
  0d749f13cf64dec7c7327fd72ec9eb2d  libstdc++-v3/testsuite/20_util/function/assign/move_target.cc
  a14a74408e848e1c3eecff9162e08df5  libstdc++-v3/testsuite/20_util/function/cmp/cmp_neg.cc
  2b541f64c55dba2195962ec33828237b  libstdc++-v3/testsuite/20_util/function/cons/55320.cc
--- 90142,90148 ----
  294f36176d900e2be3b3bf42301494f7  libstdc++-v3/testsuite/20_util/function/77322.cc
  3642926c9c42573514df39345adc505f  libstdc++-v3/testsuite/20_util/function/8.cc
  c0c6d89f2c16a7a089d2277404b4e8fb  libstdc++-v3/testsuite/20_util/function/9.cc
! 511b156e453fa080b6fc7aa653431682  libstdc++-v3/testsuite/20_util/function/assign/move.cc
  0d749f13cf64dec7c7327fd72ec9eb2d  libstdc++-v3/testsuite/20_util/function/assign/move_target.cc
  a14a74408e848e1c3eecff9162e08df5  libstdc++-v3/testsuite/20_util/function/cmp/cmp_neg.cc
  2b541f64c55dba2195962ec33828237b  libstdc++-v3/testsuite/20_util/function/cons/55320.cc
*************** f405c3446afeb0b35d2c926420155ee0  libstd
*** 89734,89740 ****
  1e369dfe927c8159f68b74615fd658bd  libstdc++-v3/testsuite/20_util/function/cons/72820.cc
  37e8632f6f6a776001b4e6d0391a92f4  libstdc++-v3/testsuite/20_util/function/cons/addressof.cc
  5bdb178a9583c22b8ba79ace366e1d60  libstdc++-v3/testsuite/20_util/function/cons/callable.cc
! 8ccd0b58e346a39a30f9ab7f563fa5ac  libstdc++-v3/testsuite/20_util/function/cons/move.cc
  647a6f820772f401c3599a71bfed238d  libstdc++-v3/testsuite/20_util/function/cons/move_target.cc
  0854a43f0e035a0fd198df79037baac0  libstdc++-v3/testsuite/20_util/function/cons/refqual.cc
  111b591a8033ed1636471e3b61fc1bf7  libstdc++-v3/testsuite/20_util/function/invoke/forwarding.cc
--- 90150,90156 ----
  1e369dfe927c8159f68b74615fd658bd  libstdc++-v3/testsuite/20_util/function/cons/72820.cc
  37e8632f6f6a776001b4e6d0391a92f4  libstdc++-v3/testsuite/20_util/function/cons/addressof.cc
  5bdb178a9583c22b8ba79ace366e1d60  libstdc++-v3/testsuite/20_util/function/cons/callable.cc
! e8186e285f52097da75c36a25aedfda7  libstdc++-v3/testsuite/20_util/function/cons/move.cc
  647a6f820772f401c3599a71bfed238d  libstdc++-v3/testsuite/20_util/function/cons/move_target.cc
  0854a43f0e035a0fd198df79037baac0  libstdc++-v3/testsuite/20_util/function/cons/refqual.cc
  111b591a8033ed1636471e3b61fc1bf7  libstdc++-v3/testsuite/20_util/function/invoke/forwarding.cc
*************** ff0b0808aa983cb9126b7a2db5e910f9  libstd
*** 90024,90029 ****
--- 90440,90446 ----
  969807c9e0fe26eec57b66d5b775fccd  libstdc++-v3/testsuite/20_util/move_if_noexcept/constexpr.cc
  23a4c7e0281947404db552d4e3b807bb  libstdc++-v3/testsuite/20_util/move_if_noexcept/requirements/explicit_instantiation.cc
  fc560b3d2527351bdb40a5abbd47f6f6  libstdc++-v3/testsuite/20_util/owner_less/cmp.cc
+ 2d8b88b0d227bfb284ab4261f1d0f16d  libstdc++-v3/testsuite/20_util/owner_less/noexcept.cc
  bd78e654ed32c6589875a17661baddf6  libstdc++-v3/testsuite/20_util/pair/1.cc
  8bc2441a1e18adf7be0f7a4b3ba4714c  libstdc++-v3/testsuite/20_util/pair/2.cc
  d89f6fb07684572a501cfdb2c4d55c37  libstdc++-v3/testsuite/20_util/pair/3.cc
*************** a4a288b2d2a70de0346bd190c163013d  libstd
*** 90032,90037 ****
--- 90449,90455 ----
  99a525748fc512545b0334ba2ceb5ce6  libstdc++-v3/testsuite/20_util/pair/44487.cc
  8f02878973f833be005189171b4cd263  libstdc++-v3/testsuite/20_util/pair/70437.cc
  2d4c79c749099bb0f784eb806c4db85d  libstdc++-v3/testsuite/20_util/pair/79141.cc
+ 2afac7486d8cd971ddfb494ffff9ebd4  libstdc++-v3/testsuite/20_util/pair/86751.cc
  0a002d2309ee2dc915820989441f7eed  libstdc++-v3/testsuite/20_util/pair/astuple/astuple.cc
  0ab0c4f421a0d607d5f9ced3a8523fa3  libstdc++-v3/testsuite/20_util/pair/astuple/astuple_cpp14.cc
  f35631c8e1a0a50df8a35abd89d7b05e  libstdc++-v3/testsuite/20_util/pair/astuple/constexpr_get.cc
*************** a4b5c146db4ad17613dc2b113d15a741  libstd
*** 90052,90057 ****
--- 90470,90476 ----
  686d5e961e39be9b885e7b149cfab34a  libstdc++-v3/testsuite/20_util/pair/noncopyable.cc
  55df99bdbe01202499e9efc61ba8539a  libstdc++-v3/testsuite/20_util/pair/piecewise.cc
  eca3a75f387b553ecc83af1e1e263b75  libstdc++-v3/testsuite/20_util/pair/piecewise2.cc
+ 01067985a76b33ca2500440d169dd32b  libstdc++-v3/testsuite/20_util/pair/ref_assign.cc
  e4d6bf53af532c072c083d275fc2322d  libstdc++-v3/testsuite/20_util/pair/requirements/dr2367.cc
  a995af71aacb76eea9fa0a21d14c3734  libstdc++-v3/testsuite/20_util/pair/requirements/dr801.cc
  c1f175dcc9e14d76e26cd101566ad7e4  libstdc++-v3/testsuite/20_util/pair/requirements/explicit_instantiation/1.cc
*************** bd71e524426fae68af4b5da26534626f  libstd
*** 90204,90210 ****
  41c7ccaff9417ba890fbfa04aed31027  libstdc++-v3/testsuite/20_util/shared_ptr/modifiers/swap_neg.cc
  d4b1a790f3b284cd92733143625eaeff  libstdc++-v3/testsuite/20_util/shared_ptr/observers/bool_conv.cc
  c8b137297593a7d293e72f004e396a64  libstdc++-v3/testsuite/20_util/shared_ptr/observers/get.cc
! 0af16a27298a91ef4c2308513068dc45  libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc
  57ae74639669be52b3bbb5a195d93961  libstdc++-v3/testsuite/20_util/shared_ptr/observers/unique.cc
  1eca21aa2fe0c9f32b980d97f0cbe663  libstdc++-v3/testsuite/20_util/shared_ptr/observers/use_count.cc
  fc67939789d7b1be799f51e83ab20933  libstdc++-v3/testsuite/20_util/shared_ptr/requirements/explicit_instantiation/1.cc
--- 90623,90629 ----
  41c7ccaff9417ba890fbfa04aed31027  libstdc++-v3/testsuite/20_util/shared_ptr/modifiers/swap_neg.cc
  d4b1a790f3b284cd92733143625eaeff  libstdc++-v3/testsuite/20_util/shared_ptr/observers/bool_conv.cc
  c8b137297593a7d293e72f004e396a64  libstdc++-v3/testsuite/20_util/shared_ptr/observers/get.cc
! 83e59c1e0857c8e72e1b54924818638b  libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc
  57ae74639669be52b3bbb5a195d93961  libstdc++-v3/testsuite/20_util/shared_ptr/observers/unique.cc
  1eca21aa2fe0c9f32b980d97f0cbe663  libstdc++-v3/testsuite/20_util/shared_ptr/observers/use_count.cc
  fc67939789d7b1be799f51e83ab20933  libstdc++-v3/testsuite/20_util/shared_ptr/requirements/explicit_instantiation/1.cc
*************** b09ddd8fe0aabe0ab76f7eb25c5cd6c5  libstd
*** 90231,90236 ****
--- 90650,90656 ----
  e7992bf5fd8771d6827cb32f0c0a8550  libstdc++-v3/testsuite/20_util/time_point/2.cc
  7060fd25b71dfe6f5ff1441607e3cfa4  libstdc++-v3/testsuite/20_util/time_point/3.cc
  0280154a591d18f9fe4a19876a783b74  libstdc++-v3/testsuite/20_util/time_point/comparison_operators/constexpr.cc
+ 6a717e0cd922e4615aac13bc2eb0cf19  libstdc++-v3/testsuite/20_util/time_point/cons/81468.cc
  c0cb44dfdc29cbc80b4c6ab8568aee59  libstdc++-v3/testsuite/20_util/time_point/cons/constexpr.cc
  9c7cea51c7ecd134e47a63e1cda0f40d  libstdc++-v3/testsuite/20_util/time_point/nonmember/constexpr.cc
  bd773d994415edd42487b3d0dc760b5d  libstdc++-v3/testsuite/20_util/time_point/requirements/constexpr_functions.cc
*************** a13baf1c8adae6d7dd265f21debe77a2  libstd
*** 90301,90307 ****
  958fd70445124528392c1589aebdc189  libstdc++-v3/testsuite/20_util/underlying_type/requirements/typedefs-2.cc
  997ff36f5458a3891748267a853e1f8b  libstdc++-v3/testsuite/20_util/unique_ptr/54351.cc
  e081ff4616af94ce4fbccdc1d49dcca5  libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635.cc
! 98bdbfa4ebec0bd7219f9b6f8a1e6d30  libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc
  c2983d2be83c7ea18c7da4a10451d779  libstdc++-v3/testsuite/20_util/unique_ptr/assign/assign_neg.cc
  ccdf8e7cb42e1137c49d24f9660b0607  libstdc++-v3/testsuite/20_util/unique_ptr/assign/cv_qual.cc
  4967ea3c597fbf4ba385486ac18510fa  libstdc++-v3/testsuite/20_util/unique_ptr/assign/move.cc
--- 90721,90727 ----
  958fd70445124528392c1589aebdc189  libstdc++-v3/testsuite/20_util/underlying_type/requirements/typedefs-2.cc
  997ff36f5458a3891748267a853e1f8b  libstdc++-v3/testsuite/20_util/unique_ptr/54351.cc
  e081ff4616af94ce4fbccdc1d49dcca5  libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635.cc
! ac6e695e60af48b9ff25a9d26b534ed1  libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc
  c2983d2be83c7ea18c7da4a10451d779  libstdc++-v3/testsuite/20_util/unique_ptr/assign/assign_neg.cc
  ccdf8e7cb42e1137c49d24f9660b0607  libstdc++-v3/testsuite/20_util/unique_ptr/assign/cv_qual.cc
  4967ea3c597fbf4ba385486ac18510fa  libstdc++-v3/testsuite/20_util/unique_ptr/assign/move.cc
*************** ae2674dee42d71a89b71ec1b8e0ffc98  libstd
*** 90316,90322 ****
  fa74f081cd84113091311015e5d7a551  libstdc++-v3/testsuite/20_util/unique_ptr/cons/constexpr.cc
  3d77275251736a1634fa2fdd8cfcdd6e  libstdc++-v3/testsuite/20_util/unique_ptr/cons/convertible_neg.cc
  295664fea0a8d42677b3588148871f4a  libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual.cc
! 78fe2347ee4f07b011ff8f488a2043f2  libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc
  d17f80255f892ee5d47ab9236e077d72  libstdc++-v3/testsuite/20_util/unique_ptr/cons/noexcept_move_construct.cc
  3c64a7d2373203d3e9a730149db22b16  libstdc++-v3/testsuite/20_util/unique_ptr/cons/nullptr.cc
  73ffaeb8d24ce2318ce6f05aefc0fae8  libstdc++-v3/testsuite/20_util/unique_ptr/cons/pointer.cc
--- 90736,90743 ----
  fa74f081cd84113091311015e5d7a551  libstdc++-v3/testsuite/20_util/unique_ptr/cons/constexpr.cc
  3d77275251736a1634fa2fdd8cfcdd6e  libstdc++-v3/testsuite/20_util/unique_ptr/cons/convertible_neg.cc
  295664fea0a8d42677b3588148871f4a  libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual.cc
! 4d475ab3fdbd1efe27a4be01f45a13cd  libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc
! bee7be33cdf693573fffc08c157838b9  libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc
  d17f80255f892ee5d47ab9236e077d72  libstdc++-v3/testsuite/20_util/unique_ptr/cons/noexcept_move_construct.cc
  3c64a7d2373203d3e9a730149db22b16  libstdc++-v3/testsuite/20_util/unique_ptr/cons/nullptr.cc
  73ffaeb8d24ce2318ce6f05aefc0fae8  libstdc++-v3/testsuite/20_util/unique_ptr/cons/pointer.cc
*************** ddca69c8a636f0d74dd18fdb9a59cdaf  libstd
*** 90351,90357 ****
  6bd06e35880b60b440c1863f83895700  libstdc++-v3/testsuite/20_util/weak_ptr/cons/constexpr.cc
  34f7e4f5b3069e954253608fd4186c67  libstdc++-v3/testsuite/20_util/weak_ptr/cons/noexcept_move_construct.cc
  3f66c21845d7d754565cbcb4a57c0dbe  libstdc++-v3/testsuite/20_util/weak_ptr/lock/1.cc
! 7fe74a722684000e1d35caf20eda2107  libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc
  7c7fef1183a9b344b6674da9f31f576b  libstdc++-v3/testsuite/20_util/weak_ptr/requirements/explicit_instantiation/1.cc
  6759230139352cf7e4cbd1160c4f3d00  libstdc++-v3/testsuite/20_util/weak_ptr/requirements/explicit_instantiation/2.cc
  f0a4325fad100579e7be08ef2827932c  libstdc++-v3/testsuite/21_strings/basic_string/40160.cc
--- 90772,90778 ----
  6bd06e35880b60b440c1863f83895700  libstdc++-v3/testsuite/20_util/weak_ptr/cons/constexpr.cc
  34f7e4f5b3069e954253608fd4186c67  libstdc++-v3/testsuite/20_util/weak_ptr/cons/noexcept_move_construct.cc
  3f66c21845d7d754565cbcb4a57c0dbe  libstdc++-v3/testsuite/20_util/weak_ptr/lock/1.cc
! eca91a419577f107865b43eddb1d6654  libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc
  7c7fef1183a9b344b6674da9f31f576b  libstdc++-v3/testsuite/20_util/weak_ptr/requirements/explicit_instantiation/1.cc
  6759230139352cf7e4cbd1160c4f3d00  libstdc++-v3/testsuite/20_util/weak_ptr/requirements/explicit_instantiation/2.cc
  f0a4325fad100579e7be08ef2827932c  libstdc++-v3/testsuite/21_strings/basic_string/40160.cc
*************** eeb4444a875fc1ed3484f1c9859f4d47  libstd
*** 90455,90465 ****
--- 90876,90890 ----
  d499d9b92b8cd5ada24bf2ef21d757bb  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/2.cc
  d624c84f9f396a29d2078dae39728ea6  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/3.cc
  860278da243ff9ed938341912908d05e  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/64657.cc
+ e2b9e5e53ba989281c8cd000699a1e99  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc
  2dcfbe7ca155d03955daebb244a4934e  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign.cc
+ dc19f01cfa471597e2bb1669333d57e0  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc
  7603ae8e18f438836fb833da1ee877fe  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/1.cc
  a62766c8fc0bf8b266c90d5862b1b7df  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/2.cc
  dd311998d1fc5d80d983f76a8d5cb00f  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/3.cc
+ bb668611b5d884bbce2f1c64592d2852  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc
  075a8b255108080cc827e8f70e83b2ea  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign.cc
+ b81360767448c4aa6140f19bdd3b0a31  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc
  8ced8c86cff9e569d931e4f71a4c9e03  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/insert/char/1.cc
  ad9b337ee114087e99d05ad622016b5d  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/insert/char/2.cc
  1d058e160a50a36987dff00d9d1b6673  libstdc++-v3/testsuite/21_strings/basic_string/modifiers/insert/wchar_t/1.cc
*************** b59930931ab0756e3a99b900cbadf303  libstd
*** 90612,90621 ****
  b401b5f49d27dcc14cb2f8fc5518ad0a  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/members.cc
  0232727b4ef5f9d7a55164d70075af2c  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc
  a9d0a70ac98a0b17d2d1cc8c848a8efc  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc
! d1ed67ee033e3f14a4e84f4874b7f324  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/69703.cc
  6d036cd16e2b152bc495f87d19ba75b6  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/79980.cc
  48a19c06bd558fc0cc79f04b6eba976d  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/members.cc
  ff59d91f6f27e3904a6f0c4e0fc63592  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc
  a6f9396f0c42a4c6d1d6de7ae30882e3  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/66855.cc
  bc8366ae0b770af4ad2295e1b00ae27b  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/79511.cc
  9fa291011214705ff29b9c858d91395f  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/members.cc
--- 91037,91047 ----
  b401b5f49d27dcc14cb2f8fc5518ad0a  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/members.cc
  0232727b4ef5f9d7a55164d70075af2c  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc
  a9d0a70ac98a0b17d2d1cc8c848a8efc  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc
! cd703dffe1e17f0c5845280cdd5df7ae  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/69703.cc
  6d036cd16e2b152bc495f87d19ba75b6  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/79980.cc
  48a19c06bd558fc0cc79f04b6eba976d  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/members.cc
  ff59d91f6f27e3904a6f0c4e0fc63592  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc
+ 5a0ffd51408333daf5df0ac984db795d  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc
  a6f9396f0c42a4c6d1d6de7ae30882e3  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/66855.cc
  bc8366ae0b770af4ad2295e1b00ae27b  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/79511.cc
  9fa291011214705ff29b9c858d91395f  libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8_utf16/members.cc
*************** b1ce9969455e540de745e2d87c8b887c  libstd
*** 90733,90738 ****
--- 91159,91165 ----
  d8b7a2f14b32d3008122db738b02f581  libstdc++-v3/testsuite/22_locale/collate_byname/requirements/typedefs.cc
  09a60faff43ef20f524afd2c618a80d8  libstdc++-v3/testsuite/22_locale/conversions/buffer/1.cc
  3fbaa9f6bcbaf536b0e6d981761efdbd  libstdc++-v3/testsuite/22_locale/conversions/buffer/2.cc
+ 4fd95587f2f6f96070aa8369f605054d  libstdc++-v3/testsuite/22_locale/conversions/buffer/3.cc
  4d18b9103ca960e892c39cbaedb03ab2  libstdc++-v3/testsuite/22_locale/conversions/buffer/requirements/typedefs.cc
  212ac47998d5e5f83ad70307a2f9f5da  libstdc++-v3/testsuite/22_locale/conversions/string/1.cc
  1331a4635468632b7184619726887d3f  libstdc++-v3/testsuite/22_locale/conversions/string/2.cc
*************** c0b53bf5be515865cab70169d91ab4d6  libstd
*** 91045,91051 ****
  b3cb68aab2b7eb85095fe47a431114cf  libstdc++-v3/testsuite/22_locale/num_put/requirements/typedefs.cc
  4e0749b0d63529a2c932a8f20b02a171  libstdc++-v3/testsuite/22_locale/numpunct/members/char/1.cc
  882bd7ce881d98cccf510ea35853def3  libstdc++-v3/testsuite/22_locale/numpunct/members/char/2.cc
! 5a119e9eff229ffc7337a0f4a386deec  libstdc++-v3/testsuite/22_locale/numpunct/members/char/3.cc
  f60c979ea08502dd0abc46c951ac48d2  libstdc++-v3/testsuite/22_locale/numpunct/members/char/cache_1.cc
  9adef4436b6a5ea3d5a63e74d6d88ab1  libstdc++-v3/testsuite/22_locale/numpunct/members/char/cache_2.cc
  8f2705168770a4da06c23769487c14c5  libstdc++-v3/testsuite/22_locale/numpunct/members/char/wrapped_env.cc
--- 91472,91478 ----
  b3cb68aab2b7eb85095fe47a431114cf  libstdc++-v3/testsuite/22_locale/num_put/requirements/typedefs.cc
  4e0749b0d63529a2c932a8f20b02a171  libstdc++-v3/testsuite/22_locale/numpunct/members/char/1.cc
  882bd7ce881d98cccf510ea35853def3  libstdc++-v3/testsuite/22_locale/numpunct/members/char/2.cc
! aa2048620f1a98f1622c1503763a339c  libstdc++-v3/testsuite/22_locale/numpunct/members/char/3.cc
  f60c979ea08502dd0abc46c951ac48d2  libstdc++-v3/testsuite/22_locale/numpunct/members/char/cache_1.cc
  9adef4436b6a5ea3d5a63e74d6d88ab1  libstdc++-v3/testsuite/22_locale/numpunct/members/char/cache_2.cc
  8f2705168770a4da06c23769487c14c5  libstdc++-v3/testsuite/22_locale/numpunct/members/char/wrapped_env.cc
*************** ab9f62e65d628da06d3d7c2e38d47c25  libstd
*** 91882,91887 ****
--- 92309,92315 ----
  a2fb8647025985ce5c1c6c5bb8210cd9  libstdc++-v3/testsuite/23_containers/unordered_map/allocator/swap.cc
  1b4d604e7239d479c5e2e3d981b906c7  libstdc++-v3/testsuite/23_containers/unordered_map/cons/56112.cc
  7e837fb47c161e9d478ac83a94411e37  libstdc++-v3/testsuite/23_containers/unordered_map/cons/66055.cc
+ 1d872b0e1c61446b8ad22903c0cd61bc  libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc
  6d1f6b15576c39fef2501186dbb42e6a  libstdc++-v3/testsuite/23_containers/unordered_map/cons/moveable.cc
  14260f2795d91f84947ee374719fe212  libstdc++-v3/testsuite/23_containers/unordered_map/debug/60499.cc
  f091ef7137a54528a32fcbb74c12d18a  libstdc++-v3/testsuite/23_containers/unordered_map/debug/begin1_neg.cc
*************** e081eb9f1d4a4448f831d8cb78fe3581  libstd
*** 92209,92214 ****
--- 92637,92643 ----
  bdb5ff884dbdddc9d0a3924bfd23d7b2  libstdc++-v3/testsuite/23_containers/vector/bool/21244.cc
  8aaf99a1ca856b2975be5cfb517448b2  libstdc++-v3/testsuite/23_containers/vector/bool/23632.cc
  2064bcb64842766e12cbd050a0ddb6ec  libstdc++-v3/testsuite/23_containers/vector/bool/6886.cc
+ a1adbcfdf97c4f0e12db71ea6e4edd82  libstdc++-v3/testsuite/23_containers/vector/bool/80893.cc
  abbe033cae6890eda34053a8530e9b2a  libstdc++-v3/testsuite/23_containers/vector/bool/allocator/copy.cc
  0143591a8c2ada3793b06fe4e7713359  libstdc++-v3/testsuite/23_containers/vector/bool/allocator/copy_assign.cc
  c4d172d4d0c74b901c837c617fe357ac  libstdc++-v3/testsuite/23_containers/vector/bool/allocator/ext_ptr.cc
*************** b6b1f7ec1bd1c821e91e1d1884d29fe7  libstd
*** 92248,92253 ****
--- 92677,92683 ----
  8f2c8d37d5150fd6c5a61ef924514935  libstdc++-v3/testsuite/23_containers/vector/capacity/resize/moveable.cc
  f102e5f9f7d01521fee9fd80c374ea29  libstdc++-v3/testsuite/23_containers/vector/capacity/resize/moveable2.cc
  61e6da560d5729b3c88a2f8425d08072  libstdc++-v3/testsuite/23_containers/vector/capacity/resize/resize_size.cc
+ ee403fdcb93ecb4b122c34a4726c9eec  libstdc++-v3/testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc
  0e70d2551bb834e7983c65dc5e5450be  libstdc++-v3/testsuite/23_containers/vector/capacity/shrink_to_fit.cc
  6adefc294f1a73806ff8ae60b6c371ea  libstdc++-v3/testsuite/23_containers/vector/capacity/shrink_to_fit2.cc
  3baf01eee18c11b2710a6bd32bc3584b  libstdc++-v3/testsuite/23_containers/vector/check_construct_destroy.cc
*************** e01120b64bc89127804fd78570870a88  libstd
*** 92257,92262 ****
--- 92687,92693 ----
  d6b81c4438e383c1dc25b4d18901ea2e  libstdc++-v3/testsuite/23_containers/vector/cons/4.cc
  9f33dd49cf4a7941e75f558b23fa2f4d  libstdc++-v3/testsuite/23_containers/vector/cons/55977.cc
  19ffa88399d38350a04444c30df9f0a8  libstdc++-v3/testsuite/23_containers/vector/cons/6513.cc
+ 14d00e2a078c432ad11f61c1428c7694  libstdc++-v3/testsuite/23_containers/vector/cons/86292.cc
  e2158039e1b3f4c8952a254543328085  libstdc++-v3/testsuite/23_containers/vector/cons/clear_allocator.cc
  4bb5e76515b273d559d61194ba943727  libstdc++-v3/testsuite/23_containers/vector/cons/cons_size.cc
  c3ec174e227a79a4f8ecfb44ffd83960  libstdc++-v3/testsuite/23_containers/vector/cons/moveable.cc
*************** f9b80028fabebd93a5252a4e1c139252  libstd
*** 92407,92412 ****
--- 92838,92844 ----
  901ed87038d8b4eb7e06b753b26dddf3  libstdc++-v3/testsuite/24_iterators/reverse_iterator/2.cc
  e47b14d95dbc16c21919cfa5254a21a4  libstdc++-v3/testsuite/24_iterators/reverse_iterator/3.cc
  b4af7016995bc8d57ab1616b0ef3f863  libstdc++-v3/testsuite/24_iterators/reverse_iterator/71771.cc
+ 99c0d1364fa0dbea99e7ce16b4b3ed8b  libstdc++-v3/testsuite/24_iterators/reverse_iterator/dr2188.cc
  647950833ebcf92ad6f7f60f3b6d6780  libstdc++-v3/testsuite/24_iterators/reverse_iterator/greedy_ops.cc
  b7ac6bf53243b1cf586dfa3b2b17be46  libstdc++-v3/testsuite/24_iterators/reverse_iterator/make.cc
  0d682e939ac836d09e6e509f50ed8327  libstdc++-v3/testsuite/24_iterators/reverse_iterator/requirements/base_classes.cc
*************** fd319a4cbc6781b67e27e8e24d84e2c0  libstd
*** 92898,92903 ****
--- 93330,93336 ----
  2329548a56ff5275ee0e3e89cbdfb519  libstdc++-v3/testsuite/26_numerics/complex/dr781_dr1137.cc
  22ca8b13e51b536ab97e99dd2bd79684  libstdc++-v3/testsuite/26_numerics/complex/dr844.cc
  5ab7c1675eb76f071e56d393e7ef955b  libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/char/1.cc
+ c245f0f3826eef03e178bb67d2d4888d  libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/char/59568.cc
  9273de3fd0f20bf55f503a6c3bb97585  libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/wchar_t/1.cc
  486e8e680d3d8e63f8c1cd96cf3d0d18  libstdc++-v3/testsuite/26_numerics/complex/literals/types.cc
  5fc49c57309d3911f5454a61fc2d439b  libstdc++-v3/testsuite/26_numerics/complex/literals/values.cc
*************** c8398deffb585eb3e98d6f103766db03  libstd
*** 92988,92993 ****
--- 93421,93427 ----
  d2a57e52552664a5c46d1a76f8ffd2d9  libstdc++-v3/testsuite/26_numerics/random/cauchy_distribution/operators/serialize.cc
  4239ab355f3ad0aeff7a69a74774f25e  libstdc++-v3/testsuite/26_numerics/random/cauchy_distribution/requirements/explicit_instantiation/1.cc
  98773a132d1fa7fac91f6767a894c32b  libstdc++-v3/testsuite/26_numerics/random/cauchy_distribution/requirements/typedefs.cc
+ 51401a37b01f5786eebfdeac5c29bde7  libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/83833.cc
  99556bf1a2b539a1b34718446d50a7ef  libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc
  8020876e3083eb8cad378adfc4b5c0c9  libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/cons/parms.cc
  b3ee803d092b62391efd7ea20adc0af3  libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/operators/equal.cc
*************** ec9f25271c7ccdf8054e2bea963a1d8a  libstd
*** 93235,93240 ****
--- 93669,93675 ----
  cda1c27b06fc0189eab8e934306bb984  libstdc++-v3/testsuite/26_numerics/valarray/33084.cc
  7310886e80c5f459ea7168384dd72ca1  libstdc++-v3/testsuite/26_numerics/valarray/40691.cc
  826c510e66bba5918e9e652f75565d3d  libstdc++-v3/testsuite/26_numerics/valarray/69116.cc
+ 76bc077d2525a3a48afe28e977dccdf2  libstdc++-v3/testsuite/26_numerics/valarray/87641.cc
  d133be2431af50e98645cff2a4eeb1d3  libstdc++-v3/testsuite/26_numerics/valarray/algo.cc
  3e191d68e11822f58de5e4bd15365ca5  libstdc++-v3/testsuite/26_numerics/valarray/binary_closure.cc
  beedcdb4f15eb0e3431d302c75beff34  libstdc++-v3/testsuite/26_numerics/valarray/const_bracket.cc
*************** e99ad4c6670fa226c5ada5db1f35e44c  libstd
*** 93405,93410 ****
--- 93840,93846 ----
  1d598222a373a4ee4f2329cbc3ecef8d  libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/2-io.cc
  7b76c46a2c703d7b7dd91a1e230e1876  libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/2-out.cc
  d02d153a17b250e34e4829b01a9b0f74  libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/3.cc
+ de8671c3b5e1af4fcb70e531e2722720  libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/81395.cc
  e929e6aecb5def3e9a6545dd46d0d6e0  libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-1.cc
  6b4641e1dd8382d141022ddf4042aec2  libstdc++-v3/testsuite/27_io/basic_filebuf/showmanyc/char/9533-2.cc
  b65bc94bc3e053844cd4ff948b9e5df6  libstdc++-v3/testsuite/27_io/basic_filebuf/snextc/char/1-in.cc
*************** efc6f464fbaa892093c1065b8ad51cf3  libstd
*** 93469,93474 ****
--- 93905,93911 ----
  68f8781a0d26f9483cd498eb48f1077b  libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/5.cc
  aa8f065a8236a0959c708cdf6c4e233c  libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/9178.cc
  92de67c590b53caf435885059820225a  libstdc++-v3/testsuite/27_io/basic_filebuf/underflow/wchar_t/9520.cc
+ 9e38cd88be90e8ec763de87e3b49dd0c  libstdc++-v3/testsuite/27_io/basic_fstream/53984.cc
  10ee68603232d90ae5499621abba70e9  libstdc++-v3/testsuite/27_io/basic_fstream/assign/1.cc
  1f4438e15e366b4e5630e0abee7575ae  libstdc++-v3/testsuite/27_io/basic_fstream/cons/1.cc
  c43574ff5f8e43599d366a9c0db8cece  libstdc++-v3/testsuite/27_io/basic_fstream/cons/base.cc
*************** f16c206090b7cecdb25c1eacdab7ab82  libstd
*** 93498,93506 ****
  d75d14777e6c53f5d5ce9035f99e9d35  libstdc++-v3/testsuite/27_io/basic_ios/conv/bool.cc
  7bbd86348644daa1c6fd658176d258e1  libstdc++-v3/testsuite/27_io/basic_ios/conv/bool_neg.cc
  d94cd1e6f5b8b3542dab42554a880997  libstdc++-v3/testsuite/27_io/basic_ios/conv/voidptr.cc
! 5192de38d482ae62a2ae85a9a442c079  libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/1.cc
  530d77c79436029942597c9dbe351844  libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/2.cc
! e3e9a9f518f4e5dd7c1c78f90aae77f1  libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/1.cc
  e29bc61733b627877685e57b627044ea  libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/2.cc
  a41a00c6a4370f45c819eba06b197688  libstdc++-v3/testsuite/27_io/basic_ios/imbue/14072.cc
  7c0133c151f9fc7cb560840b5df7526c  libstdc++-v3/testsuite/27_io/basic_ios/locales/char/1.cc
--- 93935,93943 ----
  d75d14777e6c53f5d5ce9035f99e9d35  libstdc++-v3/testsuite/27_io/basic_ios/conv/bool.cc
  7bbd86348644daa1c6fd658176d258e1  libstdc++-v3/testsuite/27_io/basic_ios/conv/bool_neg.cc
  d94cd1e6f5b8b3542dab42554a880997  libstdc++-v3/testsuite/27_io/basic_ios/conv/voidptr.cc
! d63004b496ae2c82904a22bf0bab7c1d  libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/1.cc
  530d77c79436029942597c9dbe351844  libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/2.cc
! c2ba440bc16c2c8b3fab532284cd5c66  libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/1.cc
  e29bc61733b627877685e57b627044ea  libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/2.cc
  a41a00c6a4370f45c819eba06b197688  libstdc++-v3/testsuite/27_io/basic_ios/imbue/14072.cc
  7c0133c151f9fc7cb560840b5df7526c  libstdc++-v3/testsuite/27_io/basic_ios/locales/char/1.cc
*************** e182df85c4028af52f1bc2a29eaa4667  libstd
*** 93529,93535 ****
  35f81d3685c2eb25e43a069e3870245e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/9555-ia.cc
  f49ec1d3da3094ac5826162d60d8c381  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/dr696.cc
  ae2d3227c26c1af8ff3d7ff2105cb2d4  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_badbit_throw.cc
! 4f1560ce714190bb59426a83b721d34b  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit.cc
  bbeaa1a5431305d72495045e88e87b85  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit_throw.cc
  1e8c65040396758d555f149300383ab0  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/pod/3983-1.cc
  2db70b1c6ad70dca936090403ddc3747  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc
--- 93966,93972 ----
  35f81d3685c2eb25e43a069e3870245e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/9555-ia.cc
  f49ec1d3da3094ac5826162d60d8c381  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/dr696.cc
  ae2d3227c26c1af8ff3d7ff2105cb2d4  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_badbit_throw.cc
! b46b567e56503c14011077c17e97239d  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit.cc
  bbeaa1a5431305d72495045e88e87b85  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit_throw.cc
  1e8c65040396758d555f149300383ab0  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/pod/3983-1.cc
  2db70b1c6ad70dca936090403ddc3747  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc
*************** f5a98dde66e8d493c9d46c30d8b11c22  libstd
*** 93546,93552 ****
  07a32724be1946f841bdb356a9e33ab6  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/9555-ia.cc
  3e64d8dd938ce21b7f66193a1815c858  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/dr696.cc
  53ea4deef688c2af407a71c47d20ff30  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_badbit_throw.cc
! b0f8df3ebe1ea414c919340e2eca56db  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit.cc
  b8715c29315ed8ea6a966f8f10a9ad4e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit_throw.cc
  96eb15f1c0d03e266860b2e8314e0576  libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/1.cc
  16202483644996b9a41ffec649006b0f  libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/11095-i.cc
--- 93983,93989 ----
  07a32724be1946f841bdb356a9e33ab6  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/9555-ia.cc
  3e64d8dd938ce21b7f66193a1815c858  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/dr696.cc
  53ea4deef688c2af407a71c47d20ff30  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_badbit_throw.cc
! 773dbf9757e560f780162346a0f58aca  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit.cc
  b8715c29315ed8ea6a966f8f10a9ad4e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit_throw.cc
  96eb15f1c0d03e266860b2e8314e0576  libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/1.cc
  16202483644996b9a41ffec649006b0f  libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/char/11095-i.cc
*************** fb03b86e022fbe14ba65b557e8bde161  libstd
*** 93572,93578 ****
  212b335e93a0ac534ff7b3f79b5b169c  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/error_failbit.cc
  ad4158863476313324bcea27cbd5e709  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_badbit_throw.cc
  bab999e3c9adf8ad433de7252c8a7fe5  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_failbit_throw.cc
! dd367a83d1b124edeca2359c8e2c497d  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_null.cc
  17403d379380cb09d44595eac57ec370  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/pod/3983-3.cc
  465cc6f865f0c1b8eb072efacb269f74  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/1.cc
  96a043b7e68e946b84f582df1dff433c  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc
--- 94009,94015 ----
  212b335e93a0ac534ff7b3f79b5b169c  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/error_failbit.cc
  ad4158863476313324bcea27cbd5e709  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_badbit_throw.cc
  bab999e3c9adf8ad433de7252c8a7fe5  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_failbit_throw.cc
! a6ac983a8ddb59a1e2a2eb51829ce52e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_null.cc
  17403d379380cb09d44595eac57ec370  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/pod/3983-3.cc
  465cc6f865f0c1b8eb072efacb269f74  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/1.cc
  96a043b7e68e946b84f582df1dff433c  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc
*************** f9ee2d9a5f6f0ba5f8ed8c03617852e5  libstd
*** 93584,93590 ****
  eaa0a6426ba4254b93c428291bf5677d  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/error_failbit.cc
  73bc5a4083eff78937d824ac8a8572f6  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_badbit_throw.cc
  d9f42a6df3243f83ea9086d1dd56b10e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_failbit_throw.cc
! 82ce70202dfd4bfe1e7798f25e5917e8  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_null.cc
  5f65be5824e0704e547a429a44722b1e  libstdc++-v3/testsuite/27_io/basic_istream/get/char/1.cc
  c56f2146d980859b7f786740404b8a28  libstdc++-v3/testsuite/27_io/basic_istream/get/char/2.cc
  3df49572dcf01bbaca75d2ad8a337927  libstdc++-v3/testsuite/27_io/basic_istream/get/char/3.cc
--- 94021,94027 ----
  eaa0a6426ba4254b93c428291bf5677d  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/error_failbit.cc
  73bc5a4083eff78937d824ac8a8572f6  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_badbit_throw.cc
  d9f42a6df3243f83ea9086d1dd56b10e  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_failbit_throw.cc
! 846e64a6e53bd29785cff743f70eda4a  libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_null.cc
  5f65be5824e0704e547a429a44722b1e  libstdc++-v3/testsuite/27_io/basic_istream/get/char/1.cc
  c56f2146d980859b7f786740404b8a28  libstdc++-v3/testsuite/27_io/basic_istream/get/char/2.cc
  3df49572dcf01bbaca75d2ad8a337927  libstdc++-v3/testsuite/27_io/basic_istream/get/char/3.cc
*************** ed6684118dfbb4fef2136ab1300f8e15  libstd
*** 93651,93662 ****
  8f6afd31920509d5c48550cd3f8985c6  libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/fstream.cc
  d6632435f4bd155fd066bca63fb6e4f8  libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc
  420ecdca4c0625ce7337f77624d8281b  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/1.cc
! e67a358aa26edf4e6b5509ac44f00994  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc
  368f18e6e78ef4d5297e6eeff3e83180  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/2.cc
  357952aa924ba184c619a9863cab23cb  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/3.cc
  23f35ad012333a23898d4fb714832dd5  libstdc++-v3/testsuite/27_io/basic_istream/sentry/pod/1.cc
  d1e43b09d74b11baa1a872945407b611  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/1.cc
! bd10ac4a990de2127d3d01e2b4da7cef  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc
  f24ba278a30e64de701bce3a319e27ec  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/2.cc
  23d3fbe4f95252ddc6c87652f3f17301  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/3.cc
  851ef525b608229ae38c93aa932c06f2  libstdc++-v3/testsuite/27_io/basic_istream/tellg/char/1.cc
--- 94088,94100 ----
  8f6afd31920509d5c48550cd3f8985c6  libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/fstream.cc
  d6632435f4bd155fd066bca63fb6e4f8  libstdc++-v3/testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc
  420ecdca4c0625ce7337f77624d8281b  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/1.cc
! f1e21301975c3b266f7adaedff4614d5  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc
  368f18e6e78ef4d5297e6eeff3e83180  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/2.cc
  357952aa924ba184c619a9863cab23cb  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/3.cc
+ f2fcdbb63f9588d1f62cd3c82414f648  libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/53984.cc
  23f35ad012333a23898d4fb714832dd5  libstdc++-v3/testsuite/27_io/basic_istream/sentry/pod/1.cc
  d1e43b09d74b11baa1a872945407b611  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/1.cc
! 362ce520e9d4717ec71beed0bed06e12  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc
  f24ba278a30e64de701bce3a319e27ec  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/2.cc
  23d3fbe4f95252ddc6c87652f3f17301  libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/3.cc
  851ef525b608229ae38c93aa932c06f2  libstdc++-v3/testsuite/27_io/basic_istream/tellg/char/1.cc
*************** a48db0407637f1cdd71c37b1a9b181b6  libstd
*** 93783,93789 ****
  2d7700e164738f6fbf6631e0a5484890  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/error_failbit.cc
  260ff84676fb5b437ae01cdf7e65dc00  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_badbit_throw.cc
  468fd0ca02aace13513b22be9c28c39b  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_failbit_throw.cc
! 9edcf447006209c0aba18018dd17f3fd  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_null.cc
  5d2cf64df36dc0b695dd86e9fc0c590a  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc
  1489f62e13605fbda4e8dce999c5e18a  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/2.cc
  bb6e47e03d7a8545952a0db0afe42bf9  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/3.cc
--- 94221,94227 ----
  2d7700e164738f6fbf6631e0a5484890  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/error_failbit.cc
  260ff84676fb5b437ae01cdf7e65dc00  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_badbit_throw.cc
  468fd0ca02aace13513b22be9c28c39b  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_failbit_throw.cc
! 78dcb70f984fecbc4451000a9af8dab6  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_null.cc
  5d2cf64df36dc0b695dd86e9fc0c590a  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc
  1489f62e13605fbda4e8dce999c5e18a  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/2.cc
  bb6e47e03d7a8545952a0db0afe42bf9  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/3.cc
*************** b2131573617aeecf99a50b73c24512c5  libstd
*** 93796,93802 ****
  db57031e717a20bea87fb35a591a5342  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/error_failbit.cc
  db8e9f224f1425053849c5c36f9b426e  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_badbit_throw.cc
  58b6b9ab62e1882cdfb53a8326898fd2  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_failbit_throw.cc
! a226072e844c4a0966fa47219998a2a5  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_null.cc
  d6e2dc8dd4dc77bb8fdd377d323003db  libstdc++-v3/testsuite/27_io/basic_ostream/put/char/1.cc
  43e8eb1ee36dbe36dc49a81aa8cdc141  libstdc++-v3/testsuite/27_io/basic_ostream/put/wchar_t/1.cc
  06d04a9c072857894cd7e39aebb0b269  libstdc++-v3/testsuite/27_io/basic_ostream/requirements/base_classes.cc
--- 94234,94240 ----
  db57031e717a20bea87fb35a591a5342  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/error_failbit.cc
  db8e9f224f1425053849c5c36f9b426e  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_badbit_throw.cc
  58b6b9ab62e1882cdfb53a8326898fd2  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_failbit_throw.cc
! 5ddf9277494b2eb33a23b9c8647ddbc1  libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_null.cc
  d6e2dc8dd4dc77bb8fdd377d323003db  libstdc++-v3/testsuite/27_io/basic_ostream/put/char/1.cc
  43e8eb1ee36dbe36dc49a81aa8cdc141  libstdc++-v3/testsuite/27_io/basic_ostream/put/wchar_t/1.cc
  06d04a9c072857894cd7e39aebb0b269  libstdc++-v3/testsuite/27_io/basic_ostream/requirements/base_classes.cc
*************** b8e745bd4f7f77d2931cf06acfe56d5f  libstd
*** 93963,93968 ****
--- 94401,94407 ----
  33ed05fcdf8bb023dd2793bc16bcb084  libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/char/1057.cc
  42d5374df7f298901a352602ca5c1499  libstdc++-v3/testsuite/27_io/basic_stringbuf/sync/wchar_t/1057.cc
  662f03b78e5dfa397ab2e0a7af8f62c3  libstdc++-v3/testsuite/27_io/basic_stringstream/assign/1.cc
+ 8b3a3bf8f7c278817217556de0401ea5  libstdc++-v3/testsuite/27_io/basic_stringstream/assign/81338.cc
  4cadd2c5bd697a43a533e7a7aaff3459  libstdc++-v3/testsuite/27_io/basic_stringstream/cons/2020.cc
  4170455968ef5139e0e70139c15cb3d0  libstdc++-v3/testsuite/27_io/basic_stringstream/cons/move.cc
  c42f0bb44e5ef0e1a81a94dc819b6a9a  libstdc++-v3/testsuite/27_io/basic_stringstream/rdbuf/char/2832.cc
*************** cf19cc9cf8af8b36e758a3ef0dccd15a  libstd
*** 94020,94025 ****
--- 94459,94465 ----
  e98571c129153ed88a308f7081fcf5f4  libstdc++-v3/testsuite/27_io/ios_base/cons/copy_neg.cc
  d90072f0fa4ca5d13de78f8fb2df1748  libstdc++-v3/testsuite/27_io/ios_base/failure/cons_virtual_derivation.cc
  e8dc8fbced335d4a9c9220df1ef5c320  libstdc++-v3/testsuite/27_io/ios_base/failure/cxx11.cc
+ eca23dd20c81b5b3eeb2241138ea59d4  libstdc++-v3/testsuite/27_io/ios_base/failure/dual_abi.cc
  03c0b1eee1fd26e8a48cb77fa678ee77  libstdc++-v3/testsuite/27_io/ios_base/failure/what-1.cc
  20ec10705b067b489ce295cabb4a19da  libstdc++-v3/testsuite/27_io/ios_base/failure/what-2.cc
  6d487340f53ebd513521361eb3ee61b3  libstdc++-v3/testsuite/27_io/ios_base/failure/what-3.cc
*************** e8dc8fbced335d4a9c9220df1ef5c320  libstd
*** 94027,94033 ****
  323f3a169cfad9655e3d32c4479deae3  libstdc++-v3/testsuite/27_io/ios_base/state/1.cc
  3c244942d8c34b77f949c3c9f15e8bc6  libstdc++-v3/testsuite/27_io/ios_base/storage/1.cc
  eab20f1088bbf9265ade3e3c8bf9cade  libstdc++-v3/testsuite/27_io/ios_base/storage/11584.cc
! c8c971da5dad776febad0c50bbb7fc4e  libstdc++-v3/testsuite/27_io/ios_base/storage/2.cc
  bd704b013026eb5c8acfb5f01be08272  libstdc++-v3/testsuite/27_io/ios_base/storage/3.cc
  b89e3504beab10594e88ae0826821f77  libstdc++-v3/testsuite/27_io/ios_base/sync_with_stdio/1.cc
  e78f2cb7a78943ee4298174c7a0c0162  libstdc++-v3/testsuite/27_io/ios_base/sync_with_stdio/16959.cc
--- 94467,94473 ----
  323f3a169cfad9655e3d32c4479deae3  libstdc++-v3/testsuite/27_io/ios_base/state/1.cc
  3c244942d8c34b77f949c3c9f15e8bc6  libstdc++-v3/testsuite/27_io/ios_base/storage/1.cc
  eab20f1088bbf9265ade3e3c8bf9cade  libstdc++-v3/testsuite/27_io/ios_base/storage/11584.cc
! bee9a113f66e5e151c5d4bbca5ba476e  libstdc++-v3/testsuite/27_io/ios_base/storage/2.cc
  bd704b013026eb5c8acfb5f01be08272  libstdc++-v3/testsuite/27_io/ios_base/storage/3.cc
  b89e3504beab10594e88ae0826821f77  libstdc++-v3/testsuite/27_io/ios_base/sync_with_stdio/1.cc
  e78f2cb7a78943ee4298174c7a0c0162  libstdc++-v3/testsuite/27_io/ios_base/sync_with_stdio/16959.cc
*************** a2af18c5c7c11ae7b9cbcfbbd8d42c00  libstd
*** 94209,94214 ****
--- 94649,94655 ----
  2d10c7f90e63b4e930c138851ee22351  libstdc++-v3/testsuite/28_regex/algorithms/regex_search/ecma/flags.cc
  e673f2c47f7854ad1122e621d862fc59  libstdc++-v3/testsuite/28_regex/algorithms/regex_search/ecma/greedy.cc
  92e96f8a183d871d885d9a05c7f3db7e  libstdc++-v3/testsuite/28_regex/algorithms/regex_search/ecma/string_01.cc
+ ae7cc96a479268e856050fc8f30ab5fc  libstdc++-v3/testsuite/28_regex/basic_regex/85098.cc
  ec9c913e3a38c96b76ec0f55cc3a5c2b  libstdc++-v3/testsuite/28_regex/basic_regex/assign/char/cstring.cc
  f6873491b6064ddb3240dda9a71ecd01  libstdc++-v3/testsuite/28_regex/basic_regex/assign/char/cstring_op.cc
  9d575ba11f4adac1dc96b5a5e4327399  libstdc++-v3/testsuite/28_regex/basic_regex/assign/char/moveable.cc
*************** f44c2ffa421b83361a9ec3eed78c4801  libstd
*** 94223,94228 ****
--- 94664,94670 ----
  fd750e4a2c415def3a6f913de17898a6  libstdc++-v3/testsuite/28_regex/basic_regex/assign/wchar_t/string.cc
  e7067fbe523c6772056bbd3db6b5a262  libstdc++-v3/testsuite/28_regex/basic_regex/assign/wchar_t/string_op.cc
  d07c560931ec5252834914b445bcfe26  libstdc++-v3/testsuite/28_regex/basic_regex/ctors/47724.cc
+ 74bec8544e256a4e7e3ee73b36ae3dd9  libstdc++-v3/testsuite/28_regex/basic_regex/ctors/83598.cc
  326bbf252dc9afc3d66f09406a11ce06  libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/cstring.cc
  7dc043298e8d07ca8f8b5631dd113491  libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/default.cc
  1f2aed16200172a658646299e552350c  libstdc++-v3/testsuite/28_regex/basic_regex/ctors/basic/iter.cc
*************** bf60158dcc00c3ea39e83b29a5c777ad  libstd
*** 94272,94279 ****
  aa8b45eb480135efed8312580ddfe7c7  libstdc++-v3/testsuite/28_regex/iterators/regex_token_iterator/typedefs.cc
  533f3fb9d009c51d8d93ac3395efff57  libstdc++-v3/testsuite/28_regex/iterators/regex_token_iterator/wchar_t/string_01.cc
  e6ae3ef8474cf9af874bf5660b005c59  libstdc++-v3/testsuite/28_regex/iterators/regex_token_iterator/wchar_t/wstring_02.cc
! 7c65c76b8f69b04a6d3affce56f57104  libstdc++-v3/testsuite/28_regex/match_results/ctors/char/default.cc
! 02a2a7acf65d517be07878d1ae9eed97  libstdc++-v3/testsuite/28_regex/match_results/ctors/wchar_t/default.cc
  073266b7d939b361e1ecdc242c5e0104  libstdc++-v3/testsuite/28_regex/match_results/format.cc
  593f87ccf01178e928d75c278bf0af16  libstdc++-v3/testsuite/28_regex/match_results/out_of_range_submatches.cc
  e2d7778e834dc03d399bd1c0871ebde4  libstdc++-v3/testsuite/28_regex/match_results/swap.cc
--- 94714,94721 ----
  aa8b45eb480135efed8312580ddfe7c7  libstdc++-v3/testsuite/28_regex/iterators/regex_token_iterator/typedefs.cc
  533f3fb9d009c51d8d93ac3395efff57  libstdc++-v3/testsuite/28_regex/iterators/regex_token_iterator/wchar_t/string_01.cc
  e6ae3ef8474cf9af874bf5660b005c59  libstdc++-v3/testsuite/28_regex/iterators/regex_token_iterator/wchar_t/wstring_02.cc
! 39dcbe6c5e4ba2c04364d011397ac4c3  libstdc++-v3/testsuite/28_regex/match_results/ctors/char/default.cc
! f1b008a0a5036d995774da56d5a6ac41  libstdc++-v3/testsuite/28_regex/match_results/ctors/wchar_t/default.cc
  073266b7d939b361e1ecdc242c5e0104  libstdc++-v3/testsuite/28_regex/match_results/format.cc
  593f87ccf01178e928d75c278bf0af16  libstdc++-v3/testsuite/28_regex/match_results/out_of_range_submatches.cc
  e2d7778e834dc03d399bd1c0871ebde4  libstdc++-v3/testsuite/28_regex/match_results/swap.cc
*************** a3c32ea625e7133381af55967ac7934e  libstd
*** 94395,94400 ****
--- 94837,94843 ----
  ac93462ac46e6adef95436a48c1e4093  libstdc++-v3/testsuite/30_threads/condition_variable/members/2.cc
  cc6d47d9cf1e188e9a4bc1eee7c57159  libstdc++-v3/testsuite/30_threads/condition_variable/members/3.cc
  0b3933dfdf4ce149be19e04ab7cb9fac  libstdc++-v3/testsuite/30_threads/condition_variable/members/53841.cc
+ e41d4c945b968438b8145284a8fc5b9a  libstdc++-v3/testsuite/30_threads/condition_variable/members/68519.cc
  8606d2721afb1f5a8aecf3c74893c88c  libstdc++-v3/testsuite/30_threads/condition_variable/native_handle/typesizes.cc
  a25a2d09f376def5231c25e40b03af13  libstdc++-v3/testsuite/30_threads/condition_variable/requirements/standard_layout.cc
  387d7f1ede0bfa5f47190190d02422cc  libstdc++-v3/testsuite/30_threads/condition_variable/requirements/typedefs.cc
*************** f46b45b2fc60d78d8abbd31962e4851d  libstd
*** 94489,94500 ****
  012f04e51c2b84669b77167a5a1c3b7d  libstdc++-v3/testsuite/30_threads/promise/cons/move.cc
  7cccd20c7eb716cb0843c95395f35172  libstdc++-v3/testsuite/30_threads/promise/cons/move_assign.cc
  c989ca9111fee620e2dce7554adce426  libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit.cc
  f0f85a799955133b7a855b3bf3f24f92  libstdc++-v3/testsuite/30_threads/promise/members/get_future.cc
  39938e5c1f1aeb6e3e5e7a4a18a1ea54  libstdc++-v3/testsuite/30_threads/promise/members/get_future2.cc
! 379adad83d8613d255d7f091d355b5bb  libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc
! b638731e6f47dafe870355e482300f2d  libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc
  9b3ca5156dbda4c4db4c7d6f6607f63d  libstdc++-v3/testsuite/30_threads/promise/members/set_value.cc
! 7de52693f9685a166a7380facab29c65  libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc
  43cf65219264b0b869c8ac69e536e9c2  libstdc++-v3/testsuite/30_threads/promise/members/set_value3.cc
  3dfe01b048f728b3a6c0a6fa0a076bbd  libstdc++-v3/testsuite/30_threads/promise/members/swap.cc
  be43870e1046f79c248bfe445b65ba7a  libstdc++-v3/testsuite/30_threads/promise/requirements/explicit_instantiation.cc
--- 94932,94944 ----
  012f04e51c2b84669b77167a5a1c3b7d  libstdc++-v3/testsuite/30_threads/promise/cons/move.cc
  7cccd20c7eb716cb0843c95395f35172  libstdc++-v3/testsuite/30_threads/promise/cons/move_assign.cc
  c989ca9111fee620e2dce7554adce426  libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit.cc
+ 66e12ffc5b86e79d5b84ac3aa470bf12  libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit2.cc
  f0f85a799955133b7a855b3bf3f24f92  libstdc++-v3/testsuite/30_threads/promise/members/get_future.cc
  39938e5c1f1aeb6e3e5e7a4a18a1ea54  libstdc++-v3/testsuite/30_threads/promise/members/get_future2.cc
! e522fbe5cae2f671871d846b7793b92f  libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc
! 41a3d4bde9d8fa5fc49ccb294b94a717  libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc
  9b3ca5156dbda4c4db4c7d6f6607f63d  libstdc++-v3/testsuite/30_threads/promise/members/set_value.cc
! 7142842d1e74dfd2c3c9602fd20bd8d8  libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc
  43cf65219264b0b869c8ac69e536e9c2  libstdc++-v3/testsuite/30_threads/promise/members/set_value3.cc
  3dfe01b048f728b3a6c0a6fa0a076bbd  libstdc++-v3/testsuite/30_threads/promise/members/swap.cc
  be43870e1046f79c248bfe445b65ba7a  libstdc++-v3/testsuite/30_threads/promise/requirements/explicit_instantiation.cc
*************** f9130543194f9b55a8d690474e1b5667  libstd
*** 94833,94845 ****
  f1868e7d6427fc60964c1a38200d329f  libstdc++-v3/testsuite/experimental/feat-lib-fund.cc
  8c9816267e94cdeb88740b77585997dc  libstdc++-v3/testsuite/experimental/filesystem/iterators/directory_iterator.cc
  09405f2af0f3448849c49ea3f093012e  libstdc++-v3/testsuite/experimental/filesystem/iterators/pop.cc
! 71146c17f150ae60b39a4e7331f72d5b  libstdc++-v3/testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc
  6659047a437b84cfb9f2391f87429043  libstdc++-v3/testsuite/experimental/filesystem/operations/absolute.cc
  cb96d4f460d63079de67211a5fa98add  libstdc++-v3/testsuite/experimental/filesystem/operations/canonical.cc
  e099febbfd032e97752627fb7599d6ea  libstdc++-v3/testsuite/experimental/filesystem/operations/copy.cc
  2bd6d91dacdd9dbcc53871916c94e881  libstdc++-v3/testsuite/experimental/filesystem/operations/copy_file.cc
  5b67c7238f734df125c006ea8e224a86  libstdc++-v3/testsuite/experimental/filesystem/operations/create_directories.cc
! 25adc7117e80c1cd1e18b1cde11f4c1e  libstdc++-v3/testsuite/experimental/filesystem/operations/create_directory.cc
  f196d8a5557ca44e25f99d040227cf53  libstdc++-v3/testsuite/experimental/filesystem/operations/create_symlink.cc
  c5446130c200098a30ef1dc1a283b2b9  libstdc++-v3/testsuite/experimental/filesystem/operations/current_path.cc
  bfa52f563514942769365cebf52db243  libstdc++-v3/testsuite/experimental/filesystem/operations/equivalent.cc
--- 95277,95289 ----
  f1868e7d6427fc60964c1a38200d329f  libstdc++-v3/testsuite/experimental/feat-lib-fund.cc
  8c9816267e94cdeb88740b77585997dc  libstdc++-v3/testsuite/experimental/filesystem/iterators/directory_iterator.cc
  09405f2af0f3448849c49ea3f093012e  libstdc++-v3/testsuite/experimental/filesystem/iterators/pop.cc
! 01e4a97ef36eed5ca291224154ce3dca  libstdc++-v3/testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc
  6659047a437b84cfb9f2391f87429043  libstdc++-v3/testsuite/experimental/filesystem/operations/absolute.cc
  cb96d4f460d63079de67211a5fa98add  libstdc++-v3/testsuite/experimental/filesystem/operations/canonical.cc
  e099febbfd032e97752627fb7599d6ea  libstdc++-v3/testsuite/experimental/filesystem/operations/copy.cc
  2bd6d91dacdd9dbcc53871916c94e881  libstdc++-v3/testsuite/experimental/filesystem/operations/copy_file.cc
  5b67c7238f734df125c006ea8e224a86  libstdc++-v3/testsuite/experimental/filesystem/operations/create_directories.cc
! e2e6c6842158fdb33229616047d50f2d  libstdc++-v3/testsuite/experimental/filesystem/operations/create_directory.cc
  f196d8a5557ca44e25f99d040227cf53  libstdc++-v3/testsuite/experimental/filesystem/operations/create_symlink.cc
  c5446130c200098a30ef1dc1a283b2b9  libstdc++-v3/testsuite/experimental/filesystem/operations/current_path.cc
  bfa52f563514942769365cebf52db243  libstdc++-v3/testsuite/experimental/filesystem/operations/equivalent.cc
*************** bfa52f563514942769365cebf52db243  libstd
*** 94849,94857 ****
  eaff3228cf1ff8e565010694223cf740  libstdc++-v3/testsuite/experimental/filesystem/operations/last_write_time.cc
  75d957c4b12b36e2c8ad4dafcbb38b7e  libstdc++-v3/testsuite/experimental/filesystem/operations/permissions.cc
  0b5583eb8c787ab674d52524949241cf  libstdc++-v3/testsuite/experimental/filesystem/operations/read_symlink.cc
! 48c4df973a2bff73a27aba30e8a38a60  libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc
  6c082c2b9134f256176dbd1ced18ec29  libstdc++-v3/testsuite/experimental/filesystem/operations/status.cc
! aa5de5852903c2554123ad89bedbc2fb  libstdc++-v3/testsuite/experimental/filesystem/operations/temp_directory_path.cc
  6572ad4bfd145d4c0c079938a286897c  libstdc++-v3/testsuite/experimental/filesystem/path/append/path.cc
  29cc648c83473958049c9861244515db  libstdc++-v3/testsuite/experimental/filesystem/path/assign/assign.cc
  73c54e0a86ca8b5f80d917d6a017a8f3  libstdc++-v3/testsuite/experimental/filesystem/path/assign/copy.cc
--- 95293,95303 ----
  eaff3228cf1ff8e565010694223cf740  libstdc++-v3/testsuite/experimental/filesystem/operations/last_write_time.cc
  75d957c4b12b36e2c8ad4dafcbb38b7e  libstdc++-v3/testsuite/experimental/filesystem/operations/permissions.cc
  0b5583eb8c787ab674d52524949241cf  libstdc++-v3/testsuite/experimental/filesystem/operations/read_symlink.cc
! df350a2f65d9bbc779786eda2f6c877e  libstdc++-v3/testsuite/experimental/filesystem/operations/remove.cc
! 1169eb31ff426d7e3dba5ef690160536  libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc
! 1ecb7facd18a43c15be322da8c64e658  libstdc++-v3/testsuite/experimental/filesystem/operations/space.cc
  6c082c2b9134f256176dbd1ced18ec29  libstdc++-v3/testsuite/experimental/filesystem/operations/status.cc
! af21fd487ebe44f081535625e75cd3fd  libstdc++-v3/testsuite/experimental/filesystem/operations/temp_directory_path.cc
  6572ad4bfd145d4c0c079938a286897c  libstdc++-v3/testsuite/experimental/filesystem/path/append/path.cc
  29cc648c83473958049c9861244515db  libstdc++-v3/testsuite/experimental/filesystem/path/assign/assign.cc
  73c54e0a86ca8b5f80d917d6a017a8f3  libstdc++-v3/testsuite/experimental/filesystem/path/assign/copy.cc
*************** cb19ffc36ecae2a649dd87d88520aefc  libstd
*** 94874,94880 ****
  7d35cfcc7bfa456c71aac6701d8e85c0  libstdc++-v3/testsuite/experimental/filesystem/path/decompose/root_path.cc
  ed2ac06f97a23585ba0cb4bf6dd5c18f  libstdc++-v3/testsuite/experimental/filesystem/path/decompose/stem.cc
  3a7a5e68d301aad8a7c82ff67e207367  libstdc++-v3/testsuite/experimental/filesystem/path/generic/generic_string.cc
! d5aadbd7b3502ccd1026998c7cfc3bb9  libstdc++-v3/testsuite/experimental/filesystem/path/itr/traversal.cc
  3c03c286d897a0c7a5175cb3b5343987  libstdc++-v3/testsuite/experimental/filesystem/path/modifiers/clear.cc
  0017f3c1dc090d976a8fe0a94899e6c0  libstdc++-v3/testsuite/experimental/filesystem/path/modifiers/make_preferred.cc
  d223857288518031c69d12c39b3f5f18  libstdc++-v3/testsuite/experimental/filesystem/path/modifiers/remove_filename.cc
--- 95320,95326 ----
  7d35cfcc7bfa456c71aac6701d8e85c0  libstdc++-v3/testsuite/experimental/filesystem/path/decompose/root_path.cc
  ed2ac06f97a23585ba0cb4bf6dd5c18f  libstdc++-v3/testsuite/experimental/filesystem/path/decompose/stem.cc
  3a7a5e68d301aad8a7c82ff67e207367  libstdc++-v3/testsuite/experimental/filesystem/path/generic/generic_string.cc
! 61946b5daacfaa34107d0d15a621393f  libstdc++-v3/testsuite/experimental/filesystem/path/itr/traversal.cc
  3c03c286d897a0c7a5175cb3b5343987  libstdc++-v3/testsuite/experimental/filesystem/path/modifiers/clear.cc
  0017f3c1dc090d976a8fe0a94899e6c0  libstdc++-v3/testsuite/experimental/filesystem/path/modifiers/make_preferred.cc
  d223857288518031c69d12c39b3f5f18  libstdc++-v3/testsuite/experimental/filesystem/path/modifiers/remove_filename.cc
*************** c4b1087862c4083c3916414a0e9ab53e  libstd
*** 94934,94939 ****
--- 95380,95386 ----
  070f72cad715d52fbb7f562052cd8231  libstdc++-v3/testsuite/experimental/memory/shared_ptr/observers/owner_before.cc
  19a87aff6cab6612f673b1b6bbb83561  libstdc++-v3/testsuite/experimental/memory/shared_ptr/observers/use_count.cc
  d76f77a05da4f9bccc54a418c5480422  libstdc++-v3/testsuite/experimental/memory_resource/1.cc
+ 53d343d6ffb01123f090bc970ed1488c  libstdc++-v3/testsuite/experimental/memory_resource/70966.cc
  433d79761e6e012f2ea4835338ef95f8  libstdc++-v3/testsuite/experimental/memory_resource/null_memory_resource.cc
  50a1072449816a3c9c47e8c9766e9432  libstdc++-v3/testsuite/experimental/memory_resource/resource_adaptor.cc
  ae383e40a008068368a3fbeff039591f  libstdc++-v3/testsuite/experimental/numeric/77801.cc
*************** f08b114e705137b40790f9b48f462bab  libstd
*** 94985,94990 ****
--- 95432,95451 ----
  28daac440926972161ec53368628d43d  libstdc++-v3/testsuite/experimental/optional/requirements.cc
  40321fd5cd35785aa22edb36a986b84d  libstdc++-v3/testsuite/experimental/optional/swap/1.cc
  cc4907e23dd0fb727986d8fd6868c6e8  libstdc++-v3/testsuite/experimental/optional/typedefs.cc
+ c3f80752f52320876c9a0b11ff35c6e4  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc
+ d3ebecbaef5cd9c0d76022d2d3df886e  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_forward_list.cc
+ b35a82ac96d8d15c6addb38defbde427  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc
+ fbbf3e19ec56bfe247c1b72798c37be4  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc
+ f5f8fc5b35b03d64d14fee2d81625c54  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc
+ 53070d7ca65a052b2d89b36ef3b5a0c0  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multimap.cc
+ a30c748b6a97d2c4892aa24a0fbc0880  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multiset.cc
+ c5abd4aafc3fec483cd95ebc344e712f  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc
+ 35facf76c614d8617117d011a9e37b60  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc
+ 3459b28c035970ee3708ac36f2ecd5f3  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_map.cc
+ b277f0762660cd139d817dfb988449ea  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multimap.cc
+ 6be113499615d2d17456cee5d87c54c1  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multiset.cc
+ 00b813fb6b7912a85bb70f5767ee23b9  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_set.cc
+ ea972918fe28408335e8d107add7ced2  libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc
  a9dc5dfedba4c52323416b23afe6a705  libstdc++-v3/testsuite/experimental/propagate_const/assignment/copy.cc
  1931bd9ee87482c35d34ff6f7efc3798  libstdc++-v3/testsuite/experimental/propagate_const/assignment/move.cc
  3edfc0088186420b07b8360380cbd8ad  libstdc++-v3/testsuite/experimental/propagate_const/assignment/move_neg.cc
*************** e68c90937dda3a58c15860c817c3abe7  libstd
*** 95111,95117 ****
  e31afe67fa89f6b45258b09a6c16754f  libstdc++-v3/testsuite/ext/enc_filebuf/char/13189.cc
  40798ce06d803867475819f4746a891f  libstdc++-v3/testsuite/ext/enc_filebuf/char/13598.cc
  b4b36790915c4ec06140ba96e7f7d313  libstdc++-v3/testsuite/ext/enc_filebuf/wchar_t/13189.cc
! 57c4e762742cf3dd57fcdedefbf819a8  libstdc++-v3/testsuite/ext/ext_pointer/1.cc
  b33b6127ee939cb7bacb608824b458dc  libstdc++-v3/testsuite/ext/ext_pointer/1_neg.cc
  385ec1bdc10b95fa5603000f0b331272  libstdc++-v3/testsuite/ext/forced_error/cons_virtual_derivation.cc
  ba6a4f212fc52ab4de6255c3a4143a6e  libstdc++-v3/testsuite/ext/headers.cc
--- 95572,95578 ----
  e31afe67fa89f6b45258b09a6c16754f  libstdc++-v3/testsuite/ext/enc_filebuf/char/13189.cc
  40798ce06d803867475819f4746a891f  libstdc++-v3/testsuite/ext/enc_filebuf/char/13598.cc
  b4b36790915c4ec06140ba96e7f7d313  libstdc++-v3/testsuite/ext/enc_filebuf/wchar_t/13189.cc
! 542630ad809e8b41a3a46af6f8b14e7a  libstdc++-v3/testsuite/ext/ext_pointer/1.cc
  b33b6127ee939cb7bacb608824b458dc  libstdc++-v3/testsuite/ext/ext_pointer/1_neg.cc
  385ec1bdc10b95fa5603000f0b331272  libstdc++-v3/testsuite/ext/forced_error/cons_virtual_derivation.cc
  ba6a4f212fc52ab4de6255c3a4143a6e  libstdc++-v3/testsuite/ext/headers.cc
*************** d87c528fef89174f4b009a39059764aa  libstd
*** 95347,95352 ****
--- 95808,95815 ----
  6d481e8d41d85d3f9adc43f207071661  libstdc++-v3/testsuite/ext/stdio_filebuf/char/10063-2.cc
  cacc2855ee42b2c0ed738c61d97cdd1f  libstdc++-v3/testsuite/ext/stdio_filebuf/char/10063-3.cc
  1d5591bc7c3e10763fd7ef70e79f2790  libstdc++-v3/testsuite/ext/stdio_filebuf/char/2.cc
+ 27988ec57765b6fad6dc4a46c6e8d093  libstdc++-v3/testsuite/ext/stdio_filebuf/char/79820.cc
+ a5b76ab5544142437a4202bcc0dcd2c0  libstdc++-v3/testsuite/ext/stdio_filebuf/char/81751.cc
  39618da6b34877e8565d7577b83deb9a  libstdc++-v3/testsuite/ext/stdio_filebuf/requirements/explicit_instantiation.cc
  a598a9902a724e127a513caa4c0f1625  libstdc++-v3/testsuite/ext/stdio_sync_filebuf/char/1.cc
  bbb6bdbbc9eca1700569d8a2c131477c  libstdc++-v3/testsuite/ext/stdio_sync_filebuf/char/12048-1.cc
*************** a086341127ac94f37ff66c7c773d89cc  libstd
*** 95419,95425 ****
  f5cb26e5acb618dc205f2d9c4a513192  libstdc++-v3/testsuite/ext/vstring/types/23767.cc
  57e26cc1ed3603f247cb312173ea36a6  libstdc++-v3/testsuite/lib/dg-options.exp
  b15c6db83318815cd34020c84f331491  libstdc++-v3/testsuite/lib/gdb-test.exp
! 95d28e8418d69f55fb5b4b4c37830c36  libstdc++-v3/testsuite/lib/libstdc++.exp
  7e746431e30f257ac50d8718bdbb815f  libstdc++-v3/testsuite/lib/prune.exp
  b3c3d1874b99c71e9b712cbeef9b38bc  libstdc++-v3/testsuite/libstdc++-abi/abi.exp
  74d9b6079ff372f6105439bdb293da63  libstdc++-v3/testsuite/libstdc++-dg/conformance.exp
--- 95882,95888 ----
  f5cb26e5acb618dc205f2d9c4a513192  libstdc++-v3/testsuite/ext/vstring/types/23767.cc
  57e26cc1ed3603f247cb312173ea36a6  libstdc++-v3/testsuite/lib/dg-options.exp
  b15c6db83318815cd34020c84f331491  libstdc++-v3/testsuite/lib/gdb-test.exp
! 268e13c1a23286651cf2d380ac201f80  libstdc++-v3/testsuite/lib/libstdc++.exp
  7e746431e30f257ac50d8718bdbb815f  libstdc++-v3/testsuite/lib/prune.exp
  b3c3d1874b99c71e9b712cbeef9b38bc  libstdc++-v3/testsuite/libstdc++-abi/abi.exp
  74d9b6079ff372f6105439bdb293da63  libstdc++-v3/testsuite/libstdc++-dg/conformance.exp
*************** e89aed78eb0c5a1be98e970dfc9cd16d  libstd
*** 96301,96307 ****
  5e9c3749239e9bb533aa20bfd1ac1aec  libstdc++-v3/testsuite/util/testsuite_abi.h
  36e2943cac49fc06d42450a302758c3c  libstdc++-v3/testsuite/util/testsuite_abi_check.cc
  c587eb9f6eefadcca70f4af1ad3e6d04  libstdc++-v3/testsuite/util/testsuite_allocator.cc
! 3796cdb7b688bf1efef8c3f22b90e60a  libstdc++-v3/testsuite/util/testsuite_allocator.h
  5949296edbbfd2bde121909d2690903a  libstdc++-v3/testsuite/util/testsuite_api.h
  dba65a8227d38a8c35d47991059d8db3  libstdc++-v3/testsuite/util/testsuite_character.cc
  47447d98ff7c4851fbe64fc8f0e54f33  libstdc++-v3/testsuite/util/testsuite_character.h
--- 96764,96770 ----
  5e9c3749239e9bb533aa20bfd1ac1aec  libstdc++-v3/testsuite/util/testsuite_abi.h
  36e2943cac49fc06d42450a302758c3c  libstdc++-v3/testsuite/util/testsuite_abi_check.cc
  c587eb9f6eefadcca70f4af1ad3e6d04  libstdc++-v3/testsuite/util/testsuite_allocator.cc
! 8e597ec84b241d14c2914463823e3629  libstdc++-v3/testsuite/util/testsuite_allocator.h
  5949296edbbfd2bde121909d2690903a  libstdc++-v3/testsuite/util/testsuite_api.h
  dba65a8227d38a8c35d47991059d8db3  libstdc++-v3/testsuite/util/testsuite_character.cc
  47447d98ff7c4851fbe64fc8f0e54f33  libstdc++-v3/testsuite/util/testsuite_character.h
*************** b68e0657596760163b695df6c9e0547e  libstd
*** 96328,96334 ****
  204ec69a032d5a889dacc11cf18fa4ed  libstdc++-v3/testsuite/util/thread/all.h
  b950d655469c477755252b1e18009596  libtool-ldflags
  7a2b83d2d625a4022b9213ceb75f5897  libtool.m4
! dbf8cf46013372fb608e22baa003d652  libvtv/ChangeLog
  580d40bdd6efd6663aa0d78101a2ef1a  libvtv/Makefile.am
  c9973f89d6d559403509edf0c5aa127f  libvtv/Makefile.in
  4ce86f8604e6c86211a4cb2025ffc53e  libvtv/acinclude.m4
--- 96791,96797 ----
  204ec69a032d5a889dacc11cf18fa4ed  libstdc++-v3/testsuite/util/thread/all.h
  b950d655469c477755252b1e18009596  libtool-ldflags
  7a2b83d2d625a4022b9213ceb75f5897  libtool.m4
! 8726829f6703c55d658a75553be5a7f3  libvtv/ChangeLog
  580d40bdd6efd6663aa0d78101a2ef1a  libvtv/Makefile.am
  c9973f89d6d559403509edf0c5aa127f  libvtv/Makefile.in
  4ce86f8604e6c86211a4cb2025ffc53e  libvtv/acinclude.m4
*************** aaf93f12a8558a61140e7da299033d08  libvtv
*** 96411,96430 ****
  c69f9a511aeaa739d64c2ad1e42b2824  libvtv/vtv_utils.h
  247597a3fcc5b5aa8bd923351c59d853  ltgcc.m4
  4e65f2f6a05f5eca82ba79c6363aa3db  ltmain.sh
! e6c5f4122b9865d1ae6e40aae9a05d46  lto-plugin/ChangeLog
  85ecc9762e15f3f34eda1f4861238840  lto-plugin/Makefile.am
  7659e38293e2e0eefda3737f344a6a79  lto-plugin/Makefile.in
  b8a21afb1f79664ea28d8892b4907746  lto-plugin/aclocal.m4
  c909bce91afa78f99f55375d7dd5880d  lto-plugin/config.h.in
  bfdb3a3dba29f5fd970f4aab2b383da3  lto-plugin/configure
  8eb75a62568c5a1eaf104d9bcbc243a2  lto-plugin/configure.ac
! f0a4448e47252ad58a821b2bc98c5aaf  lto-plugin/lto-plugin.c
  139179f8500d6f092a4f53d8f4da7f5c  lto-plugin/lto-symtab.c
  dee72a6a60e99528b0d17bf3ff9a1e15  ltoptions.m4
  bc2f6032c98896249eadb56177c7d357  ltsugar.m4
  c30cd33c496505f13d9fbdb6970c7c33  ltversion.m4
  293853a13b7e218e3a4342cf85fbbf25  lt~obsolete.m4
! 1cf49dcd8bc65e2e24dc6e43f5ef1622  maintainer-scripts/ChangeLog
  33c7bc2d2c55956dfac85a05d8a80eff  maintainer-scripts/README
  d0d4b92a5ba9606c481075c7bf65469a  maintainer-scripts/crontab
  91544f3a251dde1c76b2b9a58aee73a9  maintainer-scripts/gcc_release
--- 96874,96893 ----
  c69f9a511aeaa739d64c2ad1e42b2824  libvtv/vtv_utils.h
  247597a3fcc5b5aa8bd923351c59d853  ltgcc.m4
  4e65f2f6a05f5eca82ba79c6363aa3db  ltmain.sh
! c1847432e63499f6444e13a5f0700d4a  lto-plugin/ChangeLog
  85ecc9762e15f3f34eda1f4861238840  lto-plugin/Makefile.am
  7659e38293e2e0eefda3737f344a6a79  lto-plugin/Makefile.in
  b8a21afb1f79664ea28d8892b4907746  lto-plugin/aclocal.m4
  c909bce91afa78f99f55375d7dd5880d  lto-plugin/config.h.in
  bfdb3a3dba29f5fd970f4aab2b383da3  lto-plugin/configure
  8eb75a62568c5a1eaf104d9bcbc243a2  lto-plugin/configure.ac
! 4cb1ef621fddd4b87c518b356aaf99ab  lto-plugin/lto-plugin.c
  139179f8500d6f092a4f53d8f4da7f5c  lto-plugin/lto-symtab.c
  dee72a6a60e99528b0d17bf3ff9a1e15  ltoptions.m4
  bc2f6032c98896249eadb56177c7d357  ltsugar.m4
  c30cd33c496505f13d9fbdb6970c7c33  ltversion.m4
  293853a13b7e218e3a4342cf85fbbf25  lt~obsolete.m4
! 00083deaec349cb28b74df13aec8c884  maintainer-scripts/ChangeLog
  33c7bc2d2c55956dfac85a05d8a80eff  maintainer-scripts/README
  d0d4b92a5ba9606c481075c7bf65469a  maintainer-scripts/crontab
  91544f3a251dde1c76b2b9a58aee73a9  maintainer-scripts/gcc_release
*************** fbe2467afef81c41c166173adeb0ee20  mkdep
*** 96440,96446 ****
  cf2baa0854f564a7785307e79f155efc  symlink-tree
  cb06c1be6a41d68b0a65e0c1a91752bc  ylwrap
  165622295231e685aaf15ec8de9e67f1  zlib/CMakeLists.txt
! 6e27603bd93ec345e60cfdf4f2cecffb  zlib/ChangeLog
  15b985f2db030e174ecd9aefc95df09b  zlib/ChangeLog.gcj
  0e9a37be8e3b85cc0ccf60504064c297  zlib/ChangeLog.jit
  b7a1991f01daea3efe108a215c5514a5  zlib/FAQ
--- 96903,96909 ----
  cf2baa0854f564a7785307e79f155efc  symlink-tree
  cb06c1be6a41d68b0a65e0c1a91752bc  ylwrap
  165622295231e685aaf15ec8de9e67f1  zlib/CMakeLists.txt
! c293426ea9b4905f713ffb72c36fb874  zlib/ChangeLog
  15b985f2db030e174ecd9aefc95df09b  zlib/ChangeLog.gcj
  0e9a37be8e3b85cc0ccf60504064c297  zlib/ChangeLog.jit
  b7a1991f01daea3efe108a215c5514a5  zlib/FAQ
diff -Nrcpad gcc-6.4.0/NEWS gcc-6.5.0/NEWS
*** gcc-6.4.0/NEWS	Tue Jul  4 07:29:30 2017
--- gcc-6.5.0/NEWS	Fri Oct 26 09:57:01 2018
*************** see ONEWS.
*** 6,35 ****
  
  ======================================================================
  http://gcc.gnu.org/gcc-6/index.html
- 
                                GCC 6 Release Series
  
!    July 4, 2017
  
     The [1]GNU project and the GCC developers are pleased to announce the
!    release of GCC 6.4.
  
     This release is a bug-fix release, containing fixes for regressions in
!    GCC 6.3 relative to previous releases of GCC.
  
  Release History
  
     GCC 6.4
!           July 4, 2017 ([2]changes, [3]documentation)
  
     GCC 6.3
!           December 21, 2016 ([4]changes, [5]documentation)
  
     GCC 6.2
!           August 22, 2016 ([6]changes, [7]documentation)
  
     GCC 6.1
!           April 27, 2016 ([8]changes, [9]documentation)
  
  References and Acknowledgements
  
--- 6,37 ----
  
  ======================================================================
  http://gcc.gnu.org/gcc-6/index.html
                                GCC 6 Release Series
  
!    October 26, 2018
  
     The [1]GNU project and the GCC developers are pleased to announce the
!    release of GCC 6.5.
  
     This release is a bug-fix release, containing fixes for regressions in
!    GCC 6.4 relative to previous releases of GCC.
  
  Release History
  
+    GCC 6.5
+           October 26, 2018 ([2]changes, [3]documentation)
+ 
     GCC 6.4
!           July 4, 2017 ([4]changes, [5]documentation)
  
     GCC 6.3
!           December 21, 2016 ([6]changes, [7]documentation)
  
     GCC 6.2
!           August 22, 2016 ([8]changes, [9]documentation)
  
     GCC 6.1
!           April 27, 2016 ([10]changes, [11]documentation)
  
  References and Acknowledgements
  
*************** References and Acknowledgements
*** 37,97 ****
     supports several other languages aside from C, it now stands for the
     GNU Compiler Collection.
  
!    A list of [10]successful builds is updated as new information becomes
     available.
  
     The GCC developers would like to thank the numerous people that have
     contributed new features, improvements, bug fixes, and other changes as
!    well as test results to GCC. This [11]amazing group of volunteers is
     what makes GCC successful.
  
!    For additional information about GCC please refer to the [12]GCC
!    project web site or contact the [13]GCC development mailing list.
  
!    To obtain GCC please use [14]our mirror sites or [15]our SVN server.
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [16]GCC manuals. If that fails, the
!     [17]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [18]gcc@gcc.gnu.org. All of [19]our lists have public
      archives.
  
!    Copyright (C) [20]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [21]maintained by the GCC team. Last modified
!    2017-07-04[22].
  
  References
  
     1. http://www.gnu.org/
     2. http://gcc.gnu.org/gcc-6/changes.html
!    3. http://gcc.gnu.org/onlinedocs/6.4.0/
     4. http://gcc.gnu.org/gcc-6/changes.html
!    5. http://gcc.gnu.org/onlinedocs/6.3.0/
     6. http://gcc.gnu.org/gcc-6/changes.html
!    7. http://gcc.gnu.org/onlinedocs/6.2.0/
     8. http://gcc.gnu.org/gcc-6/changes.html
!    9. http://gcc.gnu.org/onlinedocs/6.1.0/
!   10. http://gcc.gnu.org/gcc-6/buildstat.html
!   11. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
!   12. http://gcc.gnu.org/index.html
!   13. mailto:gcc@gcc.gnu.org
!   14. http://gcc.gnu.org/mirrors.html
!   15. http://gcc.gnu.org/svn.html
!   16. https://gcc.gnu.org/onlinedocs/
!   17. mailto:gcc-help@gcc.gnu.org
!   18. mailto:gcc@gcc.gnu.org
!   19. https://gcc.gnu.org/lists.html
!   20. http://www.fsf.org/
!   21. https://gcc.gnu.org/about.html
!   22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-6/changes.html
- 
                                GCC 6 Release Series
                          Changes, New Features, and Fixes
  
--- 39,100 ----
     supports several other languages aside from C, it now stands for the
     GNU Compiler Collection.
  
!    A list of [12]successful builds is updated as new information becomes
     available.
  
     The GCC developers would like to thank the numerous people that have
     contributed new features, improvements, bug fixes, and other changes as
!    well as test results to GCC. This [13]amazing group of volunteers is
     what makes GCC successful.
  
!    For additional information about GCC please refer to the [14]GCC
!    project web site or contact the [15]GCC development mailing list.
  
!    To obtain GCC please use [16]our mirror sites or [17]our SVN server.
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [18]GCC manuals. If that fails, the
!     [19]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [20]gcc@gcc.gnu.org. All of [21]our lists have public
      archives.
  
!    Copyright (C) [22]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [23]maintained by the GCC team. Last modified
!    2018-10-26[24].
  
  References
  
     1. http://www.gnu.org/
     2. http://gcc.gnu.org/gcc-6/changes.html
!    3. http://gcc.gnu.org/onlinedocs/6.5.0/
     4. http://gcc.gnu.org/gcc-6/changes.html
!    5. http://gcc.gnu.org/onlinedocs/6.4.0/
     6. http://gcc.gnu.org/gcc-6/changes.html
!    7. http://gcc.gnu.org/onlinedocs/6.3.0/
     8. http://gcc.gnu.org/gcc-6/changes.html
!    9. http://gcc.gnu.org/onlinedocs/6.2.0/
!   10. http://gcc.gnu.org/gcc-6/changes.html
!   11. http://gcc.gnu.org/onlinedocs/6.1.0/
!   12. http://gcc.gnu.org/gcc-6/buildstat.html
!   13. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
!   14. http://gcc.gnu.org/index.html
!   15. mailto:gcc@gcc.gnu.org
!   16. http://gcc.gnu.org/mirrors.html
!   17. http://gcc.gnu.org/svn.html
!   18. https://gcc.gnu.org/onlinedocs/
!   19. mailto:gcc-help@gcc.gnu.org
!   20. mailto:gcc@gcc.gnu.org
!   21. https://gcc.gnu.org/lists.html
!   22. https://www.fsf.org/
!   23. https://gcc.gnu.org/about.html
!   24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-6/changes.html
                                GCC 6 Release Series
                          Changes, New Features, and Fixes
  
*************** Operating Systems
*** 773,792 ****
  
       * The ABI changes on ARM so that no short enums are used by default.
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [25]GCC manuals. If that fails, the
!     [26]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [27]gcc@gcc.gnu.org. All of [28]our lists have public
      archives.
  
!    Copyright (C) [29]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [30]maintained by the GCC team. Last modified
!    2017-07-04[31].
  
  References
  
--- 776,802 ----
  
       * The ABI changes on ARM so that no short enums are used by default.
  
+                                     GCC 6.5
+ 
+    This is the [25]list of problem reports (PRs) from GCC's bug tracking
+    system that are known to be fixed in the 6.5 release. This list might
+    not be complete (that is, it is possible that some PRs that have been
+    fixed are not listed here).
+ 
  
      For questions related to the use of GCC, please consult these web
!     pages and the [26]GCC manuals. If that fails, the
!     [27]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [28]gcc@gcc.gnu.org. All of [29]our lists have public
      archives.
  
!    Copyright (C) [30]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [31]maintained by the GCC team. Last modified
!    2018-10-26[32].
  
  References
  
*************** References
*** 797,803 ****
     5. https://www.openacc.org/
     6. https://gcc.gnu.org/wiki/OpenACC
     7. https://gcc.gnu.org/wiki/Offloading
!    8. http://www.openmp.org/specifications/
     9. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-1266
    10. http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4377.pdf
    11. https://gcc.gnu.org/projects/cxx-status.html#cxx1z
--- 807,813 ----
     5. https://www.openacc.org/
     6. https://gcc.gnu.org/wiki/OpenACC
     7. https://gcc.gnu.org/wiki/Offloading
!    8. https://www.openmp.org/specifications/
     9. https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-1266
    10. http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4377.pdf
    11. https://gcc.gnu.org/projects/cxx-status.html#cxx1z
*************** References
*** 814,852 ****
    22. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=6.3
    23. https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction
    24. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=6.4
!   25. https://gcc.gnu.org/onlinedocs/
!   26. mailto:gcc-help@gcc.gnu.org
!   27. mailto:gcc@gcc.gnu.org
!   28. https://gcc.gnu.org/lists.html
!   29. http://www.fsf.org/
!   30. https://gcc.gnu.org/about.html
!   31. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-5/index.html
- 
                                GCC 5 Release Series
  
!    June 3, 2016
  
     The [1]GNU project and the GCC developers are pleased to announce the
!    release of GCC 5.4.
  
     This release is a bug-fix release, containing fixes for regressions in
!    GCC 5.3 relative to previous releases of GCC.
  
  Release History
  
     GCC 5.4
!           June 3, 2016 ([2]changes, [3]documentation)
  
     GCC 5.3
!           December 4, 2015 ([4]changes, [5]documentation)
  
     GCC 5.2
!           July 16, 2015 ([6]changes, [7]documentation)
  
     GCC 5.1
!           April 22, 2015 ([8]changes, [9]documentation)
  
  References and Acknowledgements
  
--- 824,865 ----
    22. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=6.3
    23. https://software.intel.com/en-us/blogs/2016/09/12/deprecate-pcommit-instruction
    24. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=6.4
!   25. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=6.5
!   26. https://gcc.gnu.org/onlinedocs/
!   27. mailto:gcc-help@gcc.gnu.org
!   28. mailto:gcc@gcc.gnu.org
!   29. https://gcc.gnu.org/lists.html
!   30. https://www.fsf.org/
!   31. https://gcc.gnu.org/about.html
!   32. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-5/index.html
                                GCC 5 Release Series
  
!    October 10, 2017
  
     The [1]GNU project and the GCC developers are pleased to announce the
!    release of GCC 5.5.
  
     This release is a bug-fix release, containing fixes for regressions in
!    GCC 5.4 relative to previous releases of GCC.
  
  Release History
  
+    GCC 5.5
+           October 10, 2017 ([2]changes, [3]documentation)
+ 
     GCC 5.4
!           June 3, 2016 ([4]changes, [5]documentation)
  
     GCC 5.3
!           December 4, 2015 ([6]changes, [7]documentation)
  
     GCC 5.2
!           July 16, 2015 ([8]changes, [9]documentation)
  
     GCC 5.1
!           April 22, 2015 ([10]changes, [11]documentation)
  
  References and Acknowledgements
  
*************** References and Acknowledgements
*** 854,914 ****
     supports several other languages aside from C, it now stands for the
     GNU Compiler Collection.
  
!    A list of [10]successful builds is updated as new information becomes
     available.
  
     The GCC developers would like to thank the numerous people that have
     contributed new features, improvements, bug fixes, and other changes as
!    well as test results to GCC. This [11]amazing group of volunteers is
     what makes GCC successful.
  
!    For additional information about GCC please refer to the [12]GCC
!    project web site or contact the [13]GCC development mailing list.
  
!    To obtain GCC please use [14]our mirror sites or [15]our SVN server.
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [16]GCC manuals. If that fails, the
!     [17]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [18]gcc@gcc.gnu.org. All of [19]our lists have public
      archives.
  
!    Copyright (C) [20]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [21]maintained by the GCC team. Last modified
!    2016-06-03[22].
  
  References
  
     1. http://www.gnu.org/
     2. http://gcc.gnu.org/gcc-5/changes.html
!    3. http://gcc.gnu.org/onlinedocs/5.4.0/
     4. http://gcc.gnu.org/gcc-5/changes.html
!    5. http://gcc.gnu.org/onlinedocs/5.3.0/
     6. http://gcc.gnu.org/gcc-5/changes.html
!    7. http://gcc.gnu.org/onlinedocs/5.2.0/
     8. http://gcc.gnu.org/gcc-5/changes.html
!    9. http://gcc.gnu.org/onlinedocs/5.1.0/
!   10. http://gcc.gnu.org/gcc-5/buildstat.html
!   11. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
!   12. http://gcc.gnu.org/index.html
!   13. mailto:gcc@gcc.gnu.org
!   14. http://gcc.gnu.org/mirrors.html
!   15. http://gcc.gnu.org/svn.html
!   16. https://gcc.gnu.org/onlinedocs/
!   17. mailto:gcc-help@gcc.gnu.org
!   18. mailto:gcc@gcc.gnu.org
!   19. https://gcc.gnu.org/lists.html
!   20. http://www.fsf.org/
!   21. https://gcc.gnu.org/about.html
!   22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-5/changes.html
- 
                                GCC 5 Release Series
                          Changes, New Features, and Fixes
  
--- 867,928 ----
     supports several other languages aside from C, it now stands for the
     GNU Compiler Collection.
  
!    A list of [12]successful builds is updated as new information becomes
     available.
  
     The GCC developers would like to thank the numerous people that have
     contributed new features, improvements, bug fixes, and other changes as
!    well as test results to GCC. This [13]amazing group of volunteers is
     what makes GCC successful.
  
!    For additional information about GCC please refer to the [14]GCC
!    project web site or contact the [15]GCC development mailing list.
  
!    To obtain GCC please use [16]our mirror sites or [17]our SVN server.
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [18]GCC manuals. If that fails, the
!     [19]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [20]gcc@gcc.gnu.org. All of [21]our lists have public
      archives.
  
!    Copyright (C) [22]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [23]maintained by the GCC team. Last modified
!    2018-09-30[24].
  
  References
  
     1. http://www.gnu.org/
     2. http://gcc.gnu.org/gcc-5/changes.html
!    3. http://gcc.gnu.org/onlinedocs/5.5.0/
     4. http://gcc.gnu.org/gcc-5/changes.html
!    5. http://gcc.gnu.org/onlinedocs/5.4.0/
     6. http://gcc.gnu.org/gcc-5/changes.html
!    7. http://gcc.gnu.org/onlinedocs/5.3.0/
     8. http://gcc.gnu.org/gcc-5/changes.html
!    9. http://gcc.gnu.org/onlinedocs/5.2.0/
!   10. http://gcc.gnu.org/gcc-5/changes.html
!   11. http://gcc.gnu.org/onlinedocs/5.1.0/
!   12. http://gcc.gnu.org/gcc-5/buildstat.html
!   13. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
!   14. http://gcc.gnu.org/index.html
!   15. mailto:gcc@gcc.gnu.org
!   16. http://gcc.gnu.org/mirrors.html
!   17. http://gcc.gnu.org/svn.html
!   18. https://gcc.gnu.org/onlinedocs/
!   19. mailto:gcc-help@gcc.gnu.org
!   20. mailto:gcc@gcc.gnu.org
!   21. https://gcc.gnu.org/lists.html
!   22. https://www.fsf.org/
!   23. https://gcc.gnu.org/about.html
!   24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-5/changes.html
                                GCC 5 Release Series
                          Changes, New Features, and Fixes
  
*************** libgccjit
*** 1401,1407 ****
     functions from bytecode to machine code.
  
     The library can also be used for ahead-of-time compilation, enabling
!    GCC to be plugged into a pre-existing frontend. An example of using
     this to build a compiler for an esoteric language we'll refer to as
     "brainf" can be seen [37]here.
  
--- 1415,1421 ----
     functions from bytecode to machine code.
  
     The library can also be used for ahead-of-time compilation, enabling
!    GCC to be plugged into a pre-existing front end. An example of using
     this to build a compiler for an esoteric language we'll refer to as
     "brainf" can be seen [37]here.
  
*************** Target Specific Changes
*** 1762,1768 ****
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
!                                (Pending) GCC 5.5
  
     This is the [44]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 5.5 release. This list might
--- 1776,1782 ----
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
!                                     GCC 5.5
  
     This is the [44]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 5.5 release. This list might
*************** Target Specific Changes
*** 1789,1804 ****
     provided this notice is preserved.
  
     These pages are [51]maintained by the GCC team. Last modified
!    2017-03-12[52].
  
  References
  
     1. http://gcc.gnu.org/gcc-5/changes.html#libstdcxx
     2. https://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html
     3. https://savannah.nongnu.org/bugs/?44574
!    4. https://gcc.gnu.org/wiki/Intel%20MPX%20support%20in%20the%20GCC%20compiler
!    5. http://www.openmp.org/wp-content/uploads/OpenMP4.0.0.pdf
!    6. http://www.openmp.org/wp-content/uploads/OpenMP4.0.0.Examples.pdf
     7. https://gcc.gnu.org/wiki/OpenACC
     8. https://gcc.gnu.org/install/configure.html
     9. https://www.cilkplus.org/
--- 1803,1818 ----
     provided this notice is preserved.
  
     These pages are [51]maintained by the GCC team. Last modified
!    2018-09-30[52].
  
  References
  
     1. http://gcc.gnu.org/gcc-5/changes.html#libstdcxx
     2. https://gcc.gnu.org/onlinedocs/gcc/Spec-Files.html
     3. https://savannah.nongnu.org/bugs/?44574
!    4. https://gcc.gnu.org/wiki/Intel MPX support in the GCC compiler
!    5. https://www.openmp.org/wp-content/uploads/OpenMP4.0.0.pdf
!    6. https://www.openmp.org/wp-content/uploads/OpenMP4.0.0.Examples.pdf
     7. https://gcc.gnu.org/wiki/OpenACC
     8. https://gcc.gnu.org/install/configure.html
     9. https://www.cilkplus.org/
*************** References
*** 1842,1853 ****
    47. mailto:gcc-help@gcc.gnu.org
    48. mailto:gcc@gcc.gnu.org
    49. https://gcc.gnu.org/lists.html
!   50. http://www.fsf.org/
    51. https://gcc.gnu.org/about.html
    52. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.9/index.html
- 
                               GCC 4.9 Release Series
  
     Aug 3, 2016
--- 1856,1866 ----
    47. mailto:gcc-help@gcc.gnu.org
    48. mailto:gcc@gcc.gnu.org
    49. https://gcc.gnu.org/lists.html
!   50. https://www.fsf.org/
    51. https://gcc.gnu.org/about.html
    52. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.9/index.html
                               GCC 4.9 Release Series
  
     Aug 3, 2016
*************** References and Acknowledgements
*** 1909,1915 ****
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2016-09-30[24].
  
  References
  
--- 1922,1928 ----
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2018-09-30[24].
  
  References
  
*************** References
*** 1934,1945 ****
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. http://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.9/changes.html
- 
                               GCC 4.9 Release Series
                          Changes, New Features, and Fixes
  
--- 1947,1957 ----
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. https://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.9/changes.html
                               GCC 4.9 Release Series
                          Changes, New Features, and Fixes
  
*************** New Languages and Language specific impr
*** 2053,2073 ****
         -fdiagnostics-color=never.
         Sample diagnostics output:
      $ g++ -fdiagnostics-color=always -S -Wall test.C
!     test.C: In function `int foo()':
      test.C:1:14: warning: no return statement in function returning non-void [-W
  return-type]
       int foo () { }
                    ^
      test.C:2:46: error: template instantiation depth exceeds maximum of 900 (use
!  -ftemplate-depth= to increase the maximum) instantiating `struct X<100>'
       template <int N> struct X { static const int value = X<N-1>::value; }; temp
  late struct X<1000>;
                                                    ^
!     test.C:2:46:   recursively required from `const int X<999>::value'
!     test.C:2:46:   required from `const int X<1000>::value'
      test.C:2:88:   required from here
  
!     test.C:2:46: error: incomplete type `X<100>' used in nested name specifier
  
       * With the new [7]#pragma GCC ivdep, the user can assert that there
         are no loop-carried dependencies which would prevent concurrent
--- 2065,2085 ----
         -fdiagnostics-color=never.
         Sample diagnostics output:
      $ g++ -fdiagnostics-color=always -S -Wall test.C
!     test.C: In function ‘int foo()’:
      test.C:1:14: warning: no return statement in function returning non-void [-W
  return-type]
       int foo () { }
                    ^
      test.C:2:46: error: template instantiation depth exceeds maximum of 900 (use
!  -ftemplate-depth= to increase the maximum) instantiating ‘struct X<100>’
       template <int N> struct X { static const int value = X<N-1>::value; }; temp
  late struct X<1000>;
                                                    ^
!     test.C:2:46:   recursively required from ‘const int X<999>::value’
!     test.C:2:46:   required from ‘const int X<1000>::value’
      test.C:2:88:   required from here
  
!     test.C:2:46: error: incomplete type ‘X<100>’ used in nested name specifier
  
       * With the new [7]#pragma GCC ivdep, the user can assert that there
         are no loop-carried dependencies which would prevent concurrent
*************** auto incr = [](auto x) { return x++; };
*** 2172,2182 ****
  // a functional object that will add two like-type objects
  auto add = [] <typename T> (T a, T b) { return a + b; };
  
!      * G++ supports unconstrained generic functions as specified by
!        S:4.1.2 and S:5.1.1 of [16]N3889: Concepts Lite Specification.
!        Briefly, auto may be used as a type-specifier in a parameter
!        declaration of any function declarator in order to introduce an
!        implicit function template parameter, akin to generic lambdas.
  
  // the following two function declarations are equivalent
  auto incr(auto x) { return x++; }
--- 2184,2194 ----
  // a functional object that will add two like-type objects
  auto add = [] <typename T> (T a, T b) { return a + b; };
  
!      * G++ supports unconstrained generic functions as specified by §4.1.2
!        and §5.1.1 of [16]N3889: Concepts Lite Specification. Briefly, auto
!        may be used as a type-specifier in a parameter declaration of any
!        function declarator in order to introduce an implicit function
!        template parameter, akin to generic lambdas.
  
  // the following two function declarations are equivalent
  auto incr(auto x) { return x++; }
*************** auto incr(T x) { return x++; }
*** 2266,2272 ****
         be used as argument to ISO_C_BINDING's C_LOC and as actual argument
         to another NO_ARG_CHECK dummy argument; also the other constraints
         of TYPE(*) apply. The dummy arguments should be declared as scalar
!        or assumed-size variable of type type(*) (recommended) - or of type
         integer, real, complex or logical. With NO_ARG_CHECK, a pointer to
         the data without further type or shape information is passed,
         similar to C's void*. Note that also TS 29113's
--- 2278,2284 ----
         be used as argument to ISO_C_BINDING's C_LOC and as actual argument
         to another NO_ARG_CHECK dummy argument; also the other constraints
         of TYPE(*) apply. The dummy arguments should be declared as scalar
!        or assumed-size variable of type type(*) (recommended) – or of type
         integer, real, complex or logical. With NO_ARG_CHECK, a pointer to
         the data without further type or shape information is passed,
         similar to C's void*. Note that also TS 29113's
*************** GCC 4.9.4
*** 2549,2555 ****
     provided this notice is preserved.
  
     These pages are [34]maintained by the GCC team. Last modified
!    2016-12-28[35].
  
  References
  
--- 2561,2567 ----
     provided this notice is preserved.
  
     These pages are [34]maintained by the GCC team. Last modified
!    2018-09-30[35].
  
  References
  
*************** References
*** 2585,2596 ****
    30. mailto:gcc-help@gcc.gnu.org
    31. mailto:gcc@gcc.gnu.org
    32. https://gcc.gnu.org/lists.html
!   33. http://www.fsf.org/
    34. https://gcc.gnu.org/about.html
    35. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.8/index.html
- 
                               GCC 4.8 Release Series
  
     June 23, 2015
--- 2597,2607 ----
    30. mailto:gcc-help@gcc.gnu.org
    31. mailto:gcc@gcc.gnu.org
    32. https://gcc.gnu.org/lists.html
!   33. https://www.fsf.org/
    34. https://gcc.gnu.org/about.html
    35. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.8/index.html
                               GCC 4.8 Release Series
  
     June 23, 2015
*************** References and Acknowledgements
*** 2655,2661 ****
     provided this notice is preserved.
  
     These pages are [25]maintained by the GCC team. Last modified
!    2016-09-30[26].
  
  References
  
--- 2666,2672 ----
     provided this notice is preserved.
  
     These pages are [25]maintained by the GCC team. Last modified
!    2018-09-30[26].
  
  References
  
*************** References
*** 2682,2693 ****
    21. mailto:gcc-help@gcc.gnu.org
    22. mailto:gcc@gcc.gnu.org
    23. https://gcc.gnu.org/lists.html
!   24. http://www.fsf.org/
    25. https://gcc.gnu.org/about.html
    26. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.8/changes.html
- 
                               GCC 4.8 Release Series
                          Changes, New Features, and Fixes
  
--- 2693,2703 ----
    21. mailto:gcc-help@gcc.gnu.org
    22. mailto:gcc@gcc.gnu.org
    23. https://gcc.gnu.org/lists.html
!   24. https://www.fsf.org/
    25. https://gcc.gnu.org/about.html
    26. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.8/changes.html
                               GCC 4.8 Release Series
                          Changes, New Features, and Fixes
  
*************** New Languages and Language specific impr
*** 2816,2823 ****
         diagnostics. Combined with the caret information, an example
         diagnostic showing these two features is:
  
! t.c:1:94: error: invalid operands to binary < (have `struct mystruct' and `float
! ')
   #define MYMAX(A,B)    __extension__ ({ __typeof__(A) __a = (A); __typeof__(B) _
  _b = (B); __a < __b ? __b : __a; })
  
--- 2826,2833 ----
         diagnostics. Combined with the caret information, an example
         diagnostic showing these two features is:
  
! t.c:1:94: error: invalid operands to binary < (have ‘struct mystruct’ and ‘float
! ’)
   #define MYMAX(A,B)    __extension__ ({ __typeof__(A) __a = (A); __typeof__(B) _
  _b = (B); __a < __b ? __b : __a; })
  
*************** int i = A().f();  // error, f() requires
*** 2941,2948 ****
              older versions except as noted below.
            + ABI: Some internal names (used in the assembler/object file)
              have changed for symbols declared in the specification part of
!             a module. If an affected module - or a file using it via use
!             association - is recompiled, the module and all files which
              directly use such symbols have to be recompiled as well. This
              change only affects the following kind of module symbols:
                 o Procedure pointers. Note: C-interoperable function
--- 2951,2958 ----
              older versions except as noted below.
            + ABI: Some internal names (used in the assembler/object file)
              have changed for symbols declared in the specification part of
!             a module. If an affected module – or a file using it via use
!             association – is recompiled, the module and all files which
              directly use such symbols have to be recompiled as well. This
              change only affects the following kind of module symbols:
                 o Procedure pointers. Note: C-interoperable function
*************** int i = A().f();  // error, f() requires
*** 2969,2975 ****
       * The [21]-Wcompare-reals command-line option has been added. When
         this is set, warnings are issued when comparing REAL or COMPLEX
         types for equality and inequality; consider replacing a == b by
!        abs(a-b) < eps with a suitable eps. -Wcompare-reals is enabled by
         -Wextra.
       * The [22]-Wtarget-lifetime command-line option has been added
         (enabled with -Wall), which warns if the pointer in a pointer
--- 2979,2985 ----
       * The [21]-Wcompare-reals command-line option has been added. When
         this is set, warnings are issued when comparing REAL or COMPLEX
         types for equality and inequality; consider replacing a == b by
!        abs(a−b) < eps with a suitable eps. -Wcompare-reals is enabled by
         -Wextra.
       * The [22]-Wtarget-lifetime command-line option has been added
         (enabled with -Wall), which warns if the pointer in a pointer
*************** int i = A().f();  // error, f() requires
*** 2981,2987 ****
         4.0e0).
         (For Fortran source code, consider replacing the "q" in
         floating-point literals by a kind parameter (e.g. 4.0e0_qp with a
!        suitable qp). Note that - in Fortran source code - replacing "q" by
         a simple "e" is not equivalent.)
       * The GFORTRAN_TMPDIR environment variable for specifying a
         non-default directory for files opened with STATUS="SCRATCH", is
--- 2991,2997 ----
         4.0e0).
         (For Fortran source code, consider replacing the "q" in
         floating-point literals by a kind parameter (e.g. 4.0e0_qp with a
!        suitable qp). Note that – in Fortran source code – replacing "q" by
         a simple "e" is not equivalent.)
       * The GFORTRAN_TMPDIR environment variable for specifying a
         non-default directory for files opened with STATUS="SCRATCH", is
*************** New Targets and Target Specific Improvem
*** 3076,3083 ****
      }
         The inline assembler in this example will generate code like
      mov r24, 8+7
!        provided c is allocated to R24 and val is allocated to R8...R15.
!        This works because the GNU assembler accepts plain register numbers
         without register prefix.
       * Static initializers with 3-byte symbols are supported now:
      extern const __memx char foo;
--- 3086,3093 ----
      }
         The inline assembler in this example will generate code like
      mov r24, 8+7
!        provided c is allocated to R24 and val is allocated to R8…R15. This
!        works because the GNU assembler accepts plain register numbers
         without register prefix.
       * Static initializers with 3-byte symbols are supported now:
      extern const __memx char foo;
*************** GCC 4.8.5
*** 3411,3417 ****
     provided this notice is preserved.
  
     These pages are [43]maintained by the GCC team. Last modified
!    2017-02-27[44].
  
  References
  
--- 3421,3427 ----
     provided this notice is preserved.
  
     These pages are [43]maintained by the GCC team. Last modified
!    2018-09-30[44].
  
  References
  
*************** References
*** 3440,3446 ****
    23. https://gcc.gnu.org/onlinedocs/gfortran/TMPDIR.html
    24. https://gcc.gnu.org/wiki/Fortran2003Status
    25. https://gcc.gnu.org/wiki/TS29113Status
!   26. https://gcc.gnu.org/viewcvs/trunk/libgfortran/libgfortran.h?content-type=text%2Fplain&view=co
    27. http://chasm-interop.sourceforge.net/
    28. https://gcc.gnu.org/wiki/avr-gcc#Fixed-Point_Support
    29. https://gcc.gnu.org/onlinedocs/gcc/Fixed-Point.html
--- 3450,3456 ----
    23. https://gcc.gnu.org/onlinedocs/gfortran/TMPDIR.html
    24. https://gcc.gnu.org/wiki/Fortran2003Status
    25. https://gcc.gnu.org/wiki/TS29113Status
!   26. https://gcc.gnu.org/viewcvs/trunk/libgfortran/libgfortran.h?content-type=text/plain&view=co
    27. http://chasm-interop.sourceforge.net/
    28. https://gcc.gnu.org/wiki/avr-gcc#Fixed-Point_Support
    29. https://gcc.gnu.org/onlinedocs/gcc/Fixed-Point.html
*************** References
*** 3456,3467 ****
    39. mailto:gcc-help@gcc.gnu.org
    40. mailto:gcc@gcc.gnu.org
    41. https://gcc.gnu.org/lists.html
!   42. http://www.fsf.org/
    43. https://gcc.gnu.org/about.html
    44. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.7/index.html
- 
                               GCC 4.7 Release Series
  
     June 12, 2014
--- 3466,3476 ----
    39. mailto:gcc-help@gcc.gnu.org
    40. mailto:gcc@gcc.gnu.org
    41. https://gcc.gnu.org/lists.html
!   42. https://www.fsf.org/
    43. https://gcc.gnu.org/about.html
    44. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.7/index.html
                               GCC 4.7 Release Series
  
     June 12, 2014
*************** References and Acknowledgements
*** 3523,3529 ****
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2016-09-30[24].
  
  References
  
--- 3532,3538 ----
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2018-09-30[24].
  
  References
  
*************** References
*** 3548,3559 ****
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. http://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.7/changes.html
- 
                               GCC 4.7 Release Series
                          Changes, New Features, and Fixes
  
--- 3557,3567 ----
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. https://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.7/changes.html
                               GCC 4.7 Release Series
                          Changes, New Features, and Fixes
  
*************** long double pi = 180.0_degrees;
*** 3884,3890 ****
  template <class T> using Ptr = T*;
  Ptr<int> ip;  // decltype(ip) is int*
  
!      * Thanks to Ville Voutilainen and Pedro Lamarao, G++ now implements
         [13]C++11 delegating constructors.
  
  struct A {
--- 3892,3898 ----
  template <class T> using Ptr = T*;
  Ptr<int> ip;  // decltype(ip) is int*
  
!      * Thanks to Ville Voutilainen and Pedro Lamarão, G++ now implements
         [13]C++11 delegating constructors.
  
  struct A {
*************** New Targets and Target Specific Improvem
*** 4078,4084 ****
  
       * GCC now supports the XMEGA architecture. This requires GNU binutils
         2.22 or later.
!      * Support for the [36]named address spaces __flash, __flash1, ...,
         __flash5 and __memx has been added. These address spaces locate
         read-only data in flash memory and allow reading from flash memory
         by means of ordinary C code, i.e. without the need of (inline)
--- 4086,4092 ----
  
       * GCC now supports the XMEGA architecture. This requires GNU binutils
         2.22 or later.
!      * Support for the [36]named address spaces __flash, __flash1, …,
         __flash5 and __memx has been added. These address spaces locate
         read-only data in flash memory and allow reading from flash memory
         by means of ordinary C code, i.e. without the need of (inline)
*************** void set_portb (uint8_t value)
*** 4122,4128 ****
         suitable to be used as operand in an I/O command. The address must
         be a constant integer known at compile time.
       * The inline assembler constraint "R" to represent integers in the
!        range -6 ... 5 has been removed without replacement.
       * Many optimizations to:
            + 64-bit integer arithmetic
            + Widening multiplication
--- 4130,4136 ----
         suitable to be used as operand in an I/O command. The address must
         be a constant integer known at compile time.
       * The inline assembler constraint "R" to represent integers in the
!        range −6 … 5 has been removed without replacement.
       * Many optimizations to:
            + 64-bit integer arithmetic
            + Widening multiplication
*************** void set_portb (uint8_t value)
*** 4134,4140 ****
            + If-else decision trees generated by switch instructions
            + Merging of data located in flash memory
            + New libgcc variants for devices with 8-bit wide stack pointer
!           + ...
       * Better documentation:
            + Handling of EIND and indirect jumps on devices with more than
              128 KiB of program memory.
--- 4142,4148 ----
            + If-else decision trees generated by switch instructions
            + Merging of data located in flash memory
            + New libgcc variants for devices with 8-bit wide stack pointer
!           + …
       * Better documentation:
            + Handling of EIND and indirect jumps on devices with more than
              128 KiB of program memory.
*************** GCC 4.7.1
*** 4308,4314 ****
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
!    The Go frontend in the 4.7.1 release fully supports the [46]Go 1
     language standard.
  
  GCC 4.7.2
--- 4316,4322 ----
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
!    The Go front end in the 4.7.1 release fully supports the [46]Go 1
     language standard.
  
  GCC 4.7.2
*************** GCC 4.7.4
*** 4345,4351 ****
     provided this notice is preserved.
  
     These pages are [55]maintained by the GCC team. Last modified
!    2017-03-03[56].
  
  References
  
--- 4353,4359 ----
     provided this notice is preserved.
  
     These pages are [55]maintained by the GCC team. Last modified
!    2018-09-30[56].
  
  References
  
*************** References
*** 4374,4380 ****
    23. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/Code-Gen-Options.html#index-g_t_0040code_007bfaggressive-function-elimination_007d-270
    24. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/Error-and-Warning-Options.html#index-g_t_0040code_007bWreal-q-constant_007d-149
    25. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/SELECTED_005fREAL_005fKIND.html
!   26. https://msdn.microsoft.com/en-us/library/bb787181%28v=vs.85%29.aspx
    27. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/Debugging-Options.html#index-g_t_0040code_007bfno-backtrace_007d-183
    28. https://gcc.gnu.org/wiki/Fortran2003Status
    29. https://gcc.gnu.org/wiki/OOP
--- 4382,4388 ----
    23. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/Code-Gen-Options.html#index-g_t_0040code_007bfaggressive-function-elimination_007d-270
    24. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/Error-and-Warning-Options.html#index-g_t_0040code_007bWreal-q-constant_007d-149
    25. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/SELECTED_005fREAL_005fKIND.html
!   26. https://docs.microsoft.com/en-us/windows/desktop/wer/collecting-user-mode-dumps
    27. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gfortran/Debugging-Options.html#index-g_t_0040code_007bfno-backtrace_007d-183
    28. https://gcc.gnu.org/wiki/Fortran2003Status
    29. https://gcc.gnu.org/wiki/OOP
*************** References
*** 4387,4393 ****
    36. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/Named-Address-Spaces.html
    37. http://nongnu.org/avr-libc/
    38. https://gcc.gnu.org/PR54461
!   39. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/AVR-Built%5f002din-Functions.html
    40. https://sites.google.com/site/x32abi/
    41. http://www.dwarfstd.org/ShowIssue.php?issue=100909.1
    42. http://www.dwarfstd.org/ShowIssue.php?issue=100909.2
--- 4395,4401 ----
    36. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/Named-Address-Spaces.html
    37. http://nongnu.org/avr-libc/
    38. https://gcc.gnu.org/PR54461
!   39. https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/AVR-Built_002din-Functions.html
    40. https://sites.google.com/site/x32abi/
    41. http://www.dwarfstd.org/ShowIssue.php?issue=100909.1
    42. http://www.dwarfstd.org/ShowIssue.php?issue=100909.2
*************** References
*** 4402,4413 ****
    51. mailto:gcc-help@gcc.gnu.org
    52. mailto:gcc@gcc.gnu.org
    53. https://gcc.gnu.org/lists.html
!   54. http://www.fsf.org/
    55. https://gcc.gnu.org/about.html
    56. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.6/index.html
- 
                               GCC 4.6 Release Series
  
     April 12, 2013
--- 4410,4420 ----
    51. mailto:gcc-help@gcc.gnu.org
    52. mailto:gcc@gcc.gnu.org
    53. https://gcc.gnu.org/lists.html
!   54. https://www.fsf.org/
    55. https://gcc.gnu.org/about.html
    56. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.6/index.html
                               GCC 4.6 Release Series
  
     April 12, 2013
*************** References and Acknowledgements
*** 4469,4475 ****
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2016-09-30[24].
  
  References
  
--- 4476,4482 ----
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2018-09-30[24].
  
  References
  
*************** References
*** 4494,4505 ****
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. http://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.6/changes.html
- 
                               GCC 4.6 Release Series
                          Changes, New Features, and Fixes
  
--- 4501,4511 ----
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. https://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.6/changes.html
                               GCC 4.6 Release Series
                          Changes, New Features, and Fixes
  
*************** New Languages and Language specific impr
*** 4839,4845 ****
  
       * [12]Improved experimental support for the upcoming ISO C++
         standard, C++0x, including using constexpr and nullptr.
!      * Performance improvements to the [13]Debug Mode, thanks to Franc,ois
         Dumont.
       * Atomic operations used for reference-counting are annotated so that
         they can be understood by race detectors such as Helgrind, see
--- 4845,4851 ----
  
       * [12]Improved experimental support for the upcoming ISO C++
         standard, C++0x, including using constexpr and nullptr.
!      * Performance improvements to the [13]Debug Mode, thanks to François
         Dumont.
       * Atomic operations used for reference-counting are annotated so that
         they can be understood by race detectors such as Helgrind, see
*************** New Languages and Language specific impr
*** 4894,4900 ****
              allocated (if unallocated) or reallocated (if the shape or
              type parameter is different). To avoid the small performance
              penalty, you can use a(:) = ... instead of a = ... for arrays
!             and character strings - or disable the feature using -std=f95
              or -fno-realloc-lhs.
            + Deferred type parameter: For scalar allocatable and pointer
              variables the character length can be deferred.
--- 4900,4906 ----
              allocated (if unallocated) or reallocated (if the shape or
              type parameter is different). To avoid the small performance
              penalty, you can use a(:) = ... instead of a = ... for arrays
!             and character strings – or disable the feature using -std=f95
              or -fno-realloc-lhs.
            + Deferred type parameter: For scalar allocatable and pointer
              variables the character length can be deferred.
*************** New Languages and Language specific impr
*** 4949,4955 ****
              be declared in a single PROCEDURE statement; implied-shape
              arrays are supported for named constants (PARAMETER). The
              transformational, three argument versions of BESSEL_JN and
!             BESSEL_YN were added - the elemental, two-argument version had
              been added in GCC 4.4; note that the transformational
              functions use a recurrence algorithm.
  
--- 4955,4961 ----
              be declared in a single PROCEDURE statement; implied-shape
              arrays are supported for named constants (PARAMETER). The
              transformational, three argument versions of BESSEL_JN and
!             BESSEL_YN were added – the elemental, two-argument version had
              been added in GCC 4.4; note that the transformational
              functions use a recurrence algorithm.
  
*************** GCC 4.6.4
*** 5394,5400 ****
     provided this notice is preserved.
  
     These pages are [29]maintained by the GCC team. Last modified
!    2016-11-27[30].
  
  References
  
--- 5400,5406 ----
     provided this notice is preserved.
  
     These pages are [29]maintained by the GCC team. Last modified
!    2018-09-30[30].
  
  References
  
*************** References
*** 5425,5436 ****
    25. mailto:gcc-help@gcc.gnu.org
    26. mailto:gcc@gcc.gnu.org
    27. https://gcc.gnu.org/lists.html
!   28. http://www.fsf.org/
    29. https://gcc.gnu.org/about.html
    30. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.5/index.html
- 
                               GCC 4.5 Release Series
  
     Jul 2, 2012
--- 5431,5441 ----
    25. mailto:gcc-help@gcc.gnu.org
    26. mailto:gcc@gcc.gnu.org
    27. https://gcc.gnu.org/lists.html
!   28. https://www.fsf.org/
    29. https://gcc.gnu.org/about.html
    30. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.5/index.html
                               GCC 4.5 Release Series
  
     Jul 2, 2012
*************** References and Acknowledgements
*** 5492,5498 ****
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2016-09-30[19].
  
  References
  
--- 5497,5503 ----
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2018-09-30[19].
  
  References
  
*************** References
*** 5512,5523 ****
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. http://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.5/changes.html
- 
                               GCC 4.5 Release Series
                          Changes, New Features, and Fixes
  
--- 5517,5527 ----
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. https://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.5/changes.html
                               GCC 4.5 Release Series
                          Changes, New Features, and Fixes
  
*************** General Optimizer Improvements
*** 5585,5592 ****
         file rather than in the current working directory. This allows the
         user to get debugging dumps when doing parallel builds without two
         builds of the same filename interfering with each other.
!      * GCC has been integrated with the [6]MPC library. This allows GCC to
!        evaluate complex arithmetic at compile time [7]more accurately. It
         also allows GCC to evaluate calls to complex built-in math
         functions having constant arguments and replace them at compile
         time with their mathematically equivalent results. In doing so, GCC
--- 5589,5596 ----
         file rather than in the current working directory. This allows the
         user to get debugging dumps when doing parallel builds without two
         builds of the same filename interfering with each other.
!      * GCC has been integrated with the MPC library. This allows GCC to
!        evaluate complex arithmetic at compile time [6]more accurately. It
         also allows GCC to evaluate calls to complex built-in math
         functions having constant arguments and replace them at compile
         time with their mathematically equivalent results. In doing so, GCC
*************** General Optimizer Improvements
*** 5599,5605 ****
         catanh, ccos, ccosh, cexp, clog, cpow, csin, csinh, csqrt, ctan,
         and ctanh. The float and long double variants of these functions
         (e.g. csinf and csinl) are also handled.
!      * A new link-time optimizer has been added ([8]-flto). When this
         option is used, GCC generates a bytecode representation of each
         input file and writes it to specially-named sections in each object
         file. When the object files are linked together, all the function
--- 5603,5609 ----
         catanh, ccos, ccosh, cexp, clog, cpow, csin, csinh, csqrt, ctan,
         and ctanh. The float and long double variants of these functions
         (e.g. csinf and csinl) are also handled.
!      * A new link-time optimizer has been added ([7]-flto). When this
         option is used, GCC generates a bytecode representation of each
         input file and writes it to specially-named sections in each object
         file. When the object files are linked together, all the function
*************** General Optimizer Improvements
*** 5610,5624 ****
         the generated code. To use the link-timer optimizer, -flto needs to
         be specified at compile time and during the final link. If the
         program does not require any symbols to be exported, it is possible
!        to combine -flto and the experimental [9]-fwhopr with
!        [10]-fwhole-program to allow the interprocedural optimizers to use
         more aggressive assumptions.
       * The automatic parallelization pass was enhanced to support
         parallelization of outer loops.
       * Automatic parallelization can be enabled as part of Graphite. In
         addition to -ftree-parallelize-loops=, specify
         -floop-parallelize-all to enable the Graphite-based optimization.
!      * The infrastructure for optimizing based on [11]restrict qualified
         pointers has been rewritten and should result in code generation
         improvements. Optimizations based on restrict qualified pointers
         are now also available when using -fno-strict-aliasing.
--- 5614,5628 ----
         the generated code. To use the link-timer optimizer, -flto needs to
         be specified at compile time and during the final link. If the
         program does not require any symbols to be exported, it is possible
!        to combine -flto and the experimental [8]-fwhopr with
!        [9]-fwhole-program to allow the interprocedural optimizers to use
         more aggressive assumptions.
       * The automatic parallelization pass was enhanced to support
         parallelization of outer loops.
       * Automatic parallelization can be enabled as part of Graphite. In
         addition to -ftree-parallelize-loops=, specify
         -floop-parallelize-all to enable the Graphite-based optimization.
!      * The infrastructure for optimizing based on [10]restrict qualified
         pointers has been rewritten and should result in code generation
         improvements. Optimizations based on restrict qualified pointers
         are now also available when using -fno-strict-aliasing.
*************** New Languages and Language specific impr
*** 5723,5729 ****
  
    C++
  
!      * Improved [12]experimental support for the upcoming C++0x ISO C++
         standard, including support for raw strings, lambda expressions and
         explicit type conversion operators.
       * When printing the name of a class template specialization, G++ will
--- 5727,5733 ----
  
    C++
  
!      * Improved [11]experimental support for the upcoming C++0x ISO C++
         standard, including support for raw strings, lambda expressions and
         explicit type conversion operators.
       * When printing the name of a class template specialization, G++ will
*************** New Languages and Language specific impr
*** 5751,5763 ****
       * In C++0x mode local and anonymous classes are now allowed as
         template arguments, and in declarations of variables and functions
         with linkage, so long as any such declaration that is used is also
!        defined ([13]DR 757).
       * Labels may now have attributes, as has been permitted for a while
         in C. This is only permitted when the label definition and the
!        attribute specifier is followed by a semicolon--i.e., the label
         applies to an empty statement. The only useful attribute for a
         label is unused.
!      * G++ now implements [14]DR 176. Previously G++ did not support using
         the injected-class-name of a template base class as a type name,
         and lookup of the name found the declaration of the template in the
         enclosing scope. Now lookup of the name finds the
--- 5755,5767 ----
       * In C++0x mode local and anonymous classes are now allowed as
         template arguments, and in declarations of variables and functions
         with linkage, so long as any such declaration that is used is also
!        defined ([12]DR 757).
       * Labels may now have attributes, as has been permitted for a while
         in C. This is only permitted when the label definition and the
!        attribute specifier is followed by a semicolon—i.e., the label
         applies to an empty statement. The only useful attribute for a
         label is unused.
!      * G++ now implements [13]DR 176. Previously G++ did not support using
         the injected-class-name of a template base class as a type name,
         and lookup of the name found the declaration of the template in the
         enclosing scope. Now lookup of the name finds the
*************** New Languages and Language specific impr
*** 5795,5801 ****
            + Existing facilities now exploit explicit operators and the
              newly implemented core C++0x features.
            + The header <cstdatomic> has been renamed to <atomic>.
!      * An experimental [15]profile mode has been added. This is an
         implementation of many C++ standard library constructs with an
         additional analysis layer that gives performance improvement advice
         based on recognition of suboptimal usage patterns. For example,
--- 5799,5805 ----
            + Existing facilities now exploit explicit operators and the
              newly implemented core C++0x features.
            + The header <cstdatomic> has been renamed to <atomic>.
!      * An experimental [14]profile mode has been added. This is an
         implementation of many C++ standard library constructs with an
         additional analysis layer that gives performance improvement advice
         based on recognition of suboptimal usage patterns. For example,
*************** vector-size: improvement = 3: call stack
*** 5817,5823 ****
         These constructs can be substituted for the normal libstdc++
         constructs on a piecemeal basis, or all existing components can be
         transformed via the -D_GLIBCXX_PROFILE macro.
!      * [16]Support for decimal floating-point arithmetic (aka ISO C++ TR
         24733) has been added. This support is in header file
         <decimal/decimal>, uses namespace std::decimal, and includes
         classes decimal32, decimal64, and decimal128.
--- 5821,5827 ----
         These constructs can be substituted for the normal libstdc++
         constructs on a piecemeal basis, or all existing components can be
         transformed via the -D_GLIBCXX_PROFILE macro.
!      * [15]Support for decimal floating-point arithmetic (aka ISO C++ TR
         24733) has been added. This support is in header file
         <decimal/decimal>, uses namespace std::decimal, and includes
         classes decimal32, decimal64, and decimal128.
*************** vector-size: improvement = 3: call stack
*** 5827,5833 ****
         components that simplify the internal representation and present a
         more intuitive view of components when used with
         appropriately-advanced versions of GDB. For more information,
!        please consult the more [17]detailed description.
       * The default behavior for comparing typeinfo names has changed, so
         in <typeinfo>, __GXX_MERGED_TYPEINFO_NAMES now defaults to zero.
       * The new -static-libstdc++ option directs g++ to link the C++
--- 5831,5837 ----
         components that simplify the internal representation and present a
         more intuitive view of components when used with
         appropriately-advanced versions of GDB. For more information,
!        please consult the more [16]detailed description.
       * The default behavior for comparing typeinfo names has changed, so
         in <typeinfo>, __GXX_MERGED_TYPEINFO_NAMES now defaults to zero.
       * The new -static-libstdc++ option directs g++ to link the C++
*************** vector-size: improvement = 3: call stack
*** 5836,5846 ****
  
    Fortran
  
!      * The COMMON default padding has been changed - instead of adding the
         padding before a variable it is now added afterwards, which
         increases the compatibility with other vendors and helps to obtain
         the correct output in some cases. Cf. also the -falign-commons
!        option ([18]added in 4.4).
       * The -finit-real= option now also supports the value snan for
         signaling not-a-number; to be effective, one additionally needs to
         enable trapping (e.g. via -ffpe-trap=). Note: Compile-time
--- 5840,5850 ----
  
    Fortran
  
!      * The COMMON default padding has been changed – instead of adding the
         padding before a variable it is now added afterwards, which
         increases the compatibility with other vendors and helps to obtain
         the correct output in some cases. Cf. also the -falign-commons
!        option ([17]added in 4.4).
       * The -finit-real= option now also supports the value snan for
         signaling not-a-number; to be effective, one additionally needs to
         enable trapping (e.g. via -ffpe-trap=). Note: Compile-time
*************** vector-size: improvement = 3: call stack
*** 5858,5864 ****
       * The run-time checking -fcheck=bounds now warns about invalid string
         lengths of character dummy arguments. Additionally, more
         compile-time checks have been added.
!      * The new option [19]-fno-protect-parens has been added; if set, the
         compiler may reorder REAL and COMPLEX expressions without regard to
         parentheses.
       * GNU Fortran no longer links against libgfortranbegin. As before,
--- 5862,5868 ----
       * The run-time checking -fcheck=bounds now warns about invalid string
         lengths of character dummy arguments. Additionally, more
         compile-time checks have been added.
!      * The new option [18]-fno-protect-parens has been added; if set, the
         compiler may reorder REAL and COMPLEX expressions without regard to
         parentheses.
       * GNU Fortran no longer links against libgfortranbegin. As before,
*************** vector-size: improvement = 3: call stack
*** 5866,5872 ****
         which is invoked by the main function. However, main is now
         generated and put in the same object file as MAIN__. For the time
         being, libgfortranbegin still exists for backward compatibility.
!        For details see the new [20]Mixed-Language Programming chapter in
         the manual.
       * The I/O library was restructured for performance and cleaner code.
       * Array assignments and WHERE are now run in parallel when OpenMP's
--- 5870,5876 ----
         which is invoked by the main function. However, main is now
         generated and put in the same object file as MAIN__. For the time
         being, libgfortranbegin still exists for backward compatibility.
!        For details see the new [19]Mixed-Language Programming chapter in
         the manual.
       * The I/O library was restructured for performance and cleaner code.
       * Array assignments and WHERE are now run in parallel when OpenMP's
*************** vector-size: improvement = 3: call stack
*** 5878,5884 ****
       * More Fortran 2003 and Fortran 2008 mathematical functions can now
         be used as initialization expressions.
       * Some extended attributes such as STDCALL are now supported via the
!        [21]GCC$ compiler directive.
       * For Fortran 77 compatibility: If -fno-sign-zero is used, the SIGN
         intrinsic behaves now as if zero were always positive.
       * For legacy compatibiliy: On Cygwin and MinGW, the special files
--- 5882,5888 ----
       * More Fortran 2003 and Fortran 2008 mathematical functions can now
         be used as initialization expressions.
       * Some extended attributes such as STDCALL are now supported via the
!        [20]GCC$ compiler directive.
       * For Fortran 77 compatibility: If -fno-sign-zero is used, the SIGN
         intrinsic behaves now as if zero were always positive.
       * For legacy compatibiliy: On Cygwin and MinGW, the special files
*************** vector-size: improvement = 3: call stack
*** 5904,5910 ****
              procedure pointer with PASS attribute now have to use CLASS in
              line with the Fortran 2003 standard; the workaround to use
              TYPE is no longer supported.
!           + [22]Experimental, incomplete support for polymorphism,
              including CLASS, SELECT TYPE and dynamic dispatch of
              type-bound procedure calls. Some features do not work yet such
              as unlimited polymorphism (CLASS(*)).
--- 5908,5914 ----
              procedure pointer with PASS attribute now have to use CLASS in
              line with the Fortran 2003 standard; the workaround to use
              TYPE is no longer supported.
!           + [21]Experimental, incomplete support for polymorphism,
              including CLASS, SELECT TYPE and dynamic dispatch of
              type-bound procedure calls. Some features do not work yet such
              as unlimited polymorphism (CLASS(*)).
*************** Other significant improvements
*** 6106,6119 ****
  
  GCC 4.5.1
  
!    This is the [23]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.1 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
    All languages
  
!      * GCC's new link-time optimizer ([24]-flto) now also works on a few
         non-ELF targets:
            + Cygwin (*-cygwin*)
            + MinGW (*-mingw*)
--- 6110,6123 ----
  
  GCC 4.5.1
  
!    This is the [22]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.1 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
    All languages
  
!      * GCC's new link-time optimizer ([23]-flto) now also works on a few
         non-ELF targets:
            + Cygwin (*-cygwin*)
            + MinGW (*-mingw*)
*************** GCC 4.5.1
*** 6123,6136 ****
  
  GCC 4.5.2
  
!    This is the [25]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.2 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.5.3
  
!    This is the [26]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.3 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
--- 6127,6140 ----
  
  GCC 4.5.2
  
!    This is the [24]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.2 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.5.3
  
!    This is the [25]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.3 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
*************** GCC 4.5.3
*** 6147,6211 ****
  
  GCC 4.5.4
  
!    This is the [27]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.4 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [28]GCC manuals. If that fails, the
!     [29]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [30]gcc@gcc.gnu.org. All of [31]our lists have public
      archives.
  
!    Copyright (C) [32]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [33]maintained by the GCC team. Last modified
!    2017-02-28[34].
  
  References
  
!    1. http://www.multiprecision.org/
     2. https://gcc.gnu.org/install/prerequisites.html
     3. https://gcc.gnu.org/ml/gcc/2010-01/msg00510.html
     4. http://gcc.gnu.org/gcc-4.4/changes.html#obsoleted
     5. http://gcc.gnu.org/gcc-4.5/changes.html#x86
!    6. http://www.multiprecision.org/
!    7. https://gcc.gnu.org/PR30789
!    8. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-flto-801
!    9. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-fwhopr-802
!   10. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-fwhole-program-800
!   11. https://gcc.gnu.org/onlinedocs/gcc/Restricted-Pointers.html
!   12. http://gcc.gnu.org/gcc-4.5/cxx0x_status.html
!   13. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#757
!   14. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#176
!   15. https://gcc.gnu.org/onlinedocs/libstdc++/manual/profile_mode.html
!   16. https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.tr24733
!   17. https://sourceware.org/gdb/wiki/STLSupport
!   18. http://gcc.gnu.org/gcc-4.4/changes.html
!   19. https://gcc.gnu.org/onlinedocs/gfortran/Code-Gen-Options.html
!   20. https://gcc.gnu.org/onlinedocs/gfortran/Mixed-Language-Programming.html
!   21. https://gcc.gnu.org/onlinedocs/gfortran/GNU-Fortran-Compiler-Directives.html
!   22. https://gcc.gnu.org/wiki/OOP
!   23. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.1
!   24. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-flto-801
!   25. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.2
!   26. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.3
!   27. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.4
!   28. https://gcc.gnu.org/onlinedocs/
!   29. mailto:gcc-help@gcc.gnu.org
!   30. mailto:gcc@gcc.gnu.org
!   31. https://gcc.gnu.org/lists.html
!   32. http://www.fsf.org/
!   33. https://gcc.gnu.org/about.html
!   34. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.4/index.html
- 
                               GCC 4.4 Release Series
  
     March 13, 2012
--- 6151,6213 ----
  
  GCC 4.5.4
  
!    This is the [26]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.5.4 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [27]GCC manuals. If that fails, the
!     [28]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [29]gcc@gcc.gnu.org. All of [30]our lists have public
      archives.
  
!    Copyright (C) [31]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [32]maintained by the GCC team. Last modified
!    2018-09-30[33].
  
  References
  
!    1. http://www.multiprecision.org/mpc/
     2. https://gcc.gnu.org/install/prerequisites.html
     3. https://gcc.gnu.org/ml/gcc/2010-01/msg00510.html
     4. http://gcc.gnu.org/gcc-4.4/changes.html#obsoleted
     5. http://gcc.gnu.org/gcc-4.5/changes.html#x86
!    6. https://gcc.gnu.org/PR30789
!    7. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-flto-801
!    8. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-fwhopr-802
!    9. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-fwhole-program-800
!   10. https://gcc.gnu.org/onlinedocs/gcc/Restricted-Pointers.html
!   11. http://gcc.gnu.org/gcc-4.5/cxx0x_status.html
!   12. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#757
!   13. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#176
!   14. https://gcc.gnu.org/onlinedocs/libstdc++/manual/profile_mode.html
!   15. https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.tr24733
!   16. https://sourceware.org/gdb/wiki/STLSupport
!   17. http://gcc.gnu.org/gcc-4.4/changes.html
!   18. https://gcc.gnu.org/onlinedocs/gfortran/Code-Gen-Options.html
!   19. https://gcc.gnu.org/onlinedocs/gfortran/Mixed-Language-Programming.html
!   20. https://gcc.gnu.org/onlinedocs/gfortran/GNU-Fortran-Compiler-Directives.html
!   21. https://gcc.gnu.org/wiki/OOP
!   22. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.1
!   23. https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-flto-801
!   24. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.2
!   25. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.3
!   26. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.5.4
!   27. https://gcc.gnu.org/onlinedocs/
!   28. mailto:gcc-help@gcc.gnu.org
!   29. mailto:gcc@gcc.gnu.org
!   30. https://gcc.gnu.org/lists.html
!   31. https://www.fsf.org/
!   32. https://gcc.gnu.org/about.html
!   33. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.4/index.html
                               GCC 4.4 Release Series
  
     March 13, 2012
*************** References and Acknowledgements
*** 6276,6282 ****
     provided this notice is preserved.
  
     These pages are [21]maintained by the GCC team. Last modified
!    2016-09-30[22].
  
  References
  
--- 6278,6284 ----
     provided this notice is preserved.
  
     These pages are [21]maintained by the GCC team. Last modified
!    2018-09-30[22].
  
  References
  
*************** References
*** 6299,6310 ****
    17. mailto:gcc-help@gcc.gnu.org
    18. mailto:gcc@gcc.gnu.org
    19. https://gcc.gnu.org/lists.html
!   20. http://www.fsf.org/
    21. https://gcc.gnu.org/about.html
    22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.4/changes.html
- 
                               GCC 4.4 Release Series
                          Changes, New Features, and Fixes
  
--- 6301,6311 ----
    17. mailto:gcc-help@gcc.gnu.org
    18. mailto:gcc@gcc.gnu.org
    19. https://gcc.gnu.org/lists.html
!   20. https://www.fsf.org/
    21. https://gcc.gnu.org/about.html
    22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.4/changes.html
                               GCC 4.4 Release Series
                          Changes, New Features, and Fixes
  
*************** GCC 4.4.7
*** 6907,6913 ****
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2016-12-28[24].
  
  References
  
--- 6908,6914 ----
     provided this notice is preserved.
  
     These pages are [23]maintained by the GCC team. Last modified
!    2018-09-30[24].
  
  References
  
*************** References
*** 6932,6943 ****
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. http://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.3/index.html
- 
                               GCC 4.3 Release Series
  
     Jun 27, 2011
--- 6933,6943 ----
    19. mailto:gcc-help@gcc.gnu.org
    20. mailto:gcc@gcc.gnu.org
    21. https://gcc.gnu.org/lists.html
!   22. https://www.fsf.org/
    23. https://gcc.gnu.org/about.html
    24. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.3/index.html
                               GCC 4.3 Release Series
  
     Jun 27, 2011
*************** References and Acknowledgements
*** 7005,7011 ****
     provided this notice is preserved.
  
     These pages are [20]maintained by the GCC team. Last modified
!    2016-09-30[21].
  
  References
  
--- 7005,7011 ----
     provided this notice is preserved.
  
     These pages are [20]maintained by the GCC team. Last modified
!    2018-09-30[21].
  
  References
  
*************** References
*** 7027,7038 ****
    16. mailto:gcc-help@gcc.gnu.org
    17. mailto:gcc@gcc.gnu.org
    18. https://gcc.gnu.org/lists.html
!   19. http://www.fsf.org/
    20. https://gcc.gnu.org/about.html
    21. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.3/changes.html
- 
                               GCC 4.3 Release Series
                          Changes, New Features, and Fixes
  
--- 7027,7037 ----
    16. mailto:gcc-help@gcc.gnu.org
    17. mailto:gcc@gcc.gnu.org
    18. https://gcc.gnu.org/lists.html
!   19. https://www.fsf.org/
    20. https://gcc.gnu.org/about.html
    21. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.3/changes.html
                               GCC 4.3 Release Series
                          Changes, New Features, and Fixes
  
*************** Caveats
*** 7133,7143 ****
  
  General Optimizer Improvements
  
!      * The GCC middle-end has been integrated with the [8]MPFR library.
!        This allows GCC to evaluate and replace at compile-time calls to
         built-in math functions having constant arguments with their
!        mathematically equivalent results. In making use of [9]MPFR, GCC
!        can generate correct results regardless of the math library
         implementation or floating point precision of the host platform.
         This also allows GCC to generate identical results regardless of
         whether one compiles in native or cross-compile configurations to a
--- 7132,7142 ----
  
  General Optimizer Improvements
  
!      * The GCC middle-end has been integrated with the MPFR library. This
!        allows GCC to evaluate and replace at compile-time calls to
         built-in math functions having constant arguments with their
!        mathematically equivalent results. In making use of MPFR, GCC can
!        generate correct results regardless of the math library
         implementation or floating point precision of the host platform.
         This also allows GCC to generate identical results regardless of
         whether one compiles in native or cross-compile configurations to a
*************** General Optimizer Improvements
*** 7149,7155 ****
         tan, tanh, tgamma, y0, y1 and yn. The float and long double
         variants of these functions (e.g. sinf and sinl) are also handled.
         The sqrt and cabs functions with constant arguments were already
!        optimized in prior GCC releases. Now they also use [10]MPFR.
       * A new forward propagation pass on RTL was added. The new pass
         replaces several slower transformations, resulting in compile-time
         improvements as well as better code generation in some cases.
--- 7148,7154 ----
         tan, tanh, tgamma, y0, y1 and yn. The float and long double
         variants of these functions (e.g. sinf and sinl) are also handled.
         The sqrt and cabs functions with constant arguments were already
!        optimized in prior GCC releases. Now they also use MPFR.
       * A new forward propagation pass on RTL was added. The new pass
         replaces several slower transformations, resulting in compile-time
         improvements as well as better code generation in some cases.
*************** New Languages and Language specific impr
*** 7227,7236 ****
       * The constructor and destructor function attributes now accept
         optional priority arguments which control the order in which the
         constructor and destructor functions are run.
!      * New [11]command-line options -Wtype-limits,
!        -Wold-style-declaration, -Wmissing-parameter-type, -Wempty-body,
!        -Wclobbered and -Wignored-qualifiers have been added for finer
!        control of the diverse warnings enabled by -Wextra.
       * A new function attribute alloc_size has been added to mark up
         malloc style functions. For constant sized allocations this can be
         used to find out the size of the returned pointer using the
--- 7226,7235 ----
       * The constructor and destructor function attributes now accept
         optional priority arguments which control the order in which the
         constructor and destructor functions are run.
!      * New [8]command-line options -Wtype-limits, -Wold-style-declaration,
!        -Wmissing-parameter-type, -Wempty-body, -Wclobbered and
!        -Wignored-qualifiers have been added for finer control of the
!        diverse warnings enabled by -Wextra.
       * A new function attribute alloc_size has been added to mark up
         malloc style functions. For constant sized allocations this can be
         used to find out the size of the returned pointer using the
*************** New Languages and Language specific impr
*** 7259,7265 ****
  
    C++
  
!      * [12]Experimental support for the upcoming ISO C++ standard, C++0x.
       * -Wc++0x-compat has been added and is now enabled by default for
         -Wall. It produces warnings for constructs whose meaning differs
         between ISO C++ 1998 and C++0x.
--- 7258,7264 ----
  
    C++
  
!      * [9]Experimental support for the upcoming ISO C++ standard, C++0x.
       * -Wc++0x-compat has been added and is now enabled by default for
         -Wall. It produces warnings for constructs whose meaning differs
         between ISO C++ 1998 and C++0x.
*************** New Languages and Language specific impr
*** 7279,7285 ****
  
      Runtime Library (libstdc++)
  
!      * [13]Experimental support for the upcoming ISO C++ standard, C++0x.
       * Support for TR1 mathematical special functions and regular
         expressions.
       * Default what implementations give more elaborate exception strings
--- 7278,7284 ----
  
      Runtime Library (libstdc++)
  
!      * [10]Experimental support for the upcoming ISO C++ standard, C++0x.
       * Support for TR1 mathematical special functions and regular
         expressions.
       * Default what implementations give more elaborate exception strings
*************** New Languages and Language specific impr
*** 7288,7294 ****
         includes and pre-processed bloat.
       * Variadic template implementations of items in <tuple> and
         <functional>.
!      * An experimental [14]parallel mode has been added. This is a
         parallel implementation of many C++ Standard library algorithms,
         like std::accumulate, std::for_each, std::transform, or std::sort,
         to give but four examples. These algorithms can be substituted for
--- 7287,7293 ----
         includes and pre-processed bloat.
       * Variadic template implementations of items in <tuple> and
         <functional>.
!      * An experimental [11]parallel mode has been added. This is a
         parallel implementation of many C++ Standard library algorithms,
         like std::accumulate, std::for_each, std::transform, or std::sort,
         to give but four examples. These algorithms can be substituted for
*************** New Languages and Language specific impr
*** 7319,7325 ****
       * Due to the fact that the GMP and MPFR libraries are required for
         all languages, Fortran is no longer special in this regard and is
         available by default.
!      * The [15]-fexternal-blas option has been added, which generates
         calls to BLAS routines for intrinsic matrix operations such as
         matmul rather than using the built-in algorithms.
       * Support to give a backtrace (compiler flag -fbacktrace or
--- 7318,7324 ----
       * Due to the fact that the GMP and MPFR libraries are required for
         all languages, Fortran is no longer special in this regard and is
         available by default.
!      * The [12]-fexternal-blas option has been added, which generates
         calls to BLAS routines for intrinsic matrix operations such as
         matmul rather than using the built-in algorithms.
       * Support to give a backtrace (compiler flag -fbacktrace or
*************** New Languages and Language specific impr
*** 7328,7343 ****
         run-time error occured.
       * GNU Fortran now defines __GFORTRAN__ when it runs the C
         preprocessor (CPP).
!      * The [16]-finit-local-zero, -finit-real, -finit-integer,
         -finit-character, and -finit-logical options have been added, which
         can be used to initialize local variables.
!      * The intrinsic procedures [17]GAMMA and [18]LGAMMA have been added,
         which calculate the Gamma function and its logarithm. Use EXTERNAL
         gamma if you want to use your own gamma function.
       * GNU Fortran now regards the backslash character as literal (as
!        required by the Fortran 2003 standard); using [19]-fbackslash GNU
         Fortran interprets backslashes as C-style escape characters.
!      * The [20]interpretation of binary, octal and hexadecimal (BOZ)
         literal constants has been changed. Before they were always
         interpreted as integer; now they are bit-wise transferred as
         argument of INT, REAL, DBLE and CMPLX as required by the Fortran
--- 7327,7342 ----
         run-time error occured.
       * GNU Fortran now defines __GFORTRAN__ when it runs the C
         preprocessor (CPP).
!      * The [13]-finit-local-zero, -finit-real, -finit-integer,
         -finit-character, and -finit-logical options have been added, which
         can be used to initialize local variables.
!      * The intrinsic procedures [14]GAMMA and [15]LGAMMA have been added,
         which calculate the Gamma function and its logarithm. Use EXTERNAL
         gamma if you want to use your own gamma function.
       * GNU Fortran now regards the backslash character as literal (as
!        required by the Fortran 2003 standard); using [16]-fbackslash GNU
         Fortran interprets backslashes as C-style escape characters.
!      * The [17]interpretation of binary, octal and hexadecimal (BOZ)
         literal constants has been changed. Before they were always
         interpreted as integer; now they are bit-wise transferred as
         argument of INT, REAL, DBLE and CMPLX as required by the Fortran
*************** Documentation improvements
*** 7707,7713 ****
  
       * Existing libstdc++ documentation has been edited and restructured
         into a single DocBook XML manual. The results can be viewed online
!        [21]here.
  
  Other significant improvements
  
--- 7706,7712 ----
  
       * Existing libstdc++ documentation has been edited and restructured
         into a single DocBook XML manual. The results can be viewed online
!        [18]here.
  
  Other significant improvements
  
*************** Other significant improvements
*** 7739,7745 ****
  
  GCC 4.3.1
  
!    This is the [22]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.1 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
--- 7738,7744 ----
  
  GCC 4.3.1
  
!    This is the [19]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.1 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
*************** Target Specific Changes
*** 7765,7857 ****
  
  GCC 4.3.2
  
!    This is the [23]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.2 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.3
  
!    This is the [24]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.3 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.4
  
!    This is the [25]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.4 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.5
  
!    This is the [26]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.5 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.6
  
!    This is the [27]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.6 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [28]GCC manuals. If that fails, the
!     [29]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [30]gcc@gcc.gnu.org. All of [31]our lists have public
      archives.
  
!    Copyright (C) [32]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [33]maintained by the GCC team. Last modified
!    2017-02-07[34].
  
  References
  
     1. http://gcc.gnu.org/gcc-4.3/changes.html#4.3.5
     2. https://gmplib.org/
!    3. http://www.mpfr.org/
     4. https://gcc.gnu.org/install/prerequisites.html
     5. https://gcc.gnu.org/ml/gcc-announce/2001/msg00000.html
     6. https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#Warning-Options
     7. http://gcc.gnu.org/gcc-4.3/porting_to.html
!    8. http://www.mpfr.org/
!    9. http://www.mpfr.org/
!   10. http://www.mpfr.org/
!   11. https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
!   12. http://gcc.gnu.org/gcc-4.3/cxx0x_status.html
!   13. http://gcc.gnu.org/gcc-4.3/cxx0x_status.html
!   14. https://gcc.gnu.org/onlinedocs/libstdc++/manual/parallel_mode.html
!   15. https://gcc.gnu.org/onlinedocs/gfortran/Code-Gen-Options.html#Code-Gen-Options
!   16. https://gcc.gnu.org/onlinedocs/gfortran/Code-Gen-Options.html#index-g_t_0040code_007bfinit-local-zero_007d-167
!   17. https://gcc.gnu.org/onlinedocs/gcc-4.3.0/gfortran/GAMMA.html
!   18. https://gcc.gnu.org/onlinedocs/gcc-4.3.0/gfortran/LGAMMA.html
!   19. https://gcc.gnu.org/onlinedocs/gfortran/Fortran-Dialect-Options.html
!   20. https://gcc.gnu.org/onlinedocs/gfortran/BOZ-literal-constants.html
!   21. https://gcc.gnu.org/onlinedocs/libstdc++/
!   22. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.1
!   23. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.2
!   24. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.3
!   25. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.4
!   26. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.5
!   27. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.6
!   28. https://gcc.gnu.org/onlinedocs/
!   29. mailto:gcc-help@gcc.gnu.org
!   30. mailto:gcc@gcc.gnu.org
!   31. https://gcc.gnu.org/lists.html
!   32. http://www.fsf.org/
!   33. https://gcc.gnu.org/about.html
!   34. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.2/index.html
- 
                               GCC 4.2 Release Series
  
     May 19, 2008
--- 7764,7852 ----
  
  GCC 4.3.2
  
!    This is the [20]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.2 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.3
  
!    This is the [21]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.3 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.4
  
!    This is the [22]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.4 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.5
  
!    This is the [23]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.5 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  GCC 4.3.6
  
!    This is the [24]list of problem reports (PRs) from GCC's bug tracking
     system that are known to be fixed in the 4.3.6 release. This list might
     not be complete (that is, it is possible that some PRs that have been
     fixed are not listed here).
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [25]GCC manuals. If that fails, the
!     [26]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [27]gcc@gcc.gnu.org. All of [28]our lists have public
      archives.
  
!    Copyright (C) [29]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [30]maintained by the GCC team. Last modified
!    2018-09-30[31].
  
  References
  
     1. http://gcc.gnu.org/gcc-4.3/changes.html#4.3.5
     2. https://gmplib.org/
!    3. https://www.mpfr.org/
     4. https://gcc.gnu.org/install/prerequisites.html
     5. https://gcc.gnu.org/ml/gcc-announce/2001/msg00000.html
     6. https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#Warning-Options
     7. http://gcc.gnu.org/gcc-4.3/porting_to.html
!    8. https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
!    9. http://gcc.gnu.org/gcc-4.3/cxx0x_status.html
!   10. http://gcc.gnu.org/gcc-4.3/cxx0x_status.html
!   11. https://gcc.gnu.org/onlinedocs/libstdc++/manual/parallel_mode.html
!   12. https://gcc.gnu.org/onlinedocs/gfortran/Code-Gen-Options.html#Code-Gen-Options
!   13. https://gcc.gnu.org/onlinedocs/gfortran/Code-Gen-Options.html#index-g_t_0040code_007bfinit-local-zero_007d-167
!   14. https://gcc.gnu.org/onlinedocs/gcc-4.3.0/gfortran/GAMMA.html
!   15. https://gcc.gnu.org/onlinedocs/gcc-4.3.0/gfortran/LGAMMA.html
!   16. https://gcc.gnu.org/onlinedocs/gfortran/Fortran-Dialect-Options.html
!   17. https://gcc.gnu.org/onlinedocs/gfortran/BOZ-literal-constants.html
!   18. https://gcc.gnu.org/onlinedocs/libstdc++/
!   19. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.1
!   20. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.2
!   21. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.3
!   22. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.4
!   23. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.5
!   24. https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.6
!   25. https://gcc.gnu.org/onlinedocs/
!   26. mailto:gcc-help@gcc.gnu.org
!   27. mailto:gcc@gcc.gnu.org
!   28. https://gcc.gnu.org/lists.html
!   29. https://www.fsf.org/
!   30. https://gcc.gnu.org/about.html
!   31. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.2/index.html
                               GCC 4.2 Release Series
  
     May 19, 2008
*************** References and Acknowledgements
*** 7913,7919 ****
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2016-09-30[19].
  
  References
  
--- 7908,7914 ----
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2018-09-30[19].
  
  References
  
*************** References
*** 7933,7944 ****
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. http://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.2/changes.html
- 
                               GCC 4.2 Release Series
                          Changes, New Features, and Fixes
  
--- 7928,7938 ----
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. https://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.2/changes.html
                               GCC 4.2 Release Series
                          Changes, New Features, and Fixes
  
*************** New Languages and Language specific impr
*** 8056,8062 ****
           return 0;
  
         To suppress the warning in valid cases, use { } instead.
!      * The C++ frontend now also produces strict aliasing warnings when
         -fstrict-aliasing -Wstrict-aliasing is in effect.
  
      Runtime Library (libstdc++)
--- 8050,8056 ----
           return 0;
  
         To suppress the warning in valid cases, use { } instead.
!      * The C++ front end now also produces strict aliasing warnings when
         -fstrict-aliasing -Wstrict-aliasing is in effect.
  
      Runtime Library (libstdc++)
*************** Other significant improvements
*** 8242,8248 ****
     provided this notice is preserved.
  
     These pages are [11]maintained by the GCC team. Last modified
!    2017-02-07[12].
  
  References
  
--- 8236,8242 ----
     provided this notice is preserved.
  
     These pages are [11]maintained by the GCC team. Last modified
!    2018-09-30[12].
  
  References
  
*************** References
*** 8255,8266 ****
     7. mailto:gcc-help@gcc.gnu.org
     8. mailto:gcc@gcc.gnu.org
     9. https://gcc.gnu.org/lists.html
!   10. http://www.fsf.org/
    11. https://gcc.gnu.org/about.html
    12. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.1/index.html
- 
                               GCC 4.1 Release Series
  
     February 13, 2007
--- 8249,8259 ----
     7. mailto:gcc-help@gcc.gnu.org
     8. mailto:gcc@gcc.gnu.org
     9. https://gcc.gnu.org/lists.html
!   10. https://www.fsf.org/
    11. https://gcc.gnu.org/about.html
    12. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.1/index.html
                               GCC 4.1 Release Series
  
     February 13, 2007
*************** References and Acknowledgements
*** 8316,8322 ****
     provided this notice is preserved.
  
     These pages are [16]maintained by the GCC team. Last modified
!    2016-09-30[17].
  
  References
  
--- 8309,8315 ----
     provided this notice is preserved.
  
     These pages are [16]maintained by the GCC team. Last modified
!    2018-09-30[17].
  
  References
  
*************** References
*** 8334,8345 ****
    12. mailto:gcc-help@gcc.gnu.org
    13. mailto:gcc@gcc.gnu.org
    14. https://gcc.gnu.org/lists.html
!   15. http://www.fsf.org/
    16. https://gcc.gnu.org/about.html
    17. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.1/changes.html
- 
                               GCC 4.1 Release Series
                          Changes, New Features, and Fixes
  
--- 8327,8337 ----
    12. mailto:gcc-help@gcc.gnu.org
    13. mailto:gcc@gcc.gnu.org
    14. https://gcc.gnu.org/lists.html
!   15. https://www.fsf.org/
    16. https://gcc.gnu.org/about.html
    17. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.1/changes.html
                               GCC 4.1 Release Series
                          Changes, New Features, and Fixes
  
*************** GCC 4.1.2
*** 8880,8886 ****
     provided this notice is preserved.
  
     These pages are [12]maintained by the GCC team. Last modified
!    2016-01-30[13].
  
  References
  
--- 8872,8878 ----
     provided this notice is preserved.
  
     These pages are [12]maintained by the GCC team. Last modified
!    2018-09-30[13].
  
  References
  
*************** References
*** 8894,8905 ****
     8. mailto:gcc-help@gcc.gnu.org
     9. mailto:gcc@gcc.gnu.org
    10. https://gcc.gnu.org/lists.html
!   11. http://www.fsf.org/
    12. https://gcc.gnu.org/about.html
    13. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.0/index.html
- 
                               GCC 4.0 Release Series
  
     January 31, 2007
--- 8886,8896 ----
     8. mailto:gcc-help@gcc.gnu.org
     9. mailto:gcc@gcc.gnu.org
    10. https://gcc.gnu.org/lists.html
!   11. https://www.fsf.org/
    12. https://gcc.gnu.org/about.html
    13. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.0/index.html
                               GCC 4.0 Release Series
  
     January 31, 2007
*************** References and Acknowledgements
*** 8961,8967 ****
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2016-09-30[19].
  
  References
  
--- 8952,8958 ----
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2018-09-30[19].
  
  References
  
*************** References
*** 8981,8992 ****
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. http://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.0/changes.html
- 
                               GCC 4.0 Release Series
                          Changes, New Features, and Fixes
  
--- 8972,8982 ----
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. https://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-4.0/changes.html
                               GCC 4.0 Release Series
                          Changes, New Features, and Fixes
  
*************** New Languages and Language specific impr
*** 9096,9102 ****
  
    C++
  
!      * When compiling without optimizations (-O0), the C++ frontend is
         much faster than in any previous versions of GCC. Independent
         testers have measured speed-ups up to 25% in real-world production
         code, compared to the 3.4 family (which was already the fastest
--- 9086,9092 ----
  
    C++
  
!      * When compiling without optimizations (-O0), the C++ front end is
         much faster than in any previous versions of GCC. Independent
         testers have measured speed-ups up to 25% in real-world production
         code, compared to the 3.4 family (which was already the fastest
*************** class N::A {
*** 9255,9261 ****
       * Many bugs have been fixed, tools and documentation improved.
       * To compile Ada from the sources, install an older working Ada
         compiler and then use --enable-languages=ada at configuration time,
!        since the Ada frontend is not currently activated by default. See
         the [10]Installing GCC for details.
  
  New Targets and Target Specific Improvements
--- 9245,9251 ----
       * Many bugs have been fixed, tools and documentation improved.
       * To compile Ada from the sources, install an older working Ada
         compiler and then use --enable-languages=ada at configuration time,
!        since the Ada front end is not currently activated by default. See
         the [10]Installing GCC for details.
  
  New Targets and Target Specific Improvements
*************** GCC 4.0.4
*** 9488,9499 ****
     provided this notice is preserved.
  
     These pages are [21]maintained by the GCC team. Last modified
!    2017-03-29[22].
  
  References
  
     1. http://gcc.gnu.org/gcc-4.0/changes.html#4.0.4
!    2. http://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
     3. http://gcc.gnu.org/projects/tree-ssa/
     4. http://gcc.gnu.org/projects/tree-ssa/vectorization.html
     5. http://gcc.gnu.org/news/sms.html
--- 9478,9489 ----
     provided this notice is preserved.
  
     These pages are [21]maintained by the GCC team. Last modified
!    2018-09-30[22].
  
  References
  
     1. http://gcc.gnu.org/gcc-4.0/changes.html#4.0.4
!    2. https://www.cl.cam.ac.uk/~mgk25/ucs/quotes.html
     3. http://gcc.gnu.org/projects/tree-ssa/
     4. http://gcc.gnu.org/projects/tree-ssa/vectorization.html
     5. http://gcc.gnu.org/news/sms.html
*************** References
*** 9511,9522 ****
    17. mailto:gcc-help@gcc.gnu.org
    18. mailto:gcc@gcc.gnu.org
    19. https://gcc.gnu.org/lists.html
!   20. http://www.fsf.org/
    21. https://gcc.gnu.org/about.html
    22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.4/index.html
- 
                               GCC 3.4 Release Series
  
     May 26, 2006
--- 9501,9511 ----
    17. mailto:gcc-help@gcc.gnu.org
    18. mailto:gcc@gcc.gnu.org
    19. https://gcc.gnu.org/lists.html
!   20. https://www.fsf.org/
    21. https://gcc.gnu.org/about.html
    22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.4/index.html
                               GCC 3.4 Release Series
  
     May 26, 2006
*************** References and Acknowledgements
*** 9589,9595 ****
     provided this notice is preserved.
  
     These pages are [22]maintained by the GCC team. Last modified
!    2016-09-30[23].
  
  References
  
--- 9578,9584 ----
     provided this notice is preserved.
  
     These pages are [22]maintained by the GCC team. Last modified
!    2018-09-30[23].
  
  References
  
*************** References
*** 9613,9631 ****
    18. mailto:gcc-help@gcc.gnu.org
    19. mailto:gcc@gcc.gnu.org
    20. https://gcc.gnu.org/lists.html
!   21. http://www.fsf.org/
    22. https://gcc.gnu.org/about.html
    23. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.4/changes.html
- 
                               GCC 3.4 Release Series
                          Changes, New Features, and Fixes
  
     The final release in the 3.4 release series is [1]GCC 3.4.6. The series
     is now closed.
  
!    GCC 3.4 has [2]many improvements in the C++ frontend. Before reporting
     a bug, please make sure it's really GCC, and not your code, that is
     broken.
  
--- 9602,9619 ----
    18. mailto:gcc-help@gcc.gnu.org
    19. mailto:gcc@gcc.gnu.org
    20. https://gcc.gnu.org/lists.html
!   21. https://www.fsf.org/
    22. https://gcc.gnu.org/about.html
    23. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.4/changes.html
                               GCC 3.4 Release Series
                          Changes, New Features, and Fixes
  
     The final release in the 3.4 release series is [1]GCC 3.4.6. The series
     is now closed.
  
!    GCC 3.4 has [2]many improvements in the C++ front end. Before reporting
     a bug, please make sure it's really GCC, and not your code, that is
     broken.
  
*************** GCC 3.4.6
*** 11378,11384 ****
     provided this notice is preserved.
  
     These pages are [416]maintained by the GCC team. Last modified
!    2016-12-30[417].
  
  References
  
--- 11366,11372 ----
     provided this notice is preserved.
  
     These pages are [416]maintained by the GCC team. Last modified
!    2018-09-30[417].
  
  References
  
*************** References
*** 11388,11397 ****
     4. http://gcc.gnu.org/gcc-3.4/changes.html#obsolete_systems
     5. http://gcc.gnu.org/gcc-3.4/mips-abi.html
     6. http://gcc.gnu.org/gcc-3.4/sparc-abi.html
!    7. http://www.boost.org/
     8. https://gcc.gnu.org/PR11953
     9. https://gcc.gnu.org/PR8361
!   10. https://gcc.gnu.org/onlinedocs/gcc-3.4.3/gcc/Other-Builtins.html#Other%20Builtins
    11. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#209
    12. http://gcc.gnu.org/bugs/#cxx_rvalbind
    13. https://gcc.gnu.org/onlinedocs/gcc-3.4.3/gcc/Objective-C-Dialect-Options.html
--- 11376,11385 ----
     4. http://gcc.gnu.org/gcc-3.4/changes.html#obsolete_systems
     5. http://gcc.gnu.org/gcc-3.4/mips-abi.html
     6. http://gcc.gnu.org/gcc-3.4/sparc-abi.html
!    7. https://www.boost.org/
     8. https://gcc.gnu.org/PR11953
     9. https://gcc.gnu.org/PR8361
!   10. https://gcc.gnu.org/onlinedocs/gcc-3.4.3/gcc/Other-Builtins.html#Other Builtins
    11. http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_closed.html#209
    12. http://gcc.gnu.org/bugs/#cxx_rvalbind
    13. https://gcc.gnu.org/onlinedocs/gcc-3.4.3/gcc/Objective-C-Dialect-Options.html
*************** References
*** 11407,11413 ****
    23. http://gcc.gnu.org/gcc-3.4/mips-abi.html
    24. http://gcc.gnu.org/gcc-3.4/powerpc-abi.html
    25. http://gcc.gnu.org/gcc-3.4/sparc-abi.html
!   26. https://gcc.gnu.org/bugzilla/buglist.cgi?short_desc_type=notregexp&short_desc=%5C%5B3%5C.4.*%5BRr%5Degression&target_milestone=3.4.0&bug_status=RESOLVED&resolution=FIXED
    27. https://gcc.gnu.org/PR10129
    28. https://gcc.gnu.org/PR14576
    29. https://gcc.gnu.org/PR14760
--- 11395,11401 ----
    23. http://gcc.gnu.org/gcc-3.4/mips-abi.html
    24. http://gcc.gnu.org/gcc-3.4/powerpc-abi.html
    25. http://gcc.gnu.org/gcc-3.4/sparc-abi.html
!   26. https://gcc.gnu.org/bugzilla/buglist.cgi?short_desc_type=notregexp&short_desc=\[3\.4.*[Rr]egression&target_milestone=3.4.0&bug_status=RESOLVED&resolution=FIXED
    27. https://gcc.gnu.org/PR10129
    28. https://gcc.gnu.org/PR14576
    29. https://gcc.gnu.org/PR14760
*************** References
*** 11796,11807 ****
   412. mailto:gcc-help@gcc.gnu.org
   413. mailto:gcc@gcc.gnu.org
   414. https://gcc.gnu.org/lists.html
!  415. http://www.fsf.org/
   416. https://gcc.gnu.org/about.html
   417. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.3/index.html
- 
                               GCC 3.3 Release Series
  
     May 03, 2005
--- 11784,11794 ----
   412. mailto:gcc-help@gcc.gnu.org
   413. mailto:gcc@gcc.gnu.org
   414. https://gcc.gnu.org/lists.html
!  415. https://www.fsf.org/
   416. https://gcc.gnu.org/about.html
   417. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.3/index.html
                               GCC 3.3 Release Series
  
     May 03, 2005
*************** References and Acknowledgements
*** 11875,11881 ****
     provided this notice is preserved.
  
     These pages are [21]maintained by the GCC team. Last modified
!    2016-09-30[22].
  
  References
  
--- 11862,11868 ----
     provided this notice is preserved.
  
     These pages are [21]maintained by the GCC team. Last modified
!    2018-09-30[22].
  
  References
  
*************** References
*** 11898,11909 ****
    17. mailto:gcc-help@gcc.gnu.org
    18. mailto:gcc@gcc.gnu.org
    19. https://gcc.gnu.org/lists.html
!   20. http://www.fsf.org/
    21. https://gcc.gnu.org/about.html
    22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.3/changes.html
- 
                               GCC 3.3 Release Series
                          Changes, New Features, and Fixes
  
--- 11885,11895 ----
    17. mailto:gcc-help@gcc.gnu.org
    18. mailto:gcc@gcc.gnu.org
    19. https://gcc.gnu.org/lists.html
!   20. https://www.fsf.org/
    21. https://gcc.gnu.org/about.html
    22. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.3/changes.html
                               GCC 3.3 Release Series
                          Changes, New Features, and Fixes
  
*************** GCC 3.3.6
*** 13251,13257 ****
     provided this notice is preserved.
  
     These pages are [556]maintained by the GCC team. Last modified
!    2016-01-30[557].
  
  References
  
--- 13237,13243 ----
     provided this notice is preserved.
  
     These pages are [556]maintained by the GCC team. Last modified
!    2018-09-30[557].
  
  References
  
*************** References
*** 13809,13820 ****
   552. mailto:gcc-help@gcc.gnu.org
   553. mailto:gcc@gcc.gnu.org
   554. https://gcc.gnu.org/lists.html
!  555. http://www.fsf.org/
   556. https://gcc.gnu.org/about.html
   557. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.2/index.html
- 
                               GCC 3.2 Release Series
  
     April 25, 2003
--- 13795,13805 ----
   552. mailto:gcc-help@gcc.gnu.org
   553. mailto:gcc@gcc.gnu.org
   554. https://gcc.gnu.org/lists.html
!  555. https://www.fsf.org/
   556. https://gcc.gnu.org/about.html
   557. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.2/index.html
                               GCC 3.2 Release Series
  
     April 25, 2003
*************** References and Acknowledgements
*** 13882,13888 ****
     provided this notice is preserved.
  
     These pages are [17]maintained by the GCC team. Last modified
!    2016-09-30[18].
  
  References
  
--- 13867,13873 ----
     provided this notice is preserved.
  
     These pages are [17]maintained by the GCC team. Last modified
!    2018-09-30[18].
  
  References
  
*************** References
*** 13901,13912 ****
    13. mailto:gcc-help@gcc.gnu.org
    14. mailto:gcc@gcc.gnu.org
    15. https://gcc.gnu.org/lists.html
!   16. http://www.fsf.org/
    17. https://gcc.gnu.org/about.html
    18. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.2/changes.html
- 
                               GCC 3.2 Release Series
                          Changes, New Features, and Fixes
  
--- 13886,13896 ----
    13. mailto:gcc-help@gcc.gnu.org
    14. mailto:gcc@gcc.gnu.org
    15. https://gcc.gnu.org/lists.html
!   16. https://www.fsf.org/
    17. https://gcc.gnu.org/about.html
    18. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.2/changes.html
                               GCC 3.2 Release Series
                          Changes, New Features, and Fixes
  
*************** GCC 3.2
*** 14506,14512 ****
     provided this notice is preserved.
  
     These pages are [251]maintained by the GCC team. Last modified
!    2016-01-30[252].
  
  References
  
--- 14490,14496 ----
     provided this notice is preserved.
  
     These pages are [251]maintained by the GCC team. Last modified
!    2018-09-30[252].
  
  References
  
*************** References
*** 14759,14770 ****
   247. mailto:gcc-help@gcc.gnu.org
   248. mailto:gcc@gcc.gnu.org
   249. https://gcc.gnu.org/lists.html
!  250. http://www.fsf.org/
   251. https://gcc.gnu.org/about.html
   252. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.1/index.html
- 
                                      GCC 3.1
  
     July 27, 2002
--- 14743,14753 ----
   247. mailto:gcc-help@gcc.gnu.org
   248. mailto:gcc@gcc.gnu.org
   249. https://gcc.gnu.org/lists.html
!  250. https://www.fsf.org/
   251. https://gcc.gnu.org/about.html
   252. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.1/index.html
                                      GCC 3.1
  
     July 27, 2002
*************** http://gcc.gnu.org/gcc-3.1/index.html
*** 14812,14818 ****
     provided this notice is preserved.
  
     These pages are [14]maintained by the GCC team. Last modified
!    2016-09-30[15].
  
  References
  
--- 14795,14801 ----
     provided this notice is preserved.
  
     These pages are [14]maintained by the GCC team. Last modified
!    2018-09-30[15].
  
  References
  
*************** References
*** 14828,14839 ****
    10. mailto:gcc-help@gcc.gnu.org
    11. mailto:gcc@gcc.gnu.org
    12. https://gcc.gnu.org/lists.html
!   13. http://www.fsf.org/
    14. https://gcc.gnu.org/about.html
    15. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.1/changes.html
- 
                               GCC 3.1 Release Series
                          Changes, New Features, and Fixes
  
--- 14811,14821 ----
    10. mailto:gcc-help@gcc.gnu.org
    11. mailto:gcc@gcc.gnu.org
    12. https://gcc.gnu.org/lists.html
!   13. https://www.fsf.org/
    14. https://gcc.gnu.org/about.html
    15. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.1/changes.html
                               GCC 3.1 Release Series
                          Changes, New Features, and Fixes
  
*************** New Languages and Language specific impr
*** 15014,15029 ****
  
    Ada
  
!    [7]Ada Core Technologies, Inc, has contributed its GNAT Ada 95 front
!    end and associated tools. The GNAT compiler fully implements the Ada
!    language as defined by the ISO/IEC 8652 standard.
  
     Please note that the integration of the Ada front end is still work in
     progress.
  
  New Targets and Target Specific Improvements
  
!      * Hans-Peter Nilsson has contributed a port to [8]MMIX, the CPU
         architecture used in new editions of Donald E. Knuth's The Art of
         Computer Programming.
       * Axis Communications has contributed its port to the CRIS CPU
--- 14996,15011 ----
  
    Ada
  
!    [7]AdaCore, has contributed its GNAT Ada 95 front end and associated
!    tools. The GNAT compiler fully implements the Ada language as defined
!    by the ISO/IEC 8652 standard.
  
     Please note that the integration of the Ada front end is still work in
     progress.
  
  New Targets and Target Specific Improvements
  
!      * Hans-Peter Nilsson has contributed a port to MMIX, the CPU
         architecture used in new editions of Donald E. Knuth's The Art of
         Computer Programming.
       * Axis Communications has contributed its port to the CRIS CPU
*************** New Targets and Target Specific Improvem
*** 15051,15057 ****
            + For those targets that support it, -mfpmath=sse will cause the
              compiler to generate SSE/SSE2 instructions for floating point
              math instead of x87 instructions. Usually, this will lead to
!             quicker code -- especially on the Pentium 4. Note that only
              scalar floating point instructions are used and GCC does not
              exploit SIMD features yet.
            + Prefetch support has been added to the Pentium III, Pentium 4,
--- 15033,15039 ----
            + For those targets that support it, -mfpmath=sse will cause the
              compiler to generate SSE/SSE2 instructions for floating point
              math instead of x87 instructions. Usually, this will lead to
!             quicker code — especially on the Pentium 4. Note that only
              scalar floating point instructions are used and GCC does not
              exploit SIMD features yet.
            + Prefetch support has been added to the Pentium III, Pentium 4,
*************** Documentation improvements
*** 15156,15173 ****
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [9]GCC manuals. If that fails, the
!     [10]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [11]gcc@gcc.gnu.org. All of [12]our lists have public
      archives.
  
!    Copyright (C) [13]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [14]maintained by the GCC team. Last modified
!    2017-01-29[15].
  
  References
  
--- 15138,15155 ----
  
  
      For questions related to the use of GCC, please consult these web
!     pages and the [8]GCC manuals. If that fails, the
!     [9]gcc-help@gcc.gnu.org mailing list might help. Comments on these
      web pages and the development of GCC are welcome on our developer
!     list at [10]gcc@gcc.gnu.org. All of [11]our lists have public
      archives.
  
!    Copyright (C) [12]Free Software Foundation, Inc. Verbatim copying and
     distribution of this entire article is permitted in any medium,
     provided this notice is preserved.
  
!    These pages are [13]maintained by the GCC team. Last modified
!    2018-09-30[14].
  
  References
  
*************** References
*** 15177,15194 ****
     4. http://gcc.gnu.org/c99status.html
     5. https://gcc.gnu.org/onlinedocs/libstdc++/faq.html
     6. https://gcc.gnu.org/onlinedocs/gcc-3.1.1/g77/News.html
!    7. http://www.adacore.com/
!    8. http://www-cs-faculty.stanford.edu/~uno/mmix.html
!    9. https://gcc.gnu.org/onlinedocs/
!   10. mailto:gcc-help@gcc.gnu.org
!   11. mailto:gcc@gcc.gnu.org
!   12. https://gcc.gnu.org/lists.html
!   13. http://www.fsf.org/
!   14. https://gcc.gnu.org/about.html
!   15. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.0/index.html
- 
                                     GCC 3.0.4
  
     February 20, 2002
--- 15159,15174 ----
     4. http://gcc.gnu.org/c99status.html
     5. https://gcc.gnu.org/onlinedocs/libstdc++/faq.html
     6. https://gcc.gnu.org/onlinedocs/gcc-3.1.1/g77/News.html
!    7. https://www.adacore.com/
!    8. https://gcc.gnu.org/onlinedocs/
!    9. mailto:gcc-help@gcc.gnu.org
!   10. mailto:gcc@gcc.gnu.org
!   11. https://gcc.gnu.org/lists.html
!   12. https://www.fsf.org/
!   13. https://gcc.gnu.org/about.html
!   14. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.0/index.html
                                     GCC 3.0.4
  
     February 20, 2002
*************** Previous 3.0.x Releases
*** 15243,15249 ****
     provided this notice is preserved.
  
     These pages are [14]maintained by the GCC team. Last modified
!    2016-09-30[15].
  
  References
  
--- 15223,15229 ----
     provided this notice is preserved.
  
     These pages are [14]maintained by the GCC team. Last modified
!    2018-09-30[15].
  
  References
  
*************** References
*** 15259,15270 ****
    10. mailto:gcc-help@gcc.gnu.org
    11. mailto:gcc@gcc.gnu.org
    12. https://gcc.gnu.org/lists.html
!   13. http://www.fsf.org/
    14. https://gcc.gnu.org/about.html
    15. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.0/features.html
- 
                                GCC 3.0 New Features
  
  Additional changes in GCC 3.0.4
--- 15239,15249 ----
    10. mailto:gcc-help@gcc.gnu.org
    11. mailto:gcc@gcc.gnu.org
    12. https://gcc.gnu.org/lists.html
!   13. https://www.fsf.org/
    14. https://gcc.gnu.org/about.html
    15. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.0/features.html
                                GCC 3.0 New Features
  
  Additional changes in GCC 3.0.4
*************** Other significant improvements
*** 15435,15441 ****
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2016-08-23[19].
  
  References
  
--- 15414,15420 ----
     provided this notice is preserved.
  
     These pages are [18]maintained by the GCC team. Last modified
!    2018-09-30[19].
  
  References
  
*************** References
*** 15455,15466 ****
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. http://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.0/caveats.html
- 
                                  GCC 3.0 Caveats
  
       * -fstrict-aliasing is now part of -O2 and higher optimization
--- 15434,15444 ----
    14. mailto:gcc-help@gcc.gnu.org
    15. mailto:gcc@gcc.gnu.org
    16. https://gcc.gnu.org/lists.html
!   17. https://www.fsf.org/
    18. https://gcc.gnu.org/about.html
    19. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-3.0/caveats.html
                                  GCC 3.0 Caveats
  
       * -fstrict-aliasing is now part of -O2 and higher optimization
*************** http://gcc.gnu.org/gcc-3.0/caveats.html
*** 15507,15513 ****
     provided this notice is preserved.
  
     These pages are [7]maintained by the GCC team. Last modified
!    2016-01-30[8].
  
  References
  
--- 15485,15491 ----
     provided this notice is preserved.
  
     These pages are [7]maintained by the GCC team. Last modified
!    2018-09-30[8].
  
  References
  
*************** References
*** 15516,15527 ****
     3. mailto:gcc-help@gcc.gnu.org
     4. mailto:gcc@gcc.gnu.org
     5. https://gcc.gnu.org/lists.html
!    6. http://www.fsf.org/
     7. https://gcc.gnu.org/about.html
     8. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-2.95/index.html
- 
                                      GCC 2.95
  
     March 16, 2001: The GNU project and the GCC developers are pleased to
--- 15494,15504 ----
     3. mailto:gcc-help@gcc.gnu.org
     4. mailto:gcc@gcc.gnu.org
     5. https://gcc.gnu.org/lists.html
!    6. https://www.fsf.org/
     7. https://gcc.gnu.org/about.html
     8. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-2.95/index.html
                                      GCC 2.95
  
     March 16, 2001: The GNU project and the GCC developers are pleased to
*************** References and Acknowledgements
*** 15590,15596 ****
     provided this notice is preserved.
  
     These pages are [15]maintained by the GCC team. Last modified
!    2016-09-30[16].
  
  References
  
--- 15567,15573 ----
     provided this notice is preserved.
  
     These pages are [15]maintained by the GCC team. Last modified
!    2018-09-30[16].
  
  References
  
*************** References
*** 15607,15618 ****
    11. mailto:gcc-help@gcc.gnu.org
    12. mailto:gcc@gcc.gnu.org
    13. https://gcc.gnu.org/lists.html
!   14. http://www.fsf.org/
    15. https://gcc.gnu.org/about.html
    16. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-2.95/features.html
- 
                               GCC 2.95 New Features
  
       * General Optimizer Improvements:
--- 15584,15594 ----
    11. mailto:gcc-help@gcc.gnu.org
    12. mailto:gcc@gcc.gnu.org
    13. https://gcc.gnu.org/lists.html
!   14. https://www.fsf.org/
    15. https://gcc.gnu.org/about.html
    16. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-2.95/features.html
                               GCC 2.95 New Features
  
       * General Optimizer Improvements:
*************** Additional Changes in GCC 2.95.3
*** 15856,15862 ****
     provided this notice is preserved.
  
     These pages are [22]maintained by the GCC team. Last modified
!    2016-12-29[23].
  
  References
  
--- 15832,15838 ----
     provided this notice is preserved.
  
     These pages are [22]maintained by the GCC team. Last modified
!    2018-09-30[23].
  
  References
  
*************** References
*** 15880,15891 ****
    18. mailto:gcc-help@gcc.gnu.org
    19. mailto:gcc@gcc.gnu.org
    20. https://gcc.gnu.org/lists.html
!   21. http://www.fsf.org/
    22. https://gcc.gnu.org/about.html
    23. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-2.95/caveats.html
- 
                                  GCC 2.95 Caveats
  
       * GCC 2.95 will issue an error for invalid asm statements that had
--- 15856,15866 ----
    18. mailto:gcc-help@gcc.gnu.org
    19. mailto:gcc@gcc.gnu.org
    20. https://gcc.gnu.org/lists.html
!   21. https://www.fsf.org/
    22. https://gcc.gnu.org/about.html
    23. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/gcc-2.95/caveats.html
                                  GCC 2.95 Caveats
  
       * GCC 2.95 will issue an error for invalid asm statements that had
*************** http://gcc.gnu.org/gcc-2.95/caveats.html
*** 15940,15946 ****
     provided this notice is preserved.
  
     These pages are [7]maintained by the GCC team. Last modified
!    2016-01-30[8].
  
  References
  
--- 15915,15921 ----
     provided this notice is preserved.
  
     These pages are [7]maintained by the GCC team. Last modified
!    2018-09-30[8].
  
  References
  
*************** References
*** 15949,15960 ****
     3. mailto:gcc-help@gcc.gnu.org
     4. mailto:gcc@gcc.gnu.org
     5. https://gcc.gnu.org/lists.html
!    6. http://www.fsf.org/
     7. https://gcc.gnu.org/about.html
     8. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.1/index.html
- 
                                      EGCS 1.1
  
     September 3, 1998: We are pleased to announce the release of EGCS 1.1.
--- 15924,15934 ----
     3. mailto:gcc-help@gcc.gnu.org
     4. mailto:gcc@gcc.gnu.org
     5. https://gcc.gnu.org/lists.html
!    6. https://www.fsf.org/
     7. https://gcc.gnu.org/about.html
     8. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.1/index.html
                                      EGCS 1.1
  
     September 3, 1998: We are pleased to announce the release of EGCS 1.1.
*************** http://gcc.gnu.org/egcs-1.1/index.html
*** 16162,16168 ****
     provided this notice is preserved.
  
     These pages are [15]maintained by the GCC team. Last modified
!    2016-01-30[16].
  
  References
  
--- 16136,16142 ----
     provided this notice is preserved.
  
     These pages are [15]maintained by the GCC team. Last modified
!    2018-09-30[16].
  
  References
  
*************** References
*** 16179,16190 ****
    11. mailto:gcc-help@gcc.gnu.org
    12. mailto:gcc@gcc.gnu.org
    13. https://gcc.gnu.org/lists.html
!   14. http://www.fsf.org/
    15. https://gcc.gnu.org/about.html
    16. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.1/features.html
- 
                               EGCS 1.1 new features
  
       * Integrated GNU Fortran (g77) compiler and runtime library with
--- 16153,16163 ----
    11. mailto:gcc-help@gcc.gnu.org
    12. mailto:gcc@gcc.gnu.org
    13. https://gcc.gnu.org/lists.html
!   14. https://www.fsf.org/
    15. https://gcc.gnu.org/about.html
    16. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.1/features.html
                               EGCS 1.1 new features
  
       * Integrated GNU Fortran (g77) compiler and runtime library with
*************** http://gcc.gnu.org/egcs-1.1/features.htm
*** 16262,16268 ****
     provided this notice is preserved.
  
     These pages are [10]maintained by the GCC team. Last modified
!    2016-01-30[11].
  
  References
  
--- 16235,16241 ----
     provided this notice is preserved.
  
     These pages are [10]maintained by the GCC team. Last modified
!    2018-09-30[11].
  
  References
  
*************** References
*** 16274,16285 ****
     6. mailto:gcc-help@gcc.gnu.org
     7. mailto:gcc@gcc.gnu.org
     8. https://gcc.gnu.org/lists.html
!    9. http://www.fsf.org/
    10. https://gcc.gnu.org/about.html
    11. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.1/caveats.html
- 
                                  EGCS 1.1 Caveats
  
       * EGCS has an integrated libstdc++, but does not have an integrated
--- 16247,16257 ----
     6. mailto:gcc-help@gcc.gnu.org
     7. mailto:gcc@gcc.gnu.org
     8. https://gcc.gnu.org/lists.html
!    9. https://www.fsf.org/
    10. https://gcc.gnu.org/about.html
    11. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.1/caveats.html
                                  EGCS 1.1 Caveats
  
       * EGCS has an integrated libstdc++, but does not have an integrated
*************** http://gcc.gnu.org/egcs-1.1/caveats.html
*** 16317,16323 ****
     provided this notice is preserved.
  
     These pages are [6]maintained by the GCC team. Last modified
!    2016-01-30[7].
  
  References
  
--- 16289,16295 ----
     provided this notice is preserved.
  
     These pages are [6]maintained by the GCC team. Last modified
!    2018-09-30[7].
  
  References
  
*************** References
*** 16325,16336 ****
     2. mailto:gcc-help@gcc.gnu.org
     3. mailto:gcc@gcc.gnu.org
     4. https://gcc.gnu.org/lists.html
!    5. http://www.fsf.org/
     6. https://gcc.gnu.org/about.html
     7. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.0/index.html
- 
                                      EGCS 1.0
  
     December 3, 1997: We are pleased to announce the release of EGCS 1.0.
--- 16297,16307 ----
     2. mailto:gcc-help@gcc.gnu.org
     3. mailto:gcc@gcc.gnu.org
     4. https://gcc.gnu.org/lists.html
!    5. https://www.fsf.org/
     6. https://gcc.gnu.org/about.html
     7. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.0/index.html
                                      EGCS 1.0
  
     December 3, 1997: We are pleased to announce the release of EGCS 1.0.
*************** http://gcc.gnu.org/egcs-1.0/index.html
*** 16514,16520 ****
     provided this notice is preserved.
  
     These pages are [10]maintained by the GCC team. Last modified
!    2016-01-30[11].
  
  References
  
--- 16485,16491 ----
     provided this notice is preserved.
  
     These pages are [10]maintained by the GCC team. Last modified
!    2018-09-30[11].
  
  References
  
*************** References
*** 16526,16537 ****
     6. mailto:gcc-help@gcc.gnu.org
     7. mailto:gcc@gcc.gnu.org
     8. https://gcc.gnu.org/lists.html
!    9. http://www.fsf.org/
    10. https://gcc.gnu.org/about.html
    11. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.0/features.html
- 
                                 EGCS 1.0 features
  
       * Core compiler is based on the gcc2 development tree from Aug 2,
--- 16497,16507 ----
     6. mailto:gcc-help@gcc.gnu.org
     7. mailto:gcc@gcc.gnu.org
     8. https://gcc.gnu.org/lists.html
!    9. https://www.fsf.org/
    10. https://gcc.gnu.org/about.html
    11. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.0/features.html
                                 EGCS 1.0 features
  
       * Core compiler is based on the gcc2 development tree from Aug 2,
*************** http://gcc.gnu.org/egcs-1.0/features.htm
*** 16581,16587 ****
     provided this notice is preserved.
  
     These pages are [8]maintained by the GCC team. Last modified
!    2016-01-30[9].
  
  References
  
--- 16551,16557 ----
     provided this notice is preserved.
  
     These pages are [8]maintained by the GCC team. Last modified
!    2018-09-30[9].
  
  References
  
*************** References
*** 16591,16602 ****
     4. mailto:gcc-help@gcc.gnu.org
     5. mailto:gcc@gcc.gnu.org
     6. https://gcc.gnu.org/lists.html
!    7. http://www.fsf.org/
     8. https://gcc.gnu.org/about.html
     9. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.0/caveats.html
- 
                                  EGCS 1.0 Caveats
  
       * EGCS has an integrated libstdc++, but does not have an integrated
--- 16561,16571 ----
     4. mailto:gcc-help@gcc.gnu.org
     5. mailto:gcc@gcc.gnu.org
     6. https://gcc.gnu.org/lists.html
!    7. https://www.fsf.org/
     8. https://gcc.gnu.org/about.html
     9. http://validator.w3.org/check/referer
  ======================================================================
  http://gcc.gnu.org/egcs-1.0/caveats.html
                                  EGCS 1.0 Caveats
  
       * EGCS has an integrated libstdc++, but does not have an integrated
*************** http://gcc.gnu.org/egcs-1.0/caveats.html
*** 16635,16641 ****
     provided this notice is preserved.
  
     These pages are [6]maintained by the GCC team. Last modified
!    2016-01-30[7].
  
  References
  
--- 16604,16610 ----
     provided this notice is preserved.
  
     These pages are [6]maintained by the GCC team. Last modified
!    2018-09-30[7].
  
  References
  
*************** References
*** 16643,16649 ****
     2. mailto:gcc-help@gcc.gnu.org
     3. mailto:gcc@gcc.gnu.org
     4. https://gcc.gnu.org/lists.html
!    5. http://www.fsf.org/
     6. https://gcc.gnu.org/about.html
     7. http://validator.w3.org/check/referer
  ======================================================================
--- 16612,16618 ----
     2. mailto:gcc-help@gcc.gnu.org
     3. mailto:gcc@gcc.gnu.org
     4. https://gcc.gnu.org/lists.html
!    5. https://www.fsf.org/
     6. https://gcc.gnu.org/about.html
     7. http://validator.w3.org/check/referer
  ======================================================================
diff -Nrcpad gcc-6.4.0/boehm-gc/ChangeLog gcc-6.5.0/boehm-gc/ChangeLog
*** gcc-6.4.0/boehm-gc/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/boehm-gc/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/config/ChangeLog gcc-6.5.0/config/ChangeLog
*** gcc-6.4.0/config/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/config/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/contrib/ChangeLog gcc-6.5.0/contrib/ChangeLog
*** gcc-6.4.0/contrib/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/contrib/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,11 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2017-10-02  Thomas Schwinge  <thomas@codesourcery.com>
+ 
+ 	* gcc_update (files_and_dependencies): Handle libbacktrace.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/contrib/gcc_update gcc-6.5.0/contrib/gcc_update
*** gcc-6.4.0/contrib/gcc_update	Thu Feb  5 13:55:25 2015
--- gcc-6.5.0/contrib/gcc_update	Mon Oct  2 11:58:32 2017
*************** liboffloadmic/configure: liboffloadmic/c
*** 173,178 ****
--- 173,182 ----
  liboffloadmic/plugin/aclocal.m4: liboffloadmic/plugin/configure.ac
  liboffloadmic/plugin/Makefile.in: liboffloadmic/plugin/Makefile.am
  liboffloadmic/plugin/configure: liboffloadmic/plugin/configure.ac
+ libbacktrace/aclocal.m4: libbacktrace/configure.ac
+ libbacktrace/Makefile.in: libbacktrace/Makefile.am libbacktrace/aclocal.m4
+ libbacktrace/configure: libbacktrace/configure.ac libbacktrace/aclocal.m4
+ libbacktrace/config.h.in: libbacktrace/configure.ac libbacktrace/aclocal.m4
  # Top level
  Makefile.in: Makefile.tpl Makefile.def
  configure: configure.ac config/acx.m4
diff -Nrcpad gcc-6.4.0/contrib/header-tools/ChangeLog gcc-6.5.0/contrib/header-tools/ChangeLog
*** gcc-6.4.0/contrib/header-tools/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/contrib/header-tools/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/contrib/reghunt/ChangeLog gcc-6.5.0/contrib/reghunt/ChangeLog
*** gcc-6.4.0/contrib/reghunt/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/contrib/reghunt/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/contrib/regression/ChangeLog gcc-6.5.0/contrib/regression/ChangeLog
*** gcc-6.4.0/contrib/regression/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/contrib/regression/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/fixincludes/ChangeLog gcc-6.5.0/fixincludes/ChangeLog
*** gcc-6.4.0/fixincludes/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/fixincludes/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,18 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2017-11-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2017-02-25  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	PR target/68739
+ 	* inclhack.def (hpux11_pthread_pointer): New fix.
+ 	(hpux11_pthread_const): Adjust to remove void * cast from define.
+ 	* fixincl.x: Regenerate.
+ 	* tests/base/sys/pthread.h [HPUX11_PTHREAD_CONST_CHECK]: Update tests.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/fixincludes/fixincl.x gcc-6.5.0/fixincludes/fixincl.x
*** gcc-6.4.0/fixincludes/fixincl.x	Mon Jan 30 16:01:11 2017
--- gcc-6.5.0/fixincludes/fixincl.x	Sat Nov 11 15:53:18 2017
***************
*** 2,12 ****
   * 
   * DO NOT EDIT THIS FILE   (fixincl.x)
   * 
!  * It has been AutoGen-ed  January  5, 2017 at 06:03:22 PM by AutoGen 5.16.2
   * From the definitions    inclhack.def
   * and the template file   fixincl
   */
! /* DO NOT SVN-MERGE THIS FILE, EITHER Thu Jan  5 18:03:22 CET 2017
   *
   * You must regenerate it.  Use the ./genfixes script.
   *
--- 2,12 ----
   * 
   * DO NOT EDIT THIS FILE   (fixincl.x)
   * 
!  * It has been AutoGen-ed  Saturday November 11, 2017 at 10:44:14 AM EST
   * From the definitions    inclhack.def
   * and the template file   fixincl
   */
! /* DO NOT SVN-MERGE THIS FILE, EITHER Sat 11 Nov 2017 10:44:14 EST
   *
   * You must regenerate it.  Use the ./genfixes script.
   *
***************
*** 15,21 ****
   * certain ANSI-incompatible system header files which are fixed to work
   * correctly with ANSI C and placed in a directory that GNU C will search.
   *
!  * This file contains 240 fixup descriptions.
   *
   * See README for more information.
   *
--- 15,21 ----
   * certain ANSI-incompatible system header files which are fixed to work
   * correctly with ANSI C and placed in a directory that GNU C will search.
   *
!  * This file contains 241 fixup descriptions.
   *
   * See README for more information.
   *
*************** static const char* apzHpux11_FabsfPatch[
*** 4326,4331 ****
--- 4326,4368 ----
  
  /* * * * * * * * * * * * * * * * * * * * * * * * * *
   *
+  *  Description of Hpux11_Pthread_Pointer fix
+  */
+ tSCC zHpux11_Pthread_PointerName[] =
+      "hpux11_pthread_pointer";
+ 
+ /*
+  *  File name selection pattern
+  */
+ tSCC zHpux11_Pthread_PointerList[] =
+   "sys/pthread.h\0";
+ /*
+  *  Machine/OS name selection pattern
+  */
+ tSCC* apzHpux11_Pthread_PointerMachs[] = {
+         "*-hp-hpux11.[0-3]*",
+         (const char*)NULL };
+ 
+ /*
+  *  content selection pattern - do fix if pattern found
+  */
+ tSCC zHpux11_Pthread_PointerSelect0[] =
+        "(void[ \t]*\\*)(m|c|rw)(_ptr)";
+ 
+ #define    HPUX11_PTHREAD_POINTER_TEST_CT  1
+ static tTestDesc aHpux11_Pthread_PointerTests[] = {
+   { TT_EGREP,    zHpux11_Pthread_PointerSelect0, (regex_t*)NULL }, };
+ 
+ /*
+  *  Fix Command Arguments for Hpux11_Pthread_Pointer
+  */
+ static const char* apzHpux11_Pthread_PointerPatch[] = {
+     "format",
+     "long\t%2%3",
+     (char*)NULL };
+ 
+ /* * * * * * * * * * * * * * * * * * * * * * * * * *
+  *
   *  Description of Hpux11_Pthread_Const fix
   */
  tSCC zHpux11_Pthread_ConstName[] =
*************** tSCC* apzHpux11_Pthread_ConstMachs[] = {
*** 4347,4353 ****
   *  content selection pattern - do fix if pattern found
   */
  tSCC zHpux11_Pthread_ConstSelect0[] =
!        "^#define[ \t]*__POINTER_SET[ \t]*\\(\\(void \\*\\) 1LL\\)";
  
  #define    HPUX11_PTHREAD_CONST_TEST_CT  1
  static tTestDesc aHpux11_Pthread_ConstTests[] = {
--- 4384,4390 ----
   *  content selection pattern - do fix if pattern found
   */
  tSCC zHpux11_Pthread_ConstSelect0[] =
!        "^(#define[ \t]+__POINTER_SET[ \t0,]*)(.*\\))";
  
  #define    HPUX11_PTHREAD_CONST_TEST_CT  1
  static tTestDesc aHpux11_Pthread_ConstTests[] = {
*************** static tTestDesc aHpux11_Pthread_ConstTe
*** 4358,4364 ****
   */
  static const char* apzHpux11_Pthread_ConstPatch[] = {
      "format",
!     "#define __POINTER_SET\t\t((void *) 1L)",
      (char*)NULL };
  
  /* * * * * * * * * * * * * * * * * * * * * * * * * *
--- 4395,4401 ----
   */
  static const char* apzHpux11_Pthread_ConstPatch[] = {
      "format",
!     "%11",
      (char*)NULL };
  
  /* * * * * * * * * * * * * * * * * * * * * * * * * *
*************** static const char* apzX11_SprintfPatch[]
*** 9818,9826 ****
   *
   *  List of all fixes
   */
! #define REGEX_COUNT          276
  #define MACH_LIST_SIZE_LIMIT 187
! #define FIX_COUNT            240
  
  /*
   *  Enumerate the fixes
--- 9855,9863 ----
   *
   *  List of all fixes
   */
! #define REGEX_COUNT          277
  #define MACH_LIST_SIZE_LIMIT 187
! #define FIX_COUNT            241
  
  /*
   *  Enumerate the fixes
*************** typedef enum {
*** 9926,9931 ****
--- 9963,9969 ----
      HPUX11_EXTERN_SENDFILE_FIXIDX,
      HPUX11_EXTERN_SENDPATH_FIXIDX,
      HPUX11_FABSF_FIXIDX,
+     HPUX11_PTHREAD_POINTER_FIXIDX,
      HPUX11_PTHREAD_CONST_FIXIDX,
      HPUX11_SIZE_T_FIXIDX,
      HPUX11_SNPRINTF_FIXIDX,
*************** tFixDesc fixDescList[ FIX_COUNT ] = {
*** 10569,10574 ****
--- 10607,10617 ----
       HPUX11_FABSF_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
       aHpux11_FabsfTests,   apzHpux11_FabsfPatch, 0 },
  
+   {  zHpux11_Pthread_PointerName,    zHpux11_Pthread_PointerList,
+      apzHpux11_Pthread_PointerMachs,
+      HPUX11_PTHREAD_POINTER_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
+      aHpux11_Pthread_PointerTests,   apzHpux11_Pthread_PointerPatch, 0 },
+ 
    {  zHpux11_Pthread_ConstName,    zHpux11_Pthread_ConstList,
       apzHpux11_Pthread_ConstMachs,
       HPUX11_PTHREAD_CONST_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
diff -Nrcpad gcc-6.4.0/fixincludes/inclhack.def gcc-6.5.0/fixincludes/inclhack.def
*** gcc-6.4.0/fixincludes/inclhack.def	Mon Jan 30 16:01:11 2017
--- gcc-6.5.0/fixincludes/inclhack.def	Sat Nov 11 15:53:18 2017
*************** fix = {
*** 2251,2266 ****
  };
  
  /*
!  *  Fix C99 constant in __POINTER_SET define.
   */
  fix = {
      hackname  = hpux11_pthread_const;
      mach      = "*-hp-hpux11.[0-3]*";
      files     = sys/pthread.h;
!     select    = "^#define[ \t]*__POINTER_SET[ \t]*\\(\\(void \\*\\) 1LL\\)";
  
      c_fix     = format;
!     c_fix_arg = "#define __POINTER_SET\t\t((void *) 1L)";
      test_text = "#define __POINTER_SET\t\t((void *) 1LL)";
  };
  
--- 2251,2284 ----
  };
  
  /*
!  *  The definitions for PTHREAD_MUTEX_INITIALIZER and similar initializers
!  *  in pthread.h need to be constant expressions to be standard complient.
!  *  As a result, we need to remove the void * casts in the initializers
!  *  (see hpux11_pthread_const) and to change the __(M|C|RW)POINTER defines
!  *  to use the long type.
!  */
! fix = {
!     hackname  = hpux11_pthread_pointer;
!     mach      = "*-hp-hpux11.[0-3]*";
!     files     = sys/pthread.h;
!     select    = "(void[ \t]*\\*)(m|c|rw)(_ptr)";
! 
!     c_fix     = format;
!     c_fix_arg = "long\t%2%3";
!     test_text = "#define __MPOINTER\t\tvoid\t *m_ptr";
! };
! 
! /*
!  *  Remove void pointer cast and fix C99 constant in __POINTER_SET defines.
   */
  fix = {
      hackname  = hpux11_pthread_const;
      mach      = "*-hp-hpux11.[0-3]*";
      files     = sys/pthread.h;
!     select    = "^(#define[ \t]+__POINTER_SET[ \t0,]*)(.*\\))";
  
      c_fix     = format;
!     c_fix_arg = "%11";
      test_text = "#define __POINTER_SET\t\t((void *) 1LL)";
  };
  
diff -Nrcpad gcc-6.4.0/fixincludes/tests/base/sys/pthread.h gcc-6.5.0/fixincludes/tests/base/sys/pthread.h
*** gcc-6.4.0/fixincludes/tests/base/sys/pthread.h	Sat Mar 28 17:27:22 2015
--- gcc-6.5.0/fixincludes/tests/base/sys/pthread.h	Sat Nov 11 15:53:18 2017
***************
*** 14,21 ****
  #endif  /* HPUX11_LWP_RWLOCK_VALID_CHECK */
  
  
  #if defined( HPUX11_PTHREAD_CONST_CHECK )
! #define __POINTER_SET		((void *) 1L)
  #endif  /* HPUX11_PTHREAD_CONST_CHECK */
  
  
--- 14,26 ----
  #endif  /* HPUX11_LWP_RWLOCK_VALID_CHECK */
  
  
+ #if defined( HPUX11_PTHREAD_POINTER_CHECK )
+ #define __MPOINTER		long	m_ptr
+ #endif  /* HPUX11_PTHREAD_POINTER_CHECK */
+ 
+ 
  #if defined( HPUX11_PTHREAD_CONST_CHECK )
! #define __POINTER_SET		1
  #endif  /* HPUX11_PTHREAD_CONST_CHECK */
  
  
diff -Nrcpad gcc-6.4.0/gcc/BASE-VER gcc-6.5.0/gcc/BASE-VER
*** gcc-6.4.0/gcc/BASE-VER	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/BASE-VER	Fri Oct 26 09:54:34 2018
***************
*** 1 ****
! 6.4.0
--- 1 ----
! 6.5.0
diff -Nrcpad gcc-6.4.0/gcc/ChangeLog gcc-6.5.0/gcc/ChangeLog
*** gcc-6.4.0/gcc/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,2508 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-17  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	PR middle-end/87623
+ 	* fold-const.c (fold_truth_andor_1): If the right side is not constant,
+ 	bail out if both sides do not have the same storage order.
+ 
+ 2018-10-15  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-08-23  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/87024
+ 	* tree-inline.c (copy_bb): Drop unused __builtin_va_arg_pack_len
+ 	calls.
+ 
+ 	2018-08-17  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/86505
+ 	* tree-inline.c (copy_bb): When inlining __builtin_va_arg_pack_len ()
+ 	across a va-arg-pack using call adjust its return value accordingly.
+ 
+ 2018-10-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-10-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/87550
+ 	* config/i386/i386.c (bdesc_args): Move IX86_BUILTIN_RDPMC
+ 	from here to ...
+ 	(bdesc_special_args): ... here.
+ 
+ 	2018-09-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/87248
+ 	* fold-const.c (fold_ternary_loc) <case COND_EXPR>: Verify also that
+ 	BIT_AND_EXPR's second operand is a power of two.  Formatting fix.
+ 
+ 	2018-08-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/87065
+ 	* combine.c (simplify_if_then_else): Formatting fix.
+ 	(if_then_else_cond): Guard MULT optimization with SCALAR_INT_MODE_P
+ 	check.
+ 	(known_cond): Don't return const_true_rtx for vector modes.  Use
+ 	CONST0_RTX instead of const0_rtx.  Formatting fixes.
+ 
+ 	2018-07-24  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/86627
+ 	* expmed.c (expand_divmod): Punt if d == HOST_WIDE_INT_MIN
+ 	and size > HOST_BITS_PER_WIDE_INT.  For size > HOST_BITS_PER_WIDE_INT
+ 	and abs_d == d, do the power of two handling if profitable.
+ 
+ 	2018-07-17  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/86542
+ 	* omp-low.c (create_task_copyfn): Copy over also fields corresponding
+ 	to _looptemp_ clauses, other than the first two.
+ 
+ 	PR middle-end/86539
+ 	* gimplify.c (gimplify_omp_for): Ensure taskloop firstprivatized init
+ 	and cond temporaries don't have reference type if iterator has
+ 	pointer type.  For init use &for_pre_body instead of pre_p if
+ 	for_pre_body is non-empty.
+ 
+ 	2018-07-26  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/86660
+ 	* omp-low.c (scan_sharing_clauses): Don't ignore map clauses for
+ 	declare target to variables if they have always,{to,from,tofrom} map
+ 	kinds.
+ 
+ 2018-10-12  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR c++/54278
+ 	Backport from mainline
+ 	2017-03-23  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/80032
+ 	* gimplify.c (gimple_push_cleanup): Forced unconditional
+ 	cleanups still have to go to the conditional_cleanups
+ 	sequence.
+ 
+ 	2017-03-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/80032
+ 	* gimplify.c (gimple_push_cleanup): Add force_uncond parameter,
+ 	if set force the cleanup to happen unconditionally.
+ 	(gimplify_target_expr): Push inserted clobbers with force_uncond
+ 	to avoid them being removed by control-dependent DCE.
+ 
+ 2018-10-12  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-10-08  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/87517
+ 	* config/i386/avx512fintrin.h (_mm512_mask_fmaddsub_round_pd):
+ 	Defined with __builtin_ia32_vfmaddsubpd512_mask.
+ 
+ 2018-10-12  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-10-05  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/87522
+ 	* config/i386/gnu-user.h (ASM_SPEC): Don't pass -msse2avx to
+ 	assembler for -mavx.
+ 	* config/i386/gnu-user64.h (ASM_SPEC): Likewise.
+ 
+ 2018-09-19  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.md (atomic_storeqi): Restore deleted expander.
+ 	(atomic_storehi): Likewise.
+ 	(atomic_storesi): Likewise.
+ 	(atomic_loaddi): Restore compare and swap exchange loop code.
+ 
+ 2018-09-04  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	Backport from mainline
+ 	2018-09-04  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	* config/xtensa/xtensa.c (xtensa_expand_atomic): Reorder AND and
+ 	XOR operations in NAND case.
+ 
+ 2018-09-03  Tom de Vries  <tdevries@suse.de>
+ 
+ 	backport from trunk:
+ 	2018-06-21  Tom de Vries  <tdevries@suse.de>
+ 
+ 	PR tree-optimization/85859
+ 	* tree-ssa-tail-merge.c (stmt_local_def): Copy gimple_is_call
+ 	test with comment from bb_no_side_effects_p.
+ 
+ 2018-08-21  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-08-20  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/87014
+ 	* config/i386/i386.md (eh_return): Always update EH return
+ 	address in word_mode.
+ 
+ 2018-08-17  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-08-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.md (UNSPEC_MEMORY_BARRIER): New unspec enum.
+ 	Update comment for atomic instructions.
+ 	(atomic_storeqi, atomic_storehi, atomic_storesi, atomic_storesf,
+ 	atomic_loaddf, atomic_loaddf_1, atomic_storedf, atomic_storedf_1):
+ 	Remove.
+ 	(atomic_loaddi): Revise fence expansion to only emit fence prior to
+ 	load for __ATOMIC_SEQ_CST model.
+ 	(atomic_loaddi_1): Remove float register target.
+ 	(atomic_storedi): Handle CONST_INT values.
+ 	(atomic_storedi_1): Remove float register source.  Add special case
+ 	for zero value.
+ 	(memory_barrier): New expander and insn.
+ 
+ 2018-08-14  Matthias Klose  <doko@ubuntu.com>
+ 
+ 	Backport from mainline
+ 	2018-08-01  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR bootstrap/86724
+ 	* graphite.h: Include isl/id.h and isl/space.h to allow build
+ 	with ISL 0.20.
+ 
+ 2018-08-10  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2018-06-19  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR target/86197
+ 	* config/rs6000/rs6000.md (rs6000_discover_homogeneous_aggregate): An
+ 	ieee128 argument takes up only one (vector) register, not two (floating
+ 	point) registers.
+ 
+ 2018-07-29  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.c (pa_output_addr_vec): Align address table.
+ 	* config/pa/pa.h (JUMP_TABLES_IN_TEXT_SECTION): Revise comment.
+ 	* config/pa/pa32-linux.h (JUMP_TABLES_IN_TEXT_SECTION): Define.
+ 
+ 2018-07-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	PR target/84168
+ 	2017-09-28  Joseph Myers  <joseph@codesourcery.com>
+ 
+ 	* config/aarch64/aarch64.c (aarch64_elf_asm_constructor)
+ 	(aarch64_elf_asm_destructor): Pass SECTION_NOTYPE to get_section
+ 	when creating .init_array and .fini_array sections with priority
+ 	specified.
+ 
+ 2018-07-12  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR target/84829
+ 	* config/gnu-user.h (GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC):
+ 	Remove -mieee-fp handling.
+ 
+ 2018-07-01  David Edelsohn  <dje.gcc@gmail.com>
+ 
+ 	Backported from mainline.
+ 	2018-06-19  Tony Reix  <tony.reix@atos.com>
+ 	    Damien Bergamini  <damien.bergamini@atos.com>
+ 	    David Edelsohn  <dje.gcc@gmail.com>
+ 
+ 	* collect2.c (static_obj): New variable.
+ 	(static_libs): New variable.
+ 	(is_in_list): Uncomment declaration.
+ 	(main): Track AIX libraries linked statically.
+ 	(is_in_list): Uncomment definition.
+ 	(scan_prog_file): Don't add AIX shared libraries initializer
+ 	to constructor list if linking statically.
+ 
+ 2018-06-26  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	Backported from mainline
+ 	2018-06-20  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Change
+ 	behavior of vec_packsu (vector unsigned long long, vector unsigned
+ 	long long) to match behavior of vec_packs with same signature.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84786
+ 	* config/i386/sse.md (vshift_count): New mode attr.
+ 	(<shift_insn><mode>3<mask_name>): Use <vshift_count>N instead of vN
+ 	as last operand's constraint for VI2_AVX2_AVX512BW shifts.  Use YvN
+ 	instead of vN as last operand's constraint for VI48_AVX2 shifts.
+ 
+ 	Backported from mainline
+ 	2018-06-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/86231
+ 	* tree-vrp.c (union_ranges): For (  [  )  ] or (   )[   ] range and
+ 	anti-range don't overwrite *vr0min before using it to compute *vr0max.
+ 
+ 	2018-06-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/85878
+ 	* expr.c (expand_assignment): Only call store_expr for halves if the
+ 	mode is the same.
+ 
+ 	2018-06-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/85945
+ 	* lower-subreg.c (find_decomposable_subregs): Don't decompose float
+ 	subregs of multi-word pseudos unless the float mode has word size.
+ 
+ 	2018-05-06  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/85659
+ 	* cfgexpand.c (expand_asm_stmt): Don't create a temporary if
+ 	the type is addressable.  Don't force op into register if it has
+ 	BLKmode.
+ 
+ 	2018-04-17  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/85431
+ 	* dse.c (record_store): Ignore zero width stores.
+ 
+ 	2018-04-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/85300
+ 	* combine.c (subst): Handle subst of CONST_SCALAR_INT_P new_rtx also
+ 	into FLOAT and UNSIGNED_FLOAT like ZERO_EXTEND, return a CLOBBER if
+ 	simplify_unary_operation fails.
+ 
+ 	2018-04-07  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/85257
+ 	* fold-const.c (native_encode_vector): If not all elts could fit
+ 	and off is -1, return 0 rather than offset.
+ 	* tree-ssa-sccvn.c (vn_reference_lookup_3): Pass
+ 	(offset - offset2) / BITS_PER_UNIT as 4th argument to
+ 	native_encode_expr.  Verify len * BITS_PER_UNIT >= maxsizei.  Don't
+ 	adjust buffer in native_interpret_expr call.
+ 
+ 	2018-04-06  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/85252
+ 	* dwarf2out.c (rtl_for_decl_init): For STRING_CST initializer only
+ 	build CONST_STRING if TYPE_MAX_VALUE is non-NULL and is INTEGER_CST.
+ 
+ 	2018-04-03  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/85167
+ 	* shrink-wrap.c (move_insn_for_shrink_wrap): Don't set bb_uses and
+ 	bb_defs if *split_p, instead preinitialize it to NULL.
+ 
+ 	2018-03-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR inline-asm/85022
+ 	* emit-rtl.c (init_emit_regs): Indicate that VOIDmode MEMs don't have
+ 	known size by default.
+ 
+ 	PR inline-asm/85034
+ 	* function.c (match_asm_constraints_1): Don't optimize if input
+ 	doesn't satisfy general_operand predicate for output's mode.
+ 
+ 	PR inline-asm/85022
+ 	* alias.c (write_dependence_p): Don't require for x_canonicalized
+ 	non-VOIDmode if x has VOIDmode.
+ 
+ 	2018-03-22  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR inline-asm/84941
+ 	* function.c (match_asm_constraints_1): Don't do the optimization
+ 	if input isn't a REG, SUBREG, MEM or constant.
+ 
+ 	2018-03-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/84875
+ 	* dce.c (delete_unmarked_insns): Don't remove frame related noop moves
+ 	holding REG_CFA_RESTORE notes, instead turn them into a USE.
+ 
+ 	PR c/84953
+ 	* builtins.c (fold_builtin_strpbrk): For strpbrk(x, "") use type
+ 	instead of TREE_TYPE (s1) for the return value.
+ 
+ 	2018-03-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84899
+ 	* postreload.c (reload_combine_recognize_pattern): Perform
+ 	INTVAL addition in unsigned HOST_WIDE_INT type to avoid UB and
+ 	truncate_int_for_mode the result for the destination's mode.
+ 
+ 	2018-03-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/79085
+ 	* calls.c (expand_call): For TREE_ADDRESSABLE rettype ignore alignment
+ 	check and use address of target always.
+ 
+ 	2018-03-09  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84772
+ 	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Mark va_arg_tmp
+ 	temporary TREE_ADDRESSABLE before gimplification of BUILT_IN_MEMCPY.
+ 
+ 	PR c++/84767
+ 	* tree-inline.c (copy_tree_body_r): For INDIRECT_REF of a remapped
+ 	decl, use remap_type if we want to use the type.
+ 
+ 	2018-03-08  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/84739
+ 	* tree-tailcall.c (find_tail_calls): Check call arguments against
+ 	DECL_ARGUMENTS (current_function_decl) rather than
+ 	DECL_ARGUMENTS (func) when checking for tail recursion.
+ 
+ 	2018-03-05  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84700
+ 	* combine.c (combine_simplify_rtx): Don't try to simplify if
+ 	if_then_else_cond returned non-NULL, but either true_rtx or false_rtx
+ 	are equal to x.
+ 
+ 	2018-03-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR inline-asm/84625
+ 	* config/i386/i386.c (ix86_print_operand): Use conditional
+ 	output_operand_lossage instead of gcc_assert if CONST_VECTOR is not
+ 	zero vector.
+ 
+ 	2018-02-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR ipa/84425
+ 	* ipa-inline.c (inline_small_functions): Fix a typo.
+ 
+ 	2018-02-13  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/82210
+ 	* stor-layout.c (place_field): For variable length fields, adjust
+ 	offset_align afterwards not just based on the field's alignment,
+ 	but also on the size.
+ 
+ 	2018-02-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/83987
+ 	* omp-low.c (maybe_remove_omp_member_access_dummy_vars,
+ 	remove_member_access_dummy_vars): New functions.
+ 	(lower_omp_for, lower_omp_taskreg, lower_omp_target,
+ 	lower_omp_1, execute_lower_omp): Use them.
+ 
+ 	2018-01-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/83986
+ 	* sched-deps.c (sched_analyze_insn): For frame related insns, add anti
+ 	dependence against last_pending_memory_flush in addition to
+ 	pending_jump_insns.
+ 
+ 	2018-01-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/84040
+ 	* sched-deps.c (sched_macro_fuse_insns): Return immediately if
+ 	!insn_set.
+ 
+ 	2018-01-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/83930
+ 	* simplify-rtx.c (simplify_binary_operation_1) <case UMOD>: Use
+ 	UINTVAL (trueop1) instead of INTVAL (op1).
+ 
+ 	2018-01-09  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR preprocessor/83722
+ 	* gcc.c (try_generate_repro): Pass
+ 	&temp_stderr_files[RETRY_ICE_ATTEMPTS - 1] rather than
+ 	&temp_stdout_files[RETRY_ICE_ATTEMPTS - 1] as last argument to
+ 	do_report_bug.
+ 
+ 	2018-01-05  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/83605
+ 	* gimple-ssa-strength-reduction.c: Include tree-eh.h.
+ 	(find_candidates_dom_walker::before_dom_children): Ignore stmts that
+ 	can throw.
+ 
+ 	2017-12-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/83553
+ 	* fold-const.c (struct contains_label_data): New type.
+ 	(contains_label_1): Return non-NULL even for CASE_LABEL_EXPR, unless
+ 	inside of a SWITCH_BODY seen during the walk.
+ 	(contains_label_p): Use walk_tree instead of
+ 	walk_tree_without_duplicates, prepare data for contains_label_1 and
+ 	provide own pset.
+ 
+ 	2017-12-21  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/80747
+ 	PR rtl-optimization/83512
+ 	* cfgrtl.c (force_nonfallthru_and_redirect): When splitting
+ 	succ edge from ENTRY, copy partition from e->dest to the newly
+ 	created bb.
+ 	* bb-reorder.c (reorder_basic_blocks_simple): If last_tail is
+ 	ENTRY, use BB_PARTITION of its successor block as current_partition.
+ 	Don't copy partition when splitting succ edge from ENTRY.
+ 
+ 	PR tree-optimization/83523
+ 	* tree-ssa-math-opts.c (is_widening_mult_p): Return false if
+ 	for INTEGER_TYPE TYPE_OVERFLOW_TRAPS.
+ 	(convert_mult_to_fma): Likewise.
+ 
+ 	PR tree-optimization/83521
+ 	* tree-ssa-phiopt.c (factor_out_conditional_conversion): Use
+ 	gimple_build_assign without code on result of
+ 	fold_build1 (VIEW_CONVERT_EXPR, ...), as it might not create
+ 	a VIEW_CONVERT_EXPR.
+ 
+ 	2017-12-19  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR ipa/82801
+ 	PR ipa/83346
+ 	* ipa-inline.c (flatten_remove_node_hook): New function.
+ 	(ipa_inline): Keep only nodes with flatten attribute at the end of
+ 	the array in the order from ipa_reverse_postorder, only walk that
+ 	portion of array for flattening, if there is more than one such
+ 	node, temporarily register a removal hook and ignore removed nodes.
+ 
+ 	2017-12-08  Joseph Myers  <joseph@codesourcery.com>
+ 		    Alexander Monakov  <amonakov@ispras.ru>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/81906
+ 	* config/i386/i386.c (ix86_expand_rint): Handle flag_rounding_math.
+ 
+ 	2017-12-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/81212
+ 	* tree-cfg.c (pass_warn_function_return::execute): Handle
+ 	__builtin_ubsan_handle_missing_return like __builtin_unreachable
+ 	with BUILTINS_LOCATION.
+ 
+ 	PR target/78643
+ 	PR target/80583
+ 	* expr.c (get_inner_reference): If DECL_MODE of a non-bitfield
+ 	is BLKmode for vector field with vector raw mode, use TYPE_MODE
+ 	instead of DECL_MODE.
+ 
+ 	2017-11-29  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/80819
+ 	* config/i386/sse.md (vec_concatv2di): Remove * from (=Yr,0,*rm)
+ 	alternative.
+ 
+ 	2017-11-24  Jakub Jelinek  <jakub@redhat.com>
+  
+ 	PR sanitizer/83014
+ 	* ubsan.c (ubsan_type_descriptor): Use pp_unsigned_wide_integer
+ 	instead of pp_printf with HOST_WIDE_INT_PRINT_DEC.  Avoid calling
+ 	tree_to_uhwi twice.
+  
+ 	* tree-object-size.c (pass_through_call): Do not handle
+ 	BUILT_IN_STPNCPY_CHK which is not a pass through call.
+ 
+ 	2017-11-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/82253
+ 	* expr.c (expand_assignment): For CONCAT to_rtx, complex type from and
+ 	bitpos/bitsize covering the whole destination, use store_expr only if
+ 	the complex mode is the same.  Otherwise, use expand_normal and if
+ 	it returns CONCAT, subreg each part separately instead of trying to
+ 	subreg the whole result.
+ 
+ 	2017-11-21  James Cowgill  <James.Cowgill@imgtec.com>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82880
+ 	* config/mips/frame-header-opt.c (mips_register_frame_header_opt):
+ 	Remove static keyword from f variable.
+ 
+ 	2017-10-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/82159
+ 	* expr.c (store_field): Don't optimize away bitsize == 0 store
+ 	from CALL_EXPR with addressable return type.
+ 
+ 	2017-09-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/82159
+ 	* gimplify.c (gimplify_modify_expr): Don't optimize away zero sized
+ 	lhs from calls if the lhs has addressable type.
+ 
+ 	2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/82192
+ 	* combine.c (make_extraction): Don't look through non-paradoxical
+ 	SUBREGs or TRUNCATE if pos + len is or might be bigger than
+ 	inner's mode.
+ 
+ 2018-06-23  Richard Sandiford  <richard.sandiford@linaro.org>
+ 
+ 	PR tree-optimization/85989
+ 	* gimple-ssa-backprop.c (backprop::m_visited_phis): New member
+ 	variable.
+ 	(backprop::backprop): Initialize it.
+ 	(backprop::~backprop): Free it.
+ 	(backprop::intersect_uses): Check it when deciding whether this
+ 	is a backedge reference.
+ 	(backprop::process_block): Add each phi to m_visited_phis
+ 	after visiting it, then clear it at the end.
+ 
+ 2018-06-21  Richard Biener  <rguenther@suse.de>
+  
+ 	Backport from mainline
+ 	2017-09-06  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82108
+ 	* tree-vect-stmts.c (vectorizable_load): Fix pointer adjustment
+ 	for gap in the non-permutation SLP case.
+ 
+ 	2017-06-18  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/81410
+ 	* tree-vect-stmts.c (vectorizable_load): Properly adjust for
+ 	the gap in the ! slp_perm SLP case after each group.
+ 
+ 	2017-03-08  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/79920
+ 	* tree-vect-slp.c (vect_create_mask_and_perm): Remove and inline
+ 	with ncopies == 1 to ...
+ 	(vect_transform_slp_perm_load): ... here.  Properly compute
+ 	all element loads by iterating VF times over the group.  Do
+ 	not handle ncopies (computed in a broken way) in
+ 	vect_create_mask_and_perm.
+ 
+ 2018-06-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-02-28  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/84607
+ 	* genmatch.c (capture_info::walk_match): Do not mark
+ 	captured expressions without operands as expr_p given
+ 	they act more like predicates and should be subject to
+ 	"lost tail" side-effect preserving.
+ 
+ 	2018-05-04  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/85588
+ 	* fold-const.c (negate_expr_p): Restrict negation of operand
+ 	zero of a division to when we know that can happen without
+ 	overflow.
+ 	(fold_negate_expr_1): Likewise.
+ 
+ 2018-06-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-08-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/81884
+ 	* tree-ssa-alias.c (stmt_kills_ref_p): Handle array accesses
+ 	at struct end conservatively when comparing common bases.
+ 
+ 	2017-05-04  Richard Biener  <rguenther@suse.de>
+  
+  	* tree.c (array_at_struct_end_p): Handle arrays at struct
+ 	end with flexarrays more conservatively.  Refactor and treat
+ 	arrays of arrays or aggregates more strict.  Fix
+ 	VIEW_CONVERT_EXPR handling.
+ 
+ 	2018-04-06  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/85244
+ 	* tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
+ 	after seeing a component reference with an adjacent field.  Treat
+ 	refs to arrays at struct end of external decls similar to
+ 	refs to unconstrained commons.
+ 
+ 2018-06-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	* tree-ssa-alias.c (stmt_kills_ref_p): Revert accidentially
+ 	committed change.
+ 
+ 2018-06-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-05-02  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/85597
+ 	* tree-vect-stmts.c (vectorizable_operation): For ternary SLP
+ 	do not use split vect_get_vec_defs call but call vect_get_slp_defs
+ 	directly.
+ 
+ 2018-06-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-01-01  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/83623
+ 	* expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
+ 	check for bswap in mode rather than HImode and use that in expand_unop
+ 	too.
+ 
+ 	2017-09-26  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-09-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82264
+ 	* tree-ssa-sccvn.c (vn_phi_eq): Use safe_dyn_cast to check
+ 	for GIMPLE_CONDs.
+ 	(vn_phi_lookup): Likewise.
+ 	(vn_phi_insert): Likewise.
+ 	* is-a.h (safe_dyn_cast): New.
+ 
+ 	2017-09-25  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82285
+ 	* tree-vect-patterns.c (vect_recog_bool_pattern): Also handle
+ 	enumeral types.
+ 
+ 	2017-11-24  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82402
+ 	* tree-vect-loop-manip.c (create_lcssa_for_virtual_phi): Properly
+ 	set SSA_NAME_OCCURS_IN_ABNORMAL_PHI.
+ 
+ 	2017-10-24  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82697
+ 	* tree-ssa-phiopt.c (cond_store_replacement): Use alias-set
+ 	zero for conditional load and unconditional store.
+ 
+ 	2017-11-02  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/82765
+ 	* varasm.c (decode_addr_const): Make offset HOST_WIDE_INT.
+ 	Truncate ARRAY_REF index and element size.
+ 
+ 	2018-01-08  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/83713
+ 	* convert.c (do_narrow): Properly guard TYPE_OVERFLOW_WRAPS checks.
+ 
+ 2018-06-19  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	Backport from mainline
+ 	2018-06-19  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	* config/xtensa/xtensa.md (UNSPEC_FRAME_BLOCKAGE): New unspec
+ 	constant.
+ 	(allocate_stack, frame_blockage, *frame_blockage): New patterns.
+ 
+ 2018-06-07  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-06-06  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/63177
+ 	* /config/rs6000/rs6000.h (ASM_CPU_SPEC): Add support for -mpower9.
+ 	Don't handle -mcpu=power8 if -mpower9-vector is also used.
+ 
+ 2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>
+ 
+ 	* config/s390/s390-builtin-types.def: Add void function type.
+ 	* config/s390/s390-builtins.def: Use the function type for the
+ 	tbeginc builtin.
+ 
+ 2018-06-01  Bill Schmidt  <wschmidt@linux.ibm.com>
+ 
+ 	PR tree-optimization/85712
+ 	Backport from mainline:
+ 	2018-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>
+ 
+ 	PR tree-optimization/85712
+ 	* gimple-ssa-strength-reduction.c (struct slsr_cand_d): Add
+ 	first_interp field.
+ 	(alloc_cand_and_find_basis): Initialize first_interp field.
+ 	(slsr_process_mul): Modify first_interp field.
+ 	(slsr_process_add): Likewise.
+ 	(slsr_process_cast): Modify first_interp field for each new
+ 	interpretation.
+ 	(slsr_process_copy): Likewise.
+ 	(dump_candidate): Dump first_interp field.
+ 	(replace_mult_candidate): Process all interpretations, not just
+ 	subsequent ones.
+ 	(replace_rhs_if_not_dup): Likewise.
+ 	(replace_one_candidate): Likewise.
+ 
+ 	Backport from mainline:
+ 	2018-05-25  Bill Schmidt  <wschmidt@linux.ibm.com>
+ 
+ 	PR tree-optimization/85712
+ 	* gimple-ssa-strength-reduction.c (replace_one_candidate): Skip if
+ 	this candidate has already been replaced in-situ by a copy.
+ 
+ 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* config/i386/sse.md (cvtusi2<ssescalarmodesuffix>64<round_name>):
+ 	Add {q} suffix to insn mnemonic.
+ 
+ 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/85903
+ 	* config/i386/sse.md (movdi_to_sse): Do not generate pseudo
+ 	when memory input operand is handled.
+ 
+ 2018-05-17  Martin Jambor  <mjambor@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-05-11  Martin Jambor  <mjambor@suse.cz>
+ 
+ 	PR ipa/85655
+ 	* ipa-cp.c (intersect_with_plats): Check that the lattice contains
+ 	single const.
+ 
+ 2018-05-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/83687
+ 	* config/arm/neon.md (neon_vabd<mode>_2): Use VCVTF mode iterator.
+ 	Remove integer-related logic from pattern.
+ 	(neon_vabd<mode>_3): Likewise.
+ 
+ 2018-04-25  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-04-17  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR lto/85405
+ 	* ipa-devirt.c (odr_types_equivalent_p): Remove trailing
+ 	in message, remote space in between '_G' and '('.
+ 
+ 2018-04-25  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-04-17  Jan Hubicka  <jh@suse.cz>
+ 
+ 	PR lto/85405
+ 	* ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
+ 
+ 2018-04-23  Aaron Sawdey  <acsawdey@linux.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
+ 
+ 	PR target/83660
+ 	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
+ 	vec_extract expression as having side effects to make sure it gets
+ 	a cleanup point.
+ 
+ 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	PR middle-end/85496
+ 	* expr.c (store_field): In the bitfield case, if the value comes from
+ 	a function call and is returned in registers by means of a PARALLEL,
+ 	do not change the mode of the temporary unless BLKmode and VOIDmode.
+ 
+ 2018-04-18  Thomas Preud'homme  <thomas.preudhomme@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
+ 
+ 	PR target/85261
+ 	* config/arm/arm-builtins.c (arm_expand_builtin): Force input operand
+ 	into register.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/84574
+ 	* config/i386/i386.c (indirect_thunk_needed): Update comments.
+ 	(indirect_thunk_bnd_needed): Likewise.
+ 	(indirect_thunks_used): Likewise.
+ 	(indirect_thunks_bnd_used): Likewise.
+ 	(indirect_return_needed): New.
+ 	(indirect_return_bnd_needed): Likewise.
+ 	(output_indirect_thunk_function): Add a bool argument for
+ 	function return.
+ 	(output_indirect_thunk_function): Don't generate alias for
+ 	function return thunk.
+ 	(ix86_code_end): Call output_indirect_thunk_function to generate
+ 	function return thunks.
+ 	(ix86_output_function_return): Set indirect_return_bnd_needed
+ 	and indirect_return_needed instead of indirect_thunk_bnd_needed
+ 	and indirect_thunk_needed.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/84039
+ 	* config/i386/constraints.md (Bs): Replace
+ 	ix86_indirect_branch_register with
+ 	TARGET_INDIRECT_BRANCH_REGISTER.
+ 	(Bw): Likewise.
+ 	* config/i386/i386.md (indirect_jump): Likewise.
+ 	(tablejump): Likewise.
+ 	(*sibcall_memory): Likewise.
+ 	(*sibcall_value_memory): Likewise.
+ 	Peepholes of indirect call and jump via memory: Likewise.
+ 	(*sibcall_GOT_32): Disallowed for TARGET_INDIRECT_BRANCH_REGISTER.
+ 	(*sibcall_value_GOT_32): Likewise.
+ 	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+ 	(GOT_memory_operand): Likewise.
+ 	(call_insn_operand): Likewise.
+ 	(sibcall_insn_operand): Likewise.
+ 	(GOT32_symbol_operand): Likewise.
+ 	* config/i386/i386.h (TARGET_INDIRECT_BRANCH_REGISTER): New.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386.c (ix86_output_indirect_jmp): Update comments.
+ 
+ 	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/84530
+ 	* config/i386/i386-protos.h (ix86_output_indirect_jmp): Remove
+ 	the bool argument.
+ 	(ix86_output_indirect_function_return): New prototype.
+ 	(ix86_split_simple_return_pop_internal): Likewise.
+ 	* config/i386/i386.c (indirect_return_via_cx): New.
+ 	(indirect_return_via_cx_bnd): Likewise.
+ 	(indirect_thunk_name): Handle return va CX_REG.
+ 	(output_indirect_thunk_function): Create alias for
+ 	__x86_return_thunk_[re]cx and __x86_return_thunk_[re]cx_bnd.
+ 	(ix86_output_indirect_jmp): Remove the bool argument.
+ 	(ix86_output_indirect_function_return): New function.
+ 	(ix86_split_simple_return_pop_internal): Likewise.
+ 	* config/i386/i386.md (*indirect_jump): Don't pass false
+ 	to ix86_output_indirect_jmp.
+ 	(*tablejump_1): Likewise.
+ 	(simple_return_pop_internal): Change it to define_insn_and_split.
+ 	Call ix86_split_simple_return_pop_internal to split it for
+ 	-mfunction-return=.
+ 	(simple_return_indirect_internal): Call
+ 	ix86_output_indirect_function_return instead of
+ 	ix86_output_indirect_jmp.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-02-02  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386.c (ix86_output_function_return): Pass
+ 	INVALID_REGNUM, instead of -1, as invalid register number to
+ 	indirect_thunk_name and output_indirect_thunk.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-17  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* config/i386/i386.c (indirect_thunk_name): Declare regno
+ 	as unsigned int.  Compare regno with INVALID_REGNUM.
+ 	(output_indirect_thunk): Ditto.
+ 	(output_indirect_thunk_function): Ditto.
+ 	(ix86_code_end): Declare regno as unsigned int.  Use INVALID_REGNUM
+ 	in the call to output_indirect_thunk_function.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386.c (ix86_set_indirect_branch_type): Disallow
+ 	-mcmodel=large with -mindirect-branch=thunk,
+ 	-mindirect-branch=thunk-extern, -mfunction-return=thunk and
+ 	-mfunction-return=thunk-extern.
+ 	* doc/invoke.texi: Document -mcmodel=large is incompatible with
+ 	-mindirect-branch=thunk, -mindirect-branch=thunk-extern,
+ 	-mfunction-return=thunk and -mfunction-return=thunk-extern.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386.c (print_reg): Print the name of the full
+ 	integer register without '%'.
+ 	(ix86_print_operand): Handle 'V'.
+ 	 * doc/extend.texi: Document 'V' modifier.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/constraints.md (Bs): Disallow memory operand for
+ 	-mindirect-branch-register.
+ 	(Bw): Likewise.
+ 	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+ 	(GOT_memory_operand): Likewise.
+ 	(call_insn_operand): Likewise.
+ 	(sibcall_insn_operand): Likewise.
+ 	(GOT32_symbol_operand): Likewise.
+ 	* config/i386/i386.md (indirect_jump): Call convert_memory_address
+ 	for -mindirect-branch-register.
+ 	(tablejump): Likewise.
+ 	(*sibcall_memory): Likewise.
+ 	(*sibcall_value_memory): Likewise.
+ 	Disallow peepholes of indirect call and jump via memory for
+ 	-mindirect-branch-register.
+ 	(*call_pop): Replace m with Bw.
+ 	(*call_value_pop): Likewise.
+ 	(*sibcall_pop_memory): Replace m with Bs.
+ 	* config/i386/i386.opt (mindirect-branch-register): New option.
+ 	* doc/invoke.texi: Document -mindirect-branch-register option.
+ 
+ 	Backport from mainline
+ 	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/constraints.md (Bs): Replace
+ 	ix86_indirect_branch_thunk_register with
+ 	ix86_indirect_branch_register.
+ 	(Bw): Likewise.
+ 	* config/i386/i386.md (indirect_jump): Likewise.
+ 	(tablejump): Likewise.
+ 	(*sibcall_memory): Likewise.
+ 	(*sibcall_value_memory): Likewise.
+ 	Peepholes of indirect call and jump via memory: Likewise.
+ 	* config/i386/i386.opt: Likewise.
+ 	* config/i386/predicates.md (indirect_branch_operand): Likewise.
+ 	(GOT_memory_operand): Likewise.
+ 	(call_insn_operand): Likewise.
+ 	(sibcall_insn_operand): Likewise.
+ 	(GOT32_symbol_operand): Likewise.
+ 
+ 	Backport from mainline
+ 	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/predicates.md (constant_call_address_operand):
+ 	Rewrite ix86_indirect_branch_register logic.
+ 	(sibcall_insn_operand): Likewise.
+ 
+ 	Backport from mainline
+ 	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/constraints.md (Bs): Update
+ 	ix86_indirect_branch_register check.  Don't check
+ 	ix86_indirect_branch_register with GOT_memory_operand.
+ 	(Bw): Likewise.
+ 	* config/i386/predicates.md (GOT_memory_operand): Don't check
+ 	ix86_indirect_branch_register here.
+ 	(GOT32_symbol_operand): Likewise.
+ 
+ 	Backport from mainline
+ 	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/predicates.md (indirect_branch_operand): Rewrite
+ 	ix86_indirect_branch_register logic.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386-protos.h (ix86_output_function_return): New.
+ 	* config/i386/i386.c (ix86_set_indirect_branch_type): Also
+ 	set function_return_type.
+ 	(indirect_thunk_name): Add ret_p to indicate thunk for function
+ 	return.
+ 	(output_indirect_thunk_function): Pass false to
+ 	indirect_thunk_name.
+ 	(ix86_output_indirect_branch_via_reg): Likewise.
+ 	(ix86_output_indirect_branch_via_push): Likewise.
+ 	(output_indirect_thunk_function): Create alias for function
+ 	return thunk if regno < 0.
+ 	(ix86_output_function_return): New function.
+ 	(ix86_handle_fndecl_attribute): Handle function_return.
+ 	(ix86_attribute_table): Add function_return.
+ 	* config/i386/i386.h (machine_function): Add
+ 	function_return_type.
+ 	* config/i386/i386.md (simple_return_internal): Use
+ 	ix86_output_function_return.
+ 	(simple_return_internal_long): Likewise.
+ 	* config/i386/i386.opt (mfunction-return=): New option.
+ 	(indirect_branch): Mention -mfunction-return=.
+ 	* doc/extend.texi: Document function_return function attribute.
+ 	* doc/invoke.texi: Document -mfunction-return= option.
+ 
+ 	Backport from mainline
+ 	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/83839
+ 	* config/i386/i386.c (output_indirect_thunk_function): Use
+ 	ASM_OUTPUT_LABEL, instead of ASM_OUTPUT_DEF, for TARGET_MACHO
+ 	for  __x86.return_thunk.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386-opts.h (indirect_branch): New.
+ 	* config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise.
+ 	* config/i386/i386.c (ix86_using_red_zone): Disallow red-zone
+ 	with local indirect jump when converting indirect call and jump.
+ 	(ix86_set_indirect_branch_type): New.
+ 	(ix86_set_current_function): Call ix86_set_indirect_branch_type.
+ 	(indirectlabelno): New.
+ 	(indirect_thunk_needed): Likewise.
+ 	(indirect_thunk_bnd_needed): Likewise.
+ 	(indirect_thunks_used): Likewise.
+ 	(indirect_thunks_bnd_used): Likewise.
+ 	(INDIRECT_LABEL): Likewise.
+ 	(indirect_thunk_name): Likewise.
+ 	(output_indirect_thunk): Likewise.
+ 	(output_indirect_thunk_function): Likewise.
+ 	(ix86_output_indirect_branch_via_reg): Likewise.
+ 	(ix86_output_indirect_branch_via_push): Likewise.
+ 	(ix86_output_indirect_branch): Likewise.
+ 	(ix86_output_indirect_jmp): Likewise.
+ 	(ix86_code_end): Call output_indirect_thunk_function if needed.
+ 	(ix86_output_call_insn): Call ix86_output_indirect_branch if
+ 	needed.
+ 	(ix86_handle_fndecl_attribute): Handle indirect_branch.
+ 	(ix86_attribute_table): Add indirect_branch.
+ 	* config/i386/i386.h (machine_function): Add indirect_branch_type
+ 	and has_local_indirect_jump.
+ 	* config/i386/i386.md (indirect_jump): Set has_local_indirect_jump
+ 	to true.
+ 	(tablejump): Likewise.
+ 	(*indirect_jump): Use ix86_output_indirect_jmp.
+ 	(*tablejump_1): Likewise.
+ 	(simple_return_indirect_internal): Likewise.
+ 	* config/i386/i386.opt (mindirect-branch=): New option.
+ 	(indirect_branch): New.
+ 	(keep): Likewise.
+ 	(thunk): Likewise.
+ 	(thunk-inline): Likewise.
+ 	(thunk-extern): Likewise.
+ 	* doc/extend.texi: Document indirect_branch function attribute.
+ 	* doc/invoke.texi: Document -mindirect-branch= option.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	PR target/83905
+ 	* config/i386/i386.c (ix86_expand_prologue): Use cost reference
+ 	of struct ix86_frame.
+ 	(ix86_expand_epilogue): Likewise.  Add a local variable for
+ 	the reg_save_offset field in struct ix86_frame.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2017-11-06  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* config/i386/i386.c (ix86_can_use_return_insn_p): Use reference
+ 	of struct ix86_frame.
+ 	(ix86_initial_elimination_offset): Likewise.
+ 	(ix86_expand_split_stack_prologue): Likewise.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2017-10-13  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/82499
+ 	* config/i386/i386.h (ix86_red_zone_size): New.
+ 
+ 	2017-06-01  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+ 
+ 	* config/i386/i386.c (ix86_frame): Moved to ...
+ 	* config/i386/i386.h (ix86_frame): Here.
+ 	(machine_function): Add frame.
+ 	* config/i386/i386.c (ix86_compute_frame_layout): Repace the
+ 	frame argument with &cfun->machine->frame.
+ 	(ix86_can_use_return_insn_p): Don't pass &frame to
+ 	ix86_compute_frame_layout.  Copy frame from cfun->machine->frame.
+ 	(ix86_can_eliminate): Likewise.
+ 	(ix86_expand_prologue): Likewise.
+ 	(ix86_expand_epilogue): Likewise.
+ 	(ix86_expand_split_stack_prologue): Likewise.
+ 
+ 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	* config/s390/s390.c (s390_output_indirect_thunk_function): Check
+ 	also for flag_dwarf2_cfi_asm.
+ 
+ 2018-04-11  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* config/alpha/alpha.md (stack_probe_internal): Rename
+ 	from "probe_stack".  Update all callers.
+ 
+ 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/84748
+ 	* config/aarch64/aarch64.md (*compare_cstore<mode>_insn): Mark pattern
+ 	as clobbering CC_REGNUM.
+ 
+ 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	PR target/85196
+ 	* config/sparc/sparc.c (sparc_expand_move): Deal with symbolic operands
+ 	based on LABEL_REF.  Remove useless assertion.
+ 	(pic_address_needs_scratch): Fix formatting.
+ 	(sparc_legitimize_pic_address): Minor tweaks.
+ 	(sparc_delegitimize_address): Adjust assertion accordingly.
+ 	* config/sparc/sparc.md (movsi_pic_label_ref): Change label_ref_operand
+ 	into symbolic_operand.
+ 	(movsi_high_pic_label_ref): Likewise.
+ 	(movsi_lo_sum_pic_label_ref): Likewise.
+ 	(movdi_pic_label_ref): Likewise.
+ 	(movdi_high_pic_label_ref): Likewise.
+ 	(movdi_lo_sum_pic_label_ref): Likewise.
+ 
+ 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/85193
+ 	* config/i386/i386.md (define_attr "memory"): Handle rotate1 type.
+ 
+ 2018-04-02  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/84912
+ 	* config/rs6000/rs6000.h: Update copyright date.
+ 	(RS6000_BTM_POWERPC64): New define.
+ 	(RS6000_BTM_COMMON): Add RS6000_BTM_POWERPC64.
+ 	* config/rs6000/rs6000.c: Update copyright date.
+ 	(rs6000_builtin_mask_calculate): Add support for RS6000_BTM_POWERPC64.
+ 	(rs6000_invalid_builtin): Add handling for RS6000_BTM_POWERPC64
+ 	(rs6000_builtin_mask_names): Add RS6000_BTM_POWERPC64.
+ 	* config/rs6000/rs6000-builtin.def: Update copyright date.
+ 	(BU_P7_POWERPC64_MISC_2): New macro definition.
+ 	(DIVDE): Use it.
+ 	(DIVDEU): Likewise.
+ 
+ 	Backport from mainline
+ 	2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/84912
+ 	* config/rs6000/rs6000-builtin.def (DIVWEO): Delete macro expansion.
+ 	(DIVWEUO): Likewise.
+ 	(DIVDEO): Likewise.
+ 	(DIVDEUO): Likewise.
+ 	* config/rs6000/rs6000.c (builtin_function_type): Remove support for
+ 	DIVWEUO and DIVDEUO.
+ 	* config/rs6000/rs6000.md: Update copyright date.
+ 	(UNSPEC_DIVEO, UNSPEC_DIVEUO): Delete unspecs.
+ 	(UNSPEC_DIV_EXTEND): Remove deleted unspecs.
+ 	(div_extend): Likewise.
+ 	* doc/extend.texi: Update copyright date.
+ 	(__builtin_divweo): Remove documentation for deleted builtin function.
+ 	(__builtin_divweuo): Likewise.
+ 	(__builtin_divdeo): Likewise.
+ 	(__builtin_divdeuo): Likewise.
+ 
+ 2018-03-30  Cesar Philippidis  <cesar@codesourcery.com>
+ 
+ 	Backport from mainline
+ 	2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
+ 
+ 	PR target/85056
+ 	* config/nvptx/nvptx.c (nvptx_assemble_decl_begin): Add '[]' to
+ 	extern array declarations.
+ 
+ 2018-03-29  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-22  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/84826
+ 	* config/arm/arm.h (machine_function): Add static_chain_stack_bytes.
+ 	* config/arm/arm.c (arm_compute_static_chain_stack_bytes): Avoid
+ 	re-computing once computed.
+ 	(arm_expand_prologue): Compute machine->static_chain_stack_bytes.
+ 	(arm_init_machine_status): Initialize
+ 	machine->static_chain_stack_bytes.
+ 
+ 2018-03-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/85026
+ 	* config/arm/arm.md (unaligned_loadhis): Remove first alternative.
+ 	Clean up attributes.
+ 
+ 2018-03-28  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2018-03-08  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR target/82411
+ 	* config/rs6000/rs6000.c (rs6000_elf_in_small_data_p): Don't put
+ 	readonly data in sdata, if that is disabled.
+ 	* config/rs6000/sysv4.opt (mreadonly-in-sdata): New option.
+ 	* doc/invoke.texi (RS/6000 and PowerPC Options): Document
+ 	-mreadonly-in-sdata option.
+ 
+ 2018-03-27  Carl Love  <cel@us.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-14  Carl Love  <cel@us.ibm.com>
+ 
+ 	* config/rs6000/r6000.c (rtx_is_swappable_p): Add case UNSPEC_VPERMXOR.
+ 
+ 2018-03-27  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	Backport from mainline:
+ 	2018-03-20  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/82989
+ 	* config/arm/neon.md (ashldi3_neon): Update ?s for constraints
+ 	to favor GPR over NEON registers.
+ 	(<shift>di3_neon): Likewise.
+ 
+ 2018-03-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/82518
+ 	* config/arm/arm.c (arm_array_mode_supported_p): Return false for
+ 	BYTES_BIG_ENDIAN.
+ 
+ 2018-03-22  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	backport from trunk:
+ 	2018-03-22  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	PR tree-optimization/84956
+ 	* tree-ssa-tail-merge.c (find_clusters_1): Skip bbs with
+ 	bb_has_abnormal_pred.
+ 
+ 2018-03-18  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2016-12-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.c (pa_callee_copies): New function.
+ 	* config/pa/pa.opt (mcaller-copies): New option.
+ 	* doc/invoke.texi (mcaller-copies): Document option.
+ 
+ 2018-03-14  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	PR target/83451
+ 	* config/pa/pa.c (pa_emit_move_sequence):  Always emit secondary reload
+ 	insn for floating-point loads and stores.
+ 
+ 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* doc/invoke.texi (-mclflushopt): Fix spelling of option.
+ 
+ 2018-03-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-02-14  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	PR target/83984
+ 	* config/pa/pa.md: Load address of PIC label using the linkage table
+ 	if the label is nonlocal.
+ 
+ 	Backport from mainline
+ 	2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.h (ASM_GENERATE_INTERNAL_LABEL): Revise to use
+ 	sprint_ul.
+ 	(ASM_OUTPUT_ADDR_VEC_ELT): Revise for above change.
+ 	(ASM_OUTPUT_ADDR_DIFF_ELT): Likewise.
+ 	* config/pa/pa64-hpux.h (ASM_GENERATE_INTERNAL_LABEL): Revise as above.
+ 
+ 2018-03-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2016-12-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/77844
+ 	* valtrack.c: Include rtl-iter.h.
+ 	(struct rtx_subst_pair): Add insn field.
+ 	(propagate_for_debug_subst): If pair->to contains at least 2
+ 	regs, create a DEBUG_INSN with a debug temp before pair->insn
+ 	and replace from with the debug temp instead of pair->to.
+ 	(propagate_for_debug): Initialize p.insn.
+ 	* combine.c (insn_uid_check): New inline function.
+ 	(INSN_COST, LOG_LINKS): Use it instead of INSN_UID.
+ 	(find_single_use, combine_instructions,
+ 	cant_combine_insn_p, try_combine): Use NONDEBUG_INSN_P instead of
+ 	INSN_P.
+ 
+ 2018-03-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-04  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR ipa/82352
+ 	* ipa-icf.c (sem_function::merge): Do not cross comdat boundary.
+ 
+ 2018-03-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-10-31  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR gcov-profile/82633
+ 	* doc/gcov.texi: Document -fkeep-{static,inline}-functions and
+ 	their interaction with GCOV infrastructure.
+ 	* configure.ac: Add -fkeep-static-functions to
+ 	coverage_flags.
+ 	* configure: Regenerate.
+ 
+ 2018-03-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-10-27  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR gcov-profile/82457
+ 	* doc/invoke.texi: Document that one needs a non-strict ISO mode
+ 	for fork-like functions to be properly instrumented.
+ 
+ 2018-03-07  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	* config/s390/s390-opts.h (enum indirect_branch): Define.
+ 	* config/s390/s390-protos.h (s390_return_addr_from_memory)
+ 	(s390_indirect_branch_via_thunk)
+ 	(s390_indirect_branch_via_inline_thunk): Add function prototypes.
+ 	(enum s390_indirect_branch_type): Define.
+ 	* config/s390/s390.c (struct s390_frame_layout, struct
+ 	machine_function): Remove.
+ 	(indirect_branch_prez10thunk_mask, indirect_branch_z10thunk_mask)
+ 	(indirect_branch_table_label_no, indirect_branch_table_name):
+ 	Define variables.
+ 	(INDIRECT_BRANCH_NUM_OPTIONS): Define macro.
+ 	(enum s390_indirect_branch_option): Define.
+ 	(s390_return_addr_from_memory): New function.
+ 	(s390_handle_string_attribute): New function.
+ 	(s390_attribute_table): Add new attribute handler.
+ 	(s390_execute_label): Handle UNSPEC_EXECUTE_JUMP patterns.
+ 	(s390_indirect_branch_via_thunk): New function.
+ 	(s390_indirect_branch_via_inline_thunk): New function.
+ 	(s390_function_ok_for_sibcall): When jumping via thunk disallow
+ 	sibling call optimization for non z10 compiles.
+ 	(s390_emit_call): Force indirect branch target to be a single
+ 	register.  Add r1 clobber for non-z10 compiles.
+ 	(s390_emit_epilogue): Emit return jump via return_use expander.
+ 	(s390_reorg): Handle JUMP_INSNs as execute targets.
+ 	(s390_option_override_internal): Perform validity checks for the
+ 	new command line options.
+ 	(s390_indirect_branch_attrvalue): New function.
+ 	(s390_indirect_branch_settings): New function.
+ 	(s390_set_current_function): Invoke s390_indirect_branch_settings.
+ 	(s390_output_indirect_thunk_function):  New function.
+ 	(s390_code_end): Implement target hook.
+ 	(s390_case_values_threshold): Implement target hook.
+ 	(TARGET_ASM_CODE_END, TARGET_CASE_VALUES_THRESHOLD): Define target
+ 	macros.
+ 	* config/s390/s390.h (struct s390_frame_layout)
+ 	(struct machine_function): Move here from s390.c.
+ 	(TARGET_INDIRECT_BRANCH_NOBP_RET)
+ 	(TARGET_INDIRECT_BRANCH_NOBP_JUMP)
+ 	(TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
+ 	(TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
+ 	(TARGET_INDIRECT_BRANCH_NOBP_CALL)
+ 	(TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
+ 	(TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL)
+ 	(TARGET_INDIRECT_BRANCH_THUNK_NAME_EX)
+ 	(TARGET_INDIRECT_BRANCH_TABLE): Define macros.
+ 	* config/s390/s390.md (UNSPEC_EXECUTE_JUMP)
+ 	(INDIRECT_BRANCH_THUNK_REGNUM): Define constants.
+ 	(mnemonic attribute): Add values which aren't recognized
+ 	automatically.
+ 	("*cjump_long", "*icjump_long", "*basr", "*basr_r"): Disable
+ 	pattern for branch conversion.  Fix mnemonic attribute.
+ 	("*c<code>", "*sibcall_br", "*sibcall_value_br", "*return"): Emit
+ 	indirect branch via thunk if requested.
+ 	("indirect_jump", "<code>"): Expand patterns for branch conversion.
+ 	("*indirect_jump"): Disable for branch conversion using out of
+ 	line thunks.
+ 	("indirect_jump_via_thunk<mode>_z10")
+ 	("indirect_jump_via_thunk<mode>")
+ 
+ 2018-03-07  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	PR target/PR84295
+ 	* config/s390/s390.c (s390_set_current_function): Invoke
+ 	s390_indirect_branch_settings also if fndecl didn't change.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-20  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c/84310
+ 	PR target/79747
+ 	* final.c (shorten_branches): Build align_tab array with one
+ 	more element.
+ 	* opts.c (finish_options): Add alignment option limit check.
+ 	(MAX_CODE_ALIGN): Likewise.
+ 	(MAX_CODE_ALIGN_VALUE): Likewise.
+ 	* doc/invoke.texi: Document maximum allowed option value for
+ 	all -falign-* options.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-19  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR other/80589
+ 	* doc/invoke.texi: Fix typo.
+ 	* params.def (PARAM_MAX_LOOP_HEADER_INSNS): Likewise.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-05  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR gcov-profile/84137
+ 	* doc/gcov.texi: Fix typo in documentation.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-05  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR gcov-profile/83879
+ 	* doc/gcov.texi: Document necessity of --dynamic-list-data when
+ 	using dlopen functionality.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-12-19  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR rtl-optimization/82675
+ 	* loop-unroll.c (unroll_loop_constant_iterations): Allocate one
+ 	more element in sbitmap.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-03-05  Martin Liska  <mliska@suse.cz>
+ 
+ 	* ipa-utils.c (ipa_merge_profiles): Do not merge alias or
+ 	a function without profile.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-21  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	PR c/84229
+ 	* ipa-cp.c (determine_versionability): Do not version functions caling
+ 	va_arg_pack.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	PR ipa/81360
+ 	* cgraph.h (symtab_node::output_to_lto_symbol_table_p): Declare
+ 	* symtab.c: Include builtins.h
+ 	(symtab_node::output_to_lto_symbol_table_p): Move here
+ 	from lto-streamer-out.c:output_symbol_p.
+ 	* lto-streamer-out.c (write_symbol): Turn early exit to assert.
+ 	(output_symbol_p): Move all logic to symtab.c
+ 	(produce_symtab): Update.
+ 
+ 2017-03-02  Thomas Schwinge  <thomas@codesourcery.com>
+ 
+ 	Backport from trunk r256891:
+ 	2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
+ 
+ 	PR target/83790
+ 	* config/nvptx/nvptx.c (output_init_frag): Don't use generic address
+ 	spaces for function labels.
+ 
+ 2018-02-21  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	Backport from trunk
+ 	2018-01-10  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/82096
+ 	* expmed.c (emit_store_flag_force): Swap if const op0
+ 	and change VOIDmode to mode of op0.
+ 
+ 2018-02-15  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2018-02-06  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/84154
+ 	* config/rs6000/rs6000.md (su code attribute): Use "u" for
+ 	unsigned_fix, not "s".
+ 
+ 2018-02-15  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
+ 
+ 	Back port from mainline
+ 	2018-01-30  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>
+ 
+ 	PR target/83758
+ 	* config/rs6000/rs6000.c (rs6000_internal_arg_pointer): Only return
+ 	a reg rtx.
+ 
+ 2018-02-10  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.c (hppa_profile_hook): Mark SYMBOL_REF for _mcount as
+ 	function label.
+ 
+ 	Backport from mainline
+ 	2018-02-01  Aldy Hernandez  <aldyh@redhat.com>
+ 
+ 	PR target/84089
+ 	* config/pa/predicates.md (base14_operand): Handle VOIDmode.
+ 
+ 2018-02-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	Backport from mainline
+ 	2018-01-30  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	PR bootstrap/84017
+ 	* configure.ac (gcc_cv_as_shf_merge): Disable on Solaris 10/x86.
+ 	* configure: Regenerate.
+ 
+ 2018-02-01  Renlin Li  <renlin.li@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-02-01  Renlin Li  <renlin.li@arm.com>
+ 
+ 	PR target/83370
+ 	* config/aarch64/aarch64.c (aarch64_class_max_nregs): Handle
+ 	TAILCALL_ADDR_REGS.
+ 	(aarch64_register_move_cost): Likewise.
+ 	* config/aarch64/aarch64.h (reg_class): Rename CALLER_SAVE_REGS to
+ 	TAILCALL_ADDR_REGS.
+ 	(REG_CLASS_NAMES): Likewise.
+ 	(REG_CLASS_CONTENTS): Rename CALLER_SAVE_REGS to
+ 	TAILCALL_ADDR_REGS. Remove IP registers.
+ 	* config/aarch64/aarch64.md (Ucs): Update register constraint.
+ 
+ 2018-02-01  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	Backport from mainline
+ 	2017-11-15  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	PR tree-optimization/82726
+ 	PR tree-optimization/70754
+ 	* tree-predcom.c (order_drefs_by_pos): New function.
+ 	(combine_chains): Move code setting has_max_use_after to...
+ 	(try_combine_chains): ...here.  New parameter.  Sort combined chains
+ 	according to position information.
+ 	(tree_predictive_commoning_loop): Update call to above function.
+ 	(update_pos_for_combined_chains, pcom_stmt_dominates_stmt_p): New.
+ 
+ 2018-01-31  Richard Biener <rguenther@suse.de>
+ 	    Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-01-29  Richard Biener <rguenther@suse.de>
+ 		    Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	PR bootstrap/80867
+ 	* tree-vect-stmts.c (vectorizable_call): Don't call
+ 	targetm.vectorize_builtin_md_vectorized_function if callee is
+ 	NULL.
+ 
+ 2018-01-29  Alan Modra  <amodra@gmail.com>
+ 
+ 	Backport from mainline
+ 	2018-01-26  Alan Modra  <amodra@gmail.com>
+ 	PR target/84033
+ 	* config/rs6000/rs6000.c (rtx_is_swappable_p): Exclude
+ 	UNSPEC_VBPERMQ.
+ 
+ 2018-01-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-01-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	* config/rs6000/rs6000-p8swap.c (swap_feeds_both_load_and_store):
+ 	New function.
+ 	(rs6000_analyze_swaps): Mark a web unoptimizable if it contains a
+ 	swap associated with both a load and a store.
+ 
+ 2018-01-23  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Back port from mainline
+ 	2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/83399
+ 	* config/rs6000/rs6000.c (print_operand) <'y'>: Use
+ 	VECTOR_MEM_ALTIVEC_OR_VSX_P.
+ 	* config/rs6000/vsx.md (*vsx_le_perm_load_<mode> for VSX_D): Use
+ 	indexed_or_indirect_operand predicate.
+ 	(*vsx_le_perm_load_<mode> for VSX_W): Likewise.
+ 	(*vsx_le_perm_load_v8hi): Likewise.
+ 	(*vsx_le_perm_load_v16qi): Likewise.
+ 	(*vsx_le_perm_store_<mode> for VSX_D): Likewise.
+ 	(*vsx_le_perm_store_<mode> for VSX_W): Likewise.
+ 	(*vsx_le_perm_store_v8hi): Likewise.
+ 	(*vsx_le_perm_store_v16qi): Likewise.
+ 	(eight unnamed splitters): Likewise.
+ 
+ 2018-01-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/83862
+ 	* config/rs6000/rs6000-protos.h (rs6000_split_signbit): Delete,
+ 	no longer used.
+ 	* config/rs6000/rs6000.c (rs6000_split_signbit): Likewise.
+ 	* config/rs6000/rs6000.md (signbit<mode>2): Change code for IEEE
+ 	128-bit to produce an UNSPEC move to get the double word with the
+ 	signbit and then a shift directly to do signbit.
+ 	(signbit<mode>2_dm): Replace old IEEE 128-bit signbit
+ 	implementation with a new version that just does either a direct
+ 	move or a regular move.  Move memory interface to separate insns.
+ 	Move insns so they are next to the expander.
+ 	(signbit<mode>2_dm_mem_be): New combiner insns to combine load
+ 	with signbit move.  Split big and little endian case.
+ 	(signbit<mode>2_dm_mem_le): Likewise.
+ 	(signbit<mode>2_dm_<su>ext): Delete, no longer used.
+ 	(signbit<mode>2_dm2): Likewise.
+ 
+ 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
+ 
+ 	PR target/81485
+ 	* config/sh/sh-protos.h (sh_find_set_of_reg): Remove assert.
+ 
+ 2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-01-21  Oleg Endo  <olegendo@gcc.gnu.org>
+ 
+ 	PR target/80870
+ 	* config/sh/sh_optimize_sett_clrt.cc:
+ 	Use INCLUDE_ALGORITHM and INCLUDE_VECTOR instead of direct includes.
+ 
+ 2018-01-16  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2017-12-18  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR rtl-optimization/83424
+ 	* rtlanal.c (dead_or_set_regno_p): Handle CLOBBER just like SET.
+ 
+ 2018-01-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR target/83677
+ 	* config/rs6000/altivec.md (*altivec_vpermr_<mode>_internal):
+ 	Reverse order of second and third operands in first alternative.
+ 	* config/rs6000/rs6000.c (rs6000_expand_vector_set): Reverse order
+ 	of first and second elements in UNSPEC_VPERMR vector.
+ 	(altivec_expand_vec_perm_le): Likewise.
+ 
+ 2018-01-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2017-12-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/82975
+ 	* config/arm/arm.h (TEST_REGNO): Check reg_renumber is set before
+ 	accessing it.  Adjust comment.
+ 
+ 2017-12-17  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2017-12-03  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/pa.c (pa_legitimate_address_p): For scaled indexing,
+ 	require base operand is a REG_POINTER prior to reload on targets
+ 	with non-equivalent space registers.
+ 
+ 2017-12-15  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	PR target/66488
+ 	* ggc-page.c (HOST_BITS_PER_PTR): Do not define here...
+ 	* hwint.h (HOST_BITS_PER_PTR): ...but here instead.
+ 
+ 2017-12-14  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-12-13  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	* config/rs6000/ppc-auxv.h (PPC_FEATURE2_HTM_NO_SUSPEND): New define.
+ 	* config/rs6000/rs6000.c (cpu_supports_info): Use it.
+ 
+ 2017-12-14  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-10-02  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/80210
+ 	* config/rs6000/rs6000.c (rs6000_option_override_internal): Rewrite
+ 	function to not use the have_cpu variable.  Do not set cpu_index,
+ 	rs6000_cpu_index or rs6000_tune_index if we end up using TARGET_DEFAULT
+ 	or the default cpu.
+ 	(rs6000_valid_attribute_p): Remove duplicate initializations of
+ 	old_optimize and func_optimize.
+ 	(rs6000_pragma_target_parse): Call rs6000_activate_target_options ().
+ 	(rs6000_activate_target_options): Make global.
+ 	* config/rs6000/rs6000-protos.h (rs6000_activate_target_options): Add
+ 	prototype.
+ 
+ 2017-12-11  Thomas Schwinge  <thomas@codesourcery.com>
+ 
+ 	PR c++/83301
+ 
+ 	Backport trunk r243377:
+ 	2016-12-07  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/78692
+ 	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Set lhs
+ 	var to lhs of new_stmt right before noreturn handling rather than to
+ 	lhs of e->call_stmt early.
+ 
+ 2017-12-04  Sebastian Peryt  <sebastian.peryt@intel.com>
+ 	H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Bakcported from trunk
+ 	PR target/82941
+ 	PR target/82942
+ 	PR target/82990
+ 	* config/i386/i386.c (pass_insert_vzeroupper): Remove
+ 	TARGET_AVX512F check from gate condition.
+ 	(ix86_check_avx256_register): Changed to ...
+ 	(ix86_check_avx_upper_register): ... this. Add extra check for
+ 	VALID_AVX512F_REG_OR_XI_MODE.
+ 	(ix86_avx_u128_mode_needed): Changed
+ 	ix86_check_avx256_register to ix86_check_avx_upper_register.
+ 	(ix86_check_avx256_stores): Changed to ...
+ 	(ix86_check_avx_upper_stores): ... this. Changed
+ 	ix86_check_avx256_register to ix86_check_avx_upper_register.
+ 	(ix86_avx_u128_mode_after): Changed
+ 	avx_reg256_found to avx_upper_reg_found. Changed
+ 	ix86_check_avx256_stores to ix86_check_avx_upper_stores.
+ 	(ix86_avx_u128_mode_entry): Changed
+ 	ix86_check_avx256_register to ix86_check_avx_upper_register.
+ 	(ix86_avx_u128_mode_exit): Ditto.
+ 	(ix86_option_override_internal): Set MASK_VZEROUPPER if
+ 	neither -mzeroupper nor -mno-zeroupper is used and
+ 	TARGET_EMIT_VZEROUPPER is set.
+ 	* config/i386/i386.h: (host_detect_local_cpu): New define.
+ 	(TARGET_EMIT_VZEROUPPER): New.
+ 	* config/i386/x86-tune.def: Add X86_TUNE_EMIT_VZEROUPPER
+ 
+ 2017-12-01  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2017-11-28  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR 81288/target
+ 	* config/rs6000/rs6000.c (rs6000_rtx_costs): Do not handle
+ 	TARGET_ISEL && !TARGET_MFCRF differently.  Simplify code.
+ 
+ 2017-11-29  Daniel Cederman  <cederman@gaisler.com>
+ 
+ 	Backport from mainline
+ 	* config/sparc/sparc.c (sparc_do_work_around_errata): Treat the
+         movsi_pic_gotdata_op instruction as a load for the UT699 errata
+         workaround.
+ 
+ 2017-11-24  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2017-11-17  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR rtl-optimization/82621
+ 	* combine.c (try_combine): Do not split PARALLELs of two SETs if the
+ 	dest of one of those SETs is unused.
+ 
+ 2017-11-21  Pat Haugen  <pthaugen@us.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-11-21  Pat Haugen  <pthaugen@us.ibm.com>
+ 
+ 	* config/rs6000/ppc-asm.h (f50, vs50): Fix values.
+ 
+ 2017-11-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	Backport from mainline
+ 	2017-11-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	* config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since
+ 	Solaris 11.  Update comment.
+ 	* configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12
+ 	renaming.
+ 	* config/sol2.h (STARTFILE_SPEC): Likewise.
+ 	* configure: Regenerate.
+ 
+ 2017-11-16  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* config/i386/i386.c (x86_print_call_or_nop): Emit 5 byte nop
+ 	explicitly as a stream of bytes.
+ 
+ 2017-11-13  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	Backport from mainline
+ 	2017-10-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	* configure.ac (gcc_cv_as_ix86_xbrace_comment): Check if assembler
+ 	supports -xbrace_comment option.
+ 	* configure: Regenerate.
+ 	* config.in: Regenerate.
+ 	* config/i386/sol2.h (ASM_XBRACE_COMMENT_SPEC): Define.
+ 	(ASM_CPU_SPEC): Use it.
+ 
+ 2017-11-09  Andre McCurdy  <armccurdy@gmail.com>
+ 
+ 	* config/arm/arm-cores.def: Fix missing FL_LPAE flag for armv7ve
+ 	compatible cores.
+ 
+ 2017-11-09  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2017-11-01  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR rtl-optimization/64682
+ 	PR rtl-optimization/69567
+ 	PR rtl-optimization/69737
+ 	PR rtl-optimization/82683
+ 	* combine.c (distribute_notes) <REG_DEAD>: If the new I2 sets the same
+ 	register mentioned in the note, drop the note, unless it came from I3,
+ 	in which case it should go to I3 again.
+ 
+ 2017-10-31  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/82772
+ 	* config/alpha/sync.md (fetchop_constr) <and>: Change to "rINM".
+ 
+ 2017-10-20  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-03-09  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	* config/rs6000/rs6000.c (rs6000_gen_le_vsx_permute): Use rotate
+ 	instead of vec_select for V1TImode.
+ 	* conifg/rs6000/vsx.md (VSX_LE): Remove mode iterator that is no
+ 	longer needed.
+ 	(VSX_LE_128): Add V1TI to this mode iterator.
+ 	(*vsx_le_perm_load_<mode>): Change to use VSX_D mode iterator.
+ 	(*vsx_le_perm_store_<mode>): Likewise.
+ 	(pre-reload splitter for VSX stores): Likewise.
+ 	(post-reload splitter for VSX stores): Likewise.
+ 	(*vsx_xxpermdi2_le_<mode>): Likewise.
+ 	(*vsx_lxvd2x2_le_<mode>): Likewise.
+ 	(*vsx_stxvd2x2_le_<mode>): Likewise.
+ 
+ 2017-10-19  Richard Earnshaw  <rearnsha@arm.com>
+ 
+ 	PR target/82445
+ 	* config/arm/arm.c (align_ok_ldrd_strd): New function.
+ 	(mem_ok_for_ldrd_strd): New parameter align.  Extract the alignment of
+ 	the mem into it.
+ 	(gen_operands_ldrd_strd): Validate the alignment of the accesses.
+ 
+ 2017-10-18  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR rtl-optimization/82602
+ 	* ira.c (rtx_moveable_p): Return false for volatile asm.
+ 
+ 2017-10-17  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/82549
+ 	* fold-const.c (optimize_bit_field_compare, fold_truth_andor_1):
+ 	Formatting fixes.  Instead of calling make_bit_field_ref with negative
+ 	bitpos return 0.
+ 
+ 2017-10-13  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82274
+ 	* internal-fn.c (expand_mul_overflow): If both operands have
+ 	the same highpart of -1 or 0 and the topmost bit of lowpart
+ 	is different, overflow is if res <= 0 rather than res < 0.
+ 
+ 2017-10-10  Andreas Tobler  <andreast@gcc.gnu.org>
+ 
+ 	* config.gcc: (armv7*-*-freebsd*): New target.
+ 	Define TARGET_FREEBSD_ARMv7
+ 	* config/arm/freebsd.h: Use TARGET_FREEBSD_ARMv7 to define the
+ 	default cpu for armv7*-*-freebsd*.
+ 
+ 2017-10-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-09-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	* config/i386/i386.c (ix86_split_idivmod): Use mode instead of
+ 	always SImode for DIV and MOD in REG_EQUAL notes.
+ 
+ 2017-10-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-09-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/82337
+ 	* gimple-ssa-strength-reduction.c (find_phi_def): Don't record a
+ 	phi definition if the PHI result appears in an abnormal PHI.
+ 	(find_basis_for_base_expr): Don't record a basis if the LHS of the
+ 	basis appears in an abnormal PHI.
+ 
+ 2017-09-21  Alan Modra  <amodra@gmail.com>
+ 
+ 	PR target/81996
+ 	* gcc/config/rs6000/rs6000.c (rs6000_return_addr): Use
+ 	stack_pointer_rtx for count 0.  Update comments.  Break up
+ 	large rtl expression.
+ 
+ 2017-09-21  Wilco Dijkstra  <wdijkstr@arm.com>
+ 
+ 	PR target/71951
+ 	* config/aarch64/aarch64.h (LIBGCC2_UNWIND_ATTRIBUTE): Define.
+ 
+ 2017-09-19  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* config/i386/i386.c (fold_builtin_cpu): Add M_AMDFAM17H
+ 	to processor_model and "amdfam17h" to arch_names_table.
+ 	* doc/extend.texi (__builtin_cpu_is): Document amdfam17h CPU name.
+ 
+ 2017-09-19  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c++/81355
+ 	* config/i386/i386.c (sorted_attr_string): Skip empty strings.
+ 
+ 2017-09-19  Martin Liska  <mliska@suse.cz>
+ 
+ 	Revert backport:
+ 	2017-08-10  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c++/81355
+ 	* c-attribs.c (handle_target_attribute):
+ 	Report warning for an empty string argument of target attribute.
+ 
+ 2017-09-18  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-08-28  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/81977
+ 	* tree-ssa-sccvn.c (vn_reference_lookup_3): Fix look through
+ 	memcpy.
+ 
+ 	2017-09-04  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82084
+ 	* fold-const.h (can_native_encode_string_p): Declare.
+ 	* fold-const.c (can_native_encode_string_p): Factor out from ...
+ 	(native_encode_string): ... here.
+ 	* tree-vect-stmts.c (vectorizable_store): Call it to avoid
+ 	vectorizing stores from constants we later cannot handle.
+ 
+ 	2017-07-25  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/81505
+ 	* fold-const.c (fold_negate_const): TREE_OVERFLOW should be
+ 	sticky.
+ 
+ 2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-09-05  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/81768
+ 	* omp-low.c (lower_omp_for): Recompute tree invariant if
+ 	gimple_omp_for_initial/final is ADDR_EXPR.
+ 
+ 	PR middle-end/81768
+ 	* omp-low.c (expand_omp_simd): Force second operands of COND_EXPR
+ 	into gimple val before gimplification fo the COND_EXPR.
+ 
+ 	2017-09-04  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	* lra-remat.c (reg_overlap_for_remat_p): Fix a pasto.
+ 
+ 	2017-08-09  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/81687
+ 	* omp-low.c (omp_copy_decl): Don't remap FORCED_LABEL or DECL_NONLOCAL
+ 	LABEL_DECLs.
+ 	* tree-cfg.c (move_stmt_op): Don't adjust DECL_CONTEXT of FORCED_LABEL
+ 	or DECL_NONLOCAL labels.
+ 	(move_stmt_r) <case GIMPLE_LABEL>: Adjust DECL_CONTEXT of FORCED_LABEL
+ 	or DECL_NONLOCAL labels here.
+ 
+ 	2017-08-08  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/81766
+ 	* function.c (thread_prologue_and_epilogue_insns): Restore
+ 	behavior of always calling find_many_sub_basic_blocks on
+ 	the inserted prologue.
+ 
+ 	2017-08-03  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/81621
+ 	* bb-reorder.c (pass_partition_blocks::execute): Return TODO_df_finish
+ 	after setting changeable df flags.
+ 
+ 	PR middle-end/81052
+ 	* omp-low.c (diagnose_sb_0): Handle flag_openmp_simd like flag_openmp.
+ 	(pass_diagnose_omp_blocks::gate): Enable also for flag_openmp_simd.
+ 
+ 	2017-08-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/79499
+ 	* function.c (thread_prologue_and_epilogue_insns): Determine blocks
+ 	for find_many_sub_basic_blocks bitmap by looking up BLOCK_FOR_INSN
+ 	of first NONDEBUG_INSN_P in each of the split_prologue_seq and
+ 	prologue_seq sequences - if any.
+ 
+ 	2017-06-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/81225
+ 	* config/i386/sse.md (vec_extract_lo_<mode><mask_name>): For
+ 	V8FI, V16FI and VI8F_256 iterators, use <store_mask_predicate> instead
+ 	of nonimmediate_operand and <store_mask_constraint> instead of m for
+ 	the input operand.  For V8FI iterator, always split if input is a MEM.
+ 	For V16FI and V8SF_256 iterators, don't test if both operands are MEM
+ 	if <mask_applied>.  For VI4F_256 iterator, use <store_mask_predicate>
+ 	instead of register_operand and <store_mask_constraint> instead of v for
+ 	the input operand.  Make sure both operands aren't MEMs for if not
+ 	<mask_applied>.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-11  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR tree-opt/79987
+ 	* tree-chkp.c (chkp_get_bounds_for_decl_addr): Do not instrument
+ 	variables of void type.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-06-28  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR sanitizer/81224
+ 	* asan.c (instrument_derefs): Bail out inner references
+ 	that are hard register variables.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-30  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR inline-asm/82001
+ 	* ipa-icf-gimple.c (func_checker::compare_tree_list_operand):
+ 	Rename to ...
+ 	(func_checker::compare_asm_inputs_outputs): ... this function.
+ 	(func_checker::compare_gimple_asm): Use the function to compare
+ 	also ASM constrains.
+ 	* ipa-icf-gimple.h: Rename the function.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-29  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR other/39851
+ 	* gcc.c (driver_handle_option): Add new argument.
+ 	* opts-common.c (handle_option): Pass
+ 	target_option_override_hook.
+ 	* opts-global.c (lang_handle_option): Add new option.
+ 	(set_default_handlers):  Add new argument.
+ 	(decode_options): Likewise.
+ 	* opts.c (target_handle_option): Likewise.
+ 	(common_handle_option): Call target_option_override_hook.
+ 	* opts.h (struct cl_option_handler_func): Add hook for
+ 	target option override.
+ 	(struct cl_option_handlers): Likewise.
+ 	(set_default_handlers): Add new argument.
+ 	(decode_options): Likewise.
+ 	(common_handle_option): Likewise.
+ 	(target_handle_option): Likewise.
+ 	* toplev.c (toplev::main): Pass targetm.target_option.override
+ 	hook.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-10  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c++/81355
+ 	* c-attribs.c (handle_target_attribute):
+ 	Report warning for an empty string argument of target attribute.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR tree-opt/81696
+ 	* ipa-icf-gimple.c (func_checker::compare_cst_or_decl): Consider
+ 	LABEL_DECLs that can be from a different function.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-06-28  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR ipa/81128
+ 	* ipa-visibility.c (non_local_p): Handle visibility.
+ 
+ 2017-09-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-09-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR target/81833
+ 	* config/rs6000/altivec.md (altivec_vsum2sws): Convert from a
+ 	define_insn to a define_expand.
+ 	(altivec_vsum2sws_direct): New define_insn.
+ 	(altivec_vsumsws): Convert from a define_insn to a define_expand.
+ 
+ 2017-09-11  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	Backport from mainline
+ 	PR target/82181
+ 	* config/xtensa/xtensa.c (xtensa_mem_offset): Check that both
+ 	words of DImode object are reachable by xtensa_uimm8x4 access.
+ 
+ 2017-09-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline:
+ 	2017-08-30  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/81987
+ 	* gimple-ssa-strength-reduction.c (insert_initializers): Don't
+ 	insert an initializer in a location not dominated by the stride
+ 	definition.
+ 
+ 2017-09-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-08-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 		    Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/81503
+ 	* gimple-ssa-strength-reduction.c (replace_mult_candidate): Ensure
+ 	folded constant fits in the target type; reorder tests for clarity.
+ 
+ 2017-08-30  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2017-08-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/81593
+ 	* config/rs6000/vsx.md (vsx_concat_<mode>_1): New combiner insns
+ 	to recognize inserting into a vector from a double word element
+ 	that was extracted from another vector, and eliminate extra
+ 	XXPERMDI instructions.
+ 	(vsx_concat_<mode>_2): Likewise.
+ 	(vsx_concat_<mode>_3): Likewise.
+ 	(vsx_set_<mode>, VSX_D): Rewrite vector set in terms of vector
+ 	concat to allow optimizing inserts from previous extracts.
+ 
+ 2017-08-29  Alan Modra  <amodra@gmail.com>
+ 
+ 	Apply from mainline
+ 	2017-08-12  Alan Modra  <amodra@gmail.com>
+ 	PR target/81170
+ 	PR target/81295
+ 	* config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
+ 	match gnu-user.h startfile.
+ 	(ENDFILE_LINUX_SPEC): Similarly.
+ 
+ 	2017-08-08  Alan Modra  <amodra@gmail.com>
+ 		    H.J. Lu  <hongjiu.lu@intel.com>
+ 	PR target/81170
+ 	PR target/81295
+ 	PR driver/81523
+ 	* gcc.c (NO_PIE_SPEC): Delete.
+ 	(PIE_SPEC): Define as !no-pie/pie.  Move static|shared|r
+ 	exclusion..
+ 	(LINK_PIE_SPEC): ..to here.
+ 	(LINK_COMMAND_SPEC): Support -no-pie.
+ 	* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
+ 	chain of crtbegin*.o selection, update for PIE_SPEC changes and
+ 	format.
+ 	(GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
+ 	* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
+ 	(ENDFILE_CRTEND_SPEC): Similarly.
+ 
+ 2017-08-24  Yvan Roux  <yvan.roux@linaro.org>
+ 
+ 	Backport from mainline
+ 	2017-04-17  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+ 
+ 	PR c++/80287
+ 	* class.c (fixup_may_alias): Fix all type variants.
+ 
+ 2017-08-22  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-08-17  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/80210
+ 	* config/rs6000/rs6000.c (rs6000_activate_target_options): New function.
+ 	(rs6000_set_current_function): Rewrite function to use it.
+ 
+ 2017-08-22  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-08-22 trunk r251256.
+ 
+ 	PR target/81910
+ 	* config/avr/avr.c (avr_handle_addr_attribute): Early return if
+ 	not VAR_P. Filter attribute warnings with OPT_Wattributes.
+ 	(avr_attribute_table) <io, io_low, address>: Initialize
+ 	.decl_required with true.
+ 
+ 2017-08-21  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	PR target/79883
+ 	* config/avr/avr.c (avr_set_current_function): Typo in diagnostic.
+ 
+ 2017-08-19  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81894
+ 	* doc/extend.texi (x86 Built-in Functions): Correct the name of
+ 	__builtin_ia32_lzcnt_u16.
+ 
+ 2017-08-17  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	Backport from mainline
+ 	2017-08-17  Maxim Ostapenko  <m.ostapenko@samsung.com>
+ 
+ 	PR target/81861
+ 	* config/i386/i386.c (ix86_option_override_internal): Save target
+ 	specific options after ix86_stack_protector_guard_reg was changed.
+ 
+ 2017-08-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-08-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/81354
+ 	* gimple-ssa-strength-reduction.c (create_add_on_incoming_edge):
+ 	Insert on edges rather than explicitly creating landing pads.
+ 	(analyze_candidates_and_replace): Commit edge inserts.
+ 
+ 2017-08-01  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81641
+ 	* config/i386/i386.c (ix86_print_operand_address_as): For -masm=intel
+ 	print "ds:" only for immediates in generic address space.
+ 
+ 2017-07-31  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/81604
+ 	* ubsan.c (ubsan_type_descriptor): For UBSAN_PRINT_ARRAY don't
+ 	change type to the element type, instead add eltype variable and
+ 	use it where we are interested in the element type.
+ 
+ 2017-07-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-07-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	* config/rs6000/ppc-auxv.h (PPC_FEATURE2_DARN): New define.
+ 	(PPC_FEATURE2_SCV): Likewise.
+ 	* config/rs6000/rs6000.c (cpu_supports_info): Use them.
+ 
+ 2017-07-28  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	Backport from mainline r250496
+ 	2017-07-25  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	PR target/81414
+ 	* config/aarch64/cortex-a57-fma-steering.c (analyze): Skip fmul/fmac
+ 	instructions if no du chain is found.
+ 
+ 2017-07-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/81555
+ 	PR tree-optimization/81556
+ 	* tree-ssa-reassoc.c (rewrite_expr_tree): Add NEXT_CHANGED argument,
+ 	if true, force CHANGED for the recursive invocation.
+ 	(reassociate_bb): Remember original length of ops array, pass
+ 	len != orig_len as NEXT_CHANGED in rewrite_expr_tree call.
+ 
+ 2017-07-26  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline r235874
+ 	2016-05-04  Alan Modra  <amodra@gmail.com>
+ 
+ 	* config/rs6000/rs6000.c (rs6000_elf_output_toc_section_asm_op):
+ 	Align .toc.
+ 
+ 2017-07-26  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2016-06-15 trunk r237486.
+ 	Backport from 2017-07-12 trunk r250156.
+ 
+ 	PR target/79883
+ 	PR target/67353
+ 	* config/avr/avr.c (avr_set_current_function): Warn misspelled ISR
+ 	only if -Wmisspelled-isr is on.  In diagnostic messages: Quote
+ 	keywords and (parts of) identifiers.
+ 	[WITH_AVRLIBC]: Warn functions named "ISR", "SIGNAL" or "INTERUPT".
+ 	* doc/invoke.texi (AVR Options) <-Wmisspelled-isr>: Decument.
+ 
+ 2017-07-26  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-07-05 trunk r249995.
+ 
+ 	PR target/81305
+ 	* config/avr/avr.c (avr_out_movhi_mr_r_xmega) [CONSTANT_ADDRESS_P]:
+ 	Don't depend on "optimize > 0".
+ 	(out_movhi_r_mr, out_movqi_mr_r): Same.
+ 	(out_movhi_mr_r, out_movqi_r_mr): Same.
+ 	(avr_address_cost) [CONSTANT_ADDRESS_P]: Don't depend cost for
+ 	io_address_operand on "optimize > 0".
+ 
+ 2017-07-26  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-07-12 trunk r250151.
+ 
+ 	PR target/81407
+ 	* config/avr/avr.c (avr_encode_section_info)
+ 	[progmem && !TREE_READONLY]: Error if progmem object needs
+ 	constructing.
+ 
+ 2017-07-26  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-07-26 gcc-7-branch r250562.
+ 
+ 	PR 81487
+ 	* hsa-brig.c (brig_init): Use xasprintf instead of asprintf.
+ 	* tree-ssa-structalias.c (alias_get_name): Same.
+ 
+ 2017-07-25  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2016-07-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/81162
+ 	* gimple-ssa-strength-reduction.c (replace_mult_candidate): Don't
+ 	replace a negate with an add.
+ 
+ 2017-07-25  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from trunk r247719.
+ 
+ 	2017-05-06  Richard Sandiford  <richard.sandiford@linaro.org>
+ 
+ 	PR rtl-optimization/75964
+ 	* simplify-rtx.c (simplify_const_relational_operation): Remove
+ 	invalid handling of comparisons of integer ABS.
+ 
+ 2017-07-24  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/80569
+ 	* config/i386/i386.c (ix86_option_override_internal): Disable
+ 	BMI, BMI2 and TBM instructions for -m16.
+ 
+ 2017-07-18  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81471
+ 	* config/i386/i386.md (rorx_immediate_operand): New mode attribute.
+ 	(*bmi2_rorx<mode>3_1): Use rorx_immediate_operand as
+ 	operand 2 predicate.
+ 	(*bmi2_rorxsi3_1_zext): Use const_0_to_31_operand as
+ 	operand 2 predicate.
+ 	(ror,rol -> rorx splitters): Use const_int_operand as
+ 	operand 2 predicate.
+ 
+ 2017-07-17  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-07-17 trunk r250258.
+ 
+ 	PR 80929
+ 	* config/avr/avr.c (avr_mul_highpart_cost): New static function.
+ 	(avr_rtx_costs_1) [TRUNCATE]: Use it to compute mul_highpart cost.
+ 	[LSHIFTRT, outer_code = TRUNCATE]: Same.
+ 
+ 2017-07-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	Backports from trunk
+ 
+ 	2017-03-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	* config/rs6000/rs6000.c (rs6000_option_override_internal): Change
+ 	handling of certain combinations of target options, including the
+ 	combinations -mpower8-vector vs. -mno-vsx, -mpower8-vector vs.
+ 	-mno-power8-vector, and -mpower9_dform vs. -mno-power9-vector.
+ 
+ 	2017-03-27  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/80103
+ 	* config/rs6000/rs6000.c (rs6000_option_override_internal): Add
+ 	special handling for target option conflicts between dform options
+ 	(-mpower9-dform, -mpower9-dform-vector, -mpower9-dform-scalar) and
+ 	-mno-direct-move.
+ 
+ 	2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/80101
+ 	* config/rs6000/power6.md: Replace store_data_bypass_p calls with
+ 	rs6000_store_data_bypass_p in seven define_bypass directives and
+ 	in several comments.
+ 	* config/rs6000/rs6000-protos.h: Add prototype for
+ 	rs6000_store_data_bypass_p function.
+ 	* config/rs6000/rs6000.c (rs6000_store_data_bypass_p): New
+ 	function implements slightly different (rs6000-specific) semantics
+ 	than store_data_bypass_p, returning false rather than aborting
+ 	with assertion error when arguments do not satisfy the
+ 	requirements of store data bypass.
+ 	(rs6000_adjust_cost): Replace six calls of store_data_bypass_p with
+ 	rs6000_store_data_bypass_p.
+ 
+ 2017-07-14  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	Backport from mainline
+ 	2017-07-10  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81375
+ 	* config/i386/i386.md (divsf3): Add TARGET_SSE to TARGET_SSE_MATH.
+ 	(rcpps): Ditto.
+ 	(*rsqrtsf2_sse): Ditto.
+ 	(rsqrtsf2): Ditto.
+ 	(div<mode>3): Macroize insn from divdf3 and divsf3
+ 	using MODEF mode iterator.
+ 
+ 	Backport from mainline
+ 	2017-07-04  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81300
+ 	* config/i386/i386.md (setcc + movzbl/and to xor + setcc peepholes):
+ 	Require dead FLAGS_REG at the beginning of a peephole.
+ 
+ 2017-07-13  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	backport from mainline:
+ 	PR tree-optimization/81192
+ 	2017-07-03  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	* tree-ssa-tail-merge.c (same_succ_flush_bb): Handle
+ 	BB_SAME_SUCC (bb) == NULL.
+ 
+ 2017-07-06  Andrew Pinski  <apinski@cavium.com>
+ 
+ 	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
+ 	Access the lower part of RTX appropriately.
+ 
+ 2017-07-04  Richard Biener  <rguenther@suse.de>
+ 
+ 	* BASE-VER: Bump to 6.4.1.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
***************
*** 83,89 ****
  	Backport from mainline
  	2017-05-04  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>
  
! 	* gcc/config/arm/arm-builtins.c (arm_init_builtins): Rename
  	__builtin_arm_ldfscr to __builtin_arm_get_fpscr, and rename
  	__builtin_arm_stfscr to __builtin_arm_set_fpscr.
  
--- 2588,2594 ----
  	Backport from mainline
  	2017-05-04  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>
  
! 	* config/arm/arm-builtins.c (arm_init_builtins): Rename
  	__builtin_arm_ldfscr to __builtin_arm_get_fpscr, and rename
  	__builtin_arm_stfscr to __builtin_arm_set_fpscr.
  
***************
*** 417,423 ****
  
  	PR target/80968
  	* config/sparc/sparc.c (sparc_flat_expand_epilogue): Don't
!         emit frame blockage here.
  	(sparc_expand_epilogue): Do it here.
  	* config/sparc/sparc.md (return expander): Emit frame blockage
  	for alloca here too.
--- 2922,2928 ----
  
  	PR target/80968
  	* config/sparc/sparc.c (sparc_flat_expand_epilogue): Don't
! 	emit frame blockage here.
  	(sparc_expand_epilogue): Do it here.
  	* config/sparc/sparc.md (return expander): Emit frame blockage
  	for alloca here too.
***************
*** 4231,4236 ****
--- 6736,6759 ----
  	* gimple-fold.c (fold_builtin_memory_op): Use
  	get_addr_base_and_unit_offset instead of get_ref_base_and_extent.
  
+ 2017-07-19  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/81193
+ 	* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If GLIBC
+ 	provides the hardware capability bits, define the macro
+ 	__BUILTIN_CPU_SUPPORTS__.
+ 	* config/rs6000/rs6000.c (cpu_expand_builtin): Generate a warning
+ 	if GLIBC does not provide the hardware capability bits.  Add a
+ 	gcc_unreachable call if the built-in cpu function is neither
+ 	__builtin_cpu_is nor __builtin_cpu_supports.
+ 	* doc/extend.texi (PowerPC built-in functions): Document that
+ 	GLIBC 2.23 or newer is needed by __builtin_cpu_is and
+ 	__builtin_cpu_supports.  Document the macros defined by GCC if the
+ 	newer GLIBC is available.
+ 
  2016-07-18  Michael Meissner  <meissner@linux.vnet.ibm.com>
  
  	Back port from mainline
diff -Nrcpad gcc-6.4.0/gcc/DATESTAMP gcc-6.5.0/gcc/DATESTAMP
*** gcc-6.4.0/gcc/DATESTAMP	Tue Jul  4 00:16:13 2017
--- gcc-6.5.0/gcc/DATESTAMP	Fri Oct 26 00:16:31 2018
***************
*** 1 ****
! 20170704
--- 1 ----
! 20181026
diff -Nrcpad gcc-6.4.0/gcc/ada/ChangeLog gcc-6.5.0/gcc/ada/ChangeLog
*** gcc-6.4.0/gcc/ada/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/ada/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,59 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-06-02  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	Backport from mainline
+ 	2018-05-31  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/trans.c (Call_to_gnu): If this is a function call and
+ 	there is no target, also create a temporary for the return value for
+ 	an allocator if the type is an unconstrained record type with default
+ 	discriminant.
+ 
+ 2018-03-06  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/trans.c (convert_with_check): Fix typo in the condition
+ 	guarding the overflow check emitted for the upper bound of a floating-
+ 	point conversion.
+ 
+ 2017-12-14  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/decl.c (gnat_to_gnu_field): Do not set the alignment
+ 	of the enclosing record type if it is not already set.
+ 
+ 2017-11-10  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/utils.c (convert) <RECORD_TYPE>: Add comment and do
+ 	not fall through to the next case.
+ 	<ARRAY_TYPE>: Deal specially with a dereference from another array
+ 	type with the same element type.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-29  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR other/39851
+ 	* gcc-interface/trans.c (Pragma_to_gnu): Set argument to NULL.
+ 
+ 2017-09-05  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/utils.c (unchecked_convert): When the result type is a
+ 	non-biased integral type with size 0, set the result to 0 directly.
+ 
+ 2017-09-05  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/trans.c (Call_to_gnu): If this is a function call and
+ 	there is no target, do not create a temporary for the return value for
+ 	an allocator either.
+ 
+ 2017-09-05  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc-interface/trans.c (pos_to_constructor): Skip conversions to an
+ 	unconstrained array type.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/ada/gcc-interface/decl.c gcc-6.5.0/gcc/ada/gcc-interface/decl.c
*** gcc-6.4.0/gcc/ada/gcc-interface/decl.c	Fri Feb 24 11:03:17 2017
--- gcc-6.5.0/gcc/ada/gcc-interface/decl.c	Thu Dec 14 17:07:28 2017
*************** gnat_to_gnu_field (Entity_Id gnat_field,
*** 6805,6811 ****
  	{
  	  const unsigned int type_align = TYPE_ALIGN (gnu_field_type);
  
! 	  if (TYPE_ALIGN (gnu_record_type) < type_align)
  	    TYPE_ALIGN (gnu_record_type) = type_align;
  
  	  /* If the position is not a multiple of the alignment of the type,
--- 6805,6812 ----
  	{
  	  const unsigned int type_align = TYPE_ALIGN (gnu_field_type);
  
! 	  if (TYPE_ALIGN (gnu_record_type)
! 	      && TYPE_ALIGN (gnu_record_type) < type_align)
  	    TYPE_ALIGN (gnu_record_type) = type_align;
  
  	  /* If the position is not a multiple of the alignment of the type,
diff -Nrcpad gcc-6.4.0/gcc/ada/gcc-interface/trans.c gcc-6.5.0/gcc/ada/gcc-interface/trans.c
*** gcc-6.4.0/gcc/ada/gcc-interface/trans.c	Fri Feb 24 10:54:09 2017
--- gcc-6.5.0/gcc/ada/gcc-interface/trans.c	Sat Jun  2 09:58:46 2018
*************** Pragma_to_gnu (Node_Id gnat_node)
*** 1469,1475 ****
  	else
  	  option_index = 0;
  
! 	set_default_handlers (&handlers);
  	control_warning_option (option_index, (int) kind, arg, imply, location,
  				lang_mask, &handlers, &global_options,
  				&global_options_set, global_dc);
--- 1469,1475 ----
  	else
  	  option_index = 0;
  
! 	set_default_handlers (&handlers, NULL);
  	control_warning_option (option_index, (int) kind, arg, imply, location,
  				lang_mask, &handlers, &global_options,
  				&global_options_set, global_dc);
*************** Call_to_gnu (Node_Id gnat_node, tree *gn
*** 4302,4313 ****
  	  because we need to preserve the return value before copying back the
  	  parameters.
  
!        2. There is no target and the call is made for neither an object nor a
! 	  renaming declaration, nor a return statement, and the return type has
! 	  variable size, because in this case the gimplifier cannot create the
! 	  temporary, or more generally is simply an aggregate type, because the
! 	  gimplifier would create the temporary in the outermost scope instead
! 	  of locally.
  
         3. There is a target and it is a slice or an array with fixed size,
  	  and the return type has variable size, because the gimplifier
--- 4302,4316 ----
  	  because we need to preserve the return value before copying back the
  	  parameters.
  
!        2. There is no target and the call is made for neither an object, nor a
! 	  renaming declaration, nor a return statement, nor an allocator, and
! 	  the return type has variable size because in this case the gimplifier
! 	  cannot create the temporary, or more generally is an aggregate type,
! 	  because the gimplifier would create the temporary in the outermost
! 	  scope instead of locally.  But there is an exception for an allocator
! 	  of an unconstrained record type with default discriminant because we
! 	  allocate the actual size in this case, unlike the other 3 cases, so
! 	  we need a temporary to fetch the discriminant and we create it here.
  
         3. There is a target and it is a slice or an array with fixed size,
  	  and the return type has variable size, because the gimplifier
*************** Call_to_gnu (Node_Id gnat_node, tree *gn
*** 4326,4331 ****
--- 4329,4337 ----
  	      && Nkind (Parent (gnat_node)) != N_Object_Declaration
  	      && Nkind (Parent (gnat_node)) != N_Object_Renaming_Declaration
  	      && Nkind (Parent (gnat_node)) != N_Simple_Return_Statement
+ 	      && (!(Nkind (Parent (gnat_node)) == N_Qualified_Expression
+ 		    && Nkind (Parent (Parent (gnat_node))) == N_Allocator)
+ 		  || type_is_padding_self_referential (gnu_result_type))
  	      && AGGREGATE_TYPE_P (gnu_result_type)
  	      && !TYPE_IS_FAT_POINTER_P (gnu_result_type))
  	  || (gnu_target
*************** convert_with_check (Entity_Id gnat_type,
*** 9213,9219 ****
  	  ? tree_int_cst_lt (gnu_out_ub, gnu_in_ub)
  	  : (FLOAT_TYPE_P (gnu_base_type)
  	     ? real_less (&TREE_REAL_CST (gnu_out_ub),
! 			  &TREE_REAL_CST (gnu_in_lb))
  	     : 1))
  	gnu_cond
  	  = build_binary_op (TRUTH_ORIF_EXPR, boolean_type_node, gnu_cond,
--- 9219,9225 ----
  	  ? tree_int_cst_lt (gnu_out_ub, gnu_in_ub)
  	  : (FLOAT_TYPE_P (gnu_base_type)
  	     ? real_less (&TREE_REAL_CST (gnu_out_ub),
! 			  &TREE_REAL_CST (gnu_in_ub))
  	     : 1))
  	gnu_cond
  	  = build_binary_op (TRUTH_ORIF_EXPR, boolean_type_node, gnu_cond,
*************** pos_to_constructor (Node_Id gnat_expr, t
*** 9649,9655 ****
  				       gnat_component_type);
        else
  	{
! 	  gnu_expr = gnat_to_gnu (gnat_expr);
  
  	  /* Before assigning the element to the array, make sure it is
  	     in range.  */
--- 9655,9668 ----
  				       gnat_component_type);
        else
  	{
! 	  /* If the expression is a conversion to an unconstrained array type,
! 	     skip it to avoid spilling to memory.  */
! 	  if (Nkind (gnat_expr) == N_Type_Conversion
! 	      && Is_Array_Type (Etype (gnat_expr))
! 	      && !Is_Constrained (Etype (gnat_expr)))
! 	    gnu_expr = gnat_to_gnu (Expression (gnat_expr));
! 	  else
! 	    gnu_expr = gnat_to_gnu (gnat_expr);
  
  	  /* Before assigning the element to the array, make sure it is
  	     in range.  */
diff -Nrcpad gcc-6.4.0/gcc/ada/gcc-interface/utils.c gcc-6.5.0/gcc/ada/gcc-interface/utils.c
*** gcc-6.4.0/gcc/ada/gcc-interface/utils.c	Fri Feb 24 10:49:05 2017
--- gcc-6.5.0/gcc/ada/gcc-interface/utils.c	Fri Nov 10 08:24:40 2017
*************** convert (tree type, tree expr)
*** 4642,4647 ****
--- 4642,4648 ----
        return fold (convert_to_real (type, expr));
  
      case RECORD_TYPE:
+       /* Do a normal conversion between scalar and justified modular type.  */
        if (TYPE_JUSTIFIED_MODULAR_P (type) && !AGGREGATE_TYPE_P (etype))
  	{
  	  vec<constructor_elt, va_gc> *v;
*************** convert (tree type, tree expr)
*** 4653,4661 ****
  	  return gnat_build_constructor (type, v);
  	}
  
!       /* ... fall through ... */
  
      case ARRAY_TYPE:
        /* In these cases, assume the front-end has validated the conversion.
  	 If the conversion is valid, it will be a bit-wise conversion, so
  	 it can be viewed as an unchecked conversion.  */
--- 4654,4680 ----
  	  return gnat_build_constructor (type, v);
  	}
  
!       /* In these cases, assume the front-end has validated the conversion.
! 	 If the conversion is valid, it will be a bit-wise conversion, so
! 	 it can be viewed as an unchecked conversion.  */
!       return unchecked_convert (type, expr, false);
  
      case ARRAY_TYPE:
+       /* Do a normal conversion between unconstrained and constrained array
+ 	 type, assuming the latter is a constrained version of the former.  */
+       if (TREE_CODE (expr) == INDIRECT_REF
+ 	  && ecode == ARRAY_TYPE
+ 	  && TREE_TYPE (etype) == TREE_TYPE (type))
+ 	{
+ 	  tree ptr_type = build_pointer_type (type);
+ 	  tree t = build_unary_op (INDIRECT_REF, NULL_TREE,
+ 				   fold_convert (ptr_type,
+ 						 TREE_OPERAND (expr, 0)));
+ 	  TREE_READONLY (t) = TREE_READONLY (expr);
+ 	  TREE_THIS_NOTRAP (t) = TREE_THIS_NOTRAP (expr);
+ 	  return t;
+ 	}
+ 
        /* In these cases, assume the front-end has validated the conversion.
  	 If the conversion is valid, it will be a bit-wise conversion, so
  	 it can be viewed as an unchecked conversion.  */
*************** unchecked_convert (tree type, tree expr,
*** 5207,5226 ****
        && !(code == INTEGER_TYPE && TYPE_BIASED_REPRESENTATION_P (type))
        && !(TYPE_UNSIGNED (type) && TYPE_UNSIGNED (etype)))
      {
!       tree base_type
! 	= gnat_type_for_size (TREE_INT_CST_LOW (TYPE_SIZE (type)),
! 			      TYPE_UNSIGNED (type));
!       tree shift_expr
! 	= convert (base_type,
! 		   size_binop (MINUS_EXPR,
! 			       TYPE_SIZE (type), TYPE_RM_SIZE (type)));
!       expr
! 	= convert (type,
! 		   build_binary_op (RSHIFT_EXPR, base_type,
! 				    build_binary_op (LSHIFT_EXPR, base_type,
! 						     convert (base_type, expr),
! 						     shift_expr),
! 				    shift_expr));
      }
  
    /* An unchecked conversion should never raise Constraint_Error.  The code
--- 5226,5251 ----
        && !(code == INTEGER_TYPE && TYPE_BIASED_REPRESENTATION_P (type))
        && !(TYPE_UNSIGNED (type) && TYPE_UNSIGNED (etype)))
      {
!       if (integer_zerop (TYPE_RM_SIZE (type)))
! 	expr = build_int_cst (type, 0);
!       else
! 	{
! 	  tree base_type
! 	    = gnat_type_for_size (TREE_INT_CST_LOW (TYPE_SIZE (type)),
! 				  TYPE_UNSIGNED (type));
! 	  tree shift_expr
! 	    = convert (base_type,
! 		       size_binop (MINUS_EXPR,
! 				   TYPE_SIZE (type), TYPE_RM_SIZE (type)));
! 	  expr
! 	    = convert (type,
! 		       build_binary_op (RSHIFT_EXPR, base_type,
! 				        build_binary_op (LSHIFT_EXPR, base_type,
! 							 convert (base_type,
! 								  expr),
! 							 shift_expr),
! 				        shift_expr));
! 	}
      }
  
    /* An unchecked conversion should never raise Constraint_Error.  The code
diff -Nrcpad gcc-6.4.0/gcc/alias.c gcc-6.5.0/gcc/alias.c
*** gcc-6.4.0/gcc/alias.c	Tue May  9 12:27:24 2017
--- gcc-6.5.0/gcc/alias.c	Mon Jun 25 17:37:40 2018
*************** write_dependence_p (const_rtx mem,
*** 2978,2984 ****
    int ret;
  
    gcc_checking_assert (x_canonicalized
! 		       ? (x_addr != NULL_RTX && x_mode != VOIDmode)
  		       : (x_addr == NULL_RTX && x_mode == VOIDmode));
  
    if (MEM_VOLATILE_P (x) && MEM_VOLATILE_P (mem))
--- 2978,2985 ----
    int ret;
  
    gcc_checking_assert (x_canonicalized
! 		       ? (x_addr != NULL_RTX
! 			  && (x_mode != VOIDmode || GET_MODE (x) == VOIDmode))
  		       : (x_addr == NULL_RTX && x_mode == VOIDmode));
  
    if (MEM_VOLATILE_P (x) && MEM_VOLATILE_P (mem))
diff -Nrcpad gcc-6.4.0/gcc/asan.c gcc-6.5.0/gcc/asan.c
*** gcc-6.4.0/gcc/asan.c	Fri May  5 21:45:42 2017
--- gcc-6.5.0/gcc/asan.c	Fri Sep 15 12:15:52 2017
*************** instrument_derefs (gimple_stmt_iterator
*** 1800,1805 ****
--- 1800,1808 ----
        || bitsize != size_in_bytes * BITS_PER_UNIT)
      return;
  
+   if (TREE_CODE (inner) == VAR_DECL && DECL_HARD_REGISTER (inner))
+     return;
+ 
    if (TREE_CODE (inner) == VAR_DECL
        && offset == NULL_TREE
        && bitpos >= 0
diff -Nrcpad gcc-6.4.0/gcc/bb-reorder.c gcc-6.5.0/gcc/bb-reorder.c
*** gcc-6.4.0/gcc/bb-reorder.c	Wed Feb 17 14:57:58 2016
--- gcc-6.5.0/gcc/bb-reorder.c	Mon Jun 25 17:05:01 2018
*************** reorder_basic_blocks_simple (void)
*** 2402,2408 ****
  
    basic_block last_tail = (basic_block) ENTRY_BLOCK_PTR_FOR_FN (cfun)->aux;
  
!   int current_partition = BB_PARTITION (last_tail);
    bool need_another_pass = true;
  
    for (int pass = 0; pass < 2 && need_another_pass; pass++)
--- 2402,2411 ----
  
    basic_block last_tail = (basic_block) ENTRY_BLOCK_PTR_FOR_FN (cfun)->aux;
  
!   int current_partition
!     = BB_PARTITION (last_tail == ENTRY_BLOCK_PTR_FOR_FN (cfun)
! 		    ? EDGE_SUCC (ENTRY_BLOCK_PTR_FOR_FN (cfun), 0)->dest
! 		    : last_tail);
    bool need_another_pass = true;
  
    for (int pass = 0; pass < 2 && need_another_pass; pass++)
*************** reorder_basic_blocks_simple (void)
*** 2443,2449 ****
      {
        force_nonfallthru (e);
        e->src->aux = ENTRY_BLOCK_PTR_FOR_FN (cfun)->aux;
-       BB_COPY_PARTITION (e->src, e->dest);
      }
  }
  
--- 2446,2451 ----
*************** pass_partition_blocks::execute (function
*** 2905,2911 ****
  
    crossing_edges = find_rarely_executed_basic_blocks_and_crossing_edges ();
    if (!crossing_edges.exists ())
!     return 0;
  
    crtl->has_bb_partition = true;
  
--- 2907,2914 ----
  
    crossing_edges = find_rarely_executed_basic_blocks_and_crossing_edges ();
    if (!crossing_edges.exists ())
!     /* Make sure to process deferred rescans and clear changeable df flags.  */
!     return TODO_df_finish;
  
    crtl->has_bb_partition = true;
  
*************** pass_partition_blocks::execute (function
*** 2971,2977 ****
        df_analyze ();
      }
  
!   return 0;
  }
  
  } // anon namespace
--- 2974,2981 ----
        df_analyze ();
      }
  
!   /* Make sure to process deferred rescans and clear changeable df flags.  */
!   return TODO_df_finish;
  }
  
  } // anon namespace
diff -Nrcpad gcc-6.4.0/gcc/builtins.c gcc-6.5.0/gcc/builtins.c
*** gcc-6.4.0/gcc/builtins.c	Tue Jun 27 17:11:01 2017
--- gcc-6.5.0/gcc/builtins.c	Mon Jun 25 17:35:29 2018
*************** fold_builtin_strpbrk (location_t loc, tr
*** 8794,8800 ****
        if (p2[0] == '\0')
  	/* strpbrk(x, "") == NULL.
  	   Evaluate and ignore s1 in case it had side-effects.  */
! 	return omit_one_operand_loc (loc, TREE_TYPE (s1), integer_zero_node, s1);
  
        if (p2[1] != '\0')
  	return NULL_TREE;  /* Really call strpbrk.  */
--- 8794,8800 ----
        if (p2[0] == '\0')
  	/* strpbrk(x, "") == NULL.
  	   Evaluate and ignore s1 in case it had side-effects.  */
! 	return omit_one_operand_loc (loc, type, integer_zero_node, s1);
  
        if (p2[1] != '\0')
  	return NULL_TREE;  /* Really call strpbrk.  */
diff -Nrcpad gcc-6.4.0/gcc/c/ChangeLog gcc-6.5.0/gcc/c/ChangeLog
*** gcc-6.4.0/gcc/c/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/c/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,32 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-12-22  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/83550
+ 	* c-decl.c (finish_struct): Set DECL_SOURCE_LOCATION on
+ 	TYPE_STUB_DECL and call rest_of_type_compilation before processing
+ 	incomplete vars rather than after it.
+ 
+ 	2017-09-29  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/82340
+ 	* c-decl.c (build_compound_literal): Use c_apply_type_quals_to_decl
+ 	instead of trying to set just TREE_READONLY manually.
+ 
+ 2017-12-10  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	backport from trunk:
+ 	PR c/81875
+ 	2017-09-16  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	* c-parser.c (c_parser_omp_for_loop): Fold only operands of cond, not
+ 	cond itself.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/c/c-decl.c gcc-6.5.0/gcc/c/c-decl.c
*** gcc-6.4.0/gcc/c/c-decl.c	Wed Dec 21 12:52:06 2016
--- gcc-6.5.0/gcc/c/c-decl.c	Mon Jun 25 17:08:02 2018
*************** build_compound_literal (location_t loc,
*** 5092,5100 ****
    TREE_USED (decl) = 1;
    DECL_READ_P (decl) = 1;
    TREE_TYPE (decl) = type;
!   TREE_READONLY (decl) = (TYPE_READONLY (type)
! 			  || (TREE_CODE (type) == ARRAY_TYPE
! 			      && TYPE_READONLY (TREE_TYPE (type))));
    store_init_value (loc, decl, init, NULL_TREE);
  
    if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
--- 5092,5098 ----
    TREE_USED (decl) = 1;
    DECL_READ_P (decl) = 1;
    TREE_TYPE (decl) = type;
!   c_apply_type_quals_to_decl (TYPE_QUALS (strip_array_types (type)), decl);
    store_init_value (loc, decl, init, NULL_TREE);
  
    if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
*************** finish_struct (location_t loc, tree t, t
*** 7914,7919 ****
--- 7912,7925 ----
        warning_at (loc, 0, "union cannot be made transparent");
      }
  
+   /* Update type location to the one of the definition, instead of e.g.
+      a forward declaration.  */
+   if (TYPE_STUB_DECL (t))
+     DECL_SOURCE_LOCATION (TYPE_STUB_DECL (t)) = loc;
+ 
+   /* Finish debugging output for this type.  */
+   rest_of_type_compilation (t, toplevel);
+ 
    /* If this structure or union completes the type of any previous
       variable declaration, lay it out and output its rtl.  */
    for (x = incomplete_vars; x; x = TREE_CHAIN (x))
*************** finish_struct (location_t loc, tree t, t
*** 7930,7943 ****
  	}
      }
  
-   /* Update type location to the one of the definition, instead of e.g.
-      a forward declaration.  */
-   if (TYPE_STUB_DECL (t))
-     DECL_SOURCE_LOCATION (TYPE_STUB_DECL (t)) = loc;
- 
-   /* Finish debugging output for this type.  */
-   rest_of_type_compilation (t, toplevel);
- 
    /* If we're inside a function proper, i.e. not file-scope and not still
       parsing parameters, then arrange for the size of a variable sized type
       to be bound now.  */
--- 7936,7941 ----
diff -Nrcpad gcc-6.4.0/gcc/c/c-parser.c gcc-6.5.0/gcc/c/c-parser.c
*** gcc-6.4.0/gcc/c/c-parser.c	Fri May  5 21:23:09 2017
--- gcc-6.5.0/gcc/c/c-parser.c	Sun Dec 10 21:37:08 2017
*************** c_parser_omp_for_loop (location_t loc, c
*** 14767,14773 ****
  
  	  cond = cond_expr.value;
  	  cond = c_objc_common_truthvalue_conversion (cond_loc, cond);
! 	  cond = c_fully_fold (cond, false, NULL);
  	  switch (cond_expr.original_code)
  	    {
  	    case GT_EXPR:
--- 14767,14780 ----
  
  	  cond = cond_expr.value;
  	  cond = c_objc_common_truthvalue_conversion (cond_loc, cond);
! 	  if (COMPARISON_CLASS_P (cond))
! 	    {
! 	      tree op0 = TREE_OPERAND (cond, 0), op1 = TREE_OPERAND (cond, 1);
! 	      op0 = c_fully_fold (op0, false, NULL);
! 	      op1 = c_fully_fold (op1, false, NULL);
! 	      TREE_OPERAND (cond, 0) = op0;
! 	      TREE_OPERAND (cond, 1) = op1;
! 	    }
  	  switch (cond_expr.original_code)
  	    {
  	    case GT_EXPR:
diff -Nrcpad gcc-6.4.0/gcc/c-family/ChangeLog gcc-6.5.0/gcc/c-family/ChangeLog
*** gcc-6.4.0/gcc/c-family/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/c-family/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,79 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-06-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/86210
+ 	* c-common.c (check_nonnull_arg): Use fold_for_warn.  Adjust obsolete
+ 	comment.
+ 
+ 	2017-11-21  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/83059
+ 	* c-common.c (get_atomic_generic_size): Use TREE_INT_CST_LOW
+ 	instead of tree_to_uhwi, formatting fix.
+ 
+ 2018-06-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-03-16  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR c/84873
+ 	* c-gimplify.c (c_gimplify_expr): Revert previous change.  Instead
+ 	unshare the possibly folded expression.
+  
+ 	2018-03-15  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR c/84873
+ 	* c-gimplify.c (c_gimplify_expr): Do not fold expressions.
+ 
+ 2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-09-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82112
+ 	* c-common.c (sync_resolve_size): Instead of c_dialect_cxx ()
+ 	assertion check that in the condition.
+ 	(get_atomic_generic_size): Likewise.  Before testing if parameter
+ 	has pointer type, if it has array type, call for C++
+ 	default_conversion to perform array-to-pointer conversion.
+ 
+ 	2017-07-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/45784
+ 	* c-omp.c (c_finish_omp_for): If the condition is wrapped in
+ 	rhs of COMPOUND_EXPR(s), skip them and readd their lhs into
+ 	new COMPOUND_EXPRs around the rhs of the comparison.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-29  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR other/39851
+ 	* c-common.c (parse_optimize_options): Add argument to function
+ 	call.
+ 	* c-pragma.c (handle_pragma_diagnostic): Likewise.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-06-28  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR ipa/81128
+ 	* c-attribs.c (handle_alias_ifunc_attribute): Append ifunc alias
+ 	to a function declaration.
+ 
+ 2017-09-10  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR c++/81852
+ 	* c-cppbuiltin.c (c_cpp_builtins): Define __cpp_threadsafe_static_init.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/c-family/c-common.c gcc-6.5.0/gcc/c-family/c-common.c
*** gcc-6.4.0/gcc/c-family/c-common.c	Fri May  5 21:28:09 2017
--- gcc-6.5.0/gcc/c-family/c-common.c	Mon Jun 25 17:54:30 2018
*************** handle_alias_ifunc_attribute (bool is_al
*** 7989,7997 ****
  	TREE_STATIC (decl) = 1;
  
        if (!is_alias)
! 	/* ifuncs are also aliases, so set that attribute too. */
! 	DECL_ATTRIBUTES (decl)
! 	  = tree_cons (get_identifier ("alias"), args, DECL_ATTRIBUTES (decl));
      }
    else
      {
--- 7989,8002 ----
  	TREE_STATIC (decl) = 1;
  
        if (!is_alias)
! 	{
! 	  /* ifuncs are also aliases, so set that attribute too.  */
! 	  DECL_ATTRIBUTES (decl)
! 	    = tree_cons (get_identifier ("alias"), args,
! 			 DECL_ATTRIBUTES (decl));
! 	  DECL_ATTRIBUTES (decl) = tree_cons (get_identifier ("ifunc"),
! 					      NULL, DECL_ATTRIBUTES (decl));
! 	}
      }
    else
      {
*************** check_nonnull_arg (void *ctx, tree param
*** 9244,9250 ****
    if (TREE_CODE (TREE_TYPE (param)) != POINTER_TYPE)
      return;
  
!   if (integer_zerop (param))
      warning_at (*ploc, OPT_Wnonnull, "null argument where non-null required "
  		"(argument %lu)", (unsigned long) param_num);
  }
--- 9249,9255 ----
    if (TREE_CODE (TREE_TYPE (param)) != POINTER_TYPE)
      return;
  
!   if (integer_zerop (fold_for_warn (param)))
      warning_at (*ploc, OPT_Wnonnull, "null argument where non-null required "
  		"(argument %lu)", (unsigned long) param_num);
  }
*************** parse_optimize_options (tree args, bool
*** 9583,9589 ****
  						&decoded_options_count);
    decode_options (&global_options, &global_options_set,
  		  decoded_options, decoded_options_count,
! 		  input_location, global_dc);
  
    targetm.override_options_after_change();
  
--- 9588,9594 ----
  						&decoded_options_count);
    decode_options (&global_options, &global_options_set,
  		  decoded_options, decoded_options_count,
! 		  input_location, global_dc, NULL);
  
    targetm.override_options_after_change();
  
*************** sync_resolve_size (tree function, vec<tr
*** 10725,10734 ****
      }
  
    argtype = type = TREE_TYPE ((*params)[0]);
!   if (TREE_CODE (type) == ARRAY_TYPE)
      {
        /* Force array-to-pointer decay for C++.  */
-       gcc_assert (c_dialect_cxx());
        (*params)[0] = default_conversion ((*params)[0]);
        type = TREE_TYPE ((*params)[0]);
      }
--- 10730,10738 ----
      }
  
    argtype = type = TREE_TYPE ((*params)[0]);
!   if (TREE_CODE (type) == ARRAY_TYPE && c_dialect_cxx ())
      {
        /* Force array-to-pointer decay for C++.  */
        (*params)[0] = default_conversion ((*params)[0]);
        type = TREE_TYPE ((*params)[0]);
      }
*************** get_atomic_generic_size (location_t loc,
*** 10890,10899 ****
  
    /* Get type of first parameter, and determine its size.  */
    type_0 = TREE_TYPE ((*params)[0]);
!   if (TREE_CODE (type_0) == ARRAY_TYPE)
      {
        /* Force array-to-pointer decay for C++.  */
-       gcc_assert (c_dialect_cxx());
        (*params)[0] = default_conversion ((*params)[0]);
        type_0 = TREE_TYPE ((*params)[0]);
      }
--- 10894,10902 ----
  
    /* Get type of first parameter, and determine its size.  */
    type_0 = TREE_TYPE ((*params)[0]);
!   if (TREE_CODE (type_0) == ARRAY_TYPE && c_dialect_cxx ())
      {
        /* Force array-to-pointer decay for C++.  */
        (*params)[0] = default_conversion ((*params)[0]);
        type_0 = TREE_TYPE ((*params)[0]);
      }
*************** get_atomic_generic_size (location_t loc,
*** 10932,10937 ****
--- 10935,10946 ----
        /* __atomic_compare_exchange has a bool in the 4th position, skip it.  */
        if (n_param == 6 && x == 3)
          continue;
+       if (TREE_CODE (type) == ARRAY_TYPE && c_dialect_cxx ())
+ 	{
+ 	  /* Force array-to-pointer decay for C++.  */
+ 	  (*params)[x] = default_conversion ((*params)[x]);
+ 	  type = TREE_TYPE ((*params)[x]);
+ 	}
        if (!POINTER_TYPE_P (type))
  	{
  	  error_at (loc, "argument %d of %qE must be a pointer type", x + 1,
*************** get_atomic_generic_size (location_t loc,
*** 10954,10966 ****
        tree p = (*params)[x];
        if (TREE_CODE (p) == INTEGER_CST)
          {
! 	  int i = tree_to_uhwi (p);
! 	  if (i < 0 || (memmodel_base (i) >= MEMMODEL_LAST))
! 	    {
! 	      warning_at (loc, OPT_Winvalid_memory_model,
! 			  "invalid memory model argument %d of %qE", x + 1,
! 			  function);
! 	    }
  	}
        else
  	if (!INTEGRAL_TYPE_P (TREE_TYPE (p)))
--- 10963,10976 ----
        tree p = (*params)[x];
        if (TREE_CODE (p) == INTEGER_CST)
          {
! 	  /* memmodel_base masks the low 16 bits, thus ignore any bits above
! 	     it by using TREE_INT_CST_LOW instead of tree_to_*hwi.  Those high
! 	     bits will be checked later during expansion in target specific
! 	     way.  */
! 	  if (memmodel_base (TREE_INT_CST_LOW (p)) >= MEMMODEL_LAST)
! 	    warning_at (loc, OPT_Winvalid_memory_model,
! 			"invalid memory model argument %d of %qE", x + 1,
! 			function);
  	}
        else
  	if (!INTEGRAL_TYPE_P (TREE_TYPE (p)))
diff -Nrcpad gcc-6.4.0/gcc/c-family/c-cppbuiltin.c gcc-6.5.0/gcc/c-family/c-cppbuiltin.c
*** gcc-6.4.0/gcc/c-family/c-cppbuiltin.c	Tue Jul  5 17:55:36 2016
--- gcc-6.5.0/gcc/c-family/c-cppbuiltin.c	Sun Sep 10 09:05:31 2017
*************** c_cpp_builtins (cpp_reader *pfile)
*** 891,896 ****
--- 891,898 ----
  	cpp_define (pfile, "__cpp_transactional_memory=210500");
        if (flag_sized_deallocation)
  	cpp_define (pfile, "__cpp_sized_deallocation=201309");
+       if (flag_threadsafe_statics)
+ 	cpp_define (pfile, "__cpp_threadsafe_static_init=200806");
      }
    /* Note that we define this for C as well, so that we know if
       __attribute__((cleanup)) will interface with EH.  */
diff -Nrcpad gcc-6.4.0/gcc/c-family/c-gimplify.c gcc-6.5.0/gcc/c-family/c-gimplify.c
*** gcc-6.4.0/gcc/c-family/c-gimplify.c	Mon Jun 13 21:08:36 2016
--- gcc-6.5.0/gcc/c-family/c-gimplify.c	Wed Jun 20 13:10:21 2018
*************** c_gimplify_expr (tree *expr_p, gimple_se
*** 240,246 ****
  				    unsigned_type_node)
  	    && !types_compatible_p (TYPE_MAIN_VARIANT (TREE_TYPE (*op1_p)),
  				    integer_type_node))
! 	  *op1_p = convert (unsigned_type_node, *op1_p);
  	break;
        }
  
--- 240,248 ----
  				    unsigned_type_node)
  	    && !types_compatible_p (TYPE_MAIN_VARIANT (TREE_TYPE (*op1_p)),
  				    integer_type_node))
! 	  /* Make sure to unshare the result, tree sharing is invalid
! 	     during gimplification.  */
! 	  *op1_p = unshare_expr (convert (unsigned_type_node, *op1_p));
  	break;
        }
  
diff -Nrcpad gcc-6.4.0/gcc/c-family/c-omp.c gcc-6.5.0/gcc/c-family/c-omp.c
*** gcc-6.4.0/gcc/c-family/c-omp.c	Mon May 30 21:40:04 2016
--- gcc-6.5.0/gcc/c-family/c-omp.c	Fri Sep 15 21:33:08 2017
*************** c_finish_omp_for (location_t locus, enum
*** 518,523 ****
--- 518,529 ----
  	{
  	  bool cond_ok = false;
  
+ 	  /* E.g. C sizeof (vla) could add COMPOUND_EXPRs with
+ 	     evaluation of the vla VAR_DECL.  We need to readd
+ 	     them to the non-decl operand.  See PR45784.  */
+ 	  while (TREE_CODE (cond) == COMPOUND_EXPR)
+ 	    cond = TREE_OPERAND (cond, 1);
+ 
  	  if (EXPR_HAS_LOCATION (cond))
  	    elocus = EXPR_LOCATION (cond);
  
*************** c_finish_omp_for (location_t locus, enum
*** 592,597 ****
--- 598,618 ----
  		  else if (code != CILK_SIMD && code != CILK_FOR)
  		    cond_ok = false;
  		}
+ 
+ 	      if (cond_ok && TREE_VEC_ELT (condv, i) != cond)
+ 		{
+ 		  tree ce = NULL_TREE, *pce = &ce;
+ 		  tree type = TREE_TYPE (TREE_OPERAND (cond, 1));
+ 		  for (tree c = TREE_VEC_ELT (condv, i); c != cond;
+ 		       c = TREE_OPERAND (c, 1))
+ 		    {
+ 		      *pce = build2 (COMPOUND_EXPR, type, TREE_OPERAND (c, 0),
+ 				     TREE_OPERAND (cond, 1));
+ 		      pce = &TREE_OPERAND (*pce, 1);
+ 		    }
+ 		  TREE_OPERAND (cond, 1) = ce;
+ 		  TREE_VEC_ELT (condv, i) = cond;
+ 		}
  	    }
  
  	  if (!cond_ok)
diff -Nrcpad gcc-6.4.0/gcc/c-family/c-pragma.c gcc-6.5.0/gcc/c-family/c-pragma.c
*** gcc-6.4.0/gcc/c-family/c-pragma.c	Fri Feb 19 22:12:54 2016
--- gcc-6.5.0/gcc/c-family/c-pragma.c	Fri Sep 15 09:19:36 2017
*************** handle_pragma_diagnostic(cpp_reader *ARG
*** 813,819 ****
      }
  
    struct cl_option_handlers handlers;
!   set_default_handlers (&handlers);
    const char *arg = NULL;
    if (cl_options[option_index].flags & CL_JOINED)
      arg = option_string + 1 + cl_options[option_index].opt_len;
--- 813,819 ----
      }
  
    struct cl_option_handlers handlers;
!   set_default_handlers (&handlers, NULL);
    const char *arg = NULL;
    if (cl_options[option_index].flags & CL_JOINED)
      arg = option_string + 1 + cl_options[option_index].opt_len;
diff -Nrcpad gcc-6.4.0/gcc/calls.c gcc-6.5.0/gcc/calls.c
*** gcc-6.4.0/gcc/calls.c	Tue Feb 14 08:05:38 2017
--- gcc-6.5.0/gcc/calls.c	Mon Jun 25 17:32:55 2018
*************** expand_call (tree exp, rtx target, int i
*** 2557,2565 ****
  	if (CALL_EXPR_RETURN_SLOT_OPT (exp)
  	    && target
  	    && MEM_P (target)
! 	    && !(MEM_ALIGN (target) < TYPE_ALIGN (rettype)
! 		 && SLOW_UNALIGNED_ACCESS (TYPE_MODE (rettype),
! 					   MEM_ALIGN (target))))
  	  structure_value_addr = XEXP (target, 0);
  	else
  	  {
--- 2557,2570 ----
  	if (CALL_EXPR_RETURN_SLOT_OPT (exp)
  	    && target
  	    && MEM_P (target)
! 	    /* If rettype is addressable, we may not create a temporary.
! 	       If target is properly aligned at runtime and the compiler
! 	       just doesn't know about it, it will work fine, otherwise it
! 	       will be UB.  */
! 	    && (TREE_ADDRESSABLE (rettype)
! 		|| !(MEM_ALIGN (target) < TYPE_ALIGN (rettype)
! 		     && SLOW_UNALIGNED_ACCESS (TYPE_MODE (rettype),
! 					       MEM_ALIGN (target)))))
  	  structure_value_addr = XEXP (target, 0);
  	else
  	  {
diff -Nrcpad gcc-6.4.0/gcc/cfgexpand.c gcc-6.5.0/gcc/cfgexpand.c
*** gcc-6.4.0/gcc/cfgexpand.c	Wed Apr 27 12:23:50 2016
--- gcc-6.5.0/gcc/cfgexpand.c	Mon Jun 25 17:51:44 2018
*************** expand_asm_stmt (gasm *stmt)
*** 2974,2987 ****
  
        generating_concat_p = 0;
  
!       if ((TREE_CODE (val) == INDIRECT_REF
! 	   && allows_mem)
  	  || (DECL_P (val)
  	      && (allows_mem || REG_P (DECL_RTL (val)))
  	      && ! (REG_P (DECL_RTL (val))
  		    && GET_MODE (DECL_RTL (val)) != TYPE_MODE (type)))
  	  || ! allows_reg
! 	  || is_inout)
  	{
  	  op = expand_expr (val, NULL_RTX, VOIDmode,
  			    !allows_reg ? EXPAND_MEMORY : EXPAND_WRITE);
--- 2974,2987 ----
  
        generating_concat_p = 0;
  
!       if ((TREE_CODE (val) == INDIRECT_REF && allows_mem)
  	  || (DECL_P (val)
  	      && (allows_mem || REG_P (DECL_RTL (val)))
  	      && ! (REG_P (DECL_RTL (val))
  		    && GET_MODE (DECL_RTL (val)) != TYPE_MODE (type)))
  	  || ! allows_reg
! 	  || is_inout
! 	  || TREE_ADDRESSABLE (type))
  	{
  	  op = expand_expr (val, NULL_RTX, VOIDmode,
  			    !allows_reg ? EXPAND_MEMORY : EXPAND_WRITE);
*************** expand_asm_stmt (gasm *stmt)
*** 2990,2996 ****
  
  	  if (! allows_reg && !MEM_P (op))
  	    error ("output number %d not directly addressable", i);
! 	  if ((! allows_mem && MEM_P (op))
  	      || GET_CODE (op) == CONCAT)
  	    {
  	      rtx old_op = op;
--- 2990,2996 ----
  
  	  if (! allows_reg && !MEM_P (op))
  	    error ("output number %d not directly addressable", i);
! 	  if ((! allows_mem && MEM_P (op) && GET_MODE (op) != BLKmode)
  	      || GET_CODE (op) == CONCAT)
  	    {
  	      rtx old_op = op;
diff -Nrcpad gcc-6.4.0/gcc/cfgrtl.c gcc-6.5.0/gcc/cfgrtl.c
*** gcc-6.4.0/gcc/cfgrtl.c	Tue Jul 19 19:55:54 2016
--- gcc-6.5.0/gcc/cfgrtl.c	Mon Jun 25 17:05:01 2018
*************** force_nonfallthru_and_redirect (edge e,
*** 1541,1546 ****
--- 1541,1549 ----
  	  basic_block bb = create_basic_block (BB_HEAD (e->dest), NULL,
  					       ENTRY_BLOCK_PTR_FOR_FN (cfun));
  
+ 	  /* Make sure new block ends up in correct hot/cold section.  */
+ 	  BB_COPY_PARTITION (bb, e->dest);
+ 
  	  /* Change the existing edge's source to be the new block, and add
  	     a new edge from the entry block to the new block.  */
  	  e->src = bb;
diff -Nrcpad gcc-6.4.0/gcc/cgraph.c gcc-6.5.0/gcc/cgraph.c
*** gcc-6.4.0/gcc/cgraph.c	Fri May 26 11:29:35 2017
--- gcc-6.5.0/gcc/cgraph.c	Mon Dec 11 09:49:25 2017
*************** cgraph_edge::redirect_call_stmt_to_calle
*** 1259,1265 ****
    cgraph_edge *e = this;
  
    tree decl = gimple_call_fndecl (e->call_stmt);
-   tree lhs = gimple_call_lhs (e->call_stmt);
    gcall *new_stmt;
    gimple_stmt_iterator gsi;
    bool skip_bounds = false;
--- 1259,1264 ----
*************** cgraph_edge::redirect_call_stmt_to_calle
*** 1529,1534 ****
--- 1528,1534 ----
      gimple_call_set_fntype (new_stmt, TREE_TYPE (e->callee->decl));
  
    /* If the call becomes noreturn, remove the LHS if possible.  */
+   tree lhs = gimple_call_lhs (new_stmt);
    if (lhs
        && (gimple_call_flags (new_stmt) & ECF_NORETURN)
        && (VOID_TYPE_P (TREE_TYPE (gimple_call_fntype (new_stmt)))
diff -Nrcpad gcc-6.4.0/gcc/cgraph.h gcc-6.5.0/gcc/cgraph.h
*** gcc-6.4.0/gcc/cgraph.h	Tue Apr 11 13:23:48 2017
--- gcc-6.5.0/gcc/cgraph.h	Wed Mar  7 09:45:44 2018
*************** public:
*** 315,320 ****
--- 315,323 ----
       or abstract function kept for debug info purposes only.  */
    bool real_symbol_p (void);
  
+   /* Return true when the symbol needs to be output to the LTO symbol table.  */
+   bool output_to_lto_symbol_table_p (void);
+ 
    /* Determine if symbol declaration is needed.  That is, visible to something
       either outside this translation unit, something magic in the system
       configury. This function is used just during symbol creation.  */
diff -Nrcpad gcc-6.4.0/gcc/collect2.c gcc-6.5.0/gcc/collect2.c
*** gcc-6.4.0/gcc/collect2.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/collect2.c	Sun Jul  1 14:57:03 2018
***************
*** 1,6 ****
  /* Collect static initialization info into data structures that can be
     traversed by C++ initialization and finalization routines.
!    Copyright (C) 1992-2016 Free Software Foundation, Inc.
     Contributed by Chris Smith (csmith@convex.com).
     Heavily modified by Michael Meissner (meissner@cygnus.com),
     Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
--- 1,6 ----
  /* Collect static initialization info into data structures that can be
     traversed by C++ initialization and finalization routines.
!    Copyright (C) 1992-2018 Free Software Foundation, Inc.
     Contributed by Chris Smith (csmith@convex.com).
     Heavily modified by Michael Meissner (meissner@cygnus.com),
     Per Bothner (bothner@cygnus.com), and John Gilmore (gnu@cygnus.com).
*************** static enum lto_mode_d lto_mode = LTO_MO
*** 201,206 ****
--- 201,207 ----
  bool helpflag;			/* true if --help */
  
  static int shared_obj;			/* true if -shared */
+ static int static_obj;			/* true if -static */
  
  static const char *c_file;		/* <xxx>.c for constructor/destructor list.  */
  static const char *o_file;		/* <xxx>.o for constructor/destructor list.  */
*************** bool may_unlink_output_file = false;
*** 255,260 ****
--- 256,262 ----
  #ifdef COLLECT_EXPORT_LIST
  /* Lists to keep libraries to be scanned for global constructors/destructors.  */
  static struct head libs;                    /* list of libraries */
+ static struct head static_libs;             /* list of statically linked libraries */
  static struct path_prefix cmdline_lib_dirs; /* directories specified with -L */
  static struct path_prefix libpath_lib_dirs; /* directories in LIBPATH */
  static struct path_prefix *libpaths[3] = {&cmdline_lib_dirs,
*************** static void write_c_file_glob (FILE *, c
*** 320,328 ****
  static void scan_libraries (const char *);
  #endif
  #ifdef COLLECT_EXPORT_LIST
- #if 0
  static int is_in_list (const char *, struct id *);
- #endif
  static void write_aix_file (FILE *, struct id *);
  static char *resolve_lib_name (const char *);
  #endif
--- 322,328 ----
*************** maybe_run_lto_and_relink (char **lto_ld_
*** 761,767 ****
        do_wait (prog, pex);
        pex = NULL;
  
!       /* Compute memory needed for new LD arguments.  At most number of original arguemtns
  	 plus number of partitions.  */
        for (lto_ld_argv_size = 0; lto_ld_argv[lto_ld_argv_size]; lto_ld_argv_size++)
  	;
--- 761,767 ----
        do_wait (prog, pex);
        pex = NULL;
  
!       /* Compute memory needed for new LD arguments.  At most number of original arguments
  	 plus number of partitions.  */
        for (lto_ld_argv_size = 0; lto_ld_argv[lto_ld_argv_size]; lto_ld_argv_size++)
  	;
*************** main (int argc, char **argv)
*** 911,916 ****
--- 911,919 ----
    int first_file;
    int num_c_args;
    char **old_argv;
+ #ifdef COLLECT_EXPORT_LIST
+   bool is_static = false;
+ #endif
    int i;
  
    for (i = 0; i < USE_LD_MAX; i++)
*************** main (int argc, char **argv)
*** 1241,1246 ****
--- 1244,1251 ----
  	*c_ptr++ = xstrdup (q);
        if (strcmp (q, "-shared") == 0)
  	shared_obj = 1;
+       if (strcmp (q, "-static") == 0)
+ 	static_obj = 1;
        if (*q == '-' && q[1] == 'B')
  	{
  	  *c_ptr++ = xstrdup (q);
*************** main (int argc, char **argv)
*** 1269,1274 ****
--- 1274,1282 ----
    /* Parse arguments.  Remember output file spec, pass the rest to ld.  */
    /* After the first file, put in the c++ rt0.  */
  
+ #ifdef COLLECT_EXPORT_LIST
+   is_static = static_obj;
+ #endif
    first_file = 1;
    while ((arg = *++argv) != (char *) 0)
      {
*************** main (int argc, char **argv)
*** 1374,1379 ****
--- 1382,1399 ----
  #endif
                break;
  
+ #ifdef COLLECT_EXPORT_LIST
+ 	    case 'b':
+ 	      if (!strcmp (arg, "-bstatic"))
+ 		{
+ 		  is_static = true;
+ 		}
+ 	      else if (!strcmp (arg, "-bdynamic") || !strcmp (arg, "-bshared"))
+ 		{
+ 		  is_static = false;
+ 		}
+ 	      break;
+ #endif
  	    case 'l':
  	      if (first_file)
  		{
*************** main (int argc, char **argv)
*** 1390,1395 ****
--- 1410,1417 ----
  
  		/* Saving a full library name.  */
  		add_to_list (&libs, s);
+ 		if (is_static)
+ 		    add_to_list (&static_libs, s);
  	      }
  #endif
  	      break;
*************** main (int argc, char **argv)
*** 1490,1495 ****
--- 1512,1519 ----
  	    {
  	      /* Saving a full library name.  */
  	      add_to_list (&libs, arg);
+ 	      if (is_static)
+ 		add_to_list (&static_libs, arg);
  	    }
  #endif
  	}
*************** main (int argc, char **argv)
*** 1501,1506 ****
--- 1525,1532 ----
      {
        fprintf (stderr, "List of libraries:\n");
        dump_list (stderr, "\t", libs.first);
+       fprintf (stderr, "List of statically linked libraries:\n");
+       dump_list (stderr, "\t", static_libs.first);
      }
  
    /* The AIX linker will discard static constructors in object files if
*************** main (int argc, char **argv)
*** 1525,1533 ****
--- 1551,1561 ----
        this_filter &= ~SCAN_DWEH;
  #endif
  
+     /* Scan object files.  */
      while (export_object_lst < object)
        scan_prog_file (*export_object_lst++, PASS_OBJ, this_filter);
  
+     /* Scan libraries.  */
      for (; list; list = list->next)
        scan_prog_file (list->name, PASS_FIRST, this_filter);
  
*************** write_list (FILE *stream, const char *pr
*** 1975,1981 ****
  
  #ifdef COLLECT_EXPORT_LIST
  /* This function is really used only on AIX, but may be useful.  */
- #if 0
  static int
  is_in_list (const char *prefix, struct id *list)
  {
--- 2003,2008 ----
*************** is_in_list (const char *prefix, struct i
*** 1986,1992 ****
      }
      return 0;
  }
- #endif
  #endif /* COLLECT_EXPORT_LIST */
  
  /* Added for debugging purpose.  */
--- 2013,2018 ----
*************** scan_prog_file (const char *prog_name, s
*** 2815,2821 ****
  			case SYM_AIXI:
  			  if (! (filter & SCAN_CTOR))
  			    break;
! 			  if (is_shared && !aixlazy_flag)
  			    add_to_list (&constructors, name);
  			  break;
  
--- 2841,2852 ----
  			case SYM_AIXI:
  			  if (! (filter & SCAN_CTOR))
  			    break;
! 			  if (is_shared && !aixlazy_flag
! #ifdef COLLECT_EXPORT_LIST
! 			      && ! static_obj
! 			      && ! is_in_list (prog_name, static_libs.first)
! #endif
! 			      )
  			    add_to_list (&constructors, name);
  			  break;
  
diff -Nrcpad gcc-6.4.0/gcc/combine.c gcc-6.5.0/gcc/combine.c
*** gcc-6.4.0/gcc/combine.c	Fri May  5 21:56:08 2017
--- gcc-6.5.0/gcc/combine.c	Fri Oct 12 17:32:38 2018
*************** struct insn_link {
*** 329,336 ****
  
  static struct insn_link **uid_log_links;
  
! #define INSN_COST(INSN)		(uid_insn_cost[INSN_UID (INSN)])
! #define LOG_LINKS(INSN)		(uid_log_links[INSN_UID (INSN)])
  
  #define FOR_EACH_LOG_LINK(L, INSN)				\
    for ((L) = LOG_LINKS (INSN); (L); (L) = (L)->next)
--- 329,344 ----
  
  static struct insn_link **uid_log_links;
  
! static inline int
! insn_uid_check (const_rtx insn)
! {
!   int uid = INSN_UID (insn);
!   gcc_checking_assert (uid <= max_uid_known);
!   return uid;
! }
! 
! #define INSN_COST(INSN)		(uid_insn_cost[insn_uid_check (INSN)])
! #define LOG_LINKS(INSN)		(uid_log_links[insn_uid_check (INSN)])
  
  #define FOR_EACH_LOG_LINK(L, INSN)				\
    for ((L) = LOG_LINKS (INSN); (L); (L) = (L)->next)
*************** find_single_use (rtx dest, rtx_insn *ins
*** 678,684 ****
    for (next = NEXT_INSN (insn);
         next && BLOCK_FOR_INSN (next) == bb;
         next = NEXT_INSN (next))
!     if (INSN_P (next) && dead_or_set_p (next, dest))
        {
  	FOR_EACH_LOG_LINK (link, next)
  	  if (link->insn == insn && link->regno == REGNO (dest))
--- 686,692 ----
    for (next = NEXT_INSN (insn);
         next && BLOCK_FOR_INSN (next) == bb;
         next = NEXT_INSN (next))
!     if (NONDEBUG_INSN_P (next) && dead_or_set_p (next, dest))
        {
  	FOR_EACH_LOG_LINK (link, next)
  	  if (link->insn == insn && link->regno == REGNO (dest))
*************** combine_instructions (rtx_insn *f, unsig
*** 1129,1135 ****
  
    int new_direct_jump_p = 0;
  
!   for (first = f; first && !INSN_P (first); )
      first = NEXT_INSN (first);
    if (!first)
      return 0;
--- 1137,1143 ----
  
    int new_direct_jump_p = 0;
  
!   for (first = f; first && !NONDEBUG_INSN_P (first); )
      first = NEXT_INSN (first);
    if (!first)
      return 0;
*************** cant_combine_insn_p (rtx_insn *insn)
*** 2277,2283 ****
    /* If this isn't really an insn, we can't do anything.
       This can occur when flow deletes an insn that it has merged into an
       auto-increment address.  */
!   if (! INSN_P (insn))
      return 1;
  
    /* Never combine loads and stores involving hard regs that are likely
--- 2285,2291 ----
    /* If this isn't really an insn, we can't do anything.
       This can occur when flow deletes an insn that it has merged into an
       auto-increment address.  */
!   if (!NONDEBUG_INSN_P (insn))
      return 1;
  
    /* Never combine loads and stores involving hard regs that are likely
*************** try_combine (rtx_insn *i3, rtx_insn *i2,
*** 2947,2953 ****
        && is_parallel_of_n_reg_sets (PATTERN (i2), 2)
        && can_split_parallel_of_n_reg_sets (i2, 2)
        && !reg_used_between_p (SET_DEST (XVECEXP (PATTERN (i2), 0, 0)), i2, i3)
!       && !reg_used_between_p (SET_DEST (XVECEXP (PATTERN (i2), 0, 1)), i2, i3))
      {
        /* If there is no I1, there is no I0 either.  */
        i0 = i1;
--- 2955,2962 ----
        && is_parallel_of_n_reg_sets (PATTERN (i2), 2)
        && can_split_parallel_of_n_reg_sets (i2, 2)
        && !reg_used_between_p (SET_DEST (XVECEXP (PATTERN (i2), 0, 0)), i2, i3)
!       && !reg_used_between_p (SET_DEST (XVECEXP (PATTERN (i2), 0, 1)), i2, i3)
!       && !find_reg_note (i2, REG_UNUSED, 0))
      {
        /* If there is no I1, there is no I0 either.  */
        i0 = i1;
*************** try_combine (rtx_insn *i3, rtx_insn *i2,
*** 4171,4177 ****
  		    || insn != BB_HEAD (this_basic_block->next_bb));
  	   insn = NEXT_INSN (insn))
  	{
! 	  if (INSN_P (insn) && reg_referenced_p (ni2dest, PATTERN (insn)))
  	    {
  	      FOR_EACH_LOG_LINK (link, insn)
  		if (link->insn == i3)
--- 4180,4187 ----
  		    || insn != BB_HEAD (this_basic_block->next_bb));
  	   insn = NEXT_INSN (insn))
  	{
! 	  if (NONDEBUG_INSN_P (insn)
! 	      && reg_referenced_p (ni2dest, PATTERN (insn)))
  	    {
  	      FOR_EACH_LOG_LINK (link, insn)
  		if (link->insn == i3)
*************** try_combine (rtx_insn *i3, rtx_insn *i2,
*** 4312,4320 ****
  	    for (temp_insn = NEXT_INSN (i2);
  		 temp_insn
  		 && (this_basic_block->next_bb == EXIT_BLOCK_PTR_FOR_FN (cfun)
! 			  || BB_HEAD (this_basic_block) != temp_insn);
  		 temp_insn = NEXT_INSN (temp_insn))
! 	      if (temp_insn != i3 && INSN_P (temp_insn))
  		FOR_EACH_LOG_LINK (link, temp_insn)
  		  if (link->insn == i2)
  		    link->insn = i3;
--- 4322,4330 ----
  	    for (temp_insn = NEXT_INSN (i2);
  		 temp_insn
  		 && (this_basic_block->next_bb == EXIT_BLOCK_PTR_FOR_FN (cfun)
! 		     || BB_HEAD (this_basic_block) != temp_insn);
  		 temp_insn = NEXT_INSN (temp_insn))
! 	      if (temp_insn != i3 && NONDEBUG_INSN_P (temp_insn))
  		FOR_EACH_LOG_LINK (link, temp_insn)
  		  if (link->insn == i2)
  		    link->insn = i3;
*************** subst (rtx x, rtx from, rtx to, int in_d
*** 5425,5435 ****
  		    x = gen_rtx_CLOBBER (mode, const0_rtx);
  		}
  	      else if (CONST_SCALAR_INT_P (new_rtx)
! 		       && GET_CODE (x) == ZERO_EXTEND)
  		{
! 		  x = simplify_unary_operation (ZERO_EXTEND, GET_MODE (x),
! 						new_rtx, GET_MODE (XEXP (x, 0)));
! 		  gcc_assert (x);
  		}
  	      else
  		SUBST (XEXP (x, i), new_rtx);
--- 5435,5449 ----
  		    x = gen_rtx_CLOBBER (mode, const0_rtx);
  		}
  	      else if (CONST_SCALAR_INT_P (new_rtx)
! 		       && (GET_CODE (x) == ZERO_EXTEND
! 			   || GET_CODE (x) == FLOAT
! 			   || GET_CODE (x) == UNSIGNED_FLOAT))
  		{
! 		  x = simplify_unary_operation (GET_CODE (x), GET_MODE (x),
! 						new_rtx,
! 						GET_MODE (XEXP (x, 0)));
! 		  if (!x)
! 		    return gen_rtx_CLOBBER (VOIDmode, const0_rtx);
  		}
  	      else
  		SUBST (XEXP (x, i), new_rtx);
*************** combine_simplify_rtx (rtx x, machine_mod
*** 5571,5577 ****
  	  /* If everything is a comparison, what we have is highly unlikely
  	     to be simpler, so don't use it.  */
  	  && ! (COMPARISON_P (x)
! 		&& (COMPARISON_P (true_rtx) || COMPARISON_P (false_rtx))))
  	{
  	  rtx cop1 = const0_rtx;
  	  enum rtx_code cond_code = simplify_comparison (NE, &cond, &cop1);
--- 5585,5595 ----
  	  /* If everything is a comparison, what we have is highly unlikely
  	     to be simpler, so don't use it.  */
  	  && ! (COMPARISON_P (x)
! 		&& (COMPARISON_P (true_rtx) || COMPARISON_P (false_rtx)))
! 	  /* Similarly, if we end up with one of the expressions the same
! 	     as the original, it is certainly not simpler.  */
! 	  && ! rtx_equal_p (x, true_rtx)
! 	  && ! rtx_equal_p (x, false_rtx))
  	{
  	  rtx cop1 = const0_rtx;
  	  enum rtx_code cond_code = simplify_comparison (NE, &cond, &cop1);
*************** simplify_if_then_else (rtx x)
*** 6259,6265 ****
  			  pc_rtx, pc_rtx, 0, 0, 0);
        if (reg_mentioned_p (from, false_rtx))
  	false_rtx = subst (known_cond (copy_rtx (false_rtx), false_code,
! 				   from, false_val),
  			   pc_rtx, pc_rtx, 0, 0, 0);
  
        SUBST (XEXP (x, 1), swapped ? false_rtx : true_rtx);
--- 6277,6283 ----
  			  pc_rtx, pc_rtx, 0, 0, 0);
        if (reg_mentioned_p (from, false_rtx))
  	false_rtx = subst (known_cond (copy_rtx (false_rtx), false_code,
! 				       from, false_val),
  			   pc_rtx, pc_rtx, 0, 0, 0);
  
        SUBST (XEXP (x, 1), swapped ? false_rtx : true_rtx);
*************** make_extraction (machine_mode mode, rtx
*** 7326,7332 ****
    if (pos_rtx && CONST_INT_P (pos_rtx))
      pos = INTVAL (pos_rtx), pos_rtx = 0;
  
!   if (GET_CODE (inner) == SUBREG && subreg_lowpart_p (inner))
      {
        /* If going from (subreg:SI (mem:QI ...)) to (mem:QI ...),
  	 consider just the QI as the memory to extract from.
--- 7344,7357 ----
    if (pos_rtx && CONST_INT_P (pos_rtx))
      pos = INTVAL (pos_rtx), pos_rtx = 0;
  
!   if (GET_CODE (inner) == SUBREG
!       && subreg_lowpart_p (inner)
!       && (paradoxical_subreg_p (inner)
! 	  /* If trying or potentionally trying to extract
! 	     bits outside of is_mode, don't look through
! 	     non-paradoxical SUBREGs.  See PR82192.  */
! 	  || (pos_rtx == NULL_RTX
! 	      && pos + len <= GET_MODE_PRECISION (is_mode))))
      {
        /* If going from (subreg:SI (mem:QI ...)) to (mem:QI ...),
  	 consider just the QI as the memory to extract from.
*************** make_extraction (machine_mode mode, rtx
*** 7352,7358 ****
        if (new_rtx != 0)
  	return gen_rtx_ASHIFT (mode, new_rtx, XEXP (inner, 1));
      }
!   else if (GET_CODE (inner) == TRUNCATE)
      inner = XEXP (inner, 0);
  
    inner_mode = GET_MODE (inner);
--- 7377,7388 ----
        if (new_rtx != 0)
  	return gen_rtx_ASHIFT (mode, new_rtx, XEXP (inner, 1));
      }
!   else if (GET_CODE (inner) == TRUNCATE
! 	   /* If trying or potentionally trying to extract
! 	      bits outside of is_mode, don't look through
! 	      TRUNCATE.  See PR82192.  */
! 	   && pos_rtx == NULL_RTX
! 	   && pos + len <= GET_MODE_PRECISION (is_mode))
      inner = XEXP (inner, 0);
  
    inner_mode = GET_MODE (inner);
*************** if_then_else_cond (rtx x, rtx *ptrue, rt
*** 9005,9010 ****
--- 9035,9041 ----
  
  	  if (COMPARISON_P (cond0)
  	      && COMPARISON_P (cond1)
+ 	      && SCALAR_INT_MODE_P (mode)
  	      && ((GET_CODE (cond0) == reversed_comparison_code (cond1, NULL)
  		   && rtx_equal_p (XEXP (cond0, 0), XEXP (cond1, 0))
  		   && rtx_equal_p (XEXP (cond0, 1), XEXP (cond1, 1)))
*************** known_cond (rtx x, enum rtx_code cond, r
*** 9153,9164 ****
  	  if (COMPARISON_P (x))
  	    {
  	      if (comparison_dominates_p (cond, code))
! 		return const_true_rtx;
  
  	      code = reversed_comparison_code (x, NULL);
  	      if (code != UNKNOWN
  		  && comparison_dominates_p (cond, code))
! 		return const0_rtx;
  	      else
  		return x;
  	    }
--- 9184,9195 ----
  	  if (COMPARISON_P (x))
  	    {
  	      if (comparison_dominates_p (cond, code))
! 		return VECTOR_MODE_P (GET_MODE (x)) ? x : const_true_rtx;
  
  	      code = reversed_comparison_code (x, NULL);
  	      if (code != UNKNOWN
  		  && comparison_dominates_p (cond, code))
! 		return CONST0_RTX (GET_MODE (x));
  	      else
  		return x;
  	    }
*************** known_cond (rtx x, enum rtx_code cond, r
*** 9201,9207 ****
  	  /* We must simplify subreg here, before we lose track of the
  	     original inner_mode.  */
  	  new_rtx = simplify_subreg (GET_MODE (x), r,
! 				 inner_mode, SUBREG_BYTE (x));
  	  if (new_rtx)
  	    return new_rtx;
  	  else
--- 9232,9238 ----
  	  /* We must simplify subreg here, before we lose track of the
  	     original inner_mode.  */
  	  new_rtx = simplify_subreg (GET_MODE (x), r,
! 				     inner_mode, SUBREG_BYTE (x));
  	  if (new_rtx)
  	    return new_rtx;
  	  else
*************** known_cond (rtx x, enum rtx_code cond, r
*** 9226,9232 ****
  	  /* We must simplify the zero_extend here, before we lose
  	     track of the original inner_mode.  */
  	  new_rtx = simplify_unary_operation (ZERO_EXTEND, GET_MODE (x),
! 					  r, inner_mode);
  	  if (new_rtx)
  	    return new_rtx;
  	  else
--- 9257,9263 ----
  	  /* We must simplify the zero_extend here, before we lose
  	     track of the original inner_mode.  */
  	  new_rtx = simplify_unary_operation (ZERO_EXTEND, GET_MODE (x),
! 					      r, inner_mode);
  	  if (new_rtx)
  	    return new_rtx;
  	  else
*************** distribute_notes (rtx notes, rtx_insn *f
*** 13941,13946 ****
--- 13972,13988 ----
  		  && CALL_P (from_insn)
  		  && find_reg_fusage (from_insn, USE, XEXP (note, 0)))
  		place = from_insn;
+ 	      else if (i2 && reg_set_p (XEXP (note, 0), PATTERN (i2)))
+ 		{
+ 		  /* If the new I2 sets the same register that is marked
+ 		     dead in the note, we do not in general know where to
+ 		     put the note.  One important case we _can_ handle is
+ 		     when the note comes from I3.  */
+ 		  if (from_insn == i3)
+ 		    place = i3;
+ 		  else
+ 		    break;
+ 		}
  	      else if (reg_referenced_p (XEXP (note, 0), PATTERN (i3)))
  		place = i3;
  	      else if (i2 != 0 && next_nonnote_nondebug_insn (i2) == i3
*************** distribute_notes (rtx notes, rtx_insn *f
*** 13954,13964 ****
  		       || rtx_equal_p (XEXP (note, 0), elim_i0))
  		break;
  	      tem_insn = i3;
- 	      /* If the new I2 sets the same register that is marked dead
- 		 in the note, we do not know where to put the note.
- 		 Give up.  */
- 	      if (i2 != 0 && reg_set_p (XEXP (note, 0), PATTERN (i2)))
- 		break;
  	    }
  
  	  if (place == 0)
--- 13996,14001 ----
diff -Nrcpad gcc-6.4.0/gcc/config/aarch64/aarch64.c gcc-6.5.0/gcc/config/aarch64/aarch64.c
*** gcc-6.4.0/gcc/config/aarch64/aarch64.c	Fri Apr  7 16:26:52 2017
--- gcc-6.5.0/gcc/config/aarch64/aarch64.c	Tue Jul 17 12:53:42 2018
*************** aarch64_load_symref_appropriately (rtx d
*** 1110,1116 ****
  	    emit_move_insn (gp_rtx, gen_rtx_HIGH (Pmode, s));
  
  	    if (mode != GET_MODE (gp_rtx))
! 	      gp_rtx = simplify_gen_subreg (mode, gp_rtx, GET_MODE (gp_rtx), 0);
  	  }
  
  	if (mode == ptr_mode)
--- 1110,1116 ----
  	    emit_move_insn (gp_rtx, gen_rtx_HIGH (Pmode, s));
  
  	    if (mode != GET_MODE (gp_rtx))
!              gp_rtx = gen_lowpart (mode, gp_rtx);
  	  }
  
  	if (mode == ptr_mode)
*************** aarch64_class_max_nregs (reg_class_t reg
*** 5337,5343 ****
  {
    switch (regclass)
      {
!     case CALLER_SAVE_REGS:
      case POINTER_REGS:
      case GENERAL_REGS:
      case ALL_REGS:
--- 5337,5343 ----
  {
    switch (regclass)
      {
!     case TAILCALL_ADDR_REGS:
      case POINTER_REGS:
      case GENERAL_REGS:
      case ALL_REGS:
*************** aarch64_elf_asm_constructor (rtx symbol,
*** 5417,5423 ****
        section *s;
        char buf[18];
        snprintf (buf, sizeof (buf), ".init_array.%.5u", priority);
!       s = get_section (buf, SECTION_WRITE, NULL);
        switch_to_section (s);
        assemble_align (POINTER_SIZE);
        assemble_aligned_integer (POINTER_BYTES, symbol);
--- 5417,5423 ----
        section *s;
        char buf[18];
        snprintf (buf, sizeof (buf), ".init_array.%.5u", priority);
!       s = get_section (buf, SECTION_WRITE | SECTION_NOTYPE, NULL);
        switch_to_section (s);
        assemble_align (POINTER_SIZE);
        assemble_aligned_integer (POINTER_BYTES, symbol);
*************** aarch64_elf_asm_destructor (rtx symbol,
*** 5434,5440 ****
        section *s;
        char buf[18];
        snprintf (buf, sizeof (buf), ".fini_array.%.5u", priority);
!       s = get_section (buf, SECTION_WRITE, NULL);
        switch_to_section (s);
        assemble_align (POINTER_SIZE);
        assemble_aligned_integer (POINTER_BYTES, symbol);
--- 5434,5440 ----
        section *s;
        char buf[18];
        snprintf (buf, sizeof (buf), ".fini_array.%.5u", priority);
!       s = get_section (buf, SECTION_WRITE | SECTION_NOTYPE, NULL);
        switch_to_section (s);
        assemble_align (POINTER_SIZE);
        assemble_aligned_integer (POINTER_BYTES, symbol);
*************** aarch64_register_move_cost (machine_mode
*** 7383,7392 ****
      = aarch64_tune_params.regmove_cost;
  
    /* Caller save and pointer regs are equivalent to GENERAL_REGS.  */
!   if (to == CALLER_SAVE_REGS || to == POINTER_REGS)
      to = GENERAL_REGS;
  
!   if (from == CALLER_SAVE_REGS || from == POINTER_REGS)
      from = GENERAL_REGS;
  
    /* Moving between GPR and stack cost is the same as GP2GP.  */
--- 7383,7392 ----
      = aarch64_tune_params.regmove_cost;
  
    /* Caller save and pointer regs are equivalent to GENERAL_REGS.  */
!   if (to == TAILCALL_ADDR_REGS || to == POINTER_REGS)
      to = GENERAL_REGS;
  
!   if (from == TAILCALL_ADDR_REGS || from == POINTER_REGS)
      from = GENERAL_REGS;
  
    /* Moving between GPR and stack cost is the same as GP2GP.  */
diff -Nrcpad gcc-6.4.0/gcc/config/aarch64/aarch64.h gcc-6.5.0/gcc/config/aarch64/aarch64.h
*** gcc-6.4.0/gcc/config/aarch64/aarch64.h	Fri Jan 20 15:34:41 2017
--- gcc-6.5.0/gcc/config/aarch64/aarch64.h	Thu Feb  1 21:33:05 2018
*************** extern unsigned aarch64_architecture_ver
*** 420,426 ****
  enum reg_class
  {
    NO_REGS,
!   CALLER_SAVE_REGS,
    GENERAL_REGS,
    STACK_REG,
    POINTER_REGS,
--- 420,426 ----
  enum reg_class
  {
    NO_REGS,
!   TAILCALL_ADDR_REGS,
    GENERAL_REGS,
    STACK_REG,
    POINTER_REGS,
*************** enum reg_class
*** 435,441 ****
  #define REG_CLASS_NAMES				\
  {						\
    "NO_REGS",					\
!   "CALLER_SAVE_REGS",				\
    "GENERAL_REGS",				\
    "STACK_REG",					\
    "POINTER_REGS",				\
--- 435,441 ----
  #define REG_CLASS_NAMES				\
  {						\
    "NO_REGS",					\
!   "TAILCALL_ADDR_REGS",				\
    "GENERAL_REGS",				\
    "STACK_REG",					\
    "POINTER_REGS",				\
*************** enum reg_class
*** 447,453 ****
  #define REG_CLASS_CONTENTS						\
  {									\
    { 0x00000000, 0x00000000, 0x00000000 },	/* NO_REGS */		\
!   { 0x0007ffff, 0x00000000, 0x00000000 },	/* CALLER_SAVE_REGS */	\
    { 0x7fffffff, 0x00000000, 0x00000003 },	/* GENERAL_REGS */	\
    { 0x80000000, 0x00000000, 0x00000000 },	/* STACK_REG */		\
    { 0xffffffff, 0x00000000, 0x00000003 },	/* POINTER_REGS */	\
--- 447,453 ----
  #define REG_CLASS_CONTENTS						\
  {									\
    { 0x00000000, 0x00000000, 0x00000000 },	/* NO_REGS */		\
!   { 0x0004ffff, 0x00000000, 0x00000000 },	/* TAILCALL_ADDR_REGS */\
    { 0x7fffffff, 0x00000000, 0x00000003 },	/* GENERAL_REGS */	\
    { 0x80000000, 0x00000000, 0x00000000 },	/* STACK_REG */		\
    { 0xffffffff, 0x00000000, 0x00000003 },	/* POINTER_REGS */	\
*************** extern const char *host_detect_local_cpu
*** 935,938 ****
--- 935,946 ----
  extern tree aarch64_fp16_type_node;
  extern tree aarch64_fp16_ptr_type_node;
  
+ /* The generic unwind code in libgcc does not initialize the frame pointer.
+    So in order to unwind a function using a frame pointer, the very first
+    function that is unwound must save the frame pointer.  That way the frame
+    pointer is restored and its value is now valid - otherwise _Unwind_GetGR
+    crashes.  Libgcc can now be safely built with -fomit-frame-pointer.  */
+ #define LIBGCC2_UNWIND_ATTRIBUTE \
+   __attribute__((optimize ("no-omit-frame-pointer")))
+ 
  #endif /* GCC_AARCH64_H */
diff -Nrcpad gcc-6.4.0/gcc/config/aarch64/aarch64.md gcc-6.5.0/gcc/config/aarch64/aarch64.md
*** gcc-6.4.0/gcc/config/aarch64/aarch64.md	Fri Apr  7 16:26:52 2017
--- gcc-6.5.0/gcc/config/aarch64/aarch64.md	Tue Apr 10 13:05:24 2018
***************
*** 3081,3087 ****
  (define_insn_and_split "*compare_cstore<mode>_insn"
    [(set (match_operand:GPI 0 "register_operand" "=r")
  	 (EQL:GPI (match_operand:GPI 1 "register_operand" "r")
! 		  (match_operand:GPI 2 "aarch64_imm24" "n")))]
    "!aarch64_move_imm (INTVAL (operands[2]), <MODE>mode)
     && !aarch64_plus_operand (operands[2], <MODE>mode)
     && !reload_completed"
--- 3081,3088 ----
  (define_insn_and_split "*compare_cstore<mode>_insn"
    [(set (match_operand:GPI 0 "register_operand" "=r")
  	 (EQL:GPI (match_operand:GPI 1 "register_operand" "r")
! 		  (match_operand:GPI 2 "aarch64_imm24" "n")))
!    (clobber (reg:CC CC_REGNUM))]
    "!aarch64_move_imm (INTVAL (operands[2]), <MODE>mode)
     && !aarch64_plus_operand (operands[2], <MODE>mode)
     && !reload_completed"
diff -Nrcpad gcc-6.4.0/gcc/config/aarch64/constraints.md gcc-6.5.0/gcc/config/aarch64/constraints.md
*** gcc-6.4.0/gcc/config/aarch64/constraints.md	Mon Jan 18 20:56:13 2016
--- gcc-6.5.0/gcc/config/aarch64/constraints.md	Thu Feb  1 21:33:05 2018
***************
*** 21,28 ****
  (define_register_constraint "k" "STACK_REG"
    "@internal The stack register.")
  
! (define_register_constraint "Ucs" "CALLER_SAVE_REGS"
!   "@internal The caller save registers.")
  
  (define_register_constraint "w" "FP_REGS"
    "Floating point and SIMD vector registers.")
--- 21,28 ----
  (define_register_constraint "k" "STACK_REG"
    "@internal The stack register.")
  
! (define_register_constraint "Ucs" "TAILCALL_ADDR_REGS"
!   "@internal Registers suitable for an indirect tail call")
  
  (define_register_constraint "w" "FP_REGS"
    "Floating point and SIMD vector registers.")
diff -Nrcpad gcc-6.4.0/gcc/config/aarch64/cortex-a57-fma-steering.c gcc-6.5.0/gcc/config/aarch64/cortex-a57-fma-steering.c
*** gcc-6.4.0/gcc/config/aarch64/cortex-a57-fma-steering.c	Fri Apr 22 11:09:22 2016
--- gcc-6.5.0/gcc/config/aarch64/cortex-a57-fma-steering.c	Fri Jul 28 11:25:08 2017
*************** func_fma_steering::analyze ()
*** 973,982 ****
  		break;
  	    }
  
! 	  /* We didn't find a chain with a def for this instruction.  */
! 	  gcc_assert (i < dest_op_info->n_chains);
! 
! 	  this->analyze_fma_fmul_insn (forest, chain, head);
  	}
      }
    free (bb_dfs_preorder);
--- 973,989 ----
  		break;
  	    }
  
! 	  /* Due to implementation of regrename, dest register can slip away
! 	     from regrename's analysis.  As a result, there is no chain for
! 	     the destination register of insn.  We simply skip the insn even
! 	     it is a fmul/fmac instruction.  This can happen when the dest
! 	     register is also a source register of insn and one of the below
! 	     conditions is satisfied:
! 	       1) the source reg is setup in larger mode than this insn;
! 	       2) the source reg is uninitialized;
! 	       3) the source reg is passed in as parameter.  */
! 	  if (i < dest_op_info->n_chains)
! 	    this->analyze_fma_fmul_insn (forest, chain, head);
  	}
      }
    free (bb_dfs_preorder);
diff -Nrcpad gcc-6.4.0/gcc/config/alpha/alpha.c gcc-6.5.0/gcc/config/alpha/alpha.c
*** gcc-6.4.0/gcc/config/alpha/alpha.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/alpha/alpha.c	Wed Apr 11 19:03:51 2018
*************** alpha_expand_prologue (void)
*** 7739,7751 ****
  	  int probed;
  
  	  for (probed = 4096; probed < probed_size; probed += 8192)
! 	    emit_insn (gen_probe_stack (GEN_INT (-probed)));
  
  	  /* We only have to do this probe if we aren't saving registers or
  	     if we are probing beyond the frame because of -fstack-check.  */
  	  if ((sa_size == 0 && probed_size > probed - 4096)
  	      || flag_stack_check)
! 	    emit_insn (gen_probe_stack (GEN_INT (-probed_size)));
  	}
  
        if (frame_size != 0)
--- 7739,7751 ----
  	  int probed;
  
  	  for (probed = 4096; probed < probed_size; probed += 8192)
! 	    emit_insn (gen_stack_probe_internal (GEN_INT (-probed)));
  
  	  /* We only have to do this probe if we aren't saving registers or
  	     if we are probing beyond the frame because of -fstack-check.  */
  	  if ((sa_size == 0 && probed_size > probed - 4096)
  	      || flag_stack_check)
! 	    emit_insn (gen_stack_probe_internal (GEN_INT (-probed_size)));
  	}
  
        if (frame_size != 0)
diff -Nrcpad gcc-6.4.0/gcc/config/alpha/alpha.md gcc-6.5.0/gcc/config/alpha/alpha.md
*** gcc-6.4.0/gcc/config/alpha/alpha.md	Wed May 18 19:39:49 2016
--- gcc-6.5.0/gcc/config/alpha/alpha.md	Wed Apr 11 19:03:51 2018
***************
*** 4843,4849 ****
  
  
  ;; Subroutine of stack space allocation.  Perform a stack probe.
! (define_expand "probe_stack"
    [(set (match_dup 1) (match_operand:DI 0 "const_int_operand"))]
    ""
  {
--- 4843,4849 ----
  
  
  ;; Subroutine of stack space allocation.  Perform a stack probe.
! (define_expand "stack_probe_internal"
    [(set (match_dup 1) (match_operand:DI 0 "const_int_operand"))]
    ""
  {
***************
*** 4878,4889 ****
  
  	  int probed = 4096;
  
! 	  emit_insn (gen_probe_stack (GEN_INT (- probed)));
  	  while (probed + 8192 < INTVAL (operands[1]))
! 	    emit_insn (gen_probe_stack (GEN_INT (- (probed += 8192))));
  
  	  if (probed + 4096 < INTVAL (operands[1]))
! 	    emit_insn (gen_probe_stack (GEN_INT (- INTVAL(operands[1]))));
  	}
  
        operands[1] = GEN_INT (- INTVAL (operands[1]));
--- 4878,4891 ----
  
  	  int probed = 4096;
  
! 	  emit_insn (gen_stack_probe_internal (GEN_INT (- probed)));
  	  while (probed + 8192 < INTVAL (operands[1]))
! 	    emit_insn (gen_stack_probe_internal
! 		       (GEN_INT (- (probed += 8192))));
  
  	  if (probed + 4096 < INTVAL (operands[1]))
! 	    emit_insn (gen_stack_probe_internal
! 		       (GEN_INT (- INTVAL(operands[1]))));
  	}
  
        operands[1] = GEN_INT (- INTVAL (operands[1]));
diff -Nrcpad gcc-6.4.0/gcc/config/alpha/sync.md gcc-6.5.0/gcc/config/alpha/sync.md
*** gcc-6.4.0/gcc/config/alpha/sync.md	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/alpha/sync.md	Tue Oct 31 10:36:33 2017
***************
*** 24,30 ****
    [(plus "add_operand") (minus "reg_or_8bit_operand")
     (ior "or_operand") (xor "or_operand") (and "and_operand")])
  (define_code_attr fetchop_constr
!   [(plus "rKL") (minus "rI") (ior "rIN") (xor "rIN") (and "riNM")])
  
  
  (define_expand "memory_barrier"
--- 24,30 ----
    [(plus "add_operand") (minus "reg_or_8bit_operand")
     (ior "or_operand") (xor "or_operand") (and "and_operand")])
  (define_code_attr fetchop_constr
!   [(plus "rKL") (minus "rI") (ior "rIN") (xor "rIN") (and "rINM")])
  
  
  (define_expand "memory_barrier"
diff -Nrcpad gcc-6.4.0/gcc/config/arm/arm-builtins.c gcc-6.5.0/gcc/config/arm/arm-builtins.c
*** gcc-6.4.0/gcc/config/arm/arm-builtins.c	Fri Jun 23 16:13:02 2017
--- gcc-6.5.0/gcc/config/arm/arm-builtins.c	Wed Apr 18 13:17:30 2018
*************** arm_expand_builtin (tree exp,
*** 2368,2374 ****
  	  icode = CODE_FOR_set_fpscr;
  	  arg0 = CALL_EXPR_ARG (exp, 0);
  	  op0 = expand_normal (arg0);
! 	  pat = GEN_FCN (icode) (op0);
  	}
        emit_insn (pat);
        return target;
--- 2368,2374 ----
  	  icode = CODE_FOR_set_fpscr;
  	  arg0 = CALL_EXPR_ARG (exp, 0);
  	  op0 = expand_normal (arg0);
! 	  pat = GEN_FCN (icode) (force_reg (SImode, op0));
  	}
        emit_insn (pat);
        return target;
diff -Nrcpad gcc-6.4.0/gcc/config/arm/arm-cores.def gcc-6.5.0/gcc/config/arm/arm-cores.def
*** gcc-6.4.0/gcc/config/arm/arm-cores.def	Mon Mar  7 18:04:20 2016
--- gcc-6.5.0/gcc/config/arm/arm-cores.def	Thu Nov  9 14:34:28 2017
*************** ARM_CORE("cortex-m0plus.small-multiply",
*** 145,156 ****
  /* V7 Architecture Processors */
  ARM_CORE("generic-armv7-a",	genericv7a, genericv7a,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex)
  ARM_CORE("cortex-a5",		cortexa5, cortexa5,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex_a5)
! ARM_CORE("cortex-a7",		cortexa7, cortexa7,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a7)
  ARM_CORE("cortex-a8",		cortexa8, cortexa8,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex_a8)
  ARM_CORE("cortex-a9",		cortexa9, cortexa9,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex_a9)
! ARM_CORE("cortex-a12",		cortexa12, cortexa17,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a12)
! ARM_CORE("cortex-a15",		cortexa15, cortexa15,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a15)
! ARM_CORE("cortex-a17",		cortexa17, cortexa17,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a12)
  ARM_CORE("cortex-r4",		cortexr4, cortexr4,		7R,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7R), cortex)
  ARM_CORE("cortex-r4f",		cortexr4f, cortexr4f,		7R,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7R), cortex)
  ARM_CORE("cortex-r5",		cortexr5, cortexr5,		7R,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_ARM_DIV | FL_FOR_ARCH7R), cortex)
--- 145,156 ----
  /* V7 Architecture Processors */
  ARM_CORE("generic-armv7-a",	genericv7a, genericv7a,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex)
  ARM_CORE("cortex-a5",		cortexa5, cortexa5,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex_a5)
! ARM_CORE("cortex-a7",		cortexa7, cortexa7,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7VE), cortex_a7)
  ARM_CORE("cortex-a8",		cortexa8, cortexa8,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex_a8)
  ARM_CORE("cortex-a9",		cortexa9, cortexa9,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), cortex_a9)
! ARM_CORE("cortex-a12",		cortexa12, cortexa17,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7VE), cortex_a12)
! ARM_CORE("cortex-a15",		cortexa15, cortexa15,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7VE), cortex_a15)
! ARM_CORE("cortex-a17",		cortexa17, cortexa17,		7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7VE), cortex_a12)
  ARM_CORE("cortex-r4",		cortexr4, cortexr4,		7R,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7R), cortex)
  ARM_CORE("cortex-r4f",		cortexr4f, cortexr4f,		7R,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7R), cortex)
  ARM_CORE("cortex-r5",		cortexr5, cortexr5,		7R,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_ARM_DIV | FL_FOR_ARCH7R), cortex)
*************** ARM_CORE("cortex-m3",		cortexm3, cortexm
*** 162,169 ****
  ARM_CORE("marvell-pj4",		marvell_pj4, marvell_pj4,	7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), marvell_pj4)
  
  /* V7 big.LITTLE implementations */
! ARM_CORE("cortex-a15.cortex-a7", cortexa15cortexa7, cortexa7,	7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a15)
! ARM_CORE("cortex-a17.cortex-a7", cortexa17cortexa7, cortexa7,	7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV | FL_FOR_ARCH7A), cortex_a12)
  
  /* V8 Architecture Processors */
  ARM_CORE("cortex-a32",	cortexa32, cortexa53,	8A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a35)
--- 162,169 ----
  ARM_CORE("marvell-pj4",		marvell_pj4, marvell_pj4,	7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7A), marvell_pj4)
  
  /* V7 big.LITTLE implementations */
! ARM_CORE("cortex-a15.cortex-a7", cortexa15cortexa7, cortexa7,	7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7VE), cortex_a15)
! ARM_CORE("cortex-a17.cortex-a7", cortexa17cortexa7, cortexa7,	7A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_FOR_ARCH7VE), cortex_a12)
  
  /* V8 Architecture Processors */
  ARM_CORE("cortex-a32",	cortexa32, cortexa53,	8A,	ARM_FSET_MAKE_CPU1 (FL_LDSCHED | FL_CRC32 | FL_FOR_ARCH8A), cortex_a35)
diff -Nrcpad gcc-6.4.0/gcc/config/arm/arm.c gcc-6.5.0/gcc/config/arm/arm.c
*** gcc-6.4.0/gcc/config/arm/arm.c	Fri May  5 15:38:04 2017
--- gcc-6.5.0/gcc/config/arm/arm.c	Thu Mar 29 09:27:53 2018
*************** operands_ok_ldrd_strd (rtx rt, rtx rt2,
*** 15926,15937 ****
    return true;
  }
  
  /* Helper for gen_operands_ldrd_strd.  Returns true iff the memory
     operand MEM's address contains an immediate offset from the base
!    register and has no side effects, in which case it sets BASE and
!    OFFSET accordingly.  */
  static bool
! mem_ok_for_ldrd_strd (rtx mem, rtx *base, rtx *offset)
  {
    rtx addr;
  
--- 15926,15948 ----
    return true;
  }
  
+ /* Return true if a 64-bit access with alignment ALIGN and with a
+    constant offset OFFSET from the base pointer is permitted on this
+    architecture.  */
+ static bool
+ align_ok_ldrd_strd (HOST_WIDE_INT align, HOST_WIDE_INT offset)
+ {
+   return (unaligned_access
+ 	  ? (align >= BITS_PER_WORD && (offset & 3) == 0)
+ 	  : (align >= 2 * BITS_PER_WORD && (offset & 7) == 0));
+ }
+ 
  /* Helper for gen_operands_ldrd_strd.  Returns true iff the memory
     operand MEM's address contains an immediate offset from the base
!    register and has no side effects, in which case it sets BASE,
!    OFFSET and ALIGN accordingly.  */
  static bool
! mem_ok_for_ldrd_strd (rtx mem, rtx *base, rtx *offset, HOST_WIDE_INT *align)
  {
    rtx addr;
  
*************** mem_ok_for_ldrd_strd (rtx mem, rtx *base
*** 15950,15955 ****
--- 15961,15967 ----
    gcc_assert (MEM_P (mem));
  
    *offset = const0_rtx;
+   *align = MEM_ALIGN (mem);
  
    addr = XEXP (mem, 0);
  
*************** gen_operands_ldrd_strd (rtx *operands, b
*** 15990,15996 ****
                          bool const_store, bool commute)
  {
    int nops = 2;
!   HOST_WIDE_INT offsets[2], offset;
    rtx base = NULL_RTX;
    rtx cur_base, cur_offset, tmp;
    int i, gap;
--- 16002,16008 ----
                          bool const_store, bool commute)
  {
    int nops = 2;
!   HOST_WIDE_INT offsets[2], offset, align[2];
    rtx base = NULL_RTX;
    rtx cur_base, cur_offset, tmp;
    int i, gap;
*************** gen_operands_ldrd_strd (rtx *operands, b
*** 16002,16008 ****
       registers, and the corresponding memory offsets.  */
    for (i = 0; i < nops; i++)
      {
!       if (!mem_ok_for_ldrd_strd (operands[nops+i], &cur_base, &cur_offset))
          return false;
  
        if (i == 0)
--- 16014,16021 ----
       registers, and the corresponding memory offsets.  */
    for (i = 0; i < nops; i++)
      {
!       if (!mem_ok_for_ldrd_strd (operands[nops+i], &cur_base, &cur_offset,
! 				 &align[i]))
          return false;
  
        if (i == 0)
*************** gen_operands_ldrd_strd (rtx *operands, b
*** 16114,16119 ****
--- 16127,16133 ----
        /* Swap the instructions such that lower memory is accessed first.  */
        std::swap (operands[0], operands[1]);
        std::swap (operands[2], operands[3]);
+       std::swap (align[0], align[1]);
        if (const_store)
          std::swap (operands[4], operands[5]);
      }
*************** gen_operands_ldrd_strd (rtx *operands, b
*** 16127,16132 ****
--- 16141,16149 ----
    if (gap != 4)
      return false;
  
+   if (!align_ok_ldrd_strd (align[0], offset))
+     return false;
+ 
    /* Make sure we generate legal instructions.  */
    if (operands_ok_ldrd_strd (operands[0], operands[1], base, offset,
                               false, load))
*************** arm_r3_live_at_start_p (void)
*** 19331,19336 ****
--- 19348,19358 ----
  static int
  arm_compute_static_chain_stack_bytes (void)
  {
+   /* Once the value is updated from the init value of -1, do not
+      re-compute.  */
+   if (cfun->machine->static_chain_stack_bytes != -1)
+     return cfun->machine->static_chain_stack_bytes;
+ 
    /* See the defining assertion in arm_expand_prologue.  */
    if (IS_NESTED (arm_current_func_type ())
        && ((TARGET_APCS_FRAME && frame_pointer_needed && TARGET_ARM)
*************** arm_expand_prologue (void)
*** 21563,21568 ****
--- 21585,21595 ----
        emit_insn (gen_movsi (stack_pointer_rtx, r1));
      }
  
+   /* Let's compute the static_chain_stack_bytes required and store it.  Right
+      now the value must the -1 as stored by arm_init_machine_status ().  */
+   cfun->machine->static_chain_stack_bytes
+     = arm_compute_static_chain_stack_bytes ();
+ 
    /* The static chain register is the same as the IP register.  If it is
       clobbered when creating the frame, we need to save and restore it.  */
    clobber_ip = IS_NESTED (func_type)
*************** arm_init_machine_status (void)
*** 24655,24660 ****
--- 24682,24688 ----
  #if ARM_FT_UNKNOWN != 0
    machine->func_type = ARM_FT_UNKNOWN;
  #endif
+   machine->static_chain_stack_bytes = -1;
    return machine;
  }
  
*************** static bool
*** 26723,26729 ****
  arm_array_mode_supported_p (machine_mode mode,
  			    unsigned HOST_WIDE_INT nelems)
  {
!   if (TARGET_NEON
        && (VALID_NEON_DREG_MODE (mode) || VALID_NEON_QREG_MODE (mode))
        && (nelems >= 2 && nelems <= 4))
      return true;
--- 26751,26760 ----
  arm_array_mode_supported_p (machine_mode mode,
  			    unsigned HOST_WIDE_INT nelems)
  {
!   /* We don't want to enable interleaved loads and stores for BYTES_BIG_ENDIAN
!      for now, as the lane-swapping logic needs to be extended in the expanders.
!      See PR target/82518.  */
!   if (TARGET_NEON && !BYTES_BIG_ENDIAN
        && (VALID_NEON_DREG_MODE (mode) || VALID_NEON_QREG_MODE (mode))
        && (nelems >= 2 && nelems <= 4))
      return true;
diff -Nrcpad gcc-6.4.0/gcc/config/arm/arm.h gcc-6.5.0/gcc/config/arm/arm.h
*** gcc-6.4.0/gcc/config/arm/arm.h	Fri Apr  7 07:06:01 2017
--- gcc-6.5.0/gcc/config/arm/arm.h	Thu Mar 29 09:27:53 2018
*************** typedef struct GTY(()) machine_function
*** 1435,1440 ****
--- 1435,1443 ----
    machine_mode thumb1_cc_mode;
    /* Set to 1 after arm_reorg has started.  */
    int after_arm_reorg;
+   /* The number of bytes used to store the static chain register on the
+      stack, above the stack frame.  */
+   int static_chain_stack_bytes;
  }
  machine_function;
  #endif
*************** enum arm_auto_incmodes
*** 1677,1688 ****
  
  /* These assume that REGNO is a hard or pseudo reg number.
     They give nonzero only if REGNO is a hard reg of the suitable class
!    or a pseudo reg currently allocated to a suitable hard reg.
!    Since they use reg_renumber, they are safe only once reg_renumber
!    has been allocated, which happens in reginfo.c during register
!    allocation.  */
  #define TEST_REGNO(R, TEST, VALUE) \
!   ((R TEST VALUE) || ((unsigned) reg_renumber[R] TEST VALUE))
  
  /* Don't allow the pc to be used.  */
  #define ARM_REGNO_OK_FOR_BASE_P(REGNO)			\
--- 1680,1689 ----
  
  /* These assume that REGNO is a hard or pseudo reg number.
     They give nonzero only if REGNO is a hard reg of the suitable class
!    or a pseudo reg currently allocated to a suitable hard reg.  */
  #define TEST_REGNO(R, TEST, VALUE) \
!   ((R TEST VALUE)	\
!     || (reg_renumber && ((unsigned) reg_renumber[R] TEST VALUE)))
  
  /* Don't allow the pc to be used.  */
  #define ARM_REGNO_OK_FOR_BASE_P(REGNO)			\
diff -Nrcpad gcc-6.4.0/gcc/config/arm/arm.md gcc-6.5.0/gcc/config/arm/arm.md
*** gcc-6.4.0/gcc/config/arm/arm.md	Wed Dec  7 17:41:47 2016
--- gcc-6.5.0/gcc/config/arm/arm.md	Wed Mar 28 10:38:36 2018
***************
*** 4247,4262 ****
     (set_attr "type" "load1")])
  
  (define_insn "unaligned_loadhis"
!   [(set (match_operand:SI 0 "s_register_operand" "=l,r")
  	(sign_extend:SI
! 	  (unspec:HI [(match_operand:HI 1 "memory_operand" "Uw,Uh")]
  		     UNSPEC_UNALIGNED_LOAD)))]
    "unaligned_access"
    "ldrsh%?\t%0, %1\t@ unaligned"
!   [(set_attr "arch" "t2,any")
!    (set_attr "length" "2,4")
!    (set_attr "predicable" "yes")
!    (set_attr "predicable_short_it" "yes,no")
     (set_attr "type" "load_byte")])
  
  (define_insn "unaligned_loadhiu"
--- 4247,4259 ----
     (set_attr "type" "load1")])
  
  (define_insn "unaligned_loadhis"
!   [(set (match_operand:SI 0 "s_register_operand" "=r")
  	(sign_extend:SI
! 	  (unspec:HI [(match_operand:HI 1 "memory_operand" "Uh")]
  		     UNSPEC_UNALIGNED_LOAD)))]
    "unaligned_access"
    "ldrsh%?\t%0, %1\t@ unaligned"
!   [(set_attr "predicable" "yes")
     (set_attr "type" "load_byte")])
  
  (define_insn "unaligned_loadhiu"
diff -Nrcpad gcc-6.4.0/gcc/config/arm/freebsd.h gcc-6.5.0/gcc/config/arm/freebsd.h
*** gcc-6.4.0/gcc/config/arm/freebsd.h	Wed Jun 15 19:17:15 2016
--- gcc-6.5.0/gcc/config/arm/freebsd.h	Tue Oct 10 18:47:57 2017
***************
*** 112,118 ****
  #undef  WCHAR_TYPE_SIZE
  #define WCHAR_TYPE_SIZE BITS_PER_WORD
  
! #if defined (TARGET_FREEBSD_ARMv6)
  #undef  SUBTARGET_CPU_DEFAULT
  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm1176jzs
  #else
--- 112,121 ----
  #undef  WCHAR_TYPE_SIZE
  #define WCHAR_TYPE_SIZE BITS_PER_WORD
  
! #if defined (TARGET_FREEBSD_ARMv7)
! #undef  SUBTARGET_CPU_DEFAULT
! #define SUBTARGET_CPU_DEFAULT TARGET_CPU_genericv7a
! #elif defined (TARGET_FREEBSD_ARMv6)
  #undef  SUBTARGET_CPU_DEFAULT
  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm1176jzs
  #else
diff -Nrcpad gcc-6.4.0/gcc/config/arm/neon.md gcc-6.5.0/gcc/config/arm/neon.md
*** gcc-6.4.0/gcc/config/arm/neon.md	Fri Jan  6 14:26:06 2017
--- gcc-6.5.0/gcc/config/arm/neon.md	Fri May 11 09:35:31 2018
***************
*** 1045,1056 ****
  )
  
  (define_insn_and_split "ashldi3_neon"
!   [(set (match_operand:DI 0 "s_register_operand"	    "= w, w,?&r,?r,?&r, ?w,w")
! 	(ashift:DI (match_operand:DI 1 "s_register_operand" " 0w, w, 0r, 0,  r, 0w,w")
! 		   (match_operand:SI 2 "general_operand"    "rUm, i,  r, i,  i,rUm,i")))
!    (clobber (match_scratch:SI 3				    "= X, X,?&r, X,  X,  X,X"))
!    (clobber (match_scratch:SI 4				    "= X, X,?&r, X,  X,  X,X"))
!    (clobber (match_scratch:DI 5				    "=&w, X,  X, X,  X, &w,X"))
     (clobber (reg:CC_C CC_REGNUM))]
    "TARGET_NEON"
    "#"
--- 1045,1056 ----
  )
  
  (define_insn_and_split "ashldi3_neon"
!   [(set (match_operand:DI 0 "s_register_operand"	    "= w, w, &r, r, &r, ?w,?w")
! 	(ashift:DI (match_operand:DI 1 "s_register_operand" " 0w, w, 0r, 0,  r, 0w, w")
! 		   (match_operand:SI 2 "general_operand"    "rUm, i,  r, i,  i,rUm, i")))
!    (clobber (match_scratch:SI 3				    "= X, X, &r, X,  X,  X, X"))
!    (clobber (match_scratch:SI 4				    "= X, X, &r, X,  X,  X, X"))
!    (clobber (match_scratch:DI 5				    "=&w, X,  X, X,  X, &w, X"))
     (clobber (reg:CC_C CC_REGNUM))]
    "TARGET_NEON"
    "#"
***************
*** 1145,1151 ****
  ;; ashrdi3_neon
  ;; lshrdi3_neon
  (define_insn_and_split "<shift>di3_neon"
!   [(set (match_operand:DI 0 "s_register_operand"	     "= w, w,?&r,?r,?&r,?w,?w")
  	(RSHIFTS:DI (match_operand:DI 1 "s_register_operand" " 0w, w, 0r, 0,  r,0w, w")
  		    (match_operand:SI 2 "reg_or_int_operand" "  r, i,  r, i,  i, r, i")))
     (clobber (match_scratch:SI 3				     "=2r, X, &r, X,  X,2r, X"))
--- 1145,1151 ----
  ;; ashrdi3_neon
  ;; lshrdi3_neon
  (define_insn_and_split "<shift>di3_neon"
!   [(set (match_operand:DI 0 "s_register_operand"	     "= w, w, &r, r, &r,?w,?w")
  	(RSHIFTS:DI (match_operand:DI 1 "s_register_operand" " 0w, w, 0r, 0,  r,0w, w")
  		    (match_operand:SI 2 "reg_or_int_operand" "  r, i,  r, i,  i, r, i")))
     (clobber (match_scratch:SI 3				     "=2r, X, &r, X,  X,2r, X"))
*************** if (BYTES_BIG_ENDIAN)
*** 5583,5610 ****
  })
  
  (define_insn "neon_vabd<mode>_2"
!  [(set (match_operand:VDQ 0 "s_register_operand" "=w")
!        (abs:VDQ (minus:VDQ (match_operand:VDQ 1 "s_register_operand" "w")
!                            (match_operand:VDQ 2 "s_register_operand" "w"))))]
!  "TARGET_NEON && (!<Is_float_mode> || flag_unsafe_math_optimizations)"
   "vabd.<V_s_elem> %<V_reg>0, %<V_reg>1, %<V_reg>2"
!  [(set (attr "type")
!        (if_then_else (ne (symbol_ref "<Is_float_mode>") (const_int 0))
!                      (const_string "neon_fp_abd_s<q>")
!                      (const_string "neon_abd<q>")))]
  )
  
  (define_insn "neon_vabd<mode>_3"
!  [(set (match_operand:VDQ 0 "s_register_operand" "=w")
!        (abs:VDQ (unspec:VDQ [(match_operand:VDQ 1 "s_register_operand" "w")
!                              (match_operand:VDQ 2 "s_register_operand" "w")]
!                  UNSPEC_VSUB)))]
!  "TARGET_NEON && (!<Is_float_mode> || flag_unsafe_math_optimizations)"
   "vabd.<V_if_elem> %<V_reg>0, %<V_reg>1, %<V_reg>2"
!  [(set (attr "type")
!        (if_then_else (ne (symbol_ref "<Is_float_mode>") (const_int 0))
!                      (const_string "neon_fp_abd_s<q>")
!                      (const_string "neon_abd<q>")))]
  )
  
  ;; Copy from core-to-neon regs, then extend, not vice-versa
--- 5583,5604 ----
  })
  
  (define_insn "neon_vabd<mode>_2"
!  [(set (match_operand:VCVTF 0 "s_register_operand" "=w")
!        (abs:VCVTF (minus:VCVTF (match_operand:VCVTF 1 "s_register_operand" "w")
! 			 (match_operand:VCVTF 2 "s_register_operand" "w"))))]
!  "TARGET_NEON && flag_unsafe_math_optimizations"
   "vabd.<V_s_elem> %<V_reg>0, %<V_reg>1, %<V_reg>2"
!  [(set_attr "type" "neon_fp_abd_s<q>")]
  )
  
  (define_insn "neon_vabd<mode>_3"
!  [(set (match_operand:VCVTF 0 "s_register_operand" "=w")
!        (abs:VCVTF (unspec:VCVTF [(match_operand:VCVTF 1 "s_register_operand" "w")
! 			    (match_operand:VCVTF 2 "s_register_operand" "w")]
! 		UNSPEC_VSUB)))]
!  "TARGET_NEON && flag_unsafe_math_optimizations"
   "vabd.<V_if_elem> %<V_reg>0, %<V_reg>1, %<V_reg>2"
!  [(set_attr "type" "neon_fp_abd_s<q>")]
  )
  
  ;; Copy from core-to-neon regs, then extend, not vice-versa
diff -Nrcpad gcc-6.4.0/gcc/config/avr/avr.c gcc-6.5.0/gcc/config/avr/avr.c
*** gcc-6.4.0/gcc/config/avr/avr.c	Wed Apr 19 12:22:59 2017
--- gcc-6.5.0/gcc/config/avr/avr.c	Tue Aug 22 07:57:40 2017
*************** avr_set_current_function (tree decl)
*** 735,746 ****
  
        name = default_strip_name_encoding (name);
  
-       /* Silently ignore 'signal' if 'interrupt' is present.  AVR-LibC startet
-          using this when it switched from SIGNAL and INTERRUPT to ISR.  */
- 
-       if (cfun->machine->is_interrupt)
-         cfun->machine->is_signal = 0;
- 
        /* Interrupt handlers must be  void __vector (void)  functions.  */
  
        if (args && TREE_CODE (TREE_VALUE (args)) != VOID_TYPE)
--- 735,740 ----
*************** avr_set_current_function (tree decl)
*** 749,763 ****
        if (TREE_CODE (ret) != VOID_TYPE)
          error_at (loc, "%qs function cannot return a value", isr);
  
        /* If the function has the 'signal' or 'interrupt' attribute, ensure
           that the name of the function is "__vector_NN" so as to catch
           when the user misspells the vector name.  */
  
        if (!STR_PREFIX_P (name, "__vector"))
!         warning_at (loc, 0, "%qs appears to be a misspelled %s handler",
!                     name, isr);
      }
  
    /* Don't print the above diagnostics more than once.  */
  
    cfun->machine->attributes_checked_p = 1;
--- 743,779 ----
        if (TREE_CODE (ret) != VOID_TYPE)
          error_at (loc, "%qs function cannot return a value", isr);
  
+ #if defined WITH_AVRLIBC
+       /* Silently ignore 'signal' if 'interrupt' is present.  AVR-LibC startet
+          using this when it switched from SIGNAL and INTERRUPT to ISR.  */
+ 
+       if (cfun->machine->is_interrupt)
+         cfun->machine->is_signal = 0;
+ 
        /* If the function has the 'signal' or 'interrupt' attribute, ensure
           that the name of the function is "__vector_NN" so as to catch
           when the user misspells the vector name.  */
  
        if (!STR_PREFIX_P (name, "__vector"))
!         warning_at (loc, OPT_Wmisspelled_isr, "%qs appears to be a misspelled "
!                     "%qs handler, missing %<__vector%> prefix", name, isr);
! #endif // AVR-LibC naming conventions
      }
  
+ #if defined WITH_AVRLIBC
+   // Common problem is using "ISR" without first including avr/interrupt.h.
+   const char *name = IDENTIFIER_POINTER (DECL_NAME (decl));
+   name = default_strip_name_encoding (name);
+   if (0 == strcmp ("ISR", name)
+       || 0 == strcmp ("INTERRUPT", name)
+       || 0 == strcmp ("SIGNAL", name))
+     {
+       warning_at (loc, OPT_Wmisspelled_isr, "%qs is a reserved identifier"
+                   " in AVR-LibC.  Consider %<#include <avr/interrupt.h>%>"
+                   " before using the %qs macro", name, name);
+     }
+ #endif // AVR-LibC naming conventions
+ 
    /* Don't print the above diagnostics more than once.  */
  
    cfun->machine->attributes_checked_p = 1;
*************** out_movqi_r_mr (rtx_insn *insn, rtx op[]
*** 3490,3496 ****
    if (CONSTANT_ADDRESS_P (x))
      {
        int n_words = AVR_TINY ? 1 : 2;
!       return optimize > 0 && io_address_operand (x, QImode)
          ? avr_asm_len ("in %0,%i1", op, plen, -1)
          : avr_asm_len ("lds %0,%m1", op, plen, -n_words);
      }
--- 3506,3512 ----
    if (CONSTANT_ADDRESS_P (x))
      {
        int n_words = AVR_TINY ? 1 : 2;
!       return io_address_operand (x, QImode)
          ? avr_asm_len ("in %0,%i1", op, plen, -1)
          : avr_asm_len ("lds %0,%m1", op, plen, -n_words);
      }
*************** out_movhi_r_mr (rtx_insn *insn, rtx op[]
*** 3745,3751 ****
    else if (CONSTANT_ADDRESS_P (base))
      {
        int n_words = AVR_TINY ? 2 : 4;
!       return optimize > 0 && io_address_operand (base, HImode)
          ? avr_asm_len ("in %A0,%i1" CR_TAB
                         "in %B0,%i1+1", op, plen, -2)
  
--- 3761,3767 ----
    else if (CONSTANT_ADDRESS_P (base))
      {
        int n_words = AVR_TINY ? 2 : 4;
!       return io_address_operand (base, HImode)
          ? avr_asm_len ("in %A0,%i1" CR_TAB
                         "in %B0,%i1+1", op, plen, -2)
  
*************** out_movqi_mr_r (rtx_insn *insn, rtx op[]
*** 4873,4879 ****
    if (CONSTANT_ADDRESS_P (x))
      {
        int n_words = AVR_TINY ? 1 : 2;
!       return optimize > 0 && io_address_operand (x, QImode)
          ? avr_asm_len ("out %i0,%1", op, plen, -1)
          : avr_asm_len ("sts %m0,%1", op, plen, -n_words);
      }
--- 4889,4895 ----
    if (CONSTANT_ADDRESS_P (x))
      {
        int n_words = AVR_TINY ? 1 : 2;
!       return io_address_operand (x, QImode)
          ? avr_asm_len ("out %i0,%1", op, plen, -1)
          : avr_asm_len ("sts %m0,%1", op, plen, -n_words);
      }
*************** avr_out_movhi_mr_r_xmega (rtx_insn *insn
*** 4949,4961 ****
  
    if (CONSTANT_ADDRESS_P (base))
      {
!       int n_words = AVR_TINY ? 2 : 4;
!       return optimize > 0 && io_address_operand (base, HImode)
          ? avr_asm_len ("out %i0,%A1" CR_TAB
                         "out %i0+1,%B1", op, plen, -2)
  
          : avr_asm_len ("sts %m0,%A1" CR_TAB
!                        "sts %m0+1,%B1", op, plen, -n_words);
      }
  
    if (reg_base > 0)
--- 4965,4976 ----
  
    if (CONSTANT_ADDRESS_P (base))
      {
!       return io_address_operand (base, HImode)
          ? avr_asm_len ("out %i0,%A1" CR_TAB
                         "out %i0+1,%B1", op, plen, -2)
  
          : avr_asm_len ("sts %m0,%A1" CR_TAB
!                        "sts %m0+1,%B1", op, plen, -4);
      }
  
    if (reg_base > 0)
*************** out_movhi_mr_r (rtx_insn *insn, rtx op[]
*** 5132,5138 ****
    if (CONSTANT_ADDRESS_P (base))
      {
        int n_words = AVR_TINY ? 2 : 4;
!       return optimize > 0 && io_address_operand (base, HImode)
          ? avr_asm_len ("out %i0+1,%B1" CR_TAB
                         "out %i0,%A1", op, plen, -2)
  
--- 5147,5153 ----
    if (CONSTANT_ADDRESS_P (base))
      {
        int n_words = AVR_TINY ? 2 : 4;
!       return io_address_operand (base, HImode)
          ? avr_asm_len ("out %i0+1,%B1" CR_TAB
                         "out %i0,%A1", op, plen, -2)
  
*************** avr_handle_addr_attribute (tree *node, t
*** 9055,9064 ****
    bool io_p = (strncmp (IDENTIFIER_POINTER (name), "io", 2) == 0);
    location_t loc = DECL_SOURCE_LOCATION (*node);
  
!   if (TREE_CODE (*node) != VAR_DECL)
      {
!       warning_at (loc, 0, "%qE attribute only applies to variables", name);
        *no_add = true;
      }
  
    if (args != NULL_TREE)
--- 9070,9081 ----
    bool io_p = (strncmp (IDENTIFIER_POINTER (name), "io", 2) == 0);
    location_t loc = DECL_SOURCE_LOCATION (*node);
  
!   if (!VAR_P (*node))
      {
!       warning_at (loc, OPT_Wattributes, "%qE attribute only applies to "
! 		  "variables", name);
        *no_add = true;
+       return NULL_TREE;
      }
  
    if (args != NULL_TREE)
*************** avr_handle_addr_attribute (tree *node, t
*** 9068,9075 ****
        tree arg = TREE_VALUE (args);
        if (TREE_CODE (arg) != INTEGER_CST)
  	{
! 	  warning (0, "%qE attribute allows only an integer constant argument",
! 		   name);
  	  *no_add = true;
  	}
        else if (io_p
--- 9085,9092 ----
        tree arg = TREE_VALUE (args);
        if (TREE_CODE (arg) != INTEGER_CST)
  	{
! 	  warning_at (loc, OPT_Wattributes, "%qE attribute allows only an "
! 		      "integer constant argument", name);
  	  *no_add = true;
  	}
        else if (io_p
*************** avr_handle_addr_attribute (tree *node, t
*** 9078,9096 ****
  			? low_io_address_operand : io_address_operand)
  			 (GEN_INT (TREE_INT_CST_LOW (arg)), QImode)))
  	{
! 	  warning_at (loc, 0, "%qE attribute address out of range", name);
  	  *no_add = true;
  	}
        else
  	{
  	  tree attribs = DECL_ATTRIBUTES (*node);
! 	  const char *names[] = { "io", "io_low", "address", NULL } ;
  	  for (const char **p = names; *p; p++)
  	    {
  	      tree other = lookup_attribute (*p, attribs);
  	      if (other && TREE_VALUE (other))
  		{
! 		  warning_at (loc, 0,
  			      "both %s and %qE attribute provide address",
  			      *p, name);
  		  *no_add = true;
--- 9095,9114 ----
  			? low_io_address_operand : io_address_operand)
  			 (GEN_INT (TREE_INT_CST_LOW (arg)), QImode)))
  	{
! 	  warning_at (loc, OPT_Wattributes, "%qE attribute address "
! 		      "out of range", name);
  	  *no_add = true;
  	}
        else
  	{
  	  tree attribs = DECL_ATTRIBUTES (*node);
! 	  const char *names[] = { "io", "io_low", "address", NULL };
  	  for (const char **p = names; *p; p++)
  	    {
  	      tree other = lookup_attribute (*p, attribs);
  	      if (other && TREE_VALUE (other))
  		{
! 		  warning_at (loc, OPT_Wattributes,
  			      "both %s and %qE attribute provide address",
  			      *p, name);
  		  *no_add = true;
*************** avr_handle_addr_attribute (tree *node, t
*** 9101,9107 ****
      }
  
    if (*no_add == false && io_p && !TREE_THIS_VOLATILE (*node))
!     warning_at (loc, 0, "%qE attribute on non-volatile variable", name);
  
    return NULL_TREE;
  }
--- 9119,9126 ----
      }
  
    if (*no_add == false && io_p && !TREE_THIS_VOLATILE (*node))
!     warning_at (loc, OPT_Wattributes, "%qE attribute on non-volatile variable",
! 		name);
  
    return NULL_TREE;
  }
*************** avr_attribute_table[] =
*** 9149,9159 ****
      false },
    { "OS_main",   0, 0, false, true,  true,   avr_handle_fntype_attribute,
      false },
!   { "io",        0, 1, false, false, false,  avr_handle_addr_attribute,
      false },
!   { "io_low",    0, 1, false, false, false,  avr_handle_addr_attribute,
      false },
!   { "address",   1, 1, false, false, false,  avr_handle_addr_attribute,
      false },
    { NULL,        0, 0, false, false, false, NULL, false }
  };
--- 9168,9178 ----
      false },
    { "OS_main",   0, 0, false, true,  true,   avr_handle_fntype_attribute,
      false },
!   { "io",        0, 1, true, false, false,  avr_handle_addr_attribute,
      false },
!   { "io_low",    0, 1, true, false, false,  avr_handle_addr_attribute,
      false },
!   { "address",   1, 1, true, false, false,  avr_handle_addr_attribute,
      false },
    { NULL,        0, 0, false, false, false, NULL, false }
  };
*************** avr_encode_section_info (tree decl, rtx
*** 9591,9608 ****
  
    if (new_decl_p
        && decl && DECL_P (decl)
-       && NULL_TREE == DECL_INITIAL (decl)
        && !DECL_EXTERNAL (decl)
        && avr_progmem_p (decl, DECL_ATTRIBUTES (decl)))
      {
!       // Don't warn for (implicit) aliases like in PR80462.
!       tree asmname = DECL_ASSEMBLER_NAME (decl);
!       varpool_node *node = varpool_node::get_for_asmname (asmname);
!       bool alias_p = node && node->alias;
  
!       if (!alias_p)
!         warning (OPT_Wuninitialized, "uninitialized variable %q+D put into "
!                  "program memory area", decl);
      }
  
    default_encode_section_info (decl, rtl, new_decl_p);
--- 9610,9635 ----
  
    if (new_decl_p
        && decl && DECL_P (decl)
        && !DECL_EXTERNAL (decl)
        && avr_progmem_p (decl, DECL_ATTRIBUTES (decl)))
      {
!       if (!TREE_READONLY (decl))
!         {
!           // This might happen with C++ if stuff needs constructing.
!           error ("variable %q+D with dynamic initialization put "
!                  "into program memory area", decl);
!         }
!       else if (NULL_TREE == DECL_INITIAL (decl))
!         {
!           // Don't warn for (implicit) aliases like in PR80462.
!           tree asmname = DECL_ASSEMBLER_NAME (decl);
!           varpool_node *node = varpool_node::get_for_asmname (asmname);
!           bool alias_p = node && node->alias;
  
!           if (!alias_p)
!             warning (OPT_Wuninitialized, "uninitialized variable %q+D put "
!                      "into program memory area", decl);
!         }
      }
  
    default_encode_section_info (decl, rtl, new_decl_p);
*************** avr_memory_move_cost (machine_mode mode,
*** 9864,9869 ****
--- 9891,9923 ----
  }
  
  
+ /* Cost for mul highpart.  X is a LSHIFTRT, i.e. the outer TRUNCATE is
+    already stripped off.  */
+ 
+ static int
+ avr_mul_highpart_cost (rtx x, int)
+ {
+   if (AVR_HAVE_MUL
+       && LSHIFTRT == GET_CODE (x)
+       && MULT == GET_CODE (XEXP (x, 0))
+       && CONST_INT_P (XEXP (x, 1)))
+     {
+       // This is the wider mode.
+       machine_mode mode = GET_MODE (x);
+   
+       // The middle-end might still have PR81444, i.e. it is calling the cost
+       // functions with strange modes.  Fix this now by also considering
+       // PSImode (should actually be SImode instead).
+       if (HImode == mode || PSImode == mode || SImode == mode)
+         {
+           return COSTS_N_INSNS (2);
+         }
+     }
+ 
+   return 10000;
+ }
+ 
+ 
  /* Mutually recursive subroutine of avr_rtx_cost for calculating the
     cost of an RTX operand given its context.  X is the rtx of the
     operand, MODE is its mode, and OUTER is the rtx_code of this
*************** avr_operand_rtx_cost (rtx x, machine_mod
*** 9903,9909 ****
     In either case, *TOTAL contains the cost result.  */
  
  static bool
! avr_rtx_costs_1 (rtx x, machine_mode mode, int outer_code ATTRIBUTE_UNUSED,
                   int opno ATTRIBUTE_UNUSED, int *total, bool speed)
  {
    enum rtx_code code = GET_CODE (x);
--- 9957,9963 ----
     In either case, *TOTAL contains the cost result.  */
  
  static bool
! avr_rtx_costs_1 (rtx x, machine_mode mode, int outer_code,
                   int opno ATTRIBUTE_UNUSED, int *total, bool speed)
  {
    enum rtx_code code = GET_CODE (x);
*************** avr_rtx_costs_1 (rtx x, machine_mode mod
*** 10544,10549 ****
--- 10598,10609 ----
        return true;
  
      case LSHIFTRT:
+       if (outer_code == TRUNCATE)
+         {
+           *total = avr_mul_highpart_cost (x, speed);
+           return true;
+         }
+ 
        switch (mode)
  	{
  	case QImode:
*************** avr_rtx_costs_1 (rtx x, machine_mode mod
*** 10721,10736 ****
        return true;
  
      case TRUNCATE:
!       if (AVR_HAVE_MUL
!           && LSHIFTRT == GET_CODE (XEXP (x, 0))
!           && MULT == GET_CODE (XEXP (XEXP (x, 0), 0))
!           && CONST_INT_P (XEXP (XEXP (x, 0), 1)))
          {
!           if (QImode == mode || HImode == mode)
!             {
!               *total = COSTS_N_INSNS (2);
!               return true;
!             }
          }
        break;
  
--- 10781,10790 ----
        return true;
  
      case TRUNCATE:
!       if (LSHIFTRT == GET_CODE (XEXP (x, 0)))
          {
!           *total = avr_mul_highpart_cost (XEXP (x, 0), speed);
!           return true;
          }
        break;
  
*************** avr_address_cost (rtx x, machine_mode mo
*** 10779,10786 ****
      }
    else if (CONSTANT_ADDRESS_P (x))
      {
!       if (optimize > 0
!           && io_address_operand (x, QImode))
          cost = 2;
      }
  
--- 10833,10839 ----
      }
    else if (CONSTANT_ADDRESS_P (x))
      {
!       if (io_address_operand (x, QImode))
          cost = 2;
      }
  
diff -Nrcpad gcc-6.4.0/gcc/config/avr/avr.opt gcc-6.5.0/gcc/config/avr/avr.opt
*** gcc-6.4.0/gcc/config/avr/avr.opt	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/avr/avr.opt	Wed Jul 26 14:58:42 2017
*************** Waddr-space-convert
*** 91,96 ****
--- 91,100 ----
  Warning C Report Var(avr_warn_addr_space_convert) Init(0)
  Warn if the address space of an address is changed.
  
+ Wmisspelled-isr
+ Warning C C++ Report Var(avr_warn_misspelled_isr) Init(1)
+ Warn if the ISR is misspelled, i.e. without __vector prefix. Enabled by default.
+ 
  mfract-convert-truncate
  Target Report Mask(FRACT_CONV_TRUNC)
  Allow to use truncation instead of rounding towards 0 for fractional int types.
diff -Nrcpad gcc-6.4.0/gcc/config/gnu-user.h gcc-6.5.0/gcc/config/gnu-user.h
*** gcc-6.4.0/gcc/config/gnu-user.h	Thu Feb 25 12:23:52 2016
--- gcc-6.5.0/gcc/config/gnu-user.h	Thu Jul 12 16:33:26 2018
*************** see the files COPYING3 and COPYING.RUNTI
*** 50,68 ****
  
  #if defined HAVE_LD_PIE
  #define GNU_USER_TARGET_STARTFILE_SPEC \
!   "%{!shared: %{pg|p|profile:gcrt1.o%s;: \
!     %{" PIE_SPEC ":Scrt1.o%s} %{" NO_PIE_SPEC ":crt1.o%s}}} \
!    crti.o%s %{static:crtbeginT.o%s;: %{shared:crtbeginS.o%s} \
! 	      %{" PIE_SPEC ":crtbeginS.o%s} \
! 	      %{" NO_PIE_SPEC ":crtbegin.o%s}} \
     %{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_start_preinit.o%s; \
       fvtable-verify=std:vtv_start.o%s} \
     " CRTOFFLOADBEGIN
  #else
  #define GNU_USER_TARGET_STARTFILE_SPEC \
!   "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
!    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
     %{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_start_preinit.o%s; \
       fvtable-verify=std:vtv_start.o%s} \
--- 50,77 ----
  
  #if defined HAVE_LD_PIE
  #define GNU_USER_TARGET_STARTFILE_SPEC \
!   "%{shared:; \
!      pg|p|profile:gcrt1.o%s; \
!      static:crt1.o%s; \
!      " PIE_SPEC ":Scrt1.o%s; \
!      :crt1.o%s} \
!    crti.o%s \
!    %{static:crtbeginT.o%s; \
!      shared|" PIE_SPEC ":crtbeginS.o%s; \
!      :crtbegin.o%s} \
     %{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_start_preinit.o%s; \
       fvtable-verify=std:vtv_start.o%s} \
     " CRTOFFLOADBEGIN
  #else
  #define GNU_USER_TARGET_STARTFILE_SPEC \
!   "%{shared:; \
!      pg|p|profile:gcrt1.o%s; \
!      :crt1.o%s} \
!    crti.o%s \
!    %{static:crtbeginT.o%s; \
!      shared|pie:crtbeginS.o%s; \
!      :crtbegin.o%s} \
     %{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_start_preinit.o%s; \
       fvtable-verify=std:vtv_start.o%s} \
*************** see the files COPYING3 and COPYING.RUNTI
*** 82,96 ****
    "%{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_end_preinit.o%s; \
       fvtable-verify=std:vtv_end.o%s} \
!    %{shared:crtendS.o%s;: %{" PIE_SPEC ":crtendS.o%s} \
!    %{" NO_PIE_SPEC ":crtend.o%s}} crtn.o%s \
     " CRTOFFLOADEND
  #else
  #define GNU_USER_TARGET_ENDFILE_SPEC \
    "%{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_end_preinit.o%s; \
       fvtable-verify=std:vtv_end.o%s} \
!    %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s \
     " CRTOFFLOADEND
  #endif
  #undef  ENDFILE_SPEC
--- 91,110 ----
    "%{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_end_preinit.o%s; \
       fvtable-verify=std:vtv_end.o%s} \
!    %{static:crtend.o%s; \
!      shared|" PIE_SPEC ":crtendS.o%s; \
!      :crtend.o%s} \
!    crtn.o%s \
     " CRTOFFLOADEND
  #else
  #define GNU_USER_TARGET_ENDFILE_SPEC \
    "%{fvtable-verify=none:%s; \
       fvtable-verify=preinit:vtv_end_preinit.o%s; \
       fvtable-verify=std:vtv_end.o%s} \
!    %{static:crtend.o%s; \
!      shared|pie:crtendS.o%s; \
!      :crtend.o%s} \
!    crtn.o%s \
     " CRTOFFLOADEND
  #endif
  #undef  ENDFILE_SPEC
*************** see the files COPYING3 and COPYING.RUNTI
*** 108,114 ****
  
  #define GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC \
    "%{shared:-lc} \
!    %{!shared:%{mieee-fp:-lieee} %{profile:-lc_p}%{!profile:-lc}}"
  
  #define GNU_USER_TARGET_LIB_SPEC \
    "%{pthread:-lpthread} " \
--- 122,128 ----
  
  #define GNU_USER_TARGET_NO_PTHREADS_LIB_SPEC \
    "%{shared:-lc} \
!    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
  
  #define GNU_USER_TARGET_LIB_SPEC \
    "%{pthread:-lpthread} " \
diff -Nrcpad gcc-6.4.0/gcc/config/i386/avx512fintrin.h gcc-6.5.0/gcc/config/i386/avx512fintrin.h
*** gcc-6.4.0/gcc/config/i386/avx512fintrin.h	Thu Jun  1 19:38:29 2017
--- gcc-6.5.0/gcc/config/i386/avx512fintrin.h	Fri Oct 12 12:38:28 2018
*************** _mm512_maskz_fnmsub_round_ps (__mmask16
*** 3312,3318 ****
      (__m512d)__builtin_ia32_vfmaddsubpd512_mask(A, B, C, -1, R)
  
  #define _mm512_mask_fmaddsub_round_pd(A, U, B, C, R)    \
!     (__m512d)__builtin_ia32_vfmaddpd512_mask(A, B, C, U, R)
  
  #define _mm512_mask3_fmaddsub_round_pd(A, B, C, U, R)   \
      (__m512d)__builtin_ia32_vfmaddsubpd512_mask3(A, B, C, U, R)
--- 3312,3318 ----
      (__m512d)__builtin_ia32_vfmaddsubpd512_mask(A, B, C, -1, R)
  
  #define _mm512_mask_fmaddsub_round_pd(A, U, B, C, R)    \
!     (__m512d)__builtin_ia32_vfmaddsubpd512_mask(A, B, C, U, R)
  
  #define _mm512_mask3_fmaddsub_round_pd(A, B, C, U, R)   \
      (__m512d)__builtin_ia32_vfmaddsubpd512_mask3(A, B, C, U, R)
diff -Nrcpad gcc-6.4.0/gcc/config/i386/constraints.md gcc-6.5.0/gcc/config/i386/constraints.md
*** gcc-6.4.0/gcc/config/i386/constraints.md	Wed May 25 08:04:09 2016
--- gcc-6.5.0/gcc/config/i386/constraints.md	Mon Apr 16 19:08:14 2018
***************
*** 172,185 ****
  
  (define_constraint "Bs"
    "@internal Sibcall memory operand."
!   (ior (and (not (match_test "TARGET_X32"))
  	    (match_operand 0 "sibcall_memory_operand"))
         (and (match_test "TARGET_X32 && Pmode == DImode")
  	    (match_operand 0 "GOT_memory_operand"))))
  
  (define_constraint "Bw"
    "@internal Call memory operand."
!   (ior (and (not (match_test "TARGET_X32"))
  	    (match_operand 0 "memory_operand"))
         (and (match_test "TARGET_X32 && Pmode == DImode")
  	    (match_operand 0 "GOT_memory_operand"))))
--- 172,187 ----
  
  (define_constraint "Bs"
    "@internal Sibcall memory operand."
!   (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
! 	    (not (match_test "TARGET_X32"))
  	    (match_operand 0 "sibcall_memory_operand"))
         (and (match_test "TARGET_X32 && Pmode == DImode")
  	    (match_operand 0 "GOT_memory_operand"))))
  
  (define_constraint "Bw"
    "@internal Call memory operand."
!   (ior (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
! 	    (not (match_test "TARGET_X32"))
  	    (match_operand 0 "memory_operand"))
         (and (match_test "TARGET_X32 && Pmode == DImode")
  	    (match_operand 0 "GOT_memory_operand"))))
diff -Nrcpad gcc-6.4.0/gcc/config/i386/gnu-user.h gcc-6.5.0/gcc/config/i386/gnu-user.h
*** gcc-6.4.0/gcc/config/i386/gnu-user.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/i386/gnu-user.h	Fri Oct 12 12:34:36 2018
*************** along with GCC; see the file COPYING3.
*** 67,73 ****
  
  #undef  ASM_SPEC
  #define ASM_SPEC \
!   "--32 %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}"
  
  #undef  SUBTARGET_EXTRA_SPECS
  #define SUBTARGET_EXTRA_SPECS \
--- 67,73 ----
  
  #undef  ASM_SPEC
  #define ASM_SPEC \
!   "--32 %{msse2avx:%{!mavx:-msse2avx}}"
  
  #undef  SUBTARGET_EXTRA_SPECS
  #define SUBTARGET_EXTRA_SPECS \
diff -Nrcpad gcc-6.4.0/gcc/config/i386/gnu-user64.h gcc-6.5.0/gcc/config/i386/gnu-user64.h
*** gcc-6.4.0/gcc/config/i386/gnu-user64.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/i386/gnu-user64.h	Fri Oct 12 12:34:36 2018
*************** see the files COPYING3 and COPYING.RUNTI
*** 50,56 ****
  #define ASM_SPEC "%{" SPEC_32 ":--32} \
   %{" SPEC_64 ":--64} \
   %{" SPEC_X32 ":--x32} \
!  %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}"
  
  #define GNU_USER_TARGET_LINK_SPEC				   \
                    "%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \
--- 50,56 ----
  #define ASM_SPEC "%{" SPEC_32 ":--32} \
   %{" SPEC_64 ":--64} \
   %{" SPEC_X32 ":--x32} \
!  %{msse2avx:%{!mavx:-msse2avx}}"
  
  #define GNU_USER_TARGET_LINK_SPEC				   \
                    "%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \
diff -Nrcpad gcc-6.4.0/gcc/config/i386/i386-opts.h gcc-6.5.0/gcc/config/i386/i386-opts.h
*** gcc-6.4.0/gcc/config/i386/i386-opts.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/i386/i386-opts.h	Mon Apr 16 18:50:52 2018
*************** enum stack_protector_guard {
*** 99,102 ****
--- 99,115 ----
    SSP_GLOBAL    /* global canary */
  };
  
+ /* This is used to mitigate variant #2 of the speculative execution
+    vulnerabilities on x86 processors identified by CVE-2017-5715, aka
+    Spectre.  They convert indirect branches and function returns to
+    call and return thunks to avoid speculative execution via indirect
+    call, jmp and ret.  */
+ enum indirect_branch {
+   indirect_branch_unset = 0,
+   indirect_branch_keep,
+   indirect_branch_thunk,
+   indirect_branch_thunk_inline,
+   indirect_branch_thunk_extern
+ };
+ 
  #endif
diff -Nrcpad gcc-6.4.0/gcc/config/i386/i386-protos.h gcc-6.5.0/gcc/config/i386/i386-protos.h
*** gcc-6.4.0/gcc/config/i386/i386-protos.h	Fri Apr 15 13:35:12 2016
--- gcc-6.5.0/gcc/config/i386/i386-protos.h	Mon Apr 16 19:06:32 2018
*************** extern enum attr_cpu ix86_schedule;
*** 311,316 ****
--- 311,320 ----
  #endif
  
  extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op);
+ extern const char * ix86_output_indirect_jmp (rtx call_op);
+ extern const char * ix86_output_function_return (bool long_p);
+ extern const char * ix86_output_indirect_function_return (rtx ret_op);
+ extern void ix86_split_simple_return_pop_internal (rtx);
  extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load,
  						enum machine_mode mode);
  
diff -Nrcpad gcc-6.4.0/gcc/config/i386/i386.c gcc-6.5.0/gcc/config/i386/i386.c
*** gcc-6.4.0/gcc/config/i386/i386.c	Fri May  5 21:51:14 2017
--- gcc-6.5.0/gcc/config/i386/i386.c	Fri Oct 12 17:34:07 2018
*************** struct GTY(()) stack_local_entry {
*** 2434,2486 ****
    struct stack_local_entry *next;
  };
  
- /* Structure describing stack frame layout.
-    Stack grows downward:
- 
-    [arguments]
- 					<- ARG_POINTER
-    saved pc
- 
-    saved static chain			if ix86_static_chain_on_stack
- 
-    saved frame pointer			if frame_pointer_needed
- 					<- HARD_FRAME_POINTER
-    [saved regs]
- 					<- regs_save_offset
-    [padding0]
- 
-    [saved SSE regs]
- 					<- sse_regs_save_offset
-    [padding1]          |
- 		       |		<- FRAME_POINTER
-    [va_arg registers]  |
- 		       |
-    [frame]	       |
- 		       |
-    [padding2]	       | = to_allocate
- 					<- STACK_POINTER
-   */
- struct ix86_frame
- {
-   int nsseregs;
-   int nregs;
-   int va_arg_size;
-   int red_zone_size;
-   int outgoing_arguments_size;
- 
-   /* The offsets relative to ARG_POINTER.  */
-   HOST_WIDE_INT frame_pointer_offset;
-   HOST_WIDE_INT hard_frame_pointer_offset;
-   HOST_WIDE_INT stack_pointer_offset;
-   HOST_WIDE_INT hfp_save_offset;
-   HOST_WIDE_INT reg_save_offset;
-   HOST_WIDE_INT sse_reg_save_offset;
- 
-   /* When save_regs_using_mov is set, emit prologue using
-      move instead of push instructions.  */
-   bool save_regs_using_mov;
- };
- 
  /* Which cpu are we scheduling for.  */
  enum attr_cpu ix86_schedule;
  
--- 2434,2439 ----
*************** static unsigned int ix86_function_arg_bo
*** 2572,2578 ****
  						const_tree);
  static rtx ix86_static_chain (const_tree, bool);
  static int ix86_function_regparm (const_tree, const_tree);
! static void ix86_compute_frame_layout (struct ix86_frame *);
  static bool ix86_expand_vector_init_one_nonzero (bool, machine_mode,
  						 rtx, rtx, int);
  static void ix86_add_new_builtins (HOST_WIDE_INT);
--- 2525,2531 ----
  						const_tree);
  static rtx ix86_static_chain (const_tree, bool);
  static int ix86_function_regparm (const_tree, const_tree);
! static void ix86_compute_frame_layout (void);
  static bool ix86_expand_vector_init_one_nonzero (bool, machine_mode,
  						 rtx, rtx, int);
  static void ix86_add_new_builtins (HOST_WIDE_INT);
*************** rest_of_handle_insert_vzeroupper (void)
*** 2675,2681 ****
    int i;
  
    /* vzeroupper instructions are inserted immediately after reload to
!      account for possible spills from 256bit registers.  The pass
       reuses mode switching infrastructure by re-running mode insertion
       pass, so disable entities that have already been processed.  */
    for (i = 0; i < MAX_386_ENTITIES; i++)
--- 2628,2634 ----
    int i;
  
    /* vzeroupper instructions are inserted immediately after reload to
!      account for possible spills from 256bit or 512bit registers.  The pass
       reuses mode switching infrastructure by re-running mode insertion
       pass, so disable entities that have already been processed.  */
    for (i = 0; i < MAX_386_ENTITIES; i++)
*************** public:
*** 3650,3656 ****
    /* opt_pass methods: */
    virtual bool gate (function *)
      {
!       return TARGET_AVX && !TARGET_AVX512F
  	     && TARGET_VZEROUPPER && flag_expensive_optimizations
  	     && !optimize_size;
      }
--- 3603,3609 ----
    /* opt_pass methods: */
    virtual bool gate (function *)
      {
!       return TARGET_AVX
  	     && TARGET_VZEROUPPER && flag_expensive_optimizations
  	     && !optimize_size;
      }
*************** make_pass_stv (gcc::context *ctxt)
*** 3709,3720 ****
    return new pass_stv (ctxt);
  }
  
! /* Return true if a red-zone is in use.  */
  
  bool
  ix86_using_red_zone (void)
  {
!   return TARGET_RED_ZONE && !TARGET_64BIT_MS_ABI;
  }
  
  /* Return a string that documents the current -m options.  The caller is
--- 3662,3684 ----
    return new pass_stv (ctxt);
  }
  
! /* Return true if a red-zone is in use.  We can't use red-zone when
!    there are local indirect jumps, like "indirect_jump" or "tablejump",
!    which jumps to another place in the function, since "call" in the
!    indirect thunk pushes the return address onto stack, destroying
!    red-zone.
! 
!    TODO: If we can reserve the first 2 WORDs, for PUSH and, another
!    for CALL, in red-zone, we can allow local indirect jumps with
!    indirect thunk.  */
  
  bool
  ix86_using_red_zone (void)
  {
!   return (TARGET_RED_ZONE
! 	  && !TARGET_64BIT_MS_ABI
! 	  && (!cfun->machine->has_local_indirect_jump
! 	      || cfun->machine->indirect_branch_type == indirect_branch_keep));
  }
  
  /* Return a string that documents the current -m options.  The caller is
*************** ix86_option_override_internal (bool main
*** 5196,5201 ****
--- 5160,5171 ----
      opts->x_ix86_isa_flags
        |= OPTION_MASK_ISA_LZCNT & ~opts->x_ix86_isa_flags_explicit;
  
+   /* Disable BMI, BMI2 and TBM instructions for -m16.  */
+   if (TARGET_16BIT_P(opts->x_ix86_isa_flags))
+     opts->x_ix86_isa_flags
+       &= ~((OPTION_MASK_ISA_BMI | OPTION_MASK_ISA_BMI2 | OPTION_MASK_ISA_TBM)
+ 	   & ~opts->x_ix86_isa_flags_explicit);
+ 
    /* Validate -mpreferred-stack-boundary= value or default it to
       PREFERRED_STACK_BOUNDARY_DEFAULT.  */
    ix86_preferred_stack_boundary = PREFERRED_STACK_BOUNDARY_DEFAULT;
*************** ix86_option_override_internal (bool main
*** 5464,5470 ****
  #endif
     }
  
!   if (!(opts_set->x_target_flags & MASK_VZEROUPPER))
      opts->x_target_flags |= MASK_VZEROUPPER;
    if (!(opts_set->x_target_flags & MASK_STV))
      opts->x_target_flags |= MASK_STV;
--- 5434,5441 ----
  #endif
     }
  
!   if (!(opts_set->x_target_flags & MASK_VZEROUPPER)
!       && TARGET_EMIT_VZEROUPPER)
      opts->x_target_flags |= MASK_VZEROUPPER;
    if (!(opts_set->x_target_flags & MASK_STV))
      opts->x_target_flags |= MASK_STV;
*************** ix86_option_override_internal (bool main
*** 5552,5563 ****
    gcc_assert ((opts->x_target_flags & MASK_LONG_DOUBLE_64) == 0
  	      || (opts->x_target_flags & MASK_LONG_DOUBLE_128) == 0);
  
-   /* Save the initial options in case the user does function specific
-      options.  */
-   if (main_args_p)
-     target_option_default_node = target_option_current_node
-       = build_target_option_node (opts);
- 
    /* Handle stack protector */
    if (!opts_set->x_ix86_stack_protector_guard)
      opts->x_ix86_stack_protector_guard
--- 5523,5528 ----
*************** ix86_option_override_internal (bool main
*** 5577,5582 ****
--- 5542,5553 ----
        ix86_parse_stringop_strategy_string (str, true);
        free (str);
      }
+ 
+   /* Save the initial options in case the user does function specific
+      options.  */
+   if (main_args_p)
+     target_option_default_node = target_option_current_node
+       = build_target_option_node (opts);
  }
  
  /* Implement the TARGET_OPTION_OVERRIDE hook.  */
*************** ix86_reset_previous_fndecl (void)
*** 6390,6395 ****
--- 6361,6448 ----
    ix86_previous_fndecl = NULL_TREE;
  }
  
+ /* Set the indirect_branch_type field from the function FNDECL.  */
+ 
+ static void
+ ix86_set_indirect_branch_type (tree fndecl)
+ {
+   if (cfun->machine->indirect_branch_type == indirect_branch_unset)
+     {
+       tree attr = lookup_attribute ("indirect_branch",
+ 				    DECL_ATTRIBUTES (fndecl));
+       if (attr != NULL)
+ 	{
+ 	  tree args = TREE_VALUE (attr);
+ 	  if (args == NULL)
+ 	    gcc_unreachable ();
+ 	  tree cst = TREE_VALUE (args);
+ 	  if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
+ 	    cfun->machine->indirect_branch_type = indirect_branch_keep;
+ 	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
+ 	    cfun->machine->indirect_branch_type = indirect_branch_thunk;
+ 	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
+ 	    cfun->machine->indirect_branch_type = indirect_branch_thunk_inline;
+ 	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
+ 	    cfun->machine->indirect_branch_type = indirect_branch_thunk_extern;
+ 	  else
+ 	    gcc_unreachable ();
+ 	}
+       else
+ 	cfun->machine->indirect_branch_type = ix86_indirect_branch;
+ 
+       /* -mcmodel=large is not compatible with -mindirect-branch=thunk
+ 	 nor -mindirect-branch=thunk-extern.  */
+       if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
+ 	  && ((cfun->machine->indirect_branch_type
+ 	       == indirect_branch_thunk_extern)
+ 	      || (cfun->machine->indirect_branch_type
+ 		  == indirect_branch_thunk)))
+ 	error ("%<-mindirect-branch=%s%> and %<-mcmodel=large%> are not "
+ 	       "compatible",
+ 	       ((cfun->machine->indirect_branch_type
+ 		 == indirect_branch_thunk_extern)
+ 		? "thunk-extern" : "thunk"));
+     }
+ 
+   if (cfun->machine->function_return_type == indirect_branch_unset)
+     {
+       tree attr = lookup_attribute ("function_return",
+ 				    DECL_ATTRIBUTES (fndecl));
+       if (attr != NULL)
+ 	{
+ 	  tree args = TREE_VALUE (attr);
+ 	  if (args == NULL)
+ 	    gcc_unreachable ();
+ 	  tree cst = TREE_VALUE (args);
+ 	  if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0)
+ 	    cfun->machine->function_return_type = indirect_branch_keep;
+ 	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0)
+ 	    cfun->machine->function_return_type = indirect_branch_thunk;
+ 	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0)
+ 	    cfun->machine->function_return_type = indirect_branch_thunk_inline;
+ 	  else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0)
+ 	    cfun->machine->function_return_type = indirect_branch_thunk_extern;
+ 	  else
+ 	    gcc_unreachable ();
+ 	}
+       else
+ 	cfun->machine->function_return_type = ix86_function_return;
+ 
+       /* -mcmodel=large is not compatible with -mfunction-return=thunk
+ 	 nor -mfunction-return=thunk-extern.  */
+       if ((ix86_cmodel == CM_LARGE || ix86_cmodel == CM_LARGE_PIC)
+ 	  && ((cfun->machine->function_return_type
+ 	       == indirect_branch_thunk_extern)
+ 	      || (cfun->machine->function_return_type
+ 		  == indirect_branch_thunk)))
+ 	error ("%<-mfunction-return=%s%> and %<-mcmodel=large%> are not "
+ 	       "compatible",
+ 	       ((cfun->machine->function_return_type
+ 		 == indirect_branch_thunk_extern)
+ 		? "thunk-extern" : "thunk"));
+     }
+ }
+ 
  /* Establish appropriate back-end context for processing the function
     FNDECL.  The argument might be NULL to indicate processing at top
     level, outside of any function scope.  */
*************** ix86_set_current_function (tree fndecl)
*** 6400,6406 ****
       several times in the course of compiling a function, and we don't want to
       slow things down too much or call target_reinit when it isn't safe.  */
    if (fndecl == ix86_previous_fndecl)
!     return;
  
    tree old_tree;
    if (ix86_previous_fndecl == NULL_TREE)
--- 6453,6465 ----
       several times in the course of compiling a function, and we don't want to
       slow things down too much or call target_reinit when it isn't safe.  */
    if (fndecl == ix86_previous_fndecl)
!     {
!       /* There may be 2 function bodies for the same function FNDECL,
! 	 one is extern inline and one isn't.  */
!       if (fndecl != NULL_TREE)
! 	ix86_set_indirect_branch_type (fndecl);
!       return;
!     }
  
    tree old_tree;
    if (ix86_previous_fndecl == NULL_TREE)
*************** ix86_set_current_function (tree fndecl)
*** 6417,6422 ****
--- 6476,6483 ----
        return;
      }
  
+   ix86_set_indirect_branch_type (fndecl);
+ 
    tree new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl);
    if (new_tree == NULL_TREE)
      new_tree = target_option_default_node;
*************** symbolic_reference_mentioned_p (rtx op)
*** 10927,10933 ****
  bool
  ix86_can_use_return_insn_p (void)
  {
-   struct ix86_frame frame;
  
    if (! reload_completed || frame_pointer_needed)
      return 0;
--- 10988,10993 ----
*************** ix86_can_use_return_insn_p (void)
*** 10937,10943 ****
    if (crtl->args.pops_args && crtl->args.size >= 32768)
      return 0;
  
!   ix86_compute_frame_layout (&frame);
    return (frame.stack_pointer_offset == UNITS_PER_WORD
  	  && (frame.nregs + frame.nsseregs) == 0);
  }
--- 10997,11004 ----
    if (crtl->args.pops_args && crtl->args.size >= 32768)
      return 0;
  
!   ix86_compute_frame_layout ();
!   struct ix86_frame &frame = cfun->machine->frame;
    return (frame.stack_pointer_offset == UNITS_PER_WORD
  	  && (frame.nregs + frame.nsseregs) == 0);
  }
*************** ix86_setup_frame_addresses (void)
*** 11002,11007 ****
--- 11063,11309 ----
  # endif
  #endif
  
+ /* Label count for call and return thunks.  It is used to make unique
+    labels in call and return thunks.  */
+ static int indirectlabelno;
+ 
+ /* True if call thunk function is needed.  */
+ static bool indirect_thunk_needed = false;
+ /* True if call thunk function with the BND prefix is needed.  */
+ static bool indirect_thunk_bnd_needed = false;
+ 
+ /* Bit masks of integer registers, which contain branch target, used
+    by call thunk functions.  */
+ static int indirect_thunks_used;
+ /* Bit masks of integer registers, which contain branch target, used
+    by call thunk functions with the BND prefix.  */
+ static int indirect_thunks_bnd_used;
+ 
+ /* True if return thunk function is needed.  */
+ static bool indirect_return_needed = false;
+ /* True if return thunk function with the BND prefix is needed.  */
+ static bool indirect_return_bnd_needed = false;
+ 
+ /* True if return thunk function via CX is needed.  */
+ static bool indirect_return_via_cx;
+ /* True if return thunk function via CX with the BND prefix is
+    needed.  */
+ static bool indirect_return_via_cx_bnd;
+ 
+ #ifndef INDIRECT_LABEL
+ # define INDIRECT_LABEL "LIND"
+ #endif
+ 
+ /* Fills in the label name that should be used for the indirect thunk.  */
+ 
+ static void
+ indirect_thunk_name (char name[32], unsigned int regno,
+ 		     bool need_bnd_p, bool ret_p)
+ {
+   if (regno != INVALID_REGNUM && regno != CX_REG && ret_p)
+     gcc_unreachable ();
+ 
+   if (USE_HIDDEN_LINKONCE)
+     {
+       const char *bnd = need_bnd_p ? "_bnd" : "";
+       const char *ret = ret_p ? "return" : "indirect";
+       if (regno != INVALID_REGNUM)
+ 	{
+ 	  const char *reg_prefix;
+ 	  if (LEGACY_INT_REGNO_P (regno))
+ 	    reg_prefix = TARGET_64BIT ? "r" : "e";
+ 	  else
+ 	    reg_prefix = "";
+ 	  sprintf (name, "__x86_%s_thunk%s_%s%s",
+ 		   ret, bnd, reg_prefix, reg_names[regno]);
+ 	}
+       else
+ 	sprintf (name, "__x86_%s_thunk%s", ret, bnd);
+     }
+   else
+     {
+       if (regno != INVALID_REGNUM)
+ 	{
+ 	  if (need_bnd_p)
+ 	    ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno);
+ 	  else
+ 	    ASM_GENERATE_INTERNAL_LABEL (name, "LITR", regno);
+ 	}
+       else
+ 	{
+ 	  if (ret_p)
+ 	    {
+ 	      if (need_bnd_p)
+ 		ASM_GENERATE_INTERNAL_LABEL (name, "LRTB", 0);
+ 	      else
+ 		ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0);
+ 	    }
+ 	  else
+ 	    {
+ 	      if (need_bnd_p)
+ 		ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0);
+ 	      else
+ 		ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
+ 	    }
+ 	}
+     }
+ }
+ 
+ /* Output a call and return thunk for indirect branch.  If BND_P is
+    true, the BND prefix is needed.   If REGNO != -1,  the function
+    address is in REGNO and the call and return thunk looks like:
+ 
+ 	call	L2
+    L1:
+ 	pause
+ 	jmp	L1
+    L2:
+ 	mov	%REG, (%sp)
+ 	ret
+ 
+    Otherwise, the function address is on the top of stack and the
+    call and return thunk looks like:
+ 
+ 	call L2
+   L1:
+ 	pause
+ 	jmp L1
+   L2:
+ 	lea WORD_SIZE(%sp), %sp
+ 	ret
+  */
+ 
+ static void
+ output_indirect_thunk (bool need_bnd_p, unsigned int regno)
+ {
+   char indirectlabel1[32];
+   char indirectlabel2[32];
+ 
+   ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, INDIRECT_LABEL,
+ 			       indirectlabelno++);
+   ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, INDIRECT_LABEL,
+ 			       indirectlabelno++);
+ 
+   /* Call */
+   if (need_bnd_p)
+     fputs ("\tbnd call\t", asm_out_file);
+   else
+     fputs ("\tcall\t", asm_out_file);
+   assemble_name_raw (asm_out_file, indirectlabel2);
+   fputc ('\n', asm_out_file);
+ 
+   ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
+ 
+   /* Pause + lfence.  */
+   fprintf (asm_out_file, "\tpause\n\tlfence\n");
+ 
+   /* Jump.  */
+   fputs ("\tjmp\t", asm_out_file);
+   assemble_name_raw (asm_out_file, indirectlabel1);
+   fputc ('\n', asm_out_file);
+ 
+   ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
+ 
+   if (regno != INVALID_REGNUM)
+     {
+       /* MOV.  */
+       rtx xops[2];
+       xops[0] = gen_rtx_MEM (word_mode, stack_pointer_rtx);
+       xops[1] = gen_rtx_REG (word_mode, regno);
+       output_asm_insn ("mov\t{%1, %0|%0, %1}", xops);
+     }
+   else
+     {
+       /* LEA.  */
+       rtx xops[2];
+       xops[0] = stack_pointer_rtx;
+       xops[1] = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD);
+       output_asm_insn ("lea\t{%E1, %0|%0, %E1}", xops);
+     }
+ 
+   if (need_bnd_p)
+     fputs ("\tbnd ret\n", asm_out_file);
+   else
+     fputs ("\tret\n", asm_out_file);
+ }
+ 
+ /* Output a funtion with a call and return thunk for indirect branch.
+    If BND_P is true, the BND prefix is needed.  If REGNO != INVALID_REGNUM,
+    the function address is in REGNO.  Otherwise, the function address is
+    on the top of stack.  Thunk is used for function return if RET_P is
+    true.  */
+ 
+ static void
+ output_indirect_thunk_function (bool need_bnd_p, unsigned int regno,
+ 				bool ret_p)
+ {
+   char name[32];
+   tree decl;
+ 
+   /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd.  */
+   indirect_thunk_name (name, regno, need_bnd_p, ret_p);
+   decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
+ 		     get_identifier (name),
+ 		     build_function_type_list (void_type_node, NULL_TREE));
+   DECL_RESULT (decl) = build_decl (BUILTINS_LOCATION, RESULT_DECL,
+ 				   NULL_TREE, void_type_node);
+   TREE_PUBLIC (decl) = 1;
+   TREE_STATIC (decl) = 1;
+   DECL_IGNORED_P (decl) = 1;
+ 
+ #if TARGET_MACHO
+   if (TARGET_MACHO)
+     {
+       switch_to_section (darwin_sections[picbase_thunk_section]);
+       fputs ("\t.weak_definition\t", asm_out_file);
+       assemble_name (asm_out_file, name);
+       fputs ("\n\t.private_extern\t", asm_out_file);
+       assemble_name (asm_out_file, name);
+       putc ('\n', asm_out_file);
+       ASM_OUTPUT_LABEL (asm_out_file, name);
+       DECL_WEAK (decl) = 1;
+     }
+   else
+ #endif
+     if (USE_HIDDEN_LINKONCE)
+       {
+ 	cgraph_node::create (decl)->set_comdat_group (DECL_ASSEMBLER_NAME (decl));
+ 
+ 	targetm.asm_out.unique_section (decl, 0);
+ 	switch_to_section (get_named_section (decl, NULL, 0));
+ 
+ 	targetm.asm_out.globalize_label (asm_out_file, name);
+ 	fputs ("\t.hidden\t", asm_out_file);
+ 	assemble_name (asm_out_file, name);
+ 	putc ('\n', asm_out_file);
+ 	ASM_DECLARE_FUNCTION_NAME (asm_out_file, name, decl);
+       }
+     else
+       {
+ 	switch_to_section (text_section);
+ 	ASM_OUTPUT_LABEL (asm_out_file, name);
+       }
+ 
+   DECL_INITIAL (decl) = make_node (BLOCK);
+   current_function_decl = decl;
+   allocate_struct_function (decl, false);
+   init_function_start (decl);
+   /* We're about to hide the function body from callees of final_* by
+      emitting it directly; tell them we're a thunk, if they care.  */
+   cfun->is_thunk = true;
+   first_function_block_is_cold = false;
+   /* Make sure unwind info is emitted for the thunk if needed.  */
+   final_start_function (emit_barrier (), asm_out_file, 1);
+ 
+   output_indirect_thunk (need_bnd_p, regno);
+ 
+   final_end_function ();
+   init_insn_lengths ();
+   free_after_compilation (cfun);
+   set_cfun (NULL);
+   current_function_decl = NULL;
+ }
+ 
  static int pic_labels_used;
  
  /* Fills in the label name that should be used for a pc thunk for
*************** static void
*** 11026,11038 ****
  ix86_code_end (void)
  {
    rtx xops[2];
!   int regno;
  
    for (regno = AX_REG; regno <= SP_REG; regno++)
      {
        char name[32];
        tree decl;
  
        if (!(pic_labels_used & (1 << regno)))
  	continue;
  
--- 11328,11371 ----
  ix86_code_end (void)
  {
    rtx xops[2];
!   unsigned int regno;
! 
!   if (indirect_return_needed)
!     output_indirect_thunk_function (false, INVALID_REGNUM, true);
!   if (indirect_return_bnd_needed)
!     output_indirect_thunk_function (true, INVALID_REGNUM, true);
! 
!   if (indirect_return_via_cx)
!     output_indirect_thunk_function (false, CX_REG, true);
!   if (indirect_return_via_cx_bnd)
!     output_indirect_thunk_function (true, CX_REG, true);
! 
!   if (indirect_thunk_needed)
!     output_indirect_thunk_function (false, INVALID_REGNUM, false);
!   if (indirect_thunk_bnd_needed)
!     output_indirect_thunk_function (true, INVALID_REGNUM, false);
! 
!   for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++)
!     {
!       unsigned int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1;
!       if ((indirect_thunks_used & (1 << i)))
! 	output_indirect_thunk_function (false, regno, false);
! 
!       if ((indirect_thunks_bnd_used & (1 << i)))
! 	output_indirect_thunk_function (true, regno, false);
!     }
  
    for (regno = AX_REG; regno <= SP_REG; regno++)
      {
        char name[32];
        tree decl;
  
+       if ((indirect_thunks_used & (1 << regno)))
+ 	output_indirect_thunk_function (false, regno, false);
+ 
+       if ((indirect_thunks_bnd_used & (1 << regno)))
+ 	output_indirect_thunk_function (true, regno, false);
+ 
        if (!(pic_labels_used & (1 << regno)))
  	continue;
  
*************** ix86_can_eliminate (const int from, cons
*** 11348,11355 ****
  HOST_WIDE_INT
  ix86_initial_elimination_offset (int from, int to)
  {
!   struct ix86_frame frame;
!   ix86_compute_frame_layout (&frame);
  
    if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
      return frame.hard_frame_pointer_offset;
--- 11681,11688 ----
  HOST_WIDE_INT
  ix86_initial_elimination_offset (int from, int to)
  {
!   ix86_compute_frame_layout ();
!   struct ix86_frame &frame = cfun->machine->frame;
  
    if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM)
      return frame.hard_frame_pointer_offset;
*************** ix86_builtin_setjmp_frame_value (void)
*** 11388,11395 ****
  /* Fill structure ix86_frame about frame of currently computed function.  */
  
  static void
! ix86_compute_frame_layout (struct ix86_frame *frame)
  {
    unsigned HOST_WIDE_INT stack_alignment_needed;
    HOST_WIDE_INT offset;
    unsigned HOST_WIDE_INT preferred_alignment;
--- 11721,11729 ----
  /* Fill structure ix86_frame about frame of currently computed function.  */
  
  static void
! ix86_compute_frame_layout (void)
  {
+   struct ix86_frame *frame = &cfun->machine->frame;
    unsigned HOST_WIDE_INT stack_alignment_needed;
    HOST_WIDE_INT offset;
    unsigned HOST_WIDE_INT preferred_alignment;
*************** ix86_expand_prologue (void)
*** 12672,12678 ****
  {
    struct machine_function *m = cfun->machine;
    rtx insn, t;
-   struct ix86_frame frame;
    HOST_WIDE_INT allocate;
    bool int_registers_saved;
    bool sse_registers_saved;
--- 13006,13011 ----
*************** ix86_expand_prologue (void)
*** 12695,12701 ****
    m->fs.sp_offset = INCOMING_FRAME_SP_OFFSET;
    m->fs.sp_valid = true;
  
!   ix86_compute_frame_layout (&frame);
  
    if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl))
      {
--- 13028,13035 ----
    m->fs.sp_offset = INCOMING_FRAME_SP_OFFSET;
    m->fs.sp_valid = true;
  
!   ix86_compute_frame_layout ();
!   const struct ix86_frame &frame = cfun->machine->frame;
  
    if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl))
      {
*************** ix86_expand_epilogue (int style)
*** 13367,13378 ****
  {
    struct machine_function *m = cfun->machine;
    struct machine_frame_state frame_state_save = m->fs;
-   struct ix86_frame frame;
    bool restore_regs_via_mov;
    bool using_drap;
  
    ix86_finalize_stack_realign_flags ();
!   ix86_compute_frame_layout (&frame);
  
    m->fs.sp_valid = (!frame_pointer_needed
  		    || (crtl->sp_is_unchanging
--- 13701,13712 ----
  {
    struct machine_function *m = cfun->machine;
    struct machine_frame_state frame_state_save = m->fs;
    bool restore_regs_via_mov;
    bool using_drap;
  
    ix86_finalize_stack_realign_flags ();
!   ix86_compute_frame_layout ();
!   const struct ix86_frame &frame = cfun->machine->frame;
  
    m->fs.sp_valid = (!frame_pointer_needed
  		    || (crtl->sp_is_unchanging
*************** ix86_expand_epilogue (int style)
*** 13414,13424 ****
  				  + UNITS_PER_WORD);
      }
  
    /* Special care must be taken for the normal return case of a function
       using eh_return: the eax and edx registers are marked as saved, but
       not restored along this path.  Adjust the save location to match.  */
    if (crtl->calls_eh_return && style != 2)
!     frame.reg_save_offset -= 2 * UNITS_PER_WORD;
  
    /* EH_RETURN requires the use of moves to function properly.  */
    if (crtl->calls_eh_return)
--- 13748,13760 ----
  				  + UNITS_PER_WORD);
      }
  
+   HOST_WIDE_INT reg_save_offset = frame.reg_save_offset;
+ 
    /* Special care must be taken for the normal return case of a function
       using eh_return: the eax and edx registers are marked as saved, but
       not restored along this path.  Adjust the save location to match.  */
    if (crtl->calls_eh_return && style != 2)
!     reg_save_offset -= 2 * UNITS_PER_WORD;
  
    /* EH_RETURN requires the use of moves to function properly.  */
    if (crtl->calls_eh_return)
*************** ix86_expand_epilogue (int style)
*** 13434,13444 ****
    else if (TARGET_EPILOGUE_USING_MOVE
  	   && cfun->machine->use_fast_prologue_epilogue
  	   && (frame.nregs > 1
! 	       || m->fs.sp_offset != frame.reg_save_offset))
      restore_regs_via_mov = true;
    else if (frame_pointer_needed
  	   && !frame.nregs
! 	   && m->fs.sp_offset != frame.reg_save_offset)
      restore_regs_via_mov = true;
    else if (frame_pointer_needed
  	   && TARGET_USE_LEAVE
--- 13770,13780 ----
    else if (TARGET_EPILOGUE_USING_MOVE
  	   && cfun->machine->use_fast_prologue_epilogue
  	   && (frame.nregs > 1
! 	       || m->fs.sp_offset != reg_save_offset))
      restore_regs_via_mov = true;
    else if (frame_pointer_needed
  	   && !frame.nregs
! 	   && m->fs.sp_offset != reg_save_offset)
      restore_regs_via_mov = true;
    else if (frame_pointer_needed
  	   && TARGET_USE_LEAVE
*************** ix86_expand_epilogue (int style)
*** 13476,13482 ****
        rtx t;
  
        if (frame.nregs)
! 	ix86_emit_restore_regs_using_mov (frame.reg_save_offset, style == 2);
  
        /* eh_return epilogues need %ecx added to the stack pointer.  */
        if (style == 2)
--- 13812,13818 ----
        rtx t;
  
        if (frame.nregs)
! 	ix86_emit_restore_regs_using_mov (reg_save_offset, style == 2);
  
        /* eh_return epilogues need %ecx added to the stack pointer.  */
        if (style == 2)
*************** ix86_expand_epilogue (int style)
*** 13566,13584 ****
  	 epilogues.  */
        if (!m->fs.sp_valid
   	  || (TARGET_SEH
! 	      && (m->fs.sp_offset - frame.reg_save_offset
  		  >= SEH_MAX_FRAME_SIZE)))
  	{
  	  pro_epilogue_adjust_stack (stack_pointer_rtx, hard_frame_pointer_rtx,
  				     GEN_INT (m->fs.fp_offset
! 					      - frame.reg_save_offset),
  				     style, false);
  	}
!       else if (m->fs.sp_offset != frame.reg_save_offset)
  	{
  	  pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx,
  				     GEN_INT (m->fs.sp_offset
! 					      - frame.reg_save_offset),
  				     style,
  				     m->fs.cfa_reg == stack_pointer_rtx);
  	}
--- 13902,13920 ----
  	 epilogues.  */
        if (!m->fs.sp_valid
   	  || (TARGET_SEH
! 	      && (m->fs.sp_offset - reg_save_offset
  		  >= SEH_MAX_FRAME_SIZE)))
  	{
  	  pro_epilogue_adjust_stack (stack_pointer_rtx, hard_frame_pointer_rtx,
  				     GEN_INT (m->fs.fp_offset
! 					      - reg_save_offset),
  				     style, false);
  	}
!       else if (m->fs.sp_offset != reg_save_offset)
  	{
  	  pro_epilogue_adjust_stack (stack_pointer_rtx, stack_pointer_rtx,
  				     GEN_INT (m->fs.sp_offset
! 					      - reg_save_offset),
  				     style,
  				     m->fs.cfa_reg == stack_pointer_rtx);
  	}
*************** static GTY(()) rtx split_stack_fn_large;
*** 13857,13863 ****
  void
  ix86_expand_split_stack_prologue (void)
  {
-   struct ix86_frame frame;
    HOST_WIDE_INT allocate;
    unsigned HOST_WIDE_INT args_size;
    rtx_code_label *label;
--- 14193,14198 ----
*************** ix86_expand_split_stack_prologue (void)
*** 13869,13875 ****
    gcc_assert (flag_split_stack && reload_completed);
  
    ix86_finalize_stack_realign_flags ();
!   ix86_compute_frame_layout (&frame);
    allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
  
    /* This is the label we will branch to if we have enough stack
--- 14204,14211 ----
    gcc_assert (flag_split_stack && reload_completed);
  
    ix86_finalize_stack_realign_flags ();
!   ix86_compute_frame_layout ();
!   struct ix86_frame &frame = cfun->machine->frame;
    allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET;
  
    /* This is the label we will branch to if we have enough stack
*************** put_condition_code (enum rtx_code code,
*** 16549,16554 ****
--- 16885,16891 ----
     If CODE is 'h', pretend the reg is the 'high' byte register.
     If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op.
     If CODE is 'd', duplicate the operand for AVX instruction.
+    If CODE is 'V', print naked full integer register name without %.
   */
  
  void
*************** print_reg (rtx x, int code, FILE *file)
*** 16559,16565 ****
    unsigned int regno;
    bool duplicated;
  
!   if (ASSEMBLER_DIALECT == ASM_ATT)
      putc ('%', file);
  
    if (x == pc_rtx)
--- 16896,16902 ----
    unsigned int regno;
    bool duplicated;
  
!   if (ASSEMBLER_DIALECT == ASM_ATT && code != 'V')
      putc ('%', file);
  
    if (x == pc_rtx)
*************** print_reg (rtx x, int code, FILE *file)
*** 16602,16607 ****
--- 16939,16952 ----
  	      && regno != FPSR_REG
  	      && regno != FPCR_REG);
  
+   if (code == 'V')
+     {
+       if (GENERAL_REGNO_P (regno))
+ 	msize = GET_MODE_SIZE (word_mode);
+       else
+ 	error ("'V' modifier on non-integer register");
+     }
+ 
    duplicated = code == 'd' && TARGET_AVX;
  
    switch (msize)
*************** print_reg (rtx x, int code, FILE *file)
*** 16715,16720 ****
--- 17060,17066 ----
     & -- print some in-use local-dynamic symbol name.
     H -- print a memory address offset by 8; used for sse high-parts
     Y -- print condition for XOP pcom* instruction.
+    V -- print naked full integer register name without %.
     + -- print a branch hint as 'cs' or 'ds' prefix
     ; -- print a semicolon (after prefixes due to bug in older gas).
     ~ -- print "i" if TARGET_AVX2, "f" otherwise.
*************** ix86_print_operand (FILE *file, rtx x, i
*** 16939,16944 ****
--- 17285,17291 ----
  	case 'X':
  	case 'P':
  	case 'p':
+ 	case 'V':
  	  break;
  
  	case 's':
*************** ix86_print_operand (FILE *file, rtx x, i
*** 17389,17395 ****
  	 since we can in fact encode that into an immediate.  */
        if (GET_CODE (x) == CONST_VECTOR)
  	{
! 	  gcc_assert (x == CONST0_RTX (GET_MODE (x)));
  	  x = const0_rtx;
  	}
  
--- 17736,17743 ----
  	 since we can in fact encode that into an immediate.  */
        if (GET_CODE (x) == CONST_VECTOR)
  	{
! 	  if (x != CONST0_RTX (GET_MODE (x)))
! 	    output_operand_lossage ("invalid vector immediate");
  	  x = const0_rtx;
  	}
  
*************** ix86_print_operand_address_as (FILE *fil
*** 17521,17527 ****
        /* Displacement only requires special attention.  */
        if (CONST_INT_P (disp))
  	{
! 	  if (ASSEMBLER_DIALECT == ASM_INTEL && parts.seg == ADDR_SPACE_GENERIC)
  	    fputs ("ds:", file);
  	  fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (disp));
  	}
--- 17869,17875 ----
        /* Displacement only requires special attention.  */
        if (CONST_INT_P (disp))
  	{
! 	  if (ASSEMBLER_DIALECT == ASM_INTEL && ADDR_SPACE_GENERIC_P (as))
  	    fputs ("ds:", file);
  	  fprintf (file, HOST_WIDE_INT_PRINT_DEC, INTVAL (disp));
  	}
*************** output_387_binary_op (rtx insn, rtx *ope
*** 18019,18034 ****
    return buf;
  }
  
! /* Check if a 256bit AVX register is referenced inside of EXP.   */
  
  static bool
! ix86_check_avx256_register (const_rtx exp)
  {
    if (SUBREG_P (exp))
      exp = SUBREG_REG (exp);
  
    return (REG_P (exp)
! 	  && VALID_AVX256_REG_OR_OI_MODE (GET_MODE (exp)));
  }
  
  /* Return needed mode for entity in optimize_mode_switching pass.  */
--- 18367,18383 ----
    return buf;
  }
  
! /* Check if a 256bit or 512 bit AVX register is referenced inside of EXP.   */
  
  static bool
! ix86_check_avx_upper_register (const_rtx exp)
  {
    if (SUBREG_P (exp))
      exp = SUBREG_REG (exp);
  
    return (REG_P (exp)
! 	&& (VALID_AVX256_REG_OR_OI_MODE (GET_MODE (exp))
! 	|| VALID_AVX512F_REG_OR_XI_MODE (GET_MODE (exp))));
  }
  
  /* Return needed mode for entity in optimize_mode_switching pass.  */
*************** ix86_avx_u128_mode_needed (rtx_insn *ins
*** 18041,18047 ****
        rtx link;
  
        /* Needed mode is set to AVX_U128_CLEAN if there are
! 	 no 256bit modes used in function arguments.  */
        for (link = CALL_INSN_FUNCTION_USAGE (insn);
  	   link;
  	   link = XEXP (link, 1))
--- 18390,18396 ----
        rtx link;
  
        /* Needed mode is set to AVX_U128_CLEAN if there are
! 	 no 256bit or 512bit modes used in function arguments. */
        for (link = CALL_INSN_FUNCTION_USAGE (insn);
  	   link;
  	   link = XEXP (link, 1))
*************** ix86_avx_u128_mode_needed (rtx_insn *ins
*** 18050,18056 ****
  	    {
  	      rtx arg = XEXP (XEXP (link, 0), 0);
  
! 	      if (ix86_check_avx256_register (arg))
  		return AVX_U128_DIRTY;
  	    }
  	}
--- 18399,18405 ----
  	    {
  	      rtx arg = XEXP (XEXP (link, 0), 0);
  
! 	      if (ix86_check_avx_upper_register (arg))
  		return AVX_U128_DIRTY;
  	    }
  	}
*************** ix86_avx_u128_mode_needed (rtx_insn *ins
*** 18058,18070 ****
        return AVX_U128_CLEAN;
      }
  
!   /* Require DIRTY mode if a 256bit AVX register is referenced.  Hardware
!      changes state only when a 256bit register is written to, but we need
!      to prevent the compiler from moving optimal insertion point above
!      eventual read from 256bit register.  */
    subrtx_iterator::array_type array;
    FOR_EACH_SUBRTX (iter, array, PATTERN (insn), NONCONST)
!     if (ix86_check_avx256_register (*iter))
        return AVX_U128_DIRTY;
  
    return AVX_U128_ANY;
--- 18407,18419 ----
        return AVX_U128_CLEAN;
      }
  
!   /* Require DIRTY mode if a 256bit or 512bit AVX register is referenced.
!      Hardware changes state only when a 256bit register is written to,
!      but we need to prevent the compiler from moving optimal insertion
!      point above eventual read from 256bit or 512 bit register.  */
    subrtx_iterator::array_type array;
    FOR_EACH_SUBRTX (iter, array, PATTERN (insn), NONCONST)
!     if (ix86_check_avx_upper_register (*iter))
        return AVX_U128_DIRTY;
  
    return AVX_U128_ANY;
*************** ix86_mode_needed (int entity, rtx_insn *
*** 18144,18155 ****
    return 0;
  }
  
! /* Check if a 256bit AVX register is referenced in stores.   */
   
  static void
! ix86_check_avx256_stores (rtx dest, const_rtx, void *data)
   {
!    if (ix86_check_avx256_register (dest))
      {
        bool *used = (bool *) data;
        *used = true;
--- 18493,18504 ----
    return 0;
  }
  
! /* Check if a 256bit or 512bit AVX register is referenced in stores.   */
   
  static void
! ix86_check_avx_upper_stores (rtx dest, const_rtx, void *data)
   {
!    if (ix86_check_avx_upper_register (dest))
      {
        bool *used = (bool *) data;
        *used = true;
*************** ix86_avx_u128_mode_after (int mode, rtx_
*** 18168,18185 ****
      return AVX_U128_CLEAN;
  
    /* We know that state is clean after CALL insn if there are no
!      256bit registers used in the function return register.  */
    if (CALL_P (insn))
      {
!       bool avx_reg256_found = false;
!       note_stores (pat, ix86_check_avx256_stores, &avx_reg256_found);
  
!       return avx_reg256_found ? AVX_U128_DIRTY : AVX_U128_CLEAN;
      }
  
    /* Otherwise, return current mode.  Remember that if insn
!      references AVX 256bit registers, the mode was already changed
!      to DIRTY from MODE_NEEDED.  */
    return mode;
  }
  
--- 18517,18534 ----
      return AVX_U128_CLEAN;
  
    /* We know that state is clean after CALL insn if there are no
!      256bit or 512bit registers used in the function return register. */
    if (CALL_P (insn))
      {
!       bool avx_upper_reg_found = false;
!       note_stores (pat, ix86_check_avx_upper_stores, &avx_upper_reg_found);
  
!       return avx_upper_reg_found ? AVX_U128_DIRTY : AVX_U128_CLEAN;
      }
  
    /* Otherwise, return current mode.  Remember that if insn
!      references AVX 256bit or 512bit registers, the mode was already
!      changed to DIRTY from MODE_NEEDED.  */
    return mode;
  }
  
*************** ix86_avx_u128_mode_entry (void)
*** 18208,18220 ****
    tree arg;
  
    /* Entry mode is set to AVX_U128_DIRTY if there are
!      256bit modes used in function arguments.  */
    for (arg = DECL_ARGUMENTS (current_function_decl); arg;
         arg = TREE_CHAIN (arg))
      {
        rtx incoming = DECL_INCOMING_RTL (arg);
  
!       if (incoming && ix86_check_avx256_register (incoming))
  	return AVX_U128_DIRTY;
      }
  
--- 18557,18569 ----
    tree arg;
  
    /* Entry mode is set to AVX_U128_DIRTY if there are
!      256bit or 512bit modes used in function arguments.  */
    for (arg = DECL_ARGUMENTS (current_function_decl); arg;
         arg = TREE_CHAIN (arg))
      {
        rtx incoming = DECL_INCOMING_RTL (arg);
  
!       if (incoming && ix86_check_avx_upper_register (incoming))
  	return AVX_U128_DIRTY;
      }
  
*************** ix86_avx_u128_mode_exit (void)
*** 18246,18254 ****
  {
    rtx reg = crtl->return_rtx;
  
!   /* Exit mode is set to AVX_U128_DIRTY if there are
!      256bit modes used in the function return register.  */
!   if (reg && ix86_check_avx256_register (reg))
      return AVX_U128_DIRTY;
  
    return AVX_U128_CLEAN;
--- 18595,18603 ----
  {
    rtx reg = crtl->return_rtx;
  
!   /* Exit mode is set to AVX_U128_DIRTY if there are 256bit
!      or 512 bit modes used in the function return register. */
!   if (reg && ix86_check_avx_upper_register (reg))
      return AVX_U128_DIRTY;
  
    return AVX_U128_CLEAN;
*************** ix86_split_idivmod (machine_mode mode, r
*** 19666,19678 ****
  
    if (signed_p)
      {
!       div = gen_rtx_DIV (SImode, operands[2], operands[3]);
!       mod = gen_rtx_MOD (SImode, operands[2], operands[3]);
      }
    else
      {
!       div = gen_rtx_UDIV (SImode, operands[2], operands[3]);
!       mod = gen_rtx_UMOD (SImode, operands[2], operands[3]);
      }
  
    /* Extract remainder from AH.  */
--- 20015,20027 ----
  
    if (signed_p)
      {
!       div = gen_rtx_DIV (mode, operands[2], operands[3]);
!       mod = gen_rtx_MOD (mode, operands[2], operands[3]);
      }
    else
      {
!       div = gen_rtx_UDIV (mode, operands[2], operands[3]);
!       mod = gen_rtx_UMOD (mode, operands[2], operands[3]);
      }
  
    /* Extract remainder from AH.  */
*************** ix86_nopic_noplt_attribute_p (rtx call_o
*** 27405,27416 ****
--- 27754,28165 ----
    return false;
  }
  
+ /* Output indirect branch via a call and return thunk.  CALL_OP is a
+    register which contains the branch target.  XASM is the assembly
+    template for CALL_OP.  Branch is a tail call if SIBCALL_P is true.
+    A normal call is converted to:
+ 
+ 	call __x86_indirect_thunk_reg
+ 
+    and a tail call is converted to:
+ 
+ 	jmp __x86_indirect_thunk_reg
+  */
+ 
+ static void
+ ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p)
+ {
+   char thunk_name_buf[32];
+   char *thunk_name;
+   bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
+   int regno = REGNO (call_op);
+ 
+   if (cfun->machine->indirect_branch_type
+       != indirect_branch_thunk_inline)
+     {
+       if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
+ 	{
+ 	  int i = regno;
+ 	  if (i >= FIRST_REX_INT_REG)
+ 	    i -= (FIRST_REX_INT_REG - LAST_INT_REG - 1);
+ 	  if (need_bnd_p)
+ 	    indirect_thunks_bnd_used |= 1 << i;
+ 	  else
+ 	    indirect_thunks_used |= 1 << i;
+ 	}
+       indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false);
+       thunk_name = thunk_name_buf;
+     }
+   else
+     thunk_name = NULL;
+ 
+   if (sibcall_p)
+     {
+       if (thunk_name != NULL)
+ 	{
+ 	  if (need_bnd_p)
+ 	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	  else
+ 	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	}
+       else
+ 	output_indirect_thunk (need_bnd_p, regno);
+     }
+   else
+     {
+       if (thunk_name != NULL)
+ 	{
+ 	  if (need_bnd_p)
+ 	    fprintf (asm_out_file, "\tbnd call\t%s\n", thunk_name);
+ 	  else
+ 	    fprintf (asm_out_file, "\tcall\t%s\n", thunk_name);
+ 	  return;
+ 	}
+ 
+       char indirectlabel1[32];
+       char indirectlabel2[32];
+ 
+       ASM_GENERATE_INTERNAL_LABEL (indirectlabel1,
+ 				   INDIRECT_LABEL,
+ 				   indirectlabelno++);
+       ASM_GENERATE_INTERNAL_LABEL (indirectlabel2,
+ 				   INDIRECT_LABEL,
+ 				   indirectlabelno++);
+ 
+       /* Jump.  */
+       if (need_bnd_p)
+ 	fputs ("\tbnd jmp\t", asm_out_file);
+       else
+ 	fputs ("\tjmp\t", asm_out_file);
+       assemble_name_raw (asm_out_file, indirectlabel2);
+       fputc ('\n', asm_out_file);
+ 
+       ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
+ 
+       if (thunk_name != NULL)
+ 	{
+ 	  if (need_bnd_p)
+ 	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	  else
+ 	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	}
+       else
+ 	output_indirect_thunk (need_bnd_p, regno);
+ 
+       ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
+ 
+       /* Call.  */
+       if (need_bnd_p)
+ 	fputs ("\tbnd call\t", asm_out_file);
+       else
+ 	fputs ("\tcall\t", asm_out_file);
+       assemble_name_raw (asm_out_file, indirectlabel1);
+       fputc ('\n', asm_out_file);
+     }
+ }
+ 
+ /* Output indirect branch via a call and return thunk.  CALL_OP is
+    the branch target.  XASM is the assembly template for CALL_OP.
+    Branch is a tail call if SIBCALL_P is true.  A normal call is
+    converted to:
+ 
+ 	jmp L2
+    L1:
+ 	push CALL_OP
+ 	jmp __x86_indirect_thunk
+    L2:
+ 	call L1
+ 
+    and a tail call is converted to:
+ 
+ 	push CALL_OP
+ 	jmp __x86_indirect_thunk
+  */
+ 
+ static void
+ ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm,
+ 				      bool sibcall_p)
+ {
+   char thunk_name_buf[32];
+   char *thunk_name;
+   char push_buf[64];
+   bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
+   int regno = -1;
+ 
+   if (cfun->machine->indirect_branch_type
+       != indirect_branch_thunk_inline)
+     {
+       if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
+ 	{
+ 	  if (need_bnd_p)
+ 	    indirect_thunk_bnd_needed = true;
+ 	  else
+ 	    indirect_thunk_needed = true;
+ 	}
+       indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false);
+       thunk_name = thunk_name_buf;
+     }
+   else
+     thunk_name = NULL;
+ 
+   snprintf (push_buf, sizeof (push_buf), "push{%c}\t%s",
+ 	    TARGET_64BIT ? 'q' : 'l', xasm);
+ 
+   if (sibcall_p)
+     {
+       output_asm_insn (push_buf, &call_op);
+       if (thunk_name != NULL)
+ 	{
+ 	  if (need_bnd_p)
+ 	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	  else
+ 	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	}
+       else
+ 	output_indirect_thunk (need_bnd_p, regno);
+     }
+   else
+     {
+       char indirectlabel1[32];
+       char indirectlabel2[32];
+ 
+       ASM_GENERATE_INTERNAL_LABEL (indirectlabel1,
+ 				   INDIRECT_LABEL,
+ 				   indirectlabelno++);
+       ASM_GENERATE_INTERNAL_LABEL (indirectlabel2,
+ 				   INDIRECT_LABEL,
+ 				   indirectlabelno++);
+ 
+       /* Jump.  */
+       if (need_bnd_p)
+ 	fputs ("\tbnd jmp\t", asm_out_file);
+       else
+ 	fputs ("\tjmp\t", asm_out_file);
+       assemble_name_raw (asm_out_file, indirectlabel2);
+       fputc ('\n', asm_out_file);
+ 
+       ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1);
+ 
+       /* An external function may be called via GOT, instead of PLT.  */
+       if (MEM_P (call_op))
+ 	{
+ 	  struct ix86_address parts;
+ 	  rtx addr = XEXP (call_op, 0);
+ 	  if (ix86_decompose_address (addr, &parts)
+ 	      && parts.base == stack_pointer_rtx)
+ 	    {
+ 	      /* Since call will adjust stack by -UNITS_PER_WORD,
+ 		 we must convert "disp(stack, index, scale)" to
+ 		 "disp+UNITS_PER_WORD(stack, index, scale)".  */
+ 	      if (parts.index)
+ 		{
+ 		  addr = gen_rtx_MULT (Pmode, parts.index,
+ 				       GEN_INT (parts.scale));
+ 		  addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx,
+ 				       addr);
+ 		}
+ 	      else
+ 		addr = stack_pointer_rtx;
+ 
+ 	      rtx disp;
+ 	      if (parts.disp != NULL_RTX)
+ 		disp = plus_constant (Pmode, parts.disp,
+ 				      UNITS_PER_WORD);
+ 	      else
+ 		disp = GEN_INT (UNITS_PER_WORD);
+ 
+ 	      addr = gen_rtx_PLUS (Pmode, addr, disp);
+ 	      call_op = gen_rtx_MEM (GET_MODE (call_op), addr);
+ 	    }
+ 	}
+ 
+       output_asm_insn (push_buf, &call_op);
+ 
+       if (thunk_name != NULL)
+ 	{
+ 	  if (need_bnd_p)
+ 	    fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	  else
+ 	    fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	}
+       else
+ 	output_indirect_thunk (need_bnd_p, regno);
+ 
+       ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2);
+ 
+       /* Call.  */
+       if (need_bnd_p)
+ 	fputs ("\tbnd call\t", asm_out_file);
+       else
+ 	fputs ("\tcall\t", asm_out_file);
+       assemble_name_raw (asm_out_file, indirectlabel1);
+       fputc ('\n', asm_out_file);
+     }
+ }
+ 
+ /* Output indirect branch via a call and return thunk.  CALL_OP is
+    the branch target.  XASM is the assembly template for CALL_OP.
+    Branch is a tail call if SIBCALL_P is true.   */
+ 
+ static void
+ ix86_output_indirect_branch (rtx call_op, const char *xasm,
+ 			     bool sibcall_p)
+ {
+   if (REG_P (call_op))
+     ix86_output_indirect_branch_via_reg (call_op, sibcall_p);
+   else
+     ix86_output_indirect_branch_via_push (call_op, xasm, sibcall_p);
+ }
+ 
+ /* Output indirect jump.  CALL_OP is the jump target.  */
+ 
+ const char *
+ ix86_output_indirect_jmp (rtx call_op)
+ {
+   if (cfun->machine->indirect_branch_type != indirect_branch_keep)
+     {
+       /* We can't have red-zone since "call" in the indirect thunk
+          pushes the return address onto stack, destroying red-zone.  */
+       if (ix86_red_zone_size != 0)
+ 	gcc_unreachable ();
+ 
+       ix86_output_indirect_branch (call_op, "%0", true);
+       return "";
+     }
+   else
+     return "%!jmp\t%A0";
+ }
+ 
+ /* Output function return.  CALL_OP is the jump target.  Add a REP
+    prefix to RET if LONG_P is true and function return is kept.  */
+ 
+ const char *
+ ix86_output_function_return (bool long_p)
+ {
+   if (cfun->machine->function_return_type != indirect_branch_keep)
+     {
+       char thunk_name[32];
+       bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
+ 
+       if (cfun->machine->function_return_type
+ 	  != indirect_branch_thunk_inline)
+ 	{
+ 	  bool need_thunk = (cfun->machine->function_return_type
+ 			     == indirect_branch_thunk);
+ 	  indirect_thunk_name (thunk_name, INVALID_REGNUM, need_bnd_p,
+ 			       true);
+ 	  if (need_bnd_p)
+ 	    {
+ 	      indirect_return_bnd_needed |= need_thunk;
+ 	      fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	    }
+ 	  else
+ 	    {
+ 	      indirect_return_needed |= need_thunk;
+ 	      fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	    }
+ 	}
+       else
+ 	output_indirect_thunk (need_bnd_p, INVALID_REGNUM);
+ 
+       return "";
+     }
+ 
+   if (!long_p || ix86_bnd_prefixed_insn_p (current_output_insn))
+     return "%!ret";
+ 
+   return "rep%; ret";
+ }
+ 
+ /* Output indirect function return.  RET_OP is the function return
+    target.  */
+ 
+ const char *
+ ix86_output_indirect_function_return (rtx ret_op)
+ {
+   if (cfun->machine->function_return_type != indirect_branch_keep)
+     {
+       char thunk_name[32];
+       bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn);
+       unsigned int regno = REGNO (ret_op);
+       gcc_assert (regno == CX_REG);
+ 
+       if (cfun->machine->function_return_type
+ 	  != indirect_branch_thunk_inline)
+ 	{
+ 	  bool need_thunk = (cfun->machine->function_return_type
+ 			     == indirect_branch_thunk);
+ 	  indirect_thunk_name (thunk_name, regno, need_bnd_p, true);
+ 	  if (need_bnd_p)
+ 	    {
+ 	      if (need_thunk)
+ 		{
+ 		  indirect_return_via_cx_bnd = true;
+ 		  indirect_thunks_bnd_used |= 1 << CX_REG;
+ 		}
+ 	      fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name);
+ 	    }
+ 	  else
+ 	    {
+ 	      if (need_thunk)
+ 		{
+ 		  indirect_return_via_cx = true;
+ 		  indirect_thunks_used |= 1 << CX_REG;
+ 		}
+ 	      fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ 	    }
+ 	}
+       else
+ 	output_indirect_thunk (need_bnd_p, regno);
+ 
+       return "";
+     }
+   else
+     return "%!jmp\t%A0";
+ }
+ 
+ /* Split simple return with popping POPC bytes from stack to indirect
+    branch with stack adjustment .  */
+ 
+ void
+ ix86_split_simple_return_pop_internal (rtx popc)
+ {
+   struct machine_function *m = cfun->machine;
+   rtx ecx = gen_rtx_REG (SImode, CX_REG);
+   rtx_insn *insn;
+ 
+   /* There is no "pascal" calling convention in any 64bit ABI.  */
+   gcc_assert (!TARGET_64BIT);
+ 
+   insn = emit_insn (gen_pop (ecx));
+   m->fs.cfa_offset -= UNITS_PER_WORD;
+   m->fs.sp_offset -= UNITS_PER_WORD;
+ 
+   rtx x = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD);
+   x = gen_rtx_SET (stack_pointer_rtx, x);
+   add_reg_note (insn, REG_CFA_ADJUST_CFA, x);
+   add_reg_note (insn, REG_CFA_REGISTER, gen_rtx_SET (ecx, pc_rtx));
+   RTX_FRAME_RELATED_P (insn) = 1;
+ 
+   x = gen_rtx_PLUS (Pmode, stack_pointer_rtx, popc);
+   x = gen_rtx_SET (stack_pointer_rtx, x);
+   insn = emit_insn (x);
+   add_reg_note (insn, REG_CFA_ADJUST_CFA, x);
+   RTX_FRAME_RELATED_P (insn) = 1;
+ 
+   /* Now return address is in ECX.  */
+   emit_jump_insn (gen_simple_return_indirect_internal (ecx));
+ }
+ 
  /* Output the assembly for a call instruction.  */
  
  const char *
  ix86_output_call_insn (rtx_insn *insn, rtx call_op)
  {
    bool direct_p = constant_call_address_operand (call_op, VOIDmode);
+   bool output_indirect_p
+     = (!TARGET_SEH
+        && cfun->machine->indirect_branch_type != indirect_branch_keep);
    bool seh_nop_p = false;
    const char *xasm;
  
*************** ix86_output_call_insn (rtx_insn *insn, r
*** 27419,27425 ****
        if (direct_p)
  	{
  	  if (ix86_nopic_noplt_attribute_p (call_op))
! 	    xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
  	  else
  	    xasm = "%!jmp\t%P0";
  	}
--- 28168,28180 ----
        if (direct_p)
  	{
  	  if (ix86_nopic_noplt_attribute_p (call_op))
! 	    {
! 	      direct_p = false;
! 	      if (output_indirect_p)
! 		xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
! 	      else
! 		xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
! 	    }
  	  else
  	    xasm = "%!jmp\t%P0";
  	}
*************** ix86_output_call_insn (rtx_insn *insn, r
*** 27428,27436 ****
        else if (TARGET_SEH)
  	xasm = "%!rex.W jmp\t%A0";
        else
! 	xasm = "%!jmp\t%A0";
  
!       output_asm_insn (xasm, &call_op);
        return "";
      }
  
--- 28183,28199 ----
        else if (TARGET_SEH)
  	xasm = "%!rex.W jmp\t%A0";
        else
! 	{
! 	  if (output_indirect_p)
! 	    xasm = "%0";
! 	  else
! 	    xasm = "%!jmp\t%A0";
! 	}
  
!       if (output_indirect_p && !direct_p)
! 	ix86_output_indirect_branch (call_op, xasm, true);
!       else
! 	output_asm_insn (xasm, &call_op);
        return "";
      }
  
*************** ix86_output_call_insn (rtx_insn *insn, r
*** 27467,27480 ****
    if (direct_p)
      {
        if (ix86_nopic_noplt_attribute_p (call_op))
! 	xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
        else
  	xasm = "%!call\t%P0";
      }
    else
!     xasm = "%!call\t%A0";
  
!   output_asm_insn (xasm, &call_op);
  
    if (seh_nop_p)
      return "nop";
--- 28230,28257 ----
    if (direct_p)
      {
        if (ix86_nopic_noplt_attribute_p (call_op))
! 	{
! 	  direct_p = false;
! 	  if (output_indirect_p)
! 	    xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
! 	  else
! 	    xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}";
! 	}
        else
  	xasm = "%!call\t%P0";
      }
    else
!     {
!       if (output_indirect_p)
! 	xasm = "%0";
!       else
! 	xasm = "%!call\t%A0";
!     }
  
!   if (output_indirect_p && !direct_p)
!     ix86_output_indirect_branch (call_op, xasm, false);
!   else
!     output_asm_insn (xasm, &call_op);
  
    if (seh_nop_p)
      return "nop";
*************** static const struct builtin_description
*** 32732,32737 ****
--- 33509,33515 ----
  {
    { 0, CODE_FOR_nothing, "__builtin_ia32_rdtsc", IX86_BUILTIN_RDTSC, UNKNOWN, (int) UINT64_FTYPE_VOID },
    { 0, CODE_FOR_nothing, "__builtin_ia32_rdtscp", IX86_BUILTIN_RDTSCP, UNKNOWN, (int) UINT64_FTYPE_PUNSIGNED },
+   { 0, CODE_FOR_nothing, "__builtin_ia32_rdpmc", IX86_BUILTIN_RDPMC, UNKNOWN, (int) UINT64_FTYPE_INT },
    { 0, CODE_FOR_pause, "__builtin_ia32_pause", IX86_BUILTIN_PAUSE, UNKNOWN, (int) VOID_FTYPE_VOID },
  
    /* 80387 (for use internally for atomic compound assignment).  */
*************** static const struct builtin_description
*** 33029,33035 ****
  {
    { 0, CODE_FOR_bsr, "__builtin_ia32_bsrsi", IX86_BUILTIN_BSRSI, UNKNOWN, (int) INT_FTYPE_INT },
    { OPTION_MASK_ISA_64BIT, CODE_FOR_bsr_rex64, "__builtin_ia32_bsrdi", IX86_BUILTIN_BSRDI, UNKNOWN, (int) INT64_FTYPE_INT64 },
-   { 0, CODE_FOR_nothing, "__builtin_ia32_rdpmc", IX86_BUILTIN_RDPMC, UNKNOWN, (int) UINT64_FTYPE_INT },
    { 0, CODE_FOR_rotlqi3, "__builtin_ia32_rolqi", IX86_BUILTIN_ROLQI, UNKNOWN, (int) UINT8_FTYPE_UINT8_INT },
    { 0, CODE_FOR_rotlhi3, "__builtin_ia32_rolhi", IX86_BUILTIN_ROLHI, UNKNOWN, (int) UINT16_FTYPE_UINT16_INT },
    { 0, CODE_FOR_rotrqi3, "__builtin_ia32_rorqi", IX86_BUILTIN_RORQI, UNKNOWN, (int) UINT8_FTYPE_UINT8_INT },
--- 33807,33812 ----
*************** sorted_attr_string (tree arglist)
*** 36760,36765 ****
--- 37537,37545 ----
      {
        const char *str = TREE_STRING_POINTER (TREE_VALUE (arg));
        size_t len = strlen (str);
+       /* Skip empty string.  */
+       if (len == 0)
+ 	continue;
        str_len_sum += len + 1;
        if (arg != arglist)
  	argnum++;
*************** sorted_attr_string (tree arglist)
*** 36774,36784 ****
--- 37554,37574 ----
      {
        const char *str = TREE_STRING_POINTER (TREE_VALUE (arg));
        size_t len = strlen (str);
+       /* Skip empty string.  */
+       if (len == 0)
+ 	continue;
        memcpy (attr_str + str_len_sum, str, len);
        attr_str[str_len_sum + len] = TREE_CHAIN (arg) ? ',' : '\0';
        str_len_sum += len + 1;
      }
  
+   /* Strip ',' character at the end.  */
+   if (str_len_sum > 0 && attr_str[str_len_sum - 1] == ',')
+     {
+       attr_str[str_len_sum - 1] = '\0';
+       str_len_sum--;
+     }
+ 
    /* Replace "=,-" with "_".  */
    for (i = 0; i < strlen (attr_str); i++)
      if (attr_str[i] == '=' || attr_str[i]== '-')
*************** fold_builtin_cpu (tree fndecl, tree *arg
*** 37395,37400 ****
--- 38185,38191 ----
      M_INTEL_KNL,
      M_AMD_BTVER1,
      M_AMD_BTVER2,    
+     M_AMDFAM17H,
      M_CPU_SUBTYPE_START,
      M_INTEL_COREI7_NEHALEM,
      M_INTEL_COREI7_WESTMERE,
*************** fold_builtin_cpu (tree fndecl, tree *arg
*** 37449,37454 ****
--- 38240,38246 ----
        {"bdver3", M_AMDFAM15H_BDVER3},
        {"bdver4", M_AMDFAM15H_BDVER4},
        {"btver2", M_AMD_BTVER2},
+       {"amdfam17h", M_AMDFAM17H},
        {"znver1", M_AMDFAM17H_ZNVER1},
      };
  
*************** ix86_handle_struct_attribute (tree *node
*** 44857,44863 ****
  }
  
  static tree
! ix86_handle_fndecl_attribute (tree *node, tree name, tree, int,
  			      bool *no_add_attrs)
  {
    if (TREE_CODE (*node) != FUNCTION_DECL)
--- 45649,45655 ----
  }
  
  static tree
! ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int,
  			      bool *no_add_attrs)
  {
    if (TREE_CODE (*node) != FUNCTION_DECL)
*************** ix86_handle_fndecl_attribute (tree *node
*** 44866,44871 ****
--- 45658,45708 ----
                 name);
        *no_add_attrs = true;
      }
+ 
+   if (is_attribute_p ("indirect_branch", name))
+     {
+       tree cst = TREE_VALUE (args);
+       if (TREE_CODE (cst) != STRING_CST)
+ 	{
+ 	  warning (OPT_Wattributes,
+ 		   "%qE attribute requires a string constant argument",
+ 		   name);
+ 	  *no_add_attrs = true;
+ 	}
+       else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
+ 	       && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
+ 	       && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
+ 	       && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
+ 	{
+ 	  warning (OPT_Wattributes,
+ 		   "argument to %qE attribute is not "
+ 		   "(keep|thunk|thunk-inline|thunk-extern)", name);
+ 	  *no_add_attrs = true;
+ 	}
+     }
+ 
+   if (is_attribute_p ("function_return", name))
+     {
+       tree cst = TREE_VALUE (args);
+       if (TREE_CODE (cst) != STRING_CST)
+ 	{
+ 	  warning (OPT_Wattributes,
+ 		   "%qE attribute requires a string constant argument",
+ 		   name);
+ 	  *no_add_attrs = true;
+ 	}
+       else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
+ 	       && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
+ 	       && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
+ 	       && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
+ 	{
+ 	  warning (OPT_Wattributes,
+ 		   "argument to %qE attribute is not "
+ 		   "(keep|thunk|thunk-inline|thunk-extern)", name);
+ 	  *no_add_attrs = true;
+ 	}
+     }
+ 
    return NULL_TREE;
  }
  
*************** static void
*** 45190,45196 ****
  x86_print_call_or_nop (FILE *file, const char *target)
  {
    if (flag_nop_mcount)
!     fprintf (file, "1:\tnopl 0x00(%%eax,%%eax,1)\n"); /* 5 byte nop.  */
    else
      fprintf (file, "1:\tcall\t%s\n", target);
  }
--- 46027,46034 ----
  x86_print_call_or_nop (FILE *file, const char *target)
  {
    if (flag_nop_mcount)
!     /* 5 byte nop: nopl 0(%[re]ax,%[re]ax,1) */
!     fprintf (file, "1:" ASM_BYTE "0x0f, 0x1f, 0x44, 0x00, 0x00\n");
    else
      fprintf (file, "1:\tcall\t%s\n", target);
  }
*************** ix86_expand_lfloorceil (rtx op0, rtx op1
*** 48600,48607 ****
    emit_move_insn (op0, ireg);
  }
  
! /* Expand rint (IEEE round to nearest) rounding OPERAND1 and storing the
!    result in OPERAND0.  */
  void
  ix86_expand_rint (rtx operand0, rtx operand1)
  {
--- 49438,49444 ----
    emit_move_insn (op0, ireg);
  }
  
! /* Expand rint rounding OPERAND1 and storing the result in OPERAND0.  */
  void
  ix86_expand_rint (rtx operand0, rtx operand1)
  {
*************** ix86_expand_rint (rtx operand0, rtx oper
*** 48609,48619 ****
  	xa = fabs (operand1);
          if (!isless (xa, 2**52))
  	  return operand1;
!         xa = xa + 2**52 - 2**52;
          return copysign (xa, operand1);
     */
    machine_mode mode = GET_MODE (operand0);
!   rtx res, xa, TWO52, mask;
    rtx_code_label *label;
  
    res = gen_reg_rtx (mode);
--- 49446,49462 ----
  	xa = fabs (operand1);
          if (!isless (xa, 2**52))
  	  return operand1;
!         two52 = 2**52;
!         if (flag_rounding_math)
! 	  {
! 	    two52 = copysign (two52, operand1);
! 	    xa = operand1;
! 	  }
!         xa = xa + two52 - two52;
          return copysign (xa, operand1);
     */
    machine_mode mode = GET_MODE (operand0);
!   rtx res, xa, TWO52, two52, mask;
    rtx_code_label *label;
  
    res = gen_reg_rtx (mode);
*************** ix86_expand_rint (rtx operand0, rtx oper
*** 48626,48633 ****
    TWO52 = ix86_gen_TWO52 (mode);
    label = ix86_expand_sse_compare_and_jump (UNLE, TWO52, xa, false);
  
!   xa = expand_simple_binop (mode, PLUS, xa, TWO52, NULL_RTX, 0, OPTAB_DIRECT);
!   xa = expand_simple_binop (mode, MINUS, xa, TWO52, xa, 0, OPTAB_DIRECT);
  
    ix86_sse_copysign_to_positive (res, xa, res, mask);
  
--- 49469,49484 ----
    TWO52 = ix86_gen_TWO52 (mode);
    label = ix86_expand_sse_compare_and_jump (UNLE, TWO52, xa, false);
  
!   two52 = TWO52;
!   if (flag_rounding_math)
!     {
!       two52 = gen_reg_rtx (mode);
!       ix86_sse_copysign_to_positive (two52, TWO52, res, mask);
!       xa = res;
!     }
! 
!   xa = expand_simple_binop (mode, PLUS, xa, two52, NULL_RTX, 0, OPTAB_DIRECT);
!   xa = expand_simple_binop (mode, MINUS, xa, two52, xa, 0, OPTAB_DIRECT);
  
    ix86_sse_copysign_to_positive (res, xa, res, mask);
  
*************** static const struct attribute_spec ix86_
*** 49092,49097 ****
--- 49943,49953 ----
      false },
    { "callee_pop_aggregate_return", 1, 1, false, true, true,
      ix86_handle_callee_pop_aggregate_return, true },
+   { "indirect_branch", 1, 1, true, false, false,
+     ix86_handle_fndecl_attribute, false },
+   { "function_return", 1, 1, true, false, false,
+     ix86_handle_fndecl_attribute, false },
+ 
    /* End element.  */
    { NULL,        0, 0, false, false, false, NULL, false }
  };
diff -Nrcpad gcc-6.4.0/gcc/config/i386/i386.h gcc-6.5.0/gcc/config/i386/i386.h
*** gcc-6.4.0/gcc/config/i386/i386.h	Thu Oct 13 21:15:45 2016
--- gcc-6.5.0/gcc/config/i386/i386.h	Mon Apr 16 19:08:14 2018
*************** extern unsigned char ix86_tune_features[
*** 501,506 ****
--- 501,508 ----
  	ix86_tune_features[X86_TUNE_AVOID_FALSE_DEP_FOR_BMI]
  #define TARGET_ONE_IF_CONV_INSN \
  	ix86_tune_features[X86_TUNE_ONE_IF_CONV_INSN]
+ #define TARGET_EMIT_VZEROUPPER \
+ 	ix86_tune_features[X86_TUNE_EMIT_VZEROUPPER]
  
  /* Feature tests against the various architecture variations.  */
  enum ix86_arch_indices {
*************** extern const char *host_detect_local_cpu
*** 1124,1129 ****
--- 1126,1134 ----
     || (MODE) == V16SImode || (MODE) == V16SFmode || (MODE) == V32HImode \
     || (MODE) == V4TImode)
  
+ #define VALID_AVX512F_REG_OR_XI_MODE(MODE)				\
+   (VALID_AVX512F_REG_MODE (MODE) || (MODE) == XImode)
+ 
  #define VALID_AVX512VL_128_REG_MODE(MODE)				\
    ((MODE) == V2DImode || (MODE) == V2DFmode || (MODE) == V16QImode	\
     || (MODE) == V4SImode || (MODE) == V4SFmode || (MODE) == V8HImode)
*************** enum avx_u128_state
*** 2422,2430 ****
  
  #define FASTCALL_PREFIX '@'
  
  /* Machine specific frame tracking during prologue/epilogue generation.  */
  
- #ifndef USED_FOR_TARGET
  struct GTY(()) machine_frame_state
  {
    /* This pair tracks the currently active CFA as reg+offset.  When reg
--- 2427,2482 ----
  
  #define FASTCALL_PREFIX '@'
  
+ #ifndef USED_FOR_TARGET
+ /* Structure describing stack frame layout.
+    Stack grows downward:
+ 
+    [arguments]
+ 					<- ARG_POINTER
+    saved pc
+ 
+    saved static chain			if ix86_static_chain_on_stack
+ 
+    saved frame pointer			if frame_pointer_needed
+ 					<- HARD_FRAME_POINTER
+    [saved regs]
+ 					<- regs_save_offset
+    [padding0]
+ 
+    [saved SSE regs]
+ 					<- sse_regs_save_offset
+    [padding1]          |
+ 		       |		<- FRAME_POINTER
+    [va_arg registers]  |
+ 		       |
+    [frame]	       |
+ 		       |
+    [padding2]	       | = to_allocate
+ 					<- STACK_POINTER
+   */
+ struct GTY(()) ix86_frame
+ {
+   int nsseregs;
+   int nregs;
+   int va_arg_size;
+   int red_zone_size;
+   int outgoing_arguments_size;
+ 
+   /* The offsets relative to ARG_POINTER.  */
+   HOST_WIDE_INT frame_pointer_offset;
+   HOST_WIDE_INT hard_frame_pointer_offset;
+   HOST_WIDE_INT stack_pointer_offset;
+   HOST_WIDE_INT hfp_save_offset;
+   HOST_WIDE_INT reg_save_offset;
+   HOST_WIDE_INT sse_reg_save_offset;
+ 
+   /* When save_regs_using_mov is set, emit prologue using
+      move instead of push instructions.  */
+   bool save_regs_using_mov;
+ };
+ 
  /* Machine specific frame tracking during prologue/epilogue generation.  */
  
  struct GTY(()) machine_frame_state
  {
    /* This pair tracks the currently active CFA as reg+offset.  When reg
*************** struct GTY(()) machine_function {
*** 2470,2475 ****
--- 2522,2530 ----
    int varargs_fpr_size;
    int optimize_mode_switching[MAX_386_ENTITIES];
  
+   /* Cached initial frame layout for the current function.  */
+   struct ix86_frame frame;
+ 
    /* Number of saved registers USE_FAST_PROLOGUE_EPILOGUE
       has been computed for.  */
    int use_fast_prologue_epilogue_nregs;
*************** struct GTY(()) machine_function {
*** 2517,2522 ****
--- 2572,2587 ----
    /* If true, it is safe to not save/restore DRAP register.  */
    BOOL_BITFIELD no_drap_save_restore : 1;
  
+   /* How to generate indirec branch.  */
+   ENUM_BITFIELD(indirect_branch) indirect_branch_type : 3;
+ 
+   /* If true, the current function has local indirect jumps, like
+      "indirect_jump" or "tablejump".  */
+   BOOL_BITFIELD has_local_indirect_jump : 1;
+ 
+   /* How to generate function return.  */
+   ENUM_BITFIELD(indirect_branch) function_return_type : 3;
+ 
    /* If true, there is register available for argument passing.  This
       is used only in ix86_function_ok_for_sibcall by 32-bit to determine
       if there is scratch register available for indirect sibcall.  In
*************** struct GTY(()) machine_function {
*** 2549,2554 ****
--- 2614,2620 ----
  #define ix86_current_function_calls_tls_descriptor \
    (ix86_tls_descriptor_calls_expanded_in_cfun && df_regs_ever_live_p (SP_REG))
  #define ix86_static_chain_on_stack (cfun->machine->static_chain_on_stack)
+ #define ix86_red_zone_size (cfun->machine->frame.red_zone_size)
  
  /* Control behavior of x86_file_start.  */
  #define X86_FILE_START_VERSION_DIRECTIVE false
*************** extern void debug_dispatch_window (int);
*** 2610,2615 ****
--- 2676,2686 ----
  #define TARGET_RECIP_VEC_DIV	((recip_mask & RECIP_MASK_VEC_DIV) != 0)
  #define TARGET_RECIP_VEC_SQRT	((recip_mask & RECIP_MASK_VEC_SQRT) != 0)
  
+ 
+ #define TARGET_INDIRECT_BRANCH_REGISTER \
+   (ix86_indirect_branch_register \
+    || cfun->machine->indirect_branch_type != indirect_branch_keep)
+ 
  #define IX86_HLE_ACQUIRE (1 << 16)
  #define IX86_HLE_RELEASE (1 << 17)
  
diff -Nrcpad gcc-6.4.0/gcc/config/i386/i386.md gcc-6.5.0/gcc/config/i386/i386.md
*** gcc-6.4.0/gcc/config/i386/i386.md	Fri Mar  3 09:34:14 2017
--- gcc-6.5.0/gcc/config/i386/i386.md	Tue Aug 21 16:38:17 2018
***************
*** 741,747 ****
  	   (if_then_else (match_operand 1 "constant_call_address_operand")
  	     (const_string "none")
  	     (const_string "load"))
! 	 (and (eq_attr "type" "alu1,negnot,ishift1,sselog1,sseshuf1")
  	      (match_operand 1 "memory_operand"))
  	   (const_string "both")
  	 (and (match_operand 0 "memory_operand")
--- 741,747 ----
  	   (if_then_else (match_operand 1 "constant_call_address_operand")
  	     (const_string "none")
  	     (const_string "load"))
! 	 (and (eq_attr "type" "alu1,negnot,ishift1,rotate1,sselog1,sseshuf1")
  	      (match_operand 1 "memory_operand"))
  	   (const_string "both")
  	 (and (match_operand 0 "memory_operand")
***************
*** 752,758 ****
  	 (match_operand 1 "memory_operand")
  	   (const_string "load")
  	 (and (eq_attr "type"
! 		 "!alu1,negnot,ishift1,
  		   imov,imovx,icmp,test,bitmanip,
  		   fmov,fcmp,fsgn,
  		   sse,ssemov,ssecmp,ssecomi,ssecvt,ssecvt1,sseicvt,
--- 752,758 ----
  	 (match_operand 1 "memory_operand")
  	   (const_string "load")
  	 (and (eq_attr "type"
! 		 "!alu1,negnot,ishift1,rotate1,
  		   imov,imovx,icmp,test,bitmanip,
  		   fmov,fcmp,fsgn,
  		   sse,ssemov,ssecmp,ssecomi,ssecvt,ssecvt1,sseicvt,
***************
*** 5393,5399 ****
  (define_expand "floatunsdisf2"
    [(use (match_operand:SF 0 "register_operand"))
     (use (match_operand:DI 1 "nonimmediate_operand"))]
!   "TARGET_64BIT && TARGET_SSE_MATH"
    "x86_emit_floatuns (operands); DONE;")
  
  (define_expand "floatunsdidf2"
--- 5393,5399 ----
  (define_expand "floatunsdisf2"
    [(use (match_operand:SF 0 "register_operand"))
     (use (match_operand:DI 1 "nonimmediate_operand"))]
!   "TARGET_64BIT && TARGET_SSE && TARGET_SSE_MATH"
    "x86_emit_floatuns (operands); DONE;")
  
  (define_expand "floatunsdidf2"
***************
*** 7415,7435 ****
  		(match_operand:XF 2 "register_operand")))]
    "TARGET_80387")
  
! (define_expand "divdf3"
!   [(set (match_operand:DF 0 "register_operand")
!  	(div:DF (match_operand:DF 1 "register_operand")
!  		(match_operand:DF 2 "nonimmediate_operand")))]
!    "(TARGET_80387 && X87_ENABLE_ARITH (DFmode))
!     || (TARGET_SSE2 && TARGET_SSE_MATH)")
! 
! (define_expand "divsf3"
!   [(set (match_operand:SF 0 "register_operand")
! 	(div:SF (match_operand:SF 1 "register_operand")
! 		(match_operand:SF 2 "nonimmediate_operand")))]
!   "(TARGET_80387 && X87_ENABLE_ARITH (SFmode))
!     || TARGET_SSE_MATH"
  {
!   if (TARGET_SSE_MATH
        && TARGET_RECIP_DIV
        && optimize_insn_for_speed_p ()
        && flag_finite_math_only && !flag_trapping_math
--- 7415,7429 ----
  		(match_operand:XF 2 "register_operand")))]
    "TARGET_80387")
  
! (define_expand "div<mode>3"
!   [(set (match_operand:MODEF 0 "register_operand")
! 	(div:MODEF (match_operand:MODEF 1 "register_operand")
! 		   (match_operand:MODEF 2 "nonimmediate_operand")))]
!   "(TARGET_80387 && X87_ENABLE_ARITH (<MODE>mode))
!     || (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)"
  {
!   if (<MODE>mode == SFmode
!       && TARGET_SSE && TARGET_SSE_MATH
        && TARGET_RECIP_DIV
        && optimize_insn_for_speed_p ()
        && flag_finite_math_only && !flag_trapping_math
***************
*** 10863,10872 ****
    split_double_mode (<DWI>mode, &operands[0], 1, &operands[4], &operands[5]);
  })
  
  (define_insn "*bmi2_rorx<mode>3_1"
    [(set (match_operand:SWI48 0 "register_operand" "=r")
! 	(rotatert:SWI48 (match_operand:SWI48 1 "nonimmediate_operand" "rm")
! 			(match_operand:QI 2 "immediate_operand" "<S>")))]
    "TARGET_BMI2"
    "rorx\t{%2, %1, %0|%0, %1, %2}"
    [(set_attr "type" "rotatex")
--- 10857,10871 ----
    split_double_mode (<DWI>mode, &operands[0], 1, &operands[4], &operands[5]);
  })
  
+ (define_mode_attr rorx_immediate_operand
+ 	[(SI "const_0_to_31_operand")
+ 	 (DI "const_0_to_63_operand")])
+ 
  (define_insn "*bmi2_rorx<mode>3_1"
    [(set (match_operand:SWI48 0 "register_operand" "=r")
! 	(rotatert:SWI48
! 	  (match_operand:SWI48 1 "nonimmediate_operand" "rm")
! 	  (match_operand:QI 2 "<rorx_immediate_operand>" "<S>")))]
    "TARGET_BMI2"
    "rorx\t{%2, %1, %0|%0, %1, %2}"
    [(set_attr "type" "rotatex")
***************
*** 10909,10915 ****
  (define_split
    [(set (match_operand:SWI48 0 "register_operand")
  	(rotate:SWI48 (match_operand:SWI48 1 "nonimmediate_operand")
! 		      (match_operand:QI 2 "immediate_operand")))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
--- 10908,10914 ----
  (define_split
    [(set (match_operand:SWI48 0 "register_operand")
  	(rotate:SWI48 (match_operand:SWI48 1 "nonimmediate_operand")
! 		      (match_operand:QI 2 "const_int_operand")))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
***************
*** 10923,10929 ****
  (define_split
    [(set (match_operand:SWI48 0 "register_operand")
  	(rotatert:SWI48 (match_operand:SWI48 1 "nonimmediate_operand")
! 			(match_operand:QI 2 "immediate_operand")))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
--- 10922,10928 ----
  (define_split
    [(set (match_operand:SWI48 0 "register_operand")
  	(rotatert:SWI48 (match_operand:SWI48 1 "nonimmediate_operand")
! 			(match_operand:QI 2 "const_int_operand")))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
***************
*** 10933,10939 ****
    [(set (match_operand:DI 0 "register_operand" "=r")
  	(zero_extend:DI
  	  (rotatert:SI (match_operand:SI 1 "nonimmediate_operand" "rm")
! 		       (match_operand:QI 2 "immediate_operand" "I"))))]
    "TARGET_64BIT && TARGET_BMI2"
    "rorx\t{%2, %1, %k0|%k0, %1, %2}"
    [(set_attr "type" "rotatex")
--- 10932,10938 ----
    [(set (match_operand:DI 0 "register_operand" "=r")
  	(zero_extend:DI
  	  (rotatert:SI (match_operand:SI 1 "nonimmediate_operand" "rm")
! 		       (match_operand:QI 2 "const_0_to_31_operand" "I"))))]
    "TARGET_64BIT && TARGET_BMI2"
    "rorx\t{%2, %1, %k0|%k0, %1, %2}"
    [(set_attr "type" "rotatex")
***************
*** 10977,10983 ****
    [(set (match_operand:DI 0 "register_operand")
  	(zero_extend:DI
  	  (rotate:SI (match_operand:SI 1 "nonimmediate_operand")
! 		     (match_operand:QI 2 "immediate_operand"))))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_64BIT && TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
--- 10976,10982 ----
    [(set (match_operand:DI 0 "register_operand")
  	(zero_extend:DI
  	  (rotate:SI (match_operand:SI 1 "nonimmediate_operand")
! 		     (match_operand:QI 2 "const_int_operand"))))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_64BIT && TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
***************
*** 10992,10998 ****
    [(set (match_operand:DI 0 "register_operand")
  	(zero_extend:DI
  	  (rotatert:SI (match_operand:SI 1 "nonimmediate_operand")
! 		       (match_operand:QI 2 "immediate_operand"))))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_64BIT && TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
--- 10991,10997 ----
    [(set (match_operand:DI 0 "register_operand")
  	(zero_extend:DI
  	  (rotatert:SI (match_operand:SI 1 "nonimmediate_operand")
! 		       (match_operand:QI 2 "const_int_operand"))))
     (clobber (reg:CC FLAGS_REG))]
    "TARGET_64BIT && TARGET_BMI2 && reload_completed"
    [(set (match_dup 0)
***************
*** 11806,11820 ****
    [(set (pc) (match_operand 0 "indirect_branch_operand"))]
    ""
  {
!   if (TARGET_X32)
      operands[0] = convert_memory_address (word_mode, operands[0]);
  })
  
  (define_insn "*indirect_jump"
    [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))]
    ""
!   "%!jmp\t%A0"
!   [(set_attr "type" "ibr")
     (set_attr "length_immediate" "0")
     (set_attr "maybe_prefix_bnd" "1")])
  
--- 11805,11824 ----
    [(set (pc) (match_operand 0 "indirect_branch_operand"))]
    ""
  {
!   if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER)
      operands[0] = convert_memory_address (word_mode, operands[0]);
+   cfun->machine->has_local_indirect_jump = true;
  })
  
  (define_insn "*indirect_jump"
    [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))]
    ""
!   "* return ix86_output_indirect_jmp (operands[0]);"
!   [(set (attr "type")
!      (if_then_else (match_test "(cfun->machine->indirect_branch_type
! 				 != indirect_branch_keep)")
! 	(const_string "multi")
! 	(const_string "ibr")))
     (set_attr "length_immediate" "0")
     (set_attr "maybe_prefix_bnd" "1")])
  
***************
*** 11855,11870 ****
  					 OPTAB_DIRECT);
      }
  
!   if (TARGET_X32)
      operands[0] = convert_memory_address (word_mode, operands[0]);
  })
  
  (define_insn "*tablejump_1"
    [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))
     (use (label_ref (match_operand 1)))]
    ""
!   "%!jmp\t%A0"
!   [(set_attr "type" "ibr")
     (set_attr "length_immediate" "0")
     (set_attr "maybe_prefix_bnd" "1")])
  
--- 11859,11879 ----
  					 OPTAB_DIRECT);
      }
  
!   if (TARGET_X32 || TARGET_INDIRECT_BRANCH_REGISTER)
      operands[0] = convert_memory_address (word_mode, operands[0]);
+   cfun->machine->has_local_indirect_jump = true;
  })
  
  (define_insn "*tablejump_1"
    [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))
     (use (label_ref (match_operand 1)))]
    ""
!   "* return ix86_output_indirect_jmp (operands[0]);"
!   [(set (attr "type")
!      (if_then_else (match_test "(cfun->machine->indirect_branch_type
! 				 != indirect_branch_keep)")
! 	(const_string "multi")
! 	(const_string "ibr")))
     (set_attr "length_immediate" "0")
     (set_attr "maybe_prefix_bnd" "1")])
  
***************
*** 11879,11885 ****
  	(zero_extend (match_dup 1)))]
    "(peep2_reg_dead_p (3, operands[1])
      || operands_match_p (operands[1], operands[3]))
!    && ! reg_overlap_mentioned_p (operands[3], operands[0])"
    [(set (match_dup 4) (match_dup 0))
     (set (strict_low_part (match_dup 5))
  	(match_dup 2))]
--- 11888,11895 ----
  	(zero_extend (match_dup 1)))]
    "(peep2_reg_dead_p (3, operands[1])
      || operands_match_p (operands[1], operands[3]))
!    && ! reg_overlap_mentioned_p (operands[3], operands[0])
!    && peep2_regno_dead_p (0, FLAGS_REG)"
    [(set (match_dup 4) (match_dup 0))
     (set (strict_low_part (match_dup 5))
  	(match_dup 2))]
***************
*** 11900,11906 ****
    "(peep2_reg_dead_p (3, operands[1])
      || operands_match_p (operands[1], operands[3]))
     && ! reg_overlap_mentioned_p (operands[3], operands[0])
!    && ! reg_set_p (operands[3], operands[4])"
    [(parallel [(set (match_dup 5) (match_dup 0))
  	      (match_dup 4)])
     (set (strict_low_part (match_dup 6))
--- 11910,11917 ----
    "(peep2_reg_dead_p (3, operands[1])
      || operands_match_p (operands[1], operands[3]))
     && ! reg_overlap_mentioned_p (operands[3], operands[0])
!    && ! reg_set_p (operands[3], operands[4])
!    && peep2_regno_dead_p (0, FLAGS_REG)"
    [(parallel [(set (match_dup 5) (match_dup 0))
  	      (match_dup 4)])
     (set (strict_low_part (match_dup 6))
***************
*** 11922,11928 ****
  		   (and:SI (match_dup 3) (const_int 255)))
  	      (clobber (reg:CC FLAGS_REG))])]
    "REGNO (operands[1]) == REGNO (operands[3])
!    && ! reg_overlap_mentioned_p (operands[3], operands[0])"
    [(set (match_dup 4) (match_dup 0))
     (set (strict_low_part (match_dup 5))
  	(match_dup 2))]
--- 11933,11940 ----
  		   (and:SI (match_dup 3) (const_int 255)))
  	      (clobber (reg:CC FLAGS_REG))])]
    "REGNO (operands[1]) == REGNO (operands[3])
!    && ! reg_overlap_mentioned_p (operands[3], operands[0])
!    && peep2_regno_dead_p (0, FLAGS_REG)"
    [(set (match_dup 4) (match_dup 0))
     (set (strict_low_part (match_dup 5))
  	(match_dup 2))]
***************
*** 11944,11950 ****
    "(peep2_reg_dead_p (3, operands[1])
      || operands_match_p (operands[1], operands[3]))
     && ! reg_overlap_mentioned_p (operands[3], operands[0])
!    && ! reg_set_p (operands[3], operands[4])"
    [(parallel [(set (match_dup 5) (match_dup 0))
  	      (match_dup 4)])
     (set (strict_low_part (match_dup 6))
--- 11956,11963 ----
    "(peep2_reg_dead_p (3, operands[1])
      || operands_match_p (operands[1], operands[3]))
     && ! reg_overlap_mentioned_p (operands[3], operands[0])
!    && ! reg_set_p (operands[3], operands[4])
!    && peep2_regno_dead_p (0, FLAGS_REG)"
    [(parallel [(set (match_dup 5) (match_dup 0))
  	      (match_dup 4)])
     (set (strict_low_part (match_dup 6))
***************
*** 12016,12022 ****
  		     (match_operand:SI 0 "register_no_elim_operand" "U")
  		     (match_operand:SI 1 "GOT32_symbol_operand"))))
  	 (match_operand 2))]
!   "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)"
  {
    rtx fnaddr = gen_rtx_PLUS (Pmode, operands[0], operands[1]);
    fnaddr = gen_const_mem (Pmode, fnaddr);
--- 12029,12038 ----
  		     (match_operand:SI 0 "register_no_elim_operand" "U")
  		     (match_operand:SI 1 "GOT32_symbol_operand"))))
  	 (match_operand 2))]
!   "!TARGET_MACHO
!   && !TARGET_64BIT
!   && !TARGET_INDIRECT_BRANCH_REGISTER
!   && SIBLING_CALL_P (insn)"
  {
    rtx fnaddr = gen_rtx_PLUS (Pmode, operands[0], operands[1]);
    fnaddr = gen_const_mem (Pmode, fnaddr);
***************
*** 12035,12041 ****
    [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
  	 (match_operand 1))
     (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
!   "!TARGET_X32"
    "* return ix86_output_call_insn (insn, operands[0]);"
    [(set_attr "type" "call")])
  
--- 12051,12057 ----
    [(call (mem:QI (match_operand:W 0 "memory_operand" "m"))
  	 (match_operand 1))
     (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
!   "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER"
    "* return ix86_output_call_insn (insn, operands[0]);"
    [(set_attr "type" "call")])
  
***************
*** 12044,12050 ****
  	(match_operand:W 1 "memory_operand"))
     (call (mem:QI (match_dup 0))
  	 (match_operand 3))]
!   "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
    [(parallel [(call (mem:QI (match_dup 1))
--- 12060,12068 ----
  	(match_operand:W 1 "memory_operand"))
     (call (mem:QI (match_dup 0))
  	 (match_operand 3))]
!   "!TARGET_X32
!    && !TARGET_INDIRECT_BRANCH_REGISTER
!    && SIBLING_CALL_P (peep2_next_insn (1))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
    [(parallel [(call (mem:QI (match_dup 1))
***************
*** 12057,12063 ****
     (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
     (call (mem:QI (match_dup 0))
  	 (match_operand 3))]
!   "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
    [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
--- 12075,12083 ----
     (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
     (call (mem:QI (match_dup 0))
  	 (match_operand 3))]
!   "!TARGET_X32
!    && !TARGET_INDIRECT_BRANCH_REGISTER
!    && SIBLING_CALL_P (peep2_next_insn (2))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
    [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
***************
*** 12079,12085 ****
  })
  
  (define_insn "*call_pop"
!   [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lmBz"))
  	 (match_operand 1))
     (set (reg:SI SP_REG)
  	(plus:SI (reg:SI SP_REG)
--- 12099,12105 ----
  })
  
  (define_insn "*call_pop"
!   [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lBwBz"))
  	 (match_operand 1))
     (set (reg:SI SP_REG)
  	(plus:SI (reg:SI SP_REG)
***************
*** 12099,12105 ****
    [(set_attr "type" "call")])
  
  (define_insn "*sibcall_pop_memory"
!   [(call (mem:QI (match_operand:SI 0 "memory_operand" "m"))
  	 (match_operand 1))
     (set (reg:SI SP_REG)
  	(plus:SI (reg:SI SP_REG)
--- 12119,12125 ----
    [(set_attr "type" "call")])
  
  (define_insn "*sibcall_pop_memory"
!   [(call (mem:QI (match_operand:SI 0 "memory_operand" "Bs"))
  	 (match_operand 1))
     (set (reg:SI SP_REG)
  	(plus:SI (reg:SI SP_REG)
***************
*** 12153,12159 ****
    [(set (match_operand:W 0 "register_operand")
          (match_operand:W 1 "memory_operand"))
     (set (pc) (match_dup 0))]
!   "!TARGET_X32 && peep2_reg_dead_p (2, operands[0])"
    [(set (pc) (match_dup 1))])
  
  ;; Call subroutine, returning value in operand 0
--- 12173,12181 ----
    [(set (match_operand:W 0 "register_operand")
          (match_operand:W 1 "memory_operand"))
     (set (pc) (match_dup 0))]
!   "!TARGET_X32
!    && !TARGET_INDIRECT_BRANCH_REGISTER
!    && peep2_reg_dead_p (2, operands[0])"
    [(set (pc) (match_dup 1))])
  
  ;; Call subroutine, returning value in operand 0
***************
*** 12210,12216 ****
  			  (match_operand:SI 1 "register_no_elim_operand" "U")
  			  (match_operand:SI 2 "GOT32_symbol_operand"))))
  	 (match_operand 3)))]
!   "!TARGET_MACHO && !TARGET_64BIT && SIBLING_CALL_P (insn)"
  {
    rtx fnaddr = gen_rtx_PLUS (Pmode, operands[1], operands[2]);
    fnaddr = gen_const_mem (Pmode, fnaddr);
--- 12232,12241 ----
  			  (match_operand:SI 1 "register_no_elim_operand" "U")
  			  (match_operand:SI 2 "GOT32_symbol_operand"))))
  	 (match_operand 3)))]
!   "!TARGET_MACHO
!    && !TARGET_64BIT
!    && !TARGET_INDIRECT_BRANCH_REGISTER
!    && SIBLING_CALL_P (insn)"
  {
    rtx fnaddr = gen_rtx_PLUS (Pmode, operands[1], operands[2]);
    fnaddr = gen_const_mem (Pmode, fnaddr);
***************
*** 12231,12237 ****
   	(call (mem:QI (match_operand:W 1 "memory_operand" "m"))
  	      (match_operand 2)))
     (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
!   "!TARGET_X32"
    "* return ix86_output_call_insn (insn, operands[1]);"
    [(set_attr "type" "callv")])
  
--- 12256,12262 ----
   	(call (mem:QI (match_operand:W 1 "memory_operand" "m"))
  	      (match_operand 2)))
     (unspec [(const_int 0)] UNSPEC_PEEPSIB)]
!   "!TARGET_X32 && !TARGET_INDIRECT_BRANCH_REGISTER"
    "* return ix86_output_call_insn (insn, operands[1]);"
    [(set_attr "type" "callv")])
  
***************
*** 12241,12247 ****
     (set (match_operand 2)
     (call (mem:QI (match_dup 0))
  		 (match_operand 3)))]
!   "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
    [(parallel [(set (match_dup 2)
--- 12266,12274 ----
     (set (match_operand 2)
     (call (mem:QI (match_dup 0))
  		 (match_operand 3)))]
!   "!TARGET_X32
!    && !TARGET_INDIRECT_BRANCH_REGISTER
!    && SIBLING_CALL_P (peep2_next_insn (1))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))"
    [(parallel [(set (match_dup 2)
***************
*** 12256,12262 ****
     (set (match_operand 2)
  	(call (mem:QI (match_dup 0))
  	      (match_operand 3)))]
!   "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
    [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
--- 12283,12291 ----
     (set (match_operand 2)
  	(call (mem:QI (match_dup 0))
  	      (match_operand 3)))]
!   "!TARGET_X32
!    && !TARGET_INDIRECT_BRANCH_REGISTER
!    && SIBLING_CALL_P (peep2_next_insn (2))
     && !reg_mentioned_p (operands[0],
  			CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))"
    [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE)
***************
*** 12281,12287 ****
  
  (define_insn "*call_value_pop"
    [(set (match_operand 0)
! 	(call (mem:QI (match_operand:SI 1 "call_insn_operand" "lmBz"))
  	      (match_operand 2)))
     (set (reg:SI SP_REG)
  	(plus:SI (reg:SI SP_REG)
--- 12310,12316 ----
  
  (define_insn "*call_value_pop"
    [(set (match_operand 0)
! 	(call (mem:QI (match_operand:SI 1 "call_insn_operand" "lBwBz"))
  	      (match_operand 2)))
     (set (reg:SI SP_REG)
  	(plus:SI (reg:SI SP_REG)
***************
*** 12476,12482 ****
  (define_insn "simple_return_internal"
    [(simple_return)]
    "reload_completed"
!   "%!ret"
    [(set_attr "length" "1")
     (set_attr "atom_unit" "jeu")
     (set_attr "length_immediate" "0")
--- 12505,12511 ----
  (define_insn "simple_return_internal"
    [(simple_return)]
    "reload_completed"
!   "* return ix86_output_function_return (false);"
    [(set_attr "length" "1")
     (set_attr "atom_unit" "jeu")
     (set_attr "length_immediate" "0")
***************
*** 12490,12512 ****
    [(simple_return)
     (unspec [(const_int 0)] UNSPEC_REP)]
    "reload_completed"
! {
!   if (ix86_bnd_prefixed_insn_p (insn))
!     return "%!ret";
! 
!   return "rep%; ret";
! }
    [(set_attr "length" "2")
     (set_attr "atom_unit" "jeu")
     (set_attr "length_immediate" "0")
     (set_attr "prefix_rep" "1")
     (set_attr "modrm" "0")])
  
! (define_insn "simple_return_pop_internal"
    [(simple_return)
     (use (match_operand:SI 0 "const_int_operand"))]
    "reload_completed"
    "%!ret\t%0"
    [(set_attr "length" "3")
     (set_attr "atom_unit" "jeu")
     (set_attr "length_immediate" "2")
--- 12519,12539 ----
    [(simple_return)
     (unspec [(const_int 0)] UNSPEC_REP)]
    "reload_completed"
!   "* return ix86_output_function_return (true);"
    [(set_attr "length" "2")
     (set_attr "atom_unit" "jeu")
     (set_attr "length_immediate" "0")
     (set_attr "prefix_rep" "1")
     (set_attr "modrm" "0")])
  
! (define_insn_and_split "simple_return_pop_internal"
    [(simple_return)
     (use (match_operand:SI 0 "const_int_operand"))]
    "reload_completed"
    "%!ret\t%0"
+   "&& cfun->machine->function_return_type != indirect_branch_keep"
+   [(const_int 0)]
+   "ix86_split_simple_return_pop_internal (operands[0]); DONE;"
    [(set_attr "length" "3")
     (set_attr "atom_unit" "jeu")
     (set_attr "length_immediate" "2")
***************
*** 12517,12524 ****
    [(simple_return)
     (use (match_operand:SI 0 "register_operand" "r"))]
    "reload_completed"
!   "%!jmp\t%A0"
!   [(set_attr "type" "ibr")
     (set_attr "length_immediate" "0")
     (set_attr "maybe_prefix_bnd" "1")])
  
--- 12544,12555 ----
    [(simple_return)
     (use (match_operand:SI 0 "register_operand" "r"))]
    "reload_completed"
!   "* return ix86_output_indirect_function_return (operands[0]);"
!   [(set (attr "type")
!      (if_then_else (match_test "(cfun->machine->indirect_branch_type
! 				 != indirect_branch_keep)")
! 	(const_string "multi")
! 	(const_string "ibr")))
     (set_attr "length_immediate" "0")
     (set_attr "maybe_prefix_bnd" "1")])
  
***************
*** 12668,12674 ****
       stack address we wish to restore.  */
    tmp = gen_rtx_PLUS (Pmode, arg_pointer_rtx, sa);
    tmp = plus_constant (Pmode, tmp, -UNITS_PER_WORD);
!   tmp = gen_rtx_MEM (Pmode, tmp);
    emit_move_insn (tmp, ra);
  
    emit_jump_insn (gen_eh_return_internal ());
--- 12699,12708 ----
       stack address we wish to restore.  */
    tmp = gen_rtx_PLUS (Pmode, arg_pointer_rtx, sa);
    tmp = plus_constant (Pmode, tmp, -UNITS_PER_WORD);
!   /* Return address is always in word_mode.  */
!   tmp = gen_rtx_MEM (word_mode, tmp);
!   if (GET_MODE (ra) != word_mode)
!     ra = convert_to_mode (word_mode, ra, 1);
    emit_move_insn (tmp, ra);
  
    emit_jump_insn (gen_eh_return_internal ());
***************
*** 14223,14229 ****
    [(set (match_operand:SF 0 "register_operand" "=x")
  	(unspec:SF [(match_operand:SF 1 "nonimmediate_operand" "xm")]
  		   UNSPEC_RCP))]
!   "TARGET_SSE_MATH"
    "%vrcpss\t{%1, %d0|%d0, %1}"
    [(set_attr "type" "sse")
     (set_attr "atom_sse_attr" "rcp")
--- 14257,14263 ----
    [(set (match_operand:SF 0 "register_operand" "=x")
  	(unspec:SF [(match_operand:SF 1 "nonimmediate_operand" "xm")]
  		   UNSPEC_RCP))]
!   "TARGET_SSE && TARGET_SSE_MATH"
    "%vrcpss\t{%1, %d0|%d0, %1}"
    [(set_attr "type" "sse")
     (set_attr "atom_sse_attr" "rcp")
***************
*** 14548,14554 ****
    [(set (match_operand:SF 0 "register_operand" "=x")
  	(unspec:SF [(match_operand:SF 1 "nonimmediate_operand" "xm")]
  		   UNSPEC_RSQRT))]
!   "TARGET_SSE_MATH"
    "%vrsqrtss\t{%1, %d0|%d0, %1}"
    [(set_attr "type" "sse")
     (set_attr "atom_sse_attr" "rcp")
--- 14582,14588 ----
    [(set (match_operand:SF 0 "register_operand" "=x")
  	(unspec:SF [(match_operand:SF 1 "nonimmediate_operand" "xm")]
  		   UNSPEC_RSQRT))]
!   "TARGET_SSE && TARGET_SSE_MATH"
    "%vrsqrtss\t{%1, %d0|%d0, %1}"
    [(set_attr "type" "sse")
     (set_attr "atom_sse_attr" "rcp")
***************
*** 14560,14566 ****
    [(set (match_operand:SF 0 "register_operand")
  	(unspec:SF [(match_operand:SF 1 "nonimmediate_operand")]
  		   UNSPEC_RSQRT))]
!   "TARGET_SSE_MATH"
  {
    ix86_emit_swsqrtsf (operands[0], operands[1], SFmode, 1);
    DONE;
--- 14594,14600 ----
    [(set (match_operand:SF 0 "register_operand")
  	(unspec:SF [(match_operand:SF 1 "nonimmediate_operand")]
  		   UNSPEC_RSQRT))]
!   "TARGET_SSE && TARGET_SSE_MATH"
  {
    ix86_emit_swsqrtsf (operands[0], operands[1], SFmode, 1);
    DONE;
***************
*** 14589,14595 ****
     || (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)"
  {
    if (<MODE>mode == SFmode
!       && TARGET_SSE_MATH
        && TARGET_RECIP_SQRT
        && !optimize_function_for_size_p (cfun)
        && flag_finite_math_only && !flag_trapping_math
--- 14623,14629 ----
     || (SSE_FLOAT_MODE_P (<MODE>mode) && TARGET_SSE_MATH)"
  {
    if (<MODE>mode == SFmode
!       && TARGET_SSE && TARGET_SSE_MATH
        && TARGET_RECIP_SQRT
        && !optimize_function_for_size_p (cfun)
        && flag_finite_math_only && !flag_trapping_math
diff -Nrcpad gcc-6.4.0/gcc/config/i386/i386.opt gcc-6.5.0/gcc/config/i386/i386.opt
*** gcc-6.4.0/gcc/config/i386/i386.opt	Thu Oct 13 21:15:45 2016
--- gcc-6.5.0/gcc/config/i386/i386.opt	Mon Apr 16 18:59:22 2018
*************** Enum(stack_protector_guard) String(globa
*** 897,899 ****
--- 897,927 ----
  mmitigate-rop
  Target Var(flag_mitigate_rop) Init(0)
  Attempt to avoid generating instruction sequences containing ret bytes.
+ 
+ mindirect-branch=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep)
+ Convert indirect call and jump to call and return thunks.
+ 
+ mfunction-return=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep)
+ Convert function return to call and return thunk.
+ 
+ Enum
+ Name(indirect_branch) Type(enum indirect_branch)
+ Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options):
+ 
+ EnumValue
+ Enum(indirect_branch) String(keep) Value(indirect_branch_keep)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
+ 
+ mindirect-branch-register
+ Target Report Var(ix86_indirect_branch_register) Init(0)
+ Force indirect call and jump via register.
diff -Nrcpad gcc-6.4.0/gcc/config/i386/predicates.md gcc-6.5.0/gcc/config/i386/predicates.md
*** gcc-6.4.0/gcc/config/i386/predicates.md	Wed Apr 27 13:35:03 2016
--- gcc-6.5.0/gcc/config/i386/predicates.md	Mon Apr 16 19:08:14 2018
***************
*** 593,599 ****
  ;; Test for a valid operand for indirect branch.
  (define_predicate "indirect_branch_operand"
    (ior (match_operand 0 "register_operand")
!        (and (not (match_test "TARGET_X32"))
  	    (match_operand 0 "memory_operand"))))
  
  ;; Return true if OP is a memory operands that can be used in sibcalls.
--- 593,600 ----
  ;; Test for a valid operand for indirect branch.
  (define_predicate "indirect_branch_operand"
    (ior (match_operand 0 "register_operand")
!        (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
! 	    (not (match_test "TARGET_X32"))
  	    (match_operand 0 "memory_operand"))))
  
  ;; Return true if OP is a memory operands that can be used in sibcalls.
***************
*** 636,655 ****
    (ior (match_test "constant_call_address_operand
  		     (op, mode == VOIDmode ? mode : Pmode)")
         (match_operand 0 "call_register_no_elim_operand")
!        (ior (and (not (match_test "TARGET_X32"))
! 		 (match_operand 0 "memory_operand"))
! 	    (and (match_test "TARGET_X32 && Pmode == DImode")
! 		 (match_operand 0 "GOT_memory_operand")))))
  
  ;; Similarly, but for tail calls, in which we cannot allow memory references.
  (define_special_predicate "sibcall_insn_operand"
    (ior (match_test "constant_call_address_operand
  		     (op, mode == VOIDmode ? mode : Pmode)")
         (match_operand 0 "register_no_elim_operand")
!        (ior (and (not (match_test "TARGET_X32"))
! 		 (match_operand 0 "sibcall_memory_operand"))
! 	    (and (match_test "TARGET_X32 && Pmode == DImode")
! 		 (match_operand 0 "GOT_memory_operand")))))
  
  ;; Return true if OP is a 32-bit GOT symbol operand.
  (define_predicate "GOT32_symbol_operand"
--- 637,658 ----
    (ior (match_test "constant_call_address_operand
  		     (op, mode == VOIDmode ? mode : Pmode)")
         (match_operand 0 "call_register_no_elim_operand")
!        (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
! 	    (ior (and (not (match_test "TARGET_X32"))
! 		      (match_operand 0 "memory_operand"))
! 		 (and (match_test "TARGET_X32 && Pmode == DImode")
! 		      (match_operand 0 "GOT_memory_operand"))))))
  
  ;; Similarly, but for tail calls, in which we cannot allow memory references.
  (define_special_predicate "sibcall_insn_operand"
    (ior (match_test "constant_call_address_operand
  		     (op, mode == VOIDmode ? mode : Pmode)")
         (match_operand 0 "register_no_elim_operand")
!        (and (not (match_test "TARGET_INDIRECT_BRANCH_REGISTER"))
! 	    (ior (and (not (match_test "TARGET_X32"))
! 		      (match_operand 0 "sibcall_memory_operand"))
! 		 (and (match_test "TARGET_X32 && Pmode == DImode")
! 		      (match_operand 0 "GOT_memory_operand"))))))
  
  ;; Return true if OP is a 32-bit GOT symbol operand.
  (define_predicate "GOT32_symbol_operand"
diff -Nrcpad gcc-6.4.0/gcc/config/i386/sol2.h gcc-6.5.0/gcc/config/i386/sol2.h
*** gcc-6.4.0/gcc/config/i386/sol2.h	Wed Mar 23 10:55:37 2016
--- gcc-6.5.0/gcc/config/i386/sol2.h	Mon Nov 13 12:54:00 2017
*************** along with GCC; see the file COPYING3.
*** 65,72 ****
  #define ASM_CPU64_DEFAULT_SPEC "-xarch=generic64"
  #endif
  
  #undef ASM_CPU_SPEC
! #define ASM_CPU_SPEC "%(asm_cpu_default)"
  
  /* Don't include ASM_PIC_SPEC.  While the Solaris 10+ assembler accepts -K PIC,
     it gives many warnings: 
--- 65,80 ----
  #define ASM_CPU64_DEFAULT_SPEC "-xarch=generic64"
  #endif
  
+ /* Since Studio 12.6, as needs -xbrace_comment=no so its AVX512 syntax is
+    fully compatible with gas.  */
+ #ifdef HAVE_AS_XBRACE_COMMENT_OPTION
+ #define ASM_XBRACE_COMMENT_SPEC "-xbrace_comment=no"
+ #else
+ #define ASM_XBRACE_COMMENT_SPEC ""
+ #endif
+ 
  #undef ASM_CPU_SPEC
! #define ASM_CPU_SPEC "%(asm_cpu_default) " ASM_XBRACE_COMMENT_SPEC
  
  /* Don't include ASM_PIC_SPEC.  While the Solaris 10+ assembler accepts -K PIC,
     it gives many warnings: 
diff -Nrcpad gcc-6.4.0/gcc/config/i386/sse.md gcc-6.5.0/gcc/config/i386/sse.md
*** gcc-6.4.0/gcc/config/i386/sse.md	Fri May 19 15:51:10 2017
--- gcc-6.5.0/gcc/config/i386/sse.md	Mon Jun 25 17:55:15 2018
***************
*** 1112,1122 ****
  					     operands[2]));
     }
   else if (memory_operand (operands[1], DImode))
!    {
!      rtx tmp = gen_reg_rtx (V2DImode);
!      emit_insn (gen_vec_concatv2di (tmp, operands[1], const0_rtx));
!      emit_move_insn (operands[0], gen_lowpart (V4SImode, tmp));
!    }
   else
     gcc_unreachable ();
  })
--- 1112,1119 ----
  					     operands[2]));
     }
   else if (memory_operand (operands[1], DImode))
!    emit_insn (gen_vec_concatv2di (gen_lowpart (V2DImode, operands[0]),
! 				  operands[1], const0_rtx));
   else
     gcc_unreachable ();
  })
***************
*** 4397,4403 ****
  	  (match_operand:VF_128 1 "register_operand" "v")
  	  (const_int 1)))]
    "TARGET_AVX512F && TARGET_64BIT"
!   "vcvtusi2<ssescalarmodesuffix>\t{%2, <round_op3>%1, %0|%0, %1<round_op3>, %2}"
    [(set_attr "type" "sseicvt")
     (set_attr "prefix" "evex")
     (set_attr "mode" "<ssescalarmode>")])
--- 4394,4400 ----
  	  (match_operand:VF_128 1 "register_operand" "v")
  	  (const_int 1)))]
    "TARGET_AVX512F && TARGET_64BIT"
!   "vcvtusi2<ssescalarmodesuffix>{q}\t{%2, <round_op3>%1, %0|%0, %1<round_op3>, %2}"
    [(set_attr "type" "sseicvt")
     (set_attr "prefix" "evex")
     (set_attr "mode" "<ssescalarmode>")])
***************
*** 7230,7241 ****
  (define_insn "vec_extract_lo_<mode><mask_name>"
    [(set (match_operand:<ssehalfvecmode> 0 "<store_mask_predicate>" "=<store_mask_constraint>,v")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:V8FI 1 "nonimmediate_operand" "v,m")
  	  (parallel [(const_int 0) (const_int 1)
              (const_int 2) (const_int 3)])))]
!   "TARGET_AVX512F && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
  {
!   if (<mask_applied> || !TARGET_AVX512VL)
      return "vextract<shuffletype>64x4\t{$0x0, %1, %0<mask_operand2>|%0<mask_operand2>, %1, 0x0}";
    else
      return "#";
--- 7227,7239 ----
  (define_insn "vec_extract_lo_<mode><mask_name>"
    [(set (match_operand:<ssehalfvecmode> 0 "<store_mask_predicate>" "=<store_mask_constraint>,v")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:V8FI 1 "<store_mask_predicate>" "v,<store_mask_constraint>")
  	  (parallel [(const_int 0) (const_int 1)
              (const_int 2) (const_int 3)])))]
!   "TARGET_AVX512F
!    && (<mask_applied> || !(MEM_P (operands[0]) && MEM_P (operands[1])))"
  {
!   if (<mask_applied> || (!TARGET_AVX512VL && !MEM_P (operands[1])))
      return "vextract<shuffletype>64x4\t{$0x0, %1, %0<mask_operand2>|%0<mask_operand2>, %1, 0x0}";
    else
      return "#";
***************
*** 7374,7387 ****
  (define_insn "vec_extract_lo_<mode><mask_name>"
    [(set (match_operand:<ssehalfvecmode> 0 "nonimmediate_operand" "=v,m")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:V16FI 1 "nonimmediate_operand" "vm,v")
  	  (parallel [(const_int 0) (const_int 1)
                       (const_int 2) (const_int 3)
                       (const_int 4) (const_int 5)
                       (const_int 6) (const_int 7)])))]
    "TARGET_AVX512F
     && <mask_mode512bit_condition>
!    && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
  {
    if (<mask_applied>)
      return "vextract<shuffletype>32x8\t{$0x0, %1, %0<mask_operand2>|%0<mask_operand2>, %1, 0x0}";
--- 7372,7386 ----
  (define_insn "vec_extract_lo_<mode><mask_name>"
    [(set (match_operand:<ssehalfvecmode> 0 "nonimmediate_operand" "=v,m")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:V16FI 1 "<store_mask_predicate>"
! 				 "<store_mask_constraint>,v")
  	  (parallel [(const_int 0) (const_int 1)
                       (const_int 2) (const_int 3)
                       (const_int 4) (const_int 5)
                       (const_int 6) (const_int 7)])))]
    "TARGET_AVX512F
     && <mask_mode512bit_condition>
!    && (<mask_applied> || !(MEM_P (operands[0]) && MEM_P (operands[1])))"
  {
    if (<mask_applied>)
      return "vextract<shuffletype>32x8\t{$0x0, %1, %0<mask_operand2>|%0<mask_operand2>, %1, 0x0}";
***************
*** 7413,7423 ****
  (define_insn "vec_extract_lo_<mode><mask_name>"
    [(set (match_operand:<ssehalfvecmode> 0 "<store_mask_predicate>" "=v,m")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:VI8F_256 1 "nonimmediate_operand" "vm,v")
  	  (parallel [(const_int 0) (const_int 1)])))]
    "TARGET_AVX
     && <mask_avx512vl_condition> && <mask_avx512dq_condition>
!    && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
  {
    if (<mask_applied>)
      return "vextract<shuffletype>64x2\t{$0x0, %1, %0%{%3%}|%0%{%3%}, %1, 0x0}";
--- 7412,7423 ----
  (define_insn "vec_extract_lo_<mode><mask_name>"
    [(set (match_operand:<ssehalfvecmode> 0 "<store_mask_predicate>" "=v,m")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:VI8F_256 1 "<store_mask_predicate>"
! 				    "<store_mask_constraint>,v")
  	  (parallel [(const_int 0) (const_int 1)])))]
    "TARGET_AVX
     && <mask_avx512vl_condition> && <mask_avx512dq_condition>
!    && (<mask_applied> || !(MEM_P (operands[0]) && MEM_P (operands[1])))"
  {
    if (<mask_applied>)
      return "vextract<shuffletype>64x2\t{$0x0, %1, %0%{%3%}|%0%{%3%}, %1, 0x0}";
***************
*** 7493,7504 ****
  
  
  (define_insn "vec_extract_lo_<mode><mask_name>"
!   [(set (match_operand:<ssehalfvecmode> 0 "<store_mask_predicate>" "=<store_mask_constraint>")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:VI4F_256 1 "register_operand" "v")
  	  (parallel [(const_int 0) (const_int 1)
  		     (const_int 2) (const_int 3)])))]
!   "TARGET_AVX && <mask_avx512vl_condition> && <mask_avx512dq_condition>"
  {
    if (<mask_applied>)
      return "vextract<shuffletype>32x4\t{$0x0, %1, %0<mask_operand2>|%0<mask_operand2>, %1, 0x0}";
--- 7493,7508 ----
  
  
  (define_insn "vec_extract_lo_<mode><mask_name>"
!   [(set (match_operand:<ssehalfvecmode> 0 "<store_mask_predicate>"
! 					  "=<store_mask_constraint>,v")
  	(vec_select:<ssehalfvecmode>
! 	  (match_operand:VI4F_256 1 "<store_mask_predicate>"
! 				    "v,<store_mask_constraint>")
  	  (parallel [(const_int 0) (const_int 1)
  		     (const_int 2) (const_int 3)])))]
!   "TARGET_AVX
!    && <mask_avx512vl_condition> && <mask_avx512dq_condition>
!    && (<mask_applied> || !(MEM_P (operands[0]) && MEM_P (operands[1])))"
  {
    if (<mask_applied>)
      return "vextract<shuffletype>32x4\t{$0x0, %1, %0<mask_operand2>|%0<mask_operand2>, %1, 0x0}";
***************
*** 10542,10571 ****
         (const_string "0")))
     (set_attr "mode" "<sseinsnmode>")])
  
  (define_insn "<shift_insn><mode>3<mask_name>"
!   [(set (match_operand:VI2_AVX2_AVX512BW 0 "register_operand" "=x,v")
  	(any_lshift:VI2_AVX2_AVX512BW
! 	  (match_operand:VI2_AVX2_AVX512BW 1 "register_operand" "0,v")
! 	  (match_operand:DI 2 "nonmemory_operand" "xN,vN")))]
    "TARGET_SSE2 && <mask_mode512bit_condition> && <mask_avx512bw_condition>"
    "@
     p<vshift><ssemodesuffix>\t{%2, %0|%0, %2}
     vp<vshift><ssemodesuffix>\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
!   [(set_attr "isa" "noavx,avx")
     (set_attr "type" "sseishft")
     (set (attr "length_immediate")
       (if_then_else (match_operand 2 "const_int_operand")
         (const_string "1")
         (const_string "0")))
!    (set_attr "prefix_data16" "1,*")
!    (set_attr "prefix" "orig,vex")
     (set_attr "mode" "<sseinsnmode>")])
  
  (define_insn "<shift_insn><mode>3<mask_name>"
    [(set (match_operand:VI48_AVX2 0 "register_operand" "=x,x,v")
  	(any_lshift:VI48_AVX2
  	  (match_operand:VI48_AVX2 1 "register_operand" "0,x,v")
! 	  (match_operand:DI 2 "nonmemory_operand" "xN,xN,vN")))]
    "TARGET_SSE2 && <mask_mode512bit_condition>"
    "@
     p<vshift><ssemodesuffix>\t{%2, %0|%0, %2}
--- 10546,10594 ----
         (const_string "0")))
     (set_attr "mode" "<sseinsnmode>")])
  
+ (define_mode_attr vshift_count
+   [(V32HI "v") (V16HI "x") (V8HI "x")])
+ 
  (define_insn "<shift_insn><mode>3<mask_name>"
!   [(set (match_operand:VI2_AVX2_AVX512BW 0 "register_operand" "=x,v,v")
  	(any_lshift:VI2_AVX2_AVX512BW
! 	  (match_operand:VI2_AVX2_AVX512BW 1 "register_operand" "0,v,v")
! 	  (match_operand:DI 2 "nonmemory_operand" "xN,<vshift_count>N,vN")))]
    "TARGET_SSE2 && <mask_mode512bit_condition> && <mask_avx512bw_condition>"
    "@
     p<vshift><ssemodesuffix>\t{%2, %0|%0, %2}
+    vp<vshift><ssemodesuffix>\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}
     vp<vshift><ssemodesuffix>\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
!   [(set_attr "isa" "noavx,avx,avx512vl")
     (set_attr "type" "sseishft")
     (set (attr "length_immediate")
       (if_then_else (match_operand 2 "const_int_operand")
         (const_string "1")
         (const_string "0")))
!    (set_attr "prefix_data16" "1,*,*")
!    (set_attr "prefix" "orig,vex,vex")
!    (set_attr "mode" "<sseinsnmode>")])
! 
! (define_insn "*<shift_insn><mode>3<mask_name>_1"
!   [(set (match_operand:VI48_AVX2 0 "register_operand" "=v")
! 	(any_lshift:VI48_AVX2
! 	  (match_operand:VI48_AVX2 1 "register_operand" "v")
! 	  (match_operand:DI 2 "nonmemory_operand" "vN")))]
!   "TARGET_AVX512BW && TARGET_AVX512VL"
!   "vp<vshift><ssemodesuffix>\t{%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %2}"
!   [(set_attr "type" "sseishft")
!    (set (attr "length_immediate")
!      (if_then_else (match_operand 2 "const_int_operand")
!        (const_string "1")
!        (const_string "0")))
!    (set_attr "prefix" "evex")
     (set_attr "mode" "<sseinsnmode>")])
  
  (define_insn "<shift_insn><mode>3<mask_name>"
    [(set (match_operand:VI48_AVX2 0 "register_operand" "=x,x,v")
  	(any_lshift:VI48_AVX2
  	  (match_operand:VI48_AVX2 1 "register_operand" "0,x,v")
! 	  (match_operand:DI 2 "nonmemory_operand" "xN,xN,xN")))]
    "TARGET_SSE2 && <mask_mode512bit_condition>"
    "@
     p<vshift><ssemodesuffix>\t{%2, %0|%0, %2}
***************
*** 13612,13618 ****
  	  (match_operand:DI 1 "nonimmediate_operand"
  	  "  0, 0,x ,r ,xm,?!*Yn,0,x,0,0,x")
  	  (match_operand:DI 2 "vector_move_operand"
! 	  "*rm,rm,rm,C ,C ,C ,x,x,x,m,m")))]
    "TARGET_SSE"
    "@
     pinsrq\t{$1, %2, %0|%0, %2, 1}
--- 13635,13641 ----
  	  (match_operand:DI 1 "nonimmediate_operand"
  	  "  0, 0,x ,r ,xm,?!*Yn,0,x,0,0,x")
  	  (match_operand:DI 2 "vector_move_operand"
! 	  " rm,rm,rm,C ,C ,C ,x,x,x,m,m")))]
    "TARGET_SSE"
    "@
     pinsrq\t{$1, %2, %0|%0, %2, 1}
diff -Nrcpad gcc-6.4.0/gcc/config/i386/x86-tune.def gcc-6.5.0/gcc/config/i386/x86-tune.def
*** gcc-6.4.0/gcc/config/i386/x86-tune.def	Thu Feb  4 07:52:08 2016
--- gcc-6.5.0/gcc/config/i386/x86-tune.def	Mon Dec  4 11:40:44 2017
*************** DEF_TUNE (X86_TUNE_ADJUST_UNROLL, "adjus
*** 555,557 ****
--- 555,561 ----
     if-converted to one.  */
  DEF_TUNE (X86_TUNE_ONE_IF_CONV_INSN, "one_if_conv_insn",
  	  m_SILVERMONT | m_KNL | m_INTEL | m_CORE_ALL | m_GENERIC)
+ 
+ /* X86_TUNE_EMIT_VZEROUPPER: This enables vzeroupper instruction insertion
+    before a transfer of control flow out of the function.  */
+ DEF_TUNE (X86_TUNE_EMIT_VZEROUPPER, "emit_vzeroupper", ~m_KNL)
diff -Nrcpad gcc-6.4.0/gcc/config/mips/frame-header-opt.c gcc-6.5.0/gcc/config/mips/frame-header-opt.c
*** gcc-6.4.0/gcc/config/mips/frame-header-opt.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/mips/frame-header-opt.c	Mon Jun 25 16:50:58 2018
*************** void
*** 98,105 ****
  mips_register_frame_header_opt (void)
  {
    opt_pass *p = make_pass_ipa_frame_header_opt (g);
!   static struct register_pass_info f =
!     {p, "comdats", 1, PASS_POS_INSERT_AFTER };
    register_pass (&f);
  }
  
--- 98,104 ----
  mips_register_frame_header_opt (void)
  {
    opt_pass *p = make_pass_ipa_frame_header_opt (g);
!   struct register_pass_info f = { p, "comdats", 1, PASS_POS_INSERT_AFTER };
    register_pass (&f);
  }
  
diff -Nrcpad gcc-6.4.0/gcc/config/nvptx/nvptx.c gcc-6.5.0/gcc/config/nvptx/nvptx.c
*** gcc-6.4.0/gcc/config/nvptx/nvptx.c	Tue Jan 10 12:07:13 2017
--- gcc-6.5.0/gcc/config/nvptx/nvptx.c	Fri Mar 30 15:47:23 2018
*************** output_init_frag (rtx sym)
*** 1483,1491 ****
    
    if (sym)
      {
!       fprintf (asm_out_file, "generic(");
        output_address (VOIDmode, sym);
!       fprintf (asm_out_file, val ? ") + " : ")");
      }
  
    if (!sym || val)
--- 1483,1497 ----
    
    if (sym)
      {
!       bool function = (SYMBOL_REF_DECL (sym)
! 		       && (TREE_CODE (SYMBOL_REF_DECL (sym)) == FUNCTION_DECL));
!       if (!function)
! 	fprintf (asm_out_file, "generic(");
        output_address (VOIDmode, sym);
!       if (!function)
! 	fprintf (asm_out_file, ")");
!       if (val)
! 	fprintf (asm_out_file, " + ");
      }
  
    if (!sym || val)
*************** static void
*** 1610,1615 ****
--- 1616,1624 ----
  nvptx_assemble_decl_begin (FILE *file, const char *name, const char *section,
  			   const_tree type, HOST_WIDE_INT size, unsigned align)
  {
+   bool atype = (TREE_CODE (type) == ARRAY_TYPE)
+     && (TYPE_DOMAIN (type) == NULL_TREE);
+ 
    while (TREE_CODE (type) == ARRAY_TYPE)
      type = TREE_TYPE (type);
  
*************** nvptx_assemble_decl_begin (FILE *file, c
*** 1649,1654 ****
--- 1658,1665 ----
      /* We make everything an array, to simplify any initialization
         emission.  */
      fprintf (file, "[" HOST_WIDE_INT_PRINT_DEC "]", init_frag.remaining);
+   else if (atype)
+     fprintf (file, "[]");
  }
  
  /* Called when the initializer for a decl has been completely output through
diff -Nrcpad gcc-6.4.0/gcc/config/pa/pa.c gcc-6.5.0/gcc/config/pa/pa.c
*** gcc-6.4.0/gcc/config/pa/pa.c	Thu May 11 00:15:04 2017
--- gcc-6.5.0/gcc/config/pa/pa.c	Sun Jul 29 16:11:34 2018
*************** static bool pa_cannot_force_const_mem (m
*** 194,199 ****
--- 194,201 ----
  static bool pa_legitimate_constant_p (machine_mode, rtx);
  static unsigned int pa_section_type_flags (tree, const char *, int);
  static bool pa_legitimate_address_p (machine_mode, rtx, bool);
+ static bool pa_callee_copies (cumulative_args_t, machine_mode,
+ 			      const_tree, bool);
  
  /* The following extra sections are only used for SOM.  */
  static GTY(()) section *som_readonly_data_section;
*************** static size_t n_deferred_plabels = 0;
*** 342,348 ****
  #undef TARGET_PASS_BY_REFERENCE
  #define TARGET_PASS_BY_REFERENCE pa_pass_by_reference
  #undef TARGET_CALLEE_COPIES
! #define TARGET_CALLEE_COPIES hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true
  #undef TARGET_ARG_PARTIAL_BYTES
  #define TARGET_ARG_PARTIAL_BYTES pa_arg_partial_bytes
  #undef TARGET_FUNCTION_ARG
--- 344,350 ----
  #undef TARGET_PASS_BY_REFERENCE
  #define TARGET_PASS_BY_REFERENCE pa_pass_by_reference
  #undef TARGET_CALLEE_COPIES
! #define TARGET_CALLEE_COPIES pa_callee_copies
  #undef TARGET_ARG_PARTIAL_BYTES
  #define TARGET_ARG_PARTIAL_BYTES pa_arg_partial_bytes
  #undef TARGET_FUNCTION_ARG
*************** pa_emit_move_sequence (rtx *operands, ma
*** 1719,1727 ****
  		}
  	      else
  		emit_move_insn (scratch_reg, XEXP (op1, 0));
! 	      emit_insn (gen_rtx_SET (operand0,
! 				  replace_equiv_address (op1, scratch_reg)));
! 	      return 1;
  	    }
  	}
        else if ((!INT14_OK_STRICT && symbolic_memory_operand (op1, VOIDmode))
--- 1721,1727 ----
  		}
  	      else
  		emit_move_insn (scratch_reg, XEXP (op1, 0));
! 	      op1 = replace_equiv_address (op1, scratch_reg);
  	    }
  	}
        else if ((!INT14_OK_STRICT && symbolic_memory_operand (op1, VOIDmode))
*************** pa_emit_move_sequence (rtx *operands, ma
*** 1731,1740 ****
  	  /* Load memory address into SCRATCH_REG.  */
  	  scratch_reg = force_mode (word_mode, scratch_reg);
  	  emit_move_insn (scratch_reg, XEXP (op1, 0));
! 	  emit_insn (gen_rtx_SET (operand0,
! 				  replace_equiv_address (op1, scratch_reg)));
! 	  return 1;
  	}
      }
    else if (scratch_reg
  	   && FP_REG_P (operand1)
--- 1731,1740 ----
  	  /* Load memory address into SCRATCH_REG.  */
  	  scratch_reg = force_mode (word_mode, scratch_reg);
  	  emit_move_insn (scratch_reg, XEXP (op1, 0));
! 	  op1 = replace_equiv_address (op1, scratch_reg);
  	}
+       emit_insn (gen_rtx_SET (operand0, op1));
+       return 1;
      }
    else if (scratch_reg
  	   && FP_REG_P (operand1)
*************** pa_emit_move_sequence (rtx *operands, ma
*** 1772,1780 ****
  		}
  	      else
  		emit_move_insn (scratch_reg, XEXP (op0, 0));
! 	      emit_insn (gen_rtx_SET (replace_equiv_address (op0, scratch_reg),
! 				      operand1));
! 	      return 1;
  	    }
  	}
        else if ((!INT14_OK_STRICT && symbolic_memory_operand (op0, VOIDmode))
--- 1772,1778 ----
  		}
  	      else
  		emit_move_insn (scratch_reg, XEXP (op0, 0));
! 	      op0 = replace_equiv_address (op0, scratch_reg);
  	    }
  	}
        else if ((!INT14_OK_STRICT && symbolic_memory_operand (op0, VOIDmode))
*************** pa_emit_move_sequence (rtx *operands, ma
*** 1784,1793 ****
  	  /* Load memory address into SCRATCH_REG.  */
  	  scratch_reg = force_mode (word_mode, scratch_reg);
  	  emit_move_insn (scratch_reg, XEXP (op0, 0));
! 	  emit_insn (gen_rtx_SET (replace_equiv_address (op0, scratch_reg),
! 				  operand1));
! 	  return 1;
  	}
      }
    /* Handle secondary reloads for loads of FP registers from constant
       expressions by forcing the constant into memory.  For the most part,
--- 1782,1791 ----
  	  /* Load memory address into SCRATCH_REG.  */
  	  scratch_reg = force_mode (word_mode, scratch_reg);
  	  emit_move_insn (scratch_reg, XEXP (op0, 0));
! 	  op0 = replace_equiv_address (op0, scratch_reg);
  	}
+       emit_insn (gen_rtx_SET (op0, operand1));
+       return 1;
      }
    /* Handle secondary reloads for loads of FP registers from constant
       expressions by forcing the constant into memory.  For the most part,
*************** hppa_profile_hook (int label_no)
*** 4565,4577 ****
       lcla2 and load_offset_label_address insn patterns.  */
    rtx reg = gen_reg_rtx (SImode);
    rtx_code_label *label_rtx = gen_label_rtx ();
-   rtx mcount = gen_rtx_MEM (Pmode, gen_rtx_SYMBOL_REF (Pmode, "_mcount"));
    int reg_parm_stack_space = REG_PARM_STACK_SPACE (NULL_TREE);
!   rtx arg_bytes, begin_label_rtx;
    rtx_insn *call_insn;
    char begin_label_name[16];
    bool use_mcount_pcrel_call;
  
    /* If we can reach _mcount with a pc-relative call, we can optimize
       loading the address of the current function.  This requires linker
       long branch stub support.  */
--- 4563,4579 ----
       lcla2 and load_offset_label_address insn patterns.  */
    rtx reg = gen_reg_rtx (SImode);
    rtx_code_label *label_rtx = gen_label_rtx ();
    int reg_parm_stack_space = REG_PARM_STACK_SPACE (NULL_TREE);
!   rtx arg_bytes, begin_label_rtx, mcount, sym;
    rtx_insn *call_insn;
    char begin_label_name[16];
    bool use_mcount_pcrel_call;
  
+   /* Set up call destination.  */
+   sym = gen_rtx_SYMBOL_REF (Pmode, "_mcount");
+   pa_encode_label (sym);
+   mcount = gen_rtx_MEM (Pmode, sym);
+ 
    /* If we can reach _mcount with a pc-relative call, we can optimize
       loading the address of the current function.  This requires linker
       long branch stub support.  */
*************** pa_legitimate_address_p (machine_mode mo
*** 10462,10470 ****
  
        if (!TARGET_DISABLE_INDEXING
  	  && GET_CODE (index) == MULT
! 	  && MODE_OK_FOR_SCALED_INDEXING_P (mode)
  	  && REG_P (XEXP (index, 0))
  	  && GET_MODE (XEXP (index, 0)) == Pmode
  	  && (strict ? STRICT_REG_OK_FOR_INDEX_P (XEXP (index, 0))
  		     : REG_OK_FOR_INDEX_P (XEXP (index, 0)))
  	  && GET_CODE (XEXP (index, 1)) == CONST_INT
--- 10464,10479 ----
  
        if (!TARGET_DISABLE_INDEXING
  	  && GET_CODE (index) == MULT
! 	  /* Only accept base operands with the REG_POINTER flag prior to
! 	     reload on targets with non-equivalent space registers.  */
! 	  && (TARGET_NO_SPACE_REGS
! 	      || (base == XEXP (x, 1)
! 		  && (reload_completed
! 		      || (reload_in_progress && HARD_REGISTER_P (base))
! 		      || REG_POINTER (base))))
  	  && REG_P (XEXP (index, 0))
  	  && GET_MODE (XEXP (index, 0)) == Pmode
+ 	  && MODE_OK_FOR_SCALED_INDEXING_P (mode)
  	  && (strict ? STRICT_REG_OK_FOR_INDEX_P (XEXP (index, 0))
  		     : REG_OK_FOR_INDEX_P (XEXP (index, 0)))
  	  && GET_CODE (XEXP (index, 1)) == CONST_INT
*************** pa_output_addr_vec (rtx lab, rtx body)
*** 10589,10594 ****
--- 10598,10605 ----
  {
    int idx, vlen = XVECLEN (body, 0);
  
+   if (!TARGET_SOM)
+     fputs ("\t.align 4\n", asm_out_file);
    targetm.asm_out.internal_label (asm_out_file, "L", CODE_LABEL_NUMBER (lab));
    if (TARGET_GAS)
      fputs ("\t.begin_brtab\n", asm_out_file);
*************** pa_maybe_emit_compare_and_swap_exchange_
*** 10699,10702 ****
--- 10710,10728 ----
    return NULL_RTX;
  }
  
+ /* Implement TARGET_CALLEE_COPIES.  The callee is responsible for copying
+    arguments passed by hidden reference in the 32-bit HP runtime.  Users
+    can override this behavior for better compatibility with openmp at the
+    risk of library incompatibilities.  Arguments are always passed by value
+    in the 64-bit HP runtime.  */
+ 
+ static bool
+ pa_callee_copies (cumulative_args_t cum ATTRIBUTE_UNUSED,
+ 		  machine_mode mode ATTRIBUTE_UNUSED,
+ 		  const_tree type ATTRIBUTE_UNUSED,
+ 		  bool named ATTRIBUTE_UNUSED)
+ {
+   return !TARGET_CALLER_COPIES;
+ }
+ 
  #include "gt-pa.h"
diff -Nrcpad gcc-6.4.0/gcc/config/pa/pa.h gcc-6.5.0/gcc/config/pa/pa.h
*** gcc-6.4.0/gcc/config/pa/pa.h	Sat Oct 29 15:43:40 2016
--- gcc-6.5.0/gcc/config/pa/pa.h	Sun Jul 29 16:11:34 2018
*************** do {									     \
*** 1159,1166 ****
     PREFIX is the class of label and NUM is the number within the class.
     This is suitable for output with `assemble_name'.  */
  
! #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
!   sprintf (LABEL, "*%c$%s%04ld", (PREFIX)[0], (PREFIX) + 1, (long)(NUM))
  
  /* Output the definition of a compiler-generated label named NAME.  */
  
--- 1159,1176 ----
     PREFIX is the class of label and NUM is the number within the class.
     This is suitable for output with `assemble_name'.  */
  
! #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)		\
!   do								\
!     {								\
!       char *__p;						\
!       (LABEL)[0] = '*';						\
!       (LABEL)[1] = (PREFIX)[0];					\
!       (LABEL)[2] = '$';						\
!       __p = stpcpy (&(LABEL)[3], &(PREFIX)[1]);			\
!       sprint_ul (__p, (unsigned long) (NUM));			\
!     }								\
!   while (0)
! 
  
  /* Output the definition of a compiler-generated label named NAME.  */
  
*************** do {									     \
*** 1178,1212 ****
  #define ASM_OUTPUT_ASCII(FILE, P, SIZE)  \
    pa_output_ascii ((FILE), (P), (SIZE))
  
! /* Jump tables are always placed in the text section.  Technically, it
!    is possible to put them in the readonly data section.  This has the
!    benefit of getting the table out of .text and reducing branch lengths
!    as a result.
  
!    The downside is that an additional insn (addil) is needed to access
     the table when generating PIC code.  The address difference table
!    also has to use 32-bit pc-relative relocations.  Currently, GAS does
!    not support these relocations, although it is easily modified to do
!    this operation.
  
     The table entries need to look like "$L1+(.+8-$L0)-$PIC_pcrel$0"
     when using ELF GAS.  A simple difference can be used when using
!    SOM GAS or the HP assembler.  The final downside is GDB complains
!    about the nesting of the label for the table when debugging.  */
  
  #define JUMP_TABLES_IN_TEXT_SECTION 1
  
  /* This is how to output an element of a case-vector that is absolute.  */
  
  #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
!   fprintf (FILE, "\t.word L$%04d\n", VALUE)
  
  /* This is how to output an element of a case-vector that is relative. 
     Since we always place jump tables in the text section, the difference
     is absolute and requires no relocation.  */
  
  #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL)  \
!   fprintf (FILE, "\t.word L$%04d-L$%04d\n", VALUE, REL)
  
  /* This is how to output an absolute case-vector.  */
  
--- 1188,1224 ----
  #define ASM_OUTPUT_ASCII(FILE, P, SIZE)  \
    pa_output_ascii ((FILE), (P), (SIZE))
  
! /* Jump tables are always placed in the text section.  We have to do
!    this for the HP-UX SOM target as we can't switch sections in the
!    middle of a function.
  
!    On ELF targets, it is possible to put them in the readonly-data section.
!    This would get the table out of .text and reduce branch lengths.
! 
!    A downside is that an additional insn (addil) is needed to access
     the table when generating PIC code.  The address difference table
!    also has to use 32-bit pc-relative relocations.
  
     The table entries need to look like "$L1+(.+8-$L0)-$PIC_pcrel$0"
     when using ELF GAS.  A simple difference can be used when using
!    the HP assembler.
! 
!    The final downside is GDB complains about the nesting of the label
!    for the table.  */
  
  #define JUMP_TABLES_IN_TEXT_SECTION 1
  
  /* This is how to output an element of a case-vector that is absolute.  */
  
  #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
!   fprintf (FILE, "\t.word L$%d\n", VALUE)
  
  /* This is how to output an element of a case-vector that is relative. 
     Since we always place jump tables in the text section, the difference
     is absolute and requires no relocation.  */
  
  #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL)  \
!   fprintf (FILE, "\t.word L$%d-L$%d\n", VALUE, REL)
  
  /* This is how to output an absolute case-vector.  */
  
diff -Nrcpad gcc-6.4.0/gcc/config/pa/pa.md gcc-6.5.0/gcc/config/pa/pa.md
*** gcc-6.4.0/gcc/config/pa/pa.md	Tue Nov  1 18:17:58 2016
--- gcc-6.5.0/gcc/config/pa/pa.md	Thu Sep 20 01:13:58 2018
***************
*** 84,89 ****
--- 84,90 ----
     UNSPEC_TLSGD_PIC
     UNSPEC_TLSLDM_PIC
     UNSPEC_TLSIE_PIC
+    UNSPEC_MEMORY_BARRIER
    ])
  
  ;; UNSPEC_VOLATILE:
***************
*** 2536,2559 ****
  
    xoperands[0] = operands[0];
    xoperands[1] = operands[1];
-   xoperands[2] = gen_label_rtx ();
  
-   (*targetm.asm_out.internal_label) (asm_out_file, \"L\",
- 				     CODE_LABEL_NUMBER (xoperands[2]));
-   output_asm_insn (\"mfia %0\", xoperands);
- 
-   /* If we're trying to load the address of a label that happens to be
-      close, then we can use a shorter sequence.  */
    if (GET_CODE (operands[1]) == LABEL_REF
!       && !LABEL_REF_NONLOCAL_P (operands[1])
!       && INSN_ADDRESSES_SET_P ()
!       && abs (INSN_ADDRESSES (INSN_UID (XEXP (operands[1], 0)))
! 	        - INSN_ADDRESSES (INSN_UID (insn))) < 8100)
!     output_asm_insn (\"ldo %1-%2(%0),%0\", xoperands);
    else
      {
!       output_asm_insn (\"addil L%%%1-%2,%0\", xoperands);
!       output_asm_insn (\"ldo R%%%1-%2(%0),%0\", xoperands);
      }
    return \"\";
  }"
--- 2537,2576 ----
  
    xoperands[0] = operands[0];
    xoperands[1] = operands[1];
  
    if (GET_CODE (operands[1]) == LABEL_REF
!       && !LABEL_REF_NONLOCAL_P (operands[1]))
!     {
!       xoperands[2] = gen_label_rtx ();
!       (*targetm.asm_out.internal_label) (asm_out_file, \"L\",
! 					 CODE_LABEL_NUMBER (xoperands[2]));
!       output_asm_insn (\"mfia %0\", xoperands);
! 
!       /* If we're trying to load the address of a label that happens to be
! 	 close, then we can use a shorter sequence.  */
!       if (INSN_ADDRESSES_SET_P ()
! 	  && abs (INSN_ADDRESSES (INSN_UID (XEXP (operands[1], 0)))
! 		  - INSN_ADDRESSES (INSN_UID (insn))) < 8100)
! 	output_asm_insn (\"ldo %1-%2(%0),%0\", xoperands);
!       else
! 	{
! 	  output_asm_insn (\"addil L%%%1-%2,%0\", xoperands);
! 	  output_asm_insn (\"ldo R%%%1-%2(%0),%0\", xoperands);
! 	}
!     }
    else
      {
!       /* Load using linkage table.  */
!       if (TARGET_64BIT)
! 	{
! 	  output_asm_insn (\"addil LT%%%1,%%r27\", xoperands);
! 	  output_asm_insn (\"ldd RT%%%1(%0),%0\", xoperands);
! 	}
!       else
! 	{
! 	  output_asm_insn (\"addil LT%%%1,%%r19\", xoperands);
! 	  output_asm_insn (\"ldw RT%%%1(%0),%0\", xoperands);
! 	}
      }
    return \"\";
  }"
***************
*** 2570,2594 ****
  
    xoperands[0] = operands[0];
    xoperands[1] = operands[1];
-   xoperands[2] = gen_label_rtx ();
- 
-   output_asm_insn (\"bl .+8,%0\", xoperands);
-   output_asm_insn (\"depi 0,31,2,%0\", xoperands);
-   (*targetm.asm_out.internal_label) (asm_out_file, \"L\",
- 				     CODE_LABEL_NUMBER (xoperands[2]));
  
-   /* If we're trying to load the address of a label that happens to be
-      close, then we can use a shorter sequence.  */
    if (GET_CODE (operands[1]) == LABEL_REF
!       && !LABEL_REF_NONLOCAL_P (operands[1])
!       && INSN_ADDRESSES_SET_P ()
!       && abs (INSN_ADDRESSES (INSN_UID (XEXP (operands[1], 0)))
! 	        - INSN_ADDRESSES (INSN_UID (insn))) < 8100)
!     output_asm_insn (\"ldo %1-%2(%0),%0\", xoperands);
    else
      {
!       output_asm_insn (\"addil L%%%1-%2,%0\", xoperands);
!       output_asm_insn (\"ldo R%%%1-%2(%0),%0\", xoperands);
      }
    return \"\";
  }"
--- 2587,2619 ----
  
    xoperands[0] = operands[0];
    xoperands[1] = operands[1];
  
    if (GET_CODE (operands[1]) == LABEL_REF
!       && !LABEL_REF_NONLOCAL_P (operands[1]))
!     {
!       xoperands[2] = gen_label_rtx ();
!       output_asm_insn (\"bl .+8,%0\", xoperands);
!       output_asm_insn (\"depi 0,31,2,%0\", xoperands);
!       (*targetm.asm_out.internal_label) (asm_out_file, \"L\",
! 					 CODE_LABEL_NUMBER (xoperands[2]));
! 
!       /* If we're trying to load the address of a label that happens to be
! 	 close, then we can use a shorter sequence.  */
!       if (INSN_ADDRESSES_SET_P ()
! 	  && abs (INSN_ADDRESSES (INSN_UID (XEXP (operands[1], 0)))
! 		  - INSN_ADDRESSES (INSN_UID (insn))) < 8100)
! 	output_asm_insn (\"ldo %1-%2(%0),%0\", xoperands);
!       else
! 	{
! 	  output_asm_insn (\"addil L%%%1-%2,%0\", xoperands);
! 	  output_asm_insn (\"ldo R%%%1-%2(%0),%0\", xoperands);
! 	}
!     }
    else
      {
!       /* Load using linkage table.  */
!       output_asm_insn (\"addil LT%%%1,%%r19\", xoperands);
!       output_asm_insn (\"ldw RT%%%1(%0),%0\", xoperands);
      }
    return \"\";
  }"
*************** add,l %2,%3,%3\;bv,n %%r0(%3)"
*** 9942,9955 ****
  ;; doubleword loads and stores are not guaranteed to be atomic
  ;; when referencing the I/O address space.
  
- ;; The kernel cmpxchg operation on linux is not atomic with respect to
- ;; memory stores on SMP machines, so we must do stores using a cmpxchg
- ;; operation.
- 
  ;; These patterns are at the bottom so the non atomic versions are preferred.
  
- ;; Implement atomic QImode store using exchange.
- 
  (define_expand "atomic_storeqi"
    [(match_operand:QI 0 "memory_operand")                ;; memory
     (match_operand:QI 1 "register_operand")              ;; val out
--- 9967,9974 ----
*************** add,l %2,%3,%3\;bv,n %%r0(%3)"
*** 10002,10026 ****
    FAIL;
  })
  
! ;; Implement atomic SFmode store using exchange.
! 
! (define_expand "atomic_storesf"
!   [(match_operand:SF 0 "memory_operand")                ;; memory
!    (match_operand:SF 1 "register_operand")              ;; val out
!    (match_operand:SI 2 "const_int_operand")]            ;; model
!   ""
! {
!   if (TARGET_SYNC_LIBCALL)
!     {
!       rtx mem = operands[0];
!       rtx val = operands[1];
!       if (pa_maybe_emit_compare_and_swap_exchange_loop (NULL_RTX, mem, val))
! 	DONE;
!     }
!   FAIL;
! })
! 
! ;; Implement atomic DImode load using 64-bit floating point load.
  
  (define_expand "atomic_loaddi"
    [(match_operand:DI 0 "register_operand")              ;; val out
--- 10021,10027 ----
    FAIL;
  })
  
! ;; Implement atomic DImode load.
  
  (define_expand "atomic_loaddi"
    [(match_operand:DI 0 "register_operand")              ;; val out
*************** add,l %2,%3,%3\;bv,n %%r0(%3)"
*** 10035,10063 ****
  
    model = memmodel_from_int (INTVAL (operands[2]));
    operands[1] = force_reg (SImode, XEXP (operands[1], 0));
-   expand_mem_thread_fence (model);
-   emit_insn (gen_atomic_loaddi_1 (operands[0], operands[1]));
    if (is_mm_seq_cst (model))
      expand_mem_thread_fence (model);
    DONE;
  })
  
  (define_insn "atomic_loaddi_1"
!   [(set (match_operand:DI 0 "register_operand" "=f,r")
!         (mem:DI (match_operand:SI 1 "register_operand" "r,r")))
!    (clobber (match_scratch:DI 2 "=X,f"))]
    "!TARGET_64BIT && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT"
!   "@
!    {fldds|fldd} 0(%1),%0
!    {fldds|fldd} 0(%1),%2\n\t{fstds|fstd} %2,-16(%%sp)\n\t{ldws|ldw} -16(%%sp),%0\n\t{ldws|ldw} -12(%%sp),%R0"
!   [(set_attr "type" "move,move")
!    (set_attr "length" "4,16")])
  
  ;; Implement atomic DImode store.
  
  (define_expand "atomic_storedi"
    [(match_operand:DI 0 "memory_operand")                ;; memory
!    (match_operand:DI 1 "register_operand")              ;; val out
     (match_operand:SI 2 "const_int_operand")]            ;; model
    ""
  {
--- 10036,10062 ----
  
    model = memmodel_from_int (INTVAL (operands[2]));
    operands[1] = force_reg (SImode, XEXP (operands[1], 0));
    if (is_mm_seq_cst (model))
      expand_mem_thread_fence (model);
+   emit_insn (gen_atomic_loaddi_1 (operands[0], operands[1]));
+   expand_mem_thread_fence (model);
    DONE;
  })
  
  (define_insn "atomic_loaddi_1"
!   [(set (match_operand:DI 0 "register_operand" "=r")
!         (mem:DI (match_operand:SI 1 "register_operand" "r")))
!    (clobber (match_scratch:DI 2 "=f"))]
    "!TARGET_64BIT && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT"
!   "{fldds|fldd} 0(%1),%2\n\t{fstds|fstd} %2,-16(%%sp)\n\t{ldws|ldw} -16(%%sp),%0\n\t{ldws|ldw} -12(%%sp),%R0"
!   [(set_attr "type" "move")
!    (set_attr "length" "16")])
  
  ;; Implement atomic DImode store.
  
  (define_expand "atomic_storedi"
    [(match_operand:DI 0 "memory_operand")                ;; memory
!    (match_operand:DI 1 "reg_or_cint_move_operand")      ;; val out
     (match_operand:SI 2 "const_int_operand")]            ;; model
    ""
  {
*************** add,l %2,%3,%3\;bv,n %%r0(%3)"
*** 10076,10081 ****
--- 10075,10082 ----
  
    model = memmodel_from_int (INTVAL (operands[2]));
    operands[0] = force_reg (SImode, XEXP (operands[0], 0));
+   if (operands[1] != CONST0_RTX (DImode))
+     operands[1] = force_reg (DImode, operands[1]);
    expand_mem_thread_fence (model);
    emit_insn (gen_atomic_storedi_1 (operands[0], operands[1]));
    if (is_mm_seq_cst (model))
*************** add,l %2,%3,%3\;bv,n %%r0(%3)"
*** 10085,10171 ****
  
  (define_insn "atomic_storedi_1"
    [(set (mem:DI (match_operand:SI 0 "register_operand" "r,r"))
!         (match_operand:DI 1 "register_operand" "f,r"))
     (clobber (match_scratch:DI 2 "=X,f"))]
!   "!TARGET_64BIT && !TARGET_DISABLE_FPREGS
!    && !TARGET_SOFT_FLOAT && !TARGET_SYNC_LIBCALL"
    "@
!    {fstds|fstd} %1,0(%0)
     {stws|stw} %1,-16(%%sp)\n\t{stws|stw} %R1,-12(%%sp)\n\t{fldds|fldd} -16(%%sp),%2\n\t{fstds|fstd} %2,0(%0)"
    [(set_attr "type" "move,move")
     (set_attr "length" "4,16")])
  
! ;; Implement atomic DFmode load using 64-bit floating point load.
  
! (define_expand "atomic_loaddf"
!   [(match_operand:DF 0 "register_operand")              ;; val out
!    (match_operand:DF 1 "memory_operand")                ;; memory
!    (match_operand:SI 2 "const_int_operand")]            ;; model
    ""
  {
!   enum memmodel model;
! 
!   if (TARGET_64BIT || TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT)
!     FAIL;
! 
!   model = memmodel_from_int (INTVAL (operands[2]));
!   operands[1] = force_reg (SImode, XEXP (operands[1], 0));
!   expand_mem_thread_fence (model);
!   emit_insn (gen_atomic_loaddf_1 (operands[0], operands[1]));
!   if (is_mm_seq_cst (model))
!     expand_mem_thread_fence (model);
!   DONE;
  })
  
! (define_insn "atomic_loaddf_1"
!   [(set (match_operand:DF 0 "register_operand" "=f,r")
!         (mem:DF (match_operand:SI 1 "register_operand" "r,r")))
!    (clobber (match_scratch:DF 2 "=X,f"))]
!   "!TARGET_64BIT && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT"
!   "@
!    {fldds|fldd} 0(%1),%0
!    {fldds|fldd} 0(%1),%2\n\t{fstds|fstd} %2,-16(%%sp)\n\t{ldws|ldw} -16(%%sp),%0\n\t{ldws|ldw} -12(%%sp),%R0"
!   [(set_attr "type" "move,move")
!    (set_attr "length" "4,16")])
! 
! ;; Implement atomic DFmode store using 64-bit floating point store.
! 
! (define_expand "atomic_storedf"
!   [(match_operand:DF 0 "memory_operand")                ;; memory
!    (match_operand:DF 1 "register_operand")              ;; val out
!    (match_operand:SI 2 "const_int_operand")]            ;; model
    ""
! {
!   enum memmodel model;
! 
!   if (TARGET_SYNC_LIBCALL)
!     {
!       rtx mem = operands[0];
!       rtx val = operands[1];
!       if (pa_maybe_emit_compare_and_swap_exchange_loop (NULL_RTX, mem, val))
! 	DONE;
!     }
! 
!   if (TARGET_64BIT || TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT)
!     FAIL;
! 
!   model = memmodel_from_int (INTVAL (operands[2]));
!   operands[0] = force_reg (SImode, XEXP (operands[0], 0));
!   expand_mem_thread_fence (model);
!   emit_insn (gen_atomic_storedf_1 (operands[0], operands[1]));
!   if (is_mm_seq_cst (model))
!     expand_mem_thread_fence (model);
!   DONE;
! })
! 
! (define_insn "atomic_storedf_1"
!   [(set (mem:DF (match_operand:SI 0 "register_operand" "r,r"))
!         (match_operand:DF 1 "register_operand" "f,r"))
!    (clobber (match_scratch:DF 2 "=X,f"))]
!   "!TARGET_64BIT && !TARGET_DISABLE_FPREGS
!    && !TARGET_SOFT_FLOAT && !TARGET_SYNC_LIBCALL"
!   "@
!    {fstds|fstd} %1,0(%0)
!    {stws|stw} %1,-16(%%sp)\n\t{stws|stw} %R1,-12(%%sp)\n\t{fldds|fldd} -16(%%sp),%2\n\t{fstds|fstd} %2,0(%0)"
!   [(set_attr "type" "move,move")
!    (set_attr "length" "4,16")])
--- 10086,10118 ----
  
  (define_insn "atomic_storedi_1"
    [(set (mem:DI (match_operand:SI 0 "register_operand" "r,r"))
!         (match_operand:DI 1 "reg_or_0_operand" "M,r"))
     (clobber (match_scratch:DI 2 "=X,f"))]
!   "!TARGET_64BIT && !TARGET_DISABLE_FPREGS && !TARGET_SOFT_FLOAT"
    "@
!    {fstds|fstd} %%fr0,0(%0)
     {stws|stw} %1,-16(%%sp)\n\t{stws|stw} %R1,-12(%%sp)\n\t{fldds|fldd} -16(%%sp),%2\n\t{fstds|fstd} %2,0(%0)"
    [(set_attr "type" "move,move")
     (set_attr "length" "4,16")])
  
! ;; PA 2.0 hardware supports out-of-order execution of loads and stores, so
! ;; we need a memory barrier to enforce program order for memory references.
! ;; Since we want PA 1.x code to be PA 2.0 compatible, we also need the
! ;; barrier when generating PA 1.x code.
  
! (define_expand "memory_barrier"
!   [(set (match_dup 0)
!         (unspec:BLK [(match_dup 0)] UNSPEC_MEMORY_BARRIER))]
    ""
  {
!   operands[0] = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode));
!   MEM_VOLATILE_P (operands[0]) = 1;
  })
  
! (define_insn "*memory_barrier"
!   [(set (match_operand:BLK 0 "" "")
!         (unspec:BLK [(match_dup 0)] UNSPEC_MEMORY_BARRIER))]
    ""
!   "sync"
!   [(set_attr "type" "binary")
!    (set_attr "length" "4")])
diff -Nrcpad gcc-6.4.0/gcc/config/pa/pa.opt gcc-6.5.0/gcc/config/pa/pa.opt
*** gcc-6.4.0/gcc/config/pa/pa.opt	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/pa/pa.opt	Sun Mar 18 22:13:04 2018
*************** mbig-switch
*** 41,46 ****
--- 41,50 ----
  Target Ignore
  Does nothing.  Preserved for backward compatibility.
  
+ mcaller-copies
+ Target Report Mask(CALLER_COPIES)
+ Caller copies function arguments passed by hidden reference.
+ 
  mdisable-fpregs
  Target Report Mask(DISABLE_FPREGS)
  Disable FP regs.
diff -Nrcpad gcc-6.4.0/gcc/config/pa/pa32-linux.h gcc-6.5.0/gcc/config/pa/pa32-linux.h
*** gcc-6.4.0/gcc/config/pa/pa32-linux.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/pa/pa32-linux.h	Sun Jul 29 16:11:34 2018
*************** call_ ## FUNC (void)					\
*** 62,64 ****
--- 62,73 ----
  
  #undef  WCHAR_TYPE_SIZE
  #define WCHAR_TYPE_SIZE BITS_PER_WORD
+ 
+ /* Place jump tables in the text section except when generating non-PIC
+    code.  When generating non-PIC code, the relocations needed to load the
+    address of the jump table result in a text label in the final executable
+    if the jump table is placed in the text section.  This breaks the unwind
+    data for the function.  Thus, the jump table needs to be placed in
+    rodata when generating non-PIC code.  */
+ #undef JUMP_TABLES_IN_TEXT_SECTION
+ #define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
diff -Nrcpad gcc-6.4.0/gcc/config/pa/pa64-hpux.h gcc-6.5.0/gcc/config/pa/pa64-hpux.h
*** gcc-6.4.0/gcc/config/pa/pa64-hpux.h	Fri Apr  8 13:47:37 2016
--- gcc-6.5.0/gcc/config/pa/pa64-hpux.h	Sun Mar 11 14:33:56 2018
*************** do {								\
*** 247,254 ****
  
  /* We need to use the HP style for internal labels.  */
  #undef ASM_GENERATE_INTERNAL_LABEL
! #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)	\
!   sprintf (LABEL, "*%c$%s%04ld", (PREFIX)[0], (PREFIX) + 1, (long)(NUM))
  
  #else /* USING_ELFOS_H */
  
--- 247,264 ----
  
  /* We need to use the HP style for internal labels.  */
  #undef ASM_GENERATE_INTERNAL_LABEL
! #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)		\
!   do								\
!     {								\
!       char *__p;						\
!       (LABEL)[0] = '*';						\
!       (LABEL)[1] = (PREFIX)[0];					\
!       (LABEL)[2] = '$';						\
!       __p = stpcpy (&(LABEL)[3], &(PREFIX)[1]);			\
!       sprint_ul (__p, (unsigned long) (NUM));			\
!     }								\
!   while (0)
! 
  
  #else /* USING_ELFOS_H */
  
diff -Nrcpad gcc-6.4.0/gcc/config/pa/predicates.md gcc-6.5.0/gcc/config/pa/predicates.md
*** gcc-6.4.0/gcc/config/pa/predicates.md	Tue Apr  5 23:42:36 2016
--- gcc-6.5.0/gcc/config/pa/predicates.md	Sat Feb 10 20:04:59 2018
***************
*** 277,282 ****
--- 277,285 ----
      case HImode:
        return true;
  
+     case VOIDmode:
+       return false;
+ 
      default:
        return (INTVAL (op) % GET_MODE_SIZE (mode)) == 0;
      }
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/altivec.md gcc-6.5.0/gcc/config/rs6000/altivec.md
*** gcc-6.4.0/gcc/config/rs6000/altivec.md	Tue Jul 12 18:12:11 2016
--- gcc-6.5.0/gcc/config/rs6000/altivec.md	Sun Jan 14 17:49:39 2018
***************
*** 1714,1764 ****
    "vsum4s<VI_char>s %0,%1,%2"
    [(set_attr "type" "veccomplex")])
  
! ;; FIXME: For the following two patterns, the scratch should only be
! ;; allocated for !VECTOR_ELT_ORDER_BIG, and the instructions should
! ;; be emitted separately.
! (define_insn "altivec_vsum2sws"
!   [(set (match_operand:V4SI 0 "register_operand" "=v")
!         (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
!                       (match_operand:V4SI 2 "register_operand" "v")]
! 		     UNSPEC_VSUM2SWS))
!    (set (reg:SI 110) (unspec:SI [(const_int 0)] UNSPEC_SET_VSCR))
!    (clobber (match_scratch:V4SI 3 "=v"))]
    "TARGET_ALTIVEC"
  {
    if (VECTOR_ELT_ORDER_BIG)
!     return "vsum2sws %0,%1,%2";
    else
!     return "vsldoi %3,%2,%2,12\n\tvsum2sws %3,%1,%3\n\tvsldoi %0,%3,%3,4";
! }
!   [(set_attr "type" "veccomplex")
!    (set (attr "length")
!      (if_then_else
!        (match_test "VECTOR_ELT_ORDER_BIG")
!        (const_string "4")
!        (const_string "12")))])
  
! (define_insn "altivec_vsumsws"
    [(set (match_operand:V4SI 0 "register_operand" "=v")
          (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
!                       (match_operand:V4SI 2 "register_operand" "v")]
! 		     UNSPEC_VSUMSWS))
!    (set (reg:SI 110) (unspec:SI [(const_int 0)] UNSPEC_SET_VSCR))
!    (clobber (match_scratch:V4SI 3 "=v"))]
    "TARGET_ALTIVEC"
  {
    if (VECTOR_ELT_ORDER_BIG)
!     return "vsumsws %0,%1,%2";
    else
!     return "vspltw %3,%2,0\n\tvsumsws %3,%1,%3\n\tvsldoi %0,%3,%3,12";
! }
!   [(set_attr "type" "veccomplex")
!    (set (attr "length")
!      (if_then_else
!        (match_test "(VECTOR_ELT_ORDER_BIG)")
!        (const_string "4")
!        (const_string "12")))])
  
  (define_insn "altivec_vsumsws_direct"
    [(set (match_operand:V4SI 0 "register_operand" "=v")
          (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
--- 1714,1774 ----
    "vsum4s<VI_char>s %0,%1,%2"
    [(set_attr "type" "veccomplex")])
  
! (define_expand "altivec_vsum2sws"
!   [(use (match_operand:V4SI 0 "register_operand"))
!    (use (match_operand:V4SI 1 "register_operand"))
!    (use (match_operand:V4SI 2 "register_operand"))]
    "TARGET_ALTIVEC"
  {
    if (VECTOR_ELT_ORDER_BIG)
!     emit_insn (gen_altivec_vsum2sws_direct (operands[0], operands[1],
!                                             operands[2]));
    else
!     {
!       rtx tmp1 = gen_reg_rtx (V4SImode);
!       rtx tmp2 = gen_reg_rtx (V4SImode);
!       emit_insn (gen_altivec_vsldoi_v4si (tmp1, operands[2],
!                                           operands[2], GEN_INT (12)));
!       emit_insn (gen_altivec_vsum2sws_direct (tmp2, operands[1], tmp1));
!       emit_insn (gen_altivec_vsldoi_v4si (operands[0], tmp2, tmp2,
!                                           GEN_INT (4)));
!     }
!   DONE;
! })
  
! ; FIXME: This can probably be expressed without an UNSPEC.
! (define_insn "altivec_vsum2sws_direct"
    [(set (match_operand:V4SI 0 "register_operand" "=v")
          (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
! 	              (match_operand:V4SI 2 "register_operand" "v")]
! 		     UNSPEC_VSUM2SWS))
!    (set (reg:SI VSCR_REGNO) (unspec:SI [(const_int 0)] UNSPEC_SET_VSCR))]
!   "TARGET_ALTIVEC"
!   "vsum2sws %0,%1,%2"
!   [(set_attr "type" "veccomplex")])
! 
! (define_expand "altivec_vsumsws"
!   [(use (match_operand:V4SI 0 "register_operand"))
!    (use (match_operand:V4SI 1 "register_operand"))
!    (use (match_operand:V4SI 2 "register_operand"))]
    "TARGET_ALTIVEC"
  {
    if (VECTOR_ELT_ORDER_BIG)
!     emit_insn (gen_altivec_vsumsws_direct (operands[0], operands[1],
!                                            operands[2]));
    else
!     {
!       rtx tmp1 = gen_reg_rtx (V4SImode);
!       rtx tmp2 = gen_reg_rtx (V4SImode);
!       emit_insn (gen_altivec_vspltw_direct (tmp1, operands[2], const0_rtx));
!       emit_insn (gen_altivec_vsumsws_direct (tmp2, operands[1], tmp1));
!       emit_insn (gen_altivec_vsldoi_v4si (operands[0], tmp2, tmp2,
!                                           GEN_INT (12)));
!     }
!   DONE;
! })
  
+ ; FIXME: This can probably be expressed without an UNSPEC.
  (define_insn "altivec_vsumsws_direct"
    [(set (match_operand:V4SI 0 "register_operand" "=v")
          (unspec:V4SI [(match_operand:V4SI 1 "register_operand" "v")
***************
*** 2072,2078 ****
  		   UNSPEC_VPERMR))]
    "TARGET_P9_VECTOR"
    "@
!    vpermr %0,%2,%1,%3
     xxpermr %x0,%x1,%x3"
    [(set_attr "type" "vecperm")
     (set_attr "length" "4")])
--- 2082,2088 ----
  		   UNSPEC_VPERMR))]
    "TARGET_P9_VECTOR"
    "@
!    vpermr %0,%1,%2,%3
     xxpermr %x0,%x1,%x3"
    [(set_attr "type" "vecperm")
     (set_attr "length" "4")])
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/power6.md gcc-6.5.0/gcc/config/rs6000/power6.md
*** gcc-6.4.0/gcc/config/rs6000/power6.md	Wed Jul  6 02:31:08 2016
--- gcc-6.5.0/gcc/config/rs6000/power6.md	Fri Jul 14 16:58:00 2017
***************
*** 108,114 ****
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-load-ext" 4 ; fx
    (and (eq_attr "type" "load")
--- 108,114 ----
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-load-ext" 4 ; fx
    (and (eq_attr "type" "load")
***************
*** 128,134 ****
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-load-update" 2 ; fx
    (and (eq_attr "type" "load")
--- 128,134 ----
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-load-update" 2 ; fx
    (and (eq_attr "type" "load")
***************
*** 276,282 ****
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-cntlz" 2
    (and (eq_attr "type" "cntlz")
--- 276,282 ----
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-cntlz" 2
    (and (eq_attr "type" "cntlz")
***************
*** 289,295 ****
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-var-rotate" 4
    (and (eq_attr "type" "shift")
--- 289,295 ----
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-var-rotate" 4
    (and (eq_attr "type" "shift")
***************
*** 355,361 ****
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-delayed-compare" 2 ; N/A
    (and (eq_attr "type" "shift")
--- 355,361 ----
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-delayed-compare" 2 ; N/A
    (and (eq_attr "type" "shift")
***************
*** 420,426 ****
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-idiv" 44
    (and (eq_attr "type" "div")
--- 420,426 ----
                    power6-store-update-indexed,\
                    power6-fpstore,\
                    power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-idiv" 44
    (and (eq_attr "type" "div")
***************
*** 436,442 ****
  ;                  power6-store-update-indexed,\
  ;                  power6-fpstore,\
  ;                  power6-fpstore-update"
! ;  "store_data_bypass_p")
  
  (define_insn_reservation "power6-ldiv" 56
    (and (eq_attr "type" "div")
--- 436,442 ----
  ;                  power6-store-update-indexed,\
  ;                  power6-fpstore,\
  ;                  power6-fpstore-update"
! ;  "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-ldiv" 56
    (and (eq_attr "type" "div")
***************
*** 452,458 ****
  ;                  power6-store-update-indexed,\
  ;                  power6-fpstore,\
  ;                  power6-fpstore-update"
! ;  "store_data_bypass_p")
  
  (define_insn_reservation "power6-mtjmpr" 2
    (and (eq_attr "type" "mtjmpr,mfjmpr")
--- 452,458 ----
  ;                  power6-store-update-indexed,\
  ;                  power6-fpstore,\
  ;                  power6-fpstore-update"
! ;  "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-mtjmpr" 2
    (and (eq_attr "type" "mtjmpr,mfjmpr")
***************
*** 510,516 ****
  
  (define_bypass 1 "power6-fp"
                   "power6-fpstore,power6-fpstore-update"
!   "store_data_bypass_p")
  
  (define_insn_reservation "power6-fpcompare" 8
    (and (eq_attr "type" "fpcompare")
--- 510,516 ----
  
  (define_bypass 1 "power6-fp"
                   "power6-fpstore,power6-fpstore-update"
!   "rs6000_store_data_bypass_p")
  
  (define_insn_reservation "power6-fpcompare" 8
    (and (eq_attr "type" "fpcompare")
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/ppc-asm.h gcc-6.5.0/gcc/config/rs6000/ppc-asm.h
*** gcc-6.4.0/gcc/config/rs6000/ppc-asm.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/rs6000/ppc-asm.h	Tue Nov 21 19:03:10 2017
*************** see the files COPYING3 and COPYING.RUNTI
*** 120,126 ****
  #define f47	47
  #define f48	48
  #define f49	49
! #define f50	30
  #define f51	51
  #define f52	52
  #define f53	53
--- 120,126 ----
  #define f47	47
  #define f48	48
  #define f49	49
! #define f50	50
  #define f51	51
  #define f52	52
  #define f53	53
*************** see the files COPYING3 and COPYING.RUNTI
*** 222,228 ****
  #define vs47	47
  #define vs48	48
  #define vs49	49
! #define vs50	30
  #define vs51	51
  #define vs52	52
  #define vs53	53
--- 222,228 ----
  #define vs47	47
  #define vs48	48
  #define vs49	49
! #define vs50	50
  #define vs51	51
  #define vs52	52
  #define vs53	53
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/ppc-auxv.h gcc-6.5.0/gcc/config/rs6000/ppc-auxv.h
*** gcc-6.4.0/gcc/config/rs6000/ppc-auxv.h	Wed Jan 20 20:30:24 2016
--- gcc-6.5.0/gcc/config/rs6000/ppc-auxv.h	Fri Dec 15 03:44:16 2017
***************
*** 89,94 ****
--- 89,97 ----
  #define PPC_FEATURE2_HTM_NOSC       0x01000000
  #define PPC_FEATURE2_ARCH_3_00      0x00800000
  #define PPC_FEATURE2_HAS_IEEE128    0x00400000
+ #define PPC_FEATURE2_DARN           0x00200000
+ #define PPC_FEATURE2_SCV            0x00100000
+ #define PPC_FEATURE2_HTM_NO_SUSPEND 0x00080000
  
  
  /* Thread Control Block (TCB) offsets of the AT_PLATFORM, AT_HWCAP and
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/rs6000-builtin.def gcc-6.5.0/gcc/config/rs6000/rs6000-builtin.def
*** gcc-6.4.0/gcc/config/rs6000/rs6000-builtin.def	Fri Jul  8 18:06:16 2016
--- gcc-6.5.0/gcc/config/rs6000/rs6000-builtin.def	Mon Apr  2 23:54:20 2018
***************
*** 1,5 ****
  /* Builtin functions for rs6000/powerpc.
!    Copyright (C) 2009-2016 Free Software Foundation, Inc.
     Contributed by Michael Meissner (meissner@linux.vnet.ibm.com)
  
     This file is part of GCC.
--- 1,5 ----
  /* Builtin functions for rs6000/powerpc.
!    Copyright (C) 2009-2018 Free Software Foundation, Inc.
     Contributed by Michael Meissner (meissner@linux.vnet.ibm.com)
  
     This file is part of GCC.
***************
*** 630,635 ****
--- 630,643 ----
  		     | RS6000_BTC_BINARY),				\
  		    CODE_FOR_ ## ICODE)			/* ICODE */
  
+ #define BU_P7_POWERPC64_MISC_2(ENUM, NAME, ATTR, ICODE)			\
+   RS6000_BUILTIN_2 (MISC_BUILTIN_ ## ENUM,		/* ENUM */      \
+ 		    "__builtin_" NAME,			/* NAME */      \
+ 		    RS6000_BTM_POPCNTD			/* MASK */	\
+ 		    | RS6000_BTM_POWERPC64,				\
+ 		    (RS6000_BTC_ ## ATTR		/* ATTR */      \
+ 		    | RS6000_BTC_BINARY),				\
+ 		    CODE_FOR_ ## ICODE)			/* ICODE */
  
  /* Miscellaneous builtins for instructions added in ISA 2.07.  These
     instructions do require the ISA 2.07 vector support, but they aren't vector
*************** BU_P9V_OVERLOAD_2 (VADUW,	"vaduw")
*** 1801,1813 ****
  
  /* 2 argument extended divide functions added in ISA 2.06.  */
  BU_P7_MISC_2 (DIVWE,		"divwe",	CONST,	dive_si)
- BU_P7_MISC_2 (DIVWEO,		"divweo",	CONST,	diveo_si)
  BU_P7_MISC_2 (DIVWEU,		"divweu",	CONST,	diveu_si)
! BU_P7_MISC_2 (DIVWEUO,		"divweuo",	CONST,	diveuo_si)
! BU_P7_MISC_2 (DIVDE,		"divde",	CONST,	dive_di)
! BU_P7_MISC_2 (DIVDEO,		"divdeo",	CONST,	diveo_di)
! BU_P7_MISC_2 (DIVDEU,		"divdeu",	CONST,	diveu_di)
! BU_P7_MISC_2 (DIVDEUO,		"divdeuo",	CONST,	diveuo_di)
  
  /* 1 argument DFP (decimal floating point) functions added in ISA 2.05.  */
  BU_DFP_MISC_1 (DXEX,		"dxex",		CONST,	dfp_dxex_dd)
--- 1809,1817 ----
  
  /* 2 argument extended divide functions added in ISA 2.06.  */
  BU_P7_MISC_2 (DIVWE,		"divwe",	CONST,	dive_si)
  BU_P7_MISC_2 (DIVWEU,		"divweu",	CONST,	diveu_si)
! BU_P7_POWERPC64_MISC_2 (DIVDE,	"divde",	CONST,	dive_di)
! BU_P7_POWERPC64_MISC_2 (DIVDEU,	"divdeu",	CONST,	diveu_di)
  
  /* 1 argument DFP (decimal floating point) functions added in ISA 2.05.  */
  BU_DFP_MISC_1 (DXEX,		"dxex",		CONST,	dfp_dxex_dd)
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/rs6000-c.c gcc-6.5.0/gcc/config/rs6000/rs6000-c.c
*** gcc-6.4.0/gcc/config/rs6000/rs6000-c.c	Wed Mar  1 21:18:18 2017
--- gcc-6.5.0/gcc/config/rs6000/rs6000-c.c	Tue Jun 26 17:24:54 2018
*************** rs6000_cpu_cpp_builtins (cpp_reader *pfi
*** 428,433 ****
--- 428,436 ----
      builtin_define ("__FLOAT128__");
    if (TARGET_FLOAT128_HW)
      builtin_define ("__FLOAT128_HARDWARE__");
+ #ifdef TARGET_LIBC_PROVIDES_HWCAP_IN_TCB
+   builtin_define ("__BUILTIN_CPU_SUPPORTS__");
+ #endif
  
    if (TARGET_EXTRA_BUILTINS && cpp_get_options (pfile)->lang != CLK_ASM)
      {
*************** const struct altivec_builtin_types altiv
*** 2155,2161 ****
      RS6000_BTI_unsigned_V8HI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
    { ALTIVEC_BUILTIN_VEC_PACKSU, P8V_BUILTIN_VPKSDUS,
      RS6000_BTI_unsigned_V4SI, RS6000_BTI_V2DI, RS6000_BTI_V2DI, 0 },
!   { ALTIVEC_BUILTIN_VEC_PACKSU, P8V_BUILTIN_VPKSDUS,
      RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V2DI, RS6000_BTI_unsigned_V2DI, 0 },
    { ALTIVEC_BUILTIN_VEC_VPKSWUS, ALTIVEC_BUILTIN_VPKSWUS,
      RS6000_BTI_unsigned_V8HI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
--- 2158,2164 ----
      RS6000_BTI_unsigned_V8HI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
    { ALTIVEC_BUILTIN_VEC_PACKSU, P8V_BUILTIN_VPKSDUS,
      RS6000_BTI_unsigned_V4SI, RS6000_BTI_V2DI, RS6000_BTI_V2DI, 0 },
!   { ALTIVEC_BUILTIN_VEC_PACKSU, P8V_BUILTIN_VPKUDUS,
      RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V2DI, RS6000_BTI_unsigned_V2DI, 0 },
    { ALTIVEC_BUILTIN_VEC_VPKSWUS, ALTIVEC_BUILTIN_VPKSWUS,
      RS6000_BTI_unsigned_V8HI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
*************** assignment for unaligned loads and store
*** 4916,4921 ****
--- 4919,4933 ----
        stmt = build_binary_op (loc, PLUS_EXPR, stmt, arg2, 1);
        stmt = build_indirect_ref (loc, stmt, RO_NULL);
  
+       /* PR83660: We mark this as having side effects so that
+ 	 downstream in fold_build_cleanup_point_expr () it will get a
+ 	 CLEANUP_POINT_EXPR.  If it does not we can run into an ICE
+ 	 later in gimplify_cleanup_point_expr ().  Potentially this
+ 	 causes missed optimization because the actually is no side
+ 	 effect.  */
+       if (c_dialect_cxx ())
+ 	TREE_SIDE_EFFECTS (stmt) = 1;
+ 
        return stmt;
      }
  
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/rs6000-protos.h gcc-6.5.0/gcc/config/rs6000/rs6000-protos.h
*** gcc-6.4.0/gcc/config/rs6000/rs6000-protos.h	Tue Aug  9 05:43:29 2016
--- gcc-6.5.0/gcc/config/rs6000/rs6000-protos.h	Tue Jan 23 15:07:00 2018
*************** extern bool rs6000_emit_set_const (rtx,
*** 136,142 ****
  extern int rs6000_emit_cmove (rtx, rtx, rtx, rtx);
  extern int rs6000_emit_vector_cond_expr (rtx, rtx, rtx, rtx, rtx, rtx);
  extern void rs6000_emit_minmax (rtx, enum rtx_code, rtx, rtx);
- extern void rs6000_split_signbit (rtx, rtx);
  extern void rs6000_expand_atomic_compare_and_swap (rtx op[]);
  extern void rs6000_expand_atomic_exchange (rtx op[]);
  extern void rs6000_expand_atomic_op (enum rtx_code, rtx, rtx, rtx, rtx, rtx);
--- 136,141 ----
*************** extern void rs6000_sibcall_aix (rtx, rtx
*** 216,221 ****
--- 215,221 ----
  extern void rs6000_aix_asm_output_dwarf_table_ref (char *);
  extern void get_ppc476_thunk_name (char name[32]);
  extern bool rs6000_overloaded_builtin_p (enum rs6000_builtins);
+ extern int rs6000_store_data_bypass_p (rtx_insn *, rtx_insn *);
  extern HOST_WIDE_INT rs6000_builtin_mask_calculate (void);
  extern void rs6000_asm_output_dwarf_pcrel (FILE *file, int size,
  					   const char *label);
*************** extern void rs6000_cpu_cpp_builtins (str
*** 229,234 ****
--- 229,235 ----
  #ifdef TREE_CODE
  extern bool rs6000_pragma_target_parse (tree, tree);
  #endif
+ extern void rs6000_activate_target_options (tree new_tree);
  extern void rs6000_target_modify_macros (bool, HOST_WIDE_INT, HOST_WIDE_INT);
  extern void (*rs6000_target_modify_macros_ptr) (bool, HOST_WIDE_INT,
  						HOST_WIDE_INT);
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/rs6000.c gcc-6.5.0/gcc/config/rs6000/rs6000.c
*** gcc-6.4.0/gcc/config/rs6000/rs6000.c	Tue Jun 27 17:11:01 2017
--- gcc-6.5.0/gcc/config/rs6000/rs6000.c	Fri Aug 10 20:46:04 2018
***************
*** 1,5 ****
  /* Subroutines used for code generation on IBM RS/6000.
!    Copyright (C) 1991-2016 Free Software Foundation, Inc.
     Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
  
     This file is part of GCC.
--- 1,5 ----
  /* Subroutines used for code generation on IBM RS/6000.
!    Copyright (C) 1991-2018 Free Software Foundation, Inc.
     Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
  
     This file is part of GCC.
*************** static const struct
*** 361,371 ****
    { "ebb",		PPC_FEATURE2_HAS_EBB,		1 },
    { "htm",		PPC_FEATURE2_HAS_HTM,		1 },
    { "htm-nosc",		PPC_FEATURE2_HTM_NOSC,		1 },
    { "isel",		PPC_FEATURE2_HAS_ISEL,		1 },
    { "tar",		PPC_FEATURE2_HAS_TAR,		1 },
    { "vcrypto",		PPC_FEATURE2_HAS_VEC_CRYPTO,	1 },
    { "arch_3_00",	PPC_FEATURE2_ARCH_3_00,		1 },
!   { "ieee128",		PPC_FEATURE2_HAS_IEEE128,	1 }
  };
  
  /* Newer LIBCs explicitly export this symbol to declare that they provide
--- 361,374 ----
    { "ebb",		PPC_FEATURE2_HAS_EBB,		1 },
    { "htm",		PPC_FEATURE2_HAS_HTM,		1 },
    { "htm-nosc",		PPC_FEATURE2_HTM_NOSC,		1 },
+   { "htm-no-suspend",	PPC_FEATURE2_HTM_NO_SUSPEND,	1 },
    { "isel",		PPC_FEATURE2_HAS_ISEL,		1 },
    { "tar",		PPC_FEATURE2_HAS_TAR,		1 },
    { "vcrypto",		PPC_FEATURE2_HAS_VEC_CRYPTO,	1 },
    { "arch_3_00",	PPC_FEATURE2_ARCH_3_00,		1 },
!   { "ieee128",		PPC_FEATURE2_HAS_IEEE128,	1 },
!   { "darn",		PPC_FEATURE2_DARN,		1 },
!   { "scv",		PPC_FEATURE2_SCV,		1 }
  };
  
  /* Newer LIBCs explicitly export this symbol to declare that they provide
*************** mode_supports_pre_modify_p (machine_mode
*** 494,499 ****
--- 497,587 ----
  	  != 0);
  }
  
+ /* Given that there exists at least one variable that is set (produced)
+    by OUT_INSN and read (consumed) by IN_INSN, return true iff
+    IN_INSN represents one or more memory store operations and none of
+    the variables set by OUT_INSN is used by IN_INSN as the address of a
+    store operation.  If either IN_INSN or OUT_INSN does not represent
+    a "single" RTL SET expression (as loosely defined by the
+    implementation of the single_set function) or a PARALLEL with only
+    SETs, CLOBBERs, and USEs inside, this function returns false.
+ 
+    This rs6000-specific version of store_data_bypass_p checks for
+    certain conditions that result in assertion failures (and internal
+    compiler errors) in the generic store_data_bypass_p function and
+    returns false rather than calling store_data_bypass_p if one of the
+    problematic conditions is detected.  */
+ 
+ int
+ rs6000_store_data_bypass_p (rtx_insn *out_insn, rtx_insn *in_insn)
+ {
+   rtx out_set, in_set;
+   rtx out_pat, in_pat;
+   rtx out_exp, in_exp;
+   int i, j;
+ 
+   in_set = single_set (in_insn);
+   if (in_set)
+     {
+       if (MEM_P (SET_DEST (in_set)))
+ 	{
+ 	  out_set = single_set (out_insn);
+ 	  if (!out_set)
+ 	    {
+ 	      out_pat = PATTERN (out_insn);
+ 	      if (GET_CODE (out_pat) == PARALLEL)
+ 		{
+ 		  for (i = 0; i < XVECLEN (out_pat, 0); i++)
+ 		    {
+ 		      out_exp = XVECEXP (out_pat, 0, i);
+ 		      if ((GET_CODE (out_exp) == CLOBBER)
+ 			  || (GET_CODE (out_exp) == USE))
+ 			continue;
+ 		      else if (GET_CODE (out_exp) != SET)
+ 			return false;
+ 		    }
+ 		}
+ 	    }
+ 	}
+     }
+   else
+     {
+       in_pat = PATTERN (in_insn);
+       if (GET_CODE (in_pat) != PARALLEL)
+ 	return false;
+ 
+       for (i = 0; i < XVECLEN (in_pat, 0); i++)
+ 	{
+ 	  in_exp = XVECEXP (in_pat, 0, i);
+ 	  if ((GET_CODE (in_exp) == CLOBBER) || (GET_CODE (in_exp) == USE))
+ 	    continue;
+ 	  else if (GET_CODE (in_exp) != SET)
+ 	    return false;
+ 
+ 	  if (MEM_P (SET_DEST (in_exp)))
+ 	    {
+ 	      out_set = single_set (out_insn);
+ 	      if (!out_set)
+ 		{
+ 		  out_pat = PATTERN (out_insn);
+ 		  if (GET_CODE (out_pat) != PARALLEL)
+ 		    return false;
+ 		  for (j = 0; j < XVECLEN (out_pat, 0); j++)
+ 		    {
+ 		      out_exp = XVECEXP (out_pat, 0, j);
+ 		      if ((GET_CODE (out_exp) == CLOBBER)
+ 			  || (GET_CODE (out_exp) == USE))
+ 			continue;
+ 		      else if (GET_CODE (out_exp) != SET)
+ 			return false;
+ 		    }
+ 		}
+ 	    }
+ 	}
+     }
+   return store_data_bypass_p (out_insn, in_insn);
+ }
+ 
  /* Return true if we have D-form addressing in altivec registers.  */
  static inline bool
  mode_supports_vmx_dform (machine_mode mode)
*************** rs6000_builtin_mask_calculate (void)
*** 3686,3691 ****
--- 3774,3780 ----
  	  | ((TARGET_P9_MISC)		    ? RS6000_BTM_P9_MISC   : 0)
  	  | ((TARGET_MODULO)		    ? RS6000_BTM_MODULO    : 0)
  	  | ((TARGET_64BIT)		    ? RS6000_BTM_64BIT     : 0)
+ 	  | ((TARGET_POWERPC64)		    ? RS6000_BTM_POWERPC64 : 0)
  	  | ((TARGET_CRYPTO)		    ? RS6000_BTM_CRYPTO	   : 0)
  	  | ((TARGET_HTM)		    ? RS6000_BTM_HTM	   : 0)
  	  | ((TARGET_DFP)		    ? RS6000_BTM_DFP	   : 0)
*************** static bool
*** 3717,3729 ****
  rs6000_option_override_internal (bool global_init_p)
  {
    bool ret = true;
-   bool have_cpu = false;
- 
-   /* The default cpu requested at configure time, if any.  */
-   const char *implicit_cpu = OPTION_TARGET_CPU_DEFAULT;
- 
    HOST_WIDE_INT set_masks;
!   int cpu_index;
    int tune_index;
    struct cl_target_option *main_target_opt
      = ((global_init_p || target_option_default_node == NULL)
--- 3806,3813 ----
  rs6000_option_override_internal (bool global_init_p)
  {
    bool ret = true;
    HOST_WIDE_INT set_masks;
!   int cpu_index = -1;
    int tune_index;
    struct cl_target_option *main_target_opt
      = ((global_init_p || target_option_default_node == NULL)
*************** rs6000_option_override_internal (bool gl
*** 3800,3841 ****
       with -mtune on the command line.  Process a '--with-cpu' configuration
       request as an implicit --cpu.  */
    if (rs6000_cpu_index >= 0)
!     {
!       cpu_index = rs6000_cpu_index;
!       have_cpu = true;
!     }
    else if (main_target_opt != NULL && main_target_opt->x_rs6000_cpu_index >= 0)
!     {
!       rs6000_cpu_index = cpu_index = main_target_opt->x_rs6000_cpu_index;
!       have_cpu = true;
!     }
!   else if (implicit_cpu)
!     {
!       rs6000_cpu_index = cpu_index = rs6000_cpu_name_lookup (implicit_cpu);
!       have_cpu = true;
!     }
!   else
!     {
!       /* PowerPC 64-bit LE requires at least ISA 2.07.  */
!       const char *default_cpu = ((!TARGET_POWERPC64)
! 				 ? "powerpc"
! 				 : ((BYTES_BIG_ENDIAN)
! 				    ? "powerpc64"
! 				    : "powerpc64le"));
! 
!       rs6000_cpu_index = cpu_index = rs6000_cpu_name_lookup (default_cpu);
!       have_cpu = false;
!     }
! 
!   gcc_assert (cpu_index >= 0);
  
    /* If we have a cpu, either through an explicit -mcpu=<xxx> or if the
       compiler was configured with --with-cpu=<xxx>, replace all of the ISA bits
       with those from the cpu, except for options that were explicitly set.  If
       we don't have a cpu, do not override the target bits set in
       TARGET_DEFAULT.  */
!   if (have_cpu)
      {
        rs6000_isa_flags &= ~set_masks;
        rs6000_isa_flags |= (processor_target_table[cpu_index].target_enable
  			   & set_masks);
--- 3884,3903 ----
       with -mtune on the command line.  Process a '--with-cpu' configuration
       request as an implicit --cpu.  */
    if (rs6000_cpu_index >= 0)
!     cpu_index = rs6000_cpu_index;
    else if (main_target_opt != NULL && main_target_opt->x_rs6000_cpu_index >= 0)
!     cpu_index = main_target_opt->x_rs6000_cpu_index;
!   else if (OPTION_TARGET_CPU_DEFAULT)
!     cpu_index = rs6000_cpu_name_lookup (OPTION_TARGET_CPU_DEFAULT);
  
    /* If we have a cpu, either through an explicit -mcpu=<xxx> or if the
       compiler was configured with --with-cpu=<xxx>, replace all of the ISA bits
       with those from the cpu, except for options that were explicitly set.  If
       we don't have a cpu, do not override the target bits set in
       TARGET_DEFAULT.  */
!   if (cpu_index >= 0)
      {
+       rs6000_cpu_index = cpu_index;
        rs6000_isa_flags &= ~set_masks;
        rs6000_isa_flags |= (processor_target_table[cpu_index].target_enable
  			   & set_masks);
*************** rs6000_option_override_internal (bool gl
*** 3849,3862 ****
  
  	 If there is a TARGET_DEFAULT, use that.  Otherwise fall back to using
  	 -mcpu=powerpc, -mcpu=powerpc64, or -mcpu=powerpc64le defaults.  */
!       HOST_WIDE_INT flags = ((TARGET_DEFAULT) ? TARGET_DEFAULT
! 			     : processor_target_table[cpu_index].target_enable);
        rs6000_isa_flags |= (flags & ~rs6000_isa_flags_explicit);
      }
  
    if (rs6000_tune_index >= 0)
      tune_index = rs6000_tune_index;
!   else if (have_cpu)
      rs6000_tune_index = tune_index = cpu_index;
    else
      {
--- 3911,3936 ----
  
  	 If there is a TARGET_DEFAULT, use that.  Otherwise fall back to using
  	 -mcpu=powerpc, -mcpu=powerpc64, or -mcpu=powerpc64le defaults.  */
!       HOST_WIDE_INT flags;
!       if (TARGET_DEFAULT)
! 	flags = TARGET_DEFAULT;
!       else
! 	{
! 	  /* PowerPC 64-bit LE requires at least ISA 2.07.  */
! 	  const char *default_cpu = (!TARGET_POWERPC64
! 				     ? "powerpc"
! 				     : (BYTES_BIG_ENDIAN
! 					? "powerpc64"
! 					: "powerpc64le"));
! 	  int default_cpu_index = rs6000_cpu_name_lookup (default_cpu);
! 	  flags = processor_target_table[default_cpu_index].target_enable;
! 	}
        rs6000_isa_flags |= (flags & ~rs6000_isa_flags_explicit);
      }
  
    if (rs6000_tune_index >= 0)
      tune_index = rs6000_tune_index;
!   else if (cpu_index >= 0)
      rs6000_tune_index = tune_index = cpu_index;
    else
      {
*************** rs6000_option_override_internal (bool gl
*** 3868,3874 ****
        for (i = 0; i < ARRAY_SIZE (processor_target_table); i++)
  	if (processor_target_table[i].processor == tune_proc)
  	  {
! 	    rs6000_tune_index = tune_index = i;
  	    break;
  	  }
      }
--- 3942,3948 ----
        for (i = 0; i < ARRAY_SIZE (processor_target_table); i++)
  	if (processor_target_table[i].processor == tune_proc)
  	  {
! 	    tune_index = i;
  	    break;
  	  }
      }
*************** rs6000_option_override_internal (bool gl
*** 4075,4083 ****
  
    if (TARGET_P8_VECTOR && !TARGET_VSX)
      {
!       if (rs6000_isa_flags_explicit & OPTION_MASK_P8_VECTOR)
  	error ("-mpower8-vector requires -mvsx");
!       rs6000_isa_flags &= ~OPTION_MASK_P8_VECTOR;
      }
  
    if (TARGET_VSX_TIMODE && !TARGET_VSX)
--- 4149,4170 ----
  
    if (TARGET_P8_VECTOR && !TARGET_VSX)
      {
!       if ((rs6000_isa_flags_explicit & OPTION_MASK_P8_VECTOR)
! 	  && (rs6000_isa_flags_explicit & OPTION_MASK_VSX))
  	error ("-mpower8-vector requires -mvsx");
!       else if ((rs6000_isa_flags_explicit & OPTION_MASK_P8_VECTOR) == 0)
! 	{
! 	  rs6000_isa_flags &= ~OPTION_MASK_P8_VECTOR;
! 	  if (rs6000_isa_flags_explicit & OPTION_MASK_VSX)
! 	    rs6000_isa_flags_explicit |= OPTION_MASK_P8_VECTOR;
! 	}
!       else
! 	{
! 	  /* OPTION_MASK_P8_VECTOR is explicit, and OPTION_MASK_VSX is
! 	     not explicit.  */
! 	  rs6000_isa_flags |= OPTION_MASK_VSX;
! 	  rs6000_isa_flags_explicit |= OPTION_MASK_VSX;
! 	}
      }
  
    if (TARGET_VSX_TIMODE && !TARGET_VSX)
*************** rs6000_option_override_internal (bool gl
*** 4258,4266 ****
  	 error messages.  However, if users have managed to select
  	 power9-vector without selecting power8-vector, they
  	 already know about undocumented flags.  */
!       if (rs6000_isa_flags_explicit & OPTION_MASK_P8_VECTOR)
  	error ("-mpower9-vector requires -mpower8-vector");
!       rs6000_isa_flags &= ~OPTION_MASK_P9_VECTOR;
      }
  
    /* -mpower9-dform turns on both -mpower9-dform-scalar and
--- 4345,4366 ----
  	 error messages.  However, if users have managed to select
  	 power9-vector without selecting power8-vector, they
  	 already know about undocumented flags.  */
!       if ((rs6000_isa_flags_explicit & OPTION_MASK_P9_VECTOR) &&
! 	  (rs6000_isa_flags_explicit & OPTION_MASK_P8_VECTOR))
  	error ("-mpower9-vector requires -mpower8-vector");
!       else if ((rs6000_isa_flags_explicit & OPTION_MASK_P9_VECTOR) == 0)
! 	{
! 	  rs6000_isa_flags &= ~OPTION_MASK_P9_VECTOR;
! 	  if (rs6000_isa_flags_explicit & OPTION_MASK_P8_VECTOR)
! 	    rs6000_isa_flags_explicit |= OPTION_MASK_P9_VECTOR;
! 	}
!       else
! 	{
! 	  /* OPTION_MASK_P9_VECTOR is explicit and
! 	     OPTION_MASK_P8_VECTOR is not explicit.  */
! 	  rs6000_isa_flags |= OPTION_MASK_P8_VECTOR;
! 	  rs6000_isa_flags_explicit |= OPTION_MASK_P8_VECTOR;
! 	}
      }
  
    /* -mpower9-dform turns on both -mpower9-dform-scalar and
*************** rs6000_option_override_internal (bool gl
*** 4289,4298 ****
  	 error messages.  However, if users have managed to select
  	 power9-dform without selecting power9-vector, they
  	 already know about undocumented flags.  */
!       if (rs6000_isa_flags_explicit & OPTION_MASK_P9_VECTOR)
  	error ("-mpower9-dform requires -mpower9-vector");
!       rs6000_isa_flags &= ~(OPTION_MASK_P9_DFORM_SCALAR
! 			    | OPTION_MASK_P9_DFORM_VECTOR);
      }
  
    if (TARGET_P9_DFORM_SCALAR && !TARGET_UPPER_REGS_DF)
--- 4389,4440 ----
  	 error messages.  However, if users have managed to select
  	 power9-dform without selecting power9-vector, they
  	 already know about undocumented flags.  */
!       if ((rs6000_isa_flags_explicit & OPTION_MASK_P9_VECTOR)
! 	  && (rs6000_isa_flags_explicit & (OPTION_MASK_P9_DFORM_SCALAR
! 					   | OPTION_MASK_P9_DFORM_VECTOR)))
  	error ("-mpower9-dform requires -mpower9-vector");
!       else if (rs6000_isa_flags_explicit & OPTION_MASK_P9_VECTOR)
! 	{
! 	  rs6000_isa_flags &=
! 	    ~(OPTION_MASK_P9_DFORM_SCALAR | OPTION_MASK_P9_DFORM_VECTOR);
! 	  rs6000_isa_flags_explicit |=
! 	    (OPTION_MASK_P9_DFORM_SCALAR | OPTION_MASK_P9_DFORM_VECTOR);
! 	}
!       else
! 	{
! 	  /* We know that OPTION_MASK_P9_VECTOR is not explicit and
! 	     OPTION_MASK_P9_DFORM_SCALAR or OPTION_MASK_P9_DORM_VECTOR
! 	     may be explicit.  */
! 	  rs6000_isa_flags |= OPTION_MASK_P9_VECTOR;
! 	  rs6000_isa_flags_explicit |= OPTION_MASK_P9_VECTOR;
! 	}
!     }
! 
!   if ((TARGET_P9_DFORM_SCALAR || TARGET_P9_DFORM_VECTOR)
!       && !TARGET_DIRECT_MOVE)
!     {
!       /* We prefer to not mention undocumented options in
! 	 error messages.  However, if users have managed to select
! 	 power9-dform without selecting power9-vector, they
! 	 already know about undocumented flags.  */
!       if ((rs6000_isa_flags_explicit & OPTION_MASK_DIRECT_MOVE)
! 	  && ((rs6000_isa_flags_explicit & OPTION_MASK_P9_DFORM_VECTOR) ||
! 	      (rs6000_isa_flags_explicit & OPTION_MASK_P9_DFORM_SCALAR) ||
! 	      (TARGET_P9_DFORM_BOTH == 1)))
! 	error ("-mpower9-dform, -mpower9-dform-vector, -mpower9-dform-scalar"
! 	       " require -mdirect-move");
!       else if ((rs6000_isa_flags_explicit & OPTION_MASK_DIRECT_MOVE) == 0)
! 	{
! 	  rs6000_isa_flags |= OPTION_MASK_DIRECT_MOVE;
! 	  rs6000_isa_flags_explicit |= OPTION_MASK_DIRECT_MOVE;
! 	}
!       else
! 	{
! 	  rs6000_isa_flags &=
! 	    ~(OPTION_MASK_P9_DFORM_SCALAR | OPTION_MASK_P9_DFORM_VECTOR);
! 	  rs6000_isa_flags_explicit |=
! 	    (OPTION_MASK_P9_DFORM_SCALAR | OPTION_MASK_P9_DFORM_VECTOR);
! 	}
      }
  
    if (TARGET_P9_DFORM_SCALAR && !TARGET_UPPER_REGS_DF)
*************** rs6000_option_override_internal (bool gl
*** 4588,4594 ****
  
      default:
  
!       if (have_cpu && !(rs6000_isa_flags_explicit & OPTION_MASK_ISEL))
  	rs6000_isa_flags &= ~OPTION_MASK_ISEL;
  
        break;
--- 4730,4736 ----
  
      default:
  
!       if (cpu_index >= 0 && !(rs6000_isa_flags_explicit & OPTION_MASK_ISEL))
  	rs6000_isa_flags &= ~OPTION_MASK_ISEL;
  
        break;
*************** rs6000_expand_vector_set (rtx target, rt
*** 6923,6929 ****
      {
        if (TARGET_P9_VECTOR)
  	x = gen_rtx_UNSPEC (mode,
! 			    gen_rtvec (3, target, reg,
  				       force_reg (V16QImode, x)),
  			    UNSPEC_VPERMR);
        else
--- 7065,7071 ----
      {
        if (TARGET_P9_VECTOR)
  	x = gen_rtx_UNSPEC (mode,
! 			    gen_rtvec (3, reg, target,
  				       force_reg (V16QImode, x)),
  			    UNSPEC_VPERMR);
        else
*************** rs6000_gen_le_vsx_permute (rtx source, m
*** 9436,9442 ****
  {
    /* Use ROTATE instead of VEC_SELECT on IEEE 128-bit floating point, and
       128-bit integers if they are allowed in VSX registers.  */
!   if (FLOAT128_VECTOR_P (mode) || mode == TImode)
      return gen_rtx_ROTATE (mode, source, GEN_INT (64));
    else
      {
--- 9578,9584 ----
  {
    /* Use ROTATE instead of VEC_SELECT on IEEE 128-bit floating point, and
       128-bit integers if they are allowed in VSX registers.  */
!   if (FLOAT128_VECTOR_P (mode) || mode == TImode || mode == V1TImode)
      return gen_rtx_ROTATE (mode, source, GEN_INT (64));
    else
      {
*************** rs6000_discover_homogeneous_aggregate (m
*** 10239,10250 ****
  
        if (field_count > 0)
  	{
! 	  int n_regs = (SCALAR_FLOAT_MODE_P (field_mode) ?
! 			(GET_MODE_SIZE (field_mode) + 7) >> 3 : 1);
  
  	  /* The ELFv2 ABI allows homogeneous aggregates to occupy
  	     up to AGGR_ARG_NUM_REG registers.  */
! 	  if (field_count * n_regs <= AGGR_ARG_NUM_REG)
  	    {
  	      if (elt_mode)
  		*elt_mode = field_mode;
--- 10381,10392 ----
  
        if (field_count > 0)
  	{
! 	  int reg_size = ALTIVEC_OR_VSX_VECTOR_MODE (field_mode) ? 16 : 8;
! 	  int field_size = ROUND_UP (GET_MODE_SIZE (field_mode), reg_size);
  
  	  /* The ELFv2 ABI allows homogeneous aggregates to occupy
  	     up to AGGR_ARG_NUM_REG registers.  */
! 	  if (field_count * field_size <= AGGR_ARG_NUM_REG * reg_size)
  	    {
  	      if (elt_mode)
  		*elt_mode = field_mode;
*************** rs6000_gimplify_va_arg (tree valist, tre
*** 12755,12760 ****
--- 12897,12903 ----
  
        tree copy = build_call_expr (builtin_decl_implicit (BUILT_IN_MEMCPY),
  				   3, dest_addr, addr, size_int (rsize * 4));
+       TREE_ADDRESSABLE (tmp) = 1;
  
        gimplify_and_add (copy, pre_p);
        addr = dest_addr;
*************** cpu_expand_builtin (enum rs6000_builtins
*** 14162,14167 ****
--- 14305,14312 ----
        emit_insn (gen_eqsi3 (scratch2, scratch1, const0_rtx));
        emit_insn (gen_rtx_SET (target, gen_rtx_XOR (SImode, scratch2, const1_rtx)));
      }
+   else
+     gcc_unreachable ();
  
    /* Record that we have expanded a CPU builtin, so that we can later
       emit a reference to the special symbol exported by LIBC to ensure we
*************** cpu_expand_builtin (enum rs6000_builtins
*** 14169,14174 ****
--- 14314,14322 ----
    cpu_builtin_p = true;
  
  #else
+   warning (0, "%s needs GLIBC (2.23 and newer) that exports hardware "
+ 	   "capability bits", rs6000_builtin_info[(size_t) fcode].name);
+   
    /* For old LIBCs, always return FALSE.  */
    emit_move_insn (target, GEN_INT (0));
  #endif /* TARGET_LIBC_PROVIDES_HWCAP_IN_TCB */
*************** rs6000_invalid_builtin (enum rs6000_buil
*** 15501,15506 ****
--- 15649,15659 ----
      error ("Builtin function %s requires the -mhard-float option", name);
    else if ((fnmask & RS6000_BTM_FLOAT128) != 0)
      error ("Builtin function %s requires the -mfloat128 option", name);
+   else if ((fnmask & (RS6000_BTM_POPCNTD | RS6000_BTM_POWERPC64))
+ 	   == (RS6000_BTM_POPCNTD | RS6000_BTM_POWERPC64))
+     error ("builtin function %qs requires the %qs (or newer), and "
+ 	   "%qs or %qs options",
+ 	   name, "-mcpu=power7", "-m64", "-mpowerpc64");
    else
      error ("Builtin function %s is not supported with the current options",
  	   name);
*************** builtin_function_type (machine_mode mode
*** 17086,17094 ****
      case CRYPTO_BUILTIN_VPMSUM:
      case MISC_BUILTIN_ADDG6S:
      case MISC_BUILTIN_DIVWEU:
-     case MISC_BUILTIN_DIVWEUO:
      case MISC_BUILTIN_DIVDEU:
-     case MISC_BUILTIN_DIVDEUO:
        h.uns_p[0] = 1;
        h.uns_p[1] = 1;
        h.uns_p[2] = 1;
--- 17239,17245 ----
*************** print_operand (FILE *file, rtx x, int co
*** 21196,21202 ****
  
  	    /* Fall through.  Must be [reg+reg].  */
  	  }
! 	if (VECTOR_MEM_ALTIVEC_P (GET_MODE (x))
  	    && GET_CODE (tmp) == AND
  	    && GET_CODE (XEXP (tmp, 1)) == CONST_INT
  	    && INTVAL (XEXP (tmp, 1)) == -16)
--- 21347,21353 ----
  
  	    /* Fall through.  Must be [reg+reg].  */
  	  }
! 	if (VECTOR_MEM_ALTIVEC_OR_VSX_P (GET_MODE (x))
  	    && GET_CODE (tmp) == AND
  	    && GET_CODE (XEXP (tmp, 1)) == CONST_INT
  	    && INTVAL (XEXP (tmp, 1)) == -16)
*************** rs6000_emit_minmax (rtx dest, enum rtx_c
*** 23159,23207 ****
      emit_move_insn (dest, target);
  }
  
- /* Split a signbit operation on 64-bit machines with direct move.  Also allow
-    for the value to come from memory or if it is already loaded into a GPR.  */
- 
- void
- rs6000_split_signbit (rtx dest, rtx src)
- {
-   machine_mode d_mode = GET_MODE (dest);
-   machine_mode s_mode = GET_MODE (src);
-   rtx dest_di = (d_mode == DImode) ? dest : gen_lowpart (DImode, dest);
-   rtx shift_reg = dest_di;
- 
-   gcc_assert (FLOAT128_IEEE_P (s_mode) && TARGET_POWERPC64);
- 
-   if (MEM_P (src))
-     {
-       rtx mem = (WORDS_BIG_ENDIAN
- 		 ? adjust_address (src, DImode, 0)
- 		 : adjust_address (src, DImode, 8));
-       emit_insn (gen_rtx_SET (dest_di, mem));
-     }
- 
-   else
-     {
-       unsigned int r = reg_or_subregno (src);
- 
-       if (INT_REGNO_P (r))
- 	shift_reg = gen_rtx_REG (DImode, r + (BYTES_BIG_ENDIAN == 0));
- 
-       else
- 	{
- 	  /* Generate the special mfvsrd instruction to get it in a GPR.  */
- 	  gcc_assert (VSX_REGNO_P (r));
- 	  if (s_mode == KFmode)
- 	    emit_insn (gen_signbitkf2_dm2 (dest_di, src));
- 	  else
- 	    emit_insn (gen_signbittf2_dm2 (dest_di, src));
- 	}
-     }
- 
-   emit_insn (gen_lshrdi3 (dest_di, shift_reg, GEN_INT (63)));
-   return;
- }
- 
  /* A subroutine of the atomic operation splitters.  Jump to LABEL if
     COND is true.  Mark the jump as unlikely to be taken.  */
  
--- 23310,23315 ----
*************** debug_stack_info (rs6000_stack_t *info)
*** 25020,25043 ****
  rtx
  rs6000_return_addr (int count, rtx frame)
  {
!   /* Currently we don't optimize very well between prolog and body
!      code and for PIC code the code can be actually quite bad, so
!      don't try to be too clever here.  */
    if (count != 0
        || ((DEFAULT_ABI == ABI_V4 || DEFAULT_ABI == ABI_DARWIN) && flag_pic))
      {
        cfun->machine->ra_needs_full_frame = 1;
  
!       return
! 	gen_rtx_MEM
! 	  (Pmode,
! 	   memory_address
! 	   (Pmode,
! 	    plus_constant (Pmode,
! 			   copy_to_reg
! 			   (gen_rtx_MEM (Pmode,
! 					 memory_address (Pmode, frame))),
! 			   RETURN_ADDRESS_OFFSET)));
      }
  
    cfun->machine->ra_need_lr = 1;
--- 25128,25150 ----
  rtx
  rs6000_return_addr (int count, rtx frame)
  {
!   /* We can't use get_hard_reg_initial_val for LR when count == 0 if LR
!      is trashed by the prologue, as it is for PIC on ABI_V4 and Darwin.  */
    if (count != 0
        || ((DEFAULT_ABI == ABI_V4 || DEFAULT_ABI == ABI_DARWIN) && flag_pic))
      {
        cfun->machine->ra_needs_full_frame = 1;
  
!       if (count == 0)
! 	/* FRAME is set to frame_pointer_rtx by the generic code, but that
! 	   is good for loading 0(r1) only when !FRAME_GROWS_DOWNWARD.  */
! 	frame = stack_pointer_rtx;
!       rtx prev_frame_addr = memory_address (Pmode, frame);
!       rtx prev_frame = copy_to_reg (gen_rtx_MEM (Pmode, prev_frame_addr));
!       rtx lr_save_off = plus_constant (Pmode,
! 				       prev_frame, RETURN_ADDRESS_OFFSET);
!       rtx lr_save_addr = memory_address (Pmode, lr_save_off);
!       return gen_rtx_MEM (Pmode, lr_save_addr);
      }
  
    cfun->machine->ra_need_lr = 1;
*************** rs6000_internal_arg_pointer (void)
*** 29012,29019 ****
  	  emit_insn_after (pat, get_insns ());
  	  pop_topmost_sequence ();
  	}
!       return plus_constant (Pmode, cfun->machine->split_stack_arg_pointer,
! 			    FIRST_PARM_OFFSET (current_function_decl));
      }
    return virtual_incoming_args_rtx;
  }
--- 29119,29127 ----
  	  emit_insn_after (pat, get_insns ());
  	  pop_topmost_sequence ();
  	}
!       rtx ret = plus_constant (Pmode, cfun->machine->split_stack_arg_pointer,
! 			       FIRST_PARM_OFFSET (current_function_decl));
!       return copy_to_reg (ret);
      }
    return virtual_incoming_args_rtx;
  }
*************** rs6000_adjust_cost (rtx_insn *insn, rtx
*** 30187,30200 ****
                    case TYPE_LOAD:
                    case TYPE_CNTLZ:
                      {
!                       if (! store_data_bypass_p (dep_insn, insn))
                          return get_attr_sign_extend (dep_insn)
                                 == SIGN_EXTEND_YES ? 6 : 4;
                        break;
                      }
                    case TYPE_SHIFT:
                      {
!                       if (! store_data_bypass_p (dep_insn, insn))
                          return get_attr_var_shift (dep_insn) == VAR_SHIFT_YES ?
                                 6 : 3;
                        break;
--- 30295,30308 ----
                    case TYPE_LOAD:
                    case TYPE_CNTLZ:
                      {
!                       if (! rs6000_store_data_bypass_p (dep_insn, insn))
                          return get_attr_sign_extend (dep_insn)
                                 == SIGN_EXTEND_YES ? 6 : 4;
                        break;
                      }
                    case TYPE_SHIFT:
                      {
!                       if (! rs6000_store_data_bypass_p (dep_insn, insn))
                          return get_attr_var_shift (dep_insn) == VAR_SHIFT_YES ?
                                 6 : 3;
                        break;
*************** rs6000_adjust_cost (rtx_insn *insn, rtx
*** 30205,30211 ****
                    case TYPE_EXTS:
                    case TYPE_INSERT:
                      {
!                       if (! store_data_bypass_p (dep_insn, insn))
                          return 3;
                        break;
                      }
--- 30313,30319 ----
                    case TYPE_EXTS:
                    case TYPE_INSERT:
                      {
!                       if (! rs6000_store_data_bypass_p (dep_insn, insn))
                          return 3;
                        break;
                      }
*************** rs6000_adjust_cost (rtx_insn *insn, rtx
*** 30214,30232 ****
                    case TYPE_FPSTORE:
                      {
                        if (get_attr_update (dep_insn) == UPDATE_YES
!                           && ! store_data_bypass_p (dep_insn, insn))
                          return 3;
                        break;
                      }
                    case TYPE_MUL:
                      {
!                       if (! store_data_bypass_p (dep_insn, insn))
                          return 17;
                        break;
                      }
                    case TYPE_DIV:
                      {
!                       if (! store_data_bypass_p (dep_insn, insn))
                          return get_attr_size (dep_insn) == SIZE_32 ? 45 : 57;
                        break;
                      }
--- 30322,30340 ----
                    case TYPE_FPSTORE:
                      {
                        if (get_attr_update (dep_insn) == UPDATE_YES
!                           && ! rs6000_store_data_bypass_p (dep_insn, insn))
                          return 3;
                        break;
                      }
                    case TYPE_MUL:
                      {
!                       if (! rs6000_store_data_bypass_p (dep_insn, insn))
                          return 17;
                        break;
                      }
                    case TYPE_DIV:
                      {
!                       if (! rs6000_store_data_bypass_p (dep_insn, insn))
                          return get_attr_size (dep_insn) == SIZE_32 ? 45 : 57;
                        break;
                      }
*************** rs6000_elf_output_toc_section_asm_op (co
*** 32541,32548 ****
      {
        if (!toc_initialized)
  	{
- 	  toc_initialized = 1;
  	  fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);
  	  (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0);
  	  fprintf (asm_out_file, "\t.tc ");
  	  ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],");
--- 32649,32656 ----
      {
        if (!toc_initialized)
  	{
  	  fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);
+ 	  ASM_OUTPUT_ALIGN (asm_out_file, TARGET_64BIT ? 3 : 2);
  	  (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0);
  	  fprintf (asm_out_file, "\t.tc ");
  	  ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],");
*************** rs6000_elf_output_toc_section_asm_op (co
*** 32550,32569 ****
  	  fprintf (asm_out_file, "\n");
  
  	  fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);
  	  ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1");
  	  fprintf (asm_out_file, " = .+32768\n");
  	}
        else
  	fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);
      }
    else if ((DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_ELFv2)
  	   && !TARGET_RELOCATABLE)
!     fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);
    else
      {
        fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);
        if (!toc_initialized)
  	{
  	  ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1");
  	  fprintf (asm_out_file, " = .+32768\n");
  	  toc_initialized = 1;
--- 32658,32687 ----
  	  fprintf (asm_out_file, "\n");
  
  	  fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);
+ 	  ASM_OUTPUT_ALIGN (asm_out_file, TARGET_64BIT ? 3 : 2);
  	  ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1");
  	  fprintf (asm_out_file, " = .+32768\n");
+ 	  toc_initialized = 1;
  	}
        else
  	fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);
      }
    else if ((DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_ELFv2)
  	   && !TARGET_RELOCATABLE)
!     {
!       fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);
!       if (!toc_initialized)
! 	{
! 	  ASM_OUTPUT_ALIGN (asm_out_file, TARGET_64BIT ? 3 : 2);
! 	  toc_initialized = 1;
! 	}
!     }
    else
      {
        fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);
        if (!toc_initialized)
  	{
+ 	  ASM_OUTPUT_ALIGN (asm_out_file, TARGET_64BIT ? 3 : 2);
  	  ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1");
  	  fprintf (asm_out_file, " = .+32768\n");
  	  toc_initialized = 1;
*************** rs6000_elf_in_small_data_p (const_tree d
*** 32663,32668 ****
--- 32781,32791 ----
      }
    else
      {
+       /* If we are told not to put readonly data in sdata, then don't.  */
+       if (TREE_READONLY (decl) && rs6000_sdata != SDATA_EABI
+ 	  && !rs6000_readonly_in_sdata)
+ 	return false;
+ 
        HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (decl));
  
        if (size > 0
*************** rs6000_rtx_costs (rtx x, machine_mode mo
*** 34214,34227 ****
  	  *total = COSTS_N_INSNS (1);
  	  return true;
  	}
        if (outer_code == SET)
  	{
  	  if (XEXP (x, 1) == const0_rtx)
  	    {
! 	      if (TARGET_ISEL && !TARGET_MFCRF)
! 		*total = COSTS_N_INSNS (8);
! 	      else
! 		*total = COSTS_N_INSNS (2);
  	      return true;
  	    }
  	  else
--- 34337,34352 ----
  	  *total = COSTS_N_INSNS (1);
  	  return true;
  	}
+       /* FALLTHRU */
+ 
+     case GT:
+     case LT:
+     case UNORDERED:
        if (outer_code == SET)
  	{
  	  if (XEXP (x, 1) == const0_rtx)
  	    {
! 	      *total = COSTS_N_INSNS (2);
  	      return true;
  	    }
  	  else
*************** rs6000_rtx_costs (rtx x, machine_mode mo
*** 34230,34248 ****
  	      return false;
  	    }
  	}
-       /* FALLTHRU */
- 
-     case GT:
-     case LT:
-     case UNORDERED:
-       if (outer_code == SET && (XEXP (x, 1) == const0_rtx))
- 	{
- 	  if (TARGET_ISEL && !TARGET_MFCRF)
- 	    *total = COSTS_N_INSNS (8);
- 	  else
- 	    *total = COSTS_N_INSNS (2);
- 	  return true;
- 	}
        /* CC COMPARE.  */
        if (outer_code == COMPARE)
  	{
--- 34355,34360 ----
*************** altivec_expand_vec_perm_le (rtx operands
*** 34901,34907 ****
  
    if (TARGET_P9_VECTOR)
      {
!       unspec = gen_rtx_UNSPEC (mode, gen_rtvec (3, op0, op1, sel),
  			       UNSPEC_VPERMR);
      }
    else
--- 35013,35019 ----
  
    if (TARGET_P9_VECTOR)
      {
!       unspec = gen_rtx_UNSPEC (mode, gen_rtvec (3, op1, op0, sel),
  			       UNSPEC_VPERMR);
      }
    else
*************** static struct rs6000_opt_mask const rs60
*** 35949,35954 ****
--- 36061,36067 ----
    { "hard-dfp",		 RS6000_BTM_DFP,	false, false },
    { "hard-float",	 RS6000_BTM_HARD_FLOAT,	false, false },
    { "long-double-128",	 RS6000_BTM_LDBL128,	false, false },
+   { "powerpc64",	 RS6000_BTM_POWERPC64,  false, false },
    { "float128",		 RS6000_BTM_FLOAT128,   false, false },
  };
  
*************** rs6000_valid_attribute_p (tree fndecl,
*** 36224,36232 ****
  {
    struct cl_target_option cur_target;
    bool ret;
!   tree old_optimize = build_optimization_node (&global_options);
    tree new_target, new_optimize;
!   tree func_optimize = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (fndecl);
  
    gcc_assert ((fndecl != NULL_TREE) && (args != NULL_TREE));
  
--- 36337,36345 ----
  {
    struct cl_target_option cur_target;
    bool ret;
!   tree old_optimize;
    tree new_target, new_optimize;
!   tree func_optimize;
  
    gcc_assert ((fndecl != NULL_TREE) && (args != NULL_TREE));
  
*************** rs6000_pragma_target_parse (tree args, t
*** 36353,36358 ****
--- 36466,36472 ----
      }
  
    target_option_current_node = cur_tree;
+   rs6000_activate_target_options (target_option_current_node);
  
    /* If we have the preprocessor linked in (i.e. C or C++ languages), possibly
       change the macros that are defined.  */
*************** rs6000_pragma_target_parse (tree args, t
*** 36390,36412 ****
  /* Remember the last target of rs6000_set_current_function.  */
  static GTY(()) tree rs6000_previous_fndecl;
  
  /* Establish appropriate back-end context for processing the function
     FNDECL.  The argument might be NULL to indicate processing at top
     level, outside of any function scope.  */
  static void
  rs6000_set_current_function (tree fndecl)
  {
-   tree old_tree = (rs6000_previous_fndecl
- 		   ? DECL_FUNCTION_SPECIFIC_TARGET (rs6000_previous_fndecl)
- 		   : NULL_TREE);
- 
-   tree new_tree = (fndecl
- 		   ? DECL_FUNCTION_SPECIFIC_TARGET (fndecl)
- 		   : NULL_TREE);
- 
    if (TARGET_DEBUG_TARGET)
      {
-       bool print_final = false;
        fprintf (stderr, "\n==================== rs6000_set_current_function");
  
        if (fndecl)
--- 36504,36533 ----
  /* Remember the last target of rs6000_set_current_function.  */
  static GTY(()) tree rs6000_previous_fndecl;
  
+ /* Restore target's globals from NEW_TREE and invalidate the
+    rs6000_previous_fndecl cache.  */
+ 
+ void
+ rs6000_activate_target_options (tree new_tree)
+ {
+   cl_target_option_restore (&global_options, TREE_TARGET_OPTION (new_tree));
+   if (TREE_TARGET_GLOBALS (new_tree))
+     restore_target_globals (TREE_TARGET_GLOBALS (new_tree));
+   else if (new_tree == target_option_default_node)
+     restore_target_globals (&default_target_globals);
+   else
+     TREE_TARGET_GLOBALS (new_tree) = save_target_globals_default_opts ();
+   rs6000_previous_fndecl = NULL_TREE;
+ }
+ 
  /* Establish appropriate back-end context for processing the function
     FNDECL.  The argument might be NULL to indicate processing at top
     level, outside of any function scope.  */
  static void
  rs6000_set_current_function (tree fndecl)
  {
    if (TARGET_DEBUG_TARGET)
      {
        fprintf (stderr, "\n==================== rs6000_set_current_function");
  
        if (fndecl)
*************** rs6000_set_current_function (tree fndecl
*** 36419,36476 ****
  	fprintf (stderr, ", prev_fndecl (%p)", (void *)rs6000_previous_fndecl);
  
        fprintf (stderr, "\n");
        if (new_tree)
  	{
  	  fprintf (stderr, "\nnew fndecl target specific options:\n");
  	  debug_tree (new_tree);
- 	  print_final = true;
  	}
  
        if (old_tree)
  	{
  	  fprintf (stderr, "\nold fndecl target specific options:\n");
  	  debug_tree (old_tree);
- 	  print_final = true;
  	}
  
!       if (print_final)
  	fprintf (stderr, "--------------------\n");
      }
  
!   /* Only change the context if the function changes.  This hook is called
!      several times in the course of compiling a function, and we don't want to
!      slow things down too much or call target_reinit when it isn't safe.  */
!   if (fndecl && fndecl != rs6000_previous_fndecl)
!     {
!       rs6000_previous_fndecl = fndecl;
!       if (old_tree == new_tree)
! 	;
! 
!       else if (new_tree && new_tree != target_option_default_node)
! 	{
! 	  cl_target_option_restore (&global_options,
! 				    TREE_TARGET_OPTION (new_tree));
! 	  if (TREE_TARGET_GLOBALS (new_tree))
! 	    restore_target_globals (TREE_TARGET_GLOBALS (new_tree));
! 	  else
! 	    TREE_TARGET_GLOBALS (new_tree)
! 	      = save_target_globals_default_opts ();
! 	}
  
!       else if (old_tree && old_tree != target_option_default_node)
! 	{
! 	  new_tree = target_option_current_node;
! 	  cl_target_option_restore (&global_options,
! 				    TREE_TARGET_OPTION (new_tree));
! 	  if (TREE_TARGET_GLOBALS (new_tree))
! 	    restore_target_globals (TREE_TARGET_GLOBALS (new_tree));
! 	  else if (new_tree == target_option_default_node)
! 	    restore_target_globals (&default_target_globals);
! 	  else
! 	    TREE_TARGET_GLOBALS (new_tree)
! 	      = save_target_globals_default_opts ();
! 	}
!     }
  }
  
  
--- 36540,36599 ----
  	fprintf (stderr, ", prev_fndecl (%p)", (void *)rs6000_previous_fndecl);
  
        fprintf (stderr, "\n");
+     }
+ 
+   /* Only change the context if the function changes.  This hook is called
+      several times in the course of compiling a function, and we don't want to
+      slow things down too much or call target_reinit when it isn't safe.  */
+   if (fndecl == rs6000_previous_fndecl)
+     return;
+ 
+   tree old_tree;
+   if (rs6000_previous_fndecl == NULL_TREE)
+     old_tree = target_option_current_node;
+   else if (DECL_FUNCTION_SPECIFIC_TARGET (rs6000_previous_fndecl))
+     old_tree = DECL_FUNCTION_SPECIFIC_TARGET (rs6000_previous_fndecl);
+   else
+     old_tree = target_option_default_node;
+ 
+   tree new_tree;
+   if (fndecl == NULL_TREE)
+     {
+       if (old_tree != target_option_current_node)
+ 	new_tree = target_option_current_node;
+       else
+ 	new_tree = NULL_TREE;
+     }
+   else
+     {
+       new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl);
+       if (new_tree == NULL_TREE)
+ 	new_tree = target_option_default_node;
+     }
+ 
+   if (TARGET_DEBUG_TARGET)
+     {
        if (new_tree)
  	{
  	  fprintf (stderr, "\nnew fndecl target specific options:\n");
  	  debug_tree (new_tree);
  	}
  
        if (old_tree)
  	{
  	  fprintf (stderr, "\nold fndecl target specific options:\n");
  	  debug_tree (old_tree);
  	}
  
!       if (old_tree != NULL_TREE || new_tree != NULL_TREE)
  	fprintf (stderr, "--------------------\n");
      }
  
!   if (new_tree && old_tree != new_tree)
!     rs6000_activate_target_options (new_tree);
  
!   if (fndecl)
!     rs6000_previous_fndecl = fndecl;
  }
  
  
*************** insn_is_swap_p (rtx insn)
*** 38353,38358 ****
--- 38476,38513 ----
    return 1;
  }
  
+ /* Return 1 iff UID, known to reference a swap, is both fed by a load
+    and a feeder of a store.  */
+ static unsigned int
+ swap_feeds_both_load_and_store (swap_web_entry *insn_entry)
+ {
+   rtx insn = insn_entry->insn;
+   struct df_insn_info *insn_info = DF_INSN_INFO_GET (insn);
+   df_ref def, use;
+   struct df_link *link = 0;
+   rtx_insn *load = 0, *store = 0;
+   bool fed_by_load = 0;
+   bool feeds_store = 0;
+ 
+   FOR_EACH_INSN_INFO_USE (use, insn_info)
+     {
+       link = DF_REF_CHAIN (use);
+       load = DF_REF_INSN (link->ref);
+       if (insn_is_load_p (load) && insn_is_swap_p (load))
+ 	fed_by_load = 1;
+     }
+ 
+   FOR_EACH_INSN_INFO_DEF (def, insn_info)
+     {
+       link = DF_REF_CHAIN (def);
+       store = DF_REF_INSN (link->ref);
+       if (insn_is_store_p (store) && insn_is_swap_p (store))
+ 	feeds_store = 1;
+     }
+ 
+   return fed_by_load && feeds_store;
+ }
+ 
  /* Return TRUE if insn is a swap fed by a load from the constant pool.  */
  static bool
  const_load_sequence_p (swap_web_entry *insn_entry, rtx insn)
*************** rtx_is_swappable_p (rtx op, unsigned int
*** 38551,38556 ****
--- 38706,38712 ----
  	  {
  	  default:
  	    break;
+ 	  case UNSPEC_VBPERMQ:
  	  case UNSPEC_VMRGH_DIRECT:
  	  case UNSPEC_VMRGL_DIRECT:
  	  case UNSPEC_VPACK_SIGN_SIGN_SAT:
*************** rtx_is_swappable_p (rtx op, unsigned int
*** 38562,38567 ****
--- 38718,38724 ----
  	  case UNSPEC_VPERM_UNS:
  	  case UNSPEC_VPERMHI:
  	  case UNSPEC_VPERMSI:
+ 	  case UNSPEC_VPERMXOR:
  	  case UNSPEC_VPKPX:
  	  case UNSPEC_VSLDOI:
  	  case UNSPEC_VSLO:
*************** rs6000_analyze_swaps (function *fun)
*** 39509,39514 ****
--- 39666,39679 ----
  	  && !insn_entry[i].is_swap && !insn_entry[i].is_swappable)
  	root->web_not_optimizable = 1;
  
+       /* If we have a swap that is both fed by a permuting load
+ 	 and a feeder of a permuting store, then the optimization
+ 	 isn't appropriate.  (Consider vec_xl followed by vec_xst_be.)  */
+       else if (insn_entry[i].is_swap && !insn_entry[i].is_load
+ 	       && !insn_entry[i].is_store
+ 	       && swap_feeds_both_load_and_store (&insn_entry[i]))
+ 	root->web_not_optimizable = 1;
+ 
        /* If we have permuting loads or stores that are not accompanied
  	 by a register swap, the optimization isn't appropriate.  */
        else if (insn_entry[i].is_load && insn_entry[i].is_swap)
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/rs6000.h gcc-6.5.0/gcc/config/rs6000/rs6000.h
*** gcc-6.4.0/gcc/config/rs6000/rs6000.h	Mon Apr  3 22:57:32 2017
--- gcc-6.5.0/gcc/config/rs6000/rs6000.h	Thu Jun  7 14:03:35 2018
***************
*** 1,5 ****
  /* Definitions of target machine for GNU compiler, for IBM RS/6000.
!    Copyright (C) 1992-2016 Free Software Foundation, Inc.
     Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
  
     This file is part of GCC.
--- 1,5 ----
  /* Definitions of target machine for GNU compiler, for IBM RS/6000.
!    Copyright (C) 1992-2018 Free Software Foundation, Inc.
     Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
  
     This file is part of GCC.
***************
*** 110,116 ****
  /* Common ASM definitions used by ASM_SPEC among the various targets for
     handling -mcpu=xxx switches.  There is a parallel list in driver-rs6000.c to
     provide the default assembler options if the user uses -mcpu=native, so if
!    you make changes here, make them also there.  */
  #define ASM_CPU_SPEC \
  "%{!mcpu*: \
    %{mpowerpc64*: -mppc64} \
--- 110,117 ----
  /* Common ASM definitions used by ASM_SPEC among the various targets for
     handling -mcpu=xxx switches.  There is a parallel list in driver-rs6000.c to
     provide the default assembler options if the user uses -mcpu=native, so if
!    you make changes here, make them also there.  PR63177: Do not pass -mpower8
!    to the assembler if -mpower9-vector was also used.  */
  #define ASM_CPU_SPEC \
  "%{!mcpu*: \
    %{mpowerpc64*: -mppc64} \
***************
*** 124,130 ****
  %{mcpu=power6: %(asm_cpu_power6) -maltivec} \
  %{mcpu=power6x: %(asm_cpu_power6) -maltivec} \
  %{mcpu=power7: %(asm_cpu_power7)} \
! %{mcpu=power8: %(asm_cpu_power8)} \
  %{mcpu=power9: %(asm_cpu_power9)} \
  %{mcpu=a2: -ma2} \
  %{mcpu=powerpc: -mppc} \
--- 125,131 ----
  %{mcpu=power6: %(asm_cpu_power6) -maltivec} \
  %{mcpu=power6x: %(asm_cpu_power6) -maltivec} \
  %{mcpu=power7: %(asm_cpu_power7)} \
! %{mcpu=power8: %{!mpower9-vector: %(asm_cpu_power8)}} \
  %{mcpu=power9: %(asm_cpu_power9)} \
  %{mcpu=a2: -ma2} \
  %{mcpu=powerpc: -mppc} \
***************
*** 173,178 ****
--- 174,180 ----
  %{maltivec: -maltivec} \
  %{mvsx: -mvsx %{!maltivec: -maltivec} %{!mcpu*: %(asm_cpu_power7)}} \
  %{mpower8-vector|mcrypto|mdirect-move|mhtm: %{!mcpu*: %(asm_cpu_power8)}} \
+ %{mpower9-vector: %{!mcpu*|mcpu=power8: %(asm_cpu_power9)}} \
  -many"
  
  #define CPP_DEFAULT_SPEC ""
*************** extern int frame_pointer_needed;
*** 2721,2726 ****
--- 2723,2729 ----
  #define RS6000_BTM_HARD_FLOAT	MASK_SOFT_FLOAT	/* Hardware floating point.  */
  #define RS6000_BTM_LDBL128	MASK_MULTIPLE	/* 128-bit long double.  */
  #define RS6000_BTM_64BIT	MASK_64BIT	/* 64-bit addressing.  */
+ #define RS6000_BTM_POWERPC64	MASK_POWERPC64	/* 64-bit registers.  */
  #define RS6000_BTM_FLOAT128	MASK_FLOAT128	/* IEEE 128-bit float.  */
  
  #define RS6000_BTM_COMMON	(RS6000_BTM_ALTIVEC			\
*************** extern int frame_pointer_needed;
*** 2740,2745 ****
--- 2743,2749 ----
  				 | RS6000_BTM_DFP			\
  				 | RS6000_BTM_HARD_FLOAT		\
  				 | RS6000_BTM_LDBL128			\
+ 				 | RS6000_BTM_POWERPC64			\
  				 | RS6000_BTM_FLOAT128)
  
  /* Define builtin enum index.  */
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/rs6000.md gcc-6.5.0/gcc/config/rs6000/rs6000.md
*** gcc-6.4.0/gcc/config/rs6000/rs6000.md	Mon Jul  3 12:33:00 2017
--- gcc-6.5.0/gcc/config/rs6000/rs6000.md	Mon Apr  2 23:54:20 2018
***************
*** 1,5 ****
  ;; Machine description for IBM RISC System 6000 (POWER) for GNU C compiler
! ;; Copyright (C) 1990-2017 Free Software Foundation, Inc.
  ;; Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
  
  ;; This file is part of GCC.
--- 1,5 ----
  ;; Machine description for IBM RISC System 6000 (POWER) for GNU C compiler
! ;; Copyright (C) 1990-2018 Free Software Foundation, Inc.
  ;; Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
  
  ;; This file is part of GCC.
***************
*** 134,142 ****
     UNSPEC_CDTBCD
     UNSPEC_CBCDTD
     UNSPEC_DIVE
-    UNSPEC_DIVEO
     UNSPEC_DIVEU
-    UNSPEC_DIVEUO
     UNSPEC_UNPACK_128BIT
     UNSPEC_PACK_128BIT
     UNSPEC_LSQ
--- 134,140 ----
***************
*** 535,541 ****
  (define_code_attr su [(sign_extend	"s")
  		      (zero_extend	"u")
  		      (fix		"s")
! 		      (unsigned_fix	"s")
  		      (float		"s")
  		      (unsigned_float	"u")])
  
--- 533,539 ----
  (define_code_attr su [(sign_extend	"s")
  		      (zero_extend	"u")
  		      (fix		"s")
! 		      (unsigned_fix	"u")
  		      (float		"s")
  		      (unsigned_float	"u")])
  
***************
*** 4556,4567 ****
  {
    if (FLOAT128_IEEE_P (<MODE>mode))
      {
        if (<MODE>mode == KFmode)
! 	emit_insn (gen_signbitkf2_dm (operands[0], operands[1]));
        else if (<MODE>mode == TFmode)
! 	emit_insn (gen_signbittf2_dm (operands[0], operands[1]));
        else
  	gcc_unreachable ();
        DONE;
      }
    operands[2] = gen_reg_rtx (DFmode);
--- 4554,4572 ----
  {
    if (FLOAT128_IEEE_P (<MODE>mode))
      {
+       rtx dest = operands[0];
+       rtx src = operands[1];
+       rtx tmp = gen_reg_rtx (DImode);
+       rtx dest_di = gen_lowpart (DImode, dest);
+ 
        if (<MODE>mode == KFmode)
! 	emit_insn (gen_signbitkf2_dm (tmp, src));
        else if (<MODE>mode == TFmode)
! 	emit_insn (gen_signbittf2_dm (tmp, src));
        else
  	gcc_unreachable ();
+ 
+       emit_insn (gen_lshrdi3 (dest_di, tmp, GEN_INT (63)));
        DONE;
      }
    operands[2] = gen_reg_rtx (DFmode);
***************
*** 4582,4587 ****
--- 4587,4652 ----
      }
  })
  
+ ;; Optimize IEEE 128-bit signbit on 64-bit systems with direct move to avoid
+ ;; multiple direct moves.  If we used a SUBREG:DI of the Floa128 type, the
+ ;; register allocator would typically move the entire _Float128 item to GPRs (2
+ ;; instructions on ISA 3.0, 3-4 instructions on ISA 2.07).
+ ;;
+ ;; After register allocation, if the _Float128 had originally been in GPRs, the
+ ;; split allows the post reload phases to eliminate the move, and do the shift
+ ;; directly with the register that contains the signbit.
+ (define_insn_and_split "signbit<mode>2_dm"
+   [(set (match_operand:DI 0 "gpc_reg_operand" "=r,r")
+ 	(unspec:DI [(match_operand:SIGNBIT 1 "gpc_reg_operand" "wa,r")]
+ 		   UNSPEC_SIGNBIT))]
+   "TARGET_POWERPC64 && TARGET_DIRECT_MOVE"
+   "@
+    mfvsrd %0,%x1
+    #"
+   "&& reload_completed && int_reg_operand (operands[1], <MODE>mode)"
+   [(set (match_dup 0)
+ 	(match_dup 2))]
+ {
+   operands[2] = gen_highpart (DImode, operands[1]);
+ }
+  [(set_attr "type" "mftgpr,*")])
+ 
+ ;; Optimize IEEE 128-bit signbit on to avoid loading the value into a vector
+ ;; register and then doing a direct move if the value comes from memory.  On
+ ;; little endian, we have to load the 2nd double-word to get the sign bit.
+ (define_insn_and_split "*signbit<mode>2_dm_mem"
+   [(set (match_operand:DI 0 "gpc_reg_operand" "=b")
+ 	(unspec:DI [(match_operand:SIGNBIT 1 "memory_operand" "m")]
+ 		   UNSPEC_SIGNBIT))]
+   "TARGET_POWERPC64 && TARGET_DIRECT_MOVE"
+   "#"
+   "&& 1"
+   [(set (match_dup 0)
+ 	(match_dup 2))]
+ {
+   rtx dest = operands[0];
+   rtx src = operands[1];
+   rtx addr = XEXP (src, 0);
+ 
+   if (WORDS_BIG_ENDIAN)
+     operands[2] = adjust_address (src, DImode, 0);
+ 
+   else if (REG_P (addr) || SUBREG_P (addr))
+     operands[2] = adjust_address (src, DImode, 8);
+ 
+   else if (GET_CODE (addr) == PLUS && REG_P (XEXP (addr, 0))
+ 	   && CONST_INT_P (XEXP (addr, 1)) && mem_operand_gpr (src, DImode))
+     operands[2] = adjust_address (src, DImode, 8);
+ 
+   else
+     {
+       rtx tmp = can_create_pseudo_p () ? gen_reg_rtx (DImode) : dest;
+       emit_insn (gen_rtx_SET (tmp, addr));
+       operands[2] = change_address (src, DImode,
+ 				    gen_rtx_PLUS (DImode, tmp, GEN_INT (8)));
+     }
+ })
+ 
  (define_expand "copysign<mode>3"
    [(set (match_dup 3)
          (abs:SFDF (match_operand:SFDF 1 "gpc_reg_operand" "")))
***************
*** 4611,4664 ****
     operands[5] = CONST0_RTX (<MODE>mode);
    })
  
- ;; Optimize signbit on 64-bit systems with direct move to avoid doing the store
- ;; and load.
- (define_insn_and_split "signbit<mode>2_dm"
-   [(set (match_operand:SI 0 "gpc_reg_operand" "=r,r,r")
- 	(unspec:SI
- 	 [(match_operand:SIGNBIT 1 "input_operand" "wa,m,r")]
- 	 UNSPEC_SIGNBIT))]
-   "TARGET_POWERPC64 && TARGET_DIRECT_MOVE"
-   "#"
-   "&& reload_completed"
-   [(const_int 0)]
- {
-   rs6000_split_signbit (operands[0], operands[1]);
-   DONE;
- }
-  [(set_attr "length" "8,8,4")
-   (set_attr "type" "mftgpr,load,integer")])
- 
- (define_insn_and_split "*signbit<mode>2_dm_<su>ext"
-   [(set (match_operand:DI 0 "gpc_reg_operand" "=r,r,r")
- 	(any_extend:DI
- 	 (unspec:SI
- 	  [(match_operand:SIGNBIT 1 "input_operand" "wa,m,r")]
- 	  UNSPEC_SIGNBIT)))]
-   "TARGET_POWERPC64 && TARGET_DIRECT_MOVE"
-   "#"
-   "&& reload_completed"
-   [(const_int 0)]
- {
-   rs6000_split_signbit (operands[0], operands[1]);
-   DONE;
- }
-  [(set_attr "length" "8,8,4")
-   (set_attr "type" "mftgpr,load,integer")])
- 
- ;; MODES_TIEABLE_P doesn't allow DImode to be tied with the various floating
- ;; point types, which makes normal SUBREG's problematical. Instead use a
- ;; special pattern to avoid using a normal movdi.
- (define_insn "signbit<mode>2_dm2"
-   [(set (match_operand:DI 0 "gpc_reg_operand" "=r")
- 	(unspec:DI [(match_operand:SIGNBIT 1 "gpc_reg_operand" "wa")
- 		    (const_int 0)]
- 		   UNSPEC_SIGNBIT))]
-   "TARGET_POWERPC64 && TARGET_DIRECT_MOVE"
-   "mfvsrd %0,%x1"
-  [(set_attr "type" "mftgpr")])
- 
- 
  ;; Use an unspec rather providing an if-then-else in RTL, to prevent the
  ;; compiler from optimizing -0.0
  (define_insn "copysign<mode>3_fcpsgn"
--- 4676,4681 ----
***************
*** 13271,13284 ****
     (set_attr "length" "4")])
  
  (define_int_iterator UNSPEC_DIV_EXTEND [UNSPEC_DIVE
! 					UNSPEC_DIVEO
! 					UNSPEC_DIVEU
! 					UNSPEC_DIVEUO])
  
  (define_int_attr div_extend [(UNSPEC_DIVE	"e")
! 			     (UNSPEC_DIVEO	"eo")
! 			     (UNSPEC_DIVEU	"eu")
! 			     (UNSPEC_DIVEUO	"euo")])
  
  (define_insn "div<div_extend>_<mode>"
    [(set (match_operand:GPR 0 "register_operand" "=r")
--- 13288,13297 ----
     (set_attr "length" "4")])
  
  (define_int_iterator UNSPEC_DIV_EXTEND [UNSPEC_DIVE
! 					UNSPEC_DIVEU])
  
  (define_int_attr div_extend [(UNSPEC_DIVE	"e")
! 			     (UNSPEC_DIVEU	"eu")])
  
  (define_insn "div<div_extend>_<mode>"
    [(set (match_operand:GPR 0 "register_operand" "=r")
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/sysv4.h gcc-6.5.0/gcc/config/rs6000/sysv4.h
*** gcc-6.4.0/gcc/config/rs6000/sysv4.h	Mon May 16 13:47:47 2016
--- gcc-6.5.0/gcc/config/rs6000/sysv4.h	Tue Aug 29 08:27:02 2017
*************** ENDIAN_SELECT(" -mbig", " -mlittle", DEF
*** 752,775 ****
  #define CRTOFFLOADEND ""
  #endif
  
! #ifdef HAVE_LD_PIE
! #define	STARTFILE_LINUX_SPEC "\
! %{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
! %{mnewlib:ecrti.o%s;:crti.o%s} \
! %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
! " CRTOFFLOADBEGIN
! #else
! #define	STARTFILE_LINUX_SPEC "\
! %{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
! %{mnewlib:ecrti.o%s;:crti.o%s} \
! %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s} \
! " CRTOFFLOADBEGIN
! #endif
  
! #define	ENDFILE_LINUX_SPEC "\
! %{shared|pie:crtendS.o%s;:crtend.o%s} \
! %{mnewlib:ecrtn.o%s;:crtn.o%s} \
! " CRTOFFLOADEND
  
  #define LINK_START_LINUX_SPEC ""
  
--- 752,785 ----
  #define CRTOFFLOADEND ""
  #endif
  
! /* STARTFILE_LINUX_SPEC should be the same as GNU_USER_TARGET_STARTFILE_SPEC
!    but with the mnewlib ecrti.o%s selection substituted for crti.o%s.  */
! #define	STARTFILE_LINUX_SPEC \
!   "%{shared:; \
!      pg|p|profile:gcrt1.o%s; \
!      static:crt1.o%s; \
!      " PIE_SPEC ":Scrt1.o%s; \
!      :crt1.o%s} \
!    %{mnewlib:ecrti.o%s;:crti.o%s} \
!    %{static:crtbeginT.o%s; \
!      shared|" PIE_SPEC ":crtbeginS.o%s; \
!      :crtbegin.o%s} \
!    %{fvtable-verify=none:%s; \
!      fvtable-verify=preinit:vtv_start_preinit.o%s; \
!      fvtable-verify=std:vtv_start.o%s} \
!    " CRTOFFLOADBEGIN
  
! /* ENDFILE_LINUX_SPEC should be the same as GNU_USER_TARGET_ENDFILE_SPEC
!    but with the mnewlib ecrtn.o%s selection substituted for crtn.o%s.  */
! #define ENDFILE_LINUX_SPEC \
!   "%{fvtable-verify=none:%s; \
!      fvtable-verify=preinit:vtv_end_preinit.o%s; \
!      fvtable-verify=std:vtv_end.o%s} \
!    %{static:crtend.o%s; \
!      shared|" PIE_SPEC ":crtendS.o%s; \
!      :crtend.o%s} \
!    %{mnewlib:ecrtn.o%s;:crtn.o%s} \
!    " CRTOFFLOADEND
  
  #define LINK_START_LINUX_SPEC ""
  
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/sysv4.opt gcc-6.5.0/gcc/config/rs6000/sysv4.opt
*** gcc-6.4.0/gcc/config/rs6000/sysv4.opt	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/rs6000/sysv4.opt	Tue Mar 27 23:28:25 2018
*************** msdata=
*** 27,32 ****
--- 27,36 ----
  Target RejectNegative Joined Var(rs6000_sdata_name)
  Select method for sdata handling.
  
+ mreadonly-in-sdata
+ Target Report Var(rs6000_readonly_in_sdata) Init(1) Save
+ Allow readonly data in sdata.
+ 
  mtls-size=
  Target RejectNegative Joined Var(rs6000_tls_size) Enum(rs6000_tls_size)
  Specify bit size of immediate TLS offsets.
diff -Nrcpad gcc-6.4.0/gcc/config/rs6000/vsx.md gcc-6.5.0/gcc/config/rs6000/vsx.md
*** gcc-6.4.0/gcc/config/rs6000/vsx.md	Wed Jun 21 18:02:37 2017
--- gcc-6.5.0/gcc/config/rs6000/vsx.md	Tue Jan 23 18:18:25 2018
***************
*** 24,38 ****
  ;; Iterator for the 2 64-bit vector types
  (define_mode_iterator VSX_D [V2DF V2DI])
  
- ;; Iterator for the 2 64-bit vector types + 128-bit types that are loaded with
- ;; lxvd2x to properly handle swapping words on little endian
- (define_mode_iterator VSX_LE [V2DF V2DI V1TI])
- 
  ;; Mode iterator to handle swapping words on little endian for the 128-bit
  ;; types that goes in a single vector register.
  (define_mode_iterator VSX_LE_128 [(KF   "FLOAT128_VECTOR_P (KFmode)")
  				  (TF   "FLOAT128_VECTOR_P (TFmode)")
! 				  (TI	"TARGET_VSX_TIMODE")])
  
  ;; Iterator for the 2 32-bit vector types
  (define_mode_iterator VSX_W [V4SF V4SI])
--- 24,35 ----
  ;; Iterator for the 2 64-bit vector types
  (define_mode_iterator VSX_D [V2DF V2DI])
  
  ;; Mode iterator to handle swapping words on little endian for the 128-bit
  ;; types that goes in a single vector register.
  (define_mode_iterator VSX_LE_128 [(KF   "FLOAT128_VECTOR_P (KFmode)")
  				  (TF   "FLOAT128_VECTOR_P (TFmode)")
! 				  (TI	"TARGET_VSX_TIMODE")
! 				  V1TI])
  
  ;; Iterator for the 2 32-bit vector types
  (define_mode_iterator VSX_W [V4SF V4SI])
***************
*** 300,307 ****
  ;; The patterns for LE permuted loads and stores come before the general
  ;; VSX moves so they match first.
  (define_insn_and_split "*vsx_le_perm_load_<mode>"
!   [(set (match_operand:VSX_LE 0 "vsx_register_operand" "=<VSa>")
!         (match_operand:VSX_LE 1 "memory_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
--- 297,304 ----
  ;; The patterns for LE permuted loads and stores come before the general
  ;; VSX moves so they match first.
  (define_insn_and_split "*vsx_le_perm_load_<mode>"
!   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>")
!         (match_operand:VSX_D 1 "indexed_or_indirect_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
***************
*** 324,330 ****
  
  (define_insn_and_split "*vsx_le_perm_load_<mode>"
    [(set (match_operand:VSX_W 0 "vsx_register_operand" "=<VSa>")
!         (match_operand:VSX_W 1 "memory_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
--- 321,327 ----
  
  (define_insn_and_split "*vsx_le_perm_load_<mode>"
    [(set (match_operand:VSX_W 0 "vsx_register_operand" "=<VSa>")
!         (match_operand:VSX_W 1 "indexed_or_indirect_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
***************
*** 349,355 ****
  
  (define_insn_and_split "*vsx_le_perm_load_v8hi"
    [(set (match_operand:V8HI 0 "vsx_register_operand" "=wa")
!         (match_operand:V8HI 1 "memory_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
--- 346,352 ----
  
  (define_insn_and_split "*vsx_le_perm_load_v8hi"
    [(set (match_operand:V8HI 0 "vsx_register_operand" "=wa")
!         (match_operand:V8HI 1 "indexed_or_indirect_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
***************
*** 378,384 ****
  
  (define_insn_and_split "*vsx_le_perm_load_v16qi"
    [(set (match_operand:V16QI 0 "vsx_register_operand" "=wa")
!         (match_operand:V16QI 1 "memory_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
--- 375,381 ----
  
  (define_insn_and_split "*vsx_le_perm_load_v16qi"
    [(set (match_operand:V16QI 0 "vsx_register_operand" "=wa")
!         (match_operand:V16QI 1 "indexed_or_indirect_operand" "Z"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
***************
*** 414,429 ****
     (set_attr "length" "8")])
  
  (define_insn "*vsx_le_perm_store_<mode>"
!   [(set (match_operand:VSX_LE 0 "memory_operand" "=Z")
!         (match_operand:VSX_LE 1 "vsx_register_operand" "+<VSa>"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    [(set_attr "type" "vecstore")
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:VSX_LE 0 "memory_operand" "")
!         (match_operand:VSX_LE 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
          (vec_select:<MODE>
--- 411,426 ----
     (set_attr "length" "8")])
  
  (define_insn "*vsx_le_perm_store_<mode>"
!   [(set (match_operand:VSX_D 0 "indexed_or_indirect_operand" "=Z")
!         (match_operand:VSX_D 1 "vsx_register_operand" "+<VSa>"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
    [(set_attr "type" "vecstore")
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:VSX_D 0 "indexed_or_indirect_operand" "")
!         (match_operand:VSX_D 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
          (vec_select:<MODE>
***************
*** 441,448 ****
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:VSX_LE 0 "memory_operand" "")
!         (match_operand:VSX_LE 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
          (vec_select:<MODE>
--- 438,445 ----
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:VSX_D 0 "indexed_or_indirect_operand" "")
!         (match_operand:VSX_D 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
          (vec_select:<MODE>
***************
*** 459,465 ****
    "")
  
  (define_insn "*vsx_le_perm_store_<mode>"
!   [(set (match_operand:VSX_W 0 "memory_operand" "=Z")
          (match_operand:VSX_W 1 "vsx_register_operand" "+<VSa>"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
--- 456,462 ----
    "")
  
  (define_insn "*vsx_le_perm_store_<mode>"
!   [(set (match_operand:VSX_W 0 "indexed_or_indirect_operand" "=Z")
          (match_operand:VSX_W 1 "vsx_register_operand" "+<VSa>"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
***************
*** 467,473 ****
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:VSX_W 0 "memory_operand" "")
          (match_operand:VSX_W 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
--- 464,470 ----
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:VSX_W 0 "indexed_or_indirect_operand" "")
          (match_operand:VSX_W 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
***************
*** 488,494 ****
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:VSX_W 0 "memory_operand" "")
          (match_operand:VSX_W 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
--- 485,491 ----
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:VSX_W 0 "indexed_or_indirect_operand" "")
          (match_operand:VSX_W 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
***************
*** 509,515 ****
    "")
  
  (define_insn "*vsx_le_perm_store_v8hi"
!   [(set (match_operand:V8HI 0 "memory_operand" "=Z")
          (match_operand:V8HI 1 "vsx_register_operand" "+wa"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
--- 506,512 ----
    "")
  
  (define_insn "*vsx_le_perm_store_v8hi"
!   [(set (match_operand:V8HI 0 "indexed_or_indirect_operand" "=Z")
          (match_operand:V8HI 1 "vsx_register_operand" "+wa"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
***************
*** 517,523 ****
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:V8HI 0 "memory_operand" "")
          (match_operand:V8HI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
--- 514,520 ----
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:V8HI 0 "indexed_or_indirect_operand" "")
          (match_operand:V8HI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
***************
*** 542,548 ****
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:V8HI 0 "memory_operand" "")
          (match_operand:V8HI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
--- 539,545 ----
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:V8HI 0 "indexed_or_indirect_operand" "")
          (match_operand:V8HI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
***************
*** 569,575 ****
    "")
  
  (define_insn "*vsx_le_perm_store_v16qi"
!   [(set (match_operand:V16QI 0 "memory_operand" "=Z")
          (match_operand:V16QI 1 "vsx_register_operand" "+wa"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
--- 566,572 ----
    "")
  
  (define_insn "*vsx_le_perm_store_v16qi"
!   [(set (match_operand:V16QI 0 "indexed_or_indirect_operand" "=Z")
          (match_operand:V16QI 1 "vsx_register_operand" "+wa"))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR"
    "#"
***************
*** 577,583 ****
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:V16QI 0 "memory_operand" "")
          (match_operand:V16QI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
--- 574,580 ----
     (set_attr "length" "12")])
  
  (define_split
!   [(set (match_operand:V16QI 0 "indexed_or_indirect_operand" "")
          (match_operand:V16QI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && !reload_completed"
    [(set (match_dup 2)
***************
*** 610,616 ****
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:V16QI 0 "memory_operand" "")
          (match_operand:V16QI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
--- 607,613 ----
  ;; The post-reload split requires that we re-permute the source
  ;; register in case it is still live.
  (define_split
!   [(set (match_operand:V16QI 0 "indexed_or_indirect_operand" "")
          (match_operand:V16QI 1 "vsx_register_operand" ""))]
    "!BYTES_BIG_ENDIAN && TARGET_VSX && !TARGET_P9_VECTOR && reload_completed"
    [(set (match_dup 1)
***************
*** 1908,1913 ****
--- 1905,1984 ----
  }
    [(set_attr "type" "vecperm")])
  
+ ;; Combiner patterns to allow creating XXPERMDI's to access either double
+ ;; word element in a vector register.
+ (define_insn "*vsx_concat_<mode>_1"
+   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>")
+ 	(vec_concat:VSX_D
+ 	 (vec_select:<VS_scalar>
+ 	  (match_operand:VSX_D 1 "gpc_reg_operand" "<VSa>")
+ 	  (parallel [(match_operand:QI 2 "const_0_to_1_operand" "n")]))
+ 	 (match_operand:<VS_scalar> 3 "gpc_reg_operand" "<VSa>")))]
+   "VECTOR_MEM_VSX_P (<MODE>mode)"
+ {
+   HOST_WIDE_INT dword = INTVAL (operands[2]);
+   if (BYTES_BIG_ENDIAN)
+     {
+       operands[4] = GEN_INT (2*dword);
+       return "xxpermdi %x0,%x1,%x3,%4";
+     }
+   else
+     {
+       operands[4] = GEN_INT (!dword);
+       return "xxpermdi %x0,%x3,%x1,%4";
+     }
+ }
+   [(set_attr "type" "vecperm")])
+ 
+ (define_insn "*vsx_concat_<mode>_2"
+   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>")
+ 	(vec_concat:VSX_D
+ 	 (match_operand:<VS_scalar> 1 "gpc_reg_operand" "<VSa>")
+ 	 (vec_select:<VS_scalar>
+ 	  (match_operand:VSX_D 2 "gpc_reg_operand" "<VSa>")
+ 	  (parallel [(match_operand:QI 3 "const_0_to_1_operand" "n")]))))]
+   "VECTOR_MEM_VSX_P (<MODE>mode)"
+ {
+   HOST_WIDE_INT dword = INTVAL (operands[3]);
+   if (BYTES_BIG_ENDIAN)
+     {
+       operands[4] = GEN_INT (dword);
+       return "xxpermdi %x0,%x1,%x2,%4";
+     }
+   else
+     {
+       operands[4] = GEN_INT (2 * !dword);
+       return "xxpermdi %x0,%x2,%x1,%4";
+     }
+ }
+   [(set_attr "type" "vecperm")])
+ 
+ (define_insn "*vsx_concat_<mode>_3"
+   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>")
+ 	(vec_concat:VSX_D
+ 	 (vec_select:<VS_scalar>
+ 	  (match_operand:VSX_D 1 "gpc_reg_operand" "<VSa>")
+ 	  (parallel [(match_operand:QI 2 "const_0_to_1_operand" "n")]))
+ 	 (vec_select:<VS_scalar>
+ 	  (match_operand:VSX_D 3 "gpc_reg_operand" "<VSa>")
+ 	  (parallel [(match_operand:QI 4 "const_0_to_1_operand" "n")]))))]
+   "VECTOR_MEM_VSX_P (<MODE>mode)"
+ {
+   HOST_WIDE_INT dword1 = INTVAL (operands[2]);
+   HOST_WIDE_INT dword2 = INTVAL (operands[4]);
+   if (BYTES_BIG_ENDIAN)
+     {
+       operands[5] = GEN_INT ((2 * dword1) + dword2);
+       return "xxpermdi %x0,%x1,%x3,%5";
+     }
+   else
+     {
+       operands[5] = GEN_INT ((2 * !dword2) + !dword1);
+       return "xxpermdi %x0,%x3,%x1,%5";
+     }
+ }
+   [(set_attr "type" "vecperm")])
+ 
  ;; Special purpose concat using xxpermdi to glue two single precision values
  ;; together, relying on the fact that internally scalar floats are represented
  ;; as doubles.  This is used to initialize a V4SF vector with 4 floats
***************
*** 1929,1937 ****
  ;; xxpermdi for little endian loads and stores.  We need several of
  ;; these since the form of the PARALLEL differs by mode.
  (define_insn "*vsx_xxpermdi2_le_<mode>"
!   [(set (match_operand:VSX_LE 0 "vsx_register_operand" "=<VSa>")
!         (vec_select:VSX_LE
!           (match_operand:VSX_LE 1 "vsx_register_operand" "<VSa>")
            (parallel [(const_int 1) (const_int 0)])))]
    "!BYTES_BIG_ENDIAN && VECTOR_MEM_VSX_P (<MODE>mode)"
    "xxpermdi %x0,%x1,%x1,2"
--- 2000,2008 ----
  ;; xxpermdi for little endian loads and stores.  We need several of
  ;; these since the form of the PARALLEL differs by mode.
  (define_insn "*vsx_xxpermdi2_le_<mode>"
!   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>")
!         (vec_select:VSX_D
!           (match_operand:VSX_D 1 "vsx_register_operand" "<VSa>")
            (parallel [(const_int 1) (const_int 0)])))]
    "!BYTES_BIG_ENDIAN && VECTOR_MEM_VSX_P (<MODE>mode)"
    "xxpermdi %x0,%x1,%x1,2"
***************
*** 1978,1986 ****
  ;; lxvd2x for little endian loads.  We need several of
  ;; these since the form of the PARALLEL differs by mode.
  (define_insn "*vsx_lxvd2x2_le_<mode>"
!   [(set (match_operand:VSX_LE 0 "vsx_register_operand" "=<VSa>")
!         (vec_select:VSX_LE
!           (match_operand:VSX_LE 1 "memory_operand" "Z")
            (parallel [(const_int 1) (const_int 0)])))]
    "!BYTES_BIG_ENDIAN && VECTOR_MEM_VSX_P (<MODE>mode) && !TARGET_P9_VECTOR"
    "lxvd2x %x0,%y1"
--- 2049,2057 ----
  ;; lxvd2x for little endian loads.  We need several of
  ;; these since the form of the PARALLEL differs by mode.
  (define_insn "*vsx_lxvd2x2_le_<mode>"
!   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=<VSa>")
!         (vec_select:VSX_D
!           (match_operand:VSX_D 1 "memory_operand" "Z")
            (parallel [(const_int 1) (const_int 0)])))]
    "!BYTES_BIG_ENDIAN && VECTOR_MEM_VSX_P (<MODE>mode) && !TARGET_P9_VECTOR"
    "lxvd2x %x0,%y1"
***************
*** 2027,2035 ****
  ;; stxvd2x for little endian stores.  We need several of
  ;; these since the form of the PARALLEL differs by mode.
  (define_insn "*vsx_stxvd2x2_le_<mode>"
!   [(set (match_operand:VSX_LE 0 "memory_operand" "=Z")
!         (vec_select:VSX_LE
!           (match_operand:VSX_LE 1 "vsx_register_operand" "<VSa>")
            (parallel [(const_int 1) (const_int 0)])))]
    "!BYTES_BIG_ENDIAN && VECTOR_MEM_VSX_P (<MODE>mode) && !TARGET_P9_VECTOR"
    "stxvd2x %x1,%y0"
--- 2098,2106 ----
  ;; stxvd2x for little endian stores.  We need several of
  ;; these since the form of the PARALLEL differs by mode.
  (define_insn "*vsx_stxvd2x2_le_<mode>"
!   [(set (match_operand:VSX_D 0 "memory_operand" "=Z")
!         (vec_select:VSX_D
!           (match_operand:VSX_D 1 "vsx_register_operand" "<VSa>")
            (parallel [(const_int 1) (const_int 0)])))]
    "!BYTES_BIG_ENDIAN && VECTOR_MEM_VSX_P (<MODE>mode) && !TARGET_P9_VECTOR"
    "stxvd2x %x1,%y0"
***************
*** 2088,2112 ****
    DONE;
  })
  
! ;; Set the element of a V2DI/VD2F mode
! (define_insn "vsx_set_<mode>"
!   [(set (match_operand:VSX_D 0 "vsx_register_operand" "=wd,?<VSa>")
! 	(unspec:VSX_D
! 	 [(match_operand:VSX_D 1 "vsx_register_operand" "wd,<VSa>")
! 	  (match_operand:<VS_scalar> 2 "vsx_register_operand" "<VS_64reg>,<VSa>")
! 	  (match_operand:QI 3 "u5bit_cint_operand" "i,i")]
! 	 UNSPEC_VSX_SET))]
    "VECTOR_MEM_VSX_P (<MODE>mode)"
  {
!   int idx_first = BYTES_BIG_ENDIAN ? 0 : 1;
!   if (INTVAL (operands[3]) == idx_first)
!     return \"xxpermdi %x0,%x2,%x1,1\";
!   else if (INTVAL (operands[3]) == 1 - idx_first)
!     return \"xxpermdi %x0,%x1,%x2,0\";
    else
      gcc_unreachable ();
! }
!   [(set_attr "type" "vecperm")])
  
  ;; Extract a DF/DI element from V2DF/V2DI
  (define_expand "vsx_extract_<mode>"
--- 2159,2193 ----
    DONE;
  })
  
! ;; Rewrite V2DF/V2DI set in terms of VEC_CONCAT
! (define_expand "vsx_set_<mode>"
!   [(use (match_operand:VSX_D 0 "vsx_register_operand"))
!    (use (match_operand:VSX_D 1 "vsx_register_operand"))
!    (use (match_operand:<VS_scalar> 2 "gpc_reg_operand"))
!    (use (match_operand:QI 3 "const_0_to_1_operand"))]
    "VECTOR_MEM_VSX_P (<MODE>mode)"
  {
!   rtx dest = operands[0];
!   rtx vec_reg = operands[1];
!   rtx value = operands[2];
!   rtx ele = operands[3];
!   rtx tmp = gen_reg_rtx (<VS_scalar>mode);
! 
!   if (ele == const0_rtx)
!     {
!       emit_insn (gen_vsx_extract_<mode> (tmp, vec_reg, const1_rtx));
!       emit_insn (gen_vsx_concat_<mode> (dest, value, tmp));
!       DONE;
!     }
!   else if (ele == const1_rtx)
!     {
!       emit_insn (gen_vsx_extract_<mode> (tmp, vec_reg, const0_rtx));
!       emit_insn (gen_vsx_concat_<mode> (dest, tmp, value));
!       DONE;
!     }
    else
      gcc_unreachable ();
! })
  
  ;; Extract a DF/DI element from V2DF/V2DI
  (define_expand "vsx_extract_<mode>"
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390-builtin-types.def gcc-6.5.0/gcc/config/s390/s390-builtin-types.def
*** gcc-6.4.0/gcc/config/s390/s390-builtin-types.def	Thu Aug 11 13:37:07 2016
--- gcc-6.5.0/gcc/config/s390/s390-builtin-types.def	Tue Jun  5 14:08:59 2018
*************** DEF_OPAQUE_VECTOR_TYPE (BT_BV2DI, B_VX,
*** 129,134 ****
--- 129,135 ----
  DEF_OPAQUE_VECTOR_TYPE (BT_BV8HI, B_VX, BT_BSHORT, 8)
  DEF_FN_TYPE_0 (BT_FN_INT, B_HTM, BT_INT)
  DEF_FN_TYPE_0 (BT_FN_UINT, 0, BT_UINT)
+ DEF_FN_TYPE_0 (BT_FN_VOID, B_HTM, BT_VOID)
  DEF_FN_TYPE_1 (BT_FN_INT_INT, B_VX, BT_INT, BT_INT)
  DEF_FN_TYPE_1 (BT_FN_INT_VOIDPTR, B_HTM, BT_INT, BT_VOIDPTR)
  DEF_FN_TYPE_1 (BT_FN_OV4SI_INT, B_VX, BT_OV4SI, BT_INT)
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390-builtins.def gcc-6.5.0/gcc/config/s390/s390-builtins.def
*** gcc-6.4.0/gcc/config/s390/s390-builtins.def	Thu Aug 11 13:37:07 2016
--- gcc-6.5.0/gcc/config/s390/s390-builtins.def	Tue Jun  5 14:08:59 2018
***************
*** 289,295 ****
     OB_DEF_VAR (<variant name>, <standard builtin name>, <flags>, <fntype>) */
  
  
! B_DEF      (tbeginc,                    tbeginc,            0,                  B_HTM,              0,                  BT_FN_INT)
  B_DEF      (tbegin,                     tbegin,             returns_twice_attr, B_HTM,              0,                  BT_FN_INT_VOIDPTR)
  B_DEF      (tbegin_nofloat,             tbegin_nofloat,     returns_twice_attr, B_HTM,              0,                  BT_FN_INT_VOIDPTR)
  B_DEF      (tbegin_retry,               tbegin_retry,       returns_twice_attr, B_HTM,              0,                  BT_FN_INT_VOIDPTR_INT)
--- 289,295 ----
     OB_DEF_VAR (<variant name>, <standard builtin name>, <flags>, <fntype>) */
  
  
! B_DEF      (tbeginc,                    tbeginc,            0,                  B_HTM,              0,                  BT_FN_VOID)
  B_DEF      (tbegin,                     tbegin,             returns_twice_attr, B_HTM,              0,                  BT_FN_INT_VOIDPTR)
  B_DEF      (tbegin_nofloat,             tbegin_nofloat,     returns_twice_attr, B_HTM,              0,                  BT_FN_INT_VOIDPTR)
  B_DEF      (tbegin_retry,               tbegin_retry,       returns_twice_attr, B_HTM,              0,                  BT_FN_INT_VOIDPTR_INT)
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390-opts.h gcc-6.5.0/gcc/config/s390/s390-opts.h
*** gcc-6.4.0/gcc/config/s390/s390-opts.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/s390/s390-opts.h	Wed Mar  7 13:10:35 2018
*************** enum processor_type
*** 42,45 ****
--- 42,54 ----
    PROCESSOR_max
  };
  
+ 
+ /* Values for -mindirect-branch and -mfunction-return options.  */
+ enum indirect_branch {
+   indirect_branch_unset = 0,
+   indirect_branch_keep,
+   indirect_branch_thunk,
+   indirect_branch_thunk_inline,
+   indirect_branch_thunk_extern
+ };
  #endif
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390-protos.h gcc-6.5.0/gcc/config/s390/s390-protos.h
*** gcc-6.4.0/gcc/config/s390/s390-protos.h	Fri Mar 11 07:23:49 2016
--- gcc-6.5.0/gcc/config/s390/s390-protos.h	Wed Mar  7 13:10:35 2018
*************** extern int s390_class_max_nregs (enum re
*** 53,58 ****
--- 53,59 ----
  extern int s390_cannot_change_mode_class (machine_mode, machine_mode,
  					  enum reg_class);
  extern bool s390_function_arg_vector (machine_mode, const_tree);
+ extern bool s390_return_addr_from_memory(void);
  #if S390_USE_TARGET_ATTRIBUTE
  extern tree s390_valid_target_attribute_tree (tree args,
  					      struct gcc_options *opts,
*************** extern int s390_compare_and_branch_condi
*** 146,151 ****
--- 147,163 ----
  extern bool s390_extzv_shift_ok (int, int, unsigned HOST_WIDE_INT);
  extern void s390_asm_output_function_label (FILE *, const char *, tree);
  
+ enum s390_indirect_branch_type
+   {
+     s390_indirect_branch_type_jump = 0,
+     s390_indirect_branch_type_call,
+     s390_indirect_branch_type_return
+   };
+ extern void s390_indirect_branch_via_thunk (unsigned int regno,
+ 					    unsigned int return_addr_regno,
+ 					    rtx comparison_operator,
+ 					    enum s390_indirect_branch_type type);
+ extern void s390_indirect_branch_via_inline_thunk (rtx execute_target);
  #endif /* RTX_CODE */
  
  /* s390-c.c routines */
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390.c gcc-6.5.0/gcc/config/s390/s390.c
*** gcc-6.4.0/gcc/config/s390/s390.c	Fri Dec  2 08:47:07 2016
--- gcc-6.5.0/gcc/config/s390/s390.c	Thu Apr 12 10:22:35 2018
*************** struct s390_address
*** 372,455 ****
    bool literal_pool;
  };
  
- /* The following structure is embedded in the machine
-    specific part of struct function.  */
- 
- struct GTY (()) s390_frame_layout
- {
-   /* Offset within stack frame.  */
-   HOST_WIDE_INT gprs_offset;
-   HOST_WIDE_INT f0_offset;
-   HOST_WIDE_INT f4_offset;
-   HOST_WIDE_INT f8_offset;
-   HOST_WIDE_INT backchain_offset;
- 
-   /* Number of first and last gpr where slots in the register
-      save area are reserved for.  */
-   int first_save_gpr_slot;
-   int last_save_gpr_slot;
- 
-   /* Location (FP register number) where GPRs (r0-r15) should
-      be saved to.
-       0 - does not need to be saved at all
-      -1 - stack slot  */
- #define SAVE_SLOT_NONE   0
- #define SAVE_SLOT_STACK -1
-   signed char gpr_save_slots[16];
- 
-   /* Number of first and last gpr to be saved, restored.  */
-   int first_save_gpr;
-   int first_restore_gpr;
-   int last_save_gpr;
-   int last_restore_gpr;
- 
-   /* Bits standing for floating point registers. Set, if the
-      respective register has to be saved. Starting with reg 16 (f0)
-      at the rightmost bit.
-      Bit 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
-      fpr 15 13 11  9 14 12 10  8  7  5  3  1  6  4  2  0
-      reg 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16  */
-   unsigned int fpr_bitmap;
- 
-   /* Number of floating point registers f8-f15 which must be saved.  */
-   int high_fprs;
- 
-   /* Set if return address needs to be saved.
-      This flag is set by s390_return_addr_rtx if it could not use
-      the initial value of r14 and therefore depends on r14 saved
-      to the stack.  */
-   bool save_return_addr_p;
- 
-   /* Size of stack frame.  */
-   HOST_WIDE_INT frame_size;
- };
- 
- /* Define the structure for the machine field in struct function.  */
- 
- struct GTY(()) machine_function
- {
-   struct s390_frame_layout frame_layout;
- 
-   /* Literal pool base register.  */
-   rtx base_reg;
- 
-   /* True if we may need to perform branch splitting.  */
-   bool split_branches_pending_p;
- 
-   bool has_landing_pad_p;
- 
-   /* True if the current function may contain a tbegin clobbering
-      FPRs.  */
-   bool tbegin_p;
- 
-   /* For -fsplit-stack support: A stack local which holds a pointer to
-      the stack arguments for a function with a variable number of
-      arguments.  This is set at the start of the function and is used
-      to initialize the overflow_arg_area field of the va_list
-      structure.  */
-   rtx split_stack_varargs_pointer;
- };
- 
  /* Few accessor macros for struct cfun->machine->s390_frame_layout.  */
  
  #define cfun_frame_layout (cfun->machine->frame_layout)
--- 372,377 ----
*************** struct GTY(()) machine_function
*** 490,495 ****
--- 412,444 ----
     bytes on a z10 (or higher) CPU.  */
  #define PREDICT_DISTANCE (TARGET_Z10 ? 384 : 2048)
  
+ /* Masks per jump target register indicating which thunk need to be
+    generated.  */
+ static GTY(()) int indirect_branch_prez10thunk_mask = 0;
+ static GTY(()) int indirect_branch_z10thunk_mask = 0;
+ 
+ #define INDIRECT_BRANCH_NUM_OPTIONS 4
+ 
+ enum s390_indirect_branch_option
+   {
+     s390_opt_indirect_branch_jump = 0,
+     s390_opt_indirect_branch_call,
+     s390_opt_function_return_reg,
+     s390_opt_function_return_mem
+   };
+ 
+ static GTY(()) int indirect_branch_table_label_no[INDIRECT_BRANCH_NUM_OPTIONS] = { 0 };
+ const char *indirect_branch_table_label[INDIRECT_BRANCH_NUM_OPTIONS] = \
+   { "LJUMP", "LCALL", "LRETREG", "LRETMEM" };
+ const char *indirect_branch_table_name[INDIRECT_BRANCH_NUM_OPTIONS] =	\
+   { ".s390_indirect_jump", ".s390_indirect_call",
+     ".s390_return_reg", ".s390_return_mem" };
+ 
+ bool
+ s390_return_addr_from_memory ()
+ {
+   return cfun_gpr_save_slot(RETURN_REGNUM) == SAVE_SLOT_STACK;
+ }
  
  /* Indicate which ABI has been used for passing vector args.
     0 - no vector type arguments have been passed where the ABI is relevant
*************** s390_handle_vectorbool_attribute (tree *
*** 1124,1132 ****
    return NULL_TREE;
  }
  
  static const struct attribute_spec s390_attribute_table[] = {
!   { "hotpatch", 2, 2, true, false, false, s390_handle_hotpatch_attribute, false },
!   { "s390_vector_bool", 0, 0, false, true, false, s390_handle_vectorbool_attribute, true },
    /* End element.  */
    { NULL,        0, 0, false, false, false, NULL, false }
  };
--- 1073,1155 ----
    return NULL_TREE;
  }
  
+ /* Check syntax of function decl attributes having a string type value.  */
+ 
+ static tree
+ s390_handle_string_attribute (tree *node, tree name ATTRIBUTE_UNUSED,
+ 			      tree args ATTRIBUTE_UNUSED,
+ 			      int flags ATTRIBUTE_UNUSED,
+ 			      bool *no_add_attrs)
+ {
+   tree cst;
+ 
+   if (TREE_CODE (*node) != FUNCTION_DECL)
+     {
+       warning (OPT_Wattributes, "%qE attribute only applies to functions",
+ 	       name);
+       *no_add_attrs = true;
+     }
+ 
+   cst = TREE_VALUE (args);
+ 
+   if (TREE_CODE (cst) != STRING_CST)
+     {
+       warning (OPT_Wattributes,
+ 	       "%qE attribute requires a string constant argument",
+ 	       name);
+       *no_add_attrs = true;
+     }
+ 
+   if (is_attribute_p ("indirect_branch", name)
+       || is_attribute_p ("indirect_branch_call", name)
+       || is_attribute_p ("function_return", name)
+       || is_attribute_p ("function_return_reg", name)
+       || is_attribute_p ("function_return_mem", name))
+     {
+       if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0
+ 	  && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
+ 	  && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
+       {
+ 	warning (OPT_Wattributes,
+ 		 "argument to %qE attribute is not "
+ 		 "(keep|thunk|thunk-extern)", name);
+ 	*no_add_attrs = true;
+       }
+     }
+ 
+   if (is_attribute_p ("indirect_branch_jump", name)
+       && strcmp (TREE_STRING_POINTER (cst), "keep") != 0
+       && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0
+       && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0
+       && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0)
+     {
+       warning (OPT_Wattributes,
+ 	       "argument to %qE attribute is not "
+ 	       "(keep|thunk|thunk-inline|thunk-extern)", name);
+       *no_add_attrs = true;
+     }
+ 
+   return NULL_TREE;
+ }
+ 
  static const struct attribute_spec s390_attribute_table[] = {
!   { "hotpatch", 2, 2, true, false, false,
!     s390_handle_hotpatch_attribute, false },
!   { "s390_vector_bool", 0, 0, false, true, false,
!     s390_handle_vectorbool_attribute, true },
!   { "indirect_branch", 1, 1, true, false, false,
!     s390_handle_string_attribute, false },
!   { "indirect_branch_jump", 1, 1, true, false, false,
!     s390_handle_string_attribute, false },
!   { "indirect_branch_call", 1, 1, true, false, false,
!     s390_handle_string_attribute, false },
!   { "function_return", 1, 1, true, false, false,
!     s390_handle_string_attribute, false },
!   { "function_return_reg", 1, 1, true, false, false,
!     s390_handle_string_attribute, false },
!   { "function_return_mem", 1, 1, true, false, false,
!     s390_handle_string_attribute, false },
! 
    /* End element.  */
    { NULL,        0, 0, false, false, false, NULL, false }
  };
*************** s390_find_constant (struct constant_pool
*** 8266,8276 ****
  static rtx
  s390_execute_label (rtx insn)
  {
!   if (NONJUMP_INSN_P (insn)
        && GET_CODE (PATTERN (insn)) == PARALLEL
        && GET_CODE (XVECEXP (PATTERN (insn), 0, 0)) == UNSPEC
!       && XINT (XVECEXP (PATTERN (insn), 0, 0), 1) == UNSPEC_EXECUTE)
!     return XVECEXP (XVECEXP (PATTERN (insn), 0, 0), 0, 2);
  
    return NULL_RTX;
  }
--- 8289,8313 ----
  static rtx
  s390_execute_label (rtx insn)
  {
!   if (INSN_P (insn)
        && GET_CODE (PATTERN (insn)) == PARALLEL
        && GET_CODE (XVECEXP (PATTERN (insn), 0, 0)) == UNSPEC
!       && (XINT (XVECEXP (PATTERN (insn), 0, 0), 1) == UNSPEC_EXECUTE
! 	  || XINT (XVECEXP (PATTERN (insn), 0, 0), 1) == UNSPEC_EXECUTE_JUMP))
!     {
!       if (XINT (XVECEXP (PATTERN (insn), 0, 0), 1) == UNSPEC_EXECUTE)
! 	return XVECEXP (XVECEXP (PATTERN (insn), 0, 0), 0, 2);
!       else
! 	{
! 	  gcc_assert (JUMP_P (insn));
! 	  /* For jump insns as execute target:
! 	     - There is one operand less in the parallel (the
! 	       modification register of the execute is always 0).
! 	     - The execute target label is wrapped into an
! 	       if_then_else in order to hide it from jump analysis.  */
! 	  return XEXP (XVECEXP (XVECEXP (PATTERN (insn), 0, 0), 0, 0), 0);
! 	}
!     }
  
    return NULL_RTX;
  }
*************** s390_emit_epilogue (bool sibcall)
*** 10942,10948 ****
    rtx frame_pointer, return_reg, cfa_restores = NULL_RTX;
    int area_bottom, area_top, offset = 0;
    int next_offset;
-   rtvec p;
    int i;
  
    if (TARGET_TPF_PROFILING)
--- 10979,10984 ----
*************** s390_emit_epilogue (bool sibcall)
*** 11096,11105 ****
  	  if (cfun_gpr_save_slot (RETURN_REGNUM) == SAVE_SLOT_STACK)
  	    {
  	      int return_regnum = find_unused_clobbered_reg();
! 	      if (!return_regnum)
! 		return_regnum = 4;
  	      return_reg = gen_rtx_REG (Pmode, return_regnum);
- 
  	      addr = plus_constant (Pmode, frame_pointer,
  				    offset + cfun_frame_layout.gprs_offset
  				    + (RETURN_REGNUM
--- 11132,11146 ----
  	  if (cfun_gpr_save_slot (RETURN_REGNUM) == SAVE_SLOT_STACK)
  	    {
  	      int return_regnum = find_unused_clobbered_reg();
! 	      if (!return_regnum
! 		  || (TARGET_INDIRECT_BRANCH_NOBP_RET_OPTION
! 		      && !TARGET_CPU_Z10
! 		      && return_regnum == INDIRECT_BRANCH_THUNK_REGNUM))
! 		{
! 		  gcc_assert (INDIRECT_BRANCH_THUNK_REGNUM != 4);
! 		  return_regnum = 4;
! 		}
  	      return_reg = gen_rtx_REG (Pmode, return_regnum);
  	      addr = plus_constant (Pmode, frame_pointer,
  				    offset + cfun_frame_layout.gprs_offset
  				    + (RETURN_REGNUM
*************** s390_emit_epilogue (bool sibcall)
*** 11135,11150 ****
    s390_restore_gprs_from_fprs ();
  
    if (! sibcall)
!     {
! 
!       /* Return to caller.  */
! 
!       p = rtvec_alloc (2);
! 
!       RTVEC_ELT (p, 0) = ret_rtx;
!       RTVEC_ELT (p, 1) = gen_rtx_USE (VOIDmode, return_reg);
!       emit_jump_insn (gen_rtx_PARALLEL (VOIDmode, p));
!     }
  }
  
  /* Implement TARGET_SET_UP_BY_PROLOGUE.  */
--- 11176,11182 ----
    s390_restore_gprs_from_fprs ();
  
    if (! sibcall)
!     emit_jump_insn (gen_return_use (return_reg));
  }
  
  /* Implement TARGET_SET_UP_BY_PROLOGUE.  */
*************** s390_output_mi_thunk (FILE *file, tree t
*** 12722,12727 ****
--- 12754,12865 ----
    final_end_function ();
  }
  
+ /* Output either an indirect jump or a an indirect call
+    (RETURN_ADDR_REGNO != INVALID_REGNUM) with target register REGNO
+    using a branch trampoline disabling branch target prediction.  */
+ 
+ void
+ s390_indirect_branch_via_thunk (unsigned int regno,
+ 				unsigned int return_addr_regno,
+ 				rtx comparison_operator,
+ 				enum s390_indirect_branch_type type)
+ {
+   enum s390_indirect_branch_option option;
+ 
+   if (type == s390_indirect_branch_type_return)
+     {
+       if (s390_return_addr_from_memory ())
+ 	option = s390_opt_function_return_mem;
+       else
+ 	option = s390_opt_function_return_reg;
+     }
+   else if (type == s390_indirect_branch_type_jump)
+     option = s390_opt_indirect_branch_jump;
+   else if (type == s390_indirect_branch_type_call)
+     option = s390_opt_indirect_branch_call;
+   else
+     gcc_unreachable ();
+ 
+   if (TARGET_INDIRECT_BRANCH_TABLE)
+     {
+       char label[32];
+ 
+       ASM_GENERATE_INTERNAL_LABEL (label,
+ 				   indirect_branch_table_label[option],
+ 				   indirect_branch_table_label_no[option]++);
+       ASM_OUTPUT_LABEL (asm_out_file, label);
+     }
+ 
+   if (return_addr_regno != INVALID_REGNUM)
+     {
+       gcc_assert (comparison_operator == NULL_RTX);
+       fprintf (asm_out_file, " \tbrasl\t%%r%d,", return_addr_regno);
+     }
+   else
+     {
+       fputs (" \tjg", asm_out_file);
+       if (comparison_operator != NULL_RTX)
+ 	print_operand (asm_out_file, comparison_operator, 'C');
+ 
+       fputs ("\t", asm_out_file);
+     }
+ 
+   if (TARGET_CPU_Z10)
+     fprintf (asm_out_file,
+ 	     TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL "\n",
+ 	     regno);
+   else
+     fprintf (asm_out_file,
+ 	     TARGET_INDIRECT_BRANCH_THUNK_NAME_EX "\n",
+ 	     INDIRECT_BRANCH_THUNK_REGNUM, regno);
+ 
+   if ((option == s390_opt_indirect_branch_jump
+        && cfun->machine->indirect_branch_jump == indirect_branch_thunk)
+       || (option == s390_opt_indirect_branch_call
+ 	  && cfun->machine->indirect_branch_call == indirect_branch_thunk)
+       || (option == s390_opt_function_return_reg
+ 	  && cfun->machine->function_return_reg == indirect_branch_thunk)
+       || (option == s390_opt_function_return_mem
+ 	  && cfun->machine->function_return_mem == indirect_branch_thunk))
+     {
+       if (TARGET_CPU_Z10)
+ 	indirect_branch_z10thunk_mask |= (1 << regno);
+       else
+ 	indirect_branch_prez10thunk_mask |= (1 << regno);
+     }
+ }
+ 
+ /* Output an inline thunk for indirect jumps.  EXECUTE_TARGET can
+    either be an address register or a label pointing to the location
+    of the jump instruction.  */
+ 
+ void
+ s390_indirect_branch_via_inline_thunk (rtx execute_target)
+ {
+   if (TARGET_INDIRECT_BRANCH_TABLE)
+     {
+       char label[32];
+ 
+       ASM_GENERATE_INTERNAL_LABEL (label,
+ 				   indirect_branch_table_label[s390_opt_indirect_branch_jump],
+ 				   indirect_branch_table_label_no[s390_opt_indirect_branch_jump]++);
+       ASM_OUTPUT_LABEL (asm_out_file, label);
+     }
+ 
+   if (!TARGET_ZARCH)
+     fputs ("\t.machinemode zarch\n", asm_out_file);
+ 
+   if (REG_P (execute_target))
+     fprintf (asm_out_file, "\tex\t%%r0,0(%%r%d)\n", REGNO (execute_target));
+   else
+     output_asm_insn ("exrl\t%%r0,%0", &execute_target);
+ 
+   if (!TARGET_ZARCH)
+     fputs ("\t.machinemode esa\n", asm_out_file);
+ 
+   fputs ("0:\tj\t0b\n", asm_out_file);
+ }
+ 
  static bool
  s390_valid_pointer_mode (machine_mode mode)
  {
*************** s390_function_ok_for_sibcall (tree decl,
*** 12827,12832 ****
--- 12965,12978 ----
    if (!TARGET_64BIT && flag_pic && decl && !targetm.binds_local_p (decl))
      return false;
  
+   /* The thunks for indirect branches require r1 if no exrl is
+      available.  r1 might not be available when doing a sibling
+      call.  */
+   if (TARGET_INDIRECT_BRANCH_NOBP_CALL
+       && !TARGET_CPU_Z10
+       && !decl)
+     return false;
+ 
    /* Register 6 on s390 is available as an argument register but unfortunately
       "caller saved". This makes functions needing this register for arguments
       not suitable for sibcalls.  */
*************** s390_emit_call (rtx addr_location, rtx t
*** 12860,12868 ****
  {
    bool plt_call = false;
    rtx_insn *insn;
!   rtx call;
!   rtx clobber;
!   rtvec vec;
  
    /* Direct function calls need special treatment.  */
    if (GET_CODE (addr_location) == SYMBOL_REF)
--- 13006,13018 ----
  {
    bool plt_call = false;
    rtx_insn *insn;
!   rtx vec[4] = { NULL_RTX };
!   int elts = 0;
!   rtx *call = &vec[0];
!   rtx *clobber_ret_reg = &vec[1];
!   rtx *use = &vec[2];
!   rtx *clobber_thunk_reg = &vec[3];
!   int i;
  
    /* Direct function calls need special treatment.  */
    if (GET_CODE (addr_location) == SYMBOL_REF)
*************** s390_emit_call (rtx addr_location, rtx t
*** 12914,12939 ****
        addr_location = gen_rtx_REG (Pmode, SIBCALL_REGNUM);
      }
  
    addr_location = gen_rtx_MEM (QImode, addr_location);
!   call = gen_rtx_CALL (VOIDmode, addr_location, const0_rtx);
  
    if (result_reg != NULL_RTX)
!     call = gen_rtx_SET (result_reg, call);
  
    if (retaddr_reg != NULL_RTX)
      {
!       clobber = gen_rtx_CLOBBER (VOIDmode, retaddr_reg);
  
        if (tls_call != NULL_RTX)
! 	vec = gen_rtvec (3, call, clobber,
! 			 gen_rtx_USE (VOIDmode, tls_call));
!       else
! 	vec = gen_rtvec (2, call, clobber);
  
!       call = gen_rtx_PARALLEL (VOIDmode, vec);
      }
  
!   insn = emit_call_insn (call);
  
    /* 31-bit PLT stubs and tls calls use the GOT register implicitly.  */
    if ((!TARGET_64BIT && plt_call) || tls_call != NULL_RTX)
--- 13064,13121 ----
        addr_location = gen_rtx_REG (Pmode, SIBCALL_REGNUM);
      }
  
+   if (TARGET_INDIRECT_BRANCH_NOBP_CALL
+       && GET_CODE (addr_location) != SYMBOL_REF
+       && !plt_call)
+     {
+       /* Indirect branch thunks require the target to be a single GPR.  */
+       addr_location = force_reg (Pmode, addr_location);
+ 
+       /* Without exrl the indirect branch thunks need an additional
+ 	 register for larl;ex */
+       if (!TARGET_CPU_Z10)
+ 	{
+ 	  *clobber_thunk_reg = gen_rtx_REG (Pmode, INDIRECT_BRANCH_THUNK_REGNUM);
+ 	  *clobber_thunk_reg = gen_rtx_CLOBBER (VOIDmode, *clobber_thunk_reg);
+ 	}
+     }
+ 
    addr_location = gen_rtx_MEM (QImode, addr_location);
!   *call = gen_rtx_CALL (VOIDmode, addr_location, const0_rtx);
  
    if (result_reg != NULL_RTX)
!     *call = gen_rtx_SET (result_reg, *call);
  
    if (retaddr_reg != NULL_RTX)
      {
!       *clobber_ret_reg = gen_rtx_CLOBBER (VOIDmode, retaddr_reg);
  
        if (tls_call != NULL_RTX)
! 	*use = gen_rtx_USE (VOIDmode, tls_call);
!     }
  
! 
!   for (i = 0; i < 4; i++)
!     if (vec[i] != NULL_RTX)
!       elts++;
! 
!   if (elts > 1)
!     {
!       rtvec v;
!       int e = 0;
! 
!       v = rtvec_alloc (elts);
!       for (i = 0; i < 4; i++)
! 	if (vec[i] != NULL_RTX)
! 	  {
! 	    RTVEC_ELT (v, e) = vec[i];
! 	    e++;
! 	  }
! 
!       *call = gen_rtx_PARALLEL (VOIDmode, v);
      }
  
!   insn = emit_call_insn (*call);
  
    /* 31-bit PLT stubs and tls calls use the GOT register implicitly.  */
    if ((!TARGET_64BIT && plt_call) || tls_call != NULL_RTX)
*************** s390_reorg (void)
*** 13563,13569 ****
  	  target = emit_label (XEXP (label, 0));
  	  INSN_ADDRESSES_NEW (target, -1);
  
! 	  target = emit_insn (s390_execute_target (insn));
  	  INSN_ADDRESSES_NEW (target, -1);
  	}
      }
--- 13745,13760 ----
  	  target = emit_label (XEXP (label, 0));
  	  INSN_ADDRESSES_NEW (target, -1);
  
! 	  if (JUMP_P (insn))
! 	    {
! 	      target = emit_jump_insn (s390_execute_target (insn));
! 	      /* This is important in order to keep a table jump
! 		 pointing at the jump table label.  Only this makes it
! 		 being recognized as table jump.  */
! 	      JUMP_LABEL (target) = JUMP_LABEL (insn);
! 	    }
! 	  else
! 	    target = emit_insn (s390_execute_target (insn));
  	  INSN_ADDRESSES_NEW (target, -1);
  	}
      }
*************** s390_option_override_internal (bool main
*** 14213,14218 ****
--- 14404,14445 ----
    if (TARGET_64BIT && !TARGET_ZARCH_P (opts->x_target_flags))
      error ("64-bit ABI not supported in ESA/390 mode");
  
+   if (opts->x_s390_indirect_branch == indirect_branch_thunk_inline
+       || opts->x_s390_indirect_branch_call == indirect_branch_thunk_inline
+       || opts->x_s390_function_return == indirect_branch_thunk_inline
+       || opts->x_s390_function_return_reg == indirect_branch_thunk_inline
+       || opts->x_s390_function_return_mem == indirect_branch_thunk_inline)
+     error ("thunk-inline is only supported with -mindirect-branch-jump");
+ 
+   if (opts->x_s390_indirect_branch != indirect_branch_keep)
+     {
+       if (!opts_set->x_s390_indirect_branch_call)
+ 	opts->x_s390_indirect_branch_call = opts->x_s390_indirect_branch;
+ 
+       if (!opts_set->x_s390_indirect_branch_jump)
+ 	opts->x_s390_indirect_branch_jump = opts->x_s390_indirect_branch;
+     }
+ 
+   if (opts->x_s390_function_return != indirect_branch_keep)
+     {
+       if (!opts_set->x_s390_function_return_reg)
+ 	opts->x_s390_function_return_reg = opts->x_s390_function_return;
+ 
+       if (!opts_set->x_s390_function_return_mem)
+ 	opts->x_s390_function_return_mem = opts->x_s390_function_return;
+     }
+ 
+   if (!TARGET_CPU_ZARCH)
+     {
+       if (opts->x_s390_indirect_branch_call != indirect_branch_keep
+ 	  || opts->x_s390_indirect_branch_jump != indirect_branch_keep)
+ 	error ("-mindirect-branch* options require -march=z900 or higher");
+       if (opts->x_s390_function_return_reg != indirect_branch_keep
+ 	  || opts->x_s390_function_return_mem != indirect_branch_keep)
+ 	error ("-mfunction-return* options require -march=z900 or higher");
+     }
+ 
+ 
    /* Enable hardware transactions if available and not explicitly
       disabled by user.  E.g. with -m31 -march=zEC12 -mzarch */
    if (!TARGET_OPT_HTM_P (opts_set->x_target_flags))
*************** s390_valid_target_attribute_p (tree fnde
*** 14777,14782 ****
--- 15004,15082 ----
    return ret;
  }
  
+ /* Set VAL to correct enum value according to the indirect-branch or
+    function-return attribute in ATTR.  */
+ 
+ static inline void
+ s390_indirect_branch_attrvalue (tree attr, enum indirect_branch *val)
+ {
+   const char *str = TREE_STRING_POINTER (TREE_VALUE (TREE_VALUE (attr)));
+   if (strcmp (str, "keep") == 0)
+     *val = indirect_branch_keep;
+   else if (strcmp (str, "thunk") == 0)
+     *val = indirect_branch_thunk;
+   else if (strcmp (str, "thunk-inline") == 0)
+     *val = indirect_branch_thunk_inline;
+   else if (strcmp (str, "thunk-extern") == 0)
+     *val = indirect_branch_thunk_extern;
+ }
+ 
+ /* Memorize the setting for -mindirect-branch* and -mfunction-return*
+    from either the cmdline or the function attributes in
+    cfun->machine.  */
+ 
+ static void
+ s390_indirect_branch_settings (tree fndecl)
+ {
+   tree attr;
+ 
+   if (!fndecl)
+     return;
+ 
+   /* Initialize with the cmdline options and let the attributes
+      override it.  */
+   cfun->machine->indirect_branch_jump = s390_indirect_branch_jump;
+   cfun->machine->indirect_branch_call = s390_indirect_branch_call;
+ 
+   cfun->machine->function_return_reg = s390_function_return_reg;
+   cfun->machine->function_return_mem = s390_function_return_mem;
+ 
+   if ((attr = lookup_attribute ("indirect_branch",
+ 				DECL_ATTRIBUTES (fndecl))))
+     {
+       s390_indirect_branch_attrvalue (attr,
+ 				      &cfun->machine->indirect_branch_jump);
+       s390_indirect_branch_attrvalue (attr,
+ 				      &cfun->machine->indirect_branch_call);
+     }
+ 
+   if ((attr = lookup_attribute ("indirect_branch_jump",
+ 				DECL_ATTRIBUTES (fndecl))))
+     s390_indirect_branch_attrvalue (attr, &cfun->machine->indirect_branch_jump);
+ 
+   if ((attr = lookup_attribute ("indirect_branch_call",
+ 				DECL_ATTRIBUTES (fndecl))))
+     s390_indirect_branch_attrvalue (attr, &cfun->machine->indirect_branch_call);
+ 
+   if ((attr = lookup_attribute ("function_return",
+ 				DECL_ATTRIBUTES (fndecl))))
+     {
+       s390_indirect_branch_attrvalue (attr,
+ 				      &cfun->machine->function_return_reg);
+       s390_indirect_branch_attrvalue (attr,
+ 				      &cfun->machine->function_return_mem);
+     }
+ 
+   if ((attr = lookup_attribute ("function_return_reg",
+ 				DECL_ATTRIBUTES (fndecl))))
+     s390_indirect_branch_attrvalue (attr, &cfun->machine->function_return_reg);
+ 
+   if ((attr = lookup_attribute ("function_return_mem",
+ 				DECL_ATTRIBUTES (fndecl))))
+     s390_indirect_branch_attrvalue (attr, &cfun->machine->function_return_mem);
+ }
+ 
+ 
  /* Restore targets globals from NEW_TREE and invalidate s390_previous_fndecl
     cache.  */
  
*************** s390_set_current_function (tree fndecl)
*** 14803,14809 ****
       several times in the course of compiling a function, and we don't want to
       slow things down too much or call target_reinit when it isn't safe.  */
    if (fndecl == s390_previous_fndecl)
!     return;
  
    tree old_tree;
    if (s390_previous_fndecl == NULL_TREE)
--- 15103,15112 ----
       several times in the course of compiling a function, and we don't want to
       slow things down too much or call target_reinit when it isn't safe.  */
    if (fndecl == s390_previous_fndecl)
!     {
!       s390_indirect_branch_settings (fndecl);
!       return;
!     }
  
    tree old_tree;
    if (s390_previous_fndecl == NULL_TREE)
*************** s390_set_current_function (tree fndecl)
*** 14827,14832 ****
--- 15130,15137 ----
    if (old_tree != new_tree)
      s390_activate_target_options (new_tree);
    s390_previous_fndecl = fndecl;
+ 
+   s390_indirect_branch_settings (fndecl);
  }
  #endif
  
*************** s390_invalid_binary_op (int op ATTRIBUTE
*** 15062,15067 ****
--- 15367,15552 ----
    return NULL;
  }
  
+ #ifdef HAVE_GAS_HIDDEN
+ # define USE_HIDDEN_LINKONCE 1
+ #else
+ # define USE_HIDDEN_LINKONCE 0
+ #endif
+ 
+ /* Output an indirect branch trampoline for target register REGNO.  */
+ 
+ static void
+ s390_output_indirect_thunk_function (unsigned int regno, bool z10_p)
+ {
+   tree decl;
+   char thunk_label[32];
+   int i;
+ 
+   if (z10_p)
+     sprintf (thunk_label, TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL, regno);
+   else
+     sprintf (thunk_label, TARGET_INDIRECT_BRANCH_THUNK_NAME_EX,
+ 	     INDIRECT_BRANCH_THUNK_REGNUM, regno);
+ 
+   decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
+ 		     get_identifier (thunk_label),
+ 		     build_function_type_list (void_type_node, NULL_TREE));
+   DECL_RESULT (decl) = build_decl (BUILTINS_LOCATION, RESULT_DECL,
+ 				   NULL_TREE, void_type_node);
+   TREE_PUBLIC (decl) = 1;
+   TREE_STATIC (decl) = 1;
+   DECL_IGNORED_P (decl) = 1;
+ 
+   if (USE_HIDDEN_LINKONCE)
+     {
+       cgraph_node::create (decl)->set_comdat_group (DECL_ASSEMBLER_NAME (decl));
+ 
+       targetm.asm_out.unique_section (decl, 0);
+       switch_to_section (get_named_section (decl, NULL, 0));
+ 
+       targetm.asm_out.globalize_label (asm_out_file, thunk_label);
+       fputs ("\t.hidden\t", asm_out_file);
+       assemble_name (asm_out_file, thunk_label);
+       putc ('\n', asm_out_file);
+       ASM_DECLARE_FUNCTION_NAME (asm_out_file, thunk_label, decl);
+     }
+   else
+     {
+       switch_to_section (text_section);
+       ASM_OUTPUT_LABEL (asm_out_file, thunk_label);
+     }
+ 
+   DECL_INITIAL (decl) = make_node (BLOCK);
+   current_function_decl = decl;
+   allocate_struct_function (decl, false);
+   init_function_start (decl);
+   cfun->is_thunk = true;
+   first_function_block_is_cold = false;
+   final_start_function (emit_barrier (), asm_out_file, 1);
+ 
+   /* This makes CFI at least usable for indirect jumps.
+ 
+      Stopping in the thunk: backtrace will point to the thunk target
+      is if it was interrupted by a signal.  For a call this means that
+      the call chain will be: caller->callee->thunk   */
+   if (flag_asynchronous_unwind_tables && flag_dwarf2_cfi_asm)
+     {
+       fputs ("\t.cfi_signal_frame\n", asm_out_file);
+       fprintf (asm_out_file, "\t.cfi_return_column %d\n", regno);
+       for (i = 0; i < FPR15_REGNUM; i++)
+ 	fprintf (asm_out_file, "\t.cfi_same_value %s\n", reg_names[i]);
+     }
+ 
+   if (z10_p)
+     {
+       /* exrl  0,1f  */
+ 
+       /* We generate a thunk for z10 compiled code although z10 is
+ 	 currently not enabled.  Tell the assembler to accept the
+ 	 instruction.  */
+       if (!TARGET_CPU_Z10)
+ 	{
+ 	  fputs ("\t.machine push\n", asm_out_file);
+ 	  fputs ("\t.machine z10\n", asm_out_file);
+ 	}
+       /* We use exrl even if -mzarch hasn't been specified on the
+ 	 command line so we have to tell the assembler to accept
+ 	 it.  */
+       if (!TARGET_ZARCH)
+ 	fputs ("\t.machinemode zarch\n", asm_out_file);
+ 
+       fputs ("\texrl\t0,1f\n", asm_out_file);
+ 
+       if (!TARGET_ZARCH)
+ 	fputs ("\t.machinemode esa\n", asm_out_file);
+ 
+       if (!TARGET_CPU_Z10)
+ 	fputs ("\t.machine pop\n", asm_out_file);
+     }
+   else if (TARGET_CPU_ZARCH)
+     {
+       /* larl %r1,1f  */
+       fprintf (asm_out_file, "\tlarl\t%%r%d,1f\n",
+ 	       INDIRECT_BRANCH_THUNK_REGNUM);
+ 
+       /* ex 0,0(%r1)  */
+       fprintf (asm_out_file, "\tex\t0,0(%%r%d)\n",
+ 	       INDIRECT_BRANCH_THUNK_REGNUM);
+     }
+   else
+     gcc_unreachable ();
+ 
+   /* 0:    j 0b  */
+   fputs ("0:\tj\t0b\n", asm_out_file);
+ 
+   /* 1:    br <regno>  */
+   fprintf (asm_out_file, "1:\tbr\t%%r%d\n", regno);
+ 
+   final_end_function ();
+   init_insn_lengths ();
+   free_after_compilation (cfun);
+   set_cfun (NULL);
+   current_function_decl = NULL;
+ }
+ 
+ /* Implement the asm.code_end target hook.  */
+ 
+ static void
+ s390_code_end (void)
+ {
+   int i;
+ 
+   for (i = 1; i < 16; i++)
+     {
+       if (indirect_branch_z10thunk_mask & (1 << i))
+ 	s390_output_indirect_thunk_function (i, true);
+ 
+       if (indirect_branch_prez10thunk_mask & (1 << i))
+ 	s390_output_indirect_thunk_function (i, false);
+     }
+ 
+   if (TARGET_INDIRECT_BRANCH_TABLE)
+     {
+       int o;
+       int i;
+ 
+       for (o = 0; o < INDIRECT_BRANCH_NUM_OPTIONS; o++)
+ 	{
+ 	  if (indirect_branch_table_label_no[o] == 0)
+ 	    continue;
+ 
+ 	  switch_to_section (get_section (indirect_branch_table_name[o],
+ 					  0,
+ 					  NULL_TREE));
+ 	  for (i = 0; i < indirect_branch_table_label_no[o]; i++)
+ 	    {
+ 	      char label_start[32];
+ 
+ 	      ASM_GENERATE_INTERNAL_LABEL (label_start,
+ 					   indirect_branch_table_label[o], i);
+ 
+ 	      fputs ("\t.long\t", asm_out_file);
+ 	      assemble_name_raw (asm_out_file, label_start);
+ 	      fputs ("-.\n", asm_out_file);
+ 	    }
+ 	  switch_to_section (current_function_section ());
+ 	}
+     }
+ }
+ 
+ /* Implement the TARGET_CASE_VALUES_THRESHOLD target hook.  */
+ 
+ unsigned int
+ s390_case_values_threshold (void)
+ {
+   /* Disabling branch prediction for indirect jumps makes jump tables
+      much more expensive.  */
+   if (TARGET_INDIRECT_BRANCH_NOBP_JUMP)
+     return 20;
+ 
+   return default_case_values_threshold ();
+ }
+ 
  /* Initialize GCC target structure.  */
  
  #undef  TARGET_ASM_ALIGNED_HI_OP
*************** s390_invalid_binary_op (int op ATTRIBUTE
*** 15301,15306 ****
--- 15786,15797 ----
  #undef TARGET_OPTION_RESTORE
  #define TARGET_OPTION_RESTORE s390_function_specific_restore
  
+ #undef TARGET_ASM_CODE_END
+ #define TARGET_ASM_CODE_END s390_code_end
+ 
+ #undef TARGET_CASE_VALUES_THRESHOLD
+ #define TARGET_CASE_VALUES_THRESHOLD s390_case_values_threshold
+ 
  struct gcc_target targetm = TARGET_INITIALIZER;
  
  #include "gt-s390.h"
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390.h gcc-6.5.0/gcc/config/s390/s390.h
*** gcc-6.4.0/gcc/config/s390/s390.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/s390/s390.h	Wed Mar  7 13:10:35 2018
*************** extern const int processor_flags_table[]
*** 1094,1097 ****
--- 1094,1217 ----
      s390_register_target_pragmas ();		\
    } while (0)
  
+ #ifndef USED_FOR_TARGET
+ /* The following structure is embedded in the machine
+    specific part of struct function.  */
+ 
+ struct GTY (()) s390_frame_layout
+ {
+   /* Offset within stack frame.  */
+   HOST_WIDE_INT gprs_offset;
+   HOST_WIDE_INT f0_offset;
+   HOST_WIDE_INT f4_offset;
+   HOST_WIDE_INT f8_offset;
+   HOST_WIDE_INT backchain_offset;
+ 
+   /* Number of first and last gpr where slots in the register
+      save area are reserved for.  */
+   int first_save_gpr_slot;
+   int last_save_gpr_slot;
+ 
+   /* Location (FP register number) where GPRs (r0-r15) should
+      be saved to.
+       0 - does not need to be saved at all
+      -1 - stack slot  */
+ #define SAVE_SLOT_NONE   0
+ #define SAVE_SLOT_STACK -1
+   signed char gpr_save_slots[16];
+ 
+   /* Number of first and last gpr to be saved, restored.  */
+   int first_save_gpr;
+   int first_restore_gpr;
+   int last_save_gpr;
+   int last_restore_gpr;
+ 
+   /* Bits standing for floating point registers. Set, if the
+      respective register has to be saved. Starting with reg 16 (f0)
+      at the rightmost bit.
+      Bit 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0
+      fpr 15 13 11  9 14 12 10  8  7  5  3  1  6  4  2  0
+      reg 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16  */
+   unsigned int fpr_bitmap;
+ 
+   /* Number of floating point registers f8-f15 which must be saved.  */
+   int high_fprs;
+ 
+   /* Set if return address needs to be saved.
+      This flag is set by s390_return_addr_rtx if it could not use
+      the initial value of r14 and therefore depends on r14 saved
+      to the stack.  */
+   bool save_return_addr_p;
+ 
+   /* Size of stack frame.  */
+   HOST_WIDE_INT frame_size;
+ };
+ 
+ 
+ /* Define the structure for the machine field in struct function.  */
+ 
+ struct GTY(()) machine_function
+ {
+   struct s390_frame_layout frame_layout;
+ 
+   /* Literal pool base register.  */
+   rtx base_reg;
+ 
+   /* True if we may need to perform branch splitting.  */
+   bool split_branches_pending_p;
+ 
+   bool has_landing_pad_p;
+ 
+   /* True if the current function may contain a tbegin clobbering
+      FPRs.  */
+   bool tbegin_p;
+ 
+   /* For -fsplit-stack support: A stack local which holds a pointer to
+      the stack arguments for a function with a variable number of
+      arguments.  This is set at the start of the function and is used
+      to initialize the overflow_arg_area field of the va_list
+      structure.  */
+   rtx split_stack_varargs_pointer;
+ 
+   enum indirect_branch indirect_branch_jump;
+   enum indirect_branch indirect_branch_call;
+ 
+   enum indirect_branch function_return_mem;
+   enum indirect_branch function_return_reg;
+ };
+ #endif
+ 
+ #define TARGET_INDIRECT_BRANCH_NOBP_RET_OPTION				\
+   (cfun->machine->function_return_reg != indirect_branch_keep		\
+    || cfun->machine->function_return_mem != indirect_branch_keep)
+ 
+ #define TARGET_INDIRECT_BRANCH_NOBP_RET					\
+   ((cfun->machine->function_return_reg != indirect_branch_keep		\
+     && !s390_return_addr_from_memory ())				\
+    || (cfun->machine->function_return_mem != indirect_branch_keep	\
+        && s390_return_addr_from_memory ()))
+ 
+ #define TARGET_INDIRECT_BRANCH_NOBP_JUMP				\
+   (cfun->machine->indirect_branch_jump != indirect_branch_keep)
+ 
+ #define TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK				\
+   (cfun->machine->indirect_branch_jump == indirect_branch_thunk		\
+    || cfun->machine->indirect_branch_jump == indirect_branch_thunk_extern)
+ 
+ #define TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK			\
+   (cfun->machine->indirect_branch_jump == indirect_branch_thunk_inline)
+ 
+ #define TARGET_INDIRECT_BRANCH_NOBP_CALL			\
+   (cfun->machine->indirect_branch_call != indirect_branch_keep)
+ 
+ #ifndef TARGET_DEFAULT_INDIRECT_BRANCH_TABLE
+ #define TARGET_DEFAULT_INDIRECT_BRANCH_TABLE 0
+ #endif
+ 
+ #define TARGET_INDIRECT_BRANCH_THUNK_NAME_EXRL "__s390_indirect_jump_r%d"
+ #define TARGET_INDIRECT_BRANCH_THUNK_NAME_EX   "__s390_indirect_jump_r%duse_r%d"
+ 
+ #define TARGET_INDIRECT_BRANCH_TABLE s390_indirect_branch_table
+ 
+ 
  #endif /* S390_H */
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390.md gcc-6.5.0/gcc/config/s390/s390.md
*** gcc-6.4.0/gcc/config/s390/s390.md	Fri Dec  2 08:47:07 2016
--- gcc-6.5.0/gcc/config/s390/s390.md	Wed Mar  7 13:10:35 2018
***************
*** 89,94 ****
--- 89,95 ----
     UNSPEC_LTREF
     UNSPEC_INSN
     UNSPEC_EXECUTE
+    UNSPEC_EXECUTE_JUMP
  
     ; Atomic Support
     UNSPEC_MB
***************
*** 292,297 ****
--- 293,300 ----
    [
     ; Sibling call register.
     (SIBCALL_REGNUM		 1)
+    ; A call-clobbered reg which can be used in indirect branch thunks
+    (INDIRECT_BRANCH_THUNK_REGNUM 1)
     ; Literal pool base register.
     (BASE_REGNUM			13)
     ; Return address register.
***************
*** 461,467 ****
                           z196_cracked"
               (const_string "none"))
  
! (define_attr "mnemonic" "bcr_flush,unknown" (const_string "unknown"))
  
  ;; Length in bytes.
  
--- 464,473 ----
                           z196_cracked"
               (const_string "none"))
  
! ; mnemonics which only get defined through if_then_else currently
! ; don't get added to the list values automatically and hence need to
! ; be listed here.
! (define_attr "mnemonic" "b,br,bas,bc,bcr,bcr_flush,unknown" (const_string "unknown"))
  
  ;; Length in bytes.
  
***************
*** 8631,8637 ****
            (match_operator 1 "s390_comparison" [(reg CC_REGNUM) (const_int 0)])
            (match_operand 0 "address_operand" "ZQZR")
            (pc)))]
!   ""
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "b%C1r\t%0";
--- 8637,8643 ----
            (match_operator 1 "s390_comparison" [(reg CC_REGNUM) (const_int 0)])
            (match_operand 0 "address_operand" "ZQZR")
            (pc)))]
!   "!TARGET_INDIRECT_BRANCH_NOBP_JUMP"
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "b%C1r\t%0";
***************
*** 8641,8646 ****
--- 8647,8655 ----
    [(set (attr "op_type")
          (if_then_else (match_operand 0 "register_operand" "")
                        (const_string "RR") (const_string "RX")))
+    (set (attr "mnemonic")
+         (if_then_else (match_operand 0 "register_operand" "")
+                       (const_string "bcr") (const_string "bc")))
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
***************
*** 8652,8659 ****
            (ANY_RETURN)
            (pc)))]
    "s390_can_use_<code>_insn ()"
!   "b%C0r\t%%r14"
!   [(set_attr "op_type" "RR")
     (set_attr "type"  "jsr")
     (set_attr "atype" "agen")])
  
--- 8661,8686 ----
            (ANY_RETURN)
            (pc)))]
    "s390_can_use_<code>_insn ()"
! {
!   if (TARGET_INDIRECT_BRANCH_NOBP_RET)
!     {
!       s390_indirect_branch_via_thunk (RETURN_REGNUM,
! 				      INVALID_REGNUM,
! 				      operands[0],
! 				      s390_indirect_branch_type_return);
!       return "";
!     }
!   else
!     return "b%C0r\t%%r14";
! }
!   [(set (attr "op_type")
! 	(if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
! 		      (const_string "RIL")
! 		      (const_string "RR")))
!    (set (attr "mnemonic")
! 	(if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
! 		      (const_string "brcl")
! 		      (const_string "bcr")))
     (set_attr "type"  "jsr")
     (set_attr "atype" "agen")])
  
***************
*** 8706,8712 ****
            (match_operator 1 "s390_comparison" [(reg CC_REGNUM) (const_int 0)])
            (pc)
            (match_operand 0 "address_operand" "ZQZR")))]
!   ""
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "b%D1r\t%0";
--- 8733,8739 ----
            (match_operator 1 "s390_comparison" [(reg CC_REGNUM) (const_int 0)])
            (pc)
            (match_operand 0 "address_operand" "ZQZR")))]
!   "!TARGET_INDIRECT_BRANCH_NOBP_JUMP"
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "b%D1r\t%0";
***************
*** 8716,8721 ****
--- 8743,8751 ----
    [(set (attr "op_type")
          (if_then_else (match_operand 0 "register_operand" "")
                        (const_string "RR") (const_string "RX")))
+    (set (attr "mnemonic")
+         (if_then_else (match_operand 0 "register_operand" "")
+                       (const_string "bcr") (const_string "bc")))
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
***************
*** 9208,9237 ****
  ; indirect-jump instruction pattern(s).
  ;
  
! (define_insn "indirect_jump"
   [(set (pc) (match_operand 0 "address_operand" "ZQZR"))]
    ""
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "br\t%0";
    else
      return "b\t%a0";
  }
!   [(set (attr "op_type")
!         (if_then_else (match_operand 0 "register_operand" "")
!                       (const_string "RR") (const_string "RX")))
!    (set_attr "type"  "branch")
!    (set_attr "atype" "agen")])
  
  ;
  ; casesi instruction pattern(s).
  ;
  
! (define_insn "casesi_jump"
!  [(set (pc) (match_operand 0 "address_operand" "ZQZR"))
!    (use (label_ref (match_operand 1 "" "")))]
    ""
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "br\t%0";
    else
--- 9238,9457 ----
  ; indirect-jump instruction pattern(s).
  ;
  
! (define_expand "indirect_jump"
   [(set (pc) (match_operand 0 "address_operand" "ZQZR"))]
    ""
  {
+   if (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
+     {
+       operands[0] = force_reg (Pmode, operands[0]);
+       if (TARGET_CPU_Z10)
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_indirect_jump_via_thunkdi_z10 (operands[0]));
+ 	  else
+ 	    emit_jump_insn (gen_indirect_jump_via_thunksi_z10 (operands[0]));
+ 	}
+       else
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_indirect_jump_via_thunkdi (operands[0]));
+ 	  else
+ 	    emit_jump_insn (gen_indirect_jump_via_thunksi (operands[0]));
+ 	}
+       DONE;
+     }
+ 
+   if (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
+     {
+       operands[0] = force_reg (Pmode, operands[0]);
+       rtx label_ref = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ());
+       if (TARGET_CPU_Z10)
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_indirect_jump_via_inlinethunkdi_z10 (operands[0],
+ 								     label_ref));
+ 	  else
+ 	    emit_jump_insn (gen_indirect_jump_via_inlinethunksi_z10 (operands[0],
+ 								     label_ref));
+ 	}
+       else
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_indirect_jump_via_inlinethunkdi (operands[0],
+ 								 label_ref,
+ 								 force_reg (Pmode, label_ref)));
+ 	  else
+ 	    emit_jump_insn (gen_indirect_jump_via_inlinethunksi (operands[0],
+ 								 label_ref,
+ 								 force_reg (Pmode, label_ref)));
+ 	}
+       DONE;
+     }
+ })
+ 
+ (define_insn "*indirect_jump"
+   [(set (pc)
+ 	(match_operand 0 "address_operand" "ZR"))]
+  "!TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK"
+ {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "br\t%0";
    else
      return "b\t%a0";
  }
!  [(set (attr "op_type")
!        (if_then_else (match_operand 0 "register_operand" "")
! 		     (const_string "RR") (const_string "RX")))
!   (set (attr "mnemonic")
!        (if_then_else (match_operand 0 "register_operand" "")
! 		     (const_string "br") (const_string "b")))
!   (set_attr "type"  "branch")
!   (set_attr "atype" "agen")])
! 
! (define_insn "indirect_jump_via_thunk<mode>_z10"
!   [(set (pc)
! 	(match_operand:P 0 "register_operand" "a"))]
!  "TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK
!   && TARGET_CPU_Z10"
! {
!   s390_indirect_branch_via_thunk (REGNO (operands[0]),
! 				  INVALID_REGNUM,
! 				  NULL_RTX,
! 				  s390_indirect_branch_type_jump);
!   return "";
! }
!  [(set_attr "op_type"  "RIL")
!   (set_attr "mnemonic" "jg")
!   (set_attr "type"  "branch")
!   (set_attr "atype" "agen")])
! 
! (define_insn "indirect_jump_via_thunk<mode>"
!   [(set (pc)
! 	(match_operand:P 0 "register_operand" " a"))
!    (clobber (reg:P INDIRECT_BRANCH_THUNK_REGNUM))]
!  "TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK
!   && !TARGET_CPU_Z10"
! {
!   s390_indirect_branch_via_thunk (REGNO (operands[0]),
! 				  INVALID_REGNUM,
! 				  NULL_RTX,
! 				  s390_indirect_branch_type_jump);
!   return "";
! }
!  [(set_attr "op_type"  "RIL")
!   (set_attr "mnemonic" "jg")
!   (set_attr "type"  "branch")
!   (set_attr "atype" "agen")])
! 
! 
! ; The label_ref is wrapped into an if_then_else in order to hide it
! ; from mark_jump_label.  Without this the label_ref would become the
! ; ONLY jump target of that jump breaking the control flow graph.
! (define_insn "indirect_jump_via_inlinethunk<mode>_z10"
!   [(unspec [(if_then_else (match_operand:P 1 "larl_operand" "X")
! 			  (const_int 0)
! 			  (const_int 0))
! 	    (const_int 0)] UNSPEC_EXECUTE_JUMP)
!    (set (pc) (match_operand:P 0 "register_operand" "a"))]
!   "TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK
!    && TARGET_CPU_Z10"
! {
!   s390_indirect_branch_via_inline_thunk (operands[1]);
!   return "";
! }
!   [(set_attr "op_type" "RIL")
!    (set_attr "type"    "branch")
!    (set_attr "length"  "10")])
! 
! (define_insn "indirect_jump_via_inlinethunk<mode>"
!   [(unspec [(if_then_else (match_operand:P 1 "larl_operand" "X")
! 			  (const_int 0)
! 			  (const_int 0))
! 	    (match_operand:P 2 "register_operand" "a")] UNSPEC_EXECUTE_JUMP)
!    (set (pc) (match_operand:P 0 "register_operand" "a"))]
!   "TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK
!    && !TARGET_CPU_Z10"
! {
!   s390_indirect_branch_via_inline_thunk (operands[2]);
!   return "";
! }
!   [(set_attr "op_type" "RX")
!    (set_attr "type"    "branch")
!    (set_attr "length"  "8")])
  
  ;
  ; casesi instruction pattern(s).
  ;
  
! (define_expand "casesi_jump"
!   [(parallel
!     [(set (pc) (match_operand 0 "address_operand"))
!      (use (label_ref (match_operand 1 "")))])]
    ""
  {
+   if (TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK)
+     {
+       operands[0] = force_reg (GET_MODE (operands[0]), operands[0]);
+ 
+       if (TARGET_CPU_Z10)
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_casesi_jump_via_thunkdi_z10 (operands[0],
+ 							     operands[1]));
+ 	  else
+ 	    emit_jump_insn (gen_casesi_jump_via_thunksi_z10 (operands[0],
+ 							     operands[1]));
+ 	}
+       else
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_casesi_jump_via_thunkdi (operands[0],
+ 							 operands[1]));
+ 	  else
+ 	    emit_jump_insn (gen_casesi_jump_via_thunksi (operands[0],
+ 							 operands[1]));
+ 	}
+       DONE;
+     }
+ 
+     if (TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK)
+     {
+       operands[0] = force_reg (Pmode, operands[0]);
+       rtx label_ref = gen_rtx_LABEL_REF (VOIDmode, gen_label_rtx ());
+       if (TARGET_CPU_Z10)
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_casesi_jump_via_inlinethunkdi_z10 (operands[0],
+ 								   operands[1],
+ 								   label_ref));
+ 	  else
+ 	    emit_jump_insn (gen_casesi_jump_via_inlinethunksi_z10 (operands[0],
+ 								   operands[1],
+ 								   label_ref));
+ 	}
+       else
+ 	{
+ 	  if (TARGET_64BIT)
+ 	    emit_jump_insn (gen_casesi_jump_via_inlinethunkdi (operands[0],
+ 							       operands[1],
+ 							       label_ref,
+ 							       force_reg (Pmode, label_ref)));
+ 	  else
+ 	    emit_jump_insn (gen_casesi_jump_via_inlinethunksi (operands[0],
+ 							       operands[1],
+ 							       label_ref,
+ 							       force_reg (Pmode, label_ref)));
+ 	}
+       DONE;
+     }
+ })
+ 
+ (define_insn "*casesi_jump"
+  [(set (pc) (match_operand 0 "address_operand" "ZR"))
+   (use (label_ref (match_operand 1 "" "")))]
+  "!TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK"
+ {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "br\t%0";
    else
***************
*** 9240,9248 ****
--- 9460,9544 ----
    [(set (attr "op_type")
          (if_then_else (match_operand 0 "register_operand" "")
                        (const_string "RR") (const_string "RX")))
+    (set (attr "mnemonic")
+         (if_then_else (match_operand 0 "register_operand" "")
+                       (const_string "br") (const_string "b")))
+    (set_attr "type"  "branch")
+    (set_attr "atype" "agen")])
+ 
+ (define_insn "casesi_jump_via_thunk<mode>_z10"
+  [(set (pc) (match_operand:P 0 "register_operand" "a"))
+   (use (label_ref (match_operand 1 "" "")))]
+  "TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK
+   && TARGET_CPU_Z10"
+ {
+   s390_indirect_branch_via_thunk (REGNO (operands[0]),
+ 				  INVALID_REGNUM,
+ 				  NULL_RTX,
+ 				  s390_indirect_branch_type_jump);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "mnemonic" "jg")
+    (set_attr "type"  "branch")
+    (set_attr "atype" "agen")])
+ 
+ (define_insn "casesi_jump_via_thunk<mode>"
+  [(set (pc) (match_operand:P 0 "register_operand" "a"))
+   (use (label_ref (match_operand 1 "" "")))
+   (clobber (reg:P INDIRECT_BRANCH_THUNK_REGNUM))]
+  "TARGET_INDIRECT_BRANCH_NOBP_JUMP_THUNK
+   && !TARGET_CPU_Z10"
+ {
+   s390_indirect_branch_via_thunk (REGNO (operands[0]),
+ 				  INVALID_REGNUM,
+ 				  NULL_RTX,
+ 				  s390_indirect_branch_type_jump);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "mnemonic" "jg")
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
+ 
+ ; The label_ref is wrapped into an if_then_else in order to hide it
+ ; from mark_jump_label.  Without this the label_ref would become the
+ ; ONLY jump target of that jump breaking the control flow graph.
+ (define_insn "casesi_jump_via_inlinethunk<mode>_z10"
+   [(unspec [(if_then_else (match_operand:P 2 "larl_operand" "X")
+ 			  (const_int 0)
+ 			  (const_int 0))
+ 	    (const_int 0)] UNSPEC_EXECUTE_JUMP)
+    (set (pc) (match_operand:P 0 "register_operand" "a"))
+    (use (label_ref (match_operand 1 "" "")))]
+   "TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK
+    && TARGET_CPU_Z10"
+ {
+   s390_indirect_branch_via_inline_thunk (operands[2]);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "type"    "cs")
+    (set_attr "length"  "10")])
+ 
+ (define_insn "casesi_jump_via_inlinethunk<mode>"
+   [(unspec [(if_then_else (match_operand:P 2 "larl_operand" "X")
+ 			  (const_int 0)
+ 			  (const_int 0))
+ 	    (match_operand:P 3 "register_operand" "a")] UNSPEC_EXECUTE_JUMP)
+    (set (pc) (match_operand:P 0 "register_operand" "a"))
+    (use (label_ref (match_operand 1 "" "")))]
+   "TARGET_INDIRECT_BRANCH_NOBP_JUMP_INLINE_THUNK
+    && !TARGET_CPU_Z10"
+ {
+   s390_indirect_branch_via_inline_thunk (operands[3]);
+   return "";
+ }
+   [(set_attr "op_type" "RX")
+    (set_attr "type"    "cs")
+    (set_attr "length"  "8")])
+ 
  (define_expand "casesi"
    [(match_operand:SI 0 "general_operand" "")
     (match_operand:SI 1 "general_operand" "")
***************
*** 9347,9354 ****
           (match_operand 0 "const_int_operand" "n"))]
    "SIBLING_CALL_P (insn)
     && GET_MODE (XEXP (XEXP (PATTERN (insn), 0), 0)) == Pmode"
!   "br\t%%r1"
!   [(set_attr "op_type" "RR")
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
--- 9643,9669 ----
           (match_operand 0 "const_int_operand" "n"))]
    "SIBLING_CALL_P (insn)
     && GET_MODE (XEXP (XEXP (PATTERN (insn), 0), 0)) == Pmode"
! {
!   if (TARGET_INDIRECT_BRANCH_NOBP_CALL)
!     {
!       gcc_assert (TARGET_CPU_Z10);
!       s390_indirect_branch_via_thunk (SIBCALL_REGNUM,
! 				      INVALID_REGNUM,
! 				      NULL_RTX,
! 				      s390_indirect_branch_type_call);
!       return "";
!     }
!   else
!     return "br\t%%r1";
! }
!  [(set (attr "op_type")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_CALL")
! 		     (const_string "RIL")
! 		     (const_string "RR")))
!   (set (attr "mnemonic")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_CALL")
! 		     (const_string "jg")
! 		     (const_string "br")))
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
***************
*** 9388,9395 ****
  	      (match_operand 1 "const_int_operand" "n")))]
    "SIBLING_CALL_P (insn)
     && GET_MODE (XEXP (XEXP (XEXP (PATTERN (insn), 1), 0), 0)) == Pmode"
!   "br\t%%r1"
!   [(set_attr "op_type" "RR")
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
--- 9703,9729 ----
  	      (match_operand 1 "const_int_operand" "n")))]
    "SIBLING_CALL_P (insn)
     && GET_MODE (XEXP (XEXP (XEXP (PATTERN (insn), 1), 0), 0)) == Pmode"
! {
!   if (TARGET_INDIRECT_BRANCH_NOBP_CALL)
!     {
!       gcc_assert (TARGET_CPU_Z10);
!       s390_indirect_branch_via_thunk (SIBCALL_REGNUM,
! 				      INVALID_REGNUM,
! 				      NULL_RTX,
! 				      s390_indirect_branch_type_call);
!       return "";
!     }
!   else
!     return "br\t%%r1";
! }
!   [(set (attr "op_type")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_CALL")
! 		     (const_string "RIL")
! 		     (const_string "RR")))
!    (set (attr "mnemonic")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_CALL")
! 		     (const_string "jg")
! 		     (const_string "br")))
     (set_attr "type"  "branch")
     (set_attr "atype" "agen")])
  
***************
*** 9455,9461 ****
    [(call (mem:QI (match_operand 0 "address_operand" "ZQZR"))
           (match_operand 1 "const_int_operand" "n"))
     (clobber (match_operand 2 "register_operand" "=r"))]
!   "!SIBLING_CALL_P (insn) && GET_MODE (operands[2]) == Pmode"
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "basr\t%2,%0";
--- 9789,9797 ----
    [(call (mem:QI (match_operand 0 "address_operand" "ZQZR"))
           (match_operand 1 "const_int_operand" "n"))
     (clobber (match_operand 2 "register_operand" "=r"))]
!   "!TARGET_INDIRECT_BRANCH_NOBP_CALL
!    && !SIBLING_CALL_P (insn)
!    && GET_MODE (operands[2]) == Pmode"
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "basr\t%2,%0";
***************
*** 9465,9470 ****
--- 9801,9850 ----
    [(set (attr "op_type")
          (if_then_else (match_operand 0 "register_operand" "")
                        (const_string "RR") (const_string "RX")))
+    (set (attr "mnemonic")
+         (if_then_else (match_operand 0 "register_operand" "")
+                       (const_string "basr") (const_string "bas")))
+    (set_attr "type"  "jsr")
+    (set_attr "atype" "agen")
+    (set_attr "z196prop" "z196_cracked")])
+ 
+ (define_insn "*basr_via_thunk<mode>_z10"
+   [(call (mem:QI (match_operand:P 0 "register_operand" "a"))
+          (match_operand 1 "const_int_operand"          "n"))
+    (clobber (match_operand:P 2 "register_operand"    "=&r"))]
+   "TARGET_INDIRECT_BRANCH_NOBP_CALL
+    && TARGET_CPU_Z10
+    && !SIBLING_CALL_P (insn)"
+ {
+   s390_indirect_branch_via_thunk (REGNO (operands[0]),
+ 				  REGNO (operands[2]),
+ 				  NULL_RTX,
+ 				  s390_indirect_branch_type_call);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "mnemonic" "brasl")
+    (set_attr "type"  "jsr")
+    (set_attr "atype" "agen")
+    (set_attr "z196prop" "z196_cracked")])
+ 
+ (define_insn "*basr_via_thunk<mode>"
+   [(call (mem:QI (match_operand:P 0 "register_operand" "a"))
+          (match_operand 1 "const_int_operand"          "n"))
+    (clobber (match_operand:P 2 "register_operand"    "=&r"))
+    (clobber (reg:P INDIRECT_BRANCH_THUNK_REGNUM))]
+   "TARGET_INDIRECT_BRANCH_NOBP_CALL
+    && !TARGET_CPU_Z10
+    && !SIBLING_CALL_P (insn)"
+ {
+   s390_indirect_branch_via_thunk (REGNO (operands[0]),
+ 				  REGNO (operands[2]),
+ 				  NULL_RTX,
+ 				  s390_indirect_branch_type_call);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "mnemonic" "brasl")
     (set_attr "type"  "jsr")
     (set_attr "atype" "agen")
     (set_attr "z196prop" "z196_cracked")])
***************
*** 9516,9522 ****
          (call (mem:QI (match_operand 1 "address_operand" "ZQZR"))
                (match_operand 2 "const_int_operand" "n")))
     (clobber (match_operand 3 "register_operand" "=r"))]
!   "!SIBLING_CALL_P (insn) && GET_MODE (operands[3]) == Pmode"
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "basr\t%3,%1";
--- 9896,9904 ----
          (call (mem:QI (match_operand 1 "address_operand" "ZQZR"))
                (match_operand 2 "const_int_operand" "n")))
     (clobber (match_operand 3 "register_operand" "=r"))]
!   "!TARGET_INDIRECT_BRANCH_NOBP_CALL
!    && !SIBLING_CALL_P (insn)
!    && GET_MODE (operands[3]) == Pmode"
  {
    if (get_attr_op_type (insn) == OP_TYPE_RR)
      return "basr\t%3,%1";
***************
*** 9526,9531 ****
--- 9908,9961 ----
    [(set (attr "op_type")
          (if_then_else (match_operand 1 "register_operand" "")
                        (const_string "RR") (const_string "RX")))
+    (set (attr "mnemonic")
+         (if_then_else (match_operand 1 "register_operand" "")
+                       (const_string "basr") (const_string "bas")))
+    (set_attr "type"  "jsr")
+    (set_attr "atype" "agen")
+    (set_attr "z196prop" "z196_cracked")])
+ 
+ (define_insn "*basr_r_via_thunk_z10"
+   [(set (match_operand 0 "" "")
+         (call (mem:QI (match_operand 1 "register_operand" "a"))
+               (match_operand 2 "const_int_operand"        "n")))
+    (clobber (match_operand 3 "register_operand"         "=&r"))]
+   "TARGET_INDIRECT_BRANCH_NOBP_CALL
+    && TARGET_CPU_Z10
+    && !SIBLING_CALL_P (insn)
+    && GET_MODE (operands[3]) == Pmode"
+ {
+   s390_indirect_branch_via_thunk (REGNO (operands[1]),
+ 				  REGNO (operands[3]),
+ 				  NULL_RTX,
+ 				  s390_indirect_branch_type_call);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "mnemonic" "brasl")
+    (set_attr "type"  "jsr")
+    (set_attr "atype" "agen")
+    (set_attr "z196prop" "z196_cracked")])
+ 
+ (define_insn "*basr_r_via_thunk"
+   [(set (match_operand 0 "" "")
+         (call (mem:QI (match_operand 1 "register_operand" "a"))
+               (match_operand 2 "const_int_operand"        "n")))
+    (clobber (match_operand 3 "register_operand"         "=&r"))
+    (clobber (reg:P INDIRECT_BRANCH_THUNK_REGNUM))]
+   "TARGET_INDIRECT_BRANCH_NOBP_CALL
+    && !TARGET_CPU_Z10
+    && !SIBLING_CALL_P (insn)
+    && GET_MODE (operands[3]) == Pmode"
+ {
+   s390_indirect_branch_via_thunk (REGNO (operands[1]),
+ 				  REGNO (operands[3]),
+ 				  NULL_RTX,
+ 				  s390_indirect_branch_type_call);
+   return "";
+ }
+   [(set_attr "op_type" "RIL")
+    (set_attr "mnemonic"  "brasl")
     (set_attr "type"  "jsr")
     (set_attr "atype" "agen")
     (set_attr "z196prop" "z196_cracked")])
***************
*** 10282,10298 ****
  (define_insn "<code>"
    [(ANY_RETURN)]
    "s390_can_use_<code>_insn ()"
!   "br\t%%r14"
!   [(set_attr "op_type" "RR")
     (set_attr "type"    "jsr")
     (set_attr "atype"   "agen")])
  
! (define_insn "*return"
    [(return)
!    (use (match_operand 0 "register_operand" "a"))]
!   "GET_MODE (operands[0]) == Pmode"
!   "br\t%0"
!   [(set_attr "op_type" "RR")
     (set_attr "type"    "jsr")
     (set_attr "atype"   "agen")])
  
--- 10712,10812 ----
  (define_insn "<code>"
    [(ANY_RETURN)]
    "s390_can_use_<code>_insn ()"
! {
!   if (TARGET_INDIRECT_BRANCH_NOBP_RET)
!     {
!       /* The target is always r14 so there is no clobber
! 	 of r1 needed for pre z10 targets.  */
!       s390_indirect_branch_via_thunk (RETURN_REGNUM,
! 				      INVALID_REGNUM,
! 				      NULL_RTX,
! 				      s390_indirect_branch_type_return);
!       return "";
!     }
!   else
!     return "br\t%%r14";
! }
!   [(set (attr "op_type")
! 	(if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
! 		      (const_string "RIL")
! 		      (const_string "RR")))
!    (set (attr "mnemonic")
! 	(if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
! 		      (const_string "jg")
! 		      (const_string "br")))
     (set_attr "type"    "jsr")
     (set_attr "atype"   "agen")])
  
! 
! (define_expand "return_use"
!   [(parallel
!     [(return)
!      (use (match_operand 0 "register_operand" "a"))])]
!   ""
! {
!   if (!TARGET_CPU_Z10
!       && TARGET_INDIRECT_BRANCH_NOBP_RET_OPTION)
!     {
!       if (TARGET_64BIT)
!         emit_jump_insn (gen_returndi_prez10 (operands[0]));
!       else
!         emit_jump_insn (gen_returnsi_prez10 (operands[0]));
!       DONE;
!     }
! })
! 
! (define_insn "*return<mode>"
    [(return)
!    (use (match_operand:P 0 "register_operand" "a"))]
!   "TARGET_CPU_Z10 || !TARGET_INDIRECT_BRANCH_NOBP_RET_OPTION"
! {
!   if (TARGET_INDIRECT_BRANCH_NOBP_RET)
!     {
!       s390_indirect_branch_via_thunk (REGNO (operands[0]),
!                                       INVALID_REGNUM,
!                                       NULL_RTX,
!                                       s390_indirect_branch_type_return);
!       return "";
!     }
!   else
!     return "br\t%0";
! }
!   [(set (attr "op_type")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
!                      (const_string "RIL")
!                      (const_string "RR")))
!    (set (attr "mnemonic")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
!                      (const_string "jg")
!                      (const_string "br")))
!    (set_attr "type"    "jsr")
!    (set_attr "atype"   "agen")])
! 
! (define_insn "return<mode>_prez10"
!   [(return)
!    (use (match_operand:P 0 "register_operand" "a"))
!    (clobber (reg:P INDIRECT_BRANCH_THUNK_REGNUM))]
!   "!TARGET_CPU_Z10 && TARGET_INDIRECT_BRANCH_NOBP_RET_OPTION"
! {
!   if (TARGET_INDIRECT_BRANCH_NOBP_RET)
!     {
!       s390_indirect_branch_via_thunk (REGNO (operands[0]),
!                                       INVALID_REGNUM,
!                                       NULL_RTX,
!                                       s390_indirect_branch_type_return);
!       return "";
!     }
!   else
!     return "br\t%0";
! }
!   [(set (attr "op_type")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
!                      (const_string "RIL")
!                      (const_string "RR")))
!    (set (attr "mnemonic")
!        (if_then_else (match_test "TARGET_INDIRECT_BRANCH_NOBP_RET")
!                      (const_string "jg")
!                      (const_string "br")))
     (set_attr "type"    "jsr")
     (set_attr "atype"   "agen")])
  
diff -Nrcpad gcc-6.4.0/gcc/config/s390/s390.opt gcc-6.5.0/gcc/config/s390/s390.opt
*** gcc-6.4.0/gcc/config/s390/s390.opt	Fri Jan 15 12:41:51 2016
--- gcc-6.5.0/gcc/config/s390/s390.opt	Wed Mar  7 13:10:35 2018
*************** values are small, non-negative integers.
*** 199,201 ****
--- 199,260 ----
  mlra
  Target Report Var(s390_lra_flag) Init(1) Save
  Use LRA instead of reload.
+ 
+ mindirect-branch=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(s390_indirect_branch) Init(indirect_branch_keep)
+ Wrap all indirect branches into execute in order to disable branch
+ prediction.
+ 
+ mindirect-branch-jump=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(s390_indirect_branch_jump) Init(indirect_branch_keep)
+ Wrap indirect table jumps and computed gotos into execute in order to
+ disable branch prediction.  Using thunk or thunk-extern with this
+ option requires the thunks to be considered signal handlers to order to
+ generate correct CFI.  For environments where unwinding (e.g. for
+ exceptions) is required please use thunk-inline instead.
+ 
+ mindirect-branch-call=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(s390_indirect_branch_call) Init(indirect_branch_keep)
+ Wrap all indirect calls into execute in order to disable branch prediction.
+ 
+ mfunction-return=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(s390_function_return) Init(indirect_branch_keep)
+ Wrap all indirect return branches into execute in order to disable branch
+ prediction.
+ 
+ mfunction-return-mem=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(s390_function_return_mem) Init(indirect_branch_keep)
+ Wrap indirect return branches into execute in order to disable branch
+ prediction. This affects only branches where the return address is
+ going to be restored from memory.
+ 
+ mfunction-return-reg=
+ Target Report RejectNegative Joined Enum(indirect_branch) Var(s390_function_return_reg) Init(indirect_branch_keep)
+ Wrap indirect return branches into execute in order to disable branch
+ prediction. This affects only branches where the return address
+ doesn't need to be restored from memory.
+ 
+ Enum
+ Name(indirect_branch) Type(enum indirect_branch)
+ Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options):
+ 
+ EnumValue
+ Enum(indirect_branch) String(keep) Value(indirect_branch_keep)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline)
+ 
+ EnumValue
+ Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern)
+ 
+ mindirect-branch-table
+ Target Report Var(s390_indirect_branch_table) Init(TARGET_DEFAULT_INDIRECT_BRANCH_TABLE)
+ Generate sections .s390_indirect_jump, .s390_indirect_call,
+ .s390_return_reg, and .s390_return_mem to contain the indirect branch
+ locations which have been patched as part of using one of the
+ -mindirect-branch* or -mfunction-return* options.  The sections
+ consist of an array of 32 bit elements. Each entry holds the offset
+ from the entry to the patched location.
diff -Nrcpad gcc-6.4.0/gcc/config/sh/sh-protos.h gcc-6.5.0/gcc/config/sh/sh-protos.h
*** gcc-6.4.0/gcc/config/sh/sh-protos.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/sh/sh-protos.h	Sun Jan 21 13:00:51 2018
*************** sh_find_set_of_reg (rtx reg, rtx_insn* i
*** 228,236 ****
  	}
      }
  
!   if (result.set_src != NULL)
!     gcc_assert (result.insn != NULL && result.set_rtx != NULL);
! 
    return result;
  }
  
--- 228,240 ----
  	}
      }
  
!   /* If the searched reg is found inside a (mem (post_inc:SI (reg))), set_of
!      will return NULL and set_rtx will be NULL.
!      In this case report a 'not found'.  result.insn will always be non-null
!      at this point, so no need to check it.  */
!   if (result.set_src != NULL && result.set_rtx == NULL)
!     result.set_src = NULL;
!  
    return result;
  }
  
diff -Nrcpad gcc-6.4.0/gcc/config/sh/sh_optimize_sett_clrt.cc gcc-6.5.0/gcc/config/sh/sh_optimize_sett_clrt.cc
*** gcc-6.4.0/gcc/config/sh/sh_optimize_sett_clrt.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/sh/sh_optimize_sett_clrt.cc	Sun Jan 21 05:15:59 2018
*************** along with GCC; see the file COPYING3.
*** 18,23 ****
--- 18,25 ----
  <http://www.gnu.org/licenses/>.  */
  
  #include "config.h"
+ #define INCLUDE_ALGORITHM
+ #define INCLUDE_VECTOR
  #include "system.h"
  #include "coretypes.h"
  #include "backend.h"
*************** along with GCC; see the file COPYING3.
*** 27,35 ****
  #include "cfgrtl.h"
  #include "tree-pass.h"
  
- #include <vector>
- #include <algorithm>
- 
  /*
  This pass tries to eliminate unnecessary sett or clrt instructions in cases
  where the ccreg value is already known to be the same as the constant set
--- 29,34 ----
diff -Nrcpad gcc-6.4.0/gcc/config/sol2.h gcc-6.5.0/gcc/config/sol2.h
*** gcc-6.4.0/gcc/config/sol2.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/config/sol2.h	Tue Nov 21 09:41:34 2017
*************** along with GCC; see the file COPYING3.
*** 159,167 ****
  			    %{!ansi:values-Xa.o%s}"
  
  #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
! #define STARTFILE_CRTBEGIN_SPEC "%{shared:crtbeginS.o%s} \
! 				 %{" PIE_SPEC ":crtbeginS.o%s} \
! 				 %{" NO_PIE_SPEC ":crtbegin.o%s}"
  #else
  #define STARTFILE_CRTBEGIN_SPEC	"crtbegin.o%s"
  #endif
--- 159,167 ----
  			    %{!ansi:values-Xa.o%s}"
  
  #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
! #define STARTFILE_CRTBEGIN_SPEC "%{static:crtbegin.o%s; \
! 				   shared|" PIE_SPEC ":crtbeginS.o%s; \
! 				   :crtbegin.o%s}"
  #else
  #define STARTFILE_CRTBEGIN_SPEC	"crtbegin.o%s"
  #endif
*************** along with GCC; see the file COPYING3.
*** 185,192 ****
  /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
  #undef STARTFILE_SPEC
  #ifdef HAVE_SOLARIS_CRTS
! /* Since Solaris 11.x and Solaris 12, the OS delivers crt1.o, crti.o, and
!    crtn.o, with a hook for compiler-dependent stuff like profile handling.  */
  #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
  			  crt1.o%s \
  			  %{p:%e-p is not supported; \
--- 185,192 ----
  /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
  #undef STARTFILE_SPEC
  #ifdef HAVE_SOLARIS_CRTS
! /* Since Solaris 11.4, the OS delivers crt1.o, crti.o, and crtn.o, with a hook
!    for compiler-dependent stuff like profile handling.  */
  #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
  			  crt1.o%s \
  			  %{p:%e-p is not supported; \
*************** along with GCC; see the file COPYING3.
*** 204,212 ****
  #endif
  
  #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
! #define ENDFILE_CRTEND_SPEC "%{shared:crtendS.o%s;: \
! 			       %{" PIE_SPEC ":crtendS.o%s} \
! 			       %{" NO_PIE_SPEC ":crtend.o%s}}"
  #else
  #define ENDFILE_CRTEND_SPEC "crtend.o%s"
  #endif
--- 204,212 ----
  #endif
  
  #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
! #define ENDFILE_CRTEND_SPEC "%{static:crtend.o%s; \
! 			       shared|" PIE_SPEC ":crtendS.o%s; \
! 			       :crtend.o%s}"
  #else
  #define ENDFILE_CRTEND_SPEC "crtend.o%s"
  #endif
diff -Nrcpad gcc-6.4.0/gcc/config/sparc/sparc.c gcc-6.5.0/gcc/config/sparc/sparc.c
*** gcc-6.4.0/gcc/config/sparc/sparc.c	Fri Jun  9 19:24:51 2017
--- gcc-6.5.0/gcc/config/sparc/sparc.c	Fri Apr  6 22:33:55 2018
*************** sparc_do_work_around_errata (void)
*** 969,975 ****
  	       && NONJUMP_INSN_P (insn)
  	       && (set = single_set (insn)) != NULL_RTX
  	       && GET_MODE_SIZE (GET_MODE (SET_SRC (set))) <= 4
! 	       && mem_ref (SET_SRC (set)) != NULL_RTX
  	       && REG_P (SET_DEST (set))
  	       && REGNO (SET_DEST (set)) < 32)
  	{
--- 969,976 ----
  	       && NONJUMP_INSN_P (insn)
  	       && (set = single_set (insn)) != NULL_RTX
  	       && GET_MODE_SIZE (GET_MODE (SET_SRC (set))) <= 4
! 	       && (mem_ref (SET_SRC (set)) != NULL_RTX
! 		   || INSN_CODE (insn) == CODE_FOR_movsi_pic_gotdata_op)
  	       && REG_P (SET_DEST (set))
  	       && REGNO (SET_DEST (set)) < 32)
  	{
*************** sparc_do_work_around_errata (void)
*** 1007,1012 ****
--- 1008,1018 ----
  			       && REGNO (src) != REGNO (x)))
  		       && !reg_mentioned_p (x, XEXP (dest, 0)))
  		insert_nop = true;
+ 
+ 	      /* GOT accesses uses LD.  */
+ 	      else if (INSN_CODE (next) == CODE_FOR_movsi_pic_gotdata_op
+ 		       && !reg_mentioned_p (x, XEXP (XEXP (src, 0), 1)))
+ 		insert_nop = true;
  	    }
  	}
  
*************** sparc_expand_move (machine_mode mode, rt
*** 1831,1837 ****
  	}
      }
  
!   /* Fixup TLS cases.  */
    if (TARGET_HAVE_TLS
        && CONSTANT_P (operands[1])
        && sparc_tls_referenced_p (operands [1]))
--- 1837,1843 ----
  	}
      }
  
!   /* Fix up TLS cases.  */
    if (TARGET_HAVE_TLS
        && CONSTANT_P (operands[1])
        && sparc_tls_referenced_p (operands [1]))
*************** sparc_expand_move (machine_mode mode, rt
*** 1840,1854 ****
        return false;
      }
  
!   /* Fixup PIC cases.  */
    if (flag_pic && CONSTANT_P (operands[1]))
      {
        if (pic_address_needs_scratch (operands[1]))
  	operands[1] = sparc_legitimize_pic_address (operands[1], NULL_RTX);
  
        /* We cannot use the mov{si,di}_pic_label_ref patterns in all cases.  */
!       if (GET_CODE (operands[1]) == LABEL_REF
! 	  && can_use_mov_pic_label_ref (operands[1]))
  	{
  	  if (mode == SImode)
  	    {
--- 1846,1865 ----
        return false;
      }
  
!   /* Fix up PIC cases.  */
    if (flag_pic && CONSTANT_P (operands[1]))
      {
        if (pic_address_needs_scratch (operands[1]))
  	operands[1] = sparc_legitimize_pic_address (operands[1], NULL_RTX);
  
        /* We cannot use the mov{si,di}_pic_label_ref patterns in all cases.  */
!       if ((GET_CODE (operands[1]) == LABEL_REF
! 	   && can_use_mov_pic_label_ref (operands[1]))
! 	  || (GET_CODE (operands[1]) == CONST
! 	      && GET_CODE (XEXP (operands[1], 0)) == PLUS
! 	      && GET_CODE (XEXP (XEXP (operands[1], 0), 0)) == LABEL_REF
! 	      && GET_CODE (XEXP (XEXP (operands[1], 0), 1)) == CONST_INT
! 	      && can_use_mov_pic_label_ref (XEXP (XEXP (operands[1], 0), 0))))
  	{
  	  if (mode == SImode)
  	    {
*************** sparc_expand_move (machine_mode mode, rt
*** 1858,1864 ****
  
  	  if (mode == DImode)
  	    {
- 	      gcc_assert (TARGET_ARCH64);
  	      emit_insn (gen_movdi_pic_label_ref (operands[0], operands[1]));
  	      return true;
  	    }
--- 1869,1874 ----
*************** int
*** 3845,3854 ****
  pic_address_needs_scratch (rtx x)
  {
    /* An address which is a symbolic plus a non SMALL_INT needs a temp reg.  */
!   if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS
        && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF
        && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT
!       && ! SMALL_INT (XEXP (XEXP (x, 0), 1)))
      return 1;
  
    return 0;
--- 3855,3865 ----
  pic_address_needs_scratch (rtx x)
  {
    /* An address which is a symbolic plus a non SMALL_INT needs a temp reg.  */
!   if (GET_CODE (x) == CONST
!       && GET_CODE (XEXP (x, 0)) == PLUS
        && GET_CODE (XEXP (XEXP (x, 0), 0)) == SYMBOL_REF
        && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT
!       && !SMALL_INT (XEXP (XEXP (x, 0), 1)))
      return 1;
  
    return 0;
*************** sparc_legitimize_tls_address (rtx addr)
*** 4289,4304 ****
  static rtx
  sparc_legitimize_pic_address (rtx orig, rtx reg)
  {
-   bool gotdata_op = false;
- 
    if (GET_CODE (orig) == SYMBOL_REF
        /* See the comment in sparc_expand_move.  */
        || (GET_CODE (orig) == LABEL_REF && !can_use_mov_pic_label_ref (orig)))
      {
        rtx pic_ref, address;
        rtx_insn *insn;
  
!       if (reg == 0)
  	{
  	  gcc_assert (can_create_pseudo_p ());
  	  reg = gen_reg_rtx (Pmode);
--- 4300,4314 ----
  static rtx
  sparc_legitimize_pic_address (rtx orig, rtx reg)
  {
    if (GET_CODE (orig) == SYMBOL_REF
        /* See the comment in sparc_expand_move.  */
        || (GET_CODE (orig) == LABEL_REF && !can_use_mov_pic_label_ref (orig)))
      {
+       bool gotdata_op = false;
        rtx pic_ref, address;
        rtx_insn *insn;
  
!       if (!reg)
  	{
  	  gcc_assert (can_create_pseudo_p ());
  	  reg = gen_reg_rtx (Pmode);
*************** sparc_legitimize_pic_address (rtx orig,
*** 4309,4316 ****
  	  /* If not during reload, allocate another temp reg here for loading
  	     in the address, so that these instructions can be optimized
  	     properly.  */
! 	  rtx temp_reg = (! can_create_pseudo_p ()
! 			  ? reg : gen_reg_rtx (Pmode));
  
  	  /* Must put the SYMBOL_REF inside an UNSPEC here so that cse
  	     won't get confused into thinking that these two instructions
--- 4319,4325 ----
  	  /* If not during reload, allocate another temp reg here for loading
  	     in the address, so that these instructions can be optimized
  	     properly.  */
! 	  rtx temp_reg = can_create_pseudo_p () ? gen_reg_rtx (Pmode) : reg;
  
  	  /* Must put the SYMBOL_REF inside an UNSPEC here so that cse
  	     won't get confused into thinking that these two instructions
*************** sparc_legitimize_pic_address (rtx orig,
*** 4326,4331 ****
--- 4335,4341 ----
  	      emit_insn (gen_movsi_high_pic (temp_reg, orig));
  	      emit_insn (gen_movsi_lo_sum_pic (temp_reg, temp_reg, orig));
  	    }
+ 
  	  address = temp_reg;
  	  gotdata_op = true;
  	}
*************** sparc_legitimize_pic_address (rtx orig,
*** 4366,4372 ****
  	  && XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx)
  	return orig;
  
!       if (reg == 0)
  	{
  	  gcc_assert (can_create_pseudo_p ());
  	  reg = gen_reg_rtx (Pmode);
--- 4376,4382 ----
  	  && XEXP (XEXP (orig, 0), 0) == pic_offset_table_rtx)
  	return orig;
  
!       if (!reg)
  	{
  	  gcc_assert (can_create_pseudo_p ());
  	  reg = gen_reg_rtx (Pmode);
*************** sparc_delegitimize_address (rtx x)
*** 4475,4481 ****
        && XINT (XEXP (XEXP (x, 1), 1), 1) == UNSPEC_MOVE_PIC_LABEL)
      {
        x = XVECEXP (XEXP (XEXP (x, 1), 1), 0, 0);
!       gcc_assert (GET_CODE (x) == LABEL_REF);
      }
  
    return x;
--- 4485,4495 ----
        && XINT (XEXP (XEXP (x, 1), 1), 1) == UNSPEC_MOVE_PIC_LABEL)
      {
        x = XVECEXP (XEXP (XEXP (x, 1), 1), 0, 0);
!       gcc_assert (GET_CODE (x) == LABEL_REF
! 		  || (GET_CODE (x) == CONST
! 		      && GET_CODE (XEXP (x, 0)) == PLUS
! 		      && GET_CODE (XEXP (XEXP (x, 0), 0)) == LABEL_REF
! 		      && GET_CODE (XEXP (XEXP (x, 0), 1)) == CONST_INT));
      }
  
    return x;
diff -Nrcpad gcc-6.4.0/gcc/config/sparc/sparc.md gcc-6.5.0/gcc/config/sparc/sparc.md
*** gcc-6.4.0/gcc/config/sparc/sparc.md	Fri Jun  9 19:24:51 2017
--- gcc-6.5.0/gcc/config/sparc/sparc.md	Fri Apr  6 22:33:55 2018
***************
*** 1525,1531 ****
  
  (define_expand "movsi_pic_label_ref"
    [(set (match_dup 3) (high:SI
!      (unspec:SI [(match_operand:SI 1 "label_ref_operand" "")
  		 (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
     (set (match_dup 4) (lo_sum:SI (match_dup 3)
       (unspec:SI [(match_dup 1) (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
--- 1525,1531 ----
  
  (define_expand "movsi_pic_label_ref"
    [(set (match_dup 3) (high:SI
!      (unspec:SI [(match_operand:SI 1 "symbolic_operand" "")
  		 (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
     (set (match_dup 4) (lo_sum:SI (match_dup 3)
       (unspec:SI [(match_dup 1) (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
***************
*** 1551,1557 ****
  (define_insn "*movsi_high_pic_label_ref"
    [(set (match_operand:SI 0 "register_operand" "=r")
        (high:SI
!         (unspec:SI [(match_operand:SI 1 "label_ref_operand" "")
  		    (match_operand:SI 2 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "flag_pic"
    "sethi\t%%hi(%a2-(%a1-.)), %0")
--- 1551,1557 ----
  (define_insn "*movsi_high_pic_label_ref"
    [(set (match_operand:SI 0 "register_operand" "=r")
        (high:SI
!         (unspec:SI [(match_operand:SI 1 "symbolic_operand" "")
  		    (match_operand:SI 2 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "flag_pic"
    "sethi\t%%hi(%a2-(%a1-.)), %0")
***************
*** 1559,1565 ****
  (define_insn "*movsi_lo_sum_pic_label_ref"
    [(set (match_operand:SI 0 "register_operand" "=r")
        (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
!         (unspec:SI [(match_operand:SI 2 "label_ref_operand" "")
  		    (match_operand:SI 3 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "flag_pic"
    "or\t%1, %%lo(%a3-(%a2-.)), %0")
--- 1559,1565 ----
  (define_insn "*movsi_lo_sum_pic_label_ref"
    [(set (match_operand:SI 0 "register_operand" "=r")
        (lo_sum:SI (match_operand:SI 1 "register_operand" "r")
!         (unspec:SI [(match_operand:SI 2 "symbolic_operand" "")
  		    (match_operand:SI 3 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "flag_pic"
    "or\t%1, %%lo(%a3-(%a2-.)), %0")
***************
*** 1661,1667 ****
  
  (define_expand "movdi_pic_label_ref"
    [(set (match_dup 3) (high:DI
!      (unspec:DI [(match_operand:DI 1 "label_ref_operand" "")
                   (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
     (set (match_dup 4) (lo_sum:DI (match_dup 3)
       (unspec:DI [(match_dup 1) (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
--- 1661,1667 ----
  
  (define_expand "movdi_pic_label_ref"
    [(set (match_dup 3) (high:DI
!      (unspec:DI [(match_operand:DI 1 "symbolic_operand" "")
                   (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
     (set (match_dup 4) (lo_sum:DI (match_dup 3)
       (unspec:DI [(match_dup 1) (match_dup 2)] UNSPEC_MOVE_PIC_LABEL)))
***************
*** 1687,1693 ****
  (define_insn "*movdi_high_pic_label_ref"
    [(set (match_operand:DI 0 "register_operand" "=r")
          (high:DI
!           (unspec:DI [(match_operand:DI 1 "label_ref_operand" "")
                        (match_operand:DI 2 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "TARGET_ARCH64 && flag_pic"
    "sethi\t%%hi(%a2-(%a1-.)), %0")
--- 1687,1693 ----
  (define_insn "*movdi_high_pic_label_ref"
    [(set (match_operand:DI 0 "register_operand" "=r")
          (high:DI
!           (unspec:DI [(match_operand:DI 1 "symbolic_operand" "")
                        (match_operand:DI 2 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "TARGET_ARCH64 && flag_pic"
    "sethi\t%%hi(%a2-(%a1-.)), %0")
***************
*** 1695,1701 ****
  (define_insn "*movdi_lo_sum_pic_label_ref"
    [(set (match_operand:DI 0 "register_operand" "=r")
        (lo_sum:DI (match_operand:DI 1 "register_operand" "r")
!         (unspec:DI [(match_operand:DI 2 "label_ref_operand" "")
                      (match_operand:DI 3 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "TARGET_ARCH64 && flag_pic"
    "or\t%1, %%lo(%a3-(%a2-.)), %0")
--- 1695,1701 ----
  (define_insn "*movdi_lo_sum_pic_label_ref"
    [(set (match_operand:DI 0 "register_operand" "=r")
        (lo_sum:DI (match_operand:DI 1 "register_operand" "r")
!         (unspec:DI [(match_operand:DI 2 "symbolic_operand" "")
                      (match_operand:DI 3 "" "")] UNSPEC_MOVE_PIC_LABEL)))]
    "TARGET_ARCH64 && flag_pic"
    "or\t%1, %%lo(%a3-(%a2-.)), %0")
diff -Nrcpad gcc-6.4.0/gcc/config/xtensa/xtensa.c gcc-6.5.0/gcc/config/xtensa/xtensa.c
*** gcc-6.4.0/gcc/config/xtensa/xtensa.c	Wed May 31 00:06:11 2017
--- gcc-6.5.0/gcc/config/xtensa/xtensa.c	Tue Sep  4 18:03:57 2018
*************** xtensa_mem_offset (unsigned v, machine_m
*** 601,606 ****
--- 601,607 ----
      case HImode:
        return xtensa_uimm8x2 (v);
  
+     case DImode:
      case DFmode:
        return (xtensa_uimm8x4 (v) && xtensa_uimm8x4 (v + 4));
  
*************** xtensa_expand_atomic (enum rtx_code code
*** 1582,1590 ****
        break;
  
      case MULT: /* NAND */
!       tmp = expand_simple_binop (SImode, XOR, old, ac.modemask,
  				 NULL_RTX, 1, OPTAB_DIRECT);
!       tmp = expand_simple_binop (SImode, AND, tmp, val,
  				 new_rtx, 1, OPTAB_DIRECT);
        break;
  
--- 1583,1591 ----
        break;
  
      case MULT: /* NAND */
!       tmp = expand_simple_binop (SImode, AND, old, val,
  				 NULL_RTX, 1, OPTAB_DIRECT);
!       tmp = expand_simple_binop (SImode, XOR, tmp, ac.modemask,
  				 new_rtx, 1, OPTAB_DIRECT);
        break;
  
diff -Nrcpad gcc-6.4.0/gcc/config/xtensa/xtensa.md gcc-6.5.0/gcc/config/xtensa/xtensa.md
*** gcc-6.4.0/gcc/config/xtensa/xtensa.md	Wed May 31 00:05:01 2017
--- gcc-6.5.0/gcc/config/xtensa/xtensa.md	Tue Jun 19 21:08:46 2018
***************
*** 38,43 ****
--- 38,44 ----
    (UNSPEC_MEMW		11)
    (UNSPEC_LSETUP_START  12)
    (UNSPEC_LSETUP_END    13)
+   (UNSPEC_FRAME_BLOCKAGE 14)
  
    (UNSPECV_SET_FP	1)
    (UNSPECV_ENTRY	2)
***************
*** 1676,1681 ****
--- 1677,1708 ----
  
  ;; Miscellaneous instructions.
  
+ ;; In windowed ABI stack pointer adjustment must happen before any access
+ ;; to the space allocated on stack is allowed, otherwise register spill
+ ;; area may be clobbered.  That's what frame blockage is supposed to enforce.
+ 
+ (define_expand "allocate_stack"
+   [(set (match_operand 0 "nonimmed_operand")
+         (minus (reg A1_REG) (match_operand 1 "add_operand")))
+    (set (reg A1_REG)
+         (minus (reg A1_REG) (match_dup 1)))]
+   "TARGET_WINDOWED_ABI"
+ {
+   if (CONST_INT_P (operands[1]))
+     {
+       rtx neg_op0 = GEN_INT (-INTVAL (operands[1]));
+       emit_insn (gen_addsi3 (stack_pointer_rtx, stack_pointer_rtx, neg_op0));
+     }
+   else
+     {
+       emit_insn (gen_subsi3 (stack_pointer_rtx, stack_pointer_rtx,
+ 			     operands[1]));
+     }
+   emit_move_insn (operands[0], virtual_stack_dynamic_rtx);
+   emit_insn (gen_frame_blockage ());
+   DONE;
+ })
+ 
  (define_expand "prologue"
    [(const_int 0)]
    ""
***************
*** 1767,1772 ****
--- 1794,1818 ----
    [(set_attr "length" "0")
     (set_attr "type" "nop")])
  
+ ;; Do not schedule instructions accessing memory before this point.
+ 
+ (define_expand "frame_blockage"
+   [(set (match_dup 0)
+         (unspec:BLK [(match_dup 1)] UNSPEC_FRAME_BLOCKAGE))]
+   ""
+ {
+   operands[0] = gen_rtx_MEM (BLKmode, gen_rtx_SCRATCH (Pmode));
+   MEM_VOLATILE_P (operands[0]) = 1;
+   operands[1] = stack_pointer_rtx;
+ })
+ 
+ (define_insn "*frame_blockage"
+   [(set (match_operand:BLK 0 "" "")
+         (unspec:BLK [(match_operand:SI 1 "" "")] UNSPEC_FRAME_BLOCKAGE))]
+   ""
+   ""
+   [(set_attr "length" "0")])
+ 
  (define_insn "trap"
    [(trap_if (const_int 1) (const_int 0))]
    ""
diff -Nrcpad gcc-6.4.0/gcc/config.gcc gcc-6.5.0/gcc/config.gcc
*** gcc-6.4.0/gcc/config.gcc	Mon Jan  9 21:01:26 2017
--- gcc-6.5.0/gcc/config.gcc	Tue Nov 21 09:41:34 2017
*************** case ${target} in
*** 850,857 ****
    sol2_tm_file_tail="${cpu_type}/sol2.h sol2.h"
    sol2_tm_file="${sol2_tm_file_head} ${sol2_tm_file_tail}"
    case ${target} in
!     *-*-solaris2.1[2-9]*)
!       # __cxa_atexit was introduced in Solaris 12.
        default_use_cxa_atexit=yes
        ;;
    esac
--- 850,857 ----
    sol2_tm_file_tail="${cpu_type}/sol2.h sol2.h"
    sol2_tm_file="${sol2_tm_file_head} ${sol2_tm_file_tail}"
    case ${target} in
!     *-*-solaris2.1[1-9]*)
!       # __cxa_atexit was introduced in Solaris 11.4.
        default_use_cxa_atexit=yes
        ;;
    esac
*************** arm*-*-freebsd*)                # ARM Fr
*** 1072,1077 ****
--- 1072,1081 ----
                 tm_defines="${tm_defines} TARGET_FREEBSD_ARM_HARD_FLOAT=1"
              fi
  	    ;;
+ 	armv7*-*-freebsd*)
+ 	    tm_defines="${tm_defines} TARGET_FREEBSD_ARMv7=1"
+ 	    tm_defines="${tm_defines} TARGET_FREEBSD_ARM_HARD_FLOAT=1"
+ 	    ;;
  	esac
  	with_tls=${with_tls:-gnu}
  	;;
diff -Nrcpad gcc-6.4.0/gcc/config.in gcc-6.5.0/gcc/config.in
*** gcc-6.4.0/gcc/config.in	Tue Jul  4 07:28:14 2017
--- gcc-6.5.0/gcc/config.in	Fri Oct 26 09:56:36 2018
***************
*** 679,684 ****
--- 679,690 ----
  #endif
  
  
+ /* Define if your assembler supports -xbrace_comment option. */
+ #ifndef USED_FOR_TARGET
+ #undef HAVE_AS_XBRACE_COMMENT_OPTION
+ #endif
+ 
+ 
  /* Define to 1 if you have the `atoq' function. */
  #ifndef USED_FOR_TARGET
  #undef HAVE_ATOQ
diff -Nrcpad gcc-6.4.0/gcc/configure gcc-6.5.0/gcc/configure
*** gcc-6.4.0/gcc/configure	Sun Dec 11 16:23:04 2016
--- gcc-6.5.0/gcc/configure	Thu Mar  8 08:55:59 2018
*************** fi
*** 7352,7361 ****
  if test "${enable_coverage+set}" = set; then :
    enableval=$enable_coverage; case "${enableval}" in
    yes|noopt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
      ;;
    opt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
      ;;
    no)
      # a.k.a. --disable-coverage
--- 7352,7361 ----
  if test "${enable_coverage+set}" = set; then :
    enableval=$enable_coverage; case "${enableval}" in
    yes|noopt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions"
      ;;
    opt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions"
      ;;
    no)
      # a.k.a. --disable-coverage
*************** fi
*** 23567,23572 ****
--- 23567,23580 ----
  $as_echo "$gcc_cv_as_shf_merge" >&6; }
  
  fi
+ case "$target" in
+   i?86-*-solaris2.10* | x86_64-*-solaris2.10*)
+     # SHF_MERGE support in Solaris 10/x86 ld is broken.
+     if test x"$gnu_ld" = xno; then
+       gcc_cv_as_shf_merge=no
+     fi
+     ;;
+ esac
  
  cat >>confdefs.h <<_ACEOF
  #define HAVE_GAS_SHF_MERGE `if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`
*************** $as_echo "$as_me: WARNING: LTO for $targ
*** 25366,25371 ****
--- 25374,25410 ----
  	;;
      esac
  
+     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -xbrace_comment" >&5
+ $as_echo_n "checking assembler for -xbrace_comment... " >&6; }
+ if test "${gcc_cv_as_ix86_xbrace_comment+set}" = set; then :
+   $as_echo_n "(cached) " >&6
+ else
+   gcc_cv_as_ix86_xbrace_comment=no
+   if test x$gcc_cv_as != x; then
+     $as_echo '.text' > conftest.s
+     if { ac_try='$gcc_cv_as $gcc_cv_as_flags -xbrace_comment=no -o conftest.o conftest.s >&5'
+   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+   (eval $ac_try) 2>&5
+   ac_status=$?
+   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+   test $ac_status = 0; }; }
+     then
+ 	gcc_cv_as_ix86_xbrace_comment=yes
+     else
+       echo "configure: failed program was" >&5
+       cat conftest.s >&5
+     fi
+     rm -f conftest.o conftest.s
+   fi
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_xbrace_comment" >&5
+ $as_echo "$gcc_cv_as_ix86_xbrace_comment" >&6; }
+ if test $gcc_cv_as_ix86_xbrace_comment = yes; then
+ 
+ $as_echo "#define HAVE_AS_XBRACE_COMMENT_OPTION 1" >>confdefs.h
+ 
+ fi
+ 
      # Test if the assembler supports the section flag 'e' for specifying
      # an excluded section.
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .section with e" >&5
*************** elif test x$gcc_cv_ld != x; then
*** 27857,27863 ****
    else
      case "$target" in
        *-*-solaris2.1[1-9]*)
! 	# Solaris 11.x and Solaris 12 added PIE support.
  	if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
  	  gcc_cv_ld_pie=yes
  	fi
--- 27896,27902 ----
    else
      case "$target" in
        *-*-solaris2.1[1-9]*)
! 	# Solaris 11.3 added PIE support.
  	if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
  	  gcc_cv_ld_pie=yes
  	fi
diff -Nrcpad gcc-6.4.0/gcc/configure.ac gcc-6.5.0/gcc/configure.ac
*** gcc-6.4.0/gcc/configure.ac	Sun Dec 11 16:23:04 2016
--- gcc-6.5.0/gcc/configure.ac	Thu Mar  8 08:55:59 2018
*************** AC_ARG_ENABLE(coverage,
*** 717,726 ****
  		 default is noopt])],
  [case "${enableval}" in
    yes|noopt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
      ;;
    opt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
      ;;
    no)
      # a.k.a. --disable-coverage
--- 717,726 ----
  		 default is noopt])],
  [case "${enableval}" in
    yes|noopt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0 -fkeep-static-functions"
      ;;
    opt)
!     coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2 -fkeep-static-functions"
      ;;
    no)
      # a.k.a. --disable-coverage
*************** if test $gcc_cv_as_shf_merge = no; then
*** 2933,2938 ****
--- 2933,2946 ----
      [elf,2,12,0], [--fatal-warnings],
      [.section .rodata.str, "aMS", %progbits, 1])
  fi
+ case "$target" in
+   i?86-*-solaris2.10* | x86_64-*-solaris2.10*)
+     # SHF_MERGE support in Solaris 10/x86 ld is broken.
+     if test x"$gnu_ld" = xno; then
+       gcc_cv_as_shf_merge=no
+     fi
+     ;;
+ esac
  AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
    [`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
  [Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
*************** foo:	nop
*** 4017,4022 ****
--- 4025,4035 ----
  	;;
      esac
  
+     gcc_GAS_CHECK_FEATURE([-xbrace_comment], gcc_cv_as_ix86_xbrace_comment,,
+       [-xbrace_comment=no], [.text],,
+       [AC_DEFINE(HAVE_AS_XBRACE_COMMENT_OPTION, 1,
+ 		[Define if your assembler supports -xbrace_comment option.])])
+ 
      # Test if the assembler supports the section flag 'e' for specifying
      # an excluded section.
      gcc_GAS_CHECK_FEATURE([.section with e], gcc_cv_as_section_has_e,
*************** elif test x$gcc_cv_ld != x; then
*** 4927,4933 ****
    else
      case "$target" in
        *-*-solaris2.1[[1-9]]*)
! 	# Solaris 11.x and Solaris 12 added PIE support.
  	if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
  	  gcc_cv_ld_pie=yes
  	fi
--- 4940,4946 ----
    else
      case "$target" in
        *-*-solaris2.1[[1-9]]*)
! 	# Solaris 11.3 added PIE support.
  	if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
  	  gcc_cv_ld_pie=yes
  	fi
diff -Nrcpad gcc-6.4.0/gcc/convert.c gcc-6.5.0/gcc/convert.c
*** gcc-6.4.0/gcc/convert.c	Thu Jun 22 07:30:03 2017
--- gcc-6.5.0/gcc/convert.c	Wed Jun 20 11:09:28 2018
*************** do_narrow (location_t loc,
*** 459,466 ****
  	     type in case the operation in outprec precision
  	     could overflow.  Otherwise, we would introduce
  	     signed-overflow undefinedness.  */
! 	  || ((!TYPE_OVERFLOW_WRAPS (TREE_TYPE (arg0))
! 	       || !TYPE_OVERFLOW_WRAPS (TREE_TYPE (arg1)))
  	      && ((TYPE_PRECISION (TREE_TYPE (arg0)) * 2u
  		   > outprec)
  		  || (TYPE_PRECISION (TREE_TYPE (arg1)) * 2u
--- 459,468 ----
  	     type in case the operation in outprec precision
  	     could overflow.  Otherwise, we would introduce
  	     signed-overflow undefinedness.  */
! 	  || ((!(INTEGRAL_TYPE_P (TREE_TYPE (arg0))
! 		 && TYPE_OVERFLOW_WRAPS (TREE_TYPE (arg0)))
! 	       || !(INTEGRAL_TYPE_P (TREE_TYPE (arg1))
! 		    && TYPE_OVERFLOW_WRAPS (TREE_TYPE (arg1))))
  	      && ((TYPE_PRECISION (TREE_TYPE (arg0)) * 2u
  		   > outprec)
  		  || (TYPE_PRECISION (TREE_TYPE (arg1)) * 2u
diff -Nrcpad gcc-6.4.0/gcc/cp/ChangeLog gcc-6.5.0/gcc/cp/ChangeLog
*** gcc-6.4.0/gcc/cp/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/cp/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,228 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-23  Tom de Vries  <tdevries@suse.de>
+ 
+ 	backport from trunk:
+ 	2018-07-31  Tom de Vries  <tdevries@suse.de>
+ 
+ 	PR debug/86687
+ 	* optimize.c (update_cloned_parm): Copy DECL_BY_REFERENCE.
+ 
+ 2018-10-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-07-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/3698
+ 	PR c++/86208
+ 	* cp-gimplify.c (cp_genericize_r): When using extern_decl_map, or
+ 	in TREE_USED flag from stmt to h->to.
+ 
+ 2018-06-26  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/86291
+ 	* parser.c (cp_parser_omp_for_loop_init): Change for_block argument
+ 	type from vec<tree, va_gc> * to vec<tree, va_gc> *&.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-04-03  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/85147
+ 	* pt.c (fixed_parameter_pack_p_1): Punt if parm is error_mark_node.
+ 
+ 	PR c++/85140
+ 	* name-lookup.c (handle_namespace_attrs): Return early if attributes
+ 	is error_mark_node.
+ 
+ 	2018-03-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84791
+ 	* semantics.c (finish_omp_reduction_clause): If
+ 	OMP_CLAUSE_REDUCTION_PLACEHOLDER is error_mark_node, return true
+ 	even if processing_template_decl.
+ 
+ 	2018-03-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/85076
+ 	* tree.c (cp_build_reference_type): If to_type is error_mark_node,
+ 	return it right away.
+ 
+ 	PR c++/85068
+ 	* class.c (update_vtable_entry_for_fn): Don't ICE if base_binfo
+ 	is NULL.  Assert if thunk_binfo is NULL then errorcount is non-zero.
+ 
+ 	2018-03-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84874
+ 	* decl.c (reshape_init_class): Don't assert d->cur->index == field
+ 	if d->cur->index is a FIELD_DECL, instead set field to d->cur->index.
+ 
+ 	2018-03-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84222
+ 	* cp-tree.h (cp_warn_deprecated_use): Declare.
+ 	* tree.c (cp_warn_deprecated_use): New function.
+ 	* typeck2.c (build_functional_cast): Use it.
+ 	* decl.c (grokparms): Likewise.
+ 	(grokdeclarator): Likewise.  Temporarily push nested class scope
+ 	around grokparms call for out of class member definitions.
+ 
+ 	2018-03-09  Jason Merrill  <jason@redhat.com>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84076
+ 	* call.c (convert_arg_to_ellipsis): Instead of cp_build_addr_expr
+ 	build ADDR_EXPR with REFERENCE_TYPE.
+ 	(build_over_call): For purposes of check_function_arguments, if
+ 	argarray[j] is ADDR_EXPR with REFERENCE_TYPE created above, use
+ 	its operand rather than the argument itself.
+ 
+ 	2018-03-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84662
+ 	* pt.c (tsubst_copy_and_build) <case TEMPLATE_ID_EXPR>: Use
+ 	RETURN instead of return.
+ 	<case POINTER_PLUS_EXPR>: Likewise.
+ 	<case CONVERT_EXPR>: If op0 is error_mark_node, just return
+ 	it instead of wrapping it into CONVERT_EXPR.
+ 
+ 	2018-02-26  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84558
+ 	* constexpr.c (cxx_eval_vec_init_1): For reuse, treat NULL eltinit like
+ 	a valid constant initializer.  Formatting fixes.
+ 
+ 	2018-02-19  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84448
+ 	* parser.c (cp_parser_binary_expression): For no_toplevel_fold_p, if
+ 	either operand is error_mark_node, set current.lhs to that instead of
+ 	creating a binary op with error_mark_node operands.
+ 
+ 	2018-02-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84341
+ 	* parser.c (cp_parser_binary_expression): Use build_min instead of
+ 	build2_loc to build the no_toplevel_fold_p toplevel binary expression.
+ 
+ 	2018-02-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/83987
+ 	* tree.c (cp_free_lang_data): Revert 2018-01-23 change.
+ 
+ 	2018-01-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/83987
+ 	* tree.c (cp_free_lang_data): Change DECL_VALUE_EXPR of
+ 	DECL_OMP_PRIVATIZED_MEMBER vars to error_mark_node.
+ 
+ 	2018-01-18  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/83824
+ 	* parser.c (attr_chainon): New function.
+ 	(cp_parser_label_for_labeled_statement, cp_parser_decl_specifier_seq,
+ 	cp_parser_namespace_definition, cp_parser_init_declarator,
+ 	cp_parser_type_specifier_seq, cp_parser_parameter_declaration,
+ 	cp_parser_gnu_attributes_opt): Use it.
+ 	(cp_parser_member_declaration, cp_parser_objc_class_ivars,
+ 	cp_parser_objc_struct_declaration): Likewise.  Don't reset
+ 	prefix_attributes if attributes is error_mark_node.
+ 
+ 	2017-12-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/79650
+ 	* pt.c (convert_nontype_argument): Diagnose
+ 	reduced_constant_expression_p expressions that aren't INTEGER_CST.
+ 
+ 	2017-12-06  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/80259
+ 	* decl2.c (grokfield): Diagnose = delete redefinition of a friend.
+ 
+ 	2017-11-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	* parser.c (cp_parser_omp_declare): Change return type to bool from
+ 	void, return true for declare simd.
+ 	(cp_parser_pragma): Return cp_parser_omp_declare returned value
+ 	rather than always false.
+ 
+ 	2017-11-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/82781
+ 	* constexpr.c (cxx_eval_vector_conditional_expression): New function.
+ 	(cxx_eval_constant_expression) <case VEC_COND_EXPR>: Use it instead
+ 	of cxx_eval_conditional_expression.
+ 
+ 2018-03-29  Ville Voutilainen  <ville.voutilainen@gmail.com>
+ 
+ 	Backport from mainline
+ 	2018-03-23  Ville Voutilainen  <ville.voutilainen@gmail.com>
+ 
+ 	Implement P0962
+ 	* parser.c (cp_parser_perform_range_for_lookup): Change
+ 	the condition for deciding whether to use members.
+ 
+ 2018-03-23  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/78489 - Substitution in wrong order
+ 	PR c++/84489
+ 	* pt.c (type_unification_real): Revert last two changes.
+ 
+ 2018-03-09  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/84785 - ICE with alias template and default targs.
+ 	* pt.c (type_unification_real): Set processing_template_decl if
+ 	saw_undeduced == 1.
+ 
+ 2018-03-03  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/84686 - missing volatile loads.
+ 	* cvt.c (convert_to_void): Call maybe_undo_parenthesized_ref.
+ 
+ 2018-03-02  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/84489 - dependent default template argument
+ 	* pt.c (type_unification_real): Handle early substitution failure.
+ 
+ 2018-02-28  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/71784 - ICE with ref-qualifier and explicit specialization.
+ 	* pt.c (determine_specialization): Check ref-qualifier.
+ 
+ 2018-02-26  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/84441 - ICE with base initialized from ?:
+ 	* call.c (unsafe_copy_elision_p): Handle COND_EXPR.
+ 
+ 	PR c++/84520 - ICE with generic lambda in NSDMI.
+ 	* lambda.c (lambda_expr_this_capture): Don't look for fake NSDMI
+ 	'this' in a generic lambda instantiation.
+ 
+ 2018-02-16  Jason Merrill  <jason@redhat.com>
+ 
+ 	PR c++/84151 - unnecessary volatile load with static member.
+ 	* call.c (build_new_method_call_1): Avoid loading from a volatile
+ 	lvalue used as the object argument for a static member function.
+ 
+ 2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-09-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/81314
+ 	* cp-gimplify.c (omp_var_to_track): Look through references.
+ 	(omp_cxx_notice_variable): Likewise.
+ 
+ 2017-08-14  Paolo Carlini  <paolo.carlini@oracle.com>
+ 
+ 	PR c++/71570
+ 	* lambda.c (add_capture): Early return if we cannot capture by
+ 	reference.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/cp/call.c gcc-6.5.0/gcc/cp/call.c
*** gcc-6.4.0/gcc/cp/call.c	Wed Apr 12 19:23:30 2017
--- gcc-6.5.0/gcc/cp/call.c	Mon Jun 25 17:30:03 2018
*************** convert_arg_to_ellipsis (tree arg, tsubs
*** 6837,6843 ****
  		     "passing objects of non-trivially-copyable "
  		     "type %q#T through %<...%> is conditionally supported",
  		     arg_type);
! 	  return cp_build_addr_expr (arg, complain);
  	}
      }
  
--- 6837,6843 ----
  		     "passing objects of non-trivially-copyable "
  		     "type %q#T through %<...%> is conditionally supported",
  		     arg_type);
! 	  return build1 (ADDR_EXPR, build_reference_type (arg_type), arg);
  	}
      }
  
*************** unsafe_copy_elision_p (tree target, tree
*** 7189,7194 ****
--- 7189,7203 ----
    /* build_compound_expr pushes COMPOUND_EXPR inside TARGET_EXPR.  */
    while (TREE_CODE (init) == COMPOUND_EXPR)
      init = TREE_OPERAND (init, 1);
+   if (TREE_CODE (init) == COND_EXPR)
+     {
+       /* We'll end up copying from each of the arms of the COND_EXPR directly
+ 	 into the target, so look at them. */
+       if (tree op = TREE_OPERAND (init, 1))
+ 	if (unsafe_copy_elision_p (target, op))
+ 	  return true;
+       return unsafe_copy_elision_p (target, TREE_OPERAND (init, 2));
+     }
    return (TREE_CODE (init) == AGGR_INIT_EXPR
  	  && !AGGR_INIT_VIA_CTOR_P (init));
  }
*************** build_over_call (struct z_candidate *can
*** 7569,7575 ****
        tree *fargs = (!nargs ? argarray
  			    : (tree *) alloca (nargs * sizeof (tree)));
        for (j = 0; j < nargs; j++)
! 	fargs[j] = maybe_constant_value (argarray[j]);
  
        check_function_arguments (input_location, TREE_TYPE (fn), nargs, fargs);
      }
--- 7578,7592 ----
        tree *fargs = (!nargs ? argarray
  			    : (tree *) alloca (nargs * sizeof (tree)));
        for (j = 0; j < nargs; j++)
! 	{
! 	  /* For -Wformat undo the implicit passing by hidden reference
! 	     done by convert_arg_to_ellipsis.  */
! 	  if (TREE_CODE (argarray[j]) == ADDR_EXPR
! 	      && TREE_CODE (TREE_TYPE (argarray[j])) == REFERENCE_TYPE)
! 	    fargs[j] = TREE_OPERAND (argarray[j], 0);
! 	  else
! 	    fargs[j] = maybe_constant_value (argarray[j]);
! 	}
  
        check_function_arguments (input_location, TREE_TYPE (fn), nargs, fargs);
      }
*************** build_new_method_call_1 (tree instance,
*** 8437,8444 ****
  	      if (TREE_CODE (TREE_TYPE (fn)) != METHOD_TYPE
  		  && !is_dummy_object (instance)
  		  && TREE_SIDE_EFFECTS (instance))
! 		call = build2 (COMPOUND_EXPR, TREE_TYPE (call),
! 			       instance, call);
  	      else if (call != error_mark_node
  		       && DECL_DESTRUCTOR_P (cand->fn)
  		       && !VOID_TYPE_P (TREE_TYPE (call)))
--- 8454,8467 ----
  	      if (TREE_CODE (TREE_TYPE (fn)) != METHOD_TYPE
  		  && !is_dummy_object (instance)
  		  && TREE_SIDE_EFFECTS (instance))
! 		{
! 		  /* But avoid the implicit lvalue-rvalue conversion when 'a'
! 		     is volatile.  */
! 		  tree a = instance;
! 		  if (TREE_THIS_VOLATILE (a))
! 		    a = build_this (a);
! 		  call = build2 (COMPOUND_EXPR, TREE_TYPE (call), a, call);
! 		}
  	      else if (call != error_mark_node
  		       && DECL_DESTRUCTOR_P (cand->fn)
  		       && !VOID_TYPE_P (TREE_TYPE (call)))
diff -Nrcpad gcc-6.4.0/gcc/cp/class.c gcc-6.5.0/gcc/cp/class.c
*** gcc-6.4.0/gcc/cp/class.c	Wed Dec  7 22:26:26 2016
--- gcc-6.5.0/gcc/cp/class.c	Mon Jun 25 17:39:55 2018
*************** fixup_type_variants (tree t)
*** 1999,2010 ****
  static void
  fixup_may_alias (tree klass)
  {
!   tree t;
  
    for (t = TYPE_POINTER_TO (klass); t; t = TYPE_NEXT_PTR_TO (t))
!     TYPE_REF_CAN_ALIAS_ALL (t) = true;
    for (t = TYPE_REFERENCE_TO (klass); t; t = TYPE_NEXT_REF_TO (t))
!     TYPE_REF_CAN_ALIAS_ALL (t) = true;
  }
  
  /* Early variant fixups: we apply attributes at the beginning of the class
--- 1999,2012 ----
  static void
  fixup_may_alias (tree klass)
  {
!   tree t, v;
  
    for (t = TYPE_POINTER_TO (klass); t; t = TYPE_NEXT_PTR_TO (t))
!     for (v = TYPE_MAIN_VARIANT (t); v; v = TYPE_NEXT_VARIANT (v))
!       TYPE_REF_CAN_ALIAS_ALL (v) = true;
    for (t = TYPE_REFERENCE_TO (klass); t; t = TYPE_NEXT_REF_TO (t))
!     for (v = TYPE_MAIN_VARIANT (t); v; v = TYPE_NEXT_VARIANT (v))
!       TYPE_REF_CAN_ALIAS_ALL (v) = true;
  }
  
  /* Early variant fixups: we apply attributes at the beginning of the class
*************** update_vtable_entry_for_fn (tree t, tree
*** 2667,2685 ****
  	     order.  Of course it is lame that we have to repeat the
  	     search here anyway -- we should really be caching pieces
  	     of the vtable and avoiding this repeated work.  */
! 	  tree thunk_binfo, base_binfo;
  
  	  /* Find the base binfo within the overriding function's
  	     return type.  We will always find a thunk_binfo, except
  	     when the covariancy is invalid (which we will have
  	     already diagnosed).  */
! 	  for (base_binfo = TYPE_BINFO (base_return),
! 	       thunk_binfo = TYPE_BINFO (over_return);
! 	       thunk_binfo;
! 	       thunk_binfo = TREE_CHAIN (thunk_binfo))
! 	    if (SAME_BINFO_TYPE_P (BINFO_TYPE (thunk_binfo),
! 				   BINFO_TYPE (base_binfo)))
! 	      break;
  
  	  /* See if virtual inheritance is involved.  */
  	  for (virtual_offset = thunk_binfo;
--- 2669,2688 ----
  	     order.  Of course it is lame that we have to repeat the
  	     search here anyway -- we should really be caching pieces
  	     of the vtable and avoiding this repeated work.  */
! 	  tree thunk_binfo = NULL_TREE;
! 	  tree base_binfo = TYPE_BINFO (base_return);
  
  	  /* Find the base binfo within the overriding function's
  	     return type.  We will always find a thunk_binfo, except
  	     when the covariancy is invalid (which we will have
  	     already diagnosed).  */
! 	  if (base_binfo)
! 	    for (thunk_binfo = TYPE_BINFO (over_return); thunk_binfo;
! 		 thunk_binfo = TREE_CHAIN (thunk_binfo))
! 	      if (SAME_BINFO_TYPE_P (BINFO_TYPE (thunk_binfo),
! 				     BINFO_TYPE (base_binfo)))
! 		break;
! 	  gcc_assert (thunk_binfo || errorcount);
  
  	  /* See if virtual inheritance is involved.  */
  	  for (virtual_offset = thunk_binfo;
diff -Nrcpad gcc-6.4.0/gcc/cp/constexpr.c gcc-6.5.0/gcc/cp/constexpr.c
*** gcc-6.4.0/gcc/cp/constexpr.c	Wed May 31 18:53:57 2017
--- gcc-6.5.0/gcc/cp/constexpr.c	Mon Jun 25 17:24:06 2018
*************** cxx_eval_conditional_expression (const c
*** 1919,1924 ****
--- 1919,1963 ----
  				       jump_target);
  }
  
+ /* Subroutine of cxx_eval_constant_expression.
+    Attempt to evaluate vector condition expressions.  Unlike
+    cxx_eval_conditional_expression, VEC_COND_EXPR acts like a normal
+    ternary arithmetics operation, where all 3 arguments have to be
+    evaluated as constants and then folding computes the result from
+    them.  */
+ 
+ static tree
+ cxx_eval_vector_conditional_expression (const constexpr_ctx *ctx, tree t,
+ 					bool *non_constant_p, bool *overflow_p)
+ {
+   tree arg1 = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 0),
+ 					    /*lval*/false,
+ 					    non_constant_p, overflow_p);
+   VERIFY_CONSTANT (arg1);
+   tree arg2 = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 1),
+ 					    /*lval*/false,
+ 					    non_constant_p, overflow_p);
+   VERIFY_CONSTANT (arg2);
+   tree arg3 = cxx_eval_constant_expression (ctx, TREE_OPERAND (t, 2),
+ 					    /*lval*/false,
+ 					    non_constant_p, overflow_p);
+   VERIFY_CONSTANT (arg3);
+   location_t loc = EXPR_LOCATION (t);
+   tree type = TREE_TYPE (t);
+   tree r = fold_ternary_loc (loc, VEC_COND_EXPR, type, arg1, arg2, arg3);
+   if (r == NULL_TREE)
+     {
+       if (arg1 == TREE_OPERAND (t, 0)
+ 	  && arg2 == TREE_OPERAND (t, 1)
+ 	  && arg3 == TREE_OPERAND (t, 2))
+ 	r = t;
+       else
+ 	r = build3_loc (loc, VEC_COND_EXPR, type, arg1, arg2, arg3);
+     }
+   VERIFY_CONSTANT (r);
+   return r;
+ }
+ 
  /* Returns less than, equal to, or greater than zero if KEY is found to be
     less than, to match, or to be greater than the constructor_elt's INDEX.  */
  
*************** cxx_eval_vec_init_1 (const constexpr_ctx
*** 2698,2706 ****
  	  if (!real_lvalue_p (init))
  	    eltinit = move (eltinit);
  	  eltinit = force_rvalue (eltinit, tf_warning_or_error);
! 	  eltinit = (cxx_eval_constant_expression
! 		     (&new_ctx, eltinit, lval,
! 		      non_constant_p, overflow_p));
  	}
        if (*non_constant_p && !ctx->quiet)
  	break;
--- 2737,2744 ----
  	  if (!real_lvalue_p (init))
  	    eltinit = move (eltinit);
  	  eltinit = force_rvalue (eltinit, tf_warning_or_error);
! 	  eltinit = cxx_eval_constant_expression (&new_ctx, eltinit, lval,
! 						  non_constant_p, overflow_p);
  	}
        if (*non_constant_p && !ctx->quiet)
  	break;
*************** cxx_eval_vec_init_1 (const constexpr_ctx
*** 2713,2724 ****
        else
  	CONSTRUCTOR_APPEND_ELT (*p, idx, eltinit);
        /* Reuse the result of cxx_eval_constant_expression call
! 	  from the first iteration to all others if it is a constant
! 	  initializer that doesn't require relocations.  */
        if (reuse
  	  && max > 1
! 	  && (initializer_constant_valid_p (eltinit, TREE_TYPE (eltinit))
! 	      == null_pointer_node))
  	{
  	  if (new_ctx.ctor != ctx->ctor)
  	    eltinit = new_ctx.ctor;
--- 2751,2763 ----
        else
  	CONSTRUCTOR_APPEND_ELT (*p, idx, eltinit);
        /* Reuse the result of cxx_eval_constant_expression call
! 	 from the first iteration to all others if it is a constant
! 	 initializer that doesn't require relocations.  */
        if (reuse
  	  && max > 1
! 	  && (eltinit == NULL_TREE
! 	      || (initializer_constant_valid_p (eltinit, TREE_TYPE (eltinit))
! 		  == null_pointer_node)))
  	{
  	  if (new_ctx.ctor != ctx->ctor)
  	    eltinit = new_ctx.ctor;
*************** cxx_eval_constant_expression (const cons
*** 4031,4042 ****
  					      jump_target);
  	  break;
  	}
-       /* FALLTHRU */
-     case VEC_COND_EXPR:
        r = cxx_eval_conditional_expression (ctx, t, lval,
  					   non_constant_p, overflow_p,
  					   jump_target);
        break;
  
      case CONSTRUCTOR:
        if (TREE_CONSTANT (t))
--- 4070,4083 ----
  					      jump_target);
  	  break;
  	}
        r = cxx_eval_conditional_expression (ctx, t, lval,
  					   non_constant_p, overflow_p,
  					   jump_target);
        break;
+     case VEC_COND_EXPR:
+       r = cxx_eval_vector_conditional_expression (ctx, t, non_constant_p,
+ 						  overflow_p);
+       break;
  
      case CONSTRUCTOR:
        if (TREE_CONSTANT (t))
diff -Nrcpad gcc-6.4.0/gcc/cp/cp-gimplify.c gcc-6.5.0/gcc/cp/cp-gimplify.c
*** gcc-6.4.0/gcc/cp/cp-gimplify.c	Thu Jun 22 11:13:29 2017
--- gcc-6.5.0/gcc/cp/cp-gimplify.c	Fri Oct 12 17:27:56 2018
*************** omp_var_to_track (tree decl)
*** 853,858 ****
--- 853,860 ----
    tree type = TREE_TYPE (decl);
    if (is_invisiref_parm (decl))
      type = TREE_TYPE (type);
+   else if (TREE_CODE (type) == REFERENCE_TYPE)
+     type = TREE_TYPE (type);
    while (TREE_CODE (type) == ARRAY_TYPE)
      type = TREE_TYPE (type);
    if (type == error_mark_node || !CLASS_TYPE_P (type))
*************** omp_cxx_notice_variable (struct cp_gener
*** 905,910 ****
--- 907,914 ----
  	      tree type = TREE_TYPE (decl);
  	      if (is_invisiref_parm (decl))
  		type = TREE_TYPE (type);
+ 	      else if (TREE_CODE (type) == REFERENCE_TYPE)
+ 		type = TREE_TYPE (type);
  	      while (TREE_CODE (type) == ARRAY_TYPE)
  		type = TREE_TYPE (type);
  	      get_copy_ctor (type, tf_none);
*************** cp_genericize_r (tree *stmt_p, int *walk
*** 1060,1065 ****
--- 1064,1070 ----
        if (h)
  	{
  	  *stmt_p = h->to;
+ 	  TREE_USED (h->to) |= TREE_USED (stmt);
  	  *walk_subtrees = 0;
  	  return NULL;
  	}
diff -Nrcpad gcc-6.4.0/gcc/cp/cp-tree.h gcc-6.5.0/gcc/cp/cp-tree.h
*** gcc-6.4.0/gcc/cp/cp-tree.h	Tue Mar 14 16:03:10 2017
--- gcc-6.5.0/gcc/cp/cp-tree.h	Mon Jun 25 17:32:10 2018
*************** extern bool cxx_type_hash_eq			(const_tr
*** 6571,6576 ****
--- 6571,6577 ----
  
  extern void cxx_print_statistics		(void);
  extern bool maybe_warn_zero_as_null_pointer_constant (tree, location_t);
+ extern void cp_warn_deprecated_use		(tree);
  
  /* in ptree.c */
  extern void cxx_print_xnode			(FILE *, tree, int);
diff -Nrcpad gcc-6.4.0/gcc/cp/cvt.c gcc-6.5.0/gcc/cp/cvt.c
*** gcc-6.4.0/gcc/cp/cvt.c	Wed Feb 10 19:12:32 2016
--- gcc-6.5.0/gcc/cp/cvt.c	Mon Mar  5 14:28:15 2018
*************** convert_to_void (tree expr, impl_conv_vo
*** 932,937 ****
--- 932,939 ----
        || TREE_TYPE (expr) == error_mark_node)
      return error_mark_node;
  
+   expr = maybe_undo_parenthesized_ref (expr);
+ 
    if (implicit == ICV_CAST)
      mark_exp_read (expr);
    else
diff -Nrcpad gcc-6.4.0/gcc/cp/decl.c gcc-6.5.0/gcc/cp/decl.c
*** gcc-6.4.0/gcc/cp/decl.c	Fri May  5 21:41:16 2017
--- gcc-6.5.0/gcc/cp/decl.c	Mon Jun 25 17:33:40 2018
*************** reshape_init_class (tree type, reshape_i
*** 5652,5659 ****
  	    return error_mark_node;
  
  	  if (TREE_CODE (d->cur->index) == FIELD_DECL)
! 	    /* We already reshaped this.  */
! 	    gcc_assert (d->cur->index == field);
  	  else if (TREE_CODE (d->cur->index) == IDENTIFIER_NODE)
  	    field = lookup_field_1 (type, d->cur->index, /*want_type=*/false);
  	  else
--- 5652,5669 ----
  	    return error_mark_node;
  
  	  if (TREE_CODE (d->cur->index) == FIELD_DECL)
! 	    {
! 	      /* We already reshaped this.  */
! 	      if (field != d->cur->index)
! 		{
! 		  tree id = DECL_NAME (d->cur->index);
! 		  gcc_assert (id);
! 		  gcc_checking_assert (lookup_field_1 (type, id,
! 						       /*want_type=*/false)
! 				       == d->cur->index);
! 		  field = d->cur->index;
! 		}
! 	    }
  	  else if (TREE_CODE (d->cur->index) == IDENTIFIER_NODE)
  	    field = lookup_field_1 (type, d->cur->index, /*want_type=*/false);
  	  else
*************** grokdeclarator (const cp_declarator *dec
*** 9594,9600 ****
       suppress reports of deprecated items.  */
    if (type && TREE_DEPRECATED (type)
        && deprecated_state != DEPRECATED_SUPPRESS)
!     warn_deprecated_use (type, NULL_TREE);
    if (type && TREE_CODE (type) == TYPE_DECL)
      {
        typedef_decl = type;
--- 9604,9610 ----
       suppress reports of deprecated items.  */
    if (type && TREE_DEPRECATED (type)
        && deprecated_state != DEPRECATED_SUPPRESS)
!     cp_warn_deprecated_use (type);
    if (type && TREE_CODE (type) == TYPE_DECL)
      {
        typedef_decl = type;
*************** grokdeclarator (const cp_declarator *dec
*** 9602,9608 ****
        if (TREE_DEPRECATED (type)
  	  && DECL_ARTIFICIAL (typedef_decl)
  	  && deprecated_state != DEPRECATED_SUPPRESS)
! 	warn_deprecated_use (type, NULL_TREE);
      }
    /* No type at all: default to `int', and set DEFAULTED_INT
       because it was not a user-defined typedef.  */
--- 9612,9618 ----
        if (TREE_DEPRECATED (type)
  	  && DECL_ARTIFICIAL (typedef_decl)
  	  && deprecated_state != DEPRECATED_SUPPRESS)
! 	cp_warn_deprecated_use (type);
      }
    /* No type at all: default to `int', and set DEFAULTED_INT
       because it was not a user-defined typedef.  */
*************** grokdeclarator (const cp_declarator *dec
*** 10287,10294 ****
  		  error ("a conversion function cannot have a trailing return type");
  	      }
  
! 	    arg_types = grokparms (declarator->u.function.parameters,
! 				   &parms);
  
  	    if (inner_declarator
  		&& inner_declarator->kind == cdk_id
--- 10297,10314 ----
  		  error ("a conversion function cannot have a trailing return type");
  	      }
  
! 	    tree pushed_scope = NULL_TREE;
! 	    if (funcdecl_p
! 		&& decl_context != FIELD
! 		&& inner_declarator->u.id.qualifying_scope
! 		&& CLASS_TYPE_P (inner_declarator->u.id.qualifying_scope))
! 	      pushed_scope
! 		= push_scope (inner_declarator->u.id.qualifying_scope);
! 
! 	    arg_types = grokparms (declarator->u.function.parameters, &parms);
! 
! 	    if (pushed_scope)
! 	      pop_scope (pushed_scope);
  
  	    if (inner_declarator
  		&& inner_declarator->kind == cdk_id
*************** grokparms (tree parmlist, tree *parms)
*** 11782,11788 ****
  	    {
  	      tree deptype = type_is_deprecated (type);
  	      if (deptype)
! 		warn_deprecated_use (deptype, NULL_TREE);
  	    }
  
  	  /* Top-level qualifiers on the parameters are
--- 11802,11808 ----
  	    {
  	      tree deptype = type_is_deprecated (type);
  	      if (deptype)
! 		cp_warn_deprecated_use (deptype);
  	    }
  
  	  /* Top-level qualifiers on the parameters are
diff -Nrcpad gcc-6.4.0/gcc/cp/decl2.c gcc-6.5.0/gcc/cp/decl2.c
*** gcc-6.4.0/gcc/cp/decl2.c	Mon Feb 13 18:12:17 2017
--- gcc-6.5.0/gcc/cp/decl2.c	Mon Jun 25 16:58:35 2018
*************** grokfield (const cp_declarator *declarat
*** 963,971 ****
  	{
  	  if (init == ridpointers[(int)RID_DELETE])
  	    {
! 	      DECL_DELETED_FN (value) = 1;
! 	      DECL_DECLARED_INLINE_P (value) = 1;
! 	      DECL_INITIAL (value) = error_mark_node;
  	    }
  	  else if (init == ridpointers[(int)RID_DEFAULT])
  	    {
--- 963,980 ----
  	{
  	  if (init == ridpointers[(int)RID_DELETE])
  	    {
! 	      if (friendp && decl_defined_p (value))
! 		{
! 		  error ("redefinition of %q#D", value);
! 		  inform (DECL_SOURCE_LOCATION (value),
! 			  "%q#D previously defined here", value);
! 		}
! 	      else
! 		{
! 		  DECL_DELETED_FN (value) = 1;
! 		  DECL_DECLARED_INLINE_P (value) = 1;
! 		  DECL_INITIAL (value) = error_mark_node;
! 		}
  	    }
  	  else if (init == ridpointers[(int)RID_DEFAULT])
  	    {
diff -Nrcpad gcc-6.4.0/gcc/cp/lambda.c gcc-6.5.0/gcc/cp/lambda.c
*** gcc-6.4.0/gcc/cp/lambda.c	Tue Mar 21 17:40:40 2017
--- gcc-6.5.0/gcc/cp/lambda.c	Tue Feb 27 04:22:24 2018
*************** add_capture (tree lambda, tree id, tree
*** 491,497 ****
  	{
  	  type = build_reference_type (type);
  	  if (!dependent_type_p (type) && !real_lvalue_p (initializer))
! 	    error ("cannot capture %qE by reference", initializer);
  	}
        else
  	{
--- 491,500 ----
  	{
  	  type = build_reference_type (type);
  	  if (!dependent_type_p (type) && !real_lvalue_p (initializer))
! 	    {
! 	      error ("cannot capture %qE by reference", initializer);
! 	      return error_mark_node;
! 	    }
  	}
        else
  	{
*************** lambda_expr_this_capture (tree lambda, b
*** 662,672 ****
                                      lambda_stack);
  
  	  if (LAMBDA_EXPR_EXTRA_SCOPE (tlambda)
  	      && TREE_CODE (LAMBDA_EXPR_EXTRA_SCOPE (tlambda)) == FIELD_DECL)
  	    {
  	      /* In an NSDMI, we don't have a function to look up the decl in,
  		 but the fake 'this' pointer that we're using for parsing is
! 		 in scope_chain.  */
  	      init = scope_chain->x_current_class_ptr;
  	      gcc_checking_assert
  		(init && (TREE_TYPE (TREE_TYPE (init))
--- 665,678 ----
                                      lambda_stack);
  
  	  if (LAMBDA_EXPR_EXTRA_SCOPE (tlambda)
+ 	      && !COMPLETE_TYPE_P (LAMBDA_EXPR_CLOSURE (tlambda))
  	      && TREE_CODE (LAMBDA_EXPR_EXTRA_SCOPE (tlambda)) == FIELD_DECL)
  	    {
  	      /* In an NSDMI, we don't have a function to look up the decl in,
  		 but the fake 'this' pointer that we're using for parsing is
! 		 in scope_chain.  But if the closure is already complete, we're
! 	         in an instantiation of a generic lambda, and the fake 'this'
! 	         is gone.  */
  	      init = scope_chain->x_current_class_ptr;
  	      gcc_checking_assert
  		(init && (TREE_TYPE (TREE_TYPE (init))
diff -Nrcpad gcc-6.4.0/gcc/cp/name-lookup.c gcc-6.5.0/gcc/cp/name-lookup.c
*** gcc-6.4.0/gcc/cp/name-lookup.c	Wed Jan 11 20:49:50 2017
--- gcc-6.5.0/gcc/cp/name-lookup.c	Mon Jun 25 17:42:12 2018
*************** handle_namespace_attrs (tree ns, tree at
*** 3633,3638 ****
--- 3633,3641 ----
    tree d;
    bool saw_vis = false;
  
+   if (attributes == error_mark_node)
+     return false;
+ 
    for (d = attributes; d; d = TREE_CHAIN (d))
      {
        tree name = get_attribute_name (d);
diff -Nrcpad gcc-6.4.0/gcc/cp/optimize.c gcc-6.5.0/gcc/cp/optimize.c
*** gcc-6.4.0/gcc/cp/optimize.c	Tue Jan 26 21:34:16 2016
--- gcc-6.5.0/gcc/cp/optimize.c	Tue Oct 23 17:16:55 2018
*************** update_cloned_parm (tree parm, tree clon
*** 46,51 ****
--- 46,53 ----
    /* We may have taken its address.  */
    TREE_ADDRESSABLE (cloned_parm) = TREE_ADDRESSABLE (parm);
  
+   DECL_BY_REFERENCE (cloned_parm) = DECL_BY_REFERENCE (parm);
+ 
    /* The definition might have different constness.  */
    TREE_READONLY (cloned_parm) = TREE_READONLY (parm);
  
diff -Nrcpad gcc-6.4.0/gcc/cp/parser.c gcc-6.5.0/gcc/cp/parser.c
*** gcc-6.4.0/gcc/cp/parser.c	Sat Jun 24 10:50:08 2017
--- gcc-6.5.0/gcc/cp/parser.c	Tue Jun 26 11:33:48 2018
*************** cp_parser_binary_expression (cp_parser*
*** 8920,8931 ****
        if (no_toplevel_fold_p
  	  && lookahead_prec <= current.prec
  	  && sp == stack)
! 	current.lhs = build2_loc (combined_loc,
! 				  current.tree_type,
! 				  TREE_CODE_CLASS (current.tree_type)
! 				  == tcc_comparison
! 				  ? boolean_type_node : TREE_TYPE (current.lhs),
! 				  current.lhs, rhs);
        else
          {
            current.lhs = build_x_binary_op (combined_loc, current.tree_type,
--- 8920,8939 ----
        if (no_toplevel_fold_p
  	  && lookahead_prec <= current.prec
  	  && sp == stack)
! 	{
! 	  if (current.lhs == error_mark_node || rhs == error_mark_node)
! 	    current.lhs = error_mark_node;
! 	  else
! 	    {
! 	      current.lhs
! 		= build_min (current.tree_type,
! 			     TREE_CODE_CLASS (current.tree_type)
! 			     == tcc_comparison
! 			     ? boolean_type_node : TREE_TYPE (current.lhs),
! 			     current.lhs.get_value (), rhs.get_value ());
! 	      SET_EXPR_LOCATION (current.lhs, combined_loc);
! 	    }
! 	}
        else
          {
            current.lhs = build_x_binary_op (combined_loc, current.tree_type,
*************** cp_parser_statement (cp_parser* parser,
*** 10559,10564 ****
--- 10567,10584 ----
  		"attributes at the beginning of statement are ignored");
  }
  
+ /* Append ATTR to attribute list ATTRS.  */
+ 
+ static tree
+ attr_chainon (tree attrs, tree attr)
+ {
+   if (attrs == error_mark_node)
+     return error_mark_node;
+   if (attr == error_mark_node)
+     return error_mark_node;
+   return chainon (attrs, attr);
+ }
+ 
  /* Parse the label for a labeled-statement, i.e.
  
     identifier :
*************** cp_parser_label_for_labeled_statement (c
*** 10664,10670 ****
        else if (!cp_parser_parse_definitely (parser))
  	;
        else
! 	attributes = chainon (attributes, attrs);
      }
  
    if (attributes != NULL_TREE)
--- 10684,10690 ----
        else if (!cp_parser_parse_definitely (parser))
  	;
        else
! 	attributes = attr_chainon (attributes, attrs);
      }
  
    if (attributes != NULL_TREE)
*************** cp_parser_perform_range_for_lookup (tree
*** 11459,11465 ****
  				  /*protect=*/2, /*want_type=*/false,
  				  tf_warning_or_error);
  
!       if (member_begin != NULL_TREE || member_end != NULL_TREE)
  	{
  	  /* Use the member functions.  */
  	  if (member_begin != NULL_TREE)
--- 11479,11485 ----
  				  /*protect=*/2, /*want_type=*/false,
  				  tf_warning_or_error);
  
!       if (member_begin != NULL_TREE && member_end != NULL_TREE)
  	{
  	  /* Use the member functions.  */
  	  if (member_begin != NULL_TREE)
*************** cp_parser_decl_specifier_seq (cp_parser*
*** 12634,12641 ****
  		  else
  		    {
  		      decl_specs->std_attributes
! 			= chainon (decl_specs->std_attributes,
! 				   attrs);
  		      if (decl_specs->locations[ds_std_attribute] == 0)
  			decl_specs->locations[ds_std_attribute] = token->location;
  		    }
--- 12654,12660 ----
  		  else
  		    {
  		      decl_specs->std_attributes
! 			= attr_chainon (decl_specs->std_attributes, attrs);
  		      if (decl_specs->locations[ds_std_attribute] == 0)
  			decl_specs->locations[ds_std_attribute] = token->location;
  		    }
*************** cp_parser_decl_specifier_seq (cp_parser*
*** 12643,12651 ****
  		}
  	    }
  
! 	    decl_specs->attributes
! 	      = chainon (decl_specs->attributes,
! 			 attrs);
  	  if (decl_specs->locations[ds_attribute] == 0)
  	    decl_specs->locations[ds_attribute] = token->location;
  	  continue;
--- 12662,12669 ----
  		}
  	    }
  
! 	  decl_specs->attributes
! 	    = attr_chainon (decl_specs->attributes, attrs);
  	  if (decl_specs->locations[ds_attribute] == 0)
  	    decl_specs->locations[ds_attribute] = token->location;
  	  continue;
*************** cp_parser_namespace_definition (cp_parse
*** 17575,17581 ****
    if (post_ident_attribs)
      {
        if (attribs)
!         attribs = chainon (attribs, post_ident_attribs);
        else
          attribs = post_ident_attribs;
      }
--- 17593,17599 ----
    if (post_ident_attribs)
      {
        if (attribs)
!         attribs = attr_chainon (attribs, post_ident_attribs);
        else
          attribs = post_ident_attribs;
      }
*************** cp_parser_init_declarator (cp_parser* pa
*** 18705,18711 ****
        decl = grokfield (declarator, decl_specifiers,
  			initializer, !is_non_constant_init,
  			/*asmspec=*/NULL_TREE,
! 			chainon (attributes, prefix_attributes));
        if (decl && TREE_CODE (decl) == FUNCTION_DECL)
  	cp_parser_save_default_args (parser, decl);
        cp_finalize_omp_declare_simd (parser, decl);
--- 18723,18729 ----
        decl = grokfield (declarator, decl_specifiers,
  			initializer, !is_non_constant_init,
  			/*asmspec=*/NULL_TREE,
! 			attr_chainon (attributes, prefix_attributes));
        if (decl && TREE_CODE (decl) == FUNCTION_DECL)
  	cp_parser_save_default_args (parser, decl);
        cp_finalize_omp_declare_simd (parser, decl);
*************** cp_parser_type_specifier_seq (cp_parser*
*** 20058,20066 ****
        /* Check for attributes first.  */
        if (cp_next_tokens_can_be_attribute_p (parser))
  	{
! 	  type_specifier_seq->attributes =
! 	    chainon (type_specifier_seq->attributes,
! 		     cp_parser_attributes_opt (parser));
  	  continue;
  	}
  
--- 20076,20084 ----
        /* Check for attributes first.  */
        if (cp_next_tokens_can_be_attribute_p (parser))
  	{
! 	  type_specifier_seq->attributes
! 	    = attr_chainon (type_specifier_seq->attributes,
! 			    cp_parser_attributes_opt (parser));
  	  continue;
  	}
  
*************** cp_parser_parameter_declaration (cp_pars
*** 20539,20546 ****
        parser->default_arg_ok_p = saved_default_arg_ok_p;
        /* After the declarator, allow more attributes.  */
        decl_specifiers.attributes
! 	= chainon (decl_specifiers.attributes,
! 		   cp_parser_attributes_opt (parser));
  
        /* If the declarator is a template parameter pack, remember that and
  	 clear the flag in the declarator itself so we don't get errors
--- 20557,20564 ----
        parser->default_arg_ok_p = saved_default_arg_ok_p;
        /* After the declarator, allow more attributes.  */
        decl_specifiers.attributes
! 	= attr_chainon (decl_specifiers.attributes,
! 			cp_parser_attributes_opt (parser));
  
        /* If the declarator is a template parameter pack, remember that and
  	 clear the flag in the declarator itself so we don't get errors
*************** cp_parser_member_declaration (cp_parser*
*** 22491,22497 ****
  		 which are not.  */
  	      first_attribute = attributes;
  	      /* Combine the attributes.  */
! 	      attributes = chainon (prefix_attributes, attributes);
  
  	      /* Create the bitfield declaration.  */
  	      decl = grokbitfield (identifier
--- 22509,22515 ----
  		 which are not.  */
  	      first_attribute = attributes;
  	      /* Combine the attributes.  */
! 	      attributes = attr_chainon (prefix_attributes, attributes);
  
  	      /* Create the bitfield declaration.  */
  	      decl = grokbitfield (identifier
*************** cp_parser_member_declaration (cp_parser*
*** 22548,22554 ****
  		 which are not.  */
  	      first_attribute = attributes;
  	      /* Combine the attributes.  */
! 	      attributes = chainon (prefix_attributes, attributes);
  
  	      /* If it's an `=', then we have a constant-initializer or a
  		 pure-specifier.  It is not correct to parse the
--- 22566,22572 ----
  		 which are not.  */
  	      first_attribute = attributes;
  	      /* Combine the attributes.  */
! 	      attributes = attr_chainon (prefix_attributes, attributes);
  
  	      /* If it's an `=', then we have a constant-initializer or a
  		 pure-specifier.  It is not correct to parse the
*************** cp_parser_member_declaration (cp_parser*
*** 22662,22671 ****
  	  cp_finalize_oacc_routine (parser, decl, false);
  
  	  /* Reset PREFIX_ATTRIBUTES.  */
! 	  while (attributes && TREE_CHAIN (attributes) != first_attribute)
! 	    attributes = TREE_CHAIN (attributes);
! 	  if (attributes)
! 	    TREE_CHAIN (attributes) = NULL_TREE;
  
  	  /* If there is any qualification still in effect, clear it
  	     now; we will be starting fresh with the next declarator.  */
--- 22680,22692 ----
  	  cp_finalize_oacc_routine (parser, decl, false);
  
  	  /* Reset PREFIX_ATTRIBUTES.  */
! 	  if (attributes != error_mark_node)
! 	    {
! 	      while (attributes && TREE_CHAIN (attributes) != first_attribute)
! 		attributes = TREE_CHAIN (attributes);
! 	      if (attributes)
! 		TREE_CHAIN (attributes) = NULL_TREE;
! 	    }
  
  	  /* If there is any qualification still in effect, clear it
  	     now; we will be starting fresh with the next declarator.  */
*************** cp_parser_gnu_attributes_opt (cp_parser*
*** 23765,23771 ****
  	cp_parser_skip_to_end_of_statement (parser);
  
        /* Add these new attributes to the list.  */
!       attributes = chainon (attributes, attribute_list);
      }
  
    return attributes;
--- 23786,23792 ----
  	cp_parser_skip_to_end_of_statement (parser);
  
        /* Add these new attributes to the list.  */
!       attributes = attr_chainon (attributes, attribute_list);
      }
  
    return attributes;
*************** cp_parser_objc_class_ivars (cp_parser* p
*** 28876,28882 ****
  	     which are not.  */
  	  first_attribute = attributes;
  	  /* Combine the attributes.  */
! 	  attributes = chainon (prefix_attributes, attributes);
  
  	  if (width)
  	      /* Create the bitfield declaration.  */
--- 28897,28903 ----
  	     which are not.  */
  	  first_attribute = attributes;
  	  /* Combine the attributes.  */
! 	  attributes = attr_chainon (prefix_attributes, attributes);
  
  	  if (width)
  	      /* Create the bitfield declaration.  */
*************** cp_parser_objc_class_ivars (cp_parser* p
*** 28893,28902 ****
  	    objc_add_instance_variable (decl);
  
  	  /* Reset PREFIX_ATTRIBUTES.  */
! 	  while (attributes && TREE_CHAIN (attributes) != first_attribute)
! 	    attributes = TREE_CHAIN (attributes);
! 	  if (attributes)
! 	    TREE_CHAIN (attributes) = NULL_TREE;
  
  	  token = cp_lexer_peek_token (parser->lexer);
  
--- 28914,28926 ----
  	    objc_add_instance_variable (decl);
  
  	  /* Reset PREFIX_ATTRIBUTES.  */
! 	  if (attributes != error_mark_node)
! 	    {
! 	      while (attributes && TREE_CHAIN (attributes) != first_attribute)
! 		attributes = TREE_CHAIN (attributes);
! 	      if (attributes)
! 		TREE_CHAIN (attributes) = NULL_TREE;
! 	    }
  
  	  token = cp_lexer_peek_token (parser->lexer);
  
*************** cp_parser_objc_struct_declaration (cp_pa
*** 29426,29433 ****
  	 which are not.  */
        first_attribute = attributes;
        /* Combine the attributes.  */
!       attributes = chainon (prefix_attributes, attributes);
!       
        decl = grokfield (declarator, &declspecs,
  			NULL_TREE, /*init_const_expr_p=*/false,
  			NULL_TREE, attributes);
--- 29450,29457 ----
  	 which are not.  */
        first_attribute = attributes;
        /* Combine the attributes.  */
!       attributes = attr_chainon (prefix_attributes, attributes);
! 
        decl = grokfield (declarator, &declspecs,
  			NULL_TREE, /*init_const_expr_p=*/false,
  			NULL_TREE, attributes);
*************** cp_parser_objc_struct_declaration (cp_pa
*** 29436,29445 ****
  	return error_mark_node;
        
        /* Reset PREFIX_ATTRIBUTES.  */
!       while (attributes && TREE_CHAIN (attributes) != first_attribute)
! 	attributes = TREE_CHAIN (attributes);
!       if (attributes)
! 	TREE_CHAIN (attributes) = NULL_TREE;
  
        DECL_CHAIN (decl) = decls;
        decls = decl;
--- 29460,29472 ----
  	return error_mark_node;
        
        /* Reset PREFIX_ATTRIBUTES.  */
!       if (attributes != error_mark_node)
! 	{
! 	  while (attributes && TREE_CHAIN (attributes) != first_attribute)
! 	    attributes = TREE_CHAIN (attributes);
! 	  if (attributes)
! 	    TREE_CHAIN (attributes) = NULL_TREE;
! 	}
  
        DECL_CHAIN (decl) = decls;
        decls = decl;
*************** static tree
*** 33355,33361 ****
  cp_parser_omp_for_loop_init (cp_parser *parser,
  			     enum tree_code code,
  			     tree &this_pre_body,
! 			     vec<tree, va_gc> *for_block,
  			     tree &init,
  			     tree &orig_init,
  			     tree &decl,
--- 33382,33388 ----
  cp_parser_omp_for_loop_init (cp_parser *parser,
  			     enum tree_code code,
  			     tree &this_pre_body,
! 			     vec<tree, va_gc> *&for_block,
  			     tree &init,
  			     tree &orig_init,
  			     tree &decl,
*************** cp_parser_omp_declare_reduction (cp_pars
*** 36357,36363 ****
        initializer-clause[opt] new-line
     #pragma omp declare target new-line  */
  
! static void
  cp_parser_omp_declare (cp_parser *parser, cp_token *pragma_tok,
  		       enum pragma_context context)
  {
--- 36384,36390 ----
        initializer-clause[opt] new-line
     #pragma omp declare target new-line  */
  
! static bool
  cp_parser_omp_declare (cp_parser *parser, cp_token *pragma_tok,
  		       enum pragma_context context)
  {
*************** cp_parser_omp_declare (cp_parser *parser
*** 36371,36377 ****
  	  cp_lexer_consume_token (parser->lexer);
  	  cp_parser_omp_declare_simd (parser, pragma_tok,
  				      context);
! 	  return;
  	}
        cp_ensure_no_omp_declare_simd (parser);
        if (strcmp (p, "reduction") == 0)
--- 36398,36404 ----
  	  cp_lexer_consume_token (parser->lexer);
  	  cp_parser_omp_declare_simd (parser, pragma_tok,
  				      context);
! 	  return true;
  	}
        cp_ensure_no_omp_declare_simd (parser);
        if (strcmp (p, "reduction") == 0)
*************** cp_parser_omp_declare (cp_parser *parser
*** 36379,36401 ****
  	  cp_lexer_consume_token (parser->lexer);
  	  cp_parser_omp_declare_reduction (parser, pragma_tok,
  					   context);
! 	  return;
  	}
        if (!flag_openmp)  /* flag_openmp_simd  */
  	{
  	  cp_parser_skip_to_pragma_eol (parser, pragma_tok);
! 	  return;
  	}
        if (strcmp (p, "target") == 0)
  	{
  	  cp_lexer_consume_token (parser->lexer);
  	  cp_parser_omp_declare_target (parser, pragma_tok);
! 	  return;
  	}
      }
    cp_parser_error (parser, "expected %<simd%> or %<reduction%> "
  			   "or %<target%>");
    cp_parser_require_pragma_eol (parser, pragma_tok);
  }
  
  /* OpenMP 4.5:
--- 36406,36429 ----
  	  cp_lexer_consume_token (parser->lexer);
  	  cp_parser_omp_declare_reduction (parser, pragma_tok,
  					   context);
! 	  return false;
  	}
        if (!flag_openmp)  /* flag_openmp_simd  */
  	{
  	  cp_parser_skip_to_pragma_eol (parser, pragma_tok);
! 	  return false;
  	}
        if (strcmp (p, "target") == 0)
  	{
  	  cp_lexer_consume_token (parser->lexer);
  	  cp_parser_omp_declare_target (parser, pragma_tok);
! 	  return false;
  	}
      }
    cp_parser_error (parser, "expected %<simd%> or %<reduction%> "
  			   "or %<target%>");
    cp_parser_require_pragma_eol (parser, pragma_tok);
+   return false;
  }
  
  /* OpenMP 4.5:
*************** cp_parser_pragma (cp_parser *parser, enu
*** 37370,37377 ****
        return false;
  
      case PRAGMA_OMP_DECLARE_REDUCTION:
!       cp_parser_omp_declare (parser, pragma_tok, context);
!       return false;
  
      case PRAGMA_OACC_DECLARE:
        cp_parser_oacc_declare (parser, pragma_tok);
--- 37398,37404 ----
        return false;
  
      case PRAGMA_OMP_DECLARE_REDUCTION:
!       return cp_parser_omp_declare (parser, pragma_tok, context);
  
      case PRAGMA_OACC_DECLARE:
        cp_parser_oacc_declare (parser, pragma_tok);
diff -Nrcpad gcc-6.4.0/gcc/cp/pt.c gcc-6.5.0/gcc/cp/pt.c
*** gcc-6.4.0/gcc/cp/pt.c	Tue May 23 20:51:33 2017
--- gcc-6.5.0/gcc/cp/pt.c	Mon Jun 25 17:42:51 2018
*************** determine_specialization (tree template_
*** 2170,2179 ****
  	     that the const qualification is the same.  Since
  	     get_bindings does not try to merge the "this" parameter,
  	     we must do the comparison explicitly.  */
! 	  if (DECL_NONSTATIC_MEMBER_FUNCTION_P (fn)
! 	      && !same_type_p (TREE_VALUE (fn_arg_types),
! 			       TREE_VALUE (decl_arg_types)))
! 	    continue;
  
  	  /* Skip the "this" parameter and, for constructors of
  	     classes with virtual bases, the VTT parameter.  A
--- 2170,2186 ----
  	     that the const qualification is the same.  Since
  	     get_bindings does not try to merge the "this" parameter,
  	     we must do the comparison explicitly.  */
! 	  if (DECL_NONSTATIC_MEMBER_FUNCTION_P (fn))
! 	    {
! 	      if (!same_type_p (TREE_VALUE (fn_arg_types),
! 				TREE_VALUE (decl_arg_types)))
! 		continue;
! 
! 	      /* And the ref-qualification.  */
! 	      if (type_memfn_rqual (TREE_TYPE (decl))
! 		  != type_memfn_rqual (TREE_TYPE (fn)))
! 		continue;
! 	    }
  
  	  /* Skip the "this" parameter and, for constructors of
  	     classes with virtual bases, the VTT parameter.  A
*************** determine_specialization (tree template_
*** 2279,2284 ****
--- 2286,2296 ----
  			 decl_arg_types))
              continue;
  
+ 	  if (DECL_NONSTATIC_MEMBER_FUNCTION_P (fn)
+ 	      && (type_memfn_rqual (TREE_TYPE (decl))
+ 		  != type_memfn_rqual (TREE_TYPE (fn))))
+ 	    continue;
+ 
            // If the deduced arguments do not satisfy the constraints,
            // this is not a candidate.
            if (flag_concepts && !constraints_satisfied_p (fn))
*************** static void
*** 4772,4778 ****
  fixed_parameter_pack_p_1 (tree parm, struct find_parameter_pack_data *ppd)
  {
    /* A type parm can't refer to another parm.  */
!   if (TREE_CODE (parm) == TYPE_DECL)
      return;
    else if (TREE_CODE (parm) == PARM_DECL)
      {
--- 4784,4790 ----
  fixed_parameter_pack_p_1 (tree parm, struct find_parameter_pack_data *ppd)
  {
    /* A type parm can't refer to another parm.  */
!   if (TREE_CODE (parm) == TYPE_DECL || parm == error_mark_node)
      return;
    else if (TREE_CODE (parm) == PARM_DECL)
      {
*************** convert_nontype_argument (tree type, tre
*** 6399,6405 ****
  		return NULL_TREE;
  	      /* else cxx_constant_value complained but gave us
  		 a real constant, so go ahead.  */
! 	      gcc_assert (TREE_CODE (expr) == INTEGER_CST);
  	    }
  	  else
  	    return NULL_TREE;
--- 6411,6430 ----
  		return NULL_TREE;
  	      /* else cxx_constant_value complained but gave us
  		 a real constant, so go ahead.  */
! 	      if (TREE_CODE (expr) != INTEGER_CST)
! 		{
! 		  /* Some assemble time constant expressions like
! 		     (intptr_t)&&lab1 - (intptr_t)&&lab2 or
! 		     4 + (intptr_t)&&var satisfy reduced_constant_expression_p
! 		     as we can emit them into .rodata initializers of
! 		     variables, yet they can't fold into an INTEGER_CST at
! 		     compile time.  Refuse them here.  */
! 		  gcc_checking_assert (reduced_constant_expression_p (expr));
! 		  location_t loc = EXPR_LOC_OR_LOC (expr, input_location);
! 		  error_at (loc, "template argument %qE for type %qT not "
! 				 "a constant integer", expr, type);
! 		  return NULL_TREE;
! 		}
  	    }
  	  else
  	    return NULL_TREE;
*************** tsubst_copy_and_build (tree t,
*** 16068,16074 ****
  	if (targs)
  	  targs = tsubst_template_args (targs, args, complain, in_decl);
  	if (targs == error_mark_node)
! 	  return error_mark_node;
  
  	if (variable_template_p (templ))
  	  RETURN (lookup_and_finish_template_variable (templ, targs, complain));
--- 16093,16099 ----
  	if (targs)
  	  targs = tsubst_template_args (targs, args, complain, in_decl);
  	if (targs == error_mark_node)
! 	  RETURN (error_mark_node);
  
  	if (variable_template_p (templ))
  	  RETURN (lookup_and_finish_template_variable (templ, targs, complain));
*************** tsubst_copy_and_build (tree t,
*** 16133,16138 ****
--- 16158,16165 ----
        {
  	tree type = tsubst (TREE_TYPE (t), args, complain, in_decl);
  	tree op0 = RECUR (TREE_OPERAND (t, 0));
+ 	if (op0 == error_mark_node)
+ 	  RETURN (error_mark_node);
  	RETURN (build1 (CONVERT_EXPR, type, op0));
        }
  
*************** tsubst_copy_and_build (tree t,
*** 16280,16286 ****
        {
  	tree op0 = RECUR (TREE_OPERAND (t, 0));
  	tree op1 = RECUR (TREE_OPERAND (t, 1));
! 	return fold_build_pointer_plus (op0, op1);
        }
  
      case SCOPE_REF:
--- 16307,16313 ----
        {
  	tree op0 = RECUR (TREE_OPERAND (t, 0));
  	tree op1 = RECUR (TREE_OPERAND (t, 1));
! 	RETURN (fold_build_pointer_plus (op0, op1));
        }
  
      case SCOPE_REF:
*************** tsubst_copy_and_build (tree t,
*** 17086,17092 ****
  	     variadic capture proxy, we instantiate the elements
  	     when needed.  */
  	  gcc_assert (DECL_HAS_VALUE_EXPR_P (t));
! 	  return RECUR (DECL_VALUE_EXPR (t));
  	}
        /* Fall through */
  
--- 17113,17119 ----
  	     variadic capture proxy, we instantiate the elements
  	     when needed.  */
  	  gcc_assert (DECL_HAS_VALUE_EXPR_P (t));
! 	  RETURN (RECUR (DECL_VALUE_EXPR (t)));
  	}
        /* Fall through */
  
diff -Nrcpad gcc-6.4.0/gcc/cp/semantics.c gcc-6.5.0/gcc/cp/semantics.c
*** gcc-6.4.0/gcc/cp/semantics.c	Thu Jun 22 11:24:43 2017
--- gcc-6.5.0/gcc/cp/semantics.c	Mon Jun 25 17:41:34 2018
*************** finish_omp_reduction_clause (tree c, boo
*** 5563,5569 ****
        return false;
      }
    else if (processing_template_decl)
!     return false;
  
    tree id = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c);
  
--- 5563,5573 ----
        return false;
      }
    else if (processing_template_decl)
!     {
!       if (OMP_CLAUSE_REDUCTION_PLACEHOLDER (c) == error_mark_node)
! 	return true;
!       return false;
!     }
  
    tree id = OMP_CLAUSE_REDUCTION_PLACEHOLDER (c);
  
diff -Nrcpad gcc-6.4.0/gcc/cp/tree.c gcc-6.5.0/gcc/cp/tree.c
*** gcc-6.4.0/gcc/cp/tree.c	Sat Jun 24 10:53:48 2017
--- gcc-6.5.0/gcc/cp/tree.c	Mon Jun 25 17:40:52 2018
*************** tree
*** 962,967 ****
--- 962,971 ----
  cp_build_reference_type (tree to_type, bool rval)
  {
    tree lvalue_ref, t;
+ 
+   if (to_type == error_mark_node)
+     return error_mark_node;
+ 
    lvalue_ref = build_reference_type (to_type);
    if (!rval)
      return lvalue_ref;
*************** cp_tree_code_length (enum tree_code code
*** 4568,4573 ****
--- 4572,4590 ----
      }
  }
  
+ /* Wrapper around warn_deprecated_use that doesn't warn for
+    current_class_type.  */
+ 
+ void
+ cp_warn_deprecated_use (tree node)
+ {
+   if (TYPE_P (node)
+       && current_class_type
+       && TYPE_MAIN_VARIANT (node) == current_class_type)
+     return;
+   warn_deprecated_use (node, NULL_TREE);
+ }
+ 
  /* Implement -Wzero_as_null_pointer_constant.  Return true if the
     conditions for the warning hold, false otherwise.  */
  bool
diff -Nrcpad gcc-6.4.0/gcc/cp/typeck2.c gcc-6.5.0/gcc/cp/typeck2.c
*** gcc-6.4.0/gcc/cp/typeck2.c	Fri Nov 18 20:27:41 2016
--- gcc-6.5.0/gcc/cp/typeck2.c	Mon Jun 25 17:32:10 2018
*************** build_functional_cast (tree exp, tree pa
*** 1933,1939 ****
        if (complain & tf_warning
  	  && TREE_DEPRECATED (type)
  	  && DECL_ARTIFICIAL (exp))
! 	warn_deprecated_use (type, NULL_TREE);
      }
    else
      type = exp;
--- 1933,1939 ----
        if (complain & tf_warning
  	  && TREE_DEPRECATED (type)
  	  && DECL_ARTIFICIAL (exp))
! 	cp_warn_deprecated_use (type);
      }
    else
      type = exp;
diff -Nrcpad gcc-6.4.0/gcc/dce.c gcc-6.5.0/gcc/dce.c
*** gcc-6.4.0/gcc/dce.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/dce.c	Mon Jun 25 17:36:14 2018
*************** delete_unmarked_insns (void)
*** 558,566 ****
      FOR_BB_INSNS_REVERSE_SAFE (bb, insn, next)
        if (NONDEBUG_INSN_P (insn))
  	{
  	  /* Always delete no-op moves.  */
  	  if (noop_move_p (insn))
! 	    ;
  
  	  /* Otherwise rely only on the DCE algorithm.  */
  	  else if (marked_insn_p (insn))
--- 558,576 ----
      FOR_BB_INSNS_REVERSE_SAFE (bb, insn, next)
        if (NONDEBUG_INSN_P (insn))
  	{
+ 	  rtx turn_into_use = NULL_RTX;
+ 
  	  /* Always delete no-op moves.  */
  	  if (noop_move_p (insn))
! 	    {
! 	      if (RTX_FRAME_RELATED_P (insn))
! 		turn_into_use
! 		  = find_reg_note (insn, REG_CFA_RESTORE, NULL);
! 	      if (turn_into_use && REG_P (XEXP (turn_into_use, 0)))
! 		turn_into_use = XEXP (turn_into_use, 0);
! 	      else
! 		turn_into_use = NULL_RTX;
! 	    }
  
  	  /* Otherwise rely only on the DCE algorithm.  */
  	  else if (marked_insn_p (insn))
*************** delete_unmarked_insns (void)
*** 600,607 ****
  	  if (CALL_P (insn))
  	    must_clean = true;
  
! 	  /* Now delete the insn.  */
! 	  delete_insn_and_edges (insn);
  	}
  
    /* Deleted a pure or const call.  */
--- 610,628 ----
  	  if (CALL_P (insn))
  	    must_clean = true;
  
! 	  if (turn_into_use)
! 	    {
! 	      /* Don't remove frame related noop moves if they cary
! 		 REG_CFA_RESTORE note, while we don't need to emit any code,
! 		 we need it to emit the CFI restore note.  */
! 	      PATTERN (insn)
! 		= gen_rtx_USE (GET_MODE (turn_into_use), turn_into_use);
! 	      INSN_CODE (insn) = -1;
! 	      df_insn_rescan (insn);
! 	    }
! 	  else
! 	    /* Now delete the insn.  */
! 	    delete_insn_and_edges (insn);
  	}
  
    /* Deleted a pure or const call.  */
diff -Nrcpad gcc-6.4.0/gcc/doc/aot-compile.1 gcc-6.5.0/gcc/doc/aot-compile.1
*** gcc-6.4.0/gcc/doc/aot-compile.1	Tue Jul  4 09:27:49 2017
--- gcc-6.5.0/gcc/doc/aot-compile.1	Fri Oct 26 10:07:26 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "AOT-COMPILE 1"
! .TH AOT-COMPILE 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "AOT-COMPILE 1"
! .TH AOT-COMPILE 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/cpp.1 gcc-6.5.0/gcc/doc/cpp.1
*** gcc-6.4.0/gcc/doc/cpp.1	Tue Jul  4 07:37:44 2017
--- gcc-6.5.0/gcc/doc/cpp.1	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "CPP 1"
! .TH CPP 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "CPP 1"
! .TH CPP 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** get trigraph conversion without warnings
*** 306,312 ****
  .IP "\fB\-Wtraditional\fR" 4
  .IX Item "-Wtraditional"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C. \s0 Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and problematic constructs which should be avoided.
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
--- 302,308 ----
  .IP "\fB\-Wtraditional\fR" 4
  .IX Item "-Wtraditional"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C.\s0  Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and problematic constructs which should be avoided.
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
*************** line.  If the value is less than 1 or gr
*** 753,759 ****
  ignored.  The default is 8.
  .IP "\fB\-fdebug\-cpp\fR" 4
  .IX Item "-fdebug-cpp"
! This option is only useful for debugging \s-1GCC. \s0 When used with
  \&\fB\-E\fR, dumps debugging information about location maps.  Every
  token in the output is preceded by the dump of the map its location
  belongs to.  The dump of the map holding the location of a token would
--- 749,755 ----
  ignored.  The default is 8.
  .IP "\fB\-fdebug\-cpp\fR" 4
  .IX Item "-fdebug-cpp"
! This option is only useful for debugging \s-1GCC.\s0  When used with
  \&\fB\-E\fR, dumps debugging information about location maps.  Every
  token in the output is preceded by the dump of the map its location
  belongs to.  The dump of the map holding the location of a token would
*************** Note that \f(CW\*(C`\-ftrack\-macro\-exp
*** 786,792 ****
  .IP "\fB\-fexec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fexec-charset=charset"
  Set the execution character set, used for string and character
! constants.  The default is \s-1UTF\-8.  \s0\fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
  .IP "\fB\-fwide\-exec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fwide-exec-charset=charset"
--- 782,788 ----
  .IP "\fB\-fexec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fexec-charset=charset"
  Set the execution character set, used for string and character
! constants.  The default is \s-1UTF\-8.\s0  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
  .IP "\fB\-fwide\-exec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fwide-exec-charset=charset"
*************** problems with encodings that do not fit
*** 799,807 ****
  .IP "\fB\-finput\-charset=\fR\fIcharset\fR" 4
  .IX Item "-finput-charset=charset"
  Set the input character set, used for translation from the character
! set of the input file to the source character set used by \s-1GCC. \s0 If the
  locale does not specify, or \s-1GCC\s0 cannot get this information from the
! locale, the default is \s-1UTF\-8. \s0 This can be overridden by either the locale
  or this command-line option.  Currently the command-line option takes
  precedence if there's a conflict.  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
--- 795,803 ----
  .IP "\fB\-finput\-charset=\fR\fIcharset\fR" 4
  .IX Item "-finput-charset=charset"
  Set the input character set, used for translation from the character
! set of the input file to the source character set used by \s-1GCC.\s0  If the
  locale does not specify, or \s-1GCC\s0 cannot get this information from the
! locale, the default is \s-1UTF\-8.\s0  This can be overridden by either the locale
  or this command-line option.  Currently the command-line option takes
  precedence if there's a conflict.  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
diff -Nrcpad gcc-6.4.0/gcc/doc/cpp.info gcc-6.5.0/gcc/doc/cpp.info
*** gcc-6.4.0/gcc/doc/cpp.info	Tue Jul  4 09:27:45 2017
--- gcc-6.5.0/gcc/doc/cpp.info	Fri Oct 26 10:07:27 2018
***************
*** 1,5 ****
! This is doc/cpp.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/doc/cpp.texi.
  
  Copyright (C) 1987-2017 Free Software Foundation, Inc.
  
--- 1,4 ----
! This is cpp.info, produced by makeinfo version 6.4 from cpp.texi.
  
  Copyright (C) 1987-2017 Free Software Foundation, Inc.
  
*************** are (a) (see below), and the Back-Cover
*** 19,27 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * Cpp: (cpp).                  The GNU C preprocessor.
--- 18,25 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * Cpp: (cpp).                  The GNU C preprocessor.
*************** useful on its own.
*** 57,63 ****
  * Option Index::
  * Concept Index::
  
!  --- The Detailed Node Listing ---
  
  Overview
  
--- 55,61 ----
  * Option Index::
  * Concept Index::
  
!  -- The Detailed Node Listing --
  
  Overview
  
*************** Obsolete Features
*** 132,137 ****
--- 130,136 ----
  
  * Obsolete Features::
  
+ 
     Copyright (C) 1987-2017 Free Software Foundation, Inc.
  
     Permission is granted to copy, distribute and/or modify this document
*************** are (a) (see below), and the Back-Cover
*** 150,157 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
  
  
  File: cpp.info,  Node: Overview,  Next: Header Files,  Prev: Top,  Up: Top
--- 149,156 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  
  
  File: cpp.info,  Node: Overview,  Next: Header Files,  Prev: Top,  Up: Top
*************** File: cpp.info,  Node: Overview,  Next:
*** 159,169 ****
  1 Overview
  **********
  
! The C preprocessor, often known as "cpp", is a "macro processor" that
! is used automatically by the C compiler to transform your program
! before compilation.  It is called a macro processor because it allows
! you to define "macros", which are brief abbreviations for longer
! constructs.
  
     The C preprocessor is intended to be used only with C, C++, and
  Objective-C source code.  In the past, it has been abused as a general
--- 158,167 ----
  1 Overview
  **********
  
! The C preprocessor, often known as "cpp", is a "macro processor" that is
! used automatically by the C compiler to transform your program before
! compilation.  It is called a macro processor because it allows you to
! define "macros", which are brief abbreviations for longer constructs.
  
     The C preprocessor is intended to be used only with C, C++, and
  Objective-C source code.  In the past, it has been abused as a general
*************** will be removed, and the Makefile will n
*** 176,182 ****
  
     Having said that, you can often get away with using cpp on things
  which are not C.  Other Algol-ish programming languages are often safe
! (Pascal, Ada, etc.) So is assembly, with caution.  `-traditional-cpp'
  mode preserves more white space, and is otherwise more permissive.  Many
  of the problems can be avoided by writing C or C++ style comments
  instead of native language comments, and keeping macros simple.
--- 174,180 ----
  
     Having said that, you can often get away with using cpp on things
  which are not C.  Other Algol-ish programming languages are often safe
! (Pascal, Ada, etc.)  So is assembly, with caution.  '-traditional-cpp'
  mode preserves more white space, and is otherwise more permissive.  Many
  of the problems can be avoided by writing C or C++ style comments
  instead of native language comments, and keeping macros simple.
*************** instead of native language comments, and
*** 184,191 ****
     Wherever possible, you should use a preprocessor geared to the
  language you are writing in.  Modern versions of the GNU assembler have
  macro facilities.  Most high level programming languages have their own
! conditional compilation and inclusion mechanism.  If all else fails,
! try a true general text processor, such as GNU M4.
  
     C preprocessors vary in some details.  This manual discusses the GNU
  C preprocessor, which provides a small superset of the features of ISO
--- 182,189 ----
     Wherever possible, you should use a preprocessor geared to the
  language you are writing in.  Modern versions of the GNU assembler have
  macro facilities.  Most high level programming languages have their own
! conditional compilation and inclusion mechanism.  If all else fails, try
! a true general text processor, such as GNU M4.
  
     C preprocessors vary in some details.  This manual discusses the GNU
  C preprocessor, which provides a small superset of the features of ISO
*************** Standard C.  In its default mode, the GN
*** 193,201 ****
  few things required by the standard.  These are features which are
  rarely, if ever, used, and may cause surprising changes to the meaning
  of a program which does not expect them.  To get strict ISO Standard C,
! you should use the `-std=c90', `-std=c99' or `-std=c11' options,
  depending on which version of the standard you want.  To get all the
! mandatory diagnostics, you must also use `-pedantic'.  *Note
  Invocation::.
  
     This manual describes the behavior of the ISO preprocessor.  To
--- 191,199 ----
  few things required by the standard.  These are features which are
  rarely, if ever, used, and may cause surprising changes to the meaning
  of a program which does not expect them.  To get strict ISO Standard C,
! you should use the '-std=c90', '-std=c99' or '-std=c11' options,
  depending on which version of the standard you want.  To get all the
! mandatory diagnostics, you must also use '-pedantic'.  *Note
  Invocation::.
  
     This manual describes the behavior of the ISO preprocessor.  To
*************** does not conflict with traditional seman
*** 204,210 ****
  preprocessor should behave the same way.  The various differences that
  do exist are detailed in the section *note Traditional Mode::.
  
!    For clarity, unless noted otherwise, references to `CPP' in this
  manual refer to GNU CPP.
  
  * Menu:
--- 202,208 ----
  preprocessor should behave the same way.  The various differences that
  do exist are detailed in the section *note Traditional Mode::.
  
!    For clarity, unless noted otherwise, references to 'CPP' in this
  manual refer to GNU CPP.
  
  * Menu:
*************** there are really at least four.
*** 226,267 ****
  
     The files input to CPP might be in any character set at all.  CPP's
  very first action, before it even looks for line boundaries, is to
! convert the file into the character set it uses for internal
! processing.  That set is what the C standard calls the "source"
! character set.  It must be isomorphic with ISO 10646, also known as
! Unicode.  CPP uses the UTF-8 encoding of Unicode.
  
     The character sets of the input files are specified using the
! `-finput-charset=' option.
  
     All preprocessing work (the subject of the rest of this manual) is
  carried out in the source character set.  If you request textual output
! from the preprocessor with the `-E' option, it will be in UTF-8.
  
     After preprocessing is complete, string and character constants are
! converted again, into the "execution" character set.  This character
! set is under control of the user; the default is UTF-8, matching the
! source character set.  Wide string and character constants have their
! own character set, which is not called out specifically in the
! standard.  Again, it is under control of the user.  The default is
! UTF-16 or UTF-32, whichever fits in the target's `wchar_t' type, in the
! target machine's byte order.(1)  Octal and hexadecimal escape sequences
! do not undergo conversion; '\x12' has the value 0x12 regardless of the
  currently selected execution character set.  All other escapes are
  replaced by the character in the source character set that they
  represent, then converted to the execution character set, just like
  unescaped characters.
  
     In identifiers, characters outside the ASCII range can only be
! specified with the `\u' and `\U' escapes, not used directly.  If strict
! ISO C90 conformance is specified with an option such as `-std=c90', or
! `-fno-extended-identifiers' is used, then those escapes are not
  permitted in identifiers.
  
     ---------- Footnotes ----------
  
     (1) UTF-16 does not meet the requirements of the C standard for a
! wide character set, but the choice of 16-bit `wchar_t' is enshrined in
  some system ABIs so we cannot fix this.
  
  
--- 224,265 ----
  
     The files input to CPP might be in any character set at all.  CPP's
  very first action, before it even looks for line boundaries, is to
! convert the file into the character set it uses for internal processing.
! That set is what the C standard calls the "source" character set.  It
! must be isomorphic with ISO 10646, also known as Unicode.  CPP uses the
! UTF-8 encoding of Unicode.
  
     The character sets of the input files are specified using the
! '-finput-charset=' option.
  
     All preprocessing work (the subject of the rest of this manual) is
  carried out in the source character set.  If you request textual output
! from the preprocessor with the '-E' option, it will be in UTF-8.
  
     After preprocessing is complete, string and character constants are
! converted again, into the "execution" character set.  This character set
! is under control of the user; the default is UTF-8, matching the source
! character set.  Wide string and character constants have their own
! character set, which is not called out specifically in the standard.
! Again, it is under control of the user.  The default is UTF-16 or
! UTF-32, whichever fits in the target's 'wchar_t' type, in the target
! machine's byte order.(1)  Octal and hexadecimal escape sequences do not
! undergo conversion; '\x12' has the value 0x12 regardless of the
  currently selected execution character set.  All other escapes are
  replaced by the character in the source character set that they
  represent, then converted to the execution character set, just like
  unescaped characters.
  
     In identifiers, characters outside the ASCII range can only be
! specified with the '\u' and '\U' escapes, not used directly.  If strict
! ISO C90 conformance is specified with an option such as '-std=c90', or
! '-fno-extended-identifiers' is used, then those escapes are not
  permitted in identifiers.
  
     ---------- Footnotes ----------
  
     (1) UTF-16 does not meet the requirements of the C standard for a
! wide character set, but the choice of 16-bit 'wchar_t' is enshrined in
  some system ABIs so we cannot fix this.
  
  
*************** standard.
*** 281,315 ****
    1. The input file is read into memory and broken into lines.
  
       Different systems use different conventions to indicate the end of
!      a line.  GCC accepts the ASCII control sequences `LF', `CR LF' and
!      `CR' as end-of-line markers.  These are the canonical sequences
       used by Unix, DOS and VMS, and the classic Mac OS (before OSX)
!      respectively.  You may therefore safely copy source code written
!      on any of those systems to a different one and use it without
       conversion.  (GCC may lose track of the current line number if a
       file doesn't consistently use one convention, as sometimes happens
       when it is edited on computers with different conventions that
       share a network file system.)
  
!      If the last line of any input file lacks an end-of-line marker,
!      the end of the file is considered to implicitly supply one.  The C
       standard says that this condition provokes undefined behavior, so
       GCC will emit a warning message.
  
    2. If trigraphs are enabled, they are replaced by their corresponding
       single characters.  By default GCC ignores trigraphs, but if you
!      request a strictly conforming mode with the `-std' option, or you
!      specify the `-trigraphs' option, then it converts them.
  
!      These are nine three-character sequences, all starting with `??',
       that are defined by ISO C to stand for single characters.  They
!      permit obsolete systems that lack some of C's punctuation to use
!      C.  For example, `??/' stands for `\', so '??/n' is a character
       constant for a newline.
  
       Trigraphs are not popular and many compilers implement them
       incorrectly.  Portable code should not rely on trigraphs being
!      either converted or ignored.  With `-Wtrigraphs' GCC will warn you
       when a trigraph may change the meaning of your program if it were
       converted.  *Note Wtrigraphs::.
  
--- 279,313 ----
    1. The input file is read into memory and broken into lines.
  
       Different systems use different conventions to indicate the end of
!      a line.  GCC accepts the ASCII control sequences 'LF', 'CR LF' and
!      'CR' as end-of-line markers.  These are the canonical sequences
       used by Unix, DOS and VMS, and the classic Mac OS (before OSX)
!      respectively.  You may therefore safely copy source code written on
!      any of those systems to a different one and use it without
       conversion.  (GCC may lose track of the current line number if a
       file doesn't consistently use one convention, as sometimes happens
       when it is edited on computers with different conventions that
       share a network file system.)
  
!      If the last line of any input file lacks an end-of-line marker, the
!      end of the file is considered to implicitly supply one.  The C
       standard says that this condition provokes undefined behavior, so
       GCC will emit a warning message.
  
    2. If trigraphs are enabled, they are replaced by their corresponding
       single characters.  By default GCC ignores trigraphs, but if you
!      request a strictly conforming mode with the '-std' option, or you
!      specify the '-trigraphs' option, then it converts them.
  
!      These are nine three-character sequences, all starting with '??',
       that are defined by ISO C to stand for single characters.  They
!      permit obsolete systems that lack some of C's punctuation to use C.
!      For example, '??/' stands for '\', so '??/n' is a character
       constant for a newline.
  
       Trigraphs are not popular and many compilers implement them
       incorrectly.  Portable code should not rely on trigraphs being
!      either converted or ignored.  With '-Wtrigraphs' GCC will warn you
       when a trigraph may change the meaning of your program if it were
       converted.  *Note Wtrigraphs::.
  
*************** standard.
*** 317,324 ****
       from being confused with a trigraph by inserting a backslash
       between the question marks, or by separating the string literal at
       the trigraph and making use of string literal concatenation.
!      "(??\?)"  is the string `(???)', not `(?]'.  Traditional C
!      compilers do not recognize these idioms.
  
       The nine trigraphs and their replacements are
  
--- 315,322 ----
       from being confused with a trigraph by inserting a backslash
       between the question marks, or by separating the string literal at
       the trigraph and making use of string literal concatenation.
!      "(??\?)" is the string '(???)', not '(?]'.  Traditional C compilers
!      do not recognize these idioms.
  
       The nine trigraphs and their replacements are
  
*************** standard.
*** 327,333 ****
  
    3. Continued lines are merged into one long line.
  
!      A continued line is a line which ends with a backslash, `\'.  The
       backslash is removed and the following line is joined with the
       current one.  No space is inserted, so you may split a line
       anywhere, even in the middle of a word.  (It is generally more
--- 325,331 ----
  
    3. Continued lines are merged into one long line.
  
!      A continued line is a line which ends with a backslash, '\'.  The
       backslash is removed and the following line is joined with the
       current one.  No space is inserted, so you may split a line
       anywhere, even in the middle of a word.  (It is generally more
*************** standard.
*** 338,354 ****
  
       If there is white space between a backslash and the end of a line,
       that is still a continued line.  However, as this is usually the
!      result of an editing mistake, and many compilers will not accept
!      it as a continued line, GCC will warn you about it.
  
    4. All comments are replaced with single spaces.
  
!      There are two kinds of comments.  "Block comments" begin with `/*'
!      and continue until the next `*/'.  Block comments do not nest:
  
            /* this is /* one comment */ text outside comment
  
!      "Line comments" begin with `//' and continue to the end of the
       current line.  Line comments do not nest either, but it does not
       matter, because they would end in the same place anyway.
  
--- 336,352 ----
  
       If there is white space between a backslash and the end of a line,
       that is still a continued line.  However, as this is usually the
!      result of an editing mistake, and many compilers will not accept it
!      as a continued line, GCC will warn you about it.
  
    4. All comments are replaced with single spaces.
  
!      There are two kinds of comments.  "Block comments" begin with '/*'
!      and continue until the next '*/'.  Block comments do not nest:
  
            /* this is /* one comment */ text outside comment
  
!      "Line comments" begin with '//' and continue to the end of the
       current line.  Line comments do not nest either, but it does not
       matter, because they would end in the same place anyway.
  
*************** comment.
*** 371,377 ****
           oops! this isn't a comment anymore */
  
     Comments are not recognized within string literals.  "/* blah */" is
! the string constant `/* blah */', not an empty string.
  
     Line comments are not in the 1989 edition of the C standard, but they
  are recognized by GCC as an extension.  In C++ and in the 1999 edition
--- 369,375 ----
           oops! this isn't a comment anymore */
  
     Comments are not recognized within string literals.  "/* blah */" is
! the string constant '/* blah */', not an empty string.
  
     Line comments are not in the 1989 edition of the C standard, but they
  are recognized by GCC as an extension.  In C++ and in the 1999 edition
*************** of the C standard, they are an official
*** 380,387 ****
     Since these transformations happen before all other processing, you
  can split a line mechanically with backslash-newline anywhere.  You can
  comment out the end of a line.  You can continue a line comment onto the
! next line with backslash-newline.  You can even split `/*', `*/', and
! `//' onto multiple lines with backslash-newline.  For example:
  
       /\
       *
--- 378,385 ----
     Since these transformations happen before all other processing, you
  can split a line mechanically with backslash-newline anywhere.  You can
  comment out the end of a line.  You can continue a line comment onto the
! next line with backslash-newline.  You can even split '/*', '*/', and
! '//' onto multiple lines with backslash-newline.  For example:
  
       /\
       *
*************** next line with backslash-newline.  You c
*** 391,397 ****
       O 10\
       20
  
! is equivalent to `#define FOO 1020'.  All these tricks are extremely
  confusing and should not be used in code intended to be readable.
  
     There is no way to prevent a backslash at the end of a line from
--- 389,395 ----
       O 10\
       20
  
! is equivalent to '#define FOO 1020'.  All these tricks are extremely
  confusing and should not be used in code intended to be readable.
  
     There is no way to prevent a backslash at the end of a line from
*************** token of any kind.  Tokens do not have t
*** 412,426 ****
  but it is often necessary to avoid ambiguities.
  
     When faced with a sequence of characters that has more than one
! possible tokenization, the preprocessor is greedy.  It always makes
! each token, starting from the left, as big as possible before moving on
! to the next token.  For instance, `a+++++b' is interpreted as
! `a ++ ++ + b', not as `a ++ + ++ b', even though the latter
! tokenization could be part of a valid C program and the former could
! not.
  
     Once the input file is broken into tokens, the token boundaries never
! change, except when the `##' preprocessing operator is used to paste
  tokens together.  *Note Concatenation::.  For example,
  
       #define foo() bar
--- 410,423 ----
  but it is often necessary to avoid ambiguities.
  
     When faced with a sequence of characters that has more than one
! possible tokenization, the preprocessor is greedy.  It always makes each
! token, starting from the left, as big as possible before moving on to
! the next token.  For instance, 'a+++++b' is interpreted as
! 'a ++ ++ + b', not as 'a ++ + ++ b', even though the latter tokenization
! could be part of a valid C program and the former could not.
  
     Once the input file is broken into tokens, the token boundaries never
! change, except when the '##' preprocessing operator is used to paste
  tokens together.  *Note Concatenation::.  For example,
  
       #define foo() bar
*************** preprocessing token becomes one compiler
*** 434,445 ****
  
     Preprocessing tokens fall into five broad classes: identifiers,
  preprocessing numbers, string literals, punctuators, and other.  An
! "identifier" is the same as an identifier in C: any sequence of
! letters, digits, or underscores, which begins with a letter or
! underscore.  Keywords of C have no significance to the preprocessor;
! they are ordinary identifiers.  You can define a macro whose name is a
! keyword, for instance.  The only identifier which can be considered a
! preprocessing keyword is `defined'.  *Note Defined::.
  
     This is mostly true of other languages which use the C preprocessor.
  However, a few of the keywords of C++ are significant even in the
--- 431,442 ----
  
     Preprocessing tokens fall into five broad classes: identifiers,
  preprocessing numbers, string literals, punctuators, and other.  An
! "identifier" is the same as an identifier in C: any sequence of letters,
! digits, or underscores, which begins with a letter or underscore.
! Keywords of C have no significance to the preprocessor; they are
! ordinary identifiers.  You can define a macro whose name is a keyword,
! for instance.  The only identifier which can be considered a
! preprocessing keyword is 'defined'.  *Note Defined::.
  
     This is mostly true of other languages which use the C preprocessor.
  However, a few of the keywords of C++ are significant even in the
*************** preprocessor.  *Note C++ Named Operators
*** 449,461 ****
  part of the "basic source character set", at the implementation's
  discretion (such as accented Latin letters, Greek letters, or Chinese
  ideograms).  This may be done with an extended character set, or the
! `\u' and `\U' escape sequences.  GCC only accepts such characters in
! the `\u' and `\U' forms.
  
!    As an extension, GCC treats `$' as a letter.  This is for
! compatibility with some systems, such as VMS, where `$' is commonly
! used in system-defined function and object names.  `$' is not a letter
! in strictly conforming mode, or if you specify the `-$' option.  *Note
  Invocation::.
  
     A "preprocessing number" has a rather bizarre definition.  The
--- 446,458 ----
  part of the "basic source character set", at the implementation's
  discretion (such as accented Latin letters, Greek letters, or Chinese
  ideograms).  This may be done with an extended character set, or the
! '\u' and '\U' escape sequences.  GCC only accepts such characters in the
! '\u' and '\U' forms.
  
!    As an extension, GCC treats '$' as a letter.  This is for
! compatibility with some systems, such as VMS, where '$' is commonly used
! in system-defined function and object names.  '$' is not a letter in
! strictly conforming mode, or if you specify the '-$' option.  *Note
  Invocation::.
  
     A "preprocessing number" has a rather bizarre definition.  The
*************** one expects of C, but also a number of o
*** 464,472 ****
  initially recognize as a number.  Formally, preprocessing numbers begin
  with an optional period, a required decimal digit, and then continue
  with any sequence of letters, digits, underscores, periods, and
! exponents.  Exponents are the two-character sequences `e+', `e-', `E+',
! `E-', `p+', `p-', `P+', and `P-'.  (The exponents that begin with `p'
! or `P' are new to C99.  They are used for hexadecimal floating-point
  constants.)
  
     The purpose of this unusual definition is to isolate the preprocessor
--- 461,469 ----
  initially recognize as a number.  Formally, preprocessing numbers begin
  with an optional period, a required decimal digit, and then continue
  with any sequence of letters, digits, underscores, periods, and
! exponents.  Exponents are the two-character sequences 'e+', 'e-', 'E+',
! 'E-', 'p+', 'p-', 'P+', and 'P-'.  (The exponents that begin with 'p' or
! 'P' are new to C99.  They are used for hexadecimal floating-point
  constants.)
  
     The purpose of this unusual definition is to isolate the preprocessor
*************** from the full complexity of numeric cons
*** 474,495 ****
  distinguish between lexically valid and invalid floating-point numbers,
  which is complicated.  The definition also permits you to split an
  identifier at any position and get exactly two tokens, which can then be
! pasted back together with the `##' operator.
  
     It's possible for preprocessing numbers to cause programs to be
! misinterpreted.  For example, `0xE+12' is a preprocessing number which
  does not translate to any valid numeric constant, therefore a syntax
! error.  It does not mean `0xE + 12', which is what you might have
  intended.
  
     "String literals" are string constants, character constants, and
! header file names (the argument of `#include').(1)  String constants
! and character constants are straightforward: "..." or '...'.  In either
! case embedded quotes should be escaped with a backslash: '\'' is the
! character constant for `''.  There is no limit on the length of a
  character constant, but the value of a character constant that contains
! more than one character is implementation-defined.  *Note
! Implementation Details::.
  
     Header file names either look like string constants, "...", or are
  written with angle brackets instead, <...>.  In either case, backslash
--- 471,492 ----
  distinguish between lexically valid and invalid floating-point numbers,
  which is complicated.  The definition also permits you to split an
  identifier at any position and get exactly two tokens, which can then be
! pasted back together with the '##' operator.
  
     It's possible for preprocessing numbers to cause programs to be
! misinterpreted.  For example, '0xE+12' is a preprocessing number which
  does not translate to any valid numeric constant, therefore a syntax
! error.  It does not mean '0xE + 12', which is what you might have
  intended.
  
     "String literals" are string constants, character constants, and
! header file names (the argument of '#include').(1)  String constants and
! character constants are straightforward: "..." or '...'.  In either case
! embedded quotes should be escaped with a backslash: '\'' is the
! character constant for '''.  There is no limit on the length of a
  character constant, but the value of a character constant that contains
! more than one character is implementation-defined.  *Note Implementation
! Details::.
  
     Header file names either look like string constants, "...", or are
  written with angle brackets instead, <...>.  In either case, backslash
*************** Operation::.
*** 500,518 ****
  
     No string literal may extend past the end of a line.  Older versions
  of GCC accepted multi-line string constants.  You may use continued
! lines instead, or string constant concatenation.  *Note Differences
! from previous versions::.
  
     "Punctuators" are all the usual bits of punctuation which are
  meaningful to C and C++.  All but three of the punctuation characters in
! ASCII are C punctuators.  The exceptions are `@', `$', and ``'.  In
  addition, all the two- and three-character operators are punctuators.
! There are also six "digraphs", which the C++ standard calls
! "alternative tokens", which are merely alternate ways to spell other
! punctuators.  This is a second attempt to work around missing
! punctuation in obsolete systems.  It has no negative side effects,
! unlike trigraphs, but does not cover as much ground.  The digraphs and
! their corresponding normal punctuators are:
  
       Digraph:        <%  %>  <:  :>  %:  %:%:
       Punctuator:      {   }   [   ]   #    ##
--- 497,515 ----
  
     No string literal may extend past the end of a line.  Older versions
  of GCC accepted multi-line string constants.  You may use continued
! lines instead, or string constant concatenation.  *Note Differences from
! previous versions::.
  
     "Punctuators" are all the usual bits of punctuation which are
  meaningful to C and C++.  All but three of the punctuation characters in
! ASCII are C punctuators.  The exceptions are '@', '$', and '`'.  In
  addition, all the two- and three-character operators are punctuators.
! There are also six "digraphs", which the C++ standard calls "alternative
! tokens", which are merely alternate ways to spell other punctuators.
! This is a second attempt to work around missing punctuation in obsolete
! systems.  It has no negative side effects, unlike trigraphs, but does
! not cover as much ground.  The digraphs and their corresponding normal
! punctuators are:
  
       Digraph:        <%  %>  <:  :>  %:  %:%:
       Punctuator:      {   }   [   ]   #    ##
*************** their corresponding normal punctuators a
*** 520,531 ****
     Any other single character is considered "other".  It is passed on to
  the preprocessor's output unmolested.  The C compiler will almost
  certainly reject source code containing "other" tokens.  In ASCII, the
! only other characters are `@', `$', ``', and control characters other
! than NUL (all bits zero).  (Note that `$' is normally considered a
! letter.)  All characters with the high bit set (numeric range
! 0x7F-0xFF) are also "other" in the present implementation.  This will
! change when proper support for international character sets is added to
! GCC.
  
     NUL is a special case because of the high probability that its
  appearance is accidental, and because it may be invisible to the user
--- 517,527 ----
     Any other single character is considered "other".  It is passed on to
  the preprocessor's output unmolested.  The C compiler will almost
  certainly reject source code containing "other" tokens.  In ASCII, the
! only other characters are '@', '$', '`', and control characters other
! than NUL (all bits zero).  (Note that '$' is normally considered a
! letter.)  All characters with the high bit set (numeric range 0x7F-0xFF)
! are also "other" in the present implementation.  This will change when
! proper support for international character sets is added to GCC.
  
     NUL is a special case because of the high probability that its
  appearance is accidental, and because it may be invisible to the user
*************** have the same meaning.
*** 537,545 ****
       #define X^@1
       #define X 1
  
! (where `^@' is ASCII NUL).  Within string or character constants, NULs
! are preserved.  In the latter two cases the preprocessor emits a
! warning message.
  
     ---------- Footnotes ----------
  
--- 533,541 ----
       #define X^@1
       #define X 1
  
! (where '^@' is ASCII NUL).  Within string or character constants, NULs
! are preserved.  In the latter two cases the preprocessor emits a warning
! message.
  
     ---------- Footnotes ----------
  
*************** and "macros" to be expanded.  Its primar
*** 573,580 ****
       program according to various conditions.
  
     * Line control.  If you use a program to combine or rearrange source
!      files into an intermediate file which is then compiled, you can
!      use line control to inform the compiler where each source line
       originally came from.
  
     * Diagnostics.  You can detect problems at compile time and issue
--- 569,576 ----
       program according to various conditions.
  
     * Line control.  If you use a program to combine or rearrange source
!      files into an intermediate file which is then compiled, you can use
!      line control to inform the compiler where each source line
       originally came from.
  
     * Diagnostics.  You can detect problems at compile time and issue
*************** and "macros" to be expanded.  Its primar
*** 583,598 ****
     There are a few more, less useful, features.
  
     Except for expansion of predefined macros, all these operations are
! triggered with "preprocessing directives".  Preprocessing directives
! are lines in your program that start with `#'.  Whitespace is allowed
! before and after the `#'.  The `#' is followed by an identifier, the
! "directive name".  It specifies the operation to perform.  Directives
! are commonly referred to as `#NAME' where NAME is the directive name.
! For example, `#define' is the directive that defines a macro.
  
!    The `#' which begins a directive cannot come from a macro expansion.
! Also, the directive name is not macro expanded.  Thus, if `foo' is
! defined as a macro expanding to `define', that does not make `#foo' a
  valid preprocessing directive.
  
     The set of valid directive names is fixed.  Programs cannot define
--- 579,594 ----
     There are a few more, less useful, features.
  
     Except for expansion of predefined macros, all these operations are
! triggered with "preprocessing directives".  Preprocessing directives are
! lines in your program that start with '#'.  Whitespace is allowed before
! and after the '#'.  The '#' is followed by an identifier, the "directive
! name".  It specifies the operation to perform.  Directives are commonly
! referred to as '#NAME' where NAME is the directive name.  For example,
! '#define' is the directive that defines a macro.
  
!    The '#' which begins a directive cannot come from a macro expansion.
! Also, the directive name is not macro expanded.  Thus, if 'foo' is
! defined as a macro expanding to 'define', that does not make '#foo' a
  valid preprocessing directive.
  
     The set of valid directive names is fixed.  Programs cannot define
*************** new preprocessing directives.
*** 600,607 ****
  
     Some directives require arguments; these make up the rest of the
  directive line and must be separated from the directive name by
! whitespace.  For example, `#define' must be followed by a macro name
! and the intended expansion of the macro.
  
     A preprocessing directive cannot cover more than one line.  The line
  may, however, be continued with backslash-newline, or by a block comment
--- 596,603 ----
  
     Some directives require arguments; these make up the rest of the
  directive line and must be separated from the directive name by
! whitespace.  For example, '#define' must be followed by a macro name and
! the intended expansion of the macro.
  
     A preprocessing directive cannot cover more than one line.  The line
  may, however, be continued with backslash-newline, or by a block comment
*************** File: cpp.info,  Node: Header Files,  Ne
*** 618,624 ****
  A header file is a file containing C declarations and macro definitions
  (*note Macros::) to be shared between several source files.  You request
  the use of a header file in your program by "including" it, with the C
! preprocessing directive `#include'.
  
     Header files serve two purposes.
  
--- 614,620 ----
  A header file is a file containing C declarations and macro definitions
  (*note Macros::) to be shared between several source files.  You request
  the use of a header file in your program by "including" it, with the C
! preprocessing directive '#include'.
  
     Header files serve two purposes.
  
*************** preprocessing directive `#include'.
*** 629,636 ****
  
     * Your own header files contain declarations for interfaces between
       the source files of your program.  Each time you have a group of
!      related declarations and macro definitions all or most of which
!      are needed in several different source files, it is a good idea to
       create a header file for them.
  
     Including a header file produces the same results as copying the
--- 625,632 ----
  
     * Your own header files contain declarations for interfaces between
       the source files of your program.  Each time you have a group of
!      related declarations and macro definitions all or most of which are
!      needed in several different source files, it is a good idea to
       create a header file for them.
  
     Including a header file produces the same results as copying the
*************** as the risk that a failure to find one c
*** 644,650 ****
  inconsistencies within a program.
  
     In C, the usual convention is to give header files names that end
! with `.h'.  It is most portable to use only letters, digits, dashes, and
  underscores in header file names, and at most one dot.
  
  * Menu:
--- 640,646 ----
  inconsistencies within a program.
  
     In C, the usual convention is to give header files names that end
! with '.h'.  It is most portable to use only letters, digits, dashes, and
  underscores in header file names, and at most one dot.
  
  * Menu:
*************** File: cpp.info,  Node: Include Syntax,
*** 665,697 ****
  ==================
  
  Both user and system header files are included using the preprocessing
! directive `#include'.  It has two variants:
  
! `#include <FILE>'
       This variant is used for system header files.  It searches for a
       file named FILE in a standard list of system directories.  You can
!      prepend directories to this list with the `-I' option (*note
       Invocation::).
  
! `#include "FILE"'
       This variant is used for header files of your own program.  It
       searches for a file named FILE first in the directory containing
       the current file, then in the quote directories and then the same
!      directories used for `<FILE>'.  You can prepend directories to the
!      list of quote directories with the `-iquote' option.
  
!    The argument of `#include', whether delimited with quote marks or
  angle brackets, behaves like a string constant in that comments are not
! recognized, and macro names are not expanded.  Thus, `#include <x/*y>'
! specifies inclusion of a system header file named `x/*y'.
  
     However, if backslashes occur within FILE, they are considered
  ordinary text characters, not escape characters.  None of the character
  escape sequences appropriate to string constants in C are processed.
! Thus, `#include "x\n\\y"' specifies a filename containing three
! backslashes.  (Some systems interpret `\' as a pathname separator.  All
! of these also interpret `/' the same way.  It is most portable to use
! only `/'.)
  
     It is an error if there is anything (other than comments) on the line
  after the file name.
--- 661,693 ----
  ==================
  
  Both user and system header files are included using the preprocessing
! directive '#include'.  It has two variants:
  
! '#include <FILE>'
       This variant is used for system header files.  It searches for a
       file named FILE in a standard list of system directories.  You can
!      prepend directories to this list with the '-I' option (*note
       Invocation::).
  
! '#include "FILE"'
       This variant is used for header files of your own program.  It
       searches for a file named FILE first in the directory containing
       the current file, then in the quote directories and then the same
!      directories used for '<FILE>'.  You can prepend directories to the
!      list of quote directories with the '-iquote' option.
  
!    The argument of '#include', whether delimited with quote marks or
  angle brackets, behaves like a string constant in that comments are not
! recognized, and macro names are not expanded.  Thus, '#include <x/*y>'
! specifies inclusion of a system header file named 'x/*y'.
  
     However, if backslashes occur within FILE, they are considered
  ordinary text characters, not escape characters.  None of the character
  escape sequences appropriate to string constants in C are processed.
! Thus, '#include "x\n\\y"' specifies a filename containing three
! backslashes.  (Some systems interpret '\' as a pathname separator.  All
! of these also interpret '/' the same way.  It is most portable to use
! only '/'.)
  
     It is an error if there is anything (other than comments) on the line
  after the file name.
*************** File: cpp.info,  Node: Include Operation
*** 702,718 ****
  2.2 Include Operation
  =====================
  
! The `#include' directive works by directing the C preprocessor to scan
  the specified file as input before continuing with the rest of the
  current file.  The output from the preprocessor contains the output
  already generated, followed by the output resulting from the included
  file, followed by the output that comes from the text after the
! `#include' directive.  For example, if you have a header file
! `header.h' as follows,
  
       char *test (void);
  
! and a main program called `program.c' that uses the header file, like
  this,
  
       int x;
--- 698,714 ----
  2.2 Include Operation
  =====================
  
! The '#include' directive works by directing the C preprocessor to scan
  the specified file as input before continuing with the rest of the
  current file.  The output from the preprocessor contains the output
  already generated, followed by the output resulting from the included
  file, followed by the output that comes from the text after the
! '#include' directive.  For example, if you have a header file 'header.h'
! as follows,
  
       char *test (void);
  
! and a main program called 'program.c' that uses the header file, like
  this,
  
       int x;
*************** this,
*** 724,730 ****
         puts (test ());
       }
  
! the compiler will see the same token stream as it would if `program.c'
  read
  
       int x;
--- 720,726 ----
         puts (test ());
       }
  
! the compiler will see the same token stream as it would if 'program.c'
  read
  
       int x;
*************** the file.
*** 750,756 ****
  syntactic units--function declarations or definitions, type
  declarations, etc.
  
!    The line following the `#include' directive is always treated as a
  separate line by the C preprocessor, even if the included file lacks a
  final newline.
  
--- 746,752 ----
  syntactic units--function declarations or definitions, type
  declarations, etc.
  
!    The line following the '#include' directive is always treated as a
  separate line by the C preprocessor, even if the included file lacks a
  final newline.
  
*************** File: cpp.info,  Node: Search Path,  Nex
*** 762,768 ****
  
  GCC looks in several different places for headers.  On a normal Unix
  system, if you do not instruct it otherwise, it will look for headers
! requested with `#include <FILE>' in:
  
       /usr/local/include
       LIBDIR/gcc/TARGET/VERSION/include
--- 758,764 ----
  
  GCC looks in several different places for headers.  On a normal Unix
  system, if you do not instruct it otherwise, it will look for headers
! requested with '#include <FILE>' in:
  
       /usr/local/include
       LIBDIR/gcc/TARGET/VERSION/include
*************** requested with `#include <FILE>' in:
*** 770,783 ****
       /usr/include
  
     For C++ programs, it will also look in
! `LIBDIR/../include/c++/VERSION', first.  In the above, TARGET is the
  canonical name of the system GCC was configured to compile code for;
  often but not always the same as the canonical name of the system it
  runs on.  VERSION is the version of GCC in use.
  
!    You can add to this list with the `-IDIR' command-line option.  All
! the directories named by `-I' are searched, in left-to-right order,
! _before_ the default directories.  The only exception is when `dir' is
  already searched by default.  In this case, the option is ignored and
  the search order for system directories remains unchanged.
  
--- 766,779 ----
       /usr/include
  
     For C++ programs, it will also look in
! 'LIBDIR/../include/c++/VERSION', first.  In the above, TARGET is the
  canonical name of the system GCC was configured to compile code for;
  often but not always the same as the canonical name of the system it
  runs on.  VERSION is the version of GCC in use.
  
!    You can add to this list with the '-IDIR' command-line option.  All
! the directories named by '-I' are searched, in left-to-right order,
! _before_ the default directories.  The only exception is when 'dir' is
  already searched by default.  In this case, the option is ignored and
  the search order for system directories remains unchanged.
  
*************** Thus, it is possible for a directory to
*** 787,824 ****
  chain if it was specified in both the quote and bracket chains.
  
     You can prevent GCC from searching any of the default directories
! with the `-nostdinc' option.  This is useful when you are compiling an
  operating system kernel or some other program that does not use the
! standard C library facilities, or the standard C library itself.  `-I'
! options are not ignored as described above when `-nostdinc' is in
  effect.
  
!    GCC looks for headers requested with `#include "FILE"' first in the
  directory containing the current file, then in the directories as
! specified by `-iquote' options, then in the same places it would have
  looked for a header requested with angle brackets.  For example, if
! `/usr/include/sys/stat.h' contains `#include "types.h"', GCC looks for
! `types.h' first in `/usr/include/sys', then in its usual search path.
  
!    `#line' (*note Line Control::) does not change GCC's idea of the
  directory containing the current file.
  
!    You may put `-I-' at any point in your list of `-I' options.  This
! has two effects.  First, directories appearing before the `-I-' in the
  list are searched only for headers requested with quote marks.
! Directories after `-I-' are searched for all headers.  Second, the
  directory containing the current file is not searched for anything,
! unless it happens to be one of the directories named by an `-I' switch.
! `-I-' is deprecated, `-iquote' should be used instead.
  
!    `-I. -I-' is not the same as no `-I' options at all, and does not
! cause the same behavior for `<>' includes that `""' includes get with
! no special options.  `-I.' searches the compiler's current working
  directory for header files.  That may or may not be the same as the
  directory containing the current file.
  
!    If you need to look for headers in a directory named `-', write
! `-I./-'.
  
     There are several more ways to adjust the header search path.  They
  are generally less useful.  *Note Invocation::.
--- 783,820 ----
  chain if it was specified in both the quote and bracket chains.
  
     You can prevent GCC from searching any of the default directories
! with the '-nostdinc' option.  This is useful when you are compiling an
  operating system kernel or some other program that does not use the
! standard C library facilities, or the standard C library itself.  '-I'
! options are not ignored as described above when '-nostdinc' is in
  effect.
  
!    GCC looks for headers requested with '#include "FILE"' first in the
  directory containing the current file, then in the directories as
! specified by '-iquote' options, then in the same places it would have
  looked for a header requested with angle brackets.  For example, if
! '/usr/include/sys/stat.h' contains '#include "types.h"', GCC looks for
! 'types.h' first in '/usr/include/sys', then in its usual search path.
  
!    '#line' (*note Line Control::) does not change GCC's idea of the
  directory containing the current file.
  
!    You may put '-I-' at any point in your list of '-I' options.  This
! has two effects.  First, directories appearing before the '-I-' in the
  list are searched only for headers requested with quote marks.
! Directories after '-I-' are searched for all headers.  Second, the
  directory containing the current file is not searched for anything,
! unless it happens to be one of the directories named by an '-I' switch.
! '-I-' is deprecated, '-iquote' should be used instead.
  
!    '-I. -I-' is not the same as no '-I' options at all, and does not
! cause the same behavior for '<>' includes that '""' includes get with no
! special options.  '-I.' searches the compiler's current working
  directory for header files.  That may or may not be the same as the
  directory containing the current file.
  
!    If you need to look for headers in a directory named '-', write
! '-I./-'.
  
     There are several more ways to adjust the header search path.  They
  are generally less useful.  *Note Invocation::.
*************** contents of the file in a conditional, l
*** 847,866 ****
  
     This construct is commonly known as a "wrapper #ifndef".  When the
  header is included again, the conditional will be false, because
! `FILE_FOO_SEEN' is defined.  The preprocessor will skip over the entire
  contents of the file, and the compiler will not see it twice.
  
     CPP optimizes even further.  It remembers when a header file has a
! wrapper `#ifndef'.  If a subsequent `#include' specifies that header,
! and the macro in the `#ifndef' is still defined, it does not bother to
  rescan the file at all.
  
     You can put comments outside the wrapper.  They will not interfere
  with this optimization.
  
!    The macro `FILE_FOO_SEEN' is called the "controlling macro" or
! "guard macro".  In a user header file, the macro name should not begin
! with `_'.  In a system header file, it should begin with `__' to avoid
  conflicts with user programs.  In any kind of header file, the macro
  name should contain the name of the file and some additional text, to
  avoid conflicts with other header files.
--- 843,862 ----
  
     This construct is commonly known as a "wrapper #ifndef".  When the
  header is included again, the conditional will be false, because
! 'FILE_FOO_SEEN' is defined.  The preprocessor will skip over the entire
  contents of the file, and the compiler will not see it twice.
  
     CPP optimizes even further.  It remembers when a header file has a
! wrapper '#ifndef'.  If a subsequent '#include' specifies that header,
! and the macro in the '#ifndef' is still defined, it does not bother to
  rescan the file at all.
  
     You can put comments outside the wrapper.  They will not interfere
  with this optimization.
  
!    The macro 'FILE_FOO_SEEN' is called the "controlling macro" or "guard
! macro".  In a user header file, the macro name should not begin with
! '_'.  In a system header file, it should begin with '__' to avoid
  conflicts with user programs.  In any kind of header file, the macro
  name should contain the name of the file and some additional text, to
  avoid conflicts with other header files.
*************** File: cpp.info,  Node: Alternatives to W
*** 872,906 ****
  ===================================
  
  CPP supports two more ways of indicating that a header file should be
! read only once.  Neither one is as portable as a wrapper `#ifndef' and
  we recommend you do not use them in new programs, with the caveat that
! `#import' is standard practice in Objective-C.
  
!    CPP supports a variant of `#include' called `#import' which includes
! a file, but does so at most once.  If you use `#import' instead of
! `#include', then you don't need the conditionals inside the header file
! to prevent multiple inclusion of the contents.  `#import' is standard
! in Objective-C, but is considered a deprecated extension in C and C++.
  
!    `#import' is not a well designed feature.  It requires the users of
! a header file to know that it should only be included once.  It is much
  better for the header file's implementor to write the file so that users
! don't need to know this.  Using a wrapper `#ifndef' accomplishes this
  goal.
  
!    In the present implementation, a single use of `#import' will
! prevent the file from ever being read again, by either `#import' or
! `#include'.  You should not rely on this; do not use both `#import' and
! `#include' to refer to the same header file.
  
     Another way to prevent a header file from being included more than
! once is with the `#pragma once' directive.  If `#pragma once' is seen
  when scanning a header file, that file will never be read again, no
  matter what.
  
!    `#pragma once' does not have the problems that `#import' does, but
! it is not recognized by all preprocessors, so you cannot rely on it in
! a portable program.
  
  
  File: cpp.info,  Node: Computed Includes,  Next: Wrapper Headers,  Prev: Alternatives to Wrapper #ifndef,  Up: Header Files
--- 868,902 ----
  ===================================
  
  CPP supports two more ways of indicating that a header file should be
! read only once.  Neither one is as portable as a wrapper '#ifndef' and
  we recommend you do not use them in new programs, with the caveat that
! '#import' is standard practice in Objective-C.
  
!    CPP supports a variant of '#include' called '#import' which includes
! a file, but does so at most once.  If you use '#import' instead of
! '#include', then you don't need the conditionals inside the header file
! to prevent multiple inclusion of the contents.  '#import' is standard in
! Objective-C, but is considered a deprecated extension in C and C++.
  
!    '#import' is not a well designed feature.  It requires the users of a
! header file to know that it should only be included once.  It is much
  better for the header file's implementor to write the file so that users
! don't need to know this.  Using a wrapper '#ifndef' accomplishes this
  goal.
  
!    In the present implementation, a single use of '#import' will prevent
! the file from ever being read again, by either '#import' or '#include'.
! You should not rely on this; do not use both '#import' and '#include' to
! refer to the same header file.
  
     Another way to prevent a header file from being included more than
! once is with the '#pragma once' directive.  If '#pragma once' is seen
  when scanning a header file, that file will never be read again, no
  matter what.
  
!    '#pragma once' does not have the problems that '#import' does, but it
! is not recognized by all preprocessors, so you cannot rely on it in a
! portable program.
  
  
  File: cpp.info,  Node: Computed Includes,  Next: Wrapper Headers,  Prev: Alternatives to Wrapper #ifndef,  Up: Header Files
*************** systems, for instance.  You could do thi
*** 924,950 ****
     That rapidly becomes tedious.  Instead, the preprocessor offers the
  ability to use a macro for the header name.  This is called a "computed
  include".  Instead of writing a header name as the direct argument of
! `#include', you simply put a macro name there instead:
  
       #define SYSTEM_H "system_1.h"
       ...
       #include SYSTEM_H
  
! `SYSTEM_H' will be expanded, and the preprocessor will look for
! `system_1.h' as if the `#include' had been written that way originally.
! `SYSTEM_H' could be defined by your Makefile with a `-D' option.
  
!    You must be careful when you define the macro.  `#define' saves
  tokens, not text.  The preprocessor has no way of knowing that the macro
! will be used as the argument of `#include', so it generates ordinary
  tokens, not a header name.  This is unlikely to cause problems if you
  use double-quote includes, which are close enough to string constants.
  If you use angle brackets, however, you may have trouble.
  
     The syntax of a computed include is actually a bit more general than
! the above.  If the first non-whitespace character after `#include' is
! not `"' or `<', then the entire line is macro-expanded like running
! text would be.
  
     If the line expands to a single string constant, the contents of that
  string constant are the file to be included.  CPP does not re-examine
--- 920,946 ----
     That rapidly becomes tedious.  Instead, the preprocessor offers the
  ability to use a macro for the header name.  This is called a "computed
  include".  Instead of writing a header name as the direct argument of
! '#include', you simply put a macro name there instead:
  
       #define SYSTEM_H "system_1.h"
       ...
       #include SYSTEM_H
  
! 'SYSTEM_H' will be expanded, and the preprocessor will look for
! 'system_1.h' as if the '#include' had been written that way originally.
! 'SYSTEM_H' could be defined by your Makefile with a '-D' option.
  
!    You must be careful when you define the macro.  '#define' saves
  tokens, not text.  The preprocessor has no way of knowing that the macro
! will be used as the argument of '#include', so it generates ordinary
  tokens, not a header name.  This is unlikely to cause problems if you
  use double-quote includes, which are close enough to string constants.
  If you use angle brackets, however, you may have trouble.
  
     The syntax of a computed include is actually a bit more general than
! the above.  If the first non-whitespace character after '#include' is
! not '"' or '<', then the entire line is macro-expanded like running text
! would be.
  
     If the line expands to a single string constant, the contents of that
  string constant are the file to be included.  CPP does not re-examine
*************** escapes in the string.  Therefore
*** 954,973 ****
       #define HEADER "a\"b"
       #include HEADER
  
! looks for a file named `a\"b'.  CPP searches for the file according to
  the rules for double-quoted includes.
  
!    If the line expands to a token stream beginning with a `<' token and
! including a `>' token, then the tokens between the `<' and the first
! `>' are combined to form the filename to be included.  Any whitespace
  between tokens is reduced to a single space; then any space after the
! initial `<' is retained, but a trailing space before the closing `>' is
  ignored.  CPP searches for the file according to the rules for
  angle-bracket includes.
  
     In either case, if there are any tokens on the line after the file
! name, an error occurs and the directive is not processed.  It is also
! an error if the result of expansion does not match either of the two
  expected forms.
  
     These rules are implementation-defined behavior according to the C
--- 950,969 ----
       #define HEADER "a\"b"
       #include HEADER
  
! looks for a file named 'a\"b'.  CPP searches for the file according to
  the rules for double-quoted includes.
  
!    If the line expands to a token stream beginning with a '<' token and
! including a '>' token, then the tokens between the '<' and the first '>'
! are combined to form the filename to be included.  Any whitespace
  between tokens is reduced to a single space; then any space after the
! initial '<' is retained, but a trailing space before the closing '>' is
  ignored.  CPP searches for the file according to the rules for
  angle-bracket includes.
  
     In either case, if there are any tokens on the line after the file
! name, an error occurs and the directive is not processed.  It is also an
! error if the result of expansion does not match either of the two
  expected forms.
  
     These rules are implementation-defined behavior according to the C
*************** File: cpp.info,  Node: Wrapper Headers,
*** 983,1030 ****
  ===================
  
  Sometimes it is necessary to adjust the contents of a system-provided
! header file without editing it directly.  GCC's `fixincludes' operation
  does this, for example.  One way to do that would be to create a new
  header file with the same name and insert it in the search path before
  the original header.  That works fine as long as you're willing to
  replace the old header entirely.  But what if you want to refer to the
  old header from the new one?
  
!    You cannot simply include the old header with `#include'.  That will
  start from the beginning, and find your new header again.  If your
  header is not protected from multiple inclusion (*note Once-Only
  Headers::), it will recurse infinitely and cause a fatal error.
  
     You could include the old header with an absolute pathname:
       #include "/usr/include/old-header.h"
!    This works, but is not clean; should the system headers ever move,
! you would have to edit the new headers to match.
  
     There is no way to solve this problem within the C standard, but you
! can use the GNU extension `#include_next'.  It means, "Include the
! _next_ file with this name".  This directive works like `#include'
! except in searching for the specified file: it starts searching the
! list of header file directories _after_ the directory in which the
! current file was found.
  
!    Suppose you specify `-I /usr/local/include', and the list of
! directories to search also includes `/usr/include'; and suppose both
! directories contain `signal.h'.  Ordinary `#include <signal.h>' finds
! the file under `/usr/local/include'.  If that file contains
! `#include_next <signal.h>', it starts searching after that directory,
! and finds the file in `/usr/include'.
  
!    `#include_next' does not distinguish between `<FILE>' and `"FILE"'
! inclusion, nor does it check that the file you specify has the same
! name as the current file.  It simply looks for the file named, starting
! with the directory in the search path after the one where the current
! file was found.
  
!    The use of `#include_next' can lead to great confusion.  We
! recommend it be used only when there is no other alternative.  In
! particular, it should not be used in the headers belonging to a specific
! program; it should be used only to make global corrections along the
! lines of `fixincludes'.
  
  
  File: cpp.info,  Node: System Headers,  Prev: Wrapper Headers,  Up: Header Files
--- 979,1026 ----
  ===================
  
  Sometimes it is necessary to adjust the contents of a system-provided
! header file without editing it directly.  GCC's 'fixincludes' operation
  does this, for example.  One way to do that would be to create a new
  header file with the same name and insert it in the search path before
  the original header.  That works fine as long as you're willing to
  replace the old header entirely.  But what if you want to refer to the
  old header from the new one?
  
!    You cannot simply include the old header with '#include'.  That will
  start from the beginning, and find your new header again.  If your
  header is not protected from multiple inclusion (*note Once-Only
  Headers::), it will recurse infinitely and cause a fatal error.
  
     You could include the old header with an absolute pathname:
       #include "/usr/include/old-header.h"
! This works, but is not clean; should the system headers ever move, you
! would have to edit the new headers to match.
  
     There is no way to solve this problem within the C standard, but you
! can use the GNU extension '#include_next'.  It means, "Include the
! _next_ file with this name".  This directive works like '#include'
! except in searching for the specified file: it starts searching the list
! of header file directories _after_ the directory in which the current
! file was found.
  
!    Suppose you specify '-I /usr/local/include', and the list of
! directories to search also includes '/usr/include'; and suppose both
! directories contain 'signal.h'.  Ordinary '#include <signal.h>' finds
! the file under '/usr/local/include'.  If that file contains
! '#include_next <signal.h>', it starts searching after that directory,
! and finds the file in '/usr/include'.
  
!    '#include_next' does not distinguish between '<FILE>' and '"FILE"'
! inclusion, nor does it check that the file you specify has the same name
! as the current file.  It simply looks for the file named, starting with
! the directory in the search path after the one where the current file
! was found.
  
!    The use of '#include_next' can lead to great confusion.  We recommend
! it be used only when there is no other alternative.  In particular, it
! should not be used in the headers belonging to a specific program; it
! should be used only to make global corrections along the lines of
! 'fixincludes'.
  
  
  File: cpp.info,  Node: System Headers,  Prev: Wrapper Headers,  Up: Header Files
*************** File: cpp.info,  Node: System Headers,
*** 1035,1072 ****
  The header files declaring interfaces to the operating system and
  runtime libraries often cannot be written in strictly conforming C.
  Therefore, GCC gives code found in "system headers" special treatment.
! All warnings, other than those generated by `#warning' (*note
  Diagnostics::), are suppressed while GCC is processing a system header.
  Macros defined in a system header are immune to a few warnings wherever
! they are expanded.  This immunity is granted on an ad-hoc basis, when
! we find that a warning generates lots of false positives because of
! code in macros defined in system headers.
  
     Normally, only the headers found in specific directories are
! considered system headers.  These directories are determined when GCC
! is compiled.  There are, however, two ways to make normal headers into
  system headers.
  
!    The `-isystem' command-line option adds its argument to the list of
! directories to search for headers, just like `-I'.  Any headers found
! in that directory will be considered system headers.
  
!    All directories named by `-isystem' are searched _after_ all
! directories named by `-I', no matter what their order was on the
! command line.  If the same directory is named by both `-I' and
! `-isystem', the `-I' option is ignored.  GCC provides an informative
! message when this occurs if `-v' is used.
  
!    There is also a directive, `#pragma GCC system_header', which tells
! GCC to consider the rest of the current include file a system header,
! no matter where it was found.  Code that comes before the `#pragma' in
! the file will not be affected.  `#pragma GCC system_header' has no
! effect in the primary source file.
  
     On very old systems, some of the pre-defined system header
  directories get even more special treatment.  GNU C++ considers code in
! headers found in those directories to be surrounded by an `extern "C"'
! block.  There is no way to request this behavior with a `#pragma', or
  from the command line.
  
  
--- 1031,1068 ----
  The header files declaring interfaces to the operating system and
  runtime libraries often cannot be written in strictly conforming C.
  Therefore, GCC gives code found in "system headers" special treatment.
! All warnings, other than those generated by '#warning' (*note
  Diagnostics::), are suppressed while GCC is processing a system header.
  Macros defined in a system header are immune to a few warnings wherever
! they are expanded.  This immunity is granted on an ad-hoc basis, when we
! find that a warning generates lots of false positives because of code in
! macros defined in system headers.
  
     Normally, only the headers found in specific directories are
! considered system headers.  These directories are determined when GCC is
! compiled.  There are, however, two ways to make normal headers into
  system headers.
  
!    The '-isystem' command-line option adds its argument to the list of
! directories to search for headers, just like '-I'.  Any headers found in
! that directory will be considered system headers.
  
!    All directories named by '-isystem' are searched _after_ all
! directories named by '-I', no matter what their order was on the command
! line.  If the same directory is named by both '-I' and '-isystem', the
! '-I' option is ignored.  GCC provides an informative message when this
! occurs if '-v' is used.
  
!    There is also a directive, '#pragma GCC system_header', which tells
! GCC to consider the rest of the current include file a system header, no
! matter where it was found.  Code that comes before the '#pragma' in the
! file will not be affected.  '#pragma GCC system_header' has no effect in
! the primary source file.
  
     On very old systems, some of the pre-defined system header
  directories get even more special treatment.  GNU C++ considers code in
! headers found in those directories to be surrounded by an 'extern "C"'
! block.  There is no way to request this behavior with a '#pragma', or
  from the command line.
  
  
*************** File: cpp.info,  Node: Macros,  Next: Co
*** 1077,1093 ****
  
  A "macro" is a fragment of code which has been given a name.  Whenever
  the name is used, it is replaced by the contents of the macro.  There
! are two kinds of macros.  They differ mostly in what they look like
! when they are used.  "Object-like" macros resemble data objects when
! used, "function-like" macros resemble function calls.
  
     You may define any valid identifier as a macro, even if it is a C
  keyword.  The preprocessor does not know anything about keywords.  This
! can be useful if you wish to hide a keyword such as `const' from an
  older compiler that does not understand it.  However, the preprocessor
! operator `defined' (*note Defined::) can never be defined as a macro,
! and C++'s named operators (*note C++ Named Operators::) cannot be
! macros when you are compiling C++.
  
  * Menu:
  
--- 1073,1089 ----
  
  A "macro" is a fragment of code which has been given a name.  Whenever
  the name is used, it is replaced by the contents of the macro.  There
! are two kinds of macros.  They differ mostly in what they look like when
! they are used.  "Object-like" macros resemble data objects when used,
! "function-like" macros resemble function calls.
  
     You may define any valid identifier as a macro, even if it is a C
  keyword.  The preprocessor does not know anything about keywords.  This
! can be useful if you wish to hide a keyword such as 'const' from an
  older compiler that does not understand it.  However, the preprocessor
! operator 'defined' (*note Defined::) can never be defined as a macro,
! and C++'s named operators (*note C++ Named Operators::) cannot be macros
! when you are compiling C++.
  
  * Menu:
  
*************** a code fragment.  It is called object-li
*** 1113,1133 ****
  object in code that uses it.  They are most commonly used to give
  symbolic names to numeric constants.
  
!    You create macros with the `#define' directive.  `#define' is
  followed by the name of the macro and then the token sequence it should
  be an abbreviation for, which is variously referred to as the macro's
  "body", "expansion" or "replacement list".  For example,
  
       #define BUFFER_SIZE 1024
  
! defines a macro named `BUFFER_SIZE' as an abbreviation for the token
! `1024'.  If somewhere after this `#define' directive there comes a C
  statement of the form
  
       foo = (char *) malloc (BUFFER_SIZE);
  
  then the C preprocessor will recognize and "expand" the macro
! `BUFFER_SIZE'.  The C compiler will see the same tokens as it would if
  you had written
  
       foo = (char *) malloc (1024);
--- 1109,1129 ----
  object in code that uses it.  They are most commonly used to give
  symbolic names to numeric constants.
  
!    You create macros with the '#define' directive.  '#define' is
  followed by the name of the macro and then the token sequence it should
  be an abbreviation for, which is variously referred to as the macro's
  "body", "expansion" or "replacement list".  For example,
  
       #define BUFFER_SIZE 1024
  
! defines a macro named 'BUFFER_SIZE' as an abbreviation for the token
! '1024'.  If somewhere after this '#define' directive there comes a C
  statement of the form
  
       foo = (char *) malloc (BUFFER_SIZE);
  
  then the C preprocessor will recognize and "expand" the macro
! 'BUFFER_SIZE'.  The C compiler will see the same tokens as it would if
  you had written
  
       foo = (char *) malloc (1024);
*************** you had written
*** 1136,1142 ****
  easier to read when it is possible to tell at a glance which names are
  macros.
  
!    The macro's body ends at the end of the `#define' line.  You may
  continue the definition onto multiple lines, if necessary, using
  backslash-newline.  When the macro is expanded, however, it will all
  come out on one line.  For example,
--- 1132,1138 ----
  easier to read when it is possible to tell at a glance which names are
  macros.
  
!    The macro's body ends at the end of the '#define' line.  You may
  continue the definition onto multiple lines, if necessary, using
  backslash-newline.  When the macro is expanded, however, it will all
  come out on one line.  For example,
*************** macros to expand.  For example,
*** 1178,1195 ****
            ==> BUFSIZE
            ==> 1024
  
! `TABLESIZE' is expanded first to produce `BUFSIZE', then that macro is
! expanded to produce the final result, `1024'.
  
!    Notice that `BUFSIZE' was not defined when `TABLESIZE' was defined.
! The `#define' for `TABLESIZE' uses exactly the expansion you
! specify--in this case, `BUFSIZE'--and does not check to see whether it
! too contains macro names.  Only when you _use_ `TABLESIZE' is the
! result of its expansion scanned for more macro names.
  
!    This makes a difference if you change the definition of `BUFSIZE' at
! some point in the source file.  `TABLESIZE', defined as shown, will
! always expand using the definition of `BUFSIZE' that is currently in
  effect:
  
       #define BUFSIZE 1020
--- 1174,1191 ----
            ==> BUFSIZE
            ==> 1024
  
! 'TABLESIZE' is expanded first to produce 'BUFSIZE', then that macro is
! expanded to produce the final result, '1024'.
  
!    Notice that 'BUFSIZE' was not defined when 'TABLESIZE' was defined.
! The '#define' for 'TABLESIZE' uses exactly the expansion you specify--in
! this case, 'BUFSIZE'--and does not check to see whether it too contains
! macro names.  Only when you _use_ 'TABLESIZE' is the result of its
! expansion scanned for more macro names.
  
!    This makes a difference if you change the definition of 'BUFSIZE' at
! some point in the source file.  'TABLESIZE', defined as shown, will
! always expand using the definition of 'BUFSIZE' that is currently in
  effect:
  
       #define BUFSIZE 1020
*************** effect:
*** 1197,1203 ****
       #undef BUFSIZE
       #define BUFSIZE 37
  
! Now `TABLESIZE' expands (in two stages) to `37'.
  
     If the expansion of a macro contains its own name, either directly or
  via intermediate macros, it is not expanded again when the expansion is
--- 1193,1199 ----
       #undef BUFSIZE
       #define BUFSIZE 37
  
! Now 'TABLESIZE' expands (in two stages) to '37'.
  
     If the expansion of a macro contains its own name, either directly or
  via intermediate macros, it is not expanded again when the expansion is
*************** File: cpp.info,  Node: Function-like Mac
*** 1211,1218 ****
  ========================
  
  You can also define macros whose use looks like a function call.  These
! are called "function-like macros".  To define a function-like macro,
! you use the same `#define' directive, but you put a pair of parentheses
  immediately after the macro name.  For example,
  
       #define lang_init()  c_init()
--- 1207,1214 ----
  ========================
  
  You can also define macros whose use looks like a function call.  These
! are called "function-like macros".  To define a function-like macro, you
! use the same '#define' directive, but you put a pair of parentheses
  immediately after the macro name.  For example,
  
       #define lang_init()  c_init()
*************** same name, and you wish to use the funct
*** 1230,1238 ****
         foo();
         funcptr = foo;
  
!    Here the call to `foo()' will use the macro, but the function
! pointer will get the address of the real function.  If the macro were to
! be expanded, it would cause a syntax error.
  
     If you put spaces between the macro name and the parentheses in the
  macro definition, that does not define a function-like macro, it defines
--- 1226,1234 ----
         foo();
         funcptr = foo;
  
!    Here the call to 'foo()' will use the macro, but the function pointer
! will get the address of the real function.  If the macro were to be
! expanded, it would cause a syntax error.
  
     If you put spaces between the macro name and the parentheses in the
  macro definition, that does not define a function-like macro, it defines
*************** parentheses.
*** 1245,1251 ****
  
     The first two pairs of parentheses in this expansion come from the
  macro.  The third is the pair that was originally after the macro
! invocation.  Since `lang_init' is an object-like macro, it does not
  consume those parentheses.
  
  
--- 1241,1247 ----
  
     The first two pairs of parentheses in this expansion come from the
  macro.  The third is the pair that was originally after the macro
! invocation.  Since 'lang_init' is an object-like macro, it does not
  consume those parentheses.
  
  
*************** File: cpp.info,  Node: Macro Arguments,
*** 1254,1264 ****
  3.3 Macro Arguments
  ===================
  
! Function-like macros can take "arguments", just like true functions.
! To define a macro that uses arguments, you insert "parameters" between
! the pair of parentheses in the macro definition that make the macro
! function-like.  The parameters must be valid C identifiers, separated
! by commas and optionally whitespace.
  
     To invoke a macro that takes arguments, you write the name of the
  macro followed by a list of "actual arguments" in parentheses, separated
--- 1250,1260 ----
  3.3 Macro Arguments
  ===================
  
! Function-like macros can take "arguments", just like true functions.  To
! define a macro that uses arguments, you insert "parameters" between the
! pair of parentheses in the macro definition that make the macro
! function-like.  The parameters must be valid C identifiers, separated by
! commas and optionally whitespace.
  
     To invoke a macro that takes arguments, you write the name of the
  macro followed by a list of "actual arguments" in parentheses, separated
*************** prevent a comma from separating argument
*** 1290,1308 ****
  
       macro (array[x = y, x + 1])
  
! passes two arguments to `macro': `array[x = y' and `x + 1]'.  If you
! want to supply `array[x = y, x + 1]' as an argument, you can write it
! as `array[(x = y, x + 1)]', which is equivalent C code.
  
     All arguments to a macro are completely macro-expanded before they
  are substituted into the macro body.  After substitution, the complete
  text is scanned again for macros to expand, including the arguments.
! This rule may seem strange, but it is carefully designed so you need
! not worry about whether any function call is actually a macro
! invocation.  You can run into trouble if you try to be too clever,
! though.  *Note Argument Prescan::, for detailed discussion.
  
!    For example, `min (min (a, b), c)' is first expanded to
  
         min (((a) < (b) ? (a) : (b)), (c))
  
--- 1286,1304 ----
  
       macro (array[x = y, x + 1])
  
! passes two arguments to 'macro': 'array[x = y' and 'x + 1]'.  If you
! want to supply 'array[x = y, x + 1]' as an argument, you can write it as
! 'array[(x = y, x + 1)]', which is equivalent C code.
  
     All arguments to a macro are completely macro-expanded before they
  are substituted into the macro body.  After substitution, the complete
  text is scanned again for macros to expand, including the arguments.
! This rule may seem strange, but it is carefully designed so you need not
! worry about whether any function call is actually a macro invocation.
! You can run into trouble if you try to be too clever, though.  *Note
! Argument Prescan::, for detailed discussion.
  
!    For example, 'min (min (a, b), c)' is first expanded to
  
         min (((a) < (b) ? (a) : (b)), (c))
  
*************** and then to
*** 1318,1339 ****
  preprocessor (but many macros will then expand to invalid code).  You
  cannot leave out arguments entirely; if a macro takes two arguments,
  there must be exactly one comma at the top level of its argument list.
! Here are some silly examples using `min':
  
       min(, b)        ==> ((   ) < (b) ? (   ) : (b))
       min(a, )        ==> ((a  ) < ( ) ? (a  ) : ( ))
       min(,)          ==> ((   ) < ( ) ? (   ) : ( ))
       min((,),)       ==> (((,)) < ( ) ? ((,)) : ( ))
  
!      min()      error--> macro "min" requires 2 arguments, but only 1 given
!      min(,,)    error--> macro "min" passed 3 arguments, but takes just 2
  
!    Whitespace is not a preprocessing token, so if a macro `foo' takes
! one argument, `foo ()' and `foo ( )' both supply it an empty argument.
  Previous GNU preprocessor implementations and documentation were
! incorrect on this point, insisting that a function-like macro that
! takes a single argument be passed a space if an empty argument was
! required.
  
     Macro parameters appearing inside string literals are not replaced by
  their corresponding actual arguments.
--- 1314,1334 ----
  preprocessor (but many macros will then expand to invalid code).  You
  cannot leave out arguments entirely; if a macro takes two arguments,
  there must be exactly one comma at the top level of its argument list.
! Here are some silly examples using 'min':
  
       min(, b)        ==> ((   ) < (b) ? (   ) : (b))
       min(a, )        ==> ((a  ) < ( ) ? (a  ) : ( ))
       min(,)          ==> ((   ) < ( ) ? (   ) : ( ))
       min((,),)       ==> (((,)) < ( ) ? ((,)) : ( ))
  
!      min()      error-> macro "min" requires 2 arguments, but only 1 given
!      min(,,)    error-> macro "min" passed 3 arguments, but takes just 2
  
!    Whitespace is not a preprocessing token, so if a macro 'foo' takes
! one argument, 'foo ()' and 'foo ( )' both supply it an empty argument.
  Previous GNU preprocessor implementations and documentation were
! incorrect on this point, insisting that a function-like macro that takes
! a single argument be passed a space if an empty argument was required.
  
     Macro parameters appearing inside string literals are not replaced by
  their corresponding actual arguments.
*************** File: cpp.info,  Node: Stringification,
*** 1349,1356 ****
  
  Sometimes you may want to convert a macro argument into a string
  constant.  Parameters are not replaced inside string constants, but you
! can use the `#' preprocessing operator instead.  When a macro parameter
! is used with a leading `#', the preprocessor replaces it with the
  literal text of the actual argument, converted to a string constant.
  Unlike normal parameter replacement, the argument is not macro-expanded
  first.  This is called "stringification".
--- 1344,1351 ----
  
  Sometimes you may want to convert a macro argument into a string
  constant.  Parameters are not replaced inside string constants, but you
! can use the '#' preprocessing operator instead.  When a macro parameter
! is used with a leading '#', the preprocessor replaces it with the
  literal text of the actual argument, converted to a string constant.
  Unlike normal parameter replacement, the argument is not macro-expanded
  first.  This is called "stringification".
*************** first.  This is called "stringification"
*** 1358,1366 ****
     There is no way to combine an argument with surrounding text and
  stringify it all together.  Instead, you can write a series of adjacent
  string constants and stringified arguments.  The preprocessor will
! replace the stringified arguments with string constants.  The C
! compiler will then combine all the adjacent string constants into one
! long string.
  
     Here is an example of a macro definition that uses stringification:
  
--- 1353,1361 ----
     There is no way to combine an argument with surrounding text and
  stringify it all together.  Instead, you can write a series of adjacent
  string constants and stringified arguments.  The preprocessor will
! replace the stringified arguments with string constants.  The C compiler
! will then combine all the adjacent string constants into one long
! string.
  
     Here is an example of a macro definition that uses stringification:
  
*************** long string.
*** 1372,1394 ****
            ==> do { if (x == 0)
                  fprintf (stderr, "Warning: " "x == 0" "\n"); } while (0);
  
! The argument for `EXP' is substituted once, as-is, into the `if'
! statement, and once, stringified, into the argument to `fprintf'.  If
! `x' were a macro, it would be expanded in the `if' statement, but not
! in the string.
  
!    The `do' and `while (0)' are a kludge to make it possible to write
! `WARN_IF (ARG);', which the resemblance of `WARN_IF' to a function
! would make C programmers want to do; see *note Swallowing the
! Semicolon::.
  
     Stringification in C involves more than putting double-quote
  characters around the fragment.  The preprocessor backslash-escapes the
! quotes surrounding embedded string constants, and all backslashes
! within string and character constants, in order to get a valid C string
! constant with the proper contents.  Thus, stringifying `p = "foo\n";'
  results in "p = \"foo\\n\";".  However, backslashes that are not inside
! string or character constants are not duplicated: `\n' by itself
  stringifies to "\n".
  
     All leading and trailing whitespace in text being stringified is
--- 1367,1388 ----
            ==> do { if (x == 0)
                  fprintf (stderr, "Warning: " "x == 0" "\n"); } while (0);
  
! The argument for 'EXP' is substituted once, as-is, into the 'if'
! statement, and once, stringified, into the argument to 'fprintf'.  If
! 'x' were a macro, it would be expanded in the 'if' statement, but not in
! the string.
  
!    The 'do' and 'while (0)' are a kludge to make it possible to write
! 'WARN_IF (ARG);', which the resemblance of 'WARN_IF' to a function would
! make C programmers want to do; see *note Swallowing the Semicolon::.
  
     Stringification in C involves more than putting double-quote
  characters around the fragment.  The preprocessor backslash-escapes the
! quotes surrounding embedded string constants, and all backslashes within
! string and character constants, in order to get a valid C string
! constant with the proper contents.  Thus, stringifying 'p = "foo\n";'
  results in "p = \"foo\\n\";".  However, backslashes that are not inside
! string or character constants are not duplicated: '\n' by itself
  stringifies to "\n".
  
     All leading and trailing whitespace in text being stringified is
*************** you have to use two levels of macros.
*** 1413,1423 ****
            ==> str (4)
            ==> "4"
  
!    `s' is stringified when it is used in `str', so it is not
! macro-expanded first.  But `s' is an ordinary argument to `xstr', so it
! is completely macro-expanded before `xstr' itself is expanded (*note
! Argument Prescan::).  Therefore, by the time `str' gets to its
! argument, it has already been macro-expanded.
  
  
  File: cpp.info,  Node: Concatenation,  Next: Variadic Macros,  Prev: Stringification,  Up: Macros
--- 1407,1417 ----
            ==> str (4)
            ==> "4"
  
!    's' is stringified when it is used in 'str', so it is not
! macro-expanded first.  But 's' is an ordinary argument to 'xstr', so it
! is completely macro-expanded before 'xstr' itself is expanded (*note
! Argument Prescan::).  Therefore, by the time 'str' gets to its argument,
! it has already been macro-expanded.
  
  
  File: cpp.info,  Node: Concatenation,  Next: Variadic Macros,  Prev: Stringification,  Up: Macros
*************** File: cpp.info,  Node: Concatenation,  N
*** 1426,1464 ****
  =================
  
  It is often useful to merge two tokens into one while expanding macros.
! This is called "token pasting" or "token concatenation".  The `##'
  preprocessing operator performs token pasting.  When a macro is
! expanded, the two tokens on either side of each `##' operator are
! combined into a single token, which then replaces the `##' and the two
  original tokens in the macro expansion.  Usually both will be
  identifiers, or one will be an identifier and the other a preprocessing
  number.  When pasted, they make a longer identifier.  This isn't the
  only valid case.  It is also possible to concatenate two numbers (or a
! number and a name, such as `1.5' and `e3') into a number.  Also,
! multi-character operators such as `+=' can be formed by token pasting.
  
     However, two tokens that don't together form a valid token cannot be
! pasted together.  For example, you cannot concatenate `x' with `+' in
  either order.  If you try, the preprocessor issues a warning and emits
  the two tokens.  Whether it puts white space between the tokens is
! undefined.  It is common to find unnecessary uses of `##' in complex
  macros.  If you get this warning, it is likely that you can simply
! remove the `##'.
  
!    Both the tokens combined by `##' could come from the macro body, but
  you could just as well write them as one token in the first place.
  Token pasting is most useful when one or both of the tokens comes from a
! macro argument.  If either of the tokens next to an `##' is a parameter
! name, it is replaced by its actual argument before `##' executes.  As
  with stringification, the actual argument is not macro-expanded first.
! If the argument is empty, that `##' has no effect.
  
     Keep in mind that the C preprocessor converts comments to whitespace
  before macros are even considered.  Therefore, you cannot create a
! comment by concatenating `/' and `*'.  You can put as much whitespace
! between `##' and its operands as you like, including comments, and you
! can put comments in arguments that will be concatenated.  However, it
! is an error if `##' appears at either end of a macro body.
  
     Consider a C program that interprets named commands.  There probably
  needs to be a table of commands, perhaps an array of structures declared
--- 1420,1458 ----
  =================
  
  It is often useful to merge two tokens into one while expanding macros.
! This is called "token pasting" or "token concatenation".  The '##'
  preprocessing operator performs token pasting.  When a macro is
! expanded, the two tokens on either side of each '##' operator are
! combined into a single token, which then replaces the '##' and the two
  original tokens in the macro expansion.  Usually both will be
  identifiers, or one will be an identifier and the other a preprocessing
  number.  When pasted, they make a longer identifier.  This isn't the
  only valid case.  It is also possible to concatenate two numbers (or a
! number and a name, such as '1.5' and 'e3') into a number.  Also,
! multi-character operators such as '+=' can be formed by token pasting.
  
     However, two tokens that don't together form a valid token cannot be
! pasted together.  For example, you cannot concatenate 'x' with '+' in
  either order.  If you try, the preprocessor issues a warning and emits
  the two tokens.  Whether it puts white space between the tokens is
! undefined.  It is common to find unnecessary uses of '##' in complex
  macros.  If you get this warning, it is likely that you can simply
! remove the '##'.
  
!    Both the tokens combined by '##' could come from the macro body, but
  you could just as well write them as one token in the first place.
  Token pasting is most useful when one or both of the tokens comes from a
! macro argument.  If either of the tokens next to an '##' is a parameter
! name, it is replaced by its actual argument before '##' executes.  As
  with stringification, the actual argument is not macro-expanded first.
! If the argument is empty, that '##' has no effect.
  
     Keep in mind that the C preprocessor converts comments to whitespace
  before macros are even considered.  Therefore, you cannot create a
! comment by concatenating '/' and '*'.  You can put as much whitespace
! between '##' and its operands as you like, including comments, and you
! can put comments in arguments that will be concatenated.  However, it is
! an error if '##' appears at either end of a macro body.
  
     Consider a C program that interprets named commands.  There probably
  needs to be a table of commands, perhaps an array of structures declared
*************** as follows:
*** 1477,1488 ****
         ...
       };
  
!    It would be cleaner not to have to give each command name twice,
! once in the string constant and once in the function name.  A macro
! which takes the name of a command as an argument can make this
! unnecessary.  The string constant can be created with stringification,
! and the function name by concatenating the argument with `_command'.
! Here is how it is done:
  
       #define COMMAND(NAME)  { #NAME, NAME ## _command }
  
--- 1471,1482 ----
         ...
       };
  
!    It would be cleaner not to have to give each command name twice, once
! in the string constant and once in the function name.  A macro which
! takes the name of a command as an argument can make this unnecessary.
! The string constant can be created with stringification, and the
! function name by concatenating the argument with '_command'.  Here is
! how it is done:
  
       #define COMMAND(NAME)  { #NAME, NAME ## _command }
  
*************** a function.  Here is an example:
*** 1508,1514 ****
     This kind of macro is called "variadic".  When the macro is invoked,
  all the tokens in its argument list after the last named argument (this
  macro has none), including any commas, become the "variable argument".
! This sequence of tokens replaces the identifier `__VA_ARGS__' in the
  macro body wherever it appears.  Thus, we have this expansion:
  
       eprintf ("%s:%d: ", input_file, lineno)
--- 1502,1508 ----
     This kind of macro is called "variadic".  When the macro is invoked,
  all the tokens in its argument list after the last named argument (this
  macro has none), including any commas, become the "variable argument".
! This sequence of tokens replaces the identifier '__VA_ARGS__' in the
  macro body wherever it appears.  Thus, we have this expansion:
  
       eprintf ("%s:%d: ", input_file, lineno)
*************** macro body wherever it appears.  Thus, w
*** 1516,1538 ****
  
     The variable argument is completely macro-expanded before it is
  inserted into the macro expansion, just like an ordinary argument.  You
! may use the `#' and `##' operators to stringify the variable argument
! or to paste its leading or trailing token with another token.  (But see
! below for an important special case for `##'.)
  
     If your macro is complicated, you may want a more descriptive name
! for the variable argument than `__VA_ARGS__'.  CPP permits this, as an
! extension.  You may write an argument name immediately before the
! `...'; that name is used for the variable argument.  The `eprintf'
! macro above could be written
  
       #define eprintf(args...) fprintf (stderr, args)
  
! using this extension.  You cannot use `__VA_ARGS__' and this extension
  in the same macro.
  
     You can have named arguments as well as variable arguments in a
! variadic macro.  We could define `eprintf' like this, instead:
  
       #define eprintf(format, ...) fprintf (stderr, format, __VA_ARGS__)
  
--- 1510,1532 ----
  
     The variable argument is completely macro-expanded before it is
  inserted into the macro expansion, just like an ordinary argument.  You
! may use the '#' and '##' operators to stringify the variable argument or
! to paste its leading or trailing token with another token.  (But see
! below for an important special case for '##'.)
  
     If your macro is complicated, you may want a more descriptive name
! for the variable argument than '__VA_ARGS__'.  CPP permits this, as an
! extension.  You may write an argument name immediately before the '...';
! that name is used for the variable argument.  The 'eprintf' macro above
! could be written
  
       #define eprintf(args...) fprintf (stderr, args)
  
! using this extension.  You cannot use '__VA_ARGS__' and this extension
  in the same macro.
  
     You can have named arguments as well as variable arguments in a
! variadic macro.  We could define 'eprintf' like this, instead:
  
       #define eprintf(format, ...) fprintf (stderr, format, __VA_ARGS__)
  
*************** This formulation looks more descriptive,
*** 1540,1547 ****
  flexible: you must now supply at least one argument after the format
  string.  In standard C, you cannot omit the comma separating the named
  argument from the variable arguments.  Furthermore, if you leave the
! variable argument empty, you will get a syntax error, because there
! will be an extra comma after the format string.
  
       eprintf("success!\n", );
            ==> fprintf(stderr, "success!\n", );
--- 1534,1541 ----
  flexible: you must now supply at least one argument after the format
  string.  In standard C, you cannot omit the comma separating the named
  argument from the variable arguments.  Furthermore, if you leave the
! variable argument empty, you will get a syntax error, because there will
! be an extra comma after the format string.
  
       eprintf("success!\n", );
            ==> fprintf(stderr, "success!\n", );
*************** First, you are allowed to leave the vari
*** 1552,1597 ****
       eprintf ("success!\n")
            ==> fprintf(stderr, "success!\n", );
  
! Second, the `##' token paste operator has a special meaning when placed
  between a comma and a variable argument.  If you write
  
       #define eprintf(format, ...) fprintf (stderr, format, ##__VA_ARGS__)
  
! and the variable argument is left out when the `eprintf' macro is used,
! then the comma before the `##' will be deleted.  This does _not_ happen
! if you pass an empty argument, nor does it happen if the token
! preceding `##' is anything other than a comma.
  
       eprintf ("success!\n")
            ==> fprintf(stderr, "success!\n");
  
  The above explanation is ambiguous about the case where the only macro
! parameter is a variable arguments parameter, as it is meaningless to
! try to distinguish whether no argument at all is an empty argument or a
! missing argument.  In this case the C99 standard is clear that the
! comma must remain, however the existing GCC extension used to swallow
! the comma.  So CPP retains the comma when conforming to a specific C
  standard, and drops it otherwise.
  
!    C99 mandates that the only place the identifier `__VA_ARGS__' can
  appear is in the replacement list of a variadic macro.  It may not be
! used as a macro name, macro argument name, or within a different type
! of macro.  It may also be forbidden in open text; the standard is
  ambiguous.  We recommend you avoid using it except for its defined
  purpose.
  
     Variadic macros are a new feature in C99.  GNU CPP has supported them
! for a long time, but only with a named variable argument (`args...',
! not `...' and `__VA_ARGS__').  If you are concerned with portability to
  previous versions of GCC, you should use only named variable arguments.
  On the other hand, if you are concerned with portability to other
! conforming implementations of C99, you should use only `__VA_ARGS__'.
  
     Previous versions of CPP implemented the comma-deletion extension
  much more generally.  We have restricted it in this release to minimize
  the differences from C99.  To get the same effect with both this and
! previous versions of GCC, the token preceding the special `##' must be
! a comma, and there must be white space between that comma and whatever
  comes immediately before it:
  
       #define eprintf(format, args...) fprintf (stderr, format , ##args)
--- 1546,1591 ----
       eprintf ("success!\n")
            ==> fprintf(stderr, "success!\n", );
  
! Second, the '##' token paste operator has a special meaning when placed
  between a comma and a variable argument.  If you write
  
       #define eprintf(format, ...) fprintf (stderr, format, ##__VA_ARGS__)
  
! and the variable argument is left out when the 'eprintf' macro is used,
! then the comma before the '##' will be deleted.  This does _not_ happen
! if you pass an empty argument, nor does it happen if the token preceding
! '##' is anything other than a comma.
  
       eprintf ("success!\n")
            ==> fprintf(stderr, "success!\n");
  
  The above explanation is ambiguous about the case where the only macro
! parameter is a variable arguments parameter, as it is meaningless to try
! to distinguish whether no argument at all is an empty argument or a
! missing argument.  In this case the C99 standard is clear that the comma
! must remain, however the existing GCC extension used to swallow the
! comma.  So CPP retains the comma when conforming to a specific C
  standard, and drops it otherwise.
  
!    C99 mandates that the only place the identifier '__VA_ARGS__' can
  appear is in the replacement list of a variadic macro.  It may not be
! used as a macro name, macro argument name, or within a different type of
! macro.  It may also be forbidden in open text; the standard is
  ambiguous.  We recommend you avoid using it except for its defined
  purpose.
  
     Variadic macros are a new feature in C99.  GNU CPP has supported them
! for a long time, but only with a named variable argument ('args...', not
! '...' and '__VA_ARGS__').  If you are concerned with portability to
  previous versions of GCC, you should use only named variable arguments.
  On the other hand, if you are concerned with portability to other
! conforming implementations of C99, you should use only '__VA_ARGS__'.
  
     Previous versions of CPP implemented the comma-deletion extension
  much more generally.  We have restricted it in this release to minimize
  the differences from C99.  To get the same effect with both this and
! previous versions of GCC, the token preceding the special '##' must be a
! comma, and there must be white space between that comma and whatever
  comes immediately before it:
  
       #define eprintf(format, args...) fprintf (stderr, format , ##args)
*************** File: cpp.info,  Node: Standard Predefin
*** 1625,1649 ****
  --------------------------------
  
  The standard predefined macros are specified by the relevant language
! standards, so they are available with all compilers that implement
! those standards.  Older compilers may not provide all of them.  Their
! names all start with double underscores.
  
! `__FILE__'
       This macro expands to the name of the current input file, in the
       form of a C string constant.  This is the path by which the
       preprocessor opened the file, not the short name specified in
!      `#include' or as the input file name argument.  For example,
!      `"/usr/local/include/myheader.h"' is a possible expansion of this
       macro.
  
! `__LINE__'
!      This macro expands to the current input line number, in the form
!      of a decimal integer constant.  While we call it a predefined
!      macro, it's a pretty strange macro, since its "definition" changes
!      with each new line of source code.
  
!    `__FILE__' and `__LINE__' are useful in generating an error message
  to report an inconsistency detected by the program; the message can
  state the source line at which the inconsistency was detected.  For
  example,
--- 1619,1643 ----
  --------------------------------
  
  The standard predefined macros are specified by the relevant language
! standards, so they are available with all compilers that implement those
! standards.  Older compilers may not provide all of them.  Their names
! all start with double underscores.
  
! '__FILE__'
       This macro expands to the name of the current input file, in the
       form of a C string constant.  This is the path by which the
       preprocessor opened the file, not the short name specified in
!      '#include' or as the input file name argument.  For example,
!      '"/usr/local/include/myheader.h"' is a possible expansion of this
       macro.
  
! '__LINE__'
!      This macro expands to the current input line number, in the form of
!      a decimal integer constant.  While we call it a predefined macro,
!      it's a pretty strange macro, since its "definition" changes with
!      each new line of source code.
  
!    '__FILE__' and '__LINE__' are useful in generating an error message
  to report an inconsistency detected by the program; the message can
  state the source line at which the inconsistency was detected.  For
  example,
*************** example,
*** 1653,1755 ****
                        "%d at %s, line %d.",
                length, __FILE__, __LINE__);
  
!    An `#include' directive changes the expansions of `__FILE__' and
! `__LINE__' to correspond to the included file.  At the end of that
! file, when processing resumes on the input file that contained the
! `#include' directive, the expansions of `__FILE__' and `__LINE__'
! revert to the values they had before the `#include' (but `__LINE__' is
! then incremented by one as processing moves to the line after the
! `#include').
  
!    A `#line' directive changes `__LINE__', and may change `__FILE__' as
  well.  *Note Line Control::.
  
!    C99 introduces `__func__', and GCC has provided `__FUNCTION__' for a
! long time.  Both of these are strings containing the name of the
! current function (there are slight semantic differences; see the GCC
! manual).  Neither of them is a macro; the preprocessor does not know the
! name of the current function.  They tend to be useful in conjunction
! with `__FILE__' and `__LINE__', though.
  
! `__DATE__'
       This macro expands to a string constant that describes the date on
       which the preprocessor is being run.  The string constant contains
!      eleven characters and looks like `"Feb 12 1996"'.  If the day of
       the month is less than 10, it is padded with a space on the left.
  
       If GCC cannot determine the current date, it will emit a warning
!      message (once per compilation) and `__DATE__' will expand to
!      `"??? ?? ????"'.
  
! `__TIME__'
       This macro expands to a string constant that describes the time at
       which the preprocessor is being run.  The string constant contains
!      eight characters and looks like `"23:59:01"'.
  
       If GCC cannot determine the current time, it will emit a warning
!      message (once per compilation) and `__TIME__' will expand to
!      `"??:??:??"'.
  
! `__STDC__'
       In normal operation, this macro expands to the constant 1, to
       signify that this compiler conforms to ISO Standard C.  If GNU CPP
       is used with a compiler other than GCC, this is not necessarily
       true; however, the preprocessor always conforms to the standard
!      unless the `-traditional-cpp' option is used.
  
!      This macro is not defined if the `-traditional-cpp' option is used.
  
       On some hosts, the system compiler uses a different convention,
!      where `__STDC__' is normally 0, but is 1 if the user specifies
       strict conformance to the C Standard.  CPP follows the host
!      convention when processing system header files, but when
!      processing user files `__STDC__' is always 1.  This has been
!      reported to cause problems; for instance, some versions of Solaris
!      provide X Windows headers that expect `__STDC__' to be either
!      undefined or 1.  *Note Invocation::.
  
! `__STDC_VERSION__'
       This macro expands to the C Standard's version number, a long
!      integer constant of the form `YYYYMML' where YYYY and MM are the
       year and month of the Standard version.  This signifies which
       version of the C Standard the compiler conforms to.  Like
!      `__STDC__', this is not necessarily accurate for the entire
       implementation, unless GNU CPP is being used with GCC.
  
!      The value `199409L' signifies the 1989 C standard as amended in
!      1994, which is the current default; the value `199901L' signifies
!      the 1999 revision of the C standard.  Support for the 1999
!      revision is not yet complete.
  
!      This macro is not defined if the `-traditional-cpp' option is
!      used, nor when compiling C++ or Objective-C.
  
! `__STDC_HOSTED__'
       This macro is defined, with value 1, if the compiler's target is a
       "hosted environment".  A hosted environment has the complete
       facilities of the standard C library available.
  
! `__cplusplus'
       This macro is defined when the C++ compiler is in use.  You can use
!      `__cplusplus' to test whether a header is compiled by a C compiler
!      or a C++ compiler.  This macro is similar to `__STDC_VERSION__', in
       that it expands to a version number.  Depending on the language
!      standard selected, the value of the macro is `199711L' for the
!      1998 C++ standard, `201103L' for the 2011 C++ standard, `201402L'
!      for the 2014 C++ standard, or an unspecified value strictly larger
!      than `201402L' for the experimental languages enabled by
!      `-std=c++1z' and `-std=gnu++1z'.
  
! `__OBJC__'
       This macro is defined, with value 1, when the Objective-C compiler
!      is in use.  You can use `__OBJC__' to test whether a header is
       compiled by a C compiler or an Objective-C compiler.
  
! `__ASSEMBLER__'
       This macro is defined with value 1 when preprocessing assembly
       language.
  
- 
  
  File: cpp.info,  Node: Common Predefined Macros,  Next: System-specific Predefined Macros,  Prev: Standard Predefined Macros,  Up: Predefined Macros
  
--- 1647,1748 ----
                        "%d at %s, line %d.",
                length, __FILE__, __LINE__);
  
!    An '#include' directive changes the expansions of '__FILE__' and
! '__LINE__' to correspond to the included file.  At the end of that file,
! when processing resumes on the input file that contained the '#include'
! directive, the expansions of '__FILE__' and '__LINE__' revert to the
! values they had before the '#include' (but '__LINE__' is then
! incremented by one as processing moves to the line after the
! '#include').
  
!    A '#line' directive changes '__LINE__', and may change '__FILE__' as
  well.  *Note Line Control::.
  
!    C99 introduces '__func__', and GCC has provided '__FUNCTION__' for a
! long time.  Both of these are strings containing the name of the current
! function (there are slight semantic differences; see the GCC manual).
! Neither of them is a macro; the preprocessor does not know the name of
! the current function.  They tend to be useful in conjunction with
! '__FILE__' and '__LINE__', though.
  
! '__DATE__'
       This macro expands to a string constant that describes the date on
       which the preprocessor is being run.  The string constant contains
!      eleven characters and looks like '"Feb 12 1996"'.  If the day of
       the month is less than 10, it is padded with a space on the left.
  
       If GCC cannot determine the current date, it will emit a warning
!      message (once per compilation) and '__DATE__' will expand to
!      '"??? ?? ????"'.
  
! '__TIME__'
       This macro expands to a string constant that describes the time at
       which the preprocessor is being run.  The string constant contains
!      eight characters and looks like '"23:59:01"'.
  
       If GCC cannot determine the current time, it will emit a warning
!      message (once per compilation) and '__TIME__' will expand to
!      '"??:??:??"'.
  
! '__STDC__'
       In normal operation, this macro expands to the constant 1, to
       signify that this compiler conforms to ISO Standard C.  If GNU CPP
       is used with a compiler other than GCC, this is not necessarily
       true; however, the preprocessor always conforms to the standard
!      unless the '-traditional-cpp' option is used.
  
!      This macro is not defined if the '-traditional-cpp' option is used.
  
       On some hosts, the system compiler uses a different convention,
!      where '__STDC__' is normally 0, but is 1 if the user specifies
       strict conformance to the C Standard.  CPP follows the host
!      convention when processing system header files, but when processing
!      user files '__STDC__' is always 1.  This has been reported to cause
!      problems; for instance, some versions of Solaris provide X Windows
!      headers that expect '__STDC__' to be either undefined or 1.  *Note
!      Invocation::.
  
! '__STDC_VERSION__'
       This macro expands to the C Standard's version number, a long
!      integer constant of the form 'YYYYMML' where YYYY and MM are the
       year and month of the Standard version.  This signifies which
       version of the C Standard the compiler conforms to.  Like
!      '__STDC__', this is not necessarily accurate for the entire
       implementation, unless GNU CPP is being used with GCC.
  
!      The value '199409L' signifies the 1989 C standard as amended in
!      1994, which is the current default; the value '199901L' signifies
!      the 1999 revision of the C standard.  Support for the 1999 revision
!      is not yet complete.
  
!      This macro is not defined if the '-traditional-cpp' option is used,
!      nor when compiling C++ or Objective-C.
  
! '__STDC_HOSTED__'
       This macro is defined, with value 1, if the compiler's target is a
       "hosted environment".  A hosted environment has the complete
       facilities of the standard C library available.
  
! '__cplusplus'
       This macro is defined when the C++ compiler is in use.  You can use
!      '__cplusplus' to test whether a header is compiled by a C compiler
!      or a C++ compiler.  This macro is similar to '__STDC_VERSION__', in
       that it expands to a version number.  Depending on the language
!      standard selected, the value of the macro is '199711L' for the 1998
!      C++ standard, '201103L' for the 2011 C++ standard, '201402L' for
!      the 2014 C++ standard, or an unspecified value strictly larger than
!      '201402L' for the experimental languages enabled by '-std=c++1z'
!      and '-std=gnu++1z'.
  
! '__OBJC__'
       This macro is defined, with value 1, when the Objective-C compiler
!      is in use.  You can use '__OBJC__' to test whether a header is
       compiled by a C compiler or an Objective-C compiler.
  
! '__ASSEMBLER__'
       This macro is defined with value 1 when preprocessing assembly
       language.
  
  
  File: cpp.info,  Node: Common Predefined Macros,  Next: System-specific Predefined Macros,  Prev: Standard Predefined Macros,  Up: Predefined Macros
  
*************** with the same meanings regardless of the
*** 1761,1802 ****
  which you are using GNU C or GNU Fortran.  Their names all start with
  double underscores.
  
! `__COUNTER__'
       This macro expands to sequential integral values starting from 0.
!      In conjunction with the `##' operator, this provides a convenient
!      means to generate unique identifiers.  Care must be taken to
!      ensure that `__COUNTER__' is not expanded prior to inclusion of
       precompiled headers which use it.  Otherwise, the precompiled
       headers will not be used.
  
! `__GFORTRAN__'
       The GNU Fortran compiler defines this.
  
! `__GNUC__'
! `__GNUC_MINOR__'
! `__GNUC_PATCHLEVEL__'
       These macros are defined by all GNU compilers that use the C
       preprocessor: C, C++, Objective-C and Fortran.  Their values are
       the major version, minor version, and patch level of the compiler,
       as integer constants.  For example, GCC 3.2.1 will define
!      `__GNUC__' to 3, `__GNUC_MINOR__' to 2, and `__GNUC_PATCHLEVEL__'
!      to 1.  These macros are also defined if you invoke the
!      preprocessor directly.
  
!      `__GNUC_PATCHLEVEL__' is new to GCC 3.0; it is also present in the
       widely-used development snapshots leading up to 3.0 (which identify
       themselves as GCC 2.96 or 2.97, depending on which snapshot you
       have).
  
       If all you need to know is whether or not your program is being
       compiled by GCC, or a non-GCC compiler that claims to accept the
!      GNU C dialects, you can simply test `__GNUC__'.  If you need to
       write code which depends on a specific version, you must be more
!      careful.  Each time the minor version is increased, the patch
!      level is reset to zero; each time the major version is increased
!      (which happens rarely), the minor version and patch level are
!      reset.  If you wish to use the predefined macros directly in the
!      conditional, you will need to write it like this:
  
            /* Test for GCC > 3.2.0 */
            #if __GNUC__ > 3 || \
--- 1754,1795 ----
  which you are using GNU C or GNU Fortran.  Their names all start with
  double underscores.
  
! '__COUNTER__'
       This macro expands to sequential integral values starting from 0.
!      In conjunction with the '##' operator, this provides a convenient
!      means to generate unique identifiers.  Care must be taken to ensure
!      that '__COUNTER__' is not expanded prior to inclusion of
       precompiled headers which use it.  Otherwise, the precompiled
       headers will not be used.
  
! '__GFORTRAN__'
       The GNU Fortran compiler defines this.
  
! '__GNUC__'
! '__GNUC_MINOR__'
! '__GNUC_PATCHLEVEL__'
       These macros are defined by all GNU compilers that use the C
       preprocessor: C, C++, Objective-C and Fortran.  Their values are
       the major version, minor version, and patch level of the compiler,
       as integer constants.  For example, GCC 3.2.1 will define
!      '__GNUC__' to 3, '__GNUC_MINOR__' to 2, and '__GNUC_PATCHLEVEL__'
!      to 1.  These macros are also defined if you invoke the preprocessor
!      directly.
  
!      '__GNUC_PATCHLEVEL__' is new to GCC 3.0; it is also present in the
       widely-used development snapshots leading up to 3.0 (which identify
       themselves as GCC 2.96 or 2.97, depending on which snapshot you
       have).
  
       If all you need to know is whether or not your program is being
       compiled by GCC, or a non-GCC compiler that claims to accept the
!      GNU C dialects, you can simply test '__GNUC__'.  If you need to
       write code which depends on a specific version, you must be more
!      careful.  Each time the minor version is increased, the patch level
!      is reset to zero; each time the major version is increased (which
!      happens rarely), the minor version and patch level are reset.  If
!      you wish to use the predefined macros directly in the conditional,
!      you will need to write it like this:
  
            /* Test for GCC > 3.2.0 */
            #if __GNUC__ > 3 || \
*************** double underscores.
*** 1816,1863 ****
  
       Many people find this form easier to understand.
  
! `__GNUG__'
       The GNU C++ compiler defines this.  Testing it is equivalent to
!      testing `(__GNUC__ && __cplusplus)'.
  
! `__STRICT_ANSI__'
!      GCC defines this macro if and only if the `-ansi' switch, or a
!      `-std' switch specifying strict conformance to some version of ISO
!      C or ISO C++, was specified when GCC was invoked.  It is defined
!      to `1'.  This macro exists primarily to direct GNU libc's header
!      files to restrict their definitions to the minimal set found in
!      the 1989 C standard.
  
! `__BASE_FILE__'
       This macro expands to the name of the main input file, in the form
       of a C string constant.  This is the source file that was specified
       on the command line of the preprocessor or C compiler.
  
! `__INCLUDE_LEVEL__'
       This macro expands to a decimal integer constant that represents
       the depth of nesting in include files.  The value of this macro is
!      incremented on every `#include' directive and decremented at the
       end of every included file.  It starts out at 0, its value within
       the base file specified on the command line.
  
! `__ELF__'
       This macro is defined if the target uses the ELF object format.
  
! `__VERSION__'
!      This macro expands to a string constant which describes the
!      version of the compiler in use.  You should not rely on its
!      contents having any particular form, but it can be counted on to
!      contain at least the release number.
  
! `__OPTIMIZE__'
! `__OPTIMIZE_SIZE__'
! `__NO_INLINE__'
!      These macros describe the compilation mode.  `__OPTIMIZE__' is
!      defined in all optimizing compilations.  `__OPTIMIZE_SIZE__' is
       defined if the compiler is optimizing for size, not speed.
!      `__NO_INLINE__' is defined if no functions will be inlined into
       their callers (when not optimizing, or when inlining has been
!      specifically disabled by `-fno-inline').
  
       These macros cause certain GNU header files to provide optimized
       definitions, using macros or inline functions, of system library
--- 1809,1856 ----
  
       Many people find this form easier to understand.
  
! '__GNUG__'
       The GNU C++ compiler defines this.  Testing it is equivalent to
!      testing '(__GNUC__ && __cplusplus)'.
  
! '__STRICT_ANSI__'
!      GCC defines this macro if and only if the '-ansi' switch, or a
!      '-std' switch specifying strict conformance to some version of ISO
!      C or ISO C++, was specified when GCC was invoked.  It is defined to
!      '1'.  This macro exists primarily to direct GNU libc's header files
!      to restrict their definitions to the minimal set found in the 1989
!      C standard.
  
! '__BASE_FILE__'
       This macro expands to the name of the main input file, in the form
       of a C string constant.  This is the source file that was specified
       on the command line of the preprocessor or C compiler.
  
! '__INCLUDE_LEVEL__'
       This macro expands to a decimal integer constant that represents
       the depth of nesting in include files.  The value of this macro is
!      incremented on every '#include' directive and decremented at the
       end of every included file.  It starts out at 0, its value within
       the base file specified on the command line.
  
! '__ELF__'
       This macro is defined if the target uses the ELF object format.
  
! '__VERSION__'
!      This macro expands to a string constant which describes the version
!      of the compiler in use.  You should not rely on its contents having
!      any particular form, but it can be counted on to contain at least
!      the release number.
  
! '__OPTIMIZE__'
! '__OPTIMIZE_SIZE__'
! '__NO_INLINE__'
!      These macros describe the compilation mode.  '__OPTIMIZE__' is
!      defined in all optimizing compilations.  '__OPTIMIZE_SIZE__' is
       defined if the compiler is optimizing for size, not speed.
!      '__NO_INLINE__' is defined if no functions will be inlined into
       their callers (when not optimizing, or when inlining has been
!      specifically disabled by '-fno-inline').
  
       These macros cause certain GNU header files to provide optimized
       definitions, using macros or inline functions, of system library
*************** double underscores.
*** 1865,2080 ****
       make sure that programs will execute with the same effect whether
       or not they are defined.  If they are defined, their value is 1.
  
! `__GNUC_GNU_INLINE__'
!      GCC defines this macro if functions declared `inline' will be
       handled in GCC's traditional gnu90 mode.  Object files will contain
!      externally visible definitions of all functions declared `inline'
!      without `extern' or `static'.  They will not contain any
!      definitions of any functions declared `extern inline'.
  
! `__GNUC_STDC_INLINE__'
!      GCC defines this macro if functions declared `inline' will be
       handled according to the ISO C99 standard.  Object files will
       contain externally visible definitions of all functions declared
!      `extern inline'.  They will not contain definitions of any
!      functions declared `inline' without `extern'.
  
!      If this macro is defined, GCC supports the `gnu_inline' function
       attribute as a way to always get the gnu90 behavior.  Support for
!      this and `__GNUC_GNU_INLINE__' was added in GCC 4.1.3.  If neither
!      macro is defined, an older version of GCC is being used: `inline'
!      functions will be compiled in gnu90 mode, and the `gnu_inline'
       function attribute will not be recognized.
  
! `__CHAR_UNSIGNED__'
!      GCC defines this macro if and only if the data type `char' is
       unsigned on the target machine.  It exists to cause the standard
!      header file `limits.h' to work correctly.  You should not use this
       macro yourself; instead, refer to the standard macros defined in
!      `limits.h'.
  
! `__WCHAR_UNSIGNED__'
!      Like `__CHAR_UNSIGNED__', this macro is defined if and only if the
!      data type `wchar_t' is unsigned and the front-end is in C++ mode.
  
! `__REGISTER_PREFIX__'
       This macro expands to a single token (not a string constant) which
       is the prefix applied to CPU register names in assembly language
       for this target.  You can use it to write assembly that is usable
!      in multiple environments.  For example, in the `m68k-aout'
!      environment it expands to nothing, but in the `m68k-coff'
!      environment it expands to a single `%'.
  
! `__USER_LABEL_PREFIX__'
       This macro expands to a single token which is the prefix applied to
       user labels (symbols visible to C code) in assembly.  For example,
!      in the `m68k-aout' environment it expands to an `_', but in the
!      `m68k-coff' environment it expands to nothing.
  
       This macro will have the correct definition even if
!      `-f(no-)underscores' is in use, but it will not be correct if
       target-specific options that adjust this prefix are used (e.g. the
!      OSF/rose `-mno-underscores' option).
  
! `__SIZE_TYPE__'
! `__PTRDIFF_TYPE__'
! `__WCHAR_TYPE__'
! `__WINT_TYPE__'
! `__INTMAX_TYPE__'
! `__UINTMAX_TYPE__'
! `__SIG_ATOMIC_TYPE__'
! `__INT8_TYPE__'
! `__INT16_TYPE__'
! `__INT32_TYPE__'
! `__INT64_TYPE__'
! `__UINT8_TYPE__'
! `__UINT16_TYPE__'
! `__UINT32_TYPE__'
! `__UINT64_TYPE__'
! `__INT_LEAST8_TYPE__'
! `__INT_LEAST16_TYPE__'
! `__INT_LEAST32_TYPE__'
! `__INT_LEAST64_TYPE__'
! `__UINT_LEAST8_TYPE__'
! `__UINT_LEAST16_TYPE__'
! `__UINT_LEAST32_TYPE__'
! `__UINT_LEAST64_TYPE__'
! `__INT_FAST8_TYPE__'
! `__INT_FAST16_TYPE__'
! `__INT_FAST32_TYPE__'
! `__INT_FAST64_TYPE__'
! `__UINT_FAST8_TYPE__'
! `__UINT_FAST16_TYPE__'
! `__UINT_FAST32_TYPE__'
! `__UINT_FAST64_TYPE__'
! `__INTPTR_TYPE__'
! `__UINTPTR_TYPE__'
       These macros are defined to the correct underlying types for the
!      `size_t', `ptrdiff_t', `wchar_t', `wint_t', `intmax_t',
!      `uintmax_t', `sig_atomic_t', `int8_t', `int16_t', `int32_t',
!      `int64_t', `uint8_t', `uint16_t', `uint32_t', `uint64_t',
!      `int_least8_t', `int_least16_t', `int_least32_t', `int_least64_t',
!      `uint_least8_t', `uint_least16_t', `uint_least32_t',
!      `uint_least64_t', `int_fast8_t', `int_fast16_t', `int_fast32_t',
!      `int_fast64_t', `uint_fast8_t', `uint_fast16_t', `uint_fast32_t',
!      `uint_fast64_t', `intptr_t', and `uintptr_t' typedefs,
       respectively.  They exist to make the standard header files
!      `stddef.h', `stdint.h', and `wchar.h' work correctly.  You should
       not use these macros directly; instead, include the appropriate
       headers and use the typedefs.  Some of these macros may not be
!      defined on particular systems if GCC does not provide a `stdint.h'
       header on those systems.
  
! `__CHAR_BIT__'
       Defined to the number of bits used in the representation of the
!      `char' data type.  It exists to make the standard header given
       numerical limits work correctly.  You should not use this macro
       directly; instead, include the appropriate headers.
  
! `__SCHAR_MAX__'
! `__WCHAR_MAX__'
! `__SHRT_MAX__'
! `__INT_MAX__'
! `__LONG_MAX__'
! `__LONG_LONG_MAX__'
! `__WINT_MAX__'
! `__SIZE_MAX__'
! `__PTRDIFF_MAX__'
! `__INTMAX_MAX__'
! `__UINTMAX_MAX__'
! `__SIG_ATOMIC_MAX__'
! `__INT8_MAX__'
! `__INT16_MAX__'
! `__INT32_MAX__'
! `__INT64_MAX__'
! `__UINT8_MAX__'
! `__UINT16_MAX__'
! `__UINT32_MAX__'
! `__UINT64_MAX__'
! `__INT_LEAST8_MAX__'
! `__INT_LEAST16_MAX__'
! `__INT_LEAST32_MAX__'
! `__INT_LEAST64_MAX__'
! `__UINT_LEAST8_MAX__'
! `__UINT_LEAST16_MAX__'
! `__UINT_LEAST32_MAX__'
! `__UINT_LEAST64_MAX__'
! `__INT_FAST8_MAX__'
! `__INT_FAST16_MAX__'
! `__INT_FAST32_MAX__'
! `__INT_FAST64_MAX__'
! `__UINT_FAST8_MAX__'
! `__UINT_FAST16_MAX__'
! `__UINT_FAST32_MAX__'
! `__UINT_FAST64_MAX__'
! `__INTPTR_MAX__'
! `__UINTPTR_MAX__'
! `__WCHAR_MIN__'
! `__WINT_MIN__'
! `__SIG_ATOMIC_MIN__'
!      Defined to the maximum value of the `signed char', `wchar_t',
!      `signed short', `signed int', `signed long', `signed long long',
!      `wint_t', `size_t', `ptrdiff_t', `intmax_t', `uintmax_t',
!      `sig_atomic_t', `int8_t', `int16_t', `int32_t', `int64_t',
!      `uint8_t', `uint16_t', `uint32_t', `uint64_t', `int_least8_t',
!      `int_least16_t', `int_least32_t', `int_least64_t',
!      `uint_least8_t', `uint_least16_t', `uint_least32_t',
!      `uint_least64_t', `int_fast8_t', `int_fast16_t', `int_fast32_t',
!      `int_fast64_t', `uint_fast8_t', `uint_fast16_t', `uint_fast32_t',
!      `uint_fast64_t', `intptr_t', and `uintptr_t' types and to the
!      minimum value of the `wchar_t', `wint_t', and `sig_atomic_t' types
!      respectively.  They exist to make the standard header given
!      numerical limits work correctly.  You should not use these macros
!      directly; instead, include the appropriate headers.  Some of these
!      macros may not be defined on particular systems if GCC does not
!      provide a `stdint.h' header on those systems.
  
! `__INT8_C'
! `__INT16_C'
! `__INT32_C'
! `__INT64_C'
! `__UINT8_C'
! `__UINT16_C'
! `__UINT32_C'
! `__UINT64_C'
! `__INTMAX_C'
! `__UINTMAX_C'
!      Defined to implementations of the standard `stdint.h' macros with
!      the same names without the leading `__'.  They exist the make the
       implementation of that header work correctly.  You should not use
       these macros directly; instead, include the appropriate headers.
       Some of these macros may not be defined on particular systems if
!      GCC does not provide a `stdint.h' header on those systems.
  
! `__SIZEOF_INT__'
! `__SIZEOF_LONG__'
! `__SIZEOF_LONG_LONG__'
! `__SIZEOF_SHORT__'
! `__SIZEOF_POINTER__'
! `__SIZEOF_FLOAT__'
! `__SIZEOF_DOUBLE__'
! `__SIZEOF_LONG_DOUBLE__'
! `__SIZEOF_SIZE_T__'
! `__SIZEOF_WCHAR_T__'
! `__SIZEOF_WINT_T__'
! `__SIZEOF_PTRDIFF_T__'
!      Defined to the number of bytes of the C standard data types: `int',
!      `long', `long long', `short', `void *', `float', `double', `long
!      double', `size_t', `wchar_t', `wint_t' and `ptrdiff_t'.
  
! `__BYTE_ORDER__'
! `__ORDER_LITTLE_ENDIAN__'
! `__ORDER_BIG_ENDIAN__'
! `__ORDER_PDP_ENDIAN__'
!      `__BYTE_ORDER__' is defined to one of the values
!      `__ORDER_LITTLE_ENDIAN__', `__ORDER_BIG_ENDIAN__', or
!      `__ORDER_PDP_ENDIAN__' to reflect the layout of multi-byte and
!      multi-word quantities in memory.  If `__BYTE_ORDER__' is equal to
!      `__ORDER_LITTLE_ENDIAN__' or `__ORDER_BIG_ENDIAN__', then
       multi-byte and multi-word quantities are laid out identically: the
       byte (word) at the lowest address is the least significant or most
       significant byte (word) of the quantity, respectively.  If
!      `__BYTE_ORDER__' is equal to `__ORDER_PDP_ENDIAN__', then bytes in
       16-bit words are laid out in a little-endian fashion, whereas the
       16-bit subwords of a 32-bit quantity are laid out in big-endian
       fashion.
--- 1858,2073 ----
       make sure that programs will execute with the same effect whether
       or not they are defined.  If they are defined, their value is 1.
  
! '__GNUC_GNU_INLINE__'
!      GCC defines this macro if functions declared 'inline' will be
       handled in GCC's traditional gnu90 mode.  Object files will contain
!      externally visible definitions of all functions declared 'inline'
!      without 'extern' or 'static'.  They will not contain any
!      definitions of any functions declared 'extern inline'.
  
! '__GNUC_STDC_INLINE__'
!      GCC defines this macro if functions declared 'inline' will be
       handled according to the ISO C99 standard.  Object files will
       contain externally visible definitions of all functions declared
!      'extern inline'.  They will not contain definitions of any
!      functions declared 'inline' without 'extern'.
  
!      If this macro is defined, GCC supports the 'gnu_inline' function
       attribute as a way to always get the gnu90 behavior.  Support for
!      this and '__GNUC_GNU_INLINE__' was added in GCC 4.1.3.  If neither
!      macro is defined, an older version of GCC is being used: 'inline'
!      functions will be compiled in gnu90 mode, and the 'gnu_inline'
       function attribute will not be recognized.
  
! '__CHAR_UNSIGNED__'
!      GCC defines this macro if and only if the data type 'char' is
       unsigned on the target machine.  It exists to cause the standard
!      header file 'limits.h' to work correctly.  You should not use this
       macro yourself; instead, refer to the standard macros defined in
!      'limits.h'.
  
! '__WCHAR_UNSIGNED__'
!      Like '__CHAR_UNSIGNED__', this macro is defined if and only if the
!      data type 'wchar_t' is unsigned and the front-end is in C++ mode.
  
! '__REGISTER_PREFIX__'
       This macro expands to a single token (not a string constant) which
       is the prefix applied to CPU register names in assembly language
       for this target.  You can use it to write assembly that is usable
!      in multiple environments.  For example, in the 'm68k-aout'
!      environment it expands to nothing, but in the 'm68k-coff'
!      environment it expands to a single '%'.
  
! '__USER_LABEL_PREFIX__'
       This macro expands to a single token which is the prefix applied to
       user labels (symbols visible to C code) in assembly.  For example,
!      in the 'm68k-aout' environment it expands to an '_', but in the
!      'm68k-coff' environment it expands to nothing.
  
       This macro will have the correct definition even if
!      '-f(no-)underscores' is in use, but it will not be correct if
       target-specific options that adjust this prefix are used (e.g. the
!      OSF/rose '-mno-underscores' option).
  
! '__SIZE_TYPE__'
! '__PTRDIFF_TYPE__'
! '__WCHAR_TYPE__'
! '__WINT_TYPE__'
! '__INTMAX_TYPE__'
! '__UINTMAX_TYPE__'
! '__SIG_ATOMIC_TYPE__'
! '__INT8_TYPE__'
! '__INT16_TYPE__'
! '__INT32_TYPE__'
! '__INT64_TYPE__'
! '__UINT8_TYPE__'
! '__UINT16_TYPE__'
! '__UINT32_TYPE__'
! '__UINT64_TYPE__'
! '__INT_LEAST8_TYPE__'
! '__INT_LEAST16_TYPE__'
! '__INT_LEAST32_TYPE__'
! '__INT_LEAST64_TYPE__'
! '__UINT_LEAST8_TYPE__'
! '__UINT_LEAST16_TYPE__'
! '__UINT_LEAST32_TYPE__'
! '__UINT_LEAST64_TYPE__'
! '__INT_FAST8_TYPE__'
! '__INT_FAST16_TYPE__'
! '__INT_FAST32_TYPE__'
! '__INT_FAST64_TYPE__'
! '__UINT_FAST8_TYPE__'
! '__UINT_FAST16_TYPE__'
! '__UINT_FAST32_TYPE__'
! '__UINT_FAST64_TYPE__'
! '__INTPTR_TYPE__'
! '__UINTPTR_TYPE__'
       These macros are defined to the correct underlying types for the
!      'size_t', 'ptrdiff_t', 'wchar_t', 'wint_t', 'intmax_t',
!      'uintmax_t', 'sig_atomic_t', 'int8_t', 'int16_t', 'int32_t',
!      'int64_t', 'uint8_t', 'uint16_t', 'uint32_t', 'uint64_t',
!      'int_least8_t', 'int_least16_t', 'int_least32_t', 'int_least64_t',
!      'uint_least8_t', 'uint_least16_t', 'uint_least32_t',
!      'uint_least64_t', 'int_fast8_t', 'int_fast16_t', 'int_fast32_t',
!      'int_fast64_t', 'uint_fast8_t', 'uint_fast16_t', 'uint_fast32_t',
!      'uint_fast64_t', 'intptr_t', and 'uintptr_t' typedefs,
       respectively.  They exist to make the standard header files
!      'stddef.h', 'stdint.h', and 'wchar.h' work correctly.  You should
       not use these macros directly; instead, include the appropriate
       headers and use the typedefs.  Some of these macros may not be
!      defined on particular systems if GCC does not provide a 'stdint.h'
       header on those systems.
  
! '__CHAR_BIT__'
       Defined to the number of bits used in the representation of the
!      'char' data type.  It exists to make the standard header given
       numerical limits work correctly.  You should not use this macro
       directly; instead, include the appropriate headers.
  
! '__SCHAR_MAX__'
! '__WCHAR_MAX__'
! '__SHRT_MAX__'
! '__INT_MAX__'
! '__LONG_MAX__'
! '__LONG_LONG_MAX__'
! '__WINT_MAX__'
! '__SIZE_MAX__'
! '__PTRDIFF_MAX__'
! '__INTMAX_MAX__'
! '__UINTMAX_MAX__'
! '__SIG_ATOMIC_MAX__'
! '__INT8_MAX__'
! '__INT16_MAX__'
! '__INT32_MAX__'
! '__INT64_MAX__'
! '__UINT8_MAX__'
! '__UINT16_MAX__'
! '__UINT32_MAX__'
! '__UINT64_MAX__'
! '__INT_LEAST8_MAX__'
! '__INT_LEAST16_MAX__'
! '__INT_LEAST32_MAX__'
! '__INT_LEAST64_MAX__'
! '__UINT_LEAST8_MAX__'
! '__UINT_LEAST16_MAX__'
! '__UINT_LEAST32_MAX__'
! '__UINT_LEAST64_MAX__'
! '__INT_FAST8_MAX__'
! '__INT_FAST16_MAX__'
! '__INT_FAST32_MAX__'
! '__INT_FAST64_MAX__'
! '__UINT_FAST8_MAX__'
! '__UINT_FAST16_MAX__'
! '__UINT_FAST32_MAX__'
! '__UINT_FAST64_MAX__'
! '__INTPTR_MAX__'
! '__UINTPTR_MAX__'
! '__WCHAR_MIN__'
! '__WINT_MIN__'
! '__SIG_ATOMIC_MIN__'
!      Defined to the maximum value of the 'signed char', 'wchar_t',
!      'signed short', 'signed int', 'signed long', 'signed long long',
!      'wint_t', 'size_t', 'ptrdiff_t', 'intmax_t', 'uintmax_t',
!      'sig_atomic_t', 'int8_t', 'int16_t', 'int32_t', 'int64_t',
!      'uint8_t', 'uint16_t', 'uint32_t', 'uint64_t', 'int_least8_t',
!      'int_least16_t', 'int_least32_t', 'int_least64_t', 'uint_least8_t',
!      'uint_least16_t', 'uint_least32_t', 'uint_least64_t',
!      'int_fast8_t', 'int_fast16_t', 'int_fast32_t', 'int_fast64_t',
!      'uint_fast8_t', 'uint_fast16_t', 'uint_fast32_t', 'uint_fast64_t',
!      'intptr_t', and 'uintptr_t' types and to the minimum value of the
!      'wchar_t', 'wint_t', and 'sig_atomic_t' types respectively.  They
!      exist to make the standard header given numerical limits work
!      correctly.  You should not use these macros directly; instead,
!      include the appropriate headers.  Some of these macros may not be
!      defined on particular systems if GCC does not provide a 'stdint.h'
!      header on those systems.
  
! '__INT8_C'
! '__INT16_C'
! '__INT32_C'
! '__INT64_C'
! '__UINT8_C'
! '__UINT16_C'
! '__UINT32_C'
! '__UINT64_C'
! '__INTMAX_C'
! '__UINTMAX_C'
!      Defined to implementations of the standard 'stdint.h' macros with
!      the same names without the leading '__'.  They exist the make the
       implementation of that header work correctly.  You should not use
       these macros directly; instead, include the appropriate headers.
       Some of these macros may not be defined on particular systems if
!      GCC does not provide a 'stdint.h' header on those systems.
  
! '__SIZEOF_INT__'
! '__SIZEOF_LONG__'
! '__SIZEOF_LONG_LONG__'
! '__SIZEOF_SHORT__'
! '__SIZEOF_POINTER__'
! '__SIZEOF_FLOAT__'
! '__SIZEOF_DOUBLE__'
! '__SIZEOF_LONG_DOUBLE__'
! '__SIZEOF_SIZE_T__'
! '__SIZEOF_WCHAR_T__'
! '__SIZEOF_WINT_T__'
! '__SIZEOF_PTRDIFF_T__'
!      Defined to the number of bytes of the C standard data types: 'int',
!      'long', 'long long', 'short', 'void *', 'float', 'double', 'long
!      double', 'size_t', 'wchar_t', 'wint_t' and 'ptrdiff_t'.
  
! '__BYTE_ORDER__'
! '__ORDER_LITTLE_ENDIAN__'
! '__ORDER_BIG_ENDIAN__'
! '__ORDER_PDP_ENDIAN__'
!      '__BYTE_ORDER__' is defined to one of the values
!      '__ORDER_LITTLE_ENDIAN__', '__ORDER_BIG_ENDIAN__', or
!      '__ORDER_PDP_ENDIAN__' to reflect the layout of multi-byte and
!      multi-word quantities in memory.  If '__BYTE_ORDER__' is equal to
!      '__ORDER_LITTLE_ENDIAN__' or '__ORDER_BIG_ENDIAN__', then
       multi-byte and multi-word quantities are laid out identically: the
       byte (word) at the lowest address is the least significant or most
       significant byte (word) of the quantity, respectively.  If
!      '__BYTE_ORDER__' is equal to '__ORDER_PDP_ENDIAN__', then bytes in
       16-bit words are laid out in a little-endian fashion, whereas the
       16-bit subwords of a 32-bit quantity are laid out in big-endian
       fashion.
*************** double underscores.
*** 2084,2237 ****
            /* Test for a little-endian machine */
            #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  
! `__FLOAT_WORD_ORDER__'
!      `__FLOAT_WORD_ORDER__' is defined to one of the values
!      `__ORDER_LITTLE_ENDIAN__' or `__ORDER_BIG_ENDIAN__' to reflect the
       layout of the words of multi-word floating-point quantities.
  
! `__DEPRECATED'
       This macro is defined, with value 1, when compiling a C++ source
       file with warnings about deprecated constructs enabled.  These
       warnings are enabled by default, but can be disabled with
!      `-Wno-deprecated'.
  
! `__EXCEPTIONS'
       This macro is defined, with value 1, when compiling a C++ source
!      file with exceptions enabled.  If `-fno-exceptions' is used when
       compiling the file, then this macro is not defined.
  
! `__GXX_RTTI'
       This macro is defined, with value 1, when compiling a C++ source
!      file with runtime type identification enabled.  If `-fno-rtti' is
       used when compiling the file, then this macro is not defined.
  
! `__USING_SJLJ_EXCEPTIONS__'
       This macro is defined, with value 1, if the compiler uses the old
!      mechanism based on `setjmp' and `longjmp' for exception handling.
  
! `__GXX_EXPERIMENTAL_CXX0X__'
       This macro is defined when compiling a C++ source file with the
!      option `-std=c++0x' or `-std=gnu++0x'. It indicates that some
!      features likely to be included in C++0x are available. Note that
       these features are experimental, and may change or be removed in
       future versions of GCC.
  
! `__GXX_WEAK__'
       This macro is defined when compiling a C++ source file.  It has the
       value 1 if the compiler will use weak symbols, COMDAT sections, or
       other similar techniques to collapse symbols with "vague linkage"
       that are defined in multiple translation units.  If the compiler
!      will not collapse such symbols, this macro is defined with value
!      0.  In general, user code should not need to make use of this
!      macro; the purpose of this macro is to ease implementation of the
!      C++ runtime library provided with G++.
  
! `__NEXT_RUNTIME__'
       This macro is defined, with value 1, if (and only if) the NeXT
!      runtime (as in `-fnext-runtime') is in use for Objective-C.  If
!      the GNU runtime is used, this macro is not defined, so that you
!      can use this macro to determine which runtime (NeXT or GNU) is
!      being used.
  
! `__LP64__'
! `_LP64'
       These macros are defined, with value 1, if (and only if) the
!      compilation is for a target where `long int' and pointer both use
!      64-bits and `int' uses 32-bit.
  
! `__SSP__'
!      This macro is defined, with value 1, when `-fstack-protector' is in
       use.
  
! `__SSP_ALL__'
!      This macro is defined, with value 2, when `-fstack-protector-all'
       is in use.
  
! `__SSP_STRONG__'
       This macro is defined, with value 3, when
!      `-fstack-protector-strong' is in use.
  
! `__SSP_EXPLICIT__'
       This macro is defined, with value 4, when
!      `-fstack-protector-explicit' is in use.
  
! `__SANITIZE_ADDRESS__'
!      This macro is defined, with value 1, when `-fsanitize=address' or
!      `-fsanitize=kernel-address' are in use.
  
! `__TIMESTAMP__'
!      This macro expands to a string constant that describes the date
!      and time of the last modification of the current source file. The
!      string constant contains abbreviated day of the week, month, day
!      of the month, time in hh:mm:ss form, year and looks like
!      `"Sun Sep 16 01:03:52 1973"'.  If the day of the month is less
!      than 10, it is padded with a space on the left.
  
       If GCC cannot determine the current date, it will emit a warning
!      message (once per compilation) and `__TIMESTAMP__' will expand to
!      `"??? ??? ?? ??:??:?? ????"'.
  
! `__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1'
! `__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2'
! `__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4'
! `__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8'
! `__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16'
       These macros are defined when the target processor supports atomic
       compare and swap operations on operands 1, 2, 4, 8 or 16 bytes in
       length, respectively.
  
! `__GCC_HAVE_DWARF2_CFI_ASM'
       This macro is defined when the compiler is emitting DWARF CFI
       directives to the assembler.  When this is defined, it is possible
       to emit those same directives in inline assembly.
  
! `__FP_FAST_FMA'
! `__FP_FAST_FMAF'
! `__FP_FAST_FMAL'
       These macros are defined with value 1 if the backend supports the
!      `fma', `fmaf', and `fmal' builtin functions, so that the include
!      file `math.h' can define the macros `FP_FAST_FMA', `FP_FAST_FMAF',
!      and `FP_FAST_FMAL' for compatibility with the 1999 C standard.
  
! `__GCC_IEC_559'
       This macro is defined to indicate the intended level of support for
       IEEE 754 (IEC 60559) floating-point arithmetic.  It expands to a
!      nonnegative integer value.  If 0, it indicates that the
!      combination of the compiler configuration and the command-line
!      options is not intended to support IEEE 754 arithmetic for `float'
!      and `double' as defined in C99 and C11 Annex F (for example, that
!      the standard rounding modes and exceptions are not supported, or
!      that optimizations are enabled that conflict with IEEE 754
!      semantics).  If 1, it indicates that IEEE 754 arithmetic is
!      intended to be supported; this does not mean that all relevant
!      language features are supported by GCC.  If 2 or more, it
!      additionally indicates support for IEEE 754-2008 (in particular,
!      that the binary encodings for quiet and signaling NaNs are as
!      specified in IEEE 754-2008).
  
       This macro does not indicate the default state of command-line
       options that control optimizations that C99 and C11 permit to be
       controlled by standard pragmas, where those standards do not
       require a particular default state.  It does not indicate whether
       optimizations respect signaling NaN semantics (the macro for that
!      is `__SUPPORT_SNAN__').  It does not indicate support for decimal
       floating point or the IEEE 754 binary16 and binary128 types.
  
! `__GCC_IEC_559_COMPLEX'
       This macro is defined to indicate the intended level of support for
!      IEEE 754 (IEC 60559) floating-point arithmetic for complex
!      numbers, as defined in C99 and C11 Annex G.  It expands to a
!      nonnegative integer value.  If 0, it indicates that the
!      combination of the compiler configuration and the command-line
!      options is not intended to support Annex G requirements (for
!      example, because `-fcx-limited-range' was used).  If 1 or more, it
!      indicates that it is intended to support those requirements; this
!      does not mean that all relevant language features are supported by
!      GCC.
  
! `__NO_MATH_ERRNO__'
!      This macro is defined if `-fno-math-errno' is used, or enabled by
!      another option such as `-ffast-math' or by default.
  
  
  File: cpp.info,  Node: System-specific Predefined Macros,  Next: C++ Named Operators,  Prev: Common Predefined Macros,  Up: Predefined Macros
--- 2077,2227 ----
            /* Test for a little-endian machine */
            #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
  
! '__FLOAT_WORD_ORDER__'
!      '__FLOAT_WORD_ORDER__' is defined to one of the values
!      '__ORDER_LITTLE_ENDIAN__' or '__ORDER_BIG_ENDIAN__' to reflect the
       layout of the words of multi-word floating-point quantities.
  
! '__DEPRECATED'
       This macro is defined, with value 1, when compiling a C++ source
       file with warnings about deprecated constructs enabled.  These
       warnings are enabled by default, but can be disabled with
!      '-Wno-deprecated'.
  
! '__EXCEPTIONS'
       This macro is defined, with value 1, when compiling a C++ source
!      file with exceptions enabled.  If '-fno-exceptions' is used when
       compiling the file, then this macro is not defined.
  
! '__GXX_RTTI'
       This macro is defined, with value 1, when compiling a C++ source
!      file with runtime type identification enabled.  If '-fno-rtti' is
       used when compiling the file, then this macro is not defined.
  
! '__USING_SJLJ_EXCEPTIONS__'
       This macro is defined, with value 1, if the compiler uses the old
!      mechanism based on 'setjmp' and 'longjmp' for exception handling.
  
! '__GXX_EXPERIMENTAL_CXX0X__'
       This macro is defined when compiling a C++ source file with the
!      option '-std=c++0x' or '-std=gnu++0x'.  It indicates that some
!      features likely to be included in C++0x are available.  Note that
       these features are experimental, and may change or be removed in
       future versions of GCC.
  
! '__GXX_WEAK__'
       This macro is defined when compiling a C++ source file.  It has the
       value 1 if the compiler will use weak symbols, COMDAT sections, or
       other similar techniques to collapse symbols with "vague linkage"
       that are defined in multiple translation units.  If the compiler
!      will not collapse such symbols, this macro is defined with value 0.
!      In general, user code should not need to make use of this macro;
!      the purpose of this macro is to ease implementation of the C++
!      runtime library provided with G++.
  
! '__NEXT_RUNTIME__'
       This macro is defined, with value 1, if (and only if) the NeXT
!      runtime (as in '-fnext-runtime') is in use for Objective-C.  If the
!      GNU runtime is used, this macro is not defined, so that you can use
!      this macro to determine which runtime (NeXT or GNU) is being used.
  
! '__LP64__'
! '_LP64'
       These macros are defined, with value 1, if (and only if) the
!      compilation is for a target where 'long int' and pointer both use
!      64-bits and 'int' uses 32-bit.
  
! '__SSP__'
!      This macro is defined, with value 1, when '-fstack-protector' is in
       use.
  
! '__SSP_ALL__'
!      This macro is defined, with value 2, when '-fstack-protector-all'
       is in use.
  
! '__SSP_STRONG__'
       This macro is defined, with value 3, when
!      '-fstack-protector-strong' is in use.
  
! '__SSP_EXPLICIT__'
       This macro is defined, with value 4, when
!      '-fstack-protector-explicit' is in use.
  
! '__SANITIZE_ADDRESS__'
!      This macro is defined, with value 1, when '-fsanitize=address' or
!      '-fsanitize=kernel-address' are in use.
  
! '__TIMESTAMP__'
!      This macro expands to a string constant that describes the date and
!      time of the last modification of the current source file.  The
!      string constant contains abbreviated day of the week, month, day of
!      the month, time in hh:mm:ss form, year and looks like
!      '"Sun Sep 16 01:03:52 1973"'.  If the day of the month is less than
!      10, it is padded with a space on the left.
  
       If GCC cannot determine the current date, it will emit a warning
!      message (once per compilation) and '__TIMESTAMP__' will expand to
!      '"??? ??? ?? ??:??:?? ????"'.
  
! '__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1'
! '__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2'
! '__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4'
! '__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8'
! '__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16'
       These macros are defined when the target processor supports atomic
       compare and swap operations on operands 1, 2, 4, 8 or 16 bytes in
       length, respectively.
  
! '__GCC_HAVE_DWARF2_CFI_ASM'
       This macro is defined when the compiler is emitting DWARF CFI
       directives to the assembler.  When this is defined, it is possible
       to emit those same directives in inline assembly.
  
! '__FP_FAST_FMA'
! '__FP_FAST_FMAF'
! '__FP_FAST_FMAL'
       These macros are defined with value 1 if the backend supports the
!      'fma', 'fmaf', and 'fmal' builtin functions, so that the include
!      file 'math.h' can define the macros 'FP_FAST_FMA', 'FP_FAST_FMAF',
!      and 'FP_FAST_FMAL' for compatibility with the 1999 C standard.
  
! '__GCC_IEC_559'
       This macro is defined to indicate the intended level of support for
       IEEE 754 (IEC 60559) floating-point arithmetic.  It expands to a
!      nonnegative integer value.  If 0, it indicates that the combination
!      of the compiler configuration and the command-line options is not
!      intended to support IEEE 754 arithmetic for 'float' and 'double' as
!      defined in C99 and C11 Annex F (for example, that the standard
!      rounding modes and exceptions are not supported, or that
!      optimizations are enabled that conflict with IEEE 754 semantics).
!      If 1, it indicates that IEEE 754 arithmetic is intended to be
!      supported; this does not mean that all relevant language features
!      are supported by GCC. If 2 or more, it additionally indicates
!      support for IEEE 754-2008 (in particular, that the binary encodings
!      for quiet and signaling NaNs are as specified in IEEE 754-2008).
  
       This macro does not indicate the default state of command-line
       options that control optimizations that C99 and C11 permit to be
       controlled by standard pragmas, where those standards do not
       require a particular default state.  It does not indicate whether
       optimizations respect signaling NaN semantics (the macro for that
!      is '__SUPPORT_SNAN__').  It does not indicate support for decimal
       floating point or the IEEE 754 binary16 and binary128 types.
  
! '__GCC_IEC_559_COMPLEX'
       This macro is defined to indicate the intended level of support for
!      IEEE 754 (IEC 60559) floating-point arithmetic for complex numbers,
!      as defined in C99 and C11 Annex G. It expands to a nonnegative
!      integer value.  If 0, it indicates that the combination of the
!      compiler configuration and the command-line options is not intended
!      to support Annex G requirements (for example, because
!      '-fcx-limited-range' was used).  If 1 or more, it indicates that it
!      is intended to support those requirements; this does not mean that
!      all relevant language features are supported by GCC.
  
! '__NO_MATH_ERRNO__'
!      This macro is defined if '-fno-math-errno' is used, or enabled by
!      another option such as '-ffast-math' or by default.
  
  
  File: cpp.info,  Node: System-specific Predefined Macros,  Next: C++ Named Operators,  Prev: Common Predefined Macros,  Up: Predefined Macros
*************** File: cpp.info,  Node: System-specific P
*** 2242,2264 ****
  The C preprocessor normally predefines several macros that indicate what
  type of system and machine is in use.  They are obviously different on
  each target supported by GCC.  This manual, being for all systems and
! machines, cannot tell you what their names are, but you can use `cpp
  -dM' to see them all.  *Note Invocation::.  All system-specific
  predefined macros expand to a constant value, so you can test them with
! either `#ifdef' or `#if'.
  
     The C standard requires that all system-specific macros be part of
  the "reserved namespace".  All names which begin with two underscores,
  or an underscore and a capital letter, are reserved for the compiler and
  library to use as they wish.  However, historically system-specific
  macros have had names with no special prefix; for instance, it is common
! to find `unix' defined on Unix systems.  For all such macros, GCC
  provides a parallel macro with two underscores added at the beginning
! and the end.  If `unix' is defined, `__unix__' will be defined too.
! There will never be more than two underscores; the parallel of `_mips'
! is `__mips__'.
  
!    When the `-ansi' option, or any `-std' option that requests strict
  conformance, is given to the compiler, all the system-specific
  predefined macros outside the reserved namespace are suppressed.  The
  parallel macros, inside the reserved namespace, remain defined.
--- 2232,2254 ----
  The C preprocessor normally predefines several macros that indicate what
  type of system and machine is in use.  They are obviously different on
  each target supported by GCC.  This manual, being for all systems and
! machines, cannot tell you what their names are, but you can use 'cpp
  -dM' to see them all.  *Note Invocation::.  All system-specific
  predefined macros expand to a constant value, so you can test them with
! either '#ifdef' or '#if'.
  
     The C standard requires that all system-specific macros be part of
  the "reserved namespace".  All names which begin with two underscores,
  or an underscore and a capital letter, are reserved for the compiler and
  library to use as they wish.  However, historically system-specific
  macros have had names with no special prefix; for instance, it is common
! to find 'unix' defined on Unix systems.  For all such macros, GCC
  provides a parallel macro with two underscores added at the beginning
! and the end.  If 'unix' is defined, '__unix__' will be defined too.
! There will never be more than two underscores; the parallel of '_mips'
! is '__mips__'.
  
!    When the '-ansi' option, or any '-std' option that requests strict
  conformance, is given to the compiler, all the system-specific
  predefined macros outside the reserved namespace are suppressed.  The
  parallel macros, inside the reserved namespace, remain defined.
*************** encourage you to correct older code to u
*** 2269,2275 ****
  you find it.  We don't recommend you use the system-specific macros that
  are in the reserved namespace, either.  It is better in the long run to
  check specifically for features you need, using a tool such as
! `autoconf'.
  
  
  File: cpp.info,  Node: C++ Named Operators,  Prev: System-specific Predefined Macros,  Up: Predefined Macros
--- 2259,2265 ----
  you find it.  We don't recommend you use the system-specific macros that
  are in the reserved namespace, either.  It is better in the long run to
  check specifically for features you need, using a tool such as
! 'autoconf'.
  
  
  File: cpp.info,  Node: C++ Named Operators,  Prev: System-specific Predefined Macros,  Up: Predefined Macros
*************** File: cpp.info,  Node: C++ Named Operato
*** 2280,2304 ****
  In C++, there are eleven keywords which are simply alternate spellings
  of operators normally written with punctuation.  These keywords are
  treated as such even in the preprocessor.  They function as operators in
! `#if', and they cannot be defined as macros or poisoned.  In C, you can
  request that those keywords take their C++ meaning by including
! `iso646.h'.  That header defines each one as a normal object-like macro
  expanding to the appropriate punctuator.
  
     These are the named operators and their corresponding punctuators:
  
  Named Operator   Punctuator
! `and'            `&&'
! `and_eq'         `&='
! `bitand'         `&'
! `bitor'          `|'
! `compl'          `~'
! `not'            `!'
! `not_eq'         `!='
! `or'             `||'
! `or_eq'          `|='
! `xor'            `^'
! `xor_eq'         `^='
  
  
  File: cpp.info,  Node: Undefining and Redefining Macros,  Next: Directives Within Macro Arguments,  Prev: Predefined Macros,  Up: Macros
--- 2270,2294 ----
  In C++, there are eleven keywords which are simply alternate spellings
  of operators normally written with punctuation.  These keywords are
  treated as such even in the preprocessor.  They function as operators in
! '#if', and they cannot be defined as macros or poisoned.  In C, you can
  request that those keywords take their C++ meaning by including
! 'iso646.h'.  That header defines each one as a normal object-like macro
  expanding to the appropriate punctuator.
  
     These are the named operators and their corresponding punctuators:
  
  Named Operator   Punctuator
! 'and'            '&&'
! 'and_eq'         '&='
! 'bitand'         '&'
! 'bitor'          '|'
! 'compl'          '~'
! 'not'            '!'
! 'not_eq'         '!='
! 'or'             '||'
! 'or_eq'          '|='
! 'xor'            '^'
! 'xor_eq'         '^='
  
  
  File: cpp.info,  Node: Undefining and Redefining Macros,  Next: Directives Within Macro Arguments,  Prev: Predefined Macros,  Up: Macros
*************** File: cpp.info,  Node: Undefining and Re
*** 2306,2316 ****
  3.8 Undefining and Redefining Macros
  ====================================
  
! If a macro ceases to be useful, it may be "undefined" with the `#undef'
! directive.  `#undef' takes a single argument, the name of the macro to
  undefine.  You use the bare macro name, even if the macro is
! function-like.  It is an error if anything appears on the line after
! the macro name.  `#undef' has no effect if the name is not a macro.
  
       #define FOO 4
       x = FOO;        ==> x = 4;
--- 2296,2306 ----
  3.8 Undefining and Redefining Macros
  ====================================
  
! If a macro ceases to be useful, it may be "undefined" with the '#undef'
! directive.  '#undef' takes a single argument, the name of the macro to
  undefine.  You use the bare macro name, even if the macro is
! function-like.  It is an error if anything appears on the line after the
! macro name.  '#undef' has no effect if the name is not a macro.
  
       #define FOO 4
       x = FOO;        ==> x = 4;
*************** the macro name.  `#undef' has no effect
*** 2318,2335 ****
       x = FOO;        ==> x = FOO;
  
     Once a macro has been undefined, that identifier may be "redefined"
! as a macro by a subsequent `#define' directive.  The new definition
! need not have any resemblance to the old definition.
  
     However, if an identifier which is currently a macro is redefined,
  then the new definition must be "effectively the same" as the old one.
  Two macro definitions are effectively the same if:
     * Both are the same type of macro (object- or function-like).
- 
     * All the tokens of the replacement list are the same.
- 
     * If there are any parameters, they are the same.
- 
     * Whitespace appears in the same places in both.  It need not be
       exactly the same amount of whitespace, though.  Remember that
       comments count as whitespace.
--- 2308,2322 ----
       x = FOO;        ==> x = FOO;
  
     Once a macro has been undefined, that identifier may be "redefined"
! as a macro by a subsequent '#define' directive.  The new definition need
! not have any resemblance to the old definition.
  
     However, if an identifier which is currently a macro is redefined,
  then the new definition must be "effectively the same" as the old one.
  Two macro definitions are effectively the same if:
     * Both are the same type of macro (object- or function-like).
     * All the tokens of the replacement list are the same.
     * If there are any parameters, they are the same.
     * Whitespace appears in the same places in both.  It need not be
       exactly the same amount of whitespace, though.  Remember that
       comments count as whitespace.
*************** These definitions are effectively the sa
*** 2338,2344 ****
       #define FOUR (2 + 2)
       #define FOUR         (2    +    2)
       #define FOUR (2 /* two */ + 2)
!    but these are not:
       #define FOUR (2 + 2)
       #define FOUR ( 2+2 )
       #define FOUR (2 * 2)
--- 2325,2331 ----
       #define FOUR (2 + 2)
       #define FOUR         (2    +    2)
       #define FOUR (2 /* two */ + 2)
! but these are not:
       #define FOUR (2 + 2)
       #define FOUR ( 2+2 )
       #define FOUR (2 * 2)
*************** these cases is undefined.
*** 2364,2374 ****
     Versions of CPP prior to 3.2 would reject such constructs with an
  error message.  This was the only syntactic difference between normal
  functions and function-like macros, so it seemed attractive to remove
! this limitation, and people would often be surprised that they could
! not use macros in this way.  Moreover, sometimes people would use
  conditional compilation in the argument list to a normal library
! function like `printf', only to find that after a library upgrade
! `printf' had changed to be a function-like macro, and their code would
  no longer compile.  So from version 3.2 we changed CPP to successfully
  process arbitrary directives within macro arguments in exactly the same
  way as it would have processed the directive were the function-like
--- 2351,2361 ----
     Versions of CPP prior to 3.2 would reject such constructs with an
  error message.  This was the only syntactic difference between normal
  functions and function-like macros, so it seemed attractive to remove
! this limitation, and people would often be surprised that they could not
! use macros in this way.  Moreover, sometimes people would use
  conditional compilation in the argument list to a normal library
! function like 'printf', only to find that after a library upgrade
! 'printf' had changed to be a function-like macro, and their code would
  no longer compile.  So from version 3.2 we changed CPP to successfully
  process arbitrary directives within macro arguments in exactly the same
  way as it would have processed the directive were the function-like
*************** outside of it.  For example,
*** 2439,2447 ****
       strange(stderr) p, 35)
            ==> fprintf (stderr, "%s %d", p, 35)
  
!    The ability to piece together a macro call can be useful, but the
! use of unbalanced open parentheses in a macro body is just confusing,
! and should be avoided.
  
  
  File: cpp.info,  Node: Operator Precedence Problems,  Next: Swallowing the Semicolon,  Prev: Misnesting,  Up: Macro Pitfalls
--- 2426,2434 ----
       strange(stderr) p, 35)
            ==> fprintf (stderr, "%s %d", p, 35)
  
!    The ability to piece together a macro call can be useful, but the use
! of unbalanced open parentheses in a macro body is just confusing, and
! should be avoided.
  
  
  File: cpp.info,  Node: Operator Precedence Problems,  Next: Swallowing the Semicolon,  Prev: Misnesting,  Up: Macro Pitfalls
*************** way.
*** 2460,2467 ****
       #define ceil_div(x, y) (x + y - 1) / y
  
  whose purpose is to divide, rounding up.  (One use for this operation is
! to compute how many `int' objects are needed to hold a certain number
! of `char' objects.)  Then suppose it is used as follows:
  
       a = ceil_div (b & c, sizeof (int));
            ==> a = (b & c + sizeof (int) - 1) / sizeof (int);
--- 2447,2454 ----
       #define ceil_div(x, y) (x + y - 1) / y
  
  whose purpose is to divide, rounding up.  (One use for this operation is
! to compute how many 'int' objects are needed to hold a certain number of
! 'char' objects.)  Then suppose it is used as follows:
  
       a = ceil_div (b & c, sizeof (int));
            ==> a = (b & c + sizeof (int) - 1) / sizeof (int);
*************** Defining the macro as
*** 2481,2499 ****
  
  provides the desired result.
  
!    Unintended grouping can result in another way.  Consider `sizeof
  ceil_div(1, 2)'.  That has the appearance of a C expression that would
! compute the size of the type of `ceil_div (1, 2)', but in fact it means
  something very different.  Here is what it expands to:
  
       sizeof ((1) + (2) - 1) / (2)
  
  This would take the size of an integer and divide it by two.  The
! precedence rules have put the division outside the `sizeof' when it was
  intended to be inside.
  
     Parentheses around the entire macro definition prevent such problems.
! Here, then, is the recommended way to define `ceil_div':
  
       #define ceil_div(x, y) (((x) + (y) - 1) / (y))
  
--- 2468,2486 ----
  
  provides the desired result.
  
!    Unintended grouping can result in another way.  Consider 'sizeof
  ceil_div(1, 2)'.  That has the appearance of a C expression that would
! compute the size of the type of 'ceil_div (1, 2)', but in fact it means
  something very different.  Here is what it expands to:
  
       sizeof ((1) + (2) - 1) / (2)
  
  This would take the size of an integer and divide it by two.  The
! precedence rules have put the division outside the 'sizeof' when it was
  intended to be inside.
  
     Parentheses around the entire macro definition prevent such problems.
! Here, then, is the recommended way to define 'ceil_div':
  
       #define ceil_div(x, y) (((x) + (y) - 1) / (y))
  
*************** File: cpp.info,  Node: Swallowing the Se
*** 2505,2511 ****
  
  Often it is desirable to define a macro that expands into a compound
  statement.  Consider, for example, the following macro, that advances a
! pointer (the argument `p' says where to find it) across whitespace
  characters:
  
       #define SKIP_SPACES(p, limit)  \
--- 2492,2498 ----
  
  Often it is desirable to define a macro that expands into a compound
  statement.  Consider, for example, the following macro, that advances a
! pointer (the argument 'p' says where to find it) across whitespace
  characters:
  
       #define SKIP_SPACES(p, limit)  \
*************** Here backslash-newline is used to split
*** 2518,2531 ****
  be a single logical line, so that it resembles the way such code would
  be laid out if not part of a macro definition.
  
!    A call to this macro might be `SKIP_SPACES (p, lim)'.  Strictly
  speaking, the call expands to a compound statement, which is a complete
  statement with no need for a semicolon to end it.  However, since it
  looks like a function call, it minimizes confusion if you can use it
! like a function call, writing a semicolon afterward, as in `SKIP_SPACES
  (p, lim);'
  
!    This can cause trouble before `else' statements, because the
  semicolon is actually a null statement.  Suppose you write
  
       if (*p != 0)
--- 2505,2518 ----
  be a single logical line, so that it resembles the way such code would
  be laid out if not part of a macro definition.
  
!    A call to this macro might be 'SKIP_SPACES (p, lim)'.  Strictly
  speaking, the call expands to a compound statement, which is a complete
  statement with no need for a semicolon to end it.  However, since it
  looks like a function call, it minimizes confusion if you can use it
! like a function call, writing a semicolon afterward, as in 'SKIP_SPACES
  (p, lim);'
  
!    This can cause trouble before 'else' statements, because the
  semicolon is actually a null statement.  Suppose you write
  
       if (*p != 0)
*************** semicolon is actually a null statement.
*** 2533,2543 ****
       else ...
  
  The presence of two statements--the compound statement and a null
! statement--in between the `if' condition and the `else' makes invalid C
  code.
  
!    The definition of the macro `SKIP_SPACES' can be altered to solve
! this problem, using a `do ... while' statement.  Here is how:
  
       #define SKIP_SPACES(p, limit)     \
       do { char *lim = (limit);         \
--- 2520,2530 ----
       else ...
  
  The presence of two statements--the compound statement and a null
! statement--in between the 'if' condition and the 'else' makes invalid C
  code.
  
!    The definition of the macro 'SKIP_SPACES' can be altered to solve
! this problem, using a 'do ... while' statement.  Here is how:
  
       #define SKIP_SPACES(p, limit)     \
       do { char *lim = (limit);         \
*************** this problem, using a `do ... while' sta
*** 2546,2552 ****
                p--; break; }}}          \
       while (0)
  
!    Now `SKIP_SPACES (p, lim);' expands into
  
       do {...} while (0);
  
--- 2533,2539 ----
                p--; break; }}}          \
       while (0)
  
!    Now 'SKIP_SPACES (p, lim);' expands into
  
       do {...} while (0);
  
*************** File: cpp.info,  Node: Duplication of Si
*** 2559,2570 ****
  3.10.4 Duplication of Side Effects
  ----------------------------------
  
! Many C programs define a macro `min', for "minimum", like this:
  
       #define min(X, Y)  ((X) < (Y) ? (X) : (Y))
  
!    When you use this macro with an argument containing a side effect,
! as shown here,
  
       next = min (x + y, foo (z));
  
--- 2546,2557 ----
  3.10.4 Duplication of Side Effects
  ----------------------------------
  
! Many C programs define a macro 'min', for "minimum", like this:
  
       #define min(X, Y)  ((X) < (Y) ? (X) : (Y))
  
!    When you use this macro with an argument containing a side effect, as
! shown here,
  
       next = min (x + y, foo (z));
  
*************** it expands as follows:
*** 2572,2588 ****
  
       next = ((x + y) < (foo (z)) ? (x + y) : (foo (z)));
  
! where `x + y' has been substituted for `X' and `foo (z)' for `Y'.
  
!    The function `foo' is used only once in the statement as it appears
! in the program, but the expression `foo (z)' has been substituted twice
! into the macro expansion.  As a result, `foo' might be called two times
! when the statement is executed.  If it has side effects or if it takes
! a long time to compute, the results might not be what you intended.  We
! say that `min' is an "unsafe" macro.
  
!    The best solution to this problem is to define `min' in a way that
! computes the value of `foo (z)' only once.  The C language offers no
  standard way to do this, but it can be done with GNU extensions as
  follows:
  
--- 2559,2575 ----
  
       next = ((x + y) < (foo (z)) ? (x + y) : (foo (z)));
  
! where 'x + y' has been substituted for 'X' and 'foo (z)' for 'Y'.
  
!    The function 'foo' is used only once in the statement as it appears
! in the program, but the expression 'foo (z)' has been substituted twice
! into the macro expansion.  As a result, 'foo' might be called two times
! when the statement is executed.  If it has side effects or if it takes a
! long time to compute, the results might not be what you intended.  We
! say that 'min' is an "unsafe" macro.
  
!    The best solution to this problem is to define 'min' in a way that
! computes the value of 'foo (z)' only once.  The C language offers no
  standard way to do this, but it can be done with GNU extensions as
  follows:
  
*************** follows:
*** 2591,2597 ****
          typeof (Y) y_ = (Y);          \
          (x_ < y_) ? x_ : y_; })
  
!    The `({ ... })' notation produces a compound statement that acts as
  an expression.  Its value is the value of its last statement.  This
  permits us to define local variables and assign each argument to one.
  The local variables have underscores after their names to reduce the
--- 2578,2584 ----
          typeof (Y) y_ = (Y);          \
          (x_ < y_) ? x_ : y_; })
  
!    The '({ ... })' notation produces a compound statement that acts as
  an expression.  Its value is the value of its last statement.  This
  permits us to define local variables and assign each argument to one.
  The local variables have underscores after their names to reduce the
*************** risk of conflict with an identifier of w
*** 2599,2607 ****
  avoid this entirely).  Now each argument is evaluated exactly once.
  
     If you do not wish to use GNU C extensions, the only solution is to
! be careful when _using_ the macro `min'.  For example, you can
! calculate the value of `foo (z)', save it in a variable, and use that
! variable in `min':
  
       #define min(X, Y)  ((X) < (Y) ? (X) : (Y))
       ...
--- 2586,2594 ----
  avoid this entirely).  Now each argument is evaluated exactly once.
  
     If you do not wish to use GNU C extensions, the only solution is to
! be careful when _using_ the macro 'min'.  For example, you can calculate
! the value of 'foo (z)', save it in a variable, and use that variable in
! 'min':
  
       #define min(X, Y)  ((X) < (Y) ? (X) : (Y))
       ...
*************** variable in `min':
*** 2610,2616 ****
         next = min (x + y, tem);
       }
  
! (where we assume that `foo' returns type `int').
  
  
  File: cpp.info,  Node: Self-Referential Macros,  Next: Argument Prescan,  Prev: Duplication of Side Effects,  Up: Macro Pitfalls
--- 2597,2603 ----
         next = min (x + y, tem);
       }
  
! (where we assume that 'foo' returns type 'int').
  
  
  File: cpp.info,  Node: Self-Referential Macros,  Next: Argument Prescan,  Prev: Duplication of Side Effects,  Up: Macro Pitfalls
*************** preprocessor output unchanged.  Consider
*** 2627,2668 ****
  
       #define foo (4 + foo)
  
! where `foo' is also a variable in your program.
  
!    Following the ordinary rules, each reference to `foo' will expand
! into `(4 + foo)'; then this will be rescanned and will expand into `(4
! + (4 + foo))'; and so on until the computer runs out of memory.
  
     The self-reference rule cuts this process short after one step, at
! `(4 + foo)'.  Therefore, this macro definition has the possibly useful
! effect of causing the program to add 4 to the value of `foo' wherever
! `foo' is referred to.
  
     In most cases, it is a bad idea to take advantage of this feature.  A
! person reading the program who sees that `foo' is a variable will not
  expect that it is a macro as well.  The reader will come across the
! identifier `foo' in the program and think its value should be that of
! the variable `foo', whereas in fact the value is four greater.
  
     One common, useful use of self-reference is to create a macro which
  expands to itself.  If you write
  
       #define EPERM EPERM
  
! then the macro `EPERM' expands to `EPERM'.  Effectively, it is left
  alone by the preprocessor whenever it's used in running text.  You can
! tell that it's a macro with `#ifdef'.  You might do this if you want to
! define numeric constants with an `enum', but have `#ifdef' be true for
  each constant.
  
!    If a macro `x' expands to use a macro `y', and the expansion of `y'
! refers to the macro `x', that is an "indirect self-reference" of `x'.
! `x' is not expanded in this case either.  Thus, if we have
  
       #define x (4 + y)
       #define y (2 * x)
  
! then `x' and `y' expand as follows:
  
       x    ==> (4 + y)
            ==> (4 + (2 * x))
--- 2614,2655 ----
  
       #define foo (4 + foo)
  
! where 'foo' is also a variable in your program.
  
!    Following the ordinary rules, each reference to 'foo' will expand
! into '(4 + foo)'; then this will be rescanned and will expand into '(4 +
! (4 + foo))'; and so on until the computer runs out of memory.
  
     The self-reference rule cuts this process short after one step, at
! '(4 + foo)'.  Therefore, this macro definition has the possibly useful
! effect of causing the program to add 4 to the value of 'foo' wherever
! 'foo' is referred to.
  
     In most cases, it is a bad idea to take advantage of this feature.  A
! person reading the program who sees that 'foo' is a variable will not
  expect that it is a macro as well.  The reader will come across the
! identifier 'foo' in the program and think its value should be that of
! the variable 'foo', whereas in fact the value is four greater.
  
     One common, useful use of self-reference is to create a macro which
  expands to itself.  If you write
  
       #define EPERM EPERM
  
! then the macro 'EPERM' expands to 'EPERM'.  Effectively, it is left
  alone by the preprocessor whenever it's used in running text.  You can
! tell that it's a macro with '#ifdef'.  You might do this if you want to
! define numeric constants with an 'enum', but have '#ifdef' be true for
  each constant.
  
!    If a macro 'x' expands to use a macro 'y', and the expansion of 'y'
! refers to the macro 'x', that is an "indirect self-reference" of 'x'.
! 'x' is not expanded in this case either.  Thus, if we have
  
       #define x (4 + y)
       #define y (2 * x)
  
! then 'x' and 'y' expand as follows:
  
       x    ==> (4 + y)
            ==> (4 + (2 * x))
*************** same results.
*** 2695,2722 ****
  
     You might expect the double scan to change the results when a
  self-referential macro is used in an argument of another macro (*note
! Self-Referential Macros::): the self-referential macro would be
! expanded once in the first scan, and a second time in the second scan.
! However, this is not what happens.  The self-references that do not
! expand in the first scan are marked so that they will not expand in the
! second scan either.
  
     You might wonder, "Why mention the prescan, if it makes no
! difference?  And why not skip it and make the preprocessor faster?"
! The answer is that the prescan does make a difference in three special
  cases:
  
     * Nested calls to a macro.
  
       We say that "nested" calls to a macro occur when a macro's argument
!      contains a call to that very macro.  For example, if `f' is a macro
!      that expects one argument, `f (f (1))' is a nested pair of calls to
!      `f'.  The desired expansion is made by expanding `f (1)' and
!      substituting that into the definition of `f'.  The prescan causes
!      the expected result to happen.  Without the prescan, `f (1)' itself
!      would be substituted as an argument, and the inner use of `f' would
!      appear during the main scan as an indirect self-reference and
!      would not be expanded.
  
     * Macros that call other macros that stringify or concatenate.
  
--- 2682,2709 ----
  
     You might expect the double scan to change the results when a
  self-referential macro is used in an argument of another macro (*note
! Self-Referential Macros::): the self-referential macro would be expanded
! once in the first scan, and a second time in the second scan.  However,
! this is not what happens.  The self-references that do not expand in the
! first scan are marked so that they will not expand in the second scan
! either.
  
     You might wonder, "Why mention the prescan, if it makes no
! difference?  And why not skip it and make the preprocessor faster?"  The
! answer is that the prescan does make a difference in three special
  cases:
  
     * Nested calls to a macro.
  
       We say that "nested" calls to a macro occur when a macro's argument
!      contains a call to that very macro.  For example, if 'f' is a macro
!      that expects one argument, 'f (f (1))' is a nested pair of calls to
!      'f'.  The desired expansion is made by expanding 'f (1)' and
!      substituting that into the definition of 'f'.  The prescan causes
!      the expected result to happen.  Without the prescan, 'f (1)' itself
!      would be substituted as an argument, and the inner use of 'f' would
!      appear during the main scan as an indirect self-reference and would
!      not be expanded.
  
     * Macros that call other macros that stringify or concatenate.
  
*************** cases:
*** 2731,2738 ****
            #define TABLESIZE 1024
            #define BUFSIZE TABLESIZE
  
!      then `AFTERX(BUFSIZE)' expands to `X_BUFSIZE', and
!      `XAFTERX(BUFSIZE)' expands to `X_1024'.  (Not to `X_TABLESIZE'.
       Prescan always does a complete expansion.)
  
     * Macros used in arguments, whose expansions contain unshielded
--- 2718,2725 ----
            #define TABLESIZE 1024
            #define BUFSIZE TABLESIZE
  
!      then 'AFTERX(BUFSIZE)' expands to 'X_BUFSIZE', and
!      'XAFTERX(BUFSIZE)' expands to 'X_1024'.  (Not to 'X_TABLESIZE'.
       Prescan always does a complete expansion.)
  
     * Macros used in arguments, whose expansions contain unshielded
*************** cases:
*** 2745,2753 ****
            #define bar(x) lose(x)
            #define lose(x) (1 + (x))
  
!      We would like `bar(foo)' to turn into `(1 + (foo))', which would
!      then turn into `(1 + (a,b))'.  Instead, `bar(foo)' expands into
!      `lose(a,b)', and you get an error because `lose' requires a single
       argument.  In this case, the problem is easily solved by the same
       parentheses that ought to be used to prevent misnesting of
       arithmetic operations:
--- 2732,2740 ----
            #define bar(x) lose(x)
            #define lose(x) (1 + (x))
  
!      We would like 'bar(foo)' to turn into '(1 + (foo))', which would
!      then turn into '(1 + (a,b))'.  Instead, 'bar(foo)' expands into
!      'lose(a,b)', and you get an error because 'lose' requires a single
       argument.  In this case, the problem is easily solved by the same
       parentheses that ought to be used to prevent misnesting of
       arithmetic operations:
*************** cases:
*** 2756,2765 ****
       or
            #define bar(x) lose((x))
  
!      The extra pair of parentheses prevents the comma in `foo''s
       definition from being interpreted as an argument separator.
  
- 
  
  File: cpp.info,  Node: Newlines in Arguments,  Prev: Argument Prescan,  Up: Macro Pitfalls
  
--- 2743,2751 ----
       or
            #define bar(x) lose((x))
  
!      The extra pair of parentheses prevents the comma in 'foo''s
       definition from being interpreted as an argument separator.
  
  
  File: cpp.info,  Node: Newlines in Arguments,  Prev: Argument Prescan,  Up: Macro Pitfalls
  
*************** different to the line containing the arg
*** 2780,2786 ****
                          ignored (),
                          syntax error);
  
! The syntax error triggered by the tokens `syntax error' results in an
  error message citing line three--the line of ignore_second_arg-- even
  though the problematic code comes from line five.
  
--- 2766,2772 ----
                          ignored (),
                          syntax error);
  
! The syntax error triggered by the tokens 'syntax error' results in an
  error message citing line three--the line of ignore_second_arg-- even
  though the problematic code comes from line five.
  
*************** File: cpp.info,  Node: Conditionals,  Ne
*** 2792,2818 ****
  4 Conditionals
  **************
  
! A "conditional" is a directive that instructs the preprocessor to
! select whether or not to include a chunk of code in the final token
! stream passed to the compiler.  Preprocessor conditionals can test
! arithmetic expressions, or whether a name is defined as a macro, or both
! simultaneously using the special `defined' operator.
  
!    A conditional in the C preprocessor resembles in some ways an `if'
  statement in C, but it is important to understand the difference between
! them.  The condition in an `if' statement is tested during the
! execution of your program.  Its purpose is to allow your program to
! behave differently from run to run, depending on the data it is
! operating on.  The condition in a preprocessing conditional directive is
! tested when your program is compiled.  Its purpose is to allow different
! code to be included in the program depending on the situation at the
! time of compilation.
  
     However, the distinction is becoming less clear.  Modern compilers
! often do test `if' statements when a program is compiled, if their
  conditions are known not to vary at run time, and eliminate code which
  can never be executed.  If you can count on your compiler to do this,
! you may find that your program is more readable if you use `if'
  statements with constant conditions (perhaps determined by macros).  Of
  course, you can only use this to exclude code, not type definitions or
  other preprocessing directives, and you can only do it if the code
--- 2778,2804 ----
  4 Conditionals
  **************
  
! A "conditional" is a directive that instructs the preprocessor to select
! whether or not to include a chunk of code in the final token stream
! passed to the compiler.  Preprocessor conditionals can test arithmetic
! expressions, or whether a name is defined as a macro, or both
! simultaneously using the special 'defined' operator.
  
!    A conditional in the C preprocessor resembles in some ways an 'if'
  statement in C, but it is important to understand the difference between
! them.  The condition in an 'if' statement is tested during the execution
! of your program.  Its purpose is to allow your program to behave
! differently from run to run, depending on the data it is operating on.
! The condition in a preprocessing conditional directive is tested when
! your program is compiled.  Its purpose is to allow different code to be
! included in the program depending on the situation at the time of
! compilation.
  
     However, the distinction is becoming less clear.  Modern compilers
! often do test 'if' statements when a program is compiled, if their
  conditions are known not to vary at run time, and eliminate code which
  can never be executed.  If you can count on your compiler to do this,
! you may find that your program is more readable if you use 'if'
  statements with constant conditions (perhaps determined by macros).  Of
  course, you can only use this to exclude code, not type definitions or
  other preprocessing directives, and you can only do it if the code
*************** There are three general reasons to use a
*** 2840,2858 ****
       one operating system may be erroneous on another operating system;
       for example, it might refer to data types or constants that do not
       exist on the other system.  When this happens, it is not enough to
!      avoid executing the invalid code.  Its mere presence will cause
!      the compiler to reject the program.  With a preprocessing
!      conditional, the offending code can be effectively excised from
!      the program when it is not valid.
  
     * You may want to be able to compile the same source file into two
       different programs.  One version might make frequent time-consuming
       consistency checks on its intermediate data, or print the values of
       those data for debugging, and the other not.
  
!    * A conditional whose condition is always false is one way to
!      exclude code from the program but keep it as a sort of comment for
!      future reference.
  
     Simple programs that do not need system-specific logic or complex
  debugging hooks generally will not need to use preprocessing
--- 2826,2844 ----
       one operating system may be erroneous on another operating system;
       for example, it might refer to data types or constants that do not
       exist on the other system.  When this happens, it is not enough to
!      avoid executing the invalid code.  Its mere presence will cause the
!      compiler to reject the program.  With a preprocessing conditional,
!      the offending code can be effectively excised from the program when
!      it is not valid.
  
     * You may want to be able to compile the same source file into two
       different programs.  One version might make frequent time-consuming
       consistency checks on its intermediate data, or print the values of
       those data for debugging, and the other not.
  
!    * A conditional whose condition is always false is one way to exclude
!      code from the program but keep it as a sort of comment for future
!      reference.
  
     Simple programs that do not need system-specific logic or complex
  debugging hooks generally will not need to use preprocessing
*************** File: cpp.info,  Node: Conditional Synta
*** 2865,2871 ****
  ======================
  
  A conditional in the C preprocessor begins with a "conditional
! directive": `#if', `#ifdef' or `#ifndef'.
  
  * Menu:
  
--- 2851,2857 ----
  ======================
  
  A conditional in the C preprocessor begins with a "conditional
! directive": '#if', '#ifdef' or '#ifndef'.
  
  * Menu:
  
*************** included in the output of the preprocess
*** 2894,2905 ****
  defined.  We say that the conditional "succeeds" if MACRO is defined,
  "fails" if it is not.
  
!    The CONTROLLED TEXT inside of a conditional can include
! preprocessing directives.  They are executed only if the conditional
! succeeds.  You can nest conditional groups inside other conditional
! groups, but they must be completely nested.  In other words, `#endif'
! always matches the nearest `#ifdef' (or `#ifndef', or `#if').  Also,
! you cannot start a conditional group in one file and end it in another.
  
     Even if a conditional fails, the CONTROLLED TEXT inside it is still
  run through initial transformations and tokenization.  Therefore, it
--- 2880,2891 ----
  defined.  We say that the conditional "succeeds" if MACRO is defined,
  "fails" if it is not.
  
!    The CONTROLLED TEXT inside of a conditional can include preprocessing
! directives.  They are executed only if the conditional succeeds.  You
! can nest conditional groups inside other conditional groups, but they
! must be completely nested.  In other words, '#endif' always matches the
! nearest '#ifdef' (or '#ifndef', or '#if').  Also, you cannot start a
! conditional group in one file and end it in another.
  
     Even if a conditional fails, the CONTROLLED TEXT inside it is still
  run through initial transformations and tokenization.  Therefore, it
*************** must all be lexically valid C.  Normally
*** 2907,2924 ****
  that all comments and string literals inside a failing conditional group
  must still be properly ended.
  
!    The comment following the `#endif' is not required, but it is a good
  practice if there is a lot of CONTROLLED TEXT, because it helps people
! match the `#endif' to the corresponding `#ifdef'.  Older programs
! sometimes put MACRO directly after the `#endif' without enclosing it in
  a comment.  This is invalid code according to the C standard.  CPP
! accepts it with a warning.  It never affects which `#ifndef' the
! `#endif' matches.
  
!    Sometimes you wish to use some code if a macro is _not_ defined.
! You can do this by writing `#ifndef' instead of `#ifdef'.  One common
! use of `#ifndef' is to include code only the first time a header file
! is included.  *Note Once-Only Headers::.
  
     Macro definitions can vary between compilations for several reasons.
  Here are some samples.
--- 2893,2910 ----
  that all comments and string literals inside a failing conditional group
  must still be properly ended.
  
!    The comment following the '#endif' is not required, but it is a good
  practice if there is a lot of CONTROLLED TEXT, because it helps people
! match the '#endif' to the corresponding '#ifdef'.  Older programs
! sometimes put MACRO directly after the '#endif' without enclosing it in
  a comment.  This is invalid code according to the C standard.  CPP
! accepts it with a warning.  It never affects which '#ifndef' the
! '#endif' matches.
  
!    Sometimes you wish to use some code if a macro is _not_ defined.  You
! can do this by writing '#ifndef' instead of '#ifdef'.  One common use of
! '#ifndef' is to include code only the first time a header file is
! included.  *Note Once-Only Headers::.
  
     Macro definitions can vary between compilations for several reasons.
  Here are some samples.
*************** Here are some samples.
*** 2932,2952 ****
       conditionals to avoid using a system feature on a machine where it
       is not implemented.
  
!    * Macros can be defined or undefined with the `-D' and `-U'
!      command-line options when you compile the program.  You can
!      arrange to compile the same source file into two different
!      programs by choosing a macro name to specify which program you
!      want, writing conditionals to test whether or how this macro is
!      defined, and then controlling the state of the macro with
!      command-line options, perhaps set in the Makefile.  *Note
!      Invocation::.
  
     * Your program might have a special header file (often called
!      `config.h') that is adjusted when the program is compiled.  It can
!      define or not define macros depending on the features of the
!      system and the desired capabilities of the program.  The
!      adjustment can be automated by a tool such as `autoconf', or done
!      by hand.
  
  
  File: cpp.info,  Node: If,  Next: Defined,  Prev: Ifdef,  Up: Conditional Syntax
--- 2918,2936 ----
       conditionals to avoid using a system feature on a machine where it
       is not implemented.
  
!    * Macros can be defined or undefined with the '-D' and '-U'
!      command-line options when you compile the program.  You can arrange
!      to compile the same source file into two different programs by
!      choosing a macro name to specify which program you want, writing
!      conditionals to test whether or how this macro is defined, and then
!      controlling the state of the macro with command-line options,
!      perhaps set in the Makefile.  *Note Invocation::.
  
     * Your program might have a special header file (often called
!      'config.h') that is adjusted when the program is compiled.  It can
!      define or not define macros depending on the features of the system
!      and the desired capabilities of the program.  The adjustment can be
!      automated by a tool such as 'autoconf', or done by hand.
  
  
  File: cpp.info,  Node: If,  Next: Defined,  Prev: Ifdef,  Up: Conditional Syntax
*************** File: cpp.info,  Node: If,  Next: Define
*** 2954,2960 ****
  4.2.2 If
  --------
  
! The `#if' directive allows you to test the value of an arithmetic
  expression, rather than the mere existence of one macro.  Its syntax is
  
       #if EXPRESSION
--- 2938,2944 ----
  4.2.2 If
  --------
  
! The '#if' directive allows you to test the value of an arithmetic
  expression, rather than the mere existence of one macro.  Its syntax is
  
       #if EXPRESSION
*************** restrictions.  It may contain
*** 2973,3001 ****
  
     * Arithmetic operators for addition, subtraction, multiplication,
       division, bitwise operations, shifts, comparisons, and logical
!      operations (`&&' and `||').  The latter two obey the usual
       short-circuiting rules of standard C.
  
     * Macros.  All macros in the expression are expanded before actual
       computation of the expression's value begins.
  
!    * Uses of the `defined' operator, which lets you check whether macros
!      are defined in the middle of an `#if'.
  
     * Identifiers that are not macros, which are all considered to be the
!      number zero.  This allows you to write `#if MACRO' instead of
!      `#ifdef MACRO', if you know that MACRO, when defined, will always
       have a nonzero value.  Function-like macros used without their
       function call parentheses are also treated as zero.
  
!      In some contexts this shortcut is undesirable.  The `-Wundef'
       option causes GCC to warn whenever it encounters an identifier
!      which is not a macro in an `#if'.
  
     The preprocessor does not know anything about types in the language.
! Therefore, `sizeof' operators are not recognized in `#if', and neither
! are `enum' constants.  They will be taken as identifiers which are not
! macros, and replaced by zero.  In the case of `sizeof', this is likely
  to cause the expression to be invalid.
  
     The preprocessor calculates the value of EXPRESSION.  It carries out
--- 2957,2985 ----
  
     * Arithmetic operators for addition, subtraction, multiplication,
       division, bitwise operations, shifts, comparisons, and logical
!      operations ('&&' and '||').  The latter two obey the usual
       short-circuiting rules of standard C.
  
     * Macros.  All macros in the expression are expanded before actual
       computation of the expression's value begins.
  
!    * Uses of the 'defined' operator, which lets you check whether macros
!      are defined in the middle of an '#if'.
  
     * Identifiers that are not macros, which are all considered to be the
!      number zero.  This allows you to write '#if MACRO' instead of
!      '#ifdef MACRO', if you know that MACRO, when defined, will always
       have a nonzero value.  Function-like macros used without their
       function call parentheses are also treated as zero.
  
!      In some contexts this shortcut is undesirable.  The '-Wundef'
       option causes GCC to warn whenever it encounters an identifier
!      which is not a macro in an '#if'.
  
     The preprocessor does not know anything about types in the language.
! Therefore, 'sizeof' operators are not recognized in '#if', and neither
! are 'enum' constants.  They will be taken as identifiers which are not
! macros, and replaced by zero.  In the case of 'sizeof', this is likely
  to cause the expression to be invalid.
  
     The preprocessor calculates the value of EXPRESSION.  It carries out
*************** all calculations in the widest integer t
*** 3003,3009 ****
  most machines supported by GCC this is 64 bits.  This is not the same
  rule as the compiler uses to calculate the value of a constant
  expression, and may give different results in some cases.  If the value
! comes out to be nonzero, the `#if' succeeds and the CONTROLLED TEXT is
  included; otherwise it is skipped.
  
  
--- 2987,2993 ----
  most machines supported by GCC this is 64 bits.  This is not the same
  rule as the compiler uses to calculate the value of a constant
  expression, and may give different results in some cases.  If the value
! comes out to be nonzero, the '#if' succeeds and the CONTROLLED TEXT is
  included; otherwise it is skipped.
  
  
*************** File: cpp.info,  Node: Defined,  Next: E
*** 3012,3045 ****
  4.2.3 Defined
  -------------
  
! The special operator `defined' is used in `#if' and `#elif' expressions
! to test whether a certain name is defined as a macro.  `defined NAME'
! and `defined (NAME)' are both expressions whose value is 1 if NAME is
! defined as a macro at the current point in the program, and 0
! otherwise.  Thus,  `#if defined MACRO' is precisely equivalent to
! `#ifdef MACRO'.
  
!    `defined' is useful when you wish to test more than one macro for
  existence at once.  For example,
  
       #if defined (__vax__) || defined (__ns16000__)
  
! would succeed if either of the names `__vax__' or `__ns16000__' is
  defined as a macro.
  
     Conditionals written like this:
  
       #if defined BUFSIZE && BUFSIZE >= 1024
  
! can generally be simplified to just `#if BUFSIZE >= 1024', since if
! `BUFSIZE' is not defined, it will be interpreted as having the value
  zero.
  
!    If the `defined' operator appears as a result of a macro expansion,
  the C standard says the behavior is undefined.  GNU cpp treats it as a
! genuine `defined' operator and evaluates it normally.  It will warn
  wherever your code uses this feature if you use the command-line option
! `-pedantic', since other compilers may handle it differently.
  
  
  File: cpp.info,  Node: Else,  Next: Elif,  Prev: Defined,  Up: Conditional Syntax
--- 2996,3028 ----
  4.2.3 Defined
  -------------
  
! The special operator 'defined' is used in '#if' and '#elif' expressions
! to test whether a certain name is defined as a macro.  'defined NAME'
! and 'defined (NAME)' are both expressions whose value is 1 if NAME is
! defined as a macro at the current point in the program, and 0 otherwise.
! Thus, '#if defined MACRO' is precisely equivalent to '#ifdef MACRO'.
  
!    'defined' is useful when you wish to test more than one macro for
  existence at once.  For example,
  
       #if defined (__vax__) || defined (__ns16000__)
  
! would succeed if either of the names '__vax__' or '__ns16000__' is
  defined as a macro.
  
     Conditionals written like this:
  
       #if defined BUFSIZE && BUFSIZE >= 1024
  
! can generally be simplified to just '#if BUFSIZE >= 1024', since if
! 'BUFSIZE' is not defined, it will be interpreted as having the value
  zero.
  
!    If the 'defined' operator appears as a result of a macro expansion,
  the C standard says the behavior is undefined.  GNU cpp treats it as a
! genuine 'defined' operator and evaluates it normally.  It will warn
  wherever your code uses this feature if you use the command-line option
! '-pedantic', since other compilers may handle it differently.
  
  
  File: cpp.info,  Node: Else,  Next: Elif,  Prev: Defined,  Up: Conditional Syntax
*************** File: cpp.info,  Node: Else,  Next: Elif
*** 3047,3053 ****
  4.2.4 Else
  ----------
  
! The `#else' directive can be added to a conditional to provide
  alternative text to be used if the condition fails.  This is what it
  looks like:
  
--- 3030,3036 ----
  4.2.4 Else
  ----------
  
! The '#else' directive can be added to a conditional to provide
  alternative text to be used if the condition fails.  This is what it
  looks like:
  
*************** looks like:
*** 3060,3066 ****
  If EXPRESSION is nonzero, the TEXT-IF-TRUE is included and the
  TEXT-IF-FALSE is skipped.  If EXPRESSION is zero, the opposite happens.
  
!    You can use `#else' with `#ifdef' and `#ifndef', too.
  
  
  File: cpp.info,  Node: Elif,  Prev: Else,  Up: Conditional Syntax
--- 3043,3049 ----
  If EXPRESSION is nonzero, the TEXT-IF-TRUE is included and the
  TEXT-IF-FALSE is skipped.  If EXPRESSION is zero, the opposite happens.
  
!    You can use '#else' with '#ifdef' and '#ifndef', too.
  
  
  File: cpp.info,  Node: Elif,  Prev: Else,  Up: Conditional Syntax
*************** two possible alternatives.  For example,
*** 3081,3088 ****
       #endif /* X != 2 */
       #endif /* X != 1 */
  
!    Another conditional directive, `#elif', allows this to be
! abbreviated as follows:
  
       #if X == 1
       ...
--- 3064,3071 ----
       #endif /* X != 2 */
       #endif /* X != 1 */
  
!    Another conditional directive, '#elif', allows this to be abbreviated
! as follows:
  
       #if X == 1
       ...
*************** abbreviated as follows:
*** 3092,3111 ****
       ...
       #endif /* X != 2 and X != 1*/
  
!    `#elif' stands for "else if".  Like `#else', it goes in the middle
! of a conditional group and subdivides it; it does not require a
! matching `#endif' of its own.  Like `#if', the `#elif' directive
! includes an expression to be tested.  The text following the `#elif' is
! processed only if the original `#if'-condition failed and the `#elif'
! condition succeeds.
  
!    More than one `#elif' can go in the same conditional group.  Then
! the text after each `#elif' is processed only if the `#elif' condition
! succeeds after the original `#if' and all previous `#elif' directives
  within it have failed.
  
!    `#else' is allowed after any number of `#elif' directives, but
! `#elif' may not follow `#else'.
  
  
  File: cpp.info,  Node: Deleted Code,  Prev: Conditional Syntax,  Up: Conditionals
--- 3075,3094 ----
       ...
       #endif /* X != 2 and X != 1*/
  
!    '#elif' stands for "else if".  Like '#else', it goes in the middle of
! a conditional group and subdivides it; it does not require a matching
! '#endif' of its own.  Like '#if', the '#elif' directive includes an
! expression to be tested.  The text following the '#elif' is processed
! only if the original '#if'-condition failed and the '#elif' condition
! succeeds.
  
!    More than one '#elif' can go in the same conditional group.  Then the
! text after each '#elif' is processed only if the '#elif' condition
! succeeds after the original '#if' and all previous '#elif' directives
  within it have failed.
  
!    '#else' is allowed after any number of '#elif' directives, but
! '#elif' may not follow '#else'.
  
  
  File: cpp.info,  Node: Deleted Code,  Prev: Conditional Syntax,  Up: Conditionals
*************** code will end the commenting-out.  The p
*** 3120,3139 ****
  syntax errors.
  
     One way to avoid this problem is to use an always-false conditional
! instead.  For instance, put `#if 0' before the deleted code and
! `#endif' after it.  This works even if the code being turned off
! contains conditionals, but they must be entire conditionals (balanced
! `#if' and `#endif').
  
!    Some people use `#ifdef notdef' instead.  This is risky, because
! `notdef' might be accidentally defined as a macro, and then the
! conditional would succeed.  `#if 0' can be counted on to fail.
  
!    Do not use `#if 0' for comments which are not C code.  Use a real
! comment, instead.  The interior of `#if 0' must consist of complete
  tokens; in particular, single-quote characters must balance.  Comments
  often contain unbalanced single-quote characters (known in English as
! apostrophes).  These confuse `#if 0'.  They don't confuse `/*'.
  
  
  File: cpp.info,  Node: Diagnostics,  Next: Line Control,  Prev: Conditionals,  Up: Top
--- 3103,3122 ----
  syntax errors.
  
     One way to avoid this problem is to use an always-false conditional
! instead.  For instance, put '#if 0' before the deleted code and '#endif'
! after it.  This works even if the code being turned off contains
! conditionals, but they must be entire conditionals (balanced '#if' and
! '#endif').
  
!    Some people use '#ifdef notdef' instead.  This is risky, because
! 'notdef' might be accidentally defined as a macro, and then the
! conditional would succeed.  '#if 0' can be counted on to fail.
  
!    Do not use '#if 0' for comments which are not C code.  Use a real
! comment, instead.  The interior of '#if 0' must consist of complete
  tokens; in particular, single-quote characters must balance.  Comments
  often contain unbalanced single-quote characters (known in English as
! apostrophes).  These confuse '#if 0'.  They don't confuse '/*'.
  
  
  File: cpp.info,  Node: Diagnostics,  Next: Line Control,  Prev: Conditionals,  Up: Top
*************** File: cpp.info,  Node: Diagnostics,  Nex
*** 3141,3151 ****
  5 Diagnostics
  *************
  
! The directive `#error' causes the preprocessor to report a fatal error.
! The tokens forming the rest of the line following `#error' are used as
  the error message.
  
!    You would use `#error' inside of a conditional that detects a
  combination of parameters which you know the program does not properly
  support.  For example, if you know that the program will not run
  properly on a VAX, you might write
--- 3124,3134 ----
  5 Diagnostics
  *************
  
! The directive '#error' causes the preprocessor to report a fatal error.
! The tokens forming the rest of the line following '#error' are used as
  the error message.
  
!    You would use '#error' inside of a conditional that detects a
  combination of parameters which you know the program does not properly
  support.  For example, if you know that the program will not run
  properly on a VAX, you might write
*************** properly on a VAX, you might write
*** 3156,3179 ****
  
     If you have several configuration parameters that must be set up by
  the installation in a consistent way, you can use conditionals to detect
! an inconsistency and report it with `#error'.  For example,
  
       #if !defined(FOO) && defined(BAR)
       #error "BAR requires FOO."
       #endif
  
!    The directive `#warning' is like `#error', but causes the
  preprocessor to issue a warning and continue preprocessing.  The tokens
! following `#warning' are used as the warning message.
  
!    You might use `#warning' in obsolete header files, with a message
  directing the user to the header file which should be used instead.
  
!    Neither `#error' nor `#warning' macro-expands its argument.
! Internal whitespace sequences are each replaced with a single space.
! The line must consist of complete tokens.  It is wisest to make the
! argument of these directives be a single string constant; this avoids
! problems with apostrophes and the like.
  
  
  File: cpp.info,  Node: Line Control,  Next: Pragmas,  Prev: Diagnostics,  Up: Top
--- 3139,3162 ----
  
     If you have several configuration parameters that must be set up by
  the installation in a consistent way, you can use conditionals to detect
! an inconsistency and report it with '#error'.  For example,
  
       #if !defined(FOO) && defined(BAR)
       #error "BAR requires FOO."
       #endif
  
!    The directive '#warning' is like '#error', but causes the
  preprocessor to issue a warning and continue preprocessing.  The tokens
! following '#warning' are used as the warning message.
  
!    You might use '#warning' in obsolete header files, with a message
  directing the user to the header file which should be used instead.
  
!    Neither '#error' nor '#warning' macro-expands its argument.  Internal
! whitespace sequences are each replaced with a single space.  The line
! must consist of complete tokens.  It is wisest to make the argument of
! these directives be a single string constant; this avoids problems with
! apostrophes and the like.
  
  
  File: cpp.info,  Node: Line Control,  Next: Pragmas,  Prev: Diagnostics,  Up: Top
*************** reported as having appeared on the line
*** 3188,3246 ****
  outermost macro was used.  We intend to be more accurate in the future.
  
     If you write a program which generates source code, such as the
! `bison' parser generator, you may want to adjust the preprocessor's
  notion of the current file name and line number by hand.  Parts of the
! output from `bison' are generated from scratch, other parts come from a
! standard parser file.  The rest are copied verbatim from `bison''s
! input.  You would like compiler error messages and symbolic debuggers
! to be able to refer to `bison''s input file.
  
!    `bison' or any such program can arrange this by writing `#line'
! directives into the output file.  `#line' is a directive that specifies
  the original line number and source file name for subsequent input in
! the current preprocessor input file.  `#line' has three variants:
  
! `#line LINENUM'
       LINENUM is a non-negative decimal integer constant.  It specifies
       the line number which should be reported for the following line of
       input.  Subsequent lines are counted from LINENUM.
  
! `#line LINENUM FILENAME'
!      LINENUM is the same as for the first form, and has the same
!      effect.  In addition, FILENAME is a string constant.  The
!      following line and all subsequent lines are reported to come from
!      the file it specifies, until something else happens to change that.
!      FILENAME is interpreted according to the normal rules for a string
!      constant: backslash escapes are interpreted.  This is different
!      from `#include'.
  
!      Previous versions of CPP did not interpret escapes in `#line'; we
       have changed it because the standard requires they be interpreted,
       and most other compilers do.
  
! `#line ANYTHING ELSE'
       ANYTHING ELSE is checked for macro calls, which are expanded.  The
       result should match one of the above two forms.
  
!    `#line' directives alter the results of the `__FILE__' and
! `__LINE__' predefined macros from that point on.  *Note Standard
! Predefined Macros::.  They do not have any effect on `#include''s idea
! of the directory containing the current file.  This is a change from
! GCC 2.95.  Previously, a file reading
  
-      #line 1 "../src/gram.y"
       #include "gram.h"
  
!    would search for `gram.h' in `../src', then the `-I' chain; the
! directory containing the physical source file would not be searched.
! In GCC 3.0 and later, the `#include' is not affected by the presence of
! a `#line' referring to a different directory.
  
     We made this change because the old behavior caused problems when
  generated source files were transported between machines.  For instance,
  it is common practice to ship generated parsers with a source release,
  so that people building the distribution do not need to have yacc or
! Bison installed.  These files frequently have `#line' directives
  referring to the directory tree of the system where the distribution was
  created.  If GCC tries to search for headers in those directories, the
  build is likely to fail.
--- 3171,3228 ----
  outermost macro was used.  We intend to be more accurate in the future.
  
     If you write a program which generates source code, such as the
! 'bison' parser generator, you may want to adjust the preprocessor's
  notion of the current file name and line number by hand.  Parts of the
! output from 'bison' are generated from scratch, other parts come from a
! standard parser file.  The rest are copied verbatim from 'bison''s
! input.  You would like compiler error messages and symbolic debuggers to
! be able to refer to 'bison''s input file.
  
!    'bison' or any such program can arrange this by writing '#line'
! directives into the output file.  '#line' is a directive that specifies
  the original line number and source file name for subsequent input in
! the current preprocessor input file.  '#line' has three variants:
  
! '#line LINENUM'
       LINENUM is a non-negative decimal integer constant.  It specifies
       the line number which should be reported for the following line of
       input.  Subsequent lines are counted from LINENUM.
  
! '#line LINENUM FILENAME'
!      LINENUM is the same as for the first form, and has the same effect.
!      In addition, FILENAME is a string constant.  The following line and
!      all subsequent lines are reported to come from the file it
!      specifies, until something else happens to change that.  FILENAME
!      is interpreted according to the normal rules for a string constant:
!      backslash escapes are interpreted.  This is different from
!      '#include'.
  
!      Previous versions of CPP did not interpret escapes in '#line'; we
       have changed it because the standard requires they be interpreted,
       and most other compilers do.
  
! '#line ANYTHING ELSE'
       ANYTHING ELSE is checked for macro calls, which are expanded.  The
       result should match one of the above two forms.
  
!    '#line' directives alter the results of the '__FILE__' and '__LINE__'
! predefined macros from that point on.  *Note Standard Predefined
! Macros::.  They do not have any effect on '#include''s idea of the
! directory containing the current file.  This is a change from GCC 2.95.
! Previously, a file reading
  
       #include "gram.h"
  
!    would search for 'gram.h' in '../src', then the '-I' chain; the
! directory containing the physical source file would not be searched.  In
! GCC 3.0 and later, the '#include' is not affected by the presence of a
! '#line' referring to a different directory.
  
     We made this change because the old behavior caused problems when
  generated source files were transported between machines.  For instance,
  it is common practice to ship generated parsers with a source release,
  so that people building the distribution do not need to have yacc or
! Bison installed.  These files frequently have '#line' directives
  referring to the directory tree of the system where the distribution was
  created.  If GCC tries to search for headers in those directories, the
  build is likely to fail.
*************** build is likely to fail.
*** 3249,3255 ****
  in the same directory as its source and it attempts to include a header
  which would be visible searching from the directory containing the
  source file.  However, this problem is easily solved with an additional
! `-I' switch on the command line.  The failures caused by the old
  semantics could sometimes be corrected only by editing the generated
  files, which is difficult and error-prone.
  
--- 3231,3237 ----
  in the same directory as its source and it attempts to include a header
  which would be visible searching from the directory containing the
  source file.  However, this problem is easily solved with an additional
! '-I' switch on the command line.  The failures caused by the old
  semantics could sometimes be corrected only by editing the generated
  files, which is difficult and error-prone.
  
*************** File: cpp.info,  Node: Pragmas,  Next: O
*** 3259,3306 ****
  7 Pragmas
  *********
  
! The `#pragma' directive is the method specified by the C standard for
  providing additional information to the compiler, beyond what is
  conveyed in the language itself.  Three forms of this directive
! (commonly known as "pragmas") are specified by the 1999 C standard.  A
! C compiler is free to attach any meaning it likes to other pragmas.
  
     GCC has historically preferred to use extensions to the syntax of the
! language, such as `__attribute__', for this purpose.  However, GCC does
  define a few pragmas of its own.  These mostly have effects on the
  entire translation unit or source file.
  
     In GCC version 3, all GNU-defined, supported pragmas have been given
! a `GCC' prefix.  This is in line with the `STDC' prefix on all pragmas
  defined by C99.  For backward compatibility, pragmas which were
! recognized by previous versions are still recognized without the `GCC'
! prefix, but that usage is deprecated.  Some older pragmas are
! deprecated in their entirety.  They are not recognized with the `GCC'
! prefix.  *Note Obsolete Features::.
  
!    C99 introduces the `_Pragma' operator.  This feature addresses a
! major problem with `#pragma': being a directive, it cannot be produced
! as the result of macro expansion.  `_Pragma' is an operator, much like
! `sizeof' or `defined', and can be embedded in a macro.
  
!    Its syntax is `_Pragma (STRING-LITERAL)', where STRING-LITERAL can
! be either a normal or wide-character string literal.  It is
! destringized, by replacing all `\\' with a single `\' and all `\"' with
! a `"'.  The result is then processed as if it had appeared as the right
! hand side of a `#pragma' directive.  For example,
  
       _Pragma ("GCC dependency \"parse.y\"")
  
! has the same effect as `#pragma GCC dependency "parse.y"'.  The same
  effect could be achieved using macros, for example
  
       #define DO_PRAGMA(x) _Pragma (#x)
       DO_PRAGMA (GCC dependency "parse.y")
  
!    The standard is unclear on where a `_Pragma' operator can appear.
  The preprocessor does not accept it within a preprocessing conditional
! directive like `#if'.  To be safe, you are probably best keeping it out
! of directives other than `#define', and putting it on a line of its own.
  
     This manual documents the pragmas which are meaningful to the
  preprocessor itself.  Other pragmas are meaningful to the C or C++
--- 3241,3288 ----
  7 Pragmas
  *********
  
! The '#pragma' directive is the method specified by the C standard for
  providing additional information to the compiler, beyond what is
  conveyed in the language itself.  Three forms of this directive
! (commonly known as "pragmas") are specified by the 1999 C standard.  A C
! compiler is free to attach any meaning it likes to other pragmas.
  
     GCC has historically preferred to use extensions to the syntax of the
! language, such as '__attribute__', for this purpose.  However, GCC does
  define a few pragmas of its own.  These mostly have effects on the
  entire translation unit or source file.
  
     In GCC version 3, all GNU-defined, supported pragmas have been given
! a 'GCC' prefix.  This is in line with the 'STDC' prefix on all pragmas
  defined by C99.  For backward compatibility, pragmas which were
! recognized by previous versions are still recognized without the 'GCC'
! prefix, but that usage is deprecated.  Some older pragmas are deprecated
! in their entirety.  They are not recognized with the 'GCC' prefix.
! *Note Obsolete Features::.
  
!    C99 introduces the '_Pragma' operator.  This feature addresses a
! major problem with '#pragma': being a directive, it cannot be produced
! as the result of macro expansion.  '_Pragma' is an operator, much like
! 'sizeof' or 'defined', and can be embedded in a macro.
  
!    Its syntax is '_Pragma (STRING-LITERAL)', where STRING-LITERAL can be
! either a normal or wide-character string literal.  It is destringized,
! by replacing all '\\' with a single '\' and all '\"' with a '"'.  The
! result is then processed as if it had appeared as the right hand side of
! a '#pragma' directive.  For example,
  
       _Pragma ("GCC dependency \"parse.y\"")
  
! has the same effect as '#pragma GCC dependency "parse.y"'.  The same
  effect could be achieved using macros, for example
  
       #define DO_PRAGMA(x) _Pragma (#x)
       DO_PRAGMA (GCC dependency "parse.y")
  
!    The standard is unclear on where a '_Pragma' operator can appear.
  The preprocessor does not accept it within a preprocessing conditional
! directive like '#if'.  To be safe, you are probably best keeping it out
! of directives other than '#define', and putting it on a line of its own.
  
     This manual documents the pragmas which are meaningful to the
  preprocessor itself.  Other pragmas are meaningful to the C or C++
*************** compilers.  They are documented in the G
*** 3308,3315 ****
  
     GCC plugins may provide their own pragmas.
  
! `#pragma GCC dependency'
!      `#pragma GCC dependency' allows you to check the relative dates of
       the current file and another file.  If the other file is more
       recent than the current file, a warning is issued.  This is useful
       if the current file is derived from the other file, and should be
--- 3290,3297 ----
  
     GCC plugins may provide their own pragmas.
  
! '#pragma GCC dependency'
!      '#pragma GCC dependency' allows you to check the relative dates of
       the current file and another file.  If the other file is more
       recent than the current file, a warning is issued.  This is useful
       if the current file is derived from the other file, and should be
*************** compilers.  They are documented in the G
*** 3320,3330 ****
            #pragma GCC dependency "parse.y"
            #pragma GCC dependency "/usr/include/time.h" rerun fixincludes
  
! `#pragma GCC poison'
       Sometimes, there is an identifier that you want to remove
       completely from your program, and make sure that it never creeps
       back in.  To enforce this, you can "poison" the identifier with
!      this pragma.  `#pragma GCC poison' is followed by a list of
       identifiers to poison.  If any of those identifiers appears
       anywhere in the source after the directive, it is a hard error.
       For example,
--- 3302,3312 ----
            #pragma GCC dependency "parse.y"
            #pragma GCC dependency "/usr/include/time.h" rerun fixincludes
  
! '#pragma GCC poison'
       Sometimes, there is an identifier that you want to remove
       completely from your program, and make sure that it never creeps
       back in.  To enforce this, you can "poison" the identifier with
!      this pragma.  '#pragma GCC poison' is followed by a list of
       identifiers to poison.  If any of those identifiers appears
       anywhere in the source after the directive, it is a hard error.
       For example,
*************** compilers.  They are documented in the G
*** 3335,3343 ****
       will produce an error.
  
       If a poisoned identifier appears as part of the expansion of a
!      macro which was defined before the identifier was poisoned, it
!      will _not_ cause an error.  This lets you poison an identifier
!      without worrying about system headers defining macros that use it.
  
       For example,
  
--- 3317,3325 ----
       will produce an error.
  
       If a poisoned identifier appears as part of the expansion of a
!      macro which was defined before the identifier was poisoned, it will
!      _not_ cause an error.  This lets you poison an identifier without
!      worrying about system headers defining macros that use it.
  
       For example,
  
*************** compilers.  They are documented in the G
*** 3347,3366 ****
  
       will not produce an error.
  
! `#pragma GCC system_header'
       This pragma takes no arguments.  It causes the rest of the code in
       the current file to be treated as if it came from a system header.
       *Note System Headers::.
  
! `#pragma GCC warning'
! `#pragma GCC error'
!      `#pragma GCC warning "message"' causes the preprocessor to issue a
!      warning diagnostic with the text `message'.  The message contained
!      in the pragma must be a single string literal.  Similarly,
!      `#pragma GCC error "message"' issues an error message.  Unlike the
!      `#warning' and `#error' directives, these pragmas can be embedded
!      in preprocessor macros using `_Pragma'.
! 
  
  
  File: cpp.info,  Node: Other Directives,  Next: Preprocessor Output,  Prev: Pragmas,  Up: Top
--- 3329,3347 ----
  
       will not produce an error.
  
! '#pragma GCC system_header'
       This pragma takes no arguments.  It causes the rest of the code in
       the current file to be treated as if it came from a system header.
       *Note System Headers::.
  
! '#pragma GCC warning'
! '#pragma GCC error'
!      '#pragma GCC warning "message"' causes the preprocessor to issue a
!      warning diagnostic with the text 'message'.  The message contained
!      in the pragma must be a single string literal.  Similarly, '#pragma
!      GCC error "message"' issues an error message.  Unlike the
!      '#warning' and '#error' directives, these pragmas can be embedded
!      in preprocessor macros using '_Pragma'.
  
  
  File: cpp.info,  Node: Other Directives,  Next: Preprocessor Output,  Prev: Pragmas,  Up: Top
*************** File: cpp.info,  Node: Other Directives,
*** 3368,3388 ****
  8 Other Directives
  ******************
  
! The `#ident' directive takes one argument, a string constant.  On some
  systems, that string constant is copied into a special segment of the
! object file.  On other systems, the directive is ignored.  The `#sccs'
! directive is a synonym for `#ident'.
  
     These directives are not part of the C standard, but they are not
  official GNU extensions either.  What historical information we have
  been able to find, suggests they originated with System V.
  
!    The "null directive" consists of a `#' followed by a newline, with
  only whitespace (including comments) in between.  A null directive is
  understood as a preprocessing directive but has no effect on the
  preprocessor output.  The primary significance of the existence of the
! null directive is that an input line consisting of just a `#' will
! produce no output, rather than a line of output containing just a `#'.
  Supposedly some old C programs contain such lines.
  
  
--- 3349,3369 ----
  8 Other Directives
  ******************
  
! The '#ident' directive takes one argument, a string constant.  On some
  systems, that string constant is copied into a special segment of the
! object file.  On other systems, the directive is ignored.  The '#sccs'
! directive is a synonym for '#ident'.
  
     These directives are not part of the C standard, but they are not
  official GNU extensions either.  What historical information we have
  been able to find, suggests they originated with System V.
  
!    The "null directive" consists of a '#' followed by a newline, with
  only whitespace (including comments) in between.  A null directive is
  understood as a preprocessing directive but has no effect on the
  preprocessor output.  The primary significance of the existence of the
! null directive is that an input line consisting of just a '#' will
! produce no output, rather than a line of output containing just a '#'.
  Supposedly some old C programs contain such lines.
  
  
*************** that the following line originated in fi
*** 3424,3462 ****
  FILENAME will never contain any non-printing characters; they are
  replaced with octal escape sequences.
  
!    After the file name comes zero or more flags, which are `1', `2',
! `3', or `4'.  If there are multiple flags, spaces separate them.  Here
  is what the flags mean:
  
! `1'
       This indicates the start of a new file.
! 
! `2'
       This indicates returning to a file (after having included another
       file).
! 
! `3'
       This indicates that the following text comes from a system header
       file, so certain warnings should be suppressed.
! 
! `4'
       This indicates that the following text should be treated as being
!      wrapped in an implicit `extern "C"' block.
  
     As an extension, the preprocessor accepts linemarkers in
  non-assembler input files.  They are treated like the corresponding
! `#line' directive, (*note Line Control::), except that trailing flags
  are permitted, and are interpreted with the meanings described above.
  If multiple flags are given, they must be in ascending order.
  
     Some directives may be duplicated in the output of the preprocessor.
! These are `#ident' (always), `#pragma' (only if the preprocessor does
! not handle the pragma itself), and `#define' and `#undef' (with certain
! debugging options).  If this happens, the `#' of the directive will
  always be in the first column, and there will be no space between the
! `#' and the directive name.  If macro expansion happens to generate
  tokens which might be mistaken for a duplicated directive, a space will
! be inserted between the `#' and the directive name.
  
  
  File: cpp.info,  Node: Traditional Mode,  Next: Implementation Details,  Prev: Preprocessor Output,  Up: Top
--- 3405,3440 ----
  FILENAME will never contain any non-printing characters; they are
  replaced with octal escape sequences.
  
!    After the file name comes zero or more flags, which are '1', '2',
! '3', or '4'.  If there are multiple flags, spaces separate them.  Here
  is what the flags mean:
  
! '1'
       This indicates the start of a new file.
! '2'
       This indicates returning to a file (after having included another
       file).
! '3'
       This indicates that the following text comes from a system header
       file, so certain warnings should be suppressed.
! '4'
       This indicates that the following text should be treated as being
!      wrapped in an implicit 'extern "C"' block.
  
     As an extension, the preprocessor accepts linemarkers in
  non-assembler input files.  They are treated like the corresponding
! '#line' directive, (*note Line Control::), except that trailing flags
  are permitted, and are interpreted with the meanings described above.
  If multiple flags are given, they must be in ascending order.
  
     Some directives may be duplicated in the output of the preprocessor.
! These are '#ident' (always), '#pragma' (only if the preprocessor does
! not handle the pragma itself), and '#define' and '#undef' (with certain
! debugging options).  If this happens, the '#' of the directive will
  always be in the first column, and there will be no space between the
! '#' and the directive name.  If macro expansion happens to generate
  tokens which might be mistaken for a duplicated directive, a space will
! be inserted between the '#' and the directive name.
  
  
  File: cpp.info,  Node: Traditional Mode,  Next: Implementation Details,  Prev: Preprocessor Output,  Up: Top
*************** File: cpp.info,  Node: Traditional Mode,
*** 3466,3472 ****
  
  Traditional (pre-standard) C preprocessing is rather different from the
  preprocessing specified by the standard.  When GCC is given the
! `-traditional-cpp' option, it attempts to emulate a traditional
  preprocessor.
  
     GCC versions 3.2 and later only support traditional mode semantics in
--- 3444,3450 ----
  
  Traditional (pre-standard) C preprocessing is rather different from the
  preprocessing specified by the standard.  When GCC is given the
! '-traditional-cpp' option, it attempts to emulate a traditional
  preprocessor.
  
     GCC versions 3.2 and later only support traditional mode semantics in
*************** simply treated as a stream of text with
*** 3499,3529 ****
  
     This implementation does not treat trigraphs (*note trigraphs::)
  specially since they were an invention of the standards committee.  It
! handles arbitrarily-positioned escaped newlines properly and splices
! the lines as you would expect; many traditional preprocessors did not
! do this.
  
     The form of horizontal whitespace in the input file is preserved in
  the output.  In particular, hard tabs remain hard tabs.  This can be
  useful if, for example, you are preprocessing a Makefile.
  
     Traditional CPP only recognizes C-style block comments, and treats
! the `/*' sequence as introducing a comment only if it lies outside
  quoted text.  Quoted text is introduced by the usual single and double
! quotes, and also by an initial `<' in a `#include' directive.
  
     Traditionally, comments are completely removed and are not replaced
! with a space.  Since a traditional compiler does its own tokenization
! of the output of the preprocessor, this means that comments can
! effectively be used as token paste operators.  However, comments behave
! like separators for text handled by the preprocessor itself, since it
! doesn't re-lex its input.  For example, in
  
       #if foo/**/bar
  
! `foo' and `bar' are distinct identifiers and expanded separately if
! they happen to be macros.  In other words, this directive is equivalent
! to
  
       #if foo bar
  
--- 3477,3506 ----
  
     This implementation does not treat trigraphs (*note trigraphs::)
  specially since they were an invention of the standards committee.  It
! handles arbitrarily-positioned escaped newlines properly and splices the
! lines as you would expect; many traditional preprocessors did not do
! this.
  
     The form of horizontal whitespace in the input file is preserved in
  the output.  In particular, hard tabs remain hard tabs.  This can be
  useful if, for example, you are preprocessing a Makefile.
  
     Traditional CPP only recognizes C-style block comments, and treats
! the '/*' sequence as introducing a comment only if it lies outside
  quoted text.  Quoted text is introduced by the usual single and double
! quotes, and also by an initial '<' in a '#include' directive.
  
     Traditionally, comments are completely removed and are not replaced
! with a space.  Since a traditional compiler does its own tokenization of
! the output of the preprocessor, this means that comments can effectively
! be used as token paste operators.  However, comments behave like
! separators for text handled by the preprocessor itself, since it doesn't
! re-lex its input.  For example, in
  
       #if foo/**/bar
  
! 'foo' and 'bar' are distinct identifiers and expanded separately if they
! happen to be macros.  In other words, this directive is equivalent to
  
       #if foo bar
  
*************** with replacement text that contains an u
*** 3537,3543 ****
  you attempt to compile preprocessed output containing an unmatched quote
  you will get a syntax error.
  
!    However, all preprocessing directives other than `#define' require
  matching quotes.  For example:
  
       #define m This macro's fine and has an unmatched quote
--- 3514,3520 ----
  you attempt to compile preprocessed output containing an unmatched quote
  you will get a syntax error.
  
!    However, all preprocessing directives other than '#define' require
  matching quotes.  For example:
  
       #define m This macro's fine and has an unmatched quote
*************** can run together with the text after the
*** 3568,3583 ****
  single token.
  
     Normally comments are removed from the replacement text after the
! macro is expanded, but if the `-CC' option is passed on the
! command-line comments are preserved.  (In fact, the current
! implementation removes comments even before saving the macro
! replacement text, but it careful to do it in such a way that the
! observed effect is identical even in the function-like macro case.)
  
!    The ISO stringification operator `#' and token paste operator `##'
! have no special meaning.  As explained later, an effect similar to
! these operators can be obtained in a different way.  Macro names that
! are embedded in quotes, either from the main file or after macro
  replacement, do not expand.
  
     CPP replaces an unquoted object-like macro name with its replacement
--- 3545,3560 ----
  single token.
  
     Normally comments are removed from the replacement text after the
! macro is expanded, but if the '-CC' option is passed on the command-line
! comments are preserved.  (In fact, the current implementation removes
! comments even before saving the macro replacement text, but it careful
! to do it in such a way that the observed effect is identical even in the
! function-like macro case.)
  
!    The ISO stringification operator '#' and token paste operator '##'
! have no special meaning.  As explained later, an effect similar to these
! operators can be obtained in a different way.  Macro names that are
! embedded in quotes, either from the main file or after macro
  replacement, do not expand.
  
     CPP replaces an unquoted object-like macro name with its replacement
*************** invocation.
*** 3597,3619 ****
     Function-like macros are similar in form but quite different in
  behavior to their ISO counterparts.  Their arguments are contained
  within parentheses, are comma-separated, and can cross physical lines.
! Commas within nested parentheses are not treated as argument
! separators.  Similarly, a quote in an argument cannot be left unclosed;
! a following comma or parenthesis that comes before the closing quote is
! treated like any other character.  There is no facility for handling
! variadic macros.
  
     This implementation removes all comments from macro arguments, unless
! the `-C' option is given.  The form of all other horizontal whitespace
  in arguments is preserved, including leading and trailing whitespace.
  In particular
  
       f( )
  
! is treated as an invocation of the macro `f' with a single argument
  consisting of a single space.  If you want to invoke a function-like
! macro that takes no arguments, you must not leave any whitespace
! between the parentheses.
  
     If a macro argument crosses a new line, the new line is replaced with
  a space when forming the argument.  If the previous line contained an
--- 3574,3595 ----
     Function-like macros are similar in form but quite different in
  behavior to their ISO counterparts.  Their arguments are contained
  within parentheses, are comma-separated, and can cross physical lines.
! Commas within nested parentheses are not treated as argument separators.
! Similarly, a quote in an argument cannot be left unclosed; a following
! comma or parenthesis that comes before the closing quote is treated like
! any other character.  There is no facility for handling variadic macros.
  
     This implementation removes all comments from macro arguments, unless
! the '-C' option is given.  The form of all other horizontal whitespace
  in arguments is preserved, including leading and trailing whitespace.
  In particular
  
       f( )
  
! is treated as an invocation of the macro 'f' with a single argument
  consisting of a single space.  If you want to invoke a function-like
! macro that takes no arguments, you must not leave any whitespace between
! the parentheses.
  
     If a macro argument crosses a new line, the new line is replaced with
  a space when forming the argument.  If the previous line contained an
*************** File: cpp.info,  Node: Traditional misce
*** 3644,3659 ****
  Here are some things to be aware of when using the traditional
  preprocessor.
  
!    * Preprocessing directives are recognized only when their leading
!      `#' appears in the first column.  There can be no whitespace
!      between the beginning of the line and the `#', but whitespace can
!      follow the `#'.
  
!    * A true traditional C preprocessor does not recognize `#error' or
!      `#pragma', and may not recognize `#elif'.  CPP supports all the
       directives in traditional mode that it supports in ISO mode,
       including extensions, with the exception that the effects of
!      `#pragma GCC poison' are undefined.
  
     * __STDC__ is not defined.
  
--- 3620,3635 ----
  Here are some things to be aware of when using the traditional
  preprocessor.
  
!    * Preprocessing directives are recognized only when their leading '#'
!      appears in the first column.  There can be no whitespace between
!      the beginning of the line and the '#', but whitespace can follow
!      the '#'.
  
!    * A true traditional C preprocessor does not recognize '#error' or
!      '#pragma', and may not recognize '#elif'.  CPP supports all the
       directives in traditional mode that it supports in ISO mode,
       including extensions, with the exception that the effects of
!      '#pragma GCC poison' are undefined.
  
     * __STDC__ is not defined.
  
*************** preprocessor.
*** 3662,3668 ****
     * If a line that looks like a directive appears within macro
       arguments, the behavior is undefined.
  
- 
  
  File: cpp.info,  Node: Traditional warnings,  Prev: Traditional miscellany,  Up: Traditional Mode
  
--- 3638,3643 ----
*************** File: cpp.info,  Node: Traditional warni
*** 3670,3693 ****
  =========================
  
  You can request warnings about features that did not exist, or worked
! differently, in traditional C with the `-Wtraditional' option.  GCC
! does not warn about features of ISO C which you must use when you are
! using a conforming compiler, such as the `#' and `##' operators.
  
!    Presently `-Wtraditional' warns about:
  
     * Macro parameters that appear within string literals in the macro
!      body.  In traditional C macro replacement takes place within
!      string literals, but does not in ISO C.
  
     * In traditional C, some preprocessor directives did not exist.
       Traditional preprocessors would only consider a line to be a
!      directive if the `#' appeared in column 1 on the line.  Therefore
!      `-Wtraditional' warns about directives that traditional C
!      understands but would ignore because the `#' does not appear as the
       first character on the line.  It also suggests you hide directives
!      like `#pragma' not understood by traditional C by indenting them.
!      Some traditional implementations would not recognize `#elif', so it
       suggests avoiding it altogether.
  
     * A function-like macro that appears without an argument list.  In
--- 3645,3668 ----
  =========================
  
  You can request warnings about features that did not exist, or worked
! differently, in traditional C with the '-Wtraditional' option.  GCC does
! not warn about features of ISO C which you must use when you are using a
! conforming compiler, such as the '#' and '##' operators.
  
!    Presently '-Wtraditional' warns about:
  
     * Macro parameters that appear within string literals in the macro
!      body.  In traditional C macro replacement takes place within string
!      literals, but does not in ISO C.
  
     * In traditional C, some preprocessor directives did not exist.
       Traditional preprocessors would only consider a line to be a
!      directive if the '#' appeared in column 1 on the line.  Therefore
!      '-Wtraditional' warns about directives that traditional C
!      understands but would ignore because the '#' does not appear as the
       first character on the line.  It also suggests you hide directives
!      like '#pragma' not understood by traditional C by indenting them.
!      Some traditional implementations would not recognize '#elif', so it
       suggests avoiding it altogether.
  
     * A function-like macro that appears without an argument list.  In
*************** using a conforming compiler, such as the
*** 3696,3707 ****
  
     * The unary plus operator.  This did not exist in traditional C.
  
!    * The `U' and `LL' integer constant suffixes, which were not
!      available in traditional C.  (Traditional C does support the `L'
       suffix for simple long integer constants.)  You are not warned
       about uses of these suffixes in macros defined in system headers.
!      For instance, `UINT_MAX' may well be defined as `4294967295U', but
!      you will not be warned if you use `UINT_MAX'.
  
       You can usually avoid the warning, and the related warning about
       constants which are so large that they are unsigned, by writing the
--- 3671,3682 ----
  
     * The unary plus operator.  This did not exist in traditional C.
  
!    * The 'U' and 'LL' integer constant suffixes, which were not
!      available in traditional C.  (Traditional C does support the 'L'
       suffix for simple long integer constants.)  You are not warned
       about uses of these suffixes in macros defined in system headers.
!      For instance, 'UINT_MAX' may well be defined as '4294967295U', but
!      you will not be warned if you use 'UINT_MAX'.
  
       You can usually avoid the warning, and the related warning about
       constants which are so large that they are unsigned, by writing the
*************** File: cpp.info,  Node: Implementation-de
*** 3737,3803 ****
  ====================================
  
  This is how CPP behaves in all the cases which the C standard describes
! as "implementation-defined".  This term means that the implementation
! is free to do what it likes, but must document its choice and stick to
! it.
  
     * The mapping of physical source file multi-byte characters to the
       execution character set.
  
       The input character set can be specified using the
!      `-finput-charset' option, while the execution character set may be
!      controlled using the `-fexec-charset' and `-fwide-exec-charset'
       options.
  
!    * Identifier characters.  The C and C++ standards allow identifiers
!      to be composed of `_' and the alphanumeric characters.  C++ and
!      C99 also allow universal character names, and C99 further permits
!      implementation-defined characters.
  
!      GCC allows the `$' character in identifiers as an extension for
!      most targets.  This is true regardless of the `std=' switch, since
       this extension cannot conflict with standards-conforming programs.
       When preprocessing assembler, however, dollars are not identifier
       characters by default.
  
!      Currently the targets that by default do not permit `$' are AVR,
       IP2K, MMIX, MIPS Irix 3, ARM aout, and PowerPC targets for the AIX
       operating system.
  
!      You can override the default with `-fdollars-in-identifiers' or
!      `fno-dollars-in-identifiers'.  *Note fdollars-in-identifiers::.
  
     * Non-empty sequences of whitespace characters.
  
       In textual output, each whitespace sequence is collapsed to a
       single space.  For aesthetic reasons, the first token on each
       non-directive line of output is preceded with sufficient spaces
!      that it appears in the same column as it did in the original
!      source file.
  
     * The numeric value of character constants in preprocessor
       expressions.
  
       The preprocessor and compiler interpret character constants in the
!      same way; i.e. escape sequences such as `\a' are given the values
       they would have on the target machine.
  
       The compiler evaluates a multi-character character constant a
!      character at a time, shifting the previous value left by the
!      number of bits per target character, and then or-ing in the
!      bit-pattern of the new character truncated to the width of a
!      target character.  The final bit-pattern is given type `int', and
!      is therefore signed, regardless of whether single characters are
!      signed or not (a slight change from versions 3.1 and earlier of
!      GCC).  If there are more characters in the constant than would fit
!      in the target `int' the compiler issues a warning, and the excess
!      leading characters are ignored.
  
!      For example, `'ab'' for a target with an 8-bit `char' would be
       interpreted as
!      `(int) ((unsigned char) 'a' * 256 + (unsigned char) 'b')', and
!      `'\234a'' as
!      `(int) ((unsigned char) '\234' * 256 + (unsigned char) 'a')'.
  
     * Source file inclusion.
  
--- 3712,3779 ----
  ====================================
  
  This is how CPP behaves in all the cases which the C standard describes
! as "implementation-defined".  This term means that the implementation is
! free to do what it likes, but must document its choice and stick to it.
  
     * The mapping of physical source file multi-byte characters to the
       execution character set.
  
       The input character set can be specified using the
!      '-finput-charset' option, while the execution character set may be
!      controlled using the '-fexec-charset' and '-fwide-exec-charset'
       options.
  
!    * Identifier characters.
  
!      The C and C++ standards allow identifiers to be composed of '_' and
!      the alphanumeric characters.  C++ and C99 also allow universal
!      character names, and C99 further permits implementation-defined
!      characters.
! 
!      GCC allows the '$' character in identifiers as an extension for
!      most targets.  This is true regardless of the 'std=' switch, since
       this extension cannot conflict with standards-conforming programs.
       When preprocessing assembler, however, dollars are not identifier
       characters by default.
  
!      Currently the targets that by default do not permit '$' are AVR,
       IP2K, MMIX, MIPS Irix 3, ARM aout, and PowerPC targets for the AIX
       operating system.
  
!      You can override the default with '-fdollars-in-identifiers' or
!      'fno-dollars-in-identifiers'.  *Note fdollars-in-identifiers::.
  
     * Non-empty sequences of whitespace characters.
  
       In textual output, each whitespace sequence is collapsed to a
       single space.  For aesthetic reasons, the first token on each
       non-directive line of output is preceded with sufficient spaces
!      that it appears in the same column as it did in the original source
!      file.
  
     * The numeric value of character constants in preprocessor
       expressions.
  
       The preprocessor and compiler interpret character constants in the
!      same way; i.e. escape sequences such as '\a' are given the values
       they would have on the target machine.
  
       The compiler evaluates a multi-character character constant a
!      character at a time, shifting the previous value left by the number
!      of bits per target character, and then or-ing in the bit-pattern of
!      the new character truncated to the width of a target character.
!      The final bit-pattern is given type 'int', and is therefore signed,
!      regardless of whether single characters are signed or not (a slight
!      change from versions 3.1 and earlier of GCC).  If there are more
!      characters in the constant than would fit in the target 'int' the
!      compiler issues a warning, and the excess leading characters are
!      ignored.
  
!      For example, ''ab'' for a target with an 8-bit 'char' would be
       interpreted as
!      '(int) ((unsigned char) 'a' * 256 + (unsigned char) 'b')', and
!      ''\234a'' as
!      '(int) ((unsigned char) '\234' * 256 + (unsigned char) 'a')'.
  
     * Source file inclusion.
  
*************** it.
*** 3805,3823 ****
       *note Include Operation::.
  
     * Interpretation of the filename resulting from a macro-expanded
!      `#include' directive.
  
       *Note Computed Includes::.
  
!    * Treatment of a `#pragma' directive that after macro-expansion
       results in a standard pragma.
  
!      No macro expansion occurs on any `#pragma' directive line, so the
       question does not arise.
  
       Note that GCC does not yet implement any of the standard pragmas.
  
- 
  
  File: cpp.info,  Node: Implementation limits,  Next: Obsolete Features,  Prev: Implementation-defined behavior,  Up: Implementation Details
  
--- 3781,3798 ----
       *note Include Operation::.
  
     * Interpretation of the filename resulting from a macro-expanded
!      '#include' directive.
  
       *Note Computed Includes::.
  
!    * Treatment of a '#pragma' directive that after macro-expansion
       results in a standard pragma.
  
!      No macro expansion occurs on any '#pragma' directive line, so the
       question does not arise.
  
       Note that GCC does not yet implement any of the standard pragmas.
  
  
  File: cpp.info,  Node: Implementation limits,  Next: Obsolete Features,  Prev: Implementation-defined behavior,  Up: Implementation Details
  
*************** limit, please report that as a bug.  *No
*** 3832,3843 ****
  
     Where we say something is limited "only by available memory", that
  means that internal data structures impose no intrinsic limit, and space
! is allocated with `malloc' or equivalent.  The actual limit will
  therefore depend on many things, such as the size of other things
  allocated by the compiler at the same time, the amount of memory
  consumed by other processes on the same computer, etc.
  
!    * Nesting levels of `#include' files.
  
       We impose an arbitrary limit of 200 levels, to avoid runaway
       recursion.  The standard requires at least 15 levels.
--- 3807,3818 ----
  
     Where we say something is limited "only by available memory", that
  means that internal data structures impose no intrinsic limit, and space
! is allocated with 'malloc' or equivalent.  The actual limit will
  therefore depend on many things, such as the size of other things
  allocated by the compiler at the same time, the amount of memory
  consumed by other processes on the same computer, etc.
  
!    * Nesting levels of '#include' files.
  
       We impose an arbitrary limit of 200 levels, to avoid runaway
       recursion.  The standard requires at least 15 levels.
*************** consumed by other processes on the same
*** 3863,3872 ****
       The standard requires at least 4095 be possible.  CPP is limited
       only by available memory.
  
!    * Number of parameters in a macro definition and arguments in a
!      macro call.
  
!      We allow `USHRT_MAX', which is no smaller than 65,535.  The minimum
       required by the standard is 127.
  
     * Number of characters on a logical source line.
--- 3838,3847 ----
       The standard requires at least 4095 be possible.  CPP is limited
       only by available memory.
  
!    * Number of parameters in a macro definition and arguments in a macro
!      call.
  
!      We allow 'USHRT_MAX', which is no smaller than 65,535.  The minimum
       required by the standard is 127.
  
     * Number of characters on a logical source line.
*************** consumed by other processes on the same
*** 3878,3888 ****
     * Maximum size of a source file.
  
       The standard does not specify any lower limit on the maximum size
!      of a source file.  GNU cpp maps files into memory, so it is
!      limited by the available address space.  This is generally at
!      least two gigabytes.  Depending on the operating system, the size
!      of physical memory may or may not be a limitation.
! 
  
  
  File: cpp.info,  Node: Obsolete Features,  Next: Differences from previous versions,  Prev: Implementation limits,  Up: Implementation Details
--- 3853,3862 ----
     * Maximum size of a source file.
  
       The standard does not specify any lower limit on the maximum size
!      of a source file.  GNU cpp maps files into memory, so it is limited
!      by the available address space.  This is generally at least two
!      gigabytes.  Depending on the operating system, the size of physical
!      memory may or may not be a limitation.
  
  
  File: cpp.info,  Node: Obsolete Features,  Next: Differences from previous versions,  Prev: Implementation limits,  Up: Implementation Details
*************** File: cpp.info,  Node: Obsolete Features
*** 3891,3898 ****
  ======================
  
  CPP has some features which are present mainly for compatibility with
! older programs.  We discourage their use in new code.  In some cases,
! we plan to remove the feature in a future version of GCC.
  
  11.3.1 Assertions
  -----------------
--- 3865,3872 ----
  ======================
  
  CPP has some features which are present mainly for compatibility with
! older programs.  We discourage their use in new code.  In some cases, we
! plan to remove the feature in a future version of GCC.
  
  11.3.1 Assertions
  -----------------
*************** define them with preprocessing directive
*** 3906,3913 ****
  the compiler's target system and we added them for compatibility with
  existing compilers.  In practice they are just as unpredictable as the
  system-specific predefined macros.  In addition, they are not part of
! any standard, and only a few compilers support them.  Therefore, the
! use of assertions is *less* portable than the use of system-specific
  predefined macros.  We recommend you do not use them at all.
  
     An assertion looks like this:
--- 3880,3887 ----
  the compiler's target system and we added them for compatibility with
  existing compilers.  In practice they are just as unpredictable as the
  system-specific predefined macros.  In addition, they are not part of
! any standard, and only a few compilers support them.  Therefore, the use
! of assertions is *less* portable than the use of system-specific
  predefined macros.  We recommend you do not use them at all.
  
     An assertion looks like this:
*************** PREDICATE must be a single identifier.
*** 3918,3929 ****
  tokens; all characters are significant except for leading and trailing
  whitespace, and differences in internal whitespace sequences are
  ignored.  (This is similar to the rules governing macro redefinition.)
! Thus, `(x + y)' is different from `(x+y)' but equivalent to
! `( x + y )'.  Parentheses do not nest inside an answer.
  
!    To test an assertion, you write it in an `#if'.  For example, this
! conditional succeeds if either `vax' or `ns16000' has been asserted as
! an answer for `machine'.
  
       #if #machine (vax) || #machine (ns16000)
  
--- 3892,3903 ----
  tokens; all characters are significant except for leading and trailing
  whitespace, and differences in internal whitespace sequences are
  ignored.  (This is similar to the rules governing macro redefinition.)
! Thus, '(x + y)' is different from '(x+y)' but equivalent to '( x + y )'.
! Parentheses do not nest inside an answer.
  
!    To test an assertion, you write it in an '#if'.  For example, this
! conditional succeeds if either 'vax' or 'ns16000' has been asserted as
! an answer for 'machine'.
  
       #if #machine (vax) || #machine (ns16000)
  
*************** omitting the answer in the conditional:
*** 3932,3939 ****
  
       #if #machine
  
!    Assertions are made with the `#assert' directive.  Its sole argument
! is the assertion to make, without the leading `#' that identifies
  assertions in conditionals.
  
       #assert PREDICATE (ANSWER)
--- 3906,3913 ----
  
       #if #machine
  
!    Assertions are made with the '#assert' directive.  Its sole argument
! is the assertion to make, without the leading '#' that identifies
  assertions in conditionals.
  
       #assert PREDICATE (ANSWER)
*************** answers.  Subsequent assertions do not o
*** 3943,3957 ****
  same predicate.  All the answers for any given predicate are
  simultaneously true.
  
!    Assertions can be canceled with the `#unassert' directive.  It has
! the same syntax as `#assert'.  In that form it cancels only the answer
! which was specified on the `#unassert' line; other answers for that
  predicate remain true.  You can cancel an entire predicate by leaving
  out the answer:
  
       #unassert PREDICATE
  
! In either form, if no such assertion has been made, `#unassert' has no
  effect.
  
     You can also make or cancel assertions using command-line options.
--- 3917,3931 ----
  same predicate.  All the answers for any given predicate are
  simultaneously true.
  
!    Assertions can be canceled with the '#unassert' directive.  It has
! the same syntax as '#assert'.  In that form it cancels only the answer
! which was specified on the '#unassert' line; other answers for that
  predicate remain true.  You can cancel an entire predicate by leaving
  out the answer:
  
       #unassert PREDICATE
  
! In either form, if no such assertion has been made, '#unassert' has no
  effect.
  
     You can also make or cancel assertions using command-line options.
*************** File: cpp.info,  Node: Differences from
*** 3964,3971 ****
  =======================================
  
  This section details behavior which has changed from previous versions
! of CPP.  We do not plan to change it again in the near future, but we
! do not promise not to, either.
  
     The "previous versions" discussed here are 2.95 and before.  The
  behavior of GCC 3.0 is mostly the same as the behavior of the widely
--- 3938,3945 ----
  =======================================
  
  This section details behavior which has changed from previous versions
! of CPP.  We do not plan to change it again in the near future, but we do
! not promise not to, either.
  
     The "previous versions" discussed here are 2.95 and before.  The
  behavior of GCC 3.0 is mostly the same as the behavior of the widely
*************** they generally represent bugs in the sna
*** 3974,4021 ****
  
     * -I- deprecated
  
!      This option has been deprecated in 4.0.  `-iquote' is meant to
       replace the need for this option.
  
!    * Order of evaluation of `#' and `##' operators
  
       The standard does not specify the order of evaluation of a chain of
!      `##' operators, nor whether `#' is evaluated before, after, or at
!      the same time as `##'.  You should therefore not write any code
       which depends on any specific ordering.  It is possible to
       guarantee an ordering, if you need one, by suitable use of nested
       macros.
  
!      An example of where this might matter is pasting the arguments `1',
!      `e' and `-2'.  This would be fine for left-to-right pasting, but
!      right-to-left pasting would produce an invalid token `e-2'.
  
!      GCC 3.0 evaluates `#' and `##' at the same time and strictly left
!      to right.  Older versions evaluated all `#' operators first, then
!      all `##' operators, in an unreliable order.
  
     * The form of whitespace between tokens in preprocessor output
  
       *Note Preprocessor Output::, for the current textual format.  This
       is also the format used by stringification.  Normally, the
!      preprocessor communicates tokens directly to the compiler's
!      parser, and whitespace does not come up at all.
  
!      Older versions of GCC preserved all whitespace provided by the
!      user and inserted lots more whitespace of their own, because they
!      could not accurately predict when extra spaces were needed to
!      prevent accidental token pasting.
  
     * Optional argument when invoking rest argument macros
  
       As an extension, GCC permits you to omit the variable arguments
!      entirely when you use a variable argument macro.  This is
!      forbidden by the 1999 C standard, and will provoke a pedantic
!      warning with GCC 3.0.  Previous versions accepted it silently.
  
!    * `##' swallowing preceding text in rest argument macros
  
!      Formerly, in a macro expansion, if `##' appeared before a variable
       arguments parameter, and the set of tokens specified for that
       argument in the macro invocation was empty, previous versions of
       CPP would back up and remove the preceding sequence of
--- 3948,3995 ----
  
     * -I- deprecated
  
!      This option has been deprecated in 4.0.  '-iquote' is meant to
       replace the need for this option.
  
!    * Order of evaluation of '#' and '##' operators
  
       The standard does not specify the order of evaluation of a chain of
!      '##' operators, nor whether '#' is evaluated before, after, or at
!      the same time as '##'.  You should therefore not write any code
       which depends on any specific ordering.  It is possible to
       guarantee an ordering, if you need one, by suitable use of nested
       macros.
  
!      An example of where this might matter is pasting the arguments '1',
!      'e' and '-2'.  This would be fine for left-to-right pasting, but
!      right-to-left pasting would produce an invalid token 'e-2'.
  
!      GCC 3.0 evaluates '#' and '##' at the same time and strictly left
!      to right.  Older versions evaluated all '#' operators first, then
!      all '##' operators, in an unreliable order.
  
     * The form of whitespace between tokens in preprocessor output
  
       *Note Preprocessor Output::, for the current textual format.  This
       is also the format used by stringification.  Normally, the
!      preprocessor communicates tokens directly to the compiler's parser,
!      and whitespace does not come up at all.
  
!      Older versions of GCC preserved all whitespace provided by the user
!      and inserted lots more whitespace of their own, because they could
!      not accurately predict when extra spaces were needed to prevent
!      accidental token pasting.
  
     * Optional argument when invoking rest argument macros
  
       As an extension, GCC permits you to omit the variable arguments
!      entirely when you use a variable argument macro.  This is forbidden
!      by the 1999 C standard, and will provoke a pedantic warning with
!      GCC 3.0.  Previous versions accepted it silently.
  
!    * '##' swallowing preceding text in rest argument macros
  
!      Formerly, in a macro expansion, if '##' appeared before a variable
       arguments parameter, and the set of tokens specified for that
       argument in the macro invocation was empty, previous versions of
       CPP would back up and remove the preceding sequence of
*************** they generally represent bugs in the sna
*** 4023,4053 ****
       extension is in direct conflict with the 1999 C standard and has
       been drastically pared back.
  
!      In the current version of the preprocessor, if `##' appears between
       a comma and a variable arguments parameter, and the variable
       argument is omitted entirely, the comma will be removed from the
       expansion.  If the variable argument is empty, or the token before
!      `##' is not a comma, then `##' behaves as a normal token paste.
  
!    * `#line' and `#include'
  
!      The `#line' directive used to change GCC's notion of the
!      "directory containing the current file", used by `#include' with a
       double-quoted header file name.  In 3.0 and later, it does not.
       *Note Line Control::, for further explanation.
  
!    * Syntax of `#line'
  
!      In GCC 2.95 and previous, the string constant argument to `#line'
!      was treated the same way as the argument to `#include': backslash
!      escapes were not honored, and the string ended at the second `"'.
       This is not compliant with the C standard.  In GCC 3.0, an attempt
!      was made to correct the behavior, so that the string was treated
!      as a real string constant, but it turned out to be buggy.  In 3.1,
!      the bugs have been fixed.  (We are not fixing the bugs in 3.0
!      because they affect relatively few people and the fix is quite
!      invasive.)
! 
  
  
  File: cpp.info,  Node: Invocation,  Next: Environment Variables,  Prev: Implementation Details,  Up: Top
--- 3997,4025 ----
       extension is in direct conflict with the 1999 C standard and has
       been drastically pared back.
  
!      In the current version of the preprocessor, if '##' appears between
       a comma and a variable arguments parameter, and the variable
       argument is omitted entirely, the comma will be removed from the
       expansion.  If the variable argument is empty, or the token before
!      '##' is not a comma, then '##' behaves as a normal token paste.
  
!    * '#line' and '#include'
  
!      The '#line' directive used to change GCC's notion of the "directory
!      containing the current file", used by '#include' with a
       double-quoted header file name.  In 3.0 and later, it does not.
       *Note Line Control::, for further explanation.
  
!    * Syntax of '#line'
  
!      In GCC 2.95 and previous, the string constant argument to '#line'
!      was treated the same way as the argument to '#include': backslash
!      escapes were not honored, and the string ended at the second '"'.
       This is not compliant with the C standard.  In GCC 3.0, an attempt
!      was made to correct the behavior, so that the string was treated as
!      a real string constant, but it turned out to be buggy.  In 3.1, the
!      bugs have been fixed.  (We are not fixing the bugs in 3.0 because
!      they affect relatively few people and the fix is quite invasive.)
  
  
  File: cpp.info,  Node: Invocation,  Next: Environment Variables,  Prev: Implementation Details,  Up: Top
*************** here are also acceptable to the C compil
*** 4062,4100 ****
  except that the C compiler has different rules for specifying the output
  file.
  
!    _Note:_ Whether you use the preprocessor by way of `gcc' or `cpp',
  the "compiler driver" is run first.  This program's purpose is to
  translate your command into invocations of the programs that do the
  actual work.  Their command-line interfaces are similar but not
  identical to the documented interface, and may change without notice.
  
     The C preprocessor expects two file names as arguments, INFILE and
! OUTFILE.  The preprocessor reads INFILE together with any other files
! it specifies with `#include'.  All the output generated by the combined
  input files is written in OUTFILE.
  
!    Either INFILE or OUTFILE may be `-', which as INFILE means to read
  from standard input and as OUTFILE means to write to standard output.
! Also, if either file is omitted, it means the same as if `-' had been
  specified for that file.
  
!    Unless otherwise noted, or the option ends in `=', all options which
  take an argument may have that argument appear either immediately after
! the option, or with a space between option and argument: `-Ifoo' and
! `-I foo' have the same effect.
  
     Many options have multi-letter names; therefore multiple
! single-letter options may _not_ be grouped: `-dM' is very different from
! `-d -M'.
  
! `-D NAME'
!      Predefine NAME as a macro, with definition `1'.
  
! `-D NAME=DEFINITION'
       The contents of DEFINITION are tokenized and processed as if they
!      appeared during translation phase three in a `#define' directive.
!      In particular, the definition will be truncated by embedded
!      newline characters.
  
       If you are invoking the preprocessor from a shell or shell-like
       program you may need to use the shell's quoting syntax to protect
--- 4034,4072 ----
  except that the C compiler has different rules for specifying the output
  file.
  
!    _Note:_ Whether you use the preprocessor by way of 'gcc' or 'cpp',
  the "compiler driver" is run first.  This program's purpose is to
  translate your command into invocations of the programs that do the
  actual work.  Their command-line interfaces are similar but not
  identical to the documented interface, and may change without notice.
  
     The C preprocessor expects two file names as arguments, INFILE and
! OUTFILE.  The preprocessor reads INFILE together with any other files it
! specifies with '#include'.  All the output generated by the combined
  input files is written in OUTFILE.
  
!    Either INFILE or OUTFILE may be '-', which as INFILE means to read
  from standard input and as OUTFILE means to write to standard output.
! Also, if either file is omitted, it means the same as if '-' had been
  specified for that file.
  
!    Unless otherwise noted, or the option ends in '=', all options which
  take an argument may have that argument appear either immediately after
! the option, or with a space between option and argument: '-Ifoo' and '-I
! foo' have the same effect.
  
     Many options have multi-letter names; therefore multiple
! single-letter options may _not_ be grouped: '-dM' is very different from
! '-d -M'.
  
! '-D NAME'
!      Predefine NAME as a macro, with definition '1'.
  
! '-D NAME=DEFINITION'
       The contents of DEFINITION are tokenized and processed as if they
!      appeared during translation phase three in a '#define' directive.
!      In particular, the definition will be truncated by embedded newline
!      characters.
  
       If you are invoking the preprocessor from a shell or shell-like
       program you may need to use the shell's quoting syntax to protect
*************** single-letter options may _not_ be group
*** 4103,4178 ****
       If you wish to define a function-like macro on the command line,
       write its argument list with surrounding parentheses before the
       equals sign (if any).  Parentheses are meaningful to most shells,
!      so you will need to quote the option.  With `sh' and `csh',
!      `-D'NAME(ARGS...)=DEFINITION'' works.
  
!      `-D' and `-U' options are processed in the order they are given on
!      the command line.  All `-imacros FILE' and `-include FILE' options
!      are processed after all `-D' and `-U' options.
  
! `-U NAME'
!      Cancel any previous definition of NAME, either built in or
!      provided with a `-D' option.
  
! `-undef'
       Do not predefine any system-specific or GCC-specific macros.  The
       standard predefined macros remain defined.  *Note Standard
       Predefined Macros::.
  
! `-I DIR'
!      Add the directory DIR to the list of directories to be searched
!      for header files.  *Note Search Path::.  Directories named by `-I'
!      are searched before the standard system include directories.  If
!      the directory DIR is a standard system include directory, the
!      option is ignored to ensure that the default search order for
!      system directories and the special treatment of system headers are
!      not defeated (*note System Headers::) .  If DIR begins with `=',
!      then the `=' will be replaced by the sysroot prefix; see
!      `--sysroot' and `-isysroot'.
  
! `-o FILE'
       Write output to FILE.  This is the same as specifying FILE as the
!      second non-option argument to `cpp'.  `gcc' has a different
       interpretation of a second non-option argument, so you must use
!      `-o' to specify the output file.
  
! `-Wall'
       Turns on all optional warnings which are desirable for normal code.
!      At present this is `-Wcomment', `-Wtrigraphs', `-Wmultichar' and a
!      warning about integer promotion causing a change of sign in `#if'
       expressions.  Note that many of the preprocessor's warnings are on
       by default and have no options to control them.
  
! `-Wcomment'
! `-Wcomments'
!      Warn whenever a comment-start sequence `/*' appears in a `/*'
!      comment, or whenever a backslash-newline appears in a `//' comment.
       (Both forms have the same effect.)
  
! `-Wtrigraphs'
       Most trigraphs in comments cannot affect the meaning of the
       program.  However, a trigraph that would form an escaped newline
!      (`??/' at the end of a line) can, by changing where the comment
       begins or ends.  Therefore, only trigraphs that would form escaped
       newlines produce warnings inside a comment.
  
!      This option is implied by `-Wall'.  If `-Wall' is not given, this
       option is still enabled unless trigraphs are enabled.  To get
!      trigraph conversion without warnings, but get the other `-Wall'
!      warnings, use `-trigraphs -Wall -Wno-trigraphs'.
  
! `-Wtraditional'
       Warn about certain constructs that behave differently in
       traditional and ISO C.  Also warn about ISO C constructs that have
       no traditional C equivalent, and problematic constructs which
       should be avoided.  *Note Traditional Mode::.
  
! `-Wundef'
       Warn whenever an identifier which is not a macro is encountered in
!      an `#if' directive, outside of `defined'.  Such identifiers are
       replaced with zero.
  
! `-Wunused-macros'
       Warn about macros defined in the main file that are unused.  A
       macro is "used" if it is expanded or tested for existence at least
       once.  The preprocessor will also warn if the macro has not been
--- 4075,4150 ----
       If you wish to define a function-like macro on the command line,
       write its argument list with surrounding parentheses before the
       equals sign (if any).  Parentheses are meaningful to most shells,
!      so you will need to quote the option.  With 'sh' and 'csh',
!      '-D'NAME(ARGS...)=DEFINITION'' works.
  
!      '-D' and '-U' options are processed in the order they are given on
!      the command line.  All '-imacros FILE' and '-include FILE' options
!      are processed after all '-D' and '-U' options.
  
! '-U NAME'
!      Cancel any previous definition of NAME, either built in or provided
!      with a '-D' option.
  
! '-undef'
       Do not predefine any system-specific or GCC-specific macros.  The
       standard predefined macros remain defined.  *Note Standard
       Predefined Macros::.
  
! '-I DIR'
!      Add the directory DIR to the list of directories to be searched for
!      header files.  *Note Search Path::.  Directories named by '-I' are
!      searched before the standard system include directories.  If the
!      directory DIR is a standard system include directory, the option is
!      ignored to ensure that the default search order for system
!      directories and the special treatment of system headers are not
!      defeated (*note System Headers::) .  If DIR begins with '=', then
!      the '=' will be replaced by the sysroot prefix; see '--sysroot' and
!      '-isysroot'.
  
! '-o FILE'
       Write output to FILE.  This is the same as specifying FILE as the
!      second non-option argument to 'cpp'.  'gcc' has a different
       interpretation of a second non-option argument, so you must use
!      '-o' to specify the output file.
  
! '-Wall'
       Turns on all optional warnings which are desirable for normal code.
!      At present this is '-Wcomment', '-Wtrigraphs', '-Wmultichar' and a
!      warning about integer promotion causing a change of sign in '#if'
       expressions.  Note that many of the preprocessor's warnings are on
       by default and have no options to control them.
  
! '-Wcomment'
! '-Wcomments'
!      Warn whenever a comment-start sequence '/*' appears in a '/*'
!      comment, or whenever a backslash-newline appears in a '//' comment.
       (Both forms have the same effect.)
  
! '-Wtrigraphs'
       Most trigraphs in comments cannot affect the meaning of the
       program.  However, a trigraph that would form an escaped newline
!      ('??/' at the end of a line) can, by changing where the comment
       begins or ends.  Therefore, only trigraphs that would form escaped
       newlines produce warnings inside a comment.
  
!      This option is implied by '-Wall'.  If '-Wall' is not given, this
       option is still enabled unless trigraphs are enabled.  To get
!      trigraph conversion without warnings, but get the other '-Wall'
!      warnings, use '-trigraphs -Wall -Wno-trigraphs'.
  
! '-Wtraditional'
       Warn about certain constructs that behave differently in
       traditional and ISO C.  Also warn about ISO C constructs that have
       no traditional C equivalent, and problematic constructs which
       should be avoided.  *Note Traditional Mode::.
  
! '-Wundef'
       Warn whenever an identifier which is not a macro is encountered in
!      an '#if' directive, outside of 'defined'.  Such identifiers are
       replaced with zero.
  
! '-Wunused-macros'
       Warn about macros defined in the main file that are unused.  A
       macro is "used" if it is expanded or tested for existence at least
       once.  The preprocessor will also warn if the macro has not been
*************** single-letter options may _not_ be group
*** 4191,4199 ****
            #if defined the_macro_causing_the_warning
            #endif
  
! `-Wendif-labels'
!      Warn whenever an `#else' or an `#endif' are followed by text.
!      This usually happens in code of the form
  
            #if FOO
            ...
--- 4163,4171 ----
            #if defined the_macro_causing_the_warning
            #endif
  
! '-Wendif-labels'
!      Warn whenever an '#else' or an '#endif' are followed by text.  This
!      usually happens in code of the form
  
            #if FOO
            ...
*************** single-letter options may _not_ be group
*** 4201,4292 ****
            ...
            #endif FOO
  
!      The second and third `FOO' should be in comments, but often are not
       in older programs.  This warning is on by default.
  
! `-Werror'
       Make all warnings into hard errors.  Source code which triggers
       warnings will be rejected.
  
! `-Wsystem-headers'
       Issue warnings for code in system headers.  These are normally
       unhelpful in finding bugs in your own code, therefore suppressed.
       If you are responsible for the system library, you may want to see
       them.
  
! `-w'
       Suppress all warnings, including those which GNU CPP issues by
       default.
  
! `-pedantic'
!      Issue all the mandatory diagnostics listed in the C standard.
!      Some of them are left out by default, since they trigger
!      frequently on harmless code.
  
! `-pedantic-errors'
       Issue all the mandatory diagnostics, and make all mandatory
       diagnostics into errors.  This includes mandatory diagnostics that
!      GCC issues without `-pedantic' but treats as warnings.
  
! `-M'
       Instead of outputting the result of preprocessing, output a rule
!      suitable for `make' describing the dependencies of the main source
!      file.  The preprocessor outputs one `make' rule containing the
       object file name for that source file, a colon, and the names of
!      all the included files, including those coming from `-include' or
!      `-imacros' command-line options.
  
!      Unless specified explicitly (with `-MT' or `-MQ'), the object file
       name consists of the name of the source file with any suffix
       replaced with object file suffix and with any leading directory
       parts removed.  If there are many included files then the rule is
!      split into several lines using `\'-newline.  The rule has no
       commands.
  
!      This option does not suppress the preprocessor's debug output,
!      such as `-dM'.  To avoid mixing such debug output with the
!      dependency rules you should explicitly specify the dependency
!      output file with `-MF', or use an environment variable like
!      `DEPENDENCIES_OUTPUT' (*note Environment Variables::).  Debug
!      output will still be sent to the regular output stream as normal.
  
!      Passing `-M' to the driver implies `-E', and suppresses warnings
!      with an implicit `-w'.
  
! `-MM'
!      Like `-M' but do not mention header files that are found in system
!      header directories, nor header files that are included, directly
!      or indirectly, from such a header.
  
       This implies that the choice of angle brackets or double quotes in
!      an `#include' directive does not in itself determine whether that
!      header will appear in `-MM' dependency output.  This is a slight
       change in semantics from GCC versions 3.0 and earlier.
  
! `-MF FILE'
!      When used with `-M' or `-MM', specifies a file to write the
!      dependencies to.  If no `-MF' switch is given the preprocessor
       sends the rules to the same place it would have sent preprocessed
       output.
  
!      When used with the driver options `-MD' or `-MMD', `-MF' overrides
       the default dependency output file.
  
! `-MG'
!      In conjunction with an option such as `-M' requesting dependency
!      generation, `-MG' assumes missing header files are generated files
!      and adds them to the dependency list without raising an error.
!      The dependency filename is taken directly from the `#include'
!      directive without prepending any path.  `-MG' also suppresses
!      preprocessed output, as a missing header file renders this useless.
  
       This feature is used in automatic updating of makefiles.
  
! `-MP'
       This option instructs CPP to add a phony target for each dependency
       other than the main file, causing each to depend on nothing.  These
!      dummy rules work around errors `make' gives if you remove header
!      files without updating the `Makefile' to match.
  
       This is typical output:
  
--- 4173,4264 ----
            ...
            #endif FOO
  
!      The second and third 'FOO' should be in comments, but often are not
       in older programs.  This warning is on by default.
  
! '-Werror'
       Make all warnings into hard errors.  Source code which triggers
       warnings will be rejected.
  
! '-Wsystem-headers'
       Issue warnings for code in system headers.  These are normally
       unhelpful in finding bugs in your own code, therefore suppressed.
       If you are responsible for the system library, you may want to see
       them.
  
! '-w'
       Suppress all warnings, including those which GNU CPP issues by
       default.
  
! '-pedantic'
!      Issue all the mandatory diagnostics listed in the C standard.  Some
!      of them are left out by default, since they trigger frequently on
!      harmless code.
  
! '-pedantic-errors'
       Issue all the mandatory diagnostics, and make all mandatory
       diagnostics into errors.  This includes mandatory diagnostics that
!      GCC issues without '-pedantic' but treats as warnings.
  
! '-M'
       Instead of outputting the result of preprocessing, output a rule
!      suitable for 'make' describing the dependencies of the main source
!      file.  The preprocessor outputs one 'make' rule containing the
       object file name for that source file, a colon, and the names of
!      all the included files, including those coming from '-include' or
!      '-imacros' command-line options.
  
!      Unless specified explicitly (with '-MT' or '-MQ'), the object file
       name consists of the name of the source file with any suffix
       replaced with object file suffix and with any leading directory
       parts removed.  If there are many included files then the rule is
!      split into several lines using '\'-newline.  The rule has no
       commands.
  
!      This option does not suppress the preprocessor's debug output, such
!      as '-dM'.  To avoid mixing such debug output with the dependency
!      rules you should explicitly specify the dependency output file with
!      '-MF', or use an environment variable like 'DEPENDENCIES_OUTPUT'
!      (*note Environment Variables::).  Debug output will still be sent
!      to the regular output stream as normal.
  
!      Passing '-M' to the driver implies '-E', and suppresses warnings
!      with an implicit '-w'.
  
! '-MM'
!      Like '-M' but do not mention header files that are found in system
!      header directories, nor header files that are included, directly or
!      indirectly, from such a header.
  
       This implies that the choice of angle brackets or double quotes in
!      an '#include' directive does not in itself determine whether that
!      header will appear in '-MM' dependency output.  This is a slight
       change in semantics from GCC versions 3.0 and earlier.
  
! '-MF FILE'
!      When used with '-M' or '-MM', specifies a file to write the
!      dependencies to.  If no '-MF' switch is given the preprocessor
       sends the rules to the same place it would have sent preprocessed
       output.
  
!      When used with the driver options '-MD' or '-MMD', '-MF' overrides
       the default dependency output file.
  
! '-MG'
!      In conjunction with an option such as '-M' requesting dependency
!      generation, '-MG' assumes missing header files are generated files
!      and adds them to the dependency list without raising an error.  The
!      dependency filename is taken directly from the '#include' directive
!      without prepending any path.  '-MG' also suppresses preprocessed
!      output, as a missing header file renders this useless.
  
       This feature is used in automatic updating of makefiles.
  
! '-MP'
       This option instructs CPP to add a phony target for each dependency
       other than the main file, causing each to depend on nothing.  These
!      dummy rules work around errors 'make' gives if you remove header
!      files without updating the 'Makefile' to match.
  
       This is typical output:
  
*************** single-letter options may _not_ be group
*** 4294,4734 ****
  
            test.h:
  
! `-MT TARGET'
       Change the target of the rule emitted by dependency generation.  By
       default CPP takes the name of the main input file, deletes any
!      directory components and any file suffix such as `.c', and appends
       the platform's usual object suffix.  The result is the target.
  
!      An `-MT' option will set the target to be exactly the string you
       specify.  If you want multiple targets, you can specify them as a
!      single argument to `-MT', or use multiple `-MT' options.
  
!      For example, `-MT '$(objpfx)foo.o'' might give
  
            $(objpfx)foo.o: foo.c
  
! `-MQ TARGET'
!      Same as `-MT', but it quotes any characters which are special to
!      Make.  `-MQ '$(objpfx)foo.o'' gives
  
            $$(objpfx)foo.o: foo.c
  
       The default target is automatically quoted, as if it were given
!      with `-MQ'.
  
! `-MD'
!      `-MD' is equivalent to `-M -MF FILE', except that `-E' is not
!      implied.  The driver determines FILE based on whether an `-o'
!      option is given.  If it is, the driver uses its argument but with
!      a suffix of `.d', otherwise it takes the name of the input file,
!      removes any directory components and suffix, and applies a `.d'
       suffix.
  
!      If `-MD' is used in conjunction with `-E', any `-o' switch is
       understood to specify the dependency output file (*note -MF:
!      dashMF.), but if used without `-E', each `-o' is understood to
       specify a target object file.
  
!      Since `-E' is not implied, `-MD' can be used to generate a
       dependency output file as a side-effect of the compilation process.
  
! `-MMD'
!      Like `-MD' except mention only user header files, not system
!      header files.
  
! `-x c'
! `-x c++'
! `-x objective-c'
! `-x assembler-with-cpp'
       Specify the source language: C, C++, Objective-C, or assembly.
!      This has nothing to do with standards conformance or extensions;
!      it merely selects which base syntax to expect.  If you give none
!      of these options, cpp will deduce the language from the extension
!      of the source file: `.c', `.cc', `.m', or `.S'.  Some other common
       extensions for C++ and assembly are also recognized.  If cpp does
       not recognize the extension, it will treat the file as C; this is
       the most generic mode.
  
!      _Note:_ Previous versions of cpp accepted a `-lang' option which
       selected both the language and the standards conformance level.
!      This option has been removed, because it conflicts with the `-l'
       option.
  
! `-std=STANDARD'
! `-ansi'
       Specify the standard to which the code should conform.  Currently
       CPP knows about C and C++ standards; others may be added in the
       future.
  
       STANDARD may be one of:
!     `c90'
!     `c89'
!     `iso9899:1990'
!           The ISO C standard from 1990.  `c90' is the customary
            shorthand for this version of the standard.
  
!           The `-ansi' option is equivalent to `-std=c90'.
  
!     `iso9899:199409'
            The 1990 C standard, as amended in 1994.
  
!     `iso9899:1999'
!     `c99'
!     `iso9899:199x'
!     `c9x'
            The revised ISO C standard, published in December 1999.
            Before publication, this was known as C9X.
  
!     `iso9899:2011'
!     `c11'
!     `c1x'
            The revised ISO C standard, published in December 2011.
            Before publication, this was known as C1X.
  
!     `gnu90'
!     `gnu89'
            The 1990 C standard plus GNU extensions.  This is the default.
  
!     `gnu99'
!     `gnu9x'
            The 1999 C standard plus GNU extensions.
  
!     `gnu11'
!     `gnu1x'
            The 2011 C standard plus GNU extensions.
  
!     `c++98'
            The 1998 ISO C++ standard plus amendments.
  
!     `gnu++98'
!           The same as `-std=c++98' plus GNU extensions.  This is the
            default for C++ code.
  
! `-I-'
!      Split the include path.  Any directories specified with `-I'
!      options before `-I-' are searched only for headers requested with
!      `#include "FILE"'; they are not searched for `#include <FILE>'.
!      If additional directories are specified with `-I' options after
!      the `-I-', those directories are searched for all `#include'
       directives.
  
!      In addition, `-I-' inhibits the use of the directory of the current
!      file directory as the first search directory for `#include "FILE"'.
       *Note Search Path::.  This option has been deprecated.
  
! `-nostdinc'
       Do not search the standard system directories for header files.
!      Only the directories you have specified with `-I' options (and the
       directory of the current file, if appropriate) are searched.
  
! `-nostdinc++'
       Do not search for header files in the C++-specific standard
       directories, but do still search the other standard directories.
       (This option is used when building the C++ library.)
  
! `-include FILE'
!      Process FILE as if `#include "file"' appeared as the first line of
!      the primary source file.  However, the first directory searched
!      for FILE is the preprocessor's working directory _instead of_ the
       directory containing the main source file.  If not found there, it
!      is searched for in the remainder of the `#include "..."' search
       chain as normal.
  
!      If multiple `-include' options are given, the files are included
!      in the order they appear on the command line.
  
! `-imacros FILE'
!      Exactly like `-include', except that any output produced by
       scanning FILE is thrown away.  Macros it defines remain defined.
       This allows you to acquire all the macros from a header without
       also processing its declarations.
  
!      All files specified by `-imacros' are processed before all files
!      specified by `-include'.
  
! `-idirafter DIR'
       Search DIR for header files, but do it _after_ all directories
!      specified with `-I' and the standard system directories have been
       exhausted.  DIR is treated as a system include directory.  If DIR
!      begins with `=', then the `=' will be replaced by the sysroot
!      prefix; see `--sysroot' and `-isysroot'.
  
! `-iprefix PREFIX'
!      Specify PREFIX as the prefix for subsequent `-iwithprefix'
!      options.  If the prefix represents a directory, you should include
!      the final `/'.
  
! `-iwithprefix DIR'
! `-iwithprefixbefore DIR'
!      Append DIR to the prefix specified previously with `-iprefix', and
       add the resulting directory to the include search path.
!      `-iwithprefixbefore' puts it in the same place `-I' would;
!      `-iwithprefix' puts it where `-idirafter' would.
  
! `-isysroot DIR'
!      This option is like the `--sysroot' option, but applies only to
       header files (except for Darwin targets, where it applies to both
!      header files and libraries).  See the `--sysroot' option for more
       information.
  
! `-imultilib DIR'
       Use DIR as a subdirectory of the directory containing
       target-specific C++ headers.
  
! `-isystem DIR'
       Search DIR for header files, after all directories specified by
!      `-I' but before the standard system directories.  Mark it as a
       system directory, so that it gets the same special treatment as is
       applied to the standard system directories.  *Note System
!      Headers::.  If DIR begins with `=', then the `=' will be replaced
!      by the sysroot prefix; see `--sysroot' and `-isysroot'.
  
! `-iquote DIR'
!      Search DIR only for header files requested with `#include "FILE"';
!      they are not searched for `#include <FILE>', before all
!      directories specified by `-I' and before the standard system
!      directories.  *Note Search Path::.  If DIR begins with `=', then
!      the `=' will be replaced by the sysroot prefix; see `--sysroot'
!      and `-isysroot'.
  
! `-fdirectives-only'
       When preprocessing, handle directives, but do not expand macros.
  
!      The option's behavior depends on the `-E' and `-fpreprocessed'
       options.
  
!      With `-E', preprocessing is limited to the handling of directives
!      such as `#define', `#ifdef', and `#error'.  Other preprocessor
!      operations, such as macro expansion and trigraph conversion are
!      not performed.  In addition, the `-dD' option is implicitly
!      enabled.
  
!      With `-fpreprocessed', predefinition of command line and most
!      builtin macros is disabled.  Macros such as `__LINE__', which are
       contextually dependent, are handled normally.  This enables
!      compilation of files previously preprocessed with `-E
       -fdirectives-only'.
  
!      With both `-E' and `-fpreprocessed', the rules for
!      `-fpreprocessed' take precedence.  This enables full preprocessing
!      of files previously preprocessed with `-E -fdirectives-only'.
  
! `-fdollars-in-identifiers'
!      Accept `$' in identifiers.  *Note Identifier characters::.
  
! `-fextended-identifiers'
       Accept universal character names in identifiers.  This option is
       enabled by default for C99 (and later C standard versions) and C++.
  
! `-fno-canonical-system-headers'
       When preprocessing, do not shorten system header paths with
       canonicalization.
  
! `-fpreprocessed'
       Indicate to the preprocessor that the input file has already been
       preprocessed.  This suppresses things like macro expansion,
       trigraph conversion, escaped newline splicing, and processing of
       most directives.  The preprocessor still recognizes and removes
!      comments, so that you can pass a file preprocessed with `-C' to
!      the compiler without problems.  In this mode the integrated
       preprocessor is little more than a tokenizer for the front ends.
  
!      `-fpreprocessed' is implicit if the input file has one of the
!      extensions `.i', `.ii' or `.mi'.  These are the extensions that
!      GCC uses for preprocessed files created by `-save-temps'.
  
! `-ftabstop=WIDTH'
       Set the distance between tab stops.  This helps the preprocessor
       report correct column numbers in warnings or errors, even if tabs
       appear on the line.  If the value is less than 1 or greater than
       100, the option is ignored.  The default is 8.
  
! `-fdebug-cpp'
!      This option is only useful for debugging GCC.  When used with
!      `-E', dumps debugging information about location maps.  Every
!      token in the output is preceded by the dump of the map its location
!      belongs to.  The dump of the map holding the location of a token
!      would be:
!           {`P':`/file/path';`F':`/includer/path';`L':LINE_NUM;`C':COL_NUM;`S':SYSTEM_HEADER_P;`M':MAP_ADDRESS;`E':MACRO_EXPANSION_P,`loc':LOCATION}
  
!      When used without `-E', this option has no effect.
  
! `-ftrack-macro-expansion[=LEVEL]'
!      Track locations of tokens across macro expansions. This allows the
       compiler to emit diagnostic about the current macro expansion stack
!      when a compilation error occurs in a macro expansion. Using this
!      option makes the preprocessor and the compiler consume more
!      memory. The LEVEL parameter can be used to choose the level of
!      precision of token location tracking thus decreasing the memory
!      consumption if necessary. Value `0' of LEVEL de-activates this
!      option just as if no `-ftrack-macro-expansion' was present on the
!      command line. Value `1' tracks tokens locations in a degraded mode
!      for the sake of minimal memory overhead. In this mode all tokens
!      resulting from the expansion of an argument of a function-like
!      macro have the same location. Value `2' tracks tokens locations
!      completely. This value is the most memory hungry.  When this
!      option is given no argument, the default parameter value is `2'.
  
!      Note that `-ftrack-macro-expansion=2' is activated by default.
  
! `-fexec-charset=CHARSET'
       Set the execution character set, used for string and character
       constants.  The default is UTF-8.  CHARSET can be any encoding
!      supported by the system's `iconv' library routine.
  
! `-fwide-exec-charset=CHARSET'
       Set the wide execution character set, used for wide string and
       character constants.  The default is UTF-32 or UTF-16, whichever
!      corresponds to the width of `wchar_t'.  As with `-fexec-charset',
!      CHARSET can be any encoding supported by the system's `iconv'
       library routine; however, you will have problems with encodings
!      that do not fit exactly in `wchar_t'.
  
! `-finput-charset=CHARSET'
       Set the input character set, used for translation from the
!      character set of the input file to the source character set used
!      by GCC.  If the locale does not specify, or GCC cannot get this
       information from the locale, the default is UTF-8.  This can be
       overridden by either the locale or this command-line option.
       Currently the command-line option takes precedence if there's a
       conflict.  CHARSET can be any encoding supported by the system's
!      `iconv' library routine.
  
! `-fworking-directory'
       Enable generation of linemarkers in the preprocessor output that
       will let the compiler know the current working directory at the
       time of preprocessing.  When this option is enabled, the
       preprocessor will emit, after the initial linemarker, a second
       linemarker with the current working directory followed by two
       slashes.  GCC will use this directory, when it's present in the
!      preprocessed input, as the directory emitted as the current
!      working directory in some debugging information formats.  This
!      option is implicitly enabled if debugging information is enabled,
!      but this can be inhibited with the negated form
!      `-fno-working-directory'.  If the `-P' flag is present in the
!      command line, this option has no effect, since no `#line'
!      directives are emitted whatsoever.
  
! `-fno-show-column'
       Do not print column numbers in diagnostics.  This may be necessary
       if diagnostics are being scanned by a program that does not
!      understand the column numbers, such as `dejagnu'.
  
! `-A PREDICATE=ANSWER'
       Make an assertion with the predicate PREDICATE and answer ANSWER.
!      This form is preferred to the older form `-A PREDICATE(ANSWER)',
       which is still supported, because it does not use shell special
       characters.  *Note Obsolete Features::.
  
! `-A -PREDICATE=ANSWER'
       Cancel an assertion with the predicate PREDICATE and answer ANSWER.
  
! `-dCHARS'
!      CHARS is a sequence of one or more of the following characters,
!      and must not be preceded by a space.  Other characters are
!      interpreted by the compiler proper, or reserved for future
!      versions of GCC, and so are silently ignored.  If you specify
!      characters whose behavior conflicts, the result is undefined.
  
!     `M'
!           Instead of the normal output, generate a list of `#define'
            directives for all the macros defined during the execution of
!           the preprocessor, including predefined macros.  This gives
!           you a way of finding out what is predefined in your version
!           of the preprocessor.  Assuming you have no file `foo.h', the
!           command
  
                 touch foo.h; cpp -dM foo.h
  
            will show all the predefined macros.
  
!           If you use `-dM' without the `-E' option, `-dM' is
!           interpreted as a synonym for `-fdump-rtl-mach'.  *Note
!           Developer Options: (gcc)Developer Options.
  
!     `D'
!           Like `M' except in two respects: it does _not_ include the
!           predefined macros, and it outputs _both_ the `#define'
            directives and the result of preprocessing.  Both kinds of
            output go to the standard output file.
  
!     `N'
!           Like `D', but emit only the macro names, not their expansions.
  
!     `I'
!           Output `#include' directives in addition to the result of
            preprocessing.
  
!     `U'
!           Like `D' except that only macros that are expanded, or whose
            definedness is tested in preprocessor directives, are output;
            the output is delayed until the use or test of the macro; and
!           `#undef' directives are also output for macros tested but
            undefined at the time.
  
! `-P'
       Inhibit generation of linemarkers in the output from the
       preprocessor.  This might be useful when running the preprocessor
       on something that is not C code, and will be sent to a program
       which might be confused by the linemarkers.  *Note Preprocessor
       Output::.
  
! `-C'
       Do not discard comments.  All comments are passed through to the
!      output file, except for comments in processed directives, which
!      are deleted along with the directive.
  
!      You should be prepared for side effects when using `-C'; it causes
       the preprocessor to treat comments as tokens in their own right.
       For example, comments appearing at the start of what would be a
       directive line have the effect of turning that line into an
       ordinary source line, since the first token on the line is no
!      longer a `#'.
  
! `-CC'
       Do not discard comments, including during macro expansion.  This is
!      like `-C', except that comments contained within macros are also
       passed through to the output file where the macro is expanded.
  
!      In addition to the side-effects of the `-C' option, the `-CC'
!      option causes all C++-style comments inside a macro to be
!      converted to C-style comments.  This is to prevent later use of
!      that macro from inadvertently commenting out the remainder of the
!      source line.
  
!      The `-CC' option is generally used to support lint comments.
  
! `-traditional-cpp'
       Try to imitate the behavior of old-fashioned C preprocessors, as
       opposed to ISO C preprocessors.  *Note Traditional Mode::.
  
! `-trigraphs'
       Process trigraph sequences.  *Note Initial processing::.
  
! `-remap'
       Enable special code to work around file systems which only permit
       very short file names, such as MS-DOS.
  
! `--help'
! `--target-help'
       Print text describing all the command-line options instead of
       preprocessing anything.
  
! `-v'
       Verbose mode.  Print out GNU CPP's version number at the beginning
       of execution, and report the final form of the include path.
  
! `-H'
       Print the name of each header file used, in addition to other
       normal activities.  Each name is indented to show how deep in the
!      `#include' stack it is.  Precompiled header files are also
!      printed, even if they are found to be invalid; an invalid
!      precompiled header file is printed with `...x' and a valid one
!      with `...!' .
  
! `-version'
! `--version'
       Print out GNU CPP's version number.  With one dash, proceed to
       preprocess as normal.  With two dashes, exit immediately.
  
--- 4266,4701 ----
  
            test.h:
  
! '-MT TARGET'
! 
       Change the target of the rule emitted by dependency generation.  By
       default CPP takes the name of the main input file, deletes any
!      directory components and any file suffix such as '.c', and appends
       the platform's usual object suffix.  The result is the target.
  
!      An '-MT' option will set the target to be exactly the string you
       specify.  If you want multiple targets, you can specify them as a
!      single argument to '-MT', or use multiple '-MT' options.
  
!      For example, '-MT '$(objpfx)foo.o'' might give
  
            $(objpfx)foo.o: foo.c
  
! '-MQ TARGET'
! 
!      Same as '-MT', but it quotes any characters which are special to
!      Make.  '-MQ '$(objpfx)foo.o'' gives
  
            $$(objpfx)foo.o: foo.c
  
       The default target is automatically quoted, as if it were given
!      with '-MQ'.
  
! '-MD'
!      '-MD' is equivalent to '-M -MF FILE', except that '-E' is not
!      implied.  The driver determines FILE based on whether an '-o'
!      option is given.  If it is, the driver uses its argument but with a
!      suffix of '.d', otherwise it takes the name of the input file,
!      removes any directory components and suffix, and applies a '.d'
       suffix.
  
!      If '-MD' is used in conjunction with '-E', any '-o' switch is
       understood to specify the dependency output file (*note -MF:
!      dashMF.), but if used without '-E', each '-o' is understood to
       specify a target object file.
  
!      Since '-E' is not implied, '-MD' can be used to generate a
       dependency output file as a side-effect of the compilation process.
  
! '-MMD'
!      Like '-MD' except mention only user header files, not system header
!      files.
  
! '-x c'
! '-x c++'
! '-x objective-c'
! '-x assembler-with-cpp'
       Specify the source language: C, C++, Objective-C, or assembly.
!      This has nothing to do with standards conformance or extensions; it
!      merely selects which base syntax to expect.  If you give none of
!      these options, cpp will deduce the language from the extension of
!      the source file: '.c', '.cc', '.m', or '.S'.  Some other common
       extensions for C++ and assembly are also recognized.  If cpp does
       not recognize the extension, it will treat the file as C; this is
       the most generic mode.
  
!      _Note:_ Previous versions of cpp accepted a '-lang' option which
       selected both the language and the standards conformance level.
!      This option has been removed, because it conflicts with the '-l'
       option.
  
! '-std=STANDARD'
! '-ansi'
       Specify the standard to which the code should conform.  Currently
       CPP knows about C and C++ standards; others may be added in the
       future.
  
       STANDARD may be one of:
!      'c90'
!      'c89'
!      'iso9899:1990'
!           The ISO C standard from 1990.  'c90' is the customary
            shorthand for this version of the standard.
  
!           The '-ansi' option is equivalent to '-std=c90'.
  
!      'iso9899:199409'
            The 1990 C standard, as amended in 1994.
  
!      'iso9899:1999'
!      'c99'
!      'iso9899:199x'
!      'c9x'
            The revised ISO C standard, published in December 1999.
            Before publication, this was known as C9X.
  
!      'iso9899:2011'
!      'c11'
!      'c1x'
            The revised ISO C standard, published in December 2011.
            Before publication, this was known as C1X.
  
!      'gnu90'
!      'gnu89'
            The 1990 C standard plus GNU extensions.  This is the default.
  
!      'gnu99'
!      'gnu9x'
            The 1999 C standard plus GNU extensions.
  
!      'gnu11'
!      'gnu1x'
            The 2011 C standard plus GNU extensions.
  
!      'c++98'
            The 1998 ISO C++ standard plus amendments.
  
!      'gnu++98'
!           The same as '-std=c++98' plus GNU extensions.  This is the
            default for C++ code.
  
! '-I-'
!      Split the include path.  Any directories specified with '-I'
!      options before '-I-' are searched only for headers requested with
!      '#include "FILE"'; they are not searched for '#include <FILE>'.  If
!      additional directories are specified with '-I' options after the
!      '-I-', those directories are searched for all '#include'
       directives.
  
!      In addition, '-I-' inhibits the use of the directory of the current
!      file directory as the first search directory for '#include "FILE"'.
       *Note Search Path::.  This option has been deprecated.
  
! '-nostdinc'
       Do not search the standard system directories for header files.
!      Only the directories you have specified with '-I' options (and the
       directory of the current file, if appropriate) are searched.
  
! '-nostdinc++'
       Do not search for header files in the C++-specific standard
       directories, but do still search the other standard directories.
       (This option is used when building the C++ library.)
  
! '-include FILE'
!      Process FILE as if '#include "file"' appeared as the first line of
!      the primary source file.  However, the first directory searched for
!      FILE is the preprocessor's working directory _instead of_ the
       directory containing the main source file.  If not found there, it
!      is searched for in the remainder of the '#include "..."' search
       chain as normal.
  
!      If multiple '-include' options are given, the files are included in
!      the order they appear on the command line.
  
! '-imacros FILE'
!      Exactly like '-include', except that any output produced by
       scanning FILE is thrown away.  Macros it defines remain defined.
       This allows you to acquire all the macros from a header without
       also processing its declarations.
  
!      All files specified by '-imacros' are processed before all files
!      specified by '-include'.
  
! '-idirafter DIR'
       Search DIR for header files, but do it _after_ all directories
!      specified with '-I' and the standard system directories have been
       exhausted.  DIR is treated as a system include directory.  If DIR
!      begins with '=', then the '=' will be replaced by the sysroot
!      prefix; see '--sysroot' and '-isysroot'.
  
! '-iprefix PREFIX'
!      Specify PREFIX as the prefix for subsequent '-iwithprefix' options.
!      If the prefix represents a directory, you should include the final
!      '/'.
  
! '-iwithprefix DIR'
! '-iwithprefixbefore DIR'
!      Append DIR to the prefix specified previously with '-iprefix', and
       add the resulting directory to the include search path.
!      '-iwithprefixbefore' puts it in the same place '-I' would;
!      '-iwithprefix' puts it where '-idirafter' would.
  
! '-isysroot DIR'
!      This option is like the '--sysroot' option, but applies only to
       header files (except for Darwin targets, where it applies to both
!      header files and libraries).  See the '--sysroot' option for more
       information.
  
! '-imultilib DIR'
       Use DIR as a subdirectory of the directory containing
       target-specific C++ headers.
  
! '-isystem DIR'
       Search DIR for header files, after all directories specified by
!      '-I' but before the standard system directories.  Mark it as a
       system directory, so that it gets the same special treatment as is
       applied to the standard system directories.  *Note System
!      Headers::.  If DIR begins with '=', then the '=' will be replaced
!      by the sysroot prefix; see '--sysroot' and '-isysroot'.
  
! '-iquote DIR'
!      Search DIR only for header files requested with '#include "FILE"';
!      they are not searched for '#include <FILE>', before all directories
!      specified by '-I' and before the standard system directories.
!      *Note Search Path::.  If DIR begins with '=', then the '=' will be
!      replaced by the sysroot prefix; see '--sysroot' and '-isysroot'.
  
! '-fdirectives-only'
       When preprocessing, handle directives, but do not expand macros.
  
!      The option's behavior depends on the '-E' and '-fpreprocessed'
       options.
  
!      With '-E', preprocessing is limited to the handling of directives
!      such as '#define', '#ifdef', and '#error'.  Other preprocessor
!      operations, such as macro expansion and trigraph conversion are not
!      performed.  In addition, the '-dD' option is implicitly enabled.
  
!      With '-fpreprocessed', predefinition of command line and most
!      builtin macros is disabled.  Macros such as '__LINE__', which are
       contextually dependent, are handled normally.  This enables
!      compilation of files previously preprocessed with '-E
       -fdirectives-only'.
  
!      With both '-E' and '-fpreprocessed', the rules for '-fpreprocessed'
!      take precedence.  This enables full preprocessing of files
!      previously preprocessed with '-E -fdirectives-only'.
  
! '-fdollars-in-identifiers'
!      Accept '$' in identifiers.  *Note Identifier characters::.
  
! '-fextended-identifiers'
       Accept universal character names in identifiers.  This option is
       enabled by default for C99 (and later C standard versions) and C++.
  
! '-fno-canonical-system-headers'
       When preprocessing, do not shorten system header paths with
       canonicalization.
  
! '-fpreprocessed'
       Indicate to the preprocessor that the input file has already been
       preprocessed.  This suppresses things like macro expansion,
       trigraph conversion, escaped newline splicing, and processing of
       most directives.  The preprocessor still recognizes and removes
!      comments, so that you can pass a file preprocessed with '-C' to the
!      compiler without problems.  In this mode the integrated
       preprocessor is little more than a tokenizer for the front ends.
  
!      '-fpreprocessed' is implicit if the input file has one of the
!      extensions '.i', '.ii' or '.mi'.  These are the extensions that GCC
!      uses for preprocessed files created by '-save-temps'.
  
! '-ftabstop=WIDTH'
       Set the distance between tab stops.  This helps the preprocessor
       report correct column numbers in warnings or errors, even if tabs
       appear on the line.  If the value is less than 1 or greater than
       100, the option is ignored.  The default is 8.
  
! '-fdebug-cpp'
!      This option is only useful for debugging GCC. When used with '-E',
!      dumps debugging information about location maps.  Every token in
!      the output is preceded by the dump of the map its location belongs
!      to.  The dump of the map holding the location of a token would be:
!           {'P':/file/path;'F':/includer/path;'L':LINE_NUM;'C':COL_NUM;'S':SYSTEM_HEADER_P;'M':MAP_ADDRESS;'E':MACRO_EXPANSION_P,'loc':LOCATION}
  
!      When used without '-E', this option has no effect.
  
! '-ftrack-macro-expansion[=LEVEL]'
!      Track locations of tokens across macro expansions.  This allows the
       compiler to emit diagnostic about the current macro expansion stack
!      when a compilation error occurs in a macro expansion.  Using this
!      option makes the preprocessor and the compiler consume more memory.
!      The LEVEL parameter can be used to choose the level of precision of
!      token location tracking thus decreasing the memory consumption if
!      necessary.  Value '0' of LEVEL de-activates this option just as if
!      no '-ftrack-macro-expansion' was present on the command line.
!      Value '1' tracks tokens locations in a degraded mode for the sake
!      of minimal memory overhead.  In this mode all tokens resulting from
!      the expansion of an argument of a function-like macro have the same
!      location.  Value '2' tracks tokens locations completely.  This
!      value is the most memory hungry.  When this option is given no
!      argument, the default parameter value is '2'.
  
!      Note that '-ftrack-macro-expansion=2' is activated by default.
  
! '-fexec-charset=CHARSET'
       Set the execution character set, used for string and character
       constants.  The default is UTF-8.  CHARSET can be any encoding
!      supported by the system's 'iconv' library routine.
  
! '-fwide-exec-charset=CHARSET'
       Set the wide execution character set, used for wide string and
       character constants.  The default is UTF-32 or UTF-16, whichever
!      corresponds to the width of 'wchar_t'.  As with '-fexec-charset',
!      CHARSET can be any encoding supported by the system's 'iconv'
       library routine; however, you will have problems with encodings
!      that do not fit exactly in 'wchar_t'.
  
! '-finput-charset=CHARSET'
       Set the input character set, used for translation from the
!      character set of the input file to the source character set used by
!      GCC.  If the locale does not specify, or GCC cannot get this
       information from the locale, the default is UTF-8.  This can be
       overridden by either the locale or this command-line option.
       Currently the command-line option takes precedence if there's a
       conflict.  CHARSET can be any encoding supported by the system's
!      'iconv' library routine.
  
! '-fworking-directory'
       Enable generation of linemarkers in the preprocessor output that
       will let the compiler know the current working directory at the
       time of preprocessing.  When this option is enabled, the
       preprocessor will emit, after the initial linemarker, a second
       linemarker with the current working directory followed by two
       slashes.  GCC will use this directory, when it's present in the
!      preprocessed input, as the directory emitted as the current working
!      directory in some debugging information formats.  This option is
!      implicitly enabled if debugging information is enabled, but this
!      can be inhibited with the negated form '-fno-working-directory'.
!      If the '-P' flag is present in the command line, this option has no
!      effect, since no '#line' directives are emitted whatsoever.
  
! '-fno-show-column'
       Do not print column numbers in diagnostics.  This may be necessary
       if diagnostics are being scanned by a program that does not
!      understand the column numbers, such as 'dejagnu'.
  
! '-A PREDICATE=ANSWER'
       Make an assertion with the predicate PREDICATE and answer ANSWER.
!      This form is preferred to the older form '-A PREDICATE(ANSWER)',
       which is still supported, because it does not use shell special
       characters.  *Note Obsolete Features::.
  
! '-A -PREDICATE=ANSWER'
       Cancel an assertion with the predicate PREDICATE and answer ANSWER.
  
! '-dCHARS'
!      CHARS is a sequence of one or more of the following characters, and
!      must not be preceded by a space.  Other characters are interpreted
!      by the compiler proper, or reserved for future versions of GCC, and
!      so are silently ignored.  If you specify characters whose behavior
!      conflicts, the result is undefined.
  
!      'M'
!           Instead of the normal output, generate a list of '#define'
            directives for all the macros defined during the execution of
!           the preprocessor, including predefined macros.  This gives you
!           a way of finding out what is predefined in your version of the
!           preprocessor.  Assuming you have no file 'foo.h', the command
  
                 touch foo.h; cpp -dM foo.h
  
            will show all the predefined macros.
  
!           If you use '-dM' without the '-E' option, '-dM' is interpreted
!           as a synonym for '-fdump-rtl-mach'.  *Note (gcc)Developer
!           Options::.
  
!      'D'
!           Like 'M' except in two respects: it does _not_ include the
!           predefined macros, and it outputs _both_ the '#define'
            directives and the result of preprocessing.  Both kinds of
            output go to the standard output file.
  
!      'N'
!           Like 'D', but emit only the macro names, not their expansions.
  
!      'I'
!           Output '#include' directives in addition to the result of
            preprocessing.
  
!      'U'
!           Like 'D' except that only macros that are expanded, or whose
            definedness is tested in preprocessor directives, are output;
            the output is delayed until the use or test of the macro; and
!           '#undef' directives are also output for macros tested but
            undefined at the time.
  
! '-P'
       Inhibit generation of linemarkers in the output from the
       preprocessor.  This might be useful when running the preprocessor
       on something that is not C code, and will be sent to a program
       which might be confused by the linemarkers.  *Note Preprocessor
       Output::.
  
! '-C'
       Do not discard comments.  All comments are passed through to the
!      output file, except for comments in processed directives, which are
!      deleted along with the directive.
  
!      You should be prepared for side effects when using '-C'; it causes
       the preprocessor to treat comments as tokens in their own right.
       For example, comments appearing at the start of what would be a
       directive line have the effect of turning that line into an
       ordinary source line, since the first token on the line is no
!      longer a '#'.
  
! '-CC'
       Do not discard comments, including during macro expansion.  This is
!      like '-C', except that comments contained within macros are also
       passed through to the output file where the macro is expanded.
  
!      In addition to the side-effects of the '-C' option, the '-CC'
!      option causes all C++-style comments inside a macro to be converted
!      to C-style comments.  This is to prevent later use of that macro
!      from inadvertently commenting out the remainder of the source line.
  
!      The '-CC' option is generally used to support lint comments.
  
! '-traditional-cpp'
       Try to imitate the behavior of old-fashioned C preprocessors, as
       opposed to ISO C preprocessors.  *Note Traditional Mode::.
  
! '-trigraphs'
       Process trigraph sequences.  *Note Initial processing::.
  
! '-remap'
       Enable special code to work around file systems which only permit
       very short file names, such as MS-DOS.
  
! '--help'
! '--target-help'
       Print text describing all the command-line options instead of
       preprocessing anything.
  
! '-v'
       Verbose mode.  Print out GNU CPP's version number at the beginning
       of execution, and report the final form of the include path.
  
! '-H'
       Print the name of each header file used, in addition to other
       normal activities.  Each name is indented to show how deep in the
!      '#include' stack it is.  Precompiled header files are also printed,
!      even if they are found to be invalid; an invalid precompiled header
!      file is printed with '...x' and a valid one with '...!' .
  
! '-version'
! '--version'
       Print out GNU CPP's version number.  With one dash, proceed to
       preprocess as normal.  With two dashes, exit immediately.
  
*************** operates.  You can use them to specify d
*** 4743,4802 ****
  when searching for include files, or to control dependency output.
  
     Note that you can also specify places to search using options such as
! `-I', and control dependency output with options like `-M' (*note
  Invocation::).  These take precedence over environment variables, which
  in turn take precedence over the configuration of GCC.
  
! `CPATH'
! `C_INCLUDE_PATH'
! `CPLUS_INCLUDE_PATH'
! `OBJC_INCLUDE_PATH'
       Each variable's value is a list of directories separated by a
!      special character, much like `PATH', in which to look for header
!      files.  The special character, `PATH_SEPARATOR', is
       target-dependent and determined at GCC build time.  For Microsoft
       Windows-based targets it is a semicolon, and for almost all other
       targets it is a colon.
  
!      `CPATH' specifies a list of directories to be searched as if
!      specified with `-I', but after any paths given with `-I' options
!      on the command line.  This environment variable is used regardless
!      of which language is being preprocessed.
  
       The remaining environment variables apply only when preprocessing
       the particular language indicated.  Each specifies a list of
!      directories to be searched as if specified with `-isystem', but
!      after any paths given with `-isystem' options on the command line.
  
       In all these variables, an empty element instructs the compiler to
!      search its current working directory.  Empty elements can appear
!      at the beginning or end of a path.  For instance, if the value of
!      `CPATH' is `:/special/include', that has the same effect as
!      `-I. -I/special/include'.
  
       See also *note Search Path::.
  
! `DEPENDENCIES_OUTPUT'
       If this variable is set, its value specifies how to output
       dependencies for Make based on the non-system header files
       processed by the compiler.  System header files are ignored in the
       dependency output.
  
!      The value of `DEPENDENCIES_OUTPUT' can be just a file name, in
       which case the Make rules are written to that file, guessing the
       target name from the source file name.  Or the value can have the
!      form `FILE TARGET', in which case the rules are written to file
       FILE using TARGET as the target name.
  
       In other words, this environment variable is equivalent to
!      combining the options `-MM' and `-MF' (*note Invocation::), with
!      an optional `-MT' switch too.
  
! `SUNPRO_DEPENDENCIES'
!      This variable is the same as `DEPENDENCIES_OUTPUT' (see above),
!      except that system header files are not ignored, so it implies
!      `-M' rather than `-MM'.  However, the dependence on the main input
!      file is omitted.  *Note Invocation::.
  
  
  File: cpp.info,  Node: GNU Free Documentation License,  Next: Index of Directives,  Prev: Environment Variables,  Up: Top
--- 4710,4769 ----
  when searching for include files, or to control dependency output.
  
     Note that you can also specify places to search using options such as
! '-I', and control dependency output with options like '-M' (*note
  Invocation::).  These take precedence over environment variables, which
  in turn take precedence over the configuration of GCC.
  
! 'CPATH'
! 'C_INCLUDE_PATH'
! 'CPLUS_INCLUDE_PATH'
! 'OBJC_INCLUDE_PATH'
       Each variable's value is a list of directories separated by a
!      special character, much like 'PATH', in which to look for header
!      files.  The special character, 'PATH_SEPARATOR', is
       target-dependent and determined at GCC build time.  For Microsoft
       Windows-based targets it is a semicolon, and for almost all other
       targets it is a colon.
  
!      'CPATH' specifies a list of directories to be searched as if
!      specified with '-I', but after any paths given with '-I' options on
!      the command line.  This environment variable is used regardless of
!      which language is being preprocessed.
  
       The remaining environment variables apply only when preprocessing
       the particular language indicated.  Each specifies a list of
!      directories to be searched as if specified with '-isystem', but
!      after any paths given with '-isystem' options on the command line.
  
       In all these variables, an empty element instructs the compiler to
!      search its current working directory.  Empty elements can appear at
!      the beginning or end of a path.  For instance, if the value of
!      'CPATH' is ':/special/include', that has the same effect as
!      '-I. -I/special/include'.
  
       See also *note Search Path::.
  
! 'DEPENDENCIES_OUTPUT'
       If this variable is set, its value specifies how to output
       dependencies for Make based on the non-system header files
       processed by the compiler.  System header files are ignored in the
       dependency output.
  
!      The value of 'DEPENDENCIES_OUTPUT' can be just a file name, in
       which case the Make rules are written to that file, guessing the
       target name from the source file name.  Or the value can have the
!      form 'FILE TARGET', in which case the rules are written to file
       FILE using TARGET as the target name.
  
       In other words, this environment variable is equivalent to
!      combining the options '-MM' and '-MF' (*note Invocation::), with an
!      optional '-MT' switch too.
  
! 'SUNPRO_DEPENDENCIES'
!      This variable is the same as 'DEPENDENCIES_OUTPUT' (see above),
!      except that system header files are not ignored, so it implies '-M'
!      rather than '-MM'.  However, the dependence on the main input file
!      is omitted.  *Note Invocation::.
  
  
  File: cpp.info,  Node: GNU Free Documentation License,  Next: Index of Directives,  Prev: Environment Variables,  Up: Top
*************** GNU Free Documentation License
*** 4807,4813 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 4774,4780 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 4832,4852 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 4799,4819 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 4864,4875 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 4831,4842 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 4880,4906 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 4847,4873 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 4938,4945 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 4905,4912 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 4953,4964 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 4920,4930 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 4966,5005 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 4932,4970 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 5029,5059 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 4994,5023 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 5066,5076 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 5030,5040 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 5079,5093 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 5043,5057 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 5097,5104 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 5061,5068 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 5125,5144 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 5089,5108 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 5183,5190 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 5147,5154 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 5196,5228 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 5160,5192 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 5252,5258 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 5216,5221 ----
*************** notices just after the title page:
*** 5269,5275 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 5232,5238 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 5280,5288 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: cpp.info,  Node: Index of Directives,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
--- 5243,5251 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: cpp.info,  Node: Index of Directives,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
*************** Index of Directives
*** 5311,5318 ****
  * #pragma GCC dependency:                Pragmas.             (line  55)
  * #pragma GCC error:                     Pragmas.             (line 100)
  * #pragma GCC poison:                    Pragmas.             (line  67)
- * #pragma GCC system_header <1>:         Pragmas.             (line  94)
  * #pragma GCC system_header:             System Headers.      (line  31)
  * #pragma GCC warning:                   Pragmas.             (line  99)
  * #sccs:                                 Other Directives.    (line   6)
  * #unassert:                             Obsolete Features.   (line  59)
--- 5274,5281 ----
  * #pragma GCC dependency:                Pragmas.             (line  55)
  * #pragma GCC error:                     Pragmas.             (line 100)
  * #pragma GCC poison:                    Pragmas.             (line  67)
  * #pragma GCC system_header:             System Headers.      (line  31)
+ * #pragma GCC system_header <1>:         Pragmas.             (line  94)
  * #pragma GCC warning:                   Pragmas.             (line  99)
  * #sccs:                                 Other Directives.    (line   6)
  * #unassert:                             Obsolete Features.   (line  59)
*************** Option Index
*** 5327,5422 ****
  ************
  
  CPP's command-line options and environment variables are indexed here
! without any initial `-' or `--'.
  
  [index]
  * Menu:
  
! * A:                                     Invocation.          (line 567)
! * ansi:                                  Invocation.          (line 308)
! * C:                                     Invocation.          (line 626)
! * C_INCLUDE_PATH:                        Environment Variables.
!                                                               (line  16)
  * CPATH:                                 Environment Variables.
                                                                (line  15)
  * CPLUS_INCLUDE_PATH:                    Environment Variables.
                                                                (line  17)
! * D:                                     Invocation.          (line  39)
! * dD:                                    Invocation.          (line 599)
  * DEPENDENCIES_OUTPUT:                   Environment Variables.
!                                                               (line  44)
! * dI:                                    Invocation.          (line 608)
! * dM:                                    Invocation.          (line 583)
! * dN:                                    Invocation.          (line 605)
! * dU:                                    Invocation.          (line 612)
! * fdebug-cpp:                            Invocation.          (line 496)
! * fdirectives-only:                      Invocation.          (line 444)
! * fdollars-in-identifiers:               Invocation.          (line 466)
  * fexec-charset:                         Invocation.          (line 524)
! * fextended-identifiers:                 Invocation.          (line 469)
  * finput-charset:                        Invocation.          (line 537)
! * fno-canonical-system-headers:          Invocation.          (line 473)
! * fno-show-column:                       Invocation.          (line 562)
  * fno-working-directory:                 Invocation.          (line 547)
! * fpreprocessed:                         Invocation.          (line 477)
! * ftabstop:                              Invocation.          (line 490)
  * ftrack-macro-expansion:                Invocation.          (line 506)
  * fwide-exec-charset:                    Invocation.          (line 529)
  * fworking-directory:                    Invocation.          (line 547)
! * H:                                     Invocation.          (line 671)
! * help:                                  Invocation.          (line 663)
! * I:                                     Invocation.          (line  71)
! * I-:                                    Invocation.          (line 357)
! * idirafter:                             Invocation.          (line 399)
! * imacros:                               Invocation.          (line 390)
! * imultilib:                             Invocation.          (line 424)
! * include:                               Invocation.          (line 379)
! * iprefix:                               Invocation.          (line 406)
! * iquote:                                Invocation.          (line 436)
! * isysroot:                              Invocation.          (line 418)
! * isystem:                               Invocation.          (line 428)
! * iwithprefix:                           Invocation.          (line 412)
! * iwithprefixbefore:                     Invocation.          (line 412)
! * M:                                     Invocation.          (line 180)
! * MD:                                    Invocation.          (line 269)
! * MF:                                    Invocation.          (line 215)
! * MG:                                    Invocation.          (line 224)
! * MM:                                    Invocation.          (line 205)
! * MMD:                                   Invocation.          (line 285)
! * MP:                                    Invocation.          (line 234)
! * MQ:                                    Invocation.          (line 260)
! * MT:                                    Invocation.          (line 246)
! * nostdinc:                              Invocation.          (line 369)
! * nostdinc++:                            Invocation.          (line 374)
! * o:                                     Invocation.          (line  82)
  * OBJC_INCLUDE_PATH:                     Environment Variables.
                                                                (line  18)
! * P:                                     Invocation.          (line 619)
! * pedantic:                              Invocation.          (line 170)
! * pedantic-errors:                       Invocation.          (line 175)
! * remap:                                 Invocation.          (line 658)
! * std=:                                  Invocation.          (line 308)
  * SUNPRO_DEPENDENCIES:                   Environment Variables.
!                                                               (line  60)
! * target-help:                           Invocation.          (line 663)
! * traditional-cpp:                       Invocation.          (line 651)
! * trigraphs:                             Invocation.          (line 655)
! * U:                                     Invocation.          (line  62)
! * undef:                                 Invocation.          (line  66)
! * v:                                     Invocation.          (line 667)
! * version:                               Invocation.          (line 680)
! * w:                                     Invocation.          (line 166)
! * Wall:                                  Invocation.          (line  88)
! * Wcomment:                              Invocation.          (line  96)
! * Wcomments:                             Invocation.          (line  96)
! * Wendif-labels:                         Invocation.          (line 143)
! * Werror:                                Invocation.          (line 156)
! * Wsystem-headers:                       Invocation.          (line 160)
! * Wtraditional:                          Invocation.          (line 113)
! * Wtrigraphs:                            Invocation.          (line 101)
! * Wundef:                                Invocation.          (line 119)
! * Wunused-macros:                        Invocation.          (line 124)
! * x:                                     Invocation.          (line 292)
  
  
  File: cpp.info,  Node: Concept Index,  Prev: Option Index,  Up: Top
--- 5290,5385 ----
  ************
  
  CPP's command-line options and environment variables are indexed here
! without any initial '-' or '--'.
  
  [index]
  * Menu:
  
! * A:                                     Invocation.          (line 566)
! * ansi:                                  Invocation.          (line 311)
! * C:                                     Invocation.          (line 624)
  * CPATH:                                 Environment Variables.
                                                                (line  15)
  * CPLUS_INCLUDE_PATH:                    Environment Variables.
                                                                (line  17)
! * C_INCLUDE_PATH:                        Environment Variables.
!                                                               (line  16)
! * D:                                     Invocation.          (line  40)
! * dD:                                    Invocation.          (line 597)
  * DEPENDENCIES_OUTPUT:                   Environment Variables.
!                                                               (line  45)
! * dI:                                    Invocation.          (line 606)
! * dM:                                    Invocation.          (line 582)
! * dN:                                    Invocation.          (line 603)
! * dU:                                    Invocation.          (line 610)
! * fdebug-cpp:                            Invocation.          (line 497)
! * fdirectives-only:                      Invocation.          (line 446)
! * fdollars-in-identifiers:               Invocation.          (line 467)
  * fexec-charset:                         Invocation.          (line 524)
! * fextended-identifiers:                 Invocation.          (line 470)
  * finput-charset:                        Invocation.          (line 537)
! * fno-canonical-system-headers:          Invocation.          (line 474)
! * fno-show-column:                       Invocation.          (line 561)
  * fno-working-directory:                 Invocation.          (line 547)
! * fpreprocessed:                         Invocation.          (line 478)
! * ftabstop:                              Invocation.          (line 491)
  * ftrack-macro-expansion:                Invocation.          (line 506)
  * fwide-exec-charset:                    Invocation.          (line 529)
  * fworking-directory:                    Invocation.          (line 547)
! * H:                                     Invocation.          (line 668)
! * help:                                  Invocation.          (line 660)
! * I:                                     Invocation.          (line  72)
! * I-:                                    Invocation.          (line 360)
! * idirafter:                             Invocation.          (line 402)
! * imacros:                               Invocation.          (line 393)
! * imultilib:                             Invocation.          (line 427)
! * include:                               Invocation.          (line 382)
! * iprefix:                               Invocation.          (line 409)
! * iquote:                                Invocation.          (line 439)
! * isysroot:                              Invocation.          (line 421)
! * isystem:                               Invocation.          (line 431)
! * iwithprefix:                           Invocation.          (line 415)
! * iwithprefixbefore:                     Invocation.          (line 415)
! * M:                                     Invocation.          (line 181)
! * MD:                                    Invocation.          (line 272)
! * MF:                                    Invocation.          (line 216)
! * MG:                                    Invocation.          (line 225)
! * MM:                                    Invocation.          (line 206)
! * MMD:                                   Invocation.          (line 288)
! * MP:                                    Invocation.          (line 235)
! * MQ:                                    Invocation.          (line 262)
! * MT:                                    Invocation.          (line 247)
! * nostdinc:                              Invocation.          (line 372)
! * nostdinc++:                            Invocation.          (line 377)
! * o:                                     Invocation.          (line  83)
  * OBJC_INCLUDE_PATH:                     Environment Variables.
                                                                (line  18)
! * P:                                     Invocation.          (line 617)
! * pedantic:                              Invocation.          (line 171)
! * pedantic-errors:                       Invocation.          (line 176)
! * remap:                                 Invocation.          (line 655)
! * std=:                                  Invocation.          (line 311)
  * SUNPRO_DEPENDENCIES:                   Environment Variables.
!                                                               (line  61)
! * target-help:                           Invocation.          (line 660)
! * traditional-cpp:                       Invocation.          (line 648)
! * trigraphs:                             Invocation.          (line 652)
! * U:                                     Invocation.          (line  63)
! * undef:                                 Invocation.          (line  67)
! * v:                                     Invocation.          (line 664)
! * version:                               Invocation.          (line 676)
! * w:                                     Invocation.          (line 167)
! * Wall:                                  Invocation.          (line  89)
! * Wcomment:                              Invocation.          (line  97)
! * Wcomments:                             Invocation.          (line  97)
! * Wendif-labels:                         Invocation.          (line 144)
! * Werror:                                Invocation.          (line 157)
! * Wsystem-headers:                       Invocation.          (line 161)
! * Wtraditional:                          Invocation.          (line 114)
! * Wtrigraphs:                            Invocation.          (line 102)
! * Wundef:                                Invocation.          (line 120)
! * Wunused-macros:                        Invocation.          (line 125)
! * x:                                     Invocation.          (line 295)
  
  
  File: cpp.info,  Node: Concept Index,  Prev: Option Index,  Up: Top
*************** Concept Index
*** 5430,5436 ****
  * # operator:                            Stringification.     (line   6)
  * ## operator:                           Concatenation.       (line   6)
  * _Pragma:                               Pragmas.             (line  25)
! * alternative tokens:                    Tokenization.        (line 105)
  * arguments:                             Macro Arguments.     (line   6)
  * arguments in macro definitions:        Macro Arguments.     (line   6)
  * assertions:                            Obsolete Features.   (line  13)
--- 5393,5399 ----
  * # operator:                            Stringification.     (line   6)
  * ## operator:                           Concatenation.       (line   6)
  * _Pragma:                               Pragmas.             (line  25)
! * alternative tokens:                    Tokenization.        (line 104)
  * arguments:                             Macro Arguments.     (line   6)
  * arguments in macro definitions:        Macro Arguments.     (line   6)
  * assertions:                            Obsolete Features.   (line  13)
*************** Concept Index
*** 5438,5444 ****
  * backslash-newline:                     Initial processing.  (line  61)
  * block comments:                        Initial processing.  (line  77)
  * C++ named operators:                   C++ Named Operators. (line   6)
! * character constants:                   Tokenization.        (line  84)
  * character set, execution:              Invocation.          (line 524)
  * character set, input:                  Invocation.          (line 537)
  * character set, wide execution:         Invocation.          (line 529)
--- 5401,5407 ----
  * backslash-newline:                     Initial processing.  (line  61)
  * block comments:                        Initial processing.  (line  77)
  * C++ named operators:                   C++ Named Operators. (line   6)
! * character constants:                   Tokenization.        (line  83)
  * character set, execution:              Invocation.          (line 524)
  * character set, input:                  Invocation.          (line 537)
  * character set, wide execution:         Invocation.          (line 529)
*************** Concept Index
*** 5455,5466 ****
  * controlling macro:                     Once-Only Headers.   (line  35)
  * defined:                               Defined.             (line   6)
  * dependencies for make as output:       Environment Variables.
!                                                               (line  45)
! * dependencies, make:                    Invocation.          (line 180)
  * diagnostic:                            Diagnostics.         (line   6)
  * differences from previous versions:    Differences from previous versions.
                                                                (line   6)
! * digraphs:                              Tokenization.        (line 105)
  * directive line:                        The preprocessing language.
                                                                (line   6)
  * directive name:                        The preprocessing language.
--- 5418,5431 ----
  * controlling macro:                     Once-Only Headers.   (line  35)
  * defined:                               Defined.             (line   6)
  * dependencies for make as output:       Environment Variables.
!                                                               (line  46)
! * dependencies for make as output <1>:   Environment Variables.
!                                                               (line  62)
! * dependencies, make:                    Invocation.          (line 181)
  * diagnostic:                            Diagnostics.         (line   6)
  * differences from previous versions:    Differences from previous versions.
                                                                (line   6)
! * digraphs:                              Tokenization.        (line 104)
  * directive line:                        The preprocessing language.
                                                                (line   6)
  * directive name:                        The preprocessing language.
*************** Concept Index
*** 5478,5485 ****
  * grouping options:                      Invocation.          (line  34)
  * guard macro:                           Once-Only Headers.   (line  35)
  * header file:                           Header Files.        (line   6)
! * header file names:                     Tokenization.        (line  84)
! * identifiers:                           Tokenization.        (line  34)
  * implementation limits:                 Implementation limits.
                                                                (line   6)
  * implementation-defined behavior:       Implementation-defined behavior.
--- 5443,5450 ----
  * grouping options:                      Invocation.          (line  34)
  * guard macro:                           Once-Only Headers.   (line  35)
  * header file:                           Header Files.        (line   6)
! * header file names:                     Tokenization.        (line  83)
! * identifiers:                           Tokenization.        (line  33)
  * implementation limits:                 Implementation limits.
                                                                (line   6)
  * implementation-defined behavior:       Implementation-defined behavior.
*************** Concept Index
*** 5497,5513 ****
  * macros in include:                     Computed Includes.   (line   6)
  * macros with arguments:                 Macro Arguments.     (line   6)
  * macros with variable arguments:        Variadic Macros.     (line   6)
! * make:                                  Invocation.          (line 180)
  * manifest constants:                    Object-like Macros.  (line   6)
  * named operators:                       C++ Named Operators. (line   6)
  * newlines in macro arguments:           Newlines in Arguments.
                                                                (line   6)
  * null directive:                        Other Directives.    (line  15)
! * numbers:                               Tokenization.        (line  60)
  * object-like macro:                     Object-like Macros.  (line   6)
! * options:                               Invocation.          (line  38)
  * options, grouping:                     Invocation.          (line  34)
! * other tokens:                          Tokenization.        (line 119)
  * output format:                         Preprocessor Output. (line  12)
  * overriding a header file:              Wrapper Headers.     (line   6)
  * parentheses in macro bodies:           Operator Precedence Problems.
--- 5462,5478 ----
  * macros in include:                     Computed Includes.   (line   6)
  * macros with arguments:                 Macro Arguments.     (line   6)
  * macros with variable arguments:        Variadic Macros.     (line   6)
! * make:                                  Invocation.          (line 181)
  * manifest constants:                    Object-like Macros.  (line   6)
  * named operators:                       C++ Named Operators. (line   6)
  * newlines in macro arguments:           Newlines in Arguments.
                                                                (line   6)
  * null directive:                        Other Directives.    (line  15)
! * numbers:                               Tokenization.        (line  59)
  * object-like macro:                     Object-like Macros.  (line   6)
! * options:                               Invocation.          (line  39)
  * options, grouping:                     Invocation.          (line  34)
! * other tokens:                          Tokenization.        (line 118)
  * output format:                         Preprocessor Output. (line  12)
  * overriding a header file:              Wrapper Headers.     (line   6)
  * parentheses in macro bodies:           Operator Precedence Problems.
*************** Concept Index
*** 5519,5529 ****
  * predicates:                            Obsolete Features.   (line  26)
  * preprocessing directives:              The preprocessing language.
                                                                (line   6)
! * preprocessing numbers:                 Tokenization.        (line  60)
  * preprocessing tokens:                  Tokenization.        (line   6)
  * prescan of macro arguments:            Argument Prescan.    (line   6)
  * problems with macros:                  Macro Pitfalls.      (line   6)
! * punctuators:                           Tokenization.        (line 105)
  * redefining macros:                     Undefining and Redefining Macros.
                                                                (line   6)
  * repeated inclusion:                    Once-Only Headers.   (line   6)
--- 5484,5494 ----
  * predicates:                            Obsolete Features.   (line  26)
  * preprocessing directives:              The preprocessing language.
                                                                (line   6)
! * preprocessing numbers:                 Tokenization.        (line  59)
  * preprocessing tokens:                  Tokenization.        (line   6)
  * prescan of macro arguments:            Argument Prescan.    (line   6)
  * problems with macros:                  Macro Pitfalls.      (line   6)
! * punctuators:                           Tokenization.        (line 104)
  * redefining macros:                     Undefining and Redefining Macros.
                                                                (line   6)
  * repeated inclusion:                    Once-Only Headers.   (line   6)
*************** Concept Index
*** 5539,5550 ****
                                                                (line   6)
  * standard predefined macros.:           Standard Predefined Macros.
                                                                (line   6)
! * string constants:                      Tokenization.        (line  84)
! * string literals:                       Tokenization.        (line  84)
  * stringification:                       Stringification.     (line   6)
  * symbolic constants:                    Object-like Macros.  (line   6)
- * system header files <1>:               System Headers.      (line   6)
  * system header files:                   Header Files.        (line  13)
  * system-specific predefined macros:     System-specific Predefined Macros.
                                                                (line   6)
  * testing predicates:                    Obsolete Features.   (line  37)
--- 5504,5515 ----
                                                                (line   6)
  * standard predefined macros.:           Standard Predefined Macros.
                                                                (line   6)
! * string constants:                      Tokenization.        (line  83)
! * string literals:                       Tokenization.        (line  83)
  * stringification:                       Stringification.     (line   6)
  * symbolic constants:                    Object-like Macros.  (line   6)
  * system header files:                   Header Files.        (line  13)
+ * system header files <1>:               System Headers.      (line   6)
  * system-specific predefined macros:     System-specific Predefined Macros.
                                                                (line   6)
  * testing predicates:                    Obsolete Features.   (line  37)
*************** Concept Index
*** 5564,5642 ****
  
  
  Tag Table:
! Node: Top996
! Node: Overview3601
! Node: Character sets6434
! Ref: Character sets-Footnote-18591
! Node: Initial processing8772
! Ref: trigraphs10331
! Node: Tokenization14533
! Ref: Tokenization-Footnote-121564
! Node: The preprocessing language21675
! Node: Header Files24553
! Node: Include Syntax26469
! Node: Include Operation28106
! Node: Search Path29954
! Node: Once-Only Headers33155
! Node: Alternatives to Wrapper #ifndef34814
! Node: Computed Includes36557
! Node: Wrapper Headers39715
! Node: System Headers42141
! Node: Macros44191
! Node: Object-like Macros45332
! Node: Function-like Macros48922
! Node: Macro Arguments50538
! Node: Stringification54683
! Node: Concatenation57889
! Node: Variadic Macros60997
! Node: Predefined Macros65784
! Node: Standard Predefined Macros66372
! Node: Common Predefined Macros72375
! Node: System-specific Predefined Macros92463
! Node: C++ Named Operators94486
! Node: Undefining and Redefining Macros95450
! Node: Directives Within Macro Arguments97554
! Node: Macro Pitfalls99102
! Node: Misnesting99635
! Node: Operator Precedence Problems100747
! Node: Swallowing the Semicolon102613
! Node: Duplication of Side Effects104636
! Node: Self-Referential Macros106819
! Node: Argument Prescan109228
! Node: Newlines in Arguments112982
! Node: Conditionals113933
! Node: Conditional Uses115763
! Node: Conditional Syntax117121
! Node: Ifdef117441
! Node: If120607
! Node: Defined122911
! Node: Else124194
! Node: Elif124764
! Node: Deleted Code126053
! Node: Diagnostics127300
! Node: Line Control128847
! Node: Pragmas132651
! Node: Other Directives137407
! Node: Preprocessor Output138457
! Node: Traditional Mode141658
! Node: Traditional lexical analysis142716
! Node: Traditional macros145219
! Node: Traditional miscellany149021
! Node: Traditional warnings150018
! Node: Implementation Details152215
! Node: Implementation-defined behavior152836
! Ref: Identifier characters153588
! Node: Implementation limits156472
! Node: Obsolete Features159146
! Node: Differences from previous versions162034
! Node: Invocation166242
! Ref: Wtrigraphs170694
! Ref: dashMF175469
! Ref: fdollars-in-identifiers185200
! Node: Environment Variables195045
! Node: GNU Free Documentation License198011
! Node: Index of Directives223175
! Node: Option Index225255
! Node: Concept Index231658
  
  End Tag Table
--- 5529,5607 ----
  
  
  Tag Table:
! Node: Top945
! Node: Overview3549
! Node: Character sets6383
! Ref: Character sets-Footnote-18538
! Node: Initial processing8719
! Ref: trigraphs10278
! Node: Tokenization14478
! Ref: Tokenization-Footnote-121507
! Node: The preprocessing language21618
! Node: Header Files24497
! Node: Include Syntax26413
! Node: Include Operation28050
! Node: Search Path29898
! Node: Once-Only Headers33099
! Node: Alternatives to Wrapper #ifndef34758
! Node: Computed Includes36500
! Node: Wrapper Headers39658
! Node: System Headers42081
! Node: Macros44131
! Node: Object-like Macros45272
! Node: Function-like Macros48862
! Node: Macro Arguments50478
! Node: Stringification54621
! Node: Concatenation57827
! Node: Variadic Macros60935
! Node: Predefined Macros65722
! Node: Standard Predefined Macros66310
! Node: Common Predefined Macros72311
! Node: System-specific Predefined Macros92383
! Node: C++ Named Operators94406
! Node: Undefining and Redefining Macros95370
! Node: Directives Within Macro Arguments97468
! Node: Macro Pitfalls99016
! Node: Misnesting99549
! Node: Operator Precedence Problems100661
! Node: Swallowing the Semicolon102527
! Node: Duplication of Side Effects104550
! Node: Self-Referential Macros106733
! Node: Argument Prescan109142
! Node: Newlines in Arguments112897
! Node: Conditionals113848
! Node: Conditional Uses115677
! Node: Conditional Syntax117035
! Node: Ifdef117355
! Node: If120512
! Node: Defined122816
! Node: Else124097
! Node: Elif124667
! Node: Deleted Code125956
! Node: Diagnostics127203
! Node: Line Control128752
! Node: Pragmas132527
! Node: Other Directives137281
! Node: Preprocessor Output138331
! Node: Traditional Mode141529
! Node: Traditional lexical analysis142587
! Node: Traditional macros145090
! Node: Traditional miscellany148891
! Node: Traditional warnings149887
! Node: Implementation Details152084
! Node: Implementation-defined behavior152705
! Ref: Identifier characters153455
! Node: Implementation limits156344
! Node: Obsolete Features159017
! Node: Differences from previous versions161904
! Node: Invocation166106
! Ref: Wtrigraphs170558
! Ref: dashMF175335
! Ref: fdollars-in-identifiers185077
! Node: Environment Variables194880
! Node: GNU Free Documentation License197846
! Node: Index of Directives222991
! Node: Option Index225071
! Node: Concept Index231474
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/doc/cppinternals.info gcc-6.5.0/gcc/doc/cppinternals.info
*** gcc-6.4.0/gcc/doc/cppinternals.info	Tue Jul  4 09:27:46 2017
--- gcc-6.5.0/gcc/doc/cppinternals.info	Fri Oct 26 10:07:26 2018
***************
*** 1,12 ****
! This is doc/cppinternals.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/doc/cppinternals.texi.
  
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * Cpplib: (cppinternals).      Cpplib internals.
  END-INFO-DIR-ENTRY
  
!    This file documents the internals of the GNU C Preprocessor.
  
     Copyright (C) 2000-2016 Free Software Foundation, Inc.
  
--- 1,12 ----
! This is cppinternals.info, produced by makeinfo version 6.4 from
! cppinternals.texi.
  
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * Cpplib: (cppinternals).      Cpplib internals.
  END-INFO-DIR-ENTRY
  
! This file documents the internals of the GNU C Preprocessor.
  
     Copyright (C) 2000-2016 Free Software Foundation, Inc.
  
*************** preserved on all copies.
*** 16,23 ****
  
     Permission is granted to copy and distribute modified versions of
  this manual under the conditions for verbatim copying, provided also
! that the entire resulting derived work is distributed under the terms
! of a permission notice identical to this one.
  
     Permission is granted to copy and distribute translations of this
  manual into another language, under the above conditions for modified
--- 16,23 ----
  
     Permission is granted to copy and distribute modified versions of
  this manual under the conditions for verbatim copying, provided also
! that the entire resulting derived work is distributed under the terms of
! a permission notice identical to this one.
  
     Permission is granted to copy and distribute translations of this
  manual into another language, under the above conditions for modified
*************** File: cppinternals.info,  Node: Top,  Ne
*** 29,34 ****
--- 29,46 ----
  The GNU C Preprocessor Internals
  ********************************
  
+ * Menu:
+ 
+ * Conventions::
+ * Lexer::
+ * Hash Nodes::
+ * Macro Expansion::
+ * Token Spacing::
+ * Line Numbering::
+ * Guard Macros::
+ * Files::
+ * Concept Index::
+ 
  1 Cpplib--the GNU C Preprocessor
  ********************************
  
*************** preprocessor in previous versions of GCC
*** 46,54 ****
  as the fundamental unit.
  
     This brief manual documents the internals of cpplib, and explains
! some of the tricky issues.  It is intended that, along with the
! comments in the source code, a reasonably competent C programmer should
! be able to figure out what the code is doing, and why things have been
  implemented the way they have.
  
  * Menu:
--- 58,66 ----
  as the fundamental unit.
  
     This brief manual documents the internals of cpplib, and explains
! some of the tricky issues.  It is intended that, along with the comments
! in the source code, a reasonably competent C programmer should be able
! to figure out what the code is doing, and why things have been
  implemented the way they have.
  
  * Menu:
*************** File: cppinternals.info,  Node: Conventi
*** 69,85 ****
  Conventions
  ***********
  
! cpplib has two interfaces--one is exposed internally only, and the
! other is for both internal and external use.
  
     The convention is that functions and types that are exposed to
! multiple files internally are prefixed with `_cpp_', and are to be
! found in the file `internal.h'.  Functions and types exposed to external
! clients are in `cpplib.h', and prefixed with `cpp_'.  For historical
  reasons this is no longer quite true, but we should strive to stick to
  it.
  
!    We are striving to reduce the information exposed in `cpplib.h' to
  the bare minimum necessary, and then to keep it there.  This makes clear
  exactly what external clients are entitled to assume, and allows us to
  change internals in the future without worrying whether library clients
--- 81,97 ----
  Conventions
  ***********
  
! cpplib has two interfaces--one is exposed internally only, and the other
! is for both internal and external use.
  
     The convention is that functions and types that are exposed to
! multiple files internally are prefixed with '_cpp_', and are to be found
! in the file 'internal.h'.  Functions and types exposed to external
! clients are in 'cpplib.h', and prefixed with 'cpp_'.  For historical
  reasons this is no longer quite true, but we should strive to stick to
  it.
  
!    We are striving to reduce the information exposed in 'cpplib.h' to
  the bare minimum necessary, and then to keep it there.  This makes clear
  exactly what external clients are entitled to assume, and allows us to
  change internals in the future without worrying whether library clients
*************** The Lexer
*** 95,101 ****
  Overview
  ========
  
! The lexer is contained in the file `lex.c'.  It is a hand-coded lexer,
  and not implemented as a state machine.  It can understand C, C++ and
  Objective-C source code, and has been extended to allow reasonably
  successful preprocessing of assembly language.  The lexer does not make
--- 107,113 ----
  Overview
  ========
  
! The lexer is contained in the file 'lex.c'.  It is a hand-coded lexer,
  and not implemented as a state machine.  It can understand C, C++ and
  Objective-C source code, and has been extended to allow reasonably
  successful preprocessing of assembly language.  The lexer does not make
*************** them as they are encountered in a single
*** 104,120 ****
  returns preprocessing tokens individually, not a line at a time.
  
     It is mostly transparent to users of the library, since the library's
! interface for obtaining the next token, `cpp_get_token', takes care of
  lexing new tokens, handling directives, and expanding macros as
  necessary.  However, the lexer does expose some functionality so that
  clients of the library can easily spell a given token, such as
! `cpp_spell_token' and `cpp_token_len'.  These functions are useful when
  generating diagnostics, and for emitting the preprocessed output.
  
  Lexing a token
  ==============
  
! Lexing of an individual token is handled by `_cpp_lex_direct' and its
  subroutines.  In its current form the code is quite complicated, with
  read ahead characters and such-like, since it strives to not step back
  in the character stream in preparation for handling non-ASCII file
--- 116,132 ----
  returns preprocessing tokens individually, not a line at a time.
  
     It is mostly transparent to users of the library, since the library's
! interface for obtaining the next token, 'cpp_get_token', takes care of
  lexing new tokens, handling directives, and expanding macros as
  necessary.  However, the lexer does expose some functionality so that
  clients of the library can easily spell a given token, such as
! 'cpp_spell_token' and 'cpp_token_len'.  These functions are useful when
  generating diagnostics, and for emitting the preprocessed output.
  
  Lexing a token
  ==============
  
! Lexing of an individual token is handled by '_cpp_lex_direct' and its
  subroutines.  In its current form the code is quite complicated, with
  read ahead characters and such-like, since it strives to not step back
  in the character stream in preparation for handling non-ASCII file
*************** encodings.  The current plan is to conve
*** 122,187 ****
  before processing them.  This complexity is therefore unnecessary and
  will be removed, so I'll not discuss it further here.
  
!    The job of `_cpp_lex_direct' is simply to lex a token.  It is not
  responsible for issues like directive handling, returning lookahead
  tokens directly, multiple-include optimization, or conditional block
! skipping.  It necessarily has a minor ro^le to play in memory
! management of lexed lines.  I discuss these issues in a separate section
! (*note Lexing a line::).
  
     The lexer places the token it lexes into storage pointed to by the
! variable `cur_token', and then increments it.  This variable is
  important for correct diagnostic positioning.  Unless a specific line
  and column are passed to the diagnostic routines, they will examine the
! `line' and `col' values of the token just before the location that
! `cur_token' points to, and use that location to report the diagnostic.
  
     The lexer does not consider whitespace to be a token in its own
  right.  If whitespace (other than a new line) precedes a token, it sets
! the `PREV_WHITE' bit in the token's flags.  Each token has its `line'
! and `col' variables set to the line and column of the first character
! of the token.  This line number is the line number in the translation
! unit, and can be converted to a source (file, line) pair using the line
! map code.
  
!    The first token on a logical, i.e. unescaped, line has the flag
! `BOL' set for beginning-of-line.  This flag is intended for internal
! use, both to distinguish a `#' that begins a directive from one that
! doesn't, and to generate a call-back to clients that want to be
! notified about the start of every non-directive line with tokens on it.
! Clients cannot reliably determine this for themselves: the first token
! might be a macro, and the tokens of a macro expansion do not have the
! `BOL' flag set.  The macro expansion may even be empty, and the next
! token on the line certainly won't have the `BOL' flag set.
  
     New lines are treated specially; exactly how the lexer handles them
  is context-dependent.  The C standard mandates that directives are
  terminated by the first unescaped newline character, even if it appears
  in the middle of a macro expansion.  Therefore, if the state variable
! `in_directive' is set, the lexer returns a `CPP_EOF' token, which is
! normally used to indicate end-of-file, to indicate end-of-directive.
! In a directive a `CPP_EOF' token never means end-of-file.
! Conveniently, if the caller was `collect_args', it already handles
! `CPP_EOF' as if it were end-of-file, and reports an error about an
! unterminated macro argument list.
  
     The C standard also specifies that a new line in the middle of the
  arguments to a macro is treated as whitespace.  This white space is
  important in case the macro argument is stringified.  The state variable
! `parsing_args' is nonzero when the preprocessor is collecting the
  arguments to a macro call.  It is set to 1 when looking for the opening
  parenthesis to a function-like macro, and 2 when collecting the actual
  arguments up to the closing parenthesis, since these two cases need to
  be distinguished sometimes.  One such time is here: the lexer sets the
! `PREV_WHITE' flag of a token if it meets a new line when `parsing_args'
  is set to 2.  It doesn't set it if it meets a new line when
! `parsing_args' is 1, since then code like
  
       #define foo() bar
       foo
       baz
  
! would be output with an erroneous space before `baz':
  
       foo
        baz
--- 134,199 ----
  before processing them.  This complexity is therefore unnecessary and
  will be removed, so I'll not discuss it further here.
  
!    The job of '_cpp_lex_direct' is simply to lex a token.  It is not
  responsible for issues like directive handling, returning lookahead
  tokens directly, multiple-include optimization, or conditional block
! skipping.  It necessarily has a minor ro^le to play in memory management
! of lexed lines.  I discuss these issues in a separate section (*note
! Lexing a line::).
  
     The lexer places the token it lexes into storage pointed to by the
! variable 'cur_token', and then increments it.  This variable is
  important for correct diagnostic positioning.  Unless a specific line
  and column are passed to the diagnostic routines, they will examine the
! 'line' and 'col' values of the token just before the location that
! 'cur_token' points to, and use that location to report the diagnostic.
  
     The lexer does not consider whitespace to be a token in its own
  right.  If whitespace (other than a new line) precedes a token, it sets
! the 'PREV_WHITE' bit in the token's flags.  Each token has its 'line'
! and 'col' variables set to the line and column of the first character of
! the token.  This line number is the line number in the translation unit,
! and can be converted to a source (file, line) pair using the line map
! code.
  
!    The first token on a logical, i.e. unescaped, line has the flag 'BOL'
! set for beginning-of-line.  This flag is intended for internal use, both
! to distinguish a '#' that begins a directive from one that doesn't, and
! to generate a call-back to clients that want to be notified about the
! start of every non-directive line with tokens on it.  Clients cannot
! reliably determine this for themselves: the first token might be a
! macro, and the tokens of a macro expansion do not have the 'BOL' flag
! set.  The macro expansion may even be empty, and the next token on the
! line certainly won't have the 'BOL' flag set.
  
     New lines are treated specially; exactly how the lexer handles them
  is context-dependent.  The C standard mandates that directives are
  terminated by the first unescaped newline character, even if it appears
  in the middle of a macro expansion.  Therefore, if the state variable
! 'in_directive' is set, the lexer returns a 'CPP_EOF' token, which is
! normally used to indicate end-of-file, to indicate end-of-directive.  In
! a directive a 'CPP_EOF' token never means end-of-file.  Conveniently, if
! the caller was 'collect_args', it already handles 'CPP_EOF' as if it
! were end-of-file, and reports an error about an unterminated macro
! argument list.
  
     The C standard also specifies that a new line in the middle of the
  arguments to a macro is treated as whitespace.  This white space is
  important in case the macro argument is stringified.  The state variable
! 'parsing_args' is nonzero when the preprocessor is collecting the
  arguments to a macro call.  It is set to 1 when looking for the opening
  parenthesis to a function-like macro, and 2 when collecting the actual
  arguments up to the closing parenthesis, since these two cases need to
  be distinguished sometimes.  One such time is here: the lexer sets the
! 'PREV_WHITE' flag of a token if it meets a new line when 'parsing_args'
  is set to 2.  It doesn't set it if it meets a new line when
! 'parsing_args' is 1, since then code like
  
       #define foo() bar
       foo
       baz
  
! would be output with an erroneous space before 'baz':
  
       foo
        baz
*************** would be output with an erroneous space
*** 190,277 ****
  correct in the preprocessor; there are plenty of tests in the testsuite
  for corner cases like this.
  
!    The lexer is written to treat each of `\r', `\n', `\r\n' and `\n\r'
  as a single new line indicator.  This allows it to transparently
  preprocess MS-DOS, Macintosh and Unix files without their needing to
  pass through a special filter beforehand.
  
!    We also decided to treat a backslash, either `\' or the trigraph
! `??/', separated from one of the above newline indicators by
! non-comment whitespace only, as intending to escape the newline.  It
! tends to be a typing mistake, and cannot reasonably be mistaken for
! anything else in any of the C-family grammars.  Since handling it this
! way is not strictly conforming to the ISO standard, the library issues a
! warning wherever it encounters it.
  
     Handling newlines like this is made simpler by doing it in one place
! only.  The function `handle_newline' takes care of all newline
! characters, and `skip_escaped_newlines' takes care of arbitrarily long
! sequences of escaped newlines, deferring to `handle_newline' to handle
  the newlines themselves.
  
     The most painful aspect of lexing ISO-standard C and C++ is handling
  trigraphs and backlash-escaped newlines.  Trigraphs are processed before
  any interpretation of the meaning of a character is made, and
  unfortunately there is a trigraph representation for a backslash, so it
! is possible for the trigraph `??/' to introduce an escaped newline.
  
     Escaped newlines are tedious because theoretically they can occur
! anywhere--between the `+' and `=' of the `+=' token, within the
! characters of an identifier, and even between the `*' and `/' that
  terminates a comment.  Moreover, you cannot be sure there is just
  one--there might be an arbitrarily long sequence of them.
  
!    So, for example, the routine that lexes a number, `parse_number',
  cannot assume that it can scan forwards until the first non-number
! character and be done with it, because this could be the `\'
! introducing an escaped newline, or the `?' introducing the trigraph
! sequence that represents the `\' of an escaped newline.  If it
! encounters a `?' or `\', it calls `skip_escaped_newlines' to skip over
! any potential escaped newlines before checking whether the number has
! been finished.
  
!    Similarly code in the main body of `_cpp_lex_direct' cannot simply
! check for a `=' after a `+' character to determine whether it has a
! `+=' token; it needs to be prepared for an escaped newline of some
! sort.  Such cases use the function `get_effective_char', which returns
! the first character after any intervening escaped newlines.
  
     The lexer needs to keep track of the correct column position,
! including counting tabs as specified by the `-ftabstop=' option.  This
  should be done even within C-style comments; they can appear in the
  middle of a line, and we want to report diagnostics in the correct
  position for text appearing after the end of the comment.
  
!    Some identifiers, such as `__VA_ARGS__' and poisoned identifiers,
! may be invalid and require a diagnostic.  However, if they appear in a
! macro expansion we don't want to complain with each use of the macro.
! It is therefore best to catch them during the lexing stage, in
! `parse_identifier'.  In both cases, whether a diagnostic is needed or
  not is dependent upon the lexer's state.  For example, we don't want to
  issue a diagnostic for re-poisoning a poisoned identifier, or for using
! `__VA_ARGS__' in the expansion of a variable-argument macro.  Therefore
! `parse_identifier' makes use of state flags to determine whether a
  diagnostic is appropriate.  Since we change state on a per-token basis,
  and don't lex whole lines at a time, this is not a problem.
  
     Another place where state flags are used to change behavior is whilst
! lexing header names.  Normally, a `<' would be lexed as a single token.
! After a `#include' directive, though, it should be lexed as a single
! token as far as the nearest `>' character.  Note that we don't allow
! the terminators of header names to be escaped; the first `"' or `>'
  terminates the header name.
  
     Interpretation of some character sequences depends upon whether we
  are lexing C, C++ or Objective-C, and on the revision of the standard in
! force.  For example, `::' is a single token in C++, but in C it is two
! separate `:' tokens and almost certainly a syntax error.  Such cases
! are handled by `_cpp_lex_direct' based upon command-line flags stored
! in the `cpp_options' structure.
  
     Once a token has been lexed, it leads an independent existence.  The
  spelling of numbers, identifiers and strings is copied to permanent
  storage from the original input buffer, so a token remains valid and
! correct even if its source buffer is freed with `_cpp_pop_buffer'.  The
  storage holding the spellings of such tokens remains until the client
  program calls cpp_destroy, probably at the end of the translation unit.
  
--- 202,288 ----
  correct in the preprocessor; there are plenty of tests in the testsuite
  for corner cases like this.
  
!    The lexer is written to treat each of '\r', '\n', '\r\n' and '\n\r'
  as a single new line indicator.  This allows it to transparently
  preprocess MS-DOS, Macintosh and Unix files without their needing to
  pass through a special filter beforehand.
  
!    We also decided to treat a backslash, either '\' or the trigraph
! '??/', separated from one of the above newline indicators by non-comment
! whitespace only, as intending to escape the newline.  It tends to be a
! typing mistake, and cannot reasonably be mistaken for anything else in
! any of the C-family grammars.  Since handling it this way is not
! strictly conforming to the ISO standard, the library issues a warning
! wherever it encounters it.
  
     Handling newlines like this is made simpler by doing it in one place
! only.  The function 'handle_newline' takes care of all newline
! characters, and 'skip_escaped_newlines' takes care of arbitrarily long
! sequences of escaped newlines, deferring to 'handle_newline' to handle
  the newlines themselves.
  
     The most painful aspect of lexing ISO-standard C and C++ is handling
  trigraphs and backlash-escaped newlines.  Trigraphs are processed before
  any interpretation of the meaning of a character is made, and
  unfortunately there is a trigraph representation for a backslash, so it
! is possible for the trigraph '??/' to introduce an escaped newline.
  
     Escaped newlines are tedious because theoretically they can occur
! anywhere--between the '+' and '=' of the '+=' token, within the
! characters of an identifier, and even between the '*' and '/' that
  terminates a comment.  Moreover, you cannot be sure there is just
  one--there might be an arbitrarily long sequence of them.
  
!    So, for example, the routine that lexes a number, 'parse_number',
  cannot assume that it can scan forwards until the first non-number
! character and be done with it, because this could be the '\' introducing
! an escaped newline, or the '?' introducing the trigraph sequence that
! represents the '\' of an escaped newline.  If it encounters a '?' or
! '\', it calls 'skip_escaped_newlines' to skip over any potential escaped
! newlines before checking whether the number has been finished.
  
!    Similarly code in the main body of '_cpp_lex_direct' cannot simply
! check for a '=' after a '+' character to determine whether it has a '+='
! token; it needs to be prepared for an escaped newline of some sort.
! Such cases use the function 'get_effective_char', which returns the
! first character after any intervening escaped newlines.
  
     The lexer needs to keep track of the correct column position,
! including counting tabs as specified by the '-ftabstop=' option.  This
  should be done even within C-style comments; they can appear in the
  middle of a line, and we want to report diagnostics in the correct
  position for text appearing after the end of the comment.
  
!    Some identifiers, such as '__VA_ARGS__' and poisoned identifiers, may
! be invalid and require a diagnostic.  However, if they appear in a macro
! expansion we don't want to complain with each use of the macro.  It is
! therefore best to catch them during the lexing stage, in
! 'parse_identifier'.  In both cases, whether a diagnostic is needed or
  not is dependent upon the lexer's state.  For example, we don't want to
  issue a diagnostic for re-poisoning a poisoned identifier, or for using
! '__VA_ARGS__' in the expansion of a variable-argument macro.  Therefore
! 'parse_identifier' makes use of state flags to determine whether a
  diagnostic is appropriate.  Since we change state on a per-token basis,
  and don't lex whole lines at a time, this is not a problem.
  
     Another place where state flags are used to change behavior is whilst
! lexing header names.  Normally, a '<' would be lexed as a single token.
! After a '#include' directive, though, it should be lexed as a single
! token as far as the nearest '>' character.  Note that we don't allow the
! terminators of header names to be escaped; the first '"' or '>'
  terminates the header name.
  
     Interpretation of some character sequences depends upon whether we
  are lexing C, C++ or Objective-C, and on the revision of the standard in
! force.  For example, '::' is a single token in C++, but in C it is two
! separate ':' tokens and almost certainly a syntax error.  Such cases are
! handled by '_cpp_lex_direct' based upon command-line flags stored in the
! 'cpp_options' structure.
  
     Once a token has been lexed, it leads an independent existence.  The
  spelling of numbers, identifiers and strings is copied to permanent
  storage from the original input buffer, so a token remains valid and
! correct even if its source buffer is freed with '_cpp_pop_buffer'.  The
  storage holding the spellings of such tokens remains until the client
  program calls cpp_destroy, probably at the end of the translation unit.
  
*************** to cpplib itself internally.
*** 288,296 ****
  token stream.  For example, after the name of a function-like macro, it
  wants to check the next token to see if it is an opening parenthesis.
  Another example is that, after reading the first few tokens of a
! `#pragma' directive and not recognizing it as a registered pragma, it
  wants to backtrack and allow the user-defined handler for unknown
! pragmas to access the full `#pragma' token stream.  The stand-alone
  preprocessor wants to be able to test the current token with the
  previous one to see if a space needs to be inserted to preserve their
  separate tokenization upon re-lexing (paste avoidance), so it needs to
--- 299,307 ----
  token stream.  For example, after the name of a function-like macro, it
  wants to check the next token to see if it is an opening parenthesis.
  Another example is that, after reading the first few tokens of a
! '#pragma' directive and not recognizing it as a registered pragma, it
  wants to backtrack and allow the user-defined handler for unknown
! pragmas to access the full '#pragma' token stream.  The stand-alone
  preprocessor wants to be able to test the current token with the
  previous one to see if a space needs to be inserted to preserve their
  separate tokenization upon re-lexing (paste avoidance), so it needs to
*************** to jump back to a prior position in that
*** 303,310 ****
  preprocessor lex all tokens on a line consecutively into a token buffer,
  which I call a "token run", and when meeting an unescaped new line
  (newlines within comments do not count either), to start lexing back at
! the beginning of the run.  Note that we do _not_ lex a line of tokens
! at once; if we did that `parse_identifier' would not have state flags
  available to warn about invalid identifiers (*note Invalid
  identifiers::).
  
--- 314,321 ----
  preprocessor lex all tokens on a line consecutively into a token buffer,
  which I call a "token run", and when meeting an unescaped new line
  (newlines within comments do not count either), to start lexing back at
! the beginning of the run.  Note that we do _not_ lex a line of tokens at
! once; if we did that 'parse_identifier' would not have state flags
  available to warn about invalid identifiers (*note Invalid
  identifiers::).
  
*************** identifiers::).
*** 312,336 ****
  line is valid, but since each logical line overwrites the tokens of the
  previous line, tokens from prior lines are unavailable.  In particular,
  since a directive only occupies a single logical line, this means that
! the directive handlers like the `#pragma' handler can jump around in
! the directive's tokens if necessary.
  
     Two issues remain: what about tokens that arise from macro
! expansions, and what happens when we have a long line that overflows
! the token run?
  
     Since we promise clients that we preserve the validity of pointers
  that we have already returned for tokens that appeared earlier in the
! line, we cannot reallocate the run.  Instead, on overflow it is
! expanded by chaining a new token run on to the end of the existing one.
  
     The tokens forming a macro's replacement list are collected by the
! `#define' handler, and placed in storage that is only freed by
! `cpp_destroy'.  So if a macro is expanded in the line of tokens, the
  pointers to the tokens of its expansion that are returned will always
  remain valid.  However, macros are a little trickier than that, since
  they give rise to three sources of fresh tokens.  They are the built-in
! macros like `__LINE__', and the `#' and `##' operators for
  stringification and token pasting.  I handled this by allocating space
  for these tokens from the lexer's token run chain.  This means they
  automatically receive the same lifetime guarantees as lexed tokens, and
--- 323,347 ----
  line is valid, but since each logical line overwrites the tokens of the
  previous line, tokens from prior lines are unavailable.  In particular,
  since a directive only occupies a single logical line, this means that
! the directive handlers like the '#pragma' handler can jump around in the
! directive's tokens if necessary.
  
     Two issues remain: what about tokens that arise from macro
! expansions, and what happens when we have a long line that overflows the
! token run?
  
     Since we promise clients that we preserve the validity of pointers
  that we have already returned for tokens that appeared earlier in the
! line, we cannot reallocate the run.  Instead, on overflow it is expanded
! by chaining a new token run on to the end of the existing one.
  
     The tokens forming a macro's replacement list are collected by the
! '#define' handler, and placed in storage that is only freed by
! 'cpp_destroy'.  So if a macro is expanded in the line of tokens, the
  pointers to the tokens of its expansion that are returned will always
  remain valid.  However, macros are a little trickier than that, since
  they give rise to three sources of fresh tokens.  They are the built-in
! macros like '__LINE__', and the '#' and '##' operators for
  stringification and token pasting.  I handled this by allocating space
  for these tokens from the lexer's token run chain.  This means they
  automatically receive the same lifetime guarantees as lexed tokens, and
*************** management issues, but not all.  The ope
*** 341,360 ****
  function-like macro name might lie on a different line, and the front
  ends definitely want the ability to look ahead past the end of the
  current line.  So cpplib only moves back to the start of the token run
! at the end of a line if the variable `keep_tokens' is zero.
  Line-buffering is quite natural for the preprocessor, and as a result
  the only time cpplib needs to increment this variable is whilst looking
  for the opening parenthesis to, and reading the arguments of, a
! function-like macro.  In the near future cpplib will export an
! interface to increment and decrement this variable, so that clients can
! share full control over the lifetime of token pointers too.
  
!    The routine `_cpp_lex_token' handles moving to new token runs,
! calling `_cpp_lex_direct' to lex new tokens, or returning
  previously-lexed tokens if we stepped back in the token stream.  It also
! checks each token for the `BOL' flag, which might indicate a directive
  that needs to be handled, or require a start-of-line call-back to be
! made.  `_cpp_lex_token' also handles skipping over tokens in failed
  conditional blocks, and invalidates the control macro of the
  multiple-include optimization if a token was successfully lexed outside
  a directive.  In other words, its callers do not need to concern
--- 352,371 ----
  function-like macro name might lie on a different line, and the front
  ends definitely want the ability to look ahead past the end of the
  current line.  So cpplib only moves back to the start of the token run
! at the end of a line if the variable 'keep_tokens' is zero.
  Line-buffering is quite natural for the preprocessor, and as a result
  the only time cpplib needs to increment this variable is whilst looking
  for the opening parenthesis to, and reading the arguments of, a
! function-like macro.  In the near future cpplib will export an interface
! to increment and decrement this variable, so that clients can share full
! control over the lifetime of token pointers too.
  
!    The routine '_cpp_lex_token' handles moving to new token runs,
! calling '_cpp_lex_direct' to lex new tokens, or returning
  previously-lexed tokens if we stepped back in the token stream.  It also
! checks each token for the 'BOL' flag, which might indicate a directive
  that needs to be handled, or require a start-of-line call-back to be
! made.  '_cpp_lex_token' also handles skipping over tokens in failed
  conditional blocks, and invalidates the control macro of the
  multiple-include optimization if a token was successfully lexed outside
  a directive.  In other words, its callers do not need to concern
*************** Hash Nodes
*** 368,377 ****
  
  When cpplib encounters an "identifier", it generates a hash code for it
  and stores it in the hash table.  By "identifier" we mean tokens with
! type `CPP_NAME'; this includes identifiers in the usual C sense, as
! well as keywords, directive names, macro names and so on.  For example,
! all of `pragma', `int', `foo' and `__GNUC__' are identifiers and hashed
! when lexed.
  
     Each node in the hash table contain various information about the
  identifier it represents.  For example, its length and type.  At any one
--- 379,388 ----
  
  When cpplib encounters an "identifier", it generates a hash code for it
  and stores it in the hash table.  By "identifier" we mean tokens with
! type 'CPP_NAME'; this includes identifiers in the usual C sense, as well
! as keywords, directive names, macro names and so on.  For example, all
! of 'pragma', 'int', 'foo' and '__GNUC__' are identifiers and hashed when
! lexed.
  
     Each node in the hash table contain various information about the
  identifier it represents.  For example, its length and type.  At any one
*************** time, each identifier falls into exactly
*** 380,425 ****
     * Macros
  
       These have been declared to be macros, either on the command line
!      or with `#define'.  A few, such as `__TIME__' are built-ins
!      entered in the hash table during initialization.  The hash node
!      for a normal macro points to a structure with more information
!      about the macro, such as whether it is function-like, how many
!      arguments it takes, and its expansion.  Built-in macros are
!      flagged as special, and instead contain an enum indicating which
!      of the various built-in macros it is.
  
     * Assertions
  
!      Assertions are in a separate namespace to macros.  To enforce
!      this, cpp actually prepends a `#' character before hashing and
!      entering it in the hash table.  An assertion's node points to a
!      chain of answers to that assertion.
  
     * Void
  
       Everything else falls into this category--an identifier that is not
       currently a macro, or a macro that has since been undefined with
!      `#undef'.
  
       When preprocessing C++, this category also includes the named
!      operators, such as `xor'.  In expressions these behave like the
       operators they represent, but in contexts where the spelling of a
       token matters they are spelt differently.  This spelling
       distinction is relevant when they are operands of the stringizing
!      and pasting macro operators `#' and `##'.  Named operator hash
       nodes are flagged, both to catch the spelling distinction and to
       prevent them from being defined as macros.
  
     The same identifiers share the same hash node.  Since each identifier
  token, after lexing, contains a pointer to its hash node, this is used
  to provide rapid lookup of various information.  For example, when
! parsing a `#define' statement, CPP flags each argument's identifier
! hash node with the index of that argument.  This makes duplicated
! argument checking an O(1) operation for each argument.  Similarly, for
! each identifier in the macro's expansion, lookup to see if it is an
! argument, and which argument it is, is also an O(1) operation.  Further,
! each directive name, such as `endif', has an associated directive enum
! stored in its hash node, so that directive lookup is also O(1).
  
  
  File: cppinternals.info,  Node: Macro Expansion,  Next: Token Spacing,  Prev: Hash Nodes,  Up: Top
--- 391,436 ----
     * Macros
  
       These have been declared to be macros, either on the command line
!      or with '#define'.  A few, such as '__TIME__' are built-ins entered
!      in the hash table during initialization.  The hash node for a
!      normal macro points to a structure with more information about the
!      macro, such as whether it is function-like, how many arguments it
!      takes, and its expansion.  Built-in macros are flagged as special,
!      and instead contain an enum indicating which of the various
!      built-in macros it is.
  
     * Assertions
  
!      Assertions are in a separate namespace to macros.  To enforce this,
!      cpp actually prepends a '#' character before hashing and entering
!      it in the hash table.  An assertion's node points to a chain of
!      answers to that assertion.
  
     * Void
  
       Everything else falls into this category--an identifier that is not
       currently a macro, or a macro that has since been undefined with
!      '#undef'.
  
       When preprocessing C++, this category also includes the named
!      operators, such as 'xor'.  In expressions these behave like the
       operators they represent, but in contexts where the spelling of a
       token matters they are spelt differently.  This spelling
       distinction is relevant when they are operands of the stringizing
!      and pasting macro operators '#' and '##'.  Named operator hash
       nodes are flagged, both to catch the spelling distinction and to
       prevent them from being defined as macros.
  
     The same identifiers share the same hash node.  Since each identifier
  token, after lexing, contains a pointer to its hash node, this is used
  to provide rapid lookup of various information.  For example, when
! parsing a '#define' statement, CPP flags each argument's identifier hash
! node with the index of that argument.  This makes duplicated argument
! checking an O(1) operation for each argument.  Similarly, for each
! identifier in the macro's expansion, lookup to see if it is an argument,
! and which argument it is, is also an O(1) operation.  Further, each
! directive name, such as 'endif', has an associated directive enum stored
! in its hash node, so that directive lookup is also O(1).
  
  
  File: cppinternals.info,  Node: Macro Expansion,  Next: Token Spacing,  Prev: Hash Nodes,  Up: Top
*************** and situations that render what you thou
*** 432,460 ****
  the preprocessor's expansion algorithm wrong in quite subtle ways.
  
     I strongly recommend you have a good grasp of how the C and C++
! standards require macros to be expanded before diving into this
! section, let alone the code!.  If you don't have a clear mental picture
! of how things like nested macro expansion, stringification and token
! pasting are supposed to work, damage to your sanity can quickly result.
  
  Internal representation of macros
  =================================
  
  The preprocessor stores macro expansions in tokenized form.  This saves
! repeated lexing passes during expansion, at the cost of a small
! increase in memory consumption on average.  The tokens are stored
! contiguously in memory, so a pointer to the first one and a token count
! is all you need to get the replacement list of a macro.
  
     If the macro is a function-like macro the preprocessor also stores
  its parameters, in the form of an ordered list of pointers to the hash
  table entry of each parameter's identifier.  Further, in the macro's
  stored expansion each occurrence of a parameter is replaced with a
! special token of type `CPP_MACRO_ARG'.  Each such token holds the index
! of the parameter it represents in the parameter list, which allows
! rapid replacement of parameters with their arguments during expansion.
  Despite this optimization it is still necessary to store the original
! parameters to the macro, both for dumping with e.g., `-dD', and to warn
  about non-trivial macro redefinitions when the parameter names have
  changed.
  
--- 443,471 ----
  the preprocessor's expansion algorithm wrong in quite subtle ways.
  
     I strongly recommend you have a good grasp of how the C and C++
! standards require macros to be expanded before diving into this section,
! let alone the code!.  If you don't have a clear mental picture of how
! things like nested macro expansion, stringification and token pasting
! are supposed to work, damage to your sanity can quickly result.
  
  Internal representation of macros
  =================================
  
  The preprocessor stores macro expansions in tokenized form.  This saves
! repeated lexing passes during expansion, at the cost of a small increase
! in memory consumption on average.  The tokens are stored contiguously in
! memory, so a pointer to the first one and a token count is all you need
! to get the replacement list of a macro.
  
     If the macro is a function-like macro the preprocessor also stores
  its parameters, in the form of an ordered list of pointers to the hash
  table entry of each parameter's identifier.  Further, in the macro's
  stored expansion each occurrence of a parameter is replaced with a
! special token of type 'CPP_MACRO_ARG'.  Each such token holds the index
! of the parameter it represents in the parameter list, which allows rapid
! replacement of parameters with their arguments during expansion.
  Despite this optimization it is still necessary to store the original
! parameters to the macro, both for dumping with e.g., '-dD', and to warn
  about non-trivial macro redefinitions when the parameter names have
  changed.
  
*************** Macro expansion overview
*** 462,517 ****
  ========================
  
  The preprocessor maintains a "context stack", implemented as a linked
! list of `cpp_context' structures, which together represent the macro
! expansion state at any one time.  The `struct cpp_reader' member
! variable `context' points to the current top of this stack.  The top
  normally holds the unexpanded replacement list of the innermost macro
  under expansion, except when cpplib is about to pre-expand an argument,
  in which case it holds that argument's unexpanded tokens.
  
     When there are no macros under expansion, cpplib is in "base
! context".  All contexts other than the base context contain a
! contiguous list of tokens delimited by a starting and ending token.
! When not in base context, cpplib obtains the next token from the list
! of the top context.  If there are no tokens left in the list, it pops
! that context off the stack, and subsequent ones if necessary, until an
! unexhausted context is found or it returns to base context.  In base
! context, cpplib reads tokens directly from the lexer.
  
     If it encounters an identifier that is both a macro and enabled for
  expansion, cpplib prepares to push a new context for that macro on the
! stack by calling the routine `enter_macro_context'.  When this routine
  returns, the new context will contain the unexpanded tokens of the
  replacement list of that macro.  In the case of function-like macros,
! `enter_macro_context' also replaces any parameters in the replacement
! list, stored as `CPP_MACRO_ARG' tokens, with the appropriate macro
  argument.  If the standard requires that the parameter be replaced with
  its expanded argument, the argument will have been fully macro expanded
  first.
  
!    `enter_macro_context' also handles special macros like `__LINE__'.
  Although these macros expand to a single token which cannot contain any
! further macros, for reasons of token spacing (*note Token Spacing::)
! and simplicity of implementation, cpplib handles these special macros
! by pushing a context containing just that one token.
  
!    The final thing that `enter_macro_context' does before returning is
! to mark the macro disabled for expansion (except for special macros
! like `__TIME__').  The macro is re-enabled when its context is later
! popped from the context stack, as described above.  This strict
! ordering ensures that a macro is disabled whilst its expansion is being
! scanned, but that it is _not_ disabled whilst any arguments to it are
! being expanded.
  
  Scanning the replacement list for macros to expand
  ==================================================
  
! The C standard states that, after any parameters have been replaced
! with their possibly-expanded arguments, the replacement list is scanned
! for nested macros.  Further, any identifiers in the replacement list
! that are not expanded during this scan are never again eligible for
! expansion in the future, if the reason they were not expanded is that
! the macro in question was disabled.
  
     Clearly this latter condition can only apply to tokens resulting from
  argument pre-expansion.  Other tokens never have an opportunity to be
--- 473,528 ----
  ========================
  
  The preprocessor maintains a "context stack", implemented as a linked
! list of 'cpp_context' structures, which together represent the macro
! expansion state at any one time.  The 'struct cpp_reader' member
! variable 'context' points to the current top of this stack.  The top
  normally holds the unexpanded replacement list of the innermost macro
  under expansion, except when cpplib is about to pre-expand an argument,
  in which case it holds that argument's unexpanded tokens.
  
     When there are no macros under expansion, cpplib is in "base
! context".  All contexts other than the base context contain a contiguous
! list of tokens delimited by a starting and ending token.  When not in
! base context, cpplib obtains the next token from the list of the top
! context.  If there are no tokens left in the list, it pops that context
! off the stack, and subsequent ones if necessary, until an unexhausted
! context is found or it returns to base context.  In base context, cpplib
! reads tokens directly from the lexer.
  
     If it encounters an identifier that is both a macro and enabled for
  expansion, cpplib prepares to push a new context for that macro on the
! stack by calling the routine 'enter_macro_context'.  When this routine
  returns, the new context will contain the unexpanded tokens of the
  replacement list of that macro.  In the case of function-like macros,
! 'enter_macro_context' also replaces any parameters in the replacement
! list, stored as 'CPP_MACRO_ARG' tokens, with the appropriate macro
  argument.  If the standard requires that the parameter be replaced with
  its expanded argument, the argument will have been fully macro expanded
  first.
  
!    'enter_macro_context' also handles special macros like '__LINE__'.
  Although these macros expand to a single token which cannot contain any
! further macros, for reasons of token spacing (*note Token Spacing::) and
! simplicity of implementation, cpplib handles these special macros by
! pushing a context containing just that one token.
  
!    The final thing that 'enter_macro_context' does before returning is
! to mark the macro disabled for expansion (except for special macros like
! '__TIME__').  The macro is re-enabled when its context is later popped
! from the context stack, as described above.  This strict ordering
! ensures that a macro is disabled whilst its expansion is being scanned,
! but that it is _not_ disabled whilst any arguments to it are being
! expanded.
  
  Scanning the replacement list for macros to expand
  ==================================================
  
! The C standard states that, after any parameters have been replaced with
! their possibly-expanded arguments, the replacement list is scanned for
! nested macros.  Further, any identifiers in the replacement list that
! are not expanded during this scan are never again eligible for expansion
! in the future, if the reason they were not expanded is that the macro in
! question was disabled.
  
     Clearly this latter condition can only apply to tokens resulting from
  argument pre-expansion.  Other tokens never have an opportunity to be
*************** looking for the _next_ token do we pop i
*** 530,556 ****
  lower context.  This makes backing up by one token easy, but more
  importantly ensures that the macro corresponding to the current context
  is still disabled when we are considering the last token of its
! replacement list for expansion (or indeed expanding it).  As an
! example, which illustrates many of the points above, consider
  
       #define foo(x) bar x
       foo(foo) (2)
  
! which fully expands to `bar foo (2)'.  During pre-expansion of the
! argument, `foo' does not expand even though the macro is enabled, since
  it has no following parenthesis [pre-expansion of an argument only uses
  tokens from that argument; it cannot take tokens from whatever follows
! the macro invocation].  This still leaves the argument token `foo'
  eligible for future expansion.  Then, when re-scanning after argument
! replacement, the token `foo' is rejected for expansion, and marked
! ineligible for future expansion, since the macro is now disabled.  It
! is disabled because the replacement list `bar foo' of the macro is
! still on the context stack.
  
     If instead the algorithm looked for an opening parenthesis first and
  then tested whether the macro were disabled it would be subtly wrong.
! In the example above, the replacement list of `foo' would be popped in
! the process of finding the parenthesis, re-enabling `foo' and expanding
  it a second time.
  
  Looking for a function-like macro's opening parenthesis
--- 541,567 ----
  lower context.  This makes backing up by one token easy, but more
  importantly ensures that the macro corresponding to the current context
  is still disabled when we are considering the last token of its
! replacement list for expansion (or indeed expanding it).  As an example,
! which illustrates many of the points above, consider
  
       #define foo(x) bar x
       foo(foo) (2)
  
! which fully expands to 'bar foo (2)'.  During pre-expansion of the
! argument, 'foo' does not expand even though the macro is enabled, since
  it has no following parenthesis [pre-expansion of an argument only uses
  tokens from that argument; it cannot take tokens from whatever follows
! the macro invocation].  This still leaves the argument token 'foo'
  eligible for future expansion.  Then, when re-scanning after argument
! replacement, the token 'foo' is rejected for expansion, and marked
! ineligible for future expansion, since the macro is now disabled.  It is
! disabled because the replacement list 'bar foo' of the macro is still on
! the context stack.
  
     If instead the algorithm looked for an opening parenthesis first and
  then tested whether the macro were disabled it would be subtly wrong.
! In the example above, the replacement list of 'foo' would be popped in
! the process of finding the parenthesis, re-enabling 'foo' and expanding
  it a second time.
  
  Looking for a function-like macro's opening parenthesis
*************** Function-like macros only expand when im
*** 560,577 ****
  parenthesis.  To do this cpplib needs to temporarily disable macros and
  read the next token.  Unfortunately, because of spacing issues (*note
  Token Spacing::), there can be fake padding tokens in-between, and if
! the next real token is not a parenthesis cpplib needs to be able to
! back up that one token as well as retain the information in any
! intervening padding tokens.
  
     Backing up more than one token when macros are involved is not
  permitted by cpplib, because in general it might involve issues like
  restoring popped contexts onto the context stack, which are too hard.
! Instead, searching for the parenthesis is handled by a special
! function, `funlike_invocation_p', which remembers padding information
! as it reads tokens.  If the next real token is not an opening
! parenthesis, it backs up that one token, and then pushes an extra
! context just containing the padding information if necessary.
  
  Marking tokens ineligible for future expansion
  ==============================================
--- 571,588 ----
  parenthesis.  To do this cpplib needs to temporarily disable macros and
  read the next token.  Unfortunately, because of spacing issues (*note
  Token Spacing::), there can be fake padding tokens in-between, and if
! the next real token is not a parenthesis cpplib needs to be able to back
! up that one token as well as retain the information in any intervening
! padding tokens.
  
     Backing up more than one token when macros are involved is not
  permitted by cpplib, because in general it might involve issues like
  restoring popped contexts onto the context stack, which are too hard.
! Instead, searching for the parenthesis is handled by a special function,
! 'funlike_invocation_p', which remembers padding information as it reads
! tokens.  If the next real token is not an opening parenthesis, it backs
! up that one token, and then pushes an extra context just containing the
! padding information if necessary.
  
  Marking tokens ineligible for future expansion
  ==============================================
*************** Marking tokens ineligible for future exp
*** 579,590 ****
  As discussed above, cpplib needs a way of marking tokens as
  unexpandable.  Since the tokens cpplib handles are read-only once they
  have been lexed, it instead makes a copy of the token and adds the flag
! `NO_EXPAND' to the copy.
  
     For efficiency and to simplify memory management by avoiding having
  to remember to free these tokens, they are allocated as temporary tokens
  from the lexer's current token run (*note Lexing a line::) using the
! function `_cpp_temp_token'.  The tokens are then re-used once the
  current line of tokens has been read in.
  
     This might sound unsafe.  However, tokens runs are not re-used at the
--- 590,601 ----
  As discussed above, cpplib needs a way of marking tokens as
  unexpandable.  Since the tokens cpplib handles are read-only once they
  have been lexed, it instead makes a copy of the token and adds the flag
! 'NO_EXPAND' to the copy.
  
     For efficiency and to simplify memory management by avoiding having
  to remember to free these tokens, they are allocated as temporary tokens
  from the lexer's current token run (*note Lexing a line::) using the
! function '_cpp_temp_token'.  The tokens are then re-used once the
  current line of tokens has been read in.
  
     This might sound unsafe.  However, tokens runs are not re-used at the
*************** both for aesthetic reasons and because i
*** 619,638 ****
  still try to abuse the preprocessor for things like Fortran source and
  Makefiles.
  
!    For now, just notice that when tokens are added (or removed, as
! shown by the `EMPTY' example) from the original lexed token stream, we
! need to check for accidental token pasting.  We call this "paste
! avoidance".  Token addition and removal can only occur because of macro
! expansion, but accidental pasting can occur in many places: both before
! and after each macro replacement, each argument replacement, and
! additionally each token created by the `#' and `##' operators.
  
!    Look at how the preprocessor gets whitespace output correct
! normally.  The `cpp_token' structure contains a flags byte, and one of
! those flags is `PREV_WHITE'.  This is flagged by the lexer, and
! indicates that the token was preceded by whitespace of some form other
! than a new line.  The stand-alone preprocessor can use this flag to
! decide whether to insert a space between tokens in the output.
  
     Now consider the result of the following macro expansion:
  
--- 630,649 ----
  still try to abuse the preprocessor for things like Fortran source and
  Makefiles.
  
!    For now, just notice that when tokens are added (or removed, as shown
! by the 'EMPTY' example) from the original lexed token stream, we need to
! check for accidental token pasting.  We call this "paste avoidance".
! Token addition and removal can only occur because of macro expansion,
! but accidental pasting can occur in many places: both before and after
! each macro replacement, each argument replacement, and additionally each
! token created by the '#' and '##' operators.
  
!    Look at how the preprocessor gets whitespace output correct normally.
! The 'cpp_token' structure contains a flags byte, and one of those flags
! is 'PREV_WHITE'.  This is flagged by the lexer, and indicates that the
! token was preceded by whitespace of some form other than a new line.
! The stand-alone preprocessor can use this flag to decide whether to
! insert a space between tokens in the output.
  
     Now consider the result of the following macro expansion:
  
*************** decide whether to insert a space between
*** 640,679 ****
       sum = add (1,2, 3);
               ==> sum = 1 + 2 +3;
  
!    The interesting thing here is that the tokens `1' and `2' are output
! with a preceding space, and `3' is output without a preceding space,
! but when lexed none of these tokens had that property.  Careful
! consideration reveals that `1' gets its preceding whitespace from the
! space preceding `add' in the macro invocation, _not_ replacement list.
! `2' gets its whitespace from the space preceding the parameter `y' in
! the macro replacement list, and `3' has no preceding space because
! parameter `z' has none in the replacement list.
  
     Once lexed, tokens are effectively fixed and cannot be altered, since
  pointers to them might be held in many places, in particular by
  in-progress macro expansions.  So instead of modifying the two tokens
! above, the preprocessor inserts a special token, which I call a
! "padding token", into the token stream to indicate that spacing of the
! subsequent token is special.  The preprocessor inserts padding tokens
! in front of every macro expansion and expanded macro argument.  These
! point to a "source token" from which the subsequent real token should
! inherit its spacing.  In the above example, the source tokens are `add'
! in the macro invocation, and `y' and `z' in the macro replacement list,
! respectively.
  
!    It is quite easy to get multiple padding tokens in a row, for
! example if a macro's first replacement token expands straight into
! another macro.
  
       #define foo bar
       #define bar baz
       [foo]
               ==> [baz]
  
!    Here, two padding tokens are generated with sources the `foo' token
! between the brackets, and the `bar' token from foo's replacement list,
! respectively.  Clearly the first padding token is the one to use, so
! the output code should contain a rule that the first padding token in a
  sequence is the one that matters.
  
     But what if a macro expansion is left?  Adjusting the above example
--- 651,689 ----
       sum = add (1,2, 3);
               ==> sum = 1 + 2 +3;
  
!    The interesting thing here is that the tokens '1' and '2' are output
! with a preceding space, and '3' is output without a preceding space, but
! when lexed none of these tokens had that property.  Careful
! consideration reveals that '1' gets its preceding whitespace from the
! space preceding 'add' in the macro invocation, _not_ replacement list.
! '2' gets its whitespace from the space preceding the parameter 'y' in
! the macro replacement list, and '3' has no preceding space because
! parameter 'z' has none in the replacement list.
  
     Once lexed, tokens are effectively fixed and cannot be altered, since
  pointers to them might be held in many places, in particular by
  in-progress macro expansions.  So instead of modifying the two tokens
! above, the preprocessor inserts a special token, which I call a "padding
! token", into the token stream to indicate that spacing of the subsequent
! token is special.  The preprocessor inserts padding tokens in front of
! every macro expansion and expanded macro argument.  These point to a
! "source token" from which the subsequent real token should inherit its
! spacing.  In the above example, the source tokens are 'add' in the macro
! invocation, and 'y' and 'z' in the macro replacement list, respectively.
  
!    It is quite easy to get multiple padding tokens in a row, for example
! if a macro's first replacement token expands straight into another
! macro.
  
       #define foo bar
       #define bar baz
       [foo]
               ==> [baz]
  
!    Here, two padding tokens are generated with sources the 'foo' token
! between the brackets, and the 'bar' token from foo's replacement list,
! respectively.  Clearly the first padding token is the one to use, so the
! output code should contain a rule that the first padding token in a
  sequence is the one that matters.
  
     But what if a macro expansion is left?  Adjusting the above example
*************** slightly:
*** 685,697 ****
       [foo] EMPTY;
               ==> [ baz] ;
  
!    As shown, now there should be a space before `baz' and the semicolon
  in the output.
  
!    The rules we decided above fail for `baz': we generate three padding
! tokens, one per macro invocation, before the token `baz'.  We would
! then have it take its spacing from the first of these, which carries
! source token `foo' with no leading space.
  
     It is vital that cpplib get spacing correct in these examples since
  any of these macro expansions could be stringified, where spacing
--- 695,707 ----
       [foo] EMPTY;
               ==> [ baz] ;
  
!    As shown, now there should be a space before 'baz' and the semicolon
  in the output.
  
!    The rules we decided above fail for 'baz': we generate three padding
! tokens, one per macro invocation, before the token 'baz'.  We would then
! have it take its spacing from the first of these, which carries source
! token 'foo' with no leading space.
  
     It is vital that cpplib get spacing correct in these examples since
  any of these macro expansions could be stringified, where spacing
*************** matters.
*** 699,709 ****
  
     So, this demonstrates that not just entering macro and argument
  expansions, but leaving them requires special handling too.  I made
! cpplib insert a padding token with a `NULL' source token when leaving
  macro expansions, as well as after each replaced argument in a macro's
  replacement list.  It also inserts appropriate padding tokens on either
! side of tokens created by the `#' and `##' operators.  I expanded the
! rule so that, if we see a padding token with a `NULL' source token,
  _and_ that source token has no leading space, then we behave as if we
  have seen no padding tokens at all.  A quick check shows this rule will
  then get the above example correct as well.
--- 709,719 ----
  
     So, this demonstrates that not just entering macro and argument
  expansions, but leaving them requires special handling too.  I made
! cpplib insert a padding token with a 'NULL' source token when leaving
  macro expansions, as well as after each replaced argument in a macro's
  replacement list.  It also inserts appropriate padding tokens on either
! side of tokens created by the '#' and '##' operators.  I expanded the
! rule so that, if we see a padding token with a 'NULL' source token,
  _and_ that source token has no leading space, then we behave as if we
  have seen no padding tokens at all.  A quick check shows this rule will
  then get the above example correct as well.
*************** implementation of paste avoidance easy:
*** 715,721 ****
  preprocessor is fixing up spacing because of padding tokens, and it
  turns out that no space is needed, it has to take the extra step to
  check that a space is not needed after all to avoid an accidental paste.
! The function `cpp_avoid_paste' advises whether a space is required
  between two consecutive tokens.  To avoid excessive spacing, it tries
  hard to only require a space if one is likely to be necessary, but for
  reasons of efficiency it is slightly conservative and might recommend a
--- 725,731 ----
  preprocessor is fixing up spacing because of padding tokens, and it
  turns out that no space is needed, it has to take the extra step to
  check that a space is not needed after all to avoid an accidental paste.
! The function 'cpp_avoid_paste' advises whether a space is required
  between two consecutive tokens.  To avoid excessive spacing, it tries
  hard to only require a space if one is likely to be necessary, but for
  reasons of efficiency it is slightly conservative and might recommend a
*************** There are three reasonable requirements
*** 734,740 ****
  the line number of a token passed to it:
  
     * The source line it was lexed on.
- 
     * The line it is output on.  This can be different to the line it was
       lexed on if, for example, there are intervening escaped newlines or
       C-style comments.  For example:
--- 744,749 ----
*************** the line number of a token passed to it:
*** 749,762 ****
       name, or possibly the line of the closing parenthesis in the case
       of function-like macro expansion.
  
!    The `cpp_token' structure contains `line' and `col' members.  The
  lexer fills these in with the line and column of the first character of
  the token.  Consequently, but maybe unexpectedly, a token from the
  replacement list of a macro expansion carries the location of the token
! within the `#define' directive, because cpplib expands a macro by
  returning pointers to the tokens in its replacement list.  The current
! implementation of cpplib assigns tokens created from built-in macros
! and the `#' and `##' operators the location of the most recently lexed
  token.  This is a because they are allocated from the lexer's token
  runs, and because of the way the diagnostic routines infer the
  appropriate location to report.
--- 758,771 ----
       name, or possibly the line of the closing parenthesis in the case
       of function-like macro expansion.
  
!    The 'cpp_token' structure contains 'line' and 'col' members.  The
  lexer fills these in with the line and column of the first character of
  the token.  Consequently, but maybe unexpectedly, a token from the
  replacement list of a macro expansion carries the location of the token
! within the '#define' directive, because cpplib expands a macro by
  returning pointers to the tokens in its replacement list.  The current
! implementation of cpplib assigns tokens created from built-in macros and
! the '#' and '##' operators the location of the most recently lexed
  token.  This is a because they are allocated from the lexer's token
  runs, and because of the way the diagnostic routines infer the
  appropriate location to report.
*************** line other than the first.
*** 778,787 ****
  
     To solve these issues, cpplib provides a callback that is generated
  whenever it lexes a preprocessing token that starts a new logical line
! other than a directive.  It passes this token (which may be a `CPP_EOF'
  token indicating the end of the translation unit) to the callback
! routine, which can then use the line and column of this token to
! produce correct output.
  
  Representation of line numbers
  ==============================
--- 787,796 ----
  
     To solve these issues, cpplib provides a callback that is generated
  whenever it lexes a preprocessing token that starts a new logical line
! other than a directive.  It passes this token (which may be a 'CPP_EOF'
  token indicating the end of the translation unit) to the callback
! routine, which can then use the line and column of this token to produce
! correct output.
  
  Representation of line numbers
  ==============================
*************** starts counting from one.
*** 801,815 ****
  translation unit.  With some simple infrastructure, it is straight
  forward to map from this to the original source file and line number
  pair, saving space whenever line number information needs to be saved.
! The code the implements this mapping lies in the files `line-map.c' and
! `line-map.h'.
  
     Command-line macros and assertions are implemented by pushing a
! buffer containing the right hand side of an equivalent `#define' or
! `#assert' directive.  Some built-in macros are handled similarly.
! Since these are all processed before the first line of the main input
! file, it will typically have an assigned line closer to twenty than to
! one.
  
  
  File: cppinternals.info,  Node: Guard Macros,  Next: Files,  Prev: Line Numbering,  Up: Top
--- 810,823 ----
  translation unit.  With some simple infrastructure, it is straight
  forward to map from this to the original source file and line number
  pair, saving space whenever line number information needs to be saved.
! The code the implements this mapping lies in the files 'line-map.c' and
! 'line-map.h'.
  
     Command-line macros and assertions are implemented by pushing a
! buffer containing the right hand side of an equivalent '#define' or
! '#assert' directive.  Some built-in macros are handled similarly.  Since
! these are all processed before the first line of the main input file, it
! will typically have an assigned line closer to twenty than to one.
  
  
  File: cppinternals.info,  Node: Guard Macros,  Next: Files,  Prev: Line Numbering,  Up: Top
*************** Header files are often of the form
*** 826,832 ****
  
  to prevent the compiler from processing them more than once.  The
  preprocessor notices such header files, so that if the header file
! appears in a subsequent `#include' directive and `FOO' is defined, then
  it is ignored and it doesn't preprocess or even re-open the file a
  second time.  This is referred to as the "multiple include
  optimization".
--- 834,840 ----
  
  to prevent the compiler from processing them more than once.  The
  preprocessor notices such header files, so that if the header file
! appears in a subsequent '#include' directive and 'FOO' is defined, then
  it is ignored and it doesn't preprocess or even re-open the file a
  second time.  This is referred to as the "multiple include
  optimization".
*************** inclusion would result in no tokens to r
*** 837,848 ****
  directives to process.  Therefore the current implementation imposes
  requirements and makes some allowances as follows:
  
!   1. There must be no tokens outside the controlling `#if'-`#endif'
       pair, but whitespace and comments are permitted.
  
!   2. There must be no directives outside the controlling directive
!      pair, but the "null directive" (a line containing nothing other
!      than a single `#' and possibly whitespace) is permitted.
  
    3. The opening directive must be of the form
  
--- 845,856 ----
  directives to process.  Therefore the current implementation imposes
  requirements and makes some allowances as follows:
  
!   1. There must be no tokens outside the controlling '#if'-'#endif'
       pair, but whitespace and comments are permitted.
  
!   2. There must be no directives outside the controlling directive pair,
!      but the "null directive" (a line containing nothing other than a
!      single '#' and possibly whitespace) is permitted.
  
    3. The opening directive must be of the form
  
*************** requirements and makes some allowances a
*** 852,921 ****
  
            #if !defined FOO     [equivalently, #if !defined(FOO)]
  
!   4. In the second form above, the tokens forming the `#if' expression
       must have come directly from the source file--no macro expansion
       must have been involved.  This is because macro definitions can
!      change, and tracking whether or not a relevant change has been
!      made is not worth the implementation cost.
  
!   5. There can be no `#else' or `#elif' directives at the outer
       conditional block level, because they would probably contain
       something of interest to a subsequent pass.
  
     First, when pushing a new file on the buffer stack,
! `_stack_include_file' sets the controlling macro `mi_cmacro' to `NULL',
! and sets `mi_valid' to `true'.  This indicates that the preprocessor
! has not yet encountered anything that would invalidate the
! multiple-include optimization.  As described in the next few
! paragraphs, these two variables having these values effectively
! indicates top-of-file.
  
     When about to return a token that is not part of a directive,
! `_cpp_lex_token' sets `mi_valid' to `false'.  This enforces the
  constraint that tokens outside the controlling conditional block
  invalidate the optimization.
  
!    The `do_if', when appropriate, and `do_ifndef' directive handlers
! pass the controlling macro to the function `push_conditional'.  cpplib
  maintains a stack of nested conditional blocks, and after processing
! every opening conditional this function pushes an `if_stack' structure
  onto the stack.  In this structure it records the controlling macro for
  the block, provided there is one and we're at top-of-file (as described
! above).  If an `#elif' or `#else' directive is encountered, the
! controlling macro for that block is cleared to `NULL'.  Otherwise, it
! survives until the `#endif' closing the block, upon which `do_endif'
! sets `mi_valid' to true and stores the controlling macro in `mi_cmacro'.
  
!    `_cpp_handle_directive' clears `mi_valid' when processing any
  directive other than an opening conditional and the null directive.
  With this, and requiring top-of-file to record a controlling macro, and
! no `#else' or `#elif' for it to survive and be copied to `mi_cmacro' by
! `do_endif', we have enforced the absence of directives outside the main
  conditional block for the optimization to be on.
  
!    Note that whilst we are inside the conditional block, `mi_valid' is
! likely to be reset to `false', but this does not matter since the
! closing `#endif' restores it to `true' if appropriate.
  
!    Finally, since `_cpp_lex_direct' pops the file off the buffer stack
! at `EOF' without returning a token, if the `#endif' directive was not
! followed by any tokens, `mi_valid' is `true' and `_cpp_pop_file_buffer'
  remembers the controlling macro associated with the file.  Subsequent
! calls to `stack_include_file' result in no buffer being pushed if the
  controlling macro is defined, effecting the optimization.
  
     A quick word on how we handle the
  
       #if !defined FOO
  
! case.  `_cpp_parse_expr' and `parse_defined' take steps to see whether
! the three stages `!', `defined-expression' and `end-of-directive' occur
! in order in a `#if' expression.  If so, they return the guard macro to
! `do_if' in the variable `mi_ind_cmacro', and otherwise set it to `NULL'.
! `enter_macro_context' sets `mi_valid' to false, so if a macro was
! expanded whilst parsing any part of the expression, then the
! top-of-file test in `push_conditional' fails and the optimization is
! turned off.
  
  
  File: cppinternals.info,  Node: Files,  Next: Concept Index,  Prev: Guard Macros,  Up: Top
--- 860,927 ----
  
            #if !defined FOO     [equivalently, #if !defined(FOO)]
  
!   4. In the second form above, the tokens forming the '#if' expression
       must have come directly from the source file--no macro expansion
       must have been involved.  This is because macro definitions can
!      change, and tracking whether or not a relevant change has been made
!      is not worth the implementation cost.
  
!   5. There can be no '#else' or '#elif' directives at the outer
       conditional block level, because they would probably contain
       something of interest to a subsequent pass.
  
     First, when pushing a new file on the buffer stack,
! '_stack_include_file' sets the controlling macro 'mi_cmacro' to 'NULL',
! and sets 'mi_valid' to 'true'.  This indicates that the preprocessor has
! not yet encountered anything that would invalidate the multiple-include
! optimization.  As described in the next few paragraphs, these two
! variables having these values effectively indicates top-of-file.
  
     When about to return a token that is not part of a directive,
! '_cpp_lex_token' sets 'mi_valid' to 'false'.  This enforces the
  constraint that tokens outside the controlling conditional block
  invalidate the optimization.
  
!    The 'do_if', when appropriate, and 'do_ifndef' directive handlers
! pass the controlling macro to the function 'push_conditional'.  cpplib
  maintains a stack of nested conditional blocks, and after processing
! every opening conditional this function pushes an 'if_stack' structure
  onto the stack.  In this structure it records the controlling macro for
  the block, provided there is one and we're at top-of-file (as described
! above).  If an '#elif' or '#else' directive is encountered, the
! controlling macro for that block is cleared to 'NULL'.  Otherwise, it
! survives until the '#endif' closing the block, upon which 'do_endif'
! sets 'mi_valid' to true and stores the controlling macro in 'mi_cmacro'.
  
!    '_cpp_handle_directive' clears 'mi_valid' when processing any
  directive other than an opening conditional and the null directive.
  With this, and requiring top-of-file to record a controlling macro, and
! no '#else' or '#elif' for it to survive and be copied to 'mi_cmacro' by
! 'do_endif', we have enforced the absence of directives outside the main
  conditional block for the optimization to be on.
  
!    Note that whilst we are inside the conditional block, 'mi_valid' is
! likely to be reset to 'false', but this does not matter since the
! closing '#endif' restores it to 'true' if appropriate.
  
!    Finally, since '_cpp_lex_direct' pops the file off the buffer stack
! at 'EOF' without returning a token, if the '#endif' directive was not
! followed by any tokens, 'mi_valid' is 'true' and '_cpp_pop_file_buffer'
  remembers the controlling macro associated with the file.  Subsequent
! calls to 'stack_include_file' result in no buffer being pushed if the
  controlling macro is defined, effecting the optimization.
  
     A quick word on how we handle the
  
       #if !defined FOO
  
! case.  '_cpp_parse_expr' and 'parse_defined' take steps to see whether
! the three stages '!', 'defined-expression' and 'end-of-directive' occur
! in order in a '#if' expression.  If so, they return the guard macro to
! 'do_if' in the variable 'mi_ind_cmacro', and otherwise set it to 'NULL'.
! 'enter_macro_context' sets 'mi_valid' to false, so if a macro was
! expanded whilst parsing any part of the expression, then the top-of-file
! test in 'push_conditional' fails and the optimization is turned off.
  
  
  File: cppinternals.info,  Node: Files,  Next: Concept Index,  Prev: Guard Macros,  Up: Top
*************** File Handling
*** 924,936 ****
  *************
  
  Fairly obviously, the file handling code of cpplib resides in the file
! `files.c'.  It takes care of the details of file searching, opening,
  reading and caching, for both the main source file and all the headers
  it recursively includes.
  
     The basic strategy is to minimize the number of system calls.  On
! many systems, the basic `open ()' and `fstat ()' system calls can be
! quite expensive.  For every `#include'-d file, we need to try all the
  directories in the search path until we find a match.  Some projects,
  such as glibc, pass twenty or thirty include paths on the command line,
  so this can rapidly become time consuming.
--- 930,942 ----
  *************
  
  Fairly obviously, the file handling code of cpplib resides in the file
! 'files.c'.  It takes care of the details of file searching, opening,
  reading and caching, for both the main source file and all the headers
  it recursively includes.
  
     The basic strategy is to minimize the number of system calls.  On
! many systems, the basic 'open ()' and 'fstat ()' system calls can be
! quite expensive.  For every '#include'-d file, we need to try all the
  directories in the search path until we find a match.  Some projects,
  such as glibc, pass twenty or thirty include paths on the command line,
  so this can rapidly become time consuming.
*************** repeating the filesystem queries whilst
*** 942,986 ****
  
     For each file we try to open, we store the constructed path in a
  splay tree.  This path first undergoes simplification by the function
! `_cpp_simplify_pathname'.  For example, `/usr/include/bits/../foo.h' is
! simplified to `/usr/include/foo.h' before we enter it in the splay tree
! and try to `open ()' the file.  CPP will then find subsequent uses of
! `foo.h', even as `/usr/include/foo.h', in the splay tree and save
! system calls.
  
!    Further, it is likely the file contents have also been cached,
! saving a `read ()' system call.  We don't bother caching the contents of
! header files that are re-inclusion protected, and whose re-inclusion
! macro is defined when we leave the header file for the first time.  If
! the host supports it, we try to map suitably large files into memory,
! rather than reading them in directly.
  
     The include paths are internally stored on a null-terminated
! singly-linked list, starting with the `"header.h"' directory search
! chain, which then links into the `<header.h>' directory chain.
  
!    Files included with the `<foo.h>' syntax start the lookup directly
! in the second half of this chain.  However, files included with the
! `"foo.h"' syntax start at the beginning of the chain, but with one
! extra directory prepended.  This is the directory of the current file;
! the one containing the `#include' directive.  Prepending this directory
! on a per-file basis is handled by the function `search_from'.
  
     Note that a header included with a directory component, such as
! `#include "mydir/foo.h"' and opened as
! `/usr/local/include/mydir/foo.h', will have the complete path minus the
! basename `foo.h' as the current directory.
  
     Enough information is stored in the splay tree that CPP can
  immediately tell whether it can skip the header file because of the
! multiple include optimization, whether the file didn't exist or
! couldn't be opened for some reason, or whether the header was flagged
! not to be re-used, as it is with the obsolete `#import' directive.
  
     For the benefit of MS-DOS filesystems with an 8.3 filename
  limitation, CPP offers the ability to treat various include file names
  as aliases for the real header files with shorter names.  The map from
! one to the other is found in a special file called `header.gcc', stored
  in the command line (or system) include directories to which the mapping
  applies.  This may be higher up the directory tree than the full path to
  the file minus the base name.
--- 948,992 ----
  
     For each file we try to open, we store the constructed path in a
  splay tree.  This path first undergoes simplification by the function
! '_cpp_simplify_pathname'.  For example, '/usr/include/bits/../foo.h' is
! simplified to '/usr/include/foo.h' before we enter it in the splay tree
! and try to 'open ()' the file.  CPP will then find subsequent uses of
! 'foo.h', even as '/usr/include/foo.h', in the splay tree and save system
! calls.
  
!    Further, it is likely the file contents have also been cached, saving
! a 'read ()' system call.  We don't bother caching the contents of header
! files that are re-inclusion protected, and whose re-inclusion macro is
! defined when we leave the header file for the first time.  If the host
! supports it, we try to map suitably large files into memory, rather than
! reading them in directly.
  
     The include paths are internally stored on a null-terminated
! singly-linked list, starting with the '"header.h"' directory search
! chain, which then links into the '<header.h>' directory chain.
  
!    Files included with the '<foo.h>' syntax start the lookup directly in
! the second half of this chain.  However, files included with the
! '"foo.h"' syntax start at the beginning of the chain, but with one extra
! directory prepended.  This is the directory of the current file; the one
! containing the '#include' directive.  Prepending this directory on a
! per-file basis is handled by the function 'search_from'.
  
     Note that a header included with a directory component, such as
! '#include "mydir/foo.h"' and opened as '/usr/local/include/mydir/foo.h',
! will have the complete path minus the basename 'foo.h' as the current
! directory.
  
     Enough information is stored in the splay tree that CPP can
  immediately tell whether it can skip the header file because of the
! multiple include optimization, whether the file didn't exist or couldn't
! be opened for some reason, or whether the header was flagged not to be
! re-used, as it is with the obsolete '#import' directive.
  
     For the benefit of MS-DOS filesystems with an 8.3 filename
  limitation, CPP offers the ability to treat various include file names
  as aliases for the real header files with shorter names.  The map from
! one to the other is found in a special file called 'header.gcc', stored
  in the command line (or system) include directories to which the mapping
  applies.  This may be higher up the directory tree than the full path to
  the file minus the base name.
*************** Concept Index
*** 996,1002 ****
  
  * assertions:                            Hash Nodes.          (line   6)
  * controlling macros:                    Guard Macros.        (line   6)
! * escaped newlines:                      Lexer.               (line   6)
  * files:                                 Files.               (line   6)
  * guard macros:                          Guard Macros.        (line   6)
  * hash table:                            Hash Nodes.          (line   6)
--- 1002,1008 ----
  
  * assertions:                            Hash Nodes.          (line   6)
  * controlling macros:                    Guard Macros.        (line   6)
! * escaped newlines:                      Lexer.               (line   5)
  * files:                                 Files.               (line   6)
  * guard macros:                          Guard Macros.        (line   6)
  * hash table:                            Hash Nodes.          (line   6)
*************** Concept Index
*** 1004,1010 ****
  * identifiers:                           Hash Nodes.          (line   6)
  * interface:                             Conventions.         (line   6)
  * lexer:                                 Lexer.               (line   6)
! * line numbers:                          Line Numbering.      (line   6)
  * macro expansion:                       Macro Expansion.     (line   6)
  * macro representation (internal):       Macro Expansion.     (line  19)
  * macros:                                Hash Nodes.          (line   6)
--- 1010,1016 ----
  * identifiers:                           Hash Nodes.          (line   6)
  * interface:                             Conventions.         (line   6)
  * lexer:                                 Lexer.               (line   6)
! * line numbers:                          Line Numbering.      (line   5)
  * macro expansion:                       Macro Expansion.     (line   6)
  * macro representation (internal):       Macro Expansion.     (line  19)
  * macros:                                Hash Nodes.          (line   6)
*************** Concept Index
*** 1013,1035 ****
  * newlines:                              Lexer.               (line   6)
  * paste avoidance:                       Token Spacing.       (line   6)
  * spacing:                               Token Spacing.       (line   6)
! * token run:                             Lexer.               (line 192)
  * token spacing:                         Token Spacing.       (line   6)
  
  
  
  Tag Table:
! Node: Top958
! Node: Conventions2643
! Node: Lexer3585
! Ref: Invalid identifiers11498
! Ref: Lexing a line13447
! Node: Hash Nodes18220
! Node: Macro Expansion21099
! Node: Token Spacing30046
! Node: Line Numbering35906
! Node: Guard Macros39991
! Node: Files44782
! Node: Concept Index48248
  
  End Tag Table
--- 1019,1041 ----
  * newlines:                              Lexer.               (line   6)
  * paste avoidance:                       Token Spacing.       (line   6)
  * spacing:                               Token Spacing.       (line   6)
! * token run:                             Lexer.               (line 191)
  * token spacing:                         Token Spacing.       (line   6)
  
  
  
  Tag Table:
! Node: Top905
! Node: Conventions2743
! Node: Lexer3685
! Ref: Invalid identifiers11600
! Ref: Lexing a line13550
! Node: Hash Nodes18323
! Node: Macro Expansion21202
! Node: Token Spacing30150
! Node: Line Numbering36007
! Node: Guard Macros40092
! Node: Files44883
! Node: Concept Index48349
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/doc/extend.texi gcc-6.5.0/gcc/doc/extend.texi
*** gcc-6.4.0/gcc/doc/extend.texi	Wed Apr 12 13:37:30 2017
--- gcc-6.5.0/gcc/doc/extend.texi	Mon Apr 16 19:00:53 2018
***************
*** 1,4 ****
! @c Copyright (C) 1988-2016 Free Software Foundation, Inc.
  
  @c This is part of the GCC manual.
  @c For copying conditions, see the file gcc.texi.
--- 1,4 ----
! @c Copyright (C) 1988-2018 Free Software Foundation, Inc.
  
  @c This is part of the GCC manual.
  @c For copying conditions, see the file gcc.texi.
*************** Specify which floating-point unit to use
*** 5419,5424 ****
--- 5419,5443 ----
  @code{target("fpmath=sse,387")} option as
  @code{target("fpmath=sse+387")} because the comma would separate
  different options.
+ 
+ @item indirect_branch("@var{choice}")
+ @cindex @code{indirect_branch} function attribute, x86
+ On x86 targets, the @code{indirect_branch} attribute causes the compiler
+ to convert indirect call and jump with @var{choice}.  @samp{keep}
+ keeps indirect call and jump unmodified.  @samp{thunk} converts indirect
+ call and jump to call and return thunk.  @samp{thunk-inline} converts
+ indirect call and jump to inlined call and return thunk.
+ @samp{thunk-extern} converts indirect call and jump to external call
+ and return thunk provided in a separate object file.
+ 
+ @item function_return("@var{choice}")
+ @cindex @code{function_return} function attribute, x86
+ On x86 targets, the @code{function_return} attribute causes the compiler
+ to convert function return with @var{choice}.  @samp{keep} keeps function
+ return unmodified.  @samp{thunk} converts function return to call and
+ return thunk.  @samp{thunk-inline} converts function return to inlined
+ call and return thunk.  @samp{thunk-extern} converts function return to
+ external call and return thunk provided in a separate object file.
  @end table
  
  On the x86, the inliner does not inline a
*************** The table below shows the list of suppor
*** 8492,8497 ****
--- 8511,8519 ----
  @tab @code{2}
  @end multitable
  
+ @code{V} is a special modifier which prints the name of the full integer
+ register without @code{%}.
+ 
  @anchor{x86floatingpointasmoperands}
  @subsubsection x86 Floating-Point @code{asm} Operands
  
*************** This function is a @code{nop} on the Pow
*** 13667,13676 ****
  to maintain API compatibility with the x86 builtins.
  @end deftypefn
  
  @deftypefn {Built-in Function} int __builtin_cpu_is (const char *@var{cpuname})
  This function returns a value of @code{1} if the run-time CPU is of type
! @var{cpuname} and returns @code{0} otherwise. The following CPU names can be
! detected:
  
  @table @samp
  @item power9
--- 13689,13713 ----
  to maintain API compatibility with the x86 builtins.
  @end deftypefn
  
+ @deftypefn {Built-in Function} void __builtin_cpu_init (void)
+ This function is a @code{nop} on the PowerPC platform and is included solely
+ to maintain API compatibility with the x86 builtins.
+ @end deftypefn
+ 
  @deftypefn {Built-in Function} int __builtin_cpu_is (const char *@var{cpuname})
  This function returns a value of @code{1} if the run-time CPU is of type
! @var{cpuname} and returns @code{0} otherwise
! 
! The @code{__builtin_cpu_is} function requires GLIBC 2.23 or newer
! which exports the hardware capability bits.  GCC defines the macro
! @code{__BUILTIN_CPU_SUPPORTS__} if the @code{__builtin_cpu_supports}
! built-in function is fully supported.
! 
! If GCC was configured to use a GLIBC before 2.23, the built-in
! function @code{__builtin_cpu_is} always returns a 0 and the compiler
! issues a warning.
! 
! The following CPU names can be detected:
  
  @table @samp
  @item power9
*************** IBM PowerPC Cell Broadband Engine Archit
*** 13707,13726 ****
  
  Here is an example:
  @smallexample
! if (__builtin_cpu_is ("power8"))
!   @{
!      do_power8 (); // POWER8 specific implementation.
!   @}
! else
!   @{
!      do_generic (); // Generic implementation.
!   @}
  @end smallexample
  @end deftypefn
  
  @deftypefn {Built-in Function} int __builtin_cpu_supports (const char *@var{feature})
  This function returns a value of @code{1} if the run-time CPU supports the HWCAP
! feature @var{feature} and returns @code{0} otherwise. The following features can be
  detected:
  
  @table @samp
--- 13744,13776 ----
  
  Here is an example:
  @smallexample
! #ifdef __BUILTIN_CPU_SUPPORTS__
!   if (__builtin_cpu_is ("power8"))
!     @{
!        do_power8 (); // POWER8 specific implementation.
!     @}
!   else
! #endif
!     @{
!        do_generic (); // Generic implementation.
!     @}
  @end smallexample
  @end deftypefn
  
  @deftypefn {Built-in Function} int __builtin_cpu_supports (const char *@var{feature})
  This function returns a value of @code{1} if the run-time CPU supports the HWCAP
! feature @var{feature} and returns @code{0} otherwise.
! 
! The @code{__builtin_cpu_supports} function requires GLIBC 2.23 or
! newer which exports the hardware capability bits.  GCC defines the
! macro @code{__BUILTIN_CPU_SUPPORTS__} if the
! @code{__builtin_cpu_supports} built-in function is fully supported.
! 
! If GCC was configured to use a GLIBC before 2.23, the built-in
! function @code{__builtin_cpu_suports} always returns a 0 and the
! compiler issues a warning.
! 
! The following features can be
  detected:
  
  @table @samp
*************** CPU supports the vector-scalar extension
*** 13804,13817 ****
  
  Here is an example:
  @smallexample
! if (__builtin_cpu_supports ("fpu"))
!   @{
!      asm("fadd %0,%1,%2" : "=d"(dst) : "d"(src1), "d"(src2));
!   @}
! else
!   @{
!      dst = __fadd (src1, src2); // Software FP addition function.
!   @}
  @end smallexample
  @end deftypefn
  
--- 13854,13869 ----
  
  Here is an example:
  @smallexample
! #ifdef __BUILTIN_CPU_SUPPORTS__
!   if (__builtin_cpu_supports ("fpu"))
!     @{
!        asm("fadd %0,%1,%2" : "=d"(dst) : "d"(src1), "d"(src2));
!     @}
!   else
! #endif
!     @{
!        dst = __fadd (src1, src2); // Software FP addition function.
!     @}
  @end smallexample
  @end deftypefn
  
*************** or @option{-mpopcntd}):
*** 13885,13905 ****
  @smallexample
  long __builtin_bpermd (long, long);
  int __builtin_divwe (int, int);
- int __builtin_divweo (int, int);
  unsigned int __builtin_divweu (unsigned int, unsigned int);
- unsigned int __builtin_divweuo (unsigned int, unsigned int);
  long __builtin_divde (long, long);
- long __builtin_divdeo (long, long);
  unsigned long __builtin_divdeu (unsigned long, unsigned long);
- unsigned long __builtin_divdeuo (unsigned long, unsigned long);
  unsigned int cdtbcd (unsigned int);
  unsigned int cbcdtd (unsigned int);
  unsigned int addg6s (unsigned int, unsigned int);
  @end smallexample
  
! The @code{__builtin_divde}, @code{__builtin_divdeo},
! @code{__builtin_divdeu}, @code{__builtin_divdeou} functions require a
! 64-bit environment support ISA 2.06 or later.
  
  The following built-in functions are available for the PowerPC family
  of processors, starting with ISA 3.0 or later (@option{-mcpu=power9}):
--- 13937,13952 ----
  @smallexample
  long __builtin_bpermd (long, long);
  int __builtin_divwe (int, int);
  unsigned int __builtin_divweu (unsigned int, unsigned int);
  long __builtin_divde (long, long);
  unsigned long __builtin_divdeu (unsigned long, unsigned long);
  unsigned int cdtbcd (unsigned int);
  unsigned int cbcdtd (unsigned int);
  unsigned int addg6s (unsigned int, unsigned int);
  @end smallexample
  
! The @code{__builtin_divde} and @code{__builtin_divdeu} functions
! require a 64-bit environment supporting ISA 2.06 or later.
  
  The following built-in functions are available for the PowerPC family
  of processors, starting with ISA 3.0 or later (@option{-mcpu=power9}):
*************** AMD Family 15h Bulldozer version 4.
*** 17741,17748 ****
  @item btver2
  AMD Family 16h CPU.
  
! @item znver1
  AMD Family 17h CPU.
  @end table
  
  Here is an example:
--- 17788,17798 ----
  @item btver2
  AMD Family 16h CPU.
  
! @item amdfam17h
  AMD Family 17h CPU.
+ 
+ @item znver1
+ AMD Family 17h Zen version 1.
  @end table
  
  Here is an example:
*************** unsigned long long _pext_u64 (unsigned l
*** 18901,18907 ****
  The following built-in functions are available when @option{-mlzcnt} is used.
  All of them generate the machine instruction that is part of the name.
  @smallexample
! unsigned short __builtin_ia32_lzcnt_16(unsigned short);
  unsigned int __builtin_ia32_lzcnt_u32(unsigned int);
  unsigned long long __builtin_ia32_lzcnt_u64 (unsigned long long);
  @end smallexample
--- 18951,18957 ----
  The following built-in functions are available when @option{-mlzcnt} is used.
  All of them generate the machine instruction that is part of the name.
  @smallexample
! unsigned short __builtin_ia32_lzcnt_u16(unsigned short);
  unsigned int __builtin_ia32_lzcnt_u32(unsigned int);
  unsigned long long __builtin_ia32_lzcnt_u64 (unsigned long long);
  @end smallexample
diff -Nrcpad gcc-6.4.0/gcc/doc/fsf-funding.7 gcc-6.5.0/gcc/doc/fsf-funding.7
*** gcc-6.4.0/gcc/doc/fsf-funding.7	Tue Jul  4 07:37:47 2017
--- gcc-6.5.0/gcc/doc/fsf-funding.7	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "FSF-FUNDING 7"
! .TH FSF-FUNDING 7 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "FSF-FUNDING 7"
! .TH FSF-FUNDING 7 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/g++.1 gcc-6.5.0/gcc/doc/g++.1
*** gcc-6.4.0/gcc/doc/g++.1	Tue Jul  4 09:27:49 2017
--- gcc-6.5.0/gcc/doc/g++.1	Fri Oct 26 10:07:27 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCC 1"
! .TH GCC 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCC 1"
! .TH GCC 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** in the following sections.
*** 649,655 ****
  \&\fI\s-1AVR\s0 Options\fR
  \&\fB\-mmcu=\fR\fImcu\fR \fB\-maccumulate\-args \-mbranch\-cost=\fR\fIcost\fR 
  \&\fB\-mcall\-prologues \-mint8 \-mn_flash=\fR\fIsize\fR \fB\-mno\-interrupts 
! \&\-mrelax \-mrmw \-mstrict\-X \-mtiny\-stack \-nodevicelib \-Waddr\-space\-convert\fR
  .Sp
  \&\fIBlackfin Options\fR
  \&\fB\-mcpu=\fR\fIcpu\fR[\fB\-\fR\fIsirevision\fR] 
--- 645,652 ----
  \&\fI\s-1AVR\s0 Options\fR
  \&\fB\-mmcu=\fR\fImcu\fR \fB\-maccumulate\-args \-mbranch\-cost=\fR\fIcost\fR 
  \&\fB\-mcall\-prologues \-mint8 \-mn_flash=\fR\fIsize\fR \fB\-mno\-interrupts 
! \&\-mrelax \-mrmw \-mstrict\-X \-mtiny\-stack \-nodevicelib \-Waddr\-space\-convert 
! \&\-Wmisspelled\-isr\fR
  .Sp
  \&\fIBlackfin Options\fR
  \&\fB\-mcpu=\fR\fIcpu\fR[\fB\-\fR\fIsirevision\fR] 
*************** in the following sections.
*** 753,759 ****
  .Sp
  \&\fI\s-1HPPA\s0 Options\fR
  \&\fB\-march=\fR\fIarchitecture-type\fR 
! \&\fB\-mdisable\-fpregs  \-mdisable\-indexing 
  \&\-mfast\-indirect\-calls  \-mgas  \-mgnu\-ld   \-mhp\-ld 
  \&\-mfixed\-range=\fR\fIregister-range\fR 
  \&\fB\-mjump\-in\-delay \-mlinker\-opt \-mlong\-calls 
--- 750,756 ----
  .Sp
  \&\fI\s-1HPPA\s0 Options\fR
  \&\fB\-march=\fR\fIarchitecture-type\fR 
! \&\fB\-mcaller\-copies  \-mdisable\-fpregs  \-mdisable\-indexing 
  \&\-mfast\-indirect\-calls  \-mgas  \-mgnu\-ld   \-mhp\-ld 
  \&\-mfixed\-range=\fR\fIregister-range\fR 
  \&\fB\-mjump\-in\-delay \-mlinker\-opt \-mlong\-calls 
*************** See \s-1RS/6000\s0 and PowerPC Options.
*** 1001,1007 ****
  \&\-mfloat\-gprs=yes  \-mfloat\-gprs=no \-mfloat\-gprs=single \-mfloat\-gprs=double 
  \&\-mprototype  \-mno\-prototype 
  \&\-msim  \-mmvme  \-mads  \-myellowknife  \-memb  \-msdata 
! \&\-msdata=\fR\fIopt\fR  \fB\-mvxworks  \-G\fR \fInum\fR  \fB\-pthread 
  \&\-mrecip \-mrecip=\fR\fIopt\fR \fB\-mno\-recip \-mrecip\-precision 
  \&\-mno\-recip\-precision 
  \&\-mveclibabi=\fR\fItype\fR \fB\-mfriz \-mno\-friz 
--- 998,1004 ----
  \&\-mfloat\-gprs=yes  \-mfloat\-gprs=no \-mfloat\-gprs=single \-mfloat\-gprs=double 
  \&\-mprototype  \-mno\-prototype 
  \&\-msim  \-mmvme  \-mads  \-myellowknife  \-memb  \-msdata 
! \&\-msdata=\fR\fIopt\fR  \fB\-mreadonly\-in\-sdata  \-mvxworks  \-G\fR \fInum\fR  \fB\-pthread 
  \&\-mrecip \-mrecip=\fR\fIopt\fR \fB\-mno\-recip \-mrecip\-precision 
  \&\-mno\-recip\-precision 
  \&\-mveclibabi=\fR\fItype\fR \fB\-mfriz \-mno\-friz 
*************** See \s-1RS/6000\s0 and PowerPC Options.
*** 1180,1186 ****
  \&\fB\-msse2avx \-mfentry \-mrecord\-mcount \-mnop\-mcount \-m8bit\-idiv 
  \&\-mavx256\-split\-unaligned\-load \-mavx256\-split\-unaligned\-store 
  \&\-malign\-data=\fR\fItype\fR \fB\-mstack\-protector\-guard=\fR\fIguard\fR 
! \&\fB\-mmitigate\-rop\fR
  .Sp
  \&\fIx86 Windows Options\fR
  \&\fB\-mconsole \-mcygwin \-mno\-cygwin \-mdll 
--- 1177,1184 ----
  \&\fB\-msse2avx \-mfentry \-mrecord\-mcount \-mnop\-mcount \-m8bit\-idiv 
  \&\-mavx256\-split\-unaligned\-load \-mavx256\-split\-unaligned\-store 
  \&\-malign\-data=\fR\fItype\fR \fB\-mstack\-protector\-guard=\fR\fIguard\fR 
! \&\fB\-mmitigate\-rop \-mindirect\-branch=\fR\fIchoice\fR 
! \&\fB\-mfunction\-return=\fR\fIchoice\fR \fB\-mindirect\-branch\-register\fR
  .Sp
  \&\fIx86 Windows Options\fR
  \&\fB\-mconsole \-mcygwin \-mno\-cygwin \-mdll 
*************** In C mode, this is equivalent to \fB\-st
*** 1695,1701 ****
  equivalent to \fB\-std=c++98\fR.
  .Sp
  This turns off certain features of \s-1GCC\s0 that are incompatible with \s-1ISO
! C90 \s0(when compiling C code), or of standard \*(C+ (when compiling \*(C+ code),
  such as the \f(CW\*(C`asm\*(C'\fR and \f(CW\*(C`typeof\*(C'\fR keywords, and
  predefined macros such as \f(CW\*(C`unix\*(C'\fR and \f(CW\*(C`vax\*(C'\fR that identify the
  type of system you are using.  It also enables the undesirable and
--- 1693,1699 ----
  equivalent to \fB\-std=c++98\fR.
  .Sp
  This turns off certain features of \s-1GCC\s0 that are incompatible with \s-1ISO
! C90\s0 (when compiling C code), or of standard \*(C+ (when compiling \*(C+ code),
  such as the \f(CW\*(C`asm\*(C'\fR and \f(CW\*(C`typeof\*(C'\fR keywords, and
  predefined macros such as \f(CW\*(C`unix\*(C'\fR and \f(CW\*(C`vax\*(C'\fR that identify the
  type of system you are using.  It also enables the undesirable and
*************** from declaring certain functions or defi
*** 1722,1728 ****
  programs that might use these names for other things.
  .Sp
  Functions that are normally built in but do not have semantics
! defined by \s-1ISO C \s0(such as \f(CW\*(C`alloca\*(C'\fR and \f(CW\*(C`ffs\*(C'\fR) are not built-in
  functions when \fB\-ansi\fR is used.
  .IP "\fB\-std=\fR" 4
  .IX Item "-std="
--- 1720,1726 ----
  programs that might use these names for other things.
  .Sp
  Functions that are normally built in but do not have semantics
! defined by \s-1ISO C\s0 (such as \f(CW\*(C`alloca\*(C'\fR and \f(CW\*(C`ffs\*(C'\fR) are not built-in
  functions when \fB\-ansi\fR is used.
  .IP "\fB\-std=\fR" 4
  .IX Item "-std="
*************** with \s-1ISO C90\s0 are disabled). Same
*** 1772,1778 ****
  .IP "\fBiso9899:199x\fR" 4
  .IX Item "iso9899:199x"
  .PD
! \&\s-1ISO C99. \s0 This standard is substantially completely supported, modulo
  bugs and floating-point issues
  (mainly but not entirely relating to optional C99 features from
  Annexes F and G).  See
--- 1770,1776 ----
  .IP "\fBiso9899:199x\fR" 4
  .IX Item "iso9899:199x"
  .PD
! \&\s-1ISO C99.\s0  This standard is substantially completely supported, modulo
  bugs and floating-point issues
  (mainly but not entirely relating to optional C99 features from
  Annexes F and G).  See
*************** interfaces) and L (Analyzability).  The
*** 1797,1817 ****
  .IP "\fBgnu89\fR" 4
  .IX Item "gnu89"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C90 \s0(including some C99 features).
  .IP "\fBgnu99\fR" 4
  .IX Item "gnu99"
  .PD 0
  .IP "\fBgnu9x\fR" 4
  .IX Item "gnu9x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C99. \s0 The name \fBgnu9x\fR is deprecated.
  .IP "\fBgnu11\fR" 4
  .IX Item "gnu11"
  .PD 0
  .IP "\fBgnu1x\fR" 4
  .IX Item "gnu1x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C11. \s0 This is the default for C code.
  The name \fBgnu1x\fR is deprecated.
  .IP "\fBc++98\fR" 4
  .IX Item "c++98"
--- 1795,1815 ----
  .IP "\fBgnu89\fR" 4
  .IX Item "gnu89"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C90\s0 (including some C99 features).
  .IP "\fBgnu99\fR" 4
  .IX Item "gnu99"
  .PD 0
  .IP "\fBgnu9x\fR" 4
  .IX Item "gnu9x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C99.\s0  The name \fBgnu9x\fR is deprecated.
  .IP "\fBgnu11\fR" 4
  .IX Item "gnu11"
  .PD 0
  .IP "\fBgnu1x\fR" 4
  .IX Item "gnu1x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C11.\s0  This is the default for C code.
  The name \fBgnu1x\fR is deprecated.
  .IP "\fBc++98\fR" 4
  .IX Item "c++98"
*************** relevant for \*(C+ programs.
*** 2150,2156 ****
  Here is a list of options that are \fIonly\fR for compiling \*(C+ programs:
  .IP "\fB\-fabi\-version=\fR\fIn\fR" 4
  .IX Item "-fabi-version=n"
! Use version \fIn\fR of the \*(C+ \s-1ABI. \s0 The default is version 0.
  .Sp
  Version 0 refers to the version conforming most closely to
  the \*(C+ \s-1ABI\s0 specification.  Therefore, the \s-1ABI\s0 obtained using version 0
--- 2148,2154 ----
  Here is a list of options that are \fIonly\fR for compiling \*(C+ programs:
  .IP "\fB\-fabi\-version=\fR\fIn\fR" 4
  .IX Item "-fabi-version=n"
! Use version \fIn\fR of the \*(C+ \s-1ABI.\s0  The default is version 0.
  .Sp
  Version 0 refers to the version conforming most closely to
  the \*(C+ \s-1ABI\s0 specification.  Therefore, the \s-1ABI\s0 obtained using version 0
*************** exhaustion is signalled by throwing \f(C
*** 2226,2232 ****
  .IP "\fB\-fconcepts\fR" 4
  .IX Item "-fconcepts"
  Enable support for the \*(C+ Extensions for Concepts Technical
! Specification, \s-1ISO 19217 \s0(2015), which allows code like
  .Sp
  .Vb 2
  \&        template <class T> concept bool Addable = requires (T t) { t + t; };
--- 2224,2230 ----
  .IP "\fB\-fconcepts\fR" 4
  .IX Item "-fconcepts"
  Enable support for the \*(C+ Extensions for Concepts Technical
! Specification, \s-1ISO 19217\s0 (2015), which allows code like
  .Sp
  .Vb 2
  \&        template <class T> concept bool Addable = requires (T t) { t + t; };
*************** int and getting a pointer to member func
*** 2354,2360 ****
  .IP "\fB\-fno\-nonansi\-builtins\fR" 4
  .IX Item "-fno-nonansi-builtins"
  Disable built-in declarations of functions that are not mandated by
! \&\s-1ANSI/ISO C. \s0 These include \f(CW\*(C`ffs\*(C'\fR, \f(CW\*(C`alloca\*(C'\fR, \f(CW\*(C`_exit\*(C'\fR,
  \&\f(CW\*(C`index\*(C'\fR, \f(CW\*(C`bzero\*(C'\fR, \f(CW\*(C`conjf\*(C'\fR, and other related functions.
  .IP "\fB\-fnothrow\-opt\fR" 4
  .IX Item "-fnothrow-opt"
--- 2352,2358 ----
  .IP "\fB\-fno\-nonansi\-builtins\fR" 4
  .IX Item "-fno-nonansi-builtins"
  Disable built-in declarations of functions that are not mandated by
! \&\s-1ANSI/ISO C.\s0  These include \f(CW\*(C`ffs\*(C'\fR, \f(CW\*(C`alloca\*(C'\fR, \f(CW\*(C`_exit\*(C'\fR,
  \&\f(CW\*(C`index\*(C'\fR, \f(CW\*(C`bzero\*(C'\fR, \f(CW\*(C`conjf\*(C'\fR, and other related functions.
  .IP "\fB\-fnothrow\-opt\fR" 4
  .IX Item "-fnothrow-opt"
*************** are taken in different shared objects.
*** 2469,2475 ****
  The effect of this is that \s-1GCC\s0 may, effectively, mark inline methods with
  \&\f(CW\*(C`_\|_attribute_\|_ ((visibility ("hidden")))\*(C'\fR so that they do not
  appear in the export table of a \s-1DSO\s0 and do not require a \s-1PLT\s0 indirection
! when used within the \s-1DSO. \s0 Enabling this option can have a dramatic effect
  on load and link times of a \s-1DSO\s0 as it massively reduces the size of the
  dynamic export table when the library makes heavy use of templates.
  .Sp
--- 2467,2473 ----
  The effect of this is that \s-1GCC\s0 may, effectively, mark inline methods with
  \&\f(CW\*(C`_\|_attribute_\|_ ((visibility ("hidden")))\*(C'\fR so that they do not
  appear in the export table of a \s-1DSO\s0 and do not require a \s-1PLT\s0 indirection
! when used within the \s-1DSO.\s0  Enabling this option can have a dramatic effect
  on load and link times of a \s-1DSO\s0 as it massively reduces the size of the
  dynamic export table when the library makes heavy use of templates.
  .Sp
*************** have meanings only for \*(C+ programs:
*** 2539,2545 ****
  .IP "\fB\-Wabi\fR (C, Objective-C, \*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wabi (C, Objective-C, and Objective- only)"
  Warn when G++ it generates code that is probably not compatible with
! the vendor-neutral \*(C+ \s-1ABI. \s0 Since G++ now defaults to updating the
  \&\s-1ABI\s0 with each major release, normally \fB\-Wabi\fR will warn only if
  there is a check added later in a release series for an \s-1ABI\s0 issue
  discovered since the initial release.  \fB\-Wabi\fR will warn about
--- 2537,2543 ----
  .IP "\fB\-Wabi\fR (C, Objective-C, \*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wabi (C, Objective-C, and Objective- only)"
  Warn when G++ it generates code that is probably not compatible with
! the vendor-neutral \*(C+ \s-1ABI.\s0  Since G++ now defaults to updating the
  \&\s-1ABI\s0 with each major release, normally \fB\-Wabi\fR will warn only if
  there is a check added later in a release series for an \s-1ABI\s0 issue
  discovered since the initial release.  \fB\-Wabi\fR will warn about
*************** unsignedness, but the standard mandates
*** 2854,2881 ****
  Warn when a primary template declaration is encountered.  Some coding
  rules disallow templates, and this may be used to enforce that rule.
  The warning is inactive inside a system header file, such as the \s-1STL,\s0 so
! one can still use the \s-1STL. \s0 One may also instantiate or specialize
  templates.
  .IP "\fB\-Wmultiple\-inheritance\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wmultiple-inheritance ( and Objective- only)"
  Warn when a class is defined with multiple direct base classes.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL. \s0 One may also define
  classes that indirectly use multiple inheritance.
  .IP "\fB\-Wvirtual\-inheritance\fR" 4
  .IX Item "-Wvirtual-inheritance"
  Warn when a class is defined with a virtual direct base classe.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL. \s0 One may also define
  classes that indirectly use virtual inheritance.
  .IP "\fB\-Wnamespaces\fR" 4
  .IX Item "-Wnamespaces"
  Warn when a namespace definition is opened.  Some coding rules disallow
  namespaces, and this may be used to enforce that rule.  The warning is
  inactive inside a system header file, such as the \s-1STL,\s0 so one can still
! use the \s-1STL. \s0 One may also use using directives and qualified names.
  .IP "\fB\-Wno\-terminate\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wno-terminate ( and Objective- only)"
  Disable the warning about a throw-expression that will immediately
--- 2852,2879 ----
  Warn when a primary template declaration is encountered.  Some coding
  rules disallow templates, and this may be used to enforce that rule.
  The warning is inactive inside a system header file, such as the \s-1STL,\s0 so
! one can still use the \s-1STL.\s0  One may also instantiate or specialize
  templates.
  .IP "\fB\-Wmultiple\-inheritance\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wmultiple-inheritance ( and Objective- only)"
  Warn when a class is defined with multiple direct base classes.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL.\s0  One may also define
  classes that indirectly use multiple inheritance.
  .IP "\fB\-Wvirtual\-inheritance\fR" 4
  .IX Item "-Wvirtual-inheritance"
  Warn when a class is defined with a virtual direct base classe.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL.\s0  One may also define
  classes that indirectly use virtual inheritance.
  .IP "\fB\-Wnamespaces\fR" 4
  .IX Item "-Wnamespaces"
  Warn when a namespace definition is opened.  Some coding rules disallow
  namespaces, and this may be used to enforce that rule.  The warning is
  inactive inside a system header file, such as the \s-1STL,\s0 so one can still
! use the \s-1STL.\s0  One may also use using directives and qualified names.
  .IP "\fB\-Wno\-terminate\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wno-terminate ( and Objective- only)"
  Disable the warning about a throw-expression that will immediately
*************** runtime.  This is the default for most t
*** 2921,2927 ****
  .IP "\fB\-fnext\-runtime\fR" 4
  .IX Item "-fnext-runtime"
  Generate output compatible with the NeXT runtime.  This is the default
! for NeXT-based systems, including Darwin and Mac \s-1OS X. \s0 The macro
  \&\f(CW\*(C`_\|_NEXT_RUNTIME_\|_\*(C'\fR is predefined if (and only if) this option is
  used.
  .IP "\fB\-fno\-nil\-receivers\fR" 4
--- 2919,2925 ----
  .IP "\fB\-fnext\-runtime\fR" 4
  .IX Item "-fnext-runtime"
  Generate output compatible with the NeXT runtime.  This is the default
! for NeXT-based systems, including Darwin and Mac \s-1OS X.\s0  The macro
  \&\f(CW\*(C`_\|_NEXT_RUNTIME_\|_\*(C'\fR is predefined if (and only if) this option is
  used.
  .IP "\fB\-fno\-nil\-receivers\fR" 4
*************** This option is currently supported only
*** 2938,2944 ****
  case, Version 0 is the traditional (32\-bit) \s-1ABI\s0 without support for
  properties and other Objective-C 2.0 additions.  Version 1 is the
  traditional (32\-bit) \s-1ABI\s0 with support for properties and other
! Objective-C 2.0 additions.  Version 2 is the modern (64\-bit) \s-1ABI. \s0 If
  nothing is specified, the default is Version 0 on 32\-bit target
  machines, and Version 2 on 64\-bit target machines.
  .IP "\fB\-fobjc\-call\-cxx\-cdtors\fR" 4
--- 2936,2942 ----
  case, Version 0 is the traditional (32\-bit) \s-1ABI\s0 without support for
  properties and other Objective-C 2.0 additions.  Version 1 is the
  traditional (32\-bit) \s-1ABI\s0 with support for properties and other
! Objective-C 2.0 additions.  Version 2 is the modern (64\-bit) \s-1ABI.\s0  If
  nothing is specified, the default is Version 0 on 32\-bit target
  machines, and Version 2 on 64\-bit target machines.
  .IP "\fB\-fobjc\-call\-cxx\-cdtors\fR" 4
*************** version of the NeXT runtime \s-1ABI,\s0
*** 2996,3002 ****
  .IP "\fB\-fobjc\-std=objc1\fR" 4
  .IX Item "-fobjc-std=objc1"
  Conform to the language syntax of Objective-C 1.0, the language
! recognized by \s-1GCC 4.0. \s0 This only affects the Objective-C additions to
  the C/\*(C+ language; it does not affect conformance to C/\*(C+ standards,
  which is controlled by the separate C/\*(C+ dialect option flags.  When
  this option is used with the Objective-C or Objective\-\*(C+ compiler,
--- 2994,3000 ----
  .IP "\fB\-fobjc\-std=objc1\fR" 4
  .IX Item "-fobjc-std=objc1"
  Conform to the language syntax of Objective-C 1.0, the language
! recognized by \s-1GCC 4.0.\s0  This only affects the Objective-C additions to
  the C/\*(C+ language; it does not affect conformance to C/\*(C+ standards,
  which is controlled by the separate C/\*(C+ dialect option flags.  When
  this option is used with the Objective-C or Objective\-\*(C+ compiler,
*************** warns that an unrecognized option is pre
*** 3296,3302 ****
  .PD
  Issue all the warnings demanded by strict \s-1ISO C\s0 and \s-1ISO \*(C+\s0;
  reject all programs that use forbidden extensions, and some other
! programs that do not follow \s-1ISO C\s0 and \s-1ISO \*(C+. \s0 For \s-1ISO C,\s0 follows the
  version of the \s-1ISO C\s0 standard specified by any \fB\-std\fR option used.
  .Sp
  Valid \s-1ISO C\s0 and \s-1ISO \*(C+\s0 programs should compile properly with or without
--- 3294,3300 ----
  .PD
  Issue all the warnings demanded by strict \s-1ISO C\s0 and \s-1ISO \*(C+\s0;
  reject all programs that use forbidden extensions, and some other
! programs that do not follow \s-1ISO C\s0 and \s-1ISO \*(C+.\s0  For \s-1ISO C,\s0 follows the
  version of the \s-1ISO C\s0 standard specified by any \fB\-std\fR option used.
  .Sp
  Valid \s-1ISO C\s0 and \s-1ISO \*(C+\s0 programs should compile properly with or without
*************** these escape routes; application program
*** 3314,3320 ****
  Some users try to use \fB\-Wpedantic\fR to check programs for strict \s-1ISO
  C\s0 conformance.  They soon find that it does not do quite what they want:
  it finds some non-ISO practices, but not all\-\-\-only those for which
! \&\s-1ISO C \s0\fIrequires\fR a diagnostic, and some others for which
  diagnostics have been added.
  .Sp
  A feature to report any failure to conform to \s-1ISO C\s0 might be useful in
--- 3312,3318 ----
  Some users try to use \fB\-Wpedantic\fR to check programs for strict \s-1ISO
  C\s0 conformance.  They soon find that it does not do quite what they want:
  it finds some non-ISO practices, but not all\-\-\-only those for which
! \&\s-1ISO C\s0 \fIrequires\fR a diagnostic, and some others for which
  diagnostics have been added.
  .Sp
  A feature to report any failure to conform to \s-1ISO C\s0 might be useful in
*************** This warning is enabled by \fB\-Wall\fR
*** 4101,4107 ****
  .IP "\fB\-Wunknown\-pragmas\fR" 4
  .IX Item "-Wunknown-pragmas"
  Warn when a \f(CW\*(C`#pragma\*(C'\fR directive is encountered that is not understood by 
! \&\s-1GCC. \s0 If this command-line option is used, warnings are even issued
  for unknown pragmas in system header files.  This is not the case if
  the warnings are only enabled by the \fB\-Wall\fR command-line option.
  .IP "\fB\-Wno\-pragmas\fR" 4
--- 4099,4105 ----
  .IP "\fB\-Wunknown\-pragmas\fR" 4
  .IX Item "-Wunknown-pragmas"
  Warn when a \f(CW\*(C`#pragma\*(C'\fR directive is encountered that is not understood by 
! \&\s-1GCC.\s0  If this command-line option is used, warnings are even issued
  for unknown pragmas in system header files.  This is not the case if
  the warnings are only enabled by the \fB\-Wall\fR command-line option.
  .IP "\fB\-Wno\-pragmas\fR" 4
*************** probably mistaken.
*** 4405,4411 ****
  .IP "\fB\-Wtraditional\fR (C and Objective-C only)" 4
  .IX Item "-Wtraditional (C and Objective-C only)"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C. \s0 Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and/or problematic constructs that should be avoided.
  .RS 4
  .IP "*" 4
--- 4403,4409 ----
  .IP "\fB\-Wtraditional\fR (C and Objective-C only)" 4
  .IX Item "-Wtraditional (C and Objective-C only)"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C.\s0  Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and/or problematic constructs that should be avoided.
  .RS 4
  .IP "*" 4
*************** except when the same as the default prom
*** 4487,4493 ****
  .IX Item "-Wdeclaration-after-statement (C and Objective-C only)"
  Warn when a declaration is found after a statement in a block.  This
  construct, known from \*(C+, was introduced with \s-1ISO C99\s0 and is by default
! allowed in \s-1GCC. \s0 It is not supported by \s-1ISO C90.  \s0
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
  Warn if an undefined identifier is evaluated in an \f(CW\*(C`#if\*(C'\fR directive.
--- 4485,4491 ----
  .IX Item "-Wdeclaration-after-statement (C and Objective-C only)"
  Warn when a declaration is found after a statement in a block.  This
  construct, known from \*(C+, was introduced with \s-1ISO C99\s0 and is by default
! allowed in \s-1GCC.\s0  It is not supported by \s-1ISO C90.\s0
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
  Warn if an undefined identifier is evaluated in an \f(CW\*(C`#if\*(C'\fR directive.
*************** Warn about \s-1ISO C\s0 constructs that
*** 4659,4670 ****
  .IX Item "-Wc++11-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 1998\s0
  and \s-1ISO \*(C+ 2011,\s0 e.g., identifiers in \s-1ISO \*(C+ 1998\s0 that are keywords
! in \s-1ISO \*(C+ 2011. \s0 This warning turns on \fB\-Wnarrowing\fR and is
  enabled by \fB\-Wall\fR.
  .IP "\fB\-Wc++14\-compat\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wc++14-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 2011\s0
! and \s-1ISO \*(C+ 2014. \s0 This warning is enabled by \fB\-Wall\fR.
  .IP "\fB\-Wcast\-qual\fR" 4
  .IX Item "-Wcast-qual"
  Warn whenever a pointer is cast so as to remove a type qualifier from
--- 4657,4668 ----
  .IX Item "-Wc++11-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 1998\s0
  and \s-1ISO \*(C+ 2011,\s0 e.g., identifiers in \s-1ISO \*(C+ 1998\s0 that are keywords
! in \s-1ISO \*(C+ 2011.\s0  This warning turns on \fB\-Wnarrowing\fR and is
  enabled by \fB\-Wall\fR.
  .IP "\fB\-Wc++14\-compat\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wc++14-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 2011\s0
! and \s-1ISO \*(C+ 2014.\s0  This warning is enabled by \fB\-Wall\fR.
  .IP "\fB\-Wcast\-qual\fR" 4
  .IX Item "-Wcast-qual"
  Warn whenever a pointer is cast so as to remove a type qualifier from
*************** when applied ensure that two sequences t
*** 4997,5003 ****
  the same sequence.  \s-1GCC\s0 can warn you if you are using identifiers that
  have not been normalized; this option controls that warning.
  .Sp
! There are four levels of warning supported by \s-1GCC. \s0 The default is
  \&\fB\-Wnormalized=nfc\fR, which warns about any identifier that is
  not in the \s-1ISO 10646 \*(L"C\*(R"\s0 normalized form, \fI\s-1NFC\s0\fR.  \s-1NFC\s0 is the
  recommended form for most uses.  It is equivalent to
--- 4995,5001 ----
  the same sequence.  \s-1GCC\s0 can warn you if you are using identifiers that
  have not been normalized; this option controls that warning.
  .Sp
! There are four levels of warning supported by \s-1GCC.\s0  The default is
  \&\fB\-Wnormalized=nfc\fR, which warns about any identifier that is
  not in the \s-1ISO 10646 \*(L"C\*(R"\s0 normalized form, \fI\s-1NFC\s0\fR.  \s-1NFC\s0 is the
  recommended form for most uses.  It is equivalent to
*************** recommended form for most uses.  It is e
*** 5006,5013 ****
  Unfortunately, there are some characters allowed in identifiers by
  \&\s-1ISO C\s0 and \s-1ISO \*(C+\s0 that, when turned into \s-1NFC,\s0 are not allowed in 
  identifiers.  That is, there's no way to use these symbols in portable
! \&\s-1ISO C\s0 or \*(C+ and have all your identifiers in \s-1NFC.
! \&\s0\fB\-Wnormalized=id\fR suppresses the warning for these characters.
  It is hoped that future versions of the standards involved will correct
  this, which is why this option is not the default.
  .Sp
--- 5004,5011 ----
  Unfortunately, there are some characters allowed in identifiers by
  \&\s-1ISO C\s0 and \s-1ISO \*(C+\s0 that, when turned into \s-1NFC,\s0 are not allowed in 
  identifiers.  That is, there's no way to use these symbols in portable
! \&\s-1ISO C\s0 or \*(C+ and have all your identifiers in \s-1NFC.\s0
! \&\fB\-Wnormalized=id\fR suppresses the warning for these characters.
  It is hoped that future versions of the standards involved will correct
  this, which is why this option is not the default.
  .Sp
*************** standard's minimum limit, but very porta
*** 5226,5232 ****
  using longer strings.
  .Sp
  The limit applies \fIafter\fR string constant concatenation, and does
! not count the trailing \s-1NUL. \s0 In C90, the limit was 509 characters; in
  C99, it was raised to 4095.  \*(C+98 does not specify a normative
  minimum maximum, so we do not diagnose overlength strings in \*(C+.
  .Sp
--- 5224,5230 ----
  using longer strings.
  .Sp
  The limit applies \fIafter\fR string constant concatenation, and does
! not count the trailing \s-1NUL.\s0  In C90, the limit was 509 characters; in
  C99, it was raised to 4095.  \*(C+98 does not specify a normative
  minimum maximum, so we do not diagnose overlength strings in \*(C+.
  .Sp
*************** to generate the extra information, use \
*** 5283,5289 ****
  \&\fB\-gxcoff+\fR, \fB\-gxcoff\fR, or \fB\-gvms\fR (see below).
  .IP "\fB\-ggdb\fR" 4
  .IX Item "-ggdb"
! Produce debugging information for use by \s-1GDB. \s0 This means to use the
  most expressive format available (\s-1DWARF,\s0 stabs, or the native format
  if neither of those are supported), including \s-1GDB\s0 extensions if at all
  possible.
--- 5281,5287 ----
  \&\fB\-gxcoff+\fR, \fB\-gxcoff\fR, or \fB\-gvms\fR (see below).
  .IP "\fB\-ggdb\fR" 4
  .IX Item "-ggdb"
! Produce debugging information for use by \s-1GDB.\s0  This means to use the
  most expressive format available (\s-1DWARF,\s0 stabs, or the native format
  if neither of those are supported), including \s-1GDB\s0 extensions if at all
  possible.
*************** be useful, this option requires a debugg
*** 5426,5432 ****
  files.
  .IP "\fB\-gpubnames\fR" 4
  .IX Item "-gpubnames"
! Generate \s-1DWARF \s0\f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections.
  .IP "\fB\-ggnu\-pubnames\fR" 4
  .IX Item "-ggnu-pubnames"
  Generate \f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections in a format
--- 5424,5430 ----
  files.
  .IP "\fB\-gpubnames\fR" 4
  .IX Item "-gpubnames"
! Generate \s-1DWARF\s0 \f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections.
  .IP "\fB\-ggnu\-pubnames\fR" 4
  .IX Item "-ggnu-pubnames"
  Generate \f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections in a format
*************** This option works only with \s-1DWARF\s0
*** 5554,5560 ****
  .IP "\fB\-fno\-dwarf2\-cfi\-asm\fR" 4
  .IX Item "-fno-dwarf2-cfi-asm"
  Emit \s-1DWARF\s0 unwind info as compiler generated \f(CW\*(C`.eh_frame\*(C'\fR section
! instead of using \s-1GAS \s0\f(CW\*(C`.cfi_*\*(C'\fR directives.
  .IP "\fB\-fno\-eliminate\-unused\-debug\-types\fR" 4
  .IX Item "-fno-eliminate-unused-debug-types"
  Normally, when producing \s-1DWARF\s0 output, \s-1GCC\s0 avoids producing debug symbol 
--- 5552,5558 ----
  .IP "\fB\-fno\-dwarf2\-cfi\-asm\fR" 4
  .IX Item "-fno-dwarf2-cfi-asm"
  Emit \s-1DWARF\s0 unwind info as compiler generated \f(CW\*(C`.eh_frame\*(C'\fR section
! instead of using \s-1GAS\s0 \f(CW\*(C`.cfi_*\*(C'\fR directives.
  .IP "\fB\-fno\-eliminate\-unused\-debug\-types\fR" 4
  .IX Item "-fno-eliminate-unused-debug-types"
  Normally, when producing \s-1DWARF\s0 output, \s-1GCC\s0 avoids producing debug symbol 
*************** function calls and pops them all at once
*** 5765,5771 ****
  Disabled at levels \fB\-O\fR, \fB\-O2\fR, \fB\-O3\fR, \fB\-Os\fR.
  .IP "\fB\-fforward\-propagate\fR" 4
  .IX Item "-fforward-propagate"
! Perform a forward propagation pass on \s-1RTL. \s0 The pass tries to combine two
  instructions and checks if the result can be simplified.  If loop unrolling
  is active, two passes are performed and the second is scheduled after
  loop unrolling.
--- 5763,5769 ----
  Disabled at levels \fB\-O\fR, \fB\-O2\fR, \fB\-O3\fR, \fB\-Os\fR.
  .IP "\fB\-fforward\-propagate\fR" 4
  .IX Item "-fforward-propagate"
! Perform a forward propagation pass on \s-1RTL.\s0  The pass tries to combine two
  instructions and checks if the result can be simplified.  If loop unrolling
  is active, two passes are performed and the second is scheduled after
  loop unrolling.
*************** attribute or declspec
*** 5916,5922 ****
  In C, emit \f(CW\*(C`static\*(C'\fR functions that are declared \f(CW\*(C`inline\*(C'\fR
  into the object file, even if the function has been inlined into all
  of its callers.  This switch does not affect functions using the
! \&\f(CW\*(C`extern inline\*(C'\fR extension in \s-1GNU C90. \s0 In \*(C+, emit any and all
  inline functions into the object file.
  .IP "\fB\-fkeep\-static\-functions\fR" 4
  .IX Item "-fkeep-static-functions"
--- 5914,5920 ----
  In C, emit \f(CW\*(C`static\*(C'\fR functions that are declared \f(CW\*(C`inline\*(C'\fR
  into the object file, even if the function has been inlined into all
  of its callers.  This switch does not affect functions using the
! \&\f(CW\*(C`extern inline\*(C'\fR extension in \s-1GNU C90.\s0  In \*(C+, emit any and all
  inline functions into the object file.
  .IP "\fB\-fkeep\-static\-functions\fR" 4
  .IX Item "-fkeep-static-functions"
*************** The default is \fB\-ffunction\-cse\fR
*** 5990,5996 ****
  .IP "\fB\-fno\-zero\-initialized\-in\-bss\fR" 4
  .IX Item "-fno-zero-initialized-in-bss"
  If the target supports a \s-1BSS\s0 section, \s-1GCC\s0 by default puts variables that
! are initialized to zero into \s-1BSS. \s0 This can save space in the resulting
  code.
  .Sp
  This option turns off this behavior because some programs explicitly
--- 5988,5994 ----
  .IP "\fB\-fno\-zero\-initialized\-in\-bss\fR" 4
  .IX Item "-fno-zero-initialized-in-bss"
  If the target supports a \s-1BSS\s0 section, \s-1GCC\s0 by default puts variables that
! are initialized to zero into \s-1BSS.\s0  This can save space in the resulting
  code.
  .Sp
  This option turns off this behavior because some programs explicitly
*************** pseudo-register that does not get a hard
*** 6285,6291 ****
  stack slot, and as a result function stack frames are larger.
  .IP "\fB\-flra\-remat\fR" 4
  .IX Item "-flra-remat"
! Enable CFG-sensitive rematerialization in \s-1LRA. \s0 Instead of loading
  values of spilled pseudos, \s-1LRA\s0 tries to rematerialize (recalculate)
  values if it is profitable.
  .Sp
--- 6283,6289 ----
  stack slot, and as a result function stack frames are larger.
  .IP "\fB\-flra\-remat\fR" 4
  .IX Item "-flra-remat"
! Enable CFG-sensitive rematerialization in \s-1LRA.\s0  Instead of loading
  values of spilled pseudos, \s-1LRA\s0 tries to rematerialize (recalculate)
  values if it is profitable.
  .Sp
*************** This flag is enabled by default at \fB\-
*** 6601,6607 ****
  \&\fB\-fdelete\-null\-pointer\-checks\fR also being enabled.
  .IP "\fB\-fisolate\-erroneous\-paths\-attribute\fR" 4
  .IX Item "-fisolate-erroneous-paths-attribute"
! Detect paths that trigger erroneous or undefined behavior due a null value
  being used in a way forbidden by a \f(CW\*(C`returns_nonnull\*(C'\fR or \f(CW\*(C`nonnull\*(C'\fR
  attribute.  Isolate those paths from the main control flow and turn the
  statement with erroneous or undefined behavior into a trap.  This is not
--- 6599,6605 ----
  \&\fB\-fdelete\-null\-pointer\-checks\fR also being enabled.
  .IP "\fB\-fisolate\-erroneous\-paths\-attribute\fR" 4
  .IX Item "-fisolate-erroneous-paths-attribute"
! Detect paths that trigger erroneous or undefined behavior due to a null value
  being used in a way forbidden by a \f(CW\*(C`returns_nonnull\*(C'\fR or \f(CW\*(C`nonnull\*(C'\fR
  attribute.  Isolate those paths from the main control flow and turn the
  statement with erroneous or undefined behavior into a trap.  This is not
*************** transformation infrastructure.
*** 6698,6704 ****
  Enable the identity transformation for graphite.  For every SCoP we generate
  the polyhedral representation and transform it back to gimple.  Using
  \&\fB\-fgraphite\-identity\fR we can check the costs or benefits of the
! \&\s-1GIMPLE \-\s0> \s-1GRAPHITE \-\s0> \s-1GIMPLE\s0 transformation.  Some minimal optimizations
  are also performed by the code generator isl, like index splitting and
  dead code elimination in loops.
  .IP "\fB\-floop\-nest\-optimize\fR" 4
--- 6696,6702 ----
  Enable the identity transformation for graphite.  For every SCoP we generate
  the polyhedral representation and transform it back to gimple.  Using
  \&\fB\-fgraphite\-identity\fR we can check the costs or benefits of the
! \&\s-1GIMPLE\s0 \-> \s-1GRAPHITE\s0 \-> \s-1GIMPLE\s0 transformation.  Some minimal optimizations
  are also performed by the code generator isl, like index splitting and
  dead code elimination in loops.
  .IP "\fB\-floop\-nest\-optimize\fR" 4
*************** Some assemblers only support this flag w
*** 7115,7120 ****
--- 7113,7119 ----
  in that case, it is rounded up.
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  Enabled at levels \fB\-O2\fR, \fB\-O3\fR.
  .IP "\fB\-falign\-labels\fR" 4
*************** are greater than this value, then their
*** 7136,7141 ****
--- 7135,7141 ----
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default
  which is very likely to be \fB1\fR, meaning no alignment.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  Enabled at levels \fB\-O2\fR, \fB\-O3\fR.
  .IP "\fB\-falign\-loops\fR" 4
*************** operations.
*** 7151,7156 ****
--- 7151,7157 ----
  .Sp
  \&\fB\-fno\-align\-loops\fR and \fB\-falign\-loops=1\fR are
  equivalent and mean that loops are not aligned.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default.
  .Sp
*************** need be executed.
*** 7170,7175 ****
--- 7171,7177 ----
  equivalent and mean that loops are not aligned.
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  Enabled at levels \fB\-O2\fR, \fB\-O3\fR.
  .IP "\fB\-funit\-at\-a\-time\fR" 4
*************** information.
*** 7214,7220 ****
  .IP "\fB\-flto[=\fR\fIn\fR\fB]\fR" 4
  .IX Item "-flto[=n]"
  This option runs the standard link-time optimizer.  When invoked
! with source code, it generates \s-1GIMPLE \s0(one of \s-1GCC\s0's internal
  representations) and writes it to special \s-1ELF\s0 sections in the object
  file.  When the object files are linked together, all the function
  bodies are read from these \s-1ELF\s0 sections and instantiated as if they
--- 7216,7222 ----
  .IP "\fB\-flto[=\fR\fIn\fR\fB]\fR" 4
  .IX Item "-flto[=n]"
  This option runs the standard link-time optimizer.  When invoked
! with source code, it generates \s-1GIMPLE\s0 (one of \s-1GCC\s0's internal
  representations) and writes it to special \s-1ELF\s0 sections in the object
  file.  When the object files are linked together, all the function
  bodies are read from these \s-1ELF\s0 sections and instantiated as if they
*************** E.g.
*** 7554,7560 ****
  .Ve
  .Sp
  Then use the \fBcreate_gcov\fR tool to convert the raw profile data
! to a format that can be used by \s-1GCC. \s0 You must also supply the 
  unstripped binary for your program to this tool.  
  See <\fBhttps://github.com/google/autofdo\fR>.
  .Sp
--- 7556,7562 ----
  .Ve
  .Sp
  Then use the \fBcreate_gcov\fR tool to convert the raw profile data
! to a format that can be used by \s-1GCC.\s0  You must also supply the 
  unstripped binary for your program to this tool.  
  See <\fBhttps://github.com/google/autofdo\fR>.
  .Sp
*************** them to store all pertinent intermediate
*** 7584,7591 ****
  .IP "\fB\-fexcess\-precision=\fR\fIstyle\fR" 4
  .IX Item "-fexcess-precision=style"
  This option allows further control over excess precision on machines
! where floating-point registers have more precision than the \s-1IEEE
! \&\s0\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR types and the processor does not
  support operations rounding to those types.  By default,
  \&\fB\-fexcess\-precision=fast\fR is in effect; this means that
  operations are carried out in the precision of the registers and that
--- 7586,7593 ----
  .IP "\fB\-fexcess\-precision=\fR\fIstyle\fR" 4
  .IX Item "-fexcess-precision=style"
  This option allows further control over excess precision on machines
! where floating-point registers have more precision than the \s-1IEEE\s0
! \&\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR types and the processor does not
  support operations rounding to those types.  By default,
  \&\fB\-fexcess\-precision=fast\fR is in effect; this means that
  operations are carried out in the precision of the registers and that
*************** whether the result of a complex multipli
*** 7759,7766 ****
  default is \fB\-fno\-cx\-limited\-range\fR, but is enabled by
  \&\fB\-ffast\-math\fR.
  .Sp
! This option controls the default setting of the \s-1ISO C99
! \&\s0\f(CW\*(C`CX_LIMITED_RANGE\*(C'\fR pragma.  Nevertheless, the option applies to
  all languages.
  .IP "\fB\-fcx\-fortran\-rules\fR" 4
  .IX Item "-fcx-fortran-rules"
--- 7761,7768 ----
  default is \fB\-fno\-cx\-limited\-range\fR, but is enabled by
  \&\fB\-ffast\-math\fR.
  .Sp
! This option controls the default setting of the \s-1ISO C99\s0
! \&\f(CW\*(C`CX_LIMITED_RANGE\*(C'\fR pragma.  Nevertheless, the option applies to
  all languages.
  .IP "\fB\-fcx\-fortran\-rules\fR" 4
  .IX Item "-fcx-fortran-rules"
*************** Tuning this may improve compilation spee
*** 8365,8371 ****
  generation.
  .Sp
  The default is 30% + 70% * (\s-1RAM/1GB\s0) with an upper bound of 100% when
! \&\s-1RAM \s0>= 1GB.  If \f(CW\*(C`getrlimit\*(C'\fR is available, the notion of \*(L"\s-1RAM\*(R"\s0 is
  the smallest of actual \s-1RAM\s0 and \f(CW\*(C`RLIMIT_DATA\*(C'\fR or \f(CW\*(C`RLIMIT_AS\*(C'\fR.  If
  \&\s-1GCC\s0 is not able to calculate \s-1RAM\s0 on a particular platform, the lower
  bound of 30% is used.  Setting this parameter and
--- 8367,8373 ----
  generation.
  .Sp
  The default is 30% + 70% * (\s-1RAM/1GB\s0) with an upper bound of 100% when
! \&\s-1RAM\s0 >= 1GB.  If \f(CW\*(C`getrlimit\*(C'\fR is available, the notion of \*(L"\s-1RAM\*(R"\s0 is
  the smallest of actual \s-1RAM\s0 and \f(CW\*(C`RLIMIT_DATA\*(C'\fR or \f(CW\*(C`RLIMIT_AS\*(C'\fR.  If
  \&\s-1GCC\s0 is not able to calculate \s-1RAM\s0 on a particular platform, the lower
  bound of 30% is used.  Setting this parameter and
*************** This value is the best found from numero
*** 8589,8595 ****
  This optimization is called inheritance.  \s-1EBB\s0 is used as a region to
  do this optimization.  The parameter defines a minimal fall-through
  edge probability in percentage used to add \s-1BB\s0 to inheritance \s-1EBB\s0 in
! \&\s-1LRA. \s0 The default value of the parameter is 40.  The value was chosen
  from numerous runs of \s-1SPEC2000\s0 on x86\-64.
  .IP "\fBloop-invariant-max-bbs-in-loop\fR" 4
  .IX Item "loop-invariant-max-bbs-in-loop"
--- 8591,8597 ----
  This optimization is called inheritance.  \s-1EBB\s0 is used as a region to
  do this optimization.  The parameter defines a minimal fall-through
  edge probability in percentage used to add \s-1BB\s0 to inheritance \s-1EBB\s0 in
! \&\s-1LRA.\s0  The default value of the parameter is 40.  The value was chosen
  from numerous runs of \s-1SPEC2000\s0 on x86\-64.
  .IP "\fBloop-invariant-max-bbs-in-loop\fR" 4
  .IX Item "loop-invariant-max-bbs-in-loop"
*************** The number of partitions should exceed t
*** 8731,8737 ****
  The default value is 32.
  .IP "\fBlto-min-partition\fR" 4
  .IX Item "lto-min-partition"
! Size of minimal partition for \s-1WHOPR \s0(in estimated instructions).
  This prevents expenses of splitting very small programs into too many
  partitions.
  .IP "\fBcxx-max-namespaces-for-diagnostic-help\fR" 4
--- 8733,8739 ----
  The default value is 32.
  .IP "\fBlto-min-partition\fR" 4
  .IX Item "lto-min-partition"
! Size of minimal partition for \s-1WHOPR\s0 (in estimated instructions).
  This prevents expenses of splitting very small programs into too many
  partitions.
  .IP "\fBcxx-max-namespaces-for-diagnostic-help\fR" 4
*************** Link your object files with \fB\-lgcov\f
*** 8926,8934 ****
  Run the program on a representative workload to generate the arc profile
  information.  This may be repeated any number of times.  You can run
  concurrent instances of your program, and provided that the file system
! supports locking, the data files will be correctly updated.  Also
! \&\f(CW\*(C`fork\*(C'\fR calls are detected and correctly handled (double counting
! will not happen).
  .IP "*" 4
  For profile-directed optimizations, compile the source files again with
  the same optimization and code generation options plus
--- 8928,8936 ----
  Run the program on a representative workload to generate the arc profile
  information.  This may be repeated any number of times.  You can run
  concurrent instances of your program, and provided that the file system
! supports locking, the data files will be correctly updated.  Unless
! a strict \s-1ISO C\s0 dialect option is in effect, \f(CW\*(C`fork\*(C'\fR calls are
! detected and correctly handled without double counting.
  .IP "*" 4
  For profile-directed optimizations, compile the source files again with
  the same optimization and code generation options plus
*************** get trigraph conversion without warnings
*** 9654,9660 ****
  .IP "\fB\-Wtraditional\fR" 4
  .IX Item "-Wtraditional"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C. \s0 Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and problematic constructs which should be avoided.
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
--- 9656,9662 ----
  .IP "\fB\-Wtraditional\fR" 4
  .IX Item "-Wtraditional"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C.\s0  Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and problematic constructs which should be avoided.
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
*************** When \fB\-fpreprocessed\fR is in use, \s
*** 9850,9856 ****
  and loads the \s-1PCH.\s0
  .Sp
  This option is off by default, because the resulting preprocessed output
! is only really suitable as input to \s-1GCC. \s0 It is switched on by
  \&\fB\-save\-temps\fR.
  .Sp
  You should not write this \f(CW\*(C`#pragma\*(C'\fR in your own code, but it is
--- 9852,9858 ----
  and loads the \s-1PCH.\s0
  .Sp
  This option is off by default, because the resulting preprocessed output
! is only really suitable as input to \s-1GCC.\s0  It is switched on by
  \&\fB\-save\-temps\fR.
  .Sp
  You should not write this \f(CW\*(C`#pragma\*(C'\fR in your own code, but it is
*************** line.  If the value is less than 1 or gr
*** 10122,10128 ****
  ignored.  The default is 8.
  .IP "\fB\-fdebug\-cpp\fR" 4
  .IX Item "-fdebug-cpp"
! This option is only useful for debugging \s-1GCC. \s0 When used with
  \&\fB\-E\fR, dumps debugging information about location maps.  Every
  token in the output is preceded by the dump of the map its location
  belongs to.  The dump of the map holding the location of a token would
--- 10124,10130 ----
  ignored.  The default is 8.
  .IP "\fB\-fdebug\-cpp\fR" 4
  .IX Item "-fdebug-cpp"
! This option is only useful for debugging \s-1GCC.\s0  When used with
  \&\fB\-E\fR, dumps debugging information about location maps.  Every
  token in the output is preceded by the dump of the map its location
  belongs to.  The dump of the map holding the location of a token would
*************** Note that \f(CW\*(C`\-ftrack\-macro\-exp
*** 10155,10161 ****
  .IP "\fB\-fexec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fexec-charset=charset"
  Set the execution character set, used for string and character
! constants.  The default is \s-1UTF\-8.  \s0\fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
  .IP "\fB\-fwide\-exec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fwide-exec-charset=charset"
--- 10157,10163 ----
  .IP "\fB\-fexec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fexec-charset=charset"
  Set the execution character set, used for string and character
! constants.  The default is \s-1UTF\-8.\s0  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
  .IP "\fB\-fwide\-exec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fwide-exec-charset=charset"
*************** problems with encodings that do not fit
*** 10168,10176 ****
  .IP "\fB\-finput\-charset=\fR\fIcharset\fR" 4
  .IX Item "-finput-charset=charset"
  Set the input character set, used for translation from the character
! set of the input file to the source character set used by \s-1GCC. \s0 If the
  locale does not specify, or \s-1GCC\s0 cannot get this information from the
! locale, the default is \s-1UTF\-8. \s0 This can be overridden by either the locale
  or this command-line option.  Currently the command-line option takes
  precedence if there's a conflict.  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
--- 10170,10178 ----
  .IP "\fB\-finput\-charset=\fR\fIcharset\fR" 4
  .IX Item "-finput-charset=charset"
  Set the input character set, used for translation from the character
! set of the input file to the source character set used by \s-1GCC.\s0  If the
  locale does not specify, or \s-1GCC\s0 cannot get this information from the
! locale, the default is \s-1UTF\-8.\s0  This can be overridden by either the locale
  or this command-line option.  Currently the command-line option takes
  precedence if there's a conflict.  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
*************** the \s-1GOT\s0 size for the linked execu
*** 11046,11052 ****
  maximum size, you get an error message from the linker indicating that
  \&\fB\-fpic\fR does not work; in that case, recompile with \fB\-fPIC\fR
  instead.  (These maximums are 8k on the \s-1SPARC,\s0 28k on AArch64 and 32k
! on the m68k and \s-1RS/6000. \s0 The x86 has no such limit.)
  .Sp
  Position-independent code requires special support, and therefore works
  only on certain machines.  For the x86, \s-1GCC\s0 supports \s-1PIC\s0 for System V
--- 11048,11054 ----
  maximum size, you get an error message from the linker indicating that
  \&\fB\-fpic\fR does not work; in that case, recompile with \fB\-fPIC\fR
  instead.  (These maximums are 8k on the \s-1SPARC,\s0 28k on AArch64 and 32k
! on the m68k and \s-1RS/6000.\s0  The x86 has no such limit.)
  .Sp
  Position-independent code requires special support, and therefore works
  only on certain machines.  For the x86, \s-1GCC\s0 supports \s-1PIC\s0 for System V
*************** Enable showing virtual operands for ever
*** 11728,11734 ****
  Enable showing line numbers for statements.
  .IP "\fBuid\fR" 4
  .IX Item "uid"
! Enable showing the unique \s-1ID \s0(\f(CW\*(C`DECL_UID\*(C'\fR) for each variable.
  .IP "\fBverbose\fR" 4
  .IX Item "verbose"
  Enable showing the tree dump for each statement.
--- 11730,11736 ----
  Enable showing line numbers for statements.
  .IP "\fBuid\fR" 4
  .IX Item "uid"
! Enable showing the unique \s-1ID\s0 (\f(CW\*(C`DECL_UID\*(C'\fR) for each variable.
  .IP "\fBverbose\fR" 4
  .IX Item "verbose"
  Enable showing the tree dump for each statement.
*************** Dump aliasing information for each funct
*** 11810,11816 ****
  appending \fI.alias\fR to the source file name.
  .IP "\fBccp\fR" 4
  .IX Item "ccp"
! Dump each function after \s-1CCP. \s0 The file name is made by appending
  \&\fI.ccp\fR to the source file name.
  .IP "\fBstoreccp\fR" 4
  .IX Item "storeccp"
--- 11812,11818 ----
  appending \fI.alias\fR to the source file name.
  .IP "\fBccp\fR" 4
  .IX Item "ccp"
! Dump each function after \s-1CCP.\s0  The file name is made by appending
  \&\fI.ccp\fR to the source file name.
  .IP "\fBstoreccp\fR" 4
  .IX Item "storeccp"
*************** values for \fIcpu\fR are
*** 12832,12852 ****
  .IP "\fBarc600\fR" 4
  .IX Item "arc600"
  .PD
! Compile for \s-1ARC600. \s0 Aliases: \fB\-mA6\fR, \fB\-mARC600\fR.
  .IP "\fB\s-1ARC601\s0\fR" 4
  .IX Item "ARC601"
  .PD 0
  .IP "\fBarc601\fR" 4
  .IX Item "arc601"
  .PD
! Compile for \s-1ARC601. \s0 Alias: \fB\-mARC601\fR.
  .IP "\fB\s-1ARC700\s0\fR" 4
  .IX Item "ARC700"
  .PD 0
  .IP "\fBarc700\fR" 4
  .IX Item "arc700"
  .PD
! Compile for \s-1ARC700. \s0 Aliases: \fB\-mA7\fR, \fB\-mARC700\fR.
  This is the default when configured with \fB\-\-with\-cpu=arc700\fR.
  .IP "\fB\s-1ARCEM\s0\fR" 4
  .IX Item "ARCEM"
--- 12834,12854 ----
  .IP "\fBarc600\fR" 4
  .IX Item "arc600"
  .PD
! Compile for \s-1ARC600.\s0  Aliases: \fB\-mA6\fR, \fB\-mARC600\fR.
  .IP "\fB\s-1ARC601\s0\fR" 4
  .IX Item "ARC601"
  .PD 0
  .IP "\fBarc601\fR" 4
  .IX Item "arc601"
  .PD
! Compile for \s-1ARC601.\s0  Alias: \fB\-mARC601\fR.
  .IP "\fB\s-1ARC700\s0\fR" 4
  .IX Item "ARC700"
  .PD 0
  .IP "\fBarc700\fR" 4
  .IX Item "arc700"
  .PD
! Compile for \s-1ARC700.\s0  Aliases: \fB\-mA7\fR, \fB\-mARC700\fR.
  This is the default when configured with \fB\-\-with\-cpu=arc700\fR.
  .IP "\fB\s-1ARCEM\s0\fR" 4
  .IX Item "ARCEM"
*************** Replaced by \fB\-mmultcost\fR.
*** 13366,13372 ****
  These \fB\-m\fR options are defined for the \s-1ARM\s0 port:
  .IP "\fB\-mabi=\fR\fIname\fR" 4
  .IX Item "-mabi=name"
! Generate code for the specified \s-1ABI. \s0 Permissible values are: \fBapcs-gnu\fR,
  \&\fBatpcs\fR, \fBaapcs\fR, \fBaapcs-linux\fR and \fBiwmmxt\fR.
  .IP "\fB\-mapcs\-frame\fR" 4
  .IX Item "-mapcs-frame"
--- 13368,13374 ----
  These \fB\-m\fR options are defined for the \s-1ARM\s0 port:
  .IP "\fB\-mabi=\fR\fIname\fR" 4
  .IX Item "-mabi=name"
! Generate code for the specified \s-1ABI.\s0  Permissible values are: \fBapcs-gnu\fR,
  \&\fBatpcs\fR, \fBaapcs\fR, \fBaapcs-linux\fR and \fBiwmmxt\fR.
  .IP "\fB\-mapcs\-frame\fR" 4
  .IX Item "-mapcs-frame"
*************** The default for this option is@tie{}\fBa
*** 13829,13836 ****
  .ie n .IP """avrxmega5""" 4
  .el .IP "\f(CWavrxmega5\fR" 4
  .IX Item "avrxmega5"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 64@tie{}KiB and up to 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.
! \&\s0\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega64a1\*(C'\fR, \f(CW\*(C`atxmega64a1u\*(C'\fR.
  .ie n .IP """avrxmega6""" 4
  .el .IP "\f(CWavrxmega6\fR" 4
  .IX Item "avrxmega6"
--- 13831,13838 ----
  .ie n .IP """avrxmega5""" 4
  .el .IP "\f(CWavrxmega5\fR" 4
  .IX Item "avrxmega5"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 64@tie{}KiB and up to 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.\s0
! \&\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega64a1\*(C'\fR, \f(CW\*(C`atxmega64a1u\*(C'\fR.
  .ie n .IP """avrxmega6""" 4
  .el .IP "\f(CWavrxmega6\fR" 4
  .IX Item "avrxmega6"
*************** The default for this option is@tie{}\fBa
*** 13839,13846 ****
  .ie n .IP """avrxmega7""" 4
  .el .IP "\f(CWavrxmega7\fR" 4
  .IX Item "avrxmega7"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.
! \&\s0\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega128a1\*(C'\fR, \f(CW\*(C`atxmega128a1u\*(C'\fR, \f(CW\*(C`atxmega128a4u\*(C'\fR.
  .ie n .IP """avrtiny""" 4
  .el .IP "\f(CWavrtiny\fR" 4
  .IX Item "avrtiny"
--- 13841,13848 ----
  .ie n .IP """avrxmega7""" 4
  .el .IP "\f(CWavrxmega7\fR" 4
  .IX Item "avrxmega7"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.\s0
! \&\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega128a1\*(C'\fR, \f(CW\*(C`atxmega128a1u\*(C'\fR, \f(CW\*(C`atxmega128a4u\*(C'\fR.
  .ie n .IP """avrtiny""" 4
  .el .IP "\f(CWavrtiny\fR" 4
  .IX Item "avrtiny"
*************** performed as
*** 13949,13959 ****
  Only change the lower 8@tie{}bits of the stack pointer.
  .IP "\fB\-nodevicelib\fR" 4
  .IX Item "-nodevicelib"
! Don't link against AVR-LibC's device specific library \f(CW\*(C`libdev.a\*(C'\fR.
  .IP "\fB\-Waddr\-space\-convert\fR" 4
  .IX Item "-Waddr-space-convert"
  Warn about conversions between address spaces in the case where the
  resulting address space is not contained in the incoming address space.
  .PP
  \f(CW\*(C`EIND\*(C'\fR and Devices with More Than 128 Ki Bytes of Flash
  .IX Subsection "EIND and Devices with More Than 128 Ki Bytes of Flash"
--- 13951,13965 ----
  Only change the lower 8@tie{}bits of the stack pointer.
  .IP "\fB\-nodevicelib\fR" 4
  .IX Item "-nodevicelib"
! Don't link against AVR-LibC's device specific library \f(CW\*(C`lib<mcu>.a\*(C'\fR.
  .IP "\fB\-Waddr\-space\-convert\fR" 4
  .IX Item "-Waddr-space-convert"
  Warn about conversions between address spaces in the case where the
  resulting address space is not contained in the incoming address space.
+ .IP "\fB\-Wmisspelled\-isr\fR" 4
+ .IX Item "-Wmisspelled-isr"
+ Warn if the \s-1ISR\s0 is misspelled, i.e. without \f(CW\*(C`_\|_vector\*(C'\fR prefix.
+ Enabled by default.
  .PP
  \f(CW\*(C`EIND\*(C'\fR and Devices with More Than 128 Ki Bytes of Flash
  .IX Subsection "EIND and Devices with More Than 128 Ki Bytes of Flash"
*************** for \fImcu\fR=\f(CW\*(C`avrtiny\*(C'\fR,
*** 14161,14167 ****
  If \fImcu\fR specifies a device, this built-in macro is set
  accordingly. For example, with \fB\-mmcu=atmega8\fR the macro is
  defined to \f(CW4\fR.
! .ie n .IP """_\|_AVR_\f(CIDevice\f(CW_\|_""" 4
  .el .IP "\f(CW_\|_AVR_\f(CIDevice\f(CW_\|_\fR" 4
  .IX Item "__AVR_Device__"
  Setting \fB\-mmcu=\fR\fIdevice\fR defines this built-in macro which reflects
--- 14167,14173 ----
  If \fImcu\fR specifies a device, this built-in macro is set
  accordingly. For example, with \fB\-mmcu=atmega8\fR the macro is
  defined to \f(CW4\fR.
! .ie n .IP """_\|_AVR_\fIDevice\fP_\|_""" 4
  .el .IP "\f(CW_\|_AVR_\f(CIDevice\f(CW_\|_\fR" 4
  .IX Item "__AVR_Device__"
  Setting \fB\-mmcu=\fR\fIdevice\fR defines this built-in macro which reflects
*************** The definition of these macros is affect
*** 14255,14261 ****
  .el .IP "\f(CW_\|_AVR_SP8_\|_\fR" 4
  .IX Item "__AVR_SP8__"
  .PD
! The device has the \s-1SPH \s0(high part of stack pointer) special function
  register or has an 8\-bit stack pointer, respectively.
  The definition of these macros is affected by \fB\-mmcu=\fR and
  in the cases of \fB\-mmcu=avr2\fR and \fB\-mmcu=avr25\fR also
--- 14261,14267 ----
  .el .IP "\f(CW_\|_AVR_SP8_\|_\fR" 4
  .IX Item "__AVR_SP8__"
  .PD
! The device has the \s-1SPH\s0 (high part of stack pointer) special function
  register or has an 8\-bit stack pointer, respectively.
  The definition of these macros is affected by \fB\-mmcu=\fR and
  in the cases of \fB\-mmcu=avr2\fR and \fB\-mmcu=avr25\fR also
*************** set.
*** 14297,14303 ****
  .el .IP "\f(CW_\|_AVR_ISA_RMW_\|_\fR" 4
  .IX Item "__AVR_ISA_RMW__"
  The device has Read-Modify-Write instructions (\s-1XCH, LAC, LAS\s0 and \s-1LAT\s0).
! .ie n .IP """_\|_AVR_SFR_OFFSET_\|_=\f(CIoffset\f(CW""" 4
  .el .IP "\f(CW_\|_AVR_SFR_OFFSET_\|_=\f(CIoffset\f(CW\fR" 4
  .IX Item "__AVR_SFR_OFFSET__=offset"
  Instructions that can address I/O special function registers directly
--- 14303,14309 ----
  .el .IP "\f(CW_\|_AVR_ISA_RMW_\|_\fR" 4
  .IX Item "__AVR_ISA_RMW__"
  The device has Read-Modify-Write instructions (\s-1XCH, LAC, LAS\s0 and \s-1LAT\s0).
! .ie n .IP """_\|_AVR_SFR_OFFSET_\|_=\fIoffset\fP""" 4
  .el .IP "\f(CW_\|_AVR_SFR_OFFSET_\|_=\f(CIoffset\f(CW\fR" 4
  .IX Item "__AVR_SFR_OFFSET__=offset"
  Instructions that can address I/O special function registers directly
*************** or storage for local variables needs to
*** 14633,14639 ****
  With \fB\-fpic\fR and \fB\-fPIC\fR, don't generate (do generate)
  instruction sequences that load addresses for functions from the \s-1PLT\s0 part
  of the \s-1GOT\s0 rather than (traditional on other architectures) calls to the
! \&\s-1PLT. \s0 The default is \fB\-mgotplt\fR.
  .IP "\fB\-melf\fR" 4
  .IX Item "-melf"
  Legacy no-op option only recognized with the cris-axis-elf and
--- 14639,14645 ----
  With \fB\-fpic\fR and \fB\-fPIC\fR, don't generate (do generate)
  instruction sequences that load addresses for functions from the \s-1PLT\s0 part
  of the \s-1GOT\s0 rather than (traditional on other architectures) calls to the
! \&\s-1PLT.\s0  The default is \fB\-mgotplt\fR.
  .IP "\fB\-melf\fR" 4
  .IX Item "-melf"
  Legacy no-op option only recognized with the cris-axis-elf and
*************** compilers call this option \fB\-ieee_wit
*** 14999,15005 ****
  .IP "\fB\-mieee\-with\-inexact\fR" 4
  .IX Item "-mieee-with-inexact"
  This is like \fB\-mieee\fR except the generated code also maintains
! the \s-1IEEE \s0\fIinexact-flag\fR.  Turning on this option causes the
  generated code to implement fully-compliant \s-1IEEE\s0 math.  In addition to
  \&\f(CW\*(C`_IEEE_FP\*(C'\fR, \f(CW\*(C`_IEEE_FP_EXACT\*(C'\fR is defined as a preprocessor
  macro.  On some Alpha implementations the resulting code may execute
--- 15005,15011 ----
  .IP "\fB\-mieee\-with\-inexact\fR" 4
  .IX Item "-mieee-with-inexact"
  This is like \fB\-mieee\fR except the generated code also maintains
! the \s-1IEEE\s0 \fIinexact-flag\fR.  Turning on this option causes the
  generated code to implement fully-compliant \s-1IEEE\s0 math.  In addition to
  \&\f(CW\*(C`_IEEE_FP\*(C'\fR, \f(CW\*(C`_IEEE_FP_EXACT\*(C'\fR is defined as a preprocessor
  macro.  On some Alpha implementations the resulting code may execute
*************** These \fB\-m\fR options are defined for
*** 15628,15634 ****
  .IP "\fB\-march=\fR\fIarchitecture-type\fR" 4
  .IX Item "-march=architecture-type"
  Generate code for the specified architecture.  The choices for
! \&\fIarchitecture-type\fR are \fB1.0\fR for \s-1PA 1.0, \s0\fB1.1\fR for \s-1PA
  1.1,\s0 and \fB2.0\fR for \s-1PA 2.0\s0 processors.  Refer to
  \&\fI/usr/lib/sched.models\fR on an HP-UX system to determine the proper
  architecture option for your machine.  Code compiled for lower numbered
--- 15634,15640 ----
  .IP "\fB\-march=\fR\fIarchitecture-type\fR" 4
  .IX Item "-march=architecture-type"
  Generate code for the specified architecture.  The choices for
! \&\fIarchitecture-type\fR are \fB1.0\fR for \s-1PA 1.0,\s0 \fB1.1\fR for \s-1PA
  1.1,\s0 and \fB2.0\fR for \s-1PA 2.0\s0 processors.  Refer to
  \&\fI/usr/lib/sched.models\fR on an HP-UX system to determine the proper
  architecture option for your machine.  Code compiled for lower numbered
*************** other way around.
*** 15643,15648 ****
--- 15649,15661 ----
  .IX Item "-mpa-risc-2-0"
  .PD
  Synonyms for \fB\-march=1.0\fR, \fB\-march=1.1\fR, and \fB\-march=2.0\fR respectively.
+ .IP "\fB\-mcaller\-copies\fR" 4
+ .IX Item "-mcaller-copies"
+ The caller copies function arguments passed by hidden reference.  This
+ option should be used with care as it is not compatible with the default
+ 32\-bit runtime.  However, only aggregates larger than eight bytes are
+ passed by hidden reference and the option provides better compatibility
+ with OpenMP.
  .IP "\fB\-mjump\-in\-delay\fR" 4
  .IX Item "-mjump-in-delay"
  This option is ignored and provided for compatibility purposes only.
*************** library that comes with \s-1GCC,\s0 with
*** 15716,15728 ****
  this to work.
  .IP "\fB\-msio\fR" 4
  .IX Item "-msio"
! Generate the predefine, \f(CW\*(C`_SIO\*(C'\fR, for server \s-1IO. \s0 The default is
  \&\fB\-mwsio\fR.  This generates the predefines, \f(CW\*(C`_\|_hp9000s700\*(C'\fR,
! \&\f(CW\*(C`_\|_hp9000s700_\|_\*(C'\fR and \f(CW\*(C`_WSIO\*(C'\fR, for workstation \s-1IO. \s0 These
  options are available under HP-UX and HI-UX.
  .IP "\fB\-mgnu\-ld\fR" 4
  .IX Item "-mgnu-ld"
! Use options specific to \s-1GNU \s0\fBld\fR.
  This passes \fB\-shared\fR to \fBld\fR when
  building a shared library.  It is the default when \s-1GCC\s0 is configured,
  explicitly or implicitly, with the \s-1GNU\s0 linker.  This option does not
--- 15729,15741 ----
  this to work.
  .IP "\fB\-msio\fR" 4
  .IX Item "-msio"
! Generate the predefine, \f(CW\*(C`_SIO\*(C'\fR, for server \s-1IO.\s0  The default is
  \&\fB\-mwsio\fR.  This generates the predefines, \f(CW\*(C`_\|_hp9000s700\*(C'\fR,
! \&\f(CW\*(C`_\|_hp9000s700_\|_\*(C'\fR and \f(CW\*(C`_WSIO\*(C'\fR, for workstation \s-1IO.\s0  These
  options are available under HP-UX and HI-UX.
  .IP "\fB\-mgnu\-ld\fR" 4
  .IX Item "-mgnu-ld"
! Use options specific to \s-1GNU\s0 \fBld\fR.
  This passes \fB\-shared\fR to \fBld\fR when
  building a shared library.  It is the default when \s-1GCC\s0 is configured,
  explicitly or implicitly, with the \s-1GNU\s0 linker.  This option does not
*************** using \fBwhich `gcc \-print\-prog\-name=
*** 15735,15741 ****
  on the 64\-bit HP-UX \s-1GCC,\s0 i.e. configured with \fBhppa*64*\-*\-hpux*\fR.
  .IP "\fB\-mhp\-ld\fR" 4
  .IX Item "-mhp-ld"
! Use options specific to \s-1HP \s0\fBld\fR.
  This passes \fB\-b\fR to \fBld\fR when building
  a shared library and passes \fB+Accept TypeMismatch\fR to \fBld\fR on all
  links.  It is the default when \s-1GCC\s0 is configured, explicitly or
--- 15748,15754 ----
  on the 64\-bit HP-UX \s-1GCC,\s0 i.e. configured with \fBhppa*64*\-*\-hpux*\fR.
  .IP "\fB\-mhp\-ld\fR" 4
  .IX Item "-mhp-ld"
! Use options specific to \s-1HP\s0 \fBld\fR.
  This passes \fB\-b\fR to \fBld\fR when building
  a shared library and passes \fB+Accept TypeMismatch\fR to \fBld\fR on all
  links.  It is the default when \s-1GCC\s0 is configured, explicitly or
*************** have to be emulated by software on the 6
*** 16402,16408 ****
  does not have code to emulate those instructions.
  .IP "\fB\-mcpu32\fR" 4
  .IX Item "-mcpu32"
! Generate output for a \s-1CPU32. \s0 This is the default
  when the compiler is configured for CPU32\-based systems.
  It is equivalent to \fB\-march=cpu32\fR.
  .Sp
--- 16415,16421 ----
  does not have code to emulate those instructions.
  .IP "\fB\-mcpu32\fR" 4
  .IX Item "-mcpu32"
! Generate output for a \s-1CPU32.\s0  This is the default
  when the compiler is configured for CPU32\-based systems.
  It is equivalent to \fB\-march=cpu32\fR.
  .Sp
*************** Use this option for microcontrollers wit
*** 16411,16417 ****
  68336, 68340, 68341, 68349 and 68360.
  .IP "\fB\-m5200\fR" 4
  .IX Item "-m5200"
! Generate output for a 520X ColdFire \s-1CPU. \s0 This is the default
  when the compiler is configured for 520X\-based systems.
  It is equivalent to \fB\-mcpu=5206\fR, and is now deprecated
  in favor of that option.
--- 16424,16430 ----
  68336, 68340, 68341, 68349 and 68360.
  .IP "\fB\-m5200\fR" 4
  .IX Item "-m5200"
! Generate output for a 520X ColdFire \s-1CPU.\s0  This is the default
  when the compiler is configured for 520X\-based systems.
  It is equivalent to \fB\-mcpu=5206\fR, and is now deprecated
  in favor of that option.
*************** Use this option for microcontroller with
*** 16420,16426 ****
  the \s-1MCF5202, MCF5203, MCF5204\s0 and \s-1MCF5206.\s0
  .IP "\fB\-m5206e\fR" 4
  .IX Item "-m5206e"
! Generate output for a 5206e ColdFire \s-1CPU. \s0 The option is now
  deprecated in favor of the equivalent \fB\-mcpu=5206e\fR.
  .IP "\fB\-m528x\fR" 4
  .IX Item "-m528x"
--- 16433,16439 ----
  the \s-1MCF5202, MCF5203, MCF5204\s0 and \s-1MCF5206.\s0
  .IP "\fB\-m5206e\fR" 4
  .IX Item "-m5206e"
! Generate output for a 5206e ColdFire \s-1CPU.\s0  The option is now
  deprecated in favor of the equivalent \fB\-mcpu=5206e\fR.
  .IP "\fB\-m528x\fR" 4
  .IX Item "-m528x"
*************** The option is now deprecated in favor of
*** 16429,16443 ****
  \&\fB\-mcpu=528x\fR.
  .IP "\fB\-m5307\fR" 4
  .IX Item "-m5307"
! Generate output for a ColdFire 5307 \s-1CPU. \s0 The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5307\fR.
  .IP "\fB\-m5407\fR" 4
  .IX Item "-m5407"
! Generate output for a ColdFire 5407 \s-1CPU. \s0 The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5407\fR.
  .IP "\fB\-mcfv4e\fR" 4
  .IX Item "-mcfv4e"
! Generate output for a ColdFire V4e family \s-1CPU \s0(e.g. 547x/548x).
  This includes use of hardware floating-point instructions.
  The option is equivalent to \fB\-mcpu=547x\fR, and is now
  deprecated in favor of that option.
--- 16442,16456 ----
  \&\fB\-mcpu=528x\fR.
  .IP "\fB\-m5307\fR" 4
  .IX Item "-m5307"
! Generate output for a ColdFire 5307 \s-1CPU.\s0  The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5307\fR.
  .IP "\fB\-m5407\fR" 4
  .IX Item "-m5407"
! Generate output for a ColdFire 5407 \s-1CPU.\s0  The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5407\fR.
  .IP "\fB\-mcfv4e\fR" 4
  .IX Item "-mcfv4e"
! Generate output for a ColdFire V4e family \s-1CPU\s0 (e.g. 547x/548x).
  This includes use of hardware floating-point instructions.
  The option is equivalent to \fB\-mcpu=547x\fR, and is now
  deprecated in favor of that option.
*************** The option is equivalent to \fB\-march=6
*** 16464,16470 ****
  .IX Item "-m68881"
  .PD
  Generate floating-point instructions.  This is the default for 68020
! and above, and for ColdFire devices that have an \s-1FPU. \s0 It defines the
  macro \f(CW\*(C`_\|_HAVE_68881_\|_\*(C'\fR on M680x0 targets and \f(CW\*(C`_\|_mcffpu_\|_\*(C'\fR
  on ColdFire targets.
  .IP "\fB\-msoft\-float\fR" 4
--- 16477,16483 ----
  .IX Item "-m68881"
  .PD
  Generate floating-point instructions.  This is the default for 68020
! and above, and for ColdFire devices that have an \s-1FPU.\s0  It defines the
  macro \f(CW\*(C`_\|_HAVE_68881_\|_\*(C'\fR on M680x0 targets and \f(CW\*(C`_\|_mcffpu_\|_\*(C'\fR
  on ColdFire targets.
  .IP "\fB\-msoft\-float\fR" 4
*************** the default for ColdFire devices that ha
*** 16481,16488 ****
  Generate (do not generate) ColdFire hardware divide and remainder
  instructions.  If \fB\-march\fR is used without \fB\-mcpu\fR,
  the default is \*(L"on\*(R" for ColdFire architectures and \*(L"off\*(R" for M680x0
! architectures.  Otherwise, the default is taken from the target \s-1CPU
! \&\s0(either the default \s-1CPU,\s0 or the one specified by \fB\-mcpu\fR).  For
  example, the default is \*(L"off\*(R" for \fB\-mcpu=5206\fR and \*(L"on\*(R" for
  \&\fB\-mcpu=5206e\fR.
  .Sp
--- 16494,16501 ----
  Generate (do not generate) ColdFire hardware divide and remainder
  instructions.  If \fB\-march\fR is used without \fB\-mcpu\fR,
  the default is \*(L"on\*(R" for ColdFire architectures and \*(L"off\*(R" for M680x0
! architectures.  Otherwise, the default is taken from the target \s-1CPU\s0
! (either the default \s-1CPU,\s0 or the one specified by \fB\-mcpu\fR).  For
  example, the default is \*(L"off\*(R" for \fB\-mcpu=5206\fR and \*(L"on\*(R" for
  \&\fB\-mcpu=5206e\fR.
  .Sp
*************** The processor names are:
*** 16967,16973 ****
  \&\fBvr5000\fR, \fBvr5400\fR, \fBvr5500\fR,
  \&\fBxlr\fR and \fBxlp\fR.
  The special value \fBfrom-abi\fR selects the
! most compatible architecture for the selected \s-1ABI \s0(that is,
  \&\fBmips1\fR for 32\-bit ABIs and \fBmips3\fR for 64\-bit ABIs).
  .Sp
  The native Linux/GNU toolchain also supports the value \fBnative\fR,
--- 16980,16986 ----
  \&\fBvr5000\fR, \fBvr5400\fR, \fBvr5500\fR,
  \&\fBxlr\fR and \fBxlp\fR.
  The special value \fBfrom-abi\fR selects the
! most compatible architecture for the selected \s-1ABI\s0 (that is,
  \&\fBmips1\fR for 32\-bit ABIs and \fBmips3\fR for 64\-bit ABIs).
  .Sp
  The native Linux/GNU toolchain also supports the value \fBnative\fR,
*************** remains the same in that the even-number
*** 17130,17137 ****
  are saved.
  .Sp
  Two additional variants of the o32 \s-1ABI\s0 are supported to enable
! a transition from 32\-bit to 64\-bit registers.  These are \s-1FPXX
! \&\s0(\fB\-mfpxx\fR) and \s-1FP64A \s0(\fB\-mfp64\fR \fB\-mno\-odd\-spreg\fR).
  The \s-1FPXX\s0 extension mandates that all code must execute correctly
  when run using 32\-bit or 64\-bit registers.  The code can be interlinked
  with either \s-1FP32\s0 or \s-1FP64,\s0 but not both.
--- 17143,17150 ----
  are saved.
  .Sp
  Two additional variants of the o32 \s-1ABI\s0 are supported to enable
! a transition from 32\-bit to 64\-bit registers.  These are \s-1FPXX\s0
! (\fB\-mfpxx\fR) and \s-1FP64A\s0 (\fB\-mfp64\fR \fB\-mno\-odd\-spreg\fR).
  The \s-1FPXX\s0 extension mandates that all code must execute correctly
  when run using 32\-bit or 64\-bit registers.  The code can be interlinked
  with either \s-1FP32\s0 or \s-1FP64,\s0 but not both.
*************** operations.  This is the default.
*** 17264,17271 ****
  .IX Item "-mno-odd-spreg"
  .PD
  Enable the use of odd-numbered single-precision floating-point registers
! for the o32 \s-1ABI. \s0 This is the default for processors that are known to
! support these registers.  When using the o32 \s-1FPXX ABI, \s0\fB\-mno\-odd\-spreg\fR
  is set by default.
  .IP "\fB\-mabs=2008\fR" 4
  .IX Item "-mabs=2008"
--- 17277,17284 ----
  .IX Item "-mno-odd-spreg"
  .PD
  Enable the use of odd-numbered single-precision floating-point registers
! for the o32 \s-1ABI.\s0  This is the default for processors that are known to
! support these registers.  When using the o32 \s-1FPXX ABI,\s0 \fB\-mno\-odd\-spreg\fR
  is set by default.
  .IP "\fB\-mabs=2008\fR" 4
  .IX Item "-mabs=2008"
*************** configurations; see the installation doc
*** 17334,17341 ****
  .IP "\fB\-mno\-dsp\fR" 4
  .IX Item "-mno-dsp"
  .PD
! Use (do not use) revision 1 of the \s-1MIPS DSP ASE.
!  \s0 This option defines the
  preprocessor macro \f(CW\*(C`_\|_mips_dsp\*(C'\fR.  It also defines
  \&\f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 1.
  .IP "\fB\-mdspr2\fR" 4
--- 17347,17354 ----
  .IP "\fB\-mno\-dsp\fR" 4
  .IX Item "-mno-dsp"
  .PD
! Use (do not use) revision 1 of the \s-1MIPS DSP ASE.\s0
!   This option defines the
  preprocessor macro \f(CW\*(C`_\|_mips_dsp\*(C'\fR.  It also defines
  \&\f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 1.
  .IP "\fB\-mdspr2\fR" 4
*************** preprocessor macro \f(CW\*(C`_\|_mips_ds
*** 17344,17351 ****
  .IP "\fB\-mno\-dspr2\fR" 4
  .IX Item "-mno-dspr2"
  .PD
! Use (do not use) revision 2 of the \s-1MIPS DSP ASE.
!  \s0 This option defines the
  preprocessor macros \f(CW\*(C`_\|_mips_dsp\*(C'\fR and \f(CW\*(C`_\|_mips_dspr2\*(C'\fR.
  It also defines \f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 2.
  .IP "\fB\-msmartmips\fR" 4
--- 17357,17364 ----
  .IP "\fB\-mno\-dspr2\fR" 4
  .IX Item "-mno-dspr2"
  .PD
! Use (do not use) revision 2 of the \s-1MIPS DSP ASE.\s0
!   This option defines the
  preprocessor macros \f(CW\*(C`_\|_mips_dsp\*(C'\fR and \f(CW\*(C`_\|_mips_dspr2\*(C'\fR.
  It also defines \f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 2.
  .IP "\fB\-msmartmips\fR" 4
*************** hardware floating-point support to be en
*** 17379,17385 ****
  .IP "\fB\-mno\-mips3d\fR" 4
  .IX Item "-mno-mips3d"
  .PD
! Use (do not use) the \s-1MIPS\-3D ASE.  \s0
  The option \fB\-mips3d\fR implies \fB\-mpaired\-single\fR.
  .IP "\fB\-mmicromips\fR" 4
  .IX Item "-mmicromips"
--- 17392,17398 ----
  .IP "\fB\-mno\-mips3d\fR" 4
  .IX Item "-mno-mips3d"
  .PD
! Use (do not use) the \s-1MIPS\-3D ASE.\s0  
  The option \fB\-mips3d\fR implies \fB\-mpaired\-single\fR.
  .IP "\fB\-mmicromips\fR" 4
  .IX Item "-mmicromips"
*************** determined.
*** 17436,17442 ****
  Force \f(CW\*(C`long\*(C'\fR, \f(CW\*(C`int\*(C'\fR, and pointer types to be 32 bits wide.
  .Sp
  The default size of \f(CW\*(C`int\*(C'\fRs, \f(CW\*(C`long\*(C'\fRs and pointers depends on
! the \s-1ABI. \s0 All the supported ABIs use 32\-bit \f(CW\*(C`int\*(C'\fRs.  The n64 \s-1ABI\s0
  uses 64\-bit \f(CW\*(C`long\*(C'\fRs, as does the 64\-bit \s-1EABI\s0; the others use
  32\-bit \f(CW\*(C`long\*(C'\fRs.  Pointers are the same size as \f(CW\*(C`long\*(C'\fRs,
  or the same size as integer registers, whichever is smaller.
--- 17449,17455 ----
  Force \f(CW\*(C`long\*(C'\fR, \f(CW\*(C`int\*(C'\fR, and pointer types to be 32 bits wide.
  .Sp
  The default size of \f(CW\*(C`int\*(C'\fRs, \f(CW\*(C`long\*(C'\fRs and pointers depends on
! the \s-1ABI.\s0  All the supported ABIs use 32\-bit \f(CW\*(C`int\*(C'\fRs.  The n64 \s-1ABI\s0
  uses 64\-bit \f(CW\*(C`long\*(C'\fRs, as does the 64\-bit \s-1EABI\s0; the others use
  32\-bit \f(CW\*(C`long\*(C'\fRs.  Pointers are the same size as \f(CW\*(C`long\*(C'\fRs,
  or the same size as integer registers, whichever is smaller.
*************** or the same size as integer registers, w
*** 17447,17453 ****
  .IX Item "-mno-sym32"
  .PD
  Assume (do not assume) that all symbols have 32\-bit values, regardless
! of the selected \s-1ABI. \s0 This option is useful in combination with
  \&\fB\-mabi=64\fR and \fB\-mno\-abicalls\fR because it allows \s-1GCC\s0
  to generate shorter and faster references to symbolic addresses.
  .IP "\fB\-G\fR \fInum\fR" 4
--- 17460,17466 ----
  .IX Item "-mno-sym32"
  .PD
  Assume (do not assume) that all symbols have 32\-bit values, regardless
! of the selected \s-1ABI.\s0  This option is useful in combination with
  \&\fB\-mabi=64\fR and \fB\-mno\-abicalls\fR because it allows \s-1GCC\s0
  to generate shorter and faster references to symbolic addresses.
  .IP "\fB\-G\fR \fInum\fR" 4
*************** otherwise.
*** 17736,17742 ****
  .IP "\fB\-mno\-fix\-rm7000\fR" 4
  .IX Item "-mno-fix-rm7000"
  .PD
! Work around the \s-1RM7000 \s0\f(CW\*(C`dmult\*(C'\fR/\f(CW\*(C`dmultu\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC.\s0
  .IP "\fB\-mfix\-vr4120\fR" 4
  .IX Item "-mfix-vr4120"
--- 17749,17755 ----
  .IP "\fB\-mno\-fix\-rm7000\fR" 4
  .IX Item "-mno-fix-rm7000"
  .PD
! Work around the \s-1RM7000\s0 \f(CW\*(C`dmult\*(C'\fR/\f(CW\*(C`dmultu\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC.\s0
  .IP "\fB\-mfix\-vr4120\fR" 4
  .IX Item "-mfix-vr4120"
*************** instructions.  These errata are handled
*** 17763,17772 ****
  .RE
  .IP "\fB\-mfix\-vr4130\fR" 4
  .IX Item "-mfix-vr4130"
! Work around the \s-1VR4130 \s0\f(CW\*(C`mflo\*(C'\fR/\f(CW\*(C`mfhi\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC,\s0
  although \s-1GCC\s0 avoids using \f(CW\*(C`mflo\*(C'\fR and \f(CW\*(C`mfhi\*(C'\fR if the
! \&\s-1VR4130 \s0\f(CW\*(C`macc\*(C'\fR, \f(CW\*(C`macchi\*(C'\fR, \f(CW\*(C`dmacc\*(C'\fR and \f(CW\*(C`dmacchi\*(C'\fR
  instructions are available instead.
  .IP "\fB\-mfix\-sb1\fR" 4
  .IX Item "-mfix-sb1"
--- 17776,17785 ----
  .RE
  .IP "\fB\-mfix\-vr4130\fR" 4
  .IX Item "-mfix-vr4130"
! Work around the \s-1VR4130\s0 \f(CW\*(C`mflo\*(C'\fR/\f(CW\*(C`mfhi\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC,\s0
  although \s-1GCC\s0 avoids using \f(CW\*(C`mflo\*(C'\fR and \f(CW\*(C`mfhi\*(C'\fR if the
! \&\s-1VR4130\s0 \f(CW\*(C`macc\*(C'\fR, \f(CW\*(C`macchi\*(C'\fR, \f(CW\*(C`dmacc\*(C'\fR and \f(CW\*(C`dmacchi\*(C'\fR
  instructions are available instead.
  .IP "\fB\-mfix\-sb1\fR" 4
  .IX Item "-mfix-sb1"
*************** The default is \fB\-mno\-mcount\-ra\-add
*** 17993,17999 ****
  .IP "\fB\-mno\-frame\-header\-opt\fR" 4
  .IX Item "-mno-frame-header-opt"
  .PD
! Enable (disable) frame header optimization in the o32 \s-1ABI. \s0 When using the
  o32 \s-1ABI,\s0 calling functions will allocate 16 bytes on the stack for the called
  function to write out register arguments.  When enabled, this optimization
  will suppress the allocation of the frame header if it can be determined that
--- 18006,18012 ----
  .IP "\fB\-mno\-frame\-header\-opt\fR" 4
  .IX Item "-mno-frame-header-opt"
  .PD
! Enable (disable) frame header optimization in the o32 \s-1ABI.\s0  When using the
  o32 \s-1ABI,\s0 calling functions will allocate 16 bytes on the stack for the called
  function to write out register arguments.  When enabled, this optimization
  will suppress the allocation of the frame header if it can be determined that
*************** header file.
*** 18198,18204 ****
  The option also sets the \s-1ISA\s0 to use.  If the \s-1MCU\s0 name is one that is
  known to only support the 430 \s-1ISA\s0 then that is selected, otherwise the
  430X \s-1ISA\s0 is selected.  A generic \s-1MCU\s0 name of \fBmsp430\fR can also be
! used to select the 430 \s-1ISA. \s0 Similarly the generic \fBmsp430x\fR \s-1MCU\s0
  name selects the 430X \s-1ISA.\s0
  .Sp
  In addition an MCU-specific linker script is added to the linker
--- 18211,18217 ----
  The option also sets the \s-1ISA\s0 to use.  If the \s-1MCU\s0 name is one that is
  known to only support the 430 \s-1ISA\s0 then that is selected, otherwise the
  430X \s-1ISA\s0 is selected.  A generic \s-1MCU\s0 name of \fBmsp430\fR can also be
! used to select the 430 \s-1ISA.\s0  Similarly the generic \fBmsp430x\fR \s-1MCU\s0
  name selects the 430X \s-1ISA.\s0
  .Sp
  In addition an MCU-specific linker script is added to the linker
*************** and not emit \f(CW\*(C`div\*(C'\fR and \
*** 18500,18507 ****
  .IP "\fB\-mno\-cdx\fR" 4
  .IX Item "-mno-cdx"
  .PD
! Enable or disable generation of Nios \s-1II R2 BMX \s0(bit manipulation) and
! \&\s-1CDX \s0(code density) instructions.  Enabling these instructions also
  requires \fB\-march=r2\fR.  Since these instructions are optional
  extensions to the R2 architecture, the default is not to emit them.
  .IP "\fB\-mcustom\-\fR\fIinsn\fR\fB=\fR\fIN\fR" 4
--- 18513,18520 ----
  .IP "\fB\-mno\-cdx\fR" 4
  .IX Item "-mno-cdx"
  .PD
! Enable or disable generation of Nios \s-1II R2 BMX\s0 (bit manipulation) and
! \&\s-1CDX\s0 (code density) instructions.  Enabling these instructions also
  requires \fB\-march=r2\fR.  Since these instructions are optional
  extensions to the R2 architecture, the default is not to emit them.
  .IP "\fB\-mcustom\-\fR\fIinsn\fR\fB=\fR\fIN\fR" 4
*************** function attribute
*** 18678,18687 ****
  or pragma.
  .PP
  These additional \fB\-m\fR options are available for the Altera Nios \s-1II
! ELF \s0(bare-metal) target:
  .IP "\fB\-mhal\fR" 4
  .IX Item "-mhal"
! Link with \s-1HAL BSP. \s0 This suppresses linking with the GCC-provided C runtime
  startup and termination code, and is typically used in conjunction with
  \&\fB\-msys\-crt0=\fR to specify the location of the alternate startup code
  provided by the \s-1HAL BSP.\s0
--- 18691,18700 ----
  or pragma.
  .PP
  These additional \fB\-m\fR options are available for the Altera Nios \s-1II
! ELF\s0 (bare-metal) target:
  .IP "\fB\-mhal\fR" 4
  .IX Item "-mhal"
! Link with \s-1HAL BSP.\s0  This suppresses linking with the GCC-provided C runtime
  startup and termination code, and is typically used in conjunction with
  \&\fB\-msys\-crt0=\fR to specify the location of the alternate startup code
  provided by the \s-1HAL BSP.\s0
*************** Return floating-point results in memory.
*** 18742,18748 ****
  Generate code for a \s-1PDP\-11/40.\s0
  .IP "\fB\-m45\fR" 4
  .IX Item "-m45"
! Generate code for a \s-1PDP\-11/45. \s0 This is the default.
  .IP "\fB\-m10\fR" 4
  .IX Item "-m10"
  Generate code for a \s-1PDP\-11/10.\s0
--- 18755,18761 ----
  Generate code for a \s-1PDP\-11/40.\s0
  .IP "\fB\-m45\fR" 4
  .IX Item "-m45"
! Generate code for a \s-1PDP\-11/45.\s0  This is the default.
  .IP "\fB\-m10\fR" 4
  .IX Item "-m10"
  Generate code for a \s-1PDP\-11/10.\s0
*************** work properly on all types of \s-1AE.\s0
*** 18822,18828 ****
  \&\fB\-mae=MUL\fR selects a \s-1MUL AE\s0 type.  This is the most useful \s-1AE\s0 type
  for compiled code, and is the default.
  .Sp
! \&\fB\-mae=MAC\fR selects a DSP-style \s-1MAC AE. \s0 Code compiled with this
  option may suffer from poor performance of byte (char) manipulation,
  since the \s-1DSP AE\s0 does not provide hardware support for byte load/stores.
  .IP "\fB\-msymbol\-as\-address\fR" 4
--- 18835,18841 ----
  \&\fB\-mae=MUL\fR selects a \s-1MUL AE\s0 type.  This is the most useful \s-1AE\s0 type
  for compiled code, and is the default.
  .Sp
! \&\fB\-mae=MAC\fR selects a DSP-style \s-1MAC AE.\s0  Code compiled with this
  option may suffer from poor performance of byte (char) manipulation,
  since the \s-1DSP AE\s0 does not provide hardware support for byte load/stores.
  .IP "\fB\-msymbol\-as\-address\fR" 4
*************** Specifies the type of hardware multiplic
*** 18872,18880 ****
  be used.  The simplest is \f(CW\*(C`none\*(C'\fR, which uses software for both
  multiplication and division.  This is the default.  The \f(CW\*(C`g13\*(C'\fR
  value is for the hardware multiply/divide peripheral found on the
! \&\s-1RL78/G13 \s0(S2 core) targets.  The \f(CW\*(C`g14\*(C'\fR value selects the use of
! the multiplication and division instructions supported by the \s-1RL78/G14
! \&\s0(S3 core) parts.  The value \f(CW\*(C`rl78\*(C'\fR is an alias for \f(CW\*(C`g14\*(C'\fR and
  the value \f(CW\*(C`mg10\*(C'\fR is an alias for \f(CW\*(C`none\*(C'\fR.
  .Sp
  In addition a C preprocessor macro is defined, based upon the setting
--- 18885,18893 ----
  be used.  The simplest is \f(CW\*(C`none\*(C'\fR, which uses software for both
  multiplication and division.  This is the default.  The \f(CW\*(C`g13\*(C'\fR
  value is for the hardware multiply/divide peripheral found on the
! \&\s-1RL78/G13\s0 (S2 core) targets.  The \f(CW\*(C`g14\*(C'\fR value selects the use of
! the multiplication and division instructions supported by the \s-1RL78/G14\s0
! (S3 core) parts.  The value \f(CW\*(C`rl78\*(C'\fR is an alias for \f(CW\*(C`g14\*(C'\fR and
  the value \f(CW\*(C`mg10\*(C'\fR is an alias for \f(CW\*(C`none\*(C'\fR.
  .Sp
  In addition a C preprocessor macro is defined, based upon the setting
*************** of this option.  Possible values are: \f
*** 18891,18897 ****
  .IX Item "-mcpu=rl78"
  .PD
  Specifies the \s-1RL78\s0 core to target.  The default is the G14 core, also
! known as an S3 core or just \s-1RL78. \s0 The G13 or S2 core does not have
  multiply or divide instructions, instead it uses a hardware peripheral
  for these operations.  The G10 or S1 core does not have register
  banks, so it uses a different calling convention.
--- 18904,18910 ----
  .IX Item "-mcpu=rl78"
  .PD
  Specifies the \s-1RL78\s0 core to target.  The default is the G14 core, also
! known as an S3 core or just \s-1RL78.\s0  The G13 or S2 core does not have
  multiply or divide instructions, instead it uses a hardware peripheral
  for these operations.  The G10 or S1 core does not have register
  banks, so it uses a different calling convention.
*************** These \fB\-m\fR options are defined for
*** 18991,18997 ****
  .PD
  You use these options to specify which instructions are available on the
  processor you are using.  The default value of these options is
! determined when configuring \s-1GCC. \s0 Specifying the
  \&\fB\-mcpu=\fR\fIcpu_type\fR overrides the specification of these
  options.  We recommend you use the \fB\-mcpu=\fR\fIcpu_type\fR option
  rather than the options listed above.
--- 19004,19010 ----
  .PD
  You use these options to specify which instructions are available on the
  processor you are using.  The default value of these options is
! determined when configuring \s-1GCC.\s0  Specifying the
  \&\fB\-mcpu=\fR\fIcpu_type\fR overrides the specification of these
  options.  We recommend you use the \fB\-mcpu=\fR\fIcpu_type\fR option
  rather than the options listed above.
*************** This is a PowerPC
*** 19166,19172 ****
  32\-bit \s-1SYSV ABI\s0 option.
  .IP "\fB\-mbss\-plt\fR" 4
  .IX Item "-mbss-plt"
! Generate code that uses a \s-1BSS \s0\f(CW\*(C`.plt\*(C'\fR section that \fBld.so\fR
  fills in, and
  requires \f(CW\*(C`.plt\*(C'\fR and \f(CW\*(C`.got\*(C'\fR
  sections that are both writable and executable.
--- 19179,19185 ----
  32\-bit \s-1SYSV ABI\s0 option.
  .IP "\fB\-mbss\-plt\fR" 4
  .IX Item "-mbss-plt"
! Generate code that uses a \s-1BSS\s0 \f(CW\*(C`.plt\*(C'\fR section that \fBld.so\fR
  fills in, and
  requires \f(CW\*(C`.plt\*(C'\fR and \f(CW\*(C`.got\*(C'\fR
  sections that are both writable and executable.
*************** later processors.
*** 19259,19265 ****
  .IX Item "-mno-power8-vector"
  .PD
  Generate code that uses (does not use) the vector and scalar
! instructions that were added in version 2.07 of the PowerPC \s-1ISA. \s0 Also
  enable the use of built-in functions that allow more direct access to
  the vector instructions.
  .IP "\fB\-mquad\-memory\fR" 4
--- 19272,19278 ----
  .IX Item "-mno-power8-vector"
  .PD
  Generate code that uses (does not use) the vector and scalar
! instructions that were added in version 2.07 of the PowerPC \s-1ISA.\s0  Also
  enable the use of built-in functions that allow more direct access to
  the vector instructions.
  .IP "\fB\-mquad\-memory\fR" 4
*************** instructions.  The \fB\-mquad\-memory\-a
*** 19289,19295 ****
  Generate code that uses (does not use) the scalar double precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.06 of the
! PowerPC \s-1ISA.  \s0\fB\-mupper\-regs\-df\fR is turned on by default if you
  use any of the \fB\-mcpu=power7\fR, \fB\-mcpu=power8\fR, or
  \&\fB\-mvsx\fR options.
  .IP "\fB\-mupper\-regs\-sf\fR" 4
--- 19302,19308 ----
  Generate code that uses (does not use) the scalar double precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.06 of the
! PowerPC \s-1ISA.\s0  \fB\-mupper\-regs\-df\fR is turned on by default if you
  use any of the \fB\-mcpu=power7\fR, \fB\-mcpu=power8\fR, or
  \&\fB\-mvsx\fR options.
  .IP "\fB\-mupper\-regs\-sf\fR" 4
*************** use any of the \fB\-mcpu=power7\fR, \fB\
*** 19301,19307 ****
  Generate code that uses (does not use) the scalar single precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.07 of the
! PowerPC \s-1ISA.  \s0\fB\-mupper\-regs\-sf\fR is turned on by default if you
  use either of the \fB\-mcpu=power8\fR, \fB\-mpower8\-vector\fR, or
  \&\fB\-mcpu=power9\fR options.
  .IP "\fB\-mupper\-regs\fR" 4
--- 19314,19320 ----
  Generate code that uses (does not use) the scalar single precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.07 of the
! PowerPC \s-1ISA.\s0  \fB\-mupper\-regs\-sf\fR is turned on by default if you
  use either of the \fB\-mcpu=power8\fR, \fB\-mpower8\-vector\fR, or
  \&\fB\-mcpu=power9\fR options.
  .IP "\fB\-mupper\-regs\fR" 4
*************** pointer to 64 bits, and generates code f
*** 19392,19402 ****
  .IP "\fB\-mminimal\-toc\fR" 4
  .IX Item "-mminimal-toc"
  .PD
! Modify generation of the \s-1TOC \s0(Table Of Contents), which is created for
  every executable file.  The \fB\-mfull\-toc\fR option is selected by
  default.  In that case, \s-1GCC\s0 allocates at least one \s-1TOC\s0 entry for
  each unique non-automatic variable reference in your program.  \s-1GCC\s0
! also places floating-point constants in the \s-1TOC. \s0 However, only
  16,384 entries are available in the \s-1TOC.\s0
  .Sp
  If you receive a linker error message that saying you have overflowed
--- 19405,19415 ----
  .IP "\fB\-mminimal\-toc\fR" 4
  .IX Item "-mminimal-toc"
  .PD
! Modify generation of the \s-1TOC\s0 (Table Of Contents), which is created for
  every executable file.  The \fB\-mfull\-toc\fR option is selected by
  default.  In that case, \s-1GCC\s0 allocates at least one \s-1TOC\s0 entry for
  each unique non-automatic variable reference in your program.  \s-1GCC\s0
! also places floating-point constants in the \s-1TOC.\s0  However, only
  16,384 entries are available in the \s-1TOC.\s0
  .Sp
  If you receive a linker error message that saying you have overflowed
*************** with the \fB\-mno\-fp\-in\-toc\fR and \f
*** 19405,19411 ****
  \&\fB\-mno\-fp\-in\-toc\fR prevents \s-1GCC\s0 from putting floating-point
  constants in the \s-1TOC\s0 and \fB\-mno\-sum\-in\-toc\fR forces \s-1GCC\s0 to
  generate code to calculate the sum of an address and a constant at
! run time instead of putting that sum into the \s-1TOC. \s0 You may specify one
  or both of these options.  Each causes \s-1GCC\s0 to produce very slightly
  slower and larger code at the expense of conserving \s-1TOC\s0 space.
  .Sp
--- 19418,19424 ----
  \&\fB\-mno\-fp\-in\-toc\fR prevents \s-1GCC\s0 from putting floating-point
  constants in the \s-1TOC\s0 and \fB\-mno\-sum\-in\-toc\fR forces \s-1GCC\s0 to
  generate code to calculate the sum of an address and a constant at
! run time instead of putting that sum into the \s-1TOC.\s0  You may specify one
  or both of these options.  Each causes \s-1GCC\s0 to produce very slightly
  slower and larger code at the expense of conserving \s-1TOC\s0 space.
  .Sp
*************** implies \fB\-mno\-powerpc64\fR.  \s-1GCC
*** 19433,19439 ****
  .IX Item "-mno-xl-compat"
  .PD
  Produce code that conforms more closely to \s-1IBM XL\s0 compiler semantics
! when using AIX-compatible \s-1ABI. \s0 Pass floating-point arguments to
  prototyped functions beyond the register save area (\s-1RSA\s0) on the stack
  in addition to argument FPRs.  Do not assume that most significant
  double in 128\-bit long double value is properly rounded when comparing
--- 19446,19452 ----
  .IX Item "-mno-xl-compat"
  .PD
  Produce code that conforms more closely to \s-1IBM XL\s0 compiler semantics
! when using AIX-compatible \s-1ABI.\s0  Pass floating-point arguments to
  prototyped functions beyond the register save area (\s-1RSA\s0) on the stack
  in addition to argument FPRs.  Do not assume that most significant
  double in 128\-bit long double value is properly rounded when comparing
*************** other \fB\-msdata\fR options are used.
*** 19914,19919 ****
--- 19927,19940 ----
  On embedded PowerPC systems, put all initialized global and static data
  in the \f(CW\*(C`.data\*(C'\fR section, and all uninitialized data in the
  \&\f(CW\*(C`.bss\*(C'\fR section.
+ .IP "\fB\-mreadonly\-in\-sdata\fR" 4
+ .IX Item "-mreadonly-in-sdata"
+ .PD 0
+ .IP "\fB\-mreadonly\-in\-sdata\fR" 4
+ .IX Item "-mreadonly-in-sdata"
+ .PD
+ Put read-only objects in the \f(CW\*(C`.sdata\*(C'\fR section as well.  This is the
+ default.
  .IP "\fB\-mblock\-move\-inline\-limit=\fR\fInum\fR" 4
  .IX Item "-mblock-move-inline-limit=num"
  Inline all block moves (such as calls to \f(CW\*(C`memcpy\*(C'\fR or structure
*************** On Darwin/PPC systems, \f(CW\*(C`#pragma
*** 19959,19965 ****
  callee, L42\*(C'\fR, plus a \fIbranch island\fR (glue code).  The two target
  addresses represent the callee and the branch island.  The
  Darwin/PPC linker prefers the first address and generates a \f(CW\*(C`bl
! callee\*(C'\fR if the \s-1PPC \s0\f(CW\*(C`bl\*(C'\fR instruction reaches the callee directly;
  otherwise, the linker generates \f(CW\*(C`bl L42\*(C'\fR to call the branch
  island.  The branch island is appended to the body of the
  calling function; it computes the full 32\-bit address of the callee
--- 19980,19986 ----
  callee, L42\*(C'\fR, plus a \fIbranch island\fR (glue code).  The two target
  addresses represent the callee and the branch island.  The
  Darwin/PPC linker prefers the first address and generates a \f(CW\*(C`bl
! callee\*(C'\fR if the \s-1PPC\s0 \f(CW\*(C`bl\*(C'\fR instruction reaches the callee directly;
  otherwise, the linker generates \f(CW\*(C`bl L42\*(C'\fR to call the branch
  island.  The branch island is appended to the body of the
  calling function; it computes the full 32\-bit address of the callee
*************** which handle the double-precision recipr
*** 20055,20061 ****
  .PD
  Assume (do not assume) that the reciprocal estimate instructions
  provide higher-precision estimates than is mandated by the PowerPC
! \&\s-1ABI. \s0 Selecting \fB\-mcpu=power6\fR, \fB\-mcpu=power7\fR or
  \&\fB\-mcpu=power8\fR automatically selects \fB\-mrecip\-precision\fR.
  The double-precision square root estimate instructions are not generated by
  default on low-precision machines, since they do not provide an
--- 20076,20082 ----
  .PD
  Assume (do not assume) that the reciprocal estimate instructions
  provide higher-precision estimates than is mandated by the PowerPC
! \&\s-1ABI.\s0  Selecting \fB\-mcpu=power6\fR, \fB\-mcpu=power7\fR or
  \&\fB\-mcpu=power8\fR automatically selects \fB\-mrecip\-precision\fR.
  The double-precision square root estimate instructions are not generated by
  default on low-precision machines, since they do not provide an
*************** Generate (do not generate) code to pass
*** 20130,20139 ****
  maximum alignment of 64 bits, for compatibility with older versions
  of \s-1GCC.\s0
  .Sp
! Older versions of \s-1GCC \s0(prior to 4.9.0) incorrectly did not align a
  structure parameter on a 128\-bit boundary when that structure contained
  a member requiring 128\-bit alignment.  This is corrected in more
! recent versions of \s-1GCC. \s0 This option may be used to generate code
  that is compatible with functions compiled with older versions of
  \&\s-1GCC.\s0
  .Sp
--- 20151,20160 ----
  maximum alignment of 64 bits, for compatibility with older versions
  of \s-1GCC.\s0
  .Sp
! Older versions of \s-1GCC\s0 (prior to 4.9.0) incorrectly did not align a
  structure parameter on a 128\-bit boundary when that structure contained
  a member requiring 128\-bit alignment.  This is corrected in more
! recent versions of \s-1GCC.\s0  This option may be used to generate code
  that is compatible with functions compiled with older versions of
  \&\s-1GCC.\s0
  .Sp
*************** This is because the \s-1RX FPU\s0 instru
*** 20175,20181 ****
  .IX Item "-mcpu=name"
  Selects the type of \s-1RX CPU\s0 to be targeted.  Currently three types are
  supported, the generic \fB\s-1RX600\s0\fR and \fB\s-1RX200\s0\fR series hardware and
! the specific \fB\s-1RX610\s0\fR \s-1CPU. \s0 The default is \fB\s-1RX600\s0\fR.
  .Sp
  The only difference between \fB\s-1RX600\s0\fR and \fB\s-1RX610\s0\fR is that the
  \&\fB\s-1RX610\s0\fR does not support the \f(CW\*(C`MVTIPL\*(C'\fR instruction.
--- 20196,20202 ----
  .IX Item "-mcpu=name"
  Selects the type of \s-1RX CPU\s0 to be targeted.  Currently three types are
  supported, the generic \fB\s-1RX600\s0\fR and \fB\s-1RX200\s0\fR series hardware and
! the specific \fB\s-1RX610\s0\fR \s-1CPU.\s0  The default is \fB\s-1RX600\s0\fR.
  .Sp
  The only difference between \fB\s-1RX600\s0\fR and \fB\s-1RX610\s0\fR is that the
  \&\fB\s-1RX610\s0\fR does not support the \f(CW\*(C`MVTIPL\*(C'\fR instruction.
*************** which does not have this limitation.
*** 20453,20460 ****
  .IX Item "-m31"
  .PD
  When \fB\-m31\fR is specified, generate code compliant to the
! GNU/Linux for S/390 \s-1ABI. \s0 When \fB\-m64\fR is specified, generate
! code compliant to the GNU/Linux for zSeries \s-1ABI. \s0 This allows \s-1GCC\s0 in
  particular to generate 64\-bit instructions.  For the \fBs390\fR
  targets, the default is \fB\-m31\fR, while the \fBs390x\fR
  targets default to \fB\-m64\fR.
--- 20474,20481 ----
  .IX Item "-m31"
  .PD
  When \fB\-m31\fR is specified, generate code compliant to the
! GNU/Linux for S/390 \s-1ABI.\s0  When \fB\-m64\fR is specified, generate
! code compliant to the GNU/Linux for zSeries \s-1ABI.\s0  This allows \s-1GCC\s0 in
  particular to generate 64\-bit instructions.  For the \fBs390\fR
  targets, the default is \fB\-m31\fR, while the \fBs390x\fR
  targets default to \fB\-m64\fR.
*************** targets default to \fB\-m64\fR.
*** 20467,20473 ****
  When \fB\-mzarch\fR is specified, generate code using the
  instructions available on z/Architecture.
  When \fB\-mesa\fR is specified, generate code using the
! instructions available on \s-1ESA/390. \s0 Note that \fB\-mesa\fR is
  not possible with \fB\-m64\fR.
  When generating code compliant to the GNU/Linux for S/390 \s-1ABI,\s0
  the default is \fB\-mesa\fR.  When generating code compliant
--- 20488,20494 ----
  When \fB\-mzarch\fR is specified, generate code using the
  instructions available on z/Architecture.
  When \fB\-mesa\fR is specified, generate code using the
! instructions available on \s-1ESA/390.\s0  Note that \fB\-mesa\fR is
  not possible with \fB\-m64\fR.
  When generating code compliant to the GNU/Linux for S/390 \s-1ABI,\s0
  the default is \fB\-mesa\fR.  When generating code compliant
*************** available with the vector extension faci
*** 20494,20500 ****
  z13 machine generation.
  This option changes the \s-1ABI\s0 for some vector type values with regard to
  alignment and calling conventions.  In case vector type values are
! being used in an ABI-relevant context a \s-1GAS \s0\fB.gnu_attribute\fR
  command will be added to mark the resulting binary with the \s-1ABI\s0 used.
  \&\fB\-mvx\fR is enabled by default when using \fB\-march=z13\fR.
  .IP "\fB\-mzvector\fR" 4
--- 20515,20521 ----
  z13 machine generation.
  This option changes the \s-1ABI\s0 for some vector type values with regard to
  alignment and calling conventions.  In case vector type values are
! being used in an ABI-relevant context a \s-1GAS\s0 \fB.gnu_attribute\fR
  command will be added to mark the resulting binary with the \s-1ABI\s0 used.
  \&\fB\-mvx\fR is enabled by default when using \fB\-march=z13\fR.
  .IP "\fB\-mzvector\fR" 4
*************** Generate code for \s-1SH4\-300\s0 in suc
*** 20738,20747 ****
  floating-point operations are used.
  .IP "\fB\-m4\-340\fR" 4
  .IX Item "-m4-340"
! Generate code for \s-1SH4\-340 \s0(no \s-1MMU,\s0 no \s-1FPU\s0).
  .IP "\fB\-m4\-500\fR" 4
  .IX Item "-m4-500"
! Generate code for \s-1SH4\-500 \s0(no \s-1FPU\s0).  Passes \fB\-isa=sh4\-nofpu\fR to the
  assembler.
  .IP "\fB\-m4a\-nofpu\fR" 4
  .IX Item "-m4a-nofpu"
--- 20759,20768 ----
  floating-point operations are used.
  .IP "\fB\-m4\-340\fR" 4
  .IX Item "-m4-340"
! Generate code for \s-1SH4\-340\s0 (no \s-1MMU,\s0 no \s-1FPU\s0).
  .IP "\fB\-m4\-500\fR" 4
  .IX Item "-m4-500"
! Generate code for \s-1SH4\-500\s0 (no \s-1FPU\s0).  Passes \fB\-isa=sh4\-nofpu\fR to the
  assembler.
  .IP "\fB\-m4a\-nofpu\fR" 4
  .IX Item "-m4a-nofpu"
*************** SH2A\s0 and SHcompact.
*** 20934,20947 ****
  .IX Item "call-fp"
  Calls a library function that performs the operation in double precision
  floating point.  Division by zero causes a floating-point exception.  This is
! the default for SHcompact with \s-1FPU. \s0 Specifying this for targets that do not
  have a double precision \s-1FPU\s0 defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .IP "\fBcall-table\fR" 4
  .IX Item "call-table"
  Calls a library function that uses a lookup table for small divisors and
  the \f(CW\*(C`div1\*(C'\fR instruction with case distinction for larger divisors.  Division
  by zero calculates an unspecified result and does not trap.  This is the default
! for \s-1SH4. \s0 Specifying this for targets that do not have dynamic shift
  instructions defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .RE
  .RS 4
--- 20955,20968 ----
  .IX Item "call-fp"
  Calls a library function that performs the operation in double precision
  floating point.  Division by zero causes a floating-point exception.  This is
! the default for SHcompact with \s-1FPU.\s0  Specifying this for targets that do not
  have a double precision \s-1FPU\s0 defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .IP "\fBcall-table\fR" 4
  .IX Item "call-table"
  Calls a library function that uses a lookup table for small divisors and
  the \f(CW\*(C`div1\*(C'\fR instruction with case distinction for larger divisors.  Division
  by zero calculates an unspecified result and does not trap.  This is the default
! for \s-1SH4.\s0  Specifying this for targets that do not have dynamic shift
  instructions defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .RE
  .RS 4
*************** is being compiled for.
*** 20985,20991 ****
  Assume (do not assume) that zero displacement conditional branch instructions
  \&\f(CW\*(C`bt\*(C'\fR and \f(CW\*(C`bf\*(C'\fR are fast.  If \fB\-mzdcbranch\fR is specified, the
  compiler prefers zero displacement branch code sequences.  This is
! enabled by default when generating code for \s-1SH4\s0 and \s-1SH4A. \s0 It can be explicitly
  disabled by specifying \fB\-mno\-zdcbranch\fR.
  .IP "\fB\-mcbranch\-force\-delay\-slot\fR" 4
  .IX Item "-mcbranch-force-delay-slot"
--- 21006,21012 ----
  Assume (do not assume) that zero displacement conditional branch instructions
  \&\f(CW\*(C`bt\*(C'\fR and \f(CW\*(C`bf\*(C'\fR are fast.  If \fB\-mzdcbranch\fR is specified, the
  compiler prefers zero displacement branch code sequences.  This is
! enabled by default when generating code for \s-1SH4\s0 and \s-1SH4A.\s0  It can be explicitly
  disabled by specifying \fB\-mno\-zdcbranch\fR.
  .IP "\fB\-mcbranch\-force\-delay\-slot\fR" 4
  .IX Item "-mcbranch-force-delay-slot"
*************** mapped to \fB\-ffp\-contract=off\fR.
*** 21014,21020 ****
  Allow or disallow the compiler to emit the \f(CW\*(C`fsca\*(C'\fR instruction for sine
  and cosine approximations.  The option \fB\-mfsca\fR must be used in
  combination with \fB\-funsafe\-math\-optimizations\fR.  It is enabled by default
! when generating code for \s-1SH4A. \s0 Using \fB\-mno\-fsca\fR disables sine and cosine
  approximations even if \fB\-funsafe\-math\-optimizations\fR is in effect.
  .IP "\fB\-mfsrra\fR" 4
  .IX Item "-mfsrra"
--- 21035,21041 ----
  Allow or disallow the compiler to emit the \f(CW\*(C`fsca\*(C'\fR instruction for sine
  and cosine approximations.  The option \fB\-mfsca\fR must be used in
  combination with \fB\-funsafe\-math\-optimizations\fR.  It is enabled by default
! when generating code for \s-1SH4A.\s0  Using \fB\-mno\-fsca\fR disables sine and cosine
  approximations even if \fB\-funsafe\-math\-optimizations\fR is in effect.
  .IP "\fB\-mfsrra\fR" 4
  .IX Item "-mfsrra"
*************** Allow or disallow the compiler to emit t
*** 21026,21032 ****
  reciprocal square root approximations.  The option \fB\-mfsrra\fR must be used
  in combination with \fB\-funsafe\-math\-optimizations\fR and
  \&\fB\-ffinite\-math\-only\fR.  It is enabled by default when generating code for
! \&\s-1SH4A. \s0 Using \fB\-mno\-fsrra\fR disables reciprocal square root approximations
  even if \fB\-funsafe\-math\-optimizations\fR and \fB\-ffinite\-math\-only\fR are
  in effect.
  .IP "\fB\-mpretend\-cmove\fR" 4
--- 21047,21053 ----
  reciprocal square root approximations.  The option \fB\-mfsrra\fR must be used
  in combination with \fB\-funsafe\-math\-optimizations\fR and
  \&\fB\-ffinite\-math\-only\fR.  It is enabled by default when generating code for
! \&\s-1SH4A.\s0  Using \fB\-mno\-fsrra\fR disables reciprocal square root approximations
  even if \fB\-funsafe\-math\-optimizations\fR and \fB\-ffinite\-math\-only\fR are
  in effect.
  .IP "\fB\-mpretend\-cmove\fR" 4
*************** instructions.
*** 21139,21145 ****
  .IX Item "-msoft-quad-float"
  Generate output containing library calls for quad-word (long double)
  floating-point instructions.  The functions called are those specified
! in the \s-1SPARC ABI. \s0 This is the default.
  .Sp
  As of this writing, there are no \s-1SPARC\s0 implementations that have hardware
  support for the quad-word floating-point instructions.  They all invoke
--- 21160,21166 ----
  .IX Item "-msoft-quad-float"
  Generate output containing library calls for quad-word (long double)
  floating-point instructions.  The functions called are those specified
! in the \s-1SPARC ABI.\s0  This is the default.
  .Sp
  As of this writing, there are no \s-1SPARC\s0 implementations that have hardware
  support for the quad-word floating-point instructions.  They all invoke
*************** should have 8\-byte alignment.  This ena
*** 21181,21187 ****
  \&\f(CW\*(C`ldd\*(C'\fR and \f(CW\*(C`std\*(C'\fR instructions for copies in structure
  assignment, in place of twice as many \f(CW\*(C`ld\*(C'\fR and \f(CW\*(C`st\*(C'\fR pairs.
  However, the use of this changed alignment directly violates the \s-1SPARC
! ABI. \s0 Thus, it's intended only for use on targets where the developer
  acknowledges that their resulting code is not directly in line with
  the rules of the \s-1ABI.\s0
  .IP "\fB\-mstd\-struct\-return\fR" 4
--- 21202,21208 ----
  \&\f(CW\*(C`ldd\*(C'\fR and \f(CW\*(C`std\*(C'\fR instructions for copies in structure
  assignment, in place of twice as many \f(CW\*(C`ld\*(C'\fR and \f(CW\*(C`st\*(C'\fR pairs.
  However, the use of this changed alignment directly violates the \s-1SPARC
! ABI.\s0  Thus, it's intended only for use on targets where the developer
  acknowledges that their resulting code is not directly in line with
  the rules of the \s-1ABI.\s0
  .IP "\fB\-mstd\-struct\-return\fR" 4
*************** SPARCStation 1, 2, \s-1IPX\s0 etc.
*** 21245,21251 ****
  With \fB\-mcpu=v8\fR, \s-1GCC\s0 generates code for the V8 variant of the \s-1SPARC\s0
  architecture.  The only difference from V7 code is that the compiler emits
  the integer multiply and integer divide instructions which exist in \s-1SPARC\-V8\s0
! but not in \s-1SPARC\-V7. \s0 With \fB\-mcpu=supersparc\fR, the compiler additionally
  optimizes it for the SuperSPARC chip, as used in the SPARCStation 10, 1000 and
  2000 series.
  .Sp
--- 21266,21272 ----
  With \fB\-mcpu=v8\fR, \s-1GCC\s0 generates code for the V8 variant of the \s-1SPARC\s0
  architecture.  The only difference from V7 code is that the compiler emits
  the integer multiply and integer divide instructions which exist in \s-1SPARC\-V8\s0
! but not in \s-1SPARC\-V7.\s0  With \fB\-mcpu=supersparc\fR, the compiler additionally
  optimizes it for the SuperSPARC chip, as used in the SPARCStation 10, 1000 and
  2000 series.
  .Sp
*************** With \fB\-mcpu=sparclite\fR, \s-1GCC\s0
*** 21253,21266 ****
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, integer divide step
  and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClite but not in \s-1SPARC\-V7.\s0
  With \fB\-mcpu=f930\fR, the compiler additionally optimizes it for the
! Fujitsu \s-1MB86930\s0 chip, which is the original SPARClite, with no \s-1FPU. \s0 With
  \&\fB\-mcpu=f934\fR, the compiler additionally optimizes it for the Fujitsu
  \&\s-1MB86934\s0 chip, which is the more recent SPARClite with \s-1FPU.\s0
  .Sp
  With \fB\-mcpu=sparclet\fR, \s-1GCC\s0 generates code for the SPARClet variant of
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, multiply/accumulate,
  integer divide step and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClet
! but not in \s-1SPARC\-V7. \s0 With \fB\-mcpu=tsc701\fR, the compiler additionally
  optimizes it for the \s-1TEMIC\s0 SPARClet chip.
  .Sp
  With \fB\-mcpu=v9\fR, \s-1GCC\s0 generates code for the V9 variant of the \s-1SPARC\s0
--- 21274,21287 ----
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, integer divide step
  and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClite but not in \s-1SPARC\-V7.\s0
  With \fB\-mcpu=f930\fR, the compiler additionally optimizes it for the
! Fujitsu \s-1MB86930\s0 chip, which is the original SPARClite, with no \s-1FPU.\s0  With
  \&\fB\-mcpu=f934\fR, the compiler additionally optimizes it for the Fujitsu
  \&\s-1MB86934\s0 chip, which is the more recent SPARClite with \s-1FPU.\s0
  .Sp
  With \fB\-mcpu=sparclet\fR, \s-1GCC\s0 generates code for the SPARClet variant of
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, multiply/accumulate,
  integer divide step and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClet
! but not in \s-1SPARC\-V7.\s0  With \fB\-mcpu=tsc701\fR, the compiler additionally
  optimizes it for the \s-1TEMIC\s0 SPARClet chip.
  .Sp
  With \fB\-mcpu=v9\fR, \s-1GCC\s0 generates code for the V9 variant of the \s-1SPARC\s0
*************** GNU/Linux toolchains, \fBnative\fR can a
*** 21300,21306 ****
  .IP "\fB\-mno\-v8plus\fR" 4
  .IX Item "-mno-v8plus"
  .PD
! With \fB\-mv8plus\fR, \s-1GCC\s0 generates code for the \s-1SPARC\-V8+ ABI. \s0 The
  difference from the V8 \s-1ABI\s0 is that the global and out registers are
  considered 64 bits wide.  This is enabled by default on Solaris in 32\-bit
  mode for all \s-1SPARC\-V9\s0 processors.
--- 21321,21327 ----
  .IP "\fB\-mno\-v8plus\fR" 4
  .IX Item "-mno-v8plus"
  .PD
! With \fB\-mv8plus\fR, \s-1GCC\s0 generates code for the \s-1SPARC\-V8+ ABI.\s0  The
  difference from the V8 \s-1ABI\s0 is that the global and out registers are
  considered 64 bits wide.  This is enabled by default on Solaris in 32\-bit
  mode for all \s-1SPARC\-V9\s0 processors.
*************** selected because its use is still experi
*** 21808,21814 ****
  .IP "\fB\-mghs\fR" 4
  .IX Item "-mghs"
  .PD
! Enables support for the \s-1RH850\s0 version of the V850 \s-1ABI. \s0 This is the
  default.  With this version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
--- 21829,21835 ----
  .IP "\fB\-mghs\fR" 4
  .IX Item "-mghs"
  .PD
! Enables support for the \s-1RH850\s0 version of the V850 \s-1ABI.\s0  This is the
  default.  With this version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
*************** When this version of the \s-1ABI\s0 is e
*** 21833,21839 ****
  .RE
  .IP "\fB\-mgcc\-abi\fR" 4
  .IX Item "-mgcc-abi"
! Enables support for the old \s-1GCC\s0 version of the V850 \s-1ABI. \s0 With this
  version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
--- 21854,21860 ----
  .RE
  .IP "\fB\-mgcc\-abi\fR" 4
  .IX Item "-mgcc-abi"
! Enables support for the old \s-1GCC\s0 version of the V850 \s-1ABI.\s0  With this
  version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
*************** of the selected instruction set.
*** 22043,22049 ****
  Original Intel i386 \s-1CPU.\s0
  .IP "\fBi486\fR" 4
  .IX Item "i486"
! Intel i486 \s-1CPU.  \s0(No scheduling is implemented for this chip.)
  .IP "\fBi586\fR" 4
  .IX Item "i586"
  .PD 0
--- 22064,22070 ----
  Original Intel i386 \s-1CPU.\s0
  .IP "\fBi486\fR" 4
  .IX Item "i486"
! Intel i486 \s-1CPU.\s0  (No scheduling is implemented for this chip.)
  .IP "\fBi586\fR" 4
  .IX Item "i586"
  .PD 0
*************** extensions.)
*** 22227,22241 ****
  .IP "\fBbdver3\fR" 4
  .IX Item "bdver3"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, XOP, LWP, AES, 
! PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM\s0 and 
  64\-bit instruction set extensions.
  .IP "\fBbdver4\fR" 4
  .IX Item "bdver4"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, BMI2, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, AVX2, XOP, LWP, 
! AES, PCL_MUL, CX16, MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, 
! SSE4.2, ABM\s0 and 64\-bit instruction set extensions.
  .IP "\fBznver1\fR" 4
  .IX Item "znver1"
  \&\s-1AMD\s0 Family 17h core based CPUs with x86\-64 instruction set support.  (This
--- 22248,22262 ----
  .IP "\fBbdver3\fR" 4
  .IX Item "bdver3"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, XOP, LWP, AES,\s0 
! \&\s-1PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM\s0 and 
  64\-bit instruction set extensions.
  .IP "\fBbdver4\fR" 4
  .IX Item "bdver4"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, BMI2, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, AVX2, XOP, LWP,\s0 
! \&\s-1AES, PCL_MUL, CX16, MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1,\s0 
! \&\s-1SSE4.2, ABM\s0 and 64\-bit instruction set extensions.
  .IP "\fBznver1\fR" 4
  .IX Item "znver1"
  \&\s-1AMD\s0 Family 17h core based CPUs with x86\-64 instruction set support.  (This
*************** instruction set support.
*** 22267,22273 ****
  implemented for this chip.)
  .IP "\fBc3\-2\fR" 4
  .IX Item "c3-2"
! \&\s-1VIA C3\-2 \s0(Nehemiah/C5XL) \s-1CPU\s0 with \s-1MMX\s0 and \s-1SSE\s0 instruction set support.
  (No scheduling is
  implemented for this chip.)
  .IP "\fBgeode\fR" 4
--- 22288,22294 ----
  implemented for this chip.)
  .IP "\fBc3\-2\fR" 4
  .IX Item "c3-2"
! \&\s-1VIA C3\-2\s0 (Nehemiah/C5XL) \s-1CPU\s0 with \s-1MMX\s0 and \s-1SSE\s0 instruction set support.
  (No scheduling is
  implemented for this chip.)
  .IP "\fBgeode\fR" 4
*************** processors) for which the code is optimi
*** 22313,22319 ****
  .IP "\fBintel\fR" 4
  .IX Item "intel"
  Produce code optimized for the most current Intel processors, which are
! Haswell and Silvermont for this version of \s-1GCC. \s0 If you know the \s-1CPU\s0
  on which your code will run, then you should use the corresponding
  \&\fB\-mtune\fR or \fB\-march\fR option instead of \fB\-mtune=intel\fR.
  But, if you want your application performs better on both Haswell and
--- 22334,22340 ----
  .IP "\fBintel\fR" 4
  .IX Item "intel"
  Produce code optimized for the most current Intel processors, which are
! Haswell and Silvermont for this version of \s-1GCC.\s0  If you know the \s-1CPU\s0
  on which your code will run, then you should use the corresponding
  \&\fB\-mtune\fR or \fB\-march\fR option instead of \fB\-mtune=intel\fR.
  But, if you want your application performs better on both Haswell and
*************** Do not use the \s-1FPU\s0 registers for
*** 22421,22427 ****
  .Sp
  The usual calling convention has functions return values of types
  \&\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR in an \s-1FPU\s0 register, even if there
! is no \s-1FPU. \s0 The idea is that the operating system should emulate
  an \s-1FPU.\s0
  .Sp
  The option \fB\-mno\-fp\-ret\-in\-387\fR causes such values to be returned
--- 22442,22448 ----
  .Sp
  The usual calling convention has functions return values of types
  \&\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR in an \s-1FPU\s0 register, even if there
! is no \s-1FPU.\s0  The idea is that the operating system should emulate
  an \s-1FPU.\s0
  .Sp
  The option \fB\-mno\-fp\-ret\-in\-387\fR causes such values to be returned
*************** preferred alignment to \fB\-mpreferred\-
*** 22693,22700 ****
  .IX Item "-maes"
  .IP "\fB\-mpclmul\fR" 4
  .IX Item "-mpclmul"
! .IP "\fB\-mclfushopt\fR" 4
! .IX Item "-mclfushopt"
  .IP "\fB\-mfsgsbase\fR" 4
  .IX Item "-mfsgsbase"
  .IP "\fB\-mrdrnd\fR" 4
--- 22714,22721 ----
  .IX Item "-maes"
  .IP "\fB\-mpclmul\fR" 4
  .IX Item "-mpclmul"
! .IP "\fB\-mclflushopt\fR" 4
! .IX Item "-mclflushopt"
  .IP "\fB\-mfsgsbase\fR" 4
  .IX Item "-mfsgsbase"
  .IP "\fB\-mrdrnd\fR" 4
*************** external library.  Supported values for
*** 22903,22909 ****
  for the Intel short
  vector math library and \fBacml\fR for the \s-1AMD\s0 math core library.
  To use this option, both \fB\-ftree\-vectorize\fR and
! \&\fB\-funsafe\-math\-optimizations\fR have to be enabled, and an \s-1SVML\s0 or \s-1ACML \s0
  ABI-compatible library must be specified at link time.
  .Sp
  \&\s-1GCC\s0 currently emits calls to \f(CW\*(C`vmldExp2\*(C'\fR,
--- 22924,22930 ----
  for the Intel short
  vector math library and \fBacml\fR for the \s-1AMD\s0 math core library.
  To use this option, both \fB\-ftree\-vectorize\fR and
! \&\fB\-funsafe\-math\-optimizations\fR have to be enabled, and an \s-1SVML\s0 or \s-1ACML\s0 
  ABI-compatible library must be specified at link time.
  .Sp
  \&\s-1GCC\s0 currently emits calls to \f(CW\*(C`vmldExp2\*(C'\fR,
*************** when \fB\-mveclibabi=acml\fR is used.
*** 22926,22932 ****
  .IX Item "-mabi=name"
  Generate code for the specified calling convention.  Permissible values
  are \fBsysv\fR for the \s-1ABI\s0 used on GNU/Linux and other systems, and
! \&\fBms\fR for the Microsoft \s-1ABI. \s0 The default is to use the Microsoft
  \&\s-1ABI\s0 when targeting Microsoft Windows and the SysV \s-1ABI\s0 on all other systems.
  You can control this behavior for specific functions by
  using the function attributes \f(CW\*(C`ms_abi\*(C'\fR and \f(CW\*(C`sysv_abi\*(C'\fR.
--- 22947,22953 ----
  .IX Item "-mabi=name"
  Generate code for the specified calling convention.  Permissible values
  are \fBsysv\fR for the \s-1ABI\s0 used on GNU/Linux and other systems, and
! \&\fBms\fR for the Microsoft \s-1ABI.\s0  The default is to use the Microsoft
  \&\s-1ABI\s0 when targeting Microsoft Windows and the SysV \s-1ABI\s0 on all other systems.
  You can control this behavior for specific functions by
  using the function attributes \f(CW\*(C`ms_abi\*(C'\fR and \f(CW\*(C`sysv_abi\*(C'\fR.
*************** Try to avoid generating code sequences t
*** 23259,23264 ****
--- 23280,23317 ----
  opcodes, to mitigate against certain forms of attack. At the moment,
  this option is limited in what it can do and should not be relied
  on to provide serious protection.
+ .IP "\fB\-mindirect\-branch=\fR\fIchoice\fR" 4
+ .IX Item "-mindirect-branch=choice"
+ Convert indirect call and jump with \fIchoice\fR.  The default is
+ \&\fBkeep\fR, which keeps indirect call and jump unmodified.
+ \&\fBthunk\fR converts indirect call and jump to call and return thunk.
+ \&\fBthunk-inline\fR converts indirect call and jump to inlined call
+ and return thunk.  \fBthunk-extern\fR converts indirect call and jump
+ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute \f(CW\*(C`indirect_branch\*(C'\fR.
+ .Sp
+ Note that \fB\-mcmodel=large\fR is incompatible with
+ \&\fB\-mindirect\-branch=thunk\fR nor
+ \&\fB\-mindirect\-branch=thunk\-extern\fR since the thunk function may
+ not be reachable in large code model.
+ .IP "\fB\-mfunction\-return=\fR\fIchoice\fR" 4
+ .IX Item "-mfunction-return=choice"
+ Convert function return with \fIchoice\fR.  The default is \fBkeep\fR,
+ which keeps function return unmodified.  \fBthunk\fR converts function
+ return to call and return thunk.  \fBthunk-inline\fR converts function
+ return to inlined call and return thunk.  \fBthunk-extern\fR converts
+ function return to external call and return thunk provided in a separate
+ object file.  You can control this behavior for a specific function by
+ using the function attribute \f(CW\*(C`function_return\*(C'\fR.
+ .Sp
+ Note that \fB\-mcmodel=large\fR is incompatible with
+ \&\fB\-mfunction\-return=thunk\fR nor
+ \&\fB\-mfunction\-return=thunk\-extern\fR since the thunk function may
+ not be reachable in large code model.
+ .IP "\fB\-mindirect\-branch\-register\fR" 4
+ .IX Item "-mindirect-branch-register"
+ Force indirect call and jump via register.
  .PP
  These \fB\-m\fR switches are supported in addition to the above
  on x86\-64 processors in 64\-bit environments.
diff -Nrcpad gcc-6.4.0/gcc/doc/gc-analyze.1 gcc-6.5.0/gcc/doc/gc-analyze.1
*** gcc-6.4.0/gcc/doc/gc-analyze.1	Tue Jul  4 09:08:00 2017
--- gcc-6.5.0/gcc/doc/gc-analyze.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GC-ANALYZE 1"
! .TH GC-ANALYZE 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GC-ANALYZE 1"
! .TH GC-ANALYZE 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/gcc.1 gcc-6.5.0/gcc/doc/gcc.1
*** gcc-6.4.0/gcc/doc/gcc.1	Tue Jul  4 09:27:49 2017
--- gcc-6.5.0/gcc/doc/gcc.1	Fri Oct 26 10:07:27 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCC 1"
! .TH GCC 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCC 1"
! .TH GCC 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** in the following sections.
*** 649,655 ****
  \&\fI\s-1AVR\s0 Options\fR
  \&\fB\-mmcu=\fR\fImcu\fR \fB\-maccumulate\-args \-mbranch\-cost=\fR\fIcost\fR 
  \&\fB\-mcall\-prologues \-mint8 \-mn_flash=\fR\fIsize\fR \fB\-mno\-interrupts 
! \&\-mrelax \-mrmw \-mstrict\-X \-mtiny\-stack \-nodevicelib \-Waddr\-space\-convert\fR
  .Sp
  \&\fIBlackfin Options\fR
  \&\fB\-mcpu=\fR\fIcpu\fR[\fB\-\fR\fIsirevision\fR] 
--- 645,652 ----
  \&\fI\s-1AVR\s0 Options\fR
  \&\fB\-mmcu=\fR\fImcu\fR \fB\-maccumulate\-args \-mbranch\-cost=\fR\fIcost\fR 
  \&\fB\-mcall\-prologues \-mint8 \-mn_flash=\fR\fIsize\fR \fB\-mno\-interrupts 
! \&\-mrelax \-mrmw \-mstrict\-X \-mtiny\-stack \-nodevicelib \-Waddr\-space\-convert 
! \&\-Wmisspelled\-isr\fR
  .Sp
  \&\fIBlackfin Options\fR
  \&\fB\-mcpu=\fR\fIcpu\fR[\fB\-\fR\fIsirevision\fR] 
*************** in the following sections.
*** 753,759 ****
  .Sp
  \&\fI\s-1HPPA\s0 Options\fR
  \&\fB\-march=\fR\fIarchitecture-type\fR 
! \&\fB\-mdisable\-fpregs  \-mdisable\-indexing 
  \&\-mfast\-indirect\-calls  \-mgas  \-mgnu\-ld   \-mhp\-ld 
  \&\-mfixed\-range=\fR\fIregister-range\fR 
  \&\fB\-mjump\-in\-delay \-mlinker\-opt \-mlong\-calls 
--- 750,756 ----
  .Sp
  \&\fI\s-1HPPA\s0 Options\fR
  \&\fB\-march=\fR\fIarchitecture-type\fR 
! \&\fB\-mcaller\-copies  \-mdisable\-fpregs  \-mdisable\-indexing 
  \&\-mfast\-indirect\-calls  \-mgas  \-mgnu\-ld   \-mhp\-ld 
  \&\-mfixed\-range=\fR\fIregister-range\fR 
  \&\fB\-mjump\-in\-delay \-mlinker\-opt \-mlong\-calls 
*************** See \s-1RS/6000\s0 and PowerPC Options.
*** 1001,1007 ****
  \&\-mfloat\-gprs=yes  \-mfloat\-gprs=no \-mfloat\-gprs=single \-mfloat\-gprs=double 
  \&\-mprototype  \-mno\-prototype 
  \&\-msim  \-mmvme  \-mads  \-myellowknife  \-memb  \-msdata 
! \&\-msdata=\fR\fIopt\fR  \fB\-mvxworks  \-G\fR \fInum\fR  \fB\-pthread 
  \&\-mrecip \-mrecip=\fR\fIopt\fR \fB\-mno\-recip \-mrecip\-precision 
  \&\-mno\-recip\-precision 
  \&\-mveclibabi=\fR\fItype\fR \fB\-mfriz \-mno\-friz 
--- 998,1004 ----
  \&\-mfloat\-gprs=yes  \-mfloat\-gprs=no \-mfloat\-gprs=single \-mfloat\-gprs=double 
  \&\-mprototype  \-mno\-prototype 
  \&\-msim  \-mmvme  \-mads  \-myellowknife  \-memb  \-msdata 
! \&\-msdata=\fR\fIopt\fR  \fB\-mreadonly\-in\-sdata  \-mvxworks  \-G\fR \fInum\fR  \fB\-pthread 
  \&\-mrecip \-mrecip=\fR\fIopt\fR \fB\-mno\-recip \-mrecip\-precision 
  \&\-mno\-recip\-precision 
  \&\-mveclibabi=\fR\fItype\fR \fB\-mfriz \-mno\-friz 
*************** See \s-1RS/6000\s0 and PowerPC Options.
*** 1180,1186 ****
  \&\fB\-msse2avx \-mfentry \-mrecord\-mcount \-mnop\-mcount \-m8bit\-idiv 
  \&\-mavx256\-split\-unaligned\-load \-mavx256\-split\-unaligned\-store 
  \&\-malign\-data=\fR\fItype\fR \fB\-mstack\-protector\-guard=\fR\fIguard\fR 
! \&\fB\-mmitigate\-rop\fR
  .Sp
  \&\fIx86 Windows Options\fR
  \&\fB\-mconsole \-mcygwin \-mno\-cygwin \-mdll 
--- 1177,1184 ----
  \&\fB\-msse2avx \-mfentry \-mrecord\-mcount \-mnop\-mcount \-m8bit\-idiv 
  \&\-mavx256\-split\-unaligned\-load \-mavx256\-split\-unaligned\-store 
  \&\-malign\-data=\fR\fItype\fR \fB\-mstack\-protector\-guard=\fR\fIguard\fR 
! \&\fB\-mmitigate\-rop \-mindirect\-branch=\fR\fIchoice\fR 
! \&\fB\-mfunction\-return=\fR\fIchoice\fR \fB\-mindirect\-branch\-register\fR
  .Sp
  \&\fIx86 Windows Options\fR
  \&\fB\-mconsole \-mcygwin \-mno\-cygwin \-mdll 
*************** In C mode, this is equivalent to \fB\-st
*** 1695,1701 ****
  equivalent to \fB\-std=c++98\fR.
  .Sp
  This turns off certain features of \s-1GCC\s0 that are incompatible with \s-1ISO
! C90 \s0(when compiling C code), or of standard \*(C+ (when compiling \*(C+ code),
  such as the \f(CW\*(C`asm\*(C'\fR and \f(CW\*(C`typeof\*(C'\fR keywords, and
  predefined macros such as \f(CW\*(C`unix\*(C'\fR and \f(CW\*(C`vax\*(C'\fR that identify the
  type of system you are using.  It also enables the undesirable and
--- 1693,1699 ----
  equivalent to \fB\-std=c++98\fR.
  .Sp
  This turns off certain features of \s-1GCC\s0 that are incompatible with \s-1ISO
! C90\s0 (when compiling C code), or of standard \*(C+ (when compiling \*(C+ code),
  such as the \f(CW\*(C`asm\*(C'\fR and \f(CW\*(C`typeof\*(C'\fR keywords, and
  predefined macros such as \f(CW\*(C`unix\*(C'\fR and \f(CW\*(C`vax\*(C'\fR that identify the
  type of system you are using.  It also enables the undesirable and
*************** from declaring certain functions or defi
*** 1722,1728 ****
  programs that might use these names for other things.
  .Sp
  Functions that are normally built in but do not have semantics
! defined by \s-1ISO C \s0(such as \f(CW\*(C`alloca\*(C'\fR and \f(CW\*(C`ffs\*(C'\fR) are not built-in
  functions when \fB\-ansi\fR is used.
  .IP "\fB\-std=\fR" 4
  .IX Item "-std="
--- 1720,1726 ----
  programs that might use these names for other things.
  .Sp
  Functions that are normally built in but do not have semantics
! defined by \s-1ISO C\s0 (such as \f(CW\*(C`alloca\*(C'\fR and \f(CW\*(C`ffs\*(C'\fR) are not built-in
  functions when \fB\-ansi\fR is used.
  .IP "\fB\-std=\fR" 4
  .IX Item "-std="
*************** with \s-1ISO C90\s0 are disabled). Same
*** 1772,1778 ****
  .IP "\fBiso9899:199x\fR" 4
  .IX Item "iso9899:199x"
  .PD
! \&\s-1ISO C99. \s0 This standard is substantially completely supported, modulo
  bugs and floating-point issues
  (mainly but not entirely relating to optional C99 features from
  Annexes F and G).  See
--- 1770,1776 ----
  .IP "\fBiso9899:199x\fR" 4
  .IX Item "iso9899:199x"
  .PD
! \&\s-1ISO C99.\s0  This standard is substantially completely supported, modulo
  bugs and floating-point issues
  (mainly but not entirely relating to optional C99 features from
  Annexes F and G).  See
*************** interfaces) and L (Analyzability).  The
*** 1797,1817 ****
  .IP "\fBgnu89\fR" 4
  .IX Item "gnu89"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C90 \s0(including some C99 features).
  .IP "\fBgnu99\fR" 4
  .IX Item "gnu99"
  .PD 0
  .IP "\fBgnu9x\fR" 4
  .IX Item "gnu9x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C99. \s0 The name \fBgnu9x\fR is deprecated.
  .IP "\fBgnu11\fR" 4
  .IX Item "gnu11"
  .PD 0
  .IP "\fBgnu1x\fR" 4
  .IX Item "gnu1x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C11. \s0 This is the default for C code.
  The name \fBgnu1x\fR is deprecated.
  .IP "\fBc++98\fR" 4
  .IX Item "c++98"
--- 1795,1815 ----
  .IP "\fBgnu89\fR" 4
  .IX Item "gnu89"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C90\s0 (including some C99 features).
  .IP "\fBgnu99\fR" 4
  .IX Item "gnu99"
  .PD 0
  .IP "\fBgnu9x\fR" 4
  .IX Item "gnu9x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C99.\s0  The name \fBgnu9x\fR is deprecated.
  .IP "\fBgnu11\fR" 4
  .IX Item "gnu11"
  .PD 0
  .IP "\fBgnu1x\fR" 4
  .IX Item "gnu1x"
  .PD
! \&\s-1GNU\s0 dialect of \s-1ISO C11.\s0  This is the default for C code.
  The name \fBgnu1x\fR is deprecated.
  .IP "\fBc++98\fR" 4
  .IX Item "c++98"
*************** relevant for \*(C+ programs.
*** 2150,2156 ****
  Here is a list of options that are \fIonly\fR for compiling \*(C+ programs:
  .IP "\fB\-fabi\-version=\fR\fIn\fR" 4
  .IX Item "-fabi-version=n"
! Use version \fIn\fR of the \*(C+ \s-1ABI. \s0 The default is version 0.
  .Sp
  Version 0 refers to the version conforming most closely to
  the \*(C+ \s-1ABI\s0 specification.  Therefore, the \s-1ABI\s0 obtained using version 0
--- 2148,2154 ----
  Here is a list of options that are \fIonly\fR for compiling \*(C+ programs:
  .IP "\fB\-fabi\-version=\fR\fIn\fR" 4
  .IX Item "-fabi-version=n"
! Use version \fIn\fR of the \*(C+ \s-1ABI.\s0  The default is version 0.
  .Sp
  Version 0 refers to the version conforming most closely to
  the \*(C+ \s-1ABI\s0 specification.  Therefore, the \s-1ABI\s0 obtained using version 0
*************** exhaustion is signalled by throwing \f(C
*** 2226,2232 ****
  .IP "\fB\-fconcepts\fR" 4
  .IX Item "-fconcepts"
  Enable support for the \*(C+ Extensions for Concepts Technical
! Specification, \s-1ISO 19217 \s0(2015), which allows code like
  .Sp
  .Vb 2
  \&        template <class T> concept bool Addable = requires (T t) { t + t; };
--- 2224,2230 ----
  .IP "\fB\-fconcepts\fR" 4
  .IX Item "-fconcepts"
  Enable support for the \*(C+ Extensions for Concepts Technical
! Specification, \s-1ISO 19217\s0 (2015), which allows code like
  .Sp
  .Vb 2
  \&        template <class T> concept bool Addable = requires (T t) { t + t; };
*************** int and getting a pointer to member func
*** 2354,2360 ****
  .IP "\fB\-fno\-nonansi\-builtins\fR" 4
  .IX Item "-fno-nonansi-builtins"
  Disable built-in declarations of functions that are not mandated by
! \&\s-1ANSI/ISO C. \s0 These include \f(CW\*(C`ffs\*(C'\fR, \f(CW\*(C`alloca\*(C'\fR, \f(CW\*(C`_exit\*(C'\fR,
  \&\f(CW\*(C`index\*(C'\fR, \f(CW\*(C`bzero\*(C'\fR, \f(CW\*(C`conjf\*(C'\fR, and other related functions.
  .IP "\fB\-fnothrow\-opt\fR" 4
  .IX Item "-fnothrow-opt"
--- 2352,2358 ----
  .IP "\fB\-fno\-nonansi\-builtins\fR" 4
  .IX Item "-fno-nonansi-builtins"
  Disable built-in declarations of functions that are not mandated by
! \&\s-1ANSI/ISO C.\s0  These include \f(CW\*(C`ffs\*(C'\fR, \f(CW\*(C`alloca\*(C'\fR, \f(CW\*(C`_exit\*(C'\fR,
  \&\f(CW\*(C`index\*(C'\fR, \f(CW\*(C`bzero\*(C'\fR, \f(CW\*(C`conjf\*(C'\fR, and other related functions.
  .IP "\fB\-fnothrow\-opt\fR" 4
  .IX Item "-fnothrow-opt"
*************** are taken in different shared objects.
*** 2469,2475 ****
  The effect of this is that \s-1GCC\s0 may, effectively, mark inline methods with
  \&\f(CW\*(C`_\|_attribute_\|_ ((visibility ("hidden")))\*(C'\fR so that they do not
  appear in the export table of a \s-1DSO\s0 and do not require a \s-1PLT\s0 indirection
! when used within the \s-1DSO. \s0 Enabling this option can have a dramatic effect
  on load and link times of a \s-1DSO\s0 as it massively reduces the size of the
  dynamic export table when the library makes heavy use of templates.
  .Sp
--- 2467,2473 ----
  The effect of this is that \s-1GCC\s0 may, effectively, mark inline methods with
  \&\f(CW\*(C`_\|_attribute_\|_ ((visibility ("hidden")))\*(C'\fR so that they do not
  appear in the export table of a \s-1DSO\s0 and do not require a \s-1PLT\s0 indirection
! when used within the \s-1DSO.\s0  Enabling this option can have a dramatic effect
  on load and link times of a \s-1DSO\s0 as it massively reduces the size of the
  dynamic export table when the library makes heavy use of templates.
  .Sp
*************** have meanings only for \*(C+ programs:
*** 2539,2545 ****
  .IP "\fB\-Wabi\fR (C, Objective-C, \*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wabi (C, Objective-C, and Objective- only)"
  Warn when G++ it generates code that is probably not compatible with
! the vendor-neutral \*(C+ \s-1ABI. \s0 Since G++ now defaults to updating the
  \&\s-1ABI\s0 with each major release, normally \fB\-Wabi\fR will warn only if
  there is a check added later in a release series for an \s-1ABI\s0 issue
  discovered since the initial release.  \fB\-Wabi\fR will warn about
--- 2537,2543 ----
  .IP "\fB\-Wabi\fR (C, Objective-C, \*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wabi (C, Objective-C, and Objective- only)"
  Warn when G++ it generates code that is probably not compatible with
! the vendor-neutral \*(C+ \s-1ABI.\s0  Since G++ now defaults to updating the
  \&\s-1ABI\s0 with each major release, normally \fB\-Wabi\fR will warn only if
  there is a check added later in a release series for an \s-1ABI\s0 issue
  discovered since the initial release.  \fB\-Wabi\fR will warn about
*************** unsignedness, but the standard mandates
*** 2854,2881 ****
  Warn when a primary template declaration is encountered.  Some coding
  rules disallow templates, and this may be used to enforce that rule.
  The warning is inactive inside a system header file, such as the \s-1STL,\s0 so
! one can still use the \s-1STL. \s0 One may also instantiate or specialize
  templates.
  .IP "\fB\-Wmultiple\-inheritance\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wmultiple-inheritance ( and Objective- only)"
  Warn when a class is defined with multiple direct base classes.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL. \s0 One may also define
  classes that indirectly use multiple inheritance.
  .IP "\fB\-Wvirtual\-inheritance\fR" 4
  .IX Item "-Wvirtual-inheritance"
  Warn when a class is defined with a virtual direct base classe.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL. \s0 One may also define
  classes that indirectly use virtual inheritance.
  .IP "\fB\-Wnamespaces\fR" 4
  .IX Item "-Wnamespaces"
  Warn when a namespace definition is opened.  Some coding rules disallow
  namespaces, and this may be used to enforce that rule.  The warning is
  inactive inside a system header file, such as the \s-1STL,\s0 so one can still
! use the \s-1STL. \s0 One may also use using directives and qualified names.
  .IP "\fB\-Wno\-terminate\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wno-terminate ( and Objective- only)"
  Disable the warning about a throw-expression that will immediately
--- 2852,2879 ----
  Warn when a primary template declaration is encountered.  Some coding
  rules disallow templates, and this may be used to enforce that rule.
  The warning is inactive inside a system header file, such as the \s-1STL,\s0 so
! one can still use the \s-1STL.\s0  One may also instantiate or specialize
  templates.
  .IP "\fB\-Wmultiple\-inheritance\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wmultiple-inheritance ( and Objective- only)"
  Warn when a class is defined with multiple direct base classes.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL.\s0  One may also define
  classes that indirectly use multiple inheritance.
  .IP "\fB\-Wvirtual\-inheritance\fR" 4
  .IX Item "-Wvirtual-inheritance"
  Warn when a class is defined with a virtual direct base classe.  Some
  coding rules disallow multiple inheritance, and this may be used to
  enforce that rule.  The warning is inactive inside a system header file,
! such as the \s-1STL,\s0 so one can still use the \s-1STL.\s0  One may also define
  classes that indirectly use virtual inheritance.
  .IP "\fB\-Wnamespaces\fR" 4
  .IX Item "-Wnamespaces"
  Warn when a namespace definition is opened.  Some coding rules disallow
  namespaces, and this may be used to enforce that rule.  The warning is
  inactive inside a system header file, such as the \s-1STL,\s0 so one can still
! use the \s-1STL.\s0  One may also use using directives and qualified names.
  .IP "\fB\-Wno\-terminate\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wno-terminate ( and Objective- only)"
  Disable the warning about a throw-expression that will immediately
*************** runtime.  This is the default for most t
*** 2921,2927 ****
  .IP "\fB\-fnext\-runtime\fR" 4
  .IX Item "-fnext-runtime"
  Generate output compatible with the NeXT runtime.  This is the default
! for NeXT-based systems, including Darwin and Mac \s-1OS X. \s0 The macro
  \&\f(CW\*(C`_\|_NEXT_RUNTIME_\|_\*(C'\fR is predefined if (and only if) this option is
  used.
  .IP "\fB\-fno\-nil\-receivers\fR" 4
--- 2919,2925 ----
  .IP "\fB\-fnext\-runtime\fR" 4
  .IX Item "-fnext-runtime"
  Generate output compatible with the NeXT runtime.  This is the default
! for NeXT-based systems, including Darwin and Mac \s-1OS X.\s0  The macro
  \&\f(CW\*(C`_\|_NEXT_RUNTIME_\|_\*(C'\fR is predefined if (and only if) this option is
  used.
  .IP "\fB\-fno\-nil\-receivers\fR" 4
*************** This option is currently supported only
*** 2938,2944 ****
  case, Version 0 is the traditional (32\-bit) \s-1ABI\s0 without support for
  properties and other Objective-C 2.0 additions.  Version 1 is the
  traditional (32\-bit) \s-1ABI\s0 with support for properties and other
! Objective-C 2.0 additions.  Version 2 is the modern (64\-bit) \s-1ABI. \s0 If
  nothing is specified, the default is Version 0 on 32\-bit target
  machines, and Version 2 on 64\-bit target machines.
  .IP "\fB\-fobjc\-call\-cxx\-cdtors\fR" 4
--- 2936,2942 ----
  case, Version 0 is the traditional (32\-bit) \s-1ABI\s0 without support for
  properties and other Objective-C 2.0 additions.  Version 1 is the
  traditional (32\-bit) \s-1ABI\s0 with support for properties and other
! Objective-C 2.0 additions.  Version 2 is the modern (64\-bit) \s-1ABI.\s0  If
  nothing is specified, the default is Version 0 on 32\-bit target
  machines, and Version 2 on 64\-bit target machines.
  .IP "\fB\-fobjc\-call\-cxx\-cdtors\fR" 4
*************** version of the NeXT runtime \s-1ABI,\s0
*** 2996,3002 ****
  .IP "\fB\-fobjc\-std=objc1\fR" 4
  .IX Item "-fobjc-std=objc1"
  Conform to the language syntax of Objective-C 1.0, the language
! recognized by \s-1GCC 4.0. \s0 This only affects the Objective-C additions to
  the C/\*(C+ language; it does not affect conformance to C/\*(C+ standards,
  which is controlled by the separate C/\*(C+ dialect option flags.  When
  this option is used with the Objective-C or Objective\-\*(C+ compiler,
--- 2994,3000 ----
  .IP "\fB\-fobjc\-std=objc1\fR" 4
  .IX Item "-fobjc-std=objc1"
  Conform to the language syntax of Objective-C 1.0, the language
! recognized by \s-1GCC 4.0.\s0  This only affects the Objective-C additions to
  the C/\*(C+ language; it does not affect conformance to C/\*(C+ standards,
  which is controlled by the separate C/\*(C+ dialect option flags.  When
  this option is used with the Objective-C or Objective\-\*(C+ compiler,
*************** warns that an unrecognized option is pre
*** 3296,3302 ****
  .PD
  Issue all the warnings demanded by strict \s-1ISO C\s0 and \s-1ISO \*(C+\s0;
  reject all programs that use forbidden extensions, and some other
! programs that do not follow \s-1ISO C\s0 and \s-1ISO \*(C+. \s0 For \s-1ISO C,\s0 follows the
  version of the \s-1ISO C\s0 standard specified by any \fB\-std\fR option used.
  .Sp
  Valid \s-1ISO C\s0 and \s-1ISO \*(C+\s0 programs should compile properly with or without
--- 3294,3300 ----
  .PD
  Issue all the warnings demanded by strict \s-1ISO C\s0 and \s-1ISO \*(C+\s0;
  reject all programs that use forbidden extensions, and some other
! programs that do not follow \s-1ISO C\s0 and \s-1ISO \*(C+.\s0  For \s-1ISO C,\s0 follows the
  version of the \s-1ISO C\s0 standard specified by any \fB\-std\fR option used.
  .Sp
  Valid \s-1ISO C\s0 and \s-1ISO \*(C+\s0 programs should compile properly with or without
*************** these escape routes; application program
*** 3314,3320 ****
  Some users try to use \fB\-Wpedantic\fR to check programs for strict \s-1ISO
  C\s0 conformance.  They soon find that it does not do quite what they want:
  it finds some non-ISO practices, but not all\-\-\-only those for which
! \&\s-1ISO C \s0\fIrequires\fR a diagnostic, and some others for which
  diagnostics have been added.
  .Sp
  A feature to report any failure to conform to \s-1ISO C\s0 might be useful in
--- 3312,3318 ----
  Some users try to use \fB\-Wpedantic\fR to check programs for strict \s-1ISO
  C\s0 conformance.  They soon find that it does not do quite what they want:
  it finds some non-ISO practices, but not all\-\-\-only those for which
! \&\s-1ISO C\s0 \fIrequires\fR a diagnostic, and some others for which
  diagnostics have been added.
  .Sp
  A feature to report any failure to conform to \s-1ISO C\s0 might be useful in
*************** This warning is enabled by \fB\-Wall\fR
*** 4101,4107 ****
  .IP "\fB\-Wunknown\-pragmas\fR" 4
  .IX Item "-Wunknown-pragmas"
  Warn when a \f(CW\*(C`#pragma\*(C'\fR directive is encountered that is not understood by 
! \&\s-1GCC. \s0 If this command-line option is used, warnings are even issued
  for unknown pragmas in system header files.  This is not the case if
  the warnings are only enabled by the \fB\-Wall\fR command-line option.
  .IP "\fB\-Wno\-pragmas\fR" 4
--- 4099,4105 ----
  .IP "\fB\-Wunknown\-pragmas\fR" 4
  .IX Item "-Wunknown-pragmas"
  Warn when a \f(CW\*(C`#pragma\*(C'\fR directive is encountered that is not understood by 
! \&\s-1GCC.\s0  If this command-line option is used, warnings are even issued
  for unknown pragmas in system header files.  This is not the case if
  the warnings are only enabled by the \fB\-Wall\fR command-line option.
  .IP "\fB\-Wno\-pragmas\fR" 4
*************** probably mistaken.
*** 4405,4411 ****
  .IP "\fB\-Wtraditional\fR (C and Objective-C only)" 4
  .IX Item "-Wtraditional (C and Objective-C only)"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C. \s0 Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and/or problematic constructs that should be avoided.
  .RS 4
  .IP "*" 4
--- 4403,4409 ----
  .IP "\fB\-Wtraditional\fR (C and Objective-C only)" 4
  .IX Item "-Wtraditional (C and Objective-C only)"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C.\s0  Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and/or problematic constructs that should be avoided.
  .RS 4
  .IP "*" 4
*************** except when the same as the default prom
*** 4487,4493 ****
  .IX Item "-Wdeclaration-after-statement (C and Objective-C only)"
  Warn when a declaration is found after a statement in a block.  This
  construct, known from \*(C+, was introduced with \s-1ISO C99\s0 and is by default
! allowed in \s-1GCC. \s0 It is not supported by \s-1ISO C90.  \s0
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
  Warn if an undefined identifier is evaluated in an \f(CW\*(C`#if\*(C'\fR directive.
--- 4485,4491 ----
  .IX Item "-Wdeclaration-after-statement (C and Objective-C only)"
  Warn when a declaration is found after a statement in a block.  This
  construct, known from \*(C+, was introduced with \s-1ISO C99\s0 and is by default
! allowed in \s-1GCC.\s0  It is not supported by \s-1ISO C90.\s0
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
  Warn if an undefined identifier is evaluated in an \f(CW\*(C`#if\*(C'\fR directive.
*************** Warn about \s-1ISO C\s0 constructs that
*** 4659,4670 ****
  .IX Item "-Wc++11-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 1998\s0
  and \s-1ISO \*(C+ 2011,\s0 e.g., identifiers in \s-1ISO \*(C+ 1998\s0 that are keywords
! in \s-1ISO \*(C+ 2011. \s0 This warning turns on \fB\-Wnarrowing\fR and is
  enabled by \fB\-Wall\fR.
  .IP "\fB\-Wc++14\-compat\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wc++14-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 2011\s0
! and \s-1ISO \*(C+ 2014. \s0 This warning is enabled by \fB\-Wall\fR.
  .IP "\fB\-Wcast\-qual\fR" 4
  .IX Item "-Wcast-qual"
  Warn whenever a pointer is cast so as to remove a type qualifier from
--- 4657,4668 ----
  .IX Item "-Wc++11-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 1998\s0
  and \s-1ISO \*(C+ 2011,\s0 e.g., identifiers in \s-1ISO \*(C+ 1998\s0 that are keywords
! in \s-1ISO \*(C+ 2011.\s0  This warning turns on \fB\-Wnarrowing\fR and is
  enabled by \fB\-Wall\fR.
  .IP "\fB\-Wc++14\-compat\fR (\*(C+ and Objective\-\*(C+ only)" 4
  .IX Item "-Wc++14-compat ( and Objective- only)"
  Warn about \*(C+ constructs whose meaning differs between \s-1ISO \*(C+ 2011\s0
! and \s-1ISO \*(C+ 2014.\s0  This warning is enabled by \fB\-Wall\fR.
  .IP "\fB\-Wcast\-qual\fR" 4
  .IX Item "-Wcast-qual"
  Warn whenever a pointer is cast so as to remove a type qualifier from
*************** when applied ensure that two sequences t
*** 4997,5003 ****
  the same sequence.  \s-1GCC\s0 can warn you if you are using identifiers that
  have not been normalized; this option controls that warning.
  .Sp
! There are four levels of warning supported by \s-1GCC. \s0 The default is
  \&\fB\-Wnormalized=nfc\fR, which warns about any identifier that is
  not in the \s-1ISO 10646 \*(L"C\*(R"\s0 normalized form, \fI\s-1NFC\s0\fR.  \s-1NFC\s0 is the
  recommended form for most uses.  It is equivalent to
--- 4995,5001 ----
  the same sequence.  \s-1GCC\s0 can warn you if you are using identifiers that
  have not been normalized; this option controls that warning.
  .Sp
! There are four levels of warning supported by \s-1GCC.\s0  The default is
  \&\fB\-Wnormalized=nfc\fR, which warns about any identifier that is
  not in the \s-1ISO 10646 \*(L"C\*(R"\s0 normalized form, \fI\s-1NFC\s0\fR.  \s-1NFC\s0 is the
  recommended form for most uses.  It is equivalent to
*************** recommended form for most uses.  It is e
*** 5006,5013 ****
  Unfortunately, there are some characters allowed in identifiers by
  \&\s-1ISO C\s0 and \s-1ISO \*(C+\s0 that, when turned into \s-1NFC,\s0 are not allowed in 
  identifiers.  That is, there's no way to use these symbols in portable
! \&\s-1ISO C\s0 or \*(C+ and have all your identifiers in \s-1NFC.
! \&\s0\fB\-Wnormalized=id\fR suppresses the warning for these characters.
  It is hoped that future versions of the standards involved will correct
  this, which is why this option is not the default.
  .Sp
--- 5004,5011 ----
  Unfortunately, there are some characters allowed in identifiers by
  \&\s-1ISO C\s0 and \s-1ISO \*(C+\s0 that, when turned into \s-1NFC,\s0 are not allowed in 
  identifiers.  That is, there's no way to use these symbols in portable
! \&\s-1ISO C\s0 or \*(C+ and have all your identifiers in \s-1NFC.\s0
! \&\fB\-Wnormalized=id\fR suppresses the warning for these characters.
  It is hoped that future versions of the standards involved will correct
  this, which is why this option is not the default.
  .Sp
*************** standard's minimum limit, but very porta
*** 5226,5232 ****
  using longer strings.
  .Sp
  The limit applies \fIafter\fR string constant concatenation, and does
! not count the trailing \s-1NUL. \s0 In C90, the limit was 509 characters; in
  C99, it was raised to 4095.  \*(C+98 does not specify a normative
  minimum maximum, so we do not diagnose overlength strings in \*(C+.
  .Sp
--- 5224,5230 ----
  using longer strings.
  .Sp
  The limit applies \fIafter\fR string constant concatenation, and does
! not count the trailing \s-1NUL.\s0  In C90, the limit was 509 characters; in
  C99, it was raised to 4095.  \*(C+98 does not specify a normative
  minimum maximum, so we do not diagnose overlength strings in \*(C+.
  .Sp
*************** to generate the extra information, use \
*** 5283,5289 ****
  \&\fB\-gxcoff+\fR, \fB\-gxcoff\fR, or \fB\-gvms\fR (see below).
  .IP "\fB\-ggdb\fR" 4
  .IX Item "-ggdb"
! Produce debugging information for use by \s-1GDB. \s0 This means to use the
  most expressive format available (\s-1DWARF,\s0 stabs, or the native format
  if neither of those are supported), including \s-1GDB\s0 extensions if at all
  possible.
--- 5281,5287 ----
  \&\fB\-gxcoff+\fR, \fB\-gxcoff\fR, or \fB\-gvms\fR (see below).
  .IP "\fB\-ggdb\fR" 4
  .IX Item "-ggdb"
! Produce debugging information for use by \s-1GDB.\s0  This means to use the
  most expressive format available (\s-1DWARF,\s0 stabs, or the native format
  if neither of those are supported), including \s-1GDB\s0 extensions if at all
  possible.
*************** be useful, this option requires a debugg
*** 5426,5432 ****
  files.
  .IP "\fB\-gpubnames\fR" 4
  .IX Item "-gpubnames"
! Generate \s-1DWARF \s0\f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections.
  .IP "\fB\-ggnu\-pubnames\fR" 4
  .IX Item "-ggnu-pubnames"
  Generate \f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections in a format
--- 5424,5430 ----
  files.
  .IP "\fB\-gpubnames\fR" 4
  .IX Item "-gpubnames"
! Generate \s-1DWARF\s0 \f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections.
  .IP "\fB\-ggnu\-pubnames\fR" 4
  .IX Item "-ggnu-pubnames"
  Generate \f(CW\*(C`.debug_pubnames\*(C'\fR and \f(CW\*(C`.debug_pubtypes\*(C'\fR sections in a format
*************** This option works only with \s-1DWARF\s0
*** 5554,5560 ****
  .IP "\fB\-fno\-dwarf2\-cfi\-asm\fR" 4
  .IX Item "-fno-dwarf2-cfi-asm"
  Emit \s-1DWARF\s0 unwind info as compiler generated \f(CW\*(C`.eh_frame\*(C'\fR section
! instead of using \s-1GAS \s0\f(CW\*(C`.cfi_*\*(C'\fR directives.
  .IP "\fB\-fno\-eliminate\-unused\-debug\-types\fR" 4
  .IX Item "-fno-eliminate-unused-debug-types"
  Normally, when producing \s-1DWARF\s0 output, \s-1GCC\s0 avoids producing debug symbol 
--- 5552,5558 ----
  .IP "\fB\-fno\-dwarf2\-cfi\-asm\fR" 4
  .IX Item "-fno-dwarf2-cfi-asm"
  Emit \s-1DWARF\s0 unwind info as compiler generated \f(CW\*(C`.eh_frame\*(C'\fR section
! instead of using \s-1GAS\s0 \f(CW\*(C`.cfi_*\*(C'\fR directives.
  .IP "\fB\-fno\-eliminate\-unused\-debug\-types\fR" 4
  .IX Item "-fno-eliminate-unused-debug-types"
  Normally, when producing \s-1DWARF\s0 output, \s-1GCC\s0 avoids producing debug symbol 
*************** function calls and pops them all at once
*** 5765,5771 ****
  Disabled at levels \fB\-O\fR, \fB\-O2\fR, \fB\-O3\fR, \fB\-Os\fR.
  .IP "\fB\-fforward\-propagate\fR" 4
  .IX Item "-fforward-propagate"
! Perform a forward propagation pass on \s-1RTL. \s0 The pass tries to combine two
  instructions and checks if the result can be simplified.  If loop unrolling
  is active, two passes are performed and the second is scheduled after
  loop unrolling.
--- 5763,5769 ----
  Disabled at levels \fB\-O\fR, \fB\-O2\fR, \fB\-O3\fR, \fB\-Os\fR.
  .IP "\fB\-fforward\-propagate\fR" 4
  .IX Item "-fforward-propagate"
! Perform a forward propagation pass on \s-1RTL.\s0  The pass tries to combine two
  instructions and checks if the result can be simplified.  If loop unrolling
  is active, two passes are performed and the second is scheduled after
  loop unrolling.
*************** attribute or declspec
*** 5916,5922 ****
  In C, emit \f(CW\*(C`static\*(C'\fR functions that are declared \f(CW\*(C`inline\*(C'\fR
  into the object file, even if the function has been inlined into all
  of its callers.  This switch does not affect functions using the
! \&\f(CW\*(C`extern inline\*(C'\fR extension in \s-1GNU C90. \s0 In \*(C+, emit any and all
  inline functions into the object file.
  .IP "\fB\-fkeep\-static\-functions\fR" 4
  .IX Item "-fkeep-static-functions"
--- 5914,5920 ----
  In C, emit \f(CW\*(C`static\*(C'\fR functions that are declared \f(CW\*(C`inline\*(C'\fR
  into the object file, even if the function has been inlined into all
  of its callers.  This switch does not affect functions using the
! \&\f(CW\*(C`extern inline\*(C'\fR extension in \s-1GNU C90.\s0  In \*(C+, emit any and all
  inline functions into the object file.
  .IP "\fB\-fkeep\-static\-functions\fR" 4
  .IX Item "-fkeep-static-functions"
*************** The default is \fB\-ffunction\-cse\fR
*** 5990,5996 ****
  .IP "\fB\-fno\-zero\-initialized\-in\-bss\fR" 4
  .IX Item "-fno-zero-initialized-in-bss"
  If the target supports a \s-1BSS\s0 section, \s-1GCC\s0 by default puts variables that
! are initialized to zero into \s-1BSS. \s0 This can save space in the resulting
  code.
  .Sp
  This option turns off this behavior because some programs explicitly
--- 5988,5994 ----
  .IP "\fB\-fno\-zero\-initialized\-in\-bss\fR" 4
  .IX Item "-fno-zero-initialized-in-bss"
  If the target supports a \s-1BSS\s0 section, \s-1GCC\s0 by default puts variables that
! are initialized to zero into \s-1BSS.\s0  This can save space in the resulting
  code.
  .Sp
  This option turns off this behavior because some programs explicitly
*************** pseudo-register that does not get a hard
*** 6285,6291 ****
  stack slot, and as a result function stack frames are larger.
  .IP "\fB\-flra\-remat\fR" 4
  .IX Item "-flra-remat"
! Enable CFG-sensitive rematerialization in \s-1LRA. \s0 Instead of loading
  values of spilled pseudos, \s-1LRA\s0 tries to rematerialize (recalculate)
  values if it is profitable.
  .Sp
--- 6283,6289 ----
  stack slot, and as a result function stack frames are larger.
  .IP "\fB\-flra\-remat\fR" 4
  .IX Item "-flra-remat"
! Enable CFG-sensitive rematerialization in \s-1LRA.\s0  Instead of loading
  values of spilled pseudos, \s-1LRA\s0 tries to rematerialize (recalculate)
  values if it is profitable.
  .Sp
*************** This flag is enabled by default at \fB\-
*** 6601,6607 ****
  \&\fB\-fdelete\-null\-pointer\-checks\fR also being enabled.
  .IP "\fB\-fisolate\-erroneous\-paths\-attribute\fR" 4
  .IX Item "-fisolate-erroneous-paths-attribute"
! Detect paths that trigger erroneous or undefined behavior due a null value
  being used in a way forbidden by a \f(CW\*(C`returns_nonnull\*(C'\fR or \f(CW\*(C`nonnull\*(C'\fR
  attribute.  Isolate those paths from the main control flow and turn the
  statement with erroneous or undefined behavior into a trap.  This is not
--- 6599,6605 ----
  \&\fB\-fdelete\-null\-pointer\-checks\fR also being enabled.
  .IP "\fB\-fisolate\-erroneous\-paths\-attribute\fR" 4
  .IX Item "-fisolate-erroneous-paths-attribute"
! Detect paths that trigger erroneous or undefined behavior due to a null value
  being used in a way forbidden by a \f(CW\*(C`returns_nonnull\*(C'\fR or \f(CW\*(C`nonnull\*(C'\fR
  attribute.  Isolate those paths from the main control flow and turn the
  statement with erroneous or undefined behavior into a trap.  This is not
*************** transformation infrastructure.
*** 6698,6704 ****
  Enable the identity transformation for graphite.  For every SCoP we generate
  the polyhedral representation and transform it back to gimple.  Using
  \&\fB\-fgraphite\-identity\fR we can check the costs or benefits of the
! \&\s-1GIMPLE \-\s0> \s-1GRAPHITE \-\s0> \s-1GIMPLE\s0 transformation.  Some minimal optimizations
  are also performed by the code generator isl, like index splitting and
  dead code elimination in loops.
  .IP "\fB\-floop\-nest\-optimize\fR" 4
--- 6696,6702 ----
  Enable the identity transformation for graphite.  For every SCoP we generate
  the polyhedral representation and transform it back to gimple.  Using
  \&\fB\-fgraphite\-identity\fR we can check the costs or benefits of the
! \&\s-1GIMPLE\s0 \-> \s-1GRAPHITE\s0 \-> \s-1GIMPLE\s0 transformation.  Some minimal optimizations
  are also performed by the code generator isl, like index splitting and
  dead code elimination in loops.
  .IP "\fB\-floop\-nest\-optimize\fR" 4
*************** Some assemblers only support this flag w
*** 7115,7120 ****
--- 7113,7119 ----
  in that case, it is rounded up.
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  Enabled at levels \fB\-O2\fR, \fB\-O3\fR.
  .IP "\fB\-falign\-labels\fR" 4
*************** are greater than this value, then their
*** 7136,7141 ****
--- 7135,7141 ----
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default
  which is very likely to be \fB1\fR, meaning no alignment.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  Enabled at levels \fB\-O2\fR, \fB\-O3\fR.
  .IP "\fB\-falign\-loops\fR" 4
*************** operations.
*** 7151,7156 ****
--- 7151,7157 ----
  .Sp
  \&\fB\-fno\-align\-loops\fR and \fB\-falign\-loops=1\fR are
  equivalent and mean that loops are not aligned.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default.
  .Sp
*************** need be executed.
*** 7170,7175 ****
--- 7171,7177 ----
  equivalent and mean that loops are not aligned.
  .Sp
  If \fIn\fR is not specified or is zero, use a machine-dependent default.
+ The maximum allowed \fIn\fR option value is 65536.
  .Sp
  Enabled at levels \fB\-O2\fR, \fB\-O3\fR.
  .IP "\fB\-funit\-at\-a\-time\fR" 4
*************** information.
*** 7214,7220 ****
  .IP "\fB\-flto[=\fR\fIn\fR\fB]\fR" 4
  .IX Item "-flto[=n]"
  This option runs the standard link-time optimizer.  When invoked
! with source code, it generates \s-1GIMPLE \s0(one of \s-1GCC\s0's internal
  representations) and writes it to special \s-1ELF\s0 sections in the object
  file.  When the object files are linked together, all the function
  bodies are read from these \s-1ELF\s0 sections and instantiated as if they
--- 7216,7222 ----
  .IP "\fB\-flto[=\fR\fIn\fR\fB]\fR" 4
  .IX Item "-flto[=n]"
  This option runs the standard link-time optimizer.  When invoked
! with source code, it generates \s-1GIMPLE\s0 (one of \s-1GCC\s0's internal
  representations) and writes it to special \s-1ELF\s0 sections in the object
  file.  When the object files are linked together, all the function
  bodies are read from these \s-1ELF\s0 sections and instantiated as if they
*************** E.g.
*** 7554,7560 ****
  .Ve
  .Sp
  Then use the \fBcreate_gcov\fR tool to convert the raw profile data
! to a format that can be used by \s-1GCC. \s0 You must also supply the 
  unstripped binary for your program to this tool.  
  See <\fBhttps://github.com/google/autofdo\fR>.
  .Sp
--- 7556,7562 ----
  .Ve
  .Sp
  Then use the \fBcreate_gcov\fR tool to convert the raw profile data
! to a format that can be used by \s-1GCC.\s0  You must also supply the 
  unstripped binary for your program to this tool.  
  See <\fBhttps://github.com/google/autofdo\fR>.
  .Sp
*************** them to store all pertinent intermediate
*** 7584,7591 ****
  .IP "\fB\-fexcess\-precision=\fR\fIstyle\fR" 4
  .IX Item "-fexcess-precision=style"
  This option allows further control over excess precision on machines
! where floating-point registers have more precision than the \s-1IEEE
! \&\s0\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR types and the processor does not
  support operations rounding to those types.  By default,
  \&\fB\-fexcess\-precision=fast\fR is in effect; this means that
  operations are carried out in the precision of the registers and that
--- 7586,7593 ----
  .IP "\fB\-fexcess\-precision=\fR\fIstyle\fR" 4
  .IX Item "-fexcess-precision=style"
  This option allows further control over excess precision on machines
! where floating-point registers have more precision than the \s-1IEEE\s0
! \&\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR types and the processor does not
  support operations rounding to those types.  By default,
  \&\fB\-fexcess\-precision=fast\fR is in effect; this means that
  operations are carried out in the precision of the registers and that
*************** whether the result of a complex multipli
*** 7759,7766 ****
  default is \fB\-fno\-cx\-limited\-range\fR, but is enabled by
  \&\fB\-ffast\-math\fR.
  .Sp
! This option controls the default setting of the \s-1ISO C99
! \&\s0\f(CW\*(C`CX_LIMITED_RANGE\*(C'\fR pragma.  Nevertheless, the option applies to
  all languages.
  .IP "\fB\-fcx\-fortran\-rules\fR" 4
  .IX Item "-fcx-fortran-rules"
--- 7761,7768 ----
  default is \fB\-fno\-cx\-limited\-range\fR, but is enabled by
  \&\fB\-ffast\-math\fR.
  .Sp
! This option controls the default setting of the \s-1ISO C99\s0
! \&\f(CW\*(C`CX_LIMITED_RANGE\*(C'\fR pragma.  Nevertheless, the option applies to
  all languages.
  .IP "\fB\-fcx\-fortran\-rules\fR" 4
  .IX Item "-fcx-fortran-rules"
*************** Tuning this may improve compilation spee
*** 8365,8371 ****
  generation.
  .Sp
  The default is 30% + 70% * (\s-1RAM/1GB\s0) with an upper bound of 100% when
! \&\s-1RAM \s0>= 1GB.  If \f(CW\*(C`getrlimit\*(C'\fR is available, the notion of \*(L"\s-1RAM\*(R"\s0 is
  the smallest of actual \s-1RAM\s0 and \f(CW\*(C`RLIMIT_DATA\*(C'\fR or \f(CW\*(C`RLIMIT_AS\*(C'\fR.  If
  \&\s-1GCC\s0 is not able to calculate \s-1RAM\s0 on a particular platform, the lower
  bound of 30% is used.  Setting this parameter and
--- 8367,8373 ----
  generation.
  .Sp
  The default is 30% + 70% * (\s-1RAM/1GB\s0) with an upper bound of 100% when
! \&\s-1RAM\s0 >= 1GB.  If \f(CW\*(C`getrlimit\*(C'\fR is available, the notion of \*(L"\s-1RAM\*(R"\s0 is
  the smallest of actual \s-1RAM\s0 and \f(CW\*(C`RLIMIT_DATA\*(C'\fR or \f(CW\*(C`RLIMIT_AS\*(C'\fR.  If
  \&\s-1GCC\s0 is not able to calculate \s-1RAM\s0 on a particular platform, the lower
  bound of 30% is used.  Setting this parameter and
*************** This value is the best found from numero
*** 8589,8595 ****
  This optimization is called inheritance.  \s-1EBB\s0 is used as a region to
  do this optimization.  The parameter defines a minimal fall-through
  edge probability in percentage used to add \s-1BB\s0 to inheritance \s-1EBB\s0 in
! \&\s-1LRA. \s0 The default value of the parameter is 40.  The value was chosen
  from numerous runs of \s-1SPEC2000\s0 on x86\-64.
  .IP "\fBloop-invariant-max-bbs-in-loop\fR" 4
  .IX Item "loop-invariant-max-bbs-in-loop"
--- 8591,8597 ----
  This optimization is called inheritance.  \s-1EBB\s0 is used as a region to
  do this optimization.  The parameter defines a minimal fall-through
  edge probability in percentage used to add \s-1BB\s0 to inheritance \s-1EBB\s0 in
! \&\s-1LRA.\s0  The default value of the parameter is 40.  The value was chosen
  from numerous runs of \s-1SPEC2000\s0 on x86\-64.
  .IP "\fBloop-invariant-max-bbs-in-loop\fR" 4
  .IX Item "loop-invariant-max-bbs-in-loop"
*************** The number of partitions should exceed t
*** 8731,8737 ****
  The default value is 32.
  .IP "\fBlto-min-partition\fR" 4
  .IX Item "lto-min-partition"
! Size of minimal partition for \s-1WHOPR \s0(in estimated instructions).
  This prevents expenses of splitting very small programs into too many
  partitions.
  .IP "\fBcxx-max-namespaces-for-diagnostic-help\fR" 4
--- 8733,8739 ----
  The default value is 32.
  .IP "\fBlto-min-partition\fR" 4
  .IX Item "lto-min-partition"
! Size of minimal partition for \s-1WHOPR\s0 (in estimated instructions).
  This prevents expenses of splitting very small programs into too many
  partitions.
  .IP "\fBcxx-max-namespaces-for-diagnostic-help\fR" 4
*************** Link your object files with \fB\-lgcov\f
*** 8926,8934 ****
  Run the program on a representative workload to generate the arc profile
  information.  This may be repeated any number of times.  You can run
  concurrent instances of your program, and provided that the file system
! supports locking, the data files will be correctly updated.  Also
! \&\f(CW\*(C`fork\*(C'\fR calls are detected and correctly handled (double counting
! will not happen).
  .IP "*" 4
  For profile-directed optimizations, compile the source files again with
  the same optimization and code generation options plus
--- 8928,8936 ----
  Run the program on a representative workload to generate the arc profile
  information.  This may be repeated any number of times.  You can run
  concurrent instances of your program, and provided that the file system
! supports locking, the data files will be correctly updated.  Unless
! a strict \s-1ISO C\s0 dialect option is in effect, \f(CW\*(C`fork\*(C'\fR calls are
! detected and correctly handled without double counting.
  .IP "*" 4
  For profile-directed optimizations, compile the source files again with
  the same optimization and code generation options plus
*************** get trigraph conversion without warnings
*** 9654,9660 ****
  .IP "\fB\-Wtraditional\fR" 4
  .IX Item "-Wtraditional"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C. \s0 Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and problematic constructs which should be avoided.
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
--- 9656,9662 ----
  .IP "\fB\-Wtraditional\fR" 4
  .IX Item "-Wtraditional"
  Warn about certain constructs that behave differently in traditional and
! \&\s-1ISO C.\s0  Also warn about \s-1ISO C\s0 constructs that have no traditional C
  equivalent, and problematic constructs which should be avoided.
  .IP "\fB\-Wundef\fR" 4
  .IX Item "-Wundef"
*************** When \fB\-fpreprocessed\fR is in use, \s
*** 9850,9856 ****
  and loads the \s-1PCH.\s0
  .Sp
  This option is off by default, because the resulting preprocessed output
! is only really suitable as input to \s-1GCC. \s0 It is switched on by
  \&\fB\-save\-temps\fR.
  .Sp
  You should not write this \f(CW\*(C`#pragma\*(C'\fR in your own code, but it is
--- 9852,9858 ----
  and loads the \s-1PCH.\s0
  .Sp
  This option is off by default, because the resulting preprocessed output
! is only really suitable as input to \s-1GCC.\s0  It is switched on by
  \&\fB\-save\-temps\fR.
  .Sp
  You should not write this \f(CW\*(C`#pragma\*(C'\fR in your own code, but it is
*************** line.  If the value is less than 1 or gr
*** 10122,10128 ****
  ignored.  The default is 8.
  .IP "\fB\-fdebug\-cpp\fR" 4
  .IX Item "-fdebug-cpp"
! This option is only useful for debugging \s-1GCC. \s0 When used with
  \&\fB\-E\fR, dumps debugging information about location maps.  Every
  token in the output is preceded by the dump of the map its location
  belongs to.  The dump of the map holding the location of a token would
--- 10124,10130 ----
  ignored.  The default is 8.
  .IP "\fB\-fdebug\-cpp\fR" 4
  .IX Item "-fdebug-cpp"
! This option is only useful for debugging \s-1GCC.\s0  When used with
  \&\fB\-E\fR, dumps debugging information about location maps.  Every
  token in the output is preceded by the dump of the map its location
  belongs to.  The dump of the map holding the location of a token would
*************** Note that \f(CW\*(C`\-ftrack\-macro\-exp
*** 10155,10161 ****
  .IP "\fB\-fexec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fexec-charset=charset"
  Set the execution character set, used for string and character
! constants.  The default is \s-1UTF\-8.  \s0\fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
  .IP "\fB\-fwide\-exec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fwide-exec-charset=charset"
--- 10157,10163 ----
  .IP "\fB\-fexec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fexec-charset=charset"
  Set the execution character set, used for string and character
! constants.  The default is \s-1UTF\-8.\s0  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
  .IP "\fB\-fwide\-exec\-charset=\fR\fIcharset\fR" 4
  .IX Item "-fwide-exec-charset=charset"
*************** problems with encodings that do not fit
*** 10168,10176 ****
  .IP "\fB\-finput\-charset=\fR\fIcharset\fR" 4
  .IX Item "-finput-charset=charset"
  Set the input character set, used for translation from the character
! set of the input file to the source character set used by \s-1GCC. \s0 If the
  locale does not specify, or \s-1GCC\s0 cannot get this information from the
! locale, the default is \s-1UTF\-8. \s0 This can be overridden by either the locale
  or this command-line option.  Currently the command-line option takes
  precedence if there's a conflict.  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
--- 10170,10178 ----
  .IP "\fB\-finput\-charset=\fR\fIcharset\fR" 4
  .IX Item "-finput-charset=charset"
  Set the input character set, used for translation from the character
! set of the input file to the source character set used by \s-1GCC.\s0  If the
  locale does not specify, or \s-1GCC\s0 cannot get this information from the
! locale, the default is \s-1UTF\-8.\s0  This can be overridden by either the locale
  or this command-line option.  Currently the command-line option takes
  precedence if there's a conflict.  \fIcharset\fR can be any encoding
  supported by the system's \f(CW\*(C`iconv\*(C'\fR library routine.
*************** the \s-1GOT\s0 size for the linked execu
*** 11046,11052 ****
  maximum size, you get an error message from the linker indicating that
  \&\fB\-fpic\fR does not work; in that case, recompile with \fB\-fPIC\fR
  instead.  (These maximums are 8k on the \s-1SPARC,\s0 28k on AArch64 and 32k
! on the m68k and \s-1RS/6000. \s0 The x86 has no such limit.)
  .Sp
  Position-independent code requires special support, and therefore works
  only on certain machines.  For the x86, \s-1GCC\s0 supports \s-1PIC\s0 for System V
--- 11048,11054 ----
  maximum size, you get an error message from the linker indicating that
  \&\fB\-fpic\fR does not work; in that case, recompile with \fB\-fPIC\fR
  instead.  (These maximums are 8k on the \s-1SPARC,\s0 28k on AArch64 and 32k
! on the m68k and \s-1RS/6000.\s0  The x86 has no such limit.)
  .Sp
  Position-independent code requires special support, and therefore works
  only on certain machines.  For the x86, \s-1GCC\s0 supports \s-1PIC\s0 for System V
*************** Enable showing virtual operands for ever
*** 11728,11734 ****
  Enable showing line numbers for statements.
  .IP "\fBuid\fR" 4
  .IX Item "uid"
! Enable showing the unique \s-1ID \s0(\f(CW\*(C`DECL_UID\*(C'\fR) for each variable.
  .IP "\fBverbose\fR" 4
  .IX Item "verbose"
  Enable showing the tree dump for each statement.
--- 11730,11736 ----
  Enable showing line numbers for statements.
  .IP "\fBuid\fR" 4
  .IX Item "uid"
! Enable showing the unique \s-1ID\s0 (\f(CW\*(C`DECL_UID\*(C'\fR) for each variable.
  .IP "\fBverbose\fR" 4
  .IX Item "verbose"
  Enable showing the tree dump for each statement.
*************** Dump aliasing information for each funct
*** 11810,11816 ****
  appending \fI.alias\fR to the source file name.
  .IP "\fBccp\fR" 4
  .IX Item "ccp"
! Dump each function after \s-1CCP. \s0 The file name is made by appending
  \&\fI.ccp\fR to the source file name.
  .IP "\fBstoreccp\fR" 4
  .IX Item "storeccp"
--- 11812,11818 ----
  appending \fI.alias\fR to the source file name.
  .IP "\fBccp\fR" 4
  .IX Item "ccp"
! Dump each function after \s-1CCP.\s0  The file name is made by appending
  \&\fI.ccp\fR to the source file name.
  .IP "\fBstoreccp\fR" 4
  .IX Item "storeccp"
*************** values for \fIcpu\fR are
*** 12832,12852 ****
  .IP "\fBarc600\fR" 4
  .IX Item "arc600"
  .PD
! Compile for \s-1ARC600. \s0 Aliases: \fB\-mA6\fR, \fB\-mARC600\fR.
  .IP "\fB\s-1ARC601\s0\fR" 4
  .IX Item "ARC601"
  .PD 0
  .IP "\fBarc601\fR" 4
  .IX Item "arc601"
  .PD
! Compile for \s-1ARC601. \s0 Alias: \fB\-mARC601\fR.
  .IP "\fB\s-1ARC700\s0\fR" 4
  .IX Item "ARC700"
  .PD 0
  .IP "\fBarc700\fR" 4
  .IX Item "arc700"
  .PD
! Compile for \s-1ARC700. \s0 Aliases: \fB\-mA7\fR, \fB\-mARC700\fR.
  This is the default when configured with \fB\-\-with\-cpu=arc700\fR.
  .IP "\fB\s-1ARCEM\s0\fR" 4
  .IX Item "ARCEM"
--- 12834,12854 ----
  .IP "\fBarc600\fR" 4
  .IX Item "arc600"
  .PD
! Compile for \s-1ARC600.\s0  Aliases: \fB\-mA6\fR, \fB\-mARC600\fR.
  .IP "\fB\s-1ARC601\s0\fR" 4
  .IX Item "ARC601"
  .PD 0
  .IP "\fBarc601\fR" 4
  .IX Item "arc601"
  .PD
! Compile for \s-1ARC601.\s0  Alias: \fB\-mARC601\fR.
  .IP "\fB\s-1ARC700\s0\fR" 4
  .IX Item "ARC700"
  .PD 0
  .IP "\fBarc700\fR" 4
  .IX Item "arc700"
  .PD
! Compile for \s-1ARC700.\s0  Aliases: \fB\-mA7\fR, \fB\-mARC700\fR.
  This is the default when configured with \fB\-\-with\-cpu=arc700\fR.
  .IP "\fB\s-1ARCEM\s0\fR" 4
  .IX Item "ARCEM"
*************** Replaced by \fB\-mmultcost\fR.
*** 13366,13372 ****
  These \fB\-m\fR options are defined for the \s-1ARM\s0 port:
  .IP "\fB\-mabi=\fR\fIname\fR" 4
  .IX Item "-mabi=name"
! Generate code for the specified \s-1ABI. \s0 Permissible values are: \fBapcs-gnu\fR,
  \&\fBatpcs\fR, \fBaapcs\fR, \fBaapcs-linux\fR and \fBiwmmxt\fR.
  .IP "\fB\-mapcs\-frame\fR" 4
  .IX Item "-mapcs-frame"
--- 13368,13374 ----
  These \fB\-m\fR options are defined for the \s-1ARM\s0 port:
  .IP "\fB\-mabi=\fR\fIname\fR" 4
  .IX Item "-mabi=name"
! Generate code for the specified \s-1ABI.\s0  Permissible values are: \fBapcs-gnu\fR,
  \&\fBatpcs\fR, \fBaapcs\fR, \fBaapcs-linux\fR and \fBiwmmxt\fR.
  .IP "\fB\-mapcs\-frame\fR" 4
  .IX Item "-mapcs-frame"
*************** The default for this option is@tie{}\fBa
*** 13829,13836 ****
  .ie n .IP """avrxmega5""" 4
  .el .IP "\f(CWavrxmega5\fR" 4
  .IX Item "avrxmega5"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 64@tie{}KiB and up to 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.
! \&\s0\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega64a1\*(C'\fR, \f(CW\*(C`atxmega64a1u\*(C'\fR.
  .ie n .IP """avrxmega6""" 4
  .el .IP "\f(CWavrxmega6\fR" 4
  .IX Item "avrxmega6"
--- 13831,13838 ----
  .ie n .IP """avrxmega5""" 4
  .el .IP "\f(CWavrxmega5\fR" 4
  .IX Item "avrxmega5"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 64@tie{}KiB and up to 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.\s0
! \&\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega64a1\*(C'\fR, \f(CW\*(C`atxmega64a1u\*(C'\fR.
  .ie n .IP """avrxmega6""" 4
  .el .IP "\f(CWavrxmega6\fR" 4
  .IX Item "avrxmega6"
*************** The default for this option is@tie{}\fBa
*** 13839,13846 ****
  .ie n .IP """avrxmega7""" 4
  .el .IP "\f(CWavrxmega7\fR" 4
  .IX Item "avrxmega7"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.
! \&\s0\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega128a1\*(C'\fR, \f(CW\*(C`atxmega128a1u\*(C'\fR, \f(CW\*(C`atxmega128a4u\*(C'\fR.
  .ie n .IP """avrtiny""" 4
  .el .IP "\f(CWavrtiny\fR" 4
  .IX Item "avrtiny"
--- 13841,13848 ----
  .ie n .IP """avrxmega7""" 4
  .el .IP "\f(CWavrxmega7\fR" 4
  .IX Item "avrxmega7"
! \&\*(L"\s-1XMEGA\*(R"\s0 devices with more than 128@tie{}KiB of program memory and more than 64@tie{}KiB of \s-1RAM.\s0
! \&\fImcu\fR\f(CW@tie\fR{}= \f(CW\*(C`atxmega128a1\*(C'\fR, \f(CW\*(C`atxmega128a1u\*(C'\fR, \f(CW\*(C`atxmega128a4u\*(C'\fR.
  .ie n .IP """avrtiny""" 4
  .el .IP "\f(CWavrtiny\fR" 4
  .IX Item "avrtiny"
*************** performed as
*** 13949,13959 ****
  Only change the lower 8@tie{}bits of the stack pointer.
  .IP "\fB\-nodevicelib\fR" 4
  .IX Item "-nodevicelib"
! Don't link against AVR-LibC's device specific library \f(CW\*(C`libdev.a\*(C'\fR.
  .IP "\fB\-Waddr\-space\-convert\fR" 4
  .IX Item "-Waddr-space-convert"
  Warn about conversions between address spaces in the case where the
  resulting address space is not contained in the incoming address space.
  .PP
  \f(CW\*(C`EIND\*(C'\fR and Devices with More Than 128 Ki Bytes of Flash
  .IX Subsection "EIND and Devices with More Than 128 Ki Bytes of Flash"
--- 13951,13965 ----
  Only change the lower 8@tie{}bits of the stack pointer.
  .IP "\fB\-nodevicelib\fR" 4
  .IX Item "-nodevicelib"
! Don't link against AVR-LibC's device specific library \f(CW\*(C`lib<mcu>.a\*(C'\fR.
  .IP "\fB\-Waddr\-space\-convert\fR" 4
  .IX Item "-Waddr-space-convert"
  Warn about conversions between address spaces in the case where the
  resulting address space is not contained in the incoming address space.
+ .IP "\fB\-Wmisspelled\-isr\fR" 4
+ .IX Item "-Wmisspelled-isr"
+ Warn if the \s-1ISR\s0 is misspelled, i.e. without \f(CW\*(C`_\|_vector\*(C'\fR prefix.
+ Enabled by default.
  .PP
  \f(CW\*(C`EIND\*(C'\fR and Devices with More Than 128 Ki Bytes of Flash
  .IX Subsection "EIND and Devices with More Than 128 Ki Bytes of Flash"
*************** for \fImcu\fR=\f(CW\*(C`avrtiny\*(C'\fR,
*** 14161,14167 ****
  If \fImcu\fR specifies a device, this built-in macro is set
  accordingly. For example, with \fB\-mmcu=atmega8\fR the macro is
  defined to \f(CW4\fR.
! .ie n .IP """_\|_AVR_\f(CIDevice\f(CW_\|_""" 4
  .el .IP "\f(CW_\|_AVR_\f(CIDevice\f(CW_\|_\fR" 4
  .IX Item "__AVR_Device__"
  Setting \fB\-mmcu=\fR\fIdevice\fR defines this built-in macro which reflects
--- 14167,14173 ----
  If \fImcu\fR specifies a device, this built-in macro is set
  accordingly. For example, with \fB\-mmcu=atmega8\fR the macro is
  defined to \f(CW4\fR.
! .ie n .IP """_\|_AVR_\fIDevice\fP_\|_""" 4
  .el .IP "\f(CW_\|_AVR_\f(CIDevice\f(CW_\|_\fR" 4
  .IX Item "__AVR_Device__"
  Setting \fB\-mmcu=\fR\fIdevice\fR defines this built-in macro which reflects
*************** The definition of these macros is affect
*** 14255,14261 ****
  .el .IP "\f(CW_\|_AVR_SP8_\|_\fR" 4
  .IX Item "__AVR_SP8__"
  .PD
! The device has the \s-1SPH \s0(high part of stack pointer) special function
  register or has an 8\-bit stack pointer, respectively.
  The definition of these macros is affected by \fB\-mmcu=\fR and
  in the cases of \fB\-mmcu=avr2\fR and \fB\-mmcu=avr25\fR also
--- 14261,14267 ----
  .el .IP "\f(CW_\|_AVR_SP8_\|_\fR" 4
  .IX Item "__AVR_SP8__"
  .PD
! The device has the \s-1SPH\s0 (high part of stack pointer) special function
  register or has an 8\-bit stack pointer, respectively.
  The definition of these macros is affected by \fB\-mmcu=\fR and
  in the cases of \fB\-mmcu=avr2\fR and \fB\-mmcu=avr25\fR also
*************** set.
*** 14297,14303 ****
  .el .IP "\f(CW_\|_AVR_ISA_RMW_\|_\fR" 4
  .IX Item "__AVR_ISA_RMW__"
  The device has Read-Modify-Write instructions (\s-1XCH, LAC, LAS\s0 and \s-1LAT\s0).
! .ie n .IP """_\|_AVR_SFR_OFFSET_\|_=\f(CIoffset\f(CW""" 4
  .el .IP "\f(CW_\|_AVR_SFR_OFFSET_\|_=\f(CIoffset\f(CW\fR" 4
  .IX Item "__AVR_SFR_OFFSET__=offset"
  Instructions that can address I/O special function registers directly
--- 14303,14309 ----
  .el .IP "\f(CW_\|_AVR_ISA_RMW_\|_\fR" 4
  .IX Item "__AVR_ISA_RMW__"
  The device has Read-Modify-Write instructions (\s-1XCH, LAC, LAS\s0 and \s-1LAT\s0).
! .ie n .IP """_\|_AVR_SFR_OFFSET_\|_=\fIoffset\fP""" 4
  .el .IP "\f(CW_\|_AVR_SFR_OFFSET_\|_=\f(CIoffset\f(CW\fR" 4
  .IX Item "__AVR_SFR_OFFSET__=offset"
  Instructions that can address I/O special function registers directly
*************** or storage for local variables needs to
*** 14633,14639 ****
  With \fB\-fpic\fR and \fB\-fPIC\fR, don't generate (do generate)
  instruction sequences that load addresses for functions from the \s-1PLT\s0 part
  of the \s-1GOT\s0 rather than (traditional on other architectures) calls to the
! \&\s-1PLT. \s0 The default is \fB\-mgotplt\fR.
  .IP "\fB\-melf\fR" 4
  .IX Item "-melf"
  Legacy no-op option only recognized with the cris-axis-elf and
--- 14639,14645 ----
  With \fB\-fpic\fR and \fB\-fPIC\fR, don't generate (do generate)
  instruction sequences that load addresses for functions from the \s-1PLT\s0 part
  of the \s-1GOT\s0 rather than (traditional on other architectures) calls to the
! \&\s-1PLT.\s0  The default is \fB\-mgotplt\fR.
  .IP "\fB\-melf\fR" 4
  .IX Item "-melf"
  Legacy no-op option only recognized with the cris-axis-elf and
*************** compilers call this option \fB\-ieee_wit
*** 14999,15005 ****
  .IP "\fB\-mieee\-with\-inexact\fR" 4
  .IX Item "-mieee-with-inexact"
  This is like \fB\-mieee\fR except the generated code also maintains
! the \s-1IEEE \s0\fIinexact-flag\fR.  Turning on this option causes the
  generated code to implement fully-compliant \s-1IEEE\s0 math.  In addition to
  \&\f(CW\*(C`_IEEE_FP\*(C'\fR, \f(CW\*(C`_IEEE_FP_EXACT\*(C'\fR is defined as a preprocessor
  macro.  On some Alpha implementations the resulting code may execute
--- 15005,15011 ----
  .IP "\fB\-mieee\-with\-inexact\fR" 4
  .IX Item "-mieee-with-inexact"
  This is like \fB\-mieee\fR except the generated code also maintains
! the \s-1IEEE\s0 \fIinexact-flag\fR.  Turning on this option causes the
  generated code to implement fully-compliant \s-1IEEE\s0 math.  In addition to
  \&\f(CW\*(C`_IEEE_FP\*(C'\fR, \f(CW\*(C`_IEEE_FP_EXACT\*(C'\fR is defined as a preprocessor
  macro.  On some Alpha implementations the resulting code may execute
*************** These \fB\-m\fR options are defined for
*** 15628,15634 ****
  .IP "\fB\-march=\fR\fIarchitecture-type\fR" 4
  .IX Item "-march=architecture-type"
  Generate code for the specified architecture.  The choices for
! \&\fIarchitecture-type\fR are \fB1.0\fR for \s-1PA 1.0, \s0\fB1.1\fR for \s-1PA
  1.1,\s0 and \fB2.0\fR for \s-1PA 2.0\s0 processors.  Refer to
  \&\fI/usr/lib/sched.models\fR on an HP-UX system to determine the proper
  architecture option for your machine.  Code compiled for lower numbered
--- 15634,15640 ----
  .IP "\fB\-march=\fR\fIarchitecture-type\fR" 4
  .IX Item "-march=architecture-type"
  Generate code for the specified architecture.  The choices for
! \&\fIarchitecture-type\fR are \fB1.0\fR for \s-1PA 1.0,\s0 \fB1.1\fR for \s-1PA
  1.1,\s0 and \fB2.0\fR for \s-1PA 2.0\s0 processors.  Refer to
  \&\fI/usr/lib/sched.models\fR on an HP-UX system to determine the proper
  architecture option for your machine.  Code compiled for lower numbered
*************** other way around.
*** 15643,15648 ****
--- 15649,15661 ----
  .IX Item "-mpa-risc-2-0"
  .PD
  Synonyms for \fB\-march=1.0\fR, \fB\-march=1.1\fR, and \fB\-march=2.0\fR respectively.
+ .IP "\fB\-mcaller\-copies\fR" 4
+ .IX Item "-mcaller-copies"
+ The caller copies function arguments passed by hidden reference.  This
+ option should be used with care as it is not compatible with the default
+ 32\-bit runtime.  However, only aggregates larger than eight bytes are
+ passed by hidden reference and the option provides better compatibility
+ with OpenMP.
  .IP "\fB\-mjump\-in\-delay\fR" 4
  .IX Item "-mjump-in-delay"
  This option is ignored and provided for compatibility purposes only.
*************** library that comes with \s-1GCC,\s0 with
*** 15716,15728 ****
  this to work.
  .IP "\fB\-msio\fR" 4
  .IX Item "-msio"
! Generate the predefine, \f(CW\*(C`_SIO\*(C'\fR, for server \s-1IO. \s0 The default is
  \&\fB\-mwsio\fR.  This generates the predefines, \f(CW\*(C`_\|_hp9000s700\*(C'\fR,
! \&\f(CW\*(C`_\|_hp9000s700_\|_\*(C'\fR and \f(CW\*(C`_WSIO\*(C'\fR, for workstation \s-1IO. \s0 These
  options are available under HP-UX and HI-UX.
  .IP "\fB\-mgnu\-ld\fR" 4
  .IX Item "-mgnu-ld"
! Use options specific to \s-1GNU \s0\fBld\fR.
  This passes \fB\-shared\fR to \fBld\fR when
  building a shared library.  It is the default when \s-1GCC\s0 is configured,
  explicitly or implicitly, with the \s-1GNU\s0 linker.  This option does not
--- 15729,15741 ----
  this to work.
  .IP "\fB\-msio\fR" 4
  .IX Item "-msio"
! Generate the predefine, \f(CW\*(C`_SIO\*(C'\fR, for server \s-1IO.\s0  The default is
  \&\fB\-mwsio\fR.  This generates the predefines, \f(CW\*(C`_\|_hp9000s700\*(C'\fR,
! \&\f(CW\*(C`_\|_hp9000s700_\|_\*(C'\fR and \f(CW\*(C`_WSIO\*(C'\fR, for workstation \s-1IO.\s0  These
  options are available under HP-UX and HI-UX.
  .IP "\fB\-mgnu\-ld\fR" 4
  .IX Item "-mgnu-ld"
! Use options specific to \s-1GNU\s0 \fBld\fR.
  This passes \fB\-shared\fR to \fBld\fR when
  building a shared library.  It is the default when \s-1GCC\s0 is configured,
  explicitly or implicitly, with the \s-1GNU\s0 linker.  This option does not
*************** using \fBwhich `gcc \-print\-prog\-name=
*** 15735,15741 ****
  on the 64\-bit HP-UX \s-1GCC,\s0 i.e. configured with \fBhppa*64*\-*\-hpux*\fR.
  .IP "\fB\-mhp\-ld\fR" 4
  .IX Item "-mhp-ld"
! Use options specific to \s-1HP \s0\fBld\fR.
  This passes \fB\-b\fR to \fBld\fR when building
  a shared library and passes \fB+Accept TypeMismatch\fR to \fBld\fR on all
  links.  It is the default when \s-1GCC\s0 is configured, explicitly or
--- 15748,15754 ----
  on the 64\-bit HP-UX \s-1GCC,\s0 i.e. configured with \fBhppa*64*\-*\-hpux*\fR.
  .IP "\fB\-mhp\-ld\fR" 4
  .IX Item "-mhp-ld"
! Use options specific to \s-1HP\s0 \fBld\fR.
  This passes \fB\-b\fR to \fBld\fR when building
  a shared library and passes \fB+Accept TypeMismatch\fR to \fBld\fR on all
  links.  It is the default when \s-1GCC\s0 is configured, explicitly or
*************** have to be emulated by software on the 6
*** 16402,16408 ****
  does not have code to emulate those instructions.
  .IP "\fB\-mcpu32\fR" 4
  .IX Item "-mcpu32"
! Generate output for a \s-1CPU32. \s0 This is the default
  when the compiler is configured for CPU32\-based systems.
  It is equivalent to \fB\-march=cpu32\fR.
  .Sp
--- 16415,16421 ----
  does not have code to emulate those instructions.
  .IP "\fB\-mcpu32\fR" 4
  .IX Item "-mcpu32"
! Generate output for a \s-1CPU32.\s0  This is the default
  when the compiler is configured for CPU32\-based systems.
  It is equivalent to \fB\-march=cpu32\fR.
  .Sp
*************** Use this option for microcontrollers wit
*** 16411,16417 ****
  68336, 68340, 68341, 68349 and 68360.
  .IP "\fB\-m5200\fR" 4
  .IX Item "-m5200"
! Generate output for a 520X ColdFire \s-1CPU. \s0 This is the default
  when the compiler is configured for 520X\-based systems.
  It is equivalent to \fB\-mcpu=5206\fR, and is now deprecated
  in favor of that option.
--- 16424,16430 ----
  68336, 68340, 68341, 68349 and 68360.
  .IP "\fB\-m5200\fR" 4
  .IX Item "-m5200"
! Generate output for a 520X ColdFire \s-1CPU.\s0  This is the default
  when the compiler is configured for 520X\-based systems.
  It is equivalent to \fB\-mcpu=5206\fR, and is now deprecated
  in favor of that option.
*************** Use this option for microcontroller with
*** 16420,16426 ****
  the \s-1MCF5202, MCF5203, MCF5204\s0 and \s-1MCF5206.\s0
  .IP "\fB\-m5206e\fR" 4
  .IX Item "-m5206e"
! Generate output for a 5206e ColdFire \s-1CPU. \s0 The option is now
  deprecated in favor of the equivalent \fB\-mcpu=5206e\fR.
  .IP "\fB\-m528x\fR" 4
  .IX Item "-m528x"
--- 16433,16439 ----
  the \s-1MCF5202, MCF5203, MCF5204\s0 and \s-1MCF5206.\s0
  .IP "\fB\-m5206e\fR" 4
  .IX Item "-m5206e"
! Generate output for a 5206e ColdFire \s-1CPU.\s0  The option is now
  deprecated in favor of the equivalent \fB\-mcpu=5206e\fR.
  .IP "\fB\-m528x\fR" 4
  .IX Item "-m528x"
*************** The option is now deprecated in favor of
*** 16429,16443 ****
  \&\fB\-mcpu=528x\fR.
  .IP "\fB\-m5307\fR" 4
  .IX Item "-m5307"
! Generate output for a ColdFire 5307 \s-1CPU. \s0 The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5307\fR.
  .IP "\fB\-m5407\fR" 4
  .IX Item "-m5407"
! Generate output for a ColdFire 5407 \s-1CPU. \s0 The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5407\fR.
  .IP "\fB\-mcfv4e\fR" 4
  .IX Item "-mcfv4e"
! Generate output for a ColdFire V4e family \s-1CPU \s0(e.g. 547x/548x).
  This includes use of hardware floating-point instructions.
  The option is equivalent to \fB\-mcpu=547x\fR, and is now
  deprecated in favor of that option.
--- 16442,16456 ----
  \&\fB\-mcpu=528x\fR.
  .IP "\fB\-m5307\fR" 4
  .IX Item "-m5307"
! Generate output for a ColdFire 5307 \s-1CPU.\s0  The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5307\fR.
  .IP "\fB\-m5407\fR" 4
  .IX Item "-m5407"
! Generate output for a ColdFire 5407 \s-1CPU.\s0  The option is now deprecated
  in favor of the equivalent \fB\-mcpu=5407\fR.
  .IP "\fB\-mcfv4e\fR" 4
  .IX Item "-mcfv4e"
! Generate output for a ColdFire V4e family \s-1CPU\s0 (e.g. 547x/548x).
  This includes use of hardware floating-point instructions.
  The option is equivalent to \fB\-mcpu=547x\fR, and is now
  deprecated in favor of that option.
*************** The option is equivalent to \fB\-march=6
*** 16464,16470 ****
  .IX Item "-m68881"
  .PD
  Generate floating-point instructions.  This is the default for 68020
! and above, and for ColdFire devices that have an \s-1FPU. \s0 It defines the
  macro \f(CW\*(C`_\|_HAVE_68881_\|_\*(C'\fR on M680x0 targets and \f(CW\*(C`_\|_mcffpu_\|_\*(C'\fR
  on ColdFire targets.
  .IP "\fB\-msoft\-float\fR" 4
--- 16477,16483 ----
  .IX Item "-m68881"
  .PD
  Generate floating-point instructions.  This is the default for 68020
! and above, and for ColdFire devices that have an \s-1FPU.\s0  It defines the
  macro \f(CW\*(C`_\|_HAVE_68881_\|_\*(C'\fR on M680x0 targets and \f(CW\*(C`_\|_mcffpu_\|_\*(C'\fR
  on ColdFire targets.
  .IP "\fB\-msoft\-float\fR" 4
*************** the default for ColdFire devices that ha
*** 16481,16488 ****
  Generate (do not generate) ColdFire hardware divide and remainder
  instructions.  If \fB\-march\fR is used without \fB\-mcpu\fR,
  the default is \*(L"on\*(R" for ColdFire architectures and \*(L"off\*(R" for M680x0
! architectures.  Otherwise, the default is taken from the target \s-1CPU
! \&\s0(either the default \s-1CPU,\s0 or the one specified by \fB\-mcpu\fR).  For
  example, the default is \*(L"off\*(R" for \fB\-mcpu=5206\fR and \*(L"on\*(R" for
  \&\fB\-mcpu=5206e\fR.
  .Sp
--- 16494,16501 ----
  Generate (do not generate) ColdFire hardware divide and remainder
  instructions.  If \fB\-march\fR is used without \fB\-mcpu\fR,
  the default is \*(L"on\*(R" for ColdFire architectures and \*(L"off\*(R" for M680x0
! architectures.  Otherwise, the default is taken from the target \s-1CPU\s0
! (either the default \s-1CPU,\s0 or the one specified by \fB\-mcpu\fR).  For
  example, the default is \*(L"off\*(R" for \fB\-mcpu=5206\fR and \*(L"on\*(R" for
  \&\fB\-mcpu=5206e\fR.
  .Sp
*************** The processor names are:
*** 16967,16973 ****
  \&\fBvr5000\fR, \fBvr5400\fR, \fBvr5500\fR,
  \&\fBxlr\fR and \fBxlp\fR.
  The special value \fBfrom-abi\fR selects the
! most compatible architecture for the selected \s-1ABI \s0(that is,
  \&\fBmips1\fR for 32\-bit ABIs and \fBmips3\fR for 64\-bit ABIs).
  .Sp
  The native Linux/GNU toolchain also supports the value \fBnative\fR,
--- 16980,16986 ----
  \&\fBvr5000\fR, \fBvr5400\fR, \fBvr5500\fR,
  \&\fBxlr\fR and \fBxlp\fR.
  The special value \fBfrom-abi\fR selects the
! most compatible architecture for the selected \s-1ABI\s0 (that is,
  \&\fBmips1\fR for 32\-bit ABIs and \fBmips3\fR for 64\-bit ABIs).
  .Sp
  The native Linux/GNU toolchain also supports the value \fBnative\fR,
*************** remains the same in that the even-number
*** 17130,17137 ****
  are saved.
  .Sp
  Two additional variants of the o32 \s-1ABI\s0 are supported to enable
! a transition from 32\-bit to 64\-bit registers.  These are \s-1FPXX
! \&\s0(\fB\-mfpxx\fR) and \s-1FP64A \s0(\fB\-mfp64\fR \fB\-mno\-odd\-spreg\fR).
  The \s-1FPXX\s0 extension mandates that all code must execute correctly
  when run using 32\-bit or 64\-bit registers.  The code can be interlinked
  with either \s-1FP32\s0 or \s-1FP64,\s0 but not both.
--- 17143,17150 ----
  are saved.
  .Sp
  Two additional variants of the o32 \s-1ABI\s0 are supported to enable
! a transition from 32\-bit to 64\-bit registers.  These are \s-1FPXX\s0
! (\fB\-mfpxx\fR) and \s-1FP64A\s0 (\fB\-mfp64\fR \fB\-mno\-odd\-spreg\fR).
  The \s-1FPXX\s0 extension mandates that all code must execute correctly
  when run using 32\-bit or 64\-bit registers.  The code can be interlinked
  with either \s-1FP32\s0 or \s-1FP64,\s0 but not both.
*************** operations.  This is the default.
*** 17264,17271 ****
  .IX Item "-mno-odd-spreg"
  .PD
  Enable the use of odd-numbered single-precision floating-point registers
! for the o32 \s-1ABI. \s0 This is the default for processors that are known to
! support these registers.  When using the o32 \s-1FPXX ABI, \s0\fB\-mno\-odd\-spreg\fR
  is set by default.
  .IP "\fB\-mabs=2008\fR" 4
  .IX Item "-mabs=2008"
--- 17277,17284 ----
  .IX Item "-mno-odd-spreg"
  .PD
  Enable the use of odd-numbered single-precision floating-point registers
! for the o32 \s-1ABI.\s0  This is the default for processors that are known to
! support these registers.  When using the o32 \s-1FPXX ABI,\s0 \fB\-mno\-odd\-spreg\fR
  is set by default.
  .IP "\fB\-mabs=2008\fR" 4
  .IX Item "-mabs=2008"
*************** configurations; see the installation doc
*** 17334,17341 ****
  .IP "\fB\-mno\-dsp\fR" 4
  .IX Item "-mno-dsp"
  .PD
! Use (do not use) revision 1 of the \s-1MIPS DSP ASE.
!  \s0 This option defines the
  preprocessor macro \f(CW\*(C`_\|_mips_dsp\*(C'\fR.  It also defines
  \&\f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 1.
  .IP "\fB\-mdspr2\fR" 4
--- 17347,17354 ----
  .IP "\fB\-mno\-dsp\fR" 4
  .IX Item "-mno-dsp"
  .PD
! Use (do not use) revision 1 of the \s-1MIPS DSP ASE.\s0
!   This option defines the
  preprocessor macro \f(CW\*(C`_\|_mips_dsp\*(C'\fR.  It also defines
  \&\f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 1.
  .IP "\fB\-mdspr2\fR" 4
*************** preprocessor macro \f(CW\*(C`_\|_mips_ds
*** 17344,17351 ****
  .IP "\fB\-mno\-dspr2\fR" 4
  .IX Item "-mno-dspr2"
  .PD
! Use (do not use) revision 2 of the \s-1MIPS DSP ASE.
!  \s0 This option defines the
  preprocessor macros \f(CW\*(C`_\|_mips_dsp\*(C'\fR and \f(CW\*(C`_\|_mips_dspr2\*(C'\fR.
  It also defines \f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 2.
  .IP "\fB\-msmartmips\fR" 4
--- 17357,17364 ----
  .IP "\fB\-mno\-dspr2\fR" 4
  .IX Item "-mno-dspr2"
  .PD
! Use (do not use) revision 2 of the \s-1MIPS DSP ASE.\s0
!   This option defines the
  preprocessor macros \f(CW\*(C`_\|_mips_dsp\*(C'\fR and \f(CW\*(C`_\|_mips_dspr2\*(C'\fR.
  It also defines \f(CW\*(C`_\|_mips_dsp_rev\*(C'\fR to 2.
  .IP "\fB\-msmartmips\fR" 4
*************** hardware floating-point support to be en
*** 17379,17385 ****
  .IP "\fB\-mno\-mips3d\fR" 4
  .IX Item "-mno-mips3d"
  .PD
! Use (do not use) the \s-1MIPS\-3D ASE.  \s0
  The option \fB\-mips3d\fR implies \fB\-mpaired\-single\fR.
  .IP "\fB\-mmicromips\fR" 4
  .IX Item "-mmicromips"
--- 17392,17398 ----
  .IP "\fB\-mno\-mips3d\fR" 4
  .IX Item "-mno-mips3d"
  .PD
! Use (do not use) the \s-1MIPS\-3D ASE.\s0  
  The option \fB\-mips3d\fR implies \fB\-mpaired\-single\fR.
  .IP "\fB\-mmicromips\fR" 4
  .IX Item "-mmicromips"
*************** determined.
*** 17436,17442 ****
  Force \f(CW\*(C`long\*(C'\fR, \f(CW\*(C`int\*(C'\fR, and pointer types to be 32 bits wide.
  .Sp
  The default size of \f(CW\*(C`int\*(C'\fRs, \f(CW\*(C`long\*(C'\fRs and pointers depends on
! the \s-1ABI. \s0 All the supported ABIs use 32\-bit \f(CW\*(C`int\*(C'\fRs.  The n64 \s-1ABI\s0
  uses 64\-bit \f(CW\*(C`long\*(C'\fRs, as does the 64\-bit \s-1EABI\s0; the others use
  32\-bit \f(CW\*(C`long\*(C'\fRs.  Pointers are the same size as \f(CW\*(C`long\*(C'\fRs,
  or the same size as integer registers, whichever is smaller.
--- 17449,17455 ----
  Force \f(CW\*(C`long\*(C'\fR, \f(CW\*(C`int\*(C'\fR, and pointer types to be 32 bits wide.
  .Sp
  The default size of \f(CW\*(C`int\*(C'\fRs, \f(CW\*(C`long\*(C'\fRs and pointers depends on
! the \s-1ABI.\s0  All the supported ABIs use 32\-bit \f(CW\*(C`int\*(C'\fRs.  The n64 \s-1ABI\s0
  uses 64\-bit \f(CW\*(C`long\*(C'\fRs, as does the 64\-bit \s-1EABI\s0; the others use
  32\-bit \f(CW\*(C`long\*(C'\fRs.  Pointers are the same size as \f(CW\*(C`long\*(C'\fRs,
  or the same size as integer registers, whichever is smaller.
*************** or the same size as integer registers, w
*** 17447,17453 ****
  .IX Item "-mno-sym32"
  .PD
  Assume (do not assume) that all symbols have 32\-bit values, regardless
! of the selected \s-1ABI. \s0 This option is useful in combination with
  \&\fB\-mabi=64\fR and \fB\-mno\-abicalls\fR because it allows \s-1GCC\s0
  to generate shorter and faster references to symbolic addresses.
  .IP "\fB\-G\fR \fInum\fR" 4
--- 17460,17466 ----
  .IX Item "-mno-sym32"
  .PD
  Assume (do not assume) that all symbols have 32\-bit values, regardless
! of the selected \s-1ABI.\s0  This option is useful in combination with
  \&\fB\-mabi=64\fR and \fB\-mno\-abicalls\fR because it allows \s-1GCC\s0
  to generate shorter and faster references to symbolic addresses.
  .IP "\fB\-G\fR \fInum\fR" 4
*************** otherwise.
*** 17736,17742 ****
  .IP "\fB\-mno\-fix\-rm7000\fR" 4
  .IX Item "-mno-fix-rm7000"
  .PD
! Work around the \s-1RM7000 \s0\f(CW\*(C`dmult\*(C'\fR/\f(CW\*(C`dmultu\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC.\s0
  .IP "\fB\-mfix\-vr4120\fR" 4
  .IX Item "-mfix-vr4120"
--- 17749,17755 ----
  .IP "\fB\-mno\-fix\-rm7000\fR" 4
  .IX Item "-mno-fix-rm7000"
  .PD
! Work around the \s-1RM7000\s0 \f(CW\*(C`dmult\*(C'\fR/\f(CW\*(C`dmultu\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC.\s0
  .IP "\fB\-mfix\-vr4120\fR" 4
  .IX Item "-mfix-vr4120"
*************** instructions.  These errata are handled
*** 17763,17772 ****
  .RE
  .IP "\fB\-mfix\-vr4130\fR" 4
  .IX Item "-mfix-vr4130"
! Work around the \s-1VR4130 \s0\f(CW\*(C`mflo\*(C'\fR/\f(CW\*(C`mfhi\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC,\s0
  although \s-1GCC\s0 avoids using \f(CW\*(C`mflo\*(C'\fR and \f(CW\*(C`mfhi\*(C'\fR if the
! \&\s-1VR4130 \s0\f(CW\*(C`macc\*(C'\fR, \f(CW\*(C`macchi\*(C'\fR, \f(CW\*(C`dmacc\*(C'\fR and \f(CW\*(C`dmacchi\*(C'\fR
  instructions are available instead.
  .IP "\fB\-mfix\-sb1\fR" 4
  .IX Item "-mfix-sb1"
--- 17776,17785 ----
  .RE
  .IP "\fB\-mfix\-vr4130\fR" 4
  .IX Item "-mfix-vr4130"
! Work around the \s-1VR4130\s0 \f(CW\*(C`mflo\*(C'\fR/\f(CW\*(C`mfhi\*(C'\fR errata.  The
  workarounds are implemented by the assembler rather than by \s-1GCC,\s0
  although \s-1GCC\s0 avoids using \f(CW\*(C`mflo\*(C'\fR and \f(CW\*(C`mfhi\*(C'\fR if the
! \&\s-1VR4130\s0 \f(CW\*(C`macc\*(C'\fR, \f(CW\*(C`macchi\*(C'\fR, \f(CW\*(C`dmacc\*(C'\fR and \f(CW\*(C`dmacchi\*(C'\fR
  instructions are available instead.
  .IP "\fB\-mfix\-sb1\fR" 4
  .IX Item "-mfix-sb1"
*************** The default is \fB\-mno\-mcount\-ra\-add
*** 17993,17999 ****
  .IP "\fB\-mno\-frame\-header\-opt\fR" 4
  .IX Item "-mno-frame-header-opt"
  .PD
! Enable (disable) frame header optimization in the o32 \s-1ABI. \s0 When using the
  o32 \s-1ABI,\s0 calling functions will allocate 16 bytes on the stack for the called
  function to write out register arguments.  When enabled, this optimization
  will suppress the allocation of the frame header if it can be determined that
--- 18006,18012 ----
  .IP "\fB\-mno\-frame\-header\-opt\fR" 4
  .IX Item "-mno-frame-header-opt"
  .PD
! Enable (disable) frame header optimization in the o32 \s-1ABI.\s0  When using the
  o32 \s-1ABI,\s0 calling functions will allocate 16 bytes on the stack for the called
  function to write out register arguments.  When enabled, this optimization
  will suppress the allocation of the frame header if it can be determined that
*************** header file.
*** 18198,18204 ****
  The option also sets the \s-1ISA\s0 to use.  If the \s-1MCU\s0 name is one that is
  known to only support the 430 \s-1ISA\s0 then that is selected, otherwise the
  430X \s-1ISA\s0 is selected.  A generic \s-1MCU\s0 name of \fBmsp430\fR can also be
! used to select the 430 \s-1ISA. \s0 Similarly the generic \fBmsp430x\fR \s-1MCU\s0
  name selects the 430X \s-1ISA.\s0
  .Sp
  In addition an MCU-specific linker script is added to the linker
--- 18211,18217 ----
  The option also sets the \s-1ISA\s0 to use.  If the \s-1MCU\s0 name is one that is
  known to only support the 430 \s-1ISA\s0 then that is selected, otherwise the
  430X \s-1ISA\s0 is selected.  A generic \s-1MCU\s0 name of \fBmsp430\fR can also be
! used to select the 430 \s-1ISA.\s0  Similarly the generic \fBmsp430x\fR \s-1MCU\s0
  name selects the 430X \s-1ISA.\s0
  .Sp
  In addition an MCU-specific linker script is added to the linker
*************** and not emit \f(CW\*(C`div\*(C'\fR and \
*** 18500,18507 ****
  .IP "\fB\-mno\-cdx\fR" 4
  .IX Item "-mno-cdx"
  .PD
! Enable or disable generation of Nios \s-1II R2 BMX \s0(bit manipulation) and
! \&\s-1CDX \s0(code density) instructions.  Enabling these instructions also
  requires \fB\-march=r2\fR.  Since these instructions are optional
  extensions to the R2 architecture, the default is not to emit them.
  .IP "\fB\-mcustom\-\fR\fIinsn\fR\fB=\fR\fIN\fR" 4
--- 18513,18520 ----
  .IP "\fB\-mno\-cdx\fR" 4
  .IX Item "-mno-cdx"
  .PD
! Enable or disable generation of Nios \s-1II R2 BMX\s0 (bit manipulation) and
! \&\s-1CDX\s0 (code density) instructions.  Enabling these instructions also
  requires \fB\-march=r2\fR.  Since these instructions are optional
  extensions to the R2 architecture, the default is not to emit them.
  .IP "\fB\-mcustom\-\fR\fIinsn\fR\fB=\fR\fIN\fR" 4
*************** function attribute
*** 18678,18687 ****
  or pragma.
  .PP
  These additional \fB\-m\fR options are available for the Altera Nios \s-1II
! ELF \s0(bare-metal) target:
  .IP "\fB\-mhal\fR" 4
  .IX Item "-mhal"
! Link with \s-1HAL BSP. \s0 This suppresses linking with the GCC-provided C runtime
  startup and termination code, and is typically used in conjunction with
  \&\fB\-msys\-crt0=\fR to specify the location of the alternate startup code
  provided by the \s-1HAL BSP.\s0
--- 18691,18700 ----
  or pragma.
  .PP
  These additional \fB\-m\fR options are available for the Altera Nios \s-1II
! ELF\s0 (bare-metal) target:
  .IP "\fB\-mhal\fR" 4
  .IX Item "-mhal"
! Link with \s-1HAL BSP.\s0  This suppresses linking with the GCC-provided C runtime
  startup and termination code, and is typically used in conjunction with
  \&\fB\-msys\-crt0=\fR to specify the location of the alternate startup code
  provided by the \s-1HAL BSP.\s0
*************** Return floating-point results in memory.
*** 18742,18748 ****
  Generate code for a \s-1PDP\-11/40.\s0
  .IP "\fB\-m45\fR" 4
  .IX Item "-m45"
! Generate code for a \s-1PDP\-11/45. \s0 This is the default.
  .IP "\fB\-m10\fR" 4
  .IX Item "-m10"
  Generate code for a \s-1PDP\-11/10.\s0
--- 18755,18761 ----
  Generate code for a \s-1PDP\-11/40.\s0
  .IP "\fB\-m45\fR" 4
  .IX Item "-m45"
! Generate code for a \s-1PDP\-11/45.\s0  This is the default.
  .IP "\fB\-m10\fR" 4
  .IX Item "-m10"
  Generate code for a \s-1PDP\-11/10.\s0
*************** work properly on all types of \s-1AE.\s0
*** 18822,18828 ****
  \&\fB\-mae=MUL\fR selects a \s-1MUL AE\s0 type.  This is the most useful \s-1AE\s0 type
  for compiled code, and is the default.
  .Sp
! \&\fB\-mae=MAC\fR selects a DSP-style \s-1MAC AE. \s0 Code compiled with this
  option may suffer from poor performance of byte (char) manipulation,
  since the \s-1DSP AE\s0 does not provide hardware support for byte load/stores.
  .IP "\fB\-msymbol\-as\-address\fR" 4
--- 18835,18841 ----
  \&\fB\-mae=MUL\fR selects a \s-1MUL AE\s0 type.  This is the most useful \s-1AE\s0 type
  for compiled code, and is the default.
  .Sp
! \&\fB\-mae=MAC\fR selects a DSP-style \s-1MAC AE.\s0  Code compiled with this
  option may suffer from poor performance of byte (char) manipulation,
  since the \s-1DSP AE\s0 does not provide hardware support for byte load/stores.
  .IP "\fB\-msymbol\-as\-address\fR" 4
*************** Specifies the type of hardware multiplic
*** 18872,18880 ****
  be used.  The simplest is \f(CW\*(C`none\*(C'\fR, which uses software for both
  multiplication and division.  This is the default.  The \f(CW\*(C`g13\*(C'\fR
  value is for the hardware multiply/divide peripheral found on the
! \&\s-1RL78/G13 \s0(S2 core) targets.  The \f(CW\*(C`g14\*(C'\fR value selects the use of
! the multiplication and division instructions supported by the \s-1RL78/G14
! \&\s0(S3 core) parts.  The value \f(CW\*(C`rl78\*(C'\fR is an alias for \f(CW\*(C`g14\*(C'\fR and
  the value \f(CW\*(C`mg10\*(C'\fR is an alias for \f(CW\*(C`none\*(C'\fR.
  .Sp
  In addition a C preprocessor macro is defined, based upon the setting
--- 18885,18893 ----
  be used.  The simplest is \f(CW\*(C`none\*(C'\fR, which uses software for both
  multiplication and division.  This is the default.  The \f(CW\*(C`g13\*(C'\fR
  value is for the hardware multiply/divide peripheral found on the
! \&\s-1RL78/G13\s0 (S2 core) targets.  The \f(CW\*(C`g14\*(C'\fR value selects the use of
! the multiplication and division instructions supported by the \s-1RL78/G14\s0
! (S3 core) parts.  The value \f(CW\*(C`rl78\*(C'\fR is an alias for \f(CW\*(C`g14\*(C'\fR and
  the value \f(CW\*(C`mg10\*(C'\fR is an alias for \f(CW\*(C`none\*(C'\fR.
  .Sp
  In addition a C preprocessor macro is defined, based upon the setting
*************** of this option.  Possible values are: \f
*** 18891,18897 ****
  .IX Item "-mcpu=rl78"
  .PD
  Specifies the \s-1RL78\s0 core to target.  The default is the G14 core, also
! known as an S3 core or just \s-1RL78. \s0 The G13 or S2 core does not have
  multiply or divide instructions, instead it uses a hardware peripheral
  for these operations.  The G10 or S1 core does not have register
  banks, so it uses a different calling convention.
--- 18904,18910 ----
  .IX Item "-mcpu=rl78"
  .PD
  Specifies the \s-1RL78\s0 core to target.  The default is the G14 core, also
! known as an S3 core or just \s-1RL78.\s0  The G13 or S2 core does not have
  multiply or divide instructions, instead it uses a hardware peripheral
  for these operations.  The G10 or S1 core does not have register
  banks, so it uses a different calling convention.
*************** These \fB\-m\fR options are defined for
*** 18991,18997 ****
  .PD
  You use these options to specify which instructions are available on the
  processor you are using.  The default value of these options is
! determined when configuring \s-1GCC. \s0 Specifying the
  \&\fB\-mcpu=\fR\fIcpu_type\fR overrides the specification of these
  options.  We recommend you use the \fB\-mcpu=\fR\fIcpu_type\fR option
  rather than the options listed above.
--- 19004,19010 ----
  .PD
  You use these options to specify which instructions are available on the
  processor you are using.  The default value of these options is
! determined when configuring \s-1GCC.\s0  Specifying the
  \&\fB\-mcpu=\fR\fIcpu_type\fR overrides the specification of these
  options.  We recommend you use the \fB\-mcpu=\fR\fIcpu_type\fR option
  rather than the options listed above.
*************** This is a PowerPC
*** 19166,19172 ****
  32\-bit \s-1SYSV ABI\s0 option.
  .IP "\fB\-mbss\-plt\fR" 4
  .IX Item "-mbss-plt"
! Generate code that uses a \s-1BSS \s0\f(CW\*(C`.plt\*(C'\fR section that \fBld.so\fR
  fills in, and
  requires \f(CW\*(C`.plt\*(C'\fR and \f(CW\*(C`.got\*(C'\fR
  sections that are both writable and executable.
--- 19179,19185 ----
  32\-bit \s-1SYSV ABI\s0 option.
  .IP "\fB\-mbss\-plt\fR" 4
  .IX Item "-mbss-plt"
! Generate code that uses a \s-1BSS\s0 \f(CW\*(C`.plt\*(C'\fR section that \fBld.so\fR
  fills in, and
  requires \f(CW\*(C`.plt\*(C'\fR and \f(CW\*(C`.got\*(C'\fR
  sections that are both writable and executable.
*************** later processors.
*** 19259,19265 ****
  .IX Item "-mno-power8-vector"
  .PD
  Generate code that uses (does not use) the vector and scalar
! instructions that were added in version 2.07 of the PowerPC \s-1ISA. \s0 Also
  enable the use of built-in functions that allow more direct access to
  the vector instructions.
  .IP "\fB\-mquad\-memory\fR" 4
--- 19272,19278 ----
  .IX Item "-mno-power8-vector"
  .PD
  Generate code that uses (does not use) the vector and scalar
! instructions that were added in version 2.07 of the PowerPC \s-1ISA.\s0  Also
  enable the use of built-in functions that allow more direct access to
  the vector instructions.
  .IP "\fB\-mquad\-memory\fR" 4
*************** instructions.  The \fB\-mquad\-memory\-a
*** 19289,19295 ****
  Generate code that uses (does not use) the scalar double precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.06 of the
! PowerPC \s-1ISA.  \s0\fB\-mupper\-regs\-df\fR is turned on by default if you
  use any of the \fB\-mcpu=power7\fR, \fB\-mcpu=power8\fR, or
  \&\fB\-mvsx\fR options.
  .IP "\fB\-mupper\-regs\-sf\fR" 4
--- 19302,19308 ----
  Generate code that uses (does not use) the scalar double precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.06 of the
! PowerPC \s-1ISA.\s0  \fB\-mupper\-regs\-df\fR is turned on by default if you
  use any of the \fB\-mcpu=power7\fR, \fB\-mcpu=power8\fR, or
  \&\fB\-mvsx\fR options.
  .IP "\fB\-mupper\-regs\-sf\fR" 4
*************** use any of the \fB\-mcpu=power7\fR, \fB\
*** 19301,19307 ****
  Generate code that uses (does not use) the scalar single precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.07 of the
! PowerPC \s-1ISA.  \s0\fB\-mupper\-regs\-sf\fR is turned on by default if you
  use either of the \fB\-mcpu=power8\fR, \fB\-mpower8\-vector\fR, or
  \&\fB\-mcpu=power9\fR options.
  .IP "\fB\-mupper\-regs\fR" 4
--- 19314,19320 ----
  Generate code that uses (does not use) the scalar single precision
  instructions that target all 64 registers in the vector/scalar
  floating point register set that were added in version 2.07 of the
! PowerPC \s-1ISA.\s0  \fB\-mupper\-regs\-sf\fR is turned on by default if you
  use either of the \fB\-mcpu=power8\fR, \fB\-mpower8\-vector\fR, or
  \&\fB\-mcpu=power9\fR options.
  .IP "\fB\-mupper\-regs\fR" 4
*************** pointer to 64 bits, and generates code f
*** 19392,19402 ****
  .IP "\fB\-mminimal\-toc\fR" 4
  .IX Item "-mminimal-toc"
  .PD
! Modify generation of the \s-1TOC \s0(Table Of Contents), which is created for
  every executable file.  The \fB\-mfull\-toc\fR option is selected by
  default.  In that case, \s-1GCC\s0 allocates at least one \s-1TOC\s0 entry for
  each unique non-automatic variable reference in your program.  \s-1GCC\s0
! also places floating-point constants in the \s-1TOC. \s0 However, only
  16,384 entries are available in the \s-1TOC.\s0
  .Sp
  If you receive a linker error message that saying you have overflowed
--- 19405,19415 ----
  .IP "\fB\-mminimal\-toc\fR" 4
  .IX Item "-mminimal-toc"
  .PD
! Modify generation of the \s-1TOC\s0 (Table Of Contents), which is created for
  every executable file.  The \fB\-mfull\-toc\fR option is selected by
  default.  In that case, \s-1GCC\s0 allocates at least one \s-1TOC\s0 entry for
  each unique non-automatic variable reference in your program.  \s-1GCC\s0
! also places floating-point constants in the \s-1TOC.\s0  However, only
  16,384 entries are available in the \s-1TOC.\s0
  .Sp
  If you receive a linker error message that saying you have overflowed
*************** with the \fB\-mno\-fp\-in\-toc\fR and \f
*** 19405,19411 ****
  \&\fB\-mno\-fp\-in\-toc\fR prevents \s-1GCC\s0 from putting floating-point
  constants in the \s-1TOC\s0 and \fB\-mno\-sum\-in\-toc\fR forces \s-1GCC\s0 to
  generate code to calculate the sum of an address and a constant at
! run time instead of putting that sum into the \s-1TOC. \s0 You may specify one
  or both of these options.  Each causes \s-1GCC\s0 to produce very slightly
  slower and larger code at the expense of conserving \s-1TOC\s0 space.
  .Sp
--- 19418,19424 ----
  \&\fB\-mno\-fp\-in\-toc\fR prevents \s-1GCC\s0 from putting floating-point
  constants in the \s-1TOC\s0 and \fB\-mno\-sum\-in\-toc\fR forces \s-1GCC\s0 to
  generate code to calculate the sum of an address and a constant at
! run time instead of putting that sum into the \s-1TOC.\s0  You may specify one
  or both of these options.  Each causes \s-1GCC\s0 to produce very slightly
  slower and larger code at the expense of conserving \s-1TOC\s0 space.
  .Sp
*************** implies \fB\-mno\-powerpc64\fR.  \s-1GCC
*** 19433,19439 ****
  .IX Item "-mno-xl-compat"
  .PD
  Produce code that conforms more closely to \s-1IBM XL\s0 compiler semantics
! when using AIX-compatible \s-1ABI. \s0 Pass floating-point arguments to
  prototyped functions beyond the register save area (\s-1RSA\s0) on the stack
  in addition to argument FPRs.  Do not assume that most significant
  double in 128\-bit long double value is properly rounded when comparing
--- 19446,19452 ----
  .IX Item "-mno-xl-compat"
  .PD
  Produce code that conforms more closely to \s-1IBM XL\s0 compiler semantics
! when using AIX-compatible \s-1ABI.\s0  Pass floating-point arguments to
  prototyped functions beyond the register save area (\s-1RSA\s0) on the stack
  in addition to argument FPRs.  Do not assume that most significant
  double in 128\-bit long double value is properly rounded when comparing
*************** other \fB\-msdata\fR options are used.
*** 19914,19919 ****
--- 19927,19940 ----
  On embedded PowerPC systems, put all initialized global and static data
  in the \f(CW\*(C`.data\*(C'\fR section, and all uninitialized data in the
  \&\f(CW\*(C`.bss\*(C'\fR section.
+ .IP "\fB\-mreadonly\-in\-sdata\fR" 4
+ .IX Item "-mreadonly-in-sdata"
+ .PD 0
+ .IP "\fB\-mreadonly\-in\-sdata\fR" 4
+ .IX Item "-mreadonly-in-sdata"
+ .PD
+ Put read-only objects in the \f(CW\*(C`.sdata\*(C'\fR section as well.  This is the
+ default.
  .IP "\fB\-mblock\-move\-inline\-limit=\fR\fInum\fR" 4
  .IX Item "-mblock-move-inline-limit=num"
  Inline all block moves (such as calls to \f(CW\*(C`memcpy\*(C'\fR or structure
*************** On Darwin/PPC systems, \f(CW\*(C`#pragma
*** 19959,19965 ****
  callee, L42\*(C'\fR, plus a \fIbranch island\fR (glue code).  The two target
  addresses represent the callee and the branch island.  The
  Darwin/PPC linker prefers the first address and generates a \f(CW\*(C`bl
! callee\*(C'\fR if the \s-1PPC \s0\f(CW\*(C`bl\*(C'\fR instruction reaches the callee directly;
  otherwise, the linker generates \f(CW\*(C`bl L42\*(C'\fR to call the branch
  island.  The branch island is appended to the body of the
  calling function; it computes the full 32\-bit address of the callee
--- 19980,19986 ----
  callee, L42\*(C'\fR, plus a \fIbranch island\fR (glue code).  The two target
  addresses represent the callee and the branch island.  The
  Darwin/PPC linker prefers the first address and generates a \f(CW\*(C`bl
! callee\*(C'\fR if the \s-1PPC\s0 \f(CW\*(C`bl\*(C'\fR instruction reaches the callee directly;
  otherwise, the linker generates \f(CW\*(C`bl L42\*(C'\fR to call the branch
  island.  The branch island is appended to the body of the
  calling function; it computes the full 32\-bit address of the callee
*************** which handle the double-precision recipr
*** 20055,20061 ****
  .PD
  Assume (do not assume) that the reciprocal estimate instructions
  provide higher-precision estimates than is mandated by the PowerPC
! \&\s-1ABI. \s0 Selecting \fB\-mcpu=power6\fR, \fB\-mcpu=power7\fR or
  \&\fB\-mcpu=power8\fR automatically selects \fB\-mrecip\-precision\fR.
  The double-precision square root estimate instructions are not generated by
  default on low-precision machines, since they do not provide an
--- 20076,20082 ----
  .PD
  Assume (do not assume) that the reciprocal estimate instructions
  provide higher-precision estimates than is mandated by the PowerPC
! \&\s-1ABI.\s0  Selecting \fB\-mcpu=power6\fR, \fB\-mcpu=power7\fR or
  \&\fB\-mcpu=power8\fR automatically selects \fB\-mrecip\-precision\fR.
  The double-precision square root estimate instructions are not generated by
  default on low-precision machines, since they do not provide an
*************** Generate (do not generate) code to pass
*** 20130,20139 ****
  maximum alignment of 64 bits, for compatibility with older versions
  of \s-1GCC.\s0
  .Sp
! Older versions of \s-1GCC \s0(prior to 4.9.0) incorrectly did not align a
  structure parameter on a 128\-bit boundary when that structure contained
  a member requiring 128\-bit alignment.  This is corrected in more
! recent versions of \s-1GCC. \s0 This option may be used to generate code
  that is compatible with functions compiled with older versions of
  \&\s-1GCC.\s0
  .Sp
--- 20151,20160 ----
  maximum alignment of 64 bits, for compatibility with older versions
  of \s-1GCC.\s0
  .Sp
! Older versions of \s-1GCC\s0 (prior to 4.9.0) incorrectly did not align a
  structure parameter on a 128\-bit boundary when that structure contained
  a member requiring 128\-bit alignment.  This is corrected in more
! recent versions of \s-1GCC.\s0  This option may be used to generate code
  that is compatible with functions compiled with older versions of
  \&\s-1GCC.\s0
  .Sp
*************** This is because the \s-1RX FPU\s0 instru
*** 20175,20181 ****
  .IX Item "-mcpu=name"
  Selects the type of \s-1RX CPU\s0 to be targeted.  Currently three types are
  supported, the generic \fB\s-1RX600\s0\fR and \fB\s-1RX200\s0\fR series hardware and
! the specific \fB\s-1RX610\s0\fR \s-1CPU. \s0 The default is \fB\s-1RX600\s0\fR.
  .Sp
  The only difference between \fB\s-1RX600\s0\fR and \fB\s-1RX610\s0\fR is that the
  \&\fB\s-1RX610\s0\fR does not support the \f(CW\*(C`MVTIPL\*(C'\fR instruction.
--- 20196,20202 ----
  .IX Item "-mcpu=name"
  Selects the type of \s-1RX CPU\s0 to be targeted.  Currently three types are
  supported, the generic \fB\s-1RX600\s0\fR and \fB\s-1RX200\s0\fR series hardware and
! the specific \fB\s-1RX610\s0\fR \s-1CPU.\s0  The default is \fB\s-1RX600\s0\fR.
  .Sp
  The only difference between \fB\s-1RX600\s0\fR and \fB\s-1RX610\s0\fR is that the
  \&\fB\s-1RX610\s0\fR does not support the \f(CW\*(C`MVTIPL\*(C'\fR instruction.
*************** which does not have this limitation.
*** 20453,20460 ****
  .IX Item "-m31"
  .PD
  When \fB\-m31\fR is specified, generate code compliant to the
! GNU/Linux for S/390 \s-1ABI. \s0 When \fB\-m64\fR is specified, generate
! code compliant to the GNU/Linux for zSeries \s-1ABI. \s0 This allows \s-1GCC\s0 in
  particular to generate 64\-bit instructions.  For the \fBs390\fR
  targets, the default is \fB\-m31\fR, while the \fBs390x\fR
  targets default to \fB\-m64\fR.
--- 20474,20481 ----
  .IX Item "-m31"
  .PD
  When \fB\-m31\fR is specified, generate code compliant to the
! GNU/Linux for S/390 \s-1ABI.\s0  When \fB\-m64\fR is specified, generate
! code compliant to the GNU/Linux for zSeries \s-1ABI.\s0  This allows \s-1GCC\s0 in
  particular to generate 64\-bit instructions.  For the \fBs390\fR
  targets, the default is \fB\-m31\fR, while the \fBs390x\fR
  targets default to \fB\-m64\fR.
*************** targets default to \fB\-m64\fR.
*** 20467,20473 ****
  When \fB\-mzarch\fR is specified, generate code using the
  instructions available on z/Architecture.
  When \fB\-mesa\fR is specified, generate code using the
! instructions available on \s-1ESA/390. \s0 Note that \fB\-mesa\fR is
  not possible with \fB\-m64\fR.
  When generating code compliant to the GNU/Linux for S/390 \s-1ABI,\s0
  the default is \fB\-mesa\fR.  When generating code compliant
--- 20488,20494 ----
  When \fB\-mzarch\fR is specified, generate code using the
  instructions available on z/Architecture.
  When \fB\-mesa\fR is specified, generate code using the
! instructions available on \s-1ESA/390.\s0  Note that \fB\-mesa\fR is
  not possible with \fB\-m64\fR.
  When generating code compliant to the GNU/Linux for S/390 \s-1ABI,\s0
  the default is \fB\-mesa\fR.  When generating code compliant
*************** available with the vector extension faci
*** 20494,20500 ****
  z13 machine generation.
  This option changes the \s-1ABI\s0 for some vector type values with regard to
  alignment and calling conventions.  In case vector type values are
! being used in an ABI-relevant context a \s-1GAS \s0\fB.gnu_attribute\fR
  command will be added to mark the resulting binary with the \s-1ABI\s0 used.
  \&\fB\-mvx\fR is enabled by default when using \fB\-march=z13\fR.
  .IP "\fB\-mzvector\fR" 4
--- 20515,20521 ----
  z13 machine generation.
  This option changes the \s-1ABI\s0 for some vector type values with regard to
  alignment and calling conventions.  In case vector type values are
! being used in an ABI-relevant context a \s-1GAS\s0 \fB.gnu_attribute\fR
  command will be added to mark the resulting binary with the \s-1ABI\s0 used.
  \&\fB\-mvx\fR is enabled by default when using \fB\-march=z13\fR.
  .IP "\fB\-mzvector\fR" 4
*************** Generate code for \s-1SH4\-300\s0 in suc
*** 20738,20747 ****
  floating-point operations are used.
  .IP "\fB\-m4\-340\fR" 4
  .IX Item "-m4-340"
! Generate code for \s-1SH4\-340 \s0(no \s-1MMU,\s0 no \s-1FPU\s0).
  .IP "\fB\-m4\-500\fR" 4
  .IX Item "-m4-500"
! Generate code for \s-1SH4\-500 \s0(no \s-1FPU\s0).  Passes \fB\-isa=sh4\-nofpu\fR to the
  assembler.
  .IP "\fB\-m4a\-nofpu\fR" 4
  .IX Item "-m4a-nofpu"
--- 20759,20768 ----
  floating-point operations are used.
  .IP "\fB\-m4\-340\fR" 4
  .IX Item "-m4-340"
! Generate code for \s-1SH4\-340\s0 (no \s-1MMU,\s0 no \s-1FPU\s0).
  .IP "\fB\-m4\-500\fR" 4
  .IX Item "-m4-500"
! Generate code for \s-1SH4\-500\s0 (no \s-1FPU\s0).  Passes \fB\-isa=sh4\-nofpu\fR to the
  assembler.
  .IP "\fB\-m4a\-nofpu\fR" 4
  .IX Item "-m4a-nofpu"
*************** SH2A\s0 and SHcompact.
*** 20934,20947 ****
  .IX Item "call-fp"
  Calls a library function that performs the operation in double precision
  floating point.  Division by zero causes a floating-point exception.  This is
! the default for SHcompact with \s-1FPU. \s0 Specifying this for targets that do not
  have a double precision \s-1FPU\s0 defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .IP "\fBcall-table\fR" 4
  .IX Item "call-table"
  Calls a library function that uses a lookup table for small divisors and
  the \f(CW\*(C`div1\*(C'\fR instruction with case distinction for larger divisors.  Division
  by zero calculates an unspecified result and does not trap.  This is the default
! for \s-1SH4. \s0 Specifying this for targets that do not have dynamic shift
  instructions defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .RE
  .RS 4
--- 20955,20968 ----
  .IX Item "call-fp"
  Calls a library function that performs the operation in double precision
  floating point.  Division by zero causes a floating-point exception.  This is
! the default for SHcompact with \s-1FPU.\s0  Specifying this for targets that do not
  have a double precision \s-1FPU\s0 defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .IP "\fBcall-table\fR" 4
  .IX Item "call-table"
  Calls a library function that uses a lookup table for small divisors and
  the \f(CW\*(C`div1\*(C'\fR instruction with case distinction for larger divisors.  Division
  by zero calculates an unspecified result and does not trap.  This is the default
! for \s-1SH4.\s0  Specifying this for targets that do not have dynamic shift
  instructions defaults to \f(CW\*(C`call\-div1\*(C'\fR.
  .RE
  .RS 4
*************** is being compiled for.
*** 20985,20991 ****
  Assume (do not assume) that zero displacement conditional branch instructions
  \&\f(CW\*(C`bt\*(C'\fR and \f(CW\*(C`bf\*(C'\fR are fast.  If \fB\-mzdcbranch\fR is specified, the
  compiler prefers zero displacement branch code sequences.  This is
! enabled by default when generating code for \s-1SH4\s0 and \s-1SH4A. \s0 It can be explicitly
  disabled by specifying \fB\-mno\-zdcbranch\fR.
  .IP "\fB\-mcbranch\-force\-delay\-slot\fR" 4
  .IX Item "-mcbranch-force-delay-slot"
--- 21006,21012 ----
  Assume (do not assume) that zero displacement conditional branch instructions
  \&\f(CW\*(C`bt\*(C'\fR and \f(CW\*(C`bf\*(C'\fR are fast.  If \fB\-mzdcbranch\fR is specified, the
  compiler prefers zero displacement branch code sequences.  This is
! enabled by default when generating code for \s-1SH4\s0 and \s-1SH4A.\s0  It can be explicitly
  disabled by specifying \fB\-mno\-zdcbranch\fR.
  .IP "\fB\-mcbranch\-force\-delay\-slot\fR" 4
  .IX Item "-mcbranch-force-delay-slot"
*************** mapped to \fB\-ffp\-contract=off\fR.
*** 21014,21020 ****
  Allow or disallow the compiler to emit the \f(CW\*(C`fsca\*(C'\fR instruction for sine
  and cosine approximations.  The option \fB\-mfsca\fR must be used in
  combination with \fB\-funsafe\-math\-optimizations\fR.  It is enabled by default
! when generating code for \s-1SH4A. \s0 Using \fB\-mno\-fsca\fR disables sine and cosine
  approximations even if \fB\-funsafe\-math\-optimizations\fR is in effect.
  .IP "\fB\-mfsrra\fR" 4
  .IX Item "-mfsrra"
--- 21035,21041 ----
  Allow or disallow the compiler to emit the \f(CW\*(C`fsca\*(C'\fR instruction for sine
  and cosine approximations.  The option \fB\-mfsca\fR must be used in
  combination with \fB\-funsafe\-math\-optimizations\fR.  It is enabled by default
! when generating code for \s-1SH4A.\s0  Using \fB\-mno\-fsca\fR disables sine and cosine
  approximations even if \fB\-funsafe\-math\-optimizations\fR is in effect.
  .IP "\fB\-mfsrra\fR" 4
  .IX Item "-mfsrra"
*************** Allow or disallow the compiler to emit t
*** 21026,21032 ****
  reciprocal square root approximations.  The option \fB\-mfsrra\fR must be used
  in combination with \fB\-funsafe\-math\-optimizations\fR and
  \&\fB\-ffinite\-math\-only\fR.  It is enabled by default when generating code for
! \&\s-1SH4A. \s0 Using \fB\-mno\-fsrra\fR disables reciprocal square root approximations
  even if \fB\-funsafe\-math\-optimizations\fR and \fB\-ffinite\-math\-only\fR are
  in effect.
  .IP "\fB\-mpretend\-cmove\fR" 4
--- 21047,21053 ----
  reciprocal square root approximations.  The option \fB\-mfsrra\fR must be used
  in combination with \fB\-funsafe\-math\-optimizations\fR and
  \&\fB\-ffinite\-math\-only\fR.  It is enabled by default when generating code for
! \&\s-1SH4A.\s0  Using \fB\-mno\-fsrra\fR disables reciprocal square root approximations
  even if \fB\-funsafe\-math\-optimizations\fR and \fB\-ffinite\-math\-only\fR are
  in effect.
  .IP "\fB\-mpretend\-cmove\fR" 4
*************** instructions.
*** 21139,21145 ****
  .IX Item "-msoft-quad-float"
  Generate output containing library calls for quad-word (long double)
  floating-point instructions.  The functions called are those specified
! in the \s-1SPARC ABI. \s0 This is the default.
  .Sp
  As of this writing, there are no \s-1SPARC\s0 implementations that have hardware
  support for the quad-word floating-point instructions.  They all invoke
--- 21160,21166 ----
  .IX Item "-msoft-quad-float"
  Generate output containing library calls for quad-word (long double)
  floating-point instructions.  The functions called are those specified
! in the \s-1SPARC ABI.\s0  This is the default.
  .Sp
  As of this writing, there are no \s-1SPARC\s0 implementations that have hardware
  support for the quad-word floating-point instructions.  They all invoke
*************** should have 8\-byte alignment.  This ena
*** 21181,21187 ****
  \&\f(CW\*(C`ldd\*(C'\fR and \f(CW\*(C`std\*(C'\fR instructions for copies in structure
  assignment, in place of twice as many \f(CW\*(C`ld\*(C'\fR and \f(CW\*(C`st\*(C'\fR pairs.
  However, the use of this changed alignment directly violates the \s-1SPARC
! ABI. \s0 Thus, it's intended only for use on targets where the developer
  acknowledges that their resulting code is not directly in line with
  the rules of the \s-1ABI.\s0
  .IP "\fB\-mstd\-struct\-return\fR" 4
--- 21202,21208 ----
  \&\f(CW\*(C`ldd\*(C'\fR and \f(CW\*(C`std\*(C'\fR instructions for copies in structure
  assignment, in place of twice as many \f(CW\*(C`ld\*(C'\fR and \f(CW\*(C`st\*(C'\fR pairs.
  However, the use of this changed alignment directly violates the \s-1SPARC
! ABI.\s0  Thus, it's intended only for use on targets where the developer
  acknowledges that their resulting code is not directly in line with
  the rules of the \s-1ABI.\s0
  .IP "\fB\-mstd\-struct\-return\fR" 4
*************** SPARCStation 1, 2, \s-1IPX\s0 etc.
*** 21245,21251 ****
  With \fB\-mcpu=v8\fR, \s-1GCC\s0 generates code for the V8 variant of the \s-1SPARC\s0
  architecture.  The only difference from V7 code is that the compiler emits
  the integer multiply and integer divide instructions which exist in \s-1SPARC\-V8\s0
! but not in \s-1SPARC\-V7. \s0 With \fB\-mcpu=supersparc\fR, the compiler additionally
  optimizes it for the SuperSPARC chip, as used in the SPARCStation 10, 1000 and
  2000 series.
  .Sp
--- 21266,21272 ----
  With \fB\-mcpu=v8\fR, \s-1GCC\s0 generates code for the V8 variant of the \s-1SPARC\s0
  architecture.  The only difference from V7 code is that the compiler emits
  the integer multiply and integer divide instructions which exist in \s-1SPARC\-V8\s0
! but not in \s-1SPARC\-V7.\s0  With \fB\-mcpu=supersparc\fR, the compiler additionally
  optimizes it for the SuperSPARC chip, as used in the SPARCStation 10, 1000 and
  2000 series.
  .Sp
*************** With \fB\-mcpu=sparclite\fR, \s-1GCC\s0
*** 21253,21266 ****
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, integer divide step
  and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClite but not in \s-1SPARC\-V7.\s0
  With \fB\-mcpu=f930\fR, the compiler additionally optimizes it for the
! Fujitsu \s-1MB86930\s0 chip, which is the original SPARClite, with no \s-1FPU. \s0 With
  \&\fB\-mcpu=f934\fR, the compiler additionally optimizes it for the Fujitsu
  \&\s-1MB86934\s0 chip, which is the more recent SPARClite with \s-1FPU.\s0
  .Sp
  With \fB\-mcpu=sparclet\fR, \s-1GCC\s0 generates code for the SPARClet variant of
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, multiply/accumulate,
  integer divide step and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClet
! but not in \s-1SPARC\-V7. \s0 With \fB\-mcpu=tsc701\fR, the compiler additionally
  optimizes it for the \s-1TEMIC\s0 SPARClet chip.
  .Sp
  With \fB\-mcpu=v9\fR, \s-1GCC\s0 generates code for the V9 variant of the \s-1SPARC\s0
--- 21274,21287 ----
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, integer divide step
  and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClite but not in \s-1SPARC\-V7.\s0
  With \fB\-mcpu=f930\fR, the compiler additionally optimizes it for the
! Fujitsu \s-1MB86930\s0 chip, which is the original SPARClite, with no \s-1FPU.\s0  With
  \&\fB\-mcpu=f934\fR, the compiler additionally optimizes it for the Fujitsu
  \&\s-1MB86934\s0 chip, which is the more recent SPARClite with \s-1FPU.\s0
  .Sp
  With \fB\-mcpu=sparclet\fR, \s-1GCC\s0 generates code for the SPARClet variant of
  the \s-1SPARC\s0 architecture.  This adds the integer multiply, multiply/accumulate,
  integer divide step and scan (\f(CW\*(C`ffs\*(C'\fR) instructions which exist in SPARClet
! but not in \s-1SPARC\-V7.\s0  With \fB\-mcpu=tsc701\fR, the compiler additionally
  optimizes it for the \s-1TEMIC\s0 SPARClet chip.
  .Sp
  With \fB\-mcpu=v9\fR, \s-1GCC\s0 generates code for the V9 variant of the \s-1SPARC\s0
*************** GNU/Linux toolchains, \fBnative\fR can a
*** 21300,21306 ****
  .IP "\fB\-mno\-v8plus\fR" 4
  .IX Item "-mno-v8plus"
  .PD
! With \fB\-mv8plus\fR, \s-1GCC\s0 generates code for the \s-1SPARC\-V8+ ABI. \s0 The
  difference from the V8 \s-1ABI\s0 is that the global and out registers are
  considered 64 bits wide.  This is enabled by default on Solaris in 32\-bit
  mode for all \s-1SPARC\-V9\s0 processors.
--- 21321,21327 ----
  .IP "\fB\-mno\-v8plus\fR" 4
  .IX Item "-mno-v8plus"
  .PD
! With \fB\-mv8plus\fR, \s-1GCC\s0 generates code for the \s-1SPARC\-V8+ ABI.\s0  The
  difference from the V8 \s-1ABI\s0 is that the global and out registers are
  considered 64 bits wide.  This is enabled by default on Solaris in 32\-bit
  mode for all \s-1SPARC\-V9\s0 processors.
*************** selected because its use is still experi
*** 21808,21814 ****
  .IP "\fB\-mghs\fR" 4
  .IX Item "-mghs"
  .PD
! Enables support for the \s-1RH850\s0 version of the V850 \s-1ABI. \s0 This is the
  default.  With this version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
--- 21829,21835 ----
  .IP "\fB\-mghs\fR" 4
  .IX Item "-mghs"
  .PD
! Enables support for the \s-1RH850\s0 version of the V850 \s-1ABI.\s0  This is the
  default.  With this version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
*************** When this version of the \s-1ABI\s0 is e
*** 21833,21839 ****
  .RE
  .IP "\fB\-mgcc\-abi\fR" 4
  .IX Item "-mgcc-abi"
! Enables support for the old \s-1GCC\s0 version of the V850 \s-1ABI. \s0 With this
  version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
--- 21854,21860 ----
  .RE
  .IP "\fB\-mgcc\-abi\fR" 4
  .IX Item "-mgcc-abi"
! Enables support for the old \s-1GCC\s0 version of the V850 \s-1ABI.\s0  With this
  version of the \s-1ABI\s0 the following rules apply:
  .RS 4
  .IP "*" 4
*************** of the selected instruction set.
*** 22043,22049 ****
  Original Intel i386 \s-1CPU.\s0
  .IP "\fBi486\fR" 4
  .IX Item "i486"
! Intel i486 \s-1CPU.  \s0(No scheduling is implemented for this chip.)
  .IP "\fBi586\fR" 4
  .IX Item "i586"
  .PD 0
--- 22064,22070 ----
  Original Intel i386 \s-1CPU.\s0
  .IP "\fBi486\fR" 4
  .IX Item "i486"
! Intel i486 \s-1CPU.\s0  (No scheduling is implemented for this chip.)
  .IP "\fBi586\fR" 4
  .IX Item "i586"
  .PD 0
*************** extensions.)
*** 22227,22241 ****
  .IP "\fBbdver3\fR" 4
  .IX Item "bdver3"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, XOP, LWP, AES, 
! PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM\s0 and 
  64\-bit instruction set extensions.
  .IP "\fBbdver4\fR" 4
  .IX Item "bdver4"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, BMI2, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, AVX2, XOP, LWP, 
! AES, PCL_MUL, CX16, MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, 
! SSE4.2, ABM\s0 and 64\-bit instruction set extensions.
  .IP "\fBznver1\fR" 4
  .IX Item "znver1"
  \&\s-1AMD\s0 Family 17h core based CPUs with x86\-64 instruction set support.  (This
--- 22248,22262 ----
  .IP "\fBbdver3\fR" 4
  .IX Item "bdver3"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, XOP, LWP, AES,\s0 
! \&\s-1PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM\s0 and 
  64\-bit instruction set extensions.
  .IP "\fBbdver4\fR" 4
  .IX Item "bdver4"
  \&\s-1AMD\s0 Family 15h core based CPUs with x86\-64 instruction set support.  (This
! supersets \s-1BMI, BMI2, TBM, F16C, FMA, FMA4, FSGSBASE, AVX, AVX2, XOP, LWP,\s0 
! \&\s-1AES, PCL_MUL, CX16, MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1,\s0 
! \&\s-1SSE4.2, ABM\s0 and 64\-bit instruction set extensions.
  .IP "\fBznver1\fR" 4
  .IX Item "znver1"
  \&\s-1AMD\s0 Family 17h core based CPUs with x86\-64 instruction set support.  (This
*************** instruction set support.
*** 22267,22273 ****
  implemented for this chip.)
  .IP "\fBc3\-2\fR" 4
  .IX Item "c3-2"
! \&\s-1VIA C3\-2 \s0(Nehemiah/C5XL) \s-1CPU\s0 with \s-1MMX\s0 and \s-1SSE\s0 instruction set support.
  (No scheduling is
  implemented for this chip.)
  .IP "\fBgeode\fR" 4
--- 22288,22294 ----
  implemented for this chip.)
  .IP "\fBc3\-2\fR" 4
  .IX Item "c3-2"
! \&\s-1VIA C3\-2\s0 (Nehemiah/C5XL) \s-1CPU\s0 with \s-1MMX\s0 and \s-1SSE\s0 instruction set support.
  (No scheduling is
  implemented for this chip.)
  .IP "\fBgeode\fR" 4
*************** processors) for which the code is optimi
*** 22313,22319 ****
  .IP "\fBintel\fR" 4
  .IX Item "intel"
  Produce code optimized for the most current Intel processors, which are
! Haswell and Silvermont for this version of \s-1GCC. \s0 If you know the \s-1CPU\s0
  on which your code will run, then you should use the corresponding
  \&\fB\-mtune\fR or \fB\-march\fR option instead of \fB\-mtune=intel\fR.
  But, if you want your application performs better on both Haswell and
--- 22334,22340 ----
  .IP "\fBintel\fR" 4
  .IX Item "intel"
  Produce code optimized for the most current Intel processors, which are
! Haswell and Silvermont for this version of \s-1GCC.\s0  If you know the \s-1CPU\s0
  on which your code will run, then you should use the corresponding
  \&\fB\-mtune\fR or \fB\-march\fR option instead of \fB\-mtune=intel\fR.
  But, if you want your application performs better on both Haswell and
*************** Do not use the \s-1FPU\s0 registers for
*** 22421,22427 ****
  .Sp
  The usual calling convention has functions return values of types
  \&\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR in an \s-1FPU\s0 register, even if there
! is no \s-1FPU. \s0 The idea is that the operating system should emulate
  an \s-1FPU.\s0
  .Sp
  The option \fB\-mno\-fp\-ret\-in\-387\fR causes such values to be returned
--- 22442,22448 ----
  .Sp
  The usual calling convention has functions return values of types
  \&\f(CW\*(C`float\*(C'\fR and \f(CW\*(C`double\*(C'\fR in an \s-1FPU\s0 register, even if there
! is no \s-1FPU.\s0  The idea is that the operating system should emulate
  an \s-1FPU.\s0
  .Sp
  The option \fB\-mno\-fp\-ret\-in\-387\fR causes such values to be returned
*************** preferred alignment to \fB\-mpreferred\-
*** 22693,22700 ****
  .IX Item "-maes"
  .IP "\fB\-mpclmul\fR" 4
  .IX Item "-mpclmul"
! .IP "\fB\-mclfushopt\fR" 4
! .IX Item "-mclfushopt"
  .IP "\fB\-mfsgsbase\fR" 4
  .IX Item "-mfsgsbase"
  .IP "\fB\-mrdrnd\fR" 4
--- 22714,22721 ----
  .IX Item "-maes"
  .IP "\fB\-mpclmul\fR" 4
  .IX Item "-mpclmul"
! .IP "\fB\-mclflushopt\fR" 4
! .IX Item "-mclflushopt"
  .IP "\fB\-mfsgsbase\fR" 4
  .IX Item "-mfsgsbase"
  .IP "\fB\-mrdrnd\fR" 4
*************** external library.  Supported values for
*** 22903,22909 ****
  for the Intel short
  vector math library and \fBacml\fR for the \s-1AMD\s0 math core library.
  To use this option, both \fB\-ftree\-vectorize\fR and
! \&\fB\-funsafe\-math\-optimizations\fR have to be enabled, and an \s-1SVML\s0 or \s-1ACML \s0
  ABI-compatible library must be specified at link time.
  .Sp
  \&\s-1GCC\s0 currently emits calls to \f(CW\*(C`vmldExp2\*(C'\fR,
--- 22924,22930 ----
  for the Intel short
  vector math library and \fBacml\fR for the \s-1AMD\s0 math core library.
  To use this option, both \fB\-ftree\-vectorize\fR and
! \&\fB\-funsafe\-math\-optimizations\fR have to be enabled, and an \s-1SVML\s0 or \s-1ACML\s0 
  ABI-compatible library must be specified at link time.
  .Sp
  \&\s-1GCC\s0 currently emits calls to \f(CW\*(C`vmldExp2\*(C'\fR,
*************** when \fB\-mveclibabi=acml\fR is used.
*** 22926,22932 ****
  .IX Item "-mabi=name"
  Generate code for the specified calling convention.  Permissible values
  are \fBsysv\fR for the \s-1ABI\s0 used on GNU/Linux and other systems, and
! \&\fBms\fR for the Microsoft \s-1ABI. \s0 The default is to use the Microsoft
  \&\s-1ABI\s0 when targeting Microsoft Windows and the SysV \s-1ABI\s0 on all other systems.
  You can control this behavior for specific functions by
  using the function attributes \f(CW\*(C`ms_abi\*(C'\fR and \f(CW\*(C`sysv_abi\*(C'\fR.
--- 22947,22953 ----
  .IX Item "-mabi=name"
  Generate code for the specified calling convention.  Permissible values
  are \fBsysv\fR for the \s-1ABI\s0 used on GNU/Linux and other systems, and
! \&\fBms\fR for the Microsoft \s-1ABI.\s0  The default is to use the Microsoft
  \&\s-1ABI\s0 when targeting Microsoft Windows and the SysV \s-1ABI\s0 on all other systems.
  You can control this behavior for specific functions by
  using the function attributes \f(CW\*(C`ms_abi\*(C'\fR and \f(CW\*(C`sysv_abi\*(C'\fR.
*************** Try to avoid generating code sequences t
*** 23259,23264 ****
--- 23280,23317 ----
  opcodes, to mitigate against certain forms of attack. At the moment,
  this option is limited in what it can do and should not be relied
  on to provide serious protection.
+ .IP "\fB\-mindirect\-branch=\fR\fIchoice\fR" 4
+ .IX Item "-mindirect-branch=choice"
+ Convert indirect call and jump with \fIchoice\fR.  The default is
+ \&\fBkeep\fR, which keeps indirect call and jump unmodified.
+ \&\fBthunk\fR converts indirect call and jump to call and return thunk.
+ \&\fBthunk-inline\fR converts indirect call and jump to inlined call
+ and return thunk.  \fBthunk-extern\fR converts indirect call and jump
+ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute \f(CW\*(C`indirect_branch\*(C'\fR.
+ .Sp
+ Note that \fB\-mcmodel=large\fR is incompatible with
+ \&\fB\-mindirect\-branch=thunk\fR nor
+ \&\fB\-mindirect\-branch=thunk\-extern\fR since the thunk function may
+ not be reachable in large code model.
+ .IP "\fB\-mfunction\-return=\fR\fIchoice\fR" 4
+ .IX Item "-mfunction-return=choice"
+ Convert function return with \fIchoice\fR.  The default is \fBkeep\fR,
+ which keeps function return unmodified.  \fBthunk\fR converts function
+ return to call and return thunk.  \fBthunk-inline\fR converts function
+ return to inlined call and return thunk.  \fBthunk-extern\fR converts
+ function return to external call and return thunk provided in a separate
+ object file.  You can control this behavior for a specific function by
+ using the function attribute \f(CW\*(C`function_return\*(C'\fR.
+ .Sp
+ Note that \fB\-mcmodel=large\fR is incompatible with
+ \&\fB\-mfunction\-return=thunk\fR nor
+ \&\fB\-mfunction\-return=thunk\-extern\fR since the thunk function may
+ not be reachable in large code model.
+ .IP "\fB\-mindirect\-branch\-register\fR" 4
+ .IX Item "-mindirect-branch-register"
+ Force indirect call and jump via register.
  .PP
  These \fB\-m\fR switches are supported in addition to the above
  on x86\-64 processors in 64\-bit environments.
diff -Nrcpad gcc-6.4.0/gcc/doc/gcc.info gcc-6.5.0/gcc/doc/gcc.info
*** gcc-6.4.0/gcc/doc/gcc.info	Tue Jul  4 09:27:45 2017
--- gcc-6.5.0/gcc/doc/gcc.info	Fri Oct 26 10:07:34 2018
***************
*** 1,5 ****
! This is doc/gcc.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/doc/gcc.texi.
  
  Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
--- 1,4 ----
! This is gcc.info, produced by makeinfo version 6.4 from gcc.texi.
  
  Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
*************** Free Documentation License".
*** 17,34 ****
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * gcc: (gcc).                  The GNU Compiler Collection.
  * g++: (gcc).                  The GNU C++ compiler.
! * gcov: (gcc) Gcov.            `gcov'--a test coverage program.
! * gcov-tool: (gcc) Gcov-tool.  `gcov-tool'--an offline gcda profile processing program.
! * gcov-dump: (gcc) Gcov-dump.  `gcov-dump'--an offline gcda and gcno profile dump tool.
  END-INFO-DIR-ENTRY
   This file documents the use of the GNU compilers.
  
   Copyright (C) 1988-2017 Free Software Foundation, Inc.
--- 16,33 ----
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU software.
! Copies published by the Free Software Foundation raise funds for GNU
! development.
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * gcc: (gcc).                  The GNU Compiler Collection.
  * g++: (gcc).                  The GNU C++ compiler.
! * gcov: (gcc) Gcov.            'gcov'--a test coverage program.
! * gcov-tool: (gcc) Gcov-tool.  'gcov-tool'--an offline gcda profile processing program.
! * gcov-dump: (gcc) Gcov-dump.  'gcov-dump'--an offline gcda and gcno profile dump tool.
  END-INFO-DIR-ENTRY
+ 
   This file documents the use of the GNU compilers.
  
   Copyright (C) 1988-2017 Free Software Foundation, Inc.
*************** Free Documentation License".
*** 47,56 ****
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  
  
  File: gcc.info,  Node: Top,  Next: G++ and GCC,  Up: (DIR)
--- 46,54 ----
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU software.
! Copies published by the Free Software Foundation raise funds for GNU
! development.
  
  
  File: gcc.info,  Node: Top,  Next: G++ and GCC,  Up: (DIR)
*************** Introduction
*** 60,66 ****
  
  This manual documents how to use the GNU compilers, as well as their
  features and incompatibilities, and how to report bugs.  It corresponds
! to the compilers (GCC) version 6.4.0.  The internals of the GNU
  compilers, including how to port them to new targets and some
  information about how to write front ends for new languages, are
  documented in a separate manual.  *Note Introduction: (gccint)Top.
--- 58,64 ----
  
  This manual documents how to use the GNU compilers, as well as their
  features and incompatibilities, and how to report bugs.  It corresponds
! to the compilers (GCC) version 6.5.0.  The internals of the GNU
  compilers, including how to port them to new targets and some
  information about how to write front ends for new languages, are
  documented in a separate manual.  *Note Introduction: (gccint)Top.
*************** documented in a separate manual.  *Note
*** 69,84 ****
  
  * G++ and GCC::     You can compile C or C++ programs.
  * Standards::       Language standards supported by GCC.
! * Invoking GCC::    Command options supported by `gcc'.
  * C Implementation:: How GCC implements the ISO C specification.
  * C++ Implementation:: How GCC implements the ISO C++ specification.
  * C Extensions::    GNU extensions to the C language family.
  * C++ Extensions::  GNU extensions to the C++ language.
  * Objective-C::     GNU Objective-C runtime features.
  * Compatibility::   Binary Compatibility
! * Gcov::            `gcov'---a test coverage program.
! * Gcov-tool::       `gcov-tool'---an offline gcda profile processing program.
! * Gcov-dump::       `gcov-dump'---an offline gcda and gcno profile dump tool.
  * Trouble::         If you have trouble using GCC.
  * Bugs::            How, why and where to report bugs.
  * Service::         How To Get Help with GCC
--- 67,82 ----
  
  * G++ and GCC::     You can compile C or C++ programs.
  * Standards::       Language standards supported by GCC.
! * Invoking GCC::    Command options supported by 'gcc'.
  * C Implementation:: How GCC implements the ISO C specification.
  * C++ Implementation:: How GCC implements the ISO C++ specification.
  * C Extensions::    GNU extensions to the C language family.
  * C++ Extensions::  GNU extensions to the C++ language.
  * Objective-C::     GNU Objective-C runtime features.
  * Compatibility::   Binary Compatibility
! * Gcov::            'gcov'--a test coverage program.
! * Gcov-tool::       'gcov-tool'--an offline gcda profile processing program.
! * Gcov-dump::       'gcov-dump'--an offline gcda and gcno profile dump tool.
  * Trouble::         If you have trouble using GCC.
  * Bugs::            How, why and where to report bugs.
  * Service::         How To Get Help with GCC
*************** documented in a separate manual.  *Note
*** 96,102 ****
  * Keyword Index::   Index of concepts and symbol names.
  
  
! File: gcc.info,  Node: G++ and GCC,  Next: Standards,  Prev: Top,  Up: Top
  
  1 Programming Languages Supported by GCC
  ****************************************
--- 94,100 ----
  * Keyword Index::   Index of concepts and symbol names.
  
  
! File: gcc.info,  Node: G++ and GCC,  Next: Standards,  Up: Top
  
  1 Programming Languages Supported by GCC
  ****************************************
*************** were renumbered and became clauses in th
*** 159,167 ****
  standard, but not the ISO standard, also came with a Rationale document.
  This standard, in both its forms, is commonly known as "C89", or
  occasionally as "C90", from the dates of ratification.  To select this
! standard in GCC, use one of the options `-ansi', `-std=c90' or
! `-std=iso9899:1990'; to obtain all the diagnostics required by the
! standard, you should also specify `-pedantic' (or `-pedantic-errors' if
  you want them to be errors rather than warnings).  *Note Options
  Controlling C Dialect: C Dialect Options.
  
--- 157,165 ----
  standard, but not the ISO standard, also came with a Rationale document.
  This standard, in both its forms, is commonly known as "C89", or
  occasionally as "C90", from the dates of ratification.  To select this
! standard in GCC, use one of the options '-ansi', '-std=c90' or
! '-std=iso9899:1990'; to obtain all the diagnostics required by the
! standard, you should also specify '-pedantic' (or '-pedantic-errors' if
  you want them to be errors rather than warnings).  *Note Options
  Controlling C Dialect: C Dialect Options.
  
*************** Corrigenda published in 1994 and 1996.
*** 170,188 ****
  uncorrected version.
  
   An amendment to the 1990 standard was published in 1995.  This
! amendment added digraphs and `__STDC_VERSION__' to the language, but
  otherwise concerned the library.  This amendment is commonly known as
  "AMD1"; the amended standard is sometimes known as "C94" or "C95".  To
! select this standard in GCC, use the option `-std=iso9899:199409'
! (with, as for other standard versions, `-pedantic' to receive all
! required diagnostics).
  
   A new edition of the ISO C standard was published in 1999 as ISO/IEC
  9899:1999, and is commonly known as "C99".  (While in development,
! drafts of this standard version were referred to as "C9X".)  GCC has
  substantially complete support for this standard version; see
! `http://gcc.gnu.org/c99status.html' for details.  To select this
! standard, use `-std=c99' or `-std=iso9899:1999'.
  
   Errors in the 1999 ISO C standard were corrected in three Technical
  Corrigenda published in 2001, 2004 and 2007.  GCC does not support the
--- 168,186 ----
  uncorrected version.
  
   An amendment to the 1990 standard was published in 1995.  This
! amendment added digraphs and '__STDC_VERSION__' to the language, but
  otherwise concerned the library.  This amendment is commonly known as
  "AMD1"; the amended standard is sometimes known as "C94" or "C95".  To
! select this standard in GCC, use the option '-std=iso9899:199409' (with,
! as for other standard versions, '-pedantic' to receive all required
! diagnostics).
  
   A new edition of the ISO C standard was published in 1999 as ISO/IEC
  9899:1999, and is commonly known as "C99".  (While in development,
! drafts of this standard version were referred to as "C9X".) GCC has
  substantially complete support for this standard version; see
! <http://gcc.gnu.org/c99status.html> for details.  To select this
! standard, use '-std=c99' or '-std=iso9899:1999'.
  
   Errors in the 1999 ISO C standard were corrected in three Technical
  Corrigenda published in 2001, 2004 and 2007.  GCC does not support the
*************** uncorrected version.
*** 190,222 ****
  
   A fourth version of the C standard, known as "C11", was published in
  2011 as ISO/IEC 9899:2011.  (While in development, drafts of this
! standard version were referred to as "C1X".)  GCC has substantially
! complete support for this standard, enabled with `-std=c11' or
! `-std=iso9899:2011'.
  
   By default, GCC provides some extensions to the C language that, on
  rare occasions conflict with the C standard.  *Note Extensions to the C
  Language Family: C Extensions.  Some features that are part of the C99
  standard are accepted as extensions in C90 mode, and some features that
  are part of the C11 standard are accepted as extensions in C90 and C99
! modes.  Use of the `-std' options listed above disables these
! extensions where they conflict with the C standard version selected.
! You may also select an extended version of the C language explicitly
! with `-std=gnu90' (for C90 with GNU extensions), `-std=gnu99' (for C99
! with GNU extensions) or `-std=gnu11' (for C11 with GNU extensions).
  
   The default, if no C language dialect options are given, is
! `-std=gnu11'.
  
   The ISO C standard defines (in clause 4) two classes of conforming
! implementation.  A "conforming hosted implementation" supports the
! whole standard including all the library facilities; a "conforming
! freestanding implementation" is only required to provide certain
! library facilities: those in `<float.h>', `<limits.h>', `<stdarg.h>',
! and `<stddef.h>'; since AMD1, also those in `<iso646.h>'; since C99,
! also those in `<stdbool.h>' and `<stdint.h>'; and since C11, also those
! in `<stdalign.h>' and `<stdnoreturn.h>'.  In addition, complex types,
! added in C99, are not required for freestanding implementations.
  
   The standard also defines two environments for programs, a
  "freestanding environment", required of all implementations and which
--- 188,220 ----
  
   A fourth version of the C standard, known as "C11", was published in
  2011 as ISO/IEC 9899:2011.  (While in development, drafts of this
! standard version were referred to as "C1X".) GCC has substantially
! complete support for this standard, enabled with '-std=c11' or
! '-std=iso9899:2011'.
  
   By default, GCC provides some extensions to the C language that, on
  rare occasions conflict with the C standard.  *Note Extensions to the C
  Language Family: C Extensions.  Some features that are part of the C99
  standard are accepted as extensions in C90 mode, and some features that
  are part of the C11 standard are accepted as extensions in C90 and C99
! modes.  Use of the '-std' options listed above disables these extensions
! where they conflict with the C standard version selected.  You may also
! select an extended version of the C language explicitly with
! '-std=gnu90' (for C90 with GNU extensions), '-std=gnu99' (for C99 with
! GNU extensions) or '-std=gnu11' (for C11 with GNU extensions).
  
   The default, if no C language dialect options are given, is
! '-std=gnu11'.
  
   The ISO C standard defines (in clause 4) two classes of conforming
! implementation.  A "conforming hosted implementation" supports the whole
! standard including all the library facilities; a "conforming
! freestanding implementation" is only required to provide certain library
! facilities: those in '<float.h>', '<limits.h>', '<stdarg.h>', and
! '<stddef.h>'; since AMD1, also those in '<iso646.h>'; since C99, also
! those in '<stdbool.h>' and '<stdint.h>'; and since C11, also those in
! '<stdalign.h>' and '<stdnoreturn.h>'.  In addition, complex types, added
! in C99, are not required for freestanding implementations.
  
   The standard also defines two environments for programs, a
  "freestanding environment", required of all implementations and which
*************** may not have library facilities beyond t
*** 224,242 ****
  implementations, where the handling of program startup and termination
  are implementation-defined; and a "hosted environment", which is not
  required, in which all the library facilities are provided and startup
! is through a function `int main (void)' or `int main (int, char *[])'.
  An OS kernel is an example of a program running in a freestanding
! environment; a program using the facilities of an operating system is
! an example of a program running in a hosted environment.
  
   GCC aims towards being usable as a conforming freestanding
  implementation, or as the compiler for a conforming hosted
  implementation.  By default, it acts as the compiler for a hosted
! implementation, defining `__STDC_HOSTED__' as `1' and presuming that
  when the names of ISO C functions are used, they have the semantics
  defined in the standard.  To make it act as a conforming freestanding
  implementation for a freestanding environment, use the option
! `-ffreestanding'; it then defines `__STDC_HOSTED__' to `0' and does not
  make assumptions about the meanings of function names from the standard
  library, with exceptions noted below.  To build an OS kernel, you may
  well still need to make your own arrangements for linking and startup.
--- 222,240 ----
  implementations, where the handling of program startup and termination
  are implementation-defined; and a "hosted environment", which is not
  required, in which all the library facilities are provided and startup
! is through a function 'int main (void)' or 'int main (int, char *[])'.
  An OS kernel is an example of a program running in a freestanding
! environment; a program using the facilities of an operating system is an
! example of a program running in a hosted environment.
  
   GCC aims towards being usable as a conforming freestanding
  implementation, or as the compiler for a conforming hosted
  implementation.  By default, it acts as the compiler for a hosted
! implementation, defining '__STDC_HOSTED__' as '1' and presuming that
  when the names of ISO C functions are used, they have the semantics
  defined in the standard.  To make it act as a conforming freestanding
  implementation for a freestanding environment, use the option
! '-ffreestanding'; it then defines '__STDC_HOSTED__' to '0' and does not
  make assumptions about the meanings of function names from the standard
  library, with exceptions noted below.  To build an OS kernel, you may
  well still need to make your own arrangements for linking and startup.
*************** well still need to make your own arrange
*** 244,262 ****
  
   GCC does not provide the library facilities required only of hosted
  implementations, nor yet all the facilities required by C99 of
! freestanding implementations on all platforms.  To use the facilities
! of a hosted environment, you need to find them elsewhere (for example,
! in the GNU C library).  *Note Standard Libraries: Standard Libraries.
  
   Most of the compiler support routines used by GCC are present in
! `libgcc', but there are a few exceptions.  GCC requires the
! freestanding environment provide `memcpy', `memmove', `memset' and
! `memcmp'.  Finally, if `__builtin_trap' is used, and the target does
! not implement the `trap' pattern, then GCC emits a call to `abort'.
  
   For references to Technical Corrigenda, Rationale documents and
  information concerning the history of C that is available online, see
! `http://gcc.gnu.org/readings.html'
  
  2.2 C++ Language
  ================
--- 242,260 ----
  
   GCC does not provide the library facilities required only of hosted
  implementations, nor yet all the facilities required by C99 of
! freestanding implementations on all platforms.  To use the facilities of
! a hosted environment, you need to find them elsewhere (for example, in
! the GNU C library).  *Note Standard Libraries: Standard Libraries.
  
   Most of the compiler support routines used by GCC are present in
! 'libgcc', but there are a few exceptions.  GCC requires the freestanding
! environment provide 'memcpy', 'memmove', 'memset' and 'memcmp'.
! Finally, if '__builtin_trap' is used, and the target does not implement
! the 'trap' pattern, then GCC emits a call to 'abort'.
  
   For references to Technical Corrigenda, Rationale documents and
  information concerning the history of C that is available online, see
! <http://gcc.gnu.org/readings.html>
  
  2.2 C++ Language
  ================
*************** GCC supports the original ISO C++ standa
*** 266,383 ****
  
   The original ISO C++ standard was published as the ISO standard
  (ISO/IEC 14882:1998) and amended by a Technical Corrigenda published in
! 2003 (ISO/IEC 14882:2003). These standards are referred to as C++98 and
! C++03, respectively. GCC implements the majority of C++98 (`export' is
  a notable exception) and most of the changes in C++03.  To select this
! standard in GCC, use one of the options `-ansi', `-std=c++98', or
! `-std=c++03'; to obtain all the diagnostics required by the standard,
! you should also specify `-pedantic' (or `-pedantic-errors' if you want
  them to be errors rather than warnings).
  
!  A revised ISO C++ standard was published in 2011 as ISO/IEC
! 14882:2011, and is referred to as C++11; before its publication it was
! commonly referred to as C++0x.  C++11 contains several changes to the
! C++ language, all of which have been implemented in GCC. For details
! see `https://gcc.gnu.org/projects/cxx0x.html'.  To select this standard
! in GCC, use the option `-std=c++11'.
  
   Another revised ISO C++ standard was published in 2014 as ISO/IEC
  14882:2014, and is referred to as C++14; before its publication it was
  sometimes referred to as C++1y.  C++14 contains several further changes
  to the C++ language, all of which have been implemented in GCC.  For
! details see `https://gcc.gnu.org/projects/cxx1y.html'.  To select this
! standard in GCC, use the option `-std=c++14'.
  
   GCC also supports the C++ Concepts Technical Specification, ISO/IEC TS
  19217:2015, which allows constraints to be defined for templates,
  allowing template arguments to be checked and for templates to be
! overloaded or specialized based on the constraints. Support for C++
  Concepts is included in an experimental C++1z mode that corresponds to
  the next revision of the ISO C++ standard, expected to be published in
! 2017. To enable C++1z support in GCC, use the option `-std=c++17' or
! `-std=c++1z'.
  
   More information about the C++ standards is available on the ISO C++
! committee's web site at `http://www.open-std.org/jtc1/sc22/wg21/'.
  
   To obtain all the diagnostics required by any of the standard versions
! described above you should specify `-pedantic' or `-pedantic-errors',
! otherwise GCC will allow some non-ISO C++ features as extensions. *Note
  Warning Options::.
  
   By default, GCC also provides some additional extensions to the C++
  language that on rare occasions conflict with the C++ standard.  *Note
! Options Controlling C++ Dialect: C++ Dialect Options.  Use of the
! `-std' options listed above disables these extensions where they they
! conflict with the C++ standard version selected.  You may also select
! an extended version of the C++ language explicitly with `-std=gnu++98'
! (for C++98 with GNU extensions), or `-std=gnu++11' (for C++11 with GNU
! extensions), or `-std=gnu++14' (for C++14 with GNU extensions), or
! `-std=gnu++1z' (for C++1z with GNU extensions).
  
   The default, if no C++ language dialect options are given, is
! `-std=gnu++14'.
  
  2.3 Objective-C and Objective-C++ Languages
  ===========================================
  
! GCC supports "traditional" Objective-C (also known as "Objective-C
! 1.0") and contains support for the Objective-C exception and
! synchronization syntax.  It has also support for a number of
! "Objective-C 2.0" language extensions, including properties, fast
! enumeration (only for Objective-C), method attributes and the @optional
! and @required keywords in protocols.  GCC supports Objective-C++ and
! features available in Objective-C are also available in Objective-C++.
  
   GCC by default uses the GNU Objective-C runtime library, which is part
! of GCC and is not the same as the Apple/NeXT Objective-C runtime
! library used on Apple systems.  There are a number of differences
! documented in this manual.  The options `-fgnu-runtime' and
! `-fnext-runtime' allow you to switch between producing output that
! works with the GNU Objective-C runtime library and output that works
! with the Apple/NeXT Objective-C runtime library.
  
   There is no formal written standard for Objective-C or Objective-C++.
  The authoritative manual on traditional Objective-C (1.0) is
  "Object-Oriented Programming and the Objective-C Language":
!    * `http://www.gnustep.org/resources/documentation/ObjectivCBook.pdf'
       is the original NeXTstep document;
! 
!    * `http://objc.toodarkpark.net' is the same document in another
       format.
  
   The Objective-C exception and synchronization syntax (that is, the
! keywords `@try', `@throw', `@catch', `@finally' and `@synchronized') is
! supported by GCC and is enabled with the option `-fobjc-exceptions'.
  The syntax is briefly documented in this manual and in the Objective-C
  2.0 manuals from Apple.
  
   The Objective-C 2.0 language extensions and features are automatically
! enabled; they include properties (via the `@property', `@synthesize' and
! `@dynamic keywords'), fast enumeration (not available in
! Objective-C++), attributes for methods (such as `deprecated',
! `noreturn', `sentinel', `format'), the `unused' attribute for method
! arguments, the `@package' keyword for instance variables and the
! `@optional' and `@required' keywords in protocols.  You can disable all
! these Objective-C 2.0 language extensions with the option
! `-fobjc-std=objc1', which causes the compiler to recognize the same
! Objective-C language syntax recognized by GCC 4.0, and to produce an
! error if one of the new features is used.
  
   GCC has currently no support for non-fragile instance variables.
  
   The authoritative manual on Objective-C 2.0 is available from Apple:
!    *
!      `https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html'
  
   For more information concerning the history of Objective-C that is
! available online, see `http://gcc.gnu.org/readings.html'
  
  2.4 Go Language
  ===============
  
  As of the GCC 4.7.1 release, GCC supports the Go 1 language standard,
! described at `http://golang.org/doc/go1.html'.
  
  2.5 References for Other Languages
  ==================================
--- 264,379 ----
  
   The original ISO C++ standard was published as the ISO standard
  (ISO/IEC 14882:1998) and amended by a Technical Corrigenda published in
! 2003 (ISO/IEC 14882:2003).  These standards are referred to as C++98 and
! C++03, respectively.  GCC implements the majority of C++98 ('export' is
  a notable exception) and most of the changes in C++03.  To select this
! standard in GCC, use one of the options '-ansi', '-std=c++98', or
! '-std=c++03'; to obtain all the diagnostics required by the standard,
! you should also specify '-pedantic' (or '-pedantic-errors' if you want
  them to be errors rather than warnings).
  
!  A revised ISO C++ standard was published in 2011 as ISO/IEC 14882:2011,
! and is referred to as C++11; before its publication it was commonly
! referred to as C++0x.  C++11 contains several changes to the C++
! language, all of which have been implemented in GCC.  For details see
! <https://gcc.gnu.org/projects/cxx0x.html>.  To select this standard in
! GCC, use the option '-std=c++11'.
  
   Another revised ISO C++ standard was published in 2014 as ISO/IEC
  14882:2014, and is referred to as C++14; before its publication it was
  sometimes referred to as C++1y.  C++14 contains several further changes
  to the C++ language, all of which have been implemented in GCC.  For
! details see <https://gcc.gnu.org/projects/cxx1y.html>.  To select this
! standard in GCC, use the option '-std=c++14'.
  
   GCC also supports the C++ Concepts Technical Specification, ISO/IEC TS
  19217:2015, which allows constraints to be defined for templates,
  allowing template arguments to be checked and for templates to be
! overloaded or specialized based on the constraints.  Support for C++
  Concepts is included in an experimental C++1z mode that corresponds to
  the next revision of the ISO C++ standard, expected to be published in
! 2017.  To enable C++1z support in GCC, use the option '-std=c++17' or
! '-std=c++1z'.
  
   More information about the C++ standards is available on the ISO C++
! committee's web site at <http://www.open-std.org/jtc1/sc22/wg21/>.
  
   To obtain all the diagnostics required by any of the standard versions
! described above you should specify '-pedantic' or '-pedantic-errors',
! otherwise GCC will allow some non-ISO C++ features as extensions.  *Note
  Warning Options::.
  
   By default, GCC also provides some additional extensions to the C++
  language that on rare occasions conflict with the C++ standard.  *Note
! Options Controlling C++ Dialect: C++ Dialect Options.  Use of the '-std'
! options listed above disables these extensions where they they conflict
! with the C++ standard version selected.  You may also select an extended
! version of the C++ language explicitly with '-std=gnu++98' (for C++98
! with GNU extensions), or '-std=gnu++11' (for C++11 with GNU extensions),
! or '-std=gnu++14' (for C++14 with GNU extensions), or '-std=gnu++1z'
! (for C++1z with GNU extensions).
  
   The default, if no C++ language dialect options are given, is
! '-std=gnu++14'.
  
  2.3 Objective-C and Objective-C++ Languages
  ===========================================
  
! GCC supports "traditional" Objective-C (also known as "Objective-C 1.0")
! and contains support for the Objective-C exception and synchronization
! syntax.  It has also support for a number of "Objective-C 2.0" language
! extensions, including properties, fast enumeration (only for
! Objective-C), method attributes and the @optional and @required keywords
! in protocols.  GCC supports Objective-C++ and features available in
! Objective-C are also available in Objective-C++.
  
   GCC by default uses the GNU Objective-C runtime library, which is part
! of GCC and is not the same as the Apple/NeXT Objective-C runtime library
! used on Apple systems.  There are a number of differences documented in
! this manual.  The options '-fgnu-runtime' and '-fnext-runtime' allow you
! to switch between producing output that works with the GNU Objective-C
! runtime library and output that works with the Apple/NeXT Objective-C
! runtime library.
  
   There is no formal written standard for Objective-C or Objective-C++.
  The authoritative manual on traditional Objective-C (1.0) is
  "Object-Oriented Programming and the Objective-C Language":
!    * <http://www.gnustep.org/resources/documentation/ObjectivCBook.pdf>
       is the original NeXTstep document;
!    * <http://objc.toodarkpark.net> is the same document in another
       format.
  
   The Objective-C exception and synchronization syntax (that is, the
! keywords '@try', '@throw', '@catch', '@finally' and '@synchronized') is
! supported by GCC and is enabled with the option '-fobjc-exceptions'.
  The syntax is briefly documented in this manual and in the Objective-C
  2.0 manuals from Apple.
  
   The Objective-C 2.0 language extensions and features are automatically
! enabled; they include properties (via the '@property', '@synthesize' and
! '@dynamic keywords'), fast enumeration (not available in Objective-C++),
! attributes for methods (such as 'deprecated', 'noreturn', 'sentinel',
! 'format'), the 'unused' attribute for method arguments, the '@package'
! keyword for instance variables and the '@optional' and '@required'
! keywords in protocols.  You can disable all these Objective-C 2.0
! language extensions with the option '-fobjc-std=objc1', which causes the
! compiler to recognize the same Objective-C language syntax recognized by
! GCC 4.0, and to produce an error if one of the new features is used.
  
   GCC has currently no support for non-fragile instance variables.
  
   The authoritative manual on Objective-C 2.0 is available from Apple:
!    * 
!      <https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html>
  
   For more information concerning the history of Objective-C that is
! available online, see <http://gcc.gnu.org/readings.html>
  
  2.4 Go Language
  ===============
  
  As of the GCC 4.7.1 release, GCC supports the Go 1 language standard,
! described at <http://golang.org/doc/go1.html>.
  
  2.5 References for Other Languages
  ==================================
*************** conformance and compatibility of the Ada
*** 389,395 ****
  supported by GNU Fortran.
  
   *Note Compatibility with the Java Platform: (gcj)Compatibility, for
! details of compatibility between `gcj' and the Java Platform.
  
  
  File: gcc.info,  Node: Invoking GCC,  Next: C Implementation,  Prev: Standards,  Up: Top
--- 385,391 ----
  supported by GNU Fortran.
  
   *Note Compatibility with the Java Platform: (gcj)Compatibility, for
! details of compatibility between 'gcj' and the Java Platform.
  
  
  File: gcc.info,  Node: Invoking GCC,  Next: C Implementation,  Prev: Standards,  Up: Top
*************** File: gcc.info,  Node: Invoking GCC,  Ne
*** 399,408 ****
  
  When you invoke GCC, it normally does preprocessing, compilation,
  assembly and linking.  The "overall options" allow you to stop this
! process at an intermediate stage.  For example, the `-c' option says
! not to run the linker.  Then the output consists of object files output
! by the assembler.  *Note Options Controlling the Kind of Output:
! Overall Options.
  
   Other options are passed on to one or more stages of processing.  Some
  options control the preprocessor and others the compiler itself.  Yet
--- 395,404 ----
  
  When you invoke GCC, it normally does preprocessing, compilation,
  assembly and linking.  The "overall options" allow you to stop this
! process at an intermediate stage.  For example, the '-c' option says not
! to run the linker.  Then the output consists of object files output by
! the assembler.  *Note Options Controlling the Kind of Output: Overall
! Options.
  
   Other options are passed on to one or more stages of processing.  Some
  options control the preprocessor and others the compiler itself.  Yet
*************** for C programs; when an option is only u
*** 415,441 ****
  for a particular option does not mention a source language, you can use
  that option with all supported languages.
  
!  The usual way to run GCC is to run the executable called `gcc', or
! `MACHINE-gcc' when cross-compiling, or `MACHINE-gcc-VERSION' to run a
! specific version of GCC.  When you compile C++ programs, you should
! invoke GCC as `g++' instead.  *Note Compiling C++ Programs: Invoking
! G++, for information about the differences in behavior between `gcc'
! and `g++' when compiling C++ programs.
  
!  The `gcc' program accepts options and file names as operands.  Many
  options have multi-letter names; therefore multiple single-letter
! options may _not_ be grouped: `-dv' is very different from `-d -v'.
  
   You can mix options and other arguments.  For the most part, the order
  you use doesn't matter.  Order does matter when you use several options
! of the same kind; for example, if you specify `-L' more than once, the
! directories are searched in the order specified.  Also, the placement
! of the `-l' option is significant.
  
!  Many options have long names starting with `-f' or with `-W'--for
! example, `-fmove-loop-invariants', `-Wformat' and so on.  Most of these
! have both positive and negative forms; the negative form of `-ffoo' is
! `-fno-foo'.  This manual documents only one of these two forms,
  whichever one is not the default.
  
   *Note Option Index::, for an index to GCC's options.
--- 411,437 ----
  for a particular option does not mention a source language, you can use
  that option with all supported languages.
  
!  The usual way to run GCC is to run the executable called 'gcc', or
! 'MACHINE-gcc' when cross-compiling, or 'MACHINE-gcc-VERSION' to run a
! specific version of GCC. When you compile C++ programs, you should
! invoke GCC as 'g++' instead.  *Note Compiling C++ Programs: Invoking
! G++, for information about the differences in behavior between 'gcc' and
! 'g++' when compiling C++ programs.
  
!  The 'gcc' program accepts options and file names as operands.  Many
  options have multi-letter names; therefore multiple single-letter
! options may _not_ be grouped: '-dv' is very different from '-d -v'.
  
   You can mix options and other arguments.  For the most part, the order
  you use doesn't matter.  Order does matter when you use several options
! of the same kind; for example, if you specify '-L' more than once, the
! directories are searched in the order specified.  Also, the placement of
! the '-l' option is significant.
  
!  Many options have long names starting with '-f' or with '-W'--for
! example, '-fmove-loop-invariants', '-Wformat' and so on.  Most of these
! have both positive and negative forms; the negative form of '-ffoo' is
! '-fno-foo'.  This manual documents only one of these two forms,
  whichever one is not the default.
  
   *Note Option Index::, for an index to GCC's options.
*************** _Objective-C and Objective-C++ Language
*** 556,563 ****
            -Wundeclared-selector
  
  _Diagnostic Message Formatting Options_
!      *Note Options to Control Diagnostic Messages Formatting:
!      Diagnostic Message Formatting Options.
            -fmessage-length=N
            -fdiagnostics-show-location=[once|every-line]
            -fdiagnostics-color=[auto|never|always]
--- 552,559 ----
            -Wundeclared-selector
  
  _Diagnostic Message Formatting Options_
!      *Note Options to Control Diagnostic Messages Formatting: Diagnostic
!      Message Formatting Options.
            -fmessage-length=N
            -fdiagnostics-show-location=[once|every-line]
            -fdiagnostics-color=[auto|never|always]
*************** _Machine-Dependent Options_
*** 951,956 ****
--- 947,953 ----
            -mmcu=MCU -maccumulate-args -mbranch-cost=COST
            -mcall-prologues -mint8 -mn_flash=SIZE -mno-interrupts
            -mrelax -mrmw -mstrict-X -mtiny-stack -nodevicelib -Waddr-space-convert
+           -Wmisspelled-isr
  
       _Blackfin Options_
            -mcpu=CPU[-SIREVISION]
*************** _Machine-Dependent Options_
*** 1054,1060 ****
  
       _HPPA Options_
            -march=ARCHITECTURE-TYPE
!           -mdisable-fpregs  -mdisable-indexing
            -mfast-indirect-calls  -mgas  -mgnu-ld   -mhp-ld
            -mfixed-range=REGISTER-RANGE
            -mjump-in-delay -mlinker-opt -mlong-calls
--- 1051,1057 ----
  
       _HPPA Options_
            -march=ARCHITECTURE-TYPE
!           -mcaller-copies  -mdisable-fpregs  -mdisable-indexing
            -mfast-indirect-calls  -mgas  -mgnu-ld   -mhp-ld
            -mfixed-range=REGISTER-RANGE
            -mjump-in-delay -mlinker-opt -mlong-calls
*************** _Machine-Dependent Options_
*** 1301,1307 ****
            -mfloat-gprs=yes  -mfloat-gprs=no -mfloat-gprs=single -mfloat-gprs=double
            -mprototype  -mno-prototype
            -msim  -mmvme  -mads  -myellowknife  -memb  -msdata
!           -msdata=OPT  -mvxworks  -G NUM  -pthread
            -mrecip -mrecip=OPT -mno-recip -mrecip-precision
            -mno-recip-precision
            -mveclibabi=TYPE -mfriz -mno-friz
--- 1298,1304 ----
            -mfloat-gprs=yes  -mfloat-gprs=no -mfloat-gprs=single -mfloat-gprs=double
            -mprototype  -mno-prototype
            -msim  -mmvme  -mads  -myellowknife  -memb  -msdata
!           -msdata=OPT  -mreadonly-in-sdata  -mvxworks  -G NUM  -pthread
            -mrecip -mrecip=OPT -mno-recip -mrecip-precision
            -mno-recip-precision
            -mveclibabi=TYPE -mfriz -mno-friz
*************** _Machine-Dependent Options_
*** 1480,1486 ****
            -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv
            -mavx256-split-unaligned-load -mavx256-split-unaligned-store
            -malign-data=TYPE -mstack-protector-guard=GUARD
!           -mmitigate-rop
  
       _x86 Windows Options_
            -mconsole -mcygwin -mno-cygwin -mdll
--- 1477,1484 ----
            -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv
            -mavx256-split-unaligned-load -mavx256-split-unaligned-store
            -malign-data=TYPE -mstack-protector-guard=GUARD
!           -mmitigate-rop -mindirect-branch=CHOICE
!           -mfunction-return=CHOICE -mindirect-branch-register
  
       _x86 Windows Options_
            -mconsole -mcygwin -mno-cygwin -mdll
*************** File: gcc.info,  Node: Overall Options,
*** 1511,1640 ****
  Compilation can involve up to four stages: preprocessing, compilation
  proper, assembly and linking, always in that order.  GCC is capable of
  preprocessing and compiling several files either into several assembler
! input files, or into one assembler input file; then each assembler
! input file produces an object file, and linking combines all the object
! files (those newly compiled, and those specified as input) into an
! executable file.
  
   For any given input file, the file name suffix determines what kind of
  compilation is done:
  
! `FILE.c'
       C source code that must be preprocessed.
  
! `FILE.i'
       C source code that should not be preprocessed.
  
! `FILE.ii'
       C++ source code that should not be preprocessed.
  
! `FILE.m'
       Objective-C source code.  Note that you must link with the
!      `libobjc' library to make an Objective-C program work.
  
! `FILE.mi'
       Objective-C source code that should not be preprocessed.
  
! `FILE.mm'
! `FILE.M'
       Objective-C++ source code.  Note that you must link with the
!      `libobjc' library to make an Objective-C++ program work.  Note
!      that `.M' refers to a literal capital M.
  
! `FILE.mii'
       Objective-C++ source code that should not be preprocessed.
  
! `FILE.h'
       C, C++, Objective-C or Objective-C++ header file to be turned into
       a precompiled header (default), or C, C++ header file to be turned
!      into an Ada spec (via the `-fdump-ada-spec' switch).
  
! `FILE.cc'
! `FILE.cp'
! `FILE.cxx'
! `FILE.cpp'
! `FILE.CPP'
! `FILE.c++'
! `FILE.C'
!      C++ source code that must be preprocessed.  Note that in `.cxx',
!      the last two letters must both be literally `x'.  Likewise, `.C'
       refers to a literal capital C.
  
! `FILE.mm'
! `FILE.M'
       Objective-C++ source code that must be preprocessed.
  
! `FILE.mii'
       Objective-C++ source code that should not be preprocessed.
  
! `FILE.hh'
! `FILE.H'
! `FILE.hp'
! `FILE.hxx'
! `FILE.hpp'
! `FILE.HPP'
! `FILE.h++'
! `FILE.tcc'
       C++ header file to be turned into a precompiled header or Ada spec.
  
! `FILE.f'
! `FILE.for'
! `FILE.ftn'
       Fixed form Fortran source code that should not be preprocessed.
  
! `FILE.F'
! `FILE.FOR'
! `FILE.fpp'
! `FILE.FPP'
! `FILE.FTN'
       Fixed form Fortran source code that must be preprocessed (with the
       traditional preprocessor).
  
! `FILE.f90'
! `FILE.f95'
! `FILE.f03'
! `FILE.f08'
       Free form Fortran source code that should not be preprocessed.
  
! `FILE.F90'
! `FILE.F95'
! `FILE.F03'
! `FILE.F08'
       Free form Fortran source code that must be preprocessed (with the
       traditional preprocessor).
  
! `FILE.go'
       Go source code.
  
! `FILE.ads'
       Ada source code file that contains a library unit declaration (a
       declaration of a package, subprogram, or generic, or a generic
       instantiation), or a library unit renaming declaration (a package,
       generic, or subprogram renaming declaration).  Such files are also
       called "specs".
  
! `FILE.adb'
       Ada source code file containing a library unit body (a subprogram
       or package body).  Such files are also called "bodies".
  
! `FILE.s'
       Assembler code.
  
! `FILE.S'
! `FILE.sx'
       Assembler code that must be preprocessed.
  
! `OTHER'
!      An object file to be fed straight into linking.  Any file name
!      with no recognized suffix is treated this way.
  
!  You can specify the input language explicitly with the `-x' option:
  
! `-x LANGUAGE'
       Specify explicitly the LANGUAGE for the following input files
       (rather than letting the compiler choose a default based on the
       file name suffix).  This option applies to all following input
!      files until the next `-x' option.  Possible values for LANGUAGE
       are:
            c  c-header  cpp-output
            c++  c++-header  c++-cpp-output
--- 1509,1638 ----
  Compilation can involve up to four stages: preprocessing, compilation
  proper, assembly and linking, always in that order.  GCC is capable of
  preprocessing and compiling several files either into several assembler
! input files, or into one assembler input file; then each assembler input
! file produces an object file, and linking combines all the object files
! (those newly compiled, and those specified as input) into an executable
! file.
  
   For any given input file, the file name suffix determines what kind of
  compilation is done:
  
! 'FILE.c'
       C source code that must be preprocessed.
  
! 'FILE.i'
       C source code that should not be preprocessed.
  
! 'FILE.ii'
       C++ source code that should not be preprocessed.
  
! 'FILE.m'
       Objective-C source code.  Note that you must link with the
!      'libobjc' library to make an Objective-C program work.
  
! 'FILE.mi'
       Objective-C source code that should not be preprocessed.
  
! 'FILE.mm'
! 'FILE.M'
       Objective-C++ source code.  Note that you must link with the
!      'libobjc' library to make an Objective-C++ program work.  Note that
!      '.M' refers to a literal capital M.
  
! 'FILE.mii'
       Objective-C++ source code that should not be preprocessed.
  
! 'FILE.h'
       C, C++, Objective-C or Objective-C++ header file to be turned into
       a precompiled header (default), or C, C++ header file to be turned
!      into an Ada spec (via the '-fdump-ada-spec' switch).
  
! 'FILE.cc'
! 'FILE.cp'
! 'FILE.cxx'
! 'FILE.cpp'
! 'FILE.CPP'
! 'FILE.c++'
! 'FILE.C'
!      C++ source code that must be preprocessed.  Note that in '.cxx',
!      the last two letters must both be literally 'x'.  Likewise, '.C'
       refers to a literal capital C.
  
! 'FILE.mm'
! 'FILE.M'
       Objective-C++ source code that must be preprocessed.
  
! 'FILE.mii'
       Objective-C++ source code that should not be preprocessed.
  
! 'FILE.hh'
! 'FILE.H'
! 'FILE.hp'
! 'FILE.hxx'
! 'FILE.hpp'
! 'FILE.HPP'
! 'FILE.h++'
! 'FILE.tcc'
       C++ header file to be turned into a precompiled header or Ada spec.
  
! 'FILE.f'
! 'FILE.for'
! 'FILE.ftn'
       Fixed form Fortran source code that should not be preprocessed.
  
! 'FILE.F'
! 'FILE.FOR'
! 'FILE.fpp'
! 'FILE.FPP'
! 'FILE.FTN'
       Fixed form Fortran source code that must be preprocessed (with the
       traditional preprocessor).
  
! 'FILE.f90'
! 'FILE.f95'
! 'FILE.f03'
! 'FILE.f08'
       Free form Fortran source code that should not be preprocessed.
  
! 'FILE.F90'
! 'FILE.F95'
! 'FILE.F03'
! 'FILE.F08'
       Free form Fortran source code that must be preprocessed (with the
       traditional preprocessor).
  
! 'FILE.go'
       Go source code.
  
! 'FILE.ads'
       Ada source code file that contains a library unit declaration (a
       declaration of a package, subprogram, or generic, or a generic
       instantiation), or a library unit renaming declaration (a package,
       generic, or subprogram renaming declaration).  Such files are also
       called "specs".
  
! 'FILE.adb'
       Ada source code file containing a library unit body (a subprogram
       or package body).  Such files are also called "bodies".
  
! 'FILE.s'
       Assembler code.
  
! 'FILE.S'
! 'FILE.sx'
       Assembler code that must be preprocessed.
  
! 'OTHER'
!      An object file to be fed straight into linking.  Any file name with
!      no recognized suffix is treated this way.
  
!  You can specify the input language explicitly with the '-x' option:
  
! '-x LANGUAGE'
       Specify explicitly the LANGUAGE for the following input files
       (rather than letting the compiler choose a default based on the
       file name suffix).  This option applies to all following input
!      files until the next '-x' option.  Possible values for LANGUAGE
       are:
            c  c-header  cpp-output
            c++  c++-header  c++-cpp-output
*************** compilation is done:
*** 1646,1770 ****
            go
            java
  
! `-x none'
       Turn off any specification of a language, so that subsequent files
       are handled according to their file name suffixes (as they are if
!      `-x' has not been used at all).
  
!  If you only want some of the stages of compilation, you can use `-x'
! (or filename suffixes) to tell `gcc' where to start, and one of the
! options `-c', `-S', or `-E' to say where `gcc' is to stop.  Note that
! some combinations (for example, `-x cpp-output -E') instruct `gcc' to
! do nothing at all.
  
! `-c'
       Compile or assemble the source files, but do not link.  The linking
       stage simply is not done.  The ultimate output is in the form of an
       object file for each source file.
  
       By default, the object file name for a source file is made by
!      replacing the suffix `.c', `.i', `.s', etc., with `.o'.
  
       Unrecognized input files, not requiring compilation or assembly,
       are ignored.
  
! `-S'
       Stop after the stage of compilation proper; do not assemble.  The
       output is in the form of an assembler code file for each
       non-assembler input file specified.
  
       By default, the assembler file name for a source file is made by
!      replacing the suffix `.c', `.i', etc., with `.s'.
  
       Input files that don't require compilation are ignored.
  
! `-E'
!      Stop after the preprocessing stage; do not run the compiler
!      proper.  The output is in the form of preprocessed source code,
!      which is sent to the standard output.
  
       Input files that don't require preprocessing are ignored.
  
! `-o FILE'
!      Place output in file FILE.  This applies to whatever sort of
!      output is being produced, whether it be an executable file, an
!      object file, an assembler file or preprocessed C code.
  
!      If `-o' is not specified, the default is to put an executable file
!      in `a.out', the object file for `SOURCE.SUFFIX' in `SOURCE.o', its
!      assembler file in `SOURCE.s', a precompiled header file in
!      `SOURCE.SUFFIX.gch', and all preprocessed C source on standard
       output.
  
! `-v'
       Print (on standard error output) the commands executed to run the
       stages of compilation.  Also print the version number of the
       compiler driver program and of the preprocessor and the compiler
       proper.
  
! `-###'
!      Like `-v' except the commands are not executed and arguments are
!      quoted unless they contain only alphanumeric characters or `./-_'.
       This is useful for shell scripts to capture the driver-generated
       command lines.
  
! `--help'
       Print (on the standard output) a description of the command-line
!      options understood by `gcc'.  If the `-v' option is also specified
!      then `--help' is also passed on to the various processes invoked
!      by `gcc', so that they can display the command-line options they
!      accept.  If the `-Wextra' option has also been specified (prior to
!      the `--help' option), then command-line options that have no
       documentation associated with them are also displayed.
  
! `--target-help'
       Print (on the standard output) a description of target-specific
       command-line options for each tool.  For some targets extra
       target-specific information may also be printed.
  
! `--help={CLASS|[^]QUALIFIER}[,...]'
       Print (on the standard output) a description of the command-line
       options understood by the compiler that fit into all specified
       classes and qualifiers.  These are the supported classes:
  
!     `optimizers'
            Display all of the optimization options supported by the
            compiler.
  
!     `warnings'
            Display all of the options controlling warning messages
            produced by the compiler.
  
!     `target'
!           Display target-specific options.  Unlike the `--target-help'
            option however, target-specific options of the linker and
            assembler are not displayed.  This is because those tools do
!           not currently support the extended `--help=' syntax.
  
!     `params'
!           Display the values recognized by the `--param' option.
  
!     LANGUAGE
            Display the options supported for LANGUAGE, where LANGUAGE is
            the name of one of the languages supported in this version of
            GCC.
  
!     `common'
            Display the options that are common to all languages.
  
       These are the supported qualifiers:
  
!     `undocumented'
            Display only those options that are undocumented.
  
!     `joined'
            Display options taking an argument that appears after an equal
            sign in the same continuous piece of text, such as:
!           `--help=target'.
  
!     `separate'
            Display options taking an argument that appears as a separate
!           word following the original option, such as: `-o output-file'.
  
       Thus for example to display all the undocumented target-specific
       switches supported by the compiler, use:
--- 1644,1768 ----
            go
            java
  
! '-x none'
       Turn off any specification of a language, so that subsequent files
       are handled according to their file name suffixes (as they are if
!      '-x' has not been used at all).
  
!  If you only want some of the stages of compilation, you can use '-x'
! (or filename suffixes) to tell 'gcc' where to start, and one of the
! options '-c', '-S', or '-E' to say where 'gcc' is to stop.  Note that
! some combinations (for example, '-x cpp-output -E') instruct 'gcc' to do
! nothing at all.
  
! '-c'
       Compile or assemble the source files, but do not link.  The linking
       stage simply is not done.  The ultimate output is in the form of an
       object file for each source file.
  
       By default, the object file name for a source file is made by
!      replacing the suffix '.c', '.i', '.s', etc., with '.o'.
  
       Unrecognized input files, not requiring compilation or assembly,
       are ignored.
  
! '-S'
       Stop after the stage of compilation proper; do not assemble.  The
       output is in the form of an assembler code file for each
       non-assembler input file specified.
  
       By default, the assembler file name for a source file is made by
!      replacing the suffix '.c', '.i', etc., with '.s'.
  
       Input files that don't require compilation are ignored.
  
! '-E'
!      Stop after the preprocessing stage; do not run the compiler proper.
!      The output is in the form of preprocessed source code, which is
!      sent to the standard output.
  
       Input files that don't require preprocessing are ignored.
  
! '-o FILE'
!      Place output in file FILE.  This applies to whatever sort of output
!      is being produced, whether it be an executable file, an object
!      file, an assembler file or preprocessed C code.
  
!      If '-o' is not specified, the default is to put an executable file
!      in 'a.out', the object file for 'SOURCE.SUFFIX' in 'SOURCE.o', its
!      assembler file in 'SOURCE.s', a precompiled header file in
!      'SOURCE.SUFFIX.gch', and all preprocessed C source on standard
       output.
  
! '-v'
       Print (on standard error output) the commands executed to run the
       stages of compilation.  Also print the version number of the
       compiler driver program and of the preprocessor and the compiler
       proper.
  
! '-###'
!      Like '-v' except the commands are not executed and arguments are
!      quoted unless they contain only alphanumeric characters or './-_'.
       This is useful for shell scripts to capture the driver-generated
       command lines.
  
! '--help'
       Print (on the standard output) a description of the command-line
!      options understood by 'gcc'.  If the '-v' option is also specified
!      then '--help' is also passed on to the various processes invoked by
!      'gcc', so that they can display the command-line options they
!      accept.  If the '-Wextra' option has also been specified (prior to
!      the '--help' option), then command-line options that have no
       documentation associated with them are also displayed.
  
! '--target-help'
       Print (on the standard output) a description of target-specific
       command-line options for each tool.  For some targets extra
       target-specific information may also be printed.
  
! '--help={CLASS|[^]QUALIFIER}[,...]'
       Print (on the standard output) a description of the command-line
       options understood by the compiler that fit into all specified
       classes and qualifiers.  These are the supported classes:
  
!      'optimizers'
            Display all of the optimization options supported by the
            compiler.
  
!      'warnings'
            Display all of the options controlling warning messages
            produced by the compiler.
  
!      'target'
!           Display target-specific options.  Unlike the '--target-help'
            option however, target-specific options of the linker and
            assembler are not displayed.  This is because those tools do
!           not currently support the extended '--help=' syntax.
  
!      'params'
!           Display the values recognized by the '--param' option.
  
!      LANGUAGE
            Display the options supported for LANGUAGE, where LANGUAGE is
            the name of one of the languages supported in this version of
            GCC.
  
!      'common'
            Display the options that are common to all languages.
  
       These are the supported qualifiers:
  
!      'undocumented'
            Display only those options that are undocumented.
  
!      'joined'
            Display options taking an argument that appears after an equal
            sign in the same continuous piece of text, such as:
!           '--help=target'.
  
!      'separate'
            Display options taking an argument that appears as a separate
!           word following the original option, such as: '-o output-file'.
  
       Thus for example to display all the undocumented target-specific
       switches supported by the compiler, use:
*************** do nothing at all.
*** 1772,1784 ****
            --help=target,undocumented
  
       The sense of a qualifier can be inverted by prefixing it with the
!      `^' character, so for example to display all binary warning
!      options (i.e., ones that are either on or off and that do not take
!      an argument) that have a description, use:
  
            --help=warnings,^joined,^undocumented
  
!      The argument to `--help=' should not consist solely of inverted
       qualifiers.
  
       Combining several classes is possible, although this usually
--- 1770,1782 ----
            --help=target,undocumented
  
       The sense of a qualifier can be inverted by prefixing it with the
!      '^' character, so for example to display all binary warning options
!      (i.e., ones that are either on or off and that do not take an
!      argument) that have a description, use:
  
            --help=warnings,^joined,^undocumented
  
!      The argument to '--help=' should not consist solely of inverted
       qualifiers.
  
       Combining several classes is possible, although this usually
*************** do nothing at all.
*** 1789,1806 ****
  
            --help=target,optimizers
  
!      The `--help=' option can be repeated on the command line.  Each
       successive use displays its requested class of options, skipping
       those that have already been displayed.
  
!      If the `-Q' option appears on the command line before the
!      `--help=' option, then the descriptive text displayed by `--help='
!      is changed.  Instead of describing the displayed options, an
       indication is given as to whether the option is enabled, disabled
       or set to a specific value (assuming that the compiler knows this
!      at the point where the `--help=' option is used).
  
!      Here is a truncated example from the ARM port of `gcc':
  
              % gcc -Q -mabi=2 --help=target -c
              The following options are target specific:
--- 1787,1804 ----
  
            --help=target,optimizers
  
!      The '--help=' option can be repeated on the command line.  Each
       successive use displays its requested class of options, skipping
       those that have already been displayed.
  
!      If the '-Q' option appears on the command line before the '--help='
!      option, then the descriptive text displayed by '--help=' is
!      changed.  Instead of describing the displayed options, an
       indication is given as to whether the option is enabled, disabled
       or set to a specific value (assuming that the compiler knows this
!      at the point where the '--help=' option is used).
  
!      Here is a truncated example from the ARM port of 'gcc':
  
              % gcc -Q -mabi=2 --help=target -c
              The following options are target specific:
*************** do nothing at all.
*** 1810,1903 ****
  
       The output is sensitive to the effects of previous command-line
       options, so for example it is possible to find out which
!      optimizations are enabled at `-O2' by using:
  
            -Q -O2 --help=optimizers
  
       Alternatively you can discover which binary optimizations are
!      enabled by `-O3' by using:
  
            gcc -c -Q -O3 --help=optimizers > /tmp/O3-opts
            gcc -c -Q -O2 --help=optimizers > /tmp/O2-opts
            diff /tmp/O2-opts /tmp/O3-opts | grep enabled
  
! `--version'
       Display the version number and copyrights of the invoked GCC.
  
! `-pass-exit-codes'
!      Normally the `gcc' program exits with the code of 1 if any phase
!      of the compiler returns a non-success return code.  If you specify
!      `-pass-exit-codes', the `gcc' program instead returns with the
       numerically highest error produced by any phase returning an error
       indication.  The C, C++, and Fortran front ends return 4 if an
       internal compiler error is encountered.
  
! `-pipe'
       Use pipes rather than temporary files for communication between the
       various stages of compilation.  This fails to work on some systems
       where the assembler is unable to read from a pipe; but the GNU
       assembler has no trouble.
  
! `-specs=FILE'
!      Process FILE after the compiler reads in the standard `specs'
!      file, in order to override the defaults which the `gcc' driver
!      program uses when determining what switches to pass to `cc1',
!      `cc1plus', `as', `ld', etc.  More than one `-specs=FILE' can be
!      specified on the command line, and they are processed in order,
!      from left to right.  *Note Spec Files::, for information about the
!      format of the FILE.
  
! `-wrapper'
       Invoke all subcommands under a wrapper program.  The name of the
       wrapper program and its parameters are passed as a comma separated
       list.
  
            gcc -c t.c -wrapper gdb,--args
  
!      This invokes all subprograms of `gcc' under `gdb --args', thus the
!      invocation of `cc1' is `gdb --args cc1 ...'.
  
! `-fplugin=NAME.so'
!      Load the plugin code in file NAME.so, assumed to be a shared
!      object to be dlopen'd by the compiler.  The base name of the
!      shared object file is used to identify the plugin for the purposes
!      of argument parsing (See `-fplugin-arg-NAME-KEY=VALUE' below).
!      Each plugin should define the callback functions specified in the
!      Plugins API.
  
! `-fplugin-arg-NAME-KEY=VALUE'
       Define an argument called KEY with a value of VALUE for the plugin
       called NAME.
  
! `-fdump-ada-spec[-slim]'
       For C and C++ source and include files, generate corresponding Ada
!      specs.  *Note Generating Ada Bindings for C and C++ headers:
!      (gnat_ugn)Generating Ada Bindings for C and C++ headers, which
!      provides detailed documentation on this feature.
  
! `-fada-spec-parent=UNIT'
!      In conjunction with `-fdump-ada-spec[-slim]' above, generate Ada
       specs as child units of parent UNIT.
  
! `-fdump-go-spec=FILE'
       For input files in any language, generate corresponding Go
!      declarations in FILE.  This generates Go `const', `type', `var',
!      and `func' declarations which may be a useful way to start writing
       a Go interface to code written in some other language.
  
! `@FILE'
!      Read command-line options from FILE.  The options read are
!      inserted in place of the original @FILE option.  If FILE does not
!      exist, or cannot be read, then the option will be treated
!      literally, and not removed.
  
       Options in FILE are separated by whitespace.  A whitespace
       character may be included in an option by surrounding the entire
!      option in either single or double quotes.  Any character
!      (including a backslash) may be included by prefixing the character
!      to be included with a backslash.  The FILE may itself contain
!      additional @FILE options; any such options will be processed
!      recursively.
  
  
  File: gcc.info,  Node: Invoking G++,  Next: C Dialect Options,  Prev: Overall Options,  Up: Invoking GCC
--- 1808,1898 ----
  
       The output is sensitive to the effects of previous command-line
       options, so for example it is possible to find out which
!      optimizations are enabled at '-O2' by using:
  
            -Q -O2 --help=optimizers
  
       Alternatively you can discover which binary optimizations are
!      enabled by '-O3' by using:
  
            gcc -c -Q -O3 --help=optimizers > /tmp/O3-opts
            gcc -c -Q -O2 --help=optimizers > /tmp/O2-opts
            diff /tmp/O2-opts /tmp/O3-opts | grep enabled
  
! '--version'
       Display the version number and copyrights of the invoked GCC.
  
! '-pass-exit-codes'
!      Normally the 'gcc' program exits with the code of 1 if any phase of
!      the compiler returns a non-success return code.  If you specify
!      '-pass-exit-codes', the 'gcc' program instead returns with the
       numerically highest error produced by any phase returning an error
       indication.  The C, C++, and Fortran front ends return 4 if an
       internal compiler error is encountered.
  
! '-pipe'
       Use pipes rather than temporary files for communication between the
       various stages of compilation.  This fails to work on some systems
       where the assembler is unable to read from a pipe; but the GNU
       assembler has no trouble.
  
! '-specs=FILE'
!      Process FILE after the compiler reads in the standard 'specs' file,
!      in order to override the defaults which the 'gcc' driver program
!      uses when determining what switches to pass to 'cc1', 'cc1plus',
!      'as', 'ld', etc.  More than one '-specs=FILE' can be specified on
!      the command line, and they are processed in order, from left to
!      right.  *Note Spec Files::, for information about the format of the
!      FILE.
  
! '-wrapper'
       Invoke all subcommands under a wrapper program.  The name of the
       wrapper program and its parameters are passed as a comma separated
       list.
  
            gcc -c t.c -wrapper gdb,--args
  
!      This invokes all subprograms of 'gcc' under 'gdb --args', thus the
!      invocation of 'cc1' is 'gdb --args cc1 ...'.
  
! '-fplugin=NAME.so'
!      Load the plugin code in file NAME.so, assumed to be a shared object
!      to be dlopen'd by the compiler.  The base name of the shared object
!      file is used to identify the plugin for the purposes of argument
!      parsing (See '-fplugin-arg-NAME-KEY=VALUE' below).  Each plugin
!      should define the callback functions specified in the Plugins API.
  
! '-fplugin-arg-NAME-KEY=VALUE'
       Define an argument called KEY with a value of VALUE for the plugin
       called NAME.
  
! '-fdump-ada-spec[-slim]'
       For C and C++ source and include files, generate corresponding Ada
!      specs.  *Note (gnat_ugn)Generating Ada Bindings for C and C++
!      headers::, which provides detailed documentation on this feature.
  
! '-fada-spec-parent=UNIT'
!      In conjunction with '-fdump-ada-spec[-slim]' above, generate Ada
       specs as child units of parent UNIT.
  
! '-fdump-go-spec=FILE'
       For input files in any language, generate corresponding Go
!      declarations in FILE.  This generates Go 'const', 'type', 'var',
!      and 'func' declarations which may be a useful way to start writing
       a Go interface to code written in some other language.
  
! '@FILE'
!      Read command-line options from FILE.  The options read are inserted
!      in place of the original @FILE option.  If FILE does not exist, or
!      cannot be read, then the option will be treated literally, and not
!      removed.
  
       Options in FILE are separated by whitespace.  A whitespace
       character may be included in an option by surrounding the entire
!      option in either single or double quotes.  Any character (including
!      a backslash) may be included by prefixing the character to be
!      included with a backslash.  The FILE may itself contain additional
!      @FILE options; any such options will be processed recursively.
  
  
  File: gcc.info,  Node: Invoking G++,  Next: C Dialect Options,  Prev: Overall Options,  Up: Invoking GCC
*************** File: gcc.info,  Node: Invoking G++,  Ne
*** 1905,1925 ****
  3.3 Compiling C++ Programs
  ==========================
  
! C++ source files conventionally use one of the suffixes `.C', `.cc',
! `.cpp', `.CPP', `.c++', `.cp', or `.cxx'; C++ header files often use
! `.hh', `.hpp', `.H', or (for shared template code) `.tcc'; and
! preprocessed C++ files use the suffix `.ii'.  GCC recognizes files with
  these names and compiles them as C++ programs even if you call the
! compiler the same way as for compiling C programs (usually with the
! name `gcc').
  
!  However, the use of `gcc' does not add the C++ library.  `g++' is a
  program that calls GCC and automatically specifies linking against the
! C++ library.  It treats `.c', `.h' and `.i' files as C++ source files
! instead of C source files unless `-x' is used.  This program is also
! useful when precompiling a C header file with a `.h' extension for use
! in C++ compilations.  On many systems, `g++' is also installed with the
! name `c++'.
  
   When you compile C++ programs, you may specify many of the same
  command-line options that you use for compiling programs in any
--- 1900,1920 ----
  3.3 Compiling C++ Programs
  ==========================
  
! C++ source files conventionally use one of the suffixes '.C', '.cc',
! '.cpp', '.CPP', '.c++', '.cp', or '.cxx'; C++ header files often use
! '.hh', '.hpp', '.H', or (for shared template code) '.tcc'; and
! preprocessed C++ files use the suffix '.ii'.  GCC recognizes files with
  these names and compiles them as C++ programs even if you call the
! compiler the same way as for compiling C programs (usually with the name
! 'gcc').
  
!  However, the use of 'gcc' does not add the C++ library.  'g++' is a
  program that calls GCC and automatically specifies linking against the
! C++ library.  It treats '.c', '.h' and '.i' files as C++ source files
! instead of C source files unless '-x' is used.  This program is also
! useful when precompiling a C header file with a '.h' extension for use
! in C++ compilations.  On many systems, 'g++' is also installed with the
! name 'c++'.
  
   When you compile C++ programs, you may specify many of the same
  command-line options that you use for compiling programs in any
*************** The following options control the dialec
*** 1940,2235 ****
  from C, such as C++, Objective-C and Objective-C++) that the compiler
  accepts:
  
! `-ansi'
!      In C mode, this is equivalent to `-std=c90'. In C++ mode, it is
!      equivalent to `-std=c++98'.
  
       This turns off certain features of GCC that are incompatible with
!      ISO C90 (when compiling C code), or of standard C++ (when
!      compiling C++ code), such as the `asm' and `typeof' keywords, and
!      predefined macros such as `unix' and `vax' that identify the type
!      of system you are using.  It also enables the undesirable and
!      rarely used ISO trigraph feature.  For the C compiler, it disables
!      recognition of C++ style `//' comments as well as the `inline'
!      keyword.
  
!      The alternate keywords `__asm__', `__extension__', `__inline__'
!      and `__typeof__' continue to work despite `-ansi'.  You would not
!      want to use them in an ISO C program, of course, but it is useful
!      to put them in header files that might be included in compilations
!      done with `-ansi'.  Alternate predefined macros such as `__unix__'
!      and `__vax__' are also available, with or without `-ansi'.
  
!      The `-ansi' option does not cause non-ISO programs to be rejected
!      gratuitously.  For that, `-Wpedantic' is required in addition to
!      `-ansi'.  *Note Warning Options::.
  
!      The macro `__STRICT_ANSI__' is predefined when the `-ansi' option
       is used.  Some header files may notice this macro and refrain from
!      declaring certain functions or defining certain macros that the
!      ISO standard doesn't call for; this is to avoid interfering with
!      any programs that might use these names for other things.
  
       Functions that are normally built in but do not have semantics
!      defined by ISO C (such as `alloca' and `ffs') are not built-in
!      functions when `-ansi' is used.  *Note Other built-in functions
       provided by GCC: Other Builtins, for details of the functions
       affected.
  
! `-std='
!      Determine the language standard. *Note Language Standards
       Supported by GCC: Standards, for details of these standard
!      versions.  This option is currently only supported when compiling
!      C or C++.
  
!      The compiler can accept several base standards, such as `c90' or
!      `c++98', and GNU dialects of those standards, such as `gnu90' or
!      `gnu++98'.  When a base standard is specified, the compiler
!      accepts all programs following that standard plus those using GNU
!      extensions that do not contradict it.  For example, `-std=c90'
       turns off certain features of GCC that are incompatible with ISO
!      C90, such as the `asm' and `typeof' keywords, but not other GNU
       extensions that do not have a meaning in ISO C90, such as omitting
!      the middle term of a `?:' expression. On the other hand, when a
       GNU dialect of a standard is specified, all features supported by
       the compiler are enabled, even when those features change the
       meaning of the base standard.  As a result, some strict-conforming
       programs may be rejected.  The particular standard is used by
!      `-Wpedantic' to identify which features are GNU extensions given
!      that version of the standard. For example `-std=gnu90 -Wpedantic'
!      warns about C++ style `//' comments, while `-std=gnu99 -Wpedantic'
       does not.
  
       A value for this option must be provided; possible values are
  
!     `c90'
!     `c89'
!     `iso9899:1990'
            Support all ISO C90 programs (certain GNU extensions that
!           conflict with ISO C90 are disabled). Same as `-ansi' for C
            code.
  
!     `iso9899:199409'
            ISO C90 as modified in amendment 1.
  
!     `c99'
!     `c9x'
!     `iso9899:1999'
!     `iso9899:199x'
!           ISO C99.  This standard is substantially completely
!           supported, modulo bugs and floating-point issues (mainly but
!           not entirely relating to optional C99 features from Annexes F
!           and G).  See `http://gcc.gnu.org/c99status.html' for more
!           information.  The names `c9x' and `iso9899:199x' are
!           deprecated.
  
!     `c11'
!     `c1x'
!     `iso9899:2011'
            ISO C11, the 2011 revision of the ISO C standard.  This
            standard is substantially completely supported, modulo bugs,
            floating-point issues (mainly but not entirely relating to
            optional C11 features from Annexes F and G) and the optional
            Annexes K (Bounds-checking interfaces) and L (Analyzability).
!           The name `c1x' is deprecated.
  
!     `gnu90'
!     `gnu89'
            GNU dialect of ISO C90 (including some C99 features).
  
!     `gnu99'
!     `gnu9x'
!           GNU dialect of ISO C99.  The name `gnu9x' is deprecated.
  
!     `gnu11'
!     `gnu1x'
            GNU dialect of ISO C11.  This is the default for C code.  The
!           name `gnu1x' is deprecated.
  
!     `c++98'
!     `c++03'
            The 1998 ISO C++ standard plus the 2003 technical corrigendum
!           and some additional defect reports. Same as `-ansi' for C++
            code.
  
!     `gnu++98'
!     `gnu++03'
!           GNU dialect of `-std=c++98'.
  
!     `c++11'
!     `c++0x'
!           The 2011 ISO C++ standard plus amendments.  The name `c++0x'
            is deprecated.
  
!     `gnu++11'
!     `gnu++0x'
!           GNU dialect of `-std=c++11'.  The name `gnu++0x' is
            deprecated.
  
!     `c++14'
!     `c++1y'
!           The 2014 ISO C++ standard plus amendments.  The name `c++1y'
            is deprecated.
  
!     `gnu++14'
!     `gnu++1y'
!           GNU dialect of `-std=c++14'.  This is the default for C++
!           code.  The name `gnu++1y' is deprecated.
  
!     `c++1z'
!           The next revision of the ISO C++ standard, tentatively
!           planned for 2017.  Support is highly experimental, and will
!           almost certainly change in incompatible ways in future
!           releases.
  
!     `gnu++1z'
!           GNU dialect of `-std=c++1z'.  Support is highly experimental,
            and will almost certainly change in incompatible ways in
            future releases.
  
! `-fgnu89-inline'
!      The option `-fgnu89-inline' tells GCC to use the traditional GNU
!      semantics for `inline' functions when in C99 mode.  *Note An
!      Inline Function is As Fast As a Macro: Inline.  Using this option
!      is roughly equivalent to adding the `gnu_inline' function
!      attribute to all inline functions (*note Function Attributes::).
  
!      The option `-fno-gnu89-inline' explicitly tells GCC to use the C99
!      semantics for `inline' when in C99 or gnu99 mode (i.e., it
       specifies the default behavior).  This option is not supported in
!      `-std=c90' or `-std=gnu90' mode.
  
!      The preprocessor macros `__GNUC_GNU_INLINE__' and
!      `__GNUC_STDC_INLINE__' may be used to check which semantics are in
!      effect for `inline' functions.  *Note Common Predefined Macros:
!      (cpp)Common Predefined Macros.
  
! `-aux-info FILENAME'
       Output to the given filename prototyped declarations for all
       functions declared and/or defined in a translation unit, including
       those in header files.  This option is silently ignored in any
       language other than C.
  
       Besides declarations, the file indicates, in comments, the origin
!      of each declaration (source file and line), whether the
!      declaration was implicit, prototyped or unprototyped (`I', `N' for
!      new or `O' for old, respectively, in the first character after the
!      line number and the colon), and whether it came from a declaration
!      or a definition (`C' or `F', respectively, in the following
!      character).  In the case of function definitions, a K&R-style list
!      of arguments followed by their declarations is also provided,
!      inside comments, after the declaration.
  
! `-fallow-parameterless-variadic-functions'
       Accept variadic functions without named parameters.
  
       Although it is possible to define such a function, this is not very
       useful as it is not possible to read the arguments.  This is only
       supported for C as this construct is allowed by C++.
  
! `-fno-asm'
!      Do not recognize `asm', `inline' or `typeof' as a keyword, so that
       code can use these words as identifiers.  You can use the keywords
!      `__asm__', `__inline__' and `__typeof__' instead.  `-ansi' implies
!      `-fno-asm'.
  
!      In C++, this switch only affects the `typeof' keyword, since `asm'
!      and `inline' are standard keywords.  You may want to use the
!      `-fno-gnu-keywords' flag instead, which has the same effect.  In
!      C99 mode (`-std=c99' or `-std=gnu99'), this switch only affects
!      the `asm' and `typeof' keywords, since `inline' is a standard
!      keyword in ISO C99.
  
! `-fno-builtin'
! `-fno-builtin-FUNCTION'
       Don't recognize built-in functions that do not begin with
!      `__builtin_' as prefix.  *Note Other built-in functions provided
!      by GCC: Other Builtins, for details of the functions affected,
!      including those which are not built-in functions when `-ansi' or
!      `-std' options for strict ISO C conformance are used because they
       do not have an ISO standard meaning.
  
       GCC normally generates special code to handle certain built-in
!      functions more efficiently; for instance, calls to `alloca' may
       become single instructions which adjust the stack directly, and
!      calls to `memcpy' may become inline copy loops.  The resulting
!      code is often both smaller and faster, but since the function
!      calls no longer appear as such, you cannot set a breakpoint on
!      those calls, nor can you change the behavior of the functions by
!      linking with a different library.  In addition, when a function is
!      recognized as a built-in function, GCC may use information about
!      that function to warn about problems with calls to that function,
!      or to generate more efficient code, even if the resulting code
!      still contains calls to that function.  For example, warnings are
!      given with `-Wformat' for bad calls to `printf' when `printf' is
!      built in and `strlen' is known not to modify global memory.
  
!      With the `-fno-builtin-FUNCTION' option only the built-in function
!      FUNCTION is disabled.  FUNCTION must not begin with `__builtin_'.
!      If a function is named that is not built-in in this version of
!      GCC, this option is ignored.  There is no corresponding
!      `-fbuiltin-FUNCTION' option; if you wish to enable built-in
!      functions selectively when using `-fno-builtin' or
!      `-ffreestanding', you may define macros such as:
  
            #define abs(n)          __builtin_abs ((n))
            #define strcpy(d, s)    __builtin_strcpy ((d), (s))
  
! `-fhosted'
       Assert that compilation targets a hosted environment.  This implies
!      `-fbuiltin'.  A hosted environment is one in which the entire
!      standard library is available, and in which `main' has a return
!      type of `int'.  Examples are nearly everything except a kernel.
!      This is equivalent to `-fno-freestanding'.
  
- `-ffreestanding'
       Assert that compilation targets a freestanding environment.  This
!      implies `-fno-builtin'.  A freestanding environment is one in
!      which the standard library may not exist, and program startup may
!      not necessarily be at `main'.  The most obvious example is an OS
!      kernel.  This is equivalent to `-fno-hosted'.
  
       *Note Language Standards Supported by GCC: Standards, for details
       of freestanding and hosted environments.
  
! `-fopenacc'
!      Enable handling of OpenACC directives `#pragma acc' in C/C++ and
!      `!$acc' in Fortran.  When `-fopenacc' is specified, the compiler
       generates accelerated code according to the OpenACC Application
!      Programming Interface v2.0 `http://www.openacc.org/'.  This option
!      implies `-pthread', and thus is only supported on targets that
!      have support for `-pthread'.
  
! `-fopenacc-dim=GEOM'
       Specify default compute dimensions for parallel offload regions
       that do not explicitly specify.  The GEOM value is a triple of
       ':'-separated sizes, in order 'gang', 'worker' and, 'vector'.  A
       size can be omitted, to use a target-specific default value.
  
! `-fopenmp'
!      Enable handling of OpenMP directives `#pragma omp' in C/C++ and
!      `!$omp' in Fortran.  When `-fopenmp' is specified, the compiler
!      generates parallel code according to the OpenMP Application
!      Program Interface v4.0 `http://www.openmp.org/'.  This option
!      implies `-pthread', and thus is only supported on targets that
!      have support for `-pthread'. `-fopenmp' implies `-fopenmp-simd'.
  
! `-fopenmp-simd'
!      Enable handling of OpenMP's SIMD directives with `#pragma omp' in
!      C/C++ and `!$omp' in Fortran. Other OpenMP directives are ignored.
  
! `-fcilkplus'
       Enable the usage of Cilk Plus language extension features for
!      C/C++.  When the option `-fcilkplus' is specified, enable the
!      usage of the Cilk Plus Language extension features for C/C++.  The
       present implementation follows ABI version 1.2.  This is an
       experimental feature that is only partially complete, and whose
       interface may change in future versions of GCC as the official
!      specification changes.  Currently, all features but `_Cilk_for'
       have been implemented.
  
! `-fgnu-tm'
!      When the option `-fgnu-tm' is specified, the compiler generates
       code for the Linux variant of Intel's current Transactional Memory
       ABI specification document (Revision 1.1, May 6 2009).  This is an
       experimental feature whose interface may change in future versions
--- 1935,2229 ----
  from C, such as C++, Objective-C and Objective-C++) that the compiler
  accepts:
  
! '-ansi'
!      In C mode, this is equivalent to '-std=c90'.  In C++ mode, it is
!      equivalent to '-std=c++98'.
  
       This turns off certain features of GCC that are incompatible with
!      ISO C90 (when compiling C code), or of standard C++ (when compiling
!      C++ code), such as the 'asm' and 'typeof' keywords, and predefined
!      macros such as 'unix' and 'vax' that identify the type of system
!      you are using.  It also enables the undesirable and rarely used ISO
!      trigraph feature.  For the C compiler, it disables recognition of
!      C++ style '//' comments as well as the 'inline' keyword.
  
!      The alternate keywords '__asm__', '__extension__', '__inline__' and
!      '__typeof__' continue to work despite '-ansi'.  You would not want
!      to use them in an ISO C program, of course, but it is useful to put
!      them in header files that might be included in compilations done
!      with '-ansi'.  Alternate predefined macros such as '__unix__' and
!      '__vax__' are also available, with or without '-ansi'.
  
!      The '-ansi' option does not cause non-ISO programs to be rejected
!      gratuitously.  For that, '-Wpedantic' is required in addition to
!      '-ansi'.  *Note Warning Options::.
  
!      The macro '__STRICT_ANSI__' is predefined when the '-ansi' option
       is used.  Some header files may notice this macro and refrain from
!      declaring certain functions or defining certain macros that the ISO
!      standard doesn't call for; this is to avoid interfering with any
!      programs that might use these names for other things.
  
       Functions that are normally built in but do not have semantics
!      defined by ISO C (such as 'alloca' and 'ffs') are not built-in
!      functions when '-ansi' is used.  *Note Other built-in functions
       provided by GCC: Other Builtins, for details of the functions
       affected.
  
! '-std='
!      Determine the language standard.  *Note Language Standards
       Supported by GCC: Standards, for details of these standard
!      versions.  This option is currently only supported when compiling C
!      or C++.
  
!      The compiler can accept several base standards, such as 'c90' or
!      'c++98', and GNU dialects of those standards, such as 'gnu90' or
!      'gnu++98'.  When a base standard is specified, the compiler accepts
!      all programs following that standard plus those using GNU
!      extensions that do not contradict it.  For example, '-std=c90'
       turns off certain features of GCC that are incompatible with ISO
!      C90, such as the 'asm' and 'typeof' keywords, but not other GNU
       extensions that do not have a meaning in ISO C90, such as omitting
!      the middle term of a '?:' expression.  On the other hand, when a
       GNU dialect of a standard is specified, all features supported by
       the compiler are enabled, even when those features change the
       meaning of the base standard.  As a result, some strict-conforming
       programs may be rejected.  The particular standard is used by
!      '-Wpedantic' to identify which features are GNU extensions given
!      that version of the standard.  For example '-std=gnu90 -Wpedantic'
!      warns about C++ style '//' comments, while '-std=gnu99 -Wpedantic'
       does not.
  
       A value for this option must be provided; possible values are
  
!      'c90'
!      'c89'
!      'iso9899:1990'
            Support all ISO C90 programs (certain GNU extensions that
!           conflict with ISO C90 are disabled).  Same as '-ansi' for C
            code.
  
!      'iso9899:199409'
            ISO C90 as modified in amendment 1.
  
!      'c99'
!      'c9x'
!      'iso9899:1999'
!      'iso9899:199x'
!           ISO C99.  This standard is substantially completely supported,
!           modulo bugs and floating-point issues (mainly but not entirely
!           relating to optional C99 features from Annexes F and G). See
!           <http://gcc.gnu.org/c99status.html> for more information.  The
!           names 'c9x' and 'iso9899:199x' are deprecated.
  
!      'c11'
!      'c1x'
!      'iso9899:2011'
            ISO C11, the 2011 revision of the ISO C standard.  This
            standard is substantially completely supported, modulo bugs,
            floating-point issues (mainly but not entirely relating to
            optional C11 features from Annexes F and G) and the optional
            Annexes K (Bounds-checking interfaces) and L (Analyzability).
!           The name 'c1x' is deprecated.
  
!      'gnu90'
!      'gnu89'
            GNU dialect of ISO C90 (including some C99 features).
  
!      'gnu99'
!      'gnu9x'
!           GNU dialect of ISO C99.  The name 'gnu9x' is deprecated.
  
!      'gnu11'
!      'gnu1x'
            GNU dialect of ISO C11.  This is the default for C code.  The
!           name 'gnu1x' is deprecated.
  
!      'c++98'
!      'c++03'
            The 1998 ISO C++ standard plus the 2003 technical corrigendum
!           and some additional defect reports.  Same as '-ansi' for C++
            code.
  
!      'gnu++98'
!      'gnu++03'
!           GNU dialect of '-std=c++98'.
  
!      'c++11'
!      'c++0x'
!           The 2011 ISO C++ standard plus amendments.  The name 'c++0x'
            is deprecated.
  
!      'gnu++11'
!      'gnu++0x'
!           GNU dialect of '-std=c++11'.  The name 'gnu++0x' is
            deprecated.
  
!      'c++14'
!      'c++1y'
!           The 2014 ISO C++ standard plus amendments.  The name 'c++1y'
            is deprecated.
  
!      'gnu++14'
!      'gnu++1y'
!           GNU dialect of '-std=c++14'.  This is the default for C++
!           code.  The name 'gnu++1y' is deprecated.
  
!      'c++1z'
!           The next revision of the ISO C++ standard, tentatively planned
!           for 2017.  Support is highly experimental, and will almost
!           certainly change in incompatible ways in future releases.
  
!      'gnu++1z'
!           GNU dialect of '-std=c++1z'.  Support is highly experimental,
            and will almost certainly change in incompatible ways in
            future releases.
  
! '-fgnu89-inline'
!      The option '-fgnu89-inline' tells GCC to use the traditional GNU
!      semantics for 'inline' functions when in C99 mode.  *Note An Inline
!      Function is As Fast As a Macro: Inline.  Using this option is
!      roughly equivalent to adding the 'gnu_inline' function attribute to
!      all inline functions (*note Function Attributes::).
  
!      The option '-fno-gnu89-inline' explicitly tells GCC to use the C99
!      semantics for 'inline' when in C99 or gnu99 mode (i.e., it
       specifies the default behavior).  This option is not supported in
!      '-std=c90' or '-std=gnu90' mode.
  
!      The preprocessor macros '__GNUC_GNU_INLINE__' and
!      '__GNUC_STDC_INLINE__' may be used to check which semantics are in
!      effect for 'inline' functions.  *Note (cpp)Common Predefined
!      Macros::.
  
! '-aux-info FILENAME'
       Output to the given filename prototyped declarations for all
       functions declared and/or defined in a translation unit, including
       those in header files.  This option is silently ignored in any
       language other than C.
  
       Besides declarations, the file indicates, in comments, the origin
!      of each declaration (source file and line), whether the declaration
!      was implicit, prototyped or unprototyped ('I', 'N' for new or 'O'
!      for old, respectively, in the first character after the line number
!      and the colon), and whether it came from a declaration or a
!      definition ('C' or 'F', respectively, in the following character).
!      In the case of function definitions, a K&R-style list of arguments
!      followed by their declarations is also provided, inside comments,
!      after the declaration.
  
! '-fallow-parameterless-variadic-functions'
       Accept variadic functions without named parameters.
  
       Although it is possible to define such a function, this is not very
       useful as it is not possible to read the arguments.  This is only
       supported for C as this construct is allowed by C++.
  
! '-fno-asm'
!      Do not recognize 'asm', 'inline' or 'typeof' as a keyword, so that
       code can use these words as identifiers.  You can use the keywords
!      '__asm__', '__inline__' and '__typeof__' instead.  '-ansi' implies
!      '-fno-asm'.
  
!      In C++, this switch only affects the 'typeof' keyword, since 'asm'
!      and 'inline' are standard keywords.  You may want to use the
!      '-fno-gnu-keywords' flag instead, which has the same effect.  In
!      C99 mode ('-std=c99' or '-std=gnu99'), this switch only affects the
!      'asm' and 'typeof' keywords, since 'inline' is a standard keyword
!      in ISO C99.
  
! '-fno-builtin'
! '-fno-builtin-FUNCTION'
       Don't recognize built-in functions that do not begin with
!      '__builtin_' as prefix.  *Note Other built-in functions provided by
!      GCC: Other Builtins, for details of the functions affected,
!      including those which are not built-in functions when '-ansi' or
!      '-std' options for strict ISO C conformance are used because they
       do not have an ISO standard meaning.
  
       GCC normally generates special code to handle certain built-in
!      functions more efficiently; for instance, calls to 'alloca' may
       become single instructions which adjust the stack directly, and
!      calls to 'memcpy' may become inline copy loops.  The resulting code
!      is often both smaller and faster, but since the function calls no
!      longer appear as such, you cannot set a breakpoint on those calls,
!      nor can you change the behavior of the functions by linking with a
!      different library.  In addition, when a function is recognized as a
!      built-in function, GCC may use information about that function to
!      warn about problems with calls to that function, or to generate
!      more efficient code, even if the resulting code still contains
!      calls to that function.  For example, warnings are given with
!      '-Wformat' for bad calls to 'printf' when 'printf' is built in and
!      'strlen' is known not to modify global memory.
  
!      With the '-fno-builtin-FUNCTION' option only the built-in function
!      FUNCTION is disabled.  FUNCTION must not begin with '__builtin_'.
!      If a function is named that is not built-in in this version of GCC,
!      this option is ignored.  There is no corresponding
!      '-fbuiltin-FUNCTION' option; if you wish to enable built-in
!      functions selectively when using '-fno-builtin' or
!      '-ffreestanding', you may define macros such as:
  
            #define abs(n)          __builtin_abs ((n))
            #define strcpy(d, s)    __builtin_strcpy ((d), (s))
  
! '-fhosted'
! 
       Assert that compilation targets a hosted environment.  This implies
!      '-fbuiltin'.  A hosted environment is one in which the entire
!      standard library is available, and in which 'main' has a return
!      type of 'int'.  Examples are nearly everything except a kernel.
!      This is equivalent to '-fno-freestanding'.
! 
! '-ffreestanding'
  
       Assert that compilation targets a freestanding environment.  This
!      implies '-fno-builtin'.  A freestanding environment is one in which
!      the standard library may not exist, and program startup may not
!      necessarily be at 'main'.  The most obvious example is an OS
!      kernel.  This is equivalent to '-fno-hosted'.
  
       *Note Language Standards Supported by GCC: Standards, for details
       of freestanding and hosted environments.
  
! '-fopenacc'
!      Enable handling of OpenACC directives '#pragma acc' in C/C++ and
!      '!$acc' in Fortran.  When '-fopenacc' is specified, the compiler
       generates accelerated code according to the OpenACC Application
!      Programming Interface v2.0 <http://www.openacc.org/>.  This option
!      implies '-pthread', and thus is only supported on targets that have
!      support for '-pthread'.
  
! '-fopenacc-dim=GEOM'
       Specify default compute dimensions for parallel offload regions
       that do not explicitly specify.  The GEOM value is a triple of
       ':'-separated sizes, in order 'gang', 'worker' and, 'vector'.  A
       size can be omitted, to use a target-specific default value.
  
! '-fopenmp'
!      Enable handling of OpenMP directives '#pragma omp' in C/C++ and
!      '!$omp' in Fortran.  When '-fopenmp' is specified, the compiler
!      generates parallel code according to the OpenMP Application Program
!      Interface v4.0 <http://www.openmp.org/>.  This option implies
!      '-pthread', and thus is only supported on targets that have support
!      for '-pthread'.  '-fopenmp' implies '-fopenmp-simd'.
  
! '-fopenmp-simd'
!      Enable handling of OpenMP's SIMD directives with '#pragma omp' in
!      C/C++ and '!$omp' in Fortran.  Other OpenMP directives are ignored.
  
! '-fcilkplus'
       Enable the usage of Cilk Plus language extension features for
!      C/C++.  When the option '-fcilkplus' is specified, enable the usage
!      of the Cilk Plus Language extension features for C/C++.  The
       present implementation follows ABI version 1.2.  This is an
       experimental feature that is only partially complete, and whose
       interface may change in future versions of GCC as the official
!      specification changes.  Currently, all features but '_Cilk_for'
       have been implemented.
  
! '-fgnu-tm'
!      When the option '-fgnu-tm' is specified, the compiler generates
       code for the Linux variant of Intel's current Transactional Memory
       ABI specification document (Revision 1.1, May 6 2009).  This is an
       experimental feature whose interface may change in future versions
*************** accepts:
*** 2241,2249 ****
       libitm.
  
       Note that the transactional memory feature is not supported with
!      non-call exceptions (`-fnon-call-exceptions').
  
! `-fms-extensions'
       Accept some non-standard constructs used in Microsoft header files.
  
       In C++ code, this allows member names in structures to be similar
--- 2235,2243 ----
       libitm.
  
       Note that the transactional memory feature is not supported with
!      non-call exceptions ('-fnon-call-exceptions').
  
! '-fms-extensions'
       Accept some non-standard constructs used in Microsoft header files.
  
       In C++ code, this allows member names in structures to be similar
*************** accepts:
*** 2261,2339 ****
       Note that this option is off for all targets but x86 targets using
       ms-abi.
  
! `-fplan9-extensions'
       Accept some non-standard constructs used in Plan 9 code.
  
!      This enables `-fms-extensions', permits passing pointers to
       structures with anonymous fields to functions that expect pointers
       to elements of the type of the field, and permits referring to
       anonymous fields declared using a typedef.  *Note Unnamed
       struct/union fields within structs/unions: Unnamed Fields, for
       details.  This is only supported for C, not C++.
  
! `-trigraphs'
!      Support ISO C trigraphs.  The `-ansi' option (and `-std' options
!      for strict ISO C conformance) implies `-trigraphs'.
  
! `-traditional'
! `-traditional-cpp'
       Formerly, these options caused GCC to attempt to emulate a
!      pre-standard C compiler.  They are now only supported with the
!      `-E' switch.  The preprocessor continues to support a pre-standard
!      mode.  See the GNU CPP manual for details.
  
! `-fcond-mismatch'
       Allow conditional expressions with mismatched types in the second
       and third arguments.  The value of such an expression is void.
       This option is not supported for C++.
  
! `-flax-vector-conversions'
       Allow implicit conversions between vectors with differing numbers
       of elements and/or incompatible element types.  This option should
       not be used for new code.
  
! `-funsigned-char'
!      Let the type `char' be unsigned, like `unsigned char'.
  
!      Each kind of machine has a default for what `char' should be.  It
!      is either like `unsigned char' by default or like `signed char' by
       default.
  
!      Ideally, a portable program should always use `signed char' or
!      `unsigned char' when it depends on the signedness of an object.
!      But many programs have been written to use plain `char' and expect
       it to be signed, or expect it to be unsigned, depending on the
       machines they were written for.  This option, and its inverse, let
       you make such a program work with the opposite default.
  
!      The type `char' is always a distinct type from each of `signed
!      char' or `unsigned char', even though its behavior is always just
       like one of those two.
  
! `-fsigned-char'
!      Let the type `char' be signed, like `signed char'.
  
!      Note that this is equivalent to `-fno-unsigned-char', which is the
!      negative form of `-funsigned-char'.  Likewise, the option
!      `-fno-signed-char' is equivalent to `-funsigned-char'.
  
! `-fsigned-bitfields'
! `-funsigned-bitfields'
! `-fno-signed-bitfields'
! `-fno-unsigned-bitfields'
       These options control whether a bit-field is signed or unsigned,
!      when the declaration does not use either `signed' or `unsigned'.
!      By default, such a bit-field is signed, because this is
!      consistent: the basic integer types such as `int' are signed types.
  
! `-fsso-struct=ENDIANNESS'
       Set the default scalar storage order of structures and unions to
!      the specified endianness.  The accepted values are `big-endian' and
!      `little-endian'.  If the option is not passed, the compiler uses
       the native endianness of the target.  This option is not supported
       for C++.
  
!      *Warning:* the `-fsso-struct' switch causes GCC to generate code
       that is not binary compatible with code generated without it if the
       specified endianness is not the native endianness of the target.
  
--- 2255,2333 ----
       Note that this option is off for all targets but x86 targets using
       ms-abi.
  
! '-fplan9-extensions'
       Accept some non-standard constructs used in Plan 9 code.
  
!      This enables '-fms-extensions', permits passing pointers to
       structures with anonymous fields to functions that expect pointers
       to elements of the type of the field, and permits referring to
       anonymous fields declared using a typedef.  *Note Unnamed
       struct/union fields within structs/unions: Unnamed Fields, for
       details.  This is only supported for C, not C++.
  
! '-trigraphs'
!      Support ISO C trigraphs.  The '-ansi' option (and '-std' options
!      for strict ISO C conformance) implies '-trigraphs'.
  
! '-traditional'
! '-traditional-cpp'
       Formerly, these options caused GCC to attempt to emulate a
!      pre-standard C compiler.  They are now only supported with the '-E'
!      switch.  The preprocessor continues to support a pre-standard mode.
!      See the GNU CPP manual for details.
  
! '-fcond-mismatch'
       Allow conditional expressions with mismatched types in the second
       and third arguments.  The value of such an expression is void.
       This option is not supported for C++.
  
! '-flax-vector-conversions'
       Allow implicit conversions between vectors with differing numbers
       of elements and/or incompatible element types.  This option should
       not be used for new code.
  
! '-funsigned-char'
!      Let the type 'char' be unsigned, like 'unsigned char'.
  
!      Each kind of machine has a default for what 'char' should be.  It
!      is either like 'unsigned char' by default or like 'signed char' by
       default.
  
!      Ideally, a portable program should always use 'signed char' or
!      'unsigned char' when it depends on the signedness of an object.
!      But many programs have been written to use plain 'char' and expect
       it to be signed, or expect it to be unsigned, depending on the
       machines they were written for.  This option, and its inverse, let
       you make such a program work with the opposite default.
  
!      The type 'char' is always a distinct type from each of 'signed
!      char' or 'unsigned char', even though its behavior is always just
       like one of those two.
  
! '-fsigned-char'
!      Let the type 'char' be signed, like 'signed char'.
  
!      Note that this is equivalent to '-fno-unsigned-char', which is the
!      negative form of '-funsigned-char'.  Likewise, the option
!      '-fno-signed-char' is equivalent to '-funsigned-char'.
  
! '-fsigned-bitfields'
! '-funsigned-bitfields'
! '-fno-signed-bitfields'
! '-fno-unsigned-bitfields'
       These options control whether a bit-field is signed or unsigned,
!      when the declaration does not use either 'signed' or 'unsigned'.
!      By default, such a bit-field is signed, because this is consistent:
!      the basic integer types such as 'int' are signed types.
  
! '-fsso-struct=ENDIANNESS'
       Set the default scalar storage order of structures and unions to
!      the specified endianness.  The accepted values are 'big-endian' and
!      'little-endian'.  If the option is not passed, the compiler uses
       the native endianness of the target.  This option is not supported
       for C++.
  
!      *Warning:* the '-fsso-struct' switch causes GCC to generate code
       that is not binary compatible with code generated without it if the
       specified endianness is not the native endianness of the target.
  
*************** File: gcc.info,  Node: C++ Dialect Optio
*** 2346,2366 ****
  This section describes the command-line options that are only meaningful
  for C++ programs.  You can also use most of the GNU compiler options
  regardless of what language your program is in.  For example, you might
! compile a file `firstClass.C' like this:
  
       g++ -g -fstrict-enums -O -c firstClass.C
  
! In this example, only `-fstrict-enums' is an option meant only for C++
  programs; you can use the other options with any language supported by
  GCC.
  
!  Some options for compiling C programs, such as `-std', are also
  relevant for C++ programs.  *Note Options Controlling C Dialect: C
  Dialect Options.
  
   Here is a list of options that are _only_ for compiling C++ programs:
  
! `-fabi-version=N'
       Use version N of the C++ ABI.  The default is version 0.
  
       Version 0 refers to the version conforming most closely to the C++
--- 2340,2360 ----
  This section describes the command-line options that are only meaningful
  for C++ programs.  You can also use most of the GNU compiler options
  regardless of what language your program is in.  For example, you might
! compile a file 'firstClass.C' like this:
  
       g++ -g -fstrict-enums -O -c firstClass.C
  
! In this example, only '-fstrict-enums' is an option meant only for C++
  programs; you can use the other options with any language supported by
  GCC.
  
!  Some options for compiling C programs, such as '-std', are also
  relevant for C++ programs.  *Note Options Controlling C Dialect: C
  Dialect Options.
  
   Here is a list of options that are _only_ for compiling C++ programs:
  
! '-fabi-version=N'
       Use version N of the C++ ABI.  The default is version 0.
  
       Version 0 refers to the version conforming most closely to the C++
*************** Dialect Options.
*** 2398,2457 ****
       function-cv-qualifiers.
  
       Version 9, which first appeared in G++ 5.2, corrects the alignment
!      of `nullptr_t'.
  
       Version 10, which first appeared in G++ 6.1, adds mangling of
       attributes that affect type identity, such as ia32 calling
!      convention attributes (e.g. `stdcall').
  
!      See also `-Wabi'.
  
! `-fabi-compat-version=N'
       On targets that support strong aliases, G++ works around mangling
       changes by creating an alias with the correct mangled name when
       defining a symbol with an incorrect mangled name.  This switch
       specifies which ABI version to use for the alias.
  
!      With `-fabi-version=0' (the default), this defaults to 8 (GCC 5
       compatibility).  If another ABI version is explicitly selected,
       this defaults to 0.  For compatibility with GCC versions 3.2
!      through 4.9, use `-fabi-compat-version=2'.
  
!      If this option is not provided but `-Wabi=N' is, that version is
       used for compatibility aliases.  If this option is provided along
!      with `-Wabi' (without the version), the version from this option
!      is used for the warning.
  
! `-fno-access-control'
       Turn off all access checking.  This switch is mainly useful for
       working around bugs in the access control code.
  
! `-fcheck-new'
!      Check that the pointer returned by `operator new' is non-null
       before attempting to modify the storage allocated.  This check is
       normally unnecessary because the C++ standard specifies that
!      `operator new' only returns `0' if it is declared `throw()', in
!      which case the compiler always checks the return value even
!      without this option.  In all other cases, when `operator new' has
!      a non-empty exception specification, memory exhaustion is
!      signalled by throwing `std::bad_alloc'.  See also `new (nothrow)'.
  
! `-fconcepts'
       Enable support for the C++ Extensions for Concepts Technical
       Specification, ISO 19217 (2015), which allows code like
  
            template <class T> concept bool Addable = requires (T t) { t + t; };
            template <Addable T> T add (T a, T b) { return a + b; }
  
! `-fconstexpr-depth=N'
       Set the maximum nested evaluation depth for C++11 constexpr
       functions to N.  A limit is needed to detect endless recursion
       during constant expression evaluation.  The minimum specified by
       the standard is 512.
  
! `-fdeduce-init-list'
       Enable deduction of a template type parameter as
!      `std::initializer_list' from a brace-enclosed initializer list,
       i.e.
  
            template <class T> auto forward(T t) -> decltype (realfn (t))
--- 2392,2451 ----
       function-cv-qualifiers.
  
       Version 9, which first appeared in G++ 5.2, corrects the alignment
!      of 'nullptr_t'.
  
       Version 10, which first appeared in G++ 6.1, adds mangling of
       attributes that affect type identity, such as ia32 calling
!      convention attributes (e.g.  'stdcall').
  
!      See also '-Wabi'.
  
! '-fabi-compat-version=N'
       On targets that support strong aliases, G++ works around mangling
       changes by creating an alias with the correct mangled name when
       defining a symbol with an incorrect mangled name.  This switch
       specifies which ABI version to use for the alias.
  
!      With '-fabi-version=0' (the default), this defaults to 8 (GCC 5
       compatibility).  If another ABI version is explicitly selected,
       this defaults to 0.  For compatibility with GCC versions 3.2
!      through 4.9, use '-fabi-compat-version=2'.
  
!      If this option is not provided but '-Wabi=N' is, that version is
       used for compatibility aliases.  If this option is provided along
!      with '-Wabi' (without the version), the version from this option is
!      used for the warning.
  
! '-fno-access-control'
       Turn off all access checking.  This switch is mainly useful for
       working around bugs in the access control code.
  
! '-fcheck-new'
!      Check that the pointer returned by 'operator new' is non-null
       before attempting to modify the storage allocated.  This check is
       normally unnecessary because the C++ standard specifies that
!      'operator new' only returns '0' if it is declared 'throw()', in
!      which case the compiler always checks the return value even without
!      this option.  In all other cases, when 'operator new' has a
!      non-empty exception specification, memory exhaustion is signalled
!      by throwing 'std::bad_alloc'.  See also 'new (nothrow)'.
  
! '-fconcepts'
       Enable support for the C++ Extensions for Concepts Technical
       Specification, ISO 19217 (2015), which allows code like
  
            template <class T> concept bool Addable = requires (T t) { t + t; };
            template <Addable T> T add (T a, T b) { return a + b; }
  
! '-fconstexpr-depth=N'
       Set the maximum nested evaluation depth for C++11 constexpr
       functions to N.  A limit is needed to detect endless recursion
       during constant expression evaluation.  The minimum specified by
       the standard is 512.
  
! '-fdeduce-init-list'
       Enable deduction of a template type parameter as
!      'std::initializer_list' from a brace-enclosed initializer list,
       i.e.
  
            template <class T> auto forward(T t) -> decltype (realfn (t))
*************** Dialect Options.
*** 2470,2529 ****
       option is deprecated, and may be removed in a future version of
       G++.
  
! `-ffriend-injection'
       Inject friend functions into the enclosing namespace, so that they
       are visible outside the scope of the class in which they are
!      declared.  Friend functions were documented to work this way in
!      the old Annotated C++ Reference Manual.  However, in ISO C++ a
!      friend function that is not declared in an enclosing scope can
!      only be found using argument dependent lookup.  GCC defaults to
!      the standard behavior.
  
       This option is for compatibility, and may be removed in a future
       release of G++.
  
! `-fno-elide-constructors'
       The C++ standard allows an implementation to omit creating a
       temporary that is only used to initialize another object of the
       same type.  Specifying this option disables that optimization, and
       forces G++ to call the copy constructor in all cases.
  
! `-fno-enforce-eh-specs'
       Don't generate code to check for violation of exception
!      specifications at run time.  This option violates the C++
!      standard, but may be useful for reducing code size in production
!      builds, much like defining `NDEBUG'.  This does not give user code
!      permission to throw exceptions in violation of the exception
!      specifications; the compiler still optimizes based on the
!      specifications, so throwing an unexpected exception results in
!      undefined behavior at run time.
  
! `-fextern-tls-init'
! `-fno-extern-tls-init'
!      The C++11 and OpenMP standards allow `thread_local' and
!      `threadprivate' variables to have dynamic (runtime)
!      initialization.  To support this, any use of such a variable goes
!      through a wrapper function that performs any necessary
!      initialization.  When the use and definition of the variable are
!      in the same translation unit, this overhead can be optimized away,
!      but when the use is in a different translation unit there is
!      significant overhead even if the variable doesn't actually need
!      dynamic initialization.  If the programmer can be sure that no use
!      of the variable in a non-defining TU needs to trigger dynamic
!      initialization (either because the variable is statically
!      initialized, or a use of the variable in the defining TU will be
!      executed before any uses in another TU), they can avoid this
!      overhead with the `-fno-extern-tls-init' option.
  
       On targets that support symbol aliases, the default is
!      `-fextern-tls-init'.  On targets that do not support symbol
!      aliases, the default is `-fno-extern-tls-init'.
  
! `-ffor-scope'
! `-fno-for-scope'
!      If `-ffor-scope' is specified, the scope of variables declared in
!      a for-init-statement is limited to the `for' loop itself, as
!      specified by the C++ standard.  If `-fno-for-scope' is specified,
       the scope of variables declared in a for-init-statement extends to
       the end of the enclosing scope, as was the case in old versions of
       G++, and other (traditional) implementations of C++.
--- 2464,2522 ----
       option is deprecated, and may be removed in a future version of
       G++.
  
! '-ffriend-injection'
       Inject friend functions into the enclosing namespace, so that they
       are visible outside the scope of the class in which they are
!      declared.  Friend functions were documented to work this way in the
!      old Annotated C++ Reference Manual.  However, in ISO C++ a friend
!      function that is not declared in an enclosing scope can only be
!      found using argument dependent lookup.  GCC defaults to the
!      standard behavior.
  
       This option is for compatibility, and may be removed in a future
       release of G++.
  
! '-fno-elide-constructors'
       The C++ standard allows an implementation to omit creating a
       temporary that is only used to initialize another object of the
       same type.  Specifying this option disables that optimization, and
       forces G++ to call the copy constructor in all cases.
  
! '-fno-enforce-eh-specs'
       Don't generate code to check for violation of exception
!      specifications at run time.  This option violates the C++ standard,
!      but may be useful for reducing code size in production builds, much
!      like defining 'NDEBUG'.  This does not give user code permission to
!      throw exceptions in violation of the exception specifications; the
!      compiler still optimizes based on the specifications, so throwing
!      an unexpected exception results in undefined behavior at run time.
  
! '-fextern-tls-init'
! '-fno-extern-tls-init'
!      The C++11 and OpenMP standards allow 'thread_local' and
!      'threadprivate' variables to have dynamic (runtime) initialization.
!      To support this, any use of such a variable goes through a wrapper
!      function that performs any necessary initialization.  When the use
!      and definition of the variable are in the same translation unit,
!      this overhead can be optimized away, but when the use is in a
!      different translation unit there is significant overhead even if
!      the variable doesn't actually need dynamic initialization.  If the
!      programmer can be sure that no use of the variable in a
!      non-defining TU needs to trigger dynamic initialization (either
!      because the variable is statically initialized, or a use of the
!      variable in the defining TU will be executed before any uses in
!      another TU), they can avoid this overhead with the
!      '-fno-extern-tls-init' option.
  
       On targets that support symbol aliases, the default is
!      '-fextern-tls-init'.  On targets that do not support symbol
!      aliases, the default is '-fno-extern-tls-init'.
  
! '-ffor-scope'
! '-fno-for-scope'
!      If '-ffor-scope' is specified, the scope of variables declared in a
!      for-init-statement is limited to the 'for' loop itself, as
!      specified by the C++ standard.  If '-fno-for-scope' is specified,
       the scope of variables declared in a for-init-statement extends to
       the end of the enclosing scope, as was the case in old versions of
       G++, and other (traditional) implementations of C++.
*************** Dialect Options.
*** 2532,2682 ****
       but to allow and give a warning for old-style code that would
       otherwise be invalid, or have different behavior.
  
! `-fno-gnu-keywords'
!      Do not recognize `typeof' as a keyword, so that code can use this
!      word as an identifier.  You can use the keyword `__typeof__'
       instead.  This option is implied by the strict ISO C++ dialects:
!      `-ansi', `-std=c++98', `-std=c++11', etc.
  
! `-fno-implicit-templates'
       Never emit code for non-inline templates that are instantiated
       implicitly (i.e. by use); only emit code for explicit
       instantiations.  *Note Template Instantiation::, for more
       information.
  
! `-fno-implicit-inline-templates'
       Don't emit code for implicit instantiations of inline templates,
       either.  The default is to handle inlines differently so that
       compiles with and without optimization need the same set of
       explicit instantiations.
  
! `-fno-implement-inlines'
       To save space, do not emit out-of-line copies of inline functions
!      controlled by `#pragma implementation'.  This causes linker errors
       if these functions are not inlined everywhere they are called.
  
! `-fms-extensions'
       Disable Wpedantic warnings about constructs used in MFC, such as
       implicit int and getting a pointer to member function via
       non-standard syntax.
  
! `-fno-nonansi-builtins'
       Disable built-in declarations of functions that are not mandated by
!      ANSI/ISO C.  These include `ffs', `alloca', `_exit', `index',
!      `bzero', `conjf', and other related functions.
  
! `-fnothrow-opt'
!      Treat a `throw()' exception specification as if it were a
!      `noexcept' specification to reduce or eliminate the text size
       overhead relative to a function with no exception specification.
       If the function has local variables of types with non-trivial
       destructors, the exception specification actually makes the
       function smaller because the EH cleanups for those variables can be
       optimized away.  The semantic effect is that an exception thrown
!      out of a function with such an exception specification results in
!      a call to `terminate' rather than `unexpected'.
  
! `-fno-operator-names'
!      Do not treat the operator name keywords `and', `bitand', `bitor',
!      `compl', `not', `or' and `xor' as synonyms as keywords.
  
! `-fno-optional-diags'
!      Disable diagnostics that the standard says a compiler does not
!      need to issue.  Currently, the only such diagnostic issued by G++
!      is the one for a name having multiple meanings within a class.
  
! `-fpermissive'
       Downgrade some diagnostics about nonconformant code from errors to
!      warnings.  Thus, using `-fpermissive' allows some nonconforming
       code to compile.
  
! `-fno-pretty-templates'
       When an error message refers to a specialization of a function
       template, the compiler normally prints the signature of the
       template followed by the template arguments and any typedefs or
!      typenames in the signature (e.g. `void f(T) [with T = int]' rather
!      than `void f(int)') so that it's clear which template is involved.
       When an error message refers to a specialization of a class
       template, the compiler omits any template arguments that match the
       default template arguments for that template.  If either of these
       behaviors make it harder to understand the error message rather
!      than easier, you can use `-fno-pretty-templates' to disable them.
  
! `-frepo'
       Enable automatic template instantiation at link time.  This option
!      also implies `-fno-implicit-templates'.  *Note Template
       Instantiation::, for more information.
  
! `-fno-rtti'
       Disable generation of information about every class with virtual
       functions for use by the C++ run-time type identification features
!      (`dynamic_cast' and `typeid').  If you don't use those parts of
!      the language, you can save some space by using this flag.  Note
!      that exception handling uses the same information, but G++
!      generates it as needed. The `dynamic_cast' operator can still be
!      used for casts that do not require run-time type information, i.e.
!      casts to `void *' or to unambiguous base classes.
  
! `-fsized-deallocation'
       Enable the built-in global declarations
            void operator delete (void *, std::size_t) noexcept;
            void operator delete[] (void *, std::size_t) noexcept;
       as introduced in C++14.  This is useful for user-defined
       replacement deallocation functions that, for example, use the size
       of the object to make deallocation faster.  Enabled by default
!      under `-std=c++14' and above.  The flag `-Wsized-deallocation'
       warns about places that might want to add a definition.
  
! `-fstrict-enums'
       Allow the compiler to optimize using the assumption that a value of
       enumerated type can only be one of the values of the enumeration
       (as defined in the C++ standard; basically, a value that can be
       represented in the minimum number of bits needed to represent all
       the enumerators).  This assumption may not be valid if the program
!      uses a cast to convert an arbitrary integer value to the
!      enumerated type.
  
! `-ftemplate-backtrace-limit=N'
       Set the maximum number of template instantiation notes for a single
       warning or error to N.  The default value is 10.
  
! `-ftemplate-depth=N'
       Set the maximum instantiation depth for template classes to N.  A
       limit on the template instantiation depth is needed to detect
       endless recursions during template class instantiation.  ANSI/ISO
       C++ conforming programs must not rely on a maximum depth greater
       than 17 (changed to 1024 in C++11).  The default value is 900, as
!      the compiler can run out of stack space before hitting 1024 in
!      some situations.
  
! `-fno-threadsafe-statics'
       Do not emit the extra code to use the routines specified in the C++
       ABI for thread-safe initialization of local statics.  You can use
       this option to reduce code size slightly in code that doesn't need
       to be thread-safe.
  
! `-fuse-cxa-atexit'
       Register destructors for objects with static storage duration with
!      the `__cxa_atexit' function rather than the `atexit' function.
       This option is required for fully standards-compliant handling of
       static destructors, but only works if your C library supports
!      `__cxa_atexit'.
  
! `-fno-use-cxa-get-exception-ptr'
!      Don't use the `__cxa_get_exception_ptr' runtime routine.  This
!      causes `std::uncaught_exception' to be incorrect, but is necessary
       if the runtime routine is not available.
  
! `-fvisibility-inlines-hidden'
       This switch declares that the user does not attempt to compare
       pointers to inline functions or methods where the addresses of the
       two functions are taken in different shared objects.
  
       The effect of this is that GCC may, effectively, mark inline
!      methods with `__attribute__ ((visibility ("hidden")))' so that
!      they do not appear in the export table of a DSO and do not require
!      a PLT indirection when used within the DSO.  Enabling this option
!      can have a dramatic effect on load and link times of a DSO as it
       massively reduces the size of the dynamic export table when the
       library makes heavy use of templates.
  
--- 2525,2675 ----
       but to allow and give a warning for old-style code that would
       otherwise be invalid, or have different behavior.
  
! '-fno-gnu-keywords'
!      Do not recognize 'typeof' as a keyword, so that code can use this
!      word as an identifier.  You can use the keyword '__typeof__'
       instead.  This option is implied by the strict ISO C++ dialects:
!      '-ansi', '-std=c++98', '-std=c++11', etc.
  
! '-fno-implicit-templates'
       Never emit code for non-inline templates that are instantiated
       implicitly (i.e. by use); only emit code for explicit
       instantiations.  *Note Template Instantiation::, for more
       information.
  
! '-fno-implicit-inline-templates'
       Don't emit code for implicit instantiations of inline templates,
       either.  The default is to handle inlines differently so that
       compiles with and without optimization need the same set of
       explicit instantiations.
  
! '-fno-implement-inlines'
       To save space, do not emit out-of-line copies of inline functions
!      controlled by '#pragma implementation'.  This causes linker errors
       if these functions are not inlined everywhere they are called.
  
! '-fms-extensions'
       Disable Wpedantic warnings about constructs used in MFC, such as
       implicit int and getting a pointer to member function via
       non-standard syntax.
  
! '-fno-nonansi-builtins'
       Disable built-in declarations of functions that are not mandated by
!      ANSI/ISO C.  These include 'ffs', 'alloca', '_exit', 'index',
!      'bzero', 'conjf', and other related functions.
  
! '-fnothrow-opt'
!      Treat a 'throw()' exception specification as if it were a
!      'noexcept' specification to reduce or eliminate the text size
       overhead relative to a function with no exception specification.
       If the function has local variables of types with non-trivial
       destructors, the exception specification actually makes the
       function smaller because the EH cleanups for those variables can be
       optimized away.  The semantic effect is that an exception thrown
!      out of a function with such an exception specification results in a
!      call to 'terminate' rather than 'unexpected'.
  
! '-fno-operator-names'
!      Do not treat the operator name keywords 'and', 'bitand', 'bitor',
!      'compl', 'not', 'or' and 'xor' as synonyms as keywords.
  
! '-fno-optional-diags'
!      Disable diagnostics that the standard says a compiler does not need
!      to issue.  Currently, the only such diagnostic issued by G++ is the
!      one for a name having multiple meanings within a class.
  
! '-fpermissive'
       Downgrade some diagnostics about nonconformant code from errors to
!      warnings.  Thus, using '-fpermissive' allows some nonconforming
       code to compile.
  
! '-fno-pretty-templates'
       When an error message refers to a specialization of a function
       template, the compiler normally prints the signature of the
       template followed by the template arguments and any typedefs or
!      typenames in the signature (e.g.  'void f(T) [with T = int]' rather
!      than 'void f(int)') so that it's clear which template is involved.
       When an error message refers to a specialization of a class
       template, the compiler omits any template arguments that match the
       default template arguments for that template.  If either of these
       behaviors make it harder to understand the error message rather
!      than easier, you can use '-fno-pretty-templates' to disable them.
  
! '-frepo'
       Enable automatic template instantiation at link time.  This option
!      also implies '-fno-implicit-templates'.  *Note Template
       Instantiation::, for more information.
  
! '-fno-rtti'
       Disable generation of information about every class with virtual
       functions for use by the C++ run-time type identification features
!      ('dynamic_cast' and 'typeid').  If you don't use those parts of the
!      language, you can save some space by using this flag.  Note that
!      exception handling uses the same information, but G++ generates it
!      as needed.  The 'dynamic_cast' operator can still be used for casts
!      that do not require run-time type information, i.e. casts to 'void
!      *' or to unambiguous base classes.
  
! '-fsized-deallocation'
       Enable the built-in global declarations
            void operator delete (void *, std::size_t) noexcept;
            void operator delete[] (void *, std::size_t) noexcept;
       as introduced in C++14.  This is useful for user-defined
       replacement deallocation functions that, for example, use the size
       of the object to make deallocation faster.  Enabled by default
!      under '-std=c++14' and above.  The flag '-Wsized-deallocation'
       warns about places that might want to add a definition.
  
! '-fstrict-enums'
       Allow the compiler to optimize using the assumption that a value of
       enumerated type can only be one of the values of the enumeration
       (as defined in the C++ standard; basically, a value that can be
       represented in the minimum number of bits needed to represent all
       the enumerators).  This assumption may not be valid if the program
!      uses a cast to convert an arbitrary integer value to the enumerated
!      type.
  
! '-ftemplate-backtrace-limit=N'
       Set the maximum number of template instantiation notes for a single
       warning or error to N.  The default value is 10.
  
! '-ftemplate-depth=N'
       Set the maximum instantiation depth for template classes to N.  A
       limit on the template instantiation depth is needed to detect
       endless recursions during template class instantiation.  ANSI/ISO
       C++ conforming programs must not rely on a maximum depth greater
       than 17 (changed to 1024 in C++11).  The default value is 900, as
!      the compiler can run out of stack space before hitting 1024 in some
!      situations.
  
! '-fno-threadsafe-statics'
       Do not emit the extra code to use the routines specified in the C++
       ABI for thread-safe initialization of local statics.  You can use
       this option to reduce code size slightly in code that doesn't need
       to be thread-safe.
  
! '-fuse-cxa-atexit'
       Register destructors for objects with static storage duration with
!      the '__cxa_atexit' function rather than the 'atexit' function.
       This option is required for fully standards-compliant handling of
       static destructors, but only works if your C library supports
!      '__cxa_atexit'.
  
! '-fno-use-cxa-get-exception-ptr'
!      Don't use the '__cxa_get_exception_ptr' runtime routine.  This
!      causes 'std::uncaught_exception' to be incorrect, but is necessary
       if the runtime routine is not available.
  
! '-fvisibility-inlines-hidden'
       This switch declares that the user does not attempt to compare
       pointers to inline functions or methods where the addresses of the
       two functions are taken in different shared objects.
  
       The effect of this is that GCC may, effectively, mark inline
!      methods with '__attribute__ ((visibility ("hidden")))' so that they
!      do not appear in the export table of a DSO and do not require a PLT
!      indirection when used within the DSO.  Enabling this option can
!      have a dramatic effect on load and link times of a DSO as it
       massively reduces the size of the dynamic export table when the
       library makes heavy use of templates.
  
*************** Dialect Options.
*** 2695,2708 ****
       option as their linkage might otherwise cross a shared library
       boundary.  *Note Template Instantiation::.
  
! `-fvisibility-ms-compat'
       This flag attempts to use visibility settings to make GCC's C++
       linkage model compatible with that of Microsoft Visual Studio.
  
       The flag makes these changes to GCC's linkage model:
  
!        1. It sets the default visibility to `hidden', like
!           `-fvisibility=hidden'.
  
         2. Types, but not their members, are not hidden by default.
  
--- 2688,2701 ----
       option as their linkage might otherwise cross a shared library
       boundary.  *Note Template Instantiation::.
  
! '-fvisibility-ms-compat'
       This flag attempts to use visibility settings to make GCC's C++
       linkage model compatible with that of Microsoft Visual Studio.
  
       The flag makes these changes to GCC's linkage model:
  
!        1. It sets the default visibility to 'hidden', like
!           '-fvisibility=hidden'.
  
         2. Types, but not their members, are not hidden by default.
  
*************** Dialect Options.
*** 2711,2717 ****
            shared object: those declarations are permitted if they are
            permitted when this option is not used.
  
!      In new code it is better to use `-fvisibility=hidden' and export
       those classes that are intended to be externally visible.
       Unfortunately it is possible for code to rely, perhaps
       accidentally, on the Visual Studio behavior.
--- 2704,2710 ----
            shared object: those declarations are permitted if they are
            permitted when this option is not used.
  
!      In new code it is better to use '-fvisibility=hidden' and export
       those classes that are intended to be externally visible.
       Unfortunately it is possible for code to rely, perhaps
       accidentally, on the Visual Studio behavior.
*************** Dialect Options.
*** 2724,2762 ****
       given, it is a violation of the ODR to define types with the same
       name differently.
  
! `-fno-weak'
       Do not use weak symbol support, even if it is provided by the
       linker.  By default, G++ uses weak symbols if they are available.
       This option exists only for testing, and should not be used by
       end-users; it results in inferior code and has no benefits.  This
       option may be removed in a future release of G++.
  
! `-nostdinc++'
!      Do not search for header files in the standard directories
!      specific to C++, but do still search the other standard
!      directories.  (This option is used when building the C++ library.)
  
   In addition, these optimization, warning, and code generation options
  have meanings only for C++ programs:
  
! `-Wabi (C, Objective-C, C++ and Objective-C++ only)'
       Warn when G++ it generates code that is probably not compatible
       with the vendor-neutral C++ ABI.  Since G++ now defaults to
!      updating the ABI with each major release, normally `-Wabi' will
       warn only if there is a check added later in a release series for
!      an ABI issue discovered since the initial release.  `-Wabi' will
       warn about more things if an older ABI version is selected (with
!      `-fabi-version=N').
  
!      `-Wabi' can also be used with an explicit version number to warn
!      about compatibility with a particular `-fabi-version' level, e.g.
!      `-Wabi=2' to warn about changes relative to `-fabi-version=2'.
  
       If an explicit version number is provided and
!      `-fabi-compat-version' is not specified, the version number from
       this option is used for compatibility aliases.  If no explicit
       version number is provided with this option, but
!      `-fabi-compat-version' is specified, that version number is used
       for ABI warnings.
  
       Although an effort has been made to warn about all such cases,
--- 2717,2755 ----
       given, it is a violation of the ODR to define types with the same
       name differently.
  
! '-fno-weak'
       Do not use weak symbol support, even if it is provided by the
       linker.  By default, G++ uses weak symbols if they are available.
       This option exists only for testing, and should not be used by
       end-users; it results in inferior code and has no benefits.  This
       option may be removed in a future release of G++.
  
! '-nostdinc++'
!      Do not search for header files in the standard directories specific
!      to C++, but do still search the other standard directories.  (This
!      option is used when building the C++ library.)
  
   In addition, these optimization, warning, and code generation options
  have meanings only for C++ programs:
  
! '-Wabi (C, Objective-C, C++ and Objective-C++ only)'
       Warn when G++ it generates code that is probably not compatible
       with the vendor-neutral C++ ABI.  Since G++ now defaults to
!      updating the ABI with each major release, normally '-Wabi' will
       warn only if there is a check added later in a release series for
!      an ABI issue discovered since the initial release.  '-Wabi' will
       warn about more things if an older ABI version is selected (with
!      '-fabi-version=N').
  
!      '-Wabi' can also be used with an explicit version number to warn
!      about compatibility with a particular '-fabi-version' level, e.g.
!      '-Wabi=2' to warn about changes relative to '-fabi-version=2'.
  
       If an explicit version number is provided and
!      '-fabi-compat-version' is not specified, the version number from
       this option is used for compatibility aliases.  If no explicit
       version number is provided with this option, but
!      '-fabi-compat-version' is specified, that version number is used
       for ABI warnings.
  
       Although an effort has been made to warn about all such cases,
*************** have meanings only for C++ programs:
*** 2769,2776 ****
       concerned about the fact that code generated by G++ may not be
       binary compatible with code generated by other compilers.
  
!      Known incompatibilities in `-fabi-version=2' (which was the
!      default from GCC 3.4 to 4.9) include:
  
          * A template with a non-type template parameter of reference
            type was mangled incorrectly:
--- 2762,2769 ----
       concerned about the fact that code generated by G++ may not be
       binary compatible with code generated by other compilers.
  
!      Known incompatibilities in '-fabi-version=2' (which was the default
!      from GCC 3.4 to 4.9) include:
  
          * A template with a non-type template parameter of reference
            type was mangled incorrectly:
*************** have meanings only for C++ programs:
*** 2778,2876 ****
                 template <int &> struct S {};
                 void n (S<N>) {2}
  
!           This was fixed in `-fabi-version=3'.
  
!         * SIMD vector types declared using `__attribute
!           ((vector_size))' were mangled in a non-standard way that does
!           not allow for overloading of functions taking vectors of
!           different sizes.
  
!           The mangling was changed in `-fabi-version=4'.
  
!         * `__attribute ((const))' and `noreturn' were mangled as type
!           qualifiers, and `decltype' of a plain declaration was folded
            away.
  
!           These mangling issues were fixed in `-fabi-version=5'.
  
          * Scoped enumerators passed as arguments to a variadic function
!           are promoted like unscoped enumerators, causing `va_arg' to
            complain.  On most targets this does not actually affect the
            parameter passing ABI, as there is no way to pass an argument
!           smaller than `int'.
  
            Also, the ABI changed the mangling of template argument packs,
!           `const_cast', `static_cast', prefix increment/decrement, and
!           a class scope function used as a template argument.
  
!           These issues were corrected in `-fabi-version=6'.
  
          * Lambdas in default argument scope were mangled incorrectly,
!           and the ABI changed the mangling of `nullptr_t'.
  
!           These issues were corrected in `-fabi-version=7'.
  
          * When mangling a function type with function-cv-qualifiers, the
            un-qualified function type was incorrectly treated as a
            substitution candidate.
  
!           This was fixed in `-fabi-version=8', the default for GCC 5.1.
! 
!         * `decltype(nullptr)' incorrectly had an alignment of 1,
!           leading to unaligned accesses.  Note that this did not affect
!           the ABI of a function with a `nullptr_t' parameter, as
!           parameters have a minimum alignment.
  
!           This was fixed in `-fabi-version=9', the default for GCC 5.2.
  
!         * Target-specific attributes that affect the identity of a
!           type, such as ia32 calling conventions on a function type
!           (stdcall, regparm, etc.), did not affect the mangled name,
!           leading to name collisions when function pointers were used
!           as template arguments.
  
!           This was fixed in `-fabi-version=10', the default for GCC 6.1.
  
  
!      It also warns about psABI-related changes.  The known psABI
!      changes at this point include:
  
!         * For SysV/x86-64, unions with `long double' members are passed
!           in memory as specified in psABI.  For example:
  
                 union U {
                   long double ld;
                   int i;
                 };
  
!           `union U' is always passed in memory.
! 
  
! `-Wabi-tag (C++ and Objective-C++ only)'
       Warn when a type with an ABI tag is used in a context that does not
       have that ABI tag.  See *note C++ Attributes:: for more information
       about ABI tags.
  
! `-Wctor-dtor-privacy (C++ and Objective-C++ only)'
       Warn when a class seems unusable because all the constructors or
       destructors in that class are private, and it has neither friends
       nor public static member functions.  Also warn if there are no
       non-private methods, and there's at least one private member
       function that isn't a constructor or destructor.
  
! `-Wdelete-non-virtual-dtor (C++ and Objective-C++ only)'
!      Warn when `delete' is used to destroy an instance of a class that
!      has virtual functions and non-virtual destructor. It is unsafe to
       delete an instance of a derived class through a pointer to a base
       class if the base class does not have a virtual destructor.  This
!      warning is enabled by `-Wall'.
  
! `-Wliteral-suffix (C++ and Objective-C++ only)'
       Warn when a string or character literal is followed by a ud-suffix
       which does not begin with an underscore.  As a conforming
       extension, GCC treats such suffixes as separate preprocessing
       tokens in order to maintain backwards compatibility with code that
!      uses formatting macros from `<inttypes.h>'.  For example:
  
            #define __STDC_FORMAT_MACROS
            #include <inttypes.h>
--- 2771,2866 ----
                 template <int &> struct S {};
                 void n (S<N>) {2}
  
!           This was fixed in '-fabi-version=3'.
  
!         * SIMD vector types declared using '__attribute ((vector_size))'
!           were mangled in a non-standard way that does not allow for
!           overloading of functions taking vectors of different sizes.
  
!           The mangling was changed in '-fabi-version=4'.
  
!         * '__attribute ((const))' and 'noreturn' were mangled as type
!           qualifiers, and 'decltype' of a plain declaration was folded
            away.
  
!           These mangling issues were fixed in '-fabi-version=5'.
  
          * Scoped enumerators passed as arguments to a variadic function
!           are promoted like unscoped enumerators, causing 'va_arg' to
            complain.  On most targets this does not actually affect the
            parameter passing ABI, as there is no way to pass an argument
!           smaller than 'int'.
  
            Also, the ABI changed the mangling of template argument packs,
!           'const_cast', 'static_cast', prefix increment/decrement, and a
!           class scope function used as a template argument.
  
!           These issues were corrected in '-fabi-version=6'.
  
          * Lambdas in default argument scope were mangled incorrectly,
!           and the ABI changed the mangling of 'nullptr_t'.
  
!           These issues were corrected in '-fabi-version=7'.
  
          * When mangling a function type with function-cv-qualifiers, the
            un-qualified function type was incorrectly treated as a
            substitution candidate.
  
!           This was fixed in '-fabi-version=8', the default for GCC 5.1.
  
!         * 'decltype(nullptr)' incorrectly had an alignment of 1, leading
!           to unaligned accesses.  Note that this did not affect the ABI
!           of a function with a 'nullptr_t' parameter, as parameters have
!           a minimum alignment.
  
!           This was fixed in '-fabi-version=9', the default for GCC 5.2.
  
!         * Target-specific attributes that affect the identity of a type,
!           such as ia32 calling conventions on a function type (stdcall,
!           regparm, etc.), did not affect the mangled name, leading to
!           name collisions when function pointers were used as template
!           arguments.
  
+           This was fixed in '-fabi-version=10', the default for GCC 6.1.
  
!      It also warns about psABI-related changes.  The known psABI changes
!      at this point include:
  
!         * For SysV/x86-64, unions with 'long double' members are passed
!           in memory as specified in psABI. For example:
  
                 union U {
                   long double ld;
                   int i;
                 };
  
!           'union U' is always passed in memory.
  
! '-Wabi-tag (C++ and Objective-C++ only)'
       Warn when a type with an ABI tag is used in a context that does not
       have that ABI tag.  See *note C++ Attributes:: for more information
       about ABI tags.
  
! '-Wctor-dtor-privacy (C++ and Objective-C++ only)'
       Warn when a class seems unusable because all the constructors or
       destructors in that class are private, and it has neither friends
       nor public static member functions.  Also warn if there are no
       non-private methods, and there's at least one private member
       function that isn't a constructor or destructor.
  
! '-Wdelete-non-virtual-dtor (C++ and Objective-C++ only)'
!      Warn when 'delete' is used to destroy an instance of a class that
!      has virtual functions and non-virtual destructor.  It is unsafe to
       delete an instance of a derived class through a pointer to a base
       class if the base class does not have a virtual destructor.  This
!      warning is enabled by '-Wall'.
  
! '-Wliteral-suffix (C++ and Objective-C++ only)'
       Warn when a string or character literal is followed by a ud-suffix
       which does not begin with an underscore.  As a conforming
       extension, GCC treats such suffixes as separate preprocessing
       tokens in order to maintain backwards compatibility with code that
!      uses formatting macros from '<inttypes.h>'.  For example:
  
            #define __STDC_FORMAT_MACROS
            #include <inttypes.h>
*************** have meanings only for C++ programs:
*** 2881,2928 ****
              printf("My int64: %" PRId64"\n", i64);
            }
  
!      In this case, `PRId64' is treated as a separate preprocessing
       token.
  
       This warning is enabled by default.
  
! `-Wlto-type-mismatch'
       During the link-time optimization warn about type mismatches in
       global declarations from different compilation units.  Requires
!      `-flto' to be enabled.  Enabled by default.
  
! `-Wnarrowing (C++ and Objective-C++ only)'
!      With `-std=gnu++98' or `-std=c++98', warn when a narrowing
!      conversion prohibited by C++11 occurs within `{ }', e.g.
  
            int i = { 2.2 }; // error: narrowing from double to int
  
!      This flag is included in `-Wall' and `-Wc++11-compat'.
  
!      When a later standard is in effect, e.g. when using `-std=c++11',
       narrowing conversions are diagnosed by default, as required by the
       standard.  A narrowing conversion from a constant produces an
       error, and a narrowing conversion from a non-constant produces a
!      warning, but `-Wno-narrowing' suppresses the diagnostic.  Note
!      that this does not affect the meaning of well-formed code;
!      narrowing conversions are still considered ill-formed in SFINAE
!      contexts.
  
! `-Wnoexcept (C++ and Objective-C++ only)'
       Warn when a noexcept-expression evaluates to false because of a
       call to a function that does not have a non-throwing exception
!      specification (i.e. `throw()' or `noexcept') but is known by the
       compiler to never throw an exception.
  
! `-Wnon-virtual-dtor (C++ and Objective-C++ only)'
       Warn when a class has virtual functions and an accessible
       non-virtual destructor itself or in an accessible polymorphic base
       class, in which case it is possible but unsafe to delete an
       instance of a derived class through a pointer to the class itself
!      or base class.  This warning is automatically enabled if
!      `-Weffc++' is specified.
  
! `-Wreorder (C++ and Objective-C++ only)'
       Warn when the order of member initializers given in the code does
       not match the order in which they must be executed.  For instance:
  
--- 2871,2918 ----
              printf("My int64: %" PRId64"\n", i64);
            }
  
!      In this case, 'PRId64' is treated as a separate preprocessing
       token.
  
       This warning is enabled by default.
  
! '-Wlto-type-mismatch'
! 
       During the link-time optimization warn about type mismatches in
       global declarations from different compilation units.  Requires
!      '-flto' to be enabled.  Enabled by default.
  
! '-Wnarrowing (C++ and Objective-C++ only)'
!      With '-std=gnu++98' or '-std=c++98', warn when a narrowing
!      conversion prohibited by C++11 occurs within '{ }', e.g.
  
            int i = { 2.2 }; // error: narrowing from double to int
  
!      This flag is included in '-Wall' and '-Wc++11-compat'.
  
!      When a later standard is in effect, e.g.  when using '-std=c++11',
       narrowing conversions are diagnosed by default, as required by the
       standard.  A narrowing conversion from a constant produces an
       error, and a narrowing conversion from a non-constant produces a
!      warning, but '-Wno-narrowing' suppresses the diagnostic.  Note that
!      this does not affect the meaning of well-formed code; narrowing
!      conversions are still considered ill-formed in SFINAE contexts.
  
! '-Wnoexcept (C++ and Objective-C++ only)'
       Warn when a noexcept-expression evaluates to false because of a
       call to a function that does not have a non-throwing exception
!      specification (i.e.  'throw()' or 'noexcept') but is known by the
       compiler to never throw an exception.
  
! '-Wnon-virtual-dtor (C++ and Objective-C++ only)'
       Warn when a class has virtual functions and an accessible
       non-virtual destructor itself or in an accessible polymorphic base
       class, in which case it is possible but unsafe to delete an
       instance of a derived class through a pointer to the class itself
!      or base class.  This warning is automatically enabled if '-Weffc++'
!      is specified.
  
! '-Wreorder (C++ and Objective-C++ only)'
       Warn when the order of member initializers given in the code does
       not match the order in which they must be executed.  For instance:
  
*************** have meanings only for C++ programs:
*** 2932,2962 ****
              A(): j (0), i (1) { }
            };
  
!      The compiler rearranges the member initializers for `i' and `j' to
       match the declaration order of the members, emitting a warning to
!      that effect.  This warning is enabled by `-Wall'.
  
! `-fext-numeric-literals (C++ and Objective-C++ only)'
       Accept imaginary, fixed-point, or machine-defined literal number
       suffixes as GNU extensions.  When this option is turned off these
       suffixes are treated as C++11 user-defined literal numeric
!      suffixes.  This is on by default for all pre-C++11 dialects and
!      all GNU dialects: `-std=c++98', `-std=gnu++98', `-std=gnu++11',
!      `-std=gnu++14'.  This option is off by default for ISO C++11
!      onwards (`-std=c++11', ...).
  
!  The following `-W...' options are not affected by `-Wall'.
  
! `-Weffc++ (C++ and Objective-C++ only)'
       Warn about violations of the following style guidelines from Scott
!      Meyers' `Effective C++' series of books:
  
          * Define a copy constructor and an assignment operator for
            classes with dynamically-allocated memory.
  
          * Prefer initialization to assignment in constructors.
  
!         * Have `operator=' return a reference to `*this'.
  
          * Don't try to return a reference when you must return an
            object.
--- 2922,2952 ----
              A(): j (0), i (1) { }
            };
  
!      The compiler rearranges the member initializers for 'i' and 'j' to
       match the declaration order of the members, emitting a warning to
!      that effect.  This warning is enabled by '-Wall'.
  
! '-fext-numeric-literals (C++ and Objective-C++ only)'
       Accept imaginary, fixed-point, or machine-defined literal number
       suffixes as GNU extensions.  When this option is turned off these
       suffixes are treated as C++11 user-defined literal numeric
!      suffixes.  This is on by default for all pre-C++11 dialects and all
!      GNU dialects: '-std=c++98', '-std=gnu++98', '-std=gnu++11',
!      '-std=gnu++14'.  This option is off by default for ISO C++11
!      onwards ('-std=c++11', ...).
  
!  The following '-W...' options are not affected by '-Wall'.
  
! '-Weffc++ (C++ and Objective-C++ only)'
       Warn about violations of the following style guidelines from Scott
!      Meyers' 'Effective C++' series of books:
  
          * Define a copy constructor and an assignment operator for
            classes with dynamically-allocated memory.
  
          * Prefer initialization to assignment in constructors.
  
!         * Have 'operator=' return a reference to '*this'.
  
          * Don't try to return a reference when you must return an
            object.
*************** have meanings only for C++ programs:
*** 2964,3012 ****
          * Distinguish between prefix and postfix forms of increment and
            decrement operators.
  
!         * Never overload `&&', `||', or `,'.
! 
  
!      This option also enables `-Wnon-virtual-dtor', which is also one
!      of the effective C++ recommendations.  However, the check is
!      extended to warn about the lack of virtual destructor in accessible
       non-polymorphic bases classes too.
  
       When selecting this option, be aware that the standard library
!      headers do not obey all of these guidelines; use `grep -v' to
       filter out those warnings.
  
! `-Wstrict-null-sentinel (C++ and Objective-C++ only)'
!      Warn about the use of an uncasted `NULL' as sentinel.  When
!      compiling only with GCC this is a valid sentinel, as `NULL' is
!      defined to `__null'.  Although it is a null pointer constant
!      rather than a null pointer, it is guaranteed to be of the same
!      size as a pointer.  But this use is not portable across different
!      compilers.
  
! `-Wno-non-template-friend (C++ and Objective-C++ only)'
       Disable warnings when non-templatized friend functions are declared
       within a template.  Since the advent of explicit template
       specification support in G++, if the name of the friend is an
!      unqualified-id (i.e., `friend foo(int)'), the C++ language
       specification demands that the friend declare or define an
       ordinary, nontemplate function.  (Section 14.5.3).  Before G++
       implemented explicit specification, unqualified-ids could be
       interpreted as a particular specialization of a templatized
       function.  Because this non-conforming behavior is no longer the
!      default behavior for G++, `-Wnon-template-friend' allows the
       compiler to check existing code for potential trouble spots and is
       on by default.  This new compiler behavior can be turned off with
!      `-Wno-non-template-friend', which keeps the conformant compiler
       code but disables the helpful warning.
  
! `-Wold-style-cast (C++ and Objective-C++ only)'
       Warn if an old-style (C-style) cast to a non-void type is used
!      within a C++ program.  The new-style casts (`dynamic_cast',
!      `static_cast', `reinterpret_cast', and `const_cast') are less
       vulnerable to unintended effects and much easier to search for.
  
! `-Woverloaded-virtual (C++ and Objective-C++ only)'
       Warn when a function declaration hides virtual functions from a
       base class.  For example, in:
  
--- 2954,3000 ----
          * Distinguish between prefix and postfix forms of increment and
            decrement operators.
  
!         * Never overload '&&', '||', or ','.
  
!      This option also enables '-Wnon-virtual-dtor', which is also one of
!      the effective C++ recommendations.  However, the check is extended
!      to warn about the lack of virtual destructor in accessible
       non-polymorphic bases classes too.
  
       When selecting this option, be aware that the standard library
!      headers do not obey all of these guidelines; use 'grep -v' to
       filter out those warnings.
  
! '-Wstrict-null-sentinel (C++ and Objective-C++ only)'
!      Warn about the use of an uncasted 'NULL' as sentinel.  When
!      compiling only with GCC this is a valid sentinel, as 'NULL' is
!      defined to '__null'.  Although it is a null pointer constant rather
!      than a null pointer, it is guaranteed to be of the same size as a
!      pointer.  But this use is not portable across different compilers.
  
! '-Wno-non-template-friend (C++ and Objective-C++ only)'
       Disable warnings when non-templatized friend functions are declared
       within a template.  Since the advent of explicit template
       specification support in G++, if the name of the friend is an
!      unqualified-id (i.e., 'friend foo(int)'), the C++ language
       specification demands that the friend declare or define an
       ordinary, nontemplate function.  (Section 14.5.3).  Before G++
       implemented explicit specification, unqualified-ids could be
       interpreted as a particular specialization of a templatized
       function.  Because this non-conforming behavior is no longer the
!      default behavior for G++, '-Wnon-template-friend' allows the
       compiler to check existing code for potential trouble spots and is
       on by default.  This new compiler behavior can be turned off with
!      '-Wno-non-template-friend', which keeps the conformant compiler
       code but disables the helpful warning.
  
! '-Wold-style-cast (C++ and Objective-C++ only)'
       Warn if an old-style (C-style) cast to a non-void type is used
!      within a C++ program.  The new-style casts ('dynamic_cast',
!      'static_cast', 'reinterpret_cast', and 'const_cast') are less
       vulnerable to unintended effects and much easier to search for.
  
! '-Woverloaded-virtual (C++ and Objective-C++ only)'
       Warn when a function declaration hides virtual functions from a
       base class.  For example, in:
  
*************** have meanings only for C++ programs:
*** 3018,3073 ****
              void f(int);
            };
  
!      the `A' class version of `f' is hidden in `B', and code like:
  
            B* b;
            b->f();
  
       fails to compile.
  
! `-Wno-pmf-conversions (C++ and Objective-C++ only)'
       Disable the diagnostic for converting a bound pointer to member
       function to a plain pointer.
  
! `-Wsign-promo (C++ and Objective-C++ only)'
       Warn when overload resolution chooses a promotion from unsigned or
       enumerated type to a signed type, over a conversion to an unsigned
       type of the same size.  Previous versions of G++ tried to preserve
       unsignedness, but the standard mandates the current behavior.
  
! `-Wtemplates (C++ and Objective-C++ only)'
       Warn when a primary template declaration is encountered.  Some
       coding rules disallow templates, and this may be used to enforce
       that rule.  The warning is inactive inside a system header file,
!      such as the STL, so one can still use the STL.  One may also
       instantiate or specialize templates.
  
! `-Wmultiple-inheritance (C++ and Objective-C++ only)'
       Warn when a class is defined with multiple direct base classes.
       Some coding rules disallow multiple inheritance, and this may be
!      used to enforce that rule.  The warning is inactive inside a
!      system header file, such as the STL, so one can still use the STL.
!      One may also define classes that indirectly use multiple
!      inheritance.
  
! `-Wvirtual-inheritance'
       Warn when a class is defined with a virtual direct base classe.
       Some coding rules disallow multiple inheritance, and this may be
!      used to enforce that rule.  The warning is inactive inside a
!      system header file, such as the STL, so one can still use the STL.
!      One may also define classes that indirectly use virtual
!      inheritance.
  
! `-Wnamespaces'
       Warn when a namespace definition is opened.  Some coding rules
       disallow namespaces, and this may be used to enforce that rule.
       The warning is inactive inside a system header file, such as the
!      STL, so one can still use the STL.  One may also use using
       directives and qualified names.
  
! `-Wno-terminate (C++ and Objective-C++ only)'
       Disable the warning about a throw-expression that will immediately
!      result in a call to `terminate'.
  
  
  File: gcc.info,  Node: Objective-C and Objective-C++ Dialect Options,  Next: Diagnostic Message Formatting Options,  Prev: C++ Dialect Options,  Up: Invoking GCC
--- 3006,3059 ----
              void f(int);
            };
  
!      the 'A' class version of 'f' is hidden in 'B', and code like:
  
            B* b;
            b->f();
  
       fails to compile.
  
! '-Wno-pmf-conversions (C++ and Objective-C++ only)'
       Disable the diagnostic for converting a bound pointer to member
       function to a plain pointer.
  
! '-Wsign-promo (C++ and Objective-C++ only)'
       Warn when overload resolution chooses a promotion from unsigned or
       enumerated type to a signed type, over a conversion to an unsigned
       type of the same size.  Previous versions of G++ tried to preserve
       unsignedness, but the standard mandates the current behavior.
  
! '-Wtemplates (C++ and Objective-C++ only)'
       Warn when a primary template declaration is encountered.  Some
       coding rules disallow templates, and this may be used to enforce
       that rule.  The warning is inactive inside a system header file,
!      such as the STL, so one can still use the STL. One may also
       instantiate or specialize templates.
  
! '-Wmultiple-inheritance (C++ and Objective-C++ only)'
       Warn when a class is defined with multiple direct base classes.
       Some coding rules disallow multiple inheritance, and this may be
!      used to enforce that rule.  The warning is inactive inside a system
!      header file, such as the STL, so one can still use the STL. One may
!      also define classes that indirectly use multiple inheritance.
  
! '-Wvirtual-inheritance'
       Warn when a class is defined with a virtual direct base classe.
       Some coding rules disallow multiple inheritance, and this may be
!      used to enforce that rule.  The warning is inactive inside a system
!      header file, such as the STL, so one can still use the STL. One may
!      also define classes that indirectly use virtual inheritance.
  
! '-Wnamespaces'
       Warn when a namespace definition is opened.  Some coding rules
       disallow namespaces, and this may be used to enforce that rule.
       The warning is inactive inside a system header file, such as the
!      STL, so one can still use the STL. One may also use using
       directives and qualified names.
  
! '-Wno-terminate (C++ and Objective-C++ only)'
       Disable the warning about a throw-expression that will immediately
!      result in a call to 'terminate'.
  
  
  File: gcc.info,  Node: Objective-C and Objective-C++ Dialect Options,  Next: Diagnostic Message Formatting Options,  Prev: C++ Dialect Options,  Up: Invoking GCC
*************** languages themselves.  *Note Language St
*** 3080,3295 ****
  Standards, for references.)
  
   This section describes the command-line options that are only
! meaningful for Objective-C and Objective-C++ programs.  You can also
! use most of the language-independent GNU compiler options.  For
! example, you might compile a file `some_class.m' like this:
  
       gcc -g -fgnu-runtime -O -c some_class.m
  
! In this example, `-fgnu-runtime' is an option meant only for
! Objective-C and Objective-C++ programs; you can use the other options
! with any language supported by GCC.
  
   Note that since Objective-C is an extension of the C language,
  Objective-C compilations may also use options specific to the C
! front-end (e.g., `-Wtraditional').  Similarly, Objective-C++
! compilations may use C++-specific options (e.g., `-Wabi').
  
!  Here is a list of options that are _only_ for compiling Objective-C
! and Objective-C++ programs:
  
! `-fconstant-string-class=CLASS-NAME'
       Use CLASS-NAME as the name of the class to instantiate for each
!      literal string specified with the syntax `@"..."'.  The default
!      class name is `NXConstantString' if the GNU runtime is being used,
!      and `NSConstantString' if the NeXT runtime is being used (see
!      below).  The `-fconstant-cfstrings' option, if also present,
!      overrides the `-fconstant-string-class' setting and cause `@"..."'
       literals to be laid out as constant CoreFoundation strings.
  
! `-fgnu-runtime'
       Generate object code compatible with the standard GNU Objective-C
       runtime.  This is the default for most types of systems.
  
! `-fnext-runtime'
       Generate output compatible with the NeXT runtime.  This is the
!      default for NeXT-based systems, including Darwin and Mac OS X.
!      The macro `__NEXT_RUNTIME__' is predefined if (and only if) this
!      option is used.
  
! `-fno-nil-receivers'
!      Assume that all Objective-C message dispatches (`[receiver
       message:arg]') in this translation unit ensure that the receiver is
!      not `nil'.  This allows for more efficient entry points in the
       runtime to be used.  This option is only available in conjunction
       with the NeXT runtime and ABI version 0 or 1.
  
! `-fobjc-abi-version=N'
       Use version N of the Objective-C ABI for the selected runtime.
       This option is currently supported only for the NeXT runtime.  In
       that case, Version 0 is the traditional (32-bit) ABI without
       support for properties and other Objective-C 2.0 additions.
       Version 1 is the traditional (32-bit) ABI with support for
       properties and other Objective-C 2.0 additions.  Version 2 is the
!      modern (64-bit) ABI.  If nothing is specified, the default is
!      Version 0 on 32-bit target machines, and Version 2 on 64-bit
!      target machines.
  
! `-fobjc-call-cxx-cdtors'
       For each Objective-C class, check if any of its instance variables
       is a C++ object with a non-trivial default constructor.  If so,
!      synthesize a special `- (id) .cxx_construct' instance method which
       runs non-trivial default constructors on any such instance
!      variables, in order, and then return `self'.  Similarly, check if
       any instance variable is a C++ object with a non-trivial
!      destructor, and if so, synthesize a special `- (void)
       .cxx_destruct' method which runs all such default destructors, in
       reverse order.
  
!      The `- (id) .cxx_construct' and `- (void) .cxx_destruct' methods
!      thusly generated only operate on instance variables declared in
!      the current Objective-C class, and not those inherited from
       superclasses.  It is the responsibility of the Objective-C runtime
       to invoke all such methods in an object's inheritance hierarchy.
!      The `- (id) .cxx_construct' methods are invoked by the runtime
!      immediately after a new object instance is allocated; the `-
!      (void) .cxx_destruct' methods are invoked immediately before the
!      runtime deallocates an object instance.
  
       As of this writing, only the NeXT runtime on Mac OS X 10.4 and
!      later has support for invoking the `- (id) .cxx_construct' and `-
       (void) .cxx_destruct' methods.
  
! `-fobjc-direct-dispatch'
       Allow fast jumps to the message dispatcher.  On Darwin this is
       accomplished via the comm page.
  
! `-fobjc-exceptions'
       Enable syntactic support for structured exception handling in
       Objective-C, similar to what is offered by C++ and Java.  This
!      option is required to use the Objective-C keywords `@try',
!      `@throw', `@catch', `@finally' and `@synchronized'.  This option
!      is available with both the GNU runtime and the NeXT runtime (but
!      not available in conjunction with the NeXT runtime on Mac OS X
!      10.2 and earlier).
  
! `-fobjc-gc'
       Enable garbage collection (GC) in Objective-C and Objective-C++
       programs.  This option is only available with the NeXT runtime; the
       GNU runtime has a different garbage collection implementation that
       does not require special compiler flags.
  
! `-fobjc-nilcheck'
       For the NeXT runtime with version 2 of the ABI, check for a nil
       receiver in method invocations before doing the actual method call.
!      This is the default and can be disabled using
!      `-fno-objc-nilcheck'.  Class methods and super calls are never
!      checked for nil in this way no matter what this flag is set to.
!      Currently this flag does nothing when the GNU runtime, or an older
!      version of the NeXT runtime ABI, is used.
  
! `-fobjc-std=objc1'
       Conform to the language syntax of Objective-C 1.0, the language
!      recognized by GCC 4.0.  This only affects the Objective-C
!      additions to the C/C++ language; it does not affect conformance to
!      C/C++ standards, which is controlled by the separate C/C++ dialect
!      option flags.  When this option is used with the Objective-C or
       Objective-C++ compiler, any Objective-C syntax that is not
       recognized by GCC 4.0 is rejected.  This is useful if you need to
       make sure that your Objective-C code can be compiled with older
       versions of GCC.
  
! `-freplace-objc-classes'
!      Emit a special marker instructing `ld(1)' not to statically link in
!      the resulting object file, and allow `dyld(1)' to load it in at
!      run time instead.  This is used in conjunction with the
       Fix-and-Continue debugging mode, where the object file in question
!      may be recompiled and dynamically reloaded in the course of
!      program execution, without the need to restart the program itself.
       Currently, Fix-and-Continue functionality is only available in
       conjunction with the NeXT runtime on Mac OS X 10.3 and later.
  
! `-fzero-link'
       When compiling for the NeXT runtime, the compiler ordinarily
!      replaces calls to `objc_getClass("...")' (when the name of the
       class is known at compile time) with static class references that
       get initialized at load time, which improves run-time performance.
!      Specifying the `-fzero-link' flag suppresses this behavior and
!      causes calls to `objc_getClass("...")' to be retained.  This is
       useful in Zero-Link debugging mode, since it allows for individual
!      class implementations to be modified during program execution.
!      The GNU runtime currently always retains calls to
!      `objc_get_class("...")' regardless of command-line options.
  
! `-fno-local-ivars'
       By default instance variables in Objective-C can be accessed as if
       they were local variables from within the methods of the class
       they're declared in.  This can lead to shadowing between instance
       variables and other variables declared either locally inside a
       class method or globally with the same name.  Specifying the
!      `-fno-local-ivars' flag disables this behavior thus avoiding
       variable shadowing issues.
  
! `-fivar-visibility=[public|protected|private|package]'
       Set the default instance variable visibility to the specified
!      option so that instance variables declared outside the scope of
!      any access modifier directives default to the specified visibility.
  
! `-gen-decls'
!      Dump interface declarations for all classes seen in the source
!      file to a file named `SOURCENAME.decl'.
  
! `-Wassign-intercept (Objective-C and Objective-C++ only)'
       Warn whenever an Objective-C assignment is being intercepted by the
       garbage collector.
  
! `-Wno-protocol (Objective-C and Objective-C++ only)'
!      If a class is declared to implement a protocol, a warning is
!      issued for every method in the protocol that is not implemented by
!      the class.  The default behavior is to issue a warning for every
!      method not explicitly implemented in the class, even if a method
       implementation is inherited from the superclass.  If you use the
!      `-Wno-protocol' option, then methods inherited from the superclass
       are considered to be implemented, and no warning is issued for
       them.
  
! `-Wselector (Objective-C and Objective-C++ only)'
       Warn if multiple methods of different types for the same selector
       are found during compilation.  The check is performed on the list
       of methods in the final stage of compilation.  Additionally, a
       check is performed for each selector appearing in a
!      `@selector(...)'  expression, and a corresponding method for that
       selector has been found during compilation.  Because these checks
       scan the method table only at the end of compilation, these
       warnings are not produced if the final stage of compilation is not
       reached, for example because an error is found during compilation,
!      or because the `-fsyntax-only' option is being used.
  
! `-Wstrict-selector-match (Objective-C and Objective-C++ only)'
       Warn if multiple methods with differing argument and/or return
       types are found for a given selector when attempting to send a
!      message using this selector to a receiver of type `id' or `Class'.
!      When this flag is off (which is the default behavior), the
!      compiler omits such warnings if any differences found are confined
!      to types that share the same size and alignment.
  
! `-Wundeclared-selector (Objective-C and Objective-C++ only)'
!      Warn if a `@selector(...)' expression referring to an undeclared
       selector is found.  A selector is considered undeclared if no
!      method with that name has been declared before the
!      `@selector(...)' expression, either explicitly in an `@interface'
!      or `@protocol' declaration, or implicitly in an `@implementation'
!      section.  This option always performs its checks as soon as a
!      `@selector(...)' expression is found, while `-Wselector' only
!      performs its checks in the final stage of compilation.  This also
!      enforces the coding style convention that methods and selectors
!      must be declared before being used.
  
! `-print-objc-runtime-info'
       Generate C header describing the largest structure that is passed
       by value, if any.
  
- 
  
  File: gcc.info,  Node: Diagnostic Message Formatting Options,  Next: Warning Options,  Prev: Objective-C and Objective-C++ Dialect Options,  Up: Invoking GCC
  
--- 3066,3280 ----
  Standards, for references.)
  
   This section describes the command-line options that are only
! meaningful for Objective-C and Objective-C++ programs.  You can also use
! most of the language-independent GNU compiler options.  For example, you
! might compile a file 'some_class.m' like this:
  
       gcc -g -fgnu-runtime -O -c some_class.m
  
! In this example, '-fgnu-runtime' is an option meant only for Objective-C
! and Objective-C++ programs; you can use the other options with any
! language supported by GCC.
  
   Note that since Objective-C is an extension of the C language,
  Objective-C compilations may also use options specific to the C
! front-end (e.g., '-Wtraditional').  Similarly, Objective-C++
! compilations may use C++-specific options (e.g., '-Wabi').
  
!  Here is a list of options that are _only_ for compiling Objective-C and
! Objective-C++ programs:
  
! '-fconstant-string-class=CLASS-NAME'
       Use CLASS-NAME as the name of the class to instantiate for each
!      literal string specified with the syntax '@"..."'.  The default
!      class name is 'NXConstantString' if the GNU runtime is being used,
!      and 'NSConstantString' if the NeXT runtime is being used (see
!      below).  The '-fconstant-cfstrings' option, if also present,
!      overrides the '-fconstant-string-class' setting and cause '@"..."'
       literals to be laid out as constant CoreFoundation strings.
  
! '-fgnu-runtime'
       Generate object code compatible with the standard GNU Objective-C
       runtime.  This is the default for most types of systems.
  
! '-fnext-runtime'
       Generate output compatible with the NeXT runtime.  This is the
!      default for NeXT-based systems, including Darwin and Mac OS X.  The
!      macro '__NEXT_RUNTIME__' is predefined if (and only if) this option
!      is used.
  
! '-fno-nil-receivers'
!      Assume that all Objective-C message dispatches ('[receiver
       message:arg]') in this translation unit ensure that the receiver is
!      not 'nil'.  This allows for more efficient entry points in the
       runtime to be used.  This option is only available in conjunction
       with the NeXT runtime and ABI version 0 or 1.
  
! '-fobjc-abi-version=N'
       Use version N of the Objective-C ABI for the selected runtime.
       This option is currently supported only for the NeXT runtime.  In
       that case, Version 0 is the traditional (32-bit) ABI without
       support for properties and other Objective-C 2.0 additions.
       Version 1 is the traditional (32-bit) ABI with support for
       properties and other Objective-C 2.0 additions.  Version 2 is the
!      modern (64-bit) ABI. If nothing is specified, the default is
!      Version 0 on 32-bit target machines, and Version 2 on 64-bit target
!      machines.
  
! '-fobjc-call-cxx-cdtors'
       For each Objective-C class, check if any of its instance variables
       is a C++ object with a non-trivial default constructor.  If so,
!      synthesize a special '- (id) .cxx_construct' instance method which
       runs non-trivial default constructors on any such instance
!      variables, in order, and then return 'self'.  Similarly, check if
       any instance variable is a C++ object with a non-trivial
!      destructor, and if so, synthesize a special '- (void)
       .cxx_destruct' method which runs all such default destructors, in
       reverse order.
  
!      The '- (id) .cxx_construct' and '- (void) .cxx_destruct' methods
!      thusly generated only operate on instance variables declared in the
!      current Objective-C class, and not those inherited from
       superclasses.  It is the responsibility of the Objective-C runtime
       to invoke all such methods in an object's inheritance hierarchy.
!      The '- (id) .cxx_construct' methods are invoked by the runtime
!      immediately after a new object instance is allocated; the '- (void)
!      .cxx_destruct' methods are invoked immediately before the runtime
!      deallocates an object instance.
  
       As of this writing, only the NeXT runtime on Mac OS X 10.4 and
!      later has support for invoking the '- (id) .cxx_construct' and '-
       (void) .cxx_destruct' methods.
  
! '-fobjc-direct-dispatch'
       Allow fast jumps to the message dispatcher.  On Darwin this is
       accomplished via the comm page.
  
! '-fobjc-exceptions'
       Enable syntactic support for structured exception handling in
       Objective-C, similar to what is offered by C++ and Java.  This
!      option is required to use the Objective-C keywords '@try',
!      '@throw', '@catch', '@finally' and '@synchronized'.  This option is
!      available with both the GNU runtime and the NeXT runtime (but not
!      available in conjunction with the NeXT runtime on Mac OS X 10.2 and
!      earlier).
  
! '-fobjc-gc'
       Enable garbage collection (GC) in Objective-C and Objective-C++
       programs.  This option is only available with the NeXT runtime; the
       GNU runtime has a different garbage collection implementation that
       does not require special compiler flags.
  
! '-fobjc-nilcheck'
       For the NeXT runtime with version 2 of the ABI, check for a nil
       receiver in method invocations before doing the actual method call.
!      This is the default and can be disabled using '-fno-objc-nilcheck'.
!      Class methods and super calls are never checked for nil in this way
!      no matter what this flag is set to.  Currently this flag does
!      nothing when the GNU runtime, or an older version of the NeXT
!      runtime ABI, is used.
  
! '-fobjc-std=objc1'
       Conform to the language syntax of Objective-C 1.0, the language
!      recognized by GCC 4.0.  This only affects the Objective-C additions
!      to the C/C++ language; it does not affect conformance to C/C++
!      standards, which is controlled by the separate C/C++ dialect option
!      flags.  When this option is used with the Objective-C or
       Objective-C++ compiler, any Objective-C syntax that is not
       recognized by GCC 4.0 is rejected.  This is useful if you need to
       make sure that your Objective-C code can be compiled with older
       versions of GCC.
  
! '-freplace-objc-classes'
!      Emit a special marker instructing 'ld(1)' not to statically link in
!      the resulting object file, and allow 'dyld(1)' to load it in at run
!      time instead.  This is used in conjunction with the
       Fix-and-Continue debugging mode, where the object file in question
!      may be recompiled and dynamically reloaded in the course of program
!      execution, without the need to restart the program itself.
       Currently, Fix-and-Continue functionality is only available in
       conjunction with the NeXT runtime on Mac OS X 10.3 and later.
  
! '-fzero-link'
       When compiling for the NeXT runtime, the compiler ordinarily
!      replaces calls to 'objc_getClass("...")' (when the name of the
       class is known at compile time) with static class references that
       get initialized at load time, which improves run-time performance.
!      Specifying the '-fzero-link' flag suppresses this behavior and
!      causes calls to 'objc_getClass("...")' to be retained.  This is
       useful in Zero-Link debugging mode, since it allows for individual
!      class implementations to be modified during program execution.  The
!      GNU runtime currently always retains calls to
!      'objc_get_class("...")' regardless of command-line options.
  
! '-fno-local-ivars'
       By default instance variables in Objective-C can be accessed as if
       they were local variables from within the methods of the class
       they're declared in.  This can lead to shadowing between instance
       variables and other variables declared either locally inside a
       class method or globally with the same name.  Specifying the
!      '-fno-local-ivars' flag disables this behavior thus avoiding
       variable shadowing issues.
  
! '-fivar-visibility=[public|protected|private|package]'
       Set the default instance variable visibility to the specified
!      option so that instance variables declared outside the scope of any
!      access modifier directives default to the specified visibility.
  
! '-gen-decls'
!      Dump interface declarations for all classes seen in the source file
!      to a file named 'SOURCENAME.decl'.
  
! '-Wassign-intercept (Objective-C and Objective-C++ only)'
       Warn whenever an Objective-C assignment is being intercepted by the
       garbage collector.
  
! '-Wno-protocol (Objective-C and Objective-C++ only)'
!      If a class is declared to implement a protocol, a warning is issued
!      for every method in the protocol that is not implemented by the
!      class.  The default behavior is to issue a warning for every method
!      not explicitly implemented in the class, even if a method
       implementation is inherited from the superclass.  If you use the
!      '-Wno-protocol' option, then methods inherited from the superclass
       are considered to be implemented, and no warning is issued for
       them.
  
! '-Wselector (Objective-C and Objective-C++ only)'
       Warn if multiple methods of different types for the same selector
       are found during compilation.  The check is performed on the list
       of methods in the final stage of compilation.  Additionally, a
       check is performed for each selector appearing in a
!      '@selector(...)' expression, and a corresponding method for that
       selector has been found during compilation.  Because these checks
       scan the method table only at the end of compilation, these
       warnings are not produced if the final stage of compilation is not
       reached, for example because an error is found during compilation,
!      or because the '-fsyntax-only' option is being used.
  
! '-Wstrict-selector-match (Objective-C and Objective-C++ only)'
       Warn if multiple methods with differing argument and/or return
       types are found for a given selector when attempting to send a
!      message using this selector to a receiver of type 'id' or 'Class'.
!      When this flag is off (which is the default behavior), the compiler
!      omits such warnings if any differences found are confined to types
!      that share the same size and alignment.
  
! '-Wundeclared-selector (Objective-C and Objective-C++ only)'
!      Warn if a '@selector(...)' expression referring to an undeclared
       selector is found.  A selector is considered undeclared if no
!      method with that name has been declared before the '@selector(...)'
!      expression, either explicitly in an '@interface' or '@protocol'
!      declaration, or implicitly in an '@implementation' section.  This
!      option always performs its checks as soon as a '@selector(...)'
!      expression is found, while '-Wselector' only performs its checks in
!      the final stage of compilation.  This also enforces the coding
!      style convention that methods and selectors must be declared before
!      being used.
  
! '-print-objc-runtime-info'
       Generate C header describing the largest structure that is passed
       by value, if any.
  
  
  File: gcc.info,  Node: Diagnostic Message Formatting Options,  Next: Warning Options,  Prev: Objective-C and Objective-C++ Dialect Options,  Up: Invoking GCC
  
*************** File: gcc.info,  Node: Diagnostic Messag
*** 3299,3397 ****
  Traditionally, diagnostic messages have been formatted irrespective of
  the output device's aspect (e.g. its width, ...).  You can use the
  options described below to control the formatting algorithm for
! diagnostic messages, e.g. how many characters per line, how often
! source location information should be reported.  Note that some
! language front ends may not honor these options.
  
! `-fmessage-length=N'
       Try to format error messages so that they fit on lines of about N
       characters.  If N is zero, then no line-wrapping is done; each
       error message appears on a single line.  This is the default for
       all front ends.
  
! `-fdiagnostics-show-location=once'
       Only meaningful in line-wrapping mode.  Instructs the diagnostic
       messages reporter to emit source location information _once_; that
       is, in case the message is too long to fit on a single physical
       line and has to be wrapped, the source location won't be emitted
!      (as prefix) again, over and over, in subsequent continuation
!      lines.  This is the default behavior.
  
! `-fdiagnostics-show-location=every-line'
       Only meaningful in line-wrapping mode.  Instructs the diagnostic
       messages reporter to emit the same source location information (as
       prefix) for physical lines that result from the process of breaking
       a message which is too long to fit on a single line.
  
! `-fdiagnostics-color[=WHEN]'
! `-fno-diagnostics-color'
!      Use color in diagnostics.  WHEN is `never', `always', or `auto'.
!      The default depends on how the compiler has been configured, it
!      can be any of the above WHEN options or also `never' if
!      `GCC_COLORS' environment variable isn't present in the environment,
!      and `auto' otherwise.  `auto' means to use color only when the
!      standard error is a terminal.  The forms `-fdiagnostics-color' and
!      `-fno-diagnostics-color' are aliases for
!      `-fdiagnostics-color=always' and `-fdiagnostics-color=never',
       respectively.
  
!      The colors are defined by the environment variable `GCC_COLORS'.
       Its value is a colon-separated list of capabilities and Select
!      Graphic Rendition (SGR) substrings. SGR commands are interpreted
       by the terminal or terminal emulator.  (See the section in the
       documentation of your text terminal for permitted values and their
       meanings as character attributes.)  These substring values are
       integers in decimal representation and can be concatenated with
!      semicolons.  Common values to concatenate include `1' for bold,
!      `4' for underline, `5' for blink, `7' for inverse, `39' for
!      default foreground color, `30' to `37' for foreground colors, `90'
!      to `97' for 16-color mode foreground colors, `38;5;0' to `38;5;255'
!      for 88-color and 256-color modes foreground colors, `49' for
!      default background color, `40' to `47' for background colors,
!      `100' to `107' for 16-color mode background colors, and `48;5;0'
!      to `48;5;255' for 88-color and 256-color modes background colors.
  
!      The default `GCC_COLORS' is
            error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01
!      where `01;31' is bold red, `01;35' is bold magenta, `01;36' is
!      bold cyan, `01;32' is bold green and `01' is bold. Setting
!      `GCC_COLORS' to the empty string disables colors.  Supported
!      capabilities are as follows.
  
!     `error='
            SGR substring for error: markers.
  
!     `warning='
            SGR substring for warning: markers.
  
!     `note='
            SGR substring for note: markers.
  
!     `caret='
            SGR substring for caret line.
  
!     `locus='
!           SGR substring for location information, `file:line' or
!           `file:line:column' etc.
  
!     `quote='
            SGR substring for information printed within quotes.
  
! `-fno-diagnostics-show-option'
       By default, each diagnostic emitted includes text indicating the
       command-line option that directly controls the diagnostic (if such
       an option is known to the diagnostic machinery).  Specifying the
!      `-fno-diagnostics-show-option' flag suppresses that behavior.
  
! `-fno-diagnostics-show-caret'
       By default, each diagnostic emitted includes the original source
!      line and a caret `^' indicating the column.  This option
!      suppresses this information.  The source line is truncated to N
!      characters, if the `-fmessage-length=n' option is given.  When the
!      output is done to the terminal, the width is limited to the width
!      given by the `COLUMNS' environment variable or, if not set, to the
!      terminal width.
! 
  
  
  File: gcc.info,  Node: Warning Options,  Next: Debugging Options,  Prev: Diagnostic Message Formatting Options,  Up: Invoking GCC
--- 3284,3381 ----
  Traditionally, diagnostic messages have been formatted irrespective of
  the output device's aspect (e.g. its width, ...).  You can use the
  options described below to control the formatting algorithm for
! diagnostic messages, e.g. how many characters per line, how often source
! location information should be reported.  Note that some language front
! ends may not honor these options.
  
! '-fmessage-length=N'
       Try to format error messages so that they fit on lines of about N
       characters.  If N is zero, then no line-wrapping is done; each
       error message appears on a single line.  This is the default for
       all front ends.
  
! '-fdiagnostics-show-location=once'
       Only meaningful in line-wrapping mode.  Instructs the diagnostic
       messages reporter to emit source location information _once_; that
       is, in case the message is too long to fit on a single physical
       line and has to be wrapped, the source location won't be emitted
!      (as prefix) again, over and over, in subsequent continuation lines.
!      This is the default behavior.
  
! '-fdiagnostics-show-location=every-line'
       Only meaningful in line-wrapping mode.  Instructs the diagnostic
       messages reporter to emit the same source location information (as
       prefix) for physical lines that result from the process of breaking
       a message which is too long to fit on a single line.
  
! '-fdiagnostics-color[=WHEN]'
! '-fno-diagnostics-color'
!      Use color in diagnostics.  WHEN is 'never', 'always', or 'auto'.
!      The default depends on how the compiler has been configured, it can
!      be any of the above WHEN options or also 'never' if 'GCC_COLORS'
!      environment variable isn't present in the environment, and 'auto'
!      otherwise.  'auto' means to use color only when the standard error
!      is a terminal.  The forms '-fdiagnostics-color' and
!      '-fno-diagnostics-color' are aliases for
!      '-fdiagnostics-color=always' and '-fdiagnostics-color=never',
       respectively.
  
!      The colors are defined by the environment variable 'GCC_COLORS'.
       Its value is a colon-separated list of capabilities and Select
!      Graphic Rendition (SGR) substrings.  SGR commands are interpreted
       by the terminal or terminal emulator.  (See the section in the
       documentation of your text terminal for permitted values and their
       meanings as character attributes.)  These substring values are
       integers in decimal representation and can be concatenated with
!      semicolons.  Common values to concatenate include '1' for bold, '4'
!      for underline, '5' for blink, '7' for inverse, '39' for default
!      foreground color, '30' to '37' for foreground colors, '90' to '97'
!      for 16-color mode foreground colors, '38;5;0' to '38;5;255' for
!      88-color and 256-color modes foreground colors, '49' for default
!      background color, '40' to '47' for background colors, '100' to
!      '107' for 16-color mode background colors, and '48;5;0' to
!      '48;5;255' for 88-color and 256-color modes background colors.
  
!      The default 'GCC_COLORS' is
            error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01
!      where '01;31' is bold red, '01;35' is bold magenta, '01;36' is bold
!      cyan, '01;32' is bold green and '01' is bold.  Setting 'GCC_COLORS'
!      to the empty string disables colors.  Supported capabilities are as
!      follows.
  
!      'error='
            SGR substring for error: markers.
  
!      'warning='
            SGR substring for warning: markers.
  
!      'note='
            SGR substring for note: markers.
  
!      'caret='
            SGR substring for caret line.
  
!      'locus='
!           SGR substring for location information, 'file:line' or
!           'file:line:column' etc.
  
!      'quote='
            SGR substring for information printed within quotes.
  
! '-fno-diagnostics-show-option'
       By default, each diagnostic emitted includes text indicating the
       command-line option that directly controls the diagnostic (if such
       an option is known to the diagnostic machinery).  Specifying the
!      '-fno-diagnostics-show-option' flag suppresses that behavior.
  
! '-fno-diagnostics-show-caret'
       By default, each diagnostic emitted includes the original source
!      line and a caret '^' indicating the column.  This option suppresses
!      this information.  The source line is truncated to N characters, if
!      the '-fmessage-length=n' option is given.  When the output is done
!      to the terminal, the width is limited to the width given by the
!      'COLUMNS' environment variable or, if not set, to the terminal
!      width.
  
  
  File: gcc.info,  Node: Warning Options,  Next: Debugging Options,  Prev: Diagnostic Message Formatting Options,  Up: Invoking GCC
*************** an error.
*** 3406,3531 ****
   The following language-independent options do not enable specific
  warnings but control the kinds of diagnostics produced by GCC.
  
! `-fsyntax-only'
       Check the code for syntax errors, but don't do anything beyond
       that.
  
! `-fmax-errors=N'
       Limits the maximum number of error messages to N, at which point
       GCC bails out rather than attempting to continue processing the
       source code.  If N is 0 (the default), there is no limit on the
!      number of error messages produced.  If `-Wfatal-errors' is also
!      specified, then `-Wfatal-errors' takes precedence over this option.
  
! `-w'
       Inhibit all warning messages.
  
! `-Werror'
       Make all warnings into errors.
  
! `-Werror='
       Make the specified warning into an error.  The specifier for a
!      warning is appended; for example `-Werror=switch' turns the
!      warnings controlled by `-Wswitch' into errors.  This switch takes a
!      negative form, to be used to negate `-Werror' for specific
!      warnings; for example `-Wno-error=switch' makes `-Wswitch'
!      warnings not be errors, even when `-Werror' is in effect.
  
       The warning message for each controllable warning includes the
       option that controls the warning.  That option can then be used
!      with `-Werror=' and `-Wno-error=' as described above.  (Printing
!      of the option in the warning message can be disabled using the
!      `-fno-diagnostics-show-option' flag.)
  
!      Note that specifying `-Werror='FOO automatically implies `-W'FOO.
!      However, `-Wno-error='FOO does not imply anything.
  
! `-Wfatal-errors'
       This option causes the compiler to abort compilation on the first
       error occurred rather than trying to keep going and printing
       further error messages.
  
- 
   You can request many specific warnings with options beginning with
! `-W', for example `-Wimplicit' to request warnings on implicit
  declarations.  Each of these specific warning options also has a
! negative form beginning `-Wno-' to turn off warnings; for example,
! `-Wno-implicit'.  This manual lists only one of the two forms,
! whichever is not the default.  For further language-specific options
! also refer to *note C++ Dialect Options:: and *note Objective-C and
! Objective-C++ Dialect Options::.
  
!  Some options, such as `-Wall' and `-Wextra', turn on other options,
! such as `-Wunused', which may turn on further options, such as
! `-Wunused-value'. The combined effect of positive and negative forms is
  that more specific options have priority over less specific ones,
! independently of their position in the command-line. For options of the
! same specificity, the last one takes effect. Options enabled or
! disabled via pragmas (*note Diagnostic Pragmas::) take effect as if
! they appeared at the end of the command-line.
  
   When an unrecognized warning option is requested (e.g.,
! `-Wunknown-warning'), GCC emits a diagnostic stating that the option is
! not recognized.  However, if the `-Wno-' form is used, the behavior is
! slightly different: no diagnostic is produced for
! `-Wno-unknown-warning' unless other diagnostics are being produced.
! This allows the use of new `-Wno-' options with old compilers, but if
! something goes wrong, the compiler warns that an unrecognized option is
! present.
  
! `-Wpedantic'
! `-pedantic'
!      Issue all the warnings demanded by strict ISO C and ISO C++;
!      reject all programs that use forbidden extensions, and some other
!      programs that do not follow ISO C and ISO C++.  For ISO C, follows
!      the version of the ISO C standard specified by any `-std' option
!      used.
  
       Valid ISO C and ISO C++ programs should compile properly with or
!      without this option (though a rare few require `-ansi' or a `-std'
!      option specifying the required version of ISO C).  However,
!      without this option, certain GNU extensions and traditional C and
!      C++ features are supported as well.  With this option, they are
       rejected.
  
!      `-Wpedantic' does not cause warning messages for use of the
!      alternate keywords whose names begin and end with `__'.  Pedantic
       warnings are also disabled in the expression that follows
!      `__extension__'.  However, only system header files should use
!      these escape routes; application programs should avoid them.
!      *Note Alternate Keywords::.
  
!      Some users try to use `-Wpedantic' to check programs for strict ISO
       C conformance.  They soon find that it does not do quite what they
       want: it finds some non-ISO practices, but not all--only those for
       which ISO C _requires_ a diagnostic, and some others for which
       diagnostics have been added.
  
!      A feature to report any failure to conform to ISO C might be
!      useful in some instances, but would require considerable
!      additional work and would be quite different from `-Wpedantic'.
!      We don't have plans to support such a feature in the near future.
  
!      Where the standard specified with `-std' represents a GNU extended
!      dialect of C, such as `gnu90' or `gnu99', there is a corresponding
       "base standard", the version of ISO C on which the GNU extended
!      dialect is based.  Warnings from `-Wpedantic' are given where they
       are required by the base standard.  (It does not make sense for
       such warnings to be given only for features not in the specified
       GNU C dialect, since by definition the GNU dialects of C include
!      all features the compiler supports with the given option, and
!      there would be nothing to warn about.)
  
! `-pedantic-errors'
!      Give an error whenever the "base standard" (see `-Wpedantic')
       requires a diagnostic, in some cases where there is undefined
       behavior at compile-time and in some other cases that do not
       prevent compilation of programs that are valid according to the
!      standard. This is not equivalent to `-Werror=pedantic', since
       there are errors enabled by this option and not enabled by the
       latter and vice versa.
  
! `-Wall'
       This enables all the warnings about constructions that some users
       consider questionable, and that are easy to avoid (or modify to
       prevent the warning), even in conjunction with macros.  This also
--- 3390,3512 ----
   The following language-independent options do not enable specific
  warnings but control the kinds of diagnostics produced by GCC.
  
! '-fsyntax-only'
       Check the code for syntax errors, but don't do anything beyond
       that.
  
! '-fmax-errors=N'
       Limits the maximum number of error messages to N, at which point
       GCC bails out rather than attempting to continue processing the
       source code.  If N is 0 (the default), there is no limit on the
!      number of error messages produced.  If '-Wfatal-errors' is also
!      specified, then '-Wfatal-errors' takes precedence over this option.
  
! '-w'
       Inhibit all warning messages.
  
! '-Werror'
       Make all warnings into errors.
  
! '-Werror='
       Make the specified warning into an error.  The specifier for a
!      warning is appended; for example '-Werror=switch' turns the
!      warnings controlled by '-Wswitch' into errors.  This switch takes a
!      negative form, to be used to negate '-Werror' for specific
!      warnings; for example '-Wno-error=switch' makes '-Wswitch' warnings
!      not be errors, even when '-Werror' is in effect.
  
       The warning message for each controllable warning includes the
       option that controls the warning.  That option can then be used
!      with '-Werror=' and '-Wno-error=' as described above.  (Printing of
!      the option in the warning message can be disabled using the
!      '-fno-diagnostics-show-option' flag.)
  
!      Note that specifying '-Werror='FOO automatically implies '-W'FOO.
!      However, '-Wno-error='FOO does not imply anything.
  
! '-Wfatal-errors'
       This option causes the compiler to abort compilation on the first
       error occurred rather than trying to keep going and printing
       further error messages.
  
   You can request many specific warnings with options beginning with
! '-W', for example '-Wimplicit' to request warnings on implicit
  declarations.  Each of these specific warning options also has a
! negative form beginning '-Wno-' to turn off warnings; for example,
! '-Wno-implicit'.  This manual lists only one of the two forms, whichever
! is not the default.  For further language-specific options also refer to
! *note C++ Dialect Options:: and *note Objective-C and Objective-C++
! Dialect Options::.
  
!  Some options, such as '-Wall' and '-Wextra', turn on other options,
! such as '-Wunused', which may turn on further options, such as
! '-Wunused-value'.  The combined effect of positive and negative forms is
  that more specific options have priority over less specific ones,
! independently of their position in the command-line.  For options of the
! same specificity, the last one takes effect.  Options enabled or
! disabled via pragmas (*note Diagnostic Pragmas::) take effect as if they
! appeared at the end of the command-line.
  
   When an unrecognized warning option is requested (e.g.,
! '-Wunknown-warning'), GCC emits a diagnostic stating that the option is
! not recognized.  However, if the '-Wno-' form is used, the behavior is
! slightly different: no diagnostic is produced for '-Wno-unknown-warning'
! unless other diagnostics are being produced.  This allows the use of new
! '-Wno-' options with old compilers, but if something goes wrong, the
! compiler warns that an unrecognized option is present.
  
! '-Wpedantic'
! '-pedantic'
!      Issue all the warnings demanded by strict ISO C and ISO C++; reject
!      all programs that use forbidden extensions, and some other programs
!      that do not follow ISO C and ISO C++.  For ISO C, follows the
!      version of the ISO C standard specified by any '-std' option used.
  
       Valid ISO C and ISO C++ programs should compile properly with or
!      without this option (though a rare few require '-ansi' or a '-std'
!      option specifying the required version of ISO C).  However, without
!      this option, certain GNU extensions and traditional C and C++
!      features are supported as well.  With this option, they are
       rejected.
  
!      '-Wpedantic' does not cause warning messages for use of the
!      alternate keywords whose names begin and end with '__'.  Pedantic
       warnings are also disabled in the expression that follows
!      '__extension__'.  However, only system header files should use
!      these escape routes; application programs should avoid them.  *Note
!      Alternate Keywords::.
  
!      Some users try to use '-Wpedantic' to check programs for strict ISO
       C conformance.  They soon find that it does not do quite what they
       want: it finds some non-ISO practices, but not all--only those for
       which ISO C _requires_ a diagnostic, and some others for which
       diagnostics have been added.
  
!      A feature to report any failure to conform to ISO C might be useful
!      in some instances, but would require considerable additional work
!      and would be quite different from '-Wpedantic'.  We don't have
!      plans to support such a feature in the near future.
  
!      Where the standard specified with '-std' represents a GNU extended
!      dialect of C, such as 'gnu90' or 'gnu99', there is a corresponding
       "base standard", the version of ISO C on which the GNU extended
!      dialect is based.  Warnings from '-Wpedantic' are given where they
       are required by the base standard.  (It does not make sense for
       such warnings to be given only for features not in the specified
       GNU C dialect, since by definition the GNU dialects of C include
!      all features the compiler supports with the given option, and there
!      would be nothing to warn about.)
  
! '-pedantic-errors'
!      Give an error whenever the "base standard" (see '-Wpedantic')
       requires a diagnostic, in some cases where there is undefined
       behavior at compile-time and in some other cases that do not
       prevent compilation of programs that are valid according to the
!      standard.  This is not equivalent to '-Werror=pedantic', since
       there are errors enabled by this option and not enabled by the
       latter and vice versa.
  
! '-Wall'
       This enables all the warnings about constructions that some users
       consider questionable, and that are easy to avoid (or modify to
       prevent the warning), even in conjunction with macros.  This also
*************** present.
*** 3533,3542 ****
       Dialect Options:: and *note Objective-C and Objective-C++ Dialect
       Options::.
  
!      `-Wall' turns on the following warning flags:
  
            -Waddress
!           -Warray-bounds=1 (only with `-O2')
            -Wbool-compare
            -Wc++11-compat  -Wc++14-compat
            -Wchar-subscripts
--- 3514,3523 ----
       Dialect Options:: and *note Objective-C and Objective-C++ Dialect
       Options::.
  
!      '-Wall' turns on the following warning flags:
  
            -Waddress
!           -Warray-bounds=1 (only with -O2)
            -Wbool-compare
            -Wc++11-compat  -Wc++14-compat
            -Wchar-subscripts
*************** present.
*** 3548,3554 ****
            -Wimplicit-function-declaration (C and Objective-C only)
            -Winit-self (only for C++)
            -Wlogical-not-parentheses
!           -Wmain (only for C/ObjC and unless `-ffreestanding')
            -Wmaybe-uninitialized
            -Wmemset-transposed-args
            -Wmisleading-indentation (only for C/C++)
--- 3529,3535 ----
            -Wimplicit-function-declaration (C and Objective-C only)
            -Winit-self (only for C++)
            -Wlogical-not-parentheses
!           -Wmain (only for C/ObjC and unless -ffreestanding)
            -Wmaybe-uninitialized
            -Wmemset-transposed-args
            -Wmisleading-indentation (only for C/C++)
*************** present.
*** 3577,3593 ****
            -Wunused-variable
            -Wvolatile-register-var
  
!      Note that some warning flags are not implied by `-Wall'.  Some of
       them warn about constructions that users generally do not consider
       questionable, but which occasionally you might wish to check for;
!      others warn about constructions that are necessary or hard to
!      avoid in some cases, and there is no simple way to modify the code
!      to suppress the warning. Some of them are enabled by `-Wextra' but
       many of them must be enabled individually.
  
! `-Wextra'
       This enables some extra warning flags that are not enabled by
!      `-Wall'. (This option used to be called `-W'.  The older name is
       still supported, but the newer name is more descriptive.)
  
            -Wclobbered
--- 3558,3575 ----
            -Wunused-variable
            -Wvolatile-register-var
  
! 
!      Note that some warning flags are not implied by '-Wall'.  Some of
       them warn about constructions that users generally do not consider
       questionable, but which occasionally you might wish to check for;
!      others warn about constructions that are necessary or hard to avoid
!      in some cases, and there is no simple way to modify the code to
!      suppress the warning.  Some of them are enabled by '-Wextra' but
       many of them must be enabled individually.
  
! '-Wextra'
       This enables some extra warning flags that are not enabled by
!      '-Wall'.  (This option used to be called '-W'.  The older name is
       still supported, but the newer name is more descriptive.)
  
            -Wclobbered
*************** present.
*** 3601,3614 ****
            -Wtype-limits
            -Wuninitialized
            -Wshift-negative-value (in C++03 and in C99 and newer)
!           -Wunused-parameter (only with `-Wunused' or `-Wall')
!           -Wunused-but-set-parameter (only with `-Wunused' or `-Wall')
  
-      The option `-Wextra' also prints warning messages for the
-      following cases:
  
!         * A pointer is compared against integer zero with `<', `<=',
!           `>', or `>='.
  
          * (C++ only) An enumerator and a non-enumerator both appear in a
            conditional expression.
--- 3583,3597 ----
            -Wtype-limits
            -Wuninitialized
            -Wshift-negative-value (in C++03 and in C99 and newer)
!           -Wunused-parameter (only with -Wunused or -Wall)
!           -Wunused-but-set-parameter (only with -Wunused or -Wall)
  
  
!      The option '-Wextra' also prints warning messages for the following
!      cases:
! 
!         * A pointer is compared against integer zero with '<', '<=',
!           '>', or '>='.
  
          * (C++ only) An enumerator and a non-enumerator both appear in a
            conditional expression.
*************** present.
*** 3616,3852 ****
          * (C++ only) Ambiguous virtual bases.
  
          * (C++ only) Subscripting an array that has been declared
!           `register'.
  
          * (C++ only) Taking the address of a variable that has been
!           declared `register'.
  
          * (C++ only) A base class is not initialized in a derived
            class's copy constructor.
  
! 
! `-Wchar-subscripts'
!      Warn if an array subscript has type `char'.  This is a common cause
       of error, as programmers often forget that this type is signed on
!      some machines.  This warning is enabled by `-Wall'.
  
! `-Wcomment'
!      Warn whenever a comment-start sequence `/*' appears in a `/*'
!      comment, or whenever a Backslash-Newline appears in a `//' comment.
!      This warning is enabled by `-Wall'.
  
! `-Wchkp'
!      Warn about an invalid memory access that is found by Pointer
!      Bounds Checker (`-fcheck-pointer-bounds').
  
! `-Wno-coverage-mismatch'
       Warn if feedback profiles do not match when using the
!      `-fprofile-use' option.  If a source file is changed between
!      compiling with `-fprofile-gen' and with `-fprofile-use', the files
!      with the profile feedback can fail to match the source file and
!      GCC cannot use the profile feedback information.  By default, this
       warning is enabled and is treated as an error.
!      `-Wno-coverage-mismatch' can be used to disable the warning or
!      `-Wno-error=coverage-mismatch' can be used to disable the error.
!      Disabling the error for this warning can result in poorly
!      optimized code and is useful only in the case of very minor
!      changes such as bug fixes to an existing code-base.  Completely
!      disabling the warning is not recommended.
  
! `-Wno-cpp'
       (C, Objective-C, C++, Objective-C++ and Fortran only)
  
!      Suppress warning messages emitted by `#warning' directives.
  
! `-Wdouble-promotion (C, C++, Objective-C and Objective-C++ only)'
!      Give a warning when a value of type `float' is implicitly promoted
!      to `double'.  CPUs with a 32-bit "single-precision" floating-point
!      unit implement `float' in hardware, but emulate `double' in
!      software.  On such a machine, doing computations using `double'
       values is much more expensive because of the overhead required for
       software emulation.
  
!      It is easy to accidentally do computations with `double' because
!      floating-point literals are implicitly of type `double'.  For
       example, in:
            float area(float radius)
            {
               return 3.14159 * radius * radius;
            }
!      the compiler performs the entire computation with `double' because
!      the floating-point literal is a `double'.
  
! `-Wformat'
! `-Wformat=N'
!      Check calls to `printf' and `scanf', etc., to make sure that the
       arguments supplied have types appropriate to the format string
       specified, and that the conversions specified in the format string
!      make sense.  This includes standard functions, and others
!      specified by format attributes (*note Function Attributes::), in
!      the `printf', `scanf', `strftime' and `strfmon' (an X/Open
!      extension, not in the C standard) families (or other
!      target-specific families).  Which functions are checked without
!      format attributes having been specified depends on the standard
!      version selected, and such checks of functions without the
!      attribute specified are disabled by `-ffreestanding' or
!      `-fno-builtin'.
  
       The formats are checked against the format features supported by
       GNU libc version 2.2.  These include all ISO C90 and C99 features,
!      as well as features from the Single Unix Specification and some
!      BSD and GNU extensions.  Other library implementations may not
!      support all these features; GCC does not support warning about
!      features that go beyond a particular library's limitations.
!      However, if `-Wpedantic' is used with `-Wformat', warnings are
!      given about format features not in the selected standard version
!      (but not for `strfmon' formats, since those are not in any version
!      of the C standard).  *Note Options Controlling C Dialect: C
!      Dialect Options.
  
!     `-Wformat=1'
!     `-Wformat'
!           Option `-Wformat' is equivalent to `-Wformat=1', and
!           `-Wno-format' is equivalent to `-Wformat=0'.  Since
!           `-Wformat' also checks for null format arguments for several
!           functions, `-Wformat' also implies `-Wnonnull'.  Some aspects
!           of this level of format checking can be disabled by the
!           options: `-Wno-format-contains-nul',
!           `-Wno-format-extra-args', and `-Wno-format-zero-length'.
!           `-Wformat' is enabled by `-Wall'.
  
!     `-Wno-format-contains-nul'
!           If `-Wformat' is specified, do not warn about format strings
            that contain NUL bytes.
  
!     `-Wno-format-extra-args'
!           If `-Wformat' is specified, do not warn about excess
!           arguments to a `printf' or `scanf' format function.  The C
!           standard specifies that such arguments are ignored.
  
            Where the unused arguments lie between used arguments that are
!           specified with `$' operand number specifications, normally
            warnings are still given, since the implementation could not
!           know what type to pass to `va_arg' to skip the unused
!           arguments.  However, in the case of `scanf' formats, this
            option suppresses the warning if the unused arguments are all
            pointers, since the Single Unix Specification says that such
            unused arguments are allowed.
  
!     `-Wno-format-zero-length'
!           If `-Wformat' is specified, do not warn about zero-length
            formats.  The C standard specifies that zero-length formats
            are allowed.
  
!     `-Wformat=2'
!           Enable `-Wformat' plus additional format checks.  Currently
!           equivalent to `-Wformat -Wformat-nonliteral -Wformat-security
            -Wformat-y2k'.
  
!     `-Wformat-nonliteral'
!           If `-Wformat' is specified, also warn if the format string is
            not a string literal and so cannot be checked, unless the
!           format function takes its format arguments as a `va_list'.
  
!     `-Wformat-security'
!           If `-Wformat' is specified, also warn about uses of format
            functions that represent possible security problems.  At
!           present, this warns about calls to `printf' and `scanf'
            functions where the format string is not a string literal and
!           there are no format arguments, as in `printf (foo);'.  This
            may be a security hole if the format string came from
!           untrusted input and contains `%n'.  (This is currently a
!           subset of what `-Wformat-nonliteral' warns about, but in
!           future warnings may be added to `-Wformat-security' that are
!           not included in `-Wformat-nonliteral'.)
  
!     `-Wformat-signedness'
!           If `-Wformat' is specified, also warn if the format string
            requires an unsigned argument and the argument is signed and
            vice versa.
  
!     `-Wformat-y2k'
!           If `-Wformat' is specified, also warn about `strftime'
!           formats that may yield only a two-digit year.
  
! `-Wnonnull'
!      Warn about passing a null pointer for arguments marked as
!      requiring a non-null value by the `nonnull' function attribute.
  
!      `-Wnonnull' is included in `-Wall' and `-Wformat'.  It can be
!      disabled with the `-Wno-nonnull' option.
  
! `-Wnonnull-compare'
!      Warn when comparing an argument marked with the `nonnull' function
       attribute against null inside the function.
  
!      `-Wnonnull-compare' is included in `-Wall'.  It can be disabled
!      with the `-Wno-nonnull-compare' option.
  
! `-Wnull-dereference'
       Warn if the compiler detects paths that trigger erroneous or
       undefined behavior due to dereferencing a null pointer.  This
!      option is only active when `-fdelete-null-pointer-checks' is
       active, which is enabled by optimizations in most targets.  The
       precision of the warnings depends on the optimization options used.
  
! `-Winit-self (C, C++, Objective-C and Objective-C++ only)'
       Warn about uninitialized variables that are initialized with
       themselves.  Note this option can only be used with the
!      `-Wuninitialized' option.
  
!      For example, GCC warns about `i' being uninitialized in the
!      following snippet only when `-Winit-self' has been specified:
            int f()
            {
              int i = i;
              return i;
            }
  
!      This warning is enabled by `-Wall' in C++.
  
! `-Wimplicit-int (C and Objective-C only)'
       Warn when a declaration does not specify a type.  This warning is
!      enabled by `-Wall'.
  
! `-Wimplicit-function-declaration (C and Objective-C only)'
       Give a warning whenever a function is used before being declared.
!      In C99 mode (`-std=c99' or `-std=gnu99'), this warning is enabled
!      by default and it is made into an error by `-pedantic-errors'.
!      This warning is also enabled by `-Wall'.
  
! `-Wimplicit (C and Objective-C only)'
!      Same as `-Wimplicit-int' and `-Wimplicit-function-declaration'.
!      This warning is enabled by `-Wall'.
  
! `-Wignored-qualifiers (C and C++ only)'
       Warn if the return type of a function has a type qualifier such as
!      `const'.  For ISO C such a type qualifier has no effect, since the
       value returned by a function is not an lvalue.  For C++, the
!      warning is only emitted for scalar types or `void'.  ISO C
!      prohibits qualified `void' return types on function definitions,
!      so such return types always receive a warning even without this
       option.
  
!      This warning is also enabled by `-Wextra'.
  
! `-Wignored-attributes (C and C++ only)'
       Warn when an attribute is ignored.  This is different from the
!      `-Wattributes' option in that it warns whenever the compiler
       decides to drop an attribute, not that the attribute is either
       unknown, used in a wrong place, etc.  This warning is enabled by
       default.
  
! `-Wmain'
!      Warn if the type of `main' is suspicious.  `main' should be a
       function with external linkage, returning int, taking either zero
       arguments, two, or three arguments of appropriate types.  This
       warning is enabled by default in C++ and is enabled by either
!      `-Wall' or `-Wpedantic'.
  
! `-Wmisleading-indentation (C and C++ only)'
       Warn when the indentation of the code does not reflect the block
!      structure.  Specifically, a warning is issued for `if', `else',
!      `while', and `for' clauses with a guarded statement that does not
       use braces, followed by an unguarded statement with the same
       indentation.
  
--- 3599,3831 ----
          * (C++ only) Ambiguous virtual bases.
  
          * (C++ only) Subscripting an array that has been declared
!           'register'.
  
          * (C++ only) Taking the address of a variable that has been
!           declared 'register'.
  
          * (C++ only) A base class is not initialized in a derived
            class's copy constructor.
  
! '-Wchar-subscripts'
!      Warn if an array subscript has type 'char'.  This is a common cause
       of error, as programmers often forget that this type is signed on
!      some machines.  This warning is enabled by '-Wall'.
  
! '-Wcomment'
!      Warn whenever a comment-start sequence '/*' appears in a '/*'
!      comment, or whenever a Backslash-Newline appears in a '//' comment.
!      This warning is enabled by '-Wall'.
  
! '-Wchkp'
!      Warn about an invalid memory access that is found by Pointer Bounds
!      Checker ('-fcheck-pointer-bounds').
  
! '-Wno-coverage-mismatch'
       Warn if feedback profiles do not match when using the
!      '-fprofile-use' option.  If a source file is changed between
!      compiling with '-fprofile-gen' and with '-fprofile-use', the files
!      with the profile feedback can fail to match the source file and GCC
!      cannot use the profile feedback information.  By default, this
       warning is enabled and is treated as an error.
!      '-Wno-coverage-mismatch' can be used to disable the warning or
!      '-Wno-error=coverage-mismatch' can be used to disable the error.
!      Disabling the error for this warning can result in poorly optimized
!      code and is useful only in the case of very minor changes such as
!      bug fixes to an existing code-base.  Completely disabling the
!      warning is not recommended.
  
! '-Wno-cpp'
       (C, Objective-C, C++, Objective-C++ and Fortran only)
  
!      Suppress warning messages emitted by '#warning' directives.
  
! '-Wdouble-promotion (C, C++, Objective-C and Objective-C++ only)'
!      Give a warning when a value of type 'float' is implicitly promoted
!      to 'double'.  CPUs with a 32-bit "single-precision" floating-point
!      unit implement 'float' in hardware, but emulate 'double' in
!      software.  On such a machine, doing computations using 'double'
       values is much more expensive because of the overhead required for
       software emulation.
  
!      It is easy to accidentally do computations with 'double' because
!      floating-point literals are implicitly of type 'double'.  For
       example, in:
            float area(float radius)
            {
               return 3.14159 * radius * radius;
            }
!      the compiler performs the entire computation with 'double' because
!      the floating-point literal is a 'double'.
  
! '-Wformat'
! '-Wformat=N'
!      Check calls to 'printf' and 'scanf', etc., to make sure that the
       arguments supplied have types appropriate to the format string
       specified, and that the conversions specified in the format string
!      make sense.  This includes standard functions, and others specified
!      by format attributes (*note Function Attributes::), in the
!      'printf', 'scanf', 'strftime' and 'strfmon' (an X/Open extension,
!      not in the C standard) families (or other target-specific
!      families).  Which functions are checked without format attributes
!      having been specified depends on the standard version selected, and
!      such checks of functions without the attribute specified are
!      disabled by '-ffreestanding' or '-fno-builtin'.
  
       The formats are checked against the format features supported by
       GNU libc version 2.2.  These include all ISO C90 and C99 features,
!      as well as features from the Single Unix Specification and some BSD
!      and GNU extensions.  Other library implementations may not support
!      all these features; GCC does not support warning about features
!      that go beyond a particular library's limitations.  However, if
!      '-Wpedantic' is used with '-Wformat', warnings are given about
!      format features not in the selected standard version (but not for
!      'strfmon' formats, since those are not in any version of the C
!      standard).  *Note Options Controlling C Dialect: C Dialect Options.
  
!      '-Wformat=1'
!      '-Wformat'
!           Option '-Wformat' is equivalent to '-Wformat=1', and
!           '-Wno-format' is equivalent to '-Wformat=0'.  Since '-Wformat'
!           also checks for null format arguments for several functions,
!           '-Wformat' also implies '-Wnonnull'.  Some aspects of this
!           level of format checking can be disabled by the options:
!           '-Wno-format-contains-nul', '-Wno-format-extra-args', and
!           '-Wno-format-zero-length'.  '-Wformat' is enabled by '-Wall'.
  
!      '-Wno-format-contains-nul'
!           If '-Wformat' is specified, do not warn about format strings
            that contain NUL bytes.
  
!      '-Wno-format-extra-args'
!           If '-Wformat' is specified, do not warn about excess arguments
!           to a 'printf' or 'scanf' format function.  The C standard
!           specifies that such arguments are ignored.
  
            Where the unused arguments lie between used arguments that are
!           specified with '$' operand number specifications, normally
            warnings are still given, since the implementation could not
!           know what type to pass to 'va_arg' to skip the unused
!           arguments.  However, in the case of 'scanf' formats, this
            option suppresses the warning if the unused arguments are all
            pointers, since the Single Unix Specification says that such
            unused arguments are allowed.
  
!      '-Wno-format-zero-length'
!           If '-Wformat' is specified, do not warn about zero-length
            formats.  The C standard specifies that zero-length formats
            are allowed.
  
!      '-Wformat=2'
!           Enable '-Wformat' plus additional format checks.  Currently
!           equivalent to '-Wformat -Wformat-nonliteral -Wformat-security
            -Wformat-y2k'.
  
!      '-Wformat-nonliteral'
!           If '-Wformat' is specified, also warn if the format string is
            not a string literal and so cannot be checked, unless the
!           format function takes its format arguments as a 'va_list'.
  
!      '-Wformat-security'
!           If '-Wformat' is specified, also warn about uses of format
            functions that represent possible security problems.  At
!           present, this warns about calls to 'printf' and 'scanf'
            functions where the format string is not a string literal and
!           there are no format arguments, as in 'printf (foo);'.  This
            may be a security hole if the format string came from
!           untrusted input and contains '%n'.  (This is currently a
!           subset of what '-Wformat-nonliteral' warns about, but in
!           future warnings may be added to '-Wformat-security' that are
!           not included in '-Wformat-nonliteral'.)
  
!      '-Wformat-signedness'
!           If '-Wformat' is specified, also warn if the format string
            requires an unsigned argument and the argument is signed and
            vice versa.
  
!      '-Wformat-y2k'
!           If '-Wformat' is specified, also warn about 'strftime' formats
!           that may yield only a two-digit year.
  
! '-Wnonnull'
!      Warn about passing a null pointer for arguments marked as requiring
!      a non-null value by the 'nonnull' function attribute.
  
!      '-Wnonnull' is included in '-Wall' and '-Wformat'.  It can be
!      disabled with the '-Wno-nonnull' option.
  
! '-Wnonnull-compare'
!      Warn when comparing an argument marked with the 'nonnull' function
       attribute against null inside the function.
  
!      '-Wnonnull-compare' is included in '-Wall'.  It can be disabled
!      with the '-Wno-nonnull-compare' option.
  
! '-Wnull-dereference'
       Warn if the compiler detects paths that trigger erroneous or
       undefined behavior due to dereferencing a null pointer.  This
!      option is only active when '-fdelete-null-pointer-checks' is
       active, which is enabled by optimizations in most targets.  The
       precision of the warnings depends on the optimization options used.
  
! '-Winit-self (C, C++, Objective-C and Objective-C++ only)'
       Warn about uninitialized variables that are initialized with
       themselves.  Note this option can only be used with the
!      '-Wuninitialized' option.
  
!      For example, GCC warns about 'i' being uninitialized in the
!      following snippet only when '-Winit-self' has been specified:
            int f()
            {
              int i = i;
              return i;
            }
  
!      This warning is enabled by '-Wall' in C++.
  
! '-Wimplicit-int (C and Objective-C only)'
       Warn when a declaration does not specify a type.  This warning is
!      enabled by '-Wall'.
  
! '-Wimplicit-function-declaration (C and Objective-C only)'
       Give a warning whenever a function is used before being declared.
!      In C99 mode ('-std=c99' or '-std=gnu99'), this warning is enabled
!      by default and it is made into an error by '-pedantic-errors'.
!      This warning is also enabled by '-Wall'.
  
! '-Wimplicit (C and Objective-C only)'
!      Same as '-Wimplicit-int' and '-Wimplicit-function-declaration'.
!      This warning is enabled by '-Wall'.
  
! '-Wignored-qualifiers (C and C++ only)'
       Warn if the return type of a function has a type qualifier such as
!      'const'.  For ISO C such a type qualifier has no effect, since the
       value returned by a function is not an lvalue.  For C++, the
!      warning is only emitted for scalar types or 'void'.  ISO C
!      prohibits qualified 'void' return types on function definitions, so
!      such return types always receive a warning even without this
       option.
  
!      This warning is also enabled by '-Wextra'.
  
! '-Wignored-attributes (C and C++ only)'
       Warn when an attribute is ignored.  This is different from the
!      '-Wattributes' option in that it warns whenever the compiler
       decides to drop an attribute, not that the attribute is either
       unknown, used in a wrong place, etc.  This warning is enabled by
       default.
  
! '-Wmain'
!      Warn if the type of 'main' is suspicious.  'main' should be a
       function with external linkage, returning int, taking either zero
       arguments, two, or three arguments of appropriate types.  This
       warning is enabled by default in C++ and is enabled by either
!      '-Wall' or '-Wpedantic'.
  
! '-Wmisleading-indentation (C and C++ only)'
       Warn when the indentation of the code does not reflect the block
!      structure.  Specifically, a warning is issued for 'if', 'else',
!      'while', and 'for' clauses with a guarded statement that does not
       use braces, followed by an unguarded statement with the same
       indentation.
  
*************** present.
*** 3858,3868 ****
                bar ();  /* Gotcha: this is not guarded by the "if".  */
  
       In the case of mixed tabs and spaces, the warning uses the
!      `-ftabstop=' option to determine if the statements line up
       (defaulting to 8).
  
!      The warning is not issued for code involving multiline
!      preprocessor logic such as the following example.
  
              if (flagA)
                foo (0);
--- 3837,3847 ----
                bar ();  /* Gotcha: this is not guarded by the "if".  */
  
       In the case of mixed tabs and spaces, the warning uses the
!      '-ftabstop=' option to determine if the statements line up
       (defaulting to 8).
  
!      The warning is not issued for code involving multiline preprocessor
!      logic such as the following example.
  
              if (flagA)
                foo (0);
*************** present.
*** 3871,3908 ****
            #endif
                foo (1);
  
!      The warning is not issued after a `#line' directive, since this
       typically indicates autogenerated code, and no assumptions can be
       made about the layout of the file that the directive references.
  
!      This warning is enabled by `-Wall' in C and C++.
  
! `-Wmissing-braces'
       Warn if an aggregate or union initializer is not fully bracketed.
!      In the following example, the initializer for `a' is not fully
!      bracketed, but that for `b' is fully bracketed.  This warning is
!      enabled by `-Wall' in C.
  
            int a[2][2] = { 0, 1, 2, 3 };
            int b[2][2] = { { 0, 1 }, { 2, 3 } };
  
!      This warning is enabled by `-Wall'.
  
! `-Wmissing-include-dirs (C, C++, Objective-C and Objective-C++ only)'
       Warn if a user-supplied include directory does not exist.
  
! `-Wparentheses'
       Warn if parentheses are omitted in certain contexts, such as when
       there is an assignment in a context where a truth value is
       expected, or when operators are nested whose precedence people
       often get confused about.
  
!      Also warn if a comparison like `x<=y<=z' appears; this is
!      equivalent to `(x<=y ? 1 : 0) <= z', which is a different
       interpretation from that of ordinary mathematical notation.
  
       Also warn about constructions where there may be confusion to which
!      `if' statement an `else' branch belongs.  Here is an example of
       such a case:
  
            {
--- 3850,3887 ----
            #endif
                foo (1);
  
!      The warning is not issued after a '#line' directive, since this
       typically indicates autogenerated code, and no assumptions can be
       made about the layout of the file that the directive references.
  
!      This warning is enabled by '-Wall' in C and C++.
  
! '-Wmissing-braces'
       Warn if an aggregate or union initializer is not fully bracketed.
!      In the following example, the initializer for 'a' is not fully
!      bracketed, but that for 'b' is fully bracketed.  This warning is
!      enabled by '-Wall' in C.
  
            int a[2][2] = { 0, 1, 2, 3 };
            int b[2][2] = { { 0, 1 }, { 2, 3 } };
  
!      This warning is enabled by '-Wall'.
  
! '-Wmissing-include-dirs (C, C++, Objective-C and Objective-C++ only)'
       Warn if a user-supplied include directory does not exist.
  
! '-Wparentheses'
       Warn if parentheses are omitted in certain contexts, such as when
       there is an assignment in a context where a truth value is
       expected, or when operators are nested whose precedence people
       often get confused about.
  
!      Also warn if a comparison like 'x<=y<=z' appears; this is
!      equivalent to '(x<=y ? 1 : 0) <= z', which is a different
       interpretation from that of ordinary mathematical notation.
  
       Also warn about constructions where there may be confusion to which
!      'if' statement an 'else' branch belongs.  Here is an example of
       such a case:
  
            {
*************** present.
*** 3913,3926 ****
                bar ();
            }
  
!      In C/C++, every `else' branch belongs to the innermost possible
!      `if' statement, which in this example is `if (b)'.  This is often
       not what the programmer expected, as illustrated in the above
       example by indentation the programmer chose.  When there is the
       potential for this confusion, GCC issues a warning when this flag
       is specified.  To eliminate the warning, add explicit braces around
!      the innermost `if' statement so there is no way the `else' can
!      belong to the enclosing `if'.  The resulting code looks like this:
  
            {
              if (a)
--- 3892,3905 ----
                bar ();
            }
  
!      In C/C++, every 'else' branch belongs to the innermost possible
!      'if' statement, which in this example is 'if (b)'.  This is often
       not what the programmer expected, as illustrated in the above
       example by indentation the programmer chose.  When there is the
       potential for this confusion, GCC issues a warning when this flag
       is specified.  To eliminate the warning, add explicit braces around
!      the innermost 'if' statement so there is no way the 'else' can
!      belong to the enclosing 'if'.  The resulting code looks like this:
  
            {
              if (a)
*************** present.
*** 3932,3946 ****
                }
            }
  
!      Also warn for dangerous uses of the GNU extension to `?:' with
!      omitted middle operand. When the condition in the `?': operator is
       a boolean expression, the omitted value is always 1.  Often
!      programmers expect it to be a value computed inside the
!      conditional expression instead.
  
!      This warning is enabled by `-Wall'.
  
! `-Wsequence-point'
       Warn about code that may have undefined semantics because of
       violations of sequence point rules in the C and C++ standards.
  
--- 3911,3925 ----
                }
            }
  
!      Also warn for dangerous uses of the GNU extension to '?:' with
!      omitted middle operand.  When the condition in the '?': operator is
       a boolean expression, the omitted value is always 1.  Often
!      programmers expect it to be a value computed inside the conditional
!      expression instead.
  
!      This warning is enabled by '-Wall'.
  
! '-Wsequence-point'
       Warn about code that may have undefined semantics because of
       violations of sequence point rules in the C and C++ standards.
  
*************** present.
*** 3950,3979 ****
       program: those executed before the sequence point, and those
       executed after it.  These occur after the evaluation of a full
       expression (one which is not part of a larger expression), after
!      the evaluation of the first operand of a `&&', `||', `? :' or `,'
       (comma) operator, before a function is called (but after the
       evaluation of its arguments and the expression denoting the called
!      function), and in certain other places.  Other than as expressed
!      by the sequence point rules, the order of evaluation of
!      subexpressions of an expression is not specified.  All these rules
!      describe only a partial order rather than a total order, since,
!      for example, if two functions are called within one expression
!      with no sequence point between them, the order in which the
!      functions are called is not specified.  However, the standards
!      committee have ruled that function calls do not overlap.
  
       It is not specified when between sequence points modifications to
!      the values of objects take effect.  Programs whose behavior
!      depends on this have undefined behavior; the C and C++ standards
!      specify that "Between the previous and next sequence point an
!      object shall have its stored value modified at most once by the
!      evaluation of an expression.  Furthermore, the prior value shall
!      be read only to determine the value to be stored.".  If a program
!      breaks these rules, the results on any particular implementation
!      are entirely unpredictable.
  
!      Examples of code with undefined behavior are `a = a++;', `a[n] =
!      b[n++]' and `a[i++] = i;'.  Some more complicated cases are not
       diagnosed by this option, and it may give an occasional false
       positive result, but in general it has been found fairly effective
       at detecting this sort of problem in programs.
--- 3929,3958 ----
       program: those executed before the sequence point, and those
       executed after it.  These occur after the evaluation of a full
       expression (one which is not part of a larger expression), after
!      the evaluation of the first operand of a '&&', '||', '? :' or ','
       (comma) operator, before a function is called (but after the
       evaluation of its arguments and the expression denoting the called
!      function), and in certain other places.  Other than as expressed by
!      the sequence point rules, the order of evaluation of subexpressions
!      of an expression is not specified.  All these rules describe only a
!      partial order rather than a total order, since, for example, if two
!      functions are called within one expression with no sequence point
!      between them, the order in which the functions are called is not
!      specified.  However, the standards committee have ruled that
!      function calls do not overlap.
  
       It is not specified when between sequence points modifications to
!      the values of objects take effect.  Programs whose behavior depends
!      on this have undefined behavior; the C and C++ standards specify
!      that "Between the previous and next sequence point an object shall
!      have its stored value modified at most once by the evaluation of an
!      expression.  Furthermore, the prior value shall be read only to
!      determine the value to be stored.".  If a program breaks these
!      rules, the results on any particular implementation are entirely
!      unpredictable.
  
!      Examples of code with undefined behavior are 'a = a++;', 'a[n] =
!      b[n++]' and 'a[i++] = i;'.  Some more complicated cases are not
       diagnosed by this option, and it may give an occasional false
       positive result, but in general it has been found fairly effective
       at detecting this sort of problem in programs.
*************** present.
*** 3982,4189 ****
       over the precise meaning of the sequence point rules in subtle
       cases.  Links to discussions of the problem, including proposed
       formal definitions, may be found on the GCC readings page, at
!      `http://gcc.gnu.org/readings.html'.
  
!      This warning is enabled by `-Wall' for C and C++.
  
! `-Wno-return-local-addr'
       Do not warn about returning a pointer (or in C++, a reference) to a
       variable that goes out of scope after the function returns.
  
! `-Wreturn-type'
       Warn whenever a function is defined with a return type that
!      defaults to `int'.  Also warn about any `return' statement with no
!      return value in a function whose return type is not `void'
!      (falling off the end of the function body is considered returning
!      without a value), and about a `return' statement with an
!      expression in a function whose return type is `void'.
  
       For C++, a function without return type always produces a
!      diagnostic message, even when `-Wno-return-type' is specified.
!      The only exceptions are `main' and functions defined in system
!      headers.
  
!      This warning is enabled by `-Wall'.
  
! `-Wshift-count-negative'
!      Warn if shift count is negative. This warning is enabled by
       default.
  
! `-Wshift-count-overflow'
!      Warn if shift count >= width of type. This warning is enabled by
       default.
  
! `-Wshift-negative-value'
       Warn if left shifting a negative value.  This warning is enabled by
!      `-Wextra' in C99 and C++11 modes (and newer).
  
! `-Wshift-overflow'
! `-Wshift-overflow=N'
       Warn about left shift overflows.  This warning is enabled by
       default in C99 and C++11 modes (and newer).
  
!     `-Wshift-overflow=1'
!           This is the warning level of `-Wshift-overflow' and is enabled
            by default in C99 and C++11 modes (and newer).  This warning
            level does not warn about left-shifting 1 into the sign bit.
!           (However, in C, such an overflow is still rejected in
!           contexts where an integer constant expression is required.)
  
!     `-Wshift-overflow=2'
            This warning level also warns about left-shifting 1 into the
            sign bit, unless C++14 mode is active.
  
! `-Wswitch'
!      Warn whenever a `switch' statement has an index of enumerated type
!      and lacks a `case' for one or more of the named codes of that
!      enumeration.  (The presence of a `default' label prevents this
!      warning.)  `case' labels outside the enumeration range also
!      provoke warnings when this option is used (even if there is a
!      `default' label).  This warning is enabled by `-Wall'.
  
! `-Wswitch-default'
!      Warn whenever a `switch' statement does not have a `default' case.
  
! `-Wswitch-enum'
!      Warn whenever a `switch' statement has an index of enumerated type
!      and lacks a `case' for one or more of the named codes of that
!      enumeration.  `case' labels outside the enumeration range also
       provoke warnings when this option is used.  The only difference
!      between `-Wswitch' and this option is that this option gives a
       warning about an omitted enumeration code even if there is a
!      `default' label.
  
! `-Wswitch-bool'
!      Warn whenever a `switch' statement has an index of boolean type
!      and the case values are outside the range of a boolean type.  It
!      is possible to suppress this warning by casting the controlling
!      expression to a type other than `bool'.  For example:
            switch ((int) (a == 4))
              {
              ...
              }
       This warning is enabled by default for C and C++ programs.
  
! `-Wsync-nand (C and C++ only)'
!      Warn when `__sync_fetch_and_nand' and `__sync_nand_and_fetch'
       built-in functions are used.  These functions changed semantics in
       GCC 4.4.
  
! `-Wtrigraphs'
!      Warn if any trigraphs are encountered that might change the
!      meaning of the program (trigraphs within comments are not warned
!      about).  This warning is enabled by `-Wall'.
  
! `-Wunused-but-set-parameter'
       Warn whenever a function parameter is assigned to, but otherwise
       unused (aside from its declaration).
  
!      To suppress this warning use the `unused' attribute (*note
!      Variable Attributes::).
  
!      This warning is also enabled by `-Wunused' together with `-Wextra'.
  
! `-Wunused-but-set-variable'
       Warn whenever a local variable is assigned to, but otherwise unused
!      (aside from its declaration).  This warning is enabled by `-Wall'.
  
!      To suppress this warning use the `unused' attribute (*note
!      Variable Attributes::).
  
!      This warning is also enabled by `-Wunused', which is enabled by
!      `-Wall'.
  
! `-Wunused-function'
       Warn whenever a static function is declared but not defined or a
       non-inline static function is unused.  This warning is enabled by
!      `-Wall'.
  
! `-Wunused-label'
       Warn whenever a label is declared but not used.  This warning is
!      enabled by `-Wall'.
  
!      To suppress this warning use the `unused' attribute (*note
!      Variable Attributes::).
  
! `-Wunused-local-typedefs (C, Objective-C, C++ and Objective-C++ only)'
       Warn when a typedef locally defined in a function is not used.
!      This warning is enabled by `-Wall'.
  
! `-Wunused-parameter'
       Warn whenever a function parameter is unused aside from its
       declaration.
  
!      To suppress this warning use the `unused' attribute (*note
!      Variable Attributes::).
  
! `-Wno-unused-result'
       Do not warn if a caller of a function marked with attribute
!      `warn_unused_result' (*note Function Attributes::) does not use
!      its return value. The default is `-Wunused-result'.
  
! `-Wunused-variable'
       Warn whenever a local or static variable is unused aside from its
!      declaration. This option implies `-Wunused-const-variable=1' for C,
!      but not for C++. This warning is enabled by `-Wall'.
  
!      To suppress this warning use the `unused' attribute (*note
!      Variable Attributes::).
  
! `-Wunused-const-variable'
! `-Wunused-const-variable=N'
       Warn whenever a constant static variable is unused aside from its
!      declaration.  `-Wunused-const-variable=1' is enabled by
!      `-Wunused-variable' for C, but not for C++. In C this declares
       variable storage, but in C++ this is not an error since const
!      variables take the place of `#define's.
  
!      To suppress this warning use the `unused' attribute (*note
!      Variable Attributes::).
  
!     `-Wunused-const-variable=1'
            This is the warning level that is enabled by
!           `-Wunused-variable' for C.  It warns only about unused static
            const variables defined in the main compilation unit, but not
            about static const variables declared in any header included.
  
!     `-Wunused-const-variable=2'
            This warning level also warns for unused constant static
            variables in headers (excluding system headers).  This is the
!           warning level of `-Wunused-const-variable' and must be
!           explicitly requested since in C++ this isn't an error and in
!           C it might be harder to clean up all headers included.
  
! `-Wunused-value'
       Warn whenever a statement computes a result that is explicitly not
!      used. To suppress this warning cast the unused expression to
!      `void'. This includes an expression-statement or the left-hand
!      side of a comma expression that contains no side effects. For
!      example, an expression such as `x[i,j]' causes a warning, while
!      `x[(void)i,j]' does not.
  
!      This warning is enabled by `-Wall'.
  
! `-Wunused'
!      All the above `-Wunused' options combined.
  
       In order to get a warning about an unused function parameter, you
!      must either specify `-Wextra -Wunused' (note that `-Wall' implies
!      `-Wunused'), or separately specify `-Wunused-parameter'.
  
! `-Wuninitialized'
       Warn if an automatic variable is used without first being
!      initialized or if a variable may be clobbered by a `setjmp' call.
!      In C++, warn if a non-static reference or non-static `const' member
       appears in a class without constructors.
  
!      If you want to warn about code that uses the uninitialized value
!      of the variable in its own initializer, use the `-Winit-self'
!      option.
  
       These warnings occur for individual uninitialized or clobbered
       elements of structure, union or array variables as well as for
       variables that are uninitialized or clobbered as a whole.  They do
!      not occur for variables or elements declared `volatile'.  Because
       these warnings depend on optimization, the exact variables or
       elements for which there are warnings depends on the precise
       optimization options and version of GCC used.
--- 3961,4166 ----
       over the precise meaning of the sequence point rules in subtle
       cases.  Links to discussions of the problem, including proposed
       formal definitions, may be found on the GCC readings page, at
!      <http://gcc.gnu.org/readings.html>.
  
!      This warning is enabled by '-Wall' for C and C++.
  
! '-Wno-return-local-addr'
       Do not warn about returning a pointer (or in C++, a reference) to a
       variable that goes out of scope after the function returns.
  
! '-Wreturn-type'
       Warn whenever a function is defined with a return type that
!      defaults to 'int'.  Also warn about any 'return' statement with no
!      return value in a function whose return type is not 'void' (falling
!      off the end of the function body is considered returning without a
!      value), and about a 'return' statement with an expression in a
!      function whose return type is 'void'.
  
       For C++, a function without return type always produces a
!      diagnostic message, even when '-Wno-return-type' is specified.  The
!      only exceptions are 'main' and functions defined in system headers.
  
!      This warning is enabled by '-Wall'.
  
! '-Wshift-count-negative'
!      Warn if shift count is negative.  This warning is enabled by
       default.
  
! '-Wshift-count-overflow'
!      Warn if shift count >= width of type.  This warning is enabled by
       default.
  
! '-Wshift-negative-value'
       Warn if left shifting a negative value.  This warning is enabled by
!      '-Wextra' in C99 and C++11 modes (and newer).
  
! '-Wshift-overflow'
! '-Wshift-overflow=N'
       Warn about left shift overflows.  This warning is enabled by
       default in C99 and C++11 modes (and newer).
  
!      '-Wshift-overflow=1'
!           This is the warning level of '-Wshift-overflow' and is enabled
            by default in C99 and C++11 modes (and newer).  This warning
            level does not warn about left-shifting 1 into the sign bit.
!           (However, in C, such an overflow is still rejected in contexts
!           where an integer constant expression is required.)
  
!      '-Wshift-overflow=2'
            This warning level also warns about left-shifting 1 into the
            sign bit, unless C++14 mode is active.
  
! '-Wswitch'
!      Warn whenever a 'switch' statement has an index of enumerated type
!      and lacks a 'case' for one or more of the named codes of that
!      enumeration.  (The presence of a 'default' label prevents this
!      warning.)  'case' labels outside the enumeration range also provoke
!      warnings when this option is used (even if there is a 'default'
!      label).  This warning is enabled by '-Wall'.
  
! '-Wswitch-default'
!      Warn whenever a 'switch' statement does not have a 'default' case.
  
! '-Wswitch-enum'
!      Warn whenever a 'switch' statement has an index of enumerated type
!      and lacks a 'case' for one or more of the named codes of that
!      enumeration.  'case' labels outside the enumeration range also
       provoke warnings when this option is used.  The only difference
!      between '-Wswitch' and this option is that this option gives a
       warning about an omitted enumeration code even if there is a
!      'default' label.
  
! '-Wswitch-bool'
!      Warn whenever a 'switch' statement has an index of boolean type and
!      the case values are outside the range of a boolean type.  It is
!      possible to suppress this warning by casting the controlling
!      expression to a type other than 'bool'.  For example:
            switch ((int) (a == 4))
              {
              ...
              }
       This warning is enabled by default for C and C++ programs.
  
! '-Wsync-nand (C and C++ only)'
!      Warn when '__sync_fetch_and_nand' and '__sync_nand_and_fetch'
       built-in functions are used.  These functions changed semantics in
       GCC 4.4.
  
! '-Wtrigraphs'
!      Warn if any trigraphs are encountered that might change the meaning
!      of the program (trigraphs within comments are not warned about).
!      This warning is enabled by '-Wall'.
  
! '-Wunused-but-set-parameter'
       Warn whenever a function parameter is assigned to, but otherwise
       unused (aside from its declaration).
  
!      To suppress this warning use the 'unused' attribute (*note Variable
!      Attributes::).
  
!      This warning is also enabled by '-Wunused' together with '-Wextra'.
  
! '-Wunused-but-set-variable'
       Warn whenever a local variable is assigned to, but otherwise unused
!      (aside from its declaration).  This warning is enabled by '-Wall'.
  
!      To suppress this warning use the 'unused' attribute (*note Variable
!      Attributes::).
  
!      This warning is also enabled by '-Wunused', which is enabled by
!      '-Wall'.
  
! '-Wunused-function'
       Warn whenever a static function is declared but not defined or a
       non-inline static function is unused.  This warning is enabled by
!      '-Wall'.
  
! '-Wunused-label'
       Warn whenever a label is declared but not used.  This warning is
!      enabled by '-Wall'.
  
!      To suppress this warning use the 'unused' attribute (*note Variable
!      Attributes::).
  
! '-Wunused-local-typedefs (C, Objective-C, C++ and Objective-C++ only)'
       Warn when a typedef locally defined in a function is not used.
!      This warning is enabled by '-Wall'.
  
! '-Wunused-parameter'
       Warn whenever a function parameter is unused aside from its
       declaration.
  
!      To suppress this warning use the 'unused' attribute (*note Variable
!      Attributes::).
  
! '-Wno-unused-result'
       Do not warn if a caller of a function marked with attribute
!      'warn_unused_result' (*note Function Attributes::) does not use its
!      return value.  The default is '-Wunused-result'.
  
! '-Wunused-variable'
       Warn whenever a local or static variable is unused aside from its
!      declaration.  This option implies '-Wunused-const-variable=1' for
!      C, but not for C++.  This warning is enabled by '-Wall'.
  
!      To suppress this warning use the 'unused' attribute (*note Variable
!      Attributes::).
  
! '-Wunused-const-variable'
! '-Wunused-const-variable=N'
       Warn whenever a constant static variable is unused aside from its
!      declaration.  '-Wunused-const-variable=1' is enabled by
!      '-Wunused-variable' for C, but not for C++.  In C this declares
       variable storage, but in C++ this is not an error since const
!      variables take the place of '#define's.
  
!      To suppress this warning use the 'unused' attribute (*note Variable
!      Attributes::).
  
!      '-Wunused-const-variable=1'
            This is the warning level that is enabled by
!           '-Wunused-variable' for C. It warns only about unused static
            const variables defined in the main compilation unit, but not
            about static const variables declared in any header included.
  
!      '-Wunused-const-variable=2'
            This warning level also warns for unused constant static
            variables in headers (excluding system headers).  This is the
!           warning level of '-Wunused-const-variable' and must be
!           explicitly requested since in C++ this isn't an error and in C
!           it might be harder to clean up all headers included.
  
! '-Wunused-value'
       Warn whenever a statement computes a result that is explicitly not
!      used.  To suppress this warning cast the unused expression to
!      'void'.  This includes an expression-statement or the left-hand
!      side of a comma expression that contains no side effects.  For
!      example, an expression such as 'x[i,j]' causes a warning, while
!      'x[(void)i,j]' does not.
  
!      This warning is enabled by '-Wall'.
  
! '-Wunused'
!      All the above '-Wunused' options combined.
  
       In order to get a warning about an unused function parameter, you
!      must either specify '-Wextra -Wunused' (note that '-Wall' implies
!      '-Wunused'), or separately specify '-Wunused-parameter'.
  
! '-Wuninitialized'
       Warn if an automatic variable is used without first being
!      initialized or if a variable may be clobbered by a 'setjmp' call.
!      In C++, warn if a non-static reference or non-static 'const' member
       appears in a class without constructors.
  
!      If you want to warn about code that uses the uninitialized value of
!      the variable in its own initializer, use the '-Winit-self' option.
  
       These warnings occur for individual uninitialized or clobbered
       elements of structure, union or array variables as well as for
       variables that are uninitialized or clobbered as a whole.  They do
!      not occur for variables or elements declared 'volatile'.  Because
       these warnings depend on optimization, the exact variables or
       elements for which there are warnings depends on the precise
       optimization options and version of GCC used.
*************** present.
*** 4193,4204 ****
       computations may be deleted by data flow analysis before the
       warnings are printed.
  
! `-Winvalid-memory-model'
       Warn for invocations of *note __atomic Builtins::, *note __sync
       Builtins::, and the C11 atomic generic functions with a memory
       consistency argument that is either invalid for the operation or
!      outside the range of values of the `memory_order' enumeration.
!      For example, since the `__atomic_store' and `__atomic_store_n'
       built-ins are only defined for the relaxed, release, and
       sequentially consistent memory orders the following code is
       diagnosed:
--- 4170,4181 ----
       computations may be deleted by data flow analysis before the
       warnings are printed.
  
! '-Winvalid-memory-model'
       Warn for invocations of *note __atomic Builtins::, *note __sync
       Builtins::, and the C11 atomic generic functions with a memory
       consistency argument that is either invalid for the operation or
!      outside the range of values of the 'memory_order' enumeration.  For
!      example, since the '__atomic_store' and '__atomic_store_n'
       built-ins are only defined for the relaxed, release, and
       sequentially consistent memory orders the following code is
       diagnosed:
*************** present.
*** 4208,4224 ****
              __atomic_store_n (i, 0, memory_order_consume);
            }
  
!      `-Winvalid-memory-model' is enabled by default.
  
! `-Wmaybe-uninitialized'
       For an automatic variable, if there exists a path from the function
       entry to a use of the variable that is initialized, but there exist
       some other paths for which the variable is not initialized, the
!      compiler emits a warning if it cannot prove the uninitialized
!      paths are not executed at run time. These warnings are made
!      optional because GCC is not smart enough to see all the reasons
!      why the code might be correct in spite of appearing to have an
!      error.  Here is one example of how this can happen:
  
            {
              int x;
--- 4185,4201 ----
              __atomic_store_n (i, 0, memory_order_consume);
            }
  
!      '-Winvalid-memory-model' is enabled by default.
  
! '-Wmaybe-uninitialized'
       For an automatic variable, if there exists a path from the function
       entry to a use of the variable that is initialized, but there exist
       some other paths for which the variable is not initialized, the
!      compiler emits a warning if it cannot prove the uninitialized paths
!      are not executed at run time.  These warnings are made optional
!      because GCC is not smart enough to see all the reasons why the code
!      might be correct in spite of appearing to have an error.  Here is
!      one example of how this can happen:
  
            {
              int x;
*************** present.
*** 4233,4312 ****
              foo (x);
            }
  
!      If the value of `y' is always 1, 2 or 3, then `x' is always
!      initialized, but GCC doesn't know this. To suppress the warning,
       you need to provide a default case with assert(0) or similar code.
  
!      This option also warns when a non-volatile automatic variable
!      might be changed by a call to `longjmp'.  These warnings as well
!      are possible only in optimizing compilation.
  
!      The compiler sees only the calls to `setjmp'.  It cannot know
!      where `longjmp' will be called; in fact, a signal handler could
!      call it at any point in the code.  As a result, you may get a
!      warning even when there is in fact no problem because `longjmp'
!      cannot in fact be called at the place that would cause a problem.
  
       Some spurious warnings can be avoided if you declare all the
!      functions you use that never return as `noreturn'.  *Note Function
       Attributes::.
  
!      This warning is enabled by `-Wall' or `-Wextra'.
  
! `-Wunknown-pragmas'
!      Warn when a `#pragma' directive is encountered that is not
       understood by GCC.  If this command-line option is used, warnings
       are even issued for unknown pragmas in system header files.  This
!      is not the case if the warnings are only enabled by the `-Wall'
       command-line option.
  
! `-Wno-pragmas'
       Do not warn about misuses of pragmas, such as incorrect parameters,
       invalid syntax, or conflicts between pragmas.  See also
!      `-Wunknown-pragmas'.
  
! `-Wstrict-aliasing'
!      This option is only active when `-fstrict-aliasing' is active.  It
       warns about code that might break the strict aliasing rules that
!      the compiler is using for optimization.  The warning does not
!      catch all cases, but does attempt to catch the more common
!      pitfalls.  It is included in `-Wall'.  It is equivalent to
!      `-Wstrict-aliasing=3'
  
! `-Wstrict-aliasing=n'
!      This option is only active when `-fstrict-aliasing' is active.  It
       warns about code that might break the strict aliasing rules that
       the compiler is using for optimization.  Higher levels correspond
       to higher accuracy (fewer false positives).  Higher levels also
!      correspond to more effort, similar to the way `-O' works.
!      `-Wstrict-aliasing' is equivalent to `-Wstrict-aliasing=3'.
  
       Level 1: Most aggressive, quick, least accurate.  Possibly useful
!      when higher levels do not warn but `-fstrict-aliasing' still
!      breaks the code, as it has very few false negatives.  However, it
!      has many false positives.  Warns for all pointer conversions
!      between possibly incompatible types, even if never dereferenced.
!      Runs in the front end only.
  
       Level 2: Aggressive, quick, not too precise.  May still have many
       false positives (not as many as level 1 though), and few false
       negatives (but possibly more than level 1).  Unlike level 1, it
!      only warns when an address is taken.  Warns about incomplete
!      types.  Runs in the front end only.
  
!      Level 3 (default for `-Wstrict-aliasing'): Should have very few
       false positives and few false negatives.  Slightly slower than
       levels 1 or 2 when optimization is enabled.  Takes care of the
       common pun+dereference pattern in the front end:
!      `*(int*)&some_float'.  If optimization is enabled, it also runs in
       the back end, where it deals with multiple statement cases using
       flow-sensitive points-to information.  Only warns when the
       converted pointer is dereferenced.  Does not warn about incomplete
       types.
  
! `-Wstrict-overflow'
! `-Wstrict-overflow=N'
!      This option is only active when `-fstrict-overflow' is active.  It
       warns about cases where the compiler optimizes based on the
       assumption that signed overflow does not occur.  Note that it does
       not warn about all cases where the code might overflow: it only
--- 4210,4288 ----
              foo (x);
            }
  
!      If the value of 'y' is always 1, 2 or 3, then 'x' is always
!      initialized, but GCC doesn't know this.  To suppress the warning,
       you need to provide a default case with assert(0) or similar code.
  
!      This option also warns when a non-volatile automatic variable might
!      be changed by a call to 'longjmp'.  These warnings as well are
!      possible only in optimizing compilation.
  
!      The compiler sees only the calls to 'setjmp'.  It cannot know where
!      'longjmp' will be called; in fact, a signal handler could call it
!      at any point in the code.  As a result, you may get a warning even
!      when there is in fact no problem because 'longjmp' cannot in fact
!      be called at the place that would cause a problem.
  
       Some spurious warnings can be avoided if you declare all the
!      functions you use that never return as 'noreturn'.  *Note Function
       Attributes::.
  
!      This warning is enabled by '-Wall' or '-Wextra'.
  
! '-Wunknown-pragmas'
!      Warn when a '#pragma' directive is encountered that is not
       understood by GCC.  If this command-line option is used, warnings
       are even issued for unknown pragmas in system header files.  This
!      is not the case if the warnings are only enabled by the '-Wall'
       command-line option.
  
! '-Wno-pragmas'
       Do not warn about misuses of pragmas, such as incorrect parameters,
       invalid syntax, or conflicts between pragmas.  See also
!      '-Wunknown-pragmas'.
  
! '-Wstrict-aliasing'
!      This option is only active when '-fstrict-aliasing' is active.  It
       warns about code that might break the strict aliasing rules that
!      the compiler is using for optimization.  The warning does not catch
!      all cases, but does attempt to catch the more common pitfalls.  It
!      is included in '-Wall'.  It is equivalent to '-Wstrict-aliasing=3'
  
! '-Wstrict-aliasing=n'
!      This option is only active when '-fstrict-aliasing' is active.  It
       warns about code that might break the strict aliasing rules that
       the compiler is using for optimization.  Higher levels correspond
       to higher accuracy (fewer false positives).  Higher levels also
!      correspond to more effort, similar to the way '-O' works.
!      '-Wstrict-aliasing' is equivalent to '-Wstrict-aliasing=3'.
  
       Level 1: Most aggressive, quick, least accurate.  Possibly useful
!      when higher levels do not warn but '-fstrict-aliasing' still breaks
!      the code, as it has very few false negatives.  However, it has many
!      false positives.  Warns for all pointer conversions between
!      possibly incompatible types, even if never dereferenced.  Runs in
!      the front end only.
  
       Level 2: Aggressive, quick, not too precise.  May still have many
       false positives (not as many as level 1 though), and few false
       negatives (but possibly more than level 1).  Unlike level 1, it
!      only warns when an address is taken.  Warns about incomplete types.
!      Runs in the front end only.
  
!      Level 3 (default for '-Wstrict-aliasing'): Should have very few
       false positives and few false negatives.  Slightly slower than
       levels 1 or 2 when optimization is enabled.  Takes care of the
       common pun+dereference pattern in the front end:
!      '*(int*)&some_float'.  If optimization is enabled, it also runs in
       the back end, where it deals with multiple statement cases using
       flow-sensitive points-to information.  Only warns when the
       converted pointer is dereferenced.  Does not warn about incomplete
       types.
  
! '-Wstrict-overflow'
! '-Wstrict-overflow=N'
!      This option is only active when '-fstrict-overflow' is active.  It
       warns about cases where the compiler optimizes based on the
       assumption that signed overflow does not occur.  Note that it does
       not warn about all cases where the code might overflow: it only
*************** present.
*** 4323,4510 ****
       loop requires, in particular when determining whether a loop will
       be executed at all.
  
!     `-Wstrict-overflow=1'
!           Warn about cases that are both questionable and easy to
!           avoid.  For example,  with `-fstrict-overflow', the compiler
!           simplifies `x + 1 > x' to `1'.  This level of
!           `-Wstrict-overflow' is enabled by `-Wall'; higher levels are
!           not, and must be explicitly requested.
  
!     `-Wstrict-overflow=2'
            Also warn about other cases where a comparison is simplified
!           to a constant.  For example: `abs (x) >= 0'.  This can only be
!           simplified when `-fstrict-overflow' is in effect, because
!           `abs (INT_MIN)' overflows to `INT_MIN', which is less than
!           zero.  `-Wstrict-overflow' (with no level) is the same as
!           `-Wstrict-overflow=2'.
  
!     `-Wstrict-overflow=3'
            Also warn about other cases where a comparison is simplified.
!           For example: `x + 1 > 1' is simplified to `x > 0'.
  
!     `-Wstrict-overflow=4'
!           Also warn about other simplifications not covered by the
!           above cases.  For example: `(x * 10) / 5' is simplified to `x
!           * 2'.
  
!     `-Wstrict-overflow=5'
!           Also warn about cases where the compiler reduces the
!           magnitude of a constant involved in a comparison.  For
!           example: `x + 2 > y' is simplified to `x + 1 >= y'.  This is
!           reported only at the highest warning level because this
!           simplification applies to many comparisons, so this warning
!           level gives a very large number of false positives.
  
! `-Wsuggest-attribute=[pure|const|noreturn|format]'
!      Warn for cases where adding an attribute may be beneficial. The
       attributes currently supported are listed below.
  
!     `-Wsuggest-attribute=pure'
!     `-Wsuggest-attribute=const'
!     `-Wsuggest-attribute=noreturn'
            Warn about functions that might be candidates for attributes
!           `pure', `const' or `noreturn'.  The compiler only warns for
            functions visible in other compilation units or (in the case
!           of `pure' and `const') if it cannot prove that the function
!           returns normally. A function returns normally if it doesn't
            contain an infinite loop or return abnormally by throwing,
!           calling `abort' or trapping.  This analysis requires option
!           `-fipa-pure-const', which is enabled by default at `-O' and
            higher.  Higher optimization levels improve the accuracy of
            the analysis.
  
!     `-Wsuggest-attribute=format'
!     `-Wmissing-format-attribute'
            Warn about function pointers that might be candidates for
!           `format' attributes.  Note these are only possible
!           candidates, not absolute ones.  GCC guesses that function
!           pointers with `format' attributes that are used in
!           assignment, initialization, parameter passing or return
!           statements should have a corresponding `format' attribute in
!           the resulting type.  I.e. the left-hand side of the
!           assignment or initialization, the type of the parameter
!           variable, or the return type of the containing function
!           respectively should also have a `format' attribute to avoid
!           the warning.
  
            GCC also warns about function definitions that might be
!           candidates for `format' attributes.  Again, these are only
!           possible candidates.  GCC guesses that `format' attributes
            might be appropriate for any function that calls a function
!           like `vprintf' or `vscanf', but this might not always be the
!           case, and some functions for which `format' attributes are
            appropriate may not be detected.
  
! `-Wsuggest-final-types'
       Warn about types with virtual methods where code quality would be
!      improved if the type were declared with the C++11 `final'
       specifier, or, if possible, declared in an anonymous namespace.
       This allows GCC to more aggressively devirtualize the polymorphic
!      calls. This warning is more effective with link time optimization,
       where the information about the class hierarchy graph is more
       complete.
  
! `-Wsuggest-final-methods'
       Warn about virtual methods where code quality would be improved if
!      the method were declared with the C++11 `final' specifier, or, if
       possible, its type were declared in an anonymous namespace or with
!      the `final' specifier.  This warning is more effective with link
       time optimization, where the information about the class hierarchy
!      graph is more complete. It is recommended to first consider
!      suggestions of `-Wsuggest-final-types' and then rebuild with new
       annotations.
  
! `-Wsuggest-override'
       Warn about overriding virtual functions that are not marked with
       the override keyword.
  
! `-Warray-bounds'
! `-Warray-bounds=N'
!      This option is only active when `-ftree-vrp' is active (default
!      for `-O2' and above). It warns about subscripts to arrays that are
!      always out of bounds. This warning is enabled by `-Wall'.
  
!     `-Warray-bounds=1'
!           This is the warning level of `-Warray-bounds' and is enabled
!           by `-Wall'; higher levels are not, and must be explicitly
            requested.
  
!     `-Warray-bounds=2'
            This warning level also warns about out of bounds access for
            arrays at the end of a struct and for arrays accessed through
!           pointers. This warning level may give a larger number of
            false positives and is deactivated by default.
  
! `-Wbool-compare'
       Warn about boolean expression compared with an integer value
!      different from `true'/`false'.  For instance, the following
       comparison is always false:
            int n = 5;
            ...
            if ((n > 1) == 2) { ... }
!      This warning is enabled by `-Wall'.
  
! `-Wduplicated-cond'
       Warn about duplicated conditions in an if-else-if chain.  For
       instance, warn for the following code:
            if (p->q != NULL) { ... }
            else if (p->q != NULL) { ... }
  
! `-Wframe-address'
!      Warn when the `__builtin_frame_address' or
!      `__builtin_return_address' is called with an argument greater than
       0.  Such calls may return indeterminate values or crash the
!      program.  The warning is included in `-Wall'.
  
! `-Wno-discarded-qualifiers (C and Objective-C only)'
       Do not warn if type qualifiers on pointers are being discarded.
!      Typically, the compiler warns if a `const char *' variable is
!      passed to a function that takes a `char *' parameter.  This option
       can be used to suppress such a warning.
  
! `-Wno-discarded-array-qualifiers (C and Objective-C only)'
       Do not warn if type qualifiers on arrays which are pointer targets
!      are being discarded. Typically, the compiler warns if a `const int
!      (*)[]' variable is passed to a function that takes a `int (*)[]'
       parameter.  This option can be used to suppress such a warning.
  
! `-Wno-incompatible-pointer-types (C and Objective-C only)'
       Do not warn when there is a conversion between pointers that have
       incompatible types.  This warning is for cases not covered by
!      `-Wno-pointer-sign', which warns for pointer argument passing or
       assignment with different signedness.
  
! `-Wno-int-conversion (C and Objective-C only)'
       Do not warn about incompatible integer to pointer and pointer to
       integer conversions.  This warning is about implicit conversions;
!      for explicit conversions the warnings `-Wno-int-to-pointer-cast'
!      and `-Wno-pointer-to-int-cast' may be used.
  
! `-Wno-div-by-zero'
       Do not warn about compile-time integer division by zero.
!      Floating-point division by zero is not warned about, as it can be
!      a legitimate way of obtaining infinities and NaNs.
  
! `-Wsystem-headers'
       Print warning messages for constructs found in system header files.
       Warnings from system headers are normally suppressed, on the
       assumption that they usually do not indicate real problems and
       would only make the compiler output harder to read.  Using this
       command-line option tells GCC to emit warnings from system headers
!      as if they occurred in user code.  However, note that using
!      `-Wall' in conjunction with this option does _not_ warn about
!      unknown pragmas in system headers--for that, `-Wunknown-pragmas'
!      must also be used.
  
! `-Wtautological-compare'
       Warn if a self-comparison always evaluates to true or false.  This
       warning detects various mistakes such as:
            int i = 1;
            ...
            if (i > i) { ... }
!      This warning is enabled by `-Wall'.
  
! `-Wtrampolines'
       Warn about trampolines generated for pointers to nested functions.
       A trampoline is a small piece of data or code that is created at
       run time on the stack when the address of a nested function is
--- 4299,4486 ----
       loop requires, in particular when determining whether a loop will
       be executed at all.
  
!      '-Wstrict-overflow=1'
!           Warn about cases that are both questionable and easy to avoid.
!           For example, with '-fstrict-overflow', the compiler simplifies
!           'x + 1 > x' to '1'.  This level of '-Wstrict-overflow' is
!           enabled by '-Wall'; higher levels are not, and must be
!           explicitly requested.
  
!      '-Wstrict-overflow=2'
            Also warn about other cases where a comparison is simplified
!           to a constant.  For example: 'abs (x) >= 0'.  This can only be
!           simplified when '-fstrict-overflow' is in effect, because 'abs
!           (INT_MIN)' overflows to 'INT_MIN', which is less than zero.
!           '-Wstrict-overflow' (with no level) is the same as
!           '-Wstrict-overflow=2'.
  
!      '-Wstrict-overflow=3'
            Also warn about other cases where a comparison is simplified.
!           For example: 'x + 1 > 1' is simplified to 'x > 0'.
  
!      '-Wstrict-overflow=4'
!           Also warn about other simplifications not covered by the above
!           cases.  For example: '(x * 10) / 5' is simplified to 'x * 2'.
  
!      '-Wstrict-overflow=5'
!           Also warn about cases where the compiler reduces the magnitude
!           of a constant involved in a comparison.  For example: 'x + 2 >
!           y' is simplified to 'x + 1 >= y'.  This is reported only at
!           the highest warning level because this simplification applies
!           to many comparisons, so this warning level gives a very large
!           number of false positives.
  
! '-Wsuggest-attribute=[pure|const|noreturn|format]'
!      Warn for cases where adding an attribute may be beneficial.  The
       attributes currently supported are listed below.
  
!      '-Wsuggest-attribute=pure'
!      '-Wsuggest-attribute=const'
!      '-Wsuggest-attribute=noreturn'
! 
            Warn about functions that might be candidates for attributes
!           'pure', 'const' or 'noreturn'.  The compiler only warns for
            functions visible in other compilation units or (in the case
!           of 'pure' and 'const') if it cannot prove that the function
!           returns normally.  A function returns normally if it doesn't
            contain an infinite loop or return abnormally by throwing,
!           calling 'abort' or trapping.  This analysis requires option
!           '-fipa-pure-const', which is enabled by default at '-O' and
            higher.  Higher optimization levels improve the accuracy of
            the analysis.
  
!      '-Wsuggest-attribute=format'
!      '-Wmissing-format-attribute'
! 
            Warn about function pointers that might be candidates for
!           'format' attributes.  Note these are only possible candidates,
!           not absolute ones.  GCC guesses that function pointers with
!           'format' attributes that are used in assignment,
!           initialization, parameter passing or return statements should
!           have a corresponding 'format' attribute in the resulting type.
!           I.e. the left-hand side of the assignment or initialization,
!           the type of the parameter variable, or the return type of the
!           containing function respectively should also have a 'format'
!           attribute to avoid the warning.
  
            GCC also warns about function definitions that might be
!           candidates for 'format' attributes.  Again, these are only
!           possible candidates.  GCC guesses that 'format' attributes
            might be appropriate for any function that calls a function
!           like 'vprintf' or 'vscanf', but this might not always be the
!           case, and some functions for which 'format' attributes are
            appropriate may not be detected.
  
! '-Wsuggest-final-types'
       Warn about types with virtual methods where code quality would be
!      improved if the type were declared with the C++11 'final'
       specifier, or, if possible, declared in an anonymous namespace.
       This allows GCC to more aggressively devirtualize the polymorphic
!      calls.  This warning is more effective with link time optimization,
       where the information about the class hierarchy graph is more
       complete.
  
! '-Wsuggest-final-methods'
       Warn about virtual methods where code quality would be improved if
!      the method were declared with the C++11 'final' specifier, or, if
       possible, its type were declared in an anonymous namespace or with
!      the 'final' specifier.  This warning is more effective with link
       time optimization, where the information about the class hierarchy
!      graph is more complete.  It is recommended to first consider
!      suggestions of '-Wsuggest-final-types' and then rebuild with new
       annotations.
  
! '-Wsuggest-override'
       Warn about overriding virtual functions that are not marked with
       the override keyword.
  
! '-Warray-bounds'
! '-Warray-bounds=N'
!      This option is only active when '-ftree-vrp' is active (default for
!      '-O2' and above).  It warns about subscripts to arrays that are
!      always out of bounds.  This warning is enabled by '-Wall'.
  
!      '-Warray-bounds=1'
!           This is the warning level of '-Warray-bounds' and is enabled
!           by '-Wall'; higher levels are not, and must be explicitly
            requested.
  
!      '-Warray-bounds=2'
            This warning level also warns about out of bounds access for
            arrays at the end of a struct and for arrays accessed through
!           pointers.  This warning level may give a larger number of
            false positives and is deactivated by default.
  
! '-Wbool-compare'
       Warn about boolean expression compared with an integer value
!      different from 'true'/'false'.  For instance, the following
       comparison is always false:
            int n = 5;
            ...
            if ((n > 1) == 2) { ... }
!      This warning is enabled by '-Wall'.
  
! '-Wduplicated-cond'
       Warn about duplicated conditions in an if-else-if chain.  For
       instance, warn for the following code:
            if (p->q != NULL) { ... }
            else if (p->q != NULL) { ... }
  
! '-Wframe-address'
!      Warn when the '__builtin_frame_address' or
!      '__builtin_return_address' is called with an argument greater than
       0.  Such calls may return indeterminate values or crash the
!      program.  The warning is included in '-Wall'.
  
! '-Wno-discarded-qualifiers (C and Objective-C only)'
       Do not warn if type qualifiers on pointers are being discarded.
!      Typically, the compiler warns if a 'const char *' variable is
!      passed to a function that takes a 'char *' parameter.  This option
       can be used to suppress such a warning.
  
! '-Wno-discarded-array-qualifiers (C and Objective-C only)'
       Do not warn if type qualifiers on arrays which are pointer targets
!      are being discarded.  Typically, the compiler warns if a 'const int
!      (*)[]' variable is passed to a function that takes a 'int (*)[]'
       parameter.  This option can be used to suppress such a warning.
  
! '-Wno-incompatible-pointer-types (C and Objective-C only)'
       Do not warn when there is a conversion between pointers that have
       incompatible types.  This warning is for cases not covered by
!      '-Wno-pointer-sign', which warns for pointer argument passing or
       assignment with different signedness.
  
! '-Wno-int-conversion (C and Objective-C only)'
       Do not warn about incompatible integer to pointer and pointer to
       integer conversions.  This warning is about implicit conversions;
!      for explicit conversions the warnings '-Wno-int-to-pointer-cast'
!      and '-Wno-pointer-to-int-cast' may be used.
  
! '-Wno-div-by-zero'
       Do not warn about compile-time integer division by zero.
!      Floating-point division by zero is not warned about, as it can be a
!      legitimate way of obtaining infinities and NaNs.
  
! '-Wsystem-headers'
       Print warning messages for constructs found in system header files.
       Warnings from system headers are normally suppressed, on the
       assumption that they usually do not indicate real problems and
       would only make the compiler output harder to read.  Using this
       command-line option tells GCC to emit warnings from system headers
!      as if they occurred in user code.  However, note that using '-Wall'
!      in conjunction with this option does _not_ warn about unknown
!      pragmas in system headers--for that, '-Wunknown-pragmas' must also
!      be used.
  
! '-Wtautological-compare'
       Warn if a self-comparison always evaluates to true or false.  This
       warning detects various mistakes such as:
            int i = 1;
            ...
            if (i > i) { ... }
!      This warning is enabled by '-Wall'.
  
! '-Wtrampolines'
       Warn about trampolines generated for pointers to nested functions.
       A trampoline is a small piece of data or code that is created at
       run time on the stack when the address of a nested function is
*************** present.
*** 4514,4520 ****
       and thus requires the stack to be made executable in order for the
       program to work properly.
  
! `-Wfloat-equal'
       Warn if floating-point values are used in equality comparisons.
  
       The idea behind this is that sometimes it is convenient (for the
--- 4490,4496 ----
       and thus requires the stack to be made executable in order for the
       program to work properly.
  
! '-Wfloat-equal'
       Warn if floating-point values are used in equality comparisons.
  
       The idea behind this is that sometimes it is convenient (for the
*************** present.
*** 4523,4535 ****
       need to compute (by analyzing the code, or in some other way) the
       maximum or likely maximum error that the computation introduces,
       and allow for it when performing comparisons (and when producing
!      output, but that's a different problem).  In particular, instead
!      of testing for equality, you should check to see whether the two
       values have ranges that overlap; and this is done with the
       relational operators, so equality comparisons are probably
       mistaken.
  
! `-Wtraditional (C and Objective-C only)'
       Warn about certain constructs that behave differently in
       traditional and ISO C.  Also warn about ISO C constructs that have
       no traditional C equivalent, and/or problematic constructs that
--- 4499,4511 ----
       need to compute (by analyzing the code, or in some other way) the
       maximum or likely maximum error that the computation introduces,
       and allow for it when performing comparisons (and when producing
!      output, but that's a different problem).  In particular, instead of
!      testing for equality, you should check to see whether the two
       values have ranges that overlap; and this is done with the
       relational operators, so equality comparisons are probably
       mistaken.
  
! '-Wtraditional (C and Objective-C only)'
       Warn about certain constructs that behave differently in
       traditional and ISO C.  Also warn about ISO C constructs that have
       no traditional C equivalent, and/or problematic constructs that
*************** present.
*** 4541,4575 ****
  
          * In traditional C, some preprocessor directives did not exist.
            Traditional preprocessors only considered a line to be a
!           directive if the `#' appeared in column 1 on the line.
!           Therefore `-Wtraditional' warns about directives that
!           traditional C understands but ignores because the `#' does
!           not appear as the first character on the line.  It also
!           suggests you hide directives like `#pragma' not understood by
            traditional C by indenting them.  Some traditional
!           implementations do not recognize `#elif', so this option
            suggests avoiding it altogether.
  
          * A function-like macro that appears without arguments.
  
          * The unary plus operator.
  
!         * The `U' integer constant suffix, or the `F' or `L'
!           floating-point constant suffixes.  (Traditional C does
!           support the `L' suffix on integer constants.)  Note, these
!           suffixes appear in macros defined in the system headers of
!           most modern systems, e.g. the `_MIN'/`_MAX' macros in
!           `<limits.h>'.  Use of these macros in user code might
!           normally lead to spurious warnings, however GCC's integrated
!           preprocessor has enough context to avoid warning in these
!           cases.
  
          * A function declared external in one block and then used after
            the end of the block.
  
!         * A `switch' statement has an operand of type `long'.
  
!         * A non-`static' function declaration follows a `static' one.
            This construct is not accepted by some traditional C
            compilers.
  
--- 4517,4550 ----
  
          * In traditional C, some preprocessor directives did not exist.
            Traditional preprocessors only considered a line to be a
!           directive if the '#' appeared in column 1 on the line.
!           Therefore '-Wtraditional' warns about directives that
!           traditional C understands but ignores because the '#' does not
!           appear as the first character on the line.  It also suggests
!           you hide directives like '#pragma' not understood by
            traditional C by indenting them.  Some traditional
!           implementations do not recognize '#elif', so this option
            suggests avoiding it altogether.
  
          * A function-like macro that appears without arguments.
  
          * The unary plus operator.
  
!         * The 'U' integer constant suffix, or the 'F' or 'L'
!           floating-point constant suffixes.  (Traditional C does support
!           the 'L' suffix on integer constants.)  Note, these suffixes
!           appear in macros defined in the system headers of most modern
!           systems, e.g. the '_MIN'/'_MAX' macros in '<limits.h>'.  Use
!           of these macros in user code might normally lead to spurious
!           warnings, however GCC's integrated preprocessor has enough
!           context to avoid warning in these cases.
  
          * A function declared external in one block and then used after
            the end of the block.
  
!         * A 'switch' statement has an operand of type 'long'.
  
!         * A non-'static' function declaration follows a 'static' one.
            This construct is not accepted by some traditional C
            compilers.
  
*************** present.
*** 4589,4790 ****
          * Initialization of unions.  If the initializer is zero, the
            warning is omitted.  This is done under the assumption that
            the zero initializer in user code appears conditioned on e.g.
!           `__STDC__' to avoid missing initializer warnings and relies
!           on default initialization to zero in the traditional C case.
  
          * Conversions by prototypes between fixed/floating-point values
            and vice versa.  The absence of these prototypes when
!           compiling with traditional C causes serious problems.  This
!           is a subset of the possible conversion warnings; for the full
!           set use `-Wtraditional-conversion'.
  
          * Use of ISO C style function definitions.  This warning
            intentionally is _not_ issued for prototype declarations or
!           variadic functions because these ISO C features appear in
!           your code when using libiberty's traditional C compatibility
!           macros, `PARAMS' and `VPARAMS'.  This warning is also
!           bypassed for nested functions because that feature is already
!           a GCC extension and thus not relevant to traditional C
            compatibility.
  
! `-Wtraditional-conversion (C and Objective-C only)'
!      Warn if a prototype causes a type conversion that is different
!      from what would happen to the same argument in the absence of a
       prototype.  This includes conversions of fixed point to floating
!      and vice versa, and conversions changing the width or signedness
!      of a fixed-point argument except when the same as the default
       promotion.
  
! `-Wdeclaration-after-statement (C and Objective-C only)'
       Warn when a declaration is found after a statement in a block.
       This construct, known from C++, was introduced with ISO C99 and is
       by default allowed in GCC.  It is not supported by ISO C90.  *Note
       Mixed Declarations::.
  
! `-Wundef'
!      Warn if an undefined identifier is evaluated in an `#if' directive.
  
! `-Wno-endif-labels'
!      Do not warn whenever an `#else' or an `#endif' are followed by
       text.
  
! `-Wshadow'
       Warn whenever a local variable or type declaration shadows another
       variable, parameter, type, class member (in C++), or instance
       variable (in Objective-C) or whenever a built-in function is
!      shadowed. Note that in C++, the compiler warns if a local variable
       shadows an explicit typedef, but not if it shadows a
       struct/class/enum.
  
! `-Wno-shadow-ivar (Objective-C only)'
       Do not warn whenever a local variable shadows an instance variable
       in an Objective-C method.
  
! `-Wlarger-than=LEN'
       Warn whenever an object of larger than LEN bytes is defined.
  
! `-Wframe-larger-than=LEN'
!      Warn if the size of a function frame is larger than LEN bytes.
!      The computation done to determine the stack frame size is
!      approximate and not conservative.  The actual requirements may be
!      somewhat greater than LEN even if you do not get a warning.  In
!      addition, any space allocated via `alloca', variable-length
!      arrays, or related constructs is not included by the compiler when
!      determining whether or not to issue a warning.
  
! `-Wno-free-nonheap-object'
       Do not warn when attempting to free an object that was not
       allocated on the heap.
  
! `-Wstack-usage=LEN'
       Warn if the stack usage of a function might be larger than LEN
       bytes.  The computation done to determine the stack usage is
!      conservative.  Any space allocated via `alloca', variable-length
       arrays, or related constructs is included by the compiler when
       determining whether or not to issue a warning.
  
!      The message is in keeping with the output of `-fstack-usage'.
  
          * If the stack usage is fully static but exceeds the specified
            amount, it's:
  
                   warning: stack usage is 1120 bytes
- 
          * If the stack usage is (partly) dynamic but bounded, it's:
  
                   warning: stack usage might be 1648 bytes
- 
          * If the stack usage is (partly) dynamic and not bounded, it's:
  
                   warning: stack usage might be unbounded
  
! `-Wunsafe-loop-optimizations'
       Warn if the loop cannot be optimized because the compiler cannot
       assume anything on the bounds of the loop indices.  With
!      `-funsafe-loop-optimizations' warn if the compiler makes such
       assumptions.
  
! `-Wno-pedantic-ms-format (MinGW targets only)'
!      When used in combination with `-Wformat' and `-pedantic' without
       GNU extensions, this option disables the warnings about non-ISO
!      `printf' / `scanf' format width specifiers `I32', `I64', and `I'
       used on Windows targets, which depend on the MS runtime.
  
! `-Wplacement-new'
! `-Wplacement-new=N'
       Warn about placement new expressions with undefined behavior, such
!      as constructing an object in a buffer that is smaller than the
!      type of the object.  For example, the placement new expression
!      below is diagnosed because it attempts to construct an array of 64
!      integers in a buffer only 64 bytes large.
            char buf [64];
            new (buf) int[64];
       This warning is enabled by default.
  
!     `-Wplacement-new=1'
!           This is the default warning level of `-Wplacement-new'.  At
            this level the warning is not issued for some strictly
            undefined constructs that GCC allows as extensions for
            compatibility with legacy code.  For example, the following
!           `new' expression is not diagnosed at this level even though
!           it has undefined behavior according to the C++ standard
!           because it writes past the end of the one-element array.
                 struct S { int n, a[1]; };
                 S *s = (S *)malloc (sizeof *s + 31 * sizeof s->a[0]);
                 new (s->a)int [32]();
  
!     `-Wplacement-new=2'
            At this level, in addition to diagnosing all the same
            constructs as at level 1, a diagnostic is also issued for
!           placement new expressions that construct an object in the
!           last member of structure whose type is an array of a single
!           element and whose size is less than the size of the object
!           being constructed.  While the previous example would be
!           diagnosed, the following construct makes use of the flexible
!           member array extension to avoid the warning at level 2.
                 struct S { int n, a[]; };
                 S *s = (S *)malloc (sizeof *s + 32 * sizeof s->a[0]);
                 new (s->a)int [32]();
  
! 
! `-Wpointer-arith'
       Warn about anything that depends on the "size of" a function type
!      or of `void'.  GNU C assigns these types a size of 1, for
!      convenience in calculations with `void *' pointers and pointers to
       functions.  In C++, warn also when an arithmetic operation involves
!      `NULL'.  This warning is also enabled by `-Wpedantic'.
  
! `-Wtype-limits'
       Warn if a comparison is always true or always false due to the
       limited range of the data type, but do not warn for constant
!      expressions.  For example, warn if an unsigned variable is
!      compared against zero with `<' or `>='.  This warning is also
!      enabled by `-Wextra'.
  
! `-Wbad-function-cast (C and Objective-C only)'
       Warn when a function call is cast to a non-matching type.  For
       example, warn if a call to a function returning an integer type is
       cast to a pointer type.
  
! `-Wc90-c99-compat (C and Objective-C only)'
       Warn about features not present in ISO C90, but present in ISO C99.
!      For instance, warn about use of variable length arrays, `long long'
!      type, `bool' type, compound literals, designated initializers, and
!      so on.  This option is independent of the standards mode.
!      Warnings are disabled in the expression that follows
!      `__extension__'.
  
! `-Wc99-c11-compat (C and Objective-C only)'
       Warn about features not present in ISO C99, but present in ISO C11.
       For instance, warn about use of anonymous structures and unions,
!      `_Atomic' type qualifier, `_Thread_local' storage-class specifier,
!      `_Alignas' specifier, `Alignof' operator, `_Generic' keyword, and
!      so on.  This option is independent of the standards mode.
!      Warnings are disabled in the expression that follows
!      `__extension__'.
  
! `-Wc++-compat (C and Objective-C only)'
       Warn about ISO C constructs that are outside of the common subset
       of ISO C and ISO C++, e.g. request for implicit conversion from
!      `void *' to a pointer to non-`void' type.
  
! `-Wc++11-compat (C++ and Objective-C++ only)'
       Warn about C++ constructs whose meaning differs between ISO C++
       1998 and ISO C++ 2011, e.g., identifiers in ISO C++ 1998 that are
!      keywords in ISO C++ 2011.  This warning turns on `-Wnarrowing' and
!      is enabled by `-Wall'.
  
! `-Wc++14-compat (C++ and Objective-C++ only)'
       Warn about C++ constructs whose meaning differs between ISO C++
!      2011 and ISO C++ 2014.  This warning is enabled by `-Wall'.
  
! `-Wcast-qual'
       Warn whenever a pointer is cast so as to remove a type qualifier
!      from the target type.  For example, warn if a `const char *' is
!      cast to an ordinary `char *'.
  
       Also warn when making a cast that introduces a type qualifier in an
!      unsafe way.  For example, casting `char **' to `const char **' is
       unsafe, as in this example:
  
              /* p is char ** value.  */
--- 4564,4760 ----
          * Initialization of unions.  If the initializer is zero, the
            warning is omitted.  This is done under the assumption that
            the zero initializer in user code appears conditioned on e.g.
!           '__STDC__' to avoid missing initializer warnings and relies on
!           default initialization to zero in the traditional C case.
  
          * Conversions by prototypes between fixed/floating-point values
            and vice versa.  The absence of these prototypes when
!           compiling with traditional C causes serious problems.  This is
!           a subset of the possible conversion warnings; for the full set
!           use '-Wtraditional-conversion'.
  
          * Use of ISO C style function definitions.  This warning
            intentionally is _not_ issued for prototype declarations or
!           variadic functions because these ISO C features appear in your
!           code when using libiberty's traditional C compatibility
!           macros, 'PARAMS' and 'VPARAMS'.  This warning is also bypassed
!           for nested functions because that feature is already a GCC
!           extension and thus not relevant to traditional C
            compatibility.
  
! '-Wtraditional-conversion (C and Objective-C only)'
!      Warn if a prototype causes a type conversion that is different from
!      what would happen to the same argument in the absence of a
       prototype.  This includes conversions of fixed point to floating
!      and vice versa, and conversions changing the width or signedness of
!      a fixed-point argument except when the same as the default
       promotion.
  
! '-Wdeclaration-after-statement (C and Objective-C only)'
       Warn when a declaration is found after a statement in a block.
       This construct, known from C++, was introduced with ISO C99 and is
       by default allowed in GCC.  It is not supported by ISO C90.  *Note
       Mixed Declarations::.
  
! '-Wundef'
!      Warn if an undefined identifier is evaluated in an '#if' directive.
  
! '-Wno-endif-labels'
!      Do not warn whenever an '#else' or an '#endif' are followed by
       text.
  
! '-Wshadow'
       Warn whenever a local variable or type declaration shadows another
       variable, parameter, type, class member (in C++), or instance
       variable (in Objective-C) or whenever a built-in function is
!      shadowed.  Note that in C++, the compiler warns if a local variable
       shadows an explicit typedef, but not if it shadows a
       struct/class/enum.
  
! '-Wno-shadow-ivar (Objective-C only)'
       Do not warn whenever a local variable shadows an instance variable
       in an Objective-C method.
  
! '-Wlarger-than=LEN'
       Warn whenever an object of larger than LEN bytes is defined.
  
! '-Wframe-larger-than=LEN'
!      Warn if the size of a function frame is larger than LEN bytes.  The
!      computation done to determine the stack frame size is approximate
!      and not conservative.  The actual requirements may be somewhat
!      greater than LEN even if you do not get a warning.  In addition,
!      any space allocated via 'alloca', variable-length arrays, or
!      related constructs is not included by the compiler when determining
!      whether or not to issue a warning.
  
! '-Wno-free-nonheap-object'
       Do not warn when attempting to free an object that was not
       allocated on the heap.
  
! '-Wstack-usage=LEN'
       Warn if the stack usage of a function might be larger than LEN
       bytes.  The computation done to determine the stack usage is
!      conservative.  Any space allocated via 'alloca', variable-length
       arrays, or related constructs is included by the compiler when
       determining whether or not to issue a warning.
  
!      The message is in keeping with the output of '-fstack-usage'.
  
          * If the stack usage is fully static but exceeds the specified
            amount, it's:
  
                   warning: stack usage is 1120 bytes
          * If the stack usage is (partly) dynamic but bounded, it's:
  
                   warning: stack usage might be 1648 bytes
          * If the stack usage is (partly) dynamic and not bounded, it's:
  
                   warning: stack usage might be unbounded
  
! '-Wunsafe-loop-optimizations'
       Warn if the loop cannot be optimized because the compiler cannot
       assume anything on the bounds of the loop indices.  With
!      '-funsafe-loop-optimizations' warn if the compiler makes such
       assumptions.
  
! '-Wno-pedantic-ms-format (MinGW targets only)'
!      When used in combination with '-Wformat' and '-pedantic' without
       GNU extensions, this option disables the warnings about non-ISO
!      'printf' / 'scanf' format width specifiers 'I32', 'I64', and 'I'
       used on Windows targets, which depend on the MS runtime.
  
! '-Wplacement-new'
! '-Wplacement-new=N'
       Warn about placement new expressions with undefined behavior, such
!      as constructing an object in a buffer that is smaller than the type
!      of the object.  For example, the placement new expression below is
!      diagnosed because it attempts to construct an array of 64 integers
!      in a buffer only 64 bytes large.
            char buf [64];
            new (buf) int[64];
       This warning is enabled by default.
  
!      '-Wplacement-new=1'
!           This is the default warning level of '-Wplacement-new'.  At
            this level the warning is not issued for some strictly
            undefined constructs that GCC allows as extensions for
            compatibility with legacy code.  For example, the following
!           'new' expression is not diagnosed at this level even though it
!           has undefined behavior according to the C++ standard because
!           it writes past the end of the one-element array.
                 struct S { int n, a[1]; };
                 S *s = (S *)malloc (sizeof *s + 31 * sizeof s->a[0]);
                 new (s->a)int [32]();
  
!      '-Wplacement-new=2'
            At this level, in addition to diagnosing all the same
            constructs as at level 1, a diagnostic is also issued for
!           placement new expressions that construct an object in the last
!           member of structure whose type is an array of a single element
!           and whose size is less than the size of the object being
!           constructed.  While the previous example would be diagnosed,
!           the following construct makes use of the flexible member array
!           extension to avoid the warning at level 2.
                 struct S { int n, a[]; };
                 S *s = (S *)malloc (sizeof *s + 32 * sizeof s->a[0]);
                 new (s->a)int [32]();
  
! '-Wpointer-arith'
       Warn about anything that depends on the "size of" a function type
!      or of 'void'.  GNU C assigns these types a size of 1, for
!      convenience in calculations with 'void *' pointers and pointers to
       functions.  In C++, warn also when an arithmetic operation involves
!      'NULL'.  This warning is also enabled by '-Wpedantic'.
  
! '-Wtype-limits'
       Warn if a comparison is always true or always false due to the
       limited range of the data type, but do not warn for constant
!      expressions.  For example, warn if an unsigned variable is compared
!      against zero with '<' or '>='.  This warning is also enabled by
!      '-Wextra'.
  
! '-Wbad-function-cast (C and Objective-C only)'
       Warn when a function call is cast to a non-matching type.  For
       example, warn if a call to a function returning an integer type is
       cast to a pointer type.
  
! '-Wc90-c99-compat (C and Objective-C only)'
       Warn about features not present in ISO C90, but present in ISO C99.
!      For instance, warn about use of variable length arrays, 'long long'
!      type, 'bool' type, compound literals, designated initializers, and
!      so on.  This option is independent of the standards mode.  Warnings
!      are disabled in the expression that follows '__extension__'.
  
! '-Wc99-c11-compat (C and Objective-C only)'
       Warn about features not present in ISO C99, but present in ISO C11.
       For instance, warn about use of anonymous structures and unions,
!      '_Atomic' type qualifier, '_Thread_local' storage-class specifier,
!      '_Alignas' specifier, 'Alignof' operator, '_Generic' keyword, and
!      so on.  This option is independent of the standards mode.  Warnings
!      are disabled in the expression that follows '__extension__'.
  
! '-Wc++-compat (C and Objective-C only)'
       Warn about ISO C constructs that are outside of the common subset
       of ISO C and ISO C++, e.g. request for implicit conversion from
!      'void *' to a pointer to non-'void' type.
  
! '-Wc++11-compat (C++ and Objective-C++ only)'
       Warn about C++ constructs whose meaning differs between ISO C++
       1998 and ISO C++ 2011, e.g., identifiers in ISO C++ 1998 that are
!      keywords in ISO C++ 2011.  This warning turns on '-Wnarrowing' and
!      is enabled by '-Wall'.
  
! '-Wc++14-compat (C++ and Objective-C++ only)'
       Warn about C++ constructs whose meaning differs between ISO C++
!      2011 and ISO C++ 2014.  This warning is enabled by '-Wall'.
  
! '-Wcast-qual'
       Warn whenever a pointer is cast so as to remove a type qualifier
!      from the target type.  For example, warn if a 'const char *' is
!      cast to an ordinary 'char *'.
  
       Also warn when making a cast that introduces a type qualifier in an
!      unsafe way.  For example, casting 'char **' to 'const char **' is
       unsafe, as in this example:
  
              /* p is char ** value.  */
*************** present.
*** 4794,4921 ****
              /* Now char** pointer points to read-only memory.  */
              **p = 'b';
  
! `-Wcast-align'
!      Warn whenever a pointer is cast such that the required alignment
!      of the target is increased.  For example, warn if a `char *' is
!      cast to an `int *' on machines where integers can only be accessed
!      at two- or four-byte boundaries.
  
! `-Wwrite-strings'
!      When compiling C, give string constants the type `const
!      char[LENGTH]' so that copying the address of one into a
!      non-`const' `char *' pointer produces a warning.  These warnings
!      help you find at compile time code that can try to write into a
!      string constant, but only if you have been very careful about
!      using `const' in declarations and prototypes.  Otherwise, it is
!      just a nuisance. This is why we did not make `-Wall' request these
!      warnings.
  
       When compiling C++, warn about the deprecated conversion from
!      string literals to `char *'.  This warning is enabled by default
       for C++ programs.
  
! `-Wclobbered'
!      Warn for variables that might be changed by `longjmp' or `vfork'.
!      This warning is also enabled by `-Wextra'.
  
! `-Wconditionally-supported (C++ and Objective-C++ only)'
       Warn for conditionally-supported (C++11 [intro.defs]) constructs.
  
! `-Wconversion'
!      Warn for implicit conversions that may alter a value. This includes
!      conversions between real and integer, like `abs (x)' when `x' is
!      `double'; conversions between signed and unsigned, like `unsigned
!      ui = -1'; and conversions to smaller types, like `sqrtf (M_PI)'.
!      Do not warn for explicit casts like `abs ((int) x)' and `ui =
!      (unsigned) -1', or if the value is not changed by the conversion
!      like in `abs (2.0)'.  Warnings about conversions between signed
!      and unsigned integers can be disabled by using
!      `-Wno-sign-conversion'.
  
       For C++, also warn for confusing overload resolution for
       user-defined conversions; and conversions that never use a type
!      conversion operator: conversions to `void', the same type, a base
!      class or a reference to them. Warnings about conversions between
       signed and unsigned integers are disabled by default in C++ unless
!      `-Wsign-conversion' is explicitly enabled.
  
! `-Wno-conversion-null (C++ and Objective-C++ only)'
!      Do not warn for conversions between `NULL' and non-pointer types.
!      `-Wconversion-null' is enabled by default.
  
! `-Wzero-as-null-pointer-constant (C++ and Objective-C++ only)'
!      Warn when a literal `0' is used as null pointer constant.  This can
!      be useful to facilitate the conversion to `nullptr' in C++11.
  
! `-Wsubobject-linkage (C++ and Objective-C++ only)'
       Warn if a class type has a base or a field whose type uses the
       anonymous namespace or depends on a type with no linkage.  If a
!      type A depends on a type B with no or internal linkage, defining
!      it in multiple translation units would be an ODR violation because
!      the meaning of B is different in each translation unit.  If A only
       appears in a single translation unit, the best way to silence the
       warning is to give it internal linkage by putting it in an
       anonymous namespace as well.  The compiler doesn't give this
       warning for types defined in the main .C file, as those are
!      unlikely to have multiple definitions.  `-Wsubobject-linkage' is
       enabled by default.
  
! `-Wdate-time'
!      Warn when macros `__TIME__', `__DATE__' or `__TIMESTAMP__' are
       encountered as they might prevent bit-wise-identical reproducible
       compilations.
  
! `-Wdelete-incomplete (C++ and Objective-C++ only)'
       Warn when deleting a pointer to incomplete type, which may cause
       undefined behavior at runtime.  This warning is enabled by default.
  
! `-Wuseless-cast (C++ and Objective-C++ only)'
       Warn when an expression is casted to its own type.
  
! `-Wempty-body'
!      Warn if an empty body occurs in an `if', `else' or `do while'
!      statement.  This warning is also enabled by `-Wextra'.
  
! `-Wenum-compare'
       Warn about a comparison between values of different enumerated
       types.  In C++ enumeral mismatches in conditional expressions are
       also diagnosed and the warning is enabled by default.  In C this
!      warning is enabled by `-Wall'.
  
! `-Wjump-misses-init (C, Objective-C only)'
!      Warn if a `goto' statement or a `switch' statement jumps forward
       across the initialization of a variable, or jumps backward to a
       label after the variable has been initialized.  This only warns
       about variables that are initialized when they are declared.  This
       warning is only supported for C and Objective-C; in C++ this sort
       of branch is an error in any case.
  
!      `-Wjump-misses-init' is included in `-Wc++-compat'.  It can be
!      disabled with the `-Wno-jump-misses-init' option.
  
! `-Wsign-compare'
       Warn when a comparison between signed and unsigned values could
       produce an incorrect result when the signed value is converted to
!      unsigned.  In C++, this warning is also enabled by `-Wall'.  In C,
!      it is also enabled by `-Wextra'.
  
! `-Wsign-conversion'
       Warn for implicit conversions that may change the sign of an
       integer value, like assigning a signed integer expression to an
!      unsigned integer variable. An explicit cast silences the warning.
!      In C, this option is enabled also by `-Wconversion'.
  
! `-Wfloat-conversion'
       Warn for implicit conversions that reduce the precision of a real
       value.  This includes conversions from real to integer, and from
       higher precision real to lower precision real values.  This option
!      is also enabled by `-Wconversion'.
  
! `-Wno-scalar-storage-order'
       Do not warn on suspicious constructs involving reverse scalar
       storage order.
  
! `-Wsized-deallocation (C++ and Objective-C++ only)'
       Warn about a definition of an unsized deallocation function
            void operator delete (void *) noexcept;
            void operator delete[] (void *) noexcept;
--- 4764,4890 ----
              /* Now char** pointer points to read-only memory.  */
              **p = 'b';
  
! '-Wcast-align'
!      Warn whenever a pointer is cast such that the required alignment of
!      the target is increased.  For example, warn if a 'char *' is cast
!      to an 'int *' on machines where integers can only be accessed at
!      two- or four-byte boundaries.
  
! '-Wwrite-strings'
!      When compiling C, give string constants the type 'const
!      char[LENGTH]' so that copying the address of one into a non-'const'
!      'char *' pointer produces a warning.  These warnings help you find
!      at compile time code that can try to write into a string constant,
!      but only if you have been very careful about using 'const' in
!      declarations and prototypes.  Otherwise, it is just a nuisance.
!      This is why we did not make '-Wall' request these warnings.
  
       When compiling C++, warn about the deprecated conversion from
!      string literals to 'char *'.  This warning is enabled by default
       for C++ programs.
  
! '-Wclobbered'
!      Warn for variables that might be changed by 'longjmp' or 'vfork'.
!      This warning is also enabled by '-Wextra'.
  
! '-Wconditionally-supported (C++ and Objective-C++ only)'
       Warn for conditionally-supported (C++11 [intro.defs]) constructs.
  
! '-Wconversion'
!      Warn for implicit conversions that may alter a value.  This
!      includes conversions between real and integer, like 'abs (x)' when
!      'x' is 'double'; conversions between signed and unsigned, like
!      'unsigned ui = -1'; and conversions to smaller types, like 'sqrtf
!      (M_PI)'.  Do not warn for explicit casts like 'abs ((int) x)' and
!      'ui = (unsigned) -1', or if the value is not changed by the
!      conversion like in 'abs (2.0)'.  Warnings about conversions between
!      signed and unsigned integers can be disabled by using
!      '-Wno-sign-conversion'.
  
       For C++, also warn for confusing overload resolution for
       user-defined conversions; and conversions that never use a type
!      conversion operator: conversions to 'void', the same type, a base
!      class or a reference to them.  Warnings about conversions between
       signed and unsigned integers are disabled by default in C++ unless
!      '-Wsign-conversion' is explicitly enabled.
  
! '-Wno-conversion-null (C++ and Objective-C++ only)'
!      Do not warn for conversions between 'NULL' and non-pointer types.
!      '-Wconversion-null' is enabled by default.
  
! '-Wzero-as-null-pointer-constant (C++ and Objective-C++ only)'
!      Warn when a literal '0' is used as null pointer constant.  This can
!      be useful to facilitate the conversion to 'nullptr' in C++11.
  
! '-Wsubobject-linkage (C++ and Objective-C++ only)'
       Warn if a class type has a base or a field whose type uses the
       anonymous namespace or depends on a type with no linkage.  If a
!      type A depends on a type B with no or internal linkage, defining it
!      in multiple translation units would be an ODR violation because the
!      meaning of B is different in each translation unit.  If A only
       appears in a single translation unit, the best way to silence the
       warning is to give it internal linkage by putting it in an
       anonymous namespace as well.  The compiler doesn't give this
       warning for types defined in the main .C file, as those are
!      unlikely to have multiple definitions.  '-Wsubobject-linkage' is
       enabled by default.
  
! '-Wdate-time'
!      Warn when macros '__TIME__', '__DATE__' or '__TIMESTAMP__' are
       encountered as they might prevent bit-wise-identical reproducible
       compilations.
  
! '-Wdelete-incomplete (C++ and Objective-C++ only)'
       Warn when deleting a pointer to incomplete type, which may cause
       undefined behavior at runtime.  This warning is enabled by default.
  
! '-Wuseless-cast (C++ and Objective-C++ only)'
       Warn when an expression is casted to its own type.
  
! '-Wempty-body'
!      Warn if an empty body occurs in an 'if', 'else' or 'do while'
!      statement.  This warning is also enabled by '-Wextra'.
  
! '-Wenum-compare'
       Warn about a comparison between values of different enumerated
       types.  In C++ enumeral mismatches in conditional expressions are
       also diagnosed and the warning is enabled by default.  In C this
!      warning is enabled by '-Wall'.
  
! '-Wjump-misses-init (C, Objective-C only)'
!      Warn if a 'goto' statement or a 'switch' statement jumps forward
       across the initialization of a variable, or jumps backward to a
       label after the variable has been initialized.  This only warns
       about variables that are initialized when they are declared.  This
       warning is only supported for C and Objective-C; in C++ this sort
       of branch is an error in any case.
  
!      '-Wjump-misses-init' is included in '-Wc++-compat'.  It can be
!      disabled with the '-Wno-jump-misses-init' option.
  
! '-Wsign-compare'
       Warn when a comparison between signed and unsigned values could
       produce an incorrect result when the signed value is converted to
!      unsigned.  In C++, this warning is also enabled by '-Wall'.  In C,
!      it is also enabled by '-Wextra'.
  
! '-Wsign-conversion'
       Warn for implicit conversions that may change the sign of an
       integer value, like assigning a signed integer expression to an
!      unsigned integer variable.  An explicit cast silences the warning.
!      In C, this option is enabled also by '-Wconversion'.
  
! '-Wfloat-conversion'
       Warn for implicit conversions that reduce the precision of a real
       value.  This includes conversions from real to integer, and from
       higher precision real to lower precision real values.  This option
!      is also enabled by '-Wconversion'.
  
! '-Wno-scalar-storage-order'
       Do not warn on suspicious constructs involving reverse scalar
       storage order.
  
! '-Wsized-deallocation (C++ and Objective-C++ only)'
       Warn about a definition of an unsized deallocation function
            void operator delete (void *) noexcept;
            void operator delete[] (void *) noexcept;
*************** present.
*** 4923,4977 ****
       function
            void operator delete (void *, std::size_t) noexcept;
            void operator delete[] (void *, std::size_t) noexcept;
!      or vice versa.  Enabled by `-Wextra' along with
!      `-fsized-deallocation'.
  
! `-Wsizeof-pointer-memaccess'
       Warn for suspicious length parameters to certain string and memory
!      built-in functions if the argument uses `sizeof'.  This warning
!      warns e.g.  about `memset (ptr, 0, sizeof (ptr));' if `ptr' is not
       an array, but a pointer, and suggests a possible fix, or about
!      `memcpy (&foo, ptr, sizeof (&foo));'.  This warning is enabled by
!      `-Wall'.
  
! `-Wsizeof-array-argument'
!      Warn when the `sizeof' operator is applied to a parameter that is
       declared as an array in a function definition.  This warning is
       enabled by default for C and C++ programs.
  
! `-Wmemset-transposed-args'
!      Warn for suspicious calls to the `memset' built-in function, if the
       second argument is not zero and the third argument is zero.  This
!      warns e.g. about `memset (buf, sizeof buf, 0)' where most probably
!      `memset (buf, 0, sizeof buf)' was meant instead.  The diagnostics
       is only emitted if the third argument is literal zero.  If it is
       some expression that is folded to zero, a cast of zero to some
       type, etc., it is far less likely that the user has mistakenly
!      exchanged the arguments and no warning is emitted.  This warning
!      is enabled by `-Wall'.
  
! `-Waddress'
!      Warn about suspicious uses of memory addresses. These include using
!      the address of a function in a conditional expression, such as
!      `void func(void); if (func)', and comparisons against the memory
!      address of a string literal, such as `if (x == "abc")'.  Such uses
       typically indicate a programmer error: the address of a function
       always evaluates to true, so their use in a conditional usually
       indicate that the programmer forgot the parentheses in a function
       call; and comparisons against string literals result in unspecified
       behavior and are not portable in C, so they usually indicate that
!      the programmer intended to use `strcmp'.  This warning is enabled
!      by `-Wall'.
  
! `-Wlogical-op'
       Warn about suspicious uses of logical operators in expressions.
       This includes using logical operators in contexts where a bit-wise
!      operator is likely to be expected.  Also warns when the operands
!      of a logical operator are the same:
            extern int a;
            if (a < 0 && a < 0) { ... }
  
! `-Wlogical-not-parentheses'
       Warn about logical not used on the left hand side operand of a
       comparison.  This option does not warn if the RHS operand is of a
       boolean type.  Its purpose is to detect suspicious code like the
--- 4892,4946 ----
       function
            void operator delete (void *, std::size_t) noexcept;
            void operator delete[] (void *, std::size_t) noexcept;
!      or vice versa.  Enabled by '-Wextra' along with
!      '-fsized-deallocation'.
  
! '-Wsizeof-pointer-memaccess'
       Warn for suspicious length parameters to certain string and memory
!      built-in functions if the argument uses 'sizeof'.  This warning
!      warns e.g. about 'memset (ptr, 0, sizeof (ptr));' if 'ptr' is not
       an array, but a pointer, and suggests a possible fix, or about
!      'memcpy (&foo, ptr, sizeof (&foo));'.  This warning is enabled by
!      '-Wall'.
  
! '-Wsizeof-array-argument'
!      Warn when the 'sizeof' operator is applied to a parameter that is
       declared as an array in a function definition.  This warning is
       enabled by default for C and C++ programs.
  
! '-Wmemset-transposed-args'
!      Warn for suspicious calls to the 'memset' built-in function, if the
       second argument is not zero and the third argument is zero.  This
!      warns e.g. about 'memset (buf, sizeof buf, 0)' where most probably
!      'memset (buf, 0, sizeof buf)' was meant instead.  The diagnostics
       is only emitted if the third argument is literal zero.  If it is
       some expression that is folded to zero, a cast of zero to some
       type, etc., it is far less likely that the user has mistakenly
!      exchanged the arguments and no warning is emitted.  This warning is
!      enabled by '-Wall'.
  
! '-Waddress'
!      Warn about suspicious uses of memory addresses.  These include
!      using the address of a function in a conditional expression, such
!      as 'void func(void); if (func)', and comparisons against the memory
!      address of a string literal, such as 'if (x == "abc")'.  Such uses
       typically indicate a programmer error: the address of a function
       always evaluates to true, so their use in a conditional usually
       indicate that the programmer forgot the parentheses in a function
       call; and comparisons against string literals result in unspecified
       behavior and are not portable in C, so they usually indicate that
!      the programmer intended to use 'strcmp'.  This warning is enabled
!      by '-Wall'.
  
! '-Wlogical-op'
       Warn about suspicious uses of logical operators in expressions.
       This includes using logical operators in contexts where a bit-wise
!      operator is likely to be expected.  Also warns when the operands of
!      a logical operator are the same:
            extern int a;
            if (a < 0 && a < 0) { ... }
  
! '-Wlogical-not-parentheses'
       Warn about logical not used on the left hand side operand of a
       comparison.  This option does not warn if the RHS operand is of a
       boolean type.  Its purpose is to detect suspicious code like the
*************** present.
*** 4984,5037 ****
       parentheses:
            if ((!a) > 1) { ... }
  
!      This warning is enabled by `-Wall'.
  
! `-Waggregate-return'
       Warn if any functions that return structures or unions are defined
       or called.  (In languages where you can return an array, this also
       elicits a warning.)
  
! `-Wno-aggressive-loop-optimizations'
       Warn if in a loop with constant number of iterations the compiler
       detects undefined behavior in some statement during one or more of
       the iterations.
  
! `-Wno-attributes'
!      Do not warn if an unexpected `__attribute__' is used, such as
       unrecognized attributes, function attributes applied to variables,
       etc.  This does not stop errors for incorrect use of supported
       attributes.
  
! `-Wno-builtin-macro-redefined'
       Do not warn if certain built-in macros are redefined.  This
!      suppresses warnings for redefinition of `__TIMESTAMP__',
!      `__TIME__', `__DATE__', `__FILE__', and `__BASE_FILE__'.
  
! `-Wstrict-prototypes (C and Objective-C only)'
       Warn if a function is declared or defined without specifying the
       argument types.  (An old-style function definition is permitted
       without a warning if preceded by a declaration that specifies the
       argument types.)
  
! `-Wold-style-declaration (C and Objective-C only)'
       Warn for obsolescent usages, according to the C Standard, in a
!      declaration. For example, warn if storage-class specifiers like
!      `static' are not the first things in a declaration.  This warning
!      is also enabled by `-Wextra'.
  
! `-Wold-style-definition (C and Objective-C only)'
       Warn if an old-style function definition is used.  A warning is
       given even if there is a previous prototype.
  
! `-Wmissing-parameter-type (C and Objective-C only)'
       A function parameter is declared without a type specifier in
       K&R-style functions:
  
            void foo(bar) { }
  
!      This warning is also enabled by `-Wextra'.
  
! `-Wmissing-prototypes (C and Objective-C only)'
       Warn if a global function is defined without a previous prototype
       declaration.  This warning is issued even if the definition itself
       provides a prototype.  Use this option to detect global functions
--- 4953,5006 ----
       parentheses:
            if ((!a) > 1) { ... }
  
!      This warning is enabled by '-Wall'.
  
! '-Waggregate-return'
       Warn if any functions that return structures or unions are defined
       or called.  (In languages where you can return an array, this also
       elicits a warning.)
  
! '-Wno-aggressive-loop-optimizations'
       Warn if in a loop with constant number of iterations the compiler
       detects undefined behavior in some statement during one or more of
       the iterations.
  
! '-Wno-attributes'
!      Do not warn if an unexpected '__attribute__' is used, such as
       unrecognized attributes, function attributes applied to variables,
       etc.  This does not stop errors for incorrect use of supported
       attributes.
  
! '-Wno-builtin-macro-redefined'
       Do not warn if certain built-in macros are redefined.  This
!      suppresses warnings for redefinition of '__TIMESTAMP__',
!      '__TIME__', '__DATE__', '__FILE__', and '__BASE_FILE__'.
  
! '-Wstrict-prototypes (C and Objective-C only)'
       Warn if a function is declared or defined without specifying the
       argument types.  (An old-style function definition is permitted
       without a warning if preceded by a declaration that specifies the
       argument types.)
  
! '-Wold-style-declaration (C and Objective-C only)'
       Warn for obsolescent usages, according to the C Standard, in a
!      declaration.  For example, warn if storage-class specifiers like
!      'static' are not the first things in a declaration.  This warning
!      is also enabled by '-Wextra'.
  
! '-Wold-style-definition (C and Objective-C only)'
       Warn if an old-style function definition is used.  A warning is
       given even if there is a previous prototype.
  
! '-Wmissing-parameter-type (C and Objective-C only)'
       A function parameter is declared without a type specifier in
       K&R-style functions:
  
            void foo(bar) { }
  
!      This warning is also enabled by '-Wextra'.
  
! '-Wmissing-prototypes (C and Objective-C only)'
       Warn if a global function is defined without a previous prototype
       declaration.  This warning is issued even if the definition itself
       provides a prototype.  Use this option to detect global functions
*************** present.
*** 5039,5060 ****
       This option is not valid for C++ because all function declarations
       provide prototypes and a non-matching declaration declares an
       overload rather than conflict with an earlier declaration.  Use
!      `-Wmissing-declarations' to detect missing declarations in C++.
  
! `-Wmissing-declarations'
       Warn if a global function is defined without a previous
       declaration.  Do so even if the definition itself provides a
!      prototype.  Use this option to detect global functions that are
!      not declared in header files.  In C, no warnings are issued for
       functions with previous non-prototype declarations; use
!      `-Wmissing-prototypes' to detect missing prototypes.  In C++, no
       warnings are issued for function templates, or for inline
       functions, or for functions in anonymous namespaces.
  
! `-Wmissing-field-initializers'
       Warn if a structure's initializer has some fields missing.  For
!      example, the following code causes such a warning, because `x.h'
!      is implicitly zero:
  
            struct s { int f, g, h; };
            struct s x = { 3, 4 };
--- 5008,5029 ----
       This option is not valid for C++ because all function declarations
       provide prototypes and a non-matching declaration declares an
       overload rather than conflict with an earlier declaration.  Use
!      '-Wmissing-declarations' to detect missing declarations in C++.
  
! '-Wmissing-declarations'
       Warn if a global function is defined without a previous
       declaration.  Do so even if the definition itself provides a
!      prototype.  Use this option to detect global functions that are not
!      declared in header files.  In C, no warnings are issued for
       functions with previous non-prototype declarations; use
!      '-Wmissing-prototypes' to detect missing prototypes.  In C++, no
       warnings are issued for function templates, or for inline
       functions, or for functions in anonymous namespaces.
  
! '-Wmissing-field-initializers'
       Warn if a structure's initializer has some fields missing.  For
!      example, the following code causes such a warning, because 'x.h' is
!      implicitly zero:
  
            struct s { int f, g, h; };
            struct s x = { 3, 4 };
*************** present.
*** 5071,5173 ****
            struct s { int f, g, h; };
            s x = { };
  
!      This warning is included in `-Wextra'.  To get other `-Wextra'
!      warnings without this one, use `-Wextra
       -Wno-missing-field-initializers'.
  
! `-Wno-multichar'
!      Do not warn if a multicharacter constant (`'FOOF'') is used.
       Usually they indicate a typo in the user's code, as they have
       implementation-defined values, and should not be used in portable
       code.
  
! `-Wnormalized[=<none|id|nfc|nfkc>]'
       In ISO C and ISO C++, two identifiers are different if they are
       different sequences of characters.  However, sometimes when
       characters outside the basic ASCII character set are used, you can
       have two different character sequences that look the same.  To
       avoid confusion, the ISO 10646 standard sets out some
       "normalization rules" which when applied ensure that two sequences
!      that look the same are turned into the same sequence.  GCC can
!      warn you if you are using identifiers that have not been
!      normalized; this option controls that warning.
  
       There are four levels of warning supported by GCC.  The default is
!      `-Wnormalized=nfc', which warns about any identifier that is not
!      in the ISO 10646 "C" normalized form, "NFC".  NFC is the
!      recommended form for most uses.  It is equivalent to
!      `-Wnormalized'.
  
       Unfortunately, there are some characters allowed in identifiers by
       ISO C and ISO C++ that, when turned into NFC, are not allowed in
       identifiers.  That is, there's no way to use these symbols in
       portable ISO C or C++ and have all your identifiers in NFC.
!      `-Wnormalized=id' suppresses the warning for these characters.  It
       is hoped that future versions of the standards involved will
       correct this, which is why this option is not the default.
  
       You can switch the warning off for all characters by writing
!      `-Wnormalized=none' or `-Wno-normalized'.  You should only do this
       if you are using some other normalization scheme (like "D"),
       because otherwise you can easily create bugs that are literally
       impossible to see.
  
       Some characters in ISO 10646 have distinct meanings but look
       identical in some fonts or display methodologies, especially once
!      formatting has been applied.  For instance `\u207F', "SUPERSCRIPT
!      LATIN SMALL LETTER N", displays just like a regular `n' that has
       been placed in a superscript.  ISO 10646 defines the "NFKC"
       normalization scheme to convert all these into a standard form as
       well, and GCC warns if your code is not in NFKC if you use
!      `-Wnormalized=nfkc'.  This warning is comparable to warning about
       every identifier that contains the letter O because it might be
       confused with the digit 0, and so is not the default, but may be
       useful as a local coding convention if the programming environment
       cannot be fixed to display these characters distinctly.
  
! `-Wno-deprecated'
       Do not warn about usage of deprecated features.  *Note Deprecated
       Features::.
  
! `-Wno-deprecated-declarations'
       Do not warn about uses of functions (*note Function Attributes::),
       variables (*note Variable Attributes::), and types (*note Type
!      Attributes::) marked as deprecated by using the `deprecated'
       attribute.
  
! `-Wno-overflow'
       Do not warn about compile-time overflow in constant expressions.
  
! `-Wno-odr'
       Warn about One Definition Rule violations during link-time
!      optimization.  Requires `-flto-odr-type-merging' to be enabled.
       Enabled by default.
  
! `-Wopenmp-simd'
       Warn if the vectorizer cost model overrides the OpenMP or the Cilk
!      Plus simd directive set by user.  The `-fsimd-cost-model=unlimited'
       option can be used to relax the cost model.
  
! `-Woverride-init (C and Objective-C only)'
       Warn if an initialized field without side effects is overridden
       when using designated initializers (*note Designated Initializers:
       Designated Inits.).
  
!      This warning is included in `-Wextra'.  To get other `-Wextra'
!      warnings without this one, use `-Wextra -Wno-override-init'.
  
! `-Woverride-init-side-effects (C and Objective-C only)'
       Warn if an initialized field with side effects is overridden when
       using designated initializers (*note Designated Initializers:
       Designated Inits.).  This warning is enabled by default.
  
! `-Wpacked'
       Warn if a structure is given the packed attribute, but the packed
       attribute has no effect on the layout or size of the structure.
       Such structures may be mis-aligned for little benefit.  For
!      instance, in this code, the variable `f.x' in `struct bar' is
!      misaligned even though `struct bar' does not itself have the
!      packed attribute:
  
            struct foo {
              int x;
--- 5040,5141 ----
            struct s { int f, g, h; };
            s x = { };
  
!      This warning is included in '-Wextra'.  To get other '-Wextra'
!      warnings without this one, use '-Wextra
       -Wno-missing-field-initializers'.
  
! '-Wno-multichar'
!      Do not warn if a multicharacter constant (''FOOF'') is used.
       Usually they indicate a typo in the user's code, as they have
       implementation-defined values, and should not be used in portable
       code.
  
! '-Wnormalized[=<none|id|nfc|nfkc>]'
       In ISO C and ISO C++, two identifiers are different if they are
       different sequences of characters.  However, sometimes when
       characters outside the basic ASCII character set are used, you can
       have two different character sequences that look the same.  To
       avoid confusion, the ISO 10646 standard sets out some
       "normalization rules" which when applied ensure that two sequences
!      that look the same are turned into the same sequence.  GCC can warn
!      you if you are using identifiers that have not been normalized;
!      this option controls that warning.
  
       There are four levels of warning supported by GCC.  The default is
!      '-Wnormalized=nfc', which warns about any identifier that is not in
!      the ISO 10646 "C" normalized form, "NFC". NFC is the recommended
!      form for most uses.  It is equivalent to '-Wnormalized'.
  
       Unfortunately, there are some characters allowed in identifiers by
       ISO C and ISO C++ that, when turned into NFC, are not allowed in
       identifiers.  That is, there's no way to use these symbols in
       portable ISO C or C++ and have all your identifiers in NFC.
!      '-Wnormalized=id' suppresses the warning for these characters.  It
       is hoped that future versions of the standards involved will
       correct this, which is why this option is not the default.
  
       You can switch the warning off for all characters by writing
!      '-Wnormalized=none' or '-Wno-normalized'.  You should only do this
       if you are using some other normalization scheme (like "D"),
       because otherwise you can easily create bugs that are literally
       impossible to see.
  
       Some characters in ISO 10646 have distinct meanings but look
       identical in some fonts or display methodologies, especially once
!      formatting has been applied.  For instance '\u207F', "SUPERSCRIPT
!      LATIN SMALL LETTER N", displays just like a regular 'n' that has
       been placed in a superscript.  ISO 10646 defines the "NFKC"
       normalization scheme to convert all these into a standard form as
       well, and GCC warns if your code is not in NFKC if you use
!      '-Wnormalized=nfkc'.  This warning is comparable to warning about
       every identifier that contains the letter O because it might be
       confused with the digit 0, and so is not the default, but may be
       useful as a local coding convention if the programming environment
       cannot be fixed to display these characters distinctly.
  
! '-Wno-deprecated'
       Do not warn about usage of deprecated features.  *Note Deprecated
       Features::.
  
! '-Wno-deprecated-declarations'
       Do not warn about uses of functions (*note Function Attributes::),
       variables (*note Variable Attributes::), and types (*note Type
!      Attributes::) marked as deprecated by using the 'deprecated'
       attribute.
  
! '-Wno-overflow'
       Do not warn about compile-time overflow in constant expressions.
  
! '-Wno-odr'
       Warn about One Definition Rule violations during link-time
!      optimization.  Requires '-flto-odr-type-merging' to be enabled.
       Enabled by default.
  
! '-Wopenmp-simd'
       Warn if the vectorizer cost model overrides the OpenMP or the Cilk
!      Plus simd directive set by user.  The '-fsimd-cost-model=unlimited'
       option can be used to relax the cost model.
  
! '-Woverride-init (C and Objective-C only)'
       Warn if an initialized field without side effects is overridden
       when using designated initializers (*note Designated Initializers:
       Designated Inits.).
  
!      This warning is included in '-Wextra'.  To get other '-Wextra'
!      warnings without this one, use '-Wextra -Wno-override-init'.
  
! '-Woverride-init-side-effects (C and Objective-C only)'
       Warn if an initialized field with side effects is overridden when
       using designated initializers (*note Designated Initializers:
       Designated Inits.).  This warning is enabled by default.
  
! '-Wpacked'
       Warn if a structure is given the packed attribute, but the packed
       attribute has no effect on the layout or size of the structure.
       Such structures may be mis-aligned for little benefit.  For
!      instance, in this code, the variable 'f.x' in 'struct bar' is
!      misaligned even though 'struct bar' does not itself have the packed
!      attribute:
  
            struct foo {
              int x;
*************** present.
*** 5178,5190 ****
              struct foo f;
            };
  
! `-Wpacked-bitfield-compat'
!      The 4.1, 4.2 and 4.3 series of GCC ignore the `packed' attribute
!      on bit-fields of type `char'.  This has been fixed in GCC 4.4 but
!      the change can lead to differences in the structure layout.  GCC
       informs you when the offset of such a field has changed in GCC 4.4.
!      For example there is no longer a 4-bit padding between field `a'
!      and `b' in this structure:
  
            struct foo
            {
--- 5146,5158 ----
              struct foo f;
            };
  
! '-Wpacked-bitfield-compat'
!      The 4.1, 4.2 and 4.3 series of GCC ignore the 'packed' attribute on
!      bit-fields of type 'char'.  This has been fixed in GCC 4.4 but the
!      change can lead to differences in the structure layout.  GCC
       informs you when the offset of such a field has changed in GCC 4.4.
!      For example there is no longer a 4-bit padding between field 'a'
!      and 'b' in this structure:
  
            struct foo
            {
*************** present.
*** 5193,5221 ****
            } __attribute__ ((packed));
  
       This warning is enabled by default.  Use
!      `-Wno-packed-bitfield-compat' to disable this warning.
  
! `-Wpadded'
       Warn if padding is included in a structure, either to align an
       element of the structure or to align the whole structure.
       Sometimes when this happens it is possible to rearrange the fields
       of the structure to reduce the padding and so make the structure
       smaller.
  
! `-Wredundant-decls'
!      Warn if anything is declared more than once in the same scope,
!      even in cases where multiple declaration is valid and changes
!      nothing.
  
! `-Wnested-externs (C and Objective-C only)'
!      Warn if an `extern' declaration is encountered within a function.
  
! `-Wno-inherited-variadic-ctor'
       Suppress warnings about use of C++11 inheriting constructors when
       the base class inherited from has a C variadic constructor; the
       warning is on by default because the ellipsis is not inherited.
  
! `-Winline'
       Warn if a function that is declared as inline cannot be inlined.
       Even with this option, the compiler does not warn about failures to
       inline functions declared in system headers.
--- 5161,5188 ----
            } __attribute__ ((packed));
  
       This warning is enabled by default.  Use
!      '-Wno-packed-bitfield-compat' to disable this warning.
  
! '-Wpadded'
       Warn if padding is included in a structure, either to align an
       element of the structure or to align the whole structure.
       Sometimes when this happens it is possible to rearrange the fields
       of the structure to reduce the padding and so make the structure
       smaller.
  
! '-Wredundant-decls'
!      Warn if anything is declared more than once in the same scope, even
!      in cases where multiple declaration is valid and changes nothing.
  
! '-Wnested-externs (C and Objective-C only)'
!      Warn if an 'extern' declaration is encountered within a function.
  
! '-Wno-inherited-variadic-ctor'
       Suppress warnings about use of C++11 inheriting constructors when
       the base class inherited from has a C variadic constructor; the
       warning is on by default because the ellipsis is not inherited.
  
! '-Winline'
       Warn if a function that is declared as inline cannot be inlined.
       Even with this option, the compiler does not warn about failures to
       inline functions declared in system headers.
*************** present.
*** 5225,5285 ****
       account the size of the function being inlined and the amount of
       inlining that has already been done in the current function.
       Therefore, seemingly insignificant changes in the source program
!      can cause the warnings produced by `-Winline' to appear or
       disappear.
  
! `-Wno-invalid-offsetof (C++ and Objective-C++ only)'
!      Suppress warnings from applying the `offsetof' macro to a non-POD
!      type.  According to the 2014 ISO C++ standard, applying `offsetof'
       to a non-standard-layout type is undefined.  In existing C++
!      implementations, however, `offsetof' typically gives meaningful
       results.  This flag is for users who are aware that they are
!      writing nonportable code and who have deliberately chosen to
!      ignore the warning about it.
  
!      The restrictions on `offsetof' may be relaxed in a future version
       of the C++ standard.
  
! `-Wno-int-to-pointer-cast'
       Suppress warnings from casts to pointer type of an integer of a
!      different size. In C++, casting to a pointer type of smaller size
!      is an error. `Wint-to-pointer-cast' is enabled by default.
  
! `-Wno-pointer-to-int-cast (C and Objective-C only)'
       Suppress warnings from casts from a pointer to an integer type of a
       different size.
  
! `-Winvalid-pch'
!      Warn if a precompiled header (*note Precompiled Headers::) is
!      found in the search path but can't be used.
  
! `-Wlong-long'
!      Warn if `long long' type is used.  This is enabled by either
!      `-Wpedantic' or `-Wtraditional' in ISO C90 and C++98 modes.  To
!      inhibit the warning messages, use `-Wno-long-long'.
  
! `-Wvariadic-macros'
       Warn if variadic macros are used in ISO C90 mode, or if the GNU
       alternate syntax is used in ISO C99 mode.  This is enabled by
!      either `-Wpedantic' or `-Wtraditional'.  To inhibit the warning
!      messages, use `-Wno-variadic-macros'.
  
! `-Wvarargs'
       Warn upon questionable usage of the macros used to handle variable
!      arguments like `va_start'.  This is default.  To inhibit the
!      warning messages, use `-Wno-varargs'.
  
! `-Wvector-operation-performance'
       Warn if vector operation is not implemented via SIMD capabilities
       of the architecture.  Mainly useful for the performance tuning.
!      Vector operation can be implemented `piecewise', which means that
!      the scalar operation is performed on every vector element; `in
       parallel', which means that the vector operation is implemented
       using scalars of wider type, which normally is more performance
!      efficient; and `as a single scalar', which means that vector fits
       into a scalar type.
  
! `-Wno-virtual-move-assign'
       Suppress warnings about inheriting from a virtual base with a
       non-trivial C++11 move assignment operator.  This is dangerous
       because if the virtual base is reachable along more than one path,
--- 5192,5252 ----
       account the size of the function being inlined and the amount of
       inlining that has already been done in the current function.
       Therefore, seemingly insignificant changes in the source program
!      can cause the warnings produced by '-Winline' to appear or
       disappear.
  
! '-Wno-invalid-offsetof (C++ and Objective-C++ only)'
!      Suppress warnings from applying the 'offsetof' macro to a non-POD
!      type.  According to the 2014 ISO C++ standard, applying 'offsetof'
       to a non-standard-layout type is undefined.  In existing C++
!      implementations, however, 'offsetof' typically gives meaningful
       results.  This flag is for users who are aware that they are
!      writing nonportable code and who have deliberately chosen to ignore
!      the warning about it.
  
!      The restrictions on 'offsetof' may be relaxed in a future version
       of the C++ standard.
  
! '-Wno-int-to-pointer-cast'
       Suppress warnings from casts to pointer type of an integer of a
!      different size.  In C++, casting to a pointer type of smaller size
!      is an error.  'Wint-to-pointer-cast' is enabled by default.
  
! '-Wno-pointer-to-int-cast (C and Objective-C only)'
       Suppress warnings from casts from a pointer to an integer type of a
       different size.
  
! '-Winvalid-pch'
!      Warn if a precompiled header (*note Precompiled Headers::) is found
!      in the search path but can't be used.
  
! '-Wlong-long'
!      Warn if 'long long' type is used.  This is enabled by either
!      '-Wpedantic' or '-Wtraditional' in ISO C90 and C++98 modes.  To
!      inhibit the warning messages, use '-Wno-long-long'.
  
! '-Wvariadic-macros'
       Warn if variadic macros are used in ISO C90 mode, or if the GNU
       alternate syntax is used in ISO C99 mode.  This is enabled by
!      either '-Wpedantic' or '-Wtraditional'.  To inhibit the warning
!      messages, use '-Wno-variadic-macros'.
  
! '-Wvarargs'
       Warn upon questionable usage of the macros used to handle variable
!      arguments like 'va_start'.  This is default.  To inhibit the
!      warning messages, use '-Wno-varargs'.
  
! '-Wvector-operation-performance'
       Warn if vector operation is not implemented via SIMD capabilities
       of the architecture.  Mainly useful for the performance tuning.
!      Vector operation can be implemented 'piecewise', which means that
!      the scalar operation is performed on every vector element; 'in
       parallel', which means that the vector operation is implemented
       using scalars of wider type, which normally is more performance
!      efficient; and 'as a single scalar', which means that vector fits
       into a scalar type.
  
! '-Wno-virtual-move-assign'
       Suppress warnings about inheriting from a virtual base with a
       non-trivial C++11 move assignment operator.  This is dangerous
       because if the virtual base is reachable along more than one path,
*************** present.
*** 5288,5304 ****
       to avoid moving from a moved-from object, this warning can be
       disabled.
  
! `-Wvla'
!      Warn if variable length array is used in the code.  `-Wno-vla'
!      prevents the `-Wpedantic' warning of the variable length array.
  
! `-Wvolatile-register-var'
       Warn if a register variable is declared volatile.  The volatile
       modifier does not inhibit all optimizations that may eliminate
!      reads and/or writes to register variables.  This warning is
!      enabled by `-Wall'.
  
! `-Wdisabled-optimization'
       Warn if a requested optimization pass is disabled.  This warning
       does not generally indicate that there is anything wrong with your
       code; it merely indicates that GCC's optimizers are unable to
--- 5255,5271 ----
       to avoid moving from a moved-from object, this warning can be
       disabled.
  
! '-Wvla'
!      Warn if variable length array is used in the code.  '-Wno-vla'
!      prevents the '-Wpedantic' warning of the variable length array.
  
! '-Wvolatile-register-var'
       Warn if a register variable is declared volatile.  The volatile
       modifier does not inhibit all optimizations that may eliminate
!      reads and/or writes to register variables.  This warning is enabled
!      by '-Wall'.
  
! '-Wdisabled-optimization'
       Warn if a requested optimization pass is disabled.  This warning
       does not generally indicate that there is anything wrong with your
       code; it merely indicates that GCC's optimizers are unable to
*************** present.
*** 5307,5324 ****
       the optimization itself is likely to take inordinate amounts of
       time.
  
! `-Wpointer-sign (C and Objective-C only)'
       Warn for pointer argument passing or assignment with different
       signedness.  This option is only supported for C and Objective-C.
!      It is implied by `-Wall' and by `-Wpedantic', which can be
!      disabled with `-Wno-pointer-sign'.
  
! `-Wstack-protector'
!      This option is only active when `-fstack-protector' is active.  It
       warns about functions that are not protected against stack
       smashing.
  
! `-Woverlength-strings'
       Warn about string constants that are longer than the "minimum
       maximum" length specified in the C standard.  Modern compilers
       generally allow string constants that are much longer than the
--- 5274,5291 ----
       the optimization itself is likely to take inordinate amounts of
       time.
  
! '-Wpointer-sign (C and Objective-C only)'
       Warn for pointer argument passing or assignment with different
       signedness.  This option is only supported for C and Objective-C.
!      It is implied by '-Wall' and by '-Wpedantic', which can be disabled
!      with '-Wno-pointer-sign'.
  
! '-Wstack-protector'
!      This option is only active when '-fstack-protector' is active.  It
       warns about functions that are not protected against stack
       smashing.
  
! '-Woverlength-strings'
       Warn about string constants that are longer than the "minimum
       maximum" length specified in the C standard.  Modern compilers
       generally allow string constants that are much longer than the
*************** present.
*** 5330,5355 ****
       in C99, it was raised to 4095.  C++98 does not specify a normative
       minimum maximum, so we do not diagnose overlength strings in C++.
  
!      This option is implied by `-Wpedantic', and can be disabled with
!      `-Wno-overlength-strings'.
  
- `-Wunsuffixed-float-constants (C and Objective-C only)'
       Issue a warning for any floating constant that does not have a
!      suffix.  When used together with `-Wsystem-headers' it warns about
       such constants in system header files.  This can be useful when
!      preparing code to use with the `FLOAT_CONST_DECIMAL64' pragma from
       the decimal floating-point extension to C99.
  
! `-Wno-designated-init (C and Objective-C only)'
       Suppress warnings when a positional initializer is used to
       initialize a structure that has been marked with the
!      `designated_init' attribute.
  
! `-Whsa'
       Issue a warning when HSAIL cannot be emitted for the compiled
       function or OpenMP construct.
  
- 
  
  File: gcc.info,  Node: Debugging Options,  Next: Optimize Options,  Prev: Warning Options,  Up: Invoking GCC
  
--- 5297,5322 ----
       in C99, it was raised to 4095.  C++98 does not specify a normative
       minimum maximum, so we do not diagnose overlength strings in C++.
  
!      This option is implied by '-Wpedantic', and can be disabled with
!      '-Wno-overlength-strings'.
! 
! '-Wunsuffixed-float-constants (C and Objective-C only)'
  
       Issue a warning for any floating constant that does not have a
!      suffix.  When used together with '-Wsystem-headers' it warns about
       such constants in system header files.  This can be useful when
!      preparing code to use with the 'FLOAT_CONST_DECIMAL64' pragma from
       the decimal floating-point extension to C99.
  
! '-Wno-designated-init (C and Objective-C only)'
       Suppress warnings when a positional initializer is used to
       initialize a structure that has been marked with the
!      'designated_init' attribute.
  
! '-Whsa'
       Issue a warning when HSAIL cannot be emitted for the compiled
       function or OpenMP construct.
  
  
  File: gcc.info,  Node: Debugging Options,  Next: Optimize Options,  Prev: Warning Options,  Up: Invoking GCC
  
*************** File: gcc.info,  Node: Debugging Options
*** 5357,5401 ****
  ======================================
  
  To tell GCC to emit extra information for use by a debugger, in almost
! all cases you need only to add `-g' to your other options.
  
!  GCC allows you to use `-g' with `-O'.  The shortcuts taken by
! optimized code may occasionally be surprising: some variables you
! declared may not exist at all; flow of control may briefly move where
! you did not expect it; some statements may not be executed because they
! compute constant results or their values are already at hand; some
! statements may execute in different places because they have been moved
! out of loops.  Nevertheless it is possible to debug optimized output.
! This makes it reasonable to use the optimizer for programs that might
! have bugs.
  
   If you are not using some other optimization option, consider using
! `-Og' (*note Optimize Options::) with `-g'.  With no `-O' option at
! all, some compiler passes that collect information useful for debugging
! do not run at all, so that `-Og' may result in a better debugging
  experience.
  
! `-g'
       Produce debugging information in the operating system's native
       format (stabs, COFF, XCOFF, or DWARF).  GDB can work with this
       debugging information.
  
!      On most systems that use stabs format, `-g' enables use of extra
       debugging information that only GDB can use; this extra information
       makes debugging work better in GDB but probably makes other
       debuggers crash or refuse to read the program.  If you want to
       control for certain whether to generate the extra information, use
!      `-gstabs+', `-gstabs', `-gxcoff+', `-gxcoff', or `-gvms' (see
       below).
  
! `-ggdb'
       Produce debugging information for use by GDB.  This means to use
       the most expressive format available (DWARF, stabs, or the native
!      format if neither of those are supported), including GDB
!      extensions if at all possible.
  
! `-gdwarf'
! `-gdwarf-VERSION'
       Produce debugging information in DWARF format (if that is
       supported).  The value of VERSION may be either 2, 3, 4 or 5; the
       default version for most targets is 4.  DWARF Version 5 is only
--- 5324,5367 ----
  ======================================
  
  To tell GCC to emit extra information for use by a debugger, in almost
! all cases you need only to add '-g' to your other options.
  
!  GCC allows you to use '-g' with '-O'.  The shortcuts taken by optimized
! code may occasionally be surprising: some variables you declared may not
! exist at all; flow of control may briefly move where you did not expect
! it; some statements may not be executed because they compute constant
! results or their values are already at hand; some statements may execute
! in different places because they have been moved out of loops.
! Nevertheless it is possible to debug optimized output.  This makes it
! reasonable to use the optimizer for programs that might have bugs.
  
   If you are not using some other optimization option, consider using
! '-Og' (*note Optimize Options::) with '-g'.  With no '-O' option at all,
! some compiler passes that collect information useful for debugging do
! not run at all, so that '-Og' may result in a better debugging
  experience.
  
! '-g'
       Produce debugging information in the operating system's native
       format (stabs, COFF, XCOFF, or DWARF).  GDB can work with this
       debugging information.
  
!      On most systems that use stabs format, '-g' enables use of extra
       debugging information that only GDB can use; this extra information
       makes debugging work better in GDB but probably makes other
       debuggers crash or refuse to read the program.  If you want to
       control for certain whether to generate the extra information, use
!      '-gstabs+', '-gstabs', '-gxcoff+', '-gxcoff', or '-gvms' (see
       below).
  
! '-ggdb'
       Produce debugging information for use by GDB.  This means to use
       the most expressive format available (DWARF, stabs, or the native
!      format if neither of those are supported), including GDB extensions
!      if at all possible.
  
! '-gdwarf'
! '-gdwarf-VERSION'
       Produce debugging information in DWARF format (if that is
       supported).  The value of VERSION may be either 2, 3, 4 or 5; the
       default version for most targets is 4.  DWARF Version 5 is only
*************** experience.
*** 5404,5444 ****
       Note that with DWARF Version 2, some ports require and always use
       some non-conflicting DWARF 3 extensions in the unwind tables.
  
!      Version 4 may require GDB 7.0 and `-fvar-tracking-assignments' for
       maximum benefit.
  
       GCC no longer supports DWARF Version 1, which is substantially
       different than Version 2 and later.  For historical reasons, some
!      other DWARF-related options (including `-feliminate-dwarf2-dups'
!      and `-fno-dwarf2-cfi-asm') retain a reference to DWARF Version 2
!      in their names, but apply to all currently-supported versions of
       DWARF.
  
! `-gstabs'
       Produce debugging information in stabs format (if that is
!      supported), without GDB extensions.  This is the format used by
!      DBX on most BSD systems.  On MIPS, Alpha and System V Release 4
!      systems this option produces stabs debugging output that is not
!      understood by DBX or SDB.  On System V Release 4 systems this
!      option requires the GNU assembler.
  
! `-gstabs+'
       Produce debugging information in stabs format (if that is
       supported), using GNU extensions understood only by the GNU
       debugger (GDB).  The use of these extensions is likely to make
       other debuggers crash or refuse to read the program.
  
! `-gcoff'
       Produce debugging information in COFF format (if that is
       supported).  This is the format used by SDB on most System V
       systems prior to System V Release 4.
  
! `-gxcoff'
       Produce debugging information in XCOFF format (if that is
       supported).  This is the format used by the DBX debugger on IBM
       RS/6000 systems.
  
! `-gxcoff+'
       Produce debugging information in XCOFF format (if that is
       supported), using GNU extensions understood only by the GNU
       debugger (GDB).  The use of these extensions is likely to make
--- 5370,5410 ----
       Note that with DWARF Version 2, some ports require and always use
       some non-conflicting DWARF 3 extensions in the unwind tables.
  
!      Version 4 may require GDB 7.0 and '-fvar-tracking-assignments' for
       maximum benefit.
  
       GCC no longer supports DWARF Version 1, which is substantially
       different than Version 2 and later.  For historical reasons, some
!      other DWARF-related options (including '-feliminate-dwarf2-dups'
!      and '-fno-dwarf2-cfi-asm') retain a reference to DWARF Version 2 in
!      their names, but apply to all currently-supported versions of
       DWARF.
  
! '-gstabs'
       Produce debugging information in stabs format (if that is
!      supported), without GDB extensions.  This is the format used by DBX
!      on most BSD systems.  On MIPS, Alpha and System V Release 4 systems
!      this option produces stabs debugging output that is not understood
!      by DBX or SDB.  On System V Release 4 systems this option requires
!      the GNU assembler.
  
! '-gstabs+'
       Produce debugging information in stabs format (if that is
       supported), using GNU extensions understood only by the GNU
       debugger (GDB).  The use of these extensions is likely to make
       other debuggers crash or refuse to read the program.
  
! '-gcoff'
       Produce debugging information in COFF format (if that is
       supported).  This is the format used by SDB on most System V
       systems prior to System V Release 4.
  
! '-gxcoff'
       Produce debugging information in XCOFF format (if that is
       supported).  This is the format used by the DBX debugger on IBM
       RS/6000 systems.
  
! '-gxcoff+'
       Produce debugging information in XCOFF format (if that is
       supported), using GNU extensions understood only by the GNU
       debugger (GDB).  The use of these extensions is likely to make
*************** experience.
*** 5446,5599 ****
       assemblers other than the GNU assembler (GAS) to fail with an
       error.
  
! `-gvms'
       Produce debugging information in Alpha/VMS debug format (if that is
       supported).  This is the format used by DEBUG on Alpha/VMS systems.
  
! `-gLEVEL'
! `-ggdbLEVEL'
! `-gstabsLEVEL'
! `-gcoffLEVEL'
! `-gxcoffLEVEL'
! `-gvmsLEVEL'
       Request debugging information and also use LEVEL to specify how
       much information.  The default level is 2.
  
!      Level 0 produces no debug information at all.  Thus, `-g0' negates
!      `-g'.
  
       Level 1 produces minimal information, enough for making backtraces
       in parts of the program that you don't plan to debug.  This
!      includes descriptions of functions and external variables, and
!      line number tables, but no information about local variables.
  
       Level 3 includes extra information, such as all the macro
       definitions present in the program.  Some debuggers support macro
!      expansion when you use `-g3'.
  
!      `-gdwarf' does not accept a concatenated debug level, to avoid
!      confusion with `-gdwarf-LEVEL'.  Instead use an additional
!      `-gLEVEL' option to change the debug level for DWARF.
  
! `-feliminate-unused-debug-symbols'
       Produce debugging information in stabs format (if that is
       supported), for only symbols that are actually used.
  
! `-femit-class-debug-always'
       Instead of emitting debugging information for a C++ class in only
!      one object file, emit it in all object files using the class.
!      This option should be used only with debuggers that are unable to
!      handle the way GCC normally emits debugging information for
!      classes because using this option increases the size of debugging
       information by as much as a factor of two.
  
! `-fno-merge-debug-strings'
       Direct the linker to not merge together strings in the debugging
       information that are identical in different object files.  Merging
       is not supported by all assemblers or linkers.  Merging decreases
!      the size of the debug information in the output file at the cost
!      of increasing link processing time.  Merging is enabled by default.
  
! `-fdebug-prefix-map=OLD=NEW'
!      When compiling files in directory `OLD', record debugging
!      information describing them as in `NEW' instead.
  
! `-fvar-tracking'
!      Run variable tracking pass.  It computes where variables are
!      stored at each position in code.  Better debugging information is
!      then generated (if the debugging information format supports this
       information).
  
!      It is enabled by default when compiling with optimization (`-Os',
!      `-O', `-O2', ...), debugging information (`-g') and the debug info
       format supports it.
  
! `-fvar-tracking-assignments'
       Annotate assignments to user variables early in the compilation and
       attempt to carry the annotations over throughout the compilation
       all the way to the end, in an attempt to improve debug information
!      while optimizing.  Use of `-gdwarf-4' is recommended along with it.
  
       It can be enabled even if var-tracking is disabled, in which case
       annotations are created and maintained, but discarded at the end.
!      By default, this flag is enabled together with `-fvar-tracking',
       except when selective scheduling is enabled.
  
! `-gsplit-dwarf'
       Separate as much DWARF debugging information as possible into a
!      separate output file with the extension `.dwo'.  This option allows
       the build system to avoid linking files with debug information.  To
       be useful, this option requires a debugger capable of reading
!      `.dwo' files.
  
! `-gpubnames'
!      Generate DWARF `.debug_pubnames' and `.debug_pubtypes' sections.
  
! `-ggnu-pubnames'
!      Generate `.debug_pubnames' and `.debug_pubtypes' sections in a
       format suitable for conversion into a GDB index.  This option is
       only useful with a linker that can produce GDB index version 7.
  
! `-fdebug-types-section'
       When using DWARF Version 4 or higher, type DIEs can be put into
!      their own `.debug_types' section instead of making them part of the
!      `.debug_info' section.  It is more efficient to put them in a
       separate comdat sections since the linker can then remove
!      duplicates.  But not all DWARF consumers support `.debug_types'
!      sections yet and on some objects `.debug_types' produces larger
       instead of smaller debugging information.
  
! `-grecord-gcc-switches'
! 
! `-gno-record-gcc-switches'
       This switch causes the command-line options used to invoke the
       compiler that may affect code generation to be appended to the
       DW_AT_producer attribute in DWARF debugging information.  The
       options are concatenated with spaces separating them from each
       other and from the compiler version.  It is enabled by default.
!      See also `-frecord-gcc-switches' for another way of storing
       compiler options into the object file.
  
! `-gstrict-dwarf'
       Disallow using extensions of later DWARF standard version than
!      selected with `-gdwarf-VERSION'.  On most targets using
       non-conflicting DWARF extensions from later standard versions is
       allowed.
  
! `-gno-strict-dwarf'
       Allow using extensions of later DWARF standard version than
!      selected with `-gdwarf-VERSION'.
  
! `-gz[=TYPE]'
       Produce compressed debug sections in DWARF format, if that is
       supported.  If TYPE is not given, the default type depends on the
       capabilities of the assembler and linker used.  TYPE may be one of
!      `none' (don't compress debug sections), `zlib' (use zlib
!      compression in ELF gABI format), or `zlib-gnu' (use zlib
       compression in traditional GNU format).  If the linker doesn't
       support writing compressed debug sections, the option is rejected.
!      Otherwise, if the assembler does not support them, `-gz' is
       silently ignored when producing object files.
  
! `-feliminate-dwarf2-dups'
       Compress DWARF debugging information by eliminating duplicated
       information about each symbol.  This option only makes sense when
       generating DWARF debugging information.
  
! `-femit-struct-debug-baseonly'
       Emit debug information for struct-like types only when the base
       name of the compilation source file matches the base name of file
       in which the struct is defined.
  
       This option substantially reduces the size of debugging
       information, but at significant potential loss in type information
!      to the debugger.  See `-femit-struct-debug-reduced' for a less
!      aggressive option.  See `-femit-struct-debug-detailed' for more
       detailed control.
  
       This option works only with DWARF debug output.
  
! `-femit-struct-debug-reduced'
       Emit debug information for struct-like types only when the base
       name of the compilation source file matches the base name of file
       in which the type is defined, unless the struct is a template or
--- 5412,5564 ----
       assemblers other than the GNU assembler (GAS) to fail with an
       error.
  
! '-gvms'
       Produce debugging information in Alpha/VMS debug format (if that is
       supported).  This is the format used by DEBUG on Alpha/VMS systems.
  
! '-gLEVEL'
! '-ggdbLEVEL'
! '-gstabsLEVEL'
! '-gcoffLEVEL'
! '-gxcoffLEVEL'
! '-gvmsLEVEL'
       Request debugging information and also use LEVEL to specify how
       much information.  The default level is 2.
  
!      Level 0 produces no debug information at all.  Thus, '-g0' negates
!      '-g'.
  
       Level 1 produces minimal information, enough for making backtraces
       in parts of the program that you don't plan to debug.  This
!      includes descriptions of functions and external variables, and line
!      number tables, but no information about local variables.
  
       Level 3 includes extra information, such as all the macro
       definitions present in the program.  Some debuggers support macro
!      expansion when you use '-g3'.
  
!      '-gdwarf' does not accept a concatenated debug level, to avoid
!      confusion with '-gdwarf-LEVEL'.  Instead use an additional
!      '-gLEVEL' option to change the debug level for DWARF.
  
! '-feliminate-unused-debug-symbols'
       Produce debugging information in stabs format (if that is
       supported), for only symbols that are actually used.
  
! '-femit-class-debug-always'
       Instead of emitting debugging information for a C++ class in only
!      one object file, emit it in all object files using the class.  This
!      option should be used only with debuggers that are unable to handle
!      the way GCC normally emits debugging information for classes
!      because using this option increases the size of debugging
       information by as much as a factor of two.
  
! '-fno-merge-debug-strings'
       Direct the linker to not merge together strings in the debugging
       information that are identical in different object files.  Merging
       is not supported by all assemblers or linkers.  Merging decreases
!      the size of the debug information in the output file at the cost of
!      increasing link processing time.  Merging is enabled by default.
  
! '-fdebug-prefix-map=OLD=NEW'
!      When compiling files in directory 'OLD', record debugging
!      information describing them as in 'NEW' instead.
  
! '-fvar-tracking'
!      Run variable tracking pass.  It computes where variables are stored
!      at each position in code.  Better debugging information is then
!      generated (if the debugging information format supports this
       information).
  
!      It is enabled by default when compiling with optimization ('-Os',
!      '-O', '-O2', ...), debugging information ('-g') and the debug info
       format supports it.
  
! '-fvar-tracking-assignments'
       Annotate assignments to user variables early in the compilation and
       attempt to carry the annotations over throughout the compilation
       all the way to the end, in an attempt to improve debug information
!      while optimizing.  Use of '-gdwarf-4' is recommended along with it.
  
       It can be enabled even if var-tracking is disabled, in which case
       annotations are created and maintained, but discarded at the end.
!      By default, this flag is enabled together with '-fvar-tracking',
       except when selective scheduling is enabled.
  
! '-gsplit-dwarf'
       Separate as much DWARF debugging information as possible into a
!      separate output file with the extension '.dwo'.  This option allows
       the build system to avoid linking files with debug information.  To
       be useful, this option requires a debugger capable of reading
!      '.dwo' files.
  
! '-gpubnames'
!      Generate DWARF '.debug_pubnames' and '.debug_pubtypes' sections.
  
! '-ggnu-pubnames'
!      Generate '.debug_pubnames' and '.debug_pubtypes' sections in a
       format suitable for conversion into a GDB index.  This option is
       only useful with a linker that can produce GDB index version 7.
  
! '-fdebug-types-section'
       When using DWARF Version 4 or higher, type DIEs can be put into
!      their own '.debug_types' section instead of making them part of the
!      '.debug_info' section.  It is more efficient to put them in a
       separate comdat sections since the linker can then remove
!      duplicates.  But not all DWARF consumers support '.debug_types'
!      sections yet and on some objects '.debug_types' produces larger
       instead of smaller debugging information.
  
! '-grecord-gcc-switches'
! '-gno-record-gcc-switches'
       This switch causes the command-line options used to invoke the
       compiler that may affect code generation to be appended to the
       DW_AT_producer attribute in DWARF debugging information.  The
       options are concatenated with spaces separating them from each
       other and from the compiler version.  It is enabled by default.
!      See also '-frecord-gcc-switches' for another way of storing
       compiler options into the object file.
  
! '-gstrict-dwarf'
       Disallow using extensions of later DWARF standard version than
!      selected with '-gdwarf-VERSION'.  On most targets using
       non-conflicting DWARF extensions from later standard versions is
       allowed.
  
! '-gno-strict-dwarf'
       Allow using extensions of later DWARF standard version than
!      selected with '-gdwarf-VERSION'.
  
! '-gz[=TYPE]'
       Produce compressed debug sections in DWARF format, if that is
       supported.  If TYPE is not given, the default type depends on the
       capabilities of the assembler and linker used.  TYPE may be one of
!      'none' (don't compress debug sections), 'zlib' (use zlib
!      compression in ELF gABI format), or 'zlib-gnu' (use zlib
       compression in traditional GNU format).  If the linker doesn't
       support writing compressed debug sections, the option is rejected.
!      Otherwise, if the assembler does not support them, '-gz' is
       silently ignored when producing object files.
  
! '-feliminate-dwarf2-dups'
       Compress DWARF debugging information by eliminating duplicated
       information about each symbol.  This option only makes sense when
       generating DWARF debugging information.
  
! '-femit-struct-debug-baseonly'
       Emit debug information for struct-like types only when the base
       name of the compilation source file matches the base name of file
       in which the struct is defined.
  
       This option substantially reduces the size of debugging
       information, but at significant potential loss in type information
!      to the debugger.  See '-femit-struct-debug-reduced' for a less
!      aggressive option.  See '-femit-struct-debug-detailed' for more
       detailed control.
  
       This option works only with DWARF debug output.
  
! '-femit-struct-debug-reduced'
       Emit debug information for struct-like types only when the base
       name of the compilation source file matches the base name of file
       in which the type is defined, unless the struct is a template or
*************** experience.
*** 5601,5668 ****
  
       This option significantly reduces the size of debugging
       information, with some potential loss in type information to the
!      debugger.  See `-femit-struct-debug-baseonly' for a more
!      aggressive option.  See `-femit-struct-debug-detailed' for more
!      detailed control.
  
       This option works only with DWARF debug output.
  
! `-femit-struct-debug-detailed[=SPEC-LIST]'
       Specify the struct-like types for which the compiler generates
       debug information.  The intent is to reduce duplicate struct debug
       information between different object files within the same program.
  
!      This option is a detailed version of `-femit-struct-debug-reduced'
!      and `-femit-struct-debug-baseonly', which serves for most needs.
  
       A specification has the syntax
!      [`dir:'|`ind:'][`ord:'|`gen:'](`any'|`sys'|`base'|`none')
  
       The optional first word limits the specification to structs that
!      are used directly (`dir:') or used indirectly (`ind:').  A struct
       type is used directly when it is the type of a variable, member.
!      Indirect uses arise through pointers to structs.  That is, when
!      use of an incomplete struct is valid, the use is indirect.  An
!      example is `struct one direct; struct two * indirect;'.
  
       The optional second word limits the specification to ordinary
!      structs (`ord:') or generic structs (`gen:').  Generic structs are
       a bit complicated to explain.  For C++, these are non-explicit
!      specializations of template classes, or non-template classes
!      within the above.  Other programming languages have generics, but
!      `-femit-struct-debug-detailed' does not yet implement them.
  
       The third word specifies the source files for those structs for
       which the compiler should emit debug information.  The values
!      `none' and `any' have the normal meaning.  The value `base' means
       that the base of name of the file in which the type declaration
       appears must match the base of the name of the main compilation
!      file.  In practice, this means that when compiling `foo.c', debug
       information is generated for types declared in that file and
!      `foo.h', but not other header files.  The value `sys' means those
!      types satisfying `base' or declared in system or compiler headers.
  
       You may need to experiment to determine the best settings for your
       application.
  
!      The default is `-femit-struct-debug-detailed=all'.
  
       This option works only with DWARF debug output.
  
! `-fno-dwarf2-cfi-asm'
!      Emit DWARF unwind info as compiler generated `.eh_frame' section
!      instead of using GAS `.cfi_*' directives.
  
! `-fno-eliminate-unused-debug-types'
       Normally, when producing DWARF output, GCC avoids producing debug
       symbol output for types that are nowhere used in the source file
       being compiled.  Sometimes it is useful to have GCC emit debugging
       information for all types declared in a compilation unit,
       regardless of whether or not they are actually used in that
!      compilation unit, for example if, in the debugger, you want to
!      cast a value to a type that is not actually used in your program
!      (but is declared).  More often, however, this results in a
!      significant amount of wasted space.
  
  
  File: gcc.info,  Node: Optimize Options,  Next: Instrumentation Options,  Prev: Debugging Options,  Up: Invoking GCC
--- 5566,5633 ----
  
       This option significantly reduces the size of debugging
       information, with some potential loss in type information to the
!      debugger.  See '-femit-struct-debug-baseonly' for a more aggressive
!      option.  See '-femit-struct-debug-detailed' for more detailed
!      control.
  
       This option works only with DWARF debug output.
  
! '-femit-struct-debug-detailed[=SPEC-LIST]'
       Specify the struct-like types for which the compiler generates
       debug information.  The intent is to reduce duplicate struct debug
       information between different object files within the same program.
  
!      This option is a detailed version of '-femit-struct-debug-reduced'
!      and '-femit-struct-debug-baseonly', which serves for most needs.
  
       A specification has the syntax
!      ['dir:'|'ind:']['ord:'|'gen:']('any'|'sys'|'base'|'none')
  
       The optional first word limits the specification to structs that
!      are used directly ('dir:') or used indirectly ('ind:').  A struct
       type is used directly when it is the type of a variable, member.
!      Indirect uses arise through pointers to structs.  That is, when use
!      of an incomplete struct is valid, the use is indirect.  An example
!      is 'struct one direct; struct two * indirect;'.
  
       The optional second word limits the specification to ordinary
!      structs ('ord:') or generic structs ('gen:').  Generic structs are
       a bit complicated to explain.  For C++, these are non-explicit
!      specializations of template classes, or non-template classes within
!      the above.  Other programming languages have generics, but
!      '-femit-struct-debug-detailed' does not yet implement them.
  
       The third word specifies the source files for those structs for
       which the compiler should emit debug information.  The values
!      'none' and 'any' have the normal meaning.  The value 'base' means
       that the base of name of the file in which the type declaration
       appears must match the base of the name of the main compilation
!      file.  In practice, this means that when compiling 'foo.c', debug
       information is generated for types declared in that file and
!      'foo.h', but not other header files.  The value 'sys' means those
!      types satisfying 'base' or declared in system or compiler headers.
  
       You may need to experiment to determine the best settings for your
       application.
  
!      The default is '-femit-struct-debug-detailed=all'.
  
       This option works only with DWARF debug output.
  
! '-fno-dwarf2-cfi-asm'
!      Emit DWARF unwind info as compiler generated '.eh_frame' section
!      instead of using GAS '.cfi_*' directives.
  
! '-fno-eliminate-unused-debug-types'
       Normally, when producing DWARF output, GCC avoids producing debug
       symbol output for types that are nowhere used in the source file
       being compiled.  Sometimes it is useful to have GCC emit debugging
       information for all types declared in a compilation unit,
       regardless of whether or not they are actually used in that
!      compilation unit, for example if, in the debugger, you want to cast
!      a value to a type that is not actually used in your program (but is
!      declared).  More often, however, this results in a significant
!      amount of wasted space.
  
  
  File: gcc.info,  Node: Optimize Options,  Next: Instrumentation Options,  Prev: Debugging Options,  Up: Invoking GCC
*************** between statements, you can then assign
*** 5679,5716 ****
  change the program counter to any other statement in the function and
  get exactly the results you expect from the source code.
  
!  Turning on optimization flags makes the compiler attempt to improve
! the performance and/or code size at the expense of compilation time and
  possibly the ability to debug the program.
  
   The compiler performs optimization based on the knowledge it has of the
  program.  Compiling multiple files at once to a single output file mode
! allows the compiler to use information gained from all of the files
! when compiling each of them.
  
   Not all optimizations are controlled directly by a flag.  Only
  optimizations that have a flag are listed in this section.
  
!  Most optimizations are only enabled if an `-O' level is set on the
  command line.  Otherwise they are disabled, even if individual
  optimization flags are specified.
  
   Depending on the target and how GCC was configured, a slightly
! different set of optimizations may be enabled at each `-O' level than
! those listed here.  You can invoke GCC with `-Q --help=optimizers' to
  find out the exact set of optimizations that are enabled at each level.
  *Note Overall Options::, for examples.
  
! `-O'
! `-O1'
       Optimize.  Optimizing compilation takes somewhat more time, and a
       lot more memory for a large function.
  
!      With `-O', the compiler tries to reduce code size and execution
       time, without performing any optimizations that take a great deal
       of compilation time.
  
!      `-O' turns on the following optimization flags:
            -fauto-inc-dec
            -fbranch-count-reg
            -fcombine-stack-adjustments
--- 5644,5681 ----
  change the program counter to any other statement in the function and
  get exactly the results you expect from the source code.
  
!  Turning on optimization flags makes the compiler attempt to improve the
! performance and/or code size at the expense of compilation time and
  possibly the ability to debug the program.
  
   The compiler performs optimization based on the knowledge it has of the
  program.  Compiling multiple files at once to a single output file mode
! allows the compiler to use information gained from all of the files when
! compiling each of them.
  
   Not all optimizations are controlled directly by a flag.  Only
  optimizations that have a flag are listed in this section.
  
!  Most optimizations are only enabled if an '-O' level is set on the
  command line.  Otherwise they are disabled, even if individual
  optimization flags are specified.
  
   Depending on the target and how GCC was configured, a slightly
! different set of optimizations may be enabled at each '-O' level than
! those listed here.  You can invoke GCC with '-Q --help=optimizers' to
  find out the exact set of optimizations that are enabled at each level.
  *Note Overall Options::, for examples.
  
! '-O'
! '-O1'
       Optimize.  Optimizing compilation takes somewhat more time, and a
       lot more memory for a large function.
  
!      With '-O', the compiler tries to reduce code size and execution
       time, without performing any optimizations that take a great deal
       of compilation time.
  
!      '-O' turns on the following optimization flags:
            -fauto-inc-dec
            -fbranch-count-reg
            -fcombine-stack-adjustments
*************** find out the exact set of optimizations
*** 5753,5768 ****
            -ftree-ter
            -funit-at-a-time
  
!      `-O' also turns on `-fomit-frame-pointer' on machines where doing
       so does not interfere with debugging.
  
! `-O2'
       Optimize even more.  GCC performs nearly all supported
       optimizations that do not involve a space-speed tradeoff.  As
!      compared to `-O', this option increases both compilation time and
       the performance of the generated code.
  
!      `-O2' turns on all optimization flags specified by `-O'.  It also
       turns on the following optimization flags:
            -fthread-jumps
            -falign-functions  -falign-jumps
--- 5718,5733 ----
            -ftree-ter
            -funit-at-a-time
  
!      '-O' also turns on '-fomit-frame-pointer' on machines where doing
       so does not interfere with debugging.
  
! '-O2'
       Optimize even more.  GCC performs nearly all supported
       optimizations that do not involve a space-speed tradeoff.  As
!      compared to '-O', this option increases both compilation time and
       the performance of the generated code.
  
!      '-O2' turns on all optimization flags specified by '-O'.  It also
       turns on the following optimization flags:
            -fthread-jumps
            -falign-functions  -falign-jumps
*************** find out the exact set of optimizations
*** 5799,5999 ****
            -ftree-vrp
            -fipa-ra
  
!      Please note the warning under `-fgcse' about invoking `-O2' on
       programs that use computed gotos.
  
! `-O3'
!      Optimize yet more.  `-O3' turns on all optimizations specified by
!      `-O2' and also turns on the `-finline-functions',
!      `-funswitch-loops', `-fpredictive-commoning',
!      `-fgcse-after-reload', `-ftree-loop-vectorize',
!      `-ftree-loop-distribute-patterns', `-fsplit-paths'
!      `-ftree-slp-vectorize', `-fvect-cost-model', `-ftree-partial-pre'
!      and `-fipa-cp-clone' options.
  
! `-O0'
       Reduce compilation time and make debugging produce the expected
       results.  This is the default.
  
! `-Os'
!      Optimize for size.  `-Os' enables all `-O2' optimizations that do
       not typically increase code size.  It also performs further
       optimizations designed to reduce code size.
  
!      `-Os' disables the following optimization flags:
            -falign-functions  -falign-jumps  -falign-loops
            -falign-labels  -freorder-blocks  -freorder-blocks-algorithm=stc
            -freorder-blocks-and-partition  -fprefetch-loop-arrays
  
! `-Ofast'
!      Disregard strict standards compliance.  `-Ofast' enables all `-O3'
       optimizations.  It also enables optimizations that are not valid
!      for all standard-compliant programs.  It turns on `-ffast-math'
!      and the Fortran-specific `-fno-protect-parens' and
!      `-fstack-arrays'.
  
! `-Og'
!      Optimize debugging experience.  `-Og' enables optimizations that
!      do not interfere with debugging. It should be the optimization
!      level of choice for the standard edit-compile-debug cycle, offering
!      a reasonable level of optimization while maintaining fast
!      compilation and a good debugging experience.
  
!  If you use multiple `-O' options, with or without level numbers, the
  last such option is the one that is effective.
  
!  Options of the form `-fFLAG' specify machine-independent flags.  Most
  flags have both positive and negative forms; the negative form of
! `-ffoo' is `-fno-foo'.  In the table below, only one of the forms is
! listed--the one you typically use.  You can figure out the other form
! by either removing `no-' or adding it.
  
   The following options control specific optimizations.  They are either
! activated by `-O' options or are related to ones that are.  You can use
  the following flags in the rare cases when "fine-tuning" of
  optimizations to be performed is desired.
  
! `-fno-defer-pop'
       Always pop the arguments to each function call as soon as that
       function returns.  For machines that must pop arguments after a
       function call, the compiler normally lets arguments accumulate on
       the stack for several function calls and pops them all at once.
  
!      Disabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fforward-propagate'
       Perform a forward propagation pass on RTL.  The pass tries to
       combine two instructions and checks if the result can be
       simplified.  If loop unrolling is active, two passes are performed
       and the second is scheduled after loop unrolling.
  
!      This option is enabled by default at optimization levels `-O',
!      `-O2', `-O3', `-Os'.
  
! `-ffp-contract=STYLE'
!      `-ffp-contract=off' disables floating-point expression contraction.
!      `-ffp-contract=fast' enables floating-point expression contraction
       such as forming of fused multiply-add operations if the target has
!      native support for them.  `-ffp-contract=on' enables
!      floating-point expression contraction if allowed by the language
!      standard.  This is currently not implemented and treated equal to
!      `-ffp-contract=off'.
  
!      The default is `-ffp-contract=fast'.
  
! `-fomit-frame-pointer'
!      Don't keep the frame pointer in a register for functions that
!      don't need one.  This avoids the instructions to save, set up and
!      restore frame pointers; it also makes an extra register available
!      in many functions.  *It also makes debugging impossible on some
!      machines.*
  
       On some machines, such as the VAX, this flag has no effect, because
       the standard calling sequence automatically handles the frame
       pointer and nothing is saved by pretending it doesn't exist.  The
!      machine-description macro `FRAME_POINTER_REQUIRED' controls
!      whether a target machine supports this flag.  *Note Register
!      Usage: (gccint)Registers.
  
       The default setting (when not optimizing for size) for 32-bit
       GNU/Linux x86 and 32-bit Darwin x86 targets is
!      `-fomit-frame-pointer'.  You can configure GCC with the
!      `--enable-frame-pointer' configure option to change the default.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-foptimize-sibling-calls'
       Optimize sibling and tail recursive calls.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-foptimize-strlen'
!      Optimize various standard C string functions (e.g. `strlen',
!      `strchr' or `strcpy') and their `_FORTIFY_SOURCE' counterparts
!      into faster alternatives.
  
!      Enabled at levels `-O2', `-O3'.
  
! `-fno-inline'
!      Do not expand any functions inline apart from those marked with
!      the `always_inline' attribute.  This is the default when not
       optimizing.
  
!      Single functions can be exempted from inlining by marking them
!      with the `noinline' attribute.
  
! `-finline-small-functions'
       Integrate functions into their callers when their body is smaller
       than expected function call code (so overall size of program gets
       smaller).  The compiler heuristically decides which functions are
       simple enough to be worth integrating in this way.  This inlining
       applies to all functions, even those not declared inline.
  
!      Enabled at level `-O2'.
  
! `-findirect-inlining'
       Inline also indirect calls that are discovered to be known at
       compile time thanks to previous inlining.  This option has any
       effect only when inlining itself is turned on by the
!      `-finline-functions' or `-finline-small-functions' options.
  
!      Enabled at level `-O2'.
  
! `-finline-functions'
       Consider all functions for inlining, even if they are not declared
       inline.  The compiler heuristically decides which functions are
       worth integrating in this way.
  
       If all calls to a given function are integrated, and the function
!      is declared `static', then the function is normally not output as
       assembler code in its own right.
  
!      Enabled at level `-O3'.
  
! `-finline-functions-called-once'
!      Consider all `static' functions called once for inlining into their
!      caller even if they are not marked `inline'.  If a call to a given
       function is integrated, then the function is not output as
       assembler code in its own right.
  
!      Enabled at levels `-O1', `-O2', `-O3' and `-Os'.
  
! `-fearly-inlining'
!      Inline functions marked by `always_inline' and functions whose
!      body seems smaller than the function call overhead early before
!      doing `-fprofile-generate' instrumentation and real inlining pass.
!      Doing so makes profiling significantly cheaper and usually
!      inlining faster on programs having large chains of nested wrapper
!      functions.
  
       Enabled by default.
  
! `-fipa-sra'
       Perform interprocedural scalar replacement of aggregates, removal
       of unused parameters and replacement of parameters passed by
       reference by parameters passed by value.
  
!      Enabled at levels `-O2', `-O3' and `-Os'.
  
! `-finline-limit=N'
       By default, GCC limits the size of functions that can be inlined.
       This flag allows coarse control of this limit.  N is the size of
       functions that can be inlined in number of pseudo instructions.
  
       Inlining is actually controlled by a number of parameters, which
!      may be specified individually by using `--param NAME=VALUE'.  The
!      `-finline-limit=N' option sets some of these parameters as follows:
  
!     `max-inline-insns-single'
            is set to N/2.
! 
!     `max-inline-insns-auto'
            is set to N/2.
  
       See below for a documentation of the individual parameters
       controlling inlining and for the defaults of these parameters.
  
!      _Note:_ there may be no value to `-finline-limit' that results in
       default behavior.
  
       _Note:_ pseudo instruction represents, in this particular context,
--- 5764,5960 ----
            -ftree-vrp
            -fipa-ra
  
!      Please note the warning under '-fgcse' about invoking '-O2' on
       programs that use computed gotos.
  
! '-O3'
!      Optimize yet more.  '-O3' turns on all optimizations specified by
!      '-O2' and also turns on the '-finline-functions',
!      '-funswitch-loops', '-fpredictive-commoning',
!      '-fgcse-after-reload', '-ftree-loop-vectorize',
!      '-ftree-loop-distribute-patterns', '-fsplit-paths'
!      '-ftree-slp-vectorize', '-fvect-cost-model', '-ftree-partial-pre'
!      and '-fipa-cp-clone' options.
  
! '-O0'
       Reduce compilation time and make debugging produce the expected
       results.  This is the default.
  
! '-Os'
!      Optimize for size.  '-Os' enables all '-O2' optimizations that do
       not typically increase code size.  It also performs further
       optimizations designed to reduce code size.
  
!      '-Os' disables the following optimization flags:
            -falign-functions  -falign-jumps  -falign-loops
            -falign-labels  -freorder-blocks  -freorder-blocks-algorithm=stc
            -freorder-blocks-and-partition  -fprefetch-loop-arrays
  
! '-Ofast'
!      Disregard strict standards compliance.  '-Ofast' enables all '-O3'
       optimizations.  It also enables optimizations that are not valid
!      for all standard-compliant programs.  It turns on '-ffast-math' and
!      the Fortran-specific '-fno-protect-parens' and '-fstack-arrays'.
  
! '-Og'
!      Optimize debugging experience.  '-Og' enables optimizations that do
!      not interfere with debugging.  It should be the optimization level
!      of choice for the standard edit-compile-debug cycle, offering a
!      reasonable level of optimization while maintaining fast compilation
!      and a good debugging experience.
  
!  If you use multiple '-O' options, with or without level numbers, the
  last such option is the one that is effective.
  
!  Options of the form '-fFLAG' specify machine-independent flags.  Most
  flags have both positive and negative forms; the negative form of
! '-ffoo' is '-fno-foo'.  In the table below, only one of the forms is
! listed--the one you typically use.  You can figure out the other form by
! either removing 'no-' or adding it.
  
   The following options control specific optimizations.  They are either
! activated by '-O' options or are related to ones that are.  You can use
  the following flags in the rare cases when "fine-tuning" of
  optimizations to be performed is desired.
  
! '-fno-defer-pop'
       Always pop the arguments to each function call as soon as that
       function returns.  For machines that must pop arguments after a
       function call, the compiler normally lets arguments accumulate on
       the stack for several function calls and pops them all at once.
  
!      Disabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fforward-propagate'
       Perform a forward propagation pass on RTL.  The pass tries to
       combine two instructions and checks if the result can be
       simplified.  If loop unrolling is active, two passes are performed
       and the second is scheduled after loop unrolling.
  
!      This option is enabled by default at optimization levels '-O',
!      '-O2', '-O3', '-Os'.
  
! '-ffp-contract=STYLE'
!      '-ffp-contract=off' disables floating-point expression contraction.
!      '-ffp-contract=fast' enables floating-point expression contraction
       such as forming of fused multiply-add operations if the target has
!      native support for them.  '-ffp-contract=on' enables floating-point
!      expression contraction if allowed by the language standard.  This
!      is currently not implemented and treated equal to
!      '-ffp-contract=off'.
  
!      The default is '-ffp-contract=fast'.
  
! '-fomit-frame-pointer'
!      Don't keep the frame pointer in a register for functions that don't
!      need one.  This avoids the instructions to save, set up and restore
!      frame pointers; it also makes an extra register available in many
!      functions.  *It also makes debugging impossible on some machines.*
  
       On some machines, such as the VAX, this flag has no effect, because
       the standard calling sequence automatically handles the frame
       pointer and nothing is saved by pretending it doesn't exist.  The
!      machine-description macro 'FRAME_POINTER_REQUIRED' controls whether
!      a target machine supports this flag.  *Note Register Usage:
!      (gccint)Registers.
  
       The default setting (when not optimizing for size) for 32-bit
       GNU/Linux x86 and 32-bit Darwin x86 targets is
!      '-fomit-frame-pointer'.  You can configure GCC with the
!      '--enable-frame-pointer' configure option to change the default.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-foptimize-sibling-calls'
       Optimize sibling and tail recursive calls.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-foptimize-strlen'
!      Optimize various standard C string functions (e.g.  'strlen',
!      'strchr' or 'strcpy') and their '_FORTIFY_SOURCE' counterparts into
!      faster alternatives.
  
!      Enabled at levels '-O2', '-O3'.
  
! '-fno-inline'
!      Do not expand any functions inline apart from those marked with the
!      'always_inline' attribute.  This is the default when not
       optimizing.
  
!      Single functions can be exempted from inlining by marking them with
!      the 'noinline' attribute.
  
! '-finline-small-functions'
       Integrate functions into their callers when their body is smaller
       than expected function call code (so overall size of program gets
       smaller).  The compiler heuristically decides which functions are
       simple enough to be worth integrating in this way.  This inlining
       applies to all functions, even those not declared inline.
  
!      Enabled at level '-O2'.
  
! '-findirect-inlining'
       Inline also indirect calls that are discovered to be known at
       compile time thanks to previous inlining.  This option has any
       effect only when inlining itself is turned on by the
!      '-finline-functions' or '-finline-small-functions' options.
  
!      Enabled at level '-O2'.
  
! '-finline-functions'
       Consider all functions for inlining, even if they are not declared
       inline.  The compiler heuristically decides which functions are
       worth integrating in this way.
  
       If all calls to a given function are integrated, and the function
!      is declared 'static', then the function is normally not output as
       assembler code in its own right.
  
!      Enabled at level '-O3'.
  
! '-finline-functions-called-once'
!      Consider all 'static' functions called once for inlining into their
!      caller even if they are not marked 'inline'.  If a call to a given
       function is integrated, then the function is not output as
       assembler code in its own right.
  
!      Enabled at levels '-O1', '-O2', '-O3' and '-Os'.
  
! '-fearly-inlining'
!      Inline functions marked by 'always_inline' and functions whose body
!      seems smaller than the function call overhead early before doing
!      '-fprofile-generate' instrumentation and real inlining pass.  Doing
!      so makes profiling significantly cheaper and usually inlining
!      faster on programs having large chains of nested wrapper functions.
  
       Enabled by default.
  
! '-fipa-sra'
       Perform interprocedural scalar replacement of aggregates, removal
       of unused parameters and replacement of parameters passed by
       reference by parameters passed by value.
  
!      Enabled at levels '-O2', '-O3' and '-Os'.
  
! '-finline-limit=N'
       By default, GCC limits the size of functions that can be inlined.
       This flag allows coarse control of this limit.  N is the size of
       functions that can be inlined in number of pseudo instructions.
  
       Inlining is actually controlled by a number of parameters, which
!      may be specified individually by using '--param NAME=VALUE'.  The
!      '-finline-limit=N' option sets some of these parameters as follows:
  
!      'max-inline-insns-single'
            is set to N/2.
!      'max-inline-insns-auto'
            is set to N/2.
  
       See below for a documentation of the individual parameters
       controlling inlining and for the defaults of these parameters.
  
!      _Note:_ there may be no value to '-finline-limit' that results in
       default behavior.
  
       _Note:_ pseudo instruction represents, in this particular context,
*************** optimizations to be performed is desired
*** 6001,6081 ****
       represent a count of assembly instructions and as such its exact
       meaning might change from one release to an another.
  
! `-fno-keep-inline-dllexport'
!      This is a more fine-grained version of `-fkeep-inline-functions',
       which applies only to functions that are declared using the
!      `dllexport' attribute or declspec (*Note Declaring Attributes of
       Functions: Function Attributes.)
  
! `-fkeep-inline-functions'
!      In C, emit `static' functions that are declared `inline' into the
       object file, even if the function has been inlined into all of its
!      callers.  This switch does not affect functions using the `extern
       inline' extension in GNU C90.  In C++, emit any and all inline
       functions into the object file.
  
! `-fkeep-static-functions'
!      Emit `static' functions into the object file, even if the function
       is never used.
  
! `-fkeep-static-consts'
!      Emit variables declared `static const' when optimization isn't
       turned on, even if the variables aren't referenced.
  
       GCC enables this option by default.  If you want to force the
       compiler to check if a variable is referenced, regardless of
       whether or not optimization is turned on, use the
!      `-fno-keep-static-consts' option.
  
! `-fmerge-constants'
       Attempt to merge identical constants (string constants and
       floating-point constants) across compilation units.
  
       This option is the default for optimized compilation if the
!      assembler and linker support it.  Use `-fno-merge-constants' to
       inhibit this behavior.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fmerge-all-constants'
       Attempt to merge identical constants and identical variables.
  
!      This option implies `-fmerge-constants'.  In addition to
!      `-fmerge-constants' this considers e.g. even constant initialized
       arrays or initialized constant variables with integral or
       floating-point types.  Languages like C or C++ require each
       variable, including multiple instances of the same variable in
       recursive calls, to have distinct locations, so using this option
       results in non-conforming behavior.
  
! `-fmodulo-sched'
       Perform swing modulo scheduling immediately before the first
       scheduling pass.  This pass looks at innermost loops and reorders
       their instructions by overlapping different iterations.
  
! `-fmodulo-sched-allow-regmoves'
       Perform more aggressive SMS-based modulo scheduling with register
!      moves allowed.  By setting this flag certain anti-dependences
!      edges are deleted, which triggers the generation of reg-moves
!      based on the life-range analysis.  This option is effective only
!      with `-fmodulo-sched' enabled.
  
! `-fno-branch-count-reg'
       Avoid running a pass scanning for opportunities to use "decrement
       and branch" instructions on a count register instead of generating
       sequences of instructions that decrement a register, compare it
       against zero, and then branch based upon the result.  This option
!      is only meaningful on architectures that support such
!      instructions, which include x86, PowerPC, IA-64 and S/390.  Note
!      that the `-fno-branch-count-reg' option doesn't remove the
!      decrement and branch instructions from the generated instruction
!      stream introduced by other optimization passes.
  
!      Enabled by default at `-O1' and higher.
  
!      The default is `-fbranch-count-reg'.
  
! `-fno-function-cse'
       Do not put function addresses in registers; make each instruction
       that calls a constant function contain the function's address
       explicitly.
--- 5962,6042 ----
       represent a count of assembly instructions and as such its exact
       meaning might change from one release to an another.
  
! '-fno-keep-inline-dllexport'
!      This is a more fine-grained version of '-fkeep-inline-functions',
       which applies only to functions that are declared using the
!      'dllexport' attribute or declspec (*Note Declaring Attributes of
       Functions: Function Attributes.)
  
! '-fkeep-inline-functions'
!      In C, emit 'static' functions that are declared 'inline' into the
       object file, even if the function has been inlined into all of its
!      callers.  This switch does not affect functions using the 'extern
       inline' extension in GNU C90.  In C++, emit any and all inline
       functions into the object file.
  
! '-fkeep-static-functions'
!      Emit 'static' functions into the object file, even if the function
       is never used.
  
! '-fkeep-static-consts'
!      Emit variables declared 'static const' when optimization isn't
       turned on, even if the variables aren't referenced.
  
       GCC enables this option by default.  If you want to force the
       compiler to check if a variable is referenced, regardless of
       whether or not optimization is turned on, use the
!      '-fno-keep-static-consts' option.
  
! '-fmerge-constants'
       Attempt to merge identical constants (string constants and
       floating-point constants) across compilation units.
  
       This option is the default for optimized compilation if the
!      assembler and linker support it.  Use '-fno-merge-constants' to
       inhibit this behavior.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fmerge-all-constants'
       Attempt to merge identical constants and identical variables.
  
!      This option implies '-fmerge-constants'.  In addition to
!      '-fmerge-constants' this considers e.g. even constant initialized
       arrays or initialized constant variables with integral or
       floating-point types.  Languages like C or C++ require each
       variable, including multiple instances of the same variable in
       recursive calls, to have distinct locations, so using this option
       results in non-conforming behavior.
  
! '-fmodulo-sched'
       Perform swing modulo scheduling immediately before the first
       scheduling pass.  This pass looks at innermost loops and reorders
       their instructions by overlapping different iterations.
  
! '-fmodulo-sched-allow-regmoves'
       Perform more aggressive SMS-based modulo scheduling with register
!      moves allowed.  By setting this flag certain anti-dependences edges
!      are deleted, which triggers the generation of reg-moves based on
!      the life-range analysis.  This option is effective only with
!      '-fmodulo-sched' enabled.
  
! '-fno-branch-count-reg'
       Avoid running a pass scanning for opportunities to use "decrement
       and branch" instructions on a count register instead of generating
       sequences of instructions that decrement a register, compare it
       against zero, and then branch based upon the result.  This option
!      is only meaningful on architectures that support such instructions,
!      which include x86, PowerPC, IA-64 and S/390.  Note that the
!      '-fno-branch-count-reg' option doesn't remove the decrement and
!      branch instructions from the generated instruction stream
!      introduced by other optimization passes.
  
!      Enabled by default at '-O1' and higher.
  
!      The default is '-fbranch-count-reg'.
  
! '-fno-function-cse'
       Do not put function addresses in registers; make each instruction
       that calls a constant function contain the function's address
       explicitly.
*************** optimizations to be performed is desired
*** 6084,6244 ****
       that alter the assembler output may be confused by the
       optimizations performed when this option is not used.
  
!      The default is `-ffunction-cse'
  
! `-fno-zero-initialized-in-bss'
!      If the target supports a BSS section, GCC by default puts
!      variables that are initialized to zero into BSS.  This can save
!      space in the resulting code.
  
       This option turns off this behavior because some programs
       explicitly rely on variables going to the data section--e.g., so
       that the resulting executable can find the beginning of that
       section and/or make assumptions based on that.
  
!      The default is `-fzero-initialized-in-bss'.
  
! `-fthread-jumps'
       Perform optimizations that check to see if a jump branches to a
       location where another comparison subsumed by the first is found.
       If so, the first branch is redirected to either the destination of
!      the second branch or a point immediately following it, depending
!      on whether the condition is known to be true or false.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fsplit-wide-types'
!      When using a type that occupies multiple registers, such as `long
       long' on a 32-bit system, split the registers apart and allocate
       them independently.  This normally generates better code for those
       types, but may make debugging more difficult.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fcse-follow-jumps'
       In common subexpression elimination (CSE), scan through jump
       instructions when the target of the jump is not reached by any
!      other path.  For example, when CSE encounters an `if' statement
!      with an `else' clause, CSE follows the jump when the condition
       tested is false.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fcse-skip-blocks'
!      This is similar to `-fcse-follow-jumps', but causes CSE to follow
       jumps that conditionally skip over blocks.  When CSE encounters a
!      simple `if' statement with no else clause, `-fcse-skip-blocks'
!      causes CSE to follow the jump around the body of the `if'.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-frerun-cse-after-loop'
       Re-run common subexpression elimination after loop optimizations
       are performed.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fgcse'
       Perform a global common subexpression elimination pass.  This pass
       also performs global constant and copy propagation.
  
       _Note:_ When compiling a program using computed gotos, a GCC
       extension, you may get better run-time performance if you disable
       the global common subexpression elimination pass by adding
!      `-fno-gcse' to the command line.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fgcse-lm'
!      When `-fgcse-lm' is enabled, global common subexpression
       elimination attempts to move loads that are only killed by stores
       into themselves.  This allows a loop containing a load/store
!      sequence to be changed to a load outside the loop, and a
!      copy/store within the loop.
  
!      Enabled by default when `-fgcse' is enabled.
  
! `-fgcse-sm'
!      When `-fgcse-sm' is enabled, a store motion pass is run after
       global common subexpression elimination.  This pass attempts to
       move stores out of loops.  When used in conjunction with
!      `-fgcse-lm', loops containing a load/store sequence can be changed
       to a load before the loop and a store after the loop.
  
       Not enabled at any optimization level.
  
! `-fgcse-las'
!      When `-fgcse-las' is enabled, the global common subexpression
       elimination pass eliminates redundant loads that come after stores
       to the same memory location (both partial and full redundancies).
  
       Not enabled at any optimization level.
  
! `-fgcse-after-reload'
!      When `-fgcse-after-reload' is enabled, a redundant load elimination
       pass is performed after reload.  The purpose of this pass is to
       clean up redundant spilling.
  
! `-faggressive-loop-optimizations'
       This option tells the loop optimizer to use language constraints to
!      derive bounds for the number of iterations of a loop.  This
!      assumes that loop code does not invoke undefined behavior by for
!      example causing signed integer overflows or out-of-bound array
!      accesses.  The bounds for the number of iterations of a loop are
!      used to guide loop unrolling and peeling and loop exit test
!      optimizations.  This option is enabled by default.
  
! `-funsafe-loop-optimizations'
!      This option tells the loop optimizer to assume that loop indices
!      do not overflow, and that loops with nontrivial exit condition are
!      not infinite.  This enables a wider range of loop optimizations
!      even if the loop optimizer itself cannot prove that these
!      assumptions are valid.  If you use `-Wunsafe-loop-optimizations',
!      the compiler warns you if it finds this kind of loop.
  
! `-funconstrained-commons'
       This option tells the compiler that variables declared in common
!      blocks (e.g. Fortran) may later be overridden with longer trailing
!      arrays. This prevents certain optimizations that depend on knowing
       the array bounds.
  
! `-fcrossjumping'
       Perform cross-jumping transformation.  This transformation unifies
!      equivalent code and saves code size.  The resulting code may or
!      may not perform better than without cross-jumping.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fauto-inc-dec'
       Combine increments or decrements of addresses with memory accesses.
       This pass is always skipped on architectures that do not have
!      instructions to support this.  Enabled by default at `-O' and
       higher on architectures that support this.
  
! `-fdce'
       Perform dead code elimination (DCE) on RTL.  Enabled by default at
!      `-O' and higher.
  
! `-fdse'
!      Perform dead store elimination (DSE) on RTL.  Enabled by default
!      at `-O' and higher.
  
! `-fif-conversion'
       Attempt to transform conditional jumps into branch-less
!      equivalents.  This includes use of conditional moves, min, max,
!      set flags and abs instructions, and some tricks doable by standard
!      arithmetics.  The use of conditional execution on chips where it
!      is available is controlled by `-fif-conversion2'.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fif-conversion2'
       Use conditional execution (where available) to transform
       conditional jumps into branch-less equivalents.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fdeclone-ctor-dtor'
       The C++ ABI requires multiple entry points for constructors and
       destructors: one for a base subobject, one for a complete object,
       and one for a virtual destructor that calls operator delete
--- 6045,6205 ----
       that alter the assembler output may be confused by the
       optimizations performed when this option is not used.
  
!      The default is '-ffunction-cse'
  
! '-fno-zero-initialized-in-bss'
!      If the target supports a BSS section, GCC by default puts variables
!      that are initialized to zero into BSS.  This can save space in the
!      resulting code.
  
       This option turns off this behavior because some programs
       explicitly rely on variables going to the data section--e.g., so
       that the resulting executable can find the beginning of that
       section and/or make assumptions based on that.
  
!      The default is '-fzero-initialized-in-bss'.
  
! '-fthread-jumps'
       Perform optimizations that check to see if a jump branches to a
       location where another comparison subsumed by the first is found.
       If so, the first branch is redirected to either the destination of
!      the second branch or a point immediately following it, depending on
!      whether the condition is known to be true or false.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fsplit-wide-types'
!      When using a type that occupies multiple registers, such as 'long
       long' on a 32-bit system, split the registers apart and allocate
       them independently.  This normally generates better code for those
       types, but may make debugging more difficult.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fcse-follow-jumps'
       In common subexpression elimination (CSE), scan through jump
       instructions when the target of the jump is not reached by any
!      other path.  For example, when CSE encounters an 'if' statement
!      with an 'else' clause, CSE follows the jump when the condition
       tested is false.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fcse-skip-blocks'
!      This is similar to '-fcse-follow-jumps', but causes CSE to follow
       jumps that conditionally skip over blocks.  When CSE encounters a
!      simple 'if' statement with no else clause, '-fcse-skip-blocks'
!      causes CSE to follow the jump around the body of the 'if'.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-frerun-cse-after-loop'
       Re-run common subexpression elimination after loop optimizations
       are performed.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fgcse'
       Perform a global common subexpression elimination pass.  This pass
       also performs global constant and copy propagation.
  
       _Note:_ When compiling a program using computed gotos, a GCC
       extension, you may get better run-time performance if you disable
       the global common subexpression elimination pass by adding
!      '-fno-gcse' to the command line.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fgcse-lm'
!      When '-fgcse-lm' is enabled, global common subexpression
       elimination attempts to move loads that are only killed by stores
       into themselves.  This allows a loop containing a load/store
!      sequence to be changed to a load outside the loop, and a copy/store
!      within the loop.
  
!      Enabled by default when '-fgcse' is enabled.
  
! '-fgcse-sm'
!      When '-fgcse-sm' is enabled, a store motion pass is run after
       global common subexpression elimination.  This pass attempts to
       move stores out of loops.  When used in conjunction with
!      '-fgcse-lm', loops containing a load/store sequence can be changed
       to a load before the loop and a store after the loop.
  
       Not enabled at any optimization level.
  
! '-fgcse-las'
!      When '-fgcse-las' is enabled, the global common subexpression
       elimination pass eliminates redundant loads that come after stores
       to the same memory location (both partial and full redundancies).
  
       Not enabled at any optimization level.
  
! '-fgcse-after-reload'
!      When '-fgcse-after-reload' is enabled, a redundant load elimination
       pass is performed after reload.  The purpose of this pass is to
       clean up redundant spilling.
  
! '-faggressive-loop-optimizations'
       This option tells the loop optimizer to use language constraints to
!      derive bounds for the number of iterations of a loop.  This assumes
!      that loop code does not invoke undefined behavior by for example
!      causing signed integer overflows or out-of-bound array accesses.
!      The bounds for the number of iterations of a loop are used to guide
!      loop unrolling and peeling and loop exit test optimizations.  This
!      option is enabled by default.
  
! '-funsafe-loop-optimizations'
!      This option tells the loop optimizer to assume that loop indices do
!      not overflow, and that loops with nontrivial exit condition are not
!      infinite.  This enables a wider range of loop optimizations even if
!      the loop optimizer itself cannot prove that these assumptions are
!      valid.  If you use '-Wunsafe-loop-optimizations', the compiler
!      warns you if it finds this kind of loop.
  
! '-funconstrained-commons'
       This option tells the compiler that variables declared in common
!      blocks (e.g.  Fortran) may later be overridden with longer trailing
!      arrays.  This prevents certain optimizations that depend on knowing
       the array bounds.
  
! '-fcrossjumping'
       Perform cross-jumping transformation.  This transformation unifies
!      equivalent code and saves code size.  The resulting code may or may
!      not perform better than without cross-jumping.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fauto-inc-dec'
       Combine increments or decrements of addresses with memory accesses.
       This pass is always skipped on architectures that do not have
!      instructions to support this.  Enabled by default at '-O' and
       higher on architectures that support this.
  
! '-fdce'
       Perform dead code elimination (DCE) on RTL.  Enabled by default at
!      '-O' and higher.
  
! '-fdse'
!      Perform dead store elimination (DSE) on RTL.  Enabled by default at
!      '-O' and higher.
  
! '-fif-conversion'
       Attempt to transform conditional jumps into branch-less
!      equivalents.  This includes use of conditional moves, min, max, set
!      flags and abs instructions, and some tricks doable by standard
!      arithmetics.  The use of conditional execution on chips where it is
!      available is controlled by '-fif-conversion2'.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fif-conversion2'
       Use conditional execution (where available) to transform
       conditional jumps into branch-less equivalents.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fdeclone-ctor-dtor'
       The C++ ABI requires multiple entry points for constructors and
       destructors: one for a base subobject, one for a complete object,
       and one for a virtual destructor that calls operator delete
*************** optimizations to be performed is desired
*** 6247,6255 ****
       function.  With this option, the base and complete variants are
       changed to be thunks that call a common implementation.
  
!      Enabled by `-Os'.
  
! `-fdelete-null-pointer-checks'
       Assume that programs cannot safely dereference null pointers, and
       that no code or data element resides at address zero.  This option
       enables simple constant folding optimizations at all optimization
--- 6208,6216 ----
       function.  With this option, the base and complete variants are
       changed to be thunks that call a common implementation.
  
!      Enabled by '-Os'.
  
! '-fdelete-null-pointer-checks'
       Assume that programs cannot safely dereference null pointers, and
       that no code or data element resides at address zero.  This option
       enables simple constant folding optimizations at all optimization
*************** optimizations to be performed is desired
*** 6260,6690 ****
       checked after it has already been dereferenced, it cannot be null.
  
       Note however that in some environments this assumption is not true.
!      Use `-fno-delete-null-pointer-checks' to disable this optimization
       for programs that depend on that behavior.
  
!      This option is enabled by default on most targets.  On Nios II
!      ELF, it defaults to off.  On AVR and CR16, this option is
!      completely disabled.
  
       Passes that use the dataflow information are enabled independently
       at different optimization levels.
  
! `-fdevirtualize'
       Attempt to convert calls to virtual functions to direct calls.
       This is done both within a procedure and interprocedurally as part
!      of indirect inlining (`-findirect-inlining') and interprocedural
!      constant propagation (`-fipa-cp').  Enabled at levels `-O2',
!      `-O3', `-Os'.
  
! `-fdevirtualize-speculatively'
!      Attempt to convert calls to virtual functions to speculative
!      direct calls.  Based on the analysis of the type inheritance
!      graph, determine for a given call the set of likely targets. If
!      the set is small, preferably of size 1, change the call into a
!      conditional deciding between direct and indirect calls.  The
!      speculative calls enable more optimizations, such as inlining.
!      When they seem useless after further optimization, they are
!      converted back into original form.
  
! `-fdevirtualize-at-ltrans'
       Stream extra information needed for aggressive devirtualization
       when running the link-time optimizer in local transformation mode.
       This option enables more devirtualization but significantly
!      increases the size of streamed data. For this reason it is
       disabled by default.
  
! `-fexpensive-optimizations'
       Perform a number of minor optimizations that are relatively
       expensive.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-free'
       Attempt to remove redundant extension instructions.  This is
       especially helpful for the x86-64 architecture, which implicitly
       zero-extends in 64-bit registers after writing to their lower
       32-bit half.
  
!      Enabled for Alpha, AArch64 and x86 at levels `-O2', `-O3', `-Os'.
  
! `-fno-lifetime-dse'
       In C++ the value of an object is only affected by changes within
       its lifetime: when the constructor begins, the object has an
       indeterminate value, and any changes during the lifetime of the
       object are dead when the object is destroyed.  Normally dead store
!      elimination will take advantage of this; if your code relies on
!      the value of the object storage persisting beyond the lifetime of
!      the object, you can use this flag to disable this optimization.
!      To preserve stores before the constructor starts (e.g. because
!      your operator new clears the object storage) but still treat the
!      object as dead after the destructor you, can use
!      `-flifetime-dse=1'.  The default behavior can be explicitly
!      selected with `-flifetime-dse=2'.  `-flifetime-dse=0' is
!      equivalent to `-fno-lifetime-dse'.
  
! `-flive-range-shrinkage'
       Attempt to decrease register pressure through register live range
       shrinkage.  This is helpful for fast processors with small or
       moderate size register sets.
  
! `-fira-algorithm=ALGORITHM'
       Use the specified coloring algorithm for the integrated register
!      allocator.  The ALGORITHM argument can be `priority', which
!      specifies Chow's priority coloring, or `CB', which specifies
       Chaitin-Briggs coloring.  Chaitin-Briggs coloring is not
       implemented for all architectures, but for those targets that do
       support it, it is the default because it generates better code.
  
! `-fira-region=REGION'
       Use specified regions for the integrated register allocator.  The
       REGION argument should be one of the following:
  
!     `all'
            Use all loops as register allocation regions.  This can give
            the best results for machines with a small and/or irregular
            register set.
  
!     `mixed'
!           Use all loops except for loops with small register pressure
!           as the regions.  This value usually gives the best results in
            most cases and for most architectures, and is enabled by
!           default when compiling with optimization for speed (`-O',
!           `-O2', ...).
  
!     `one'
            Use all functions as a single region.  This typically results
!           in the smallest code size, and is enabled by default for
!           `-Os' or `-O0'.
! 
  
! `-fira-hoist-pressure'
       Use IRA to evaluate register pressure in the code hoisting pass for
       decisions to hoist expressions.  This option usually results in
       smaller code, but it can slow the compiler down.
  
!      This option is enabled at level `-Os' for all targets.
  
! `-fira-loop-pressure'
       Use IRA to evaluate register pressure in loops for decisions to
!      move loop invariants.  This option usually results in generation
!      of faster and smaller code on machines with large register files
!      (>= 32 registers), but it can slow the compiler down.
  
!      This option is enabled at level `-O3' for some targets.
  
! `-fno-ira-share-save-slots'
       Disable sharing of stack slots used for saving call-used hard
       registers living through a call.  Each hard register gets a
       separate stack slot, and as a result function stack frames are
       larger.
  
! `-fno-ira-share-spill-slots'
       Disable sharing of stack slots allocated for pseudo-registers.
       Each pseudo-register that does not get a hard register gets a
       separate stack slot, and as a result function stack frames are
       larger.
  
! `-flra-remat'
!      Enable CFG-sensitive rematerialization in LRA.  Instead of loading
       values of spilled pseudos, LRA tries to rematerialize (recalculate)
       values if it is profitable.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fdelayed-branch'
       If supported for the target machine, attempt to reorder
       instructions to exploit instruction slots available after delayed
       branch instructions.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fschedule-insns'
       If supported for the target machine, attempt to reorder
       instructions to eliminate execution stalls due to required data
       being unavailable.  This helps machines that have slow floating
!      point or memory load instructions by allowing other instructions
!      to be issued until the result of the load or floating-point
       instruction is required.
  
!      Enabled at levels `-O2', `-O3'.
  
! `-fschedule-insns2'
!      Similar to `-fschedule-insns', but requests an additional pass of
       instruction scheduling after register allocation has been done.
       This is especially useful on machines with a relatively small
       number of registers and where memory load instructions take more
       than one cycle.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fno-sched-interblock'
       Don't schedule instructions across basic blocks.  This is normally
       enabled by default when scheduling before register allocation, i.e.
!      with `-fschedule-insns' or at `-O2' or higher.
  
! `-fno-sched-spec'
       Don't allow speculative motion of non-load instructions.  This is
       normally enabled by default when scheduling before register
!      allocation, i.e.  with `-fschedule-insns' or at `-O2' or higher.
  
! `-fsched-pressure'
       Enable register pressure sensitive insn scheduling before register
       allocation.  This only makes sense when scheduling before register
!      allocation is enabled, i.e. with `-fschedule-insns' or at `-O2' or
       higher.  Usage of this option can improve the generated code and
       decrease its size by preventing register pressure increase above
       the number of available hard registers and subsequent spills in
       register allocation.
  
! `-fsched-spec-load'
       Allow speculative motion of some load instructions.  This only
       makes sense when scheduling before register allocation, i.e. with
!      `-fschedule-insns' or at `-O2' or higher.
  
! `-fsched-spec-load-dangerous'
       Allow speculative motion of more load instructions.  This only
       makes sense when scheduling before register allocation, i.e. with
!      `-fschedule-insns' or at `-O2' or higher.
  
! `-fsched-stalled-insns'
! `-fsched-stalled-insns=N'
       Define how many insns (if any) can be moved prematurely from the
       queue of stalled insns into the ready list during the second
!      scheduling pass.  `-fno-sched-stalled-insns' means that no insns
!      are moved prematurely, `-fsched-stalled-insns=0' means there is no
       limit on how many queued insns can be moved prematurely.
!      `-fsched-stalled-insns' without a value is equivalent to
!      `-fsched-stalled-insns=1'.
  
! `-fsched-stalled-insns-dep'
! `-fsched-stalled-insns-dep=N'
       Define how many insn groups (cycles) are examined for a dependency
       on a stalled insn that is a candidate for premature removal from
       the queue of stalled insns.  This has an effect only during the
!      second scheduling pass, and only if `-fsched-stalled-insns' is
!      used.  `-fno-sched-stalled-insns-dep' is equivalent to
!      `-fsched-stalled-insns-dep=0'.  `-fsched-stalled-insns-dep'
!      without a value is equivalent to `-fsched-stalled-insns-dep=1'.
  
! `-fsched2-use-superblocks'
       When scheduling after register allocation, use superblock
       scheduling.  This allows motion across basic block boundaries,
!      resulting in faster schedules.  This option is experimental, as
!      not all machine descriptions used by GCC model the CPU closely
!      enough to avoid unreliable results from the algorithm.
  
       This only makes sense when scheduling after register allocation,
!      i.e. with `-fschedule-insns2' or at `-O2' or higher.
  
! `-fsched-group-heuristic'
       Enable the group heuristic in the scheduler.  This heuristic favors
       the instruction that belongs to a schedule group.  This is enabled
!      by default when scheduling is enabled, i.e. with `-fschedule-insns'
!      or `-fschedule-insns2' or at `-O2' or higher.
  
! `-fsched-critical-path-heuristic'
       Enable the critical-path heuristic in the scheduler.  This
       heuristic favors instructions on the critical path.  This is
       enabled by default when scheduling is enabled, i.e. with
!      `-fschedule-insns' or `-fschedule-insns2' or at `-O2' or higher.
  
! `-fsched-spec-insn-heuristic'
       Enable the speculative instruction heuristic in the scheduler.
       This heuristic favors speculative instructions with greater
!      dependency weakness.  This is enabled by default when scheduling
!      is enabled, i.e.  with `-fschedule-insns' or `-fschedule-insns2'
!      or at `-O2' or higher.
  
! `-fsched-rank-heuristic'
       Enable the rank heuristic in the scheduler.  This heuristic favors
       the instruction belonging to a basic block with greater size or
       frequency.  This is enabled by default when scheduling is enabled,
!      i.e.  with `-fschedule-insns' or `-fschedule-insns2' or at `-O2'
!      or higher.
  
! `-fsched-last-insn-heuristic'
       Enable the last-instruction heuristic in the scheduler.  This
!      heuristic favors the instruction that is less dependent on the
!      last instruction scheduled.  This is enabled by default when
!      scheduling is enabled, i.e. with `-fschedule-insns' or
!      `-fschedule-insns2' or at `-O2' or higher.
  
! `-fsched-dep-count-heuristic'
       Enable the dependent-count heuristic in the scheduler.  This
       heuristic favors the instruction that has more instructions
       depending on it.  This is enabled by default when scheduling is
!      enabled, i.e.  with `-fschedule-insns' or `-fschedule-insns2' or
!      at `-O2' or higher.
  
! `-freschedule-modulo-scheduled-loops'
!      Modulo scheduling is performed before traditional scheduling.  If
!      a loop is modulo scheduled, later scheduling passes may change its
       schedule.  Use this option to control that behavior.
  
! `-fselective-scheduling'
       Schedule instructions using selective scheduling algorithm.
       Selective scheduling runs instead of the first scheduler pass.
  
! `-fselective-scheduling2'
       Schedule instructions using selective scheduling algorithm.
       Selective scheduling runs instead of the second scheduler pass.
  
! `-fsel-sched-pipelining'
       Enable software pipelining of innermost loops during selective
       scheduling.  This option has no effect unless one of
!      `-fselective-scheduling' or `-fselective-scheduling2' is turned on.
  
! `-fsel-sched-pipelining-outer-loops'
       When pipelining loops during selective scheduling, also pipeline
       outer loops.  This option has no effect unless
!      `-fsel-sched-pipelining' is turned on.
  
! `-fsemantic-interposition'
       Some object formats, like ELF, allow interposing of symbols by the
!      dynamic linker.  This means that for symbols exported from the
!      DSO, the compiler cannot perform interprocedural propagation,
!      inlining and other optimizations in anticipation that the function
!      or variable in question may change. While this feature is useful,
!      for example, to rewrite memory allocation functions by a debugging
!      implementation, it is expensive in the terms of code quality.
!      With `-fno-semantic-interposition' the compiler assumes that if
       interposition happens for functions the overwriting function will
!      have precisely the same semantics (and side effects).  Similarly
!      if interposition happens for variables, the constructor of the
!      variable will be the same. The flag has no effect for functions
       explicitly declared inline (where it is never allowed for
       interposition to change semantics) and for symbols explicitly
       declared weak.
  
! `-fshrink-wrap'
!      Emit function prologues only before parts of the function that
!      need it, rather than at the top of the function.  This flag is
!      enabled by default at `-O' and higher.
  
! `-fcaller-saves'
       Enable allocation of values to registers that are clobbered by
       function calls, by emitting extra instructions to save and restore
!      the registers around such calls.  Such allocation is done only
!      when it seems to result in better code.
  
       This option is always enabled by default on certain machines,
       usually those which have no call-preserved registers to use
       instead.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fcombine-stack-adjustments'
       Tracks stack adjustments (pushes and pops) and stack memory
       references and then tries to find ways to combine them.
  
!      Enabled by default at `-O1' and higher.
  
! `-fipa-ra'
!      Use caller save registers for allocation if those registers are
!      not used by any called function.  In that case it is not necessary
!      to save and restore them around calls.  This is only possible if
       called functions are part of same compilation unit as current
       function and they are compiled before it.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fconserve-stack'
       Attempt to minimize stack usage.  The compiler attempts to use less
       stack space, even if that makes the program slower.  This option
!      implies setting the `large-stack-frame' parameter to 100 and the
!      `large-stack-frame-growth' parameter to 400.
  
! `-ftree-reassoc'
!      Perform reassociation on trees.  This flag is enabled by default
!      at `-O' and higher.
  
! `-ftree-pre'
       Perform partial redundancy elimination (PRE) on trees.  This flag
!      is enabled by default at `-O2' and `-O3'.
  
! `-ftree-partial-pre'
       Make partial redundancy elimination (PRE) more aggressive.  This
!      flag is enabled by default at `-O3'.
  
! `-ftree-forwprop'
       Perform forward propagation on trees.  This flag is enabled by
!      default at `-O' and higher.
  
! `-ftree-fre'
       Perform full redundancy elimination (FRE) on trees.  The difference
!      between FRE and PRE is that FRE only considers expressions that
!      are computed on all paths leading to the redundant computation.
!      This analysis is faster than PRE, though it exposes fewer
!      redundancies.  This flag is enabled by default at `-O' and higher.
  
! `-ftree-phiprop'
       Perform hoisting of loads from conditional pointers on trees.  This
!      pass is enabled by default at `-O' and higher.
  
! `-fhoist-adjacent-loads'
       Speculatively hoist loads from both branches of an if-then-else if
!      the loads are from adjacent locations in the same structure and
!      the target architecture has a conditional move instruction.  This
!      flag is enabled by default at `-O2' and higher.
  
! `-ftree-copy-prop'
       Perform copy propagation on trees.  This pass eliminates
       unnecessary copy operations.  This flag is enabled by default at
!      `-O' and higher.
  
! `-fipa-pure-const'
       Discover which functions are pure or constant.  Enabled by default
!      at `-O' and higher.
  
! `-fipa-reference'
       Discover which static variables do not escape the compilation unit.
!      Enabled by default at `-O' and higher.
  
! `-fipa-pta'
       Perform interprocedural pointer analysis and interprocedural
       modification and reference analysis.  This option can cause
!      excessive memory and compile-time usage on large compilation
!      units.  It is not enabled by default at any optimization level.
  
! `-fipa-profile'
       Perform interprocedural profile propagation.  The functions called
!      only from cold functions are marked as cold. Also functions
!      executed once (such as `cold', `noreturn', static constructors or
!      destructors) are identified. Cold functions and loop less parts of
       functions executed once are then optimized for size.  Enabled by
!      default at `-O' and higher.
  
! `-fipa-cp'
       Perform interprocedural constant propagation.  This optimization
       analyzes the program to determine when values passed to functions
       are constants and then optimizes accordingly.  This optimization
       can substantially increase performance if the application has
       constants passed to functions.  This flag is enabled by default at
!      `-O2', `-Os' and `-O3'.
  
! `-fipa-cp-clone'
       Perform function cloning to make interprocedural constant
       propagation stronger.  When enabled, interprocedural constant
       propagation performs function cloning when externally visible
       function can be called with constant arguments.  Because this
       optimization can create multiple copies of functions, it may
!      significantly increase code size (see `--param
       ipcp-unit-growth=VALUE').  This flag is enabled by default at
!      `-O3'.
  
! `-fipa-cp-alignment'
       When enabled, this optimization propagates alignment of function
       parameters to support better vectorization and string operations.
  
!      This flag is enabled by default at `-O2' and `-Os'.  It requires
!      that `-fipa-cp' is enabled.
  
! `-fipa-icf'
       Perform Identical Code Folding for functions and read-only
       variables.  The optimization reduces code size and may disturb
       unwind stacks by replacing a function by equivalent one with a
!      different name. The optimization works more effectively with link
       time optimization enabled.
  
       Nevertheless the behavior is similar to Gold Linker ICF
--- 6221,6650 ----
       checked after it has already been dereferenced, it cannot be null.
  
       Note however that in some environments this assumption is not true.
!      Use '-fno-delete-null-pointer-checks' to disable this optimization
       for programs that depend on that behavior.
  
!      This option is enabled by default on most targets.  On Nios II ELF,
!      it defaults to off.  On AVR and CR16, this option is completely
!      disabled.
  
       Passes that use the dataflow information are enabled independently
       at different optimization levels.
  
! '-fdevirtualize'
       Attempt to convert calls to virtual functions to direct calls.
       This is done both within a procedure and interprocedurally as part
!      of indirect inlining ('-findirect-inlining') and interprocedural
!      constant propagation ('-fipa-cp').  Enabled at levels '-O2', '-O3',
!      '-Os'.
  
! '-fdevirtualize-speculatively'
!      Attempt to convert calls to virtual functions to speculative direct
!      calls.  Based on the analysis of the type inheritance graph,
!      determine for a given call the set of likely targets.  If the set
!      is small, preferably of size 1, change the call into a conditional
!      deciding between direct and indirect calls.  The speculative calls
!      enable more optimizations, such as inlining.  When they seem
!      useless after further optimization, they are converted back into
!      original form.
  
! '-fdevirtualize-at-ltrans'
       Stream extra information needed for aggressive devirtualization
       when running the link-time optimizer in local transformation mode.
       This option enables more devirtualization but significantly
!      increases the size of streamed data.  For this reason it is
       disabled by default.
  
! '-fexpensive-optimizations'
       Perform a number of minor optimizations that are relatively
       expensive.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-free'
       Attempt to remove redundant extension instructions.  This is
       especially helpful for the x86-64 architecture, which implicitly
       zero-extends in 64-bit registers after writing to their lower
       32-bit half.
  
!      Enabled for Alpha, AArch64 and x86 at levels '-O2', '-O3', '-Os'.
  
! '-fno-lifetime-dse'
       In C++ the value of an object is only affected by changes within
       its lifetime: when the constructor begins, the object has an
       indeterminate value, and any changes during the lifetime of the
       object are dead when the object is destroyed.  Normally dead store
!      elimination will take advantage of this; if your code relies on the
!      value of the object storage persisting beyond the lifetime of the
!      object, you can use this flag to disable this optimization.  To
!      preserve stores before the constructor starts (e.g.  because your
!      operator new clears the object storage) but still treat the object
!      as dead after the destructor you, can use '-flifetime-dse=1'.  The
!      default behavior can be explicitly selected with
!      '-flifetime-dse=2'.  '-flifetime-dse=0' is equivalent to
!      '-fno-lifetime-dse'.
  
! '-flive-range-shrinkage'
       Attempt to decrease register pressure through register live range
       shrinkage.  This is helpful for fast processors with small or
       moderate size register sets.
  
! '-fira-algorithm=ALGORITHM'
       Use the specified coloring algorithm for the integrated register
!      allocator.  The ALGORITHM argument can be 'priority', which
!      specifies Chow's priority coloring, or 'CB', which specifies
       Chaitin-Briggs coloring.  Chaitin-Briggs coloring is not
       implemented for all architectures, but for those targets that do
       support it, it is the default because it generates better code.
  
! '-fira-region=REGION'
       Use specified regions for the integrated register allocator.  The
       REGION argument should be one of the following:
  
!      'all'
            Use all loops as register allocation regions.  This can give
            the best results for machines with a small and/or irregular
            register set.
  
!      'mixed'
!           Use all loops except for loops with small register pressure as
!           the regions.  This value usually gives the best results in
            most cases and for most architectures, and is enabled by
!           default when compiling with optimization for speed ('-O',
!           '-O2', ...).
  
!      'one'
            Use all functions as a single region.  This typically results
!           in the smallest code size, and is enabled by default for '-Os'
!           or '-O0'.
  
! '-fira-hoist-pressure'
       Use IRA to evaluate register pressure in the code hoisting pass for
       decisions to hoist expressions.  This option usually results in
       smaller code, but it can slow the compiler down.
  
!      This option is enabled at level '-Os' for all targets.
  
! '-fira-loop-pressure'
       Use IRA to evaluate register pressure in loops for decisions to
!      move loop invariants.  This option usually results in generation of
!      faster and smaller code on machines with large register files (>=
!      32 registers), but it can slow the compiler down.
  
!      This option is enabled at level '-O3' for some targets.
  
! '-fno-ira-share-save-slots'
       Disable sharing of stack slots used for saving call-used hard
       registers living through a call.  Each hard register gets a
       separate stack slot, and as a result function stack frames are
       larger.
  
! '-fno-ira-share-spill-slots'
       Disable sharing of stack slots allocated for pseudo-registers.
       Each pseudo-register that does not get a hard register gets a
       separate stack slot, and as a result function stack frames are
       larger.
  
! '-flra-remat'
!      Enable CFG-sensitive rematerialization in LRA. Instead of loading
       values of spilled pseudos, LRA tries to rematerialize (recalculate)
       values if it is profitable.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fdelayed-branch'
       If supported for the target machine, attempt to reorder
       instructions to exploit instruction slots available after delayed
       branch instructions.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fschedule-insns'
       If supported for the target machine, attempt to reorder
       instructions to eliminate execution stalls due to required data
       being unavailable.  This helps machines that have slow floating
!      point or memory load instructions by allowing other instructions to
!      be issued until the result of the load or floating-point
       instruction is required.
  
!      Enabled at levels '-O2', '-O3'.
  
! '-fschedule-insns2'
!      Similar to '-fschedule-insns', but requests an additional pass of
       instruction scheduling after register allocation has been done.
       This is especially useful on machines with a relatively small
       number of registers and where memory load instructions take more
       than one cycle.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fno-sched-interblock'
       Don't schedule instructions across basic blocks.  This is normally
       enabled by default when scheduling before register allocation, i.e.
!      with '-fschedule-insns' or at '-O2' or higher.
  
! '-fno-sched-spec'
       Don't allow speculative motion of non-load instructions.  This is
       normally enabled by default when scheduling before register
!      allocation, i.e. with '-fschedule-insns' or at '-O2' or higher.
  
! '-fsched-pressure'
       Enable register pressure sensitive insn scheduling before register
       allocation.  This only makes sense when scheduling before register
!      allocation is enabled, i.e. with '-fschedule-insns' or at '-O2' or
       higher.  Usage of this option can improve the generated code and
       decrease its size by preventing register pressure increase above
       the number of available hard registers and subsequent spills in
       register allocation.
  
! '-fsched-spec-load'
       Allow speculative motion of some load instructions.  This only
       makes sense when scheduling before register allocation, i.e. with
!      '-fschedule-insns' or at '-O2' or higher.
  
! '-fsched-spec-load-dangerous'
       Allow speculative motion of more load instructions.  This only
       makes sense when scheduling before register allocation, i.e. with
!      '-fschedule-insns' or at '-O2' or higher.
  
! '-fsched-stalled-insns'
! '-fsched-stalled-insns=N'
       Define how many insns (if any) can be moved prematurely from the
       queue of stalled insns into the ready list during the second
!      scheduling pass.  '-fno-sched-stalled-insns' means that no insns
!      are moved prematurely, '-fsched-stalled-insns=0' means there is no
       limit on how many queued insns can be moved prematurely.
!      '-fsched-stalled-insns' without a value is equivalent to
!      '-fsched-stalled-insns=1'.
  
! '-fsched-stalled-insns-dep'
! '-fsched-stalled-insns-dep=N'
       Define how many insn groups (cycles) are examined for a dependency
       on a stalled insn that is a candidate for premature removal from
       the queue of stalled insns.  This has an effect only during the
!      second scheduling pass, and only if '-fsched-stalled-insns' is
!      used.  '-fno-sched-stalled-insns-dep' is equivalent to
!      '-fsched-stalled-insns-dep=0'.  '-fsched-stalled-insns-dep' without
!      a value is equivalent to '-fsched-stalled-insns-dep=1'.
  
! '-fsched2-use-superblocks'
       When scheduling after register allocation, use superblock
       scheduling.  This allows motion across basic block boundaries,
!      resulting in faster schedules.  This option is experimental, as not
!      all machine descriptions used by GCC model the CPU closely enough
!      to avoid unreliable results from the algorithm.
  
       This only makes sense when scheduling after register allocation,
!      i.e. with '-fschedule-insns2' or at '-O2' or higher.
  
! '-fsched-group-heuristic'
       Enable the group heuristic in the scheduler.  This heuristic favors
       the instruction that belongs to a schedule group.  This is enabled
!      by default when scheduling is enabled, i.e. with '-fschedule-insns'
!      or '-fschedule-insns2' or at '-O2' or higher.
  
! '-fsched-critical-path-heuristic'
       Enable the critical-path heuristic in the scheduler.  This
       heuristic favors instructions on the critical path.  This is
       enabled by default when scheduling is enabled, i.e. with
!      '-fschedule-insns' or '-fschedule-insns2' or at '-O2' or higher.
  
! '-fsched-spec-insn-heuristic'
       Enable the speculative instruction heuristic in the scheduler.
       This heuristic favors speculative instructions with greater
!      dependency weakness.  This is enabled by default when scheduling is
!      enabled, i.e. with '-fschedule-insns' or '-fschedule-insns2' or at
!      '-O2' or higher.
  
! '-fsched-rank-heuristic'
       Enable the rank heuristic in the scheduler.  This heuristic favors
       the instruction belonging to a basic block with greater size or
       frequency.  This is enabled by default when scheduling is enabled,
!      i.e. with '-fschedule-insns' or '-fschedule-insns2' or at '-O2' or
!      higher.
  
! '-fsched-last-insn-heuristic'
       Enable the last-instruction heuristic in the scheduler.  This
!      heuristic favors the instruction that is less dependent on the last
!      instruction scheduled.  This is enabled by default when scheduling
!      is enabled, i.e. with '-fschedule-insns' or '-fschedule-insns2' or
!      at '-O2' or higher.
  
! '-fsched-dep-count-heuristic'
       Enable the dependent-count heuristic in the scheduler.  This
       heuristic favors the instruction that has more instructions
       depending on it.  This is enabled by default when scheduling is
!      enabled, i.e. with '-fschedule-insns' or '-fschedule-insns2' or at
!      '-O2' or higher.
  
! '-freschedule-modulo-scheduled-loops'
!      Modulo scheduling is performed before traditional scheduling.  If a
!      loop is modulo scheduled, later scheduling passes may change its
       schedule.  Use this option to control that behavior.
  
! '-fselective-scheduling'
       Schedule instructions using selective scheduling algorithm.
       Selective scheduling runs instead of the first scheduler pass.
  
! '-fselective-scheduling2'
       Schedule instructions using selective scheduling algorithm.
       Selective scheduling runs instead of the second scheduler pass.
  
! '-fsel-sched-pipelining'
       Enable software pipelining of innermost loops during selective
       scheduling.  This option has no effect unless one of
!      '-fselective-scheduling' or '-fselective-scheduling2' is turned on.
  
! '-fsel-sched-pipelining-outer-loops'
       When pipelining loops during selective scheduling, also pipeline
       outer loops.  This option has no effect unless
!      '-fsel-sched-pipelining' is turned on.
  
! '-fsemantic-interposition'
       Some object formats, like ELF, allow interposing of symbols by the
!      dynamic linker.  This means that for symbols exported from the DSO,
!      the compiler cannot perform interprocedural propagation, inlining
!      and other optimizations in anticipation that the function or
!      variable in question may change.  While this feature is useful, for
!      example, to rewrite memory allocation functions by a debugging
!      implementation, it is expensive in the terms of code quality.  With
!      '-fno-semantic-interposition' the compiler assumes that if
       interposition happens for functions the overwriting function will
!      have precisely the same semantics (and side effects).  Similarly if
!      interposition happens for variables, the constructor of the
!      variable will be the same.  The flag has no effect for functions
       explicitly declared inline (where it is never allowed for
       interposition to change semantics) and for symbols explicitly
       declared weak.
  
! '-fshrink-wrap'
!      Emit function prologues only before parts of the function that need
!      it, rather than at the top of the function.  This flag is enabled
!      by default at '-O' and higher.
  
! '-fcaller-saves'
       Enable allocation of values to registers that are clobbered by
       function calls, by emitting extra instructions to save and restore
!      the registers around such calls.  Such allocation is done only when
!      it seems to result in better code.
  
       This option is always enabled by default on certain machines,
       usually those which have no call-preserved registers to use
       instead.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fcombine-stack-adjustments'
       Tracks stack adjustments (pushes and pops) and stack memory
       references and then tries to find ways to combine them.
  
!      Enabled by default at '-O1' and higher.
  
! '-fipa-ra'
!      Use caller save registers for allocation if those registers are not
!      used by any called function.  In that case it is not necessary to
!      save and restore them around calls.  This is only possible if
       called functions are part of same compilation unit as current
       function and they are compiled before it.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fconserve-stack'
       Attempt to minimize stack usage.  The compiler attempts to use less
       stack space, even if that makes the program slower.  This option
!      implies setting the 'large-stack-frame' parameter to 100 and the
!      'large-stack-frame-growth' parameter to 400.
  
! '-ftree-reassoc'
!      Perform reassociation on trees.  This flag is enabled by default at
!      '-O' and higher.
  
! '-ftree-pre'
       Perform partial redundancy elimination (PRE) on trees.  This flag
!      is enabled by default at '-O2' and '-O3'.
  
! '-ftree-partial-pre'
       Make partial redundancy elimination (PRE) more aggressive.  This
!      flag is enabled by default at '-O3'.
  
! '-ftree-forwprop'
       Perform forward propagation on trees.  This flag is enabled by
!      default at '-O' and higher.
  
! '-ftree-fre'
       Perform full redundancy elimination (FRE) on trees.  The difference
!      between FRE and PRE is that FRE only considers expressions that are
!      computed on all paths leading to the redundant computation.  This
!      analysis is faster than PRE, though it exposes fewer redundancies.
!      This flag is enabled by default at '-O' and higher.
  
! '-ftree-phiprop'
       Perform hoisting of loads from conditional pointers on trees.  This
!      pass is enabled by default at '-O' and higher.
  
! '-fhoist-adjacent-loads'
       Speculatively hoist loads from both branches of an if-then-else if
!      the loads are from adjacent locations in the same structure and the
!      target architecture has a conditional move instruction.  This flag
!      is enabled by default at '-O2' and higher.
  
! '-ftree-copy-prop'
       Perform copy propagation on trees.  This pass eliminates
       unnecessary copy operations.  This flag is enabled by default at
!      '-O' and higher.
  
! '-fipa-pure-const'
       Discover which functions are pure or constant.  Enabled by default
!      at '-O' and higher.
  
! '-fipa-reference'
       Discover which static variables do not escape the compilation unit.
!      Enabled by default at '-O' and higher.
  
! '-fipa-pta'
       Perform interprocedural pointer analysis and interprocedural
       modification and reference analysis.  This option can cause
!      excessive memory and compile-time usage on large compilation units.
!      It is not enabled by default at any optimization level.
  
! '-fipa-profile'
       Perform interprocedural profile propagation.  The functions called
!      only from cold functions are marked as cold.  Also functions
!      executed once (such as 'cold', 'noreturn', static constructors or
!      destructors) are identified.  Cold functions and loop less parts of
       functions executed once are then optimized for size.  Enabled by
!      default at '-O' and higher.
  
! '-fipa-cp'
       Perform interprocedural constant propagation.  This optimization
       analyzes the program to determine when values passed to functions
       are constants and then optimizes accordingly.  This optimization
       can substantially increase performance if the application has
       constants passed to functions.  This flag is enabled by default at
!      '-O2', '-Os' and '-O3'.
  
! '-fipa-cp-clone'
       Perform function cloning to make interprocedural constant
       propagation stronger.  When enabled, interprocedural constant
       propagation performs function cloning when externally visible
       function can be called with constant arguments.  Because this
       optimization can create multiple copies of functions, it may
!      significantly increase code size (see '--param
       ipcp-unit-growth=VALUE').  This flag is enabled by default at
!      '-O3'.
  
! '-fipa-cp-alignment'
       When enabled, this optimization propagates alignment of function
       parameters to support better vectorization and string operations.
  
!      This flag is enabled by default at '-O2' and '-Os'.  It requires
!      that '-fipa-cp' is enabled.
  
! '-fipa-icf'
       Perform Identical Code Folding for functions and read-only
       variables.  The optimization reduces code size and may disturb
       unwind stacks by replacing a function by equivalent one with a
!      different name.  The optimization works more effectively with link
       time optimization enabled.
  
       Nevertheless the behavior is similar to Gold Linker ICF
*************** optimizations to be performed is desired
*** 6692,6836 ****
       optimizations are not same - there are equivalences that are found
       only by GCC and equivalences found only by Gold.
  
!      This flag is enabled by default at `-O2' and `-Os'.
  
! `-fisolate-erroneous-paths-dereference'
       Detect paths that trigger erroneous or undefined behavior due to
       dereferencing a null pointer.  Isolate those paths from the main
       control flow and turn the statement with erroneous or undefined
!      behavior into a trap.  This flag is enabled by default at `-O2'
!      and higher and depends on `-fdelete-null-pointer-checks' also
!      being enabled.
  
! `-fisolate-erroneous-paths-attribute'
!      Detect paths that trigger erroneous or undefined behavior due a
!      null value being used in a way forbidden by a `returns_nonnull' or
!      `nonnull' attribute.  Isolate those paths from the main control
       flow and turn the statement with erroneous or undefined behavior
       into a trap.  This is not currently enabled, but may be enabled by
!      `-O2' in the future.
  
! `-ftree-sink'
       Perform forward store motion on trees.  This flag is enabled by
!      default at `-O' and higher.
  
! `-ftree-bit-ccp'
       Perform sparse conditional bit constant propagation on trees and
       propagate pointer alignment information.  This pass only operates
!      on local scalar variables and is enabled by default at `-O' and
!      higher.  It requires that `-ftree-ccp' is enabled.
  
! `-ftree-ccp'
       Perform sparse conditional constant propagation (CCP) on trees.
!      This pass only operates on local scalar variables and is enabled
!      by default at `-O' and higher.
  
! `-fssa-backprop'
       Propagate information about uses of a value up the definition chain
       in order to simplify the definitions.  For example, this pass
       strips sign operations if the sign of a value never matters.  The
!      flag is enabled by default at `-O' and higher.
  
! `-fssa-phiopt'
       Perform pattern matching on SSA PHI nodes to optimize conditional
!      code.  This pass is enabled by default at `-O' and higher.
  
! `-ftree-switch-conversion'
       Perform conversion of simple initializations in a switch to
       initializations from a scalar array.  This flag is enabled by
!      default at `-O2' and higher.
  
! `-ftree-tail-merge'
       Look for identical code sequences.  When found, replace one with a
       jump to the other.  This optimization is known as tail merging or
!      cross jumping.  This flag is enabled by default at `-O2' and
       higher.  The compilation time in this pass can be limited using
!      `max-tail-merge-comparisons' parameter and
!      `max-tail-merge-iterations' parameter.
  
! `-ftree-dce'
!      Perform dead code elimination (DCE) on trees.  This flag is
!      enabled by default at `-O' and higher.
  
! `-ftree-builtin-call-dce'
       Perform conditional dead code elimination (DCE) for calls to
!      built-in functions that may set `errno' but are otherwise
!      side-effect free.  This flag is enabled by default at `-O2' and
!      higher if `-Os' is not also specified.
  
! `-ftree-dominator-opts'
       Perform a variety of simple scalar cleanups (constant/copy
       propagation, redundancy elimination, range propagation and
       expression simplification) based on a dominator tree traversal.
!      This also performs jump threading (to reduce jumps to jumps). This
!      flag is enabled by default at `-O' and higher.
  
! `-ftree-dse'
       Perform dead store elimination (DSE) on trees.  A dead store is a
       store into a memory location that is later overwritten by another
       store without any intervening loads.  In this case the earlier
!      store can be deleted.  This flag is enabled by default at `-O' and
       higher.
  
! `-ftree-ch'
       Perform loop header copying on trees.  This is beneficial since it
       increases effectiveness of code motion optimizations.  It also
!      saves one jump.  This flag is enabled by default at `-O' and
!      higher.  It is not enabled for `-Os', since it usually increases
       code size.
  
! `-ftree-loop-optimize'
       Perform loop optimizations on trees.  This flag is enabled by
!      default at `-O' and higher.
  
! `-ftree-loop-linear'
! `-floop-interchange'
! `-floop-strip-mine'
! `-floop-block'
! `-floop-unroll-and-jam'
!      Perform loop nest optimizations.  Same as `-floop-nest-optimize'.
       To use this code transformation, GCC has to be configured with
!      `--with-isl' to enable the Graphite loop transformation
       infrastructure.
  
! `-fgraphite-identity'
!      Enable the identity transformation for graphite.  For every SCoP
!      we generate the polyhedral representation and transform it back to
!      gimple.  Using `-fgraphite-identity' we can check the costs or
       benefits of the GIMPLE -> GRAPHITE -> GIMPLE transformation.  Some
!      minimal optimizations are also performed by the code generator
!      isl, like index splitting and dead code elimination in loops.
  
! `-floop-nest-optimize'
       Enable the isl based loop nest optimizer.  This is a generic loop
       nest optimizer based on the Pluto optimization algorithms.  It
       calculates a loop structure optimized for data-locality and
       parallelism.  This option is experimental.
  
! `-floop-parallelize-all'
       Use the Graphite data dependence analysis to identify loops that
       can be parallelized.  Parallelize all the loops that can be
       analyzed to not contain loop carried dependences without checking
       that it is profitable to parallelize the loops.
  
! `-ftree-coalesce-vars'
       While transforming the program out of the SSA representation,
       attempt to reduce copying by coalescing versions of different
!      user-defined variables, instead of just compiler temporaries.
!      This may severely limit the ability to debug an optimized program
!      compiled with `-fno-var-tracking-assignments'.  In the negated
       form, this flag prevents SSA coalescing of user variables.  This
       option is enabled by default if optimization is enabled, and it
       does very little otherwise.
  
! `-ftree-loop-if-convert'
       Attempt to transform conditional jumps in the innermost loops to
       branch-less equivalents.  The intent is to remove control-flow from
       the innermost loops in order to improve the ability of the
       vectorization pass to handle these loops.  This is enabled by
       default if vectorization is enabled.
  
! `-ftree-loop-if-convert-stores'
       Attempt to also if-convert conditional jumps containing memory
       writes.  This transformation can be unsafe for multi-threaded
       programs as it transforms conditional memory writes into
--- 6652,6796 ----
       optimizations are not same - there are equivalences that are found
       only by GCC and equivalences found only by Gold.
  
!      This flag is enabled by default at '-O2' and '-Os'.
  
! '-fisolate-erroneous-paths-dereference'
       Detect paths that trigger erroneous or undefined behavior due to
       dereferencing a null pointer.  Isolate those paths from the main
       control flow and turn the statement with erroneous or undefined
!      behavior into a trap.  This flag is enabled by default at '-O2' and
!      higher and depends on '-fdelete-null-pointer-checks' also being
!      enabled.
  
! '-fisolate-erroneous-paths-attribute'
!      Detect paths that trigger erroneous or undefined behavior due to a
!      null value being used in a way forbidden by a 'returns_nonnull' or
!      'nonnull' attribute.  Isolate those paths from the main control
       flow and turn the statement with erroneous or undefined behavior
       into a trap.  This is not currently enabled, but may be enabled by
!      '-O2' in the future.
  
! '-ftree-sink'
       Perform forward store motion on trees.  This flag is enabled by
!      default at '-O' and higher.
  
! '-ftree-bit-ccp'
       Perform sparse conditional bit constant propagation on trees and
       propagate pointer alignment information.  This pass only operates
!      on local scalar variables and is enabled by default at '-O' and
!      higher.  It requires that '-ftree-ccp' is enabled.
  
! '-ftree-ccp'
       Perform sparse conditional constant propagation (CCP) on trees.
!      This pass only operates on local scalar variables and is enabled by
!      default at '-O' and higher.
  
! '-fssa-backprop'
       Propagate information about uses of a value up the definition chain
       in order to simplify the definitions.  For example, this pass
       strips sign operations if the sign of a value never matters.  The
!      flag is enabled by default at '-O' and higher.
  
! '-fssa-phiopt'
       Perform pattern matching on SSA PHI nodes to optimize conditional
!      code.  This pass is enabled by default at '-O' and higher.
  
! '-ftree-switch-conversion'
       Perform conversion of simple initializations in a switch to
       initializations from a scalar array.  This flag is enabled by
!      default at '-O2' and higher.
  
! '-ftree-tail-merge'
       Look for identical code sequences.  When found, replace one with a
       jump to the other.  This optimization is known as tail merging or
!      cross jumping.  This flag is enabled by default at '-O2' and
       higher.  The compilation time in this pass can be limited using
!      'max-tail-merge-comparisons' parameter and
!      'max-tail-merge-iterations' parameter.
  
! '-ftree-dce'
!      Perform dead code elimination (DCE) on trees.  This flag is enabled
!      by default at '-O' and higher.
  
! '-ftree-builtin-call-dce'
       Perform conditional dead code elimination (DCE) for calls to
!      built-in functions that may set 'errno' but are otherwise
!      side-effect free.  This flag is enabled by default at '-O2' and
!      higher if '-Os' is not also specified.
  
! '-ftree-dominator-opts'
       Perform a variety of simple scalar cleanups (constant/copy
       propagation, redundancy elimination, range propagation and
       expression simplification) based on a dominator tree traversal.
!      This also performs jump threading (to reduce jumps to jumps).  This
!      flag is enabled by default at '-O' and higher.
  
! '-ftree-dse'
       Perform dead store elimination (DSE) on trees.  A dead store is a
       store into a memory location that is later overwritten by another
       store without any intervening loads.  In this case the earlier
!      store can be deleted.  This flag is enabled by default at '-O' and
       higher.
  
! '-ftree-ch'
       Perform loop header copying on trees.  This is beneficial since it
       increases effectiveness of code motion optimizations.  It also
!      saves one jump.  This flag is enabled by default at '-O' and
!      higher.  It is not enabled for '-Os', since it usually increases
       code size.
  
! '-ftree-loop-optimize'
       Perform loop optimizations on trees.  This flag is enabled by
!      default at '-O' and higher.
  
! '-ftree-loop-linear'
! '-floop-interchange'
! '-floop-strip-mine'
! '-floop-block'
! '-floop-unroll-and-jam'
!      Perform loop nest optimizations.  Same as '-floop-nest-optimize'.
       To use this code transformation, GCC has to be configured with
!      '--with-isl' to enable the Graphite loop transformation
       infrastructure.
  
! '-fgraphite-identity'
!      Enable the identity transformation for graphite.  For every SCoP we
!      generate the polyhedral representation and transform it back to
!      gimple.  Using '-fgraphite-identity' we can check the costs or
       benefits of the GIMPLE -> GRAPHITE -> GIMPLE transformation.  Some
!      minimal optimizations are also performed by the code generator isl,
!      like index splitting and dead code elimination in loops.
  
! '-floop-nest-optimize'
       Enable the isl based loop nest optimizer.  This is a generic loop
       nest optimizer based on the Pluto optimization algorithms.  It
       calculates a loop structure optimized for data-locality and
       parallelism.  This option is experimental.
  
! '-floop-parallelize-all'
       Use the Graphite data dependence analysis to identify loops that
       can be parallelized.  Parallelize all the loops that can be
       analyzed to not contain loop carried dependences without checking
       that it is profitable to parallelize the loops.
  
! '-ftree-coalesce-vars'
       While transforming the program out of the SSA representation,
       attempt to reduce copying by coalescing versions of different
!      user-defined variables, instead of just compiler temporaries.  This
!      may severely limit the ability to debug an optimized program
!      compiled with '-fno-var-tracking-assignments'.  In the negated
       form, this flag prevents SSA coalescing of user variables.  This
       option is enabled by default if optimization is enabled, and it
       does very little otherwise.
  
! '-ftree-loop-if-convert'
       Attempt to transform conditional jumps in the innermost loops to
       branch-less equivalents.  The intent is to remove control-flow from
       the innermost loops in order to improve the ability of the
       vectorization pass to handle these loops.  This is enabled by
       default if vectorization is enabled.
  
! '-ftree-loop-if-convert-stores'
       Attempt to also if-convert conditional jumps containing memory
       writes.  This transformation can be unsafe for multi-threaded
       programs as it transforms conditional memory writes into
*************** optimizations to be performed is desired
*** 6843,6853 ****
              A[i] = cond ? expr : A[i];
       potentially producing data races.
  
! `-ftree-loop-distribution'
!      Perform loop distribution.  This flag can improve cache
!      performance on big loop bodies and allow further loop
!      optimizations, like parallelization or vectorization, to take
!      place.  For example, the loop
            DO I = 1, N
              A(I) = B(I) + C
              D(I) = E(I) * F
--- 6803,6813 ----
              A[i] = cond ? expr : A[i];
       potentially producing data races.
  
! '-ftree-loop-distribution'
!      Perform loop distribution.  This flag can improve cache performance
!      on big loop bodies and allow further loop optimizations, like
!      parallelization or vectorization, to take place.  For example, the
!      loop
            DO I = 1, N
              A(I) = B(I) + C
              D(I) = E(I) * F
*************** optimizations to be performed is desired
*** 6860,6871 ****
               D(I) = E(I) * F
            ENDDO
  
! `-ftree-loop-distribute-patterns'
       Perform loop distribution of patterns that can be code generated
!      with calls to a library.  This flag is enabled by default at `-O3'.
  
!      This pass distributes the initialization loops and generates a
!      call to memset zero.  For example, the loop
            DO I = 1, N
              A(I) = 0
              B(I) = A(I) + I
--- 6820,6831 ----
               D(I) = E(I) * F
            ENDDO
  
! '-ftree-loop-distribute-patterns'
       Perform loop distribution of patterns that can be code generated
!      with calls to a library.  This flag is enabled by default at '-O3'.
  
!      This pass distributes the initialization loops and generates a call
!      to memset zero.  For example, the loop
            DO I = 1, N
              A(I) = 0
              B(I) = A(I) + I
*************** optimizations to be performed is desired
*** 6880,7020 ****
       and the initialization loop is transformed into a call to memset
       zero.
  
! `-ftree-loop-im'
       Perform loop invariant motion on trees.  This pass moves only
       invariants that are hard to handle at RTL level (function calls,
       operations that expand to nontrivial sequences of insns).  With
!      `-funswitch-loops' it also moves operands of conditions that are
       invariant out of the loop, so that we can use just trivial
       invariantness analysis in loop unswitching.  The pass also includes
       store motion.
  
! `-ftree-loop-ivcanon'
       Create a canonical counter for number of iterations in loops for
       which determining number of iterations requires complicated
       analysis.  Later optimizations then may determine the number
       easily.  Useful especially in connection with unrolling.
  
! `-fivopts'
       Perform induction variable optimizations (strength reduction,
       induction variable merging and induction variable elimination) on
       trees.
  
! `-ftree-parallelize-loops=n'
       Parallelize loops, i.e., split their iteration space to run in n
       threads.  This is only possible for loops whose iterations are
       independent and can be arbitrarily reordered.  The optimization is
       only profitable on multiprocessor machines, for loops that are
       CPU-intensive, rather than constrained e.g. by memory bandwidth.
!      This option implies `-pthread', and thus is only supported on
!      targets that have support for `-pthread'.
  
! `-ftree-pta'
       Perform function-local points-to analysis on trees.  This flag is
!      enabled by default at `-O' and higher.
  
! `-ftree-sra'
       Perform scalar replacement of aggregates.  This pass replaces
       structure references with scalars to prevent committing structures
!      to memory too early.  This flag is enabled by default at `-O' and
       higher.
  
! `-ftree-ter'
       Perform temporary expression replacement during the SSA->normal
!      phase.  Single use/single def temporaries are replaced at their
!      use location with their defining expression.  This results in
!      non-GIMPLE code, but gives the expanders much more complex trees
!      to work on resulting in better RTL generation.  This is enabled by
!      default at `-O' and higher.
  
! `-ftree-slsr'
!      Perform straight-line strength reduction on trees.  This
!      recognizes related expressions involving multiplications and
!      replaces them by less expensive calculations when possible.  This
!      is enabled by default at `-O' and higher.
  
! `-ftree-vectorize'
!      Perform vectorization on trees. This flag enables
!      `-ftree-loop-vectorize' and `-ftree-slp-vectorize' if not
       explicitly specified.
  
! `-ftree-loop-vectorize'
!      Perform loop vectorization on trees. This flag is enabled by
!      default at `-O3' and when `-ftree-vectorize' is enabled.
  
! `-ftree-slp-vectorize'
!      Perform basic block vectorization on trees. This flag is enabled
!      by default at `-O3' and when `-ftree-vectorize' is enabled.
  
! `-fvect-cost-model=MODEL'
       Alter the cost model used for vectorization.  The MODEL argument
!      should be one of `unlimited', `dynamic' or `cheap'.  With the
!      `unlimited' model the vectorized code-path is assumed to be
!      profitable while with the `dynamic' model a runtime check guards
       the vectorized code-path to enable it only for iteration counts
       that will likely execute faster than when executing the original
!      scalar loop.  The `cheap' model disables vectorization of loops
       where doing so would be cost prohibitive for example due to
       required runtime checks for data dependence or alignment but
!      otherwise is equal to the `dynamic' model.  The default cost model
!      depends on other optimization flags and is either `dynamic' or
!      `cheap'.
  
! `-fsimd-cost-model=MODEL'
       Alter the cost model used for vectorization of loops marked with
       the OpenMP or Cilk Plus simd directive.  The MODEL argument should
!      be one of `unlimited', `dynamic', `cheap'.  All values of MODEL
!      have the same meaning as described in `-fvect-cost-model' and by
!      default a cost model defined with `-fvect-cost-model' is used.
  
! `-ftree-vrp'
       Perform Value Range Propagation on trees.  This is similar to the
       constant propagation pass, but instead of values, ranges of values
       are propagated.  This allows the optimizers to remove unnecessary
!      range checks like array bound checks and null pointer checks.
!      This is enabled by default at `-O2' and higher.  Null pointer check
!      elimination is only done if `-fdelete-null-pointer-checks' is
       enabled.
  
! `-fsplit-paths'
       Split paths leading to loop backedges.  This can improve dead code
       elimination and common subexpression elimination.  This is enabled
!      by default at `-O2' and above.
  
! `-fsplit-ivs-in-unroller'
       Enables expression of values of induction variables in later
       iterations of the unrolled loop using the value in the first
       iteration.  This breaks long dependency chains, thus improving
       efficiency of the scheduling passes.
  
!      A combination of `-fweb' and CSE is often sufficient to obtain the
!      same effect.  However, that is not reliable in cases where the
!      loop body is more complicated than a single basic block.  It also
!      does not work at all on some architectures due to restrictions in
!      the CSE pass.
  
       This optimization is enabled by default.
  
! `-fvariable-expansion-in-unroller'
       With this option, the compiler creates multiple copies of some
!      local variables when unrolling a loop, which can result in
!      superior code.
  
! `-fpartial-inlining'
       Inline parts of functions.  This option has any effect only when
!      inlining itself is turned on by the `-finline-functions' or
!      `-finline-small-functions' options.
  
!      Enabled at level `-O2'.
  
! `-fpredictive-commoning'
       Perform predictive commoning optimization, i.e., reusing
       computations (especially memory loads and stores) performed in
       previous iterations of loops.
  
!      This option is enabled at level `-O3'.
  
! `-fprefetch-loop-arrays'
       If supported by the target machine, generate instructions to
       prefetch memory to improve the performance of loops that access
       large arrays.
--- 6840,6980 ----
       and the initialization loop is transformed into a call to memset
       zero.
  
! '-ftree-loop-im'
       Perform loop invariant motion on trees.  This pass moves only
       invariants that are hard to handle at RTL level (function calls,
       operations that expand to nontrivial sequences of insns).  With
!      '-funswitch-loops' it also moves operands of conditions that are
       invariant out of the loop, so that we can use just trivial
       invariantness analysis in loop unswitching.  The pass also includes
       store motion.
  
! '-ftree-loop-ivcanon'
       Create a canonical counter for number of iterations in loops for
       which determining number of iterations requires complicated
       analysis.  Later optimizations then may determine the number
       easily.  Useful especially in connection with unrolling.
  
! '-fivopts'
       Perform induction variable optimizations (strength reduction,
       induction variable merging and induction variable elimination) on
       trees.
  
! '-ftree-parallelize-loops=n'
       Parallelize loops, i.e., split their iteration space to run in n
       threads.  This is only possible for loops whose iterations are
       independent and can be arbitrarily reordered.  The optimization is
       only profitable on multiprocessor machines, for loops that are
       CPU-intensive, rather than constrained e.g. by memory bandwidth.
!      This option implies '-pthread', and thus is only supported on
!      targets that have support for '-pthread'.
  
! '-ftree-pta'
       Perform function-local points-to analysis on trees.  This flag is
!      enabled by default at '-O' and higher.
  
! '-ftree-sra'
       Perform scalar replacement of aggregates.  This pass replaces
       structure references with scalars to prevent committing structures
!      to memory too early.  This flag is enabled by default at '-O' and
       higher.
  
! '-ftree-ter'
       Perform temporary expression replacement during the SSA->normal
!      phase.  Single use/single def temporaries are replaced at their use
!      location with their defining expression.  This results in
!      non-GIMPLE code, but gives the expanders much more complex trees to
!      work on resulting in better RTL generation.  This is enabled by
!      default at '-O' and higher.
  
! '-ftree-slsr'
!      Perform straight-line strength reduction on trees.  This recognizes
!      related expressions involving multiplications and replaces them by
!      less expensive calculations when possible.  This is enabled by
!      default at '-O' and higher.
  
! '-ftree-vectorize'
!      Perform vectorization on trees.  This flag enables
!      '-ftree-loop-vectorize' and '-ftree-slp-vectorize' if not
       explicitly specified.
  
! '-ftree-loop-vectorize'
!      Perform loop vectorization on trees.  This flag is enabled by
!      default at '-O3' and when '-ftree-vectorize' is enabled.
  
! '-ftree-slp-vectorize'
!      Perform basic block vectorization on trees.  This flag is enabled
!      by default at '-O3' and when '-ftree-vectorize' is enabled.
  
! '-fvect-cost-model=MODEL'
       Alter the cost model used for vectorization.  The MODEL argument
!      should be one of 'unlimited', 'dynamic' or 'cheap'.  With the
!      'unlimited' model the vectorized code-path is assumed to be
!      profitable while with the 'dynamic' model a runtime check guards
       the vectorized code-path to enable it only for iteration counts
       that will likely execute faster than when executing the original
!      scalar loop.  The 'cheap' model disables vectorization of loops
       where doing so would be cost prohibitive for example due to
       required runtime checks for data dependence or alignment but
!      otherwise is equal to the 'dynamic' model.  The default cost model
!      depends on other optimization flags and is either 'dynamic' or
!      'cheap'.
  
! '-fsimd-cost-model=MODEL'
       Alter the cost model used for vectorization of loops marked with
       the OpenMP or Cilk Plus simd directive.  The MODEL argument should
!      be one of 'unlimited', 'dynamic', 'cheap'.  All values of MODEL
!      have the same meaning as described in '-fvect-cost-model' and by
!      default a cost model defined with '-fvect-cost-model' is used.
  
! '-ftree-vrp'
       Perform Value Range Propagation on trees.  This is similar to the
       constant propagation pass, but instead of values, ranges of values
       are propagated.  This allows the optimizers to remove unnecessary
!      range checks like array bound checks and null pointer checks.  This
!      is enabled by default at '-O2' and higher.  Null pointer check
!      elimination is only done if '-fdelete-null-pointer-checks' is
       enabled.
  
! '-fsplit-paths'
       Split paths leading to loop backedges.  This can improve dead code
       elimination and common subexpression elimination.  This is enabled
!      by default at '-O2' and above.
  
! '-fsplit-ivs-in-unroller'
       Enables expression of values of induction variables in later
       iterations of the unrolled loop using the value in the first
       iteration.  This breaks long dependency chains, thus improving
       efficiency of the scheduling passes.
  
!      A combination of '-fweb' and CSE is often sufficient to obtain the
!      same effect.  However, that is not reliable in cases where the loop
!      body is more complicated than a single basic block.  It also does
!      not work at all on some architectures due to restrictions in the
!      CSE pass.
  
       This optimization is enabled by default.
  
! '-fvariable-expansion-in-unroller'
       With this option, the compiler creates multiple copies of some
!      local variables when unrolling a loop, which can result in superior
!      code.
  
! '-fpartial-inlining'
       Inline parts of functions.  This option has any effect only when
!      inlining itself is turned on by the '-finline-functions' or
!      '-finline-small-functions' options.
  
!      Enabled at level '-O2'.
  
! '-fpredictive-commoning'
       Perform predictive commoning optimization, i.e., reusing
       computations (especially memory loads and stores) performed in
       previous iterations of loops.
  
!      This option is enabled at level '-O3'.
  
! '-fprefetch-loop-arrays'
       If supported by the target machine, generate instructions to
       prefetch memory to improve the performance of loops that access
       large arrays.
*************** optimizations to be performed is desired
*** 7022,7108 ****
       This option may generate better or worse code; results are highly
       dependent on the structure of loops within the source code.
  
!      Disabled at level `-Os'.
  
! `-fno-peephole'
! `-fno-peephole2'
       Disable any machine-specific peephole optimizations.  The
!      difference between `-fno-peephole' and `-fno-peephole2' is in how
       they are implemented in the compiler; some targets use one, some
       use the other, a few use both.
  
!      `-fpeephole' is enabled by default.  `-fpeephole2' enabled at
!      levels `-O2', `-O3', `-Os'.
  
! `-fno-guess-branch-probability'
       Do not guess branch probabilities using heuristics.
  
       GCC uses heuristics to guess branch probabilities if they are not
!      provided by profiling feedback (`-fprofile-arcs').  These
       heuristics are based on the control flow graph.  If some branch
!      probabilities are specified by `__builtin_expect', then the
       heuristics are used to guess branch probabilities for the rest of
!      the control flow graph, taking the `__builtin_expect' info into
       account.  The interactions between the heuristics and
!      `__builtin_expect' can be complex, and in some cases, it may be
       useful to disable the heuristics so that the effects of
!      `__builtin_expect' are easier to understand.
  
!      The default is `-fguess-branch-probability' at levels `-O', `-O2',
!      `-O3', `-Os'.
  
! `-freorder-blocks'
       Reorder basic blocks in the compiled function in order to reduce
       number of taken branches and improve code locality.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-freorder-blocks-algorithm=ALGORITHM'
       Use the specified algorithm for basic block reordering.  The
!      ALGORITHM argument can be `simple', which does not increase code
!      size (except sometimes due to secondary effects like alignment),
!      or `stc', the "software trace cache" algorithm, which tries to put
!      all often executed code together, minimizing the number of branches
       executed by making extra copies of code.
  
!      The default is `simple' at levels `-O', `-Os', and `stc' at levels
!      `-O2', `-O3'.
  
! `-freorder-blocks-and-partition'
!      In addition to reordering basic blocks in the compiled function,
!      in order to reduce number of taken branches, partitions hot and
!      cold basic blocks into separate sections of the assembly and `.o'
!      files, to improve paging and cache locality performance.
  
       This optimization is automatically turned off in the presence of
       exception handling, for linkonce sections, for functions with a
       user-defined section attribute and on any architecture that does
       not support named sections.
  
!      Enabled for x86 at levels `-O2', `-O3'.
  
! `-freorder-functions'
       Reorder functions in the object file in order to improve code
       locality.  This is implemented by using special subsections
!      `.text.hot' for most frequently executed functions and
!      `.text.unlikely' for unlikely executed functions.  Reordering is
       done by the linker so object file format must support named
       sections and linker must place them in a reasonable way.
  
       Also profile feedback must be available to make this option
!      effective.  See `-fprofile-arcs' for details.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-fstrict-aliasing'
       Allow the compiler to assume the strictest aliasing rules
       applicable to the language being compiled.  For C (and C++), this
       activates optimizations based on the type of expressions.  In
!      particular, an object of one type is assumed never to reside at
!      the same address as an object of a different type, unless the
!      types are almost the same.  For example, an `unsigned int' can
!      alias an `int', but not a `void*' or a `double'.  A character type
!      may alias any other type.
  
       Pay special attention to code like this:
            union a_union {
--- 6982,7068 ----
       This option may generate better or worse code; results are highly
       dependent on the structure of loops within the source code.
  
!      Disabled at level '-Os'.
  
! '-fno-peephole'
! '-fno-peephole2'
       Disable any machine-specific peephole optimizations.  The
!      difference between '-fno-peephole' and '-fno-peephole2' is in how
       they are implemented in the compiler; some targets use one, some
       use the other, a few use both.
  
!      '-fpeephole' is enabled by default.  '-fpeephole2' enabled at
!      levels '-O2', '-O3', '-Os'.
  
! '-fno-guess-branch-probability'
       Do not guess branch probabilities using heuristics.
  
       GCC uses heuristics to guess branch probabilities if they are not
!      provided by profiling feedback ('-fprofile-arcs').  These
       heuristics are based on the control flow graph.  If some branch
!      probabilities are specified by '__builtin_expect', then the
       heuristics are used to guess branch probabilities for the rest of
!      the control flow graph, taking the '__builtin_expect' info into
       account.  The interactions between the heuristics and
!      '__builtin_expect' can be complex, and in some cases, it may be
       useful to disable the heuristics so that the effects of
!      '__builtin_expect' are easier to understand.
  
!      The default is '-fguess-branch-probability' at levels '-O', '-O2',
!      '-O3', '-Os'.
  
! '-freorder-blocks'
       Reorder basic blocks in the compiled function in order to reduce
       number of taken branches and improve code locality.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-freorder-blocks-algorithm=ALGORITHM'
       Use the specified algorithm for basic block reordering.  The
!      ALGORITHM argument can be 'simple', which does not increase code
!      size (except sometimes due to secondary effects like alignment), or
!      'stc', the "software trace cache" algorithm, which tries to put all
!      often executed code together, minimizing the number of branches
       executed by making extra copies of code.
  
!      The default is 'simple' at levels '-O', '-Os', and 'stc' at levels
!      '-O2', '-O3'.
  
! '-freorder-blocks-and-partition'
!      In addition to reordering basic blocks in the compiled function, in
!      order to reduce number of taken branches, partitions hot and cold
!      basic blocks into separate sections of the assembly and '.o' files,
!      to improve paging and cache locality performance.
  
       This optimization is automatically turned off in the presence of
       exception handling, for linkonce sections, for functions with a
       user-defined section attribute and on any architecture that does
       not support named sections.
  
!      Enabled for x86 at levels '-O2', '-O3'.
  
! '-freorder-functions'
       Reorder functions in the object file in order to improve code
       locality.  This is implemented by using special subsections
!      '.text.hot' for most frequently executed functions and
!      '.text.unlikely' for unlikely executed functions.  Reordering is
       done by the linker so object file format must support named
       sections and linker must place them in a reasonable way.
  
       Also profile feedback must be available to make this option
!      effective.  See '-fprofile-arcs' for details.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-fstrict-aliasing'
       Allow the compiler to assume the strictest aliasing rules
       applicable to the language being compiled.  For C (and C++), this
       activates optimizations based on the type of expressions.  In
!      particular, an object of one type is assumed never to reside at the
!      same address as an object of a different type, unless the types are
!      almost the same.  For example, an 'unsigned int' can alias an
!      'int', but not a 'void*' or a 'double'.  A character type may alias
!      any other type.
  
       Pay special attention to code like this:
            union a_union {
*************** optimizations to be performed is desired
*** 7117,7123 ****
            }
       The practice of reading from a different union member than the one
       most recently written to (called "type-punning") is common.  Even
!      with `-fstrict-aliasing', type-punning is allowed, provided the
       memory is accessed through the union type.  So, the code above
       works as expected.  *Note Structures unions enumerations and
       bit-fields implementation::.  However, this code might not:
--- 7077,7083 ----
            }
       The practice of reading from a different union member than the one
       most recently written to (called "type-punning") is common.  Even
!      with '-fstrict-aliasing', type-punning is allowed, provided the
       memory is accessed through the union type.  So, the code above
       works as expected.  *Note Structures unions enumerations and
       bit-fields implementation::.  However, this code might not:
*************** optimizations to be performed is desired
*** 7137,7154 ****
              return ((union a_union *) &d)->i;
            }
  
!      The `-fstrict-aliasing' option is enabled at levels `-O2', `-O3',
!      `-Os'.
  
! `-fstrict-overflow'
       Allow the compiler to assume strict signed overflow rules,
       depending on the language being compiled.  For C (and C++) this
       means that overflow when doing arithmetic with signed numbers is
       undefined, which means that the compiler may assume that it does
       not happen.  This permits various optimizations.  For example, the
!      compiler assumes that an expression like `i + 10 > i' is always
!      true for signed `i'.  This assumption is only valid if signed
!      overflow is undefined, as the expression is false if `i + 10'
       overflows when using twos complement arithmetic.  When this option
       is in effect any attempt to determine whether an operation on
       signed numbers overflows must be written carefully to not actually
--- 7097,7114 ----
              return ((union a_union *) &d)->i;
            }
  
!      The '-fstrict-aliasing' option is enabled at levels '-O2', '-O3',
!      '-Os'.
  
! '-fstrict-overflow'
       Allow the compiler to assume strict signed overflow rules,
       depending on the language being compiled.  For C (and C++) this
       means that overflow when doing arithmetic with signed numbers is
       undefined, which means that the compiler may assume that it does
       not happen.  This permits various optimizations.  For example, the
!      compiler assumes that an expression like 'i + 10 > i' is always
!      true for signed 'i'.  This assumption is only valid if signed
!      overflow is undefined, as the expression is false if 'i + 10'
       overflows when using twos complement arithmetic.  When this option
       is in effect any attempt to determine whether an operation on
       signed numbers overflows must be written carefully to not actually
*************** optimizations to be performed is desired
*** 7158,7262 ****
       semantics: given a pointer to an object, if adding an offset to
       that pointer does not produce a pointer to the same object, the
       addition is undefined.  This permits the compiler to conclude that
!      `p + u > p' is always true for a pointer `p' and unsigned integer
!      `u'.  This assumption is only valid because pointer wraparound is
!      undefined, as the expression is false if `p + u' overflows using
       twos complement arithmetic.
  
!      See also the `-fwrapv' option.  Using `-fwrapv' means that integer
!      signed overflow is fully defined: it wraps.  When `-fwrapv' is
!      used, there is no difference between `-fstrict-overflow' and
!      `-fno-strict-overflow' for integers.  With `-fwrapv' certain types
       of overflow are permitted.  For example, if the compiler gets an
       overflow when doing arithmetic on constants, the overflowed value
!      can still be used with `-fwrapv', but not otherwise.
  
!      The `-fstrict-overflow' option is enabled at levels `-O2', `-O3',
!      `-Os'.
  
! `-falign-functions'
! `-falign-functions=N'
       Align the start of functions to the next power-of-two greater than
!      N, skipping up to N bytes.  For instance, `-falign-functions=32'
       aligns functions to the next 32-byte boundary, but
!      `-falign-functions=24' aligns to the next 32-byte boundary only if
       this can be done by skipping 23 bytes or less.
  
!      `-fno-align-functions' and `-falign-functions=1' are equivalent
!      and mean that functions are not aligned.
  
!      Some assemblers only support this flag when N is a power of two;
!      in that case, it is rounded up.
  
       If N is not specified or is zero, use a machine-dependent default.
  
!      Enabled at levels `-O2', `-O3'.
  
! `-falign-labels'
! `-falign-labels=N'
       Align all branch targets to a power-of-two boundary, skipping up to
!      N bytes like `-falign-functions'.  This option can easily make
!      code slower, because it must insert dummy operations for when the
!      branch target is reached in the usual flow of the code.
  
!      `-fno-align-labels' and `-falign-labels=1' are equivalent and mean
       that labels are not aligned.
  
!      If `-falign-loops' or `-falign-jumps' are applicable and are
       greater than this value, then their values are used instead.
  
       If N is not specified or is zero, use a machine-dependent default
!      which is very likely to be `1', meaning no alignment.
  
!      Enabled at levels `-O2', `-O3'.
  
! `-falign-loops'
! `-falign-loops=N'
!      Align loops to a power-of-two boundary, skipping up to N bytes
!      like `-falign-functions'.  If the loops are executed many times,
!      this makes up for any execution of the dummy operations.
  
!      `-fno-align-loops' and `-falign-loops=1' are equivalent and mean
!      that loops are not aligned.
  
       If N is not specified or is zero, use a machine-dependent default.
  
!      Enabled at levels `-O2', `-O3'.
  
! `-falign-jumps'
! `-falign-jumps=N'
       Align branch targets to a power-of-two boundary, for branch targets
       where the targets can only be reached by jumping, skipping up to N
!      bytes like `-falign-functions'.  In this case, no dummy operations
       need be executed.
  
!      `-fno-align-jumps' and `-falign-jumps=1' are equivalent and mean
       that loops are not aligned.
  
       If N is not specified or is zero, use a machine-dependent default.
  
!      Enabled at levels `-O2', `-O3'.
  
! `-funit-at-a-time'
!      This option is left for compatibility reasons. `-funit-at-a-time'
!      has no effect, while `-fno-unit-at-a-time' implies
!      `-fno-toplevel-reorder' and `-fno-section-anchors'.
  
       Enabled by default.
  
! `-fno-toplevel-reorder'
!      Do not reorder top-level functions, variables, and `asm'
       statements.  Output them in the same order that they appear in the
       input file.  When this option is used, unreferenced static
       variables are not removed.  This option is intended to support
       existing code that relies on a particular ordering.  For new code,
       it is better to use attributes when possible.
  
!      Enabled at level `-O0'.  When disabled explicitly, it also implies
!      `-fno-section-anchors', which is otherwise enabled at `-O0' on some
       targets.
  
! `-fweb'
       Constructs webs as commonly used for register allocation purposes
       and assign each web individual pseudo register.  This allows the
       register allocation pass to operate on pseudos directly, but also
--- 7118,7226 ----
       semantics: given a pointer to an object, if adding an offset to
       that pointer does not produce a pointer to the same object, the
       addition is undefined.  This permits the compiler to conclude that
!      'p + u > p' is always true for a pointer 'p' and unsigned integer
!      'u'.  This assumption is only valid because pointer wraparound is
!      undefined, as the expression is false if 'p + u' overflows using
       twos complement arithmetic.
  
!      See also the '-fwrapv' option.  Using '-fwrapv' means that integer
!      signed overflow is fully defined: it wraps.  When '-fwrapv' is
!      used, there is no difference between '-fstrict-overflow' and
!      '-fno-strict-overflow' for integers.  With '-fwrapv' certain types
       of overflow are permitted.  For example, if the compiler gets an
       overflow when doing arithmetic on constants, the overflowed value
!      can still be used with '-fwrapv', but not otherwise.
  
!      The '-fstrict-overflow' option is enabled at levels '-O2', '-O3',
!      '-Os'.
  
! '-falign-functions'
! '-falign-functions=N'
       Align the start of functions to the next power-of-two greater than
!      N, skipping up to N bytes.  For instance, '-falign-functions=32'
       aligns functions to the next 32-byte boundary, but
!      '-falign-functions=24' aligns to the next 32-byte boundary only if
       this can be done by skipping 23 bytes or less.
  
!      '-fno-align-functions' and '-falign-functions=1' are equivalent and
!      mean that functions are not aligned.
  
!      Some assemblers only support this flag when N is a power of two; in
!      that case, it is rounded up.
  
       If N is not specified or is zero, use a machine-dependent default.
+      The maximum allowed N option value is 65536.
  
!      Enabled at levels '-O2', '-O3'.
  
! '-falign-labels'
! '-falign-labels=N'
       Align all branch targets to a power-of-two boundary, skipping up to
!      N bytes like '-falign-functions'.  This option can easily make code
!      slower, because it must insert dummy operations for when the branch
!      target is reached in the usual flow of the code.
  
!      '-fno-align-labels' and '-falign-labels=1' are equivalent and mean
       that labels are not aligned.
  
!      If '-falign-loops' or '-falign-jumps' are applicable and are
       greater than this value, then their values are used instead.
  
       If N is not specified or is zero, use a machine-dependent default
!      which is very likely to be '1', meaning no alignment.  The maximum
!      allowed N option value is 65536.
  
!      Enabled at levels '-O2', '-O3'.
  
! '-falign-loops'
! '-falign-loops=N'
!      Align loops to a power-of-two boundary, skipping up to N bytes like
!      '-falign-functions'.  If the loops are executed many times, this
!      makes up for any execution of the dummy operations.
  
!      '-fno-align-loops' and '-falign-loops=1' are equivalent and mean
!      that loops are not aligned.  The maximum allowed N option value is
!      65536.
  
       If N is not specified or is zero, use a machine-dependent default.
  
!      Enabled at levels '-O2', '-O3'.
  
! '-falign-jumps'
! '-falign-jumps=N'
       Align branch targets to a power-of-two boundary, for branch targets
       where the targets can only be reached by jumping, skipping up to N
!      bytes like '-falign-functions'.  In this case, no dummy operations
       need be executed.
  
!      '-fno-align-jumps' and '-falign-jumps=1' are equivalent and mean
       that loops are not aligned.
  
       If N is not specified or is zero, use a machine-dependent default.
+      The maximum allowed N option value is 65536.
  
!      Enabled at levels '-O2', '-O3'.
  
! '-funit-at-a-time'
!      This option is left for compatibility reasons.  '-funit-at-a-time'
!      has no effect, while '-fno-unit-at-a-time' implies
!      '-fno-toplevel-reorder' and '-fno-section-anchors'.
  
       Enabled by default.
  
! '-fno-toplevel-reorder'
!      Do not reorder top-level functions, variables, and 'asm'
       statements.  Output them in the same order that they appear in the
       input file.  When this option is used, unreferenced static
       variables are not removed.  This option is intended to support
       existing code that relies on a particular ordering.  For new code,
       it is better to use attributes when possible.
  
!      Enabled at level '-O0'.  When disabled explicitly, it also implies
!      '-fno-section-anchors', which is otherwise enabled at '-O0' on some
       targets.
  
! '-fweb'
       Constructs webs as commonly used for register allocation purposes
       and assign each web individual pseudo register.  This allows the
       register allocation pass to operate on pseudos directly, but also
*************** optimizations to be performed is desired
*** 7265,7284 ****
       debugging impossible, since variables no longer stay in a "home
       register".
  
!      Enabled by default with `-funroll-loops'.
  
! `-fwhole-program'
       Assume that the current compilation unit represents the whole
       program being compiled.  All public functions and variables with
!      the exception of `main' and those merged by attribute
!      `externally_visible' become static functions and in effect are
       optimized more aggressively by interprocedural optimizers.
  
!      This option should not be used in combination with `-flto'.
       Instead relying on a linker plugin should provide safer and more
       precise information.
  
! `-flto[=N]'
       This option runs the standard link-time optimizer.  When invoked
       with source code, it generates GIMPLE (one of GCC's internal
       representations) and writes it to special ELF sections in the
--- 7229,7248 ----
       debugging impossible, since variables no longer stay in a "home
       register".
  
!      Enabled by default with '-funroll-loops'.
  
! '-fwhole-program'
       Assume that the current compilation unit represents the whole
       program being compiled.  All public functions and variables with
!      the exception of 'main' and those merged by attribute
!      'externally_visible' become static functions and in effect are
       optimized more aggressively by interprocedural optimizers.
  
!      This option should not be used in combination with '-flto'.
       Instead relying on a linker plugin should provide safer and more
       precise information.
  
! '-flto[=N]'
       This option runs the standard link-time optimizer.  When invoked
       with source code, it generates GIMPLE (one of GCC's internal
       representations) and writes it to special ELF sections in the
*************** optimizations to be performed is desired
*** 7286,7292 ****
       function bodies are read from these ELF sections and instantiated
       as if they had been part of the same translation unit.
  
!      To use the link-time optimizer, `-flto' and optimization options
       should be specified at compile time and during the final link.  It
       is recommended that you compile all the files participating in the
       same link with the same options and also specify those options at
--- 7250,7256 ----
       function bodies are read from these ELF sections and instantiated
       as if they had been part of the same translation unit.
  
!      To use the link-time optimizer, '-flto' and optimization options
       should be specified at compile time and during the final link.  It
       is recommended that you compile all the files participating in the
       same link with the same options and also specify those options at
*************** optimizations to be performed is desired
*** 7297,7350 ****
            gcc -o myprog -flto -O2 foo.o bar.o
  
       The first two invocations to GCC save a bytecode representation of
!      GIMPLE into special ELF sections inside `foo.o' and `bar.o'.  The
!      final invocation reads the GIMPLE bytecode from `foo.o' and
!      `bar.o', merges the two files into a single internal image, and
!      compiles the result as usual.  Since both `foo.o' and `bar.o' are
       merged into a single image, this causes all the interprocedural
       analyses and optimizations in GCC to work across the two files as
       if they were a single one.  This means, for example, that the
!      inliner is able to inline functions in `bar.o' into functions in
!      `foo.o' and vice-versa.
  
       Another (simpler) way to enable link-time optimization is:
  
            gcc -o myprog -flto -O2 foo.c bar.c
  
!      The above generates bytecode for `foo.c' and `bar.c', merges them
       together into a single GIMPLE representation and optimizes them as
!      usual to produce `myprog'.
  
       The only important thing to keep in mind is that to enable
       link-time optimizations you need to use the GCC driver to perform
       the link step.  GCC then automatically performs link-time
       optimization if any of the objects involved were compiled with the
!      `-flto' command-line option.  You generally should specify the
       optimization options to be used for link-time optimization though
       GCC tries to be clever at guessing an optimization level to use
!      from the options used at compile time if you fail to specify one
!      at link time.  You can always override the automatic decision to
!      do link-time optimization at link time by passing `-fno-lto' to
!      the link command.
  
       To make whole program optimization effective, it is necessary to
       make certain whole program assumptions.  The compiler needs to know
       what functions and variables can be accessed by libraries and
!      runtime outside of the link-time optimized unit.  When supported
!      by the linker, the linker plugin (see `-fuse-linker-plugin')
!      passes information to the compiler about used and externally
!      visible symbols.  When the linker plugin is not available,
!      `-fwhole-program' should be used to allow the compiler to make
       these assumptions, which leads to more aggressive optimization
       decisions.
  
!      When `-fuse-linker-plugin' is not enabled, when a file is compiled
!      with `-flto', the generated object file is larger than a regular
       object file because it contains GIMPLE bytecodes and the usual
!      final code (see `-ffat-lto-objects'.  This means that object files
       with LTO information can be linked as normal object files; if
!      `-fno-lto' is passed to the linker, no interprocedural
!      optimizations are applied.  Note that when `-fno-fat-lto-objects'
       is enabled the compile stage is faster but you cannot perform a
       regular, non-LTO link on them.
  
--- 7261,7314 ----
            gcc -o myprog -flto -O2 foo.o bar.o
  
       The first two invocations to GCC save a bytecode representation of
!      GIMPLE into special ELF sections inside 'foo.o' and 'bar.o'.  The
!      final invocation reads the GIMPLE bytecode from 'foo.o' and
!      'bar.o', merges the two files into a single internal image, and
!      compiles the result as usual.  Since both 'foo.o' and 'bar.o' are
       merged into a single image, this causes all the interprocedural
       analyses and optimizations in GCC to work across the two files as
       if they were a single one.  This means, for example, that the
!      inliner is able to inline functions in 'bar.o' into functions in
!      'foo.o' and vice-versa.
  
       Another (simpler) way to enable link-time optimization is:
  
            gcc -o myprog -flto -O2 foo.c bar.c
  
!      The above generates bytecode for 'foo.c' and 'bar.c', merges them
       together into a single GIMPLE representation and optimizes them as
!      usual to produce 'myprog'.
  
       The only important thing to keep in mind is that to enable
       link-time optimizations you need to use the GCC driver to perform
       the link step.  GCC then automatically performs link-time
       optimization if any of the objects involved were compiled with the
!      '-flto' command-line option.  You generally should specify the
       optimization options to be used for link-time optimization though
       GCC tries to be clever at guessing an optimization level to use
!      from the options used at compile time if you fail to specify one at
!      link time.  You can always override the automatic decision to do
!      link-time optimization at link time by passing '-fno-lto' to the
!      link command.
  
       To make whole program optimization effective, it is necessary to
       make certain whole program assumptions.  The compiler needs to know
       what functions and variables can be accessed by libraries and
!      runtime outside of the link-time optimized unit.  When supported by
!      the linker, the linker plugin (see '-fuse-linker-plugin') passes
!      information to the compiler about used and externally visible
!      symbols.  When the linker plugin is not available,
!      '-fwhole-program' should be used to allow the compiler to make
       these assumptions, which leads to more aggressive optimization
       decisions.
  
!      When '-fuse-linker-plugin' is not enabled, when a file is compiled
!      with '-flto', the generated object file is larger than a regular
       object file because it contains GIMPLE bytecodes and the usual
!      final code (see '-ffat-lto-objects'.  This means that object files
       with LTO information can be linked as normal object files; if
!      '-fno-lto' is passed to the linker, no interprocedural
!      optimizations are applied.  Note that when '-fno-fat-lto-objects'
       is enabled the compile stage is faster but you cannot perform a
       regular, non-LTO link on them.
  
*************** optimizations to be performed is desired
*** 7357,7399 ****
            gcc -o myprog -O3 foo.o bar.o
  
       This produces individual object files with unoptimized assembler
!      code, but the resulting binary `myprog' is optimized at `-O3'.
!      If, instead, the final binary is generated with `-fno-lto', then
!      `myprog' is not optimized.
  
       When producing the final binary, GCC only applies link-time
!      optimizations to those files that contain bytecode.  Therefore,
!      you can mix and match object files and libraries with GIMPLE
!      bytecodes and final object code.  GCC automatically selects which
!      files to optimize in LTO mode and which files to link without
!      further processing.
  
       There are some code generation flags preserved by GCC when
       generating bytecodes, as they need to be used during the final link
       stage.  Generally options specified at link time override those
       specified at compile time.
  
!      If you do not specify an optimization level option `-O' at link
       time, then GCC uses the highest optimization level used when
       compiling the object files.
  
       Currently, the following options and their settings are taken from
!      the first object file that explicitly specifies them: `-fPIC',
!      `-fpic', `-fpie', `-fcommon', `-fexceptions',
!      `-fnon-call-exceptions', `-fgnu-tm' and all the `-m' target flags.
  
!      Certain ABI-changing flags are required to match in all
!      compilation units, and trying to override this at link time with a
!      conflicting value is ignored.  This includes options such as
!      `-freg-struct-return' and `-fpcc-struct-return'.
  
!      Other options such as `-ffp-contract', `-fno-strict-overflow',
!      `-fwrapv', `-fno-trapv' or `-fno-strict-aliasing' are passed
!      through to the link stage and merged conservatively for
!      conflicting translation units.  Specifically
!      `-fno-strict-overflow', `-fwrapv' and `-fno-trapv' take
!      precedence; and for example `-ffp-contract=off' takes precedence
!      over `-ffp-contract=fast'.  You can override them at link time.
  
       If LTO encounters objects with C linkage declared with incompatible
       types in separate translation units to be linked together
--- 7321,7363 ----
            gcc -o myprog -O3 foo.o bar.o
  
       This produces individual object files with unoptimized assembler
!      code, but the resulting binary 'myprog' is optimized at '-O3'.  If,
!      instead, the final binary is generated with '-fno-lto', then
!      'myprog' is not optimized.
  
       When producing the final binary, GCC only applies link-time
!      optimizations to those files that contain bytecode.  Therefore, you
!      can mix and match object files and libraries with GIMPLE bytecodes
!      and final object code.  GCC automatically selects which files to
!      optimize in LTO mode and which files to link without further
!      processing.
  
       There are some code generation flags preserved by GCC when
       generating bytecodes, as they need to be used during the final link
       stage.  Generally options specified at link time override those
       specified at compile time.
  
!      If you do not specify an optimization level option '-O' at link
       time, then GCC uses the highest optimization level used when
       compiling the object files.
  
       Currently, the following options and their settings are taken from
!      the first object file that explicitly specifies them: '-fPIC',
!      '-fpic', '-fpie', '-fcommon', '-fexceptions',
!      '-fnon-call-exceptions', '-fgnu-tm' and all the '-m' target flags.
  
!      Certain ABI-changing flags are required to match in all compilation
!      units, and trying to override this at link time with a conflicting
!      value is ignored.  This includes options such as
!      '-freg-struct-return' and '-fpcc-struct-return'.
  
!      Other options such as '-ffp-contract', '-fno-strict-overflow',
!      '-fwrapv', '-fno-trapv' or '-fno-strict-aliasing' are passed
!      through to the link stage and merged conservatively for conflicting
!      translation units.  Specifically '-fno-strict-overflow', '-fwrapv'
!      and '-fno-trapv' take precedence; and for example
!      '-ffp-contract=off' takes precedence over '-ffp-contract=fast'.
!      You can override them at link time.
  
       If LTO encounters objects with C linkage declared with incompatible
       types in separate translation units to be linked together
*************** optimizations to be performed is desired
*** 7410,7452 ****
            gfortran -c -flto baz.f90
            g++ -o myprog -flto -O3 foo.o bar.o baz.o -lgfortran
  
!      Notice that the final link is done with `g++' to get the C++
!      runtime libraries and `-lgfortran' is added to get the Fortran
       runtime libraries.  In general, when mixing languages in LTO mode,
       you should use the same link command options as when mixing
       languages in a regular (non-LTO) compilation.
  
       If object files containing GIMPLE bytecode are stored in a library
!      archive, say `libfoo.a', it is possible to extract and use them in
       an LTO link if you are using a linker with plugin support.  To
!      create static libraries suitable for LTO, use `gcc-ar' and
!      `gcc-ranlib' instead of `ar' and `ranlib'; to show the symbols of
!      object files with GIMPLE bytecode, use `gcc-nm'.  Those commands
!      require that `ar', `ranlib' and `nm' have been compiled with
!      plugin support.  At link time, use the the flag
!      `-fuse-linker-plugin' to ensure that the library participates in
!      the LTO optimization process:
  
            gcc -o myprog -O2 -flto -fuse-linker-plugin a.o b.o -lfoo
  
       With the linker plugin enabled, the linker extracts the needed
!      GIMPLE files from `libfoo.a' and passes them on to the running GCC
       to make them part of the aggregated GIMPLE image to be optimized.
  
       If you are not using a linker with plugin support and/or do not
!      enable the linker plugin, then the objects inside `libfoo.a' are
       extracted and linked as usual, but they do not participate in the
       LTO optimization process.  In order to make a static library
       suitable for both LTO optimization and usual linkage, compile its
!      object files with `-flto' `-ffat-lto-objects'.
  
       Link-time optimizations do not require the presence of the whole
!      program to operate.  If the program does not require any symbols
!      to be exported, it is possible to combine `-flto' and
!      `-fwhole-program' to allow the interprocedural optimizers to use
!      more aggressive assumptions which may lead to improved
!      optimization opportunities.  Use of `-fwhole-program' is not
!      needed when linker plugin is active (see `-fuse-linker-plugin').
  
       The current implementation of LTO makes no attempt to generate
       bytecode that is portable between different types of hosts.  The
--- 7374,7416 ----
            gfortran -c -flto baz.f90
            g++ -o myprog -flto -O3 foo.o bar.o baz.o -lgfortran
  
!      Notice that the final link is done with 'g++' to get the C++
!      runtime libraries and '-lgfortran' is added to get the Fortran
       runtime libraries.  In general, when mixing languages in LTO mode,
       you should use the same link command options as when mixing
       languages in a regular (non-LTO) compilation.
  
       If object files containing GIMPLE bytecode are stored in a library
!      archive, say 'libfoo.a', it is possible to extract and use them in
       an LTO link if you are using a linker with plugin support.  To
!      create static libraries suitable for LTO, use 'gcc-ar' and
!      'gcc-ranlib' instead of 'ar' and 'ranlib'; to show the symbols of
!      object files with GIMPLE bytecode, use 'gcc-nm'.  Those commands
!      require that 'ar', 'ranlib' and 'nm' have been compiled with plugin
!      support.  At link time, use the the flag '-fuse-linker-plugin' to
!      ensure that the library participates in the LTO optimization
!      process:
  
            gcc -o myprog -O2 -flto -fuse-linker-plugin a.o b.o -lfoo
  
       With the linker plugin enabled, the linker extracts the needed
!      GIMPLE files from 'libfoo.a' and passes them on to the running GCC
       to make them part of the aggregated GIMPLE image to be optimized.
  
       If you are not using a linker with plugin support and/or do not
!      enable the linker plugin, then the objects inside 'libfoo.a' are
       extracted and linked as usual, but they do not participate in the
       LTO optimization process.  In order to make a static library
       suitable for both LTO optimization and usual linkage, compile its
!      object files with '-flto' '-ffat-lto-objects'.
  
       Link-time optimizations do not require the presence of the whole
!      program to operate.  If the program does not require any symbols to
!      be exported, it is possible to combine '-flto' and
!      '-fwhole-program' to allow the interprocedural optimizers to use
!      more aggressive assumptions which may lead to improved optimization
!      opportunities.  Use of '-fwhole-program' is not needed when linker
!      plugin is active (see '-fuse-linker-plugin').
  
       The current implementation of LTO makes no attempt to generate
       bytecode that is portable between different types of hosts.  The
*************** optimizations to be performed is desired
*** 7455,7542 ****
       an older or newer version of GCC.
  
       Link-time optimization does not work well with generation of
!      debugging information.  Combining `-flto' with `-g' is currently
       experimental and expected to produce unexpected results.
  
!      If you specify the optional N, the optimization and code
!      generation done at link time is executed in parallel using N
!      parallel jobs by utilizing an installed `make' program.  The
!      environment variable `MAKE' may be used to override the program
!      used.  The default value for N is 1.
  
!      You can also specify `-flto=jobserver' to use GNU make's job
!      server mode to determine the number of parallel jobs. This is
!      useful when the Makefile calling GCC is already executing in
!      parallel.  You must prepend a `+' to the command recipe in the
!      parent Makefile for this to work.  This option likely only works
!      if `MAKE' is GNU make.
  
! `-flto-partition=ALG'
       Specify the partitioning algorithm used by the link-time optimizer.
!      The value is either `1to1' to specify a partitioning mirroring the
!      original source files or `balanced' to specify partitioning into
!      equally sized chunks (whenever possible) or `max' to create new
!      partition for every symbol where possible.  Specifying `none' as
!      an algorithm disables partitioning and streaming completely.  The
!      default value is `balanced'. While `1to1' can be used as an
!      workaround for various code ordering issues, the `max'
!      partitioning is intended for internal testing only.  The value
!      `one' specifies that exactly one partition should be used while
!      the value `none' bypasses partitioning and executes the link-time
!      optimization step directly from the WPA phase.
  
! `-flto-odr-type-merging'
       Enable streaming of mangled types names of C++ types and their
!      unification at link time.  This increases size of LTO object
!      files, but enables diagnostics about One Definition Rule
!      violations.
  
! `-flto-compression-level=N'
       This option specifies the level of compression used for
       intermediate language written to LTO object files, and is only
!      meaningful in conjunction with LTO mode (`-flto').  Valid values
       are 0 (no compression) to 9 (maximum compression).  Values outside
       this range are clamped to either 0 or 9.  If the option is not
       given, a default balanced compression setting is used.
  
! `-fuse-linker-plugin'
       Enables the use of a linker plugin during link-time optimization.
       This option relies on plugin support in the linker, which is
       available in gold or in GNU ld 2.21 or newer.
  
       This option enables the extraction of object files with GIMPLE
!      bytecode out of library archives. This improves the quality of
       optimization by exposing more code to the link-time optimizer.
       This information specifies what symbols can be accessed externally
       (by non-LTO object or during dynamic linking).  Resulting code
       quality improvements on binaries (and shared libraries that use
!      hidden visibility) are similar to `-fwhole-program'.  See `-flto'
       for a description of the effect of this flag and how to use it.
  
       This option is enabled by default when LTO support in GCC is
       enabled and GCC was configured for use with a linker supporting
       plugins (GNU ld 2.21 or newer or gold).
  
! `-ffat-lto-objects'
!      Fat LTO objects are object files that contain both the
!      intermediate language and the object code. This makes them usable
!      for both LTO linking and normal linking. This option is effective
!      only when compiling with `-flto' and is ignored at link time.
  
!      `-fno-fat-lto-objects' improves compilation time over plain LTO,
!      but requires the complete toolchain to be aware of LTO. It
!      requires a linker with linker plugin support for basic
!      functionality.  Additionally, `nm', `ar' and `ranlib' need to
!      support linker plugins to allow a full-featured build environment
!      (capable of building static libraries etc).  GCC provides the
!      `gcc-ar', `gcc-nm', `gcc-ranlib' wrappers to pass the right options
!      to these tools. With non fat LTO makefiles need to be modified to
!      use them.
  
!      The default is `-fno-fat-lto-objects' on targets with linker plugin
       support.
  
! `-fcompare-elim'
       After register allocation and post-register allocation instruction
       splitting, identify arithmetic instructions that compute processor
       flags similar to a comparison operation based on that arithmetic.
--- 7419,7503 ----
       an older or newer version of GCC.
  
       Link-time optimization does not work well with generation of
!      debugging information.  Combining '-flto' with '-g' is currently
       experimental and expected to produce unexpected results.
  
!      If you specify the optional N, the optimization and code generation
!      done at link time is executed in parallel using N parallel jobs by
!      utilizing an installed 'make' program.  The environment variable
!      'MAKE' may be used to override the program used.  The default value
!      for N is 1.
  
!      You can also specify '-flto=jobserver' to use GNU make's job server
!      mode to determine the number of parallel jobs.  This is useful when
!      the Makefile calling GCC is already executing in parallel.  You
!      must prepend a '+' to the command recipe in the parent Makefile for
!      this to work.  This option likely only works if 'MAKE' is GNU make.
  
! '-flto-partition=ALG'
       Specify the partitioning algorithm used by the link-time optimizer.
!      The value is either '1to1' to specify a partitioning mirroring the
!      original source files or 'balanced' to specify partitioning into
!      equally sized chunks (whenever possible) or 'max' to create new
!      partition for every symbol where possible.  Specifying 'none' as an
!      algorithm disables partitioning and streaming completely.  The
!      default value is 'balanced'.  While '1to1' can be used as an
!      workaround for various code ordering issues, the 'max' partitioning
!      is intended for internal testing only.  The value 'one' specifies
!      that exactly one partition should be used while the value 'none'
!      bypasses partitioning and executes the link-time optimization step
!      directly from the WPA phase.
  
! '-flto-odr-type-merging'
       Enable streaming of mangled types names of C++ types and their
!      unification at link time.  This increases size of LTO object files,
!      but enables diagnostics about One Definition Rule violations.
  
! '-flto-compression-level=N'
       This option specifies the level of compression used for
       intermediate language written to LTO object files, and is only
!      meaningful in conjunction with LTO mode ('-flto').  Valid values
       are 0 (no compression) to 9 (maximum compression).  Values outside
       this range are clamped to either 0 or 9.  If the option is not
       given, a default balanced compression setting is used.
  
! '-fuse-linker-plugin'
       Enables the use of a linker plugin during link-time optimization.
       This option relies on plugin support in the linker, which is
       available in gold or in GNU ld 2.21 or newer.
  
       This option enables the extraction of object files with GIMPLE
!      bytecode out of library archives.  This improves the quality of
       optimization by exposing more code to the link-time optimizer.
       This information specifies what symbols can be accessed externally
       (by non-LTO object or during dynamic linking).  Resulting code
       quality improvements on binaries (and shared libraries that use
!      hidden visibility) are similar to '-fwhole-program'.  See '-flto'
       for a description of the effect of this flag and how to use it.
  
       This option is enabled by default when LTO support in GCC is
       enabled and GCC was configured for use with a linker supporting
       plugins (GNU ld 2.21 or newer or gold).
  
! '-ffat-lto-objects'
!      Fat LTO objects are object files that contain both the intermediate
!      language and the object code.  This makes them usable for both LTO
!      linking and normal linking.  This option is effective only when
!      compiling with '-flto' and is ignored at link time.
  
!      '-fno-fat-lto-objects' improves compilation time over plain LTO,
!      but requires the complete toolchain to be aware of LTO. It requires
!      a linker with linker plugin support for basic functionality.
!      Additionally, 'nm', 'ar' and 'ranlib' need to support linker
!      plugins to allow a full-featured build environment (capable of
!      building static libraries etc).  GCC provides the 'gcc-ar',
!      'gcc-nm', 'gcc-ranlib' wrappers to pass the right options to these
!      tools.  With non fat LTO makefiles need to be modified to use them.
  
!      The default is '-fno-fat-lto-objects' on targets with linker plugin
       support.
  
! '-fcompare-elim'
       After register allocation and post-register allocation instruction
       splitting, identify arithmetic instructions that compute processor
       flags similar to a comparison operation based on that arithmetic.
*************** optimizations to be performed is desired
*** 7546,7612 ****
       represent the comparison operation before register allocation is
       complete.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fcprop-registers'
       After register allocation and post-register allocation instruction
       splitting, perform a copy-propagation pass to try to reduce
       scheduling dependencies and occasionally eliminate the copy.
  
!      Enabled at levels `-O', `-O2', `-O3', `-Os'.
  
! `-fprofile-correction'
       Profiles collected using an instrumented binary for multi-threaded
!      programs may be inconsistent due to missed counter updates. When
       this option is specified, GCC uses heuristics to correct or smooth
!      out such inconsistencies. By default, GCC emits an error message
       when an inconsistent profile is detected.
  
! `-fprofile-use'
! `-fprofile-use=PATH'
       Enable profile feedback-directed optimizations, and the following
       optimizations which are generally profitable only with profile
!      feedback available: `-fbranch-probabilities', `-fvpt',
!      `-funroll-loops', `-fpeel-loops', `-ftracer', `-ftree-vectorize',
!      and `ftree-loop-distribute-patterns'.
  
       Before you can use this option, you must first generate profiling
       information.  *Note Optimize Options::, for information about the
!      `-fprofile-generate' option.
  
       By default, GCC emits an error message if the feedback profiles do
!      not match the source code.  This error can be turned into a
!      warning by using `-Wcoverage-mismatch'.  Note this may result in
!      poorly optimized code.
  
       If PATH is specified, GCC looks at the PATH to find the profile
!      feedback data files. See `-fprofile-dir'.
  
! `-fauto-profile'
! `-fauto-profile=PATH'
       Enable sampling-based feedback-directed optimizations, and the
       following optimizations which are generally profitable only with
!      profile feedback available: `-fbranch-probabilities', `-fvpt',
!      `-funroll-loops', `-fpeel-loops', `-ftracer', `-ftree-vectorize',
!      `-finline-functions', `-fipa-cp', `-fipa-cp-clone',
!      `-fpredictive-commoning', `-funswitch-loops',
!      `-fgcse-after-reload', and `-ftree-loop-distribute-patterns'.
  
       PATH is the name of a file containing AutoFDO profile information.
!      If omitted, it defaults to `fbdata.afdo' in the current directory.
  
       Producing an AutoFDO profile data file requires running your
!      program with the `perf' utility on a supported GNU/Linux target
!      system.  For more information, see `https://perf.wiki.kernel.org/'.
  
       E.g.
            perf record -e br_inst_retired:near_taken -b -o perf.data \
                -- your_program
  
!      Then use the `create_gcov' tool to convert the raw profile data to
       a format that can be used by GCC.  You must also supply the
       unstripped binary for your program to this tool.  See
!      `https://github.com/google/autofdo'.
  
       E.g.
            create_gcov --binary=your_program.unstripped --profile=perf.data \
--- 7507,7573 ----
       represent the comparison operation before register allocation is
       complete.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fcprop-registers'
       After register allocation and post-register allocation instruction
       splitting, perform a copy-propagation pass to try to reduce
       scheduling dependencies and occasionally eliminate the copy.
  
!      Enabled at levels '-O', '-O2', '-O3', '-Os'.
  
! '-fprofile-correction'
       Profiles collected using an instrumented binary for multi-threaded
!      programs may be inconsistent due to missed counter updates.  When
       this option is specified, GCC uses heuristics to correct or smooth
!      out such inconsistencies.  By default, GCC emits an error message
       when an inconsistent profile is detected.
  
! '-fprofile-use'
! '-fprofile-use=PATH'
       Enable profile feedback-directed optimizations, and the following
       optimizations which are generally profitable only with profile
!      feedback available: '-fbranch-probabilities', '-fvpt',
!      '-funroll-loops', '-fpeel-loops', '-ftracer', '-ftree-vectorize',
!      and 'ftree-loop-distribute-patterns'.
  
       Before you can use this option, you must first generate profiling
       information.  *Note Optimize Options::, for information about the
!      '-fprofile-generate' option.
  
       By default, GCC emits an error message if the feedback profiles do
!      not match the source code.  This error can be turned into a warning
!      by using '-Wcoverage-mismatch'.  Note this may result in poorly
!      optimized code.
  
       If PATH is specified, GCC looks at the PATH to find the profile
!      feedback data files.  See '-fprofile-dir'.
  
! '-fauto-profile'
! '-fauto-profile=PATH'
       Enable sampling-based feedback-directed optimizations, and the
       following optimizations which are generally profitable only with
!      profile feedback available: '-fbranch-probabilities', '-fvpt',
!      '-funroll-loops', '-fpeel-loops', '-ftracer', '-ftree-vectorize',
!      '-finline-functions', '-fipa-cp', '-fipa-cp-clone',
!      '-fpredictive-commoning', '-funswitch-loops',
!      '-fgcse-after-reload', and '-ftree-loop-distribute-patterns'.
  
       PATH is the name of a file containing AutoFDO profile information.
!      If omitted, it defaults to 'fbdata.afdo' in the current directory.
  
       Producing an AutoFDO profile data file requires running your
!      program with the 'perf' utility on a supported GNU/Linux target
!      system.  For more information, see <https://perf.wiki.kernel.org/>.
  
       E.g.
            perf record -e br_inst_retired:near_taken -b -o perf.data \
                -- your_program
  
!      Then use the 'create_gcov' tool to convert the raw profile data to
       a format that can be used by GCC.  You must also supply the
       unstripped binary for your program to this tool.  See
!      <https://github.com/google/autofdo>.
  
       E.g.
            create_gcov --binary=your_program.unstripped --profile=perf.data \
*************** optimizations to be performed is desired
*** 7616,7879 ****
  floating-point arithmetic.  These options trade off between speed and
  correctness.  All must be specifically enabled.
  
! `-ffloat-store'
       Do not store floating-point variables in registers, and inhibit
       other options that might change whether a floating-point value is
       taken from a register or memory.
  
       This option prevents undesirable excess precision on machines such
       as the 68000 where the floating registers (of the 68881) keep more
!      precision than a `double' is supposed to have.  Similarly for the
       x86 architecture.  For most programs, the excess precision does
       only good, but a few programs rely on the precise definition of
!      IEEE floating point.  Use `-ffloat-store' for such programs, after
       modifying them to store all pertinent intermediate computations
       into variables.
  
! `-fexcess-precision=STYLE'
       This option allows further control over excess precision on
       machines where floating-point registers have more precision than
!      the IEEE `float' and `double' types and the processor does not
       support operations rounding to those types.  By default,
!      `-fexcess-precision=fast' is in effect; this means that operations
       are carried out in the precision of the registers and that it is
       unpredictable when rounding to the types specified in the source
       code takes place.  When compiling C, if
!      `-fexcess-precision=standard' is specified then excess precision
       follows the rules specified in ISO C99; in particular, both casts
       and assignments cause values to be rounded to their semantic types
!      (whereas `-ffloat-store' only affects assignments).  This option
!      is enabled by default for C if a strict conformance option such as
!      `-std=c99' is used.
  
!      `-fexcess-precision=standard' is not implemented for languages
!      other than C, and has no effect if `-funsafe-math-optimizations'
!      or `-ffast-math' is specified.  On the x86, it also has no effect
!      if `-mfpmath=sse' or `-mfpmath=sse+387' is specified; in the
!      former case, IEEE semantics apply without excess precision, and in
!      the latter, rounding is unpredictable.
  
! `-ffast-math'
!      Sets the options `-fno-math-errno', `-funsafe-math-optimizations',
!      `-ffinite-math-only', `-fno-rounding-math', `-fno-signaling-nans'
!      and `-fcx-limited-range'.
  
!      This option causes the preprocessor macro `__FAST_MATH__' to be
       defined.
  
!      This option is not turned on by any `-O' option besides `-Ofast'
!      since it can result in incorrect output for programs that depend
!      on an exact implementation of IEEE or ISO rules/specifications for
!      math functions. It may, however, yield faster code for programs
       that do not require the guarantees of these specifications.
  
! `-fno-math-errno'
!      Do not set `errno' after calling math functions that are executed
!      with a single instruction, e.g., `sqrt'.  A program that relies on
       IEEE exceptions for math error handling may want to use this flag
       for speed while maintaining IEEE arithmetic compatibility.
  
!      This option is not turned on by any `-O' option since it can
!      result in incorrect output for programs that depend on an exact
       implementation of IEEE or ISO rules/specifications for math
!      functions. It may, however, yield faster code for programs that do
       not require the guarantees of these specifications.
  
!      The default is `-fmath-errno'.
  
!      On Darwin systems, the math library never sets `errno'.  There is
       therefore no reason for the compiler to consider the possibility
!      that it might, and `-fno-math-errno' is the default.
  
- `-funsafe-math-optimizations'
       Allow optimizations for floating-point arithmetic that (a) assume
       that arguments and results are valid and (b) may violate IEEE or
       ANSI standards.  When used at link time, it may include libraries
       or startup files that change the default FPU control word or other
       similar optimizations.
  
!      This option is not turned on by any `-O' option since it can
!      result in incorrect output for programs that depend on an exact
       implementation of IEEE or ISO rules/specifications for math
!      functions. It may, however, yield faster code for programs that do
       not require the guarantees of these specifications.  Enables
!      `-fno-signed-zeros', `-fno-trapping-math', `-fassociative-math'
!      and `-freciprocal-math'.
  
!      The default is `-fno-unsafe-math-optimizations'.
  
- `-fassociative-math'
       Allow re-association of operands in series of floating-point
       operations.  This violates the ISO C and C++ language standard by
!      possibly changing computation result.  NOTE: re-ordering may
!      change the sign of zero as well as ignore NaNs and inhibit or
!      create underflow or overflow (and thus cannot be used on code that
!      relies on rounding behavior like `(x + 2**52) - 2**52'.  May also
!      reorder floating-point comparisons and thus may not be used when
!      ordered comparisons are required.  This option requires that both
!      `-fno-signed-zeros' and `-fno-trapping-math' be in effect.
!      Moreover, it doesn't make much sense with `-frounding-math'. For
       Fortran the option is automatically enabled when both
!      `-fno-signed-zeros' and `-fno-trapping-math' are in effect.
  
!      The default is `-fno-associative-math'.
  
- `-freciprocal-math'
       Allow the reciprocal of a value to be used instead of dividing by
!      the value if this enables optimizations.  For example `x / y' can
!      be replaced with `x * (1/y)', which is useful if `(1/y)' is
!      subject to common subexpression elimination.  Note that this loses
       precision and increases the number of flops operating on the value.
  
!      The default is `-fno-reciprocal-math'.
  
! `-ffinite-math-only'
       Allow optimizations for floating-point arithmetic that assume that
       arguments and results are not NaNs or +-Infs.
  
!      This option is not turned on by any `-O' option since it can
!      result in incorrect output for programs that depend on an exact
       implementation of IEEE or ISO rules/specifications for math
!      functions. It may, however, yield faster code for programs that do
       not require the guarantees of these specifications.
  
!      The default is `-fno-finite-math-only'.
  
! `-fno-signed-zeros'
       Allow optimizations for floating-point arithmetic that ignore the
       signedness of zero.  IEEE arithmetic specifies the behavior of
       distinct +0.0 and -0.0 values, which then prohibits simplification
       of expressions such as x+0.0 or 0.0*x (even with
!      `-ffinite-math-only').  This option implies that the sign of a
!      zero result isn't significant.
  
!      The default is `-fsigned-zeros'.
  
! `-fno-trapping-math'
       Compile code assuming that floating-point operations cannot
!      generate user-visible traps.  These traps include division by
!      zero, overflow, underflow, inexact result and invalid operation.
!      This option requires that `-fno-signaling-nans' be in effect.
!      Setting this option may allow faster code if one relies on
!      "non-stop" IEEE arithmetic, for example.
  
!      This option should never be turned on by any `-O' option since it
!      can result in incorrect output for programs that depend on an
!      exact implementation of IEEE or ISO rules/specifications for math
       functions.
  
!      The default is `-ftrapping-math'.
  
! `-frounding-math'
       Disable transformations and optimizations that assume default
       floating-point rounding behavior.  This is round-to-zero for all
!      floating point to integer conversions, and round-to-nearest for
!      all other arithmetic truncations.  This option should be specified
!      for programs that change the FP rounding mode dynamically, or that
!      may be executed with a non-default rounding mode.  This option
!      disables constant folding of floating-point expressions at compile
!      time (which may be affected by rounding mode) and arithmetic
       transformations that are unsafe in the presence of sign-dependent
       rounding modes.
  
!      The default is `-fno-rounding-math'.
  
       This option is experimental and does not currently guarantee to
       disable all GCC optimizations that are affected by rounding mode.
       Future versions of GCC may provide finer control of this setting
!      using C99's `FENV_ACCESS' pragma.  This command-line option will
!      be used to specify the default state for `FENV_ACCESS'.
  
! `-fsignaling-nans'
       Compile code assuming that IEEE signaling NaNs may generate
       user-visible traps during floating-point operations.  Setting this
       option disables optimizations that may change the number of
       exceptions visible with signaling NaNs.  This option implies
!      `-ftrapping-math'.
  
!      This option causes the preprocessor macro `__SUPPORT_SNAN__' to be
       defined.
  
!      The default is `-fno-signaling-nans'.
  
       This option is experimental and does not currently guarantee to
       disable all GCC optimizations that affect signaling NaN behavior.
  
! `-fsingle-precision-constant'
       Treat floating-point constants as single precision instead of
       implicitly converting them to double-precision constants.
  
! `-fcx-limited-range'
       When enabled, this option states that a range reduction step is not
       needed when performing complex division.  Also, there is no
!      checking whether the result of a complex multiplication or
!      division is `NaN + I*NaN', with an attempt to rescue the situation
!      in that case.  The default is `-fno-cx-limited-range', but is
!      enabled by `-ffast-math'.
  
       This option controls the default setting of the ISO C99
!      `CX_LIMITED_RANGE' pragma.  Nevertheless, the option applies to
!      all languages.
  
! `-fcx-fortran-rules'
       Complex multiplication and division follow Fortran rules.  Range
       reduction is done as part of complex division, but there is no
!      checking whether the result of a complex multiplication or
!      division is `NaN + I*NaN', with an attempt to rescue the situation
!      in that case.
! 
!      The default is `-fno-cx-fortran-rules'.
  
  
   The following options control optimizations that may improve
! performance, but are not enabled by any `-O' options.  This section
  includes experimental options that may produce broken code.
  
! `-fbranch-probabilities'
!      After running a program compiled with `-fprofile-arcs' (*note
       Instrumentation Options::), you can compile it a second time using
!      `-fbranch-probabilities', to improve optimizations based on the
       number of times each branch was taken.  When a program compiled
!      with `-fprofile-arcs' exits, it saves arc execution counts to a
!      file called `SOURCENAME.gcda' for each source file.  The
!      information in this data file is very dependent on the structure
!      of the generated code, so you must use the same source code and
!      the same optimization options for both compilations.
  
!      With `-fbranch-probabilities', GCC puts a `REG_BR_PROB' note on
!      each `JUMP_INSN' and `CALL_INSN'.  These can be used to improve
       optimization.  Currently, they are only used in one place: in
!      `reorg.c', instead of guessing which path a branch is most likely
!      to take, the `REG_BR_PROB' values are used to exactly determine
       which path is taken more often.
  
! `-fprofile-values'
!      If combined with `-fprofile-arcs', it adds code so that some data
       about values of expressions in the program is gathered.
  
!      With `-fbranch-probabilities', it reads back the data gathered
!      from profiling values of expressions for usage in optimizations.
  
!      Enabled with `-fprofile-generate' and `-fprofile-use'.
  
! `-fprofile-reorder-functions'
!      Function reordering based on profile instrumentation collects
!      first time of execution of a function and orders these functions
!      in ascending order.
  
!      Enabled with `-fprofile-use'.
  
! `-fvpt'
!      If combined with `-fprofile-arcs', this option instructs the
       compiler to add code to gather information about values of
       expressions.
  
!      With `-fbranch-probabilities', it reads back the data gathered and
       actually performs the optimizations based on them.  Currently the
       optimizations include specialization of division operations using
       the knowledge about the value of the denominator.
  
! `-frename-registers'
       Attempt to avoid false dependencies in scheduled code by making use
       of registers left over after register allocation.  This
       optimization most benefits processors with lots of registers.
--- 7577,7842 ----
  floating-point arithmetic.  These options trade off between speed and
  correctness.  All must be specifically enabled.
  
! '-ffloat-store'
       Do not store floating-point variables in registers, and inhibit
       other options that might change whether a floating-point value is
       taken from a register or memory.
  
       This option prevents undesirable excess precision on machines such
       as the 68000 where the floating registers (of the 68881) keep more
!      precision than a 'double' is supposed to have.  Similarly for the
       x86 architecture.  For most programs, the excess precision does
       only good, but a few programs rely on the precise definition of
!      IEEE floating point.  Use '-ffloat-store' for such programs, after
       modifying them to store all pertinent intermediate computations
       into variables.
  
! '-fexcess-precision=STYLE'
       This option allows further control over excess precision on
       machines where floating-point registers have more precision than
!      the IEEE 'float' and 'double' types and the processor does not
       support operations rounding to those types.  By default,
!      '-fexcess-precision=fast' is in effect; this means that operations
       are carried out in the precision of the registers and that it is
       unpredictable when rounding to the types specified in the source
       code takes place.  When compiling C, if
!      '-fexcess-precision=standard' is specified then excess precision
       follows the rules specified in ISO C99; in particular, both casts
       and assignments cause values to be rounded to their semantic types
!      (whereas '-ffloat-store' only affects assignments).  This option is
!      enabled by default for C if a strict conformance option such as
!      '-std=c99' is used.
  
!      '-fexcess-precision=standard' is not implemented for languages
!      other than C, and has no effect if '-funsafe-math-optimizations' or
!      '-ffast-math' is specified.  On the x86, it also has no effect if
!      '-mfpmath=sse' or '-mfpmath=sse+387' is specified; in the former
!      case, IEEE semantics apply without excess precision, and in the
!      latter, rounding is unpredictable.
  
! '-ffast-math'
!      Sets the options '-fno-math-errno', '-funsafe-math-optimizations',
!      '-ffinite-math-only', '-fno-rounding-math', '-fno-signaling-nans'
!      and '-fcx-limited-range'.
  
!      This option causes the preprocessor macro '__FAST_MATH__' to be
       defined.
  
!      This option is not turned on by any '-O' option besides '-Ofast'
!      since it can result in incorrect output for programs that depend on
!      an exact implementation of IEEE or ISO rules/specifications for
!      math functions.  It may, however, yield faster code for programs
       that do not require the guarantees of these specifications.
  
! '-fno-math-errno'
!      Do not set 'errno' after calling math functions that are executed
!      with a single instruction, e.g., 'sqrt'.  A program that relies on
       IEEE exceptions for math error handling may want to use this flag
       for speed while maintaining IEEE arithmetic compatibility.
  
!      This option is not turned on by any '-O' option since it can result
!      in incorrect output for programs that depend on an exact
       implementation of IEEE or ISO rules/specifications for math
!      functions.  It may, however, yield faster code for programs that do
       not require the guarantees of these specifications.
  
!      The default is '-fmath-errno'.
  
!      On Darwin systems, the math library never sets 'errno'.  There is
       therefore no reason for the compiler to consider the possibility
!      that it might, and '-fno-math-errno' is the default.
! 
! '-funsafe-math-optimizations'
  
       Allow optimizations for floating-point arithmetic that (a) assume
       that arguments and results are valid and (b) may violate IEEE or
       ANSI standards.  When used at link time, it may include libraries
       or startup files that change the default FPU control word or other
       similar optimizations.
  
!      This option is not turned on by any '-O' option since it can result
!      in incorrect output for programs that depend on an exact
       implementation of IEEE or ISO rules/specifications for math
!      functions.  It may, however, yield faster code for programs that do
       not require the guarantees of these specifications.  Enables
!      '-fno-signed-zeros', '-fno-trapping-math', '-fassociative-math' and
!      '-freciprocal-math'.
  
!      The default is '-fno-unsafe-math-optimizations'.
! 
! '-fassociative-math'
  
       Allow re-association of operands in series of floating-point
       operations.  This violates the ISO C and C++ language standard by
!      possibly changing computation result.  NOTE: re-ordering may change
!      the sign of zero as well as ignore NaNs and inhibit or create
!      underflow or overflow (and thus cannot be used on code that relies
!      on rounding behavior like '(x + 2**52) - 2**52'.  May also reorder
!      floating-point comparisons and thus may not be used when ordered
!      comparisons are required.  This option requires that both
!      '-fno-signed-zeros' and '-fno-trapping-math' be in effect.
!      Moreover, it doesn't make much sense with '-frounding-math'.  For
       Fortran the option is automatically enabled when both
!      '-fno-signed-zeros' and '-fno-trapping-math' are in effect.
  
!      The default is '-fno-associative-math'.
! 
! '-freciprocal-math'
  
       Allow the reciprocal of a value to be used instead of dividing by
!      the value if this enables optimizations.  For example 'x / y' can
!      be replaced with 'x * (1/y)', which is useful if '(1/y)' is subject
!      to common subexpression elimination.  Note that this loses
       precision and increases the number of flops operating on the value.
  
!      The default is '-fno-reciprocal-math'.
  
! '-ffinite-math-only'
       Allow optimizations for floating-point arithmetic that assume that
       arguments and results are not NaNs or +-Infs.
  
!      This option is not turned on by any '-O' option since it can result
!      in incorrect output for programs that depend on an exact
       implementation of IEEE or ISO rules/specifications for math
!      functions.  It may, however, yield faster code for programs that do
       not require the guarantees of these specifications.
  
!      The default is '-fno-finite-math-only'.
  
! '-fno-signed-zeros'
       Allow optimizations for floating-point arithmetic that ignore the
       signedness of zero.  IEEE arithmetic specifies the behavior of
       distinct +0.0 and -0.0 values, which then prohibits simplification
       of expressions such as x+0.0 or 0.0*x (even with
!      '-ffinite-math-only').  This option implies that the sign of a zero
!      result isn't significant.
  
!      The default is '-fsigned-zeros'.
  
! '-fno-trapping-math'
       Compile code assuming that floating-point operations cannot
!      generate user-visible traps.  These traps include division by zero,
!      overflow, underflow, inexact result and invalid operation.  This
!      option requires that '-fno-signaling-nans' be in effect.  Setting
!      this option may allow faster code if one relies on "non-stop" IEEE
!      arithmetic, for example.
  
!      This option should never be turned on by any '-O' option since it
!      can result in incorrect output for programs that depend on an exact
!      implementation of IEEE or ISO rules/specifications for math
       functions.
  
!      The default is '-ftrapping-math'.
  
! '-frounding-math'
       Disable transformations and optimizations that assume default
       floating-point rounding behavior.  This is round-to-zero for all
!      floating point to integer conversions, and round-to-nearest for all
!      other arithmetic truncations.  This option should be specified for
!      programs that change the FP rounding mode dynamically, or that may
!      be executed with a non-default rounding mode.  This option disables
!      constant folding of floating-point expressions at compile time
!      (which may be affected by rounding mode) and arithmetic
       transformations that are unsafe in the presence of sign-dependent
       rounding modes.
  
!      The default is '-fno-rounding-math'.
  
       This option is experimental and does not currently guarantee to
       disable all GCC optimizations that are affected by rounding mode.
       Future versions of GCC may provide finer control of this setting
!      using C99's 'FENV_ACCESS' pragma.  This command-line option will be
!      used to specify the default state for 'FENV_ACCESS'.
  
! '-fsignaling-nans'
       Compile code assuming that IEEE signaling NaNs may generate
       user-visible traps during floating-point operations.  Setting this
       option disables optimizations that may change the number of
       exceptions visible with signaling NaNs.  This option implies
!      '-ftrapping-math'.
  
!      This option causes the preprocessor macro '__SUPPORT_SNAN__' to be
       defined.
  
!      The default is '-fno-signaling-nans'.
  
       This option is experimental and does not currently guarantee to
       disable all GCC optimizations that affect signaling NaN behavior.
  
! '-fsingle-precision-constant'
       Treat floating-point constants as single precision instead of
       implicitly converting them to double-precision constants.
  
! '-fcx-limited-range'
       When enabled, this option states that a range reduction step is not
       needed when performing complex division.  Also, there is no
!      checking whether the result of a complex multiplication or division
!      is 'NaN + I*NaN', with an attempt to rescue the situation in that
!      case.  The default is '-fno-cx-limited-range', but is enabled by
!      '-ffast-math'.
  
       This option controls the default setting of the ISO C99
!      'CX_LIMITED_RANGE' pragma.  Nevertheless, the option applies to all
!      languages.
  
! '-fcx-fortran-rules'
       Complex multiplication and division follow Fortran rules.  Range
       reduction is done as part of complex division, but there is no
!      checking whether the result of a complex multiplication or division
!      is 'NaN + I*NaN', with an attempt to rescue the situation in that
!      case.
  
+      The default is '-fno-cx-fortran-rules'.
  
   The following options control optimizations that may improve
! performance, but are not enabled by any '-O' options.  This section
  includes experimental options that may produce broken code.
  
! '-fbranch-probabilities'
!      After running a program compiled with '-fprofile-arcs' (*note
       Instrumentation Options::), you can compile it a second time using
!      '-fbranch-probabilities', to improve optimizations based on the
       number of times each branch was taken.  When a program compiled
!      with '-fprofile-arcs' exits, it saves arc execution counts to a
!      file called 'SOURCENAME.gcda' for each source file.  The
!      information in this data file is very dependent on the structure of
!      the generated code, so you must use the same source code and the
!      same optimization options for both compilations.
  
!      With '-fbranch-probabilities', GCC puts a 'REG_BR_PROB' note on
!      each 'JUMP_INSN' and 'CALL_INSN'.  These can be used to improve
       optimization.  Currently, they are only used in one place: in
!      'reorg.c', instead of guessing which path a branch is most likely
!      to take, the 'REG_BR_PROB' values are used to exactly determine
       which path is taken more often.
  
! '-fprofile-values'
!      If combined with '-fprofile-arcs', it adds code so that some data
       about values of expressions in the program is gathered.
  
!      With '-fbranch-probabilities', it reads back the data gathered from
!      profiling values of expressions for usage in optimizations.
  
!      Enabled with '-fprofile-generate' and '-fprofile-use'.
  
! '-fprofile-reorder-functions'
!      Function reordering based on profile instrumentation collects first
!      time of execution of a function and orders these functions in
!      ascending order.
  
!      Enabled with '-fprofile-use'.
  
! '-fvpt'
!      If combined with '-fprofile-arcs', this option instructs the
       compiler to add code to gather information about values of
       expressions.
  
!      With '-fbranch-probabilities', it reads back the data gathered and
       actually performs the optimizations based on them.  Currently the
       optimizations include specialization of division operations using
       the knowledge about the value of the denominator.
  
! '-frename-registers'
       Attempt to avoid false dependencies in scheduled code by making use
       of registers left over after register allocation.  This
       optimization most benefits processors with lots of registers.
*************** includes experimental options that may p
*** 7881,7938 ****
       however, it can make debugging impossible, since variables no
       longer stay in a "home register".
  
!      Enabled by default with `-funroll-loops' and `-fpeel-loops'.
  
! `-fschedule-fusion'
       Performs a target dependent pass over the instruction stream to
       schedule instructions of same type together because target machine
       can execute them more efficiently if they are adjacent to each
       other in the instruction flow.
  
!      Enabled at levels `-O2', `-O3', `-Os'.
  
! `-ftracer'
       Perform tail duplication to enlarge superblock size.  This
!      transformation simplifies the control flow of the function
!      allowing other optimizations to do a better job.
  
!      Enabled with `-fprofile-use'.
  
! `-funroll-loops'
       Unroll loops whose number of iterations can be determined at
!      compile time or upon entry to the loop.  `-funroll-loops' implies
!      `-frerun-cse-after-loop', `-fweb' and `-frename-registers'.  It
!      also turns on complete loop peeling (i.e. complete removal of
!      loops with a small constant number of iterations).  This option
!      makes code larger, and may or may not make it run faster.
  
!      Enabled with `-fprofile-use'.
  
! `-funroll-all-loops'
       Unroll all loops, even if their number of iterations is uncertain
       when the loop is entered.  This usually makes programs run more
!      slowly.  `-funroll-all-loops' implies the same options as
!      `-funroll-loops'.
  
! `-fpeel-loops'
       Peels loops for which there is enough information that they do not
       roll much (from profile feedback).  It also turns on complete loop
       peeling (i.e. complete removal of loops with small constant number
       of iterations).
  
!      Enabled with `-fprofile-use'.
  
! `-fmove-loop-invariants'
       Enables the loop invariant motion pass in the RTL loop optimizer.
!      Enabled at level `-O1'
  
! `-funswitch-loops'
       Move branches with loop invariant conditions out of the loop, with
       duplicates of the loop on both branches (modified according to
       result of the condition).
  
! `-ffunction-sections'
! `-fdata-sections'
       Place each function or data item into its own section in the output
       file if the target supports arbitrary sections.  The name of the
       function or the name of the data item determines the section's name
--- 7844,7901 ----
       however, it can make debugging impossible, since variables no
       longer stay in a "home register".
  
!      Enabled by default with '-funroll-loops' and '-fpeel-loops'.
  
! '-fschedule-fusion'
       Performs a target dependent pass over the instruction stream to
       schedule instructions of same type together because target machine
       can execute them more efficiently if they are adjacent to each
       other in the instruction flow.
  
!      Enabled at levels '-O2', '-O3', '-Os'.
  
! '-ftracer'
       Perform tail duplication to enlarge superblock size.  This
!      transformation simplifies the control flow of the function allowing
!      other optimizations to do a better job.
  
!      Enabled with '-fprofile-use'.
  
! '-funroll-loops'
       Unroll loops whose number of iterations can be determined at
!      compile time or upon entry to the loop.  '-funroll-loops' implies
!      '-frerun-cse-after-loop', '-fweb' and '-frename-registers'.  It
!      also turns on complete loop peeling (i.e. complete removal of loops
!      with a small constant number of iterations).  This option makes
!      code larger, and may or may not make it run faster.
  
!      Enabled with '-fprofile-use'.
  
! '-funroll-all-loops'
       Unroll all loops, even if their number of iterations is uncertain
       when the loop is entered.  This usually makes programs run more
!      slowly.  '-funroll-all-loops' implies the same options as
!      '-funroll-loops'.
  
! '-fpeel-loops'
       Peels loops for which there is enough information that they do not
       roll much (from profile feedback).  It also turns on complete loop
       peeling (i.e. complete removal of loops with small constant number
       of iterations).
  
!      Enabled with '-fprofile-use'.
  
! '-fmove-loop-invariants'
       Enables the loop invariant motion pass in the RTL loop optimizer.
!      Enabled at level '-O1'
  
! '-funswitch-loops'
       Move branches with loop invariant conditions out of the loop, with
       duplicates of the loop on both branches (modified according to
       result of the condition).
  
! '-ffunction-sections'
! '-fdata-sections'
       Place each function or data item into its own section in the output
       file if the target supports arbitrary sections.  The name of the
       function or the name of the data item determines the section's name
*************** includes experimental options that may p
*** 7946,7988 ****
  
       Only use these options when there are significant benefits from
       doing so.  When you specify these options, the assembler and linker
!      create larger object and executable files and are also slower.
!      You cannot use `gprof' on all systems if you specify this option,
!      and you may have problems with debugging if you specify both this
!      option and `-g'.
  
! `-fbranch-target-load-optimize'
       Perform branch target register load optimization before prologue /
       epilogue threading.  The use of target registers can typically be
       exposed only during reload, thus hoisting loads out of loops and
       doing inter-block scheduling needs a separate optimization pass.
  
! `-fbranch-target-load-optimize2'
       Perform branch target register load optimization after prologue /
       epilogue threading.
  
! `-fbtr-bb-exclusive'
       When performing branch target register load optimization, don't
       reuse branch target registers within any basic block.
  
! `-fstdarg-opt'
       Optimize the prologue of variadic argument functions with respect
       to usage of those arguments.
  
! `-fsection-anchors'
       Try to reduce the number of symbolic address calculations by using
       shared "anchor" symbols to address nearby objects.  This
!      transformation can help to reduce the number of GOT entries and
!      GOT accesses on some targets.
  
!      For example, the implementation of the following function `foo':
  
            static int a, b, c;
            int foo (void) { return a + b + c; }
  
       usually calculates the addresses of all three variables, but if you
!      compile it with `-fsection-anchors', it accesses the variables
!      from a common anchor point instead.  The effect is similar to the
       following pseudocode (which isn't valid C):
  
            int foo (void)
--- 7909,7951 ----
  
       Only use these options when there are significant benefits from
       doing so.  When you specify these options, the assembler and linker
!      create larger object and executable files and are also slower.  You
!      cannot use 'gprof' on all systems if you specify this option, and
!      you may have problems with debugging if you specify both this
!      option and '-g'.
  
! '-fbranch-target-load-optimize'
       Perform branch target register load optimization before prologue /
       epilogue threading.  The use of target registers can typically be
       exposed only during reload, thus hoisting loads out of loops and
       doing inter-block scheduling needs a separate optimization pass.
  
! '-fbranch-target-load-optimize2'
       Perform branch target register load optimization after prologue /
       epilogue threading.
  
! '-fbtr-bb-exclusive'
       When performing branch target register load optimization, don't
       reuse branch target registers within any basic block.
  
! '-fstdarg-opt'
       Optimize the prologue of variadic argument functions with respect
       to usage of those arguments.
  
! '-fsection-anchors'
       Try to reduce the number of symbolic address calculations by using
       shared "anchor" symbols to address nearby objects.  This
!      transformation can help to reduce the number of GOT entries and GOT
!      accesses on some targets.
  
!      For example, the implementation of the following function 'foo':
  
            static int a, b, c;
            int foo (void) { return a + b + c; }
  
       usually calculates the addresses of all three variables, but if you
!      compile it with '-fsection-anchors', it accesses the variables from
!      a common anchor point instead.  The effect is similar to the
       following pseudocode (which isn't valid C):
  
            int foo (void)
*************** includes experimental options that may p
*** 7993,8004 ****
  
       Not all targets support this option.
  
! `--param NAME=VALUE'
       In some places, GCC uses various constants to control the amount of
       optimization that is done.  For example, GCC does not inline
       functions that contain more than a certain number of instructions.
       You can control some of these constants on the command line using
!      the `--param' option.
  
       The names of specific parameters, and the meaning of the values,
       are tied to the internals of the compiler, and are subject to
--- 7956,7967 ----
  
       Not all targets support this option.
  
! '--param NAME=VALUE'
       In some places, GCC uses various constants to control the amount of
       optimization that is done.  For example, GCC does not inline
       functions that contain more than a certain number of instructions.
       You can control some of these constants on the command line using
!      the '--param' option.
  
       The names of specific parameters, and the meaning of the values,
       are tied to the internals of the compiler, and are subject to
*************** includes experimental options that may p
*** 8007,8018 ****
       In each case, the VALUE is an integer.  The allowable choices for
       NAME are:
  
!     `predictable-branch-outcome'
            When branch is predicted to be taken with probability lower
            than this threshold (in percent), then it is considered well
!           predictable. The default is 10.
  
!     `max-rtl-if-conversion-insns'
            RTL if-conversion tries to remove conditional branches around
            a block and replace them with conditionally executed
            instructions.  This parameter gives the maximum number of
--- 7970,7981 ----
       In each case, the VALUE is an integer.  The allowable choices for
       NAME are:
  
!      'predictable-branch-outcome'
            When branch is predicted to be taken with probability lower
            than this threshold (in percent), then it is considered well
!           predictable.  The default is 10.
  
!      'max-rtl-if-conversion-insns'
            RTL if-conversion tries to remove conditional branches around
            a block and replace them with conditionally executed
            instructions.  This parameter gives the maximum number of
*************** includes experimental options that may p
*** 8021,8047 ****
            also use other heuristics to decide whether if-conversion is
            likely to be profitable.
  
!     `max-crossjump-edges'
            The maximum number of incoming edges to consider for
!           cross-jumping.  The algorithm used by `-fcrossjumping' is
            O(N^2) in the number of edges incoming to each block.
            Increasing values mean more aggressive optimization, making
            the compilation time increase with probably small improvement
            in executable size.
  
!     `min-crossjump-insns'
!           The minimum number of instructions that must be matched at
!           the end of two blocks before cross-jumping is performed on
!           them.  This value is ignored in the case where all
!           instructions in the block being cross-jumped from are
!           matched.  The default value is 5.
  
!     `max-grow-copy-bb-insns'
            The maximum code size expansion factor when copying basic
            blocks instead of jumping.  The expansion is relative to a
            jump instruction.  The default value is 8.
  
!     `max-goto-duplication-insns'
            The maximum number of instructions to duplicate to a block
            that jumps to a computed goto.  To avoid O(N^2) behavior in a
            number of passes, GCC factors computed gotos early in the
--- 7984,8010 ----
            also use other heuristics to decide whether if-conversion is
            likely to be profitable.
  
!      'max-crossjump-edges'
            The maximum number of incoming edges to consider for
!           cross-jumping.  The algorithm used by '-fcrossjumping' is
            O(N^2) in the number of edges incoming to each block.
            Increasing values mean more aggressive optimization, making
            the compilation time increase with probably small improvement
            in executable size.
  
!      'min-crossjump-insns'
!           The minimum number of instructions that must be matched at the
!           end of two blocks before cross-jumping is performed on them.
!           This value is ignored in the case where all instructions in
!           the block being cross-jumped from are matched.  The default
!           value is 5.
  
!      'max-grow-copy-bb-insns'
            The maximum code size expansion factor when copying basic
            blocks instead of jumping.  The expansion is relative to a
            jump instruction.  The default value is 8.
  
!      'max-goto-duplication-insns'
            The maximum number of instructions to duplicate to a block
            that jumps to a computed goto.  To avoid O(N^2) behavior in a
            number of passes, GCC factors computed gotos early in the
*************** includes experimental options that may p
*** 8050,8056 ****
            than max-goto-duplication-insns are unfactored.  The default
            value is 8.
  
!     `max-delay-slot-insn-search'
            The maximum number of instructions to consider when looking
            for an instruction to fill a delay slot.  If more than this
            arbitrary number of instructions are searched, the time
--- 8013,8019 ----
            than max-goto-duplication-insns are unfactored.  The default
            value is 8.
  
!      'max-delay-slot-insn-search'
            The maximum number of instructions to consider when looking
            for an instruction to fill a delay slot.  If more than this
            arbitrary number of instructions are searched, the time
*************** includes experimental options that may p
*** 8059,8247 ****
            optimization, making the compilation time increase with
            probably small improvement in execution time.
  
!     `max-delay-slot-live-search'
            When trying to fill delay slots, the maximum number of
!           instructions to consider when searching for a block with
!           valid live register information.  Increasing this arbitrarily
!           chosen value means more aggressive optimization, increasing
!           the compilation time.  This parameter should be removed when
!           the delay slot code is rewritten to maintain the control-flow
            graph.
  
!     `max-gcse-memory'
!           The approximate maximum amount of memory that can be
!           allocated in order to perform the global common subexpression
            elimination optimization.  If more memory than specified is
            required, the optimization is not done.
  
!     `max-gcse-insertion-ratio'
            If the ratio of expression insertions to deletions is larger
            than this value for any expression, then RTL PRE inserts or
            removes the expression and thus leaves partially redundant
            computations in the instruction stream.  The default value is
            20.
  
!     `max-pending-list-length'
            The maximum number of pending dependencies scheduling allows
            before flushing the current state and starting over.  Large
            functions with few branches or calls can create excessively
            large lists which needlessly consume memory and resources.
  
!     `max-modulo-backtrack-attempts'
            The maximum number of backtrack attempts the scheduler should
            make when modulo scheduling a loop.  Larger values can
            exponentially increase compilation time.
  
!     `max-inline-insns-single'
!           Several parameters control the tree inliner used in GCC.
!           This number sets the maximum number of instructions (counted
!           in GCC's internal representation) in a single function that
!           the tree inliner considers for inlining.  This only affects
            functions declared inline and methods implemented in a class
            declaration (C++).  The default value is 400.
  
!     `max-inline-insns-auto'
!           When you use `-finline-functions' (included in `-O3'), a lot
            of functions that would otherwise not be considered for
            inlining by the compiler are investigated.  To those
            functions, a different (more restrictive) limit compared to
            functions declared inline can be applied.  The default value
            is 40.
  
!     `inline-min-speedup'
            When estimated performance improvement of caller + callee
            runtime exceeds this threshold (in precent), the function can
!           be inlined regardless the limit on `--param
!           max-inline-insns-single' and `--param max-inline-insns-auto'.
  
!     `large-function-insns'
            The limit specifying really large functions.  For functions
!           larger than this limit after inlining, inlining is
!           constrained by `--param large-function-growth'.  This
!           parameter is useful primarily to avoid extreme compilation
!           time caused by non-linear algorithms used by the back end.
!           The default value is 2700.
  
!     `large-function-growth'
            Specifies maximal growth of large function caused by inlining
            in percents.  The default value is 100 which limits large
            function growth to 2.0 times the original size.
  
!     `large-unit-insns'
!           The limit specifying large translation unit.  Growth caused
!           by inlining of units larger than this limit is limited by
!           `--param inline-unit-growth'.  For small units this might be
            too tight.  For example, consider a unit consisting of
!           function A that is inline and B that just calls A three
!           times.  If B is small relative to A, the growth of unit is
!           300\% and yet such inlining is very sane.  For very large
!           units consisting of small inlineable functions, however, the
!           overall unit growth limit is needed to avoid exponential
!           explosion of code size.  Thus for smaller units, the size is
!           increased to `--param large-unit-insns' before applying
!           `--param inline-unit-growth'.  The default is 10000.
  
!     `inline-unit-growth'
            Specifies maximal overall growth of the compilation unit
!           caused by inlining.  The default value is 20 which limits
!           unit growth to 1.2 times the original size. Cold functions
!           (either marked cold via an attribute or by profile feedback)
!           are not accounted into the unit size.
  
!     `ipcp-unit-growth'
            Specifies maximal overall growth of the compilation unit
            caused by interprocedural constant propagation.  The default
!           value is 10 which limits unit growth to 1.1 times the
!           original size.
  
!     `large-stack-frame'
            The limit specifying large stack frames.  While inlining the
!           algorithm is trying to not grow past this limit too much.
!           The default value is 256 bytes.
  
!     `large-stack-frame-growth'
            Specifies maximal growth of large stack frames caused by
            inlining in percents.  The default value is 1000 which limits
            large stack frame growth to 11 times the original size.
  
!     `max-inline-insns-recursive'
!     `max-inline-insns-recursive-auto'
            Specifies the maximum number of instructions an out-of-line
            copy of a self-recursive inline function can grow into by
            performing recursive inlining.
  
!           `--param max-inline-insns-recursive' applies to functions
!           declared inline.  For functions not declared inline,
!           recursive inlining happens only when `-finline-functions'
!           (included in `-O3') is enabled; `--param
!           max-inline-insns-recursive-auto' applies instead.  The
!           default value is 450.
  
!     `max-inline-recursive-depth'
!     `max-inline-recursive-depth-auto'
            Specifies the maximum recursion depth used for recursive
            inlining.
  
!           `--param max-inline-recursive-depth' applies to functions
!           declared inline.  For functions not declared inline,
!           recursive inlining happens only when `-finline-functions'
!           (included in `-O3') is enabled; `--param
!           max-inline-recursive-depth-auto' applies instead.  The
!           default value is 8.
  
!     `min-inline-recursive-probability'
!           Recursive inlining is profitable only for function having
!           deep recursion in average and can hurt for function having
!           little recursion depth by increasing the prologue size or
!           complexity of function body to other optimizers.
  
!           When profile feedback is available (see `-fprofile-generate')
            the actual recursion depth can be guessed from probability
            that function recurses via a given call expression.  This
            parameter limits inlining only to call expressions whose
            probability exceeds the given threshold (in percents).  The
            default value is 10.
  
!     `early-inlining-insns'
            Specify growth that the early inliner can make.  In effect it
            increases the amount of inlining for code having a large
            abstraction penalty.  The default value is 14.
  
!     `max-early-inliner-iterations'
            Limit of iterations of the early inliner.  This basically
            bounds the number of nested indirect calls the early inliner
            can resolve.  Deeper chains are still handled by late
            inlining.
  
!     `comdat-sharing-probability'
            Probability (in percent) that C++ inline function with comdat
            visibility are shared across multiple compilation units.  The
            default value is 20.
  
!     `profile-func-internal-id'
            A parameter to control whether to use function internal id in
!           profile database lookup. If the value is 0, the compiler uses
            an id that is based on function assembler name and filename,
            which makes old profile data more tolerant to source changes
            such as function reordering etc.  The default value is 0.
  
!     `min-vect-loop-bound'
            The minimum number of iterations under which loops are not
!           vectorized when `-ftree-vectorize' is used.  The number of
            iterations after vectorization needs to be greater than the
            value specified by this option to allow vectorization.  The
            default value is 0.
  
!     `gcse-cost-distance-ratio'
            Scaling factor in calculation of maximum distance an
            expression can be moved by GCSE optimizations.  This is
            currently supported only in the code hoisting pass.  The
            bigger the ratio, the more aggressive code hoisting is with
            simple expressions, i.e., the expressions that have cost less
!           than `gcse-unrestricted-cost'.  Specifying 0 disables
!           hoisting of simple expressions.  The default value is 10.
  
!     `gcse-unrestricted-cost'
            Cost, roughly measured as the cost of a single typical machine
            instruction, at which GCSE optimizations do not constrain the
            distance an expression can travel.  This is currently
--- 8022,8208 ----
            optimization, making the compilation time increase with
            probably small improvement in execution time.
  
!      'max-delay-slot-live-search'
            When trying to fill delay slots, the maximum number of
!           instructions to consider when searching for a block with valid
!           live register information.  Increasing this arbitrarily chosen
!           value means more aggressive optimization, increasing the
!           compilation time.  This parameter should be removed when the
!           delay slot code is rewritten to maintain the control-flow
            graph.
  
!      'max-gcse-memory'
!           The approximate maximum amount of memory that can be allocated
!           in order to perform the global common subexpression
            elimination optimization.  If more memory than specified is
            required, the optimization is not done.
  
!      'max-gcse-insertion-ratio'
            If the ratio of expression insertions to deletions is larger
            than this value for any expression, then RTL PRE inserts or
            removes the expression and thus leaves partially redundant
            computations in the instruction stream.  The default value is
            20.
  
!      'max-pending-list-length'
            The maximum number of pending dependencies scheduling allows
            before flushing the current state and starting over.  Large
            functions with few branches or calls can create excessively
            large lists which needlessly consume memory and resources.
  
!      'max-modulo-backtrack-attempts'
            The maximum number of backtrack attempts the scheduler should
            make when modulo scheduling a loop.  Larger values can
            exponentially increase compilation time.
  
!      'max-inline-insns-single'
!           Several parameters control the tree inliner used in GCC.  This
!           number sets the maximum number of instructions (counted in
!           GCC's internal representation) in a single function that the
!           tree inliner considers for inlining.  This only affects
            functions declared inline and methods implemented in a class
            declaration (C++).  The default value is 400.
  
!      'max-inline-insns-auto'
!           When you use '-finline-functions' (included in '-O3'), a lot
            of functions that would otherwise not be considered for
            inlining by the compiler are investigated.  To those
            functions, a different (more restrictive) limit compared to
            functions declared inline can be applied.  The default value
            is 40.
  
!      'inline-min-speedup'
            When estimated performance improvement of caller + callee
            runtime exceeds this threshold (in precent), the function can
!           be inlined regardless the limit on '--param
!           max-inline-insns-single' and '--param max-inline-insns-auto'.
  
!      'large-function-insns'
            The limit specifying really large functions.  For functions
!           larger than this limit after inlining, inlining is constrained
!           by '--param large-function-growth'.  This parameter is useful
!           primarily to avoid extreme compilation time caused by
!           non-linear algorithms used by the back end.  The default value
!           is 2700.
  
!      'large-function-growth'
            Specifies maximal growth of large function caused by inlining
            in percents.  The default value is 100 which limits large
            function growth to 2.0 times the original size.
  
!      'large-unit-insns'
!           The limit specifying large translation unit.  Growth caused by
!           inlining of units larger than this limit is limited by
!           '--param inline-unit-growth'.  For small units this might be
            too tight.  For example, consider a unit consisting of
!           function A that is inline and B that just calls A three times.
!           If B is small relative to A, the growth of unit is 300\% and
!           yet such inlining is very sane.  For very large units
!           consisting of small inlineable functions, however, the overall
!           unit growth limit is needed to avoid exponential explosion of
!           code size.  Thus for smaller units, the size is increased to
!           '--param large-unit-insns' before applying '--param
!           inline-unit-growth'.  The default is 10000.
  
!      'inline-unit-growth'
            Specifies maximal overall growth of the compilation unit
!           caused by inlining.  The default value is 20 which limits unit
!           growth to 1.2 times the original size.  Cold functions (either
!           marked cold via an attribute or by profile feedback) are not
!           accounted into the unit size.
  
!      'ipcp-unit-growth'
            Specifies maximal overall growth of the compilation unit
            caused by interprocedural constant propagation.  The default
!           value is 10 which limits unit growth to 1.1 times the original
!           size.
  
!      'large-stack-frame'
            The limit specifying large stack frames.  While inlining the
!           algorithm is trying to not grow past this limit too much.  The
!           default value is 256 bytes.
  
!      'large-stack-frame-growth'
            Specifies maximal growth of large stack frames caused by
            inlining in percents.  The default value is 1000 which limits
            large stack frame growth to 11 times the original size.
  
!      'max-inline-insns-recursive'
!      'max-inline-insns-recursive-auto'
            Specifies the maximum number of instructions an out-of-line
            copy of a self-recursive inline function can grow into by
            performing recursive inlining.
  
!           '--param max-inline-insns-recursive' applies to functions
!           declared inline.  For functions not declared inline, recursive
!           inlining happens only when '-finline-functions' (included in
!           '-O3') is enabled; '--param max-inline-insns-recursive-auto'
!           applies instead.  The default value is 450.
  
!      'max-inline-recursive-depth'
!      'max-inline-recursive-depth-auto'
            Specifies the maximum recursion depth used for recursive
            inlining.
  
!           '--param max-inline-recursive-depth' applies to functions
!           declared inline.  For functions not declared inline, recursive
!           inlining happens only when '-finline-functions' (included in
!           '-O3') is enabled; '--param max-inline-recursive-depth-auto'
!           applies instead.  The default value is 8.
  
!      'min-inline-recursive-probability'
!           Recursive inlining is profitable only for function having deep
!           recursion in average and can hurt for function having little
!           recursion depth by increasing the prologue size or complexity
!           of function body to other optimizers.
  
!           When profile feedback is available (see '-fprofile-generate')
            the actual recursion depth can be guessed from probability
            that function recurses via a given call expression.  This
            parameter limits inlining only to call expressions whose
            probability exceeds the given threshold (in percents).  The
            default value is 10.
  
!      'early-inlining-insns'
            Specify growth that the early inliner can make.  In effect it
            increases the amount of inlining for code having a large
            abstraction penalty.  The default value is 14.
  
!      'max-early-inliner-iterations'
            Limit of iterations of the early inliner.  This basically
            bounds the number of nested indirect calls the early inliner
            can resolve.  Deeper chains are still handled by late
            inlining.
  
!      'comdat-sharing-probability'
            Probability (in percent) that C++ inline function with comdat
            visibility are shared across multiple compilation units.  The
            default value is 20.
  
!      'profile-func-internal-id'
            A parameter to control whether to use function internal id in
!           profile database lookup.  If the value is 0, the compiler uses
            an id that is based on function assembler name and filename,
            which makes old profile data more tolerant to source changes
            such as function reordering etc.  The default value is 0.
  
!      'min-vect-loop-bound'
            The minimum number of iterations under which loops are not
!           vectorized when '-ftree-vectorize' is used.  The number of
            iterations after vectorization needs to be greater than the
            value specified by this option to allow vectorization.  The
            default value is 0.
  
!      'gcse-cost-distance-ratio'
            Scaling factor in calculation of maximum distance an
            expression can be moved by GCSE optimizations.  This is
            currently supported only in the code hoisting pass.  The
            bigger the ratio, the more aggressive code hoisting is with
            simple expressions, i.e., the expressions that have cost less
!           than 'gcse-unrestricted-cost'.  Specifying 0 disables hoisting
!           of simple expressions.  The default value is 10.
  
!      'gcse-unrestricted-cost'
            Cost, roughly measured as the cost of a single typical machine
            instruction, at which GCSE optimizations do not constrain the
            distance an expression can travel.  This is currently
*************** includes experimental options that may p
*** 8250,8371 ****
            allows all expressions to travel unrestricted distances.  The
            default value is 3.
  
!     `max-hoist-depth'
            The depth of search in the dominator tree for expressions to
            hoist.  This is used to avoid quadratic behavior in hoisting
            algorithm.  The value of 0 does not limit on the search, but
            may slow down compilation of huge functions.  The default
            value is 30.
  
!     `max-tail-merge-comparisons'
            The maximum amount of similar bbs to compare a bb with.  This
!           is used to avoid quadratic behavior in tree tail merging.
!           The default value is 10.
  
!     `max-tail-merge-iterations'
            The maximum amount of iterations of the pass over the
!           function.  This is used to limit compilation time in tree
!           tail merging.  The default value is 2.
  
!     `max-unrolled-insns'
            The maximum number of instructions that a loop may have to be
            unrolled.  If a loop is unrolled, this parameter also
            determines how many times the loop code is unrolled.
  
!     `max-average-unrolled-insns'
            The maximum number of instructions biased by probabilities of
            their execution that a loop may have to be unrolled.  If a
            loop is unrolled, this parameter also determines how many
            times the loop code is unrolled.
  
!     `max-unroll-times'
            The maximum number of unrollings of a single loop.
  
!     `max-peeled-insns'
            The maximum number of instructions that a loop may have to be
            peeled.  If a loop is peeled, this parameter also determines
            how many times the loop code is peeled.
  
!     `max-peel-times'
            The maximum number of peelings of a single loop.
  
!     `max-peel-branches'
            The maximum number of branches on the hot path through the
            peeled sequence.
  
!     `max-completely-peeled-insns'
            The maximum number of insns of a completely peeled loop.
  
!     `max-completely-peel-times'
            The maximum number of iterations of a loop to be suitable for
            complete peeling.
  
!     `max-completely-peel-loop-nest-depth'
            The maximum depth of a loop nest suitable for complete
            peeling.
  
!     `max-unswitch-insns'
            The maximum number of insns of an unswitched loop.
  
!     `max-unswitch-level'
            The maximum number of branches unswitched in a single loop.
  
!     `lim-expensive'
            The minimum cost of an expensive expression in the loop
            invariant motion.
  
!     `iv-consider-all-candidates-bound'
            Bound on number of candidates for induction variables, below
            which all candidates are considered for each use in induction
            variable optimizations.  If there are more candidates than
            this, only the most relevant ones are considered to avoid
            quadratic time complexity.
  
!     `iv-max-considered-uses'
            The induction variable optimizations give up on loops that
            contain more induction variable uses.
  
!     `iv-always-prune-cand-set-bound'
            If the number of candidates in the set is smaller than this
            value, always try to remove unnecessary ivs from the set when
            adding a new one.
  
!     `scev-max-expr-size'
            Bound on size of expressions used in the scalar evolutions
            analyzer.  Large expressions slow the analyzer.
  
!     `scev-max-expr-complexity'
            Bound on the complexity of the expressions in the scalar
            evolutions analyzer.  Complex expressions slow the analyzer.
  
!     `vect-max-version-for-alignment-checks'
            The maximum number of run-time checks that can be performed
            when doing loop versioning for alignment in the vectorizer.
  
!     `vect-max-version-for-alias-checks'
            The maximum number of run-time checks that can be performed
            when doing loop versioning for alias in the vectorizer.
  
!     `vect-max-peeling-for-alignment'
            The maximum number of loop peels to enhance access alignment
!           for vectorizer. Value -1 means no limit.
  
!     `max-iterations-to-track'
            The maximum number of iterations of a loop the brute-force
!           algorithm for analysis of the number of iterations of the
!           loop tries to evaluate.
  
!     `hot-bb-count-ws-permille'
            A basic block profile count is considered hot if it
!           contributes to the given permillage (i.e. 0...1000) of the
            entire profiled execution.
  
!     `hot-bb-frequency-fraction'
            Select fraction of the entry block frequency of executions of
            basic block in function given basic block needs to have to be
            considered hot.
  
!     `max-predicted-iterations'
            The maximum number of loop iterations we predict statically.
            This is useful in cases where a function contains a single
            loop with known bound and another loop with unknown bound.
--- 8211,8332 ----
            allows all expressions to travel unrestricted distances.  The
            default value is 3.
  
!      'max-hoist-depth'
            The depth of search in the dominator tree for expressions to
            hoist.  This is used to avoid quadratic behavior in hoisting
            algorithm.  The value of 0 does not limit on the search, but
            may slow down compilation of huge functions.  The default
            value is 30.
  
!      'max-tail-merge-comparisons'
            The maximum amount of similar bbs to compare a bb with.  This
!           is used to avoid quadratic behavior in tree tail merging.  The
!           default value is 10.
  
!      'max-tail-merge-iterations'
            The maximum amount of iterations of the pass over the
!           function.  This is used to limit compilation time in tree tail
!           merging.  The default value is 2.
  
!      'max-unrolled-insns'
            The maximum number of instructions that a loop may have to be
            unrolled.  If a loop is unrolled, this parameter also
            determines how many times the loop code is unrolled.
  
!      'max-average-unrolled-insns'
            The maximum number of instructions biased by probabilities of
            their execution that a loop may have to be unrolled.  If a
            loop is unrolled, this parameter also determines how many
            times the loop code is unrolled.
  
!      'max-unroll-times'
            The maximum number of unrollings of a single loop.
  
!      'max-peeled-insns'
            The maximum number of instructions that a loop may have to be
            peeled.  If a loop is peeled, this parameter also determines
            how many times the loop code is peeled.
  
!      'max-peel-times'
            The maximum number of peelings of a single loop.
  
!      'max-peel-branches'
            The maximum number of branches on the hot path through the
            peeled sequence.
  
!      'max-completely-peeled-insns'
            The maximum number of insns of a completely peeled loop.
  
!      'max-completely-peel-times'
            The maximum number of iterations of a loop to be suitable for
            complete peeling.
  
!      'max-completely-peel-loop-nest-depth'
            The maximum depth of a loop nest suitable for complete
            peeling.
  
!      'max-unswitch-insns'
            The maximum number of insns of an unswitched loop.
  
!      'max-unswitch-level'
            The maximum number of branches unswitched in a single loop.
  
!      'lim-expensive'
            The minimum cost of an expensive expression in the loop
            invariant motion.
  
!      'iv-consider-all-candidates-bound'
            Bound on number of candidates for induction variables, below
            which all candidates are considered for each use in induction
            variable optimizations.  If there are more candidates than
            this, only the most relevant ones are considered to avoid
            quadratic time complexity.
  
!      'iv-max-considered-uses'
            The induction variable optimizations give up on loops that
            contain more induction variable uses.
  
!      'iv-always-prune-cand-set-bound'
            If the number of candidates in the set is smaller than this
            value, always try to remove unnecessary ivs from the set when
            adding a new one.
  
!      'scev-max-expr-size'
            Bound on size of expressions used in the scalar evolutions
            analyzer.  Large expressions slow the analyzer.
  
!      'scev-max-expr-complexity'
            Bound on the complexity of the expressions in the scalar
            evolutions analyzer.  Complex expressions slow the analyzer.
  
!      'vect-max-version-for-alignment-checks'
            The maximum number of run-time checks that can be performed
            when doing loop versioning for alignment in the vectorizer.
  
!      'vect-max-version-for-alias-checks'
            The maximum number of run-time checks that can be performed
            when doing loop versioning for alias in the vectorizer.
  
!      'vect-max-peeling-for-alignment'
            The maximum number of loop peels to enhance access alignment
!           for vectorizer.  Value -1 means no limit.
  
!      'max-iterations-to-track'
            The maximum number of iterations of a loop the brute-force
!           algorithm for analysis of the number of iterations of the loop
!           tries to evaluate.
  
!      'hot-bb-count-ws-permille'
            A basic block profile count is considered hot if it
!           contributes to the given permillage (i.e.  0...1000) of the
            entire profiled execution.
  
!      'hot-bb-frequency-fraction'
            Select fraction of the entry block frequency of executions of
            basic block in function given basic block needs to have to be
            considered hot.
  
!      'max-predicted-iterations'
            The maximum number of loop iterations we predict statically.
            This is useful in cases where a function contains a single
            loop with known bound and another loop with unknown bound.
*************** includes experimental options that may p
*** 8374,8436 ****
            means that the loop without bounds appears artificially cold
            relative to the other one.
  
!     `builtin-expect-probability'
!           Control the probability of the expression having the
!           specified value. This parameter takes a percentage (i.e. 0
!           ... 100) as input.  The default probability of 90 is obtained
            empirically.
  
!     `align-threshold'
            Select fraction of the maximal frequency of executions of a
            basic block in a function to align the basic block.
  
!     `align-loop-iterations'
            A loop expected to iterate at least the selected number of
            iterations is aligned.
  
!     `tracer-dynamic-coverage'
!     `tracer-dynamic-coverage-feedback'
            This value is used to limit superblock formation once the
            given percentage of executed instructions is covered.  This
            limits unnecessary code size expansion.
  
!           The `tracer-dynamic-coverage-feedback' parameter is used only
            when profile feedback is available.  The real profiles (as
            opposed to statically estimated ones) are much less balanced
            allowing the threshold to be larger value.
  
!     `tracer-max-code-growth'
            Stop tail duplication once code growth has reached given
!           percentage.  This is a rather artificial limit, as most of
!           the duplicates are eliminated later in cross jumping, so it
!           may be set to much higher values than is the desired code
!           growth.
  
-     `tracer-min-branch-ratio'
            Stop reverse growth when the reverse probability of best edge
            is less than this threshold (in percent).
  
!     `tracer-min-branch-probability'
!     `tracer-min-branch-probability-feedback'
            Stop forward growth if the best edge has probability lower
            than this threshold.
  
!           Similarly to `tracer-dynamic-coverage' two parameters are
!           provided.  `tracer-min-branch-probability-feedback' is used
            for compilation with profile feedback and
!           `tracer-min-branch-probability' compilation without.  The
            value for compilation with profile feedback needs to be more
            conservative (higher) in order to make tracer effective.
  
!     `max-cse-path-length'
            The maximum number of basic blocks on path that CSE considers.
            The default is 10.
  
!     `max-cse-insns'
            The maximum number of instructions CSE processes before
            flushing.  The default is 1000.
  
!     `ggc-min-expand'
            GCC uses a garbage collector to manage its own memory
            allocation.  This parameter specifies the minimum percentage
            by which the garbage collector's heap should be allowed to
--- 8335,8403 ----
            means that the loop without bounds appears artificially cold
            relative to the other one.
  
!      'builtin-expect-probability'
!           Control the probability of the expression having the specified
!           value.  This parameter takes a percentage (i.e.  0 ...  100)
!           as input.  The default probability of 90 is obtained
            empirically.
  
!      'align-threshold'
! 
            Select fraction of the maximal frequency of executions of a
            basic block in a function to align the basic block.
  
!      'align-loop-iterations'
! 
            A loop expected to iterate at least the selected number of
            iterations is aligned.
  
!      'tracer-dynamic-coverage'
!      'tracer-dynamic-coverage-feedback'
! 
            This value is used to limit superblock formation once the
            given percentage of executed instructions is covered.  This
            limits unnecessary code size expansion.
  
!           The 'tracer-dynamic-coverage-feedback' parameter is used only
            when profile feedback is available.  The real profiles (as
            opposed to statically estimated ones) are much less balanced
            allowing the threshold to be larger value.
  
!      'tracer-max-code-growth'
            Stop tail duplication once code growth has reached given
!           percentage.  This is a rather artificial limit, as most of the
!           duplicates are eliminated later in cross jumping, so it may be
!           set to much higher values than is the desired code growth.
! 
!      'tracer-min-branch-ratio'
  
            Stop reverse growth when the reverse probability of best edge
            is less than this threshold (in percent).
  
!      'tracer-min-branch-probability'
!      'tracer-min-branch-probability-feedback'
! 
            Stop forward growth if the best edge has probability lower
            than this threshold.
  
!           Similarly to 'tracer-dynamic-coverage' two parameters are
!           provided.  'tracer-min-branch-probability-feedback' is used
            for compilation with profile feedback and
!           'tracer-min-branch-probability' compilation without.  The
            value for compilation with profile feedback needs to be more
            conservative (higher) in order to make tracer effective.
  
!      'max-cse-path-length'
! 
            The maximum number of basic blocks on path that CSE considers.
            The default is 10.
  
!      'max-cse-insns'
            The maximum number of instructions CSE processes before
            flushing.  The default is 1000.
  
!      'ggc-min-expand'
! 
            GCC uses a garbage collector to manage its own memory
            allocation.  This parameter specifies the minimum percentage
            by which the garbage collector's heap should be allowed to
*************** includes experimental options that may p
*** 8438,8457 ****
            compilation speed; it has no effect on code generation.
  
            The default is 30% + 70% * (RAM/1GB) with an upper bound of
!           100% when RAM >= 1GB.  If `getrlimit' is available, the
!           notion of "RAM" is the smallest of actual RAM and
!           `RLIMIT_DATA' or `RLIMIT_AS'.  If GCC is not able to
!           calculate RAM on a particular platform, the lower bound of
!           30% is used.  Setting this parameter and `ggc-min-heapsize'
!           to zero causes a full collection to occur at every
!           opportunity.  This is extremely slow, but can be useful for
!           debugging.
  
-     `ggc-min-heapsize'
            Minimum size of the garbage collector's heap before it begins
            bothering to collect garbage.  The first collection occurs
!           after the heap expands by `ggc-min-expand'% beyond
!           `ggc-min-heapsize'.  Again, tuning this may improve
            compilation speed, and has no effect on code generation.
  
            The default is the smaller of RAM/8, RLIMIT_RSS, or a limit
--- 8405,8424 ----
            compilation speed; it has no effect on code generation.
  
            The default is 30% + 70% * (RAM/1GB) with an upper bound of
!           100% when RAM >= 1GB.  If 'getrlimit' is available, the notion
!           of "RAM" is the smallest of actual RAM and 'RLIMIT_DATA' or
!           'RLIMIT_AS'.  If GCC is not able to calculate RAM on a
!           particular platform, the lower bound of 30% is used.  Setting
!           this parameter and 'ggc-min-heapsize' to zero causes a full
!           collection to occur at every opportunity.  This is extremely
!           slow, but can be useful for debugging.
! 
!      'ggc-min-heapsize'
  
            Minimum size of the garbage collector's heap before it begins
            bothering to collect garbage.  The first collection occurs
!           after the heap expands by 'ggc-min-expand'% beyond
!           'ggc-min-heapsize'.  Again, tuning this may improve
            compilation speed, and has no effect on code generation.
  
            The default is the smaller of RAM/8, RLIMIT_RSS, or a limit
*************** includes experimental options that may p
*** 8461,8615 ****
            to calculate RAM on a particular platform, the lower bound is
            used.  Setting this parameter very large effectively disables
            garbage collection.  Setting this parameter and
!           `ggc-min-expand' to zero causes a full collection to occur at
            every opportunity.
  
!     `max-reload-search-insns'
            The maximum number of instruction reload should look backward
            for equivalent register.  Increasing values mean more
            aggressive optimization, making the compilation time increase
            with probably slightly better performance.  The default value
            is 100.
  
!     `max-cselib-memory-locations'
!           The maximum number of memory locations cselib should take
!           into account.  Increasing values mean more aggressive
!           optimization, making the compilation time increase with
!           probably slightly better performance.  The default value is
!           500.
  
!     `max-sched-ready-insns'
            The maximum number of instructions ready to be issued the
            scheduler should consider at any given time during the first
            scheduling pass.  Increasing values mean more thorough
            searches, making the compilation time increase with probably
            little benefit.  The default value is 100.
  
!     `max-sched-region-blocks'
            The maximum number of blocks in a region to be considered for
            interblock scheduling.  The default value is 10.
  
!     `max-pipeline-region-blocks'
            The maximum number of blocks in a region to be considered for
            pipelining in the selective scheduler.  The default value is
            15.
  
!     `max-sched-region-insns'
            The maximum number of insns in a region to be considered for
            interblock scheduling.  The default value is 100.
  
!     `max-pipeline-region-insns'
            The maximum number of insns in a region to be considered for
            pipelining in the selective scheduler.  The default value is
            200.
  
!     `min-spec-prob'
            The minimum probability (in percents) of reaching a source
            block for interblock speculative scheduling.  The default
            value is 40.
  
!     `max-sched-extend-regions-iters'
            The maximum number of iterations through CFG to extend
            regions.  A value of 0 (the default) disables region
            extensions.
  
!     `max-sched-insn-conflict-delay'
            The maximum conflict delay for an insn to be considered for
            speculative motion.  The default value is 3.
  
!     `sched-spec-prob-cutoff'
            The minimal probability of speculation success (in percents),
!           so that speculative insns are scheduled.  The default value
!           is 40.
  
!     `sched-state-edge-prob-cutoff'
!           The minimum probability an edge must have for the scheduler
!           to save its state across it.  The default value is 10.
  
!     `sched-mem-true-dep-cost'
            Minimal distance (in CPU cycles) between store and load
            targeting same memory locations.  The default value is 1.
  
!     `selsched-max-lookahead'
            The maximum size of the lookahead window of selective
            scheduling.  It is a depth of search for available
            instructions.  The default value is 50.
  
!     `selsched-max-sched-times'
            The maximum number of times that an instruction is scheduled
            during selective scheduling.  This is the limit on the number
            of iterations through which the instruction may be pipelined.
            The default value is 2.
  
!     `selsched-insns-to-rename'
!           The maximum number of best instructions in the ready list
!           that are considered for renaming in the selective scheduler.
!           The default value is 2.
  
!     `sms-min-sc'
            The minimum value of stage count that swing modulo scheduler
            generates.  The default value is 2.
  
!     `max-last-value-rtl'
            The maximum size measured as number of RTLs that can be
!           recorded in an expression in combiner for a pseudo register
!           as last known value of that register.  The default is 10000.
  
!     `max-combine-insns'
            The maximum number of instructions the RTL combiner tries to
!           combine.  The default value is 2 at `-Og' and 4 otherwise.
  
!     `integer-share-limit'
            Small integer constants can use a shared data structure,
!           reducing the compiler's memory usage and increasing its
!           speed.  This sets the maximum value of a shared integer
!           constant.  The default value is 256.
  
!     `ssp-buffer-size'
            The minimum size of buffers (i.e. arrays) that receive stack
!           smashing protection when `-fstack-protection' is used.
  
!     `min-size-for-stack-sharing'
            The minimum size of variables taking part in stack slot
!           sharing when not optimizing. The default value is 32.
  
!     `max-jump-thread-duplication-stmts'
            Maximum number of statements allowed in a block that needs to
            be duplicated when threading jumps.
  
!     `max-fields-for-field-sensitive'
            Maximum number of fields in a structure treated in a field
            sensitive manner during pointer analysis.  The default is zero
!           for `-O0' and `-O1', and 100 for `-Os', `-O2', and `-O3'.
  
!     `prefetch-latency'
            Estimate on average number of instructions that are executed
            before prefetch finishes.  The distance prefetched ahead is
            proportional to this constant.  Increasing this number may
            also lead to less streams being prefetched (see
!           `simultaneous-prefetches').
  
!     `simultaneous-prefetches'
            Maximum number of prefetches that can run at the same time.
  
!     `l1-cache-line-size'
            The size of cache line in L1 cache, in bytes.
  
!     `l1-cache-size'
            The size of L1 cache, in kilobytes.
  
!     `l2-cache-size'
            The size of L2 cache, in kilobytes.
  
!     `min-insn-to-prefetch-ratio'
            The minimum ratio between the number of instructions and the
            number of prefetches to enable prefetching in a loop.
  
!     `prefetch-min-insn-to-mem-ratio'
            The minimum ratio between the number of instructions and the
            number of memory references to enable prefetching in a loop.
  
!     `use-canonical-types'
            Whether the compiler should use the "canonical" type system.
            By default, this should always be 1, which uses a more
            efficient internal mechanism for comparing types in C++ and
--- 8428,8581 ----
            to calculate RAM on a particular platform, the lower bound is
            used.  Setting this parameter very large effectively disables
            garbage collection.  Setting this parameter and
!           'ggc-min-expand' to zero causes a full collection to occur at
            every opportunity.
  
!      'max-reload-search-insns'
            The maximum number of instruction reload should look backward
            for equivalent register.  Increasing values mean more
            aggressive optimization, making the compilation time increase
            with probably slightly better performance.  The default value
            is 100.
  
!      'max-cselib-memory-locations'
!           The maximum number of memory locations cselib should take into
!           account.  Increasing values mean more aggressive optimization,
!           making the compilation time increase with probably slightly
!           better performance.  The default value is 500.
  
!      'max-sched-ready-insns'
            The maximum number of instructions ready to be issued the
            scheduler should consider at any given time during the first
            scheduling pass.  Increasing values mean more thorough
            searches, making the compilation time increase with probably
            little benefit.  The default value is 100.
  
!      'max-sched-region-blocks'
            The maximum number of blocks in a region to be considered for
            interblock scheduling.  The default value is 10.
  
!      'max-pipeline-region-blocks'
            The maximum number of blocks in a region to be considered for
            pipelining in the selective scheduler.  The default value is
            15.
  
!      'max-sched-region-insns'
            The maximum number of insns in a region to be considered for
            interblock scheduling.  The default value is 100.
  
!      'max-pipeline-region-insns'
            The maximum number of insns in a region to be considered for
            pipelining in the selective scheduler.  The default value is
            200.
  
!      'min-spec-prob'
            The minimum probability (in percents) of reaching a source
            block for interblock speculative scheduling.  The default
            value is 40.
  
!      'max-sched-extend-regions-iters'
            The maximum number of iterations through CFG to extend
            regions.  A value of 0 (the default) disables region
            extensions.
  
!      'max-sched-insn-conflict-delay'
            The maximum conflict delay for an insn to be considered for
            speculative motion.  The default value is 3.
  
!      'sched-spec-prob-cutoff'
            The minimal probability of speculation success (in percents),
!           so that speculative insns are scheduled.  The default value is
!           40.
  
!      'sched-state-edge-prob-cutoff'
!           The minimum probability an edge must have for the scheduler to
!           save its state across it.  The default value is 10.
  
!      'sched-mem-true-dep-cost'
            Minimal distance (in CPU cycles) between store and load
            targeting same memory locations.  The default value is 1.
  
!      'selsched-max-lookahead'
            The maximum size of the lookahead window of selective
            scheduling.  It is a depth of search for available
            instructions.  The default value is 50.
  
!      'selsched-max-sched-times'
            The maximum number of times that an instruction is scheduled
            during selective scheduling.  This is the limit on the number
            of iterations through which the instruction may be pipelined.
            The default value is 2.
  
!      'selsched-insns-to-rename'
!           The maximum number of best instructions in the ready list that
!           are considered for renaming in the selective scheduler.  The
!           default value is 2.
  
!      'sms-min-sc'
            The minimum value of stage count that swing modulo scheduler
            generates.  The default value is 2.
  
!      'max-last-value-rtl'
            The maximum size measured as number of RTLs that can be
!           recorded in an expression in combiner for a pseudo register as
!           last known value of that register.  The default is 10000.
  
!      'max-combine-insns'
            The maximum number of instructions the RTL combiner tries to
!           combine.  The default value is 2 at '-Og' and 4 otherwise.
  
!      'integer-share-limit'
            Small integer constants can use a shared data structure,
!           reducing the compiler's memory usage and increasing its speed.
!           This sets the maximum value of a shared integer constant.  The
!           default value is 256.
  
!      'ssp-buffer-size'
            The minimum size of buffers (i.e. arrays) that receive stack
!           smashing protection when '-fstack-protection' is used.
  
!      'min-size-for-stack-sharing'
            The minimum size of variables taking part in stack slot
!           sharing when not optimizing.  The default value is 32.
  
!      'max-jump-thread-duplication-stmts'
            Maximum number of statements allowed in a block that needs to
            be duplicated when threading jumps.
  
!      'max-fields-for-field-sensitive'
            Maximum number of fields in a structure treated in a field
            sensitive manner during pointer analysis.  The default is zero
!           for '-O0' and '-O1', and 100 for '-Os', '-O2', and '-O3'.
  
!      'prefetch-latency'
            Estimate on average number of instructions that are executed
            before prefetch finishes.  The distance prefetched ahead is
            proportional to this constant.  Increasing this number may
            also lead to less streams being prefetched (see
!           'simultaneous-prefetches').
  
!      'simultaneous-prefetches'
            Maximum number of prefetches that can run at the same time.
  
!      'l1-cache-line-size'
            The size of cache line in L1 cache, in bytes.
  
!      'l1-cache-size'
            The size of L1 cache, in kilobytes.
  
!      'l2-cache-size'
            The size of L2 cache, in kilobytes.
  
!      'min-insn-to-prefetch-ratio'
            The minimum ratio between the number of instructions and the
            number of prefetches to enable prefetching in a loop.
  
!      'prefetch-min-insn-to-mem-ratio'
            The minimum ratio between the number of instructions and the
            number of memory references to enable prefetching in a loop.
  
!      'use-canonical-types'
            Whether the compiler should use the "canonical" type system.
            By default, this should always be 1, which uses a more
            efficient internal mechanism for comparing types in C++ and
*************** includes experimental options that may p
*** 8617,8631 ****
            are causing compilation failures, set this value to 0 to
            disable canonical types.
  
!     `switch-conversion-max-branch-ratio'
!           Switch initialization conversion refuses to create arrays
!           that are bigger than `switch-conversion-max-branch-ratio'
!           times the number of branches in the switch.
  
!     `max-partial-antic-length'
            Maximum length of the partial antic set computed during the
            tree partial redundancy elimination optimization
!           (`-ftree-pre') when optimizing at `-O3' and above.  For some
            sorts of source code the enhanced partial redundancy
            elimination optimization can run away, consuming all of the
            memory available on the host machine.  This parameter sets a
--- 8583,8597 ----
            are causing compilation failures, set this value to 0 to
            disable canonical types.
  
!      'switch-conversion-max-branch-ratio'
!           Switch initialization conversion refuses to create arrays that
!           are bigger than 'switch-conversion-max-branch-ratio' times the
!           number of branches in the switch.
  
!      'max-partial-antic-length'
            Maximum length of the partial antic set computed during the
            tree partial redundancy elimination optimization
!           ('-ftree-pre') when optimizing at '-O3' and above.  For some
            sorts of source code the enhanced partial redundancy
            elimination optimization can run away, consuming all of the
            memory available on the host machine.  This parameter sets a
*************** includes experimental options that may p
*** 8633,8661 ****
            prevents the runaway behavior.  Setting a value of 0 for this
            parameter allows an unlimited set length.
  
!     `sccvn-max-scc-size'
            Maximum size of a strongly connected component (SCC) during
            SCCVN processing.  If this limit is hit, SCCVN processing for
            the whole function is not done and optimizations depending on
            it are disabled.  The default maximum SCC size is 10000.
  
!     `sccvn-max-alias-queries-per-access'
!           Maximum number of alias-oracle queries we perform when
!           looking for redundancies for loads and stores.  If this limit
!           is hit the search is aborted and the load or store is not
!           considered redundant.  The number of queries is
!           algorithmically limited to the number of stores on all paths
!           from the load to the function entry.  The default maximum
!           number of queries is 1000.
  
!     `ira-max-loops-num'
            IRA uses regional register allocation by default.  If a
            function contains more loops than the number given by this
            parameter, only at most the given number of the most
            frequently-executed loops form regions for regional register
            allocation.  The default value of the parameter is 100.
  
!     `ira-max-conflict-table-size'
            Although IRA uses a sophisticated algorithm to compress the
            conflict table, the table can still require excessive amounts
            of memory for huge functions.  If the conflict table for a
--- 8599,8627 ----
            prevents the runaway behavior.  Setting a value of 0 for this
            parameter allows an unlimited set length.
  
!      'sccvn-max-scc-size'
            Maximum size of a strongly connected component (SCC) during
            SCCVN processing.  If this limit is hit, SCCVN processing for
            the whole function is not done and optimizations depending on
            it are disabled.  The default maximum SCC size is 10000.
  
!      'sccvn-max-alias-queries-per-access'
!           Maximum number of alias-oracle queries we perform when looking
!           for redundancies for loads and stores.  If this limit is hit
!           the search is aborted and the load or store is not considered
!           redundant.  The number of queries is algorithmically limited
!           to the number of stores on all paths from the load to the
!           function entry.  The default maximum number of queries is
!           1000.
  
!      'ira-max-loops-num'
            IRA uses regional register allocation by default.  If a
            function contains more loops than the number given by this
            parameter, only at most the given number of the most
            frequently-executed loops form regions for regional register
            allocation.  The default value of the parameter is 100.
  
!      'ira-max-conflict-table-size'
            Although IRA uses a sophisticated algorithm to compress the
            conflict table, the table can still require excessive amounts
            of memory for huge functions.  If the conflict table for a
*************** includes experimental options that may p
*** 8665,8714 ****
            building a pseudo-register conflict table.  The default value
            of the parameter is 2000.
  
!     `ira-loop-reserved-regs'
!           IRA can be used to evaluate more accurate register pressure
!           in loops for decisions to move loop invariants (see `-O3').
!           The number of available registers reserved for some other
!           purposes is given by this parameter.  The default value of
!           the parameter is 2, which is the minimal number of registers
            needed by typical instructions.  This value is the best found
            from numerous experiments.
  
!     `lra-inheritance-ebb-probability-cutoff'
            LRA tries to reuse values reloaded in registers in subsequent
            insns.  This optimization is called inheritance.  EBB is used
            as a region to do this optimization.  The parameter defines a
            minimal fall-through edge probability in percentage used to
!           add BB to inheritance EBB in LRA.  The default value of the
            parameter is 40.  The value was chosen from numerous runs of
            SPEC2000 on x86-64.
  
!     `loop-invariant-max-bbs-in-loop'
            Loop invariant motion can be very expensive, both in
            compilation time and in amount of needed compile-time memory,
!           with very large loops.  Loops with more basic blocks than
!           this parameter won't have loop invariant motion optimization
!           performed on them.  The default value of the parameter is
!           1000 for `-O1' and 10000 for `-O2' and above.
  
!     `loop-max-datarefs-for-datadeps'
            Building data dependencies is expensive for very large loops.
            This parameter limits the number of data references in loops
!           that are considered for data dependence analysis.  These
!           large loops are no handled by the optimizations using loop
!           data dependencies.  The default value is 1000.
  
!     `max-vartrack-size'
            Sets a maximum number of hash table slots to use during
            variable tracking dataflow analysis of any function.  If this
            limit is exceeded with variable tracking at assignments
            enabled, analysis for that function is retried without it,
            after removing all debug insns from the function.  If the
            limit is exceeded even without debug insns, var tracking
!           analysis is completely disabled for the function.  Setting
!           the parameter to zero makes it unlimited.
  
!     `max-vartrack-expr-depth'
            Sets a maximum number of recursion levels when attempting to
            map variable names or debug temporaries to value expressions.
            This trades compilation time for more complete debug
--- 8631,8680 ----
            building a pseudo-register conflict table.  The default value
            of the parameter is 2000.
  
!      'ira-loop-reserved-regs'
!           IRA can be used to evaluate more accurate register pressure in
!           loops for decisions to move loop invariants (see '-O3').  The
!           number of available registers reserved for some other purposes
!           is given by this parameter.  The default value of the
!           parameter is 2, which is the minimal number of registers
            needed by typical instructions.  This value is the best found
            from numerous experiments.
  
!      'lra-inheritance-ebb-probability-cutoff'
            LRA tries to reuse values reloaded in registers in subsequent
            insns.  This optimization is called inheritance.  EBB is used
            as a region to do this optimization.  The parameter defines a
            minimal fall-through edge probability in percentage used to
!           add BB to inheritance EBB in LRA. The default value of the
            parameter is 40.  The value was chosen from numerous runs of
            SPEC2000 on x86-64.
  
!      'loop-invariant-max-bbs-in-loop'
            Loop invariant motion can be very expensive, both in
            compilation time and in amount of needed compile-time memory,
!           with very large loops.  Loops with more basic blocks than this
!           parameter won't have loop invariant motion optimization
!           performed on them.  The default value of the parameter is 1000
!           for '-O1' and 10000 for '-O2' and above.
  
!      'loop-max-datarefs-for-datadeps'
            Building data dependencies is expensive for very large loops.
            This parameter limits the number of data references in loops
!           that are considered for data dependence analysis.  These large
!           loops are no handled by the optimizations using loop data
!           dependencies.  The default value is 1000.
  
!      'max-vartrack-size'
            Sets a maximum number of hash table slots to use during
            variable tracking dataflow analysis of any function.  If this
            limit is exceeded with variable tracking at assignments
            enabled, analysis for that function is retried without it,
            after removing all debug insns from the function.  If the
            limit is exceeded even without debug insns, var tracking
!           analysis is completely disabled for the function.  Setting the
!           parameter to zero makes it unlimited.
  
!      'max-vartrack-expr-depth'
            Sets a maximum number of recursion levels when attempting to
            map variable names or debug temporaries to value expressions.
            This trades compilation time for more complete debug
*************** includes experimental options that may p
*** 8718,8978 ****
            compiler to find more complex debug expressions, but compile
            time and memory use may grow.  The default is 12.
  
!     `min-nondebug-insn-uid'
            Use uids starting at this parameter for nondebug insns.  The
            range below the parameter is reserved exclusively for debug
!           insns created by `-fvar-tracking-assignments', but debug
!           insns may get (non-overlapping) uids above it if the reserved
!           range is exhausted.
  
!     `ipa-sra-ptr-growth-factor'
            IPA-SRA replaces a pointer to an aggregate with one or more
            new parameters only when their cumulative size is less or
!           equal to `ipa-sra-ptr-growth-factor' times the size of the
            original pointer parameter.
  
!     `sra-max-scalarization-size-Ospeed'
! 
!     `sra-max-scalarization-size-Osize'
            The two Scalar Reduction of Aggregates passes (SRA and
            IPA-SRA) aim to replace scalar parts of aggregates with uses
!           of independent scalar variables.  These parameters control
!           the maximum size, in storage units, of aggregate which is
            considered for replacement when compiling for speed
!           (`sra-max-scalarization-size-Ospeed') or size
!           (`sra-max-scalarization-size-Osize') respectively.
  
!     `tm-max-aggregate-size'
!           When making copies of thread-local variables in a
!           transaction, this parameter specifies the size in bytes after
!           which variables are saved with the logging functions as
!           opposed to save/restore code sequence pairs.  This option
!           only applies when using `-fgnu-tm'.
  
!     `graphite-max-nb-scop-params'
            To avoid exponential effects in the Graphite loop transforms,
            the number of parameters in a Static Control Part (SCoP) is
            bounded.  The default value is 10 parameters.  A variable
!           whose value is unknown at compilation time and defined
!           outside a SCoP is a parameter of the SCoP.
  
!     `graphite-max-bbs-per-function'
            To avoid exponential effects in the detection of SCoPs, the
            size of the functions analyzed by Graphite is bounded.  The
            default value is 100 basic blocks.
  
!     `loop-block-tile-size'
            Loop blocking or strip mining transforms, enabled with
!           `-floop-block' or `-floop-strip-mine', strip mine each loop
!           in the loop nest by a given number of iterations.  The strip
!           length can be changed using the `loop-block-tile-size'
            parameter.  The default value is 51 iterations.
  
!     `loop-unroll-jam-size'
!           Specify the unroll factor for the `-floop-unroll-and-jam'
            option.  The default value is 4.
  
!     `loop-unroll-jam-depth'
            Specify the dimension to be unrolled (counting from the most
!           inner loop) for the  `-floop-unroll-and-jam'.  The default
            value is 2.
  
!     `ipa-cp-value-list-size'
            IPA-CP attempts to track all possible values and types passed
            to a function's parameter in order to propagate them and
!           perform devirtualization.  `ipa-cp-value-list-size' is the
            maximum number of values and types it stores per one formal
            parameter of a function.
  
!     `ipa-cp-eval-threshold'
            IPA-CP calculates its own score of cloning profitability
            heuristics and performs those cloning opportunities with
!           scores that exceed `ipa-cp-eval-threshold'.
  
!     `ipa-cp-recursion-penalty'
            Percentage penalty the recursive functions will receive when
            they are evaluated for cloning.
  
!     `ipa-cp-single-call-penalty'
            Percentage penalty functions containg a single call to another
            function will receive when they are evaluated for cloning.
  
!     `ipa-max-agg-items'
            IPA-CP is also capable to propagate a number of scalar values
!           passed in an aggregate. `ipa-max-agg-items' controls the
            maximum number of such values per one parameter.
  
!     `ipa-cp-loop-hint-bonus'
!           When IPA-CP determines that a cloning candidate would make
!           the number of iterations of a loop known, it adds a bonus of
!           `ipa-cp-loop-hint-bonus' to the profitability score of the
            candidate.
  
!     `ipa-cp-array-index-hint-bonus'
!           When IPA-CP determines that a cloning candidate would make
!           the index of an array access known, it adds a bonus of
!           `ipa-cp-array-index-hint-bonus' to the profitability score of
            the candidate.
  
!     `ipa-max-aa-steps'
            During its analysis of function bodies, IPA-CP employs alias
            analysis in order to track values pointed to by function
            parameters.  In order not spend too much time analyzing huge
!           functions, it gives up and consider all memory clobbered
!           after examining `ipa-max-aa-steps' statements modifying
!           memory.
  
!     `lto-partitions'
            Specify desired number of partitions produced during WHOPR
            compilation.  The number of partitions should exceed the
            number of CPUs used for compilation.  The default value is 32.
  
!     `lto-min-partition'
            Size of minimal partition for WHOPR (in estimated
!           instructions).  This prevents expenses of splitting very
!           small programs into too many partitions.
  
!     `cxx-max-namespaces-for-diagnostic-help'
            The maximum number of namespaces to consult for suggestions
            when C++ name lookup fails for an identifier.  The default is
            1000.
  
!     `sink-frequency-threshold'
            The maximum relative execution frequency (in percents) of the
!           target block relative to a statement's original block to
!           allow statement sinking of a statement.  Larger numbers
!           result in more aggressive statement sinking.  The default
!           value is 75.  A small positive adjustment is applied for
!           statements with memory operands as those are even more
!           profitable so sink.
  
!     `max-stores-to-sink'
            The maximum number of conditional store pairs that can be
!           sunk.  Set to 0 if either vectorization (`-ftree-vectorize')
!           or if-conversion (`-ftree-loop-if-convert') is disabled.  The
            default is 2.
  
!     `allow-store-data-races'
            Allow optimizers to introduce new data races on stores.  Set
            to 1 to allow, otherwise to 0.  This option is enabled by
!           default at optimization level `-Ofast'.
  
!     `case-values-threshold'
            The smallest number of different values for which it is best
!           to use a jump-table instead of a tree of conditional
!           branches.  If the value is 0, use the default for the
!           machine.  The default is 0.
  
!     `tree-reassoc-width'
            Set the maximum number of instructions executed in parallel in
!           reassociated tree. This parameter overrides target dependent
            heuristics used by default if has non zero value.
  
!     `sched-pressure-algorithm'
            Choose between the two available implementations of
!           `-fsched-pressure'.  Algorithm 1 is the original
            implementation and is the more likely to prevent instructions
            from being reordered.  Algorithm 2 was designed to be a
            compromise between the relatively conservative approach taken
!           by algorithm 1 and the rather aggressive approach taken by
!           the default scheduler.  It relies more heavily on having a
!           regular register file and accurate register pressure classes.
!           See `haifa-sched.c' in the GCC sources for more details.
  
            The default choice depends on the target.
  
!     `max-slsr-cand-scan'
            Set the maximum number of existing candidates that are
            considered when seeking a basis for a new straight-line
            strength reduction candidate.
  
!     `asan-globals'
            Enable buffer overflow detection for global objects.  This
            kind of protection is enabled by default if you are using
!           `-fsanitize=address' option.  To disable global objects
!           protection use `--param asan-globals=0'.
  
!     `asan-stack'
!           Enable buffer overflow detection for stack objects.  This
!           kind of protection is enabled by default when using
!           `-fsanitize=address'.  To disable stack protection use
!           `--param asan-stack=0' option.
  
!     `asan-instrument-reads'
            Enable buffer overflow detection for memory reads.  This kind
            of protection is enabled by default when using
!           `-fsanitize=address'.  To disable memory reads protection use
!           `--param asan-instrument-reads=0'.
  
!     `asan-instrument-writes'
!           Enable buffer overflow detection for memory writes.  This
!           kind of protection is enabled by default when using
!           `-fsanitize=address'.  To disable memory writes protection use
!           `--param asan-instrument-writes=0' option.
  
!     `asan-memintrin'
            Enable detection for built-in functions.  This kind of
            protection is enabled by default when using
!           `-fsanitize=address'.  To disable built-in functions
!           protection use `--param asan-memintrin=0'.
  
!     `asan-use-after-return'
            Enable detection of use-after-return.  This kind of protection
!           is enabled by default when using `-fsanitize=address' option.
!           To disable use-after-return detection use `--param
            asan-use-after-return=0'.
  
!     `asan-instrumentation-with-call-threshold'
!           If number of memory accesses in function being instrumented
!           is greater or equal to this number, use callbacks instead of
!           inline checks.  E.g. to disable inline code use `--param
            asan-instrumentation-with-call-threshold=0'.
  
!     `chkp-max-ctor-size'
            Static constructors generated by Pointer Bounds Checker may
            become very large and significantly increase compile time at
!           optimization level `-O1' and higher.  This parameter is a
            maximum nubmer of statements in a single generated
            constructor.  Default value is 5000.
  
!     `max-fsm-thread-path-insns'
!           Maximum number of instructions to copy when duplicating
!           blocks on a finite state automaton jump thread path.  The
!           default is 100.
  
!     `max-fsm-thread-length'
            Maximum number of basic blocks on a finite state automaton
            jump thread path.  The default is 10.
  
!     `max-fsm-thread-paths'
!           Maximum number of new jump thread paths to create for a
!           finite state automaton.  The default is 50.
  
!     `parloops-chunk-size'
!           Chunk size of omp schedule for loops parallelized by
!           parloops.  The default is 0.
  
!     `parloops-schedule'
            Schedule type of omp schedule for loops parallelized by
            parloops (static, dynamic, guided, auto, runtime).  The
            default is static.
  
!     `max-ssa-name-query-depth'
            Maximum depth of recursion when querying properties of SSA
            names in things like fold routines.  One level of recursion
            corresponds to following a use-def chain.
  
!     `hsa-gen-debug-stores'
            Enable emission of special debug stores within HSA kernels
            which are then read and reported by libgomp plugin.
            Generation of these stores is disabled by default, use
!           `--param hsa-gen-debug-stores=1' to enable it.
  
!     `max-speculative-devirt-maydefs'
            The maximum number of may-defs we analyze when looking for a
!           must-def specifying the dynamic type of an object that
!           invokes a virtual call we may be able to devirtualize
!           speculatively.
  
  
  File: gcc.info,  Node: Instrumentation Options,  Next: Preprocessor Options,  Prev: Optimize Options,  Up: Invoking GCC
--- 8684,8940 ----
            compiler to find more complex debug expressions, but compile
            time and memory use may grow.  The default is 12.
  
!      'min-nondebug-insn-uid'
            Use uids starting at this parameter for nondebug insns.  The
            range below the parameter is reserved exclusively for debug
!           insns created by '-fvar-tracking-assignments', but debug insns
!           may get (non-overlapping) uids above it if the reserved range
!           is exhausted.
  
!      'ipa-sra-ptr-growth-factor'
            IPA-SRA replaces a pointer to an aggregate with one or more
            new parameters only when their cumulative size is less or
!           equal to 'ipa-sra-ptr-growth-factor' times the size of the
            original pointer parameter.
  
!      'sra-max-scalarization-size-Ospeed'
!      'sra-max-scalarization-size-Osize'
            The two Scalar Reduction of Aggregates passes (SRA and
            IPA-SRA) aim to replace scalar parts of aggregates with uses
!           of independent scalar variables.  These parameters control the
!           maximum size, in storage units, of aggregate which is
            considered for replacement when compiling for speed
!           ('sra-max-scalarization-size-Ospeed') or size
!           ('sra-max-scalarization-size-Osize') respectively.
  
!      'tm-max-aggregate-size'
!           When making copies of thread-local variables in a transaction,
!           this parameter specifies the size in bytes after which
!           variables are saved with the logging functions as opposed to
!           save/restore code sequence pairs.  This option only applies
!           when using '-fgnu-tm'.
  
!      'graphite-max-nb-scop-params'
            To avoid exponential effects in the Graphite loop transforms,
            the number of parameters in a Static Control Part (SCoP) is
            bounded.  The default value is 10 parameters.  A variable
!           whose value is unknown at compilation time and defined outside
!           a SCoP is a parameter of the SCoP.
  
!      'graphite-max-bbs-per-function'
            To avoid exponential effects in the detection of SCoPs, the
            size of the functions analyzed by Graphite is bounded.  The
            default value is 100 basic blocks.
  
!      'loop-block-tile-size'
            Loop blocking or strip mining transforms, enabled with
!           '-floop-block' or '-floop-strip-mine', strip mine each loop in
!           the loop nest by a given number of iterations.  The strip
!           length can be changed using the 'loop-block-tile-size'
            parameter.  The default value is 51 iterations.
  
!      'loop-unroll-jam-size'
!           Specify the unroll factor for the '-floop-unroll-and-jam'
            option.  The default value is 4.
  
!      'loop-unroll-jam-depth'
            Specify the dimension to be unrolled (counting from the most
!           inner loop) for the '-floop-unroll-and-jam'.  The default
            value is 2.
  
!      'ipa-cp-value-list-size'
            IPA-CP attempts to track all possible values and types passed
            to a function's parameter in order to propagate them and
!           perform devirtualization.  'ipa-cp-value-list-size' is the
            maximum number of values and types it stores per one formal
            parameter of a function.
  
!      'ipa-cp-eval-threshold'
            IPA-CP calculates its own score of cloning profitability
            heuristics and performs those cloning opportunities with
!           scores that exceed 'ipa-cp-eval-threshold'.
  
!      'ipa-cp-recursion-penalty'
            Percentage penalty the recursive functions will receive when
            they are evaluated for cloning.
  
!      'ipa-cp-single-call-penalty'
            Percentage penalty functions containg a single call to another
            function will receive when they are evaluated for cloning.
  
!      'ipa-max-agg-items'
            IPA-CP is also capable to propagate a number of scalar values
!           passed in an aggregate.  'ipa-max-agg-items' controls the
            maximum number of such values per one parameter.
  
!      'ipa-cp-loop-hint-bonus'
!           When IPA-CP determines that a cloning candidate would make the
!           number of iterations of a loop known, it adds a bonus of
!           'ipa-cp-loop-hint-bonus' to the profitability score of the
            candidate.
  
!      'ipa-cp-array-index-hint-bonus'
!           When IPA-CP determines that a cloning candidate would make the
!           index of an array access known, it adds a bonus of
!           'ipa-cp-array-index-hint-bonus' to the profitability score of
            the candidate.
  
!      'ipa-max-aa-steps'
            During its analysis of function bodies, IPA-CP employs alias
            analysis in order to track values pointed to by function
            parameters.  In order not spend too much time analyzing huge
!           functions, it gives up and consider all memory clobbered after
!           examining 'ipa-max-aa-steps' statements modifying memory.
  
!      'lto-partitions'
            Specify desired number of partitions produced during WHOPR
            compilation.  The number of partitions should exceed the
            number of CPUs used for compilation.  The default value is 32.
  
!      'lto-min-partition'
            Size of minimal partition for WHOPR (in estimated
!           instructions).  This prevents expenses of splitting very small
!           programs into too many partitions.
  
!      'cxx-max-namespaces-for-diagnostic-help'
            The maximum number of namespaces to consult for suggestions
            when C++ name lookup fails for an identifier.  The default is
            1000.
  
!      'sink-frequency-threshold'
            The maximum relative execution frequency (in percents) of the
!           target block relative to a statement's original block to allow
!           statement sinking of a statement.  Larger numbers result in
!           more aggressive statement sinking.  The default value is 75.
!           A small positive adjustment is applied for statements with
!           memory operands as those are even more profitable so sink.
  
!      'max-stores-to-sink'
            The maximum number of conditional store pairs that can be
!           sunk.  Set to 0 if either vectorization ('-ftree-vectorize')
!           or if-conversion ('-ftree-loop-if-convert') is disabled.  The
            default is 2.
  
!      'allow-store-data-races'
            Allow optimizers to introduce new data races on stores.  Set
            to 1 to allow, otherwise to 0.  This option is enabled by
!           default at optimization level '-Ofast'.
  
!      'case-values-threshold'
            The smallest number of different values for which it is best
!           to use a jump-table instead of a tree of conditional branches.
!           If the value is 0, use the default for the machine.  The
!           default is 0.
  
!      'tree-reassoc-width'
            Set the maximum number of instructions executed in parallel in
!           reassociated tree.  This parameter overrides target dependent
            heuristics used by default if has non zero value.
  
!      'sched-pressure-algorithm'
            Choose between the two available implementations of
!           '-fsched-pressure'.  Algorithm 1 is the original
            implementation and is the more likely to prevent instructions
            from being reordered.  Algorithm 2 was designed to be a
            compromise between the relatively conservative approach taken
!           by algorithm 1 and the rather aggressive approach taken by the
!           default scheduler.  It relies more heavily on having a regular
!           register file and accurate register pressure classes.  See
!           'haifa-sched.c' in the GCC sources for more details.
  
            The default choice depends on the target.
  
!      'max-slsr-cand-scan'
            Set the maximum number of existing candidates that are
            considered when seeking a basis for a new straight-line
            strength reduction candidate.
  
!      'asan-globals'
            Enable buffer overflow detection for global objects.  This
            kind of protection is enabled by default if you are using
!           '-fsanitize=address' option.  To disable global objects
!           protection use '--param asan-globals=0'.
  
!      'asan-stack'
!           Enable buffer overflow detection for stack objects.  This kind
!           of protection is enabled by default when using
!           '-fsanitize=address'.  To disable stack protection use
!           '--param asan-stack=0' option.
  
!      'asan-instrument-reads'
            Enable buffer overflow detection for memory reads.  This kind
            of protection is enabled by default when using
!           '-fsanitize=address'.  To disable memory reads protection use
!           '--param asan-instrument-reads=0'.
  
!      'asan-instrument-writes'
!           Enable buffer overflow detection for memory writes.  This kind
!           of protection is enabled by default when using
!           '-fsanitize=address'.  To disable memory writes protection use
!           '--param asan-instrument-writes=0' option.
  
!      'asan-memintrin'
            Enable detection for built-in functions.  This kind of
            protection is enabled by default when using
!           '-fsanitize=address'.  To disable built-in functions
!           protection use '--param asan-memintrin=0'.
  
!      'asan-use-after-return'
            Enable detection of use-after-return.  This kind of protection
!           is enabled by default when using '-fsanitize=address' option.
!           To disable use-after-return detection use '--param
            asan-use-after-return=0'.
  
!      'asan-instrumentation-with-call-threshold'
!           If number of memory accesses in function being instrumented is
!           greater or equal to this number, use callbacks instead of
!           inline checks.  E.g.  to disable inline code use '--param
            asan-instrumentation-with-call-threshold=0'.
  
!      'chkp-max-ctor-size'
            Static constructors generated by Pointer Bounds Checker may
            become very large and significantly increase compile time at
!           optimization level '-O1' and higher.  This parameter is a
            maximum nubmer of statements in a single generated
            constructor.  Default value is 5000.
  
!      'max-fsm-thread-path-insns'
!           Maximum number of instructions to copy when duplicating blocks
!           on a finite state automaton jump thread path.  The default is
!           100.
  
!      'max-fsm-thread-length'
            Maximum number of basic blocks on a finite state automaton
            jump thread path.  The default is 10.
  
!      'max-fsm-thread-paths'
!           Maximum number of new jump thread paths to create for a finite
!           state automaton.  The default is 50.
  
!      'parloops-chunk-size'
!           Chunk size of omp schedule for loops parallelized by parloops.
!           The default is 0.
  
!      'parloops-schedule'
            Schedule type of omp schedule for loops parallelized by
            parloops (static, dynamic, guided, auto, runtime).  The
            default is static.
  
!      'max-ssa-name-query-depth'
            Maximum depth of recursion when querying properties of SSA
            names in things like fold routines.  One level of recursion
            corresponds to following a use-def chain.
  
!      'hsa-gen-debug-stores'
            Enable emission of special debug stores within HSA kernels
            which are then read and reported by libgomp plugin.
            Generation of these stores is disabled by default, use
!           '--param hsa-gen-debug-stores=1' to enable it.
  
!      'max-speculative-devirt-maydefs'
            The maximum number of may-defs we analyze when looking for a
!           must-def specifying the dynamic type of an object that invokes
!           a virtual call we may be able to devirtualize speculatively.
  
  
  File: gcc.info,  Node: Instrumentation Options,  Next: Preprocessor Options,  Prev: Optimize Options,  Up: Invoking GCC
*************** hijacking.  There is also a general hook
*** 8992,9161 ****
  other forms of tracing or function-level instrumentation for debug or
  program analysis purposes.
  
! `-p'
       Generate extra code to write profile information suitable for the
!      analysis program `prof'.  You must use this option when compiling
       the source files you want data about, and you must also use it when
       linking.
  
! `-pg'
       Generate extra code to write profile information suitable for the
!      analysis program `gprof'.  You must use this option when compiling
       the source files you want data about, and you must also use it when
       linking.
  
! `-fprofile-arcs'
       Add code so that program flow "arcs" are instrumented.  During
       execution the program records how many times each branch and call
       is executed and how many times it is taken or returns.  When the
       compiled program exits it saves this data to a file called
!      `AUXNAME.gcda' for each source file.  The data may be used for
!      profile-directed optimizations (`-fbranch-probabilities'), or for
!      test coverage analysis (`-ftest-coverage').  Each object file's
       AUXNAME is generated from the name of the output file, if
       explicitly specified and it is not the final executable, otherwise
!      it is the basename of the source file.  In both cases any suffix
!      is removed (e.g. `foo.gcda' for input file `dir/foo.c', or
!      `dir/foo.gcda' for output file specified as `-o dir/foo.o').
!      *Note Cross-profiling::.
  
- `--coverage'
       This option is used to compile and link code instrumented for
!      coverage analysis.  The option is a synonym for `-fprofile-arcs'
!      `-ftest-coverage' (when compiling) and `-lgcov' (when linking).
       See the documentation for those options for more details.
  
!         * Compile the source files with `-fprofile-arcs' plus
            optimization and code generation options.  For test coverage
!           analysis, use the additional `-ftest-coverage' option.  You
!           do not need to profile every source file in a program.
  
!         * Link your object files with `-lgcov' or `-fprofile-arcs' (the
            latter implies the former).
  
          * Run the program on a representative workload to generate the
            arc profile information.  This may be repeated any number of
            times.  You can run concurrent instances of your program, and
!           provided that the file system supports locking, the data
!           files will be correctly updated.  Also `fork' calls are
!           detected and correctly handled (double counting will not
!           happen).
  
          * For profile-directed optimizations, compile the source files
            again with the same optimization and code generation options
!           plus `-fbranch-probabilities' (*note Options that Control
            Optimization: Optimize Options.).
  
!         * For test coverage analysis, use `gcov' to produce human
!           readable information from the `.gcno' and `.gcda' files.
!           Refer to the `gcov' documentation for further information.
! 
  
!      With `-fprofile-arcs', for each function of your program GCC
       creates a program flow graph, then finds a spanning tree for the
       graph.  Only arcs that are not on the spanning tree have to be
       instrumented: the compiler adds code to count the number of times
!      that these arcs are executed.  When an arc is the only exit or
!      only entrance to a block, the instrumentation code can be added to
!      the block; otherwise, a new basic block must be created to hold
!      the instrumentation code.
  
! `-ftest-coverage'
!      Produce a notes file that the `gcov' code-coverage utility (*note
!      `gcov'--a Test Coverage Program: Gcov.) can use to show program
!      coverage.  Each source file's note file is called `AUXNAME.gcno'.
!      Refer to the `-fprofile-arcs' option above for a description of
       AUXNAME and instructions on how to generate test coverage data.
       Coverage data matches the source files more closely if you do not
       optimize.
  
! `-fprofile-dir=PATH'
       Set the directory to search for the profile data files in to PATH.
       This option affects only the profile data generated by
!      `-fprofile-generate', `-ftest-coverage', `-fprofile-arcs' and used
!      by `-fprofile-use' and `-fbranch-probabilities' and its related
       options.  Both absolute and relative paths can be used.  By
       default, GCC uses the current directory as PATH, thus the profile
       data file appears in the same directory as the object file.
  
! `-fprofile-generate'
! `-fprofile-generate=PATH'
       Enable options usually used for instrumenting application to
       produce profile useful for later recompilation with profile
!      feedback based optimization.  You must use `-fprofile-generate'
       both when compiling and when linking your program.
  
!      The following options are enabled: `-fprofile-arcs',
!      `-fprofile-values', `-fvpt'.
  
       If PATH is specified, GCC looks at the PATH to find the profile
!      feedback data files. See `-fprofile-dir'.
  
!      To optimize the program based on the collected profile
!      information, use `-fprofile-use'.  *Note Optimize Options::, for
!      more information.
  
! `-fsanitize=address'
       Enable AddressSanitizer, a fast memory error detector.  Memory
       access instructions are instrumented to detect out-of-bounds and
       use-after-free bugs.  See
!      `https://github.com/google/sanitizers/wiki/AddressSanitizer' for
       more details.  The run-time behavior can be influenced using the
!      `ASAN_OPTIONS' environment variable.  When set to `help=1', the
!      available options are shown at startup of the instrumented
!      program.  See
!      `https://github.com/google/sanitizers/wiki/AddressSanitizerFlags#run-time-flags'
       for a list of supported options.
  
! `-fsanitize=kernel-address'
       Enable AddressSanitizer for Linux kernel.  See
!      `https://github.com/google/kasan/wiki' for more details.
  
! `-fsanitize=thread'
       Enable ThreadSanitizer, a fast data race detector.  Memory access
       instructions are instrumented to detect data race bugs.  See
!      `https://github.com/google/sanitizers/wiki#threadsanitizer' for
!      more details. The run-time behavior can be influenced using the
!      `TSAN_OPTIONS' environment variable; see
!      `https://github.com/google/sanitizers/wiki/ThreadSanitizerFlags'
       for a list of supported options.
  
! `-fsanitize=leak'
       Enable LeakSanitizer, a memory leak detector.  This option only
       matters for linking of executables and if neither
!      `-fsanitize=address' nor `-fsanitize=thread' is used.  In that
!      case the executable is linked against a library that overrides
!      `malloc' and other allocator functions.  See
!      `https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer'
       for more details.  The run-time behavior can be influenced using
!      the `LSAN_OPTIONS' environment variable.
  
! `-fsanitize=undefined'
       Enable UndefinedBehaviorSanitizer, a fast undefined behavior
       detector.  Various computations are instrumented to detect
       undefined behavior at runtime.  Current suboptions are:
  
!     `-fsanitize=shift'
            This option enables checking that the result of a shift
            operation is not undefined.  Note that what exactly is
            considered undefined differs slightly between C and C++, as
            well as between ISO C90 and C99, etc.
  
!     `-fsanitize=integer-divide-by-zero'
!           Detect integer division by zero as well as `INT_MIN / -1'
            division.
  
!     `-fsanitize=unreachable'
            With this option, the compiler turns the
!           `__builtin_unreachable' call into a diagnostics message call
!           instead.  When reaching the `__builtin_unreachable' call, the
            behavior is undefined.
  
!     `-fsanitize=vla-bound'
!           This option instructs the compiler to check that the size of
!           a variable length array is positive.
  
!     `-fsanitize=null'
            This option enables pointer checking.  Particularly, the
            application built with this option turned on will issue an
            error message when it tries to dereference a NULL pointer, or
--- 8954,9125 ----
  other forms of tracing or function-level instrumentation for debug or
  program analysis purposes.
  
! '-p'
       Generate extra code to write profile information suitable for the
!      analysis program 'prof'.  You must use this option when compiling
       the source files you want data about, and you must also use it when
       linking.
  
! '-pg'
       Generate extra code to write profile information suitable for the
!      analysis program 'gprof'.  You must use this option when compiling
       the source files you want data about, and you must also use it when
       linking.
  
! '-fprofile-arcs'
       Add code so that program flow "arcs" are instrumented.  During
       execution the program records how many times each branch and call
       is executed and how many times it is taken or returns.  When the
       compiled program exits it saves this data to a file called
!      'AUXNAME.gcda' for each source file.  The data may be used for
!      profile-directed optimizations ('-fbranch-probabilities'), or for
!      test coverage analysis ('-ftest-coverage').  Each object file's
       AUXNAME is generated from the name of the output file, if
       explicitly specified and it is not the final executable, otherwise
!      it is the basename of the source file.  In both cases any suffix is
!      removed (e.g. 'foo.gcda' for input file 'dir/foo.c', or
!      'dir/foo.gcda' for output file specified as '-o dir/foo.o').  *Note
!      Cross-profiling::.
! 
! '--coverage'
  
       This option is used to compile and link code instrumented for
!      coverage analysis.  The option is a synonym for '-fprofile-arcs'
!      '-ftest-coverage' (when compiling) and '-lgcov' (when linking).
       See the documentation for those options for more details.
  
!         * Compile the source files with '-fprofile-arcs' plus
            optimization and code generation options.  For test coverage
!           analysis, use the additional '-ftest-coverage' option.  You do
!           not need to profile every source file in a program.
  
!         * Link your object files with '-lgcov' or '-fprofile-arcs' (the
            latter implies the former).
  
          * Run the program on a representative workload to generate the
            arc profile information.  This may be repeated any number of
            times.  You can run concurrent instances of your program, and
!           provided that the file system supports locking, the data files
!           will be correctly updated.  Unless a strict ISO C dialect
!           option is in effect, 'fork' calls are detected and correctly
!           handled without double counting.
  
          * For profile-directed optimizations, compile the source files
            again with the same optimization and code generation options
!           plus '-fbranch-probabilities' (*note Options that Control
            Optimization: Optimize Options.).
  
!         * For test coverage analysis, use 'gcov' to produce human
!           readable information from the '.gcno' and '.gcda' files.
!           Refer to the 'gcov' documentation for further information.
  
!      With '-fprofile-arcs', for each function of your program GCC
       creates a program flow graph, then finds a spanning tree for the
       graph.  Only arcs that are not on the spanning tree have to be
       instrumented: the compiler adds code to count the number of times
!      that these arcs are executed.  When an arc is the only exit or only
!      entrance to a block, the instrumentation code can be added to the
!      block; otherwise, a new basic block must be created to hold the
!      instrumentation code.
  
! '-ftest-coverage'
!      Produce a notes file that the 'gcov' code-coverage utility (*note
!      'gcov'--a Test Coverage Program: Gcov.) can use to show program
!      coverage.  Each source file's note file is called 'AUXNAME.gcno'.
!      Refer to the '-fprofile-arcs' option above for a description of
       AUXNAME and instructions on how to generate test coverage data.
       Coverage data matches the source files more closely if you do not
       optimize.
  
! '-fprofile-dir=PATH'
! 
       Set the directory to search for the profile data files in to PATH.
       This option affects only the profile data generated by
!      '-fprofile-generate', '-ftest-coverage', '-fprofile-arcs' and used
!      by '-fprofile-use' and '-fbranch-probabilities' and its related
       options.  Both absolute and relative paths can be used.  By
       default, GCC uses the current directory as PATH, thus the profile
       data file appears in the same directory as the object file.
  
! '-fprofile-generate'
! '-fprofile-generate=PATH'
! 
       Enable options usually used for instrumenting application to
       produce profile useful for later recompilation with profile
!      feedback based optimization.  You must use '-fprofile-generate'
       both when compiling and when linking your program.
  
!      The following options are enabled: '-fprofile-arcs',
!      '-fprofile-values', '-fvpt'.
  
       If PATH is specified, GCC looks at the PATH to find the profile
!      feedback data files.  See '-fprofile-dir'.
  
!      To optimize the program based on the collected profile information,
!      use '-fprofile-use'.  *Note Optimize Options::, for more
!      information.
  
! '-fsanitize=address'
       Enable AddressSanitizer, a fast memory error detector.  Memory
       access instructions are instrumented to detect out-of-bounds and
       use-after-free bugs.  See
!      <https://github.com/google/sanitizers/wiki/AddressSanitizer> for
       more details.  The run-time behavior can be influenced using the
!      'ASAN_OPTIONS' environment variable.  When set to 'help=1', the
!      available options are shown at startup of the instrumented program.
!      See
!      <https://github.com/google/sanitizers/wiki/AddressSanitizerFlags#run-time-flags>
       for a list of supported options.
  
! '-fsanitize=kernel-address'
       Enable AddressSanitizer for Linux kernel.  See
!      <https://github.com/google/kasan/wiki> for more details.
  
! '-fsanitize=thread'
       Enable ThreadSanitizer, a fast data race detector.  Memory access
       instructions are instrumented to detect data race bugs.  See
!      <https://github.com/google/sanitizers/wiki#threadsanitizer> for
!      more details.  The run-time behavior can be influenced using the
!      'TSAN_OPTIONS' environment variable; see
!      <https://github.com/google/sanitizers/wiki/ThreadSanitizerFlags>
       for a list of supported options.
  
! '-fsanitize=leak'
       Enable LeakSanitizer, a memory leak detector.  This option only
       matters for linking of executables and if neither
!      '-fsanitize=address' nor '-fsanitize=thread' is used.  In that case
!      the executable is linked against a library that overrides 'malloc'
!      and other allocator functions.  See
!      <https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer>
       for more details.  The run-time behavior can be influenced using
!      the 'LSAN_OPTIONS' environment variable.
  
! '-fsanitize=undefined'
       Enable UndefinedBehaviorSanitizer, a fast undefined behavior
       detector.  Various computations are instrumented to detect
       undefined behavior at runtime.  Current suboptions are:
  
!      '-fsanitize=shift'
            This option enables checking that the result of a shift
            operation is not undefined.  Note that what exactly is
            considered undefined differs slightly between C and C++, as
            well as between ISO C90 and C99, etc.
  
!      '-fsanitize=integer-divide-by-zero'
!           Detect integer division by zero as well as 'INT_MIN / -1'
            division.
  
!      '-fsanitize=unreachable'
            With this option, the compiler turns the
!           '__builtin_unreachable' call into a diagnostics message call
!           instead.  When reaching the '__builtin_unreachable' call, the
            behavior is undefined.
  
!      '-fsanitize=vla-bound'
!           This option instructs the compiler to check that the size of a
!           variable length array is positive.
  
!      '-fsanitize=null'
            This option enables pointer checking.  Particularly, the
            application built with this option turned on will issue an
            error message when it tries to dereference a NULL pointer, or
*************** program analysis purposes.
*** 9163,9465 ****
            NULL pointer, or if a method is invoked on an object pointed
            by a NULL pointer.
  
!     `-fsanitize=return'
!           This option enables return statement checking.  Programs
!           built with this option turned on will issue an error message
!           when the end of a non-void function is reached without
!           actually returning a value.  This option works in C++ only.
  
!     `-fsanitize=signed-integer-overflow'
            This option enables signed integer overflow checking.  We
!           check that the result of `+', `*', and both unary and binary
!           `-' does not overflow in the signed arithmetics.  Note,
            integer promotion rules must be taken into account.  That is,
            the following is not an overflow:
                 signed char a = SCHAR_MAX;
                 a++;
  
!     `-fsanitize=bounds'
            This option enables instrumentation of array bounds.  Various
            out of bounds accesses are detected.  Flexible array members,
            flexible array member-like arrays, and initializers of
            variables with static storage are not instrumented.
  
!     `-fsanitize=bounds-strict'
            This option enables strict instrumentation of array bounds.
            Most out of bounds accesses are detected, including flexible
            array members and flexible array member-like arrays.
            Initializers of variables with static storage are not
            instrumented.
  
!     `-fsanitize=alignment'
            This option enables checking of alignment of pointers when
            they are dereferenced, or when a reference is bound to
!           insufficiently aligned target, or when a method or
!           constructor is invoked on insufficiently aligned object.
  
!     `-fsanitize=object-size'
!           This option enables instrumentation of memory references
!           using the `__builtin_object_size' function.  Various out of
!           bounds pointer accesses are detected.
  
!     `-fsanitize=float-divide-by-zero'
            Detect floating-point division by zero.  Unlike other similar
!           options, `-fsanitize=float-divide-by-zero' is not enabled by
!           `-fsanitize=undefined', since floating-point division by zero
            can be a legitimate way of obtaining infinities and NaNs.
  
!     `-fsanitize=float-cast-overflow'
            This option enables floating-point type to integer conversion
!           checking.  We check that the result of the conversion does
!           not overflow.  Unlike other similar options,
!           `-fsanitize=float-cast-overflow' is not enabled by
!           `-fsanitize=undefined'.  This option does not work well with
!           `FE_INVALID' exceptions enabled.
  
!     `-fsanitize=nonnull-attribute'
!           This option enables instrumentation of calls, checking
!           whether null values are not passed to arguments marked as
!           requiring a non-null value by the `nonnull' function
!           attribute.
  
-     `-fsanitize=returns-nonnull-attribute'
            This option enables instrumentation of return statements in
!           functions marked with `returns_nonnull' function attribute,
!           to detect returning of null values from such functions.
  
-     `-fsanitize=bool'
            This option enables instrumentation of loads from bool.  If a
            value other than 0/1 is loaded, a run-time error is issued.
  
!     `-fsanitize=enum'
            This option enables instrumentation of loads from an enum
            type.  If a value outside the range of values for the enum
            type is loaded, a run-time error is issued.
  
!     `-fsanitize=vptr'
            This option enables instrumentation of C++ member function
            calls, member accesses and some conversions between pointers
            to base and derived classes, to verify the referenced object
            has the correct dynamic type.
  
! 
!      While `-ftrapv' causes traps for signed overflows to be emitted,
!      `-fsanitize=undefined' gives a diagnostic message.  This currently
       works only for the C family of languages.
  
! `-fno-sanitize=all'
       This option disables all previously enabled sanitizers.
!      `-fsanitize=all' is not allowed, as some sanitizers cannot be used
       together.
  
! `-fasan-shadow-offset=NUMBER'
       This option forces GCC to use custom shadow offset in
       AddressSanitizer checks.  It is useful for experimenting with
       different shadow memory layouts in Kernel AddressSanitizer.
  
! `-fsanitize-sections=S1,S2,...'
       Sanitize global variables in selected user-defined sections.  SI
       may contain wildcards.
  
! `-fsanitize-recover[=OPTS]'
!      `-fsanitize-recover=' controls error recovery mode for sanitizers
       mentioned in comma-separated list of OPTS.  Enabling this option
       for a sanitizer component causes it to attempt to continue running
       the program as if no error happened.  This means multiple runtime
       errors can be reported in a single program run, and the exit code
       of the program may indicate success even when errors have been
!      reported.  The `-fno-sanitize-recover=' option can be used to alter
       this behavior: only the first detected error is reported and
       program then exits with a non-zero exit code.
  
!      Currently this feature only works for `-fsanitize=undefined' (and
!      its suboptions except for `-fsanitize=unreachable' and
!      `-fsanitize=return'), `-fsanitize=float-cast-overflow',
!      `-fsanitize=float-divide-by-zero', `-fsanitize=kernel-address' and
!      `-fsanitize=address'.  For these sanitizers error recovery is
!      turned on by default, except `-fsanitize=address', for which this
!      feature is experimental.  `-fsanitize-recover=all' and
!      `-fno-sanitize-recover=all' is also accepted, the former enables
       recovery for all sanitizers that support it, the latter disables
       recovery for all sanitizers that support it.
  
       Syntax without explicit OPTS parameter is deprecated.  It is
       equivalent to
            -fsanitize-recover=undefined,float-cast-overflow,float-divide-by-zero
!      Similarly `-fno-sanitize-recover' is equivalent to
            -fno-sanitize-recover=undefined,float-cast-overflow,float-divide-by-zero
  
! `-fsanitize-undefined-trap-on-error'
!      The `-fsanitize-undefined-trap-on-error' option instructs the
!      compiler to report undefined behavior using `__builtin_trap'
!      rather than a `libubsan' library routine.  The advantage of this
!      is that the `libubsan' library is not needed and is not linked in,
!      so this is usable even in freestanding environments.
  
! `-fsanitize-coverage=trace-pc'
       Enable coverage-guided fuzzing code instrumentation.  Inserts a
!      call to `__sanitizer_cov_trace_pc' into every basic block.
  
! `-fbounds-check'
       For front ends that support it, generate additional code to check
       that indices used to access arrays are within the declared range.
       This is currently only supported by the Java and Fortran front
       ends, where this option defaults to true and false respectively.
  
! `-fcheck-pointer-bounds'
       Enable Pointer Bounds Checker instrumentation.  Each memory
       reference is instrumented with checks of the pointer used for
       memory access against bounds associated with that pointer.
  
       Currently there is only an implementation for Intel MPX available,
!      thus x86 GNU/Linux target and `-mmpx' are required to enable this
       feature.  MPX-based instrumentation requires a runtime library to
       enable MPX in hardware and handle bounds violation signals.  By
!      default when `-fcheck-pointer-bounds' and `-mmpx' options are used
!      to link a program, the GCC driver links against the `libmpx' and
!      `libmpxwrappers' libraries.  Bounds checking on calls to dynamic
!      libraries requires a linker with `-z bndplt' support; if GCC was
!      configured with a linker without support for this option
!      (including the Gold linker and older versions of ld), a warning is
!      given if you link with `-mmpx' without also specifying `-static',
!      since the overall effectiveness of the bounds checking protection
!      is reduced.  See also `-static-libmpxwrappers'.
  
!      MPX-based instrumentation may be used for debugging and also may
!      be included in production code to increase program security.
       Depending on usage, you may have different requirements for the
!      runtime library.  The current version of the MPX runtime library
!      is more oriented for use as a debugging tool.  MPX runtime library
!      usage implies `-lpthread'.  See also `-static-libmpx'.  The
!      runtime library  behavior can be influenced using various
!      `CHKP_RT_*' environment variables.  See
!      `https://gcc.gnu.org/wiki/Intel%20MPX%20support%20in%20the%20GCC%20compiler'
       for more details.
  
!      Generated instrumentation may be controlled by various `-fchkp-*'
!      options and by the `bnd_variable_size' structure field attribute
!      (*note Type Attributes::) and `bnd_legacy', and `bnd_instrument'
       function attributes (*note Function Attributes::).  GCC also
!      provides a number of built-in functions for controlling the
!      Pointer Bounds Checker.  *Note Pointer Bounds Checker builtins::,
!      for more information.
  
! `-fchkp-check-incomplete-type'
       Generate pointer bounds checks for variables with incomplete type.
       Enabled by default.
  
! `-fchkp-narrow-bounds'
       Controls bounds used by Pointer Bounds Checker for pointers to
!      object fields.  If narrowing is enabled then field bounds are
!      used.  Otherwise object bounds are used.  See also
!      `-fchkp-narrow-to-innermost-array' and
!      `-fchkp-first-field-has-own-bounds'.  Enabled by default.
  
! `-fchkp-first-field-has-own-bounds'
       Forces Pointer Bounds Checker to use narrowed bounds for the
       address of the first field in the structure.  By default a pointer
       to the first field has the same bounds as a pointer to the whole
       structure.
  
! `-fchkp-narrow-to-innermost-array'
!      Forces Pointer Bounds Checker to use bounds of the innermost
!      arrays in case of nested static array access.  By default this
!      option is disabled and bounds of the outermost array are used.
  
! `-fchkp-optimize'
       Enables Pointer Bounds Checker optimizations.  Enabled by default
!      at optimization levels `-O', `-O2', `-O3'.
  
! `-fchkp-use-fast-string-functions'
!      Enables use of `*_nobnd' versions of string functions (not copying
       bounds) by Pointer Bounds Checker.  Disabled by default.
  
! `-fchkp-use-nochk-string-functions'
!      Enables use of `*_nochk' versions of string functions (not
!      checking bounds) by Pointer Bounds Checker.  Disabled by default.
  
! `-fchkp-use-static-bounds'
       Allow Pointer Bounds Checker to generate static bounds holding
       bounds of static variables.  Enabled by default.
  
! `-fchkp-use-static-const-bounds'
       Use statically-initialized bounds for constant bounds instead of
       generating them each time they are required.  By default enabled
!      when `-fchkp-use-static-bounds' is enabled.
  
! `-fchkp-treat-zero-dynamic-size-as-infinite'
       With this option, objects with incomplete type whose
       dynamically-obtained size is zero are treated as having infinite
!      size instead by Pointer Bounds Checker.  This option may be
!      helpful if a program is linked with a library missing size
!      information for some symbols.  Disabled by default.
  
! `-fchkp-check-read'
       Instructs Pointer Bounds Checker to generate checks for all read
       accesses to memory.  Enabled by default.
  
! `-fchkp-check-write'
       Instructs Pointer Bounds Checker to generate checks for all write
       accesses to memory.  Enabled by default.
  
! `-fchkp-store-bounds'
       Instructs Pointer Bounds Checker to generate bounds stores for
       pointer writes.  Enabled by default.
  
! `-fchkp-instrument-calls'
       Instructs Pointer Bounds Checker to pass pointer bounds to calls.
       Enabled by default.
  
! `-fchkp-instrument-marked-only'
       Instructs Pointer Bounds Checker to instrument only functions
!      marked with the `bnd_instrument' attribute (*note Function
       Attributes::).  Disabled by default.
  
! `-fchkp-use-wrappers'
       Allows Pointer Bounds Checker to replace calls to built-in
       functions with calls to wrapper functions.  When
!      `-fchkp-use-wrappers' is used to link a program, the GCC driver
!      automatically links against `libmpxwrappers'.  See also
!      `-static-libmpxwrappers'.  Enabled by default.
  
! `-fstack-protector'
       Emit extra code to check for buffer overflows, such as stack
       smashing attacks.  This is done by adding a guard variable to
       functions with vulnerable objects.  This includes functions that
!      call `alloca', and functions with buffers larger than 8 bytes.
!      The guards are initialized when a function is entered and then
!      checked when the function exits.  If a guard check fails, an error
!      message is printed and the program exits.
  
! `-fstack-protector-all'
!      Like `-fstack-protector' except that all functions are protected.
  
! `-fstack-protector-strong'
!      Like `-fstack-protector' but includes additional functions to be
       protected -- those that have local array definitions, or have
       references to local frame addresses.
  
! `-fstack-protector-explicit'
!      Like `-fstack-protector' but only protects those functions which
!      have the `stack_protect' attribute.
  
! `-fstack-check'
       Generate code to verify that you do not go beyond the boundary of
       the stack.  You should specify this flag if you are running in an
       environment with multiple threads, but you only rarely need to
!      specify it in a single-threaded environment since stack overflow
!      is automatically detected on nearly all systems if there is only
!      one stack.
  
       Note that this switch does not actually cause checking to be done;
       the operating system or the language runtime must do that.  The
       switch causes generation of code to ensure that they see the stack
       being extended.
  
!      You can additionally specify a string parameter: `no' means no
!      checking, `generic' means force the use of old-style checking,
!      `specific' means use the best checking method and is equivalent to
!      bare `-fstack-check'.
  
       Old-style checking is a generic mechanism that requires no specific
       target support in the compiler but comes with the following
--- 9127,9434 ----
            NULL pointer, or if a method is invoked on an object pointed
            by a NULL pointer.
  
!      '-fsanitize=return'
!           This option enables return statement checking.  Programs built
!           with this option turned on will issue an error message when
!           the end of a non-void function is reached without actually
!           returning a value.  This option works in C++ only.
  
!      '-fsanitize=signed-integer-overflow'
            This option enables signed integer overflow checking.  We
!           check that the result of '+', '*', and both unary and binary
!           '-' does not overflow in the signed arithmetics.  Note,
            integer promotion rules must be taken into account.  That is,
            the following is not an overflow:
                 signed char a = SCHAR_MAX;
                 a++;
  
!      '-fsanitize=bounds'
            This option enables instrumentation of array bounds.  Various
            out of bounds accesses are detected.  Flexible array members,
            flexible array member-like arrays, and initializers of
            variables with static storage are not instrumented.
  
!      '-fsanitize=bounds-strict'
            This option enables strict instrumentation of array bounds.
            Most out of bounds accesses are detected, including flexible
            array members and flexible array member-like arrays.
            Initializers of variables with static storage are not
            instrumented.
  
!      '-fsanitize=alignment'
! 
            This option enables checking of alignment of pointers when
            they are dereferenced, or when a reference is bound to
!           insufficiently aligned target, or when a method or constructor
!           is invoked on insufficiently aligned object.
  
!      '-fsanitize=object-size'
!           This option enables instrumentation of memory references using
!           the '__builtin_object_size' function.  Various out of bounds
!           pointer accesses are detected.
  
!      '-fsanitize=float-divide-by-zero'
            Detect floating-point division by zero.  Unlike other similar
!           options, '-fsanitize=float-divide-by-zero' is not enabled by
!           '-fsanitize=undefined', since floating-point division by zero
            can be a legitimate way of obtaining infinities and NaNs.
  
!      '-fsanitize=float-cast-overflow'
            This option enables floating-point type to integer conversion
!           checking.  We check that the result of the conversion does not
!           overflow.  Unlike other similar options,
!           '-fsanitize=float-cast-overflow' is not enabled by
!           '-fsanitize=undefined'.  This option does not work well with
!           'FE_INVALID' exceptions enabled.
  
!      '-fsanitize=nonnull-attribute'
! 
!           This option enables instrumentation of calls, checking whether
!           null values are not passed to arguments marked as requiring a
!           non-null value by the 'nonnull' function attribute.
! 
!      '-fsanitize=returns-nonnull-attribute'
  
            This option enables instrumentation of return statements in
!           functions marked with 'returns_nonnull' function attribute, to
!           detect returning of null values from such functions.
! 
!      '-fsanitize=bool'
  
            This option enables instrumentation of loads from bool.  If a
            value other than 0/1 is loaded, a run-time error is issued.
  
!      '-fsanitize=enum'
! 
            This option enables instrumentation of loads from an enum
            type.  If a value outside the range of values for the enum
            type is loaded, a run-time error is issued.
  
!      '-fsanitize=vptr'
! 
            This option enables instrumentation of C++ member function
            calls, member accesses and some conversions between pointers
            to base and derived classes, to verify the referenced object
            has the correct dynamic type.
  
!      While '-ftrapv' causes traps for signed overflows to be emitted,
!      '-fsanitize=undefined' gives a diagnostic message.  This currently
       works only for the C family of languages.
  
! '-fno-sanitize=all'
! 
       This option disables all previously enabled sanitizers.
!      '-fsanitize=all' is not allowed, as some sanitizers cannot be used
       together.
  
! '-fasan-shadow-offset=NUMBER'
       This option forces GCC to use custom shadow offset in
       AddressSanitizer checks.  It is useful for experimenting with
       different shadow memory layouts in Kernel AddressSanitizer.
  
! '-fsanitize-sections=S1,S2,...'
       Sanitize global variables in selected user-defined sections.  SI
       may contain wildcards.
  
! '-fsanitize-recover[=OPTS]'
!      '-fsanitize-recover=' controls error recovery mode for sanitizers
       mentioned in comma-separated list of OPTS.  Enabling this option
       for a sanitizer component causes it to attempt to continue running
       the program as if no error happened.  This means multiple runtime
       errors can be reported in a single program run, and the exit code
       of the program may indicate success even when errors have been
!      reported.  The '-fno-sanitize-recover=' option can be used to alter
       this behavior: only the first detected error is reported and
       program then exits with a non-zero exit code.
  
!      Currently this feature only works for '-fsanitize=undefined' (and
!      its suboptions except for '-fsanitize=unreachable' and
!      '-fsanitize=return'), '-fsanitize=float-cast-overflow',
!      '-fsanitize=float-divide-by-zero', '-fsanitize=kernel-address' and
!      '-fsanitize=address'.  For these sanitizers error recovery is
!      turned on by default, except '-fsanitize=address', for which this
!      feature is experimental.  '-fsanitize-recover=all' and
!      '-fno-sanitize-recover=all' is also accepted, the former enables
       recovery for all sanitizers that support it, the latter disables
       recovery for all sanitizers that support it.
  
       Syntax without explicit OPTS parameter is deprecated.  It is
       equivalent to
            -fsanitize-recover=undefined,float-cast-overflow,float-divide-by-zero
!      Similarly '-fno-sanitize-recover' is equivalent to
            -fno-sanitize-recover=undefined,float-cast-overflow,float-divide-by-zero
  
! '-fsanitize-undefined-trap-on-error'
!      The '-fsanitize-undefined-trap-on-error' option instructs the
!      compiler to report undefined behavior using '__builtin_trap' rather
!      than a 'libubsan' library routine.  The advantage of this is that
!      the 'libubsan' library is not needed and is not linked in, so this
!      is usable even in freestanding environments.
  
! '-fsanitize-coverage=trace-pc'
       Enable coverage-guided fuzzing code instrumentation.  Inserts a
!      call to '__sanitizer_cov_trace_pc' into every basic block.
  
! '-fbounds-check'
       For front ends that support it, generate additional code to check
       that indices used to access arrays are within the declared range.
       This is currently only supported by the Java and Fortran front
       ends, where this option defaults to true and false respectively.
  
! '-fcheck-pointer-bounds'
       Enable Pointer Bounds Checker instrumentation.  Each memory
       reference is instrumented with checks of the pointer used for
       memory access against bounds associated with that pointer.
  
       Currently there is only an implementation for Intel MPX available,
!      thus x86 GNU/Linux target and '-mmpx' are required to enable this
       feature.  MPX-based instrumentation requires a runtime library to
       enable MPX in hardware and handle bounds violation signals.  By
!      default when '-fcheck-pointer-bounds' and '-mmpx' options are used
!      to link a program, the GCC driver links against the 'libmpx' and
!      'libmpxwrappers' libraries.  Bounds checking on calls to dynamic
!      libraries requires a linker with '-z bndplt' support; if GCC was
!      configured with a linker without support for this option (including
!      the Gold linker and older versions of ld), a warning is given if
!      you link with '-mmpx' without also specifying '-static', since the
!      overall effectiveness of the bounds checking protection is reduced.
!      See also '-static-libmpxwrappers'.
  
!      MPX-based instrumentation may be used for debugging and also may be
!      included in production code to increase program security.
       Depending on usage, you may have different requirements for the
!      runtime library.  The current version of the MPX runtime library is
!      more oriented for use as a debugging tool.  MPX runtime library
!      usage implies '-lpthread'.  See also '-static-libmpx'.  The runtime
!      library behavior can be influenced using various 'CHKP_RT_*'
!      environment variables.  See
!      <https://gcc.gnu.org/wiki/Intel%20MPX%20support%20in%20the%20GCC%20compiler>
       for more details.
  
!      Generated instrumentation may be controlled by various '-fchkp-*'
!      options and by the 'bnd_variable_size' structure field attribute
!      (*note Type Attributes::) and 'bnd_legacy', and 'bnd_instrument'
       function attributes (*note Function Attributes::).  GCC also
!      provides a number of built-in functions for controlling the Pointer
!      Bounds Checker.  *Note Pointer Bounds Checker builtins::, for more
!      information.
  
! '-fchkp-check-incomplete-type'
       Generate pointer bounds checks for variables with incomplete type.
       Enabled by default.
  
! '-fchkp-narrow-bounds'
       Controls bounds used by Pointer Bounds Checker for pointers to
!      object fields.  If narrowing is enabled then field bounds are used.
!      Otherwise object bounds are used.  See also
!      '-fchkp-narrow-to-innermost-array' and
!      '-fchkp-first-field-has-own-bounds'.  Enabled by default.
  
! '-fchkp-first-field-has-own-bounds'
       Forces Pointer Bounds Checker to use narrowed bounds for the
       address of the first field in the structure.  By default a pointer
       to the first field has the same bounds as a pointer to the whole
       structure.
  
! '-fchkp-narrow-to-innermost-array'
!      Forces Pointer Bounds Checker to use bounds of the innermost arrays
!      in case of nested static array access.  By default this option is
!      disabled and bounds of the outermost array are used.
  
! '-fchkp-optimize'
       Enables Pointer Bounds Checker optimizations.  Enabled by default
!      at optimization levels '-O', '-O2', '-O3'.
  
! '-fchkp-use-fast-string-functions'
!      Enables use of '*_nobnd' versions of string functions (not copying
       bounds) by Pointer Bounds Checker.  Disabled by default.
  
! '-fchkp-use-nochk-string-functions'
!      Enables use of '*_nochk' versions of string functions (not checking
!      bounds) by Pointer Bounds Checker.  Disabled by default.
  
! '-fchkp-use-static-bounds'
       Allow Pointer Bounds Checker to generate static bounds holding
       bounds of static variables.  Enabled by default.
  
! '-fchkp-use-static-const-bounds'
       Use statically-initialized bounds for constant bounds instead of
       generating them each time they are required.  By default enabled
!      when '-fchkp-use-static-bounds' is enabled.
  
! '-fchkp-treat-zero-dynamic-size-as-infinite'
       With this option, objects with incomplete type whose
       dynamically-obtained size is zero are treated as having infinite
!      size instead by Pointer Bounds Checker.  This option may be helpful
!      if a program is linked with a library missing size information for
!      some symbols.  Disabled by default.
  
! '-fchkp-check-read'
       Instructs Pointer Bounds Checker to generate checks for all read
       accesses to memory.  Enabled by default.
  
! '-fchkp-check-write'
       Instructs Pointer Bounds Checker to generate checks for all write
       accesses to memory.  Enabled by default.
  
! '-fchkp-store-bounds'
       Instructs Pointer Bounds Checker to generate bounds stores for
       pointer writes.  Enabled by default.
  
! '-fchkp-instrument-calls'
       Instructs Pointer Bounds Checker to pass pointer bounds to calls.
       Enabled by default.
  
! '-fchkp-instrument-marked-only'
       Instructs Pointer Bounds Checker to instrument only functions
!      marked with the 'bnd_instrument' attribute (*note Function
       Attributes::).  Disabled by default.
  
! '-fchkp-use-wrappers'
       Allows Pointer Bounds Checker to replace calls to built-in
       functions with calls to wrapper functions.  When
!      '-fchkp-use-wrappers' is used to link a program, the GCC driver
!      automatically links against 'libmpxwrappers'.  See also
!      '-static-libmpxwrappers'.  Enabled by default.
  
! '-fstack-protector'
       Emit extra code to check for buffer overflows, such as stack
       smashing attacks.  This is done by adding a guard variable to
       functions with vulnerable objects.  This includes functions that
!      call 'alloca', and functions with buffers larger than 8 bytes.  The
!      guards are initialized when a function is entered and then checked
!      when the function exits.  If a guard check fails, an error message
!      is printed and the program exits.
  
! '-fstack-protector-all'
!      Like '-fstack-protector' except that all functions are protected.
  
! '-fstack-protector-strong'
!      Like '-fstack-protector' but includes additional functions to be
       protected -- those that have local array definitions, or have
       references to local frame addresses.
  
! '-fstack-protector-explicit'
!      Like '-fstack-protector' but only protects those functions which
!      have the 'stack_protect' attribute.
  
! '-fstack-check'
       Generate code to verify that you do not go beyond the boundary of
       the stack.  You should specify this flag if you are running in an
       environment with multiple threads, but you only rarely need to
!      specify it in a single-threaded environment since stack overflow is
!      automatically detected on nearly all systems if there is only one
!      stack.
  
       Note that this switch does not actually cause checking to be done;
       the operating system or the language runtime must do that.  The
       switch causes generation of code to ensure that they see the stack
       being extended.
  
!      You can additionally specify a string parameter: 'no' means no
!      checking, 'generic' means force the use of old-style checking,
!      'specific' means use the best checking method and is equivalent to
!      bare '-fstack-check'.
  
       Old-style checking is a generic mechanism that requires no specific
       target support in the compiler but comes with the following
*************** program analysis purposes.
*** 9469,9488 ****
            always allocated dynamically if their size exceeds a fixed
            threshold.
  
!        2. Fixed limit on the size of the static frame of functions:
!           when it is topped by a particular function, stack checking is
!           not reliable and a warning is issued by the compiler.
  
!        3. Inefficiency: because of both the modified allocation
!           strategy and the generic implementation, code performance is
!           hampered.
  
       Note that old-style stack checking is also the fallback method for
!      `specific' if no target support has been added in the compiler.
  
! `-fstack-limit-register=REG'
! `-fstack-limit-symbol=SYM'
! `-fno-stack-limit'
       Generate code to ensure that the stack does not grow beyond a
       certain value, either the value of a register or the address of a
       symbol.  If a larger stack is required, a signal is raised at run
--- 9438,9456 ----
            always allocated dynamically if their size exceeds a fixed
            threshold.
  
!        2. Fixed limit on the size of the static frame of functions: when
!           it is topped by a particular function, stack checking is not
!           reliable and a warning is issued by the compiler.
  
!        3. Inefficiency: because of both the modified allocation strategy
!           and the generic implementation, code performance is hampered.
  
       Note that old-style stack checking is also the fallback method for
!      'specific' if no target support has been added in the compiler.
  
! '-fstack-limit-register=REG'
! '-fstack-limit-symbol=SYM'
! '-fno-stack-limit'
       Generate code to ensure that the stack does not grow beyond a
       certain value, either the value of a register or the address of a
       symbol.  If a larger stack is required, a signal is raised at run
*************** program analysis purposes.
*** 9490,9505 ****
       overruns the boundary, so it is possible to catch the signal
       without taking special precautions.
  
!      For instance, if the stack starts at absolute address `0x80000000'
       and grows downwards, you can use the flags
!      `-fstack-limit-symbol=__stack_limit' and
!      `-Wl,--defsym,__stack_limit=0x7ffe0000' to enforce a stack limit
!      of 128KB.  Note that this may only work with the GNU linker.
  
       You can locally override stack limit checking by using the
!      `no_stack_limit' function attribute (*note Function Attributes::).
  
! `-fsplit-stack'
       Generate code to automatically split the stack before it overflows.
       The resulting program has a discontiguous stack which can only
       overflow if the program is unable to allocate any more memory.
--- 9458,9473 ----
       overruns the boundary, so it is possible to catch the signal
       without taking special precautions.
  
!      For instance, if the stack starts at absolute address '0x80000000'
       and grows downwards, you can use the flags
!      '-fstack-limit-symbol=__stack_limit' and
!      '-Wl,--defsym,__stack_limit=0x7ffe0000' to enforce a stack limit of
!      128KB.  Note that this may only work with the GNU linker.
  
       You can locally override stack limit checking by using the
!      'no_stack_limit' function attribute (*note Function Attributes::).
  
! '-fsplit-stack'
       Generate code to automatically split the stack before it overflows.
       The resulting program has a discontiguous stack which can only
       overflow if the program is unable to allocate any more memory.
*************** program analysis purposes.
*** 9508,9581 ****
       thread.  This is currently only implemented for the x86 targets
       running GNU/Linux.
  
!      When code compiled with `-fsplit-stack' calls code compiled
!      without `-fsplit-stack', there may not be much stack space
!      available for the latter code to run.  If compiling all code,
!      including library code, with `-fsplit-stack' is not an option,
!      then the linker can fix up these calls so that the code compiled
!      without `-fsplit-stack' always has a large stack.  Support for
!      this is implemented in the gold linker in GNU binutils release 2.21
!      and later.
  
! `-fvtable-verify=[std|preinit|none]'
!      This option is only available when compiling C++ code.  It turns
!      on (or off, if using `-fvtable-verify=none') the security feature
!      that verifies at run time, for every virtual call, that the vtable
!      pointer through which the call is made is valid for the type of
!      the object, and has not been corrupted or overwritten.  If an
!      invalid vtable pointer is detected at run time, an error is
!      reported and execution of the program is immediately halted.
  
       This option causes run-time data structures to be built at program
       startup, which are used for verifying the vtable pointers.  The
!      options `std' and `preinit' control the timing of when these data
       structures are built.  In both cases the data structures are built
!      before execution reaches `main'.  Using `-fvtable-verify=std'
       causes the data structures to be built after shared libraries have
!      been loaded and initialized.  `-fvtable-verify=preinit' causes
!      them to be built before shared libraries have been loaded and
       initialized.
  
       If this option appears multiple times in the command line with
!      different values specified, `none' takes highest priority over
!      both `std' and `preinit'; `preinit' takes priority over `std'.
  
! `-fvtv-debug'
!      When used in conjunction with `-fvtable-verify=std' or
!      `-fvtable-verify=preinit', causes debug versions of the runtime
       functions for the vtable verification feature to be called.  This
!      flag also causes the compiler to log information about which
!      vtable pointers it finds for each class.  This information is
!      written to a file named `vtv_set_ptr_data.log' in the directory
!      named by the environment variable `VTV_LOGS_DIR' if that is
!      defined or the current working directory otherwise.
  
!      Note:  This feature _appends_ data to the log file. If you want a
       fresh log file, be sure to delete any existing one.
  
! `-fvtv-counts'
       This is a debugging flag.  When used in conjunction with
!      `-fvtable-verify=std' or `-fvtable-verify=preinit', this causes
!      the compiler to keep track of the total number of virtual calls it
       encounters and the number of verifications it inserts.  It also
       counts the number of calls to certain run-time library functions
       that it inserts and logs this information for each compilation
       unit.  The compiler writes this information to a file named
!      `vtv_count_data.log' in the directory named by the environment
!      variable `VTV_LOGS_DIR' if that is defined or the current working
!      directory otherwise.  It also counts the size of the vtable
!      pointer sets for each class, and writes this information to
!      `vtv_class_set_sizes.log' in the same directory.
  
!      Note:  This feature _appends_ data to the log files.  To get fresh
       log files, be sure to delete any existing ones.
  
! `-finstrument-functions'
       Generate instrumentation calls for entry and exit to functions.
       Just after function entry and just before function exit, the
       following profiling functions are called with the address of the
       current function and its call site.  (On some platforms,
!      `__builtin_return_address' does not work beyond the current
       function, so the call site information may not be available to the
       profiling functions otherwise.)
  
--- 9476,9549 ----
       thread.  This is currently only implemented for the x86 targets
       running GNU/Linux.
  
!      When code compiled with '-fsplit-stack' calls code compiled without
!      '-fsplit-stack', there may not be much stack space available for
!      the latter code to run.  If compiling all code, including library
!      code, with '-fsplit-stack' is not an option, then the linker can
!      fix up these calls so that the code compiled without
!      '-fsplit-stack' always has a large stack.  Support for this is
!      implemented in the gold linker in GNU binutils release 2.21 and
!      later.
  
! '-fvtable-verify=[std|preinit|none]'
!      This option is only available when compiling C++ code.  It turns on
!      (or off, if using '-fvtable-verify=none') the security feature that
!      verifies at run time, for every virtual call, that the vtable
!      pointer through which the call is made is valid for the type of the
!      object, and has not been corrupted or overwritten.  If an invalid
!      vtable pointer is detected at run time, an error is reported and
!      execution of the program is immediately halted.
  
       This option causes run-time data structures to be built at program
       startup, which are used for verifying the vtable pointers.  The
!      options 'std' and 'preinit' control the timing of when these data
       structures are built.  In both cases the data structures are built
!      before execution reaches 'main'.  Using '-fvtable-verify=std'
       causes the data structures to be built after shared libraries have
!      been loaded and initialized.  '-fvtable-verify=preinit' causes them
!      to be built before shared libraries have been loaded and
       initialized.
  
       If this option appears multiple times in the command line with
!      different values specified, 'none' takes highest priority over both
!      'std' and 'preinit'; 'preinit' takes priority over 'std'.
  
! '-fvtv-debug'
!      When used in conjunction with '-fvtable-verify=std' or
!      '-fvtable-verify=preinit', causes debug versions of the runtime
       functions for the vtable verification feature to be called.  This
!      flag also causes the compiler to log information about which vtable
!      pointers it finds for each class.  This information is written to a
!      file named 'vtv_set_ptr_data.log' in the directory named by the
!      environment variable 'VTV_LOGS_DIR' if that is defined or the
!      current working directory otherwise.
  
!      Note: This feature _appends_ data to the log file.  If you want a
       fresh log file, be sure to delete any existing one.
  
! '-fvtv-counts'
       This is a debugging flag.  When used in conjunction with
!      '-fvtable-verify=std' or '-fvtable-verify=preinit', this causes the
!      compiler to keep track of the total number of virtual calls it
       encounters and the number of verifications it inserts.  It also
       counts the number of calls to certain run-time library functions
       that it inserts and logs this information for each compilation
       unit.  The compiler writes this information to a file named
!      'vtv_count_data.log' in the directory named by the environment
!      variable 'VTV_LOGS_DIR' if that is defined or the current working
!      directory otherwise.  It also counts the size of the vtable pointer
!      sets for each class, and writes this information to
!      'vtv_class_set_sizes.log' in the same directory.
  
!      Note: This feature _appends_ data to the log files.  To get fresh
       log files, be sure to delete any existing ones.
  
! '-finstrument-functions'
       Generate instrumentation calls for entry and exit to functions.
       Just after function entry and just before function exit, the
       following profiling functions are called with the address of the
       current function and its call site.  (On some platforms,
!      '__builtin_return_address' does not work beyond the current
       function, so the call site information may not be available to the
       profiling functions otherwise.)
  
*************** program analysis purposes.
*** 9588,9614 ****
       function, which may be looked up exactly in the symbol table.
  
       This instrumentation is also done for functions expanded inline in
!      other functions.  The profiling calls indicate where,
!      conceptually, the inline function is entered and exited.  This
!      means that addressable versions of such functions must be
!      available.  If all your uses of a function are expanded inline,
!      this may mean an additional expansion of code size.  If you use
!      `extern inline' in your C code, an addressable version of such
!      functions must be provided.  (This is normally the case anyway,
!      but if you get lucky and the optimizer always expands the
!      functions inline, you might have gotten away without providing
!      static copies.)
  
!      A function may be given the attribute `no_instrument_function', in
       which case this instrumentation is not done.  This can be used, for
       example, for the profiling functions listed above, high-priority
       interrupt routines, and any functions from which the profiling
       functions cannot safely be called (perhaps signal handlers, if the
       profiling routines generate output or allocate memory).
  
! `-finstrument-functions-exclude-file-list=FILE,FILE,...'
       Set the list of functions that are excluded from instrumentation
!      (see the description of `-finstrument-functions').  If the file
       that contains a function definition matches with one of FILE, then
       that function is not instrumented.  The match is done on
       substrings: if the FILE parameter is a substring of the file name,
--- 9556,9582 ----
       function, which may be looked up exactly in the symbol table.
  
       This instrumentation is also done for functions expanded inline in
!      other functions.  The profiling calls indicate where, conceptually,
!      the inline function is entered and exited.  This means that
!      addressable versions of such functions must be available.  If all
!      your uses of a function are expanded inline, this may mean an
!      additional expansion of code size.  If you use 'extern inline' in
!      your C code, an addressable version of such functions must be
!      provided.  (This is normally the case anyway, but if you get lucky
!      and the optimizer always expands the functions inline, you might
!      have gotten away without providing static copies.)
  
!      A function may be given the attribute 'no_instrument_function', in
       which case this instrumentation is not done.  This can be used, for
       example, for the profiling functions listed above, high-priority
       interrupt routines, and any functions from which the profiling
       functions cannot safely be called (perhaps signal handlers, if the
       profiling routines generate output or allocate memory).
  
! '-finstrument-functions-exclude-file-list=FILE,FILE,...'
! 
       Set the list of functions that are excluded from instrumentation
!      (see the description of '-finstrument-functions').  If the file
       that contains a function definition matches with one of FILE, then
       that function is not instrumented.  The match is done on
       substrings: if the FILE parameter is a substring of the file name,
*************** program analysis purposes.
*** 9619,9643 ****
            -finstrument-functions-exclude-file-list=/bits/stl,include/sys
  
       excludes any inline function defined in files whose pathnames
!      contain `/bits/stl' or `include/sys'.
  
!      If, for some reason, you want to include letter `,' in one of SYM,
!      write `\,'. For example,
!      `-finstrument-functions-exclude-file-list='\,\,tmp'' (note the
       single quote surrounding the option).
  
! `-finstrument-functions-exclude-function-list=SYM,SYM,...'
!      This is similar to `-finstrument-functions-exclude-file-list', but
       this option sets the list of function names to be excluded from
       instrumentation.  The function name to be matched is its
!      user-visible name, such as `vector<int> blah(const vector<int>
!      &)', not the internal mangled name (e.g.,
!      `_Z4blahRSt6vectorIiSaIiEE').  The match is done on substrings: if
!      the SYM parameter is a substring of the function name, it is
!      considered to be a match.  For C99 and C++ extended identifiers,
!      the function name must be given in UTF-8, not using universal
!      character names.
! 
  
  
  File: gcc.info,  Node: Preprocessor Options,  Next: Assembler Options,  Prev: Instrumentation Options,  Up: Invoking GCC
--- 9587,9610 ----
            -finstrument-functions-exclude-file-list=/bits/stl,include/sys
  
       excludes any inline function defined in files whose pathnames
!      contain '/bits/stl' or 'include/sys'.
  
!      If, for some reason, you want to include letter ',' in one of SYM,
!      write '\,'.  For example,
!      '-finstrument-functions-exclude-file-list='\,\,tmp'' (note the
       single quote surrounding the option).
  
! '-finstrument-functions-exclude-function-list=SYM,SYM,...'
! 
!      This is similar to '-finstrument-functions-exclude-file-list', but
       this option sets the list of function names to be excluded from
       instrumentation.  The function name to be matched is its
!      user-visible name, such as 'vector<int> blah(const vector<int> &)',
!      not the internal mangled name (e.g., '_Z4blahRSt6vectorIiSaIiEE').
!      The match is done on substrings: if the SYM parameter is a
!      substring of the function name, it is considered to be a match.
!      For C99 and C++ extended identifiers, the function name must be
!      given in UTF-8, not using universal character names.
  
  
  File: gcc.info,  Node: Preprocessor Options,  Next: Assembler Options,  Prev: Instrumentation Options,  Up: Invoking GCC
*************** File: gcc.info,  Node: Preprocessor Opti
*** 9648,9697 ****
  These options control the C preprocessor, which is run on each C source
  file before actual compilation.
  
!  If you use the `-E' option, nothing is done except preprocessing.
! Some of these options make sense only together with `-E' because they
! cause the preprocessor output to be unsuitable for actual compilation.
  
! `-Wp,OPTION'
!      You can use `-Wp,OPTION' to bypass the compiler driver and pass
       OPTION directly through to the preprocessor.  If OPTION contains
       commas, it is split into multiple options at the commas.  However,
       many options are modified, translated or interpreted by the
!      compiler driver before being passed to the preprocessor, and `-Wp'
       forcibly bypasses this phase.  The preprocessor's direct interface
       is undocumented and subject to change, so whenever possible you
!      should avoid using `-Wp' and let the driver handle the options
       instead.
  
! `-Xpreprocessor OPTION'
       Pass OPTION as an option to the preprocessor.  You can use this to
       supply system-specific preprocessor options that GCC does not
       recognize.
  
       If you want to pass an option that takes an argument, you must use
!      `-Xpreprocessor' twice, once for the option and once for the
       argument.
  
! `-no-integrated-cpp'
       Perform preprocessing as a separate pass before compilation.  By
       default, GCC performs preprocessing as an integrated part of input
       tokenization and parsing.  If this option is provided, the
!      appropriate language front end (`cc1', `cc1plus', or `cc1obj' for
       C, C++, and Objective-C, respectively) is instead invoked twice,
       once for preprocessing only and once for actual compilation of the
       preprocessed input.  This option may be useful in conjunction with
!      the `-B' or `-wrapper' options to specify an alternate
!      preprocessor or perform additional processing of the program
!      source between normal preprocessing and compilation.
  
! `-D NAME'
!      Predefine NAME as a macro, with definition `1'.
  
! `-D NAME=DEFINITION'
       The contents of DEFINITION are tokenized and processed as if they
!      appeared during translation phase three in a `#define' directive.
!      In particular, the definition will be truncated by embedded
!      newline characters.
  
       If you are invoking the preprocessor from a shell or shell-like
       program you may need to use the shell's quoting syntax to protect
--- 9615,9664 ----
  These options control the C preprocessor, which is run on each C source
  file before actual compilation.
  
!  If you use the '-E' option, nothing is done except preprocessing.  Some
! of these options make sense only together with '-E' because they cause
! the preprocessor output to be unsuitable for actual compilation.
  
! '-Wp,OPTION'
!      You can use '-Wp,OPTION' to bypass the compiler driver and pass
       OPTION directly through to the preprocessor.  If OPTION contains
       commas, it is split into multiple options at the commas.  However,
       many options are modified, translated or interpreted by the
!      compiler driver before being passed to the preprocessor, and '-Wp'
       forcibly bypasses this phase.  The preprocessor's direct interface
       is undocumented and subject to change, so whenever possible you
!      should avoid using '-Wp' and let the driver handle the options
       instead.
  
! '-Xpreprocessor OPTION'
       Pass OPTION as an option to the preprocessor.  You can use this to
       supply system-specific preprocessor options that GCC does not
       recognize.
  
       If you want to pass an option that takes an argument, you must use
!      '-Xpreprocessor' twice, once for the option and once for the
       argument.
  
! '-no-integrated-cpp'
       Perform preprocessing as a separate pass before compilation.  By
       default, GCC performs preprocessing as an integrated part of input
       tokenization and parsing.  If this option is provided, the
!      appropriate language front end ('cc1', 'cc1plus', or 'cc1obj' for
       C, C++, and Objective-C, respectively) is instead invoked twice,
       once for preprocessing only and once for actual compilation of the
       preprocessed input.  This option may be useful in conjunction with
!      the '-B' or '-wrapper' options to specify an alternate preprocessor
!      or perform additional processing of the program source between
!      normal preprocessing and compilation.
  
! '-D NAME'
!      Predefine NAME as a macro, with definition '1'.
  
! '-D NAME=DEFINITION'
       The contents of DEFINITION are tokenized and processed as if they
!      appeared during translation phase three in a '#define' directive.
!      In particular, the definition will be truncated by embedded newline
!      characters.
  
       If you are invoking the preprocessor from a shell or shell-like
       program you may need to use the shell's quoting syntax to protect
*************** cause the preprocessor output to be unsu
*** 9700,9773 ****
       If you wish to define a function-like macro on the command line,
       write its argument list with surrounding parentheses before the
       equals sign (if any).  Parentheses are meaningful to most shells,
!      so you will need to quote the option.  With `sh' and `csh',
!      `-D'NAME(ARGS...)=DEFINITION'' works.
  
!      `-D' and `-U' options are processed in the order they are given on
!      the command line.  All `-imacros FILE' and `-include FILE' options
!      are processed after all `-D' and `-U' options.
  
! `-U NAME'
!      Cancel any previous definition of NAME, either built in or
!      provided with a `-D' option.
  
! `-undef'
       Do not predefine any system-specific or GCC-specific macros.  The
       standard predefined macros remain defined.
  
! `-I DIR'
!      Add the directory DIR to the list of directories to be searched
!      for header files.  Directories named by `-I' are searched before
!      the standard system include directories.  If the directory DIR is
!      a standard system include directory, the option is ignored to
!      ensure that the default search order for system directories and
!      the special treatment of system headers are not defeated .  If DIR
!      begins with `=', then the `=' will be replaced by the sysroot
!      prefix; see `--sysroot' and `-isysroot'.
  
! `-o FILE'
       Write output to FILE.  This is the same as specifying FILE as the
!      second non-option argument to `cpp'.  `gcc' has a different
       interpretation of a second non-option argument, so you must use
!      `-o' to specify the output file.
  
! `-Wall'
       Turns on all optional warnings which are desirable for normal code.
!      At present this is `-Wcomment', `-Wtrigraphs', `-Wmultichar' and a
!      warning about integer promotion causing a change of sign in `#if'
       expressions.  Note that many of the preprocessor's warnings are on
       by default and have no options to control them.
  
! `-Wcomment'
! `-Wcomments'
!      Warn whenever a comment-start sequence `/*' appears in a `/*'
!      comment, or whenever a backslash-newline appears in a `//' comment.
       (Both forms have the same effect.)
  
! `-Wtrigraphs'
       Most trigraphs in comments cannot affect the meaning of the
       program.  However, a trigraph that would form an escaped newline
!      (`??/' at the end of a line) can, by changing where the comment
       begins or ends.  Therefore, only trigraphs that would form escaped
       newlines produce warnings inside a comment.
  
!      This option is implied by `-Wall'.  If `-Wall' is not given, this
       option is still enabled unless trigraphs are enabled.  To get
!      trigraph conversion without warnings, but get the other `-Wall'
!      warnings, use `-trigraphs -Wall -Wno-trigraphs'.
  
! `-Wtraditional'
       Warn about certain constructs that behave differently in
       traditional and ISO C.  Also warn about ISO C constructs that have
       no traditional C equivalent, and problematic constructs which
       should be avoided.
  
! `-Wundef'
       Warn whenever an identifier which is not a macro is encountered in
!      an `#if' directive, outside of `defined'.  Such identifiers are
       replaced with zero.
  
! `-Wunused-macros'
       Warn about macros defined in the main file that are unused.  A
       macro is "used" if it is expanded or tested for existence at least
       once.  The preprocessor will also warn if the macro has not been
--- 9667,9740 ----
       If you wish to define a function-like macro on the command line,
       write its argument list with surrounding parentheses before the
       equals sign (if any).  Parentheses are meaningful to most shells,
!      so you will need to quote the option.  With 'sh' and 'csh',
!      '-D'NAME(ARGS...)=DEFINITION'' works.
  
!      '-D' and '-U' options are processed in the order they are given on
!      the command line.  All '-imacros FILE' and '-include FILE' options
!      are processed after all '-D' and '-U' options.
  
! '-U NAME'
!      Cancel any previous definition of NAME, either built in or provided
!      with a '-D' option.
  
! '-undef'
       Do not predefine any system-specific or GCC-specific macros.  The
       standard predefined macros remain defined.
  
! '-I DIR'
!      Add the directory DIR to the list of directories to be searched for
!      header files.  Directories named by '-I' are searched before the
!      standard system include directories.  If the directory DIR is a
!      standard system include directory, the option is ignored to ensure
!      that the default search order for system directories and the
!      special treatment of system headers are not defeated .  If DIR
!      begins with '=', then the '=' will be replaced by the sysroot
!      prefix; see '--sysroot' and '-isysroot'.
  
! '-o FILE'
       Write output to FILE.  This is the same as specifying FILE as the
!      second non-option argument to 'cpp'.  'gcc' has a different
       interpretation of a second non-option argument, so you must use
!      '-o' to specify the output file.
  
! '-Wall'
       Turns on all optional warnings which are desirable for normal code.
!      At present this is '-Wcomment', '-Wtrigraphs', '-Wmultichar' and a
!      warning about integer promotion causing a change of sign in '#if'
       expressions.  Note that many of the preprocessor's warnings are on
       by default and have no options to control them.
  
! '-Wcomment'
! '-Wcomments'
!      Warn whenever a comment-start sequence '/*' appears in a '/*'
!      comment, or whenever a backslash-newline appears in a '//' comment.
       (Both forms have the same effect.)
  
! '-Wtrigraphs'
       Most trigraphs in comments cannot affect the meaning of the
       program.  However, a trigraph that would form an escaped newline
!      ('??/' at the end of a line) can, by changing where the comment
       begins or ends.  Therefore, only trigraphs that would form escaped
       newlines produce warnings inside a comment.
  
!      This option is implied by '-Wall'.  If '-Wall' is not given, this
       option is still enabled unless trigraphs are enabled.  To get
!      trigraph conversion without warnings, but get the other '-Wall'
!      warnings, use '-trigraphs -Wall -Wno-trigraphs'.
  
! '-Wtraditional'
       Warn about certain constructs that behave differently in
       traditional and ISO C.  Also warn about ISO C constructs that have
       no traditional C equivalent, and problematic constructs which
       should be avoided.
  
! '-Wundef'
       Warn whenever an identifier which is not a macro is encountered in
!      an '#if' directive, outside of 'defined'.  Such identifiers are
       replaced with zero.
  
! '-Wunused-macros'
       Warn about macros defined in the main file that are unused.  A
       macro is "used" if it is expanded or tested for existence at least
       once.  The preprocessor will also warn if the macro has not been
*************** cause the preprocessor output to be unsu
*** 9786,9794 ****
            #if defined the_macro_causing_the_warning
            #endif
  
! `-Wendif-labels'
!      Warn whenever an `#else' or an `#endif' are followed by text.
!      This usually happens in code of the form
  
            #if FOO
            ...
--- 9753,9761 ----
            #if defined the_macro_causing_the_warning
            #endif
  
! '-Wendif-labels'
!      Warn whenever an '#else' or an '#endif' are followed by text.  This
!      usually happens in code of the form
  
            #if FOO
            ...
*************** cause the preprocessor output to be unsu
*** 9796,9887 ****
            ...
            #endif FOO
  
!      The second and third `FOO' should be in comments, but often are not
       in older programs.  This warning is on by default.
  
! `-Werror'
       Make all warnings into hard errors.  Source code which triggers
       warnings will be rejected.
  
! `-Wsystem-headers'
       Issue warnings for code in system headers.  These are normally
       unhelpful in finding bugs in your own code, therefore suppressed.
       If you are responsible for the system library, you may want to see
       them.
  
! `-w'
       Suppress all warnings, including those which GNU CPP issues by
       default.
  
! `-pedantic'
!      Issue all the mandatory diagnostics listed in the C standard.
!      Some of them are left out by default, since they trigger
!      frequently on harmless code.
  
! `-pedantic-errors'
       Issue all the mandatory diagnostics, and make all mandatory
       diagnostics into errors.  This includes mandatory diagnostics that
!      GCC issues without `-pedantic' but treats as warnings.
  
! `-M'
       Instead of outputting the result of preprocessing, output a rule
!      suitable for `make' describing the dependencies of the main source
!      file.  The preprocessor outputs one `make' rule containing the
       object file name for that source file, a colon, and the names of
!      all the included files, including those coming from `-include' or
!      `-imacros' command-line options.
  
!      Unless specified explicitly (with `-MT' or `-MQ'), the object file
       name consists of the name of the source file with any suffix
       replaced with object file suffix and with any leading directory
       parts removed.  If there are many included files then the rule is
!      split into several lines using `\'-newline.  The rule has no
       commands.
  
!      This option does not suppress the preprocessor's debug output,
!      such as `-dM'.  To avoid mixing such debug output with the
!      dependency rules you should explicitly specify the dependency
!      output file with `-MF', or use an environment variable like
!      `DEPENDENCIES_OUTPUT' (*note Environment Variables::).  Debug
!      output will still be sent to the regular output stream as normal.
  
!      Passing `-M' to the driver implies `-E', and suppresses warnings
!      with an implicit `-w'.
  
! `-MM'
!      Like `-M' but do not mention header files that are found in system
!      header directories, nor header files that are included, directly
!      or indirectly, from such a header.
  
       This implies that the choice of angle brackets or double quotes in
!      an `#include' directive does not in itself determine whether that
!      header will appear in `-MM' dependency output.  This is a slight
       change in semantics from GCC versions 3.0 and earlier.
  
! `-MF FILE'
!      When used with `-M' or `-MM', specifies a file to write the
!      dependencies to.  If no `-MF' switch is given the preprocessor
       sends the rules to the same place it would have sent preprocessed
       output.
  
!      When used with the driver options `-MD' or `-MMD', `-MF' overrides
       the default dependency output file.
  
! `-MG'
!      In conjunction with an option such as `-M' requesting dependency
!      generation, `-MG' assumes missing header files are generated files
!      and adds them to the dependency list without raising an error.
!      The dependency filename is taken directly from the `#include'
!      directive without prepending any path.  `-MG' also suppresses
!      preprocessed output, as a missing header file renders this useless.
  
       This feature is used in automatic updating of makefiles.
  
! `-MP'
       This option instructs CPP to add a phony target for each dependency
       other than the main file, causing each to depend on nothing.  These
!      dummy rules work around errors `make' gives if you remove header
!      files without updating the `Makefile' to match.
  
       This is typical output:
  
--- 9763,9854 ----
            ...
            #endif FOO
  
!      The second and third 'FOO' should be in comments, but often are not
       in older programs.  This warning is on by default.
  
! '-Werror'
       Make all warnings into hard errors.  Source code which triggers
       warnings will be rejected.
  
! '-Wsystem-headers'
       Issue warnings for code in system headers.  These are normally
       unhelpful in finding bugs in your own code, therefore suppressed.
       If you are responsible for the system library, you may want to see
       them.
  
! '-w'
       Suppress all warnings, including those which GNU CPP issues by
       default.
  
! '-pedantic'
!      Issue all the mandatory diagnostics listed in the C standard.  Some
!      of them are left out by default, since they trigger frequently on
!      harmless code.
  
! '-pedantic-errors'
       Issue all the mandatory diagnostics, and make all mandatory
       diagnostics into errors.  This includes mandatory diagnostics that
!      GCC issues without '-pedantic' but treats as warnings.
  
! '-M'
       Instead of outputting the result of preprocessing, output a rule
!      suitable for 'make' describing the dependencies of the main source
!      file.  The preprocessor outputs one 'make' rule containing the
       object file name for that source file, a colon, and the names of
!      all the included files, including those coming from '-include' or
!      '-imacros' command-line options.
  
!      Unless specified explicitly (with '-MT' or '-MQ'), the object file
       name consists of the name of the source file with any suffix
       replaced with object file suffix and with any leading directory
       parts removed.  If there are many included files then the rule is
!      split into several lines using '\'-newline.  The rule has no
       commands.
  
!      This option does not suppress the preprocessor's debug output, such
!      as '-dM'.  To avoid mixing such debug output with the dependency
!      rules you should explicitly specify the dependency output file with
!      '-MF', or use an environment variable like 'DEPENDENCIES_OUTPUT'
!      (*note Environment Variables::).  Debug output will still be sent
!      to the regular output stream as normal.
  
!      Passing '-M' to the driver implies '-E', and suppresses warnings
!      with an implicit '-w'.
  
! '-MM'
!      Like '-M' but do not mention header files that are found in system
!      header directories, nor header files that are included, directly or
!      indirectly, from such a header.
  
       This implies that the choice of angle brackets or double quotes in
!      an '#include' directive does not in itself determine whether that
!      header will appear in '-MM' dependency output.  This is a slight
       change in semantics from GCC versions 3.0 and earlier.
  
! '-MF FILE'
!      When used with '-M' or '-MM', specifies a file to write the
!      dependencies to.  If no '-MF' switch is given the preprocessor
       sends the rules to the same place it would have sent preprocessed
       output.
  
!      When used with the driver options '-MD' or '-MMD', '-MF' overrides
       the default dependency output file.
  
! '-MG'
!      In conjunction with an option such as '-M' requesting dependency
!      generation, '-MG' assumes missing header files are generated files
!      and adds them to the dependency list without raising an error.  The
!      dependency filename is taken directly from the '#include' directive
!      without prepending any path.  '-MG' also suppresses preprocessed
!      output, as a missing header file renders this useless.
  
       This feature is used in automatic updating of makefiles.
  
! '-MP'
       This option instructs CPP to add a phony target for each dependency
       other than the main file, causing each to depend on nothing.  These
!      dummy rules work around errors 'make' gives if you remove header
!      files without updating the 'Makefile' to match.
  
       This is typical output:
  
*************** cause the preprocessor output to be unsu
*** 9889,9938 ****
  
            test.h:
  
! `-MT TARGET'
       Change the target of the rule emitted by dependency generation.  By
       default CPP takes the name of the main input file, deletes any
!      directory components and any file suffix such as `.c', and appends
       the platform's usual object suffix.  The result is the target.
  
!      An `-MT' option will set the target to be exactly the string you
       specify.  If you want multiple targets, you can specify them as a
!      single argument to `-MT', or use multiple `-MT' options.
  
!      For example, `-MT '$(objpfx)foo.o'' might give
  
            $(objpfx)foo.o: foo.c
  
! `-MQ TARGET'
!      Same as `-MT', but it quotes any characters which are special to
!      Make.  `-MQ '$(objpfx)foo.o'' gives
  
            $$(objpfx)foo.o: foo.c
  
       The default target is automatically quoted, as if it were given
!      with `-MQ'.
  
! `-MD'
!      `-MD' is equivalent to `-M -MF FILE', except that `-E' is not
!      implied.  The driver determines FILE based on whether an `-o'
!      option is given.  If it is, the driver uses its argument but with
!      a suffix of `.d', otherwise it takes the name of the input file,
!      removes any directory components and suffix, and applies a `.d'
       suffix.
  
!      If `-MD' is used in conjunction with `-E', any `-o' switch is
       understood to specify the dependency output file (*note -MF:
!      dashMF.), but if used without `-E', each `-o' is understood to
       specify a target object file.
  
!      Since `-E' is not implied, `-MD' can be used to generate a
       dependency output file as a side-effect of the compilation process.
  
! `-MMD'
!      Like `-MD' except mention only user header files, not system
!      header files.
  
! `-fpch-deps'
       When using precompiled headers (*note Precompiled Headers::), this
       flag will cause the dependency-output flags to also list the files
       from the precompiled header's dependencies.  If not specified only
--- 9856,9907 ----
  
            test.h:
  
! '-MT TARGET'
! 
       Change the target of the rule emitted by dependency generation.  By
       default CPP takes the name of the main input file, deletes any
!      directory components and any file suffix such as '.c', and appends
       the platform's usual object suffix.  The result is the target.
  
!      An '-MT' option will set the target to be exactly the string you
       specify.  If you want multiple targets, you can specify them as a
!      single argument to '-MT', or use multiple '-MT' options.
  
!      For example, '-MT '$(objpfx)foo.o'' might give
  
            $(objpfx)foo.o: foo.c
  
! '-MQ TARGET'
! 
!      Same as '-MT', but it quotes any characters which are special to
!      Make.  '-MQ '$(objpfx)foo.o'' gives
  
            $$(objpfx)foo.o: foo.c
  
       The default target is automatically quoted, as if it were given
!      with '-MQ'.
  
! '-MD'
!      '-MD' is equivalent to '-M -MF FILE', except that '-E' is not
!      implied.  The driver determines FILE based on whether an '-o'
!      option is given.  If it is, the driver uses its argument but with a
!      suffix of '.d', otherwise it takes the name of the input file,
!      removes any directory components and suffix, and applies a '.d'
       suffix.
  
!      If '-MD' is used in conjunction with '-E', any '-o' switch is
       understood to specify the dependency output file (*note -MF:
!      dashMF.), but if used without '-E', each '-o' is understood to
       specify a target object file.
  
!      Since '-E' is not implied, '-MD' can be used to generate a
       dependency output file as a side-effect of the compilation process.
  
! '-MMD'
!      Like '-MD' except mention only user header files, not system header
!      files.
  
! '-fpch-deps'
       When using precompiled headers (*note Precompiled Headers::), this
       flag will cause the dependency-output flags to also list the files
       from the precompiled header's dependencies.  If not specified only
*************** cause the preprocessor output to be unsu
*** 9940,10362 ****
       used to create it because those files are not consulted when a
       precompiled header is used.
  
! `-fpch-preprocess'
       This option allows use of a precompiled header (*note Precompiled
!      Headers::) together with `-E'.  It inserts a special `#pragma',
!      `#pragma GCC pch_preprocess "FILENAME"' in the output to mark the
       place where the precompiled header was found, and its FILENAME.
!      When `-fpreprocessed' is in use, GCC recognizes this `#pragma' and
       loads the PCH.
  
       This option is off by default, because the resulting preprocessed
       output is only really suitable as input to GCC.  It is switched on
!      by `-save-temps'.
  
!      You should not write this `#pragma' in your own code, but it is
       safe to edit the filename if the PCH file is available in a
       different location.  The filename may be absolute or it may be
       relative to GCC's current directory.
  
! `-x c'
! `-x c++'
! `-x objective-c'
! `-x assembler-with-cpp'
       Specify the source language: C, C++, Objective-C, or assembly.
!      This has nothing to do with standards conformance or extensions;
!      it merely selects which base syntax to expect.  If you give none
!      of these options, cpp will deduce the language from the extension
!      of the source file: `.c', `.cc', `.m', or `.S'.  Some other common
       extensions for C++ and assembly are also recognized.  If cpp does
       not recognize the extension, it will treat the file as C; this is
       the most generic mode.
  
!      _Note:_ Previous versions of cpp accepted a `-lang' option which
       selected both the language and the standards conformance level.
!      This option has been removed, because it conflicts with the `-l'
       option.
  
! `-std=STANDARD'
! `-ansi'
       Specify the standard to which the code should conform.  Currently
       CPP knows about C and C++ standards; others may be added in the
       future.
  
       STANDARD may be one of:
!     `c90'
!     `c89'
!     `iso9899:1990'
!           The ISO C standard from 1990.  `c90' is the customary
            shorthand for this version of the standard.
  
!           The `-ansi' option is equivalent to `-std=c90'.
  
!     `iso9899:199409'
            The 1990 C standard, as amended in 1994.
  
!     `iso9899:1999'
!     `c99'
!     `iso9899:199x'
!     `c9x'
            The revised ISO C standard, published in December 1999.
            Before publication, this was known as C9X.
  
!     `iso9899:2011'
!     `c11'
!     `c1x'
            The revised ISO C standard, published in December 2011.
            Before publication, this was known as C1X.
  
!     `gnu90'
!     `gnu89'
            The 1990 C standard plus GNU extensions.  This is the default.
  
!     `gnu99'
!     `gnu9x'
            The 1999 C standard plus GNU extensions.
  
!     `gnu11'
!     `gnu1x'
            The 2011 C standard plus GNU extensions.
  
!     `c++98'
            The 1998 ISO C++ standard plus amendments.
  
!     `gnu++98'
!           The same as `-std=c++98' plus GNU extensions.  This is the
            default for C++ code.
  
! `-I-'
!      Split the include path.  Any directories specified with `-I'
!      options before `-I-' are searched only for headers requested with
!      `#include "FILE"'; they are not searched for `#include <FILE>'.
!      If additional directories are specified with `-I' options after
!      the `-I-', those directories are searched for all `#include'
       directives.
  
!      In addition, `-I-' inhibits the use of the directory of the current
!      file directory as the first search directory for `#include "FILE"'.
       This option has been deprecated.
  
! `-nostdinc'
       Do not search the standard system directories for header files.
!      Only the directories you have specified with `-I' options (and the
       directory of the current file, if appropriate) are searched.
  
! `-nostdinc++'
       Do not search for header files in the C++-specific standard
       directories, but do still search the other standard directories.
       (This option is used when building the C++ library.)
  
! `-include FILE'
!      Process FILE as if `#include "file"' appeared as the first line of
!      the primary source file.  However, the first directory searched
!      for FILE is the preprocessor's working directory _instead of_ the
       directory containing the main source file.  If not found there, it
!      is searched for in the remainder of the `#include "..."' search
       chain as normal.
  
!      If multiple `-include' options are given, the files are included
!      in the order they appear on the command line.
  
! `-imacros FILE'
!      Exactly like `-include', except that any output produced by
       scanning FILE is thrown away.  Macros it defines remain defined.
       This allows you to acquire all the macros from a header without
       also processing its declarations.
  
!      All files specified by `-imacros' are processed before all files
!      specified by `-include'.
  
! `-idirafter DIR'
       Search DIR for header files, but do it _after_ all directories
!      specified with `-I' and the standard system directories have been
       exhausted.  DIR is treated as a system include directory.  If DIR
!      begins with `=', then the `=' will be replaced by the sysroot
!      prefix; see `--sysroot' and `-isysroot'.
  
! `-iprefix PREFIX'
!      Specify PREFIX as the prefix for subsequent `-iwithprefix'
!      options.  If the prefix represents a directory, you should include
!      the final `/'.
  
! `-iwithprefix DIR'
! `-iwithprefixbefore DIR'
!      Append DIR to the prefix specified previously with `-iprefix', and
       add the resulting directory to the include search path.
!      `-iwithprefixbefore' puts it in the same place `-I' would;
!      `-iwithprefix' puts it where `-idirafter' would.
  
! `-isysroot DIR'
!      This option is like the `--sysroot' option, but applies only to
       header files (except for Darwin targets, where it applies to both
!      header files and libraries).  See the `--sysroot' option for more
       information.
  
! `-imultilib DIR'
       Use DIR as a subdirectory of the directory containing
       target-specific C++ headers.
  
! `-isystem DIR'
       Search DIR for header files, after all directories specified by
!      `-I' but before the standard system directories.  Mark it as a
       system directory, so that it gets the same special treatment as is
       applied to the standard system directories.  If DIR begins with
!      `=', then the `=' will be replaced by the sysroot prefix; see
!      `--sysroot' and `-isysroot'.
  
! `-iquote DIR'
!      Search DIR only for header files requested with `#include "FILE"';
!      they are not searched for `#include <FILE>', before all
!      directories specified by `-I' and before the standard system
!      directories.  If DIR begins with `=', then the `=' will be replaced
!      by the sysroot prefix; see `--sysroot' and `-isysroot'.
  
! `-fdirectives-only'
       When preprocessing, handle directives, but do not expand macros.
  
!      The option's behavior depends on the `-E' and `-fpreprocessed'
       options.
  
!      With `-E', preprocessing is limited to the handling of directives
!      such as `#define', `#ifdef', and `#error'.  Other preprocessor
!      operations, such as macro expansion and trigraph conversion are
!      not performed.  In addition, the `-dD' option is implicitly
!      enabled.
  
!      With `-fpreprocessed', predefinition of command line and most
!      builtin macros is disabled.  Macros such as `__LINE__', which are
       contextually dependent, are handled normally.  This enables
!      compilation of files previously preprocessed with `-E
       -fdirectives-only'.
  
!      With both `-E' and `-fpreprocessed', the rules for
!      `-fpreprocessed' take precedence.  This enables full preprocessing
!      of files previously preprocessed with `-E -fdirectives-only'.
  
! `-fdollars-in-identifiers'
!      Accept `$' in identifiers.
  
! `-fextended-identifiers'
       Accept universal character names in identifiers.  This option is
       enabled by default for C99 (and later C standard versions) and C++.
  
! `-fno-canonical-system-headers'
       When preprocessing, do not shorten system header paths with
       canonicalization.
  
! `-fpreprocessed'
       Indicate to the preprocessor that the input file has already been
       preprocessed.  This suppresses things like macro expansion,
       trigraph conversion, escaped newline splicing, and processing of
       most directives.  The preprocessor still recognizes and removes
!      comments, so that you can pass a file preprocessed with `-C' to
!      the compiler without problems.  In this mode the integrated
       preprocessor is little more than a tokenizer for the front ends.
  
!      `-fpreprocessed' is implicit if the input file has one of the
!      extensions `.i', `.ii' or `.mi'.  These are the extensions that
!      GCC uses for preprocessed files created by `-save-temps'.
  
! `-ftabstop=WIDTH'
       Set the distance between tab stops.  This helps the preprocessor
       report correct column numbers in warnings or errors, even if tabs
       appear on the line.  If the value is less than 1 or greater than
       100, the option is ignored.  The default is 8.
  
! `-fdebug-cpp'
!      This option is only useful for debugging GCC.  When used with
!      `-E', dumps debugging information about location maps.  Every
!      token in the output is preceded by the dump of the map its location
!      belongs to.  The dump of the map holding the location of a token
!      would be:
!           {`P':`/file/path';`F':`/includer/path';`L':LINE_NUM;`C':COL_NUM;`S':SYSTEM_HEADER_P;`M':MAP_ADDRESS;`E':MACRO_EXPANSION_P,`loc':LOCATION}
  
!      When used without `-E', this option has no effect.
  
! `-ftrack-macro-expansion[=LEVEL]'
!      Track locations of tokens across macro expansions. This allows the
       compiler to emit diagnostic about the current macro expansion stack
!      when a compilation error occurs in a macro expansion. Using this
!      option makes the preprocessor and the compiler consume more
!      memory. The LEVEL parameter can be used to choose the level of
!      precision of token location tracking thus decreasing the memory
!      consumption if necessary. Value `0' of LEVEL de-activates this
!      option just as if no `-ftrack-macro-expansion' was present on the
!      command line. Value `1' tracks tokens locations in a degraded mode
!      for the sake of minimal memory overhead. In this mode all tokens
!      resulting from the expansion of an argument of a function-like
!      macro have the same location. Value `2' tracks tokens locations
!      completely. This value is the most memory hungry.  When this
!      option is given no argument, the default parameter value is `2'.
  
!      Note that `-ftrack-macro-expansion=2' is activated by default.
  
! `-fexec-charset=CHARSET'
       Set the execution character set, used for string and character
       constants.  The default is UTF-8.  CHARSET can be any encoding
!      supported by the system's `iconv' library routine.
  
! `-fwide-exec-charset=CHARSET'
       Set the wide execution character set, used for wide string and
       character constants.  The default is UTF-32 or UTF-16, whichever
!      corresponds to the width of `wchar_t'.  As with `-fexec-charset',
!      CHARSET can be any encoding supported by the system's `iconv'
       library routine; however, you will have problems with encodings
!      that do not fit exactly in `wchar_t'.
  
! `-finput-charset=CHARSET'
       Set the input character set, used for translation from the
!      character set of the input file to the source character set used
!      by GCC.  If the locale does not specify, or GCC cannot get this
       information from the locale, the default is UTF-8.  This can be
       overridden by either the locale or this command-line option.
       Currently the command-line option takes precedence if there's a
       conflict.  CHARSET can be any encoding supported by the system's
!      `iconv' library routine.
  
! `-fworking-directory'
       Enable generation of linemarkers in the preprocessor output that
       will let the compiler know the current working directory at the
       time of preprocessing.  When this option is enabled, the
       preprocessor will emit, after the initial linemarker, a second
       linemarker with the current working directory followed by two
       slashes.  GCC will use this directory, when it's present in the
!      preprocessed input, as the directory emitted as the current
!      working directory in some debugging information formats.  This
!      option is implicitly enabled if debugging information is enabled,
!      but this can be inhibited with the negated form
!      `-fno-working-directory'.  If the `-P' flag is present in the
!      command line, this option has no effect, since no `#line'
!      directives are emitted whatsoever.
  
! `-fno-show-column'
       Do not print column numbers in diagnostics.  This may be necessary
       if diagnostics are being scanned by a program that does not
!      understand the column numbers, such as `dejagnu'.
  
! `-A PREDICATE=ANSWER'
       Make an assertion with the predicate PREDICATE and answer ANSWER.
!      This form is preferred to the older form `-A PREDICATE(ANSWER)',
       which is still supported, because it does not use shell special
       characters.
  
! `-A -PREDICATE=ANSWER'
       Cancel an assertion with the predicate PREDICATE and answer ANSWER.
  
! `-dCHARS'
!      CHARS is a sequence of one or more of the following characters,
!      and must not be preceded by a space.  Other characters are
!      interpreted by the compiler proper, or reserved for future
!      versions of GCC, and so are silently ignored.  If you specify
!      characters whose behavior conflicts, the result is undefined.
  
!     `M'
!           Instead of the normal output, generate a list of `#define'
            directives for all the macros defined during the execution of
!           the preprocessor, including predefined macros.  This gives
!           you a way of finding out what is predefined in your version
!           of the preprocessor.  Assuming you have no file `foo.h', the
!           command
  
                 touch foo.h; cpp -dM foo.h
  
            will show all the predefined macros.
  
!           If you use `-dM' without the `-E' option, `-dM' is
!           interpreted as a synonym for `-fdump-rtl-mach'.  *Note
!           Developer Options: (gcc)Developer Options.
  
!     `D'
!           Like `M' except in two respects: it does _not_ include the
!           predefined macros, and it outputs _both_ the `#define'
            directives and the result of preprocessing.  Both kinds of
            output go to the standard output file.
  
!     `N'
!           Like `D', but emit only the macro names, not their expansions.
  
!     `I'
!           Output `#include' directives in addition to the result of
            preprocessing.
  
!     `U'
!           Like `D' except that only macros that are expanded, or whose
            definedness is tested in preprocessor directives, are output;
            the output is delayed until the use or test of the macro; and
!           `#undef' directives are also output for macros tested but
            undefined at the time.
  
! `-P'
       Inhibit generation of linemarkers in the output from the
       preprocessor.  This might be useful when running the preprocessor
       on something that is not C code, and will be sent to a program
       which might be confused by the linemarkers.
  
! `-C'
       Do not discard comments.  All comments are passed through to the
!      output file, except for comments in processed directives, which
!      are deleted along with the directive.
  
!      You should be prepared for side effects when using `-C'; it causes
       the preprocessor to treat comments as tokens in their own right.
       For example, comments appearing at the start of what would be a
       directive line have the effect of turning that line into an
       ordinary source line, since the first token on the line is no
!      longer a `#'.
  
! `-CC'
       Do not discard comments, including during macro expansion.  This is
!      like `-C', except that comments contained within macros are also
       passed through to the output file where the macro is expanded.
  
!      In addition to the side-effects of the `-C' option, the `-CC'
!      option causes all C++-style comments inside a macro to be
!      converted to C-style comments.  This is to prevent later use of
!      that macro from inadvertently commenting out the remainder of the
!      source line.
  
!      The `-CC' option is generally used to support lint comments.
  
! `-traditional-cpp'
       Try to imitate the behavior of old-fashioned C preprocessors, as
       opposed to ISO C preprocessors.
  
! `-trigraphs'
       Process trigraph sequences.  These are three-character sequences,
!      all starting with `??', that are defined by ISO C to stand for
!      single characters.  For example, `??/' stands for `\', so `'??/n''
       is a character constant for a newline.  By default, GCC ignores
       trigraphs, but in standard-conforming modes it converts them.  See
!      the `-std' and `-ansi' options.
  
       The nine trigraphs and their replacements are
  
            Trigraph:       ??(  ??)  ??<  ??>  ??=  ??/  ??'  ??!  ??-
            Replacement:      [    ]    {    }    #    \    ^    |    ~
  
! `-remap'
       Enable special code to work around file systems which only permit
       very short file names, such as MS-DOS.
  
! `--help'
! `--target-help'
       Print text describing all the command-line options instead of
       preprocessing anything.
  
! `-v'
       Verbose mode.  Print out GNU CPP's version number at the beginning
       of execution, and report the final form of the include path.
  
! `-H'
       Print the name of each header file used, in addition to other
       normal activities.  Each name is indented to show how deep in the
!      `#include' stack it is.  Precompiled header files are also
!      printed, even if they are found to be invalid; an invalid
!      precompiled header file is printed with `...x' and a valid one
!      with `...!' .
  
! `-version'
! `--version'
       Print out GNU CPP's version number.  With one dash, proceed to
       preprocess as normal.  With two dashes, exit immediately.
  
--- 9909,10325 ----
       used to create it because those files are not consulted when a
       precompiled header is used.
  
! '-fpch-preprocess'
       This option allows use of a precompiled header (*note Precompiled
!      Headers::) together with '-E'.  It inserts a special '#pragma',
!      '#pragma GCC pch_preprocess "FILENAME"' in the output to mark the
       place where the precompiled header was found, and its FILENAME.
!      When '-fpreprocessed' is in use, GCC recognizes this '#pragma' and
       loads the PCH.
  
       This option is off by default, because the resulting preprocessed
       output is only really suitable as input to GCC.  It is switched on
!      by '-save-temps'.
  
!      You should not write this '#pragma' in your own code, but it is
       safe to edit the filename if the PCH file is available in a
       different location.  The filename may be absolute or it may be
       relative to GCC's current directory.
  
! '-x c'
! '-x c++'
! '-x objective-c'
! '-x assembler-with-cpp'
       Specify the source language: C, C++, Objective-C, or assembly.
!      This has nothing to do with standards conformance or extensions; it
!      merely selects which base syntax to expect.  If you give none of
!      these options, cpp will deduce the language from the extension of
!      the source file: '.c', '.cc', '.m', or '.S'.  Some other common
       extensions for C++ and assembly are also recognized.  If cpp does
       not recognize the extension, it will treat the file as C; this is
       the most generic mode.
  
!      _Note:_ Previous versions of cpp accepted a '-lang' option which
       selected both the language and the standards conformance level.
!      This option has been removed, because it conflicts with the '-l'
       option.
  
! '-std=STANDARD'
! '-ansi'
       Specify the standard to which the code should conform.  Currently
       CPP knows about C and C++ standards; others may be added in the
       future.
  
       STANDARD may be one of:
!      'c90'
!      'c89'
!      'iso9899:1990'
!           The ISO C standard from 1990.  'c90' is the customary
            shorthand for this version of the standard.
  
!           The '-ansi' option is equivalent to '-std=c90'.
  
!      'iso9899:199409'
            The 1990 C standard, as amended in 1994.
  
!      'iso9899:1999'
!      'c99'
!      'iso9899:199x'
!      'c9x'
            The revised ISO C standard, published in December 1999.
            Before publication, this was known as C9X.
  
!      'iso9899:2011'
!      'c11'
!      'c1x'
            The revised ISO C standard, published in December 2011.
            Before publication, this was known as C1X.
  
!      'gnu90'
!      'gnu89'
            The 1990 C standard plus GNU extensions.  This is the default.
  
!      'gnu99'
!      'gnu9x'
            The 1999 C standard plus GNU extensions.
  
!      'gnu11'
!      'gnu1x'
            The 2011 C standard plus GNU extensions.
  
!      'c++98'
            The 1998 ISO C++ standard plus amendments.
  
!      'gnu++98'
!           The same as '-std=c++98' plus GNU extensions.  This is the
            default for C++ code.
  
! '-I-'
!      Split the include path.  Any directories specified with '-I'
!      options before '-I-' are searched only for headers requested with
!      '#include "FILE"'; they are not searched for '#include <FILE>'.  If
!      additional directories are specified with '-I' options after the
!      '-I-', those directories are searched for all '#include'
       directives.
  
!      In addition, '-I-' inhibits the use of the directory of the current
!      file directory as the first search directory for '#include "FILE"'.
       This option has been deprecated.
  
! '-nostdinc'
       Do not search the standard system directories for header files.
!      Only the directories you have specified with '-I' options (and the
       directory of the current file, if appropriate) are searched.
  
! '-nostdinc++'
       Do not search for header files in the C++-specific standard
       directories, but do still search the other standard directories.
       (This option is used when building the C++ library.)
  
! '-include FILE'
!      Process FILE as if '#include "file"' appeared as the first line of
!      the primary source file.  However, the first directory searched for
!      FILE is the preprocessor's working directory _instead of_ the
       directory containing the main source file.  If not found there, it
!      is searched for in the remainder of the '#include "..."' search
       chain as normal.
  
!      If multiple '-include' options are given, the files are included in
!      the order they appear on the command line.
  
! '-imacros FILE'
!      Exactly like '-include', except that any output produced by
       scanning FILE is thrown away.  Macros it defines remain defined.
       This allows you to acquire all the macros from a header without
       also processing its declarations.
  
!      All files specified by '-imacros' are processed before all files
!      specified by '-include'.
  
! '-idirafter DIR'
       Search DIR for header files, but do it _after_ all directories
!      specified with '-I' and the standard system directories have been
       exhausted.  DIR is treated as a system include directory.  If DIR
!      begins with '=', then the '=' will be replaced by the sysroot
!      prefix; see '--sysroot' and '-isysroot'.
  
! '-iprefix PREFIX'
!      Specify PREFIX as the prefix for subsequent '-iwithprefix' options.
!      If the prefix represents a directory, you should include the final
!      '/'.
  
! '-iwithprefix DIR'
! '-iwithprefixbefore DIR'
!      Append DIR to the prefix specified previously with '-iprefix', and
       add the resulting directory to the include search path.
!      '-iwithprefixbefore' puts it in the same place '-I' would;
!      '-iwithprefix' puts it where '-idirafter' would.
  
! '-isysroot DIR'
!      This option is like the '--sysroot' option, but applies only to
       header files (except for Darwin targets, where it applies to both
!      header files and libraries).  See the '--sysroot' option for more
       information.
  
! '-imultilib DIR'
       Use DIR as a subdirectory of the directory containing
       target-specific C++ headers.
  
! '-isystem DIR'
       Search DIR for header files, after all directories specified by
!      '-I' but before the standard system directories.  Mark it as a
       system directory, so that it gets the same special treatment as is
       applied to the standard system directories.  If DIR begins with
!      '=', then the '=' will be replaced by the sysroot prefix; see
!      '--sysroot' and '-isysroot'.
  
! '-iquote DIR'
!      Search DIR only for header files requested with '#include "FILE"';
!      they are not searched for '#include <FILE>', before all directories
!      specified by '-I' and before the standard system directories.  If
!      DIR begins with '=', then the '=' will be replaced by the sysroot
!      prefix; see '--sysroot' and '-isysroot'.
  
! '-fdirectives-only'
       When preprocessing, handle directives, but do not expand macros.
  
!      The option's behavior depends on the '-E' and '-fpreprocessed'
       options.
  
!      With '-E', preprocessing is limited to the handling of directives
!      such as '#define', '#ifdef', and '#error'.  Other preprocessor
!      operations, such as macro expansion and trigraph conversion are not
!      performed.  In addition, the '-dD' option is implicitly enabled.
  
!      With '-fpreprocessed', predefinition of command line and most
!      builtin macros is disabled.  Macros such as '__LINE__', which are
       contextually dependent, are handled normally.  This enables
!      compilation of files previously preprocessed with '-E
       -fdirectives-only'.
  
!      With both '-E' and '-fpreprocessed', the rules for '-fpreprocessed'
!      take precedence.  This enables full preprocessing of files
!      previously preprocessed with '-E -fdirectives-only'.
  
! '-fdollars-in-identifiers'
!      Accept '$' in identifiers.
  
! '-fextended-identifiers'
       Accept universal character names in identifiers.  This option is
       enabled by default for C99 (and later C standard versions) and C++.
  
! '-fno-canonical-system-headers'
       When preprocessing, do not shorten system header paths with
       canonicalization.
  
! '-fpreprocessed'
       Indicate to the preprocessor that the input file has already been
       preprocessed.  This suppresses things like macro expansion,
       trigraph conversion, escaped newline splicing, and processing of
       most directives.  The preprocessor still recognizes and removes
!      comments, so that you can pass a file preprocessed with '-C' to the
!      compiler without problems.  In this mode the integrated
       preprocessor is little more than a tokenizer for the front ends.
  
!      '-fpreprocessed' is implicit if the input file has one of the
!      extensions '.i', '.ii' or '.mi'.  These are the extensions that GCC
!      uses for preprocessed files created by '-save-temps'.
  
! '-ftabstop=WIDTH'
       Set the distance between tab stops.  This helps the preprocessor
       report correct column numbers in warnings or errors, even if tabs
       appear on the line.  If the value is less than 1 or greater than
       100, the option is ignored.  The default is 8.
  
! '-fdebug-cpp'
!      This option is only useful for debugging GCC. When used with '-E',
!      dumps debugging information about location maps.  Every token in
!      the output is preceded by the dump of the map its location belongs
!      to.  The dump of the map holding the location of a token would be:
!           {'P':/file/path;'F':/includer/path;'L':LINE_NUM;'C':COL_NUM;'S':SYSTEM_HEADER_P;'M':MAP_ADDRESS;'E':MACRO_EXPANSION_P,'loc':LOCATION}
  
!      When used without '-E', this option has no effect.
  
! '-ftrack-macro-expansion[=LEVEL]'
!      Track locations of tokens across macro expansions.  This allows the
       compiler to emit diagnostic about the current macro expansion stack
!      when a compilation error occurs in a macro expansion.  Using this
!      option makes the preprocessor and the compiler consume more memory.
!      The LEVEL parameter can be used to choose the level of precision of
!      token location tracking thus decreasing the memory consumption if
!      necessary.  Value '0' of LEVEL de-activates this option just as if
!      no '-ftrack-macro-expansion' was present on the command line.
!      Value '1' tracks tokens locations in a degraded mode for the sake
!      of minimal memory overhead.  In this mode all tokens resulting from
!      the expansion of an argument of a function-like macro have the same
!      location.  Value '2' tracks tokens locations completely.  This
!      value is the most memory hungry.  When this option is given no
!      argument, the default parameter value is '2'.
  
!      Note that '-ftrack-macro-expansion=2' is activated by default.
  
! '-fexec-charset=CHARSET'
       Set the execution character set, used for string and character
       constants.  The default is UTF-8.  CHARSET can be any encoding
!      supported by the system's 'iconv' library routine.
  
! '-fwide-exec-charset=CHARSET'
       Set the wide execution character set, used for wide string and
       character constants.  The default is UTF-32 or UTF-16, whichever
!      corresponds to the width of 'wchar_t'.  As with '-fexec-charset',
!      CHARSET can be any encoding supported by the system's 'iconv'
       library routine; however, you will have problems with encodings
!      that do not fit exactly in 'wchar_t'.
  
! '-finput-charset=CHARSET'
       Set the input character set, used for translation from the
!      character set of the input file to the source character set used by
!      GCC.  If the locale does not specify, or GCC cannot get this
       information from the locale, the default is UTF-8.  This can be
       overridden by either the locale or this command-line option.
       Currently the command-line option takes precedence if there's a
       conflict.  CHARSET can be any encoding supported by the system's
!      'iconv' library routine.
  
! '-fworking-directory'
       Enable generation of linemarkers in the preprocessor output that
       will let the compiler know the current working directory at the
       time of preprocessing.  When this option is enabled, the
       preprocessor will emit, after the initial linemarker, a second
       linemarker with the current working directory followed by two
       slashes.  GCC will use this directory, when it's present in the
!      preprocessed input, as the directory emitted as the current working
!      directory in some debugging information formats.  This option is
!      implicitly enabled if debugging information is enabled, but this
!      can be inhibited with the negated form '-fno-working-directory'.
!      If the '-P' flag is present in the command line, this option has no
!      effect, since no '#line' directives are emitted whatsoever.
  
! '-fno-show-column'
       Do not print column numbers in diagnostics.  This may be necessary
       if diagnostics are being scanned by a program that does not
!      understand the column numbers, such as 'dejagnu'.
  
! '-A PREDICATE=ANSWER'
       Make an assertion with the predicate PREDICATE and answer ANSWER.
!      This form is preferred to the older form '-A PREDICATE(ANSWER)',
       which is still supported, because it does not use shell special
       characters.
  
! '-A -PREDICATE=ANSWER'
       Cancel an assertion with the predicate PREDICATE and answer ANSWER.
  
! '-dCHARS'
!      CHARS is a sequence of one or more of the following characters, and
!      must not be preceded by a space.  Other characters are interpreted
!      by the compiler proper, or reserved for future versions of GCC, and
!      so are silently ignored.  If you specify characters whose behavior
!      conflicts, the result is undefined.
  
!      'M'
!           Instead of the normal output, generate a list of '#define'
            directives for all the macros defined during the execution of
!           the preprocessor, including predefined macros.  This gives you
!           a way of finding out what is predefined in your version of the
!           preprocessor.  Assuming you have no file 'foo.h', the command
  
                 touch foo.h; cpp -dM foo.h
  
            will show all the predefined macros.
  
!           If you use '-dM' without the '-E' option, '-dM' is interpreted
!           as a synonym for '-fdump-rtl-mach'.  *Note (gcc)Developer
!           Options::.
  
!      'D'
!           Like 'M' except in two respects: it does _not_ include the
!           predefined macros, and it outputs _both_ the '#define'
            directives and the result of preprocessing.  Both kinds of
            output go to the standard output file.
  
!      'N'
!           Like 'D', but emit only the macro names, not their expansions.
  
!      'I'
!           Output '#include' directives in addition to the result of
            preprocessing.
  
!      'U'
!           Like 'D' except that only macros that are expanded, or whose
            definedness is tested in preprocessor directives, are output;
            the output is delayed until the use or test of the macro; and
!           '#undef' directives are also output for macros tested but
            undefined at the time.
  
! '-P'
       Inhibit generation of linemarkers in the output from the
       preprocessor.  This might be useful when running the preprocessor
       on something that is not C code, and will be sent to a program
       which might be confused by the linemarkers.
  
! '-C'
       Do not discard comments.  All comments are passed through to the
!      output file, except for comments in processed directives, which are
!      deleted along with the directive.
  
!      You should be prepared for side effects when using '-C'; it causes
       the preprocessor to treat comments as tokens in their own right.
       For example, comments appearing at the start of what would be a
       directive line have the effect of turning that line into an
       ordinary source line, since the first token on the line is no
!      longer a '#'.
  
! '-CC'
       Do not discard comments, including during macro expansion.  This is
!      like '-C', except that comments contained within macros are also
       passed through to the output file where the macro is expanded.
  
!      In addition to the side-effects of the '-C' option, the '-CC'
!      option causes all C++-style comments inside a macro to be converted
!      to C-style comments.  This is to prevent later use of that macro
!      from inadvertently commenting out the remainder of the source line.
  
!      The '-CC' option is generally used to support lint comments.
  
! '-traditional-cpp'
       Try to imitate the behavior of old-fashioned C preprocessors, as
       opposed to ISO C preprocessors.
  
! '-trigraphs'
       Process trigraph sequences.  These are three-character sequences,
!      all starting with '??', that are defined by ISO C to stand for
!      single characters.  For example, '??/' stands for '\', so ''??/n''
       is a character constant for a newline.  By default, GCC ignores
       trigraphs, but in standard-conforming modes it converts them.  See
!      the '-std' and '-ansi' options.
  
       The nine trigraphs and their replacements are
  
            Trigraph:       ??(  ??)  ??<  ??>  ??=  ??/  ??'  ??!  ??-
            Replacement:      [    ]    {    }    #    \    ^    |    ~
  
! '-remap'
       Enable special code to work around file systems which only permit
       very short file names, such as MS-DOS.
  
! '--help'
! '--target-help'
       Print text describing all the command-line options instead of
       preprocessing anything.
  
! '-v'
       Verbose mode.  Print out GNU CPP's version number at the beginning
       of execution, and report the final form of the include path.
  
! '-H'
       Print the name of each header file used, in addition to other
       normal activities.  Each name is indented to show how deep in the
!      '#include' stack it is.  Precompiled header files are also printed,
!      even if they are found to be invalid; an invalid precompiled header
!      file is printed with '...x' and a valid one with '...!' .
  
! '-version'
! '--version'
       Print out GNU CPP's version number.  With one dash, proceed to
       preprocess as normal.  With two dashes, exit immediately.
  
*************** File: gcc.info,  Node: Assembler Options
*** 10368,10385 ****
  
  You can pass options to the assembler.
  
! `-Wa,OPTION'
       Pass OPTION as an option to the assembler.  If OPTION contains
       commas, it is split into multiple options at the commas.
  
! `-Xassembler OPTION'
       Pass OPTION as an option to the assembler.  You can use this to
       supply system-specific assembler options that GCC does not
       recognize.
  
       If you want to pass an option that takes an argument, you must use
!      `-Xassembler' twice, once for the option and once for the argument.
! 
  
  
  File: gcc.info,  Node: Link Options,  Next: Directory Options,  Prev: Assembler Options,  Up: Invoking GCC
--- 10331,10347 ----
  
  You can pass options to the assembler.
  
! '-Wa,OPTION'
       Pass OPTION as an option to the assembler.  If OPTION contains
       commas, it is split into multiple options at the commas.
  
! '-Xassembler OPTION'
       Pass OPTION as an option to the assembler.  You can use this to
       supply system-specific assembler options that GCC does not
       recognize.
  
       If you want to pass an option that takes an argument, you must use
!      '-Xassembler' twice, once for the option and once for the argument.
  
  
  File: gcc.info,  Node: Link Options,  Next: Directory Options,  Prev: Assembler Options,  Up: Invoking GCC
*************** These options come into play when the co
*** 10391,10676 ****
  an executable output file.  They are meaningless if the compiler is not
  doing a link step.
  
! `OBJECT-FILE-NAME'
       A file name that does not end in a special recognized suffix is
       considered to name an object file or library.  (Object files are
       distinguished from libraries by the linker according to the file
       contents.)  If linking is done, these object files are used as
       input to the linker.
  
! `-c'
! `-S'
! `-E'
       If any of these options is used, then the linker is not run, and
       object file names should not be used as arguments.  *Note Overall
       Options::.
  
! `-fuse-ld=bfd'
!      Use the `bfd' linker instead of the default linker.
  
! `-fuse-ld=gold'
!      Use the `gold' linker instead of the default linker.
  
! `-lLIBRARY'
! `-l LIBRARY'
       Search the library named LIBRARY when linking.  (The second
       alternative with the library as a separate argument is only for
       POSIX compliance and is not recommended.)
  
       It makes a difference where in the command you write this option;
!      the linker searches and processes libraries and object files in
!      the order they are specified.  Thus, `foo.o -lz bar.o' searches
!      library `z' after file `foo.o' but before `bar.o'.  If `bar.o'
!      refers to functions in `z', those functions may not be loaded.
  
       The linker searches a standard list of directories for the library,
!      which is actually a file named `libLIBRARY.a'.  The linker then
       uses this file as if it had been specified precisely by name.
  
       The directories searched include several standard system
!      directories plus any that you specify with `-L'.
  
       Normally the files found this way are library files--archive files
!      whose members are object files.  The linker handles an archive
!      file by scanning through it for members which define symbols that
!      have so far been referenced but not defined.  But if the file that
!      is found is an ordinary object file, it is linked in the usual
!      fashion.  The only difference between using an `-l' option and
!      specifying a file name is that `-l' surrounds LIBRARY with `lib'
!      and `.a' and searches several directories.
  
! `-lobjc'
!      You need this special case of the `-l' option in order to link an
       Objective-C or Objective-C++ program.
  
! `-nostartfiles'
       Do not use the standard system startup files when linking.  The
!      standard system libraries are used normally, unless `-nostdlib' or
!      `-nodefaultlibs' is used.
  
! `-nodefaultlibs'
       Do not use the standard system libraries when linking.  Only the
       libraries you specify are passed to the linker, and options
       specifying linkage of the system libraries, such as
!      `-static-libgcc' or `-shared-libgcc', are ignored.  The standard
!      startup files are used normally, unless `-nostartfiles' is used.
  
!      The compiler may generate calls to `memcmp', `memset', `memcpy'
!      and `memmove'.  These entries are usually resolved by entries in
!      libc.  These entry points should be supplied through some other
!      mechanism when this option is specified.
  
! `-nostdlib'
       Do not use the standard system startup files or libraries when
       linking.  No startup files and only the libraries you specify are
       passed to the linker, and options specifying linkage of the system
!      libraries, such as `-static-libgcc' or `-shared-libgcc', are
       ignored.
  
!      The compiler may generate calls to `memcmp', `memset', `memcpy'
!      and `memmove'.  These entries are usually resolved by entries in
!      libc.  These entry points should be supplied through some other
!      mechanism when this option is specified.
  
!      One of the standard libraries bypassed by `-nostdlib' and
!      `-nodefaultlibs' is `libgcc.a', a library of internal subroutines
       which GCC uses to overcome shortcomings of particular machines, or
       special needs for some languages.  (*Note Interfacing to GCC
!      Output: (gccint)Interface, for more discussion of `libgcc.a'.)  In
!      most cases, you need `libgcc.a' even when you want to avoid other
!      standard libraries.  In other words, when you specify `-nostdlib'
!      or `-nodefaultlibs' you should usually specify `-lgcc' as well.
       This ensures that you have no unresolved references to internal GCC
!      library subroutines.  (An example of such an internal subroutine
!      is `__main', used to ensure C++ constructors are called; *note
!      `collect2': (gccint)Collect2.)
  
! `-pie'
       Produce a position independent executable on targets that support
!      it.  For predictable results, you must also specify the same set
!      of options used for compilation (`-fpie', `-fPIE', or model
       suboptions) when you specify this linker option.
  
! `-no-pie'
       Don't produce a position independent executable.
  
! `-rdynamic'
!      Pass the flag `-export-dynamic' to the ELF linker, on targets that
!      support it. This instructs the linker to add all symbols, not only
!      used ones, to the dynamic symbol table. This option is needed for
!      some uses of `dlopen' or to allow obtaining backtraces from within
       a program.
  
! `-s'
       Remove all symbol table and relocation information from the
       executable.
  
! `-static'
!      On systems that support dynamic linking, this prevents linking
!      with the shared libraries.  On other systems, this option has no
!      effect.
  
! `-shared'
!      Produce a shared object which can then be linked with other
!      objects to form an executable.  Not all systems support this
!      option.  For predictable results, you must also specify the same
!      set of options used for compilation (`-fpic', `-fPIC', or model
!      suboptions) when you specify this linker option.(1)
  
! `-shared-libgcc'
! `-static-libgcc'
!      On systems that provide `libgcc' as a shared library, these options
       force the use of either the shared or static version, respectively.
!      If no shared version of `libgcc' was built when the compiler was
       configured, these options have no effect.
  
       There are several situations in which an application should use the
!      shared `libgcc' instead of the static version.  The most common of
       these is when the application wishes to throw and catch exceptions
       across different shared libraries.  In that case, each of the
       libraries as well as the application itself should use the shared
!      `libgcc'.
  
       Therefore, the G++ and GCJ drivers automatically add
!      `-shared-libgcc' whenever you build a shared library or a main
!      executable, because C++ and Java programs typically use
!      exceptions, so this is the right thing to do.
  
!      If, instead, you use the GCC driver to create shared libraries,
!      you may find that they are not always linked with the shared
!      `libgcc'.  If GCC finds, at its configuration time, that you have
!      a non-GNU linker or a GNU linker that does not support option
!      `--eh-frame-hdr', it links the shared version of `libgcc' into
       shared libraries by default.  Otherwise, it takes advantage of the
       linker and optimizes away the linking with the shared version of
!      `libgcc', linking with the static version of libgcc by default.
       This allows exceptions to propagate through such shared libraries,
       without incurring relocation costs at library load time.
  
       However, if a library or main executable is supposed to throw or
       catch exceptions, you must link it using the G++ or GCJ driver, as
       appropriate for the languages used in the program, or using the
!      option `-shared-libgcc', such that it is linked with the shared
!      `libgcc'.
  
! `-static-libasan'
!      When the `-fsanitize=address' option is used to link a program,
!      the GCC driver automatically links against `libasan'.  If
!      `libasan' is available as a shared library, and the `-static'
!      option is not used, then this links against the shared version of
!      `libasan'.  The `-static-libasan' option directs the GCC driver to
!      link `libasan' statically, without necessarily linking other
!      libraries statically.
  
! `-static-libtsan'
!      When the `-fsanitize=thread' option is used to link a program, the
!      GCC driver automatically links against `libtsan'.  If `libtsan' is
!      available as a shared library, and the `-static' option is not
!      used, then this links against the shared version of `libtsan'.
!      The `-static-libtsan' option directs the GCC driver to link
!      `libtsan' statically, without necessarily linking other libraries
!      statically.
  
! `-static-liblsan'
!      When the `-fsanitize=leak' option is used to link a program, the
!      GCC driver automatically links against `liblsan'.  If `liblsan' is
!      available as a shared library, and the `-static' option is not
!      used, then this links against the shared version of `liblsan'.
!      The `-static-liblsan' option directs the GCC driver to link
!      `liblsan' statically, without necessarily linking other libraries
!      statically.
  
! `-static-libubsan'
!      When the `-fsanitize=undefined' option is used to link a program,
!      the GCC driver automatically links against `libubsan'.  If
!      `libubsan' is available as a shared library, and the `-static'
       option is not used, then this links against the shared version of
!      `libubsan'.  The `-static-libubsan' option directs the GCC driver
!      to link `libubsan' statically, without necessarily linking other
       libraries statically.
  
! `-static-libmpx'
!      When the `-fcheck-pointer bounds' and `-mmpx' options are used to
       link a program, the GCC driver automatically links against
!      `libmpx'.  If `libmpx' is available as a shared library, and the
!      `-static' option is not used, then this links against the shared
!      version of `libmpx'.  The `-static-libmpx' option directs the GCC
!      driver to link `libmpx' statically, without necessarily linking
       other libraries statically.
  
! `-static-libmpxwrappers'
!      When the `-fcheck-pointer bounds' and `-mmpx' options are used to
!      link a program without also using `-fno-chkp-use-wrappers', the
!      GCC driver automatically links against `libmpxwrappers'.  If
!      `libmpxwrappers' is available as a shared library, and the
!      `-static' option is not used, then this links against the shared
!      version of `libmpxwrappers'.  The `-static-libmpxwrappers' option
!      directs the GCC driver to link `libmpxwrappers' statically,
!      without necessarily linking other libraries statically.
  
! `-static-libstdc++'
!      When the `g++' program is used to link a C++ program, it normally
!      automatically links against `libstdc++'.  If `libstdc++' is
!      available as a shared library, and the `-static' option is not
!      used, then this links against the shared version of `libstdc++'.
       That is normally fine.  However, it is sometimes useful to freeze
!      the version of `libstdc++' used by the program without going all
!      the way to a fully static link.  The `-static-libstdc++' option
!      directs the `g++' driver to link `libstdc++' statically, without
       necessarily linking other libraries statically.
  
! `-symbolic'
       Bind references to global symbols when building a shared object.
!      Warn about any unresolved references (unless overridden by the
!      link editor option `-Xlinker -z -Xlinker defs').  Only a few
!      systems support this option.
  
! `-T SCRIPT'
       Use SCRIPT as the linker script.  This option is supported by most
       systems using the GNU linker.  On some targets, such as bare-board
!      targets without an operating system, the `-T' option may be
       required when linking to avoid references to undefined symbols.
  
! `-Xlinker OPTION'
!      Pass OPTION as an option to the linker.  You can use this to
!      supply system-specific linker options that GCC does not recognize.
  
       If you want to pass an option that takes a separate argument, you
!      must use `-Xlinker' twice, once for the option and once for the
!      argument.  For example, to pass `-assert definitions', you must
!      write `-Xlinker -assert -Xlinker definitions'.  It does not work
!      to write `-Xlinker "-assert definitions"', because this passes the
       entire string as a single argument, which is not what the linker
       expects.
  
       When using the GNU linker, it is usually more convenient to pass
!      arguments to linker options using the `OPTION=VALUE' syntax than
!      as separate arguments.  For example, you can specify `-Xlinker
!      -Map=output.map' rather than `-Xlinker -Map -Xlinker output.map'.
       Other linkers may not support this syntax for command-line options.
  
! `-Wl,OPTION'
!      Pass OPTION as an option to the linker.  If OPTION contains
!      commas, it is split into multiple options at the commas.  You can
!      use this syntax to pass an argument to the option.  For example,
!      `-Wl,-Map,output.map' passes `-Map output.map' to the linker.
!      When using the GNU linker, you can also get the same effect with
!      `-Wl,-Map=output.map'.
  
! `-u SYMBOL'
!      Pretend the symbol SYMBOL is undefined, to force linking of
!      library modules to define it.  You can use `-u' multiple times with
       different symbols to force loading of additional library modules.
  
! `-z KEYWORD'
!      `-z' is passed directly on to the linker along with the keyword
!      KEYWORD. See the section in the documentation of your linker for
       permitted values and their meanings.
  
!  ---------- Footnotes ----------
  
!  (1) On some systems, `gcc -shared' needs to build supplementary stub
! code for constructors to work.  On multi-libbed systems, `gcc -shared'
  must select the correct support libraries to link against.  Failing to
  supply the correct flags may lead to subtle defects.  Supplying them in
  cases where they are not necessary is innocuous.
--- 10353,10634 ----
  an executable output file.  They are meaningless if the compiler is not
  doing a link step.
  
! 'OBJECT-FILE-NAME'
       A file name that does not end in a special recognized suffix is
       considered to name an object file or library.  (Object files are
       distinguished from libraries by the linker according to the file
       contents.)  If linking is done, these object files are used as
       input to the linker.
  
! '-c'
! '-S'
! '-E'
       If any of these options is used, then the linker is not run, and
       object file names should not be used as arguments.  *Note Overall
       Options::.
  
! '-fuse-ld=bfd'
!      Use the 'bfd' linker instead of the default linker.
  
! '-fuse-ld=gold'
!      Use the 'gold' linker instead of the default linker.
  
! '-lLIBRARY'
! '-l LIBRARY'
       Search the library named LIBRARY when linking.  (The second
       alternative with the library as a separate argument is only for
       POSIX compliance and is not recommended.)
  
       It makes a difference where in the command you write this option;
!      the linker searches and processes libraries and object files in the
!      order they are specified.  Thus, 'foo.o -lz bar.o' searches library
!      'z' after file 'foo.o' but before 'bar.o'.  If 'bar.o' refers to
!      functions in 'z', those functions may not be loaded.
  
       The linker searches a standard list of directories for the library,
!      which is actually a file named 'libLIBRARY.a'.  The linker then
       uses this file as if it had been specified precisely by name.
  
       The directories searched include several standard system
!      directories plus any that you specify with '-L'.
  
       Normally the files found this way are library files--archive files
!      whose members are object files.  The linker handles an archive file
!      by scanning through it for members which define symbols that have
!      so far been referenced but not defined.  But if the file that is
!      found is an ordinary object file, it is linked in the usual
!      fashion.  The only difference between using an '-l' option and
!      specifying a file name is that '-l' surrounds LIBRARY with 'lib'
!      and '.a' and searches several directories.
  
! '-lobjc'
!      You need this special case of the '-l' option in order to link an
       Objective-C or Objective-C++ program.
  
! '-nostartfiles'
       Do not use the standard system startup files when linking.  The
!      standard system libraries are used normally, unless '-nostdlib' or
!      '-nodefaultlibs' is used.
  
! '-nodefaultlibs'
       Do not use the standard system libraries when linking.  Only the
       libraries you specify are passed to the linker, and options
       specifying linkage of the system libraries, such as
!      '-static-libgcc' or '-shared-libgcc', are ignored.  The standard
!      startup files are used normally, unless '-nostartfiles' is used.
  
!      The compiler may generate calls to 'memcmp', 'memset', 'memcpy' and
!      'memmove'.  These entries are usually resolved by entries in libc.
!      These entry points should be supplied through some other mechanism
!      when this option is specified.
  
! '-nostdlib'
       Do not use the standard system startup files or libraries when
       linking.  No startup files and only the libraries you specify are
       passed to the linker, and options specifying linkage of the system
!      libraries, such as '-static-libgcc' or '-shared-libgcc', are
       ignored.
  
!      The compiler may generate calls to 'memcmp', 'memset', 'memcpy' and
!      'memmove'.  These entries are usually resolved by entries in libc.
!      These entry points should be supplied through some other mechanism
!      when this option is specified.
  
!      One of the standard libraries bypassed by '-nostdlib' and
!      '-nodefaultlibs' is 'libgcc.a', a library of internal subroutines
       which GCC uses to overcome shortcomings of particular machines, or
       special needs for some languages.  (*Note Interfacing to GCC
!      Output: (gccint)Interface, for more discussion of 'libgcc.a'.)  In
!      most cases, you need 'libgcc.a' even when you want to avoid other
!      standard libraries.  In other words, when you specify '-nostdlib'
!      or '-nodefaultlibs' you should usually specify '-lgcc' as well.
       This ensures that you have no unresolved references to internal GCC
!      library subroutines.  (An example of such an internal subroutine is
!      '__main', used to ensure C++ constructors are called; *note
!      'collect2': (gccint)Collect2.)
  
! '-pie'
       Produce a position independent executable on targets that support
!      it.  For predictable results, you must also specify the same set of
!      options used for compilation ('-fpie', '-fPIE', or model
       suboptions) when you specify this linker option.
  
! '-no-pie'
       Don't produce a position independent executable.
  
! '-rdynamic'
!      Pass the flag '-export-dynamic' to the ELF linker, on targets that
!      support it.  This instructs the linker to add all symbols, not only
!      used ones, to the dynamic symbol table.  This option is needed for
!      some uses of 'dlopen' or to allow obtaining backtraces from within
       a program.
  
! '-s'
       Remove all symbol table and relocation information from the
       executable.
  
! '-static'
!      On systems that support dynamic linking, this prevents linking with
!      the shared libraries.  On other systems, this option has no effect.
  
! '-shared'
!      Produce a shared object which can then be linked with other objects
!      to form an executable.  Not all systems support this option.  For
!      predictable results, you must also specify the same set of options
!      used for compilation ('-fpic', '-fPIC', or model suboptions) when
!      you specify this linker option.(1)
  
! '-shared-libgcc'
! '-static-libgcc'
!      On systems that provide 'libgcc' as a shared library, these options
       force the use of either the shared or static version, respectively.
!      If no shared version of 'libgcc' was built when the compiler was
       configured, these options have no effect.
  
       There are several situations in which an application should use the
!      shared 'libgcc' instead of the static version.  The most common of
       these is when the application wishes to throw and catch exceptions
       across different shared libraries.  In that case, each of the
       libraries as well as the application itself should use the shared
!      'libgcc'.
  
       Therefore, the G++ and GCJ drivers automatically add
!      '-shared-libgcc' whenever you build a shared library or a main
!      executable, because C++ and Java programs typically use exceptions,
!      so this is the right thing to do.
  
!      If, instead, you use the GCC driver to create shared libraries, you
!      may find that they are not always linked with the shared 'libgcc'.
!      If GCC finds, at its configuration time, that you have a non-GNU
!      linker or a GNU linker that does not support option
!      '--eh-frame-hdr', it links the shared version of 'libgcc' into
       shared libraries by default.  Otherwise, it takes advantage of the
       linker and optimizes away the linking with the shared version of
!      'libgcc', linking with the static version of libgcc by default.
       This allows exceptions to propagate through such shared libraries,
       without incurring relocation costs at library load time.
  
       However, if a library or main executable is supposed to throw or
       catch exceptions, you must link it using the G++ or GCJ driver, as
       appropriate for the languages used in the program, or using the
!      option '-shared-libgcc', such that it is linked with the shared
!      'libgcc'.
  
! '-static-libasan'
!      When the '-fsanitize=address' option is used to link a program, the
!      GCC driver automatically links against 'libasan'.  If 'libasan' is
!      available as a shared library, and the '-static' option is not
!      used, then this links against the shared version of 'libasan'.  The
!      '-static-libasan' option directs the GCC driver to link 'libasan'
!      statically, without necessarily linking other libraries statically.
  
! '-static-libtsan'
!      When the '-fsanitize=thread' option is used to link a program, the
!      GCC driver automatically links against 'libtsan'.  If 'libtsan' is
!      available as a shared library, and the '-static' option is not
!      used, then this links against the shared version of 'libtsan'.  The
!      '-static-libtsan' option directs the GCC driver to link 'libtsan'
!      statically, without necessarily linking other libraries statically.
  
! '-static-liblsan'
!      When the '-fsanitize=leak' option is used to link a program, the
!      GCC driver automatically links against 'liblsan'.  If 'liblsan' is
!      available as a shared library, and the '-static' option is not
!      used, then this links against the shared version of 'liblsan'.  The
!      '-static-liblsan' option directs the GCC driver to link 'liblsan'
!      statically, without necessarily linking other libraries statically.
  
! '-static-libubsan'
!      When the '-fsanitize=undefined' option is used to link a program,
!      the GCC driver automatically links against 'libubsan'.  If
!      'libubsan' is available as a shared library, and the '-static'
       option is not used, then this links against the shared version of
!      'libubsan'.  The '-static-libubsan' option directs the GCC driver
!      to link 'libubsan' statically, without necessarily linking other
       libraries statically.
  
! '-static-libmpx'
!      When the '-fcheck-pointer bounds' and '-mmpx' options are used to
       link a program, the GCC driver automatically links against
!      'libmpx'.  If 'libmpx' is available as a shared library, and the
!      '-static' option is not used, then this links against the shared
!      version of 'libmpx'.  The '-static-libmpx' option directs the GCC
!      driver to link 'libmpx' statically, without necessarily linking
       other libraries statically.
  
! '-static-libmpxwrappers'
!      When the '-fcheck-pointer bounds' and '-mmpx' options are used to
!      link a program without also using '-fno-chkp-use-wrappers', the GCC
!      driver automatically links against 'libmpxwrappers'.  If
!      'libmpxwrappers' is available as a shared library, and the
!      '-static' option is not used, then this links against the shared
!      version of 'libmpxwrappers'.  The '-static-libmpxwrappers' option
!      directs the GCC driver to link 'libmpxwrappers' statically, without
!      necessarily linking other libraries statically.
  
! '-static-libstdc++'
!      When the 'g++' program is used to link a C++ program, it normally
!      automatically links against 'libstdc++'.  If 'libstdc++' is
!      available as a shared library, and the '-static' option is not
!      used, then this links against the shared version of 'libstdc++'.
       That is normally fine.  However, it is sometimes useful to freeze
!      the version of 'libstdc++' used by the program without going all
!      the way to a fully static link.  The '-static-libstdc++' option
!      directs the 'g++' driver to link 'libstdc++' statically, without
       necessarily linking other libraries statically.
  
! '-symbolic'
       Bind references to global symbols when building a shared object.
!      Warn about any unresolved references (unless overridden by the link
!      editor option '-Xlinker -z -Xlinker defs').  Only a few systems
!      support this option.
  
! '-T SCRIPT'
       Use SCRIPT as the linker script.  This option is supported by most
       systems using the GNU linker.  On some targets, such as bare-board
!      targets without an operating system, the '-T' option may be
       required when linking to avoid references to undefined symbols.
  
! '-Xlinker OPTION'
!      Pass OPTION as an option to the linker.  You can use this to supply
!      system-specific linker options that GCC does not recognize.
  
       If you want to pass an option that takes a separate argument, you
!      must use '-Xlinker' twice, once for the option and once for the
!      argument.  For example, to pass '-assert definitions', you must
!      write '-Xlinker -assert -Xlinker definitions'.  It does not work to
!      write '-Xlinker "-assert definitions"', because this passes the
       entire string as a single argument, which is not what the linker
       expects.
  
       When using the GNU linker, it is usually more convenient to pass
!      arguments to linker options using the 'OPTION=VALUE' syntax than as
!      separate arguments.  For example, you can specify '-Xlinker
!      -Map=output.map' rather than '-Xlinker -Map -Xlinker output.map'.
       Other linkers may not support this syntax for command-line options.
  
! '-Wl,OPTION'
!      Pass OPTION as an option to the linker.  If OPTION contains commas,
!      it is split into multiple options at the commas.  You can use this
!      syntax to pass an argument to the option.  For example,
!      '-Wl,-Map,output.map' passes '-Map output.map' to the linker.  When
!      using the GNU linker, you can also get the same effect with
!      '-Wl,-Map=output.map'.
  
! '-u SYMBOL'
!      Pretend the symbol SYMBOL is undefined, to force linking of library
!      modules to define it.  You can use '-u' multiple times with
       different symbols to force loading of additional library modules.
  
! '-z KEYWORD'
!      '-z' is passed directly on to the linker along with the keyword
!      KEYWORD.  See the section in the documentation of your linker for
       permitted values and their meanings.
  
!    ---------- Footnotes ----------
  
!    (1) On some systems, 'gcc -shared' needs to build supplementary stub
! code for constructors to work.  On multi-libbed systems, 'gcc -shared'
  must select the correct support libraries to link against.  Failing to
  supply the correct flags may lead to subtle defects.  Supplying them in
  cases where they are not necessary is innocuous.
*************** File: gcc.info,  Node: Directory Options
*** 10684,10814 ****
  These options specify directories to search for header files, for
  libraries and for parts of the compiler:
  
! `-IDIR'
       Add the directory DIR to the head of the list of directories to be
       searched for header files.  This can be used to override a system
!      header file, substituting your own version, since these
!      directories are searched before the system header file
!      directories.  However, you should not use this option to add
!      directories that contain vendor-supplied system header files (use
!      `-isystem' for that).  If you use more than one `-I' option, the
!      directories are scanned in left-to-right order; the standard
!      system directories come after.
  
       If a standard system include directory, or a directory specified
!      with `-isystem', is also specified with `-I', the `-I' option is
!      ignored.  The directory is still searched but as a system
!      directory at its normal position in the system include chain.
!      This is to ensure that GCC's procedure to fix buggy system headers
!      and the ordering for the `include_next' directive are not
!      inadvertently changed.  If you really need to change the search
!      order for system directories, use the `-nostdinc' and/or
!      `-isystem' options.
  
! `-iplugindir=DIR'
       Set the directory to search for plugins that are passed by
!      `-fplugin=NAME' instead of `-fplugin=PATH/NAME.so'.  This option
!      is not meant to be used by the user, but only passed by the driver.
  
! `-iquoteDIR'
       Add the directory DIR to the head of the list of directories to be
!      searched for header files only for the case of `#include "FILE"';
!      they are not searched for `#include <FILE>', otherwise just like
!      `-I'.
  
! `-LDIR'
       Add directory DIR to the list of directories to be searched for
!      `-l'.
  
! `-BPREFIX'
       This option specifies where to find the executables, libraries,
       include files, and data files of the compiler itself.
  
       The compiler driver program runs one or more of the subprograms
!      `cpp', `cc1', `as' and `ld'.  It tries PREFIX as a prefix for each
!      program it tries to run, both with and without `MACHINE/VERSION/'
       for the corresponding target machine and compiler version.
  
       For each subprogram to be run, the compiler driver first tries the
!      `-B' prefix, if any.  If that name is not found, or if `-B' is not
!      specified, the driver tries two standard prefixes, `/usr/lib/gcc/'
!      and `/usr/local/lib/gcc/'.  If neither of those results in a file
       name that is found, the unmodified program name is searched for
!      using the directories specified in your `PATH' environment
       variable.
  
!      The compiler checks to see if the path provided by `-B' refers to
!      a directory, and if necessary it adds a directory separator
!      character at the end of the path.
  
!      `-B' prefixes that effectively specify directory names also apply
       to libraries in the linker, because the compiler translates these
!      options into `-L' options for the linker.  They also apply to
       include files in the preprocessor, because the compiler translates
!      these options into `-isystem' options for the preprocessor.  In
!      this case, the compiler appends `include' to the prefix.
  
!      The runtime support file `libgcc.a' can also be searched for using
!      the `-B' prefix, if needed.  If it is not found there, the two
       standard prefixes above are tried, and that is all.  The file is
       left out of the link if it is not found by those means.
  
!      Another way to specify a prefix much like the `-B' prefix is to use
!      the environment variable `GCC_EXEC_PREFIX'.  *Note Environment
       Variables::.
  
!      As a special kludge, if the path provided by `-B' is
!      `[dir/]stageN/', where N is a number in the range 0 to 9, then it
!      is replaced by `[dir/]include'.  This is to help with
       boot-strapping the compiler.
  
! `-no-canonical-prefixes'
!      Do not expand any symbolic links, resolve references to `/../' or
!      `/./', or make the path absolute when generating a relative prefix.
  
! `--sysroot=DIR'
       Use DIR as the logical root directory for headers and libraries.
       For example, if the compiler normally searches for headers in
!      `/usr/include' and libraries in `/usr/lib', it instead searches
!      `DIR/usr/include' and `DIR/usr/lib'.
  
!      If you use both this option and the `-isysroot' option, then the
!      `--sysroot' option applies to libraries, but the `-isysroot'
!      option applies to header files.
  
       The GNU linker (beginning with version 2.16) has the necessary
       support for this option.  If your linker does not support this
!      option, the header file aspect of `--sysroot' still works, but the
       library aspect does not.
  
! `--no-sysroot-suffix'
       For some targets, a suffix is added to the root directory specified
!      with `--sysroot', depending on the other options used, so that
!      headers may for example be found in `DIR/SUFFIX/usr/include'
!      instead of `DIR/usr/include'.  This option disables the addition of
       such a suffix.
  
! `-I-'
!      This option has been deprecated.  Please use `-iquote' instead for
!      `-I' directories before the `-I-' and remove the `-I-' option.
!      Any directories you specify with `-I' options before the `-I-'
!      option are searched only for the case of `#include "FILE"'; they
!      are not searched for `#include <FILE>'.
  
!      If additional directories are specified with `-I' options after
!      the `-I-' option, these directories are searched for all `#include'
!      directives.  (Ordinarily _all_ `-I' directories are used this way.)
  
!      In addition, the `-I-' option inhibits the use of the current
       directory (where the current input file came from) as the first
!      search directory for `#include "FILE"'.  There is no way to
!      override this effect of `-I-'.  With `-I.' you can specify
       searching the directory that is current when the compiler is
       invoked.  That is not exactly the same as what the preprocessor
       does by default, but it is often satisfactory.
  
!      `-I-' does not inhibit the use of the standard system directories
!      for header files.  Thus, `-I-' and `-nostdinc' are independent.
  
  
  File: gcc.info,  Node: Code Gen Options,  Next: Developer Options,  Prev: Directory Options,  Up: Invoking GCC
--- 10642,10770 ----
  These options specify directories to search for header files, for
  libraries and for parts of the compiler:
  
! '-IDIR'
       Add the directory DIR to the head of the list of directories to be
       searched for header files.  This can be used to override a system
!      header file, substituting your own version, since these directories
!      are searched before the system header file directories.  However,
!      you should not use this option to add directories that contain
!      vendor-supplied system header files (use '-isystem' for that).  If
!      you use more than one '-I' option, the directories are scanned in
!      left-to-right order; the standard system directories come after.
  
       If a standard system include directory, or a directory specified
!      with '-isystem', is also specified with '-I', the '-I' option is
!      ignored.  The directory is still searched but as a system directory
!      at its normal position in the system include chain.  This is to
!      ensure that GCC's procedure to fix buggy system headers and the
!      ordering for the 'include_next' directive are not inadvertently
!      changed.  If you really need to change the search order for system
!      directories, use the '-nostdinc' and/or '-isystem' options.
  
! '-iplugindir=DIR'
       Set the directory to search for plugins that are passed by
!      '-fplugin=NAME' instead of '-fplugin=PATH/NAME.so'.  This option is
!      not meant to be used by the user, but only passed by the driver.
  
! '-iquoteDIR'
       Add the directory DIR to the head of the list of directories to be
!      searched for header files only for the case of '#include "FILE"';
!      they are not searched for '#include <FILE>', otherwise just like
!      '-I'.
  
! '-LDIR'
       Add directory DIR to the list of directories to be searched for
!      '-l'.
  
! '-BPREFIX'
       This option specifies where to find the executables, libraries,
       include files, and data files of the compiler itself.
  
       The compiler driver program runs one or more of the subprograms
!      'cpp', 'cc1', 'as' and 'ld'.  It tries PREFIX as a prefix for each
!      program it tries to run, both with and without 'MACHINE/VERSION/'
       for the corresponding target machine and compiler version.
  
       For each subprogram to be run, the compiler driver first tries the
!      '-B' prefix, if any.  If that name is not found, or if '-B' is not
!      specified, the driver tries two standard prefixes, '/usr/lib/gcc/'
!      and '/usr/local/lib/gcc/'.  If neither of those results in a file
       name that is found, the unmodified program name is searched for
!      using the directories specified in your 'PATH' environment
       variable.
  
!      The compiler checks to see if the path provided by '-B' refers to a
!      directory, and if necessary it adds a directory separator character
!      at the end of the path.
  
!      '-B' prefixes that effectively specify directory names also apply
       to libraries in the linker, because the compiler translates these
!      options into '-L' options for the linker.  They also apply to
       include files in the preprocessor, because the compiler translates
!      these options into '-isystem' options for the preprocessor.  In
!      this case, the compiler appends 'include' to the prefix.
  
!      The runtime support file 'libgcc.a' can also be searched for using
!      the '-B' prefix, if needed.  If it is not found there, the two
       standard prefixes above are tried, and that is all.  The file is
       left out of the link if it is not found by those means.
  
!      Another way to specify a prefix much like the '-B' prefix is to use
!      the environment variable 'GCC_EXEC_PREFIX'.  *Note Environment
       Variables::.
  
!      As a special kludge, if the path provided by '-B' is
!      '[dir/]stageN/', where N is a number in the range 0 to 9, then it
!      is replaced by '[dir/]include'.  This is to help with
       boot-strapping the compiler.
  
! '-no-canonical-prefixes'
!      Do not expand any symbolic links, resolve references to '/../' or
!      '/./', or make the path absolute when generating a relative prefix.
  
! '--sysroot=DIR'
       Use DIR as the logical root directory for headers and libraries.
       For example, if the compiler normally searches for headers in
!      '/usr/include' and libraries in '/usr/lib', it instead searches
!      'DIR/usr/include' and 'DIR/usr/lib'.
  
!      If you use both this option and the '-isysroot' option, then the
!      '--sysroot' option applies to libraries, but the '-isysroot' option
!      applies to header files.
  
       The GNU linker (beginning with version 2.16) has the necessary
       support for this option.  If your linker does not support this
!      option, the header file aspect of '--sysroot' still works, but the
       library aspect does not.
  
! '--no-sysroot-suffix'
       For some targets, a suffix is added to the root directory specified
!      with '--sysroot', depending on the other options used, so that
!      headers may for example be found in 'DIR/SUFFIX/usr/include'
!      instead of 'DIR/usr/include'.  This option disables the addition of
       such a suffix.
  
! '-I-'
!      This option has been deprecated.  Please use '-iquote' instead for
!      '-I' directories before the '-I-' and remove the '-I-' option.  Any
!      directories you specify with '-I' options before the '-I-' option
!      are searched only for the case of '#include "FILE"'; they are not
!      searched for '#include <FILE>'.
  
!      If additional directories are specified with '-I' options after the
!      '-I-' option, these directories are searched for all '#include'
!      directives.  (Ordinarily _all_ '-I' directories are used this way.)
  
!      In addition, the '-I-' option inhibits the use of the current
       directory (where the current input file came from) as the first
!      search directory for '#include "FILE"'.  There is no way to
!      override this effect of '-I-'.  With '-I.' you can specify
       searching the directory that is current when the compiler is
       invoked.  That is not exactly the same as what the preprocessor
       does by default, but it is often satisfactory.
  
!      '-I-' does not inhibit the use of the standard system directories
!      for header files.  Thus, '-I-' and '-nostdinc' are independent.
  
  
  File: gcc.info,  Node: Code Gen Options,  Next: Developer Options,  Prev: Directory Options,  Up: Invoking GCC
*************** File: gcc.info,  Node: Code Gen Options,
*** 10816,10844 ****
  3.16 Options for Code Generation Conventions
  ============================================
  
! These machine-independent options control the interface conventions
! used in code generation.
  
   Most of them have both positive and negative forms; the negative form
! of `-ffoo' is `-fno-foo'.  In the table below, only one of the forms is
  listed--the one that is not the default.  You can figure out the other
! form by either removing `no-' or adding it.
  
! `-fstack-reuse=REUSE-LEVEL'
!      This option controls stack space reuse for user declared
!      local/auto variables and compiler generated temporaries.
!      REUSE_LEVEL can be `all', `named_vars', or `none'. `all' enables
!      stack reuse for all local variables and temporaries, `named_vars'
!      enables the reuse only for user defined local variables with
!      names, and `none' disables stack reuse completely. The default
!      value is `all'. The option is needed when the program extends the
!      lifetime of a scoped local variable or a compiler generated
!      temporary beyond the end point defined by the language.  When a
!      lifetime of a variable ends, and if the variable lives in memory,
!      the optimizing compiler has the freedom to reuse its stack space
!      with other temporaries or scoped local variables whose live range
!      does not overlap with it. Legacy code extending local lifetime is
!      likely to break with the stack reuse optimization.
  
       For example,
  
--- 10772,10800 ----
  3.16 Options for Code Generation Conventions
  ============================================
  
! These machine-independent options control the interface conventions used
! in code generation.
  
   Most of them have both positive and negative forms; the negative form
! of '-ffoo' is '-fno-foo'.  In the table below, only one of the forms is
  listed--the one that is not the default.  You can figure out the other
! form by either removing 'no-' or adding it.
  
! '-fstack-reuse=REUSE-LEVEL'
!      This option controls stack space reuse for user declared local/auto
!      variables and compiler generated temporaries.  REUSE_LEVEL can be
!      'all', 'named_vars', or 'none'.  'all' enables stack reuse for all
!      local variables and temporaries, 'named_vars' enables the reuse
!      only for user defined local variables with names, and 'none'
!      disables stack reuse completely.  The default value is 'all'.  The
!      option is needed when the program extends the lifetime of a scoped
!      local variable or a compiler generated temporary beyond the end
!      point defined by the language.  When a lifetime of a variable ends,
!      and if the variable lives in memory, the optimizing compiler has
!      the freedom to reuse its stack space with other temporaries or
!      scoped local variables whose live range does not overlap with it.
!      Legacy code extending local lifetime is likely to break with the
!      stack reuse optimization.
  
       For example,
  
*************** form by either removing `no-' or adding
*** 10889,10948 ****
                               // is reused with a. What is the value of ap->i?
               }
  
       The lifetime of a compiler generated temporary is well defined by
!      the C++ standard. When a lifetime of a temporary ends, and if the
       temporary lives in memory, the optimizing compiler has the freedom
       to reuse its stack space with other temporaries or scoped local
!      variables whose live range does not overlap with it. However some
       of the legacy code relies on the behavior of older compilers in
       which temporaries' stack space is not reused, the aggressive stack
!      reuse can lead to runtime errors. This option is used to control
       the temporary stack reuse optimization.
  
! `-ftrapv'
       This option generates traps for signed overflow on addition,
!      subtraction, multiplication operations.  The options `-ftrapv' and
!      `-fwrapv' override each other, so using `-ftrapv' `-fwrapv' on the
!      command-line results in `-fwrapv' being effective.  Note that only
!      active options override, so using `-ftrapv' `-fwrapv' `-fno-wrapv'
!      on the command-line results in `-ftrapv' being effective.
  
! `-fwrapv'
       This option instructs the compiler to assume that signed arithmetic
       overflow of addition, subtraction and multiplication wraps around
       using twos-complement representation.  This flag enables some
       optimizations and disables others.  This option is enabled by
       default for the Java front end, as required by the Java language
!      specification.  The options `-ftrapv' and `-fwrapv' override each
!      other, so using `-ftrapv' `-fwrapv' on the command-line results in
!      `-fwrapv' being effective.  Note that only active options
!      override, so using `-ftrapv' `-fwrapv' `-fno-wrapv' on the
!      command-line results in `-ftrapv' being effective.
  
! `-fexceptions'
       Enable exception handling.  Generates extra code needed to
!      propagate exceptions.  For some targets, this implies GCC
!      generates frame unwind information for all functions, which can
!      produce significant data size overhead, although it does not
!      affect execution.  If you do not specify this option, GCC enables
!      it by default for languages like C++ that normally require
!      exception handling, and disables it for languages like C that do
!      not normally require it.  However, you may need to enable this
!      option when compiling C code that needs to interoperate properly
!      with exception handlers written in C++.  You may also wish to
!      disable this option if you are compiling older C++ programs that
!      don't use exception handling.
  
! `-fnon-call-exceptions'
       Generate code that allows trapping instructions to throw
       exceptions.  Note that this requires platform-specific runtime
       support that does not exist everywhere.  Moreover, it only allows
!      _trapping_ instructions to throw exceptions, i.e. memory
!      references or floating-point instructions.  It does not allow
!      exceptions to be thrown from arbitrary signal handlers such as
!      `SIGALRM'.
  
! `-fdelete-dead-exceptions'
       Consider that instructions that may throw exceptions but don't
       otherwise contribute to the execution of the program can be
       optimized away.  This option is enabled by default for the Ada
--- 10845,10904 ----
                               // is reused with a. What is the value of ap->i?
               }
  
+ 
       The lifetime of a compiler generated temporary is well defined by
!      the C++ standard.  When a lifetime of a temporary ends, and if the
       temporary lives in memory, the optimizing compiler has the freedom
       to reuse its stack space with other temporaries or scoped local
!      variables whose live range does not overlap with it.  However some
       of the legacy code relies on the behavior of older compilers in
       which temporaries' stack space is not reused, the aggressive stack
!      reuse can lead to runtime errors.  This option is used to control
       the temporary stack reuse optimization.
  
! '-ftrapv'
       This option generates traps for signed overflow on addition,
!      subtraction, multiplication operations.  The options '-ftrapv' and
!      '-fwrapv' override each other, so using '-ftrapv' '-fwrapv' on the
!      command-line results in '-fwrapv' being effective.  Note that only
!      active options override, so using '-ftrapv' '-fwrapv' '-fno-wrapv'
!      on the command-line results in '-ftrapv' being effective.
  
! '-fwrapv'
       This option instructs the compiler to assume that signed arithmetic
       overflow of addition, subtraction and multiplication wraps around
       using twos-complement representation.  This flag enables some
       optimizations and disables others.  This option is enabled by
       default for the Java front end, as required by the Java language
!      specification.  The options '-ftrapv' and '-fwrapv' override each
!      other, so using '-ftrapv' '-fwrapv' on the command-line results in
!      '-fwrapv' being effective.  Note that only active options override,
!      so using '-ftrapv' '-fwrapv' '-fno-wrapv' on the command-line
!      results in '-ftrapv' being effective.
  
! '-fexceptions'
       Enable exception handling.  Generates extra code needed to
!      propagate exceptions.  For some targets, this implies GCC generates
!      frame unwind information for all functions, which can produce
!      significant data size overhead, although it does not affect
!      execution.  If you do not specify this option, GCC enables it by
!      default for languages like C++ that normally require exception
!      handling, and disables it for languages like C that do not normally
!      require it.  However, you may need to enable this option when
!      compiling C code that needs to interoperate properly with exception
!      handlers written in C++.  You may also wish to disable this option
!      if you are compiling older C++ programs that don't use exception
!      handling.
  
! '-fnon-call-exceptions'
       Generate code that allows trapping instructions to throw
       exceptions.  Note that this requires platform-specific runtime
       support that does not exist everywhere.  Moreover, it only allows
!      _trapping_ instructions to throw exceptions, i.e. memory references
!      or floating-point instructions.  It does not allow exceptions to be
!      thrown from arbitrary signal handlers such as 'SIGALRM'.
  
! '-fdelete-dead-exceptions'
       Consider that instructions that may throw exceptions but don't
       otherwise contribute to the execution of the program can be
       optimized away.  This option is enabled by default for the Ada
*************** form by either removing `no-' or adding
*** 10950,10987 ****
       Optimization passes that cause dead exceptions to be removed are
       enabled independently at different optimization levels.
  
! `-funwind-tables'
!      Similar to `-fexceptions', except that it just generates any needed
       static data, but does not affect the generated code in any other
       way.  You normally do not need to enable this option; instead, a
       language processor that needs this handling enables it on your
       behalf.
  
! `-fasynchronous-unwind-tables'
       Generate unwind table in DWARF format, if supported by target
       machine.  The table is exact at each instruction boundary, so it
       can be used for stack unwinding from asynchronous events (such as
       debugger or garbage collector).
  
! `-fno-gnu-unique'
       On systems with recent GNU assembler and C library, the C++
!      compiler uses the `STB_GNU_UNIQUE' binding to make sure that
       definitions of template static data members and static local
       variables in inline functions are unique even in the presence of
!      `RTLD_LOCAL'; this is necessary to avoid problems with a library
!      used by two different `RTLD_LOCAL' plugins depending on a
       definition in one of them and therefore disagreeing with the other
!      one about the binding of the symbol.  But this causes `dlclose' to
       be ignored for affected DSOs; if your program relies on
!      reinitialization of a DSO via `dlclose' and `dlopen', you can use
!      `-fno-gnu-unique'.
  
! `-fpcc-struct-return'
!      Return "short" `struct' and `union' values in memory like longer
!      ones, rather than in registers.  This convention is less
!      efficient, but it has the advantage of allowing intercallability
!      between GCC-compiled files and files compiled with other
!      compilers, particularly the Portable C Compiler (pcc).
  
       The precise convention for returning structures in memory depends
       on the target configuration macros.
--- 10906,10943 ----
       Optimization passes that cause dead exceptions to be removed are
       enabled independently at different optimization levels.
  
! '-funwind-tables'
!      Similar to '-fexceptions', except that it just generates any needed
       static data, but does not affect the generated code in any other
       way.  You normally do not need to enable this option; instead, a
       language processor that needs this handling enables it on your
       behalf.
  
! '-fasynchronous-unwind-tables'
       Generate unwind table in DWARF format, if supported by target
       machine.  The table is exact at each instruction boundary, so it
       can be used for stack unwinding from asynchronous events (such as
       debugger or garbage collector).
  
! '-fno-gnu-unique'
       On systems with recent GNU assembler and C library, the C++
!      compiler uses the 'STB_GNU_UNIQUE' binding to make sure that
       definitions of template static data members and static local
       variables in inline functions are unique even in the presence of
!      'RTLD_LOCAL'; this is necessary to avoid problems with a library
!      used by two different 'RTLD_LOCAL' plugins depending on a
       definition in one of them and therefore disagreeing with the other
!      one about the binding of the symbol.  But this causes 'dlclose' to
       be ignored for affected DSOs; if your program relies on
!      reinitialization of a DSO via 'dlclose' and 'dlopen', you can use
!      '-fno-gnu-unique'.
  
! '-fpcc-struct-return'
!      Return "short" 'struct' and 'union' values in memory like longer
!      ones, rather than in registers.  This convention is less efficient,
!      but it has the advantage of allowing intercallability between
!      GCC-compiled files and files compiled with other compilers,
!      particularly the Portable C Compiler (pcc).
  
       The precise convention for returning structures in memory depends
       on the target configuration macros.
*************** form by either removing `no-' or adding
*** 10989,11089 ****
       Short structures and unions are those whose size and alignment
       match that of some integer type.
  
!      *Warning:* code compiled with the `-fpcc-struct-return' switch is
       not binary compatible with code compiled with the
!      `-freg-struct-return' switch.  Use it to conform to a non-default
       application binary interface.
  
! `-freg-struct-return'
!      Return `struct' and `union' values in registers when possible.
       This is more efficient for small structures than
!      `-fpcc-struct-return'.
  
!      If you specify neither `-fpcc-struct-return' nor
!      `-freg-struct-return', GCC defaults to whichever convention is
       standard for the target.  If there is no standard convention, GCC
!      defaults to `-fpcc-struct-return', except on targets where GCC is
       the principal compiler.  In those cases, we can choose the
       standard, and we chose the more efficient register return
       alternative.
  
!      *Warning:* code compiled with the `-freg-struct-return' switch is
       not binary compatible with code compiled with the
!      `-fpcc-struct-return' switch.  Use it to conform to a non-default
       application binary interface.
  
! `-fshort-enums'
!      Allocate to an `enum' type only as many bytes as it needs for the
!      declared range of possible values.  Specifically, the `enum' type
       is equivalent to the smallest integer type that has enough room.
  
!      *Warning:* the `-fshort-enums' switch causes GCC to generate code
       that is not binary compatible with code generated without that
       switch.  Use it to conform to a non-default application binary
       interface.
  
! `-fshort-wchar'
!      Override the underlying type for `wchar_t' to be `short unsigned
       int' instead of the default for the target.  This option is useful
       for building programs to run under WINE.
  
!      *Warning:* the `-fshort-wchar' switch causes GCC to generate code
       that is not binary compatible with code generated without that
       switch.  Use it to conform to a non-default application binary
       interface.
  
! `-fno-common'
       In C code, controls the placement of uninitialized global
       variables.  Unix C compilers have traditionally permitted multiple
       definitions of such variables in different compilation units by
       placing the variables in a common block.  This is the behavior
!      specified by `-fcommon', and is the default for GCC on most
       targets.  On the other hand, this behavior is not required by ISO
       C, and on some targets may carry a speed or code size penalty on
!      variable references.  The `-fno-common' option specifies that the
       compiler should place uninitialized global variables in the data
       section of the object file, rather than generating them as common
       blocks.  This has the effect that if the same variable is declared
!      (without `extern') in two different compilations, you get a
       multiple-definition error when you link them.  In this case, you
!      must compile with `-fcommon' instead.  Compiling with
!      `-fno-common' is useful on targets for which it provides better
!      performance, or if you wish to verify that the program will work
!      on other systems that always treat uninitialized variable
!      declarations this way.
  
! `-fno-ident'
!      Ignore the `#ident' directive.
  
! `-finhibit-size-directive'
!      Don't output a `.size' assembler directive, or anything else that
       would cause trouble if the function is split in the middle, and the
       two halves are placed at locations far apart in memory.  This
!      option is used when compiling `crtstuff.c'; you should not need to
       use it for anything else.
  
! `-fverbose-asm'
       Put extra commentary information in the generated assembly code to
       make it more readable.  This option is generally only of use to
       those who actually need to read the generated assembly code
       (perhaps while debugging the compiler itself).
  
!      `-fno-verbose-asm', the default, causes the extra information to
!      be omitted and is useful when comparing two assembler files.
  
! `-frecord-gcc-switches'
       This switch causes the command line used to invoke the compiler to
       be recorded into the object file that is being created.  This
       switch is only implemented on some targets and the exact format of
       the recording is target and binary file format dependent, but it
       usually takes the form of a section containing ASCII text.  This
!      switch is related to the `-fverbose-asm' switch, but that switch
       only records information in the assembler output file as comments,
       so it never reaches the object file.  See also
!      `-grecord-gcc-switches' for another way of storing compiler
!      options into the object file.
  
! `-fpic'
       Generate position-independent code (PIC) suitable for use in a
       shared library, if supported for the target machine.  Such code
       accesses all constant addresses through a global offset table
--- 10945,11044 ----
       Short structures and unions are those whose size and alignment
       match that of some integer type.
  
!      *Warning:* code compiled with the '-fpcc-struct-return' switch is
       not binary compatible with code compiled with the
!      '-freg-struct-return' switch.  Use it to conform to a non-default
       application binary interface.
  
! '-freg-struct-return'
!      Return 'struct' and 'union' values in registers when possible.
       This is more efficient for small structures than
!      '-fpcc-struct-return'.
  
!      If you specify neither '-fpcc-struct-return' nor
!      '-freg-struct-return', GCC defaults to whichever convention is
       standard for the target.  If there is no standard convention, GCC
!      defaults to '-fpcc-struct-return', except on targets where GCC is
       the principal compiler.  In those cases, we can choose the
       standard, and we chose the more efficient register return
       alternative.
  
!      *Warning:* code compiled with the '-freg-struct-return' switch is
       not binary compatible with code compiled with the
!      '-fpcc-struct-return' switch.  Use it to conform to a non-default
       application binary interface.
  
! '-fshort-enums'
!      Allocate to an 'enum' type only as many bytes as it needs for the
!      declared range of possible values.  Specifically, the 'enum' type
       is equivalent to the smallest integer type that has enough room.
  
!      *Warning:* the '-fshort-enums' switch causes GCC to generate code
       that is not binary compatible with code generated without that
       switch.  Use it to conform to a non-default application binary
       interface.
  
! '-fshort-wchar'
!      Override the underlying type for 'wchar_t' to be 'short unsigned
       int' instead of the default for the target.  This option is useful
       for building programs to run under WINE.
  
!      *Warning:* the '-fshort-wchar' switch causes GCC to generate code
       that is not binary compatible with code generated without that
       switch.  Use it to conform to a non-default application binary
       interface.
  
! '-fno-common'
       In C code, controls the placement of uninitialized global
       variables.  Unix C compilers have traditionally permitted multiple
       definitions of such variables in different compilation units by
       placing the variables in a common block.  This is the behavior
!      specified by '-fcommon', and is the default for GCC on most
       targets.  On the other hand, this behavior is not required by ISO
       C, and on some targets may carry a speed or code size penalty on
!      variable references.  The '-fno-common' option specifies that the
       compiler should place uninitialized global variables in the data
       section of the object file, rather than generating them as common
       blocks.  This has the effect that if the same variable is declared
!      (without 'extern') in two different compilations, you get a
       multiple-definition error when you link them.  In this case, you
!      must compile with '-fcommon' instead.  Compiling with '-fno-common'
!      is useful on targets for which it provides better performance, or
!      if you wish to verify that the program will work on other systems
!      that always treat uninitialized variable declarations this way.
  
! '-fno-ident'
!      Ignore the '#ident' directive.
  
! '-finhibit-size-directive'
!      Don't output a '.size' assembler directive, or anything else that
       would cause trouble if the function is split in the middle, and the
       two halves are placed at locations far apart in memory.  This
!      option is used when compiling 'crtstuff.c'; you should not need to
       use it for anything else.
  
! '-fverbose-asm'
       Put extra commentary information in the generated assembly code to
       make it more readable.  This option is generally only of use to
       those who actually need to read the generated assembly code
       (perhaps while debugging the compiler itself).
  
!      '-fno-verbose-asm', the default, causes the extra information to be
!      omitted and is useful when comparing two assembler files.
  
! '-frecord-gcc-switches'
       This switch causes the command line used to invoke the compiler to
       be recorded into the object file that is being created.  This
       switch is only implemented on some targets and the exact format of
       the recording is target and binary file format dependent, but it
       usually takes the form of a section containing ASCII text.  This
!      switch is related to the '-fverbose-asm' switch, but that switch
       only records information in the assembler output file as comments,
       so it never reaches the object file.  See also
!      '-grecord-gcc-switches' for another way of storing compiler options
!      into the object file.
  
! '-fpic'
       Generate position-independent code (PIC) suitable for use in a
       shared library, if supported for the target machine.  Such code
       accesses all constant addresses through a global offset table
*************** form by either removing `no-' or adding
*** 11091,11098 ****
       program starts (the dynamic loader is not part of GCC; it is part
       of the operating system).  If the GOT size for the linked
       executable exceeds a machine-specific maximum size, you get an
!      error message from the linker indicating that `-fpic' does not
!      work; in that case, recompile with `-fPIC' instead.  (These
       maximums are 8k on the SPARC, 28k on AArch64 and 32k on the m68k
       and RS/6000.  The x86 has no such limit.)
  
--- 11046,11053 ----
       program starts (the dynamic loader is not part of GCC; it is part
       of the operating system).  If the GOT size for the linked
       executable exceeds a machine-specific maximum size, you get an
!      error message from the linker indicating that '-fpic' does not
!      work; in that case, recompile with '-fPIC' instead.  (These
       maximums are 8k on the SPARC, 28k on AArch64 and 32k on the m68k
       and RS/6000.  The x86 has no such limit.)
  
*************** form by either removing `no-' or adding
*** 11101,11171 ****
       System V but not for the Sun 386i.  Code generated for the IBM
       RS/6000 is always position-independent.
  
!      When this flag is set, the macros `__pic__' and `__PIC__' are
       defined to 1.
  
! `-fPIC'
       If supported for the target machine, emit position-independent
       code, suitable for dynamic linking and avoiding any limit on the
!      size of the global offset table.  This option makes a difference
!      on AArch64, m68k, PowerPC and SPARC.
  
       Position-independent code requires special support, and therefore
       works only on certain machines.
  
!      When this flag is set, the macros `__pic__' and `__PIC__' are
       defined to 2.
  
! `-fpie'
! `-fPIE'
!      These options are similar to `-fpic' and `-fPIC', but generated
       position independent code can be only linked into executables.
!      Usually these options are used when `-pie' GCC option is used
       during linking.
  
!      `-fpie' and `-fPIE' both define the macros `__pie__' and
!      `__PIE__'.  The macros have the value 1 for `-fpie' and 2 for
!      `-fPIE'.
  
! `-fno-plt'
       Do not use the PLT for external function calls in
       position-independent code.  Instead, load the callee address at
       call sites from the GOT and branch to it.  This leads to more
       efficient code by eliminating PLT stubs and exposing GOT loads to
!      optimizations.  On architectures such as 32-bit x86 where PLT
!      stubs expect the GOT pointer in a specific register, this gives
!      more register allocation freedom to the compiler.  Lazy binding
!      requires use of the PLT; with `-fno-plt' all external symbols are
!      resolved at load time.
  
!      Alternatively, the function attribute `noplt' can be used to avoid
       calls through the PLT for specific external functions.
  
       In position-dependent code, a few targets also convert calls to
       functions that are marked to not use the PLT to use the GOT
       instead.
  
! `-fno-jump-tables'
       Do not use jump tables for switch statements even where it would be
       more efficient than other code generation strategies.  This option
!      is of use in conjunction with `-fpic' or `-fPIC' for building code
       that forms part of a dynamic linker and cannot reference the
       address of a jump table.  On some targets, jump tables do not
       require a GOT and this option is not needed.
  
! `-ffixed-REG'
       Treat the register named REG as a fixed register; generated code
       should never refer to it (except perhaps as a stack pointer, frame
       pointer or in some other fixed role).
  
       REG must be the name of a register.  The register names accepted
!      are machine-specific and are defined in the `REGISTER_NAMES' macro
       in the machine description macro file.
  
       This flag does not have a negative form, because it specifies a
       three-way choice.
  
! `-fcall-used-REG'
       Treat the register named REG as an allocable register that is
       clobbered by function calls.  It may be allocated for temporaries
       or variables that do not live across a call.  Functions compiled
--- 11056,11125 ----
       System V but not for the Sun 386i.  Code generated for the IBM
       RS/6000 is always position-independent.
  
!      When this flag is set, the macros '__pic__' and '__PIC__' are
       defined to 1.
  
! '-fPIC'
       If supported for the target machine, emit position-independent
       code, suitable for dynamic linking and avoiding any limit on the
!      size of the global offset table.  This option makes a difference on
!      AArch64, m68k, PowerPC and SPARC.
  
       Position-independent code requires special support, and therefore
       works only on certain machines.
  
!      When this flag is set, the macros '__pic__' and '__PIC__' are
       defined to 2.
  
! '-fpie'
! '-fPIE'
!      These options are similar to '-fpic' and '-fPIC', but generated
       position independent code can be only linked into executables.
!      Usually these options are used when '-pie' GCC option is used
       during linking.
  
!      '-fpie' and '-fPIE' both define the macros '__pie__' and '__PIE__'.
!      The macros have the value 1 for '-fpie' and 2 for '-fPIE'.
  
! '-fno-plt'
       Do not use the PLT for external function calls in
       position-independent code.  Instead, load the callee address at
       call sites from the GOT and branch to it.  This leads to more
       efficient code by eliminating PLT stubs and exposing GOT loads to
!      optimizations.  On architectures such as 32-bit x86 where PLT stubs
!      expect the GOT pointer in a specific register, this gives more
!      register allocation freedom to the compiler.  Lazy binding requires
!      use of the PLT; with '-fno-plt' all external symbols are resolved
!      at load time.
  
!      Alternatively, the function attribute 'noplt' can be used to avoid
       calls through the PLT for specific external functions.
  
       In position-dependent code, a few targets also convert calls to
       functions that are marked to not use the PLT to use the GOT
       instead.
  
! '-fno-jump-tables'
       Do not use jump tables for switch statements even where it would be
       more efficient than other code generation strategies.  This option
!      is of use in conjunction with '-fpic' or '-fPIC' for building code
       that forms part of a dynamic linker and cannot reference the
       address of a jump table.  On some targets, jump tables do not
       require a GOT and this option is not needed.
  
! '-ffixed-REG'
       Treat the register named REG as a fixed register; generated code
       should never refer to it (except perhaps as a stack pointer, frame
       pointer or in some other fixed role).
  
       REG must be the name of a register.  The register names accepted
!      are machine-specific and are defined in the 'REGISTER_NAMES' macro
       in the machine description macro file.
  
       This flag does not have a negative form, because it specifies a
       three-way choice.
  
! '-fcall-used-REG'
       Treat the register named REG as an allocable register that is
       clobbered by function calls.  It may be allocated for temporaries
       or variables that do not live across a call.  Functions compiled
*************** form by either removing `no-' or adding
*** 11179,11185 ****
       This flag does not have a negative form, because it specifies a
       three-way choice.
  
! `-fcall-saved-REG'
       Treat the register named REG as an allocable register saved by
       functions.  It may be allocated even for temporaries or variables
       that live across a call.  Functions compiled this way save and
--- 11133,11139 ----
       This flag does not have a negative form, because it specifies a
       three-way choice.
  
! '-fcall-saved-REG'
       Treat the register named REG as an allocable register saved by
       functions.  It may be allocated even for temporaries or variables
       that live across a call.  Functions compiled this way save and
*************** form by either removing `no-' or adding
*** 11196,11202 ****
       This flag does not have a negative form, because it specifies a
       three-way choice.
  
! `-fpack-struct[=N]'
       Without a value specified, pack all structure members together
       without holes.  When a value is specified (which must be a small
       power of two), pack structure members according to this value,
--- 11150,11156 ----
       This flag does not have a negative form, because it specifies a
       three-way choice.
  
! '-fpack-struct[=N]'
       Without a value specified, pack all structure members together
       without holes.  When a value is specified (which must be a small
       power of two), pack structure members according to this value,
*************** form by either removing `no-' or adding
*** 11204,11237 ****
       alignment requirements larger than this are output potentially
       unaligned at the next fitting location.
  
!      *Warning:* the `-fpack-struct' switch causes GCC to generate code
       that is not binary compatible with code generated without that
       switch.  Additionally, it makes the code suboptimal.  Use it to
       conform to a non-default application binary interface.
  
! `-fleading-underscore'
!      This option and its counterpart, `-fno-leading-underscore',
       forcibly change the way C symbols are represented in the object
       file.  One use is to help link with legacy assembly code.
  
!      *Warning:* the `-fleading-underscore' switch causes GCC to
!      generate code that is not binary compatible with code generated
!      without that switch.  Use it to conform to a non-default
!      application binary interface.  Not all targets provide complete
!      support for this switch.
  
! `-ftls-model=MODEL'
       Alter the thread-local storage model to be used (*note
       Thread-Local::).  The MODEL argument should be one of
!      `global-dynamic', `local-dynamic', `initial-exec' or `local-exec'.
       Note that the choice is subject to optimization: the compiler may
       use a more efficient model for symbols not visible outside of the
!      translation unit, or if `-fpic' is not given on the command line.
  
!      The default without `-fpic' is `initial-exec'; with `-fpic' the
!      default is `global-dynamic'.
  
! `-fvisibility=[default|internal|hidden|protected]'
       Set the default ELF image symbol visibility to the specified
       option--all symbols are marked with this unless overridden within
       the code.  Using this feature can very substantially improve
--- 11158,11191 ----
       alignment requirements larger than this are output potentially
       unaligned at the next fitting location.
  
!      *Warning:* the '-fpack-struct' switch causes GCC to generate code
       that is not binary compatible with code generated without that
       switch.  Additionally, it makes the code suboptimal.  Use it to
       conform to a non-default application binary interface.
  
! '-fleading-underscore'
!      This option and its counterpart, '-fno-leading-underscore',
       forcibly change the way C symbols are represented in the object
       file.  One use is to help link with legacy assembly code.
  
!      *Warning:* the '-fleading-underscore' switch causes GCC to generate
!      code that is not binary compatible with code generated without that
!      switch.  Use it to conform to a non-default application binary
!      interface.  Not all targets provide complete support for this
!      switch.
  
! '-ftls-model=MODEL'
       Alter the thread-local storage model to be used (*note
       Thread-Local::).  The MODEL argument should be one of
!      'global-dynamic', 'local-dynamic', 'initial-exec' or 'local-exec'.
       Note that the choice is subject to optimization: the compiler may
       use a more efficient model for symbols not visible outside of the
!      translation unit, or if '-fpic' is not given on the command line.
  
!      The default without '-fpic' is 'initial-exec'; with '-fpic' the
!      default is 'global-dynamic'.
  
! '-fvisibility=[default|internal|hidden|protected]'
       Set the default ELF image symbol visibility to the specified
       option--all symbols are marked with this unless overridden within
       the code.  Using this feature can very substantially improve
*************** form by either removing `no-' or adding
*** 11240,11268 ****
       clashes.  It is *strongly* recommended that you use this in any
       shared objects you distribute.
  
!      Despite the nomenclature, `default' always means public; i.e.,
       available to be linked against from outside the shared object.
!      `protected' and `internal' are pretty useless in real-world usage
!      so the only other commonly used option is `hidden'.  The default
!      if `-fvisibility' isn't specified is `default', i.e., make every
       symbol public.
  
       A good explanation of the benefits offered by ensuring ELF symbols
       have the correct visibility is given by "How To Write Shared
       Libraries" by Ulrich Drepper (which can be found at
!      `http://www.akkadia.org/drepper/')--however a superior solution
       made possible by this option to marking things hidden when the
       default is public is to make the default hidden and mark things
       public.  This is the norm with DLLs on Windows and with
!      `-fvisibility=hidden' and `__attribute__
!      ((visibility("default")))' instead of `__declspec(dllexport)' you
!      get almost identical semantics with identical syntax.  This is a
!      great boon to those working with cross-platform projects.
  
       For those adding visibility support to existing code, you may find
!      `#pragma GCC visibility' of use.  This works by you enclosing the
       declarations you wish to set visibility for with (for example)
!      `#pragma GCC visibility push(hidden)' and `#pragma GCC visibility
       pop'.  Bear in mind that symbol visibility should be viewed *as
       part of the API interface contract* and thus all new code should
       always specify visibility when it is not the default; i.e.,
--- 11194,11222 ----
       clashes.  It is *strongly* recommended that you use this in any
       shared objects you distribute.
  
!      Despite the nomenclature, 'default' always means public; i.e.,
       available to be linked against from outside the shared object.
!      'protected' and 'internal' are pretty useless in real-world usage
!      so the only other commonly used option is 'hidden'.  The default if
!      '-fvisibility' isn't specified is 'default', i.e., make every
       symbol public.
  
       A good explanation of the benefits offered by ensuring ELF symbols
       have the correct visibility is given by "How To Write Shared
       Libraries" by Ulrich Drepper (which can be found at
!      <http://www.akkadia.org/drepper/>)--however a superior solution
       made possible by this option to marking things hidden when the
       default is public is to make the default hidden and mark things
       public.  This is the norm with DLLs on Windows and with
!      '-fvisibility=hidden' and '__attribute__ ((visibility("default")))'
!      instead of '__declspec(dllexport)' you get almost identical
!      semantics with identical syntax.  This is a great boon to those
!      working with cross-platform projects.
  
       For those adding visibility support to existing code, you may find
!      '#pragma GCC visibility' of use.  This works by you enclosing the
       declarations you wish to set visibility for with (for example)
!      '#pragma GCC visibility push(hidden)' and '#pragma GCC visibility
       pop'.  Bear in mind that symbol visibility should be viewed *as
       part of the API interface contract* and thus all new code should
       always specify visibility when it is not the default; i.e.,
*************** form by either removing `no-' or adding
*** 11270,11312 ****
       marked explicitly as hidden as so to avoid PLT indirection
       overheads--making this abundantly clear also aids readability and
       self-documentation of the code.  Note that due to ISO C++
!      specification requirements, `operator new' and `operator delete'
       must always be of default visibility.
  
       Be aware that headers from outside your project, in particular
       system headers and headers from any other library you use, may not
!      be expecting to be compiled with visibility other than the
!      default.  You may need to explicitly say `#pragma GCC visibility
       push(default)' before including any such headers.
  
!      `extern' declarations are not affected by `-fvisibility', so a lot
!      of code can be recompiled with `-fvisibility=hidden' with no
!      modifications.  However, this means that calls to `extern'
       functions with no explicit visibility use the PLT, so it is more
!      effective to use `__attribute ((visibility))' and/or `#pragma GCC
!      visibility' to tell the compiler which `extern' declarations
!      should be treated as hidden.
  
!      Note that `-fvisibility' does affect C++ vague linkage entities.
!      This means that, for instance, an exception class that is be
!      thrown between DSOs must be explicitly marked with default
!      visibility so that the `type_info' nodes are unified between the
!      DSOs.
  
       An overview of these techniques, their benefits and how to use them
!      is at `http://gcc.gnu.org/wiki/Visibility'.
  
! `-fstrict-volatile-bitfields'
       This option should be used if accesses to volatile bit-fields (or
       other structure fields, although the compiler usually honors those
       types anyway) should use a single access of the width of the
       field's type, aligned to a natural alignment if possible.  For
       example, targets with memory-mapped peripheral registers might
       require all such accesses to be 16 bits wide; with this flag you
!      can declare all peripheral bit-fields as `unsigned short'
!      (assuming short is 16 bits on these targets) to force GCC to use
!      16-bit accesses instead of, perhaps, a more efficient 32-bit
!      access.
  
       If this option is disabled, the compiler uses the most efficient
       instruction.  In the previous example, that might be a 32-bit load
--- 11224,11264 ----
       marked explicitly as hidden as so to avoid PLT indirection
       overheads--making this abundantly clear also aids readability and
       self-documentation of the code.  Note that due to ISO C++
!      specification requirements, 'operator new' and 'operator delete'
       must always be of default visibility.
  
       Be aware that headers from outside your project, in particular
       system headers and headers from any other library you use, may not
!      be expecting to be compiled with visibility other than the default.
!      You may need to explicitly say '#pragma GCC visibility
       push(default)' before including any such headers.
  
!      'extern' declarations are not affected by '-fvisibility', so a lot
!      of code can be recompiled with '-fvisibility=hidden' with no
!      modifications.  However, this means that calls to 'extern'
       functions with no explicit visibility use the PLT, so it is more
!      effective to use '__attribute ((visibility))' and/or '#pragma GCC
!      visibility' to tell the compiler which 'extern' declarations should
!      be treated as hidden.
  
!      Note that '-fvisibility' does affect C++ vague linkage entities.
!      This means that, for instance, an exception class that is be thrown
!      between DSOs must be explicitly marked with default visibility so
!      that the 'type_info' nodes are unified between the DSOs.
  
       An overview of these techniques, their benefits and how to use them
!      is at <http://gcc.gnu.org/wiki/Visibility>.
  
! '-fstrict-volatile-bitfields'
       This option should be used if accesses to volatile bit-fields (or
       other structure fields, although the compiler usually honors those
       types anyway) should use a single access of the width of the
       field's type, aligned to a natural alignment if possible.  For
       example, targets with memory-mapped peripheral registers might
       require all such accesses to be 16 bits wide; with this flag you
!      can declare all peripheral bit-fields as 'unsigned short' (assuming
!      short is 16 bits on these targets) to force GCC to use 16-bit
!      accesses instead of, perhaps, a more efficient 32-bit access.
  
       If this option is disabled, the compiler uses the most efficient
       instruction.  In the previous example, that might be a 32-bit load
*************** form by either removing `no-' or adding
*** 11314,11327 ****
       any portion of the bit-field, or memory-mapped registers unrelated
       to the one being updated.
  
!      In some cases, such as when the `packed' attribute is applied to a
       structure field, it may not be possible to access the field with a
       single read or write that is correctly aligned for the target
       machine.  In this case GCC falls back to generating multiple
!      accesses rather than code that will fault or truncate the result
!      at run time.
  
!      Note:  Due to restrictions of the C/C++11 memory model, write
       accesses are not allowed to touch non bit-field members.  It is
       therefore recommended to define all bits of the field's type as
       bit-field members.
--- 11266,11279 ----
       any portion of the bit-field, or memory-mapped registers unrelated
       to the one being updated.
  
!      In some cases, such as when the 'packed' attribute is applied to a
       structure field, it may not be possible to access the field with a
       single read or write that is correctly aligned for the target
       machine.  In this case GCC falls back to generating multiple
!      accesses rather than code that will fault or truncate the result at
!      run time.
  
!      Note: Due to restrictions of the C/C++11 memory model, write
       accesses are not allowed to touch non bit-field members.  It is
       therefore recommended to define all bits of the field's type as
       bit-field members.
*************** form by either removing `no-' or adding
*** 11329,11343 ****
       The default value of this option is determined by the application
       binary interface for the target processor.
  
! `-fsync-libcalls'
       This option controls whether any out-of-line instance of the
!      `__sync' family of functions may be used to implement the C++11
!      `__atomic' family of functions.
  
       The default value of this option is enabled, thus the only useful
!      form of the option is `-fno-sync-libcalls'.  This option is used in
!      the implementation of the `libatomic' runtime library.
! 
  
  
  File: gcc.info,  Node: Developer Options,  Next: Submodel Options,  Prev: Code Gen Options,  Up: Invoking GCC
--- 11281,11294 ----
       The default value of this option is determined by the application
       binary interface for the target processor.
  
! '-fsync-libcalls'
       This option controls whether any out-of-line instance of the
!      '__sync' family of functions may be used to implement the C++11
!      '__atomic' family of functions.
  
       The default value of this option is enabled, thus the only useful
!      form of the option is '-fno-sync-libcalls'.  This option is used in
!      the implementation of the 'libatomic' runtime library.
  
  
  File: gcc.info,  Node: Developer Options,  Next: Submodel Options,  Prev: Code Gen Options,  Up: Invoking GCC
*************** execution time; and that print informati
*** 11354,11691 ****
  such as where it searches for libraries.  You should rarely need to use
  any of these options for ordinary compilation and linking tasks.
  
! `-dLETTERS'
! `-fdump-rtl-PASS'
! `-fdump-rtl-PASS=FILENAME'
       Says to make debugging dumps during compilation at times specified
       by LETTERS.  This is used for debugging the RTL-based passes of the
       compiler.  The file names for most of the dumps are made by
       appending a pass number and a word to the DUMPNAME, and the files
       are created in the directory of the output file.  In case of
!      `=FILENAME' option, the dump is output on the given file instead
!      of the pass numbered dump files.  Note that the pass number is
       assigned as passes are registered into the pass manager.  Most
       passes are registered in the order that they will execute and for
       these passes the number corresponds to the pass execution order.
       However, passes registered by plugins, passes specific to
       compilation targets, or passes that are otherwise registered after
!      all the other passes are numbered higher than a pass named
!      "final", even if they are executed earlier.  DUMPNAME is generated
!      from the name of the output file if explicitly specified and not
!      an executable, otherwise it is the basename of the source file.
!      These switches may have different effects when `-E' is used for
       preprocessing.
  
!      Debug dumps can be enabled with a `-fdump-rtl' switch or some `-d'
       option LETTERS.  Here are the possible letters for use in PASS and
       LETTERS, and their meanings:
  
!     `-fdump-rtl-alignments'
            Dump after branch alignments have been computed.
  
!     `-fdump-rtl-asmcons'
            Dump after fixing rtl statements that have unsatisfied in/out
            constraints.
  
!     `-fdump-rtl-auto_inc_dec'
            Dump after auto-inc-dec discovery.  This pass is only run on
            architectures that have auto inc or auto dec instructions.
  
!     `-fdump-rtl-barriers'
            Dump after cleaning up the barrier instructions.
  
!     `-fdump-rtl-bbpart'
            Dump after partitioning hot and cold basic blocks.
  
!     `-fdump-rtl-bbro'
            Dump after block reordering.
  
!     `-fdump-rtl-btl1'
!     `-fdump-rtl-btl2'
!           `-fdump-rtl-btl1' and `-fdump-rtl-btl2' enable dumping after
            the two branch target load optimization passes.
  
!     `-fdump-rtl-bypass'
            Dump after jump bypassing and control flow optimizations.
  
!     `-fdump-rtl-combine'
            Dump after the RTL instruction combination pass.
  
!     `-fdump-rtl-compgotos'
            Dump after duplicating the computed gotos.
  
!     `-fdump-rtl-ce1'
!     `-fdump-rtl-ce2'
!     `-fdump-rtl-ce3'
!           `-fdump-rtl-ce1', `-fdump-rtl-ce2', and `-fdump-rtl-ce3'
            enable dumping after the three if conversion passes.
  
!     `-fdump-rtl-cprop_hardreg'
            Dump after hard register copy propagation.
  
!     `-fdump-rtl-csa'
            Dump after combining stack adjustments.
  
!     `-fdump-rtl-cse1'
!     `-fdump-rtl-cse2'
!           `-fdump-rtl-cse1' and `-fdump-rtl-cse2' enable dumping after
            the two common subexpression elimination passes.
  
!     `-fdump-rtl-dce'
            Dump after the standalone dead code elimination passes.
  
!     `-fdump-rtl-dbr'
            Dump after delayed branch scheduling.
  
!     `-fdump-rtl-dce1'
!     `-fdump-rtl-dce2'
!           `-fdump-rtl-dce1' and `-fdump-rtl-dce2' enable dumping after
            the two dead store elimination passes.
  
!     `-fdump-rtl-eh'
            Dump after finalization of EH handling code.
  
!     `-fdump-rtl-eh_ranges'
            Dump after conversion of EH handling range regions.
  
!     `-fdump-rtl-expand'
            Dump after RTL generation.
  
!     `-fdump-rtl-fwprop1'
!     `-fdump-rtl-fwprop2'
!           `-fdump-rtl-fwprop1' and `-fdump-rtl-fwprop2' enable dumping
            after the two forward propagation passes.
  
!     `-fdump-rtl-gcse1'
!     `-fdump-rtl-gcse2'
!           `-fdump-rtl-gcse1' and `-fdump-rtl-gcse2' enable dumping
!           after global common subexpression elimination.
  
!     `-fdump-rtl-init-regs'
            Dump after the initialization of the registers.
  
!     `-fdump-rtl-initvals'
            Dump after the computation of the initial value sets.
  
!     `-fdump-rtl-into_cfglayout'
            Dump after converting to cfglayout mode.
  
!     `-fdump-rtl-ira'
            Dump after iterated register allocation.
  
!     `-fdump-rtl-jump'
            Dump after the second jump optimization.
  
!     `-fdump-rtl-loop2'
!           `-fdump-rtl-loop2' enables dumping after the rtl loop
            optimization passes.
  
!     `-fdump-rtl-mach'
            Dump after performing the machine dependent reorganization
            pass, if that pass exists.
  
!     `-fdump-rtl-mode_sw'
            Dump after removing redundant mode switches.
  
!     `-fdump-rtl-rnreg'
            Dump after register renumbering.
  
!     `-fdump-rtl-outof_cfglayout'
            Dump after converting from cfglayout mode.
  
!     `-fdump-rtl-peephole2'
            Dump after the peephole pass.
  
!     `-fdump-rtl-postreload'
            Dump after post-reload optimizations.
  
!     `-fdump-rtl-pro_and_epilogue'
            Dump after generating the function prologues and epilogues.
  
!     `-fdump-rtl-sched1'
!     `-fdump-rtl-sched2'
!           `-fdump-rtl-sched1' and `-fdump-rtl-sched2' enable dumping
            after the basic block scheduling passes.
  
!     `-fdump-rtl-ree'
            Dump after sign/zero extension elimination.
  
!     `-fdump-rtl-seqabstr'
            Dump after common sequence discovery.
  
!     `-fdump-rtl-shorten'
            Dump after shortening branches.
  
!     `-fdump-rtl-sibling'
            Dump after sibling call optimizations.
  
!     `-fdump-rtl-split1'
!     `-fdump-rtl-split2'
!     `-fdump-rtl-split3'
!     `-fdump-rtl-split4'
!     `-fdump-rtl-split5'
            These options enable dumping after five rounds of instruction
            splitting.
  
!     `-fdump-rtl-sms'
            Dump after modulo scheduling.  This pass is only run on some
            architectures.
  
!     `-fdump-rtl-stack'
            Dump after conversion from GCC's "flat register file"
            registers to the x87's stack-like registers.  This pass is
            only run on x86 variants.
  
!     `-fdump-rtl-subreg1'
!     `-fdump-rtl-subreg2'
!           `-fdump-rtl-subreg1' and `-fdump-rtl-subreg2' enable dumping
            after the two subreg expansion passes.
  
!     `-fdump-rtl-unshare'
            Dump after all rtl has been unshared.
  
!     `-fdump-rtl-vartrack'
            Dump after variable tracking.
  
!     `-fdump-rtl-vregs'
            Dump after converting virtual registers to hard registers.
  
!     `-fdump-rtl-web'
            Dump after live range splitting.
  
!     `-fdump-rtl-regclass'
!     `-fdump-rtl-subregs_of_mode_init'
!     `-fdump-rtl-subregs_of_mode_finish'
!     `-fdump-rtl-dfinit'
!     `-fdump-rtl-dfinish'
            These dumps are defined but always produce empty files.
  
!     `-da'
!     `-fdump-rtl-all'
            Produce all the dumps listed above.
  
!     `-dA'
            Annotate the assembler output with miscellaneous debugging
            information.
  
!     `-dD'
            Dump all macro definitions, at the end of preprocessing, in
            addition to normal output.
  
!     `-dH'
            Produce a core dump whenever an error occurs.
  
!     `-dp'
            Annotate the assembler output with a comment indicating which
            pattern and alternative is used.  The length of each
            instruction is also printed.
  
!     `-dP'
            Dump the RTL in the assembler output as a comment before each
!           instruction.  Also turns on `-dp' annotation.
  
!     `-dx'
            Just generate RTL for a function instead of compiling it.
!           Usually used with `-fdump-rtl-expand'.
  
! `-fdump-noaddr'
!      When doing debugging dumps, suppress address output.  This makes
!      it more feasible to use diff on debugging dumps for compiler
       invocations with different compiler binaries and/or different text
       / bss / data / heap / stack / dso start locations.
  
! `-freport-bug'
       Collect and dump debug information into a temporary file if an
       internal compiler error (ICE) occurs.
  
! `-fdump-unnumbered'
       When doing debugging dumps, suppress instruction numbers and
       address output.  This makes it more feasible to use diff on
!      debugging dumps for compiler invocations with different options,
!      in particular with and without `-g'.
  
! `-fdump-unnumbered-links'
!      When doing debugging dumps (see `-d' option above), suppress
       instruction numbers for the links to the previous and next
       instructions in a sequence.
  
! `-fdump-translation-unit (C++ only)'
! `-fdump-translation-unit-OPTIONS (C++ only)'
       Dump a representation of the tree structure for the entire
       translation unit to a file.  The file name is made by appending
!      `.tu' to the source file name, and the file is created in the same
!      directory as the output file.  If the `-OPTIONS' form is used,
       OPTIONS controls the details of the dump as described for the
!      `-fdump-tree' options.
  
! `-fdump-class-hierarchy (C++ only)'
! `-fdump-class-hierarchy-OPTIONS (C++ only)'
       Dump a representation of each class's hierarchy and virtual
       function table layout to a file.  The file name is made by
!      appending `.class' to the source file name, and the file is
!      created in the same directory as the output file.  If the
!      `-OPTIONS' form is used, OPTIONS controls the details of the dump
!      as described for the `-fdump-tree' options.
  
! `-fdump-ipa-SWITCH'
       Control the dumping at various stages of inter-procedural analysis
       language tree to a file.  The file name is generated by appending a
       switch specific suffix to the source file name, and the file is
       created in the same directory as the output file.  The following
       dumps are possible:
  
!     `all'
            Enables all inter-procedural analysis dumps.
  
!     `cgraph'
            Dumps information about call-graph optimization, unused
            function removal, and inlining decisions.
  
!     `inline'
            Dump after function inlining.
  
! 
! `-fdump-passes'
       Dump the list of optimization passes that are turned on and off by
       the current command-line options.
  
! `-fdump-statistics-OPTION'
       Enable and control dumping of pass statistics in a separate file.
       The file name is generated by appending a suffix ending in
!      `.statistics' to the source file name, and the file is created in
!      the same directory as the output file.  If the `-OPTION' form is
!      used, `-stats' causes counters to be summed over the whole
!      compilation unit while `-details' dumps every event as the passes
       generate them.  The default with no option is to sum counters for
       each function compiled.
  
! `-fdump-tree-SWITCH'
! `-fdump-tree-SWITCH-OPTIONS'
! `-fdump-tree-SWITCH-OPTIONS=FILENAME'
       Control the dumping at various stages of processing the
       intermediate language tree to a file.  The file name is generated
       by appending a switch-specific suffix to the source file name, and
!      the file is created in the same directory as the output file. In
!      case of `=FILENAME' option, the dump is output on the given file
!      instead of the auto named dump files.  If the `-OPTIONS' form is
!      used, OPTIONS is a list of `-' separated options which control the
       details of the dump.  Not all options are applicable to all dumps;
       those that are not meaningful are ignored.  The following options
       are available
  
!     `address'
            Print the address of each node.  Usually this is not
            meaningful as it changes according to the environment and
!           source file.  Its primary use is for tying up a dump file
!           with a debug environment.
! 
!     `asmname'
!           If `DECL_ASSEMBLER_NAME' has been set for a given decl, use
!           that in the dump instead of `DECL_NAME'.  Its primary use is
            ease of use working backward from mangled names in the
            assembly file.
! 
!     `slim'
            When dumping front-end intermediate representations, inhibit
            dumping of members of a scope or body of a function merely
            because that scope has been reached.  Only dump such items
--- 11305,11639 ----
  such as where it searches for libraries.  You should rarely need to use
  any of these options for ordinary compilation and linking tasks.
  
! '-dLETTERS'
! '-fdump-rtl-PASS'
! '-fdump-rtl-PASS=FILENAME'
       Says to make debugging dumps during compilation at times specified
       by LETTERS.  This is used for debugging the RTL-based passes of the
       compiler.  The file names for most of the dumps are made by
       appending a pass number and a word to the DUMPNAME, and the files
       are created in the directory of the output file.  In case of
!      '=FILENAME' option, the dump is output on the given file instead of
!      the pass numbered dump files.  Note that the pass number is
       assigned as passes are registered into the pass manager.  Most
       passes are registered in the order that they will execute and for
       these passes the number corresponds to the pass execution order.
       However, passes registered by plugins, passes specific to
       compilation targets, or passes that are otherwise registered after
!      all the other passes are numbered higher than a pass named "final",
!      even if they are executed earlier.  DUMPNAME is generated from the
!      name of the output file if explicitly specified and not an
!      executable, otherwise it is the basename of the source file.  These
!      switches may have different effects when '-E' is used for
       preprocessing.
  
!      Debug dumps can be enabled with a '-fdump-rtl' switch or some '-d'
       option LETTERS.  Here are the possible letters for use in PASS and
       LETTERS, and their meanings:
  
!      '-fdump-rtl-alignments'
            Dump after branch alignments have been computed.
  
!      '-fdump-rtl-asmcons'
            Dump after fixing rtl statements that have unsatisfied in/out
            constraints.
  
!      '-fdump-rtl-auto_inc_dec'
            Dump after auto-inc-dec discovery.  This pass is only run on
            architectures that have auto inc or auto dec instructions.
  
!      '-fdump-rtl-barriers'
            Dump after cleaning up the barrier instructions.
  
!      '-fdump-rtl-bbpart'
            Dump after partitioning hot and cold basic blocks.
  
!      '-fdump-rtl-bbro'
            Dump after block reordering.
  
!      '-fdump-rtl-btl1'
!      '-fdump-rtl-btl2'
!           '-fdump-rtl-btl1' and '-fdump-rtl-btl2' enable dumping after
            the two branch target load optimization passes.
  
!      '-fdump-rtl-bypass'
            Dump after jump bypassing and control flow optimizations.
  
!      '-fdump-rtl-combine'
            Dump after the RTL instruction combination pass.
  
!      '-fdump-rtl-compgotos'
            Dump after duplicating the computed gotos.
  
!      '-fdump-rtl-ce1'
!      '-fdump-rtl-ce2'
!      '-fdump-rtl-ce3'
!           '-fdump-rtl-ce1', '-fdump-rtl-ce2', and '-fdump-rtl-ce3'
            enable dumping after the three if conversion passes.
  
!      '-fdump-rtl-cprop_hardreg'
            Dump after hard register copy propagation.
  
!      '-fdump-rtl-csa'
            Dump after combining stack adjustments.
  
!      '-fdump-rtl-cse1'
!      '-fdump-rtl-cse2'
!           '-fdump-rtl-cse1' and '-fdump-rtl-cse2' enable dumping after
            the two common subexpression elimination passes.
  
!      '-fdump-rtl-dce'
            Dump after the standalone dead code elimination passes.
  
!      '-fdump-rtl-dbr'
            Dump after delayed branch scheduling.
  
!      '-fdump-rtl-dce1'
!      '-fdump-rtl-dce2'
!           '-fdump-rtl-dce1' and '-fdump-rtl-dce2' enable dumping after
            the two dead store elimination passes.
  
!      '-fdump-rtl-eh'
            Dump after finalization of EH handling code.
  
!      '-fdump-rtl-eh_ranges'
            Dump after conversion of EH handling range regions.
  
!      '-fdump-rtl-expand'
            Dump after RTL generation.
  
!      '-fdump-rtl-fwprop1'
!      '-fdump-rtl-fwprop2'
!           '-fdump-rtl-fwprop1' and '-fdump-rtl-fwprop2' enable dumping
            after the two forward propagation passes.
  
!      '-fdump-rtl-gcse1'
!      '-fdump-rtl-gcse2'
!           '-fdump-rtl-gcse1' and '-fdump-rtl-gcse2' enable dumping after
!           global common subexpression elimination.
  
!      '-fdump-rtl-init-regs'
            Dump after the initialization of the registers.
  
!      '-fdump-rtl-initvals'
            Dump after the computation of the initial value sets.
  
!      '-fdump-rtl-into_cfglayout'
            Dump after converting to cfglayout mode.
  
!      '-fdump-rtl-ira'
            Dump after iterated register allocation.
  
!      '-fdump-rtl-jump'
            Dump after the second jump optimization.
  
!      '-fdump-rtl-loop2'
!           '-fdump-rtl-loop2' enables dumping after the rtl loop
            optimization passes.
  
!      '-fdump-rtl-mach'
            Dump after performing the machine dependent reorganization
            pass, if that pass exists.
  
!      '-fdump-rtl-mode_sw'
            Dump after removing redundant mode switches.
  
!      '-fdump-rtl-rnreg'
            Dump after register renumbering.
  
!      '-fdump-rtl-outof_cfglayout'
            Dump after converting from cfglayout mode.
  
!      '-fdump-rtl-peephole2'
            Dump after the peephole pass.
  
!      '-fdump-rtl-postreload'
            Dump after post-reload optimizations.
  
!      '-fdump-rtl-pro_and_epilogue'
            Dump after generating the function prologues and epilogues.
  
!      '-fdump-rtl-sched1'
!      '-fdump-rtl-sched2'
!           '-fdump-rtl-sched1' and '-fdump-rtl-sched2' enable dumping
            after the basic block scheduling passes.
  
!      '-fdump-rtl-ree'
            Dump after sign/zero extension elimination.
  
!      '-fdump-rtl-seqabstr'
            Dump after common sequence discovery.
  
!      '-fdump-rtl-shorten'
            Dump after shortening branches.
  
!      '-fdump-rtl-sibling'
            Dump after sibling call optimizations.
  
!      '-fdump-rtl-split1'
!      '-fdump-rtl-split2'
!      '-fdump-rtl-split3'
!      '-fdump-rtl-split4'
!      '-fdump-rtl-split5'
            These options enable dumping after five rounds of instruction
            splitting.
  
!      '-fdump-rtl-sms'
            Dump after modulo scheduling.  This pass is only run on some
            architectures.
  
!      '-fdump-rtl-stack'
            Dump after conversion from GCC's "flat register file"
            registers to the x87's stack-like registers.  This pass is
            only run on x86 variants.
  
!      '-fdump-rtl-subreg1'
!      '-fdump-rtl-subreg2'
!           '-fdump-rtl-subreg1' and '-fdump-rtl-subreg2' enable dumping
            after the two subreg expansion passes.
  
!      '-fdump-rtl-unshare'
            Dump after all rtl has been unshared.
  
!      '-fdump-rtl-vartrack'
            Dump after variable tracking.
  
!      '-fdump-rtl-vregs'
            Dump after converting virtual registers to hard registers.
  
!      '-fdump-rtl-web'
            Dump after live range splitting.
  
!      '-fdump-rtl-regclass'
!      '-fdump-rtl-subregs_of_mode_init'
!      '-fdump-rtl-subregs_of_mode_finish'
!      '-fdump-rtl-dfinit'
!      '-fdump-rtl-dfinish'
            These dumps are defined but always produce empty files.
  
!      '-da'
!      '-fdump-rtl-all'
            Produce all the dumps listed above.
  
!      '-dA'
            Annotate the assembler output with miscellaneous debugging
            information.
  
!      '-dD'
            Dump all macro definitions, at the end of preprocessing, in
            addition to normal output.
  
!      '-dH'
            Produce a core dump whenever an error occurs.
  
!      '-dp'
            Annotate the assembler output with a comment indicating which
            pattern and alternative is used.  The length of each
            instruction is also printed.
  
!      '-dP'
            Dump the RTL in the assembler output as a comment before each
!           instruction.  Also turns on '-dp' annotation.
  
!      '-dx'
            Just generate RTL for a function instead of compiling it.
!           Usually used with '-fdump-rtl-expand'.
  
! '-fdump-noaddr'
!      When doing debugging dumps, suppress address output.  This makes it
!      more feasible to use diff on debugging dumps for compiler
       invocations with different compiler binaries and/or different text
       / bss / data / heap / stack / dso start locations.
  
! '-freport-bug'
       Collect and dump debug information into a temporary file if an
       internal compiler error (ICE) occurs.
  
! '-fdump-unnumbered'
       When doing debugging dumps, suppress instruction numbers and
       address output.  This makes it more feasible to use diff on
!      debugging dumps for compiler invocations with different options, in
!      particular with and without '-g'.
  
! '-fdump-unnumbered-links'
!      When doing debugging dumps (see '-d' option above), suppress
       instruction numbers for the links to the previous and next
       instructions in a sequence.
  
! '-fdump-translation-unit (C++ only)'
! '-fdump-translation-unit-OPTIONS (C++ only)'
       Dump a representation of the tree structure for the entire
       translation unit to a file.  The file name is made by appending
!      '.tu' to the source file name, and the file is created in the same
!      directory as the output file.  If the '-OPTIONS' form is used,
       OPTIONS controls the details of the dump as described for the
!      '-fdump-tree' options.
  
! '-fdump-class-hierarchy (C++ only)'
! '-fdump-class-hierarchy-OPTIONS (C++ only)'
       Dump a representation of each class's hierarchy and virtual
       function table layout to a file.  The file name is made by
!      appending '.class' to the source file name, and the file is created
!      in the same directory as the output file.  If the '-OPTIONS' form
!      is used, OPTIONS controls the details of the dump as described for
!      the '-fdump-tree' options.
  
! '-fdump-ipa-SWITCH'
       Control the dumping at various stages of inter-procedural analysis
       language tree to a file.  The file name is generated by appending a
       switch specific suffix to the source file name, and the file is
       created in the same directory as the output file.  The following
       dumps are possible:
  
!      'all'
            Enables all inter-procedural analysis dumps.
  
!      'cgraph'
            Dumps information about call-graph optimization, unused
            function removal, and inlining decisions.
  
!      'inline'
            Dump after function inlining.
  
! '-fdump-passes'
       Dump the list of optimization passes that are turned on and off by
       the current command-line options.
  
! '-fdump-statistics-OPTION'
       Enable and control dumping of pass statistics in a separate file.
       The file name is generated by appending a suffix ending in
!      '.statistics' to the source file name, and the file is created in
!      the same directory as the output file.  If the '-OPTION' form is
!      used, '-stats' causes counters to be summed over the whole
!      compilation unit while '-details' dumps every event as the passes
       generate them.  The default with no option is to sum counters for
       each function compiled.
  
! '-fdump-tree-SWITCH'
! '-fdump-tree-SWITCH-OPTIONS'
! '-fdump-tree-SWITCH-OPTIONS=FILENAME'
       Control the dumping at various stages of processing the
       intermediate language tree to a file.  The file name is generated
       by appending a switch-specific suffix to the source file name, and
!      the file is created in the same directory as the output file.  In
!      case of '=FILENAME' option, the dump is output on the given file
!      instead of the auto named dump files.  If the '-OPTIONS' form is
!      used, OPTIONS is a list of '-' separated options which control the
       details of the dump.  Not all options are applicable to all dumps;
       those that are not meaningful are ignored.  The following options
       are available
  
!      'address'
            Print the address of each node.  Usually this is not
            meaningful as it changes according to the environment and
!           source file.  Its primary use is for tying up a dump file with
!           a debug environment.
!      'asmname'
!           If 'DECL_ASSEMBLER_NAME' has been set for a given decl, use
!           that in the dump instead of 'DECL_NAME'.  Its primary use is
            ease of use working backward from mangled names in the
            assembly file.
!      'slim'
            When dumping front-end intermediate representations, inhibit
            dumping of members of a scope or body of a function merely
            because that scope has been reached.  Only dump such items
*************** any of these options for ordinary compil
*** 11696,11974 ****
  
            When dumping RTL, print the RTL in slim (condensed) form
            instead of the default LISP-like representation.
! 
!     `raw'
            Print a raw representation of the tree.  By default, trees are
            pretty-printed into a C-like representation.
! 
!     `details'
!           Enable more detailed dumps (not honored by every dump
!           option). Also include information from the optimization
!           passes.
! 
!     `stats'
            Enable dumping various statistics about the pass (not honored
            by every dump option).
! 
!     `blocks'
            Enable showing basic block boundaries (disabled in raw dumps).
! 
!     `graph'
            For each of the other indicated dump files
!           (`-fdump-rtl-PASS'), dump a representation of the control
!           flow graph suitable for viewing with GraphViz to
!           `FILE.PASSID.PASS.dot'.  Each function in the file is
            pretty-printed as a subgraph, so that GraphViz can render them
            all in a single plot.
  
!           This option currently only works for RTL dumps, and the RTL
!           is always dumped in slim form.
! 
!     `vops'
            Enable showing virtual operands for every statement.
! 
!     `lineno'
            Enable showing line numbers for statements.
! 
!     `uid'
!           Enable showing the unique ID (`DECL_UID') for each variable.
! 
!     `verbose'
            Enable showing the tree dump for each statement.
! 
!     `eh'
            Enable showing the EH region number holding each statement.
! 
!     `scev'
            Enable showing scalar evolution analysis details.
! 
!     `optimized'
            Enable showing optimization information (only available in
            certain passes).
! 
!     `missed'
!           Enable showing missed optimization information (only
!           available in certain passes).
! 
!     `note'
!           Enable other detailed optimization information (only
!           available in certain passes).
! 
!     `=FILENAME'
            Instead of an auto named dump file, output into the given file
!           name. The file names `stdout' and `stderr' are treated
            specially and are considered already open standard streams.
            For example,
  
                 gcc -O2 -ftree-vectorize -fdump-tree-vect-blocks=foo.dump
                      -fdump-tree-pre=stderr file.c
  
!           outputs vectorizer dump into `foo.dump', while the PRE dump is
!           output on to `stderr'. If two conflicting dump filenames are
            given for the same pass, then the latter option overrides the
            earlier one.
  
!     `split-paths'
            Dump each function after splitting paths to loop backedges.
!           The file name is made by appending `.split-paths' to the
            source file name.
  
!     `all'
!           Turn on all options, except `raw', `slim', `verbose' and
!           `lineno'.
  
!     `optall'
!           Turn on all optimization options, i.e., `optimized',
!           `missed', and `note'.
  
       The following tree dumps are possible:
-     `original'
-           Dump before any tree based optimization, to `FILE.original'.
  
!     `optimized'
!           Dump after all tree based optimization, to `FILE.optimized'.
  
!     `gimple'
!           Dump each function before and after the gimplification pass
!           to a file.  The file name is made by appending `.gimple' to
!           the source file name.
  
!     `cfg'
            Dump the control flow graph of each function to a file.  The
!           file name is made by appending `.cfg' to the source file name.
  
!     `ch'
            Dump each function after copying loop headers.  The file name
!           is made by appending `.ch' to the source file name.
  
!     `ssa'
!           Dump SSA related information to a file.  The file name is
!           made by appending `.ssa' to the source file name.
  
!     `alias'
!           Dump aliasing information for each function.  The file name
!           is made by appending `.alias' to the source file name.
  
!     `ccp'
            Dump each function after CCP.  The file name is made by
!           appending `.ccp' to the source file name.
  
!     `storeccp'
            Dump each function after STORE-CCP.  The file name is made by
!           appending `.storeccp' to the source file name.
  
!     `pre'
            Dump trees after partial redundancy elimination.  The file
!           name is made by appending `.pre' to the source file name.
  
!     `fre'
            Dump trees after full redundancy elimination.  The file name
!           is made by appending `.fre' to the source file name.
  
!     `copyprop'
            Dump trees after copy propagation.  The file name is made by
!           appending `.copyprop' to the source file name.
  
!     `store_copyprop'
            Dump trees after store copy-propagation.  The file name is
!           made by appending `.store_copyprop' to the source file name.
  
!     `dce'
!           Dump each function after dead code elimination.  The file
!           name is made by appending `.dce' to the source file name.
  
!     `sra'
            Dump each function after performing scalar replacement of
!           aggregates.  The file name is made by appending `.sra' to the
            source file name.
  
!     `sink'
            Dump each function after performing code sinking.  The file
!           name is made by appending `.sink' to the source file name.
  
!     `dom'
            Dump each function after applying dominator tree
!           optimizations.  The file name is made by appending `.dom' to
            the source file name.
  
!     `dse'
!           Dump each function after applying dead store elimination.
!           The file name is made by appending `.dse' to the source file
!           name.
  
!     `phiopt'
            Dump each function after optimizing PHI nodes into
            straightline code.  The file name is made by appending
!           `.phiopt' to the source file name.
  
!     `backprop'
            Dump each function after back-propagating use information up
            the definition chain.  The file name is made by appending
!           `.backprop' to the source file name.
  
!     `forwprop'
            Dump each function after forward propagating single use
!           variables.  The file name is made by appending `.forwprop' to
            the source file name.
  
!     `nrv'
            Dump each function after applying the named return value
            optimization on generic trees.  The file name is made by
!           appending `.nrv' to the source file name.
  
!     `vect'
!           Dump each function after applying vectorization of loops.
!           The file name is made by appending `.vect' to the source file
            name.
  
!     `slp'
            Dump each function after applying vectorization of basic
!           blocks.  The file name is made by appending `.slp' to the
            source file name.
  
!     `vrp'
!           Dump each function after Value Range Propagation (VRP).  The
!           file name is made by appending `.vrp' to the source file name.
  
!     `oaccdevlow'
            Dump each function after applying device-specific OpenACC
            transformations.  The file name is made by appending
!           `.oaccdevlow' to the source file name.
  
!     `all'
!           Enable all the available tree dumps with the flags provided
!           in this option.
  
! `-fopt-info'
! `-fopt-info-OPTIONS'
! `-fopt-info-OPTIONS=FILENAME'
!      Controls optimization dumps from various optimization passes. If
!      the `-OPTIONS' form is used, OPTIONS is a list of `-' separated
       option keywords to select the dump details and optimizations.
  
       The OPTIONS can be divided into two groups: options describing the
       verbosity of the dump, and options describing which optimizations
!      should be included. The options from both the groups can be freely
!      mixed as they are non-overlapping. However, in case of any
       conflicts, the later options override the earlier options on the
       command line.
  
       The following options control the dump verbosity:
  
!     `optimized'
            Print information when an optimization is successfully
!           applied. It is up to a pass to decide which information is
!           relevant. For example, the vectorizer passes print the source
            location of loops which are successfully vectorized.
! 
!     `missed'
!           Print information about missed optimizations. Individual
            passes control which information to include in the output.
! 
!     `note'
            Print verbose information about optimizations, such as certain
            transformations, more detailed messages about decisions etc.
! 
!     `all'
!           Print detailed optimization information. This includes
!           `optimized', `missed', and `note'.
  
       One or more of the following option keywords can be used to
       describe a group of optimizations:
  
!     `ipa'
            Enable dumps from all interprocedural optimizations.
! 
!     `loop'
            Enable dumps from all loop optimizations.
! 
!     `inline'
            Enable dumps from all inlining optimizations.
! 
!     `vec'
            Enable dumps from all vectorization optimizations.
! 
!     `optall'
!           Enable dumps from all optimizations. This is a superset of
            the optimization groups listed above.
  
!      If OPTIONS is omitted, it defaults to `optimized-optall', which
       means to dump all info about successful optimizations from all the
       passes.
  
!      If the FILENAME is provided, then the dumps from all the
!      applicable optimizations are concatenated into the FILENAME.
!      Otherwise the dump is output onto `stderr'. Though multiple
!      `-fopt-info' options are accepted, only one of them can include a
!      FILENAME. If other filenames are provided then all but the first
!      such option are ignored.
  
       Note that the output FILENAME is overwritten in case of multiple
!      translation units. If a combined output from multiple translation
!      units is desired, `stderr' should be used instead.
  
       In the following example, the optimization info is output to
!      `stderr':
  
            gcc -O3 -fopt-info
  
--- 11644,11899 ----
  
            When dumping RTL, print the RTL in slim (condensed) form
            instead of the default LISP-like representation.
!      'raw'
            Print a raw representation of the tree.  By default, trees are
            pretty-printed into a C-like representation.
!      'details'
!           Enable more detailed dumps (not honored by every dump option).
!           Also include information from the optimization passes.
!      'stats'
            Enable dumping various statistics about the pass (not honored
            by every dump option).
!      'blocks'
            Enable showing basic block boundaries (disabled in raw dumps).
!      'graph'
            For each of the other indicated dump files
!           ('-fdump-rtl-PASS'), dump a representation of the control flow
!           graph suitable for viewing with GraphViz to
!           'FILE.PASSID.PASS.dot'.  Each function in the file is
            pretty-printed as a subgraph, so that GraphViz can render them
            all in a single plot.
  
!           This option currently only works for RTL dumps, and the RTL is
!           always dumped in slim form.
!      'vops'
            Enable showing virtual operands for every statement.
!      'lineno'
            Enable showing line numbers for statements.
!      'uid'
!           Enable showing the unique ID ('DECL_UID') for each variable.
!      'verbose'
            Enable showing the tree dump for each statement.
!      'eh'
            Enable showing the EH region number holding each statement.
!      'scev'
            Enable showing scalar evolution analysis details.
!      'optimized'
            Enable showing optimization information (only available in
            certain passes).
!      'missed'
!           Enable showing missed optimization information (only available
!           in certain passes).
!      'note'
!           Enable other detailed optimization information (only available
!           in certain passes).
!      '=FILENAME'
            Instead of an auto named dump file, output into the given file
!           name.  The file names 'stdout' and 'stderr' are treated
            specially and are considered already open standard streams.
            For example,
  
                 gcc -O2 -ftree-vectorize -fdump-tree-vect-blocks=foo.dump
                      -fdump-tree-pre=stderr file.c
  
!           outputs vectorizer dump into 'foo.dump', while the PRE dump is
!           output on to 'stderr'.  If two conflicting dump filenames are
            given for the same pass, then the latter option overrides the
            earlier one.
  
!      'split-paths'
            Dump each function after splitting paths to loop backedges.
!           The file name is made by appending '.split-paths' to the
            source file name.
  
!      'all'
!           Turn on all options, except 'raw', 'slim', 'verbose' and
!           'lineno'.
  
!      'optall'
!           Turn on all optimization options, i.e., 'optimized', 'missed',
!           and 'note'.
  
       The following tree dumps are possible:
  
!      'original'
!           Dump before any tree based optimization, to 'FILE.original'.
  
!      'optimized'
!           Dump after all tree based optimization, to 'FILE.optimized'.
  
!      'gimple'
!           Dump each function before and after the gimplification pass to
!           a file.  The file name is made by appending '.gimple' to the
!           source file name.
! 
!      'cfg'
            Dump the control flow graph of each function to a file.  The
!           file name is made by appending '.cfg' to the source file name.
  
!      'ch'
            Dump each function after copying loop headers.  The file name
!           is made by appending '.ch' to the source file name.
  
!      'ssa'
!           Dump SSA related information to a file.  The file name is made
!           by appending '.ssa' to the source file name.
  
!      'alias'
!           Dump aliasing information for each function.  The file name is
!           made by appending '.alias' to the source file name.
  
!      'ccp'
            Dump each function after CCP.  The file name is made by
!           appending '.ccp' to the source file name.
  
!      'storeccp'
            Dump each function after STORE-CCP.  The file name is made by
!           appending '.storeccp' to the source file name.
  
!      'pre'
            Dump trees after partial redundancy elimination.  The file
!           name is made by appending '.pre' to the source file name.
  
!      'fre'
            Dump trees after full redundancy elimination.  The file name
!           is made by appending '.fre' to the source file name.
  
!      'copyprop'
            Dump trees after copy propagation.  The file name is made by
!           appending '.copyprop' to the source file name.
  
!      'store_copyprop'
            Dump trees after store copy-propagation.  The file name is
!           made by appending '.store_copyprop' to the source file name.
  
!      'dce'
!           Dump each function after dead code elimination.  The file name
!           is made by appending '.dce' to the source file name.
  
!      'sra'
            Dump each function after performing scalar replacement of
!           aggregates.  The file name is made by appending '.sra' to the
            source file name.
  
!      'sink'
            Dump each function after performing code sinking.  The file
!           name is made by appending '.sink' to the source file name.
  
!      'dom'
            Dump each function after applying dominator tree
!           optimizations.  The file name is made by appending '.dom' to
            the source file name.
  
!      'dse'
!           Dump each function after applying dead store elimination.  The
!           file name is made by appending '.dse' to the source file name.
  
!      'phiopt'
            Dump each function after optimizing PHI nodes into
            straightline code.  The file name is made by appending
!           '.phiopt' to the source file name.
  
!      'backprop'
            Dump each function after back-propagating use information up
            the definition chain.  The file name is made by appending
!           '.backprop' to the source file name.
  
!      'forwprop'
            Dump each function after forward propagating single use
!           variables.  The file name is made by appending '.forwprop' to
            the source file name.
  
!      'nrv'
            Dump each function after applying the named return value
            optimization on generic trees.  The file name is made by
!           appending '.nrv' to the source file name.
  
!      'vect'
!           Dump each function after applying vectorization of loops.  The
!           file name is made by appending '.vect' to the source file
            name.
  
!      'slp'
            Dump each function after applying vectorization of basic
!           blocks.  The file name is made by appending '.slp' to the
            source file name.
  
!      'vrp'
!           Dump each function after Value Range Propagation (VRP). The
!           file name is made by appending '.vrp' to the source file name.
  
!      'oaccdevlow'
            Dump each function after applying device-specific OpenACC
            transformations.  The file name is made by appending
!           '.oaccdevlow' to the source file name.
  
!      'all'
!           Enable all the available tree dumps with the flags provided in
!           this option.
  
! '-fopt-info'
! '-fopt-info-OPTIONS'
! '-fopt-info-OPTIONS=FILENAME'
!      Controls optimization dumps from various optimization passes.  If
!      the '-OPTIONS' form is used, OPTIONS is a list of '-' separated
       option keywords to select the dump details and optimizations.
  
       The OPTIONS can be divided into two groups: options describing the
       verbosity of the dump, and options describing which optimizations
!      should be included.  The options from both the groups can be freely
!      mixed as they are non-overlapping.  However, in case of any
       conflicts, the later options override the earlier options on the
       command line.
  
       The following options control the dump verbosity:
  
!      'optimized'
            Print information when an optimization is successfully
!           applied.  It is up to a pass to decide which information is
!           relevant.  For example, the vectorizer passes print the source
            location of loops which are successfully vectorized.
!      'missed'
!           Print information about missed optimizations.  Individual
            passes control which information to include in the output.
!      'note'
            Print verbose information about optimizations, such as certain
            transformations, more detailed messages about decisions etc.
!      'all'
!           Print detailed optimization information.  This includes
!           'optimized', 'missed', and 'note'.
  
       One or more of the following option keywords can be used to
       describe a group of optimizations:
  
!      'ipa'
            Enable dumps from all interprocedural optimizations.
!      'loop'
            Enable dumps from all loop optimizations.
!      'inline'
            Enable dumps from all inlining optimizations.
!      'vec'
            Enable dumps from all vectorization optimizations.
!      'optall'
!           Enable dumps from all optimizations.  This is a superset of
            the optimization groups listed above.
  
!      If OPTIONS is omitted, it defaults to 'optimized-optall', which
       means to dump all info about successful optimizations from all the
       passes.
  
!      If the FILENAME is provided, then the dumps from all the applicable
!      optimizations are concatenated into the FILENAME.  Otherwise the
!      dump is output onto 'stderr'.  Though multiple '-fopt-info' options
!      are accepted, only one of them can include a FILENAME.  If other
!      filenames are provided then all but the first such option are
!      ignored.
  
       Note that the output FILENAME is overwritten in case of multiple
!      translation units.  If a combined output from multiple translation
!      units is desired, 'stderr' should be used instead.
  
       In the following example, the optimization info is output to
!      'stderr':
  
            gcc -O3 -fopt-info
  
*************** any of these options for ordinary compil
*** 11976,12068 ****
            gcc -O3 -fopt-info-missed=missed.all
  
       outputs missed optimization report from all the passes into
!      `missed.all', and this one:
  
            gcc -O2 -ftree-vectorize -fopt-info-vec-missed
  
       prints information about missed optimization opportunities from
!      vectorization passes on `stderr'.  Note that
!      `-fopt-info-vec-missed' is equivalent to `-fopt-info-missed-vec'.
  
       As another example,
            gcc -O3 -fopt-info-inline-optimized-missed=inline.txt
  
!      outputs information about missed optimizations as well as
!      optimized locations from all the inlining passes into `inline.txt'.
  
       Finally, consider:
  
            gcc -fopt-info-vec-missed=vec.miss -fopt-info-loop-optimized=loop.opt
  
!      Here the two output filenames `vec.miss' and `loop.opt' are in
!      conflict since only one output file is allowed. In this case, only
       the first option takes effect and the subsequent options are
!      ignored. Thus only `vec.miss' is produced which contains dumps
       from the vectorizer about missed opportunities.
  
! `-fsched-verbose=N'
       On targets that use instruction scheduling, this option controls
       the amount of debugging output the scheduler prints to the dump
       files.
  
!      For N greater than zero, `-fsched-verbose' outputs the same
!      information as `-fdump-rtl-sched1' and `-fdump-rtl-sched2'.  For N
       greater than one, it also output basic block probabilities,
       detailed ready list information and unit/insn info.  For N greater
       than two, it includes RTL at abort point, control-flow and regions
!      info.  And for N over four, `-fsched-verbose' also includes
       dependence info.
  
! `-fenable-KIND-PASS'
! `-fdisable-KIND-PASS=RANGE-LIST'
       This is a set of options that are used to explicitly disable/enable
       optimization passes.  These options are intended for use for
!      debugging GCC.  Compiler users should use regular options for
       enabling/disabling passes instead.
  
!     `-fdisable-ipa-PASS'
!           Disable IPA pass PASS. PASS is the pass name.  If the same
!           pass is statically invoked in the compiler multiple times,
!           the pass name should be appended with a sequential number
!           starting from 1.
  
!     `-fdisable-rtl-PASS'
!     `-fdisable-rtl-PASS=RANGE-LIST'
            Disable RTL pass PASS.  PASS is the pass name.  If the same
!           pass is statically invoked in the compiler multiple times,
!           the pass name should be appended with a sequential number
!           starting from 1.  RANGE-LIST is a comma-separated list of
!           function ranges or assembler names.  Each range is a number
!           pair separated by a colon.  The range is inclusive in both
!           ends.  If the range is trivial, the number pair can be
!           simplified as a single number.  If the function's call graph
!           node's UID falls within one of the specified ranges, the PASS
!           is disabled for that function.  The UID is shown in the
!           function header of a dump file, and the pass names can be
!           dumped by using option `-fdump-passes'.
  
!     `-fdisable-tree-PASS'
!     `-fdisable-tree-PASS=RANGE-LIST'
!           Disable tree pass PASS.  See `-fdisable-rtl' for the
            description of option arguments.
  
!     `-fenable-ipa-PASS'
            Enable IPA pass PASS.  PASS is the pass name.  If the same
!           pass is statically invoked in the compiler multiple times,
!           the pass name should be appended with a sequential number
!           starting from 1.
  
!     `-fenable-rtl-PASS'
!     `-fenable-rtl-PASS=RANGE-LIST'
!           Enable RTL pass PASS.  See `-fdisable-rtl' for option argument
            description and examples.
  
!     `-fenable-tree-PASS'
!     `-fenable-tree-PASS=RANGE-LIST'
!           Enable tree pass PASS.  See `-fdisable-rtl' for the
            description of option arguments.
  
- 
       Here are some examples showing uses of these options.
  
  
--- 11901,11993 ----
            gcc -O3 -fopt-info-missed=missed.all
  
       outputs missed optimization report from all the passes into
!      'missed.all', and this one:
  
            gcc -O2 -ftree-vectorize -fopt-info-vec-missed
  
       prints information about missed optimization opportunities from
!      vectorization passes on 'stderr'.  Note that
!      '-fopt-info-vec-missed' is equivalent to '-fopt-info-missed-vec'.
  
       As another example,
            gcc -O3 -fopt-info-inline-optimized-missed=inline.txt
  
!      outputs information about missed optimizations as well as optimized
!      locations from all the inlining passes into 'inline.txt'.
  
       Finally, consider:
  
            gcc -fopt-info-vec-missed=vec.miss -fopt-info-loop-optimized=loop.opt
  
!      Here the two output filenames 'vec.miss' and 'loop.opt' are in
!      conflict since only one output file is allowed.  In this case, only
       the first option takes effect and the subsequent options are
!      ignored.  Thus only 'vec.miss' is produced which contains dumps
       from the vectorizer about missed opportunities.
  
! '-fsched-verbose=N'
       On targets that use instruction scheduling, this option controls
       the amount of debugging output the scheduler prints to the dump
       files.
  
!      For N greater than zero, '-fsched-verbose' outputs the same
!      information as '-fdump-rtl-sched1' and '-fdump-rtl-sched2'.  For N
       greater than one, it also output basic block probabilities,
       detailed ready list information and unit/insn info.  For N greater
       than two, it includes RTL at abort point, control-flow and regions
!      info.  And for N over four, '-fsched-verbose' also includes
       dependence info.
  
! '-fenable-KIND-PASS'
! '-fdisable-KIND-PASS=RANGE-LIST'
! 
       This is a set of options that are used to explicitly disable/enable
       optimization passes.  These options are intended for use for
!      debugging GCC. Compiler users should use regular options for
       enabling/disabling passes instead.
  
!      '-fdisable-ipa-PASS'
!           Disable IPA pass PASS.  PASS is the pass name.  If the same
!           pass is statically invoked in the compiler multiple times, the
!           pass name should be appended with a sequential number starting
!           from 1.
  
!      '-fdisable-rtl-PASS'
!      '-fdisable-rtl-PASS=RANGE-LIST'
            Disable RTL pass PASS.  PASS is the pass name.  If the same
!           pass is statically invoked in the compiler multiple times, the
!           pass name should be appended with a sequential number starting
!           from 1.  RANGE-LIST is a comma-separated list of function
!           ranges or assembler names.  Each range is a number pair
!           separated by a colon.  The range is inclusive in both ends.
!           If the range is trivial, the number pair can be simplified as
!           a single number.  If the function's call graph node's UID
!           falls within one of the specified ranges, the PASS is disabled
!           for that function.  The UID is shown in the function header of
!           a dump file, and the pass names can be dumped by using option
!           '-fdump-passes'.
  
!      '-fdisable-tree-PASS'
!      '-fdisable-tree-PASS=RANGE-LIST'
!           Disable tree pass PASS.  See '-fdisable-rtl' for the
            description of option arguments.
  
!      '-fenable-ipa-PASS'
            Enable IPA pass PASS.  PASS is the pass name.  If the same
!           pass is statically invoked in the compiler multiple times, the
!           pass name should be appended with a sequential number starting
!           from 1.
  
!      '-fenable-rtl-PASS'
!      '-fenable-rtl-PASS=RANGE-LIST'
!           Enable RTL pass PASS.  See '-fdisable-rtl' for option argument
            description and examples.
  
!      '-fenable-tree-PASS'
!      '-fenable-tree-PASS=RANGE-LIST'
!           Enable tree pass PASS.  See '-fdisable-rtl' for the
            description of option arguments.
  
       Here are some examples showing uses of these options.
  
  
*************** any of these options for ordinary compil
*** 12081,12096 ****
            # enable tree full unroll
               -fenable-tree-unroll
  
! `-fchecking'
       Enable internal consistency checking.  The default depends on the
       compiler configuration.
  
! `-frandom-seed=STRING'
       This option provides a seed that GCC uses in place of random
       numbers in generating certain symbol names that have to be
       different in every compiled file.  It is also used to place unique
       stamps in coverage data files and the object files that produce
!      them.  You can use the `-frandom-seed' option to produce
       reproducibly identical object files.
  
       The STRING can either be a number (decimal, octal or hex) or an
--- 12006,12022 ----
            # enable tree full unroll
               -fenable-tree-unroll
  
! 
! '-fchecking'
       Enable internal consistency checking.  The default depends on the
       compiler configuration.
  
! '-frandom-seed=STRING'
       This option provides a seed that GCC uses in place of random
       numbers in generating certain symbol names that have to be
       different in every compiled file.  It is also used to place unique
       stamps in coverage data files and the object files that produce
!      them.  You can use the '-frandom-seed' option to produce
       reproducibly identical object files.
  
       The STRING can either be a number (decimal, octal or hex) or an
*************** any of these options for ordinary compil
*** 12099,12136 ****
  
       The STRING should be different for every file you compile.
  
! `-save-temps'
! `-save-temps=cwd'
       Store the usual "temporary" intermediate files permanently; place
       them in the current directory and name them based on the source
!      file.  Thus, compiling `foo.c' with `-c -save-temps' produces files
!      `foo.i' and `foo.s', as well as `foo.o'.  This creates a
!      preprocessed `foo.i' output file even though the compiler now
       normally uses an integrated preprocessor.
  
!      When used in combination with the `-x' command-line option,
!      `-save-temps' is sensible enough to avoid over writing an input
       source file with the same extension as an intermediate file.  The
       corresponding intermediate file may be obtained by renaming the
!      source file before using `-save-temps'.
  
       If you invoke GCC in parallel, compiling several different source
       files that share a common base name in different subdirectories or
       the same source file compiled for multiple output destinations, it
!      is likely that the different parallel compilers will interfere
!      with each other, and overwrite the temporary files.  For instance:
  
            gcc -save-temps -o outdir1/foo.o indir1/foo.c&
            gcc -save-temps -o outdir2/foo.o indir2/foo.c&
  
!      may result in `foo.i' and `foo.o' being written to simultaneously
       by both compilers.
  
! `-save-temps=obj'
       Store the usual "temporary" intermediate files permanently.  If the
!      `-o' option is used, the temporary files are based on the object
!      file.  If the `-o' option is not used, the `-save-temps=obj'
!      switch behaves like `-save-temps'.
  
       For example:
  
--- 12025,12062 ----
  
       The STRING should be different for every file you compile.
  
! '-save-temps'
! '-save-temps=cwd'
       Store the usual "temporary" intermediate files permanently; place
       them in the current directory and name them based on the source
!      file.  Thus, compiling 'foo.c' with '-c -save-temps' produces files
!      'foo.i' and 'foo.s', as well as 'foo.o'.  This creates a
!      preprocessed 'foo.i' output file even though the compiler now
       normally uses an integrated preprocessor.
  
!      When used in combination with the '-x' command-line option,
!      '-save-temps' is sensible enough to avoid over writing an input
       source file with the same extension as an intermediate file.  The
       corresponding intermediate file may be obtained by renaming the
!      source file before using '-save-temps'.
  
       If you invoke GCC in parallel, compiling several different source
       files that share a common base name in different subdirectories or
       the same source file compiled for multiple output destinations, it
!      is likely that the different parallel compilers will interfere with
!      each other, and overwrite the temporary files.  For instance:
  
            gcc -save-temps -o outdir1/foo.o indir1/foo.c&
            gcc -save-temps -o outdir2/foo.o indir2/foo.c&
  
!      may result in 'foo.i' and 'foo.o' being written to simultaneously
       by both compilers.
  
! '-save-temps=obj'
       Store the usual "temporary" intermediate files permanently.  If the
!      '-o' option is used, the temporary files are based on the object
!      file.  If the '-o' option is not used, the '-save-temps=obj' switch
!      behaves like '-save-temps'.
  
       For example:
  
*************** any of these options for ordinary compil
*** 12138,12147 ****
            gcc -save-temps=obj -c bar.c -o dir/xbar.o
            gcc -save-temps=obj foobar.c -o dir2/yfoobar
  
!      creates `foo.i', `foo.s', `dir/xbar.i', `dir/xbar.s',
!      `dir2/yfoobar.i', `dir2/yfoobar.s', and `dir2/yfoobar.o'.
  
! `-time[=FILE]'
       Report the CPU time taken by each subprocess in the compilation
       sequence.  For C source files, this is the compiler proper and
       assembler (plus the linker if linking is done).
--- 12064,12073 ----
            gcc -save-temps=obj -c bar.c -o dir/xbar.o
            gcc -save-temps=obj foobar.c -o dir2/yfoobar
  
!      creates 'foo.i', 'foo.s', 'dir/xbar.i', 'dir/xbar.s',
!      'dir2/yfoobar.i', 'dir2/yfoobar.s', and 'dir2/yfoobar.o'.
  
! '-time[=FILE]'
       Report the CPU time taken by each subprocess in the compilation
       sequence.  For C source files, this is the compiler proper and
       assembler (plus the linker if linking is done).
*************** any of these options for ordinary compil
*** 12157,12164 ****
       time", time spent executing operating system routines on behalf of
       the program.  Both numbers are in seconds.
  
!      With the specification of an output file, the output is appended
!      to the named file, and it looks like this:
  
            0.12 0.01 cc1 OPTIONS
            0.00 0.01 as OPTIONS
--- 12083,12090 ----
       time", time spent executing operating system routines on behalf of
       the program.  Both numbers are in seconds.
  
!      With the specification of an output file, the output is appended to
!      the named file, and it looks like this:
  
            0.12 0.01 cc1 OPTIONS
            0.00 0.01 as OPTIONS
*************** any of these options for ordinary compil
*** 12168,12399 ****
       one can later tell what file was being compiled, and with which
       options.
  
! `-fdump-final-insns[=FILE]'
       Dump the final internal representation (RTL) to FILE.  If the
!      optional argument is omitted (or if FILE is `.'), the name of the
!      dump file is determined by appending `.gkd' to the compilation
       output file name.
  
! `-fcompare-debug[=OPTS]'
       If no error occurs during compilation, run the compiler a second
!      time, adding OPTS and `-fcompare-debug-second' to the arguments
       passed to the second compilation.  Dump the final internal
       representation in both compilations, and print an error if they
       differ.
  
!      If the equal sign is omitted, the default `-gtoggle' is used.
  
!      The environment variable `GCC_COMPARE_DEBUG', if defined, non-empty
!      and nonzero, implicitly enables `-fcompare-debug'.  If
!      `GCC_COMPARE_DEBUG' is defined to a string starting with a dash,
!      then it is used for OPTS, otherwise the default `-gtoggle' is used.
  
!      `-fcompare-debug=', with the equal sign but without OPTS, is
!      equivalent to `-fno-compare-debug', which disables the dumping of
       the final representation and the second compilation, preventing
!      even `GCC_COMPARE_DEBUG' from taking effect.
  
!      To verify full coverage during `-fcompare-debug' testing, set
!      `GCC_COMPARE_DEBUG' to say `-fcompare-debug-not-overridden', which
       GCC rejects as an invalid option in any actual compilation (rather
       than preprocessing, assembly or linking).  To get just a warning,
!      setting `GCC_COMPARE_DEBUG' to `-w%n-fcompare-debug not
!      overridden' will do.
  
! `-fcompare-debug-second'
       This option is implicitly passed to the compiler for the second
!      compilation requested by `-fcompare-debug', along with options to
       silence warnings, and omitting other options that would cause
       side-effect compiler outputs to files or to the standard output.
       Dump files and preserved temporary files are renamed so as to
!      contain the `.gk' additional extension during the second
       compilation, to avoid overwriting those generated by the first.
  
       When this option is passed to the compiler driver, it causes the
       _first_ compilation to be skipped, which makes it useful for little
       other than debugging the compiler proper.
  
! `-gtoggle'
       Turn off generation of debug info, if leaving out this option
       generates it, or turn it on at level 2 otherwise.  The position of
       this argument in the command line does not matter; it takes effect
!      after all other options are processed, and it does so only once,
!      no matter how many times it is given.  This is mainly intended to
!      be used with `-fcompare-debug'.
  
! `-fvar-tracking-assignments-toggle'
!      Toggle `-fvar-tracking-assignments', in the same way that
!      `-gtoggle' toggles `-g'.
  
! `-Q'
       Makes the compiler print out each function name as it is compiled,
       and print some statistics about each pass when it finishes.
  
! `-ftime-report'
!      Makes the compiler print some statistics about the time consumed
!      by each pass when it finishes.
  
! `-fira-verbose=N'
       Control the verbosity of the dump file for the integrated register
       allocator.  The default value is 5.  If the value N is greater or
       equal to 10, the dump output is sent to stderr using the same
       format as N minus 10.
  
! `-flto-report'
       Prints a report with internal details on the workings of the
!      link-time optimizer.  The contents of this report vary from
!      version to version.  It is meant to be useful to GCC developers
!      when processing object files in LTO mode (via `-flto').
  
       Disabled by default.
  
! `-flto-report-wpa'
!      Like `-flto-report', but only print for the WPA phase of Link Time
       Optimization.
  
! `-fmem-report'
       Makes the compiler print some statistics about permanent memory
       allocation when it finishes.
  
! `-fmem-report-wpa'
       Makes the compiler print some statistics about permanent memory
       allocation for the WPA phase only.
  
! `-fpre-ipa-mem-report'
! 
! `-fpost-ipa-mem-report'
       Makes the compiler print some statistics about permanent memory
       allocation before or after interprocedural optimization.
  
! `-fprofile-report'
       Makes the compiler print some statistics about consistency of the
       (estimated) profile and effect of individual passes.
  
! `-fstack-usage'
       Makes the compiler output stack usage information for the program,
       on a per-function basis.  The filename for the dump is made by
!      appending `.su' to the AUXNAME.  AUXNAME is generated from the
!      name of the output file, if explicitly specified and it is not an
       executable, otherwise it is the basename of the source file.  An
       entry is made up of three fields:
  
          * The name of the function.
- 
          * A number of bytes.
  
!         * One or more qualifiers: `static', `dynamic', `bounded'.
! 
!      The qualifier `static' means that the function manipulates the
       stack statically: a fixed number of bytes are allocated for the
       frame on function entry and released on function exit; no stack
       adjustments are otherwise made in the function.  The second field
       is this fixed number of bytes.
  
!      The qualifier `dynamic' means that the function manipulates the
       stack dynamically: in addition to the static allocation described
       above, stack adjustments are made in the body of the function, for
       example to push/pop arguments around function calls.  If the
!      qualifier `bounded' is also present, the amount of these
       adjustments is bounded at compile time and the second field is an
       upper bound of the total amount of stack used by the function.  If
       it is not present, the amount of these adjustments is not bounded
       at compile time and the second field only represents the bounded
       part.
  
! `-fstats'
       Emit statistics about front-end processing at the end of the
       compilation.  This option is supported only by the C++ front end,
!      and the information is generally only useful to the G++
!      development team.
  
! `-fdbg-cnt-list'
       Print the name and the counter upper bound for all debug counters.
  
! `-fdbg-cnt=COUNTER-VALUE-LIST'
       Set the internal debug counter upper bound.  COUNTER-VALUE-LIST is
       a comma-separated list of NAME:VALUE pairs which sets the upper
!      bound of each debug counter NAME to VALUE.  All debug counters
!      have the initial upper bound of `UINT_MAX'; thus `dbg_cnt' returns
!      true always unless the upper bound is set by this option.  For
!      example, with `-fdbg-cnt=dce:10,tail_call:0', `dbg_cnt(dce)'
!      returns true only for first 10 invocations.
  
! `-print-file-name=LIBRARY'
!      Print the full absolute name of the library file LIBRARY that
!      would be used when linking--and don't do anything else.  With this
       option, GCC does not compile or link anything; it just prints the
       file name.
  
! `-print-multi-directory'
       Print the directory name corresponding to the multilib selected by
       any other switches present in the command line.  This directory is
!      supposed to exist in `GCC_EXEC_PREFIX'.
  
! `-print-multi-lib'
       Print the mapping from multilib directory names to compiler
       switches that enable them.  The directory name is separated from
!      the switches by `;', and each switch starts with an `@' instead of
!      the `-', without spaces between multiple switches.  This is
       supposed to ease shell processing.
  
! `-print-multi-os-directory'
       Print the path to OS libraries for the selected multilib, relative
!      to some `lib' subdirectory.  If OS libraries are present in the
!      `lib' subdirectory and no multilibs are used, this is usually just
!      `.', if OS libraries are present in `libSUFFIX' sibling
!      directories this prints e.g. `../lib64', `../lib' or `../lib32',
!      or if OS libraries are present in `lib/SUBDIR' subdirectories it
!      prints e.g. `amd64', `sparcv9' or `ev6'.
  
! `-print-multiarch'
!      Print the path to OS libraries for the selected multiarch,
!      relative to some `lib' subdirectory.
  
! `-print-prog-name=PROGRAM'
!      Like `-print-file-name', but searches for a program such as `cpp'.
  
! `-print-libgcc-file-name'
!      Same as `-print-file-name=libgcc.a'.
  
!      This is useful when you use `-nostdlib' or `-nodefaultlibs' but
!      you do want to link with `libgcc.a'.  You can do:
  
            gcc -nostdlib FILES... `gcc -print-libgcc-file-name`
  
! `-print-search-dirs'
       Print the name of the configured installation directory and a list
!      of program and library directories `gcc' searches--and don't do
       anything else.
  
!      This is useful when `gcc' prints the error message `installation
       problem, cannot exec cpp0: No such file or directory'.  To resolve
!      this you either need to put `cpp0' and the other compiler
!      components where `gcc' expects to find them, or you can set the
!      environment variable `GCC_EXEC_PREFIX' to the directory where you
!      installed them.  Don't forget the trailing `/'.  *Note Environment
       Variables::.
  
! `-print-sysroot'
!      Print the target sysroot directory that is used during
!      compilation.  This is the target sysroot specified either at
!      configure time or using the `--sysroot' option, possibly with an
!      extra suffix that depends on compilation options.  If no target
!      sysroot is specified, the option prints nothing.
  
! `-print-sysroot-headers-suffix'
       Print the suffix added to the target sysroot when searching for
       headers, or give an error if the compiler is not configured with
       such a suffix--and don't do anything else.
  
! `-dumpmachine'
       Print the compiler's target machine (for example,
!      `i686-pc-linux-gnu')--and don't do anything else.
  
! `-dumpversion'
!      Print the compiler version (for example, `3.0')--and don't do
       anything else.
  
! `-dumpspecs'
       Print the compiler's built-in specs--and don't do anything else.
       (This is used when GCC itself is being built.)  *Note Spec Files::.
  
--- 12094,12322 ----
       one can later tell what file was being compiled, and with which
       options.
  
! '-fdump-final-insns[=FILE]'
       Dump the final internal representation (RTL) to FILE.  If the
!      optional argument is omitted (or if FILE is '.'), the name of the
!      dump file is determined by appending '.gkd' to the compilation
       output file name.
  
! '-fcompare-debug[=OPTS]'
       If no error occurs during compilation, run the compiler a second
!      time, adding OPTS and '-fcompare-debug-second' to the arguments
       passed to the second compilation.  Dump the final internal
       representation in both compilations, and print an error if they
       differ.
  
!      If the equal sign is omitted, the default '-gtoggle' is used.
  
!      The environment variable 'GCC_COMPARE_DEBUG', if defined, non-empty
!      and nonzero, implicitly enables '-fcompare-debug'.  If
!      'GCC_COMPARE_DEBUG' is defined to a string starting with a dash,
!      then it is used for OPTS, otherwise the default '-gtoggle' is used.
  
!      '-fcompare-debug=', with the equal sign but without OPTS, is
!      equivalent to '-fno-compare-debug', which disables the dumping of
       the final representation and the second compilation, preventing
!      even 'GCC_COMPARE_DEBUG' from taking effect.
  
!      To verify full coverage during '-fcompare-debug' testing, set
!      'GCC_COMPARE_DEBUG' to say '-fcompare-debug-not-overridden', which
       GCC rejects as an invalid option in any actual compilation (rather
       than preprocessing, assembly or linking).  To get just a warning,
!      setting 'GCC_COMPARE_DEBUG' to '-w%n-fcompare-debug not overridden'
!      will do.
  
! '-fcompare-debug-second'
       This option is implicitly passed to the compiler for the second
!      compilation requested by '-fcompare-debug', along with options to
       silence warnings, and omitting other options that would cause
       side-effect compiler outputs to files or to the standard output.
       Dump files and preserved temporary files are renamed so as to
!      contain the '.gk' additional extension during the second
       compilation, to avoid overwriting those generated by the first.
  
       When this option is passed to the compiler driver, it causes the
       _first_ compilation to be skipped, which makes it useful for little
       other than debugging the compiler proper.
  
! '-gtoggle'
       Turn off generation of debug info, if leaving out this option
       generates it, or turn it on at level 2 otherwise.  The position of
       this argument in the command line does not matter; it takes effect
!      after all other options are processed, and it does so only once, no
!      matter how many times it is given.  This is mainly intended to be
!      used with '-fcompare-debug'.
  
! '-fvar-tracking-assignments-toggle'
!      Toggle '-fvar-tracking-assignments', in the same way that
!      '-gtoggle' toggles '-g'.
  
! '-Q'
       Makes the compiler print out each function name as it is compiled,
       and print some statistics about each pass when it finishes.
  
! '-ftime-report'
!      Makes the compiler print some statistics about the time consumed by
!      each pass when it finishes.
  
! '-fira-verbose=N'
       Control the verbosity of the dump file for the integrated register
       allocator.  The default value is 5.  If the value N is greater or
       equal to 10, the dump output is sent to stderr using the same
       format as N minus 10.
  
! '-flto-report'
       Prints a report with internal details on the workings of the
!      link-time optimizer.  The contents of this report vary from version
!      to version.  It is meant to be useful to GCC developers when
!      processing object files in LTO mode (via '-flto').
  
       Disabled by default.
  
! '-flto-report-wpa'
!      Like '-flto-report', but only print for the WPA phase of Link Time
       Optimization.
  
! '-fmem-report'
       Makes the compiler print some statistics about permanent memory
       allocation when it finishes.
  
! '-fmem-report-wpa'
       Makes the compiler print some statistics about permanent memory
       allocation for the WPA phase only.
  
! '-fpre-ipa-mem-report'
! '-fpost-ipa-mem-report'
       Makes the compiler print some statistics about permanent memory
       allocation before or after interprocedural optimization.
  
! '-fprofile-report'
       Makes the compiler print some statistics about consistency of the
       (estimated) profile and effect of individual passes.
  
! '-fstack-usage'
       Makes the compiler output stack usage information for the program,
       on a per-function basis.  The filename for the dump is made by
!      appending '.su' to the AUXNAME.  AUXNAME is generated from the name
!      of the output file, if explicitly specified and it is not an
       executable, otherwise it is the basename of the source file.  An
       entry is made up of three fields:
  
          * The name of the function.
          * A number of bytes.
+         * One or more qualifiers: 'static', 'dynamic', 'bounded'.
  
!      The qualifier 'static' means that the function manipulates the
       stack statically: a fixed number of bytes are allocated for the
       frame on function entry and released on function exit; no stack
       adjustments are otherwise made in the function.  The second field
       is this fixed number of bytes.
  
!      The qualifier 'dynamic' means that the function manipulates the
       stack dynamically: in addition to the static allocation described
       above, stack adjustments are made in the body of the function, for
       example to push/pop arguments around function calls.  If the
!      qualifier 'bounded' is also present, the amount of these
       adjustments is bounded at compile time and the second field is an
       upper bound of the total amount of stack used by the function.  If
       it is not present, the amount of these adjustments is not bounded
       at compile time and the second field only represents the bounded
       part.
  
! '-fstats'
       Emit statistics about front-end processing at the end of the
       compilation.  This option is supported only by the C++ front end,
!      and the information is generally only useful to the G++ development
!      team.
  
! '-fdbg-cnt-list'
       Print the name and the counter upper bound for all debug counters.
  
! '-fdbg-cnt=COUNTER-VALUE-LIST'
       Set the internal debug counter upper bound.  COUNTER-VALUE-LIST is
       a comma-separated list of NAME:VALUE pairs which sets the upper
!      bound of each debug counter NAME to VALUE.  All debug counters have
!      the initial upper bound of 'UINT_MAX'; thus 'dbg_cnt' returns true
!      always unless the upper bound is set by this option.  For example,
!      with '-fdbg-cnt=dce:10,tail_call:0', 'dbg_cnt(dce)' returns true
!      only for first 10 invocations.
  
! '-print-file-name=LIBRARY'
!      Print the full absolute name of the library file LIBRARY that would
!      be used when linking--and don't do anything else.  With this
       option, GCC does not compile or link anything; it just prints the
       file name.
  
! '-print-multi-directory'
       Print the directory name corresponding to the multilib selected by
       any other switches present in the command line.  This directory is
!      supposed to exist in 'GCC_EXEC_PREFIX'.
  
! '-print-multi-lib'
       Print the mapping from multilib directory names to compiler
       switches that enable them.  The directory name is separated from
!      the switches by ';', and each switch starts with an '@' instead of
!      the '-', without spaces between multiple switches.  This is
       supposed to ease shell processing.
  
! '-print-multi-os-directory'
       Print the path to OS libraries for the selected multilib, relative
!      to some 'lib' subdirectory.  If OS libraries are present in the
!      'lib' subdirectory and no multilibs are used, this is usually just
!      '.', if OS libraries are present in 'libSUFFIX' sibling directories
!      this prints e.g. '../lib64', '../lib' or '../lib32', or if OS
!      libraries are present in 'lib/SUBDIR' subdirectories it prints e.g.
!      'amd64', 'sparcv9' or 'ev6'.
  
! '-print-multiarch'
!      Print the path to OS libraries for the selected multiarch, relative
!      to some 'lib' subdirectory.
  
! '-print-prog-name=PROGRAM'
!      Like '-print-file-name', but searches for a program such as 'cpp'.
  
! '-print-libgcc-file-name'
!      Same as '-print-file-name=libgcc.a'.
  
!      This is useful when you use '-nostdlib' or '-nodefaultlibs' but you
!      do want to link with 'libgcc.a'.  You can do:
  
            gcc -nostdlib FILES... `gcc -print-libgcc-file-name`
  
! '-print-search-dirs'
       Print the name of the configured installation directory and a list
!      of program and library directories 'gcc' searches--and don't do
       anything else.
  
!      This is useful when 'gcc' prints the error message 'installation
       problem, cannot exec cpp0: No such file or directory'.  To resolve
!      this you either need to put 'cpp0' and the other compiler
!      components where 'gcc' expects to find them, or you can set the
!      environment variable 'GCC_EXEC_PREFIX' to the directory where you
!      installed them.  Don't forget the trailing '/'.  *Note Environment
       Variables::.
  
! '-print-sysroot'
!      Print the target sysroot directory that is used during compilation.
!      This is the target sysroot specified either at configure time or
!      using the '--sysroot' option, possibly with an extra suffix that
!      depends on compilation options.  If no target sysroot is specified,
!      the option prints nothing.
  
! '-print-sysroot-headers-suffix'
       Print the suffix added to the target sysroot when searching for
       headers, or give an error if the compiler is not configured with
       such a suffix--and don't do anything else.
  
! '-dumpmachine'
       Print the compiler's target machine (for example,
!      'i686-pc-linux-gnu')--and don't do anything else.
  
! '-dumpversion'
!      Print the compiler version (for example, '3.0')--and don't do
       anything else.
  
! '-dumpspecs'
       Print the compiler's built-in specs--and don't do anything else.
       (This is used when GCC itself is being built.)  *Note Spec Files::.
  
*************** File: gcc.info,  Node: Submodel Options,
*** 12406,12412 ****
  Each target machine supported by GCC can have its own options--for
  example, to allow you to compile for a particular processor variant or
  ABI, or to control optimizations specific to that machine.  By
! convention, the names of machine-specific options start with `-m'.
  
   Some configurations of the compiler also support additional
  target-specific options, usually for compatibility with other compilers
--- 12329,12335 ----
  Each target machine supported by GCC can have its own options--for
  example, to allow you to compile for a particular processor variant or
  ABI, or to control optimizations specific to that machine.  By
! convention, the names of machine-specific options start with '-m'.
  
   Some configurations of the compiler also support additional
  target-specific options, usually for compatibility with other compilers
*************** File: gcc.info,  Node: AArch64 Options,
*** 12481,12692 ****
  
  These options are defined for AArch64 implementations:
  
! `-mabi=NAME'
!      Generate code for the specified data model.  Permissible values
!      are `ilp32' for SysV-like data model where int, long int and
!      pointer are 32-bit, and `lp64' for SysV-like data model where int
!      is 32-bit, but long int and pointer are 64-bit.
  
       The default depends on the specific target configuration.  Note
       that the LP64 and ILP32 ABIs are not link-compatible; you must
       compile your entire program with the same ABI, and link with a
       compatible set of libraries.
  
! `-mbig-endian'
       Generate big-endian code.  This is the default when GCC is
!      configured for an `aarch64_be-*-*' target.
  
! `-mgeneral-regs-only'
       Generate code which uses only the general-purpose registers.  This
       will prevent the compiler from using floating-point and Advanced
       SIMD registers but will not impose any restrictions on the
       assembler.
  
! `-mlittle-endian'
       Generate little-endian code.  This is the default when GCC is
!      configured for an `aarch64-*-*' but not an `aarch64_be-*-*' target.
  
! `-mcmodel=tiny'
       Generate code for the tiny code model.  The program and its
       statically defined symbols must be within 1GB of each other.
       Pointers are 64 bits.  Programs can be statically or dynamically
       linked.  This model is not fully implemented and mostly treated as
!      `small'.
  
! `-mcmodel=small'
       Generate code for the small code model.  The program and its
       statically defined symbols must be within 4GB of each other.
       Pointers are 64 bits.  Programs can be statically or dynamically
       linked.  This is the default code model.
  
! `-mcmodel=large'
       Generate code for the large code model.  This makes no assumptions
       about addresses and sizes of sections.  Pointers are 64 bits.
       Programs can be statically linked only.
  
! `-mstrict-align'
       Do not assume that unaligned memory references are handled by the
       system.
  
! `-momit-leaf-frame-pointer'
! `-mno-omit-leaf-frame-pointer'
       Omit or keep the frame pointer in leaf functions.  The former
       behavior is the default.
  
! `-mtls-dialect=desc'
       Use TLS descriptors as the thread-local storage mechanism for
       dynamic accesses of TLS variables.  This is the default.
  
! `-mtls-dialect=traditional'
       Use traditional TLS as the thread-local storage mechanism for
       dynamic accesses of TLS variables.
  
! `-mtls-size=SIZE'
       Specify bit size of immediate TLS offsets.  Valid values are 12,
       24, 32, 48.  This option depends on binutils higher than 2.25.
  
! `-mfix-cortex-a53-835769'
! `-mno-fix-cortex-a53-835769'
       Enable or disable the workaround for the ARM Cortex-A53 erratum
       number 835769.  This involves inserting a NOP instruction between
       memory instructions and 64-bit integer multiply-accumulate
       instructions.
  
! `-mfix-cortex-a53-843419'
! `-mno-fix-cortex-a53-843419'
       Enable or disable the workaround for the ARM Cortex-A53 erratum
       number 843419.  This erratum workaround is made at link time and
       this will only pass the corresponding flag to the linker.
  
! `-mlow-precision-recip-sqrt'
! 
! `-mno-low-precision-recip-sqrt'
!      When calculating the reciprocal square root approximation, uses
!      one less step than otherwise, thus reducing latency and precision.
!      This is only relevant if `-ffast-math' enables the reciprocal
       square root approximation, which in turn depends on the target
       processor.
  
! `-march=NAME'
       Specify the name of the target architecture and, optionally, one or
       more feature modifiers.  This option has the form
!      `-march=ARCH{+[no]FEATURE}*'.
  
!      The permissible values for ARCH are `armv8-a', `armv8.1-a' or
       NATIVE.
  
!      The value `armv8.1-a' implies `armv8-a' and enables compiler
       support for the ARMv8.1 architecture extension.  In particular, it
!      enables the `+crc' and `+lse' features.
  
!      The value `native' is available on native AArch64 GNU/Linux and
       causes the compiler to pick the architecture of the host system.
       This option has no effect if the compiler is unable to recognize
       the architecture of the host system,
  
!      The permissible values for FEATURE are listed in the sub-section
!      on *note `-march' and `-mcpu' Feature Modifiers:
       aarch64-feature-modifiers.  Where conflicting feature modifiers are
       specified, the right-most feature is used.
  
       GCC uses NAME to determine what kind of instructions it can emit
!      when generating assembly code.  If `-march' is specified without
!      either of `-mtune' or `-mcpu' also being specified, the code is
       tuned to perform well across a range of target processors
       implementing the target architecture.
  
! `-mtune=NAME'
       Specify the name of the target processor for which GCC should tune
       the performance of the code.  Permissible values for this option
!      are: `generic', `cortex-a35', `cortex-a53', `cortex-a57',
!      `cortex-a72', `exynos-m1', `qdf24xx', `thunderx', `xgene1'.
  
       Additionally, this option can specify that GCC should tune the
       performance of the code for a big.LITTLE system.  Permissible
!      values for this option are: `cortex-a57.cortex-a53',
!      `cortex-a72.cortex-a53'.
  
!      Additionally on native AArch64 GNU/Linux systems the value
!      `native' is available.  This option causes the compiler to pick
!      the architecture of and tune the performance of the code for the
       processor of the host system.  This option has no effect if the
       compiler is unable to recognize the architecture of the host
       system.
  
!      Where none of `-mtune=', `-mcpu=' or `-march=' are specified, the
       code is tuned to perform well across a range of target processors.
  
       This option cannot be suffixed by feature modifiers.
  
! `-mcpu=NAME'
       Specify the name of the target processor, optionally suffixed by
       one or more feature modifiers.  This option has the form
!      `-mcpu=CPU{+[no]FEATURE}*', where the permissible values for CPU
!      are the same as those available for `-mtune'.  The permissible
       values for FEATURE are documented in the sub-section on *note
!      `-march' and `-mcpu' Feature Modifiers: aarch64-feature-modifiers.
       Where conflicting feature modifiers are specified, the right-most
       feature is used.
  
!      Additionally on native AArch64 GNU/Linux systems the value
!      `native' is available.  This option causes the compiler to tune
!      the performance of the code for the processor of the host system.
!      This option has no effect if the compiler is unable to recognize
!      the architecture of the host system.
  
       GCC uses NAME to determine what kind of instructions it can emit
!      when generating assembly code (as if by `-march') and to determine
       the target processor for which to tune for performance (as if by
!      `-mtune').  Where this option is used in conjunction with `-march'
!      or `-mtune', those options take precedence over the appropriate
       part of this option.
  
! `-moverride=STRING'
       Override tuning decisions made by the back-end in response to a
!      `-mtune=' switch.  The syntax, semantics, and accepted values for
       STRING in this option are not guaranteed to be consistent across
       releases.
  
       This option is only intended to be useful when developing GCC.
  
! `-mpc-relative-literal-loads'
!      Enable PC relative literal loads. If this option is used, literal
       pools are assumed to have a range of up to 1MiB and an appropriate
!      instruction sequence is used. This option has no impact when used
!      with `-mcmodel=tiny'.
! 
  
! 3.18.1.1 `-march' and `-mcpu' Feature Modifiers
  ...............................................
  
! Feature modifiers used with `-march' and `-mcpu' can be any of the
! following and their inverses `noFEATURE':
  
! `crc'
       Enable CRC extension.  This is on by default for
!      `-march=armv8.1-a'.
! 
! `crypto'
       Enable Crypto extension.  This also enables Advanced SIMD and
       floating-point instructions.
! 
! `fp'
       Enable floating-point instructions.  This is on by default for all
!      possible values for options `-march' and `-mcpu'.
! 
! `simd'
       Enable Advanced SIMD instructions.  This also enables
       floating-point instructions.  This is on by default for all
!      possible values for options `-march' and `-mcpu'.
! 
! `lse'
       Enable Large System Extension instructions.  This is on by default
!      for `-march=armv8.1-a'.
! 
  
!  That is, `crypto' implies `simd' implies `fp'.  Conversely, `nofp' (or
! equivalently, `-mgeneral-regs-only') implies `nosimd' implies
! `nocrypto'.
  
  
  File: gcc.info,  Node: Adapteva Epiphany Options,  Next: ARC Options,  Prev: AArch64 Options,  Up: Submodel Options
--- 12404,12608 ----
  
  These options are defined for AArch64 implementations:
  
! '-mabi=NAME'
!      Generate code for the specified data model.  Permissible values are
!      'ilp32' for SysV-like data model where int, long int and pointer
!      are 32-bit, and 'lp64' for SysV-like data model where int is
!      32-bit, but long int and pointer are 64-bit.
  
       The default depends on the specific target configuration.  Note
       that the LP64 and ILP32 ABIs are not link-compatible; you must
       compile your entire program with the same ABI, and link with a
       compatible set of libraries.
  
! '-mbig-endian'
       Generate big-endian code.  This is the default when GCC is
!      configured for an 'aarch64_be-*-*' target.
  
! '-mgeneral-regs-only'
       Generate code which uses only the general-purpose registers.  This
       will prevent the compiler from using floating-point and Advanced
       SIMD registers but will not impose any restrictions on the
       assembler.
  
! '-mlittle-endian'
       Generate little-endian code.  This is the default when GCC is
!      configured for an 'aarch64-*-*' but not an 'aarch64_be-*-*' target.
  
! '-mcmodel=tiny'
       Generate code for the tiny code model.  The program and its
       statically defined symbols must be within 1GB of each other.
       Pointers are 64 bits.  Programs can be statically or dynamically
       linked.  This model is not fully implemented and mostly treated as
!      'small'.
  
! '-mcmodel=small'
       Generate code for the small code model.  The program and its
       statically defined symbols must be within 4GB of each other.
       Pointers are 64 bits.  Programs can be statically or dynamically
       linked.  This is the default code model.
  
! '-mcmodel=large'
       Generate code for the large code model.  This makes no assumptions
       about addresses and sizes of sections.  Pointers are 64 bits.
       Programs can be statically linked only.
  
! '-mstrict-align'
       Do not assume that unaligned memory references are handled by the
       system.
  
! '-momit-leaf-frame-pointer'
! '-mno-omit-leaf-frame-pointer'
       Omit or keep the frame pointer in leaf functions.  The former
       behavior is the default.
  
! '-mtls-dialect=desc'
       Use TLS descriptors as the thread-local storage mechanism for
       dynamic accesses of TLS variables.  This is the default.
  
! '-mtls-dialect=traditional'
       Use traditional TLS as the thread-local storage mechanism for
       dynamic accesses of TLS variables.
  
! '-mtls-size=SIZE'
       Specify bit size of immediate TLS offsets.  Valid values are 12,
       24, 32, 48.  This option depends on binutils higher than 2.25.
  
! '-mfix-cortex-a53-835769'
! '-mno-fix-cortex-a53-835769'
       Enable or disable the workaround for the ARM Cortex-A53 erratum
       number 835769.  This involves inserting a NOP instruction between
       memory instructions and 64-bit integer multiply-accumulate
       instructions.
  
! '-mfix-cortex-a53-843419'
! '-mno-fix-cortex-a53-843419'
       Enable or disable the workaround for the ARM Cortex-A53 erratum
       number 843419.  This erratum workaround is made at link time and
       this will only pass the corresponding flag to the linker.
  
! '-mlow-precision-recip-sqrt'
! '-mno-low-precision-recip-sqrt'
!      When calculating the reciprocal square root approximation, uses one
!      less step than otherwise, thus reducing latency and precision.
!      This is only relevant if '-ffast-math' enables the reciprocal
       square root approximation, which in turn depends on the target
       processor.
  
! '-march=NAME'
       Specify the name of the target architecture and, optionally, one or
       more feature modifiers.  This option has the form
!      '-march=ARCH{+[no]FEATURE}*'.
  
!      The permissible values for ARCH are 'armv8-a', 'armv8.1-a' or
       NATIVE.
  
!      The value 'armv8.1-a' implies 'armv8-a' and enables compiler
       support for the ARMv8.1 architecture extension.  In particular, it
!      enables the '+crc' and '+lse' features.
  
!      The value 'native' is available on native AArch64 GNU/Linux and
       causes the compiler to pick the architecture of the host system.
       This option has no effect if the compiler is unable to recognize
       the architecture of the host system,
  
!      The permissible values for FEATURE are listed in the sub-section on
!      *note '-march' and '-mcpu' Feature Modifiers:
       aarch64-feature-modifiers.  Where conflicting feature modifiers are
       specified, the right-most feature is used.
  
       GCC uses NAME to determine what kind of instructions it can emit
!      when generating assembly code.  If '-march' is specified without
!      either of '-mtune' or '-mcpu' also being specified, the code is
       tuned to perform well across a range of target processors
       implementing the target architecture.
  
! '-mtune=NAME'
       Specify the name of the target processor for which GCC should tune
       the performance of the code.  Permissible values for this option
!      are: 'generic', 'cortex-a35', 'cortex-a53', 'cortex-a57',
!      'cortex-a72', 'exynos-m1', 'qdf24xx', 'thunderx', 'xgene1'.
  
       Additionally, this option can specify that GCC should tune the
       performance of the code for a big.LITTLE system.  Permissible
!      values for this option are: 'cortex-a57.cortex-a53',
!      'cortex-a72.cortex-a53'.
  
!      Additionally on native AArch64 GNU/Linux systems the value 'native'
!      is available.  This option causes the compiler to pick the
!      architecture of and tune the performance of the code for the
       processor of the host system.  This option has no effect if the
       compiler is unable to recognize the architecture of the host
       system.
  
!      Where none of '-mtune=', '-mcpu=' or '-march=' are specified, the
       code is tuned to perform well across a range of target processors.
  
       This option cannot be suffixed by feature modifiers.
  
! '-mcpu=NAME'
       Specify the name of the target processor, optionally suffixed by
       one or more feature modifiers.  This option has the form
!      '-mcpu=CPU{+[no]FEATURE}*', where the permissible values for CPU
!      are the same as those available for '-mtune'.  The permissible
       values for FEATURE are documented in the sub-section on *note
!      '-march' and '-mcpu' Feature Modifiers: aarch64-feature-modifiers.
       Where conflicting feature modifiers are specified, the right-most
       feature is used.
  
!      Additionally on native AArch64 GNU/Linux systems the value 'native'
!      is available.  This option causes the compiler to tune the
!      performance of the code for the processor of the host system.  This
!      option has no effect if the compiler is unable to recognize the
!      architecture of the host system.
  
       GCC uses NAME to determine what kind of instructions it can emit
!      when generating assembly code (as if by '-march') and to determine
       the target processor for which to tune for performance (as if by
!      '-mtune').  Where this option is used in conjunction with '-march'
!      or '-mtune', those options take precedence over the appropriate
       part of this option.
  
! '-moverride=STRING'
       Override tuning decisions made by the back-end in response to a
!      '-mtune=' switch.  The syntax, semantics, and accepted values for
       STRING in this option are not guaranteed to be consistent across
       releases.
  
       This option is only intended to be useful when developing GCC.
  
! '-mpc-relative-literal-loads'
!      Enable PC relative literal loads.  If this option is used, literal
       pools are assumed to have a range of up to 1MiB and an appropriate
!      instruction sequence is used.  This option has no impact when used
!      with '-mcmodel=tiny'.
  
! 3.18.1.1 '-march' and '-mcpu' Feature Modifiers
  ...............................................
  
! Feature modifiers used with '-march' and '-mcpu' can be any of the
! following and their inverses 'noFEATURE':
  
! 'crc'
       Enable CRC extension.  This is on by default for
!      '-march=armv8.1-a'.
! 'crypto'
       Enable Crypto extension.  This also enables Advanced SIMD and
       floating-point instructions.
! 'fp'
       Enable floating-point instructions.  This is on by default for all
!      possible values for options '-march' and '-mcpu'.
! 'simd'
       Enable Advanced SIMD instructions.  This also enables
       floating-point instructions.  This is on by default for all
!      possible values for options '-march' and '-mcpu'.
! 'lse'
       Enable Large System Extension instructions.  This is on by default
!      for '-march=armv8.1-a'.
  
!  That is, 'crypto' implies 'simd' implies 'fp'.  Conversely, 'nofp' (or
! equivalently, '-mgeneral-regs-only') implies 'nosimd' implies
! 'nocrypto'.
  
  
  File: gcc.info,  Node: Adapteva Epiphany Options,  Next: ARC Options,  Prev: AArch64 Options,  Up: Submodel Options
*************** File: gcc.info,  Node: Adapteva Epiphany
*** 12694,12734 ****
  3.18.2 Adapteva Epiphany Options
  --------------------------------
  
! These `-m' options are defined for Adapteva Epiphany:
  
! `-mhalf-reg-file'
!      Don't allocate any register in the range `r32'...`r63'.  That
       allows code to run on hardware variants that lack these registers.
  
! `-mprefer-short-insn-regs'
       Preferentially allocate registers that allow short instruction
       generation.  This can result in increased instruction count, so
       this may either reduce or increase overall code size.
  
! `-mbranch-cost=NUM'
       Set the cost of branches to roughly NUM "simple" instructions.
       This cost is only a heuristic and is not guaranteed to produce
       consistent results across releases.
  
! `-mcmove'
       Enable the generation of conditional moves.
  
! `-mnops=NUM'
       Emit NUM NOPs before every other generated instruction.
  
! `-mno-soft-cmpsf'
!      For single-precision floating-point comparisons, emit an `fsub'
       instruction and test the flags.  This is faster than a software
       comparison, but can get incorrect results in the presence of NaNs,
       or when two different small numbers are compared such that their
!      difference is calculated as zero.  The default is `-msoft-cmpsf',
       which uses slower, but IEEE-compliant, software comparisons.
  
! `-mstack-offset=NUM'
       Set the offset between the top of the stack and the stack pointer.
       E.g., a value of 8 means that the eight bytes in the range
!      `sp+0...sp+7' can be used by leaf functions without stack
!      allocation.  Values other than `8' or `16' are untested and
       unlikely to work.  Note also that this option changes the ABI;
       compiling a program with a different stack offset than the
       libraries have been compiled with generally does not work.  This
--- 12610,12650 ----
  3.18.2 Adapteva Epiphany Options
  --------------------------------
  
! These '-m' options are defined for Adapteva Epiphany:
  
! '-mhalf-reg-file'
!      Don't allocate any register in the range 'r32'...'r63'.  That
       allows code to run on hardware variants that lack these registers.
  
! '-mprefer-short-insn-regs'
       Preferentially allocate registers that allow short instruction
       generation.  This can result in increased instruction count, so
       this may either reduce or increase overall code size.
  
! '-mbranch-cost=NUM'
       Set the cost of branches to roughly NUM "simple" instructions.
       This cost is only a heuristic and is not guaranteed to produce
       consistent results across releases.
  
! '-mcmove'
       Enable the generation of conditional moves.
  
! '-mnops=NUM'
       Emit NUM NOPs before every other generated instruction.
  
! '-mno-soft-cmpsf'
!      For single-precision floating-point comparisons, emit an 'fsub'
       instruction and test the flags.  This is faster than a software
       comparison, but can get incorrect results in the presence of NaNs,
       or when two different small numbers are compared such that their
!      difference is calculated as zero.  The default is '-msoft-cmpsf',
       which uses slower, but IEEE-compliant, software comparisons.
  
! '-mstack-offset=NUM'
       Set the offset between the top of the stack and the stack pointer.
       E.g., a value of 8 means that the eight bytes in the range
!      'sp+0...sp+7' can be used by leaf functions without stack
!      allocation.  Values other than '8' or '16' are untested and
       unlikely to work.  Note also that this option changes the ABI;
       compiling a program with a different stack offset than the
       libraries have been compiled with generally does not work.  This
*************** These `-m' options are defined for Adapt
*** 12736,12831 ****
       offset would give you better code, but to actually use a different
       stack offset to build working programs, it is recommended to
       configure the toolchain with the appropriate
!      `--with-stack-offset=NUM' option.
  
! `-mno-round-nearest'
       Make the scheduler assume that the rounding mode has been set to
!      truncating.  The default is `-mround-nearest'.
  
! `-mlong-calls'
       If not otherwise specified by an attribute, assume all calls might
!      be beyond the offset range of the `b' / `bl' instructions, and
       therefore load the function address into a register before
       performing a (otherwise direct) call.  This is the default.
  
! `-mshort-calls'
!      If not otherwise specified by an attribute, assume all direct
!      calls are in the range of the `b' / `bl' instructions, so use
!      these instructions for direct calls.  The default is
!      `-mlong-calls'.
  
! `-msmall16'
       Assume addresses can be loaded as 16-bit unsigned values.  This
!      does not apply to function addresses for which `-mlong-calls'
       semantics are in effect.
  
! `-mfp-mode=MODE'
       Set the prevailing mode of the floating-point unit.  This
!      determines the floating-point mode that is provided and expected
!      at function call and return time.  Making this mode match the mode
!      you predominantly need at function start can make your programs
!      smaller and faster by avoiding unnecessary mode switches.
  
       MODE can be set to one the following values:
  
!     `caller'
            Any mode at function entry is valid, and retained or restored
            when the function returns, and when it calls other functions.
            This mode is useful for compiling libraries or other
!           compilation units you might want to incorporate into
!           different programs with different prevailing FPU modes, and
!           the convenience of being able to use a single object file
            outweighs the size and speed overhead for any extra mode
            switching that might be needed, compared with what would be
            needed with a more specific choice of prevailing FPU mode.
  
!     `truncate'
            This is the mode used for floating-point calculations with
            truncating (i.e. round towards zero) rounding mode.  That
            includes conversion from floating point to integer.
  
!     `round-nearest'
            This is the mode used for floating-point calculations with
            round-to-nearest-or-even rounding mode.
  
!     `int'
            This is the mode used to perform integer calculations in the
!           FPU, e.g.  integer multiply, or integer
            multiply-and-accumulate.
  
!      The default is `-mfp-mode=caller'
  
! `-mnosplit-lohi'
! `-mno-postinc'
! `-mno-postmodify'
       Code generation tweaks that disable, respectively, splitting of
       32-bit loads, generation of post-increment addresses, and
       generation of post-modify addresses.  The defaults are
!      `msplit-lohi', `-mpost-inc', and `-mpost-modify'.
  
! `-mnovect-double'
       Change the preferred SIMD mode to SImode.  The default is
!      `-mvect-double', which uses DImode as preferred SIMD mode.
  
! `-max-vect-align=NUM'
       The maximum alignment for SIMD vector mode types.  NUM may be 4 or
!      8.  The default is 8.  Note that this is an ABI change, even
!      though many library function interfaces are unaffected if they
!      don't use SIMD vector modes in places that affect size and/or
!      alignment of relevant types.
  
! `-msplit-vecmove-early'
!      Split vector moves into single word moves before reload.  In
!      theory this can give better register allocation, but so far the
!      reverse seems to be generally the case.
  
! `-m1reg-REG'
       Specify a register to hold the constant -1, which makes loading
       small negative constants and certain bitmasks faster.  Allowable
!      values for REG are `r43' and `r63', which specify use of that
!      register as a fixed register, and `none', which means that no
!      register is used for this purpose.  The default is `-m1reg-none'.
! 
  
  
  File: gcc.info,  Node: ARC Options,  Next: ARM Options,  Prev: Adapteva Epiphany Options,  Up: Submodel Options
--- 12652,12745 ----
       offset would give you better code, but to actually use a different
       stack offset to build working programs, it is recommended to
       configure the toolchain with the appropriate
!      '--with-stack-offset=NUM' option.
  
! '-mno-round-nearest'
       Make the scheduler assume that the rounding mode has been set to
!      truncating.  The default is '-mround-nearest'.
  
! '-mlong-calls'
       If not otherwise specified by an attribute, assume all calls might
!      be beyond the offset range of the 'b' / 'bl' instructions, and
       therefore load the function address into a register before
       performing a (otherwise direct) call.  This is the default.
  
! '-mshort-calls'
!      If not otherwise specified by an attribute, assume all direct calls
!      are in the range of the 'b' / 'bl' instructions, so use these
!      instructions for direct calls.  The default is '-mlong-calls'.
  
! '-msmall16'
       Assume addresses can be loaded as 16-bit unsigned values.  This
!      does not apply to function addresses for which '-mlong-calls'
       semantics are in effect.
  
! '-mfp-mode=MODE'
       Set the prevailing mode of the floating-point unit.  This
!      determines the floating-point mode that is provided and expected at
!      function call and return time.  Making this mode match the mode you
!      predominantly need at function start can make your programs smaller
!      and faster by avoiding unnecessary mode switches.
  
       MODE can be set to one the following values:
  
!      'caller'
            Any mode at function entry is valid, and retained or restored
            when the function returns, and when it calls other functions.
            This mode is useful for compiling libraries or other
!           compilation units you might want to incorporate into different
!           programs with different prevailing FPU modes, and the
!           convenience of being able to use a single object file
            outweighs the size and speed overhead for any extra mode
            switching that might be needed, compared with what would be
            needed with a more specific choice of prevailing FPU mode.
  
!      'truncate'
            This is the mode used for floating-point calculations with
            truncating (i.e. round towards zero) rounding mode.  That
            includes conversion from floating point to integer.
  
!      'round-nearest'
            This is the mode used for floating-point calculations with
            round-to-nearest-or-even rounding mode.
  
!      'int'
            This is the mode used to perform integer calculations in the
!           FPU, e.g. integer multiply, or integer
            multiply-and-accumulate.
  
!      The default is '-mfp-mode=caller'
  
! '-mnosplit-lohi'
! '-mno-postinc'
! '-mno-postmodify'
       Code generation tweaks that disable, respectively, splitting of
       32-bit loads, generation of post-increment addresses, and
       generation of post-modify addresses.  The defaults are
!      'msplit-lohi', '-mpost-inc', and '-mpost-modify'.
  
! '-mnovect-double'
       Change the preferred SIMD mode to SImode.  The default is
!      '-mvect-double', which uses DImode as preferred SIMD mode.
  
! '-max-vect-align=NUM'
       The maximum alignment for SIMD vector mode types.  NUM may be 4 or
!      8.  The default is 8.  Note that this is an ABI change, even though
!      many library function interfaces are unaffected if they don't use
!      SIMD vector modes in places that affect size and/or alignment of
!      relevant types.
  
! '-msplit-vecmove-early'
!      Split vector moves into single word moves before reload.  In theory
!      this can give better register allocation, but so far the reverse
!      seems to be generally the case.
  
! '-m1reg-REG'
       Specify a register to hold the constant -1, which makes loading
       small negative constants and certain bitmasks faster.  Allowable
!      values for REG are 'r43' and 'r63', which specify use of that
!      register as a fixed register, and 'none', which means that no
!      register is used for this purpose.  The default is '-m1reg-none'.
  
  
  File: gcc.info,  Node: ARC Options,  Next: ARM Options,  Prev: Adapteva Epiphany Options,  Up: Submodel Options
*************** File: gcc.info,  Node: ARC Options,  Nex
*** 12833,13222 ****
  3.18.3 ARC Options
  ------------------
  
! The following options control the architecture variant for which code
! is being compiled:
  
! `-mbarrel-shifter'
       Generate instructions supported by barrel shifter.  This is the
!      default unless `-mcpu=ARC601' or `-mcpu=ARCEM' is in effect.
  
! `-mcpu=CPU'
       Set architecture type, register usage, and instruction scheduling
       parameters for CPU.  There are also shortcut alias options
       available for backward compatibility and convenience.  Supported
       values for CPU are
  
!     `ARC600'
! 
!     `arc600'
!           Compile for ARC600.  Aliases: `-mA6', `-mARC600'.
! 
!     `ARC601'
! 
!     `arc601'
!           Compile for ARC601.  Alias: `-mARC601'.
! 
!     `ARC700'
  
!     `arc700'
!           Compile for ARC700.  Aliases: `-mA7', `-mARC700'.  This is
!           the default when configured with `--with-cpu=arc700'.
  
!     `ARCEM'
  
!     `arcem'
            Compile for ARC EM.
  
!     `ARCHS'
! 
!     `archs'
            Compile for ARC HS.
  
! `-mdpfp'
! `-mdpfp-compact'
       FPX: Generate Double Precision FPX instructions, tuned for the
       compact implementation.
  
! `-mdpfp-fast'
       FPX: Generate Double Precision FPX instructions, tuned for the fast
       implementation.
  
! `-mno-dpfp-lrsr'
       Disable LR and SR instructions from using FPX extension aux
       registers.
  
! `-mea'
!      Generate Extended arithmetic instructions.  Currently only
!      `divaw', `adds', `subs', and `sat16' are supported.  This is
!      always enabled for `-mcpu=ARC700'.
  
! `-mno-mpy'
       Do not generate mpy instructions for ARC700.
  
! `-mmul32x16'
       Generate 32x16 bit multiply and mac instructions.
  
! `-mmul64'
       Generate mul64 and mulu64 instructions.  Only valid for
!      `-mcpu=ARC600'.
  
! `-mnorm'
!      Generate norm instruction.  This is the default if `-mcpu=ARC700'
       is in effect.
  
! `-mspfp'
! `-mspfp-compact'
       FPX: Generate Single Precision FPX instructions, tuned for the
       compact implementation.
  
! `-mspfp-fast'
       FPX: Generate Single Precision FPX instructions, tuned for the fast
       implementation.
  
! `-msimd'
       Enable generation of ARC SIMD instructions via target-specific
!      builtins.  Only valid for `-mcpu=ARC700'.
  
! `-msoft-float'
       This option ignored; it is provided for compatibility purposes
!      only.  Software floating point code is emitted by default, and
!      this default can overridden by FPX options; `mspfp',
!      `mspfp-compact', or `mspfp-fast' for single precision, and `mdpfp',
!      `mdpfp-compact', or `mdpfp-fast' for double precision.
  
! `-mswap'
       Generate swap instructions.
  
! `-matomic'
       This enables Locked Load/Store Conditional extension to implement
       atomic memopry built-in functions.  Not available for ARC 6xx or
       ARC EM cores.
  
! `-mdiv-rem'
       Enable DIV/REM instructions for ARCv2 cores.
  
! `-mcode-density'
       Enable code density instructions for ARC EM, default on for ARC HS.
  
! `-mll64'
       Enable double load/store operations for ARC HS cores.
  
! `-mmpy-option=MULTO'
!      Compile ARCv2 code with a multiplier design option.  `wlh1' is the
       default value.  The recognized values for MULTO are:
  
!     `0'
            No multiplier available.
  
!     `1'
            The multiply option is set to w: 16x16 multiplier, fully
            pipelined.  The following instructions are enabled: MPYW, and
            MPYUW.
  
!     `2'
            The multiply option is set to wlh1: 32x32 multiplier, fully
            pipelined (1 stage).  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!     `3'
            The multiply option is set to wlh2: 32x32 multiplier, fully
            pipelined (2 stages).  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!     `4'
            The multiply option is set to wlh3: Two 16x16 multiplier,
            blocking, sequential.  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!     `5'
            The multiply option is set to wlh4: One 16x16 multiplier,
            blocking, sequential.  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!     `6'
            The multiply option is set to wlh5: One 32x4 multiplier,
            blocking, sequential.  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
- 
       This option is only available for ARCv2 cores.
  
! `-mfpu=FPU'
       Enables specific floating-point hardware extension for ARCv2 core.
       Supported values for FPU are:
  
!     `fpus'
            Enables support for single precision floating point hardware
            extensions.
  
!     `fpud'
            Enables support for double precision floating point hardware
            extensions.  The single precision floating point extension is
            also enabled.  Not available for ARC EM.
  
!     `fpuda'
            Enables support for double precision floating point hardware
            extensions using double precision assist instructions.  The
            single precision floating point extension is also enabled.
            This option is only available for ARC EM.
  
!     `fpuda_div'
            Enables support for double precision floating point hardware
            extensions using double precision assist instructions, and
            simple precision square-root and divide hardware extensions.
!           The single precision floating point extension is also
!           enabled.  This option is only available for ARC EM.
  
!     `fpuda_fma'
            Enables support for double precision floating point hardware
            extensions using double precision assist instructions, and
            simple precision fused multiple and add hardware extension.
!           The single precision floating point extension is also
!           enabled.  This option is only available for ARC EM.
  
!     `fpuda_all'
            Enables support for double precision floating point hardware
!           extensions using double precision assist instructions, and
!           all simple precision hardware extensions.  The single
!           precision floating point extension is also enabled.  This
!           option is only available for ARC EM.
  
!     `fpus_div'
            Enables support for single precision floating point, and
            single precision square-root and divide hardware extensions.
  
!     `fpud_div'
            Enables support for double precision floating point, and
            double precision square-root and divide hardware extensions.
!           This option includes option `fpus_div'. Not available for ARC
            EM.
  
!     `fpus_fma'
            Enables support for single precision floating point, and
            single precision fused multiple and add hardware extensions.
  
!     `fpud_fma'
            Enables support for double precision floating point, and
            double precision fused multiple and add hardware extensions.
!           This option includes option `fpus_fma'.  Not available for
!           ARC EM.
  
!     `fpus_all'
            Enables support for all single precision floating point
            hardware extensions.
  
!     `fpud_all'
            Enables support for all single and double precision floating
            point hardware extensions.  Not available for ARC EM.
  
- 
- 
   The following options are passed through to the assembler, and also
  define preprocessor macro symbols.
  
! `-mdsp-packa'
       Passed down to the assembler to enable the DSP Pack A extensions.
!      Also sets the preprocessor symbol `__Xdsp_packa'.
  
! `-mdvbf'
       Passed down to the assembler to enable the dual viterbi butterfly
!      extension.  Also sets the preprocessor symbol `__Xdvbf'.
  
! `-mlock'
       Passed down to the assembler to enable the Locked Load/Store
       Conditional extension.  Also sets the preprocessor symbol
!      `__Xlock'.
  
! `-mmac-d16'
       Passed down to the assembler.  Also sets the preprocessor symbol
!      `__Xxmac_d16'.
  
! `-mmac-24'
       Passed down to the assembler.  Also sets the preprocessor symbol
!      `__Xxmac_24'.
  
! `-mrtsc'
       Passed down to the assembler to enable the 64-bit Time-Stamp
       Counter extension instruction.  Also sets the preprocessor symbol
!      `__Xrtsc'.
  
! `-mswape'
       Passed down to the assembler to enable the swap byte ordering
       extension instruction.  Also sets the preprocessor symbol
!      `__Xswape'.
  
! `-mtelephony'
       Passed down to the assembler to enable dual and single operand
       instructions for telephony.  Also sets the preprocessor symbol
!      `__Xtelephony'.
  
! `-mxy'
       Passed down to the assembler to enable the XY Memory extension.
!      Also sets the preprocessor symbol `__Xxy'.
! 
  
   The following options control how the assembly code is annotated:
  
! `-misize'
       Annotate assembler instructions with estimated addresses.
  
! `-mannotate-align'
       Explain what alignment considerations lead to the decision to make
       an instruction short or long.
  
- 
   The following options are passed through to the linker:
  
! `-marclinux'
!      Passed through to the linker, to specify use of the `arclinux'
       emulation.  This option is enabled by default in tool chains built
!      for `arc-linux-uclibc' and `arceb-linux-uclibc' targets when
       profiling is not requested.
  
! `-marclinux_prof'
!      Passed through to the linker, to specify use of the
!      `arclinux_prof' emulation.  This option is enabled by default in
!      tool chains built for `arc-linux-uclibc' and `arceb-linux-uclibc'
!      targets when profiling is requested.
! 
  
   The following options control the semantics of generated code:
  
! `-mlong-calls'
       Generate call insns as register indirect calls, thus providing
       access to the full 32-bit address range.
  
! `-mmedium-calls'
       Don't use less than 25 bit addressing range for calls, which is the
       offset available for an unconditional branch-and-link instruction.
!      Conditional execution of function calls is suppressed, to allow
!      use of the 25-bit range, rather than the 21-bit range with
!      conditional branch-and-link.  This is the default for tool chains
!      built for `arc-linux-uclibc' and `arceb-linux-uclibc' targets.
  
! `-mno-sdata'
       Do not generate sdata references.  This is the default for tool
!      chains built for `arc-linux-uclibc' and `arceb-linux-uclibc'
       targets.
  
! `-mucb-mcount'
!      Instrument with mcount calls as used in UCB code.  I.e. do the
       counting in the callee, not the caller.  By default ARC
       instrumentation counts in the caller.
  
! `-mvolatile-cache'
       Use ordinarily cached memory accesses for volatile references.
       This is the default.
  
! `-mno-volatile-cache'
       Enable cache bypass for volatile references.
  
- 
   The following options fine tune code generation:
! `-malign-call'
       Do alignment optimizations for call instructions.
  
! `-mauto-modify-reg'
       Enable the use of pre/post modify with register displacement.
  
! `-mbbit-peephole'
       Enable bbit peephole2.
  
! `-mno-brcc'
!      This option disables a target-specific pass in `arc_reorg' to
!      generate `BRcc' instructions.  It has no effect on `BRcc'
       generation driven by the combiner pass.
  
! `-mcase-vector-pcrel'
       Use pc-relative switch case tables - this enables case table
!      shortening.  This is the default for `-Os'.
  
! `-mcompact-casesi'
!      Enable compact casesi pattern.  This is the default for `-Os'.
  
! `-mno-cond-exec'
       Disable ARCompact specific pass to generate conditional execution
       instructions.  Due to delay slot scheduling and interactions
       between operand numbers, literal sizes, instruction lengths, and
       the support for conditional execution, the target-independent pass
!      to generate conditional execution is often lacking, so the ARC
!      port has kept a special pass around that tries to find more
!      conditional execution generating opportunities after register
!      allocation, branch shortening, and delay slot scheduling have been
!      done.  This pass generally, but not always, improves performance
!      and code size, at the cost of extra compilation time, which is why
!      there is an option to switch it off.  If you have a problem with
!      call instructions exceeding their allowable offset range because
!      they are conditionalized, you should consider using
!      `-mmedium-calls' instead.
  
! `-mearly-cbranchsi'
       Enable pre-reload use of the cbranchsi pattern.
  
! `-mexpand-adddi'
!      Expand `adddi3' and `subdi3' at rtl generation time into `add.f',
!      `adc' etc.
  
! `-mindexed-loads'
       Enable the use of indexed loads.  This can be problematic because
       some optimizers then assume that indexed stores exist, which is not
       the case.
  
       Enable Local Register Allocation.  This is still experimental for
       ARC, so by default the compiler uses standard reload (i.e.
!      `-mno-lra').
  
! `-mlra-priority-none'
       Don't indicate any priority for target registers.
  
! `-mlra-priority-compact'
       Indicate target register priority for r0..r3 / r12..r15.
  
! `-mlra-priority-noncompact'
       Reduce target register priority for r0..r3 / r12..r15.
  
! `-mno-millicode'
!      When optimizing for size (using `-Os'), prologues and epilogues
       that have to save or restore a large number of registers are often
       shortened by using call to a special function in libgcc; this is
       referred to as a _millicode_ call.  As these calls can pose
--- 12747,13124 ----
  3.18.3 ARC Options
  ------------------
  
! The following options control the architecture variant for which code is
! being compiled:
  
! '-mbarrel-shifter'
       Generate instructions supported by barrel shifter.  This is the
!      default unless '-mcpu=ARC601' or '-mcpu=ARCEM' is in effect.
  
! '-mcpu=CPU'
       Set architecture type, register usage, and instruction scheduling
       parameters for CPU.  There are also shortcut alias options
       available for backward compatibility and convenience.  Supported
       values for CPU are
  
!      'ARC600'
!      'arc600'
!           Compile for ARC600.  Aliases: '-mA6', '-mARC600'.
  
!      'ARC601'
!      'arc601'
!           Compile for ARC601.  Alias: '-mARC601'.
  
!      'ARC700'
!      'arc700'
!           Compile for ARC700.  Aliases: '-mA7', '-mARC700'.  This is the
!           default when configured with '--with-cpu=arc700'.
  
!      'ARCEM'
!      'arcem'
            Compile for ARC EM.
  
!      'ARCHS'
!      'archs'
            Compile for ARC HS.
  
! '-mdpfp'
! '-mdpfp-compact'
       FPX: Generate Double Precision FPX instructions, tuned for the
       compact implementation.
  
! '-mdpfp-fast'
       FPX: Generate Double Precision FPX instructions, tuned for the fast
       implementation.
  
! '-mno-dpfp-lrsr'
       Disable LR and SR instructions from using FPX extension aux
       registers.
  
! '-mea'
!      Generate Extended arithmetic instructions.  Currently only 'divaw',
!      'adds', 'subs', and 'sat16' are supported.  This is always enabled
!      for '-mcpu=ARC700'.
  
! '-mno-mpy'
       Do not generate mpy instructions for ARC700.
  
! '-mmul32x16'
       Generate 32x16 bit multiply and mac instructions.
  
! '-mmul64'
       Generate mul64 and mulu64 instructions.  Only valid for
!      '-mcpu=ARC600'.
  
! '-mnorm'
!      Generate norm instruction.  This is the default if '-mcpu=ARC700'
       is in effect.
  
! '-mspfp'
! '-mspfp-compact'
       FPX: Generate Single Precision FPX instructions, tuned for the
       compact implementation.
  
! '-mspfp-fast'
       FPX: Generate Single Precision FPX instructions, tuned for the fast
       implementation.
  
! '-msimd'
       Enable generation of ARC SIMD instructions via target-specific
!      builtins.  Only valid for '-mcpu=ARC700'.
  
! '-msoft-float'
       This option ignored; it is provided for compatibility purposes
!      only.  Software floating point code is emitted by default, and this
!      default can overridden by FPX options; 'mspfp', 'mspfp-compact', or
!      'mspfp-fast' for single precision, and 'mdpfp', 'mdpfp-compact', or
!      'mdpfp-fast' for double precision.
  
! '-mswap'
       Generate swap instructions.
  
! '-matomic'
       This enables Locked Load/Store Conditional extension to implement
       atomic memopry built-in functions.  Not available for ARC 6xx or
       ARC EM cores.
  
! '-mdiv-rem'
       Enable DIV/REM instructions for ARCv2 cores.
  
! '-mcode-density'
       Enable code density instructions for ARC EM, default on for ARC HS.
  
! '-mll64'
       Enable double load/store operations for ARC HS cores.
  
! '-mmpy-option=MULTO'
!      Compile ARCv2 code with a multiplier design option.  'wlh1' is the
       default value.  The recognized values for MULTO are:
  
!      '0'
            No multiplier available.
  
!      '1'
            The multiply option is set to w: 16x16 multiplier, fully
            pipelined.  The following instructions are enabled: MPYW, and
            MPYUW.
  
!      '2'
            The multiply option is set to wlh1: 32x32 multiplier, fully
            pipelined (1 stage).  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!      '3'
            The multiply option is set to wlh2: 32x32 multiplier, fully
            pipelined (2 stages).  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!      '4'
            The multiply option is set to wlh3: Two 16x16 multiplier,
            blocking, sequential.  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!      '5'
            The multiply option is set to wlh4: One 16x16 multiplier,
            blocking, sequential.  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
!      '6'
            The multiply option is set to wlh5: One 32x4 multiplier,
            blocking, sequential.  The following instructions are
            additionally enabled: MPY, MPYU, MPYM, MPYMU, and MPY_S.
  
       This option is only available for ARCv2 cores.
  
! '-mfpu=FPU'
       Enables specific floating-point hardware extension for ARCv2 core.
       Supported values for FPU are:
  
!      'fpus'
            Enables support for single precision floating point hardware
            extensions.
  
!      'fpud'
            Enables support for double precision floating point hardware
            extensions.  The single precision floating point extension is
            also enabled.  Not available for ARC EM.
  
!      'fpuda'
            Enables support for double precision floating point hardware
            extensions using double precision assist instructions.  The
            single precision floating point extension is also enabled.
            This option is only available for ARC EM.
  
!      'fpuda_div'
            Enables support for double precision floating point hardware
            extensions using double precision assist instructions, and
            simple precision square-root and divide hardware extensions.
!           The single precision floating point extension is also enabled.
!           This option is only available for ARC EM.
  
!      'fpuda_fma'
            Enables support for double precision floating point hardware
            extensions using double precision assist instructions, and
            simple precision fused multiple and add hardware extension.
!           The single precision floating point extension is also enabled.
!           This option is only available for ARC EM.
  
!      'fpuda_all'
            Enables support for double precision floating point hardware
!           extensions using double precision assist instructions, and all
!           simple precision hardware extensions.  The single precision
!           floating point extension is also enabled.  This option is only
!           available for ARC EM.
  
!      'fpus_div'
            Enables support for single precision floating point, and
            single precision square-root and divide hardware extensions.
  
!      'fpud_div'
            Enables support for double precision floating point, and
            double precision square-root and divide hardware extensions.
!           This option includes option 'fpus_div'.  Not available for ARC
            EM.
  
!      'fpus_fma'
            Enables support for single precision floating point, and
            single precision fused multiple and add hardware extensions.
  
!      'fpud_fma'
            Enables support for double precision floating point, and
            double precision fused multiple and add hardware extensions.
!           This option includes option 'fpus_fma'.  Not available for ARC
!           EM.
  
!      'fpus_all'
            Enables support for all single precision floating point
            hardware extensions.
  
!      'fpud_all'
            Enables support for all single and double precision floating
            point hardware extensions.  Not available for ARC EM.
  
   The following options are passed through to the assembler, and also
  define preprocessor macro symbols.
  
! '-mdsp-packa'
       Passed down to the assembler to enable the DSP Pack A extensions.
!      Also sets the preprocessor symbol '__Xdsp_packa'.
  
! '-mdvbf'
       Passed down to the assembler to enable the dual viterbi butterfly
!      extension.  Also sets the preprocessor symbol '__Xdvbf'.
  
! '-mlock'
       Passed down to the assembler to enable the Locked Load/Store
       Conditional extension.  Also sets the preprocessor symbol
!      '__Xlock'.
  
! '-mmac-d16'
       Passed down to the assembler.  Also sets the preprocessor symbol
!      '__Xxmac_d16'.
  
! '-mmac-24'
       Passed down to the assembler.  Also sets the preprocessor symbol
!      '__Xxmac_24'.
  
! '-mrtsc'
       Passed down to the assembler to enable the 64-bit Time-Stamp
       Counter extension instruction.  Also sets the preprocessor symbol
!      '__Xrtsc'.
  
! '-mswape'
       Passed down to the assembler to enable the swap byte ordering
       extension instruction.  Also sets the preprocessor symbol
!      '__Xswape'.
  
! '-mtelephony'
       Passed down to the assembler to enable dual and single operand
       instructions for telephony.  Also sets the preprocessor symbol
!      '__Xtelephony'.
  
! '-mxy'
       Passed down to the assembler to enable the XY Memory extension.
!      Also sets the preprocessor symbol '__Xxy'.
  
   The following options control how the assembly code is annotated:
  
! '-misize'
       Annotate assembler instructions with estimated addresses.
  
! '-mannotate-align'
       Explain what alignment considerations lead to the decision to make
       an instruction short or long.
  
   The following options are passed through to the linker:
  
! '-marclinux'
!      Passed through to the linker, to specify use of the 'arclinux'
       emulation.  This option is enabled by default in tool chains built
!      for 'arc-linux-uclibc' and 'arceb-linux-uclibc' targets when
       profiling is not requested.
  
! '-marclinux_prof'
!      Passed through to the linker, to specify use of the 'arclinux_prof'
!      emulation.  This option is enabled by default in tool chains built
!      for 'arc-linux-uclibc' and 'arceb-linux-uclibc' targets when
!      profiling is requested.
  
   The following options control the semantics of generated code:
  
! '-mlong-calls'
       Generate call insns as register indirect calls, thus providing
       access to the full 32-bit address range.
  
! '-mmedium-calls'
       Don't use less than 25 bit addressing range for calls, which is the
       offset available for an unconditional branch-and-link instruction.
!      Conditional execution of function calls is suppressed, to allow use
!      of the 25-bit range, rather than the 21-bit range with conditional
!      branch-and-link.  This is the default for tool chains built for
!      'arc-linux-uclibc' and 'arceb-linux-uclibc' targets.
  
! '-mno-sdata'
       Do not generate sdata references.  This is the default for tool
!      chains built for 'arc-linux-uclibc' and 'arceb-linux-uclibc'
       targets.
  
! '-mucb-mcount'
!      Instrument with mcount calls as used in UCB code.  I.e.  do the
       counting in the callee, not the caller.  By default ARC
       instrumentation counts in the caller.
  
! '-mvolatile-cache'
       Use ordinarily cached memory accesses for volatile references.
       This is the default.
  
! '-mno-volatile-cache'
       Enable cache bypass for volatile references.
  
   The following options fine tune code generation:
! '-malign-call'
       Do alignment optimizations for call instructions.
  
! '-mauto-modify-reg'
       Enable the use of pre/post modify with register displacement.
  
! '-mbbit-peephole'
       Enable bbit peephole2.
  
! '-mno-brcc'
!      This option disables a target-specific pass in 'arc_reorg' to
!      generate 'BRcc' instructions.  It has no effect on 'BRcc'
       generation driven by the combiner pass.
  
! '-mcase-vector-pcrel'
       Use pc-relative switch case tables - this enables case table
!      shortening.  This is the default for '-Os'.
  
! '-mcompact-casesi'
!      Enable compact casesi pattern.  This is the default for '-Os'.
  
! '-mno-cond-exec'
       Disable ARCompact specific pass to generate conditional execution
       instructions.  Due to delay slot scheduling and interactions
       between operand numbers, literal sizes, instruction lengths, and
       the support for conditional execution, the target-independent pass
!      to generate conditional execution is often lacking, so the ARC port
!      has kept a special pass around that tries to find more conditional
!      execution generating opportunities after register allocation,
!      branch shortening, and delay slot scheduling have been done.  This
!      pass generally, but not always, improves performance and code size,
!      at the cost of extra compilation time, which is why there is an
!      option to switch it off.  If you have a problem with call
!      instructions exceeding their allowable offset range because they
!      are conditionalized, you should consider using '-mmedium-calls'
!      instead.
  
! '-mearly-cbranchsi'
       Enable pre-reload use of the cbranchsi pattern.
  
! '-mexpand-adddi'
!      Expand 'adddi3' and 'subdi3' at rtl generation time into 'add.f',
!      'adc' etc.
  
! '-mindexed-loads'
       Enable the use of indexed loads.  This can be problematic because
       some optimizers then assume that indexed stores exist, which is not
       the case.
  
       Enable Local Register Allocation.  This is still experimental for
       ARC, so by default the compiler uses standard reload (i.e.
!      '-mno-lra').
  
! '-mlra-priority-none'
       Don't indicate any priority for target registers.
  
! '-mlra-priority-compact'
       Indicate target register priority for r0..r3 / r12..r15.
  
! '-mlra-priority-noncompact'
       Reduce target register priority for r0..r3 / r12..r15.
  
! '-mno-millicode'
!      When optimizing for size (using '-Os'), prologues and epilogues
       that have to save or restore a large number of registers are often
       shortened by using call to a special function in libgcc; this is
       referred to as a _millicode_ call.  As these calls can pose
*************** define preprocessor macro symbols.
*** 13224,13361 ****
       nonstandard way, this option is provided to turn off millicode call
       generation.
  
! `-mmixed-code'
       Tweak register allocation to help 16-bit instruction generation.
!      This generally has the effect of decreasing the average
!      instruction size while increasing the instruction count.
  
! `-mq-class'
       Enable 'q' instruction alternatives.  This is the default for
!      `-Os'.
  
! `-mRcq'
!      Enable Rcq constraint handling - most short code generation
!      depends on this.  This is the default.
  
! `-mRcw'
       Enable Rcw constraint handling - ccfsm condexec mostly depends on
       this.  This is the default.
  
! `-msize-level=LEVEL'
!      Fine-tune size optimization with regards to instruction lengths
!      and alignment.  The recognized values for LEVEL are:
!     `0'
            No size optimization.  This level is deprecated and treated
!           like `1'.
  
!     `1'
            Short instructions are used opportunistically.
  
!     `2'
!           In addition, alignment of loops and of code after barriers
!           are dropped.
  
!     `3'
            In addition, optional data alignment is dropped, and the
!           option `Os' is enabled.
! 
  
!      This defaults to `3' when `-Os' is in effect.  Otherwise, the
!      behavior when this is not set is equivalent to level `1'.
  
! `-mtune=CPU'
       Set instruction scheduling parameters for CPU, overriding any
!      implied by `-mcpu='.
  
       Supported values for CPU are
  
!     `ARC600'
            Tune for ARC600 cpu.
  
!     `ARC601'
            Tune for ARC601 cpu.
  
!     `ARC700'
            Tune for ARC700 cpu with standard multiplier block.
  
!     `ARC700-xmac'
            Tune for ARC700 cpu with XMAC block.
  
!     `ARC725D'
            Tune for ARC725D cpu.
  
!     `ARC750D'
            Tune for ARC750D cpu.
  
! 
! `-mmultcost=NUM'
!      Cost to assume for a multiply instruction, with `4' being equal to
       a normal instruction.
  
! `-munalign-prob-threshold=PROBABILITY'
!      Set probability threshold for unaligning branches.  When tuning
!      for `ARC700' and optimizing for speed, branches without filled
!      delay slot are preferably emitted unaligned and long, unless
!      profiling indicates that the probability for the branch to be taken
!      is below PROBABILITY.  *Note Cross-profiling::.  The default is
       (REG_BR_PROB_BASE/2), i.e. 5000.
  
- 
   The following options are maintained for backward compatibility, but
  are now deprecated and will be removed in a future release:
  
! `-margonaut'
       Obsolete FPX.
  
! `-mbig-endian'
! `-EB'
       Compile code for big endian targets.  Use of these options is now
       deprecated.  Users wanting big-endian code, should use the
!      `arceb-elf32' and `arceb-linux-uclibc' targets when building the
       tool chain, for which big-endian is the default.
  
! `-mlittle-endian'
! `-EL'
       Compile code for little endian targets.  Use of these options is
       now deprecated.  Users wanting little-endian code should use the
!      `arc-elf32' and `arc-linux-uclibc' targets when building the tool
       chain, for which little-endian is the default.
  
! `-mbarrel_shifter'
!      Replaced by `-mbarrel-shifter'.
  
! `-mdpfp_compact'
!      Replaced by `-mdpfp-compact'.
  
! `-mdpfp_fast'
!      Replaced by `-mdpfp-fast'.
  
! `-mdsp_packa'
!      Replaced by `-mdsp-packa'.
  
! `-mEA'
!      Replaced by `-mea'.
  
! `-mmac_24'
!      Replaced by `-mmac-24'.
  
! `-mmac_d16'
!      Replaced by `-mmac-d16'.
  
! `-mspfp_compact'
!      Replaced by `-mspfp-compact'.
  
! `-mspfp_fast'
!      Replaced by `-mspfp-fast'.
  
! `-mtune=CPU'
!      Values `arc600', `arc601', `arc700' and `arc700-xmac' for CPU are
!      replaced by `ARC600', `ARC601', `ARC700' and `ARC700-xmac'
       respectively
  
! `-multcost=NUM'
!      Replaced by `-mmultcost'.
! 
  
  
  File: gcc.info,  Node: ARM Options,  Next: AVR Options,  Prev: ARC Options,  Up: Submodel Options
--- 13126,13259 ----
       nonstandard way, this option is provided to turn off millicode call
       generation.
  
! '-mmixed-code'
       Tweak register allocation to help 16-bit instruction generation.
!      This generally has the effect of decreasing the average instruction
!      size while increasing the instruction count.
  
! '-mq-class'
       Enable 'q' instruction alternatives.  This is the default for
!      '-Os'.
  
! '-mRcq'
!      Enable Rcq constraint handling - most short code generation depends
!      on this.  This is the default.
  
! '-mRcw'
       Enable Rcw constraint handling - ccfsm condexec mostly depends on
       this.  This is the default.
  
! '-msize-level=LEVEL'
!      Fine-tune size optimization with regards to instruction lengths and
!      alignment.  The recognized values for LEVEL are:
!      '0'
            No size optimization.  This level is deprecated and treated
!           like '1'.
  
!      '1'
            Short instructions are used opportunistically.
  
!      '2'
!           In addition, alignment of loops and of code after barriers are
!           dropped.
  
!      '3'
            In addition, optional data alignment is dropped, and the
!           option 'Os' is enabled.
  
!      This defaults to '3' when '-Os' is in effect.  Otherwise, the
!      behavior when this is not set is equivalent to level '1'.
  
! '-mtune=CPU'
       Set instruction scheduling parameters for CPU, overriding any
!      implied by '-mcpu='.
  
       Supported values for CPU are
  
!      'ARC600'
            Tune for ARC600 cpu.
  
!      'ARC601'
            Tune for ARC601 cpu.
  
!      'ARC700'
            Tune for ARC700 cpu with standard multiplier block.
  
!      'ARC700-xmac'
            Tune for ARC700 cpu with XMAC block.
  
!      'ARC725D'
            Tune for ARC725D cpu.
  
!      'ARC750D'
            Tune for ARC750D cpu.
  
! '-mmultcost=NUM'
!      Cost to assume for a multiply instruction, with '4' being equal to
       a normal instruction.
  
! '-munalign-prob-threshold=PROBABILITY'
!      Set probability threshold for unaligning branches.  When tuning for
!      'ARC700' and optimizing for speed, branches without filled delay
!      slot are preferably emitted unaligned and long, unless profiling
!      indicates that the probability for the branch to be taken is below
!      PROBABILITY.  *Note Cross-profiling::.  The default is
       (REG_BR_PROB_BASE/2), i.e. 5000.
  
   The following options are maintained for backward compatibility, but
  are now deprecated and will be removed in a future release:
  
! '-margonaut'
       Obsolete FPX.
  
! '-mbig-endian'
! '-EB'
       Compile code for big endian targets.  Use of these options is now
       deprecated.  Users wanting big-endian code, should use the
!      'arceb-elf32' and 'arceb-linux-uclibc' targets when building the
       tool chain, for which big-endian is the default.
  
! '-mlittle-endian'
! '-EL'
       Compile code for little endian targets.  Use of these options is
       now deprecated.  Users wanting little-endian code should use the
!      'arc-elf32' and 'arc-linux-uclibc' targets when building the tool
       chain, for which little-endian is the default.
  
! '-mbarrel_shifter'
!      Replaced by '-mbarrel-shifter'.
  
! '-mdpfp_compact'
!      Replaced by '-mdpfp-compact'.
  
! '-mdpfp_fast'
!      Replaced by '-mdpfp-fast'.
  
! '-mdsp_packa'
!      Replaced by '-mdsp-packa'.
  
! '-mEA'
!      Replaced by '-mea'.
  
! '-mmac_24'
!      Replaced by '-mmac-24'.
  
! '-mmac_d16'
!      Replaced by '-mmac-d16'.
  
! '-mspfp_compact'
!      Replaced by '-mspfp-compact'.
  
! '-mspfp_fast'
!      Replaced by '-mspfp-fast'.
  
! '-mtune=CPU'
!      Values 'arc600', 'arc601', 'arc700' and 'arc700-xmac' for CPU are
!      replaced by 'ARC600', 'ARC601', 'ARC700' and 'ARC700-xmac'
       respectively
  
! '-multcost=NUM'
!      Replaced by '-mmultcost'.
  
  
  File: gcc.info,  Node: ARM Options,  Next: AVR Options,  Prev: ARC Options,  Up: Submodel Options
*************** File: gcc.info,  Node: ARM Options,  Nex
*** 13363,13410 ****
  3.18.4 ARM Options
  ------------------
  
! These `-m' options are defined for the ARM port:
  
! `-mabi=NAME'
       Generate code for the specified ABI.  Permissible values are:
!      `apcs-gnu', `atpcs', `aapcs', `aapcs-linux' and `iwmmxt'.
  
! `-mapcs-frame'
       Generate a stack frame that is compliant with the ARM Procedure
       Call Standard for all functions, even if this is not strictly
       necessary for correct execution of the code.  Specifying
!      `-fomit-frame-pointer' with this option causes the stack frames
!      not to be generated for leaf functions.  The default is
!      `-mno-apcs-frame'.  This option is deprecated.
  
! `-mapcs'
!      This is a synonym for `-mapcs-frame' and is deprecated.
  
! `-mthumb-interwork'
       Generate code that supports calling between the ARM and Thumb
       instruction sets.  Without this option, on pre-v5 architectures,
       the two instruction sets cannot be reliably used inside one
!      program.  The default is `-mno-thumb-interwork', since slightly
!      larger code is generated when `-mthumb-interwork' is specified.
!      In AAPCS configurations this option is meaningless.
  
! `-mno-sched-prolog'
!      Prevent the reordering of instructions in the function prologue,
!      or the merging of those instruction with the instructions in the
       function's body.  This means that all functions start with a
!      recognizable set of instructions (or in fact one of a choice from
!      a small set of different function prologues), and this information
       can be used to locate the start of functions inside an executable
!      piece of code.  The default is `-msched-prolog'.
  
! `-mfloat-abi=NAME'
!      Specifies which floating-point ABI to use.  Permissible values
!      are: `soft', `softfp' and `hard'.
  
!      Specifying `soft' causes GCC to generate output containing library
!      calls for floating-point operations.  `softfp' allows the
       generation of code using hardware floating-point instructions, but
!      still uses the soft-float calling conventions.  `hard' allows
       generation of floating-point instructions and uses FPU-specific
       calling conventions.
  
--- 13261,13308 ----
  3.18.4 ARM Options
  ------------------
  
! These '-m' options are defined for the ARM port:
  
! '-mabi=NAME'
       Generate code for the specified ABI.  Permissible values are:
!      'apcs-gnu', 'atpcs', 'aapcs', 'aapcs-linux' and 'iwmmxt'.
  
! '-mapcs-frame'
       Generate a stack frame that is compliant with the ARM Procedure
       Call Standard for all functions, even if this is not strictly
       necessary for correct execution of the code.  Specifying
!      '-fomit-frame-pointer' with this option causes the stack frames not
!      to be generated for leaf functions.  The default is
!      '-mno-apcs-frame'.  This option is deprecated.
  
! '-mapcs'
!      This is a synonym for '-mapcs-frame' and is deprecated.
  
! '-mthumb-interwork'
       Generate code that supports calling between the ARM and Thumb
       instruction sets.  Without this option, on pre-v5 architectures,
       the two instruction sets cannot be reliably used inside one
!      program.  The default is '-mno-thumb-interwork', since slightly
!      larger code is generated when '-mthumb-interwork' is specified.  In
!      AAPCS configurations this option is meaningless.
  
! '-mno-sched-prolog'
!      Prevent the reordering of instructions in the function prologue, or
!      the merging of those instruction with the instructions in the
       function's body.  This means that all functions start with a
!      recognizable set of instructions (or in fact one of a choice from a
!      small set of different function prologues), and this information
       can be used to locate the start of functions inside an executable
!      piece of code.  The default is '-msched-prolog'.
  
! '-mfloat-abi=NAME'
!      Specifies which floating-point ABI to use.  Permissible values are:
!      'soft', 'softfp' and 'hard'.
  
!      Specifying 'soft' causes GCC to generate output containing library
!      calls for floating-point operations.  'softfp' allows the
       generation of code using hardware floating-point instructions, but
!      still uses the soft-float calling conventions.  'hard' allows
       generation of floating-point instructions and uses FPU-specific
       calling conventions.
  
*************** These `-m' options are defined for the A
*** 13413,13609 ****
       you must compile your entire program with the same ABI, and link
       with a compatible set of libraries.
  
! `-mlittle-endian'
       Generate code for a processor running in little-endian mode.  This
       is the default for all standard configurations.
  
! `-mbig-endian'
       Generate code for a processor running in big-endian mode; the
       default is to compile code for a little-endian processor.
  
! `-march=NAME'
       This specifies the name of the target ARM architecture.  GCC uses
       this name to determine what kind of instructions it can emit when
       generating assembly code.  This option can be used in conjunction
!      with or instead of the `-mcpu=' option.  Permissible names are:
!      `armv2', `armv2a', `armv3', `armv3m', `armv4', `armv4t', `armv5',
!      `armv5t', `armv5e', `armv5te', `armv6', `armv6j', `armv6t2',
!      `armv6z', `armv6kz', `armv6-m', `armv7', `armv7-a', `armv7-r',
!      `armv7-m', `armv7e-m', `armv7ve', `armv8-a', `armv8-a+crc',
!      `armv8.1-a', `armv8.1-a+crc', `iwmmxt', `iwmmxt2', `ep9312'.
  
!      Architecture revisions older than `armv4t' are deprecated.
  
!      `-march=armv7ve' is the armv7-a architecture with virtualization
       extensions.
  
!      `-march=armv8-a+crc' enables code generation for the ARMv8-A
       architecture together with the optional CRC32 extensions.
  
!      `-march=native' causes the compiler to auto-detect the architecture
       of the build computer.  At present, this feature is only supported
       on GNU/Linux, and not all architectures are recognized.  If the
       auto-detect is unsuccessful the option has no effect.
  
! `-mtune=NAME'
       This option specifies the name of the target ARM processor for
       which GCC should tune the performance of the code.  For some ARM
       implementations better performance can be obtained by using this
!      option.  Permissible names are: `arm2', `arm250', `arm3', `arm6',
!      `arm60', `arm600', `arm610', `arm620', `arm7', `arm7m', `arm7d',
!      `arm7dm', `arm7di', `arm7dmi', `arm70', `arm700', `arm700i',
!      `arm710', `arm710c', `arm7100', `arm720', `arm7500', `arm7500fe',
!      `arm7tdmi', `arm7tdmi-s', `arm710t', `arm720t', `arm740t',
!      `strongarm', `strongarm110', `strongarm1100', `strongarm1110',
!      `arm8', `arm810', `arm9', `arm9e', `arm920', `arm920t', `arm922t',
!      `arm946e-s', `arm966e-s', `arm968e-s', `arm926ej-s', `arm940t',
!      `arm9tdmi', `arm10tdmi', `arm1020t', `arm1026ej-s', `arm10e',
!      `arm1020e', `arm1022e', `arm1136j-s', `arm1136jf-s', `mpcore',
!      `mpcorenovfp', `arm1156t2-s', `arm1156t2f-s', `arm1176jz-s',
!      `arm1176jzf-s', `generic-armv7-a', `cortex-a5', `cortex-a7',
!      `cortex-a8', `cortex-a9', `cortex-a12', `cortex-a15', `cortex-a17',
!      `cortex-a32', `cortex-a35', `cortex-a53', `cortex-a57',
!      `cortex-a72', `cortex-r4', `cortex-r4f', `cortex-r5', `cortex-r7',
!      `cortex-r8', `cortex-m7', `cortex-m4', `cortex-m3', `cortex-m1',
!      `cortex-m0', `cortex-m0plus', `cortex-m1.small-multiply',
!      `cortex-m0.small-multiply', `cortex-m0plus.small-multiply',
!      `exynos-m1', `qdf24xx', `marvell-pj4', `xscale', `iwmmxt',
!      `iwmmxt2', `ep9312', `fa526', `fa626', `fa606te', `fa626te',
!      `fmp626', `fa726te', `xgene1'.
  
       Additionally, this option can specify that GCC should tune the
!      performance of the code for a big.LITTLE system.  Permissible
!      names are: `cortex-a15.cortex-a7', `cortex-a17.cortex-a7',
!      `cortex-a57.cortex-a53', `cortex-a72.cortex-a53'.
  
!      `-mtune=generic-ARCH' specifies that GCC should tune the
       performance for a blend of processors within architecture ARCH.
       The aim is to generate code that run well on the current most
       popular processors, balancing between optimizations that benefit
       some CPUs in the range, and avoiding performance pitfalls of other
!      CPUs.  The effects of this option may change in future GCC
!      versions as CPU models come and go.
  
!      `-mtune=native' causes the compiler to auto-detect the CPU of the
       build computer.  At present, this feature is only supported on
       GNU/Linux, and not all architectures are recognized.  If the
       auto-detect is unsuccessful the option has no effect.
  
! `-mcpu=NAME'
!      This specifies the name of the target ARM processor.  GCC uses
!      this name to derive the name of the target ARM architecture (as if
!      specified by `-march') and the ARM processor type for which to
!      tune for performance (as if specified by `-mtune').  Where this
!      option is used in conjunction with `-march' or `-mtune', those
!      options take precedence over the appropriate part of this option.
  
       Permissible names for this option are the same as those for
!      `-mtune'.
  
!      `-mcpu=generic-ARCH' is also permissible, and is equivalent to
!      `-march=ARCH -mtune=generic-ARCH'.  See `-mtune' for more
       information.
  
!      `-mcpu=native' causes the compiler to auto-detect the CPU of the
       build computer.  At present, this feature is only supported on
       GNU/Linux, and not all architectures are recognized.  If the
       auto-detect is unsuccessful the option has no effect.
  
! `-mfpu=NAME'
!      This specifies what floating-point hardware (or hardware
!      emulation) is available on the target.  Permissible names are:
!      `vfp', `vfpv3', `vfpv3-fp16', `vfpv3-d16', `vfpv3-d16-fp16',
!      `vfpv3xd', `vfpv3xd-fp16', `neon', `neon-fp16', `vfpv4',
!      `vfpv4-d16', `fpv4-sp-d16', `neon-vfpv4', `fpv5-d16',
!      `fpv5-sp-d16', `fp-armv8', `neon-fp-armv8' and
!      `crypto-neon-fp-armv8'.
  
!      If `-msoft-float' is specified this specifies the format of
       floating-point values.
  
       If the selected floating-point hardware includes the NEON extension
!      (e.g. `-mfpu'=`neon'), note that floating-point operations are not
       generated by GCC's auto-vectorization pass unless
!      `-funsafe-math-optimizations' is also specified.  This is because
       NEON hardware does not fully implement the IEEE 754 standard for
       floating-point arithmetic (in particular denormal values are
       treated as zero), so the use of NEON instructions may lead to a
       loss of precision.
  
       You can also set the fpu name at function level by using the
!      `target("fpu=")' function attributes (*note ARM Function
       Attributes::) or pragmas (*note Function Specific Option
       Pragmas::).
  
! `-mfp16-format=NAME'
!      Specify the format of the `__fp16' half-precision floating-point
!      type.  Permissible names are `none', `ieee', and `alternative';
!      the default is `none', in which case the `__fp16' type is not
!      defined.  *Note Half-Precision::, for more information.
  
! `-mstructure-size-boundary=N'
       The sizes of all structures and unions are rounded up to a multiple
       of the number of bits set by this option.  Permissible values are
       8, 32 and 64.  The default value varies for different toolchains.
!      For the COFF targeted toolchain the default value is 8.  A value
!      of 64 is only allowed if the underlying ABI supports it.
  
!      Specifying a larger number can produce faster, more efficient
!      code, but can also increase the size of the program.  Different
!      values are potentially incompatible.  Code compiled with one value
!      cannot necessarily expect to work with code or libraries compiled
!      with another value, if they exchange information using structures
!      or unions.
  
! `-mabort-on-noreturn'
!      Generate a call to the function `abort' at the end of a `noreturn'
       function.  It is executed if the function tries to return.
  
! `-mlong-calls'
! `-mno-long-calls'
       Tells the compiler to perform function calls by first loading the
       address of the function into a register and then performing a
       subroutine call on this register.  This switch is needed if the
!      target function lies outside of the 64-megabyte addressing range
!      of the offset-based version of subroutine call instruction.
  
       Even if this switch is enabled, not all function calls are turned
       into long calls.  The heuristic is that static functions, functions
!      that have the `short_call' attribute, functions that are inside
!      the scope of a `#pragma no_long_calls' directive, and functions
!      whose definitions have already been compiled within the current
!      compilation unit are not turned into long calls.  The exceptions
!      to this rule are that weak function definitions, functions with
!      the `long_call' attribute or the `section' attribute, and
!      functions that are within the scope of a `#pragma long_calls'
!      directive are always turned into long calls.
  
       This feature is not enabled by default.  Specifying
!      `-mno-long-calls' restores the default behavior, as does placing
!      the function calls within the scope of a `#pragma long_calls_off'
       directive.  Note these switches have no effect on how the compiler
       generates code to handle function calls via function pointers.
  
! `-msingle-pic-base'
       Treat the register used for PIC addressing as read-only, rather
       than loading it in the prologue for each function.  The runtime
       system is responsible for initializing this register with an
       appropriate value before execution begins.
  
! `-mpic-register=REG'
       Specify the register to be used for PIC addressing.  For standard
       PIC base case, the default is any suitable register determined by
!      compiler.  For single PIC base case, the default is `R9' if target
       is EABI based or stack-checking is enabled, otherwise the default
!      is `R10'.
  
! `-mpic-data-is-text-relative'
!      Assume that each data segments are relative to text segment at
!      load time.  Therefore, it permits addressing data using
!      PC-relative operations.  This option is on by default for targets
!      other than VxWorks RTP.
  
! `-mpoke-function-name'
       Write the name of each function into the text section, directly
       preceding the function prologue.  The generated code is similar to
       this:
--- 13311,13506 ----
       you must compile your entire program with the same ABI, and link
       with a compatible set of libraries.
  
! '-mlittle-endian'
       Generate code for a processor running in little-endian mode.  This
       is the default for all standard configurations.
  
! '-mbig-endian'
       Generate code for a processor running in big-endian mode; the
       default is to compile code for a little-endian processor.
  
! '-march=NAME'
       This specifies the name of the target ARM architecture.  GCC uses
       this name to determine what kind of instructions it can emit when
       generating assembly code.  This option can be used in conjunction
!      with or instead of the '-mcpu=' option.  Permissible names are:
!      'armv2', 'armv2a', 'armv3', 'armv3m', 'armv4', 'armv4t', 'armv5',
!      'armv5t', 'armv5e', 'armv5te', 'armv6', 'armv6j', 'armv6t2',
!      'armv6z', 'armv6kz', 'armv6-m', 'armv7', 'armv7-a', 'armv7-r',
!      'armv7-m', 'armv7e-m', 'armv7ve', 'armv8-a', 'armv8-a+crc',
!      'armv8.1-a', 'armv8.1-a+crc', 'iwmmxt', 'iwmmxt2', 'ep9312'.
  
!      Architecture revisions older than 'armv4t' are deprecated.
  
!      '-march=armv7ve' is the armv7-a architecture with virtualization
       extensions.
  
!      '-march=armv8-a+crc' enables code generation for the ARMv8-A
       architecture together with the optional CRC32 extensions.
  
!      '-march=native' causes the compiler to auto-detect the architecture
       of the build computer.  At present, this feature is only supported
       on GNU/Linux, and not all architectures are recognized.  If the
       auto-detect is unsuccessful the option has no effect.
  
! '-mtune=NAME'
       This option specifies the name of the target ARM processor for
       which GCC should tune the performance of the code.  For some ARM
       implementations better performance can be obtained by using this
!      option.  Permissible names are: 'arm2', 'arm250', 'arm3', 'arm6',
!      'arm60', 'arm600', 'arm610', 'arm620', 'arm7', 'arm7m', 'arm7d',
!      'arm7dm', 'arm7di', 'arm7dmi', 'arm70', 'arm700', 'arm700i',
!      'arm710', 'arm710c', 'arm7100', 'arm720', 'arm7500', 'arm7500fe',
!      'arm7tdmi', 'arm7tdmi-s', 'arm710t', 'arm720t', 'arm740t',
!      'strongarm', 'strongarm110', 'strongarm1100', 'strongarm1110',
!      'arm8', 'arm810', 'arm9', 'arm9e', 'arm920', 'arm920t', 'arm922t',
!      'arm946e-s', 'arm966e-s', 'arm968e-s', 'arm926ej-s', 'arm940t',
!      'arm9tdmi', 'arm10tdmi', 'arm1020t', 'arm1026ej-s', 'arm10e',
!      'arm1020e', 'arm1022e', 'arm1136j-s', 'arm1136jf-s', 'mpcore',
!      'mpcorenovfp', 'arm1156t2-s', 'arm1156t2f-s', 'arm1176jz-s',
!      'arm1176jzf-s', 'generic-armv7-a', 'cortex-a5', 'cortex-a7',
!      'cortex-a8', 'cortex-a9', 'cortex-a12', 'cortex-a15', 'cortex-a17',
!      'cortex-a32', 'cortex-a35', 'cortex-a53', 'cortex-a57',
!      'cortex-a72', 'cortex-r4', 'cortex-r4f', 'cortex-r5', 'cortex-r7',
!      'cortex-r8', 'cortex-m7', 'cortex-m4', 'cortex-m3', 'cortex-m1',
!      'cortex-m0', 'cortex-m0plus', 'cortex-m1.small-multiply',
!      'cortex-m0.small-multiply', 'cortex-m0plus.small-multiply',
!      'exynos-m1', 'qdf24xx', 'marvell-pj4', 'xscale', 'iwmmxt',
!      'iwmmxt2', 'ep9312', 'fa526', 'fa626', 'fa606te', 'fa626te',
!      'fmp626', 'fa726te', 'xgene1'.
  
       Additionally, this option can specify that GCC should tune the
!      performance of the code for a big.LITTLE system.  Permissible names
!      are: 'cortex-a15.cortex-a7', 'cortex-a17.cortex-a7',
!      'cortex-a57.cortex-a53', 'cortex-a72.cortex-a53'.
  
!      '-mtune=generic-ARCH' specifies that GCC should tune the
       performance for a blend of processors within architecture ARCH.
       The aim is to generate code that run well on the current most
       popular processors, balancing between optimizations that benefit
       some CPUs in the range, and avoiding performance pitfalls of other
!      CPUs.  The effects of this option may change in future GCC versions
!      as CPU models come and go.
  
!      '-mtune=native' causes the compiler to auto-detect the CPU of the
       build computer.  At present, this feature is only supported on
       GNU/Linux, and not all architectures are recognized.  If the
       auto-detect is unsuccessful the option has no effect.
  
! '-mcpu=NAME'
!      This specifies the name of the target ARM processor.  GCC uses this
!      name to derive the name of the target ARM architecture (as if
!      specified by '-march') and the ARM processor type for which to tune
!      for performance (as if specified by '-mtune').  Where this option
!      is used in conjunction with '-march' or '-mtune', those options
!      take precedence over the appropriate part of this option.
  
       Permissible names for this option are the same as those for
!      '-mtune'.
  
!      '-mcpu=generic-ARCH' is also permissible, and is equivalent to
!      '-march=ARCH -mtune=generic-ARCH'.  See '-mtune' for more
       information.
  
!      '-mcpu=native' causes the compiler to auto-detect the CPU of the
       build computer.  At present, this feature is only supported on
       GNU/Linux, and not all architectures are recognized.  If the
       auto-detect is unsuccessful the option has no effect.
  
! '-mfpu=NAME'
!      This specifies what floating-point hardware (or hardware emulation)
!      is available on the target.  Permissible names are: 'vfp', 'vfpv3',
!      'vfpv3-fp16', 'vfpv3-d16', 'vfpv3-d16-fp16', 'vfpv3xd',
!      'vfpv3xd-fp16', 'neon', 'neon-fp16', 'vfpv4', 'vfpv4-d16',
!      'fpv4-sp-d16', 'neon-vfpv4', 'fpv5-d16', 'fpv5-sp-d16', 'fp-armv8',
!      'neon-fp-armv8' and 'crypto-neon-fp-armv8'.
  
!      If '-msoft-float' is specified this specifies the format of
       floating-point values.
  
       If the selected floating-point hardware includes the NEON extension
!      (e.g.  '-mfpu'='neon'), note that floating-point operations are not
       generated by GCC's auto-vectorization pass unless
!      '-funsafe-math-optimizations' is also specified.  This is because
       NEON hardware does not fully implement the IEEE 754 standard for
       floating-point arithmetic (in particular denormal values are
       treated as zero), so the use of NEON instructions may lead to a
       loss of precision.
  
       You can also set the fpu name at function level by using the
!      'target("fpu=")' function attributes (*note ARM Function
       Attributes::) or pragmas (*note Function Specific Option
       Pragmas::).
  
! '-mfp16-format=NAME'
!      Specify the format of the '__fp16' half-precision floating-point
!      type.  Permissible names are 'none', 'ieee', and 'alternative'; the
!      default is 'none', in which case the '__fp16' type is not defined.
!      *Note Half-Precision::, for more information.
  
! '-mstructure-size-boundary=N'
       The sizes of all structures and unions are rounded up to a multiple
       of the number of bits set by this option.  Permissible values are
       8, 32 and 64.  The default value varies for different toolchains.
!      For the COFF targeted toolchain the default value is 8.  A value of
!      64 is only allowed if the underlying ABI supports it.
  
!      Specifying a larger number can produce faster, more efficient code,
!      but can also increase the size of the program.  Different values
!      are potentially incompatible.  Code compiled with one value cannot
!      necessarily expect to work with code or libraries compiled with
!      another value, if they exchange information using structures or
!      unions.
  
! '-mabort-on-noreturn'
!      Generate a call to the function 'abort' at the end of a 'noreturn'
       function.  It is executed if the function tries to return.
  
! '-mlong-calls'
! '-mno-long-calls'
       Tells the compiler to perform function calls by first loading the
       address of the function into a register and then performing a
       subroutine call on this register.  This switch is needed if the
!      target function lies outside of the 64-megabyte addressing range of
!      the offset-based version of subroutine call instruction.
  
       Even if this switch is enabled, not all function calls are turned
       into long calls.  The heuristic is that static functions, functions
!      that have the 'short_call' attribute, functions that are inside the
!      scope of a '#pragma no_long_calls' directive, and functions whose
!      definitions have already been compiled within the current
!      compilation unit are not turned into long calls.  The exceptions to
!      this rule are that weak function definitions, functions with the
!      'long_call' attribute or the 'section' attribute, and functions
!      that are within the scope of a '#pragma long_calls' directive are
!      always turned into long calls.
  
       This feature is not enabled by default.  Specifying
!      '-mno-long-calls' restores the default behavior, as does placing
!      the function calls within the scope of a '#pragma long_calls_off'
       directive.  Note these switches have no effect on how the compiler
       generates code to handle function calls via function pointers.
  
! '-msingle-pic-base'
       Treat the register used for PIC addressing as read-only, rather
       than loading it in the prologue for each function.  The runtime
       system is responsible for initializing this register with an
       appropriate value before execution begins.
  
! '-mpic-register=REG'
       Specify the register to be used for PIC addressing.  For standard
       PIC base case, the default is any suitable register determined by
!      compiler.  For single PIC base case, the default is 'R9' if target
       is EABI based or stack-checking is enabled, otherwise the default
!      is 'R10'.
  
! '-mpic-data-is-text-relative'
!      Assume that each data segments are relative to text segment at load
!      time.  Therefore, it permits addressing data using PC-relative
!      operations.  This option is on by default for targets other than
!      VxWorks RTP.
  
! '-mpoke-function-name'
       Write the name of each function into the text section, directly
       preceding the function prologue.  The generated code is similar to
       this:
*************** These `-m' options are defined for the A
*** 13619,13701 ****
                     sub     fp, ip, #4
  
       When performing a stack backtrace, code can inspect the value of
!      `pc' stored at `fp + 0'.  If the trace function then looks at
!      location `pc - 12' and the top 8 bits are set, then we know that
       there is a function name embedded immediately preceding this
!      location and has length `((pc[-3]) & 0xff000000)'.
  
- `-mthumb'
- `-marm'
       Select between generating code that executes in ARM and Thumb
       states.  The default for most configurations is to generate code
       that executes in ARM state, but the default can be changed by
!      configuring GCC with the `--with-mode='STATE configure option.
  
       You can also override the ARM and Thumb mode for each function by
!      using the `target("thumb")' and `target("arm")' function attributes
       (*note ARM Function Attributes::) or pragmas (*note Function
       Specific Option Pragmas::).
  
! `-mtpcs-frame'
       Generate a stack frame that is compliant with the Thumb Procedure
       Call Standard for all non-leaf functions.  (A leaf function is one
       that does not call any other functions.)  The default is
!      `-mno-tpcs-frame'.
  
! `-mtpcs-leaf-frame'
       Generate a stack frame that is compliant with the Thumb Procedure
!      Call Standard for all leaf functions.  (A leaf function is one
!      that does not call any other functions.)  The default is
!      `-mno-apcs-leaf-frame'.
  
! `-mcallee-super-interworking'
       Gives all externally visible functions in the file being compiled
       an ARM instruction set header which switches to Thumb mode before
!      executing the rest of the function.  This allows these functions
!      to be called from non-interworking code.  This option is not valid
!      in AAPCS configurations because interworking is enabled by default.
  
! `-mcaller-super-interworking'
       Allows calls via function pointers (including virtual functions) to
       execute correctly regardless of whether the target code has been
!      compiled for interworking or not.  There is a small overhead in
!      the cost of executing a function pointer if this option is
!      enabled.  This option is not valid in AAPCS configurations because
       interworking is enabled by default.
  
! `-mtp=NAME'
!      Specify the access model for the thread local storage pointer.
!      The valid models are `soft', which generates calls to
!      `__aeabi_read_tp', `cp15', which fetches the thread pointer from
!      `cp15' directly (supported in the arm6k architecture), and `auto',
       which uses the best available method for the selected processor.
!      The default setting is `auto'.
  
! `-mtls-dialect=DIALECT'
       Specify the dialect to use for accessing thread local storage.  Two
!      DIALECTs are supported--`gnu' and `gnu2'.  The `gnu' dialect
       selects the original GNU scheme for supporting local and global
!      dynamic TLS models.  The `gnu2' dialect selects the GNU descriptor
       scheme, which provides better performance for shared libraries.
       The GNU descriptor scheme is compatible with the original scheme,
       but does require new assembler, linker and library support.
!      Initial and local exec TLS models are unaffected by this option
!      and always use the original scheme.
  
! `-mword-relocations'
       Only generate absolute relocations on word-sized values (i.e.
       R_ARM_ABS32).  This is enabled by default on targets (uClinux,
       SymbianOS) where the runtime loader imposes this restriction, and
!      when `-fpic' or `-fPIC' is specified.
  
! `-mfix-cortex-m3-ldrd'
!      Some Cortex-M3 cores can cause data corruption when `ldrd'
       instructions with overlapping destination and base registers are
       used.  This option avoids generating these instructions.  This
!      option is enabled by default when `-mcpu=cortex-m3' is specified.
  
! `-munaligned-access'
! `-mno-unaligned-access'
       Enables (or disables) reading and writing of 16- and 32- bit values
       from addresses that are not 16- or 32- bit aligned.  By default
       unaligned access is disabled for all pre-ARMv6 and all ARMv6-M
--- 13516,13599 ----
                     sub     fp, ip, #4
  
       When performing a stack backtrace, code can inspect the value of
!      'pc' stored at 'fp + 0'.  If the trace function then looks at
!      location 'pc - 12' and the top 8 bits are set, then we know that
       there is a function name embedded immediately preceding this
!      location and has length '((pc[-3]) & 0xff000000)'.
! 
! '-mthumb'
! '-marm'
  
       Select between generating code that executes in ARM and Thumb
       states.  The default for most configurations is to generate code
       that executes in ARM state, but the default can be changed by
!      configuring GCC with the '--with-mode='STATE configure option.
  
       You can also override the ARM and Thumb mode for each function by
!      using the 'target("thumb")' and 'target("arm")' function attributes
       (*note ARM Function Attributes::) or pragmas (*note Function
       Specific Option Pragmas::).
  
! '-mtpcs-frame'
       Generate a stack frame that is compliant with the Thumb Procedure
       Call Standard for all non-leaf functions.  (A leaf function is one
       that does not call any other functions.)  The default is
!      '-mno-tpcs-frame'.
  
! '-mtpcs-leaf-frame'
       Generate a stack frame that is compliant with the Thumb Procedure
!      Call Standard for all leaf functions.  (A leaf function is one that
!      does not call any other functions.)  The default is
!      '-mno-apcs-leaf-frame'.
  
! '-mcallee-super-interworking'
       Gives all externally visible functions in the file being compiled
       an ARM instruction set header which switches to Thumb mode before
!      executing the rest of the function.  This allows these functions to
!      be called from non-interworking code.  This option is not valid in
!      AAPCS configurations because interworking is enabled by default.
  
! '-mcaller-super-interworking'
       Allows calls via function pointers (including virtual functions) to
       execute correctly regardless of whether the target code has been
!      compiled for interworking or not.  There is a small overhead in the
!      cost of executing a function pointer if this option is enabled.
!      This option is not valid in AAPCS configurations because
       interworking is enabled by default.
  
! '-mtp=NAME'
!      Specify the access model for the thread local storage pointer.  The
!      valid models are 'soft', which generates calls to
!      '__aeabi_read_tp', 'cp15', which fetches the thread pointer from
!      'cp15' directly (supported in the arm6k architecture), and 'auto',
       which uses the best available method for the selected processor.
!      The default setting is 'auto'.
  
! '-mtls-dialect=DIALECT'
       Specify the dialect to use for accessing thread local storage.  Two
!      DIALECTs are supported--'gnu' and 'gnu2'.  The 'gnu' dialect
       selects the original GNU scheme for supporting local and global
!      dynamic TLS models.  The 'gnu2' dialect selects the GNU descriptor
       scheme, which provides better performance for shared libraries.
       The GNU descriptor scheme is compatible with the original scheme,
       but does require new assembler, linker and library support.
!      Initial and local exec TLS models are unaffected by this option and
!      always use the original scheme.
  
! '-mword-relocations'
       Only generate absolute relocations on word-sized values (i.e.
       R_ARM_ABS32).  This is enabled by default on targets (uClinux,
       SymbianOS) where the runtime loader imposes this restriction, and
!      when '-fpic' or '-fPIC' is specified.
  
! '-mfix-cortex-m3-ldrd'
!      Some Cortex-M3 cores can cause data corruption when 'ldrd'
       instructions with overlapping destination and base registers are
       used.  This option avoids generating these instructions.  This
!      option is enabled by default when '-mcpu=cortex-m3' is specified.
  
! '-munaligned-access'
! '-mno-unaligned-access'
       Enables (or disables) reading and writing of 16- and 32- bit values
       from addresses that are not 16- or 32- bit aligned.  By default
       unaligned access is disabled for all pre-ARMv6 and all ARMv6-M
*************** These `-m' options are defined for the A
*** 13703,13737 ****
       unaligned access is not enabled then words in packed data
       structures are accessed a byte at a time.
  
!      The ARM attribute `Tag_CPU_unaligned_access' is set in the
       generated object file to either true or false, depending upon the
       setting of this option.  If unaligned access is enabled then the
!      preprocessor symbol `__ARM_FEATURE_UNALIGNED' is also defined.
  
! `-mneon-for-64bits'
!      Enables using Neon to handle scalar 64-bits operations. This is
       disabled by default since the cost of moving data from core
       registers to Neon is high.
  
! `-mslow-flash-data'
       Assume loading data from flash is slower than fetching instruction.
       Therefore literal load is minimized for better performance.  This
!      option is only supported when compiling for ARMv7 M-profile and
!      off by default.
  
! `-masm-syntax-unified'
       Assume inline assembler is using unified asm syntax.  The default
       is currently off which implies divided syntax.  This option has no
!      impact on Thumb2. However, this may change in future releases of
!      GCC.  Divided syntax should be considered deprecated.
  
! `-mrestrict-it'
       Restricts generation of IT blocks to conform to the rules of ARMv8.
       IT blocks can only contain a single 16-bit instruction from a
!      select set of instructions. This option is on by default for ARMv8
       Thumb mode.
  
! `-mprint-tune-info'
       Print CPU tuning information as comment in assembler file.  This is
       an option used only for regression testing of the compiler and not
       intended for ordinary use in compiling code.  This option is
--- 13601,13635 ----
       unaligned access is not enabled then words in packed data
       structures are accessed a byte at a time.
  
!      The ARM attribute 'Tag_CPU_unaligned_access' is set in the
       generated object file to either true or false, depending upon the
       setting of this option.  If unaligned access is enabled then the
!      preprocessor symbol '__ARM_FEATURE_UNALIGNED' is also defined.
  
! '-mneon-for-64bits'
!      Enables using Neon to handle scalar 64-bits operations.  This is
       disabled by default since the cost of moving data from core
       registers to Neon is high.
  
! '-mslow-flash-data'
       Assume loading data from flash is slower than fetching instruction.
       Therefore literal load is minimized for better performance.  This
!      option is only supported when compiling for ARMv7 M-profile and off
!      by default.
  
! '-masm-syntax-unified'
       Assume inline assembler is using unified asm syntax.  The default
       is currently off which implies divided syntax.  This option has no
!      impact on Thumb2.  However, this may change in future releases of
!      GCC. Divided syntax should be considered deprecated.
  
! '-mrestrict-it'
       Restricts generation of IT blocks to conform to the rules of ARMv8.
       IT blocks can only contain a single 16-bit instruction from a
!      select set of instructions.  This option is on by default for ARMv8
       Thumb mode.
  
! '-mprint-tune-info'
       Print CPU tuning information as comment in assembler file.  This is
       an option used only for regression testing of the compiler and not
       intended for ordinary use in compiling code.  This option is
*************** File: gcc.info,  Node: AVR Options,  Nex
*** 13745,13890 ****
  
  These options are defined for AVR implementations:
  
! `-mmcu=MCU'
       Specify Atmel AVR instruction set architectures (ISA) or MCU type.
  
!      The default for this option is `avr2'.
  
       GCC supports the following AVR devices and ISAs:
  
!     `avr2'
            "Classic" devices with up to 8 KiB of program memory.
!           MCU = `attiny22', `attiny26', `at90c8534', `at90s2313',
!           `at90s2323', `at90s2333', `at90s2343', `at90s4414',
!           `at90s4433', `at90s4434', `at90s8515', `at90s8535'.
  
!     `avr25'
            "Classic" devices with up to 8 KiB of program memory and with
!           the `MOVW' instruction.
!           MCU = `ata5272', `ata6616c', `attiny13', `attiny13a',
!           `attiny2313', `attiny2313a', `attiny24', `attiny24a',
!           `attiny25', `attiny261', `attiny261a', `attiny43u',
!           `attiny4313', `attiny44', `attiny44a', `attiny441',
!           `attiny45', `attiny461', `attiny461a', `attiny48',
!           `attiny828', `attiny84', `attiny84a', `attiny841',
!           `attiny85', `attiny861', `attiny861a', `attiny87',
!           `attiny88', `at86rf401'.
  
!     `avr3'
!           "Classic" devices with 16 KiB up to 64 KiB of  program memory.
!           MCU = `at43usb355', `at76c711'.
  
!     `avr31'
            "Classic" devices with 128 KiB of program memory.
!           MCU = `atmega103', `at43usb320'.
  
!     `avr35'
            "Classic" devices with 16 KiB up to 64 KiB of program memory
!           and with the `MOVW' instruction.
!           MCU = `ata5505', `ata6617c', `ata664251', `atmega16u2',
!           `atmega32u2', `atmega8u2', `attiny1634', `attiny167',
!           `at90usb162', `at90usb82'.
  
!     `avr4'
            "Enhanced" devices with up to 8 KiB of program memory.
!           MCU = `ata6285', `ata6286', `ata6289', `ata6612c',
!           `atmega48', `atmega48a', `atmega48p', `atmega48pa',
!           `atmega48pb', `atmega8', `atmega8a', `atmega8hva',
!           `atmega8515', `atmega8535', `atmega88', `atmega88a',
!           `atmega88p', `atmega88pa', `atmega88pb', `at90pwm1',
!           `at90pwm2', `at90pwm2b', `at90pwm3', `at90pwm3b', `at90pwm81'.
  
!     `avr5'
            "Enhanced" devices with 16 KiB up to 64 KiB of program memory.
-           MCU = `ata5702m322', `ata5782', `ata5790', `ata5790n',
-           `ata5791', `ata5795', `ata5831', `ata6613c', `ata6614q',
-           `ata8210', `ata8510', `atmega16', `atmega16a', `atmega16hva',
-           `atmega16hva2', `atmega16hvb', `atmega16hvbrevb',
-           `atmega16m1', `atmega16u4', `atmega161', `atmega162',
-           `atmega163', `atmega164a', `atmega164p', `atmega164pa',
-           `atmega165', `atmega165a', `atmega165p', `atmega165pa',
-           `atmega168', `atmega168a', `atmega168p', `atmega168pa',
-           `atmega168pb', `atmega169', `atmega169a', `atmega169p',
-           `atmega169pa', `atmega32', `atmega32a', `atmega32c1',
-           `atmega32hvb', `atmega32hvbrevb', `atmega32m1', `atmega32u4',
-           `atmega32u6', `atmega323', `atmega324a', `atmega324p',
-           `atmega324pa', `atmega325', `atmega325a', `atmega325p',
-           `atmega325pa', `atmega3250', `atmega3250a', `atmega3250p',
-           `atmega3250pa', `atmega328', `atmega328p', `atmega328pb',
-           `atmega329', `atmega329a', `atmega329p', `atmega329pa',
-           `atmega3290', `atmega3290a', `atmega3290p', `atmega3290pa',
-           `atmega406', `atmega64', `atmega64a', `atmega64c1',
-           `atmega64hve', `atmega64hve2', `atmega64m1', `atmega64rfr2',
-           `atmega640', `atmega644', `atmega644a', `atmega644p',
-           `atmega644pa', `atmega644rfr2', `atmega645', `atmega645a',
-           `atmega645p', `atmega6450', `atmega6450a', `atmega6450p',
-           `atmega649', `atmega649a', `atmega649p', `atmega6490',
-           `atmega6490a', `atmega6490p', `at90can32', `at90can64',
-           `at90pwm161', `at90pwm216', `at90pwm316', `at90scr100',
-           `at90usb646', `at90usb647', `at94k', `m3000'.
  
!     `avr51'
            "Enhanced" devices with 128 KiB of program memory.
!           MCU = `atmega128', `atmega128a', `atmega128rfa1',
!           `atmega128rfr2', `atmega1280', `atmega1281', `atmega1284',
!           `atmega1284p', `atmega1284rfr2', `at90can128', `at90usb1286',
!           `at90usb1287'.
  
!     `avr6'
!           "Enhanced" devices with 3-byte PC, i.e. with more than
!           128 KiB of program memory.
!           MCU = `atmega256rfr2', `atmega2560', `atmega2561',
!           `atmega2564rfr2'.
  
!     `avrxmega2'
            "XMEGA" devices with more than 8 KiB and up to 64 KiB of
            program memory.
!           MCU = `atxmega16a4', `atxmega16a4u', `atxmega16c4',
!           `atxmega16d4', `atxmega16e5', `atxmega32a4', `atxmega32a4u',
!           `atxmega32c3', `atxmega32c4', `atxmega32d3', `atxmega32d4',
!           `atxmega32e5', `atxmega8e5'.
  
!     `avrxmega4'
            "XMEGA" devices with more than 64 KiB and up to 128 KiB of
            program memory.
!           MCU = `atxmega64a3', `atxmega64a3u', `atxmega64a4u',
!           `atxmega64b1', `atxmega64b3', `atxmega64c3', `atxmega64d3',
!           `atxmega64d4'.
  
!     `avrxmega5'
            "XMEGA" devices with more than 64 KiB and up to 128 KiB of
            program memory and more than 64 KiB of RAM.
!           MCU = `atxmega64a1', `atxmega64a1u'.
  
!     `avrxmega6'
            "XMEGA" devices with more than 128 KiB of program memory.
!           MCU = `atxmega128a3', `atxmega128a3u', `atxmega128b1',
!           `atxmega128b3', `atxmega128c3', `atxmega128d3',
!           `atxmega128d4', `atxmega192a3', `atxmega192a3u',
!           `atxmega192c3', `atxmega192d3', `atxmega256a3',
!           `atxmega256a3b', `atxmega256a3bu', `atxmega256a3u',
!           `atxmega256c3', `atxmega256d3', `atxmega384c3',
!           `atxmega384d3'.
  
!     `avrxmega7'
            "XMEGA" devices with more than 128 KiB of program memory and
            more than 64 KiB of RAM.
!           MCU = `atxmega128a1', `atxmega128a1u', `atxmega128a4u'.
  
!     `avrtiny'
            "TINY" Tiny core devices with 512 B up to 4 KiB of program
            memory.
!           MCU = `attiny10', `attiny20', `attiny4', `attiny40',
!           `attiny5', `attiny9'.
  
!     `avr1'
            This ISA is implemented by the minimal AVR core and supported
            for assembler only.
!           MCU = `attiny11', `attiny12', `attiny15', `attiny28',
!           `at90s1200'.
! 
  
! `-maccumulate-args'
       Accumulate outgoing function arguments and acquire/release the
       needed stack space for outgoing function arguments once in function
       prologue/epilogue.  Without this option, outgoing arguments are
--- 13643,13788 ----
  
  These options are defined for AVR implementations:
  
! '-mmcu=MCU'
       Specify Atmel AVR instruction set architectures (ISA) or MCU type.
  
!      The default for this option is 'avr2'.
  
       GCC supports the following AVR devices and ISAs:
  
!      'avr2'
            "Classic" devices with up to 8 KiB of program memory.
!           MCU = 'attiny22', 'attiny26', 'at90c8534', 'at90s2313',
!           'at90s2323', 'at90s2333', 'at90s2343', 'at90s4414',
!           'at90s4433', 'at90s4434', 'at90s8515', 'at90s8535'.
  
!      'avr25'
            "Classic" devices with up to 8 KiB of program memory and with
!           the 'MOVW' instruction.
!           MCU = 'ata5272', 'ata6616c', 'attiny13', 'attiny13a',
!           'attiny2313', 'attiny2313a', 'attiny24', 'attiny24a',
!           'attiny25', 'attiny261', 'attiny261a', 'attiny43u',
!           'attiny4313', 'attiny44', 'attiny44a', 'attiny441',
!           'attiny45', 'attiny461', 'attiny461a', 'attiny48',
!           'attiny828', 'attiny84', 'attiny84a', 'attiny841', 'attiny85',
!           'attiny861', 'attiny861a', 'attiny87', 'attiny88',
!           'at86rf401'.
  
!      'avr3'
!           "Classic" devices with 16 KiB up to 64 KiB of program memory.
!           MCU = 'at43usb355', 'at76c711'.
  
!      'avr31'
            "Classic" devices with 128 KiB of program memory.
!           MCU = 'atmega103', 'at43usb320'.
  
!      'avr35'
            "Classic" devices with 16 KiB up to 64 KiB of program memory
!           and with the 'MOVW' instruction.
!           MCU = 'ata5505', 'ata6617c', 'ata664251', 'atmega16u2',
!           'atmega32u2', 'atmega8u2', 'attiny1634', 'attiny167',
!           'at90usb162', 'at90usb82'.
  
!      'avr4'
            "Enhanced" devices with up to 8 KiB of program memory.
!           MCU = 'ata6285', 'ata6286', 'ata6289', 'ata6612c', 'atmega48',
!           'atmega48a', 'atmega48p', 'atmega48pa', 'atmega48pb',
!           'atmega8', 'atmega8a', 'atmega8hva', 'atmega8515',
!           'atmega8535', 'atmega88', 'atmega88a', 'atmega88p',
!           'atmega88pa', 'atmega88pb', 'at90pwm1', 'at90pwm2',
!           'at90pwm2b', 'at90pwm3', 'at90pwm3b', 'at90pwm81'.
  
!      'avr5'
            "Enhanced" devices with 16 KiB up to 64 KiB of program memory.
  
!           MCU = 'ata5702m322', 'ata5782', 'ata5790', 'ata5790n',
!           'ata5791', 'ata5795', 'ata5831', 'ata6613c', 'ata6614q',
!           'ata8210', 'ata8510', 'atmega16', 'atmega16a', 'atmega16hva',
!           'atmega16hva2', 'atmega16hvb', 'atmega16hvbrevb',
!           'atmega16m1', 'atmega16u4', 'atmega161', 'atmega162',
!           'atmega163', 'atmega164a', 'atmega164p', 'atmega164pa',
!           'atmega165', 'atmega165a', 'atmega165p', 'atmega165pa',
!           'atmega168', 'atmega168a', 'atmega168p', 'atmega168pa',
!           'atmega168pb', 'atmega169', 'atmega169a', 'atmega169p',
!           'atmega169pa', 'atmega32', 'atmega32a', 'atmega32c1',
!           'atmega32hvb', 'atmega32hvbrevb', 'atmega32m1', 'atmega32u4',
!           'atmega32u6', 'atmega323', 'atmega324a', 'atmega324p',
!           'atmega324pa', 'atmega325', 'atmega325a', 'atmega325p',
!           'atmega325pa', 'atmega3250', 'atmega3250a', 'atmega3250p',
!           'atmega3250pa', 'atmega328', 'atmega328p', 'atmega328pb',
!           'atmega329', 'atmega329a', 'atmega329p', 'atmega329pa',
!           'atmega3290', 'atmega3290a', 'atmega3290p', 'atmega3290pa',
!           'atmega406', 'atmega64', 'atmega64a', 'atmega64c1',
!           'atmega64hve', 'atmega64hve2', 'atmega64m1', 'atmega64rfr2',
!           'atmega640', 'atmega644', 'atmega644a', 'atmega644p',
!           'atmega644pa', 'atmega644rfr2', 'atmega645', 'atmega645a',
!           'atmega645p', 'atmega6450', 'atmega6450a', 'atmega6450p',
!           'atmega649', 'atmega649a', 'atmega649p', 'atmega6490',
!           'atmega6490a', 'atmega6490p', 'at90can32', 'at90can64',
!           'at90pwm161', 'at90pwm216', 'at90pwm316', 'at90scr100',
!           'at90usb646', 'at90usb647', 'at94k', 'm3000'.
! 
!      'avr51'
            "Enhanced" devices with 128 KiB of program memory.
!           MCU = 'atmega128', 'atmega128a', 'atmega128rfa1',
!           'atmega128rfr2', 'atmega1280', 'atmega1281', 'atmega1284',
!           'atmega1284p', 'atmega1284rfr2', 'at90can128', 'at90usb1286',
!           'at90usb1287'.
  
!      'avr6'
!           "Enhanced" devices with 3-byte PC, i.e. with more than 128 KiB
!           of program memory.
!           MCU = 'atmega256rfr2', 'atmega2560', 'atmega2561',
!           'atmega2564rfr2'.
  
!      'avrxmega2'
            "XMEGA" devices with more than 8 KiB and up to 64 KiB of
            program memory.
!           MCU = 'atxmega16a4', 'atxmega16a4u', 'atxmega16c4',
!           'atxmega16d4', 'atxmega16e5', 'atxmega32a4', 'atxmega32a4u',
!           'atxmega32c3', 'atxmega32c4', 'atxmega32d3', 'atxmega32d4',
!           'atxmega32e5', 'atxmega8e5'.
  
!      'avrxmega4'
            "XMEGA" devices with more than 64 KiB and up to 128 KiB of
            program memory.
!           MCU = 'atxmega64a3', 'atxmega64a3u', 'atxmega64a4u',
!           'atxmega64b1', 'atxmega64b3', 'atxmega64c3', 'atxmega64d3',
!           'atxmega64d4'.
  
!      'avrxmega5'
            "XMEGA" devices with more than 64 KiB and up to 128 KiB of
            program memory and more than 64 KiB of RAM.
!           MCU = 'atxmega64a1', 'atxmega64a1u'.
  
!      'avrxmega6'
            "XMEGA" devices with more than 128 KiB of program memory.
!           MCU = 'atxmega128a3', 'atxmega128a3u', 'atxmega128b1',
!           'atxmega128b3', 'atxmega128c3', 'atxmega128d3',
!           'atxmega128d4', 'atxmega192a3', 'atxmega192a3u',
!           'atxmega192c3', 'atxmega192d3', 'atxmega256a3',
!           'atxmega256a3b', 'atxmega256a3bu', 'atxmega256a3u',
!           'atxmega256c3', 'atxmega256d3', 'atxmega384c3',
!           'atxmega384d3'.
  
!      'avrxmega7'
            "XMEGA" devices with more than 128 KiB of program memory and
            more than 64 KiB of RAM.
!           MCU = 'atxmega128a1', 'atxmega128a1u', 'atxmega128a4u'.
  
!      'avrtiny'
            "TINY" Tiny core devices with 512 B up to 4 KiB of program
            memory.
!           MCU = 'attiny10', 'attiny20', 'attiny4', 'attiny40',
!           'attiny5', 'attiny9'.
  
!      'avr1'
            This ISA is implemented by the minimal AVR core and supported
            for assembler only.
!           MCU = 'attiny11', 'attiny12', 'attiny15', 'attiny28',
!           'at90s1200'.
  
! '-maccumulate-args'
       Accumulate outgoing function arguments and acquire/release the
       needed stack space for outgoing function arguments once in function
       prologue/epilogue.  Without this option, outgoing arguments are
*************** These options are defined for AVR implem
*** 13892,13983 ****
  
       Popping the arguments after the function call can be expensive on
       AVR so that accumulating the stack space might lead to smaller
!      executables because arguments need not to be removed from the
!      stack after such a function call.
  
       This option can lead to reduced code size for functions that
       perform several calls to functions that get their arguments on the
       stack like calls to printf-like functions.
  
! `-mbranch-cost=COST'
       Set the branch costs for conditional branch instructions to COST.
!      Reasonable values for COST are small, non-negative integers. The
       default branch cost is 0.
  
! `-mcall-prologues'
       Functions prologues/epilogues are expanded as calls to appropriate
       subroutines.  Code size is smaller.
  
! `-mint8'
!      Assume `int' to be 8-bit integer.  This affects the sizes of all
!      types: a `char' is 1 byte, an `int' is 1 byte, a `long' is 2 bytes,
!      and `long long' is 4 bytes.  Please note that this option does not
       conform to the C standards, but it results in smaller code size.
  
! `-mn-flash=NUM'
       Assume that the flash memory has a size of NUM times 64 KiB.
  
! `-mno-interrupts'
       Generated code is not compatible with hardware interrupts.  Code
       size is smaller.
  
! `-mrelax'
!      Try to replace `CALL' resp. `JMP' instruction by the shorter
!      `RCALL' resp. `RJMP' instruction if applicable.  Setting `-mrelax'
!      just adds the `--mlink-relax' option to the assembler's command
!      line and the `--relax' option to the linker's command line.
  
       Jump relaxing is performed by the linker because jump offsets are
!      not known before code is located. Therefore, the assembler code
       generated by the compiler is the same, but the instructions in the
       executable may differ from instructions in the assembler code.
  
       Relaxing must be turned on if linker stubs are needed, see the
!      section on `EIND' and linker stubs below.
  
! `-mrmw'
       Assume that the device supports the Read-Modify-Write instructions
!      `XCH', `LAC', `LAS' and `LAT'.
  
! `-msp8'
       Treat the stack pointer register as an 8-bit register, i.e. assume
       the high byte of the stack pointer is zero.  In general, you don't
       need to set this option by hand.
  
       This option is used internally by the compiler to select and build
!      multilibs for architectures `avr2' and `avr25'.  These
!      architectures mix devices with and without `SPH'.  For any setting
!      other than `-mmcu=avr2' or `-mmcu=avr25' the compiler driver adds
       or removes this option from the compiler proper's command line,
       because the compiler then knows if the device or architecture has
!      an 8-bit stack pointer and thus no `SPH' register or not.
  
! `-mstrict-X'
!      Use address register `X' in a way proposed by the hardware.  This
!      means that `X' is only used in indirect, post-increment or
       pre-decrement addressing.
  
!      Without this option, the `X' register may be used in the same way
!      as `Y' or `Z' which then is emulated by additional instructions.
!      For example, loading a value with `X+const' addressing with a
!      small non-negative `const < 64' to a register RN is performed as
  
            adiw r26, const   ; X += const
            ld   RN, X        ; RN = *X
            sbiw r26, const   ; X -= const
  
! `-mtiny-stack'
       Only change the lower 8 bits of the stack pointer.
  
! `-nodevicelib'
!      Don't link against AVR-LibC's device specific library `libdev.a'.
  
! `-Waddr-space-convert'
       Warn about conversions between address spaces in the case where the
       resulting address space is not contained in the incoming address
       space.
  
! 3.18.5.1 `EIND' and Devices with More Than 128 Ki Bytes of Flash
  ................................................................
  
  Pointers in the implementation are 16 bits wide.  The address of a
--- 13790,13885 ----
  
       Popping the arguments after the function call can be expensive on
       AVR so that accumulating the stack space might lead to smaller
!      executables because arguments need not to be removed from the stack
!      after such a function call.
  
       This option can lead to reduced code size for functions that
       perform several calls to functions that get their arguments on the
       stack like calls to printf-like functions.
  
! '-mbranch-cost=COST'
       Set the branch costs for conditional branch instructions to COST.
!      Reasonable values for COST are small, non-negative integers.  The
       default branch cost is 0.
  
! '-mcall-prologues'
       Functions prologues/epilogues are expanded as calls to appropriate
       subroutines.  Code size is smaller.
  
! '-mint8'
!      Assume 'int' to be 8-bit integer.  This affects the sizes of all
!      types: a 'char' is 1 byte, an 'int' is 1 byte, a 'long' is 2 bytes,
!      and 'long long' is 4 bytes.  Please note that this option does not
       conform to the C standards, but it results in smaller code size.
  
! '-mn-flash=NUM'
       Assume that the flash memory has a size of NUM times 64 KiB.
  
! '-mno-interrupts'
       Generated code is not compatible with hardware interrupts.  Code
       size is smaller.
  
! '-mrelax'
!      Try to replace 'CALL' resp. 'JMP' instruction by the shorter
!      'RCALL' resp. 'RJMP' instruction if applicable.  Setting '-mrelax'
!      just adds the '--mlink-relax' option to the assembler's command
!      line and the '--relax' option to the linker's command line.
  
       Jump relaxing is performed by the linker because jump offsets are
!      not known before code is located.  Therefore, the assembler code
       generated by the compiler is the same, but the instructions in the
       executable may differ from instructions in the assembler code.
  
       Relaxing must be turned on if linker stubs are needed, see the
!      section on 'EIND' and linker stubs below.
  
! '-mrmw'
       Assume that the device supports the Read-Modify-Write instructions
!      'XCH', 'LAC', 'LAS' and 'LAT'.
  
! '-msp8'
       Treat the stack pointer register as an 8-bit register, i.e. assume
       the high byte of the stack pointer is zero.  In general, you don't
       need to set this option by hand.
  
       This option is used internally by the compiler to select and build
!      multilibs for architectures 'avr2' and 'avr25'.  These
!      architectures mix devices with and without 'SPH'.  For any setting
!      other than '-mmcu=avr2' or '-mmcu=avr25' the compiler driver adds
       or removes this option from the compiler proper's command line,
       because the compiler then knows if the device or architecture has
!      an 8-bit stack pointer and thus no 'SPH' register or not.
  
! '-mstrict-X'
!      Use address register 'X' in a way proposed by the hardware.  This
!      means that 'X' is only used in indirect, post-increment or
       pre-decrement addressing.
  
!      Without this option, the 'X' register may be used in the same way
!      as 'Y' or 'Z' which then is emulated by additional instructions.
!      For example, loading a value with 'X+const' addressing with a small
!      non-negative 'const < 64' to a register RN is performed as
  
            adiw r26, const   ; X += const
            ld   RN, X        ; RN = *X
            sbiw r26, const   ; X -= const
  
! '-mtiny-stack'
       Only change the lower 8 bits of the stack pointer.
  
! '-nodevicelib'
!      Don't link against AVR-LibC's device specific library 'lib<mcu>.a'.
  
! '-Waddr-space-convert'
       Warn about conversions between address spaces in the case where the
       resulting address space is not contained in the incoming address
       space.
  
! '-Wmisspelled-isr'
!      Warn if the ISR is misspelled, i.e.  without '__vector' prefix.
!      Enabled by default.
! 
! 3.18.5.1 'EIND' and Devices with More Than 128 Ki Bytes of Flash
  ................................................................
  
  Pointers in the implementation are 16 bits wide.  The address of a
*************** and calls can target any code address in
*** 13986,14035 ****
  
   In order to facilitate indirect jump on devices with more than 128 Ki
  bytes of program memory space, there is a special function register
! called `EIND' that serves as most significant part of the target address
! when `EICALL' or `EIJMP' instructions are used.
  
!  Indirect jumps and calls on these devices are handled as follows by
! the compiler and are subject to some limitations:
  
!    * The compiler never sets `EIND'.
  
!    * The compiler uses `EIND' implicitly in `EICALL'/`EIJMP'
!      instructions or might read `EIND' directly in order to emulate an
!      indirect call/jump by means of a `RET' instruction.
  
!    * The compiler assumes that `EIND' never changes during the startup
!      code or during the application. In particular, `EIND' is not
       saved/restored in function or interrupt service routine
       prologue/epilogue.
  
     * For indirect calls to functions and computed goto, the linker
!      generates _stubs_. Stubs are jump pads sometimes also called
!      _trampolines_. Thus, the indirect call/jump jumps to such a stub.
       The stub contains a direct jump to the desired address.
  
     * Linker relaxation must be turned on so that the linker generates
!      the stubs correctly in all situations. See the compiler option
!      `-mrelax' and the linker option `--relax'.  There are corner cases
       where the linker is supposed to generate stubs but aborts without
       relaxation and without a helpful error message.
  
!    * The default linker script is arranged for code with `EIND = 0'.
!      If code is supposed to work for a setup with `EIND != 0', a custom
       linker script has to be used in order to place the sections whose
!      name start with `.trampolines' into the segment where `EIND'
!      points to.
  
!    * The startup code from libgcc never sets `EIND'.  Notice that
!      startup code is a blend of code from libgcc and AVR-LibC.  For the
!      impact of AVR-LibC on `EIND', see the
       AVR-LibC user manual (http://nongnu.org/avr-libc/user-manual/).
  
!    * It is legitimate for user-specific startup code to set up `EIND'
       early, for example by means of initialization code located in
!      section `.init3'. Such code runs prior to general startup code
       that initializes RAM and calls constructors, but after the bit of
!      startup code from AVR-LibC that sets `EIND' to the segment where
       the vector table is located.
            #include <avr/io.h>
  
--- 13888,13937 ----
  
   In order to facilitate indirect jump on devices with more than 128 Ki
  bytes of program memory space, there is a special function register
! called 'EIND' that serves as most significant part of the target address
! when 'EICALL' or 'EIJMP' instructions are used.
  
!  Indirect jumps and calls on these devices are handled as follows by the
! compiler and are subject to some limitations:
  
!    * The compiler never sets 'EIND'.
  
!    * The compiler uses 'EIND' implicitly in 'EICALL'/'EIJMP'
!      instructions or might read 'EIND' directly in order to emulate an
!      indirect call/jump by means of a 'RET' instruction.
  
!    * The compiler assumes that 'EIND' never changes during the startup
!      code or during the application.  In particular, 'EIND' is not
       saved/restored in function or interrupt service routine
       prologue/epilogue.
  
     * For indirect calls to functions and computed goto, the linker
!      generates _stubs_.  Stubs are jump pads sometimes also called
!      _trampolines_.  Thus, the indirect call/jump jumps to such a stub.
       The stub contains a direct jump to the desired address.
  
     * Linker relaxation must be turned on so that the linker generates
!      the stubs correctly in all situations.  See the compiler option
!      '-mrelax' and the linker option '--relax'.  There are corner cases
       where the linker is supposed to generate stubs but aborts without
       relaxation and without a helpful error message.
  
!    * The default linker script is arranged for code with 'EIND = 0'.  If
!      code is supposed to work for a setup with 'EIND != 0', a custom
       linker script has to be used in order to place the sections whose
!      name start with '.trampolines' into the segment where 'EIND' points
!      to.
  
!    * The startup code from libgcc never sets 'EIND'.  Notice that
!      startup code is a blend of code from libgcc and AVR-LibC. For the
!      impact of AVR-LibC on 'EIND', see the
       AVR-LibC user manual (http://nongnu.org/avr-libc/user-manual/).
  
!    * It is legitimate for user-specific startup code to set up 'EIND'
       early, for example by means of initialization code located in
!      section '.init3'.  Such code runs prior to general startup code
       that initializes RAM and calls constructors, but after the bit of
!      startup code from AVR-LibC that sets 'EIND' to the segment where
       the vector table is located.
            #include <avr/io.h>
  
*************** the compiler and are subject to some lim
*** 14041,14075 ****
                              "out %i0,r24" :: "n" (&EIND) : "r24","memory");
            }
  
!      The `__trampolines_start' symbol is defined in the linker script.
  
     * Stubs are generated automatically by the linker if the following
       two conditions are met:
!         - The address of a label is taken by means of the `gs' modifier
            (short for _generate stubs_) like so:
                 LDI r24, lo8(gs(FUNC))
                 LDI r25, hi8(gs(FUNC))
- 
          - The final location of that label is in a code segment
            _outside_ the segment where the stubs are located.
  
!    * The compiler emits such `gs' modifiers for code labels in the
       following situations:
          - Taking address of a function or code label.
- 
          - Computed goto.
! 
!         - If prologue-save function is used, see `-mcall-prologues'
            command-line option.
! 
!         - Switch/case dispatch tables. If you do not want such dispatch
!           tables you can specify the `-fno-jump-tables' command-line
            option.
- 
          - C and C++ constructors/destructors called during
            startup/shutdown.
! 
!         - If the tools hit a `gs()' modifier explained above.
  
     * Jumping to non-symbolic addresses like so is _not_ supported:
  
--- 13943,13972 ----
                              "out %i0,r24" :: "n" (&EIND) : "r24","memory");
            }
  
!      The '__trampolines_start' symbol is defined in the linker script.
  
     * Stubs are generated automatically by the linker if the following
       two conditions are met:
! 
!         - The address of a label is taken by means of the 'gs' modifier
            (short for _generate stubs_) like so:
                 LDI r24, lo8(gs(FUNC))
                 LDI r25, hi8(gs(FUNC))
          - The final location of that label is in a code segment
            _outside_ the segment where the stubs are located.
  
!    * The compiler emits such 'gs' modifiers for code labels in the
       following situations:
          - Taking address of a function or code label.
          - Computed goto.
!         - If prologue-save function is used, see '-mcall-prologues'
            command-line option.
!         - Switch/case dispatch tables.  If you do not want such dispatch
!           tables you can specify the '-fno-jump-tables' command-line
            option.
          - C and C++ constructors/destructors called during
            startup/shutdown.
!         - If the tools hit a 'gs()' modifier explained above.
  
     * Jumping to non-symbolic addresses like so is _not_ supported:
  
*************** the compiler and are subject to some lim
*** 14080,14086 ****
            }
  
       Instead, a stub has to be set up, i.e. the function has to be
!      called through a symbol (`func_4' in the example):
  
            int main (void)
            {
--- 13977,13983 ----
            }
  
       Instead, a stub has to be set up, i.e. the function has to be
!      called through a symbol ('func_4' in the example):
  
            int main (void)
            {
*************** the compiler and are subject to some lim
*** 14090,14129 ****
                return func_4();
            }
  
!      and the application be linked with `-Wl,--defsym,func_4=0x4'.
!      Alternatively, `func_4' can be defined in the linker script.
  
! 3.18.5.2 Handling of the `RAMPD', `RAMPX', `RAMPY' and `RAMPZ' Special Function Registers
  .........................................................................................
  
  Some AVR devices support memories larger than the 64 KiB range that can
  be accessed with 16-bit pointers.  To access memory locations outside
! this 64 KiB range, the contentent of a `RAMP' register is used as high
! part of the address: The `X', `Y', `Z' address register is concatenated
! with the `RAMPX', `RAMPY', `RAMPZ' special function register,
! respectively, to get a wide address. Similarly, `RAMPD' is used
  together with direct addressing.
  
!    * The startup code initializes the `RAMP' special function registers
       with zero.
  
     * If a *note named address space: AVR Named Address Spaces. other
!      than generic or `__flash' is used, then `RAMPZ' is set as needed
       before the operation.
  
     * If the device supports RAM larger than 64 KiB and the compiler
!      needs to change `RAMPZ' to accomplish an operation, `RAMPZ' is
       reset to zero after the operation.
  
!    * If the device comes with a specific `RAMP' register, the ISR
       prologue/epilogue saves/restores that SFR and initializes it with
       zero in case the ISR code might (implicitly) use it.
  
!    * RAM larger than 64 KiB is not supported by GCC for AVR targets.
!      If you use inline assembler to read from locations outside the
!      16-bit address range and change one of the `RAMP' registers, you
!      must reset it to zero after the access.
! 
  
  3.18.5.3 AVR Built-in Macros
  ............................
--- 13987,14025 ----
                return func_4();
            }
  
!      and the application be linked with '-Wl,--defsym,func_4=0x4'.
!      Alternatively, 'func_4' can be defined in the linker script.
  
! 3.18.5.2 Handling of the 'RAMPD', 'RAMPX', 'RAMPY' and 'RAMPZ' Special Function Registers
  .........................................................................................
  
  Some AVR devices support memories larger than the 64 KiB range that can
  be accessed with 16-bit pointers.  To access memory locations outside
! this 64 KiB range, the contentent of a 'RAMP' register is used as high
! part of the address: The 'X', 'Y', 'Z' address register is concatenated
! with the 'RAMPX', 'RAMPY', 'RAMPZ' special function register,
! respectively, to get a wide address.  Similarly, 'RAMPD' is used
  together with direct addressing.
  
!    * The startup code initializes the 'RAMP' special function registers
       with zero.
  
     * If a *note named address space: AVR Named Address Spaces. other
!      than generic or '__flash' is used, then 'RAMPZ' is set as needed
       before the operation.
  
     * If the device supports RAM larger than 64 KiB and the compiler
!      needs to change 'RAMPZ' to accomplish an operation, 'RAMPZ' is
       reset to zero after the operation.
  
!    * If the device comes with a specific 'RAMP' register, the ISR
       prologue/epilogue saves/restores that SFR and initializes it with
       zero in case the ISR code might (implicitly) use it.
  
!    * RAM larger than 64 KiB is not supported by GCC for AVR targets.  If
!      you use inline assembler to read from locations outside the 16-bit
!      address range and change one of the 'RAMP' registers, you must
!      reset it to zero after the access.
  
  3.18.5.3 AVR Built-in Macros
  ............................
*************** together with direct addressing.
*** 14131,14261 ****
  GCC defines several built-in macros so that the user code can test for
  the presence or absence of features.  Almost any of the following
  built-in macros are deduced from device capabilities and thus triggered
! by the `-mmcu=' command-line option.
  
   For even more AVR-specific built-in macros see *note AVR Named Address
  Spaces:: and *note AVR Built-in Functions::.
  
! `__AVR_ARCH__'
       Build-in macro that resolves to a decimal number that identifies
!      the architecture and depends on the `-mmcu=MCU' option.  Possible
       values are:
  
!      `2', `25', `3', `31', `35', `4', `5', `51', `6'
  
!      for MCU=`avr2', `avr25', `avr3', `avr31', `avr35', `avr4', `avr5',
!      `avr51', `avr6',
  
       respectively and
  
!      `100', `102', `104', `105', `106', `107'
  
!      for MCU=`avrtiny', `avrxmega2', `avrxmega4', `avrxmega5',
!      `avrxmega6', `avrxmega7', respectively.  If MCU specifies a
!      device, this built-in macro is set accordingly. For example, with
!      `-mmcu=atmega8' the macro is defined to `4'.
  
! `__AVR_DEVICE__'
!      Setting `-mmcu=DEVICE' defines this built-in macro which reflects
!      the device's name. For example, `-mmcu=atmega8' defines the
!      built-in macro `__AVR_ATmega8__', `-mmcu=attiny261a' defines
!      `__AVR_ATtiny261A__', etc.
  
!      The built-in macros' names follow the scheme `__AVR_DEVICE__'
!      where DEVICE is the device name as from the AVR user manual. The
       difference between DEVICE in the built-in macro and DEVICE in
!      `-mmcu=DEVICE' is that the latter is always lowercase.
  
       If DEVICE is not a device but only a core architecture like
!      `avr51', this macro is not defined.
  
! `__AVR_DEVICE_NAME__'
!      Setting `-mmcu=DEVICE' defines this built-in macro to the device's
!      name. For example, with `-mmcu=atmega8' the macro is defined to
!      `atmega8'.
  
       If DEVICE is not a device but only a core architecture like
!      `avr51', this macro is not defined.
  
! `__AVR_XMEGA__'
       The device / architecture belongs to the XMEGA family of devices.
  
! `__AVR_HAVE_ELPM__'
!      The device has the `ELPM' instruction.
  
! `__AVR_HAVE_ELPMX__'
!      The device has the `ELPM RN,Z' and `ELPM RN,Z+' instructions.
  
! `__AVR_HAVE_MOVW__'
!      The device has the `MOVW' instruction to perform 16-bit
       register-register moves.
  
! `__AVR_HAVE_LPMX__'
!      The device has the `LPM RN,Z' and `LPM RN,Z+' instructions.
  
! `__AVR_HAVE_MUL__'
       The device has a hardware multiplier.
  
! `__AVR_HAVE_JMP_CALL__'
!      The device has the `JMP' and `CALL' instructions.  This is the
!      case for devices with at least 16 KiB of program memory.
  
! `__AVR_HAVE_EIJMP_EICALL__'
! `__AVR_3_BYTE_PC__'
!      The device has the `EIJMP' and `EICALL' instructions.  This is the
       case for devices with more than 128 KiB of program memory.  This
       also means that the program counter (PC) is 3 bytes wide.
  
! `__AVR_2_BYTE_PC__'
!      The program counter (PC) is 2 bytes wide. This is the case for
       devices with up to 128 KiB of program memory.
  
! `__AVR_HAVE_8BIT_SP__'
! `__AVR_HAVE_16BIT_SP__'
       The stack pointer (SP) register is treated as 8-bit respectively
!      16-bit register by the compiler.  The definition of these macros
!      is affected by `-mtiny-stack'.
  
! `__AVR_HAVE_SPH__'
! `__AVR_SP8__'
       The device has the SPH (high part of stack pointer) special
!      function register or has an 8-bit stack pointer, respectively.
!      The definition of these macros is affected by `-mmcu=' and in the
!      cases of `-mmcu=avr2' and `-mmcu=avr25' also by `-msp8'.
  
! `__AVR_HAVE_RAMPD__'
! `__AVR_HAVE_RAMPX__'
! `__AVR_HAVE_RAMPY__'
! `__AVR_HAVE_RAMPZ__'
!      The device has the `RAMPD', `RAMPX', `RAMPY', `RAMPZ' special
       function register, respectively.
  
! `__NO_INTERRUPTS__'
!      This macro reflects the `-mno-interrupts' command-line option.
  
! `__AVR_ERRATA_SKIP__'
! `__AVR_ERRATA_SKIP_JMP_CALL__'
       Some AVR devices (AT90S8515, ATmega103) must not skip 32-bit
       instructions because of a hardware erratum.  Skip instructions are
!      `SBRS', `SBRC', `SBIS', `SBIC' and `CPSE'.  The second macro is
!      only defined if `__AVR_HAVE_JMP_CALL__' is also set.
  
! `__AVR_ISA_RMW__'
       The device has Read-Modify-Write instructions (XCH, LAC, LAS and
       LAT).
  
! `__AVR_SFR_OFFSET__=OFFSET'
       Instructions that can address I/O special function registers
!      directly like `IN', `OUT', `SBI', etc. may use a different address
!      as if addressed by an instruction to access RAM like `LD' or
!      `STS'. This offset depends on the device architecture and has to
!      be subtracted from the RAM address in order to get the respective
       I/O address.
  
! `__WITH_AVRLIBC__'
       The compiler is configured to be used together with AVR-Libc.  See
!      the `--with-avrlibc' configure option.
! 
  
  
  File: gcc.info,  Node: Blackfin Options,  Next: C6X Options,  Prev: AVR Options,  Up: Submodel Options
--- 14027,14156 ----
  GCC defines several built-in macros so that the user code can test for
  the presence or absence of features.  Almost any of the following
  built-in macros are deduced from device capabilities and thus triggered
! by the '-mmcu=' command-line option.
  
   For even more AVR-specific built-in macros see *note AVR Named Address
  Spaces:: and *note AVR Built-in Functions::.
  
! '__AVR_ARCH__'
       Build-in macro that resolves to a decimal number that identifies
!      the architecture and depends on the '-mmcu=MCU' option.  Possible
       values are:
  
!      '2', '25', '3', '31', '35', '4', '5', '51', '6'
  
!      for MCU='avr2', 'avr25', 'avr3', 'avr31', 'avr35', 'avr4', 'avr5',
!      'avr51', 'avr6',
  
       respectively and
  
!      '100', '102', '104', '105', '106', '107'
  
!      for MCU='avrtiny', 'avrxmega2', 'avrxmega4', 'avrxmega5',
!      'avrxmega6', 'avrxmega7', respectively.  If MCU specifies a device,
!      this built-in macro is set accordingly.  For example, with
!      '-mmcu=atmega8' the macro is defined to '4'.
  
! '__AVR_DEVICE__'
!      Setting '-mmcu=DEVICE' defines this built-in macro which reflects
!      the device's name.  For example, '-mmcu=atmega8' defines the
!      built-in macro '__AVR_ATmega8__', '-mmcu=attiny261a' defines
!      '__AVR_ATtiny261A__', etc.
  
!      The built-in macros' names follow the scheme '__AVR_DEVICE__' where
!      DEVICE is the device name as from the AVR user manual.  The
       difference between DEVICE in the built-in macro and DEVICE in
!      '-mmcu=DEVICE' is that the latter is always lowercase.
  
       If DEVICE is not a device but only a core architecture like
!      'avr51', this macro is not defined.
  
! '__AVR_DEVICE_NAME__'
!      Setting '-mmcu=DEVICE' defines this built-in macro to the device's
!      name.  For example, with '-mmcu=atmega8' the macro is defined to
!      'atmega8'.
  
       If DEVICE is not a device but only a core architecture like
!      'avr51', this macro is not defined.
  
! '__AVR_XMEGA__'
       The device / architecture belongs to the XMEGA family of devices.
  
! '__AVR_HAVE_ELPM__'
!      The device has the 'ELPM' instruction.
  
! '__AVR_HAVE_ELPMX__'
!      The device has the 'ELPM RN,Z' and 'ELPM RN,Z+' instructions.
  
! '__AVR_HAVE_MOVW__'
!      The device has the 'MOVW' instruction to perform 16-bit
       register-register moves.
  
! '__AVR_HAVE_LPMX__'
!      The device has the 'LPM RN,Z' and 'LPM RN,Z+' instructions.
  
! '__AVR_HAVE_MUL__'
       The device has a hardware multiplier.
  
! '__AVR_HAVE_JMP_CALL__'
!      The device has the 'JMP' and 'CALL' instructions.  This is the case
!      for devices with at least 16 KiB of program memory.
  
! '__AVR_HAVE_EIJMP_EICALL__'
! '__AVR_3_BYTE_PC__'
!      The device has the 'EIJMP' and 'EICALL' instructions.  This is the
       case for devices with more than 128 KiB of program memory.  This
       also means that the program counter (PC) is 3 bytes wide.
  
! '__AVR_2_BYTE_PC__'
!      The program counter (PC) is 2 bytes wide.  This is the case for
       devices with up to 128 KiB of program memory.
  
! '__AVR_HAVE_8BIT_SP__'
! '__AVR_HAVE_16BIT_SP__'
       The stack pointer (SP) register is treated as 8-bit respectively
!      16-bit register by the compiler.  The definition of these macros is
!      affected by '-mtiny-stack'.
  
! '__AVR_HAVE_SPH__'
! '__AVR_SP8__'
       The device has the SPH (high part of stack pointer) special
!      function register or has an 8-bit stack pointer, respectively.  The
!      definition of these macros is affected by '-mmcu=' and in the cases
!      of '-mmcu=avr2' and '-mmcu=avr25' also by '-msp8'.
  
! '__AVR_HAVE_RAMPD__'
! '__AVR_HAVE_RAMPX__'
! '__AVR_HAVE_RAMPY__'
! '__AVR_HAVE_RAMPZ__'
!      The device has the 'RAMPD', 'RAMPX', 'RAMPY', 'RAMPZ' special
       function register, respectively.
  
! '__NO_INTERRUPTS__'
!      This macro reflects the '-mno-interrupts' command-line option.
  
! '__AVR_ERRATA_SKIP__'
! '__AVR_ERRATA_SKIP_JMP_CALL__'
       Some AVR devices (AT90S8515, ATmega103) must not skip 32-bit
       instructions because of a hardware erratum.  Skip instructions are
!      'SBRS', 'SBRC', 'SBIS', 'SBIC' and 'CPSE'.  The second macro is
!      only defined if '__AVR_HAVE_JMP_CALL__' is also set.
  
! '__AVR_ISA_RMW__'
       The device has Read-Modify-Write instructions (XCH, LAC, LAS and
       LAT).
  
! '__AVR_SFR_OFFSET__=OFFSET'
       Instructions that can address I/O special function registers
!      directly like 'IN', 'OUT', 'SBI', etc. may use a different address
!      as if addressed by an instruction to access RAM like 'LD' or 'STS'.
!      This offset depends on the device architecture and has to be
!      subtracted from the RAM address in order to get the respective
       I/O address.
  
! '__WITH_AVRLIBC__'
       The compiler is configured to be used together with AVR-Libc.  See
!      the '--with-avrlibc' configure option.
  
  
  File: gcc.info,  Node: Blackfin Options,  Next: C6X Options,  Prev: AVR Options,  Up: Submodel Options
*************** File: gcc.info,  Node: Blackfin Options,
*** 14263,14383 ****
  3.18.6 Blackfin Options
  -----------------------
  
! `-mcpu=CPU[-SIREVISION]'
       Specifies the name of the target Blackfin processor.  Currently,
!      CPU can be one of `bf512', `bf514', `bf516', `bf518', `bf522',
!      `bf523', `bf524', `bf525', `bf526', `bf527', `bf531', `bf532',
!      `bf533', `bf534', `bf536', `bf537', `bf538', `bf539', `bf542',
!      `bf544', `bf547', `bf548', `bf549', `bf542m', `bf544m', `bf547m',
!      `bf548m', `bf549m', `bf561', `bf592'.
  
       The optional SIREVISION specifies the silicon revision of the
       target Blackfin processor.  Any workarounds available for the
!      targeted silicon revision are enabled.  If SIREVISION is `none',
!      no workarounds are enabled.  If SIREVISION is `any', all
!      workarounds for the targeted processor are enabled.  The
!      `__SILICON_REVISION__' macro is defined to two hexadecimal digits
!      representing the major and minor numbers in the silicon revision.
!      If SIREVISION is `none', the `__SILICON_REVISION__' is not
!      defined.  If SIREVISION is `any', the `__SILICON_REVISION__' is
!      defined to be `0xffff'.  If this optional SIREVISION is not used,
!      GCC assumes the latest known silicon revision of the targeted
!      Blackfin processor.
  
       GCC defines a preprocessor macro for the specified CPU.  For the
!      `bfin-elf' toolchain, this option causes the hardware BSP provided
!      by libgloss to be linked in if `-msim' is not given.
  
!      Without this option, `bf532' is used as the processor by default.
  
!      Note that support for `bf561' is incomplete.  For `bf561', only
!      the preprocessor macro is defined.
  
! `-msim'
       Specifies that the program will be run on the simulator.  This
       causes the simulator BSP provided by libgloss to be linked in.
!      This option has effect only for `bfin-elf' toolchain.  Certain
!      other options, such as `-mid-shared-library' and `-mfdpic', imply
!      `-msim'.
  
! `-momit-leaf-frame-pointer'
       Don't keep the frame pointer in a register for leaf functions.
       This avoids the instructions to save, set up and restore frame
       pointers and makes an extra register available in leaf functions.
!      The option `-fomit-frame-pointer' removes the frame pointer for
!      all functions, which might make debugging harder.
  
! `-mspecld-anomaly'
       When enabled, the compiler ensures that the generated code does not
!      contain speculative loads after jump instructions. If this option
!      is used, `__WORKAROUND_SPECULATIVE_LOADS' is defined.
  
! `-mno-specld-anomaly'
       Don't generate extra code to prevent speculative loads from
       occurring.
  
! `-mcsync-anomaly'
       When enabled, the compiler ensures that the generated code does not
       contain CSYNC or SSYNC instructions too soon after conditional
!      branches.  If this option is used,
!      `__WORKAROUND_SPECULATIVE_SYNCS' is defined.
  
! `-mno-csync-anomaly'
       Don't generate extra code to prevent CSYNC or SSYNC instructions
       from occurring too soon after a conditional branch.
  
! `-mlow-64k'
       When enabled, the compiler is free to take advantage of the
       knowledge that the entire program fits into the low 64k of memory.
  
! `-mno-low-64k'
       Assume that the program is arbitrarily large.  This is the default.
  
! `-mstack-check-l1'
       Do stack checking using information placed into L1 scratchpad
       memory by the uClinux kernel.
  
! `-mid-shared-library'
       Generate code that supports shared libraries via the library ID
       method.  This allows for execute in place and shared libraries in
       an environment without virtual memory management.  This option
!      implies `-fPIC'.  With a `bfin-elf' target, this option implies
!      `-msim'.
  
! `-mno-id-shared-library'
       Generate code that doesn't assume ID-based shared libraries are
       being used.  This is the default.
  
! `-mleaf-id-shared-library'
       Generate code that supports shared libraries via the library ID
       method, but assumes that this library or executable won't link
!      against any other ID shared libraries.  That allows the compiler
!      to use faster code for jumps and calls.
  
! `-mno-leaf-id-shared-library'
       Do not assume that the code being compiled won't link against any
       ID shared libraries.  Slower code is generated for jump and call
       insns.
  
! `-mshared-library-id=n'
       Specifies the identification number of the ID-based shared library
       being compiled.  Specifying a value of 0 generates more compact
       code; specifying other values forces the allocation of that number
!      to the current library but is no more space- or time-efficient
!      than omitting this option.
  
! `-msep-data'
       Generate code that allows the data segment to be located in a
       different area of memory from the text segment.  This allows for
       execute in place in an environment without virtual memory
       management by eliminating relocations against the text section.
  
! `-mno-sep-data'
       Generate code that assumes that the data segment follows the text
       segment.  This is the default.
  
! `-mlong-calls'
! `-mno-long-calls'
       Tells the compiler to perform function calls by first loading the
       address of the function into a register and then performing a
       subroutine call on this register.  This switch is needed if the
--- 14158,14277 ----
  3.18.6 Blackfin Options
  -----------------------
  
! '-mcpu=CPU[-SIREVISION]'
       Specifies the name of the target Blackfin processor.  Currently,
!      CPU can be one of 'bf512', 'bf514', 'bf516', 'bf518', 'bf522',
!      'bf523', 'bf524', 'bf525', 'bf526', 'bf527', 'bf531', 'bf532',
!      'bf533', 'bf534', 'bf536', 'bf537', 'bf538', 'bf539', 'bf542',
!      'bf544', 'bf547', 'bf548', 'bf549', 'bf542m', 'bf544m', 'bf547m',
!      'bf548m', 'bf549m', 'bf561', 'bf592'.
  
       The optional SIREVISION specifies the silicon revision of the
       target Blackfin processor.  Any workarounds available for the
!      targeted silicon revision are enabled.  If SIREVISION is 'none', no
!      workarounds are enabled.  If SIREVISION is 'any', all workarounds
!      for the targeted processor are enabled.  The '__SILICON_REVISION__'
!      macro is defined to two hexadecimal digits representing the major
!      and minor numbers in the silicon revision.  If SIREVISION is
!      'none', the '__SILICON_REVISION__' is not defined.  If SIREVISION
!      is 'any', the '__SILICON_REVISION__' is defined to be '0xffff'.  If
!      this optional SIREVISION is not used, GCC assumes the latest known
!      silicon revision of the targeted Blackfin processor.
  
       GCC defines a preprocessor macro for the specified CPU.  For the
!      'bfin-elf' toolchain, this option causes the hardware BSP provided
!      by libgloss to be linked in if '-msim' is not given.
  
!      Without this option, 'bf532' is used as the processor by default.
  
!      Note that support for 'bf561' is incomplete.  For 'bf561', only the
!      preprocessor macro is defined.
  
! '-msim'
       Specifies that the program will be run on the simulator.  This
       causes the simulator BSP provided by libgloss to be linked in.
!      This option has effect only for 'bfin-elf' toolchain.  Certain
!      other options, such as '-mid-shared-library' and '-mfdpic', imply
!      '-msim'.
  
! '-momit-leaf-frame-pointer'
       Don't keep the frame pointer in a register for leaf functions.
       This avoids the instructions to save, set up and restore frame
       pointers and makes an extra register available in leaf functions.
!      The option '-fomit-frame-pointer' removes the frame pointer for all
!      functions, which might make debugging harder.
  
! '-mspecld-anomaly'
       When enabled, the compiler ensures that the generated code does not
!      contain speculative loads after jump instructions.  If this option
!      is used, '__WORKAROUND_SPECULATIVE_LOADS' is defined.
  
! '-mno-specld-anomaly'
       Don't generate extra code to prevent speculative loads from
       occurring.
  
! '-mcsync-anomaly'
       When enabled, the compiler ensures that the generated code does not
       contain CSYNC or SSYNC instructions too soon after conditional
!      branches.  If this option is used, '__WORKAROUND_SPECULATIVE_SYNCS'
!      is defined.
  
! '-mno-csync-anomaly'
       Don't generate extra code to prevent CSYNC or SSYNC instructions
       from occurring too soon after a conditional branch.
  
! '-mlow-64k'
       When enabled, the compiler is free to take advantage of the
       knowledge that the entire program fits into the low 64k of memory.
  
! '-mno-low-64k'
       Assume that the program is arbitrarily large.  This is the default.
  
! '-mstack-check-l1'
       Do stack checking using information placed into L1 scratchpad
       memory by the uClinux kernel.
  
! '-mid-shared-library'
       Generate code that supports shared libraries via the library ID
       method.  This allows for execute in place and shared libraries in
       an environment without virtual memory management.  This option
!      implies '-fPIC'.  With a 'bfin-elf' target, this option implies
!      '-msim'.
  
! '-mno-id-shared-library'
       Generate code that doesn't assume ID-based shared libraries are
       being used.  This is the default.
  
! '-mleaf-id-shared-library'
       Generate code that supports shared libraries via the library ID
       method, but assumes that this library or executable won't link
!      against any other ID shared libraries.  That allows the compiler to
!      use faster code for jumps and calls.
  
! '-mno-leaf-id-shared-library'
       Do not assume that the code being compiled won't link against any
       ID shared libraries.  Slower code is generated for jump and call
       insns.
  
! '-mshared-library-id=n'
       Specifies the identification number of the ID-based shared library
       being compiled.  Specifying a value of 0 generates more compact
       code; specifying other values forces the allocation of that number
!      to the current library but is no more space- or time-efficient than
!      omitting this option.
  
! '-msep-data'
       Generate code that allows the data segment to be located in a
       different area of memory from the text segment.  This allows for
       execute in place in an environment without virtual memory
       management by eliminating relocations against the text section.
  
! '-mno-sep-data'
       Generate code that assumes that the data segment follows the text
       segment.  This is the default.
  
! '-mlong-calls'
! '-mno-long-calls'
       Tells the compiler to perform function calls by first loading the
       address of the function into a register and then performing a
       subroutine call on this register.  This switch is needed if the
*************** File: gcc.info,  Node: Blackfin Options,
*** 14385,14440 ****
       offset-based version of subroutine call instruction.
  
       This feature is not enabled by default.  Specifying
!      `-mno-long-calls' restores the default behavior.  Note these
       switches have no effect on how the compiler generates code to
       handle function calls via function pointers.
  
! `-mfast-fp'
!      Link with the fast floating-point library. This library relaxes
       some of the IEEE floating-point standard's rules for checking
       inputs against Not-a-Number (NAN), in the interest of performance.
  
! `-minline-plt'
       Enable inlining of PLT entries in function calls to functions that
!      are not known to bind locally.  It has no effect without `-mfdpic'.
  
! `-mmulticore'
       Build a standalone application for multicore Blackfin processors.
       This option causes proper start files and link scripts supporting
!      multicore to be used, and defines the macro `__BFIN_MULTICORE'.
!      It can only be used with `-mcpu=bf561[-SIREVISION]'.
  
!      This option can be used with `-mcorea' or `-mcoreb', which selects
!      the one-application-per-core programming model.  Without `-mcorea'
!      or `-mcoreb', the single-application/dual-core programming model
!      is used. In this model, the main function of Core B should be
!      named as `coreb_main'.
  
       If this option is not used, the single-core application programming
       model is used.
  
! `-mcorea'
       Build a standalone application for Core A of BF561 when using the
!      one-application-per-core programming model. Proper start files and
       link scripts are used to support Core A, and the macro
!      `__BFIN_COREA' is defined.  This option can only be used in
!      conjunction with `-mmulticore'.
  
! `-mcoreb'
       Build a standalone application for Core B of BF561 when using the
!      one-application-per-core programming model. Proper start files and
       link scripts are used to support Core B, and the macro
!      `__BFIN_COREB' is defined. When this option is used, `coreb_main'
!      should be used instead of `main'.  This option can only be used in
!      conjunction with `-mmulticore'.
  
! `-msdram'
       Build a standalone application for SDRAM. Proper start files and
       link scripts are used to put the application into SDRAM, and the
!      macro `__BFIN_SDRAM' is defined.  The loader should initialize
       SDRAM before loading the application.
  
! `-micplb'
       Assume that ICPLBs are enabled at run time.  This has an effect on
       certain anomaly workarounds.  For Linux targets, the default is to
       assume ICPLBs are enabled; for standalone applications the default
--- 14279,14334 ----
       offset-based version of subroutine call instruction.
  
       This feature is not enabled by default.  Specifying
!      '-mno-long-calls' restores the default behavior.  Note these
       switches have no effect on how the compiler generates code to
       handle function calls via function pointers.
  
! '-mfast-fp'
!      Link with the fast floating-point library.  This library relaxes
       some of the IEEE floating-point standard's rules for checking
       inputs against Not-a-Number (NAN), in the interest of performance.
  
! '-minline-plt'
       Enable inlining of PLT entries in function calls to functions that
!      are not known to bind locally.  It has no effect without '-mfdpic'.
  
! '-mmulticore'
       Build a standalone application for multicore Blackfin processors.
       This option causes proper start files and link scripts supporting
!      multicore to be used, and defines the macro '__BFIN_MULTICORE'.  It
!      can only be used with '-mcpu=bf561[-SIREVISION]'.
  
!      This option can be used with '-mcorea' or '-mcoreb', which selects
!      the one-application-per-core programming model.  Without '-mcorea'
!      or '-mcoreb', the single-application/dual-core programming model is
!      used.  In this model, the main function of Core B should be named
!      as 'coreb_main'.
  
       If this option is not used, the single-core application programming
       model is used.
  
! '-mcorea'
       Build a standalone application for Core A of BF561 when using the
!      one-application-per-core programming model.  Proper start files and
       link scripts are used to support Core A, and the macro
!      '__BFIN_COREA' is defined.  This option can only be used in
!      conjunction with '-mmulticore'.
  
! '-mcoreb'
       Build a standalone application for Core B of BF561 when using the
!      one-application-per-core programming model.  Proper start files and
       link scripts are used to support Core B, and the macro
!      '__BFIN_COREB' is defined.  When this option is used, 'coreb_main'
!      should be used instead of 'main'.  This option can only be used in
!      conjunction with '-mmulticore'.
  
! '-msdram'
       Build a standalone application for SDRAM. Proper start files and
       link scripts are used to put the application into SDRAM, and the
!      macro '__BFIN_SDRAM' is defined.  The loader should initialize
       SDRAM before loading the application.
  
! '-micplb'
       Assume that ICPLBs are enabled at run time.  This has an effect on
       certain anomaly workarounds.  For Linux targets, the default is to
       assume ICPLBs are enabled; for standalone applications the default
*************** File: gcc.info,  Node: C6X Options,  Nex
*** 14446,14485 ****
  3.18.7 C6X Options
  ------------------
  
! `-march=NAME'
       This specifies the name of the target architecture.  GCC uses this
       name to determine what kind of instructions it can emit when
!      generating assembly code.  Permissible names are: `c62x', `c64x',
!      `c64x+', `c67x', `c67x+', `c674x'.
  
! `-mbig-endian'
       Generate code for a big-endian target.
  
! `-mlittle-endian'
       Generate code for a little-endian target.  This is the default.
  
! `-msim'
       Choose startup files and linker script suitable for the simulator.
  
! `-msdata=default'
!      Put small global and static data in the `.neardata' section, which
!      is pointed to by register `B14'.  Put small uninitialized global
!      and static data in the `.bss' section, which is adjacent to the
!      `.neardata' section.  Put small read-only data into the `.rodata'
       section.  The corresponding sections used for large pieces of data
!      are `.fardata', `.far' and `.const'.
  
! `-msdata=all'
       Put all data, not just small objects, into the sections reserved
!      for small data, and use addressing relative to the `B14' register
       to access them.
  
! `-msdata=none'
       Make no use of the sections reserved for small data, and use
       absolute addresses to access all data.  Put all initialized global
!      and static data in the `.fardata' section, and all uninitialized
!      data in the `.far' section.  Put all constant data into the
!      `.const' section.
  
  
  File: gcc.info,  Node: CRIS Options,  Next: CR16 Options,  Prev: C6X Options,  Up: Submodel Options
--- 14340,14379 ----
  3.18.7 C6X Options
  ------------------
  
! '-march=NAME'
       This specifies the name of the target architecture.  GCC uses this
       name to determine what kind of instructions it can emit when
!      generating assembly code.  Permissible names are: 'c62x', 'c64x',
!      'c64x+', 'c67x', 'c67x+', 'c674x'.
  
! '-mbig-endian'
       Generate code for a big-endian target.
  
! '-mlittle-endian'
       Generate code for a little-endian target.  This is the default.
  
! '-msim'
       Choose startup files and linker script suitable for the simulator.
  
! '-msdata=default'
!      Put small global and static data in the '.neardata' section, which
!      is pointed to by register 'B14'.  Put small uninitialized global
!      and static data in the '.bss' section, which is adjacent to the
!      '.neardata' section.  Put small read-only data into the '.rodata'
       section.  The corresponding sections used for large pieces of data
!      are '.fardata', '.far' and '.const'.
  
! '-msdata=all'
       Put all data, not just small objects, into the sections reserved
!      for small data, and use addressing relative to the 'B14' register
       to access them.
  
! '-msdata=none'
       Make no use of the sections reserved for small data, and use
       absolute addresses to access all data.  Put all initialized global
!      and static data in the '.fardata' section, and all uninitialized
!      data in the '.far' section.  Put all constant data into the
!      '.const' section.
  
  
  File: gcc.info,  Node: CRIS Options,  Next: CR16 Options,  Prev: C6X Options,  Up: Submodel Options
*************** File: gcc.info,  Node: CRIS Options,  Ne
*** 14489,14588 ****
  
  These options are defined specifically for the CRIS ports.
  
! `-march=ARCHITECTURE-TYPE'
! `-mcpu=ARCHITECTURE-TYPE'
       Generate code for the specified architecture.  The choices for
!      ARCHITECTURE-TYPE are `v3', `v8' and `v10' for respectively
!      ETRAX 4, ETRAX 100, and ETRAX 100 LX.  Default is `v0' except for
!      cris-axis-linux-gnu, where the default is `v10'.
  
! `-mtune=ARCHITECTURE-TYPE'
       Tune to ARCHITECTURE-TYPE everything applicable about the generated
       code, except for the ABI and the set of available instructions.
       The choices for ARCHITECTURE-TYPE are the same as for
!      `-march=ARCHITECTURE-TYPE'.
  
! `-mmax-stack-frame=N'
       Warn when the stack frame of a function exceeds N bytes.
  
! `-metrax4'
! `-metrax100'
!      The options `-metrax4' and `-metrax100' are synonyms for
!      `-march=v3' and `-march=v8' respectively.
  
! `-mmul-bug-workaround'
! `-mno-mul-bug-workaround'
!      Work around a bug in the `muls' and `mulu' instructions for CPU
       models where it applies.  This option is active by default.
  
! `-mpdebug'
       Enable CRIS-specific verbose debug-related information in the
       assembly code.  This option also has the effect of turning off the
!      `#NO_APP' formatted-code indicator to the assembler at the
       beginning of the assembly file.
  
! `-mcc-init'
!      Do not use condition-code results from previous instruction;
!      always emit compare and test instructions before use of condition
!      codes.
  
! `-mno-side-effects'
       Do not emit instructions with side effects in addressing modes
       other than post-increment.
  
! `-mstack-align'
! `-mno-stack-align'
! `-mdata-align'
! `-mno-data-align'
! `-mconst-align'
! `-mno-const-align'
!      These options (`no-' options) arrange (eliminate arrangements) for
       the stack frame, individual data and constants to be aligned for
       the maximum single data access size for the chosen CPU model.  The
       default is to arrange for 32-bit alignment.  ABI details such as
       structure layout are not affected by these options.
  
! `-m32-bit'
! `-m16-bit'
! `-m8-bit'
       Similar to the stack- data- and const-align options above, these
!      options arrange for stack frame, writable data and constants to
!      all be 32-bit, 16-bit or 8-bit aligned.  The default is 32-bit
       alignment.
  
! `-mno-prologue-epilogue'
! `-mprologue-epilogue'
!      With `-mno-prologue-epilogue', the normal function prologue and
       epilogue which set up the stack frame are omitted and no return
       instructions or return sequences are generated in the code.  Use
       this option only together with visual inspection of the compiled
!      code: no warnings or errors are generated when call-saved
!      registers must be saved, or storage for local variables needs to
!      be allocated.
  
! `-mno-gotplt'
! `-mgotplt'
!      With `-fpic' and `-fPIC', don't generate (do generate) instruction
       sequences that load addresses for functions from the PLT part of
       the GOT rather than (traditional on other architectures) calls to
!      the PLT.  The default is `-mgotplt'.
  
! `-melf'
       Legacy no-op option only recognized with the cris-axis-elf and
       cris-axis-linux-gnu targets.
  
! `-mlinux'
       Legacy no-op option only recognized with the cris-axis-linux-gnu
       target.
  
! `-sim'
       This option, recognized for the cris-axis-elf, arranges to link
       with input-output functions from a simulator library.  Code,
       initialized data and zero-initialized data are allocated
       consecutively.
  
! `-sim2'
!      Like `-sim', but pass linker options to locate initialized data at
       0x40000000 and zero-initialized data at 0x80000000.
  
  
--- 14383,14481 ----
  
  These options are defined specifically for the CRIS ports.
  
! '-march=ARCHITECTURE-TYPE'
! '-mcpu=ARCHITECTURE-TYPE'
       Generate code for the specified architecture.  The choices for
!      ARCHITECTURE-TYPE are 'v3', 'v8' and 'v10' for respectively
!      ETRAX 4, ETRAX 100, and ETRAX 100 LX.  Default is 'v0' except for
!      cris-axis-linux-gnu, where the default is 'v10'.
  
! '-mtune=ARCHITECTURE-TYPE'
       Tune to ARCHITECTURE-TYPE everything applicable about the generated
       code, except for the ABI and the set of available instructions.
       The choices for ARCHITECTURE-TYPE are the same as for
!      '-march=ARCHITECTURE-TYPE'.
  
! '-mmax-stack-frame=N'
       Warn when the stack frame of a function exceeds N bytes.
  
! '-metrax4'
! '-metrax100'
!      The options '-metrax4' and '-metrax100' are synonyms for
!      '-march=v3' and '-march=v8' respectively.
  
! '-mmul-bug-workaround'
! '-mno-mul-bug-workaround'
!      Work around a bug in the 'muls' and 'mulu' instructions for CPU
       models where it applies.  This option is active by default.
  
! '-mpdebug'
       Enable CRIS-specific verbose debug-related information in the
       assembly code.  This option also has the effect of turning off the
!      '#NO_APP' formatted-code indicator to the assembler at the
       beginning of the assembly file.
  
! '-mcc-init'
!      Do not use condition-code results from previous instruction; always
!      emit compare and test instructions before use of condition codes.
  
! '-mno-side-effects'
       Do not emit instructions with side effects in addressing modes
       other than post-increment.
  
! '-mstack-align'
! '-mno-stack-align'
! '-mdata-align'
! '-mno-data-align'
! '-mconst-align'
! '-mno-const-align'
!      These options ('no-' options) arrange (eliminate arrangements) for
       the stack frame, individual data and constants to be aligned for
       the maximum single data access size for the chosen CPU model.  The
       default is to arrange for 32-bit alignment.  ABI details such as
       structure layout are not affected by these options.
  
! '-m32-bit'
! '-m16-bit'
! '-m8-bit'
       Similar to the stack- data- and const-align options above, these
!      options arrange for stack frame, writable data and constants to all
!      be 32-bit, 16-bit or 8-bit aligned.  The default is 32-bit
       alignment.
  
! '-mno-prologue-epilogue'
! '-mprologue-epilogue'
!      With '-mno-prologue-epilogue', the normal function prologue and
       epilogue which set up the stack frame are omitted and no return
       instructions or return sequences are generated in the code.  Use
       this option only together with visual inspection of the compiled
!      code: no warnings or errors are generated when call-saved registers
!      must be saved, or storage for local variables needs to be
!      allocated.
  
! '-mno-gotplt'
! '-mgotplt'
!      With '-fpic' and '-fPIC', don't generate (do generate) instruction
       sequences that load addresses for functions from the PLT part of
       the GOT rather than (traditional on other architectures) calls to
!      the PLT.  The default is '-mgotplt'.
  
! '-melf'
       Legacy no-op option only recognized with the cris-axis-elf and
       cris-axis-linux-gnu targets.
  
! '-mlinux'
       Legacy no-op option only recognized with the cris-axis-linux-gnu
       target.
  
! '-sim'
       This option, recognized for the cris-axis-elf, arranges to link
       with input-output functions from a simulator library.  Code,
       initialized data and zero-initialized data are allocated
       consecutively.
  
! '-sim2'
!      Like '-sim', but pass linker options to locate initialized data at
       0x40000000 and zero-initialized data at 0x80000000.
  
  
*************** File: gcc.info,  Node: CR16 Options,  Ne
*** 14593,14621 ****
  
  These options are defined specifically for the CR16 ports.
  
! `-mmac'
!      Enable the use of multiply-accumulate instructions. Disabled by
       default.
  
! `-mcr16cplus'
! `-mcr16c'
!      Generate code for CR16C or CR16C+ architecture. CR16C+ architecture
!      is default.
  
! `-msim'
       Links the library libsim.a which is in compatible with simulator.
       Applicable to ELF compiler only.
  
! `-mint32'
       Choose integer type as 32-bit wide.
  
! `-mbit-ops'
!      Generates `sbit'/`cbit' instructions for bit manipulations.
  
! `-mdata-model=MODEL'
!      Choose a data model. The choices for MODEL are `near', `far' or
!      `medium'. `medium' is default.  However, `far' is not valid with
!      `-mcr16c', as the CR16C architecture does not support the far data
       model.
  
  
--- 14486,14514 ----
  
  These options are defined specifically for the CR16 ports.
  
! '-mmac'
!      Enable the use of multiply-accumulate instructions.  Disabled by
       default.
  
! '-mcr16cplus'
! '-mcr16c'
!      Generate code for CR16C or CR16C+ architecture.  CR16C+
!      architecture is default.
  
! '-msim'
       Links the library libsim.a which is in compatible with simulator.
       Applicable to ELF compiler only.
  
! '-mint32'
       Choose integer type as 32-bit wide.
  
! '-mbit-ops'
!      Generates 'sbit'/'cbit' instructions for bit manipulations.
  
! '-mdata-model=MODEL'
!      Choose a data model.  The choices for MODEL are 'near', 'far' or
!      'medium'.  'medium' is default.  However, 'far' is not valid with
!      '-mcr16c', as the CR16C architecture does not support the far data
       model.
  
  
*************** operating system.
*** 14629,14667 ****
  
   FSF GCC on Darwin does not create "fat" object files; it creates an
  object file for the single architecture that GCC was built to target.
! Apple's GCC on Darwin does create "fat" files if multiple `-arch'
  options are used; it does so by running the compiler or linker multiple
! times and joining the results together with `lipo'.
  
!  The subtype of the file created (like `ppc7400' or `ppc970' or `i686')
  is determined by the flags that specify the ISA that GCC is targeting,
! like `-mcpu' or `-march'.  The `-force_cpusubtype_ALL' option can be
  used to override this.
  
   The Darwin tools vary in their behavior when presented with an ISA
! mismatch.  The assembler, `as', only permits instructions to be used
  that are valid for the subtype of the file it is generating, so you
! cannot put 64-bit instructions in a `ppc750' object file.  The linker
! for shared libraries, `/usr/bin/libtool', fails and prints an error if
  asked to create a shared library with a less restrictive subtype than
! its input files (for instance, trying to put a `ppc970' object file in
! a `ppc7400' library).  The linker for executables, `ld', quietly gives
! the executable the most restrictive subtype of any of its input files.
  
! `-FDIR'
       Add the framework directory DIR to the head of the list of
       directories to be searched for header files.  These directories are
!      interleaved with those specified by `-I' options and are scanned
!      in a left-to-right order.
  
       A framework directory is a directory with frameworks in it.  A
!      framework is a directory with a `Headers' and/or `PrivateHeaders'
!      directory contained directly in it that ends in `.framework'.  The
       name of a framework is the name of this directory excluding the
!      `.framework'.  Headers associated with the framework are found in
!      one of those two directories, with `Headers' being searched first.
       A subframework is a framework directory that is in a framework's
!      `Frameworks' directory.  Includes of subframework headers can only
       appear in a header of a framework that contains the subframework,
       or in a sibling subframework header.  Two subframeworks are
       siblings if they occur in the same framework.  A subframework
--- 14522,14560 ----
  
   FSF GCC on Darwin does not create "fat" object files; it creates an
  object file for the single architecture that GCC was built to target.
! Apple's GCC on Darwin does create "fat" files if multiple '-arch'
  options are used; it does so by running the compiler or linker multiple
! times and joining the results together with 'lipo'.
  
!  The subtype of the file created (like 'ppc7400' or 'ppc970' or 'i686')
  is determined by the flags that specify the ISA that GCC is targeting,
! like '-mcpu' or '-march'.  The '-force_cpusubtype_ALL' option can be
  used to override this.
  
   The Darwin tools vary in their behavior when presented with an ISA
! mismatch.  The assembler, 'as', only permits instructions to be used
  that are valid for the subtype of the file it is generating, so you
! cannot put 64-bit instructions in a 'ppc750' object file.  The linker
! for shared libraries, '/usr/bin/libtool', fails and prints an error if
  asked to create a shared library with a less restrictive subtype than
! its input files (for instance, trying to put a 'ppc970' object file in a
! 'ppc7400' library).  The linker for executables, 'ld', quietly gives the
! executable the most restrictive subtype of any of its input files.
  
! '-FDIR'
       Add the framework directory DIR to the head of the list of
       directories to be searched for header files.  These directories are
!      interleaved with those specified by '-I' options and are scanned in
!      a left-to-right order.
  
       A framework directory is a directory with frameworks in it.  A
!      framework is a directory with a 'Headers' and/or 'PrivateHeaders'
!      directory contained directly in it that ends in '.framework'.  The
       name of a framework is the name of this directory excluding the
!      '.framework'.  Headers associated with the framework are found in
!      one of those two directories, with 'Headers' being searched first.
       A subframework is a framework directory that is in a framework's
!      'Frameworks' directory.  Includes of subframework headers can only
       appear in a header of a framework that contains the subframework,
       or in a sibling subframework header.  Two subframeworks are
       siblings if they occur in the same framework.  A subframework
*************** the executable the most restrictive subt
*** 14669,14819 ****
       if this is violated.  Currently a subframework cannot have
       subframeworks; in the future, the mechanism may be extended to
       support this.  The standard frameworks can be found in
!      `/System/Library/Frameworks' and `/Library/Frameworks'.  An
!      example include looks like `#include <Framework/header.h>', where
!      `Framework' denotes the name of the framework and `header.h' is
!      found in the `PrivateHeaders' or `Headers' directory.
  
! `-iframeworkDIR'
!      Like `-F' except the directory is a treated as a system directory.
!      The main difference between this `-iframework' and `-F' is that
!      with `-iframework' the compiler does not warn about constructs
       contained within header files found via DIR.  This option is valid
       only for the C family of languages.
  
! `-gused'
       Emit debugging information for symbols that are used.  For stabs
!      debugging format, this enables `-feliminate-unused-debug-symbols'.
       This is by default ON.
  
! `-gfull'
       Emit debugging information for all symbols and types.
  
! `-mmacosx-version-min=VERSION'
!      The earliest version of MacOS X that this executable will run on
!      is VERSION.  Typical values of VERSION include `10.1', `10.2', and
!      `10.3.9'.
  
       If the compiler was built to use the system's headers by default,
       then the default for this option is the system version on which the
       compiler is running, otherwise the default is to make choices that
       are compatible with as many systems and code bases as possible.
  
! `-mkernel'
!      Enable kernel development mode.  The `-mkernel' option sets
!      `-static', `-fno-common', `-fno-use-cxa-atexit',
!      `-fno-exceptions', `-fno-non-call-exceptions', `-fapple-kext',
!      `-fno-weak' and `-fno-rtti' where applicable.  This mode also sets
!      `-mno-altivec', `-msoft-float', `-fno-builtin' and `-mlong-branch'
!      for PowerPC targets.
  
! `-mone-byte-bool'
!      Override the defaults for `bool' so that `sizeof(bool)==1'.  By
!      default `sizeof(bool)' is `4' when compiling for Darwin/PowerPC
!      and `1' when compiling for Darwin/x86, so this option has no
!      effect on x86.
  
!      *Warning:* The `-mone-byte-bool' switch causes GCC to generate
!      code that is not binary compatible with code generated without
!      that switch.  Using this switch may require recompiling all other
       modules in a program, including system libraries.  Use this switch
       to conform to a non-default data model.
  
! `-mfix-and-continue'
! `-ffix-and-continue'
! `-findirect-data'
       Generate code suitable for fast turnaround development, such as to
!      allow GDB to dynamically load `.o' files into already-running
!      programs.  `-findirect-data' and `-ffix-and-continue' are provided
       for backwards compatibility.
  
! `-all_load'
       Loads all members of static archive libraries.  See man ld(1) for
       more information.
  
! `-arch_errors_fatal'
       Cause the errors having to do with files that have the wrong
       architecture to be fatal.
  
! `-bind_at_load'
       Causes the output file to be marked such that the dynamic linker
       will bind all undefined references when the file is loaded or
       launched.
  
! `-bundle'
       Produce a Mach-o bundle format file.  See man ld(1) for more
       information.
  
! `-bundle_loader EXECUTABLE'
       This option specifies the EXECUTABLE that will load the build
       output file being linked.  See man ld(1) for more information.
  
! `-dynamiclib'
       When passed this option, GCC produces a dynamic library instead of
!      an executable when linking, using the Darwin `libtool' command.
  
! `-force_cpusubtype_ALL'
!      This causes GCC's output file to have the `ALL' subtype, instead of
!      one controlled by the `-mcpu' or `-march' option.
  
! `-allowable_client  CLIENT_NAME'
! `-client_name'
! `-compatibility_version'
! `-current_version'
! `-dead_strip'
! `-dependency-file'
! `-dylib_file'
! `-dylinker_install_name'
! `-dynamic'
! `-exported_symbols_list'
! `-filelist'
! `-flat_namespace'
! `-force_flat_namespace'
! `-headerpad_max_install_names'
! `-image_base'
! `-init'
! `-install_name'
! `-keep_private_externs'
! `-multi_module'
! `-multiply_defined'
! `-multiply_defined_unused'
! `-noall_load'
! `-no_dead_strip_inits_and_terms'
! `-nofixprebinding'
! `-nomultidefs'
! `-noprebind'
! `-noseglinkedit'
! `-pagezero_size'
! `-prebind'
! `-prebind_all_twolevel_modules'
! `-private_bundle'
! `-read_only_relocs'
! `-sectalign'
! `-sectobjectsymbols'
! `-whyload'
! `-seg1addr'
! `-sectcreate'
! `-sectobjectsymbols'
! `-sectorder'
! `-segaddr'
! `-segs_read_only_addr'
! `-segs_read_write_addr'
! `-seg_addr_table'
! `-seg_addr_table_filename'
! `-seglinkedit'
! `-segprot'
! `-segs_read_only_addr'
! `-segs_read_write_addr'
! `-single_module'
! `-static'
! `-sub_library'
! `-sub_umbrella'
! `-twolevel_namespace'
! `-umbrella'
! `-undefined'
! `-unexported_symbols_list'
! `-weak_reference_mismatches'
! `-whatsloaded'
       These options are passed to the Darwin linker.  The Darwin linker
       man page describes them in detail.
  
--- 14562,14712 ----
       if this is violated.  Currently a subframework cannot have
       subframeworks; in the future, the mechanism may be extended to
       support this.  The standard frameworks can be found in
!      '/System/Library/Frameworks' and '/Library/Frameworks'.  An example
!      include looks like '#include <Framework/header.h>', where
!      'Framework' denotes the name of the framework and 'header.h' is
!      found in the 'PrivateHeaders' or 'Headers' directory.
  
! '-iframeworkDIR'
!      Like '-F' except the directory is a treated as a system directory.
!      The main difference between this '-iframework' and '-F' is that
!      with '-iframework' the compiler does not warn about constructs
       contained within header files found via DIR.  This option is valid
       only for the C family of languages.
  
! '-gused'
       Emit debugging information for symbols that are used.  For stabs
!      debugging format, this enables '-feliminate-unused-debug-symbols'.
       This is by default ON.
  
! '-gfull'
       Emit debugging information for all symbols and types.
  
! '-mmacosx-version-min=VERSION'
!      The earliest version of MacOS X that this executable will run on is
!      VERSION.  Typical values of VERSION include '10.1', '10.2', and
!      '10.3.9'.
  
       If the compiler was built to use the system's headers by default,
       then the default for this option is the system version on which the
       compiler is running, otherwise the default is to make choices that
       are compatible with as many systems and code bases as possible.
  
! '-mkernel'
!      Enable kernel development mode.  The '-mkernel' option sets
!      '-static', '-fno-common', '-fno-use-cxa-atexit', '-fno-exceptions',
!      '-fno-non-call-exceptions', '-fapple-kext', '-fno-weak' and
!      '-fno-rtti' where applicable.  This mode also sets '-mno-altivec',
!      '-msoft-float', '-fno-builtin' and '-mlong-branch' for PowerPC
!      targets.
  
! '-mone-byte-bool'
!      Override the defaults for 'bool' so that 'sizeof(bool)==1'.  By
!      default 'sizeof(bool)' is '4' when compiling for Darwin/PowerPC and
!      '1' when compiling for Darwin/x86, so this option has no effect on
!      x86.
  
!      *Warning:* The '-mone-byte-bool' switch causes GCC to generate code
!      that is not binary compatible with code generated without that
!      switch.  Using this switch may require recompiling all other
       modules in a program, including system libraries.  Use this switch
       to conform to a non-default data model.
  
! '-mfix-and-continue'
! '-ffix-and-continue'
! '-findirect-data'
       Generate code suitable for fast turnaround development, such as to
!      allow GDB to dynamically load '.o' files into already-running
!      programs.  '-findirect-data' and '-ffix-and-continue' are provided
       for backwards compatibility.
  
! '-all_load'
       Loads all members of static archive libraries.  See man ld(1) for
       more information.
  
! '-arch_errors_fatal'
       Cause the errors having to do with files that have the wrong
       architecture to be fatal.
  
! '-bind_at_load'
       Causes the output file to be marked such that the dynamic linker
       will bind all undefined references when the file is loaded or
       launched.
  
! '-bundle'
       Produce a Mach-o bundle format file.  See man ld(1) for more
       information.
  
! '-bundle_loader EXECUTABLE'
       This option specifies the EXECUTABLE that will load the build
       output file being linked.  See man ld(1) for more information.
  
! '-dynamiclib'
       When passed this option, GCC produces a dynamic library instead of
!      an executable when linking, using the Darwin 'libtool' command.
  
! '-force_cpusubtype_ALL'
!      This causes GCC's output file to have the 'ALL' subtype, instead of
!      one controlled by the '-mcpu' or '-march' option.
  
! '-allowable_client CLIENT_NAME'
! '-client_name'
! '-compatibility_version'
! '-current_version'
! '-dead_strip'
! '-dependency-file'
! '-dylib_file'
! '-dylinker_install_name'
! '-dynamic'
! '-exported_symbols_list'
! '-filelist'
! '-flat_namespace'
! '-force_flat_namespace'
! '-headerpad_max_install_names'
! '-image_base'
! '-init'
! '-install_name'
! '-keep_private_externs'
! '-multi_module'
! '-multiply_defined'
! '-multiply_defined_unused'
! '-noall_load'
! '-no_dead_strip_inits_and_terms'
! '-nofixprebinding'
! '-nomultidefs'
! '-noprebind'
! '-noseglinkedit'
! '-pagezero_size'
! '-prebind'
! '-prebind_all_twolevel_modules'
! '-private_bundle'
! '-read_only_relocs'
! '-sectalign'
! '-sectobjectsymbols'
! '-whyload'
! '-seg1addr'
! '-sectcreate'
! '-sectobjectsymbols'
! '-sectorder'
! '-segaddr'
! '-segs_read_only_addr'
! '-segs_read_write_addr'
! '-seg_addr_table'
! '-seg_addr_table_filename'
! '-seglinkedit'
! '-segprot'
! '-segs_read_only_addr'
! '-segs_read_write_addr'
! '-single_module'
! '-static'
! '-sub_library'
! '-sub_umbrella'
! '-twolevel_namespace'
! '-umbrella'
! '-undefined'
! '-unexported_symbols_list'
! '-weak_reference_mismatches'
! '-whatsloaded'
       These options are passed to the Darwin linker.  The Darwin linker
       man page describes them in detail.
  
*************** File: gcc.info,  Node: DEC Alpha Options
*** 14823,14965 ****
  3.18.11 DEC Alpha Options
  -------------------------
  
! These `-m' options are defined for the DEC Alpha implementations:
  
! `-mno-soft-float'
! `-msoft-float'
       Use (do not use) the hardware floating-point instructions for
!      floating-point operations.  When `-msoft-float' is specified,
!      functions in `libgcc.a' are used to perform floating-point
       operations.  Unless they are replaced by routines that emulate the
       floating-point operations, or compiled in such a way as to call
       such emulations routines, these routines issue floating-point
!      operations.   If you are compiling for an Alpha without
       floating-point operations, you must ensure that the library is
       built so as not to call them.
  
       Note that Alpha implementations without floating-point operations
       are required to have floating-point registers.
  
! `-mfp-reg'
! `-mno-fp-regs'
       Generate code that uses (does not use) the floating-point register
!      set.  `-mno-fp-regs' implies `-msoft-float'.  If the floating-point
       register set is not used, floating-point operands are passed in
       integer registers as if they were integers and floating-point
!      results are passed in `$0' instead of `$f0'.  This is a
       non-standard calling sequence, so any function with a
       floating-point argument or return value called by code compiled
!      with `-mno-fp-regs' must also be compiled with that option.
  
       A typical use of this option is building a kernel that does not
       use, and hence need not save and restore, any floating-point
       registers.
  
! `-mieee'
!      The Alpha architecture implements floating-point hardware
!      optimized for maximum performance.  It is mostly compliant with
!      the IEEE floating-point standard.  However, for full compliance,
!      software assistance is required.  This option generates code fully
       IEEE-compliant code _except_ that the INEXACT-FLAG is not
       maintained (see below).  If this option is turned on, the
!      preprocessor macro `_IEEE_FP' is defined during compilation.  The
       resulting code is less efficient but is able to correctly support
       denormalized numbers and exceptional IEEE values such as
       not-a-number and plus/minus infinity.  Other Alpha compilers call
!      this option `-ieee_with_no_inexact'.
  
! `-mieee-with-inexact'
!      This is like `-mieee' except the generated code also maintains the
       IEEE INEXACT-FLAG.  Turning on this option causes the generated
       code to implement fully-compliant IEEE math.  In addition to
!      `_IEEE_FP', `_IEEE_FP_EXACT' is defined as a preprocessor macro.
       On some Alpha implementations the resulting code may execute
       significantly slower than the code generated by default.  Since
       there is very little code that depends on the INEXACT-FLAG, you
       should normally not specify this option.  Other Alpha compilers
!      call this option `-ieee_with_inexact'.
  
! `-mfp-trap-mode=TRAP-MODE'
       This option controls what floating-point related traps are enabled.
!      Other Alpha compilers call this option `-fptm TRAP-MODE'.  The
!      trap mode can be set to one of four values:
  
!     `n'
!           This is the default (normal) setting.  The only traps that
!           are enabled are the ones that cannot be disabled in software
            (e.g., division by zero trap).
  
!     `u'
!           In addition to the traps enabled by `n', underflow traps are
            enabled as well.
  
!     `su'
!           Like `u', but the instructions are marked to be safe for
            software completion (see Alpha architecture manual for
            details).
  
!     `sui'
!           Like `su', but inexact traps are enabled as well.
  
! `-mfp-rounding-mode=ROUNDING-MODE'
       Selects the IEEE rounding mode.  Other Alpha compilers call this
!      option `-fprm ROUNDING-MODE'.  The ROUNDING-MODE can be one of:
  
!     `n'
!           Normal IEEE rounding mode.  Floating-point numbers are
!           rounded towards the nearest machine number or towards the
!           even machine number in case of a tie.
  
!     `m'
            Round towards minus infinity.
  
!     `c'
            Chopped rounding mode.  Floating-point numbers are rounded
            towards zero.
  
!     `d'
            Dynamic rounding mode.  A field in the floating-point control
            register (FPCR, see Alpha architecture reference manual)
            controls the rounding mode in effect.  The C library
            initializes this register for rounding towards plus infinity.
!           Thus, unless your program modifies the FPCR, `d' corresponds
            to round towards plus infinity.
  
! `-mtrap-precision=TRAP-PRECISION'
       In the Alpha architecture, floating-point traps are imprecise.
       This means without software assistance it is impossible to recover
       from a floating trap and program execution normally needs to be
!      terminated.  GCC can generate code that can assist operating
!      system trap handlers in determining the exact location that caused
!      a floating-point trap.  Depending on the requirements of an
       application, different levels of precisions can be selected:
  
!     `p'
            Program precision.  This option is the default and means a
            trap handler can only identify which program caused a
            floating-point exception.
  
!     `f'
            Function precision.  The trap handler can determine the
            function that caused a floating-point exception.
  
!     `i'
            Instruction precision.  The trap handler can determine the
            exact instruction that caused a floating-point exception.
  
       Other Alpha compilers provide the equivalent options called
!      `-scope_safe' and `-resumption_safe'.
  
! `-mieee-conformant'
       This option marks the generated code as IEEE conformant.  You must
!      not use this option unless you also specify `-mtrap-precision=i'
!      and either `-mfp-trap-mode=su' or `-mfp-trap-mode=sui'.  Its only
!      effect is to emit the line `.eflag 48' in the function prologue of
       the generated assembly file.
  
! `-mbuild-constants'
!      Normally GCC examines a 32- or 64-bit integer constant to see if
!      it can construct it from smaller constants in two or three
       instructions.  If it cannot, it outputs the constant as a literal
       and generates code to load it from the data segment at run time.
  
--- 14716,14858 ----
  3.18.11 DEC Alpha Options
  -------------------------
  
! These '-m' options are defined for the DEC Alpha implementations:
  
! '-mno-soft-float'
! '-msoft-float'
       Use (do not use) the hardware floating-point instructions for
!      floating-point operations.  When '-msoft-float' is specified,
!      functions in 'libgcc.a' are used to perform floating-point
       operations.  Unless they are replaced by routines that emulate the
       floating-point operations, or compiled in such a way as to call
       such emulations routines, these routines issue floating-point
!      operations.  If you are compiling for an Alpha without
       floating-point operations, you must ensure that the library is
       built so as not to call them.
  
       Note that Alpha implementations without floating-point operations
       are required to have floating-point registers.
  
! '-mfp-reg'
! '-mno-fp-regs'
       Generate code that uses (does not use) the floating-point register
!      set.  '-mno-fp-regs' implies '-msoft-float'.  If the floating-point
       register set is not used, floating-point operands are passed in
       integer registers as if they were integers and floating-point
!      results are passed in '$0' instead of '$f0'.  This is a
       non-standard calling sequence, so any function with a
       floating-point argument or return value called by code compiled
!      with '-mno-fp-regs' must also be compiled with that option.
  
       A typical use of this option is building a kernel that does not
       use, and hence need not save and restore, any floating-point
       registers.
  
! '-mieee'
!      The Alpha architecture implements floating-point hardware optimized
!      for maximum performance.  It is mostly compliant with the IEEE
!      floating-point standard.  However, for full compliance, software
!      assistance is required.  This option generates code fully
       IEEE-compliant code _except_ that the INEXACT-FLAG is not
       maintained (see below).  If this option is turned on, the
!      preprocessor macro '_IEEE_FP' is defined during compilation.  The
       resulting code is less efficient but is able to correctly support
       denormalized numbers and exceptional IEEE values such as
       not-a-number and plus/minus infinity.  Other Alpha compilers call
!      this option '-ieee_with_no_inexact'.
  
! '-mieee-with-inexact'
!      This is like '-mieee' except the generated code also maintains the
       IEEE INEXACT-FLAG.  Turning on this option causes the generated
       code to implement fully-compliant IEEE math.  In addition to
!      '_IEEE_FP', '_IEEE_FP_EXACT' is defined as a preprocessor macro.
       On some Alpha implementations the resulting code may execute
       significantly slower than the code generated by default.  Since
       there is very little code that depends on the INEXACT-FLAG, you
       should normally not specify this option.  Other Alpha compilers
!      call this option '-ieee_with_inexact'.
  
! '-mfp-trap-mode=TRAP-MODE'
       This option controls what floating-point related traps are enabled.
!      Other Alpha compilers call this option '-fptm TRAP-MODE'.  The trap
!      mode can be set to one of four values:
  
!      'n'
!           This is the default (normal) setting.  The only traps that are
!           enabled are the ones that cannot be disabled in software
            (e.g., division by zero trap).
  
!      'u'
!           In addition to the traps enabled by 'n', underflow traps are
            enabled as well.
  
!      'su'
!           Like 'u', but the instructions are marked to be safe for
            software completion (see Alpha architecture manual for
            details).
  
!      'sui'
!           Like 'su', but inexact traps are enabled as well.
  
! '-mfp-rounding-mode=ROUNDING-MODE'
       Selects the IEEE rounding mode.  Other Alpha compilers call this
!      option '-fprm ROUNDING-MODE'.  The ROUNDING-MODE can be one of:
  
!      'n'
!           Normal IEEE rounding mode.  Floating-point numbers are rounded
!           towards the nearest machine number or towards the even machine
!           number in case of a tie.
  
!      'm'
            Round towards minus infinity.
  
!      'c'
            Chopped rounding mode.  Floating-point numbers are rounded
            towards zero.
  
!      'd'
            Dynamic rounding mode.  A field in the floating-point control
            register (FPCR, see Alpha architecture reference manual)
            controls the rounding mode in effect.  The C library
            initializes this register for rounding towards plus infinity.
!           Thus, unless your program modifies the FPCR, 'd' corresponds
            to round towards plus infinity.
  
! '-mtrap-precision=TRAP-PRECISION'
       In the Alpha architecture, floating-point traps are imprecise.
       This means without software assistance it is impossible to recover
       from a floating trap and program execution normally needs to be
!      terminated.  GCC can generate code that can assist operating system
!      trap handlers in determining the exact location that caused a
!      floating-point trap.  Depending on the requirements of an
       application, different levels of precisions can be selected:
  
!      'p'
            Program precision.  This option is the default and means a
            trap handler can only identify which program caused a
            floating-point exception.
  
!      'f'
            Function precision.  The trap handler can determine the
            function that caused a floating-point exception.
  
!      'i'
            Instruction precision.  The trap handler can determine the
            exact instruction that caused a floating-point exception.
  
       Other Alpha compilers provide the equivalent options called
!      '-scope_safe' and '-resumption_safe'.
  
! '-mieee-conformant'
       This option marks the generated code as IEEE conformant.  You must
!      not use this option unless you also specify '-mtrap-precision=i'
!      and either '-mfp-trap-mode=su' or '-mfp-trap-mode=sui'.  Its only
!      effect is to emit the line '.eflag 48' in the function prologue of
       the generated assembly file.
  
! '-mbuild-constants'
!      Normally GCC examines a 32- or 64-bit integer constant to see if it
!      can construct it from smaller constants in two or three
       instructions.  If it cannot, it outputs the constant as a literal
       and generates code to load it from the data segment at run time.
  
*************** These `-m' options are defined for the D
*** 14972,15110 ****
       before it can find the variables and constants in its own data
       segment.
  
! `-mbwx'
! `-mno-bwx'
! `-mcix'
! `-mno-cix'
! `-mfix'
! `-mno-fix'
! `-mmax'
! `-mno-max'
       Indicate whether GCC should generate code to use the optional BWX,
       CIX, FIX and MAX instruction sets.  The default is to use the
!      instruction sets supported by the CPU type specified via `-mcpu='
       option or that of the CPU on which GCC was built if none is
       specified.
  
! `-mfloat-vax'
! `-mfloat-ieee'
       Generate code that uses (does not use) VAX F and G floating-point
       arithmetic instead of IEEE single and double precision.
  
! `-mexplicit-relocs'
! `-mno-explicit-relocs'
       Older Alpha assemblers provided no way to generate symbol
       relocations except via assembler macros.  Use of these macros does
       not allow optimal instruction scheduling.  GNU binutils as of
       version 2.12 supports a new syntax that allows the compiler to
       explicitly mark which relocations should apply to which
       instructions.  This option is mostly useful for debugging, as GCC
!      detects the capabilities of the assembler when it is built and
!      sets the default accordingly.
  
! `-msmall-data'
! `-mlarge-data'
!      When `-mexplicit-relocs' is in effect, static data is accessed via
!      "gp-relative" relocations.  When `-msmall-data' is used, objects 8
       bytes long or smaller are placed in a "small data area" (the
!      `.sdata' and `.sbss' sections) and are accessed via 16-bit
!      relocations off of the `$gp' register.  This limits the size of
!      the small data area to 64KB, but allows the variables to be
!      directly accessed via a single instruction.
  
!      The default is `-mlarge-data'.  With this option the data area is
       limited to just below 2GB.  Programs that require more than 2GB of
!      data must use `malloc' or `mmap' to allocate the data in the heap
       instead of in the program's data segment.
  
!      When generating code for shared libraries, `-fpic' implies
!      `-msmall-data' and `-fPIC' implies `-mlarge-data'.
  
! `-msmall-text'
! `-mlarge-text'
!      When `-msmall-text' is used, the compiler assumes that the code of
       the entire program (or shared library) fits in 4MB, and is thus
!      reachable with a branch instruction.  When `-msmall-data' is used,
!      the compiler can assume that all local symbols share the same
!      `$gp' value, and thus reduce the number of instructions required
!      for a function call from 4 to 1.
  
!      The default is `-mlarge-text'.
  
! `-mcpu=CPU_TYPE'
       Set the instruction set and instruction scheduling parameters for
!      machine type CPU_TYPE.  You can specify either the `EV' style name
       or the corresponding chip number.  GCC supports scheduling
       parameters for the EV4, EV5 and EV6 family of processors and
       chooses the default values for the instruction set from the
!      processor you specify.  If you do not specify a processor type,
!      GCC defaults to the processor on which the compiler was built.
  
       Supported values for CPU_TYPE are
  
!     `ev4'
!     `ev45'
!     `21064'
            Schedules as an EV4 and has no instruction set extensions.
  
!     `ev5'
!     `21164'
            Schedules as an EV5 and has no instruction set extensions.
  
!     `ev56'
!     `21164a'
            Schedules as an EV5 and supports the BWX extension.
  
!     `pca56'
!     `21164pc'
!     `21164PC'
            Schedules as an EV5 and supports the BWX and MAX extensions.
  
!     `ev6'
!     `21264'
            Schedules as an EV6 and supports the BWX, FIX, and MAX
            extensions.
  
!     `ev67'
!     `21264a'
            Schedules as an EV6 and supports the BWX, CIX, FIX, and MAX
            extensions.
  
!      Native toolchains also support the value `native', which selects
       the best architecture option for the host processor.
!      `-mcpu=native' has no effect if GCC does not recognize the
       processor.
  
! `-mtune=CPU_TYPE'
       Set only the instruction scheduling parameters for machine type
       CPU_TYPE.  The instruction set is not changed.
  
!      Native toolchains also support the value `native', which selects
       the best architecture option for the host processor.
!      `-mtune=native' has no effect if GCC does not recognize the
       processor.
  
! `-mmemory-latency=TIME'
       Sets the latency the scheduler should assume for typical memory
       references as seen by the application.  This number is highly
!      dependent on the memory access patterns used by the application
!      and the size of the external cache on the machine.
  
       Valid options for TIME are
  
!     `NUMBER'
            A decimal number representing clock cycles.
  
!     `L1'
!     `L2'
!     `L3'
!     `main'
            The compiler contains estimates of the number of clock cycles
            for "typical" EV4 & EV5 hardware for the Level 1, 2 & 3 caches
            (also called Dcache, Scache, and Bcache), as well as to main
            memory.  Note that L3 is only valid for EV5.
  
- 
  
  File: gcc.info,  Node: FR30 Options,  Next: FT32 Options,  Prev: DEC Alpha Options,  Up: Submodel Options
  
--- 14865,15002 ----
       before it can find the variables and constants in its own data
       segment.
  
! '-mbwx'
! '-mno-bwx'
! '-mcix'
! '-mno-cix'
! '-mfix'
! '-mno-fix'
! '-mmax'
! '-mno-max'
       Indicate whether GCC should generate code to use the optional BWX,
       CIX, FIX and MAX instruction sets.  The default is to use the
!      instruction sets supported by the CPU type specified via '-mcpu='
       option or that of the CPU on which GCC was built if none is
       specified.
  
! '-mfloat-vax'
! '-mfloat-ieee'
       Generate code that uses (does not use) VAX F and G floating-point
       arithmetic instead of IEEE single and double precision.
  
! '-mexplicit-relocs'
! '-mno-explicit-relocs'
       Older Alpha assemblers provided no way to generate symbol
       relocations except via assembler macros.  Use of these macros does
       not allow optimal instruction scheduling.  GNU binutils as of
       version 2.12 supports a new syntax that allows the compiler to
       explicitly mark which relocations should apply to which
       instructions.  This option is mostly useful for debugging, as GCC
!      detects the capabilities of the assembler when it is built and sets
!      the default accordingly.
  
! '-msmall-data'
! '-mlarge-data'
!      When '-mexplicit-relocs' is in effect, static data is accessed via
!      "gp-relative" relocations.  When '-msmall-data' is used, objects 8
       bytes long or smaller are placed in a "small data area" (the
!      '.sdata' and '.sbss' sections) and are accessed via 16-bit
!      relocations off of the '$gp' register.  This limits the size of the
!      small data area to 64KB, but allows the variables to be directly
!      accessed via a single instruction.
  
!      The default is '-mlarge-data'.  With this option the data area is
       limited to just below 2GB.  Programs that require more than 2GB of
!      data must use 'malloc' or 'mmap' to allocate the data in the heap
       instead of in the program's data segment.
  
!      When generating code for shared libraries, '-fpic' implies
!      '-msmall-data' and '-fPIC' implies '-mlarge-data'.
  
! '-msmall-text'
! '-mlarge-text'
!      When '-msmall-text' is used, the compiler assumes that the code of
       the entire program (or shared library) fits in 4MB, and is thus
!      reachable with a branch instruction.  When '-msmall-data' is used,
!      the compiler can assume that all local symbols share the same '$gp'
!      value, and thus reduce the number of instructions required for a
!      function call from 4 to 1.
  
!      The default is '-mlarge-text'.
  
! '-mcpu=CPU_TYPE'
       Set the instruction set and instruction scheduling parameters for
!      machine type CPU_TYPE.  You can specify either the 'EV' style name
       or the corresponding chip number.  GCC supports scheduling
       parameters for the EV4, EV5 and EV6 family of processors and
       chooses the default values for the instruction set from the
!      processor you specify.  If you do not specify a processor type, GCC
!      defaults to the processor on which the compiler was built.
  
       Supported values for CPU_TYPE are
  
!      'ev4'
!      'ev45'
!      '21064'
            Schedules as an EV4 and has no instruction set extensions.
  
!      'ev5'
!      '21164'
            Schedules as an EV5 and has no instruction set extensions.
  
!      'ev56'
!      '21164a'
            Schedules as an EV5 and supports the BWX extension.
  
!      'pca56'
!      '21164pc'
!      '21164PC'
            Schedules as an EV5 and supports the BWX and MAX extensions.
  
!      'ev6'
!      '21264'
            Schedules as an EV6 and supports the BWX, FIX, and MAX
            extensions.
  
!      'ev67'
!      '21264a'
            Schedules as an EV6 and supports the BWX, CIX, FIX, and MAX
            extensions.
  
!      Native toolchains also support the value 'native', which selects
       the best architecture option for the host processor.
!      '-mcpu=native' has no effect if GCC does not recognize the
       processor.
  
! '-mtune=CPU_TYPE'
       Set only the instruction scheduling parameters for machine type
       CPU_TYPE.  The instruction set is not changed.
  
!      Native toolchains also support the value 'native', which selects
       the best architecture option for the host processor.
!      '-mtune=native' has no effect if GCC does not recognize the
       processor.
  
! '-mmemory-latency=TIME'
       Sets the latency the scheduler should assume for typical memory
       references as seen by the application.  This number is highly
!      dependent on the memory access patterns used by the application and
!      the size of the external cache on the machine.
  
       Valid options for TIME are
  
!      'NUMBER'
            A decimal number representing clock cycles.
  
!      'L1'
!      'L2'
!      'L3'
!      'main'
            The compiler contains estimates of the number of clock cycles
            for "typical" EV4 & EV5 hardware for the Level 1, 2 & 3 caches
            (also called Dcache, Scache, and Bcache), as well as to main
            memory.  Note that L3 is only valid for EV5.
  
  
  File: gcc.info,  Node: FR30 Options,  Next: FT32 Options,  Prev: DEC Alpha Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: FR30 Options,  Ne
*** 15113,15129 ****
  
  These options are defined specifically for the FR30 port.
  
! `-msmall-model'
       Use the small address space model.  This can produce smaller code,
       but it does assume that all symbolic values and addresses fit into
       a 20-bit range.
  
! `-mno-lsim'
       Assume that runtime support has been provided and so there is no
!      need to include the simulator library (`libsim.a') on the linker
       command line.
  
- 
  
  File: gcc.info,  Node: FT32 Options,  Next: FRV Options,  Prev: FR30 Options,  Up: Submodel Options
  
--- 15005,15020 ----
  
  These options are defined specifically for the FR30 port.
  
! '-msmall-model'
       Use the small address space model.  This can produce smaller code,
       but it does assume that all symbolic values and addresses fit into
       a 20-bit range.
  
! '-mno-lsim'
       Assume that runtime support has been provided and so there is no
!      need to include the simulator library ('libsim.a') on the linker
       command line.
  
  
  File: gcc.info,  Node: FT32 Options,  Next: FRV Options,  Prev: FR30 Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: FT32 Options,  Ne
*** 15132,15368 ****
  
  These options are defined specifically for the FT32 port.
  
! `-msim'
       Specifies that the program will be run on the simulator.  This
       causes an alternate runtime startup and library to be linked.  You
       must not use this option when generating programs that will run on
       real hardware; you must provide your own runtime library for
       whatever I/O functions are needed.
  
! `-mlra'
       Enable Local Register Allocation.  This is still experimental for
       FT32, so by default the compiler uses standard reload.
  
! `-mnodiv'
       Do not use div and mod instructions.
  
- 
  
  File: gcc.info,  Node: FRV Options,  Next: GNU/Linux Options,  Prev: FT32 Options,  Up: Submodel Options
  
  3.18.14 FRV Options
  -------------------
  
! `-mgpr-32'
       Only use the first 32 general-purpose registers.
  
! `-mgpr-64'
       Use all 64 general-purpose registers.
  
! `-mfpr-32'
       Use only the first 32 floating-point registers.
  
! `-mfpr-64'
       Use all 64 floating-point registers.
  
! `-mhard-float'
       Use hardware instructions for floating-point operations.
  
! `-msoft-float'
       Use library routines for floating-point operations.
  
! `-malloc-cc'
       Dynamically allocate condition code registers.
  
! `-mfixed-cc'
       Do not try to dynamically allocate condition code registers, only
!      use `icc0' and `fcc0'.
  
- `-mdword'
       Change ABI to use double word insns.
  
! `-mno-dword'
       Do not use double word instructions.
  
! `-mdouble'
       Use floating-point double instructions.
  
! `-mno-double'
       Do not use floating-point double instructions.
  
! `-mmedia'
       Use media instructions.
  
! `-mno-media'
       Do not use media instructions.
  
! `-mmuladd'
       Use multiply and add/subtract instructions.
  
! `-mno-muladd'
       Do not use multiply and add/subtract instructions.
  
! `-mfdpic'
       Select the FDPIC ABI, which uses function descriptors to represent
       pointers to functions.  Without any PIC/PIE-related options, it
!      implies `-fPIE'.  With `-fpic' or `-fpie', it assumes GOT entries
!      and small data are within a 12-bit range from the GOT base
!      address; with `-fPIC' or `-fPIE', GOT offsets are computed with 32
!      bits.  With a `bfin-elf' target, this option implies `-msim'.
  
- `-minline-plt'
       Enable inlining of PLT entries in function calls to functions that
!      are not known to bind locally.  It has no effect without `-mfdpic'.
       It's enabled by default if optimizing for speed and compiling for
!      shared libraries (i.e., `-fPIC' or `-fpic'), or when an
!      optimization option such as `-O3' or above is present in the
       command line.
  
! `-mTLS'
       Assume a large TLS segment when generating thread-local code.
  
! `-mtls'
       Do not assume a large TLS segment when generating thread-local
       code.
  
! `-mgprel-ro'
!      Enable the use of `GPREL' relocations in the FDPIC ABI for data
       that is known to be in read-only sections.  It's enabled by
!      default, except for `-fpic' or `-fpie': even though it may help
       make the global offset table smaller, it trades 1 instruction for
!      4.  With `-fPIC' or `-fPIE', it trades 3 instructions for 4, one
!      of which may be shared by multiple symbols, and it avoids the need
!      for a GOT entry for the referenced symbol, so it's more likely to
!      be a win.  If it is not, `-mno-gprel-ro' can be used to disable it.
  
- `-multilib-library-pic'
       Link with the (library, not FD) pic libraries.  It's implied by
!      `-mlibrary-pic', as well as by `-fPIC' and `-fpic' without
!      `-mfdpic'.  You should never have to use it explicitly.
  
- `-mlinked-fp'
       Follow the EABI requirement of always creating a frame pointer
       whenever a stack frame is allocated.  This option is enabled by
!      default and can be disabled with `-mno-linked-fp'.
  
- `-mlong-calls'
       Use indirect addressing to call functions outside the current
       compilation unit.  This allows the functions to be placed anywhere
       within the 32-bit address space.
  
! `-malign-labels'
       Try to align labels to an 8-byte boundary by inserting NOPs into
       the previous packet.  This option only has an effect when VLIW
       packing is enabled.  It doesn't create new packets; it merely adds
       NOPs to existing ones.
  
! `-mlibrary-pic'
       Generate position-independent EABI code.
  
! `-macc-4'
       Use only the first four media accumulator registers.
  
! `-macc-8'
       Use all eight media accumulator registers.
  
! `-mpack'
       Pack VLIW instructions.
  
! `-mno-pack'
       Do not pack VLIW instructions.
  
! `-mno-eflags'
       Do not mark ABI switches in e_flags.
  
! `-mcond-move'
       Enable the use of conditional-move instructions (default).
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mno-cond-move'
       Disable the use of conditional-move instructions.
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mscc'
       Enable the use of conditional set instructions (default).
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mno-scc'
       Disable the use of conditional set instructions.
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mcond-exec'
       Enable the use of conditional execution (default).
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mno-cond-exec'
       Disable the use of conditional execution.
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mvliw-branch'
       Run a pass to pack branches into VLIW instructions (default).
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mno-vliw-branch'
       Do not run a pass to pack branches into VLIW instructions.
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
! `-mmulti-cond-exec'
!      Enable optimization of `&&' and `||' in conditional execution
       (default).
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
! `-mno-multi-cond-exec'
!      Disable optimization of `&&' and `||' in conditional execution.
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mnested-cond-exec'
       Enable nested conditional execution optimizations (default).
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
- `-mno-nested-cond-exec'
       Disable nested conditional execution optimizations.
  
!      This switch is mainly for debugging the compiler and will likely
!      be removed in a future version.
  
! `-moptimize-membar'
!      This switch removes redundant `membar' instructions from the
       compiler-generated code.  It is enabled by default.
  
! `-mno-optimize-membar'
!      This switch disables the automatic removal of redundant `membar'
       instructions from the generated code.
  
! `-mtomcat-stats'
       Cause gas to print out tomcat statistics.
  
! `-mcpu=CPU'
!      Select the processor type for which to generate code.  Possible
!      values are `frv', `fr550', `tomcat', `fr500', `fr450', `fr405',
!      `fr400', `fr300' and `simple'.
  
  
  
  File: gcc.info,  Node: GNU/Linux Options,  Next: H8/300 Options,  Prev: FRV Options,  Up: Submodel Options
--- 15023,15304 ----
  
  These options are defined specifically for the FT32 port.
  
! '-msim'
       Specifies that the program will be run on the simulator.  This
       causes an alternate runtime startup and library to be linked.  You
       must not use this option when generating programs that will run on
       real hardware; you must provide your own runtime library for
       whatever I/O functions are needed.
  
! '-mlra'
       Enable Local Register Allocation.  This is still experimental for
       FT32, so by default the compiler uses standard reload.
  
! '-mnodiv'
       Do not use div and mod instructions.
  
  
  File: gcc.info,  Node: FRV Options,  Next: GNU/Linux Options,  Prev: FT32 Options,  Up: Submodel Options
  
  3.18.14 FRV Options
  -------------------
  
! '-mgpr-32'
! 
       Only use the first 32 general-purpose registers.
  
! '-mgpr-64'
! 
       Use all 64 general-purpose registers.
  
! '-mfpr-32'
! 
       Use only the first 32 floating-point registers.
  
! '-mfpr-64'
! 
       Use all 64 floating-point registers.
  
! '-mhard-float'
! 
       Use hardware instructions for floating-point operations.
  
! '-msoft-float'
! 
       Use library routines for floating-point operations.
  
! '-malloc-cc'
! 
       Dynamically allocate condition code registers.
  
! '-mfixed-cc'
! 
       Do not try to dynamically allocate condition code registers, only
!      use 'icc0' and 'fcc0'.
! 
! '-mdword'
  
       Change ABI to use double word insns.
  
! '-mno-dword'
! 
       Do not use double word instructions.
  
! '-mdouble'
! 
       Use floating-point double instructions.
  
! '-mno-double'
! 
       Do not use floating-point double instructions.
  
! '-mmedia'
! 
       Use media instructions.
  
! '-mno-media'
! 
       Do not use media instructions.
  
! '-mmuladd'
! 
       Use multiply and add/subtract instructions.
  
! '-mno-muladd'
! 
       Do not use multiply and add/subtract instructions.
  
! '-mfdpic'
! 
       Select the FDPIC ABI, which uses function descriptors to represent
       pointers to functions.  Without any PIC/PIE-related options, it
!      implies '-fPIE'.  With '-fpic' or '-fpie', it assumes GOT entries
!      and small data are within a 12-bit range from the GOT base address;
!      with '-fPIC' or '-fPIE', GOT offsets are computed with 32 bits.
!      With a 'bfin-elf' target, this option implies '-msim'.
! 
! '-minline-plt'
  
       Enable inlining of PLT entries in function calls to functions that
!      are not known to bind locally.  It has no effect without '-mfdpic'.
       It's enabled by default if optimizing for speed and compiling for
!      shared libraries (i.e., '-fPIC' or '-fpic'), or when an
!      optimization option such as '-O3' or above is present in the
       command line.
  
! '-mTLS'
! 
       Assume a large TLS segment when generating thread-local code.
  
! '-mtls'
! 
       Do not assume a large TLS segment when generating thread-local
       code.
  
! '-mgprel-ro'
! 
!      Enable the use of 'GPREL' relocations in the FDPIC ABI for data
       that is known to be in read-only sections.  It's enabled by
!      default, except for '-fpic' or '-fpie': even though it may help
       make the global offset table smaller, it trades 1 instruction for
!      4.  With '-fPIC' or '-fPIE', it trades 3 instructions for 4, one of
!      which may be shared by multiple symbols, and it avoids the need for
!      a GOT entry for the referenced symbol, so it's more likely to be a
!      win.  If it is not, '-mno-gprel-ro' can be used to disable it.
! 
! '-multilib-library-pic'
  
       Link with the (library, not FD) pic libraries.  It's implied by
!      '-mlibrary-pic', as well as by '-fPIC' and '-fpic' without
!      '-mfdpic'.  You should never have to use it explicitly.
! 
! '-mlinked-fp'
  
       Follow the EABI requirement of always creating a frame pointer
       whenever a stack frame is allocated.  This option is enabled by
!      default and can be disabled with '-mno-linked-fp'.
! 
! '-mlong-calls'
  
       Use indirect addressing to call functions outside the current
       compilation unit.  This allows the functions to be placed anywhere
       within the 32-bit address space.
  
! '-malign-labels'
! 
       Try to align labels to an 8-byte boundary by inserting NOPs into
       the previous packet.  This option only has an effect when VLIW
       packing is enabled.  It doesn't create new packets; it merely adds
       NOPs to existing ones.
  
! '-mlibrary-pic'
! 
       Generate position-independent EABI code.
  
! '-macc-4'
! 
       Use only the first four media accumulator registers.
  
! '-macc-8'
! 
       Use all eight media accumulator registers.
  
! '-mpack'
! 
       Pack VLIW instructions.
  
! '-mno-pack'
! 
       Do not pack VLIW instructions.
  
! '-mno-eflags'
! 
       Do not mark ABI switches in e_flags.
  
! '-mcond-move'
! 
       Enable the use of conditional-move instructions (default).
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mno-cond-move'
  
       Disable the use of conditional-move instructions.
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mscc'
  
       Enable the use of conditional set instructions (default).
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mno-scc'
  
       Disable the use of conditional set instructions.
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mcond-exec'
  
       Enable the use of conditional execution (default).
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mno-cond-exec'
  
       Disable the use of conditional execution.
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mvliw-branch'
  
       Run a pass to pack branches into VLIW instructions (default).
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mno-vliw-branch'
  
       Do not run a pass to pack branches into VLIW instructions.
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
  
! '-mmulti-cond-exec'
! 
!      Enable optimization of '&&' and '||' in conditional execution
       (default).
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
  
! '-mno-multi-cond-exec'
  
!      Disable optimization of '&&' and '||' in conditional execution.
! 
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mnested-cond-exec'
  
       Enable nested conditional execution optimizations (default).
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
! 
! '-mno-nested-cond-exec'
  
       Disable nested conditional execution optimizations.
  
!      This switch is mainly for debugging the compiler and will likely be
!      removed in a future version.
  
! '-moptimize-membar'
! 
!      This switch removes redundant 'membar' instructions from the
       compiler-generated code.  It is enabled by default.
  
! '-mno-optimize-membar'
! 
!      This switch disables the automatic removal of redundant 'membar'
       instructions from the generated code.
  
! '-mtomcat-stats'
! 
       Cause gas to print out tomcat statistics.
  
! '-mcpu=CPU'
  
+      Select the processor type for which to generate code.  Possible
+      values are 'frv', 'fr550', 'tomcat', 'fr500', 'fr450', 'fr405',
+      'fr400', 'fr300' and 'simple'.
  
  
  File: gcc.info,  Node: GNU/Linux Options,  Next: H8/300 Options,  Prev: FRV Options,  Up: Submodel Options
*************** File: gcc.info,  Node: GNU/Linux Options
*** 15370,15457 ****
  3.18.15 GNU/Linux Options
  -------------------------
  
! These `-m' options are defined for GNU/Linux targets:
  
! `-mglibc'
       Use the GNU C library.  This is the default except on
!      `*-*-linux-*uclibc*', `*-*-linux-*musl*' and `*-*-linux-*android*'
       targets.
  
! `-muclibc'
!      Use uClibc C library.  This is the default on `*-*-linux-*uclibc*'
       targets.
  
! `-mmusl'
!      Use the musl C library.  This is the default on `*-*-linux-*musl*'
       targets.
  
! `-mbionic'
!      Use Bionic C library.  This is the default on
!      `*-*-linux-*android*' targets.
  
! `-mandroid'
!      Compile code compatible with Android platform.  This is the
!      default on `*-*-linux-*android*' targets.
  
!      When compiling, this option enables `-mbionic', `-fPIC',
!      `-fno-exceptions' and `-fno-rtti' by default.  When linking, this
       option makes the GCC driver pass Android-specific options to the
       linker.  Finally, this option causes the preprocessor macro
!      `__ANDROID__' to be defined.
  
! `-tno-android-cc'
!      Disable compilation effects of `-mandroid', i.e., do not enable
!      `-mbionic', `-fPIC', `-fno-exceptions' and `-fno-rtti' by default.
  
! `-tno-android-ld'
!      Disable linking effects of `-mandroid', i.e., pass standard Linux
       linking options to the linker.
  
- 
  
  File: gcc.info,  Node: H8/300 Options,  Next: HPPA Options,  Prev: GNU/Linux Options,  Up: Submodel Options
  
  3.18.16 H8/300 Options
  ----------------------
  
! These `-m' options are defined for the H8/300 implementations:
  
! `-mrelax'
       Shorten some address references at link time, when possible; uses
!      the linker option `-relax'.  *Note `ld' and the H8/300:
!      (ld)H8/300, for a fuller description.
  
! `-mh'
       Generate code for the H8/300H.
  
! `-ms'
       Generate code for the H8S.
  
! `-mn'
       Generate code for the H8S and H8/300H in the normal mode.  This
!      switch must be used either with `-mh' or `-ms'.
  
! `-ms2600'
       Generate code for the H8S/2600.  This switch must be used with
!      `-ms'.
  
! `-mexr'
       Extended registers are stored on stack before execution of function
!      with monitor attribute. Default option is `-mexr'.  This option is
       valid only for H8S targets.
  
! `-mno-exr'
       Extended registers are not stored on stack before execution of
!      function with monitor attribute. Default option is `-mno-exr'.
       This option is valid only for H8S targets.
  
! `-mint32'
!      Make `int' data 32 bits by default.
  
! `-malign-300'
       On the H8/300H and H8S, use the same alignment rules as for the
       H8/300.  The default for the H8/300H and H8S is to align longs and
!      floats on 4-byte boundaries.  `-malign-300' causes them to be
       aligned on 2-byte boundaries.  This option has no effect on the
       H8/300.
  
--- 15306,15392 ----
  3.18.15 GNU/Linux Options
  -------------------------
  
! These '-m' options are defined for GNU/Linux targets:
  
! '-mglibc'
       Use the GNU C library.  This is the default except on
!      '*-*-linux-*uclibc*', '*-*-linux-*musl*' and '*-*-linux-*android*'
       targets.
  
! '-muclibc'
!      Use uClibc C library.  This is the default on '*-*-linux-*uclibc*'
       targets.
  
! '-mmusl'
!      Use the musl C library.  This is the default on '*-*-linux-*musl*'
       targets.
  
! '-mbionic'
!      Use Bionic C library.  This is the default on '*-*-linux-*android*'
!      targets.
  
! '-mandroid'
!      Compile code compatible with Android platform.  This is the default
!      on '*-*-linux-*android*' targets.
  
!      When compiling, this option enables '-mbionic', '-fPIC',
!      '-fno-exceptions' and '-fno-rtti' by default.  When linking, this
       option makes the GCC driver pass Android-specific options to the
       linker.  Finally, this option causes the preprocessor macro
!      '__ANDROID__' to be defined.
  
! '-tno-android-cc'
!      Disable compilation effects of '-mandroid', i.e., do not enable
!      '-mbionic', '-fPIC', '-fno-exceptions' and '-fno-rtti' by default.
  
! '-tno-android-ld'
!      Disable linking effects of '-mandroid', i.e., pass standard Linux
       linking options to the linker.
  
  
  File: gcc.info,  Node: H8/300 Options,  Next: HPPA Options,  Prev: GNU/Linux Options,  Up: Submodel Options
  
  3.18.16 H8/300 Options
  ----------------------
  
! These '-m' options are defined for the H8/300 implementations:
  
! '-mrelax'
       Shorten some address references at link time, when possible; uses
!      the linker option '-relax'.  *Note 'ld' and the H8/300: (ld)H8/300,
!      for a fuller description.
  
! '-mh'
       Generate code for the H8/300H.
  
! '-ms'
       Generate code for the H8S.
  
! '-mn'
       Generate code for the H8S and H8/300H in the normal mode.  This
!      switch must be used either with '-mh' or '-ms'.
  
! '-ms2600'
       Generate code for the H8S/2600.  This switch must be used with
!      '-ms'.
  
! '-mexr'
       Extended registers are stored on stack before execution of function
!      with monitor attribute.  Default option is '-mexr'.  This option is
       valid only for H8S targets.
  
! '-mno-exr'
       Extended registers are not stored on stack before execution of
!      function with monitor attribute.  Default option is '-mno-exr'.
       This option is valid only for H8S targets.
  
! '-mint32'
!      Make 'int' data 32 bits by default.
  
! '-malign-300'
       On the H8/300H and H8S, use the same alignment rules as for the
       H8/300.  The default for the H8/300H and H8S is to align longs and
!      floats on 4-byte boundaries.  '-malign-300' causes them to be
       aligned on 2-byte boundaries.  This option has no effect on the
       H8/300.
  
*************** File: gcc.info,  Node: HPPA Options,  Ne
*** 15461,15601 ****
  3.18.17 HPPA Options
  --------------------
  
! These `-m' options are defined for the HPPA family of computers:
  
! `-march=ARCHITECTURE-TYPE'
       Generate code for the specified architecture.  The choices for
!      ARCHITECTURE-TYPE are `1.0' for PA 1.0, `1.1' for PA 1.1, and
!      `2.0' for PA 2.0 processors.  Refer to `/usr/lib/sched.models' on
!      an HP-UX system to determine the proper architecture option for
!      your machine.  Code compiled for lower numbered architectures runs
!      on higher numbered architectures, but not the other way around.
  
! `-mpa-risc-1-0'
! `-mpa-risc-1-1'
! `-mpa-risc-2-0'
!      Synonyms for `-march=1.0', `-march=1.1', and `-march=2.0'
       respectively.
  
! `-mjump-in-delay'
       This option is ignored and provided for compatibility purposes
       only.
  
! `-mdisable-fpregs'
       Prevent floating-point registers from being used in any manner.
       This is necessary for compiling kernels that perform lazy context
       switching of floating-point registers.  If you use this option and
       attempt to perform floating-point operations, the compiler aborts.
  
! `-mdisable-indexing'
       Prevent the compiler from using indexing address modes.  This
       avoids some rather obscure problems when compiling MIG generated
       code under MACH.
  
! `-mno-space-regs'
!      Generate code that assumes the target has no space registers.
!      This allows GCC to generate faster indirect calls and use unscaled
!      index address modes.
  
       Such code is suitable for level 0 PA systems and kernels.
  
! `-mfast-indirect-calls'
       Generate code that assumes calls never cross space boundaries.
       This allows GCC to emit code that performs faster indirect calls.
  
       This option does not work in the presence of shared libraries or
       nested functions.
  
! `-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator cannot use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! `-mlong-load-store'
       Generate 3-instruction load and store sequences as sometimes
!      required by the HP-UX 10 linker.  This is equivalent to the `+k'
       option to the HP compilers.
  
! `-mportable-runtime'
       Use the portable calling conventions proposed by HP for ELF
       systems.
  
! `-mgas'
       Enable the use of assembler directives only GAS understands.
  
! `-mschedule=CPU-TYPE'
       Schedule code according to the constraints for the machine type
!      CPU-TYPE.  The choices for CPU-TYPE are `700' `7100', `7100LC',
!      `7200', `7300' and `8000'.  Refer to `/usr/lib/sched.models' on an
       HP-UX system to determine the proper scheduling option for your
!      machine.  The default scheduling is `8000'.
  
! `-mlinker-opt'
       Enable the optimization pass in the HP-UX linker.  Note this makes
!      symbolic debugging impossible.  It also triggers a bug in the
!      HP-UX 8 and HP-UX 9 linkers in which they give bogus error
!      messages when linking some programs.
  
! `-msoft-float'
       Generate output containing library calls for floating point.
       *Warning:* the requisite libraries are not available for all HPPA
!      targets.  Normally the facilities of the machine's usual C
!      compiler are used, but this cannot be done directly in
!      cross-compilation.  You must make your own arrangements to provide
!      suitable library functions for cross-compilation.
  
!      `-msoft-float' changes the calling convention in the output file;
       therefore, it is only useful if you compile _all_ of a program with
!      this option.  In particular, you need to compile `libgcc.a', the
!      library that comes with GCC, with `-msoft-float' in order for this
       to work.
  
! `-msio'
!      Generate the predefine, `_SIO', for server IO.  The default is
!      `-mwsio'.  This generates the predefines, `__hp9000s700',
!      `__hp9000s700__' and `_WSIO', for workstation IO.  These options
       are available under HP-UX and HI-UX.
  
! `-mgnu-ld'
!      Use options specific to GNU `ld'.  This passes `-shared' to `ld'
       when building a shared library.  It is the default when GCC is
       configured, explicitly or implicitly, with the GNU linker.  This
!      option does not affect which `ld' is called; it only changes what
!      parameters are passed to that `ld'.  The `ld' that is called is
!      determined by the `--with-ld' configure option, GCC's program
!      search path, and finally by the user's `PATH'.  The linker used by
!      GCC can be printed using `which `gcc -print-prog-name=ld`'.  This
       option is only available on the 64-bit HP-UX GCC, i.e. configured
!      with `hppa*64*-*-hpux*'.
  
! `-mhp-ld'
!      Use options specific to HP `ld'.  This passes `-b' to `ld' when
!      building a shared library and passes `+Accept TypeMismatch' to
!      `ld' on all links.  It is the default when GCC is configured,
!      explicitly or implicitly, with the HP linker.  This option does
!      not affect which `ld' is called; it only changes what parameters
!      are passed to that `ld'.  The `ld' that is called is determined by
!      the `--with-ld' configure option, GCC's program search path, and
!      finally by the user's `PATH'.  The linker used by GCC can be
!      printed using `which `gcc -print-prog-name=ld`'.  This option is
       only available on the 64-bit HP-UX GCC, i.e. configured with
!      `hppa*64*-*-hpux*'.
  
! `-mlong-calls'
       Generate code that uses long call sequences.  This ensures that a
       call is always able to reach linker generated stubs.  The default
!      is to generate long calls only when the distance from the call
!      site to the beginning of the function or translation unit, as the
!      case may be, exceeds a predefined limit set by the branch type
!      being used.  The limits for normal calls are 7,600,000 and 240,000
!      bytes, respectively for the PA 2.0 and PA 1.X architectures.
!      Sibcalls are always limited at 240,000 bytes.
  
       Distances are measured from the beginning of functions when using
!      the `-ffunction-sections' option, or when using the `-mgas' and
!      `-mno-portable-runtime' options together under HP-UX with the SOM
       linker.
  
       It is normally not desirable to use this option as it degrades
--- 15396,15543 ----
  3.18.17 HPPA Options
  --------------------
  
! These '-m' options are defined for the HPPA family of computers:
  
! '-march=ARCHITECTURE-TYPE'
       Generate code for the specified architecture.  The choices for
!      ARCHITECTURE-TYPE are '1.0' for PA 1.0, '1.1' for PA 1.1, and '2.0'
!      for PA 2.0 processors.  Refer to '/usr/lib/sched.models' on an
!      HP-UX system to determine the proper architecture option for your
!      machine.  Code compiled for lower numbered architectures runs on
!      higher numbered architectures, but not the other way around.
  
! '-mpa-risc-1-0'
! '-mpa-risc-1-1'
! '-mpa-risc-2-0'
!      Synonyms for '-march=1.0', '-march=1.1', and '-march=2.0'
       respectively.
  
! '-mcaller-copies'
!      The caller copies function arguments passed by hidden reference.
!      This option should be used with care as it is not compatible with
!      the default 32-bit runtime.  However, only aggregates larger than
!      eight bytes are passed by hidden reference and the option provides
!      better compatibility with OpenMP.
! 
! '-mjump-in-delay'
       This option is ignored and provided for compatibility purposes
       only.
  
! '-mdisable-fpregs'
       Prevent floating-point registers from being used in any manner.
       This is necessary for compiling kernels that perform lazy context
       switching of floating-point registers.  If you use this option and
       attempt to perform floating-point operations, the compiler aborts.
  
! '-mdisable-indexing'
       Prevent the compiler from using indexing address modes.  This
       avoids some rather obscure problems when compiling MIG generated
       code under MACH.
  
! '-mno-space-regs'
!      Generate code that assumes the target has no space registers.  This
!      allows GCC to generate faster indirect calls and use unscaled index
!      address modes.
  
       Such code is suitable for level 0 PA systems and kernels.
  
! '-mfast-indirect-calls'
       Generate code that assumes calls never cross space boundaries.
       This allows GCC to emit code that performs faster indirect calls.
  
       This option does not work in the presence of shared libraries or
       nested functions.
  
! '-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator cannot use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! '-mlong-load-store'
       Generate 3-instruction load and store sequences as sometimes
!      required by the HP-UX 10 linker.  This is equivalent to the '+k'
       option to the HP compilers.
  
! '-mportable-runtime'
       Use the portable calling conventions proposed by HP for ELF
       systems.
  
! '-mgas'
       Enable the use of assembler directives only GAS understands.
  
! '-mschedule=CPU-TYPE'
       Schedule code according to the constraints for the machine type
!      CPU-TYPE.  The choices for CPU-TYPE are '700' '7100', '7100LC',
!      '7200', '7300' and '8000'.  Refer to '/usr/lib/sched.models' on an
       HP-UX system to determine the proper scheduling option for your
!      machine.  The default scheduling is '8000'.
  
! '-mlinker-opt'
       Enable the optimization pass in the HP-UX linker.  Note this makes
!      symbolic debugging impossible.  It also triggers a bug in the HP-UX
!      8 and HP-UX 9 linkers in which they give bogus error messages when
!      linking some programs.
  
! '-msoft-float'
       Generate output containing library calls for floating point.
       *Warning:* the requisite libraries are not available for all HPPA
!      targets.  Normally the facilities of the machine's usual C compiler
!      are used, but this cannot be done directly in cross-compilation.
!      You must make your own arrangements to provide suitable library
!      functions for cross-compilation.
  
!      '-msoft-float' changes the calling convention in the output file;
       therefore, it is only useful if you compile _all_ of a program with
!      this option.  In particular, you need to compile 'libgcc.a', the
!      library that comes with GCC, with '-msoft-float' in order for this
       to work.
  
! '-msio'
!      Generate the predefine, '_SIO', for server IO.  The default is
!      '-mwsio'.  This generates the predefines, '__hp9000s700',
!      '__hp9000s700__' and '_WSIO', for workstation IO.  These options
       are available under HP-UX and HI-UX.
  
! '-mgnu-ld'
!      Use options specific to GNU 'ld'.  This passes '-shared' to 'ld'
       when building a shared library.  It is the default when GCC is
       configured, explicitly or implicitly, with the GNU linker.  This
!      option does not affect which 'ld' is called; it only changes what
!      parameters are passed to that 'ld'.  The 'ld' that is called is
!      determined by the '--with-ld' configure option, GCC's program
!      search path, and finally by the user's 'PATH'.  The linker used by
!      GCC can be printed using 'which `gcc -print-prog-name=ld`'.  This
       option is only available on the 64-bit HP-UX GCC, i.e. configured
!      with 'hppa*64*-*-hpux*'.
  
! '-mhp-ld'
!      Use options specific to HP 'ld'.  This passes '-b' to 'ld' when
!      building a shared library and passes '+Accept TypeMismatch' to 'ld'
!      on all links.  It is the default when GCC is configured, explicitly
!      or implicitly, with the HP linker.  This option does not affect
!      which 'ld' is called; it only changes what parameters are passed to
!      that 'ld'.  The 'ld' that is called is determined by the
!      '--with-ld' configure option, GCC's program search path, and
!      finally by the user's 'PATH'.  The linker used by GCC can be
!      printed using 'which `gcc -print-prog-name=ld`'.  This option is
       only available on the 64-bit HP-UX GCC, i.e. configured with
!      'hppa*64*-*-hpux*'.
  
! '-mlong-calls'
       Generate code that uses long call sequences.  This ensures that a
       call is always able to reach linker generated stubs.  The default
!      is to generate long calls only when the distance from the call site
!      to the beginning of the function or translation unit, as the case
!      may be, exceeds a predefined limit set by the branch type being
!      used.  The limits for normal calls are 7,600,000 and 240,000 bytes,
!      respectively for the PA 2.0 and PA 1.X architectures.  Sibcalls are
!      always limited at 240,000 bytes.
  
       Distances are measured from the beginning of functions when using
!      the '-ffunction-sections' option, or when using the '-mgas' and
!      '-mno-portable-runtime' options together under HP-UX with the SOM
       linker.
  
       It is normally not desirable to use this option as it degrades
*************** These `-m' options are defined for the H
*** 15609,15658 ****
       However, an indirect call is used on 32-bit ELF systems in pic code
       and it is quite long.
  
! `-munix=UNIX-STD'
       Generate compiler predefines and select a startfile for the
!      specified UNIX standard.  The choices for UNIX-STD are `93', `95'
!      and `98'.  `93' is supported on all HP-UX versions.  `95' is
!      available on HP-UX 10.10 and later.  `98' is available on HP-UX
!      11.11 and later.  The default values are `93' for HP-UX 10.00,
!      `95' for HP-UX 10.10 though to 11.00, and `98' for HP-UX 11.11 and
       later.
  
!      `-munix=93' provides the same predefines as GCC 3.3 and 3.4.
!      `-munix=95' provides additional predefines for `XOPEN_UNIX' and
!      `_XOPEN_SOURCE_EXTENDED', and the startfile `unix95.o'.
!      `-munix=98' provides additional predefines for `_XOPEN_UNIX',
!      `_XOPEN_SOURCE_EXTENDED', `_INCLUDE__STDC_A1_SOURCE' and
!      `_INCLUDE_XOPEN_SOURCE_500', and the startfile `unix98.o'.
  
       It is _important_ to note that this option changes the interfaces
       for various library routines.  It also affects the operational
!      behavior of the C library.  Thus, _extreme_ care is needed in
!      using this option.
  
       Library code that is intended to operate with more than one UNIX
       standard must test, set and restore the variable
!      `__xpg4_extended_mask' as appropriate.  Most GNU software doesn't
       provide this capability.
  
! `-nolibdld'
       Suppress the generation of link options to search libdld.sl when
!      the `-static' option is specified on HP-UX 10 and later.
  
! `-static'
       The HP-UX implementation of setlocale in libc has a dependency on
       libdld.sl.  There isn't an archive version of libdld.sl.  Thus,
!      when the `-static' option is specified, special link options are
       needed to resolve this dependency.
  
       On HP-UX 10 and later, the GCC driver adds the necessary options to
!      link with libdld.sl when the `-static' option is specified.  This
!      causes the resulting binary to be dynamic.  On the 64-bit port,
!      the linkers generate dynamic binaries by default in any case.  The
!      `-nolibdld' option can be used to prevent the GCC driver from
       adding these link options.
  
! `-threads'
       Add support for multithreading with the "dce thread" library under
       HP-UX.  This option sets flags for both the preprocessor and
       linker.
--- 15551,15600 ----
       However, an indirect call is used on 32-bit ELF systems in pic code
       and it is quite long.
  
! '-munix=UNIX-STD'
       Generate compiler predefines and select a startfile for the
!      specified UNIX standard.  The choices for UNIX-STD are '93', '95'
!      and '98'.  '93' is supported on all HP-UX versions.  '95' is
!      available on HP-UX 10.10 and later.  '98' is available on HP-UX
!      11.11 and later.  The default values are '93' for HP-UX 10.00, '95'
!      for HP-UX 10.10 though to 11.00, and '98' for HP-UX 11.11 and
       later.
  
!      '-munix=93' provides the same predefines as GCC 3.3 and 3.4.
!      '-munix=95' provides additional predefines for 'XOPEN_UNIX' and
!      '_XOPEN_SOURCE_EXTENDED', and the startfile 'unix95.o'.
!      '-munix=98' provides additional predefines for '_XOPEN_UNIX',
!      '_XOPEN_SOURCE_EXTENDED', '_INCLUDE__STDC_A1_SOURCE' and
!      '_INCLUDE_XOPEN_SOURCE_500', and the startfile 'unix98.o'.
  
       It is _important_ to note that this option changes the interfaces
       for various library routines.  It also affects the operational
!      behavior of the C library.  Thus, _extreme_ care is needed in using
!      this option.
  
       Library code that is intended to operate with more than one UNIX
       standard must test, set and restore the variable
!      '__xpg4_extended_mask' as appropriate.  Most GNU software doesn't
       provide this capability.
  
! '-nolibdld'
       Suppress the generation of link options to search libdld.sl when
!      the '-static' option is specified on HP-UX 10 and later.
  
! '-static'
       The HP-UX implementation of setlocale in libc has a dependency on
       libdld.sl.  There isn't an archive version of libdld.sl.  Thus,
!      when the '-static' option is specified, special link options are
       needed to resolve this dependency.
  
       On HP-UX 10 and later, the GCC driver adds the necessary options to
!      link with libdld.sl when the '-static' option is specified.  This
!      causes the resulting binary to be dynamic.  On the 64-bit port, the
!      linkers generate dynamic binaries by default in any case.  The
!      '-nolibdld' option can be used to prevent the GCC driver from
       adding these link options.
  
! '-threads'
       Add support for multithreading with the "dce thread" library under
       HP-UX.  This option sets flags for both the preprocessor and
       linker.
*************** File: gcc.info,  Node: IA-64 Options,  N
*** 15663,15931 ****
  3.18.18 IA-64 Options
  ---------------------
  
! These are the `-m' options defined for the Intel IA-64 architecture.
  
! `-mbig-endian'
       Generate code for a big-endian target.  This is the default for
       HP-UX.
  
! `-mlittle-endian'
       Generate code for a little-endian target.  This is the default for
       AIX5 and GNU/Linux.
  
! `-mgnu-as'
! `-mno-gnu-as'
       Generate (or don't) code for the GNU assembler.  This is the
       default.
  
! `-mgnu-ld'
! `-mno-gnu-ld'
       Generate (or don't) code for the GNU linker.  This is the default.
  
! `-mno-pic'
       Generate code that does not use a global pointer register.  The
       result is not position independent code, and violates the IA-64
       ABI.
  
! `-mvolatile-asm-stop'
! `-mno-volatile-asm-stop'
       Generate (or don't) a stop bit immediately before and after
       volatile asm statements.
  
! `-mregister-names'
! `-mno-register-names'
!      Generate (or don't) `in', `loc', and `out' register names for the
       stacked registers.  This may make assembler output more readable.
  
! `-mno-sdata'
! `-msdata'
       Disable (or enable) optimizations that use the small data section.
       This may be useful for working around optimizer bugs.
  
! `-mconstant-gp'
       Generate code that uses a single constant global pointer value.
       This is useful when compiling kernel code.
  
! `-mauto-pic'
       Generate code that is self-relocatable.  This implies
!      `-mconstant-gp'.  This is useful when compiling firmware code.
  
! `-minline-float-divide-min-latency'
!      Generate code for inline divides of floating-point values using
!      the minimum latency algorithm.
  
! `-minline-float-divide-max-throughput'
!      Generate code for inline divides of floating-point values using
!      the maximum throughput algorithm.
  
! `-mno-inline-float-divide'
       Do not generate inline code for divides of floating-point values.
  
! `-minline-int-divide-min-latency'
       Generate code for inline divides of integer values using the
       minimum latency algorithm.
  
! `-minline-int-divide-max-throughput'
       Generate code for inline divides of integer values using the
       maximum throughput algorithm.
  
! `-mno-inline-int-divide'
       Do not generate inline code for divides of integer values.
  
! `-minline-sqrt-min-latency'
       Generate code for inline square roots using the minimum latency
       algorithm.
  
! `-minline-sqrt-max-throughput'
       Generate code for inline square roots using the maximum throughput
       algorithm.
  
! `-mno-inline-sqrt'
!      Do not generate inline code for `sqrt'.
  
! `-mfused-madd'
! `-mno-fused-madd'
       Do (don't) generate code that uses the fused multiply/add or
       multiply/subtract instructions.  The default is to use these
       instructions.
  
! `-mno-dwarf2-asm'
! `-mdwarf2-asm'
       Don't (or do) generate assembler code for the DWARF line number
       debugging info.  This may be useful when not using the GNU
       assembler.
  
! `-mearly-stop-bits'
! `-mno-early-stop-bits'
       Allow stop bits to be placed earlier than immediately preceding the
       instruction that triggered the stop bit.  This can improve
       instruction scheduling, but does not always do so.
  
! `-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator cannot use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! `-mtls-size=TLS-SIZE'
       Specify bit size of immediate TLS offsets.  Valid values are 14,
       22, and 64.
  
! `-mtune=CPU-TYPE'
       Tune the instruction scheduling for a particular CPU, Valid values
!      are `itanium', `itanium1', `merced', `itanium2', and `mckinley'.
  
! `-milp32'
! `-mlp64'
       Generate code for a 32-bit or 64-bit environment.  The 32-bit
       environment sets int, long and pointer to 32 bits.  The 64-bit
       environment sets int to 32 bits and long and pointer to 64 bits.
       These are HP-UX specific flags.
  
! `-mno-sched-br-data-spec'
! `-msched-br-data-spec'
       (Dis/En)able data speculative scheduling before reload.  This
!      results in generation of `ld.a' instructions and the corresponding
!      check instructions (`ld.c' / `chk.a').  The default setting is
       disabled.
  
! `-msched-ar-data-spec'
! `-mno-sched-ar-data-spec'
       (En/Dis)able data speculative scheduling after reload.  This
!      results in generation of `ld.a' instructions and the corresponding
!      check instructions (`ld.c' / `chk.a').  The default setting is
       enabled.
  
! `-mno-sched-control-spec'
! `-msched-control-spec'
       (Dis/En)able control speculative scheduling.  This feature is
!      available only during region scheduling (i.e. before reload).
!      This results in generation of the `ld.s' instructions and the
!      corresponding check instructions `chk.s'.  The default setting is
       disabled.
  
! `-msched-br-in-data-spec'
! `-mno-sched-br-in-data-spec'
       (En/Dis)able speculative scheduling of the instructions that are
       dependent on the data speculative loads before reload.  This is
!      effective only with `-msched-br-data-spec' enabled.  The default
       setting is enabled.
  
! `-msched-ar-in-data-spec'
! `-mno-sched-ar-in-data-spec'
       (En/Dis)able speculative scheduling of the instructions that are
       dependent on the data speculative loads after reload.  This is
!      effective only with `-msched-ar-data-spec' enabled.  The default
       setting is enabled.
  
! `-msched-in-control-spec'
! `-mno-sched-in-control-spec'
       (En/Dis)able speculative scheduling of the instructions that are
!      dependent on the control speculative loads.  This is effective
!      only with `-msched-control-spec' enabled.  The default setting is
       enabled.
  
! `-mno-sched-prefer-non-data-spec-insns'
! `-msched-prefer-non-data-spec-insns'
       If enabled, data-speculative instructions are chosen for schedule
       only if there are no other choices at the moment.  This makes the
       use of the data speculation much more conservative.  The default
       setting is disabled.
  
! `-mno-sched-prefer-non-control-spec-insns'
! `-msched-prefer-non-control-spec-insns'
       If enabled, control-speculative instructions are chosen for
       schedule only if there are no other choices at the moment.  This
       makes the use of the control speculation much more conservative.
       The default setting is disabled.
  
! `-mno-sched-count-spec-in-critical-path'
! `-msched-count-spec-in-critical-path'
       If enabled, speculative dependencies are considered during
       computation of the instructions priorities.  This makes the use of
       the speculation a bit more conservative.  The default setting is
       disabled.
  
! `-msched-spec-ldc'
       Use a simple data speculation check.  This option is on by default.
  
! `-msched-control-spec-ldc'
       Use a simple check for control speculation.  This option is on by
       default.
  
! `-msched-stop-bits-after-every-cycle'
!      Place a stop bit after every cycle when scheduling.  This option
!      is on by default.
  
! `-msched-fp-mem-deps-zero-cost'
!      Assume that floating-point stores and loads are not likely to
!      cause a conflict when placed into the same instruction group.
!      This option is disabled by default.
  
! `-msel-sched-dont-check-control-spec'
       Generate checks for control speculation in selective scheduling.
       This flag is disabled by default.
  
! `-msched-max-memory-insns=MAX-INSNS'
       Limit on the number of memory insns per instruction group, giving
!      lower priority to subsequent memory insns attempting to schedule
!      in the same instruction group. Frequently useful to prevent cache
       bank conflicts.  The default value is 1.
  
! `-msched-max-memory-insns-hard-limit'
!      Makes the limit specified by `msched-max-memory-insns' a hard
       limit, disallowing more than that number in an instruction group.
       Otherwise, the limit is "soft", meaning that non-memory operations
       are preferred when the limit is reached, but memory operations may
       still be scheduled.
  
- 
  
  File: gcc.info,  Node: LM32 Options,  Next: M32C Options,  Prev: IA-64 Options,  Up: Submodel Options
  
  3.18.19 LM32 Options
  --------------------
  
! These `-m' options are defined for the LatticeMico32 architecture:
  
! `-mbarrel-shift-enabled'
       Enable barrel-shift instructions.
  
! `-mdivide-enabled'
       Enable divide and modulus instructions.
  
! `-mmultiply-enabled'
       Enable multiply instructions.
  
! `-msign-extend-enabled'
       Enable sign extend instructions.
  
! `-muser-enabled'
       Enable user-defined instructions.
  
- 
  
  File: gcc.info,  Node: M32C Options,  Next: M32R/D Options,  Prev: LM32 Options,  Up: Submodel Options
  
  3.18.20 M32C Options
  --------------------
  
! `-mcpu=NAME'
       Select the CPU for which code is generated.  NAME may be one of
!      `r8c' for the R8C/Tiny series, `m16c' for the M16C (up to /60)
!      series, `m32cm' for the M16C/80 series, or `m32c' for the M32C/80
       series.
  
! `-msim'
       Specifies that the program will be run on the simulator.  This
!      causes an alternate runtime library to be linked in which
!      supports, for example, file I/O.  You must not use this option
!      when generating programs that will run on real hardware; you must
       provide your own runtime library for whatever I/O functions are
       needed.
  
! `-memregs=NUMBER'
       Specifies the number of memory-based pseudo-registers GCC uses
       during code generation.  These pseudo-registers are used like real
       registers, so there is a tradeoff between GCC's ability to fit the
--- 15605,15871 ----
  3.18.18 IA-64 Options
  ---------------------
  
! These are the '-m' options defined for the Intel IA-64 architecture.
  
! '-mbig-endian'
       Generate code for a big-endian target.  This is the default for
       HP-UX.
  
! '-mlittle-endian'
       Generate code for a little-endian target.  This is the default for
       AIX5 and GNU/Linux.
  
! '-mgnu-as'
! '-mno-gnu-as'
       Generate (or don't) code for the GNU assembler.  This is the
       default.
  
! '-mgnu-ld'
! '-mno-gnu-ld'
       Generate (or don't) code for the GNU linker.  This is the default.
  
! '-mno-pic'
       Generate code that does not use a global pointer register.  The
       result is not position independent code, and violates the IA-64
       ABI.
  
! '-mvolatile-asm-stop'
! '-mno-volatile-asm-stop'
       Generate (or don't) a stop bit immediately before and after
       volatile asm statements.
  
! '-mregister-names'
! '-mno-register-names'
!      Generate (or don't) 'in', 'loc', and 'out' register names for the
       stacked registers.  This may make assembler output more readable.
  
! '-mno-sdata'
! '-msdata'
       Disable (or enable) optimizations that use the small data section.
       This may be useful for working around optimizer bugs.
  
! '-mconstant-gp'
       Generate code that uses a single constant global pointer value.
       This is useful when compiling kernel code.
  
! '-mauto-pic'
       Generate code that is self-relocatable.  This implies
!      '-mconstant-gp'.  This is useful when compiling firmware code.
  
! '-minline-float-divide-min-latency'
!      Generate code for inline divides of floating-point values using the
!      minimum latency algorithm.
  
! '-minline-float-divide-max-throughput'
!      Generate code for inline divides of floating-point values using the
!      maximum throughput algorithm.
  
! '-mno-inline-float-divide'
       Do not generate inline code for divides of floating-point values.
  
! '-minline-int-divide-min-latency'
       Generate code for inline divides of integer values using the
       minimum latency algorithm.
  
! '-minline-int-divide-max-throughput'
       Generate code for inline divides of integer values using the
       maximum throughput algorithm.
  
! '-mno-inline-int-divide'
       Do not generate inline code for divides of integer values.
  
! '-minline-sqrt-min-latency'
       Generate code for inline square roots using the minimum latency
       algorithm.
  
! '-minline-sqrt-max-throughput'
       Generate code for inline square roots using the maximum throughput
       algorithm.
  
! '-mno-inline-sqrt'
!      Do not generate inline code for 'sqrt'.
  
! '-mfused-madd'
! '-mno-fused-madd'
       Do (don't) generate code that uses the fused multiply/add or
       multiply/subtract instructions.  The default is to use these
       instructions.
  
! '-mno-dwarf2-asm'
! '-mdwarf2-asm'
       Don't (or do) generate assembler code for the DWARF line number
       debugging info.  This may be useful when not using the GNU
       assembler.
  
! '-mearly-stop-bits'
! '-mno-early-stop-bits'
       Allow stop bits to be placed earlier than immediately preceding the
       instruction that triggered the stop bit.  This can improve
       instruction scheduling, but does not always do so.
  
! '-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator cannot use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! '-mtls-size=TLS-SIZE'
       Specify bit size of immediate TLS offsets.  Valid values are 14,
       22, and 64.
  
! '-mtune=CPU-TYPE'
       Tune the instruction scheduling for a particular CPU, Valid values
!      are 'itanium', 'itanium1', 'merced', 'itanium2', and 'mckinley'.
  
! '-milp32'
! '-mlp64'
       Generate code for a 32-bit or 64-bit environment.  The 32-bit
       environment sets int, long and pointer to 32 bits.  The 64-bit
       environment sets int to 32 bits and long and pointer to 64 bits.
       These are HP-UX specific flags.
  
! '-mno-sched-br-data-spec'
! '-msched-br-data-spec'
       (Dis/En)able data speculative scheduling before reload.  This
!      results in generation of 'ld.a' instructions and the corresponding
!      check instructions ('ld.c' / 'chk.a').  The default setting is
       disabled.
  
! '-msched-ar-data-spec'
! '-mno-sched-ar-data-spec'
       (En/Dis)able data speculative scheduling after reload.  This
!      results in generation of 'ld.a' instructions and the corresponding
!      check instructions ('ld.c' / 'chk.a').  The default setting is
       enabled.
  
! '-mno-sched-control-spec'
! '-msched-control-spec'
       (Dis/En)able control speculative scheduling.  This feature is
!      available only during region scheduling (i.e. before reload).  This
!      results in generation of the 'ld.s' instructions and the
!      corresponding check instructions 'chk.s'.  The default setting is
       disabled.
  
! '-msched-br-in-data-spec'
! '-mno-sched-br-in-data-spec'
       (En/Dis)able speculative scheduling of the instructions that are
       dependent on the data speculative loads before reload.  This is
!      effective only with '-msched-br-data-spec' enabled.  The default
       setting is enabled.
  
! '-msched-ar-in-data-spec'
! '-mno-sched-ar-in-data-spec'
       (En/Dis)able speculative scheduling of the instructions that are
       dependent on the data speculative loads after reload.  This is
!      effective only with '-msched-ar-data-spec' enabled.  The default
       setting is enabled.
  
! '-msched-in-control-spec'
! '-mno-sched-in-control-spec'
       (En/Dis)able speculative scheduling of the instructions that are
!      dependent on the control speculative loads.  This is effective only
!      with '-msched-control-spec' enabled.  The default setting is
       enabled.
  
! '-mno-sched-prefer-non-data-spec-insns'
! '-msched-prefer-non-data-spec-insns'
       If enabled, data-speculative instructions are chosen for schedule
       only if there are no other choices at the moment.  This makes the
       use of the data speculation much more conservative.  The default
       setting is disabled.
  
! '-mno-sched-prefer-non-control-spec-insns'
! '-msched-prefer-non-control-spec-insns'
       If enabled, control-speculative instructions are chosen for
       schedule only if there are no other choices at the moment.  This
       makes the use of the control speculation much more conservative.
       The default setting is disabled.
  
! '-mno-sched-count-spec-in-critical-path'
! '-msched-count-spec-in-critical-path'
       If enabled, speculative dependencies are considered during
       computation of the instructions priorities.  This makes the use of
       the speculation a bit more conservative.  The default setting is
       disabled.
  
! '-msched-spec-ldc'
       Use a simple data speculation check.  This option is on by default.
  
! '-msched-control-spec-ldc'
       Use a simple check for control speculation.  This option is on by
       default.
  
! '-msched-stop-bits-after-every-cycle'
!      Place a stop bit after every cycle when scheduling.  This option is
!      on by default.
  
! '-msched-fp-mem-deps-zero-cost'
!      Assume that floating-point stores and loads are not likely to cause
!      a conflict when placed into the same instruction group.  This
!      option is disabled by default.
  
! '-msel-sched-dont-check-control-spec'
       Generate checks for control speculation in selective scheduling.
       This flag is disabled by default.
  
! '-msched-max-memory-insns=MAX-INSNS'
       Limit on the number of memory insns per instruction group, giving
!      lower priority to subsequent memory insns attempting to schedule in
!      the same instruction group.  Frequently useful to prevent cache
       bank conflicts.  The default value is 1.
  
! '-msched-max-memory-insns-hard-limit'
!      Makes the limit specified by 'msched-max-memory-insns' a hard
       limit, disallowing more than that number in an instruction group.
       Otherwise, the limit is "soft", meaning that non-memory operations
       are preferred when the limit is reached, but memory operations may
       still be scheduled.
  
  
  File: gcc.info,  Node: LM32 Options,  Next: M32C Options,  Prev: IA-64 Options,  Up: Submodel Options
  
  3.18.19 LM32 Options
  --------------------
  
! These '-m' options are defined for the LatticeMico32 architecture:
  
! '-mbarrel-shift-enabled'
       Enable barrel-shift instructions.
  
! '-mdivide-enabled'
       Enable divide and modulus instructions.
  
! '-mmultiply-enabled'
       Enable multiply instructions.
  
! '-msign-extend-enabled'
       Enable sign extend instructions.
  
! '-muser-enabled'
       Enable user-defined instructions.
  
  
  File: gcc.info,  Node: M32C Options,  Next: M32R/D Options,  Prev: LM32 Options,  Up: Submodel Options
  
  3.18.20 M32C Options
  --------------------
  
! '-mcpu=NAME'
       Select the CPU for which code is generated.  NAME may be one of
!      'r8c' for the R8C/Tiny series, 'm16c' for the M16C (up to /60)
!      series, 'm32cm' for the M16C/80 series, or 'm32c' for the M32C/80
       series.
  
! '-msim'
       Specifies that the program will be run on the simulator.  This
!      causes an alternate runtime library to be linked in which supports,
!      for example, file I/O.  You must not use this option when
!      generating programs that will run on real hardware; you must
       provide your own runtime library for whatever I/O functions are
       needed.
  
! '-memregs=NUMBER'
       Specifies the number of memory-based pseudo-registers GCC uses
       during code generation.  These pseudo-registers are used like real
       registers, so there is a tradeoff between GCC's ability to fit the
*************** File: gcc.info,  Node: M32C Options,  Ne
*** 15935,16284 ****
       that, you must not use this option with GCC's default runtime
       libraries.
  
- 
  
  File: gcc.info,  Node: M32R/D Options,  Next: M680x0 Options,  Prev: M32C Options,  Up: Submodel Options
  
  3.18.21 M32R/D Options
  ----------------------
  
! These `-m' options are defined for Renesas M32R/D architectures:
  
! `-m32r2'
       Generate code for the M32R/2.
  
! `-m32rx'
       Generate code for the M32R/X.
  
! `-m32r'
       Generate code for the M32R.  This is the default.
  
! `-mmodel=small'
       Assume all objects live in the lower 16MB of memory (so that their
!      addresses can be loaded with the `ld24' instruction), and assume
!      all subroutines are reachable with the `bl' instruction.  This is
       the default.
  
       The addressability of a particular object can be set with the
!      `model' attribute.
  
! `-mmodel=medium'
       Assume objects may be anywhere in the 32-bit address space (the
!      compiler generates `seth/add3' instructions to load their
!      addresses), and assume all subroutines are reachable with the `bl'
       instruction.
  
! `-mmodel=large'
       Assume objects may be anywhere in the 32-bit address space (the
!      compiler generates `seth/add3' instructions to load their
       addresses), and assume subroutines may not be reachable with the
!      `bl' instruction (the compiler generates the much slower
!      `seth/add3/jl' instruction sequence).
  
! `-msdata=none'
       Disable use of the small data area.  Variables are put into one of
!      `.data', `.bss', or `.rodata' (unless the `section' attribute has
       been specified).  This is the default.
  
!      The small data area consists of sections `.sdata' and `.sbss'.
       Objects may be explicitly put in the small data area with the
!      `section' attribute using one of these sections.
  
! `-msdata=sdata'
       Put small global and static data in the small data area, but do not
       generate special code to reference them.
  
! `-msdata=use'
       Put small global and static data in the small data area, and
       generate special instructions to reference them.
  
! `-G NUM'
       Put global and static objects less than or equal to NUM bytes into
       the small data or BSS sections instead of the normal data or BSS
!      sections.  The default value of NUM is 8.  The `-msdata' option
!      must be set to one of `sdata' or `use' for this option to have any
       effect.
  
!      All modules should be compiled with the same `-G NUM' value.
       Compiling with different values of NUM may or may not work; if it
       doesn't the linker gives an error message--incorrect code is not
       generated.
  
! `-mdebug'
       Makes the M32R-specific code in the compiler display some
       statistics that might help in debugging programs.
  
! `-malign-loops'
       Align all loops to a 32-byte boundary.
  
! `-mno-align-loops'
       Do not enforce a 32-byte alignment for loops.  This is the default.
  
! `-missue-rate=NUMBER'
       Issue NUMBER instructions per cycle.  NUMBER can only be 1 or 2.
  
! `-mbranch-cost=NUMBER'
       NUMBER can only be 1 or 2.  If it is 1 then branches are preferred
       over conditional code, if it is 2, then the opposite applies.
  
! `-mflush-trap=NUMBER'
       Specifies the trap number to use to flush the cache.  The default
       is 12.  Valid numbers are between 0 and 15 inclusive.
  
! `-mno-flush-trap'
       Specifies that the cache cannot be flushed by using a trap.
  
! `-mflush-func=NAME'
       Specifies the name of the operating system function to call to
!      flush the cache.  The default is `_flush_cache', but a function
       call is only used if a trap is not available.
  
! `-mno-flush-func'
       Indicates that there is no OS function for flushing the cache.
  
- 
  
  File: gcc.info,  Node: M680x0 Options,  Next: MCore Options,  Prev: M32R/D Options,  Up: Submodel Options
  
  3.18.22 M680x0 Options
  ----------------------
  
! These are the `-m' options defined for M680x0 and ColdFire processors.
  The default settings depend on which architecture was selected when the
  compiler was configured; the defaults for the most common choices are
  given below.
  
! `-march=ARCH'
       Generate code for a specific M680x0 or ColdFire instruction set
       architecture.  Permissible values of ARCH for M680x0 architectures
!      are: `68000', `68010', `68020', `68030', `68040', `68060' and
!      `cpu32'.  ColdFire architectures are selected according to
       Freescale's ISA classification and the permissible values are:
!      `isaa', `isaaplus', `isab' and `isac'.
  
!      GCC defines a macro `__mcfARCH__' whenever it is generating code
       for a ColdFire target.  The ARCH in this macro is one of the
!      `-march' arguments given above.
  
!      When used together, `-march' and `-mtune' select code that runs on
       a family of similar processors but that is optimized for a
       particular microarchitecture.
  
! `-mcpu=CPU'
       Generate code for a specific M680x0 or ColdFire processor.  The
!      M680x0 CPUs are: `68000', `68010', `68020', `68030', `68040',
!      `68060', `68302', `68332' and `cpu32'.  The ColdFire CPUs are
!      given by the table below, which also classifies the CPUs into
!      families:
  
!      *Family*      *`-mcpu' arguments*
!      `51'          `51' `51ac' `51ag' `51cn' `51em' `51je' `51jf' `51jg'
!                    `51jm' `51mm' `51qe' `51qm'
!      `5206'        `5202' `5204' `5206'
!      `5206e'       `5206e'
!      `5208'        `5207' `5208'
!      `5211a'       `5210a' `5211a'
!      `5213'        `5211' `5212' `5213'
!      `5216'        `5214' `5216'
!      `52235'       `52230' `52231' `52232' `52233' `52234' `52235'
!      `5225'        `5224' `5225'
!      `52259'       `52252' `52254' `52255' `52256' `52258' `52259'
!      `5235'        `5232' `5233' `5234' `5235' `523x'
!      `5249'        `5249'
!      `5250'        `5250'
!      `5271'        `5270' `5271'
!      `5272'        `5272'
!      `5275'        `5274' `5275'
!      `5282'        `5280' `5281' `5282' `528x'
!      `53017'       `53011' `53012' `53013' `53014' `53015' `53016'
!                    `53017'
!      `5307'        `5307'
!      `5329'        `5327' `5328' `5329' `532x'
!      `5373'        `5372' `5373' `537x'
!      `5407'        `5407'
!      `5475'        `5470' `5471' `5472' `5473' `5474' `5475' `547x'
!                    `5480' `5481' `5482' `5483' `5484' `5485'
  
!      `-mcpu=CPU' overrides `-march=ARCH' if ARCH is compatible with
!      CPU.  Other combinations of `-mcpu' and `-march' are rejected.
  
!      GCC defines the macro `__mcf_cpu_CPU' when ColdFire target CPU is
!      selected.  It also defines `__mcf_family_FAMILY', where the value
       of FAMILY is given by the table above.
  
! `-mtune=TUNE'
       Tune the code for a particular microarchitecture within the
!      constraints set by `-march' and `-mcpu'.  The M680x0
!      microarchitectures are: `68000', `68010', `68020', `68030',
!      `68040', `68060' and `cpu32'.  The ColdFire microarchitectures
!      are: `cfv1', `cfv2', `cfv3', `cfv4' and `cfv4e'.
  
!      You can also use `-mtune=68020-40' for code that needs to run
       relatively well on 68020, 68030 and 68040 targets.
!      `-mtune=68020-60' is similar but includes 68060 targets as well.
!      These two options select the same tuning decisions as `-m68020-40'
!      and `-m68020-60' respectively.
  
!      GCC defines the macros `__mcARCH' and `__mcARCH__' when tuning for
!      680x0 architecture ARCH.  It also defines `mcARCH' unless either
!      `-ansi' or a non-GNU `-std' option is used.  If GCC is tuning for
!      a range of architectures, as selected by `-mtune=68020-40' or
!      `-mtune=68020-60', it defines the macros for every architecture in
       the range.
  
!      GCC also defines the macro `__mUARCH__' when tuning for ColdFire
       microarchitecture UARCH, where UARCH is one of the arguments given
       above.
  
! `-m68000'
! `-mc68000'
!      Generate output for a 68000.  This is the default when the
!      compiler is configured for 68000-based systems.  It is equivalent
!      to `-march=68000'.
  
       Use this option for microcontrollers with a 68000 or EC000 core,
       including the 68008, 68302, 68306, 68307, 68322, 68328 and 68356.
  
! `-m68010'
!      Generate output for a 68010.  This is the default when the
!      compiler is configured for 68010-based systems.  It is equivalent
!      to `-march=68010'.
  
! `-m68020'
! `-mc68020'
!      Generate output for a 68020.  This is the default when the
!      compiler is configured for 68020-based systems.  It is equivalent
!      to `-march=68020'.
  
! `-m68030'
!      Generate output for a 68030.  This is the default when the
!      compiler is configured for 68030-based systems.  It is equivalent
!      to `-march=68030'.
  
! `-m68040'
!      Generate output for a 68040.  This is the default when the
!      compiler is configured for 68040-based systems.  It is equivalent
!      to `-march=68040'.
  
       This option inhibits the use of 68881/68882 instructions that have
       to be emulated by software on the 68040.  Use this option if your
       68040 does not have code to emulate those instructions.
  
! `-m68060'
!      Generate output for a 68060.  This is the default when the
!      compiler is configured for 68060-based systems.  It is equivalent
!      to `-march=68060'.
  
       This option inhibits the use of 68020 and 68881/68882 instructions
!      that have to be emulated by software on the 68060.  Use this
!      option if your 68060 does not have code to emulate those
!      instructions.
  
! `-mcpu32'
!      Generate output for a CPU32.  This is the default when the
!      compiler is configured for CPU32-based systems.  It is equivalent
!      to `-march=cpu32'.
  
       Use this option for microcontrollers with a CPU32 or CPU32+ core,
       including the 68330, 68331, 68332, 68333, 68334, 68336, 68340,
       68341, 68349 and 68360.
  
! `-m5200'
       Generate output for a 520X ColdFire CPU.  This is the default when
       the compiler is configured for 520X-based systems.  It is
!      equivalent to `-mcpu=5206', and is now deprecated in favor of that
       option.
  
!      Use this option for microcontroller with a 5200 core, including
!      the MCF5202, MCF5203, MCF5204 and MCF5206.
  
! `-m5206e'
       Generate output for a 5206e ColdFire CPU.  The option is now
!      deprecated in favor of the equivalent `-mcpu=5206e'.
  
! `-m528x'
       Generate output for a member of the ColdFire 528X family.  The
!      option is now deprecated in favor of the equivalent `-mcpu=528x'.
  
! `-m5307'
       Generate output for a ColdFire 5307 CPU.  The option is now
!      deprecated in favor of the equivalent `-mcpu=5307'.
  
! `-m5407'
       Generate output for a ColdFire 5407 CPU.  The option is now
!      deprecated in favor of the equivalent `-mcpu=5407'.
  
! `-mcfv4e'
       Generate output for a ColdFire V4e family CPU (e.g. 547x/548x).
       This includes use of hardware floating-point instructions.  The
!      option is equivalent to `-mcpu=547x', and is now deprecated in
       favor of that option.
  
! `-m68020-40'
       Generate output for a 68040, without using any of the new
       instructions.  This results in code that can run relatively
       efficiently on either a 68020/68881 or a 68030 or a 68040.  The
!      generated code does use the 68881 instructions that are emulated
!      on the 68040.
  
!      The option is equivalent to `-march=68020' `-mtune=68020-40'.
  
! `-m68020-60'
       Generate output for a 68060, without using any of the new
       instructions.  This results in code that can run relatively
       efficiently on either a 68020/68881 or a 68030 or a 68040.  The
!      generated code does use the 68881 instructions that are emulated
!      on the 68060.
  
!      The option is equivalent to `-march=68020' `-mtune=68020-60'.
  
! `-mhard-float'
! `-m68881'
       Generate floating-point instructions.  This is the default for
       68020 and above, and for ColdFire devices that have an FPU.  It
!      defines the macro `__HAVE_68881__' on M680x0 targets and
!      `__mcffpu__' on ColdFire targets.
  
! `-msoft-float'
       Do not generate floating-point instructions; use library calls
       instead.  This is the default for 68000, 68010, and 68832 targets.
       It is also the default for ColdFire devices that have no FPU.
  
! `-mdiv'
! `-mno-div'
       Generate (do not generate) ColdFire hardware divide and remainder
!      instructions.  If `-march' is used without `-mcpu', the default is
!      "on" for ColdFire architectures and "off" for M680x0
!      architectures.  Otherwise, the default is taken from the target CPU
!      (either the default CPU, or the one specified by `-mcpu').  For
!      example, the default is "off" for `-mcpu=5206' and "on" for
!      `-mcpu=5206e'.
  
!      GCC defines the macro `__mcfhwdiv__' when this option is enabled.
  
! `-mshort'
!      Consider type `int' to be 16 bits wide, like `short int'.
       Additionally, parameters passed on the stack are also aligned to a
       16-bit boundary even on targets whose API mandates promotion to
       32-bit.
  
! `-mno-short'
!      Do not consider type `int' to be 16 bits wide.  This is the
       default.
  
! `-mnobitfield'
! `-mno-bitfield'
!      Do not use the bit-field instructions.  The `-m68000', `-mcpu32'
!      and `-m5200' options imply `-mnobitfield'.
  
! `-mbitfield'
!      Do use the bit-field instructions.  The `-m68020' option implies
!      `-mbitfield'.  This is the default if you use a configuration
       designed for a 68020.
  
! `-mrtd'
       Use a different function-calling convention, in which functions
!      that take a fixed number of arguments return with the `rtd'
       instruction, which pops their arguments while returning.  This
       saves one instruction in the caller since there is no need to pop
       the arguments there.
--- 15875,16218 ----
       that, you must not use this option with GCC's default runtime
       libraries.
  
  
  File: gcc.info,  Node: M32R/D Options,  Next: M680x0 Options,  Prev: M32C Options,  Up: Submodel Options
  
  3.18.21 M32R/D Options
  ----------------------
  
! These '-m' options are defined for Renesas M32R/D architectures:
  
! '-m32r2'
       Generate code for the M32R/2.
  
! '-m32rx'
       Generate code for the M32R/X.
  
! '-m32r'
       Generate code for the M32R.  This is the default.
  
! '-mmodel=small'
       Assume all objects live in the lower 16MB of memory (so that their
!      addresses can be loaded with the 'ld24' instruction), and assume
!      all subroutines are reachable with the 'bl' instruction.  This is
       the default.
  
       The addressability of a particular object can be set with the
!      'model' attribute.
  
! '-mmodel=medium'
       Assume objects may be anywhere in the 32-bit address space (the
!      compiler generates 'seth/add3' instructions to load their
!      addresses), and assume all subroutines are reachable with the 'bl'
       instruction.
  
! '-mmodel=large'
       Assume objects may be anywhere in the 32-bit address space (the
!      compiler generates 'seth/add3' instructions to load their
       addresses), and assume subroutines may not be reachable with the
!      'bl' instruction (the compiler generates the much slower
!      'seth/add3/jl' instruction sequence).
  
! '-msdata=none'
       Disable use of the small data area.  Variables are put into one of
!      '.data', '.bss', or '.rodata' (unless the 'section' attribute has
       been specified).  This is the default.
  
!      The small data area consists of sections '.sdata' and '.sbss'.
       Objects may be explicitly put in the small data area with the
!      'section' attribute using one of these sections.
  
! '-msdata=sdata'
       Put small global and static data in the small data area, but do not
       generate special code to reference them.
  
! '-msdata=use'
       Put small global and static data in the small data area, and
       generate special instructions to reference them.
  
! '-G NUM'
       Put global and static objects less than or equal to NUM bytes into
       the small data or BSS sections instead of the normal data or BSS
!      sections.  The default value of NUM is 8.  The '-msdata' option
!      must be set to one of 'sdata' or 'use' for this option to have any
       effect.
  
!      All modules should be compiled with the same '-G NUM' value.
       Compiling with different values of NUM may or may not work; if it
       doesn't the linker gives an error message--incorrect code is not
       generated.
  
! '-mdebug'
       Makes the M32R-specific code in the compiler display some
       statistics that might help in debugging programs.
  
! '-malign-loops'
       Align all loops to a 32-byte boundary.
  
! '-mno-align-loops'
       Do not enforce a 32-byte alignment for loops.  This is the default.
  
! '-missue-rate=NUMBER'
       Issue NUMBER instructions per cycle.  NUMBER can only be 1 or 2.
  
! '-mbranch-cost=NUMBER'
       NUMBER can only be 1 or 2.  If it is 1 then branches are preferred
       over conditional code, if it is 2, then the opposite applies.
  
! '-mflush-trap=NUMBER'
       Specifies the trap number to use to flush the cache.  The default
       is 12.  Valid numbers are between 0 and 15 inclusive.
  
! '-mno-flush-trap'
       Specifies that the cache cannot be flushed by using a trap.
  
! '-mflush-func=NAME'
       Specifies the name of the operating system function to call to
!      flush the cache.  The default is '_flush_cache', but a function
       call is only used if a trap is not available.
  
! '-mno-flush-func'
       Indicates that there is no OS function for flushing the cache.
  
  
  File: gcc.info,  Node: M680x0 Options,  Next: MCore Options,  Prev: M32R/D Options,  Up: Submodel Options
  
  3.18.22 M680x0 Options
  ----------------------
  
! These are the '-m' options defined for M680x0 and ColdFire processors.
  The default settings depend on which architecture was selected when the
  compiler was configured; the defaults for the most common choices are
  given below.
  
! '-march=ARCH'
       Generate code for a specific M680x0 or ColdFire instruction set
       architecture.  Permissible values of ARCH for M680x0 architectures
!      are: '68000', '68010', '68020', '68030', '68040', '68060' and
!      'cpu32'.  ColdFire architectures are selected according to
       Freescale's ISA classification and the permissible values are:
!      'isaa', 'isaaplus', 'isab' and 'isac'.
  
!      GCC defines a macro '__mcfARCH__' whenever it is generating code
       for a ColdFire target.  The ARCH in this macro is one of the
!      '-march' arguments given above.
  
!      When used together, '-march' and '-mtune' select code that runs on
       a family of similar processors but that is optimized for a
       particular microarchitecture.
  
! '-mcpu=CPU'
       Generate code for a specific M680x0 or ColdFire processor.  The
!      M680x0 CPUs are: '68000', '68010', '68020', '68030', '68040',
!      '68060', '68302', '68332' and 'cpu32'.  The ColdFire CPUs are given
!      by the table below, which also classifies the CPUs into families:
  
!      *Family*       *'-mcpu' arguments*
!      '51'           '51' '51ac' '51ag' '51cn' '51em' '51je' '51jf' '51jg'
!                     '51jm' '51mm' '51qe' '51qm'
!      '5206'         '5202' '5204' '5206'
!      '5206e'        '5206e'
!      '5208'         '5207' '5208'
!      '5211a'        '5210a' '5211a'
!      '5213'         '5211' '5212' '5213'
!      '5216'         '5214' '5216'
!      '52235'        '52230' '52231' '52232' '52233' '52234' '52235'
!      '5225'         '5224' '5225'
!      '52259'        '52252' '52254' '52255' '52256' '52258' '52259'
!      '5235'         '5232' '5233' '5234' '5235' '523x'
!      '5249'         '5249'
!      '5250'         '5250'
!      '5271'         '5270' '5271'
!      '5272'         '5272'
!      '5275'         '5274' '5275'
!      '5282'         '5280' '5281' '5282' '528x'
!      '53017'        '53011' '53012' '53013' '53014' '53015' '53016' '53017'
!      '5307'         '5307'
!      '5329'         '5327' '5328' '5329' '532x'
!      '5373'         '5372' '5373' '537x'
!      '5407'         '5407'
!      '5475'         '5470' '5471' '5472' '5473' '5474' '5475' '547x' '5480'
!                     '5481' '5482' '5483' '5484' '5485'
  
!      '-mcpu=CPU' overrides '-march=ARCH' if ARCH is compatible with CPU.
!      Other combinations of '-mcpu' and '-march' are rejected.
  
!      GCC defines the macro '__mcf_cpu_CPU' when ColdFire target CPU is
!      selected.  It also defines '__mcf_family_FAMILY', where the value
       of FAMILY is given by the table above.
  
! '-mtune=TUNE'
       Tune the code for a particular microarchitecture within the
!      constraints set by '-march' and '-mcpu'.  The M680x0
!      microarchitectures are: '68000', '68010', '68020', '68030',
!      '68040', '68060' and 'cpu32'.  The ColdFire microarchitectures are:
!      'cfv1', 'cfv2', 'cfv3', 'cfv4' and 'cfv4e'.
  
!      You can also use '-mtune=68020-40' for code that needs to run
       relatively well on 68020, 68030 and 68040 targets.
!      '-mtune=68020-60' is similar but includes 68060 targets as well.
!      These two options select the same tuning decisions as '-m68020-40'
!      and '-m68020-60' respectively.
  
!      GCC defines the macros '__mcARCH' and '__mcARCH__' when tuning for
!      680x0 architecture ARCH.  It also defines 'mcARCH' unless either
!      '-ansi' or a non-GNU '-std' option is used.  If GCC is tuning for a
!      range of architectures, as selected by '-mtune=68020-40' or
!      '-mtune=68020-60', it defines the macros for every architecture in
       the range.
  
!      GCC also defines the macro '__mUARCH__' when tuning for ColdFire
       microarchitecture UARCH, where UARCH is one of the arguments given
       above.
  
! '-m68000'
! '-mc68000'
!      Generate output for a 68000.  This is the default when the compiler
!      is configured for 68000-based systems.  It is equivalent to
!      '-march=68000'.
  
       Use this option for microcontrollers with a 68000 or EC000 core,
       including the 68008, 68302, 68306, 68307, 68322, 68328 and 68356.
  
! '-m68010'
!      Generate output for a 68010.  This is the default when the compiler
!      is configured for 68010-based systems.  It is equivalent to
!      '-march=68010'.
  
! '-m68020'
! '-mc68020'
!      Generate output for a 68020.  This is the default when the compiler
!      is configured for 68020-based systems.  It is equivalent to
!      '-march=68020'.
  
! '-m68030'
!      Generate output for a 68030.  This is the default when the compiler
!      is configured for 68030-based systems.  It is equivalent to
!      '-march=68030'.
  
! '-m68040'
!      Generate output for a 68040.  This is the default when the compiler
!      is configured for 68040-based systems.  It is equivalent to
!      '-march=68040'.
  
       This option inhibits the use of 68881/68882 instructions that have
       to be emulated by software on the 68040.  Use this option if your
       68040 does not have code to emulate those instructions.
  
! '-m68060'
!      Generate output for a 68060.  This is the default when the compiler
!      is configured for 68060-based systems.  It is equivalent to
!      '-march=68060'.
  
       This option inhibits the use of 68020 and 68881/68882 instructions
!      that have to be emulated by software on the 68060.  Use this option
!      if your 68060 does not have code to emulate those instructions.
  
! '-mcpu32'
!      Generate output for a CPU32.  This is the default when the compiler
!      is configured for CPU32-based systems.  It is equivalent to
!      '-march=cpu32'.
  
       Use this option for microcontrollers with a CPU32 or CPU32+ core,
       including the 68330, 68331, 68332, 68333, 68334, 68336, 68340,
       68341, 68349 and 68360.
  
! '-m5200'
       Generate output for a 520X ColdFire CPU.  This is the default when
       the compiler is configured for 520X-based systems.  It is
!      equivalent to '-mcpu=5206', and is now deprecated in favor of that
       option.
  
!      Use this option for microcontroller with a 5200 core, including the
!      MCF5202, MCF5203, MCF5204 and MCF5206.
  
! '-m5206e'
       Generate output for a 5206e ColdFire CPU.  The option is now
!      deprecated in favor of the equivalent '-mcpu=5206e'.
  
! '-m528x'
       Generate output for a member of the ColdFire 528X family.  The
!      option is now deprecated in favor of the equivalent '-mcpu=528x'.
  
! '-m5307'
       Generate output for a ColdFire 5307 CPU.  The option is now
!      deprecated in favor of the equivalent '-mcpu=5307'.
  
! '-m5407'
       Generate output for a ColdFire 5407 CPU.  The option is now
!      deprecated in favor of the equivalent '-mcpu=5407'.
  
! '-mcfv4e'
       Generate output for a ColdFire V4e family CPU (e.g. 547x/548x).
       This includes use of hardware floating-point instructions.  The
!      option is equivalent to '-mcpu=547x', and is now deprecated in
       favor of that option.
  
! '-m68020-40'
       Generate output for a 68040, without using any of the new
       instructions.  This results in code that can run relatively
       efficiently on either a 68020/68881 or a 68030 or a 68040.  The
!      generated code does use the 68881 instructions that are emulated on
!      the 68040.
  
!      The option is equivalent to '-march=68020' '-mtune=68020-40'.
  
! '-m68020-60'
       Generate output for a 68060, without using any of the new
       instructions.  This results in code that can run relatively
       efficiently on either a 68020/68881 or a 68030 or a 68040.  The
!      generated code does use the 68881 instructions that are emulated on
!      the 68060.
  
!      The option is equivalent to '-march=68020' '-mtune=68020-60'.
  
! '-mhard-float'
! '-m68881'
       Generate floating-point instructions.  This is the default for
       68020 and above, and for ColdFire devices that have an FPU.  It
!      defines the macro '__HAVE_68881__' on M680x0 targets and
!      '__mcffpu__' on ColdFire targets.
  
! '-msoft-float'
       Do not generate floating-point instructions; use library calls
       instead.  This is the default for 68000, 68010, and 68832 targets.
       It is also the default for ColdFire devices that have no FPU.
  
! '-mdiv'
! '-mno-div'
       Generate (do not generate) ColdFire hardware divide and remainder
!      instructions.  If '-march' is used without '-mcpu', the default is
!      "on" for ColdFire architectures and "off" for M680x0 architectures.
!      Otherwise, the default is taken from the target CPU (either the
!      default CPU, or the one specified by '-mcpu').  For example, the
!      default is "off" for '-mcpu=5206' and "on" for '-mcpu=5206e'.
  
!      GCC defines the macro '__mcfhwdiv__' when this option is enabled.
  
! '-mshort'
!      Consider type 'int' to be 16 bits wide, like 'short int'.
       Additionally, parameters passed on the stack are also aligned to a
       16-bit boundary even on targets whose API mandates promotion to
       32-bit.
  
! '-mno-short'
!      Do not consider type 'int' to be 16 bits wide.  This is the
       default.
  
! '-mnobitfield'
! '-mno-bitfield'
!      Do not use the bit-field instructions.  The '-m68000', '-mcpu32'
!      and '-m5200' options imply '-mnobitfield'.
  
! '-mbitfield'
!      Do use the bit-field instructions.  The '-m68020' option implies
!      '-mbitfield'.  This is the default if you use a configuration
       designed for a 68020.
  
! '-mrtd'
       Use a different function-calling convention, in which functions
!      that take a fixed number of arguments return with the 'rtd'
       instruction, which pops their arguments while returning.  This
       saves one instruction in the caller since there is no need to pop
       the arguments there.
*************** given below.
*** 16288,16365 ****
       compiled with the Unix compiler.
  
       Also, you must provide function prototypes for all functions that
!      take variable numbers of arguments (including `printf'); otherwise
       incorrect code is generated for calls to those functions.
  
       In addition, seriously incorrect code results if you call a
       function with too many arguments.  (Normally, extra arguments are
       harmlessly ignored.)
  
!      The `rtd' instruction is supported by the 68010, 68020, 68030,
       68040, 68060 and CPU32 processors, but not by the 68000 or 5200.
  
! `-mno-rtd'
!      Do not use the calling conventions selected by `-mrtd'.  This is
       the default.
  
! `-malign-int'
! `-mno-align-int'
!      Control whether GCC aligns `int', `long', `long long', `float',
!      `double', and `long double' variables on a 32-bit boundary
!      (`-malign-int') or a 16-bit boundary (`-mno-align-int').  Aligning
       variables on 32-bit boundaries produces code that runs somewhat
       faster on processors with 32-bit busses at the expense of more
       memory.
  
!      *Warning:* if you use the `-malign-int' switch, GCC aligns
       structures containing the above types differently than most
       published application binary interface specifications for the m68k.
  
! `-mpcrel'
       Use the pc-relative addressing mode of the 68000 directly, instead
       of using a global offset table.  At present, this option implies
!      `-fpic', allowing at most a 16-bit offset for pc-relative
!      addressing.  `-fPIC' is not presently supported with `-mpcrel',
       though this could be supported for 68020 and higher processors.
  
! `-mno-strict-align'
! `-mstrict-align'
       Do not (do) assume that unaligned memory references are handled by
       the system.
  
! `-msep-data'
       Generate code that allows the data segment to be located in a
       different area of memory from the text segment.  This allows for
       execute-in-place in an environment without virtual memory
!      management.  This option implies `-fPIC'.
  
! `-mno-sep-data'
       Generate code that assumes that the data segment follows the text
       segment.  This is the default.
  
! `-mid-shared-library'
       Generate code that supports shared libraries via the library ID
       method.  This allows for execute-in-place and shared libraries in
       an environment without virtual memory management.  This option
!      implies `-fPIC'.
  
! `-mno-id-shared-library'
       Generate code that doesn't assume ID-based shared libraries are
       being used.  This is the default.
  
! `-mshared-library-id=n'
       Specifies the identification number of the ID-based shared library
       being compiled.  Specifying a value of 0 generates more compact
       code; specifying other values forces the allocation of that number
       to the current library, but is no more space- or time-efficient
       than omitting this option.
  
! `-mxgot'
! `-mno-xgot'
       When generating position-independent code for ColdFire, generate
       code that works if the GOT has more than 8192 entries.  This code
       is larger and slower than code generated without this option.  On
!      M680x0 processors, this option is not needed; `-fPIC' suffices.
  
       GCC normally uses a single instruction to load values from the GOT.
       While this is relatively efficient, it only works if the GOT is
--- 16222,16299 ----
       compiled with the Unix compiler.
  
       Also, you must provide function prototypes for all functions that
!      take variable numbers of arguments (including 'printf'); otherwise
       incorrect code is generated for calls to those functions.
  
       In addition, seriously incorrect code results if you call a
       function with too many arguments.  (Normally, extra arguments are
       harmlessly ignored.)
  
!      The 'rtd' instruction is supported by the 68010, 68020, 68030,
       68040, 68060 and CPU32 processors, but not by the 68000 or 5200.
  
! '-mno-rtd'
!      Do not use the calling conventions selected by '-mrtd'.  This is
       the default.
  
! '-malign-int'
! '-mno-align-int'
!      Control whether GCC aligns 'int', 'long', 'long long', 'float',
!      'double', and 'long double' variables on a 32-bit boundary
!      ('-malign-int') or a 16-bit boundary ('-mno-align-int').  Aligning
       variables on 32-bit boundaries produces code that runs somewhat
       faster on processors with 32-bit busses at the expense of more
       memory.
  
!      *Warning:* if you use the '-malign-int' switch, GCC aligns
       structures containing the above types differently than most
       published application binary interface specifications for the m68k.
  
! '-mpcrel'
       Use the pc-relative addressing mode of the 68000 directly, instead
       of using a global offset table.  At present, this option implies
!      '-fpic', allowing at most a 16-bit offset for pc-relative
!      addressing.  '-fPIC' is not presently supported with '-mpcrel',
       though this could be supported for 68020 and higher processors.
  
! '-mno-strict-align'
! '-mstrict-align'
       Do not (do) assume that unaligned memory references are handled by
       the system.
  
! '-msep-data'
       Generate code that allows the data segment to be located in a
       different area of memory from the text segment.  This allows for
       execute-in-place in an environment without virtual memory
!      management.  This option implies '-fPIC'.
  
! '-mno-sep-data'
       Generate code that assumes that the data segment follows the text
       segment.  This is the default.
  
! '-mid-shared-library'
       Generate code that supports shared libraries via the library ID
       method.  This allows for execute-in-place and shared libraries in
       an environment without virtual memory management.  This option
!      implies '-fPIC'.
  
! '-mno-id-shared-library'
       Generate code that doesn't assume ID-based shared libraries are
       being used.  This is the default.
  
! '-mshared-library-id=n'
       Specifies the identification number of the ID-based shared library
       being compiled.  Specifying a value of 0 generates more compact
       code; specifying other values forces the allocation of that number
       to the current library, but is no more space- or time-efficient
       than omitting this option.
  
! '-mxgot'
! '-mno-xgot'
       When generating position-independent code for ColdFire, generate
       code that works if the GOT has more than 8192 entries.  This code
       is larger and slower than code generated without this option.  On
!      M680x0 processors, this option is not needed; '-fPIC' suffices.
  
       GCC normally uses a single instruction to load values from the GOT.
       While this is relatively efficient, it only works if the GOT is
*************** given below.
*** 16368,16575 ****
  
            relocation truncated to fit: R_68K_GOT16O foobar
  
!      If this happens, you should recompile your code with `-mxgot'.  It
       should then work with very large GOTs.  However, code generated
!      with `-mxgot' is less efficient, since it takes 4 instructions to
       fetch the value of a global symbol.
  
       Note that some linkers, including newer versions of the GNU linker,
       can create multiple GOTs and sort GOT entries.  If you have such a
!      linker, you should only need to use `-mxgot' when compiling a
       single object file that accesses more than 8192 GOT entries.  Very
       few do.
  
       These options have no effect unless GCC is generating
       position-independent code.
  
- 
  
  File: gcc.info,  Node: MCore Options,  Next: MeP Options,  Prev: M680x0 Options,  Up: Submodel Options
  
  3.18.23 MCore Options
  ---------------------
  
! These are the `-m' options defined for the Motorola M*Core processors.
  
! `-mhardlit'
! `-mno-hardlit'
       Inline constants into the code stream if it can be done in two
       instructions or less.
  
! `-mdiv'
! `-mno-div'
       Use the divide instruction.  (Enabled by default).
  
! `-mrelax-immediate'
! `-mno-relax-immediate'
       Allow arbitrary-sized immediates in bit operations.
  
! `-mwide-bitfields'
! `-mno-wide-bitfields'
!      Always treat bit-fields as `int'-sized.
  
! `-m4byte-functions'
! `-mno-4byte-functions'
       Force all functions to be aligned to a 4-byte boundary.
  
! `-mcallgraph-data'
! `-mno-callgraph-data'
       Emit callgraph information.
  
! `-mslow-bytes'
! `-mno-slow-bytes'
       Prefer word access when reading byte quantities.
  
! `-mlittle-endian'
! `-mbig-endian'
       Generate code for a little-endian target.
  
! `-m210'
! `-m340'
       Generate code for the 210 processor.
  
! `-mno-lsim'
       Assume that runtime support has been provided and so omit the
!      simulator library (`libsim.a)' from the linker command line.
  
! `-mstack-increment=SIZE'
       Set the maximum amount for a single stack increment operation.
       Large values can increase the speed of programs that contain
       functions that need a large amount of stack space, but they can
       also trigger a segmentation fault if the stack is extended too
       much.  The default value is 0x1000.
  
- 
  
  File: gcc.info,  Node: MeP Options,  Next: MicroBlaze Options,  Prev: MCore Options,  Up: Submodel Options
  
  3.18.24 MeP Options
  -------------------
  
! `-mabsdiff'
!      Enables the `abs' instruction, which is the absolute difference
       between two registers.
  
! `-mall-opts'
       Enables all the optional instructions--average, multiply, divide,
       bit operations, leading zero, absolute difference, min/max, clip,
       and saturation.
  
! `-maverage'
!      Enables the `ave' instruction, which computes the average of two
       registers.
  
! `-mbased=N'
!      Variables of size N bytes or smaller are placed in the `.based'
!      section by default.  Based variables use the `$tp' register as a
!      base register, and there is a 128-byte limit to the `.based'
       section.
  
! `-mbitops'
!      Enables the bit operation instructions--bit test (`btstm'), set
!      (`bsetm'), clear (`bclrm'), invert (`bnotm'), and test-and-set
!      (`tas').
  
! `-mc=NAME'
       Selects which section constant data is placed in.  NAME may be
!      `tiny', `near', or `far'.
  
! `-mclip'
!      Enables the `clip' instruction.  Note that `-mclip' is not useful
!      unless you also provide `-mminmax'.
  
! `-mconfig=NAME'
       Selects one of the built-in core configurations.  Each MeP chip has
!      one or more modules in it; each module has a core CPU and a
!      variety of coprocessors, optional instructions, and peripherals.
!      The `MeP-Integrator' tool, not part of GCC, provides these
       configurations through this option; using this option is the same
       as using all the corresponding command-line options.  The default
!      configuration is `default'.
  
! `-mcop'
       Enables the coprocessor instructions.  By default, this is a 32-bit
       coprocessor.  Note that the coprocessor is normally enabled via the
!      `-mconfig=' option.
  
! `-mcop32'
       Enables the 32-bit coprocessor's instructions.
  
! `-mcop64'
       Enables the 64-bit coprocessor's instructions.
  
! `-mivc2'
       Enables IVC2 scheduling.  IVC2 is a 64-bit VLIW coprocessor.
  
! `-mdc'
!      Causes constant variables to be placed in the `.near' section.
  
! `-mdiv'
!      Enables the `div' and `divu' instructions.
  
! `-meb'
       Generate big-endian code.
  
! `-mel'
       Generate little-endian code.
  
! `-mio-volatile'
!      Tells the compiler that any variable marked with the `io'
!      attribute is to be considered volatile.
  
! `-ml'
!      Causes variables to be assigned to the `.far' section by default.
  
! `-mleadz'
!      Enables the `leadz' (leading zero) instruction.
  
! `-mm'
!      Causes variables to be assigned to the `.near' section by default.
  
! `-mminmax'
!      Enables the `min' and `max' instructions.
  
! `-mmult'
       Enables the multiplication and multiply-accumulate instructions.
  
! `-mno-opts'
!      Disables all the optional instructions enabled by `-mall-opts'.
  
! `-mrepeat'
!      Enables the `repeat' and `erepeat' instructions, used for
       low-overhead looping.
  
! `-ms'
!      Causes all variables to default to the `.tiny' section.  Note that
       there is a 65536-byte limit to this section.  Accesses to these
!      variables use the `%gp' base register.
  
! `-msatur'
       Enables the saturation instructions.  Note that the compiler does
       not currently generate these itself, but this option is included
!      for compatibility with other tools, like `as'.
  
! `-msdram'
       Link the SDRAM-based runtime instead of the default ROM-based
       runtime.
  
! `-msim'
       Link the simulator run-time libraries.
  
! `-msimnovec'
       Link the simulator runtime libraries, excluding built-in support
       for reset and exception vectors and tables.
  
! `-mtf'
!      Causes all functions to default to the `.far' section.  Without
!      this option, functions default to the `.near' section.
! 
! `-mtiny=N'
!      Variables that are N bytes or smaller are allocated to the `.tiny'
!      section.  These variables use the `$gp' base register.  The
!      default for this option is 4, but note that there's a 65536-byte
!      limit to the `.tiny' section.
  
  
  
  File: gcc.info,  Node: MicroBlaze Options,  Next: MIPS Options,  Prev: MeP Options,  Up: Submodel Options
--- 16302,16506 ----
  
            relocation truncated to fit: R_68K_GOT16O foobar
  
!      If this happens, you should recompile your code with '-mxgot'.  It
       should then work with very large GOTs.  However, code generated
!      with '-mxgot' is less efficient, since it takes 4 instructions to
       fetch the value of a global symbol.
  
       Note that some linkers, including newer versions of the GNU linker,
       can create multiple GOTs and sort GOT entries.  If you have such a
!      linker, you should only need to use '-mxgot' when compiling a
       single object file that accesses more than 8192 GOT entries.  Very
       few do.
  
       These options have no effect unless GCC is generating
       position-independent code.
  
  
  File: gcc.info,  Node: MCore Options,  Next: MeP Options,  Prev: M680x0 Options,  Up: Submodel Options
  
  3.18.23 MCore Options
  ---------------------
  
! These are the '-m' options defined for the Motorola M*Core processors.
  
! '-mhardlit'
! '-mno-hardlit'
       Inline constants into the code stream if it can be done in two
       instructions or less.
  
! '-mdiv'
! '-mno-div'
       Use the divide instruction.  (Enabled by default).
  
! '-mrelax-immediate'
! '-mno-relax-immediate'
       Allow arbitrary-sized immediates in bit operations.
  
! '-mwide-bitfields'
! '-mno-wide-bitfields'
!      Always treat bit-fields as 'int'-sized.
  
! '-m4byte-functions'
! '-mno-4byte-functions'
       Force all functions to be aligned to a 4-byte boundary.
  
! '-mcallgraph-data'
! '-mno-callgraph-data'
       Emit callgraph information.
  
! '-mslow-bytes'
! '-mno-slow-bytes'
       Prefer word access when reading byte quantities.
  
! '-mlittle-endian'
! '-mbig-endian'
       Generate code for a little-endian target.
  
! '-m210'
! '-m340'
       Generate code for the 210 processor.
  
! '-mno-lsim'
       Assume that runtime support has been provided and so omit the
!      simulator library ('libsim.a)' from the linker command line.
  
! '-mstack-increment=SIZE'
       Set the maximum amount for a single stack increment operation.
       Large values can increase the speed of programs that contain
       functions that need a large amount of stack space, but they can
       also trigger a segmentation fault if the stack is extended too
       much.  The default value is 0x1000.
  
  
  File: gcc.info,  Node: MeP Options,  Next: MicroBlaze Options,  Prev: MCore Options,  Up: Submodel Options
  
  3.18.24 MeP Options
  -------------------
  
! '-mabsdiff'
!      Enables the 'abs' instruction, which is the absolute difference
       between two registers.
  
! '-mall-opts'
       Enables all the optional instructions--average, multiply, divide,
       bit operations, leading zero, absolute difference, min/max, clip,
       and saturation.
  
! '-maverage'
!      Enables the 'ave' instruction, which computes the average of two
       registers.
  
! '-mbased=N'
!      Variables of size N bytes or smaller are placed in the '.based'
!      section by default.  Based variables use the '$tp' register as a
!      base register, and there is a 128-byte limit to the '.based'
       section.
  
! '-mbitops'
!      Enables the bit operation instructions--bit test ('btstm'), set
!      ('bsetm'), clear ('bclrm'), invert ('bnotm'), and test-and-set
!      ('tas').
  
! '-mc=NAME'
       Selects which section constant data is placed in.  NAME may be
!      'tiny', 'near', or 'far'.
  
! '-mclip'
!      Enables the 'clip' instruction.  Note that '-mclip' is not useful
!      unless you also provide '-mminmax'.
  
! '-mconfig=NAME'
       Selects one of the built-in core configurations.  Each MeP chip has
!      one or more modules in it; each module has a core CPU and a variety
!      of coprocessors, optional instructions, and peripherals.  The
!      'MeP-Integrator' tool, not part of GCC, provides these
       configurations through this option; using this option is the same
       as using all the corresponding command-line options.  The default
!      configuration is 'default'.
  
! '-mcop'
       Enables the coprocessor instructions.  By default, this is a 32-bit
       coprocessor.  Note that the coprocessor is normally enabled via the
!      '-mconfig=' option.
  
! '-mcop32'
       Enables the 32-bit coprocessor's instructions.
  
! '-mcop64'
       Enables the 64-bit coprocessor's instructions.
  
! '-mivc2'
       Enables IVC2 scheduling.  IVC2 is a 64-bit VLIW coprocessor.
  
! '-mdc'
!      Causes constant variables to be placed in the '.near' section.
  
! '-mdiv'
!      Enables the 'div' and 'divu' instructions.
  
! '-meb'
       Generate big-endian code.
  
! '-mel'
       Generate little-endian code.
  
! '-mio-volatile'
!      Tells the compiler that any variable marked with the 'io' attribute
!      is to be considered volatile.
  
! '-ml'
!      Causes variables to be assigned to the '.far' section by default.
  
! '-mleadz'
!      Enables the 'leadz' (leading zero) instruction.
  
! '-mm'
!      Causes variables to be assigned to the '.near' section by default.
  
! '-mminmax'
!      Enables the 'min' and 'max' instructions.
  
! '-mmult'
       Enables the multiplication and multiply-accumulate instructions.
  
! '-mno-opts'
!      Disables all the optional instructions enabled by '-mall-opts'.
  
! '-mrepeat'
!      Enables the 'repeat' and 'erepeat' instructions, used for
       low-overhead looping.
  
! '-ms'
!      Causes all variables to default to the '.tiny' section.  Note that
       there is a 65536-byte limit to this section.  Accesses to these
!      variables use the '%gp' base register.
  
! '-msatur'
       Enables the saturation instructions.  Note that the compiler does
       not currently generate these itself, but this option is included
!      for compatibility with other tools, like 'as'.
  
! '-msdram'
       Link the SDRAM-based runtime instead of the default ROM-based
       runtime.
  
! '-msim'
       Link the simulator run-time libraries.
  
! '-msimnovec'
       Link the simulator runtime libraries, excluding built-in support
       for reset and exception vectors and tables.
  
! '-mtf'
!      Causes all functions to default to the '.far' section.  Without
!      this option, functions default to the '.near' section.
  
+ '-mtiny=N'
+      Variables that are N bytes or smaller are allocated to the '.tiny'
+      section.  These variables use the '$gp' base register.  The default
+      for this option is 4, but note that there's a 65536-byte limit to
+      the '.tiny' section.
  
  
  File: gcc.info,  Node: MicroBlaze Options,  Next: MIPS Options,  Prev: MeP Options,  Up: Submodel Options
*************** File: gcc.info,  Node: MicroBlaze Option
*** 16577,16668 ****
  3.18.25 MicroBlaze Options
  --------------------------
  
! `-msoft-float'
       Use software emulation for floating point (default).
  
! `-mhard-float'
       Use hardware floating-point instructions.
  
! `-mmemcpy'
!      Do not optimize block moves, use `memcpy'.
  
! `-mno-clearbss'
!      This option is deprecated.  Use `-fno-zero-initialized-in-bss'
       instead.
  
! `-mcpu=CPU-TYPE'
!      Use features of, and schedule code for, the given CPU.  Supported
!      values are in the format `vX.YY.Z', where X is a major version, YY
       is the minor version, and Z is compatibility code.  Example values
!      are `v3.00.a', `v4.00.b', `v5.00.a', `v5.00.b', `v5.00.b',
!      `v6.00.a'.
  
! `-mxl-soft-mul'
       Use software multiply emulation (default).
  
! `-mxl-soft-div'
       Use software emulation for divides (default).
  
! `-mxl-barrel-shift'
       Use the hardware barrel shifter.
  
! `-mxl-pattern-compare'
       Use pattern compare instructions.
  
! `-msmall-divides'
       Use table lookup optimization for small signed integer divisions.
  
! `-mxl-stack-check'
!      This option is deprecated.  Use `-fstack-check' instead.
  
! `-mxl-gp-opt'
!      Use GP-relative `.sdata'/`.sbss' sections.
  
! `-mxl-multiply-high'
       Use multiply high instructions for high part of 32x32 multiply.
  
! `-mxl-float-convert'
       Use hardware floating-point conversion instructions.
  
! `-mxl-float-sqrt'
       Use hardware floating-point square root instruction.
  
! `-mbig-endian'
       Generate code for a big-endian target.
  
! `-mlittle-endian'
       Generate code for a little-endian target.
  
! `-mxl-reorder'
       Use reorder instructions (swap and byte reversed load/store).
  
! `-mxl-mode-APP-MODEL'
       Select application model APP-MODEL.  Valid models are
!     `executable'
!           normal executable (default), uses startup code `crt0.o'.
  
!     `xmdstub'
            for use with Xilinx Microprocessor Debugger (XMD) based
!           software intrusive debug agent called xmdstub. This uses
!           startup file `crt1.o' and sets the start address of the
            program to 0x800.
  
!     `bootstrap'
            for applications that are loaded using a bootloader.  This
!           model uses startup file `crt2.o' which does not contain a
!           processor reset vector handler. This is suitable for
            transferring control on a processor reset to the bootloader
            rather than the application.
  
!     `novectors'
            for applications that do not require any of the MicroBlaze
!           vectors. This option may be useful for applications running
!           within a monitoring application. This model uses `crt3.o' as
            a startup file.
  
!      Option `-xl-mode-APP-MODEL' is a deprecated alias for
!      `-mxl-mode-APP-MODEL'.
! 
  
  
  File: gcc.info,  Node: MIPS Options,  Next: MMIX Options,  Prev: MicroBlaze Options,  Up: Submodel Options
--- 16508,16598 ----
  3.18.25 MicroBlaze Options
  --------------------------
  
! '-msoft-float'
       Use software emulation for floating point (default).
  
! '-mhard-float'
       Use hardware floating-point instructions.
  
! '-mmemcpy'
!      Do not optimize block moves, use 'memcpy'.
  
! '-mno-clearbss'
!      This option is deprecated.  Use '-fno-zero-initialized-in-bss'
       instead.
  
! '-mcpu=CPU-TYPE'
!      Use features of, and schedule code for, the given CPU. Supported
!      values are in the format 'vX.YY.Z', where X is a major version, YY
       is the minor version, and Z is compatibility code.  Example values
!      are 'v3.00.a', 'v4.00.b', 'v5.00.a', 'v5.00.b', 'v5.00.b',
!      'v6.00.a'.
  
! '-mxl-soft-mul'
       Use software multiply emulation (default).
  
! '-mxl-soft-div'
       Use software emulation for divides (default).
  
! '-mxl-barrel-shift'
       Use the hardware barrel shifter.
  
! '-mxl-pattern-compare'
       Use pattern compare instructions.
  
! '-msmall-divides'
       Use table lookup optimization for small signed integer divisions.
  
! '-mxl-stack-check'
!      This option is deprecated.  Use '-fstack-check' instead.
  
! '-mxl-gp-opt'
!      Use GP-relative '.sdata'/'.sbss' sections.
  
! '-mxl-multiply-high'
       Use multiply high instructions for high part of 32x32 multiply.
  
! '-mxl-float-convert'
       Use hardware floating-point conversion instructions.
  
! '-mxl-float-sqrt'
       Use hardware floating-point square root instruction.
  
! '-mbig-endian'
       Generate code for a big-endian target.
  
! '-mlittle-endian'
       Generate code for a little-endian target.
  
! '-mxl-reorder'
       Use reorder instructions (swap and byte reversed load/store).
  
! '-mxl-mode-APP-MODEL'
       Select application model APP-MODEL.  Valid models are
!      'executable'
!           normal executable (default), uses startup code 'crt0.o'.
  
!      'xmdstub'
            for use with Xilinx Microprocessor Debugger (XMD) based
!           software intrusive debug agent called xmdstub.  This uses
!           startup file 'crt1.o' and sets the start address of the
            program to 0x800.
  
!      'bootstrap'
            for applications that are loaded using a bootloader.  This
!           model uses startup file 'crt2.o' which does not contain a
!           processor reset vector handler.  This is suitable for
            transferring control on a processor reset to the bootloader
            rather than the application.
  
!      'novectors'
            for applications that do not require any of the MicroBlaze
!           vectors.  This option may be useful for applications running
!           within a monitoring application.  This model uses 'crt3.o' as
            a startup file.
  
!      Option '-xl-mode-APP-MODEL' is a deprecated alias for
!      '-mxl-mode-APP-MODEL'.
  
  
  File: gcc.info,  Node: MIPS Options,  Next: MMIX Options,  Prev: MicroBlaze Options,  Up: Submodel Options
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 16670,16900 ****
  3.18.26 MIPS Options
  --------------------
  
! `-EB'
       Generate big-endian code.
  
! `-EL'
!      Generate little-endian code.  This is the default for `mips*el-*-*'
       configurations.
  
! `-march=ARCH'
!      Generate code that runs on ARCH, which can be the name of a
!      generic MIPS ISA, or the name of a particular processor.  The ISA
!      names are: `mips1', `mips2', `mips3', `mips4', `mips32',
!      `mips32r2', `mips32r3', `mips32r5', `mips32r6', `mips64',
!      `mips64r2', `mips64r3', `mips64r5' and `mips64r6'.  The processor
!      names are: `4kc', `4km', `4kp', `4ksc', `4kec', `4kem', `4kep',
!      `4ksd', `5kc', `5kf', `20kc', `24kc', `24kf2_1', `24kf1_1',
!      `24kec', `24kef2_1', `24kef1_1', `34kc', `34kf2_1', `34kf1_1',
!      `34kn', `74kc', `74kf2_1', `74kf1_1', `74kf3_2', `1004kc',
!      `1004kf2_1', `1004kf1_1', `i6400', `interaptiv', `loongson2e',
!      `loongson2f', `loongson3a', `m4k', `m14k', `m14kc', `m14ke',
!      `m14kec', `m5100', `m5101', `octeon', `octeon+', `octeon2',
!      `octeon3', `orion', `p5600', `r2000', `r3000', `r3900', `r4000',
!      `r4400', `r4600', `r4650', `r4700', `r6000', `r8000', `rm7000',
!      `rm9000', `r10000', `r12000', `r14000', `r16000', `sb1', `sr71000',
!      `vr4100', `vr4111', `vr4120', `vr4130', `vr4300', `vr5000',
!      `vr5400', `vr5500', `xlr' and `xlp'.  The special value `from-abi'
!      selects the most compatible architecture for the selected ABI
!      (that is, `mips1' for 32-bit ABIs and `mips3' for 64-bit ABIs).
  
!      The native Linux/GNU toolchain also supports the value `native',
       which selects the best architecture option for the host processor.
!      `-march=native' has no effect if GCC does not recognize the
       processor.
  
!      In processor names, a final `000' can be abbreviated as `k' (for
!      example, `-march=r2k').  Prefixes are optional, and `vr' may be
!      written `r'.
  
!      Names of the form `Nf2_1' refer to processors with FPUs clocked at
!      half the rate of the core, names of the form `Nf1_1' refer to
       processors with FPUs clocked at the same rate as the core, and
!      names of the form `Nf3_2' refer to processors with FPUs clocked a
       ratio of 3:2 with respect to the core.  For compatibility reasons,
!      `Nf' is accepted as a synonym for `Nf2_1' while `Nx' and `Bfx' are
!      accepted as synonyms for `Nf1_1'.
  
       GCC defines two macros based on the value of this option.  The
!      first is `_MIPS_ARCH', which gives the name of target
!      architecture, as a string.  The second has the form
!      `_MIPS_ARCH_FOO', where FOO is the capitalized value of
!      `_MIPS_ARCH'.  For example, `-march=r2000' sets `_MIPS_ARCH' to
!      `"r2000"' and defines the macro `_MIPS_ARCH_R2000'.
  
!      Note that the `_MIPS_ARCH' macro uses the processor names given
       above.  In other words, it has the full prefix and does not
!      abbreviate `000' as `k'.  In the case of `from-abi', the macro
!      names the resolved architecture (either `"mips1"' or `"mips3"').
!      It names the default architecture when no `-march' option is given.
  
! `-mtune=ARCH'
       Optimize for ARCH.  Among other things, this option controls the
       way instructions are scheduled, and the perceived cost of
       arithmetic operations.  The list of ARCH values is the same as for
!      `-march'.
  
       When this option is not used, GCC optimizes for the processor
!      specified by `-march'.  By using `-march' and `-mtune' together,
!      it is possible to generate code that runs on a family of
!      processors, but optimize the code for one particular member of
!      that family.
  
!      `-mtune' defines the macros `_MIPS_TUNE' and `_MIPS_TUNE_FOO',
!      which work in the same way as the `-march' ones described above.
  
! `-mips1'
!      Equivalent to `-march=mips1'.
  
! `-mips2'
!      Equivalent to `-march=mips2'.
  
! `-mips3'
!      Equivalent to `-march=mips3'.
  
! `-mips4'
!      Equivalent to `-march=mips4'.
  
! `-mips32'
!      Equivalent to `-march=mips32'.
  
! `-mips32r3'
!      Equivalent to `-march=mips32r3'.
  
! `-mips32r5'
!      Equivalent to `-march=mips32r5'.
  
! `-mips32r6'
!      Equivalent to `-march=mips32r6'.
  
! `-mips64'
!      Equivalent to `-march=mips64'.
  
! `-mips64r2'
!      Equivalent to `-march=mips64r2'.
  
! `-mips64r3'
!      Equivalent to `-march=mips64r3'.
  
! `-mips64r5'
!      Equivalent to `-march=mips64r5'.
  
! `-mips64r6'
!      Equivalent to `-march=mips64r6'.
  
! `-mips16'
! `-mno-mips16'
       Generate (do not generate) MIPS16 code.  If GCC is targeting a
       MIPS32 or MIPS64 architecture, it makes use of the MIPS16e ASE.
  
       MIPS16 code generation can also be controlled on a per-function
!      basis by means of `mips16' and `nomips16' attributes.  *Note
       Function Attributes::, for more information.
  
! `-mflip-mips16'
       Generate MIPS16 code on alternating functions.  This option is
       provided for regression testing of mixed MIPS16/non-MIPS16 code
       generation, and is not intended for ordinary use in compiling user
       code.
  
! `-minterlink-compressed'
! 
! `-mno-interlink-compressed'
       Require (do not require) that code using the standard
       (uncompressed) MIPS ISA be link-compatible with MIPS16 and
       microMIPS code, and vice versa.
  
       For example, code using the standard ISA encoding cannot jump
       directly to MIPS16 or microMIPS code; it must either use a call or
!      an indirect jump.  `-minterlink-compressed' therefore disables
       direct jumps unless GCC knows that the target of the jump is not
       compressed.
  
! `-minterlink-mips16'
! `-mno-interlink-mips16'
!      Aliases of `-minterlink-compressed' and
!      `-mno-interlink-compressed'.  These options predate the microMIPS
       ASE and are retained for backwards compatibility.
  
! `-mabi=32'
! `-mabi=o64'
! `-mabi=n32'
! `-mabi=64'
! `-mabi=eabi'
       Generate code for the given ABI.
  
       Note that the EABI has a 32-bit and a 64-bit variant.  GCC normally
       generates 64-bit code when you select a 64-bit architecture, but
!      you can use `-mgp32' to get 32-bit code instead.
  
       For information about the O64 ABI, see
!      `http://gcc.gnu.org/projects/mipso64-abi.html'.
  
       GCC supports a variant of the o32 ABI in which floating-point
       registers are 64 rather than 32 bits wide.  You can select this
!      combination with `-mabi=32' `-mfp64'.  This ABI relies on the
!      `mthc1' and `mfhc1' instructions and is therefore only supported
       for MIPS32R2, MIPS32R3 and MIPS32R5 processors.
  
       The register assignments for arguments and return values remain the
       same, but each scalar value is passed in a single 64-bit register
       rather than a pair of 32-bit registers.  For example, scalar
!      floating-point values are returned in `$f0' only, not a
!      `$f0'/`$f1' pair.  The set of call-saved registers also remains
!      the same in that the even-numbered double-precision registers are
!      saved.
  
       Two additional variants of the o32 ABI are supported to enable a
       transition from 32-bit to 64-bit registers.  These are FPXX
!      (`-mfpxx') and FP64A (`-mfp64' `-mno-odd-spreg').  The FPXX
       extension mandates that all code must execute correctly when run
!      using 32-bit or 64-bit registers.  The code can be interlinked
!      with either FP32 or FP64, but not both.  The FP64A extension is
!      similar to the FP64 extension but forbids the use of odd-numbered
       single-precision registers.  This can be used in conjunction with
!      the `FRE' mode of FPUs in MIPS32R5 processors and allows both FP32
       and FP64A code to interlink and run in the same process without
       changing FPU modes.
  
! `-mabicalls'
! `-mno-abicalls'
       Generate (do not generate) code that is suitable for SVR4-style
!      dynamic objects.  `-mabicalls' is the default for SVR4-based
       systems.
  
! `-mshared'
! `-mno-shared'
       Generate (do not generate) code that is fully position-independent,
       and that can therefore be linked into shared libraries.  This
!      option only affects `-mabicalls'.
  
!      All `-mabicalls' code has traditionally been position-independent,
!      regardless of options like `-fPIC' and `-fpic'.  However, as an
       extension, the GNU toolchain allows executables to use absolute
       accesses for locally-binding symbols.  It can also use shorter GP
       initialization sequences and generate direct calls to
!      locally-defined functions.  This mode is selected by `-mno-shared'.
  
!      `-mno-shared' depends on binutils 2.16 or higher and generates
       objects that can only be linked by the GNU linker.  However, the
       option does not affect the ABI of the final executable; it only
!      affects the ABI of relocatable objects.  Using `-mno-shared'
       generally makes executables both smaller and quicker.
  
!      `-mshared' is the default.
  
! `-mplt'
! `-mno-plt'
       Assume (do not assume) that the static and dynamic linkers support
!      PLTs and copy relocations.  This option only affects `-mno-shared
       -mabicalls'.  For the n64 ABI, this option has no effect without
!      `-msym32'.
  
!      You can make `-mplt' the default by configuring GCC with
!      `--with-mips-plt'.  The default is `-mno-plt' otherwise.
  
! `-mxgot'
! `-mno-xgot'
       Lift (do not lift) the usual restrictions on the size of the global
       offset table.
  
--- 16600,16827 ----
  3.18.26 MIPS Options
  --------------------
  
! '-EB'
       Generate big-endian code.
  
! '-EL'
!      Generate little-endian code.  This is the default for 'mips*el-*-*'
       configurations.
  
! '-march=ARCH'
!      Generate code that runs on ARCH, which can be the name of a generic
!      MIPS ISA, or the name of a particular processor.  The ISA names
!      are: 'mips1', 'mips2', 'mips3', 'mips4', 'mips32', 'mips32r2',
!      'mips32r3', 'mips32r5', 'mips32r6', 'mips64', 'mips64r2',
!      'mips64r3', 'mips64r5' and 'mips64r6'.  The processor names are:
!      '4kc', '4km', '4kp', '4ksc', '4kec', '4kem', '4kep', '4ksd', '5kc',
!      '5kf', '20kc', '24kc', '24kf2_1', '24kf1_1', '24kec', '24kef2_1',
!      '24kef1_1', '34kc', '34kf2_1', '34kf1_1', '34kn', '74kc',
!      '74kf2_1', '74kf1_1', '74kf3_2', '1004kc', '1004kf2_1',
!      '1004kf1_1', 'i6400', 'interaptiv', 'loongson2e', 'loongson2f',
!      'loongson3a', 'm4k', 'm14k', 'm14kc', 'm14ke', 'm14kec', 'm5100',
!      'm5101', 'octeon', 'octeon+', 'octeon2', 'octeon3', 'orion',
!      'p5600', 'r2000', 'r3000', 'r3900', 'r4000', 'r4400', 'r4600',
!      'r4650', 'r4700', 'r6000', 'r8000', 'rm7000', 'rm9000', 'r10000',
!      'r12000', 'r14000', 'r16000', 'sb1', 'sr71000', 'vr4100', 'vr4111',
!      'vr4120', 'vr4130', 'vr4300', 'vr5000', 'vr5400', 'vr5500', 'xlr'
!      and 'xlp'.  The special value 'from-abi' selects the most
!      compatible architecture for the selected ABI (that is, 'mips1' for
!      32-bit ABIs and 'mips3' for 64-bit ABIs).
  
!      The native Linux/GNU toolchain also supports the value 'native',
       which selects the best architecture option for the host processor.
!      '-march=native' has no effect if GCC does not recognize the
       processor.
  
!      In processor names, a final '000' can be abbreviated as 'k' (for
!      example, '-march=r2k').  Prefixes are optional, and 'vr' may be
!      written 'r'.
  
!      Names of the form 'Nf2_1' refer to processors with FPUs clocked at
!      half the rate of the core, names of the form 'Nf1_1' refer to
       processors with FPUs clocked at the same rate as the core, and
!      names of the form 'Nf3_2' refer to processors with FPUs clocked a
       ratio of 3:2 with respect to the core.  For compatibility reasons,
!      'Nf' is accepted as a synonym for 'Nf2_1' while 'Nx' and 'Bfx' are
!      accepted as synonyms for 'Nf1_1'.
  
       GCC defines two macros based on the value of this option.  The
!      first is '_MIPS_ARCH', which gives the name of target architecture,
!      as a string.  The second has the form '_MIPS_ARCH_FOO', where FOO
!      is the capitalized value of '_MIPS_ARCH'.  For example,
!      '-march=r2000' sets '_MIPS_ARCH' to '"r2000"' and defines the macro
!      '_MIPS_ARCH_R2000'.
  
!      Note that the '_MIPS_ARCH' macro uses the processor names given
       above.  In other words, it has the full prefix and does not
!      abbreviate '000' as 'k'.  In the case of 'from-abi', the macro
!      names the resolved architecture (either '"mips1"' or '"mips3"').
!      It names the default architecture when no '-march' option is given.
  
! '-mtune=ARCH'
       Optimize for ARCH.  Among other things, this option controls the
       way instructions are scheduled, and the perceived cost of
       arithmetic operations.  The list of ARCH values is the same as for
!      '-march'.
  
       When this option is not used, GCC optimizes for the processor
!      specified by '-march'.  By using '-march' and '-mtune' together, it
!      is possible to generate code that runs on a family of processors,
!      but optimize the code for one particular member of that family.
  
!      '-mtune' defines the macros '_MIPS_TUNE' and '_MIPS_TUNE_FOO',
!      which work in the same way as the '-march' ones described above.
  
! '-mips1'
!      Equivalent to '-march=mips1'.
  
! '-mips2'
!      Equivalent to '-march=mips2'.
  
! '-mips3'
!      Equivalent to '-march=mips3'.
  
! '-mips4'
!      Equivalent to '-march=mips4'.
  
! '-mips32'
!      Equivalent to '-march=mips32'.
  
! '-mips32r3'
!      Equivalent to '-march=mips32r3'.
  
! '-mips32r5'
!      Equivalent to '-march=mips32r5'.
  
! '-mips32r6'
!      Equivalent to '-march=mips32r6'.
  
! '-mips64'
!      Equivalent to '-march=mips64'.
  
! '-mips64r2'
!      Equivalent to '-march=mips64r2'.
  
! '-mips64r3'
!      Equivalent to '-march=mips64r3'.
  
! '-mips64r5'
!      Equivalent to '-march=mips64r5'.
  
! '-mips64r6'
!      Equivalent to '-march=mips64r6'.
  
! '-mips16'
! '-mno-mips16'
       Generate (do not generate) MIPS16 code.  If GCC is targeting a
       MIPS32 or MIPS64 architecture, it makes use of the MIPS16e ASE.
  
       MIPS16 code generation can also be controlled on a per-function
!      basis by means of 'mips16' and 'nomips16' attributes.  *Note
       Function Attributes::, for more information.
  
! '-mflip-mips16'
       Generate MIPS16 code on alternating functions.  This option is
       provided for regression testing of mixed MIPS16/non-MIPS16 code
       generation, and is not intended for ordinary use in compiling user
       code.
  
! '-minterlink-compressed'
! '-mno-interlink-compressed'
       Require (do not require) that code using the standard
       (uncompressed) MIPS ISA be link-compatible with MIPS16 and
       microMIPS code, and vice versa.
  
       For example, code using the standard ISA encoding cannot jump
       directly to MIPS16 or microMIPS code; it must either use a call or
!      an indirect jump.  '-minterlink-compressed' therefore disables
       direct jumps unless GCC knows that the target of the jump is not
       compressed.
  
! '-minterlink-mips16'
! '-mno-interlink-mips16'
!      Aliases of '-minterlink-compressed' and
!      '-mno-interlink-compressed'.  These options predate the microMIPS
       ASE and are retained for backwards compatibility.
  
! '-mabi=32'
! '-mabi=o64'
! '-mabi=n32'
! '-mabi=64'
! '-mabi=eabi'
       Generate code for the given ABI.
  
       Note that the EABI has a 32-bit and a 64-bit variant.  GCC normally
       generates 64-bit code when you select a 64-bit architecture, but
!      you can use '-mgp32' to get 32-bit code instead.
  
       For information about the O64 ABI, see
!      <http://gcc.gnu.org/projects/mipso64-abi.html>.
  
       GCC supports a variant of the o32 ABI in which floating-point
       registers are 64 rather than 32 bits wide.  You can select this
!      combination with '-mabi=32' '-mfp64'.  This ABI relies on the
!      'mthc1' and 'mfhc1' instructions and is therefore only supported
       for MIPS32R2, MIPS32R3 and MIPS32R5 processors.
  
       The register assignments for arguments and return values remain the
       same, but each scalar value is passed in a single 64-bit register
       rather than a pair of 32-bit registers.  For example, scalar
!      floating-point values are returned in '$f0' only, not a '$f0'/'$f1'
!      pair.  The set of call-saved registers also remains the same in
!      that the even-numbered double-precision registers are saved.
  
       Two additional variants of the o32 ABI are supported to enable a
       transition from 32-bit to 64-bit registers.  These are FPXX
!      ('-mfpxx') and FP64A ('-mfp64' '-mno-odd-spreg').  The FPXX
       extension mandates that all code must execute correctly when run
!      using 32-bit or 64-bit registers.  The code can be interlinked with
!      either FP32 or FP64, but not both.  The FP64A extension is similar
!      to the FP64 extension but forbids the use of odd-numbered
       single-precision registers.  This can be used in conjunction with
!      the 'FRE' mode of FPUs in MIPS32R5 processors and allows both FP32
       and FP64A code to interlink and run in the same process without
       changing FPU modes.
  
! '-mabicalls'
! '-mno-abicalls'
       Generate (do not generate) code that is suitable for SVR4-style
!      dynamic objects.  '-mabicalls' is the default for SVR4-based
       systems.
  
! '-mshared'
! '-mno-shared'
       Generate (do not generate) code that is fully position-independent,
       and that can therefore be linked into shared libraries.  This
!      option only affects '-mabicalls'.
  
!      All '-mabicalls' code has traditionally been position-independent,
!      regardless of options like '-fPIC' and '-fpic'.  However, as an
       extension, the GNU toolchain allows executables to use absolute
       accesses for locally-binding symbols.  It can also use shorter GP
       initialization sequences and generate direct calls to
!      locally-defined functions.  This mode is selected by '-mno-shared'.
  
!      '-mno-shared' depends on binutils 2.16 or higher and generates
       objects that can only be linked by the GNU linker.  However, the
       option does not affect the ABI of the final executable; it only
!      affects the ABI of relocatable objects.  Using '-mno-shared'
       generally makes executables both smaller and quicker.
  
!      '-mshared' is the default.
  
! '-mplt'
! '-mno-plt'
       Assume (do not assume) that the static and dynamic linkers support
!      PLTs and copy relocations.  This option only affects '-mno-shared
       -mabicalls'.  For the n64 ABI, this option has no effect without
!      '-msym32'.
  
!      You can make '-mplt' the default by configuring GCC with
!      '--with-mips-plt'.  The default is '-mno-plt' otherwise.
  
! '-mxgot'
! '-mno-xgot'
       Lift (do not lift) the usual restrictions on the size of the global
       offset table.
  
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 16905,17188 ****
  
            relocation truncated to fit: R_MIPS_GOT16 foobar
  
!      If this happens, you should recompile your code with `-mxgot'.
       This works with very large GOTs, although the code is also less
       efficient, since it takes three instructions to fetch the value of
       a global symbol.
  
       Note that some linkers can create multiple GOTs.  If you have such
!      a linker, you should only need to use `-mxgot' when a single object
       file accesses more than 64k's worth of GOT entries.  Very few do.
  
       These options have no effect unless GCC is generating position
       independent code.
  
! `-mgp32'
       Assume that general-purpose registers are 32 bits wide.
  
! `-mgp64'
       Assume that general-purpose registers are 64 bits wide.
  
! `-mfp32'
       Assume that floating-point registers are 32 bits wide.
  
! `-mfp64'
       Assume that floating-point registers are 64 bits wide.
  
! `-mfpxx'
       Do not assume the width of floating-point registers.
  
! `-mhard-float'
       Use floating-point coprocessor instructions.
  
! `-msoft-float'
       Do not use floating-point coprocessor instructions.  Implement
       floating-point calculations using library calls instead.
  
! `-mno-float'
!      Equivalent to `-msoft-float', but additionally asserts that the
       program being compiled does not perform any floating-point
       operations.  This option is presently supported only by some
       bare-metal MIPS configurations, where it may select a special set
       of libraries that lack all floating-point support (including, for
!      example, the floating-point `printf' formats).  If code compiled
!      with `-mno-float' accidentally contains floating-point operations,
       it is likely to suffer a link-time or run-time failure.
  
! `-msingle-float'
       Assume that the floating-point coprocessor only supports
       single-precision operations.
  
! `-mdouble-float'
       Assume that the floating-point coprocessor supports
       double-precision operations.  This is the default.
  
! `-modd-spreg'
! `-mno-odd-spreg'
       Enable the use of odd-numbered single-precision floating-point
!      registers for the o32 ABI.  This is the default for processors
!      that are known to support these registers.  When using the o32
!      FPXX ABI, `-mno-odd-spreg' is set by default.
  
! `-mabs=2008'
! `-mabs=legacy'
       These options control the treatment of the special not-a-number
!      (NaN) IEEE 754 floating-point data with the `abs.fmt' and
!      `neg.fmt' machine instructions.
  
!      By default or when `-mabs=legacy' is used the legacy treatment is
       selected.  In this case these instructions are considered
       arithmetic and avoided where correct operation is required and the
!      input operand might be a NaN.  A longer sequence of instructions
       that manipulate the sign bit of floating-point datum manually is
!      used instead unless the `-ffinite-math-only' option has also been
       specified.
  
!      The `-mabs=2008' option selects the IEEE 754-2008 treatment.  In
       this case these instructions are considered non-arithmetic and
!      therefore operating correctly in all cases, including in
!      particular where the input operand is a NaN.  These instructions
!      are therefore always used for the respective operations.
  
! `-mnan=2008'
! `-mnan=legacy'
       These options control the encoding of the special not-a-number
       (NaN) IEEE 754 floating-point data.
  
!      The `-mnan=legacy' option selects the legacy encoding.  In this
       case quiet NaNs (qNaNs) are denoted by the first bit of their
!      trailing significand field being 0, whereas signalling NaNs
!      (sNaNs) are denoted by the first bit of their trailing significand
!      field being 1.
  
!      The `-mnan=2008' option selects the IEEE 754-2008 encoding.  In
       this case qNaNs are denoted by the first bit of their trailing
       significand field being 1, whereas sNaNs are denoted by the first
       bit of their trailing significand field being 0.
  
!      The default is `-mnan=legacy' unless GCC has been configured with
!      `--with-nan=2008'.
  
! `-mllsc'
! `-mno-llsc'
!      Use (do not use) `ll', `sc', and `sync' instructions to implement
       atomic memory built-in functions.  When neither option is
       specified, GCC uses the instructions if the target architecture
       supports them.
  
!      `-mllsc' is useful if the runtime environment can emulate the
!      instructions and `-mno-llsc' can be useful when compiling for
       nonstandard ISAs.  You can make either option the default by
!      configuring GCC with `--with-llsc' and `--without-llsc'
!      respectively.  `--with-llsc' is the default for some
       configurations; see the installation documentation for details.
  
! `-mdsp'
! `-mno-dsp'
       Use (do not use) revision 1 of the MIPS DSP ASE.  *Note MIPS DSP
       Built-in Functions::.  This option defines the preprocessor macro
!      `__mips_dsp'.  It also defines `__mips_dsp_rev' to 1.
  
! `-mdspr2'
! `-mno-dspr2'
       Use (do not use) revision 2 of the MIPS DSP ASE.  *Note MIPS DSP
       Built-in Functions::.  This option defines the preprocessor macros
!      `__mips_dsp' and `__mips_dspr2'.  It also defines `__mips_dsp_rev'
       to 2.
  
! `-msmartmips'
! `-mno-smartmips'
       Use (do not use) the MIPS SmartMIPS ASE.
  
! `-mpaired-single'
! `-mno-paired-single'
       Use (do not use) paired-single floating-point instructions.  *Note
       MIPS Paired-Single Support::.  This option requires hardware
       floating-point support to be enabled.
  
! `-mdmx'
! `-mno-mdmx'
       Use (do not use) MIPS Digital Media Extension instructions.  This
       option can only be used when generating 64-bit code and requires
       hardware floating-point support to be enabled.
  
! `-mips3d'
! `-mno-mips3d'
       Use (do not use) the MIPS-3D ASE.  *Note MIPS-3D Built-in
!      Functions::.  The option `-mips3d' implies `-mpaired-single'.
  
! `-mmicromips'
! `-mno-micromips'
       Generate (do not generate) microMIPS code.
  
       MicroMIPS code generation can also be controlled on a per-function
!      basis by means of `micromips' and `nomicromips' attributes.  *Note
       Function Attributes::, for more information.
  
! `-mmt'
! `-mno-mt'
       Use (do not use) MT Multithreading instructions.
  
! `-mmcu'
! `-mno-mcu'
       Use (do not use) the MIPS MCU ASE instructions.
  
! `-meva'
! `-mno-eva'
       Use (do not use) the MIPS Enhanced Virtual Addressing instructions.
  
! `-mvirt'
! `-mno-virt'
       Use (do not use) the MIPS Virtualization Application Specific
       instructions.
  
! `-mxpa'
! `-mno-xpa'
       Use (do not use) the MIPS eXtended Physical Address (XPA)
       instructions.
  
! `-mlong64'
!      Force `long' types to be 64 bits wide.  See `-mlong32' for an
       explanation of the default and the way that the pointer size is
       determined.
  
! `-mlong32'
!      Force `long', `int', and pointer types to be 32 bits wide.
  
!      The default size of `int's, `long's and pointers depends on the
!      ABI.  All the supported ABIs use 32-bit `int's.  The n64 ABI uses
!      64-bit `long's, as does the 64-bit EABI; the others use 32-bit
!      `long's.  Pointers are the same size as `long's, or the same size
       as integer registers, whichever is smaller.
  
! `-msym32'
! `-mno-sym32'
       Assume (do not assume) that all symbols have 32-bit values,
       regardless of the selected ABI.  This option is useful in
!      combination with `-mabi=64' and `-mno-abicalls' because it allows
       GCC to generate shorter and faster references to symbolic
       addresses.
  
! `-G NUM'
       Put definitions of externally-visible data in a small data section
       if that data is no bigger than NUM bytes.  GCC can then generate
!      more efficient accesses to the data; see `-mgpopt' for details.
  
!      The default `-G' option depends on the configuration.
  
! `-mlocal-sdata'
! `-mno-local-sdata'
!      Extend (do not extend) the `-G' behavior to local data too, such
!      as to static variables in C.  `-mlocal-sdata' is the default for
!      all configurations.
  
!      If the linker complains that an application is using too much
!      small data, you might want to try rebuilding the less
!      performance-critical parts with `-mno-local-sdata'.  You might
!      also want to build large libraries with `-mno-local-sdata', so
!      that the libraries leave more room for the main program.
  
! `-mextern-sdata'
! `-mno-extern-sdata'
       Assume (do not assume) that externally-defined data is in a small
!      data section if the size of that data is within the `-G' limit.
!      `-mextern-sdata' is the default for all configurations.
  
!      If you compile a module MOD with `-mextern-sdata' `-G NUM'
!      `-mgpopt', and MOD references a variable VAR that is no bigger
!      than NUM bytes, you must make sure that VAR is placed in a small
!      data section.  If VAR is defined by another module, you must
!      either compile that module with a high-enough `-G' setting or
!      attach a `section' attribute to VAR's definition.  If VAR is
!      common, you must link the application with a high-enough `-G'
!      setting.
  
       The easiest way of satisfying these restrictions is to compile and
!      link every module with the same `-G' option.  However, you may
!      wish to build a library that supports several different small data
       limits.  You can do this by compiling the library with the highest
!      supported `-G' setting and additionally using `-mno-extern-sdata'
       to stop the library from making assumptions about
       externally-defined data.
  
! `-mgpopt'
! `-mno-gpopt'
!      Use (do not use) GP-relative accesses for symbols that are known
!      to be in a small data section; see `-G', `-mlocal-sdata' and
!      `-mextern-sdata'.  `-mgpopt' is the default for all configurations.
  
!      `-mno-gpopt' is useful for cases where the `$gp' register might
!      not hold the value of `_gp'.  For example, if the code is part of
!      a library that might be used in a boot monitor, programs that call
!      boot monitor routines pass an unknown value in `$gp'.  (In such
       situations, the boot monitor itself is usually compiled with
!      `-G0'.)
  
!      `-mno-gpopt' implies `-mno-local-sdata' and `-mno-extern-sdata'.
  
! `-membedded-data'
! `-mno-embedded-data'
!      Allocate variables to the read-only data section first if
!      possible, then next in the small data section if possible,
!      otherwise in data.  This gives slightly slower code than the
!      default, but reduces the amount of RAM required when executing,
!      and thus may be preferred for some embedded systems.
  
! `-muninit-const-in-rodata'
! `-mno-uninit-const-in-rodata'
!      Put uninitialized `const' variables in the read-only data section.
       This option is only meaningful in conjunction with
!      `-membedded-data'.
  
! `-mcode-readable=SETTING'
       Specify whether GCC may generate code that reads from executable
       sections.  There are three possible settings:
  
!     `-mcode-readable=yes'
            Instructions may freely access executable sections.  This is
            the default setting.
  
!     `-mcode-readable=pcrel'
            MIPS16 PC-relative load instructions can access executable
            sections, but other instructions must not do so.  This option
            is useful on 4KSc and 4KSd processors when the code TLBs have
--- 16832,17114 ----
  
            relocation truncated to fit: R_MIPS_GOT16 foobar
  
!      If this happens, you should recompile your code with '-mxgot'.
       This works with very large GOTs, although the code is also less
       efficient, since it takes three instructions to fetch the value of
       a global symbol.
  
       Note that some linkers can create multiple GOTs.  If you have such
!      a linker, you should only need to use '-mxgot' when a single object
       file accesses more than 64k's worth of GOT entries.  Very few do.
  
       These options have no effect unless GCC is generating position
       independent code.
  
! '-mgp32'
       Assume that general-purpose registers are 32 bits wide.
  
! '-mgp64'
       Assume that general-purpose registers are 64 bits wide.
  
! '-mfp32'
       Assume that floating-point registers are 32 bits wide.
  
! '-mfp64'
       Assume that floating-point registers are 64 bits wide.
  
! '-mfpxx'
       Do not assume the width of floating-point registers.
  
! '-mhard-float'
       Use floating-point coprocessor instructions.
  
! '-msoft-float'
       Do not use floating-point coprocessor instructions.  Implement
       floating-point calculations using library calls instead.
  
! '-mno-float'
!      Equivalent to '-msoft-float', but additionally asserts that the
       program being compiled does not perform any floating-point
       operations.  This option is presently supported only by some
       bare-metal MIPS configurations, where it may select a special set
       of libraries that lack all floating-point support (including, for
!      example, the floating-point 'printf' formats).  If code compiled
!      with '-mno-float' accidentally contains floating-point operations,
       it is likely to suffer a link-time or run-time failure.
  
! '-msingle-float'
       Assume that the floating-point coprocessor only supports
       single-precision operations.
  
! '-mdouble-float'
       Assume that the floating-point coprocessor supports
       double-precision operations.  This is the default.
  
! '-modd-spreg'
! '-mno-odd-spreg'
       Enable the use of odd-numbered single-precision floating-point
!      registers for the o32 ABI. This is the default for processors that
!      are known to support these registers.  When using the o32 FPXX ABI,
!      '-mno-odd-spreg' is set by default.
  
! '-mabs=2008'
! '-mabs=legacy'
       These options control the treatment of the special not-a-number
!      (NaN) IEEE 754 floating-point data with the 'abs.fmt' and 'neg.fmt'
!      machine instructions.
  
!      By default or when '-mabs=legacy' is used the legacy treatment is
       selected.  In this case these instructions are considered
       arithmetic and avoided where correct operation is required and the
!      input operand might be a NaN. A longer sequence of instructions
       that manipulate the sign bit of floating-point datum manually is
!      used instead unless the '-ffinite-math-only' option has also been
       specified.
  
!      The '-mabs=2008' option selects the IEEE 754-2008 treatment.  In
       this case these instructions are considered non-arithmetic and
!      therefore operating correctly in all cases, including in particular
!      where the input operand is a NaN. These instructions are therefore
!      always used for the respective operations.
  
! '-mnan=2008'
! '-mnan=legacy'
       These options control the encoding of the special not-a-number
       (NaN) IEEE 754 floating-point data.
  
!      The '-mnan=legacy' option selects the legacy encoding.  In this
       case quiet NaNs (qNaNs) are denoted by the first bit of their
!      trailing significand field being 0, whereas signalling NaNs (sNaNs)
!      are denoted by the first bit of their trailing significand field
!      being 1.
  
!      The '-mnan=2008' option selects the IEEE 754-2008 encoding.  In
       this case qNaNs are denoted by the first bit of their trailing
       significand field being 1, whereas sNaNs are denoted by the first
       bit of their trailing significand field being 0.
  
!      The default is '-mnan=legacy' unless GCC has been configured with
!      '--with-nan=2008'.
  
! '-mllsc'
! '-mno-llsc'
!      Use (do not use) 'll', 'sc', and 'sync' instructions to implement
       atomic memory built-in functions.  When neither option is
       specified, GCC uses the instructions if the target architecture
       supports them.
  
!      '-mllsc' is useful if the runtime environment can emulate the
!      instructions and '-mno-llsc' can be useful when compiling for
       nonstandard ISAs.  You can make either option the default by
!      configuring GCC with '--with-llsc' and '--without-llsc'
!      respectively.  '--with-llsc' is the default for some
       configurations; see the installation documentation for details.
  
! '-mdsp'
! '-mno-dsp'
       Use (do not use) revision 1 of the MIPS DSP ASE.  *Note MIPS DSP
       Built-in Functions::.  This option defines the preprocessor macro
!      '__mips_dsp'.  It also defines '__mips_dsp_rev' to 1.
  
! '-mdspr2'
! '-mno-dspr2'
       Use (do not use) revision 2 of the MIPS DSP ASE.  *Note MIPS DSP
       Built-in Functions::.  This option defines the preprocessor macros
!      '__mips_dsp' and '__mips_dspr2'.  It also defines '__mips_dsp_rev'
       to 2.
  
! '-msmartmips'
! '-mno-smartmips'
       Use (do not use) the MIPS SmartMIPS ASE.
  
! '-mpaired-single'
! '-mno-paired-single'
       Use (do not use) paired-single floating-point instructions.  *Note
       MIPS Paired-Single Support::.  This option requires hardware
       floating-point support to be enabled.
  
! '-mdmx'
! '-mno-mdmx'
       Use (do not use) MIPS Digital Media Extension instructions.  This
       option can only be used when generating 64-bit code and requires
       hardware floating-point support to be enabled.
  
! '-mips3d'
! '-mno-mips3d'
       Use (do not use) the MIPS-3D ASE.  *Note MIPS-3D Built-in
!      Functions::.  The option '-mips3d' implies '-mpaired-single'.
  
! '-mmicromips'
! '-mno-micromips'
       Generate (do not generate) microMIPS code.
  
       MicroMIPS code generation can also be controlled on a per-function
!      basis by means of 'micromips' and 'nomicromips' attributes.  *Note
       Function Attributes::, for more information.
  
! '-mmt'
! '-mno-mt'
       Use (do not use) MT Multithreading instructions.
  
! '-mmcu'
! '-mno-mcu'
       Use (do not use) the MIPS MCU ASE instructions.
  
! '-meva'
! '-mno-eva'
       Use (do not use) the MIPS Enhanced Virtual Addressing instructions.
  
! '-mvirt'
! '-mno-virt'
       Use (do not use) the MIPS Virtualization Application Specific
       instructions.
  
! '-mxpa'
! '-mno-xpa'
       Use (do not use) the MIPS eXtended Physical Address (XPA)
       instructions.
  
! '-mlong64'
!      Force 'long' types to be 64 bits wide.  See '-mlong32' for an
       explanation of the default and the way that the pointer size is
       determined.
  
! '-mlong32'
!      Force 'long', 'int', and pointer types to be 32 bits wide.
  
!      The default size of 'int's, 'long's and pointers depends on the
!      ABI.  All the supported ABIs use 32-bit 'int's.  The n64 ABI uses
!      64-bit 'long's, as does the 64-bit EABI; the others use 32-bit
!      'long's.  Pointers are the same size as 'long's, or the same size
       as integer registers, whichever is smaller.
  
! '-msym32'
! '-mno-sym32'
       Assume (do not assume) that all symbols have 32-bit values,
       regardless of the selected ABI.  This option is useful in
!      combination with '-mabi=64' and '-mno-abicalls' because it allows
       GCC to generate shorter and faster references to symbolic
       addresses.
  
! '-G NUM'
       Put definitions of externally-visible data in a small data section
       if that data is no bigger than NUM bytes.  GCC can then generate
!      more efficient accesses to the data; see '-mgpopt' for details.
  
!      The default '-G' option depends on the configuration.
  
! '-mlocal-sdata'
! '-mno-local-sdata'
!      Extend (do not extend) the '-G' behavior to local data too, such as
!      to static variables in C.  '-mlocal-sdata' is the default for all
!      configurations.
  
!      If the linker complains that an application is using too much small
!      data, you might want to try rebuilding the less
!      performance-critical parts with '-mno-local-sdata'.  You might also
!      want to build large libraries with '-mno-local-sdata', so that the
!      libraries leave more room for the main program.
  
! '-mextern-sdata'
! '-mno-extern-sdata'
       Assume (do not assume) that externally-defined data is in a small
!      data section if the size of that data is within the '-G' limit.
!      '-mextern-sdata' is the default for all configurations.
  
!      If you compile a module MOD with '-mextern-sdata' '-G NUM'
!      '-mgpopt', and MOD references a variable VAR that is no bigger than
!      NUM bytes, you must make sure that VAR is placed in a small data
!      section.  If VAR is defined by another module, you must either
!      compile that module with a high-enough '-G' setting or attach a
!      'section' attribute to VAR's definition.  If VAR is common, you
!      must link the application with a high-enough '-G' setting.
  
       The easiest way of satisfying these restrictions is to compile and
!      link every module with the same '-G' option.  However, you may wish
!      to build a library that supports several different small data
       limits.  You can do this by compiling the library with the highest
!      supported '-G' setting and additionally using '-mno-extern-sdata'
       to stop the library from making assumptions about
       externally-defined data.
  
! '-mgpopt'
! '-mno-gpopt'
!      Use (do not use) GP-relative accesses for symbols that are known to
!      be in a small data section; see '-G', '-mlocal-sdata' and
!      '-mextern-sdata'.  '-mgpopt' is the default for all configurations.
  
!      '-mno-gpopt' is useful for cases where the '$gp' register might not
!      hold the value of '_gp'.  For example, if the code is part of a
!      library that might be used in a boot monitor, programs that call
!      boot monitor routines pass an unknown value in '$gp'.  (In such
       situations, the boot monitor itself is usually compiled with
!      '-G0'.)
  
!      '-mno-gpopt' implies '-mno-local-sdata' and '-mno-extern-sdata'.
  
! '-membedded-data'
! '-mno-embedded-data'
!      Allocate variables to the read-only data section first if possible,
!      then next in the small data section if possible, otherwise in data.
!      This gives slightly slower code than the default, but reduces the
!      amount of RAM required when executing, and thus may be preferred
!      for some embedded systems.
  
! '-muninit-const-in-rodata'
! '-mno-uninit-const-in-rodata'
!      Put uninitialized 'const' variables in the read-only data section.
       This option is only meaningful in conjunction with
!      '-membedded-data'.
  
! '-mcode-readable=SETTING'
       Specify whether GCC may generate code that reads from executable
       sections.  There are three possible settings:
  
!      '-mcode-readable=yes'
            Instructions may freely access executable sections.  This is
            the default setting.
  
!      '-mcode-readable=pcrel'
            MIPS16 PC-relative load instructions can access executable
            sections, but other instructions must not do so.  This option
            is useful on 4KSc and 4KSd processors when the code TLBs have
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 17191,17355 ****
            interface and that, like the M4K, automatically redirect
            PC-relative loads to the instruction RAM.
  
!     `-mcode-readable=no'
!           Instructions must not access executable sections.  This
!           option can be useful on targets that are configured to have a
!           dual instruction/data SRAM interface but that (unlike the
!           M4K) do not automatically redirect PC-relative loads to the
            instruction RAM.
  
! `-msplit-addresses'
! `-mno-split-addresses'
!      Enable (disable) use of the `%hi()' and `%lo()' assembler
       relocation operators.  This option has been superseded by
!      `-mexplicit-relocs' but is retained for backwards compatibility.
  
! `-mexplicit-relocs'
! `-mno-explicit-relocs'
       Use (do not use) assembler relocation operators when dealing with
       symbolic addresses.  The alternative, selected by
!      `-mno-explicit-relocs', is to use assembler macros instead.
  
!      `-mexplicit-relocs' is the default if GCC was configured to use an
       assembler that supports relocation operators.
  
! `-mcheck-zero-division'
! `-mno-check-zero-division'
       Trap (do not trap) on integer division by zero.
  
!      The default is `-mcheck-zero-division'.
  
! `-mdivide-traps'
! `-mdivide-breaks'
       MIPS systems check for division by zero by generating either a
       conditional trap or a break instruction.  Using traps results in
       smaller code, but is only supported on MIPS II and later.  Also,
       some versions of the Linux kernel have a bug that prevents trap
!      from generating the proper signal (`SIGFPE').  Use
!      `-mdivide-traps' to allow conditional traps on architectures that
!      support them and `-mdivide-breaks' to force the use of breaks.
  
!      The default is usually `-mdivide-traps', but this can be
!      overridden at configure time using `--with-divide=breaks'.
!      Divide-by-zero checks can be completely disabled using
!      `-mno-check-zero-division'.
  
! `-mmemcpy'
! `-mno-memcpy'
!      Force (do not force) the use of `memcpy' for non-trivial block
!      moves.  The default is `-mno-memcpy', which allows GCC to inline
       most constant-sized copies.
  
! `-mlong-calls'
! `-mno-long-calls'
!      Disable (do not disable) use of the `jal' instruction.  Calling
!      functions using `jal' is more efficient but requires the caller
!      and callee to be in the same 256 megabyte segment.
  
       This option has no effect on abicalls code.  The default is
!      `-mno-long-calls'.
  
! `-mmad'
! `-mno-mad'
!      Enable (disable) use of the `mad', `madu' and `mul' instructions,
       as provided by the R4650 ISA.
  
! `-mimadd'
! `-mno-imadd'
!      Enable (disable) use of the `madd' and `msub' integer
!      instructions.  The default is `-mimadd' on architectures that
!      support `madd' and `msub' except for the 74k architecture where it
!      was found to generate slower code.
  
! `-mfused-madd'
! `-mno-fused-madd'
       Enable (disable) use of the floating-point multiply-accumulate
       instructions, when they are available.  The default is
!      `-mfused-madd'.
  
       On the R8000 CPU when multiply-accumulate instructions are used,
!      the intermediate product is calculated to infinite precision and
!      is not subject to the FCSR Flush to Zero bit.  This may be
!      undesirable in some circumstances.  On other processors the result
!      is numerically identical to the equivalent computation using
!      separate multiply, add, subtract and negate instructions.
  
! `-nocpp'
       Tell the MIPS assembler to not run its preprocessor over user
!      assembler files (with a `.s' suffix) when assembling them.
! 
! `-mfix-24k'
  
! `-mno-fix-24k'
       Work around the 24K E48 (lost data on stores during refill) errata.
       The workarounds are implemented by the assembler rather than by
       GCC.
  
! `-mfix-r4000'
! `-mno-fix-r4000'
       Work around certain R4000 CPU errata:
!         - A double-word or a variable shift may give an incorrect
!           result if executed immediately after starting an integer
!           division.
! 
!         - A double-word or a variable shift may give an incorrect
!           result if executed while an integer multiplication is in
!           progress.
! 
!         - An integer division may give an incorrect result if started
!           in a delay slot of a taken branch or a jump.
  
! `-mfix-r4400'
! `-mno-fix-r4400'
       Work around certain R4400 CPU errata:
!         - A double-word or a variable shift may give an incorrect
!           result if executed immediately after starting an integer
!           division.
  
! `-mfix-r10000'
! `-mno-fix-r10000'
       Work around certain R10000 errata:
!         - `ll'/`sc' sequences may not behave atomically on revisions
            prior to 3.0.  They may deadlock on revisions 2.6 and earlier.
  
       This option can only be used if the target architecture supports
!      branch-likely instructions.  `-mfix-r10000' is the default when
!      `-march=r10000' is used; `-mno-fix-r10000' is the default
       otherwise.
  
! `-mfix-rm7000'
! `-mno-fix-rm7000'
!      Work around the RM7000 `dmult'/`dmultu' errata.  The workarounds
       are implemented by the assembler rather than by GCC.
  
! `-mfix-vr4120'
! `-mno-fix-vr4120'
       Work around certain VR4120 errata:
!         - `dmultu' does not always produce the correct result.
! 
!         - `div' and `ddiv' do not always produce the correct result if
            one of the operands is negative.
       The workarounds for the division errata rely on special functions
!      in `libgcc.a'.  At present, these functions are only provided by
!      the `mips64vr*-elf' configurations.
  
       Other VR4120 errata require a NOP to be inserted between certain
       pairs of instructions.  These errata are handled by the assembler,
       not by GCC itself.
  
! `-mfix-vr4130'
!      Work around the VR4130 `mflo'/`mfhi' errata.  The workarounds are
       implemented by the assembler rather than by GCC, although GCC
!      avoids using `mflo' and `mfhi' if the VR4130 `macc', `macchi',
!      `dmacc' and `dmacchi' instructions are available instead.
  
! `-mfix-sb1'
! `-mno-fix-sb1'
       Work around certain SB-1 CPU core errata.  (This flag currently
       works around the SB-1 revision 2 "F1" and "F2" floating-point
       errata.)
  
! `-mr10k-cache-barrier=SETTING'
       Specify whether GCC should insert cache barriers to avoid the
       side-effects of speculation on R10K processors.
  
--- 17117,17273 ----
            interface and that, like the M4K, automatically redirect
            PC-relative loads to the instruction RAM.
  
!      '-mcode-readable=no'
!           Instructions must not access executable sections.  This option
!           can be useful on targets that are configured to have a dual
!           instruction/data SRAM interface but that (unlike the M4K) do
!           not automatically redirect PC-relative loads to the
            instruction RAM.
  
! '-msplit-addresses'
! '-mno-split-addresses'
!      Enable (disable) use of the '%hi()' and '%lo()' assembler
       relocation operators.  This option has been superseded by
!      '-mexplicit-relocs' but is retained for backwards compatibility.
  
! '-mexplicit-relocs'
! '-mno-explicit-relocs'
       Use (do not use) assembler relocation operators when dealing with
       symbolic addresses.  The alternative, selected by
!      '-mno-explicit-relocs', is to use assembler macros instead.
  
!      '-mexplicit-relocs' is the default if GCC was configured to use an
       assembler that supports relocation operators.
  
! '-mcheck-zero-division'
! '-mno-check-zero-division'
       Trap (do not trap) on integer division by zero.
  
!      The default is '-mcheck-zero-division'.
  
! '-mdivide-traps'
! '-mdivide-breaks'
       MIPS systems check for division by zero by generating either a
       conditional trap or a break instruction.  Using traps results in
       smaller code, but is only supported on MIPS II and later.  Also,
       some versions of the Linux kernel have a bug that prevents trap
!      from generating the proper signal ('SIGFPE').  Use '-mdivide-traps'
!      to allow conditional traps on architectures that support them and
!      '-mdivide-breaks' to force the use of breaks.
  
!      The default is usually '-mdivide-traps', but this can be overridden
!      at configure time using '--with-divide=breaks'.  Divide-by-zero
!      checks can be completely disabled using '-mno-check-zero-division'.
  
! '-mmemcpy'
! '-mno-memcpy'
!      Force (do not force) the use of 'memcpy' for non-trivial block
!      moves.  The default is '-mno-memcpy', which allows GCC to inline
       most constant-sized copies.
  
! '-mlong-calls'
! '-mno-long-calls'
!      Disable (do not disable) use of the 'jal' instruction.  Calling
!      functions using 'jal' is more efficient but requires the caller and
!      callee to be in the same 256 megabyte segment.
  
       This option has no effect on abicalls code.  The default is
!      '-mno-long-calls'.
  
! '-mmad'
! '-mno-mad'
!      Enable (disable) use of the 'mad', 'madu' and 'mul' instructions,
       as provided by the R4650 ISA.
  
! '-mimadd'
! '-mno-imadd'
!      Enable (disable) use of the 'madd' and 'msub' integer instructions.
!      The default is '-mimadd' on architectures that support 'madd' and
!      'msub' except for the 74k architecture where it was found to
!      generate slower code.
  
! '-mfused-madd'
! '-mno-fused-madd'
       Enable (disable) use of the floating-point multiply-accumulate
       instructions, when they are available.  The default is
!      '-mfused-madd'.
  
       On the R8000 CPU when multiply-accumulate instructions are used,
!      the intermediate product is calculated to infinite precision and is
!      not subject to the FCSR Flush to Zero bit.  This may be undesirable
!      in some circumstances.  On other processors the result is
!      numerically identical to the equivalent computation using separate
!      multiply, add, subtract and negate instructions.
  
! '-nocpp'
       Tell the MIPS assembler to not run its preprocessor over user
!      assembler files (with a '.s' suffix) when assembling them.
  
! '-mfix-24k'
! '-mno-fix-24k'
       Work around the 24K E48 (lost data on stores during refill) errata.
       The workarounds are implemented by the assembler rather than by
       GCC.
  
! '-mfix-r4000'
! '-mno-fix-r4000'
       Work around certain R4000 CPU errata:
!         - A double-word or a variable shift may give an incorrect result
!           if executed immediately after starting an integer division.
!         - A double-word or a variable shift may give an incorrect result
!           if executed while an integer multiplication is in progress.
!         - An integer division may give an incorrect result if started in
!           a delay slot of a taken branch or a jump.
  
! '-mfix-r4400'
! '-mno-fix-r4400'
       Work around certain R4400 CPU errata:
!         - A double-word or a variable shift may give an incorrect result
!           if executed immediately after starting an integer division.
  
! '-mfix-r10000'
! '-mno-fix-r10000'
       Work around certain R10000 errata:
!         - 'll'/'sc' sequences may not behave atomically on revisions
            prior to 3.0.  They may deadlock on revisions 2.6 and earlier.
  
       This option can only be used if the target architecture supports
!      branch-likely instructions.  '-mfix-r10000' is the default when
!      '-march=r10000' is used; '-mno-fix-r10000' is the default
       otherwise.
  
! '-mfix-rm7000'
! '-mno-fix-rm7000'
!      Work around the RM7000 'dmult'/'dmultu' errata.  The workarounds
       are implemented by the assembler rather than by GCC.
  
! '-mfix-vr4120'
! '-mno-fix-vr4120'
       Work around certain VR4120 errata:
!         - 'dmultu' does not always produce the correct result.
!         - 'div' and 'ddiv' do not always produce the correct result if
            one of the operands is negative.
       The workarounds for the division errata rely on special functions
!      in 'libgcc.a'.  At present, these functions are only provided by
!      the 'mips64vr*-elf' configurations.
  
       Other VR4120 errata require a NOP to be inserted between certain
       pairs of instructions.  These errata are handled by the assembler,
       not by GCC itself.
  
! '-mfix-vr4130'
!      Work around the VR4130 'mflo'/'mfhi' errata.  The workarounds are
       implemented by the assembler rather than by GCC, although GCC
!      avoids using 'mflo' and 'mfhi' if the VR4130 'macc', 'macchi',
!      'dmacc' and 'dmacchi' instructions are available instead.
  
! '-mfix-sb1'
! '-mno-fix-sb1'
       Work around certain SB-1 CPU core errata.  (This flag currently
       works around the SB-1 revision 2 "F1" and "F2" floating-point
       errata.)
  
! '-mr10k-cache-barrier=SETTING'
       Specify whether GCC should insert cache barriers to avoid the
       side-effects of speculation on R10K processors.
  
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 17361,17379 ****
  
       This problem only affects kernel stores and, depending on the
       system, kernel loads.  As an example, a speculatively-executed
!      store may load the target memory into cache and mark the cache
!      line as dirty, even if the store itself is later aborted.  If a
!      DMA operation writes to the same area of memory before the "dirty"
!      line is flushed, the cached data overwrites the DMA-ed data.  See
!      the R10K processor manual for a full description, including other
       potential problems.
  
!      One workaround is to insert cache barrier instructions before
!      every memory access that might be speculatively executed and that
!      might have side effects even if aborted.
!      `-mr10k-cache-barrier=SETTING' controls GCC's implementation of
!      this workaround.  It assumes that aborted accesses to any byte in
!      the following regions does not have side effects:
  
         1. the memory occupied by the current function's stack frame;
  
--- 17279,17297 ----
  
       This problem only affects kernel stores and, depending on the
       system, kernel loads.  As an example, a speculatively-executed
!      store may load the target memory into cache and mark the cache line
!      as dirty, even if the store itself is later aborted.  If a DMA
!      operation writes to the same area of memory before the "dirty" line
!      is flushed, the cached data overwrites the DMA-ed data.  See the
!      R10K processor manual for a full description, including other
       potential problems.
  
!      One workaround is to insert cache barrier instructions before every
!      memory access that might be speculatively executed and that might
!      have side effects even if aborted.  '-mr10k-cache-barrier=SETTING'
!      controls GCC's implementation of this workaround.  It assumes that
!      aborted accesses to any byte in the following regions does not have
!      side effects:
  
         1. the memory occupied by the current function's stack frame;
  
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 17389,17433 ****
  
            void foo (void);
  
!      then the implementation of `foo' must allow `j foo' and `jal foo'
       to be executed speculatively.  GCC honors this restriction for
       functions it compiles itself.  It expects non-GCC functions (such
       as hand-written assembly code) to do the same.
  
       The option has three forms:
  
!     `-mr10k-cache-barrier=load-store'
            Insert a cache barrier before a load or store that might be
            speculatively executed and that might have side effects even
            if aborted.
  
!     `-mr10k-cache-barrier=store'
            Insert a cache barrier before a store that might be
            speculatively executed and that might have side effects even
            if aborted.
  
!     `-mr10k-cache-barrier=none'
            Disable the insertion of cache barriers.  This is the default
            setting.
  
! `-mflush-func=FUNC'
! `-mno-flush-func'
       Specifies the function to call to flush the I and D caches, or to
       not call any such function.  If called, the function must take the
!      same arguments as the common `_flush_func', that is, the address
!      of the memory range for which the cache is being flushed, the size
!      of the memory range, and the number 3 (to flush both caches).  The
       default depends on the target GCC was configured for, but commonly
!      is either `_flush_func' or `__cpu_flush'.
  
! `mbranch-cost=NUM'
       Set the cost of branches to roughly NUM "simple" instructions.
       This cost is only a heuristic and is not guaranteed to produce
       consistent results across releases.  A zero cost redundantly
!      selects the default, which is based on the `-mtune' setting.
  
! `-mbranch-likely'
! `-mno-branch-likely'
       Enable or disable use of Branch Likely instructions, regardless of
       the default for the selected architecture.  By default, Branch
       Likely instructions may be generated if they are supported by the
--- 17307,17351 ----
  
            void foo (void);
  
!      then the implementation of 'foo' must allow 'j foo' and 'jal foo'
       to be executed speculatively.  GCC honors this restriction for
       functions it compiles itself.  It expects non-GCC functions (such
       as hand-written assembly code) to do the same.
  
       The option has three forms:
  
!      '-mr10k-cache-barrier=load-store'
            Insert a cache barrier before a load or store that might be
            speculatively executed and that might have side effects even
            if aborted.
  
!      '-mr10k-cache-barrier=store'
            Insert a cache barrier before a store that might be
            speculatively executed and that might have side effects even
            if aborted.
  
!      '-mr10k-cache-barrier=none'
            Disable the insertion of cache barriers.  This is the default
            setting.
  
! '-mflush-func=FUNC'
! '-mno-flush-func'
       Specifies the function to call to flush the I and D caches, or to
       not call any such function.  If called, the function must take the
!      same arguments as the common '_flush_func', that is, the address of
!      the memory range for which the cache is being flushed, the size of
!      the memory range, and the number 3 (to flush both caches).  The
       default depends on the target GCC was configured for, but commonly
!      is either '_flush_func' or '__cpu_flush'.
  
! 'mbranch-cost=NUM'
       Set the cost of branches to roughly NUM "simple" instructions.
       This cost is only a heuristic and is not guaranteed to produce
       consistent results across releases.  A zero cost redundantly
!      selects the default, which is based on the '-mtune' setting.
  
! '-mbranch-likely'
! '-mno-branch-likely'
       Enable or disable use of Branch Likely instructions, regardless of
       the default for the selected architecture.  By default, Branch
       Likely instructions may be generated if they are supported by the
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 17437,17465 ****
       default because the MIPS32 and MIPS64 architectures specifically
       deprecate their use.
  
! `-mcompact-branches=never'
! `-mcompact-branches=optimal'
! `-mcompact-branches=always'
       These options control which form of branches will be generated.
!      The default is `-mcompact-branches=optimal'.
  
!      The `-mcompact-branches=never' option ensures that compact branch
       instructions will never be generated.
  
!      The `-mcompact-branches=always' option ensures that a compact
       branch instruction will be generated if available.  If a compact
       branch instruction is not available, a delay slot form of the
       branch will be used instead.
  
       This option is supported from MIPS Release 6 onwards.
  
!      The `-mcompact-branches=optimal' option will cause a delay slot
       branch to be used if one is available in the current ISA and the
       delay slot is successfully filled.  If the delay slot is not
       filled, a compact branch will be chosen if one is available.
  
! `-mfp-exceptions'
! `-mno-fp-exceptions'
       Specifies whether FP exceptions are enabled.  This affects how FP
       instructions are scheduled for some processors.  The default is
       that FP exceptions are enabled.
--- 17355,17383 ----
       default because the MIPS32 and MIPS64 architectures specifically
       deprecate their use.
  
! '-mcompact-branches=never'
! '-mcompact-branches=optimal'
! '-mcompact-branches=always'
       These options control which form of branches will be generated.
!      The default is '-mcompact-branches=optimal'.
  
!      The '-mcompact-branches=never' option ensures that compact branch
       instructions will never be generated.
  
!      The '-mcompact-branches=always' option ensures that a compact
       branch instruction will be generated if available.  If a compact
       branch instruction is not available, a delay slot form of the
       branch will be used instead.
  
       This option is supported from MIPS Release 6 onwards.
  
!      The '-mcompact-branches=optimal' option will cause a delay slot
       branch to be used if one is available in the current ISA and the
       delay slot is successfully filled.  If the delay slot is not
       filled, a compact branch will be chosen if one is available.
  
! '-mfp-exceptions'
! '-mno-fp-exceptions'
       Specifies whether FP exceptions are enabled.  This affects how FP
       instructions are scheduled for some processors.  The default is
       that FP exceptions are enabled.
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 17468,17475 ****
       are emitting 64-bit code, then we can use both FP pipes.
       Otherwise, we can only use one FP pipe.
  
! `-mvr4130-align'
! `-mno-vr4130-align'
       The VR4130 pipeline is two-way superscalar, but can only issue two
       instructions together if the first one is 8-byte aligned.  When
       this option is enabled, GCC aligns pairs of instructions that it
--- 17386,17393 ----
       are emitting 64-bit code, then we can use both FP pipes.
       Otherwise, we can only use one FP pipe.
  
! '-mvr4130-align'
! '-mno-vr4130-align'
       The VR4130 pipeline is two-way superscalar, but can only issue two
       instructions together if the first one is 8-byte aligned.  When
       this option is enabled, GCC aligns pairs of instructions that it
*************** File: gcc.info,  Node: MIPS Options,  Ne
*** 17477,17537 ****
  
       This option only has an effect when optimizing for the VR4130.  It
       normally makes code faster, but at the expense of making it bigger.
!      It is enabled by default at optimization level `-O3'.
  
! `-msynci'
! `-mno-synci'
!      Enable (disable) generation of `synci' instructions on
!      architectures that support it.  The `synci' instructions (if
!      enabled) are generated when `__builtin___clear_cache' is compiled.
  
!      This option defaults to `-mno-synci', but the default can be
!      overridden by configuring GCC with `--with-synci'.
  
       When compiling code for single processor systems, it is generally
!      safe to use `synci'.  However, on many multi-core (SMP) systems, it
       does not invalidate the instruction caches on all cores and may
       lead to undefined behavior.
  
! `-mrelax-pic-calls'
! `-mno-relax-pic-calls'
       Try to turn PIC calls that are normally dispatched via register
!      `$25' into direct calls.  This is only possible if the linker can
       resolve the destination at link time and if the destination is
       within range for a direct call.
  
!      `-mrelax-pic-calls' is the default if GCC was configured to use an
!      assembler and a linker that support the `.reloc' assembly
!      directive and `-mexplicit-relocs' is in effect.  With
!      `-mno-explicit-relocs', this optimization can be performed by the
!      assembler and the linker alone without help from the compiler.
! 
! `-mmcount-ra-address'
! `-mno-mcount-ra-address'
!      Emit (do not emit) code that allows `_mcount' to modify the
!      calling function's return address.  When enabled, this option
!      extends the usual `_mcount' interface with a new RA-ADDRESS
!      parameter, which has type `intptr_t *' and is passed in register
!      `$12'.  `_mcount' can then modify the return address by doing both
!      of the following:
!         * Returning the new address in register `$31'.
  
!         * Storing the new address in `*RA-ADDRESS', if RA-ADDRESS is
            nonnull.
  
!      The default is `-mno-mcount-ra-address'.
  
! `-mframe-header-opt'
! `-mno-frame-header-opt'
!      Enable (disable) frame header optimization in the o32 ABI.  When
       using the o32 ABI, calling functions will allocate 16 bytes on the
       stack for the called function to write out register arguments.
!      When enabled, this optimization will suppress the allocation of
!      the frame header if it can be determined that it is unused.
  
       This optimization is off by default at all optimization levels.
  
- 
  
  File: gcc.info,  Node: MMIX Options,  Next: MN10300 Options,  Prev: MIPS Options,  Up: Submodel Options
  
--- 17395,17452 ----
  
       This option only has an effect when optimizing for the VR4130.  It
       normally makes code faster, but at the expense of making it bigger.
!      It is enabled by default at optimization level '-O3'.
  
! '-msynci'
! '-mno-synci'
!      Enable (disable) generation of 'synci' instructions on
!      architectures that support it.  The 'synci' instructions (if
!      enabled) are generated when '__builtin___clear_cache' is compiled.
  
!      This option defaults to '-mno-synci', but the default can be
!      overridden by configuring GCC with '--with-synci'.
  
       When compiling code for single processor systems, it is generally
!      safe to use 'synci'.  However, on many multi-core (SMP) systems, it
       does not invalidate the instruction caches on all cores and may
       lead to undefined behavior.
  
! '-mrelax-pic-calls'
! '-mno-relax-pic-calls'
       Try to turn PIC calls that are normally dispatched via register
!      '$25' into direct calls.  This is only possible if the linker can
       resolve the destination at link time and if the destination is
       within range for a direct call.
  
!      '-mrelax-pic-calls' is the default if GCC was configured to use an
!      assembler and a linker that support the '.reloc' assembly directive
!      and '-mexplicit-relocs' is in effect.  With '-mno-explicit-relocs',
!      this optimization can be performed by the assembler and the linker
!      alone without help from the compiler.
  
! '-mmcount-ra-address'
! '-mno-mcount-ra-address'
!      Emit (do not emit) code that allows '_mcount' to modify the calling
!      function's return address.  When enabled, this option extends the
!      usual '_mcount' interface with a new RA-ADDRESS parameter, which
!      has type 'intptr_t *' and is passed in register '$12'.  '_mcount'
!      can then modify the return address by doing both of the following:
!         * Returning the new address in register '$31'.
!         * Storing the new address in '*RA-ADDRESS', if RA-ADDRESS is
            nonnull.
  
!      The default is '-mno-mcount-ra-address'.
  
! '-mframe-header-opt'
! '-mno-frame-header-opt'
!      Enable (disable) frame header optimization in the o32 ABI. When
       using the o32 ABI, calling functions will allocate 16 bytes on the
       stack for the called function to write out register arguments.
!      When enabled, this optimization will suppress the allocation of the
!      frame header if it can be determined that it is unused.
  
       This optimization is off by default at all optimization levels.
  
  
  File: gcc.info,  Node: MMIX Options,  Next: MN10300 Options,  Prev: MIPS Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: MMIX Options,  Ne
*** 17540,17591 ****
  
  These options are defined for the MMIX:
  
! `-mlibfuncs'
! `-mno-libfuncs'
       Specify that intrinsic library functions are being compiled,
       passing all values in registers, no matter the size.
  
! `-mepsilon'
! `-mno-epsilon'
       Generate floating-point comparison instructions that compare with
!      respect to the `rE' epsilon register.
  
! `-mabi=mmixware'
! `-mabi=gnu'
       Generate code that passes function parameters and return values
!      that (in the called function) are seen as registers `$0' and up,
!      as opposed to the GNU ABI which uses global registers `$231' and
!      up.
  
! `-mzero-extend'
! `-mno-zero-extend'
       When reading data from memory in sizes shorter than 64 bits, use
       (do not use) zero-extending load instructions by default, rather
       than sign-extending ones.
  
! `-mknuthdiv'
! `-mno-knuthdiv'
       Make the result of a division yielding a remainder have the same
!      sign as the divisor.  With the default, `-mno-knuthdiv', the sign
       of the remainder follows the sign of the dividend.  Both methods
       are arithmetically valid, the latter being almost exclusively used.
  
! `-mtoplevel-symbols'
! `-mno-toplevel-symbols'
!      Prepend (do not prepend) a `:' to all global symbols, so the
!      assembly code can be used with the `PREFIX' assembly directive.
  
! `-melf'
       Generate an executable in the ELF format, rather than the default
!      `mmo' format used by the `mmix' simulator.
  
! `-mbranch-predict'
! `-mno-branch-predict'
       Use (do not use) the probable-branch instructions, when static
       branch prediction indicates a probable branch.
  
! `-mbase-addresses'
! `-mno-base-addresses'
       Generate (do not generate) code that uses _base addresses_.  Using
       a base address automatically generates a request (handled by the
       assembler and the linker) for a constant to be set up in a global
--- 17455,17505 ----
  
  These options are defined for the MMIX:
  
! '-mlibfuncs'
! '-mno-libfuncs'
       Specify that intrinsic library functions are being compiled,
       passing all values in registers, no matter the size.
  
! '-mepsilon'
! '-mno-epsilon'
       Generate floating-point comparison instructions that compare with
!      respect to the 'rE' epsilon register.
  
! '-mabi=mmixware'
! '-mabi=gnu'
       Generate code that passes function parameters and return values
!      that (in the called function) are seen as registers '$0' and up, as
!      opposed to the GNU ABI which uses global registers '$231' and up.
  
! '-mzero-extend'
! '-mno-zero-extend'
       When reading data from memory in sizes shorter than 64 bits, use
       (do not use) zero-extending load instructions by default, rather
       than sign-extending ones.
  
! '-mknuthdiv'
! '-mno-knuthdiv'
       Make the result of a division yielding a remainder have the same
!      sign as the divisor.  With the default, '-mno-knuthdiv', the sign
       of the remainder follows the sign of the dividend.  Both methods
       are arithmetically valid, the latter being almost exclusively used.
  
! '-mtoplevel-symbols'
! '-mno-toplevel-symbols'
!      Prepend (do not prepend) a ':' to all global symbols, so the
!      assembly code can be used with the 'PREFIX' assembly directive.
  
! '-melf'
       Generate an executable in the ELF format, rather than the default
!      'mmo' format used by the 'mmix' simulator.
  
! '-mbranch-predict'
! '-mno-branch-predict'
       Use (do not use) the probable-branch instructions, when static
       branch prediction indicates a probable branch.
  
! '-mbase-addresses'
! '-mno-base-addresses'
       Generate (do not generate) code that uses _base addresses_.  Using
       a base address automatically generates a request (handled by the
       assembler and the linker) for a constant to be set up in a global
*************** These options are defined for the MMIX:
*** 17593,17603 ****
       requests within the range 0 to 255 from the value held in the
       register.  The generally leads to short and fast code, but the
       number of different data items that can be addressed is limited.
!      This means that a program that uses lots of static data may
!      require `-mno-base-addresses'.
  
! `-msingle-exit'
! `-mno-single-exit'
       Force (do not force) generated code to have a single exit point in
       each function.
  
--- 17507,17517 ----
       requests within the range 0 to 255 from the value held in the
       register.  The generally leads to short and fast code, but the
       number of different data items that can be addressed is limited.
!      This means that a program that uses lots of static data may require
!      '-mno-base-addresses'.
  
! '-msingle-exit'
! '-mno-single-exit'
       Force (do not force) generated code to have a single exit point in
       each function.
  
*************** File: gcc.info,  Node: MN10300 Options,
*** 17607,17679 ****
  3.18.28 MN10300 Options
  -----------------------
  
! These `-m' options are defined for Matsushita MN10300 architectures:
  
! `-mmult-bug'
       Generate code to avoid bugs in the multiply instructions for the
       MN10300 processors.  This is the default.
  
! `-mno-mult-bug'
!      Do not generate code to avoid bugs in the multiply instructions
!      for the MN10300 processors.
  
! `-mam33'
       Generate code using features specific to the AM33 processor.
  
! `-mno-am33'
!      Do not generate code using features specific to the AM33
!      processor.  This is the default.
  
! `-mam33-2'
       Generate code using features specific to the AM33/2.0 processor.
  
! `-mam34'
       Generate code using features specific to the AM34 processor.
  
! `-mtune=CPU-TYPE'
       Use the timing characteristics of the indicated CPU type when
       scheduling instructions.  This does not change the targeted
!      processor type.  The CPU type must be one of `mn10300', `am33',
!      `am33-2' or `am34'.
  
! `-mreturn-pointer-on-d0'
       When generating a function that returns a pointer, return the
!      pointer in both `a0' and `d0'.  Otherwise, the pointer is returned
!      only in `a0', and attempts to call such functions without a
       prototype result in errors.  Note that this option is on by
!      default; use `-mno-return-pointer-on-d0' to disable it.
  
! `-mno-crt0'
       Do not link in the C run-time initialization object file.
  
! `-mrelax'
       Indicate to the linker that it should perform a relaxation
       optimization pass to shorten branches, calls and absolute memory
!      addresses.  This option only has an effect when used on the
!      command line for the final link step.
  
       This option makes symbolic debugging impossible.
  
! `-mliw'
!      Allow the compiler to generate _Long Instruction Word_
!      instructions if the target is the `AM33' or later.  This is the
!      default.  This option defines the preprocessor macro `__LIW__'.
  
! `-mnoliw'
       Do not allow the compiler to generate _Long Instruction Word_
       instructions.  This option defines the preprocessor macro
!      `__NO_LIW__'.
  
! `-msetlb'
       Allow the compiler to generate the _SETLB_ and _Lcc_ instructions
!      if the target is the `AM33' or later.  This is the default.  This
!      option defines the preprocessor macro `__SETLB__'.
  
! `-mnosetlb'
       Do not allow the compiler to generate _SETLB_ or _Lcc_
       instructions.  This option defines the preprocessor macro
!      `__NO_SETLB__'.
! 
  
  
  File: gcc.info,  Node: Moxie Options,  Next: MSP430 Options,  Prev: MN10300 Options,  Up: Submodel Options
--- 17521,17592 ----
  3.18.28 MN10300 Options
  -----------------------
  
! These '-m' options are defined for Matsushita MN10300 architectures:
  
! '-mmult-bug'
       Generate code to avoid bugs in the multiply instructions for the
       MN10300 processors.  This is the default.
  
! '-mno-mult-bug'
!      Do not generate code to avoid bugs in the multiply instructions for
!      the MN10300 processors.
  
! '-mam33'
       Generate code using features specific to the AM33 processor.
  
! '-mno-am33'
!      Do not generate code using features specific to the AM33 processor.
!      This is the default.
  
! '-mam33-2'
       Generate code using features specific to the AM33/2.0 processor.
  
! '-mam34'
       Generate code using features specific to the AM34 processor.
  
! '-mtune=CPU-TYPE'
       Use the timing characteristics of the indicated CPU type when
       scheduling instructions.  This does not change the targeted
!      processor type.  The CPU type must be one of 'mn10300', 'am33',
!      'am33-2' or 'am34'.
  
! '-mreturn-pointer-on-d0'
       When generating a function that returns a pointer, return the
!      pointer in both 'a0' and 'd0'.  Otherwise, the pointer is returned
!      only in 'a0', and attempts to call such functions without a
       prototype result in errors.  Note that this option is on by
!      default; use '-mno-return-pointer-on-d0' to disable it.
  
! '-mno-crt0'
       Do not link in the C run-time initialization object file.
  
! '-mrelax'
       Indicate to the linker that it should perform a relaxation
       optimization pass to shorten branches, calls and absolute memory
!      addresses.  This option only has an effect when used on the command
!      line for the final link step.
  
       This option makes symbolic debugging impossible.
  
! '-mliw'
!      Allow the compiler to generate _Long Instruction Word_ instructions
!      if the target is the 'AM33' or later.  This is the default.  This
!      option defines the preprocessor macro '__LIW__'.
  
! '-mnoliw'
       Do not allow the compiler to generate _Long Instruction Word_
       instructions.  This option defines the preprocessor macro
!      '__NO_LIW__'.
  
! '-msetlb'
       Allow the compiler to generate the _SETLB_ and _Lcc_ instructions
!      if the target is the 'AM33' or later.  This is the default.  This
!      option defines the preprocessor macro '__SETLB__'.
  
! '-mnosetlb'
       Do not allow the compiler to generate _SETLB_ or _Lcc_
       instructions.  This option defines the preprocessor macro
!      '__NO_SETLB__'.
  
  
  File: gcc.info,  Node: Moxie Options,  Next: MSP430 Options,  Prev: MN10300 Options,  Up: Submodel Options
*************** File: gcc.info,  Node: Moxie Options,  N
*** 17681,17701 ****
  3.18.29 Moxie Options
  ---------------------
  
! `-meb'
!      Generate big-endian code.  This is the default for `moxie-*-*'
       configurations.
  
! `-mel'
       Generate little-endian code.
  
! `-mmul.x'
       Generate mul.x and umul.x instructions.  This is the default for
!      `moxiebox-*-*' configurations.
  
! `-mno-crt0'
       Do not link in the C run-time initialization object file.
  
- 
  
  File: gcc.info,  Node: MSP430 Options,  Next: NDS32 Options,  Prev: Moxie Options,  Up: Submodel Options
  
--- 17594,17613 ----
  3.18.29 Moxie Options
  ---------------------
  
! '-meb'
!      Generate big-endian code.  This is the default for 'moxie-*-*'
       configurations.
  
! '-mel'
       Generate little-endian code.
  
! '-mmul.x'
       Generate mul.x and umul.x instructions.  This is the default for
!      'moxiebox-*-*' configurations.
  
! '-mno-crt0'
       Do not link in the C run-time initialization object file.
  
  
  File: gcc.info,  Node: MSP430 Options,  Next: NDS32 Options,  Prev: Moxie Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: MSP430 Options,
*** 17704,17778 ****
  
  These options are defined for the MSP430:
  
! `-masm-hex'
       Force assembly output to always use hex constants.  Normally such
       constants are signed decimals, but this option is available for
       testsuite and/or aesthetic purposes.
  
! `-mmcu='
       Select the MCU to target.  This is used to create a C preprocessor
       symbol based upon the MCU name, converted to upper case and pre-
!      and post-fixed with `__'.  This in turn is used by the `msp430.h'
       header file to select an MCU-specific supplementary header file.
  
       The option also sets the ISA to use.  If the MCU name is one that
       is known to only support the 430 ISA then that is selected,
!      otherwise the 430X ISA is selected.  A generic MCU name of
!      `msp430' can also be used to select the 430 ISA.  Similarly the
!      generic `msp430x' MCU name selects the 430X ISA.
  
       In addition an MCU-specific linker script is added to the linker
!      command line.  The script's name is the name of the MCU with `.ld'
!      appended.  Thus specifying `-mmcu=xxx' on the `gcc' command line
!      defines the C preprocessor symbol `__XXX__' and cause the linker
!      to search for a script called `xxx.ld'.
  
       This option is also passed on to the assembler.
  
! `-mwarn-mcu'
! `-mno-warn-mcu'
       This option enables or disables warnings about conflicts between
!      the MCU name specified by the `-mmcu' option and the ISA set by the
!      `-mcpu' option and/or the hardware multiply support set by the
!      `-mhwmult' option.  It also toggles warnings about unrecognized
!      MCU names.  This option is on by default.
  
! `-mcpu='
!      Specifies the ISA to use.  Accepted values are `msp430', `msp430x'
!      and `msp430xv2'.  This option is deprecated.  The `-mmcu=' option
       should be used to select the ISA.
  
! `-msim'
       Link to the simulator runtime libraries and linker script.
!      Overrides any scripts that would be selected by the `-mmcu='
       option.
  
! `-mlarge'
!      Use large-model addressing (20-bit pointers, 32-bit `size_t').
  
! `-msmall'
!      Use small-model addressing (16-bit pointers, 16-bit `size_t').
  
! `-mrelax'
       This option is passed to the assembler and linker, and allows the
       linker to perform certain optimizations that cannot be done until
       the final link.
  
! `mhwmult='
       Describes the type of hardware multiply supported by the target.
!      Accepted values are `none' for no hardware multiply, `16bit' for
!      the original 16-bit-only multiply supported by early MCUs.
!      `32bit' for the 16/32-bit multiply supported by later MCUs and
!      `f5series' for the 16/32-bit multiply supported by F5-series MCUs.
!      A value of `auto' can also be given.  This tells GCC to deduce the
!      hardware multiply support based upon the MCU name provided by the
!      `-mmcu' option.  If no `-mmcu' option is specified or if the MCU
!      name is not recognized then no hardware multiply support is
!      assumed.  `auto' is the default setting.
  
       Hardware multiplies are normally performed by calling a library
       routine.  This saves space in the generated code.  When compiling
!      at `-O3' or higher however the hardware multiplier is invoked
       inline.  This makes for bigger, but faster code.
  
       The hardware multiply routines disable interrupts whilst running
--- 17616,17690 ----
  
  These options are defined for the MSP430:
  
! '-masm-hex'
       Force assembly output to always use hex constants.  Normally such
       constants are signed decimals, but this option is available for
       testsuite and/or aesthetic purposes.
  
! '-mmcu='
       Select the MCU to target.  This is used to create a C preprocessor
       symbol based upon the MCU name, converted to upper case and pre-
!      and post-fixed with '__'.  This in turn is used by the 'msp430.h'
       header file to select an MCU-specific supplementary header file.
  
       The option also sets the ISA to use.  If the MCU name is one that
       is known to only support the 430 ISA then that is selected,
!      otherwise the 430X ISA is selected.  A generic MCU name of 'msp430'
!      can also be used to select the 430 ISA. Similarly the generic
!      'msp430x' MCU name selects the 430X ISA.
  
       In addition an MCU-specific linker script is added to the linker
!      command line.  The script's name is the name of the MCU with '.ld'
!      appended.  Thus specifying '-mmcu=xxx' on the 'gcc' command line
!      defines the C preprocessor symbol '__XXX__' and cause the linker to
!      search for a script called 'xxx.ld'.
  
       This option is also passed on to the assembler.
  
! '-mwarn-mcu'
! '-mno-warn-mcu'
       This option enables or disables warnings about conflicts between
!      the MCU name specified by the '-mmcu' option and the ISA set by the
!      '-mcpu' option and/or the hardware multiply support set by the
!      '-mhwmult' option.  It also toggles warnings about unrecognized MCU
!      names.  This option is on by default.
  
! '-mcpu='
!      Specifies the ISA to use.  Accepted values are 'msp430', 'msp430x'
!      and 'msp430xv2'.  This option is deprecated.  The '-mmcu=' option
       should be used to select the ISA.
  
! '-msim'
       Link to the simulator runtime libraries and linker script.
!      Overrides any scripts that would be selected by the '-mmcu='
       option.
  
! '-mlarge'
!      Use large-model addressing (20-bit pointers, 32-bit 'size_t').
  
! '-msmall'
!      Use small-model addressing (16-bit pointers, 16-bit 'size_t').
  
! '-mrelax'
       This option is passed to the assembler and linker, and allows the
       linker to perform certain optimizations that cannot be done until
       the final link.
  
! 'mhwmult='
       Describes the type of hardware multiply supported by the target.
!      Accepted values are 'none' for no hardware multiply, '16bit' for
!      the original 16-bit-only multiply supported by early MCUs.  '32bit'
!      for the 16/32-bit multiply supported by later MCUs and 'f5series'
!      for the 16/32-bit multiply supported by F5-series MCUs.  A value of
!      'auto' can also be given.  This tells GCC to deduce the hardware
!      multiply support based upon the MCU name provided by the '-mmcu'
!      option.  If no '-mmcu' option is specified or if the MCU name is
!      not recognized then no hardware multiply support is assumed.
!      'auto' is the default setting.
  
       Hardware multiplies are normally performed by calling a library
       routine.  This saves space in the generated code.  When compiling
!      at '-O3' or higher however the hardware multiplier is invoked
       inline.  This makes for bigger, but faster code.
  
       The hardware multiply routines disable interrupts whilst running
*************** These options are defined for the MSP430
*** 17780,17812 ****
       makes them safe to use inside interrupt handlers as well as in
       normal code.
  
! `-minrt'
       Enable the use of a minimum runtime environment - no static
       initializers or constructors.  This is intended for
       memory-constrained devices.  The compiler includes special symbols
       in some objects that tell the linker and runtime which code
       fragments are required.
  
! `-mcode-region='
! `-mdata-region='
       These options tell the compiler where to place functions and data
!      that do not have one of the `lower', `upper', `either' or
!      `section' attributes.  Possible values are `lower', `upper',
!      `either' or `any'.  The first three behave like the corresponding
!      attribute.  The fourth possible value - `any' - is the default.
!      It leaves placement entirely up to the linker script and how it
!      assigns the standard sections (`.text', `.data', etc) to the
!      memory regions.
  
! `-msilicon-errata='
       This option passes on a request to assembler to enable the fixes
       for the named silicon errata.
  
! `-msilicon-errata-warn='
       This option passes on a request to the assembler to enable warning
       messages when a silicon errata might need to be applied.
  
- 
  
  File: gcc.info,  Node: NDS32 Options,  Next: Nios II Options,  Prev: MSP430 Options,  Up: Submodel Options
  
--- 17692,17722 ----
       makes them safe to use inside interrupt handlers as well as in
       normal code.
  
! '-minrt'
       Enable the use of a minimum runtime environment - no static
       initializers or constructors.  This is intended for
       memory-constrained devices.  The compiler includes special symbols
       in some objects that tell the linker and runtime which code
       fragments are required.
  
! '-mcode-region='
! '-mdata-region='
       These options tell the compiler where to place functions and data
!      that do not have one of the 'lower', 'upper', 'either' or 'section'
!      attributes.  Possible values are 'lower', 'upper', 'either' or
!      'any'.  The first three behave like the corresponding attribute.
!      The fourth possible value - 'any' - is the default.  It leaves
!      placement entirely up to the linker script and how it assigns the
!      standard sections ('.text', '.data', etc) to the memory regions.
  
! '-msilicon-errata='
       This option passes on a request to assembler to enable the fixes
       for the named silicon errata.
  
! '-msilicon-errata-warn='
       This option passes on a request to the assembler to enable warning
       messages when a silicon errata might need to be applied.
  
  
  File: gcc.info,  Node: NDS32 Options,  Next: Nios II Options,  Prev: MSP430 Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: NDS32 Options,  N
*** 17815,17889 ****
  
  These options are defined for NDS32 implementations:
  
! `-mbig-endian'
       Generate code in big-endian mode.
  
! `-mlittle-endian'
       Generate code in little-endian mode.
  
! `-mreduced-regs'
       Use reduced-set registers for register allocation.
  
! `-mfull-regs'
       Use full-set registers for register allocation.
  
! `-mcmov'
       Generate conditional move instructions.
  
! `-mno-cmov'
       Do not generate conditional move instructions.
  
! `-mperf-ext'
       Generate performance extension instructions.
  
! `-mno-perf-ext'
       Do not generate performance extension instructions.
  
! `-mv3push'
       Generate v3 push25/pop25 instructions.
  
! `-mno-v3push'
       Do not generate v3 push25/pop25 instructions.
  
! `-m16-bit'
       Generate 16-bit instructions.
  
! `-mno-16-bit'
       Do not generate 16-bit instructions.
  
! `-misr-vector-size=NUM'
       Specify the size of each interrupt vector, which must be 4 or 16.
  
! `-mcache-block-size=NUM'
       Specify the size of each cache block, which must be a power of 2
       between 4 and 512.
  
! `-march=ARCH'
       Specify the name of the target architecture.
  
! `-mcmodel=CODE-MODEL'
       Set the code model to one of
!     `small'
            All the data and read-only data segments must be within 512KB
            addressing space.  The text segment must be within 16MB
            addressing space.
! 
!     `medium'
!           The data segment must be within 512KB while the read-only
!           data segment can be within 4GB addressing space.  The text
!           segment should be still within 16MB addressing space.
! 
!     `large'
            All the text and data segments can be within 4GB addressing
            space.
  
! `-mctor-dtor'
       Enable constructor/destructor feature.
  
! `-mrelax'
       Guide linker to relax instructions.
  
- 
  
  File: gcc.info,  Node: Nios II Options,  Next: Nvidia PTX Options,  Prev: NDS32 Options,  Up: Submodel Options
  
--- 17725,17796 ----
  
  These options are defined for NDS32 implementations:
  
! '-mbig-endian'
       Generate code in big-endian mode.
  
! '-mlittle-endian'
       Generate code in little-endian mode.
  
! '-mreduced-regs'
       Use reduced-set registers for register allocation.
  
! '-mfull-regs'
       Use full-set registers for register allocation.
  
! '-mcmov'
       Generate conditional move instructions.
  
! '-mno-cmov'
       Do not generate conditional move instructions.
  
! '-mperf-ext'
       Generate performance extension instructions.
  
! '-mno-perf-ext'
       Do not generate performance extension instructions.
  
! '-mv3push'
       Generate v3 push25/pop25 instructions.
  
! '-mno-v3push'
       Do not generate v3 push25/pop25 instructions.
  
! '-m16-bit'
       Generate 16-bit instructions.
  
! '-mno-16-bit'
       Do not generate 16-bit instructions.
  
! '-misr-vector-size=NUM'
       Specify the size of each interrupt vector, which must be 4 or 16.
  
! '-mcache-block-size=NUM'
       Specify the size of each cache block, which must be a power of 2
       between 4 and 512.
  
! '-march=ARCH'
       Specify the name of the target architecture.
  
! '-mcmodel=CODE-MODEL'
       Set the code model to one of
!      'small'
            All the data and read-only data segments must be within 512KB
            addressing space.  The text segment must be within 16MB
            addressing space.
!      'medium'
!           The data segment must be within 512KB while the read-only data
!           segment can be within 4GB addressing space.  The text segment
!           should be still within 16MB addressing space.
!      'large'
            All the text and data segments can be within 4GB addressing
            space.
  
! '-mctor-dtor'
       Enable constructor/destructor feature.
  
! '-mrelax'
       Guide linker to relax instructions.
  
  
  File: gcc.info,  Node: Nios II Options,  Next: Nvidia PTX Options,  Prev: NDS32 Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: Nios II Options,
*** 17892,17934 ****
  
  These are the options defined for the Altera Nios II processor.
  
! `-G NUM'
       Put global and static objects less than or equal to NUM bytes into
       the small data or BSS sections instead of the normal data or BSS
       sections.  The default value of NUM is 8.
  
! `-mgpopt=OPTION'
! 
! `-mgpopt'
! `-mno-gpopt'
       Generate (do not generate) GP-relative accesses.  The following
       OPTION names are recognized:
  
!     `none'
            Do not generate GP-relative accesses.
  
!     `local'
            Generate GP-relative accesses for small data objects that are
!           not external, weak, or uninitialized common symbols.  Also
!           use GP-relative addressing for objects that have been
!           explicitly placed in a small data section via a `section'
!           attribute.
  
!     `global'
!           As for `local', but also generate GP-relative accesses for
!           small data objects that are external, weak, or common.  If
!           you use this option, you must ensure that all parts of your
!           program (including libraries) are compiled with the same `-G'
            setting.
  
!     `data'
            Generate GP-relative accesses for all data objects in the
            program.  If you use this option, the entire data and BSS
            segments of your program must fit in 64K of memory and you
            must use an appropriate linker script to allocate them within
            the addressable range of the global pointer.
  
!     `all'
            Generate GP-relative addresses for function pointers as well
            as data pointers.  If you use this option, the entire text,
            data, and BSS segments of your program must fit in 64K of
--- 17799,17839 ----
  
  These are the options defined for the Altera Nios II processor.
  
! '-G NUM'
       Put global and static objects less than or equal to NUM bytes into
       the small data or BSS sections instead of the normal data or BSS
       sections.  The default value of NUM is 8.
  
! '-mgpopt=OPTION'
! '-mgpopt'
! '-mno-gpopt'
       Generate (do not generate) GP-relative accesses.  The following
       OPTION names are recognized:
  
!      'none'
            Do not generate GP-relative accesses.
  
!      'local'
            Generate GP-relative accesses for small data objects that are
!           not external, weak, or uninitialized common symbols.  Also use
!           GP-relative addressing for objects that have been explicitly
!           placed in a small data section via a 'section' attribute.
  
!      'global'
!           As for 'local', but also generate GP-relative accesses for
!           small data objects that are external, weak, or common.  If you
!           use this option, you must ensure that all parts of your
!           program (including libraries) are compiled with the same '-G'
            setting.
  
!      'data'
            Generate GP-relative accesses for all data objects in the
            program.  If you use this option, the entire data and BSS
            segments of your program must fit in 64K of memory and you
            must use an appropriate linker script to allocate them within
            the addressable range of the global pointer.
  
!      'all'
            Generate GP-relative addresses for function pointers as well
            as data pointers.  If you use this option, the entire text,
            data, and BSS segments of your program must fit in 64K of
*************** These are the options defined for the Al
*** 17936,18010 ****
            allocate them within the addressable range of the global
            pointer.
  
  
!      `-mgpopt' is equivalent to `-mgpopt=local', and `-mno-gpopt' is
!      equivalent to `-mgpopt=none'.
! 
!      The default is `-mgpopt' except when `-fpic' or `-fPIC' is
       specified to generate position-independent code.  Note that the
       Nios II ABI does not permit GP-relative accesses from shared
       libraries.
  
!      You may need to specify `-mno-gpopt' explicitly when building
       programs that include large amounts of small data, including large
       GOT data sections.  In this case, the 16-bit offset for GP-relative
       addressing may not be large enough to allow access to the entire
       small data section.
  
! `-mel'
! `-meb'
       Generate little-endian (default) or big-endian (experimental) code,
       respectively.
  
! `-march=ARCH'
       This specifies the name of the target Nios II architecture.  GCC
       uses this name to determine what kind of instructions it can emit
!      when generating assembly code.  Permissible names are: `r1', `r2'.
  
!      The preprocessor macro `__nios2_arch__' is available to programs,
       with value 1 or 2, indicating the targeted ISA level.
  
! `-mbypass-cache'
! `-mno-bypass-cache'
       Force all load and store instructions to always bypass cache by
!      using I/O variants of the instructions. The default is not to
       bypass the cache.
  
! `-mno-cache-volatile'
! `-mcache-volatile'
       Volatile memory access bypass the cache using the I/O variants of
!      the load and store instructions. The default is not to bypass the
       cache.
  
! `-mno-fast-sw-div'
! `-mfast-sw-div'
!      Do not use table-based fast divide for small numbers. The default
!      is to use the fast divide at `-O3' and above.
  
! `-mno-hw-mul'
! `-mhw-mul'
! `-mno-hw-mulx'
! `-mhw-mulx'
! `-mno-hw-div'
! `-mhw-div'
!      Enable or disable emitting `mul', `mulx' and `div' family of
!      instructions by the compiler. The default is to emit `mul' and not
!      emit `div' and `mulx'.
  
! `-mbmx'
! `-mno-bmx'
! `-mcdx'
! `-mno-cdx'
       Enable or disable generation of Nios II R2 BMX (bit manipulation)
       and CDX (code density) instructions.  Enabling these instructions
!      also requires `-march=r2'.  Since these instructions are optional
       extensions to the R2 architecture, the default is not to emit them.
  
! `-mcustom-INSN=N'
! `-mno-custom-INSN'
!      Each `-mcustom-INSN=N' option enables use of a custom instruction
       with encoding N when generating code that uses INSN.  For example,
!      `-mcustom-fadds=253' generates custom instruction 253 for
       single-precision floating-point add operations instead of the
       default behavior of using a library call.
  
--- 17841,17914 ----
            allocate them within the addressable range of the global
            pointer.
  
+      '-mgpopt' is equivalent to '-mgpopt=local', and '-mno-gpopt' is
+      equivalent to '-mgpopt=none'.
  
!      The default is '-mgpopt' except when '-fpic' or '-fPIC' is
       specified to generate position-independent code.  Note that the
       Nios II ABI does not permit GP-relative accesses from shared
       libraries.
  
!      You may need to specify '-mno-gpopt' explicitly when building
       programs that include large amounts of small data, including large
       GOT data sections.  In this case, the 16-bit offset for GP-relative
       addressing may not be large enough to allow access to the entire
       small data section.
  
! '-mel'
! '-meb'
       Generate little-endian (default) or big-endian (experimental) code,
       respectively.
  
! '-march=ARCH'
       This specifies the name of the target Nios II architecture.  GCC
       uses this name to determine what kind of instructions it can emit
!      when generating assembly code.  Permissible names are: 'r1', 'r2'.
  
!      The preprocessor macro '__nios2_arch__' is available to programs,
       with value 1 or 2, indicating the targeted ISA level.
  
! '-mbypass-cache'
! '-mno-bypass-cache'
       Force all load and store instructions to always bypass cache by
!      using I/O variants of the instructions.  The default is not to
       bypass the cache.
  
! '-mno-cache-volatile'
! '-mcache-volatile'
       Volatile memory access bypass the cache using the I/O variants of
!      the load and store instructions.  The default is not to bypass the
       cache.
  
! '-mno-fast-sw-div'
! '-mfast-sw-div'
!      Do not use table-based fast divide for small numbers.  The default
!      is to use the fast divide at '-O3' and above.
  
! '-mno-hw-mul'
! '-mhw-mul'
! '-mno-hw-mulx'
! '-mhw-mulx'
! '-mno-hw-div'
! '-mhw-div'
!      Enable or disable emitting 'mul', 'mulx' and 'div' family of
!      instructions by the compiler.  The default is to emit 'mul' and not
!      emit 'div' and 'mulx'.
  
! '-mbmx'
! '-mno-bmx'
! '-mcdx'
! '-mno-cdx'
       Enable or disable generation of Nios II R2 BMX (bit manipulation)
       and CDX (code density) instructions.  Enabling these instructions
!      also requires '-march=r2'.  Since these instructions are optional
       extensions to the R2 architecture, the default is not to emit them.
  
! '-mcustom-INSN=N'
! '-mno-custom-INSN'
!      Each '-mcustom-INSN=N' option enables use of a custom instruction
       with encoding N when generating code that uses INSN.  For example,
!      '-mcustom-fadds=253' generates custom instruction 253 for
       single-precision floating-point add operations instead of the
       default behavior of using a library call.
  
*************** These are the options defined for the Al
*** 18015,18146 ****
       Builtins::).
  
       Single-precision floating point:
!     `fadds', `fsubs', `fdivs', `fmuls'
            Binary arithmetic operations.
  
!     `fnegs'
            Unary negation.
  
!     `fabss'
            Unary absolute value.
  
!     `fcmpeqs', `fcmpges', `fcmpgts', `fcmples', `fcmplts', `fcmpnes'
            Comparison operations.
  
!     `fmins', `fmaxs'
            Floating-point minimum and maximum.  These instructions are
!           only generated if `-ffinite-math-only' is specified.
  
!     `fsqrts'
            Unary square root operation.
  
!     `fcoss', `fsins', `ftans', `fatans', `fexps', `flogs'
!           Floating-point trigonometric and exponential functions.
!           These instructions are only generated if
!           `-funsafe-math-optimizations' is also specified.
! 
  
       Double-precision floating point:
!     `faddd', `fsubd', `fdivd', `fmuld'
            Binary arithmetic operations.
  
!     `fnegd'
            Unary negation.
  
!     `fabsd'
            Unary absolute value.
  
!     `fcmpeqd', `fcmpged', `fcmpgtd', `fcmpled', `fcmpltd', `fcmpned'
            Comparison operations.
  
!     `fmind', `fmaxd'
            Double-precision minimum and maximum.  These instructions are
!           only generated if `-ffinite-math-only' is specified.
  
!     `fsqrtd'
            Unary square root operation.
  
!     `fcosd', `fsind', `ftand', `fatand', `fexpd', `flogd'
            Double-precision trigonometric and exponential functions.
            These instructions are only generated if
!           `-funsafe-math-optimizations' is also specified.
! 
  
       Conversions:
!     `fextsd'
            Conversion from single precision to double precision.
  
!     `ftruncds'
            Conversion from double precision to single precision.
  
!     `fixsi', `fixsu', `fixdi', `fixdu'
            Conversion from floating point to signed or unsigned integer
            types, with truncation towards zero.
  
!     `round'
            Conversion from single-precision floating point to signed
            integer, rounding to the nearest integer and ties away from
!           zero.  This corresponds to the `__builtin_lroundf' function
!           when `-fno-math-errno' is used.
  
!     `floatis', `floatus', `floatid', `floatud'
            Conversion from signed or unsigned integer types to
            floating-point types.
  
- 
       In addition, all of the following transfer instructions for
       internal registers X and Y must be provided to use any of the
       double-precision floating-point instructions.  Custom instructions
       taking two double-precision source operands expect the first
!      operand in the 64-bit register X.  The other operand (or only
       operand of a unary operation) is given to the custom arithmetic
!      instruction with the least significant half in source register
!      SRC1 and the most significant half in SRC2.  A custom instruction
!      that returns a double-precision result returns the most
!      significant 32 bits in the destination register and the other half
!      in 32-bit register Y.  GCC automatically generates the necessary
!      code sequences to write register X and/or read register Y when
       double-precision floating-point instructions are used.
  
!     `fwrx'
            Write SRC1 into the least significant half of X and SRC2 into
            the most significant half of X.
  
!     `fwry'
            Write SRC1 into Y.
  
!     `frdxhi', `frdxlo'
            Read the most or least (respectively) significant half of X
            and store it in DEST.
  
!     `frdy'
            Read the value of Y and store it into DEST.
  
       Note that you can gain more local control over generation of Nios
!      II custom instructions by using the `target("custom-INSN=N")' and
!      `target("no-custom-INSN")' function attributes (*note Function
       Attributes::) or pragmas (*note Function Specific Option
       Pragmas::).
  
! `-mcustom-fpu-cfg=NAME'
       This option enables a predefined, named set of custom instruction
!      encodings (see `-mcustom-INSN' above).  Currently, the following
       sets are defined:
  
!      `-mcustom-fpu-cfg=60-1' is equivalent to:
            -mcustom-fmuls=252
            -mcustom-fadds=253
            -mcustom-fsubs=254
            -fsingle-precision-constant
  
!      `-mcustom-fpu-cfg=60-2' is equivalent to:
            -mcustom-fmuls=252
            -mcustom-fadds=253
            -mcustom-fsubs=254
            -mcustom-fdivs=255
            -fsingle-precision-constant
  
!      `-mcustom-fpu-cfg=72-3' is equivalent to:
            -mcustom-floatus=243
            -mcustom-fixsi=244
            -mcustom-floatis=245
--- 17919,18050 ----
       Builtins::).
  
       Single-precision floating point:
! 
!      'fadds', 'fsubs', 'fdivs', 'fmuls'
            Binary arithmetic operations.
  
!      'fnegs'
            Unary negation.
  
!      'fabss'
            Unary absolute value.
  
!      'fcmpeqs', 'fcmpges', 'fcmpgts', 'fcmples', 'fcmplts', 'fcmpnes'
            Comparison operations.
  
!      'fmins', 'fmaxs'
            Floating-point minimum and maximum.  These instructions are
!           only generated if '-ffinite-math-only' is specified.
  
!      'fsqrts'
            Unary square root operation.
  
!      'fcoss', 'fsins', 'ftans', 'fatans', 'fexps', 'flogs'
!           Floating-point trigonometric and exponential functions.  These
!           instructions are only generated if
!           '-funsafe-math-optimizations' is also specified.
  
       Double-precision floating point:
! 
!      'faddd', 'fsubd', 'fdivd', 'fmuld'
            Binary arithmetic operations.
  
!      'fnegd'
            Unary negation.
  
!      'fabsd'
            Unary absolute value.
  
!      'fcmpeqd', 'fcmpged', 'fcmpgtd', 'fcmpled', 'fcmpltd', 'fcmpned'
            Comparison operations.
  
!      'fmind', 'fmaxd'
            Double-precision minimum and maximum.  These instructions are
!           only generated if '-ffinite-math-only' is specified.
  
!      'fsqrtd'
            Unary square root operation.
  
!      'fcosd', 'fsind', 'ftand', 'fatand', 'fexpd', 'flogd'
            Double-precision trigonometric and exponential functions.
            These instructions are only generated if
!           '-funsafe-math-optimizations' is also specified.
  
       Conversions:
!      'fextsd'
            Conversion from single precision to double precision.
  
!      'ftruncds'
            Conversion from double precision to single precision.
  
!      'fixsi', 'fixsu', 'fixdi', 'fixdu'
            Conversion from floating point to signed or unsigned integer
            types, with truncation towards zero.
  
!      'round'
            Conversion from single-precision floating point to signed
            integer, rounding to the nearest integer and ties away from
!           zero.  This corresponds to the '__builtin_lroundf' function
!           when '-fno-math-errno' is used.
  
!      'floatis', 'floatus', 'floatid', 'floatud'
            Conversion from signed or unsigned integer types to
            floating-point types.
  
       In addition, all of the following transfer instructions for
       internal registers X and Y must be provided to use any of the
       double-precision floating-point instructions.  Custom instructions
       taking two double-precision source operands expect the first
!      operand in the 64-bit register X. The other operand (or only
       operand of a unary operation) is given to the custom arithmetic
!      instruction with the least significant half in source register SRC1
!      and the most significant half in SRC2.  A custom instruction that
!      returns a double-precision result returns the most significant 32
!      bits in the destination register and the other half in 32-bit
!      register Y. GCC automatically generates the necessary code
!      sequences to write register X and/or read register Y when
       double-precision floating-point instructions are used.
  
!      'fwrx'
            Write SRC1 into the least significant half of X and SRC2 into
            the most significant half of X.
  
!      'fwry'
            Write SRC1 into Y.
  
!      'frdxhi', 'frdxlo'
            Read the most or least (respectively) significant half of X
            and store it in DEST.
  
!      'frdy'
            Read the value of Y and store it into DEST.
  
       Note that you can gain more local control over generation of Nios
!      II custom instructions by using the 'target("custom-INSN=N")' and
!      'target("no-custom-INSN")' function attributes (*note Function
       Attributes::) or pragmas (*note Function Specific Option
       Pragmas::).
  
! '-mcustom-fpu-cfg=NAME'
! 
       This option enables a predefined, named set of custom instruction
!      encodings (see '-mcustom-INSN' above).  Currently, the following
       sets are defined:
  
!      '-mcustom-fpu-cfg=60-1' is equivalent to:
            -mcustom-fmuls=252
            -mcustom-fadds=253
            -mcustom-fsubs=254
            -fsingle-precision-constant
  
!      '-mcustom-fpu-cfg=60-2' is equivalent to:
            -mcustom-fmuls=252
            -mcustom-fadds=253
            -mcustom-fsubs=254
            -mcustom-fdivs=255
            -fsingle-precision-constant
  
!      '-mcustom-fpu-cfg=72-3' is equivalent to:
            -mcustom-floatus=243
            -mcustom-fixsi=244
            -mcustom-floatis=245
*************** These are the options defined for the Al
*** 18154,18194 ****
            -mcustom-fdivs=255
            -fsingle-precision-constant
  
!      Custom instruction assignments given by individual
!      `-mcustom-INSN=' options override those given by
!      `-mcustom-fpu-cfg=', regardless of the order of the options on the
!      command line.
  
       Note that you can gain more local control over selection of a FPU
!      configuration by using the `target("custom-fpu-cfg=NAME")'
!      function attribute (*note Function Attributes::) or pragma (*note
!      Function Specific Option Pragmas::).
! 
  
!  These additional `-m' options are available for the Altera Nios II ELF
  (bare-metal) target:
  
! `-mhal'
!      Link with HAL BSP.  This suppresses linking with the GCC-provided
!      C runtime startup and termination code, and is typically used in
!      conjunction with `-msys-crt0=' to specify the location of the
       alternate startup code provided by the HAL BSP.
  
! `-msmallc'
!      Link with a limited version of the C library, `-lsmallc', rather
       than Newlib.
  
! `-msys-crt0=STARTFILE'
       STARTFILE is the file name of the startfile (crt0) to use when
!      linking.  This option is only useful in conjunction with `-mhal'.
  
! `-msys-lib=SYSTEMLIB'
       SYSTEMLIB is the library name of the library that provides
!      low-level system calls required by the C library, e.g. `read' and
!      `write'.  This option is typically used to link with a library
       provided by a HAL BSP.
  
- 
  
  File: gcc.info,  Node: Nvidia PTX Options,  Next: PDP-11 Options,  Prev: Nios II Options,  Up: Submodel Options
  
--- 18058,18095 ----
            -mcustom-fdivs=255
            -fsingle-precision-constant
  
!      Custom instruction assignments given by individual '-mcustom-INSN='
!      options override those given by '-mcustom-fpu-cfg=', regardless of
!      the order of the options on the command line.
  
       Note that you can gain more local control over selection of a FPU
!      configuration by using the 'target("custom-fpu-cfg=NAME")' function
!      attribute (*note Function Attributes::) or pragma (*note Function
!      Specific Option Pragmas::).
  
!  These additional '-m' options are available for the Altera Nios II ELF
  (bare-metal) target:
  
! '-mhal'
!      Link with HAL BSP. This suppresses linking with the GCC-provided C
!      runtime startup and termination code, and is typically used in
!      conjunction with '-msys-crt0=' to specify the location of the
       alternate startup code provided by the HAL BSP.
  
! '-msmallc'
!      Link with a limited version of the C library, '-lsmallc', rather
       than Newlib.
  
! '-msys-crt0=STARTFILE'
       STARTFILE is the file name of the startfile (crt0) to use when
!      linking.  This option is only useful in conjunction with '-mhal'.
  
! '-msys-lib=SYSTEMLIB'
       SYSTEMLIB is the library name of the library that provides
!      low-level system calls required by the C library, e.g.  'read' and
!      'write'.  This option is typically used to link with a library
       provided by a HAL BSP.
  
  
  File: gcc.info,  Node: Nvidia PTX Options,  Next: PDP-11 Options,  Prev: Nios II Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: Nvidia PTX Option
*** 18197,18215 ****
  
  These options are defined for Nvidia PTX:
  
! `-m32'
! `-m64'
       Generate code for 32-bit or 64-bit ABI.
  
! `-mmainkernel'
       Link in code for a __main kernel.  This is for stand-alone instead
       of offloading execution.
  
! `-moptimize'
       Apply partitioned execution optimizations.  This is the default
       when any level of optimization is selected.
  
- 
  
  File: gcc.info,  Node: PDP-11 Options,  Next: picoChip Options,  Prev: Nvidia PTX Options,  Up: Submodel Options
  
--- 18098,18115 ----
  
  These options are defined for Nvidia PTX:
  
! '-m32'
! '-m64'
       Generate code for 32-bit or 64-bit ABI.
  
! '-mmainkernel'
       Link in code for a __main kernel.  This is for stand-alone instead
       of offloading execution.
  
! '-moptimize'
       Apply partitioned execution optimizations.  This is the default
       when any level of optimization is selected.
  
  
  File: gcc.info,  Node: PDP-11 Options,  Next: picoChip Options,  Prev: Nvidia PTX Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: PDP-11 Options,
*** 18218,18289 ****
  
  These options are defined for the PDP-11:
  
! `-mfpu'
       Use hardware FPP floating point.  This is the default.  (FIS
       floating point on the PDP-11/40 is not supported.)
  
! `-msoft-float'
       Do not use hardware floating point.
  
! `-mac0'
       Return floating-point results in ac0 (fr0 in Unix assembler
       syntax).
  
! `-mno-ac0'
       Return floating-point results in memory.  This is the default.
  
! `-m40'
       Generate code for a PDP-11/40.
  
! `-m45'
       Generate code for a PDP-11/45.  This is the default.
  
! `-m10'
       Generate code for a PDP-11/10.
  
! `-mbcopy-builtin'
!      Use inline `movmemhi' patterns for copying memory.  This is the
       default.
  
! `-mbcopy'
!      Do not use inline `movmemhi' patterns for copying memory.
  
! `-mint16'
! `-mno-int32'
!      Use 16-bit `int'.  This is the default.
  
! `-mint32'
! `-mno-int16'
!      Use 32-bit `int'.
  
! `-mfloat64'
! `-mno-float32'
!      Use 64-bit `float'.  This is the default.
  
! `-mfloat32'
! `-mno-float64'
!      Use 32-bit `float'.
  
! `-mabshi'
!      Use `abshi2' pattern.  This is the default.
  
! `-mno-abshi'
!      Do not use `abshi2' pattern.
  
! `-mbranch-expensive'
       Pretend that branches are expensive.  This is for experimenting
       with code generation only.
  
! `-mbranch-cheap'
       Do not pretend that branches are expensive.  This is the default.
  
! `-munix-asm'
       Use Unix assembler syntax.  This is the default when configured for
!      `pdp11-*-bsd'.
  
! `-mdec-asm'
       Use DEC assembler syntax.  This is the default when configured for
!      any PDP-11 target other than `pdp11-*-bsd'.
  
  
  File: gcc.info,  Node: picoChip Options,  Next: PowerPC Options,  Prev: PDP-11 Options,  Up: Submodel Options
--- 18118,18189 ----
  
  These options are defined for the PDP-11:
  
! '-mfpu'
       Use hardware FPP floating point.  This is the default.  (FIS
       floating point on the PDP-11/40 is not supported.)
  
! '-msoft-float'
       Do not use hardware floating point.
  
! '-mac0'
       Return floating-point results in ac0 (fr0 in Unix assembler
       syntax).
  
! '-mno-ac0'
       Return floating-point results in memory.  This is the default.
  
! '-m40'
       Generate code for a PDP-11/40.
  
! '-m45'
       Generate code for a PDP-11/45.  This is the default.
  
! '-m10'
       Generate code for a PDP-11/10.
  
! '-mbcopy-builtin'
!      Use inline 'movmemhi' patterns for copying memory.  This is the
       default.
  
! '-mbcopy'
!      Do not use inline 'movmemhi' patterns for copying memory.
  
! '-mint16'
! '-mno-int32'
!      Use 16-bit 'int'.  This is the default.
  
! '-mint32'
! '-mno-int16'
!      Use 32-bit 'int'.
  
! '-mfloat64'
! '-mno-float32'
!      Use 64-bit 'float'.  This is the default.
  
! '-mfloat32'
! '-mno-float64'
!      Use 32-bit 'float'.
  
! '-mabshi'
!      Use 'abshi2' pattern.  This is the default.
  
! '-mno-abshi'
!      Do not use 'abshi2' pattern.
  
! '-mbranch-expensive'
       Pretend that branches are expensive.  This is for experimenting
       with code generation only.
  
! '-mbranch-cheap'
       Do not pretend that branches are expensive.  This is the default.
  
! '-munix-asm'
       Use Unix assembler syntax.  This is the default when configured for
!      'pdp11-*-bsd'.
  
! '-mdec-asm'
       Use DEC assembler syntax.  This is the default when configured for
!      any PDP-11 target other than 'pdp11-*-bsd'.
  
  
  File: gcc.info,  Node: picoChip Options,  Next: PowerPC Options,  Prev: PDP-11 Options,  Up: Submodel Options
*************** File: gcc.info,  Node: picoChip Options,
*** 18291,18336 ****
  3.18.35 picoChip Options
  ------------------------
  
! These `-m' options are defined for picoChip implementations:
  
! `-mae=AE_TYPE'
       Set the instruction set, register set, and instruction scheduling
       parameters for array element type AE_TYPE.  Supported values for
!      AE_TYPE are `ANY', `MUL', and `MAC'.
  
!      `-mae=ANY' selects a completely generic AE type.  Code generated
       with this option runs on any of the other AE types.  The code is
!      not as efficient as it would be if compiled for a specific AE
!      type, and some types of operation (e.g., multiplication) do not
!      work properly on all types of AE.
  
!      `-mae=MUL' selects a MUL AE type.  This is the most useful AE type
       for compiled code, and is the default.
  
!      `-mae=MAC' selects a DSP-style MAC AE.  Code compiled with this
       option may suffer from poor performance of byte (char)
       manipulation, since the DSP AE does not provide hardware support
       for byte load/stores.
  
! `-msymbol-as-address'
       Enable the compiler to directly use a symbol name as an address in
!      a load/store instruction, without first loading it into a
!      register.  Typically, the use of this option generates larger
!      programs, which run faster than when the option isn't used.
!      However, the results vary from program to program, so it is left
!      as a user option, rather than being permanently enabled.
  
! `-mno-inefficient-warnings'
       Disables warnings about the generation of inefficient code.  These
       warnings can be generated, for example, when compiling code that
       performs byte-level memory operations on the MAC AE type.  The MAC
!      AE has no hardware support for byte-level memory operations, so
!      all byte load/stores must be synthesized from word load/store
       operations.  This is inefficient and a warning is generated to
!      indicate that you should rewrite the code to avoid byte
!      operations, or to target an AE type that has the necessary
!      hardware support.  This option disables these warnings.
! 
  
  
  File: gcc.info,  Node: PowerPC Options,  Next: RL78 Options,  Prev: picoChip Options,  Up: Submodel Options
--- 18191,18235 ----
  3.18.35 picoChip Options
  ------------------------
  
! These '-m' options are defined for picoChip implementations:
  
! '-mae=AE_TYPE'
       Set the instruction set, register set, and instruction scheduling
       parameters for array element type AE_TYPE.  Supported values for
!      AE_TYPE are 'ANY', 'MUL', and 'MAC'.
  
!      '-mae=ANY' selects a completely generic AE type.  Code generated
       with this option runs on any of the other AE types.  The code is
!      not as efficient as it would be if compiled for a specific AE type,
!      and some types of operation (e.g., multiplication) do not work
!      properly on all types of AE.
  
!      '-mae=MUL' selects a MUL AE type.  This is the most useful AE type
       for compiled code, and is the default.
  
!      '-mae=MAC' selects a DSP-style MAC AE. Code compiled with this
       option may suffer from poor performance of byte (char)
       manipulation, since the DSP AE does not provide hardware support
       for byte load/stores.
  
! '-msymbol-as-address'
       Enable the compiler to directly use a symbol name as an address in
!      a load/store instruction, without first loading it into a register.
!      Typically, the use of this option generates larger programs, which
!      run faster than when the option isn't used.  However, the results
!      vary from program to program, so it is left as a user option,
!      rather than being permanently enabled.
  
! '-mno-inefficient-warnings'
       Disables warnings about the generation of inefficient code.  These
       warnings can be generated, for example, when compiling code that
       performs byte-level memory operations on the MAC AE type.  The MAC
!      AE has no hardware support for byte-level memory operations, so all
!      byte load/stores must be synthesized from word load/store
       operations.  This is inefficient and a warning is generated to
!      indicate that you should rewrite the code to avoid byte operations,
!      or to target an AE type that has the necessary hardware support.
!      This option disables these warnings.
  
  
  File: gcc.info,  Node: PowerPC Options,  Next: RL78 Options,  Prev: picoChip Options,  Up: Submodel Options
*************** File: gcc.info,  Node: RL78 Options,  Ne
*** 18346,18392 ****
  3.18.37 RL78 Options
  --------------------
  
! `-msim'
       Links in additional target libraries to support operation within a
       simulator.
  
! `-mmul=none'
! `-mmul=g10'
! `-mmul=g13'
! `-mmul=g14'
! `-mmul=rl78'
       Specifies the type of hardware multiplication and division support
!      to be used.  The simplest is `none', which uses software for both
!      multiplication and division.  This is the default.  The `g13'
!      value is for the hardware multiply/divide peripheral found on the
!      RL78/G13 (S2 core) targets.  The `g14' value selects the use of
!      the multiplication and division instructions supported by the
!      RL78/G14 (S3 core) parts.  The value `rl78' is an alias for `g14'
!      and the value `mg10' is an alias for `none'.
  
       In addition a C preprocessor macro is defined, based upon the
!      setting of this option.  Possible values are: `__RL78_MUL_NONE__',
!      `__RL78_MUL_G13__' or `__RL78_MUL_G14__'.
  
! `-mcpu=g10'
! `-mcpu=g13'
! `-mcpu=g14'
! `-mcpu=rl78'
       Specifies the RL78 core to target.  The default is the G14 core,
!      also known as an S3 core or just RL78.  The G13 or S2 core does
!      not have multiply or divide instructions, instead it uses a
!      hardware peripheral for these operations.  The G10 or S1 core does
!      not have register banks, so it uses a different calling convention.
  
       If this option is set it also selects the type of hardware multiply
       support to use, unless this is overridden by an explicit
!      `-mmul=none' option on the command line.  Thus specifying
!      `-mcpu=g13' enables the use of the G13 hardware multiply
!      peripheral and specifying `-mcpu=g10' disables the use of hardware
       multiplications altogether.
  
       Note, although the RL78/G14 core is the default target, specifying
!      `-mcpu=g14' or `-mcpu=rl78' on the command line does change the
       behavior of the toolchain since it also enables G14 hardware
       multiply support.  If these options are not specified on the
       command line then software multiplication routines will be used
--- 18245,18291 ----
  3.18.37 RL78 Options
  --------------------
  
! '-msim'
       Links in additional target libraries to support operation within a
       simulator.
  
! '-mmul=none'
! '-mmul=g10'
! '-mmul=g13'
! '-mmul=g14'
! '-mmul=rl78'
       Specifies the type of hardware multiplication and division support
!      to be used.  The simplest is 'none', which uses software for both
!      multiplication and division.  This is the default.  The 'g13' value
!      is for the hardware multiply/divide peripheral found on the
!      RL78/G13 (S2 core) targets.  The 'g14' value selects the use of the
!      multiplication and division instructions supported by the RL78/G14
!      (S3 core) parts.  The value 'rl78' is an alias for 'g14' and the
!      value 'mg10' is an alias for 'none'.
  
       In addition a C preprocessor macro is defined, based upon the
!      setting of this option.  Possible values are: '__RL78_MUL_NONE__',
!      '__RL78_MUL_G13__' or '__RL78_MUL_G14__'.
  
! '-mcpu=g10'
! '-mcpu=g13'
! '-mcpu=g14'
! '-mcpu=rl78'
       Specifies the RL78 core to target.  The default is the G14 core,
!      also known as an S3 core or just RL78.  The G13 or S2 core does not
!      have multiply or divide instructions, instead it uses a hardware
!      peripheral for these operations.  The G10 or S1 core does not have
!      register banks, so it uses a different calling convention.
  
       If this option is set it also selects the type of hardware multiply
       support to use, unless this is overridden by an explicit
!      '-mmul=none' option on the command line.  Thus specifying
!      '-mcpu=g13' enables the use of the G13 hardware multiply peripheral
!      and specifying '-mcpu=g10' disables the use of hardware
       multiplications altogether.
  
       Note, although the RL78/G14 core is the default target, specifying
!      '-mcpu=g14' or '-mcpu=rl78' on the command line does change the
       behavior of the toolchain since it also enables G14 hardware
       multiply support.  If these options are not specified on the
       command line then software multiplication routines will be used
*************** File: gcc.info,  Node: RL78 Options,  Ne
*** 18395,18422 ****
       multiply and divide support.
  
       In addition a C preprocessor macro is defined, based upon the
!      setting of this option.  Possible values are: `__RL78_G10__',
!      `__RL78_G13__' or `__RL78_G14__'.
  
! `-mg10'
! `-mg13'
! `-mg14'
! `-mrl78'
!      These are aliases for the corresponding `-mcpu=' option.  They are
       provided for backwards compatibility.
  
! `-mallregs'
       Allow the compiler to use all of the available registers.  By
!      default registers `r24..r31' are reserved for use in interrupt
       handlers.  With this option enabled these registers can be used in
       ordinary functions as well.
  
! `-m64bit-doubles'
! `-m32bit-doubles'
!      Make the `double' data type be 64 bits (`-m64bit-doubles') or 32
!      bits (`-m32bit-doubles') in size.  The default is
!      `-m32bit-doubles'.
! 
  
  
  File: gcc.info,  Node: RS/6000 and PowerPC Options,  Next: RX Options,  Prev: RL78 Options,  Up: Submodel Options
--- 18294,18320 ----
       multiply and divide support.
  
       In addition a C preprocessor macro is defined, based upon the
!      setting of this option.  Possible values are: '__RL78_G10__',
!      '__RL78_G13__' or '__RL78_G14__'.
  
! '-mg10'
! '-mg13'
! '-mg14'
! '-mrl78'
!      These are aliases for the corresponding '-mcpu=' option.  They are
       provided for backwards compatibility.
  
! '-mallregs'
       Allow the compiler to use all of the available registers.  By
!      default registers 'r24..r31' are reserved for use in interrupt
       handlers.  With this option enabled these registers can be used in
       ordinary functions as well.
  
! '-m64bit-doubles'
! '-m32bit-doubles'
!      Make the 'double' data type be 64 bits ('-m64bit-doubles') or 32
!      bits ('-m32bit-doubles') in size.  The default is
!      '-m32bit-doubles'.
  
  
  File: gcc.info,  Node: RS/6000 and PowerPC Options,  Next: RX Options,  Prev: RL78 Options,  Up: Submodel Options
*************** File: gcc.info,  Node: RS/6000 and Power
*** 18424,18514 ****
  3.18.38 IBM RS/6000 and PowerPC Options
  ---------------------------------------
  
! These `-m' options are defined for the IBM RS/6000 and PowerPC:
! `-mpowerpc-gpopt'
! `-mno-powerpc-gpopt'
! `-mpowerpc-gfxopt'
! `-mno-powerpc-gfxopt'
! `-mpowerpc64'
! `-mno-powerpc64'
! `-mmfcrf'
! `-mno-mfcrf'
! `-mpopcntb'
! `-mno-popcntb'
! `-mpopcntd'
! `-mno-popcntd'
! `-mfprnd'
! `-mno-fprnd'
! `-mcmpb'
! `-mno-cmpb'
! `-mmfpgpr'
! `-mno-mfpgpr'
! `-mhard-dfp'
! `-mno-hard-dfp'
       You use these options to specify which instructions are available
!      on the processor you are using.  The default value of these
!      options is determined when configuring GCC.  Specifying the
!      `-mcpu=CPU_TYPE' overrides the specification of these options.  We
!      recommend you use the `-mcpu=CPU_TYPE' option rather than the
       options listed above.
  
!      Specifying `-mpowerpc-gpopt' allows GCC to use the optional
!      PowerPC architecture instructions in the General Purpose group,
!      including floating-point square root.  Specifying
!      `-mpowerpc-gfxopt' allows GCC to use the optional PowerPC
!      architecture instructions in the Graphics group, including
!      floating-point select.
  
!      The `-mmfcrf' option allows GCC to generate the move from
!      condition register field instruction implemented on the POWER4
!      processor and other processors that support the PowerPC V2.01
!      architecture.  The `-mpopcntb' option allows GCC to generate the
!      popcount and double-precision FP reciprocal estimate instruction
!      implemented on the POWER5 processor and other processors that
!      support the PowerPC V2.02 architecture.  The `-mpopcntd' option
!      allows GCC to generate the popcount instruction implemented on the
!      POWER7 processor and other processors that support the PowerPC
!      V2.06 architecture.  The `-mfprnd' option allows GCC to generate
!      the FP round to integer instructions implemented on the POWER5+
!      processor and other processors that support the PowerPC V2.03
!      architecture.  The `-mcmpb' option allows GCC to generate the
!      compare bytes instruction implemented on the POWER6 processor and
!      other processors that support the PowerPC V2.05 architecture.  The
!      `-mmfpgpr' option allows GCC to generate the FP move to/from
       general-purpose register instructions implemented on the POWER6X
       processor and other processors that support the extended PowerPC
!      V2.05 architecture.  The `-mhard-dfp' option allows GCC to
!      generate the decimal floating-point instructions implemented on
!      some POWER processors.
  
!      The `-mpowerpc64' option allows GCC to generate the additional
       64-bit instructions that are found in the full PowerPC64
       architecture and to treat GPRs as 64-bit, doubleword quantities.
!      GCC defaults to `-mno-powerpc64'.
  
! `-mcpu=CPU_TYPE'
       Set architecture type, register usage, and instruction scheduling
       parameters for machine type CPU_TYPE.  Supported values for
!      CPU_TYPE are `401', `403', `405', `405fp', `440', `440fp', `464',
!      `464fp', `476', `476fp', `505', `601', `602', `603', `603e',
!      `604', `604e', `620', `630', `740', `7400', `7450', `750', `801',
!      `821', `823', `860', `970', `8540', `a2', `e300c2', `e300c3',
!      `e500mc', `e500mc64', `e5500', `e6500', `ec603e', `G3', `G4', `G5',
!      `titan', `power3', `power4', `power5', `power5+', `power6',
!      `power6x', `power7', `power8', `power9', `powerpc', `powerpc64',
!      `powerpc64le', and `rs64'.
  
!      `-mcpu=powerpc', `-mcpu=powerpc64', and `-mcpu=powerpc64le'
!      specify pure 32-bit PowerPC (either endian), 64-bit big endian
!      PowerPC and 64-bit little endian PowerPC architecture machine
!      types, with an appropriate, generic processor model assumed for
!      scheduling purposes.
  
       The other options specify a specific processor.  Code generated
!      under those options runs best on that processor, and may not run
!      at all on others.
  
!      The `-mcpu' options automatically enable or disable the following
       options:
  
            -maltivec  -mfprnd  -mhard-float  -mmfcrf  -mmultiple
--- 18322,18411 ----
  3.18.38 IBM RS/6000 and PowerPC Options
  ---------------------------------------
  
! These '-m' options are defined for the IBM RS/6000 and PowerPC:
! '-mpowerpc-gpopt'
! '-mno-powerpc-gpopt'
! '-mpowerpc-gfxopt'
! '-mno-powerpc-gfxopt'
! '-mpowerpc64'
! '-mno-powerpc64'
! '-mmfcrf'
! '-mno-mfcrf'
! '-mpopcntb'
! '-mno-popcntb'
! '-mpopcntd'
! '-mno-popcntd'
! '-mfprnd'
! '-mno-fprnd'
! '-mcmpb'
! '-mno-cmpb'
! '-mmfpgpr'
! '-mno-mfpgpr'
! '-mhard-dfp'
! '-mno-hard-dfp'
       You use these options to specify which instructions are available
!      on the processor you are using.  The default value of these options
!      is determined when configuring GCC.  Specifying the
!      '-mcpu=CPU_TYPE' overrides the specification of these options.  We
!      recommend you use the '-mcpu=CPU_TYPE' option rather than the
       options listed above.
  
!      Specifying '-mpowerpc-gpopt' allows GCC to use the optional PowerPC
!      architecture instructions in the General Purpose group, including
!      floating-point square root.  Specifying '-mpowerpc-gfxopt' allows
!      GCC to use the optional PowerPC architecture instructions in the
!      Graphics group, including floating-point select.
  
!      The '-mmfcrf' option allows GCC to generate the move from condition
!      register field instruction implemented on the POWER4 processor and
!      other processors that support the PowerPC V2.01 architecture.  The
!      '-mpopcntb' option allows GCC to generate the popcount and
!      double-precision FP reciprocal estimate instruction implemented on
!      the POWER5 processor and other processors that support the PowerPC
!      V2.02 architecture.  The '-mpopcntd' option allows GCC to generate
!      the popcount instruction implemented on the POWER7 processor and
!      other processors that support the PowerPC V2.06 architecture.  The
!      '-mfprnd' option allows GCC to generate the FP round to integer
!      instructions implemented on the POWER5+ processor and other
!      processors that support the PowerPC V2.03 architecture.  The
!      '-mcmpb' option allows GCC to generate the compare bytes
!      instruction implemented on the POWER6 processor and other
!      processors that support the PowerPC V2.05 architecture.  The
!      '-mmfpgpr' option allows GCC to generate the FP move to/from
       general-purpose register instructions implemented on the POWER6X
       processor and other processors that support the extended PowerPC
!      V2.05 architecture.  The '-mhard-dfp' option allows GCC to generate
!      the decimal floating-point instructions implemented on some POWER
!      processors.
  
!      The '-mpowerpc64' option allows GCC to generate the additional
       64-bit instructions that are found in the full PowerPC64
       architecture and to treat GPRs as 64-bit, doubleword quantities.
!      GCC defaults to '-mno-powerpc64'.
  
! '-mcpu=CPU_TYPE'
       Set architecture type, register usage, and instruction scheduling
       parameters for machine type CPU_TYPE.  Supported values for
!      CPU_TYPE are '401', '403', '405', '405fp', '440', '440fp', '464',
!      '464fp', '476', '476fp', '505', '601', '602', '603', '603e', '604',
!      '604e', '620', '630', '740', '7400', '7450', '750', '801', '821',
!      '823', '860', '970', '8540', 'a2', 'e300c2', 'e300c3', 'e500mc',
!      'e500mc64', 'e5500', 'e6500', 'ec603e', 'G3', 'G4', 'G5', 'titan',
!      'power3', 'power4', 'power5', 'power5+', 'power6', 'power6x',
!      'power7', 'power8', 'power9', 'powerpc', 'powerpc64',
!      'powerpc64le', and 'rs64'.
  
!      '-mcpu=powerpc', '-mcpu=powerpc64', and '-mcpu=powerpc64le' specify
!      pure 32-bit PowerPC (either endian), 64-bit big endian PowerPC and
!      64-bit little endian PowerPC architecture machine types, with an
!      appropriate, generic processor model assumed for scheduling
!      purposes.
  
       The other options specify a specific processor.  Code generated
!      under those options runs best on that processor, and may not run at
!      all on others.
  
!      The '-mcpu' options automatically enable or disable the following
       options:
  
            -maltivec  -mfprnd  -mhard-float  -mmfcrf  -mmultiple
*************** These `-m' options are defined for the I
*** 18522,18778 ****
       compiler versions, depending on what setting seems to produce
       optimal code for that CPU; it doesn't necessarily reflect the
       actual hardware's capabilities.  If you wish to set an individual
!      option to a particular value, you may specify it after the `-mcpu'
!      option, like `-mcpu=970 -mno-altivec'.
  
!      On AIX, the `-maltivec' and `-mpowerpc64' options are not enabled
!      or disabled by the `-mcpu' option at present because AIX does not
       have full support for these options.  You may still enable or
       disable them individually if you're sure it'll work in your
       environment.
  
! `-mtune=CPU_TYPE'
       Set the instruction scheduling parameters for machine type
       CPU_TYPE, but do not set the architecture type or register usage,
!      as `-mcpu=CPU_TYPE' does.  The same values for CPU_TYPE are used
!      for `-mtune' as for `-mcpu'.  If both are specified, the code
!      generated uses the architecture and registers set by `-mcpu', but
!      the scheduling parameters set by `-mtune'.
  
! `-mcmodel=small'
       Generate PowerPC64 code for the small model: The TOC is limited to
       64k.
  
! `-mcmodel=medium'
       Generate PowerPC64 code for the medium model: The TOC and other
       static data may be up to a total of 4G in size.
  
! `-mcmodel=large'
       Generate PowerPC64 code for the large model: The TOC may be up to
       4G in size.  Other data and code is only limited by the 64-bit
       address space.
  
! `-maltivec'
! `-mno-altivec'
       Generate code that uses (does not use) AltiVec instructions, and
       also enable the use of built-in functions that allow more direct
       access to the AltiVec instruction set.  You may also need to set
!      `-mabi=altivec' to adjust the current ABI with AltiVec ABI
       enhancements.
  
!      When `-maltivec' is used, rather than `-maltivec=le' or
!      `-maltivec=be', the element order for AltiVec intrinsics such as
!      `vec_splat', `vec_extract', and `vec_insert' match array element
       order corresponding to the endianness of the target.  That is,
       element zero identifies the leftmost element in a vector register
       when targeting a big-endian platform, and identifies the rightmost
       element in a vector register when targeting a little-endian
       platform.
  
! `-maltivec=be'
       Generate AltiVec instructions using big-endian element order,
       regardless of whether the target is big- or little-endian.  This is
       the default when targeting a big-endian platform.
  
       The element order is used to interpret element numbers in AltiVec
!      intrinsics such as `vec_splat', `vec_extract', and `vec_insert'.
       By default, these match array element order corresponding to the
       endianness for the target.
  
! `-maltivec=le'
       Generate AltiVec instructions using little-endian element order,
       regardless of whether the target is big- or little-endian.  This is
       the default when targeting a little-endian platform.  This option
       is currently ignored when targeting a big-endian platform.
  
       The element order is used to interpret element numbers in AltiVec
!      intrinsics such as `vec_splat', `vec_extract', and `vec_insert'.
       By default, these match array element order corresponding to the
       endianness for the target.
  
! `-mvrsave'
! `-mno-vrsave'
       Generate VRSAVE instructions when generating AltiVec code.
  
! `-mgen-cell-microcode'
       Generate Cell microcode instructions.
  
! `-mwarn-cell-microcode'
!      Warn when a Cell microcode instruction is emitted.  An example of
!      a Cell microcode instruction is a variable shift.
  
! `-msecure-plt'
!      Generate code that allows `ld' and `ld.so' to build executables
!      and shared libraries with non-executable `.plt' and `.got'
!      sections.  This is a PowerPC 32-bit SYSV ABI option.
  
! `-mbss-plt'
!      Generate code that uses a BSS `.plt' section that `ld.so' fills
!      in, and requires `.plt' and `.got' sections that are both writable
!      and executable.  This is a PowerPC 32-bit SYSV ABI option.
  
! `-misel'
! `-mno-isel'
       This switch enables or disables the generation of ISEL
       instructions.
  
! `-misel=YES/NO'
!      This switch has been deprecated.  Use `-misel' and `-mno-isel'
       instead.
  
! `-mlra'
       Enable Local Register Allocation.  This is still experimental for
       PowerPC, so by default the compiler uses standard reload (i.e.
!      `-mno-lra').
  
! `-mspe'
! `-mno-spe'
       This switch enables or disables the generation of SPE simd
       instructions.
  
! `-mpaired'
! `-mno-paired'
       This switch enables or disables the generation of PAIRED simd
       instructions.
  
! `-mspe=YES/NO'
!      This option has been deprecated.  Use `-mspe' and `-mno-spe'
       instead.
  
! `-mvsx'
! `-mno-vsx'
       Generate code that uses (does not use) vector/scalar (VSX)
       instructions, and also enable the use of built-in functions that
       allow more direct access to the VSX instruction set.
  
! `-mcrypto'
! `-mno-crypto'
       Enable the use (disable) of the built-in functions that allow
       direct access to the cryptographic instructions that were added in
       version 2.07 of the PowerPC ISA.
  
! `-mdirect-move'
! `-mno-direct-move'
       Generate code that uses (does not use) the instructions to move
       data between the general purpose registers and the vector/scalar
       (VSX) registers that were added in version 2.07 of the PowerPC ISA.
  
! `-mhtm'
! `-mno-htm'
       Enable (disable) the use of the built-in functions that allow
       direct access to the Hardware Transactional Memory (HTM)
       instructions that were added in version 2.07 of the PowerPC ISA.
  
! `-mpower8-fusion'
! `-mno-power8-fusion'
       Generate code that keeps (does not keeps) some integer operations
       adjacent so that the instructions can be fused together on power8
       and later processors.
  
! `-mpower8-vector'
! `-mno-power8-vector'
       Generate code that uses (does not use) the vector and scalar
       instructions that were added in version 2.07 of the PowerPC ISA.
       Also enable the use of built-in functions that allow more direct
       access to the vector instructions.
  
! `-mquad-memory'
! `-mno-quad-memory'
       Generate code that uses (does not use) the non-atomic quad word
!      memory instructions.  The `-mquad-memory' option requires use of
       64-bit mode.
  
! `-mquad-memory-atomic'
! `-mno-quad-memory-atomic'
       Generate code that uses (does not use) the atomic quad word memory
!      instructions.  The `-mquad-memory-atomic' option requires use of
       64-bit mode.
  
! `-mupper-regs-df'
! `-mno-upper-regs-df'
       Generate code that uses (does not use) the scalar double precision
       instructions that target all 64 registers in the vector/scalar
       floating point register set that were added in version 2.06 of the
!      PowerPC ISA.  `-mupper-regs-df' is turned on by default if you use
!      any of the `-mcpu=power7', `-mcpu=power8', or `-mvsx' options.
  
! `-mupper-regs-sf'
! `-mno-upper-regs-sf'
       Generate code that uses (does not use) the scalar single precision
       instructions that target all 64 registers in the vector/scalar
       floating point register set that were added in version 2.07 of the
!      PowerPC ISA.  `-mupper-regs-sf' is turned on by default if you use
!      either of the `-mcpu=power8', `-mpower8-vector', or `-mcpu=power9'
       options.
  
! `-mupper-regs'
! `-mno-upper-regs'
!      Generate code that uses (does not use) the scalar instructions
!      that target all 64 registers in the vector/scalar floating point
       register set, depending on the model of the machine.
  
!      If the `-mno-upper-regs' option is used, it turns off both
!      `-mupper-regs-sf' and `-mupper-regs-df' options.
  
! `-mfloat128'
! `-mno-float128'
       Enable/disable the __FLOAT128 keyword for IEEE 128-bit floating
       point and use either software emulation for IEEE 128-bit floating
       point or hardware instructions.
  
!      The VSX instruction set (`-mvsx', `-mcpu=power7', or
!      `-mcpu=power8') must be enabled to use the `-mfloat128' option.
!      The `-mfloat128' option only works on PowerPC 64-bit Linux systems.
  
!      If you use the ISA 3.0 instruction set (`-mcpu=power9'), the
!      `-mfloat128' option will also enable the generation of ISA 3.0
!      IEEE 128-bit floating point instructions.  Otherwise, IEEE 128-bit
       floating point will be done with software emulation.
  
! `-mfloat128-hardware'
! `-mno-float128-hardware'
       Enable/disable using ISA 3.0 hardware instructions to support the
       __FLOAT128 data type.
  
!      If you use `-mfloat128-hardware', it will enable the option
!      `-mfloat128' as well.
  
!      If you select ISA 3.0 instructions with `-mcpu=power9', but do not
!      use either `-mfloat128' or `-mfloat128-hardware', the IEEE 128-bit
       floating point support will not be enabled.
  
! `-mfloat-gprs=YES/SINGLE/DOUBLE/NO'
! `-mfloat-gprs'
       This switch enables or disables the generation of floating-point
       operations on the general-purpose registers for architectures that
       support it.
  
!      The argument `yes' or `single' enables the use of single-precision
       floating-point operations.
  
!      The argument `double' enables the use of single and
       double-precision floating-point operations.
  
!      The argument `no' disables floating-point operations on the
       general-purpose registers.
  
       This option is currently only available on the MPC854x.
  
! `-m32'
! `-m64'
       Generate code for 32-bit or 64-bit environments of Darwin and SVR4
       targets (including GNU/Linux).  The 32-bit environment sets int,
       long and pointer to 32 bits and generates code that runs on any
       PowerPC variant.  The 64-bit environment sets int to 32 bits and
       long and pointer to 64 bits, and generates code for PowerPC64, as
!      for `-mpowerpc64'.
  
! `-mfull-toc'
! `-mno-fp-in-toc'
! `-mno-sum-in-toc'
! `-mminimal-toc'
       Modify generation of the TOC (Table Of Contents), which is created
!      for every executable file.  The `-mfull-toc' option is selected by
       default.  In that case, GCC allocates at least one TOC entry for
       each unique non-automatic variable reference in your program.  GCC
       also places floating-point constants in the TOC.  However, only
--- 18419,18675 ----
       compiler versions, depending on what setting seems to produce
       optimal code for that CPU; it doesn't necessarily reflect the
       actual hardware's capabilities.  If you wish to set an individual
!      option to a particular value, you may specify it after the '-mcpu'
!      option, like '-mcpu=970 -mno-altivec'.
  
!      On AIX, the '-maltivec' and '-mpowerpc64' options are not enabled
!      or disabled by the '-mcpu' option at present because AIX does not
       have full support for these options.  You may still enable or
       disable them individually if you're sure it'll work in your
       environment.
  
! '-mtune=CPU_TYPE'
       Set the instruction scheduling parameters for machine type
       CPU_TYPE, but do not set the architecture type or register usage,
!      as '-mcpu=CPU_TYPE' does.  The same values for CPU_TYPE are used
!      for '-mtune' as for '-mcpu'.  If both are specified, the code
!      generated uses the architecture and registers set by '-mcpu', but
!      the scheduling parameters set by '-mtune'.
  
! '-mcmodel=small'
       Generate PowerPC64 code for the small model: The TOC is limited to
       64k.
  
! '-mcmodel=medium'
       Generate PowerPC64 code for the medium model: The TOC and other
       static data may be up to a total of 4G in size.
  
! '-mcmodel=large'
       Generate PowerPC64 code for the large model: The TOC may be up to
       4G in size.  Other data and code is only limited by the 64-bit
       address space.
  
! '-maltivec'
! '-mno-altivec'
       Generate code that uses (does not use) AltiVec instructions, and
       also enable the use of built-in functions that allow more direct
       access to the AltiVec instruction set.  You may also need to set
!      '-mabi=altivec' to adjust the current ABI with AltiVec ABI
       enhancements.
  
!      When '-maltivec' is used, rather than '-maltivec=le' or
!      '-maltivec=be', the element order for AltiVec intrinsics such as
!      'vec_splat', 'vec_extract', and 'vec_insert' match array element
       order corresponding to the endianness of the target.  That is,
       element zero identifies the leftmost element in a vector register
       when targeting a big-endian platform, and identifies the rightmost
       element in a vector register when targeting a little-endian
       platform.
  
! '-maltivec=be'
       Generate AltiVec instructions using big-endian element order,
       regardless of whether the target is big- or little-endian.  This is
       the default when targeting a big-endian platform.
  
       The element order is used to interpret element numbers in AltiVec
!      intrinsics such as 'vec_splat', 'vec_extract', and 'vec_insert'.
       By default, these match array element order corresponding to the
       endianness for the target.
  
! '-maltivec=le'
       Generate AltiVec instructions using little-endian element order,
       regardless of whether the target is big- or little-endian.  This is
       the default when targeting a little-endian platform.  This option
       is currently ignored when targeting a big-endian platform.
  
       The element order is used to interpret element numbers in AltiVec
!      intrinsics such as 'vec_splat', 'vec_extract', and 'vec_insert'.
       By default, these match array element order corresponding to the
       endianness for the target.
  
! '-mvrsave'
! '-mno-vrsave'
       Generate VRSAVE instructions when generating AltiVec code.
  
! '-mgen-cell-microcode'
       Generate Cell microcode instructions.
  
! '-mwarn-cell-microcode'
!      Warn when a Cell microcode instruction is emitted.  An example of a
!      Cell microcode instruction is a variable shift.
  
! '-msecure-plt'
!      Generate code that allows 'ld' and 'ld.so' to build executables and
!      shared libraries with non-executable '.plt' and '.got' sections.
!      This is a PowerPC 32-bit SYSV ABI option.
  
! '-mbss-plt'
!      Generate code that uses a BSS '.plt' section that 'ld.so' fills in,
!      and requires '.plt' and '.got' sections that are both writable and
!      executable.  This is a PowerPC 32-bit SYSV ABI option.
  
! '-misel'
! '-mno-isel'
       This switch enables or disables the generation of ISEL
       instructions.
  
! '-misel=YES/NO'
!      This switch has been deprecated.  Use '-misel' and '-mno-isel'
       instead.
  
! '-mlra'
       Enable Local Register Allocation.  This is still experimental for
       PowerPC, so by default the compiler uses standard reload (i.e.
!      '-mno-lra').
  
! '-mspe'
! '-mno-spe'
       This switch enables or disables the generation of SPE simd
       instructions.
  
! '-mpaired'
! '-mno-paired'
       This switch enables or disables the generation of PAIRED simd
       instructions.
  
! '-mspe=YES/NO'
!      This option has been deprecated.  Use '-mspe' and '-mno-spe'
       instead.
  
! '-mvsx'
! '-mno-vsx'
       Generate code that uses (does not use) vector/scalar (VSX)
       instructions, and also enable the use of built-in functions that
       allow more direct access to the VSX instruction set.
  
! '-mcrypto'
! '-mno-crypto'
       Enable the use (disable) of the built-in functions that allow
       direct access to the cryptographic instructions that were added in
       version 2.07 of the PowerPC ISA.
  
! '-mdirect-move'
! '-mno-direct-move'
       Generate code that uses (does not use) the instructions to move
       data between the general purpose registers and the vector/scalar
       (VSX) registers that were added in version 2.07 of the PowerPC ISA.
  
! '-mhtm'
! '-mno-htm'
       Enable (disable) the use of the built-in functions that allow
       direct access to the Hardware Transactional Memory (HTM)
       instructions that were added in version 2.07 of the PowerPC ISA.
  
! '-mpower8-fusion'
! '-mno-power8-fusion'
       Generate code that keeps (does not keeps) some integer operations
       adjacent so that the instructions can be fused together on power8
       and later processors.
  
! '-mpower8-vector'
! '-mno-power8-vector'
       Generate code that uses (does not use) the vector and scalar
       instructions that were added in version 2.07 of the PowerPC ISA.
       Also enable the use of built-in functions that allow more direct
       access to the vector instructions.
  
! '-mquad-memory'
! '-mno-quad-memory'
       Generate code that uses (does not use) the non-atomic quad word
!      memory instructions.  The '-mquad-memory' option requires use of
       64-bit mode.
  
! '-mquad-memory-atomic'
! '-mno-quad-memory-atomic'
       Generate code that uses (does not use) the atomic quad word memory
!      instructions.  The '-mquad-memory-atomic' option requires use of
       64-bit mode.
  
! '-mupper-regs-df'
! '-mno-upper-regs-df'
       Generate code that uses (does not use) the scalar double precision
       instructions that target all 64 registers in the vector/scalar
       floating point register set that were added in version 2.06 of the
!      PowerPC ISA. '-mupper-regs-df' is turned on by default if you use
!      any of the '-mcpu=power7', '-mcpu=power8', or '-mvsx' options.
  
! '-mupper-regs-sf'
! '-mno-upper-regs-sf'
       Generate code that uses (does not use) the scalar single precision
       instructions that target all 64 registers in the vector/scalar
       floating point register set that were added in version 2.07 of the
!      PowerPC ISA. '-mupper-regs-sf' is turned on by default if you use
!      either of the '-mcpu=power8', '-mpower8-vector', or '-mcpu=power9'
       options.
  
! '-mupper-regs'
! '-mno-upper-regs'
!      Generate code that uses (does not use) the scalar instructions that
!      target all 64 registers in the vector/scalar floating point
       register set, depending on the model of the machine.
  
!      If the '-mno-upper-regs' option is used, it turns off both
!      '-mupper-regs-sf' and '-mupper-regs-df' options.
  
! '-mfloat128'
! '-mno-float128'
       Enable/disable the __FLOAT128 keyword for IEEE 128-bit floating
       point and use either software emulation for IEEE 128-bit floating
       point or hardware instructions.
  
!      The VSX instruction set ('-mvsx', '-mcpu=power7', or
!      '-mcpu=power8') must be enabled to use the '-mfloat128' option.
!      The '-mfloat128' option only works on PowerPC 64-bit Linux systems.
  
!      If you use the ISA 3.0 instruction set ('-mcpu=power9'), the
!      '-mfloat128' option will also enable the generation of ISA 3.0 IEEE
!      128-bit floating point instructions.  Otherwise, IEEE 128-bit
       floating point will be done with software emulation.
  
! '-mfloat128-hardware'
! '-mno-float128-hardware'
       Enable/disable using ISA 3.0 hardware instructions to support the
       __FLOAT128 data type.
  
!      If you use '-mfloat128-hardware', it will enable the option
!      '-mfloat128' as well.
  
!      If you select ISA 3.0 instructions with '-mcpu=power9', but do not
!      use either '-mfloat128' or '-mfloat128-hardware', the IEEE 128-bit
       floating point support will not be enabled.
  
! '-mfloat-gprs=YES/SINGLE/DOUBLE/NO'
! '-mfloat-gprs'
       This switch enables or disables the generation of floating-point
       operations on the general-purpose registers for architectures that
       support it.
  
!      The argument 'yes' or 'single' enables the use of single-precision
       floating-point operations.
  
!      The argument 'double' enables the use of single and
       double-precision floating-point operations.
  
!      The argument 'no' disables floating-point operations on the
       general-purpose registers.
  
       This option is currently only available on the MPC854x.
  
! '-m32'
! '-m64'
       Generate code for 32-bit or 64-bit environments of Darwin and SVR4
       targets (including GNU/Linux).  The 32-bit environment sets int,
       long and pointer to 32 bits and generates code that runs on any
       PowerPC variant.  The 64-bit environment sets int to 32 bits and
       long and pointer to 64 bits, and generates code for PowerPC64, as
!      for '-mpowerpc64'.
  
! '-mfull-toc'
! '-mno-fp-in-toc'
! '-mno-sum-in-toc'
! '-mminimal-toc'
       Modify generation of the TOC (Table Of Contents), which is created
!      for every executable file.  The '-mfull-toc' option is selected by
       default.  In that case, GCC allocates at least one TOC entry for
       each unique non-automatic variable reference in your program.  GCC
       also places floating-point constants in the TOC.  However, only
*************** These `-m' options are defined for the I
*** 18780,18811 ****
  
       If you receive a linker error message that saying you have
       overflowed the available TOC space, you can reduce the amount of
!      TOC space used with the `-mno-fp-in-toc' and `-mno-sum-in-toc'
!      options.  `-mno-fp-in-toc' prevents GCC from putting floating-point
!      constants in the TOC and `-mno-sum-in-toc' forces GCC to generate
       code to calculate the sum of an address and a constant at run time
       instead of putting that sum into the TOC.  You may specify one or
       both of these options.  Each causes GCC to produce very slightly
       slower and larger code at the expense of conserving TOC space.
  
!      If you still run out of space in the TOC even when you specify
!      both of these options, specify `-mminimal-toc' instead.  This
!      option causes GCC to make only one TOC entry for every file.  When
!      you specify this option, GCC produces code that is slower and
!      larger but which uses extremely little TOC space.  You may wish to
!      use this option only on files that contain less
!      frequently-executed code.
  
! `-maix64'
! `-maix32'
       Enable 64-bit AIX ABI and calling convention: 64-bit pointers,
!      64-bit `long' type, and the infrastructure needed to support them.
!      Specifying `-maix64' implies `-mpowerpc64', while `-maix32'
!      disables the 64-bit ABI and implies `-mno-powerpc64'.  GCC
!      defaults to `-maix32'.
  
! `-mxl-compat'
! `-mno-xl-compat'
       Produce code that conforms more closely to IBM XL compiler
       semantics when using AIX-compatible ABI.  Pass floating-point
       arguments to prototyped functions beyond the register save area
--- 18677,18708 ----
  
       If you receive a linker error message that saying you have
       overflowed the available TOC space, you can reduce the amount of
!      TOC space used with the '-mno-fp-in-toc' and '-mno-sum-in-toc'
!      options.  '-mno-fp-in-toc' prevents GCC from putting floating-point
!      constants in the TOC and '-mno-sum-in-toc' forces GCC to generate
       code to calculate the sum of an address and a constant at run time
       instead of putting that sum into the TOC.  You may specify one or
       both of these options.  Each causes GCC to produce very slightly
       slower and larger code at the expense of conserving TOC space.
  
!      If you still run out of space in the TOC even when you specify both
!      of these options, specify '-mminimal-toc' instead.  This option
!      causes GCC to make only one TOC entry for every file.  When you
!      specify this option, GCC produces code that is slower and larger
!      but which uses extremely little TOC space.  You may wish to use
!      this option only on files that contain less frequently-executed
!      code.
  
! '-maix64'
! '-maix32'
       Enable 64-bit AIX ABI and calling convention: 64-bit pointers,
!      64-bit 'long' type, and the infrastructure needed to support them.
!      Specifying '-maix64' implies '-mpowerpc64', while '-maix32'
!      disables the 64-bit ABI and implies '-mno-powerpc64'.  GCC defaults
!      to '-maix32'.
  
! '-mxl-compat'
! '-mno-xl-compat'
       Produce code that conforms more closely to IBM XL compiler
       semantics when using AIX-compatible ABI.  Pass floating-point
       arguments to prototyped functions beyond the register save area
*************** These `-m' options are defined for the I
*** 18817,19252 ****
       The AIX calling convention was extended but not initially
       documented to handle an obscure K&R C case of calling a function
       that takes the address of its arguments with fewer arguments than
!      declared.  IBM XL compilers access floating-point arguments that
!      do not fit in the RSA from the stack when a subroutine is compiled
       without optimization.  Because always storing floating-point
       arguments on the stack is inefficient and rarely needed, this
!      option is not enabled by default and only is necessary when
!      calling subroutines compiled by IBM XL compilers without
!      optimization.
  
! `-mpe'
       Support "IBM RS/6000 SP" "Parallel Environment" (PE).  Link an
       application written to use message passing with special startup
       code to enable the application to run.  The system must have PE
!      installed in the standard location (`/usr/lpp/ppe.poe/'), or the
!      `specs' file must be overridden with the `-specs=' option to
       specify the appropriate directory location.  The Parallel
!      Environment does not support threads, so the `-mpe' option and the
!      `-pthread' option are incompatible.
  
! `-malign-natural'
! `-malign-power'
       On AIX, 32-bit Darwin, and 64-bit PowerPC GNU/Linux, the option
!      `-malign-natural' overrides the ABI-defined alignment of larger
       types, such as floating-point doubles, on their natural size-based
!      boundary.  The option `-malign-power' instructs GCC to follow the
       ABI-specified alignment rules.  GCC defaults to the standard
       alignment defined in the ABI.
  
       On 64-bit Darwin, natural alignment is the default, and
!      `-malign-power' is not supported.
  
! `-msoft-float'
! `-mhard-float'
       Generate code that does not use (uses) the floating-point register
       set.  Software floating-point emulation is provided if you use the
!      `-msoft-float' option, and pass the option to GCC when linking.
  
! `-msingle-float'
! `-mdouble-float'
       Generate code for single- or double-precision floating-point
!      operations.  `-mdouble-float' implies `-msingle-float'.
  
! `-msimple-fpu'
!      Do not generate `sqrt' and `div' instructions for hardware
       floating-point unit.
  
! `-mfpu=NAME'
       Specify type of floating-point unit.  Valid values for NAME are
!      `sp_lite' (equivalent to `-msingle-float -msimple-fpu'), `dp_lite'
!      (equivalent to `-mdouble-float -msimple-fpu'), `sp_full'
!      (equivalent to `-msingle-float'), and `dp_full' (equivalent to
!      `-mdouble-float').
  
! `-mxilinx-fpu'
       Perform optimizations for the floating-point unit on Xilinx PPC
       405/440.
  
! `-mmultiple'
! `-mno-multiple'
       Generate code that uses (does not use) the load multiple word
       instructions and the store multiple word instructions.  These
       instructions are generated by default on POWER systems, and not
!      generated on PowerPC systems.  Do not use `-mmultiple' on
!      little-endian PowerPC systems, since those instructions do not
!      work when the processor is in little-endian mode.  The exceptions
!      are PPC740 and PPC750 which permit these instructions in
!      little-endian mode.
  
! `-mstring'
! `-mno-string'
       Generate code that uses (does not use) the load string instructions
       and the store string word instructions to save multiple registers
       and do small block moves.  These instructions are generated by
!      default on POWER systems, and not generated on PowerPC systems.
!      Do not use `-mstring' on little-endian PowerPC systems, since those
       instructions do not work when the processor is in little-endian
       mode.  The exceptions are PPC740 and PPC750 which permit these
       instructions in little-endian mode.
  
! `-mupdate'
! `-mno-update'
       Generate code that uses (does not use) the load or store
       instructions that update the base register to the address of the
       calculated memory location.  These instructions are generated by
!      default.  If you use `-mno-update', there is a small window
!      between the time that the stack pointer is updated and the address
!      of the previous frame is stored, which means code that walks the
!      stack frame across interrupts or signals may get corrupted data.
  
! `-mavoid-indexed-addresses'
! `-mno-avoid-indexed-addresses'
       Generate code that tries to avoid (not avoid) the use of indexed
!      load or store instructions. These instructions can incur a
       performance penalty on Power6 processors in certain situations,
       such as when stepping through large arrays that cross a 16M
       boundary.  This option is enabled by default when targeting Power6
       and disabled otherwise.
  
! `-mfused-madd'
! `-mno-fused-madd'
       Generate code that uses (does not use) the floating-point multiply
       and accumulate instructions.  These instructions are generated by
       default if hardware floating point is used.  The machine-dependent
!      `-mfused-madd' option is now mapped to the machine-independent
!      `-ffp-contract=fast' option, and `-mno-fused-madd' is mapped to
!      `-ffp-contract=off'.
  
! `-mmulhw'
! `-mno-mulhw'
       Generate code that uses (does not use) the half-word multiply and
       multiply-accumulate instructions on the IBM 405, 440, 464 and 476
       processors.  These instructions are generated by default when
       targeting those processors.
  
! `-mdlmzb'
! `-mno-dlmzb'
!      Generate code that uses (does not use) the string-search `dlmzb'
       instruction on the IBM 405, 440, 464 and 476 processors.  This
       instruction is generated by default when targeting those
       processors.
  
! `-mno-bit-align'
! `-mbit-align'
       On System V.4 and embedded PowerPC systems do not (do) force
       structures and unions that contain bit-fields to be aligned to the
       base type of the bit-field.
  
       For example, by default a structure containing nothing but 8
!      `unsigned' bit-fields of length 1 is aligned to a 4-byte boundary
!      and has a size of 4 bytes.  By using `-mno-bit-align', the
       structure is aligned to a 1-byte boundary and is 1 byte in size.
  
! `-mno-strict-align'
! `-mstrict-align'
       On System V.4 and embedded PowerPC systems do not (do) assume that
       unaligned memory references are handled by the system.
  
! `-mrelocatable'
! `-mno-relocatable'
       Generate code that allows (does not allow) a static executable to
       be relocated to a different address at run time.  A simple embedded
       PowerPC system loader should relocate the entire contents of
!      `.got2' and 4-byte locations listed in the `.fixup' section, a
       table of 32-bit addresses generated by this option.  For this to
       work, all objects linked together must be compiled with
!      `-mrelocatable' or `-mrelocatable-lib'.  `-mrelocatable' code
       aligns the stack to an 8-byte boundary.
  
! `-mrelocatable-lib'
! `-mno-relocatable-lib'
!      Like `-mrelocatable', `-mrelocatable-lib' generates a `.fixup'
       section to allow static executables to be relocated at run time,
!      but `-mrelocatable-lib' does not use the smaller stack alignment
!      of `-mrelocatable'.  Objects compiled with `-mrelocatable-lib' may
!      be linked with objects compiled with any combination of the
!      `-mrelocatable' options.
  
! `-mno-toc'
! `-mtoc'
       On System V.4 and embedded PowerPC systems do not (do) assume that
       register 2 contains a pointer to a global area pointing to the
       addresses used in the program.
  
! `-mlittle'
! `-mlittle-endian'
       On System V.4 and embedded PowerPC systems compile code for the
!      processor in little-endian mode.  The `-mlittle-endian' option is
!      the same as `-mlittle'.
  
! `-mbig'
! `-mbig-endian'
       On System V.4 and embedded PowerPC systems compile code for the
!      processor in big-endian mode.  The `-mbig-endian' option is the
!      same as `-mbig'.
  
! `-mdynamic-no-pic'
       On Darwin and Mac OS X systems, compile code so that it is not
       relocatable, but that its external references are relocatable.  The
       resulting code is suitable for applications, but not shared
       libraries.
  
! `-msingle-pic-base'
       Treat the register used for PIC addressing as read-only, rather
       than loading it in the prologue for each function.  The runtime
       system is responsible for initializing this register with an
       appropriate value before execution begins.
  
! `-mprioritize-restricted-insns=PRIORITY'
!      This option controls the priority that is assigned to
!      dispatch-slot restricted instructions during the second scheduling
!      pass.  The argument PRIORITY takes the value `0', `1', or `2' to
!      assign no, highest, or second-highest (respectively) priority to
!      dispatch-slot restricted instructions.
  
! `-msched-costly-dep=DEPENDENCE_TYPE'
!      This option controls which dependences are considered costly by
!      the target during instruction scheduling.  The argument
!      DEPENDENCE_TYPE takes one of the following values:
  
!     `no'
            No dependence is costly.
  
!     `all'
            All dependences are costly.
  
!     `true_store_to_load'
            A true dependence from store to load is costly.
  
!     `store_to_load'
            Any dependence from store to load is costly.
  
!     NUMBER
            Any dependence for which the latency is greater than or equal
            to NUMBER is costly.
  
! `-minsert-sched-nops=SCHEME'
       This option controls which NOP insertion scheme is used during the
       second scheduling pass.  The argument SCHEME takes one of the
       following values:
  
!     `no'
            Don't insert NOPs.
  
!     `pad'
            Pad with NOPs any dispatch group that has vacant issue slots,
            according to the scheduler's grouping.
  
!     `regroup_exact'
            Insert NOPs to force costly dependent insns into separate
            groups.  Insert exactly as many NOPs as needed to force an
            insn to a new group, according to the estimated processor
            grouping.
  
!     NUMBER
            Insert NOPs to force costly dependent insns into separate
            groups.  Insert NUMBER NOPs to force an insn to a new group.
  
! `-mcall-sysv'
       On System V.4 and embedded PowerPC systems compile code using
       calling conventions that adhere to the March 1995 draft of the
       System V Application Binary Interface, PowerPC processor
       supplement.  This is the default unless you configured GCC using
!      `powerpc-*-eabiaix'.
  
! `-mcall-sysv-eabi'
! `-mcall-eabi'
!      Specify both `-mcall-sysv' and `-meabi' options.
  
! `-mcall-sysv-noeabi'
!      Specify both `-mcall-sysv' and `-mno-eabi' options.
  
! `-mcall-aixdesc'
       On System V.4 and embedded PowerPC systems compile code for the AIX
       operating system.
  
! `-mcall-linux'
       On System V.4 and embedded PowerPC systems compile code for the
       Linux-based GNU system.
  
! `-mcall-freebsd'
       On System V.4 and embedded PowerPC systems compile code for the
       FreeBSD operating system.
  
! `-mcall-netbsd'
       On System V.4 and embedded PowerPC systems compile code for the
       NetBSD operating system.
  
! `-mcall-openbsd'
       On System V.4 and embedded PowerPC systems compile code for the
       OpenBSD operating system.
  
! `-maix-struct-return'
       Return all structures in memory (as specified by the AIX ABI).
  
! `-msvr4-struct-return'
       Return structures smaller than 8 bytes in registers (as specified
       by the SVR4 ABI).
  
! `-mabi=ABI-TYPE'
       Extend the current ABI with a particular extension, or remove such
!      extension.  Valid values are `altivec', `no-altivec', `spe',
!      `no-spe', `ibmlongdouble', `ieeelongdouble', `elfv1', `elfv2'.
  
! `-mabi=spe'
       Extend the current ABI with SPE ABI extensions.  This does not
       change the default ABI, instead it adds the SPE ABI extensions to
       the current ABI.
  
! `-mabi=no-spe'
       Disable Book-E SPE ABI extensions for the current ABI.
  
! `-mabi=ibmlongdouble'
       Change the current ABI to use IBM extended-precision long double.
       This is a PowerPC 32-bit SYSV ABI option.
  
! `-mabi=ieeelongdouble'
       Change the current ABI to use IEEE extended-precision long double.
       This is a PowerPC 32-bit Linux ABI option.
  
! `-mabi=elfv1'
!      Change the current ABI to use the ELFv1 ABI.  This is the default
       ABI for big-endian PowerPC 64-bit Linux.  Overriding the default
       ABI requires special system support and is likely to fail in
       spectacular ways.
  
! `-mabi=elfv2'
!      Change the current ABI to use the ELFv2 ABI.  This is the default
!      ABI for little-endian PowerPC 64-bit Linux.  Overriding the
!      default ABI requires special system support and is likely to fail
!      in spectacular ways.
  
! `-mprototype'
! `-mno-prototype'
       On System V.4 and embedded PowerPC systems assume that all calls to
       variable argument functions are properly prototyped.  Otherwise,
!      the compiler must insert an instruction before every
!      non-prototyped call to set or clear bit 6 of the condition code
!      register (`CR') to indicate whether floating-point values are
!      passed in the floating-point registers in case the function takes
!      variable arguments.  With `-mprototype', only calls to prototyped
!      variable argument functions set or clear the bit.
  
! `-msim'
       On embedded PowerPC systems, assume that the startup module is
!      called `sim-crt0.o' and that the standard C libraries are
!      `libsim.a' and `libc.a'.  This is the default for
!      `powerpc-*-eabisim' configurations.
  
! `-mmvme'
       On embedded PowerPC systems, assume that the startup module is
!      called `crt0.o' and the standard C libraries are `libmvme.a' and
!      `libc.a'.
  
! `-mads'
       On embedded PowerPC systems, assume that the startup module is
!      called `crt0.o' and the standard C libraries are `libads.a' and
!      `libc.a'.
  
! `-myellowknife'
       On embedded PowerPC systems, assume that the startup module is
!      called `crt0.o' and the standard C libraries are `libyk.a' and
!      `libc.a'.
  
! `-mvxworks'
       On System V.4 and embedded PowerPC systems, specify that you are
       compiling for a VxWorks system.
  
! `-memb'
!      On embedded PowerPC systems, set the `PPC_EMB' bit in the ELF flags
!      header to indicate that `eabi' extended relocations are used.
  
! `-meabi'
! `-mno-eabi'
       On System V.4 and embedded PowerPC systems do (do not) adhere to
       the Embedded Applications Binary Interface (EABI), which is a set
       of modifications to the System V.4 specifications.  Selecting
!      `-meabi' means that the stack is aligned to an 8-byte boundary, a
!      function `__eabi' is called from `main' to set up the EABI
!      environment, and the `-msdata' option can use both `r2' and `r13'
!      to point to two separate small data areas.  Selecting `-mno-eabi'
       means that the stack is aligned to a 16-byte boundary, no EABI
!      initialization function is called from `main', and the `-msdata'
!      option only uses `r13' to point to a single small data area.  The
!      `-meabi' option is on by default if you configured GCC using one
!      of the `powerpc*-*-eabi*' options.
  
! `-msdata=eabi'
       On System V.4 and embedded PowerPC systems, put small initialized
!      `const' global and static data in the `.sdata2' section, which is
!      pointed to by register `r2'.  Put small initialized non-`const'
!      global and static data in the `.sdata' section, which is pointed
!      to by register `r13'.  Put small uninitialized global and static
!      data in the `.sbss' section, which is adjacent to the `.sdata'
!      section.  The `-msdata=eabi' option is incompatible with the
!      `-mrelocatable' option.  The `-msdata=eabi' option also sets the
!      `-memb' option.
  
! `-msdata=sysv'
       On System V.4 and embedded PowerPC systems, put small global and
!      static data in the `.sdata' section, which is pointed to by
!      register `r13'.  Put small uninitialized global and static data in
!      the `.sbss' section, which is adjacent to the `.sdata' section.
!      The `-msdata=sysv' option is incompatible with the `-mrelocatable'
       option.
  
! `-msdata=default'
! `-msdata'
!      On System V.4 and embedded PowerPC systems, if `-meabi' is used,
!      compile code the same as `-msdata=eabi', otherwise compile code the
!      same as `-msdata=sysv'.
  
! `-msdata=data'
       On System V.4 and embedded PowerPC systems, put small global data
!      in the `.sdata' section.  Put small uninitialized global data in
!      the `.sbss' section.  Do not use register `r13' to address small
!      data however.  This is the default behavior unless other `-msdata'
       options are used.
  
! `-msdata=none'
! `-mno-sdata'
       On embedded PowerPC systems, put all initialized global and static
!      data in the `.data' section, and all uninitialized data in the
!      `.bss' section.
  
! `-mblock-move-inline-limit=NUM'
!      Inline all block moves (such as calls to `memcpy' or structure
!      copies) less than or equal to NUM bytes.  The minimum value for
!      NUM is 32 bytes on 32-bit targets and 64 bytes on 64-bit targets.
!      The default value is target-specific.
  
! `-G NUM'
       On embedded PowerPC systems, put global and static items less than
       or equal to NUM bytes into the small data or BSS sections instead
!      of the normal data or BSS section.  By default, NUM is 8.  The `-G
       NUM' switch is also passed to the linker.  All modules should be
!      compiled with the same `-G NUM' value.
  
! `-mregnames'
! `-mno-regnames'
       On System V.4 and embedded PowerPC systems do (do not) emit
       register names in the assembly language output using symbolic
       forms.
  
! `-mlongcall'
! `-mno-longcall'
       By default assume that all calls are far away so that a longer and
       more expensive calling sequence is required.  This is required for
!      calls farther than 32 megabytes (33,554,432 bytes) from the
!      current location.  A short call is generated if the compiler knows
!      the call cannot be that far away.  This setting can be overridden
!      by the `shortcall' function attribute, or by `#pragma longcall(0)'.
  
       Some linkers are capable of detecting out-of-range calls and
       generating glue code on the fly.  On these systems, long calls are
--- 18714,19152 ----
       The AIX calling convention was extended but not initially
       documented to handle an obscure K&R C case of calling a function
       that takes the address of its arguments with fewer arguments than
!      declared.  IBM XL compilers access floating-point arguments that do
!      not fit in the RSA from the stack when a subroutine is compiled
       without optimization.  Because always storing floating-point
       arguments on the stack is inefficient and rarely needed, this
!      option is not enabled by default and only is necessary when calling
!      subroutines compiled by IBM XL compilers without optimization.
  
! '-mpe'
       Support "IBM RS/6000 SP" "Parallel Environment" (PE).  Link an
       application written to use message passing with special startup
       code to enable the application to run.  The system must have PE
!      installed in the standard location ('/usr/lpp/ppe.poe/'), or the
!      'specs' file must be overridden with the '-specs=' option to
       specify the appropriate directory location.  The Parallel
!      Environment does not support threads, so the '-mpe' option and the
!      '-pthread' option are incompatible.
  
! '-malign-natural'
! '-malign-power'
       On AIX, 32-bit Darwin, and 64-bit PowerPC GNU/Linux, the option
!      '-malign-natural' overrides the ABI-defined alignment of larger
       types, such as floating-point doubles, on their natural size-based
!      boundary.  The option '-malign-power' instructs GCC to follow the
       ABI-specified alignment rules.  GCC defaults to the standard
       alignment defined in the ABI.
  
       On 64-bit Darwin, natural alignment is the default, and
!      '-malign-power' is not supported.
  
! '-msoft-float'
! '-mhard-float'
       Generate code that does not use (uses) the floating-point register
       set.  Software floating-point emulation is provided if you use the
!      '-msoft-float' option, and pass the option to GCC when linking.
  
! '-msingle-float'
! '-mdouble-float'
       Generate code for single- or double-precision floating-point
!      operations.  '-mdouble-float' implies '-msingle-float'.
  
! '-msimple-fpu'
!      Do not generate 'sqrt' and 'div' instructions for hardware
       floating-point unit.
  
! '-mfpu=NAME'
       Specify type of floating-point unit.  Valid values for NAME are
!      'sp_lite' (equivalent to '-msingle-float -msimple-fpu'), 'dp_lite'
!      (equivalent to '-mdouble-float -msimple-fpu'), 'sp_full'
!      (equivalent to '-msingle-float'), and 'dp_full' (equivalent to
!      '-mdouble-float').
  
! '-mxilinx-fpu'
       Perform optimizations for the floating-point unit on Xilinx PPC
       405/440.
  
! '-mmultiple'
! '-mno-multiple'
       Generate code that uses (does not use) the load multiple word
       instructions and the store multiple word instructions.  These
       instructions are generated by default on POWER systems, and not
!      generated on PowerPC systems.  Do not use '-mmultiple' on
!      little-endian PowerPC systems, since those instructions do not work
!      when the processor is in little-endian mode.  The exceptions are
!      PPC740 and PPC750 which permit these instructions in little-endian
!      mode.
  
! '-mstring'
! '-mno-string'
       Generate code that uses (does not use) the load string instructions
       and the store string word instructions to save multiple registers
       and do small block moves.  These instructions are generated by
!      default on POWER systems, and not generated on PowerPC systems.  Do
!      not use '-mstring' on little-endian PowerPC systems, since those
       instructions do not work when the processor is in little-endian
       mode.  The exceptions are PPC740 and PPC750 which permit these
       instructions in little-endian mode.
  
! '-mupdate'
! '-mno-update'
       Generate code that uses (does not use) the load or store
       instructions that update the base register to the address of the
       calculated memory location.  These instructions are generated by
!      default.  If you use '-mno-update', there is a small window between
!      the time that the stack pointer is updated and the address of the
!      previous frame is stored, which means code that walks the stack
!      frame across interrupts or signals may get corrupted data.
  
! '-mavoid-indexed-addresses'
! '-mno-avoid-indexed-addresses'
       Generate code that tries to avoid (not avoid) the use of indexed
!      load or store instructions.  These instructions can incur a
       performance penalty on Power6 processors in certain situations,
       such as when stepping through large arrays that cross a 16M
       boundary.  This option is enabled by default when targeting Power6
       and disabled otherwise.
  
! '-mfused-madd'
! '-mno-fused-madd'
       Generate code that uses (does not use) the floating-point multiply
       and accumulate instructions.  These instructions are generated by
       default if hardware floating point is used.  The machine-dependent
!      '-mfused-madd' option is now mapped to the machine-independent
!      '-ffp-contract=fast' option, and '-mno-fused-madd' is mapped to
!      '-ffp-contract=off'.
  
! '-mmulhw'
! '-mno-mulhw'
       Generate code that uses (does not use) the half-word multiply and
       multiply-accumulate instructions on the IBM 405, 440, 464 and 476
       processors.  These instructions are generated by default when
       targeting those processors.
  
! '-mdlmzb'
! '-mno-dlmzb'
!      Generate code that uses (does not use) the string-search 'dlmzb'
       instruction on the IBM 405, 440, 464 and 476 processors.  This
       instruction is generated by default when targeting those
       processors.
  
! '-mno-bit-align'
! '-mbit-align'
       On System V.4 and embedded PowerPC systems do not (do) force
       structures and unions that contain bit-fields to be aligned to the
       base type of the bit-field.
  
       For example, by default a structure containing nothing but 8
!      'unsigned' bit-fields of length 1 is aligned to a 4-byte boundary
!      and has a size of 4 bytes.  By using '-mno-bit-align', the
       structure is aligned to a 1-byte boundary and is 1 byte in size.
  
! '-mno-strict-align'
! '-mstrict-align'
       On System V.4 and embedded PowerPC systems do not (do) assume that
       unaligned memory references are handled by the system.
  
! '-mrelocatable'
! '-mno-relocatable'
       Generate code that allows (does not allow) a static executable to
       be relocated to a different address at run time.  A simple embedded
       PowerPC system loader should relocate the entire contents of
!      '.got2' and 4-byte locations listed in the '.fixup' section, a
       table of 32-bit addresses generated by this option.  For this to
       work, all objects linked together must be compiled with
!      '-mrelocatable' or '-mrelocatable-lib'.  '-mrelocatable' code
       aligns the stack to an 8-byte boundary.
  
! '-mrelocatable-lib'
! '-mno-relocatable-lib'
!      Like '-mrelocatable', '-mrelocatable-lib' generates a '.fixup'
       section to allow static executables to be relocated at run time,
!      but '-mrelocatable-lib' does not use the smaller stack alignment of
!      '-mrelocatable'.  Objects compiled with '-mrelocatable-lib' may be
!      linked with objects compiled with any combination of the
!      '-mrelocatable' options.
  
! '-mno-toc'
! '-mtoc'
       On System V.4 and embedded PowerPC systems do not (do) assume that
       register 2 contains a pointer to a global area pointing to the
       addresses used in the program.
  
! '-mlittle'
! '-mlittle-endian'
       On System V.4 and embedded PowerPC systems compile code for the
!      processor in little-endian mode.  The '-mlittle-endian' option is
!      the same as '-mlittle'.
  
! '-mbig'
! '-mbig-endian'
       On System V.4 and embedded PowerPC systems compile code for the
!      processor in big-endian mode.  The '-mbig-endian' option is the
!      same as '-mbig'.
  
! '-mdynamic-no-pic'
       On Darwin and Mac OS X systems, compile code so that it is not
       relocatable, but that its external references are relocatable.  The
       resulting code is suitable for applications, but not shared
       libraries.
  
! '-msingle-pic-base'
       Treat the register used for PIC addressing as read-only, rather
       than loading it in the prologue for each function.  The runtime
       system is responsible for initializing this register with an
       appropriate value before execution begins.
  
! '-mprioritize-restricted-insns=PRIORITY'
!      This option controls the priority that is assigned to dispatch-slot
!      restricted instructions during the second scheduling pass.  The
!      argument PRIORITY takes the value '0', '1', or '2' to assign no,
!      highest, or second-highest (respectively) priority to dispatch-slot
!      restricted instructions.
  
! '-msched-costly-dep=DEPENDENCE_TYPE'
!      This option controls which dependences are considered costly by the
!      target during instruction scheduling.  The argument DEPENDENCE_TYPE
!      takes one of the following values:
  
!      'no'
            No dependence is costly.
  
!      'all'
            All dependences are costly.
  
!      'true_store_to_load'
            A true dependence from store to load is costly.
  
!      'store_to_load'
            Any dependence from store to load is costly.
  
!      NUMBER
            Any dependence for which the latency is greater than or equal
            to NUMBER is costly.
  
! '-minsert-sched-nops=SCHEME'
       This option controls which NOP insertion scheme is used during the
       second scheduling pass.  The argument SCHEME takes one of the
       following values:
  
!      'no'
            Don't insert NOPs.
  
!      'pad'
            Pad with NOPs any dispatch group that has vacant issue slots,
            according to the scheduler's grouping.
  
!      'regroup_exact'
            Insert NOPs to force costly dependent insns into separate
            groups.  Insert exactly as many NOPs as needed to force an
            insn to a new group, according to the estimated processor
            grouping.
  
!      NUMBER
            Insert NOPs to force costly dependent insns into separate
            groups.  Insert NUMBER NOPs to force an insn to a new group.
  
! '-mcall-sysv'
       On System V.4 and embedded PowerPC systems compile code using
       calling conventions that adhere to the March 1995 draft of the
       System V Application Binary Interface, PowerPC processor
       supplement.  This is the default unless you configured GCC using
!      'powerpc-*-eabiaix'.
  
! '-mcall-sysv-eabi'
! '-mcall-eabi'
!      Specify both '-mcall-sysv' and '-meabi' options.
  
! '-mcall-sysv-noeabi'
!      Specify both '-mcall-sysv' and '-mno-eabi' options.
  
! '-mcall-aixdesc'
       On System V.4 and embedded PowerPC systems compile code for the AIX
       operating system.
  
! '-mcall-linux'
       On System V.4 and embedded PowerPC systems compile code for the
       Linux-based GNU system.
  
! '-mcall-freebsd'
       On System V.4 and embedded PowerPC systems compile code for the
       FreeBSD operating system.
  
! '-mcall-netbsd'
       On System V.4 and embedded PowerPC systems compile code for the
       NetBSD operating system.
  
! '-mcall-openbsd'
       On System V.4 and embedded PowerPC systems compile code for the
       OpenBSD operating system.
  
! '-maix-struct-return'
       Return all structures in memory (as specified by the AIX ABI).
  
! '-msvr4-struct-return'
       Return structures smaller than 8 bytes in registers (as specified
       by the SVR4 ABI).
  
! '-mabi=ABI-TYPE'
       Extend the current ABI with a particular extension, or remove such
!      extension.  Valid values are 'altivec', 'no-altivec', 'spe',
!      'no-spe', 'ibmlongdouble', 'ieeelongdouble', 'elfv1', 'elfv2'.
  
! '-mabi=spe'
       Extend the current ABI with SPE ABI extensions.  This does not
       change the default ABI, instead it adds the SPE ABI extensions to
       the current ABI.
  
! '-mabi=no-spe'
       Disable Book-E SPE ABI extensions for the current ABI.
  
! '-mabi=ibmlongdouble'
       Change the current ABI to use IBM extended-precision long double.
       This is a PowerPC 32-bit SYSV ABI option.
  
! '-mabi=ieeelongdouble'
       Change the current ABI to use IEEE extended-precision long double.
       This is a PowerPC 32-bit Linux ABI option.
  
! '-mabi=elfv1'
!      Change the current ABI to use the ELFv1 ABI. This is the default
       ABI for big-endian PowerPC 64-bit Linux.  Overriding the default
       ABI requires special system support and is likely to fail in
       spectacular ways.
  
! '-mabi=elfv2'
!      Change the current ABI to use the ELFv2 ABI. This is the default
!      ABI for little-endian PowerPC 64-bit Linux.  Overriding the default
!      ABI requires special system support and is likely to fail in
!      spectacular ways.
  
! '-mprototype'
! '-mno-prototype'
       On System V.4 and embedded PowerPC systems assume that all calls to
       variable argument functions are properly prototyped.  Otherwise,
!      the compiler must insert an instruction before every non-prototyped
!      call to set or clear bit 6 of the condition code register ('CR') to
!      indicate whether floating-point values are passed in the
!      floating-point registers in case the function takes variable
!      arguments.  With '-mprototype', only calls to prototyped variable
!      argument functions set or clear the bit.
  
! '-msim'
       On embedded PowerPC systems, assume that the startup module is
!      called 'sim-crt0.o' and that the standard C libraries are
!      'libsim.a' and 'libc.a'.  This is the default for
!      'powerpc-*-eabisim' configurations.
  
! '-mmvme'
       On embedded PowerPC systems, assume that the startup module is
!      called 'crt0.o' and the standard C libraries are 'libmvme.a' and
!      'libc.a'.
  
! '-mads'
       On embedded PowerPC systems, assume that the startup module is
!      called 'crt0.o' and the standard C libraries are 'libads.a' and
!      'libc.a'.
  
! '-myellowknife'
       On embedded PowerPC systems, assume that the startup module is
!      called 'crt0.o' and the standard C libraries are 'libyk.a' and
!      'libc.a'.
  
! '-mvxworks'
       On System V.4 and embedded PowerPC systems, specify that you are
       compiling for a VxWorks system.
  
! '-memb'
!      On embedded PowerPC systems, set the 'PPC_EMB' bit in the ELF flags
!      header to indicate that 'eabi' extended relocations are used.
  
! '-meabi'
! '-mno-eabi'
       On System V.4 and embedded PowerPC systems do (do not) adhere to
       the Embedded Applications Binary Interface (EABI), which is a set
       of modifications to the System V.4 specifications.  Selecting
!      '-meabi' means that the stack is aligned to an 8-byte boundary, a
!      function '__eabi' is called from 'main' to set up the EABI
!      environment, and the '-msdata' option can use both 'r2' and 'r13'
!      to point to two separate small data areas.  Selecting '-mno-eabi'
       means that the stack is aligned to a 16-byte boundary, no EABI
!      initialization function is called from 'main', and the '-msdata'
!      option only uses 'r13' to point to a single small data area.  The
!      '-meabi' option is on by default if you configured GCC using one of
!      the 'powerpc*-*-eabi*' options.
  
! '-msdata=eabi'
       On System V.4 and embedded PowerPC systems, put small initialized
!      'const' global and static data in the '.sdata2' section, which is
!      pointed to by register 'r2'.  Put small initialized non-'const'
!      global and static data in the '.sdata' section, which is pointed to
!      by register 'r13'.  Put small uninitialized global and static data
!      in the '.sbss' section, which is adjacent to the '.sdata' section.
!      The '-msdata=eabi' option is incompatible with the '-mrelocatable'
!      option.  The '-msdata=eabi' option also sets the '-memb' option.
  
! '-msdata=sysv'
       On System V.4 and embedded PowerPC systems, put small global and
!      static data in the '.sdata' section, which is pointed to by
!      register 'r13'.  Put small uninitialized global and static data in
!      the '.sbss' section, which is adjacent to the '.sdata' section.
!      The '-msdata=sysv' option is incompatible with the '-mrelocatable'
       option.
  
! '-msdata=default'
! '-msdata'
!      On System V.4 and embedded PowerPC systems, if '-meabi' is used,
!      compile code the same as '-msdata=eabi', otherwise compile code the
!      same as '-msdata=sysv'.
  
! '-msdata=data'
       On System V.4 and embedded PowerPC systems, put small global data
!      in the '.sdata' section.  Put small uninitialized global data in
!      the '.sbss' section.  Do not use register 'r13' to address small
!      data however.  This is the default behavior unless other '-msdata'
       options are used.
  
! '-msdata=none'
! '-mno-sdata'
       On embedded PowerPC systems, put all initialized global and static
!      data in the '.data' section, and all uninitialized data in the
!      '.bss' section.
  
! '-mreadonly-in-sdata'
! '-mreadonly-in-sdata'
!      Put read-only objects in the '.sdata' section as well.  This is the
!      default.
  
! '-mblock-move-inline-limit=NUM'
!      Inline all block moves (such as calls to 'memcpy' or structure
!      copies) less than or equal to NUM bytes.  The minimum value for NUM
!      is 32 bytes on 32-bit targets and 64 bytes on 64-bit targets.  The
!      default value is target-specific.
! 
! '-G NUM'
       On embedded PowerPC systems, put global and static items less than
       or equal to NUM bytes into the small data or BSS sections instead
!      of the normal data or BSS section.  By default, NUM is 8.  The '-G
       NUM' switch is also passed to the linker.  All modules should be
!      compiled with the same '-G NUM' value.
  
! '-mregnames'
! '-mno-regnames'
       On System V.4 and embedded PowerPC systems do (do not) emit
       register names in the assembly language output using symbolic
       forms.
  
! '-mlongcall'
! '-mno-longcall'
       By default assume that all calls are far away so that a longer and
       more expensive calling sequence is required.  This is required for
!      calls farther than 32 megabytes (33,554,432 bytes) from the current
!      location.  A short call is generated if the compiler knows the call
!      cannot be that far away.  This setting can be overridden by the
!      'shortcall' function attribute, or by '#pragma longcall(0)'.
  
       Some linkers are capable of detecting out-of-range calls and
       generating glue code on the fly.  On these systems, long calls are
*************** These `-m' options are defined for the I
*** 19255,19269 ****
       planned to add this feature to the GNU linker for 32-bit PowerPC
       systems as well.
  
!      On Darwin/PPC systems, `#pragma longcall' generates `jbsr callee,
!      L42', plus a "branch island" (glue code).  The two target
!      addresses represent the callee and the branch island.  The
!      Darwin/PPC linker prefers the first address and generates a `bl
!      callee' if the PPC `bl' instruction reaches the callee directly;
!      otherwise, the linker generates `bl L42' to call the branch
!      island.  The branch island is appended to the body of the calling
!      function; it computes the full 32-bit address of the callee and
!      jumps to it.
  
       On Mach-O (Darwin) systems, this option directs the compiler emit
       to the glue for every direct call, and the Darwin linker decides
--- 19155,19168 ----
       planned to add this feature to the GNU linker for 32-bit PowerPC
       systems as well.
  
!      On Darwin/PPC systems, '#pragma longcall' generates 'jbsr callee,
!      L42', plus a "branch island" (glue code).  The two target addresses
!      represent the callee and the branch island.  The Darwin/PPC linker
!      prefers the first address and generates a 'bl callee' if the PPC
!      'bl' instruction reaches the callee directly; otherwise, the linker
!      generates 'bl L42' to call the branch island.  The branch island is
!      appended to the body of the calling function; it computes the full
!      32-bit address of the callee and jumps to it.
  
       On Mach-O (Darwin) systems, this option directs the compiler emit
       to the glue for every direct call, and the Darwin linker decides
*************** These `-m' options are defined for the I
*** 19272,19406 ****
       In the future, GCC may ignore all longcall specifications when the
       linker is known to generate glue.
  
! `-mtls-markers'
! `-mno-tls-markers'
!      Mark (do not mark) calls to `__tls_get_addr' with a relocation
!      specifying the function argument.  The relocation allows the
!      linker to reliably associate function call with argument setup
       instructions for TLS optimization, which in turn allows GCC to
       better schedule the sequence.
  
! `-pthread'
       Adds support for multithreading with the "pthreads" library.  This
       option sets flags for both the preprocessor and linker.
  
! `-mrecip'
! `-mno-recip'
       This option enables use of the reciprocal estimate and reciprocal
       square root estimate instructions with additional Newton-Raphson
       steps to increase precision instead of doing a divide or square
       root and divide for floating-point arguments.  You should use the
!      `-ffast-math' option when using `-mrecip' (or at least
!      `-funsafe-math-optimizations', `-ffinite-math-only',
!      `-freciprocal-math' and `-fno-trapping-math').  Note that while
!      the throughput of the sequence is generally higher than the
!      throughput of the non-reciprocal instruction, the precision of the
!      sequence can be decreased by up to 2 ulp (i.e. the inverse of 1.0
!      equals 0.99999994) for reciprocal square roots.
  
! `-mrecip=OPT'
       This option controls which reciprocal estimate instructions may be
       used.  OPT is a comma-separated list of options, which may be
!      preceded by a `!' to invert the option:
  
!     `all'
            Enable all estimate instructions.
  
!     `default'
!           Enable the default instructions, equivalent to `-mrecip'.
  
!     `none'
!           Disable all estimate instructions, equivalent to `-mno-recip'.
  
!     `div'
            Enable the reciprocal approximation instructions for both
            single and double precision.
  
!     `divf'
            Enable the single-precision reciprocal approximation
            instructions.
  
!     `divd'
            Enable the double-precision reciprocal approximation
            instructions.
  
!     `rsqrt'
            Enable the reciprocal square root approximation instructions
            for both single and double precision.
  
!     `rsqrtf'
            Enable the single-precision reciprocal square root
            approximation instructions.
  
!     `rsqrtd'
            Enable the double-precision reciprocal square root
            approximation instructions.
  
! 
!      So, for example, `-mrecip=all,!rsqrtd' enables all of the
!      reciprocal estimate instructions, except for the `FRSQRTE',
!      `XSRSQRTEDP', and `XVRSQRTEDP' instructions which handle the
       double-precision reciprocal square root calculations.
  
! `-mrecip-precision'
! `-mno-recip-precision'
       Assume (do not assume) that the reciprocal estimate instructions
       provide higher-precision estimates than is mandated by the PowerPC
!      ABI.  Selecting `-mcpu=power6', `-mcpu=power7' or `-mcpu=power8'
!      automatically selects `-mrecip-precision'.  The double-precision
       square root estimate instructions are not generated by default on
       low-precision machines, since they do not provide an estimate that
       converges after three steps.
  
! `-mveclibabi=TYPE'
       Specifies the ABI type to use for vectorizing intrinsics using an
!      external library.  The only type supported at present is `mass',
       which specifies to use IBM's Mathematical Acceleration Subsystem
       (MASS) libraries for vectorizing intrinsics using external
!      libraries.  GCC currently emits calls to `acosd2', `acosf4',
!      `acoshd2', `acoshf4', `asind2', `asinf4', `asinhd2', `asinhf4',
!      `atan2d2', `atan2f4', `atand2', `atanf4', `atanhd2', `atanhf4',
!      `cbrtd2', `cbrtf4', `cosd2', `cosf4', `coshd2', `coshf4',
!      `erfcd2', `erfcf4', `erfd2', `erff4', `exp2d2', `exp2f4', `expd2',
!      `expf4', `expm1d2', `expm1f4', `hypotd2', `hypotf4', `lgammad2',
!      `lgammaf4', `log10d2', `log10f4', `log1pd2', `log1pf4', `log2d2',
!      `log2f4', `logd2', `logf4', `powd2', `powf4', `sind2', `sinf4',
!      `sinhd2', `sinhf4', `sqrtd2', `sqrtf4', `tand2', `tanf4',
!      `tanhd2', and `tanhf4' when generating code for power7.  Both
!      `-ftree-vectorize' and `-funsafe-math-optimizations' must also be
!      enabled.  The MASS libraries must be specified at link time.
  
! `-mfriz'
! `-mno-friz'
!      Generate (do not generate) the `friz' instruction when the
!      `-funsafe-math-optimizations' option is used to optimize rounding
       of floating-point values to 64-bit integer and back to floating
!      point.  The `friz' instruction does not return the same value if
       the floating-point number is too large to fit in an integer.
  
! `-mpointers-to-nested-functions'
! `-mno-pointers-to-nested-functions'
       Generate (do not generate) code to load up the static chain
!      register (`r11') when calling through a pointer on AIX and 64-bit
       Linux systems where a function pointer points to a 3-word
       descriptor giving the function address, TOC value to be loaded in
!      register `r2', and static chain value to be loaded in register
!      `r11'.  The `-mpointers-to-nested-functions' is on by default.
!      You cannot call through pointers to nested functions or pointers
!      to functions compiled in other languages that use the static chain
!      if you use `-mno-pointers-to-nested-functions'.
  
! `-msave-toc-indirect'
! `-mno-save-toc-indirect'
       Generate (do not generate) code to save the TOC value in the
       reserved stack location in the function prologue if the function
       calls through a pointer on AIX and 64-bit Linux systems.  If the
!      TOC value is not saved in the prologue, it is saved just before
!      the call through the pointer.  The `-mno-save-toc-indirect' option
!      is the default.
  
! `-mcompat-align-parm'
! `-mno-compat-align-parm'
       Generate (do not generate) code to pass structure parameters with a
       maximum alignment of 64 bits, for compatibility with older versions
       of GCC.
--- 19171,19304 ----
       In the future, GCC may ignore all longcall specifications when the
       linker is known to generate glue.
  
! '-mtls-markers'
! '-mno-tls-markers'
!      Mark (do not mark) calls to '__tls_get_addr' with a relocation
!      specifying the function argument.  The relocation allows the linker
!      to reliably associate function call with argument setup
       instructions for TLS optimization, which in turn allows GCC to
       better schedule the sequence.
  
! '-pthread'
       Adds support for multithreading with the "pthreads" library.  This
       option sets flags for both the preprocessor and linker.
  
! '-mrecip'
! '-mno-recip'
       This option enables use of the reciprocal estimate and reciprocal
       square root estimate instructions with additional Newton-Raphson
       steps to increase precision instead of doing a divide or square
       root and divide for floating-point arguments.  You should use the
!      '-ffast-math' option when using '-mrecip' (or at least
!      '-funsafe-math-optimizations', '-ffinite-math-only',
!      '-freciprocal-math' and '-fno-trapping-math').  Note that while the
!      throughput of the sequence is generally higher than the throughput
!      of the non-reciprocal instruction, the precision of the sequence
!      can be decreased by up to 2 ulp (i.e. the inverse of 1.0 equals
!      0.99999994) for reciprocal square roots.
  
! '-mrecip=OPT'
       This option controls which reciprocal estimate instructions may be
       used.  OPT is a comma-separated list of options, which may be
!      preceded by a '!' to invert the option:
  
!      'all'
            Enable all estimate instructions.
  
!      'default'
!           Enable the default instructions, equivalent to '-mrecip'.
  
!      'none'
!           Disable all estimate instructions, equivalent to '-mno-recip'.
  
!      'div'
            Enable the reciprocal approximation instructions for both
            single and double precision.
  
!      'divf'
            Enable the single-precision reciprocal approximation
            instructions.
  
!      'divd'
            Enable the double-precision reciprocal approximation
            instructions.
  
!      'rsqrt'
            Enable the reciprocal square root approximation instructions
            for both single and double precision.
  
!      'rsqrtf'
            Enable the single-precision reciprocal square root
            approximation instructions.
  
!      'rsqrtd'
            Enable the double-precision reciprocal square root
            approximation instructions.
  
!      So, for example, '-mrecip=all,!rsqrtd' enables all of the
!      reciprocal estimate instructions, except for the 'FRSQRTE',
!      'XSRSQRTEDP', and 'XVRSQRTEDP' instructions which handle the
       double-precision reciprocal square root calculations.
  
! '-mrecip-precision'
! '-mno-recip-precision'
       Assume (do not assume) that the reciprocal estimate instructions
       provide higher-precision estimates than is mandated by the PowerPC
!      ABI. Selecting '-mcpu=power6', '-mcpu=power7' or '-mcpu=power8'
!      automatically selects '-mrecip-precision'.  The double-precision
       square root estimate instructions are not generated by default on
       low-precision machines, since they do not provide an estimate that
       converges after three steps.
  
! '-mveclibabi=TYPE'
       Specifies the ABI type to use for vectorizing intrinsics using an
!      external library.  The only type supported at present is 'mass',
       which specifies to use IBM's Mathematical Acceleration Subsystem
       (MASS) libraries for vectorizing intrinsics using external
!      libraries.  GCC currently emits calls to 'acosd2', 'acosf4',
!      'acoshd2', 'acoshf4', 'asind2', 'asinf4', 'asinhd2', 'asinhf4',
!      'atan2d2', 'atan2f4', 'atand2', 'atanf4', 'atanhd2', 'atanhf4',
!      'cbrtd2', 'cbrtf4', 'cosd2', 'cosf4', 'coshd2', 'coshf4', 'erfcd2',
!      'erfcf4', 'erfd2', 'erff4', 'exp2d2', 'exp2f4', 'expd2', 'expf4',
!      'expm1d2', 'expm1f4', 'hypotd2', 'hypotf4', 'lgammad2', 'lgammaf4',
!      'log10d2', 'log10f4', 'log1pd2', 'log1pf4', 'log2d2', 'log2f4',
!      'logd2', 'logf4', 'powd2', 'powf4', 'sind2', 'sinf4', 'sinhd2',
!      'sinhf4', 'sqrtd2', 'sqrtf4', 'tand2', 'tanf4', 'tanhd2', and
!      'tanhf4' when generating code for power7.  Both '-ftree-vectorize'
!      and '-funsafe-math-optimizations' must also be enabled.  The MASS
!      libraries must be specified at link time.
  
! '-mfriz'
! '-mno-friz'
!      Generate (do not generate) the 'friz' instruction when the
!      '-funsafe-math-optimizations' option is used to optimize rounding
       of floating-point values to 64-bit integer and back to floating
!      point.  The 'friz' instruction does not return the same value if
       the floating-point number is too large to fit in an integer.
  
! '-mpointers-to-nested-functions'
! '-mno-pointers-to-nested-functions'
       Generate (do not generate) code to load up the static chain
!      register ('r11') when calling through a pointer on AIX and 64-bit
       Linux systems where a function pointer points to a 3-word
       descriptor giving the function address, TOC value to be loaded in
!      register 'r2', and static chain value to be loaded in register
!      'r11'.  The '-mpointers-to-nested-functions' is on by default.  You
!      cannot call through pointers to nested functions or pointers to
!      functions compiled in other languages that use the static chain if
!      you use '-mno-pointers-to-nested-functions'.
  
! '-msave-toc-indirect'
! '-mno-save-toc-indirect'
       Generate (do not generate) code to save the TOC value in the
       reserved stack location in the function prologue if the function
       calls through a pointer on AIX and 64-bit Linux systems.  If the
!      TOC value is not saved in the prologue, it is saved just before the
!      call through the pointer.  The '-mno-save-toc-indirect' option is
!      the default.
  
! '-mcompat-align-parm'
! '-mno-compat-align-parm'
       Generate (do not generate) code to pass structure parameters with a
       maximum alignment of 64 bits, for compatibility with older versions
       of GCC.
*************** These `-m' options are defined for the I
*** 19408,19418 ****
       Older versions of GCC (prior to 4.9.0) incorrectly did not align a
       structure parameter on a 128-bit boundary when that structure
       contained a member requiring 128-bit alignment.  This is corrected
!      in more recent versions of GCC.  This option may be used to
!      generate code that is compatible with functions compiled with
!      older versions of GCC.
  
!      The `-mno-compat-align-parm' option is the default.
  
  
  File: gcc.info,  Node: RX Options,  Next: S/390 and zSeries Options,  Prev: RS/6000 and PowerPC Options,  Up: Submodel Options
--- 19306,19316 ----
       Older versions of GCC (prior to 4.9.0) incorrectly did not align a
       structure parameter on a 128-bit boundary when that structure
       contained a member requiring 128-bit alignment.  This is corrected
!      in more recent versions of GCC. This option may be used to generate
!      code that is compatible with functions compiled with older versions
!      of GCC.
  
!      The '-mno-compat-align-parm' option is the default.
  
  
  File: gcc.info,  Node: RX Options,  Next: S/390 and zSeries Options,  Prev: RS/6000 and PowerPC Options,  Up: Submodel Options
*************** File: gcc.info,  Node: RX Options,  Next
*** 19422,19472 ****
  
  These command-line options are defined for RX targets:
  
! `-m64bit-doubles'
! `-m32bit-doubles'
!      Make the `double' data type be 64 bits (`-m64bit-doubles') or 32
!      bits (`-m32bit-doubles') in size.  The default is
!      `-m32bit-doubles'.  _Note_ RX floating-point hardware only works
!      on 32-bit values, which is why the default is `-m32bit-doubles'.
  
! `-fpu'
! `-nofpu'
!      Enables (`-fpu') or disables (`-nofpu') the use of RX
       floating-point hardware.  The default is enabled for the RX600
       series and disabled for the RX200 series.
  
       Floating-point instructions are only generated for 32-bit
!      floating-point values, however, so the FPU hardware is not used
!      for doubles if the `-m64bit-doubles' option is used.
  
!      _Note_ If the `-fpu' option is enabled then
!      `-funsafe-math-optimizations' is also enabled automatically.  This
       is because the RX FPU instructions are themselves unsafe.
  
! `-mcpu=NAME'
       Selects the type of RX CPU to be targeted.  Currently three types
!      are supported, the generic `RX600' and `RX200' series hardware and
!      the specific `RX610' CPU.  The default is `RX600'.
  
!      The only difference between `RX600' and `RX610' is that the
!      `RX610' does not support the `MVTIPL' instruction.
  
!      The `RX200' series does not have a hardware floating-point unit
!      and so `-nofpu' is enabled by default when this type is selected.
  
! `-mbig-endian-data'
! `-mlittle-endian-data'
       Store data (but not code) in the big-endian format.  The default is
!      `-mlittle-endian-data', i.e. to store data in the little-endian
       format.
  
! `-msmall-data-limit=N'
       Specifies the maximum size in bytes of global and static variables
       which can be placed into the small data area.  Using the small data
       area can lead to smaller and faster code, but the size of area is
       limited and it is up to the programmer to ensure that the area does
       not overflow.  Also when the small data area is used one of the
!      RX's registers (usually `r13') is reserved for use pointing to this
       area, so it is no longer available for use by the compiler.  This
       could result in slower and/or larger code if variables are pushed
       onto the stack instead of being held in this register.
--- 19320,19370 ----
  
  These command-line options are defined for RX targets:
  
! '-m64bit-doubles'
! '-m32bit-doubles'
!      Make the 'double' data type be 64 bits ('-m64bit-doubles') or 32
!      bits ('-m32bit-doubles') in size.  The default is
!      '-m32bit-doubles'.  _Note_ RX floating-point hardware only works on
!      32-bit values, which is why the default is '-m32bit-doubles'.
  
! '-fpu'
! '-nofpu'
!      Enables ('-fpu') or disables ('-nofpu') the use of RX
       floating-point hardware.  The default is enabled for the RX600
       series and disabled for the RX200 series.
  
       Floating-point instructions are only generated for 32-bit
!      floating-point values, however, so the FPU hardware is not used for
!      doubles if the '-m64bit-doubles' option is used.
  
!      _Note_ If the '-fpu' option is enabled then
!      '-funsafe-math-optimizations' is also enabled automatically.  This
       is because the RX FPU instructions are themselves unsafe.
  
! '-mcpu=NAME'
       Selects the type of RX CPU to be targeted.  Currently three types
!      are supported, the generic 'RX600' and 'RX200' series hardware and
!      the specific 'RX610' CPU. The default is 'RX600'.
  
!      The only difference between 'RX600' and 'RX610' is that the 'RX610'
!      does not support the 'MVTIPL' instruction.
  
!      The 'RX200' series does not have a hardware floating-point unit and
!      so '-nofpu' is enabled by default when this type is selected.
  
! '-mbig-endian-data'
! '-mlittle-endian-data'
       Store data (but not code) in the big-endian format.  The default is
!      '-mlittle-endian-data', i.e. to store data in the little-endian
       format.
  
! '-msmall-data-limit=N'
       Specifies the maximum size in bytes of global and static variables
       which can be placed into the small data area.  Using the small data
       area can lead to smaller and faster code, but the size of area is
       limited and it is up to the programmer to ensure that the area does
       not overflow.  Also when the small data area is used one of the
!      RX's registers (usually 'r13') is reserved for use pointing to this
       area, so it is no longer available for use by the compiler.  This
       could result in slower and/or larger code if variables are pushed
       onto the stack instead of being held in this register.
*************** These command-line options are defined f
*** 19477,19501 ****
  
       The default value is zero, which disables this feature.  Note, this
       feature is not enabled by default with higher optimization levels
!      (`-O2' etc) because of the potentially detrimental effects of
       reserving a register.  It is up to the programmer to experiment and
       discover whether this feature is of benefit to their program.  See
!      the description of the `-mpid' option for a description of how the
       actual register to hold the small data area pointer is chosen.
  
! `-msim'
! `-mno-sim'
       Use the simulator runtime.  The default is to use the libgloss
       board-specific runtime.
  
! `-mas100-syntax'
! `-mno-as100-syntax'
       When generating assembler output use a syntax that is compatible
!      with Renesas's AS100 assembler.  This syntax can also be handled
!      by the GAS assembler, but it has some restrictions so it is not
       generated by default.
  
! `-mmax-constant-size=N'
       Specifies the maximum size, in bytes, of a constant that can be
       used as an operand in a RX instruction.  Although the RX
       instruction set does allow constants of up to 4 bytes in length to
--- 19375,19399 ----
  
       The default value is zero, which disables this feature.  Note, this
       feature is not enabled by default with higher optimization levels
!      ('-O2' etc) because of the potentially detrimental effects of
       reserving a register.  It is up to the programmer to experiment and
       discover whether this feature is of benefit to their program.  See
!      the description of the '-mpid' option for a description of how the
       actual register to hold the small data area pointer is chosen.
  
! '-msim'
! '-mno-sim'
       Use the simulator runtime.  The default is to use the libgloss
       board-specific runtime.
  
! '-mas100-syntax'
! '-mno-as100-syntax'
       When generating assembler output use a syntax that is compatible
!      with Renesas's AS100 assembler.  This syntax can also be handled by
!      the GAS assembler, but it has some restrictions so it is not
       generated by default.
  
! '-mmax-constant-size=N'
       Specifies the maximum size, in bytes, of a constant that can be
       used as an operand in a RX instruction.  Although the RX
       instruction set does allow constants of up to 4 bytes in length to
*************** These command-line options are defined f
*** 19508,19536 ****
       The value N can be between 0 and 4.  A value of 0 (the default) or
       4 means that constants of any size are allowed.
  
! `-mrelax'
       Enable linker relaxation.  Linker relaxation is a process whereby
       the linker attempts to reduce the size of a program by finding
       shorter versions of various instructions.  Disabled by default.
  
! `-mint-register=N'
       Specify the number of registers to reserve for fast interrupt
!      handler functions.  The value N can be between 0 and 4.  A value
!      of 1 means that register `r13' is reserved for the exclusive use
!      of fast interrupt handlers.  A value of 2 reserves `r13' and
!      `r12'.  A value of 3 reserves `r13', `r12' and `r11', and a value
!      of 4 reserves `r13' through `r10'.  A value of 0, the default,
!      does not reserve any registers.
  
! `-msave-acc-in-interrupts'
       Specifies that interrupt handler functions should preserve the
       accumulator register.  This is only necessary if normal code might
       use the accumulator register, for example because it performs
       64-bit multiplications.  The default is to ignore the accumulator
       as this makes the interrupt handlers faster.
  
! `-mpid'
! `-mno-pid'
       Enables the generation of position independent data.  When enabled
       any access to constant data is done via an offset from a base
       address held in a register.  This allows the location of constant
--- 19406,19434 ----
       The value N can be between 0 and 4.  A value of 0 (the default) or
       4 means that constants of any size are allowed.
  
! '-mrelax'
       Enable linker relaxation.  Linker relaxation is a process whereby
       the linker attempts to reduce the size of a program by finding
       shorter versions of various instructions.  Disabled by default.
  
! '-mint-register=N'
       Specify the number of registers to reserve for fast interrupt
!      handler functions.  The value N can be between 0 and 4.  A value of
!      1 means that register 'r13' is reserved for the exclusive use of
!      fast interrupt handlers.  A value of 2 reserves 'r13' and 'r12'.  A
!      value of 3 reserves 'r13', 'r12' and 'r11', and a value of 4
!      reserves 'r13' through 'r10'.  A value of 0, the default, does not
!      reserve any registers.
  
! '-msave-acc-in-interrupts'
       Specifies that interrupt handler functions should preserve the
       accumulator register.  This is only necessary if normal code might
       use the accumulator register, for example because it performs
       64-bit multiplications.  The default is to ignore the accumulator
       as this makes the interrupt handlers faster.
  
! '-mpid'
! '-mno-pid'
       Enables the generation of position independent data.  When enabled
       any access to constant data is done via an offset from a base
       address held in a register.  This allows the location of constant
*************** These command-line options are defined f
*** 19539,19600 ****
       tight memory constraints.  Data that can be modified is not
       affected by this option.
  
!      Note, using this feature reserves a register, usually `r13', for
       the constant data base address.  This can result in slower and/or
       larger code, especially in complicated functions.
  
       The actual register chosen to hold the constant data base address
!      depends upon whether the `-msmall-data-limit' and/or the
!      `-mint-register' command-line options are enabled.  Starting with
!      register `r13' and proceeding downwards, registers are allocated
!      first to satisfy the requirements of `-mint-register', then
!      `-mpid' and finally `-msmall-data-limit'.  Thus it is possible for
!      the small data area register to be `r8' if both `-mint-register=4'
!      and `-mpid' are specified on the command line.
  
       By default this feature is not enabled.  The default can be
!      restored via the `-mno-pid' command-line option.
  
! `-mno-warn-multiple-fast-interrupts'
! `-mwarn-multiple-fast-interrupts'
       Prevents GCC from issuing a warning message if it finds more than
       one fast interrupt handler when it is compiling a file.  The
!      default is to issue a warning for each extra fast interrupt
!      handler found, as the RX only supports one such interrupt.
  
! `-mallow-string-insns'
! `-mno-allow-string-insns'
       Enables or disables the use of the string manipulation instructions
!      `SMOVF', `SCMPU', `SMOVB', `SMOVU', `SUNTIL' `SWHILE' and also the
!      `RMPA' instruction.  These instructions may prefetch data, which
!      is not safe to do if accessing an I/O register.  (See section
!      12.2.7 of the RX62N Group User's Manual for more information).
  
       The default is to allow these instructions, but it is not possible
       for GCC to reliably detect all circumstances where a string
       instruction might be used to access an I/O register, so their use
       cannot be disabled automatically.  Instead it is reliant upon the
!      programmer to use the `-mno-allow-string-insns' option if their
       program accesses I/O space.
  
       When the instructions are enabled GCC defines the C preprocessor
!      symbol `__RX_ALLOW_STRING_INSNS__', otherwise it defines the
!      symbol `__RX_DISALLOW_STRING_INSNS__'.
  
! `-mjsr'
! `-mno-jsr'
!      Use only (or not only) `JSR' instructions to access functions.
!      This option can be used when code size exceeds the range of `BSR'
!      instructions.  Note that `-mno-jsr' does not mean to not use `JSR'
       but instead means that any type of branch may be used.
  
!  _Note:_ The generic GCC command-line option `-ffixed-REG' has special
! significance to the RX port when used with the `interrupt' function
! attribute.  This attribute indicates a function intended to process
! fast interrupts.  GCC ensures that it only uses the registers `r10',
! `r11', `r12' and/or `r13' and only provided that the normal use of the
! corresponding registers have been restricted via the `-ffixed-REG' or
! `-mint-register' command-line options.
  
  
  File: gcc.info,  Node: S/390 and zSeries Options,  Next: Score Options,  Prev: RX Options,  Up: Submodel Options
--- 19437,19498 ----
       tight memory constraints.  Data that can be modified is not
       affected by this option.
  
!      Note, using this feature reserves a register, usually 'r13', for
       the constant data base address.  This can result in slower and/or
       larger code, especially in complicated functions.
  
       The actual register chosen to hold the constant data base address
!      depends upon whether the '-msmall-data-limit' and/or the
!      '-mint-register' command-line options are enabled.  Starting with
!      register 'r13' and proceeding downwards, registers are allocated
!      first to satisfy the requirements of '-mint-register', then '-mpid'
!      and finally '-msmall-data-limit'.  Thus it is possible for the
!      small data area register to be 'r8' if both '-mint-register=4' and
!      '-mpid' are specified on the command line.
  
       By default this feature is not enabled.  The default can be
!      restored via the '-mno-pid' command-line option.
  
! '-mno-warn-multiple-fast-interrupts'
! '-mwarn-multiple-fast-interrupts'
       Prevents GCC from issuing a warning message if it finds more than
       one fast interrupt handler when it is compiling a file.  The
!      default is to issue a warning for each extra fast interrupt handler
!      found, as the RX only supports one such interrupt.
  
! '-mallow-string-insns'
! '-mno-allow-string-insns'
       Enables or disables the use of the string manipulation instructions
!      'SMOVF', 'SCMPU', 'SMOVB', 'SMOVU', 'SUNTIL' 'SWHILE' and also the
!      'RMPA' instruction.  These instructions may prefetch data, which is
!      not safe to do if accessing an I/O register.  (See section 12.2.7
!      of the RX62N Group User's Manual for more information).
  
       The default is to allow these instructions, but it is not possible
       for GCC to reliably detect all circumstances where a string
       instruction might be used to access an I/O register, so their use
       cannot be disabled automatically.  Instead it is reliant upon the
!      programmer to use the '-mno-allow-string-insns' option if their
       program accesses I/O space.
  
       When the instructions are enabled GCC defines the C preprocessor
!      symbol '__RX_ALLOW_STRING_INSNS__', otherwise it defines the symbol
!      '__RX_DISALLOW_STRING_INSNS__'.
  
! '-mjsr'
! '-mno-jsr'
!      Use only (or not only) 'JSR' instructions to access functions.
!      This option can be used when code size exceeds the range of 'BSR'
!      instructions.  Note that '-mno-jsr' does not mean to not use 'JSR'
       but instead means that any type of branch may be used.
  
!  _Note:_ The generic GCC command-line option '-ffixed-REG' has special
! significance to the RX port when used with the 'interrupt' function
! attribute.  This attribute indicates a function intended to process fast
! interrupts.  GCC ensures that it only uses the registers 'r10', 'r11',
! 'r12' and/or 'r13' and only provided that the normal use of the
! corresponding registers have been restricted via the '-ffixed-REG' or
! '-mint-register' command-line options.
  
  
  File: gcc.info,  Node: S/390 and zSeries Options,  Next: Score Options,  Prev: RX Options,  Up: Submodel Options
*************** File: gcc.info,  Node: S/390 and zSeries
*** 19602,19818 ****
  3.18.40 S/390 and zSeries Options
  ---------------------------------
  
! These are the `-m' options defined for the S/390 and zSeries
  architecture.
  
! `-mhard-float'
! `-msoft-float'
       Use (do not use) the hardware floating-point instructions and
!      registers for floating-point operations.  When `-msoft-float' is
!      specified, functions in `libgcc.a' are used to perform
!      floating-point operations.  When `-mhard-float' is specified, the
       compiler generates IEEE floating-point instructions.  This is the
       default.
  
! `-mhard-dfp'
! `-mno-hard-dfp'
       Use (do not use) the hardware decimal-floating-point instructions
!      for decimal-floating-point operations.  When `-mno-hard-dfp' is
!      specified, functions in `libgcc.a' are used to perform
!      decimal-floating-point operations.  When `-mhard-dfp' is
!      specified, the compiler generates decimal-floating-point hardware
!      instructions.  This is the default for `-march=z9-ec' or higher.
  
! `-mlong-double-64'
! `-mlong-double-128'
!      These switches control the size of `long double' type. A size of
!      64 bits makes the `long double' type equivalent to the `double'
!      type. This is the default.
  
! `-mbackchain'
! `-mno-backchain'
!      Store (do not store) the address of the caller's frame as
!      backchain pointer into the callee's stack frame.  A backchain may
!      be needed to allow debugging using tools that do not understand
!      DWARF call frame information.  When `-mno-packed-stack' is in
!      effect, the backchain pointer is stored at the bottom of the stack
!      frame; when `-mpacked-stack' is in effect, the backchain is placed
!      into the topmost word of the 96/160 byte register save area.
  
!      In general, code compiled with `-mbackchain' is call-compatible
!      with code compiled with `-mmo-backchain'; however, use of the
       backchain for debugging purposes usually requires that the whole
!      binary is built with `-mbackchain'.  Note that the combination of
!      `-mbackchain', `-mpacked-stack' and `-mhard-float' is not
!      supported.  In order to build a linux kernel use `-msoft-float'.
  
       The default is to not maintain the backchain.
  
! `-mpacked-stack'
! `-mno-packed-stack'
!      Use (do not use) the packed stack layout.  When
!      `-mno-packed-stack' is specified, the compiler uses the all fields
!      of the 96/160 byte register save area only for their default
!      purpose; unused fields still take up stack space.  When
!      `-mpacked-stack' is specified, register save slots are densely
!      packed at the top of the register save area; unused space is
!      reused for other purposes, allowing for more efficient use of the
!      available stack space.  However, when `-mbackchain' is also in
!      effect, the topmost word of the save area is always used to store
!      the backchain, and the return address register is always saved two
!      words below the backchain.
  
       As long as the stack frame backchain is not used, code generated
!      with `-mpacked-stack' is call-compatible with code generated with
!      `-mno-packed-stack'.  Note that some non-FSF releases of GCC 2.95
       for S/390 or zSeries generated code that uses the stack frame
       backchain at run time, not just for debugging purposes.  Such code
!      is not call-compatible with code compiled with `-mpacked-stack'.
!      Also, note that the combination of `-mbackchain', `-mpacked-stack'
!      and `-mhard-float' is not supported.  In order to build a linux
!      kernel use `-msoft-float'.
  
       The default is to not use the packed stack layout.
  
! `-msmall-exec'
! `-mno-small-exec'
!      Generate (or do not generate) code using the `bras' instruction to
       do subroutine calls.  This only works reliably if the total
       executable size does not exceed 64k.  The default is to use the
!      `basr' instruction instead, which does not have this limitation.
  
! `-m64'
! `-m31'
!      When `-m31' is specified, generate code compliant to the GNU/Linux
!      for S/390 ABI.  When `-m64' is specified, generate code compliant
!      to the GNU/Linux for zSeries ABI.  This allows GCC in particular
!      to generate 64-bit instructions.  For the `s390' targets, the
!      default is `-m31', while the `s390x' targets default to `-m64'.
  
! `-mzarch'
! `-mesa'
!      When `-mzarch' is specified, generate code using the instructions
!      available on z/Architecture.  When `-mesa' is specified, generate
       code using the instructions available on ESA/390.  Note that
!      `-mesa' is not possible with `-m64'.  When generating code
!      compliant to the GNU/Linux for S/390 ABI, the default is `-mesa'.
       When generating code compliant to the GNU/Linux for zSeries ABI,
!      the default is `-mzarch'.
  
! `-mhtm'
! `-mno-htm'
!      The `-mhtm' option enables a set of builtins making use of
       instructions available with the transactional execution facility
       introduced with the IBM zEnterprise EC12 machine generation *note
!      S/390 System z Built-in Functions::.  `-mhtm' is enabled by
!      default when using `-march=zEC12'.
  
! `-mvx'
! `-mno-vx'
!      When `-mvx' is specified, generate code using the instructions
       available with the vector extension facility introduced with the
       IBM z13 machine generation.  This option changes the ABI for some
       vector type values with regard to alignment and calling
       conventions.  In case vector type values are being used in an
!      ABI-relevant context a GAS `.gnu_attribute' command will be added
!      to mark the resulting binary with the ABI used.  `-mvx' is enabled
!      by default when using `-march=z13'.
  
! `-mzvector'
! `-mno-zvector'
!      The `-mzvector' option enables vector language extensions and
       builtins using instructions available with the vector extension
       facility introduced with the IBM z13 machine generation.  This
!      option adds support for `vector' to be used as a keyword to define
!      vector type variables and arguments.  `vector' is only available
       when GNU extensions are enabled.  It will not be expanded when
!      requesting strict standard compliance e.g. with `-std=c99'.  In
!      addition to the GCC low-level builtins `-mzvector' enables a set
!      of builtins added for compatibility with AltiVec-style
!      implementations like Power and Cell.  In order to make use of these
!      builtins the header file `vecintrin.h' needs to be included.
!      `-mzvector' is disabled by default.
  
! `-mmvcle'
! `-mno-mvcle'
!      Generate (or do not generate) code using the `mvcle' instruction
!      to perform block moves.  When `-mno-mvcle' is specified, use a
!      `mvc' loop instead.  This is the default unless optimizing for
!      size.
  
! `-mdebug'
! `-mno-debug'
       Print (or do not print) additional debug information when
       compiling.  The default is to not print debug information.
  
! `-march=CPU-TYPE'
       Generate code that runs on CPU-TYPE, which is the name of a system
       representing a certain processor type.  Possible values for
!      CPU-TYPE are `z900', `z990', `z9-109', `z9-ec', `z10', `z196',
!      `zEC12', and `z13'.  The default is `-march=z900'.  `g5' and `g6'
       are deprecated and will be removed with future releases.
  
! `-mtune=CPU-TYPE'
       Tune to CPU-TYPE everything applicable about the generated code,
!      except for the ABI and the set of available instructions.  The
!      list of CPU-TYPE values is the same as for `-march'.  The default
!      is the value used for `-march'.
  
! `-mtpf-trace'
! `-mno-tpf-trace'
       Generate code that adds (does not add) in TPF OS specific branches
       to trace routines in the operating system.  This option is off by
       default, even when compiling for the TPF OS.
  
! `-mfused-madd'
! `-mno-fused-madd'
       Generate code that uses (does not use) the floating-point multiply
       and accumulate instructions.  These instructions are generated by
       default if hardware floating point is used.
  
! `-mwarn-framesize=FRAMESIZE'
       Emit a warning if the current function exceeds the given frame
!      size.  Because this is a compile-time check it doesn't need to be
!      a real problem when the program runs.  It is intended to identify
       functions that most probably cause a stack overflow.  It is useful
!      to be used in an environment with limited stack size e.g. the
!      linux kernel.
  
! `-mwarn-dynamicstack'
!      Emit a warning if the function calls `alloca' or uses
       dynamically-sized arrays.  This is generally a bad idea with a
       limited stack size.
  
! `-mstack-guard=STACK-GUARD'
! `-mstack-size=STACK-SIZE'
       If these options are provided the S/390 back end emits additional
       instructions in the function prologue that trigger a trap if the
!      stack size is STACK-GUARD bytes above the STACK-SIZE (remember
!      that the stack on S/390 grows downward).  If the STACK-GUARD
!      option is omitted the smallest power of 2 larger than the frame
!      size of the compiled function is chosen.  These options are
!      intended to be used to help debugging stack overflow problems.
!      The additionally emitted code causes only little overhead and
!      hence can also be used in production-like systems without greater
!      performance degradation.  The given values have to be exact powers
!      of 2 and STACK-SIZE has to be greater than STACK-GUARD without
!      exceeding 64k.  In order to be efficient the extra code makes the
!      assumption that the stack starts at an address aligned to the
!      value given by STACK-SIZE.  The STACK-GUARD option can only be
!      used in conjunction with STACK-SIZE.
  
! `-mhotpatch=PRE-HALFWORDS,POST-HALFWORDS'
       If the hotpatch option is enabled, a "hot-patching" function
       prologue is generated for all functions in the compilation unit.
       The funtion label is prepended with the given number of two-byte
       NOP instructions (PRE-HALFWORDS, maximum 1000000).  After the
!      label, 2 * POST-HALFWORDS bytes are appended, using the largest
!      NOP like instructions the architecture allows (maximum 1000000).
  
       If both arguments are zero, hotpatching is disabled.
  
       This option can be overridden for individual functions with the
!      `hotpatch' attribute.
  
  
  File: gcc.info,  Node: Score Options,  Next: SH Options,  Prev: S/390 and zSeries Options,  Up: Submodel Options
--- 19500,19713 ----
  3.18.40 S/390 and zSeries Options
  ---------------------------------
  
! These are the '-m' options defined for the S/390 and zSeries
  architecture.
  
! '-mhard-float'
! '-msoft-float'
       Use (do not use) the hardware floating-point instructions and
!      registers for floating-point operations.  When '-msoft-float' is
!      specified, functions in 'libgcc.a' are used to perform
!      floating-point operations.  When '-mhard-float' is specified, the
       compiler generates IEEE floating-point instructions.  This is the
       default.
  
! '-mhard-dfp'
! '-mno-hard-dfp'
       Use (do not use) the hardware decimal-floating-point instructions
!      for decimal-floating-point operations.  When '-mno-hard-dfp' is
!      specified, functions in 'libgcc.a' are used to perform
!      decimal-floating-point operations.  When '-mhard-dfp' is specified,
!      the compiler generates decimal-floating-point hardware
!      instructions.  This is the default for '-march=z9-ec' or higher.
  
! '-mlong-double-64'
! '-mlong-double-128'
!      These switches control the size of 'long double' type.  A size of
!      64 bits makes the 'long double' type equivalent to the 'double'
!      type.  This is the default.
  
! '-mbackchain'
! '-mno-backchain'
!      Store (do not store) the address of the caller's frame as backchain
!      pointer into the callee's stack frame.  A backchain may be needed
!      to allow debugging using tools that do not understand DWARF call
!      frame information.  When '-mno-packed-stack' is in effect, the
!      backchain pointer is stored at the bottom of the stack frame; when
!      '-mpacked-stack' is in effect, the backchain is placed into the
!      topmost word of the 96/160 byte register save area.
  
!      In general, code compiled with '-mbackchain' is call-compatible
!      with code compiled with '-mmo-backchain'; however, use of the
       backchain for debugging purposes usually requires that the whole
!      binary is built with '-mbackchain'.  Note that the combination of
!      '-mbackchain', '-mpacked-stack' and '-mhard-float' is not
!      supported.  In order to build a linux kernel use '-msoft-float'.
  
       The default is to not maintain the backchain.
  
! '-mpacked-stack'
! '-mno-packed-stack'
!      Use (do not use) the packed stack layout.  When '-mno-packed-stack'
!      is specified, the compiler uses the all fields of the 96/160 byte
!      register save area only for their default purpose; unused fields
!      still take up stack space.  When '-mpacked-stack' is specified,
!      register save slots are densely packed at the top of the register
!      save area; unused space is reused for other purposes, allowing for
!      more efficient use of the available stack space.  However, when
!      '-mbackchain' is also in effect, the topmost word of the save area
!      is always used to store the backchain, and the return address
!      register is always saved two words below the backchain.
  
       As long as the stack frame backchain is not used, code generated
!      with '-mpacked-stack' is call-compatible with code generated with
!      '-mno-packed-stack'.  Note that some non-FSF releases of GCC 2.95
       for S/390 or zSeries generated code that uses the stack frame
       backchain at run time, not just for debugging purposes.  Such code
!      is not call-compatible with code compiled with '-mpacked-stack'.
!      Also, note that the combination of '-mbackchain', '-mpacked-stack'
!      and '-mhard-float' is not supported.  In order to build a linux
!      kernel use '-msoft-float'.
  
       The default is to not use the packed stack layout.
  
! '-msmall-exec'
! '-mno-small-exec'
!      Generate (or do not generate) code using the 'bras' instruction to
       do subroutine calls.  This only works reliably if the total
       executable size does not exceed 64k.  The default is to use the
!      'basr' instruction instead, which does not have this limitation.
  
! '-m64'
! '-m31'
!      When '-m31' is specified, generate code compliant to the GNU/Linux
!      for S/390 ABI.  When '-m64' is specified, generate code compliant
!      to the GNU/Linux for zSeries ABI.  This allows GCC in particular to
!      generate 64-bit instructions.  For the 's390' targets, the default
!      is '-m31', while the 's390x' targets default to '-m64'.
  
! '-mzarch'
! '-mesa'
!      When '-mzarch' is specified, generate code using the instructions
!      available on z/Architecture.  When '-mesa' is specified, generate
       code using the instructions available on ESA/390.  Note that
!      '-mesa' is not possible with '-m64'.  When generating code
!      compliant to the GNU/Linux for S/390 ABI, the default is '-mesa'.
       When generating code compliant to the GNU/Linux for zSeries ABI,
!      the default is '-mzarch'.
  
! '-mhtm'
! '-mno-htm'
!      The '-mhtm' option enables a set of builtins making use of
       instructions available with the transactional execution facility
       introduced with the IBM zEnterprise EC12 machine generation *note
!      S/390 System z Built-in Functions::.  '-mhtm' is enabled by default
!      when using '-march=zEC12'.
  
! '-mvx'
! '-mno-vx'
!      When '-mvx' is specified, generate code using the instructions
       available with the vector extension facility introduced with the
       IBM z13 machine generation.  This option changes the ABI for some
       vector type values with regard to alignment and calling
       conventions.  In case vector type values are being used in an
!      ABI-relevant context a GAS '.gnu_attribute' command will be added
!      to mark the resulting binary with the ABI used.  '-mvx' is enabled
!      by default when using '-march=z13'.
  
! '-mzvector'
! '-mno-zvector'
!      The '-mzvector' option enables vector language extensions and
       builtins using instructions available with the vector extension
       facility introduced with the IBM z13 machine generation.  This
!      option adds support for 'vector' to be used as a keyword to define
!      vector type variables and arguments.  'vector' is only available
       when GNU extensions are enabled.  It will not be expanded when
!      requesting strict standard compliance e.g.  with '-std=c99'.  In
!      addition to the GCC low-level builtins '-mzvector' enables a set of
!      builtins added for compatibility with AltiVec-style implementations
!      like Power and Cell.  In order to make use of these builtins the
!      header file 'vecintrin.h' needs to be included.  '-mzvector' is
!      disabled by default.
  
! '-mmvcle'
! '-mno-mvcle'
!      Generate (or do not generate) code using the 'mvcle' instruction to
!      perform block moves.  When '-mno-mvcle' is specified, use a 'mvc'
!      loop instead.  This is the default unless optimizing for size.
  
! '-mdebug'
! '-mno-debug'
       Print (or do not print) additional debug information when
       compiling.  The default is to not print debug information.
  
! '-march=CPU-TYPE'
       Generate code that runs on CPU-TYPE, which is the name of a system
       representing a certain processor type.  Possible values for
!      CPU-TYPE are 'z900', 'z990', 'z9-109', 'z9-ec', 'z10', 'z196',
!      'zEC12', and 'z13'.  The default is '-march=z900'.  'g5' and 'g6'
       are deprecated and will be removed with future releases.
  
! '-mtune=CPU-TYPE'
       Tune to CPU-TYPE everything applicable about the generated code,
!      except for the ABI and the set of available instructions.  The list
!      of CPU-TYPE values is the same as for '-march'.  The default is the
!      value used for '-march'.
  
! '-mtpf-trace'
! '-mno-tpf-trace'
       Generate code that adds (does not add) in TPF OS specific branches
       to trace routines in the operating system.  This option is off by
       default, even when compiling for the TPF OS.
  
! '-mfused-madd'
! '-mno-fused-madd'
       Generate code that uses (does not use) the floating-point multiply
       and accumulate instructions.  These instructions are generated by
       default if hardware floating point is used.
  
! '-mwarn-framesize=FRAMESIZE'
       Emit a warning if the current function exceeds the given frame
!      size.  Because this is a compile-time check it doesn't need to be a
!      real problem when the program runs.  It is intended to identify
       functions that most probably cause a stack overflow.  It is useful
!      to be used in an environment with limited stack size e.g. the linux
!      kernel.
  
! '-mwarn-dynamicstack'
!      Emit a warning if the function calls 'alloca' or uses
       dynamically-sized arrays.  This is generally a bad idea with a
       limited stack size.
  
! '-mstack-guard=STACK-GUARD'
! '-mstack-size=STACK-SIZE'
       If these options are provided the S/390 back end emits additional
       instructions in the function prologue that trigger a trap if the
!      stack size is STACK-GUARD bytes above the STACK-SIZE (remember that
!      the stack on S/390 grows downward).  If the STACK-GUARD option is
!      omitted the smallest power of 2 larger than the frame size of the
!      compiled function is chosen.  These options are intended to be used
!      to help debugging stack overflow problems.  The additionally
!      emitted code causes only little overhead and hence can also be used
!      in production-like systems without greater performance degradation.
!      The given values have to be exact powers of 2 and STACK-SIZE has to
!      be greater than STACK-GUARD without exceeding 64k.  In order to be
!      efficient the extra code makes the assumption that the stack starts
!      at an address aligned to the value given by STACK-SIZE.  The
!      STACK-GUARD option can only be used in conjunction with STACK-SIZE.
  
! '-mhotpatch=PRE-HALFWORDS,POST-HALFWORDS'
       If the hotpatch option is enabled, a "hot-patching" function
       prologue is generated for all functions in the compilation unit.
       The funtion label is prepended with the given number of two-byte
       NOP instructions (PRE-HALFWORDS, maximum 1000000).  After the
!      label, 2 * POST-HALFWORDS bytes are appended, using the largest NOP
!      like instructions the architecture allows (maximum 1000000).
  
       If both arguments are zero, hotpatching is disabled.
  
       This option can be overridden for individual functions with the
!      'hotpatch' attribute.
  
  
  File: gcc.info,  Node: Score Options,  Next: SH Options,  Prev: S/390 and zSeries Options,  Up: Submodel Options
*************** File: gcc.info,  Node: Score Options,  N
*** 19822,19853 ****
  
  These options are defined for Score implementations:
  
! `-meb'
       Compile code for big-endian mode.  This is the default.
  
! `-mel'
       Compile code for little-endian mode.
  
! `-mnhwloop'
!      Disable generation of `bcnz' instructions.
  
! `-muls'
       Enable generation of unaligned load and store instructions.
  
! `-mmac'
!      Enable the use of multiply-accumulate instructions. Disabled by
       default.
  
! `-mscore5'
       Specify the SCORE5 as the target architecture.
  
! `-mscore5u'
       Specify the SCORE5U of the target architecture.
  
! `-mscore7'
!      Specify the SCORE7 as the target architecture. This is the default.
  
! `-mscore7d'
       Specify the SCORE7D as the target architecture.
  
  
--- 19717,19749 ----
  
  These options are defined for Score implementations:
  
! '-meb'
       Compile code for big-endian mode.  This is the default.
  
! '-mel'
       Compile code for little-endian mode.
  
! '-mnhwloop'
!      Disable generation of 'bcnz' instructions.
  
! '-muls'
       Enable generation of unaligned load and store instructions.
  
! '-mmac'
!      Enable the use of multiply-accumulate instructions.  Disabled by
       default.
  
! '-mscore5'
       Specify the SCORE5 as the target architecture.
  
! '-mscore5u'
       Specify the SCORE5U of the target architecture.
  
! '-mscore7'
!      Specify the SCORE7 as the target architecture.  This is the
!      default.
  
! '-mscore7d'
       Specify the SCORE7D as the target architecture.
  
  
*************** File: gcc.info,  Node: SH Options,  Next
*** 19856,20092 ****
  3.18.42 SH Options
  ------------------
  
! These `-m' options are defined for the SH implementations:
  
! `-m1'
       Generate code for the SH1.
  
! `-m2'
       Generate code for the SH2.
  
! `-m2e'
       Generate code for the SH2e.
  
! `-m2a-nofpu'
!      Generate code for the SH2a without FPU, or for a SH2a-FPU in such
!      a way that the floating-point unit is not used.
  
! `-m2a-single-only'
       Generate code for the SH2a-FPU, in such a way that no
       double-precision floating-point operations are used.
  
! `-m2a-single'
       Generate code for the SH2a-FPU assuming the floating-point unit is
       in single-precision mode by default.
  
! `-m2a'
       Generate code for the SH2a-FPU assuming the floating-point unit is
       in double-precision mode by default.
  
! `-m3'
       Generate code for the SH3.
  
! `-m3e'
       Generate code for the SH3e.
  
! `-m4-nofpu'
       Generate code for the SH4 without a floating-point unit.
  
! `-m4-single-only'
       Generate code for the SH4 with a floating-point unit that only
       supports single-precision arithmetic.
  
! `-m4-single'
       Generate code for the SH4 assuming the floating-point unit is in
       single-precision mode by default.
  
! `-m4'
       Generate code for the SH4.
  
! `-m4-100'
       Generate code for SH4-100.
  
! `-m4-100-nofpu'
       Generate code for SH4-100 in such a way that the floating-point
       unit is not used.
  
! `-m4-100-single'
       Generate code for SH4-100 assuming the floating-point unit is in
       single-precision mode by default.
  
! `-m4-100-single-only'
       Generate code for SH4-100 in such a way that no double-precision
       floating-point operations are used.
  
! `-m4-200'
       Generate code for SH4-200.
  
! `-m4-200-nofpu'
       Generate code for SH4-200 without in such a way that the
       floating-point unit is not used.
  
! `-m4-200-single'
       Generate code for SH4-200 assuming the floating-point unit is in
       single-precision mode by default.
  
! `-m4-200-single-only'
       Generate code for SH4-200 in such a way that no double-precision
       floating-point operations are used.
  
! `-m4-300'
       Generate code for SH4-300.
  
! `-m4-300-nofpu'
       Generate code for SH4-300 without in such a way that the
       floating-point unit is not used.
  
! `-m4-300-single'
       Generate code for SH4-300 in such a way that no double-precision
       floating-point operations are used.
  
! `-m4-300-single-only'
       Generate code for SH4-300 in such a way that no double-precision
       floating-point operations are used.
  
! `-m4-340'
       Generate code for SH4-340 (no MMU, no FPU).
  
! `-m4-500'
!      Generate code for SH4-500 (no FPU).  Passes `-isa=sh4-nofpu' to the
       assembler.
  
! `-m4a-nofpu'
       Generate code for the SH4al-dsp, or for a SH4a in such a way that
       the floating-point unit is not used.
  
! `-m4a-single-only'
       Generate code for the SH4a, in such a way that no double-precision
       floating-point operations are used.
  
! `-m4a-single'
       Generate code for the SH4a assuming the floating-point unit is in
       single-precision mode by default.
  
! `-m4a'
       Generate code for the SH4a.
  
! `-m4al'
!      Same as `-m4a-nofpu', except that it implicitly passes `-dsp' to
       the assembler.  GCC doesn't generate any DSP instructions at the
       moment.
  
! `-mb'
       Compile code for the processor in big-endian mode.
  
! `-ml'
       Compile code for the processor in little-endian mode.
  
! `-mdalign'
       Align doubles at 64-bit boundaries.  Note that this changes the
       calling conventions, and thus some functions from the standard C
!      library do not work unless you recompile it first with `-mdalign'.
  
! `-mrelax'
       Shorten some address references at link time, when possible; uses
!      the linker option `-relax'.
  
! `-mbigtable'
!      Use 32-bit offsets in `switch' tables.  The default is to use
       16-bit offsets.
  
! `-mbitops'
       Enable the use of bit manipulation instructions on SH2A.
  
! `-mfmovd'
!      Enable the use of the instruction `fmovd'.  Check `-mdalign' for
       alignment constraints.
  
! `-mrenesas'
       Comply with the calling conventions defined by Renesas.
  
! `-mno-renesas'
       Comply with the calling conventions defined for GCC before the
!      Renesas conventions were available.  This option is the default
!      for all targets of the SH toolchain.
  
! `-mnomacsave'
!      Mark the `MAC' register as call-clobbered, even if `-mrenesas' is
       given.
  
! `-mieee'
! `-mno-ieee'
       Control the IEEE compliance of floating-point comparisons, which
       affects the handling of cases where the result of a comparison is
!      unordered.  By default `-mieee' is implicitly enabled.  If
!      `-ffinite-math-only' is enabled `-mno-ieee' is implicitly set,
!      which results in faster floating-point greater-equal and
!      less-equal comparisons.  The implicit settings can be overridden
!      by specifying either `-mieee' or `-mno-ieee'.
  
! `-minline-ic_invalidate'
       Inline code to invalidate instruction cache entries after setting
       up nested function trampolines.  This option has no effect if
!      `-musermode' is in effect and the selected code generation option
!      (e.g. `-m4') does not allow the use of the `icbi' instruction.  If
       the selected code generation option does not allow the use of the
!      `icbi' instruction, and `-musermode' is not in effect, the inlined
       code manipulates the instruction cache address array directly with
       an associative write.  This not only requires privileged mode at
       run time, but it also fails if the cache line had been mapped via
       the TLB and has become unmapped.
  
! `-misize'
       Dump instruction size and location in the assembly code.
  
! `-mpadstruct'
       This option is deprecated.  It pads structures to multiple of 4
       bytes, which is incompatible with the SH ABI.
  
! `-matomic-model=MODEL'
       Sets the model of atomic operations and additional parameters as a
!      comma separated list.  For details on the atomic built-in
!      functions see *note __atomic Builtins::.  The following models and
!      parameters are supported:
  
!     `none'
            Disable compiler generated atomic sequences and emit library
            calls for atomic operations.  This is the default if the
!           target is not `sh*-*-linux*'.
  
!     `soft-gusa'
            Generate GNU/Linux compatible gUSA software atomic sequences
            for the atomic built-in functions.  The generated atomic
            sequences require additional support from the
            interrupt/exception handling code of the system and are only
            suitable for SH3* and SH4* single-core systems.  This option
!           is enabled by default when the target is `sh*-*-linux*' and
            SH3* or SH4*.  When the target is SH4A, this option also
!           partially utilizes the hardware atomic instructions `movli.l'
!           and `movco.l' to create more efficient code, unless `strict'
            is specified.
  
!     `soft-tcb'
            Generate software atomic sequences that use a variable in the
            thread control block.  This is a variation of the gUSA
            sequences which can also be used on SH1* and SH2* targets.
!           The generated atomic sequences require additional support
!           from the interrupt/exception handling code of the system and
!           are only suitable for single-core systems.  When using this
!           model, the `gbr-offset=' parameter has to be specified as
!           well.
  
!     `soft-imask'
            Generate software atomic sequences that temporarily disable
!           interrupts by setting `SR.IMASK = 1111'.  This model works
            only when the program runs in privileged mode and is only
!           suitable for single-core systems.  Additional support from
!           the interrupt/exception handling code of the system is not
            required.  This model is enabled by default when the target is
!           `sh*-*-linux*' and SH1* or SH2*.
  
!     `hard-llcs'
!           Generate hardware atomic sequences using the `movli.l' and
!           `movco.l' instructions only.  This is only available on SH4A
            and is suitable for multi-core systems.  Since the hardware
            instructions support only 32 bit atomic variables access to 8
            or 16 bit variables is emulated with 32 bit accesses.  Code
--- 19752,19987 ----
  3.18.42 SH Options
  ------------------
  
! These '-m' options are defined for the SH implementations:
  
! '-m1'
       Generate code for the SH1.
  
! '-m2'
       Generate code for the SH2.
  
! '-m2e'
       Generate code for the SH2e.
  
! '-m2a-nofpu'
!      Generate code for the SH2a without FPU, or for a SH2a-FPU in such a
!      way that the floating-point unit is not used.
  
! '-m2a-single-only'
       Generate code for the SH2a-FPU, in such a way that no
       double-precision floating-point operations are used.
  
! '-m2a-single'
       Generate code for the SH2a-FPU assuming the floating-point unit is
       in single-precision mode by default.
  
! '-m2a'
       Generate code for the SH2a-FPU assuming the floating-point unit is
       in double-precision mode by default.
  
! '-m3'
       Generate code for the SH3.
  
! '-m3e'
       Generate code for the SH3e.
  
! '-m4-nofpu'
       Generate code for the SH4 without a floating-point unit.
  
! '-m4-single-only'
       Generate code for the SH4 with a floating-point unit that only
       supports single-precision arithmetic.
  
! '-m4-single'
       Generate code for the SH4 assuming the floating-point unit is in
       single-precision mode by default.
  
! '-m4'
       Generate code for the SH4.
  
! '-m4-100'
       Generate code for SH4-100.
  
! '-m4-100-nofpu'
       Generate code for SH4-100 in such a way that the floating-point
       unit is not used.
  
! '-m4-100-single'
       Generate code for SH4-100 assuming the floating-point unit is in
       single-precision mode by default.
  
! '-m4-100-single-only'
       Generate code for SH4-100 in such a way that no double-precision
       floating-point operations are used.
  
! '-m4-200'
       Generate code for SH4-200.
  
! '-m4-200-nofpu'
       Generate code for SH4-200 without in such a way that the
       floating-point unit is not used.
  
! '-m4-200-single'
       Generate code for SH4-200 assuming the floating-point unit is in
       single-precision mode by default.
  
! '-m4-200-single-only'
       Generate code for SH4-200 in such a way that no double-precision
       floating-point operations are used.
  
! '-m4-300'
       Generate code for SH4-300.
  
! '-m4-300-nofpu'
       Generate code for SH4-300 without in such a way that the
       floating-point unit is not used.
  
! '-m4-300-single'
       Generate code for SH4-300 in such a way that no double-precision
       floating-point operations are used.
  
! '-m4-300-single-only'
       Generate code for SH4-300 in such a way that no double-precision
       floating-point operations are used.
  
! '-m4-340'
       Generate code for SH4-340 (no MMU, no FPU).
  
! '-m4-500'
!      Generate code for SH4-500 (no FPU). Passes '-isa=sh4-nofpu' to the
       assembler.
  
! '-m4a-nofpu'
       Generate code for the SH4al-dsp, or for a SH4a in such a way that
       the floating-point unit is not used.
  
! '-m4a-single-only'
       Generate code for the SH4a, in such a way that no double-precision
       floating-point operations are used.
  
! '-m4a-single'
       Generate code for the SH4a assuming the floating-point unit is in
       single-precision mode by default.
  
! '-m4a'
       Generate code for the SH4a.
  
! '-m4al'
!      Same as '-m4a-nofpu', except that it implicitly passes '-dsp' to
       the assembler.  GCC doesn't generate any DSP instructions at the
       moment.
  
! '-mb'
       Compile code for the processor in big-endian mode.
  
! '-ml'
       Compile code for the processor in little-endian mode.
  
! '-mdalign'
       Align doubles at 64-bit boundaries.  Note that this changes the
       calling conventions, and thus some functions from the standard C
!      library do not work unless you recompile it first with '-mdalign'.
  
! '-mrelax'
       Shorten some address references at link time, when possible; uses
!      the linker option '-relax'.
  
! '-mbigtable'
!      Use 32-bit offsets in 'switch' tables.  The default is to use
       16-bit offsets.
  
! '-mbitops'
       Enable the use of bit manipulation instructions on SH2A.
  
! '-mfmovd'
!      Enable the use of the instruction 'fmovd'.  Check '-mdalign' for
       alignment constraints.
  
! '-mrenesas'
       Comply with the calling conventions defined by Renesas.
  
! '-mno-renesas'
       Comply with the calling conventions defined for GCC before the
!      Renesas conventions were available.  This option is the default for
!      all targets of the SH toolchain.
  
! '-mnomacsave'
!      Mark the 'MAC' register as call-clobbered, even if '-mrenesas' is
       given.
  
! '-mieee'
! '-mno-ieee'
       Control the IEEE compliance of floating-point comparisons, which
       affects the handling of cases where the result of a comparison is
!      unordered.  By default '-mieee' is implicitly enabled.  If
!      '-ffinite-math-only' is enabled '-mno-ieee' is implicitly set,
!      which results in faster floating-point greater-equal and less-equal
!      comparisons.  The implicit settings can be overridden by specifying
!      either '-mieee' or '-mno-ieee'.
  
! '-minline-ic_invalidate'
       Inline code to invalidate instruction cache entries after setting
       up nested function trampolines.  This option has no effect if
!      '-musermode' is in effect and the selected code generation option
!      (e.g.  '-m4') does not allow the use of the 'icbi' instruction.  If
       the selected code generation option does not allow the use of the
!      'icbi' instruction, and '-musermode' is not in effect, the inlined
       code manipulates the instruction cache address array directly with
       an associative write.  This not only requires privileged mode at
       run time, but it also fails if the cache line had been mapped via
       the TLB and has become unmapped.
  
! '-misize'
       Dump instruction size and location in the assembly code.
  
! '-mpadstruct'
       This option is deprecated.  It pads structures to multiple of 4
       bytes, which is incompatible with the SH ABI.
  
! '-matomic-model=MODEL'
       Sets the model of atomic operations and additional parameters as a
!      comma separated list.  For details on the atomic built-in functions
!      see *note __atomic Builtins::.  The following models and parameters
!      are supported:
  
!      'none'
            Disable compiler generated atomic sequences and emit library
            calls for atomic operations.  This is the default if the
!           target is not 'sh*-*-linux*'.
  
!      'soft-gusa'
            Generate GNU/Linux compatible gUSA software atomic sequences
            for the atomic built-in functions.  The generated atomic
            sequences require additional support from the
            interrupt/exception handling code of the system and are only
            suitable for SH3* and SH4* single-core systems.  This option
!           is enabled by default when the target is 'sh*-*-linux*' and
            SH3* or SH4*.  When the target is SH4A, this option also
!           partially utilizes the hardware atomic instructions 'movli.l'
!           and 'movco.l' to create more efficient code, unless 'strict'
            is specified.
  
!      'soft-tcb'
            Generate software atomic sequences that use a variable in the
            thread control block.  This is a variation of the gUSA
            sequences which can also be used on SH1* and SH2* targets.
!           The generated atomic sequences require additional support from
!           the interrupt/exception handling code of the system and are
!           only suitable for single-core systems.  When using this model,
!           the 'gbr-offset=' parameter has to be specified as well.
  
!      'soft-imask'
            Generate software atomic sequences that temporarily disable
!           interrupts by setting 'SR.IMASK = 1111'.  This model works
            only when the program runs in privileged mode and is only
!           suitable for single-core systems.  Additional support from the
!           interrupt/exception handling code of the system is not
            required.  This model is enabled by default when the target is
!           'sh*-*-linux*' and SH1* or SH2*.
  
!      'hard-llcs'
!           Generate hardware atomic sequences using the 'movli.l' and
!           'movco.l' instructions only.  This is only available on SH4A
            and is suitable for multi-core systems.  Since the hardware
            instructions support only 32 bit atomic variables access to 8
            or 16 bit variables is emulated with 32 bit accesses.  Code
*************** These `-m' options are defined for the S
*** 20096,20289 ****
            interrupt/exception handling code of the system is not
            required for this model.
  
!     `gbr-offset='
            This parameter specifies the offset in bytes of the variable
            in the thread control block structure that should be used by
!           the generated atomic sequences when the `soft-tcb' model has
            been selected.  For other models this parameter is ignored.
!           The specified value must be an integer multiple of four and
!           in the range 0-1020.
! 
!     `strict'
!           This parameter prevents mixed usage of multiple atomic
!           models, even if they are compatible, and makes the compiler
!           generate atomic sequences of the specified model only.
  
  
! `-mtas'
!      Generate the `tas.b' opcode for `__atomic_test_and_set'.  Notice
       that depending on the particular hardware and software
       configuration this can degrade overall performance due to the
!      operand cache line flushes that are implied by the `tas.b'
!      instruction.  On multi-core SH4A processors the `tas.b'
!      instruction must be used with caution since it can result in data
!      corruption for certain cache configurations.
  
! `-mprefergot'
       When generating position-independent code, emit function calls
       using the Global Offset Table instead of the Procedure Linkage
       Table.
  
! `-musermode'
! `-mno-usermode'
       Don't allow (allow) the compiler generating privileged mode code.
!      Specifying `-musermode' also implies `-mno-inline-ic_invalidate'
!      if the inlined code would not work in user mode.  `-musermode' is
!      the default when the target is `sh*-*-linux*'.  If the target is
!      SH1* or SH2* `-musermode' has no effect, since there is no user
!      mode.
  
! `-multcost=NUMBER'
       Set the cost to assume for a multiply insn.
  
! `-mdiv=STRATEGY'
       Set the division strategy to be used for integer division
       operations.  STRATEGY can be one of:
  
!     `call-div1'
            Calls a library function that uses the single-step division
!           instruction `div1' to perform the operation.  Division by
!           zero calculates an unspecified result and does not trap.
!           This is the default except for SH4, SH2A and SHcompact.
  
!     `call-fp'
!           Calls a library function that performs the operation in
!           double precision floating point.  Division by zero causes a
            floating-point exception.  This is the default for SHcompact
!           with FPU.  Specifying this for targets that do not have a
!           double precision FPU defaults to `call-div1'.
  
!     `call-table'
            Calls a library function that uses a lookup table for small
!           divisors and the `div1' instruction with case distinction for
            larger divisors.  Division by zero calculates an unspecified
            result and does not trap.  This is the default for SH4.
            Specifying this for targets that do not have dynamic shift
!           instructions defaults to `call-div1'.
! 
  
       When a division strategy has not been specified the default
       strategy is selected based on the current target.  For SH2A the
!      default strategy is to use the `divs' and `divu' instructions
       instead of library function calls.
  
! `-maccumulate-outgoing-args'
       Reserve space once for outgoing arguments in the function prologue
!      rather than around each call.  Generally beneficial for
!      performance and size.  Also needed for unwinding to avoid changing
!      the stack frame around conditional code.
  
! `-mdivsi3_libfunc=NAME'
       Set the name of the library function used for 32-bit signed
!      division to NAME.  This only affects the name used in the `call'
       division strategies, and the compiler still expects the same sets
       of input/output/clobbered registers as if this option were not
       present.
  
! `-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator can not use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! `-mbranch-cost=NUM'
       Assume NUM to be the cost for a branch instruction.  Higher numbers
       make the compiler try to generate more branch-free code if
       possible.  If not specified the value is selected depending on the
       processor type that is being compiled for.
  
! `-mzdcbranch'
! `-mno-zdcbranch'
       Assume (do not assume) that zero displacement conditional branch
!      instructions `bt' and `bf' are fast.  If `-mzdcbranch' is
       specified, the compiler prefers zero displacement branch code
!      sequences.  This is enabled by default when generating code for
!      SH4 and SH4A.  It can be explicitly disabled by specifying
!      `-mno-zdcbranch'.
  
! `-mcbranch-force-delay-slot'
       Force the usage of delay slots for conditional branches, which
!      stuffs the delay slot with a `nop' if a suitable instruction can't
       be found.  By default this option is disabled.  It can be enabled
       to work around hardware bugs as found in the original SH7055.
  
! `-mfused-madd'
! `-mno-fused-madd'
       Generate code that uses (does not use) the floating-point multiply
       and accumulate instructions.  These instructions are generated by
       default if hardware floating point is used.  The machine-dependent
!      `-mfused-madd' option is now mapped to the machine-independent
!      `-ffp-contract=fast' option, and `-mno-fused-madd' is mapped to
!      `-ffp-contract=off'.
  
! `-mfsca'
! `-mno-fsca'
!      Allow or disallow the compiler to emit the `fsca' instruction for
!      sine and cosine approximations.  The option `-mfsca' must be used
!      in combination with `-funsafe-math-optimizations'.  It is enabled
!      by default when generating code for SH4A.  Using `-mno-fsca'
       disables sine and cosine approximations even if
!      `-funsafe-math-optimizations' is in effect.
  
! `-mfsrra'
! `-mno-fsrra'
!      Allow or disallow the compiler to emit the `fsrra' instruction for
!      reciprocal square root approximations.  The option `-mfsrra' must
!      be used in combination with `-funsafe-math-optimizations' and
!      `-ffinite-math-only'.  It is enabled by default when generating
!      code for SH4A.  Using `-mno-fsrra' disables reciprocal square root
!      approximations even if `-funsafe-math-optimizations' and
!      `-ffinite-math-only' are in effect.
  
! `-mpretend-cmove'
       Prefer zero-displacement conditional branches for conditional move
       instruction patterns.  This can result in faster code on the SH4
       processor.
  
! `-mfdpic'
       Generate code using the FDPIC ABI.
  
- 
  
  File: gcc.info,  Node: Solaris 2 Options,  Next: SPARC Options,  Prev: SH Options,  Up: Submodel Options
  
  3.18.43 Solaris 2 Options
  -------------------------
  
! These `-m' options are supported on Solaris 2:
  
! `-mclear-hwcap'
!      `-mclear-hwcap' tells the compiler to remove the hardware
       capabilities generated by the Solaris assembler.  This is only
!      necessary when object files use ISA extensions not supported by
!      the current machine, but check at runtime whether or not to use
!      them.
  
! `-mimpure-text'
!      `-mimpure-text', used in addition to `-shared', tells the compiler
!      to not pass `-z text' to the linker when linking a shared object.
       Using this option, you can link position-dependent code into a
       shared object.
  
!      `-mimpure-text' suppresses the "relocations remain against
       allocatable but non-writable sections" linker error message.
       However, the necessary relocations trigger copy-on-write, and the
       shared object is not actually shared across processes.  Instead of
!      using `-mimpure-text', you should compile all source code with
!      `-fpic' or `-fPIC'.
! 
  
   These switches are supported in addition to the above on Solaris 2:
  
! `-pthreads'
       Add support for multithreading using the POSIX threads library.
       This option sets flags for both the preprocessor and linker.  This
!      option does not affect the thread safety of object code produced
!      by the compiler or that of libraries supplied with it.
  
! `-pthread'
!      This is a synonym for `-pthreads'.
  
  
  File: gcc.info,  Node: SPARC Options,  Next: SPU Options,  Prev: Solaris 2 Options,  Up: Submodel Options
--- 19991,20178 ----
            interrupt/exception handling code of the system is not
            required for this model.
  
!      'gbr-offset='
            This parameter specifies the offset in bytes of the variable
            in the thread control block structure that should be used by
!           the generated atomic sequences when the 'soft-tcb' model has
            been selected.  For other models this parameter is ignored.
!           The specified value must be an integer multiple of four and in
!           the range 0-1020.
  
+      'strict'
+           This parameter prevents mixed usage of multiple atomic models,
+           even if they are compatible, and makes the compiler generate
+           atomic sequences of the specified model only.
  
! '-mtas'
!      Generate the 'tas.b' opcode for '__atomic_test_and_set'.  Notice
       that depending on the particular hardware and software
       configuration this can degrade overall performance due to the
!      operand cache line flushes that are implied by the 'tas.b'
!      instruction.  On multi-core SH4A processors the 'tas.b' instruction
!      must be used with caution since it can result in data corruption
!      for certain cache configurations.
  
! '-mprefergot'
       When generating position-independent code, emit function calls
       using the Global Offset Table instead of the Procedure Linkage
       Table.
  
! '-musermode'
! '-mno-usermode'
       Don't allow (allow) the compiler generating privileged mode code.
!      Specifying '-musermode' also implies '-mno-inline-ic_invalidate' if
!      the inlined code would not work in user mode.  '-musermode' is the
!      default when the target is 'sh*-*-linux*'.  If the target is SH1*
!      or SH2* '-musermode' has no effect, since there is no user mode.
  
! '-multcost=NUMBER'
       Set the cost to assume for a multiply insn.
  
! '-mdiv=STRATEGY'
       Set the division strategy to be used for integer division
       operations.  STRATEGY can be one of:
  
!      'call-div1'
            Calls a library function that uses the single-step division
!           instruction 'div1' to perform the operation.  Division by zero
!           calculates an unspecified result and does not trap.  This is
!           the default except for SH4, SH2A and SHcompact.
  
!      'call-fp'
!           Calls a library function that performs the operation in double
!           precision floating point.  Division by zero causes a
            floating-point exception.  This is the default for SHcompact
!           with FPU. Specifying this for targets that do not have a
!           double precision FPU defaults to 'call-div1'.
  
!      'call-table'
            Calls a library function that uses a lookup table for small
!           divisors and the 'div1' instruction with case distinction for
            larger divisors.  Division by zero calculates an unspecified
            result and does not trap.  This is the default for SH4.
            Specifying this for targets that do not have dynamic shift
!           instructions defaults to 'call-div1'.
  
       When a division strategy has not been specified the default
       strategy is selected based on the current target.  For SH2A the
!      default strategy is to use the 'divs' and 'divu' instructions
       instead of library function calls.
  
! '-maccumulate-outgoing-args'
       Reserve space once for outgoing arguments in the function prologue
!      rather than around each call.  Generally beneficial for performance
!      and size.  Also needed for unwinding to avoid changing the stack
!      frame around conditional code.
  
! '-mdivsi3_libfunc=NAME'
       Set the name of the library function used for 32-bit signed
!      division to NAME.  This only affects the name used in the 'call'
       division strategies, and the compiler still expects the same sets
       of input/output/clobbered registers as if this option were not
       present.
  
! '-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator can not use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! '-mbranch-cost=NUM'
       Assume NUM to be the cost for a branch instruction.  Higher numbers
       make the compiler try to generate more branch-free code if
       possible.  If not specified the value is selected depending on the
       processor type that is being compiled for.
  
! '-mzdcbranch'
! '-mno-zdcbranch'
       Assume (do not assume) that zero displacement conditional branch
!      instructions 'bt' and 'bf' are fast.  If '-mzdcbranch' is
       specified, the compiler prefers zero displacement branch code
!      sequences.  This is enabled by default when generating code for SH4
!      and SH4A. It can be explicitly disabled by specifying
!      '-mno-zdcbranch'.
  
! '-mcbranch-force-delay-slot'
       Force the usage of delay slots for conditional branches, which
!      stuffs the delay slot with a 'nop' if a suitable instruction can't
       be found.  By default this option is disabled.  It can be enabled
       to work around hardware bugs as found in the original SH7055.
  
! '-mfused-madd'
! '-mno-fused-madd'
       Generate code that uses (does not use) the floating-point multiply
       and accumulate instructions.  These instructions are generated by
       default if hardware floating point is used.  The machine-dependent
!      '-mfused-madd' option is now mapped to the machine-independent
!      '-ffp-contract=fast' option, and '-mno-fused-madd' is mapped to
!      '-ffp-contract=off'.
  
! '-mfsca'
! '-mno-fsca'
!      Allow or disallow the compiler to emit the 'fsca' instruction for
!      sine and cosine approximations.  The option '-mfsca' must be used
!      in combination with '-funsafe-math-optimizations'.  It is enabled
!      by default when generating code for SH4A. Using '-mno-fsca'
       disables sine and cosine approximations even if
!      '-funsafe-math-optimizations' is in effect.
  
! '-mfsrra'
! '-mno-fsrra'
!      Allow or disallow the compiler to emit the 'fsrra' instruction for
!      reciprocal square root approximations.  The option '-mfsrra' must
!      be used in combination with '-funsafe-math-optimizations' and
!      '-ffinite-math-only'.  It is enabled by default when generating
!      code for SH4A. Using '-mno-fsrra' disables reciprocal square root
!      approximations even if '-funsafe-math-optimizations' and
!      '-ffinite-math-only' are in effect.
  
! '-mpretend-cmove'
       Prefer zero-displacement conditional branches for conditional move
       instruction patterns.  This can result in faster code on the SH4
       processor.
  
! '-mfdpic'
       Generate code using the FDPIC ABI.
  
  
  File: gcc.info,  Node: Solaris 2 Options,  Next: SPARC Options,  Prev: SH Options,  Up: Submodel Options
  
  3.18.43 Solaris 2 Options
  -------------------------
  
! These '-m' options are supported on Solaris 2:
  
! '-mclear-hwcap'
!      '-mclear-hwcap' tells the compiler to remove the hardware
       capabilities generated by the Solaris assembler.  This is only
!      necessary when object files use ISA extensions not supported by the
!      current machine, but check at runtime whether or not to use them.
  
! '-mimpure-text'
!      '-mimpure-text', used in addition to '-shared', tells the compiler
!      to not pass '-z text' to the linker when linking a shared object.
       Using this option, you can link position-dependent code into a
       shared object.
  
!      '-mimpure-text' suppresses the "relocations remain against
       allocatable but non-writable sections" linker error message.
       However, the necessary relocations trigger copy-on-write, and the
       shared object is not actually shared across processes.  Instead of
!      using '-mimpure-text', you should compile all source code with
!      '-fpic' or '-fPIC'.
  
   These switches are supported in addition to the above on Solaris 2:
  
! '-pthreads'
       Add support for multithreading using the POSIX threads library.
       This option sets flags for both the preprocessor and linker.  This
!      option does not affect the thread safety of object code produced by
!      the compiler or that of libraries supplied with it.
  
! '-pthread'
!      This is a synonym for '-pthreads'.
  
  
  File: gcc.info,  Node: SPARC Options,  Next: SPU Options,  Prev: Solaris 2 Options,  Up: Submodel Options
*************** File: gcc.info,  Node: SPARC Options,  N
*** 20291,20350 ****
  3.18.44 SPARC Options
  ---------------------
  
! These `-m' options are supported on the SPARC:
  
! `-mno-app-regs'
! `-mapp-regs'
!      Specify `-mapp-regs' to generate output using the global registers
       2 through 4, which the SPARC SVR4 ABI reserves for applications.
       Like the global register 1, each global register 2 through 4 is
!      then treated as an allocable register that is clobbered by
!      function calls.  This is the default.
  
       To be fully SVR4 ABI-compliant at the cost of some performance
!      loss, specify `-mno-app-regs'.  You should compile libraries and
       system software with this option.
  
! `-mflat'
! `-mno-flat'
!      With `-mflat', the compiler does not generate save/restore
       instructions and uses a "flat" or single register window model.
       This model is compatible with the regular register window model.
!      The local registers and the input registers (0-5) are still
!      treated as "call-saved" registers and are saved on the stack as
!      needed.
  
!      With `-mno-flat' (the default), the compiler generates save/restore
       instructions (except for leaf functions).  This is the normal
       operating mode.
  
! `-mfpu'
! `-mhard-float'
       Generate output containing floating-point instructions.  This is
       the default.
  
! `-mno-fpu'
! `-msoft-float'
       Generate output containing library calls for floating point.
       *Warning:* the requisite libraries are not available for all SPARC
!      targets.  Normally the facilities of the machine's usual C
!      compiler are used, but this cannot be done directly in
!      cross-compilation.  You must make your own arrangements to provide
!      suitable library functions for cross-compilation.  The embedded
!      targets `sparc-*-aout' and `sparclite-*-*' do provide software
       floating-point support.
  
!      `-msoft-float' changes the calling convention in the output file;
       therefore, it is only useful if you compile _all_ of a program with
!      this option.  In particular, you need to compile `libgcc.a', the
!      library that comes with GCC, with `-msoft-float' in order for this
       to work.
  
! `-mhard-quad-float'
       Generate output containing quad-word (long double) floating-point
       instructions.
  
! `-msoft-quad-float'
       Generate output containing library calls for quad-word (long
       double) floating-point instructions.  The functions called are
       those specified in the SPARC ABI.  This is the default.
--- 20180,20238 ----
  3.18.44 SPARC Options
  ---------------------
  
! These '-m' options are supported on the SPARC:
  
! '-mno-app-regs'
! '-mapp-regs'
!      Specify '-mapp-regs' to generate output using the global registers
       2 through 4, which the SPARC SVR4 ABI reserves for applications.
       Like the global register 1, each global register 2 through 4 is
!      then treated as an allocable register that is clobbered by function
!      calls.  This is the default.
  
       To be fully SVR4 ABI-compliant at the cost of some performance
!      loss, specify '-mno-app-regs'.  You should compile libraries and
       system software with this option.
  
! '-mflat'
! '-mno-flat'
!      With '-mflat', the compiler does not generate save/restore
       instructions and uses a "flat" or single register window model.
       This model is compatible with the regular register window model.
!      The local registers and the input registers (0-5) are still treated
!      as "call-saved" registers and are saved on the stack as needed.
  
!      With '-mno-flat' (the default), the compiler generates save/restore
       instructions (except for leaf functions).  This is the normal
       operating mode.
  
! '-mfpu'
! '-mhard-float'
       Generate output containing floating-point instructions.  This is
       the default.
  
! '-mno-fpu'
! '-msoft-float'
       Generate output containing library calls for floating point.
       *Warning:* the requisite libraries are not available for all SPARC
!      targets.  Normally the facilities of the machine's usual C compiler
!      are used, but this cannot be done directly in cross-compilation.
!      You must make your own arrangements to provide suitable library
!      functions for cross-compilation.  The embedded targets
!      'sparc-*-aout' and 'sparclite-*-*' do provide software
       floating-point support.
  
!      '-msoft-float' changes the calling convention in the output file;
       therefore, it is only useful if you compile _all_ of a program with
!      this option.  In particular, you need to compile 'libgcc.a', the
!      library that comes with GCC, with '-msoft-float' in order for this
       to work.
  
! '-mhard-quad-float'
       Generate output containing quad-word (long double) floating-point
       instructions.
  
! '-msoft-quad-float'
       Generate output containing library calls for quad-word (long
       double) floating-point instructions.  The functions called are
       those specified in the SPARC ABI.  This is the default.
*************** These `-m' options are supported on the
*** 20354,20367 ****
       They all invoke a trap handler for one of these instructions, and
       then the trap handler emulates the effect of the instruction.
       Because of the trap handler overhead, this is much slower than
!      calling the ABI library routines.  Thus the `-msoft-quad-float'
       option is the default.
  
! `-mno-unaligned-doubles'
! `-munaligned-doubles'
       Assume that doubles have 8-byte alignment.  This is the default.
  
!      With `-munaligned-doubles', GCC assumes that doubles have 8-byte
       alignment only if they are contained in another type, or if they
       have an absolute address.  Otherwise, it assumes they have 4-byte
       alignment.  Specifying this option avoids some rare compatibility
--- 20242,20255 ----
       They all invoke a trap handler for one of these instructions, and
       then the trap handler emulates the effect of the instruction.
       Because of the trap handler overhead, this is much slower than
!      calling the ABI library routines.  Thus the '-msoft-quad-float'
       option is the default.
  
! '-mno-unaligned-doubles'
! '-munaligned-doubles'
       Assume that doubles have 8-byte alignment.  This is the default.
  
!      With '-munaligned-doubles', GCC assumes that doubles have 8-byte
       alignment only if they are contained in another type, or if they
       have an absolute address.  Otherwise, it assumes they have 4-byte
       alignment.  Specifying this option avoids some rare compatibility
*************** These `-m' options are supported on the
*** 20369,20628 ****
       default because it results in a performance loss, especially for
       floating-point code.
  
! `-muser-mode'
! `-mno-user-mode'
!      Do not generate code that can only run in supervisor mode.  This
!      is relevant only for the `casa' instruction emitted for the LEON3
       processor.  This is the default.
  
! `-mfaster-structs'
! `-mno-faster-structs'
!      With `-mfaster-structs', the compiler assumes that structures
       should have 8-byte alignment.  This enables the use of pairs of
!      `ldd' and `std' instructions for copies in structure assignment,
!      in place of twice as many `ld' and `st' pairs.  However, the use
!      of this changed alignment directly violates the SPARC ABI.  Thus,
!      it's intended only for use on targets where the developer
!      acknowledges that their resulting code is not directly in line with
!      the rules of the ABI.
  
! `-mstd-struct-return'
! `-mno-std-struct-return'
!      With `-mstd-struct-return', the compiler generates checking code
!      in functions returning structures or unions to detect size
!      mismatches between the two sides of function calls, as per the
!      32-bit ABI.
  
!      The default is `-mno-std-struct-return'.  This option has no effect
       in 64-bit mode.
  
! `-mcpu=CPU_TYPE'
       Set the instruction set, register set, and instruction scheduling
       parameters for machine type CPU_TYPE.  Supported values for
!      CPU_TYPE are `v7', `cypress', `v8', `supersparc', `hypersparc',
!      `leon', `leon3', `leon3v7', `sparclite', `f930', `f934',
!      `sparclite86x', `sparclet', `tsc701', `v9', `ultrasparc',
!      `ultrasparc3', `niagara', `niagara2', `niagara3', `niagara4' and
!      `niagara7'.
  
       Native Solaris and GNU/Linux toolchains also support the value
!      `native', which selects the best architecture option for the host
!      processor.  `-mcpu=native' has no effect if GCC does not recognize
       the processor.
  
       Default instruction scheduling parameters are used for values that
!      select an architecture and not an implementation.  These are `v7',
!      `v8', `sparclite', `sparclet', `v9'.
  
       Here is a list of each supported architecture and their supported
       implementations.
  
!     v7
            cypress, leon3v7
  
!     v8
            supersparc, hypersparc, leon, leon3
  
!     sparclite
            f930, f934, sparclite86x
  
!     sparclet
            tsc701
  
!     v9
            ultrasparc, ultrasparc3, niagara, niagara2, niagara3,
            niagara4, niagara7
  
       By default (unless configured otherwise), GCC generates code for
!      the V7 variant of the SPARC architecture.  With `-mcpu=cypress',
       the compiler additionally optimizes it for the Cypress CY7C602
       chip, as used in the SPARCStation/SPARCServer 3xx series.  This is
       also appropriate for the older SPARCStation 1, 2, IPX etc.
  
!      With `-mcpu=v8', GCC generates code for the V8 variant of the SPARC
       architecture.  The only difference from V7 code is that the
!      compiler emits the integer multiply and integer divide
!      instructions which exist in SPARC-V8 but not in SPARC-V7.  With
!      `-mcpu=supersparc', the compiler additionally optimizes it for the
       SuperSPARC chip, as used in the SPARCStation 10, 1000 and 2000
       series.
  
!      With `-mcpu=sparclite', GCC generates code for the SPARClite
!      variant of the SPARC architecture.  This adds the integer
!      multiply, integer divide step and scan (`ffs') instructions which
!      exist in SPARClite but not in SPARC-V7.  With `-mcpu=f930', the
!      compiler additionally optimizes it for the Fujitsu MB86930 chip,
!      which is the original SPARClite, with no FPU.  With `-mcpu=f934',
!      the compiler additionally optimizes it for the Fujitsu MB86934
!      chip, which is the more recent SPARClite with FPU.
  
!      With `-mcpu=sparclet', GCC generates code for the SPARClet variant
       of the SPARC architecture.  This adds the integer multiply,
!      multiply/accumulate, integer divide step and scan (`ffs')
       instructions which exist in SPARClet but not in SPARC-V7.  With
!      `-mcpu=tsc701', the compiler additionally optimizes it for the
       TEMIC SPARClet chip.
  
!      With `-mcpu=v9', GCC generates code for the V9 variant of the SPARC
       architecture.  This adds 64-bit integer and floating-point move
       instructions, 3 additional floating-point condition code registers
!      and conditional move instructions.  With `-mcpu=ultrasparc', the
       compiler additionally optimizes it for the Sun UltraSPARC I/II/IIi
!      chips.  With `-mcpu=ultrasparc3', the compiler additionally
       optimizes it for the Sun UltraSPARC III/III+/IIIi/IIIi+/IV/IV+
!      chips.  With `-mcpu=niagara', the compiler additionally optimizes
!      it for Sun UltraSPARC T1 chips.  With `-mcpu=niagara2', the
       compiler additionally optimizes it for Sun UltraSPARC T2 chips.
!      With `-mcpu=niagara3', the compiler additionally optimizes it for
!      Sun UltraSPARC T3 chips.  With `-mcpu=niagara4', the compiler
       additionally optimizes it for Sun UltraSPARC T4 chips.  With
!      `-mcpu=niagara7', the compiler additionally optimizes it for
!      Oracle SPARC M7 chips.
  
! `-mtune=CPU_TYPE'
       Set the instruction scheduling parameters for machine type
       CPU_TYPE, but do not set the instruction set or register set that
!      the option `-mcpu=CPU_TYPE' does.
  
!      The same values for `-mcpu=CPU_TYPE' can be used for
!      `-mtune=CPU_TYPE', but the only useful values are those that
!      select a particular CPU implementation.  Those are `cypress',
!      `supersparc', `hypersparc', `leon', `leon3', `leon3v7', `f930',
!      `f934', `sparclite86x', `tsc701', `ultrasparc', `ultrasparc3',
!      `niagara', `niagara2', `niagara3', `niagara4' and `niagara7'.
!      With native Solaris and GNU/Linux toolchains, `native' can also be
!      used.
  
! `-mv8plus'
! `-mno-v8plus'
!      With `-mv8plus', GCC generates code for the SPARC-V8+ ABI.  The
       difference from the V8 ABI is that the global and out registers are
       considered 64 bits wide.  This is enabled by default on Solaris in
       32-bit mode for all SPARC-V9 processors.
  
! `-mvis'
! `-mno-vis'
!      With `-mvis', GCC generates code that takes advantage of the
       UltraSPARC Visual Instruction Set extensions.  The default is
!      `-mno-vis'.
  
! `-mvis2'
! `-mno-vis2'
!      With `-mvis2', GCC generates code that takes advantage of version
       2.0 of the UltraSPARC Visual Instruction Set extensions.  The
!      default is `-mvis2' when targeting a cpu that supports such
!      instructions, such as UltraSPARC-III and later.  Setting `-mvis2'
!      also sets `-mvis'.
  
! `-mvis3'
! `-mno-vis3'
!      With `-mvis3', GCC generates code that takes advantage of version
       3.0 of the UltraSPARC Visual Instruction Set extensions.  The
!      default is `-mvis3' when targeting a cpu that supports such
!      instructions, such as niagara-3 and later.  Setting `-mvis3' also
!      sets `-mvis2' and `-mvis'.
  
! `-mvis4'
! `-mno-vis4'
!      With `-mvis4', GCC generates code that takes advantage of version
       4.0 of the UltraSPARC Visual Instruction Set extensions.  The
!      default is `-mvis4' when targeting a cpu that supports such
!      instructions, such as niagara-7 and later.  Setting `-mvis4' also
!      sets `-mvis3', `-mvis2' and `-mvis'.
  
! `-mcbcond'
! `-mno-cbcond'
!      With `-mcbcond', GCC generates code that takes advantage of
       compare-and-branch instructions, as defined in the Sparc
!      Architecture 2011.  The default is `-mcbcond' when targeting a cpu
       that supports such instructions, such as niagara-4 and later.
  
! `-mpopc'
! `-mno-popc'
!      With `-mpopc', GCC generates code that takes advantage of the
!      UltraSPARC population count instruction.  The default is `-mpopc'
       when targeting a cpu that supports such instructions, such as
       Niagara-2 and later.
  
! `-mfmaf'
! `-mno-fmaf'
!      With `-mfmaf', GCC generates code that takes advantage of the
       UltraSPARC Fused Multiply-Add Floating-point extensions.  The
!      default is `-mfmaf' when targeting a cpu that supports such
       instructions, such as Niagara-3 and later.
  
! `-mfix-at697f'
       Enable the documented workaround for the single erratum of the
       Atmel AT697F processor (which corresponds to erratum #13 of the
       AT697E processor).
  
! `-mfix-ut699'
!      Enable the documented workarounds for the floating-point errata
!      and the data cache nullify errata of the UT699 processor.
  
!  These `-m' options are supported in addition to the above on SPARC-V9
  processors in 64-bit environments:
  
! `-m32'
! `-m64'
       Generate code for a 32-bit or 64-bit environment.  The 32-bit
       environment sets int, long and pointer to 32 bits.  The 64-bit
       environment sets int to 32 bits and long and pointer to 64 bits.
  
! `-mcmodel=WHICH'
       Set the code model to one of
  
!     `medlow'
            The Medium/Low code model: 64-bit addresses, programs must be
            linked in the low 32 bits of memory.  Programs can be
            statically or dynamically linked.
  
!     `medmid'
            The Medium/Middle code model: 64-bit addresses, programs must
            be linked in the low 44 bits of memory, the text and data
            segments must be less than 2GB in size and the data segment
            must be located within 2GB of the text segment.
  
!     `medany'
!           The Medium/Anywhere code model: 64-bit addresses, programs
!           may be linked anywhere in memory, the text and data segments
!           must be less than 2GB in size and the data segment must be
!           located within 2GB of the text segment.
  
!     `embmedany'
            The Medium/Anywhere code model for embedded systems: 64-bit
            addresses, the text and data segments must be less than 2GB in
            size, both starting anywhere in memory (determined at link
!           time).  The global register %g4 points to the base of the
!           data segment.  Programs are statically linked and PIC is not
            supported.
  
! `-mmemory-model=MEM-MODEL'
       Set the memory model in force on the processor to one of
  
!     `default'
            The default memory model for the processor and operating
            system.
  
!     `rmo'
            Relaxed Memory Order
  
!     `pso'
            Partial Store Order
  
!     `tso'
            Total Store Order
  
!     `sc'
            Sequential Consistency
  
!      These memory models are formally defined in Appendix D of the
!      Sparc V9 architecture manual, as set in the processor's
!      `PSTATE.MM' field.
  
! `-mstack-bias'
! `-mno-stack-bias'
!      With `-mstack-bias', GCC assumes that the stack pointer, and frame
       pointer if present, are offset by -2047 which must be added back
       when making stack frame references.  This is the default in 64-bit
       mode.  Otherwise, assume no such offset is present.
--- 20257,20514 ----
       default because it results in a performance loss, especially for
       floating-point code.
  
! '-muser-mode'
! '-mno-user-mode'
!      Do not generate code that can only run in supervisor mode.  This is
!      relevant only for the 'casa' instruction emitted for the LEON3
       processor.  This is the default.
  
! '-mfaster-structs'
! '-mno-faster-structs'
!      With '-mfaster-structs', the compiler assumes that structures
       should have 8-byte alignment.  This enables the use of pairs of
!      'ldd' and 'std' instructions for copies in structure assignment, in
!      place of twice as many 'ld' and 'st' pairs.  However, the use of
!      this changed alignment directly violates the SPARC ABI.  Thus, it's
!      intended only for use on targets where the developer acknowledges
!      that their resulting code is not directly in line with the rules of
!      the ABI.
  
! '-mstd-struct-return'
! '-mno-std-struct-return'
!      With '-mstd-struct-return', the compiler generates checking code in
!      functions returning structures or unions to detect size mismatches
!      between the two sides of function calls, as per the 32-bit ABI.
  
!      The default is '-mno-std-struct-return'.  This option has no effect
       in 64-bit mode.
  
! '-mcpu=CPU_TYPE'
       Set the instruction set, register set, and instruction scheduling
       parameters for machine type CPU_TYPE.  Supported values for
!      CPU_TYPE are 'v7', 'cypress', 'v8', 'supersparc', 'hypersparc',
!      'leon', 'leon3', 'leon3v7', 'sparclite', 'f930', 'f934',
!      'sparclite86x', 'sparclet', 'tsc701', 'v9', 'ultrasparc',
!      'ultrasparc3', 'niagara', 'niagara2', 'niagara3', 'niagara4' and
!      'niagara7'.
  
       Native Solaris and GNU/Linux toolchains also support the value
!      'native', which selects the best architecture option for the host
!      processor.  '-mcpu=native' has no effect if GCC does not recognize
       the processor.
  
       Default instruction scheduling parameters are used for values that
!      select an architecture and not an implementation.  These are 'v7',
!      'v8', 'sparclite', 'sparclet', 'v9'.
  
       Here is a list of each supported architecture and their supported
       implementations.
  
!      v7
            cypress, leon3v7
  
!      v8
            supersparc, hypersparc, leon, leon3
  
!      sparclite
            f930, f934, sparclite86x
  
!      sparclet
            tsc701
  
!      v9
            ultrasparc, ultrasparc3, niagara, niagara2, niagara3,
            niagara4, niagara7
  
       By default (unless configured otherwise), GCC generates code for
!      the V7 variant of the SPARC architecture.  With '-mcpu=cypress',
       the compiler additionally optimizes it for the Cypress CY7C602
       chip, as used in the SPARCStation/SPARCServer 3xx series.  This is
       also appropriate for the older SPARCStation 1, 2, IPX etc.
  
!      With '-mcpu=v8', GCC generates code for the V8 variant of the SPARC
       architecture.  The only difference from V7 code is that the
!      compiler emits the integer multiply and integer divide instructions
!      which exist in SPARC-V8 but not in SPARC-V7.  With
!      '-mcpu=supersparc', the compiler additionally optimizes it for the
       SuperSPARC chip, as used in the SPARCStation 10, 1000 and 2000
       series.
  
!      With '-mcpu=sparclite', GCC generates code for the SPARClite
!      variant of the SPARC architecture.  This adds the integer multiply,
!      integer divide step and scan ('ffs') instructions which exist in
!      SPARClite but not in SPARC-V7.  With '-mcpu=f930', the compiler
!      additionally optimizes it for the Fujitsu MB86930 chip, which is
!      the original SPARClite, with no FPU.  With '-mcpu=f934', the
!      compiler additionally optimizes it for the Fujitsu MB86934 chip,
!      which is the more recent SPARClite with FPU.
  
!      With '-mcpu=sparclet', GCC generates code for the SPARClet variant
       of the SPARC architecture.  This adds the integer multiply,
!      multiply/accumulate, integer divide step and scan ('ffs')
       instructions which exist in SPARClet but not in SPARC-V7.  With
!      '-mcpu=tsc701', the compiler additionally optimizes it for the
       TEMIC SPARClet chip.
  
!      With '-mcpu=v9', GCC generates code for the V9 variant of the SPARC
       architecture.  This adds 64-bit integer and floating-point move
       instructions, 3 additional floating-point condition code registers
!      and conditional move instructions.  With '-mcpu=ultrasparc', the
       compiler additionally optimizes it for the Sun UltraSPARC I/II/IIi
!      chips.  With '-mcpu=ultrasparc3', the compiler additionally
       optimizes it for the Sun UltraSPARC III/III+/IIIi/IIIi+/IV/IV+
!      chips.  With '-mcpu=niagara', the compiler additionally optimizes
!      it for Sun UltraSPARC T1 chips.  With '-mcpu=niagara2', the
       compiler additionally optimizes it for Sun UltraSPARC T2 chips.
!      With '-mcpu=niagara3', the compiler additionally optimizes it for
!      Sun UltraSPARC T3 chips.  With '-mcpu=niagara4', the compiler
       additionally optimizes it for Sun UltraSPARC T4 chips.  With
!      '-mcpu=niagara7', the compiler additionally optimizes it for Oracle
!      SPARC M7 chips.
  
! '-mtune=CPU_TYPE'
       Set the instruction scheduling parameters for machine type
       CPU_TYPE, but do not set the instruction set or register set that
!      the option '-mcpu=CPU_TYPE' does.
  
!      The same values for '-mcpu=CPU_TYPE' can be used for
!      '-mtune=CPU_TYPE', but the only useful values are those that select
!      a particular CPU implementation.  Those are 'cypress',
!      'supersparc', 'hypersparc', 'leon', 'leon3', 'leon3v7', 'f930',
!      'f934', 'sparclite86x', 'tsc701', 'ultrasparc', 'ultrasparc3',
!      'niagara', 'niagara2', 'niagara3', 'niagara4' and 'niagara7'.  With
!      native Solaris and GNU/Linux toolchains, 'native' can also be used.
  
! '-mv8plus'
! '-mno-v8plus'
!      With '-mv8plus', GCC generates code for the SPARC-V8+ ABI.  The
       difference from the V8 ABI is that the global and out registers are
       considered 64 bits wide.  This is enabled by default on Solaris in
       32-bit mode for all SPARC-V9 processors.
  
! '-mvis'
! '-mno-vis'
!      With '-mvis', GCC generates code that takes advantage of the
       UltraSPARC Visual Instruction Set extensions.  The default is
!      '-mno-vis'.
  
! '-mvis2'
! '-mno-vis2'
!      With '-mvis2', GCC generates code that takes advantage of version
       2.0 of the UltraSPARC Visual Instruction Set extensions.  The
!      default is '-mvis2' when targeting a cpu that supports such
!      instructions, such as UltraSPARC-III and later.  Setting '-mvis2'
!      also sets '-mvis'.
  
! '-mvis3'
! '-mno-vis3'
!      With '-mvis3', GCC generates code that takes advantage of version
       3.0 of the UltraSPARC Visual Instruction Set extensions.  The
!      default is '-mvis3' when targeting a cpu that supports such
!      instructions, such as niagara-3 and later.  Setting '-mvis3' also
!      sets '-mvis2' and '-mvis'.
  
! '-mvis4'
! '-mno-vis4'
!      With '-mvis4', GCC generates code that takes advantage of version
       4.0 of the UltraSPARC Visual Instruction Set extensions.  The
!      default is '-mvis4' when targeting a cpu that supports such
!      instructions, such as niagara-7 and later.  Setting '-mvis4' also
!      sets '-mvis3', '-mvis2' and '-mvis'.
  
! '-mcbcond'
! '-mno-cbcond'
!      With '-mcbcond', GCC generates code that takes advantage of
       compare-and-branch instructions, as defined in the Sparc
!      Architecture 2011.  The default is '-mcbcond' when targeting a cpu
       that supports such instructions, such as niagara-4 and later.
  
! '-mpopc'
! '-mno-popc'
!      With '-mpopc', GCC generates code that takes advantage of the
!      UltraSPARC population count instruction.  The default is '-mpopc'
       when targeting a cpu that supports such instructions, such as
       Niagara-2 and later.
  
! '-mfmaf'
! '-mno-fmaf'
!      With '-mfmaf', GCC generates code that takes advantage of the
       UltraSPARC Fused Multiply-Add Floating-point extensions.  The
!      default is '-mfmaf' when targeting a cpu that supports such
       instructions, such as Niagara-3 and later.
  
! '-mfix-at697f'
       Enable the documented workaround for the single erratum of the
       Atmel AT697F processor (which corresponds to erratum #13 of the
       AT697E processor).
  
! '-mfix-ut699'
!      Enable the documented workarounds for the floating-point errata and
!      the data cache nullify errata of the UT699 processor.
  
!  These '-m' options are supported in addition to the above on SPARC-V9
  processors in 64-bit environments:
  
! '-m32'
! '-m64'
       Generate code for a 32-bit or 64-bit environment.  The 32-bit
       environment sets int, long and pointer to 32 bits.  The 64-bit
       environment sets int to 32 bits and long and pointer to 64 bits.
  
! '-mcmodel=WHICH'
       Set the code model to one of
  
!      'medlow'
            The Medium/Low code model: 64-bit addresses, programs must be
            linked in the low 32 bits of memory.  Programs can be
            statically or dynamically linked.
  
!      'medmid'
            The Medium/Middle code model: 64-bit addresses, programs must
            be linked in the low 44 bits of memory, the text and data
            segments must be less than 2GB in size and the data segment
            must be located within 2GB of the text segment.
  
!      'medany'
!           The Medium/Anywhere code model: 64-bit addresses, programs may
!           be linked anywhere in memory, the text and data segments must
!           be less than 2GB in size and the data segment must be located
!           within 2GB of the text segment.
  
!      'embmedany'
            The Medium/Anywhere code model for embedded systems: 64-bit
            addresses, the text and data segments must be less than 2GB in
            size, both starting anywhere in memory (determined at link
!           time).  The global register %g4 points to the base of the data
!           segment.  Programs are statically linked and PIC is not
            supported.
  
! '-mmemory-model=MEM-MODEL'
       Set the memory model in force on the processor to one of
  
!      'default'
            The default memory model for the processor and operating
            system.
  
!      'rmo'
            Relaxed Memory Order
  
!      'pso'
            Partial Store Order
  
!      'tso'
            Total Store Order
  
!      'sc'
            Sequential Consistency
  
!      These memory models are formally defined in Appendix D of the Sparc
!      V9 architecture manual, as set in the processor's 'PSTATE.MM'
!      field.
  
! '-mstack-bias'
! '-mno-stack-bias'
!      With '-mstack-bias', GCC assumes that the stack pointer, and frame
       pointer if present, are offset by -2047 which must be added back
       when making stack frame references.  This is the default in 64-bit
       mode.  Otherwise, assume no such offset is present.
*************** File: gcc.info,  Node: SPU Options,  Nex
*** 20633,20744 ****
  3.18.45 SPU Options
  -------------------
  
! These `-m' options are supported on the SPU:
  
- `-mwarn-reloc'
- `-merror-reloc'
       The loader for SPU does not handle dynamic relocations.  By
       default, GCC gives an error when it generates code that requires a
!      dynamic relocation.  `-mno-error-reloc' disables the error,
!      `-mwarn-reloc' generates a warning instead.
  
- `-msafe-dma'
- `-munsafe-dma'
       Instructions that initiate or test completion of DMA must not be
       reordered with respect to loads and stores of the memory that is
!      being accessed.  With `-munsafe-dma' you must use the `volatile'
       keyword to protect memory accesses, but that can lead to
!      inefficient code in places where the memory is known to not
!      change.  Rather than mark the memory as volatile, you can use
!      `-msafe-dma' to tell the compiler to treat the DMA instructions as
!      potentially affecting all memory.
  
- `-mbranch-hints'
       By default, GCC generates a branch hint instruction to avoid
       pipeline stalls for always-taken or probably-taken branches.  A
       hint is not generated closer than 8 instructions away from its
       branch.  There is little reason to disable them, except for
       debugging purposes, or to make an object a little bit smaller.
  
! `-msmall-mem'
! `-mlarge-mem'
       By default, GCC generates code assuming that addresses are never
!      larger than 18 bits.  With `-mlarge-mem' code is generated that
       assumes a full 32-bit address.
  
! `-mstdmain'
       By default, GCC links against startup code that assumes the
       SPU-style main function interface (which has an unconventional
!      parameter list).  With `-mstdmain', GCC links your program against
!      startup code that assumes a C99-style interface to `main',
!      including a local copy of `argv' strings.
  
! `-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator cannot use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! `-mea32'
! `-mea64'
       Compile code assuming that pointers to the PPU address space
!      accessed via the `__ea' named address space qualifier are either
!      32 or 64 bits wide.  The default is 32 bits.  As this is an
       ABI-changing option, all object code in an executable must be
       compiled with the same setting.
  
! `-maddress-space-conversion'
! `-mno-address-space-conversion'
!      Allow/disallow treating the `__ea' address space as superset of
!      the generic address space.  This enables explicit type casts
!      between `__ea' and generic pointer as well as implicit conversions
!      of generic pointers to `__ea' pointers.  The default is to allow
       address space pointer conversions.
  
! `-mcache-size=CACHE-SIZE'
       This option controls the version of libgcc that the compiler links
!      to an executable and selects a software-managed cache for
!      accessing variables in the `__ea' address space with a particular
!      cache size.  Possible options for CACHE-SIZE are `8', `16', `32',
!      `64' and `128'.  The default cache size is 64KB.
  
! `-matomic-updates'
! `-mno-atomic-updates'
       This option controls the version of libgcc that the compiler links
       to an executable and selects whether atomic updates to the
       software-managed cache of PPU-side variables are used.  If you use
       atomic updates, changes to a PPU variable from SPU code using the
!      `__ea' named address space qualifier do not interfere with changes
       to other PPU variables residing in the same cache line from PPU
       code.  If you do not use atomic updates, such interference may
       occur; however, writing back cache lines is more efficient.  The
       default behavior is to use atomic updates.
  
! `-mdual-nops'
! `-mdual-nops=N'
       By default, GCC inserts nops to increase dual issue when it expects
       it to increase performance.  N can be a value from 0 to 10.  A
       smaller N inserts fewer nops.  10 is the default, 0 is the same as
!      `-mno-dual-nops'.  Disabled with `-Os'.
  
! `-mhint-max-nops=N'
       Maximum number of nops to insert for a branch hint.  A branch hint
       must be at least 8 instructions away from the branch it is
       affecting.  GCC inserts up to N nops to enforce this, otherwise it
       does not generate the branch hint.
  
! `-mhint-max-distance=N'
       The encoding of the branch hint instruction limits the hint to be
!      within 256 instructions of the branch it is affecting.  By
!      default, GCC makes sure it is within 125.
  
! `-msafe-hints'
       Work around a hardware bug that causes the SPU to stall
!      indefinitely.  By default, GCC inserts the `hbrp' instruction to
       make sure this stall won't happen.
  
- 
  
  File: gcc.info,  Node: System V Options,  Next: TILE-Gx Options,  Prev: SPU Options,  Up: Submodel Options
  
--- 20519,20634 ----
  3.18.45 SPU Options
  -------------------
  
! These '-m' options are supported on the SPU:
! 
! '-mwarn-reloc'
! '-merror-reloc'
  
       The loader for SPU does not handle dynamic relocations.  By
       default, GCC gives an error when it generates code that requires a
!      dynamic relocation.  '-mno-error-reloc' disables the error,
!      '-mwarn-reloc' generates a warning instead.
! 
! '-msafe-dma'
! '-munsafe-dma'
  
       Instructions that initiate or test completion of DMA must not be
       reordered with respect to loads and stores of the memory that is
!      being accessed.  With '-munsafe-dma' you must use the 'volatile'
       keyword to protect memory accesses, but that can lead to
!      inefficient code in places where the memory is known to not change.
!      Rather than mark the memory as volatile, you can use '-msafe-dma'
!      to tell the compiler to treat the DMA instructions as potentially
!      affecting all memory.
! 
! '-mbranch-hints'
  
       By default, GCC generates a branch hint instruction to avoid
       pipeline stalls for always-taken or probably-taken branches.  A
       hint is not generated closer than 8 instructions away from its
       branch.  There is little reason to disable them, except for
       debugging purposes, or to make an object a little bit smaller.
  
! '-msmall-mem'
! '-mlarge-mem'
! 
       By default, GCC generates code assuming that addresses are never
!      larger than 18 bits.  With '-mlarge-mem' code is generated that
       assumes a full 32-bit address.
  
! '-mstdmain'
! 
       By default, GCC links against startup code that assumes the
       SPU-style main function interface (which has an unconventional
!      parameter list).  With '-mstdmain', GCC links your program against
!      startup code that assumes a C99-style interface to 'main',
!      including a local copy of 'argv' strings.
  
! '-mfixed-range=REGISTER-RANGE'
       Generate code treating the given register range as fixed registers.
       A fixed register is one that the register allocator cannot use.
       This is useful when compiling kernel code.  A register range is
       specified as two registers separated by a dash.  Multiple register
       ranges can be specified separated by a comma.
  
! '-mea32'
! '-mea64'
       Compile code assuming that pointers to the PPU address space
!      accessed via the '__ea' named address space qualifier are either 32
!      or 64 bits wide.  The default is 32 bits.  As this is an
       ABI-changing option, all object code in an executable must be
       compiled with the same setting.
  
! '-maddress-space-conversion'
! '-mno-address-space-conversion'
!      Allow/disallow treating the '__ea' address space as superset of the
!      generic address space.  This enables explicit type casts between
!      '__ea' and generic pointer as well as implicit conversions of
!      generic pointers to '__ea' pointers.  The default is to allow
       address space pointer conversions.
  
! '-mcache-size=CACHE-SIZE'
       This option controls the version of libgcc that the compiler links
!      to an executable and selects a software-managed cache for accessing
!      variables in the '__ea' address space with a particular cache size.
!      Possible options for CACHE-SIZE are '8', '16', '32', '64' and
!      '128'.  The default cache size is 64KB.
  
! '-matomic-updates'
! '-mno-atomic-updates'
       This option controls the version of libgcc that the compiler links
       to an executable and selects whether atomic updates to the
       software-managed cache of PPU-side variables are used.  If you use
       atomic updates, changes to a PPU variable from SPU code using the
!      '__ea' named address space qualifier do not interfere with changes
       to other PPU variables residing in the same cache line from PPU
       code.  If you do not use atomic updates, such interference may
       occur; however, writing back cache lines is more efficient.  The
       default behavior is to use atomic updates.
  
! '-mdual-nops'
! '-mdual-nops=N'
       By default, GCC inserts nops to increase dual issue when it expects
       it to increase performance.  N can be a value from 0 to 10.  A
       smaller N inserts fewer nops.  10 is the default, 0 is the same as
!      '-mno-dual-nops'.  Disabled with '-Os'.
  
! '-mhint-max-nops=N'
       Maximum number of nops to insert for a branch hint.  A branch hint
       must be at least 8 instructions away from the branch it is
       affecting.  GCC inserts up to N nops to enforce this, otherwise it
       does not generate the branch hint.
  
! '-mhint-max-distance=N'
       The encoding of the branch hint instruction limits the hint to be
!      within 256 instructions of the branch it is affecting.  By default,
!      GCC makes sure it is within 125.
  
! '-msafe-hints'
       Work around a hardware bug that causes the SPU to stall
!      indefinitely.  By default, GCC inserts the 'hbrp' instruction to
       make sure this stall won't happen.
  
  
  File: gcc.info,  Node: System V Options,  Next: TILE-Gx Options,  Prev: SPU Options,  Up: Submodel Options
  
*************** File: gcc.info,  Node: System V Options,
*** 20748,20770 ****
  These additional options are available on System V Release 4 for
  compatibility with other compilers on those systems:
  
! `-G'
!      Create a shared object.  It is recommended that `-symbolic' or
!      `-shared' be used instead.
  
! `-Qy'
       Identify the versions of each tool used by the compiler, in a
!      `.ident' assembler directive in the output.
  
! `-Qn'
!      Refrain from adding `.ident' directives to the output file (this is
       the default).
  
! `-YP,DIRS'
!      Search the directories DIRS, and no others, for libraries
!      specified with `-l'.
  
! `-Ym,DIR'
       Look in the directory DIR to find the M4 preprocessor.  The
       assembler uses this option.
  
--- 20638,20660 ----
  These additional options are available on System V Release 4 for
  compatibility with other compilers on those systems:
  
! '-G'
!      Create a shared object.  It is recommended that '-symbolic' or
!      '-shared' be used instead.
  
! '-Qy'
       Identify the versions of each tool used by the compiler, in a
!      '.ident' assembler directive in the output.
  
! '-Qn'
!      Refrain from adding '.ident' directives to the output file (this is
       the default).
  
! '-YP,DIRS'
!      Search the directories DIRS, and no others, for libraries specified
!      with '-l'.
  
! '-Ym,DIR'
       Look in the directory DIR to find the M4 preprocessor.  The
       assembler uses this option.
  
*************** File: gcc.info,  Node: TILE-Gx Options,
*** 20774,20802 ****
  3.18.47 TILE-Gx Options
  -----------------------
  
! These `-m' options are supported on the TILE-Gx:
  
! `-mcmodel=small'
       Generate code for the small model.  The distance for direct calls
       is limited to 500M in either direction.  PC-relative addresses are
       32 bits.  Absolute addresses support the full address range.
  
! `-mcmodel=large'
       Generate code for the large model.  There is no limitation on call
       distance, pc-relative addresses, or absolute addresses.
  
! `-mcpu=NAME'
       Selects the type of CPU to be targeted.  Currently the only
!      supported type is `tilegx'.
  
! `-m32'
! `-m64'
       Generate code for a 32-bit or 64-bit environment.  The 32-bit
       environment sets int, long, and pointer to 32 bits.  The 64-bit
       environment sets int to 32 bits and long and pointer to 64 bits.
  
! `-mbig-endian'
! `-mlittle-endian'
       Generate code in big/little endian mode, respectively.
  
  
--- 20664,20692 ----
  3.18.47 TILE-Gx Options
  -----------------------
  
! These '-m' options are supported on the TILE-Gx:
  
! '-mcmodel=small'
       Generate code for the small model.  The distance for direct calls
       is limited to 500M in either direction.  PC-relative addresses are
       32 bits.  Absolute addresses support the full address range.
  
! '-mcmodel=large'
       Generate code for the large model.  There is no limitation on call
       distance, pc-relative addresses, or absolute addresses.
  
! '-mcpu=NAME'
       Selects the type of CPU to be targeted.  Currently the only
!      supported type is 'tilegx'.
  
! '-m32'
! '-m64'
       Generate code for a 32-bit or 64-bit environment.  The 32-bit
       environment sets int, long, and pointer to 32 bits.  The 64-bit
       environment sets int to 32 bits and long and pointer to 64 bits.
  
! '-mbig-endian'
! '-mlittle-endian'
       Generate code in big/little endian mode, respectively.
  
  
*************** File: gcc.info,  Node: TILEPro Options,
*** 20805,20817 ****
  3.18.48 TILEPro Options
  -----------------------
  
! These `-m' options are supported on the TILEPro:
  
! `-mcpu=NAME'
       Selects the type of CPU to be targeted.  Currently the only
!      supported type is `tilepro'.
  
! `-m32'
       Generate code for a 32-bit environment, which sets int, long, and
       pointer to 32 bits.  This is the only supported behavior so the
       flag is essentially ignored.
--- 20695,20707 ----
  3.18.48 TILEPro Options
  -----------------------
  
! These '-m' options are supported on the TILEPro:
  
! '-mcpu=NAME'
       Selects the type of CPU to be targeted.  Currently the only
!      supported type is 'tilepro'.
  
! '-m32'
       Generate code for a 32-bit environment, which sets int, long, and
       pointer to 32 bits.  This is the only supported behavior so the
       flag is essentially ignored.
*************** File: gcc.info,  Node: V850 Options,  Ne
*** 20822,20949 ****
  3.18.49 V850 Options
  --------------------
  
! These `-m' options are defined for V850 implementations:
  
! `-mlong-calls'
! `-mno-long-calls'
       Treat all calls as being far away (near).  If calls are assumed to
       be far away, the compiler always loads the function's address into
       a register, and calls indirect through the pointer.
  
! `-mno-ep'
! `-mep'
       Do not optimize (do optimize) basic blocks that use the same index
!      pointer 4 or more times to copy pointer into the `ep' register, and
!      use the shorter `sld' and `sst' instructions.  The `-mep' option
!      is on by default if you optimize.
  
! `-mno-prolog-function'
! `-mprolog-function'
       Do not use (do use) external functions to save and restore
!      registers at the prologue and epilogue of a function.  The
!      external functions are slower, but use less code space if more
!      than one function saves the same number of registers.  The
!      `-mprolog-function' option is on by default if you optimize.
  
! `-mspace'
       Try to make the code as small as possible.  At present, this just
!      turns on the `-mep' and `-mprolog-function' options.
  
! `-mtda=N'
       Put static or global variables whose size is N bytes or less into
!      the tiny data area that register `ep' points to.  The tiny data
       area can hold up to 256 bytes in total (128 bytes for byte
       references).
  
! `-msda=N'
       Put static or global variables whose size is N bytes or less into
!      the small data area that register `gp' points to.  The small data
       area can hold up to 64 kilobytes.
  
! `-mzda=N'
       Put static or global variables whose size is N bytes or less into
       the first 32 kilobytes of memory.
  
! `-mv850'
       Specify that the target processor is the V850.
  
! `-mv850e3v5'
       Specify that the target processor is the V850E3V5.  The
!      preprocessor constant `__v850e3v5__' is defined if this option is
       used.
  
! `-mv850e2v4'
       Specify that the target processor is the V850E3V5.  This is an
!      alias for the `-mv850e3v5' option.
  
! `-mv850e2v3'
       Specify that the target processor is the V850E2V3.  The
!      preprocessor constant `__v850e2v3__' is defined if this option is
       used.
  
! `-mv850e2'
       Specify that the target processor is the V850E2.  The preprocessor
!      constant `__v850e2__' is defined if this option is used.
  
! `-mv850e1'
       Specify that the target processor is the V850E1.  The preprocessor
!      constants `__v850e1__' and `__v850e__' are defined if this option
       is used.
  
! `-mv850es'
!      Specify that the target processor is the V850ES.  This is an alias
!      for the `-mv850e1' option.
  
! `-mv850e'
       Specify that the target processor is the V850E.  The preprocessor
!      constant `__v850e__' is defined if this option is used.
  
!      If neither `-mv850' nor `-mv850e' nor `-mv850e1' nor `-mv850e2'
!      nor `-mv850e2v3' nor `-mv850e3v5' are defined then a default
!      target processor is chosen and the relevant `__v850*__'
!      preprocessor constant is defined.
  
!      The preprocessor constants `__v850' and `__v851__' are always
       defined, regardless of which processor variant is the target.
  
! `-mdisable-callt'
! `-mno-disable-callt'
!      This option suppresses generation of the `CALLT' instruction for
       the v850e, v850e1, v850e2, v850e2v3 and v850e3v5 flavors of the
       v850 architecture.
  
!      This option is enabled by default when the RH850 ABI is in use
!      (see `-mrh850-abi'), and disabled by default when the GCC ABI is
!      in use.  If `CALLT' instructions are being generated then the C
!      preprocessor symbol `__V850_CALLT__' is defined.
  
! `-mrelax'
! `-mno-relax'
!      Pass on (or do not pass on) the `-mrelax' command-line option to
       the assembler.
  
! `-mlong-jumps'
! `-mno-long-jumps'
       Disable (or re-enable) the generation of PC-relative jump
       instructions.
  
! `-msoft-float'
! `-mhard-float'
       Disable (or re-enable) the generation of hardware floating point
       instructions.  This option is only significant when the target
!      architecture is `V850E2V3' or higher.  If hardware floating point
       instructions are being generated then the C preprocessor symbol
!      `__FPU_OK__' is defined, otherwise the symbol `__NO_FPU__' is
       defined.
  
! `-mloop'
       Enables the use of the e3v5 LOOP instruction.  The use of this
       instruction is not enabled by default when the e3v5 architecture is
       selected because its use is still experimental.
  
! `-mrh850-abi'
! `-mghs'
!      Enables support for the RH850 version of the V850 ABI.  This is the
       default.  With this version of the ABI the following rules apply:
  
          * Integer sized structures and unions are returned via a memory
--- 20712,20839 ----
  3.18.49 V850 Options
  --------------------
  
! These '-m' options are defined for V850 implementations:
  
! '-mlong-calls'
! '-mno-long-calls'
       Treat all calls as being far away (near).  If calls are assumed to
       be far away, the compiler always loads the function's address into
       a register, and calls indirect through the pointer.
  
! '-mno-ep'
! '-mep'
       Do not optimize (do optimize) basic blocks that use the same index
!      pointer 4 or more times to copy pointer into the 'ep' register, and
!      use the shorter 'sld' and 'sst' instructions.  The '-mep' option is
!      on by default if you optimize.
  
! '-mno-prolog-function'
! '-mprolog-function'
       Do not use (do use) external functions to save and restore
!      registers at the prologue and epilogue of a function.  The external
!      functions are slower, but use less code space if more than one
!      function saves the same number of registers.  The
!      '-mprolog-function' option is on by default if you optimize.
  
! '-mspace'
       Try to make the code as small as possible.  At present, this just
!      turns on the '-mep' and '-mprolog-function' options.
  
! '-mtda=N'
       Put static or global variables whose size is N bytes or less into
!      the tiny data area that register 'ep' points to.  The tiny data
       area can hold up to 256 bytes in total (128 bytes for byte
       references).
  
! '-msda=N'
       Put static or global variables whose size is N bytes or less into
!      the small data area that register 'gp' points to.  The small data
       area can hold up to 64 kilobytes.
  
! '-mzda=N'
       Put static or global variables whose size is N bytes or less into
       the first 32 kilobytes of memory.
  
! '-mv850'
       Specify that the target processor is the V850.
  
! '-mv850e3v5'
       Specify that the target processor is the V850E3V5.  The
!      preprocessor constant '__v850e3v5__' is defined if this option is
       used.
  
! '-mv850e2v4'
       Specify that the target processor is the V850E3V5.  This is an
!      alias for the '-mv850e3v5' option.
  
! '-mv850e2v3'
       Specify that the target processor is the V850E2V3.  The
!      preprocessor constant '__v850e2v3__' is defined if this option is
       used.
  
! '-mv850e2'
       Specify that the target processor is the V850E2.  The preprocessor
!      constant '__v850e2__' is defined if this option is used.
  
! '-mv850e1'
       Specify that the target processor is the V850E1.  The preprocessor
!      constants '__v850e1__' and '__v850e__' are defined if this option
       is used.
  
! '-mv850es'
!      Specify that the target processor is the V850ES. This is an alias
!      for the '-mv850e1' option.
  
! '-mv850e'
       Specify that the target processor is the V850E.  The preprocessor
!      constant '__v850e__' is defined if this option is used.
  
!      If neither '-mv850' nor '-mv850e' nor '-mv850e1' nor '-mv850e2' nor
!      '-mv850e2v3' nor '-mv850e3v5' are defined then a default target
!      processor is chosen and the relevant '__v850*__' preprocessor
!      constant is defined.
  
!      The preprocessor constants '__v850' and '__v851__' are always
       defined, regardless of which processor variant is the target.
  
! '-mdisable-callt'
! '-mno-disable-callt'
!      This option suppresses generation of the 'CALLT' instruction for
       the v850e, v850e1, v850e2, v850e2v3 and v850e3v5 flavors of the
       v850 architecture.
  
!      This option is enabled by default when the RH850 ABI is in use (see
!      '-mrh850-abi'), and disabled by default when the GCC ABI is in use.
!      If 'CALLT' instructions are being generated then the C preprocessor
!      symbol '__V850_CALLT__' is defined.
  
! '-mrelax'
! '-mno-relax'
!      Pass on (or do not pass on) the '-mrelax' command-line option to
       the assembler.
  
! '-mlong-jumps'
! '-mno-long-jumps'
       Disable (or re-enable) the generation of PC-relative jump
       instructions.
  
! '-msoft-float'
! '-mhard-float'
       Disable (or re-enable) the generation of hardware floating point
       instructions.  This option is only significant when the target
!      architecture is 'V850E2V3' or higher.  If hardware floating point
       instructions are being generated then the C preprocessor symbol
!      '__FPU_OK__' is defined, otherwise the symbol '__NO_FPU__' is
       defined.
  
! '-mloop'
       Enables the use of the e3v5 LOOP instruction.  The use of this
       instruction is not enabled by default when the e3v5 architecture is
       selected because its use is still experimental.
  
! '-mrh850-abi'
! '-mghs'
!      Enables support for the RH850 version of the V850 ABI. This is the
       default.  With this version of the ABI the following rules apply:
  
          * Integer sized structures and unions are returned via a memory
*************** These `-m' options are defined for V850
*** 20954,20974 ****
  
          * Functions are aligned to 16-bit boundaries.
  
!         * The `-m8byte-align' command-line option is supported.
  
!         * The `-mdisable-callt' command-line option is enabled by
!           default.  The `-mno-disable-callt' command-line option is not
            supported.
  
       When this version of the ABI is enabled the C preprocessor symbol
!      `__V850_RH850_ABI__' is defined.
  
! `-mgcc-abi'
!      Enables support for the old GCC version of the V850 ABI.  With this
       version of the ABI the following rules apply:
  
          * Integer sized structures and unions are returned in register
!           `r10'.
  
          * Large structures and unions (more than 8 bytes in size) are
            passed by reference.
--- 20844,20864 ----
  
          * Functions are aligned to 16-bit boundaries.
  
!         * The '-m8byte-align' command-line option is supported.
  
!         * The '-mdisable-callt' command-line option is enabled by
!           default.  The '-mno-disable-callt' command-line option is not
            supported.
  
       When this version of the ABI is enabled the C preprocessor symbol
!      '__V850_RH850_ABI__' is defined.
  
! '-mgcc-abi'
!      Enables support for the old GCC version of the V850 ABI. With this
       version of the ABI the following rules apply:
  
          * Integer sized structures and unions are returned in register
!           'r10'.
  
          * Large structures and unions (more than 8 bytes in size) are
            passed by reference.
*************** These `-m' options are defined for V850
*** 20976,21026 ****
          * Functions are aligned to 32-bit boundaries, unless optimizing
            for size.
  
!         * The `-m8byte-align' command-line option is not supported.
  
!         * The `-mdisable-callt' command-line option is supported but not
            enabled by default.
  
       When this version of the ABI is enabled the C preprocessor symbol
!      `__V850_GCC_ABI__' is defined.
  
! `-m8byte-align'
! `-mno-8byte-align'
!      Enables support for `double' and `long long' types to be aligned
!      on 8-byte boundaries.  The default is to restrict the alignment of
!      all objects to at most 4-bytes.  When `-m8byte-align' is in effect
!      the C preprocessor symbol `__V850_8BYTE_ALIGN__' is defined.
  
! `-mbig-switch'
!      Generate code suitable for big switch tables.  Use this option
!      only if the assembler/linker complain about out of range branches
!      within a switch table.
  
! `-mapp-regs'
       This option causes r2 and r5 to be used in the code generated by
       the compiler.  This setting is the default.
  
! `-mno-app-regs'
       This option causes r2 and r5 to be treated as fixed registers.
  
- 
  
  File: gcc.info,  Node: VAX Options,  Next: Visium Options,  Prev: V850 Options,  Up: Submodel Options
  
  3.18.50 VAX Options
  -------------------
  
! These `-m' options are defined for the VAX:
  
! `-munix'
!      Do not output certain jump instructions (`aobleq' and so on) that
       the Unix assembler for the VAX cannot handle across long ranges.
  
! `-mgnu'
       Do output those jump instructions, on the assumption that the GNU
       assembler is being used.
  
! `-mg'
       Output code for G-format floating-point numbers instead of
       D-format.
  
--- 20866,20915 ----
          * Functions are aligned to 32-bit boundaries, unless optimizing
            for size.
  
!         * The '-m8byte-align' command-line option is not supported.
  
!         * The '-mdisable-callt' command-line option is supported but not
            enabled by default.
  
       When this version of the ABI is enabled the C preprocessor symbol
!      '__V850_GCC_ABI__' is defined.
  
! '-m8byte-align'
! '-mno-8byte-align'
!      Enables support for 'double' and 'long long' types to be aligned on
!      8-byte boundaries.  The default is to restrict the alignment of all
!      objects to at most 4-bytes.  When '-m8byte-align' is in effect the
!      C preprocessor symbol '__V850_8BYTE_ALIGN__' is defined.
  
! '-mbig-switch'
!      Generate code suitable for big switch tables.  Use this option only
!      if the assembler/linker complain about out of range branches within
!      a switch table.
  
! '-mapp-regs'
       This option causes r2 and r5 to be used in the code generated by
       the compiler.  This setting is the default.
  
! '-mno-app-regs'
       This option causes r2 and r5 to be treated as fixed registers.
  
  
  File: gcc.info,  Node: VAX Options,  Next: Visium Options,  Prev: V850 Options,  Up: Submodel Options
  
  3.18.50 VAX Options
  -------------------
  
! These '-m' options are defined for the VAX:
  
! '-munix'
!      Do not output certain jump instructions ('aobleq' and so on) that
       the Unix assembler for the VAX cannot handle across long ranges.
  
! '-mgnu'
       Do output those jump instructions, on the assumption that the GNU
       assembler is being used.
  
! '-mg'
       Output code for G-format floating-point numbers instead of
       D-format.
  
*************** File: gcc.info,  Node: Visium Options,
*** 21030,21086 ****
  3.18.51 Visium Options
  ----------------------
  
! `-mdebug'
       A program which performs file I/O and is destined to run on an MCM
       target should be linked with this option.  It causes the libraries
       libc.a and libdebug.a to be linked.  The program should be run on
       the target under the control of the GDB remote debugging stub.
  
! `-msim'
       A program which performs file I/O and is destined to run on the
       simulator should be linked with option.  This causes libraries
       libc.a and libsim.a to be linked.
  
! `-mfpu'
! `-mhard-float'
       Generate code containing floating-point instructions.  This is the
       default.
  
! `-mno-fpu'
! `-msoft-float'
       Generate code containing library calls for floating-point.
  
!      `-msoft-float' changes the calling convention in the output file;
       therefore, it is only useful if you compile _all_ of a program with
!      this option.  In particular, you need to compile `libgcc.a', the
!      library that comes with GCC, with `-msoft-float' in order for this
       to work.
  
! `-mcpu=CPU_TYPE'
       Set the instruction set, register set, and instruction scheduling
       parameters for machine type CPU_TYPE.  Supported values for
!      CPU_TYPE are `mcm', `gr5' and `gr6'.
  
!      `mcm' is a synonym of `gr5' present for backward compatibility.
  
       By default (unless configured otherwise), GCC generates code for
       the GR5 variant of the Visium architecture.
  
!      With `-mcpu=gr6', GCC generates code for the GR6 variant of the
!      Visium architecture.  The only difference from GR5 code is that
!      the compiler will generate block move instructions.
  
! `-mtune=CPU_TYPE'
       Set the instruction scheduling parameters for machine type
       CPU_TYPE, but do not set the instruction set or register set that
!      the option `-mcpu=CPU_TYPE' would.
  
! `-msv-mode'
       Generate code for the supervisor mode, where there are no
       restrictions on the access to general registers.  This is the
       default.
  
! `-muser-mode'
       Generate code for the user mode, where the access to some general
       registers is forbidden: on the GR5, registers r24 to r31 cannot be
       accessed in this mode; on the GR6, only registers r29 to r31 are
--- 20919,20975 ----
  3.18.51 Visium Options
  ----------------------
  
! '-mdebug'
       A program which performs file I/O and is destined to run on an MCM
       target should be linked with this option.  It causes the libraries
       libc.a and libdebug.a to be linked.  The program should be run on
       the target under the control of the GDB remote debugging stub.
  
! '-msim'
       A program which performs file I/O and is destined to run on the
       simulator should be linked with option.  This causes libraries
       libc.a and libsim.a to be linked.
  
! '-mfpu'
! '-mhard-float'
       Generate code containing floating-point instructions.  This is the
       default.
  
! '-mno-fpu'
! '-msoft-float'
       Generate code containing library calls for floating-point.
  
!      '-msoft-float' changes the calling convention in the output file;
       therefore, it is only useful if you compile _all_ of a program with
!      this option.  In particular, you need to compile 'libgcc.a', the
!      library that comes with GCC, with '-msoft-float' in order for this
       to work.
  
! '-mcpu=CPU_TYPE'
       Set the instruction set, register set, and instruction scheduling
       parameters for machine type CPU_TYPE.  Supported values for
!      CPU_TYPE are 'mcm', 'gr5' and 'gr6'.
  
!      'mcm' is a synonym of 'gr5' present for backward compatibility.
  
       By default (unless configured otherwise), GCC generates code for
       the GR5 variant of the Visium architecture.
  
!      With '-mcpu=gr6', GCC generates code for the GR6 variant of the
!      Visium architecture.  The only difference from GR5 code is that the
!      compiler will generate block move instructions.
  
! '-mtune=CPU_TYPE'
       Set the instruction scheduling parameters for machine type
       CPU_TYPE, but do not set the instruction set or register set that
!      the option '-mcpu=CPU_TYPE' would.
  
! '-msv-mode'
       Generate code for the supervisor mode, where there are no
       restrictions on the access to general registers.  This is the
       default.
  
! '-muser-mode'
       Generate code for the user mode, where the access to some general
       registers is forbidden: on the GR5, registers r24 to r31 cannot be
       accessed in this mode; on the GR6, only registers r29 to r31 are
*************** File: gcc.info,  Node: VMS Options,  Nex
*** 21092,21115 ****
  3.18.52 VMS Options
  -------------------
  
! These `-m' options are defined for the VMS implementations:
  
! `-mvms-return-codes'
!      Return VMS condition codes from `main'. The default is to return
       POSIX-style condition (e.g. error) codes.
  
! `-mdebug-main=PREFIX'
       Flag the first routine whose name starts with PREFIX as the main
       routine for the debugger.
  
! `-mmalloc64'
       Default to 64-bit memory allocation routines.
  
! `-mpointer-size=SIZE'
!      Set the default size of pointers. Possible options for SIZE are
!      `32' or `short' for 32 bit pointers, `64' or `long' for 64 bit
!      pointers, and `no' for supporting only 32 bit pointers.  The later
!      option disables `pragma pointer_size'.
  
  
  File: gcc.info,  Node: VxWorks Options,  Next: x86 Options,  Prev: VMS Options,  Up: Submodel Options
--- 20981,21004 ----
  3.18.52 VMS Options
  -------------------
  
! These '-m' options are defined for the VMS implementations:
  
! '-mvms-return-codes'
!      Return VMS condition codes from 'main'.  The default is to return
       POSIX-style condition (e.g. error) codes.
  
! '-mdebug-main=PREFIX'
       Flag the first routine whose name starts with PREFIX as the main
       routine for the debugger.
  
! '-mmalloc64'
       Default to 64-bit memory allocation routines.
  
! '-mpointer-size=SIZE'
!      Set the default size of pointers.  Possible options for SIZE are
!      '32' or 'short' for 32 bit pointers, '64' or 'long' for 64 bit
!      pointers, and 'no' for supporting only 32 bit pointers.  The later
!      option disables 'pragma pointer_size'.
  
  
  File: gcc.info,  Node: VxWorks Options,  Next: x86 Options,  Prev: VMS Options,  Up: Submodel Options
*************** The options in this section are defined
*** 21121,21148 ****
  Options specific to the target hardware are listed with the other
  options for that target.
  
! `-mrtp'
       GCC can generate code for both VxWorks kernels and real time
       processes (RTPs).  This option switches from the former to the
!      latter.  It also defines the preprocessor macro `__RTP__'.
  
! `-non-static'
       Link an RTP executable against shared libraries rather than static
!      libraries.  The options `-static' and `-shared' can also be used
!      for RTPs (*note Link Options::); `-static' is the default.
  
! `-Bstatic'
! `-Bdynamic'
       These options are passed down to the linker.  They are defined for
       compatibility with Diab.
  
! `-Xbind-lazy'
       Enable lazy binding of function calls.  This option is equivalent
!      to `-Wl,-z,now' and is defined for compatibility with Diab.
  
! `-Xbind-now'
!      Disable lazy binding of function calls.  This option is the
!      default and is defined for compatibility with Diab.
  
  
  File: gcc.info,  Node: x86 Options,  Next: x86 Windows Options,  Prev: VxWorks Options,  Up: Submodel Options
--- 21010,21037 ----
  Options specific to the target hardware are listed with the other
  options for that target.
  
! '-mrtp'
       GCC can generate code for both VxWorks kernels and real time
       processes (RTPs).  This option switches from the former to the
!      latter.  It also defines the preprocessor macro '__RTP__'.
  
! '-non-static'
       Link an RTP executable against shared libraries rather than static
!      libraries.  The options '-static' and '-shared' can also be used
!      for RTPs (*note Link Options::); '-static' is the default.
  
! '-Bstatic'
! '-Bdynamic'
       These options are passed down to the linker.  They are defined for
       compatibility with Diab.
  
! '-Xbind-lazy'
       Enable lazy binding of function calls.  This option is equivalent
!      to '-Wl,-z,now' and is defined for compatibility with Diab.
  
! '-Xbind-now'
!      Disable lazy binding of function calls.  This option is the default
!      and is defined for compatibility with Diab.
  
  
  File: gcc.info,  Node: x86 Options,  Next: x86 Windows Options,  Prev: VxWorks Options,  Up: Submodel Options
*************** File: gcc.info,  Node: x86 Options,  Nex
*** 21150,21287 ****
  3.18.54 x86 Options
  -------------------
  
! These `-m' options are defined for the x86 family of computers.
  
! `-march=CPU-TYPE'
       Generate instructions for the machine type CPU-TYPE.  In contrast
!      to `-mtune=CPU-TYPE', which merely tunes the generated code for
!      the specified CPU-TYPE, `-march=CPU-TYPE' allows GCC to generate
!      code that may not run at all on processors other than the one
!      indicated.  Specifying `-march=CPU-TYPE' implies `-mtune=CPU-TYPE'.
  
       The choices for CPU-TYPE are:
  
!     `native'
            This selects the CPU to generate code for at compilation time
            by determining the processor type of the compiling machine.
!           Using `-march=native' enables all instruction subsets
!           supported by the local machine (hence the result might not
!           run on different machines).  Using `-mtune=native' produces
!           code optimized for the local machine under the constraints of
!           the selected instruction set.
  
!     `i386'
            Original Intel i386 CPU.
  
!     `i486'
            Intel i486 CPU.  (No scheduling is implemented for this chip.)
  
!     `i586'
!     `pentium'
            Intel Pentium CPU with no MMX support.
  
!     `lakemont'
            Intel Lakemont MCU, based on Intel Pentium CPU.
  
!     `pentium-mmx'
            Intel Pentium MMX CPU, based on Pentium core with MMX
            instruction set support.
  
!     `pentiumpro'
            Intel Pentium Pro CPU.
  
!     `i686'
!           When used with `-march', the Pentium Pro instruction set is
            used, so the code runs on all i686 family chips.  When used
!           with `-mtune', it has the same meaning as `generic'.
  
!     `pentium2'
            Intel Pentium II CPU, based on Pentium Pro core with MMX
            instruction set support.
  
!     `pentium3'
!     `pentium3m'
            Intel Pentium III CPU, based on Pentium Pro core with MMX and
            SSE instruction set support.
  
!     `pentium-m'
            Intel Pentium M; low-power version of Intel Pentium III CPU
            with MMX, SSE and SSE2 instruction set support.  Used by
            Centrino notebooks.
  
!     `pentium4'
!     `pentium4m'
            Intel Pentium 4 CPU with MMX, SSE and SSE2 instruction set
            support.
  
!     `prescott'
            Improved version of Intel Pentium 4 CPU with MMX, SSE, SSE2
            and SSE3 instruction set support.
  
!     `nocona'
            Improved version of Intel Pentium 4 CPU with 64-bit
            extensions, MMX, SSE, SSE2 and SSE3 instruction set support.
  
!     `core2'
            Intel Core 2 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3
            and SSSE3 instruction set support.
  
!     `nehalem'
            Intel Nehalem CPU with 64-bit extensions, MMX, SSE, SSE2,
            SSE3, SSSE3, SSE4.1, SSE4.2 and POPCNT instruction set
            support.
  
!     `westmere'
            Intel Westmere CPU with 64-bit extensions, MMX, SSE, SSE2,
            SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AES and PCLMUL
            instruction set support.
  
!     `sandybridge'
!           Intel Sandy Bridge CPU with 64-bit extensions, MMX, SSE,
!           SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AES and
!           PCLMUL instruction set support.
  
!     `ivybridge'
            Intel Ivy Bridge CPU with 64-bit extensions, MMX, SSE, SSE2,
            SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AES, PCLMUL,
            FSGSBASE, RDRND and F16C instruction set support.
  
!     `haswell'
            Intel Haswell CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES,
            PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2 and F16C instruction
            set support.
  
!     `broadwell'
            Intel Broadwell CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES,
            PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX
            and PREFETCHW instruction set support.
  
!     `skylake'
            Intel Skylake CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES,
            PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX,
            PREFETCHW, CLFLUSHOPT, XSAVEC and XSAVES instruction set
            support.
  
!     `bonnell'
            Intel Bonnell CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3 and SSSE3 instruction set support.
  
!     `silvermont'
            Intel Silvermont CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AES, PCLMUL and
            RDRND instruction set support.
  
!     `knl'
!           Intel Knight's Landing CPU with 64-bit extensions, MOVBE,
!           MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX,
!           AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C,
!           RDSEED, ADCX, PREFETCHW, AVX512F, AVX512PF, AVX512ER and
!           AVX512CD instruction set support.
  
!     `skylake-avx512'
            Intel Skylake Server CPU with 64-bit extensions, MOVBE, MMX,
            SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX,
            AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C,
--- 21039,21176 ----
  3.18.54 x86 Options
  -------------------
  
! These '-m' options are defined for the x86 family of computers.
  
! '-march=CPU-TYPE'
       Generate instructions for the machine type CPU-TYPE.  In contrast
!      to '-mtune=CPU-TYPE', which merely tunes the generated code for the
!      specified CPU-TYPE, '-march=CPU-TYPE' allows GCC to generate code
!      that may not run at all on processors other than the one indicated.
!      Specifying '-march=CPU-TYPE' implies '-mtune=CPU-TYPE'.
  
       The choices for CPU-TYPE are:
  
!      'native'
            This selects the CPU to generate code for at compilation time
            by determining the processor type of the compiling machine.
!           Using '-march=native' enables all instruction subsets
!           supported by the local machine (hence the result might not run
!           on different machines).  Using '-mtune=native' produces code
!           optimized for the local machine under the constraints of the
!           selected instruction set.
  
!      'i386'
            Original Intel i386 CPU.
  
!      'i486'
            Intel i486 CPU.  (No scheduling is implemented for this chip.)
  
!      'i586'
!      'pentium'
            Intel Pentium CPU with no MMX support.
  
!      'lakemont'
            Intel Lakemont MCU, based on Intel Pentium CPU.
  
!      'pentium-mmx'
            Intel Pentium MMX CPU, based on Pentium core with MMX
            instruction set support.
  
!      'pentiumpro'
            Intel Pentium Pro CPU.
  
!      'i686'
!           When used with '-march', the Pentium Pro instruction set is
            used, so the code runs on all i686 family chips.  When used
!           with '-mtune', it has the same meaning as 'generic'.
  
!      'pentium2'
            Intel Pentium II CPU, based on Pentium Pro core with MMX
            instruction set support.
  
!      'pentium3'
!      'pentium3m'
            Intel Pentium III CPU, based on Pentium Pro core with MMX and
            SSE instruction set support.
  
!      'pentium-m'
            Intel Pentium M; low-power version of Intel Pentium III CPU
            with MMX, SSE and SSE2 instruction set support.  Used by
            Centrino notebooks.
  
!      'pentium4'
!      'pentium4m'
            Intel Pentium 4 CPU with MMX, SSE and SSE2 instruction set
            support.
  
!      'prescott'
            Improved version of Intel Pentium 4 CPU with MMX, SSE, SSE2
            and SSE3 instruction set support.
  
!      'nocona'
            Improved version of Intel Pentium 4 CPU with 64-bit
            extensions, MMX, SSE, SSE2 and SSE3 instruction set support.
  
!      'core2'
            Intel Core 2 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3
            and SSSE3 instruction set support.
  
!      'nehalem'
            Intel Nehalem CPU with 64-bit extensions, MMX, SSE, SSE2,
            SSE3, SSSE3, SSE4.1, SSE4.2 and POPCNT instruction set
            support.
  
!      'westmere'
            Intel Westmere CPU with 64-bit extensions, MMX, SSE, SSE2,
            SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AES and PCLMUL
            instruction set support.
  
!      'sandybridge'
!           Intel Sandy Bridge CPU with 64-bit extensions, MMX, SSE, SSE2,
!           SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AES and PCLMUL
!           instruction set support.
  
!      'ivybridge'
            Intel Ivy Bridge CPU with 64-bit extensions, MMX, SSE, SSE2,
            SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AES, PCLMUL,
            FSGSBASE, RDRND and F16C instruction set support.
  
!      'haswell'
            Intel Haswell CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES,
            PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2 and F16C instruction
            set support.
  
!      'broadwell'
            Intel Broadwell CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES,
            PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX
            and PREFETCHW instruction set support.
  
!      'skylake'
            Intel Skylake CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES,
            PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C, RDSEED, ADCX,
            PREFETCHW, CLFLUSHOPT, XSAVEC and XSAVES instruction set
            support.
  
!      'bonnell'
            Intel Bonnell CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3 and SSSE3 instruction set support.
  
!      'silvermont'
            Intel Silvermont CPU with 64-bit extensions, MOVBE, MMX, SSE,
            SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AES, PCLMUL and
            RDRND instruction set support.
  
!      'knl'
!           Intel Knight's Landing CPU with 64-bit extensions, MOVBE, MMX,
!           SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2,
!           AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C, RDSEED,
!           ADCX, PREFETCHW, AVX512F, AVX512PF, AVX512ER and AVX512CD
!           instruction set support.
  
!      'skylake-avx512'
            Intel Skylake Server CPU with 64-bit extensions, MOVBE, MMX,
            SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, PKU, AVX,
            AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA, BMI, BMI2, F16C,
*************** These `-m' options are defined for the x
*** 21289,21421 ****
            AVX512VL, AVX512BW, AVX512DQ and AVX512CD instruction set
            support.
  
!     `k6'
            AMD K6 CPU with MMX instruction set support.
  
!     `k6-2'
!     `k6-3'
            Improved versions of AMD K6 CPU with MMX and 3DNow!
            instruction set support.
  
!     `athlon'
!     `athlon-tbird'
            AMD Athlon CPU with MMX, 3dNOW!, enhanced 3DNow! and SSE
            prefetch instructions support.
  
!     `athlon-4'
!     `athlon-xp'
!     `athlon-mp'
            Improved AMD Athlon CPU with MMX, 3DNow!, enhanced 3DNow! and
            full SSE instruction set support.
  
!     `k8'
!     `opteron'
!     `athlon64'
!     `athlon-fx'
            Processors based on the AMD K8 core with x86-64 instruction
            set support, including the AMD Opteron, Athlon 64, and Athlon
            64 FX processors.  (This supersets MMX, SSE, SSE2, 3DNow!,
            enhanced 3DNow! and 64-bit instruction set extensions.)
  
!     `k8-sse3'
!     `opteron-sse3'
!     `athlon64-sse3'
            Improved versions of AMD K8 cores with SSE3 instruction set
            support.
  
!     `amdfam10'
!     `barcelona'
!           CPUs based on AMD Family 10h cores with x86-64 instruction
!           set support.  (This supersets MMX, SSE, SSE2, SSE3, SSE4A,
!           3DNow!, enhanced 3DNow!, ABM and 64-bit instruction set
!           extensions.)
! 
!     `bdver1'
!           CPUs based on AMD Family 15h cores with x86-64 instruction
!           set support.  (This supersets FMA4, AVX, XOP, LWP, AES,
!           PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1,
!           SSE4.2, ABM and 64-bit instruction set extensions.)
  
!     `bdver2'
            AMD Family 15h core based CPUs with x86-64 instruction set
!           support.  (This supersets BMI, TBM, F16C, FMA, FMA4, AVX,
!           XOP, LWP, AES, PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A,
!           SSSE3, SSE4.1, SSE4.2, ABM and 64-bit instruction set
!           extensions.)
! 
!     `bdver3'
            AMD Family 15h core based CPUs with x86-64 instruction set
!           support.  (This supersets BMI, TBM, F16C, FMA, FMA4,
!           FSGSBASE, AVX, XOP, LWP, AES, PCL_MUL, CX16, MMX, SSE, SSE2,
!           SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM and 64-bit
!           instruction set extensions.
! 
!     `bdver4'
            AMD Family 15h core based CPUs with x86-64 instruction set
            support.  (This supersets BMI, BMI2, TBM, F16C, FMA, FMA4,
!           FSGSBASE, AVX, AVX2, XOP, LWP, AES, PCL_MUL, CX16, MOVBE,
!           MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM and
!           64-bit instruction set extensions.
  
!     `znver1'
            AMD Family 17h core based CPUs with x86-64 instruction set
!           support.  (This supersets BMI, BMI2, F16C, FMA, FSGSBASE,
!           AVX, AVX2, ADCX, RDSEED, MWAITX, SHA, CLZERO, AES, PCL_MUL,
!           CX16, MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1,
!           SSE4.2, ABM, XSAVEC, XSAVES, CLFLUSHOPT, POPCNT, and 64-bit
            instruction set extensions.
  
!     `btver1'
!           CPUs based on AMD Family 14h cores with x86-64 instruction
!           set support.  (This supersets MMX, SSE, SSE2, SSE3, SSSE3,
!           SSE4A, CX16, ABM and 64-bit instruction set extensions.)
  
!     `btver2'
!           CPUs based on AMD Family 16h cores with x86-64 instruction
!           set support. This includes MOVBE, F16C, BMI, AVX, PCL_MUL,
!           AES, SSE4.2, SSE4.1, CX16, ABM, SSE4A, SSSE3, SSE3, SSE2,
!           SSE, MMX and 64-bit instruction set extensions.
  
!     `winchip-c6'
            IDT WinChip C6 CPU, dealt in same way as i486 with additional
            MMX instruction set support.
  
!     `winchip2'
            IDT WinChip 2 CPU, dealt in same way as i486 with additional
!           MMX and 3DNow!  instruction set support.
  
!     `c3'
            VIA C3 CPU with MMX and 3DNow! instruction set support.  (No
            scheduling is implemented for this chip.)
  
!     `c3-2'
            VIA C3-2 (Nehemiah/C5XL) CPU with MMX and SSE instruction set
            support.  (No scheduling is implemented for this chip.)
  
!     `geode'
            AMD Geode embedded processor with MMX and 3DNow! instruction
            set support.
  
! `-mtune=CPU-TYPE'
       Tune to CPU-TYPE everything applicable about the generated code,
       except for the ABI and the set of available instructions.  While
!      picking a specific CPU-TYPE schedules things appropriately for
!      that particular chip, the compiler does not generate any code that
       cannot run on the default machine type unless you use a
!      `-march=CPU-TYPE' option.  For example, if GCC is configured for
!      i686-pc-linux-gnu then `-mtune=pentium4' generates code that is
       tuned for Pentium 4 but still runs on i686 machines.
  
!      The choices for CPU-TYPE are the same as for `-march'.  In
!      addition, `-mtune' supports 2 extra choices for CPU-TYPE:
  
!     `generic'
            Produce code optimized for the most common IA32/AMD64/EM64T
            processors.  If you know the CPU on which your code will run,
!           then you should use the corresponding `-mtune' or `-march'
!           option instead of `-mtune=generic'.  But, if you do not know
!           exactly what CPU users of your application will have, then
!           you should use this option.
  
            As new processors are deployed in the marketplace, the
            behavior of this option will change.  Therefore, if you
--- 21178,21305 ----
            AVX512VL, AVX512BW, AVX512DQ and AVX512CD instruction set
            support.
  
!      'k6'
            AMD K6 CPU with MMX instruction set support.
  
!      'k6-2'
!      'k6-3'
            Improved versions of AMD K6 CPU with MMX and 3DNow!
            instruction set support.
  
!      'athlon'
!      'athlon-tbird'
            AMD Athlon CPU with MMX, 3dNOW!, enhanced 3DNow! and SSE
            prefetch instructions support.
  
!      'athlon-4'
!      'athlon-xp'
!      'athlon-mp'
            Improved AMD Athlon CPU with MMX, 3DNow!, enhanced 3DNow! and
            full SSE instruction set support.
  
!      'k8'
!      'opteron'
!      'athlon64'
!      'athlon-fx'
            Processors based on the AMD K8 core with x86-64 instruction
            set support, including the AMD Opteron, Athlon 64, and Athlon
            64 FX processors.  (This supersets MMX, SSE, SSE2, 3DNow!,
            enhanced 3DNow! and 64-bit instruction set extensions.)
  
!      'k8-sse3'
!      'opteron-sse3'
!      'athlon64-sse3'
            Improved versions of AMD K8 cores with SSE3 instruction set
            support.
  
!      'amdfam10'
!      'barcelona'
!           CPUs based on AMD Family 10h cores with x86-64 instruction set
!           support.  (This supersets MMX, SSE, SSE2, SSE3, SSE4A, 3DNow!,
!           enhanced 3DNow!, ABM and 64-bit instruction set extensions.)
  
!      'bdver1'
!           CPUs based on AMD Family 15h cores with x86-64 instruction set
!           support.  (This supersets FMA4, AVX, XOP, LWP, AES, PCL_MUL,
!           CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM
!           and 64-bit instruction set extensions.)
!      'bdver2'
            AMD Family 15h core based CPUs with x86-64 instruction set
!           support.  (This supersets BMI, TBM, F16C, FMA, FMA4, AVX, XOP,
!           LWP, AES, PCL_MUL, CX16, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3,
!           SSE4.1, SSE4.2, ABM and 64-bit instruction set extensions.)
!      'bdver3'
            AMD Family 15h core based CPUs with x86-64 instruction set
!           support.  (This supersets BMI, TBM, F16C, FMA, FMA4, FSGSBASE,
!           AVX, XOP, LWP, AES, PCL_MUL, CX16, MMX, SSE, SSE2, SSE3,
!           SSE4A, SSSE3, SSE4.1, SSE4.2, ABM and 64-bit instruction set
!           extensions.
!      'bdver4'
            AMD Family 15h core based CPUs with x86-64 instruction set
            support.  (This supersets BMI, BMI2, TBM, F16C, FMA, FMA4,
!           FSGSBASE, AVX, AVX2, XOP, LWP, AES, PCL_MUL, CX16, MOVBE, MMX,
!           SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2, ABM and 64-bit
!           instruction set extensions.
  
!      'znver1'
            AMD Family 17h core based CPUs with x86-64 instruction set
!           support.  (This supersets BMI, BMI2, F16C, FMA, FSGSBASE, AVX,
!           AVX2, ADCX, RDSEED, MWAITX, SHA, CLZERO, AES, PCL_MUL, CX16,
!           MOVBE, MMX, SSE, SSE2, SSE3, SSE4A, SSSE3, SSE4.1, SSE4.2,
!           ABM, XSAVEC, XSAVES, CLFLUSHOPT, POPCNT, and 64-bit
            instruction set extensions.
  
!      'btver1'
!           CPUs based on AMD Family 14h cores with x86-64 instruction set
!           support.  (This supersets MMX, SSE, SSE2, SSE3, SSSE3, SSE4A,
!           CX16, ABM and 64-bit instruction set extensions.)
  
!      'btver2'
!           CPUs based on AMD Family 16h cores with x86-64 instruction set
!           support.  This includes MOVBE, F16C, BMI, AVX, PCL_MUL, AES,
!           SSE4.2, SSE4.1, CX16, ABM, SSE4A, SSSE3, SSE3, SSE2, SSE, MMX
!           and 64-bit instruction set extensions.
  
!      'winchip-c6'
            IDT WinChip C6 CPU, dealt in same way as i486 with additional
            MMX instruction set support.
  
!      'winchip2'
            IDT WinChip 2 CPU, dealt in same way as i486 with additional
!           MMX and 3DNow! instruction set support.
  
!      'c3'
            VIA C3 CPU with MMX and 3DNow! instruction set support.  (No
            scheduling is implemented for this chip.)
  
!      'c3-2'
            VIA C3-2 (Nehemiah/C5XL) CPU with MMX and SSE instruction set
            support.  (No scheduling is implemented for this chip.)
  
!      'geode'
            AMD Geode embedded processor with MMX and 3DNow! instruction
            set support.
  
! '-mtune=CPU-TYPE'
       Tune to CPU-TYPE everything applicable about the generated code,
       except for the ABI and the set of available instructions.  While
!      picking a specific CPU-TYPE schedules things appropriately for that
!      particular chip, the compiler does not generate any code that
       cannot run on the default machine type unless you use a
!      '-march=CPU-TYPE' option.  For example, if GCC is configured for
!      i686-pc-linux-gnu then '-mtune=pentium4' generates code that is
       tuned for Pentium 4 but still runs on i686 machines.
  
!      The choices for CPU-TYPE are the same as for '-march'.  In
!      addition, '-mtune' supports 2 extra choices for CPU-TYPE:
  
!      'generic'
            Produce code optimized for the most common IA32/AMD64/EM64T
            processors.  If you know the CPU on which your code will run,
!           then you should use the corresponding '-mtune' or '-march'
!           option instead of '-mtune=generic'.  But, if you do not know
!           exactly what CPU users of your application will have, then you
!           should use this option.
  
            As new processors are deployed in the marketplace, the
            behavior of this option will change.  Therefore, if you
*************** These `-m' options are defined for the x
*** 21423,21441 ****
            by this option will change to reflect the processors that are
            most common at the time that version of GCC is released.
  
!           There is no `-march=generic' option because `-march'
!           indicates the instruction set the compiler can use, and there
!           is no generic instruction set applicable to all processors.
!           In contrast, `-mtune' indicates the processor (or, in this
!           case, collection of processors) for which the code is
!           optimized.
  
!     `intel'
            Produce code optimized for the most current Intel processors,
!           which are Haswell and Silvermont for this version of GCC.  If
            you know the CPU on which your code will run, then you should
!           use the corresponding `-mtune' or `-march' option instead of
!           `-mtune=intel'.  But, if you want your application performs
            better on both Haswell and Silvermont, then you should use
            this option.
  
--- 21307,21324 ----
            by this option will change to reflect the processors that are
            most common at the time that version of GCC is released.
  
!           There is no '-march=generic' option because '-march' indicates
!           the instruction set the compiler can use, and there is no
!           generic instruction set applicable to all processors.  In
!           contrast, '-mtune' indicates the processor (or, in this case,
!           collection of processors) for which the code is optimized.
  
!      'intel'
            Produce code optimized for the most current Intel processors,
!           which are Haswell and Silvermont for this version of GCC. If
            you know the CPU on which your code will run, then you should
!           use the corresponding '-mtune' or '-march' option instead of
!           '-mtune=intel'.  But, if you want your application performs
            better on both Haswell and Silvermont, then you should use
            this option.
  
*************** These `-m' options are defined for the x
*** 21445,21500 ****
            by this option will change to reflect the most current Intel
            processors at the time that version of GCC is released.
  
!           There is no `-march=intel' option because `-march' indicates
            the instruction set the compiler can use, and there is no
            common instruction set applicable to all processors.  In
!           contrast, `-mtune' indicates the processor (or, in this case,
            collection of processors) for which the code is optimized.
  
! `-mcpu=CPU-TYPE'
!      A deprecated synonym for `-mtune'.
  
! `-mfpmath=UNIT'
       Generate floating-point arithmetic for selected unit UNIT.  The
       choices for UNIT are:
  
!     `387'
!           Use the standard 387 floating-point coprocessor present on
!           the majority of chips and emulated otherwise.  Code compiled
!           with this option runs almost everywhere.  The temporary
!           results are computed in 80-bit precision instead of the
!           precision specified by the type, resulting in slightly
!           different results compared to most of other chips.  See
!           `-ffloat-store' for more detailed description.
  
            This is the default choice for x86-32 targets.
  
!     `sse'
            Use scalar floating-point instructions present in the SSE
!           instruction set.  This instruction set is supported by
!           Pentium III and newer chips, and in the AMD line by Athlon-4,
!           Athlon XP and Athlon MP chips.  The earlier version of the SSE
            instruction set supports only single-precision arithmetic,
            thus the double and extended-precision arithmetic are still
            done using 387.  A later version, present only in Pentium 4
            and AMD x86-64 chips, supports double-precision arithmetic
            too.
  
!           For the x86-32 compiler, you must use `-march=CPU-TYPE',
!           `-msse' or `-msse2' switches to enable SSE extensions and
!           make this option effective.  For the x86-64 compiler, these
            extensions are enabled by default.
  
            The resulting code should be considerably faster in the
!           majority of cases and avoid the numerical instability
!           problems of 387 code, but may break some existing code that
!           expects temporaries to be 80 bits.
  
            This is the default choice for the x86-64 compiler.
  
!     `sse,387'
!     `sse+387'
!     `both'
            Attempt to utilize both instruction sets at once.  This
            effectively doubles the amount of available registers, and on
            chips with separate execution units for 387 and SSE the
--- 21328,21383 ----
            by this option will change to reflect the most current Intel
            processors at the time that version of GCC is released.
  
!           There is no '-march=intel' option because '-march' indicates
            the instruction set the compiler can use, and there is no
            common instruction set applicable to all processors.  In
!           contrast, '-mtune' indicates the processor (or, in this case,
            collection of processors) for which the code is optimized.
  
! '-mcpu=CPU-TYPE'
!      A deprecated synonym for '-mtune'.
  
! '-mfpmath=UNIT'
       Generate floating-point arithmetic for selected unit UNIT.  The
       choices for UNIT are:
  
!      '387'
!           Use the standard 387 floating-point coprocessor present on the
!           majority of chips and emulated otherwise.  Code compiled with
!           this option runs almost everywhere.  The temporary results are
!           computed in 80-bit precision instead of the precision
!           specified by the type, resulting in slightly different results
!           compared to most of other chips.  See '-ffloat-store' for more
!           detailed description.
  
            This is the default choice for x86-32 targets.
  
!      'sse'
            Use scalar floating-point instructions present in the SSE
!           instruction set.  This instruction set is supported by Pentium
!           III and newer chips, and in the AMD line by Athlon-4, Athlon
!           XP and Athlon MP chips.  The earlier version of the SSE
            instruction set supports only single-precision arithmetic,
            thus the double and extended-precision arithmetic are still
            done using 387.  A later version, present only in Pentium 4
            and AMD x86-64 chips, supports double-precision arithmetic
            too.
  
!           For the x86-32 compiler, you must use '-march=CPU-TYPE',
!           '-msse' or '-msse2' switches to enable SSE extensions and make
!           this option effective.  For the x86-64 compiler, these
            extensions are enabled by default.
  
            The resulting code should be considerably faster in the
!           majority of cases and avoid the numerical instability problems
!           of 387 code, but may break some existing code that expects
!           temporaries to be 80 bits.
  
            This is the default choice for the x86-64 compiler.
  
!      'sse,387'
!      'sse+387'
!      'both'
            Attempt to utilize both instruction sets at once.  This
            effectively doubles the amount of available registers, and on
            chips with separate execution units for 387 and SSE the
*************** These `-m' options are defined for the x
*** 21503,21686 ****
            not model separate functional units well, resulting in
            unstable performance.
  
! `-masm=DIALECT'
       Output assembly instructions using selected DIALECT.  Also affects
!      which dialect is used for basic `asm' (*note Basic Asm::) and
!      extended `asm' (*note Extended Asm::). Supported choices (in
!      dialect order) are `att' or `intel'. The default is `att'. Darwin
!      does not support `intel'.
  
! `-mieee-fp'
! `-mno-ieee-fp'
       Control whether or not the compiler uses IEEE floating-point
       comparisons.  These correctly handle the case where the result of a
       comparison is unordered.
  
! `-msoft-float'
       Generate output containing library calls for floating point.
  
       *Warning:* the requisite libraries are not part of GCC.  Normally
!      the facilities of the machine's usual C compiler are used, but
!      this can't be done directly in cross-compilation.  You must make
!      your own arrangements to provide suitable library functions for
       cross-compilation.
  
       On machines where a function returns floating-point results in the
       80387 register stack, some floating-point opcodes may be emitted
!      even if `-msoft-float' is used.
  
! `-mno-fp-ret-in-387'
       Do not use the FPU registers for return values of functions.
  
       The usual calling convention has functions return values of types
!      `float' and `double' in an FPU register, even if there is no FPU.
       The idea is that the operating system should emulate an FPU.
  
!      The option `-mno-fp-ret-in-387' causes such values to be returned
       in ordinary CPU registers instead.
  
! `-mno-fancy-math-387'
!      Some 387 emulators do not support the `sin', `cos' and `sqrt'
       instructions for the 387.  Specify this option to avoid generating
       those instructions.  This option is the default on OpenBSD and
!      NetBSD.  This option is overridden when `-march' indicates that
!      the target CPU always has an FPU and so the instruction does not
!      need emulation.  These instructions are not generated unless you
!      also use the `-funsafe-math-optimizations' switch.
  
! `-malign-double'
! `-mno-align-double'
!      Control whether GCC aligns `double', `long double', and `long
!      long' variables on a two-word boundary or a one-word boundary.
!      Aligning `double' variables on a two-word boundary produces code
!      that runs somewhat faster on a Pentium at the expense of more
!      memory.
  
!      On x86-64, `-malign-double' is enabled by default.
  
!      *Warning:* if you use the `-malign-double' switch, structures
       containing the above types are aligned differently than the
       published application binary interface specifications for the
       x86-32 and are not binary compatible with structures in code
       compiled without that switch.
  
! `-m96bit-long-double'
! `-m128bit-long-double'
!      These switches control the size of `long double' type.  The x86-32
       application binary interface specifies the size to be 96 bits, so
!      `-m96bit-long-double' is the default in 32-bit mode.
  
!      Modern architectures (Pentium and newer) prefer `long double' to
!      be aligned to an 8- or 16-byte boundary.  In arrays or structures
       conforming to the ABI, this is not possible.  So specifying
!      `-m128bit-long-double' aligns `long double' to a 16-byte boundary
!      by padding the `long double' with an additional 32-bit zero.
  
!      In the x86-64 compiler, `-m128bit-long-double' is the default
!      choice as its ABI specifies that `long double' is aligned on
       16-byte boundary.
  
       Notice that neither of these options enable any extra precision
!      over the x87 standard of 80 bits for a `long double'.
  
       *Warning:* if you override the default value for your target ABI,
!      this changes the size of structures and arrays containing `long
       double' variables, as well as modifying the function calling
!      convention for functions taking `long double'.  Hence they are not
       binary-compatible with code compiled without that switch.
  
! `-mlong-double-64'
! `-mlong-double-80'
! `-mlong-double-128'
!      These switches control the size of `long double' type. A size of
!      64 bits makes the `long double' type equivalent to the `double'
!      type. This is the default for 32-bit Bionic C library.  A size of
!      128 bits makes the `long double' type equivalent to the
!      `__float128' type. This is the default for 64-bit Bionic C library.
  
       *Warning:* if you override the default value for your target ABI,
!      this changes the size of structures and arrays containing `long
       double' variables, as well as modifying the function calling
!      convention for functions taking `long double'.  Hence they are not
       binary-compatible with code compiled without that switch.
  
! `-malign-data=TYPE'
       Control how GCC aligns variables.  Supported values for TYPE are
!      `compat' uses increased alignment value compatible uses GCC 4.8
!      and earlier, `abi' uses alignment value as specified by the psABI,
!      and `cacheline' uses increased alignment value to match the cache
!      line size.  `compat' is the default.
  
! `-mlarge-data-threshold=THRESHOLD'
!      When `-mcmodel=medium' is specified, data objects larger than
!      THRESHOLD are placed in the large data section.  This value must
!      be the same across all objects linked into the binary, and
!      defaults to 65535.
  
! `-mrtd'
       Use a different function-calling convention, in which functions
!      that take a fixed number of arguments return with the `ret NUM'
       instruction, which pops their arguments while returning.  This
       saves one instruction in the caller since there is no need to pop
       the arguments there.
  
       You can specify that an individual function is called with this
!      calling sequence with the function attribute `stdcall'.  You can
!      also override the `-mrtd' option by using the function attribute
!      `cdecl'.  *Note Function Attributes::.
  
       *Warning:* this calling convention is incompatible with the one
       normally used on Unix, so you cannot use it if you need to call
       libraries compiled with the Unix compiler.
  
       Also, you must provide function prototypes for all functions that
!      take variable numbers of arguments (including `printf'); otherwise
       incorrect code is generated for calls to those functions.
  
       In addition, seriously incorrect code results if you call a
       function with too many arguments.  (Normally, extra arguments are
       harmlessly ignored.)
  
! `-mregparm=NUM'
       Control how many registers are used to pass integer arguments.  By
       default, no registers are used to pass arguments, and at most 3
       registers can be used.  You can control this behavior for a
!      specific function by using the function attribute `regparm'.
!      *Note Function Attributes::.
  
       *Warning:* if you use this switch, and NUM is nonzero, then you
       must build all modules with the same value, including any
       libraries.  This includes the system libraries and startup modules.
  
! `-msseregparm'
       Use SSE register passing conventions for float and double arguments
       and return values.  You can control this behavior for a specific
!      function by using the function attribute `sseregparm'.  *Note
       Function Attributes::.
  
       *Warning:* if you use this switch then you must build all modules
       with the same value, including any libraries.  This includes the
       system libraries and startup modules.
  
! `-mvect8-ret-in-mem'
       Return 8-byte vectors in memory instead of MMX registers.  This is
       the default on Solaris 8 and 9 and VxWorks to match the ABI of the
       Sun Studio compilers until version 12.  Later compiler versions
!      (starting with Studio 12 Update 1) follow the ABI used by other
!      x86 targets, which is the default on Solaris 10 and later.  _Only_
!      use this option if you need to remain compatible with existing
!      code produced by those previous compiler versions or older
!      versions of GCC.
  
- `-mpc32'
- `-mpc64'
- `-mpc80'
       Set 80387 floating-point precision to 32, 64 or 80 bits.  When
!      `-mpc32' is specified, the significands of results of
       floating-point operations are rounded to 24 bits (single
!      precision); `-mpc64' rounds the significands of results of
       floating-point operations to 53 bits (double precision) and
!      `-mpc80' rounds the significands of results of floating-point
       operations to 64 bits (extended double precision), which is the
       default.  When this option is used, floating-point operations in
       higher precisions are not available to the programmer without
--- 21386,21570 ----
            not model separate functional units well, resulting in
            unstable performance.
  
! '-masm=DIALECT'
       Output assembly instructions using selected DIALECT.  Also affects
!      which dialect is used for basic 'asm' (*note Basic Asm::) and
!      extended 'asm' (*note Extended Asm::).  Supported choices (in
!      dialect order) are 'att' or 'intel'.  The default is 'att'.  Darwin
!      does not support 'intel'.
  
! '-mieee-fp'
! '-mno-ieee-fp'
       Control whether or not the compiler uses IEEE floating-point
       comparisons.  These correctly handle the case where the result of a
       comparison is unordered.
  
! '-msoft-float'
       Generate output containing library calls for floating point.
  
       *Warning:* the requisite libraries are not part of GCC.  Normally
!      the facilities of the machine's usual C compiler are used, but this
!      can't be done directly in cross-compilation.  You must make your
!      own arrangements to provide suitable library functions for
       cross-compilation.
  
       On machines where a function returns floating-point results in the
       80387 register stack, some floating-point opcodes may be emitted
!      even if '-msoft-float' is used.
  
! '-mno-fp-ret-in-387'
       Do not use the FPU registers for return values of functions.
  
       The usual calling convention has functions return values of types
!      'float' and 'double' in an FPU register, even if there is no FPU.
       The idea is that the operating system should emulate an FPU.
  
!      The option '-mno-fp-ret-in-387' causes such values to be returned
       in ordinary CPU registers instead.
  
! '-mno-fancy-math-387'
!      Some 387 emulators do not support the 'sin', 'cos' and 'sqrt'
       instructions for the 387.  Specify this option to avoid generating
       those instructions.  This option is the default on OpenBSD and
!      NetBSD.  This option is overridden when '-march' indicates that the
!      target CPU always has an FPU and so the instruction does not need
!      emulation.  These instructions are not generated unless you also
!      use the '-funsafe-math-optimizations' switch.
  
! '-malign-double'
! '-mno-align-double'
!      Control whether GCC aligns 'double', 'long double', and 'long long'
!      variables on a two-word boundary or a one-word boundary.  Aligning
!      'double' variables on a two-word boundary produces code that runs
!      somewhat faster on a Pentium at the expense of more memory.
  
!      On x86-64, '-malign-double' is enabled by default.
  
!      *Warning:* if you use the '-malign-double' switch, structures
       containing the above types are aligned differently than the
       published application binary interface specifications for the
       x86-32 and are not binary compatible with structures in code
       compiled without that switch.
  
! '-m96bit-long-double'
! '-m128bit-long-double'
!      These switches control the size of 'long double' type.  The x86-32
       application binary interface specifies the size to be 96 bits, so
!      '-m96bit-long-double' is the default in 32-bit mode.
  
!      Modern architectures (Pentium and newer) prefer 'long double' to be
!      aligned to an 8- or 16-byte boundary.  In arrays or structures
       conforming to the ABI, this is not possible.  So specifying
!      '-m128bit-long-double' aligns 'long double' to a 16-byte boundary
!      by padding the 'long double' with an additional 32-bit zero.
  
!      In the x86-64 compiler, '-m128bit-long-double' is the default
!      choice as its ABI specifies that 'long double' is aligned on
       16-byte boundary.
  
       Notice that neither of these options enable any extra precision
!      over the x87 standard of 80 bits for a 'long double'.
  
       *Warning:* if you override the default value for your target ABI,
!      this changes the size of structures and arrays containing 'long
       double' variables, as well as modifying the function calling
!      convention for functions taking 'long double'.  Hence they are not
       binary-compatible with code compiled without that switch.
  
! '-mlong-double-64'
! '-mlong-double-80'
! '-mlong-double-128'
!      These switches control the size of 'long double' type.  A size of
!      64 bits makes the 'long double' type equivalent to the 'double'
!      type.  This is the default for 32-bit Bionic C library.  A size of
!      128 bits makes the 'long double' type equivalent to the
!      '__float128' type.  This is the default for 64-bit Bionic C
!      library.
  
       *Warning:* if you override the default value for your target ABI,
!      this changes the size of structures and arrays containing 'long
       double' variables, as well as modifying the function calling
!      convention for functions taking 'long double'.  Hence they are not
       binary-compatible with code compiled without that switch.
  
! '-malign-data=TYPE'
       Control how GCC aligns variables.  Supported values for TYPE are
!      'compat' uses increased alignment value compatible uses GCC 4.8 and
!      earlier, 'abi' uses alignment value as specified by the psABI, and
!      'cacheline' uses increased alignment value to match the cache line
!      size.  'compat' is the default.
  
! '-mlarge-data-threshold=THRESHOLD'
!      When '-mcmodel=medium' is specified, data objects larger than
!      THRESHOLD are placed in the large data section.  This value must be
!      the same across all objects linked into the binary, and defaults to
!      65535.
  
! '-mrtd'
       Use a different function-calling convention, in which functions
!      that take a fixed number of arguments return with the 'ret NUM'
       instruction, which pops their arguments while returning.  This
       saves one instruction in the caller since there is no need to pop
       the arguments there.
  
       You can specify that an individual function is called with this
!      calling sequence with the function attribute 'stdcall'.  You can
!      also override the '-mrtd' option by using the function attribute
!      'cdecl'.  *Note Function Attributes::.
  
       *Warning:* this calling convention is incompatible with the one
       normally used on Unix, so you cannot use it if you need to call
       libraries compiled with the Unix compiler.
  
       Also, you must provide function prototypes for all functions that
!      take variable numbers of arguments (including 'printf'); otherwise
       incorrect code is generated for calls to those functions.
  
       In addition, seriously incorrect code results if you call a
       function with too many arguments.  (Normally, extra arguments are
       harmlessly ignored.)
  
! '-mregparm=NUM'
       Control how many registers are used to pass integer arguments.  By
       default, no registers are used to pass arguments, and at most 3
       registers can be used.  You can control this behavior for a
!      specific function by using the function attribute 'regparm'.  *Note
!      Function Attributes::.
  
       *Warning:* if you use this switch, and NUM is nonzero, then you
       must build all modules with the same value, including any
       libraries.  This includes the system libraries and startup modules.
  
! '-msseregparm'
       Use SSE register passing conventions for float and double arguments
       and return values.  You can control this behavior for a specific
!      function by using the function attribute 'sseregparm'.  *Note
       Function Attributes::.
  
       *Warning:* if you use this switch then you must build all modules
       with the same value, including any libraries.  This includes the
       system libraries and startup modules.
  
! '-mvect8-ret-in-mem'
       Return 8-byte vectors in memory instead of MMX registers.  This is
       the default on Solaris 8 and 9 and VxWorks to match the ABI of the
       Sun Studio compilers until version 12.  Later compiler versions
!      (starting with Studio 12 Update 1) follow the ABI used by other x86
!      targets, which is the default on Solaris 10 and later.  _Only_ use
!      this option if you need to remain compatible with existing code
!      produced by those previous compiler versions or older versions of
!      GCC.
! 
! '-mpc32'
! '-mpc64'
! '-mpc80'
  
       Set 80387 floating-point precision to 32, 64 or 80 bits.  When
!      '-mpc32' is specified, the significands of results of
       floating-point operations are rounded to 24 bits (single
!      precision); '-mpc64' rounds the significands of results of
       floating-point operations to 53 bits (double precision) and
!      '-mpc80' rounds the significands of results of floating-point
       operations to 64 bits (extended double precision), which is the
       default.  When this option is used, floating-point operations in
       higher precisions are not available to the programmer without
*************** These `-m' options are defined for the x
*** 21688,21717 ****
  
       Setting the rounding of floating-point operations to less than the
       default 80 bits can speed some programs by 2% or more.  Note that
!      some mathematical libraries assume that extended-precision
!      (80-bit) floating-point operations are enabled by default;
!      routines in such libraries could suffer significant loss of
!      accuracy, typically through so-called "catastrophic cancellation",
!      when this option is used to set the precision to less than
!      extended precision.
  
! `-mstackrealign'
!      Realign the stack at entry.  On the x86, the `-mstackrealign'
       option generates an alternate prologue and epilogue that realigns
!      the run-time stack if necessary.  This supports mixing legacy
!      codes that keep 4-byte stack alignment with modern codes that keep
       16-byte stack alignment for SSE compatibility.  See also the
!      attribute `force_align_arg_pointer', applicable to individual
       functions.
  
! `-mpreferred-stack-boundary=NUM'
       Attempt to keep the stack boundary aligned to a 2 raised to NUM
!      byte boundary.  If `-mpreferred-stack-boundary' is not specified,
       the default is 4 (16 bytes or 128 bits).
  
       *Warning:* When generating code for the x86-64 architecture with
!      SSE extensions disabled, `-mpreferred-stack-boundary=3' can be
!      used to keep the stack boundary aligned to 8 byte boundary.  Since
       x86-64 ABI require 16 byte stack alignment, this is ABI
       incompatible and intended to be used in controlled environment
       where stack space is important limitation.  This option leads to
--- 21572,21600 ----
  
       Setting the rounding of floating-point operations to less than the
       default 80 bits can speed some programs by 2% or more.  Note that
!      some mathematical libraries assume that extended-precision (80-bit)
!      floating-point operations are enabled by default; routines in such
!      libraries could suffer significant loss of accuracy, typically
!      through so-called "catastrophic cancellation", when this option is
!      used to set the precision to less than extended precision.
  
! '-mstackrealign'
!      Realign the stack at entry.  On the x86, the '-mstackrealign'
       option generates an alternate prologue and epilogue that realigns
!      the run-time stack if necessary.  This supports mixing legacy codes
!      that keep 4-byte stack alignment with modern codes that keep
       16-byte stack alignment for SSE compatibility.  See also the
!      attribute 'force_align_arg_pointer', applicable to individual
       functions.
  
! '-mpreferred-stack-boundary=NUM'
       Attempt to keep the stack boundary aligned to a 2 raised to NUM
!      byte boundary.  If '-mpreferred-stack-boundary' is not specified,
       the default is 4 (16 bytes or 128 bits).
  
       *Warning:* When generating code for the x86-64 architecture with
!      SSE extensions disabled, '-mpreferred-stack-boundary=3' can be used
!      to keep the stack boundary aligned to 8 byte boundary.  Since
       x86-64 ABI require 16 byte stack alignment, this is ABI
       incompatible and intended to be used in controlled environment
       where stack space is important limitation.  This option leads to
*************** These `-m' options are defined for the x
*** 21721,21851 ****
       misaligned memory access traps.  In addition, variable arguments
       are handled incorrectly for 16 byte aligned objects (including x87
       long double and __int128), leading to wrong results.  You must
!      build all modules with `-mpreferred-stack-boundary=3', including
       any libraries.  This includes the system libraries and startup
       modules.
  
! `-mincoming-stack-boundary=NUM'
       Assume the incoming stack is aligned to a 2 raised to NUM byte
!      boundary.  If `-mincoming-stack-boundary' is not specified, the
!      one specified by `-mpreferred-stack-boundary' is used.
  
!      On Pentium and Pentium Pro, `double' and `long double' values
!      should be aligned to an 8-byte boundary (see `-malign-double') or
!      suffer significant run time performance penalties.  On Pentium
!      III, the Streaming SIMD Extension (SSE) data type `__m128' may not
!      work properly if it is not 16-byte aligned.
  
       To ensure proper alignment of this values on the stack, the stack
!      boundary must be as aligned as that required by any value stored
!      on the stack.  Further, every function must be generated such that
!      it keeps the stack aligned.  Thus calling a function compiled with
!      a higher preferred stack boundary from a function compiled with a
!      lower preferred stack boundary most likely misaligns the stack.
!      It is recommended that libraries that use callbacks always use the
       default setting.
  
       This extra alignment does consume extra stack space, and generally
       increases code size.  Code that is sensitive to stack space usage,
       such as embedded systems and operating system kernels, may want to
!      reduce the preferred alignment to `-mpreferred-stack-boundary=2'.
  
! `-mmmx'
! `-msse'
! `-msse2'
! `-msse3'
! `-mssse3'
! `-msse4'
! `-msse4a'
! `-msse4.1'
! `-msse4.2'
! `-mavx'
! `-mavx2'
! `-mavx512f'
! `-mavx512pf'
! `-mavx512er'
! `-mavx512cd'
! `-mavx512vl'
! `-mavx512bw'
! `-mavx512dq'
! `-mavx512ifma'
! `-mavx512vbmi'
! `-msha'
! `-maes'
! `-mpclmul'
! `-mclfushopt'
! `-mfsgsbase'
! `-mrdrnd'
! `-mf16c'
! `-mfma'
! `-mfma4'
! `-mprefetchwt1'
! `-mxop'
! `-mlwp'
! `-m3dnow'
! `-mpopcnt'
! `-mabm'
! `-mbmi'
! `-mbmi2'
! `-mlzcnt'
! `-mfxsr'
! `-mxsave'
! `-mxsaveopt'
! `-mxsavec'
! `-mxsaves'
! `-mrtm'
! `-mtbm'
! `-mmpx'
! `-mmwaitx'
! `-mclzero'
! `-mpku'
       These switches enable the use of instructions in the MMX, SSE,
       SSE2, SSE3, SSSE3, SSE4.1, AVX, AVX2, AVX512F, AVX512PF, AVX512ER,
       AVX512CD, SHA, AES, PCLMUL, FSGSBASE, RDRND, F16C, FMA, SSE4A,
       FMA4, XOP, LWP, ABM, AVX512VL, AVX512BW, AVX512DQ, AVX512IFMA
       AVX512VBMI, BMI, BMI2, FXSR, XSAVE, XSAVEOPT, LZCNT, RTM, MPX,
!      MWAITX, PKU or 3DNow!  extended instruction sets.  Each has a
!      corresponding `-mno-' option to disable use of these instructions.
  
       These extensions are also available as built-in functions: see
       *note x86 Built-in Functions::, for details of the functions
       enabled and disabled by these switches.
  
       To generate SSE/SSE2 instructions automatically from floating-point
!      code (as opposed to 387 instructions), see `-mfpmath=sse'.
  
!      GCC depresses SSEx instructions when `-mavx' is used. Instead, it
       generates new AVX instructions or AVX equivalence for all SSEx
       instructions when needed.
  
       These options enable GCC to use these extended instructions in
!      generated code, even without `-mfpmath=sse'.  Applications that
       perform run-time CPU detection must compile separate files for each
       supported architecture, using the appropriate flags.  In
       particular, the file containing the CPU detection code should be
       compiled without these options.
  
! `-mdump-tune-features'
       This option instructs GCC to dump the names of the x86 performance
!      tuning features and default settings. The names can be used in
!      `-mtune-ctrl=FEATURE-LIST'.
  
! `-mtune-ctrl=FEATURE-LIST'
!      This option is used to do fine grain control of x86 code
!      generation features.  FEATURE-LIST is a comma separated list of
!      FEATURE names. See also `-mdump-tune-features'. When specified,
!      the FEATURE is turned on if it is not preceded with `^',
!      otherwise, it is turned off.  `-mtune-ctrl=FEATURE-LIST' is
!      intended to be used by GCC developers. Using it may lead to code
!      paths not covered by testing and can potentially result in
!      compiler ICEs or runtime errors.
  
! `-mno-default'
!      This option instructs GCC to turn off all tunable features. See
!      also `-mtune-ctrl=FEATURE-LIST' and `-mdump-tune-features'.
  
! `-mcld'
!      This option instructs GCC to emit a `cld' instruction in the
       prologue of functions that use string instructions.  String
       instructions depend on the DF flag to select between autoincrement
       or autodecrement mode.  While the ABI specifies the DF flag to be
--- 21604,21733 ----
       misaligned memory access traps.  In addition, variable arguments
       are handled incorrectly for 16 byte aligned objects (including x87
       long double and __int128), leading to wrong results.  You must
!      build all modules with '-mpreferred-stack-boundary=3', including
       any libraries.  This includes the system libraries and startup
       modules.
  
! '-mincoming-stack-boundary=NUM'
       Assume the incoming stack is aligned to a 2 raised to NUM byte
!      boundary.  If '-mincoming-stack-boundary' is not specified, the one
!      specified by '-mpreferred-stack-boundary' is used.
  
!      On Pentium and Pentium Pro, 'double' and 'long double' values
!      should be aligned to an 8-byte boundary (see '-malign-double') or
!      suffer significant run time performance penalties.  On Pentium III,
!      the Streaming SIMD Extension (SSE) data type '__m128' may not work
!      properly if it is not 16-byte aligned.
  
       To ensure proper alignment of this values on the stack, the stack
!      boundary must be as aligned as that required by any value stored on
!      the stack.  Further, every function must be generated such that it
!      keeps the stack aligned.  Thus calling a function compiled with a
!      higher preferred stack boundary from a function compiled with a
!      lower preferred stack boundary most likely misaligns the stack.  It
!      is recommended that libraries that use callbacks always use the
       default setting.
  
       This extra alignment does consume extra stack space, and generally
       increases code size.  Code that is sensitive to stack space usage,
       such as embedded systems and operating system kernels, may want to
!      reduce the preferred alignment to '-mpreferred-stack-boundary=2'.
  
! '-mmmx'
! '-msse'
! '-msse2'
! '-msse3'
! '-mssse3'
! '-msse4'
! '-msse4a'
! '-msse4.1'
! '-msse4.2'
! '-mavx'
! '-mavx2'
! '-mavx512f'
! '-mavx512pf'
! '-mavx512er'
! '-mavx512cd'
! '-mavx512vl'
! '-mavx512bw'
! '-mavx512dq'
! '-mavx512ifma'
! '-mavx512vbmi'
! '-msha'
! '-maes'
! '-mpclmul'
! '-mclflushopt'
! '-mfsgsbase'
! '-mrdrnd'
! '-mf16c'
! '-mfma'
! '-mfma4'
! '-mprefetchwt1'
! '-mxop'
! '-mlwp'
! '-m3dnow'
! '-mpopcnt'
! '-mabm'
! '-mbmi'
! '-mbmi2'
! '-mlzcnt'
! '-mfxsr'
! '-mxsave'
! '-mxsaveopt'
! '-mxsavec'
! '-mxsaves'
! '-mrtm'
! '-mtbm'
! '-mmpx'
! '-mmwaitx'
! '-mclzero'
! '-mpku'
       These switches enable the use of instructions in the MMX, SSE,
       SSE2, SSE3, SSSE3, SSE4.1, AVX, AVX2, AVX512F, AVX512PF, AVX512ER,
       AVX512CD, SHA, AES, PCLMUL, FSGSBASE, RDRND, F16C, FMA, SSE4A,
       FMA4, XOP, LWP, ABM, AVX512VL, AVX512BW, AVX512DQ, AVX512IFMA
       AVX512VBMI, BMI, BMI2, FXSR, XSAVE, XSAVEOPT, LZCNT, RTM, MPX,
!      MWAITX, PKU or 3DNow! extended instruction sets.  Each has a
!      corresponding '-mno-' option to disable use of these instructions.
  
       These extensions are also available as built-in functions: see
       *note x86 Built-in Functions::, for details of the functions
       enabled and disabled by these switches.
  
       To generate SSE/SSE2 instructions automatically from floating-point
!      code (as opposed to 387 instructions), see '-mfpmath=sse'.
  
!      GCC depresses SSEx instructions when '-mavx' is used.  Instead, it
       generates new AVX instructions or AVX equivalence for all SSEx
       instructions when needed.
  
       These options enable GCC to use these extended instructions in
!      generated code, even without '-mfpmath=sse'.  Applications that
       perform run-time CPU detection must compile separate files for each
       supported architecture, using the appropriate flags.  In
       particular, the file containing the CPU detection code should be
       compiled without these options.
  
! '-mdump-tune-features'
       This option instructs GCC to dump the names of the x86 performance
!      tuning features and default settings.  The names can be used in
!      '-mtune-ctrl=FEATURE-LIST'.
  
! '-mtune-ctrl=FEATURE-LIST'
!      This option is used to do fine grain control of x86 code generation
!      features.  FEATURE-LIST is a comma separated list of FEATURE names.
!      See also '-mdump-tune-features'.  When specified, the FEATURE is
!      turned on if it is not preceded with '^', otherwise, it is turned
!      off.  '-mtune-ctrl=FEATURE-LIST' is intended to be used by GCC
!      developers.  Using it may lead to code paths not covered by testing
!      and can potentially result in compiler ICEs or runtime errors.
  
! '-mno-default'
!      This option instructs GCC to turn off all tunable features.  See
!      also '-mtune-ctrl=FEATURE-LIST' and '-mdump-tune-features'.
  
! '-mcld'
!      This option instructs GCC to emit a 'cld' instruction in the
       prologue of functions that use string instructions.  String
       instructions depend on the DF flag to select between autoincrement
       or autodecrement mode.  While the ABI specifies the DF flag to be
*************** These `-m' options are defined for the x
*** 21854,22026 ****
       dispatchers.  The exception handler can be invoked with the DF flag
       set, which leads to wrong direction mode when string instructions
       are used.  This option can be enabled by default on 32-bit x86
!      targets by configuring GCC with the `--enable-cld' configure
!      option.  Generation of `cld' instructions can be suppressed with
!      the `-mno-cld' compiler option in this case.
  
! `-mvzeroupper'
!      This option instructs GCC to emit a `vzeroupper' instruction
!      before a transfer of control flow out of the function to minimize
!      the AVX to SSE transition penalty as well as remove unnecessary
!      `zeroupper' intrinsics.
  
! `-mprefer-avx128'
       This option instructs GCC to use 128-bit AVX instructions instead
       of 256-bit AVX instructions in the auto-vectorizer.
  
! `-mcx16'
!      This option enables GCC to generate `CMPXCHG16B' instructions.
!      `CMPXCHG16B' allows for atomic operations on 128-bit double
!      quadword (or oword) data types.  This is useful for
!      high-resolution counters that can be updated by multiple
!      processors (or cores).  This instruction is generated as part of
!      atomic built-in functions: see *note __sync Builtins:: or *note
!      __atomic Builtins:: for details.
  
! `-msahf'
!      This option enables generation of `SAHF' instructions in 64-bit
       code.  Early Intel Pentium 4 CPUs with Intel 64 support, prior to
       the introduction of Pentium 4 G1 step in December 2005, lacked the
!      `LAHF' and `SAHF' instructions which are supported by AMD64.
!      These are load and store instructions, respectively, for certain
!      status flags.  In 64-bit mode, the `SAHF' instruction is used to
!      optimize `fmod', `drem', and `remainder' built-in functions; see
!      *note Other Builtins:: for details.
  
! `-mmovbe'
!      This option enables use of the `movbe' instruction to implement
!      `__builtin_bswap32' and `__builtin_bswap64'.
  
! `-mcrc32'
!      This option enables built-in functions `__builtin_ia32_crc32qi',
!      `__builtin_ia32_crc32hi', `__builtin_ia32_crc32si' and
!      `__builtin_ia32_crc32di' to generate the `crc32' machine
       instruction.
  
! `-mrecip'
!      This option enables use of `RCPSS' and `RSQRTSS' instructions (and
!      their vectorized variants `RCPPS' and `RSQRTPS') with an
!      additional Newton-Raphson step to increase precision instead of
!      `DIVSS' and `SQRTSS' (and their vectorized variants) for
!      single-precision floating-point arguments.  These instructions are
!      generated only when `-funsafe-math-optimizations' is enabled
!      together with `-ffinite-math-only' and `-fno-trapping-math'.  Note
!      that while the throughput of the sequence is higher than the
!      throughput of the non-reciprocal instruction, the precision of the
!      sequence can be decreased by up to 2 ulp (i.e. the inverse of 1.0
!      equals 0.99999994).
  
!      Note that GCC implements `1.0f/sqrtf(X)' in terms of `RSQRTSS' (or
!      `RSQRTPS') already with `-ffast-math' (or the above option
!      combination), and doesn't need `-mrecip'.
  
       Also note that GCC emits the above sequence with additional
       Newton-Raphson step for vectorized single-float division and
!      vectorized `sqrtf(X)' already with `-ffast-math' (or the above
!      option combination), and doesn't need `-mrecip'.
  
! `-mrecip=OPT'
       This option controls which reciprocal estimate instructions may be
       used.  OPT is a comma-separated list of options, which may be
!      preceded by a `!' to invert the option:
  
!     `all'
            Enable all estimate instructions.
  
!     `default'
!           Enable the default instructions, equivalent to `-mrecip'.
  
!     `none'
!           Disable all estimate instructions, equivalent to `-mno-recip'.
  
!     `div'
            Enable the approximation for scalar division.
  
!     `vec-div'
            Enable the approximation for vectorized division.
  
!     `sqrt'
            Enable the approximation for scalar square root.
  
!     `vec-sqrt'
            Enable the approximation for vectorized square root.
  
!      So, for example, `-mrecip=all,!sqrt' enables all of the reciprocal
       approximations, except for square root.
  
! `-mveclibabi=TYPE'
       Specifies the ABI type to use for vectorizing intrinsics using an
!      external library.  Supported values for TYPE are `svml' for the
!      Intel short vector math library and `acml' for the AMD math core
!      library.  To use this option, both `-ftree-vectorize' and
!      `-funsafe-math-optimizations' have to be enabled, and an SVML or
       ACML ABI-compatible library must be specified at link time.
  
!      GCC currently emits calls to `vmldExp2', `vmldLn2', `vmldLog102',
!      `vmldLog102', `vmldPow2', `vmldTanh2', `vmldTan2', `vmldAtan2',
!      `vmldAtanh2', `vmldCbrt2', `vmldSinh2', `vmldSin2', `vmldAsinh2',
!      `vmldAsin2', `vmldCosh2', `vmldCos2', `vmldAcosh2', `vmldAcos2',
!      `vmlsExp4', `vmlsLn4', `vmlsLog104', `vmlsLog104', `vmlsPow4',
!      `vmlsTanh4', `vmlsTan4', `vmlsAtan4', `vmlsAtanh4', `vmlsCbrt4',
!      `vmlsSinh4', `vmlsSin4', `vmlsAsinh4', `vmlsAsin4', `vmlsCosh4',
!      `vmlsCos4', `vmlsAcosh4' and `vmlsAcos4' for corresponding
!      function type when `-mveclibabi=svml' is used, and `__vrd2_sin',
!      `__vrd2_cos', `__vrd2_exp', `__vrd2_log', `__vrd2_log2',
!      `__vrd2_log10', `__vrs4_sinf', `__vrs4_cosf', `__vrs4_expf',
!      `__vrs4_logf', `__vrs4_log2f', `__vrs4_log10f' and `__vrs4_powf'
!      for the corresponding function type when `-mveclibabi=acml' is
       used.
  
! `-mabi=NAME'
       Generate code for the specified calling convention.  Permissible
!      values are `sysv' for the ABI used on GNU/Linux and other systems,
!      and `ms' for the Microsoft ABI.  The default is to use the
!      Microsoft ABI when targeting Microsoft Windows and the SysV ABI on
!      all other systems.  You can control this behavior for specific
!      functions by using the function attributes `ms_abi' and `sysv_abi'.
!      *Note Function Attributes::.
  
! `-mtls-dialect=TYPE'
!      Generate code to access thread-local storage using the `gnu' or
!      `gnu2' conventions.  `gnu' is the conservative default; `gnu2' is
       more efficient, but it may add compile- and run-time requirements
       that cannot be satisfied on all systems.
  
! `-mpush-args'
! `-mno-push-args'
       Use PUSH operations to store outgoing parameters.  This method is
!      shorter and usually equally fast as method using SUB/MOV
!      operations and is enabled by default.  In some cases disabling it
!      may improve performance because of improved scheduling and reduced
       dependencies.
  
! `-maccumulate-outgoing-args'
       If enabled, the maximum amount of space required for outgoing
       arguments is computed in the function prologue.  This is faster on
       most modern CPUs because of reduced dependencies, improved
       scheduling and reduced stack usage when the preferred stack
       boundary is not equal to 2.  The drawback is a notable increase in
!      code size.  This switch implies `-mno-push-args'.
  
! `-mthreads'
!      Support thread-safe exception handling on MinGW.  Programs that
!      rely on thread-safe exception handling must compile and link all
!      code with the `-mthreads' option.  When compiling, `-mthreads'
!      defines `-D_MT'; when linking, it links in a special thread helper
!      library `-lmingwthrd' which cleans up per-thread
!      exception-handling data.
  
- `-mms-bitfields'
- `-mno-ms-bitfields'
       Enable/disable bit-field layout compatible with the native
       Microsoft Windows compiler.
  
!      If `packed' is used on a structure, or if bit-fields are used, it
       may be that the Microsoft ABI lays out the structure differently
       than the way GCC normally does.  Particularly when moving packed
       data between functions compiled with GCC and the native Microsoft
!      compiler (either via function call or as data in a file), it may
!      be necessary to access either format.
  
       This option is enabled by default for Microsoft Windows targets.
       This behavior can also be controlled locally by use of variable or
--- 21736,21908 ----
       dispatchers.  The exception handler can be invoked with the DF flag
       set, which leads to wrong direction mode when string instructions
       are used.  This option can be enabled by default on 32-bit x86
!      targets by configuring GCC with the '--enable-cld' configure
!      option.  Generation of 'cld' instructions can be suppressed with
!      the '-mno-cld' compiler option in this case.
  
! '-mvzeroupper'
!      This option instructs GCC to emit a 'vzeroupper' instruction before
!      a transfer of control flow out of the function to minimize the AVX
!      to SSE transition penalty as well as remove unnecessary 'zeroupper'
!      intrinsics.
  
! '-mprefer-avx128'
       This option instructs GCC to use 128-bit AVX instructions instead
       of 256-bit AVX instructions in the auto-vectorizer.
  
! '-mcx16'
!      This option enables GCC to generate 'CMPXCHG16B' instructions.
!      'CMPXCHG16B' allows for atomic operations on 128-bit double
!      quadword (or oword) data types.  This is useful for high-resolution
!      counters that can be updated by multiple processors (or cores).
!      This instruction is generated as part of atomic built-in functions:
!      see *note __sync Builtins:: or *note __atomic Builtins:: for
!      details.
  
! '-msahf'
!      This option enables generation of 'SAHF' instructions in 64-bit
       code.  Early Intel Pentium 4 CPUs with Intel 64 support, prior to
       the introduction of Pentium 4 G1 step in December 2005, lacked the
!      'LAHF' and 'SAHF' instructions which are supported by AMD64.  These
!      are load and store instructions, respectively, for certain status
!      flags.  In 64-bit mode, the 'SAHF' instruction is used to optimize
!      'fmod', 'drem', and 'remainder' built-in functions; see *note Other
!      Builtins:: for details.
  
! '-mmovbe'
!      This option enables use of the 'movbe' instruction to implement
!      '__builtin_bswap32' and '__builtin_bswap64'.
  
! '-mcrc32'
!      This option enables built-in functions '__builtin_ia32_crc32qi',
!      '__builtin_ia32_crc32hi', '__builtin_ia32_crc32si' and
!      '__builtin_ia32_crc32di' to generate the 'crc32' machine
       instruction.
  
! '-mrecip'
!      This option enables use of 'RCPSS' and 'RSQRTSS' instructions (and
!      their vectorized variants 'RCPPS' and 'RSQRTPS') with an additional
!      Newton-Raphson step to increase precision instead of 'DIVSS' and
!      'SQRTSS' (and their vectorized variants) for single-precision
!      floating-point arguments.  These instructions are generated only
!      when '-funsafe-math-optimizations' is enabled together with
!      '-ffinite-math-only' and '-fno-trapping-math'.  Note that while the
!      throughput of the sequence is higher than the throughput of the
!      non-reciprocal instruction, the precision of the sequence can be
!      decreased by up to 2 ulp (i.e.  the inverse of 1.0 equals
!      0.99999994).
  
!      Note that GCC implements '1.0f/sqrtf(X)' in terms of 'RSQRTSS' (or
!      'RSQRTPS') already with '-ffast-math' (or the above option
!      combination), and doesn't need '-mrecip'.
  
       Also note that GCC emits the above sequence with additional
       Newton-Raphson step for vectorized single-float division and
!      vectorized 'sqrtf(X)' already with '-ffast-math' (or the above
!      option combination), and doesn't need '-mrecip'.
  
! '-mrecip=OPT'
       This option controls which reciprocal estimate instructions may be
       used.  OPT is a comma-separated list of options, which may be
!      preceded by a '!' to invert the option:
  
!      'all'
            Enable all estimate instructions.
  
!      'default'
!           Enable the default instructions, equivalent to '-mrecip'.
  
!      'none'
!           Disable all estimate instructions, equivalent to '-mno-recip'.
  
!      'div'
            Enable the approximation for scalar division.
  
!      'vec-div'
            Enable the approximation for vectorized division.
  
!      'sqrt'
            Enable the approximation for scalar square root.
  
!      'vec-sqrt'
            Enable the approximation for vectorized square root.
  
!      So, for example, '-mrecip=all,!sqrt' enables all of the reciprocal
       approximations, except for square root.
  
! '-mveclibabi=TYPE'
       Specifies the ABI type to use for vectorizing intrinsics using an
!      external library.  Supported values for TYPE are 'svml' for the
!      Intel short vector math library and 'acml' for the AMD math core
!      library.  To use this option, both '-ftree-vectorize' and
!      '-funsafe-math-optimizations' have to be enabled, and an SVML or
       ACML ABI-compatible library must be specified at link time.
  
!      GCC currently emits calls to 'vmldExp2', 'vmldLn2', 'vmldLog102',
!      'vmldLog102', 'vmldPow2', 'vmldTanh2', 'vmldTan2', 'vmldAtan2',
!      'vmldAtanh2', 'vmldCbrt2', 'vmldSinh2', 'vmldSin2', 'vmldAsinh2',
!      'vmldAsin2', 'vmldCosh2', 'vmldCos2', 'vmldAcosh2', 'vmldAcos2',
!      'vmlsExp4', 'vmlsLn4', 'vmlsLog104', 'vmlsLog104', 'vmlsPow4',
!      'vmlsTanh4', 'vmlsTan4', 'vmlsAtan4', 'vmlsAtanh4', 'vmlsCbrt4',
!      'vmlsSinh4', 'vmlsSin4', 'vmlsAsinh4', 'vmlsAsin4', 'vmlsCosh4',
!      'vmlsCos4', 'vmlsAcosh4' and 'vmlsAcos4' for corresponding function
!      type when '-mveclibabi=svml' is used, and '__vrd2_sin',
!      '__vrd2_cos', '__vrd2_exp', '__vrd2_log', '__vrd2_log2',
!      '__vrd2_log10', '__vrs4_sinf', '__vrs4_cosf', '__vrs4_expf',
!      '__vrs4_logf', '__vrs4_log2f', '__vrs4_log10f' and '__vrs4_powf'
!      for the corresponding function type when '-mveclibabi=acml' is
       used.
  
! '-mabi=NAME'
       Generate code for the specified calling convention.  Permissible
!      values are 'sysv' for the ABI used on GNU/Linux and other systems,
!      and 'ms' for the Microsoft ABI. The default is to use the Microsoft
!      ABI when targeting Microsoft Windows and the SysV ABI on all other
!      systems.  You can control this behavior for specific functions by
!      using the function attributes 'ms_abi' and 'sysv_abi'.  *Note
!      Function Attributes::.
  
! '-mtls-dialect=TYPE'
!      Generate code to access thread-local storage using the 'gnu' or
!      'gnu2' conventions.  'gnu' is the conservative default; 'gnu2' is
       more efficient, but it may add compile- and run-time requirements
       that cannot be satisfied on all systems.
  
! '-mpush-args'
! '-mno-push-args'
       Use PUSH operations to store outgoing parameters.  This method is
!      shorter and usually equally fast as method using SUB/MOV operations
!      and is enabled by default.  In some cases disabling it may improve
!      performance because of improved scheduling and reduced
       dependencies.
  
! '-maccumulate-outgoing-args'
       If enabled, the maximum amount of space required for outgoing
       arguments is computed in the function prologue.  This is faster on
       most modern CPUs because of reduced dependencies, improved
       scheduling and reduced stack usage when the preferred stack
       boundary is not equal to 2.  The drawback is a notable increase in
!      code size.  This switch implies '-mno-push-args'.
  
! '-mthreads'
!      Support thread-safe exception handling on MinGW. Programs that rely
!      on thread-safe exception handling must compile and link all code
!      with the '-mthreads' option.  When compiling, '-mthreads' defines
!      '-D_MT'; when linking, it links in a special thread helper library
!      '-lmingwthrd' which cleans up per-thread exception-handling data.
! 
! '-mms-bitfields'
! '-mno-ms-bitfields'
  
       Enable/disable bit-field layout compatible with the native
       Microsoft Windows compiler.
  
!      If 'packed' is used on a structure, or if bit-fields are used, it
       may be that the Microsoft ABI lays out the structure differently
       than the way GCC normally does.  Particularly when moving packed
       data between functions compiled with GCC and the native Microsoft
!      compiler (either via function call or as data in a file), it may be
!      necessary to access either format.
  
       This option is enabled by default for Microsoft Windows targets.
       This behavior can also be controlled locally by use of variable or
*************** These `-m' options are defined for the x
*** 22036,22057 ****
            which they are declared: the first member has the lowest
            memory address and the last member the highest.
  
!        2. Every data object has an alignment requirement.  The
!           alignment requirement for all data except structures, unions,
!           and arrays is either the size of the object or the current
!           packing size (specified with either the `aligned' attribute
!           or the `pack' pragma), whichever is less.  For structures,
!           unions, and arrays, the alignment requirement is the largest
!           alignment requirement of its members.  Every object is
!           allocated an offset so that:
  
                 offset % alignment_requirement == 0
  
!        3. Adjacent bit-fields are packed into the same 1-, 2-, or
!           4-byte allocation unit if the integral types are the same
!           size and if the next bit-field fits into the current
!           allocation unit without crossing the boundary imposed by the
!           common alignment requirements of the bit-fields.
  
       MSVC interprets zero-length bit-fields in the following ways:
  
--- 21918,21939 ----
            which they are declared: the first member has the lowest
            memory address and the last member the highest.
  
!        2. Every data object has an alignment requirement.  The alignment
!           requirement for all data except structures, unions, and arrays
!           is either the size of the object or the current packing size
!           (specified with either the 'aligned' attribute or the 'pack'
!           pragma), whichever is less.  For structures, unions, and
!           arrays, the alignment requirement is the largest alignment
!           requirement of its members.  Every object is allocated an
!           offset so that:
  
                 offset % alignment_requirement == 0
  
!        3. Adjacent bit-fields are packed into the same 1-, 2-, or 4-byte
!           allocation unit if the integral types are the same size and if
!           the next bit-field fits into the current allocation unit
!           without crossing the boundary imposed by the common alignment
!           requirements of the bit-fields.
  
       MSVC interprets zero-length bit-fields in the following ways:
  
*************** These `-m' options are defined for the x
*** 22067,22079 ****
                    unsigned long bf_2 : 12;
                  } t1;
  
!           The size of `t1' is 8 bytes with the zero-length bit-field.
!           If the zero-length bit-field were removed, `t1''s size would
            be 4 bytes.
  
         2. If a zero-length bit-field is inserted after a bit-field,
!           `foo', and the alignment of the zero-length bit-field is
!           greater than the member that follows it, `bar', `bar' is
            aligned as the type of the zero-length bit-field.
  
            For example:
--- 21949,21961 ----
                    unsigned long bf_2 : 12;
                  } t1;
  
!           The size of 't1' is 8 bytes with the zero-length bit-field.
!           If the zero-length bit-field were removed, 't1''s size would
            be 4 bytes.
  
         2. If a zero-length bit-field is inserted after a bit-field,
!           'foo', and the alignment of the zero-length bit-field is
!           greater than the member that follows it, 'bar', 'bar' is
            aligned as the type of the zero-length bit-field.
  
            For example:
*************** These `-m' options are defined for the x
*** 22092,22100 ****
                    double bar;
                  } t3;
  
!           For `t2', `bar' is placed at offset 2, rather than offset 1.
!           Accordingly, the size of `t2' is 4.  For `t3', the zero-length
!           bit-field does not affect the alignment of `bar' or, as a
            result, the size of the structure.
  
            Taking this into account, it is important to note the
--- 21974,21982 ----
                    double bar;
                  } t3;
  
!           For 't2', 'bar' is placed at offset 2, rather than offset 1.
!           Accordingly, the size of 't2' is 4.  For 't3', the zero-length
!           bit-field does not affect the alignment of 'bar' or, as a
            result, the size of the structure.
  
            Taking this into account, it is important to note the
*************** These `-m' options are defined for the x
*** 22102,22108 ****
  
              1. If a zero-length bit-field follows a normal bit-field,
                 the type of the zero-length bit-field may affect the
!                alignment of the structure as whole. For example, `t2'
                 has a size of 4 bytes, since the zero-length bit-field
                 follows a normal bit-field, and is of type short.
  
--- 21984,21990 ----
  
              1. If a zero-length bit-field follows a normal bit-field,
                 the type of the zero-length bit-field may affect the
!                alignment of the structure as whole.  For example, 't2'
                 has a size of 4 bytes, since the zero-length bit-field
                 follows a normal bit-field, and is of type short.
  
*************** These `-m' options are defined for the x
*** 22116,22122 ****
                         long : 0;
                       } t4;
  
!                Here, `t4' takes up 4 bytes.
  
         3. Zero-length bit-fields following non-bit-field members are
            ignored:
--- 21998,22004 ----
                         long : 0;
                       } t4;
  
!                Here, 't4' takes up 4 bytes.
  
         3. Zero-length bit-fields following non-bit-field members are
            ignored:
*************** These `-m' options are defined for the x
*** 22128,22329 ****
                    char bar;
                  } t5;
  
!           Here, `t5' takes up 2 bytes.
  
! `-mno-align-stringops'
       Do not align the destination of inlined string operations.  This
       switch reduces code size and improves performance in case the
       destination is already aligned, but GCC doesn't know about it.
  
! `-minline-all-stringops'
       By default GCC inlines string operations only when the destination
       is known to be aligned to least a 4-byte boundary.  This enables
       more inlining and increases code size, but may improve performance
!      of code that depends on fast `memcpy', `strlen', and `memset' for
       short lengths.
  
! `-minline-stringops-dynamically'
       For string operations of unknown size, use run-time checks with
       inline code for small blocks and a library call for large blocks.
  
! `-mstringop-strategy=ALG'
       Override the internal decision heuristic for the particular
       algorithm to use for inlining string operations.  The allowed
       values for ALG are:
  
!     `rep_byte'
!     `rep_4byte'
!     `rep_8byte'
!           Expand using i386 `rep' prefix of the specified size.
  
!     `byte_loop'
!     `loop'
!     `unrolled_loop'
            Expand into an inline loop.
  
!     `libcall'
            Always use a library call.
  
! `-mmemcpy-strategy=STRATEGY'
       Override the internal decision heuristic to decide if
!      `__builtin_memcpy' should be inlined and what inline algorithm to
!      use when the expected size of the copy operation is known. STRATEGY
!      is a comma-separated list of ALG:MAX_SIZE:DEST_ALIGN triplets.
!      ALG is specified in `-mstringop-strategy', MAX_SIZE specifies the
!      max byte size with which inline algorithm ALG is allowed.  For the
!      last triplet, the MAX_SIZE must be `-1'. The MAX_SIZE of the
!      triplets in the list must be specified in increasing order.  The
!      minimal byte size for ALG is `0' for the first triplet and
!      `MAX_SIZE + 1' of the preceding range.
  
! `-mmemset-strategy=STRATEGY'
!      The option is similar to `-mmemcpy-strategy=' except that it is to
!      control `__builtin_memset' expansion.
  
! `-momit-leaf-frame-pointer'
       Don't keep the frame pointer in a register for leaf functions.
       This avoids the instructions to save, set up, and restore frame
       pointers and makes an extra register available in leaf functions.
!      The option `-fomit-leaf-frame-pointer' removes the frame pointer
       for leaf functions, which might make debugging harder.
  
! `-mtls-direct-seg-refs'
! `-mno-tls-direct-seg-refs'
       Controls whether TLS variables may be accessed with offsets from
!      the TLS segment register (`%gs' for 32-bit, `%fs' for 64-bit), or
       whether the thread base pointer must be added.  Whether or not this
       is valid depends on the operating system, and whether it maps the
       segment to cover the entire TLS area.
  
       For systems that use the GNU C Library, the default is on.
  
! `-msse2avx'
! `-mno-sse2avx'
       Specify that the assembler should encode SSE instructions with VEX
!      prefix.  The option `-mavx' turns this on by default.
  
! `-mfentry'
! `-mno-fentry'
!      If profiling is active (`-pg'), put the profiling counter call
       before the prologue.  Note: On x86 architectures the attribute
!      `ms_hook_prologue' isn't possible at the moment for `-mfentry' and
!      `-pg'.
  
! `-mrecord-mcount'
! `-mno-record-mcount'
!      If profiling is active (`-pg'), generate a __mcount_loc section
!      that contains pointers to each profiling call. This is useful for
       automatically patching and out calls.
  
! `-mnop-mcount'
! `-mno-nop-mcount'
!      If profiling is active (`-pg'), generate the calls to the
!      profiling functions as nops. This is useful when they should be
!      patched in later dynamically. This is likely only useful together
!      with `-mrecord-mcount'.
  
! `-mskip-rax-setup'
! `-mno-skip-rax-setup'
       When generating code for the x86-64 architecture with SSE
!      extensions disabled, `-mskip-rax-setup' can be used to skip
!      setting up RAX register when there are no variable arguments
!      passed in vector registers.
  
!      *Warning:* Since RAX register is used to avoid unnecessarily
!      saving vector registers on stack when passing variable arguments,
!      the impacts of this option are callees may waste some stack space,
       misbehave or jump to a random location.  GCC 4.4 or newer don't
       have those issues, regardless the RAX register value.
  
! `-m8bit-idiv'
! `-mno-8bit-idiv'
       On some processors, like Intel Atom, 8-bit unsigned integer divide
       is much faster than 32-bit/64-bit integer divide.  This option
       generates a run-time check.  If both dividend and divisor are
       within range of 0 to 255, 8-bit unsigned integer divide is used
       instead of 32-bit/64-bit integer divide.
  
! `-mavx256-split-unaligned-load'
! `-mavx256-split-unaligned-store'
       Split 32-byte AVX unaligned load and store.
  
! `-mstack-protector-guard=GUARD'
       Generate stack protection code using canary at GUARD.  Supported
!      locations are `global' for global canary or `tls' for per-thread
!      canary in the TLS block (the default).  This option has effect
!      only when `-fstack-protector' or `-fstack-protector-all' is
!      specified.
  
! `-mmitigate-rop'
       Try to avoid generating code sequences that contain unintended
!      return opcodes, to mitigate against certain forms of attack. At
!      the moment, this option is limited in what it can do and should
!      not be relied on to provide serious protection.
  
  
!  These `-m' switches are supported in addition to the above on x86-64
  processors in 64-bit environments.
  
! `-m32'
! `-m64'
! `-mx32'
! `-m16'
! `-miamcu'
       Generate code for a 16-bit, 32-bit or 64-bit environment.  The
!      `-m32' option sets `int', `long', and pointer types to 32 bits, and
       generates code that runs on any i386 system.
  
!      The `-m64' option sets `int' to 32 bits and `long' and pointer
       types to 64 bits, and generates code for the x86-64 architecture.
!      For Darwin only the `-m64' option also turns off the `-fno-pic'
!      and `-mdynamic-no-pic' options.
  
!      The `-mx32' option sets `int', `long', and pointer types to 32
       bits, and generates code for the x86-64 architecture.
  
!      The `-m16' option is the same as `-m32', except for that it
!      outputs the `.code16gcc' assembly directive at the beginning of
!      the assembly output so that the binary can run in 16-bit mode.
  
!      The `-miamcu' option generates code which conforms to Intel MCU
!      psABI.  It requires the `-m32' option to be turned on.
  
! `-mno-red-zone'
!      Do not use a so-called "red zone" for x86-64 code.  The red zone
!      is mandated by the x86-64 ABI; it is a 128-byte area beyond the
       location of the stack pointer that is not modified by signal or
       interrupt handlers and therefore can be used for temporary data
!      without adjusting the stack pointer.  The flag `-mno-red-zone'
       disables this red zone.
  
! `-mcmodel=small'
!      Generate code for the small code model: the program and its
!      symbols must be linked in the lower 2 GB of the address space.
!      Pointers are 64 bits.  Programs can be statically or dynamically
!      linked.  This is the default code model.
  
! `-mcmodel=kernel'
       Generate code for the kernel code model.  The kernel runs in the
       negative 2 GB of the address space.  This model has to be used for
       Linux kernel code.
  
! `-mcmodel=medium'
       Generate code for the medium model: the program is linked in the
       lower 2 GB of the address space.  Small symbols are also placed
!      there.  Symbols with sizes larger than `-mlarge-data-threshold'
!      are put into large data or BSS sections and can be located above
!      2GB.  Programs can be statically or dynamically linked.
  
! `-mcmodel=large'
       Generate code for the large model.  This model makes no assumptions
       about addresses and sizes of sections.
  
! `-maddress-mode=long'
       Generate code for long address mode.  This is only supported for
       64-bit and x32 environments.  It is the default address mode for
       64-bit environments.
  
! `-maddress-mode=short'
       Generate code for short address mode.  This is only supported for
       32-bit and x32 environments.  It is the default address mode for
       32-bit and x32 environments.
--- 22010,22240 ----
                    char bar;
                  } t5;
  
!           Here, 't5' takes up 2 bytes.
  
! '-mno-align-stringops'
       Do not align the destination of inlined string operations.  This
       switch reduces code size and improves performance in case the
       destination is already aligned, but GCC doesn't know about it.
  
! '-minline-all-stringops'
       By default GCC inlines string operations only when the destination
       is known to be aligned to least a 4-byte boundary.  This enables
       more inlining and increases code size, but may improve performance
!      of code that depends on fast 'memcpy', 'strlen', and 'memset' for
       short lengths.
  
! '-minline-stringops-dynamically'
       For string operations of unknown size, use run-time checks with
       inline code for small blocks and a library call for large blocks.
  
! '-mstringop-strategy=ALG'
       Override the internal decision heuristic for the particular
       algorithm to use for inlining string operations.  The allowed
       values for ALG are:
  
!      'rep_byte'
!      'rep_4byte'
!      'rep_8byte'
!           Expand using i386 'rep' prefix of the specified size.
  
!      'byte_loop'
!      'loop'
!      'unrolled_loop'
            Expand into an inline loop.
  
!      'libcall'
            Always use a library call.
  
! '-mmemcpy-strategy=STRATEGY'
       Override the internal decision heuristic to decide if
!      '__builtin_memcpy' should be inlined and what inline algorithm to
!      use when the expected size of the copy operation is known.
!      STRATEGY is a comma-separated list of ALG:MAX_SIZE:DEST_ALIGN
!      triplets.  ALG is specified in '-mstringop-strategy', MAX_SIZE
!      specifies the max byte size with which inline algorithm ALG is
!      allowed.  For the last triplet, the MAX_SIZE must be '-1'.  The
!      MAX_SIZE of the triplets in the list must be specified in
!      increasing order.  The minimal byte size for ALG is '0' for the
!      first triplet and 'MAX_SIZE + 1' of the preceding range.
  
! '-mmemset-strategy=STRATEGY'
!      The option is similar to '-mmemcpy-strategy=' except that it is to
!      control '__builtin_memset' expansion.
  
! '-momit-leaf-frame-pointer'
       Don't keep the frame pointer in a register for leaf functions.
       This avoids the instructions to save, set up, and restore frame
       pointers and makes an extra register available in leaf functions.
!      The option '-fomit-leaf-frame-pointer' removes the frame pointer
       for leaf functions, which might make debugging harder.
  
! '-mtls-direct-seg-refs'
! '-mno-tls-direct-seg-refs'
       Controls whether TLS variables may be accessed with offsets from
!      the TLS segment register ('%gs' for 32-bit, '%fs' for 64-bit), or
       whether the thread base pointer must be added.  Whether or not this
       is valid depends on the operating system, and whether it maps the
       segment to cover the entire TLS area.
  
       For systems that use the GNU C Library, the default is on.
  
! '-msse2avx'
! '-mno-sse2avx'
       Specify that the assembler should encode SSE instructions with VEX
!      prefix.  The option '-mavx' turns this on by default.
  
! '-mfentry'
! '-mno-fentry'
!      If profiling is active ('-pg'), put the profiling counter call
       before the prologue.  Note: On x86 architectures the attribute
!      'ms_hook_prologue' isn't possible at the moment for '-mfentry' and
!      '-pg'.
  
! '-mrecord-mcount'
! '-mno-record-mcount'
!      If profiling is active ('-pg'), generate a __mcount_loc section
!      that contains pointers to each profiling call.  This is useful for
       automatically patching and out calls.
  
! '-mnop-mcount'
! '-mno-nop-mcount'
!      If profiling is active ('-pg'), generate the calls to the profiling
!      functions as nops.  This is useful when they should be patched in
!      later dynamically.  This is likely only useful together with
!      '-mrecord-mcount'.
  
! '-mskip-rax-setup'
! '-mno-skip-rax-setup'
       When generating code for the x86-64 architecture with SSE
!      extensions disabled, '-mskip-rax-setup' can be used to skip setting
!      up RAX register when there are no variable arguments passed in
!      vector registers.
  
!      *Warning:* Since RAX register is used to avoid unnecessarily saving
!      vector registers on stack when passing variable arguments, the
!      impacts of this option are callees may waste some stack space,
       misbehave or jump to a random location.  GCC 4.4 or newer don't
       have those issues, regardless the RAX register value.
  
! '-m8bit-idiv'
! '-mno-8bit-idiv'
       On some processors, like Intel Atom, 8-bit unsigned integer divide
       is much faster than 32-bit/64-bit integer divide.  This option
       generates a run-time check.  If both dividend and divisor are
       within range of 0 to 255, 8-bit unsigned integer divide is used
       instead of 32-bit/64-bit integer divide.
  
! '-mavx256-split-unaligned-load'
! '-mavx256-split-unaligned-store'
       Split 32-byte AVX unaligned load and store.
  
! '-mstack-protector-guard=GUARD'
       Generate stack protection code using canary at GUARD.  Supported
!      locations are 'global' for global canary or 'tls' for per-thread
!      canary in the TLS block (the default).  This option has effect only
!      when '-fstack-protector' or '-fstack-protector-all' is specified.
  
! '-mmitigate-rop'
       Try to avoid generating code sequences that contain unintended
!      return opcodes, to mitigate against certain forms of attack.  At
!      the moment, this option is limited in what it can do and should not
!      be relied on to provide serious protection.
  
+ '-mindirect-branch=CHOICE'
+      Convert indirect call and jump with CHOICE.  The default is 'keep',
+      which keeps indirect call and jump unmodified.  'thunk' converts
+      indirect call and jump to call and return thunk.  'thunk-inline'
+      converts indirect call and jump to inlined call and return thunk.
+      'thunk-extern' converts indirect call and jump to external call and
+      return thunk provided in a separate object file.  You can control
+      this behavior for a specific function by using the function
+      attribute 'indirect_branch'.  *Note Function Attributes::.
  
!      Note that '-mcmodel=large' is incompatible with
!      '-mindirect-branch=thunk' nor '-mindirect-branch=thunk-extern'
!      since the thunk function may not be reachable in large code model.
! 
! '-mfunction-return=CHOICE'
!      Convert function return with CHOICE.  The default is 'keep', which
!      keeps function return unmodified.  'thunk' converts function return
!      to call and return thunk.  'thunk-inline' converts function return
!      to inlined call and return thunk.  'thunk-extern' converts function
!      return to external call and return thunk provided in a separate
!      object file.  You can control this behavior for a specific function
!      by using the function attribute 'function_return'.  *Note Function
!      Attributes::.
! 
!      Note that '-mcmodel=large' is incompatible with
!      '-mfunction-return=thunk' nor '-mfunction-return=thunk-extern'
!      since the thunk function may not be reachable in large code model.
! 
! '-mindirect-branch-register'
!      Force indirect call and jump via register.
! 
!  These '-m' switches are supported in addition to the above on x86-64
  processors in 64-bit environments.
  
! '-m32'
! '-m64'
! '-mx32'
! '-m16'
! '-miamcu'
       Generate code for a 16-bit, 32-bit or 64-bit environment.  The
!      '-m32' option sets 'int', 'long', and pointer types to 32 bits, and
       generates code that runs on any i386 system.
  
!      The '-m64' option sets 'int' to 32 bits and 'long' and pointer
       types to 64 bits, and generates code for the x86-64 architecture.
!      For Darwin only the '-m64' option also turns off the '-fno-pic' and
!      '-mdynamic-no-pic' options.
  
!      The '-mx32' option sets 'int', 'long', and pointer types to 32
       bits, and generates code for the x86-64 architecture.
  
!      The '-m16' option is the same as '-m32', except for that it outputs
!      the '.code16gcc' assembly directive at the beginning of the
!      assembly output so that the binary can run in 16-bit mode.
  
!      The '-miamcu' option generates code which conforms to Intel MCU
!      psABI. It requires the '-m32' option to be turned on.
  
! '-mno-red-zone'
!      Do not use a so-called "red zone" for x86-64 code.  The red zone is
!      mandated by the x86-64 ABI; it is a 128-byte area beyond the
       location of the stack pointer that is not modified by signal or
       interrupt handlers and therefore can be used for temporary data
!      without adjusting the stack pointer.  The flag '-mno-red-zone'
       disables this red zone.
  
! '-mcmodel=small'
!      Generate code for the small code model: the program and its symbols
!      must be linked in the lower 2 GB of the address space.  Pointers
!      are 64 bits.  Programs can be statically or dynamically linked.
!      This is the default code model.
  
! '-mcmodel=kernel'
       Generate code for the kernel code model.  The kernel runs in the
       negative 2 GB of the address space.  This model has to be used for
       Linux kernel code.
  
! '-mcmodel=medium'
       Generate code for the medium model: the program is linked in the
       lower 2 GB of the address space.  Small symbols are also placed
!      there.  Symbols with sizes larger than '-mlarge-data-threshold' are
!      put into large data or BSS sections and can be located above 2GB.
!      Programs can be statically or dynamically linked.
  
! '-mcmodel=large'
       Generate code for the large model.  This model makes no assumptions
       about addresses and sizes of sections.
  
! '-maddress-mode=long'
       Generate code for long address mode.  This is only supported for
       64-bit and x32 environments.  It is the default address mode for
       64-bit environments.
  
! '-maddress-mode=short'
       Generate code for short address mode.  This is only supported for
       32-bit and x32 environments.  It is the default address mode for
       32-bit and x32 environments.
*************** File: gcc.info,  Node: x86 Windows Optio
*** 22336,22398 ****
  
  These additional options are available for Microsoft Windows targets:
  
! `-mconsole'
       This option specifies that a console application is to be
!      generated, by instructing the linker to set the PE header
!      subsystem type required for console applications.  This option is
!      available for Cygwin and MinGW targets and is enabled by default
!      on those targets.
  
! `-mdll'
       This option is available for Cygwin and MinGW targets.  It
       specifies that a DLL--a dynamic link library--is to be generated,
       enabling the selection of the required runtime startup object and
       entry point.
  
! `-mnop-fun-dllimport'
       This option is available for Cygwin and MinGW targets.  It
!      specifies that the `dllimport' attribute should be ignored.
  
! `-mthread'
!      This option is available for MinGW targets. It specifies that
       MinGW-specific thread support is to be used.
  
! `-municode'
       This option is available for MinGW-w64 targets.  It causes the
!      `UNICODE' preprocessor macro to be predefined, and chooses
       Unicode-capable runtime startup code.
  
! `-mwin32'
       This option is available for Cygwin and MinGW targets.  It
       specifies that the typical Microsoft Windows predefined macros are
       to be set in the pre-processor, but does not influence the choice
       of runtime library/startup code.
  
! `-mwindows'
       This option is available for Cygwin and MinGW targets.  It
       specifies that a GUI application is to be generated by instructing
       the linker to set the PE header subsystem type appropriately.
  
! `-fno-set-stack-executable'
!      This option is available for MinGW targets. It specifies that the
       executable flag for the stack used by nested functions isn't set.
       This is necessary for binaries running in kernel mode of Microsoft
       Windows, as there the User32 API, which is used to set executable
       privileges, isn't available.
  
! `-fwritable-relocated-rdata'
       This option is available for MinGW and Cygwin targets.  It
       specifies that relocated-data in read-only section is put into the
!      `.data' section.  This is a necessary for older runtimes not
!      supporting modification of `.rdata' sections for pseudo-relocation.
  
! `-mpe-aligned-commons'
       This option is available for Cygwin and MinGW targets.  It
!      specifies that the GNU extension to the PE file format that
!      permits the correct alignment of COMMON variables should be used
!      when generating code.  It is enabled by default if GCC detects
!      that the target assembler found during configuration supports the
!      feature.
  
   See also under *note x86 Options:: for standard options.
  
--- 22247,22308 ----
  
  These additional options are available for Microsoft Windows targets:
  
! '-mconsole'
       This option specifies that a console application is to be
!      generated, by instructing the linker to set the PE header subsystem
!      type required for console applications.  This option is available
!      for Cygwin and MinGW targets and is enabled by default on those
!      targets.
  
! '-mdll'
       This option is available for Cygwin and MinGW targets.  It
       specifies that a DLL--a dynamic link library--is to be generated,
       enabling the selection of the required runtime startup object and
       entry point.
  
! '-mnop-fun-dllimport'
       This option is available for Cygwin and MinGW targets.  It
!      specifies that the 'dllimport' attribute should be ignored.
  
! '-mthread'
!      This option is available for MinGW targets.  It specifies that
       MinGW-specific thread support is to be used.
  
! '-municode'
       This option is available for MinGW-w64 targets.  It causes the
!      'UNICODE' preprocessor macro to be predefined, and chooses
       Unicode-capable runtime startup code.
  
! '-mwin32'
       This option is available for Cygwin and MinGW targets.  It
       specifies that the typical Microsoft Windows predefined macros are
       to be set in the pre-processor, but does not influence the choice
       of runtime library/startup code.
  
! '-mwindows'
       This option is available for Cygwin and MinGW targets.  It
       specifies that a GUI application is to be generated by instructing
       the linker to set the PE header subsystem type appropriately.
  
! '-fno-set-stack-executable'
!      This option is available for MinGW targets.  It specifies that the
       executable flag for the stack used by nested functions isn't set.
       This is necessary for binaries running in kernel mode of Microsoft
       Windows, as there the User32 API, which is used to set executable
       privileges, isn't available.
  
! '-fwritable-relocated-rdata'
       This option is available for MinGW and Cygwin targets.  It
       specifies that relocated-data in read-only section is put into the
!      '.data' section.  This is a necessary for older runtimes not
!      supporting modification of '.rdata' sections for pseudo-relocation.
  
! '-mpe-aligned-commons'
       This option is available for Cygwin and MinGW targets.  It
!      specifies that the GNU extension to the PE file format that permits
!      the correct alignment of COMMON variables should be used when
!      generating code.  It is enabled by default if GCC detects that the
!      target assembler found during configuration supports the feature.
  
   See also under *note x86 Options:: for standard options.
  
*************** File: gcc.info,  Node: Xstormy16 Options
*** 22404,22410 ****
  
  These options are defined for Xstormy16:
  
! `-msim'
       Choose startup files and linker script suitable for the simulator.
  
  
--- 22314,22320 ----
  
  These options are defined for Xstormy16:
  
! '-msim'
       Choose startup files and linker script suitable for the simulator.
  
  
*************** File: gcc.info,  Node: Xtensa Options,
*** 22415,22513 ****
  
  These options are supported for Xtensa targets:
  
! `-mconst16'
! `-mno-const16'
!      Enable or disable use of `CONST16' instructions for loading
!      constant values.  The `CONST16' instruction is currently not a
!      standard option from Tensilica.  When enabled, `CONST16'
!      instructions are always used in place of the standard `L32R'
!      instructions.  The use of `CONST16' is enabled by default only if
!      the `L32R' instruction is not available.
  
! `-mfused-madd'
! `-mno-fused-madd'
       Enable or disable use of fused multiply/add and multiply/subtract
       instructions in the floating-point option.  This has no effect if
       the floating-point option is not also enabled.  Disabling fused
!      multiply/add and multiply/subtract instructions forces the
!      compiler to use separate instructions for the multiply and
!      add/subtract operations.  This may be desirable in some cases
!      where strict IEEE 754-compliant results are required: the fused
!      multiply add/subtract instructions do not round the intermediate
!      result, thereby producing results with _more_ bits of precision
!      than specified by the IEEE standard.  Disabling fused multiply
!      add/subtract instructions also ensures that the program output is
!      not sensitive to the compiler's ability to combine multiply and
!      add/subtract operations.
  
! `-mserialize-volatile'
! `-mno-serialize-volatile'
!      When this option is enabled, GCC inserts `MEMW' instructions before
!      `volatile' memory references to guarantee sequential consistency.
!      The default is `-mserialize-volatile'.  Use
!      `-mno-serialize-volatile' to omit the `MEMW' instructions.
  
! `-mforce-no-pic'
       For targets, like GNU/Linux, where all user-mode Xtensa code must
       be position-independent code (PIC), this option disables PIC for
       compiling kernel code.
  
! `-mtext-section-literals'
! `-mno-text-section-literals'
       These options control the treatment of literal pools.  The default
!      is `-mno-text-section-literals', which places literals in a
       separate section in the output file.  This allows the literal pool
       to be placed in a data RAM/ROM, and it also allows the linker to
       combine literal pools from separate object files to remove
       redundant literals and improve code size.  With
!      `-mtext-section-literals', the literals are interspersed in the
       text section in order to keep them as close as possible to their
       references.  This may be necessary for large assembly files.
       Literals for each function are placed right before that function.
  
! `-mauto-litpools'
! `-mno-auto-litpools'
       These options control the treatment of literal pools.  The default
!      is `-mno-auto-litpools', which places literals in a separate
!      section in the output file unless `-mtext-section-literals' is
!      used.  With `-mauto-litpools' the literals are interspersed in the
       text section by the assembler.  Compiler does not produce explicit
!      `.literal' directives and loads literals into registers with
!      `MOVI' instructions instead of `L32R' to let the assembler do
!      relaxation and place literals as necessary.  This option allows
!      assembler to create several literal pools per function and assemble
!      very big functions, which may not be possible with
!      `-mtext-section-literals'.
  
! `-mtarget-align'
! `-mno-target-align'
       When this option is enabled, GCC instructs the assembler to
       automatically align instructions to reduce branch penalties at the
       expense of some code density.  The assembler attempts to widen
       density instructions to align branch targets and the instructions
       following call instructions.  If there are not enough preceding
       safe density instructions to align a target, no widening is
!      performed.  The default is `-mtarget-align'.  These options do not
!      affect the treatment of auto-aligned instructions like `LOOP',
       which the assembler always aligns, either by widening density
       instructions or by inserting NOP instructions.
  
! `-mlongcalls'
! `-mno-longcalls'
       When this option is enabled, GCC instructs the assembler to
       translate direct calls to indirect calls unless it can determine
       that the target of a direct call is in the range allowed by the
       call instruction.  This translation typically occurs for calls to
       functions in other source files.  Specifically, the assembler
!      translates a direct `CALL' instruction into an `L32R' followed by
!      a `CALLX' instruction.  The default is `-mno-longcalls'.  This
!      option should be used in programs where the call target can
!      potentially be out of range.  This option is implemented in the
!      assembler, not the compiler, so the assembly code generated by GCC
!      still shows direct call instructions--look at the disassembled
!      object code to see the actual instructions.  Note that the
!      assembler uses an indirect call for every cross-file call, not
!      just those that really are out of range.
  
  
  File: gcc.info,  Node: zSeries Options,  Prev: Xtensa Options,  Up: Submodel Options
--- 22325,22423 ----
  
  These options are supported for Xtensa targets:
  
! '-mconst16'
! '-mno-const16'
!      Enable or disable use of 'CONST16' instructions for loading
!      constant values.  The 'CONST16' instruction is currently not a
!      standard option from Tensilica.  When enabled, 'CONST16'
!      instructions are always used in place of the standard 'L32R'
!      instructions.  The use of 'CONST16' is enabled by default only if
!      the 'L32R' instruction is not available.
  
! '-mfused-madd'
! '-mno-fused-madd'
       Enable or disable use of fused multiply/add and multiply/subtract
       instructions in the floating-point option.  This has no effect if
       the floating-point option is not also enabled.  Disabling fused
!      multiply/add and multiply/subtract instructions forces the compiler
!      to use separate instructions for the multiply and add/subtract
!      operations.  This may be desirable in some cases where strict IEEE
!      754-compliant results are required: the fused multiply add/subtract
!      instructions do not round the intermediate result, thereby
!      producing results with _more_ bits of precision than specified by
!      the IEEE standard.  Disabling fused multiply add/subtract
!      instructions also ensures that the program output is not sensitive
!      to the compiler's ability to combine multiply and add/subtract
!      operations.
  
! '-mserialize-volatile'
! '-mno-serialize-volatile'
!      When this option is enabled, GCC inserts 'MEMW' instructions before
!      'volatile' memory references to guarantee sequential consistency.
!      The default is '-mserialize-volatile'.  Use
!      '-mno-serialize-volatile' to omit the 'MEMW' instructions.
  
! '-mforce-no-pic'
       For targets, like GNU/Linux, where all user-mode Xtensa code must
       be position-independent code (PIC), this option disables PIC for
       compiling kernel code.
  
! '-mtext-section-literals'
! '-mno-text-section-literals'
       These options control the treatment of literal pools.  The default
!      is '-mno-text-section-literals', which places literals in a
       separate section in the output file.  This allows the literal pool
       to be placed in a data RAM/ROM, and it also allows the linker to
       combine literal pools from separate object files to remove
       redundant literals and improve code size.  With
!      '-mtext-section-literals', the literals are interspersed in the
       text section in order to keep them as close as possible to their
       references.  This may be necessary for large assembly files.
       Literals for each function are placed right before that function.
  
! '-mauto-litpools'
! '-mno-auto-litpools'
       These options control the treatment of literal pools.  The default
!      is '-mno-auto-litpools', which places literals in a separate
!      section in the output file unless '-mtext-section-literals' is
!      used.  With '-mauto-litpools' the literals are interspersed in the
       text section by the assembler.  Compiler does not produce explicit
!      '.literal' directives and loads literals into registers with 'MOVI'
!      instructions instead of 'L32R' to let the assembler do relaxation
!      and place literals as necessary.  This option allows assembler to
!      create several literal pools per function and assemble very big
!      functions, which may not be possible with
!      '-mtext-section-literals'.
  
! '-mtarget-align'
! '-mno-target-align'
       When this option is enabled, GCC instructs the assembler to
       automatically align instructions to reduce branch penalties at the
       expense of some code density.  The assembler attempts to widen
       density instructions to align branch targets and the instructions
       following call instructions.  If there are not enough preceding
       safe density instructions to align a target, no widening is
!      performed.  The default is '-mtarget-align'.  These options do not
!      affect the treatment of auto-aligned instructions like 'LOOP',
       which the assembler always aligns, either by widening density
       instructions or by inserting NOP instructions.
  
! '-mlongcalls'
! '-mno-longcalls'
       When this option is enabled, GCC instructs the assembler to
       translate direct calls to indirect calls unless it can determine
       that the target of a direct call is in the range allowed by the
       call instruction.  This translation typically occurs for calls to
       functions in other source files.  Specifically, the assembler
!      translates a direct 'CALL' instruction into an 'L32R' followed by a
!      'CALLX' instruction.  The default is '-mno-longcalls'.  This option
!      should be used in programs where the call target can potentially be
!      out of range.  This option is implemented in the assembler, not the
!      compiler, so the assembly code generated by GCC still shows direct
!      call instructions--look at the disassembled object code to see the
!      actual instructions.  Note that the assembler uses an indirect call
!      for every cross-file call, not just those that really are out of
!      range.
  
  
  File: gcc.info,  Node: zSeries Options,  Prev: Xtensa Options,  Up: Submodel Options
*************** File: gcc.info,  Node: Spec Files,  Next
*** 22523,22561 ****
  3.19 Specifying Subprocesses and the Switches to Pass to Them
  =============================================================
  
! `gcc' is a driver program.  It performs its job by invoking a sequence
  of other programs to do the work of compiling, assembling and linking.
  GCC interprets its command-line parameters and uses these to deduce
! which programs it should invoke, and which command-line options it
! ought to place on their command lines.  This behavior is controlled by
! "spec strings".  In most cases there is one spec string for each
! program that GCC can invoke, but a few programs have multiple spec
! strings to control their behavior.  The spec strings built into GCC can
! be overridden by using the `-specs=' command-line switch to specify a
! spec file.
  
   "Spec files" are plain-text files that are used to construct spec
  strings.  They consist of a sequence of directives separated by blank
  lines.  The type of directive is determined by the first non-whitespace
  character on the line, which can be one of the following:
  
! `%COMMAND'
       Issues a COMMAND to the spec file processor.  The commands that can
       appear here are:
  
!     `%include <FILE>'
            Search for FILE and insert its text at the current point in
            the specs file.
  
!     `%include_noerr <FILE>'
!           Just like `%include', but do not generate an error message if
            the include file cannot be found.
  
!     `%rename OLD_NAME NEW_NAME'
            Rename the spec string OLD_NAME to NEW_NAME.
  
! 
! `*[SPEC_NAME]:'
       This tells the compiler to create, override or delete the named
       spec string.  All lines after this directive up to the next
       directive or blank line are considered to be the text for the spec
--- 22433,22469 ----
  3.19 Specifying Subprocesses and the Switches to Pass to Them
  =============================================================
  
! 'gcc' is a driver program.  It performs its job by invoking a sequence
  of other programs to do the work of compiling, assembling and linking.
  GCC interprets its command-line parameters and uses these to deduce
! which programs it should invoke, and which command-line options it ought
! to place on their command lines.  This behavior is controlled by "spec
! strings".  In most cases there is one spec string for each program that
! GCC can invoke, but a few programs have multiple spec strings to control
! their behavior.  The spec strings built into GCC can be overridden by
! using the '-specs=' command-line switch to specify a spec file.
  
   "Spec files" are plain-text files that are used to construct spec
  strings.  They consist of a sequence of directives separated by blank
  lines.  The type of directive is determined by the first non-whitespace
  character on the line, which can be one of the following:
  
! '%COMMAND'
       Issues a COMMAND to the spec file processor.  The commands that can
       appear here are:
  
!      '%include <FILE>'
            Search for FILE and insert its text at the current point in
            the specs file.
  
!      '%include_noerr <FILE>'
!           Just like '%include', but do not generate an error message if
            the include file cannot be found.
  
!      '%rename OLD_NAME NEW_NAME'
            Rename the spec string OLD_NAME to NEW_NAME.
  
! '*[SPEC_NAME]:'
       This tells the compiler to create, override or delete the named
       spec string.  All lines after this directive up to the next
       directive or blank line are considered to be the text for the spec
*************** character on the line, which can be one
*** 22564,22574 ****
       Otherwise, if the spec does not currently exist a new spec is
       created.  If the spec does exist then its contents are overridden
       by the text of this directive, unless the first character of that
!      text is the `+' character, in which case the text is appended to
       the spec.
  
! `[SUFFIX]:'
!      Creates a new `[SUFFIX] spec' pair.  All lines after this directive
       and up to the next directive or blank line are considered to make
       up the spec string for the indicated suffix.  When the compiler
       encounters an input file with the named suffix, it processes the
--- 22472,22482 ----
       Otherwise, if the spec does not currently exist a new spec is
       created.  If the spec does exist then its contents are overridden
       by the text of this directive, unless the first character of that
!      text is the '+' character, in which case the text is appended to
       the spec.
  
! '[SUFFIX]:'
!      Creates a new '[SUFFIX] spec' pair.  All lines after this directive
       and up to the next directive or blank line are considered to make
       up the spec string for the indicated suffix.  When the compiler
       encounters an input file with the named suffix, it processes the
*************** character on the line, which can be one
*** 22578,22594 ****
            .ZZ:
            z-compile -input %i
  
!      This says that any input file whose name ends in `.ZZ' should be
!      passed to the program `z-compile', which should be invoked with the
!      command-line switch `-input' and with the result of performing the
!      `%i' substitution.  (See below.)
  
       As an alternative to providing a spec string, the text following a
       suffix directive can be one of the following:
  
!     `@LANGUAGE'
            This says that the suffix is an alias for a known LANGUAGE.
!           This is similar to using the `-x' command-line switch to GCC
            to specify a language explicitly.  For example:
  
                 .ZZ:
--- 22486,22502 ----
            .ZZ:
            z-compile -input %i
  
!      This says that any input file whose name ends in '.ZZ' should be
!      passed to the program 'z-compile', which should be invoked with the
!      command-line switch '-input' and with the result of performing the
!      '%i' substitution.  (See below.)
  
       As an alternative to providing a spec string, the text following a
       suffix directive can be one of the following:
  
!      '@LANGUAGE'
            This says that the suffix is an alias for a known LANGUAGE.
!           This is similar to using the '-x' command-line switch to GCC
            to specify a language explicitly.  For example:
  
                 .ZZ:
*************** character on the line, which can be one
*** 22596,22602 ****
  
            Says that .ZZ files are, in fact, C++ source files.
  
!     `#NAME'
            This causes an error messages saying:
  
                 NAME compiler not installed on this system.
--- 22504,22510 ----
  
            Says that .ZZ files are, in fact, C++ source files.
  
!      '#NAME'
            This causes an error messages saying:
  
                 NAME compiler not installed on this system.
*************** character on the line, which can be one
*** 22607,22613 ****
       effectively possible to override earlier entries using this
       technique.
  
- 
   GCC has the following spec strings built into it.  Spec files can
  override these strings or create their own.  Note that individual
  targets can also add their own spec strings to this list.
--- 22515,22520 ----
*************** targets can also add their own spec stri
*** 22623,22629 ****
       libgcc       Decides which GCC support library to pass to the linker
       linker       Sets the name of the linker
       predefines   Defines to be passed to the C preprocessor
!      signed_char  Defines to pass to CPP to say whether `char' is signed
                    by default
       startfile    Object files to include at the start of the link
  
--- 22530,22536 ----
       libgcc       Decides which GCC support library to pass to the linker
       linker       Sets the name of the linker
       predefines   Defines to be passed to the C preprocessor
!      signed_char  Defines to pass to CPP to say whether char is signed
                    by default
       startfile    Object files to include at the start of the link
  
*************** targets can also add their own spec stri
*** 22634,22926 ****
       *lib:
       --start-group -lgcc -lc -leval1 --end-group %(old_lib)
  
!  This example renames the spec called `lib' to `old_lib' and then
! overrides the previous definition of `lib' with a new one.  The new
  definition adds in some extra command-line options before including the
  text of the old definition.
  
   "Spec strings" are a list of command-line options to be passed to their
  corresponding program.  In addition, the spec strings can contain
! `%'-prefixed sequences to substitute variable text or to conditionally
  insert text into the command line.  Using these constructs it is
  possible to generate quite complex command lines.
  
!  Here is a table of all defined `%'-sequences for spec strings.  Note
  that spaces are not generated automatically around the results of
  expanding these sequences.  Therefore you can concatenate them together
  or combine them with constant text in a single argument.
  
! `%%'
!      Substitute one `%' into the program name or argument.
  
! `%i'
       Substitute the name of the input file being processed.
  
! `%b'
!      Substitute the basename of the input file being processed.  This
!      is the substring up to (and not including) the last period and not
       including the directory.
  
! `%B'
!      This is the same as `%b', but include the file suffix (text after
       the last period).
  
! `%d'
!      Marks the argument containing or following the `%d' as a temporary
       file name, so that that file is deleted if GCC exits successfully.
!      Unlike `%g', this contributes no text to the argument.
  
! `%gSUFFIX'
       Substitute a file name that has suffix SUFFIX and is chosen once
!      per compilation, and mark the argument in the same way as `%d'.
!      To reduce exposure to denial-of-service attacks, the file name is
!      now chosen in a way that is hard to predict even when previously
!      chosen file names are known.  For example, `%g.s ... %g.o ... %g.s'
!      might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'.  SUFFIX
!      matches the regexp `[.A-Za-z]*' or the special string `%O', which
!      is treated exactly as if `%O' had been preprocessed.  Previously,
!      `%g' was simply substituted with a file name chosen once per
!      compilation, without regard to any appended suffix (which was
!      therefore treated just like ordinary text), making such attacks
!      more likely to succeed.
  
! `%uSUFFIX'
!      Like `%g', but generates a new temporary file name each time it
       appears instead of once per compilation.
  
! `%USUFFIX'
!      Substitutes the last file name generated with `%uSUFFIX',
       generating a new one if there is no such last file name.  In the
!      absence of any `%uSUFFIX', this is just like `%gSUFFIX', except
!      they don't share the same suffix _space_, so `%g.s ... %U.s ...
       %g.s ... %U.s' involves the generation of two distinct file names,
!      one for each `%g.s' and another for each `%U.s'.  Previously, `%U'
       was simply substituted with a file name chosen for the previous
!      `%u', without regard to any appended suffix.
  
! `%jSUFFIX'
!      Substitutes the name of the `HOST_BIT_BUCKET', if any, and if it is
!      writable, and if `-save-temps' is not used; otherwise, substitute
!      the name of a temporary file, just like `%u'.  This temporary file
       is not meant for communication between processes, but rather as a
       junk disposal mechanism.
  
! `%|SUFFIX'
! `%mSUFFIX'
!      Like `%g', except if `-pipe' is in effect.  In that case `%|'
!      substitutes a single dash and `%m' substitutes nothing at all.
       These are the two most common ways to instruct a program that it
       should read from standard input or write to standard output.  If
!      you need something more elaborate you can use an `%{pipe:`X'}'
!      construct: see for example `f/lang-specs.h'.
  
! `%.SUFFIX'
       Substitutes .SUFFIX for the suffixes of a matched switch's args
!      when it is subsequently output with `%*'.  SUFFIX is terminated by
       the next space or %.
  
! `%w'
!      Marks the argument containing or following the `%w' as the
       designated output file of this compilation.  This puts the argument
!      into the sequence of arguments that `%o' substitutes.
  
! `%o'
       Substitutes the names of all the output files, with spaces
       automatically placed around them.  You should write spaces around
!      the `%o' as well or the results are undefined.  `%o' is for use in
       the specs for running the linker.  Input files whose names have no
       recognized suffix are not compiled at all, but they are included
       among the output files, so they are linked.
  
! `%O'
!      Substitutes the suffix for object files.  Note that this is
!      handled specially when it immediately follows `%g, %u, or %U',
!      because of the need for those to form complete file names.  The
!      handling is such that `%O' is treated exactly as if it had already
!      been substituted, except that `%g, %u, and %U' do not currently
!      support additional SUFFIX characters following `%O' as they do
!      following, for example, `.o'.
  
! `%p'
       Substitutes the standard macro predefinitions for the current
!      target machine.  Use this when running `cpp'.
  
! `%P'
!      Like `%p', but puts `__' before and after the name of each
!      predefined macro, except for macros that start with `__' or with
!      `_L', where L is an uppercase letter.  This is for ISO C.
  
! `%I'
!      Substitute any of `-iprefix' (made from `GCC_EXEC_PREFIX'),
!      `-isysroot' (made from `TARGET_SYSTEM_ROOT'), `-isystem' (made
!      from `COMPILER_PATH' and `-B' options) and `-imultilib' as
!      necessary.
  
! `%s'
       Current argument is the name of a library or startup file of some
       sort.  Search for that file in a standard list of directories and
       substitute the full name found.  The current working directory is
       included in the list of directories scanned.
  
! `%T'
       Current argument is the name of a linker script.  Search for that
!      file in the current list of directories to scan for libraries. If
!      the file is located insert a `--script' option into the command
       line followed by the full path name found.  If the file is not
       found then generate an error message.  Note: the current working
       directory is not searched.
  
! `%eSTR'
       Print STR as an error message.  STR is terminated by a newline.
       Use this when inconsistent options are detected.
  
! `%(NAME)'
       Substitute the contents of spec string NAME at this point.
  
! `%x{OPTION}'
!      Accumulate an option for `%X'.
  
! `%X'
!      Output the accumulated linker options specified by `-Wl' or a `%x'
       spec string.
  
! `%Y'
!      Output the accumulated assembler options specified by `-Wa'.
  
! `%Z'
!      Output the accumulated preprocessor options specified by `-Wp'.
  
! `%a'
!      Process the `asm' spec.  This is used to compute the switches to
!      be passed to the assembler.
  
! `%A'
!      Process the `asm_final' spec.  This is a spec string for passing
       switches to an assembler post-processor, if such a program is
       needed.
  
! `%l'
!      Process the `link' spec.  This is the spec for computing the
       command line passed to the linker.  Typically it makes use of the
!      `%L %G %S %D and %E' sequences.
  
! `%D'
!      Dump out a `-L' option for each directory that GCC believes might
       contain startup files.  If the target supports multilibs then the
       current multilib directory is prepended to each of these paths.
  
! `%L'
!      Process the `lib' spec.  This is a spec string for deciding which
       libraries are included on the command line to the linker.
  
! `%G'
!      Process the `libgcc' spec.  This is a spec string for deciding
       which GCC support library is included on the command line to the
       linker.
  
! `%S'
!      Process the `startfile' spec.  This is a spec for deciding which
       object files are the first ones passed to the linker.  Typically
!      this might be a file named `crt0.o'.
  
! `%E'
!      Process the `endfile' spec.  This is a spec string that specifies
       the last object files that are passed to the linker.
  
! `%C'
!      Process the `cpp' spec.  This is used to construct the arguments
!      to be passed to the C preprocessor.
  
! `%1'
!      Process the `cc1' spec.  This is used to construct the options to
!      be passed to the actual C compiler (`cc1').
  
! `%2'
!      Process the `cc1plus' spec.  This is used to construct the options
!      to be passed to the actual C++ compiler (`cc1plus').
  
! `%*'
!      Substitute the variable part of a matched option.  See below.
!      Note that each comma in the substituted string is replaced by a
!      single space.
  
! `%<`S''
!      Remove all occurrences of `-S' from the command line.  Note--this
!      command is position dependent.  `%' commands in the spec string
!      before this one see `-S', `%' commands in the spec string after
       this one do not.
  
! `%:FUNCTION(ARGS)'
       Call the named function FUNCTION, passing it ARGS.  ARGS is first
       processed as a nested spec string, then split into an argument
       vector in the usual fashion.  The function returns a string which
!      is processed as if it had appeared literally as part of the
!      current spec.
  
       The following built-in spec functions are provided:
  
!     ``getenv''
!           The `getenv' spec function takes two arguments: an environment
            variable name and a string.  If the environment variable is
            not defined, a fatal error is issued.  Otherwise, the return
            value is the value of the environment variable concatenated
!           with the string.  For example, if `TOPDIR' is defined as
!           `/path/to/top', then:
  
                 %:getenv(TOPDIR /include)
  
!           expands to `/path/to/top/include'.
  
!     ``if-exists''
!           The `if-exists' spec function takes one argument, an absolute
!           pathname to a file.  If the file exists, `if-exists' returns
            the pathname.  Here is a small example of its usage:
  
                 *startfile:
                 crt0%O%s %:if-exists(crti%O%s) crtbegin%O%s
  
!     ``if-exists-else''
!           The `if-exists-else' spec function is similar to the
!           `if-exists' spec function, except that it takes two
!           arguments.  The first argument is an absolute pathname to a
!           file.  If the file exists, `if-exists-else' returns the
!           pathname.  If it does not exist, it returns the second
!           argument.  This way, `if-exists-else' can be used to select
!           one file or another, based on the existence of the first.
!           Here is a small example of its usage:
  
                 *startfile:
                 crt0%O%s %:if-exists(crti%O%s) \
                 %:if-exists-else(crtbeginT%O%s crtbegin%O%s)
  
!     ``replace-outfile''
!           The `replace-outfile' spec function takes two arguments.  It
            looks for the first argument in the outfiles array and
!           replaces it with the second argument.  Here is a small
!           example of its usage:
  
                 %{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}
  
!     ``remove-outfile''
!           The `remove-outfile' spec function takes one argument.  It
!           looks for the first argument in the outfiles array and
!           removes it.  Here is a small example its usage:
  
                 %:remove-outfile(-lm)
  
!     ``pass-through-libs''
!           The `pass-through-libs' spec function takes any number of
!           arguments.  It finds any `-l' options and any non-options
!           ending in `.a' (which it assumes are the names of linker
!           input library archive files) and returns a result containing
!           all the found arguments each prepended by
!           `-plugin-opt=-pass-through=' and joined by spaces.  This list
!           is intended to be passed to the LTO linker plugin.
  
                 %:pass-through-libs(%G %L %G)
  
!     ``print-asm-header''
!           The `print-asm-header' function takes no arguments and simply
            prints a banner like:
  
                 Assembler options
--- 22541,22832 ----
       *lib:
       --start-group -lgcc -lc -leval1 --end-group %(old_lib)
  
!  This example renames the spec called 'lib' to 'old_lib' and then
! overrides the previous definition of 'lib' with a new one.  The new
  definition adds in some extra command-line options before including the
  text of the old definition.
  
   "Spec strings" are a list of command-line options to be passed to their
  corresponding program.  In addition, the spec strings can contain
! '%'-prefixed sequences to substitute variable text or to conditionally
  insert text into the command line.  Using these constructs it is
  possible to generate quite complex command lines.
  
!  Here is a table of all defined '%'-sequences for spec strings.  Note
  that spaces are not generated automatically around the results of
  expanding these sequences.  Therefore you can concatenate them together
  or combine them with constant text in a single argument.
  
! '%%'
!      Substitute one '%' into the program name or argument.
  
! '%i'
       Substitute the name of the input file being processed.
  
! '%b'
!      Substitute the basename of the input file being processed.  This is
!      the substring up to (and not including) the last period and not
       including the directory.
  
! '%B'
!      This is the same as '%b', but include the file suffix (text after
       the last period).
  
! '%d'
!      Marks the argument containing or following the '%d' as a temporary
       file name, so that that file is deleted if GCC exits successfully.
!      Unlike '%g', this contributes no text to the argument.
  
! '%gSUFFIX'
       Substitute a file name that has suffix SUFFIX and is chosen once
!      per compilation, and mark the argument in the same way as '%d'.  To
!      reduce exposure to denial-of-service attacks, the file name is now
!      chosen in a way that is hard to predict even when previously chosen
!      file names are known.  For example, '%g.s ... %g.o ... %g.s' might
!      turn into 'ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'.  SUFFIX matches the
!      regexp '[.A-Za-z]*' or the special string '%O', which is treated
!      exactly as if '%O' had been preprocessed.  Previously, '%g' was
!      simply substituted with a file name chosen once per compilation,
!      without regard to any appended suffix (which was therefore treated
!      just like ordinary text), making such attacks more likely to
!      succeed.
  
! '%uSUFFIX'
!      Like '%g', but generates a new temporary file name each time it
       appears instead of once per compilation.
  
! '%USUFFIX'
!      Substitutes the last file name generated with '%uSUFFIX',
       generating a new one if there is no such last file name.  In the
!      absence of any '%uSUFFIX', this is just like '%gSUFFIX', except
!      they don't share the same suffix _space_, so '%g.s ... %U.s ...
       %g.s ... %U.s' involves the generation of two distinct file names,
!      one for each '%g.s' and another for each '%U.s'.  Previously, '%U'
       was simply substituted with a file name chosen for the previous
!      '%u', without regard to any appended suffix.
  
! '%jSUFFIX'
!      Substitutes the name of the 'HOST_BIT_BUCKET', if any, and if it is
!      writable, and if '-save-temps' is not used; otherwise, substitute
!      the name of a temporary file, just like '%u'.  This temporary file
       is not meant for communication between processes, but rather as a
       junk disposal mechanism.
  
! '%|SUFFIX'
! '%mSUFFIX'
!      Like '%g', except if '-pipe' is in effect.  In that case '%|'
!      substitutes a single dash and '%m' substitutes nothing at all.
       These are the two most common ways to instruct a program that it
       should read from standard input or write to standard output.  If
!      you need something more elaborate you can use an '%{pipe:'X'}'
!      construct: see for example 'f/lang-specs.h'.
  
! '%.SUFFIX'
       Substitutes .SUFFIX for the suffixes of a matched switch's args
!      when it is subsequently output with '%*'.  SUFFIX is terminated by
       the next space or %.
  
! '%w'
!      Marks the argument containing or following the '%w' as the
       designated output file of this compilation.  This puts the argument
!      into the sequence of arguments that '%o' substitutes.
  
! '%o'
       Substitutes the names of all the output files, with spaces
       automatically placed around them.  You should write spaces around
!      the '%o' as well or the results are undefined.  '%o' is for use in
       the specs for running the linker.  Input files whose names have no
       recognized suffix are not compiled at all, but they are included
       among the output files, so they are linked.
  
! '%O'
!      Substitutes the suffix for object files.  Note that this is handled
!      specially when it immediately follows '%g, %u, or %U', because of
!      the need for those to form complete file names.  The handling is
!      such that '%O' is treated exactly as if it had already been
!      substituted, except that '%g, %u, and %U' do not currently support
!      additional SUFFIX characters following '%O' as they do following,
!      for example, '.o'.
  
! '%p'
       Substitutes the standard macro predefinitions for the current
!      target machine.  Use this when running 'cpp'.
  
! '%P'
!      Like '%p', but puts '__' before and after the name of each
!      predefined macro, except for macros that start with '__' or with
!      '_L', where L is an uppercase letter.  This is for ISO C.
  
! '%I'
!      Substitute any of '-iprefix' (made from 'GCC_EXEC_PREFIX'),
!      '-isysroot' (made from 'TARGET_SYSTEM_ROOT'), '-isystem' (made from
!      'COMPILER_PATH' and '-B' options) and '-imultilib' as necessary.
  
! '%s'
       Current argument is the name of a library or startup file of some
       sort.  Search for that file in a standard list of directories and
       substitute the full name found.  The current working directory is
       included in the list of directories scanned.
  
! '%T'
       Current argument is the name of a linker script.  Search for that
!      file in the current list of directories to scan for libraries.  If
!      the file is located insert a '--script' option into the command
       line followed by the full path name found.  If the file is not
       found then generate an error message.  Note: the current working
       directory is not searched.
  
! '%eSTR'
       Print STR as an error message.  STR is terminated by a newline.
       Use this when inconsistent options are detected.
  
! '%(NAME)'
       Substitute the contents of spec string NAME at this point.
  
! '%x{OPTION}'
!      Accumulate an option for '%X'.
  
! '%X'
!      Output the accumulated linker options specified by '-Wl' or a '%x'
       spec string.
  
! '%Y'
!      Output the accumulated assembler options specified by '-Wa'.
  
! '%Z'
!      Output the accumulated preprocessor options specified by '-Wp'.
  
! '%a'
!      Process the 'asm' spec.  This is used to compute the switches to be
!      passed to the assembler.
  
! '%A'
!      Process the 'asm_final' spec.  This is a spec string for passing
       switches to an assembler post-processor, if such a program is
       needed.
  
! '%l'
!      Process the 'link' spec.  This is the spec for computing the
       command line passed to the linker.  Typically it makes use of the
!      '%L %G %S %D and %E' sequences.
  
! '%D'
!      Dump out a '-L' option for each directory that GCC believes might
       contain startup files.  If the target supports multilibs then the
       current multilib directory is prepended to each of these paths.
  
! '%L'
!      Process the 'lib' spec.  This is a spec string for deciding which
       libraries are included on the command line to the linker.
  
! '%G'
!      Process the 'libgcc' spec.  This is a spec string for deciding
       which GCC support library is included on the command line to the
       linker.
  
! '%S'
!      Process the 'startfile' spec.  This is a spec for deciding which
       object files are the first ones passed to the linker.  Typically
!      this might be a file named 'crt0.o'.
  
! '%E'
!      Process the 'endfile' spec.  This is a spec string that specifies
       the last object files that are passed to the linker.
  
! '%C'
!      Process the 'cpp' spec.  This is used to construct the arguments to
!      be passed to the C preprocessor.
  
! '%1'
!      Process the 'cc1' spec.  This is used to construct the options to
!      be passed to the actual C compiler ('cc1').
  
! '%2'
!      Process the 'cc1plus' spec.  This is used to construct the options
!      to be passed to the actual C++ compiler ('cc1plus').
  
! '%*'
!      Substitute the variable part of a matched option.  See below.  Note
!      that each comma in the substituted string is replaced by a single
!      space.
  
! '%<S'
!      Remove all occurrences of '-S' from the command line.  Note--this
!      command is position dependent.  '%' commands in the spec string
!      before this one see '-S', '%' commands in the spec string after
       this one do not.
  
! '%:FUNCTION(ARGS)'
       Call the named function FUNCTION, passing it ARGS.  ARGS is first
       processed as a nested spec string, then split into an argument
       vector in the usual fashion.  The function returns a string which
!      is processed as if it had appeared literally as part of the current
!      spec.
  
       The following built-in spec functions are provided:
  
!      'getenv'
!           The 'getenv' spec function takes two arguments: an environment
            variable name and a string.  If the environment variable is
            not defined, a fatal error is issued.  Otherwise, the return
            value is the value of the environment variable concatenated
!           with the string.  For example, if 'TOPDIR' is defined as
!           '/path/to/top', then:
  
                 %:getenv(TOPDIR /include)
  
!           expands to '/path/to/top/include'.
  
!      'if-exists'
!           The 'if-exists' spec function takes one argument, an absolute
!           pathname to a file.  If the file exists, 'if-exists' returns
            the pathname.  Here is a small example of its usage:
  
                 *startfile:
                 crt0%O%s %:if-exists(crti%O%s) crtbegin%O%s
  
!      'if-exists-else'
!           The 'if-exists-else' spec function is similar to the
!           'if-exists' spec function, except that it takes two arguments.
!           The first argument is an absolute pathname to a file.  If the
!           file exists, 'if-exists-else' returns the pathname.  If it
!           does not exist, it returns the second argument.  This way,
!           'if-exists-else' can be used to select one file or another,
!           based on the existence of the first.  Here is a small example
!           of its usage:
  
                 *startfile:
                 crt0%O%s %:if-exists(crti%O%s) \
                 %:if-exists-else(crtbeginT%O%s crtbegin%O%s)
  
!      'replace-outfile'
!           The 'replace-outfile' spec function takes two arguments.  It
            looks for the first argument in the outfiles array and
!           replaces it with the second argument.  Here is a small example
!           of its usage:
  
                 %{fgnu-runtime:%:replace-outfile(-lobjc -lobjc-gnu)}
  
!      'remove-outfile'
!           The 'remove-outfile' spec function takes one argument.  It
!           looks for the first argument in the outfiles array and removes
!           it.  Here is a small example its usage:
  
                 %:remove-outfile(-lm)
  
!      'pass-through-libs'
!           The 'pass-through-libs' spec function takes any number of
!           arguments.  It finds any '-l' options and any non-options
!           ending in '.a' (which it assumes are the names of linker input
!           library archive files) and returns a result containing all the
!           found arguments each prepended by '-plugin-opt=-pass-through='
!           and joined by spaces.  This list is intended to be passed to
!           the LTO linker plugin.
  
                 %:pass-through-libs(%G %L %G)
  
!      'print-asm-header'
!           The 'print-asm-header' function takes no arguments and simply
            prints a banner like:
  
                 Assembler options
*************** or combine them with constant text in a
*** 22929,23005 ****
                 Use "-Wa,OPTION" to pass "OPTION" to the assembler.
  
            It is used to separate compiler options from assembler options
!           in the `--target-help' output.
  
! `%{`S'}'
!      Substitutes the `-S' switch, if that switch is given to GCC.  If
       that switch is not specified, this substitutes nothing.  Note that
       the leading dash is omitted when specifying this option, and it is
       automatically inserted if the substitution is performed.  Thus the
!      spec string `%{foo}' matches the command-line option `-foo' and
!      outputs the command-line option `-foo'.
  
! `%W{`S'}'
!      Like %{`S'} but mark last argument supplied within as a file to be
       deleted on failure.
  
! `%{`S'*}'
       Substitutes all the switches specified to GCC whose names start
!      with `-S', but which also take an argument.  This is used for
!      switches like `-o', `-D', `-I', etc.  GCC considers `-o foo' as
!      being one switch whose name starts with `o'.  %{o*} substitutes
       this text, including the space.  Thus two arguments are generated.
  
! `%{`S'*&`T'*}'
!      Like %{`S'*}, but preserve order of `S' and `T' options (the order
!      of `S' and `T' in the spec is not significant).  There can be any
       number of ampersand-separated variables; for each the wild card is
!      optional.  Useful for CPP as `%{D*&U*&A*}'.
  
! `%{`S':`X'}'
!      Substitutes `X', if the `-S' switch is given to GCC.
  
! `%{!`S':`X'}'
!      Substitutes `X', if the `-S' switch is _not_ given to GCC.
  
! `%{`S'*:`X'}'
!      Substitutes `X' if one or more switches whose names start with
!      `-S' are specified to GCC.  Normally `X' is substituted only once,
!      no matter how many such switches appeared.  However, if `%*'
!      appears somewhere in `X', then `X' is substituted once for each
!      matching switch, with the `%*' replaced by the part of that switch
!      matching the `*'.
  
!      If `%*' appears as the last part of a spec sequence then a space
!      is added after the end of the last substitution.  If there is more
       text in the sequence, however, then a space is not generated.  This
!      allows the `%*' substitution to be used as part of a larger
!      string.  For example, a spec string like this:
  
            %{mcu=*:--script=%*/memory.ld}
  
!      when matching an option like `-mcu=newchip' produces:
  
            --script=newchip/memory.ld
  
! `%{.`S':`X'}'
!      Substitutes `X', if processing a file with suffix `S'.
  
! `%{!.`S':`X'}'
!      Substitutes `X', if _not_ processing a file with suffix `S'.
  
! `%{,`S':`X'}'
!      Substitutes `X', if processing a file for language `S'.
  
! `%{!,`S':`X'}'
!      Substitutes `X', if not processing a file for language `S'.
  
! `%{`S'|`P':`X'}'
!      Substitutes `X' if either `-S' or `-P' is given to GCC.  This may
!      be combined with `!', `.', `,', and `*' sequences as well,
!      although they have a stronger binding than the `|'.  If `%*'
!      appears in `X', all of the alternatives must be starred, and only
!      the first matching alternative is substituted.
  
       For example, a spec string like this:
  
--- 22835,22911 ----
                 Use "-Wa,OPTION" to pass "OPTION" to the assembler.
  
            It is used to separate compiler options from assembler options
!           in the '--target-help' output.
  
! '%{S}'
!      Substitutes the '-S' switch, if that switch is given to GCC.  If
       that switch is not specified, this substitutes nothing.  Note that
       the leading dash is omitted when specifying this option, and it is
       automatically inserted if the substitution is performed.  Thus the
!      spec string '%{foo}' matches the command-line option '-foo' and
!      outputs the command-line option '-foo'.
  
! '%W{S}'
!      Like %{'S'} but mark last argument supplied within as a file to be
       deleted on failure.
  
! '%{S*}'
       Substitutes all the switches specified to GCC whose names start
!      with '-S', but which also take an argument.  This is used for
!      switches like '-o', '-D', '-I', etc.  GCC considers '-o foo' as
!      being one switch whose name starts with 'o'.  %{o*} substitutes
       this text, including the space.  Thus two arguments are generated.
  
! '%{S*&T*}'
!      Like %{'S'*}, but preserve order of 'S' and 'T' options (the order
!      of 'S' and 'T' in the spec is not significant).  There can be any
       number of ampersand-separated variables; for each the wild card is
!      optional.  Useful for CPP as '%{D*&U*&A*}'.
  
! '%{S:X}'
!      Substitutes 'X', if the '-S' switch is given to GCC.
  
! '%{!S:X}'
!      Substitutes 'X', if the '-S' switch is _not_ given to GCC.
  
! '%{S*:X}'
!      Substitutes 'X' if one or more switches whose names start with '-S'
!      are specified to GCC.  Normally 'X' is substituted only once, no
!      matter how many such switches appeared.  However, if '%*' appears
!      somewhere in 'X', then 'X' is substituted once for each matching
!      switch, with the '%*' replaced by the part of that switch matching
!      the '*'.
  
!      If '%*' appears as the last part of a spec sequence then a space is
!      added after the end of the last substitution.  If there is more
       text in the sequence, however, then a space is not generated.  This
!      allows the '%*' substitution to be used as part of a larger string.
!      For example, a spec string like this:
  
            %{mcu=*:--script=%*/memory.ld}
  
!      when matching an option like '-mcu=newchip' produces:
  
            --script=newchip/memory.ld
  
! '%{.S:X}'
!      Substitutes 'X', if processing a file with suffix 'S'.
  
! '%{!.S:X}'
!      Substitutes 'X', if _not_ processing a file with suffix 'S'.
  
! '%{,S:X}'
!      Substitutes 'X', if processing a file for language 'S'.
  
! '%{!,S:X}'
!      Substitutes 'X', if not processing a file for language 'S'.
  
! '%{S|P:X}'
!      Substitutes 'X' if either '-S' or '-P' is given to GCC.  This may
!      be combined with '!', '.', ',', and '*' sequences as well, although
!      they have a stronger binding than the '|'.  If '%*' appears in 'X',
!      all of the alternatives must be starred, and only the first
!      matching alternative is substituted.
  
       For example, a spec string like this:
  
*************** or combine them with constant text in a
*** 23013,23041 ****
            -d fred.c     -foo -baz -boggle
            -d jim.d      -bar -baz -boggle
  
! `%{S:X; T:Y; :D}'
!      If `S' is given to GCC, substitutes `X'; else if `T' is given to
!      GCC, substitutes `Y'; else substitutes `D'.  There can be as many
!      clauses as you need.  This may be combined with `.', `,', `!',
!      `|', and `*' as needed.
  
  
!  The conditional text `X' in a %{`S':`X'} or similar construct may
! contain other nested `%' constructs or spaces, or even newlines.  They
! are processed as usual, as described above.  Trailing white space in
! `X' is ignored.  White space may also appear anywhere on the left side
! of the colon in these constructs, except between `.' or `*' and the
  corresponding word.
  
!  The `-O', `-f', `-m', and `-W' switches are handled specifically in
! these constructs.  If another value of `-O' or the negated form of a
! `-f', `-m', or `-W' switch is found later in the command line, the
! earlier switch value is ignored, except with {`S'*} where `S' is just
  one letter, which passes all matching options.
  
!  The character `|' at the beginning of the predicate text is used to
  indicate that a command should be piped to the following command, but
! only if `-pipe' is specified.
  
   It is built into GCC which switches take arguments and which do not.
  (You might think it would be useful to generalize this to allow each
--- 22919,22947 ----
            -d fred.c     -foo -baz -boggle
            -d jim.d      -bar -baz -boggle
  
! '%{S:X; T:Y; :D}'
  
+      If 'S' is given to GCC, substitutes 'X'; else if 'T' is given to
+      GCC, substitutes 'Y'; else substitutes 'D'.  There can be as many
+      clauses as you need.  This may be combined with '.', ',', '!', '|',
+      and '*' as needed.
  
!  The conditional text 'X' in a %{'S':'X'} or similar construct may
! contain other nested '%' constructs or spaces, or even newlines.  They
! are processed as usual, as described above.  Trailing white space in 'X'
! is ignored.  White space may also appear anywhere on the left side of
! the colon in these constructs, except between '.' or '*' and the
  corresponding word.
  
!  The '-O', '-f', '-m', and '-W' switches are handled specifically in
! these constructs.  If another value of '-O' or the negated form of a
! '-f', '-m', or '-W' switch is found later in the command line, the
! earlier switch value is ignored, except with {'S'*} where 'S' is just
  one letter, which passes all matching options.
  
!  The character '|' at the beginning of the predicate text is used to
  indicate that a command should be piped to the following command, but
! only if '-pipe' is specified.
  
   It is built into GCC which switches take arguments and which do not.
  (You might think it would be useful to generalize this to allow each
*************** files have been specified without knowin
*** 23045,23051 ****
  and it must know which input files to compile in order to tell which
  compilers to run).
  
!  GCC also knows implicitly that arguments starting in `-l' are to be
  treated as compiler output files, and passed to the linker in their
  proper position among the other output files.
  
--- 22951,22957 ----
  and it must know which input files to compile in order to tell which
  compilers to run).
  
!  GCC also knows implicitly that arguments starting in '-l' are to be
  treated as compiler output files, and passed to the linker in their
  proper position among the other output files.
  
*************** File: gcc.info,  Node: Environment Varia
*** 23057,23231 ****
  
  This section describes several environment variables that affect how GCC
  operates.  Some of them work by specifying directories or prefixes to
! use when searching for various kinds of files.  Some are used to
! specify other aspects of the compilation environment.
  
   Note that you can also specify places to search using options such as
! `-B', `-I' and `-L' (*note Directory Options::).  These take precedence
  over places specified using environment variables, which in turn take
  precedence over those specified by the configuration of GCC.  *Note
! Controlling the Compilation Driver `gcc': (gccint)Driver.
  
! `LANG'
! `LC_CTYPE'
! `LC_MESSAGES'
! `LC_ALL'
       These environment variables control the way that GCC uses
       localization information which allows GCC to work with different
       national conventions.  GCC inspects the locale categories
!      `LC_CTYPE' and `LC_MESSAGES' if it has been configured to do so.
       These locale categories can be set to any value supported by your
!      installation.  A typical value is `en_GB.UTF-8' for English in the
       United Kingdom encoded in UTF-8.
  
!      The `LC_CTYPE' environment variable specifies character
       classification.  GCC uses it to determine the character boundaries
       in a string; this is needed for some multibyte encodings that
       contain quote and escape characters that are otherwise interpreted
       as a string end or escape.
  
!      The `LC_MESSAGES' environment variable specifies the language to
       use in diagnostic messages.
  
!      If the `LC_ALL' environment variable is set, it overrides the value
!      of `LC_CTYPE' and `LC_MESSAGES'; otherwise, `LC_CTYPE' and
!      `LC_MESSAGES' default to the value of the `LANG' environment
       variable.  If none of these variables are set, GCC defaults to
       traditional C English behavior.
  
! `TMPDIR'
!      If `TMPDIR' is set, it specifies the directory to use for temporary
       files.  GCC uses temporary files to hold the output of one stage of
       compilation which is to be used as input to the next stage: for
       example, the output of the preprocessor, which is the input to the
       compiler proper.
  
! `GCC_COMPARE_DEBUG'
!      Setting `GCC_COMPARE_DEBUG' is nearly equivalent to passing
!      `-fcompare-debug' to the compiler driver.  See the documentation
!      of this option for more details.
  
! `GCC_EXEC_PREFIX'
!      If `GCC_EXEC_PREFIX' is set, it specifies a prefix to use in the
       names of the subprograms executed by the compiler.  No slash is
       added when this prefix is combined with the name of a subprogram,
       but you can specify a prefix that ends with a slash if you wish.
  
!      If `GCC_EXEC_PREFIX' is not set, GCC attempts to figure out an
       appropriate prefix to use based on the pathname it is invoked with.
  
       If GCC cannot find the subprogram using the specified prefix, it
       tries looking in the usual places for the subprogram.
  
!      The default value of `GCC_EXEC_PREFIX' is `PREFIX/lib/gcc/' where
!      PREFIX is the prefix to the installed compiler. In many cases
!      PREFIX is the value of `prefix' when you ran the `configure'
       script.
  
!      Other prefixes specified with `-B' take precedence over this
       prefix.
  
!      This prefix is also used for finding files such as `crt0.o' that
       are used for linking.
  
       In addition, the prefix is used in an unusual way in finding the
       directories to search for header files.  For each of the standard
!      directories whose name normally begins with `/usr/local/lib/gcc'
!      (more precisely, with the value of `GCC_INCLUDE_DIR'), GCC tries
       replacing that beginning with the specified prefix to produce an
!      alternate directory name.  Thus, with `-Bfoo/', GCC searches
!      `foo/bar' just before it searches the standard directory
!      `/usr/local/lib/bar'.  If a standard directory begins with the
       configured PREFIX then the value of PREFIX is replaced by
!      `GCC_EXEC_PREFIX' when looking for header files.
  
! `COMPILER_PATH'
!      The value of `COMPILER_PATH' is a colon-separated list of
!      directories, much like `PATH'.  GCC tries the directories thus
       specified when searching for subprograms, if it can't find the
!      subprograms using `GCC_EXEC_PREFIX'.
  
! `LIBRARY_PATH'
!      The value of `LIBRARY_PATH' is a colon-separated list of
!      directories, much like `PATH'.  When configured as a native
       compiler, GCC tries the directories thus specified when searching
       for special linker files, if it can't find them using
!      `GCC_EXEC_PREFIX'.  Linking using GCC also uses these directories
!      when searching for ordinary libraries for the `-l' option (but
!      directories specified with `-L' come first).
  
! `LANG'
       This variable is used to pass locale information to the compiler.
       One way in which this information is used is to determine the
       character set to be used when character literals, string literals
       and comments are parsed in C and C++.  When the compiler is
       configured to allow multibyte characters, the following values for
!      `LANG' are recognized:
  
!     `C-JIS'
            Recognize JIS characters.
! 
!     `C-SJIS'
            Recognize SJIS characters.
! 
!     `C-EUCJP'
            Recognize EUCJP characters.
  
!      If `LANG' is not defined, or if it has some other value, then the
!      compiler uses `mblen' and `mbtowc' as defined by the default
!      locale to recognize and translate multibyte characters.
  
  Some additional environment variables affect the behavior of the
  preprocessor.
  
! `CPATH'
! `C_INCLUDE_PATH'
! `CPLUS_INCLUDE_PATH'
! `OBJC_INCLUDE_PATH'
       Each variable's value is a list of directories separated by a
!      special character, much like `PATH', in which to look for header
!      files.  The special character, `PATH_SEPARATOR', is
       target-dependent and determined at GCC build time.  For Microsoft
       Windows-based targets it is a semicolon, and for almost all other
       targets it is a colon.
  
!      `CPATH' specifies a list of directories to be searched as if
!      specified with `-I', but after any paths given with `-I' options
!      on the command line.  This environment variable is used regardless
!      of which language is being preprocessed.
  
       The remaining environment variables apply only when preprocessing
       the particular language indicated.  Each specifies a list of
!      directories to be searched as if specified with `-isystem', but
!      after any paths given with `-isystem' options on the command line.
  
       In all these variables, an empty element instructs the compiler to
!      search its current working directory.  Empty elements can appear
!      at the beginning or end of a path.  For instance, if the value of
!      `CPATH' is `:/special/include', that has the same effect as
!      `-I. -I/special/include'.
  
! `DEPENDENCIES_OUTPUT'
       If this variable is set, its value specifies how to output
       dependencies for Make based on the non-system header files
       processed by the compiler.  System header files are ignored in the
       dependency output.
  
!      The value of `DEPENDENCIES_OUTPUT' can be just a file name, in
       which case the Make rules are written to that file, guessing the
       target name from the source file name.  Or the value can have the
!      form `FILE TARGET', in which case the rules are written to file
       FILE using TARGET as the target name.
  
       In other words, this environment variable is equivalent to
!      combining the options `-MM' and `-MF' (*note Preprocessor
!      Options::), with an optional `-MT' switch too.
  
! `SUNPRO_DEPENDENCIES'
!      This variable is the same as `DEPENDENCIES_OUTPUT' (see above),
!      except that system header files are not ignored, so it implies
!      `-M' rather than `-MM'.  However, the dependence on the main input
!      file is omitted.  *Note Preprocessor Options::.
  
  
  File: gcc.info,  Node: Precompiled Headers,  Prev: Environment Variables,  Up: Invoking GCC
--- 22963,23135 ----
  
  This section describes several environment variables that affect how GCC
  operates.  Some of them work by specifying directories or prefixes to
! use when searching for various kinds of files.  Some are used to specify
! other aspects of the compilation environment.
  
   Note that you can also specify places to search using options such as
! '-B', '-I' and '-L' (*note Directory Options::).  These take precedence
  over places specified using environment variables, which in turn take
  precedence over those specified by the configuration of GCC.  *Note
! Controlling the Compilation Driver 'gcc': (gccint)Driver.
  
! 'LANG'
! 'LC_CTYPE'
! 'LC_MESSAGES'
! 'LC_ALL'
       These environment variables control the way that GCC uses
       localization information which allows GCC to work with different
       national conventions.  GCC inspects the locale categories
!      'LC_CTYPE' and 'LC_MESSAGES' if it has been configured to do so.
       These locale categories can be set to any value supported by your
!      installation.  A typical value is 'en_GB.UTF-8' for English in the
       United Kingdom encoded in UTF-8.
  
!      The 'LC_CTYPE' environment variable specifies character
       classification.  GCC uses it to determine the character boundaries
       in a string; this is needed for some multibyte encodings that
       contain quote and escape characters that are otherwise interpreted
       as a string end or escape.
  
!      The 'LC_MESSAGES' environment variable specifies the language to
       use in diagnostic messages.
  
!      If the 'LC_ALL' environment variable is set, it overrides the value
!      of 'LC_CTYPE' and 'LC_MESSAGES'; otherwise, 'LC_CTYPE' and
!      'LC_MESSAGES' default to the value of the 'LANG' environment
       variable.  If none of these variables are set, GCC defaults to
       traditional C English behavior.
  
! 'TMPDIR'
!      If 'TMPDIR' is set, it specifies the directory to use for temporary
       files.  GCC uses temporary files to hold the output of one stage of
       compilation which is to be used as input to the next stage: for
       example, the output of the preprocessor, which is the input to the
       compiler proper.
  
! 'GCC_COMPARE_DEBUG'
!      Setting 'GCC_COMPARE_DEBUG' is nearly equivalent to passing
!      '-fcompare-debug' to the compiler driver.  See the documentation of
!      this option for more details.
  
! 'GCC_EXEC_PREFIX'
!      If 'GCC_EXEC_PREFIX' is set, it specifies a prefix to use in the
       names of the subprograms executed by the compiler.  No slash is
       added when this prefix is combined with the name of a subprogram,
       but you can specify a prefix that ends with a slash if you wish.
  
!      If 'GCC_EXEC_PREFIX' is not set, GCC attempts to figure out an
       appropriate prefix to use based on the pathname it is invoked with.
  
       If GCC cannot find the subprogram using the specified prefix, it
       tries looking in the usual places for the subprogram.
  
!      The default value of 'GCC_EXEC_PREFIX' is 'PREFIX/lib/gcc/' where
!      PREFIX is the prefix to the installed compiler.  In many cases
!      PREFIX is the value of 'prefix' when you ran the 'configure'
       script.
  
!      Other prefixes specified with '-B' take precedence over this
       prefix.
  
!      This prefix is also used for finding files such as 'crt0.o' that
       are used for linking.
  
       In addition, the prefix is used in an unusual way in finding the
       directories to search for header files.  For each of the standard
!      directories whose name normally begins with '/usr/local/lib/gcc'
!      (more precisely, with the value of 'GCC_INCLUDE_DIR'), GCC tries
       replacing that beginning with the specified prefix to produce an
!      alternate directory name.  Thus, with '-Bfoo/', GCC searches
!      'foo/bar' just before it searches the standard directory
!      '/usr/local/lib/bar'.  If a standard directory begins with the
       configured PREFIX then the value of PREFIX is replaced by
!      'GCC_EXEC_PREFIX' when looking for header files.
  
! 'COMPILER_PATH'
!      The value of 'COMPILER_PATH' is a colon-separated list of
!      directories, much like 'PATH'.  GCC tries the directories thus
       specified when searching for subprograms, if it can't find the
!      subprograms using 'GCC_EXEC_PREFIX'.
  
! 'LIBRARY_PATH'
!      The value of 'LIBRARY_PATH' is a colon-separated list of
!      directories, much like 'PATH'.  When configured as a native
       compiler, GCC tries the directories thus specified when searching
       for special linker files, if it can't find them using
!      'GCC_EXEC_PREFIX'.  Linking using GCC also uses these directories
!      when searching for ordinary libraries for the '-l' option (but
!      directories specified with '-L' come first).
  
! 'LANG'
       This variable is used to pass locale information to the compiler.
       One way in which this information is used is to determine the
       character set to be used when character literals, string literals
       and comments are parsed in C and C++.  When the compiler is
       configured to allow multibyte characters, the following values for
!      'LANG' are recognized:
  
!      'C-JIS'
            Recognize JIS characters.
!      'C-SJIS'
            Recognize SJIS characters.
!      'C-EUCJP'
            Recognize EUCJP characters.
  
!      If 'LANG' is not defined, or if it has some other value, then the
!      compiler uses 'mblen' and 'mbtowc' as defined by the default locale
!      to recognize and translate multibyte characters.
  
  Some additional environment variables affect the behavior of the
  preprocessor.
  
! 'CPATH'
! 'C_INCLUDE_PATH'
! 'CPLUS_INCLUDE_PATH'
! 'OBJC_INCLUDE_PATH'
       Each variable's value is a list of directories separated by a
!      special character, much like 'PATH', in which to look for header
!      files.  The special character, 'PATH_SEPARATOR', is
       target-dependent and determined at GCC build time.  For Microsoft
       Windows-based targets it is a semicolon, and for almost all other
       targets it is a colon.
  
!      'CPATH' specifies a list of directories to be searched as if
!      specified with '-I', but after any paths given with '-I' options on
!      the command line.  This environment variable is used regardless of
!      which language is being preprocessed.
  
       The remaining environment variables apply only when preprocessing
       the particular language indicated.  Each specifies a list of
!      directories to be searched as if specified with '-isystem', but
!      after any paths given with '-isystem' options on the command line.
  
       In all these variables, an empty element instructs the compiler to
!      search its current working directory.  Empty elements can appear at
!      the beginning or end of a path.  For instance, if the value of
!      'CPATH' is ':/special/include', that has the same effect as
!      '-I. -I/special/include'.
  
! 'DEPENDENCIES_OUTPUT'
       If this variable is set, its value specifies how to output
       dependencies for Make based on the non-system header files
       processed by the compiler.  System header files are ignored in the
       dependency output.
  
!      The value of 'DEPENDENCIES_OUTPUT' can be just a file name, in
       which case the Make rules are written to that file, guessing the
       target name from the source file name.  Or the value can have the
!      form 'FILE TARGET', in which case the rules are written to file
       FILE using TARGET as the target name.
  
       In other words, this environment variable is equivalent to
!      combining the options '-MM' and '-MF' (*note Preprocessor
!      Options::), with an optional '-MT' switch too.
  
! 'SUNPRO_DEPENDENCIES'
!      This variable is the same as 'DEPENDENCIES_OUTPUT' (see above),
!      except that system header files are not ignored, so it implies '-M'
!      rather than '-MM'.  However, the dependence on the main input file
!      is omitted.  *Note Preprocessor Options::.
  
  
  File: gcc.info,  Node: Precompiled Headers,  Prev: Environment Variables,  Up: Invoking GCC
*************** build the project.  To make builds faste
*** 23240,23285 ****
  "precompile" a header file.
  
   To create a precompiled header file, simply compile it as you would any
! other file, if necessary using the `-x' option to make the driver treat
! it as a C or C++ header file.  You may want to use a tool like `make'
! to keep the precompiled header up-to-date when the headers it contains
  change.
  
!  A precompiled header file is searched for when `#include' is seen in
  the compilation.  As it searches for the included file (*note Search
  Path: (cpp)Search Path.) the compiler looks for a precompiled header in
  each directory just before it looks for the include file in that
  directory.  The name searched for is the name specified in the
! `#include' with `.gch' appended.  If the precompiled header file can't
  be used, it is ignored.
  
!  For instance, if you have `#include "all.h"', and you have `all.h.gch'
! in the same directory as `all.h', then the precompiled header file is
  used if possible, and the original header is used otherwise.
  
   Alternatively, you might decide to put the precompiled header file in a
! directory and use `-I' to ensure that directory is searched before (or
  instead of) the directory containing the original header.  Then, if you
  want to check that the precompiled header file is always used, you can
  put a file of the same name as the original header in this directory
! containing an `#error' command.
  
!  This also works with `-include'.  So yet another way to use
! precompiled headers, good for projects not designed with precompiled
! header files in mind, is to simply take most of the header files used by
! a project, include them from another header file, precompile that header
! file, and `-include' the precompiled header.  If the header files have
! guards against multiple inclusion, they are skipped because they've
! already been included (in the precompiled header).
  
!  If you need to precompile the same header file for different
! languages, targets, or compiler options, you can instead make a
! _directory_ named like `all.h.gch', and put each precompiled header in
! the directory, perhaps using `-o'.  It doesn't matter what you call the
! files in the directory; every precompiled header in the directory is
! considered.  The first precompiled header encountered in the directory
! that is valid for this compilation is used; they're searched in no
! particular order.
  
   There are many other possibilities, limited only by your imagination,
  good sense, and the constraints of your build system.
--- 23144,23188 ----
  "precompile" a header file.
  
   To create a precompiled header file, simply compile it as you would any
! other file, if necessary using the '-x' option to make the driver treat
! it as a C or C++ header file.  You may want to use a tool like 'make' to
! keep the precompiled header up-to-date when the headers it contains
  change.
  
!  A precompiled header file is searched for when '#include' is seen in
  the compilation.  As it searches for the included file (*note Search
  Path: (cpp)Search Path.) the compiler looks for a precompiled header in
  each directory just before it looks for the include file in that
  directory.  The name searched for is the name specified in the
! '#include' with '.gch' appended.  If the precompiled header file can't
  be used, it is ignored.
  
!  For instance, if you have '#include "all.h"', and you have 'all.h.gch'
! in the same directory as 'all.h', then the precompiled header file is
  used if possible, and the original header is used otherwise.
  
   Alternatively, you might decide to put the precompiled header file in a
! directory and use '-I' to ensure that directory is searched before (or
  instead of) the directory containing the original header.  Then, if you
  want to check that the precompiled header file is always used, you can
  put a file of the same name as the original header in this directory
! containing an '#error' command.
  
!  This also works with '-include'.  So yet another way to use precompiled
! headers, good for projects not designed with precompiled header files in
! mind, is to simply take most of the header files used by a project,
! include them from another header file, precompile that header file, and
! '-include' the precompiled header.  If the header files have guards
! against multiple inclusion, they are skipped because they've already
! been included (in the precompiled header).
  
!  If you need to precompile the same header file for different languages,
! targets, or compiler options, you can instead make a _directory_ named
! like 'all.h.gch', and put each precompiled header in the directory,
! perhaps using '-o'.  It doesn't matter what you call the files in the
! directory; every precompiled header in the directory is considered.  The
! first precompiled header encountered in the directory that is valid for
! this compilation is used; they're searched in no particular order.
  
   There are many other possibilities, limited only by your imagination,
  good sense, and the constraints of your build system.
*************** good sense, and the constraints of your
*** 23306,23324 ****
       usually means that they don't appear in the precompiled header at
       all.
  
!      The `-D' option is one way to define a macro before a precompiled
!      header is included; using a `#define' can also do it.  There are
!      also some options that define macros implicitly, like `-O' and
!      `-Wdeprecated'; the same rule applies to macros defined this way.
  
     * If debugging information is output when using the precompiled
!      header, using `-g' or similar, the same kind of debugging
       information must have been output when building the precompiled
!      header.  However, a precompiled header built using `-g' can be
!      used in a compilation when no debugging information is being
!      output.
  
!    * The same `-m' options must generally be used when building and
       using the precompiled header.  *Note Submodel Options::, for any
       cases where this rule is relaxed.
  
--- 23209,23226 ----
       usually means that they don't appear in the precompiled header at
       all.
  
!      The '-D' option is one way to define a macro before a precompiled
!      header is included; using a '#define' can also do it.  There are
!      also some options that define macros implicitly, like '-O' and
!      '-Wdeprecated'; the same rule applies to macros defined this way.
  
     * If debugging information is output when using the precompiled
!      header, using '-g' or similar, the same kind of debugging
       information must have been output when building the precompiled
!      header.  However, a precompiled header built using '-g' can be used
!      in a compilation when no debugging information is being output.
  
!    * The same '-m' options must generally be used when building and
       using the precompiled header.  *Note Submodel Options::, for any
       cases where this rule is relaxed.
  
*************** good sense, and the constraints of your
*** 23327,23345 ****
  
            -fexceptions
  
!    * Some other command-line options starting with `-f', `-p', or `-O'
       must be defined in the same way as when the precompiled header was
       generated.  At present, it's not clear which options are safe to
       change and which are not; the safest choice is to use exactly the
!      same options when generating and using the precompiled header.
!      The following are known to be safe:
  
            -fmessage-length=  -fpreprocessed  -fsched-interblock
            -fsched-spec  -fsched-spec-load  -fsched-spec-load-dangerous
            -fsched-verbose=NUMBER  -fschedule-insns  -fvisibility=
            -pedantic-errors
  
- 
   For all of these except the last, the compiler automatically ignores
  the precompiled header if the conditions aren't met.  If you find an
  option combination that doesn't work and doesn't cause the precompiled
--- 23229,23246 ----
  
            -fexceptions
  
!    * Some other command-line options starting with '-f', '-p', or '-O'
       must be defined in the same way as when the precompiled header was
       generated.  At present, it's not clear which options are safe to
       change and which are not; the safest choice is to use exactly the
!      same options when generating and using the precompiled header.  The
!      following are known to be safe:
  
            -fmessage-length=  -fpreprocessed  -fsched-interblock
            -fsched-spec  -fsched-spec-load  -fsched-spec-load-dangerous
            -fsched-verbose=NUMBER  -fschedule-insns  -fvisibility=
            -pedantic-errors
  
   For all of these except the last, the compiler automatically ignores
  the precompiled header if the conditions aren't met.  If you find an
  option combination that doesn't work and doesn't cause the precompiled
*************** header to be ignored, please consider fi
*** 23347,23356 ****
  Bugs::.
  
   If you do use differing options when generating and using the
! precompiled header, the actual behavior is a mixture of the behavior
! for the options.  For instance, if you use `-g' to generate the
! precompiled header but not when using it, you may or may not get
! debugging information for routines in the precompiled header.
  
  
  File: gcc.info,  Node: C Implementation,  Next: C++ Implementation,  Prev: Invoking GCC,  Up: Top
--- 23248,23257 ----
  Bugs::.
  
   If you do use differing options when generating and using the
! precompiled header, the actual behavior is a mixture of the behavior for
! the options.  For instance, if you use '-g' to generate the precompiled
! header but not when using it, you may or may not get debugging
! information for routines in the precompiled header.
  
  
  File: gcc.info,  Node: C Implementation,  Next: C++ Implementation,  Prev: Invoking GCC,  Up: Top
*************** version of the standard.
*** 23368,23379 ****
   Some choices depend on the externally determined ABI for the platform
  (including standard character encodings) which GCC follows; these are
  listed as "determined by ABI" below.  *Note Binary Compatibility:
! Compatibility, and `http://gcc.gnu.org/readings.html'.  Some choices
! are documented in the preprocessor manual.  *Note
! Implementation-defined behavior: (cpp)Implementation-defined behavior.
! Some choices are made by the library and operating system (or other
! environment when compiling for a freestanding environment); refer to
! their documentation for details.
  
  * Menu:
  
--- 23269,23280 ----
   Some choices depend on the externally determined ABI for the platform
  (including standard character encodings) which GCC follows; these are
  listed as "determined by ABI" below.  *Note Binary Compatibility:
! Compatibility, and <http://gcc.gnu.org/readings.html>.  Some choices are
! documented in the preprocessor manual.  *Note Implementation-defined
! behavior: (cpp)Implementation-defined behavior.  Some choices are made
! by the library and operating system (or other environment when compiling
! for a freestanding environment); refer to their documentation for
! details.
  
  * Menu:
  
*************** File: gcc.info,  Node: Translation imple
*** 23400,23418 ****
  4.1 Translation
  ===============
  
!    * `How a diagnostic is identified (C90 3.7, C99 and C11 3.10, C90,
       C99 and C11 5.1.1.3).'
  
       Diagnostics consist of all the output sent to stderr by GCC.
  
!    * `Whether each nonempty sequence of white-space characters other
       than new-line is retained or replaced by one space character in
       translation phase 3 (C90, C99 and C11 5.1.1.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
- 
  
  File: gcc.info,  Node: Environment implementation,  Next: Identifiers implementation,  Prev: Translation implementation,  Up: C Implementation
  
--- 23301,23318 ----
  4.1 Translation
  ===============
  
!    * 'How a diagnostic is identified (C90 3.7, C99 and C11 3.10, C90,
       C99 and C11 5.1.1.3).'
  
       Diagnostics consist of all the output sent to stderr by GCC.
  
!    * 'Whether each nonempty sequence of white-space characters other
       than new-line is retained or replaced by one space character in
       translation phase 3 (C90, C99 and C11 5.1.1.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
  
  File: gcc.info,  Node: Environment implementation,  Next: Identifiers implementation,  Prev: Translation implementation,  Up: C Implementation
  
*************** File: gcc.info,  Node: Environment imple
*** 23422,23559 ****
  The behavior of most of these points are dependent on the implementation
  of the C library, and are not defined by GCC itself.
  
!    * `The mapping between physical source file multibyte characters and
       the source character set in translation phase 1 (C90, C99 and C11
       5.1.1.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
- 
  
  File: gcc.info,  Node: Identifiers implementation,  Next: Characters implementation,  Prev: Environment implementation,  Up: C Implementation
  
  4.3 Identifiers
  ===============
  
!    * `Which additional multibyte characters may appear in identifiers
       and their correspondence to universal character names (C99 and C11
       6.4.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * `The number of significant initial characters in an identifier
!      (C90 6.1.2, C90, C99 and C11 5.2.4.1, C99 and C11 6.4.2).'
  
       For internal names, all characters are significant.  For external
       names, the number of significant characters are defined by the
       linker; for almost all targets, all characters are significant.
  
!    * `Whether case distinctions are significant in an identifier with
       external linkage (C90 6.1.2).'
  
       This is a property of the linker.  C99 and C11 require that case
       distinctions are always significant in identifiers with external
       linkage and systems without this property are not supported by GCC.
  
- 
  
  File: gcc.info,  Node: Characters implementation,  Next: Integers implementation,  Prev: Identifiers implementation,  Up: C Implementation
  
  4.4 Characters
  ==============
  
!    * `The number of bits in a byte (C90 3.4, C99 and C11 3.6).'
  
       Determined by ABI.
  
!    * `The values of the members of the execution character set (C90,
!      C99 and C11 5.2.1).'
  
       Determined by ABI.
  
!    * `The unique value of the member of the execution character set
!      produced for each of the standard alphabetic escape sequences
!      (C90, C99 and C11 5.2.2).'
  
       Determined by ABI.
  
!    * `The value of a `char' object into which has been stored any
       character other than a member of the basic execution character set
       (C90 6.1.2.5, C99 and C11 6.2.5).'
  
       Determined by ABI.
  
!    * `Which of `signed char' or `unsigned char' has the same range,
!      representation, and behavior as "plain" `char' (C90 6.1.2.5, C90
       6.2.1.1, C99 and C11 6.2.5, C99 and C11 6.3.1.1).'
  
!      Determined by ABI.  The options `-funsigned-char' and
!      `-fsigned-char' change the default.  *Note Options Controlling C
       Dialect: C Dialect Options.
  
!    * `The mapping of members of the source character set (in character
       constants and string literals) to members of the execution
       character set (C90 6.1.3.4, C99 and C11 6.4.4.4, C90, C99 and C11
       5.1.1.2).'
  
       Determined by ABI.
  
!    * `The value of an integer character constant containing more than
       one character or containing a character or escape sequence that
!      does not map to a single-byte execution character (C90 6.1.3.4,
!      C99 and C11 6.4.4.4).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * `The value of a wide character constant containing more than one
       multibyte character or a single multibyte character that maps to
       multiple members of the extended execution character set, or
!      containing a multibyte character or escape sequence not
!      represented in the extended execution character set (C90 6.1.3.4,
!      C99 and C11 6.4.4.4).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * `The current locale used to convert a wide character constant
!      consisting of a single multibyte character that maps to a member
!      of the extended execution character set into a corresponding wide
       character code (C90 6.1.3.4, C99 and C11 6.4.4.4).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * `Whether differently-prefixed wide string literal tokens can be
       concatenated and, if so, the treatment of the resulting multibyte
       character sequence (C11 6.4.5).'
  
       Such tokens may not be concatenated.
  
!    * `The current locale used to convert a wide string literal into
       corresponding wide character codes (C90 6.1.4, C99 and C11 6.4.5).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * `The value of a string literal containing a multibyte character or
!      escape sequence not represented in the execution character set
!      (C90 6.1.4, C99 and C11 6.4.5).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * `The encoding of any of `wchar_t', `char16_t', and `char32_t'
!      where the corresponding standard encoding macro
!      (`__STDC_ISO_10646__', `__STDC_UTF_16__', or `__STDC_UTF_32__') is
!      not defined (C11 6.10.8.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
!      behavior.  `char16_t' and `char32_t' literals are always encoded
!      in UTF-16 and UTF-32 respectively.
! 
  
  
  File: gcc.info,  Node: Integers implementation,  Next: Floating point implementation,  Prev: Characters implementation,  Up: C Implementation
--- 23322,23456 ----
  The behavior of most of these points are dependent on the implementation
  of the C library, and are not defined by GCC itself.
  
!    * 'The mapping between physical source file multibyte characters and
       the source character set in translation phase 1 (C90, C99 and C11
       5.1.1.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
  
  File: gcc.info,  Node: Identifiers implementation,  Next: Characters implementation,  Prev: Environment implementation,  Up: C Implementation
  
  4.3 Identifiers
  ===============
  
!    * 'Which additional multibyte characters may appear in identifiers
       and their correspondence to universal character names (C99 and C11
       6.4.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * 'The number of significant initial characters in an identifier (C90
!      6.1.2, C90, C99 and C11 5.2.4.1, C99 and C11 6.4.2).'
  
       For internal names, all characters are significant.  For external
       names, the number of significant characters are defined by the
       linker; for almost all targets, all characters are significant.
  
!    * 'Whether case distinctions are significant in an identifier with
       external linkage (C90 6.1.2).'
  
       This is a property of the linker.  C99 and C11 require that case
       distinctions are always significant in identifiers with external
       linkage and systems without this property are not supported by GCC.
  
  
  File: gcc.info,  Node: Characters implementation,  Next: Integers implementation,  Prev: Identifiers implementation,  Up: C Implementation
  
  4.4 Characters
  ==============
  
!    * 'The number of bits in a byte (C90 3.4, C99 and C11 3.6).'
  
       Determined by ABI.
  
!    * 'The values of the members of the execution character set (C90, C99
!      and C11 5.2.1).'
  
       Determined by ABI.
  
!    * 'The unique value of the member of the execution character set
!      produced for each of the standard alphabetic escape sequences (C90,
!      C99 and C11 5.2.2).'
  
       Determined by ABI.
  
!    * 'The value of a 'char' object into which has been stored any
       character other than a member of the basic execution character set
       (C90 6.1.2.5, C99 and C11 6.2.5).'
  
       Determined by ABI.
  
!    * 'Which of 'signed char' or 'unsigned char' has the same range,
!      representation, and behavior as "plain" 'char' (C90 6.1.2.5, C90
       6.2.1.1, C99 and C11 6.2.5, C99 and C11 6.3.1.1).'
  
!      Determined by ABI.  The options '-funsigned-char' and
!      '-fsigned-char' change the default.  *Note Options Controlling C
       Dialect: C Dialect Options.
  
!    * 'The mapping of members of the source character set (in character
       constants and string literals) to members of the execution
       character set (C90 6.1.3.4, C99 and C11 6.4.4.4, C90, C99 and C11
       5.1.1.2).'
  
       Determined by ABI.
  
!    * 'The value of an integer character constant containing more than
       one character or containing a character or escape sequence that
!      does not map to a single-byte execution character (C90 6.1.3.4, C99
!      and C11 6.4.4.4).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * 'The value of a wide character constant containing more than one
       multibyte character or a single multibyte character that maps to
       multiple members of the extended execution character set, or
!      containing a multibyte character or escape sequence not represented
!      in the extended execution character set (C90 6.1.3.4, C99 and C11
!      6.4.4.4).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * 'The current locale used to convert a wide character constant
!      consisting of a single multibyte character that maps to a member of
!      the extended execution character set into a corresponding wide
       character code (C90 6.1.3.4, C99 and C11 6.4.4.4).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * 'Whether differently-prefixed wide string literal tokens can be
       concatenated and, if so, the treatment of the resulting multibyte
       character sequence (C11 6.4.5).'
  
       Such tokens may not be concatenated.
  
!    * 'The current locale used to convert a wide string literal into
       corresponding wide character codes (C90 6.1.4, C99 and C11 6.4.5).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * 'The value of a string literal containing a multibyte character or
!      escape sequence not represented in the execution character set (C90
!      6.1.4, C99 and C11 6.4.5).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
       behavior.
  
!    * 'The encoding of any of 'wchar_t', 'char16_t', and 'char32_t' where
!      the corresponding standard encoding macro ('__STDC_ISO_10646__',
!      '__STDC_UTF_16__', or '__STDC_UTF_32__') is not defined (C11
!      6.10.8.2).'
  
       *Note Implementation-defined behavior: (cpp)Implementation-defined
!      behavior.  'char16_t' and 'char32_t' literals are always encoded in
!      UTF-16 and UTF-32 respectively.
  
  
  File: gcc.info,  Node: Integers implementation,  Next: Floating point implementation,  Prev: Characters implementation,  Up: C Implementation
*************** File: gcc.info,  Node: Integers implemen
*** 23561,23572 ****
  4.5 Integers
  ============
  
!    * `Any extended integer types that exist in the implementation (C99
       and C11 6.2.5).'
  
       GCC does not support any extended integer types.
  
!    * `Whether signed integer types are represented using sign and
       magnitude, two's complement, or one's complement, and whether the
       extraordinary value is a trap representation or an ordinary value
       (C99 and C11 6.2.6.2).'
--- 23458,23469 ----
  4.5 Integers
  ============
  
!    * 'Any extended integer types that exist in the implementation (C99
       and C11 6.2.5).'
  
       GCC does not support any extended integer types.
  
!    * 'Whether signed integer types are represented using sign and
       magnitude, two's complement, or one's complement, and whether the
       extraordinary value is a trap representation or an ordinary value
       (C99 and C11 6.2.6.2).'
*************** File: gcc.info,  Node: Integers implemen
*** 23574,23701 ****
       GCC supports only two's complement integer types, and all bit
       patterns are ordinary values.
  
!    * `The rank of any extended integer type relative to another extended
       integer type with the same precision (C99 and C11 6.3.1.1).'
  
       GCC does not support any extended integer types.
  
!    * `The result of, or the signal raised by, converting an integer to a
       signed integer type when the value cannot be represented in an
       object of that type (C90 6.2.1.2, C99 and C11 6.3.1.3).'
  
       For conversion to a type of width N, the value is reduced modulo
       2^N to be within range of the type; no signal is raised.
  
!    * `The results of some bitwise operations on signed integers (C90
       6.3, C99 and C11 6.5).'
  
       Bitwise operators act on the representation of the value including
       both the sign and value bits, where the sign bit is considered
!      immediately above the highest-value value bit.  Signed `>>' acts
!      on negative numbers by sign extension.
  
       As an extension to the C language, GCC does not use the latitude
!      given in C99 and C11 only to treat certain aspects of signed `<<'
!      as undefined.  However, `-fsanitize=shift' (and
!      `-fsanitize=undefined') will diagnose such cases.  They are also
       diagnosed where constant expressions are required.
  
!    * `The sign of the remainder on integer division (C90 6.3.5).'
  
       GCC always follows the C99 and C11 requirement that the result of
       division is truncated towards zero.
  
- 
  
  File: gcc.info,  Node: Floating point implementation,  Next: Arrays and pointers implementation,  Prev: Integers implementation,  Up: C Implementation
  
  4.6 Floating Point
  ==================
  
!    * `The accuracy of the floating-point operations and of the library
!      functions in `<math.h>' and `<complex.h>' that return
       floating-point results (C90, C99 and C11 5.2.4.2.2).'
  
       The accuracy is unknown.
  
!    * `The rounding behaviors characterized by non-standard values of
!      `FLT_ROUNDS'  (C90, C99 and C11 5.2.4.2.2).'
  
       GCC does not use such values.
  
!    * `The evaluation methods characterized by non-standard negative
!      values of `FLT_EVAL_METHOD' (C99 and C11 5.2.4.2.2).'
  
       GCC does not use such values.
  
!    * `The direction of rounding when an integer is converted to a
       floating-point number that cannot exactly represent the original
       value (C90 6.2.1.3, C99 and C11 6.3.1.4).'
  
       C99 Annex F is followed.
  
!    * `The direction of rounding when a floating-point number is
!      converted to a narrower floating-point number (C90 6.2.1.4, C99
!      and C11 6.3.1.5).'
  
       C99 Annex F is followed.
  
!    * `How the nearest representable value or the larger or smaller
       representable value immediately adjacent to the nearest
       representable value is chosen for certain floating constants (C90
       6.1.3.1, C99 and C11 6.4.4.2).'
  
       C99 Annex F is followed.
  
!    * `Whether and how floating expressions are contracted when not
!      disallowed by the `FP_CONTRACT' pragma (C99 and C11 6.5).'
  
!      Expressions are currently only contracted if `-ffp-contract=fast',
!      `-funsafe-math-optimizations' or `-ffast-math' are used.  This is
       subject to change.
  
!    * `The default state for the `FENV_ACCESS' pragma (C99 and C11
       7.6.1).'
  
       This pragma is not implemented, but the default is to "off" unless
!      `-frounding-math' is used in which case it is "on".
  
!    * `Additional floating-point exceptions, rounding modes,
       environments, and classifications, and their macro names (C99 and
       C11 7.6, C99 and C11 7.12).'
  
       This is dependent on the implementation of the C library, and is
       not defined by GCC itself.
  
!    * `The default state for the `FP_CONTRACT' pragma (C99 and C11
       7.12.2).'
  
       This pragma is not implemented.  Expressions are currently only
!      contracted if `-ffp-contract=fast', `-funsafe-math-optimizations'
!      or `-ffast-math' are used.  This is subject to change.
  
!    * `Whether the "inexact" floating-point exception can be raised when
       the rounded result actually does equal the mathematical result in
       an IEC 60559 conformant implementation (C99 F.9).'
  
       This is dependent on the implementation of the C library, and is
       not defined by GCC itself.
  
!    * `Whether the "underflow" (and "inexact") floating-point exception
!      can be raised when a result is tiny but not inexact in an IEC
!      60559 conformant implementation (C99 F.9).'
  
       This is dependent on the implementation of the C library, and is
       not defined by GCC itself.
  
- 
  
  File: gcc.info,  Node: Arrays and pointers implementation,  Next: Hints implementation,  Prev: Floating point implementation,  Up: C Implementation
  
  4.7 Arrays and Pointers
  =======================
  
!    * `The result of converting a pointer to an integer or vice versa
       (C90 6.3.4, C99 and C11 6.3.2.3).'
  
       A cast from pointer to integer discards most-significant bits if
--- 23471,23596 ----
       GCC supports only two's complement integer types, and all bit
       patterns are ordinary values.
  
!    * 'The rank of any extended integer type relative to another extended
       integer type with the same precision (C99 and C11 6.3.1.1).'
  
       GCC does not support any extended integer types.
  
!    * 'The result of, or the signal raised by, converting an integer to a
       signed integer type when the value cannot be represented in an
       object of that type (C90 6.2.1.2, C99 and C11 6.3.1.3).'
  
       For conversion to a type of width N, the value is reduced modulo
       2^N to be within range of the type; no signal is raised.
  
!    * 'The results of some bitwise operations on signed integers (C90
       6.3, C99 and C11 6.5).'
  
       Bitwise operators act on the representation of the value including
       both the sign and value bits, where the sign bit is considered
!      immediately above the highest-value value bit.  Signed '>>' acts on
!      negative numbers by sign extension.
  
       As an extension to the C language, GCC does not use the latitude
!      given in C99 and C11 only to treat certain aspects of signed '<<'
!      as undefined.  However, '-fsanitize=shift' (and
!      '-fsanitize=undefined') will diagnose such cases.  They are also
       diagnosed where constant expressions are required.
  
!    * 'The sign of the remainder on integer division (C90 6.3.5).'
  
       GCC always follows the C99 and C11 requirement that the result of
       division is truncated towards zero.
  
  
  File: gcc.info,  Node: Floating point implementation,  Next: Arrays and pointers implementation,  Prev: Integers implementation,  Up: C Implementation
  
  4.6 Floating Point
  ==================
  
!    * 'The accuracy of the floating-point operations and of the library
!      functions in '<math.h>' and '<complex.h>' that return
       floating-point results (C90, C99 and C11 5.2.4.2.2).'
  
       The accuracy is unknown.
  
!    * 'The rounding behaviors characterized by non-standard values of
!      'FLT_ROUNDS' (C90, C99 and C11 5.2.4.2.2).'
  
       GCC does not use such values.
  
!    * 'The evaluation methods characterized by non-standard negative
!      values of 'FLT_EVAL_METHOD' (C99 and C11 5.2.4.2.2).'
  
       GCC does not use such values.
  
!    * 'The direction of rounding when an integer is converted to a
       floating-point number that cannot exactly represent the original
       value (C90 6.2.1.3, C99 and C11 6.3.1.4).'
  
       C99 Annex F is followed.
  
!    * 'The direction of rounding when a floating-point number is
!      converted to a narrower floating-point number (C90 6.2.1.4, C99 and
!      C11 6.3.1.5).'
  
       C99 Annex F is followed.
  
!    * 'How the nearest representable value or the larger or smaller
       representable value immediately adjacent to the nearest
       representable value is chosen for certain floating constants (C90
       6.1.3.1, C99 and C11 6.4.4.2).'
  
       C99 Annex F is followed.
  
!    * 'Whether and how floating expressions are contracted when not
!      disallowed by the 'FP_CONTRACT' pragma (C99 and C11 6.5).'
  
!      Expressions are currently only contracted if '-ffp-contract=fast',
!      '-funsafe-math-optimizations' or '-ffast-math' are used.  This is
       subject to change.
  
!    * 'The default state for the 'FENV_ACCESS' pragma (C99 and C11
       7.6.1).'
  
       This pragma is not implemented, but the default is to "off" unless
!      '-frounding-math' is used in which case it is "on".
  
!    * 'Additional floating-point exceptions, rounding modes,
       environments, and classifications, and their macro names (C99 and
       C11 7.6, C99 and C11 7.12).'
  
       This is dependent on the implementation of the C library, and is
       not defined by GCC itself.
  
!    * 'The default state for the 'FP_CONTRACT' pragma (C99 and C11
       7.12.2).'
  
       This pragma is not implemented.  Expressions are currently only
!      contracted if '-ffp-contract=fast', '-funsafe-math-optimizations'
!      or '-ffast-math' are used.  This is subject to change.
  
!    * 'Whether the "inexact" floating-point exception can be raised when
       the rounded result actually does equal the mathematical result in
       an IEC 60559 conformant implementation (C99 F.9).'
  
       This is dependent on the implementation of the C library, and is
       not defined by GCC itself.
  
!    * 'Whether the "underflow" (and "inexact") floating-point exception
!      can be raised when a result is tiny but not inexact in an IEC 60559
!      conformant implementation (C99 F.9).'
  
       This is dependent on the implementation of the C library, and is
       not defined by GCC itself.
  
  
  File: gcc.info,  Node: Arrays and pointers implementation,  Next: Hints implementation,  Prev: Floating point implementation,  Up: C Implementation
  
  4.7 Arrays and Pointers
  =======================
  
!    * 'The result of converting a pointer to an integer or vice versa
       (C90 6.3.4, C99 and C11 6.3.2.3).'
  
       A cast from pointer to integer discards most-significant bits if
*************** File: gcc.info,  Node: Arrays and pointe
*** 23715,23731 ****
       integer arithmetic to avoid the undefined behavior of pointer
       arithmetic as proscribed in C99 and C11 6.5.6/8.
  
!    * `The size of the result of subtracting two pointers to elements of
       the same array (C90 6.3.6, C99 and C11 6.5.6).'
  
       The value is as specified in the standard and the type is
       determined by the ABI.
  
  
!  ---------- Footnotes ----------
! 
!  (1) Future versions of GCC may zero-extend, or use a target-defined
! `ptr_extend' pattern.  Do not rely on sign extension.
  
  
  File: gcc.info,  Node: Hints implementation,  Next: Structures unions enumerations and bit-fields implementation,  Prev: Arrays and pointers implementation,  Up: C Implementation
--- 23610,23625 ----
       integer arithmetic to avoid the undefined behavior of pointer
       arithmetic as proscribed in C99 and C11 6.5.6/8.
  
!    * 'The size of the result of subtracting two pointers to elements of
       the same array (C90 6.3.6, C99 and C11 6.5.6).'
  
       The value is as specified in the standard and the type is
       determined by the ABI.
  
+    ---------- Footnotes ----------
  
!    (1) Future versions of GCC may zero-extend, or use a target-defined
! 'ptr_extend' pattern.  Do not rely on sign extension.
  
  
  File: gcc.info,  Node: Hints implementation,  Next: Structures unions enumerations and bit-fields implementation,  Prev: Arrays and pointers implementation,  Up: C Implementation
*************** File: gcc.info,  Node: Hints implementat
*** 23733,23826 ****
  4.8 Hints
  =========
  
!    * `The extent to which suggestions made by using the `register'
       storage-class specifier are effective (C90 6.5.1, C99 and C11
       6.7.1).'
  
!      The `register' specifier affects code generation only in these
       ways:
  
          * When used as part of the register variable extension, see
            *note Explicit Register Variables::.
  
!         * When `-O0' is in use, the compiler allocates distinct stack
!           memory for all variables that do not have the `register'
!           storage-class specifier; if `register' is specified, the
            variable may have a shorter lifespan than the code would
            indicate and may never be placed in memory.
  
!         * On some rare x86 targets, `setjmp' doesn't save the registers
            in all circumstances.  In those cases, GCC doesn't allocate
!           any variables in registers unless they are marked `register'.
! 
  
!    * `The extent to which suggestions made by using the inline function
       specifier are effective (C99 and C11 6.7.4).'
  
!      GCC will not inline any functions if the `-fno-inline' option is
!      used or if `-O0' is used.  Otherwise, GCC may still be unable to
!      inline a function for many reasons; the `-Winline' option may be
       used to determine if a function has not been inlined and why not.
  
- 
  
  File: gcc.info,  Node: Structures unions enumerations and bit-fields implementation,  Next: Qualifiers implementation,  Prev: Hints implementation,  Up: C Implementation
  
  4.9 Structures, Unions, Enumerations, and Bit-Fields
  ====================================================
  
!    * `A member of a union object is accessed using a member of a
       different type (C90 6.3.2.3).'
  
       The relevant bytes of the representation of the object are treated
       as an object of the type used for the access.  *Note
       Type-punning::.  This may be a trap representation.
  
!    * `Whether a "plain" `int' bit-field is treated as a `signed int'
!      bit-field or as an `unsigned int' bit-field (C90 6.5.2, C90
       6.5.2.1, C99 and C11 6.7.2, C99 and C11 6.7.2.1).'
  
!      By default it is treated as `signed int' but this may be changed
!      by the `-funsigned-bitfields' option.
  
!    * `Allowable bit-field types other than `_Bool', `signed int', and
!      `unsigned int' (C99 and C11 6.7.2.1).'
  
!      Other integer types, such as `long int', and enumerated types are
       permitted even in strictly conforming mode.
  
!    * `Whether atomic types are permitted for bit-fields (C11 6.7.2.1).'
  
       Atomic types are not permitted for bit-fields.
  
!    * `Whether a bit-field can straddle a storage-unit boundary (C90
       6.5.2.1, C99 and C11 6.7.2.1).'
  
       Determined by ABI.
  
!    * `The order of allocation of bit-fields within a unit (C90 6.5.2.1,
       C99 and C11 6.7.2.1).'
  
       Determined by ABI.
  
!    * `The alignment of non-bit-field members of structures (C90
!      6.5.2.1, C99 and C11 6.7.2.1).'
  
       Determined by ABI.
  
!    * `The integer type compatible with each enumerated type (C90
       6.5.2.2, C99 and C11 6.7.2.2).'
  
!      Normally, the type is `unsigned int' if there are no negative
!      values in the enumeration, otherwise `int'.  If `-fshort-enums' is
       specified, then if there are negative values it is the first of
!      `signed char', `short' and `int' that can represent all the
!      values, otherwise it is the first of `unsigned char', `unsigned
!      short' and `unsigned int' that can represent all the values.
! 
!      On some targets, `-fshort-enums' is the default; this is
!      determined by the ABI.
  
  
  
  File: gcc.info,  Node: Qualifiers implementation,  Next: Declarators implementation,  Prev: Structures unions enumerations and bit-fields implementation,  Up: C Implementation
--- 23627,23717 ----
  4.8 Hints
  =========
  
!    * 'The extent to which suggestions made by using the 'register'
       storage-class specifier are effective (C90 6.5.1, C99 and C11
       6.7.1).'
  
!      The 'register' specifier affects code generation only in these
       ways:
  
          * When used as part of the register variable extension, see
            *note Explicit Register Variables::.
  
!         * When '-O0' is in use, the compiler allocates distinct stack
!           memory for all variables that do not have the 'register'
!           storage-class specifier; if 'register' is specified, the
            variable may have a shorter lifespan than the code would
            indicate and may never be placed in memory.
  
!         * On some rare x86 targets, 'setjmp' doesn't save the registers
            in all circumstances.  In those cases, GCC doesn't allocate
!           any variables in registers unless they are marked 'register'.
  
!    * 'The extent to which suggestions made by using the inline function
       specifier are effective (C99 and C11 6.7.4).'
  
!      GCC will not inline any functions if the '-fno-inline' option is
!      used or if '-O0' is used.  Otherwise, GCC may still be unable to
!      inline a function for many reasons; the '-Winline' option may be
       used to determine if a function has not been inlined and why not.
  
  
  File: gcc.info,  Node: Structures unions enumerations and bit-fields implementation,  Next: Qualifiers implementation,  Prev: Hints implementation,  Up: C Implementation
  
  4.9 Structures, Unions, Enumerations, and Bit-Fields
  ====================================================
  
!    * 'A member of a union object is accessed using a member of a
       different type (C90 6.3.2.3).'
  
       The relevant bytes of the representation of the object are treated
       as an object of the type used for the access.  *Note
       Type-punning::.  This may be a trap representation.
  
!    * 'Whether a "plain" 'int' bit-field is treated as a 'signed int'
!      bit-field or as an 'unsigned int' bit-field (C90 6.5.2, C90
       6.5.2.1, C99 and C11 6.7.2, C99 and C11 6.7.2.1).'
  
!      By default it is treated as 'signed int' but this may be changed by
!      the '-funsigned-bitfields' option.
  
!    * 'Allowable bit-field types other than '_Bool', 'signed int', and
!      'unsigned int' (C99 and C11 6.7.2.1).'
  
!      Other integer types, such as 'long int', and enumerated types are
       permitted even in strictly conforming mode.
  
!    * 'Whether atomic types are permitted for bit-fields (C11 6.7.2.1).'
  
       Atomic types are not permitted for bit-fields.
  
!    * 'Whether a bit-field can straddle a storage-unit boundary (C90
       6.5.2.1, C99 and C11 6.7.2.1).'
  
       Determined by ABI.
  
!    * 'The order of allocation of bit-fields within a unit (C90 6.5.2.1,
       C99 and C11 6.7.2.1).'
  
       Determined by ABI.
  
!    * 'The alignment of non-bit-field members of structures (C90 6.5.2.1,
!      C99 and C11 6.7.2.1).'
  
       Determined by ABI.
  
!    * 'The integer type compatible with each enumerated type (C90
       6.5.2.2, C99 and C11 6.7.2.2).'
  
!      Normally, the type is 'unsigned int' if there are no negative
!      values in the enumeration, otherwise 'int'.  If '-fshort-enums' is
       specified, then if there are negative values it is the first of
!      'signed char', 'short' and 'int' that can represent all the values,
!      otherwise it is the first of 'unsigned char', 'unsigned short' and
!      'unsigned int' that can represent all the values.
  
+      On some targets, '-fshort-enums' is the default; this is determined
+      by the ABI.
  
  
  File: gcc.info,  Node: Qualifiers implementation,  Next: Declarators implementation,  Prev: Structures unions enumerations and bit-fields implementation,  Up: C Implementation
*************** File: gcc.info,  Node: Qualifiers implem
*** 23828,23839 ****
  4.10 Qualifiers
  ===============
  
!    * `What constitutes an access to an object that has
       volatile-qualified type (C90 6.5.3, C99 and C11 6.7.3).'
  
       Such an object is normally accessed by pointers and used for
!      accessing hardware.  In most expressions, it is intuitively
!      obvious what is a read and what is a write.  For example
  
            volatile int *dst = SOMEVALUE;
            volatile int *src = SOMEOTHERVALUE;
--- 23719,23730 ----
  4.10 Qualifiers
  ===============
  
!    * 'What constitutes an access to an object that has
       volatile-qualified type (C90 6.5.3, C99 and C11 6.7.3).'
  
       Such an object is normally accessed by pointers and used for
!      accessing hardware.  In most expressions, it is intuitively obvious
!      what is a read and what is a write.  For example
  
            volatile int *dst = SOMEVALUE;
            volatile int *src = SOMEOTHERVALUE;
*************** File: gcc.info,  Node: Qualifiers implem
*** 23842,23848 ****
       will cause a read of the volatile object pointed to by SRC and
       store the value into the volatile object pointed to by DST.  There
       is no guarantee that these reads and writes are atomic, especially
!      for objects larger than `int'.
  
       However, if the volatile storage is not being modified, and the
       value of the volatile storage is not used, then the situation is
--- 23733,23739 ----
       will cause a read of the volatile object pointed to by SRC and
       store the value into the volatile object pointed to by DST.  There
       is no guarantee that these reads and writes are atomic, especially
!      for objects larger than 'int'.
  
       However, if the volatile storage is not being modified, and the
       value of the volatile storage is not used, then the situation is
*************** File: gcc.info,  Node: Qualifiers implem
*** 23852,23858 ****
            *src;
  
       According to the C standard, such an expression is an rvalue whose
!      type is the unqualified version of its original type, i.e. `int'.
       Whether GCC interprets this as a read of the volatile object being
       pointed to or only as a request to evaluate the expression for its
       side-effects depends on this type.
--- 23743,23749 ----
            *src;
  
       According to the C standard, such an expression is an rvalue whose
!      type is the unqualified version of its original type, i.e.  'int'.
       Whether GCC interprets this as a read of the volatile object being
       pointed to or only as a request to evaluate the expression for its
       side-effects depends on this type.
*************** File: gcc.info,  Node: Qualifiers implem
*** 23863,23893 ****
       by GCC as a read of the volatile object; in the other cases, the
       expression is only evaluated for its side-effects.
  
- 
  
  File: gcc.info,  Node: Declarators implementation,  Next: Statements implementation,  Prev: Qualifiers implementation,  Up: C Implementation
  
  4.11 Declarators
  ================
  
!    * `The maximum number of declarators that may modify an arithmetic,
       structure or union type (C90 6.5.4).'
  
       GCC is only limited by available memory.
  
- 
  
  File: gcc.info,  Node: Statements implementation,  Next: Preprocessing directives implementation,  Prev: Declarators implementation,  Up: C Implementation
  
  4.12 Statements
  ===============
  
!    * `The maximum number of `case' values in a `switch' statement (C90
       6.6.4.2).'
  
       GCC is only limited by available memory.
  
- 
  
  File: gcc.info,  Node: Preprocessing directives implementation,  Next: Library functions implementation,  Prev: Statements implementation,  Up: C Implementation
  
--- 23754,23781 ----
       by GCC as a read of the volatile object; in the other cases, the
       expression is only evaluated for its side-effects.
  
  
  File: gcc.info,  Node: Declarators implementation,  Next: Statements implementation,  Prev: Qualifiers implementation,  Up: C Implementation
  
  4.11 Declarators
  ================
  
!    * 'The maximum number of declarators that may modify an arithmetic,
       structure or union type (C90 6.5.4).'
  
       GCC is only limited by available memory.
  
  
  File: gcc.info,  Node: Statements implementation,  Next: Preprocessing directives implementation,  Prev: Declarators implementation,  Up: C Implementation
  
  4.12 Statements
  ===============
  
!    * 'The maximum number of 'case' values in a 'switch' statement (C90
       6.6.4.2).'
  
       GCC is only limited by available memory.
  
  
  File: gcc.info,  Node: Preprocessing directives implementation,  Next: Library functions implementation,  Prev: Statements implementation,  Up: C Implementation
  
*************** File: gcc.info,  Node: Preprocessing dir
*** 23898,23948 ****
  behavior, for details of these aspects of implementation-defined
  behavior.
  
!    * `The locations within `#pragma' directives where header name
       preprocessing tokens are recognized (C11 6.4, C11 6.4.7).'
  
!    * `How sequences in both forms of header names are mapped to headers
       or external source file names (C90 6.1.7, C99 and C11 6.4.7).'
  
!    * `Whether the value of a character constant in a constant expression
       that controls conditional inclusion matches the value of the same
       character constant in the execution character set (C90 6.8.1, C99
       and C11 6.10.1).'
  
!    * `Whether the value of a single-character character constant in a
       constant expression that controls conditional inclusion may have a
       negative value (C90 6.8.1, C99 and C11 6.10.1).'
  
!    * `The places that are searched for an included `<>' delimited
       header, and how the places are specified or the header is
       identified (C90 6.8.2, C99 and C11 6.10.2).'
  
!    * `How the named source file is searched for in an included `""'
       delimited header (C90 6.8.2, C99 and C11 6.10.2).'
  
!    * `The method by which preprocessing tokens (possibly resulting from
!      macro expansion) in a `#include' directive are combined into a
       header name (C90 6.8.2, C99 and C11 6.10.2).'
  
!    * `The nesting limit for `#include' processing (C90 6.8.2, C99 and
       C11 6.10.2).'
  
!    * `Whether the `#' operator inserts a `\' character before the `\'
       character that begins a universal character name in a character
       constant or string literal (C99 and C11 6.10.3.2).'
  
!    * `The behavior on each recognized non-`STDC #pragma' directive (C90
       6.8.6, C99 and C11 6.10.6).'
  
!      *Note Pragmas: (cpp)Pragmas, for details of pragmas accepted by
!      GCC on all targets.  *Note Pragmas Accepted by GCC: Pragmas, for
       details of target-specific pragmas.
  
!    * `The definitions for `__DATE__' and `__TIME__' when respectively,
       the date and time of translation are not available (C90 6.8.8, C99
       6.10.8, C11 6.10.8.1).'
  
- 
  
  File: gcc.info,  Node: Library functions implementation,  Next: Architecture implementation,  Prev: Preprocessing directives implementation,  Up: C Implementation
  
--- 23786,23835 ----
  behavior, for details of these aspects of implementation-defined
  behavior.
  
!    * 'The locations within '#pragma' directives where header name
       preprocessing tokens are recognized (C11 6.4, C11 6.4.7).'
  
!    * 'How sequences in both forms of header names are mapped to headers
       or external source file names (C90 6.1.7, C99 and C11 6.4.7).'
  
!    * 'Whether the value of a character constant in a constant expression
       that controls conditional inclusion matches the value of the same
       character constant in the execution character set (C90 6.8.1, C99
       and C11 6.10.1).'
  
!    * 'Whether the value of a single-character character constant in a
       constant expression that controls conditional inclusion may have a
       negative value (C90 6.8.1, C99 and C11 6.10.1).'
  
!    * 'The places that are searched for an included '<>' delimited
       header, and how the places are specified or the header is
       identified (C90 6.8.2, C99 and C11 6.10.2).'
  
!    * 'How the named source file is searched for in an included '""'
       delimited header (C90 6.8.2, C99 and C11 6.10.2).'
  
!    * 'The method by which preprocessing tokens (possibly resulting from
!      macro expansion) in a '#include' directive are combined into a
       header name (C90 6.8.2, C99 and C11 6.10.2).'
  
!    * 'The nesting limit for '#include' processing (C90 6.8.2, C99 and
       C11 6.10.2).'
  
!    * 'Whether the '#' operator inserts a '\' character before the '\'
       character that begins a universal character name in a character
       constant or string literal (C99 and C11 6.10.3.2).'
  
!    * 'The behavior on each recognized non-'STDC #pragma' directive (C90
       6.8.6, C99 and C11 6.10.6).'
  
!      *Note Pragmas: (cpp)Pragmas, for details of pragmas accepted by GCC
!      on all targets.  *Note Pragmas Accepted by GCC: Pragmas, for
       details of target-specific pragmas.
  
!    * 'The definitions for '__DATE__' and '__TIME__' when respectively,
       the date and time of translation are not available (C90 6.8.8, C99
       6.10.8, C11 6.10.8.1).'
  
  
  File: gcc.info,  Node: Library functions implementation,  Next: Architecture implementation,  Prev: Preprocessing directives implementation,  Up: C Implementation
  
*************** File: gcc.info,  Node: Library functions
*** 23952,23978 ****
  The behavior of most of these points are dependent on the implementation
  of the C library, and are not defined by GCC itself.
  
!    * `The null pointer constant to which the macro `NULL' expands (C90
       7.1.6, C99 7.17, C11 7.19).'
  
!      In `<stddef.h>', `NULL' expands to `((void *)0)'.  GCC does not
!      provide the other headers which define `NULL' and some library
       implementations may use other definitions in those headers.
  
- 
  
  File: gcc.info,  Node: Architecture implementation,  Next: Locale-specific behavior implementation,  Prev: Library functions implementation,  Up: C Implementation
  
  4.15 Architecture
  =================
  
!    * `The values or expressions assigned to the macros specified in the
!      headers `<float.h>', `<limits.h>', and `<stdint.h>' (C90, C99 and
       C11 5.2.4.2, C99 7.18.2, C99 7.18.3, C11 7.20.2, C11 7.20.3).'
  
       Determined by ABI.
  
!    * `The result of attempting to indirectly access an object with
       automatic or thread storage duration from a thread other than the
       one with which it is associated (C11 6.2.4).'
  
--- 23839,23864 ----
  The behavior of most of these points are dependent on the implementation
  of the C library, and are not defined by GCC itself.
  
!    * 'The null pointer constant to which the macro 'NULL' expands (C90
       7.1.6, C99 7.17, C11 7.19).'
  
!      In '<stddef.h>', 'NULL' expands to '((void *)0)'.  GCC does not
!      provide the other headers which define 'NULL' and some library
       implementations may use other definitions in those headers.
  
  
  File: gcc.info,  Node: Architecture implementation,  Next: Locale-specific behavior implementation,  Prev: Library functions implementation,  Up: C Implementation
  
  4.15 Architecture
  =================
  
!    * 'The values or expressions assigned to the macros specified in the
!      headers '<float.h>', '<limits.h>', and '<stdint.h>' (C90, C99 and
       C11 5.2.4.2, C99 7.18.2, C99 7.18.3, C11 7.20.2, C11 7.20.3).'
  
       Determined by ABI.
  
!    * 'The result of attempting to indirectly access an object with
       automatic or thread storage duration from a thread other than the
       one with which it is associated (C11 6.2.4).'
  
*************** File: gcc.info,  Node: Architecture impl
*** 23980,24009 ****
       synchronization for concurrent accesses as for concurrent accesses
       to any object.
  
!    * `The number, order, and encoding of bytes in any object (when not
       explicitly specified in this International Standard) (C99 and C11
       6.2.6.1).'
  
       Determined by ABI.
  
!    * `Whether any extended alignments are supported and the contexts in
       which they are supported (C11 6.2.8).'
  
!      Extended alignments up to 2^28 (bytes) are supported for objects
!      of automatic storage duration.  Alignments supported for objects
!      of static and thread storage duration are determined by the ABI.
  
!    * `Valid alignment values other than those returned by an _Alignof
       expression for fundamental types, if any (C11 6.2.8).'
  
!      Valid alignments are powers of 2 up to and including 2^28.
  
!    * `The value of the result of the `sizeof' and `_Alignof' operators
       (C90 6.3.3.4, C99 and C11 6.5.3.4).'
  
       Determined by ABI.
  
- 
  
  File: gcc.info,  Node: Locale-specific behavior implementation,  Prev: Architecture implementation,  Up: C Implementation
  
--- 23866,23894 ----
       synchronization for concurrent accesses as for concurrent accesses
       to any object.
  
!    * 'The number, order, and encoding of bytes in any object (when not
       explicitly specified in this International Standard) (C99 and C11
       6.2.6.1).'
  
       Determined by ABI.
  
!    * 'Whether any extended alignments are supported and the contexts in
       which they are supported (C11 6.2.8).'
  
!      Extended alignments up to 2^{28} (bytes) are supported for objects
!      of automatic storage duration.  Alignments supported for objects of
!      static and thread storage duration are determined by the ABI.
  
!    * 'Valid alignment values other than those returned by an _Alignof
       expression for fundamental types, if any (C11 6.2.8).'
  
!      Valid alignments are powers of 2 up to and including 2^{28}.
  
!    * 'The value of the result of the 'sizeof' and '_Alignof' operators
       (C90 6.3.3.4, C99 and C11 6.5.3.4).'
  
       Determined by ABI.
  
  
  File: gcc.info,  Node: Locale-specific behavior implementation,  Prev: Architecture implementation,  Up: C Implementation
  
*************** A conforming implementation of ISO C++ i
*** 24023,24041 ****
  choice of behavior in each of the areas that are designated
  "implementation defined".  The following lists all such areas, along
  with the section numbers from the ISO/IEC 14882:1998 and ISO/IEC
! 14882:2003 standards.  Some areas are only implementation-defined in
! one version of the standard.
  
   Some choices depend on the externally determined ABI for the platform
  (including standard character encodings) which GCC follows; these are
  listed as "determined by ABI" below.  *Note Binary Compatibility:
! Compatibility, and `http://gcc.gnu.org/readings.html'.  Some choices
! are documented in the preprocessor manual.  *Note
! Implementation-defined behavior: (cpp)Implementation-defined behavior.
! Some choices are documented in the corresponding document for the C
! language.  *Note C Implementation::.  Some choices are made by the
! library and operating system (or other environment when compiling for a
! freestanding environment); refer to their documentation for details.
  
  * Menu:
  
--- 23908,23926 ----
  choice of behavior in each of the areas that are designated
  "implementation defined".  The following lists all such areas, along
  with the section numbers from the ISO/IEC 14882:1998 and ISO/IEC
! 14882:2003 standards.  Some areas are only implementation-defined in one
! version of the standard.
  
   Some choices depend on the externally determined ABI for the platform
  (including standard character encodings) which GCC follows; these are
  listed as "determined by ABI" below.  *Note Binary Compatibility:
! Compatibility, and <http://gcc.gnu.org/readings.html>.  Some choices are
! documented in the preprocessor manual.  *Note Implementation-defined
! behavior: (cpp)Implementation-defined behavior.  Some choices are
! documented in the corresponding document for the C language.  *Note C
! Implementation::.  Some choices are made by the library and operating
! system (or other environment when compiling for a freestanding
! environment); refer to their documentation for details.
  
  * Menu:
  
*************** File: gcc.info,  Node: Conditionally-sup
*** 24048,24078 ****
  5.1 Conditionally-Supported Behavior
  ====================================
  
! `Each implementation shall include documentation that identifies all
  conditionally-supported constructs that it does not support (C++0x
  1.4).'
  
!    * `Whether an argument of class type with a non-trivial copy
       constructor or destructor can be passed to ... (C++0x 5.2.2).'
  
       Such argument passing is supported, using the same
       pass-by-invisible-reference approach used for normal function
       arguments of such types.
  
- 
  
  File: gcc.info,  Node: Exception handling,  Prev: Conditionally-supported behavior,  Up: C++ Implementation
  
  5.2 Exception Handling
  ======================
  
!    * `In the situation where no matching handler is found, it is
       implementation-defined whether or not the stack is unwound before
       std::terminate() is called (C++98 15.5.1).'
  
       The stack is not unwound before std::terminate is called.
  
- 
  
  File: gcc.info,  Node: C Extensions,  Next: C++ Extensions,  Prev: C++ Implementation,  Up: Top
  
--- 23933,23961 ----
  5.1 Conditionally-Supported Behavior
  ====================================
  
! 'Each implementation shall include documentation that identifies all
  conditionally-supported constructs that it does not support (C++0x
  1.4).'
  
!    * 'Whether an argument of class type with a non-trivial copy
       constructor or destructor can be passed to ... (C++0x 5.2.2).'
  
       Such argument passing is supported, using the same
       pass-by-invisible-reference approach used for normal function
       arguments of such types.
  
  
  File: gcc.info,  Node: Exception handling,  Prev: Conditionally-supported behavior,  Up: C++ Implementation
  
  5.2 Exception Handling
  ======================
  
!    * 'In the situation where no matching handler is found, it is
       implementation-defined whether or not the stack is unwound before
       std::terminate() is called (C++98 15.5.1).'
  
       The stack is not unwound before std::terminate is called.
  
  
  File: gcc.info,  Node: C Extensions,  Next: C++ Extensions,  Prev: C++ Implementation,  Up: Top
  
*************** File: gcc.info,  Node: C Extensions,  Ne
*** 24080,24089 ****
  *************************************
  
  GNU C provides several language features not found in ISO standard C.
! (The `-pedantic' option directs GCC to print a warning message if any
! of these features is used.)  To test for the availability of these
! features in conditional compilation, check for a predefined macro
! `__GNUC__', which is always defined under GCC.
  
   These extensions are available in C and Objective-C.  Most of them are
  also available in C++.  *Note Extensions to the C++ Language: C++
--- 23963,23972 ----
  *************************************
  
  GNU C provides several language features not found in ISO standard C.
! (The '-pedantic' option directs GCC to print a warning message if any of
! these features is used.)  To test for the availability of these features
! in conditional compilation, check for a predefined macro '__GNUC__',
! which is always defined under GCC.
  
   These extensions are available in C and Objective-C.  Most of them are
  also available in C++.  *Note Extensions to the C++ Language: C++
*************** extensions, accepted by GCC in C90 mode
*** 24099,24108 ****
  * Labels as Values::    Getting pointers to labels, and computed gotos.
  * Nested Functions::    As in Algol and Pascal, lexical scoping of functions.
  * Constructing Calls::  Dispatching a call to another function.
! * Typeof::              `typeof': referring to the type of an expression.
! * Conditionals::        Omitting the middle operand of a `?:' expression.
! * __int128::		128-bit integers---`__int128'.
! * Long Long::           Double-word integers---`long long int'.
  * Complex::             Data types for complex numbers.
  * Floating Types::      Additional Floating Types.
  * Half-Precision::      Half-Precision Floating Point.
--- 23982,23991 ----
  * Labels as Values::    Getting pointers to labels, and computed gotos.
  * Nested Functions::    As in Algol and Pascal, lexical scoping of functions.
  * Constructing Calls::  Dispatching a call to another function.
! * Typeof::              'typeof': referring to the type of an expression.
! * Conditionals::        Omitting the middle operand of a '?:' expression.
! * __int128::		128-bit integers--'__int128'.
! * Long Long::           Double-word integers--'long long int'.
  * Complex::             Data types for complex numbers.
  * Floating Types::      Additional Floating Types.
  * Half-Precision::      Half-Precision Floating Point.
*************** extensions, accepted by GCC in C90 mode
*** 24116,24128 ****
  * Variadic Macros::     Macros with a variable number of arguments.
  * Escaped Newlines::    Slightly looser rules for escaped newlines.
  * Subscripting::        Any array can be subscripted, even if not an lvalue.
! * Pointer Arith::       Arithmetic on `void'-pointers and function pointers.
  * Pointers to Arrays::  Pointers to arrays with qualifiers work as expected.
  * Initializers::        Non-constant initializers.
  * Compound Literals::   Compound literals give structures, unions
                          or arrays as values.
  * Designated Inits::    Labeling elements of initializers.
! * Case Ranges::         `case 1 ... 9' and such.
  * Cast to Union::       Casting to union type from any member of the union.
  * Mixed Declarations::  Mixing declarations and code.
  * Function Attributes:: Declaring that functions have no side effects,
--- 23999,24011 ----
  * Variadic Macros::     Macros with a variable number of arguments.
  * Escaped Newlines::    Slightly looser rules for escaped newlines.
  * Subscripting::        Any array can be subscripted, even if not an lvalue.
! * Pointer Arith::       Arithmetic on 'void'-pointers and function pointers.
  * Pointers to Arrays::  Pointers to arrays with qualifiers work as expected.
  * Initializers::        Non-constant initializers.
  * Compound Literals::   Compound literals give structures, unions
                          or arrays as values.
  * Designated Inits::    Labeling elements of initializers.
! * Case Ranges::         'case 1 ... 9' and such.
  * Cast to Union::       Casting to union type from any member of the union.
  * Mixed Declarations::  Mixing declarations and code.
  * Function Attributes:: Declaring that functions have no side effects,
*************** extensions, accepted by GCC in C90 mode
*** 24135,24152 ****
  * Function Prototypes:: Prototype declarations and old-style definitions.
  * C++ Comments::        C++ comments are recognized.
  * Dollar Signs::        Dollar sign is allowed in identifiers.
! * Character Escapes::   `\e' stands for the character <ESC>.
  * Alignment::           Inquiring about the alignment of a type or variable.
  * Inline::              Defining inline functions (as fast as macros).
  * Volatiles::           What constitutes an access to a volatile object.
  * Using Assembly Language with C:: Instructions and extensions for interfacing C with assembler.
! * Alternate Keywords::  `__const__', `__asm__', etc., for header files.
! * Incomplete Enums::    `enum foo;', with details to follow.
  * Function Names::      Printable strings which are the name of the current
                          function.
  * Return Address::      Getting the return or frame address of a function.
  * Vector Extensions::   Using vector instructions through built-in functions.
! * Offsetof::            Special syntax for implementing `offsetof'.
  * __sync Builtins::     Legacy built-in functions for atomic memory access.
  * __atomic Builtins::   Atomic built-in functions with memory model.
  * Integer Overflow Builtins:: Built-in functions to perform arithmetics and
--- 24018,24035 ----
  * Function Prototypes:: Prototype declarations and old-style definitions.
  * C++ Comments::        C++ comments are recognized.
  * Dollar Signs::        Dollar sign is allowed in identifiers.
! * Character Escapes::   '\e' stands for the character <ESC>.
  * Alignment::           Inquiring about the alignment of a type or variable.
  * Inline::              Defining inline functions (as fast as macros).
  * Volatiles::           What constitutes an access to a volatile object.
  * Using Assembly Language with C:: Instructions and extensions for interfacing C with assembler.
! * Alternate Keywords::  '__const__', '__asm__', etc., for header files.
! * Incomplete Enums::    'enum foo;', with details to follow.
  * Function Names::      Printable strings which are the name of the current
                          function.
  * Return Address::      Getting the return or frame address of a function.
  * Vector Extensions::   Using vector instructions through built-in functions.
! * Offsetof::            Special syntax for implementing 'offsetof'.
  * __sync Builtins::     Legacy built-in functions for atomic memory access.
  * __atomic Builtins::   Atomic built-in functions with memory model.
  * Integer Overflow Builtins:: Built-in functions to perform arithmetics and
*************** extensions, accepted by GCC in C90 mode
*** 24162,24168 ****
  * Pragmas::             Pragmas accepted by GCC.
  * Unnamed Fields::      Unnamed struct/union fields within structs/unions.
  * Thread-Local::        Per-thread variables.
! * Binary constants::    Binary constants using the `0b' prefix.
  
  
  File: gcc.info,  Node: Statement Exprs,  Next: Local Labels,  Up: C Extensions
--- 24045,24051 ----
  * Pragmas::             Pragmas accepted by GCC.
  * Unnamed Fields::      Unnamed struct/union fields within structs/unions.
  * Thread-Local::        Per-thread variables.
! * Binary constants::    Binary constants using the '0b' prefix.
  
  
  File: gcc.info,  Node: Statement Exprs,  Next: Local Labels,  Up: C Extensions
*************** example:
*** 24184,24195 ****
          z; })
  
  is a valid (though slightly more complex than necessary) expression for
! the absolute value of `foo ()'.
  
   The last thing in the compound statement should be an expression
  followed by a semicolon; the value of this subexpression serves as the
  value of the entire construct.  (If you use some other kind of statement
! last within the braces, the construct has type `void', and thus
  effectively no value.)
  
   This feature is especially useful in making macro definitions "safe"
--- 24067,24078 ----
          z; })
  
  is a valid (though slightly more complex than necessary) expression for
! the absolute value of 'foo ()'.
  
   The last thing in the compound statement should be an expression
  followed by a semicolon; the value of this subexpression serves as the
  value of the entire construct.  (If you use some other kind of statement
! last within the braces, the construct has type 'void', and thus
  effectively no value.)
  
   This feature is especially useful in making macro definitions "safe"
*************** follows:
*** 24201,24207 ****
  
  But this definition computes either A or B twice, with bad results if
  the operand has side effects.  In GNU C, if you know the type of the
! operands (here taken as `int'), you can define the macro safely as
  follows:
  
       #define maxint(a,b) \
--- 24084,24090 ----
  
  But this definition computes either A or B twice, with bad results if
  the operand has side effects.  In GNU C, if you know the type of the
! operands (here taken as 'int'), you can define the macro safely as
  follows:
  
       #define maxint(a,b) \
*************** the value of an enumeration constant, th
*** 24212,24238 ****
  initial value of a static variable.
  
   If you don't know the type of the operand, you can still do this, but
! you must use `typeof' or `__auto_type' (*note Typeof::).
  
   In G++, the result value of a statement expression undergoes array and
  function pointer decay, and is returned by value to the enclosing
! expression.  For instance, if `A' is a class, then
  
               A a;
  
               ({a;}).Foo ()
  
! constructs a temporary `A' object to hold the result of the statement
! expression, and that is used to invoke `Foo'.  Therefore the `this'
! pointer observed by `Foo' is not the address of `a'.
  
   In a statement expression, any temporaries created within a statement
! are destroyed at that statement's end.  This makes statement
! expressions inside macros slightly different from function calls.  In
! the latter case temporaries introduced during argument evaluation are
! destroyed at the end of the statement that includes the function call.
! In the statement expression case they are destroyed during the
! statement expression.  For instance,
  
       #define macro(a)  ({__typeof__(a) b = (a); b + 3; })
       template<typename T> T function(T a) { T b = a; return b + 3; }
--- 24095,24121 ----
  initial value of a static variable.
  
   If you don't know the type of the operand, you can still do this, but
! you must use 'typeof' or '__auto_type' (*note Typeof::).
  
   In G++, the result value of a statement expression undergoes array and
  function pointer decay, and is returned by value to the enclosing
! expression.  For instance, if 'A' is a class, then
  
               A a;
  
               ({a;}).Foo ()
  
! constructs a temporary 'A' object to hold the result of the statement
! expression, and that is used to invoke 'Foo'.  Therefore the 'this'
! pointer observed by 'Foo' is not the address of 'a'.
  
   In a statement expression, any temporaries created within a statement
! are destroyed at that statement's end.  This makes statement expressions
! inside macros slightly different from function calls.  In the latter
! case temporaries introduced during argument evaluation are destroyed at
! the end of the statement that includes the function call.  In the
! statement expression case they are destroyed during the statement
! expression.  For instance,
  
       #define macro(a)  ({__typeof__(a) b = (a); b + 3; })
       template<typename T> T function(T a) { T b = a; return b + 3; }
*************** statement expression.  For instance,
*** 24243,24251 ****
         function (X ());
       }
  
! has different places where temporaries are destroyed.  For the `macro'
! case, the temporary `X' is destroyed just after the initialization of
! `b'.  In the `function' case that temporary is destroyed when the
  function returns.
  
   These considerations mean that it is probably a bad idea to use
--- 24126,24134 ----
         function (X ());
       }
  
! has different places where temporaries are destroyed.  For the 'macro'
! case, the temporary 'X' is destroyed just after the initialization of
! 'b'.  In the 'function' case that temporary is destroyed when the
  function returns.
  
   These considerations mean that it is probably a bad idea to use
*************** work with C++.  (Note that some versions
*** 24254,24263 ****
  header files using statement expressions that lead to precisely this
  bug.)
  
!  Jumping into a statement expression with `goto' or using a `switch'
! statement outside the statement expression with a `case' or `default'
  label inside the statement expression is not permitted.  Jumping into a
! statement expression with a computed `goto' (*note Labels as Values::)
  has undefined behavior.  Jumping out of a statement expression is
  permitted, but if the statement expression is part of a larger
  expression then it is unspecified which other subexpressions of that
--- 24137,24146 ----
  header files using statement expressions that lead to precisely this
  bug.)
  
!  Jumping into a statement expression with 'goto' or using a 'switch'
! statement outside the statement expression with a 'case' or 'default'
  label inside the statement expression is not permitted.  Jumping into a
! statement expression with a computed 'goto' (*note Labels as Values::)
  has undefined behavior.  Jumping out of a statement expression is
  permitted, but if the statement expression is part of a larger
  expression then it is unspecified which other subexpressions of that
*************** evaluation of other parts of the contain
*** 24269,24277 ****
  
         foo (), (({ bar1 (); goto a; 0; }) + bar2 ()), baz();
  
! calls `foo' and `bar1' and does not call `baz' but may or may not call
! `bar2'.  If `bar2' is called, it is called after `foo' and before
! `bar1'.
  
  
  File: gcc.info,  Node: Local Labels,  Next: Labels as Values,  Prev: Statement Exprs,  Up: C Extensions
--- 24152,24160 ----
  
         foo (), (({ bar1 (); goto a; 0; }) + bar2 ()), baz();
  
! calls 'foo' and 'bar1' and does not call 'baz' but may or may not call
! 'bar2'.  If 'bar2' is called, it is called after 'foo' and before
! 'bar1'.
  
  
  File: gcc.info,  Node: Local Labels,  Next: Labels as Values,  Prev: Statement Exprs,  Up: C Extensions
*************** File: gcc.info,  Node: Local Labels,  Ne
*** 24281,24287 ****
  
  GCC allows you to declare "local labels" in any nested block scope.  A
  local label is just like an ordinary label, but you can only reference
! it (with a `goto' statement, or by taking its address) within the block
  in which it is declared.
  
   A local label declaration looks like this:
--- 24164,24170 ----
  
  GCC allows you to declare "local labels" in any nested block scope.  A
  local label is just like an ordinary label, but you can only reference
! it (with a 'goto' statement, or by taking its address) within the block
  in which it is declared.
  
   A local label declaration looks like this:
*************** or
*** 24295,24306 ****
   Local label declarations must come at the beginning of the block,
  before any ordinary declarations or statements.
  
!  The label declaration defines the label _name_, but does not define
! the label itself.  You must do this in the usual way, with `LABEL:',
! within the statements of the statement expression.
  
   The local label feature is useful for complex macros.  If a macro
! contains nested loops, a `goto' can be useful for breaking out of them.
  However, an ordinary label whose scope is the whole function cannot be
  used: if the macro can be expanded several times in one function, the
  label is multiply defined in that function.  A local label avoids this
--- 24178,24189 ----
   Local label declarations must come at the beginning of the block,
  before any ordinary declarations or statements.
  
!  The label declaration defines the label _name_, but does not define the
! label itself.  You must do this in the usual way, with 'LABEL:', within
! the statements of the statement expression.
  
   The local label feature is useful for complex macros.  If a macro
! contains nested loops, a 'goto' can be useful for breaking out of them.
  However, an ordinary label whose scope is the whole function cannot be
  used: if the macro can be expanded several times in one function, the
  label is multiply defined in that function.  A local label avoids this
*************** File: gcc.info,  Node: Labels as Values,
*** 24349,24369 ****
  6.3 Labels as Values
  ====================
  
! You can get the address of a label defined in the current function (or
! a containing function) with the unary operator `&&'.  The value has
! type `void *'.  This value is a constant and can be used wherever a
! constant of that type is valid.  For example:
  
       void *ptr;
       /* ... */
       ptr = &&foo;
  
   To use these values, you need to be able to jump to one.  This is done
! with the computed goto statement(1), `goto *EXP;'.  For example,
  
       goto *ptr;
  
! Any expression of type `void *' is allowed.
  
   One way of using these constants is in initializing a static array that
  serves as a jump table:
--- 24232,24252 ----
  6.3 Labels as Values
  ====================
  
! You can get the address of a label defined in the current function (or a
! containing function) with the unary operator '&&'.  The value has type
! 'void *'.  This value is a constant and can be used wherever a constant
! of that type is valid.  For example:
  
       void *ptr;
       /* ... */
       ptr = &&foo;
  
   To use these values, you need to be able to jump to one.  This is done
! with the computed goto statement(1), 'goto *EXP;'.  For example,
  
       goto *ptr;
  
! Any expression of type 'void *' is allowed.
  
   One way of using these constants is in initializing a static array that
  serves as a jump table:
*************** Note that this does not check whether th
*** 24378,24390 ****
  indexing in C never does that.
  
   Such an array of label values serves a purpose much like that of the
! `switch' statement.  The `switch' statement is cleaner, so use that
! rather than an array unless the problem does not fit a `switch'
  statement very well.
  
   Another use of label values is in an interpreter for threaded code.
! The labels within the interpreter function can be stored in the
! threaded code for super-fast dispatching.
  
   You may not use this mechanism to jump to code in a different function.
  If you do that, totally unpredictable things happen.  The best way to
--- 24261,24273 ----
  indexing in C never does that.
  
   Such an array of label values serves a purpose much like that of the
! 'switch' statement.  The 'switch' statement is cleaner, so use that
! rather than an array unless the problem does not fit a 'switch'
  statement very well.
  
   Another use of label values is in an interpreter for threaded code.
! The labels within the interpreter function can be stored in the threaded
! code for super-fast dispatching.
  
   You may not use this mechanism to jump to code in a different function.
  If you do that, totally unpredictable things happen.  The best way to
*************** allows the data to be read-only.  This a
*** 24403,24418 ****
  differences is not supported for the AVR target, please use the first
  approach for AVR programs.
  
!  The `&&foo' expressions for the same label might have different values
! if the containing function is inlined or cloned.  If a program relies
! on them being always the same,
! `__attribute__((__noinline__,__noclone__))' should be used to prevent
! inlining and cloning.  If `&&foo' is used in a static variable
! initializer, inlining and cloning is forbidden.
  
!  ---------- Footnotes ----------
  
!  (1) The analogous feature in Fortran is called an assigned goto, but
  that name seems inappropriate in C, where one can do more than simply
  store label addresses in label variables.
  
--- 24286,24300 ----
  differences is not supported for the AVR target, please use the first
  approach for AVR programs.
  
!  The '&&foo' expressions for the same label might have different values
! if the containing function is inlined or cloned.  If a program relies on
! them being always the same, '__attribute__((__noinline__,__noclone__))'
! should be used to prevent inlining and cloning.  If '&&foo' is used in a
! static variable initializer, inlining and cloning is forbidden.
  
!    ---------- Footnotes ----------
  
!    (1) The analogous feature in Fortran is called an assigned goto, but
  that name seems inappropriate in C, where one can do more than simply
  store label addresses in label variables.
  
*************** Nested functions are supported as an ext
*** 24427,24433 ****
  supported by GNU C++.
  
   The nested function's name is local to the block where it is defined.
! For example, here we define a nested function named `square', and call
  it twice:
  
       foo (double a, double b)
--- 24309,24315 ----
  supported by GNU C++.
  
   The nested function's name is local to the block where it is defined.
! For example, here we define a nested function named 'square', and call
  it twice:
  
       foo (double a, double b)
*************** it twice:
*** 24440,24446 ****
   The nested function can access all the variables of the containing
  function that are visible at the point of its definition.  This is
  called "lexical scoping".  For example, here we show a nested function
! which uses an inherited variable named `offset':
  
       bar (int *array, int offset, int size)
       {
--- 24322,24328 ----
   The nested function can access all the variables of the containing
  function that are visible at the point of its definition.  This is
  called "lexical scoping".  For example, here we show a nested function
! which uses an inherited variable named 'offset':
  
       bar (int *array, int offset, int size)
       {
*************** function:
*** 24468,24496 ****
         intermediate (store, size);
       }
  
!  Here, the function `intermediate' receives the address of `store' as
! an argument.  If `intermediate' calls `store', the arguments given to
! `store' are used to store into `array'.  But this technique works only
! so long as the containing function (`hack', in this example) does not
  exit.
  
   If you try to call the nested function through its address after the
! containing function exits, all hell breaks loose.  If you try to call
! it after a containing scope level exits, and if it refers to some of
! the variables that are no longer in scope, you may be lucky, but it's
! not wise to take the risk.  If, however, the nested function does not
! refer to anything that has gone out of scope, you should be safe.
  
   GCC implements taking the address of a nested function using a
  technique called "trampolines".  This technique was described in
! `Lexical Closures for C++' (Thomas M. Breuel, USENIX C++ Conference
  Proceedings, October 17-21, 1988).
  
   A nested function can jump to a label inherited from a containing
  function, provided the label is explicitly declared in the containing
  function (*note Local Labels::).  Such a jump returns instantly to the
! containing function, exiting the nested function that did the `goto'
! and any intermediate functions as well.  Here is an example:
  
       bar (int *array, int offset, int size)
       {
--- 24350,24378 ----
         intermediate (store, size);
       }
  
!  Here, the function 'intermediate' receives the address of 'store' as an
! argument.  If 'intermediate' calls 'store', the arguments given to
! 'store' are used to store into 'array'.  But this technique works only
! so long as the containing function ('hack', in this example) does not
  exit.
  
   If you try to call the nested function through its address after the
! containing function exits, all hell breaks loose.  If you try to call it
! after a containing scope level exits, and if it refers to some of the
! variables that are no longer in scope, you may be lucky, but it's not
! wise to take the risk.  If, however, the nested function does not refer
! to anything that has gone out of scope, you should be safe.
  
   GCC implements taking the address of a nested function using a
  technique called "trampolines".  This technique was described in
! 'Lexical Closures for C++' (Thomas M. Breuel, USENIX C++ Conference
  Proceedings, October 17-21, 1988).
  
   A nested function can jump to a label inherited from a containing
  function, provided the label is explicitly declared in the containing
  function (*note Local Labels::).  Such a jump returns instantly to the
! containing function, exiting the nested function that did the 'goto' and
! any intermediate functions as well.  Here is an example:
  
       bar (int *array, int offset, int size)
       {
*************** and any intermediate functions as well.
*** 24508,24522 ****
         /* ... */
         return 0;
  
!       /* Control comes here from `access'
           if it detects an error.  */
        failure:
         return -1;
       }
  
!  A nested function always has no linkage.  Declaring one with `extern'
! or `static' is erroneous.  If you need to declare the nested function
! before its definition, use `auto' (which is otherwise meaningless for
  function declarations).
  
       bar (int *array, int offset, int size)
--- 24390,24404 ----
         /* ... */
         return 0;
  
!       /* Control comes here from 'access'
           if it detects an error.  */
        failure:
         return -1;
       }
  
!  A nested function always has no linkage.  Declaring one with 'extern'
! or 'static' is erroneous.  If you need to declare the nested function
! before its definition, use 'auto' (which is otherwise meaningless for
  function declarations).
  
       bar (int *array, int offset, int size)
*************** acting as mere forwarders for their argu
*** 24554,24561 ****
  
   -- Built-in Function: void * __builtin_apply_args ()
       This built-in function returns a pointer to data describing how to
!      perform a call with the same arguments as are passed to the
!      current function.
  
       The function saves the arg pointer register, structure value
       address, and all registers that might be used to pass arguments to
--- 24436,24443 ----
  
   -- Built-in Function: void * __builtin_apply_args ()
       This built-in function returns a pointer to data describing how to
!      perform a call with the same arguments as are passed to the current
!      function.
  
       The function saves the arg pointer register, structure value
       address, and all registers that might be used to pass arguments to
*************** acting as mere forwarders for their argu
*** 24568,24574 ****
       parameters described by ARGUMENTS and SIZE.
  
       The value of ARGUMENTS should be the value returned by
!      `__builtin_apply_args'.  The argument SIZE specifies the size of
       the stack argument data, in bytes.
  
       This function returns a pointer to data describing how to return
--- 24450,24456 ----
       parameters described by ARGUMENTS and SIZE.
  
       The value of ARGUMENTS should be the value returned by
!      '__builtin_apply_args'.  The argument SIZE specifies the size of
       the stack argument data, in bytes.
  
       This function returns a pointer to data describing how to return
*************** acting as mere forwarders for their argu
*** 24576,24600 ****
       block of memory allocated on the stack.
  
       It is not always simple to compute the proper value for SIZE.  The
!      value is used by `__builtin_apply' to compute the amount of data
       that should be pushed on the stack and copied from the incoming
       argument area.
  
   -- Built-in Function: void __builtin_return (void *RESULT)
       This built-in function returns the value described by RESULT from
       the containing function.  You should specify, for RESULT, a value
!      returned by `__builtin_apply'.
  
!  -- Built-in Function:  __builtin_va_arg_pack ()
       This built-in function represents all anonymous arguments of an
       inline function.  It can be used only in inline functions that are
       always inlined, never compiled as a separate function, such as
!      those using `__attribute__ ((__always_inline__))' or
!      `__attribute__ ((__gnu_inline__))' extern inline functions.  It
!      must be only passed as last argument to some other function with
!      variable arguments.  This is useful for writing small wrapper
!      inlines for variable argument functions, when using preprocessor
!      macros is undesirable.  For example:
            extern int myprintf (FILE *f, const char *format, ...);
            extern inline __attribute__ ((__gnu_inline__)) int
            myprintf (FILE *f, const char *format, ...)
--- 24458,24482 ----
       block of memory allocated on the stack.
  
       It is not always simple to compute the proper value for SIZE.  The
!      value is used by '__builtin_apply' to compute the amount of data
       that should be pushed on the stack and copied from the incoming
       argument area.
  
   -- Built-in Function: void __builtin_return (void *RESULT)
       This built-in function returns the value described by RESULT from
       the containing function.  You should specify, for RESULT, a value
!      returned by '__builtin_apply'.
  
!  -- Built-in Function: __builtin_va_arg_pack ()
       This built-in function represents all anonymous arguments of an
       inline function.  It can be used only in inline functions that are
       always inlined, never compiled as a separate function, such as
!      those using '__attribute__ ((__always_inline__))' or '__attribute__
!      ((__gnu_inline__))' extern inline functions.  It must be only
!      passed as last argument to some other function with variable
!      arguments.  This is useful for writing small wrapper inlines for
!      variable argument functions, when using preprocessor macros is
!      undesirable.  For example:
            extern int myprintf (FILE *f, const char *format, ...);
            extern inline __attribute__ ((__gnu_inline__)) int
            myprintf (FILE *f, const char *format, ...)
*************** acting as mere forwarders for their argu
*** 24612,24621 ****
       This built-in function returns the number of anonymous arguments of
       an inline function.  It can be used only in inline functions that
       are always inlined, never compiled as a separate function, such as
!      those using `__attribute__ ((__always_inline__))' or
!      `__attribute__ ((__gnu_inline__))' extern inline functions.  For
!      example following does link- or run-time checking of open
!      arguments for optimized code:
            #ifdef __OPTIMIZE__
            extern inline __attribute__((__gnu_inline__)) int
            myopen (const char *path, int oflag, ...)
--- 24494,24503 ----
       This built-in function returns the number of anonymous arguments of
       an inline function.  It can be used only in inline functions that
       are always inlined, never compiled as a separate function, such as
!      those using '__attribute__ ((__always_inline__))' or '__attribute__
!      ((__gnu_inline__))' extern inline functions.  For example following
!      does link- or run-time checking of open arguments for optimized
!      code:
            #ifdef __OPTIMIZE__
            extern inline __attribute__((__gnu_inline__)) int
            myopen (const char *path, int oflag, ...)
*************** acting as mere forwarders for their argu
*** 24643,24682 ****
  
  File: gcc.info,  Node: Typeof,  Next: Conditionals,  Prev: Constructing Calls,  Up: C Extensions
  
! 6.6 Referring to a Type with `typeof'
  =====================================
  
! Another way to refer to the type of an expression is with `typeof'.
! The syntax of using of this keyword looks like `sizeof', but the
! construct acts semantically like a type name defined with `typedef'.
  
!  There are two ways of writing the argument to `typeof': with an
  expression or with a type.  Here is an example with an expression:
  
       typeof (x[0](1))
  
! This assumes that `x' is an array of pointers to functions; the type
  described is that of the values of the functions.
  
   Here is an example with a typename as the argument:
  
       typeof (int *)
  
! Here the type described is that of pointers to `int'.
  
   If you are writing a header file that must work when included in ISO C
! programs, write `__typeof__' instead of `typeof'.  *Note Alternate
  Keywords::.
  
!  A `typeof' construct can be used anywhere a typedef name can be used.
  For example, you can use it in a declaration, in a cast, or inside of
! `sizeof' or `typeof'.
  
!  The operand of `typeof' is evaluated for its side effects if and only
  if it is an expression of variably modified type or the name of such a
  type.
  
!  `typeof' is often useful in conjunction with statement expressions
  (*note Statement Exprs::).  Here is how the two together can be used to
  define a safe "maximum" macro which operates on any arithmetic type and
  evaluates each of its arguments exactly once:
--- 24525,24564 ----
  
  File: gcc.info,  Node: Typeof,  Next: Conditionals,  Prev: Constructing Calls,  Up: C Extensions
  
! 6.6 Referring to a Type with 'typeof'
  =====================================
  
! Another way to refer to the type of an expression is with 'typeof'.  The
! syntax of using of this keyword looks like 'sizeof', but the construct
! acts semantically like a type name defined with 'typedef'.
  
!  There are two ways of writing the argument to 'typeof': with an
  expression or with a type.  Here is an example with an expression:
  
       typeof (x[0](1))
  
! This assumes that 'x' is an array of pointers to functions; the type
  described is that of the values of the functions.
  
   Here is an example with a typename as the argument:
  
       typeof (int *)
  
! Here the type described is that of pointers to 'int'.
  
   If you are writing a header file that must work when included in ISO C
! programs, write '__typeof__' instead of 'typeof'.  *Note Alternate
  Keywords::.
  
!  A 'typeof' construct can be used anywhere a typedef name can be used.
  For example, you can use it in a declaration, in a cast, or inside of
! 'sizeof' or 'typeof'.
  
!  The operand of 'typeof' is evaluated for its side effects if and only
  if it is an expression of variably modified type or the name of such a
  type.
  
!  'typeof' is often useful in conjunction with statement expressions
  (*note Statement Exprs::).  Here is how the two together can be used to
  define a safe "maximum" macro which operates on any arithmetic type and
  evaluates each of its arguments exactly once:
*************** evaluates each of its arguments exactly
*** 24688,24709 ****
  
   The reason for using names that start with underscores for the local
  variables is to avoid conflicts with variable names that occur within
! the expressions that are substituted for `a' and `b'.  Eventually we
  hope to design a new form of declaration syntax that allows you to
! declare variables whose scopes start only after their initializers;
! this will be a more reliable way to prevent such conflicts.
  
! Some more examples of the use of `typeof':
  
!    * This declares `y' with the type of what `x' points to.
  
            typeof (*x) y;
  
!    * This declares `y' as an array of such values.
  
            typeof (*x) y[4];
  
!    * This declares `y' as an array of pointers to characters:
  
            typeof (typeof (char *)[4]) y;
  
--- 24570,24591 ----
  
   The reason for using names that start with underscores for the local
  variables is to avoid conflicts with variable names that occur within
! the expressions that are substituted for 'a' and 'b'.  Eventually we
  hope to design a new form of declaration syntax that allows you to
! declare variables whose scopes start only after their initializers; this
! will be a more reliable way to prevent such conflicts.
  
! Some more examples of the use of 'typeof':
  
!    * This declares 'y' with the type of what 'x' points to.
  
            typeof (*x) y;
  
!    * This declares 'y' as an array of such values.
  
            typeof (*x) y[4];
  
!    * This declares 'y' as an array of pointers to characters:
  
            typeof (typeof (char *)[4]) y;
  
*************** Some more examples of the use of `typeof
*** 24711,24717 ****
  
            char *y[4];
  
!      To see the meaning of the declaration using `typeof', and why it
       might be a useful way to write, rewrite it with these macros:
  
            #define pointer(T)  typeof(T *)
--- 24593,24599 ----
  
            char *y[4];
  
!      To see the meaning of the declaration using 'typeof', and why it
       might be a useful way to write, rewrite it with these macros:
  
            #define pointer(T)  typeof(T *)
*************** Some more examples of the use of `typeof
*** 24721,24752 ****
  
            array (pointer (char), 4) y;
  
!      Thus, `array (pointer (char), 4)' is the type of arrays of 4
!      pointers to `char'.
  
   In GNU C, but not GNU C++, you may also declare the type of a variable
! as `__auto_type'.  In that case, the declaration must declare only one
  variable, whose declarator must just be an identifier, the declaration
  must be initialized, and the type of the variable is determined by the
  initializer; the name of the variable is not in scope until after the
! initializer.  (In C++, you should use C++11 `auto' for this purpose.)
! Using `__auto_type', the "maximum" macro above could be written as:
  
       #define max(a,b) \
         ({ __auto_type _a = (a); \
             __auto_type _b = (b); \
           _a > _b ? _a : _b; })
  
!  Using `__auto_type' instead of `typeof' has two advantages:
  
     * Each argument to the macro appears only once in the expansion of
       the macro.  This prevents the size of the macro expansion growing
!      exponentially when calls to such macros are nested inside
!      arguments of such macros.
  
     * If the argument to the macro has variably modified type, it is
!      evaluated only once when using `__auto_type', but twice if
!      `typeof' is used.
  
  
  File: gcc.info,  Node: Conditionals,  Next: __int128,  Prev: Typeof,  Up: C Extensions
--- 24603,24634 ----
  
            array (pointer (char), 4) y;
  
!      Thus, 'array (pointer (char), 4)' is the type of arrays of 4
!      pointers to 'char'.
  
   In GNU C, but not GNU C++, you may also declare the type of a variable
! as '__auto_type'.  In that case, the declaration must declare only one
  variable, whose declarator must just be an identifier, the declaration
  must be initialized, and the type of the variable is determined by the
  initializer; the name of the variable is not in scope until after the
! initializer.  (In C++, you should use C++11 'auto' for this purpose.)
! Using '__auto_type', the "maximum" macro above could be written as:
  
       #define max(a,b) \
         ({ __auto_type _a = (a); \
             __auto_type _b = (b); \
           _a > _b ? _a : _b; })
  
!  Using '__auto_type' instead of 'typeof' has two advantages:
  
     * Each argument to the macro appears only once in the expansion of
       the macro.  This prevents the size of the macro expansion growing
!      exponentially when calls to such macros are nested inside arguments
!      of such macros.
  
     * If the argument to the macro has variably modified type, it is
!      evaluated only once when using '__auto_type', but twice if 'typeof'
!      is used.
  
  
  File: gcc.info,  Node: Conditionals,  Next: __int128,  Prev: Typeof,  Up: C Extensions
*************** expression.
*** 24762,24768 ****
  
       x ? : y
  
! has the value of `x' if that is nonzero; otherwise, the value of `y'.
  
   This example is perfectly equivalent to
  
--- 24644,24650 ----
  
       x ? : y
  
! has the value of 'x' if that is nonzero; otherwise, the value of 'y'.
  
   This example is perfectly equivalent to
  
*************** has the value of `x' if that is nonzero;
*** 24771,24779 ****
  In this simple case, the ability to omit the middle operand is not
  especially useful.  When it becomes useful is when the first operand
  does, or may (if it is a macro argument), contain a side effect.  Then
! repeating the operand in the middle would perform the side effect
! twice.  Omitting the middle operand uses the value already computed
! without the undesirable effects of recomputing it.
  
  
  File: gcc.info,  Node: __int128,  Next: Long Long,  Prev: Conditionals,  Up: C Extensions
--- 24653,24661 ----
  In this simple case, the ability to omit the middle operand is not
  especially useful.  When it becomes useful is when the first operand
  does, or may (if it is a macro argument), contain a side effect.  Then
! repeating the operand in the middle would perform the side effect twice.
! Omitting the middle operand uses the value already computed without the
! undesirable effects of recomputing it.
  
  
  File: gcc.info,  Node: __int128,  Next: Long Long,  Prev: Conditionals,  Up: C Extensions
*************** File: gcc.info,  Node: __int128,  Next:
*** 24781,24792 ****
  6.8 128-bit Integers
  ====================
  
! As an extension the integer scalar type `__int128' is supported for
! targets which have an integer mode wide enough to hold 128 bits.
! Simply write `__int128' for a signed 128-bit integer, or `unsigned
! __int128' for an unsigned 128-bit integer.  There is no support in GCC
! for expressing an integer constant of type `__int128' for targets with
! `long long' integer less than 128 bits wide.
  
  
  File: gcc.info,  Node: Long Long,  Next: Complex,  Prev: __int128,  Up: C Extensions
--- 24663,24674 ----
  6.8 128-bit Integers
  ====================
  
! As an extension the integer scalar type '__int128' is supported for
! targets which have an integer mode wide enough to hold 128 bits.  Simply
! write '__int128' for a signed 128-bit integer, or 'unsigned __int128'
! for an unsigned 128-bit integer.  There is no support in GCC for
! expressing an integer constant of type '__int128' for targets with 'long
! long' integer less than 128 bits wide.
  
  
  File: gcc.info,  Node: Long Long,  Next: Complex,  Prev: __int128,  Up: C Extensions
*************** File: gcc.info,  Node: Long Long,  Next:
*** 24796,24822 ****
  
  ISO C99 supports data types for integers that are at least 64 bits wide,
  and as an extension GCC supports them in C90 mode and in C++.  Simply
! write `long long int' for a signed integer, or `unsigned long long int'
! for an unsigned integer.  To make an integer constant of type `long
! long int', add the suffix `LL' to the integer.  To make an integer
! constant of type `unsigned long long int', add the suffix `ULL' to the
! integer.
  
   You can use these types in arithmetic like any other integer types.
! Addition, subtraction, and bitwise boolean operations on these types
! are open-coded on all types of machines.  Multiplication is open-coded
! if the machine supports a fullword-to-doubleword widening multiply
  instruction.  Division and shifts are open-coded only on machines that
  provide special support.  The operations that are not open-coded use
  special library routines that come with GCC.
  
!  There may be pitfalls when you use `long long' types for function
! arguments without function prototypes.  If a function expects type
! `int' for its argument, and you pass a value of type `long long int',
  confusion results because the caller and the subroutine disagree about
! the number of bytes for the argument.  Likewise, if the function
! expects `long long int' and you pass `int'.  The best way to avoid such
! problems is to use prototypes.
  
  
  File: gcc.info,  Node: Complex,  Next: Floating Types,  Prev: Long Long,  Up: C Extensions
--- 24678,24703 ----
  
  ISO C99 supports data types for integers that are at least 64 bits wide,
  and as an extension GCC supports them in C90 mode and in C++.  Simply
! write 'long long int' for a signed integer, or 'unsigned long long int'
! for an unsigned integer.  To make an integer constant of type 'long long
! int', add the suffix 'LL' to the integer.  To make an integer constant
! of type 'unsigned long long int', add the suffix 'ULL' to the integer.
  
   You can use these types in arithmetic like any other integer types.
! Addition, subtraction, and bitwise boolean operations on these types are
! open-coded on all types of machines.  Multiplication is open-coded if
! the machine supports a fullword-to-doubleword widening multiply
  instruction.  Division and shifts are open-coded only on machines that
  provide special support.  The operations that are not open-coded use
  special library routines that come with GCC.
  
!  There may be pitfalls when you use 'long long' types for function
! arguments without function prototypes.  If a function expects type 'int'
! for its argument, and you pass a value of type 'long long int',
  confusion results because the caller and the subroutine disagree about
! the number of bytes for the argument.  Likewise, if the function expects
! 'long long int' and you pass 'int'.  The best way to avoid such problems
! is to use prototypes.
  
  
  File: gcc.info,  Node: Complex,  Next: Floating Types,  Prev: Long Long,  Up: C Extensions
*************** File: gcc.info,  Node: Complex,  Next: F
*** 24825,24861 ****
  ====================
  
  ISO C99 supports complex floating data types, and as an extension GCC
! supports them in C90 mode and in C++.  GCC also supports complex
! integer data types which are not part of ISO C99.  You can declare
! complex types using the keyword `_Complex'.  As an extension, the older
! GNU keyword `__complex__' is also supported.
  
!  For example, `_Complex double x;' declares `x' as a variable whose
! real part and imaginary part are both of type `double'.  `_Complex
! short int y;' declares `y' to have real and imaginary parts of type
! `short int'; this is not likely to be useful, but it shows that the set
! of complex types is complete.
  
!  To write a constant with a complex data type, use the suffix `i' or
! `j' (either one; they are equivalent).  For example, `2.5fi' has type
! `_Complex float' and `3i' has type `_Complex int'.  Such a constant
  always has a pure imaginary value, but you can form any complex value
  you like by adding one to a real constant.  This is a GNU extension; if
  you have an ISO C99 conforming C library (such as the GNU C Library),
  and want to construct complex constants of floating type, you should
! include `<complex.h>' and use the macros `I' or `_Complex_I' instead.
  
   To extract the real part of a complex-valued expression EXP, write
! `__real__ EXP'.  Likewise, use `__imag__' to extract the imaginary
! part.  This is a GNU extension; for values of floating type, you should
! use the ISO C99 functions `crealf', `creal', `creall', `cimagf',
! `cimag' and `cimagl', declared in `<complex.h>' and also provided as
! built-in functions by GCC.
  
!  The operator `~' performs complex conjugation when used on a value
! with a complex type.  This is a GNU extension; for values of floating
! type, you should use the ISO C99 functions `conjf', `conj' and `conjl',
! declared in `<complex.h>' and also provided as built-in functions by
  GCC.
  
   GCC can allocate complex automatic variables in a noncontiguous
--- 24706,24742 ----
  ====================
  
  ISO C99 supports complex floating data types, and as an extension GCC
! supports them in C90 mode and in C++.  GCC also supports complex integer
! data types which are not part of ISO C99.  You can declare complex types
! using the keyword '_Complex'.  As an extension, the older GNU keyword
! '__complex__' is also supported.
  
!  For example, '_Complex double x;' declares 'x' as a variable whose real
! part and imaginary part are both of type 'double'.  '_Complex short int
! y;' declares 'y' to have real and imaginary parts of type 'short int';
! this is not likely to be useful, but it shows that the set of complex
! types is complete.
  
!  To write a constant with a complex data type, use the suffix 'i' or 'j'
! (either one; they are equivalent).  For example, '2.5fi' has type
! '_Complex float' and '3i' has type '_Complex int'.  Such a constant
  always has a pure imaginary value, but you can form any complex value
  you like by adding one to a real constant.  This is a GNU extension; if
  you have an ISO C99 conforming C library (such as the GNU C Library),
  and want to construct complex constants of floating type, you should
! include '<complex.h>' and use the macros 'I' or '_Complex_I' instead.
  
   To extract the real part of a complex-valued expression EXP, write
! '__real__ EXP'.  Likewise, use '__imag__' to extract the imaginary part.
! This is a GNU extension; for values of floating type, you should use the
! ISO C99 functions 'crealf', 'creal', 'creall', 'cimagf', 'cimag' and
! 'cimagl', declared in '<complex.h>' and also provided as built-in
! functions by GCC.
  
!  The operator '~' performs complex conjugation when used on a value with
! a complex type.  This is a GNU extension; for values of floating type,
! you should use the ISO C99 functions 'conjf', 'conj' and 'conjl',
! declared in '<complex.h>' and also provided as built-in functions by
  GCC.
  
   GCC can allocate complex automatic variables in a noncontiguous
*************** the imaginary part is on the stack (or v
*** 24864,24871 ****
  debug info format can represent this, so use of DWARF is recommended.
  If you are using the stabs debug info format, GCC describes a
  noncontiguous complex variable as if it were two separate variables of
! noncomplex type.  If the variable's actual name is `foo', the two
! fictitious variables are named `foo$real' and `foo$imag'.  You can
  examine and set these two fictitious variables with your debugger.
  
  
--- 24745,24752 ----
  debug info format can represent this, so use of DWARF is recommended.
  If you are using the stabs debug info format, GCC describes a
  noncontiguous complex variable as if it were two separate variables of
! noncomplex type.  If the variable's actual name is 'foo', the two
! fictitious variables are named 'foo$real' and 'foo$imag'.  You can
  examine and set these two fictitious variables with your debugger.
  
  
*************** File: gcc.info,  Node: Floating Types,
*** 24874,24916 ****
  6.11 Additional Floating Types
  ==============================
  
! As an extension, GNU C supports additional floating types, `__float80'
! and `__float128' to support 80-bit (`XFmode') and 128-bit (`TFmode')
  floating types.  Support for additional types includes the arithmetic
  operators: add, subtract, multiply, divide; unary arithmetic operators;
  relational operators; equality operators; and conversions to and from
! integer and other floating types.  Use a suffix `w' or `W' in a literal
! constant of type `__float80' or type `__ibm128'.  Use a suffix `q' or
! `Q' for `_float128'.
  
   On the i386, x86_64, IA-64, and HP-UX targets, you can declare complex
! types using the corresponding internal complex type, `XCmode' for
! `__float80' type and `TCmode' for `__float128' type:
  
       typedef _Complex float __attribute__((mode(TC))) _Complex128;
       typedef _Complex float __attribute__((mode(XC))) _Complex80;
  
!  In order to use `__float128' and `__ibm128' on PowerPC Linux systems,
! you must use the `-mfloat128'. It is expected in future versions of GCC
! that `__float128' will be enabled automatically.  In addition, there
! are currently problems in using the complex `__float128' type.  When
! these problems are fixed, you would use the following syntax to declare
! `_Complex128' to be a complex `__float128' type:
  
   On the PowerPC Linux VSX targets, you can declare complex types using
! the corresponding internal complex type, `KCmode' for `__float128' type
! and `ICmode' for `__ibm128' type:
  
       typedef _Complex float __attribute__((mode(KC))) _Complex_float128;
       typedef _Complex float __attribute__((mode(IC))) _Complex_ibm128;
  
!  Not all targets support additional floating-point types.  `__float80'
! and `__float128' types are supported on x86 and IA-64 targets.  The
! `__float128' type is supported on hppa HP-UX.  The `__float128' type is
  supported on PowerPC 64-bit Linux systems by default if the vector
  scalar instruction set (VSX) is enabled.
  
!  On the PowerPC, `__ibm128' provides access to the IBM extended double
  format, and it is intended to be used by the library functions that
  handle conversions if/when long double is changed to be IEEE 128-bit
  floating point.
--- 24755,24797 ----
  6.11 Additional Floating Types
  ==============================
  
! As an extension, GNU C supports additional floating types, '__float80'
! and '__float128' to support 80-bit ('XFmode') and 128-bit ('TFmode')
  floating types.  Support for additional types includes the arithmetic
  operators: add, subtract, multiply, divide; unary arithmetic operators;
  relational operators; equality operators; and conversions to and from
! integer and other floating types.  Use a suffix 'w' or 'W' in a literal
! constant of type '__float80' or type '__ibm128'.  Use a suffix 'q' or
! 'Q' for '_float128'.
  
   On the i386, x86_64, IA-64, and HP-UX targets, you can declare complex
! types using the corresponding internal complex type, 'XCmode' for
! '__float80' type and 'TCmode' for '__float128' type:
  
       typedef _Complex float __attribute__((mode(TC))) _Complex128;
       typedef _Complex float __attribute__((mode(XC))) _Complex80;
  
!  In order to use '__float128' and '__ibm128' on PowerPC Linux systems,
! you must use the '-mfloat128'.  It is expected in future versions of GCC
! that '__float128' will be enabled automatically.  In addition, there are
! currently problems in using the complex '__float128' type.  When these
! problems are fixed, you would use the following syntax to declare
! '_Complex128' to be a complex '__float128' type:
  
   On the PowerPC Linux VSX targets, you can declare complex types using
! the corresponding internal complex type, 'KCmode' for '__float128' type
! and 'ICmode' for '__ibm128' type:
  
       typedef _Complex float __attribute__((mode(KC))) _Complex_float128;
       typedef _Complex float __attribute__((mode(IC))) _Complex_ibm128;
  
!  Not all targets support additional floating-point types.  '__float80'
! and '__float128' types are supported on x86 and IA-64 targets.  The
! '__float128' type is supported on hppa HP-UX. The '__float128' type is
  supported on PowerPC 64-bit Linux systems by default if the vector
  scalar instruction set (VSX) is enabled.
  
!  On the PowerPC, '__ibm128' provides access to the IBM extended double
  format, and it is intended to be used by the library functions that
  handle conversions if/when long double is changed to be IEEE 128-bit
  floating point.
*************** File: gcc.info,  Node: Half-Precision,
*** 24922,24966 ****
  ==================================
  
  On ARM targets, GCC supports half-precision (16-bit) floating point via
! the `__fp16' type.  You must enable this type explicitly with the
! `-mfp16-format' command-line option in order to use it.
  
   ARM supports two incompatible representations for half-precision
  floating-point values.  You must choose one of the representations and
  use it consistently in your program.
  
!  Specifying `-mfp16-format=ieee' selects the IEEE 754-2008 format.
! This format can represent normalized values in the range of 2^-14 to
! 65504.  There are 11 bits of significand precision, approximately 3
! decimal digits.
  
!  Specifying `-mfp16-format=alternative' selects the ARM alternative
! format.  This representation is similar to the IEEE format, but does
! not support infinities or NaNs.  Instead, the range of exponents is
  extended, so that this format can represent normalized values in the
! range of 2^-14 to 131008.
  
!  The `__fp16' type is a storage format only.  For purposes of
! arithmetic and other operations, `__fp16' values in C or C++
! expressions are automatically promoted to `float'.  In addition, you
! cannot declare a function with a return value or parameters of type
! `__fp16'.
  
!  Note that conversions from `double' to `__fp16' involve an
! intermediate conversion to `float'.  Because of rounding, this can
! sometimes produce a different result than a direct conversion.
  
!  ARM provides hardware support for conversions between `__fp16' and
! `float' values as an extension to VFP and NEON (Advanced SIMD).  GCC
  generates code using these hardware instructions if you compile with
  options to select an FPU that provides them; for example,
! `-mfpu=neon-fp16 -mfloat-abi=softfp', in addition to the
! `-mfp16-format' option to select a half-precision format.
  
!  Language-level support for the `__fp16' data type is independent of
  whether GCC generates code using hardware floating-point instructions.
  In cases where hardware support is not specified, GCC implements
! conversions between `__fp16' and `float' values as library calls.
  
  
  File: gcc.info,  Node: Decimal Float,  Next: Hex Floats,  Prev: Half-Precision,  Up: C Extensions
--- 24803,24846 ----
  ==================================
  
  On ARM targets, GCC supports half-precision (16-bit) floating point via
! the '__fp16' type.  You must enable this type explicitly with the
! '-mfp16-format' command-line option in order to use it.
  
   ARM supports two incompatible representations for half-precision
  floating-point values.  You must choose one of the representations and
  use it consistently in your program.
  
!  Specifying '-mfp16-format=ieee' selects the IEEE 754-2008 format.  This
! format can represent normalized values in the range of 2^{-14} to 65504.
! There are 11 bits of significand precision, approximately 3 decimal
! digits.
  
!  Specifying '-mfp16-format=alternative' selects the ARM alternative
! format.  This representation is similar to the IEEE format, but does not
! support infinities or NaNs.  Instead, the range of exponents is
  extended, so that this format can represent normalized values in the
! range of 2^{-14} to 131008.
  
!  The '__fp16' type is a storage format only.  For purposes of arithmetic
! and other operations, '__fp16' values in C or C++ expressions are
! automatically promoted to 'float'.  In addition, you cannot declare a
! function with a return value or parameters of type '__fp16'.
  
!  Note that conversions from 'double' to '__fp16' involve an intermediate
! conversion to 'float'.  Because of rounding, this can sometimes produce
! a different result than a direct conversion.
  
!  ARM provides hardware support for conversions between '__fp16' and
! 'float' values as an extension to VFP and NEON (Advanced SIMD). GCC
  generates code using these hardware instructions if you compile with
  options to select an FPU that provides them; for example,
! '-mfpu=neon-fp16 -mfloat-abi=softfp', in addition to the '-mfp16-format'
! option to select a half-precision format.
  
!  Language-level support for the '__fp16' data type is independent of
  whether GCC generates code using hardware floating-point instructions.
  In cases where hardware support is not specified, GCC implements
! conversions between '__fp16' and 'float' values as library calls.
  
  
  File: gcc.info,  Node: Decimal Float,  Next: Hex Floats,  Prev: Half-Precision,  Up: C Extensions
*************** File: gcc.info,  Node: Decimal Float,  N
*** 24968,24990 ****
  6.13 Decimal Floating Types
  ===========================
  
! As an extension, GNU C supports decimal floating types as defined in
! the N1312 draft of ISO/IEC WDTR24732.  Support for decimal floating
! types in GCC will evolve as the draft technical report changes.
! Calling conventions for any target might also change.  Not all targets
! support decimal floating types.
  
!  The decimal floating types are `_Decimal32', `_Decimal64', and
! `_Decimal128'.  They use a radix of ten, unlike the floating types
! `float', `double', and `long double' whose radix is not specified by
! the C standard but is usually two.
  
   Support for decimal floating types includes the arithmetic operators
  add, subtract, multiply, divide; unary arithmetic operators; relational
  operators; equality operators; and conversions to and from integer and
! other floating types.  Use a suffix `df' or `DF' in a literal constant
! of type `_Decimal32', `dd' or `DD' for `_Decimal64', and `dl' or `DL'
! for `_Decimal128'.
  
   GCC support of decimal float as specified by the draft technical report
  is incomplete:
--- 24848,24870 ----
  6.13 Decimal Floating Types
  ===========================
  
! As an extension, GNU C supports decimal floating types as defined in the
! N1312 draft of ISO/IEC WDTR24732.  Support for decimal floating types in
! GCC will evolve as the draft technical report changes.  Calling
! conventions for any target might also change.  Not all targets support
! decimal floating types.
  
!  The decimal floating types are '_Decimal32', '_Decimal64', and
! '_Decimal128'.  They use a radix of ten, unlike the floating types
! 'float', 'double', and 'long double' whose radix is not specified by the
! C standard but is usually two.
  
   Support for decimal floating types includes the arithmetic operators
  add, subtract, multiply, divide; unary arithmetic operators; relational
  operators; equality operators; and conversions to and from integer and
! other floating types.  Use a suffix 'df' or 'DF' in a literal constant
! of type '_Decimal32', 'dd' or 'DD' for '_Decimal64', and 'dl' or 'DL'
! for '_Decimal128'.
  
   GCC support of decimal float as specified by the draft technical report
  is incomplete:
*************** is incomplete:
*** 24995,25006 ****
       technical report.
  
     * GCC does not provide the C library functionality associated with
!      `math.h', `fenv.h', `stdio.h', `stdlib.h', and `wchar.h', which
       must come from a separate C library implementation.  Because of
!      this the GNU C compiler does not define macro `__STDC_DEC_FP__' to
       indicate that the implementation conforms to the technical report.
  
!  Types `_Decimal32', `_Decimal64', and `_Decimal128' are supported by
  the DWARF debug information format.
  
  
--- 24875,24886 ----
       technical report.
  
     * GCC does not provide the C library functionality associated with
!      'math.h', 'fenv.h', 'stdio.h', 'stdlib.h', and 'wchar.h', which
       must come from a separate C library implementation.  Because of
!      this the GNU C compiler does not define macro '__STDC_DEC_FP__' to
       indicate that the implementation conforms to the technical report.
  
!  Types '_Decimal32', '_Decimal64', and '_Decimal128' are supported by
  the DWARF debug information format.
  
  
*************** File: gcc.info,  Node: Hex Floats,  Next
*** 25010,25029 ****
  ===============
  
  ISO C99 supports floating-point numbers written not only in the usual
! decimal notation, such as `1.55e1', but also numbers such as `0x1.fp3'
! written in hexadecimal format.  As a GNU extension, GCC supports this
! in C90 mode (except in some cases when strictly conforming) and in C++.
! In that format the `0x' hex introducer and the `p' or `P' exponent
! field are mandatory.  The exponent is a decimal number that indicates
! the power of 2 by which the significant part is multiplied.  Thus
! `0x1.f' is 1 15/16, `p3' multiplies it by 8, and the value of `0x1.fp3'
! is the same as `1.55e1'.
  
   Unlike for floating-point numbers in the decimal notation the exponent
  is always required in the hexadecimal notation.  Otherwise the compiler
! would not be able to resolve the ambiguity of, e.g., `0x1.f'.  This
! could mean `1.0f' or `1.9375' since `f' is also the extension for
! floating-point constants of type `float'.
  
  
  File: gcc.info,  Node: Fixed-Point,  Next: Named Address Spaces,  Prev: Hex Floats,  Up: C Extensions
--- 24890,24909 ----
  ===============
  
  ISO C99 supports floating-point numbers written not only in the usual
! decimal notation, such as '1.55e1', but also numbers such as '0x1.fp3'
! written in hexadecimal format.  As a GNU extension, GCC supports this in
! C90 mode (except in some cases when strictly conforming) and in C++.  In
! that format the '0x' hex introducer and the 'p' or 'P' exponent field
! are mandatory.  The exponent is a decimal number that indicates the
! power of 2 by which the significant part is multiplied.  Thus '0x1.f' is
! 1 15/16, 'p3' multiplies it by 8, and the value of '0x1.fp3' is the same
! as '1.55e1'.
  
   Unlike for floating-point numbers in the decimal notation the exponent
  is always required in the hexadecimal notation.  Otherwise the compiler
! would not be able to resolve the ambiguity of, e.g., '0x1.f'.  This
! could mean '1.0f' or '1.9375' since 'f' is also the extension for
! floating-point constants of type 'float'.
  
  
  File: gcc.info,  Node: Fixed-Point,  Next: Named Address Spaces,  Prev: Hex Floats,  Up: C Extensions
*************** will evolve as the draft technical repor
*** 25037,25113 ****
  for any target might also change.  Not all targets support fixed-point
  types.
  
!  The fixed-point types are `short _Fract', `_Fract', `long _Fract',
! `long long _Fract', `unsigned short _Fract', `unsigned _Fract',
! `unsigned long _Fract', `unsigned long long _Fract', `_Sat short
! _Fract', `_Sat _Fract', `_Sat long _Fract', `_Sat long long _Fract',
! `_Sat unsigned short _Fract', `_Sat unsigned _Fract', `_Sat unsigned
! long _Fract', `_Sat unsigned long long _Fract', `short _Accum',
! `_Accum', `long _Accum', `long long _Accum', `unsigned short _Accum',
! `unsigned _Accum', `unsigned long _Accum', `unsigned long long _Accum',
! `_Sat short _Accum', `_Sat _Accum', `_Sat long _Accum', `_Sat long long
! _Accum', `_Sat unsigned short _Accum', `_Sat unsigned _Accum', `_Sat
! unsigned long _Accum', `_Sat unsigned long long _Accum'.
  
   Fixed-point data values contain fractional and optional integral parts.
  The format of fixed-point data varies and depends on the target machine.
  
   Support for fixed-point types includes:
!    * prefix and postfix increment and decrement operators (`++', `--')
! 
!    * unary arithmetic operators (`+', `-', `!')
! 
!    * binary arithmetic operators (`+', `-', `*', `/')
! 
!    * binary shift operators (`<<', `>>')
! 
!    * relational operators (`<', `<=', `>=', `>')
! 
!    * equality operators (`==', `!=')
! 
!    * assignment operators (`+=', `-=', `*=', `/=', `<<=', `>>=')
! 
     * conversions to and from integer, floating-point, or fixed-point
       types
  
   Use a suffix in a fixed-point literal constant:
!    * `hr' or `HR' for `short _Fract' and `_Sat short _Fract'
! 
!    * `r' or `R' for `_Fract' and `_Sat _Fract'
! 
!    * `lr' or `LR' for `long _Fract' and `_Sat long _Fract'
! 
!    * `llr' or `LLR' for `long long _Fract' and `_Sat long long _Fract'
! 
!    * `uhr' or `UHR' for `unsigned short _Fract' and `_Sat unsigned
!      short _Fract'
! 
!    * `ur' or `UR' for `unsigned _Fract' and `_Sat unsigned _Fract'
! 
!    * `ulr' or `ULR' for `unsigned long _Fract' and `_Sat unsigned long
       _Fract'
! 
!    * `ullr' or `ULLR' for `unsigned long long _Fract' and `_Sat
!      unsigned long long _Fract'
! 
!    * `hk' or `HK' for `short _Accum' and `_Sat short _Accum'
! 
!    * `k' or `K' for `_Accum' and `_Sat _Accum'
! 
!    * `lk' or `LK' for `long _Accum' and `_Sat long _Accum'
! 
!    * `llk' or `LLK' for `long long _Accum' and `_Sat long long _Accum'
! 
!    * `uhk' or `UHK' for `unsigned short _Accum' and `_Sat unsigned
!      short _Accum'
! 
!    * `uk' or `UK' for `unsigned _Accum' and `_Sat unsigned _Accum'
! 
!    * `ulk' or `ULK' for `unsigned long _Accum' and `_Sat unsigned long
       _Accum'
! 
!    * `ullk' or `ULLK' for `unsigned long long _Accum' and `_Sat
!      unsigned long long _Accum'
  
   GCC support of fixed-point types as specified by the draft technical
  report is incomplete:
--- 24917,24971 ----
  for any target might also change.  Not all targets support fixed-point
  types.
  
!  The fixed-point types are 'short _Fract', '_Fract', 'long _Fract',
! 'long long _Fract', 'unsigned short _Fract', 'unsigned _Fract',
! 'unsigned long _Fract', 'unsigned long long _Fract', '_Sat short
! _Fract', '_Sat _Fract', '_Sat long _Fract', '_Sat long long _Fract',
! '_Sat unsigned short _Fract', '_Sat unsigned _Fract', '_Sat unsigned
! long _Fract', '_Sat unsigned long long _Fract', 'short _Accum',
! '_Accum', 'long _Accum', 'long long _Accum', 'unsigned short _Accum',
! 'unsigned _Accum', 'unsigned long _Accum', 'unsigned long long _Accum',
! '_Sat short _Accum', '_Sat _Accum', '_Sat long _Accum', '_Sat long long
! _Accum', '_Sat unsigned short _Accum', '_Sat unsigned _Accum', '_Sat
! unsigned long _Accum', '_Sat unsigned long long _Accum'.
  
   Fixed-point data values contain fractional and optional integral parts.
  The format of fixed-point data varies and depends on the target machine.
  
   Support for fixed-point types includes:
!    * prefix and postfix increment and decrement operators ('++', '--')
!    * unary arithmetic operators ('+', '-', '!')
!    * binary arithmetic operators ('+', '-', '*', '/')
!    * binary shift operators ('<<', '>>')
!    * relational operators ('<', '<=', '>=', '>')
!    * equality operators ('==', '!=')
!    * assignment operators ('+=', '-=', '*=', '/=', '<<=', '>>=')
     * conversions to and from integer, floating-point, or fixed-point
       types
  
   Use a suffix in a fixed-point literal constant:
!    * 'hr' or 'HR' for 'short _Fract' and '_Sat short _Fract'
!    * 'r' or 'R' for '_Fract' and '_Sat _Fract'
!    * 'lr' or 'LR' for 'long _Fract' and '_Sat long _Fract'
!    * 'llr' or 'LLR' for 'long long _Fract' and '_Sat long long _Fract'
!    * 'uhr' or 'UHR' for 'unsigned short _Fract' and '_Sat unsigned short
       _Fract'
!    * 'ur' or 'UR' for 'unsigned _Fract' and '_Sat unsigned _Fract'
!    * 'ulr' or 'ULR' for 'unsigned long _Fract' and '_Sat unsigned long
!      _Fract'
!    * 'ullr' or 'ULLR' for 'unsigned long long _Fract' and '_Sat unsigned
!      long long _Fract'
!    * 'hk' or 'HK' for 'short _Accum' and '_Sat short _Accum'
!    * 'k' or 'K' for '_Accum' and '_Sat _Accum'
!    * 'lk' or 'LK' for 'long _Accum' and '_Sat long _Accum'
!    * 'llk' or 'LLK' for 'long long _Accum' and '_Sat long long _Accum'
!    * 'uhk' or 'UHK' for 'unsigned short _Accum' and '_Sat unsigned short
       _Accum'
!    * 'uk' or 'UK' for 'unsigned _Accum' and '_Sat unsigned _Accum'
!    * 'ulk' or 'ULK' for 'unsigned long _Accum' and '_Sat unsigned long
!      _Accum'
!    * 'ullk' or 'ULLK' for 'unsigned long long _Accum' and '_Sat unsigned
!      long long _Accum'
  
   GCC support of fixed-point types as specified by the draft technical
  report is incomplete:
*************** File: gcc.info,  Node: Named Address Spa
*** 25126,25137 ****
  As an extension, GNU C supports named address spaces as defined in the
  N1275 draft of ISO/IEC DTR 18037.  Support for named address spaces in
  GCC will evolve as the draft technical report changes.  Calling
! conventions for any target might also change.  At present, only the
! AVR, SPU, M32C, RL78, and x86 targets support address spaces other than
! the generic address space.
  
   Address space identifiers may be used exactly like any other C type
! qualifier (e.g., `const' or `volatile').  See the N1275 document for
  more details.
  
  6.16.1 AVR Named Address Spaces
--- 24984,24995 ----
  As an extension, GNU C supports named address spaces as defined in the
  N1275 draft of ISO/IEC DTR 18037.  Support for named address spaces in
  GCC will evolve as the draft technical report changes.  Calling
! conventions for any target might also change.  At present, only the AVR,
! SPU, M32C, RL78, and x86 targets support address spaces other than the
! generic address space.
  
   Address space identifiers may be used exactly like any other C type
! qualifier (e.g., 'const' or 'volatile').  See the N1275 document for
  more details.
  
  6.16.1 AVR Named Address Spaces
*************** more details.
*** 25139,25176 ****
  
  On the AVR target, there are several address spaces that can be used in
  order to put read-only data into the flash memory and access that data
! by means of the special instructions `LPM' or `ELPM' needed to read
! from flash.
  
   Per default, any data including read-only data is located in RAM (the
  generic address space) so that non-generic address spaces are needed to
  locate read-only data in flash memory _and_ to generate the right
  instructions to access this data without using (inline) assembler code.
  
! `__flash'
!      The `__flash' qualifier locates data in the `.progmem.data'
!      section. Data is read using the `LPM' instruction. Pointers to
       this address space are 16 bits wide.
  
! `__flash1'
! `__flash2'
! `__flash3'
! `__flash4'
! `__flash5'
       These are 16-bit address spaces locating data in section
!      `.progmemN.data' where N refers to address space `__flashN'.  The
!      compiler sets the `RAMPZ' segment register appropriately before
!      reading data by means of the `ELPM' instruction.
  
! `__memx'
       This is a 24-bit address space that linearizes flash and RAM: If
!      the high bit of the address is set, data is read from RAM using
!      the lower two bytes as RAM address.  If the high bit of the
!      address is clear, data is read from flash with `RAMPZ' set
!      according to the high byte of the address.  *Note
!      `__builtin_avr_flash_segment': AVR Built-in Functions.
  
!      Objects in this address space are located in `.progmemx.data'.
  
   Example
  
--- 24997,25034 ----
  
  On the AVR target, there are several address spaces that can be used in
  order to put read-only data into the flash memory and access that data
! by means of the special instructions 'LPM' or 'ELPM' needed to read from
! flash.
  
   Per default, any data including read-only data is located in RAM (the
  generic address space) so that non-generic address spaces are needed to
  locate read-only data in flash memory _and_ to generate the right
  instructions to access this data without using (inline) assembler code.
  
! '__flash'
!      The '__flash' qualifier locates data in the '.progmem.data'
!      section.  Data is read using the 'LPM' instruction.  Pointers to
       this address space are 16 bits wide.
  
! '__flash1'
! '__flash2'
! '__flash3'
! '__flash4'
! '__flash5'
       These are 16-bit address spaces locating data in section
!      '.progmemN.data' where N refers to address space '__flashN'.  The
!      compiler sets the 'RAMPZ' segment register appropriately before
!      reading data by means of the 'ELPM' instruction.
  
! '__memx'
       This is a 24-bit address space that linearizes flash and RAM: If
!      the high bit of the address is set, data is read from RAM using the
!      lower two bytes as RAM address.  If the high bit of the address is
!      clear, data is read from flash with 'RAMPZ' set according to the
!      high byte of the address.  *Note '__builtin_avr_flash_segment': AVR
!      Built-in Functions.
  
!      Objects in this address space are located in '.progmemx.data'.
  
   Example
  
*************** not:
*** 25218,25250 ****
       }
       #endif /* __FLASH */
  
! Notice that attribute *note `progmem': AVR Variable Attributes.
! locates data in flash but accesses to these data read from generic
! address space, i.e.  from RAM, so that you need special accessors like
! `pgm_read_byte' from AVR-LibC (http://nongnu.org/avr-libc/user-manual/)
! together with attribute `progmem'.
  
  Limitations and caveats
  
!    * Reading across the 64 KiB section boundary of the `__flash' or
!      `__flashN' address spaces shows undefined behavior. The only
!      address space that supports reading across the 64 KiB flash
!      segment boundaries is `__memx'.
  
!    * If you use one of the `__flashN' address spaces you must arrange
!      your linker script to locate the `.progmemN.data' sections
       according to your needs.
  
     * Any data or pointers to the non-generic address spaces must be
!      qualified as `const', i.e. as read-only data.  This still applies
       if the data in one of these address spaces like software version
!      number or calibration lookup table are intended to be changed
!      after load time by, say, a boot loader. In this case the right
!      qualification is `const' `volatile' so that the compiler must not
       optimize away known values or insert them as immediates into
       operands of instructions.
  
!    * The following code initializes a variable `pfoo' located in static
       storage with a 24-bit address:
            extern const __memx char foo;
            const __memx void *pfoo = &foo;
--- 25076,25108 ----
       }
       #endif /* __FLASH */
  
! Notice that attribute *note 'progmem': AVR Variable Attributes. locates
! data in flash but accesses to these data read from generic address
! space, i.e. from RAM, so that you need special accessors like
! 'pgm_read_byte' from AVR-LibC (http://nongnu.org/avr-libc/user-manual/)
! together with attribute 'progmem'.
  
  Limitations and caveats
  
!    * Reading across the 64 KiB section boundary of the '__flash' or
!      '__flashN' address spaces shows undefined behavior.  The only
!      address space that supports reading across the 64 KiB flash segment
!      boundaries is '__memx'.
  
!    * If you use one of the '__flashN' address spaces you must arrange
!      your linker script to locate the '.progmemN.data' sections
       according to your needs.
  
     * Any data or pointers to the non-generic address spaces must be
!      qualified as 'const', i.e. as read-only data.  This still applies
       if the data in one of these address spaces like software version
!      number or calibration lookup table are intended to be changed after
!      load time by, say, a boot loader.  In this case the right
!      qualification is 'const' 'volatile' so that the compiler must not
       optimize away known values or insert them as immediates into
       operands of instructions.
  
!    * The following code initializes a variable 'pfoo' located in static
       storage with a 24-bit address:
            extern const __memx char foo;
            const __memx void *pfoo = &foo;
*************** Limitations and caveats
*** 25252,25270 ****
       Such code requires at least binutils 2.23, see
       PR13503 (http://sourceware.org/PR13503).
  
- 
  6.16.2 M32C Named Address Spaces
  --------------------------------
  
  On the M32C target, with the R8C and M16C CPU variants, variables
! qualified with `__far' are accessed using 32-bit addresses in order to
! access memory beyond the first 64 Ki bytes.  If `__far' is used with
! the M32CM or M32C CPU variants, it has no effect.
  
  6.16.3 RL78 Named Address Spaces
  --------------------------------
  
! On the RL78 target, variables qualified with `__far' are accessed with
  32-bit pointers (20-bit addresses) rather than the default 16-bit
  addresses.  Non-far variables are assumed to appear in the topmost
  64 KiB of the address space.
--- 25110,25127 ----
       Such code requires at least binutils 2.23, see
       PR13503 (http://sourceware.org/PR13503).
  
  6.16.2 M32C Named Address Spaces
  --------------------------------
  
  On the M32C target, with the R8C and M16C CPU variants, variables
! qualified with '__far' are accessed using 32-bit addresses in order to
! access memory beyond the first 64 Ki bytes.  If '__far' is used with the
! M32CM or M32C CPU variants, it has no effect.
  
  6.16.3 RL78 Named Address Spaces
  --------------------------------
  
! On the RL78 target, variables qualified with '__far' are accessed with
  32-bit pointers (20-bit addresses) rather than the default 16-bit
  addresses.  Non-far variables are assumed to appear in the topmost
  64 KiB of the address space.
*************** addresses.  Non-far variables are assume
*** 25273,25295 ****
  -------------------------------
  
  On the SPU target variables may be declared as belonging to another
! address space by qualifying the type with the `__ea' address space
  identifier:
  
       extern int __ea i;
  
! The compiler generates special code to access the variable `i'.  It may
! use runtime library support, or generate special machine instructions
! to access that address space.
  
  6.16.5 x86 Named Address Spaces
  -------------------------------
  
  On the x86 target, variables may be declared as being relative to the
! `%fs' or `%gs' segments.
  
! `__seg_fs'
! `__seg_gs'
       The object is accessed with the respective segment override prefix.
  
       The respective segment base must be set via some method specific to
--- 25130,25152 ----
  -------------------------------
  
  On the SPU target variables may be declared as belonging to another
! address space by qualifying the type with the '__ea' address space
  identifier:
  
       extern int __ea i;
  
! The compiler generates special code to access the variable 'i'.  It may
! use runtime library support, or generate special machine instructions to
! access that address space.
  
  6.16.5 x86 Named Address Spaces
  -------------------------------
  
  On the x86 target, variables may be declared as being relative to the
! '%fs' or '%gs' segments.
  
! '__seg_fs'
! '__seg_gs'
       The object is accessed with the respective segment override prefix.
  
       The respective segment base must be set via some method specific to
*************** On the x86 target, variables may be decl
*** 25298,25308 ****
       considered to be subspaces of the generic (flat) address space.
       This means that explicit casts are required to convert pointers
       between these address spaces and the generic address space.  In
!      practice the application should cast to `uintptr_t' and apply the
       segment base offset that it installed previously.
  
!      The preprocessor symbols `__SEG_FS' and `__SEG_GS' are defined
!      when these address spaces are supported.
  
  
  File: gcc.info,  Node: Zero Length,  Next: Empty Structures,  Prev: Named Address Spaces,  Up: C Extensions
--- 25155,25165 ----
       considered to be subspaces of the generic (flat) address space.
       This means that explicit casts are required to convert pointers
       between these address spaces and the generic address space.  In
!      practice the application should cast to 'uintptr_t' and apply the
       segment base offset that it installed previously.
  
!      The preprocessor symbols '__SEG_FS' and '__SEG_GS' are defined when
!      these address spaces are supported.
  
  
  File: gcc.info,  Node: Zero Length,  Next: Empty Structures,  Prev: Named Address Spaces,  Up: C Extensions
*************** variable-length object:
*** 25323,25358 ****
         malloc (sizeof (struct line) + this_length);
       thisline->length = this_length;
  
!  In ISO C90, you would have to give `contents' a length of 1, which
! means either you waste space or complicate the argument to `malloc'.
  
   In ISO C99, you would use a "flexible array member", which is slightly
  different in syntax and semantics:
  
!    * Flexible array members are written as `contents[]' without the `0'.
  
!    * Flexible array members have incomplete type, and so the `sizeof'
       operator may not be applied.  As a quirk of the original
!      implementation of zero-length arrays, `sizeof' evaluates to zero.
  
     * Flexible array members may only appear as the last member of a
!      `struct' that is otherwise non-empty.
  
     * A structure containing a flexible array member, or a union
       containing such a structure (possibly recursively), may not be a
       member of a structure or an element of an array.  (However, these
       uses are permitted by GCC as extensions.)
  
!  Non-empty initialization of zero-length arrays is treated like any
! case where there are more initializer elements than the array holds, in
! that a suitable warning about "excess elements in array" is given, and
! the excess elements (all of them, in this case) are ignored.
  
   GCC allows static initialization of flexible array members.  This is
! equivalent to defining a new structure containing the original
! structure followed by an array of sufficient size to contain the data.
! E.g. in the following, `f1' is constructed as if it were declared like
! `f2'.
  
       struct f1 {
         int x; int y[];
--- 25180,25214 ----
         malloc (sizeof (struct line) + this_length);
       thisline->length = this_length;
  
!  In ISO C90, you would have to give 'contents' a length of 1, which
! means either you waste space or complicate the argument to 'malloc'.
  
   In ISO C99, you would use a "flexible array member", which is slightly
  different in syntax and semantics:
  
!    * Flexible array members are written as 'contents[]' without the '0'.
  
!    * Flexible array members have incomplete type, and so the 'sizeof'
       operator may not be applied.  As a quirk of the original
!      implementation of zero-length arrays, 'sizeof' evaluates to zero.
  
     * Flexible array members may only appear as the last member of a
!      'struct' that is otherwise non-empty.
  
     * A structure containing a flexible array member, or a union
       containing such a structure (possibly recursively), may not be a
       member of a structure or an element of an array.  (However, these
       uses are permitted by GCC as extensions.)
  
!  Non-empty initialization of zero-length arrays is treated like any case
! where there are more initializer elements than the array holds, in that
! a suitable warning about "excess elements in array" is given, and the
! excess elements (all of them, in this case) are ignored.
  
   GCC allows static initialization of flexible array members.  This is
! equivalent to defining a new structure containing the original structure
! followed by an array of sufficient size to contain the data.  E.g. in
! the following, 'f1' is constructed as if it were declared like 'f2'.
  
       struct f1 {
         int x; int y[];
*************** E.g. in the following, `f1' is construct
*** 25362,25379 ****
         struct f1 f1; int data[3];
       } f2 = { { 1 }, { 2, 3, 4 } };
  
! The convenience of this extension is that `f1' has the desired type,
! eliminating the need to consistently refer to `f2.f1'.
  
   This has symmetry with normal static arrays, in that an array of
! unknown size is also written with `[]'.
  
   Of course, this extension only makes sense if the extra data comes at
! the end of a top-level object, as otherwise we would be overwriting
! data at subsequent offsets.  To avoid undue complication and confusion
! with initialization of deeply nested arrays, we simply disallow any
! non-empty initialization except when the structure is the top-level
! object.  For example:
  
       struct foo { int x; int y[]; };
       struct bar { struct foo z; };
--- 25218,25235 ----
         struct f1 f1; int data[3];
       } f2 = { { 1 }, { 2, 3, 4 } };
  
! The convenience of this extension is that 'f1' has the desired type,
! eliminating the need to consistently refer to 'f2.f1'.
  
   This has symmetry with normal static arrays, in that an array of
! unknown size is also written with '[]'.
  
   Of course, this extension only makes sense if the extra data comes at
! the end of a top-level object, as otherwise we would be overwriting data
! at subsequent offsets.  To avoid undue complication and confusion with
! initialization of deeply nested arrays, we simply disallow any non-empty
! initialization except when the structure is the top-level object.  For
! example:
  
       struct foo { int x; int y[]; };
       struct bar { struct foo z; };
*************** GCC permits a C structure to have no mem
*** 25395,25402 ****
       };
  
   The structure has size zero.  In C++, empty structures are part of the
! language.  G++ treats empty structures as if they had a single member
! of type `char'.
  
  
  File: gcc.info,  Node: Variable Length,  Next: Variadic Macros,  Prev: Empty Structures,  Up: C Extensions
--- 25251,25258 ----
       };
  
   The structure has size zero.  In C++, empty structures are part of the
! language.  G++ treats empty structures as if they had a single member of
! type 'char'.
  
  
  File: gcc.info,  Node: Variable Length,  Next: Variadic Macros,  Prev: Empty Structures,  Up: C Extensions
*************** structure or a union.  For example:
*** 25433,25447 ****
         struct S { int x[n]; };
       }
  
!  You can use the function `alloca' to get an effect much like
! variable-length arrays.  The function `alloca' is available in many
  other C implementations (but not in all).  On the other hand,
  variable-length arrays are more elegant.
  
   There are other differences between these two methods.  Space allocated
! with `alloca' exists until the containing _function_ returns.  The
! space for a variable-length array is deallocated as soon as the array
! name's scope ends, unless you also use `alloca' in this scope.
  
   You can also use variable-length arrays as arguments to functions:
  
--- 25289,25303 ----
         struct S { int x[n]; };
       }
  
!  You can use the function 'alloca' to get an effect much like
! variable-length arrays.  The function 'alloca' is available in many
  other C implementations (but not in all).  On the other hand,
  variable-length arrays are more elegant.
  
   There are other differences between these two methods.  Space allocated
! with 'alloca' exists until the containing _function_ returns.  The space
! for a variable-length array is deallocated as soon as the array name's
! scope ends, unless you also use 'alloca' in this scope.
  
   You can also use variable-length arrays as arguments to functions:
  
*************** name's scope ends, unless you also use `
*** 25453,25459 ****
  
   The length of an array is computed once when the storage is allocated
  and is remembered for the scope of the array in case you access it with
! `sizeof'.
  
   If you want to pass the array first and the length afterward, you can
  use a forward declaration in the parameter list--another GNU extension.
--- 25309,25315 ----
  
   The length of an array is computed once when the storage is allocated
  and is remembered for the scope of the array in case you access it with
! 'sizeof'.
  
   If you want to pass the array first and the length afterward, you can
  use a forward declaration in the parameter list--another GNU extension.
*************** use a forward declaration in the paramet
*** 25464,25472 ****
         /* ... */
       }
  
!  The `int len' before the semicolon is a "parameter forward
! declaration", and it serves the purpose of making the name `len' known
! when the declaration of `data' is parsed.
  
   You can write any number of such parameter forward declarations in the
  parameter list.  They can be separated by commas or semicolons, but the
--- 25320,25328 ----
         /* ... */
       }
  
!  The 'int len' before the semicolon is a "parameter forward
! declaration", and it serves the purpose of making the name 'len' known
! when the declaration of 'data' is parsed.
  
   You can write any number of such parameter forward declarations in the
  parameter list.  They can be separated by commas or semicolons, but the
*************** example:
*** 25488,25498 ****
  
       #define debug(format, ...) fprintf (stderr, format, __VA_ARGS__)
  
! Here `...' is a "variable argument".  In the invocation of such a
! macro, it represents the zero or more tokens until the closing
! parenthesis that ends the invocation, including any commas.  This set of
! tokens replaces the identifier `__VA_ARGS__' in the macro body wherever
! it appears.  See the CPP manual for more information.
  
   GCC has long supported variadic macros, and used a different syntax
  that allowed you to give a name to the variable arguments just like any
--- 25344,25354 ----
  
       #define debug(format, ...) fprintf (stderr, format, __VA_ARGS__)
  
! Here '...' is a "variable argument".  In the invocation of such a macro,
! it represents the zero or more tokens until the closing parenthesis that
! ends the invocation, including any commas.  This set of tokens replaces
! the identifier '__VA_ARGS__' in the macro body wherever it appears.  See
! the CPP manual for more information.
  
   GCC has long supported variadic macros, and used a different syntax
  that allowed you to give a name to the variable arguments just like any
*************** be used with either of the above forms o
*** 25508,25515 ****
  
   In standard C, you are not allowed to leave the variable argument out
  entirely; but you are allowed to pass an empty argument.  For example,
! this invocation is invalid in ISO C, because there is no comma after
! the string:
  
       debug ("A message")
  
--- 25364,25371 ----
  
   In standard C, you are not allowed to leave the variable argument out
  entirely; but you are allowed to pass an empty argument.  For example,
! this invocation is invalid in ISO C, because there is no comma after the
! string:
  
       debug ("A message")
  
*************** the expansion of the macro still has the
*** 25519,25530 ****
  string.
  
   To help solve this problem, CPP behaves specially for variable
! arguments used with the token paste operator, `##'.  If instead you
  write
  
       #define debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
  
! and if the variable arguments are omitted or empty, the `##' operator
  causes the preprocessor to remove the comma before it.  If you do
  provide some variable arguments in your macro invocation, GNU CPP does
  not complain about the paste operation and instead places the variable
--- 25375,25386 ----
  string.
  
   To help solve this problem, CPP behaves specially for variable
! arguments used with the token paste operator, '##'.  If instead you
  write
  
       #define debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
  
! and if the variable arguments are omitted or empty, the '##' operator
  causes the preprocessor to remove the comma before it.  If you do
  provide some variable arguments in your macro invocation, GNU CPP does
  not complain about the paste operation and instead places the variable
*************** File: gcc.info,  Node: Escaped Newlines,
*** 25537,25552 ****
  6.21 Slightly Looser Rules for Escaped Newlines
  ===============================================
  
! The preprocessor treatment of escaped newlines is more relaxed than
! that specified by the C90 standard, which requires the newline to
! immediately follow a backslash.  GCC's implementation allows whitespace
! in the form of spaces, horizontal and vertical tabs, and form feeds
! between the backslash and the subsequent newline.  The preprocessor
! issues a warning, but treats it as a valid escaped newline and combines
! the two lines to form a single logical line.  This works within
! comments and tokens, as well as between tokens.  Comments are _not_
! treated as whitespace for the purposes of this relaxation, since they
! have not yet been replaced with spaces.
  
  
  File: gcc.info,  Node: Subscripting,  Next: Pointer Arith,  Prev: Escaped Newlines,  Up: C Extensions
--- 25393,25408 ----
  6.21 Slightly Looser Rules for Escaped Newlines
  ===============================================
  
! The preprocessor treatment of escaped newlines is more relaxed than that
! specified by the C90 standard, which requires the newline to immediately
! follow a backslash.  GCC's implementation allows whitespace in the form
! of spaces, horizontal and vertical tabs, and form feeds between the
! backslash and the subsequent newline.  The preprocessor issues a
! warning, but treats it as a valid escaped newline and combines the two
! lines to form a single logical line.  This works within comments and
! tokens, as well as between tokens.  Comments are _not_ treated as
! whitespace for the purposes of this relaxation, since they have not yet
! been replaced with spaces.
  
  
  File: gcc.info,  Node: Subscripting,  Next: Pointer Arith,  Prev: Escaped Newlines,  Up: C Extensions
*************** File: gcc.info,  Node: Subscripting,  Ne
*** 25554,25565 ****
  6.22 Non-Lvalue Arrays May Have Subscripts
  ==========================================
  
! In ISO C99, arrays that are not lvalues still decay to pointers, and
! may be subscripted, although they may not be modified or used after the
! next sequence point and the unary `&' operator may not be applied to
! them.  As an extension, GNU C allows such arrays to be subscripted in
! C90 mode, though otherwise they do not decay to pointers outside C99
! mode.  For example, this is valid in GNU C though not valid in C90:
  
       struct foo {int a[4];};
  
--- 25410,25421 ----
  6.22 Non-Lvalue Arrays May Have Subscripts
  ==========================================
  
! In ISO C99, arrays that are not lvalues still decay to pointers, and may
! be subscripted, although they may not be modified or used after the next
! sequence point and the unary '&' operator may not be applied to them.
! As an extension, GNU C allows such arrays to be subscripted in C90 mode,
! though otherwise they do not decay to pointers outside C99 mode.  For
! example, this is valid in GNU C though not valid in C90:
  
       struct foo {int a[4];};
  
*************** mode.  For example, this is valid in GNU
*** 25573,25590 ****
  
  File: gcc.info,  Node: Pointer Arith,  Next: Pointers to Arrays,  Prev: Subscripting,  Up: C Extensions
  
! 6.23 Arithmetic on `void'- and Function-Pointers
  ================================================
  
  In GNU C, addition and subtraction operations are supported on pointers
! to `void' and on pointers to functions.  This is done by treating the
! size of a `void' or of a function as 1.
  
!  A consequence of this is that `sizeof' is also allowed on `void' and
! on function types, and returns 1.
  
!  The option `-Wpointer-arith' requests a warning if these extensions
! are used.
  
  
  File: gcc.info,  Node: Pointers to Arrays,  Next: Initializers,  Prev: Pointer Arith,  Up: C Extensions
--- 25429,25446 ----
  
  File: gcc.info,  Node: Pointer Arith,  Next: Pointers to Arrays,  Prev: Subscripting,  Up: C Extensions
  
! 6.23 Arithmetic on 'void'- and Function-Pointers
  ================================================
  
  In GNU C, addition and subtraction operations are supported on pointers
! to 'void' and on pointers to functions.  This is done by treating the
! size of a 'void' or of a function as 1.
  
!  A consequence of this is that 'sizeof' is also allowed on 'void' and on
! function types, and returns 1.
  
!  The option '-Wpointer-arith' requests a warning if these extensions are
! used.
  
  
  File: gcc.info,  Node: Pointers to Arrays,  Next: Initializers,  Prev: Pointer Arith,  Up: C Extensions
*************** File: gcc.info,  Node: Pointers to Array
*** 25592,25603 ****
  6.24 Pointers to Arrays with Qualifiers Work as Expected
  ========================================================
  
! In GNU C, pointers to arrays with qualifiers work similar to pointers
! to other qualified types. For example, a value of type `int (*)[5]' can
! be used to initialize a variable of type `const int (*)[5]'.  These
! types are incompatible in ISO C because the `const' qualifier is
! formally attached to the element type of the array and not the array
! itself.
  
       extern void
       transpose (int N, int M, double out[M][N], const double in[N][M]);
--- 25448,25458 ----
  6.24 Pointers to Arrays with Qualifiers Work as Expected
  ========================================================
  
! In GNU C, pointers to arrays with qualifiers work similar to pointers to
! other qualified types.  For example, a value of type 'int (*)[5]' can be
! used to initialize a variable of type 'const int (*)[5]'.  These types
! are incompatible in ISO C because the 'const' qualifier is formally
! attached to the element type of the array and not the array itself.
  
       extern void
       transpose (int N, int M, double out[M][N], const double in[N][M]);
*************** File: gcc.info,  Node: Initializers,  Ne
*** 25612,25621 ****
  6.25 Non-Constant Initializers
  ==============================
  
! As in standard C++ and ISO C99, the elements of an aggregate
! initializer for an automatic variable are not required to be constant
! expressions in GNU C.  Here is an example of an initializer with
! run-time varying elements:
  
       foo (float f, float g)
       {
--- 25467,25476 ----
  6.25 Non-Constant Initializers
  ==============================
  
! As in standard C++ and ISO C99, the elements of an aggregate initializer
! for an automatic variable are not required to be constant expressions in
! GNU C.  Here is an example of an initializer with run-time varying
! elements:
  
       foo (float f, float g)
       {
*************** initializer; it is an lvalue.  As an ext
*** 25636,25647 ****
  literals in C90 mode and in C++, though the semantics are somewhat
  different in C++.
  
!  Usually, the specified type is a structure.  Assume that `struct foo'
! and `structure' are declared as shown:
  
       struct foo {int a; char b[2];} structure;
  
! Here is an example of constructing a `struct foo' with a compound
  literal:
  
       structure = ((struct foo) {x + y, 'a', 0});
--- 25491,25502 ----
  literals in C90 mode and in C++, though the semantics are somewhat
  different in C++.
  
!  Usually, the specified type is a structure.  Assume that 'struct foo'
! and 'structure' are declared as shown:
  
       struct foo {int a; char b[2];} structure;
  
! Here is an example of constructing a 'struct foo' with a compound
  literal:
  
       structure = ((struct foo) {x + y, 'a', 0});
*************** initializer, as shown here:
*** 25666,25678 ****
  but then the compound literal is equivalent to a cast.
  
   As a GNU extension, GCC allows initialization of objects with static
! storage duration by compound literals (which is not possible in ISO
! C99, because the initializer is not a constant).  It is handled as if
! the object is initialized only with the bracket enclosed list if the
! types of the compound literal and the object match.  The initializer
! list of the compound literal must be constant.  If the object being
! initialized has array type of unknown size, the size is determined by
! compound literal size.
  
       static struct foo x = (struct foo) {1, 'a', 'b'};
       static int y[] = (int []) {1, 2, 3};
--- 25521,25533 ----
  but then the compound literal is equivalent to a cast.
  
   As a GNU extension, GCC allows initialization of objects with static
! storage duration by compound literals (which is not possible in ISO C99,
! because the initializer is not a constant).  It is handled as if the
! object is initialized only with the bracket enclosed list if the types
! of the compound literal and the object match.  The initializer list of
! the compound literal must be constant.  If the object being initialized
! has array type of unknown size, the size is determined by compound
! literal size.
  
       static struct foo x = (struct foo) {1, 'a', 'b'};
       static int y[] = (int []) {1, 2, 3};
*************** The above lines are equivalent to the fo
*** 25685,25703 ****
  
   In C, a compound literal designates an unnamed object with static or
  automatic storage duration.  In C++, a compound literal designates a
! temporary object, which only lives until the end of its
! full-expression.  As a result, well-defined C code that takes the
! address of a subobject of a compound literal can be undefined in C++,
! so the C++ compiler rejects the conversion of a temporary array to a
! pointer.  For instance, if the array compound literal example above
! appeared inside a function, any subsequent use of `foo' in C++ has
! undefined behavior because the lifetime of the array ends after the
! declaration of `foo'.
  
   As an optimization, the C++ compiler sometimes gives array compound
  literals longer lifetimes: when the array either appears outside a
! function or has const-qualified type.  If `foo' and its initializer had
! elements of `char *const' type rather than `char *', or if `foo' were a
  global variable, the array would have static storage duration.  But it
  is probably safest just to avoid the use of array compound literals in
  code compiled as C++.
--- 25540,25557 ----
  
   In C, a compound literal designates an unnamed object with static or
  automatic storage duration.  In C++, a compound literal designates a
! temporary object, which only lives until the end of its full-expression.
! As a result, well-defined C code that takes the address of a subobject
! of a compound literal can be undefined in C++, so the C++ compiler
! rejects the conversion of a temporary array to a pointer.  For instance,
! if the array compound literal example above appeared inside a function,
! any subsequent use of 'foo' in C++ has undefined behavior because the
! lifetime of the array ends after the declaration of 'foo'.
  
   As an optimization, the C++ compiler sometimes gives array compound
  literals longer lifetimes: when the array either appears outside a
! function or has const-qualified type.  If 'foo' and its initializer had
! elements of 'char *const' type rather than 'char *', or if 'foo' were a
  global variable, the array would have static storage duration.  But it
  is probably safest just to avoid the use of array compound literals in
  code compiled as C++.
*************** indices or structure field names they ap
*** 25717,25723 ****
  an extension in C90 mode as well.  This extension is not implemented in
  GNU C++.
  
!  To specify an array index, write `[INDEX] =' before the element value.
  For example,
  
       int a[6] = { [4] = 29, [2] = 15 };
--- 25571,25577 ----
  an extension in C90 mode as well.  This extension is not implemented in
  GNU C++.
  
!  To specify an array index, write '[INDEX] =' before the element value.
  For example,
  
       int a[6] = { [4] = 29, [2] = 15 };
*************** The index values must be constant expres
*** 25730,25739 ****
  initialized is automatic.
  
   An alternative syntax for this that has been obsolete since GCC 2.5 but
! GCC still accepts is to write `[INDEX]' before the element value, with
! no `='.
  
!  To initialize a range of elements to the same value, write `[FIRST ...
  LAST] = VALUE'.  This is a GNU extension.  For example,
  
       int widths[] = { [0 ... 9] = 1, [10 ... 99] = 2, [100] = 3 };
--- 25584,25593 ----
  initialized is automatic.
  
   An alternative syntax for this that has been obsolete since GCC 2.5 but
! GCC still accepts is to write '[INDEX]' before the element value, with
! no '='.
  
!  To initialize a range of elements to the same value, write '[FIRST ...
  LAST] = VALUE'.  This is a GNU extension.  For example,
  
       int widths[] = { [0 ... 9] = 1, [10 ... 99] = 2, [100] = 3 };
*************** Note that the length of the array is the
*** 25745,25751 ****
  one.
  
   In a structure initializer, specify the name of a field to initialize
! with `.FIELDNAME =' before the element value.  For example, given the
  following structure,
  
       struct point { int x, y; };
--- 25599,25605 ----
  one.
  
   In a structure initializer, specify the name of a field to initialize
! with '.FIELDNAME =' before the element value.  For example, given the
  following structure,
  
       struct point { int x, y; };
*************** is equivalent to
*** 25759,25783 ****
       struct point p = { xvalue, yvalue };
  
   Another syntax that has the same meaning, obsolete since GCC 2.5, is
! `FIELDNAME:', as shown here:
  
       struct point p = { y: yvalue, x: xvalue };
  
   Omitted field members are implicitly initialized the same as objects
  that have static storage duration.
  
!  The `[INDEX]' or `.FIELDNAME' is known as a "designator".  You can
! also use a designator (or the obsolete colon syntax) when initializing
! a union, to specify which element of the union should be used.  For
  example,
  
       union foo { int i; double d; };
  
       union foo f = { .d = 4 };
  
! converts 4 to a `double' to store it in the union using the second
! element.  By contrast, casting 4 to type `union foo' stores it into the
! union as the integer `i', since it is an integer.  (*Note Cast to
  Union::.)
  
   You can combine this technique of naming elements with ordinary C
--- 25613,25637 ----
       struct point p = { xvalue, yvalue };
  
   Another syntax that has the same meaning, obsolete since GCC 2.5, is
! 'FIELDNAME:', as shown here:
  
       struct point p = { y: yvalue, x: xvalue };
  
   Omitted field members are implicitly initialized the same as objects
  that have static storage duration.
  
!  The '[INDEX]' or '.FIELDNAME' is known as a "designator".  You can also
! use a designator (or the obsolete colon syntax) when initializing a
! union, to specify which element of the union should be used.  For
  example,
  
       union foo { int i; double d; };
  
       union foo f = { .d = 4 };
  
! converts 4 to a 'double' to store it in the union using the second
! element.  By contrast, casting 4 to type 'union foo' stores it into the
! union as the integer 'i', since it is an integer.  (*Note Cast to
  Union::.)
  
   You can combine this technique of naming elements with ordinary C
*************** is equivalent to
*** 25791,25809 ****
  
       int a[6] = { 0, v1, v2, 0, v4, 0 };
  
!  Labeling the elements of an array initializer is especially useful
! when the indices are characters or belong to an `enum' type.  For
! example:
  
       int whitespace[256]
         = { [' '] = 1, ['\t'] = 1, ['\h'] = 1,
             ['\f'] = 1, ['\n'] = 1, ['\r'] = 1 };
  
!  You can also write a series of `.FIELDNAME' and `[INDEX]' designators
! before an `=' to specify a nested subobject to initialize; the list is
! taken relative to the subobject corresponding to the closest
! surrounding brace pair.  For example, with the `struct point'
! declaration above:
  
       struct point ptarray[10] = { [2].y = yv2, [2].x = xv2, [0].x = xv0 };
  
--- 25645,25661 ----
  
       int a[6] = { 0, v1, v2, 0, v4, 0 };
  
!  Labeling the elements of an array initializer is especially useful when
! the indices are characters or belong to an 'enum' type.  For example:
  
       int whitespace[256]
         = { [' '] = 1, ['\t'] = 1, ['\h'] = 1,
             ['\f'] = 1, ['\n'] = 1, ['\r'] = 1 };
  
!  You can also write a series of '.FIELDNAME' and '[INDEX]' designators
! before an '=' to specify a nested subobject to initialize; the list is
! taken relative to the subobject corresponding to the closest surrounding
! brace pair.  For example, with the 'struct point' declaration above:
  
       struct point ptarray[10] = { [2].y = yv2, [2].x = xv2, [0].x = xv0 };
  
*************** File: gcc.info,  Node: Case Ranges,  Nex
*** 25818,25836 ****
  6.28 Case Ranges
  ================
  
! You can specify a range of consecutive values in a single `case' label,
  like this:
  
       case LOW ... HIGH:
  
! This has the same effect as the proper number of individual `case'
  labels, one for each integer value from LOW to HIGH, inclusive.
  
   This feature is especially useful for ranges of ASCII character codes:
  
       case 'A' ... 'Z':
  
!  *Be careful:* Write spaces around the `...', for otherwise it may be
  parsed wrong when you use it with integer values.  For example, write
  this:
  
--- 25670,25688 ----
  6.28 Case Ranges
  ================
  
! You can specify a range of consecutive values in a single 'case' label,
  like this:
  
       case LOW ... HIGH:
  
! This has the same effect as the proper number of individual 'case'
  labels, one for each integer value from LOW to HIGH, inclusive.
  
   This feature is especially useful for ranges of ASCII character codes:
  
       case 'A' ... 'Z':
  
!  *Be careful:* Write spaces around the '...', for otherwise it may be
  parsed wrong when you use it with integer values.  For example, write
  this:
  
*************** File: gcc.info,  Node: Cast to Union,  N
*** 25847,25856 ****
  =========================
  
  A cast to union type is similar to other casts, except that the type
! specified is a union type.  You can specify the type either with `union
! TAG' or with a typedef name.  A cast to union is actually a
! constructor, not a cast, and hence does not yield an lvalue like normal
! casts.  (*Note Compound Literals::.)
  
   The types that may be cast to the union type are those of the members
  of the union.  Thus, given the following union and variables:
--- 25699,25708 ----
  =========================
  
  A cast to union type is similar to other casts, except that the type
! specified is a union type.  You can specify the type either with 'union
! TAG' or with a typedef name.  A cast to union is actually a constructor,
! not a cast, and hence does not yield an lvalue like normal casts.
! (*Note Compound Literals::.)
  
   The types that may be cast to the union type are those of the members
  of the union.  Thus, given the following union and variables:
*************** of the union.  Thus, given the following
*** 25859,25865 ****
       int x;
       double y;
  
! both `x' and `y' can be cast to type `union foo'.
  
   Using the cast as the right-hand side of an assignment to a variable of
  union type is equivalent to storing in a member of the union:
--- 25711,25717 ----
       int x;
       double y;
  
! both 'x' and 'y' can be cast to type 'union foo'.
  
   Using the cast as the right-hand side of an assignment to a variable of
  union type is equivalent to storing in a member of the union:
*************** File: gcc.info,  Node: Function Attribut
*** 25902,25936 ****
  In GNU C, you can use function attributes to declare certain things
  about functions called in your program which help the compiler optimize
  calls and check your code more carefully.  For example, you can use
! attributes to declare that a function never returns (`noreturn'),
! returns a value depending only on its arguments (`pure'), or has
! `printf'-style arguments (`format').
  
   You can also use attributes to control memory placement, code
  generation options or call/return conventions within the function being
  annotated.  Many of these attributes are target-specific.  For example,
  many targets support attributes for defining interrupt handler
! functions, which typically must follow special register usage and
! return conventions.
  
!  Function attributes are introduced by the `__attribute__' keyword on a
  declaration, followed by an attribute specification inside double
  parentheses.  You can specify multiple attributes in a declaration by
  separating them by commas within the double parentheses or by
  immediately following an attribute declaration with another attribute
! declaration.  *Note Attribute Syntax::, for the exact rules on
! attribute syntax and placement.
  
   GCC also supports attributes on variable declarations (*note Variable
  Attributes::), labels (*note Label Attributes::), enumerators (*note
  Enumerator Attributes::), and types (*note Type Attributes::).
  
   There is some overlap between the purposes of attributes and pragmas
! (*note Pragmas Accepted by GCC: Pragmas.).  It has been found
! convenient to use `__attribute__' to achieve a natural attachment of
! attributes to their corresponding declarations, whereas `#pragma' is of
! use for compatibility with other compilers or constructs that do not
! naturally form part of the grammar.
  
   In addition to the attributes documented here, GCC plugins may provide
  their own attributes.
--- 25754,25788 ----
  In GNU C, you can use function attributes to declare certain things
  about functions called in your program which help the compiler optimize
  calls and check your code more carefully.  For example, you can use
! attributes to declare that a function never returns ('noreturn'),
! returns a value depending only on its arguments ('pure'), or has
! 'printf'-style arguments ('format').
  
   You can also use attributes to control memory placement, code
  generation options or call/return conventions within the function being
  annotated.  Many of these attributes are target-specific.  For example,
  many targets support attributes for defining interrupt handler
! functions, which typically must follow special register usage and return
! conventions.
  
!  Function attributes are introduced by the '__attribute__' keyword on a
  declaration, followed by an attribute specification inside double
  parentheses.  You can specify multiple attributes in a declaration by
  separating them by commas within the double parentheses or by
  immediately following an attribute declaration with another attribute
! declaration.  *Note Attribute Syntax::, for the exact rules on attribute
! syntax and placement.
  
   GCC also supports attributes on variable declarations (*note Variable
  Attributes::), labels (*note Label Attributes::), enumerators (*note
  Enumerator Attributes::), and types (*note Type Attributes::).
  
   There is some overlap between the purposes of attributes and pragmas
! (*note Pragmas Accepted by GCC: Pragmas.).  It has been found convenient
! to use '__attribute__' to achieve a natural attachment of attributes to
! their corresponding declarations, whereas '#pragma' is of use for
! compatibility with other compilers or constructs that do not naturally
! form part of the grammar.
  
   In addition to the attributes documented here, GCC plugins may provide
  their own attributes.
*************** File: gcc.info,  Node: Common Function A
*** 25979,26023 ****
  
  The following attributes are supported on most targets.
  
! `alias ("TARGET")'
!      The `alias' attribute causes the declaration to be emitted as an
       alias for another symbol, which must be specified.  For instance,
  
            void __f () { /* Do something. */; }
            void f () __attribute__ ((weak, alias ("__f")));
  
!      defines `f' to be a weak alias for `__f'.  In C++, the mangled
!      name for the target must be used.  It is an error if `__f' is not
       defined in the same translation unit.
  
       This attribute requires assembler and object file support, and may
       not be available on all targets.
  
! `aligned (ALIGNMENT)'
       This attribute specifies a minimum alignment for the function,
       measured in bytes.
  
       You cannot use this attribute to decrease the alignment of a
       function, only to increase it.  However, when you explicitly
       specify a function alignment this overrides the effect of the
!      `-falign-functions' (*note Optimize Options::) option for this
       function.
  
!      Note that the effectiveness of `aligned' attributes may be limited
       by inherent limitations in your linker.  On many systems, the
       linker is only able to arrange for functions to be aligned up to a
       certain maximum alignment.  (For some linkers, the maximum
       supported alignment may be very very small.)  See your linker
       documentation for further information.
  
!      The `aligned' attribute can also be used for variables and fields
       (*note Variable Attributes::.)
  
! `alloc_align'
!      The `alloc_align' attribute is used to tell the compiler that the
       function return value points to memory, where the returned pointer
!      minimum alignment is given by one of the functions parameters.
!      GCC uses this information to improve pointer alignment analysis.
  
       The function parameter denoting the allocated alignment is
       specified by one integer argument, whose number is the argument of
--- 25831,25875 ----
  
  The following attributes are supported on most targets.
  
! 'alias ("TARGET")'
!      The 'alias' attribute causes the declaration to be emitted as an
       alias for another symbol, which must be specified.  For instance,
  
            void __f () { /* Do something. */; }
            void f () __attribute__ ((weak, alias ("__f")));
  
!      defines 'f' to be a weak alias for '__f'.  In C++, the mangled name
!      for the target must be used.  It is an error if '__f' is not
       defined in the same translation unit.
  
       This attribute requires assembler and object file support, and may
       not be available on all targets.
  
! 'aligned (ALIGNMENT)'
       This attribute specifies a minimum alignment for the function,
       measured in bytes.
  
       You cannot use this attribute to decrease the alignment of a
       function, only to increase it.  However, when you explicitly
       specify a function alignment this overrides the effect of the
!      '-falign-functions' (*note Optimize Options::) option for this
       function.
  
!      Note that the effectiveness of 'aligned' attributes may be limited
       by inherent limitations in your linker.  On many systems, the
       linker is only able to arrange for functions to be aligned up to a
       certain maximum alignment.  (For some linkers, the maximum
       supported alignment may be very very small.)  See your linker
       documentation for further information.
  
!      The 'aligned' attribute can also be used for variables and fields
       (*note Variable Attributes::.)
  
! 'alloc_align'
!      The 'alloc_align' attribute is used to tell the compiler that the
       function return value points to memory, where the returned pointer
!      minimum alignment is given by one of the functions parameters.  GCC
!      uses this information to improve pointer alignment analysis.
  
       The function parameter denoting the allocated alignment is
       specified by one integer argument, whose number is the argument of
*************** The following attributes are supported o
*** 26027,26057 ****
  
            void* my_memalign(size_t, size_t) __attribute__((alloc_align(1)))
  
!      declares that `my_memalign' returns memory with minimum alignment
       given by parameter 1.
  
! `alloc_size'
!      The `alloc_size' attribute is used to tell the compiler that the
       function return value points to memory, where the size is given by
       one or two of the functions parameters.  GCC uses this information
!      to improve the correctness of `__builtin_object_size'.
  
!      The function parameter(s) denoting the allocated size are
!      specified by one or two integer arguments supplied to the
!      attribute.  The allocated size is either the value of the single
!      function argument specified or the product of the two function
!      arguments specified.  Argument numbering starts at one.
  
       For instance,
  
            void* my_calloc(size_t, size_t) __attribute__((alloc_size(1,2)))
            void* my_realloc(void*, size_t) __attribute__((alloc_size(2)))
  
!      declares that `my_calloc' returns memory of the size given by the
!      product of parameter 1 and 2 and that `my_realloc' returns memory
       of the size given by parameter 2.
  
! `always_inline'
       Generally, functions are not inlined unless optimization is
       specified.  For functions declared inline, this attribute inlines
       the function independent of any restrictions that otherwise apply
--- 25879,25909 ----
  
            void* my_memalign(size_t, size_t) __attribute__((alloc_align(1)))
  
!      declares that 'my_memalign' returns memory with minimum alignment
       given by parameter 1.
  
! 'alloc_size'
!      The 'alloc_size' attribute is used to tell the compiler that the
       function return value points to memory, where the size is given by
       one or two of the functions parameters.  GCC uses this information
!      to improve the correctness of '__builtin_object_size'.
  
!      The function parameter(s) denoting the allocated size are specified
!      by one or two integer arguments supplied to the attribute.  The
!      allocated size is either the value of the single function argument
!      specified or the product of the two function arguments specified.
!      Argument numbering starts at one.
  
       For instance,
  
            void* my_calloc(size_t, size_t) __attribute__((alloc_size(1,2)))
            void* my_realloc(void*, size_t) __attribute__((alloc_size(2)))
  
!      declares that 'my_calloc' returns memory of the size given by the
!      product of parameter 1 and 2 and that 'my_realloc' returns memory
       of the size given by parameter 2.
  
! 'always_inline'
       Generally, functions are not inlined unless optimization is
       specified.  For functions declared inline, this attribute inlines
       the function independent of any restrictions that otherwise apply
*************** The following attributes are supported o
*** 26061,26075 ****
       and a failure to inline an indirect call may or may not be
       diagnosed.
  
! `artificial'
       This attribute is useful for small inline wrappers that if possible
       should appear during debugging as a unit.  Depending on the debug
       info format it either means marking the function as artificial or
       using the caller location for all instructions within the inlined
       body.
  
! `assume_aligned'
!      The `assume_aligned' attribute is used to tell the compiler that
       the function return value points to memory, where the returned
       pointer minimum alignment is given by the first argument.  If the
       attribute has two arguments, the second argument is misalignment
--- 25913,25927 ----
       and a failure to inline an indirect call may or may not be
       diagnosed.
  
! 'artificial'
       This attribute is useful for small inline wrappers that if possible
       should appear during debugging as a unit.  Depending on the debug
       info format it either means marking the function as artificial or
       using the caller location for all instructions within the inlined
       body.
  
! 'assume_aligned'
!      The 'assume_aligned' attribute is used to tell the compiler that
       the function return value points to memory, where the returned
       pointer minimum alignment is given by the first argument.  If the
       attribute has two arguments, the second argument is misalignment
*************** The following attributes are supported o
*** 26080,26100 ****
            void* my_alloc1(size_t) __attribute__((assume_aligned(16)))
            void* my_alloc2(size_t) __attribute__((assume_aligned(32, 8)))
  
!      declares that `my_alloc1' returns 16-byte aligned pointer and that
!      `my_alloc2' returns a pointer whose value modulo 32 is equal to 8.
  
! `bnd_instrument'
!      The `bnd_instrument' attribute on functions is used to inform the
       compiler that the function should be instrumented when compiled
!      with the `-fchkp-instrument-marked-only' option.
  
! `bnd_legacy'
!      The `bnd_legacy' attribute on functions is used to inform the
       compiler that the function should not be instrumented when compiled
!      with the `-fcheck-pointer-bounds' option.
  
! `cold'
!      The `cold' attribute on functions is used to inform the compiler
       that the function is unlikely to be executed.  The function is
       optimized for size rather than speed and on many targets it is
       placed into a special subsection of the text section so all cold
--- 25932,25952 ----
            void* my_alloc1(size_t) __attribute__((assume_aligned(16)))
            void* my_alloc2(size_t) __attribute__((assume_aligned(32, 8)))
  
!      declares that 'my_alloc1' returns 16-byte aligned pointer and that
!      'my_alloc2' returns a pointer whose value modulo 32 is equal to 8.
  
! 'bnd_instrument'
!      The 'bnd_instrument' attribute on functions is used to inform the
       compiler that the function should be instrumented when compiled
!      with the '-fchkp-instrument-marked-only' option.
  
! 'bnd_legacy'
!      The 'bnd_legacy' attribute on functions is used to inform the
       compiler that the function should not be instrumented when compiled
!      with the '-fcheck-pointer-bounds' option.
  
! 'cold'
!      The 'cold' attribute on functions is used to inform the compiler
       that the function is unlikely to be executed.  The function is
       optimized for size rather than speed and on many targets it is
       placed into a special subsection of the text section so all cold
*************** The following attributes are supported o
*** 26102,26134 ****
       non-cold parts of program.  The paths leading to calls of cold
       functions within code are marked as unlikely by the branch
       prediction mechanism.  It is thus useful to mark functions used to
!      handle unlikely conditions, such as `perror', as cold to improve
!      optimization of hot functions that do call marked functions in
!      rare occasions.
  
!      When profile feedback is available, via `-fprofile-use', cold
       functions are automatically detected and this attribute is ignored.
  
! `const'
       Many functions do not examine any values except their arguments,
       and have no effects except the return value.  Basically this is
!      just slightly more strict class than the `pure' attribute below,
       since function is not allowed to read global memory.
  
       Note that a function that has pointer arguments and examines the
!      data pointed to must _not_ be declared `const'.  Likewise, a
!      function that calls a non-`const' function usually must not be
!      `const'.  It does not make sense for a `const' function to return
!      `void'.
  
! `constructor'
! `destructor'
! `constructor (PRIORITY)'
! `destructor (PRIORITY)'
!      The `constructor' attribute causes the function to be called
!      automatically before execution enters `main ()'.  Similarly, the
!      `destructor' attribute causes the function to be called
!      automatically after `main ()' completes or `exit ()' is called.
       Functions with these attributes are useful for initializing data
       that is used implicitly during the execution of the program.
  
--- 25954,25986 ----
       non-cold parts of program.  The paths leading to calls of cold
       functions within code are marked as unlikely by the branch
       prediction mechanism.  It is thus useful to mark functions used to
!      handle unlikely conditions, such as 'perror', as cold to improve
!      optimization of hot functions that do call marked functions in rare
!      occasions.
  
!      When profile feedback is available, via '-fprofile-use', cold
       functions are automatically detected and this attribute is ignored.
  
! 'const'
       Many functions do not examine any values except their arguments,
       and have no effects except the return value.  Basically this is
!      just slightly more strict class than the 'pure' attribute below,
       since function is not allowed to read global memory.
  
       Note that a function that has pointer arguments and examines the
!      data pointed to must _not_ be declared 'const'.  Likewise, a
!      function that calls a non-'const' function usually must not be
!      'const'.  It does not make sense for a 'const' function to return
!      'void'.
  
! 'constructor'
! 'destructor'
! 'constructor (PRIORITY)'
! 'destructor (PRIORITY)'
!      The 'constructor' attribute causes the function to be called
!      automatically before execution enters 'main ()'.  Similarly, the
!      'destructor' attribute causes the function to be called
!      automatically after 'main ()' completes or 'exit ()' is called.
       Functions with these attributes are useful for initializing data
       that is used implicitly during the execution of the program.
  
*************** The following attributes are supported o
*** 26145,26153 ****
  
       These attributes are not currently implemented for Objective-C.
  
! `deprecated'
! `deprecated (MSG)'
!      The `deprecated' attribute results in a warning if the function is
       used anywhere in the source file.  This is useful when identifying
       functions that are expected to be removed in a future version of a
       program.  The warning also includes the location of the declaration
--- 25997,26005 ----
  
       These attributes are not currently implemented for Objective-C.
  
! 'deprecated'
! 'deprecated (MSG)'
!      The 'deprecated' attribute results in a warning if the function is
       used anywhere in the source file.  This is useful when identifying
       functions that are expected to be removed in a future version of a
       program.  The warning also includes the location of the declaration
*************** The following attributes are supported o
*** 26163,26212 ****
       argument, which must be a string, is printed in the warning if
       present.
  
!      The `deprecated' attribute can also be used for variables and
!      types (*note Variable Attributes::, *note Type Attributes::.)
  
! `error ("MESSAGE")'
! `warning ("MESSAGE")'
!      If the `error' or `warning' attribute is used on a function
!      declaration and a call to such a function is not eliminated
!      through dead code elimination or other optimizations, an error or
!      warning (respectively) that includes MESSAGE is diagnosed.  This
!      is useful for compile-time checking, especially together with
!      `__builtin_constant_p' and inline functions where checking the
!      inline function arguments is not possible through `extern char
       [(condition) ? 1 : -1];' tricks.
  
       While it is possible to leave the function undefined and thus
       invoke a link failure (to define the function with a message in
!      `.gnu.warning*' section), when using these attributes the problem
       is diagnosed earlier and with exact location of the call even in
       presence of inline functions or when not emitting debugging
       information.
  
! `externally_visible'
       This attribute, attached to a global variable or function,
!      nullifies the effect of the `-fwhole-program' command-line option,
       so the object remains visible outside the current compilation unit.
  
!      If `-fwhole-program' is used together with `-flto' and `gold' is
!      used as the linker plugin, `externally_visible' attributes are
!      automatically added to functions (not variable yet due to a
!      current `gold' issue) that are accessed outside of LTO objects
!      according to resolution file produced by `gold'.  For other
!      linkers that cannot generate resolution file, explicit
!      `externally_visible' attributes are still necessary.
  
! `flatten'
       Generally, inlining into a function is limited.  For a function
       marked with this attribute, every call inside this function is
       inlined, if possible.  Whether the function itself is considered
       for inlining depends on its size and the current inlining
       parameters.
  
! `format (ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK)'
!      The `format' attribute specifies that a function takes `printf',
!      `scanf', `strftime' or `strfmon' style arguments that should be
       type-checked against a format string.  For example, the
       declaration:
  
--- 26015,26064 ----
       argument, which must be a string, is printed in the warning if
       present.
  
!      The 'deprecated' attribute can also be used for variables and types
!      (*note Variable Attributes::, *note Type Attributes::.)
  
! 'error ("MESSAGE")'
! 'warning ("MESSAGE")'
!      If the 'error' or 'warning' attribute is used on a function
!      declaration and a call to such a function is not eliminated through
!      dead code elimination or other optimizations, an error or warning
!      (respectively) that includes MESSAGE is diagnosed.  This is useful
!      for compile-time checking, especially together with
!      '__builtin_constant_p' and inline functions where checking the
!      inline function arguments is not possible through 'extern char
       [(condition) ? 1 : -1];' tricks.
  
       While it is possible to leave the function undefined and thus
       invoke a link failure (to define the function with a message in
!      '.gnu.warning*' section), when using these attributes the problem
       is diagnosed earlier and with exact location of the call even in
       presence of inline functions or when not emitting debugging
       information.
  
! 'externally_visible'
       This attribute, attached to a global variable or function,
!      nullifies the effect of the '-fwhole-program' command-line option,
       so the object remains visible outside the current compilation unit.
  
!      If '-fwhole-program' is used together with '-flto' and 'gold' is
!      used as the linker plugin, 'externally_visible' attributes are
!      automatically added to functions (not variable yet due to a current
!      'gold' issue) that are accessed outside of LTO objects according to
!      resolution file produced by 'gold'.  For other linkers that cannot
!      generate resolution file, explicit 'externally_visible' attributes
!      are still necessary.
  
! 'flatten'
       Generally, inlining into a function is limited.  For a function
       marked with this attribute, every call inside this function is
       inlined, if possible.  Whether the function itself is considered
       for inlining depends on its size and the current inlining
       parameters.
  
! 'format (ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK)'
!      The 'format' attribute specifies that a function takes 'printf',
!      'scanf', 'strftime' or 'strfmon' style arguments that should be
       type-checked against a format string.  For example, the
       declaration:
  
*************** The following attributes are supported o
*** 26214,26383 ****
            my_printf (void *my_object, const char *my_format, ...)
                  __attribute__ ((format (printf, 2, 3)));
  
!      causes the compiler to check the arguments in calls to `my_printf'
!      for consistency with the `printf' style format string argument
!      `my_format'.
  
       The parameter ARCHETYPE determines how the format string is
!      interpreted, and should be `printf', `scanf', `strftime',
!      `gnu_printf', `gnu_scanf', `gnu_strftime' or `strfmon'.  (You can
!      also use `__printf__', `__scanf__', `__strftime__' or
!      `__strfmon__'.)  On MinGW targets, `ms_printf', `ms_scanf', and
!      `ms_strftime' are also present.  ARCHETYPE values such as `printf'
       refer to the formats accepted by the system's C runtime library,
!      while values prefixed with `gnu_' always refer to the formats
       accepted by the GNU C Library.  On Microsoft Windows targets,
!      values prefixed with `ms_' refer to the formats accepted by the
!      `msvcrt.dll' library.  The parameter STRING-INDEX specifies which
       argument is the format string argument (starting from 1), while
!      FIRST-TO-CHECK is the number of the first argument to check
!      against the format string.  For functions where the arguments are
!      not available to be checked (such as `vprintf'), specify the third
       parameter as zero.  In this case the compiler only checks the
!      format string for consistency.  For `strftime' formats, the third
       parameter is required to be zero.  Since non-static C++ methods
!      have an implicit `this' argument, the arguments of such methods
       should be counted from two, not one, when giving values for
       STRING-INDEX and FIRST-TO-CHECK.
  
!      In the example above, the format string (`my_format') is the second
!      argument of the function `my_print', and the arguments to check
       start with the third argument, so the correct parameters for the
       format attribute are 2 and 3.
  
!      The `format' attribute allows you to identify your own functions
       that take format strings as arguments, so that GCC can check the
       calls to these functions for errors.  The compiler always (unless
!      `-ffreestanding' or `-fno-builtin' is used) checks formats for the
!      standard library functions `printf', `fprintf', `sprintf',
!      `scanf', `fscanf', `sscanf', `strftime', `vprintf', `vfprintf' and
!      `vsprintf' whenever such warnings are requested (using
!      `-Wformat'), so there is no need to modify the header file
!      `stdio.h'.  In C99 mode, the functions `snprintf', `vsnprintf',
!      `vscanf', `vfscanf' and `vsscanf' are also checked.  Except in
!      strictly conforming C standard modes, the X/Open function
!      `strfmon' is also checked as are `printf_unlocked' and
!      `fprintf_unlocked'.  *Note Options Controlling C Dialect: C
!      Dialect Options.
  
!      For Objective-C dialects, `NSString' (or `__NSString__') is
       recognized in the same context.  Declarations including these
!      format attributes are parsed for correct syntax, however the
!      result of checking of such format strings is not yet defined, and
!      is not carried out by this version of the compiler.
  
       The target may also provide additional types of format checks.
       *Note Format Checks Specific to Particular Target Machines: Target
       Format Checks.
  
! `format_arg (STRING-INDEX)'
!      The `format_arg' attribute specifies that a function takes a format
!      string for a `printf', `scanf', `strftime' or `strfmon' style
!      function and modifies it (for example, to translate it into
!      another language), so the result can be passed to a `printf',
!      `scanf', `strftime' or `strfmon' style function (with the
!      remaining arguments to the format function the same as they would
!      have been for the unmodified string).  For example, the
!      declaration:
  
            extern char *
            my_dgettext (char *my_domain, const char *my_format)
                  __attribute__ ((format_arg (2)));
  
!      causes the compiler to check the arguments in calls to a `printf',
!      `scanf', `strftime' or `strfmon' type function, whose format
!      string argument is a call to the `my_dgettext' function, for
!      consistency with the format string argument `my_format'.  If the
!      `format_arg' attribute had not been specified, all the compiler
!      could tell in such calls to format functions would be that the
!      format string argument is not constant; this would generate a
!      warning when `-Wformat-nonliteral' is used, but the calls could
!      not be checked without the attribute.
  
       The parameter STRING-INDEX specifies which argument is the format
       string argument (starting from one).  Since non-static C++ methods
!      have an implicit `this' argument, the arguments of such methods
       should be counted from two.
  
!      The `format_arg' attribute allows you to identify your own
       functions that modify format strings, so that GCC can check the
!      calls to `printf', `scanf', `strftime' or `strfmon' type function
       whose operands are a call to one of your own function.  The
!      compiler always treats `gettext', `dgettext', and `dcgettext' in
       this manner except when strict ISO C support is requested by
!      `-ansi' or an appropriate `-std' option, or `-ffreestanding' or
!      `-fno-builtin' is used.  *Note Options Controlling C Dialect: C
       Dialect Options.
  
!      For Objective-C dialects, the `format-arg' attribute may refer to
!      an `NSString' reference for compatibility with the `format'
       attribute above.
  
!      The target may also allow additional types in `format-arg'
       attributes.  *Note Format Checks Specific to Particular Target
       Machines: Target Format Checks.
  
! `gnu_inline'
       This attribute should be used with a function that is also declared
!      with the `inline' keyword.  It directs GCC to treat the function
!      as if it were defined in gnu90 mode even when compiling in C99 or
       gnu99 mode.
  
!      If the function is declared `extern', then this definition of the
       function is used only for inlining.  In no case is the function
       compiled as a standalone function, not even if you take its address
       explicitly.  Such an address becomes an external reference, as if
       you had only declared the function, and had not defined it.  This
       has almost the effect of a macro.  The way to use this is to put a
       function definition in a header file with this attribute, and put
!      another copy of the function, without `extern', in a library file.
!      The definition in the header file causes most calls to the
!      function to be inlined.  If any uses of the function remain, they
!      refer to the single copy in the library.  Note that the two
!      definitions of the functions need not be precisely the same,
!      although if they do not have the same effect your program may
!      behave oddly.
  
!      In C, if the function is neither `extern' nor `static', then the
       function is compiled as a standalone function, as well as being
       inlined where possible.
  
!      This is how GCC traditionally handled functions declared `inline'.
!      Since ISO C99 specifies a different semantics for `inline', this
       function attribute is provided as a transition measure and as a
       useful feature in its own right.  This attribute is available in
!      GCC 4.1.3 and later.  It is available if either of the
!      preprocessor macros `__GNUC_GNU_INLINE__' or
!      `__GNUC_STDC_INLINE__' are defined.  *Note An Inline Function is
!      As Fast As a Macro: Inline.
  
!      In C++, this attribute does not depend on `extern' in any way, but
!      it still requires the `inline' keyword to enable its special
       behavior.
  
! `hot'
!      The `hot' attribute on a function is used to inform the compiler
       that the function is a hot spot of the compiled program.  The
       function is optimized more aggressively and on many targets it is
       placed into a special subsection of the text section so all hot
       functions appear close together, improving locality.
  
!      When profile feedback is available, via `-fprofile-use', hot
       functions are automatically detected and this attribute is ignored.
  
! `ifunc ("RESOLVER")'
!      The `ifunc' attribute is used to mark a function as an indirect
       function using the STT_GNU_IFUNC symbol type extension to the ELF
       standard.  This allows the resolution of the symbol value to be
       determined dynamically at load time, and an optimized version of
       the routine can be selected for the particular processor or other
       system characteristics determined then.  To use this attribute,
!      first define the implementation functions available, and a
!      resolver function that returns a pointer to the selected
!      implementation function.  The implementation functions'
!      declarations must match the API of the function being implemented,
!      the resolver's declaration is be a function returning pointer to
!      void function returning void:
  
            void *my_memcpy (void *dst, const void *src, size_t len)
            {
--- 26066,26231 ----
            my_printf (void *my_object, const char *my_format, ...)
                  __attribute__ ((format (printf, 2, 3)));
  
!      causes the compiler to check the arguments in calls to 'my_printf'
!      for consistency with the 'printf' style format string argument
!      'my_format'.
  
       The parameter ARCHETYPE determines how the format string is
!      interpreted, and should be 'printf', 'scanf', 'strftime',
!      'gnu_printf', 'gnu_scanf', 'gnu_strftime' or 'strfmon'.  (You can
!      also use '__printf__', '__scanf__', '__strftime__' or
!      '__strfmon__'.)  On MinGW targets, 'ms_printf', 'ms_scanf', and
!      'ms_strftime' are also present.  ARCHETYPE values such as 'printf'
       refer to the formats accepted by the system's C runtime library,
!      while values prefixed with 'gnu_' always refer to the formats
       accepted by the GNU C Library.  On Microsoft Windows targets,
!      values prefixed with 'ms_' refer to the formats accepted by the
!      'msvcrt.dll' library.  The parameter STRING-INDEX specifies which
       argument is the format string argument (starting from 1), while
!      FIRST-TO-CHECK is the number of the first argument to check against
!      the format string.  For functions where the arguments are not
!      available to be checked (such as 'vprintf'), specify the third
       parameter as zero.  In this case the compiler only checks the
!      format string for consistency.  For 'strftime' formats, the third
       parameter is required to be zero.  Since non-static C++ methods
!      have an implicit 'this' argument, the arguments of such methods
       should be counted from two, not one, when giving values for
       STRING-INDEX and FIRST-TO-CHECK.
  
!      In the example above, the format string ('my_format') is the second
!      argument of the function 'my_print', and the arguments to check
       start with the third argument, so the correct parameters for the
       format attribute are 2 and 3.
  
!      The 'format' attribute allows you to identify your own functions
       that take format strings as arguments, so that GCC can check the
       calls to these functions for errors.  The compiler always (unless
!      '-ffreestanding' or '-fno-builtin' is used) checks formats for the
!      standard library functions 'printf', 'fprintf', 'sprintf', 'scanf',
!      'fscanf', 'sscanf', 'strftime', 'vprintf', 'vfprintf' and
!      'vsprintf' whenever such warnings are requested (using '-Wformat'),
!      so there is no need to modify the header file 'stdio.h'.  In C99
!      mode, the functions 'snprintf', 'vsnprintf', 'vscanf', 'vfscanf'
!      and 'vsscanf' are also checked.  Except in strictly conforming C
!      standard modes, the X/Open function 'strfmon' is also checked as
!      are 'printf_unlocked' and 'fprintf_unlocked'.  *Note Options
!      Controlling C Dialect: C Dialect Options.
  
!      For Objective-C dialects, 'NSString' (or '__NSString__') is
       recognized in the same context.  Declarations including these
!      format attributes are parsed for correct syntax, however the result
!      of checking of such format strings is not yet defined, and is not
!      carried out by this version of the compiler.
  
       The target may also provide additional types of format checks.
       *Note Format Checks Specific to Particular Target Machines: Target
       Format Checks.
  
! 'format_arg (STRING-INDEX)'
!      The 'format_arg' attribute specifies that a function takes a format
!      string for a 'printf', 'scanf', 'strftime' or 'strfmon' style
!      function and modifies it (for example, to translate it into another
!      language), so the result can be passed to a 'printf', 'scanf',
!      'strftime' or 'strfmon' style function (with the remaining
!      arguments to the format function the same as they would have been
!      for the unmodified string).  For example, the declaration:
  
            extern char *
            my_dgettext (char *my_domain, const char *my_format)
                  __attribute__ ((format_arg (2)));
  
!      causes the compiler to check the arguments in calls to a 'printf',
!      'scanf', 'strftime' or 'strfmon' type function, whose format string
!      argument is a call to the 'my_dgettext' function, for consistency
!      with the format string argument 'my_format'.  If the 'format_arg'
!      attribute had not been specified, all the compiler could tell in
!      such calls to format functions would be that the format string
!      argument is not constant; this would generate a warning when
!      '-Wformat-nonliteral' is used, but the calls could not be checked
!      without the attribute.
  
       The parameter STRING-INDEX specifies which argument is the format
       string argument (starting from one).  Since non-static C++ methods
!      have an implicit 'this' argument, the arguments of such methods
       should be counted from two.
  
!      The 'format_arg' attribute allows you to identify your own
       functions that modify format strings, so that GCC can check the
!      calls to 'printf', 'scanf', 'strftime' or 'strfmon' type function
       whose operands are a call to one of your own function.  The
!      compiler always treats 'gettext', 'dgettext', and 'dcgettext' in
       this manner except when strict ISO C support is requested by
!      '-ansi' or an appropriate '-std' option, or '-ffreestanding' or
!      '-fno-builtin' is used.  *Note Options Controlling C Dialect: C
       Dialect Options.
  
!      For Objective-C dialects, the 'format-arg' attribute may refer to
!      an 'NSString' reference for compatibility with the 'format'
       attribute above.
  
!      The target may also allow additional types in 'format-arg'
       attributes.  *Note Format Checks Specific to Particular Target
       Machines: Target Format Checks.
  
! 'gnu_inline'
       This attribute should be used with a function that is also declared
!      with the 'inline' keyword.  It directs GCC to treat the function as
!      if it were defined in gnu90 mode even when compiling in C99 or
       gnu99 mode.
  
!      If the function is declared 'extern', then this definition of the
       function is used only for inlining.  In no case is the function
       compiled as a standalone function, not even if you take its address
       explicitly.  Such an address becomes an external reference, as if
       you had only declared the function, and had not defined it.  This
       has almost the effect of a macro.  The way to use this is to put a
       function definition in a header file with this attribute, and put
!      another copy of the function, without 'extern', in a library file.
!      The definition in the header file causes most calls to the function
!      to be inlined.  If any uses of the function remain, they refer to
!      the single copy in the library.  Note that the two definitions of
!      the functions need not be precisely the same, although if they do
!      not have the same effect your program may behave oddly.
  
!      In C, if the function is neither 'extern' nor 'static', then the
       function is compiled as a standalone function, as well as being
       inlined where possible.
  
!      This is how GCC traditionally handled functions declared 'inline'.
!      Since ISO C99 specifies a different semantics for 'inline', this
       function attribute is provided as a transition measure and as a
       useful feature in its own right.  This attribute is available in
!      GCC 4.1.3 and later.  It is available if either of the preprocessor
!      macros '__GNUC_GNU_INLINE__' or '__GNUC_STDC_INLINE__' are defined.
!      *Note An Inline Function is As Fast As a Macro: Inline.
  
!      In C++, this attribute does not depend on 'extern' in any way, but
!      it still requires the 'inline' keyword to enable its special
       behavior.
  
! 'hot'
!      The 'hot' attribute on a function is used to inform the compiler
       that the function is a hot spot of the compiled program.  The
       function is optimized more aggressively and on many targets it is
       placed into a special subsection of the text section so all hot
       functions appear close together, improving locality.
  
!      When profile feedback is available, via '-fprofile-use', hot
       functions are automatically detected and this attribute is ignored.
  
! 'ifunc ("RESOLVER")'
!      The 'ifunc' attribute is used to mark a function as an indirect
       function using the STT_GNU_IFUNC symbol type extension to the ELF
       standard.  This allows the resolution of the symbol value to be
       determined dynamically at load time, and an optimized version of
       the routine can be selected for the particular processor or other
       system characteristics determined then.  To use this attribute,
!      first define the implementation functions available, and a resolver
!      function that returns a pointer to the selected implementation
!      function.  The implementation functions' declarations must match
!      the API of the function being implemented, the resolver's
!      declaration is be a function returning pointer to void function
!      returning void:
  
            void *my_memcpy (void *dst, const void *src, size_t len)
            {
*************** The following attributes are supported o
*** 26405,26448 ****
       higher and GNU C Library version 2.11.1 are required to use this
       feature.
  
! `interrupt'
! `interrupt_handler'
       Many GCC back ends support attributes to indicate that a function
       is an interrupt handler, which tells the compiler to generate
       function entry and exit sequences that differ from those from
       regular functions.  The exact syntax and behavior are
       target-specific; refer to the following subsections for details.
  
! `leaf'
       Calls to external functions with this attribute must return to the
       current compilation unit only by return or by exception handling.
       In particular, a leaf function is not allowed to invoke callback
       functions passed to it from the current compilation unit, directly
!      call functions exported by the unit, or `longjmp' into the unit.
       Leaf functions might still call functions from other compilation
!      units and thus they are not necessarily leaf in the sense that
!      they contain no function calls at all.
  
       The attribute is intended for library functions to improve dataflow
       analysis.  The compiler takes the hint that any data not escaping
       the current compilation unit cannot be used or modified by the leaf
!      function.  For example, the `sin' function is a leaf function, but
!      `qsort' is not.
  
       Note that leaf functions might indirectly run a signal handler
!      defined in the current compilation unit that uses static
!      variables.  Similarly, when lazy symbol resolution is in effect,
!      leaf functions might invoke indirect functions whose resolver
!      function or implementation function is defined in the current
!      compilation unit and uses static variables.  There is no
!      standard-compliant way to write such a signal handler, resolver
!      function, or implementation function, and the best that you can do
!      is to remove the `leaf' attribute or mark all such static variables
!      `volatile'.  Lastly, for ELF-based systems that support symbol
!      interposition, care should be taken that functions defined in the
!      current compilation unit do not unexpectedly interpose other
!      symbols based on the defined standards mode and defined feature
!      test macros; otherwise an inadvertent callback would be added.
  
       The attribute has no effect on functions defined within the current
       compilation unit.  This is to allow easy merging of multiple
--- 26253,26296 ----
       higher and GNU C Library version 2.11.1 are required to use this
       feature.
  
! 'interrupt'
! 'interrupt_handler'
       Many GCC back ends support attributes to indicate that a function
       is an interrupt handler, which tells the compiler to generate
       function entry and exit sequences that differ from those from
       regular functions.  The exact syntax and behavior are
       target-specific; refer to the following subsections for details.
  
! 'leaf'
       Calls to external functions with this attribute must return to the
       current compilation unit only by return or by exception handling.
       In particular, a leaf function is not allowed to invoke callback
       functions passed to it from the current compilation unit, directly
!      call functions exported by the unit, or 'longjmp' into the unit.
       Leaf functions might still call functions from other compilation
!      units and thus they are not necessarily leaf in the sense that they
!      contain no function calls at all.
  
       The attribute is intended for library functions to improve dataflow
       analysis.  The compiler takes the hint that any data not escaping
       the current compilation unit cannot be used or modified by the leaf
!      function.  For example, the 'sin' function is a leaf function, but
!      'qsort' is not.
  
       Note that leaf functions might indirectly run a signal handler
!      defined in the current compilation unit that uses static variables.
!      Similarly, when lazy symbol resolution is in effect, leaf functions
!      might invoke indirect functions whose resolver function or
!      implementation function is defined in the current compilation unit
!      and uses static variables.  There is no standard-compliant way to
!      write such a signal handler, resolver function, or implementation
!      function, and the best that you can do is to remove the 'leaf'
!      attribute or mark all such static variables 'volatile'.  Lastly,
!      for ELF-based systems that support symbol interposition, care
!      should be taken that functions defined in the current compilation
!      unit do not unexpectedly interpose other symbols based on the
!      defined standards mode and defined feature test macros; otherwise
!      an inadvertent callback would be added.
  
       The attribute has no effect on functions defined within the current
       compilation unit.  This is to allow easy merging of multiple
*************** The following attributes are supported o
*** 26450,26522 ****
       optimization.  For this reason the attribute is not allowed on
       types to annotate indirect calls.
  
! `malloc'
!      This tells the compiler that a function is `malloc'-like, i.e.,
       that the pointer P returned by the function cannot alias any other
       pointer valid when the function returns, and moreover no pointers
       to valid objects occur in any storage addressed by P.
  
       Using this attribute can improve optimization.  Functions like
!      `malloc' and `calloc' have this property because they return a
       pointer to uninitialized or zeroed-out storage.  However, functions
!      like `realloc' do not have this property, as they can return a
       pointer to storage containing pointers.
  
! `no_icf'
!      This function attribute prevents a functions from being merged
!      with another semantically equivalent function.
  
! `no_instrument_function'
!      If `-finstrument-functions' is given, profiling function calls are
       generated at entry and exit of most user-compiled functions.
       Functions with this attribute are not so instrumented.
  
! `no_reorder'
!      Do not reorder functions or variables marked `no_reorder' against
       each other or top level assembler statements the executable.  The
!      actual order in the program will depend on the linker command
!      line. Static variables marked like this are also not removed.
!      This has a similar effect as the `-fno-toplevel-reorder' option,
!      but only applies to the marked symbols.
  
! `no_sanitize_address'
! `no_address_safety_analysis'
!      The `no_sanitize_address' attribute on functions is used to inform
       the compiler that it should not instrument memory accesses in the
!      function when compiling with the `-fsanitize=address' option.  The
!      `no_address_safety_analysis' is a deprecated alias of the
!      `no_sanitize_address' attribute, new code should use
!      `no_sanitize_address'.
  
! `no_sanitize_thread'
!      The `no_sanitize_thread' attribute on functions is used to inform
       the compiler that it should not instrument memory accesses in the
!      function when compiling with the `-fsanitize=thread' option.
  
! `no_sanitize_undefined'
!      The `no_sanitize_undefined' attribute on functions is used to
       inform the compiler that it should not check for undefined behavior
!      in the function when compiling with the `-fsanitize=undefined'
       option.
  
! `no_split_stack'
!      If `-fsplit-stack' is given, functions have a small prologue which
       decides whether to split the stack.  Functions with the
!      `no_split_stack' attribute do not have that prologue, and thus may
       run with only a small amount of stack space available.
  
! `no_stack_limit'
!      This attribute locally overrides the `-fstack-limit-register' and
!      `-fstack-limit-symbol' command-line options; it has the effect of
       disabling stack limit checking in the function it applies to.
  
! `noclone'
       This function attribute prevents a function from being considered
       for cloning--a mechanism that produces specialized copies of
       functions and which is (currently) performed by interprocedural
       constant propagation.
  
! `noinline'
       This function attribute prevents a function from being considered
       for inlining.  If the function does not have side-effects, there
       are optimizations other than inlining that cause function calls to
--- 26298,26370 ----
       optimization.  For this reason the attribute is not allowed on
       types to annotate indirect calls.
  
! 'malloc'
!      This tells the compiler that a function is 'malloc'-like, i.e.,
       that the pointer P returned by the function cannot alias any other
       pointer valid when the function returns, and moreover no pointers
       to valid objects occur in any storage addressed by P.
  
       Using this attribute can improve optimization.  Functions like
!      'malloc' and 'calloc' have this property because they return a
       pointer to uninitialized or zeroed-out storage.  However, functions
!      like 'realloc' do not have this property, as they can return a
       pointer to storage containing pointers.
  
! 'no_icf'
!      This function attribute prevents a functions from being merged with
!      another semantically equivalent function.
  
! 'no_instrument_function'
!      If '-finstrument-functions' is given, profiling function calls are
       generated at entry and exit of most user-compiled functions.
       Functions with this attribute are not so instrumented.
  
! 'no_reorder'
!      Do not reorder functions or variables marked 'no_reorder' against
       each other or top level assembler statements the executable.  The
!      actual order in the program will depend on the linker command line.
!      Static variables marked like this are also not removed.  This has a
!      similar effect as the '-fno-toplevel-reorder' option, but only
!      applies to the marked symbols.
  
! 'no_sanitize_address'
! 'no_address_safety_analysis'
!      The 'no_sanitize_address' attribute on functions is used to inform
       the compiler that it should not instrument memory accesses in the
!      function when compiling with the '-fsanitize=address' option.  The
!      'no_address_safety_analysis' is a deprecated alias of the
!      'no_sanitize_address' attribute, new code should use
!      'no_sanitize_address'.
  
! 'no_sanitize_thread'
!      The 'no_sanitize_thread' attribute on functions is used to inform
       the compiler that it should not instrument memory accesses in the
!      function when compiling with the '-fsanitize=thread' option.
  
! 'no_sanitize_undefined'
!      The 'no_sanitize_undefined' attribute on functions is used to
       inform the compiler that it should not check for undefined behavior
!      in the function when compiling with the '-fsanitize=undefined'
       option.
  
! 'no_split_stack'
!      If '-fsplit-stack' is given, functions have a small prologue which
       decides whether to split the stack.  Functions with the
!      'no_split_stack' attribute do not have that prologue, and thus may
       run with only a small amount of stack space available.
  
! 'no_stack_limit'
!      This attribute locally overrides the '-fstack-limit-register' and
!      '-fstack-limit-symbol' command-line options; it has the effect of
       disabling stack limit checking in the function it applies to.
  
! 'noclone'
       This function attribute prevents a function from being considered
       for cloning--a mechanism that produces specialized copies of
       functions and which is (currently) performed by interprocedural
       constant propagation.
  
! 'noinline'
       This function attribute prevents a function from being considered
       for inlining.  If the function does not have side-effects, there
       are optimizations other than inlining that cause function calls to
*************** The following attributes are supported o
*** 26527,26549 ****
       (*note Extended Asm::) in the called function, to serve as a
       special side-effect.
  
! `nonnull (ARG-INDEX, ...)'
!      The `nonnull' attribute specifies that some function parameters
       should be non-null pointers.  For instance, the declaration:
  
            extern void *
            my_memcpy (void *dest, const void *src, size_t len)
                    __attribute__((nonnull (1, 2)));
  
!      causes the compiler to check that, in calls to `my_memcpy',
       arguments DEST and SRC are non-null.  If the compiler determines
       that a null pointer is passed in an argument slot marked as
!      non-null, and the `-Wnonnull' option is enabled, a warning is
       issued.  The compiler may also choose to make optimizations based
       on the knowledge that certain function arguments will never be
       null.
  
!      If no argument index list is given to the `nonnull' attribute, all
       pointer arguments are marked as non-null.  To illustrate, the
       following declaration is equivalent to the previous example:
  
--- 26375,26397 ----
       (*note Extended Asm::) in the called function, to serve as a
       special side-effect.
  
! 'nonnull (ARG-INDEX, ...)'
!      The 'nonnull' attribute specifies that some function parameters
       should be non-null pointers.  For instance, the declaration:
  
            extern void *
            my_memcpy (void *dest, const void *src, size_t len)
                    __attribute__((nonnull (1, 2)));
  
!      causes the compiler to check that, in calls to 'my_memcpy',
       arguments DEST and SRC are non-null.  If the compiler determines
       that a null pointer is passed in an argument slot marked as
!      non-null, and the '-Wnonnull' option is enabled, a warning is
       issued.  The compiler may also choose to make optimizations based
       on the knowledge that certain function arguments will never be
       null.
  
!      If no argument index list is given to the 'nonnull' attribute, all
       pointer arguments are marked as non-null.  To illustrate, the
       following declaration is equivalent to the previous example:
  
*************** The following attributes are supported o
*** 26551,26558 ****
            my_memcpy (void *dest, const void *src, size_t len)
                    __attribute__((nonnull));
  
! `noplt'
!      The `noplt' attribute is the counterpart to option `-fno-plt'.
       Calls to functions marked with this attribute in
       position-independent code do not use the PLT.
  
--- 26399,26406 ----
            my_memcpy (void *dest, const void *src, size_t len)
                    __attribute__((nonnull));
  
! 'noplt'
!      The 'noplt' attribute is the counterpart to option '-fno-plt'.
       Calls to functions marked with this attribute in
       position-independent code do not use the PLT.
  
*************** The following attributes are supported o
*** 26567,26585 ****
              /* ... */
            }
  
!      The `noplt' attribute on function `foo' tells the compiler to
!      assume that the function `foo' is externally defined and that the
!      call to `foo' must avoid the PLT in position-independent code.
  
       In position-dependent code, a few targets also convert calls to
       functions that are marked to not use the PLT to use the GOT
       instead.
  
! `noreturn'
!      A few standard library functions, such as `abort' and `exit',
       cannot return.  GCC knows this automatically.  Some programs define
       their own functions that never return.  You can declare them
!      `noreturn' to tell the compiler this fact.  For example,
  
            void fatal () __attribute__ ((noreturn));
  
--- 26415,26433 ----
              /* ... */
            }
  
!      The 'noplt' attribute on function 'foo' tells the compiler to
!      assume that the function 'foo' is externally defined and that the
!      call to 'foo' must avoid the PLT in position-independent code.
  
       In position-dependent code, a few targets also convert calls to
       functions that are marked to not use the PLT to use the GOT
       instead.
  
! 'noreturn'
!      A few standard library functions, such as 'abort' and 'exit',
       cannot return.  GCC knows this automatically.  Some programs define
       their own functions that never return.  You can declare them
!      'noreturn' to tell the compiler this fact.  For example,
  
            void fatal () __attribute__ ((noreturn));
  
*************** The following attributes are supported o
*** 26590,26628 ****
              exit (1);
            }
  
!      The `noreturn' keyword tells the compiler to assume that `fatal'
       cannot return.  It can then optimize without regard to what would
!      happen if `fatal' ever did return.  This makes slightly better
       code.  More importantly, it helps avoid spurious warnings of
       uninitialized variables.
  
!      The `noreturn' keyword does not affect the exceptional path when
!      that applies: a `noreturn'-marked function may still return to the
!      caller by throwing an exception or calling `longjmp'.
  
       Do not assume that registers saved by the calling function are
!      restored before calling the `noreturn' function.
  
!      It does not make sense for a `noreturn' function to have a return
!      type other than `void'.
  
! `nothrow'
!      The `nothrow' attribute is used to inform the compiler that a
       function cannot throw an exception.  For example, most functions in
       the standard C library can be guaranteed not to throw an exception
!      with the notable exceptions of `qsort' and `bsearch' that take
       function pointer arguments.
  
! `optimize'
!      The `optimize' attribute is used to specify that a function is to
       be compiled with different optimization options than specified on
       the command line.  Arguments can either be numbers or strings.
       Numbers are assumed to be an optimization level.  Strings that
!      begin with `O' are assumed to be an optimization option, while
!      other options are assumed to be used with a `-f' prefix.  You can
!      also use the `#pragma GCC optimize' pragma to set the optimization
       options that affect more than one function.  *Note Function
!      Specific Option Pragmas::, for details about the `#pragma GCC
       optimize' pragma.
  
       This can be used for instance to have frequently-executed functions
--- 26438,26476 ----
              exit (1);
            }
  
!      The 'noreturn' keyword tells the compiler to assume that 'fatal'
       cannot return.  It can then optimize without regard to what would
!      happen if 'fatal' ever did return.  This makes slightly better
       code.  More importantly, it helps avoid spurious warnings of
       uninitialized variables.
  
!      The 'noreturn' keyword does not affect the exceptional path when
!      that applies: a 'noreturn'-marked function may still return to the
!      caller by throwing an exception or calling 'longjmp'.
  
       Do not assume that registers saved by the calling function are
!      restored before calling the 'noreturn' function.
  
!      It does not make sense for a 'noreturn' function to have a return
!      type other than 'void'.
  
! 'nothrow'
!      The 'nothrow' attribute is used to inform the compiler that a
       function cannot throw an exception.  For example, most functions in
       the standard C library can be guaranteed not to throw an exception
!      with the notable exceptions of 'qsort' and 'bsearch' that take
       function pointer arguments.
  
! 'optimize'
!      The 'optimize' attribute is used to specify that a function is to
       be compiled with different optimization options than specified on
       the command line.  Arguments can either be numbers or strings.
       Numbers are assumed to be an optimization level.  Strings that
!      begin with 'O' are assumed to be an optimization option, while
!      other options are assumed to be used with a '-f' prefix.  You can
!      also use the '#pragma GCC optimize' pragma to set the optimization
       options that affect more than one function.  *Note Function
!      Specific Option Pragmas::, for details about the '#pragma GCC
       optimize' pragma.
  
       This can be used for instance to have frequently-executed functions
*************** The following attributes are supported o
*** 26630,26656 ****
       faster and larger code, while other functions can be compiled with
       less aggressive options.
  
! `pure'
       Many functions have no effects except the return value and their
       return value depends only on the parameters and/or global
       variables.  Such a function can be subject to common subexpression
       elimination and loop optimization just as an arithmetic operator
       would be.  These functions should be declared with the attribute
!      `pure'.  For example,
  
            int square (int) __attribute__ ((pure));
  
!      says that the hypothetical function `square' is safe to call fewer
       times than the program says.
  
!      Some common examples of pure functions are `strlen' or `memcmp'.
!      Interesting non-pure functions are functions with infinite loops
!      or those depending on volatile memory or other system resource,
!      that may change between two consecutive calls (such as `feof' in a
       multithreading environment).
  
! `returns_nonnull'
!      The `returns_nonnull' attribute specifies that the function return
       value should be a non-null pointer.  For instance, the declaration:
  
            extern void *
--- 26478,26504 ----
       faster and larger code, while other functions can be compiled with
       less aggressive options.
  
! 'pure'
       Many functions have no effects except the return value and their
       return value depends only on the parameters and/or global
       variables.  Such a function can be subject to common subexpression
       elimination and loop optimization just as an arithmetic operator
       would be.  These functions should be declared with the attribute
!      'pure'.  For example,
  
            int square (int) __attribute__ ((pure));
  
!      says that the hypothetical function 'square' is safe to call fewer
       times than the program says.
  
!      Some common examples of pure functions are 'strlen' or 'memcmp'.
!      Interesting non-pure functions are functions with infinite loops or
!      those depending on volatile memory or other system resource, that
!      may change between two consecutive calls (such as 'feof' in a
       multithreading environment).
  
! 'returns_nonnull'
!      The 'returns_nonnull' attribute specifies that the function return
       value should be a non-null pointer.  For instance, the declaration:
  
            extern void *
*************** The following attributes are supported o
*** 26659,26716 ****
       lets the compiler optimize callers based on the knowledge that the
       return value will never be null.
  
! `returns_twice'
!      The `returns_twice' attribute tells the compiler that a function
       may return more than one time.  The compiler ensures that all
       registers are dead before calling such a function and emits a
       warning about the variables that may be clobbered after the second
!      return from the function.  Examples of such functions are `setjmp'
!      and `vfork'.  The `longjmp'-like counterpart of such function, if
!      any, might need to be marked with the `noreturn' attribute.
  
! `section ("SECTION-NAME")'
!      Normally, the compiler places the code it generates in the `text'
       section.  Sometimes, however, you need additional sections, or you
       need certain particular functions to appear in special sections.
!      The `section' attribute specifies that a function lives in a
       particular section.  For example, the declaration:
  
            extern void foobar (void) __attribute__ ((section ("bar")));
  
!      puts the function `foobar' in the `bar' section.
  
       Some file formats do not support arbitrary sections so the
!      `section' attribute is not available on all platforms.  If you
!      need to map the entire contents of a module to a particular
!      section, consider using the facilities of the linker instead.
  
! `sentinel'
!      This function attribute ensures that a parameter in a function
!      call is an explicit `NULL'.  The attribute is only valid on
!      variadic functions.  By default, the sentinel is located at
!      position zero, the last parameter of the function call.  If an
!      optional integer position argument P is supplied to the attribute,
!      the sentinel must be located at position P counting backwards from
!      the end of the argument list.
  
            __attribute__ ((sentinel))
            is equivalent to
            __attribute__ ((sentinel(0)))
  
       The attribute is automatically set with a position of 0 for the
!      built-in functions `execl' and `execlp'.  The built-in function
!      `execle' has the attribute set with a position of 1.
  
!      A valid `NULL' in this context is defined as zero with any pointer
!      type.  If your system defines the `NULL' macro with an integer type
!      then you need to add an explicit cast.  GCC replaces `stddef.h'
       with a copy that redefines NULL appropriately.
  
       The warnings for missing or incorrect sentinels are enabled with
!      `-Wformat'.
  
! `simd'
! `simd("MASK")'
       This attribute enables creation of one or more function versions
       that can process multiple arguments using SIMD instructions from a
       single invocation.  Specifying this attribute allows compiler to
--- 26507,26564 ----
       lets the compiler optimize callers based on the knowledge that the
       return value will never be null.
  
! 'returns_twice'
!      The 'returns_twice' attribute tells the compiler that a function
       may return more than one time.  The compiler ensures that all
       registers are dead before calling such a function and emits a
       warning about the variables that may be clobbered after the second
!      return from the function.  Examples of such functions are 'setjmp'
!      and 'vfork'.  The 'longjmp'-like counterpart of such function, if
!      any, might need to be marked with the 'noreturn' attribute.
  
! 'section ("SECTION-NAME")'
!      Normally, the compiler places the code it generates in the 'text'
       section.  Sometimes, however, you need additional sections, or you
       need certain particular functions to appear in special sections.
!      The 'section' attribute specifies that a function lives in a
       particular section.  For example, the declaration:
  
            extern void foobar (void) __attribute__ ((section ("bar")));
  
!      puts the function 'foobar' in the 'bar' section.
  
       Some file formats do not support arbitrary sections so the
!      'section' attribute is not available on all platforms.  If you need
!      to map the entire contents of a module to a particular section,
!      consider using the facilities of the linker instead.
  
! 'sentinel'
!      This function attribute ensures that a parameter in a function call
!      is an explicit 'NULL'.  The attribute is only valid on variadic
!      functions.  By default, the sentinel is located at position zero,
!      the last parameter of the function call.  If an optional integer
!      position argument P is supplied to the attribute, the sentinel must
!      be located at position P counting backwards from the end of the
!      argument list.
  
            __attribute__ ((sentinel))
            is equivalent to
            __attribute__ ((sentinel(0)))
  
       The attribute is automatically set with a position of 0 for the
!      built-in functions 'execl' and 'execlp'.  The built-in function
!      'execle' has the attribute set with a position of 1.
  
!      A valid 'NULL' in this context is defined as zero with any pointer
!      type.  If your system defines the 'NULL' macro with an integer type
!      then you need to add an explicit cast.  GCC replaces 'stddef.h'
       with a copy that redefines NULL appropriately.
  
       The warnings for missing or incorrect sentinels are enabled with
!      '-Wformat'.
  
! 'simd'
! 'simd("MASK")'
       This attribute enables creation of one or more function versions
       that can process multiple arguments using SIMD instructions from a
       single invocation.  Specifying this attribute allows compiler to
*************** The following attributes are supported o
*** 26720,26807 ****
       document.  For x86_64 target this document can be found
       here (https://sourceware.org/glibc/wiki/libmvec?action=AttachFile&do=view&target=VectorABI.txt).
  
!      The optional argument MASK may have the value `notinbranch' or
!      `inbranch', and instructs the compiler to generate non-masked or
!      masked clones correspondingly. By default, all clones are
       generated.
  
!      The attribute should not be used together with Cilk Plus `vector'
       attribute on the same function.
  
!      If the attribute is specified and `#pragma omp declare simd' is
!      present on a declaration and the `-fopenmp' or `-fopenmp-simd'
       switch is specified, then the attribute is ignored.
  
! `stack_protect'
       This attribute adds stack protection code to the function if flags
!      `-fstack-protector', `-fstack-protector-strong' or
!      `-fstack-protector-explicit' are set.
  
! `target (OPTIONS)'
!      Multiple target back ends implement the `target' attribute to
       specify that a function is to be compiled with different target
       options than specified on the command line.  This can be used for
       instance to have functions compiled with a different ISA
       (instruction set architecture) than the default.  You can also use
!      the `#pragma GCC target' pragma to set more than one function to
!      be compiled with specific target options.  *Note Function Specific
!      Option Pragmas::, for details about the `#pragma GCC target'
       pragma.
  
       For instance, on an x86, you could declare one function with the
!      `target("sse4.1,arch=core2")' attribute and another with
!      `target("sse4a,arch=amdfam10")'.  This is equivalent to compiling
!      the first function with `-msse4.1' and `-march=core2' options, and
!      the second function with `-msse4a' and `-march=amdfam10' options.
       It is up to you to make sure that a function is only invoked on a
       machine that supports the particular ISA it is compiled for (for
!      example by using `cpuid' on x86 to determine what feature bits and
       architecture family are used).
  
            int core2_func (void) __attribute__ ((__target__ ("arch=core2")));
            int sse3_func (void) __attribute__ ((__target__ ("sse3")));
  
       You can either use multiple strings separated by commas to specify
!      multiple options, or separate the options with a comma (`,')
!      within a single string.
  
       The options supported are specific to each target; refer to *note
       x86 Function Attributes::, *note PowerPC Function Attributes::,
       *note ARM Function Attributes::,and *note Nios II Function
       Attributes::, for details.
  
! `target_clones (OPTIONS)'
!      The `target_clones' attribute is used to specify that a function
!      be cloned into multiple versions compiled with different target
       options than specified on the command line.  The supported options
!      and restrictions are the same as for `target' attribute.
  
       For instance, on an x86, you could compile a function with
!      `target_clones("sse4.1,avx")'.  GCC creates two function clones,
!      one compiled with `-msse4.1' and another with `-mavx'.  It also
!      creates a resolver function (see the `ifunc' attribute above) that
       dynamically selects a clone suitable for current architecture.
  
! `unused'
       This attribute, attached to a function, means that the function is
       meant to be possibly unused.  GCC does not produce a warning for
       this function.
  
! `used'
       This attribute, attached to a function, means that code must be
       emitted for the function even if it appears that the function is
       not referenced.  This is useful, for example, when the function is
       referenced only in inline assembly.
  
       When applied to a member function of a C++ class template, the
!      attribute also means that the function is instantiated if the
!      class itself is instantiated.
  
! `visibility ("VISIBILITY_TYPE")'
       This attribute affects the linkage of the declaration to which it
!      is attached.  It can be applied to variables (*note Common
!      Variable Attributes::) and types (*note Common Type Attributes::)
!      as well as functions.
  
       There are four supported VISIBILITY_TYPE values: default, hidden,
       protected or internal visibility.
--- 26568,26655 ----
       document.  For x86_64 target this document can be found
       here (https://sourceware.org/glibc/wiki/libmvec?action=AttachFile&do=view&target=VectorABI.txt).
  
!      The optional argument MASK may have the value 'notinbranch' or
!      'inbranch', and instructs the compiler to generate non-masked or
!      masked clones correspondingly.  By default, all clones are
       generated.
  
!      The attribute should not be used together with Cilk Plus 'vector'
       attribute on the same function.
  
!      If the attribute is specified and '#pragma omp declare simd' is
!      present on a declaration and the '-fopenmp' or '-fopenmp-simd'
       switch is specified, then the attribute is ignored.
  
! 'stack_protect'
       This attribute adds stack protection code to the function if flags
!      '-fstack-protector', '-fstack-protector-strong' or
!      '-fstack-protector-explicit' are set.
  
! 'target (OPTIONS)'
!      Multiple target back ends implement the 'target' attribute to
       specify that a function is to be compiled with different target
       options than specified on the command line.  This can be used for
       instance to have functions compiled with a different ISA
       (instruction set architecture) than the default.  You can also use
!      the '#pragma GCC target' pragma to set more than one function to be
!      compiled with specific target options.  *Note Function Specific
!      Option Pragmas::, for details about the '#pragma GCC target'
       pragma.
  
       For instance, on an x86, you could declare one function with the
!      'target("sse4.1,arch=core2")' attribute and another with
!      'target("sse4a,arch=amdfam10")'.  This is equivalent to compiling
!      the first function with '-msse4.1' and '-march=core2' options, and
!      the second function with '-msse4a' and '-march=amdfam10' options.
       It is up to you to make sure that a function is only invoked on a
       machine that supports the particular ISA it is compiled for (for
!      example by using 'cpuid' on x86 to determine what feature bits and
       architecture family are used).
  
            int core2_func (void) __attribute__ ((__target__ ("arch=core2")));
            int sse3_func (void) __attribute__ ((__target__ ("sse3")));
  
       You can either use multiple strings separated by commas to specify
!      multiple options, or separate the options with a comma (',') within
!      a single string.
  
       The options supported are specific to each target; refer to *note
       x86 Function Attributes::, *note PowerPC Function Attributes::,
       *note ARM Function Attributes::,and *note Nios II Function
       Attributes::, for details.
  
! 'target_clones (OPTIONS)'
!      The 'target_clones' attribute is used to specify that a function be
!      cloned into multiple versions compiled with different target
       options than specified on the command line.  The supported options
!      and restrictions are the same as for 'target' attribute.
  
       For instance, on an x86, you could compile a function with
!      'target_clones("sse4.1,avx")'.  GCC creates two function clones,
!      one compiled with '-msse4.1' and another with '-mavx'.  It also
!      creates a resolver function (see the 'ifunc' attribute above) that
       dynamically selects a clone suitable for current architecture.
  
! 'unused'
       This attribute, attached to a function, means that the function is
       meant to be possibly unused.  GCC does not produce a warning for
       this function.
  
! 'used'
       This attribute, attached to a function, means that code must be
       emitted for the function even if it appears that the function is
       not referenced.  This is useful, for example, when the function is
       referenced only in inline assembly.
  
       When applied to a member function of a C++ class template, the
!      attribute also means that the function is instantiated if the class
!      itself is instantiated.
  
! 'visibility ("VISIBILITY_TYPE")'
       This attribute affects the linkage of the declaration to which it
!      is attached.  It can be applied to variables (*note Common Variable
!      Attributes::) and types (*note Common Type Attributes::) as well as
!      functions.
  
       There are four supported VISIBILITY_TYPE values: default, hidden,
       protected or internal visibility.
*************** The following attributes are supported o
*** 26810,26819 ****
            f () { /* Do something. */; }
            int i __attribute__ ((visibility ("hidden")));
  
!      The possible values of VISIBILITY_TYPE correspond to the
!      visibility settings in the ELF gABI.
  
!     `default'
            Default visibility is the normal case for the object file
            format.  This value is available for the visibility attribute
            to override other options that may change the assumed
--- 26658,26667 ----
            f () { /* Do something. */; }
            int i __attribute__ ((visibility ("hidden")));
  
!      The possible values of VISIBILITY_TYPE correspond to the visibility
!      settings in the ELF gABI.
  
!      'default'
            Default visibility is the normal case for the object file
            format.  This value is available for the visibility attribute
            to override other options that may change the assumed
*************** The following attributes are supported o
*** 26829,26861 ****
            Default visibility corresponds to "external linkage" in the
            language.
  
!     `hidden'
            Hidden visibility indicates that the entity declared has a new
            form of linkage, which we call "hidden linkage".  Two
            declarations of an object with hidden linkage refer to the
            same object if they are in the same shared object.
  
!     `internal'
            Internal visibility is like hidden visibility, but with
            additional processor specific semantics.  Unless otherwise
            specified by the psABI, GCC defines internal visibility to
            mean that a function is _never_ called from another module.
!           Compare this with hidden functions which, while they cannot
!           be referenced directly by other modules, can be referenced
            indirectly via function pointers.  By indicating that a
!           function cannot be called from outside the module, GCC may
!           for instance omit the load of a PIC register since it is known
            that the calling function loaded the correct value.
  
!     `protected'
            Protected visibility is like default visibility except that it
            indicates that references within the defining module bind to
            the definition in that module.  That is, the declared entity
            cannot be overridden by another module.
  
- 
       All visibilities are supported on many, but not all, ELF targets
!      (supported when the assembler supports the `.visibility'
       pseudo-op).  Default visibility is supported everywhere.  Hidden
       visibility is supported on Darwin targets.
  
--- 26677,26708 ----
            Default visibility corresponds to "external linkage" in the
            language.
  
!      'hidden'
            Hidden visibility indicates that the entity declared has a new
            form of linkage, which we call "hidden linkage".  Two
            declarations of an object with hidden linkage refer to the
            same object if they are in the same shared object.
  
!      'internal'
            Internal visibility is like hidden visibility, but with
            additional processor specific semantics.  Unless otherwise
            specified by the psABI, GCC defines internal visibility to
            mean that a function is _never_ called from another module.
!           Compare this with hidden functions which, while they cannot be
!           referenced directly by other modules, can be referenced
            indirectly via function pointers.  By indicating that a
!           function cannot be called from outside the module, GCC may for
!           instance omit the load of a PIC register since it is known
            that the calling function loaded the correct value.
  
!      'protected'
            Protected visibility is like default visibility except that it
            indicates that references within the defining module bind to
            the definition in that module.  That is, the declared entity
            cannot be overridden by another module.
  
       All visibilities are supported on many, but not all, ELF targets
!      (supported when the assembler supports the '.visibility'
       pseudo-op).  Default visibility is supported everywhere.  Hidden
       visibility is supported on Darwin targets.
  
*************** The following attributes are supported o
*** 26887,26893 ****
  
       This attribute applies only to the particular namespace body, not
       to other definitions of the same namespace; it is equivalent to
!      using `#pragma GCC visibility' before and after the namespace
       definition (*note Visibility Pragmas::).
  
       In C++, if a template argument has limited visibility, this
--- 26734,26740 ----
  
       This attribute applies only to the particular namespace body, not
       to other definitions of the same namespace; it is equivalent to
!      using '#pragma GCC visibility' before and after the namespace
       definition (*note Visibility Pragmas::).
  
       In C++, if a template argument has limited visibility, this
*************** The following attributes are supported o
*** 26898,26909 ****
       If both the template and enclosing class have explicit visibility,
       the visibility from the template is used.
  
! `warn_unused_result'
!      The `warn_unused_result' attribute causes a warning to be emitted
       if a caller of the function with this attribute does not use its
       return value.  This is useful for functions where not checking the
       result is either a security problem or always a bug, such as
!      `realloc'.
  
            int fn () __attribute__ ((warn_unused_result));
            int foo ()
--- 26745,26756 ----
       If both the template and enclosing class have explicit visibility,
       the visibility from the template is used.
  
! 'warn_unused_result'
!      The 'warn_unused_result' attribute causes a warning to be emitted
       if a caller of the function with this attribute does not use its
       return value.  This is useful for functions where not checking the
       result is either a security problem or always a bug, such as
!      'realloc'.
  
            int fn () __attribute__ ((warn_unused_result));
            int foo ()
*************** The following attributes are supported o
*** 26915,26937 ****
  
       results in warning on line 5.
  
! `weak'
!      The `weak' attribute causes the declaration to be emitted as a weak
       symbol rather than a global.  This is primarily useful in defining
       library functions that can be overridden in user code, though it
       can also be used with non-function declarations.  Weak symbols are
       supported for ELF targets, and also for a.out targets when using
       the GNU assembler and linker.
  
! `weakref'
! `weakref ("TARGET")'
!      The `weakref' attribute marks a declaration as a weak reference.
!      Without arguments, it should be accompanied by an `alias' attribute
       naming the target symbol.  Optionally, the TARGET may be given as
!      an argument to `weakref' itself.  In either case, `weakref'
!      implicitly marks the declaration as `weak'.  Without a TARGET,
!      given as an argument to `weakref' or to `alias', `weakref' is
!      equivalent to `weak'.
  
            static int x() __attribute__ ((weakref ("y")));
            /* is equivalent to... */
--- 26762,26784 ----
  
       results in warning on line 5.
  
! 'weak'
!      The 'weak' attribute causes the declaration to be emitted as a weak
       symbol rather than a global.  This is primarily useful in defining
       library functions that can be overridden in user code, though it
       can also be used with non-function declarations.  Weak symbols are
       supported for ELF targets, and also for a.out targets when using
       the GNU assembler and linker.
  
! 'weakref'
! 'weakref ("TARGET")'
!      The 'weakref' attribute marks a declaration as a weak reference.
!      Without arguments, it should be accompanied by an 'alias' attribute
       naming the target symbol.  Optionally, the TARGET may be given as
!      an argument to 'weakref' itself.  In either case, 'weakref'
!      implicitly marks the declaration as 'weak'.  Without a TARGET,
!      given as an argument to 'weakref' or to 'alias', 'weakref' is
!      equivalent to 'weak'.
  
            static int x() __attribute__ ((weakref ("y")));
            /* is equivalent to... */
*************** The following attributes are supported o
*** 26941,26949 ****
            static int x() __attribute__ ((alias ("y")));
  
       A weak reference is an alias that does not by itself require a
!      definition to be given for the target symbol.  If the target
!      symbol is only referenced through weak references, then it becomes
!      a `weak' undefined symbol.  If it is directly referenced, however,
       then such strong references prevail, and a definition is required
       for the symbol, not necessarily in the same translation unit.
  
--- 26788,26796 ----
            static int x() __attribute__ ((alias ("y")));
  
       A weak reference is an alias that does not by itself require a
!      definition to be given for the target symbol.  If the target symbol
!      is only referenced through weak references, then it becomes a
!      'weak' undefined symbol.  If it is directly referenced, however,
       then such strong references prevail, and a definition is required
       for the symbol, not necessarily in the same translation unit.
  
*************** The following attributes are supported o
*** 26952,26960 ****
       symbol, declaring it as weak, compiling the two separate
       translation units and performing a reloadable link on them.
  
!      At present, a declaration to which `weakref' is attached can only
!      be `static'.
! 
  
  
  File: gcc.info,  Node: AArch64 Function Attributes,  Next: ARC Function Attributes,  Prev: Common Function Attributes,  Up: Function Attributes
--- 26799,26806 ----
       symbol, declaring it as weak, compiling the two separate
       translation units and performing a reloadable link on them.
  
!      At present, a declaration to which 'weakref' is attached can only
!      be 'static'.
  
  
  File: gcc.info,  Node: AArch64 Function Attributes,  Next: ARC Function Attributes,  Prev: Common Function Attributes,  Up: Function Attributes
*************** AArch64 target.  For the most part, thes
*** 26967,27026 ****
  similar command-line options (*note AArch64 Options::), but on a
  per-function basis.
  
! `general-regs-only'
       Indicates that no floating-point or Advanced SIMD registers should
       be used when generating code for this function.  If the function
       explicitly uses floating-point code, then the compiler gives an
       error.  This is the same behavior as that of the command-line
!      option `-mgeneral-regs-only'.
  
! `fix-cortex-a53-835769'
       Indicates that the workaround for the Cortex-A53 erratum 835769
       should be applied to this function.  To explicitly disable the
       workaround for this function specify the negated form:
!      `no-fix-cortex-a53-835769'.  This corresponds to the behavior of
!      the command line options `-mfix-cortex-a53-835769' and
!      `-mno-fix-cortex-a53-835769'.
  
! `cmodel='
!      Indicates that code should be generated for a particular code
!      model for this function.  The behavior and permissible arguments
!      are the same as for the command line option `-mcmodel='.
  
! `strict-align'
!      Indicates that the compiler should not assume that unaligned
!      memory references are handled by the system.  The behavior is the
!      same as for the command-line option `-mstrict-align'.
  
! `omit-leaf-frame-pointer'
       Indicates that the frame pointer should be omitted for a leaf
       function call.  To keep the frame pointer, the inverse attribute
!      `no-omit-leaf-frame-pointer' can be specified.  These attributes
       have the same behavior as the command-line options
!      `-momit-leaf-frame-pointer' and `-mno-omit-leaf-frame-pointer'.
  
! `tls-dialect='
       Specifies the TLS dialect to use for this function.  The behavior
       and permissible arguments are the same as for the command-line
!      option `-mtls-dialect='.
  
! `arch='
       Specifies the architecture version and architectural extensions to
       use for this function.  The behavior and permissible arguments are
!      the same as for the `-march=' command-line option.
  
! `tune='
       Specifies the core for which to tune the performance of this
       function.  The behavior and permissible arguments are the same as
!      for the `-mtune=' command-line option.
  
! `cpu='
       Specifies the core for which to tune the performance of this
       function and also whose architectural features to use.  The
!      behavior and valid arguments are the same as for the `-mcpu='
       command-line option.
  
- 
   The above target attributes can be specified as follows:
  
       __attribute__((target("ATTR-STRING")))
--- 26813,26871 ----
  similar command-line options (*note AArch64 Options::), but on a
  per-function basis.
  
! 'general-regs-only'
       Indicates that no floating-point or Advanced SIMD registers should
       be used when generating code for this function.  If the function
       explicitly uses floating-point code, then the compiler gives an
       error.  This is the same behavior as that of the command-line
!      option '-mgeneral-regs-only'.
  
! 'fix-cortex-a53-835769'
       Indicates that the workaround for the Cortex-A53 erratum 835769
       should be applied to this function.  To explicitly disable the
       workaround for this function specify the negated form:
!      'no-fix-cortex-a53-835769'.  This corresponds to the behavior of
!      the command line options '-mfix-cortex-a53-835769' and
!      '-mno-fix-cortex-a53-835769'.
  
! 'cmodel='
!      Indicates that code should be generated for a particular code model
!      for this function.  The behavior and permissible arguments are the
!      same as for the command line option '-mcmodel='.
  
! 'strict-align'
!      Indicates that the compiler should not assume that unaligned memory
!      references are handled by the system.  The behavior is the same as
!      for the command-line option '-mstrict-align'.
  
! 'omit-leaf-frame-pointer'
       Indicates that the frame pointer should be omitted for a leaf
       function call.  To keep the frame pointer, the inverse attribute
!      'no-omit-leaf-frame-pointer' can be specified.  These attributes
       have the same behavior as the command-line options
!      '-momit-leaf-frame-pointer' and '-mno-omit-leaf-frame-pointer'.
  
! 'tls-dialect='
       Specifies the TLS dialect to use for this function.  The behavior
       and permissible arguments are the same as for the command-line
!      option '-mtls-dialect='.
  
! 'arch='
       Specifies the architecture version and architectural extensions to
       use for this function.  The behavior and permissible arguments are
!      the same as for the '-march=' command-line option.
  
! 'tune='
       Specifies the core for which to tune the performance of this
       function.  The behavior and permissible arguments are the same as
!      for the '-mtune=' command-line option.
  
! 'cpu='
       Specifies the core for which to tune the performance of this
       function and also whose architectural features to use.  The
!      behavior and valid arguments are the same as for the '-mcpu='
       command-line option.
  
   The above target attributes can be specified as follows:
  
       __attribute__((target("ATTR-STRING")))
*************** per-function basis.
*** 27030,27036 ****
         return a + 5;
       }
  
!  where `ATTR-STRING' is one of the attribute strings specified above.
  
   Additionally, the architectural extension string may be specified on
  its own.  This can be used to turn on and off particular architectural
--- 26875,26881 ----
         return a + 5;
       }
  
!  where 'ATTR-STRING' is one of the attribute strings specified above.
  
   Additionally, the architectural extension string may be specified on
  its own.  This can be used to turn on and off particular architectural
*************** or core.  Example:
*** 27044,27055 ****
         return a + 5;
       }
  
!  In this example `target("+crc+nocrypto")' enables the `crc' extension
! and disables the `crypto' extension for the function `foo' without
! modifying an existing `-march=' or `-mcpu' option.
  
!  Multiple target function attributes can be specified by separating
! them with a comma.  For example:
       __attribute__((target("arch=armv8-a+crc+crypto,tune=cortex-a53")))
       int
       foo (int a)
--- 26889,26900 ----
         return a + 5;
       }
  
!  In this example 'target("+crc+nocrypto")' enables the 'crc' extension
! and disables the 'crypto' extension for the function 'foo' without
! modifying an existing '-march=' or '-mcpu' option.
  
!  Multiple target function attributes can be specified by separating them
! with a comma.  For example:
       __attribute__((target("arch=armv8-a+crc+crypto,tune=cortex-a53")))
       int
       foo (int a)
*************** them with a comma.  For example:
*** 27057,27064 ****
         return a + 5;
       }
  
!  is valid and compiles function `foo' for ARMv8-A with `crc' and
! `crypto' extensions and tunes it for `cortex-a53'.
  
  6.31.2.1 Inlining rules
  .......................
--- 26902,26909 ----
         return a + 5;
       }
  
!  is valid and compiles function 'foo' for ARMv8-A with 'crc' and
! 'crypto' extensions and tunes it for 'cortex-a53'.
  
  6.31.2.1 Inlining rules
  .......................
*************** target options can affect function inlin
*** 27069,27090 ****
  
   In particular, a caller function can inline a callee function only if
  the architectural features available to the callee are a subset of the
! features available to the caller.  For example: A function `foo'
! compiled with `-march=armv8-a+crc', or tagged with the equivalent
! `arch=armv8-a+crc' attribute, can inline a function `bar' compiled with
! `-march=armv8-a+nocrc' because the all the architectural features that
! function `bar' requires are available to function `foo'.  Conversely,
! function `bar' cannot inline function `foo'.
  
!  Additionally inlining a function compiled with `-mstrict-align' into a
! function compiled without `-mstrict-align' is not allowed.  However,
! inlining a function compiled without `-mstrict-align' into a function
! compiled with `-mstrict-align' is allowed.
  
!  Note that CPU tuning options and attributes such as the `-mcpu=',
! `-mtune=' do not inhibit inlining unless the CPU specified by the
! `-mcpu=' option or the `cpu=' attribute conflicts with the
! architectural feature rules specified above.
  
  
  File: gcc.info,  Node: ARC Function Attributes,  Next: ARM Function Attributes,  Prev: AArch64 Function Attributes,  Up: Function Attributes
--- 26914,26935 ----
  
   In particular, a caller function can inline a callee function only if
  the architectural features available to the callee are a subset of the
! features available to the caller.  For example: A function 'foo'
! compiled with '-march=armv8-a+crc', or tagged with the equivalent
! 'arch=armv8-a+crc' attribute, can inline a function 'bar' compiled with
! '-march=armv8-a+nocrc' because the all the architectural features that
! function 'bar' requires are available to function 'foo'.  Conversely,
! function 'bar' cannot inline function 'foo'.
  
!  Additionally inlining a function compiled with '-mstrict-align' into a
! function compiled without '-mstrict-align' is not allowed.  However,
! inlining a function compiled without '-mstrict-align' into a function
! compiled with '-mstrict-align' is allowed.
  
!  Note that CPU tuning options and attributes such as the '-mcpu=',
! '-mtune=' do not inhibit inlining unless the CPU specified by the
! '-mcpu=' option or the 'cpu=' attribute conflicts with the architectural
! feature rules specified above.
  
  
  File: gcc.info,  Node: ARC Function Attributes,  Next: ARM Function Attributes,  Prev: AArch64 Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: ARC Function Attr
*** 27094,27127 ****
  
  These function attributes are supported by the ARC back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
!      On the ARC, you must specify the kind of interrupt to be handled
!      in a parameter to the interrupt attribute like this:
  
            void f () __attribute__ ((interrupt ("ilink1")));
  
!      Permissible values for this parameter are: `ilink1' and `ilink2'.
  
! `long_call'
! `medium_call'
! `short_call'
       These attributes specify how a particular function is called.
!      These attributes override the `-mlong-calls' and `-mmedium-calls'
!      (*note ARC Options::) command-line switches and `#pragma
       long_calls' settings.
  
!      For ARC, a function marked with the `long_call' attribute is
!      always called using register-indirect jump-and-link instructions,
!      thereby enabling the called function to be placed anywhere within
!      the 32-bit address space.  A function marked with the `medium_call'
       attribute will always be close enough to be called with an
       unconditional branch-and-link instruction, which has a 25-bit
!      offset from the call site.  A function marked with the `short_call'
       attribute will always be close enough to be called with a
       conditional branch-and-link instruction, which has a 21-bit offset
       from the call site.
--- 26939,26972 ----
  
  These function attributes are supported by the ARC back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
!      On the ARC, you must specify the kind of interrupt to be handled in
!      a parameter to the interrupt attribute like this:
  
            void f () __attribute__ ((interrupt ("ilink1")));
  
!      Permissible values for this parameter are: 'ilink1' and 'ilink2'.
  
! 'long_call'
! 'medium_call'
! 'short_call'
       These attributes specify how a particular function is called.
!      These attributes override the '-mlong-calls' and '-mmedium-calls'
!      (*note ARC Options::) command-line switches and '#pragma
       long_calls' settings.
  
!      For ARC, a function marked with the 'long_call' attribute is always
!      called using register-indirect jump-and-link instructions, thereby
!      enabling the called function to be placed anywhere within the
!      32-bit address space.  A function marked with the 'medium_call'
       attribute will always be close enough to be called with an
       unconditional branch-and-link instruction, which has a 25-bit
!      offset from the call site.  A function marked with the 'short_call'
       attribute will always be close enough to be called with a
       conditional branch-and-link instruction, which has a 21-bit offset
       from the call site.
*************** File: gcc.info,  Node: ARM Function Attr
*** 27134,27140 ****
  
  These function attributes are supported for ARM targets:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 26979,26985 ----
  
  These function attributes are supported for ARM targets:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** These function attributes are supported
*** 27145,27221 ****
  
            void f () __attribute__ ((interrupt ("IRQ")));
  
!      Permissible values for this parameter are: `IRQ', `FIQ', `SWI',
!      `ABORT' and `UNDEF'.
  
       On ARMv7-M the interrupt type is ignored, and the attribute means
       the function may be called with a word-aligned stack pointer.
  
! `isr'
       Use this attribute on ARM to write Interrupt Service Routines.
!      This is an alias to the `interrupt' attribute above.
  
! `long_call'
! `short_call'
       These attributes specify how a particular function is called.
!      These attributes override the `-mlong-calls' (*note ARM Options::)
!      command-line switch and `#pragma long_calls' settings.  For ARM,
!      the `long_call' attribute indicates that the function might be far
       away from the call site and require a different (more expensive)
!      calling sequence.   The `short_call' attribute always places the
!      offset to the function from the call site into the `BL'
!      instruction directly.
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! `pcs'
!      The `pcs' attribute can be used to control the calling convention
!      used for a function on ARM.  The attribute takes an argument that
       specifies the calling convention to use.
  
       When compiling using the AAPCS ABI (or a variant of it) then valid
!      values for the argument are `"aapcs"' and `"aapcs-vfp"'.  In order
!      to use a variant other than `"aapcs"' then the compiler must be
       permitted to use the appropriate co-processor registers (i.e., the
!      VFP registers must be available in order to use `"aapcs-vfp"').
       For example,
  
            /* Argument passed in r0, and result returned in r0+r1.  */
            double f2d (float) __attribute__((pcs("aapcs")));
  
!      Variadic functions always use the `"aapcs"' calling convention and
       the compiler rejects attempts to specify an alternative.
  
! `target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On ARM, the following options are allowed:
  
!     `thumb'
!           Force code generation in the Thumb (T16/T32) ISA, depending
!           on the architecture level.
  
!     `arm'
            Force code generation in the ARM (A32) ISA.
  
            Functions from different modes can be inlined in the caller's
            mode.
  
!     `fpu='
            Specifies the fpu for which to tune the performance of this
!           function.  The behavior and permissible arguments are the
!           same as for the `-mfpu=' command-line option.
! 
! 
  
  
  File: gcc.info,  Node: AVR Function Attributes,  Next: Blackfin Function Attributes,  Prev: ARM Function Attributes,  Up: Function Attributes
--- 26990,27065 ----
  
            void f () __attribute__ ((interrupt ("IRQ")));
  
!      Permissible values for this parameter are: 'IRQ', 'FIQ', 'SWI',
!      'ABORT' and 'UNDEF'.
  
       On ARMv7-M the interrupt type is ignored, and the attribute means
       the function may be called with a word-aligned stack pointer.
  
! 'isr'
       Use this attribute on ARM to write Interrupt Service Routines.
!      This is an alias to the 'interrupt' attribute above.
  
! 'long_call'
! 'short_call'
       These attributes specify how a particular function is called.
!      These attributes override the '-mlong-calls' (*note ARM Options::)
!      command-line switch and '#pragma long_calls' settings.  For ARM,
!      the 'long_call' attribute indicates that the function might be far
       away from the call site and require a different (more expensive)
!      calling sequence.  The 'short_call' attribute always places the
!      offset to the function from the call site into the 'BL' instruction
!      directly.
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! 'pcs'
! 
!      The 'pcs' attribute can be used to control the calling convention
!      used for a function on ARM. The attribute takes an argument that
       specifies the calling convention to use.
  
       When compiling using the AAPCS ABI (or a variant of it) then valid
!      values for the argument are '"aapcs"' and '"aapcs-vfp"'.  In order
!      to use a variant other than '"aapcs"' then the compiler must be
       permitted to use the appropriate co-processor registers (i.e., the
!      VFP registers must be available in order to use '"aapcs-vfp"').
       For example,
  
            /* Argument passed in r0, and result returned in r0+r1.  */
            double f2d (float) __attribute__((pcs("aapcs")));
  
!      Variadic functions always use the '"aapcs"' calling convention and
       the compiler rejects attempts to specify an alternative.
  
! 'target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On ARM, the following options are allowed:
  
!      'thumb'
!           Force code generation in the Thumb (T16/T32) ISA, depending on
!           the architecture level.
  
!      'arm'
            Force code generation in the ARM (A32) ISA.
  
            Functions from different modes can be inlined in the caller's
            mode.
  
!      'fpu='
            Specifies the fpu for which to tune the performance of this
!           function.  The behavior and permissible arguments are the same
!           as for the '-mfpu=' command-line option.
  
  
  File: gcc.info,  Node: AVR Function Attributes,  Next: Blackfin Function Attributes,  Prev: ARM Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: AVR Function Attr
*** 27225,27231 ****
  
  These function attributes are supported by the AVR back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 27069,27075 ----
  
  These function attributes are supported by the AVR back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** These function attributes are supported
*** 27233,27297 ****
  
       On the AVR, the hardware globally disables interrupts when an
       interrupt is executed.  The first instruction of an interrupt
!      handler declared with this attribute is a `SEI' instruction to
!      re-enable interrupts.  See also the `signal' function attribute
!      that does not insert a `SEI' instruction.  If both `signal' and
!      `interrupt' are specified for the same function, `signal' is
       silently ignored.
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! `OS_main'
! `OS_task'
!      On AVR, functions with the `OS_main' or `OS_task' attribute do not
       save/restore any call-saved register in their prologue/epilogue.
  
!      The `OS_main' attribute can be used when there _is guarantee_ that
       interrupts are disabled at the time when the function is entered.
       This saves resources when the stack pointer has to be changed to
       set up a frame for local variables.
  
!      The `OS_task' attribute can be used when there is _no guarantee_
       that interrupts are disabled at that time when the function is
!      entered like for, e.g. task functions in a multi-threading
!      operating system. In that case, changing the stack pointer
       register is guarded by save/clear/restore of the global interrupt
       enable flag.
  
!      The differences to the `naked' function attribute are:
!         * `naked' functions do not have a return instruction whereas
!           `OS_main' and `OS_task' functions have a `RET' or `RETI'
            return instruction.
! 
!         * `naked' functions do not set up a frame for local variables
!           or a frame pointer whereas `OS_main' and `OS_task' do this as
            needed.
  
! `signal'
       Use this attribute on the AVR to indicate that the specified
       function is an interrupt handler.  The compiler generates function
       entry and exit sequences suitable for use in an interrupt handler
       when this attribute is present.
  
!      See also the `interrupt' function attribute.
  
       The AVR hardware globally disables interrupts when an interrupt is
!      executed.  Interrupt handler functions defined with the `signal'
       attribute do not re-enable interrupts.  It is save to enable
!      interrupts in a `signal' handler.  This "save" only applies to the
       code generated by the compiler and not to the IRQ layout of the
       application which is responsibility of the application.
  
!      If both `signal' and `interrupt' are specified for the same
!      function, `signal' is silently ignored.
  
  
  File: gcc.info,  Node: Blackfin Function Attributes,  Next: CR16 Function Attributes,  Prev: AVR Function Attributes,  Up: Function Attributes
--- 27077,27140 ----
  
       On the AVR, the hardware globally disables interrupts when an
       interrupt is executed.  The first instruction of an interrupt
!      handler declared with this attribute is a 'SEI' instruction to
!      re-enable interrupts.  See also the 'signal' function attribute
!      that does not insert a 'SEI' instruction.  If both 'signal' and
!      'interrupt' are specified for the same function, 'signal' is
       silently ignored.
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! 'OS_main'
! 'OS_task'
!      On AVR, functions with the 'OS_main' or 'OS_task' attribute do not
       save/restore any call-saved register in their prologue/epilogue.
  
!      The 'OS_main' attribute can be used when there _is guarantee_ that
       interrupts are disabled at the time when the function is entered.
       This saves resources when the stack pointer has to be changed to
       set up a frame for local variables.
  
!      The 'OS_task' attribute can be used when there is _no guarantee_
       that interrupts are disabled at that time when the function is
!      entered like for, e.g.  task functions in a multi-threading
!      operating system.  In that case, changing the stack pointer
       register is guarded by save/clear/restore of the global interrupt
       enable flag.
  
!      The differences to the 'naked' function attribute are:
!         * 'naked' functions do not have a return instruction whereas
!           'OS_main' and 'OS_task' functions have a 'RET' or 'RETI'
            return instruction.
!         * 'naked' functions do not set up a frame for local variables or
!           a frame pointer whereas 'OS_main' and 'OS_task' do this as
            needed.
  
! 'signal'
       Use this attribute on the AVR to indicate that the specified
       function is an interrupt handler.  The compiler generates function
       entry and exit sequences suitable for use in an interrupt handler
       when this attribute is present.
  
!      See also the 'interrupt' function attribute.
  
       The AVR hardware globally disables interrupts when an interrupt is
!      executed.  Interrupt handler functions defined with the 'signal'
       attribute do not re-enable interrupts.  It is save to enable
!      interrupts in a 'signal' handler.  This "save" only applies to the
       code generated by the compiler and not to the IRQ layout of the
       application which is responsibility of the application.
  
!      If both 'signal' and 'interrupt' are specified for the same
!      function, 'signal' is silently ignored.
  
  
  File: gcc.info,  Node: Blackfin Function Attributes,  Next: CR16 Function Attributes,  Prev: AVR Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: Blackfin Function
*** 27301,27354 ****
  
  These function attributes are supported by the Blackfin back end:
  
! `exception_handler'
       Use this attribute on the Blackfin to indicate that the specified
       function is an exception handler.  The compiler generates function
       entry and exit sequences suitable for use in an exception handler
       when this attribute is present.
  
! `interrupt_handler'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! `kspisusp'
!      When used together with `interrupt_handler', `exception_handler'
!      or `nmi_handler', code is generated to load the stack pointer from
!      the USP register in the function prologue.
  
! `l1_text'
       This attribute specifies a function to be placed into L1
!      Instruction SRAM. The function is put into a specific section
!      named `.l1.text'.  With `-mfdpic', function calls with a such
       function as the callee or caller uses inlined PLT.
  
! `l2'
       This attribute specifies a function to be placed into L2 SRAM. The
!      function is put into a specific section named `.l2.text'. With
!      `-mfdpic', callers of such functions use an inlined PLT.
  
! `longcall'
! `shortcall'
!      The `longcall' attribute indicates that the function might be far
       away from the call site and require a different (more expensive)
!      calling sequence.  The `shortcall' attribute indicates that the
!      function is always close enough for the shorter calling sequence
!      to be used.  These attributes override the `-mlongcall' switch.
  
! `nesting'
!      Use this attribute together with `interrupt_handler',
!      `exception_handler' or `nmi_handler' to indicate that the function
       entry code should enable nested interrupts or exceptions.
  
! `nmi_handler'
       Use this attribute on the Blackfin to indicate that the specified
       function is an NMI handler.  The compiler generates function entry
       and exit sequences suitable for use in an NMI handler when this
       attribute is present.
  
! `saveall'
       Use this attribute to indicate that all registers except the stack
       pointer should be saved in the prologue regardless of whether they
       are used or not.
--- 27144,27197 ----
  
  These function attributes are supported by the Blackfin back end:
  
! 'exception_handler'
       Use this attribute on the Blackfin to indicate that the specified
       function is an exception handler.  The compiler generates function
       entry and exit sequences suitable for use in an exception handler
       when this attribute is present.
  
! 'interrupt_handler'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! 'kspisusp'
!      When used together with 'interrupt_handler', 'exception_handler' or
!      'nmi_handler', code is generated to load the stack pointer from the
!      USP register in the function prologue.
  
! 'l1_text'
       This attribute specifies a function to be placed into L1
!      Instruction SRAM.  The function is put into a specific section
!      named '.l1.text'.  With '-mfdpic', function calls with a such
       function as the callee or caller uses inlined PLT.
  
! 'l2'
       This attribute specifies a function to be placed into L2 SRAM. The
!      function is put into a specific section named '.l2.text'.  With
!      '-mfdpic', callers of such functions use an inlined PLT.
  
! 'longcall'
! 'shortcall'
!      The 'longcall' attribute indicates that the function might be far
       away from the call site and require a different (more expensive)
!      calling sequence.  The 'shortcall' attribute indicates that the
!      function is always close enough for the shorter calling sequence to
!      be used.  These attributes override the '-mlongcall' switch.
  
! 'nesting'
!      Use this attribute together with 'interrupt_handler',
!      'exception_handler' or 'nmi_handler' to indicate that the function
       entry code should enable nested interrupts or exceptions.
  
! 'nmi_handler'
       Use this attribute on the Blackfin to indicate that the specified
       function is an NMI handler.  The compiler generates function entry
       and exit sequences suitable for use in an NMI handler when this
       attribute is present.
  
! 'saveall'
       Use this attribute to indicate that all registers except the stack
       pointer should be saved in the prologue regardless of whether they
       are used or not.
*************** File: gcc.info,  Node: CR16 Function Att
*** 27361,27367 ****
  
  These function attributes are supported by the CR16 back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 27204,27210 ----
  
  These function attributes are supported by the CR16 back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** File: gcc.info,  Node: Epiphany Function
*** 27375,27392 ****
  
  These function attributes are supported by the Epiphany back end:
  
! `disinterrupt'
       This attribute causes the compiler to emit instructions to disable
       interrupts for the duration of the given function.
  
! `forwarder_section'
       This attribute modifies the behavior of an interrupt handler.  The
!      interrupt handler may be in external memory which cannot be
!      reached by a branch instruction, so generate a local memory
!      trampoline to transfer control.  The single parameter identifies
!      the section where the trampoline is placed.
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 27218,27235 ----
  
  These function attributes are supported by the Epiphany back end:
  
! 'disinterrupt'
       This attribute causes the compiler to emit instructions to disable
       interrupts for the duration of the given function.
  
! 'forwarder_section'
       This attribute modifies the behavior of an interrupt handler.  The
!      interrupt handler may be in external memory which cannot be reached
!      by a branch instruction, so generate a local memory trampoline to
!      transfer control.  The single parameter identifies the section
!      where the trampoline is placed.
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** These function attributes are supported
*** 27398,27414 ****
  
            void __attribute__ ((interrupt ("dma0, dma1"))) universal_dma_handler ();
  
!      Permissible values for these parameters are: `reset',
!      `software_exception', `page_miss', `timer0', `timer1', `message',
!      `dma0', `dma1', `wand' and `swi'.  Multiple parameters indicate
       that multiple entries in the interrupt vector table should be
!      initialized for this function, i.e. for each parameter NAME, a
!      jump to the function is emitted in the section ivt_entry_NAME.
!      The parameter(s) may be omitted entirely, in which case no
!      interrupt vector table entry is provided.
  
       Note that interrupts are enabled inside the function unless the
!      `disinterrupt' attribute is also specified.
  
       The following examples are all valid uses of these attributes on
       Epiphany targets:
--- 27241,27257 ----
  
            void __attribute__ ((interrupt ("dma0, dma1"))) universal_dma_handler ();
  
!      Permissible values for these parameters are: 'reset',
!      'software_exception', 'page_miss', 'timer0', 'timer1', 'message',
!      'dma0', 'dma1', 'wand' and 'swi'.  Multiple parameters indicate
       that multiple entries in the interrupt vector table should be
!      initialized for this function, i.e. for each parameter NAME, a jump
!      to the function is emitted in the section ivt_entry_NAME.  The
!      parameter(s) may be omitted entirely, in which case no interrupt
!      vector table entry is provided.
  
       Note that interrupts are enabled inside the function unless the
!      'disinterrupt' attribute is also specified.
  
       The following examples are all valid uses of these attributes on
       Epiphany targets:
*************** These function attributes are supported
*** 27422,27432 ****
                                 forwarder_section ("tramp")))
              external_dma_handler ();
  
! `long_call'
! `short_call'
       These attributes specify how a particular function is called.
!      These attributes override the `-mlong-calls' (*note Adapteva
!      Epiphany Options::) command-line switch and `#pragma long_calls'
       settings.
  
  
--- 27265,27275 ----
                                 forwarder_section ("tramp")))
              external_dma_handler ();
  
! 'long_call'
! 'short_call'
       These attributes specify how a particular function is called.
!      These attributes override the '-mlong-calls' (*note Adapteva
!      Epiphany Options::) command-line switch and '#pragma long_calls'
       settings.
  
  
*************** File: gcc.info,  Node: H8/300 Function A
*** 27437,27457 ****
  
  These function attributes are available for H8/300 targets:
  
! `function_vector'
!      Use this attribute on the H8/300, H8/300H, and H8S to indicate
!      that the specified function should be called through the function
       vector.  Calling a function through the function vector reduces
!      code size; however, the function vector has a limited size
!      (maximum 128 entries on the H8/300 and 64 entries on the H8/300H
!      and H8S) and shares space with the interrupt vector.
  
! `interrupt_handler'
!      Use this attribute on the H8/300, H8/300H, and H8S to indicate
!      that the specified function is an interrupt handler.  The compiler
       generates function entry and exit sequences suitable for use in an
       interrupt handler when this attribute is present.
  
! `saveall'
       Use this attribute on the H8/300, H8/300H, and H8S to indicate that
       all registers except the stack pointer should be saved in the
       prologue regardless of whether they are used or not.
--- 27280,27300 ----
  
  These function attributes are available for H8/300 targets:
  
! 'function_vector'
!      Use this attribute on the H8/300, H8/300H, and H8S to indicate that
!      the specified function should be called through the function
       vector.  Calling a function through the function vector reduces
!      code size; however, the function vector has a limited size (maximum
!      128 entries on the H8/300 and 64 entries on the H8/300H and H8S)
!      and shares space with the interrupt vector.
  
! 'interrupt_handler'
!      Use this attribute on the H8/300, H8/300H, and H8S to indicate that
!      the specified function is an interrupt handler.  The compiler
       generates function entry and exit sequences suitable for use in an
       interrupt handler when this attribute is present.
  
! 'saveall'
       Use this attribute on the H8/300, H8/300H, and H8S to indicate that
       all registers except the stack pointer should be saved in the
       prologue regardless of whether they are used or not.
*************** File: gcc.info,  Node: IA-64 Function At
*** 27464,27477 ****
  
  These function attributes are supported on IA-64 targets:
  
! `syscall_linkage'
       This attribute is used to modify the IA-64 calling convention by
       marking all input registers as live at all function exits.  This
       makes it possible to restart a system call after an interrupt
       without having to save/restore the input registers.  This also
       prevents kernel data from leaking into application code.
  
! `version_id'
       This IA-64 HP-UX attribute, attached to a global variable or
       function, renames a symbol to contain a version string, thus
       allowing for function level versioning.  HP-UX system header files
--- 27307,27320 ----
  
  These function attributes are supported on IA-64 targets:
  
! 'syscall_linkage'
       This attribute is used to modify the IA-64 calling convention by
       marking all input registers as live at all function exits.  This
       makes it possible to restart a system call after an interrupt
       without having to save/restore the input registers.  This also
       prevents kernel data from leaking into application code.
  
! 'version_id'
       This IA-64 HP-UX attribute, attached to a global variable or
       function, renames a symbol to contain a version string, thus
       allowing for function level versioning.  HP-UX system header files
*************** These function attributes are supported
*** 27479,27485 ****
  
            extern int foo () __attribute__((version_id ("20040821")));
  
!      Calls to `foo' are mapped to calls to `foo{20040821}'.
  
  
  File: gcc.info,  Node: M32C Function Attributes,  Next: M32R/D Function Attributes,  Prev: IA-64 Function Attributes,  Up: Function Attributes
--- 27322,27328 ----
  
            extern int foo () __attribute__((version_id ("20040821")));
  
!      Calls to 'foo' are mapped to calls to 'foo{20040821}'.
  
  
  File: gcc.info,  Node: M32C Function Attributes,  Next: M32R/D Function Attributes,  Prev: IA-64 Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: M32C Function Att
*** 27489,27513 ****
  
  These function attributes are supported by the M32C back end:
  
! `bank_switch'
       When added to an interrupt handler with the M32C port, causes the
       prologue and epilogue to use bank switching to preserve the
       registers rather than saving them on the stack.
  
! `fast_interrupt'
       Use this attribute on the M32C port to indicate that the specified
       function is a fast interrupt handler.  This is just like the
!      `interrupt' attribute, except that `freit' is used to return
!      instead of `reit'.
  
! `function_vector'
!      On M16C/M32C targets, the `function_vector' attribute declares a
!      special page subroutine call function. Use of this attribute
       reduces the code size by 2 bytes for each call generated to the
!      subroutine. The argument to the attribute is the vector number
       entry from the special page vector table which contains the 16
!      low-order bits of the subroutine's entry address. Each vector
!      table has special page number (18 to 255) that is used in `jsrs'
       instructions.  Jump addresses of the routines are generated by
       adding 0x0F0000 (in case of M16C targets) or 0xFF0000 (in case of
       M32C targets), to the 2-byte addresses set in the vector table.
--- 27332,27356 ----
  
  These function attributes are supported by the M32C back end:
  
! 'bank_switch'
       When added to an interrupt handler with the M32C port, causes the
       prologue and epilogue to use bank switching to preserve the
       registers rather than saving them on the stack.
  
! 'fast_interrupt'
       Use this attribute on the M32C port to indicate that the specified
       function is a fast interrupt handler.  This is just like the
!      'interrupt' attribute, except that 'freit' is used to return
!      instead of 'reit'.
  
! 'function_vector'
!      On M16C/M32C targets, the 'function_vector' attribute declares a
!      special page subroutine call function.  Use of this attribute
       reduces the code size by 2 bytes for each call generated to the
!      subroutine.  The argument to the attribute is the vector number
       entry from the special page vector table which contains the 16
!      low-order bits of the subroutine's entry address.  Each vector
!      table has special page number (18 to 255) that is used in 'jsrs'
       instructions.  Jump addresses of the routines are generated by
       adding 0x0F0000 (in case of M16C targets) or 0xFF0000 (in case of
       M32C targets), to the 2-byte addresses set in the vector table.
*************** These function attributes are supported
*** 27516,27522 ****
       0x0FFFFF (for M16C) and 0xFF0000 to 0xFFFFFF (for M32C).
  
       In the following example 2 bytes are saved for each call to
!      function `foo'.
  
            void foo (void) __attribute__((function_vector(0x18)));
            void foo (void)
--- 27359,27365 ----
       0x0FFFFF (for M16C) and 0xFF0000 to 0xFFFFFF (for M32C).
  
       In the following example 2 bytes are saved for each call to
!      function 'foo'.
  
            void foo (void) __attribute__((function_vector(0x18)));
            void foo (void)
*************** These function attributes are supported
*** 27533,27539 ****
  
       This attribute is ignored for R8C target.
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 27376,27382 ----
  
       This attribute is ignored for R8C target.
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** File: gcc.info,  Node: M32R/D Function A
*** 27547,27576 ****
  
  These function attributes are supported by the M32R/D back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! `model (MODEL-NAME)'
       On the M32R/D, use this attribute to set the addressability of an
       object, and of the code generated for a function.  The identifier
!      MODEL-NAME is one of `small', `medium', or `large', representing
       each of the code models.
  
       Small model objects live in the lower 16MB of memory (so that their
!      addresses can be loaded with the `ld24' instruction), and are
!      callable with the `bl' instruction.
  
       Medium model objects may live anywhere in the 32-bit address space
!      (the compiler generates `seth/add3' instructions to load their
!      addresses), and are callable with the `bl' instruction.
  
       Large model objects may live anywhere in the 32-bit address space
!      (the compiler generates `seth/add3' instructions to load their
!      addresses), and may not be reachable with the `bl' instruction
!      (the compiler generates the much slower `seth/add3/jl' instruction
       sequence).
  
  
--- 27390,27420 ----
  
  These function attributes are supported by the M32R/D back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! 'model (MODEL-NAME)'
! 
       On the M32R/D, use this attribute to set the addressability of an
       object, and of the code generated for a function.  The identifier
!      MODEL-NAME is one of 'small', 'medium', or 'large', representing
       each of the code models.
  
       Small model objects live in the lower 16MB of memory (so that their
!      addresses can be loaded with the 'ld24' instruction), and are
!      callable with the 'bl' instruction.
  
       Medium model objects may live anywhere in the 32-bit address space
!      (the compiler generates 'seth/add3' instructions to load their
!      addresses), and are callable with the 'bl' instruction.
  
       Large model objects may live anywhere in the 32-bit address space
!      (the compiler generates 'seth/add3' instructions to load their
!      addresses), and may not be reachable with the 'bl' instruction (the
!      compiler generates the much slower 'seth/add3/jl' instruction
       sequence).
  
  
*************** File: gcc.info,  Node: m68k Function Att
*** 27581,27599 ****
  
  These function attributes are supported by the m68k back end:
  
! `interrupt'
! `interrupt_handler'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.  Either name may be used.
  
! `interrupt_thread'
       Use this attribute on fido, a subarchitecture of the m68k, to
       indicate that the specified function is an interrupt handler that
       is designed to run as a thread.  The compiler omits generate
       prologue/epilogue sequences and replaces the return instruction
!      with a `sleep' instruction.  This attribute is available only on
       fido.
  
  
--- 27425,27443 ----
  
  These function attributes are supported by the m68k back end:
  
! 'interrupt'
! 'interrupt_handler'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.  Either name may be used.
  
! 'interrupt_thread'
       Use this attribute on fido, a subarchitecture of the m68k, to
       indicate that the specified function is an interrupt handler that
       is designed to run as a thread.  The compiler omits generate
       prologue/epilogue sequences and replaces the return instruction
!      with a 'sleep' instruction.  This attribute is available only on
       fido.
  
  
*************** File: gcc.info,  Node: MCORE Function At
*** 27604,27617 ****
  
  These function attributes are supported by the MCORE back end:
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
  
--- 27448,27461 ----
  
  These function attributes are supported by the MCORE back end:
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
  
*************** File: gcc.info,  Node: MeP Function Attr
*** 27622,27650 ****
  
  These function attributes are supported by the MeP back end:
  
! `disinterrupt'
       On MeP targets, this attribute causes the compiler to emit
       instructions to disable interrupts for the duration of the given
       function.
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! `near'
!      This attribute causes the compiler to assume the called function
!      is close enough to use the normal calling convention, overriding
!      the `-mtf' command-line option.
  
! `far'
       On MeP targets this causes the compiler to use a calling convention
       that assumes the called function is too far away for the built-in
       addressing modes.
  
! `vliw'
!      The `vliw' attribute tells the compiler to emit instructions in
       VLIW mode instead of core mode.  Note that this attribute is not
       allowed unless a VLIW coprocessor has been configured and enabled
       through command-line options.
--- 27466,27494 ----
  
  These function attributes are supported by the MeP back end:
  
! 'disinterrupt'
       On MeP targets, this attribute causes the compiler to emit
       instructions to disable interrupts for the duration of the given
       function.
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! 'near'
!      This attribute causes the compiler to assume the called function is
!      close enough to use the normal calling convention, overriding the
!      '-mtf' command-line option.
  
! 'far'
       On MeP targets this causes the compiler to use a calling convention
       that assumes the called function is too far away for the built-in
       addressing modes.
  
! 'vliw'
!      The 'vliw' attribute tells the compiler to emit instructions in
       VLIW mode instead of core mode.  Note that this attribute is not
       allowed unless a VLIW coprocessor has been configured and enabled
       through command-line options.
*************** File: gcc.info,  Node: MicroBlaze Functi
*** 27657,27663 ****
  
  These function attributes are supported on MicroBlaze targets:
  
! `save_volatiles'
       Use this attribute to indicate that the function is an interrupt
       handler.  All volatile registers (in addition to non-volatile
       registers) are saved in the function prologue.  If the function is
--- 27501,27507 ----
  
  These function attributes are supported on MicroBlaze targets:
  
! 'save_volatiles'
       Use this attribute to indicate that the function is an interrupt
       handler.  All volatile registers (in addition to non-volatile
       registers) are saved in the function prologue.  If the function is
*************** These function attributes are supported
*** 27665,27687 ****
       normal function return is generated instead of a return from
       interrupt.
  
! `break_handler'
       Use this attribute to indicate that the specified function is a
       break handler.  The compiler generates function entry and exit
       sequences suitable for use in an break handler when this attribute
!      is present. The return from `break_handler' is done through the
!      `rtbd' instead of `rtsd'.
  
            void f () __attribute__ ((break_handler));
  
! `interrupt_handler'
! `fast_interrupt'
       These attributes indicate that the specified function is an
!      interrupt handler.  Use the `fast_interrupt' attribute to indicate
       handlers used in low-latency interrupt mode, and
!      `interrupt_handler' for interrupts that do not use low-latency
       handlers.  In both cases, GCC emits appropriate prologue code and
!      generates a return from the handler using `rtid' instead of `rtsd'.
  
  
  File: gcc.info,  Node: Microsoft Windows Function Attributes,  Next: MIPS Function Attributes,  Prev: MicroBlaze Function Attributes,  Up: Function Attributes
--- 27509,27531 ----
       normal function return is generated instead of a return from
       interrupt.
  
! 'break_handler'
       Use this attribute to indicate that the specified function is a
       break handler.  The compiler generates function entry and exit
       sequences suitable for use in an break handler when this attribute
!      is present.  The return from 'break_handler' is done through the
!      'rtbd' instead of 'rtsd'.
  
            void f () __attribute__ ((break_handler));
  
! 'interrupt_handler'
! 'fast_interrupt'
       These attributes indicate that the specified function is an
!      interrupt handler.  Use the 'fast_interrupt' attribute to indicate
       handlers used in low-latency interrupt mode, and
!      'interrupt_handler' for interrupts that do not use low-latency
       handlers.  In both cases, GCC emits appropriate prologue code and
!      generates a return from the handler using 'rtid' instead of 'rtsd'.
  
  
  File: gcc.info,  Node: Microsoft Windows Function Attributes,  Next: MIPS Function Attributes,  Prev: MicroBlaze Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: Microsoft Windows
*** 27692,27718 ****
  The following attributes are available on Microsoft Windows and Symbian
  OS targets.
  
! `dllexport'
!      On Microsoft Windows targets and Symbian OS targets the
!      `dllexport' attribute causes the compiler to provide a global
!      pointer to a pointer in a DLL, so that it can be referenced with
!      the `dllimport' attribute.  On Microsoft Windows targets, the
!      pointer name is formed by combining `_imp__' and the function or
!      variable name.
  
!      You can use `__declspec(dllexport)' as a synonym for
!      `__attribute__ ((dllexport))' for compatibility with other
!      compilers.
  
!      On systems that support the `visibility' attribute, this attribute
       also implies "default" visibility.  It is an error to explicitly
       specify any other visibility.
  
       GCC's default behavior is to emit all inline functions with the
!      `dllexport' attribute.  Since this can cause object file-size
!      bloat, you can use `-fno-keep-inline-dllexport', which tells GCC to
       ignore the attribute for inlined functions unless the
!      `-fkeep-inline-functions' flag is used instead.
  
       The attribute is ignored for undefined symbols.
  
--- 27536,27560 ----
  The following attributes are available on Microsoft Windows and Symbian
  OS targets.
  
! 'dllexport'
!      On Microsoft Windows targets and Symbian OS targets the 'dllexport'
!      attribute causes the compiler to provide a global pointer to a
!      pointer in a DLL, so that it can be referenced with the 'dllimport'
!      attribute.  On Microsoft Windows targets, the pointer name is
!      formed by combining '_imp__' and the function or variable name.
  
!      You can use '__declspec(dllexport)' as a synonym for '__attribute__
!      ((dllexport))' for compatibility with other compilers.
  
!      On systems that support the 'visibility' attribute, this attribute
       also implies "default" visibility.  It is an error to explicitly
       specify any other visibility.
  
       GCC's default behavior is to emit all inline functions with the
!      'dllexport' attribute.  Since this can cause object file-size
!      bloat, you can use '-fno-keep-inline-dllexport', which tells GCC to
       ignore the attribute for inlined functions unless the
!      '-fkeep-inline-functions' flag is used instead.
  
       The attribute is ignored for undefined symbols.
  
*************** OS targets.
*** 27723,27782 ****
  
       For Microsoft Windows targets there are alternative methods for
       including the symbol in the DLL's export table such as using a
!      `.def' file with an `EXPORTS' section or, with GNU ld, using the
!      `--export-all' linker flag.
  
! `dllimport'
!      On Microsoft Windows and Symbian OS targets, the `dllimport'
       attribute causes the compiler to reference a function or variable
       via a global pointer to a pointer that is set up by the DLL
!      exporting the symbol.  The attribute implies `extern'.  On
       Microsoft Windows targets, the pointer name is formed by combining
!      `_imp__' and the function or variable name.
  
!      You can use `__declspec(dllimport)' as a synonym for
!      `__attribute__ ((dllimport))' for compatibility with other
!      compilers.
  
!      On systems that support the `visibility' attribute, this attribute
       also implies "default" visibility.  It is an error to explicitly
       specify any other visibility.
  
       Currently, the attribute is ignored for inlined functions.  If the
       attribute is applied to a symbol _definition_, an error is
!      reported.  If a symbol previously declared `dllimport' is later
       defined, the attribute is ignored in subsequent references, and a
       warning is emitted.  The attribute is also overridden by a
!      subsequent declaration as `dllexport'.
  
!      When applied to C++ classes, the attribute marks non-inlined
!      member functions and static data members as imports.  However, the
       attribute is ignored for virtual methods to allow creation of
       vtables using thunks.
  
!      On the SH Symbian OS target the `dllimport' attribute also has
       another affect--it can cause the vtable and run-time type
       information for a class to be exported.  This happens when the
       class has a dllimported constructor or a non-inline, non-pure
!      virtual function and, for either of those two conditions, the
!      class also has an inline constructor or destructor and has a key
!      function that is defined in the current translation unit.
  
!      For Microsoft Windows targets the use of the `dllimport' attribute
       on functions is not necessary, but provides a small performance
       benefit by eliminating a thunk in the DLL.  The use of the
!      `dllimport' attribute on imported variables can be avoided by
!      passing the `--enable-auto-import' switch to the GNU linker.  As
       with functions, using the attribute for a variable eliminates a
       thunk in the DLL.
  
       One drawback to using this attribute is that a pointer to a
!      _variable_ marked as `dllimport' cannot be used as a constant
!      address. However, a pointer to a _function_ with the `dllimport'
       attribute can be used as a constant initializer; in this case, the
       address of a stub function in the import lib is referenced.  On
       Microsoft Windows targets, the attribute can be disabled for
!      functions by setting the `-mnop-fun-dllimport' flag.
  
  
  File: gcc.info,  Node: MIPS Function Attributes,  Next: MSP430 Function Attributes,  Prev: Microsoft Windows Function Attributes,  Up: Function Attributes
--- 27565,27623 ----
  
       For Microsoft Windows targets there are alternative methods for
       including the symbol in the DLL's export table such as using a
!      '.def' file with an 'EXPORTS' section or, with GNU ld, using the
!      '--export-all' linker flag.
  
! 'dllimport'
!      On Microsoft Windows and Symbian OS targets, the 'dllimport'
       attribute causes the compiler to reference a function or variable
       via a global pointer to a pointer that is set up by the DLL
!      exporting the symbol.  The attribute implies 'extern'.  On
       Microsoft Windows targets, the pointer name is formed by combining
!      '_imp__' and the function or variable name.
  
!      You can use '__declspec(dllimport)' as a synonym for '__attribute__
!      ((dllimport))' for compatibility with other compilers.
  
!      On systems that support the 'visibility' attribute, this attribute
       also implies "default" visibility.  It is an error to explicitly
       specify any other visibility.
  
       Currently, the attribute is ignored for inlined functions.  If the
       attribute is applied to a symbol _definition_, an error is
!      reported.  If a symbol previously declared 'dllimport' is later
       defined, the attribute is ignored in subsequent references, and a
       warning is emitted.  The attribute is also overridden by a
!      subsequent declaration as 'dllexport'.
  
!      When applied to C++ classes, the attribute marks non-inlined member
!      functions and static data members as imports.  However, the
       attribute is ignored for virtual methods to allow creation of
       vtables using thunks.
  
!      On the SH Symbian OS target the 'dllimport' attribute also has
       another affect--it can cause the vtable and run-time type
       information for a class to be exported.  This happens when the
       class has a dllimported constructor or a non-inline, non-pure
!      virtual function and, for either of those two conditions, the class
!      also has an inline constructor or destructor and has a key function
!      that is defined in the current translation unit.
  
!      For Microsoft Windows targets the use of the 'dllimport' attribute
       on functions is not necessary, but provides a small performance
       benefit by eliminating a thunk in the DLL.  The use of the
!      'dllimport' attribute on imported variables can be avoided by
!      passing the '--enable-auto-import' switch to the GNU linker.  As
       with functions, using the attribute for a variable eliminates a
       thunk in the DLL.
  
       One drawback to using this attribute is that a pointer to a
!      _variable_ marked as 'dllimport' cannot be used as a constant
!      address.  However, a pointer to a _function_ with the 'dllimport'
       attribute can be used as a constant initializer; in this case, the
       address of a stub function in the import lib is referenced.  On
       Microsoft Windows targets, the attribute can be disabled for
!      functions by setting the '-mnop-fun-dllimport' flag.
  
  
  File: gcc.info,  Node: MIPS Function Attributes,  Next: MSP430 Function Attributes,  Prev: Microsoft Windows Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: MIPS Function Att
*** 27786,27792 ****
  
  These function attributes are supported by the MIPS back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 27627,27633 ----
  
  These function attributes are supported by the MIPS back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** These function attributes are supported
*** 27794,27824 ****
       interrupt attribute which allows the interrupt mode to be
       described.  By default GCC assumes the external interrupt
       controller (EIC) mode is in use, this can be explicitly set using
!      `eic'.  When interrupts are non-masked then the requested Interrupt
       Priority Level (IPL) is copied to the current IPL which has the
       effect of only enabling higher priority interrupts.  To use
       vectored interrupt mode use the argument
!      `vector=[sw0|sw1|hw0|hw1|hw2|hw3|hw4|hw5]', this will change the
       behavior of the non-masked interrupt support and GCC will arrange
       to mask all interrupts from sw0 up to and including the specified
       interrupt vector.
  
       You can use the following attributes to modify the behavior of an
       interrupt handler:
!     `use_shadow_register_set'
            Assume that the handler uses a shadow register set, instead of
            the main general-purpose registers.  An optional argument
!           `intstack' is supported to indicate that the shadow register
            set contains a valid stack pointer.
  
!     `keep_interrupts_masked'
            Keep interrupts masked for the whole function.  Without this
!           attribute, GCC tries to reenable interrupts for as much of
!           the function as it can.
  
!     `use_debug_exception_return'
!           Return using the `deret' instruction.  Interrupt handlers
!           that don't have this attribute return using `eret' instead.
  
       You can use any combination of these attributes, as shown below:
            void __attribute__ ((interrupt)) v0 ();
--- 27635,27665 ----
       interrupt attribute which allows the interrupt mode to be
       described.  By default GCC assumes the external interrupt
       controller (EIC) mode is in use, this can be explicitly set using
!      'eic'.  When interrupts are non-masked then the requested Interrupt
       Priority Level (IPL) is copied to the current IPL which has the
       effect of only enabling higher priority interrupts.  To use
       vectored interrupt mode use the argument
!      'vector=[sw0|sw1|hw0|hw1|hw2|hw3|hw4|hw5]', this will change the
       behavior of the non-masked interrupt support and GCC will arrange
       to mask all interrupts from sw0 up to and including the specified
       interrupt vector.
  
       You can use the following attributes to modify the behavior of an
       interrupt handler:
!      'use_shadow_register_set'
            Assume that the handler uses a shadow register set, instead of
            the main general-purpose registers.  An optional argument
!           'intstack' is supported to indicate that the shadow register
            set contains a valid stack pointer.
  
!      'keep_interrupts_masked'
            Keep interrupts masked for the whole function.  Without this
!           attribute, GCC tries to reenable interrupts for as much of the
!           function as it can.
  
!      'use_debug_exception_return'
!           Return using the 'deret' instruction.  Interrupt handlers that
!           don't have this attribute return using 'eret' instead.
  
       You can use any combination of these attributes, as shown below:
            void __attribute__ ((interrupt)) v0 ();
*************** These function attributes are supported
*** 27837,27890 ****
            void __attribute__ ((interrupt("eic"))) v8 ();
            void __attribute__ ((interrupt("vector=hw3"))) v9 ();
  
! `long_call'
! `near'
! `far'
       These attributes specify how a particular function is called on
!      MIPS.  The attributes override the `-mlong-calls' (*note MIPS
!      Options::) command-line switch.  The `long_call' and `far'
       attributes are synonyms, and cause the compiler to always call the
       function by first loading its address into a register, and then
!      using the contents of that register.  The `near' attribute has the
       opposite effect; it specifies that non-PIC calls should be made
!      using the more efficient `jal' instruction.
  
! `mips16'
! `nomips16'
!      On MIPS targets, you can use the `mips16' and `nomips16' function
!      attributes to locally select or turn off MIPS16 code generation.
!      A function with the `mips16' attribute is emitted as MIPS16 code,
       while MIPS16 code generation is disabled for functions with the
!      `nomips16' attribute.  These attributes override the `-mips16' and
!      `-mno-mips16' options on the command line (*note MIPS Options::).
  
       When compiling files containing mixed MIPS16 and non-MIPS16 code,
!      the preprocessor symbol `__mips16' reflects the setting on the
       command line, not that within individual functions.  Mixed MIPS16
       and non-MIPS16 code may interact badly with some GCC extensions
!      such as `__builtin_apply' (*note Constructing Calls::).
  
! `micromips, MIPS'
! `nomicromips, MIPS'
!      On MIPS targets, you can use the `micromips' and `nomicromips'
       function attributes to locally select or turn off microMIPS code
!      generation.  A function with the `micromips' attribute is emitted
       as microMIPS code, while microMIPS code generation is disabled for
!      functions with the `nomicromips' attribute.  These attributes
!      override the `-mmicromips' and `-mno-micromips' options on the
       command line (*note MIPS Options::).
  
       When compiling files containing mixed microMIPS and non-microMIPS
!      code, the preprocessor symbol `__mips_micromips' reflects the
       setting on the command line, not that within individual functions.
!      Mixed microMIPS and non-microMIPS code may interact badly with
!      some GCC extensions such as `__builtin_apply' (*note Constructing
       Calls::).
  
! `nocompression'
!      On MIPS targets, you can use the `nocompression' function attribute
       to locally turn off MIPS16 and microMIPS code generation.  This
!      attribute overrides the `-mips16' and `-mmicromips' options on the
       command line (*note MIPS Options::).
  
  
--- 27678,27733 ----
            void __attribute__ ((interrupt("eic"))) v8 ();
            void __attribute__ ((interrupt("vector=hw3"))) v9 ();
  
! 'long_call'
! 'near'
! 'far'
       These attributes specify how a particular function is called on
!      MIPS.  The attributes override the '-mlong-calls' (*note MIPS
!      Options::) command-line switch.  The 'long_call' and 'far'
       attributes are synonyms, and cause the compiler to always call the
       function by first loading its address into a register, and then
!      using the contents of that register.  The 'near' attribute has the
       opposite effect; it specifies that non-PIC calls should be made
!      using the more efficient 'jal' instruction.
  
! 'mips16'
! 'nomips16'
! 
!      On MIPS targets, you can use the 'mips16' and 'nomips16' function
!      attributes to locally select or turn off MIPS16 code generation.  A
!      function with the 'mips16' attribute is emitted as MIPS16 code,
       while MIPS16 code generation is disabled for functions with the
!      'nomips16' attribute.  These attributes override the '-mips16' and
!      '-mno-mips16' options on the command line (*note MIPS Options::).
  
       When compiling files containing mixed MIPS16 and non-MIPS16 code,
!      the preprocessor symbol '__mips16' reflects the setting on the
       command line, not that within individual functions.  Mixed MIPS16
       and non-MIPS16 code may interact badly with some GCC extensions
!      such as '__builtin_apply' (*note Constructing Calls::).
  
! 'micromips, MIPS'
! 'nomicromips, MIPS'
! 
!      On MIPS targets, you can use the 'micromips' and 'nomicromips'
       function attributes to locally select or turn off microMIPS code
!      generation.  A function with the 'micromips' attribute is emitted
       as microMIPS code, while microMIPS code generation is disabled for
!      functions with the 'nomicromips' attribute.  These attributes
!      override the '-mmicromips' and '-mno-micromips' options on the
       command line (*note MIPS Options::).
  
       When compiling files containing mixed microMIPS and non-microMIPS
!      code, the preprocessor symbol '__mips_micromips' reflects the
       setting on the command line, not that within individual functions.
!      Mixed microMIPS and non-microMIPS code may interact badly with some
!      GCC extensions such as '__builtin_apply' (*note Constructing
       Calls::).
  
! 'nocompression'
!      On MIPS targets, you can use the 'nocompression' function attribute
       to locally turn off MIPS16 and microMIPS code generation.  This
!      attribute overrides the '-mips16' and '-mmicromips' options on the
       command line (*note MIPS Options::).
  
  
*************** File: gcc.info,  Node: MSP430 Function A
*** 27895,27907 ****
  
  These function attributes are supported by the MSP430 back end:
  
! `critical'
       Critical functions disable interrupts upon entry and restore the
       previous interrupt state upon exit.  Critical functions cannot also
!      have the `naked' or `reentrant' attributes.  They can have the
!      `interrupt' attribute.
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 27738,27750 ----
  
  These function attributes are supported by the MSP430 back end:
  
! 'critical'
       Critical functions disable interrupts upon entry and restore the
       previous interrupt state upon exit.  Critical functions cannot also
!      have the 'naked' or 'reentrant' attributes.  They can have the
!      'interrupt' attribute.
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** These function attributes are supported
*** 27913,27945 ****
       this handler should be assigned.  If the argument is a name it is
       treated as a symbolic name for the vector slot.  These names should
       match up with appropriate entries in the linker script.  By default
!      the names `watchdog' for vector 26, `nmi' for vector 30 and
!      `reset' for vector 31 are recognized.
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! `reentrant'
       Reentrant functions disable interrupts upon entry and enable them
!      upon exit.  Reentrant functions cannot also have the `naked' or
!      `critical' attributes.  They can have the `interrupt' attribute.
  
! `wakeup'
       This attribute only applies to interrupt functions.  It is silently
       ignored if applied to a non-interrupt function.  A wakeup interrupt
       function will rouse the processor from any low-power state that it
       might be in when the function exits.
  
! `lower'
! `upper'
! `either'
       On the MSP430 target these attributes can be used to specify
       whether the function or variable should be placed into low memory,
       high memory, or the placement should be left to the linker to
--- 27756,27788 ----
       this handler should be assigned.  If the argument is a name it is
       treated as a symbolic name for the vector slot.  These names should
       match up with appropriate entries in the linker script.  By default
!      the names 'watchdog' for vector 26, 'nmi' for vector 30 and 'reset'
!      for vector 31 are recognized.
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! 'reentrant'
       Reentrant functions disable interrupts upon entry and enable them
!      upon exit.  Reentrant functions cannot also have the 'naked' or
!      'critical' attributes.  They can have the 'interrupt' attribute.
  
! 'wakeup'
       This attribute only applies to interrupt functions.  It is silently
       ignored if applied to a non-interrupt function.  A wakeup interrupt
       function will rouse the processor from any low-power state that it
       might be in when the function exits.
  
! 'lower'
! 'upper'
! 'either'
       On the MSP430 target these attributes can be used to specify
       whether the function or variable should be placed into low memory,
       high memory, or the placement should be left to the linker to
*************** These function attributes are supported
*** 27947,27970 ****
       MSP430X architecture.
  
       The attributes work in conjunction with a linker script that has
!      been augmented to specify where to place sections with a `.lower'
!      and a `.upper' prefix.  So, for example, as well as placing the
!      `.data' section, the script also specifies the placement of a
!      `.lower.data' and a `.upper.data' section.  The intention is that
!      `lower' sections are placed into a small but easier to access
       memory region and the upper sections are placed into a larger, but
       slower to access, region.
  
!      The `either' attribute is special.  It tells the linker to place
!      the object into the corresponding `lower' section if there is room
       for it.  If there is insufficient room then the object is placed
!      into the corresponding `upper' section instead.  Note that the
!      placement algorithm is not very sophisticated.  It does not
!      attempt to find an optimal packing of the `lower' sections.  It
!      just makes one pass over the objects and does the best that it
!      can.  Using the `-ffunction-sections' and `-fdata-sections'
!      command-line options can help the packing, however, since they
!      produce smaller, easier to pack regions.
  
  
  File: gcc.info,  Node: NDS32 Function Attributes,  Next: Nios II Function Attributes,  Prev: MSP430 Function Attributes,  Up: Function Attributes
--- 27790,27813 ----
       MSP430X architecture.
  
       The attributes work in conjunction with a linker script that has
!      been augmented to specify where to place sections with a '.lower'
!      and a '.upper' prefix.  So, for example, as well as placing the
!      '.data' section, the script also specifies the placement of a
!      '.lower.data' and a '.upper.data' section.  The intention is that
!      'lower' sections are placed into a small but easier to access
       memory region and the upper sections are placed into a larger, but
       slower to access, region.
  
!      The 'either' attribute is special.  It tells the linker to place
!      the object into the corresponding 'lower' section if there is room
       for it.  If there is insufficient room then the object is placed
!      into the corresponding 'upper' section instead.  Note that the
!      placement algorithm is not very sophisticated.  It does not attempt
!      to find an optimal packing of the 'lower' sections.  It just makes
!      one pass over the objects and does the best that it can.  Using the
!      '-ffunction-sections' and '-fdata-sections' command-line options
!      can help the packing, however, since they produce smaller, easier
!      to pack regions.
  
  
  File: gcc.info,  Node: NDS32 Function Attributes,  Next: Nios II Function Attributes,  Prev: MSP430 Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: NDS32 Function At
*** 27974,28028 ****
  
  These function attributes are supported by the NDS32 back end:
  
! `exception'
       Use this attribute on the NDS32 target to indicate that the
       specified function is an exception handler.  The compiler will
       generate corresponding sections for use in an exception handler.
  
! `interrupt'
       On NDS32 target, this attribute indicates that the specified
       function is an interrupt handler.  The compiler generates
       corresponding sections for use in an interrupt handler.  You can
       use the following attributes to modify the behavior:
!     `nested'
            This interrupt service routine is interruptible.
! 
!     `not_nested'
            This interrupt service routine is not interruptible.
! 
!     `nested_ready'
            This interrupt service routine is interruptible after
!           `PSW.GIE' (global interrupt enable) is set.  This allows
            interrupt service routine to finish some short critical code
            before enabling interrupts.
! 
!     `save_all'
            The system will help save all registers into stack before
            entering interrupt handler.
! 
!     `partial_save'
            The system will help save caller registers into stack before
            entering interrupt handler.
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! `reset'
       Use this attribute on the NDS32 target to indicate that the
       specified function is a reset handler.  The compiler will generate
!      corresponding sections for use in a reset handler.  You can use
!      the following attributes to provide extra exception handling:
!     `nmi'
            Provide a user-defined function to handle NMI exception.
! 
!     `warm'
            Provide a user-defined function to handle warm reset
            exception.
  
--- 27817,27866 ----
  
  These function attributes are supported by the NDS32 back end:
  
! 'exception'
       Use this attribute on the NDS32 target to indicate that the
       specified function is an exception handler.  The compiler will
       generate corresponding sections for use in an exception handler.
  
! 'interrupt'
       On NDS32 target, this attribute indicates that the specified
       function is an interrupt handler.  The compiler generates
       corresponding sections for use in an interrupt handler.  You can
       use the following attributes to modify the behavior:
!      'nested'
            This interrupt service routine is interruptible.
!      'not_nested'
            This interrupt service routine is not interruptible.
!      'nested_ready'
            This interrupt service routine is interruptible after
!           'PSW.GIE' (global interrupt enable) is set.  This allows
            interrupt service routine to finish some short critical code
            before enabling interrupts.
!      'save_all'
            The system will help save all registers into stack before
            entering interrupt handler.
!      'partial_save'
            The system will help save caller registers into stack before
            entering interrupt handler.
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! 'reset'
       Use this attribute on the NDS32 target to indicate that the
       specified function is a reset handler.  The compiler will generate
!      corresponding sections for use in a reset handler.  You can use the
!      following attributes to provide extra exception handling:
!      'nmi'
            Provide a user-defined function to handle NMI exception.
!      'warm'
            Provide a user-defined function to handle warm reset
            exception.
  
*************** File: gcc.info,  Node: Nios II Function
*** 28034,28057 ****
  
  These function attributes are supported by the Nios II back end:
  
! `target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       When compiling for Nios II, the following options are allowed:
  
!     `custom-INSN=N'
!     `no-custom-INSN'
!           Each `custom-INSN=N' attribute locally enables use of a
!           custom instruction with encoding N when generating code that
!           uses INSN.  Similarly, `no-custom-INSN' locally inhibits use
!           of the custom instruction INSN.  These target attributes
!           correspond to the `-mcustom-INSN=N' and `-mno-custom-INSN'
!           command-line options, and support the same set of INSN
!           keywords.  *Note Nios II Options::, for more information.
  
!     `custom-fpu-cfg=NAME'
!           This attribute corresponds to the `-mcustom-fpu-cfg=NAME'
            command-line option, to select a predefined set of custom
            instructions named NAME.  *Note Nios II Options::, for more
            information.
--- 27872,27895 ----
  
  These function attributes are supported by the Nios II back end:
  
! 'target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       When compiling for Nios II, the following options are allowed:
  
!      'custom-INSN=N'
!      'no-custom-INSN'
!           Each 'custom-INSN=N' attribute locally enables use of a custom
!           instruction with encoding N when generating code that uses
!           INSN.  Similarly, 'no-custom-INSN' locally inhibits use of the
!           custom instruction INSN.  These target attributes correspond
!           to the '-mcustom-INSN=N' and '-mno-custom-INSN' command-line
!           options, and support the same set of INSN keywords.  *Note
!           Nios II Options::, for more information.
  
!      'custom-fpu-cfg=NAME'
!           This attribute corresponds to the '-mcustom-fpu-cfg=NAME'
            command-line option, to select a predefined set of custom
            instructions named NAME.  *Note Nios II Options::, for more
            information.
*************** File: gcc.info,  Node: Nvidia PTX Functi
*** 28064,28076 ****
  
  These function attributes are supported by the Nvidia PTX back end:
  
! `kernel'
       This attribute indicates that the corresponding function should be
       compiled as a kernel function, which can be invoked from the host
       via the CUDA RT library.  By default functions are only callable
       only from other PTX functions.
  
!      Kernel functions must have `void' return type.
  
  
  File: gcc.info,  Node: PowerPC Function Attributes,  Next: RL78 Function Attributes,  Prev: Nvidia PTX Function Attributes,  Up: Function Attributes
--- 27902,27914 ----
  
  These function attributes are supported by the Nvidia PTX back end:
  
! 'kernel'
       This attribute indicates that the corresponding function should be
       compiled as a kernel function, which can be invoked from the host
       via the CUDA RT library.  By default functions are only callable
       only from other PTX functions.
  
!      Kernel functions must have 'void' return type.
  
  
  File: gcc.info,  Node: PowerPC Function Attributes,  Next: RL78 Function Attributes,  Prev: Nvidia PTX Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: PowerPC Function
*** 28080,28253 ****
  
  These function attributes are supported by the PowerPC back end:
  
! `longcall'
! `shortcall'
!      The `longcall' attribute indicates that the function might be far
       away from the call site and require a different (more expensive)
!      calling sequence.  The `shortcall' attribute indicates that the
!      function is always close enough for the shorter calling sequence
!      to be used.  These attributes override both the `-mlongcall'
!      switch and the `#pragma longcall' setting.
  
       *Note RS/6000 and PowerPC Options::, for more information on
       whether long calls are necessary.
  
! `target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On the PowerPC, the following options are allowed:
  
!     `altivec'
!     `no-altivec'
            Generate code that uses (does not use) AltiVec instructions.
            In 32-bit code, you cannot enable AltiVec instructions unless
!           `-mabi=altivec' is used on the command line.
  
!     `cmpb'
!     `no-cmpb'
            Generate code that uses (does not use) the compare bytes
            instruction implemented on the POWER6 processor and other
            processors that support the PowerPC V2.05 architecture.
  
!     `dlmzb'
!     `no-dlmzb'
            Generate code that uses (does not use) the string-search
!           `dlmzb' instruction on the IBM 405, 440, 464 and 476
            processors.  This instruction is generated by default when
            targeting those processors.
  
!     `fprnd'
!     `no-fprnd'
            Generate code that uses (does not use) the FP round to integer
            instructions implemented on the POWER5+ processor and other
            processors that support the PowerPC V2.03 architecture.
  
!     `hard-dfp'
!     `no-hard-dfp'
            Generate code that uses (does not use) the decimal
            floating-point instructions implemented on some POWER
            processors.
  
!     `isel'
!     `no-isel'
            Generate code that uses (does not use) ISEL instruction.
  
!     `mfcrf'
!     `no-mfcrf'
            Generate code that uses (does not use) the move from condition
!           register field instruction implemented on the POWER4
!           processor and other processors that support the PowerPC V2.01
            architecture.
  
!     `mfpgpr'
!     `no-mfpgpr'
            Generate code that uses (does not use) the FP move to/from
            general purpose register instructions implemented on the
            POWER6X processor and other processors that support the
            extended PowerPC V2.05 architecture.
  
!     `mulhw'
!     `no-mulhw'
            Generate code that uses (does not use) the half-word multiply
            and multiply-accumulate instructions on the IBM 405, 440, 464
            and 476 processors.  These instructions are generated by
            default when targeting those processors.
  
!     `multiple'
!     `no-multiple'
            Generate code that uses (does not use) the load multiple word
            instructions and the store multiple word instructions.
  
!     `update'
!     `no-update'
            Generate code that uses (does not use) the load or store
            instructions that update the base register to the address of
            the calculated memory location.
  
!     `popcntb'
!     `no-popcntb'
            Generate code that uses (does not use) the popcount and
            double-precision FP reciprocal estimate instruction
            implemented on the POWER5 processor and other processors that
            support the PowerPC V2.02 architecture.
  
!     `popcntd'
!     `no-popcntd'
            Generate code that uses (does not use) the popcount
            instruction implemented on the POWER7 processor and other
            processors that support the PowerPC V2.06 architecture.
  
!     `powerpc-gfxopt'
!     `no-powerpc-gfxopt'
            Generate code that uses (does not use) the optional PowerPC
            architecture instructions in the Graphics group, including
            floating-point select.
  
!     `powerpc-gpopt'
!     `no-powerpc-gpopt'
            Generate code that uses (does not use) the optional PowerPC
            architecture instructions in the General Purpose group,
            including floating-point square root.
  
!     `recip-precision'
!     `no-recip-precision'
            Assume (do not assume) that the reciprocal estimate
            instructions provide higher-precision estimates than is
            mandated by the PowerPC ABI.
  
!     `string'
!     `no-string'
            Generate code that uses (does not use) the load string
            instructions and the store string word instructions to save
            multiple registers and do small block moves.
  
!     `vsx'
!     `no-vsx'
            Generate code that uses (does not use) vector/scalar (VSX)
            instructions, and also enable the use of built-in functions
            that allow more direct access to the VSX instruction set.  In
            32-bit code, you cannot enable VSX or AltiVec instructions
!           unless `-mabi=altivec' is used on the command line.
  
!     `friz'
!     `no-friz'
!           Generate (do not generate) the `friz' instruction when the
!           `-funsafe-math-optimizations' option is used to optimize
            rounding a floating-point value to 64-bit integer and back to
!           floating point.  The `friz' instruction does not return the
!           same value if the floating-point number is too large to fit
!           in an integer.
  
!     `avoid-indexed-addresses'
!     `no-avoid-indexed-addresses'
            Generate code that tries to avoid (not avoid) the use of
            indexed load or store instructions.
  
!     `paired'
!     `no-paired'
            Generate code that uses (does not use) the generation of
            PAIRED simd instructions.
  
!     `longcall'
!     `no-longcall'
            Generate code that assumes (does not assume) that all calls
            are far away so that a longer more expensive calling sequence
            is required.
  
!     `cpu=CPU'
            Specify the architecture to generate code for when compiling
!           the function.  If you select the `target("cpu=power7")'
            attribute when generating 32-bit code, VSX and AltiVec
            instructions are not generated unless you use the
!           `-mabi=altivec' option on the command line.
  
!     `tune=TUNE'
            Specify the architecture to tune for when compiling the
!           function.  If you do not specify the `target("tune=TUNE")'
!           attribute and you do specify the `target("cpu=CPU")'
!           attribute, compilation tunes for the CPU architecture, and
!           not the default tuning specified on the command line.
  
       On the PowerPC, the inliner does not inline a function that has
       different target options than the caller, unless the callee has a
--- 27918,28091 ----
  
  These function attributes are supported by the PowerPC back end:
  
! 'longcall'
! 'shortcall'
!      The 'longcall' attribute indicates that the function might be far
       away from the call site and require a different (more expensive)
!      calling sequence.  The 'shortcall' attribute indicates that the
!      function is always close enough for the shorter calling sequence to
!      be used.  These attributes override both the '-mlongcall' switch
!      and the '#pragma longcall' setting.
  
       *Note RS/6000 and PowerPC Options::, for more information on
       whether long calls are necessary.
  
! 'target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On the PowerPC, the following options are allowed:
  
!      'altivec'
!      'no-altivec'
            Generate code that uses (does not use) AltiVec instructions.
            In 32-bit code, you cannot enable AltiVec instructions unless
!           '-mabi=altivec' is used on the command line.
  
!      'cmpb'
!      'no-cmpb'
            Generate code that uses (does not use) the compare bytes
            instruction implemented on the POWER6 processor and other
            processors that support the PowerPC V2.05 architecture.
  
!      'dlmzb'
!      'no-dlmzb'
            Generate code that uses (does not use) the string-search
!           'dlmzb' instruction on the IBM 405, 440, 464 and 476
            processors.  This instruction is generated by default when
            targeting those processors.
  
!      'fprnd'
!      'no-fprnd'
            Generate code that uses (does not use) the FP round to integer
            instructions implemented on the POWER5+ processor and other
            processors that support the PowerPC V2.03 architecture.
  
!      'hard-dfp'
!      'no-hard-dfp'
            Generate code that uses (does not use) the decimal
            floating-point instructions implemented on some POWER
            processors.
  
!      'isel'
!      'no-isel'
            Generate code that uses (does not use) ISEL instruction.
  
!      'mfcrf'
!      'no-mfcrf'
            Generate code that uses (does not use) the move from condition
!           register field instruction implemented on the POWER4 processor
!           and other processors that support the PowerPC V2.01
            architecture.
  
!      'mfpgpr'
!      'no-mfpgpr'
            Generate code that uses (does not use) the FP move to/from
            general purpose register instructions implemented on the
            POWER6X processor and other processors that support the
            extended PowerPC V2.05 architecture.
  
!      'mulhw'
!      'no-mulhw'
            Generate code that uses (does not use) the half-word multiply
            and multiply-accumulate instructions on the IBM 405, 440, 464
            and 476 processors.  These instructions are generated by
            default when targeting those processors.
  
!      'multiple'
!      'no-multiple'
            Generate code that uses (does not use) the load multiple word
            instructions and the store multiple word instructions.
  
!      'update'
!      'no-update'
            Generate code that uses (does not use) the load or store
            instructions that update the base register to the address of
            the calculated memory location.
  
!      'popcntb'
!      'no-popcntb'
            Generate code that uses (does not use) the popcount and
            double-precision FP reciprocal estimate instruction
            implemented on the POWER5 processor and other processors that
            support the PowerPC V2.02 architecture.
  
!      'popcntd'
!      'no-popcntd'
            Generate code that uses (does not use) the popcount
            instruction implemented on the POWER7 processor and other
            processors that support the PowerPC V2.06 architecture.
  
!      'powerpc-gfxopt'
!      'no-powerpc-gfxopt'
            Generate code that uses (does not use) the optional PowerPC
            architecture instructions in the Graphics group, including
            floating-point select.
  
!      'powerpc-gpopt'
!      'no-powerpc-gpopt'
            Generate code that uses (does not use) the optional PowerPC
            architecture instructions in the General Purpose group,
            including floating-point square root.
  
!      'recip-precision'
!      'no-recip-precision'
            Assume (do not assume) that the reciprocal estimate
            instructions provide higher-precision estimates than is
            mandated by the PowerPC ABI.
  
!      'string'
!      'no-string'
            Generate code that uses (does not use) the load string
            instructions and the store string word instructions to save
            multiple registers and do small block moves.
  
!      'vsx'
!      'no-vsx'
            Generate code that uses (does not use) vector/scalar (VSX)
            instructions, and also enable the use of built-in functions
            that allow more direct access to the VSX instruction set.  In
            32-bit code, you cannot enable VSX or AltiVec instructions
!           unless '-mabi=altivec' is used on the command line.
  
!      'friz'
!      'no-friz'
!           Generate (do not generate) the 'friz' instruction when the
!           '-funsafe-math-optimizations' option is used to optimize
            rounding a floating-point value to 64-bit integer and back to
!           floating point.  The 'friz' instruction does not return the
!           same value if the floating-point number is too large to fit in
!           an integer.
  
!      'avoid-indexed-addresses'
!      'no-avoid-indexed-addresses'
            Generate code that tries to avoid (not avoid) the use of
            indexed load or store instructions.
  
!      'paired'
!      'no-paired'
            Generate code that uses (does not use) the generation of
            PAIRED simd instructions.
  
!      'longcall'
!      'no-longcall'
            Generate code that assumes (does not assume) that all calls
            are far away so that a longer more expensive calling sequence
            is required.
  
!      'cpu=CPU'
            Specify the architecture to generate code for when compiling
!           the function.  If you select the 'target("cpu=power7")'
            attribute when generating 32-bit code, VSX and AltiVec
            instructions are not generated unless you use the
!           '-mabi=altivec' option on the command line.
  
!      'tune=TUNE'
            Specify the architecture to tune for when compiling the
!           function.  If you do not specify the 'target("tune=TUNE")'
!           attribute and you do specify the 'target("cpu=CPU")'
!           attribute, compilation tunes for the CPU architecture, and not
!           the default tuning specified on the command line.
  
       On the PowerPC, the inliner does not inline a function that has
       different target options than the caller, unless the callee has a
*************** File: gcc.info,  Node: RL78 Function Att
*** 28261,28285 ****
  
  These function attributes are supported by the RL78 back end:
  
! `interrupt'
! `brk_interrupt'
       These attributes indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
!      Use `brk_interrupt' instead of `interrupt' for handlers intended
!      to be used with the `BRK' opcode (i.e. those that must end with
!      `RETB' instead of `RETI').
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
  
--- 28099,28123 ----
  
  These function attributes are supported by the RL78 back end:
  
! 'interrupt'
! 'brk_interrupt'
       These attributes indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
!      Use 'brk_interrupt' instead of 'interrupt' for handlers intended to
!      be used with the 'BRK' opcode (i.e. those that must end with 'RETB'
!      instead of 'RETI').
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
  
*************** File: gcc.info,  Node: RX Function Attri
*** 28290,28302 ****
  
  These function attributes are supported by the RX back end:
  
! `fast_interrupt'
       Use this attribute on the RX port to indicate that the specified
       function is a fast interrupt handler.  This is just like the
!      `interrupt' attribute, except that `freit' is used to return
!      instead of `reit'.
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 28128,28140 ----
  
  These function attributes are supported by the RX back end:
  
! 'fast_interrupt'
       Use this attribute on the RX port to indicate that the specified
       function is a fast interrupt handler.  This is just like the
!      'interrupt' attribute, except that 'freit' is used to return
!      instead of 'reit'.
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** These function attributes are supported
*** 28305,28313 ****
       On RX targets, you may specify one or more vector numbers as
       arguments to the attribute, as well as naming an alternate table
       name.  Parameters are handled sequentially, so one handler can be
!      assigned to multiple entries in multiple tables.  One may also
!      pass the magic string `"$default"' which causes the function to be
!      used for any unfilled slots in the current table.
  
       This example shows a simple assignment of a function to one vector
       in the default table (note that preprocessor macros may be used for
--- 28143,28151 ----
       On RX targets, you may specify one or more vector numbers as
       arguments to the attribute, as well as naming an alternate table
       name.  Parameters are handled sequentially, so one handler can be
!      assigned to multiple entries in multiple tables.  One may also pass
!      the magic string '"$default"' which causes the function to be used
!      for any unfilled slots in the current table.
  
       This example shows a simple assignment of a function to one vector
       in the default table (note that preprocessor macros may be used for
*************** These function attributes are supported
*** 28316,28340 ****
  
       This example assigns a function to two slots in the default table
       (using preprocessor macros defined elsewhere) and makes it the
!      default for the `dct' table:
            void __attribute__ ((interrupt (RXD1_VECT,RXD2_VECT,"dct","$default")))
            	txd1_handler ();
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! `vector'
!      This RX attribute is similar to the `interrupt' attribute,
       including its parameters, but does not make the function an
!      interrupt-handler type function (i.e. it retains the normal C
!      function calling ABI).  See the `interrupt' attribute for a
       description of its arguments.
  
  
--- 28154,28178 ----
  
       This example assigns a function to two slots in the default table
       (using preprocessor macros defined elsewhere) and makes it the
!      default for the 'dct' table:
            void __attribute__ ((interrupt (RXD1_VECT,RXD2_VECT,"dct","$default")))
            	txd1_handler ();
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
! 'vector'
!      This RX attribute is similar to the 'interrupt' attribute,
       including its parameters, but does not make the function an
!      interrupt-handler type function (i.e.  it retains the normal C
!      function calling ABI). See the 'interrupt' attribute for a
       description of its arguments.
  
  
*************** File: gcc.info,  Node: S/390 Function At
*** 28345,28414 ****
  
  These function attributes are supported on the S/390:
  
! `hotpatch (HALFWORDS-BEFORE-FUNCTION-LABEL,HALFWORDS-AFTER-FUNCTION-LABEL)'
       On S/390 System z targets, you can use this function attribute to
       make GCC generate a "hot-patching" function prologue.  If the
!      `-mhotpatch=' command-line option is used at the same time, the
!      `hotpatch' attribute takes precedence.  The first of the two
       arguments specifies the number of halfwords to be added before the
       function label.  A second argument can be used to specify the
!      number of halfwords to be added after the function label.  For
!      both arguments the maximum allowed value is 1000000.
  
       If both arguments are zero, hotpatching is disabled.
  
! `target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On S/390, the following options are supported:
  
!     `arch='
! 
!     `tune='
! 
!     `stack-guard='
! 
!     `stack-size='
! 
!     `branch-cost='
! 
!     `warn-framesize='
! 
!     `backchain'
!     `no-backchain'
! 
!     `hard-dfp'
!     `no-hard-dfp'
! 
!     `hard-float'
!     `soft-float'
! 
!     `htm'
!     `no-htm'
! 
!     `vx'
!     `no-vx'
! 
!     `packed-stack'
!     `no-packed-stack'
! 
!     `small-exec'
!     `no-small-exec'
! 
!     `mvcle'
!     `no-mvcle'
! 
!     `warn-dynamicstack'
!     `no-warn-dynamicstack'
  
       The options work exactly like the S/390 specific command line
!      options (without the prefix `-m') except that they do not change
       any feature macros.  For example,
  
!           `target("no-vx")'
  
!      does not undefine the `__VEC__' macro.
  
  
  File: gcc.info,  Node: SH Function Attributes,  Next: SPU Function Attributes,  Prev: S/390 Function Attributes,  Up: Function Attributes
--- 28183,28239 ----
  
  These function attributes are supported on the S/390:
  
! 'hotpatch (HALFWORDS-BEFORE-FUNCTION-LABEL,HALFWORDS-AFTER-FUNCTION-LABEL)'
! 
       On S/390 System z targets, you can use this function attribute to
       make GCC generate a "hot-patching" function prologue.  If the
!      '-mhotpatch=' command-line option is used at the same time, the
!      'hotpatch' attribute takes precedence.  The first of the two
       arguments specifies the number of halfwords to be added before the
       function label.  A second argument can be used to specify the
!      number of halfwords to be added after the function label.  For both
!      arguments the maximum allowed value is 1000000.
  
       If both arguments are zero, hotpatching is disabled.
  
! 'target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On S/390, the following options are supported:
  
!      'arch='
!      'tune='
!      'stack-guard='
!      'stack-size='
!      'branch-cost='
!      'warn-framesize='
!      'backchain'
!      'no-backchain'
!      'hard-dfp'
!      'no-hard-dfp'
!      'hard-float'
!      'soft-float'
!      'htm'
!      'no-htm'
!      'vx'
!      'no-vx'
!      'packed-stack'
!      'no-packed-stack'
!      'small-exec'
!      'no-small-exec'
!      'mvcle'
!      'no-mvcle'
!      'warn-dynamicstack'
!      'no-warn-dynamicstack'
  
       The options work exactly like the S/390 specific command line
!      options (without the prefix '-m') except that they do not change
       any feature macros.  For example,
  
!           target("no-vx")
  
!      does not undefine the '__VEC__' macro.
  
  
  File: gcc.info,  Node: SH Function Attributes,  Next: SPU Function Attributes,  Prev: S/390 Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: SH Function Attri
*** 28418,28474 ****
  
  These function attributes are supported on the SH family of processors:
  
! `function_vector'
       On SH2A targets, this attribute declares a function to be called
       using the TBR relative addressing mode.  The argument to this
       attribute is the entry number of the same function in a vector
       table containing all the TBR relative addressable functions.  For
!      correct operation the TBR must be setup accordingly to point to
!      the start of the vector table before any functions with this
!      attribute are invoked.  Usually a good place to do the
!      initialization is the startup routine.  The TBR relative vector
!      table can have at max 256 function entries.  The jumps to these
!      functions are generated using a SH2A specific, non delayed branch
!      instruction JSR/N @(disp8,TBR).  You must use GAS and GLD from GNU
!      binutils version 2.7 or later for this attribute to work correctly.
  
       In an application, for a function being called once, this attribute
       saves at least 8 bytes of code; and if other successive calls are
       being made to the same function, it saves 2 bytes of code per each
       of these calls.
  
! `interrupt_handler'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! `nosave_low_regs'
       Use this attribute on SH targets to indicate that an
!      `interrupt_handler' function should not save and restore registers
       R0..R7.  This can be used on SH3* and SH4* targets that have a
       second R0..R7 register bank for non-reentrant interrupt handlers.
  
! `renesas'
       On SH targets this attribute specifies that the function or struct
       follows the Renesas ABI.
  
! `resbank'
       On the SH2A target, this attribute enables the high-speed register
       saving and restoration using a register bank for
!      `interrupt_handler' routines.  Saving to the bank is performed
       automatically after the CPU accepts an interrupt that uses a
       register bank.
  
       The nineteen 32-bit registers comprising general register R0 to
       R14, control register GBR, and system registers MACH, MACL, and PR
!      and the vector table address offset are saved into a register
!      bank.  Register banks are stacked in first-in last-out (FILO)
!      sequence.  Restoration from the bank is executed by issuing a
!      RESBANK instruction.
  
! `sp_switch'
!      Use this attribute on the SH to indicate an `interrupt_handler'
       function should switch to an alternate stack.  It expects a string
       argument that names a global variable holding the address of the
       alternate stack.
--- 28243,28299 ----
  
  These function attributes are supported on the SH family of processors:
  
! 'function_vector'
       On SH2A targets, this attribute declares a function to be called
       using the TBR relative addressing mode.  The argument to this
       attribute is the entry number of the same function in a vector
       table containing all the TBR relative addressable functions.  For
!      correct operation the TBR must be setup accordingly to point to the
!      start of the vector table before any functions with this attribute
!      are invoked.  Usually a good place to do the initialization is the
!      startup routine.  The TBR relative vector table can have at max 256
!      function entries.  The jumps to these functions are generated using
!      a SH2A specific, non delayed branch instruction JSR/N @(disp8,TBR).
!      You must use GAS and GLD from GNU binutils version 2.7 or later for
!      this attribute to work correctly.
  
       In an application, for a function being called once, this attribute
       saves at least 8 bytes of code; and if other successive calls are
       being made to the same function, it saves 2 bytes of code per each
       of these calls.
  
! 'interrupt_handler'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
       attribute is present.
  
! 'nosave_low_regs'
       Use this attribute on SH targets to indicate that an
!      'interrupt_handler' function should not save and restore registers
       R0..R7.  This can be used on SH3* and SH4* targets that have a
       second R0..R7 register bank for non-reentrant interrupt handlers.
  
! 'renesas'
       On SH targets this attribute specifies that the function or struct
       follows the Renesas ABI.
  
! 'resbank'
       On the SH2A target, this attribute enables the high-speed register
       saving and restoration using a register bank for
!      'interrupt_handler' routines.  Saving to the bank is performed
       automatically after the CPU accepts an interrupt that uses a
       register bank.
  
       The nineteen 32-bit registers comprising general register R0 to
       R14, control register GBR, and system registers MACH, MACL, and PR
!      and the vector table address offset are saved into a register bank.
!      Register banks are stacked in first-in last-out (FILO) sequence.
!      Restoration from the bank is executed by issuing a RESBANK
!      instruction.
  
! 'sp_switch'
!      Use this attribute on the SH to indicate an 'interrupt_handler'
       function should switch to an alternate stack.  It expects a string
       argument that names a global variable holding the address of the
       alternate stack.
*************** These function attributes are supported
*** 28477,28490 ****
            void f () __attribute__ ((interrupt_handler,
                                      sp_switch ("alt_stack")));
  
! `trap_exit'
!      Use this attribute on the SH for an `interrupt_handler' to return
!      using `trapa' instead of `rte'.  This attribute expects an integer
       argument specifying the trap number to be used.
  
! `trapa_handler'
       On SH targets this function attribute is similar to
!      `interrupt_handler' but it does not save and restore all registers.
  
  
  File: gcc.info,  Node: SPU Function Attributes,  Next: Symbian OS Function Attributes,  Prev: SH Function Attributes,  Up: Function Attributes
--- 28302,28315 ----
            void f () __attribute__ ((interrupt_handler,
                                      sp_switch ("alt_stack")));
  
! 'trap_exit'
!      Use this attribute on the SH for an 'interrupt_handler' to return
!      using 'trapa' instead of 'rte'.  This attribute expects an integer
       argument specifying the trap number to be used.
  
! 'trapa_handler'
       On SH targets this function attribute is similar to
!      'interrupt_handler' but it does not save and restore all registers.
  
  
  File: gcc.info,  Node: SPU Function Attributes,  Next: Symbian OS Function Attributes,  Prev: SH Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: SPU Function Attr
*** 28494,28507 ****
  
  These function attributes are supported by the SPU back end:
  
! `naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to
!      be assembly code. The specified function will not have
!      prologue/epilogue sequences generated by the compiler. Only basic
!      `asm' statements can safely be included in naked functions (*note
!      Basic Asm::). While using extended `asm' or a mixture of basic
!      `asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
  
--- 28319,28332 ----
  
  These function attributes are supported by the SPU back end:
  
! 'naked'
       This attribute allows the compiler to construct the requisite
!      function declaration, while allowing the body of the function to be
!      assembly code.  The specified function will not have
!      prologue/epilogue sequences generated by the compiler.  Only basic
!      'asm' statements can safely be included in naked functions (*note
!      Basic Asm::).  While using extended 'asm' or a mixture of basic
!      'asm' and C code may appear to work, they cannot be depended upon
       to work reliably and are not supported.
  
  
*************** File: gcc.info,  Node: Symbian OS Functi
*** 28511,28517 ****
  --------------------------------------
  
  *Note Microsoft Windows Function Attributes::, for discussion of the
! `dllexport' and `dllimport' attributes.
  
  
  File: gcc.info,  Node: V850 Function Attributes,  Next: Visium Function Attributes,  Prev: Symbian OS Function Attributes,  Up: Function Attributes
--- 28336,28342 ----
  --------------------------------------
  
  *Note Microsoft Windows Function Attributes::, for discussion of the
! 'dllexport' and 'dllimport' attributes.
  
  
  File: gcc.info,  Node: V850 Function Attributes,  Next: Visium Function Attributes,  Prev: Symbian OS Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: V850 Function Att
*** 28521,28528 ****
  
  The V850 back end supports these function attributes:
  
! `interrupt'
! `interrupt_handler'
       Use these attributes to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when either
--- 28346,28353 ----
  
  The V850 back end supports these function attributes:
  
! 'interrupt'
! 'interrupt_handler'
       Use these attributes to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when either
*************** File: gcc.info,  Node: Visium Function A
*** 28536,28542 ****
  
  These function attributes are supported by the Visium back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 28361,28367 ----
  
  These function attributes are supported by the Visium back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** File: gcc.info,  Node: x86 Function Attr
*** 28550,28593 ****
  
  These function attributes are supported by the x86 back end:
  
! `cdecl'
!      On the x86-32 targets, the `cdecl' attribute causes the compiler to
       assume that the calling function pops off the stack space used to
       pass arguments.  This is useful to override the effects of the
!      `-mrtd' switch.
  
! `fastcall'
!      On x86-32 targets, the `fastcall' attribute causes the compiler to
       pass the first argument (if of integral type) in the register ECX
       and the second argument (if of integral type) in the register EDX.
       Subsequent and other typed arguments are passed on the stack.  The
!      called function pops the arguments off the stack.  If the number
!      of arguments is variable all arguments are pushed on the stack.
  
! `thiscall'
!      On x86-32 targets, the `thiscall' attribute causes the compiler to
       pass the first argument (if of integral type) in the register ECX.
!      Subsequent and other typed arguments are passed on the stack. The
!      called function pops the arguments off the stack.  If the number
!      of arguments is variable all arguments are pushed on the stack.
!      The `thiscall' attribute is intended for C++ non-static member
!      functions.  As a GCC extension, this calling convention can be
!      used for C functions and for static member methods.
  
- `ms_abi'
- `sysv_abi'
       On 32-bit and 64-bit x86 targets, you can use an ABI attribute to
       indicate which calling convention should be used for a function.
!      The `ms_abi' attribute tells the compiler to use the Microsoft ABI,
!      while the `sysv_abi' attribute tells the compiler to use the ABI
       used on GNU/Linux and other systems.  The default is to use the
       Microsoft ABI when targeting Windows.  On all other systems, the
       default is the x86/AMD ABI.
  
!      Note, the `ms_abi' attribute for Microsoft Windows 64-bit targets
!      currently requires the `-maccumulate-outgoing-args' option.
  
- `callee_pop_aggregate_return (NUMBER)'
       On x86-32 targets, you can use this attribute to control how
       aggregates are returned in memory.  If the caller is responsible
       for popping the hidden pointer together with the rest of the
--- 28375,28420 ----
  
  These function attributes are supported by the x86 back end:
  
! 'cdecl'
!      On the x86-32 targets, the 'cdecl' attribute causes the compiler to
       assume that the calling function pops off the stack space used to
       pass arguments.  This is useful to override the effects of the
!      '-mrtd' switch.
  
! 'fastcall'
!      On x86-32 targets, the 'fastcall' attribute causes the compiler to
       pass the first argument (if of integral type) in the register ECX
       and the second argument (if of integral type) in the register EDX.
       Subsequent and other typed arguments are passed on the stack.  The
!      called function pops the arguments off the stack.  If the number of
!      arguments is variable all arguments are pushed on the stack.
  
! 'thiscall'
!      On x86-32 targets, the 'thiscall' attribute causes the compiler to
       pass the first argument (if of integral type) in the register ECX.
!      Subsequent and other typed arguments are passed on the stack.  The
!      called function pops the arguments off the stack.  If the number of
!      arguments is variable all arguments are pushed on the stack.  The
!      'thiscall' attribute is intended for C++ non-static member
!      functions.  As a GCC extension, this calling convention can be used
!      for C functions and for static member methods.
! 
! 'ms_abi'
! 'sysv_abi'
  
       On 32-bit and 64-bit x86 targets, you can use an ABI attribute to
       indicate which calling convention should be used for a function.
!      The 'ms_abi' attribute tells the compiler to use the Microsoft ABI,
!      while the 'sysv_abi' attribute tells the compiler to use the ABI
       used on GNU/Linux and other systems.  The default is to use the
       Microsoft ABI when targeting Windows.  On all other systems, the
       default is the x86/AMD ABI.
  
!      Note, the 'ms_abi' attribute for Microsoft Windows 64-bit targets
!      currently requires the '-maccumulate-outgoing-args' option.
! 
! 'callee_pop_aggregate_return (NUMBER)'
  
       On x86-32 targets, you can use this attribute to control how
       aggregates are returned in memory.  If the caller is responsible
       for popping the hidden pointer together with the rest of the
*************** These function attributes are supported
*** 28598,28779 ****
       hidden pointer.  However, on x86-32 Microsoft Windows targets, the
       compiler assumes that the caller pops the stack for hidden pointer.
  
! `ms_hook_prologue'
       On 32-bit and 64-bit x86 targets, you can use this function
!      attribute to make GCC generate the "hot-patching" function
!      prologue used in Win32 API functions in Microsoft Windows XP
!      Service Pack 2 and newer.
  
! `regparm (NUMBER)'
!      On x86-32 targets, the `regparm' attribute causes the compiler to
!      pass arguments number one to NUMBER if they are of integral type
!      in registers EAX, EDX, and ECX instead of on the stack.  Functions
       that take a variable number of arguments continue to be passed all
       of their arguments on the stack.
  
       Beware that on some ELF systems this attribute is unsuitable for
       global functions in shared libraries with lazy binding (which is
!      the default).  Lazy binding sends the first call via resolving
!      code in the loader, which might assume EAX, EDX and ECX can be
       clobbered, as per the standard calling conventions.  Solaris 8 is
       affected by this.  Systems with the GNU C Library version 2.1 or
       higher and FreeBSD are believed to be safe since the loaders there
!      save EAX, EDX and ECX.  (Lazy binding can be disabled with the
       linker or the loader if desired, to avoid the problem.)
  
! `sseregparm'
!      On x86-32 targets with SSE support, the `sseregparm' attribute
!      causes the compiler to pass up to 3 floating-point arguments in
!      SSE registers instead of on the stack.  Functions that take a
!      variable number of arguments continue to pass all of their
!      floating-point arguments on the stack.
  
! `force_align_arg_pointer'
!      On x86 targets, the `force_align_arg_pointer' attribute may be
       applied to individual function definitions, generating an alternate
       prologue and epilogue that realigns the run-time stack if
       necessary.  This supports mixing legacy codes that run with a
       4-byte aligned stack with modern codes that keep a 16-byte stack
       for SSE compatibility.
  
! `stdcall'
!      On x86-32 targets, the `stdcall' attribute causes the compiler to
       assume that the called function pops off the stack space used to
       pass arguments, unless it takes a variable number of arguments.
  
! `target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On the x86, the following options are allowed:
!     `abm'
!     `no-abm'
            Enable/disable the generation of the advanced bit
            instructions.
  
!     `aes'
!     `no-aes'
            Enable/disable the generation of the AES instructions.
  
!     `default'
            *Note Function Multiversioning::, where it is used to specify
            the default function version.
  
!     `mmx'
!     `no-mmx'
            Enable/disable the generation of the MMX instructions.
  
!     `pclmul'
!     `no-pclmul'
            Enable/disable the generation of the PCLMUL instructions.
  
!     `popcnt'
!     `no-popcnt'
            Enable/disable the generation of the POPCNT instruction.
  
!     `sse'
!     `no-sse'
            Enable/disable the generation of the SSE instructions.
  
!     `sse2'
!     `no-sse2'
            Enable/disable the generation of the SSE2 instructions.
  
!     `sse3'
!     `no-sse3'
            Enable/disable the generation of the SSE3 instructions.
  
!     `sse4'
!     `no-sse4'
            Enable/disable the generation of the SSE4 instructions (both
            SSE4.1 and SSE4.2).
  
!     `sse4.1'
!     `no-sse4.1'
            Enable/disable the generation of the sse4.1 instructions.
  
!     `sse4.2'
!     `no-sse4.2'
            Enable/disable the generation of the sse4.2 instructions.
  
!     `sse4a'
!     `no-sse4a'
            Enable/disable the generation of the SSE4A instructions.
  
!     `fma4'
!     `no-fma4'
            Enable/disable the generation of the FMA4 instructions.
  
!     `xop'
!     `no-xop'
            Enable/disable the generation of the XOP instructions.
  
!     `lwp'
!     `no-lwp'
            Enable/disable the generation of the LWP instructions.
  
!     `ssse3'
!     `no-ssse3'
            Enable/disable the generation of the SSSE3 instructions.
  
!     `cld'
!     `no-cld'
            Enable/disable the generation of the CLD before string moves.
  
!     `fancy-math-387'
!     `no-fancy-math-387'
!           Enable/disable the generation of the `sin', `cos', and `sqrt'
            instructions on the 387 floating-point unit.
  
!     `fused-madd'
!     `no-fused-madd'
            Enable/disable the generation of the fused multiply/add
            instructions.
  
!     `ieee-fp'
!     `no-ieee-fp'
            Enable/disable the generation of floating point that depends
            on IEEE arithmetic.
  
!     `inline-all-stringops'
!     `no-inline-all-stringops'
            Enable/disable inlining of string operations.
  
!     `inline-stringops-dynamically'
!     `no-inline-stringops-dynamically'
            Enable/disable the generation of the inline code to do small
            string operations and calling the library routines for large
            operations.
  
!     `align-stringops'
!     `no-align-stringops'
            Do/do not align destination of inlined string operations.
  
!     `recip'
!     `no-recip'
            Enable/disable the generation of RCPSS, RCPPS, RSQRTSS and
            RSQRTPS instructions followed an additional Newton-Raphson
            step instead of doing a floating-point division.
  
!     `arch=ARCH'
!           Specify the architecture to generate code for in compiling
!           the function.
  
!     `tune=TUNE'
            Specify the architecture to tune for in compiling the
            function.
  
!     `fpmath=FPMATH'
            Specify which floating-point unit to use.  You must specify
!           the `target("fpmath=sse,387")' option as
!           `target("fpmath=sse+387")' because the comma would separate
            different options.
  
       On the x86, the inliner does not inline a function that has
       different target options than the caller, unless the callee has a
!      subset of the target options of the caller.  For example a
!      function declared with `target("sse3")' can inline a function with
!      `target("sse2")', since `-msse3' implies `-msse2'.
  
  
  File: gcc.info,  Node: Xstormy16 Function Attributes,  Prev: x86 Function Attributes,  Up: Function Attributes
--- 28425,28626 ----
       hidden pointer.  However, on x86-32 Microsoft Windows targets, the
       compiler assumes that the caller pops the stack for hidden pointer.
  
! 'ms_hook_prologue'
! 
       On 32-bit and 64-bit x86 targets, you can use this function
!      attribute to make GCC generate the "hot-patching" function prologue
!      used in Win32 API functions in Microsoft Windows XP Service Pack 2
!      and newer.
  
! 'regparm (NUMBER)'
!      On x86-32 targets, the 'regparm' attribute causes the compiler to
!      pass arguments number one to NUMBER if they are of integral type in
!      registers EAX, EDX, and ECX instead of on the stack.  Functions
       that take a variable number of arguments continue to be passed all
       of their arguments on the stack.
  
       Beware that on some ELF systems this attribute is unsuitable for
       global functions in shared libraries with lazy binding (which is
!      the default).  Lazy binding sends the first call via resolving code
!      in the loader, which might assume EAX, EDX and ECX can be
       clobbered, as per the standard calling conventions.  Solaris 8 is
       affected by this.  Systems with the GNU C Library version 2.1 or
       higher and FreeBSD are believed to be safe since the loaders there
!      save EAX, EDX and ECX. (Lazy binding can be disabled with the
       linker or the loader if desired, to avoid the problem.)
  
! 'sseregparm'
!      On x86-32 targets with SSE support, the 'sseregparm' attribute
!      causes the compiler to pass up to 3 floating-point arguments in SSE
!      registers instead of on the stack.  Functions that take a variable
!      number of arguments continue to pass all of their floating-point
!      arguments on the stack.
  
! 'force_align_arg_pointer'
!      On x86 targets, the 'force_align_arg_pointer' attribute may be
       applied to individual function definitions, generating an alternate
       prologue and epilogue that realigns the run-time stack if
       necessary.  This supports mixing legacy codes that run with a
       4-byte aligned stack with modern codes that keep a 16-byte stack
       for SSE compatibility.
  
! 'stdcall'
!      On x86-32 targets, the 'stdcall' attribute causes the compiler to
       assume that the called function pops off the stack space used to
       pass arguments, unless it takes a variable number of arguments.
  
! 'target (OPTIONS)'
       As discussed in *note Common Function Attributes::, this attribute
       allows specification of target-specific compilation options.
  
       On the x86, the following options are allowed:
!      'abm'
!      'no-abm'
            Enable/disable the generation of the advanced bit
            instructions.
  
!      'aes'
!      'no-aes'
            Enable/disable the generation of the AES instructions.
  
!      'default'
            *Note Function Multiversioning::, where it is used to specify
            the default function version.
  
!      'mmx'
!      'no-mmx'
            Enable/disable the generation of the MMX instructions.
  
!      'pclmul'
!      'no-pclmul'
            Enable/disable the generation of the PCLMUL instructions.
  
!      'popcnt'
!      'no-popcnt'
            Enable/disable the generation of the POPCNT instruction.
  
!      'sse'
!      'no-sse'
            Enable/disable the generation of the SSE instructions.
  
!      'sse2'
!      'no-sse2'
            Enable/disable the generation of the SSE2 instructions.
  
!      'sse3'
!      'no-sse3'
            Enable/disable the generation of the SSE3 instructions.
  
!      'sse4'
!      'no-sse4'
            Enable/disable the generation of the SSE4 instructions (both
            SSE4.1 and SSE4.2).
  
!      'sse4.1'
!      'no-sse4.1'
            Enable/disable the generation of the sse4.1 instructions.
  
!      'sse4.2'
!      'no-sse4.2'
            Enable/disable the generation of the sse4.2 instructions.
  
!      'sse4a'
!      'no-sse4a'
            Enable/disable the generation of the SSE4A instructions.
  
!      'fma4'
!      'no-fma4'
            Enable/disable the generation of the FMA4 instructions.
  
!      'xop'
!      'no-xop'
            Enable/disable the generation of the XOP instructions.
  
!      'lwp'
!      'no-lwp'
            Enable/disable the generation of the LWP instructions.
  
!      'ssse3'
!      'no-ssse3'
            Enable/disable the generation of the SSSE3 instructions.
  
!      'cld'
!      'no-cld'
            Enable/disable the generation of the CLD before string moves.
  
!      'fancy-math-387'
!      'no-fancy-math-387'
!           Enable/disable the generation of the 'sin', 'cos', and 'sqrt'
            instructions on the 387 floating-point unit.
  
!      'fused-madd'
!      'no-fused-madd'
            Enable/disable the generation of the fused multiply/add
            instructions.
  
!      'ieee-fp'
!      'no-ieee-fp'
            Enable/disable the generation of floating point that depends
            on IEEE arithmetic.
  
!      'inline-all-stringops'
!      'no-inline-all-stringops'
            Enable/disable inlining of string operations.
  
!      'inline-stringops-dynamically'
!      'no-inline-stringops-dynamically'
            Enable/disable the generation of the inline code to do small
            string operations and calling the library routines for large
            operations.
  
!      'align-stringops'
!      'no-align-stringops'
            Do/do not align destination of inlined string operations.
  
!      'recip'
!      'no-recip'
            Enable/disable the generation of RCPSS, RCPPS, RSQRTSS and
            RSQRTPS instructions followed an additional Newton-Raphson
            step instead of doing a floating-point division.
  
!      'arch=ARCH'
!           Specify the architecture to generate code for in compiling the
!           function.
  
!      'tune=TUNE'
            Specify the architecture to tune for in compiling the
            function.
  
!      'fpmath=FPMATH'
            Specify which floating-point unit to use.  You must specify
!           the 'target("fpmath=sse,387")' option as
!           'target("fpmath=sse+387")' because the comma would separate
            different options.
  
+      'indirect_branch("CHOICE")'
+           On x86 targets, the 'indirect_branch' attribute causes the
+           compiler to convert indirect call and jump with CHOICE.
+           'keep' keeps indirect call and jump unmodified.  'thunk'
+           converts indirect call and jump to call and return thunk.
+           'thunk-inline' converts indirect call and jump to inlined call
+           and return thunk.  'thunk-extern' converts indirect call and
+           jump to external call and return thunk provided in a separate
+           object file.
+ 
+      'function_return("CHOICE")'
+           On x86 targets, the 'function_return' attribute causes the
+           compiler to convert function return with CHOICE.  'keep' keeps
+           function return unmodified.  'thunk' converts function return
+           to call and return thunk.  'thunk-inline' converts function
+           return to inlined call and return thunk.  'thunk-extern'
+           converts function return to external call and return thunk
+           provided in a separate object file.
+ 
       On the x86, the inliner does not inline a function that has
       different target options than the caller, unless the callee has a
!      subset of the target options of the caller.  For example a function
!      declared with 'target("sse3")' can inline a function with
!      'target("sse2")', since '-msse3' implies '-msse2'.
  
  
  File: gcc.info,  Node: Xstormy16 Function Attributes,  Prev: x86 Function Attributes,  Up: Function Attributes
*************** File: gcc.info,  Node: Xstormy16 Functio
*** 28783,28789 ****
  
  These function attributes are supported by the Xstormy16 back end:
  
! `interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
--- 28630,28636 ----
  
  These function attributes are supported by the Xstormy16 back end:
  
! 'interrupt'
       Use this attribute to indicate that the specified function is an
       interrupt handler.  The compiler generates function entry and exit
       sequences suitable for use in an interrupt handler when this
*************** File: gcc.info,  Node: Variable Attribut
*** 28795,28810 ****
  6.32 Specifying Attributes of Variables
  =======================================
  
! The keyword `__attribute__' allows you to specify special attributes of
! variables or structure fields.  This keyword is followed by an
! attribute specification inside double parentheses.  Some attributes are
! currently defined generically for variables.  Other attributes are
! defined for variables on particular target systems.  Other attributes
! are available for functions (*note Function Attributes::), labels
! (*note Label Attributes::), enumerators (*note Enumerator
! Attributes::), and for types (*note Type Attributes::).  Other front
! ends might define more attributes (*note Extensions to the C++
! Language: C++ Extensions.).
  
   *Note Attribute Syntax::, for details of the exact syntax for using
  attributes.
--- 28642,28656 ----
  6.32 Specifying Attributes of Variables
  =======================================
  
! The keyword '__attribute__' allows you to specify special attributes of
! variables or structure fields.  This keyword is followed by an attribute
! specification inside double parentheses.  Some attributes are currently
! defined generically for variables.  Other attributes are defined for
! variables on particular target systems.  Other attributes are available
! for functions (*note Function Attributes::), labels (*note Label
! Attributes::), enumerators (*note Enumerator Attributes::), and for
! types (*note Type Attributes::).  Other front ends might define more
! attributes (*note Extensions to the C++ Language: C++ Extensions.).
  
   *Note Attribute Syntax::, for details of the exact syntax for using
  attributes.
*************** File: gcc.info,  Node: Common Variable A
*** 28835,28858 ****
  
  The following attributes are supported on most targets.
  
! `aligned (ALIGNMENT)'
       This attribute specifies a minimum alignment for the variable or
       structure field, measured in bytes.  For example, the declaration:
  
            int x __attribute__ ((aligned (16))) = 0;
  
!      causes the compiler to allocate the global variable `x' on a
       16-byte boundary.  On a 68040, this could be used in conjunction
!      with an `asm' expression to access the `move16' instruction which
       requires 16-byte aligned operands.
  
       You can also specify the alignment of structure fields.  For
!      example, to create a double-word aligned `int' pair, you could
       write:
  
            struct foo { int x[2] __attribute__ ((aligned (8))); };
  
!      This is an alternative to creating a union with a `double' member,
       which forces the union to be double-word aligned.
  
       As in the preceding examples, you can explicitly specify the
--- 28681,28704 ----
  
  The following attributes are supported on most targets.
  
! 'aligned (ALIGNMENT)'
       This attribute specifies a minimum alignment for the variable or
       structure field, measured in bytes.  For example, the declaration:
  
            int x __attribute__ ((aligned (16))) = 0;
  
!      causes the compiler to allocate the global variable 'x' on a
       16-byte boundary.  On a 68040, this could be used in conjunction
!      with an 'asm' expression to access the 'move16' instruction which
       requires 16-byte aligned operands.
  
       You can also specify the alignment of structure fields.  For
!      example, to create a double-word aligned 'int' pair, you could
       write:
  
            struct foo { int x[2] __attribute__ ((aligned (8))); };
  
!      This is an alternative to creating a union with a 'double' member,
       which forces the union to be double-word aligned.
  
       As in the preceding examples, you can explicitly specify the
*************** The following attributes are supported o
*** 28865,28871 ****
       supports vector operations.  The default alignment is fixed for a
       particular target ABI.
  
!      GCC also provides a target specific macro `__BIGGEST_ALIGNMENT__',
       which is the largest alignment ever used for any data type on the
       target machine you are compiling for.  For example, you could
       write:
--- 28711,28717 ----
       supports vector operations.  The default alignment is fixed for a
       particular target ABI.
  
!      GCC also provides a target specific macro '__BIGGEST_ALIGNMENT__',
       which is the largest alignment ever used for any data type on the
       target machine you are compiling for.  For example, you could
       write:
*************** The following attributes are supported o
*** 28873,28932 ****
            short array[3] __attribute__ ((aligned (__BIGGEST_ALIGNMENT__)));
  
       The compiler automatically sets the alignment for the declared
!      variable or field to `__BIGGEST_ALIGNMENT__'.  Doing this can
!      often make copy operations more efficient, because the compiler can
!      use whatever instructions copy the biggest chunks of memory when
       performing copies to or from the variables or fields that you have
!      aligned this way.  Note that the value of `__BIGGEST_ALIGNMENT__'
       may change depending on command-line options.
  
!      When used on a struct, or struct member, the `aligned' attribute
       can only increase the alignment; in order to decrease it, the
!      `packed' attribute must be specified as well.  When used as part
!      of a typedef, the `aligned' attribute can both increase and
!      decrease alignment, and specifying the `packed' attribute
!      generates a warning.
  
!      Note that the effectiveness of `aligned' attributes may be limited
       by inherent limitations in your linker.  On many systems, the
       linker is only able to arrange for variables to be aligned up to a
       certain maximum alignment.  (For some linkers, the maximum
       supported alignment may be very very small.)  If your linker is
       only able to align variables up to a maximum of 8-byte alignment,
!      then specifying `aligned(16)' in an `__attribute__' still only
       provides you with 8-byte alignment.  See your linker documentation
       for further information.
  
!      The `aligned' attribute can also be used for functions (*note
       Common Function Attributes::.)
  
! `cleanup (CLEANUP_FUNCTION)'
!      The `cleanup' attribute runs a function when the variable goes out
       of scope.  This attribute can only be applied to auto function
       scope variables; it may not be applied to parameters or variables
       with static storage duration.  The function must take one
       parameter, a pointer to a type compatible with the variable.  The
       return value of the function (if any) is ignored.
  
!      If `-fexceptions' is enabled, then CLEANUP_FUNCTION is run during
       the stack unwinding that happens during the processing of the
!      exception.  Note that the `cleanup' attribute does not allow the
!      exception to be caught, only to perform an action.  It is
!      undefined what happens if CLEANUP_FUNCTION does not return
!      normally.
  
! `common'
! `nocommon'
!      The `common' attribute requests GCC to place a variable in
!      "common" storage.  The `nocommon' attribute requests the
!      opposite--to allocate space for it directly.
  
!      These attributes override the default chosen by the `-fno-common'
!      and `-fcommon' flags respectively.
  
! `deprecated'
! `deprecated (MSG)'
!      The `deprecated' attribute results in a warning if the variable is
       used anywhere in the source file.  This is useful when identifying
       variables that are expected to be removed in a future version of a
       program.  The warning also includes the location of the declaration
--- 28719,28777 ----
            short array[3] __attribute__ ((aligned (__BIGGEST_ALIGNMENT__)));
  
       The compiler automatically sets the alignment for the declared
!      variable or field to '__BIGGEST_ALIGNMENT__'.  Doing this can often
!      make copy operations more efficient, because the compiler can use
!      whatever instructions copy the biggest chunks of memory when
       performing copies to or from the variables or fields that you have
!      aligned this way.  Note that the value of '__BIGGEST_ALIGNMENT__'
       may change depending on command-line options.
  
!      When used on a struct, or struct member, the 'aligned' attribute
       can only increase the alignment; in order to decrease it, the
!      'packed' attribute must be specified as well.  When used as part of
!      a typedef, the 'aligned' attribute can both increase and decrease
!      alignment, and specifying the 'packed' attribute generates a
!      warning.
  
!      Note that the effectiveness of 'aligned' attributes may be limited
       by inherent limitations in your linker.  On many systems, the
       linker is only able to arrange for variables to be aligned up to a
       certain maximum alignment.  (For some linkers, the maximum
       supported alignment may be very very small.)  If your linker is
       only able to align variables up to a maximum of 8-byte alignment,
!      then specifying 'aligned(16)' in an '__attribute__' still only
       provides you with 8-byte alignment.  See your linker documentation
       for further information.
  
!      The 'aligned' attribute can also be used for functions (*note
       Common Function Attributes::.)
  
! 'cleanup (CLEANUP_FUNCTION)'
!      The 'cleanup' attribute runs a function when the variable goes out
       of scope.  This attribute can only be applied to auto function
       scope variables; it may not be applied to parameters or variables
       with static storage duration.  The function must take one
       parameter, a pointer to a type compatible with the variable.  The
       return value of the function (if any) is ignored.
  
!      If '-fexceptions' is enabled, then CLEANUP_FUNCTION is run during
       the stack unwinding that happens during the processing of the
!      exception.  Note that the 'cleanup' attribute does not allow the
!      exception to be caught, only to perform an action.  It is undefined
!      what happens if CLEANUP_FUNCTION does not return normally.
  
! 'common'
! 'nocommon'
!      The 'common' attribute requests GCC to place a variable in "common"
!      storage.  The 'nocommon' attribute requests the opposite--to
!      allocate space for it directly.
  
!      These attributes override the default chosen by the '-fno-common'
!      and '-fcommon' flags respectively.
  
! 'deprecated'
! 'deprecated (MSG)'
!      The 'deprecated' attribute results in a warning if the variable is
       used anywhere in the source file.  This is useful when identifying
       variables that are expected to be removed in a future version of a
       program.  The warning also includes the location of the declaration
*************** The following attributes are supported o
*** 28942,28970 ****
       argument, which must be a string, is printed in the warning if
       present.
  
!      The `deprecated' attribute can also be used for functions and
!      types (*note Common Function Attributes::, *note Common Type
       Attributes::).
  
! `mode (MODE)'
       This attribute specifies the data type for the
       declaration--whichever type corresponds to the mode MODE.  This in
!      effect lets you request an integer or floating-point type
!      according to its width.
  
!      You may also specify a mode of `byte' or `__byte__' to indicate
!      the mode corresponding to a one-byte integer, `word' or `__word__'
!      for the mode of a one-word integer, and `pointer' or `__pointer__'
!      for the mode used to represent pointers.
  
! `packed'
!      The `packed' attribute specifies that a variable or structure field
       should have the smallest possible alignment--one byte for a
       variable, and one bit for a field, unless you specify a larger
!      value with the `aligned' attribute.
  
!      Here is a structure in which the field `x' is packed, so that it
!      immediately follows `a':
  
            struct foo
            {
--- 28787,28815 ----
       argument, which must be a string, is printed in the warning if
       present.
  
!      The 'deprecated' attribute can also be used for functions and types
!      (*note Common Function Attributes::, *note Common Type
       Attributes::).
  
! 'mode (MODE)'
       This attribute specifies the data type for the
       declaration--whichever type corresponds to the mode MODE.  This in
!      effect lets you request an integer or floating-point type according
!      to its width.
  
!      You may also specify a mode of 'byte' or '__byte__' to indicate the
!      mode corresponding to a one-byte integer, 'word' or '__word__' for
!      the mode of a one-word integer, and 'pointer' or '__pointer__' for
!      the mode used to represent pointers.
  
! 'packed'
!      The 'packed' attribute specifies that a variable or structure field
       should have the smallest possible alignment--one byte for a
       variable, and one bit for a field, unless you specify a larger
!      value with the 'aligned' attribute.
  
!      Here is a structure in which the field 'x' is packed, so that it
!      immediately follows 'a':
  
            struct foo
            {
*************** The following attributes are supported o
*** 28972,28989 ****
              int x[2] __attribute__ ((packed));
            };
  
!      _Note:_ The 4.1, 4.2 and 4.3 series of GCC ignore the `packed'
!      attribute on bit-fields of type `char'.  This has been fixed in
!      GCC 4.4 but the change can lead to differences in the structure
!      layout.  See the documentation of `-Wpacked-bitfield-compat' for
!      more information.
  
! `section ("SECTION-NAME")'
       Normally, the compiler places the objects it generates in sections
!      like `data' and `bss'.  Sometimes, however, you need additional
       sections, or you need certain particular variables to appear in
       special sections, for example to map to special hardware.  The
!      `section' attribute specifies that a variable (or function) lives
       in a particular section.  For example, this small program uses
       several specific section names:
  
--- 28817,28834 ----
              int x[2] __attribute__ ((packed));
            };
  
!      _Note:_ The 4.1, 4.2 and 4.3 series of GCC ignore the 'packed'
!      attribute on bit-fields of type 'char'.  This has been fixed in GCC
!      4.4 but the change can lead to differences in the structure layout.
!      See the documentation of '-Wpacked-bitfield-compat' for more
!      information.
  
! 'section ("SECTION-NAME")'
       Normally, the compiler places the objects it generates in sections
!      like 'data' and 'bss'.  Sometimes, however, you need additional
       sections, or you need certain particular variables to appear in
       special sections, for example to map to special hardware.  The
!      'section' attribute specifies that a variable (or function) lives
       in a particular section.  For example, this small program uses
       several specific section names:
  
*************** The following attributes are supported o
*** 29005,29043 ****
              init_duart (&b);
            }
  
!      Use the `section' attribute with _global_ variables and not
!      _local_ variables, as shown in the example.
  
!      You may use the `section' attribute with initialized or
       uninitialized global variables but the linker requires each object
       be defined once, with the exception that uninitialized variables
!      tentatively go in the `common' (or `bss') section and can be
!      multiply "defined".  Using the `section' attribute changes what
!      section the variable goes into and may cause the linker to issue
!      an error if an uninitialized variable has multiple definitions.
!      You can force a variable to be initialized with the `-fno-common'
!      flag or the `nocommon' attribute.
  
       Some file formats do not support arbitrary sections so the
!      `section' attribute is not available on all platforms.  If you
!      need to map the entire contents of a module to a particular
!      section, consider using the facilities of the linker instead.
  
! `tls_model ("TLS_MODEL")'
!      The `tls_model' attribute sets thread-local storage model (*note
!      Thread-Local::) of a particular `__thread' variable, overriding
!      `-ftls-model=' command-line switch on a per-variable basis.  The
!      TLS_MODEL argument should be one of `global-dynamic',
!      `local-dynamic', `initial-exec' or `local-exec'.
  
       Not all targets support this attribute.
  
! `unused'
       This attribute, attached to a variable, means that the variable is
       meant to be possibly unused.  GCC does not produce a warning for
       this variable.
  
! `used'
       This attribute, attached to a variable with static storage, means
       that the variable must be emitted even if it appears that the
       variable is not referenced.
--- 28850,28888 ----
              init_duart (&b);
            }
  
!      Use the 'section' attribute with _global_ variables and not _local_
!      variables, as shown in the example.
  
!      You may use the 'section' attribute with initialized or
       uninitialized global variables but the linker requires each object
       be defined once, with the exception that uninitialized variables
!      tentatively go in the 'common' (or 'bss') section and can be
!      multiply "defined".  Using the 'section' attribute changes what
!      section the variable goes into and may cause the linker to issue an
!      error if an uninitialized variable has multiple definitions.  You
!      can force a variable to be initialized with the '-fno-common' flag
!      or the 'nocommon' attribute.
  
       Some file formats do not support arbitrary sections so the
!      'section' attribute is not available on all platforms.  If you need
!      to map the entire contents of a module to a particular section,
!      consider using the facilities of the linker instead.
  
! 'tls_model ("TLS_MODEL")'
!      The 'tls_model' attribute sets thread-local storage model (*note
!      Thread-Local::) of a particular '__thread' variable, overriding
!      '-ftls-model=' command-line switch on a per-variable basis.  The
!      TLS_MODEL argument should be one of 'global-dynamic',
!      'local-dynamic', 'initial-exec' or 'local-exec'.
  
       Not all targets support this attribute.
  
! 'unused'
       This attribute, attached to a variable, means that the variable is
       meant to be possibly unused.  GCC does not produce a warning for
       this variable.
  
! 'used'
       This attribute, attached to a variable with static storage, means
       that the variable must be emitted even if it appears that the
       variable is not referenced.
*************** The following attributes are supported o
*** 29046,29104 ****
       attribute also means that the member is instantiated if the class
       itself is instantiated.
  
! `vector_size (BYTES)'
!      This attribute specifies the vector size for the variable,
!      measured in bytes.  For example, the declaration:
  
            int foo __attribute__ ((vector_size (16)));
  
!      causes the compiler to set the mode for `foo', to be 16 bytes,
!      divided into `int' sized units.  Assuming a 32-bit int (a vector of
!      4 units of 4 bytes), the corresponding mode of `foo' is V4SI.
  
       This attribute is only applicable to integral and float scalars,
       although arrays, pointers, and function return values are allowed
       in conjunction with this construct.
  
!      Aggregates with this attribute are invalid, even if they are of
!      the same size as a corresponding scalar.  For example, the
!      declaration:
  
            struct S { int a; };
            struct S  __attribute__ ((vector_size (16))) foo;
  
       is invalid even if the size of the structure is the same as the
!      size of the `int'.
  
! `visibility ("VISIBILITY_TYPE")'
       This attribute affects the linkage of the declaration to which it
!      is attached.  The `visibility' attribute is described in *note
       Common Function Attributes::.
  
! `weak'
!      The `weak' attribute is described in *note Common Function
       Attributes::.
  
- 
  
  File: gcc.info,  Node: AVR Variable Attributes,  Next: Blackfin Variable Attributes,  Prev: Common Variable Attributes,  Up: Variable Attributes
  
  6.32.2 AVR Variable Attributes
  ------------------------------
  
! `progmem'
!      The `progmem' attribute is used on the AVR to place read-only data
!      in the non-volatile program memory (flash). The `progmem'
       attribute accomplishes this by putting respective variables into a
!      section whose name starts with `.progmem'.
  
!      This attribute works similar to the `section' attribute but adds
!      additional checking. Notice that just like the `section'
!      attribute, `progmem' affects the location of the data but not how
       this data is accessed.
  
!      In order to read data located with the `progmem' attribute
!      (inline) assembler must be used.
            /* Use custom macros from AVR-LibC (http://nongnu.org/avr-libc/user-manual/) */
            #include <avr/pgmspace.h>
  
--- 28891,28947 ----
       attribute also means that the member is instantiated if the class
       itself is instantiated.
  
! 'vector_size (BYTES)'
!      This attribute specifies the vector size for the variable, measured
!      in bytes.  For example, the declaration:
  
            int foo __attribute__ ((vector_size (16)));
  
!      causes the compiler to set the mode for 'foo', to be 16 bytes,
!      divided into 'int' sized units.  Assuming a 32-bit int (a vector of
!      4 units of 4 bytes), the corresponding mode of 'foo' is V4SI.
  
       This attribute is only applicable to integral and float scalars,
       although arrays, pointers, and function return values are allowed
       in conjunction with this construct.
  
!      Aggregates with this attribute are invalid, even if they are of the
!      same size as a corresponding scalar.  For example, the declaration:
  
            struct S { int a; };
            struct S  __attribute__ ((vector_size (16))) foo;
  
       is invalid even if the size of the structure is the same as the
!      size of the 'int'.
  
! 'visibility ("VISIBILITY_TYPE")'
       This attribute affects the linkage of the declaration to which it
!      is attached.  The 'visibility' attribute is described in *note
       Common Function Attributes::.
  
! 'weak'
!      The 'weak' attribute is described in *note Common Function
       Attributes::.
  
  
  File: gcc.info,  Node: AVR Variable Attributes,  Next: Blackfin Variable Attributes,  Prev: Common Variable Attributes,  Up: Variable Attributes
  
  6.32.2 AVR Variable Attributes
  ------------------------------
  
! 'progmem'
!      The 'progmem' attribute is used on the AVR to place read-only data
!      in the non-volatile program memory (flash).  The 'progmem'
       attribute accomplishes this by putting respective variables into a
!      section whose name starts with '.progmem'.
  
!      This attribute works similar to the 'section' attribute but adds
!      additional checking.  Notice that just like the 'section'
!      attribute, 'progmem' affects the location of the data but not how
       this data is accessed.
  
!      In order to read data located with the 'progmem' attribute (inline)
!      assembler must be used.
            /* Use custom macros from AVR-LibC (http://nongnu.org/avr-libc/user-manual/) */
            #include <avr/pgmspace.h>
  
*************** File: gcc.info,  Node: AVR Variable Attr
*** 29117,29128 ****
       See also the *note AVR Named Address Spaces:: section for an
       alternate way to locate and access data in flash memory.
  
! `io'
! `io (ADDR)'
!      Variables with the `io' attribute are used to address
!      memory-mapped peripherals in the io address range.  If an address
!      is specified, the variable is assigned that address, and the value
!      is interpreted as an address in the data address space.  Example:
  
            volatile int porta __attribute__((io (0x22)));
  
--- 28960,28971 ----
       See also the *note AVR Named Address Spaces:: section for an
       alternate way to locate and access data in flash memory.
  
! 'io'
! 'io (ADDR)'
!      Variables with the 'io' attribute are used to address memory-mapped
!      peripherals in the io address range.  If an address is specified,
!      the variable is assigned that address, and the value is interpreted
!      as an address in the data address space.  Example:
  
            volatile int porta __attribute__((io (0x22)));
  
*************** File: gcc.info,  Node: AVR Variable Attr
*** 29135,29155 ****
  
            extern volatile int porta __attribute__((io));
  
! `io_low'
! `io_low (ADDR)'
!      This is like the `io' attribute, but additionally it informs the
       compiler that the object lies in the lower half of the I/O area,
!      allowing the use of `cbi', `sbi', `sbic' and `sbis' instructions.
  
! `address'
! `address (ADDR)'
!      Variables with the `address' attribute are used to address
       memory-mapped peripherals that may lie outside the io address
       range.
  
            volatile int porta __attribute__((address (0x600)));
  
- 
  
  File: gcc.info,  Node: Blackfin Variable Attributes,  Next: H8/300 Variable Attributes,  Prev: AVR Variable Attributes,  Up: Variable Attributes
  
--- 28978,28997 ----
  
            extern volatile int porta __attribute__((io));
  
! 'io_low'
! 'io_low (ADDR)'
!      This is like the 'io' attribute, but additionally it informs the
       compiler that the object lies in the lower half of the I/O area,
!      allowing the use of 'cbi', 'sbi', 'sbic' and 'sbis' instructions.
  
! 'address'
! 'address (ADDR)'
!      Variables with the 'address' attribute are used to address
       memory-mapped peripherals that may lie outside the io address
       range.
  
            volatile int porta __attribute__((address (0x600)));
  
  
  File: gcc.info,  Node: Blackfin Variable Attributes,  Next: H8/300 Variable Attributes,  Prev: AVR Variable Attributes,  Up: Variable Attributes
  
*************** File: gcc.info,  Node: Blackfin Variable
*** 29158,29177 ****
  
  Three attributes are currently defined for the Blackfin.
  
! `l1_data'
! `l1_data_A'
! `l1_data_B'
       Use these attributes on the Blackfin to place the variable into L1
!      Data SRAM.  Variables with `l1_data' attribute are put into the
!      specific section named `.l1.data'. Those with `l1_data_A'
!      attribute are put into the specific section named `.l1.data.A'.
!      Those with `l1_data_B' attribute are put into the specific section
!      named `.l1.data.B'.
  
! `l2'
       Use this attribute on the Blackfin to place the variable into L2
!      SRAM.  Variables with `l2' attribute are put into the specific
!      section named `.l2.data'.
  
  
  File: gcc.info,  Node: H8/300 Variable Attributes,  Next: IA-64 Variable Attributes,  Prev: Blackfin Variable Attributes,  Up: Variable Attributes
--- 29000,29019 ----
  
  Three attributes are currently defined for the Blackfin.
  
! 'l1_data'
! 'l1_data_A'
! 'l1_data_B'
       Use these attributes on the Blackfin to place the variable into L1
!      Data SRAM. Variables with 'l1_data' attribute are put into the
!      specific section named '.l1.data'.  Those with 'l1_data_A'
!      attribute are put into the specific section named '.l1.data.A'.
!      Those with 'l1_data_B' attribute are put into the specific section
!      named '.l1.data.B'.
  
! 'l2'
       Use this attribute on the Blackfin to place the variable into L2
!      SRAM. Variables with 'l2' attribute are put into the specific
!      section named '.l2.data'.
  
  
  File: gcc.info,  Node: H8/300 Variable Attributes,  Next: IA-64 Variable Attributes,  Prev: Blackfin Variable Attributes,  Up: Variable Attributes
*************** File: gcc.info,  Node: H8/300 Variable A
*** 29181,29204 ****
  
  These variable attributes are available for H8/300 targets:
  
! `eightbit_data'
!      Use this attribute on the H8/300, H8/300H, and H8S to indicate
!      that the specified variable should be placed into the eight-bit
!      data section.  The compiler generates more efficient code for
!      certain operations on data in the eight-bit data area.  Note the
!      eight-bit data area is limited to 256 bytes of data.
  
       You must use GAS and GLD from GNU binutils version 2.7 or later for
       this attribute to work correctly.
  
! `tiny_data'
       Use this attribute on the H8/300H and H8S to indicate that the
       specified variable should be placed into the tiny data section.
       The compiler generates more efficient code for loads and stores on
       data in the tiny data section.  Note the tiny data area is limited
       to slightly under 32KB of data.
  
- 
  
  File: gcc.info,  Node: IA-64 Variable Attributes,  Next: M32R/D Variable Attributes,  Prev: H8/300 Variable Attributes,  Up: Variable Attributes
  
--- 29023,29045 ----
  
  These variable attributes are available for H8/300 targets:
  
! 'eightbit_data'
!      Use this attribute on the H8/300, H8/300H, and H8S to indicate that
!      the specified variable should be placed into the eight-bit data
!      section.  The compiler generates more efficient code for certain
!      operations on data in the eight-bit data area.  Note the eight-bit
!      data area is limited to 256 bytes of data.
  
       You must use GAS and GLD from GNU binutils version 2.7 or later for
       this attribute to work correctly.
  
! 'tiny_data'
       Use this attribute on the H8/300H and H8S to indicate that the
       specified variable should be placed into the tiny data section.
       The compiler generates more efficient code for loads and stores on
       data in the tiny data section.  Note the tiny data area is limited
       to slightly under 32KB of data.
  
  
  File: gcc.info,  Node: IA-64 Variable Attributes,  Next: M32R/D Variable Attributes,  Prev: H8/300 Variable Attributes,  Up: Variable Attributes
  
*************** File: gcc.info,  Node: IA-64 Variable At
*** 29207,29222 ****
  
  The IA-64 back end supports the following variable attribute:
  
! `model (MODEL-NAME)'
       On IA-64, use this attribute to set the addressability of an
       object.  At present, the only supported identifier for MODEL-NAME
!      is `small', indicating addressability via "small" (22-bit)
!      addresses (so that their addresses can be loaded with the `addl'
       instruction).  Caveat: such addressing is by definition not
       position independent and hence this attribute must not be used for
       objects defined by shared libraries.
  
- 
  
  File: gcc.info,  Node: M32R/D Variable Attributes,  Next: MeP Variable Attributes,  Prev: IA-64 Variable Attributes,  Up: Variable Attributes
  
--- 29048,29063 ----
  
  The IA-64 back end supports the following variable attribute:
  
! 'model (MODEL-NAME)'
! 
       On IA-64, use this attribute to set the addressability of an
       object.  At present, the only supported identifier for MODEL-NAME
!      is 'small', indicating addressability via "small" (22-bit)
!      addresses (so that their addresses can be loaded with the 'addl'
       instruction).  Caveat: such addressing is by definition not
       position independent and hence this attribute must not be used for
       objects defined by shared libraries.
  
  
  File: gcc.info,  Node: M32R/D Variable Attributes,  Next: MeP Variable Attributes,  Prev: IA-64 Variable Attributes,  Up: Variable Attributes
  
*************** File: gcc.info,  Node: M32R/D Variable A
*** 29225,29240 ****
  
  One attribute is currently defined for the M32R/D.
  
! `model (MODEL-NAME)'
       Use this attribute on the M32R/D to set the addressability of an
!      object.  The identifier MODEL-NAME is one of `small', `medium', or
!      `large', representing each of the code models.
  
       Small model objects live in the lower 16MB of memory (so that their
!      addresses can be loaded with the `ld24' instruction).
  
       Medium and large model objects may live anywhere in the 32-bit
!      address space (the compiler generates `seth/add3' instructions to
       load their addresses).
  
  
--- 29066,29081 ----
  
  One attribute is currently defined for the M32R/D.
  
! 'model (MODEL-NAME)'
       Use this attribute on the M32R/D to set the addressability of an
!      object.  The identifier MODEL-NAME is one of 'small', 'medium', or
!      'large', representing each of the code models.
  
       Small model objects live in the lower 16MB of memory (so that their
!      addresses can be loaded with the 'ld24' instruction).
  
       Medium and large model objects may live anywhere in the 32-bit
!      address space (the compiler generates 'seth/add3' instructions to
       load their addresses).
  
  
*************** File: gcc.info,  Node: MeP Variable Attr
*** 29243,29297 ****
  6.32.7 MeP Variable Attributes
  ------------------------------
  
! The MeP target has a number of addressing modes and busses.  The `near'
  space spans the standard memory space's first 16 megabytes (24 bits).
! The `far' space spans the entire 32-bit memory space.  The `based'
! space is a 128-byte region in the memory space that is addressed
! relative to the `$tp' register.  The `tiny' space is a 65536-byte
! region relative to the `$gp' register.  In addition to these memory
! regions, the MeP target has a separate 16-bit control bus which is
! specified with `cb' attributes.
  
! `based'
!      Any variable with the `based' attribute is assigned to the
!      `.based' section, and is accessed with relative to the `$tp'
!      register.
  
! `tiny'
!      Likewise, the `tiny' attribute assigned variables to the `.tiny'
!      section, relative to the `$gp' register.
  
! `near'
!      Variables with the `near' attribute are assumed to have addresses
       that fit in a 24-bit addressing mode.  This is the default for
!      large variables (`-mtiny=4' is the default) but this attribute can
!      override `-mtiny=' for small variables, or override `-ml'.
  
! `far'
!      Variables with the `far' attribute are addressed using a full
       32-bit address.  Since this covers the entire memory space, this
       allows modules to make no assumptions about where variables might
       be stored.
  
! `io'
! `io (ADDR)'
!      Variables with the `io' attribute are used to address
!      memory-mapped peripherals.  If an address is specified, the
!      variable is assigned that address, else it is not assigned an
!      address (it is assumed some other module assigns an address).
!      Example:
  
            int timer_count __attribute__((io(0x123)));
  
! `cb'
! `cb (ADDR)'
!      Variables with the `cb' attribute are used to access the control
!      bus, using special instructions.  `addr' indicates the control bus
       address.  Example:
  
            int cpu_clock __attribute__((cb(0x123)));
  
- 
  
  File: gcc.info,  Node: Microsoft Windows Variable Attributes,  Next: MSP430 Variable Attributes,  Prev: MeP Variable Attributes,  Up: Variable Attributes
  
--- 29084,29135 ----
  6.32.7 MeP Variable Attributes
  ------------------------------
  
! The MeP target has a number of addressing modes and busses.  The 'near'
  space spans the standard memory space's first 16 megabytes (24 bits).
! The 'far' space spans the entire 32-bit memory space.  The 'based' space
! is a 128-byte region in the memory space that is addressed relative to
! the '$tp' register.  The 'tiny' space is a 65536-byte region relative to
! the '$gp' register.  In addition to these memory regions, the MeP target
! has a separate 16-bit control bus which is specified with 'cb'
! attributes.
  
! 'based'
!      Any variable with the 'based' attribute is assigned to the '.based'
!      section, and is accessed with relative to the '$tp' register.
  
! 'tiny'
!      Likewise, the 'tiny' attribute assigned variables to the '.tiny'
!      section, relative to the '$gp' register.
  
! 'near'
!      Variables with the 'near' attribute are assumed to have addresses
       that fit in a 24-bit addressing mode.  This is the default for
!      large variables ('-mtiny=4' is the default) but this attribute can
!      override '-mtiny=' for small variables, or override '-ml'.
  
! 'far'
!      Variables with the 'far' attribute are addressed using a full
       32-bit address.  Since this covers the entire memory space, this
       allows modules to make no assumptions about where variables might
       be stored.
  
! 'io'
! 'io (ADDR)'
!      Variables with the 'io' attribute are used to address memory-mapped
!      peripherals.  If an address is specified, the variable is assigned
!      that address, else it is not assigned an address (it is assumed
!      some other module assigns an address).  Example:
  
            int timer_count __attribute__((io(0x123)));
  
! 'cb'
! 'cb (ADDR)'
!      Variables with the 'cb' attribute are used to access the control
!      bus, using special instructions.  'addr' indicates the control bus
       address.  Example:
  
            int cpu_clock __attribute__((cb(0x123)));
  
  
  File: gcc.info,  Node: Microsoft Windows Variable Attributes,  Next: MSP430 Variable Attributes,  Prev: MeP Variable Attributes,  Up: Variable Attributes
  
*************** You can use these attributes on Microsof
*** 29302,29314 ****
  Variable Attributes:: for additional Windows compatibility attributes
  available on all x86 targets.
  
! `dllimport'
! `dllexport'
!      The `dllimport' and `dllexport' attributes are described in *note
       Microsoft Windows Function Attributes::.
  
! `selectany'
!      The `selectany' attribute causes an initialized global variable to
       have link-once semantics.  When multiple definitions of the
       variable are encountered by the linker, the first is selected and
       the remainder are discarded.  Following usage by the Microsoft
--- 29140,29152 ----
  Variable Attributes:: for additional Windows compatibility attributes
  available on all x86 targets.
  
! 'dllimport'
! 'dllexport'
!      The 'dllimport' and 'dllexport' attributes are described in *note
       Microsoft Windows Function Attributes::.
  
! 'selectany'
!      The 'selectany' attribute causes an initialized global variable to
       have link-once semantics.  When multiple definitions of the
       variable are encountered by the linker, the first is selected and
       the remainder are discarded.  Following usage by the Microsoft
*************** available on all x86 targets.
*** 29323,29339 ****
       constructor and destructor are protected by a link-once guard
       variable.
  
!      The `selectany' attribute is only available on Microsoft Windows
!      targets.  You can use `__declspec (selectany)' as a synonym for
!      `__attribute__ ((selectany))' for compatibility with other
       compilers.
  
! `shared'
       On Microsoft Windows, in addition to putting variable definitions
       in a named section, the section can also be shared among all
       running copies of an executable or DLL.  For example, this small
       program defines shared data by putting it in a named section
!      `shared' and marking the section shareable:
  
            int foo __attribute__((section ("shared"), shared)) = 0;
  
--- 29161,29177 ----
       constructor and destructor are protected by a link-once guard
       variable.
  
!      The 'selectany' attribute is only available on Microsoft Windows
!      targets.  You can use '__declspec (selectany)' as a synonym for
!      '__attribute__ ((selectany))' for compatibility with other
       compilers.
  
! 'shared'
       On Microsoft Windows, in addition to putting variable definitions
       in a named section, the section can also be shared among all
       running copies of an executable or DLL.  For example, this small
       program defines shared data by putting it in a named section
!      'shared' and marking the section shareable:
  
            int foo __attribute__((section ("shared"), shared)) = 0;
  
*************** available on all x86 targets.
*** 29345,29357 ****
              return 0;
            }
  
!      You may only use the `shared' attribute along with `section'
!      attribute with a fully-initialized global definition because of
!      the way linkers work.  See `section' attribute for more
!      information.
! 
!      The `shared' attribute is only available on Microsoft Windows.
  
  
  
  File: gcc.info,  Node: MSP430 Variable Attributes,  Next: PowerPC Variable Attributes,  Prev: Microsoft Windows Variable Attributes,  Up: Variable Attributes
--- 29183,29193 ----
              return 0;
            }
  
!      You may only use the 'shared' attribute along with 'section'
!      attribute with a fully-initialized global definition because of the
!      way linkers work.  See 'section' attribute for more information.
  
+      The 'shared' attribute is only available on Microsoft Windows.
  
  
  File: gcc.info,  Node: MSP430 Variable Attributes,  Next: PowerPC Variable Attributes,  Prev: Microsoft Windows Variable Attributes,  Up: Variable Attributes
*************** File: gcc.info,  Node: MSP430 Variable A
*** 29359,29382 ****
  6.32.9 MSP430 Variable Attributes
  ---------------------------------
  
! `noinit'
!      Any data with the `noinit' attribute will not be initialised by
!      the C runtime startup code, or the program loader.  Not
!      initialising data in this way can reduce program startup times.
  
! `persistent'
!      Any variable with the `persistent' attribute will not be
       initialised by the C runtime startup code.  Instead its value will
       be set once, when the application is loaded, and then never
       initialised again, even if the processor is reset or the program
!      restarts.  Persistent data is intended to be placed into FLASH
!      RAM, where its value will be retained across resets.  The linker
!      script being used to create the application should ensure that
!      persistent data is correctly placed.
  
! `lower'
! `upper'
! `either'
       These attributes are the same as the MSP430 function attributes of
       the same name (*note MSP430 Function Attributes::).  These
       attributes can be applied to both functions and variables.
--- 29195,29218 ----
  6.32.9 MSP430 Variable Attributes
  ---------------------------------
  
! 'noinit'
!      Any data with the 'noinit' attribute will not be initialised by the
!      C runtime startup code, or the program loader.  Not initialising
!      data in this way can reduce program startup times.
  
! 'persistent'
!      Any variable with the 'persistent' attribute will not be
       initialised by the C runtime startup code.  Instead its value will
       be set once, when the application is loaded, and then never
       initialised again, even if the processor is reset or the program
!      restarts.  Persistent data is intended to be placed into FLASH RAM,
!      where its value will be retained across resets.  The linker script
!      being used to create the application should ensure that persistent
!      data is correctly placed.
  
! 'lower'
! 'upper'
! 'either'
       These attributes are the same as the MSP430 function attributes of
       the same name (*note MSP430 Function Attributes::).  These
       attributes can be applied to both functions and variables.
*************** File: gcc.info,  Node: PowerPC Variable
*** 29388,29399 ****
  -----------------------------------
  
  Three attributes currently are defined for PowerPC configurations:
! `altivec', `ms_struct' and `gcc_struct'.
  
   For full documentation of the struct attributes please see the
  documentation in *note x86 Variable Attributes::.
  
!  For documentation of `altivec' attribute please see the documentation
  in *note PowerPC Type Attributes::.
  
  
--- 29224,29235 ----
  -----------------------------------
  
  Three attributes currently are defined for PowerPC configurations:
! 'altivec', 'ms_struct' and 'gcc_struct'.
  
   For full documentation of the struct attributes please see the
  documentation in *note x86 Variable Attributes::.
  
!  For documentation of 'altivec' attribute please see the documentation
  in *note PowerPC Type Attributes::.
  
  
*************** File: gcc.info,  Node: RL78 Variable Att
*** 29402,29408 ****
  6.32.11 RL78 Variable Attributes
  --------------------------------
  
! The RL78 back end supports the `saddr' variable attribute.  This
  specifies placement of the corresponding variable in the SADDR area,
  which can be accessed more efficiently than the default memory region.
  
--- 29238,29244 ----
  6.32.11 RL78 Variable Attributes
  --------------------------------
  
! The RL78 back end supports the 'saddr' variable attribute.  This
  specifies placement of the corresponding variable in the SADDR area,
  which can be accessed more efficiently than the default memory region.
  
*************** File: gcc.info,  Node: SPU Variable Attr
*** 29412,29418 ****
  6.32.12 SPU Variable Attributes
  -------------------------------
  
! The SPU supports the `spu_vector' attribute for variables.  For
  documentation of this attribute please see the documentation in *note
  SPU Type Attributes::.
  
--- 29248,29254 ----
  6.32.12 SPU Variable Attributes
  -------------------------------
  
! The SPU supports the 'spu_vector' attribute for variables.  For
  documentation of this attribute please see the documentation in *note
  SPU Type Attributes::.
  
*************** File: gcc.info,  Node: V850 Variable Att
*** 29424,29438 ****
  
  These variable attributes are supported by the V850 back end:
  
! `sda'
!      Use this attribute to explicitly place a variable in the small
!      data area, which can hold up to 64 kilobytes.
  
! `tda'
       Use this attribute to explicitly place a variable in the tiny data
       area, which can hold up to 256 bytes in total.
  
! `zda'
       Use this attribute to explicitly place a variable in the first 32
       kilobytes of memory.
  
--- 29260,29274 ----
  
  These variable attributes are supported by the V850 back end:
  
! 'sda'
!      Use this attribute to explicitly place a variable in the small data
!      area, which can hold up to 64 kilobytes.
  
! 'tda'
       Use this attribute to explicitly place a variable in the tiny data
       area, which can hold up to 256 bytes in total.
  
! 'zda'
       Use this attribute to explicitly place a variable in the first 32
       kilobytes of memory.
  
*************** File: gcc.info,  Node: x86 Variable Attr
*** 29442,29465 ****
  6.32.14 x86 Variable Attributes
  -------------------------------
  
! Two attributes are currently defined for x86 configurations:
! `ms_struct' and `gcc_struct'.
  
! `ms_struct'
! `gcc_struct'
!      If `packed' is used on a structure, or if bit-fields are used, it
       may be that the Microsoft ABI lays out the structure differently
       than the way GCC normally does.  Particularly when moving packed
       data between functions compiled with GCC and the native Microsoft
!      compiler (either via function call or as data in a file), it may
!      be necessary to access either format.
! 
!      The `ms_struct' and `gcc_struct' attributes correspond to the
!      `-mms-bitfields' and `-mno-ms-bitfields' command-line options,
!      respectively; see *note x86 Options::, for details of how
!      structure layout is affected.  *Note x86 Type Attributes::, for
!      information about the corresponding attributes on types.
  
  
  
  File: gcc.info,  Node: Xstormy16 Variable Attributes,  Prev: x86 Variable Attributes,  Up: Variable Attributes
--- 29278,29301 ----
  6.32.14 x86 Variable Attributes
  -------------------------------
  
! Two attributes are currently defined for x86 configurations: 'ms_struct'
! and 'gcc_struct'.
  
! 'ms_struct'
! 'gcc_struct'
! 
!      If 'packed' is used on a structure, or if bit-fields are used, it
       may be that the Microsoft ABI lays out the structure differently
       than the way GCC normally does.  Particularly when moving packed
       data between functions compiled with GCC and the native Microsoft
!      compiler (either via function call or as data in a file), it may be
!      necessary to access either format.
  
+      The 'ms_struct' and 'gcc_struct' attributes correspond to the
+      '-mms-bitfields' and '-mno-ms-bitfields' command-line options,
+      respectively; see *note x86 Options::, for details of how structure
+      layout is affected.  *Note x86 Type Attributes::, for information
+      about the corresponding attributes on types.
  
  
  File: gcc.info,  Node: Xstormy16 Variable Attributes,  Prev: x86 Variable Attributes,  Up: Variable Attributes
*************** File: gcc.info,  Node: Xstormy16 Variabl
*** 29468,29482 ****
  -------------------------------------
  
  One attribute is currently defined for xstormy16 configurations:
! `below100'.
  
! `below100'
!      If a variable has the `below100' attribute (`BELOW100' is allowed
!      also), GCC places the variable in the first 0x100 bytes of memory
!      and use special opcodes to access it.  Such variables are placed
!      in either the `.bss_below100' section or the `.data_below100'
!      section.
  
  
  
  File: gcc.info,  Node: Type Attributes,  Next: Label Attributes,  Prev: Variable Attributes,  Up: C Extensions
--- 29304,29317 ----
  -------------------------------------
  
  One attribute is currently defined for xstormy16 configurations:
! 'below100'.
  
! 'below100'
  
+      If a variable has the 'below100' attribute ('BELOW100' is allowed
+      also), GCC places the variable in the first 0x100 bytes of memory
+      and use special opcodes to access it.  Such variables are placed in
+      either the '.bss_below100' section or the '.data_below100' section.
  
  
  File: gcc.info,  Node: Type Attributes,  Next: Label Attributes,  Prev: Variable Attributes,  Up: C Extensions
*************** File: gcc.info,  Node: Type Attributes,
*** 29484,29507 ****
  6.33 Specifying Attributes of Types
  ===================================
  
! The keyword `__attribute__' allows you to specify special attributes of
! types.  Some type attributes apply only to `struct' and `union' types,
! while others can apply to any type defined via a `typedef' declaration.
  Other attributes are defined for functions (*note Function
  Attributes::), labels (*note Label Attributes::), enumerators (*note
  Enumerator Attributes::), and for variables (*note Variable
  Attributes::).
  
!  The `__attribute__' keyword is followed by an attribute specification
  inside double parentheses.
  
   You may specify type attributes in an enum, struct or union type
  declaration or definition by placing them immediately after the
! `struct', `union' or `enum' keyword.  A less preferred syntax is to
  place them just past the closing curly brace of the definition.
  
!  You can also include type attributes in a `typedef' declaration.
! *Note Attribute Syntax::, for details of the exact syntax for using
  attributes.
  
  * Menu:
--- 29319,29342 ----
  6.33 Specifying Attributes of Types
  ===================================
  
! The keyword '__attribute__' allows you to specify special attributes of
! types.  Some type attributes apply only to 'struct' and 'union' types,
! while others can apply to any type defined via a 'typedef' declaration.
  Other attributes are defined for functions (*note Function
  Attributes::), labels (*note Label Attributes::), enumerators (*note
  Enumerator Attributes::), and for variables (*note Variable
  Attributes::).
  
!  The '__attribute__' keyword is followed by an attribute specification
  inside double parentheses.
  
   You may specify type attributes in an enum, struct or union type
  declaration or definition by placing them immediately after the
! 'struct', 'union' or 'enum' keyword.  A less preferred syntax is to
  place them just past the closing curly brace of the definition.
  
!  You can also include type attributes in a 'typedef' declaration.  *Note
! Attribute Syntax::, for details of the exact syntax for using
  attributes.
  
  * Menu:
*************** File: gcc.info,  Node: Common Type Attri
*** 29521,29527 ****
  
  The following type attributes are supported on most targets.
  
! `aligned (ALIGNMENT)'
       This attribute specifies a minimum alignment (in bytes) for
       variables of the specified type.  For example, the declarations:
  
--- 29356,29362 ----
  
  The following type attributes are supported on most targets.
  
! 'aligned (ALIGNMENT)'
       This attribute specifies a minimum alignment (in bytes) for
       variables of the specified type.  For example, the declarations:
  
*************** The following type attributes are suppor
*** 29529,29602 ****
            typedef int more_aligned_int __attribute__ ((aligned (8)));
  
       force the compiler to ensure (as far as it can) that each variable
!      whose type is `struct S' or `more_aligned_int' is allocated and
       aligned _at least_ on a 8-byte boundary.  On a SPARC, having all
!      variables of type `struct S' aligned to 8-byte boundaries allows
!      the compiler to use the `ldd' and `std' (doubleword load and
!      store) instructions when copying one variable of type `struct S' to
       another, thus improving run-time efficiency.
  
!      Note that the alignment of any given `struct' or `union' type is
       required by the ISO C standard to be at least a perfect multiple of
       the lowest common multiple of the alignments of all of the members
!      of the `struct' or `union' in question.  This means that you _can_
!      effectively adjust the alignment of a `struct' or `union' type by
!      attaching an `aligned' attribute to any one of the members of such
!      a type, but the notation illustrated in the example above is a
!      more obvious, intuitive, and readable way to request the compiler
!      to adjust the alignment of an entire `struct' or `union' type.
  
       As in the preceding example, you can explicitly specify the
       alignment (in bytes) that you wish the compiler to use for a given
!      `struct' or `union' type.  Alternatively, you can leave out the
       alignment factor and just ask the compiler to align a type to the
       maximum useful alignment for the target machine you are compiling
       for.  For example, you could write:
  
            struct S { short f[3]; } __attribute__ ((aligned));
  
!      Whenever you leave out the alignment factor in an `aligned'
       attribute specification, the compiler automatically sets the
       alignment for the type to the largest alignment that is ever used
       for any data type on the target machine you are compiling for.
       Doing this can often make copy operations more efficient, because
       the compiler can use whatever instructions copy the biggest chunks
!      of memory when performing copies to or from the variables that
!      have types that you have aligned this way.
  
!      In the example above, if the size of each `short' is 2 bytes, then
!      the size of the entire `struct S' type is 6 bytes.  The smallest
       power of two that is greater than or equal to that is 8, so the
!      compiler sets the alignment for the entire `struct S' type to 8
       bytes.
  
       Note that although you can ask the compiler to select a
       time-efficient alignment for a given type and then declare only
!      individual stand-alone objects of that type, the compiler's
!      ability to select a time-efficient alignment is primarily useful
!      only when you plan to create arrays of variables having the
!      relevant (efficiently aligned) type.  If you declare or use arrays
!      of variables of an efficiently-aligned type, then it is likely
!      that your program also does pointer arithmetic (or subscripting,
!      which amounts to the same thing) on pointers to the relevant type,
!      and the code that the compiler generates for these pointer
!      arithmetic operations is often more efficient for
!      efficiently-aligned types than for other types.
  
!      Note that the effectiveness of `aligned' attributes may be limited
       by inherent limitations in your linker.  On many systems, the
       linker is only able to arrange for variables to be aligned up to a
       certain maximum alignment.  (For some linkers, the maximum
       supported alignment may be very very small.)  If your linker is
       only able to align variables up to a maximum of 8-byte alignment,
!      then specifying `aligned(16)' in an `__attribute__' still only
       provides you with 8-byte alignment.  See your linker documentation
       for further information.
  
!      The `aligned' attribute can only increase alignment.  Alignment
!      can be decreased by specifying the `packed' attribute.  See below.
  
! `bnd_variable_size'
       When applied to a structure field, this attribute tells Pointer
       Bounds Checker that the size of this field should not be computed
       using static type information.  It may be used to mark
--- 29364,29437 ----
            typedef int more_aligned_int __attribute__ ((aligned (8)));
  
       force the compiler to ensure (as far as it can) that each variable
!      whose type is 'struct S' or 'more_aligned_int' is allocated and
       aligned _at least_ on a 8-byte boundary.  On a SPARC, having all
!      variables of type 'struct S' aligned to 8-byte boundaries allows
!      the compiler to use the 'ldd' and 'std' (doubleword load and store)
!      instructions when copying one variable of type 'struct S' to
       another, thus improving run-time efficiency.
  
!      Note that the alignment of any given 'struct' or 'union' type is
       required by the ISO C standard to be at least a perfect multiple of
       the lowest common multiple of the alignments of all of the members
!      of the 'struct' or 'union' in question.  This means that you _can_
!      effectively adjust the alignment of a 'struct' or 'union' type by
!      attaching an 'aligned' attribute to any one of the members of such
!      a type, but the notation illustrated in the example above is a more
!      obvious, intuitive, and readable way to request the compiler to
!      adjust the alignment of an entire 'struct' or 'union' type.
  
       As in the preceding example, you can explicitly specify the
       alignment (in bytes) that you wish the compiler to use for a given
!      'struct' or 'union' type.  Alternatively, you can leave out the
       alignment factor and just ask the compiler to align a type to the
       maximum useful alignment for the target machine you are compiling
       for.  For example, you could write:
  
            struct S { short f[3]; } __attribute__ ((aligned));
  
!      Whenever you leave out the alignment factor in an 'aligned'
       attribute specification, the compiler automatically sets the
       alignment for the type to the largest alignment that is ever used
       for any data type on the target machine you are compiling for.
       Doing this can often make copy operations more efficient, because
       the compiler can use whatever instructions copy the biggest chunks
!      of memory when performing copies to or from the variables that have
!      types that you have aligned this way.
  
!      In the example above, if the size of each 'short' is 2 bytes, then
!      the size of the entire 'struct S' type is 6 bytes.  The smallest
       power of two that is greater than or equal to that is 8, so the
!      compiler sets the alignment for the entire 'struct S' type to 8
       bytes.
  
       Note that although you can ask the compiler to select a
       time-efficient alignment for a given type and then declare only
!      individual stand-alone objects of that type, the compiler's ability
!      to select a time-efficient alignment is primarily useful only when
!      you plan to create arrays of variables having the relevant
!      (efficiently aligned) type.  If you declare or use arrays of
!      variables of an efficiently-aligned type, then it is likely that
!      your program also does pointer arithmetic (or subscripting, which
!      amounts to the same thing) on pointers to the relevant type, and
!      the code that the compiler generates for these pointer arithmetic
!      operations is often more efficient for efficiently-aligned types
!      than for other types.
  
!      Note that the effectiveness of 'aligned' attributes may be limited
       by inherent limitations in your linker.  On many systems, the
       linker is only able to arrange for variables to be aligned up to a
       certain maximum alignment.  (For some linkers, the maximum
       supported alignment may be very very small.)  If your linker is
       only able to align variables up to a maximum of 8-byte alignment,
!      then specifying 'aligned(16)' in an '__attribute__' still only
       provides you with 8-byte alignment.  See your linker documentation
       for further information.
  
!      The 'aligned' attribute can only increase alignment.  Alignment can
!      be decreased by specifying the 'packed' attribute.  See below.
  
! 'bnd_variable_size'
       When applied to a structure field, this attribute tells Pointer
       Bounds Checker that the size of this field should not be computed
       using static type information.  It may be used to mark
*************** The following type attributes are suppor
*** 29622,29638 ****
            S *p = (S *)malloc (sizeof(S) + 100);
            p->data[10] = 0; //OK
  
! `deprecated'
! `deprecated (MSG)'
!      The `deprecated' attribute results in a warning if the type is
!      used anywhere in the source file.  This is useful when identifying
!      types that are expected to be removed in a future version of a
!      program.  If possible, the warning also includes the location of
!      the declaration of the deprecated type, to enable users to easily
!      find further information about why the type is deprecated, or what
!      they should do instead.  Note that the warnings only occur for
!      uses and then only if the type is being applied to an identifier
!      that itself is not being declared as deprecated.
  
            typedef int T1 __attribute__ ((deprecated));
            T1 x;
--- 29457,29473 ----
            S *p = (S *)malloc (sizeof(S) + 100);
            p->data[10] = 0; //OK
  
! 'deprecated'
! 'deprecated (MSG)'
!      The 'deprecated' attribute results in a warning if the type is used
!      anywhere in the source file.  This is useful when identifying types
!      that are expected to be removed in a future version of a program.
!      If possible, the warning also includes the location of the
!      declaration of the deprecated type, to enable users to easily find
!      further information about why the type is deprecated, or what they
!      should do instead.  Note that the warnings only occur for uses and
!      then only if the type is being applied to an identifier that itself
!      is not being declared as deprecated.
  
            typedef int T1 __attribute__ ((deprecated));
            T1 x;
*************** The following type attributes are suppor
*** 29647,29675 ****
       deprecated.  Similarly for line 6.  The optional MSG argument,
       which must be a string, is printed in the warning if present.
  
!      The `deprecated' attribute can also be used for functions and
       variables (*note Function Attributes::, *note Variable
       Attributes::.)
  
! `designated_init'
       This attribute may only be applied to structure types.  It
       indicates that any initialization of an object of this type must
       use designated initializers rather than positional initializers.
!      The intent of this attribute is to allow the programmer to
!      indicate that a structure's layout may change, and that therefore
!      relying on positional initialization will result in future
!      breakage.
  
       GCC emits warnings based on this attribute by default; use
!      `-Wno-designated-init' to suppress them.
  
! `may_alias'
       Accesses through pointers to types with this attribute are not
!      subject to type-based alias analysis, but are instead assumed to
!      be able to alias any other type of objects.  In the context of
!      section 6.5 paragraph 7 of the C99 standard, an lvalue expression
       dereferencing such a pointer is treated like having a character
!      type.  See `-fstrict-aliasing' for more information on aliasing
       issues.  This extension exists to support some vector APIs, in
       which pointers to one vector type are permitted to alias pointers
       to a different vector type.
--- 29482,29509 ----
       deprecated.  Similarly for line 6.  The optional MSG argument,
       which must be a string, is printed in the warning if present.
  
!      The 'deprecated' attribute can also be used for functions and
       variables (*note Function Attributes::, *note Variable
       Attributes::.)
  
! 'designated_init'
       This attribute may only be applied to structure types.  It
       indicates that any initialization of an object of this type must
       use designated initializers rather than positional initializers.
!      The intent of this attribute is to allow the programmer to indicate
!      that a structure's layout may change, and that therefore relying on
!      positional initialization will result in future breakage.
  
       GCC emits warnings based on this attribute by default; use
!      '-Wno-designated-init' to suppress them.
  
! 'may_alias'
       Accesses through pointers to types with this attribute are not
!      subject to type-based alias analysis, but are instead assumed to be
!      able to alias any other type of objects.  In the context of section
!      6.5 paragraph 7 of the C99 standard, an lvalue expression
       dereferencing such a pointer is treated like having a character
!      type.  See '-fstrict-aliasing' for more information on aliasing
       issues.  This extension exists to support some vector APIs, in
       which pointers to one vector type are permitted to alias pointers
       to a different vector type.
*************** The following type attributes are suppor
*** 29695,29720 ****
              exit(0);
            }
  
!      If you replaced `short_a' with `short' in the variable
!      declaration, the above program would abort when compiled with
!      `-fstrict-aliasing', which is on by default at `-O2' or above.
  
! `packed'
!      This attribute, attached to `struct' or `union' type definition,
       specifies that each member (other than zero-width bit-fields) of
       the structure or union is placed to minimize the memory required.
!      When attached to an `enum' definition, it indicates that the
       smallest integral type should be used.
  
!      Specifying the `packed' attribute for `struct' and `union' types
!      is equivalent to specifying the `packed' attribute on each of the
!      structure or union members.  Specifying the `-fshort-enums' flag
!      on the command line is equivalent to specifying the `packed'
!      attribute on all `enum' definitions.
  
!      In the following example `struct my_packed_struct''s members are
!      packed closely together, but the internal layout of its `s' member
!      is not packed--to do that, `struct my_unpacked_struct' needs to be
       packed too.
  
            struct my_unpacked_struct
--- 29529,29554 ----
              exit(0);
            }
  
!      If you replaced 'short_a' with 'short' in the variable declaration,
!      the above program would abort when compiled with
!      '-fstrict-aliasing', which is on by default at '-O2' or above.
  
! 'packed'
!      This attribute, attached to 'struct' or 'union' type definition,
       specifies that each member (other than zero-width bit-fields) of
       the structure or union is placed to minimize the memory required.
!      When attached to an 'enum' definition, it indicates that the
       smallest integral type should be used.
  
!      Specifying the 'packed' attribute for 'struct' and 'union' types is
!      equivalent to specifying the 'packed' attribute on each of the
!      structure or union members.  Specifying the '-fshort-enums' flag on
!      the command line is equivalent to specifying the 'packed' attribute
!      on all 'enum' definitions.
  
!      In the following example 'struct my_packed_struct''s members are
!      packed closely together, but the internal layout of its 's' member
!      is not packed--to do that, 'struct my_unpacked_struct' needs to be
       packed too.
  
            struct my_unpacked_struct
*************** The following type attributes are suppor
*** 29730,29746 ****
                 struct my_unpacked_struct s;
              };
  
!      You may only specify the `packed' attribute attribute on the
!      definition of an `enum', `struct' or `union', not on a `typedef'
       that does not also define the enumerated type, structure or union.
  
! `scalar_storage_order ("ENDIANNESS")'
!      When attached to a `union' or a `struct', this attribute sets the
       storage order, aka endianness, of the scalar fields of the type, as
       well as the array fields whose component is scalar.  The supported
!      endiannesses are `big-endian' and `little-endian'.  The attribute
!      has no effects on fields which are themselves a `union', a `struct'
!      or an array whose component is a `union' or a `struct', and it is
       possible for these fields to have a different scalar storage order
       than the enclosing type.
  
--- 29564,29580 ----
                 struct my_unpacked_struct s;
              };
  
!      You may only specify the 'packed' attribute attribute on the
!      definition of an 'enum', 'struct' or 'union', not on a 'typedef'
       that does not also define the enumerated type, structure or union.
  
! 'scalar_storage_order ("ENDIANNESS")'
!      When attached to a 'union' or a 'struct', this attribute sets the
       storage order, aka endianness, of the scalar fields of the type, as
       well as the array fields whose component is scalar.  The supported
!      endiannesses are 'big-endian' and 'little-endian'.  The attribute
!      has no effects on fields which are themselves a 'union', a 'struct'
!      or an array whose component is a 'union' or a 'struct', and it is
       possible for these fields to have a different scalar storage order
       than the enclosing type.
  
*************** The following type attributes are suppor
*** 29750,29768 ****
       little-endian.
  
       Additional restrictions are enforced for types with the reverse
!      scalar storage order with regard to the scalar storage order of
!      the target:
  
!         * Taking the address of a scalar field of a `union' or a
!           `struct' with reverse scalar storage order is not permitted
            and yields an error.
- 
          * Taking the address of an array field, whose component is
!           scalar, of a `union' or a `struct' with reverse scalar
!           storage order is permitted but yields a warning, unless
!           `-Wno-scalar-storage-order' is specified.
! 
!         * Taking the address of a `union' or a `struct' with reverse
            scalar storage order is permitted.
  
       These restrictions exist because the storage order attribute is
--- 29584,29600 ----
       little-endian.
  
       Additional restrictions are enforced for types with the reverse
!      scalar storage order with regard to the scalar storage order of the
!      target:
  
!         * Taking the address of a scalar field of a 'union' or a
!           'struct' with reverse scalar storage order is not permitted
            and yields an error.
          * Taking the address of an array field, whose component is
!           scalar, of a 'union' or a 'struct' with reverse scalar storage
!           order is permitted but yields a warning, unless
!           '-Wno-scalar-storage-order' is specified.
!         * Taking the address of a 'union' or a 'struct' with reverse
            scalar storage order is permitted.
  
       These restrictions exist because the storage order attribute is
*************** The following type attributes are suppor
*** 29771,29783 ****
       address generally does not work.  The second case is nevertheless
       allowed to be able to perform a block copy from or to the array.
  
!      Moreover, the use of type punning or aliasing to toggle the
!      storage order is not supported; that is to say, a given scalar
!      object cannot be accessed through distinct types that assign a
!      different storage order to it.
  
! `transparent_union'
!      This attribute, attached to a `union' type definition, indicates
       that any function parameter having that union type causes calls to
       that function to be treated in a special way.
  
--- 29603,29616 ----
       address generally does not work.  The second case is nevertheless
       allowed to be able to perform a block copy from or to the array.
  
!      Moreover, the use of type punning or aliasing to toggle the storage
!      order is not supported; that is to say, a given scalar object
!      cannot be accessed through distinct types that assign a different
!      storage order to it.
  
! 'transparent_union'
! 
!      This attribute, attached to a 'union' type definition, indicates
       that any function parameter having that union type causes calls to
       that function to be treated in a special way.
  
*************** The following type attributes are suppor
*** 29787,29793 ****
       null pointer constant or a void pointer expression; and if the
       union contains a void pointer type, the corresponding argument can
       be any pointer expression.  If the union member type is a pointer,
!      qualifiers like `const' on the referenced type must be respected,
       just as with normal pointer conversions.
  
       Second, the argument is passed to the function using the calling
--- 29620,29626 ----
       null pointer constant or a void pointer expression; and if the
       union contains a void pointer type, the corresponding argument can
       be any pointer expression.  If the union member type is a pointer,
!      qualifiers like 'const' on the referenced type must be respected,
       just as with normal pointer conversions.
  
       Second, the argument is passed to the function using the calling
*************** The following type attributes are suppor
*** 29798,29810 ****
  
       Transparent unions are designed for library functions that have
       multiple interfaces for compatibility reasons.  For example,
!      suppose the `wait' function must accept either a value of type
!      `int *' to comply with POSIX, or a value of type `union wait *' to
!      comply with the 4.1BSD interface.  If `wait''s parameter were
!      `void *', `wait' would accept both kinds of arguments, but it
!      would also accept any other pointer type and this would make
!      argument type checking less useful.  Instead, `<sys/wait.h>' might
!      define the interface as follows:
  
            typedef union __attribute__ ((__transparent_union__))
              {
--- 29631,29643 ----
  
       Transparent unions are designed for library functions that have
       multiple interfaces for compatibility reasons.  For example,
!      suppose the 'wait' function must accept either a value of type 'int
!      *' to comply with POSIX, or a value of type 'union wait *' to
!      comply with the 4.1BSD interface.  If 'wait''s parameter were 'void
!      *', 'wait' would accept both kinds of arguments, but it would also
!      accept any other pointer type and this would make argument type
!      checking less useful.  Instead, '<sys/wait.h>' might define the
!      interface as follows:
  
            typedef union __attribute__ ((__transparent_union__))
              {
*************** The following type attributes are suppor
*** 29814,29835 ****
  
            pid_t wait (wait_status_ptr_t);
  
!      This interface allows either `int *' or `union wait *' arguments
!      to be passed, using the `int *' calling convention.  The program
!      can call `wait' with arguments of either type:
  
            int w1 () { int w; return wait (&w); }
            int w2 () { union wait w; return wait (&w); }
  
!      With this interface, `wait''s implementation might look like this:
  
            pid_t wait (wait_status_ptr_t p)
            {
              return waitpid (-1, p.__ip, 0);
            }
  
! `unused'
!      When attached to a type (including a `union' or a `struct'), this
       attribute means that variables of that type are meant to appear
       possibly unused.  GCC does not produce a warning for any variables
       of that type, even if the variable appears to do nothing.  This is
--- 29647,29668 ----
  
            pid_t wait (wait_status_ptr_t);
  
!      This interface allows either 'int *' or 'union wait *' arguments to
!      be passed, using the 'int *' calling convention.  The program can
!      call 'wait' with arguments of either type:
  
            int w1 () { int w; return wait (&w); }
            int w2 () { union wait w; return wait (&w); }
  
!      With this interface, 'wait''s implementation might look like this:
  
            pid_t wait (wait_status_ptr_t p)
            {
              return waitpid (-1, p.__ip, 0);
            }
  
! 'unused'
!      When attached to a type (including a 'union' or a 'struct'), this
       attribute means that variables of that type are meant to appear
       possibly unused.  GCC does not produce a warning for any variables
       of that type, even if the variable appears to do nothing.  This is
*************** The following type attributes are suppor
*** 29837,29859 ****
       defined and then not referenced, but contain constructors and
       destructors that have nontrivial bookkeeping functions.
  
! `visibility'
!      In C++, attribute visibility (*note Function Attributes::) can
!      also be applied to class, struct, union and enum types.  Unlike
!      other type attributes, the attribute must appear between the
!      initial keyword and the name of the type; it cannot appear after
!      the body of the type.
  
       Note that the type visibility is applied to vague linkage entities
       associated with the class (vtable, typeinfo node, etc.).  In
       particular, if a class is thrown as an exception in one shared
       object and caught in another, the class must have default
!      visibility.  Otherwise the two shared objects are unable to use
!      the same typeinfo node and exception handling will break.
! 
  
   To specify multiple attributes, separate them by commas within the
! double parentheses: for example, `__attribute__ ((aligned (16),
  packed))'.
  
  
--- 29670,29691 ----
       defined and then not referenced, but contain constructors and
       destructors that have nontrivial bookkeeping functions.
  
! 'visibility'
!      In C++, attribute visibility (*note Function Attributes::) can also
!      be applied to class, struct, union and enum types.  Unlike other
!      type attributes, the attribute must appear between the initial
!      keyword and the name of the type; it cannot appear after the body
!      of the type.
  
       Note that the type visibility is applied to vague linkage entities
       associated with the class (vtable, typeinfo node, etc.).  In
       particular, if a class is thrown as an exception in one shared
       object and caught in another, the class must have default
!      visibility.  Otherwise the two shared objects are unable to use the
!      same typeinfo node and exception handling will break.
  
   To specify multiple attributes, separate them by commas within the
! double parentheses: for example, '__attribute__ ((aligned (16),
  packed))'.
  
  
*************** File: gcc.info,  Node: ARM Type Attribut
*** 29862,29871 ****
  6.33.2 ARM Type Attributes
  --------------------------
  
! On those ARM targets that support `dllimport' (such as Symbian OS), you
! can use the `notshared' attribute to indicate that the virtual table
! and other similar data for a class should not be exported from a DLL.
! For example:
  
       class __declspec(notshared) C {
       public:
--- 29694,29703 ----
  6.33.2 ARM Type Attributes
  --------------------------
  
! On those ARM targets that support 'dllimport' (such as Symbian OS), you
! can use the 'notshared' attribute to indicate that the virtual table and
! other similar data for a class should not be exported from a DLL.  For
! example:
  
       class __declspec(notshared) C {
       public:
*************** For example:
*** 29876,29884 ****
       __declspec(dllexport)
       C::C() {}
  
! In this code, `C::C' is exported from the current DLL, but the virtual
! table for `C' is not exported.  (You can use `__attribute__' instead of
! `__declspec' if you prefer, but most Symbian OS code uses `__declspec'.)
  
  
  File: gcc.info,  Node: MeP Type Attributes,  Next: PowerPC Type Attributes,  Prev: ARM Type Attributes,  Up: Type Attributes
--- 29708,29716 ----
       __declspec(dllexport)
       C::C() {}
  
! In this code, 'C::C' is exported from the current DLL, but the virtual
! table for 'C' is not exported.  (You can use '__attribute__' instead of
! '__declspec' if you prefer, but most Symbian OS code uses '__declspec'.)
  
  
  File: gcc.info,  Node: MeP Type Attributes,  Next: PowerPC Type Attributes,  Prev: ARM Type Attributes,  Up: Type Attributes
*************** File: gcc.info,  Node: MeP Type Attribut
*** 29887,29894 ****
  --------------------------
  
  Many of the MeP variable attributes may be applied to types as well.
! Specifically, the `based', `tiny', `near', and `far' attributes may be
! applied to either.  The `io' and `cb' attributes may not be applied to
  types.
  
  
--- 29719,29726 ----
  --------------------------
  
  Many of the MeP variable attributes may be applied to types as well.
! Specifically, the 'based', 'tiny', 'near', and 'far' attributes may be
! applied to either.  The 'io' and 'cb' attributes may not be applied to
  types.
  
  
*************** File: gcc.info,  Node: PowerPC Type Attr
*** 29898,29920 ****
  ------------------------------
  
  Three attributes currently are defined for PowerPC configurations:
! `altivec', `ms_struct' and `gcc_struct'.
  
!  For full documentation of the `ms_struct' and `gcc_struct' attributes
  please see the documentation in *note x86 Type Attributes::.
  
!  The `altivec' attribute allows one to declare AltiVec vector data
! types supported by the AltiVec Programming Interface Manual.  The
! attribute requires an argument to specify one of three vector types:
! `vector__', `pixel__' (always followed by unsigned short), and `bool__'
! (always followed by unsigned).
  
       __attribute__((altivec(vector__)))
       __attribute__((altivec(pixel__))) unsigned short
       __attribute__((altivec(bool__))) unsigned
  
!  These attributes mainly are intended to support the `__vector',
! `__pixel', and `__bool' AltiVec keywords.
  
  
  File: gcc.info,  Node: SPU Type Attributes,  Next: x86 Type Attributes,  Prev: PowerPC Type Attributes,  Up: Type Attributes
--- 29730,29752 ----
  ------------------------------
  
  Three attributes currently are defined for PowerPC configurations:
! 'altivec', 'ms_struct' and 'gcc_struct'.
  
!  For full documentation of the 'ms_struct' and 'gcc_struct' attributes
  please see the documentation in *note x86 Type Attributes::.
  
!  The 'altivec' attribute allows one to declare AltiVec vector data types
! supported by the AltiVec Programming Interface Manual.  The attribute
! requires an argument to specify one of three vector types: 'vector__',
! 'pixel__' (always followed by unsigned short), and 'bool__' (always
! followed by unsigned).
  
       __attribute__((altivec(vector__)))
       __attribute__((altivec(pixel__))) unsigned short
       __attribute__((altivec(bool__))) unsigned
  
!  These attributes mainly are intended to support the '__vector',
! '__pixel', and '__bool' AltiVec keywords.
  
  
  File: gcc.info,  Node: SPU Type Attributes,  Next: x86 Type Attributes,  Prev: PowerPC Type Attributes,  Up: Type Attributes
*************** File: gcc.info,  Node: SPU Type Attribut
*** 29922,29931 ****
  6.33.5 SPU Type Attributes
  --------------------------
  
! The SPU supports the `spu_vector' attribute for types.  This attribute
  allows one to declare vector data types supported by the
  Sony/Toshiba/IBM SPU Language Extensions Specification.  It is intended
! to support the `__vector' keyword.
  
  
  File: gcc.info,  Node: x86 Type Attributes,  Prev: SPU Type Attributes,  Up: Type Attributes
--- 29754,29763 ----
  6.33.5 SPU Type Attributes
  --------------------------
  
! The SPU supports the 'spu_vector' attribute for types.  This attribute
  allows one to declare vector data types supported by the
  Sony/Toshiba/IBM SPU Language Extensions Specification.  It is intended
! to support the '__vector' keyword.
  
  
  File: gcc.info,  Node: x86 Type Attributes,  Prev: SPU Type Attributes,  Up: Type Attributes
*************** File: gcc.info,  Node: x86 Type Attribut
*** 29933,29956 ****
  6.33.6 x86 Type Attributes
  --------------------------
  
! Two attributes are currently defined for x86 configurations:
! `ms_struct' and `gcc_struct'.
  
! `ms_struct'
! `gcc_struct'
!      If `packed' is used on a structure, or if bit-fields are used it
       may be that the Microsoft ABI packs them differently than GCC
       normally packs them.  Particularly when moving packed data between
       functions compiled with GCC and the native Microsoft compiler
       (either via function call or as data in a file), it may be
       necessary to access either format.
  
!      The `ms_struct' and `gcc_struct' attributes correspond to the
!      `-mms-bitfields' and `-mno-ms-bitfields' command-line options,
!      respectively; see *note x86 Options::, for details of how
!      structure layout is affected.  *Note x86 Variable Attributes::,
!      for information about the corresponding attributes on variables.
! 
  
  
  File: gcc.info,  Node: Label Attributes,  Next: Enumerator Attributes,  Prev: Type Attributes,  Up: C Extensions
--- 29765,29788 ----
  6.33.6 x86 Type Attributes
  --------------------------
  
! Two attributes are currently defined for x86 configurations: 'ms_struct'
! and 'gcc_struct'.
  
! 'ms_struct'
! 'gcc_struct'
! 
!      If 'packed' is used on a structure, or if bit-fields are used it
       may be that the Microsoft ABI packs them differently than GCC
       normally packs them.  Particularly when moving packed data between
       functions compiled with GCC and the native Microsoft compiler
       (either via function call or as data in a file), it may be
       necessary to access either format.
  
!      The 'ms_struct' and 'gcc_struct' attributes correspond to the
!      '-mms-bitfields' and '-mno-ms-bitfields' command-line options,
!      respectively; see *note x86 Options::, for details of how structure
!      layout is affected.  *Note x86 Variable Attributes::, for
!      information about the corresponding attributes on variables.
  
  
  File: gcc.info,  Node: Label Attributes,  Next: Enumerator Attributes,  Prev: Type Attributes,  Up: C Extensions
*************** are available for functions (*note Funct
*** 29964,29972 ****
  (*note Variable Attributes::), enumerators (*note Enumerator
  Attributes::), and for types (*note Type Attributes::).
  
!  This example uses the `cold' label attribute to indicate the
! `ErrorHandling' branch is unlikely to be taken and that the
! `ErrorHandling' label is unused:
  
  
          asm goto ("some asm" : : : : NoError);
--- 29796,29804 ----
  (*note Variable Attributes::), enumerators (*note Enumerator
  Attributes::), and for types (*note Type Attributes::).
  
!  This example uses the 'cold' label attribute to indicate the
! 'ErrorHandling' branch is unlikely to be taken and that the
! 'ErrorHandling' label is unused:
  
  
          asm goto ("some asm" : : : : NoError);
*************** Attributes::), and for types (*note Type
*** 29981,30006 ****
          printf("no error\n");
          return 1;
  
! `unused'
       This feature is intended for program-generated code that may
!      contain unused labels, but which is compiled with `-Wall'.  It is
       not normally appropriate to use in it human-written code, though it
       could be useful in cases where the code that jumps to the label is
!      contained within an `#ifdef' conditional.
  
! `hot'
!      The `hot' attribute on a label is used to inform the compiler that
!      the path following the label is more likely than paths that are
!      not so annotated.  This attribute is used in cases where
!      `__builtin_expect' cannot be used, for instance with computed goto
!      or `asm goto'.
  
! `cold'
!      The `cold' attribute on labels is used to inform the compiler that
       the path following the label is unlikely to be executed.  This
!      attribute is used in cases where `__builtin_expect' cannot be
!      used, for instance with computed goto or `asm goto'.
! 
  
  
  File: gcc.info,  Node: Enumerator Attributes,  Next: Attribute Syntax,  Prev: Label Attributes,  Up: C Extensions
--- 29813,29837 ----
          printf("no error\n");
          return 1;
  
! 'unused'
       This feature is intended for program-generated code that may
!      contain unused labels, but which is compiled with '-Wall'.  It is
       not normally appropriate to use in it human-written code, though it
       could be useful in cases where the code that jumps to the label is
!      contained within an '#ifdef' conditional.
  
! 'hot'
!      The 'hot' attribute on a label is used to inform the compiler that
!      the path following the label is more likely than paths that are not
!      so annotated.  This attribute is used in cases where
!      '__builtin_expect' cannot be used, for instance with computed goto
!      or 'asm goto'.
  
! 'cold'
!      The 'cold' attribute on labels is used to inform the compiler that
       the path following the label is unlikely to be executed.  This
!      attribute is used in cases where '__builtin_expect' cannot be used,
!      for instance with computed goto or 'asm goto'.
  
  
  File: gcc.info,  Node: Enumerator Attributes,  Next: Attribute Syntax,  Prev: Label Attributes,  Up: C Extensions
*************** attributes are available for functions (
*** 30014,30021 ****
  variables (*note Variable Attributes::), labels (*note Label
  Attributes::), and for types (*note Type Attributes::).
  
!  This example uses the `deprecated' enumerator attribute to indicate the
! `oldval' enumerator is deprecated:
  
       enum E {
         oldval __attribute__((deprecated)),
--- 29845,29852 ----
  variables (*note Variable Attributes::), labels (*note Label
  Attributes::), and for types (*note Type Attributes::).
  
!  This example uses the 'deprecated' enumerator attribute to indicate the
! 'oldval' enumerator is deprecated:
  
       enum E {
         oldval __attribute__((deprecated)),
*************** Attributes::), and for types (*note Type
*** 30028,30043 ****
         return oldval;
       }
  
! `deprecated'
!      The `deprecated' attribute results in a warning if the enumerator
       is used anywhere in the source file.  This is useful when
!      identifying enumerators that are expected to be removed in a
!      future version of a program.  The warning also includes the
!      location of the declaration of the deprecated enumerator, to
!      enable users to easily find further information about why the
!      enumerator is deprecated, or what they should do instead.  Note
!      that the warnings only occurs for uses.
! 
  
  
  File: gcc.info,  Node: Attribute Syntax,  Next: Function Prototypes,  Prev: Enumerator Attributes,  Up: C Extensions
--- 29859,29873 ----
         return oldval;
       }
  
! 'deprecated'
!      The 'deprecated' attribute results in a warning if the enumerator
       is used anywhere in the source file.  This is useful when
!      identifying enumerators that are expected to be removed in a future
!      version of a program.  The warning also includes the location of
!      the declaration of the deprecated enumerator, to enable users to
!      easily find further information about why the enumerator is
!      deprecated, or what they should do instead.  Note that the warnings
!      only occurs for uses.
  
  
  File: gcc.info,  Node: Attribute Syntax,  Next: Function Prototypes,  Prev: Enumerator Attributes,  Up: C Extensions
*************** File: gcc.info,  Node: Attribute Syntax,
*** 30045,30051 ****
  6.36 Attribute Syntax
  =====================
  
! This section describes the syntax with which `__attribute__' may be
  used, and the constructs to which attribute specifiers bind, for the C
  language.  Some details may vary for C++ and Objective-C.  Because of
  infelicities in the grammar for attributes, some forms described here
--- 29875,29881 ----
  6.36 Attribute Syntax
  =====================
  
! This section describes the syntax with which '__attribute__' may be
  used, and the constructs to which attribute specifiers bind, for the C
  language.  Some details may vary for C++ and Objective-C.  Because of
  infelicities in the grammar for attributes, some forms described here
*************** may not be successfully parsed in all ca
*** 30054,30061 ****
   There are some problems with the semantics of attributes in C++.  For
  example, there are no manglings for attributes, although they may affect
  code generation, so problems may arise when attributed types are used in
! conjunction with templates or overloading.  Similarly, `typeid' does
! not distinguish between types with different attributes.  Support for
  attributes in C++ may be restricted in future to attributes on
  declarations only, but not on nested declarators.
  
--- 29884,29891 ----
   There are some problems with the semantics of attributes in C++.  For
  example, there are no manglings for attributes, although they may affect
  code generation, so problems may arise when attributed types are used in
! conjunction with templates or overloading.  Similarly, 'typeid' does not
! distinguish between types with different attributes.  Support for
  attributes in C++ may be restricted in future to attributes on
  declarations only, but not on nested declarators.
  
*************** semantics of attributes applying to labe
*** 30068,30134 ****
  Attributes::, for details of the semantics of attributes applying to
  enumerators.
  
!  An "attribute specifier" is of the form `__attribute__
  ((ATTRIBUTE-LIST))'.  An "attribute list" is a possibly empty
! comma-separated sequence of "attributes", where each attribute is one
! of the following:
  
     * Empty.  Empty attributes are ignored.
  
!    * An attribute name (which may be an identifier such as `unused', or
!      a reserved word such as `const').
  
     * An attribute name followed by a parenthesized list of parameters
       for the attribute.  These parameters take one of the following
       forms:
  
!         * An identifier.  For example, `mode' attributes use this form.
  
          * An identifier followed by a comma and a non-empty
!           comma-separated list of expressions.  For example, `format'
            attributes use this form.
  
          * A possibly empty comma-separated list of expressions.  For
!           example, `format_arg' attributes use this form with the list
!           being a single integer constant expression, and `alias'
            attributes use this form with the list being a single string
            constant.
  
   An "attribute specifier list" is a sequence of one or more attribute
  specifiers, not separated by any other tokens.
  
!  You may optionally specify attribute names with `__' preceding and
  following the name.  This allows you to use them in header files without
  being concerned about a possible macro of the same name.  For example,
! you may use the attribute name `__noreturn__' instead of `noreturn'.
  
  Label Attributes
  ................
  
  In GNU C, an attribute specifier list may appear after the colon
! following a label, other than a `case' or `default' label.  GNU C++
! only permits attributes on labels if the attribute specifier is
! immediately followed by a semicolon (i.e., the label applies to an empty
! statement).  If the semicolon is missing, C++ label attributes are
! ambiguous, as it is permissible for a declaration, which could begin
! with an attribute list, to be labelled in C++.  Declarations cannot be
! labelled in C90 or C99, so the ambiguity does not arise there.
  
  Enumerator Attributes
  .....................
  
  In GNU C, an attribute specifier list may appear as part of an
  enumerator.  The attribute goes after the enumeration constant, before
! `=', if present.  The optional attribute in the enumerator appertains
! to the enumeration constant.  It is not possible to place the attribute
  after the constant expression, if present.
  
  Type Attributes
  ...............
  
! An attribute specifier list may appear as part of a `struct', `union'
! or `enum' specifier.  It may go either immediately after the `struct',
! `union' or `enum' keyword, or after the closing brace.  The former
  syntax is preferred.  Where attribute specifiers follow the closing
  brace, they are considered to relate to the structure, union or
  enumerated type defined, not to any enclosing declaration the type
--- 29898,29964 ----
  Attributes::, for details of the semantics of attributes applying to
  enumerators.
  
!  An "attribute specifier" is of the form '__attribute__
  ((ATTRIBUTE-LIST))'.  An "attribute list" is a possibly empty
! comma-separated sequence of "attributes", where each attribute is one of
! the following:
  
     * Empty.  Empty attributes are ignored.
  
!    * An attribute name (which may be an identifier such as 'unused', or
!      a reserved word such as 'const').
  
     * An attribute name followed by a parenthesized list of parameters
       for the attribute.  These parameters take one of the following
       forms:
  
!         * An identifier.  For example, 'mode' attributes use this form.
  
          * An identifier followed by a comma and a non-empty
!           comma-separated list of expressions.  For example, 'format'
            attributes use this form.
  
          * A possibly empty comma-separated list of expressions.  For
!           example, 'format_arg' attributes use this form with the list
!           being a single integer constant expression, and 'alias'
            attributes use this form with the list being a single string
            constant.
  
   An "attribute specifier list" is a sequence of one or more attribute
  specifiers, not separated by any other tokens.
  
!  You may optionally specify attribute names with '__' preceding and
  following the name.  This allows you to use them in header files without
  being concerned about a possible macro of the same name.  For example,
! you may use the attribute name '__noreturn__' instead of 'noreturn'.
  
  Label Attributes
  ................
  
  In GNU C, an attribute specifier list may appear after the colon
! following a label, other than a 'case' or 'default' label.  GNU C++ only
! permits attributes on labels if the attribute specifier is immediately
! followed by a semicolon (i.e., the label applies to an empty statement).
! If the semicolon is missing, C++ label attributes are ambiguous, as it
! is permissible for a declaration, which could begin with an attribute
! list, to be labelled in C++.  Declarations cannot be labelled in C90 or
! C99, so the ambiguity does not arise there.
  
  Enumerator Attributes
  .....................
  
  In GNU C, an attribute specifier list may appear as part of an
  enumerator.  The attribute goes after the enumeration constant, before
! '=', if present.  The optional attribute in the enumerator appertains to
! the enumeration constant.  It is not possible to place the attribute
  after the constant expression, if present.
  
  Type Attributes
  ...............
  
! An attribute specifier list may appear as part of a 'struct', 'union' or
! 'enum' specifier.  It may go either immediately after the 'struct',
! 'union' or 'enum' keyword, or after the closing brace.  The former
  syntax is preferred.  Where attribute specifiers follow the closing
  brace, they are considered to relate to the structure, union or
  enumerated type defined, not to any enclosing declaration the type
*************** contain attribute specifiers, whether or
*** 30153,30173 ****
  context contain storage class specifiers.  (Some attributes, however,
  are essentially in the nature of storage class specifiers, and only make
  sense where storage class specifiers may be used; for example,
! `section'.)  There is one necessary limitation to this syntax: the
! first old-style parameter declaration in a function definition cannot
! begin with an attribute specifier, because such an attribute applies to
! the function instead by syntax described below (which, however, is not
! yet implemented in this case).  In some other cases, attribute
! specifiers are permitted by this grammar but not yet supported by the
! compiler.  All attribute specifiers in this place relate to the
! declaration as a whole.  In the obsolescent usage where a type of `int'
! is implied by the absence of type specifiers, such a list of specifiers
! and qualifiers may be an attribute specifier list with no other
! specifiers or qualifiers.
  
   At present, the first parameter in a function prototype must have some
  type specifier that is not an attribute specifier; this resolves an
! ambiguity in the interpretation of `void f(int (__attribute__((foo))
  x))', but is subject to change.  At present, if the parentheses of a
  function declarator contain only attributes then those attributes are
  ignored, rather than yielding an error or warning or implying a single
--- 29983,30002 ----
  context contain storage class specifiers.  (Some attributes, however,
  are essentially in the nature of storage class specifiers, and only make
  sense where storage class specifiers may be used; for example,
! 'section'.)  There is one necessary limitation to this syntax: the first
! old-style parameter declaration in a function definition cannot begin
! with an attribute specifier, because such an attribute applies to the
! function instead by syntax described below (which, however, is not yet
! implemented in this case).  In some other cases, attribute specifiers
! are permitted by this grammar but not yet supported by the compiler.
! All attribute specifiers in this place relate to the declaration as a
! whole.  In the obsolescent usage where a type of 'int' is implied by the
! absence of type specifiers, such a list of specifiers and qualifiers may
! be an attribute specifier list with no other specifiers or qualifiers.
  
   At present, the first parameter in a function prototype must have some
  type specifier that is not an attribute specifier; this resolves an
! ambiguity in the interpretation of 'void f(int (__attribute__((foo))
  x))', but is subject to change.  At present, if the parentheses of a
  function declarator contain only attributes then those attributes are
  ignored, rather than yielding an error or warning or implying a single
*************** identifier before whose declarator they
*** 30183,30204 ****
           __attribute__((format(printf, 1, 2))) d1 (const char *, ...),
            d2 (void);
  
! the `noreturn' attribute applies to all the functions declared; the
! `format' attribute only applies to `d1'.
  
   An attribute specifier list may appear immediately before the comma,
! `=' or semicolon terminating the declaration of an identifier other
! than a function definition.  Such attribute specifiers apply to the
! declared object or function.  Where an assembler name for an object or
! function is specified (*note Asm Labels::), the attribute must follow
! the `asm' specification.
  
   An attribute specifier list may, in future, be permitted to appear
  after the declarator in a function definition (before any old-style
  parameter declarations or the function body).
  
   Attribute specifiers may be mixed with type qualifiers appearing inside
! the `[]' of a parameter array declarator, in the C99 construct by which
  such qualifiers are applied to the pointer to which the array is
  implicitly converted.  Such attribute specifiers apply to the pointer,
  not to the array, but at present this is not implemented and they are
--- 30012,30033 ----
           __attribute__((format(printf, 1, 2))) d1 (const char *, ...),
            d2 (void);
  
! the 'noreturn' attribute applies to all the functions declared; the
! 'format' attribute only applies to 'd1'.
  
   An attribute specifier list may appear immediately before the comma,
! '=' or semicolon terminating the declaration of an identifier other than
! a function definition.  Such attribute specifiers apply to the declared
! object or function.  Where an assembler name for an object or function
! is specified (*note Asm Labels::), the attribute must follow the 'asm'
! specification.
  
   An attribute specifier list may, in future, be permitted to appear
  after the declarator in a function definition (before any old-style
  parameter declarations or the function body).
  
   Attribute specifiers may be mixed with type qualifiers appearing inside
! the '[]' of a parameter array declarator, in the C99 construct by which
  such qualifiers are applied to the pointer to which the array is
  implicitly converted.  Such attribute specifiers apply to the pointer,
  not to the array, but at present this is not implemented and they are
*************** ignored.
*** 30208,30234 ****
  declarator.  At present, there are some limitations in this usage: the
  attributes correctly apply to the declarator, but for most individual
  attributes the semantics this implies are not implemented.  When
! attribute specifiers follow the `*' of a pointer declarator, they may
! be mixed with any type qualifiers present.  The following describes the
  formal semantics of this syntax.  It makes the most sense if you are
  familiar with the formal specification of declarators in the ISO C
  standard.
  
!  Consider (as in C99 subclause 6.7.5 paragraph 4) a declaration `T D1',
! where `T' contains declaration specifiers that specify a type TYPE
! (such as `int') and `D1' is a declarator that contains an identifier
! IDENT.  The type specified for IDENT for derived declarators whose type
! does not include an attribute specifier is as in the ISO C standard.
  
!  If `D1' has the form `( ATTRIBUTE-SPECIFIER-LIST D )', and the
! declaration `T D' specifies the type "DERIVED-DECLARATOR-TYPE-LIST
! TYPE" for IDENT, then `T D1' specifies the type
! "DERIVED-DECLARATOR-TYPE-LIST ATTRIBUTE-SPECIFIER-LIST TYPE" for IDENT.
  
!  If `D1' has the form `* TYPE-QUALIFIER-AND-ATTRIBUTE-SPECIFIER-LIST
! D', and the declaration `T D' specifies the type
! "DERIVED-DECLARATOR-TYPE-LIST TYPE" for IDENT, then `T D1' specifies
! the type "DERIVED-DECLARATOR-TYPE-LIST
  TYPE-QUALIFIER-AND-ATTRIBUTE-SPECIFIER-LIST pointer to TYPE" for IDENT.
  
   For example,
--- 30037,30063 ----
  declarator.  At present, there are some limitations in this usage: the
  attributes correctly apply to the declarator, but for most individual
  attributes the semantics this implies are not implemented.  When
! attribute specifiers follow the '*' of a pointer declarator, they may be
! mixed with any type qualifiers present.  The following describes the
  formal semantics of this syntax.  It makes the most sense if you are
  familiar with the formal specification of declarators in the ISO C
  standard.
  
!  Consider (as in C99 subclause 6.7.5 paragraph 4) a declaration 'T D1',
! where 'T' contains declaration specifiers that specify a type TYPE (such
! as 'int') and 'D1' is a declarator that contains an identifier IDENT.
! The type specified for IDENT for derived declarators whose type does not
! include an attribute specifier is as in the ISO C standard.
  
!  If 'D1' has the form '( ATTRIBUTE-SPECIFIER-LIST D )', and the
! declaration 'T D' specifies the type "DERIVED-DECLARATOR-TYPE-LIST TYPE"
! for IDENT, then 'T D1' specifies the type "DERIVED-DECLARATOR-TYPE-LIST
! ATTRIBUTE-SPECIFIER-LIST TYPE" for IDENT.
  
!  If 'D1' has the form '* TYPE-QUALIFIER-AND-ATTRIBUTE-SPECIFIER-LIST D',
! and the declaration 'T D' specifies the type
! "DERIVED-DECLARATOR-TYPE-LIST TYPE" for IDENT, then 'T D1' specifies the
! type "DERIVED-DECLARATOR-TYPE-LIST
  TYPE-QUALIFIER-AND-ATTRIBUTE-SPECIFIER-LIST pointer to TYPE" for IDENT.
  
   For example,
*************** TYPE-QUALIFIER-AND-ATTRIBUTE-SPECIFIER-L
*** 30236,30248 ****
       void (__attribute__((noreturn)) ****f) (void);
  
  specifies the type "pointer to pointer to pointer to pointer to
! non-returning function returning `void'".  As another example,
  
       char *__attribute__((aligned(8))) *f;
  
! specifies the type "pointer to 8-byte-aligned pointer to `char'".  Note
  again that this does not work with most attributes; for example, the
! usage of `aligned' and `noreturn' attributes given above is not yet
  supported.
  
   For compatibility with existing code written for compiler versions that
--- 30065,30077 ----
       void (__attribute__((noreturn)) ****f) (void);
  
  specifies the type "pointer to pointer to pointer to pointer to
! non-returning function returning 'void'".  As another example,
  
       char *__attribute__((aligned(8))) *f;
  
! specifies the type "pointer to 8-byte-aligned pointer to 'char'".  Note
  again that this does not work with most attributes; for example, the
! usage of 'aligned' and 'noreturn' attributes given above is not yet
  supported.
  
   For compatibility with existing code written for compiler versions that
*************** the attributes immediately before the id
*** 30256,30263 ****
  attribute applied to a function return type is treated as applying to
  the function type, and such an attribute applied to an array element
  type is treated as applying to the array type.  If an attribute that
! only applies to function types is applied to a pointer-to-function
! type, it is treated as applying to the pointer target type; if such an
  attribute is applied to a function return type that is not a
  pointer-to-function type, it is treated as applying to the function
  type.
--- 30085,30092 ----
  attribute applied to a function return type is treated as applying to
  the function type, and such an attribute applied to an array element
  type is treated as applying to the array type.  If an attribute that
! only applies to function types is applied to a pointer-to-function type,
! it is treated as applying to the pointer target type; if such an
  attribute is applied to a function return type that is not a
  pointer-to-function type, it is treated as applying to the function
  type.
*************** old-style non-prototype definition.  Con
*** 30289,30309 ****
         return x == 0;
       }
  
!  Suppose the type `uid_t' happens to be `short'.  ISO C does not allow
  this example, because subword arguments in old-style non-prototype
  definitions are promoted.  Therefore in this example the function
! definition's argument is really an `int', which does not match the
! prototype argument type of `short'.
  
   This restriction of ISO C makes it hard to write code that is portable
! to traditional C compilers, because the programmer does not know
! whether the `uid_t' type is `short', `int', or `long'.  Therefore, in
! cases like these GNU C allows a prototype to override a later old-style
! definition.  More precisely, in GNU C, a function prototype argument
! type overrides the argument type specified by a later old-style
! definition if the former type is the same as the latter type before
! promotion.  Thus in GNU C the above example is equivalent to the
! following:
  
       int isroot (uid_t);
  
--- 30118,30137 ----
         return x == 0;
       }
  
!  Suppose the type 'uid_t' happens to be 'short'.  ISO C does not allow
  this example, because subword arguments in old-style non-prototype
  definitions are promoted.  Therefore in this example the function
! definition's argument is really an 'int', which does not match the
! prototype argument type of 'short'.
  
   This restriction of ISO C makes it hard to write code that is portable
! to traditional C compilers, because the programmer does not know whether
! the 'uid_t' type is 'short', 'int', or 'long'.  Therefore, in cases like
! these GNU C allows a prototype to override a later old-style definition.
! More precisely, in GNU C, a function prototype argument type overrides
! the argument type specified by a later old-style definition if the
! former type is the same as the latter type before promotion.  Thus in
! GNU C the above example is equivalent to the following:
  
       int isroot (uid_t);
  
*************** File: gcc.info,  Node: C++ Comments,  Ne
*** 30322,30333 ****
  6.38 C++ Style Comments
  =======================
  
! In GNU C, you may use C++ style comments, which start with `//' and
  continue until the end of the line.  Many other C implementations allow
  such comments, and they are included in the 1999 C standard.  However,
! C++ style comments are not recognized if you specify an `-std' option
! specifying a version of ISO C before C99, or `-ansi' (equivalent to
! `-std=c90').
  
  
  File: gcc.info,  Node: Dollar Signs,  Next: Character Escapes,  Prev: C++ Comments,  Up: C Extensions
--- 30150,30161 ----
  6.38 C++ Style Comments
  =======================
  
! In GNU C, you may use C++ style comments, which start with '//' and
  continue until the end of the line.  Many other C implementations allow
  such comments, and they are included in the 1999 C standard.  However,
! C++ style comments are not recognized if you specify an '-std' option
! specifying a version of ISO C before C99, or '-ansi' (equivalent to
! '-std=c90').
  
  
  File: gcc.info,  Node: Dollar Signs,  Next: Character Escapes,  Prev: C++ Comments,  Up: C Extensions
*************** File: gcc.info,  Node: Character Escapes
*** 30346,30353 ****
  6.40 The Character <ESC> in Constants
  =====================================
  
! You can use the sequence `\e' in a string or character constant to
! stand for the ASCII character <ESC>.
  
  
  File: gcc.info,  Node: Alignment,  Next: Inline,  Prev: Character Escapes,  Up: C Extensions
--- 30174,30181 ----
  6.40 The Character <ESC> in Constants
  =====================================
  
! You can use the sequence '\e' in a string or character constant to stand
! for the ASCII character <ESC>.
  
  
  File: gcc.info,  Node: Alignment,  Next: Inline,  Prev: Character Escapes,  Up: C Extensions
*************** File: gcc.info,  Node: Alignment,  Next:
*** 30355,30383 ****
  6.41 Inquiring on Alignment of Types or Variables
  =================================================
  
! The keyword `__alignof__' allows you to inquire about how an object is
  aligned, or the minimum alignment usually required by a type.  Its
! syntax is just like `sizeof'.
  
!  For example, if the target machine requires a `double' value to be
! aligned on an 8-byte boundary, then `__alignof__ (double)' is 8.  This
  is true on many RISC machines.  On more traditional machine designs,
! `__alignof__ (double)' is 4 or even 2.
  
!  Some machines never actually require alignment; they allow reference
! to any data type even at an odd address.  For these machines,
! `__alignof__' reports the smallest alignment that GCC gives the data
! type, usually as mandated by the target ABI.
  
!  If the operand of `__alignof__' is an lvalue rather than a type, its
  value is the required alignment for its type, taking into account any
! minimum alignment specified with GCC's `__attribute__' extension (*note
  Variable Attributes::).  For example, after this declaration:
  
       struct foo { int x; char y; } foo1;
  
! the value of `__alignof__ (foo1.y)' is 1, even though its actual
! alignment is probably 2 or 4, the same as `__alignof__ (int)'.
  
   It is an error to ask for the alignment of an incomplete type.
  
--- 30183,30211 ----
  6.41 Inquiring on Alignment of Types or Variables
  =================================================
  
! The keyword '__alignof__' allows you to inquire about how an object is
  aligned, or the minimum alignment usually required by a type.  Its
! syntax is just like 'sizeof'.
  
!  For example, if the target machine requires a 'double' value to be
! aligned on an 8-byte boundary, then '__alignof__ (double)' is 8.  This
  is true on many RISC machines.  On more traditional machine designs,
! '__alignof__ (double)' is 4 or even 2.
  
!  Some machines never actually require alignment; they allow reference to
! any data type even at an odd address.  For these machines, '__alignof__'
! reports the smallest alignment that GCC gives the data type, usually as
! mandated by the target ABI.
  
!  If the operand of '__alignof__' is an lvalue rather than a type, its
  value is the required alignment for its type, taking into account any
! minimum alignment specified with GCC's '__attribute__' extension (*note
  Variable Attributes::).  For example, after this declaration:
  
       struct foo { int x; char y; } foo1;
  
! the value of '__alignof__ (foo1.y)' is 1, even though its actual
! alignment is probably 2 or 4, the same as '__alignof__ (int)'.
  
   It is an error to ask for the alignment of an incomplete type.
  
*************** File: gcc.info,  Node: Inline,  Next: Vo
*** 30387,30411 ****
  6.42 An Inline Function is As Fast As a Macro
  =============================================
  
! By declaring a function inline, you can direct GCC to make calls to
! that function faster.  One way GCC can achieve this is to integrate
! that function's code into the code for its callers.  This makes
! execution faster by eliminating the function-call overhead; in
! addition, if any of the actual argument values are constant, their
! known values may permit simplifications at compile time so that not all
! of the inline function's code needs to be included.  The effect on code
! size is less predictable; object code may be larger or smaller with
! function inlining, depending on the particular case.  You can also
! direct GCC to try to integrate all "simple enough" functions into their
! callers with the option `-finline-functions'.
  
   GCC implements three different semantics of declaring a function
! inline.  One is available with `-std=gnu89' or `-fgnu89-inline' or when
! `gnu_inline' attribute is present on all inline declarations, another
! when `-std=c99', `-std=c11', `-std=gnu99' or `-std=gnu11' (without
! `-fgnu89-inline'), and the third is used when compiling C++.
  
!  To declare a function inline, use the `inline' keyword in its
  declaration, like this:
  
       static inline int
--- 30215,30239 ----
  6.42 An Inline Function is As Fast As a Macro
  =============================================
  
! By declaring a function inline, you can direct GCC to make calls to that
! function faster.  One way GCC can achieve this is to integrate that
! function's code into the code for its callers.  This makes execution
! faster by eliminating the function-call overhead; in addition, if any of
! the actual argument values are constant, their known values may permit
! simplifications at compile time so that not all of the inline function's
! code needs to be included.  The effect on code size is less predictable;
! object code may be larger or smaller with function inlining, depending
! on the particular case.  You can also direct GCC to try to integrate all
! "simple enough" functions into their callers with the option
! '-finline-functions'.
  
   GCC implements three different semantics of declaring a function
! inline.  One is available with '-std=gnu89' or '-fgnu89-inline' or when
! 'gnu_inline' attribute is present on all inline declarations, another
! when '-std=c99', '-std=c11', '-std=gnu99' or '-std=gnu11' (without
! '-fgnu89-inline'), and the third is used when compiling C++.
  
!  To declare a function inline, use the 'inline' keyword in its
  declaration, like this:
  
       static inline int
*************** declaration, like this:
*** 30415,30426 ****
       }
  
   If you are writing a header file to be included in ISO C90 programs,
! write `__inline__' instead of `inline'.  *Note Alternate Keywords::.
  
   The three types of inlining behave similarly in two important cases:
! when the `inline' keyword is used on a `static' function, like the
  example above, and when a function is first declared without using the
! `inline' keyword and then is defined with `inline', like this:
  
       extern int inc (int *a);
       inline int
--- 30243,30254 ----
       }
  
   If you are writing a header file to be included in ISO C90 programs,
! write '__inline__' instead of 'inline'.  *Note Alternate Keywords::.
  
   The three types of inlining behave similarly in two important cases:
! when the 'inline' keyword is used on a 'static' function, like the
  example above, and when a function is first declared without using the
! 'inline' keyword and then is defined with 'inline', like this:
  
       extern int inc (int *a);
       inline int
*************** example above, and when a function is fi
*** 30430,30487 ****
       }
  
   In both of these common cases, the program behaves the same as if you
! had not used the `inline' keyword, except for its speed.
  
!  When a function is both inline and `static', if all calls to the
  function are integrated into the caller, and the function's address is
  never used, then the function's own assembler code is never referenced.
  In this case, GCC does not actually output assembler code for the
! function, unless you specify the option `-fkeep-inline-functions'.  If
  there is a nonintegrated call, then the function is compiled to
  assembler code as usual.  The function must also be compiled as usual if
  the program refers to its address, because that can't be inlined.
  
   Note that certain usages in a function definition can make it
  unsuitable for inline substitution.  Among these usages are: variadic
! functions, use of `alloca', use of computed goto (*note Labels as
  Values::), use of nonlocal goto, use of nested functions, use of
! `setjmp', use of `__builtin_longjmp' and use of `__builtin_return' or
! `__builtin_apply_args'.  Using `-Winline' warns when a function marked
! `inline' could not be substituted, and gives the reason for the failure.
  
   As required by ISO C++, GCC considers member functions defined within
  the body of a class to be marked inline even if they are not explicitly
! declared with the `inline' keyword.  You can override this with
! `-fno-default-inline'; *note Options Controlling C++ Dialect: C++
  Dialect Options.
  
   GCC does not inline any functions when not optimizing unless you
! specify the `always_inline' attribute for the function, like this:
  
       /* Prototype.  */
       inline void foo (const char) __attribute__((always_inline));
  
   The remainder of this section is specific to GNU C90 inlining.
  
!  When an inline function is not `static', then the compiler must assume
  that there may be calls from other source files; since a global symbol
  can be defined only once in any program, the function must not be
  defined in the other source files, so the calls therein cannot be
! integrated.  Therefore, a non-`static' inline function is always
  compiled on its own in the usual fashion.
  
!  If you specify both `inline' and `extern' in the function definition,
  then the definition is used only for inlining.  In no case is the
  function compiled on its own, not even if you refer to its address
  explicitly.  Such an address becomes an external reference, as if you
  had only declared the function, and had not defined it.
  
!  This combination of `inline' and `extern' has almost the effect of a
  macro.  The way to use it is to put a function definition in a header
  file with these keywords, and put another copy of the definition
! (lacking `inline' and `extern') in a library file.  The definition in
! the header file causes most calls to the function to be inlined.  If
! any uses of the function remain, they refer to the single copy in the
  library.
  
  
--- 30258,30315 ----
       }
  
   In both of these common cases, the program behaves the same as if you
! had not used the 'inline' keyword, except for its speed.
  
!  When a function is both inline and 'static', if all calls to the
  function are integrated into the caller, and the function's address is
  never used, then the function's own assembler code is never referenced.
  In this case, GCC does not actually output assembler code for the
! function, unless you specify the option '-fkeep-inline-functions'.  If
  there is a nonintegrated call, then the function is compiled to
  assembler code as usual.  The function must also be compiled as usual if
  the program refers to its address, because that can't be inlined.
  
   Note that certain usages in a function definition can make it
  unsuitable for inline substitution.  Among these usages are: variadic
! functions, use of 'alloca', use of computed goto (*note Labels as
  Values::), use of nonlocal goto, use of nested functions, use of
! 'setjmp', use of '__builtin_longjmp' and use of '__builtin_return' or
! '__builtin_apply_args'.  Using '-Winline' warns when a function marked
! 'inline' could not be substituted, and gives the reason for the failure.
  
   As required by ISO C++, GCC considers member functions defined within
  the body of a class to be marked inline even if they are not explicitly
! declared with the 'inline' keyword.  You can override this with
! '-fno-default-inline'; *note Options Controlling C++ Dialect: C++
  Dialect Options.
  
   GCC does not inline any functions when not optimizing unless you
! specify the 'always_inline' attribute for the function, like this:
  
       /* Prototype.  */
       inline void foo (const char) __attribute__((always_inline));
  
   The remainder of this section is specific to GNU C90 inlining.
  
!  When an inline function is not 'static', then the compiler must assume
  that there may be calls from other source files; since a global symbol
  can be defined only once in any program, the function must not be
  defined in the other source files, so the calls therein cannot be
! integrated.  Therefore, a non-'static' inline function is always
  compiled on its own in the usual fashion.
  
!  If you specify both 'inline' and 'extern' in the function definition,
  then the definition is used only for inlining.  In no case is the
  function compiled on its own, not even if you refer to its address
  explicitly.  Such an address becomes an external reference, as if you
  had only declared the function, and had not defined it.
  
!  This combination of 'inline' and 'extern' has almost the effect of a
  macro.  The way to use it is to put a function definition in a header
  file with these keywords, and put another copy of the definition
! (lacking 'inline' and 'extern') in a library file.  The definition in
! the header file causes most calls to the function to be inlined.  If any
! uses of the function remain, they refer to the single copy in the
  library.
  
  
*************** allow you to violate the restriction on
*** 30504,30521 ****
  between two sequence points.
  
   Accesses to non-volatile objects are not ordered with respect to
! volatile accesses.  You cannot use a volatile object as a memory
! barrier to order a sequence of writes to non-volatile memory.  For
! instance:
  
       int *ptr = SOMETHING;
       volatile int vobj;
       *ptr = SOMETHING;
       vobj = 1;
  
! Unless *PTR and VOBJ can be aliased, it is not guaranteed that the
! write to *PTR occurs by the time the update of VOBJ happens.  If you
! need this guarantee, you must use a stronger memory barrier such as:
  
       int *ptr = SOMETHING;
       volatile int vobj;
--- 30332,30348 ----
  between two sequence points.
  
   Accesses to non-volatile objects are not ordered with respect to
! volatile accesses.  You cannot use a volatile object as a memory barrier
! to order a sequence of writes to non-volatile memory.  For instance:
  
       int *ptr = SOMETHING;
       volatile int vobj;
       *ptr = SOMETHING;
       vobj = 1;
  
! Unless *PTR and VOBJ can be aliased, it is not guaranteed that the write
! to *PTR occurs by the time the update of VOBJ happens.  If you need this
! guarantee, you must use a stronger memory barrier such as:
  
       int *ptr = SOMETHING;
       volatile int vobj;
*************** volatile object being pointed to.
*** 30533,30541 ****
  
   Assignments are also expressions and have an rvalue.  However when
  assigning to a scalar volatile, the volatile object is not reread,
! regardless of whether the assignment expression's rvalue is used or
! not.  If the assignment's rvalue is used, the value is that assigned to
! the volatile object.  For instance, there is no read of VOBJ in all the
  following cases:
  
       int obj;
--- 30360,30368 ----
  
   Assignments are also expressions and have an rvalue.  However when
  assigning to a scalar volatile, the volatile object is not reread,
! regardless of whether the assignment expression's rvalue is used or not.
! If the assignment's rvalue is used, the value is that assigned to the
! volatile object.  For instance, there is no read of VOBJ in all the
  following cases:
  
       int obj;
*************** File: gcc.info,  Node: Using Assembly La
*** 30562,30587 ****
  6.44 How to Use Inline Assembly Language in C Code
  ==================================================
  
! The `asm' keyword allows you to embed assembler instructions within C
! code.  GCC provides two forms of inline `asm' statements.  A "basic
! `asm'" statement is one with no operands (*note Basic Asm::), while an
! "extended `asm'" statement (*note Extended Asm::) includes one or more
  operands.  The extended form is preferred for mixing C and assembly
  language within a function, but to include assembly language at top
! level you must use basic `asm'.
  
!  You can also use the `asm' keyword to override the assembler name for
! a C symbol, or to place a C variable in a specific register.
  
  * Menu:
  
  * Basic Asm::          Inline assembler without operands.
  * Extended Asm::       Inline assembler with operands.
! * Constraints::        Constraints for `asm' operands
  * Asm Labels::         Specifying the assembler name to use for a C symbol.
  * Explicit Register Variables::  Defining variables residing in specified
                         registers.
! * Size of an asm::     How GCC calculates the size of an `asm' block.
  
  
  File: gcc.info,  Node: Basic Asm,  Next: Extended Asm,  Up: Using Assembly Language with C
--- 30389,30414 ----
  6.44 How to Use Inline Assembly Language in C Code
  ==================================================
  
! The 'asm' keyword allows you to embed assembler instructions within C
! code.  GCC provides two forms of inline 'asm' statements.  A "basic
! 'asm'" statement is one with no operands (*note Basic Asm::), while an
! "extended 'asm'" statement (*note Extended Asm::) includes one or more
  operands.  The extended form is preferred for mixing C and assembly
  language within a function, but to include assembly language at top
! level you must use basic 'asm'.
  
!  You can also use the 'asm' keyword to override the assembler name for a
! C symbol, or to place a C variable in a specific register.
  
  * Menu:
  
  * Basic Asm::          Inline assembler without operands.
  * Extended Asm::       Inline assembler with operands.
! * Constraints::        Constraints for 'asm' operands
  * Asm Labels::         Specifying the assembler name to use for a C symbol.
  * Explicit Register Variables::  Defining variables residing in specified
                         registers.
! * Size of an asm::     How GCC calculates the size of an 'asm' block.
  
  
  File: gcc.info,  Node: Basic Asm,  Next: Extended Asm,  Up: Using Assembly Language with C
*************** File: gcc.info,  Node: Basic Asm,  Next:
*** 30589,30696 ****
  6.44.1 Basic Asm -- Assembler Instructions Without Operands
  -----------------------------------------------------------
  
! A basic `asm' statement has the following syntax:
  
       asm [ volatile ] ( ASSEMBLERINSTRUCTIONS )
  
!  The `asm' keyword is a GNU extension.  When writing code that can be
! compiled with `-ansi' and the various `-std' options, use `__asm__'
! instead of `asm' (*note Alternate Keywords::).
  
  Qualifiers
  ..........
  
! `volatile'
!      The optional `volatile' qualifier has no effect.  All basic `asm'
       blocks are implicitly volatile.
  
  Parameters
  ..........
  
  ASSEMBLERINSTRUCTIONS
!      This is a literal string that specifies the assembler code. The
       string can contain any instructions recognized by the assembler,
       including directives.  GCC does not parse the assembler
       instructions themselves and does not know what they mean or even
       whether they are valid assembler input.
  
       You may place multiple assembler instructions together in a single
!      `asm' string, separated by the characters normally used in
!      assembly code for the system. A combination that works in most
!      places is a newline to break the line, plus a tab character
!      (written as `\n\t').  Some assemblers allow semicolons as a line
!      separator. However, note that some assembler dialects use
!      semicolons to start a comment.
  
  Remarks
  .......
  
! Using extended `asm' (*note Extended Asm::) typically produces smaller,
  safer, and more efficient code, and in most cases it is a better
! solution than basic `asm'.  However, there are two situations where
! only basic `asm' can be used:
  
!    * Extended `asm' statements have to be inside a C function, so to
!      write inline assembly language at file scope ("top-level"),
!      outside of C functions, you must use basic `asm'.  You can use
!      this technique to emit assembler directives, define assembly
!      language macros that can be invoked elsewhere in the file, or
!      write entire functions in assembly language.
  
!    * Functions declared with the `naked' attribute also require basic
!      `asm' (*note Function Attributes::).
  
!  Safely accessing C data and calling functions from basic `asm' is more
! complex than it may appear. To access C data, it is better to use
! extended `asm'.
  
!  Do not expect a sequence of `asm' statements to remain perfectly
! consecutive after compilation. If certain instructions need to remain
! consecutive in the output, put them in a single multi-instruction `asm'
! statement. Note that GCC's optimizers can move `asm' statements
  relative to other code, including across jumps.
  
!  `asm' statements may not perform jumps into other `asm' statements.
  GCC does not know about these jumps, and therefore cannot take account
! of them when deciding how to optimize. Jumps from `asm' to C labels are
! only supported in extended `asm'.
  
   Under certain circumstances, GCC may duplicate (or remove duplicates
! of) your assembly code when optimizing. This can lead to unexpected
! duplicate symbol errors during compilation if your assembly code
! defines symbols or labels.
  
!  *Warning:* The C standards do not specify semantics for `asm', making
  it a potential source of incompatibilities between compilers.  These
  incompatibilities may not produce compiler warnings/errors.
  
!  GCC does not parse basic `asm''s ASSEMBLERINSTRUCTIONS, which means
  there is no way to communicate to the compiler what is happening inside
! them.  GCC has no visibility of symbols in the `asm' and may discard
  them as unreferenced.  It also does not know about side effects of the
  assembler code, such as modifications to memory or registers.  Unlike
  some compilers, GCC assumes that no changes to either memory or
  registers occur.  This assumption may change in a future release.
  
   To avoid complications from future changes to the semantics and the
! compatibility issues between compilers, consider replacing basic `asm'
! with extended `asm'.  See How to convert from basic asm to extended asm
  (https://gcc.gnu.org/wiki/ConvertBasicAsmToExtended) for information
  about how to perform this conversion.
  
!  The compiler copies the assembler instructions in a basic `asm'
  verbatim to the assembly language output file, without processing
! dialects or any of the `%' operators that are available with extended
! `asm'. This results in minor differences between basic `asm' strings
! and extended `asm' templates. For example, to refer to registers you
! might use `%eax' in basic `asm' and `%%eax' in extended `asm'.
  
   On targets such as x86 that support multiple assembler dialects, all
! basic `asm' blocks use the assembler dialect specified by the `-masm'
! command-line option (*note x86 Options::).  Basic `asm' provides no
  mechanism to provide different assembler strings for different dialects.
  
!  Here is an example of basic `asm' for i386:
  
       /* Note that this code will not compile with -masm=intel */
       #define DebugBreak() asm("int $3")
--- 30416,30523 ----
  6.44.1 Basic Asm -- Assembler Instructions Without Operands
  -----------------------------------------------------------
  
! A basic 'asm' statement has the following syntax:
  
       asm [ volatile ] ( ASSEMBLERINSTRUCTIONS )
  
!  The 'asm' keyword is a GNU extension.  When writing code that can be
! compiled with '-ansi' and the various '-std' options, use '__asm__'
! instead of 'asm' (*note Alternate Keywords::).
  
  Qualifiers
  ..........
  
! 'volatile'
!      The optional 'volatile' qualifier has no effect.  All basic 'asm'
       blocks are implicitly volatile.
  
  Parameters
  ..........
  
  ASSEMBLERINSTRUCTIONS
!      This is a literal string that specifies the assembler code.  The
       string can contain any instructions recognized by the assembler,
       including directives.  GCC does not parse the assembler
       instructions themselves and does not know what they mean or even
       whether they are valid assembler input.
  
       You may place multiple assembler instructions together in a single
!      'asm' string, separated by the characters normally used in assembly
!      code for the system.  A combination that works in most places is a
!      newline to break the line, plus a tab character (written as
!      '\n\t').  Some assemblers allow semicolons as a line separator.
!      However, note that some assembler dialects use semicolons to start
!      a comment.
  
  Remarks
  .......
  
! Using extended 'asm' (*note Extended Asm::) typically produces smaller,
  safer, and more efficient code, and in most cases it is a better
! solution than basic 'asm'.  However, there are two situations where only
! basic 'asm' can be used:
  
!    * Extended 'asm' statements have to be inside a C function, so to
!      write inline assembly language at file scope ("top-level"), outside
!      of C functions, you must use basic 'asm'.  You can use this
!      technique to emit assembler directives, define assembly language
!      macros that can be invoked elsewhere in the file, or write entire
!      functions in assembly language.
  
!    * Functions declared with the 'naked' attribute also require basic
!      'asm' (*note Function Attributes::).
  
!  Safely accessing C data and calling functions from basic 'asm' is more
! complex than it may appear.  To access C data, it is better to use
! extended 'asm'.
  
!  Do not expect a sequence of 'asm' statements to remain perfectly
! consecutive after compilation.  If certain instructions need to remain
! consecutive in the output, put them in a single multi-instruction 'asm'
! statement.  Note that GCC's optimizers can move 'asm' statements
  relative to other code, including across jumps.
  
!  'asm' statements may not perform jumps into other 'asm' statements.
  GCC does not know about these jumps, and therefore cannot take account
! of them when deciding how to optimize.  Jumps from 'asm' to C labels are
! only supported in extended 'asm'.
  
   Under certain circumstances, GCC may duplicate (or remove duplicates
! of) your assembly code when optimizing.  This can lead to unexpected
! duplicate symbol errors during compilation if your assembly code defines
! symbols or labels.
  
!  *Warning:* The C standards do not specify semantics for 'asm', making
  it a potential source of incompatibilities between compilers.  These
  incompatibilities may not produce compiler warnings/errors.
  
!  GCC does not parse basic 'asm''s ASSEMBLERINSTRUCTIONS, which means
  there is no way to communicate to the compiler what is happening inside
! them.  GCC has no visibility of symbols in the 'asm' and may discard
  them as unreferenced.  It also does not know about side effects of the
  assembler code, such as modifications to memory or registers.  Unlike
  some compilers, GCC assumes that no changes to either memory or
  registers occur.  This assumption may change in a future release.
  
   To avoid complications from future changes to the semantics and the
! compatibility issues between compilers, consider replacing basic 'asm'
! with extended 'asm'.  See How to convert from basic asm to extended asm
  (https://gcc.gnu.org/wiki/ConvertBasicAsmToExtended) for information
  about how to perform this conversion.
  
!  The compiler copies the assembler instructions in a basic 'asm'
  verbatim to the assembly language output file, without processing
! dialects or any of the '%' operators that are available with extended
! 'asm'.  This results in minor differences between basic 'asm' strings
! and extended 'asm' templates.  For example, to refer to registers you
! might use '%eax' in basic 'asm' and '%%eax' in extended 'asm'.
  
   On targets such as x86 that support multiple assembler dialects, all
! basic 'asm' blocks use the assembler dialect specified by the '-masm'
! command-line option (*note x86 Options::).  Basic 'asm' provides no
  mechanism to provide different assembler strings for different dialects.
  
!  Here is an example of basic 'asm' for i386:
  
       /* Note that this code will not compile with -masm=intel */
       #define DebugBreak() asm("int $3")
*************** File: gcc.info,  Node: Extended Asm,  Ne
*** 30701,30709 ****
  6.44.2 Extended Asm - Assembler Instructions with C Expression Operands
  -----------------------------------------------------------------------
  
! With extended `asm' you can read and write C variables from assembler
! and perform jumps from assembler code to C labels.  Extended `asm'
! syntax uses colons (`:') to delimit the operand parameters after the
  assembler template:
  
       asm [volatile] ( ASSEMBLERTEMPLATE
--- 30528,30536 ----
  6.44.2 Extended Asm - Assembler Instructions with C Expression Operands
  -----------------------------------------------------------------------
  
! With extended 'asm' you can read and write C variables from assembler
! and perform jumps from assembler code to C labels.  Extended 'asm'
! syntax uses colons (':') to delimit the operand parameters after the
  assembler template:
  
       asm [volatile] ( ASSEMBLERTEMPLATE
*************** assembler template:
*** 30717,30738 ****
                             : CLOBBERS
                             : GOTOLABELS)
  
!  The `asm' keyword is a GNU extension.  When writing code that can be
! compiled with `-ansi' and the various `-std' options, use `__asm__'
! instead of `asm' (*note Alternate Keywords::).
  
  Qualifiers
  ..........
  
! `volatile'
!      The typical use of extended `asm' statements is to manipulate input
!      values to produce output values. However, your `asm' statements may
!      also produce side effects. If so, you may need to use the
!      `volatile' qualifier to disable certain optimizations. *Note
       Volatile::.
  
! `goto'
!      This qualifier informs the compiler that the `asm' statement may
       perform a jump to one of the labels listed in the GOTOLABELS.
       *Note GotoLabels::.
  
--- 30544,30565 ----
                             : CLOBBERS
                             : GOTOLABELS)
  
!  The 'asm' keyword is a GNU extension.  When writing code that can be
! compiled with '-ansi' and the various '-std' options, use '__asm__'
! instead of 'asm' (*note Alternate Keywords::).
  
  Qualifiers
  ..........
  
! 'volatile'
!      The typical use of extended 'asm' statements is to manipulate input
!      values to produce output values.  However, your 'asm' statements
!      may also produce side effects.  If so, you may need to use the
!      'volatile' qualifier to disable certain optimizations.  *Note
       Volatile::.
  
! 'goto'
!      This qualifier informs the compiler that the 'asm' statement may
       perform a jump to one of the labels listed in the GOTOLABELS.
       *Note GotoLabels::.
  
*************** Parameters
*** 30741,30757 ****
  
  ASSEMBLERTEMPLATE
       This is a literal string that is the template for the assembler
!      code. It is a combination of fixed text and tokens that refer to
!      the input, output, and goto parameters. *Note AssemblerTemplate::.
  
  OUTPUTOPERANDS
       A comma-separated list of the C variables modified by the
!      instructions in the ASSEMBLERTEMPLATE.  An empty list is
!      permitted.  *Note OutputOperands::.
  
  INPUTOPERANDS
!      A comma-separated list of C expressions read by the instructions
!      in the ASSEMBLERTEMPLATE.  An empty list is permitted.  *Note
       InputOperands::.
  
  CLOBBERS
--- 30568,30584 ----
  
  ASSEMBLERTEMPLATE
       This is a literal string that is the template for the assembler
!      code.  It is a combination of fixed text and tokens that refer to
!      the input, output, and goto parameters.  *Note AssemblerTemplate::.
  
  OUTPUTOPERANDS
       A comma-separated list of the C variables modified by the
!      instructions in the ASSEMBLERTEMPLATE.  An empty list is permitted.
!      *Note OutputOperands::.
  
  INPUTOPERANDS
!      A comma-separated list of C expressions read by the instructions in
!      the ASSEMBLERTEMPLATE.  An empty list is permitted.  *Note
       InputOperands::.
  
  CLOBBERS
*************** CLOBBERS
*** 30760,30770 ****
       is permitted.  *Note Clobbers::.
  
  GOTOLABELS
!      When you are using the `goto' form of `asm', this section contains
!      the list of all C labels to which the code in the
!      ASSEMBLERTEMPLATE may jump.  *Note GotoLabels::.
  
!      `asm' statements may not perform jumps into other `asm' statements,
       only to the listed GOTOLABELS.  GCC's optimizers do not know about
       other jumps; therefore they cannot take account of them when
       deciding how to optimize.
--- 30587,30597 ----
       is permitted.  *Note Clobbers::.
  
  GOTOLABELS
!      When you are using the 'goto' form of 'asm', this section contains
!      the list of all C labels to which the code in the ASSEMBLERTEMPLATE
!      may jump.  *Note GotoLabels::.
  
!      'asm' statements may not perform jumps into other 'asm' statements,
       only to the listed GOTOLABELS.  GCC's optimizers do not know about
       other jumps; therefore they cannot take account of them when
       deciding how to optimize.
*************** GOTOLABELS
*** 30774,30793 ****
  Remarks
  .......
  
! The `asm' statement allows you to include assembly instructions directly
! within C code. This may help you to maximize performance in
  time-sensitive code or to access assembly instructions that are not
  readily available to C programs.
  
!  Note that extended `asm' statements must be inside a function. Only
! basic `asm' may be outside functions (*note Basic Asm::).  Functions
! declared with the `naked' attribute also require basic `asm' (*note
  Function Attributes::).
  
!  While the uses of `asm' are many and varied, it may help to think of an
! `asm' statement as a series of low-level instructions that convert input
! parameters to output parameters. So a simple (if not particularly
! useful) example for i386 using `asm' might look like this:
  
       int src = 1;
       int dst;
--- 30601,30620 ----
  Remarks
  .......
  
! The 'asm' statement allows you to include assembly instructions directly
! within C code.  This may help you to maximize performance in
  time-sensitive code or to access assembly instructions that are not
  readily available to C programs.
  
!  Note that extended 'asm' statements must be inside a function.  Only
! basic 'asm' may be outside functions (*note Basic Asm::).  Functions
! declared with the 'naked' attribute also require basic 'asm' (*note
  Function Attributes::).
  
!  While the uses of 'asm' are many and varied, it may help to think of an
! 'asm' statement as a series of low-level instructions that convert input
! parameters to output parameters.  So a simple (if not particularly
! useful) example for i386 using 'asm' might look like this:
  
       int src = 1;
       int dst;
*************** useful) example for i386 using `asm' mig
*** 30799,30825 ****
  
       printf("%d\n", dst);
  
!  This code copies `src' to `dst' and add 1 to `dst'.
  
  6.44.2.1 Volatile
  .................
  
! GCC's optimizers sometimes discard `asm' statements if they determine
! there is no need for the output variables. Also, the optimizers may move
! code out of loops if they believe that the code will always return the
! same result (i.e. none of its input values change between calls). Using
! the `volatile' qualifier disables these optimizations. `asm' statements
! that have no output operands, including `asm goto' statements, are
! implicitly volatile.
  
   This i386 code demonstrates a case that does not use (or require) the
! `volatile' qualifier. If it is performing assertion checking, this code
! uses `asm' to perform the validation. Otherwise, `dwRes' is
! unreferenced by any code. As a result, the optimizers can discard the
! `asm' statement, which in turn removes the need for the entire
! `DoCheck' routine. By omitting the `volatile' qualifier when it isn't
! needed you allow the optimizers to produce the most efficient code
! possible.
  
       void DoCheck(uint32_t dwSomeValue)
       {
--- 30626,30651 ----
  
       printf("%d\n", dst);
  
!  This code copies 'src' to 'dst' and add 1 to 'dst'.
  
  6.44.2.1 Volatile
  .................
  
! GCC's optimizers sometimes discard 'asm' statements if they determine
! there is no need for the output variables.  Also, the optimizers may
! move code out of loops if they believe that the code will always return
! the same result (i.e.  none of its input values change between calls).
! Using the 'volatile' qualifier disables these optimizations.  'asm'
! statements that have no output operands, including 'asm goto'
! statements, are implicitly volatile.
  
   This i386 code demonstrates a case that does not use (or require) the
! 'volatile' qualifier.  If it is performing assertion checking, this code
! uses 'asm' to perform the validation.  Otherwise, 'dwRes' is
! unreferenced by any code.  As a result, the optimizers can discard the
! 'asm' statement, which in turn removes the need for the entire 'DoCheck'
! routine.  By omitting the 'volatile' qualifier when it isn't needed you
! allow the optimizers to produce the most efficient code possible.
  
       void DoCheck(uint32_t dwSomeValue)
       {
*************** possible.
*** 30835,30843 ****
       }
  
   The next example shows a case where the optimizers can recognize that
! the input (`dwSomeValue') never changes during the execution of the
! function and can therefore move the `asm' outside the loop to produce
! more efficient code.  Again, using `volatile' disables this type of
  optimization.
  
       void do_print(uint32_t dwSomeValue)
--- 30661,30669 ----
       }
  
   The next example shows a case where the optimizers can recognize that
! the input ('dwSomeValue') never changes during the execution of the
! function and can therefore move the 'asm' outside the loop to produce
! more efficient code.  Again, using 'volatile' disables this type of
  optimization.
  
       void do_print(uint32_t dwSomeValue)
*************** optimization.
*** 30857,30865 ****
       }
  
   The following example demonstrates a case where you need to use the
! `volatile' qualifier.  It uses the x86 `rdtsc' instruction, which reads
! the computer's time-stamp counter. Without the `volatile' qualifier,
! the optimizers might assume that the `asm' block will always return the
  same value and therefore optimize away the second call.
  
       uint64_t msr;
--- 30683,30691 ----
       }
  
   The following example demonstrates a case where you need to use the
! 'volatile' qualifier.  It uses the x86 'rdtsc' instruction, which reads
! the computer's time-stamp counter.  Without the 'volatile' qualifier,
! the optimizers might assume that the 'asm' block will always return the
  same value and therefore optimize away the second call.
  
       uint64_t msr;
*************** same value and therefore optimize away t
*** 30886,30914 ****
       printf("msr: %llx\n", msr);
  
   GCC's optimizers do not treat this code like the non-volatile code in
! the earlier examples. They do not move it out of loops or omit it on the
! assumption that the result from a previous call is still valid.
  
!  Note that the compiler can move even volatile `asm' instructions
! relative to other code, including across jump instructions. For
  example, on many targets there is a system register that controls the
! rounding mode of floating-point operations. Setting it with a volatile
! `asm', as in the following PowerPC example, does not work reliably.
  
       asm volatile("mtfsf 255, %0" : : "f" (fpenv));
       sum = x + y;
  
!  The compiler may move the addition back before the volatile `asm'. To
! make it work as expected, add an artificial dependency to the `asm' by
  referencing a variable in the subsequent code, for example:
  
       asm volatile ("mtfsf 255,%1" : "=X" (sum) : "f" (fpenv));
       sum = x + y;
  
   Under certain circumstances, GCC may duplicate (or remove duplicates
! of) your assembly code when optimizing. This can lead to unexpected
  duplicate symbol errors during compilation if your asm code defines
! symbols or labels.  Using `%=' (*note AssemblerTemplate::) may help
  resolve this problem.
  
  6.44.2.2 Assembler Template
--- 30712,30740 ----
       printf("msr: %llx\n", msr);
  
   GCC's optimizers do not treat this code like the non-volatile code in
! the earlier examples.  They do not move it out of loops or omit it on
! the assumption that the result from a previous call is still valid.
  
!  Note that the compiler can move even volatile 'asm' instructions
! relative to other code, including across jump instructions.  For
  example, on many targets there is a system register that controls the
! rounding mode of floating-point operations.  Setting it with a volatile
! 'asm', as in the following PowerPC example, does not work reliably.
  
       asm volatile("mtfsf 255, %0" : : "f" (fpenv));
       sum = x + y;
  
!  The compiler may move the addition back before the volatile 'asm'.  To
! make it work as expected, add an artificial dependency to the 'asm' by
  referencing a variable in the subsequent code, for example:
  
       asm volatile ("mtfsf 255,%1" : "=X" (sum) : "f" (fpenv));
       sum = x + y;
  
   Under certain circumstances, GCC may duplicate (or remove duplicates
! of) your assembly code when optimizing.  This can lead to unexpected
  duplicate symbol errors during compilation if your asm code defines
! symbols or labels.  Using '%=' (*note AssemblerTemplate::) may help
  resolve this problem.
  
  6.44.2.2 Assembler Template
*************** resolve this problem.
*** 30917,30951 ****
  An assembler template is a literal string containing assembler
  instructions.  The compiler replaces tokens in the template that refer
  to inputs, outputs, and goto labels, and then outputs the resulting
! string to the assembler. The string can contain any instructions
! recognized by the assembler, including directives. GCC does not parse
  the assembler instructions themselves and does not know what they mean
! or even whether they are valid assembler input. However, it does count
  the statements (*note Size of an asm::).
  
   You may place multiple assembler instructions together in a single
! `asm' string, separated by the characters normally used in assembly
! code for the system. A combination that works in most places is a
! newline to break the line, plus a tab character to move to the
! instruction field (written as `\n\t').  Some assemblers allow
! semicolons as a line separator. However, note that some assembler
! dialects use semicolons to start a comment.
  
!  Do not expect a sequence of `asm' statements to remain perfectly
! consecutive after compilation, even when you are using the `volatile'
! qualifier. If certain instructions need to remain consecutive in the
  output, put them in a single multi-instruction asm statement.
  
   Accessing data from C programs without using input/output operands
  (such as by using global symbols directly from the assembler template)
! may not work as expected. Similarly, calling functions directly from an
  assembler template requires a detailed understanding of the target
  assembler and ABI.
  
   Since GCC does not parse the assembler template, it has no visibility
! of any symbols it references. This may result in GCC discarding those
! symbols as unreferenced unless they are also listed as input, output,
! or goto operands.
  
  Special format strings
  ......................
--- 30743,30777 ----
  An assembler template is a literal string containing assembler
  instructions.  The compiler replaces tokens in the template that refer
  to inputs, outputs, and goto labels, and then outputs the resulting
! string to the assembler.  The string can contain any instructions
! recognized by the assembler, including directives.  GCC does not parse
  the assembler instructions themselves and does not know what they mean
! or even whether they are valid assembler input.  However, it does count
  the statements (*note Size of an asm::).
  
   You may place multiple assembler instructions together in a single
! 'asm' string, separated by the characters normally used in assembly code
! for the system.  A combination that works in most places is a newline to
! break the line, plus a tab character to move to the instruction field
! (written as '\n\t').  Some assemblers allow semicolons as a line
! separator.  However, note that some assembler dialects use semicolons to
! start a comment.
  
!  Do not expect a sequence of 'asm' statements to remain perfectly
! consecutive after compilation, even when you are using the 'volatile'
! qualifier.  If certain instructions need to remain consecutive in the
  output, put them in a single multi-instruction asm statement.
  
   Accessing data from C programs without using input/output operands
  (such as by using global symbols directly from the assembler template)
! may not work as expected.  Similarly, calling functions directly from an
  assembler template requires a detailed understanding of the target
  assembler and ABI.
  
   Since GCC does not parse the assembler template, it has no visibility
! of any symbols it references.  This may result in GCC discarding those
! symbols as unreferenced unless they are also listed as input, output, or
! goto operands.
  
  Special format strings
  ......................
*************** Special format strings
*** 30953,31000 ****
  In addition to the tokens described by the input, output, and goto
  operands, these tokens have special meanings in the assembler template:
  
! `%%'
!      Outputs a single `%' into the assembler code.
  
! `%='
!      Outputs a number that is unique to each instance of the `asm'
!      statement in the entire compilation. This option is useful when
       creating local labels and referring to them multiple times in a
       single template that generates multiple assembler instructions.
  
! `%{'
! `%|'
! `%}'
!      Outputs `{', `|', and `}' characters (respectively) into the
       assembler code.  When unescaped, these characters have special
       meaning to indicate multiple assembler dialects, as described
       below.
  
! Multiple assembler dialects in `asm' templates
  ..............................................
  
  On targets such as x86, GCC supports multiple assembler dialects.  The
! `-masm' option controls which dialect GCC uses as its default for
! inline assembler. The target-specific documentation for the `-masm'
! option contains the list of supported dialects, as well as the default
! dialect if the option is not specified. This information may be
! important to understand, since assembler code that works correctly when
! compiled using one dialect will likely fail if compiled using another.
! *Note x86 Options::.
  
!  If your code needs to support multiple assembler dialects (for
! example, if you are writing public headers that need to support a
! variety of compilation options), use constructs of this form:
  
       { dialect0 | dialect1 | dialect2... }
  
!  This construct outputs `dialect0' when using dialect #0 to compile the
! code, `dialect1' for dialect #1, etc. If there are fewer alternatives
! within the braces than the number of dialects the compiler supports,
! the construct outputs nothing.
  
!  For example, if an x86 compiler supports two dialects (`att',
! `intel'), an assembler template such as this:
  
       "bt{l %[Offset],%[Base] | %[Base],%[Offset]}; jc %l2"
  
--- 30779,30826 ----
  In addition to the tokens described by the input, output, and goto
  operands, these tokens have special meanings in the assembler template:
  
! '%%'
!      Outputs a single '%' into the assembler code.
  
! '%='
!      Outputs a number that is unique to each instance of the 'asm'
!      statement in the entire compilation.  This option is useful when
       creating local labels and referring to them multiple times in a
       single template that generates multiple assembler instructions.
  
! '%{'
! '%|'
! '%}'
!      Outputs '{', '|', and '}' characters (respectively) into the
       assembler code.  When unescaped, these characters have special
       meaning to indicate multiple assembler dialects, as described
       below.
  
! Multiple assembler dialects in 'asm' templates
  ..............................................
  
  On targets such as x86, GCC supports multiple assembler dialects.  The
! '-masm' option controls which dialect GCC uses as its default for inline
! assembler.  The target-specific documentation for the '-masm' option
! contains the list of supported dialects, as well as the default dialect
! if the option is not specified.  This information may be important to
! understand, since assembler code that works correctly when compiled
! using one dialect will likely fail if compiled using another.  *Note x86
! Options::.
  
!  If your code needs to support multiple assembler dialects (for example,
! if you are writing public headers that need to support a variety of
! compilation options), use constructs of this form:
  
       { dialect0 | dialect1 | dialect2... }
  
!  This construct outputs 'dialect0' when using dialect #0 to compile the
! code, 'dialect1' for dialect #1, etc.  If there are fewer alternatives
! within the braces than the number of dialects the compiler supports, the
! construct outputs nothing.
  
!  For example, if an x86 compiler supports two dialects ('att', 'intel'),
! an assembler template such as this:
  
       "bt{l %[Offset],%[Base] | %[Base],%[Offset]}; jc %l2"
  
*************** corresponds to either
*** 31017,31027 ****
  6.44.2.3 Output Operands
  ........................
  
! An `asm' statement has zero or more output operands indicating the names
  of C variables modified by the assembler code.
  
!  In this i386 example, `old' (referred to in the template string as
! `%0') and `*Base' (as `%1') are outputs and `Offset' (`%2') is an input:
  
       bool old;
  
--- 30843,30853 ----
  6.44.2.3 Output Operands
  ........................
  
! An 'asm' statement has zero or more output operands indicating the names
  of C variables modified by the assembler code.
  
!  In this i386 example, 'old' (referred to in the template string as
! '%0') and '*Base' (as '%1') are outputs and 'Offset' ('%2') is an input:
  
       bool old;
  
*************** of C variables modified by the assembler
*** 31040,31076 ****
  ASMSYMBOLICNAME
       Specifies a symbolic name for the operand.  Reference the name in
       the assembler template by enclosing it in square brackets (i.e.
!      `%[Value]'). The scope of the name is the `asm' statement that
!      contains the definition. Any valid C variable name is acceptable,
!      including names already defined in the surrounding code. No two
!      operands within the same `asm' statement can use the same symbolic
       name.
  
!      When not using an ASMSYMBOLICNAME, use the (zero-based) position
!      of the operand in the list of operands in the assembler template.
!      For example if there are three output operands, use `%0' in the
!      template to refer to the first, `%1' for the second, and `%2' for
       the third.
  
  CONSTRAINT
       A string constant specifying constraints on the placement of the
       operand; *Note Constraints::, for details.
  
!      Output constraints must begin with either `=' (a variable
!      overwriting an existing value) or `+' (when reading and writing).
!      When using `=', do not assume the location contains the existing
!      value on entry to the `asm', except when the operand is tied to an
       input; *note Input Operands: InputOperands.
  
       After the prefix, there must be one or more additional constraints
!      (*note Constraints::) that describe where the value resides. Common
!      constraints include `r' for register and `m' for memory.  When you
!      list more than one possible location (for example, `"=rm"'), the
!      compiler chooses the most efficient one based on the current
!      context.  If you list as many alternates as the `asm' statement
!      allows, you permit the optimizers to produce the best possible
!      code.  If you must use a specific register, but your Machine
!      Constraints do not provide sufficient control to select the
       specific register you want, local register variables may provide a
       solution (*note Local Register Variables::).
  
--- 30866,30902 ----
  ASMSYMBOLICNAME
       Specifies a symbolic name for the operand.  Reference the name in
       the assembler template by enclosing it in square brackets (i.e.
!      '%[Value]').  The scope of the name is the 'asm' statement that
!      contains the definition.  Any valid C variable name is acceptable,
!      including names already defined in the surrounding code.  No two
!      operands within the same 'asm' statement can use the same symbolic
       name.
  
!      When not using an ASMSYMBOLICNAME, use the (zero-based) position of
!      the operand in the list of operands in the assembler template.  For
!      example if there are three output operands, use '%0' in the
!      template to refer to the first, '%1' for the second, and '%2' for
       the third.
  
  CONSTRAINT
       A string constant specifying constraints on the placement of the
       operand; *Note Constraints::, for details.
  
!      Output constraints must begin with either '=' (a variable
!      overwriting an existing value) or '+' (when reading and writing).
!      When using '=', do not assume the location contains the existing
!      value on entry to the 'asm', except when the operand is tied to an
       input; *note Input Operands: InputOperands.
  
       After the prefix, there must be one or more additional constraints
!      (*note Constraints::) that describe where the value resides.
!      Common constraints include 'r' for register and 'm' for memory.
!      When you list more than one possible location (for example,
!      '"=rm"'), the compiler chooses the most efficient one based on the
!      current context.  If you list as many alternates as the 'asm'
!      statement allows, you permit the optimizers to produce the best
!      possible code.  If you must use a specific register, but your
!      Machine Constraints do not provide sufficient control to select the
       specific register you want, local register variables may provide a
       solution (*note Local Register Variables::).
  
*************** CVARIABLENAME
*** 31079,31134 ****
       variable name.  The enclosing parentheses are a required part of
       the syntax.
  
- 
   When the compiler selects the registers to use to represent the output
  operands, it does not use any of the clobbered registers (*note
  Clobbers::).
  
!  Output operand expressions must be lvalues. The compiler cannot check
  whether the operands have data types that are reasonable for the
! instruction being executed. For output expressions that are not
  directly addressable (for example a bit-field), the constraint must
! allow a register. In that case, GCC uses the register as the output of
! the `asm', and then stores that register into the output.
  
!  Operands using the `+' constraint modifier count as two operands (that
  is, both as input and output) towards the total maximum of 30 operands
! per `asm' statement.
  
!  Use the `&' constraint modifier (*note Modifiers::) on all output
  operands that must not overlap an input.  Otherwise, GCC may allocate
  the output operand in the same register as an unrelated input operand,
  on the assumption that the assembler code consumes its inputs before
! producing outputs. This assumption may be false if the assembler code
  actually consists of more than one instruction.
  
   The same problem can occur if one output parameter (A) allows a
  register constraint and another output parameter (B) allows a memory
! constraint.  The code generated by GCC to access the memory address in
! B can contain registers which _might_ be shared by A, and GCC considers
! those registers to be inputs to the asm. As above, GCC assumes that
! such input registers are consumed before any outputs are written. This
  assumption may result in incorrect behavior if the asm writes to A
! before using B. Combining the `&' modifier with the register constraint
  on A ensures that modifying A does not affect the address referenced by
! B. Otherwise, the location of B is undefined if A is modified before
  using B.
  
!  `asm' supports operand modifiers on operands (for example `%k2'
! instead of simply `%2'). Typically these qualifiers are hardware
! dependent. The list of supported modifiers for x86 is found at *note
! x86 Operand modifiers: x86Operandmodifiers.
  
!  If the C code that follows the `asm' makes no use of any of the output
! operands, use `volatile' for the `asm' statement to prevent the
! optimizers from discarding the `asm' statement as unneeded (see *note
  Volatile::).
  
!  This code makes no use of the optional ASMSYMBOLICNAME. Therefore it
! references the first output operand as `%0' (were there a second, it
! would be `%1', etc). The number of the first input operand is one
! greater than that of the last output operand. In this i386 example,
! that makes `Mask' referenced as `%1':
  
       uint32_t Mask = 1234;
       uint32_t Index;
--- 30905,30959 ----
       variable name.  The enclosing parentheses are a required part of
       the syntax.
  
   When the compiler selects the registers to use to represent the output
  operands, it does not use any of the clobbered registers (*note
  Clobbers::).
  
!  Output operand expressions must be lvalues.  The compiler cannot check
  whether the operands have data types that are reasonable for the
! instruction being executed.  For output expressions that are not
  directly addressable (for example a bit-field), the constraint must
! allow a register.  In that case, GCC uses the register as the output of
! the 'asm', and then stores that register into the output.
  
!  Operands using the '+' constraint modifier count as two operands (that
  is, both as input and output) towards the total maximum of 30 operands
! per 'asm' statement.
  
!  Use the '&' constraint modifier (*note Modifiers::) on all output
  operands that must not overlap an input.  Otherwise, GCC may allocate
  the output operand in the same register as an unrelated input operand,
  on the assumption that the assembler code consumes its inputs before
! producing outputs.  This assumption may be false if the assembler code
  actually consists of more than one instruction.
  
   The same problem can occur if one output parameter (A) allows a
  register constraint and another output parameter (B) allows a memory
! constraint.  The code generated by GCC to access the memory address in B
! can contain registers which _might_ be shared by A, and GCC considers
! those registers to be inputs to the asm.  As above, GCC assumes that
! such input registers are consumed before any outputs are written.  This
  assumption may result in incorrect behavior if the asm writes to A
! before using B.  Combining the '&' modifier with the register constraint
  on A ensures that modifying A does not affect the address referenced by
! B.  Otherwise, the location of B is undefined if A is modified before
  using B.
  
!  'asm' supports operand modifiers on operands (for example '%k2' instead
! of simply '%2').  Typically these qualifiers are hardware dependent.
! The list of supported modifiers for x86 is found at *note x86 Operand
! modifiers: x86Operandmodifiers.
  
!  If the C code that follows the 'asm' makes no use of any of the output
! operands, use 'volatile' for the 'asm' statement to prevent the
! optimizers from discarding the 'asm' statement as unneeded (see *note
  Volatile::).
  
!  This code makes no use of the optional ASMSYMBOLICNAME.  Therefore it
! references the first output operand as '%0' (were there a second, it
! would be '%1', etc).  The number of the first input operand is one
! greater than that of the last output operand.  In this i386 example,
! that makes 'Mask' referenced as '%1':
  
       uint32_t Mask = 1234;
       uint32_t Index;
*************** that makes `Mask' referenced as `%1':
*** 31138,31155 ****
            : "r" (Mask)
            : "cc");
  
!  That code overwrites the variable `Index' (`='), placing the value in
! a register (`r').  Using the generic `r' constraint instead of a
  constraint for a specific register allows the compiler to pick the
! register to use, which can result in more efficient code. This may not
  be possible if an assembler instruction requires a specific register.
  
   The following i386 example uses the ASMSYMBOLICNAME syntax.  It
  produces the same result as the code above, but some may consider it
! more readable or more maintainable since reordering index numbers is
! not necessary when adding or removing operands. The names `aIndex' and
! `aMask' are only used in this example to emphasize which names get used
! where.  It is acceptable to reuse the names `Index' and `Mask'.
  
       uint32_t Mask = 1234;
       uint32_t Index;
--- 30963,30980 ----
            : "r" (Mask)
            : "cc");
  
!  That code overwrites the variable 'Index' ('='), placing the value in a
! register ('r').  Using the generic 'r' constraint instead of a
  constraint for a specific register allows the compiler to pick the
! register to use, which can result in more efficient code.  This may not
  be possible if an assembler instruction requires a specific register.
  
   The following i386 example uses the ASMSYMBOLICNAME syntax.  It
  produces the same result as the code above, but some may consider it
! more readable or more maintainable since reordering index numbers is not
! necessary when adding or removing operands.  The names 'aIndex' and
! 'aMask' are only used in this example to emphasize which names get used
! where.  It is acceptable to reuse the names 'Index' and 'Mask'.
  
       uint32_t Mask = 1234;
       uint32_t Index;
*************** where.  It is acceptable to reuse the na
*** 31169,31178 ****
          : [d] "=rm" (d)
          : [e] "rm" (*e));
  
!  Here, `d' may either be in a register or in memory. Since the compiler
! might already have the current value of the `uint32_t' location pointed
! to by `e' in a register, you can enable it to choose the best location
! for `d' by specifying both constraints.
  
  6.44.2.4 Flag Output Operands
  .............................
--- 30994,31003 ----
          : [d] "=rm" (d)
          : [e] "rm" (*e));
  
!  Here, 'd' may either be in a register or in memory.  Since the compiler
! might already have the current value of the 'uint32_t' location pointed
! to by 'e' in a register, you can enable it to choose the best location
! for 'd' by specifying both constraints.
  
  6.44.2.4 Flag Output Operands
  .............................
*************** conditions in the flags register may be
*** 31187,31269 ****
  conditions supported are target specific, but the general rule is that
  the output variable must be a scalar integer, and the value is boolean.
  When supported, the target defines the preprocessor symbol
! `__GCC_ASM_FLAG_OUTPUTS__'.
  
   Because of the special nature of the flag output operands, the
  constraint may not include alternatives.
  
   Most often, the target has only one flags register, and thus is an
  implied operand of many instructions.  In this case, the operand should
! not be referenced within the assembler template via `%0' etc, as there's
  no corresponding text in the assembly language.
  
  x86 family
       The flag output constraints for the x86 family are of the form
!      `=@ccCOND' where COND is one of the standard conditions defined in
!      the ISA manual for `jCC' or `setCC'.
  
!     `a'
            "above" or unsigned greater than
! 
!     `ae'
            "above or equal" or unsigned greater than or equal
! 
!     `b'
            "below" or unsigned less than
! 
!     `be'
            "below or equal" or unsigned less than or equal
! 
!     `c'
            carry flag set
! 
!     `e'
!     `z'
            "equal" or zero flag set
! 
!     `g'
            signed greater than
! 
!     `ge'
            signed greater than or equal
! 
!     `l'
            signed less than
! 
!     `le'
            signed less than or equal
! 
!     `o'
            overflow flag set
! 
!     `p'
            parity flag set
! 
!     `s'
            sign flag set
! 
!     `na'
!     `nae'
!     `nb'
!     `nbe'
!     `nc'
!     `ne'
!     `ng'
!     `nge'
!     `nl'
!     `nle'
!     `no'
!     `np'
!     `ns'
!     `nz'
            "not" FLAG, or inverted versions of those above
  
- 
  6.44.2.5 Input Operands
  .......................
  
! Input operands make values from C variables and expressions available
! to the assembly code.
  
   Operands are separated by commas.  Each operand has this format:
  
--- 31012,31080 ----
  conditions supported are target specific, but the general rule is that
  the output variable must be a scalar integer, and the value is boolean.
  When supported, the target defines the preprocessor symbol
! '__GCC_ASM_FLAG_OUTPUTS__'.
  
   Because of the special nature of the flag output operands, the
  constraint may not include alternatives.
  
   Most often, the target has only one flags register, and thus is an
  implied operand of many instructions.  In this case, the operand should
! not be referenced within the assembler template via '%0' etc, as there's
  no corresponding text in the assembly language.
  
  x86 family
       The flag output constraints for the x86 family are of the form
!      '=@ccCOND' where COND is one of the standard conditions defined in
!      the ISA manual for 'jCC' or 'setCC'.
  
!      'a'
            "above" or unsigned greater than
!      'ae'
            "above or equal" or unsigned greater than or equal
!      'b'
            "below" or unsigned less than
!      'be'
            "below or equal" or unsigned less than or equal
!      'c'
            carry flag set
!      'e'
!      'z'
            "equal" or zero flag set
!      'g'
            signed greater than
!      'ge'
            signed greater than or equal
!      'l'
            signed less than
!      'le'
            signed less than or equal
!      'o'
            overflow flag set
!      'p'
            parity flag set
!      's'
            sign flag set
!      'na'
!      'nae'
!      'nb'
!      'nbe'
!      'nc'
!      'ne'
!      'ng'
!      'nge'
!      'nl'
!      'nle'
!      'no'
!      'np'
!      'ns'
!      'nz'
            "not" FLAG, or inverted versions of those above
  
  6.44.2.5 Input Operands
  .......................
  
! Input operands make values from C variables and expressions available to
! the assembly code.
  
   Operands are separated by commas.  Each operand has this format:
  
*************** to the assembly code.
*** 31272,31314 ****
  ASMSYMBOLICNAME
       Specifies a symbolic name for the operand.  Reference the name in
       the assembler template by enclosing it in square brackets (i.e.
!      `%[Value]'). The scope of the name is the `asm' statement that
!      contains the definition. Any valid C variable name is acceptable,
!      including names already defined in the surrounding code. No two
!      operands within the same `asm' statement can use the same symbolic
       name.
  
!      When not using an ASMSYMBOLICNAME, use the (zero-based) position
!      of the operand in the list of operands in the assembler template.
!      For example if there are two output operands and three inputs, use
!      `%2' in the template to refer to the first input operand, `%3' for
!      the second, and `%4' for the third.
  
  CONSTRAINT
       A string constant specifying constraints on the placement of the
       operand; *Note Constraints::, for details.
  
!      Input constraint strings may not begin with either `=' or `+'.
       When you list more than one possible location (for example,
!      `"irm"'), the compiler chooses the most efficient one based on the
       current context.  If you must use a specific register, but your
!      Machine Constraints do not provide sufficient control to select
!      the specific register you want, local register variables may
!      provide a solution (*note Local Register Variables::).
  
!      Input constraints can also be digits (for example, `"0"'). This
!      indicates that the specified input must be in the same place as
!      the output constraint at the (zero-based) index in the output
       constraint list.  When using ASMSYMBOLICNAME syntax for the output
!      operands, you may use these names (enclosed in brackets `[]')
       instead of digits.
  
  CEXPRESSION
!      This is the C variable or expression being passed to the `asm'
       statement as input.  The enclosing parentheses are a required part
       of the syntax.
  
- 
   When the compiler selects the registers to use to represent the input
  operands, it does not use any of the clobbered registers (*note
  Clobbers::).
--- 31083,31124 ----
  ASMSYMBOLICNAME
       Specifies a symbolic name for the operand.  Reference the name in
       the assembler template by enclosing it in square brackets (i.e.
!      '%[Value]').  The scope of the name is the 'asm' statement that
!      contains the definition.  Any valid C variable name is acceptable,
!      including names already defined in the surrounding code.  No two
!      operands within the same 'asm' statement can use the same symbolic
       name.
  
!      When not using an ASMSYMBOLICNAME, use the (zero-based) position of
!      the operand in the list of operands in the assembler template.  For
!      example if there are two output operands and three inputs, use '%2'
!      in the template to refer to the first input operand, '%3' for the
!      second, and '%4' for the third.
  
  CONSTRAINT
       A string constant specifying constraints on the placement of the
       operand; *Note Constraints::, for details.
  
!      Input constraint strings may not begin with either '=' or '+'.
       When you list more than one possible location (for example,
!      '"irm"'), the compiler chooses the most efficient one based on the
       current context.  If you must use a specific register, but your
!      Machine Constraints do not provide sufficient control to select the
!      specific register you want, local register variables may provide a
!      solution (*note Local Register Variables::).
  
!      Input constraints can also be digits (for example, '"0"').  This
!      indicates that the specified input must be in the same place as the
!      output constraint at the (zero-based) index in the output
       constraint list.  When using ASMSYMBOLICNAME syntax for the output
!      operands, you may use these names (enclosed in brackets '[]')
       instead of digits.
  
  CEXPRESSION
!      This is the C variable or expression being passed to the 'asm'
       statement as input.  The enclosing parentheses are a required part
       of the syntax.
  
   When the compiler selects the registers to use to represent the input
  operands, it does not use any of the clobbered registers (*note
  Clobbers::).
*************** consecutive colons where the output oper
*** 31321,31349 ****
          : "r" (Offset / 8));
  
   *Warning:* Do _not_ modify the contents of input-only operands (except
! for inputs tied to outputs). The compiler assumes that on exit from the
! `asm' statement these operands contain the same values as they had
! before executing the statement.  It is _not_ possible to use clobbers
! to inform the compiler that the values in these inputs are changing. One
  common work-around is to tie the changing input variable to an output
! variable that never gets used. Note, however, that if the code that
! follows the `asm' statement makes no use of any of the output operands,
! the GCC optimizers may discard the `asm' statement as unneeded (see
  *note Volatile::).
  
!  `asm' supports operand modifiers on operands (for example `%k2'
! instead of simply `%2'). Typically these qualifiers are hardware
! dependent. The list of supported modifiers for x86 is found at *note
! x86 Operand modifiers: x86Operandmodifiers.
  
!  In this example using the fictitious `combine' instruction, the
! constraint `"0"' for input operand 1 says that it must occupy the same
! location as output operand 0. Only input operands may use numbers in
! constraints, and they must each refer to an output operand. Only a
  number (or the symbolic assembler name) in the constraint can guarantee
! that one operand is in the same place as another. The mere fact that
! `foo' is the value of both operands is not enough to guarantee that
! they are in the same place in the generated assembler code.
  
       asm ("combine %2, %0"
          : "=r" (foo)
--- 31131,31159 ----
          : "r" (Offset / 8));
  
   *Warning:* Do _not_ modify the contents of input-only operands (except
! for inputs tied to outputs).  The compiler assumes that on exit from the
! 'asm' statement these operands contain the same values as they had
! before executing the statement.  It is _not_ possible to use clobbers to
! inform the compiler that the values in these inputs are changing.  One
  common work-around is to tie the changing input variable to an output
! variable that never gets used.  Note, however, that if the code that
! follows the 'asm' statement makes no use of any of the output operands,
! the GCC optimizers may discard the 'asm' statement as unneeded (see
  *note Volatile::).
  
!  'asm' supports operand modifiers on operands (for example '%k2' instead
! of simply '%2').  Typically these qualifiers are hardware dependent.
! The list of supported modifiers for x86 is found at *note x86 Operand
! modifiers: x86Operandmodifiers.
  
!  In this example using the fictitious 'combine' instruction, the
! constraint '"0"' for input operand 1 says that it must occupy the same
! location as output operand 0.  Only input operands may use numbers in
! constraints, and they must each refer to an output operand.  Only a
  number (or the symbolic assembler name) in the constraint can guarantee
! that one operand is in the same place as another.  The mere fact that
! 'foo' is the value of both operands is not enough to guarantee that they
! are in the same place in the generated assembler code.
  
       asm ("combine %2, %0"
          : "=r" (foo)
*************** they are in the same place in the genera
*** 31359,31386 ****
  .................
  
  While the compiler is aware of changes to entries listed in the output
! operands, the inline `asm' code may modify more than just the outputs.
  For example, calculations may require additional registers, or the
  processor may overwrite a register as a side effect of a particular
  assembler instruction.  In order to inform the compiler of these
! changes, list them in the clobber list. Clobber list items are either
! register names or the special clobbers (listed below). Each clobber
  list item is a string constant enclosed in double quotes and separated
  by commas.
  
   Clobber descriptions may not in any way overlap with an input or output
! operand. For example, you may not have an operand describing a register
  class with one member when listing that register in the clobber list.
  Variables declared to live in specific registers (*note Explicit
! Register Variables::) and used as `asm' input or output operands must
! have no part mentioned in the clobber description. In particular, there
  is no way to specify that input operands get modified without also
  specifying them as output operands.
  
!  When the compiler selects which registers to use to represent input
! and output operands, it does not use any of the clobbered registers. As
! a result, clobbered registers are available for any use in the
! assembler code.
  
   Here is a realistic example for the VAX showing the use of clobbered
  registers:
--- 31169,31196 ----
  .................
  
  While the compiler is aware of changes to entries listed in the output
! operands, the inline 'asm' code may modify more than just the outputs.
  For example, calculations may require additional registers, or the
  processor may overwrite a register as a side effect of a particular
  assembler instruction.  In order to inform the compiler of these
! changes, list them in the clobber list.  Clobber list items are either
! register names or the special clobbers (listed below).  Each clobber
  list item is a string constant enclosed in double quotes and separated
  by commas.
  
   Clobber descriptions may not in any way overlap with an input or output
! operand.  For example, you may not have an operand describing a register
  class with one member when listing that register in the clobber list.
  Variables declared to live in specific registers (*note Explicit
! Register Variables::) and used as 'asm' input or output operands must
! have no part mentioned in the clobber description.  In particular, there
  is no way to specify that input operands get modified without also
  specifying them as output operands.
  
!  When the compiler selects which registers to use to represent input and
! output operands, it does not use any of the clobbered registers.  As a
! result, clobbered registers are available for any use in the assembler
! code.
  
   Here is a realistic example for the VAX showing the use of clobbered
  registers:
*************** registers:
*** 31392,31463 ****
  
   Also, there are two special clobber arguments:
  
! `"cc"'
!      The `"cc"' clobber indicates that the assembler code modifies the
!      flags register. On some machines, GCC represents the condition
!      codes as a specific hardware register; `"cc"' serves to name this
       register.  On other machines, condition code handling is different,
!      and specifying `"cc"' has no effect. But it is valid no matter
       what the target.
  
! `"memory"'
!      The `"memory"' clobber tells the compiler that the assembly code
!      performs memory reads or writes to items other than those listed
!      in the input and output operands (for example, accessing the
!      memory pointed to by one of the input parameters). To ensure
!      memory contains correct values, GCC may need to flush specific
!      register values to memory before executing the `asm'. Further, the
!      compiler does not assume that any values read from memory before an
!      `asm' remain unchanged after that `asm'; it reloads them as needed.
!      Using the `"memory"' clobber effectively forms a read/write memory
       barrier for the compiler.
  
       Note that this clobber does not prevent the _processor_ from doing
!      speculative reads past the `asm' statement. To prevent that, you
       need processor-specific fence instructions.
  
       Flushing registers to memory has performance implications and may
       be an issue for time-sensitive code.  You can use a trick to avoid
       this if the size of the memory being accessed is known at compile
!      time. For example, if accessing ten bytes of a string, use a
       memory input like:
  
!      `{"m"( ({ struct { char x[10]; } *p = (void *)ptr ; *p; }) )}'.
! 
  
  6.44.2.7 Goto Labels
  ....................
  
! `asm goto' allows assembly code to jump to one or more C labels.  The
! GOTOLABELS section in an `asm goto' statement contains a comma-separated
! list of all C labels to which the assembler code may jump. GCC assumes
! that `asm' execution falls through to the next statement (if this is
! not the case, consider using the `__builtin_unreachable' intrinsic
! after the `asm' statement). Optimization of `asm goto' may be improved
! by using the `hot' and `cold' label attributes (*note Label
! Attributes::).
  
!  An `asm goto' statement cannot have outputs.  This is due to an
  internal restriction of the compiler: control transfer instructions
  cannot have outputs.  If the assembler code does modify anything, use
! the `"memory"' clobber to force the optimizers to flush all register
! values to memory and reload them if necessary after the `asm' statement.
  
!  Also note that an `asm goto' statement is always implicitly considered
  volatile.
  
!  To reference a label in the assembler template, prefix it with `%l'
! (lowercase `L') followed by its (zero-based) position in GOTOLABELS
! plus the number of input operands.  For example, if the `asm' has three
! inputs and references two labels, refer to the first label as `%l3' and
! the second as `%l4').
  
   Alternately, you can reference labels using the actual C label name
! enclosed in brackets.  For example, to reference a label named `carry',
! you can use `%l[carry]'.  The label must still be listed in the
  GOTOLABELS section when using this approach.
  
!  Here is an example of `asm goto' for i386:
  
       asm goto (
           "btl %1, %0\n\t"
--- 31202,31271 ----
  
   Also, there are two special clobber arguments:
  
! '"cc"'
!      The '"cc"' clobber indicates that the assembler code modifies the
!      flags register.  On some machines, GCC represents the condition
!      codes as a specific hardware register; '"cc"' serves to name this
       register.  On other machines, condition code handling is different,
!      and specifying '"cc"' has no effect.  But it is valid no matter
       what the target.
  
! '"memory"'
!      The '"memory"' clobber tells the compiler that the assembly code
!      performs memory reads or writes to items other than those listed in
!      the input and output operands (for example, accessing the memory
!      pointed to by one of the input parameters).  To ensure memory
!      contains correct values, GCC may need to flush specific register
!      values to memory before executing the 'asm'.  Further, the compiler
!      does not assume that any values read from memory before an 'asm'
!      remain unchanged after that 'asm'; it reloads them as needed.
!      Using the '"memory"' clobber effectively forms a read/write memory
       barrier for the compiler.
  
       Note that this clobber does not prevent the _processor_ from doing
!      speculative reads past the 'asm' statement.  To prevent that, you
       need processor-specific fence instructions.
  
       Flushing registers to memory has performance implications and may
       be an issue for time-sensitive code.  You can use a trick to avoid
       this if the size of the memory being accessed is known at compile
!      time.  For example, if accessing ten bytes of a string, use a
       memory input like:
  
!      '{"m"( ({ struct { char x[10]; } *p = (void *)ptr ; *p; }) )}'.
  
  6.44.2.7 Goto Labels
  ....................
  
! 'asm goto' allows assembly code to jump to one or more C labels.  The
! GOTOLABELS section in an 'asm goto' statement contains a comma-separated
! list of all C labels to which the assembler code may jump.  GCC assumes
! that 'asm' execution falls through to the next statement (if this is not
! the case, consider using the '__builtin_unreachable' intrinsic after the
! 'asm' statement).  Optimization of 'asm goto' may be improved by using
! the 'hot' and 'cold' label attributes (*note Label Attributes::).
  
!  An 'asm goto' statement cannot have outputs.  This is due to an
  internal restriction of the compiler: control transfer instructions
  cannot have outputs.  If the assembler code does modify anything, use
! the '"memory"' clobber to force the optimizers to flush all register
! values to memory and reload them if necessary after the 'asm' statement.
  
!  Also note that an 'asm goto' statement is always implicitly considered
  volatile.
  
!  To reference a label in the assembler template, prefix it with '%l'
! (lowercase 'L') followed by its (zero-based) position in GOTOLABELS plus
! the number of input operands.  For example, if the 'asm' has three
! inputs and references two labels, refer to the first label as '%l3' and
! the second as '%l4').
  
   Alternately, you can reference labels using the actual C label name
! enclosed in brackets.  For example, to reference a label named 'carry',
! you can use '%l[carry]'.  The label must still be listed in the
  GOTOLABELS section when using this approach.
  
!  Here is an example of 'asm goto' for i386:
  
       asm goto (
           "btl %1, %0\n\t"
*************** GOTOLABELS section when using this appro
*** 31472,31478 ****
       carry:
       return 1;
  
!  The following example shows an `asm goto' that uses a memory clobber.
  
       int frob(int x)
       {
--- 31280,31286 ----
       carry:
       return 1;
  
!  The following example shows an 'asm goto' that uses a memory clobber.
  
       int frob(int x)
       {
*************** GOTOLABELS section when using this appro
*** 31491,31499 ****
  ..............................
  
  References to input, output, and goto operands in the assembler template
! of extended `asm' statements can use modifiers to affect the way the
! operands are formatted in the code output to the assembler. For
! example, the following code uses the `h' and `b' modifiers for x86:
  
       uint16_t  num;
       asm volatile ("xchg %h0, %b0" : "+a" (num) );
--- 31299,31307 ----
  ..............................
  
  References to input, output, and goto operands in the assembler template
! of extended 'asm' statements can use modifiers to affect the way the
! operands are formatted in the code output to the assembler.  For
! example, the following code uses the 'h' and 'b' modifiers for x86:
  
       uint16_t  num;
       asm volatile ("xchg %h0, %b0" : "+a" (num) );
*************** purposes.
*** 31519,31588 ****
       }
  
   With no modifiers, this is what the output from the operands would be
! for the `att' and `intel' dialects of assembler:
  
  Operand   masm=att   masm=intel
! --------------------------------------- 
! `%0'      `%eax'     `eax'
! `%1'      `$2'       `2'
! `%2'      `$.L2'     `OFFSET FLAT:.L2'
  
   The table below shows the list of supported modifiers and their
  effects.
  
! Modifier   Description                                  Operand   `masm=att' `masm=intel'
! ------------------------------------------------------------------------------------------ 
! `z'        Print the opcode suffix for the size of the  `%z0'     `l'        
!            current integer operand (one of                                   
!            `b'/`w'/`l'/`q').                                                 
! `b'        Print the QImode name of the register.       `%b0'     `%al'      `al'
! `h'        Print the QImode name for a "high" register. `%h0'     `%ah'      `ah'
! `w'        Print the HImode name of the register.       `%w0'     `%ax'      `ax'
! `k'        Print the SImode name of the register.       `%k0'     `%eax'     `eax'
! `q'        Print the DImode name of the register.       `%q0'     `%rax'     `rax'
! `l'        Print the label name with no punctuation.    `%l2'     `.L2'      `.L2'
! `c'        Require a constant operand and print the     `%c1'     `2'        `2'
!            constant expression with no punctuation.                          
  
! 6.44.2.9 x86 Floating-Point `asm' Operands
  ..........................................
  
  On x86 targets, there are several rules on the usage of stack-like
! registers in the operands of an `asm'.  These rules apply only to the
  operands that are stack-like registers:
  
!   1. Given a set of input registers that die in an `asm', it is
!      necessary to know which are implicitly popped by the `asm', and
       which must be explicitly popped by GCC.
  
!      An input register that is implicitly popped by the `asm' must be
       explicitly clobbered, unless it is constrained to match an output
       operand.
  
!   2. For any input register that is implicitly popped by an `asm', it is
       necessary to know how to adjust the stack to compensate for the
!      pop.  If any non-popped input is closer to the top of the
!      reg-stack than the implicitly popped register, it would not be
!      possible to know what the stack looked like--it's not clear how
!      the rest of the stack "slides up".
  
       All implicitly popped input registers must be closer to the top of
       the reg-stack than any input that is not implicitly popped.
  
!      It is possible that if an input dies in an `asm', the compiler
       might use the input register for an output reload.  Consider this
       example:
  
            asm ("foo" : "=t" (a) : "f" (b));
  
!      This code says that input `b' is not popped by the `asm', and that
!      the `asm' pushes a result onto the reg-stack, i.e., the stack is
!      one deeper after the `asm' than it was before.  But, it is
!      possible that reload may think that it can use the same register
!      for both the input and the output.
  
!      To prevent this from happening, if any input operand uses the `f'
!      constraint, all output register constraints must use the `&'
       early-clobber modifier.
  
       The example above is correctly written as:
--- 31327,31401 ----
       }
  
   With no modifiers, this is what the output from the operands would be
! for the 'att' and 'intel' dialects of assembler:
  
  Operand   masm=att   masm=intel
! ---------------------------------------
! '%0'      '%eax'     'eax'
! '%1'      '$2'       '2'
! '%2'      '$.L2'     'OFFSET
!                      FLAT:.L2'
  
   The table below shows the list of supported modifiers and their
  effects.
  
! Modifier   Description                                  Operand   'masm=att' 'masm=intel'
! ------------------------------------------------------------------------------------------
! 'z'        Print the opcode suffix for the size of      '%z0'     'l'
!            the current integer operand (one of
!            'b'/'w'/'l'/'q').
! 'b'        Print the QImode name of the register.       '%b0'     '%al'      'al'
! 'h'        Print the QImode name for a "high"           '%h0'     '%ah'      'ah'
!            register.
! 'w'        Print the HImode name of the register.       '%w0'     '%ax'      'ax'
! 'k'        Print the SImode name of the register.       '%k0'     '%eax'     'eax'
! 'q'        Print the DImode name of the register.       '%q0'     '%rax'     'rax'
! 'l'        Print the label name with no punctuation.    '%l2'     '.L2'      '.L2'
! 'c'        Require a constant operand and print the     '%c1'     '2'        '2'
!            constant expression with no punctuation.
  
!  'V' is a special modifier which prints the name of the full integer
! register without '%'.
! 
! 6.44.2.9 x86 Floating-Point 'asm' Operands
  ..........................................
  
  On x86 targets, there are several rules on the usage of stack-like
! registers in the operands of an 'asm'.  These rules apply only to the
  operands that are stack-like registers:
  
!   1. Given a set of input registers that die in an 'asm', it is
!      necessary to know which are implicitly popped by the 'asm', and
       which must be explicitly popped by GCC.
  
!      An input register that is implicitly popped by the 'asm' must be
       explicitly clobbered, unless it is constrained to match an output
       operand.
  
!   2. For any input register that is implicitly popped by an 'asm', it is
       necessary to know how to adjust the stack to compensate for the
!      pop.  If any non-popped input is closer to the top of the reg-stack
!      than the implicitly popped register, it would not be possible to
!      know what the stack looked like--it's not clear how the rest of the
!      stack "slides up".
  
       All implicitly popped input registers must be closer to the top of
       the reg-stack than any input that is not implicitly popped.
  
!      It is possible that if an input dies in an 'asm', the compiler
       might use the input register for an output reload.  Consider this
       example:
  
            asm ("foo" : "=t" (a) : "f" (b));
  
!      This code says that input 'b' is not popped by the 'asm', and that
!      the 'asm' pushes a result onto the reg-stack, i.e., the stack is
!      one deeper after the 'asm' than it was before.  But, it is possible
!      that reload may think that it can use the same register for both
!      the input and the output.
  
!      To prevent this from happening, if any input operand uses the 'f'
!      constraint, all output register constraints must use the '&'
       early-clobber modifier.
  
       The example above is correctly written as:
*************** operands that are stack-like registers:
*** 31590,31644 ****
            asm ("foo" : "=&t" (a) : "f" (b));
  
    3. Some operands need to be in particular places on the stack.  All
!      output operands fall in this category--GCC has no other way to
!      know which registers the outputs appear in unless you indicate
!      this in the constraints.
  
       Output operands must specifically indicate which register an output
!      appears in after an `asm'.  `=f' is not allowed: the operand
       constraints must select a class with a single register.
  
    4. Output operands may not be "inserted" between existing stack
       registers.  Since no 387 opcode uses a read/write operand, all
!      output operands are dead before the `asm', and are pushed by the
!      `asm'.  It makes no sense to push anywhere but the top of the
       reg-stack.
  
       Output operands must start at the top of the reg-stack: output
       operands may not "skip" a register.
  
!   5. Some `asm' statements may need extra stack space for internal
       calculations.  This can be guaranteed by clobbering stack registers
       unrelated to the inputs and outputs.
  
! 
!  This `asm' takes one input, which is internally popped, and produces
  two outputs.
  
       asm ("fsincos" : "=t" (cos), "=u" (sin) : "0" (inp));
  
! This `asm' takes two inputs, which are popped by the `fyl2xp1' opcode,
! and replaces them with one output.  The `st(1)' clobber is necessary
! for the compiler to know that `fyl2xp1' pops both inputs.
  
       asm ("fyl2xp1" : "=t" (result) : "0" (x), "u" (y) : "st(1)");
  
  
  File: gcc.info,  Node: Constraints,  Next: Asm Labels,  Prev: Extended Asm,  Up: Using Assembly Language with C
  
! 6.44.3 Constraints for `asm' Operands
  -------------------------------------
  
  Here are specific details on what constraint letters you can use with
! `asm' operands.  Constraints can say whether an operand may be in a
  register, and which kinds of register; whether the operand can be a
! memory reference, and which kinds of address; whether the operand may
! be an immediate constant, and which possible values it may have.
! Constraints can also require two operands to match.  Side-effects
! aren't allowed in operands of inline `asm', unless `<' or `>'
! constraints are used, because there is no guarantee that the
! side-effects will happen exactly once in an instruction that can update
! the addressing register.
  
  * Menu:
  
--- 31403,31455 ----
            asm ("foo" : "=&t" (a) : "f" (b));
  
    3. Some operands need to be in particular places on the stack.  All
!      output operands fall in this category--GCC has no other way to know
!      which registers the outputs appear in unless you indicate this in
!      the constraints.
  
       Output operands must specifically indicate which register an output
!      appears in after an 'asm'.  '=f' is not allowed: the operand
       constraints must select a class with a single register.
  
    4. Output operands may not be "inserted" between existing stack
       registers.  Since no 387 opcode uses a read/write operand, all
!      output operands are dead before the 'asm', and are pushed by the
!      'asm'.  It makes no sense to push anywhere but the top of the
       reg-stack.
  
       Output operands must start at the top of the reg-stack: output
       operands may not "skip" a register.
  
!   5. Some 'asm' statements may need extra stack space for internal
       calculations.  This can be guaranteed by clobbering stack registers
       unrelated to the inputs and outputs.
  
!  This 'asm' takes one input, which is internally popped, and produces
  two outputs.
  
       asm ("fsincos" : "=t" (cos), "=u" (sin) : "0" (inp));
  
! This 'asm' takes two inputs, which are popped by the 'fyl2xp1' opcode,
! and replaces them with one output.  The 'st(1)' clobber is necessary for
! the compiler to know that 'fyl2xp1' pops both inputs.
  
       asm ("fyl2xp1" : "=t" (result) : "0" (x), "u" (y) : "st(1)");
  
  
  File: gcc.info,  Node: Constraints,  Next: Asm Labels,  Prev: Extended Asm,  Up: Using Assembly Language with C
  
! 6.44.3 Constraints for 'asm' Operands
  -------------------------------------
  
  Here are specific details on what constraint letters you can use with
! 'asm' operands.  Constraints can say whether an operand may be in a
  register, and which kinds of register; whether the operand can be a
! memory reference, and which kinds of address; whether the operand may be
! an immediate constant, and which possible values it may have.
! Constraints can also require two operands to match.  Side-effects aren't
! allowed in operands of inline 'asm', unless '<' or '>' constraints are
! used, because there is no guarantee that the side-effects will happen
! exactly once in an instruction that can update the addressing register.
  
  * Menu:
  
*************** whitespace
*** 31664,31676 ****
       description even if they have different number of constraints and
       modifiers.
  
! `m'
       A memory operand is allowed, with any kind of address that the
       machine supports in general.  Note that the letter used for the
!      general memory constraint can be re-defined by a back end using
!      the `TARGET_MEM_CONSTRAINT' macro.
  
! `o'
       A memory operand is allowed, but only if the address is
       "offsettable".  This means that adding a small integer (actually,
       the width in bytes of the operand, as determined by its machine
--- 31475,31487 ----
       description even if they have different number of constraints and
       modifiers.
  
! 'm'
       A memory operand is allowed, with any kind of address that the
       machine supports in general.  Note that the letter used for the
!      general memory constraint can be re-defined by a back end using the
!      'TARGET_MEM_CONSTRAINT' macro.
  
! 'o'
       A memory operand is allowed, but only if the address is
       "offsettable".  This means that adding a small integer (actually,
       the width in bytes of the operand, as determined by its machine
*************** whitespace
*** 31686,31797 ****
       on the other addressing modes that the machine supports.
  
       Note that in an output operand which can be matched by another
!      operand, the constraint letter `o' is valid only when accompanied
!      by both `<' (if the target machine has predecrement addressing)
!      and `>' (if the target machine has preincrement addressing).
  
! `V'
!      A memory operand that is not offsettable.  In other words,
!      anything that would fit the `m' constraint but not the `o'
!      constraint.
  
! `<'
!      A memory operand with autodecrement addressing (either
!      predecrement or postdecrement) is allowed.  In inline `asm' this
!      constraint is only allowed if the operand is used exactly once in
!      an instruction that can handle the side-effects.  Not using an
!      operand with `<' in constraint string in the inline `asm' pattern
!      at all or using it in multiple instructions isn't valid, because
!      the side-effects wouldn't be performed or would be performed more
!      than once.  Furthermore, on some targets the operand with `<' in
!      constraint string must be accompanied by special instruction
!      suffixes like `%U0' instruction suffix on PowerPC or `%P0' on
!      IA-64.
  
! `>'
!      A memory operand with autoincrement addressing (either
!      preincrement or postincrement) is allowed.  In inline `asm' the
!      same restrictions as for `<' apply.
  
! `r'
       A register operand is allowed provided that it is in a general
       register.
  
! `i'
       An immediate integer operand (one with constant value) is allowed.
       This includes symbolic constants whose values will be known only at
       assembly time or later.
  
! `n'
       An immediate integer operand with a known numeric value is allowed.
       Many systems cannot support assembly-time constants for operands
       less than a word wide.  Constraints for these operands should use
!      `n' rather than `i'.
  
! `I', `J', `K', ... `P'
!      Other letters in the range `I' through `P' may be defined in a
       machine-dependent fashion to permit immediate integer operands with
       explicit integer values in specified ranges.  For example, on the
!      68000, `I' is defined to stand for the range of values 1 to 8.
       This is the range permitted as a shift count in the shift
       instructions.
  
! `E'
!      An immediate floating operand (expression code `const_double') is
       allowed, but only if the target floating point format is the same
       as that of the host machine (on which the compiler is running).
  
! `F'
!      An immediate floating operand (expression code `const_double' or
!      `const_vector') is allowed.
  
! `G', `H'
!      `G' and `H' may be defined in a machine-dependent fashion to
!      permit immediate floating operands in particular ranges of values.
  
! `s'
!      An immediate integer operand whose value is not an explicit
!      integer is allowed.
  
       This might appear strange; if an insn allows a constant operand
!      with a value not known at compile time, it certainly must allow
!      any known value.  So why use `s' instead of `i'?  Sometimes it
!      allows better code to be generated.
  
       For example, on the 68000 in a fullword instruction it is possible
       to use an immediate operand; but if the immediate value is between
       -128 and 127, better code results from loading the value into a
!      register and using the register.  This is because the load into
!      the register can be done with a `moveq' instruction.  We arrange
!      for this to happen by defining the letter `K' to mean "any integer
!      outside the range -128 to 127", and then specifying `Ks' in the
       operand constraints.
  
! `g'
       Any register, memory or immediate integer operand is allowed,
       except for registers that are not general registers.
  
! `X'
       Any operand whatsoever is allowed.
  
! `0', `1', `2', ... `9'
       An operand that matches the specified operand number is allowed.
       If a digit is used together with letters within the same
       alternative, the digit should come last.
  
       This number is allowed to be more than a single digit.  If multiple
       digits are encountered consecutively, they are interpreted as a
!      single decimal integer.  There is scant chance for ambiguity,
!      since to-date it has never been desirable that `10' be interpreted
!      as matching either operand 1 _or_ operand 0.  Should this be
!      desired, one can use multiple alternatives instead.
  
       This is called a "matching constraint" and what it really means is
       that the assembler has only a single operand that fills two roles
!      which `asm' distinguishes.  For example, an add instruction uses
!      two input operands and an output operand, but on most CISC
!      machines an add instruction really has only two operands, one of
!      them an input-output operand:
  
            addl #35,r12
  
--- 31497,31606 ----
       on the other addressing modes that the machine supports.
  
       Note that in an output operand which can be matched by another
!      operand, the constraint letter 'o' is valid only when accompanied
!      by both '<' (if the target machine has predecrement addressing) and
!      '>' (if the target machine has preincrement addressing).
  
! 'V'
!      A memory operand that is not offsettable.  In other words, anything
!      that would fit the 'm' constraint but not the 'o' constraint.
  
! '<'
!      A memory operand with autodecrement addressing (either predecrement
!      or postdecrement) is allowed.  In inline 'asm' this constraint is
!      only allowed if the operand is used exactly once in an instruction
!      that can handle the side-effects.  Not using an operand with '<' in
!      constraint string in the inline 'asm' pattern at all or using it in
!      multiple instructions isn't valid, because the side-effects
!      wouldn't be performed or would be performed more than once.
!      Furthermore, on some targets the operand with '<' in constraint
!      string must be accompanied by special instruction suffixes like
!      '%U0' instruction suffix on PowerPC or '%P0' on IA-64.
  
! '>'
!      A memory operand with autoincrement addressing (either preincrement
!      or postincrement) is allowed.  In inline 'asm' the same
!      restrictions as for '<' apply.
  
! 'r'
       A register operand is allowed provided that it is in a general
       register.
  
! 'i'
       An immediate integer operand (one with constant value) is allowed.
       This includes symbolic constants whose values will be known only at
       assembly time or later.
  
! 'n'
       An immediate integer operand with a known numeric value is allowed.
       Many systems cannot support assembly-time constants for operands
       less than a word wide.  Constraints for these operands should use
!      'n' rather than 'i'.
  
! 'I', 'J', 'K', ... 'P'
!      Other letters in the range 'I' through 'P' may be defined in a
       machine-dependent fashion to permit immediate integer operands with
       explicit integer values in specified ranges.  For example, on the
!      68000, 'I' is defined to stand for the range of values 1 to 8.
       This is the range permitted as a shift count in the shift
       instructions.
  
! 'E'
!      An immediate floating operand (expression code 'const_double') is
       allowed, but only if the target floating point format is the same
       as that of the host machine (on which the compiler is running).
  
! 'F'
!      An immediate floating operand (expression code 'const_double' or
!      'const_vector') is allowed.
  
! 'G', 'H'
!      'G' and 'H' may be defined in a machine-dependent fashion to permit
!      immediate floating operands in particular ranges of values.
  
! 's'
!      An immediate integer operand whose value is not an explicit integer
!      is allowed.
  
       This might appear strange; if an insn allows a constant operand
!      with a value not known at compile time, it certainly must allow any
!      known value.  So why use 's' instead of 'i'?  Sometimes it allows
!      better code to be generated.
  
       For example, on the 68000 in a fullword instruction it is possible
       to use an immediate operand; but if the immediate value is between
       -128 and 127, better code results from loading the value into a
!      register and using the register.  This is because the load into the
!      register can be done with a 'moveq' instruction.  We arrange for
!      this to happen by defining the letter 'K' to mean "any integer
!      outside the range -128 to 127", and then specifying 'Ks' in the
       operand constraints.
  
! 'g'
       Any register, memory or immediate integer operand is allowed,
       except for registers that are not general registers.
  
! 'X'
       Any operand whatsoever is allowed.
  
! '0', '1', '2', ... '9'
       An operand that matches the specified operand number is allowed.
       If a digit is used together with letters within the same
       alternative, the digit should come last.
  
       This number is allowed to be more than a single digit.  If multiple
       digits are encountered consecutively, they are interpreted as a
!      single decimal integer.  There is scant chance for ambiguity, since
!      to-date it has never been desirable that '10' be interpreted as
!      matching either operand 1 _or_ operand 0.  Should this be desired,
!      one can use multiple alternatives instead.
  
       This is called a "matching constraint" and what it really means is
       that the assembler has only a single operand that fills two roles
!      which 'asm' distinguishes.  For example, an add instruction uses
!      two input operands and an output operand, but on most CISC machines
!      an add instruction really has only two operands, one of them an
!      input-output operand:
  
            addl #35,r12
  
*************** whitespace
*** 31801,31819 ****
       smaller number than the number of the operand that uses it in the
       constraint.
  
! `p'
       An operand that is a valid memory address is allowed.  This is for
       "load address" and "push address" instructions.
  
!      `p' in the constraint must be accompanied by `address_operand' as
!      the predicate in the `match_operand'.  This predicate interprets
!      the mode specified in the `match_operand' as the mode of the memory
       reference for which the address would be valid.
  
  OTHER-LETTERS
       Other letters can be defined in machine-dependent fashion to stand
       for particular classes of registers or other arbitrary operand
!      types.  `d', `a' and `f' are defined on the 68000/68020 to stand
       for data, address and floating point registers.
  
  
--- 31610,31628 ----
       smaller number than the number of the operand that uses it in the
       constraint.
  
! 'p'
       An operand that is a valid memory address is allowed.  This is for
       "load address" and "push address" instructions.
  
!      'p' in the constraint must be accompanied by 'address_operand' as
!      the predicate in the 'match_operand'.  This predicate interprets
!      the mode specified in the 'match_operand' as the mode of the memory
       reference for which the address would be valid.
  
  OTHER-LETTERS
       Other letters can be defined in machine-dependent fashion to stand
       for particular classes of registers or other arbitrary operand
!      types.  'd', 'a' and 'f' are defined on the 68000/68020 to stand
       for data, address and floating point registers.
  
  
*************** alternative.  All operands for a single
*** 31837,31853 ****
  number of alternatives.
  
   So the first alternative for the 68000's logical-or could be written as
! `"+m" (output) : "ir" (input)'.  The second could be `"+r" (output):
  "irm" (input)'.  However, the fact that two memory locations cannot be
! used in a single instruction prevents simply using `"+rm" (output) :
  "irm" (input)'.  Using multi-alternatives, this might be written as
! `"+m,r" (output) : "ir,irm" (input)'.  This describes all the available
  alternatives to the compiler, allowing it to choose the most efficient
  one for the current conditions.
  
   There is no way within the template to determine which alternative was
! chosen.  However you may be able to wrap your `asm' statements with
! builtins such as `__builtin_constant_p' to achieve the desired results.
  
  
  File: gcc.info,  Node: Modifiers,  Next: Machine Constraints,  Prev: Multi-Alternative,  Up: Constraints
--- 31646,31662 ----
  number of alternatives.
  
   So the first alternative for the 68000's logical-or could be written as
! '"+m" (output) : "ir" (input)'.  The second could be '"+r" (output):
  "irm" (input)'.  However, the fact that two memory locations cannot be
! used in a single instruction prevents simply using '"+rm" (output) :
  "irm" (input)'.  Using multi-alternatives, this might be written as
! '"+m,r" (output) : "ir,irm" (input)'.  This describes all the available
  alternatives to the compiler, allowing it to choose the most efficient
  one for the current conditions.
  
   There is no way within the template to determine which alternative was
! chosen.  However you may be able to wrap your 'asm' statements with
! builtins such as '__builtin_constant_p' to achieve the desired results.
  
  
  File: gcc.info,  Node: Modifiers,  Next: Machine Constraints,  Prev: Multi-Alternative,  Up: Constraints
*************** File: gcc.info,  Node: Modifiers,  Next:
*** 31857,31918 ****
  
  Here are constraint modifier characters.
  
! `='
       Means that this operand is written to by this instruction: the
       previous value is discarded and replaced by new data.
  
! `+'
       Means that this operand is both read and written by the
       instruction.
  
       When the compiler fixes up the operands to satisfy the constraints,
       it needs to know which operands are read by the instruction and
!      which are written by it.  `=' identifies an operand which is only
!      written; `+' identifies an operand that is both read and written;
       all other operands are assumed to only be read.
  
!      If you specify `=' or `+' in a constraint, you put it in the first
       character of the constraint string.
  
! `&'
       Means (in a particular alternative) that this operand is an
       "earlyclobber" operand, which is written before the instruction is
!      finished using the input operands.  Therefore, this operand may
!      not lie in a register that is read by the instruction or as part
!      of any memory address.
  
!      `&' applies only to the alternative in which it is written.  In
       constraints with multiple alternatives, sometimes one alternative
!      requires `&' while others do not.  See, for example, the `movdf'
       insn of the 68000.
  
       A operand which is read by the instruction can be tied to an
       earlyclobber operand if its only use as an input occurs before the
       early result is written.  Adding alternatives of this form often
       allows GCC to produce better code when only some of the read
!      operands can be affected by the earlyclobber. See, for example,
!      the `mulsi3' insn of the ARM.
  
       Furthermore, if the "earlyclobber" operand is also a read/write
       operand, then that operand is written only after it's used.
  
!      `&' does not obviate the need to write `=' or `+'.  As
       "earlyclobber" operands are always written, a read-only
       "earlyclobber" operand is ill-formed and will be rejected by the
       compiler.
  
! `%'
       Declares the instruction to be commutative for this operand and the
       following operand.  This means that the compiler may interchange
       the two operands if that is the cheapest way to make all operands
!      fit the constraints.  `%' applies to all alternatives and must
       appear as the first character in the constraint.  Only read-only
!      operands can use `%'.
  
       GCC can only handle one commutative pair in an asm; if you use
       more, the compiler may fail.  Note that you need not use the
!      modifier if the two alternatives are strictly identical; this
!      would only waste time in the reload pass.
  
  
  File: gcc.info,  Node: Machine Constraints,  Prev: Modifiers,  Up: Constraints
--- 31666,31727 ----
  
  Here are constraint modifier characters.
  
! '='
       Means that this operand is written to by this instruction: the
       previous value is discarded and replaced by new data.
  
! '+'
       Means that this operand is both read and written by the
       instruction.
  
       When the compiler fixes up the operands to satisfy the constraints,
       it needs to know which operands are read by the instruction and
!      which are written by it.  '=' identifies an operand which is only
!      written; '+' identifies an operand that is both read and written;
       all other operands are assumed to only be read.
  
!      If you specify '=' or '+' in a constraint, you put it in the first
       character of the constraint string.
  
! '&'
       Means (in a particular alternative) that this operand is an
       "earlyclobber" operand, which is written before the instruction is
!      finished using the input operands.  Therefore, this operand may not
!      lie in a register that is read by the instruction or as part of any
!      memory address.
  
!      '&' applies only to the alternative in which it is written.  In
       constraints with multiple alternatives, sometimes one alternative
!      requires '&' while others do not.  See, for example, the 'movdf'
       insn of the 68000.
  
       A operand which is read by the instruction can be tied to an
       earlyclobber operand if its only use as an input occurs before the
       early result is written.  Adding alternatives of this form often
       allows GCC to produce better code when only some of the read
!      operands can be affected by the earlyclobber.  See, for example,
!      the 'mulsi3' insn of the ARM.
  
       Furthermore, if the "earlyclobber" operand is also a read/write
       operand, then that operand is written only after it's used.
  
!      '&' does not obviate the need to write '=' or '+'.  As
       "earlyclobber" operands are always written, a read-only
       "earlyclobber" operand is ill-formed and will be rejected by the
       compiler.
  
! '%'
       Declares the instruction to be commutative for this operand and the
       following operand.  This means that the compiler may interchange
       the two operands if that is the cheapest way to make all operands
!      fit the constraints.  '%' applies to all alternatives and must
       appear as the first character in the constraint.  Only read-only
!      operands can use '%'.
  
       GCC can only handle one commutative pair in an asm; if you use
       more, the compiler may fail.  Note that you need not use the
!      modifier if the two alternatives are strictly identical; this would
!      only waste time in the reload pass.
  
  
  File: gcc.info,  Node: Machine Constraints,  Prev: Modifiers,  Up: Constraints
*************** File: gcc.info,  Node: Machine Constrain
*** 31921,33362 ****
  ............................................
  
  Whenever possible, you should use the general-purpose constraint letters
! in `asm' arguments, since they will convey meaning more readily to
! people reading your code.  Failing that, use the constraint letters
! that usually have very similar meanings across architectures.  The most
! commonly used constraints are `m' and `r' (for memory and
  general-purpose registers respectively; *note Simple Constraints::), and
! `I', usually the letter indicating the most common immediate-constant
  format.
  
   Each architecture defines additional constraints.  These constraints
  are used by the compiler itself for instruction generation, as well as
! for `asm' statements; therefore, some of the constraints are not
! particularly useful for `asm'.  Here is a summary of some of the
  machine-dependent constraints available on some particular machines; it
! includes both constraints that are useful for `asm' and constraints
! that aren't.  The compiler source file mentioned in the table heading
! for each architecture is the definitive reference for the meanings of
! that architecture's constraints.
! 
! _AArch64 family--`config/aarch64/constraints.md'_
  
!     `k'
!           The stack pointer register (`SP')
  
!     `w'
            Floating point or SIMD vector register
  
!     `I'
            Integer constant that is valid as an immediate operand in an
!           `ADD' instruction
  
!     `J'
            Integer constant that is valid as an immediate operand in a
!           `SUB' instruction (once negated)
  
!     `K'
            Integer constant that can be used with a 32-bit logical
            instruction
  
!     `L'
            Integer constant that can be used with a 64-bit logical
            instruction
  
!     `M'
            Integer constant that is valid as an immediate operand in a
!           32-bit `MOV' pseudo instruction. The `MOV' may be assembled
            to one of several different machine instructions depending on
            the value
  
!     `N'
            Integer constant that is valid as an immediate operand in a
!           64-bit `MOV' pseudo instruction
  
!     `S'
            An absolute symbolic address or a label reference
  
!     `Y'
            Floating point constant zero
  
!     `Z'
            Integer constant zero
  
!     `Ush'
!           The high part (bits 12 and upwards) of the pc-relative
!           address of a symbol within 4GB of the instruction
  
!     `Q'
            A memory address which uses a single base register with no
            offset
  
!     `Ump'
!           A memory address suitable for a load/store pair instruction
!           in SI, DI, SF and DF modes
! 
! 
! _ARC --`config/arc/constraints.md'_
  
!     `q'
!           Registers usable in ARCompact 16-bit instructions: `r0'-`r3',
!           `r12'-`r15'.  This constraint can only match when the `-mq'
            option is in effect.
  
!     `e'
!           Registers usable as base-regs of memory addresses in
!           ARCompact 16-bit memory instructions: `r0'-`r3', `r12'-`r15',
!           `sp'.  This constraint can only match when the `-mq' option
!           is in effect.
! 
!     `D'
!           ARC FPX (dpfp) 64-bit registers. `D0', `D1'.
  
!     `I'
            A signed 12-bit integer constant.
  
!     `Cal'
!           constant for arithmetic/logical operations.  This might be
!           any constant that can be put into a long immediate by the
!           assmbler or linker without involving a PIC relocation.
  
!     `K'
            A 3-bit unsigned integer constant.
  
!     `L'
            A 6-bit unsigned integer constant.
  
!     `CnL'
            One's complement of a 6-bit unsigned integer constant.
  
!     `CmL'
            Two's complement of a 6-bit unsigned integer constant.
  
!     `M'
            A 5-bit unsigned integer constant.
  
!     `O'
            A 7-bit unsigned integer constant.
  
!     `P'
            A 8-bit unsigned integer constant.
  
!     `H'
            Any const_double value.
  
! _ARM family--`config/arm/constraints.md'_
  
!     `h'
!           In Thumb state, the core registers `r8'-`r15'.
  
!     `k'
            The stack pointer register.
  
!     `l'
!           In Thumb State the core registers `r0'-`r7'.  In ARM state
!           this is an alias for the `r' constraint.
  
!     `t'
!           VFP floating-point registers `s0'-`s31'.  Used for 32 bit
            values.
  
!     `w'
!           VFP floating-point registers `d0'-`d31' and the appropriate
!           subset `d0'-`d15' based on command line options.  Used for 64
            bit values only.  Not valid for Thumb1.
  
!     `y'
            The iWMMX co-processor registers.
  
!     `z'
            The iWMMX GR registers.
  
!     `G'
            The floating-point constant 0.0
  
!     `I'
            Integer that is valid as an immediate operand in a data
!           processing instruction.  That is, an integer in the range 0
!           to 255 rotated by a multiple of 2
  
!     `J'
            Integer in the range -4095 to 4095
  
!     `K'
!           Integer that satisfies constraint `I' when inverted (ones
            complement)
  
!     `L'
!           Integer that satisfies constraint `I' when negated (twos
            complement)
  
!     `M'
            Integer in the range 0 to 32
  
!     `Q'
            A memory reference where the exact address is in a single
!           register (``m'' is preferable for `asm' statements)
  
!     `R'
            An item in the constant pool
  
!     `S'
            A symbol in the text segment of the current file
  
!     `Uv'
            A memory reference suitable for VFP load/store insns
            (reg+constant offset)
  
!     `Uy'
            A memory reference suitable for iWMMXt load/store
            instructions.
  
!     `Uq'
            A memory reference suitable for the ARMv4 ldrsb instruction.
  
! _AVR family--`config/avr/constraints.md'_
! 
!     `l'
            Registers from r0 to r15
  
!     `a'
            Registers from r16 to r23
  
!     `d'
            Registers from r16 to r31
  
!     `w'
            Registers from r24 to r31.  These registers can be used in
!           `adiw' command
  
!     `e'
            Pointer register (r26-r31)
  
!     `b'
            Base pointer register (r28-r31)
  
!     `q'
            Stack pointer register (SPH:SPL)
  
!     `t'
            Temporary register r0
  
!     `x'
            Register pair X (r27:r26)
  
!     `y'
            Register pair Y (r29:r28)
  
!     `z'
            Register pair Z (r31:r30)
  
!     `I'
            Constant greater than -1, less than 64
  
!     `J'
            Constant greater than -64, less than 1
  
!     `K'
            Constant integer 2
  
!     `L'
            Constant integer 0
  
!     `M'
            Constant that fits in 8 bits
  
!     `N'
            Constant integer -1
  
!     `O'
            Constant integer 8, 16, or 24
  
!     `P'
            Constant integer 1
  
!     `G'
            A floating point constant 0.0
  
!     `Q'
            A memory address based on Y or Z pointer with displacement.
  
! _Blackfin family--`config/bfin/constraints.md'_
! 
!     `a'
            P register
  
!     `d'
            D register
  
!     `z'
            A call clobbered P register.
  
!     `qN'
            A single register.  If N is in the range 0 to 7, the
!           corresponding D register.  If it is `A', then the register P0.
  
!     `D'
            Even-numbered D register
  
!     `W'
            Odd-numbered D register
  
!     `e'
            Accumulator register.
  
!     `A'
            Even-numbered accumulator register.
  
!     `B'
            Odd-numbered accumulator register.
  
!     `b'
            I register
  
!     `v'
            B register
  
!     `f'
            M register
  
!     `c'
!           Registers used for circular buffering, i.e. I, B, or L
            registers.
  
!     `C'
            The CC register.
  
!     `t'
            LT0 or LT1.
  
!     `k'
            LC0 or LC1.
  
!     `u'
            LB0 or LB1.
  
!     `x'
            Any D, P, B, M, I or L register.
  
!     `y'
            Additional registers typically used only in prologues and
            epilogues: RETS, RETN, RETI, RETX, RETE, ASTAT, SEQSTAT and
            USP.
  
!     `w'
            Any register except accumulators or CC.
  
!     `Ksh'
            Signed 16 bit integer (in the range -32768 to 32767)
  
!     `Kuh'
            Unsigned 16 bit integer (in the range 0 to 65535)
  
!     `Ks7'
            Signed 7 bit integer (in the range -64 to 63)
  
!     `Ku7'
            Unsigned 7 bit integer (in the range 0 to 127)
  
!     `Ku5'
            Unsigned 5 bit integer (in the range 0 to 31)
  
!     `Ks4'
            Signed 4 bit integer (in the range -8 to 7)
  
!     `Ks3'
            Signed 3 bit integer (in the range -3 to 4)
  
!     `Ku3'
            Unsigned 3 bit integer (in the range 0 to 7)
  
!     `PN'
            Constant N, where N is a single-digit constant in the range 0
            to 4.
  
!     `PA'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use with either accumulator.
  
!     `PB'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use only with accumulator A1.
  
!     `M1'
            Constant 255.
  
!     `M2'
            Constant 65535.
  
!     `J'
            An integer constant with exactly a single bit set.
  
!     `L'
            An integer constant with all bits set except exactly one.
  
!     `H'
  
!     `Q'
            Any SYMBOL_REF.
  
! _CR16 Architecture--`config/cr16/cr16.h'_
  
!     `b'
            Registers from r0 to r14 (registers without stack pointer)
  
!     `t'
            Register from r0 to r11 (all 16-bit registers)
  
!     `p'
            Register from r12 to r15 (all 32-bit registers)
  
!     `I'
            Signed constant that fits in 4 bits
  
!     `J'
            Signed constant that fits in 5 bits
  
!     `K'
            Signed constant that fits in 6 bits
  
!     `L'
            Unsigned constant that fits in 4 bits
  
!     `M'
            Signed constant that fits in 32 bits
  
!     `N'
            Check for 64 bits wide constants for add/sub instructions
  
!     `G'
            Floating point constant that is legal for store immediate
  
! _Epiphany--`config/epiphany/constraints.md'_
! 
!     `U16'
            An unsigned 16-bit constant.
  
!     `K'
            An unsigned 5-bit constant.
  
!     `L'
            A signed 11-bit constant.
  
!     `Cm1'
!           A signed 11-bit constant added to -1.  Can only match when
!           the `-m1reg-REG' option is active.
  
!     `Cl1'
            Left-shift of -1, i.e., a bit mask with a block of leading
            ones, the rest being a block of trailing zeroes.  Can only
!           match when the `-m1reg-REG' option is active.
  
!     `Cr1'
            Right-shift of -1, i.e., a bit mask with a trailing block of
            ones, the rest being zeroes.  Or to put it another way, one
            less than a power of two.  Can only match when the
!           `-m1reg-REG' option is active.
  
!     `Cal'
!           Constant for arithmetic/logical operations.  This is like
!           `i', except that for position independent code, no symbols /
            expressions needing relocations are allowed.
  
!     `Csy'
            Symbolic constant for call/jump instruction.
  
!     `Rcs'
            The register class usable in short insns.  This is a register
            class constraint, and can thus drive register allocation.
!           This constraint won't match unless `-mprefer-short-insn-regs'
            is in effect.
  
!     `Rsc'
            The the register class of registers that can be used to hold a
            sibcall call address.  I.e., a caller-saved register.
  
!     `Rct'
            Core control register class.
  
!     `Rgs'
            The register group usable in short insns.  This constraint
            does not use a register class, so that it only passively
            matches suitable registers, and doesn't drive register
            allocation.
  
!     `Rra'
!           Matches the return address if it can be replaced with the
!           link register.
  
!     `Rcc'
            Matches the integer condition code register.
  
!     `Sra'
            Matches the return address if it is in a stack slot.
  
!     `Cfm'
            Matches control register values to switch fp mode, which are
!           encapsulated in `UNSPEC_FP_MODE'.
! 
! _FRV--`config/frv/frv.h'_
  
!     `a'
!           Register in the class `ACC_REGS' (`acc0' to `acc7').
  
!     `b'
!           Register in the class `EVEN_ACC_REGS' (`acc0' to `acc7').
  
!     `c'
!           Register in the class `CC_REGS' (`fcc0' to `fcc3' and `icc0'
!           to `icc3').
  
!     `d'
!           Register in the class `GPR_REGS' (`gr0' to `gr63').
  
!     `e'
!           Register in the class `EVEN_REGS' (`gr0' to `gr63').  Odd
!           registers are excluded not in the class but through the use
!           of a machine mode larger than 4 bytes.
  
!     `f'
!           Register in the class `FPR_REGS' (`fr0' to `fr63').
  
!     `h'
!           Register in the class `FEVEN_REGS' (`fr0' to `fr63').  Odd
!           registers are excluded not in the class but through the use
!           of a machine mode larger than 4 bytes.
  
!     `l'
!           Register in the class `LR_REG' (the `lr' register).
  
!     `q'
!           Register in the class `QUAD_REGS' (`gr2' to `gr63').
!           Register numbers not divisible by 4 are excluded not in the
!           class but through the use of a machine mode larger than 8
!           bytes.
  
!     `t'
!           Register in the class `ICC_REGS' (`icc0' to `icc3').
  
!     `u'
!           Register in the class `FCC_REGS' (`fcc0' to `fcc3').
  
!     `v'
!           Register in the class `ICR_REGS' (`cc4' to `cc7').
  
!     `w'
!           Register in the class `FCR_REGS' (`cc0' to `cc3').
  
!     `x'
!           Register in the class `QUAD_FPR_REGS' (`fr0' to `fr63').
            Register numbers not divisible by 4 are excluded not in the
            class but through the use of a machine mode larger than 8
            bytes.
  
!     `z'
!           Register in the class `SPR_REGS' (`lcr' and `lr').
  
!     `A'
!           Register in the class `QUAD_ACC_REGS' (`acc0' to `acc7').
  
!     `B'
!           Register in the class `ACCG_REGS' (`accg0' to `accg7').
  
!     `C'
!           Register in the class `CR_REGS' (`cc0' to `cc7').
  
!     `G'
            Floating point constant zero
  
!     `I'
            6-bit signed integer constant
  
!     `J'
            10-bit signed integer constant
  
!     `L'
            16-bit signed integer constant
  
!     `M'
            16-bit unsigned integer constant
  
!     `N'
            12-bit signed integer constant that is negative--i.e. in the
            range of -2048 to -1
  
!     `O'
            Constant zero
  
!     `P'
!           12-bit signed integer constant that is greater than
!           zero--i.e. in the range of 1 to 2047.
! 
! 
! _FT32--`config/ft32/constraints.md'_
  
!     `A'
            An absolute address
  
!     `B'
            An offset address
  
!     `W'
            A register indirect memory operand
  
!     `e'
            An offset address.
  
!     `f'
            An offset address.
  
!     `O'
            The constant zero or one
  
!     `I'
            A 16-bit signed constant (-32768 ... 32767)
  
!     `w'
            A bitfield mask suitable for bext or bins
  
!     `x'
            An inverted bitfield mask suitable for bext or bins
  
!     `L'
            A 16-bit unsigned constant, multiple of 4 (0 ... 65532)
  
!     `S'
            A 20-bit signed constant (-524288 ... 524287)
  
!     `b'
            A constant for a bitfield width (1 ... 16)
  
!     `KA'
            A 10-bit signed constant (-512 ... 511)
  
! 
! _Hewlett-Packard PA-RISC--`config/pa/pa.h'_
! 
!     `a'
            General register 1
  
!     `f'
            Floating point register
  
!     `q'
            Shift amount register
  
!     `x'
            Floating point register (deprecated)
  
!     `y'
            Upper floating point register (32-bit), floating point
            register (64-bit)
  
!     `Z'
            Any register
  
!     `I'
            Signed 11-bit integer constant
  
!     `J'
            Signed 14-bit integer constant
  
!     `K'
!           Integer constant that can be deposited with a `zdepi'
            instruction
  
!     `L'
            Signed 5-bit integer constant
  
!     `M'
            Integer constant 0
  
!     `N'
!           Integer constant that can be loaded with a `ldil' instruction
  
!     `O'
            Integer constant whose value plus one is a power of 2
  
!     `P'
!           Integer constant that can be used for `and' operations in
!           `depi' and `extru' instructions
  
!     `S'
            Integer constant 31
  
!     `U'
            Integer constant 63
  
!     `G'
            Floating-point constant 0.0
  
!     `A'
!           A `lo_sum' data-linkage-table memory operand
  
!     `Q'
            A memory operand that can be used as the destination operand
            of an integer store instruction
  
!     `R'
            A scaled or unscaled indexed memory operand
  
!     `T'
            A memory operand for floating-point loads and stores
  
!     `W'
            A register indirect memory operand
  
! _Intel IA-64--`config/ia64/ia64.h'_
! 
!     `a'
!           General register `r0' to `r3' for `addl' instruction
  
!     `b'
            Branch register
  
!     `c'
!           Predicate register (`c' as in "conditional")
  
!     `d'
            Application register residing in M-unit
  
!     `e'
            Application register residing in I-unit
  
!     `f'
            Floating-point register
  
!     `m'
!           Memory operand.  If used together with `<' or `>', the
!           operand can have postincrement and postdecrement which
!           require printing with `%Pn' on IA-64.
  
!     `G'
            Floating-point constant 0.0 or 1.0
  
!     `I'
            14-bit signed integer constant
  
!     `J'
            22-bit signed integer constant
  
!     `K'
            8-bit signed integer constant for logical instructions
  
!     `L'
            8-bit adjusted signed integer constant for compare pseudo-ops
  
!     `M'
            6-bit unsigned integer constant for shift counts
  
!     `N'
            9-bit signed integer constant for load and store
            postincrements
  
!     `O'
            The constant zero
  
!     `P'
!           0 or -1 for `dep' instruction
  
!     `Q'
            Non-volatile memory for floating-point loads and stores
  
!     `R'
!           Integer constant in the range 1 to 4 for `shladd' instruction
  
!     `S'
            Memory operand except postincrement and postdecrement.  This
!           is now roughly the same as `m' when not used together with `<'
!           or `>'.
! 
! _M32C--`config/m32c/m32c.c'_
  
!     `Rsp'
!     `Rfb'
!     `Rsb'
!           `$sp', `$fb', `$sb'.
  
!     `Rcr'
            Any control register, when they're 16 bits wide (nothing if
            control registers are 24 bits wide)
  
!     `Rcl'
            Any control register, when they're 24 bits wide.
  
!     `R0w'
!     `R1w'
!     `R2w'
!     `R3w'
            $r0, $r1, $r2, $r3.
  
!     `R02'
            $r0 or $r2, or $r2r0 for 32 bit values.
  
!     `R13'
            $r1 or $r3, or $r3r1 for 32 bit values.
  
!     `Rdi'
            A register that can hold a 64 bit value.
  
!     `Rhl'
            $r0 or $r1 (registers with addressable high/low bytes)
  
!     `R23'
            $r2 or $r3
  
!     `Raa'
            Address registers
  
!     `Raw'
            Address registers when they're 16 bits wide.
  
!     `Ral'
            Address registers when they're 24 bits wide.
  
!     `Rqi'
            Registers that can hold QI values.
  
!     `Rad'
            Registers that can be used with displacements ($a0, $a1, $sb).
  
!     `Rsi'
            Registers that can hold 32 bit values.
  
!     `Rhi'
            Registers that can hold 16 bit values.
  
!     `Rhc'
            Registers chat can hold 16 bit values, including all control
            registers.
  
!     `Rra'
            $r0 through R1, plus $a0 and $a1.
  
!     `Rfl'
            The flags register.
  
!     `Rmm'
            The memory-based pseudo-registers $mem0 through $mem15.
  
!     `Rpi'
            Registers that can hold pointers (16 bit registers for r8c,
            m16c; 24 bit registers for m32cm, m32c).
  
!     `Rpa'
            Matches multiple registers in a PARALLEL to form a larger
            register.  Used to match function return values.
  
!     `Is3'
            -8 ... 7
  
!     `IS1'
            -128 ... 127
  
!     `IS2'
            -32768 ... 32767
  
!     `IU2'
            0 ... 65535
  
!     `In4'
            -8 ... -1 or 1 ... 8
  
!     `In5'
            -16 ... -1 or 1 ... 16
  
!     `In6'
            -32 ... -1 or 1 ... 32
  
!     `IM2'
            -65536 ... -1
  
!     `Ilb'
            An 8 bit value with exactly one bit set.
  
!     `Ilw'
            A 16 bit value with exactly one bit set.
  
!     `Sd'
            The common src/dest memory addressing modes.
  
!     `Sa'
            Memory addressed using $a0 or $a1.
  
!     `Si'
            Memory addressed with immediate addresses.
  
!     `Ss'
            Memory addressed using the stack pointer ($sp).
  
!     `Sf'
            Memory addressed using the frame base register ($fb).
  
!     `Ss'
            Memory addressed using the small base register ($sb).
  
!     `S1'
            $r1h
  
! _MeP--`config/mep/constraints.md'_
  
!     `a'
            The $sp register.
  
!     `b'
            The $tp register.
  
!     `c'
            Any control register.
  
!     `d'
            Either the $hi or the $lo register.
  
!     `em'
            Coprocessor registers that can be directly loaded ($c0-$c15).
  
!     `ex'
            Coprocessor registers that can be moved to each other.
  
!     `er'
            Coprocessor registers that can be moved to core registers.
  
!     `h'
            The $hi register.
  
!     `j'
            The $rpc register.
  
!     `l'
            The $lo register.
  
!     `t'
            Registers which can be used in $tp-relative addressing.
  
!     `v'
            The $gp register.
  
!     `x'
            The coprocessor registers.
  
!     `y'
            The coprocessor control registers.
  
!     `z'
            The $0 register.
  
!     `A'
            User-defined register set A.
  
!     `B'
            User-defined register set B.
  
!     `C'
            User-defined register set C.
  
!     `D'
            User-defined register set D.
  
!     `I'
            Offsets for $gp-rel addressing.
  
!     `J'
            Constants that can be used directly with boolean insns.
  
!     `K'
            Constants that can be moved directly to registers.
  
!     `L'
            Small constants that can be added to registers.
  
!     `M'
            Long shift counts.
  
!     `N'
            Small constants that can be compared to registers.
  
!     `O'
            Constants that can be loaded into the top half of registers.
  
!     `S'
            Signed 8-bit immediates.
  
!     `T'
            Symbols encoded for $tp-rel or $gp-rel addressing.
  
!     `U'
            Non-constant addresses for loading/saving coprocessor
            registers.
  
!     `W'
            The top half of a symbol's value.
  
!     `Y'
            A register indirect address without offset.
  
!     `Z'
            Symbolic references to the control bus.
  
  
! _MicroBlaze--`config/microblaze/constraints.md'_
! 
!     `d'
!           A general register (`r0' to `r31').
! 
!     `z'
!           A status register (`rmsr', `$fcc1' to `$fcc7').
! 
! 
! _MIPS--`config/mips/constraints.md'_
  
!     `d'
!           An address register.  This is equivalent to `r' unless
            generating MIPS16 code.
  
!     `f'
            A floating-point register (if available).
  
!     `h'
!           Formerly the `hi' register.  This constraint is no longer
            supported.
  
!     `l'
!           The `lo' register.  Use this register to store values that are
            no bigger than a word.
  
!     `x'
!           The concatenated `hi' and `lo' registers.  Use this register
            to store doubleword values.
  
!     `c'
            A register suitable for use in an indirect jump.  This will
!           always be `$25' for `-mabicalls'.
  
!     `v'
!           Register `$3'.  Do not use this constraint in new code; it is
            retained only for compatibility with glibc.
  
!     `y'
!           Equivalent to `r'; retained for backwards compatibility.
  
!     `z'
            A floating-point condition code register.
  
!     `I'
            A signed 16-bit constant (for arithmetic instructions).
  
!     `J'
            Integer zero.
  
!     `K'
            An unsigned 16-bit constant (for logic instructions).
  
!     `L'
            A signed 32-bit constant in which the lower 16 bits are zero.
!           Such constants can be loaded using `lui'.
  
!     `M'
!           A constant that cannot be loaded using `lui', `addiu' or
!           `ori'.
  
!     `N'
            A constant in the range -65535 to -1 (inclusive).
  
!     `O'
            A signed 15-bit constant.
  
!     `P'
            A constant in the range 1 to 65535 (inclusive).
  
!     `G'
            Floating-point zero.
  
!     `R'
            An address that can be used in a non-macro load or store.
  
!     `ZC'
            A memory operand whose address is formed by a base register
            and offset that is suitable for use in instructions with the
!           same addressing mode as `ll' and `sc'.
! 
!     `ZD'
!           An address suitable for a `prefetch' instruction, or for any
!           other instruction with the same addressing mode as `prefetch'.
  
! _Motorola 680x0--`config/m68k/constraints.md'_
  
!     `a'
            Address register
  
!     `d'
            Data register
  
!     `f'
            68881 floating-point register, if available
  
!     `I'
            Integer in the range 1 to 8
  
!     `J'
            16-bit signed number
  
!     `K'
            Signed number whose magnitude is greater than 0x80
  
!     `L'
            Integer in the range -8 to -1
  
!     `M'
            Signed number whose magnitude is greater than 0x100
  
!     `N'
            Range 24 to 31, rotatert:SI 8 to 1 expressed as rotate
  
!     `O'
            16 (for rotate using swap)
  
!     `P'
            Range 8 to 15, rotatert:HI 8 to 1 expressed as rotate
  
!     `R'
            Numbers that mov3q can handle
  
!     `G'
            Floating point constant that is not a 68881 constant
  
!     `S'
            Operands that satisfy 'm' when -mpcrel is in effect
  
!     `T'
            Operands that satisfy 's' when -mpcrel is not in effect
  
!     `Q'
            Address register indirect addressing mode
  
!     `U'
            Register offset addressing
  
!     `W'
            const_call_operand
  
!     `Cs'
            symbol_ref or const
  
!     `Ci'
            const_int
  
!     `C0'
            const_int 0
  
!     `Cj'
            Range of signed numbers that don't fit in 16 bits
  
!     `Cmvq'
            Integers valid for mvq
  
!     `Capsw'
            Integers valid for a moveq followed by a swap
  
!     `Cmvz'
            Integers valid for mvz
  
!     `Cmvs'
            Integers valid for mvs
  
!     `Ap'
            push_operand
  
!     `Ac'
            Non-register operands allowed in clr
  
! 
! _Moxie--`config/moxie/constraints.md'_
! 
!     `A'
            An absolute address
  
!     `B'
            An offset address
  
!     `W'
            A register indirect memory operand
  
!     `I'
            A constant in the range of 0 to 255.
  
!     `N'
            A constant in the range of 0 to -255.
  
  
! _MSP430-`config/msp430/constraints.md'_
! 
!     `R12'
            Register R12.
  
!     `R13'
            Register R13.
  
!     `K'
            Integer constant 1.
  
!     `L'
            Integer constant -1^20..1^19.
  
!     `M'
            Integer constant 1-4.
  
!     `Ya'
            Memory references which do not require an extended MOVX
            instruction.
  
!     `Yl'
            Memory reference, labels only.
  
!     `Ys'
            Memory reference, stack only.
  
! 
! _NDS32--`config/nds32/constraints.md'_
! 
!     `w'
            LOW register class $r0 to $r7 constraint for V3/V3M ISA.
! 
!     `l'
            LOW register class $r0 to $r7.
! 
!     `d'
            MIDDLE register class $r0 to $r11, $r16 to $r19.
! 
!     `h'
            HIGH register class $r12 to $r14, $r20 to $r31.
! 
!     `t'
            Temporary assist register $ta (i.e. $r15).
! 
!     `k'
            Stack register $sp.
! 
!     `Iu03'
            Unsigned immediate 3-bit value.
! 
!     `In03'
            Negative immediate 3-bit value in the range of -7-0.
! 
!     `Iu04'
            Unsigned immediate 4-bit value.
! 
!     `Is05'
            Signed immediate 5-bit value.
! 
!     `Iu05'
            Unsigned immediate 5-bit value.
! 
!     `In05'
            Negative immediate 5-bit value in the range of -31-0.
! 
!     `Ip05'
            Unsigned immediate 5-bit value for movpi45 instruction with
            range 16-47.
! 
!     `Iu06'
            Unsigned immediate 6-bit value constraint for addri36.sp
            instruction.
! 
!     `Iu08'
            Unsigned immediate 8-bit value.
! 
!     `Iu09'
            Unsigned immediate 9-bit value.
! 
!     `Is10'
            Signed immediate 10-bit value.
! 
!     `Is11'
            Signed immediate 11-bit value.
! 
!     `Is15'
            Signed immediate 15-bit value.
! 
!     `Iu15'
            Unsigned immediate 15-bit value.
! 
!     `Ic15'
!           A constant which is not in the range of imm15u but ok for
!           bclr instruction.
! 
!     `Ie15'
!           A constant which is not in the range of imm15u but ok for
!           bset instruction.
! 
!     `It15'
!           A constant which is not in the range of imm15u but ok for
!           btgl instruction.
! 
!     `Ii15'
            A constant whose compliment value is in the range of imm15u
            and ok for bitci instruction.
! 
!     `Is16'
            Signed immediate 16-bit value.
! 
!     `Is17'
            Signed immediate 17-bit value.
! 
!     `Is19'
            Signed immediate 19-bit value.
! 
!     `Is20'
            Signed immediate 20-bit value.
! 
!     `Ihig'
            The immediate value that can be simply set high 20-bit.
! 
!     `Izeb'
            The immediate value 0xff.
! 
!     `Izeh'
            The immediate value 0xffff.
! 
!     `Ixls'
            The immediate value 0x01.
! 
!     `Ix11'
            The immediate value 0x7ff.
! 
!     `Ibms'
            The immediate value with power of 2.
! 
!     `Ifex'
            The immediate value with power of 2 minus 1.
! 
!     `U33'
            Memory constraint for 333 format.
! 
!     `U45'
            Memory constraint for 45 format.
! 
!     `U37'
            Memory constraint for 37 format.
  
! _Nios II family--`config/nios2/constraints.md'_
  
!     `I'
            Integer that is valid as an immediate operand in an
!           instruction taking a signed 16-bit number. Range -32768 to
            32767.
  
!     `J'
            Integer that is valid as an immediate operand in an
!           instruction taking an unsigned 16-bit number. Range 0 to
            65535.
  
!     `K'
            Integer that is valid as an immediate operand in an
            instruction taking only the upper 16-bits of a 32-bit number.
            Range 32-bit numbers with the lower 16-bits being 0.
  
!     `L'
            Integer that is valid as an immediate operand for a shift
!           instruction. Range 0 to 31.
  
!     `M'
            Integer that is valid as an immediate operand for only the
!           value 0. Can be used in conjunction with the format modifier
!           `z' to use `r0' instead of `0' in the assembly output.
  
!     `N'
            Integer that is valid as an immediate operand for a custom
!           instruction opcode. Range 0 to 255.
  
!     `P'
            An immediate operand for R2 andchi/andci instructions.
  
!     `S'
            Matches immediates which are addresses in the small data
!           section and therefore can be added to `gp' as a 16-bit
            immediate to re-create their 32-bit value.
  
!     `U'
            Matches constants suitable as an operand for the rdprs and
            cache instructions.
  
!     `v'
            A memory operand suitable for Nios II R2 load/store exclusive
            instructions.
  
!     `w'
            A memory operand suitable for load/store IO and cache
            instructions.
  
  
! _PDP-11--`config/pdp11/constraints.md'_
! 
!     `a'
!           Floating point registers AC0 through AC3.  These can be
!           loaded from/to memory with a single instruction.
! 
!     `d'
            Odd numbered general registers (R1, R3, R5).  These are used
            for 16-bit multiply operations.
  
!     `f'
            Any of the floating point registers (AC0 through AC5).
  
!     `G'
            Floating point constant 0.
  
!     `I'
            An integer constant that fits in 16 bits.
  
!     `J'
            An integer constant whose low order 16 bits are zero.
  
!     `K'
            An integer constant that does not meet the constraints for
!           codes `I' or `J'.
  
!     `L'
            The integer constant 1.
  
!     `M'
            The integer constant -1.
  
!     `N'
            The integer constant 0.
  
!     `O'
            Integer constants -4 through -1 and 1 through 4; shifts by
!           these amounts are handled as multiple single-bit shifts
!           rather than a single variable-length shift.
  
!     `Q'
            A memory reference which requires an additional word (address
            or offset) after the opcode.
  
!     `R'
            A memory reference that is encoded within the opcode.
  
! 
! _PowerPC and IBM RS6000--`config/rs6000/constraints.md'_
! 
!     `b'
            Address base register
  
!     `d'
            Floating point register (containing 64-bit value)
  
!     `f'
            Floating point register (containing 32-bit value)
  
!     `v'
            Altivec vector register
  
!     `wa'
            Any VSX register if the -mvsx option was used or NO_REGS.
  
!           When using any of the register constraints (`wa', `wd', `wf',
!           `wg', `wh', `wi', `wj', `wk', `wl', `wm', `wo', `wp', `wq',
!           `ws', `wt', `wu', `wv', `ww', or `wy') that take VSX
!           registers, you must use `%x<n>' in the template so that the
            correct register is used.  Otherwise the register number
            output in the assembly file will be incorrect if an Altivec
            register is an operand of a VSX instruction that expects VSX
--- 31730,33105 ----
  ............................................
  
  Whenever possible, you should use the general-purpose constraint letters
! in 'asm' arguments, since they will convey meaning more readily to
! people reading your code.  Failing that, use the constraint letters that
! usually have very similar meanings across architectures.  The most
! commonly used constraints are 'm' and 'r' (for memory and
  general-purpose registers respectively; *note Simple Constraints::), and
! 'I', usually the letter indicating the most common immediate-constant
  format.
  
   Each architecture defines additional constraints.  These constraints
  are used by the compiler itself for instruction generation, as well as
! for 'asm' statements; therefore, some of the constraints are not
! particularly useful for 'asm'.  Here is a summary of some of the
  machine-dependent constraints available on some particular machines; it
! includes both constraints that are useful for 'asm' and constraints that
! aren't.  The compiler source file mentioned in the table heading for
! each architecture is the definitive reference for the meanings of that
! architecture's constraints.
  
! _AArch64 family--'config/aarch64/constraints.md'_
!      'k'
!           The stack pointer register ('SP')
  
!      'w'
            Floating point or SIMD vector register
  
!      'I'
            Integer constant that is valid as an immediate operand in an
!           'ADD' instruction
  
!      'J'
            Integer constant that is valid as an immediate operand in a
!           'SUB' instruction (once negated)
  
!      'K'
            Integer constant that can be used with a 32-bit logical
            instruction
  
!      'L'
            Integer constant that can be used with a 64-bit logical
            instruction
  
!      'M'
            Integer constant that is valid as an immediate operand in a
!           32-bit 'MOV' pseudo instruction.  The 'MOV' may be assembled
            to one of several different machine instructions depending on
            the value
  
!      'N'
            Integer constant that is valid as an immediate operand in a
!           64-bit 'MOV' pseudo instruction
  
!      'S'
            An absolute symbolic address or a label reference
  
!      'Y'
            Floating point constant zero
  
!      'Z'
            Integer constant zero
  
!      'Ush'
!           The high part (bits 12 and upwards) of the pc-relative address
!           of a symbol within 4GB of the instruction
  
!      'Q'
            A memory address which uses a single base register with no
            offset
  
!      'Ump'
!           A memory address suitable for a load/store pair instruction in
!           SI, DI, SF and DF modes
  
! _ARC --'config/arc/constraints.md'_
!      'q'
!           Registers usable in ARCompact 16-bit instructions: 'r0'-'r3',
!           'r12'-'r15'.  This constraint can only match when the '-mq'
            option is in effect.
  
!      'e'
!           Registers usable as base-regs of memory addresses in ARCompact
!           16-bit memory instructions: 'r0'-'r3', 'r12'-'r15', 'sp'.
!           This constraint can only match when the '-mq' option is in
!           effect.
!      'D'
!           ARC FPX (dpfp) 64-bit registers.  'D0', 'D1'.
  
!      'I'
            A signed 12-bit integer constant.
  
!      'Cal'
!           constant for arithmetic/logical operations.  This might be any
!           constant that can be put into a long immediate by the assmbler
!           or linker without involving a PIC relocation.
  
!      'K'
            A 3-bit unsigned integer constant.
  
!      'L'
            A 6-bit unsigned integer constant.
  
!      'CnL'
            One's complement of a 6-bit unsigned integer constant.
  
!      'CmL'
            Two's complement of a 6-bit unsigned integer constant.
  
!      'M'
            A 5-bit unsigned integer constant.
  
!      'O'
            A 7-bit unsigned integer constant.
  
!      'P'
            A 8-bit unsigned integer constant.
  
!      'H'
            Any const_double value.
  
! _ARM family--'config/arm/constraints.md'_
  
!      'h'
!           In Thumb state, the core registers 'r8'-'r15'.
  
!      'k'
            The stack pointer register.
  
!      'l'
!           In Thumb State the core registers 'r0'-'r7'.  In ARM state
!           this is an alias for the 'r' constraint.
  
!      't'
!           VFP floating-point registers 's0'-'s31'.  Used for 32 bit
            values.
  
!      'w'
!           VFP floating-point registers 'd0'-'d31' and the appropriate
!           subset 'd0'-'d15' based on command line options.  Used for 64
            bit values only.  Not valid for Thumb1.
  
!      'y'
            The iWMMX co-processor registers.
  
!      'z'
            The iWMMX GR registers.
  
!      'G'
            The floating-point constant 0.0
  
!      'I'
            Integer that is valid as an immediate operand in a data
!           processing instruction.  That is, an integer in the range 0 to
!           255 rotated by a multiple of 2
  
!      'J'
            Integer in the range -4095 to 4095
  
!      'K'
!           Integer that satisfies constraint 'I' when inverted (ones
            complement)
  
!      'L'
!           Integer that satisfies constraint 'I' when negated (twos
            complement)
  
!      'M'
            Integer in the range 0 to 32
  
!      'Q'
            A memory reference where the exact address is in a single
!           register (''m'' is preferable for 'asm' statements)
  
!      'R'
            An item in the constant pool
  
!      'S'
            A symbol in the text segment of the current file
  
!      'Uv'
            A memory reference suitable for VFP load/store insns
            (reg+constant offset)
  
!      'Uy'
            A memory reference suitable for iWMMXt load/store
            instructions.
  
!      'Uq'
            A memory reference suitable for the ARMv4 ldrsb instruction.
  
! _AVR family--'config/avr/constraints.md'_
!      'l'
            Registers from r0 to r15
  
!      'a'
            Registers from r16 to r23
  
!      'd'
            Registers from r16 to r31
  
!      'w'
            Registers from r24 to r31.  These registers can be used in
!           'adiw' command
  
!      'e'
            Pointer register (r26-r31)
  
!      'b'
            Base pointer register (r28-r31)
  
!      'q'
            Stack pointer register (SPH:SPL)
  
!      't'
            Temporary register r0
  
!      'x'
            Register pair X (r27:r26)
  
!      'y'
            Register pair Y (r29:r28)
  
!      'z'
            Register pair Z (r31:r30)
  
!      'I'
            Constant greater than -1, less than 64
  
!      'J'
            Constant greater than -64, less than 1
  
!      'K'
            Constant integer 2
  
!      'L'
            Constant integer 0
  
!      'M'
            Constant that fits in 8 bits
  
!      'N'
            Constant integer -1
  
!      'O'
            Constant integer 8, 16, or 24
  
!      'P'
            Constant integer 1
  
!      'G'
            A floating point constant 0.0
  
!      'Q'
            A memory address based on Y or Z pointer with displacement.
  
! _Blackfin family--'config/bfin/constraints.md'_
!      'a'
            P register
  
!      'd'
            D register
  
!      'z'
            A call clobbered P register.
  
!      'qN'
            A single register.  If N is in the range 0 to 7, the
!           corresponding D register.  If it is 'A', then the register P0.
  
!      'D'
            Even-numbered D register
  
!      'W'
            Odd-numbered D register
  
!      'e'
            Accumulator register.
  
!      'A'
            Even-numbered accumulator register.
  
!      'B'
            Odd-numbered accumulator register.
  
!      'b'
            I register
  
!      'v'
            B register
  
!      'f'
            M register
  
!      'c'
!           Registers used for circular buffering, i.e.  I, B, or L
            registers.
  
!      'C'
            The CC register.
  
!      't'
            LT0 or LT1.
  
!      'k'
            LC0 or LC1.
  
!      'u'
            LB0 or LB1.
  
!      'x'
            Any D, P, B, M, I or L register.
  
!      'y'
            Additional registers typically used only in prologues and
            epilogues: RETS, RETN, RETI, RETX, RETE, ASTAT, SEQSTAT and
            USP.
  
!      'w'
            Any register except accumulators or CC.
  
!      'Ksh'
            Signed 16 bit integer (in the range -32768 to 32767)
  
!      'Kuh'
            Unsigned 16 bit integer (in the range 0 to 65535)
  
!      'Ks7'
            Signed 7 bit integer (in the range -64 to 63)
  
!      'Ku7'
            Unsigned 7 bit integer (in the range 0 to 127)
  
!      'Ku5'
            Unsigned 5 bit integer (in the range 0 to 31)
  
!      'Ks4'
            Signed 4 bit integer (in the range -8 to 7)
  
!      'Ks3'
            Signed 3 bit integer (in the range -3 to 4)
  
!      'Ku3'
            Unsigned 3 bit integer (in the range 0 to 7)
  
!      'PN'
            Constant N, where N is a single-digit constant in the range 0
            to 4.
  
!      'PA'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use with either accumulator.
  
!      'PB'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use only with accumulator A1.
  
!      'M1'
            Constant 255.
  
!      'M2'
            Constant 65535.
  
!      'J'
            An integer constant with exactly a single bit set.
  
!      'L'
            An integer constant with all bits set except exactly one.
  
!      'H'
  
!      'Q'
            Any SYMBOL_REF.
  
! _CR16 Architecture--'config/cr16/cr16.h'_
  
!      'b'
            Registers from r0 to r14 (registers without stack pointer)
  
!      't'
            Register from r0 to r11 (all 16-bit registers)
  
!      'p'
            Register from r12 to r15 (all 32-bit registers)
  
!      'I'
            Signed constant that fits in 4 bits
  
!      'J'
            Signed constant that fits in 5 bits
  
!      'K'
            Signed constant that fits in 6 bits
  
!      'L'
            Unsigned constant that fits in 4 bits
  
!      'M'
            Signed constant that fits in 32 bits
  
!      'N'
            Check for 64 bits wide constants for add/sub instructions
  
!      'G'
            Floating point constant that is legal for store immediate
  
! _Epiphany--'config/epiphany/constraints.md'_
!      'U16'
            An unsigned 16-bit constant.
  
!      'K'
            An unsigned 5-bit constant.
  
!      'L'
            A signed 11-bit constant.
  
!      'Cm1'
!           A signed 11-bit constant added to -1.  Can only match when the
!           '-m1reg-REG' option is active.
  
!      'Cl1'
            Left-shift of -1, i.e., a bit mask with a block of leading
            ones, the rest being a block of trailing zeroes.  Can only
!           match when the '-m1reg-REG' option is active.
  
!      'Cr1'
            Right-shift of -1, i.e., a bit mask with a trailing block of
            ones, the rest being zeroes.  Or to put it another way, one
            less than a power of two.  Can only match when the
!           '-m1reg-REG' option is active.
  
!      'Cal'
!           Constant for arithmetic/logical operations.  This is like 'i',
!           except that for position independent code, no symbols /
            expressions needing relocations are allowed.
  
!      'Csy'
            Symbolic constant for call/jump instruction.
  
!      'Rcs'
            The register class usable in short insns.  This is a register
            class constraint, and can thus drive register allocation.
!           This constraint won't match unless '-mprefer-short-insn-regs'
            is in effect.
  
!      'Rsc'
            The the register class of registers that can be used to hold a
            sibcall call address.  I.e., a caller-saved register.
  
!      'Rct'
            Core control register class.
  
!      'Rgs'
            The register group usable in short insns.  This constraint
            does not use a register class, so that it only passively
            matches suitable registers, and doesn't drive register
            allocation.
  
!      'Rra'
!           Matches the return address if it can be replaced with the link
!           register.
  
!      'Rcc'
            Matches the integer condition code register.
  
!      'Sra'
            Matches the return address if it is in a stack slot.
  
!      'Cfm'
            Matches control register values to switch fp mode, which are
!           encapsulated in 'UNSPEC_FP_MODE'.
  
! _FRV--'config/frv/frv.h'_
!      'a'
!           Register in the class 'ACC_REGS' ('acc0' to 'acc7').
  
!      'b'
!           Register in the class 'EVEN_ACC_REGS' ('acc0' to 'acc7').
  
!      'c'
!           Register in the class 'CC_REGS' ('fcc0' to 'fcc3' and 'icc0'
!           to 'icc3').
  
!      'd'
!           Register in the class 'GPR_REGS' ('gr0' to 'gr63').
  
!      'e'
!           Register in the class 'EVEN_REGS' ('gr0' to 'gr63').  Odd
!           registers are excluded not in the class but through the use of
!           a machine mode larger than 4 bytes.
  
!      'f'
!           Register in the class 'FPR_REGS' ('fr0' to 'fr63').
  
!      'h'
!           Register in the class 'FEVEN_REGS' ('fr0' to 'fr63').  Odd
!           registers are excluded not in the class but through the use of
!           a machine mode larger than 4 bytes.
  
!      'l'
!           Register in the class 'LR_REG' (the 'lr' register).
  
!      'q'
!           Register in the class 'QUAD_REGS' ('gr2' to 'gr63').  Register
!           numbers not divisible by 4 are excluded not in the class but
!           through the use of a machine mode larger than 8 bytes.
  
!      't'
!           Register in the class 'ICC_REGS' ('icc0' to 'icc3').
  
!      'u'
!           Register in the class 'FCC_REGS' ('fcc0' to 'fcc3').
  
!      'v'
!           Register in the class 'ICR_REGS' ('cc4' to 'cc7').
  
!      'w'
!           Register in the class 'FCR_REGS' ('cc0' to 'cc3').
  
!      'x'
!           Register in the class 'QUAD_FPR_REGS' ('fr0' to 'fr63').
            Register numbers not divisible by 4 are excluded not in the
            class but through the use of a machine mode larger than 8
            bytes.
  
!      'z'
!           Register in the class 'SPR_REGS' ('lcr' and 'lr').
  
!      'A'
!           Register in the class 'QUAD_ACC_REGS' ('acc0' to 'acc7').
  
!      'B'
!           Register in the class 'ACCG_REGS' ('accg0' to 'accg7').
  
!      'C'
!           Register in the class 'CR_REGS' ('cc0' to 'cc7').
  
!      'G'
            Floating point constant zero
  
!      'I'
            6-bit signed integer constant
  
!      'J'
            10-bit signed integer constant
  
!      'L'
            16-bit signed integer constant
  
!      'M'
            16-bit unsigned integer constant
  
!      'N'
            12-bit signed integer constant that is negative--i.e. in the
            range of -2048 to -1
  
!      'O'
            Constant zero
  
!      'P'
!           12-bit signed integer constant that is greater than zero--i.e.
!           in the range of 1 to 2047.
  
! _FT32--'config/ft32/constraints.md'_
!      'A'
            An absolute address
  
!      'B'
            An offset address
  
!      'W'
            A register indirect memory operand
  
!      'e'
            An offset address.
  
!      'f'
            An offset address.
  
!      'O'
            The constant zero or one
  
!      'I'
            A 16-bit signed constant (-32768 ... 32767)
  
!      'w'
            A bitfield mask suitable for bext or bins
  
!      'x'
            An inverted bitfield mask suitable for bext or bins
  
!      'L'
            A 16-bit unsigned constant, multiple of 4 (0 ... 65532)
  
!      'S'
            A 20-bit signed constant (-524288 ... 524287)
  
!      'b'
            A constant for a bitfield width (1 ... 16)
  
!      'KA'
            A 10-bit signed constant (-512 ... 511)
  
! _Hewlett-Packard PA-RISC--'config/pa/pa.h'_
!      'a'
            General register 1
  
!      'f'
            Floating point register
  
!      'q'
            Shift amount register
  
!      'x'
            Floating point register (deprecated)
  
!      'y'
            Upper floating point register (32-bit), floating point
            register (64-bit)
  
!      'Z'
            Any register
  
!      'I'
            Signed 11-bit integer constant
  
!      'J'
            Signed 14-bit integer constant
  
!      'K'
!           Integer constant that can be deposited with a 'zdepi'
            instruction
  
!      'L'
            Signed 5-bit integer constant
  
!      'M'
            Integer constant 0
  
!      'N'
!           Integer constant that can be loaded with a 'ldil' instruction
  
!      'O'
            Integer constant whose value plus one is a power of 2
  
!      'P'
!           Integer constant that can be used for 'and' operations in
!           'depi' and 'extru' instructions
  
!      'S'
            Integer constant 31
  
!      'U'
            Integer constant 63
  
!      'G'
            Floating-point constant 0.0
  
!      'A'
!           A 'lo_sum' data-linkage-table memory operand
  
!      'Q'
            A memory operand that can be used as the destination operand
            of an integer store instruction
  
!      'R'
            A scaled or unscaled indexed memory operand
  
!      'T'
            A memory operand for floating-point loads and stores
  
!      'W'
            A register indirect memory operand
  
! _Intel IA-64--'config/ia64/ia64.h'_
!      'a'
!           General register 'r0' to 'r3' for 'addl' instruction
  
!      'b'
            Branch register
  
!      'c'
!           Predicate register ('c' as in "conditional")
  
!      'd'
            Application register residing in M-unit
  
!      'e'
            Application register residing in I-unit
  
!      'f'
            Floating-point register
  
!      'm'
!           Memory operand.  If used together with '<' or '>', the operand
!           can have postincrement and postdecrement which require
!           printing with '%Pn' on IA-64.
  
!      'G'
            Floating-point constant 0.0 or 1.0
  
!      'I'
            14-bit signed integer constant
  
!      'J'
            22-bit signed integer constant
  
!      'K'
            8-bit signed integer constant for logical instructions
  
!      'L'
            8-bit adjusted signed integer constant for compare pseudo-ops
  
!      'M'
            6-bit unsigned integer constant for shift counts
  
!      'N'
            9-bit signed integer constant for load and store
            postincrements
  
!      'O'
            The constant zero
  
!      'P'
!           0 or -1 for 'dep' instruction
  
!      'Q'
            Non-volatile memory for floating-point loads and stores
  
!      'R'
!           Integer constant in the range 1 to 4 for 'shladd' instruction
  
!      'S'
            Memory operand except postincrement and postdecrement.  This
!           is now roughly the same as 'm' when not used together with '<'
!           or '>'.
  
! _M32C--'config/m32c/m32c.c'_
!      'Rsp'
!      'Rfb'
!      'Rsb'
!           '$sp', '$fb', '$sb'.
  
!      'Rcr'
            Any control register, when they're 16 bits wide (nothing if
            control registers are 24 bits wide)
  
!      'Rcl'
            Any control register, when they're 24 bits wide.
  
!      'R0w'
!      'R1w'
!      'R2w'
!      'R3w'
            $r0, $r1, $r2, $r3.
  
!      'R02'
            $r0 or $r2, or $r2r0 for 32 bit values.
  
!      'R13'
            $r1 or $r3, or $r3r1 for 32 bit values.
  
!      'Rdi'
            A register that can hold a 64 bit value.
  
!      'Rhl'
            $r0 or $r1 (registers with addressable high/low bytes)
  
!      'R23'
            $r2 or $r3
  
!      'Raa'
            Address registers
  
!      'Raw'
            Address registers when they're 16 bits wide.
  
!      'Ral'
            Address registers when they're 24 bits wide.
  
!      'Rqi'
            Registers that can hold QI values.
  
!      'Rad'
            Registers that can be used with displacements ($a0, $a1, $sb).
  
!      'Rsi'
            Registers that can hold 32 bit values.
  
!      'Rhi'
            Registers that can hold 16 bit values.
  
!      'Rhc'
            Registers chat can hold 16 bit values, including all control
            registers.
  
!      'Rra'
            $r0 through R1, plus $a0 and $a1.
  
!      'Rfl'
            The flags register.
  
!      'Rmm'
            The memory-based pseudo-registers $mem0 through $mem15.
  
!      'Rpi'
            Registers that can hold pointers (16 bit registers for r8c,
            m16c; 24 bit registers for m32cm, m32c).
  
!      'Rpa'
            Matches multiple registers in a PARALLEL to form a larger
            register.  Used to match function return values.
  
!      'Is3'
            -8 ... 7
  
!      'IS1'
            -128 ... 127
  
!      'IS2'
            -32768 ... 32767
  
!      'IU2'
            0 ... 65535
  
!      'In4'
            -8 ... -1 or 1 ... 8
  
!      'In5'
            -16 ... -1 or 1 ... 16
  
!      'In6'
            -32 ... -1 or 1 ... 32
  
!      'IM2'
            -65536 ... -1
  
!      'Ilb'
            An 8 bit value with exactly one bit set.
  
!      'Ilw'
            A 16 bit value with exactly one bit set.
  
!      'Sd'
            The common src/dest memory addressing modes.
  
!      'Sa'
            Memory addressed using $a0 or $a1.
  
!      'Si'
            Memory addressed with immediate addresses.
  
!      'Ss'
            Memory addressed using the stack pointer ($sp).
  
!      'Sf'
            Memory addressed using the frame base register ($fb).
  
!      'Ss'
            Memory addressed using the small base register ($sb).
  
!      'S1'
            $r1h
  
! _MeP--'config/mep/constraints.md'_
  
!      'a'
            The $sp register.
  
!      'b'
            The $tp register.
  
!      'c'
            Any control register.
  
!      'd'
            Either the $hi or the $lo register.
  
!      'em'
            Coprocessor registers that can be directly loaded ($c0-$c15).
  
!      'ex'
            Coprocessor registers that can be moved to each other.
  
!      'er'
            Coprocessor registers that can be moved to core registers.
  
!      'h'
            The $hi register.
  
!      'j'
            The $rpc register.
  
!      'l'
            The $lo register.
  
!      't'
            Registers which can be used in $tp-relative addressing.
  
!      'v'
            The $gp register.
  
!      'x'
            The coprocessor registers.
  
!      'y'
            The coprocessor control registers.
  
!      'z'
            The $0 register.
  
!      'A'
            User-defined register set A.
  
!      'B'
            User-defined register set B.
  
!      'C'
            User-defined register set C.
  
!      'D'
            User-defined register set D.
  
!      'I'
            Offsets for $gp-rel addressing.
  
!      'J'
            Constants that can be used directly with boolean insns.
  
!      'K'
            Constants that can be moved directly to registers.
  
!      'L'
            Small constants that can be added to registers.
  
!      'M'
            Long shift counts.
  
!      'N'
            Small constants that can be compared to registers.
  
!      'O'
            Constants that can be loaded into the top half of registers.
  
!      'S'
            Signed 8-bit immediates.
  
!      'T'
            Symbols encoded for $tp-rel or $gp-rel addressing.
  
!      'U'
            Non-constant addresses for loading/saving coprocessor
            registers.
  
!      'W'
            The top half of a symbol's value.
  
!      'Y'
            A register indirect address without offset.
  
!      'Z'
            Symbolic references to the control bus.
  
+ _MicroBlaze--'config/microblaze/constraints.md'_
+      'd'
+           A general register ('r0' to 'r31').
  
!      'z'
!           A status register ('rmsr', '$fcc1' to '$fcc7').
  
! _MIPS--'config/mips/constraints.md'_
!      'd'
!           An address register.  This is equivalent to 'r' unless
            generating MIPS16 code.
  
!      'f'
            A floating-point register (if available).
  
!      'h'
!           Formerly the 'hi' register.  This constraint is no longer
            supported.
  
!      'l'
!           The 'lo' register.  Use this register to store values that are
            no bigger than a word.
  
!      'x'
!           The concatenated 'hi' and 'lo' registers.  Use this register
            to store doubleword values.
  
!      'c'
            A register suitable for use in an indirect jump.  This will
!           always be '$25' for '-mabicalls'.
  
!      'v'
!           Register '$3'.  Do not use this constraint in new code; it is
            retained only for compatibility with glibc.
  
!      'y'
!           Equivalent to 'r'; retained for backwards compatibility.
  
!      'z'
            A floating-point condition code register.
  
!      'I'
            A signed 16-bit constant (for arithmetic instructions).
  
!      'J'
            Integer zero.
  
!      'K'
            An unsigned 16-bit constant (for logic instructions).
  
!      'L'
            A signed 32-bit constant in which the lower 16 bits are zero.
!           Such constants can be loaded using 'lui'.
  
!      'M'
!           A constant that cannot be loaded using 'lui', 'addiu' or
!           'ori'.
  
!      'N'
            A constant in the range -65535 to -1 (inclusive).
  
!      'O'
            A signed 15-bit constant.
  
!      'P'
            A constant in the range 1 to 65535 (inclusive).
  
!      'G'
            Floating-point zero.
  
!      'R'
            An address that can be used in a non-macro load or store.
  
!      'ZC'
            A memory operand whose address is formed by a base register
            and offset that is suitable for use in instructions with the
!           same addressing mode as 'll' and 'sc'.
  
!      'ZD'
!           An address suitable for a 'prefetch' instruction, or for any
!           other instruction with the same addressing mode as 'prefetch'.
  
! _Motorola 680x0--'config/m68k/constraints.md'_
!      'a'
            Address register
  
!      'd'
            Data register
  
!      'f'
            68881 floating-point register, if available
  
!      'I'
            Integer in the range 1 to 8
  
!      'J'
            16-bit signed number
  
!      'K'
            Signed number whose magnitude is greater than 0x80
  
!      'L'
            Integer in the range -8 to -1
  
!      'M'
            Signed number whose magnitude is greater than 0x100
  
!      'N'
            Range 24 to 31, rotatert:SI 8 to 1 expressed as rotate
  
!      'O'
            16 (for rotate using swap)
  
!      'P'
            Range 8 to 15, rotatert:HI 8 to 1 expressed as rotate
  
!      'R'
            Numbers that mov3q can handle
  
!      'G'
            Floating point constant that is not a 68881 constant
  
!      'S'
            Operands that satisfy 'm' when -mpcrel is in effect
  
!      'T'
            Operands that satisfy 's' when -mpcrel is not in effect
  
!      'Q'
            Address register indirect addressing mode
  
!      'U'
            Register offset addressing
  
!      'W'
            const_call_operand
  
!      'Cs'
            symbol_ref or const
  
!      'Ci'
            const_int
  
!      'C0'
            const_int 0
  
!      'Cj'
            Range of signed numbers that don't fit in 16 bits
  
!      'Cmvq'
            Integers valid for mvq
  
!      'Capsw'
            Integers valid for a moveq followed by a swap
  
!      'Cmvz'
            Integers valid for mvz
  
!      'Cmvs'
            Integers valid for mvs
  
!      'Ap'
            push_operand
  
!      'Ac'
            Non-register operands allowed in clr
  
! _Moxie--'config/moxie/constraints.md'_
!      'A'
            An absolute address
  
!      'B'
            An offset address
  
!      'W'
            A register indirect memory operand
  
!      'I'
            A constant in the range of 0 to 255.
  
!      'N'
            A constant in the range of 0 to -255.
  
+ _MSP430-'config/msp430/constraints.md'_
  
!      'R12'
            Register R12.
  
!      'R13'
            Register R13.
  
!      'K'
            Integer constant 1.
  
!      'L'
            Integer constant -1^20..1^19.
  
!      'M'
            Integer constant 1-4.
  
!      'Ya'
            Memory references which do not require an extended MOVX
            instruction.
  
!      'Yl'
            Memory reference, labels only.
  
!      'Ys'
            Memory reference, stack only.
  
! _NDS32--'config/nds32/constraints.md'_
!      'w'
            LOW register class $r0 to $r7 constraint for V3/V3M ISA.
!      'l'
            LOW register class $r0 to $r7.
!      'd'
            MIDDLE register class $r0 to $r11, $r16 to $r19.
!      'h'
            HIGH register class $r12 to $r14, $r20 to $r31.
!      't'
            Temporary assist register $ta (i.e. $r15).
!      'k'
            Stack register $sp.
!      'Iu03'
            Unsigned immediate 3-bit value.
!      'In03'
            Negative immediate 3-bit value in the range of -7-0.
!      'Iu04'
            Unsigned immediate 4-bit value.
!      'Is05'
            Signed immediate 5-bit value.
!      'Iu05'
            Unsigned immediate 5-bit value.
!      'In05'
            Negative immediate 5-bit value in the range of -31-0.
!      'Ip05'
            Unsigned immediate 5-bit value for movpi45 instruction with
            range 16-47.
!      'Iu06'
            Unsigned immediate 6-bit value constraint for addri36.sp
            instruction.
!      'Iu08'
            Unsigned immediate 8-bit value.
!      'Iu09'
            Unsigned immediate 9-bit value.
!      'Is10'
            Signed immediate 10-bit value.
!      'Is11'
            Signed immediate 11-bit value.
!      'Is15'
            Signed immediate 15-bit value.
!      'Iu15'
            Unsigned immediate 15-bit value.
!      'Ic15'
!           A constant which is not in the range of imm15u but ok for bclr
!           instruction.
!      'Ie15'
!           A constant which is not in the range of imm15u but ok for bset
!           instruction.
!      'It15'
!           A constant which is not in the range of imm15u but ok for btgl
!           instruction.
!      'Ii15'
            A constant whose compliment value is in the range of imm15u
            and ok for bitci instruction.
!      'Is16'
            Signed immediate 16-bit value.
!      'Is17'
            Signed immediate 17-bit value.
!      'Is19'
            Signed immediate 19-bit value.
!      'Is20'
            Signed immediate 20-bit value.
!      'Ihig'
            The immediate value that can be simply set high 20-bit.
!      'Izeb'
            The immediate value 0xff.
!      'Izeh'
            The immediate value 0xffff.
!      'Ixls'
            The immediate value 0x01.
!      'Ix11'
            The immediate value 0x7ff.
!      'Ibms'
            The immediate value with power of 2.
!      'Ifex'
            The immediate value with power of 2 minus 1.
!      'U33'
            Memory constraint for 333 format.
!      'U45'
            Memory constraint for 45 format.
!      'U37'
            Memory constraint for 37 format.
  
! _Nios II family--'config/nios2/constraints.md'_
  
!      'I'
            Integer that is valid as an immediate operand in an
!           instruction taking a signed 16-bit number.  Range -32768 to
            32767.
  
!      'J'
            Integer that is valid as an immediate operand in an
!           instruction taking an unsigned 16-bit number.  Range 0 to
            65535.
  
!      'K'
            Integer that is valid as an immediate operand in an
            instruction taking only the upper 16-bits of a 32-bit number.
            Range 32-bit numbers with the lower 16-bits being 0.
  
!      'L'
            Integer that is valid as an immediate operand for a shift
!           instruction.  Range 0 to 31.
  
!      'M'
            Integer that is valid as an immediate operand for only the
!           value 0.  Can be used in conjunction with the format modifier
!           'z' to use 'r0' instead of '0' in the assembly output.
  
!      'N'
            Integer that is valid as an immediate operand for a custom
!           instruction opcode.  Range 0 to 255.
  
!      'P'
            An immediate operand for R2 andchi/andci instructions.
  
!      'S'
            Matches immediates which are addresses in the small data
!           section and therefore can be added to 'gp' as a 16-bit
            immediate to re-create their 32-bit value.
  
!      'U'
            Matches constants suitable as an operand for the rdprs and
            cache instructions.
  
!      'v'
            A memory operand suitable for Nios II R2 load/store exclusive
            instructions.
  
!      'w'
            A memory operand suitable for load/store IO and cache
            instructions.
  
+ _PDP-11--'config/pdp11/constraints.md'_
+      'a'
+           Floating point registers AC0 through AC3.  These can be loaded
+           from/to memory with a single instruction.
  
!      'd'
            Odd numbered general registers (R1, R3, R5).  These are used
            for 16-bit multiply operations.
  
!      'f'
            Any of the floating point registers (AC0 through AC5).
  
!      'G'
            Floating point constant 0.
  
!      'I'
            An integer constant that fits in 16 bits.
  
!      'J'
            An integer constant whose low order 16 bits are zero.
  
!      'K'
            An integer constant that does not meet the constraints for
!           codes 'I' or 'J'.
  
!      'L'
            The integer constant 1.
  
!      'M'
            The integer constant -1.
  
!      'N'
            The integer constant 0.
  
!      'O'
            Integer constants -4 through -1 and 1 through 4; shifts by
!           these amounts are handled as multiple single-bit shifts rather
!           than a single variable-length shift.
  
!      'Q'
            A memory reference which requires an additional word (address
            or offset) after the opcode.
  
!      'R'
            A memory reference that is encoded within the opcode.
  
! _PowerPC and IBM RS6000--'config/rs6000/constraints.md'_
!      'b'
            Address base register
  
!      'd'
            Floating point register (containing 64-bit value)
  
!      'f'
            Floating point register (containing 32-bit value)
  
!      'v'
            Altivec vector register
  
!      'wa'
            Any VSX register if the -mvsx option was used or NO_REGS.
  
!           When using any of the register constraints ('wa', 'wd', 'wf',
!           'wg', 'wh', 'wi', 'wj', 'wk', 'wl', 'wm', 'wo', 'wp', 'wq',
!           'ws', 'wt', 'wu', 'wv', 'ww', or 'wy') that take VSX
!           registers, you must use '%x<n>' in the template so that the
            correct register is used.  Otherwise the register number
            output in the assembly file will be incorrect if an Altivec
            register is an operand of a VSX instruction that expects VSX
*************** _PowerPC and IBM RS6000--`config/rs6000/
*** 33371,33570 ****
            is not correct.
  
            If an instruction only takes Altivec registers, you do not
!           want to use `%x<n>'.
  
                 asm ("xsaddqp %0,%1,%2" : "=v" (v1) : "v" (v2), "v" (v3));
  
!           is correct because the `xsaddqp' instruction only takes
            Altivec registers, while:
  
                 asm ("xsaddqp %x0,%x1,%x2" : "=v" (v1) : "v" (v2), "v" (v3));
  
            is incorrect.
  
!     `wb'
!           Altivec register if `-mcpu=power9' is used or NO_REGS.
  
!     `wd'
            VSX vector register to hold vector double data or NO_REGS.
  
!     `we'
!           VSX register if the `-mcpu=power9' and `-m64' options were
            used or NO_REGS.
  
!     `wf'
            VSX vector register to hold vector float data or NO_REGS.
  
!     `wg'
!           If `-mmfpgpr' was used, a floating point register or NO_REGS.
  
!     `wh'
            Floating point register if direct moves are available, or
            NO_REGS.
  
!     `wi'
            FP or VSX register to hold 64-bit integers for VSX insns or
            NO_REGS.
  
!     `wj'
!           FP or VSX register to hold 64-bit integers for direct moves
!           or NO_REGS.
  
!     `wk'
            FP or VSX register to hold 64-bit doubles for direct moves or
            NO_REGS.
  
!     `wl'
            Floating point register if the LFIWAX instruction is enabled
            or NO_REGS.
  
!     `wm'
            VSX register if direct move instructions are enabled, or
            NO_REGS.
  
!     `wn'
            No register (NO_REGS).
  
!     `wo'
            VSX register to use for ISA 3.0 vector instructions, or
            NO_REGS.
  
!     `wp'
!           VSX register to use for IEEE 128-bit floating point TFmode,
!           or NO_REGS.
  
!     `wq'
            VSX register to use for IEEE 128-bit floating point, or
            NO_REGS.
  
!     `wr'
!           General purpose register if 64-bit instructions are enabled
!           or NO_REGS.
  
!     `ws'
            VSX vector register to hold scalar double values or NO_REGS.
  
!     `wt'
            VSX vector register to hold 128 bit integer or NO_REGS.
  
!     `wu'
!           Altivec register to use for float/32-bit int loads/stores  or
            NO_REGS.
  
!     `wv'
!           Altivec register to use for double loads/stores  or NO_REGS.
  
!     `ww'
!           FP or VSX register to perform float operations under `-mvsx'
            or NO_REGS.
  
!     `wx'
            Floating point register if the STFIWX instruction is enabled
            or NO_REGS.
  
!     `wy'
            FP or VSX register to perform ISA 2.07 float ops or NO_REGS.
  
!     `wz'
            Floating point register if the LFIWZX instruction is enabled
            or NO_REGS.
  
!     `wA'
            Address base register if 64-bit instructions are enabled or
            NO_REGS.
  
!     `wD'
            Int constant that is the element number of the 64-bit scalar
            in a vector.
  
!     `wE'
            Vector constant that can be loaded with the XXSPLTIB
            instruction.
  
!     `wF'
            Memory operand suitable for power9 fusion load/stores.
  
!     `wG'
            Memory operand suitable for TOC fusion memory references.
  
!     `wL'
            Int constant that is the element number that the MFVSRLD
            instruction.  targets.
  
!     `wM'
            Match vector constant with all 1's if the XXLORC instruction
            is available.
  
!     `wO'
            A memory operand suitable for the ISA 3.0 vector d-form
            instructions.
  
!     `wQ'
!           A memory address that will work with the `lq' and `stq'
            instructions.
  
!     `wS'
            Vector constant that can be loaded with XXSPLTIB & sign
            extension.
  
!     `h'
!           `MQ', `CTR', or `LINK' register
  
!     `c'
!           `CTR' register
  
!     `l'
!           `LINK' register
  
!     `x'
!           `CR' register (condition register) number 0
  
!     `y'
!           `CR' register (condition register)
  
!     `z'
!           `XER[CA]' carry bit (part of the XER register)
  
!     `I'
            Signed 16-bit constant
  
!     `J'
!           Unsigned 16-bit constant shifted left 16 bits (use `L'
!           instead for `SImode' constants)
  
!     `K'
            Unsigned 16-bit constant
  
!     `L'
            Signed 16-bit constant shifted left 16 bits
  
!     `M'
            Constant larger than 31
  
!     `N'
            Exact power of 2
  
!     `O'
            Zero
  
!     `P'
            Constant whose negation is a signed 16-bit constant
  
!     `G'
            Floating point constant that can be loaded into a register
            with one instruction per word
  
!     `H'
            Integer/Floating point constant that can be loaded into a
            register using three instructions
  
!     `m'
!           Memory operand.  Normally, `m' does not allow addresses that
!           update the base register.  If `<' or `>' constraint is also
            used, they are allowed and therefore on PowerPC targets in
!           that case it is only safe to use `m<>' in an `asm' statement
!           if that `asm' statement accesses the operand exactly once.
!           The `asm' statement must also use `%U<OPNO>' as a placeholder
            for the "update" flag in the corresponding load or store
            instruction.  For example:
  
--- 33114,33313 ----
            is not correct.
  
            If an instruction only takes Altivec registers, you do not
!           want to use '%x<n>'.
  
                 asm ("xsaddqp %0,%1,%2" : "=v" (v1) : "v" (v2), "v" (v3));
  
!           is correct because the 'xsaddqp' instruction only takes
            Altivec registers, while:
  
                 asm ("xsaddqp %x0,%x1,%x2" : "=v" (v1) : "v" (v2), "v" (v3));
  
            is incorrect.
  
!      'wb'
!           Altivec register if '-mcpu=power9' is used or NO_REGS.
  
!      'wd'
            VSX vector register to hold vector double data or NO_REGS.
  
!      'we'
!           VSX register if the '-mcpu=power9' and '-m64' options were
            used or NO_REGS.
  
!      'wf'
            VSX vector register to hold vector float data or NO_REGS.
  
!      'wg'
!           If '-mmfpgpr' was used, a floating point register or NO_REGS.
  
!      'wh'
            Floating point register if direct moves are available, or
            NO_REGS.
  
!      'wi'
            FP or VSX register to hold 64-bit integers for VSX insns or
            NO_REGS.
  
!      'wj'
!           FP or VSX register to hold 64-bit integers for direct moves or
!           NO_REGS.
  
!      'wk'
            FP or VSX register to hold 64-bit doubles for direct moves or
            NO_REGS.
  
!      'wl'
            Floating point register if the LFIWAX instruction is enabled
            or NO_REGS.
  
!      'wm'
            VSX register if direct move instructions are enabled, or
            NO_REGS.
  
!      'wn'
            No register (NO_REGS).
  
!      'wo'
            VSX register to use for ISA 3.0 vector instructions, or
            NO_REGS.
  
!      'wp'
!           VSX register to use for IEEE 128-bit floating point TFmode, or
!           NO_REGS.
  
!      'wq'
            VSX register to use for IEEE 128-bit floating point, or
            NO_REGS.
  
!      'wr'
!           General purpose register if 64-bit instructions are enabled or
!           NO_REGS.
  
!      'ws'
            VSX vector register to hold scalar double values or NO_REGS.
  
!      'wt'
            VSX vector register to hold 128 bit integer or NO_REGS.
  
!      'wu'
!           Altivec register to use for float/32-bit int loads/stores or
            NO_REGS.
  
!      'wv'
!           Altivec register to use for double loads/stores or NO_REGS.
  
!      'ww'
!           FP or VSX register to perform float operations under '-mvsx'
            or NO_REGS.
  
!      'wx'
            Floating point register if the STFIWX instruction is enabled
            or NO_REGS.
  
!      'wy'
            FP or VSX register to perform ISA 2.07 float ops or NO_REGS.
  
!      'wz'
            Floating point register if the LFIWZX instruction is enabled
            or NO_REGS.
  
!      'wA'
            Address base register if 64-bit instructions are enabled or
            NO_REGS.
  
!      'wD'
            Int constant that is the element number of the 64-bit scalar
            in a vector.
  
!      'wE'
            Vector constant that can be loaded with the XXSPLTIB
            instruction.
  
!      'wF'
            Memory operand suitable for power9 fusion load/stores.
  
!      'wG'
            Memory operand suitable for TOC fusion memory references.
  
!      'wL'
            Int constant that is the element number that the MFVSRLD
            instruction.  targets.
  
!      'wM'
            Match vector constant with all 1's if the XXLORC instruction
            is available.
  
!      'wO'
            A memory operand suitable for the ISA 3.0 vector d-form
            instructions.
  
!      'wQ'
!           A memory address that will work with the 'lq' and 'stq'
            instructions.
  
!      'wS'
            Vector constant that can be loaded with XXSPLTIB & sign
            extension.
  
!      'h'
!           'MQ', 'CTR', or 'LINK' register
  
!      'c'
!           'CTR' register
  
!      'l'
!           'LINK' register
  
!      'x'
!           'CR' register (condition register) number 0
  
!      'y'
!           'CR' register (condition register)
  
!      'z'
!           'XER[CA]' carry bit (part of the XER register)
  
!      'I'
            Signed 16-bit constant
  
!      'J'
!           Unsigned 16-bit constant shifted left 16 bits (use 'L' instead
!           for 'SImode' constants)
  
!      'K'
            Unsigned 16-bit constant
  
!      'L'
            Signed 16-bit constant shifted left 16 bits
  
!      'M'
            Constant larger than 31
  
!      'N'
            Exact power of 2
  
!      'O'
            Zero
  
!      'P'
            Constant whose negation is a signed 16-bit constant
  
!      'G'
            Floating point constant that can be loaded into a register
            with one instruction per word
  
!      'H'
            Integer/Floating point constant that can be loaded into a
            register using three instructions
  
!      'm'
!           Memory operand.  Normally, 'm' does not allow addresses that
!           update the base register.  If '<' or '>' constraint is also
            used, they are allowed and therefore on PowerPC targets in
!           that case it is only safe to use 'm<>' in an 'asm' statement
!           if that 'asm' statement accesses the operand exactly once.
!           The 'asm' statement must also use '%U<OPNO>' as a placeholder
            for the "update" flag in the corresponding load or store
            instruction.  For example:
  
*************** _PowerPC and IBM RS6000--`config/rs6000/
*** 33576,34328 ****
  
            is not.
  
!     `es'
!           A "stable" memory operand; that is, one which does not
!           include any automodification of the base register.  This used
!           to be useful when `m' allowed automodification of the base
!           register, but as those are now only allowed when `<' or `>'
!           is used, `es' is basically the same as `m' without `<' and
!           `>'.
  
!     `Q'
            Memory operand that is an offset from a register (it is
!           usually better to use `m' or `es' in `asm' statements)
  
!     `Z'
            Memory operand that is an indexed or indirect from a register
!           (it is usually better to use `m' or `es' in `asm' statements)
  
!     `R'
            AIX TOC entry
  
!     `a'
!           Address operand that is an indexed or indirect from a
!           register (`p' is preferable for `asm' statements)
  
!     `U'
            System V Release 4 small data area reference
  
!     `W'
            Vector constant that does not require memory
  
!     `j'
            Vector constant that is all zeros.
  
  
! _RL78--`config/rl78/constraints.md'_
! 
!     `Int3'
            An integer constant in the range 1 ... 7.
! 
!     `Int8'
            An integer constant in the range 0 ... 255.
! 
!     `J'
            An integer constant in the range -255 ... 0
! 
!     `K'
            The integer constant 1.
! 
!     `L'
            The integer constant -1.
! 
!     `M'
            The integer constant 0.
! 
!     `N'
            The integer constant 2.
! 
!     `O'
            The integer constant -2.
! 
!     `P'
            An integer constant in the range 1 ... 15.
! 
!     `Qbi'
            The built-in compare types-eq, ne, gtu, ltu, geu, and leu.
! 
!     `Qsc'
            The synthetic compare types-gt, lt, ge, and le.
! 
!     `Wab'
            A memory reference with an absolute address.
! 
!     `Wbc'
!           A memory reference using `BC' as a base register, with an
            optional offset.
! 
!     `Wca'
!           A memory reference using `AX', `BC', `DE', or `HL' for the
            address, for calls.
! 
!     `Wcv'
            A memory reference using any 16-bit register pair for the
            address, for calls.
! 
!     `Wd2'
!           A memory reference using `DE' as a base register, with an
            optional offset.
! 
!     `Wde'
!           A memory reference using `DE' as a base register, without any
            offset.
! 
!     `Wfr'
            Any memory reference to an address in the far address space.
! 
!     `Wh1'
!           A memory reference using `HL' as a base register, with an
            optional one-byte offset.
! 
!     `Whb'
!           A memory reference using `HL' as a base register, with `B' or
!           `C' as the index register.
! 
!     `Whl'
!           A memory reference using `HL' as a base register, without any
            offset.
! 
!     `Ws1'
!           A memory reference using `SP' as a base register, with an
            optional one-byte offset.
! 
!     `Y'
            Any memory reference to an address in the near address space.
! 
!     `A'
!           The `AX' register.
! 
!     `B'
!           The `BC' register.
! 
!     `D'
!           The `DE' register.
! 
!     `R'
!           `A' through `L' registers.
! 
!     `S'
!           The `SP' register.
! 
!     `T'
!           The `HL' register.
! 
!     `Z08W'
!           The 16-bit `R8' register.
! 
!     `Z10W'
!           The 16-bit `R10' register.
! 
!     `Zint'
!           The registers reserved for interrupts (`R24' to `R31').
! 
!     `a'
!           The `A' register.
! 
!     `b'
!           The `B' register.
! 
!     `c'
!           The `C' register.
! 
!     `d'
!           The `D' register.
! 
!     `e'
!           The `E' register.
! 
!     `h'
!           The `H' register.
! 
!     `l'
!           The `L' register.
! 
!     `v'
            The virtual registers.
  
!     `w'
!           The `PSW' register.
! 
!     `x'
!           The `X' register.
! 
! 
! _RX--`config/rx/constraints.md'_
! 
!     `Q'
!           An address which does not involve register indirect
!           addressing or pre/post increment/decrement addressing.
  
!     `Symbol'
            A symbol reference.
  
!     `Int08'
            A constant in the range -256 to 255, inclusive.
  
!     `Sint08'
            A constant in the range -128 to 127, inclusive.
  
!     `Sint16'
            A constant in the range -32768 to 32767, inclusive.
  
!     `Sint24'
            A constant in the range -8388608 to 8388607, inclusive.
  
!     `Uint04'
            A constant in the range 0 to 15, inclusive.
  
! 
! _S/390 and zSeries--`config/s390/s390.h'_
! 
!     `a'
            Address register (general purpose register except r0)
  
!     `c'
            Condition code register
  
!     `d'
            Data register (arbitrary general purpose register)
  
!     `f'
            Floating-point register
  
!     `I'
            Unsigned 8-bit constant (0-255)
  
!     `J'
            Unsigned 12-bit constant (0-4095)
  
!     `K'
            Signed 16-bit constant (-32768-32767)
  
!     `L'
            Value appropriate as displacement.
!          `(0..4095)'
                 for short displacement
! 
!          `(-524288..524287)'
                 for long displacement
  
!     `M'
            Constant integer with a value of 0x7fffffff.
  
!     `N'
            Multiple letter constraint followed by 4 parameter letters.
!          `0..9:'
                 number of the part counting from most to least
                 significant
! 
!          `H,Q:'
                 mode of the part
! 
!          `D,S,H:'
                 mode of the containing operand
! 
!          `0,F:'
                 value of the other parts (F--all bits set)
!           The constraint matches if the specified part of a constant
!           has a value different from its other parts.
  
!     `Q'
            Memory reference without index register and with short
            displacement.
  
!     `R'
            Memory reference with index register and short displacement.
  
!     `S'
            Memory reference without index register but with long
            displacement.
  
!     `T'
            Memory reference with index register and long displacement.
  
!     `U'
            Pointer with short displacement.
  
!     `W'
            Pointer with long displacement.
  
!     `Y'
            Shift count operand.
  
  
! _SPARC--`config/sparc/sparc.h'_
! 
!     `f'
!           Floating-point register on the SPARC-V8 architecture and
!           lower floating-point register on the SPARC-V9 architecture.
! 
!     `e'
!           Floating-point register.  It is equivalent to `f' on the
            SPARC-V8 architecture and contains both lower and upper
            floating-point registers on the SPARC-V9 architecture.
  
!     `c'
            Floating-point condition code register.
  
!     `d'
            Lower floating-point register.  It is only valid on the
            SPARC-V9 architecture when the Visual Instruction Set is
            available.
  
!     `b'
            Floating-point register.  It is only valid on the SPARC-V9
            architecture when the Visual Instruction Set is available.
  
!     `h'
            64-bit global or out register for the SPARC-V8+ architecture.
  
!     `C'
            The constant all-ones, for floating-point.
  
!     `A'
            Signed 5-bit constant
  
!     `D'
            A vector constant
  
!     `I'
            Signed 13-bit constant
  
!     `J'
            Zero
  
!     `K'
            32-bit constant with the low 12 bits clear (a constant that
!           can be loaded with the `sethi' instruction)
  
!     `L'
!           A constant in the range supported by `movcc' instructions
            (11-bit signed immediate)
  
!     `M'
!           A constant in the range supported by `movrcc' instructions
            (10-bit signed immediate)
  
!     `N'
!           Same as `K', except that it verifies that bits that are not
!           in the lower 32-bit range are all zero.  Must be used instead
!           of `K' for modes wider than `SImode'
  
!     `O'
            The constant 4096
  
!     `G'
            Floating-point zero
  
!     `H'
            Signed 13-bit constant, sign-extended to 32 or 64 bits
  
!     `P'
            The constant -1
  
!     `Q'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single sethi
            instruction
  
!     `R'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single mov instruction
  
!     `S'
            Floating-point constant whose integral representation can be
!           moved into an integer register using a high/lo_sum
!           instruction sequence
  
!     `T'
            Memory address aligned to an 8-byte boundary
  
!     `U'
            Even register
  
!     `W'
!           Memory address for `e' constraint registers
  
!     `w'
            Memory address with only a base register
  
!     `Y'
            Vector zero
  
! 
! _SPU--`config/spu/spu.h'_
! 
!     `a'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 64 bit value.
  
!     `c'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 64 bit value.
  
!     `d'
!           An immediate for the `iohl' instruction.  const_int is
!           treated as a 64 bit value.
  
!     `f'
!           An immediate which can be loaded with `fsmbi'.
  
!     `A'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 32 bit value.
  
!     `B'
            An immediate for most arithmetic instructions.  const_int is
            treated as a 32 bit value.
  
!     `C'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 32 bit value.
  
!     `D'
!           An immediate for the `iohl' instruction.  const_int is
!           treated as a 32 bit value.
  
!     `I'
            A constant in the range [-64, 63] for shift/rotate
            instructions.
  
!     `J'
            An unsigned 7-bit constant for conversion/nop/channel
            instructions.
  
!     `K'
            A signed 10-bit constant for most arithmetic instructions.
  
!     `M'
!           A signed 16 bit immediate for `stop'.
  
!     `N'
!           An unsigned 16-bit constant for `iohl' and `fsmbi'.
  
!     `O'
            An unsigned 7-bit constant whose 3 least significant bits are
            0.
  
!     `P'
            An unsigned 3-bit constant for 16-byte rotates and shifts
  
!     `R'
            Call operand, reg, for indirect calls
  
!     `S'
            Call operand, symbol, for relative calls.
  
!     `T'
            Call operand, const_int, for absolute calls.
  
!     `U'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is sign extended to 128 bit.
  
!     `W'
            An immediate for shift and rotate instructions.  const_int is
            treated as a 32 bit value.
  
!     `Y'
            An immediate for and/xor/or instructions.  const_int is sign
            extended as a 128 bit.
  
!     `Z'
!           An immediate for the `iohl' instruction.  const_int is sign
            extended to 128 bit.
  
! 
! _TI C6X family--`config/c6x/constraints.md'_
! 
!     `a'
            Register file A (A0-A31).
  
!     `b'
            Register file B (B0-B31).
  
!     `A'
            Predicate registers in register file A (A0-A2 on C64X and
            higher, A1 and A2 otherwise).
  
!     `B'
            Predicate registers in register file B (B0-B2).
  
!     `C'
            A call-used register in register file B (B0-B9, B16-B31).
  
!     `Da'
            Register file A, excluding predicate registers (A3-A31, plus
            A0 if not C64X or higher).
  
!     `Db'
            Register file B, excluding predicate registers (B3-B31).
  
!     `Iu4'
            Integer constant in the range 0 ... 15.
  
!     `Iu5'
            Integer constant in the range 0 ... 31.
  
!     `In5'
            Integer constant in the range -31 ... 0.
  
!     `Is5'
            Integer constant in the range -16 ... 15.
  
!     `I5x'
            Integer constant that can be the operand of an ADDA or a SUBA
            insn.
  
!     `IuB'
            Integer constant in the range 0 ... 65535.
  
!     `IsB'
            Integer constant in the range -32768 ... 32767.
  
!     `IsC'
!           Integer constant in the range -2^20 ... 2^20 - 1.
  
!     `Jc'
            Integer constant that is a valid mask for the clr instruction.
  
!     `Js'
            Integer constant that is a valid mask for the set instruction.
  
!     `Q'
            Memory location with A base register.
  
!     `R'
            Memory location with B base register.
  
!     `Z'
            Register B14 (aka DP).
  
! 
! _TILE-Gx--`config/tilegx/constraints.md'_
! 
!     `R00'
!     `R01'
!     `R02'
!     `R03'
!     `R04'
!     `R05'
!     `R06'
!     `R07'
!     `R08'
!     `R09'
!     `R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!     `I'
            Signed 8-bit integer constant.
  
!     `J'
            Signed 16-bit integer constant.
  
!     `K'
            Unsigned 16-bit integer constant.
  
!     `L'
!           Integer constant that fits in one signed byte when
!           incremented by one (-129 ... 126).
  
!     `m'
!           Memory operand.  If used together with `<' or `>', the
!           operand can have postincrement which requires printing with
!           `%In' and `%in' on TILE-Gx.  For example:
  
                 asm ("st_add %I0,%1,%i0" : "=m<>" (*mem) : "r" (val));
  
!     `M'
            A bit mask suitable for the BFINS instruction.
  
!     `N'
            Integer constant that is a byte tiled out eight times.
  
!     `O'
            The integer zero constant.
  
!     `P'
            Integer constant that is a sign-extended byte tiled out as
            four shorts.
  
!     `Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!     `S'
            Integer constant that has all 1 bits consecutive and starting
            at bit 0.
  
!     `T'
            A 16-bit fragment of a got, tls, or pc-relative reference.
  
!     `U'
!           Memory operand except postincrement.  This is roughly the
!           same as `m' when not used together with `<' or `>'.
  
!     `W'
            An 8-element vector constant with identical elements.
  
!     `Y'
            A 4-element vector constant with identical elements.
  
!     `Z0'
            The integer constant 0xffffffff.
  
!     `Z1'
            The integer constant 0xffffffff00000000.
  
! 
! _TILEPro--`config/tilepro/constraints.md'_
! 
!     `R00'
!     `R01'
!     `R02'
!     `R03'
!     `R04'
!     `R05'
!     `R06'
!     `R07'
!     `R08'
!     `R09'
!     `R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!     `I'
            Signed 8-bit integer constant.
  
!     `J'
            Signed 16-bit integer constant.
  
!     `K'
            Nonzero integer constant with low 16 bits zero.
  
!     `L'
!           Integer constant that fits in one signed byte when
!           incremented by one (-129 ... 126).
  
!     `m'
!           Memory operand.  If used together with `<' or `>', the
!           operand can have postincrement which requires printing with
!           `%In' and `%in' on TILEPro.  For example:
  
                 asm ("swadd %I0,%1,%i0" : "=m<>" (mem) : "r" (val));
  
!     `M'
            A bit mask suitable for the MM instruction.
  
!     `N'
            Integer constant that is a byte tiled out four times.
  
!     `O'
            The integer zero constant.
  
!     `P'
!           Integer constant that is a sign-extended byte tiled out as
!           two shorts.
  
!     `Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!     `T'
            A symbolic operand, or a 16-bit fragment of a got, tls, or
            pc-relative reference.
  
!     `U'
!           Memory operand except postincrement.  This is roughly the
!           same as `m' when not used together with `<' or `>'.
  
!     `W'
            A 4-element vector constant with identical elements.
  
!     `Y'
            A 2-element vector constant with identical elements.
  
  
! _Visium--`config/visium/constraints.md'_
! 
!     `b'
!           EAM register `mdb'
! 
!     `c'
!           EAM register `mdc'
  
!     `f'
            Floating point register
  
!     `l'
!           General register, but not `r29', `r30' and `r31'
  
!     `t'
!           Register `r1'
  
!     `u'
!           Register `r2'
  
!     `v'
!           Register `r3'
  
!     `G'
            Floating-point constant 0.0
  
!     `J'
!           Integer constant in the range 0 .. 65535 (16-bit immediate)
  
!     `K'
!           Integer constant in the range 1 .. 31 (5-bit immediate)
  
!     `L'
!           Integer constant in the range -65535 .. -1 (16-bit negative
            immediate)
  
!     `M'
            Integer constant -1
  
!     `O'
            Integer constant 0
  
!     `P'
            Integer constant 32
  
! _x86 family--`config/i386/constraints.md'_
! 
!     `R'
            Legacy register--the eight integer registers available on all
!           i386 processors (`a', `b', `c', `d', `si', `di', `bp', `sp').
  
!     `q'
!           Any register accessible as `Rl'.  In 32-bit mode, `a', `b',
!           `c', and `d'; in 64-bit mode, any integer register.
  
!     `Q'
!           Any register accessible as `Rh': `a', `b', `c', and `d'.
  
!     `a'
!           The `a' register.
  
!     `b'
!           The `b' register.
  
!     `c'
!           The `c' register.
  
!     `d'
!           The `d' register.
  
!     `S'
!           The `si' register.
  
!     `D'
!           The `di' register.
  
!     `A'
!           The `a' and `d' registers.  This class is used for
!           instructions that return double word results in the `ax:dx'
!           register pair.  Single word values will be allocated either
!           in `ax' or `dx'.  For example on i386 the following
!           implements `rdtsc':
  
                 unsigned long long rdtsc (void)
                 {
--- 33319,34007 ----
  
            is not.
  
!      'es'
!           A "stable" memory operand; that is, one which does not include
!           any automodification of the base register.  This used to be
!           useful when 'm' allowed automodification of the base register,
!           but as those are now only allowed when '<' or '>' is used,
!           'es' is basically the same as 'm' without '<' and '>'.
  
!      'Q'
            Memory operand that is an offset from a register (it is
!           usually better to use 'm' or 'es' in 'asm' statements)
  
!      'Z'
            Memory operand that is an indexed or indirect from a register
!           (it is usually better to use 'm' or 'es' in 'asm' statements)
  
!      'R'
            AIX TOC entry
  
!      'a'
!           Address operand that is an indexed or indirect from a register
!           ('p' is preferable for 'asm' statements)
  
!      'U'
            System V Release 4 small data area reference
  
!      'W'
            Vector constant that does not require memory
  
!      'j'
            Vector constant that is all zeros.
  
+ _RL78--'config/rl78/constraints.md'_
  
!      'Int3'
            An integer constant in the range 1 ... 7.
!      'Int8'
            An integer constant in the range 0 ... 255.
!      'J'
            An integer constant in the range -255 ... 0
!      'K'
            The integer constant 1.
!      'L'
            The integer constant -1.
!      'M'
            The integer constant 0.
!      'N'
            The integer constant 2.
!      'O'
            The integer constant -2.
!      'P'
            An integer constant in the range 1 ... 15.
!      'Qbi'
            The built-in compare types-eq, ne, gtu, ltu, geu, and leu.
!      'Qsc'
            The synthetic compare types-gt, lt, ge, and le.
!      'Wab'
            A memory reference with an absolute address.
!      'Wbc'
!           A memory reference using 'BC' as a base register, with an
            optional offset.
!      'Wca'
!           A memory reference using 'AX', 'BC', 'DE', or 'HL' for the
            address, for calls.
!      'Wcv'
            A memory reference using any 16-bit register pair for the
            address, for calls.
!      'Wd2'
!           A memory reference using 'DE' as a base register, with an
            optional offset.
!      'Wde'
!           A memory reference using 'DE' as a base register, without any
            offset.
!      'Wfr'
            Any memory reference to an address in the far address space.
!      'Wh1'
!           A memory reference using 'HL' as a base register, with an
            optional one-byte offset.
!      'Whb'
!           A memory reference using 'HL' as a base register, with 'B' or
!           'C' as the index register.
!      'Whl'
!           A memory reference using 'HL' as a base register, without any
            offset.
!      'Ws1'
!           A memory reference using 'SP' as a base register, with an
            optional one-byte offset.
!      'Y'
            Any memory reference to an address in the near address space.
!      'A'
!           The 'AX' register.
!      'B'
!           The 'BC' register.
!      'D'
!           The 'DE' register.
!      'R'
!           'A' through 'L' registers.
!      'S'
!           The 'SP' register.
!      'T'
!           The 'HL' register.
!      'Z08W'
!           The 16-bit 'R8' register.
!      'Z10W'
!           The 16-bit 'R10' register.
!      'Zint'
!           The registers reserved for interrupts ('R24' to 'R31').
!      'a'
!           The 'A' register.
!      'b'
!           The 'B' register.
!      'c'
!           The 'C' register.
!      'd'
!           The 'D' register.
!      'e'
!           The 'E' register.
!      'h'
!           The 'H' register.
!      'l'
!           The 'L' register.
!      'v'
            The virtual registers.
+      'w'
+           The 'PSW' register.
+      'x'
+           The 'X' register.
  
! _RX--'config/rx/constraints.md'_
!      'Q'
!           An address which does not involve register indirect addressing
!           or pre/post increment/decrement addressing.
  
!      'Symbol'
            A symbol reference.
  
!      'Int08'
            A constant in the range -256 to 255, inclusive.
  
!      'Sint08'
            A constant in the range -128 to 127, inclusive.
  
!      'Sint16'
            A constant in the range -32768 to 32767, inclusive.
  
!      'Sint24'
            A constant in the range -8388608 to 8388607, inclusive.
  
!      'Uint04'
            A constant in the range 0 to 15, inclusive.
  
! _S/390 and zSeries--'config/s390/s390.h'_
!      'a'
            Address register (general purpose register except r0)
  
!      'c'
            Condition code register
  
!      'd'
            Data register (arbitrary general purpose register)
  
!      'f'
            Floating-point register
  
!      'I'
            Unsigned 8-bit constant (0-255)
  
!      'J'
            Unsigned 12-bit constant (0-4095)
  
!      'K'
            Signed 16-bit constant (-32768-32767)
  
!      'L'
            Value appropriate as displacement.
!           '(0..4095)'
                 for short displacement
!           '(-524288..524287)'
                 for long displacement
  
!      'M'
            Constant integer with a value of 0x7fffffff.
  
!      'N'
            Multiple letter constraint followed by 4 parameter letters.
!           '0..9:'
                 number of the part counting from most to least
                 significant
!           'H,Q:'
                 mode of the part
!           'D,S,H:'
                 mode of the containing operand
!           '0,F:'
                 value of the other parts (F--all bits set)
!           The constraint matches if the specified part of a constant has
!           a value different from its other parts.
  
!      'Q'
            Memory reference without index register and with short
            displacement.
  
!      'R'
            Memory reference with index register and short displacement.
  
!      'S'
            Memory reference without index register but with long
            displacement.
  
!      'T'
            Memory reference with index register and long displacement.
  
!      'U'
            Pointer with short displacement.
  
!      'W'
            Pointer with long displacement.
  
!      'Y'
            Shift count operand.
  
+ _SPARC--'config/sparc/sparc.h'_
+      'f'
+           Floating-point register on the SPARC-V8 architecture and lower
+           floating-point register on the SPARC-V9 architecture.
  
!      'e'
!           Floating-point register.  It is equivalent to 'f' on the
            SPARC-V8 architecture and contains both lower and upper
            floating-point registers on the SPARC-V9 architecture.
  
!      'c'
            Floating-point condition code register.
  
!      'd'
            Lower floating-point register.  It is only valid on the
            SPARC-V9 architecture when the Visual Instruction Set is
            available.
  
!      'b'
            Floating-point register.  It is only valid on the SPARC-V9
            architecture when the Visual Instruction Set is available.
  
!      'h'
            64-bit global or out register for the SPARC-V8+ architecture.
  
!      'C'
            The constant all-ones, for floating-point.
  
!      'A'
            Signed 5-bit constant
  
!      'D'
            A vector constant
  
!      'I'
            Signed 13-bit constant
  
!      'J'
            Zero
  
!      'K'
            32-bit constant with the low 12 bits clear (a constant that
!           can be loaded with the 'sethi' instruction)
  
!      'L'
!           A constant in the range supported by 'movcc' instructions
            (11-bit signed immediate)
  
!      'M'
!           A constant in the range supported by 'movrcc' instructions
            (10-bit signed immediate)
  
!      'N'
!           Same as 'K', except that it verifies that bits that are not in
!           the lower 32-bit range are all zero.  Must be used instead of
!           'K' for modes wider than 'SImode'
  
!      'O'
            The constant 4096
  
!      'G'
            Floating-point zero
  
!      'H'
            Signed 13-bit constant, sign-extended to 32 or 64 bits
  
!      'P'
            The constant -1
  
!      'Q'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single sethi
            instruction
  
!      'R'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single mov instruction
  
!      'S'
            Floating-point constant whose integral representation can be
!           moved into an integer register using a high/lo_sum instruction
!           sequence
  
!      'T'
            Memory address aligned to an 8-byte boundary
  
!      'U'
            Even register
  
!      'W'
!           Memory address for 'e' constraint registers
  
!      'w'
            Memory address with only a base register
  
!      'Y'
            Vector zero
  
! _SPU--'config/spu/spu.h'_
!      'a'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 64 bit value.
  
!      'c'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 64 bit value.
  
!      'd'
!           An immediate for the 'iohl' instruction.  const_int is treated
!           as a 64 bit value.
  
!      'f'
!           An immediate which can be loaded with 'fsmbi'.
  
!      'A'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 32 bit value.
  
!      'B'
            An immediate for most arithmetic instructions.  const_int is
            treated as a 32 bit value.
  
!      'C'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 32 bit value.
  
!      'D'
!           An immediate for the 'iohl' instruction.  const_int is treated
!           as a 32 bit value.
  
!      'I'
            A constant in the range [-64, 63] for shift/rotate
            instructions.
  
!      'J'
            An unsigned 7-bit constant for conversion/nop/channel
            instructions.
  
!      'K'
            A signed 10-bit constant for most arithmetic instructions.
  
!      'M'
!           A signed 16 bit immediate for 'stop'.
  
!      'N'
!           An unsigned 16-bit constant for 'iohl' and 'fsmbi'.
  
!      'O'
            An unsigned 7-bit constant whose 3 least significant bits are
            0.
  
!      'P'
            An unsigned 3-bit constant for 16-byte rotates and shifts
  
!      'R'
            Call operand, reg, for indirect calls
  
!      'S'
            Call operand, symbol, for relative calls.
  
!      'T'
            Call operand, const_int, for absolute calls.
  
!      'U'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is sign extended to 128 bit.
  
!      'W'
            An immediate for shift and rotate instructions.  const_int is
            treated as a 32 bit value.
  
!      'Y'
            An immediate for and/xor/or instructions.  const_int is sign
            extended as a 128 bit.
  
!      'Z'
!           An immediate for the 'iohl' instruction.  const_int is sign
            extended to 128 bit.
  
! _TI C6X family--'config/c6x/constraints.md'_
!      'a'
            Register file A (A0-A31).
  
!      'b'
            Register file B (B0-B31).
  
!      'A'
            Predicate registers in register file A (A0-A2 on C64X and
            higher, A1 and A2 otherwise).
  
!      'B'
            Predicate registers in register file B (B0-B2).
  
!      'C'
            A call-used register in register file B (B0-B9, B16-B31).
  
!      'Da'
            Register file A, excluding predicate registers (A3-A31, plus
            A0 if not C64X or higher).
  
!      'Db'
            Register file B, excluding predicate registers (B3-B31).
  
!      'Iu4'
            Integer constant in the range 0 ... 15.
  
!      'Iu5'
            Integer constant in the range 0 ... 31.
  
!      'In5'
            Integer constant in the range -31 ... 0.
  
!      'Is5'
            Integer constant in the range -16 ... 15.
  
!      'I5x'
            Integer constant that can be the operand of an ADDA or a SUBA
            insn.
  
!      'IuB'
            Integer constant in the range 0 ... 65535.
  
!      'IsB'
            Integer constant in the range -32768 ... 32767.
  
!      'IsC'
!           Integer constant in the range -2^{20} ... 2^{20} - 1.
  
!      'Jc'
            Integer constant that is a valid mask for the clr instruction.
  
!      'Js'
            Integer constant that is a valid mask for the set instruction.
  
!      'Q'
            Memory location with A base register.
  
!      'R'
            Memory location with B base register.
  
!      'Z'
            Register B14 (aka DP).
  
! _TILE-Gx--'config/tilegx/constraints.md'_
!      'R00'
!      'R01'
!      'R02'
!      'R03'
!      'R04'
!      'R05'
!      'R06'
!      'R07'
!      'R08'
!      'R09'
!      'R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!      'I'
            Signed 8-bit integer constant.
  
!      'J'
            Signed 16-bit integer constant.
  
!      'K'
            Unsigned 16-bit integer constant.
  
!      'L'
!           Integer constant that fits in one signed byte when incremented
!           by one (-129 ... 126).
  
!      'm'
!           Memory operand.  If used together with '<' or '>', the operand
!           can have postincrement which requires printing with '%In' and
!           '%in' on TILE-Gx.  For example:
  
                 asm ("st_add %I0,%1,%i0" : "=m<>" (*mem) : "r" (val));
  
!      'M'
            A bit mask suitable for the BFINS instruction.
  
!      'N'
            Integer constant that is a byte tiled out eight times.
  
!      'O'
            The integer zero constant.
  
!      'P'
            Integer constant that is a sign-extended byte tiled out as
            four shorts.
  
!      'Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!      'S'
            Integer constant that has all 1 bits consecutive and starting
            at bit 0.
  
!      'T'
            A 16-bit fragment of a got, tls, or pc-relative reference.
  
!      'U'
!           Memory operand except postincrement.  This is roughly the same
!           as 'm' when not used together with '<' or '>'.
  
!      'W'
            An 8-element vector constant with identical elements.
  
!      'Y'
            A 4-element vector constant with identical elements.
  
!      'Z0'
            The integer constant 0xffffffff.
  
!      'Z1'
            The integer constant 0xffffffff00000000.
  
! _TILEPro--'config/tilepro/constraints.md'_
!      'R00'
!      'R01'
!      'R02'
!      'R03'
!      'R04'
!      'R05'
!      'R06'
!      'R07'
!      'R08'
!      'R09'
!      'R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!      'I'
            Signed 8-bit integer constant.
  
!      'J'
            Signed 16-bit integer constant.
  
!      'K'
            Nonzero integer constant with low 16 bits zero.
  
!      'L'
!           Integer constant that fits in one signed byte when incremented
!           by one (-129 ... 126).
  
!      'm'
!           Memory operand.  If used together with '<' or '>', the operand
!           can have postincrement which requires printing with '%In' and
!           '%in' on TILEPro.  For example:
  
                 asm ("swadd %I0,%1,%i0" : "=m<>" (mem) : "r" (val));
  
!      'M'
            A bit mask suitable for the MM instruction.
  
!      'N'
            Integer constant that is a byte tiled out four times.
  
!      'O'
            The integer zero constant.
  
!      'P'
!           Integer constant that is a sign-extended byte tiled out as two
!           shorts.
  
!      'Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!      'T'
            A symbolic operand, or a 16-bit fragment of a got, tls, or
            pc-relative reference.
  
!      'U'
!           Memory operand except postincrement.  This is roughly the same
!           as 'm' when not used together with '<' or '>'.
  
!      'W'
            A 4-element vector constant with identical elements.
  
!      'Y'
            A 2-element vector constant with identical elements.
  
+ _Visium--'config/visium/constraints.md'_
+      'b'
+           EAM register 'mdb'
  
!      'c'
!           EAM register 'mdc'
  
!      'f'
            Floating point register
  
!      'l'
!           General register, but not 'r29', 'r30' and 'r31'
  
!      't'
!           Register 'r1'
  
!      'u'
!           Register 'r2'
  
!      'v'
!           Register 'r3'
  
!      'G'
            Floating-point constant 0.0
  
!      'J'
!           Integer constant in the range 0 ..  65535 (16-bit immediate)
  
!      'K'
!           Integer constant in the range 1 ..  31 (5-bit immediate)
  
!      'L'
!           Integer constant in the range -65535 ..  -1 (16-bit negative
            immediate)
  
!      'M'
            Integer constant -1
  
!      'O'
            Integer constant 0
  
!      'P'
            Integer constant 32
  
! _x86 family--'config/i386/constraints.md'_
!      'R'
            Legacy register--the eight integer registers available on all
!           i386 processors ('a', 'b', 'c', 'd', 'si', 'di', 'bp', 'sp').
  
!      'q'
!           Any register accessible as 'Rl'.  In 32-bit mode, 'a', 'b',
!           'c', and 'd'; in 64-bit mode, any integer register.
  
!      'Q'
!           Any register accessible as 'Rh': 'a', 'b', 'c', and 'd'.
  
!      'a'
!           The 'a' register.
  
!      'b'
!           The 'b' register.
  
!      'c'
!           The 'c' register.
  
!      'd'
!           The 'd' register.
  
!      'S'
!           The 'si' register.
  
!      'D'
!           The 'di' register.
  
!      'A'
!           The 'a' and 'd' registers.  This class is used for
!           instructions that return double word results in the 'ax:dx'
!           register pair.  Single word values will be allocated either in
!           'ax' or 'dx'.  For example on i386 the following implements
!           'rdtsc':
  
                 unsigned long long rdtsc (void)
                 {
*************** _x86 family--`config/i386/constraints.md
*** 34332,34338 ****
                 }
  
            This is not correct on x86-64 as it would allocate tick in
!           either `ax' or `dx'.  You have to use the following variant
            instead:
  
                 unsigned long long rdtsc (void)
--- 34011,34017 ----
                 }
  
            This is not correct on x86-64 as it would allocate tick in
!           either 'ax' or 'dx'.  You have to use the following variant
            instead:
  
                 unsigned long long rdtsc (void)
*************** _x86 family--`config/i386/constraints.md
*** 34342,34496 ****
                   return ((unsigned long long)tickh << 32)|tickl;
                 }
  
!     `f'
            Any 80387 floating-point (stack) register.
  
!     `t'
!           Top of 80387 floating-point stack (`%st(0)').
  
!     `u'
!           Second from top of 80387 floating-point stack (`%st(1)').
  
!     `y'
            Any MMX register.
  
!     `x'
            Any SSE register.
  
!     `Yz'
!           First SSE register (`%xmm0').
  
!     `I'
            Integer constant in the range 0 ... 31, for 32-bit shifts.
  
!     `J'
            Integer constant in the range 0 ... 63, for 64-bit shifts.
  
!     `K'
            Signed 8-bit integer constant.
  
!     `L'
!           `0xFF' or `0xFFFF', for andsi as a zero-extending move.
  
!     `M'
!           0, 1, 2, or 3 (shifts for the `lea' instruction).
  
!     `N'
!           Unsigned 8-bit integer constant (for `in' and `out'
            instructions).
  
!     `G'
            Standard 80387 floating point constant.
  
!     `C'
            SSE constant zero operand.
  
!     `e'
            32-bit signed integer constant, or a symbolic reference known
            to fit that range (for immediate operands in sign-extending
            x86-64 instructions).
  
!     `Z'
            32-bit unsigned integer constant, or a symbolic reference
            known to fit that range (for immediate operands in
            zero-extending x86-64 instructions).
  
! 
! _Xstormy16--`config/stormy16/stormy16.h'_
! 
!     `a'
            Register r0.
  
!     `b'
            Register r1.
  
!     `c'
            Register r2.
  
!     `d'
            Register r8.
  
!     `e'
            Registers r0 through r7.
  
!     `t'
            Registers r0 and r1.
  
!     `y'
            The carry register.
  
!     `z'
            Registers r8 and r9.
  
!     `I'
            A constant between 0 and 3 inclusive.
  
!     `J'
            A constant that has exactly one bit set.
  
!     `K'
            A constant that has exactly one bit clear.
  
!     `L'
            A constant between 0 and 255 inclusive.
  
!     `M'
            A constant between -255 and 0 inclusive.
  
!     `N'
            A constant between -3 and 0 inclusive.
  
!     `O'
            A constant between 1 and 4 inclusive.
  
!     `P'
            A constant between -4 and -1 inclusive.
  
!     `Q'
            A memory reference that is a stack push.
  
!     `R'
            A memory reference that is a stack pop.
  
!     `S'
            A memory reference that refers to a constant address of known
            value.
  
!     `T'
            The register indicated by Rx (not implemented yet).
  
!     `U'
            A constant that is not between 2 and 15 inclusive.
  
!     `Z'
            The constant 0.
  
! 
! _Xtensa--`config/xtensa/constraints.md'_
! 
!     `a'
            General-purpose 32-bit register
  
!     `b'
            One-bit boolean register
  
!     `A'
            MAC16 40-bit accumulator register
  
!     `I'
            Signed 12-bit integer constant, for use in MOVI instructions
  
!     `J'
            Signed 8-bit integer constant, for use in ADDI instructions
  
!     `K'
            Integer constant valid for BccI instructions
  
!     `L'
            Unsigned constant valid for BccUI instructions
  
- 
- 
  
  File: gcc.info,  Node: Asm Labels,  Next: Explicit Register Variables,  Prev: Constraints,  Up: Using Assembly Language with C
  
--- 34021,34169 ----
                   return ((unsigned long long)tickh << 32)|tickl;
                 }
  
!      'f'
            Any 80387 floating-point (stack) register.
  
!      't'
!           Top of 80387 floating-point stack ('%st(0)').
  
!      'u'
!           Second from top of 80387 floating-point stack ('%st(1)').
  
!      'y'
            Any MMX register.
  
!      'x'
            Any SSE register.
  
!      'Yz'
!           First SSE register ('%xmm0').
  
!      'I'
            Integer constant in the range 0 ... 31, for 32-bit shifts.
  
!      'J'
            Integer constant in the range 0 ... 63, for 64-bit shifts.
  
!      'K'
            Signed 8-bit integer constant.
  
!      'L'
!           '0xFF' or '0xFFFF', for andsi as a zero-extending move.
  
!      'M'
!           0, 1, 2, or 3 (shifts for the 'lea' instruction).
  
!      'N'
!           Unsigned 8-bit integer constant (for 'in' and 'out'
            instructions).
  
!      'G'
            Standard 80387 floating point constant.
  
!      'C'
            SSE constant zero operand.
  
!      'e'
            32-bit signed integer constant, or a symbolic reference known
            to fit that range (for immediate operands in sign-extending
            x86-64 instructions).
  
!      'Z'
            32-bit unsigned integer constant, or a symbolic reference
            known to fit that range (for immediate operands in
            zero-extending x86-64 instructions).
  
! _Xstormy16--'config/stormy16/stormy16.h'_
!      'a'
            Register r0.
  
!      'b'
            Register r1.
  
!      'c'
            Register r2.
  
!      'd'
            Register r8.
  
!      'e'
            Registers r0 through r7.
  
!      't'
            Registers r0 and r1.
  
!      'y'
            The carry register.
  
!      'z'
            Registers r8 and r9.
  
!      'I'
            A constant between 0 and 3 inclusive.
  
!      'J'
            A constant that has exactly one bit set.
  
!      'K'
            A constant that has exactly one bit clear.
  
!      'L'
            A constant between 0 and 255 inclusive.
  
!      'M'
            A constant between -255 and 0 inclusive.
  
!      'N'
            A constant between -3 and 0 inclusive.
  
!      'O'
            A constant between 1 and 4 inclusive.
  
!      'P'
            A constant between -4 and -1 inclusive.
  
!      'Q'
            A memory reference that is a stack push.
  
!      'R'
            A memory reference that is a stack pop.
  
!      'S'
            A memory reference that refers to a constant address of known
            value.
  
!      'T'
            The register indicated by Rx (not implemented yet).
  
!      'U'
            A constant that is not between 2 and 15 inclusive.
  
!      'Z'
            The constant 0.
  
! _Xtensa--'config/xtensa/constraints.md'_
!      'a'
            General-purpose 32-bit register
  
!      'b'
            One-bit boolean register
  
!      'A'
            MAC16 40-bit accumulator register
  
!      'I'
            Signed 12-bit integer constant, for use in MOVI instructions
  
!      'J'
            Signed 8-bit integer constant, for use in ADDI instructions
  
!      'K'
            Integer constant valid for BccI instructions
  
!      'L'
            Unsigned constant valid for BccUI instructions
  
  
  File: gcc.info,  Node: Asm Labels,  Next: Explicit Register Variables,  Prev: Constraints,  Up: Using Assembly Language with C
  
*************** File: gcc.info,  Node: Asm Labels,  Next
*** 34498,34504 ****
  -----------------------------------------------
  
  You can specify the name to be used in the assembler code for a C
! function or variable by writing the `asm' (or `__asm__') keyword after
  the declarator.  It is up to you to make sure that the assembler names
  you choose do not conflict with any other assembler symbols, or
  reference registers.
--- 34171,34177 ----
  -----------------------------------------------
  
  You can specify the name to be used in the assembler code for a C
! function or variable by writing the 'asm' (or '__asm__') keyword after
  the declarator.  It is up to you to make sure that the assembler names
  you choose do not conflict with any other assembler symbols, or
  reference registers.
*************** This sample shows how to specify the ass
*** 34510,34521 ****
  
       int foo asm ("myfoo") = 2;
  
! This specifies that the name to be used for the variable `foo' in the
! assembler code should be `myfoo' rather than the usual `_foo'.
  
   On systems where an underscore is normally prepended to the name of a C
! variable, this feature allows you to define names for the linker that
! do not start with an underscore.
  
   GCC does not support using this feature with a non-static local
  variable since such variables do not have assembler names.  If you are
--- 34183,34194 ----
  
       int foo asm ("myfoo") = 2;
  
! This specifies that the name to be used for the variable 'foo' in the
! assembler code should be 'myfoo' rather than the usual '_foo'.
  
   On systems where an underscore is normally prepended to the name of a C
! variable, this feature allows you to define names for the linker that do
! not start with an underscore.
  
   GCC does not support using this feature with a non-static local
  variable since such variables do not have assembler names.  If you are
*************** Assembler names for functions:
*** 34526,34532 ****
  ..............................
  
  To specify the assembler name for functions, write a declaration for the
! function before its definition and put `asm' there, like this:
  
       int func (int x, int y) asm ("MYFUNC");
  
--- 34199,34205 ----
  ..............................
  
  To specify the assembler name for functions, write a declaration for the
! function before its definition and put 'asm' there, like this:
  
       int func (int x, int y) asm ("MYFUNC");
  
*************** function before its definition and put `
*** 34534,34541 ****
       {
          /* ... */
  
! This specifies that the name to be used for the function `func' in the
! assembler code should be `MYFUNC'.
  
  
  File: gcc.info,  Node: Explicit Register Variables,  Next: Size of an asm,  Prev: Asm Labels,  Up: Using Assembly Language with C
--- 34207,34214 ----
       {
          /* ... */
  
! This specifies that the name to be used for the function 'func' in the
! assembler code should be 'MYFUNC'.
  
  
  File: gcc.info,  Node: Explicit Register Variables,  Next: Size of an asm,  Prev: Asm Labels,  Up: Using Assembly Language with C
*************** specified register like this:
*** 34569,34607 ****
  
       register int *foo asm ("r12");
  
! Here `r12' is the name of the register that should be used. Note that
  this is the same syntax used for defining local register variables, but
! for a global variable the declaration appears outside a function. The
! `register' keyword is required, and cannot be combined with `static'.
  The register name must be a valid register name for the target platform.
  
   Registers are a scarce resource on most systems and allowing the
  compiler to manage their usage usually results in the best code.
  However, under special circumstances it can make sense to reserve some
  globally.  For example this may be useful in programs such as
! programming language interpreters that have a couple of global
! variables that are accessed very often.
  
   After defining a global register variable, for the current compilation
  unit:
  
     * The register is reserved entirely for this use, and will not be
       allocated for any other purpose.
- 
     * The register is not saved and restored by any functions.
- 
     * Stores into this register are never deleted even if they appear to
       be dead, but references may be deleted, moved or simplified.
  
   Note that these points _only_ apply to code that is compiled with the
! definition. The behavior of code that is merely linked in (for example
  code from libraries) is not affected.
  
   If you want to recompile source files that do not actually use your
  global register variable so they do not use the specified register for
  any other purpose, you need not actually add the global register
! declaration to their source code. It suffices to specify the compiler
! option `-ffixed-REG' (*note Code Gen Options::) to reserve the register.
  
  Declaring the variable
  ......................
--- 34242,34278 ----
  
       register int *foo asm ("r12");
  
! Here 'r12' is the name of the register that should be used.  Note that
  this is the same syntax used for defining local register variables, but
! for a global variable the declaration appears outside a function.  The
! 'register' keyword is required, and cannot be combined with 'static'.
  The register name must be a valid register name for the target platform.
  
   Registers are a scarce resource on most systems and allowing the
  compiler to manage their usage usually results in the best code.
  However, under special circumstances it can make sense to reserve some
  globally.  For example this may be useful in programs such as
! programming language interpreters that have a couple of global variables
! that are accessed very often.
  
   After defining a global register variable, for the current compilation
  unit:
  
     * The register is reserved entirely for this use, and will not be
       allocated for any other purpose.
     * The register is not saved and restored by any functions.
     * Stores into this register are never deleted even if they appear to
       be dead, but references may be deleted, moved or simplified.
  
   Note that these points _only_ apply to code that is compiled with the
! definition.  The behavior of code that is merely linked in (for example
  code from libraries) is not affected.
  
   If you want to recompile source files that do not actually use your
  global register variable so they do not use the specified register for
  any other purpose, you need not actually add the global register
! declaration to their source code.  It suffices to specify the compiler
! option '-ffixed-REG' (*note Code Gen Options::) to reserve the register.
  
  Declaring the variable
  ......................
*************** Global register variables can not have i
*** 34610,34616 ****
  executable file has no means to supply initial contents for a register.
  
   When selecting a register, choose one that is normally saved and
! restored by function calls on your machine. This ensures that code
  which is unaware of this reservation (such as library routines) will
  restore it before returning.
  
--- 34281,34287 ----
  executable file has no means to supply initial contents for a register.
  
   When selecting a register, choose one that is normally saved and
! restored by function calls on your machine.  This ensures that code
  which is unaware of this reservation (such as library routines) will
  restore it before returning.
  
*************** that is not affected magically by the fu
*** 34620,34646 ****
  Using the variable
  ..................
  
! When calling routines that are not aware of the reservation, be
! cautious if those routines call back into code which uses them. As an
! example, if you call the system library version of `qsort', it may
! clobber your registers during execution, but (if you have selected
! appropriate registers) it will restore them before returning. However
! it will _not_ restore them before calling `qsort''s comparison
! function. As a result, global values will not reliably be available to
! the comparison function unless the `qsort' function itself is rebuilt.
  
   Similarly, it is not safe to access the global register variables from
! signal handlers or from more than one thread of control. Unless you
  recompile them specially for the task at hand, the system library
  routines may temporarily use the register for other things.
  
!  On most machines, `longjmp' restores to each global register variable
! the value it had at the time of the `setjmp'. On some machines,
! however, `longjmp' does not change the value of global register
! variables. To be portable, the function that called `setjmp' should
  make other arrangements to save the values of the global register
! variables, and to restore them in a `longjmp'. This way, the same thing
! happens regardless of what `longjmp' does.
  
   Eventually there may be a way of asking the compiler to choose a
  register automatically, but first we need to figure out how it should
--- 34291,34317 ----
  Using the variable
  ..................
  
! When calling routines that are not aware of the reservation, be cautious
! if those routines call back into code which uses them.  As an example,
! if you call the system library version of 'qsort', it may clobber your
! registers during execution, but (if you have selected appropriate
! registers) it will restore them before returning.  However it will _not_
! restore them before calling 'qsort''s comparison function.  As a result,
! global values will not reliably be available to the comparison function
! unless the 'qsort' function itself is rebuilt.
  
   Similarly, it is not safe to access the global register variables from
! signal handlers or from more than one thread of control.  Unless you
  recompile them specially for the task at hand, the system library
  routines may temporarily use the register for other things.
  
!  On most machines, 'longjmp' restores to each global register variable
! the value it had at the time of the 'setjmp'.  On some machines,
! however, 'longjmp' does not change the value of global register
! variables.  To be portable, the function that called 'setjmp' should
  make other arrangements to save the values of the global register
! variables, and to restore them in a 'longjmp'.  This way, the same thing
! happens regardless of what 'longjmp' does.
  
   Eventually there may be a way of asking the compiler to choose a
  register automatically, but first we need to figure out how it should
*************** specified register like this:
*** 34658,34667 ****
  
       register int *foo asm ("r12");
  
! Here `r12' is the name of the register that should be used.  Note that
! this is the same syntax used for defining global register variables,
! but for a local variable the declaration appears within a function.  The
! `register' keyword is required, and cannot be combined with `static'.
  The register name must be a valid register name for the target platform.
  
   As with global register variables, it is recommended that you choose a
--- 34329,34338 ----
  
       register int *foo asm ("r12");
  
! Here 'r12' is the name of the register that should be used.  Note that
! this is the same syntax used for defining global register variables, but
! for a local variable the declaration appears within a function.  The
! 'register' keyword is required, and cannot be combined with 'static'.
  The register name must be a valid register name for the target platform.
  
   As with global register variables, it is recommended that you choose a
*************** register that is normally saved and rest
*** 34669,34681 ****
  machine, so that calls to library routines will not clobber it.
  
   The only supported use for this feature is to specify registers for
! input and output operands when calling Extended `asm' (*note Extended
  Asm::).  This may be necessary if the constraints for a particular
! machine don't provide sufficient control to select the desired
! register.  To force an operand into a register, create a local variable
! and specify the register name after the variable's declaration.  Then
! use the local variable for the `asm' operand and specify any constraint
! letter that matches the register:
  
       register int *p1 asm ("r0") = ...;
       register int *p2 asm ("r1") = ...;
--- 34340,34352 ----
  machine, so that calls to library routines will not clobber it.
  
   The only supported use for this feature is to specify registers for
! input and output operands when calling Extended 'asm' (*note Extended
  Asm::).  This may be necessary if the constraints for a particular
! machine don't provide sufficient control to select the desired register.
! To force an operand into a register, create a local variable and specify
! the register name after the variable's declaration.  Then use the local
! variable for the 'asm' operand and specify any constraint letter that
! matches the register:
  
       register int *p1 asm ("r0") = ...;
       register int *p2 asm ("r1") = ...;
*************** letter that matches the register:
*** 34683,34691 ****
       asm ("sysint" : "=r" (result) : "0" (p1), "r" (p2));
  
   _Warning:_ In the above example, be aware that a register (for example
! `r0') can be call-clobbered by subsequent code, including function
! calls and library calls for arithmetic operators on other variables (for
! example the initialization of `p2').  In this case, use temporary
  variables for expressions between the register assignments:
  
       int t1 = ...;
--- 34354,34362 ----
       asm ("sysint" : "=r" (result) : "0" (p1), "r" (p2));
  
   _Warning:_ In the above example, be aware that a register (for example
! 'r0') can be call-clobbered by subsequent code, including function calls
! and library calls for arithmetic operators on other variables (for
! example the initialization of 'p2').  In this case, use temporary
  variables for expressions between the register assignments:
  
       int t1 = ...;
*************** variables for expressions between the re
*** 34695,34712 ****
       asm ("sysint" : "=r" (result) : "0" (p1), "r" (p2));
  
   Defining a register variable does not reserve the register.  Other than
! when invoking the Extended `asm', the contents of the specified
! register are not guaranteed.  For this reason, the following uses are
! explicitly _not_ supported.  If they appear to work, it is only
! happenstance, and may stop working as intended due to (seemingly)
! unrelated changes in surrounding code, or even minor changes in the
! optimization of a future version of gcc:
! 
!    * Passing parameters to or from Basic `asm'
! 
!    * Passing parameters to or from Extended `asm' without using input
!      or output operands.
  
     * Passing parameters to or from routines written in assembler (or
       other languages) using non-standard calling conventions.
  
--- 34366,34381 ----
       asm ("sysint" : "=r" (result) : "0" (p1), "r" (p2));
  
   Defining a register variable does not reserve the register.  Other than
! when invoking the Extended 'asm', the contents of the specified register
! are not guaranteed.  For this reason, the following uses are explicitly
! _not_ supported.  If they appear to work, it is only happenstance, and
! may stop working as intended due to (seemingly) unrelated changes in
! surrounding code, or even minor changes in the optimization of a future
! version of gcc:
  
+    * Passing parameters to or from Basic 'asm'
+    * Passing parameters to or from Extended 'asm' without using input or
+      output operands.
     * Passing parameters to or from routines written in assembler (or
       other languages) using non-standard calling conventions.
  
*************** specifics for MIPS targets: (gccint)MIPS
*** 34725,34743 ****
  
  File: gcc.info,  Node: Size of an asm,  Prev: Explicit Register Variables,  Up: Using Assembly Language with C
  
! 6.44.6 Size of an `asm'
  -----------------------
  
! Some targets require that GCC track the size of each instruction used
! in order to generate correct code.  Because the final length of the
! code produced by an `asm' statement is only known by the assembler, GCC
! must make an estimate as to how big it will be.  It does this by
! counting the number of instructions in the pattern of the `asm' and
! multiplying that by the length of the longest instruction supported by
! that processor.  (When working out the number of instructions, it
! assumes that any occurrence of a newline or of whatever statement
! separator character is supported by the assembler - typically `;' --
! indicates the end of an instruction.)
  
   Normally, GCC's estimate is adequate to ensure that correct code is
  generated, but it is possible to confuse the compiler if you use pseudo
--- 34394,34412 ----
  
  File: gcc.info,  Node: Size of an asm,  Prev: Explicit Register Variables,  Up: Using Assembly Language with C
  
! 6.44.6 Size of an 'asm'
  -----------------------
  
! Some targets require that GCC track the size of each instruction used in
! order to generate correct code.  Because the final length of the code
! produced by an 'asm' statement is only known by the assembler, GCC must
! make an estimate as to how big it will be.  It does this by counting the
! number of instructions in the pattern of the 'asm' and multiplying that
! by the length of the longest instruction supported by that processor.
! (When working out the number of instructions, it assumes that any
! occurrence of a newline or of whatever statement separator character is
! supported by the assembler - typically ';' -- indicates the end of an
! instruction.)
  
   Normally, GCC's estimate is adequate to ensure that correct code is
  generated, but it is possible to confuse the compiler if you use pseudo
*************** File: gcc.info,  Node: Alternate Keyword
*** 34753,34772 ****
  6.45 Alternate Keywords
  =======================
  
! `-ansi' and the various `-std' options disable certain keywords.  This
  causes trouble when you want to use GNU C extensions, or a
  general-purpose header file that should be usable by all programs,
! including ISO C programs.  The keywords `asm', `typeof' and `inline'
! are not available in programs compiled with `-ansi' or `-std' (although
! `inline' can be used in a program compiled with `-std=c99' or
! `-std=c11').  The ISO C99 keyword `restrict' is only available when
! `-std=gnu99' (which will eventually be the default) or `-std=c99' (or
! the equivalent `-std=iso9899:1999'), or an option for a later standard
  version, is used.
  
!  The way to solve these problems is to put `__' at the beginning and
! end of each problematical keyword.  For example, use `__asm__' instead
! of `asm', and `__inline__' instead of `inline'.
  
   Other C compilers won't accept these alternative keywords; if you want
  to compile with another compiler, you can define the alternate keywords
--- 34422,34441 ----
  6.45 Alternate Keywords
  =======================
  
! '-ansi' and the various '-std' options disable certain keywords.  This
  causes trouble when you want to use GNU C extensions, or a
  general-purpose header file that should be usable by all programs,
! including ISO C programs.  The keywords 'asm', 'typeof' and 'inline' are
! not available in programs compiled with '-ansi' or '-std' (although
! 'inline' can be used in a program compiled with '-std=c99' or
! '-std=c11').  The ISO C99 keyword 'restrict' is only available when
! '-std=gnu99' (which will eventually be the default) or '-std=c99' (or
! the equivalent '-std=iso9899:1999'), or an option for a later standard
  version, is used.
  
!  The way to solve these problems is to put '__' at the beginning and end
! of each problematical keyword.  For example, use '__asm__' instead of
! 'asm', and '__inline__' instead of 'inline'.
  
   Other C compilers won't accept these alternative keywords; if you want
  to compile with another compiler, you can define the alternate keywords
*************** this:
*** 34777,34803 ****
       #define __asm__ asm
       #endif
  
!  `-pedantic' and other options cause warnings for many GNU C extensions.
  You can prevent such warnings within one expression by writing
! `__extension__' before the expression.  `__extension__' has no effect
  aside from this.
  
  
  File: gcc.info,  Node: Incomplete Enums,  Next: Function Names,  Prev: Alternate Keywords,  Up: C Extensions
  
! 6.46 Incomplete `enum' Types
  ============================
  
! You can define an `enum' tag without specifying its possible values.
  This results in an incomplete type, much like what you get if you write
! `struct foo' without describing the elements.  A later declaration that
  does specify the possible values completes the type.
  
   You can't allocate variables or storage using the type while it is
  incomplete.  However, you can work with pointers to that type.
  
   This extension may not be very useful, but it makes the handling of
! `enum' more consistent with the way `struct' and `union' are handled.
  
   This extension is not supported by GNU C++.
  
--- 34446,34472 ----
       #define __asm__ asm
       #endif
  
!  '-pedantic' and other options cause warnings for many GNU C extensions.
  You can prevent such warnings within one expression by writing
! '__extension__' before the expression.  '__extension__' has no effect
  aside from this.
  
  
  File: gcc.info,  Node: Incomplete Enums,  Next: Function Names,  Prev: Alternate Keywords,  Up: C Extensions
  
! 6.46 Incomplete 'enum' Types
  ============================
  
! You can define an 'enum' tag without specifying its possible values.
  This results in an incomplete type, much like what you get if you write
! 'struct foo' without describing the elements.  A later declaration that
  does specify the possible values completes the type.
  
   You can't allocate variables or storage using the type while it is
  incomplete.  However, you can work with pointers to that type.
  
   This extension may not be very useful, but it makes the handling of
! 'enum' more consistent with the way 'struct' and 'union' are handled.
  
   This extension is not supported by GNU C++.
  
*************** File: gcc.info,  Node: Function Names,
*** 34808,34830 ****
  ==============================
  
  GCC provides three magic variables that hold the name of the current
! function, as a string.  The first of these is `__func__', which is part
  of the C99 standard:
  
!  The identifier `__func__' is implicitly declared by the translator as
! if, immediately following the opening brace of each function
! definition, the declaration
  
       static const char __func__[] = "function-name";
  
  appeared, where function-name is the name of the lexically-enclosing
  function.  This name is the unadorned name of the function.
  
!  `__FUNCTION__' is another name for `__func__', provided for backward
  compatibility with old versions of GCC.
  
!  In C, `__PRETTY_FUNCTION__' is yet another name for `__func__'.
! However, in C++, `__PRETTY_FUNCTION__' contains the type signature of
  the function as well as its bare name.  For example, this program:
  
       extern "C" {
--- 34477,34499 ----
  ==============================
  
  GCC provides three magic variables that hold the name of the current
! function, as a string.  The first of these is '__func__', which is part
  of the C99 standard:
  
!  The identifier '__func__' is implicitly declared by the translator as
! if, immediately following the opening brace of each function definition,
! the declaration
  
       static const char __func__[] = "function-name";
  
  appeared, where function-name is the name of the lexically-enclosing
  function.  This name is the unadorned name of the function.
  
!  '__FUNCTION__' is another name for '__func__', provided for backward
  compatibility with old versions of GCC.
  
!  In C, '__PRETTY_FUNCTION__' is yet another name for '__func__'.
! However, in C++, '__PRETTY_FUNCTION__' contains the type signature of
  the function as well as its bare name.  For example, this program:
  
       extern "C" {
*************** gives this output:
*** 34854,34860 ****
       __PRETTY_FUNCTION__ = void a::sub(int)
  
   These identifiers are variables, not preprocessor macros, and may not
! be used to initialize `char' arrays or be concatenated with other string
  literals.
  
  
--- 34523,34529 ----
       __PRETTY_FUNCTION__ = void a::sub(int)
  
   These identifiers are variables, not preprocessor macros, and may not
! be used to initialize 'char' arrays or be concatenated with other string
  literals.
  
  
*************** function.
*** 34870,34919 ****
            LEVEL)
       This function returns the return address of the current function,
       or of one of its callers.  The LEVEL argument is number of frames
!      to scan up the call stack.  A value of `0' yields the return
!      address of the current function, a value of `1' yields the return
       address of the caller of the current function, and so forth.  When
       inlining the expected behavior is that the function returns the
       address of the function that is returned to.  To work around this
!      behavior use the `noinline' function attribute.
  
       The LEVEL argument must be a constant integer.
  
       On some machines it may be impossible to determine the return
       address of any function other than the current one; in such cases,
       or when the top of the stack has been reached, this function
!      returns `0' or a random value.  In addition,
!      `__builtin_frame_address' may be used to determine if the top of
       the stack has been reached.
  
       Additional post-processing of the returned value may be needed, see
!      `__builtin_extract_return_addr'.
  
       Calling this function with a nonzero argument can have
       unpredictable effects, including crashing the calling program.  As
       a result, calls that are considered unsafe are diagnosed when the
!      `-Wframe-address' option is in effect.  Such calls should only be
       made in debugging situations.
  
   -- Built-in Function: void * __builtin_extract_return_addr (void *ADDR)
!      The address as returned by `__builtin_return_address' may have to
       be fed through this function to get the actual encoded address.
!      For example, on the 31-bit S/390 platform the highest bit has to
!      be masked out, or on SPARC platforms an offset has to be added for
!      the true next instruction to be executed.
  
       If no fixup is needed, this function simply passes through ADDR.
  
   -- Built-in Function: void * __builtin_frob_return_address (void *ADDR)
!      This function does the reverse of `__builtin_extract_return_addr'.
  
   -- Built-in Function: void * __builtin_frame_address (unsigned int
            LEVEL)
!      This function is similar to `__builtin_return_address', but it
       returns the address of the function frame rather than the return
!      address of the function.  Calling `__builtin_frame_address' with a
!      value of `0' yields the frame address of the current function, a
!      value of `1' yields the frame address of the caller of the current
       function, and so forth.
  
       The frame is the area on the stack that holds local variables and
--- 34539,34588 ----
            LEVEL)
       This function returns the return address of the current function,
       or of one of its callers.  The LEVEL argument is number of frames
!      to scan up the call stack.  A value of '0' yields the return
!      address of the current function, a value of '1' yields the return
       address of the caller of the current function, and so forth.  When
       inlining the expected behavior is that the function returns the
       address of the function that is returned to.  To work around this
!      behavior use the 'noinline' function attribute.
  
       The LEVEL argument must be a constant integer.
  
       On some machines it may be impossible to determine the return
       address of any function other than the current one; in such cases,
       or when the top of the stack has been reached, this function
!      returns '0' or a random value.  In addition,
!      '__builtin_frame_address' may be used to determine if the top of
       the stack has been reached.
  
       Additional post-processing of the returned value may be needed, see
!      '__builtin_extract_return_addr'.
  
       Calling this function with a nonzero argument can have
       unpredictable effects, including crashing the calling program.  As
       a result, calls that are considered unsafe are diagnosed when the
!      '-Wframe-address' option is in effect.  Such calls should only be
       made in debugging situations.
  
   -- Built-in Function: void * __builtin_extract_return_addr (void *ADDR)
!      The address as returned by '__builtin_return_address' may have to
       be fed through this function to get the actual encoded address.
!      For example, on the 31-bit S/390 platform the highest bit has to be
!      masked out, or on SPARC platforms an offset has to be added for the
!      true next instruction to be executed.
  
       If no fixup is needed, this function simply passes through ADDR.
  
   -- Built-in Function: void * __builtin_frob_return_address (void *ADDR)
!      This function does the reverse of '__builtin_extract_return_addr'.
  
   -- Built-in Function: void * __builtin_frame_address (unsigned int
            LEVEL)
!      This function is similar to '__builtin_return_address', but it
       returns the address of the function frame rather than the return
!      address of the function.  Calling '__builtin_frame_address' with a
!      value of '0' yields the frame address of the current function, a
!      value of '1' yields the frame address of the caller of the current
       function, and so forth.
  
       The frame is the area on the stack that holds local variables and
*************** function.
*** 34922,34940 ****
       exact definition depends upon the processor and the calling
       convention.  If the processor has a dedicated frame pointer
       register, and the function has a frame, then
!      `__builtin_frame_address' returns the value of the frame pointer
       register.
  
       On some machines it may be impossible to determine the frame
       address of any function other than the current one; in such cases,
       or when the top of the stack has been reached, this function
!      returns `0' if the first frame pointer is properly initialized by
       the startup code.
  
       Calling this function with a nonzero argument can have
       unpredictable effects, including crashing the calling program.  As
       a result, calls that are considered unsafe are diagnosed when the
!      `-Wframe-address' option is in effect.  Such calls should only be
       made in debugging situations.
  
  
--- 34591,34609 ----
       exact definition depends upon the processor and the calling
       convention.  If the processor has a dedicated frame pointer
       register, and the function has a frame, then
!      '__builtin_frame_address' returns the value of the frame pointer
       register.
  
       On some machines it may be impossible to determine the frame
       address of any function other than the current one; in such cases,
       or when the top of the stack has been reached, this function
!      returns '0' if the first frame pointer is properly initialized by
       the startup code.
  
       Calling this function with a nonzero argument can have
       unpredictable effects, including crashing the calling program.  As
       a result, calls that are considered unsafe are diagnosed when the
!      '-Wframe-address' option is in effect.  Such calls should only be
       made in debugging situations.
  
  
*************** same time.  For example, on the x86 the
*** 34949,34988 ****
  can be used this way.
  
   The first step in using these extensions is to provide the necessary
! data types.  This should be done using an appropriate `typedef':
  
       typedef int v4si __attribute__ ((vector_size (16)));
  
! The `int' type specifies the base type, while the attribute specifies
  the vector size for the variable, measured in bytes.  For example, the
! declaration above causes the compiler to set the mode for the `v4si'
! type to be 16 bytes wide and divided into `int' sized units.  For a
! 32-bit `int' this means a vector of 4 units of 4 bytes, and the
! corresponding mode of `foo' is V4SI.
  
!  The `vector_size' attribute is only applicable to integral and float
  scalars, although arrays, pointers, and function return values are
! allowed in conjunction with this construct. Only sizes that are a power
  of two are currently allowed.
  
   All the basic integer types can be used as base types, both as signed
! and as unsigned: `char', `short', `int', `long', `long long'.  In
! addition, `float' and `double' can be used to build floating-point
  vector types.
  
   Specifying a combination that is not valid for the current architecture
  causes GCC to synthesize the instructions using a narrower mode.  For
! example, if you specify a variable of type `V4SI' and your architecture
  does not allow for this specific SIMD type, GCC produces code that uses
! 4 `SIs'.
  
   The types defined in this manner can be used with a subset of normal C
  operations.  Currently, GCC allows using the following operators on
! these types: `+, -, *, /, unary minus, ^, |, &, ~, %'.
  
!  The operations behave like C++ `valarrays'.  Addition is defined as
! the addition of the corresponding elements of the operands.  For
! example, in the code below, each of the 4 elements in A is added to the
  corresponding 4 elements in B and the resulting vector is stored in C.
  
       typedef int v4si __attribute__ ((vector_size (16)));
--- 34618,34657 ----
  can be used this way.
  
   The first step in using these extensions is to provide the necessary
! data types.  This should be done using an appropriate 'typedef':
  
       typedef int v4si __attribute__ ((vector_size (16)));
  
! The 'int' type specifies the base type, while the attribute specifies
  the vector size for the variable, measured in bytes.  For example, the
! declaration above causes the compiler to set the mode for the 'v4si'
! type to be 16 bytes wide and divided into 'int' sized units.  For a
! 32-bit 'int' this means a vector of 4 units of 4 bytes, and the
! corresponding mode of 'foo' is V4SI.
  
!  The 'vector_size' attribute is only applicable to integral and float
  scalars, although arrays, pointers, and function return values are
! allowed in conjunction with this construct.  Only sizes that are a power
  of two are currently allowed.
  
   All the basic integer types can be used as base types, both as signed
! and as unsigned: 'char', 'short', 'int', 'long', 'long long'.  In
! addition, 'float' and 'double' can be used to build floating-point
  vector types.
  
   Specifying a combination that is not valid for the current architecture
  causes GCC to synthesize the instructions using a narrower mode.  For
! example, if you specify a variable of type 'V4SI' and your architecture
  does not allow for this specific SIMD type, GCC produces code that uses
! 4 'SIs'.
  
   The types defined in this manner can be used with a subset of normal C
  operations.  Currently, GCC allows using the following operators on
! these types: '+, -, *, /, unary minus, ^, |, &, ~, %'.
  
!  The operations behave like C++ 'valarrays'.  Addition is defined as the
! addition of the corresponding elements of the operands.  For example, in
! the code below, each of the 4 elements in A is added to the
  corresponding 4 elements in B and the resulting vector is stored in C.
  
       typedef int v4si __attribute__ ((vector_size (16)));
*************** minus or complement operators on a vecto
*** 34997,35011 ****
  elements are the negative or complemented values of the corresponding
  elements in the operand.
  
!  It is possible to use shifting operators `<<', `>>' on integer-type
! vectors. The operation is defined as following: `{a0, a1, ..., an} >>
! {b0, b1, ..., bn} == {a0 >> b0, a1 >> b1, ..., an >> bn}'. Vector
  operands must have the same number of elements.
  
   For convenience, it is allowed to use a binary vector operation where
! one operand is a scalar. In that case the compiler transforms the
  scalar operand into a vector where each element is the scalar from the
! operation. The transformation happens only if the scalar could be
  safely converted to the vector-element type.  Consider the following
  code.
  
--- 34666,34680 ----
  elements are the negative or complemented values of the corresponding
  elements in the operand.
  
!  It is possible to use shifting operators '<<', '>>' on integer-type
! vectors.  The operation is defined as following: '{a0, a1, ..., an} >>
! {b0, b1, ..., bn} == {a0 >> b0, a1 >> b1, ..., an >> bn}'.  Vector
  operands must have the same number of elements.
  
   For convenience, it is allowed to use a binary vector operation where
! one operand is a scalar.  In that case the compiler transforms the
  scalar operand into a vector where each element is the scalar from the
! operation.  The transformation happens only if the scalar could be
  safely converted to the vector-element type.  Consider the following
  code.
  
*************** code.
*** 35019,35039 ****
  
       a = l + a;    /* Error, cannot convert long to int. */
  
!  Vectors can be subscripted as if the vector were an array with the
! same number of elements and base type.  Out of bound accesses invoke
  undefined behavior at run time.  Warnings for out of bound accesses for
! vector subscription can be enabled with `-Warray-bounds'.
  
!  Vector comparison is supported with standard comparison operators:
! `==, !=, <, <=, >, >='. Comparison operands can be vector expressions
! of integer-type or real-type. Comparison between integer-type vectors
! and real-type vectors are not supported.  The result of the comparison
! is a vector of the same width and number of elements as the comparison
  operands with a signed integral element type.
  
   Vectors are compared element-wise producing 0 when comparison is false
  and -1 (constant of the appropriate type where all bits are set)
! otherwise. Consider the following example.
  
       typedef int v4si __attribute__ ((vector_size (16)));
  
--- 34688,34708 ----
  
       a = l + a;    /* Error, cannot convert long to int. */
  
!  Vectors can be subscripted as if the vector were an array with the same
! number of elements and base type.  Out of bound accesses invoke
  undefined behavior at run time.  Warnings for out of bound accesses for
! vector subscription can be enabled with '-Warray-bounds'.
  
!  Vector comparison is supported with standard comparison operators: '==,
! !=, <, <=, >, >='.  Comparison operands can be vector expressions of
! integer-type or real-type.  Comparison between integer-type vectors and
! real-type vectors are not supported.  The result of the comparison is a
! vector of the same width and number of elements as the comparison
  operands with a signed integral element type.
  
   Vectors are compared element-wise producing 0 when comparison is false
  and -1 (constant of the appropriate type where all bits are set)
! otherwise.  Consider the following example.
  
       typedef int v4si __attribute__ ((vector_size (16)));
  
*************** otherwise. Consider the following exampl
*** 35044,35074 ****
       c = a >  b;     /* The result would be {0, 0,-1, 0}  */
       c = a == b;     /* The result would be {0,-1, 0,-1}  */
  
!  In C++, the ternary operator `?:' is available. `a?b:c', where `b' and
! `c' are vectors of the same type and `a' is an integer vector with the
! same number of elements of the same size as `b' and `c', computes all
! three arguments and creates a vector `{a[0]?b[0]:c[0], a[1]?b[1]:c[1],
! ...}'.  Note that unlike in OpenCL, `a' is thus interpreted as `a != 0'
! and not `a < 0'.  As in the case of binary operations, this syntax is
! also accepted when one of `b' or `c' is a scalar that is then
! transformed into a vector. If both `b' and `c' are scalars and the type
! of `true?b:c' has the same size as the element type of `a', then `b'
! and `c' are converted to a vector type whose elements have this type
! and with the same number of elements as `a'.
  
!  In C++, the logic operators `!, &&, ||' are available for vectors.
! `!v' is equivalent to `v == 0', `a && b' is equivalent to `a!=0 & b!=0'
! and `a || b' is equivalent to `a!=0 | b!=0'.  For mixed operations
! between a scalar `s' and a vector `v', `s && v' is equivalent to
! `s?v!=0:0' (the evaluation is short-circuit) and `v && s' is equivalent
! to `v!=0 & (s?-1:0)'.
  
!  Vector shuffling is available using functions `__builtin_shuffle (vec,
! mask)' and `__builtin_shuffle (vec0, vec1, mask)'.  Both functions
! construct a permutation of elements from one or two vectors and return
! a vector of the same type as the input vector(s).  The MASK is an
! integral vector with the same width (W) and element count (N) as the
! output vector.
  
   The elements of the input vectors are numbered in memory ordering of
  VEC0 beginning at 0 and VEC1 beginning at N.  The elements of MASK are
--- 34713,34743 ----
       c = a >  b;     /* The result would be {0, 0,-1, 0}  */
       c = a == b;     /* The result would be {0,-1, 0,-1}  */
  
!  In C++, the ternary operator '?:' is available.  'a?b:c', where 'b' and
! 'c' are vectors of the same type and 'a' is an integer vector with the
! same number of elements of the same size as 'b' and 'c', computes all
! three arguments and creates a vector '{a[0]?b[0]:c[0], a[1]?b[1]:c[1],
! ...}'.  Note that unlike in OpenCL, 'a' is thus interpreted as 'a != 0'
! and not 'a < 0'.  As in the case of binary operations, this syntax is
! also accepted when one of 'b' or 'c' is a scalar that is then
! transformed into a vector.  If both 'b' and 'c' are scalars and the type
! of 'true?b:c' has the same size as the element type of 'a', then 'b' and
! 'c' are converted to a vector type whose elements have this type and
! with the same number of elements as 'a'.
  
!  In C++, the logic operators '!, &&, ||' are available for vectors.
! '!v' is equivalent to 'v == 0', 'a && b' is equivalent to 'a!=0 & b!=0'
! and 'a || b' is equivalent to 'a!=0 | b!=0'.  For mixed operations
! between a scalar 's' and a vector 'v', 's && v' is equivalent to
! 's?v!=0:0' (the evaluation is short-circuit) and 'v && s' is equivalent
! to 'v!=0 & (s?-1:0)'.
  
!  Vector shuffling is available using functions '__builtin_shuffle (vec,
! mask)' and '__builtin_shuffle (vec0, vec1, mask)'.  Both functions
! construct a permutation of elements from one or two vectors and return a
! vector of the same type as the input vector(s).  The MASK is an integral
! vector with the same width (W) and element count (N) as the output
! vector.
  
   The elements of the input vectors are numbered in memory ordering of
  VEC0 beginning at 0 and VEC1 beginning at N.  The elements of MASK are
*************** two-operand case.
*** 35088,35099 ****
       res = __builtin_shuffle (a, mask1);       /* res is {1,2,2,4}  */
       res = __builtin_shuffle (a, b, mask2);    /* res is {1,5,3,6}  */
  
!  Note that `__builtin_shuffle' is intentionally semantically compatible
! with the OpenCL `shuffle' and `shuffle2' functions.
  
   You can declare variables and use them in function calls and returns,
! as well as in assignments and some casts.  You can specify a vector
! type as a return type for a function.  Vector types can also be used as
  function arguments.  It is possible to cast from one vector type to
  another, provided they are of the same size (in fact, you can also cast
  vectors to and from other datatypes of the same size).
--- 34757,34768 ----
       res = __builtin_shuffle (a, mask1);       /* res is {1,2,2,4}  */
       res = __builtin_shuffle (a, b, mask2);    /* res is {1,5,3,6}  */
  
!  Note that '__builtin_shuffle' is intentionally semantically compatible
! with the OpenCL 'shuffle' and 'shuffle2' functions.
  
   You can declare variables and use them in function calls and returns,
! as well as in assignments and some casts.  You can specify a vector type
! as a return type for a function.  Vector types can also be used as
  function arguments.  It is possible to cast from one vector type to
  another, provided they are of the same size (in fact, you can also cast
  vectors to and from other datatypes of the same size).
*************** signedness without a cast.
*** 35104,35160 ****
  
  File: gcc.info,  Node: Offsetof,  Next: __sync Builtins,  Prev: Vector Extensions,  Up: C Extensions
  
! 6.50 Support for `offsetof'
  ===========================
  
! GCC implements for both C and C++ a syntactic extension to implement
! the `offsetof' macro.
  
       primary:
!              "__builtin_offsetof" "(" `typename' "," offsetof_member_designator ")"
  
       offsetof_member_designator:
!                `identifier'
!              | offsetof_member_designator "." `identifier'
!              | offsetof_member_designator "[" `expr' "]"
  
   This extension is sufficient such that
  
       #define offsetof(TYPE, MEMBER)  __builtin_offsetof (TYPE, MEMBER)
  
! is a suitable definition of the `offsetof' macro.  In C++, TYPE may be
  dependent.  In either case, MEMBER may consist of a single identifier,
  or a sequence of member accesses and array references.
  
  
  File: gcc.info,  Node: __sync Builtins,  Next: __atomic Builtins,  Prev: Offsetof,  Up: C Extensions
  
! 6.51 Legacy `__sync' Built-in Functions for Atomic Memory Access
  ================================================================
  
  The following built-in functions are intended to be compatible with
! those described in the `Intel Itanium Processor-specific Application
  Binary Interface', section 7.4.  As such, they depart from normal GCC
! practice by not using the `__builtin_' prefix and also by being
  overloaded so that they work on multiple types.
  
!  The definition given in the Intel documentation allows only for the
! use of the types `int', `long', `long long' or their unsigned
! counterparts.  GCC allows any scalar type that is 1, 2, 4 or 8 bytes in
! size other than the C type `_Bool' or the C++ type `bool'.  Operations
! on pointer arguments are performed as if the operands were of the
! `uintptr_t' type.  That is, they are not scaled by the size of the type
! to which the pointer points.
  
!  These functions are implemented in terms of the `__atomic' builtins
! (*note __atomic Builtins::).  They should not be used for new code
! which should use the `__atomic' builtins instead.
  
   Not all operations are supported by all target processors.  If a
  particular operation cannot be implemented on the target processor, a
  warning is generated and a call to an external function is generated.
  The external function carries the same name as the built-in version,
! with an additional suffix `_N' where N is the size of the data type.
  
   In most cases, these built-in functions are considered a "full
  barrier".  That is, no memory operand is moved across the operation,
--- 34773,34829 ----
  
  File: gcc.info,  Node: Offsetof,  Next: __sync Builtins,  Prev: Vector Extensions,  Up: C Extensions
  
! 6.50 Support for 'offsetof'
  ===========================
  
! GCC implements for both C and C++ a syntactic extension to implement the
! 'offsetof' macro.
  
       primary:
!              "__builtin_offsetof" "(" typename "," offsetof_member_designator ")"
  
       offsetof_member_designator:
!                identifier
!              | offsetof_member_designator "." identifier
!              | offsetof_member_designator "[" expr "]"
  
   This extension is sufficient such that
  
       #define offsetof(TYPE, MEMBER)  __builtin_offsetof (TYPE, MEMBER)
  
! is a suitable definition of the 'offsetof' macro.  In C++, TYPE may be
  dependent.  In either case, MEMBER may consist of a single identifier,
  or a sequence of member accesses and array references.
  
  
  File: gcc.info,  Node: __sync Builtins,  Next: __atomic Builtins,  Prev: Offsetof,  Up: C Extensions
  
! 6.51 Legacy '__sync' Built-in Functions for Atomic Memory Access
  ================================================================
  
  The following built-in functions are intended to be compatible with
! those described in the 'Intel Itanium Processor-specific Application
  Binary Interface', section 7.4.  As such, they depart from normal GCC
! practice by not using the '__builtin_' prefix and also by being
  overloaded so that they work on multiple types.
  
!  The definition given in the Intel documentation allows only for the use
! of the types 'int', 'long', 'long long' or their unsigned counterparts.
! GCC allows any scalar type that is 1, 2, 4 or 8 bytes in size other than
! the C type '_Bool' or the C++ type 'bool'.  Operations on pointer
! arguments are performed as if the operands were of the 'uintptr_t' type.
! That is, they are not scaled by the size of the type to which the
! pointer points.
  
!  These functions are implemented in terms of the '__atomic' builtins
! (*note __atomic Builtins::).  They should not be used for new code which
! should use the '__atomic' builtins instead.
  
   Not all operations are supported by all target processors.  If a
  particular operation cannot be implemented on the target processor, a
  warning is generated and a call to an external function is generated.
  The external function carries the same name as the built-in version,
! with an additional suffix '_N' where N is the size of the data type.
  
   In most cases, these built-in functions are considered a "full
  barrier".  That is, no memory operand is moved across the operation,
*************** operation and from queuing stores after
*** 35165,35186 ****
   All of the routines are described in the Intel documentation to take
  "an optional list of variables protected by the memory barrier".  It's
  not clear what is meant by that; it could mean that _only_ the listed
! variables are protected, or it could mean a list of additional
! variables to be protected.  The list is ignored by GCC which treats it
! as empty.  GCC interprets an empty list as meaning that all globally
! accessible variables should be protected.
  
! `TYPE __sync_fetch_and_add (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_fetch_and_sub (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_fetch_and_or (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_fetch_and_and (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_fetch_and_xor (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_fetch_and_nand (TYPE *ptr, TYPE value, ...)'
       These built-in functions perform the operation suggested by the
       name, and returns the value that had previously been in memory.
       That is, operations on integer operands have the following
!      semantics.  Operations on pointer arguments are performed as if
!      the operands were of the `uintptr_t' type.  That is, they are not
       scaled by the size of the type to which the pointer points.
  
            { tmp = *ptr; *ptr OP= value; return tmp; }
--- 34834,34855 ----
   All of the routines are described in the Intel documentation to take
  "an optional list of variables protected by the memory barrier".  It's
  not clear what is meant by that; it could mean that _only_ the listed
! variables are protected, or it could mean a list of additional variables
! to be protected.  The list is ignored by GCC which treats it as empty.
! GCC interprets an empty list as meaning that all globally accessible
! variables should be protected.
  
! 'TYPE __sync_fetch_and_add (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_fetch_and_sub (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_fetch_and_or (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_fetch_and_and (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_fetch_and_xor (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_fetch_and_nand (TYPE *ptr, TYPE value, ...)'
       These built-in functions perform the operation suggested by the
       name, and returns the value that had previously been in memory.
       That is, operations on integer operands have the following
!      semantics.  Operations on pointer arguments are performed as if the
!      operands were of the 'uintptr_t' type.  That is, they are not
       scaled by the size of the type to which the pointer points.
  
            { tmp = *ptr; *ptr OP= value; return tmp; }
*************** accessible variables should be protected
*** 35189,35241 ****
       The object pointed to by the first argument must be of integer or
       pointer type.  It must not be a Boolean type.
  
!      _Note:_ GCC 4.4 and later implement `__sync_fetch_and_nand' as
!      `*ptr = ~(tmp & value)' instead of `*ptr = ~tmp & value'.
  
! `TYPE __sync_add_and_fetch (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_sub_and_fetch (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_or_and_fetch (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_and_and_fetch (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_xor_and_fetch (TYPE *ptr, TYPE value, ...)'
! `TYPE __sync_nand_and_fetch (TYPE *ptr, TYPE value, ...)'
       These built-in functions perform the operation suggested by the
       name, and return the new value.  That is, operations on integer
       operands have the following semantics.  Operations on pointer
!      operands are performed as if the operand's type were `uintptr_t'.
  
            { *ptr OP= value; return *ptr; }
            { *ptr = ~(*ptr & value); return *ptr; }   // nand
  
       The same constraints on arguments apply as for the corresponding
!      `__sync_op_and_fetch' built-in functions.
  
!      _Note:_ GCC 4.4 and later implement `__sync_nand_and_fetch' as
!      `*ptr = ~(*ptr & value)' instead of `*ptr = ~*ptr & value'.
  
! `bool __sync_bool_compare_and_swap (TYPE *ptr, TYPE oldval, TYPE newval, ...)'
! `TYPE __sync_val_compare_and_swap (TYPE *ptr, TYPE oldval, TYPE newval, ...)'
       These built-in functions perform an atomic compare and swap.  That
!      is, if the current value of `*PTR' is OLDVAL, then write NEWVAL
!      into `*PTR'.
  
       The "bool" version returns true if the comparison is successful and
       NEWVAL is written.  The "val" version returns the contents of
!      `*PTR' before the operation.
  
! `__sync_synchronize (...)'
       This built-in function issues a full memory barrier.
  
! `TYPE __sync_lock_test_and_set (TYPE *ptr, TYPE value, ...)'
!      This built-in function, as described by Intel, is not a
!      traditional test-and-set operation, but rather an atomic exchange
!      operation.  It writes VALUE into `*PTR', and returns the previous
!      contents of `*PTR'.
  
       Many targets have only minimal support for such locks, and do not
       support a full exchange operation.  In this case, a target may
       support reduced functionality here by which the _only_ valid value
       to store is the immediate constant 1.  The exact value actually
!      stored in `*PTR' is implementation defined.
  
       This built-in function is not a full barrier, but rather an
       "acquire barrier".  This means that references after the operation
--- 34858,34910 ----
       The object pointed to by the first argument must be of integer or
       pointer type.  It must not be a Boolean type.
  
!      _Note:_ GCC 4.4 and later implement '__sync_fetch_and_nand' as
!      '*ptr = ~(tmp & value)' instead of '*ptr = ~tmp & value'.
  
! 'TYPE __sync_add_and_fetch (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_sub_and_fetch (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_or_and_fetch (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_and_and_fetch (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_xor_and_fetch (TYPE *ptr, TYPE value, ...)'
! 'TYPE __sync_nand_and_fetch (TYPE *ptr, TYPE value, ...)'
       These built-in functions perform the operation suggested by the
       name, and return the new value.  That is, operations on integer
       operands have the following semantics.  Operations on pointer
!      operands are performed as if the operand's type were 'uintptr_t'.
  
            { *ptr OP= value; return *ptr; }
            { *ptr = ~(*ptr & value); return *ptr; }   // nand
  
       The same constraints on arguments apply as for the corresponding
!      '__sync_op_and_fetch' built-in functions.
  
!      _Note:_ GCC 4.4 and later implement '__sync_nand_and_fetch' as
!      '*ptr = ~(*ptr & value)' instead of '*ptr = ~*ptr & value'.
  
! 'bool __sync_bool_compare_and_swap (TYPE *ptr, TYPE oldval, TYPE newval, ...)'
! 'TYPE __sync_val_compare_and_swap (TYPE *ptr, TYPE oldval, TYPE newval, ...)'
       These built-in functions perform an atomic compare and swap.  That
!      is, if the current value of '*PTR' is OLDVAL, then write NEWVAL
!      into '*PTR'.
  
       The "bool" version returns true if the comparison is successful and
       NEWVAL is written.  The "val" version returns the contents of
!      '*PTR' before the operation.
  
! '__sync_synchronize (...)'
       This built-in function issues a full memory barrier.
  
! 'TYPE __sync_lock_test_and_set (TYPE *ptr, TYPE value, ...)'
!      This built-in function, as described by Intel, is not a traditional
!      test-and-set operation, but rather an atomic exchange operation.
!      It writes VALUE into '*PTR', and returns the previous contents of
!      '*PTR'.
  
       Many targets have only minimal support for such locks, and do not
       support a full exchange operation.  In this case, a target may
       support reduced functionality here by which the _only_ valid value
       to store is the immediate constant 1.  The exact value actually
!      stored in '*PTR' is implementation defined.
  
       This built-in function is not a full barrier, but rather an
       "acquire barrier".  This means that references after the operation
*************** accessible variables should be protected
*** 35243,35258 ****
       previous memory stores may not be globally visible yet, and
       previous memory loads may not yet be satisfied.
  
! `void __sync_lock_release (TYPE *ptr, ...)'
       This built-in function releases the lock acquired by
!      `__sync_lock_test_and_set'.  Normally this means writing the
!      constant 0 to `*PTR'.
  
!      This built-in function is not a full barrier, but rather a
!      "release barrier".  This means that all previous memory stores are
!      globally visible, and all previous memory loads have been
!      satisfied, but following memory reads are not prevented from being
!      speculated to before the barrier.
  
  
  File: gcc.info,  Node: __atomic Builtins,  Next: Integer Overflow Builtins,  Prev: __sync Builtins,  Up: C Extensions
--- 34912,34927 ----
       previous memory stores may not be globally visible yet, and
       previous memory loads may not yet be satisfied.
  
! 'void __sync_lock_release (TYPE *ptr, ...)'
       This built-in function releases the lock acquired by
!      '__sync_lock_test_and_set'.  Normally this means writing the
!      constant 0 to '*PTR'.
  
!      This built-in function is not a full barrier, but rather a "release
!      barrier".  This means that all previous memory stores are globally
!      visible, and all previous memory loads have been satisfied, but
!      following memory reads are not prevented from being speculated to
!      before the barrier.
  
  
  File: gcc.info,  Node: __atomic Builtins,  Next: Integer Overflow Builtins,  Prev: __sync Builtins,  Up: C Extensions
*************** File: gcc.info,  Node: __atomic Builtins
*** 35262,35290 ****
  
  The following built-in functions approximately match the requirements
  for the C++11 memory model.  They are all identified by being prefixed
! with `__atomic' and most are overloaded so that they work with multiple
  types.
  
!  These functions are intended to replace the legacy `__sync' builtins.
  The main difference is that the memory order that is requested is a
! parameter to the functions.  New code should always use the `__atomic'
! builtins rather than the `__sync' builtins.
  
!  Note that the `__atomic' builtins assume that programs will conform to
  the C++11 memory model.  In particular, they assume that programs are
  free of data races.  See the C++11 standard for detailed requirements.
  
!  The `__atomic' builtins can be used with any integral scalar or
! pointer type that is 1, 2, 4, or 8 bytes in length.  16-byte integral
! types are also allowed if `__int128' (*note __int128::) is supported by
! the architecture.
  
   The four non-arithmetic functions (load, store, exchange, and
  compare_exchange) all have a generic version as well.  This generic
  version works on any data type.  It uses the lock-free built-in function
  if the specific data type size makes that possible; otherwise, an
  external call is left to be resolved at run time.  This external call is
! the same format with the addition of a `size_t' parameter inserted as
  the first parameter indicating the size of the object being pointed to.
  All objects must be the same size.
  
--- 34931,34959 ----
  
  The following built-in functions approximately match the requirements
  for the C++11 memory model.  They are all identified by being prefixed
! with '__atomic' and most are overloaded so that they work with multiple
  types.
  
!  These functions are intended to replace the legacy '__sync' builtins.
  The main difference is that the memory order that is requested is a
! parameter to the functions.  New code should always use the '__atomic'
! builtins rather than the '__sync' builtins.
  
!  Note that the '__atomic' builtins assume that programs will conform to
  the C++11 memory model.  In particular, they assume that programs are
  free of data races.  See the C++11 standard for detailed requirements.
  
!  The '__atomic' builtins can be used with any integral scalar or pointer
! type that is 1, 2, 4, or 8 bytes in length.  16-byte integral types are
! also allowed if '__int128' (*note __int128::) is supported by the
! architecture.
  
   The four non-arithmetic functions (load, store, exchange, and
  compare_exchange) all have a generic version as well.  This generic
  version works on any data type.  It uses the lock-free built-in function
  if the specific data type size makes that possible; otherwise, an
  external call is left to be resolved at run time.  This external call is
! the same format with the addition of a 'size_t' parameter inserted as
  the first parameter indicating the size of the object being pointed to.
  All objects must be the same size.
  
*************** strength.  The description of each memor
*** 35304,35344 ****
  illustrate the effects and is not a specification; see the C++11 memory
  model for precise semantics.
  
! `__ATOMIC_RELAXED'
       Implies no inter-thread ordering constraints.
! 
! `__ATOMIC_CONSUME'
!      This is currently implemented using the stronger `__ATOMIC_ACQUIRE'
       memory order because of a deficiency in C++11's semantics for
!      `memory_order_consume'.
! 
! `__ATOMIC_ACQUIRE'
       Creates an inter-thread happens-before constraint from the release
       (or stronger) semantic store to this acquire load.  Can prevent
       hoisting of code to before the operation.
! 
! `__ATOMIC_RELEASE'
       Creates an inter-thread happens-before constraint to acquire (or
       stronger) semantic loads that read from this release store.  Can
       prevent sinking of code to after the operation.
! 
! `__ATOMIC_ACQ_REL'
!      Combines the effects of both `__ATOMIC_ACQUIRE' and
!      `__ATOMIC_RELEASE'.
! 
! `__ATOMIC_SEQ_CST'
!      Enforces total ordering with all other `__ATOMIC_SEQ_CST'
       operations.
  
   Note that in the C++11 memory model, _fences_ (e.g.,
! `__atomic_thread_fence') take effect in combination with other atomic
! operations on specific memory locations (e.g., atomic loads);
! operations on specific memory locations do not necessarily affect other
! operations in the same way.
  
   Target architectures are encouraged to provide their own patterns for
  each of the atomic built-in functions.  If no target is provided, the
! original non-memory model set of `__sync' atomic built-in functions are
  used, along with any required synchronization fences surrounding it in
  order to achieve the proper behavior.  Execution in this case is subject
  to the same restrictions as those built-in functions.
--- 34973,35008 ----
  illustrate the effects and is not a specification; see the C++11 memory
  model for precise semantics.
  
! '__ATOMIC_RELAXED'
       Implies no inter-thread ordering constraints.
! '__ATOMIC_CONSUME'
!      This is currently implemented using the stronger '__ATOMIC_ACQUIRE'
       memory order because of a deficiency in C++11's semantics for
!      'memory_order_consume'.
! '__ATOMIC_ACQUIRE'
       Creates an inter-thread happens-before constraint from the release
       (or stronger) semantic store to this acquire load.  Can prevent
       hoisting of code to before the operation.
! '__ATOMIC_RELEASE'
       Creates an inter-thread happens-before constraint to acquire (or
       stronger) semantic loads that read from this release store.  Can
       prevent sinking of code to after the operation.
! '__ATOMIC_ACQ_REL'
!      Combines the effects of both '__ATOMIC_ACQUIRE' and
!      '__ATOMIC_RELEASE'.
! '__ATOMIC_SEQ_CST'
!      Enforces total ordering with all other '__ATOMIC_SEQ_CST'
       operations.
  
   Note that in the C++11 memory model, _fences_ (e.g.,
! '__atomic_thread_fence') take effect in combination with other atomic
! operations on specific memory locations (e.g., atomic loads); operations
! on specific memory locations do not necessarily affect other operations
! in the same way.
  
   Target architectures are encouraged to provide their own patterns for
  each of the atomic built-in functions.  If no target is provided, the
! original non-memory model set of '__sync' atomic built-in functions are
  used, along with any required synchronization fences surrounding it in
  order to achieve the proper behavior.  Execution in this case is subject
  to the same restrictions as those built-in functions.
*************** to be resolved at run time.
*** 35349,35362 ****
  
   When implementing patterns for these built-in functions, the memory
  order parameter can be ignored as long as the pattern implements the
! most restrictive `__ATOMIC_SEQ_CST' memory order.  Any of the other
  memory orders execute correctly with this memory order but they may not
  execute as efficiently as they could with a more appropriate
  implementation of the relaxed requirements.
  
   Note that the C++11 standard allows for the memory order parameter to
  be determined at run time rather than at compile time.  These built-in
! functions map any run-time value to `__ATOMIC_SEQ_CST' rather than
  invoke a runtime library call or inline a switch statement.  This is
  standard compliant, safe, and the simplest approach for now.
  
--- 35013,35026 ----
  
   When implementing patterns for these built-in functions, the memory
  order parameter can be ignored as long as the pattern implements the
! most restrictive '__ATOMIC_SEQ_CST' memory order.  Any of the other
  memory orders execute correctly with this memory order but they may not
  execute as efficiently as they could with a more appropriate
  implementation of the relaxed requirements.
  
   Note that the C++11 standard allows for the memory order parameter to
  be determined at run time rather than at compile time.  These built-in
! functions map any run-time value to '__ATOMIC_SEQ_CST' rather than
  invoke a runtime library call or inline a switch statement.  This is
  standard compliant, safe, and the simplest approach for now.
  
*************** values ensures proper usage.
*** 35367,35459 ****
  
   -- Built-in Function: TYPE __atomic_load_n (TYPE *ptr, int memorder)
       This built-in function implements an atomic load operation.  It
!      returns the contents of `*PTR'.
! 
!      The valid memory order variants are `__ATOMIC_RELAXED',
!      `__ATOMIC_SEQ_CST', `__ATOMIC_ACQUIRE', and `__ATOMIC_CONSUME'.
  
  
   -- Built-in Function: void __atomic_load (TYPE *ptr, TYPE *ret, int
            memorder)
       This is the generic version of an atomic load.  It returns the
!      contents of `*PTR' in `*RET'.
! 
  
   -- Built-in Function: void __atomic_store_n (TYPE *ptr, TYPE val, int
            memorder)
       This built-in function implements an atomic store operation.  It
!      writes `VAL' into `*PTR'.
! 
!      The valid memory order variants are `__ATOMIC_RELAXED',
!      `__ATOMIC_SEQ_CST', and `__ATOMIC_RELEASE'.
  
  
   -- Built-in Function: void __atomic_store (TYPE *ptr, TYPE *val, int
            memorder)
       This is the generic version of an atomic store.  It stores the
!      value of `*VAL' into `*PTR'.
! 
  
   -- Built-in Function: TYPE __atomic_exchange_n (TYPE *ptr, TYPE val,
            int memorder)
!      This built-in function implements an atomic exchange operation.
!      It writes VAL into `*PTR', and returns the previous contents of
!      `*PTR'.
! 
!      The valid memory order variants are `__ATOMIC_RELAXED',
!      `__ATOMIC_SEQ_CST', `__ATOMIC_ACQUIRE', `__ATOMIC_RELEASE', and
!      `__ATOMIC_ACQ_REL'.
  
  
   -- Built-in Function: void __atomic_exchange (TYPE *ptr, TYPE *val,
            TYPE *ret, int memorder)
       This is the generic version of an atomic exchange.  It stores the
!      contents of `*VAL' into `*PTR'. The original value of `*PTR' is
!      copied into `*RET'.
! 
  
!  -- Built-in Function: bool __atomic_compare_exchange_n (TYPE *ptr,
!           TYPE *expected, TYPE desired, bool weak, int
!           success_memorder, int failure_memorder)
       This built-in function implements an atomic compare and exchange
!      operation.  This compares the contents of `*PTR' with the contents
!      of `*EXPECTED'. If equal, the operation is a _read-modify-write_
!      operation that writes DESIRED into `*PTR'.  If they are not equal,
!      the operation is a _read_ and the current contents of `*PTR' are
!      written into `*EXPECTED'.  WEAK is true for weak compare_exchange,
       which may fail spuriously, and false for the strong variation,
       which never fails spuriously.  Many targets only offer the strong
       variation and ignore the parameter.  When in doubt, use the strong
       variation.
  
!      If DESIRED is written into `*PTR' then true is returned and memory
       is affected according to the memory order specified by
       SUCCESS_MEMORDER.  There are no restrictions on what memory order
       can be used here.
  
       Otherwise, false is returned and memory is affected according to
!      FAILURE_MEMORDER. This memory order cannot be `__ATOMIC_RELEASE'
!      nor `__ATOMIC_ACQ_REL'.  It also cannot be a stronger order than
       that specified by SUCCESS_MEMORDER.
  
- 
   -- Built-in Function: bool __atomic_compare_exchange (TYPE *ptr, TYPE
!           *expected, TYPE *desired, bool weak, int success_memorder,
!           int failure_memorder)
       This built-in function implements the generic version of
!      `__atomic_compare_exchange'.  The function is virtually identical
!      to `__atomic_compare_exchange_n', except the desired value is also
       a pointer.
  
! 
!  -- Built-in Function: TYPE __atomic_add_fetch (TYPE *ptr, TYPE val,
!           int memorder)
!  -- Built-in Function: TYPE __atomic_sub_fetch (TYPE *ptr, TYPE val,
!           int memorder)
!  -- Built-in Function: TYPE __atomic_and_fetch (TYPE *ptr, TYPE val,
!           int memorder)
!  -- Built-in Function: TYPE __atomic_xor_fetch (TYPE *ptr, TYPE val,
!           int memorder)
   -- Built-in Function: TYPE __atomic_or_fetch (TYPE *ptr, TYPE val, int
            memorder)
   -- Built-in Function: TYPE __atomic_nand_fetch (TYPE *ptr, TYPE val,
--- 35031,35115 ----
  
   -- Built-in Function: TYPE __atomic_load_n (TYPE *ptr, int memorder)
       This built-in function implements an atomic load operation.  It
!      returns the contents of '*PTR'.
  
+      The valid memory order variants are '__ATOMIC_RELAXED',
+      '__ATOMIC_SEQ_CST', '__ATOMIC_ACQUIRE', and '__ATOMIC_CONSUME'.
  
   -- Built-in Function: void __atomic_load (TYPE *ptr, TYPE *ret, int
            memorder)
       This is the generic version of an atomic load.  It returns the
!      contents of '*PTR' in '*RET'.
  
   -- Built-in Function: void __atomic_store_n (TYPE *ptr, TYPE val, int
            memorder)
       This built-in function implements an atomic store operation.  It
!      writes 'VAL' into '*PTR'.
  
+      The valid memory order variants are '__ATOMIC_RELAXED',
+      '__ATOMIC_SEQ_CST', and '__ATOMIC_RELEASE'.
  
   -- Built-in Function: void __atomic_store (TYPE *ptr, TYPE *val, int
            memorder)
       This is the generic version of an atomic store.  It stores the
!      value of '*VAL' into '*PTR'.
  
   -- Built-in Function: TYPE __atomic_exchange_n (TYPE *ptr, TYPE val,
            int memorder)
!      This built-in function implements an atomic exchange operation.  It
!      writes VAL into '*PTR', and returns the previous contents of
!      '*PTR'.
  
+      The valid memory order variants are '__ATOMIC_RELAXED',
+      '__ATOMIC_SEQ_CST', '__ATOMIC_ACQUIRE', '__ATOMIC_RELEASE', and
+      '__ATOMIC_ACQ_REL'.
  
   -- Built-in Function: void __atomic_exchange (TYPE *ptr, TYPE *val,
            TYPE *ret, int memorder)
       This is the generic version of an atomic exchange.  It stores the
!      contents of '*VAL' into '*PTR'.  The original value of '*PTR' is
!      copied into '*RET'.
  
!  -- Built-in Function: bool __atomic_compare_exchange_n (TYPE *ptr, TYPE
!           *expected, TYPE desired, bool weak, int success_memorder, int
!           failure_memorder)
       This built-in function implements an atomic compare and exchange
!      operation.  This compares the contents of '*PTR' with the contents
!      of '*EXPECTED'.  If equal, the operation is a _read-modify-write_
!      operation that writes DESIRED into '*PTR'.  If they are not equal,
!      the operation is a _read_ and the current contents of '*PTR' are
!      written into '*EXPECTED'.  WEAK is true for weak compare_exchange,
       which may fail spuriously, and false for the strong variation,
       which never fails spuriously.  Many targets only offer the strong
       variation and ignore the parameter.  When in doubt, use the strong
       variation.
  
!      If DESIRED is written into '*PTR' then true is returned and memory
       is affected according to the memory order specified by
       SUCCESS_MEMORDER.  There are no restrictions on what memory order
       can be used here.
  
       Otherwise, false is returned and memory is affected according to
!      FAILURE_MEMORDER.  This memory order cannot be '__ATOMIC_RELEASE'
!      nor '__ATOMIC_ACQ_REL'.  It also cannot be a stronger order than
       that specified by SUCCESS_MEMORDER.
  
   -- Built-in Function: bool __atomic_compare_exchange (TYPE *ptr, TYPE
!           *expected, TYPE *desired, bool weak, int success_memorder, int
!           failure_memorder)
       This built-in function implements the generic version of
!      '__atomic_compare_exchange'.  The function is virtually identical
!      to '__atomic_compare_exchange_n', except the desired value is also
       a pointer.
  
!  -- Built-in Function: TYPE __atomic_add_fetch (TYPE *ptr, TYPE val, int
!           memorder)
!  -- Built-in Function: TYPE __atomic_sub_fetch (TYPE *ptr, TYPE val, int
!           memorder)
!  -- Built-in Function: TYPE __atomic_and_fetch (TYPE *ptr, TYPE val, int
!           memorder)
!  -- Built-in Function: TYPE __atomic_xor_fetch (TYPE *ptr, TYPE val, int
!           memorder)
   -- Built-in Function: TYPE __atomic_or_fetch (TYPE *ptr, TYPE val, int
            memorder)
   -- Built-in Function: TYPE __atomic_nand_fetch (TYPE *ptr, TYPE val,
*************** values ensures proper usage.
*** 35461,35467 ****
       These built-in functions perform the operation suggested by the
       name, and return the result of the operation.  Operations on
       pointer arguments are performed as if the operands were of the
!      `uintptr_t' type.  That is, they are not scaled by the size of the
       type to which the pointer points.
  
            { *ptr OP= val; return *ptr; }
--- 35117,35123 ----
       These built-in functions perform the operation suggested by the
       name, and return the result of the operation.  Operations on
       pointer arguments are performed as if the operands were of the
!      'uintptr_t' type.  That is, they are not scaled by the size of the
       type to which the pointer points.
  
            { *ptr OP= val; return *ptr; }
*************** values ensures proper usage.
*** 35470,35540 ****
       pointer type.  It must not be a Boolean type.  All memory orders
       are valid.
  
! 
!  -- Built-in Function: TYPE __atomic_fetch_add (TYPE *ptr, TYPE val,
!           int memorder)
!  -- Built-in Function: TYPE __atomic_fetch_sub (TYPE *ptr, TYPE val,
!           int memorder)
!  -- Built-in Function: TYPE __atomic_fetch_and (TYPE *ptr, TYPE val,
!           int memorder)
!  -- Built-in Function: TYPE __atomic_fetch_xor (TYPE *ptr, TYPE val,
!           int memorder)
   -- Built-in Function: TYPE __atomic_fetch_or (TYPE *ptr, TYPE val, int
            memorder)
   -- Built-in Function: TYPE __atomic_fetch_nand (TYPE *ptr, TYPE val,
            int memorder)
       These built-in functions perform the operation suggested by the
!      name, and return the value that had previously been in `*PTR'.
       Operations on pointer arguments are performed as if the operands
!      were of the `uintptr_t' type.  That is, they are not scaled by the
       size of the type to which the pointer points.
  
            { tmp = *ptr; *ptr OP= val; return tmp; }
  
       The same constraints on arguments apply as for the corresponding
!      `__atomic_op_fetch' built-in functions.  All memory orders are
       valid.
  
- 
   -- Built-in Function: bool __atomic_test_and_set (void *ptr, int
            memorder)
       This built-in function performs an atomic test-and-set operation on
!      the byte at `*PTR'.  The byte is set to some implementation
!      defined nonzero "set" value and the return value is `true' if and
!      only if the previous contents were "set".  It should be only used
!      for operands of type `bool' or `char'. For other types only part
!      of the value may be set.
  
       All memory orders are valid.
  
- 
   -- Built-in Function: void __atomic_clear (bool *ptr, int memorder)
-      This built-in function performs an atomic clear operation on
-      `*PTR'.  After the operation, `*PTR' contains 0.  It should be
-      only used for operands of type `bool' or `char' and in conjunction
-      with `__atomic_test_and_set'.  For other types it may only clear
-      partially. If the type is not `bool' prefer using `__atomic_store'.
  
!      The valid memory order variants are `__ATOMIC_RELAXED',
!      `__ATOMIC_SEQ_CST', and `__ATOMIC_RELEASE'.
  
  
   -- Built-in Function: void __atomic_thread_fence (int memorder)
       This built-in function acts as a synchronization fence between
       threads based on the specified memory order.
  
       All memory orders are valid.
  
- 
   -- Built-in Function: void __atomic_signal_fence (int memorder)
       This built-in function acts as a synchronization fence between a
       thread and signal handlers based in the same thread.
  
       All memory orders are valid.
  
  
-  -- Built-in Function: bool __atomic_always_lock_free (size_t size,
-           void *ptr)
       This built-in function returns true if objects of SIZE bytes always
       generate lock-free atomic instructions for the target architecture.
       SIZE must resolve to a compile-time constant and the result also
--- 35126,35196 ----
       pointer type.  It must not be a Boolean type.  All memory orders
       are valid.
  
!  -- Built-in Function: TYPE __atomic_fetch_add (TYPE *ptr, TYPE val, int
!           memorder)
!  -- Built-in Function: TYPE __atomic_fetch_sub (TYPE *ptr, TYPE val, int
!           memorder)
!  -- Built-in Function: TYPE __atomic_fetch_and (TYPE *ptr, TYPE val, int
!           memorder)
!  -- Built-in Function: TYPE __atomic_fetch_xor (TYPE *ptr, TYPE val, int
!           memorder)
   -- Built-in Function: TYPE __atomic_fetch_or (TYPE *ptr, TYPE val, int
            memorder)
   -- Built-in Function: TYPE __atomic_fetch_nand (TYPE *ptr, TYPE val,
            int memorder)
       These built-in functions perform the operation suggested by the
!      name, and return the value that had previously been in '*PTR'.
       Operations on pointer arguments are performed as if the operands
!      were of the 'uintptr_t' type.  That is, they are not scaled by the
       size of the type to which the pointer points.
  
            { tmp = *ptr; *ptr OP= val; return tmp; }
  
       The same constraints on arguments apply as for the corresponding
!      '__atomic_op_fetch' built-in functions.  All memory orders are
       valid.
  
   -- Built-in Function: bool __atomic_test_and_set (void *ptr, int
            memorder)
+ 
       This built-in function performs an atomic test-and-set operation on
!      the byte at '*PTR'.  The byte is set to some implementation defined
!      nonzero "set" value and the return value is 'true' if and only if
!      the previous contents were "set".  It should be only used for
!      operands of type 'bool' or 'char'.  For other types only part of
!      the value may be set.
  
       All memory orders are valid.
  
   -- Built-in Function: void __atomic_clear (bool *ptr, int memorder)
  
!      This built-in function performs an atomic clear operation on
!      '*PTR'.  After the operation, '*PTR' contains 0.  It should be only
!      used for operands of type 'bool' or 'char' and in conjunction with
!      '__atomic_test_and_set'.  For other types it may only clear
!      partially.  If the type is not 'bool' prefer using
!      '__atomic_store'.
  
+      The valid memory order variants are '__ATOMIC_RELAXED',
+      '__ATOMIC_SEQ_CST', and '__ATOMIC_RELEASE'.
  
   -- Built-in Function: void __atomic_thread_fence (int memorder)
+ 
       This built-in function acts as a synchronization fence between
       threads based on the specified memory order.
  
       All memory orders are valid.
  
   -- Built-in Function: void __atomic_signal_fence (int memorder)
+ 
       This built-in function acts as a synchronization fence between a
       thread and signal handlers based in the same thread.
  
       All memory orders are valid.
  
+  -- Built-in Function: bool __atomic_always_lock_free (size_t size, void
+           *ptr)
  
       This built-in function returns true if objects of SIZE bytes always
       generate lock-free atomic instructions for the target architecture.
       SIZE must resolve to a compile-time constant and the result also
*************** values ensures proper usage.
*** 35546,35559 ****
  
            if (__atomic_always_lock_free (sizeof (long long), 0))
  
- 
   -- Built-in Function: bool __atomic_is_lock_free (size_t size, void
            *ptr)
       This built-in function returns true if objects of SIZE bytes always
!      generate lock-free atomic instructions for the target
!      architecture.  If the built-in function is not known to be
!      lock-free, a call is made to a runtime routine named
!      `__atomic_is_lock_free'.
  
       PTR is an optional pointer to the object that may be used to
       determine alignment.  A value of 0 indicates typical alignment
--- 35202,35214 ----
  
            if (__atomic_always_lock_free (sizeof (long long), 0))
  
   -- Built-in Function: bool __atomic_is_lock_free (size_t size, void
            *ptr)
+ 
       This built-in function returns true if objects of SIZE bytes always
!      generate lock-free atomic instructions for the target architecture.
!      If the built-in function is not known to be lock-free, a call is
!      made to a runtime routine named '__atomic_is_lock_free'.
  
       PTR is an optional pointer to the object that may be used to
       determine alignment.  A value of 0 indicates typical alignment
*************** operations together with checking whethe
*** 35583,35588 ****
--- 35238,35244 ----
   -- Built-in Function: bool __builtin_uaddll_overflow (unsigned long
            long int a, unsigned long long int b, unsigned long long int
            *res)
+ 
       These built-in functions promote the first two operands into
       infinite precision signed type and perform addition on those
       promoted operands.  The result is then cast to the type the third
*************** operations together with checking whethe
*** 35600,35606 ****
       these built-in functions where possible, like conditional jump on
       overflow after addition, conditional jump on carry etc.
  
- 
   -- Built-in Function: bool __builtin_sub_overflow (TYPE1 a, TYPE2 b,
            TYPE3 *res)
   -- Built-in Function: bool __builtin_ssub_overflow (int a, int b, int
--- 35256,35261 ----
*************** operations together with checking whethe
*** 35616,35626 ****
   -- Built-in Function: bool __builtin_usubll_overflow (unsigned long
            long int a, unsigned long long int b, unsigned long long int
            *res)
-      These built-in functions are similar to the add overflow checking
-      built-in functions above, except they perform subtraction,
-      subtract the second argument from the first one, instead of
-      addition.
  
  
   -- Built-in Function: bool __builtin_mul_overflow (TYPE1 a, TYPE2 b,
            TYPE3 *res)
--- 35271,35280 ----
   -- Built-in Function: bool __builtin_usubll_overflow (unsigned long
            long int a, unsigned long long int b, unsigned long long int
            *res)
  
+      These built-in functions are similar to the add overflow checking
+      built-in functions above, except they perform subtraction, subtract
+      the second argument from the first one, instead of addition.
  
   -- Built-in Function: bool __builtin_mul_overflow (TYPE1 a, TYPE2 b,
            TYPE3 *res)
*************** operations together with checking whethe
*** 35637,35647 ****
   -- Built-in Function: bool __builtin_umulll_overflow (unsigned long
            long int a, unsigned long long int b, unsigned long long int
            *res)
       These built-in functions are similar to the add overflow checking
       built-in functions above, except they perform multiplication,
       instead of addition.
  
- 
  
  File: gcc.info,  Node: x86 specific memory model extensions for transactional memory,  Next: Object Size Checking,  Prev: Integer Overflow Builtins,  Up: C Extensions
  
--- 35291,35301 ----
   -- Built-in Function: bool __builtin_umulll_overflow (unsigned long
            long int a, unsigned long long int b, unsigned long long int
            *res)
+ 
       These built-in functions are similar to the add overflow checking
       built-in functions above, except they perform multiplication,
       instead of addition.
  
  
  File: gcc.info,  Node: x86 specific memory model extensions for transactional memory,  Next: Object Size Checking,  Prev: Integer Overflow Builtins,  Up: C Extensions
  
*************** The x86 architecture supports additional
*** 35652,35667 ****
  lock critical sections for hardware lock elision.  These must be
  specified in addition to an existing memory order to atomic intrinsics.
  
! `__ATOMIC_HLE_ACQUIRE'
       Start lock elision on a lock variable.  Memory order must be
!      `__ATOMIC_ACQUIRE' or stronger.
! 
! `__ATOMIC_HLE_RELEASE'
       End lock elision on a lock variable.  Memory order must be
!      `__ATOMIC_RELEASE' or stronger.
  
   When a lock acquire fails, it is required for good performance to abort
! the transaction quickly. This can be done with a `_mm_pause'.
  
       #include <immintrin.h> // For _mm_pause
  
--- 35306,35320 ----
  lock critical sections for hardware lock elision.  These must be
  specified in addition to an existing memory order to atomic intrinsics.
  
! '__ATOMIC_HLE_ACQUIRE'
       Start lock elision on a lock variable.  Memory order must be
!      '__ATOMIC_ACQUIRE' or stronger.
! '__ATOMIC_HLE_RELEASE'
       End lock elision on a lock variable.  Memory order must be
!      '__ATOMIC_RELEASE' or stronger.
  
   When a lock acquire fails, it is required for good performance to abort
! the transaction quickly.  This can be done with a '_mm_pause'.
  
       #include <immintrin.h> // For _mm_pause
  
*************** prevent some buffer overflow attacks.
*** 35687,35702 ****
            TYPE)
       is a built-in construct that returns a constant number of bytes
       from PTR to the end of the object PTR pointer points to (if known
!      at compile time).  `__builtin_object_size' never evaluates its
!      arguments for side-effects.  If there are any side-effects in
!      them, it returns `(size_t) -1' for TYPE 0 or 1 and `(size_t) 0'
!      for TYPE 2 or 3.  If there are multiple objects PTR can point to
!      and all of them are known at compile time, the returned number is
!      the maximum of remaining byte counts in those objects if TYPE & 2
!      is 0 and minimum if nonzero.  If it is not possible to determine
!      which objects PTR points to at compile time,
!      `__builtin_object_size' should return `(size_t) -1' for TYPE 0 or
!      1 and `(size_t) 0' for TYPE 2 or 3.
  
       TYPE is an integer constant from 0 to 3.  If the least significant
       bit is clear, objects are whole variables, if it is set, a closest
--- 35340,35355 ----
            TYPE)
       is a built-in construct that returns a constant number of bytes
       from PTR to the end of the object PTR pointer points to (if known
!      at compile time).  '__builtin_object_size' never evaluates its
!      arguments for side-effects.  If there are any side-effects in them,
!      it returns '(size_t) -1' for TYPE 0 or 1 and '(size_t) 0' for TYPE
!      2 or 3.  If there are multiple objects PTR can point to and all of
!      them are known at compile time, the returned number is the maximum
!      of remaining byte counts in those objects if TYPE & 2 is 0 and
!      minimum if nonzero.  If it is not possible to determine which
!      objects PTR points to at compile time, '__builtin_object_size'
!      should return '(size_t) -1' for TYPE 0 or 1 and '(size_t) 0' for
!      TYPE 2 or 3.
  
       TYPE is an integer constant from 0 to 3.  If the least significant
       bit is clear, objects are whole variables, if it is set, a closest
*************** prevent some buffer overflow attacks.
*** 35718,35732 ****
            assert (__builtin_object_size (q, 1) == sizeof (var.b));
  
   There are built-in functions added for many common string operation
! functions, e.g., for `memcpy' `__builtin___memcpy_chk' built-in is
  provided.  This built-in has an additional last argument, which is the
  number of bytes remaining in object the DEST argument points to or
! `(size_t) -1' if the size is not known.
  
   The built-in functions are optimized into the normal string functions
! like `memcpy' if the last argument is `(size_t) -1' or if it is known
! at compile time that the destination object will not be overflown.  If
! the compiler can determine at compile time the object will be always
  overflown, it issues a warning.
  
   The intended use can be e.g.
--- 35371,35385 ----
            assert (__builtin_object_size (q, 1) == sizeof (var.b));
  
   There are built-in functions added for many common string operation
! functions, e.g., for 'memcpy' '__builtin___memcpy_chk' built-in is
  provided.  This built-in has an additional last argument, which is the
  number of bytes remaining in object the DEST argument points to or
! '(size_t) -1' if the size is not known.
  
   The built-in functions are optimized into the normal string functions
! like 'memcpy' if the last argument is '(size_t) -1' or if it is known at
! compile time that the destination object will not be overflown.  If the
! compiler can determine at compile time the object will be always
  overflown, it issues a warning.
  
   The intended use can be e.g.
*************** overflown, it issues a warning.
*** 35753,35761 ****
          will abort the program at run time.  */
       memcpy (&buf[6], "abcde", 5);
  
!  Such built-in functions are provided for `memcpy', `mempcpy',
! `memmove', `memset', `strcpy', `stpcpy', `strncpy', `strcat' and
! `strncat'.
  
   There are also checking built-in functions for formatted output
  functions.
--- 35406,35414 ----
          will abort the program at run time.  */
       memcpy (&buf[6], "abcde", 5);
  
!  Such built-in functions are provided for 'memcpy', 'mempcpy',
! 'memmove', 'memset', 'strcpy', 'stpcpy', 'strncpy', 'strcat' and
! 'strncat'.
  
   There are also checking built-in functions for formatted output
  functions.
*************** functions.
*** 35767,35788 ****
       int __builtin___vsnprintf_chk (char *s, size_t maxlen, int flag, size_t os,
                                      const char *fmt, va_list ap);
  
!  The added FLAG argument is passed unchanged to `__sprintf_chk' etc.
  functions and can contain implementation specific flags on what
  additional security measures the checking function might take, such as
! handling `%n' differently.
  
   The OS argument is the object size S points to, like in the other
! built-in functions.  There is a small difference in the behavior
! though, if OS is `(size_t) -1', the built-in functions are optimized
! into the non-checking functions only if FLAG is 0, otherwise the
! checking function is called with OS argument set to `(size_t) -1'.
  
   In addition to this, there are checking built-in functions
! `__builtin___printf_chk', `__builtin___vprintf_chk',
! `__builtin___fprintf_chk' and `__builtin___vfprintf_chk'.  These have
  just one additional argument, FLAG, right before format string FMT.  If
! the compiler is able to optimize them to `fputc' etc. functions, it
  does, otherwise the checking function is called and the FLAG argument
  passed to it.
  
--- 35420,35441 ----
       int __builtin___vsnprintf_chk (char *s, size_t maxlen, int flag, size_t os,
                                      const char *fmt, va_list ap);
  
!  The added FLAG argument is passed unchanged to '__sprintf_chk' etc.
  functions and can contain implementation specific flags on what
  additional security measures the checking function might take, such as
! handling '%n' differently.
  
   The OS argument is the object size S points to, like in the other
! built-in functions.  There is a small difference in the behavior though,
! if OS is '(size_t) -1', the built-in functions are optimized into the
! non-checking functions only if FLAG is 0, otherwise the checking
! function is called with OS argument set to '(size_t) -1'.
  
   In addition to this, there are checking built-in functions
! '__builtin___printf_chk', '__builtin___vprintf_chk',
! '__builtin___fprintf_chk' and '__builtin___vfprintf_chk'.  These have
  just one additional argument, FLAG, right before format string FMT.  If
! the compiler is able to optimize them to 'fputc' etc. functions, it
  does, otherwise the checking function is called and the FLAG argument
  passed to it.
  
*************** File: gcc.info,  Node: Pointer Bounds Ch
*** 35795,35805 ****
  GCC provides a set of built-in functions to control Pointer Bounds
  Checker instrumentation.  Note that all Pointer Bounds Checker builtins
  can be used even if you compile with Pointer Bounds Checker off
! (`-fno-check-pointer-bounds').  The behavior may differ in such case as
  documented below.
  
!  -- Built-in Function: void * __builtin___bnd_set_ptr_bounds (const
!           void *Q, size_t SIZE)
       This built-in function returns a new pointer with the value of Q,
       and associate it with the bounds [Q, Q+SIZE-1].  With Pointer
       Bounds Checker off, the built-in function just returns the first
--- 35448,35459 ----
  GCC provides a set of built-in functions to control Pointer Bounds
  Checker instrumentation.  Note that all Pointer Bounds Checker builtins
  can be used even if you compile with Pointer Bounds Checker off
! ('-fno-check-pointer-bounds').  The behavior may differ in such case as
  documented below.
  
!  -- Built-in Function: void * __builtin___bnd_set_ptr_bounds (const void
!           *Q, size_t SIZE)
! 
       This built-in function returns a new pointer with the value of Q,
       and associate it with the bounds [Q, Q+SIZE-1].  With Pointer
       Bounds Checker off, the built-in function just returns the first
*************** documented below.
*** 35812,35820 ****
              return __builtin___bnd_set_ptr_bounds (p, n);
            }
  
- 
   -- Built-in Function: void * __builtin___bnd_narrow_ptr_bounds (const
            void *P, const void *Q, size_t SIZE)
       This built-in function returns a new pointer with the value of P
       and associates it with the narrowed bounds formed by the
       intersection of bounds associated with Q and the bounds [P, P +
--- 35466,35474 ----
              return __builtin___bnd_set_ptr_bounds (p, n);
            }
  
   -- Built-in Function: void * __builtin___bnd_narrow_ptr_bounds (const
            void *P, const void *Q, size_t SIZE)
+ 
       This built-in function returns a new pointer with the value of P
       and associates it with the narrowed bounds formed by the
       intersection of bounds associated with Q and the bounds [P, P +
*************** documented below.
*** 35831,35839 ****
                                                                sizeof(object)));
            }
  
- 
   -- Built-in Function: void * __builtin___bnd_copy_ptr_bounds (const
            void *Q, const void *R)
       This built-in function returns a new pointer with the value of Q,
       and associates it with the bounds already associated with pointer
       R.  With Pointer Bounds Checker off, the built-in function just
--- 35485,35493 ----
                                                                sizeof(object)));
            }
  
   -- Built-in Function: void * __builtin___bnd_copy_ptr_bounds (const
            void *Q, const void *R)
+ 
       This built-in function returns a new pointer with the value of Q,
       and associates it with the bounds already associated with pointer
       R.  With Pointer Bounds Checker off, the built-in function just
*************** documented below.
*** 35844,35868 ****
            int *field_ptr = __builtin___bnd_copy_ptr_bounds (&objptr->int_field,
                                                              objptr);
  
- 
   -- Built-in Function: void * __builtin___bnd_init_ptr_bounds (const
            void *Q)
       This built-in function returns a new pointer with the value of Q,
       and associates it with INIT (allowing full memory access) bounds.
!      With Pointer Bounds Checker off, the built-in function just
!      returns the first argument.
! 
  
   -- Built-in Function: void * __builtin___bnd_null_ptr_bounds (const
            void *Q)
       This built-in function returns a new pointer with the value of Q,
       and associates it with NULL (allowing no memory access) bounds.
!      With Pointer Bounds Checker off, the built-in function just
!      returns the first argument.
  
  
-  -- Built-in Function: void __builtin___bnd_store_ptr_bounds (const
-           void **PTR_ADDR, const void *PTR_VAL)
       This built-in function stores the bounds associated with pointer
       PTR_VAL and location PTR_ADDR into Bounds Table.  This can be
       useful to propagate bounds from legacy code without touching the
--- 35498,35522 ----
            int *field_ptr = __builtin___bnd_copy_ptr_bounds (&objptr->int_field,
                                                              objptr);
  
   -- Built-in Function: void * __builtin___bnd_init_ptr_bounds (const
            void *Q)
+ 
       This built-in function returns a new pointer with the value of Q,
       and associates it with INIT (allowing full memory access) bounds.
!      With Pointer Bounds Checker off, the built-in function just returns
!      the first argument.
  
   -- Built-in Function: void * __builtin___bnd_null_ptr_bounds (const
            void *Q)
+ 
       This built-in function returns a new pointer with the value of Q,
       and associates it with NULL (allowing no memory access) bounds.
!      With Pointer Bounds Checker off, the built-in function just returns
!      the first argument.
  
+  -- Built-in Function: void __builtin___bnd_store_ptr_bounds (const void
+           **PTR_ADDR, const void *PTR_VAL)
  
       This built-in function stores the bounds associated with pointer
       PTR_VAL and location PTR_ADDR into Bounds Table.  This can be
       useful to propagate bounds from legacy code without touching the
*************** documented below.
*** 35870,35878 ****
       With Pointer Bounds Checker off, the built-in function call is
       ignored.
  
- 
   -- Built-in Function: void __builtin___bnd_chk_ptr_lbounds (const void
            *Q)
       This built-in function checks if the pointer Q is within the lower
       bound of its associated bounds.  With Pointer Bounds Checker off,
       the built-in function call is ignored.
--- 35524,35532 ----
       With Pointer Bounds Checker off, the built-in function call is
       ignored.
  
   -- Built-in Function: void __builtin___bnd_chk_ptr_lbounds (const void
            *Q)
+ 
       This built-in function checks if the pointer Q is within the lower
       bound of its associated bounds.  With Pointer Bounds Checker off,
       the built-in function call is ignored.
*************** documented below.
*** 35888,35903 ****
              return dst;
            }
  
- 
   -- Built-in Function: void __builtin___bnd_chk_ptr_ubounds (const void
            *Q)
       This built-in function checks if the pointer Q is within the upper
       bound of its associated bounds.  With Pointer Bounds Checker off,
       the built-in function call is ignored.
  
- 
   -- Built-in Function: void __builtin___bnd_chk_ptr_bounds (const void
            *Q, size_t SIZE)
       This built-in function checks if [Q, Q + SIZE - 1] is within the
       lower and upper bounds associated with Q.  With Pointer Bounds
       Checker off, the built-in function call is ignored.
--- 35542,35557 ----
              return dst;
            }
  
   -- Built-in Function: void __builtin___bnd_chk_ptr_ubounds (const void
            *Q)
+ 
       This built-in function checks if the pointer Q is within the upper
       bound of its associated bounds.  With Pointer Bounds Checker off,
       the built-in function call is ignored.
  
   -- Built-in Function: void __builtin___bnd_chk_ptr_bounds (const void
            *Q, size_t SIZE)
+ 
       This built-in function checks if [Q, Q + SIZE - 1] is within the
       lower and upper bounds associated with Q.  With Pointer Bounds
       Checker off, the built-in function call is ignored.
*************** documented below.
*** 35913,35937 ****
              return dst;
            }
  
- 
   -- Built-in Function: const void * __builtin___bnd_get_ptr_lbound
            (const void *Q)
       This built-in function returns the lower bound associated with the
       pointer Q, as a pointer value.  This is useful for debugging using
!      `printf'.  With Pointer Bounds Checker off, the built-in function
       returns 0.
  
            void *lb = __builtin___bnd_get_ptr_lbound (q);
            void *ub = __builtin___bnd_get_ptr_ubound (q);
            printf ("q = %p  lb(q) = %p  ub(q) = %p", q, lb, ub);
  
- 
   -- Built-in Function: const void * __builtin___bnd_get_ptr_ubound
            (const void *Q)
-      This built-in function returns the upper bound (which is a
-      pointer) associated with the pointer Q.  With Pointer Bounds
-      Checker off, the built-in function returns -1.
  
  
  
  File: gcc.info,  Node: Cilk Plus Builtins,  Next: Other Builtins,  Prev: Pointer Bounds Checker builtins,  Up: C Extensions
--- 35567,35590 ----
              return dst;
            }
  
   -- Built-in Function: const void * __builtin___bnd_get_ptr_lbound
            (const void *Q)
+ 
       This built-in function returns the lower bound associated with the
       pointer Q, as a pointer value.  This is useful for debugging using
!      'printf'.  With Pointer Bounds Checker off, the built-in function
       returns 0.
  
            void *lb = __builtin___bnd_get_ptr_lbound (q);
            void *ub = __builtin___bnd_get_ptr_ubound (q);
            printf ("q = %p  lb(q) = %p  ub(q) = %p", q, lb, ub);
  
   -- Built-in Function: const void * __builtin___bnd_get_ptr_ubound
            (const void *Q)
  
+      This built-in function returns the upper bound (which is a pointer)
+      associated with the pointer Q.  With Pointer Bounds Checker off,
+      the built-in function returns -1.
  
  
  File: gcc.info,  Node: Cilk Plus Builtins,  Next: Other Builtins,  Prev: Pointer Bounds Checker builtins,  Up: C Extensions
*************** File: gcc.info,  Node: Cilk Plus Builtin
*** 35940,35977 ****
  ==========================================================
  
  GCC provides support for the following built-in reduction functions if
! Cilk Plus is enabled. Cilk Plus can be enabled using the `-fcilkplus'
  flag.
  
!    * `__sec_implicit_index'
! 
!    * `__sec_reduce'
! 
!    * `__sec_reduce_add'
! 
!    * `__sec_reduce_all_nonzero'
! 
!    * `__sec_reduce_all_zero'
! 
!    * `__sec_reduce_any_nonzero'
! 
!    * `__sec_reduce_any_zero'
! 
!    * `__sec_reduce_max'
! 
!    * `__sec_reduce_min'
! 
!    * `__sec_reduce_max_ind'
! 
!    * `__sec_reduce_min_ind'
! 
!    * `__sec_reduce_mul'
! 
!    * `__sec_reduce_mutating'
  
   Further details and examples about these built-in functions are
  described in the Cilk Plus language manual which can be found at
! `https://www.cilkplus.org'.
  
  
  File: gcc.info,  Node: Other Builtins,  Next: Target Builtins,  Prev: Cilk Plus Builtins,  Up: C Extensions
--- 35593,35618 ----
  ==========================================================
  
  GCC provides support for the following built-in reduction functions if
! Cilk Plus is enabled.  Cilk Plus can be enabled using the '-fcilkplus'
  flag.
  
!    * '__sec_implicit_index'
!    * '__sec_reduce'
!    * '__sec_reduce_add'
!    * '__sec_reduce_all_nonzero'
!    * '__sec_reduce_all_zero'
!    * '__sec_reduce_any_nonzero'
!    * '__sec_reduce_any_zero'
!    * '__sec_reduce_max'
!    * '__sec_reduce_min'
!    * '__sec_reduce_max_ind'
!    * '__sec_reduce_min_ind'
!    * '__sec_reduce_mul'
!    * '__sec_reduce_mutating'
  
   Further details and examples about these built-in functions are
  described in the Cilk Plus language manual which can be found at
! <https://www.cilkplus.org>.
  
  
  File: gcc.info,  Node: Other Builtins,  Next: Target Builtins,  Prev: Cilk Plus Builtins,  Up: C Extensions
*************** general use of these functions.
*** 35991,36116 ****
  the standard C library functions discussed below, or that expand to
  library calls, GCC built-in functions are always expanded inline and
  thus do not have corresponding entry points and their address cannot be
! obtained.  Attempting to use them in an expression other than a
! function call results in a compile-time error.
  
   GCC includes built-in versions of many of the functions in the standard
  C library.  These functions come in two forms: one whose names start
! with the `__builtin_' prefix, and the other without.  Both forms have
  the same type (including prototype), the same address (when their
  address is taken), and the same meaning as the C library functions even
! if you specify the `-fno-builtin' option *note C Dialect Options::).
! Many of these functions are only optimized in certain cases; if they
! are not optimized in a particular case, a call to the library function
! is emitted.
  
!  Outside strict ISO C mode (`-ansi', `-std=c90', `-std=c99' or
! `-std=c11'), the functions `_exit', `alloca', `bcmp', `bzero',
! `dcgettext', `dgettext', `dremf', `dreml', `drem', `exp10f', `exp10l',
! `exp10', `ffsll', `ffsl', `ffs', `fprintf_unlocked', `fputs_unlocked',
! `gammaf', `gammal', `gamma', `gammaf_r', `gammal_r', `gamma_r',
! `gettext', `index', `isascii', `j0f', `j0l', `j0', `j1f', `j1l', `j1',
! `jnf', `jnl', `jn', `lgammaf_r', `lgammal_r', `lgamma_r', `mempcpy',
! `pow10f', `pow10l', `pow10', `printf_unlocked', `rindex', `scalbf',
! `scalbl', `scalb', `signbit', `signbitf', `signbitl', `signbitd32',
! `signbitd64', `signbitd128', `significandf', `significandl',
! `significand', `sincosf', `sincosl', `sincos', `stpcpy', `stpncpy',
! `strcasecmp', `strdup', `strfmon', `strncasecmp', `strndup', `toascii',
! `y0f', `y0l', `y0', `y1f', `y1l', `y1', `ynf', `ynl' and `yn' may be
  handled as built-in functions.  All these functions have corresponding
! versions prefixed with `__builtin_', which may be used even in strict
  C90 mode.
  
!  The ISO C99 functions `_Exit', `acoshf', `acoshl', `acosh', `asinhf',
! `asinhl', `asinh', `atanhf', `atanhl', `atanh', `cabsf', `cabsl',
! `cabs', `cacosf', `cacoshf', `cacoshl', `cacosh', `cacosl', `cacos',
! `cargf', `cargl', `carg', `casinf', `casinhf', `casinhl', `casinh',
! `casinl', `casin', `catanf', `catanhf', `catanhl', `catanh', `catanl',
! `catan', `cbrtf', `cbrtl', `cbrt', `ccosf', `ccoshf', `ccoshl',
! `ccosh', `ccosl', `ccos', `cexpf', `cexpl', `cexp', `cimagf', `cimagl',
! `cimag', `clogf', `clogl', `clog', `conjf', `conjl', `conj',
! `copysignf', `copysignl', `copysign', `cpowf', `cpowl', `cpow',
! `cprojf', `cprojl', `cproj', `crealf', `creall', `creal', `csinf',
! `csinhf', `csinhl', `csinh', `csinl', `csin', `csqrtf', `csqrtl',
! `csqrt', `ctanf', `ctanhf', `ctanhl', `ctanh', `ctanl', `ctan',
! `erfcf', `erfcl', `erfc', `erff', `erfl', `erf', `exp2f', `exp2l',
! `exp2', `expm1f', `expm1l', `expm1', `fdimf', `fdiml', `fdim', `fmaf',
! `fmal', `fmaxf', `fmaxl', `fmax', `fma', `fminf', `fminl', `fmin',
! `hypotf', `hypotl', `hypot', `ilogbf', `ilogbl', `ilogb', `imaxabs',
! `isblank', `iswblank', `lgammaf', `lgammal', `lgamma', `llabs',
! `llrintf', `llrintl', `llrint', `llroundf', `llroundl', `llround',
! `log1pf', `log1pl', `log1p', `log2f', `log2l', `log2', `logbf',
! `logbl', `logb', `lrintf', `lrintl', `lrint', `lroundf', `lroundl',
! `lround', `nearbyintf', `nearbyintl', `nearbyint', `nextafterf',
! `nextafterl', `nextafter', `nexttowardf', `nexttowardl', `nexttoward',
! `remainderf', `remainderl', `remainder', `remquof', `remquol',
! `remquo', `rintf', `rintl', `rint', `roundf', `roundl', `round',
! `scalblnf', `scalblnl', `scalbln', `scalbnf', `scalbnl', `scalbn',
! `snprintf', `tgammaf', `tgammal', `tgamma', `truncf', `truncl', `trunc',
! `vfscanf', `vscanf', `vsnprintf' and `vsscanf' are handled as built-in
! functions except in strict ISO C90 mode (`-ansi' or `-std=c90').
  
!  There are also built-in versions of the ISO C99 functions `acosf',
! `acosl', `asinf', `asinl', `atan2f', `atan2l', `atanf', `atanl',
! `ceilf', `ceill', `cosf', `coshf', `coshl', `cosl', `expf', `expl',
! `fabsf', `fabsl', `floorf', `floorl', `fmodf', `fmodl', `frexpf',
! `frexpl', `ldexpf', `ldexpl', `log10f', `log10l', `logf', `logl',
! `modfl', `modf', `powf', `powl', `sinf', `sinhf', `sinhl', `sinl',
! `sqrtf', `sqrtl', `tanf', `tanhf', `tanhl' and `tanl' that are
  recognized in any mode since ISO C90 reserves these names for the
  purpose to which ISO C99 puts them.  All these functions have
! corresponding versions prefixed with `__builtin_'.
  
!  There are also GNU extension functions `clog10', `clog10f' and
! `clog10l' which names are reserved by ISO C99 for future use.  All
! these functions have versions prefixed with `__builtin_'.
  
!  The ISO C94 functions `iswalnum', `iswalpha', `iswcntrl', `iswdigit',
! `iswgraph', `iswlower', `iswprint', `iswpunct', `iswspace', `iswupper',
! `iswxdigit', `towlower' and `towupper' are handled as built-in functions
! except in strict ISO C90 mode (`-ansi' or `-std=c90').
  
!  The ISO C90 functions `abort', `abs', `acos', `asin', `atan2', `atan',
! `calloc', `ceil', `cosh', `cos', `exit', `exp', `fabs', `floor', `fmod',
! `fprintf', `fputs', `frexp', `fscanf', `isalnum', `isalpha', `iscntrl',
! `isdigit', `isgraph', `islower', `isprint', `ispunct', `isspace',
! `isupper', `isxdigit', `tolower', `toupper', `labs', `ldexp', `log10',
! `log', `malloc', `memchr', `memcmp', `memcpy', `memset', `modf', `pow',
! `printf', `putchar', `puts', `scanf', `sinh', `sin', `snprintf',
! `sprintf', `sqrt', `sscanf', `strcat', `strchr', `strcmp', `strcpy',
! `strcspn', `strlen', `strncat', `strncmp', `strncpy', `strpbrk',
! `strrchr', `strspn', `strstr', `tanh', `tan', `vfprintf', `vprintf' and
! `vsprintf' are all recognized as built-in functions unless
! `-fno-builtin' is specified (or `-fno-builtin-FUNCTION' is specified
! for an individual function).  All of these functions have corresponding
! versions prefixed with `__builtin_'.
  
   GCC provides built-in versions of the ISO C99 floating-point comparison
  macros that avoid raising exceptions for unordered operands.  They have
! the same names as the standard macros ( `isgreater', `isgreaterequal',
! `isless', `islessequal', `islessgreater', and `isunordered') , with
! `__builtin_' prefixed.  We intend for a library implementor to be able
! to simply `#define' each standard macro to its built-in equivalent.  In
! the same fashion, GCC provides `fpclassify', `isfinite', `isinf_sign',
! `isnormal' and `signbit' built-ins used with `__builtin_' prefixed.
! The `isinf' and `isnan' built-in functions appear both with and without
! the `__builtin_' prefix.
  
   -- Built-in Function: void *__builtin_alloca (size_t size)
!      The `__builtin_alloca' function must be called at block scope.
!      The function allocates an object SIZE bytes large on the stack of
!      the calling function.  The object is aligned on the default stack
       alignment boundary for the target determined by the
!      `__BIGGEST_ALIGNMENT__' macro.  The `__builtin_alloca' function
       returns a pointer to the first byte of the allocated object.  The
       lifetime of the allocated object ends just before the calling
!      function returns to its caller.   This is so even when
!      `__builtin_alloca' is called within a nested block.
  
!      For example, the following function allocates eight objects of `n'
       bytes each on the stack, storing a pointer to each in consecutive
!      elements of the array `a'.  It then passes the array to function
!      `g' which can safely use the storage pointed to by each of the
       array elements.
  
            void f (unsigned n)
--- 35632,35757 ----
  the standard C library functions discussed below, or that expand to
  library calls, GCC built-in functions are always expanded inline and
  thus do not have corresponding entry points and their address cannot be
! obtained.  Attempting to use them in an expression other than a function
! call results in a compile-time error.
  
   GCC includes built-in versions of many of the functions in the standard
  C library.  These functions come in two forms: one whose names start
! with the '__builtin_' prefix, and the other without.  Both forms have
  the same type (including prototype), the same address (when their
  address is taken), and the same meaning as the C library functions even
! if you specify the '-fno-builtin' option *note C Dialect Options::).
! Many of these functions are only optimized in certain cases; if they are
! not optimized in a particular case, a call to the library function is
! emitted.
  
!  Outside strict ISO C mode ('-ansi', '-std=c90', '-std=c99' or
! '-std=c11'), the functions '_exit', 'alloca', 'bcmp', 'bzero',
! 'dcgettext', 'dgettext', 'dremf', 'dreml', 'drem', 'exp10f', 'exp10l',
! 'exp10', 'ffsll', 'ffsl', 'ffs', 'fprintf_unlocked', 'fputs_unlocked',
! 'gammaf', 'gammal', 'gamma', 'gammaf_r', 'gammal_r', 'gamma_r',
! 'gettext', 'index', 'isascii', 'j0f', 'j0l', 'j0', 'j1f', 'j1l', 'j1',
! 'jnf', 'jnl', 'jn', 'lgammaf_r', 'lgammal_r', 'lgamma_r', 'mempcpy',
! 'pow10f', 'pow10l', 'pow10', 'printf_unlocked', 'rindex', 'scalbf',
! 'scalbl', 'scalb', 'signbit', 'signbitf', 'signbitl', 'signbitd32',
! 'signbitd64', 'signbitd128', 'significandf', 'significandl',
! 'significand', 'sincosf', 'sincosl', 'sincos', 'stpcpy', 'stpncpy',
! 'strcasecmp', 'strdup', 'strfmon', 'strncasecmp', 'strndup', 'toascii',
! 'y0f', 'y0l', 'y0', 'y1f', 'y1l', 'y1', 'ynf', 'ynl' and 'yn' may be
  handled as built-in functions.  All these functions have corresponding
! versions prefixed with '__builtin_', which may be used even in strict
  C90 mode.
  
!  The ISO C99 functions '_Exit', 'acoshf', 'acoshl', 'acosh', 'asinhf',
! 'asinhl', 'asinh', 'atanhf', 'atanhl', 'atanh', 'cabsf', 'cabsl',
! 'cabs', 'cacosf', 'cacoshf', 'cacoshl', 'cacosh', 'cacosl', 'cacos',
! 'cargf', 'cargl', 'carg', 'casinf', 'casinhf', 'casinhl', 'casinh',
! 'casinl', 'casin', 'catanf', 'catanhf', 'catanhl', 'catanh', 'catanl',
! 'catan', 'cbrtf', 'cbrtl', 'cbrt', 'ccosf', 'ccoshf', 'ccoshl', 'ccosh',
! 'ccosl', 'ccos', 'cexpf', 'cexpl', 'cexp', 'cimagf', 'cimagl', 'cimag',
! 'clogf', 'clogl', 'clog', 'conjf', 'conjl', 'conj', 'copysignf',
! 'copysignl', 'copysign', 'cpowf', 'cpowl', 'cpow', 'cprojf', 'cprojl',
! 'cproj', 'crealf', 'creall', 'creal', 'csinf', 'csinhf', 'csinhl',
! 'csinh', 'csinl', 'csin', 'csqrtf', 'csqrtl', 'csqrt', 'ctanf',
! 'ctanhf', 'ctanhl', 'ctanh', 'ctanl', 'ctan', 'erfcf', 'erfcl', 'erfc',
! 'erff', 'erfl', 'erf', 'exp2f', 'exp2l', 'exp2', 'expm1f', 'expm1l',
! 'expm1', 'fdimf', 'fdiml', 'fdim', 'fmaf', 'fmal', 'fmaxf', 'fmaxl',
! 'fmax', 'fma', 'fminf', 'fminl', 'fmin', 'hypotf', 'hypotl', 'hypot',
! 'ilogbf', 'ilogbl', 'ilogb', 'imaxabs', 'isblank', 'iswblank',
! 'lgammaf', 'lgammal', 'lgamma', 'llabs', 'llrintf', 'llrintl', 'llrint',
! 'llroundf', 'llroundl', 'llround', 'log1pf', 'log1pl', 'log1p', 'log2f',
! 'log2l', 'log2', 'logbf', 'logbl', 'logb', 'lrintf', 'lrintl', 'lrint',
! 'lroundf', 'lroundl', 'lround', 'nearbyintf', 'nearbyintl', 'nearbyint',
! 'nextafterf', 'nextafterl', 'nextafter', 'nexttowardf', 'nexttowardl',
! 'nexttoward', 'remainderf', 'remainderl', 'remainder', 'remquof',
! 'remquol', 'remquo', 'rintf', 'rintl', 'rint', 'roundf', 'roundl',
! 'round', 'scalblnf', 'scalblnl', 'scalbln', 'scalbnf', 'scalbnl',
! 'scalbn', 'snprintf', 'tgammaf', 'tgammal', 'tgamma', 'truncf',
! 'truncl', 'trunc', 'vfscanf', 'vscanf', 'vsnprintf' and 'vsscanf' are
! handled as built-in functions except in strict ISO C90 mode ('-ansi' or
! '-std=c90').
  
!  There are also built-in versions of the ISO C99 functions 'acosf',
! 'acosl', 'asinf', 'asinl', 'atan2f', 'atan2l', 'atanf', 'atanl',
! 'ceilf', 'ceill', 'cosf', 'coshf', 'coshl', 'cosl', 'expf', 'expl',
! 'fabsf', 'fabsl', 'floorf', 'floorl', 'fmodf', 'fmodl', 'frexpf',
! 'frexpl', 'ldexpf', 'ldexpl', 'log10f', 'log10l', 'logf', 'logl',
! 'modfl', 'modf', 'powf', 'powl', 'sinf', 'sinhf', 'sinhl', 'sinl',
! 'sqrtf', 'sqrtl', 'tanf', 'tanhf', 'tanhl' and 'tanl' that are
  recognized in any mode since ISO C90 reserves these names for the
  purpose to which ISO C99 puts them.  All these functions have
! corresponding versions prefixed with '__builtin_'.
  
!  There are also GNU extension functions 'clog10', 'clog10f' and
! 'clog10l' which names are reserved by ISO C99 for future use.  All these
! functions have versions prefixed with '__builtin_'.
  
!  The ISO C94 functions 'iswalnum', 'iswalpha', 'iswcntrl', 'iswdigit',
! 'iswgraph', 'iswlower', 'iswprint', 'iswpunct', 'iswspace', 'iswupper',
! 'iswxdigit', 'towlower' and 'towupper' are handled as built-in functions
! except in strict ISO C90 mode ('-ansi' or '-std=c90').
  
!  The ISO C90 functions 'abort', 'abs', 'acos', 'asin', 'atan2', 'atan',
! 'calloc', 'ceil', 'cosh', 'cos', 'exit', 'exp', 'fabs', 'floor', 'fmod',
! 'fprintf', 'fputs', 'frexp', 'fscanf', 'isalnum', 'isalpha', 'iscntrl',
! 'isdigit', 'isgraph', 'islower', 'isprint', 'ispunct', 'isspace',
! 'isupper', 'isxdigit', 'tolower', 'toupper', 'labs', 'ldexp', 'log10',
! 'log', 'malloc', 'memchr', 'memcmp', 'memcpy', 'memset', 'modf', 'pow',
! 'printf', 'putchar', 'puts', 'scanf', 'sinh', 'sin', 'snprintf',
! 'sprintf', 'sqrt', 'sscanf', 'strcat', 'strchr', 'strcmp', 'strcpy',
! 'strcspn', 'strlen', 'strncat', 'strncmp', 'strncpy', 'strpbrk',
! 'strrchr', 'strspn', 'strstr', 'tanh', 'tan', 'vfprintf', 'vprintf' and
! 'vsprintf' are all recognized as built-in functions unless
! '-fno-builtin' is specified (or '-fno-builtin-FUNCTION' is specified for
! an individual function).  All of these functions have corresponding
! versions prefixed with '__builtin_'.
  
   GCC provides built-in versions of the ISO C99 floating-point comparison
  macros that avoid raising exceptions for unordered operands.  They have
! the same names as the standard macros ( 'isgreater', 'isgreaterequal',
! 'isless', 'islessequal', 'islessgreater', and 'isunordered') , with
! '__builtin_' prefixed.  We intend for a library implementor to be able
! to simply '#define' each standard macro to its built-in equivalent.  In
! the same fashion, GCC provides 'fpclassify', 'isfinite', 'isinf_sign',
! 'isnormal' and 'signbit' built-ins used with '__builtin_' prefixed.  The
! 'isinf' and 'isnan' built-in functions appear both with and without the
! '__builtin_' prefix.
  
   -- Built-in Function: void *__builtin_alloca (size_t size)
!      The '__builtin_alloca' function must be called at block scope.  The
!      function allocates an object SIZE bytes large on the stack of the
!      calling function.  The object is aligned on the default stack
       alignment boundary for the target determined by the
!      '__BIGGEST_ALIGNMENT__' macro.  The '__builtin_alloca' function
       returns a pointer to the first byte of the allocated object.  The
       lifetime of the allocated object ends just before the calling
!      function returns to its caller.  This is so even when
!      '__builtin_alloca' is called within a nested block.
  
!      For example, the following function allocates eight objects of 'n'
       bytes each on the stack, storing a pointer to each in consecutive
!      elements of the array 'a'.  It then passes the array to function
!      'g' which can safely use the storage pointed to by each of the
       array elements.
  
            void f (unsigned n)
*************** the `__builtin_' prefix.
*** 36122,36131 ****
              g (a, n);   // safe
            }
  
!      Since the `__builtin_alloca' function doesn't validate its argument
       it is the responsibility of its caller to make sure the argument
       doesn't cause it to exceed the stack size limit.  The
!      `__builtin_alloca' function is provided to make it possible to
       allocate on the stack arrays of bytes with an upper bound that may
       be computed at run time.  Since C99 Variable Length Arrays offer
       similar functionality under a portable, more convenient, and safer
--- 35763,35772 ----
              g (a, n);   // safe
            }
  
!      Since the '__builtin_alloca' function doesn't validate its argument
       it is the responsibility of its caller to make sure the argument
       doesn't cause it to exceed the stack size limit.  The
!      '__builtin_alloca' function is provided to make it possible to
       allocate on the stack arrays of bytes with an upper bound that may
       be computed at run time.  Since C99 Variable Length Arrays offer
       similar functionality under a portable, more convenient, and safer
*************** the `__builtin_' prefix.
*** 36133,36162 ****
       programs where GCC provides them as an extension.  *Note Variable
       Length::, for details.
  
- 
   -- Built-in Function: void *__builtin_alloca_with_align (size_t size,
            size_t alignment)
!      The `__builtin_alloca_with_align' function must be called at block
       scope.  The function allocates an object SIZE bytes large on the
       stack of the calling function.  The allocated object is aligned on
       the boundary specified by the argument ALIGNMENT whose unit is
       given in bits (not bytes).  The SIZE argument must be positive and
       not exceed the stack size limit.  The ALIGNMENT argument must be a
       constant integer expression that evaluates to a power of 2 greater
!      than or equal to `CHAR_BIT' and less than some unspecified
!      maximum.  Invocations with other values are rejected with an error
!      indicating the valid bounds.  The function returns a pointer to
!      the first byte of the allocated object.  The lifetime of the
!      allocated object ends at the end of the block in which the
!      function was called.  The allocated storage is released no later
!      than just before the calling function returns to its caller, but
!      may be released at the end of the block in which the function was
!      called.
  
!      For example, in the following function the call to `g' is unsafe
!      because when `overalign' is non-zero, the space allocated by
!      `__builtin_alloca_with_align' may have been released at the end of
!      the `if' statement in which it was called.
  
            void f (unsigned n, bool overalign)
            {
--- 35774,35801 ----
       programs where GCC provides them as an extension.  *Note Variable
       Length::, for details.
  
   -- Built-in Function: void *__builtin_alloca_with_align (size_t size,
            size_t alignment)
!      The '__builtin_alloca_with_align' function must be called at block
       scope.  The function allocates an object SIZE bytes large on the
       stack of the calling function.  The allocated object is aligned on
       the boundary specified by the argument ALIGNMENT whose unit is
       given in bits (not bytes).  The SIZE argument must be positive and
       not exceed the stack size limit.  The ALIGNMENT argument must be a
       constant integer expression that evaluates to a power of 2 greater
!      than or equal to 'CHAR_BIT' and less than some unspecified maximum.
!      Invocations with other values are rejected with an error indicating
!      the valid bounds.  The function returns a pointer to the first byte
!      of the allocated object.  The lifetime of the allocated object ends
!      at the end of the block in which the function was called.  The
!      allocated storage is released no later than just before the calling
!      function returns to its caller, but may be released at the end of
!      the block in which the function was called.
  
!      For example, in the following function the call to 'g' is unsafe
!      because when 'overalign' is non-zero, the space allocated by
!      '__builtin_alloca_with_align' may have been released at the end of
!      the 'if' statement in which it was called.
  
            void f (unsigned n, bool overalign)
            {
*************** the `__builtin_' prefix.
*** 36169,36188 ****
              g (p, n);   // unsafe
            }
  
!      Since the `__builtin_alloca_with_align' function doesn't validate
       its SIZE argument it is the responsibility of its caller to make
       sure the argument doesn't cause it to exceed the stack size limit.
!      The `__builtin_alloca_with_align' function is provided to make it
       possible to allocate on the stack overaligned arrays of bytes with
       an upper bound that may be computed at run time.  Since C99
       Variable Length Arrays offer the same functionality under a
       portable, more convenient, and safer interface they are recommended
!      instead, in both C99 and C++ programs where GCC provides them as
!      an extension.  *Note Variable Length::, for details.
! 
  
   -- Built-in Function: int __builtin_types_compatible_p (TYPE1, TYPE2)
!      You can use the built-in function `__builtin_types_compatible_p' to
       determine whether two types are the same.
  
       This built-in function returns 1 if the unqualified versions of the
--- 35808,35827 ----
              g (p, n);   // unsafe
            }
  
!      Since the '__builtin_alloca_with_align' function doesn't validate
       its SIZE argument it is the responsibility of its caller to make
       sure the argument doesn't cause it to exceed the stack size limit.
!      The '__builtin_alloca_with_align' function is provided to make it
       possible to allocate on the stack overaligned arrays of bytes with
       an upper bound that may be computed at run time.  Since C99
       Variable Length Arrays offer the same functionality under a
       portable, more convenient, and safer interface they are recommended
!      instead, in both C99 and C++ programs where GCC provides them as an
!      extension.  *Note Variable Length::, for details.
  
   -- Built-in Function: int __builtin_types_compatible_p (TYPE1, TYPE2)
! 
!      You can use the built-in function '__builtin_types_compatible_p' to
       determine whether two types are the same.
  
       This built-in function returns 1 if the unqualified versions of the
*************** the `__builtin_' prefix.
*** 36190,36210 ****
       compatible, 0 otherwise.  The result of this built-in function can
       be used in integer constant expressions.
  
!      This built-in function ignores top level qualifiers (e.g., `const',
!      `volatile').  For example, `int' is equivalent to `const int'.
  
!      The type `int[]' and `int[5]' are compatible.  On the other hand,
!      `int' and `char *' are not compatible, even if the size of their
       types, on the particular architecture are the same.  Also, the
       amount of pointer indirection is taken into account when
!      determining similarity.  Consequently, `short *' is not similar to
!      `short **'.  Furthermore, two types that are typedefed are
       considered compatible if their underlying types are compatible.
  
!      An `enum' type is not considered to be compatible with another
!      `enum' type even if both are compatible with the same integer
!      type; this is what the C standard specifies.  For example, `enum
!      {foo, bar}' is not similar to `enum {hot, dog}'.
  
       You typically use this function in code whose execution varies
       depending on the arguments' types.  For example:
--- 35829,35849 ----
       compatible, 0 otherwise.  The result of this built-in function can
       be used in integer constant expressions.
  
!      This built-in function ignores top level qualifiers (e.g., 'const',
!      'volatile').  For example, 'int' is equivalent to 'const int'.
  
!      The type 'int[]' and 'int[5]' are compatible.  On the other hand,
!      'int' and 'char *' are not compatible, even if the size of their
       types, on the particular architecture are the same.  Also, the
       amount of pointer indirection is taken into account when
!      determining similarity.  Consequently, 'short *' is not similar to
!      'short **'.  Furthermore, two types that are typedefed are
       considered compatible if their underlying types are compatible.
  
!      An 'enum' type is not considered to be compatible with another
!      'enum' type even if both are compatible with the same integer type;
!      this is what the C standard specifies.  For example, 'enum {foo,
!      bar}' is not similar to 'enum {hot, dog}'.
  
       You typically use this function in code whose execution varies
       depending on the arguments' types.  For example:
*************** the `__builtin_' prefix.
*** 36225,36233 ****
  
       _Note:_ This construct is only available for C.
  
- 
   -- Built-in Function: TYPE __builtin_call_with_static_chain (CALL_EXP,
            POINTER_EXP)
       The CALL_EXP expression must be a function call, and the
       POINTER_EXP expression must be a pointer.  The POINTER_EXP is
       passed to the function call in the target's static chain location.
--- 35864,35872 ----
  
       _Note:_ This construct is only available for C.
  
   -- Built-in Function: TYPE __builtin_call_with_static_chain (CALL_EXP,
            POINTER_EXP)
+ 
       The CALL_EXP expression must be a function call, and the
       POINTER_EXP expression must be a pointer.  The POINTER_EXP is
       passed to the function call in the target's static chain location.
*************** the `__builtin_' prefix.
*** 36236,36256 ****
       _Note:_ This builtin is only available for C.  This builtin can be
       used to call Go closures from C.
  
- 
   -- Built-in Function: TYPE __builtin_choose_expr (CONST_EXP, EXP1,
            EXP2)
!      You can use the built-in function `__builtin_choose_expr' to
       evaluate code depending on the value of a constant expression.
       This built-in function returns EXP1 if CONST_EXP, which is an
       integer constant expression, is nonzero.  Otherwise it returns
       EXP2.
  
!      This built-in function is analogous to the `? :' operator in C,
       except that the expression returned has its type unaltered by
!      promotion rules.  Also, the built-in function does not evaluate
!      the expression that is not chosen.  For example, if CONST_EXP
!      evaluates to true, EXP2 is not evaluated even if it has
!      side-effects.
  
       This built-in function can return an lvalue if the chosen argument
       is an lvalue.
--- 35875,35894 ----
       _Note:_ This builtin is only available for C.  This builtin can be
       used to call Go closures from C.
  
   -- Built-in Function: TYPE __builtin_choose_expr (CONST_EXP, EXP1,
            EXP2)
! 
!      You can use the built-in function '__builtin_choose_expr' to
       evaluate code depending on the value of a constant expression.
       This built-in function returns EXP1 if CONST_EXP, which is an
       integer constant expression, is nonzero.  Otherwise it returns
       EXP2.
  
!      This built-in function is analogous to the '? :' operator in C,
       except that the expression returned has its type unaltered by
!      promotion rules.  Also, the built-in function does not evaluate the
!      expression that is not chosen.  For example, if CONST_EXP evaluates
!      to true, EXP2 is not evaluated even if it has side-effects.
  
       This built-in function can return an lvalue if the chosen argument
       is an lvalue.
*************** the `__builtin_' prefix.
*** 36277,36309 ****
       CONST_EXP) may still generate syntax errors.  This may change in
       future revisions.
  
- 
   -- Built-in Function: TYPE __builtin_complex (REAL, IMAG)
-      The built-in function `__builtin_complex' is provided for use in
-      implementing the ISO C11 macros `CMPLXF', `CMPLX' and `CMPLXL'.
-      REAL and IMAG must have the same type, a real binary
-      floating-point type, and the result has the corresponding complex
-      type with real and imaginary parts REAL and IMAG.  Unlike `REAL +
-      I * IMAG', this works even when infinities, NaNs and negative
-      zeros are involved.
  
  
   -- Built-in Function: int __builtin_constant_p (EXP)
!      You can use the built-in function `__builtin_constant_p' to
       determine if a value is known to be constant at compile time and
       hence that GCC can perform constant-folding on expressions
!      involving that value.  The argument of the function is the value
!      to test.  The function returns the integer 1 if the argument is
!      known to be a compile-time constant and 0 if it is not known to be
!      a compile-time constant.  A return of 0 does not indicate that the
!      value is _not_ a constant, but merely that GCC cannot prove it is
!      a constant with the specified value of the `-O' option.
  
       You typically use this function in an embedded application where
       memory is a critical resource.  If you have some complex
!      calculation, you may want it to be folded if it involves
!      constants, but need to call a function if it does not.  For
!      example:
  
            #define Scale_Value(X)      \
              (__builtin_constant_p (X) \
--- 35915,35944 ----
       CONST_EXP) may still generate syntax errors.  This may change in
       future revisions.
  
   -- Built-in Function: TYPE __builtin_complex (REAL, IMAG)
  
+      The built-in function '__builtin_complex' is provided for use in
+      implementing the ISO C11 macros 'CMPLXF', 'CMPLX' and 'CMPLXL'.
+      REAL and IMAG must have the same type, a real binary floating-point
+      type, and the result has the corresponding complex type with real
+      and imaginary parts REAL and IMAG.  Unlike 'REAL + I * IMAG', this
+      works even when infinities, NaNs and negative zeros are involved.
  
   -- Built-in Function: int __builtin_constant_p (EXP)
!      You can use the built-in function '__builtin_constant_p' to
       determine if a value is known to be constant at compile time and
       hence that GCC can perform constant-folding on expressions
!      involving that value.  The argument of the function is the value to
!      test.  The function returns the integer 1 if the argument is known
!      to be a compile-time constant and 0 if it is not known to be a
!      compile-time constant.  A return of 0 does not indicate that the
!      value is _not_ a constant, but merely that GCC cannot prove it is a
!      constant with the specified value of the '-O' option.
  
       You typically use this function in an embedded application where
       memory is a critical resource.  If you have some complex
!      calculation, you may want it to be folded if it involves constants,
!      but need to call a function if it does not.  For example:
  
            #define Scale_Value(X)      \
              (__builtin_constant_p (X) \
*************** the `__builtin_' prefix.
*** 36315,36323 ****
       never returns 1 when you call the inline function with a string
       constant or compound literal (*note Compound Literals::) and does
       not return 1 when you pass a constant numeric value to the inline
!      function unless you specify the `-O' option.
  
!      You may also use `__builtin_constant_p' in initializers for static
       data.  For instance, you can write
  
            static const int table[] = {
--- 35950,35958 ----
       never returns 1 when you call the inline function with a string
       constant or compound literal (*note Compound Literals::) and does
       not return 1 when you pass a constant numeric value to the inline
!      function unless you specify the '-O' option.
  
!      You may also use '__builtin_constant_p' in initializers for static
       data.  For instance, you can write
  
            static const int table[] = {
*************** the `__builtin_' prefix.
*** 36327,36346 ****
  
       This is an acceptable initializer even if EXPRESSION is not a
       constant expression, including the case where
!      `__builtin_constant_p' returns 1 because EXPRESSION can be folded
       to a constant but EXPRESSION contains operands that are not
!      otherwise permitted in a static initializer (for example, `0 &&
!      foo ()').  GCC must be more conservative about evaluating the
!      built-in in this case, because it has no opportunity to perform
       optimization.
  
   -- Built-in Function: long __builtin_expect (long EXP, long C)
!      You may use `__builtin_expect' to provide the compiler with branch
       prediction information.  In general, you should prefer to use
!      actual profile feedback for this (`-fprofile-arcs'), as
!      programmers are notoriously bad at predicting how their programs
!      actually perform.  However, there are applications in which this
!      data is hard to collect.
  
       The return value is the value of EXP, which should be an integral
       expression.  The semantics of the built-in are that it is expected
--- 35962,35981 ----
  
       This is an acceptable initializer even if EXPRESSION is not a
       constant expression, including the case where
!      '__builtin_constant_p' returns 1 because EXPRESSION can be folded
       to a constant but EXPRESSION contains operands that are not
!      otherwise permitted in a static initializer (for example, '0 && foo
!      ()').  GCC must be more conservative about evaluating the built-in
!      in this case, because it has no opportunity to perform
       optimization.
  
   -- Built-in Function: long __builtin_expect (long EXP, long C)
!      You may use '__builtin_expect' to provide the compiler with branch
       prediction information.  In general, you should prefer to use
!      actual profile feedback for this ('-fprofile-arcs'), as programmers
!      are notoriously bad at predicting how their programs actually
!      perform.  However, there are applications in which this data is
!      hard to collect.
  
       The return value is the value of EXP, which should be an integral
       expression.  The semantics of the built-in are that it is expected
*************** the `__builtin_' prefix.
*** 36349,36357 ****
            if (__builtin_expect (x, 0))
              foo ();
  
!      indicates that we do not expect to call `foo', since we expect `x'
!      to be zero.  Since you are limited to integral expressions for
!      EXP, you should use constructions such as
  
            if (__builtin_expect (ptr != NULL, 1))
              foo (*ptr);
--- 35984,35992 ----
            if (__builtin_expect (x, 0))
              foo ();
  
!      indicates that we do not expect to call 'foo', since we expect 'x'
!      to be zero.  Since you are limited to integral expressions for EXP,
!      you should use constructions such as
  
            if (__builtin_expect (ptr != NULL, 1))
              foo (*ptr);
*************** the `__builtin_' prefix.
*** 36362,36381 ****
       This function causes the program to exit abnormally.  GCC
       implements this function by using a target-dependent mechanism
       (such as intentionally executing an illegal instruction) or by
!      calling `abort'.  The mechanism used may vary from release to
       release so you should not rely on any particular implementation.
  
   -- Built-in Function: void __builtin_unreachable (void)
!      If control flow reaches the point of the `__builtin_unreachable',
       the program is undefined.  It is useful in situations where the
       compiler cannot deduce the unreachability of the code.
  
!      One such case is immediately following an `asm' statement that
       either never terminates, or one that transfers control elsewhere
       and never returns.  In this example, without the
!      `__builtin_unreachable', GCC issues a warning that control reaches
       the end of a non-void function.  It also generates code to return
!      after the `asm'.
  
            int f (int c, int v)
            {
--- 35997,36016 ----
       This function causes the program to exit abnormally.  GCC
       implements this function by using a target-dependent mechanism
       (such as intentionally executing an illegal instruction) or by
!      calling 'abort'.  The mechanism used may vary from release to
       release so you should not rely on any particular implementation.
  
   -- Built-in Function: void __builtin_unreachable (void)
!      If control flow reaches the point of the '__builtin_unreachable',
       the program is undefined.  It is useful in situations where the
       compiler cannot deduce the unreachability of the code.
  
!      One such case is immediately following an 'asm' statement that
       either never terminates, or one that transfers control elsewhere
       and never returns.  In this example, without the
!      '__builtin_unreachable', GCC issues a warning that control reaches
       the end of a non-void function.  It also generates code to return
!      after the 'asm'.
  
            int f (int c, int v)
            {
*************** the `__builtin_' prefix.
*** 36390,36403 ****
                }
            }
  
!      Because the `asm' statement unconditionally transfers control out
       of the function, control never reaches the end of the function
!      body.  The `__builtin_unreachable' is in fact unreachable and
       communicates this fact to the compiler.
  
!      Another use for `__builtin_unreachable' is following a call a
       function that never returns but that is not declared
!      `__attribute__((noreturn))', as in this example:
  
            void function_that_never_returns (void);
  
--- 36025,36038 ----
                }
            }
  
!      Because the 'asm' statement unconditionally transfers control out
       of the function, control never reaches the end of the function
!      body.  The '__builtin_unreachable' is in fact unreachable and
       communicates this fact to the compiler.
  
!      Another use for '__builtin_unreachable' is following a call a
       function that never returns but that is not declared
!      '__attribute__((noreturn))', as in this example:
  
            void function_that_never_returns (void);
  
*************** the `__builtin_' prefix.
*** 36414,36422 ****
                }
            }
  
! 
!  -- Built-in Function: void * __builtin_assume_aligned (const void
!           *EXP, size_t ALIGN, ...)
       This function returns its first argument, and allows the compiler
       to assume that the returned pointer is at least ALIGN bytes
       aligned.  This built-in can have either two or three arguments, if
--- 36049,36056 ----
                }
            }
  
!  -- Built-in Function: void * __builtin_assume_aligned (const void *EXP,
!           size_t ALIGN, ...)
       This function returns its first argument, and allows the compiler
       to assume that the returned pointer is at least ALIGN bytes
       aligned.  This built-in can have either two or three arguments, if
*************** the `__builtin_' prefix.
*** 36425,36451 ****
  
            void *x = __builtin_assume_aligned (arg, 16);
  
!      means that the compiler can assume `x', set to `arg', is at least
       16-byte aligned, while:
  
            void *x = __builtin_assume_aligned (arg, 32, 8);
  
!      means that the compiler can assume for `x', set to `arg', that
!      `(char *) x - 8' is 32-byte aligned.
  
   -- Built-in Function: int __builtin_LINE ()
!      This function is the equivalent to the preprocessor `__LINE__'
       macro and returns the line number of the invocation of the
       built-in.  In a C++ default argument for a function F, it gets the
       line number of the call to F.
  
   -- Built-in Function: const char * __builtin_FUNCTION ()
!      This function is the equivalent to the preprocessor `__FUNCTION__'
       macro and returns the function name the invocation of the built-in
       is in.
  
   -- Built-in Function: const char * __builtin_FILE ()
!      This function is the equivalent to the preprocessor `__FILE__'
       macro and returns the file name the invocation of the built-in is
       in.  In a C++ default argument for a function F, it gets the file
       name of the call to F.
--- 36059,36085 ----
  
            void *x = __builtin_assume_aligned (arg, 16);
  
!      means that the compiler can assume 'x', set to 'arg', is at least
       16-byte aligned, while:
  
            void *x = __builtin_assume_aligned (arg, 32, 8);
  
!      means that the compiler can assume for 'x', set to 'arg', that
!      '(char *) x - 8' is 32-byte aligned.
  
   -- Built-in Function: int __builtin_LINE ()
!      This function is the equivalent to the preprocessor '__LINE__'
       macro and returns the line number of the invocation of the
       built-in.  In a C++ default argument for a function F, it gets the
       line number of the call to F.
  
   -- Built-in Function: const char * __builtin_FUNCTION ()
!      This function is the equivalent to the preprocessor '__FUNCTION__'
       macro and returns the function name the invocation of the built-in
       is in.
  
   -- Built-in Function: const char * __builtin_FILE ()
!      This function is the equivalent to the preprocessor '__FILE__'
       macro and returns the file name the invocation of the built-in is
       in.  In a C++ default argument for a function F, it gets the file
       name of the call to F.
*************** the `__builtin_' prefix.
*** 36453,36473 ****
   -- Built-in Function: void __builtin___clear_cache (char *BEGIN, char
            *END)
       This function is used to flush the processor's instruction cache
!      for the region of memory between BEGIN inclusive and END
!      exclusive.  Some targets require that the instruction cache be
!      flushed, after modifying memory containing code, in order to obtain
!      deterministic behavior.
  
       If the target does not require instruction cache flushes,
!      `__builtin___clear_cache' has no effect.  Otherwise either
       instructions are emitted in-line to clear the instruction cache or
!      a call to the `__clear_cache' function in libgcc is made.
  
   -- Built-in Function: void __builtin_prefetch (const void *ADDR, ...)
!      This function is used to minimize cache-miss latency by moving
!      data into a cache before it is accessed.  You can insert calls to
!      `__builtin_prefetch' into code for which you know addresses of
!      data in memory that is likely to be accessed soon.  If the target
       supports them, data prefetch instructions are generated.  If the
       prefetch is done early enough before the access then the data will
       be in the cache by the time it is accessed.
--- 36087,36107 ----
   -- Built-in Function: void __builtin___clear_cache (char *BEGIN, char
            *END)
       This function is used to flush the processor's instruction cache
!      for the region of memory between BEGIN inclusive and END exclusive.
!      Some targets require that the instruction cache be flushed, after
!      modifying memory containing code, in order to obtain deterministic
!      behavior.
  
       If the target does not require instruction cache flushes,
!      '__builtin___clear_cache' has no effect.  Otherwise either
       instructions are emitted in-line to clear the instruction cache or
!      a call to the '__clear_cache' function in libgcc is made.
  
   -- Built-in Function: void __builtin_prefetch (const void *ADDR, ...)
!      This function is used to minimize cache-miss latency by moving data
!      into a cache before it is accessed.  You can insert calls to
!      '__builtin_prefetch' into code for which you know addresses of data
!      in memory that is likely to be accessed soon.  If the target
       supports them, data prefetch instructions are generated.  If the
       prefetch is done early enough before the access then the data will
       be in the cache by the time it is accessed.
*************** the `__builtin_' prefix.
*** 36495,36502 ****
  
       Data prefetch does not generate faults if ADDR is invalid, but the
       address expression itself must be valid.  For example, a prefetch
!      of `p->next' does not fault if `p->next' is not a valid address,
!      but evaluation faults if `p' is not a valid address.
  
       If the target does not support data prefetch, the address
       expression is evaluated if it includes side effects but no other
--- 36129,36136 ----
  
       Data prefetch does not generate faults if ADDR is invalid, but the
       address expression itself must be valid.  For example, a prefetch
!      of 'p->next' does not fault if 'p->next' is not a valid address,
!      but evaluation faults if 'p' is not a valid address.
  
       If the target does not support data prefetch, the address
       expression is evaluated if it includes side effects but no other
*************** the `__builtin_' prefix.
*** 36504,36517 ****
  
   -- Built-in Function: double __builtin_huge_val (void)
       Returns a positive infinity, if supported by the floating-point
!      format, else `DBL_MAX'.  This function is suitable for
!      implementing the ISO C macro `HUGE_VAL'.
  
   -- Built-in Function: float __builtin_huge_valf (void)
!      Similar to `__builtin_huge_val', except the return type is `float'.
  
   -- Built-in Function: long double __builtin_huge_vall (void)
!      Similar to `__builtin_huge_val', except the return type is `long
       double'.
  
   -- Built-in Function: int __builtin_fpclassify (int, int, int, int,
--- 36138,36151 ----
  
   -- Built-in Function: double __builtin_huge_val (void)
       Returns a positive infinity, if supported by the floating-point
!      format, else 'DBL_MAX'.  This function is suitable for implementing
!      the ISO C macro 'HUGE_VAL'.
  
   -- Built-in Function: float __builtin_huge_valf (void)
!      Similar to '__builtin_huge_val', except the return type is 'float'.
  
   -- Built-in Function: long double __builtin_huge_vall (void)
!      Similar to '__builtin_huge_val', except the return type is 'long
       double'.
  
   -- Built-in Function: int __builtin_fpclassify (int, int, int, int,
*************** the `__builtin_' prefix.
*** 36519,36603 ****
       This built-in implements the C99 fpclassify functionality.  The
       first five int arguments should be the target library's notion of
       the possible FP classes and are used for return values.  They must
!      be constant values and they must appear in this order: `FP_NAN',
!      `FP_INFINITE', `FP_NORMAL', `FP_SUBNORMAL' and `FP_ZERO'.  The
       ellipsis is for exactly one floating-point value to classify.  GCC
       treats the last argument as type-generic, which means it does not
       do default promotion from float to double.
  
   -- Built-in Function: double __builtin_inf (void)
!      Similar to `__builtin_huge_val', except a warning is generated if
       the target floating-point format does not support infinities.
  
   -- Built-in Function: _Decimal32 __builtin_infd32 (void)
!      Similar to `__builtin_inf', except the return type is `_Decimal32'.
  
   -- Built-in Function: _Decimal64 __builtin_infd64 (void)
!      Similar to `__builtin_inf', except the return type is `_Decimal64'.
  
   -- Built-in Function: _Decimal128 __builtin_infd128 (void)
!      Similar to `__builtin_inf', except the return type is
!      `_Decimal128'.
  
   -- Built-in Function: float __builtin_inff (void)
!      Similar to `__builtin_inf', except the return type is `float'.
       This function is suitable for implementing the ISO C99 macro
!      `INFINITY'.
  
   -- Built-in Function: long double __builtin_infl (void)
!      Similar to `__builtin_inf', except the return type is `long
       double'.
  
   -- Built-in Function: int __builtin_isinf_sign (...)
!      Similar to `isinf', except the return value is -1 for an argument
!      of `-Inf' and 1 for an argument of `+Inf'.  Note while the
       parameter list is an ellipsis, this function only accepts exactly
       one floating-point argument.  GCC treats this parameter as
       type-generic, which means it does not do default promotion from
       float to double.
  
   -- Built-in Function: double __builtin_nan (const char *str)
!      This is an implementation of the ISO C99 function `nan'.
  
!      Since ISO C99 defines this function in terms of `strtod', which we
       do not implement, a description of the parsing is in order.  The
!      string is parsed as by `strtol'; that is, the base is recognized by
!      leading `0' or `0x' prefixes.  The number parsed is placed in the
!      significand such that the least significant bit of the number is
!      at the least significant bit of the significand.  The number is
       truncated to fit the significand field provided.  The significand
       is forced to be a quiet NaN.
  
       This function, if given a string literal all of which would have
!      been consumed by `strtol', is evaluated early enough that it is
       considered a compile-time constant.
  
   -- Built-in Function: _Decimal32 __builtin_nand32 (const char *str)
!      Similar to `__builtin_nan', except the return type is `_Decimal32'.
  
   -- Built-in Function: _Decimal64 __builtin_nand64 (const char *str)
!      Similar to `__builtin_nan', except the return type is `_Decimal64'.
  
   -- Built-in Function: _Decimal128 __builtin_nand128 (const char *str)
!      Similar to `__builtin_nan', except the return type is
!      `_Decimal128'.
  
   -- Built-in Function: float __builtin_nanf (const char *str)
!      Similar to `__builtin_nan', except the return type is `float'.
  
   -- Built-in Function: long double __builtin_nanl (const char *str)
!      Similar to `__builtin_nan', except the return type is `long
       double'.
  
   -- Built-in Function: double __builtin_nans (const char *str)
!      Similar to `__builtin_nan', except the significand is forced to be
!      a signaling NaN.  The `nans' function is proposed by WG14 N965.
  
   -- Built-in Function: float __builtin_nansf (const char *str)
!      Similar to `__builtin_nans', except the return type is `float'.
  
   -- Built-in Function: long double __builtin_nansl (const char *str)
!      Similar to `__builtin_nans', except the return type is `long
       double'.
  
   -- Built-in Function: int __builtin_ffs (int x)
--- 36153,36237 ----
       This built-in implements the C99 fpclassify functionality.  The
       first five int arguments should be the target library's notion of
       the possible FP classes and are used for return values.  They must
!      be constant values and they must appear in this order: 'FP_NAN',
!      'FP_INFINITE', 'FP_NORMAL', 'FP_SUBNORMAL' and 'FP_ZERO'.  The
       ellipsis is for exactly one floating-point value to classify.  GCC
       treats the last argument as type-generic, which means it does not
       do default promotion from float to double.
  
   -- Built-in Function: double __builtin_inf (void)
!      Similar to '__builtin_huge_val', except a warning is generated if
       the target floating-point format does not support infinities.
  
   -- Built-in Function: _Decimal32 __builtin_infd32 (void)
!      Similar to '__builtin_inf', except the return type is '_Decimal32'.
  
   -- Built-in Function: _Decimal64 __builtin_infd64 (void)
!      Similar to '__builtin_inf', except the return type is '_Decimal64'.
  
   -- Built-in Function: _Decimal128 __builtin_infd128 (void)
!      Similar to '__builtin_inf', except the return type is
!      '_Decimal128'.
  
   -- Built-in Function: float __builtin_inff (void)
!      Similar to '__builtin_inf', except the return type is 'float'.
       This function is suitable for implementing the ISO C99 macro
!      'INFINITY'.
  
   -- Built-in Function: long double __builtin_infl (void)
!      Similar to '__builtin_inf', except the return type is 'long
       double'.
  
   -- Built-in Function: int __builtin_isinf_sign (...)
!      Similar to 'isinf', except the return value is -1 for an argument
!      of '-Inf' and 1 for an argument of '+Inf'.  Note while the
       parameter list is an ellipsis, this function only accepts exactly
       one floating-point argument.  GCC treats this parameter as
       type-generic, which means it does not do default promotion from
       float to double.
  
   -- Built-in Function: double __builtin_nan (const char *str)
!      This is an implementation of the ISO C99 function 'nan'.
  
!      Since ISO C99 defines this function in terms of 'strtod', which we
       do not implement, a description of the parsing is in order.  The
!      string is parsed as by 'strtol'; that is, the base is recognized by
!      leading '0' or '0x' prefixes.  The number parsed is placed in the
!      significand such that the least significant bit of the number is at
!      the least significant bit of the significand.  The number is
       truncated to fit the significand field provided.  The significand
       is forced to be a quiet NaN.
  
       This function, if given a string literal all of which would have
!      been consumed by 'strtol', is evaluated early enough that it is
       considered a compile-time constant.
  
   -- Built-in Function: _Decimal32 __builtin_nand32 (const char *str)
!      Similar to '__builtin_nan', except the return type is '_Decimal32'.
  
   -- Built-in Function: _Decimal64 __builtin_nand64 (const char *str)
!      Similar to '__builtin_nan', except the return type is '_Decimal64'.
  
   -- Built-in Function: _Decimal128 __builtin_nand128 (const char *str)
!      Similar to '__builtin_nan', except the return type is
!      '_Decimal128'.
  
   -- Built-in Function: float __builtin_nanf (const char *str)
!      Similar to '__builtin_nan', except the return type is 'float'.
  
   -- Built-in Function: long double __builtin_nanl (const char *str)
!      Similar to '__builtin_nan', except the return type is 'long
       double'.
  
   -- Built-in Function: double __builtin_nans (const char *str)
!      Similar to '__builtin_nan', except the significand is forced to be
!      a signaling NaN.  The 'nans' function is proposed by WG14 N965.
  
   -- Built-in Function: float __builtin_nansf (const char *str)
!      Similar to '__builtin_nans', except the return type is 'float'.
  
   -- Built-in Function: long double __builtin_nansl (const char *str)
!      Similar to '__builtin_nans', except the return type is 'long
       double'.
  
   -- Built-in Function: int __builtin_ffs (int x)
*************** the `__builtin_' prefix.
*** 36624,36697 ****
       Returns the parity of X, i.e. the number of 1-bits in X modulo 2.
  
   -- Built-in Function: int __builtin_ffsl (long)
!      Similar to `__builtin_ffs', except the argument type is `long'.
  
   -- Built-in Function: int __builtin_clzl (unsigned long)
!      Similar to `__builtin_clz', except the argument type is `unsigned
       long'.
  
   -- Built-in Function: int __builtin_ctzl (unsigned long)
!      Similar to `__builtin_ctz', except the argument type is `unsigned
       long'.
  
   -- Built-in Function: int __builtin_clrsbl (long)
!      Similar to `__builtin_clrsb', except the argument type is `long'.
  
   -- Built-in Function: int __builtin_popcountl (unsigned long)
!      Similar to `__builtin_popcount', except the argument type is
!      `unsigned long'.
  
   -- Built-in Function: int __builtin_parityl (unsigned long)
!      Similar to `__builtin_parity', except the argument type is
!      `unsigned long'.
  
   -- Built-in Function: int __builtin_ffsll (long long)
!      Similar to `__builtin_ffs', except the argument type is `long
       long'.
  
   -- Built-in Function: int __builtin_clzll (unsigned long long)
!      Similar to `__builtin_clz', except the argument type is `unsigned
       long long'.
  
   -- Built-in Function: int __builtin_ctzll (unsigned long long)
!      Similar to `__builtin_ctz', except the argument type is `unsigned
       long long'.
  
   -- Built-in Function: int __builtin_clrsbll (long long)
!      Similar to `__builtin_clrsb', except the argument type is `long
       long'.
  
   -- Built-in Function: int __builtin_popcountll (unsigned long long)
!      Similar to `__builtin_popcount', except the argument type is
!      `unsigned long long'.
  
   -- Built-in Function: int __builtin_parityll (unsigned long long)
!      Similar to `__builtin_parity', except the argument type is
!      `unsigned long long'.
  
   -- Built-in Function: double __builtin_powi (double, int)
       Returns the first argument raised to the power of the second.
!      Unlike the `pow' function no guarantees about precision and
       rounding are made.
  
   -- Built-in Function: float __builtin_powif (float, int)
!      Similar to `__builtin_powi', except the argument and return types
!      are `float'.
  
   -- Built-in Function: long double __builtin_powil (long double, int)
!      Similar to `__builtin_powi', except the argument and return types
!      are `long double'.
  
   -- Built-in Function: uint16_t __builtin_bswap16 (uint16_t x)
       Returns X with the order of the bytes reversed; for example,
!      `0xaabb' becomes `0xbbaa'.  Byte here always means exactly 8 bits.
  
   -- Built-in Function: uint32_t __builtin_bswap32 (uint32_t x)
!      Similar to `__builtin_bswap16', except the argument and return
       types are 32 bit.
  
   -- Built-in Function: uint64_t __builtin_bswap64 (uint64_t x)
!      Similar to `__builtin_bswap32', except the argument and return
       types are 64 bit.
  
  
--- 36258,36331 ----
       Returns the parity of X, i.e. the number of 1-bits in X modulo 2.
  
   -- Built-in Function: int __builtin_ffsl (long)
!      Similar to '__builtin_ffs', except the argument type is 'long'.
  
   -- Built-in Function: int __builtin_clzl (unsigned long)
!      Similar to '__builtin_clz', except the argument type is 'unsigned
       long'.
  
   -- Built-in Function: int __builtin_ctzl (unsigned long)
!      Similar to '__builtin_ctz', except the argument type is 'unsigned
       long'.
  
   -- Built-in Function: int __builtin_clrsbl (long)
!      Similar to '__builtin_clrsb', except the argument type is 'long'.
  
   -- Built-in Function: int __builtin_popcountl (unsigned long)
!      Similar to '__builtin_popcount', except the argument type is
!      'unsigned long'.
  
   -- Built-in Function: int __builtin_parityl (unsigned long)
!      Similar to '__builtin_parity', except the argument type is
!      'unsigned long'.
  
   -- Built-in Function: int __builtin_ffsll (long long)
!      Similar to '__builtin_ffs', except the argument type is 'long
       long'.
  
   -- Built-in Function: int __builtin_clzll (unsigned long long)
!      Similar to '__builtin_clz', except the argument type is 'unsigned
       long long'.
  
   -- Built-in Function: int __builtin_ctzll (unsigned long long)
!      Similar to '__builtin_ctz', except the argument type is 'unsigned
       long long'.
  
   -- Built-in Function: int __builtin_clrsbll (long long)
!      Similar to '__builtin_clrsb', except the argument type is 'long
       long'.
  
   -- Built-in Function: int __builtin_popcountll (unsigned long long)
!      Similar to '__builtin_popcount', except the argument type is
!      'unsigned long long'.
  
   -- Built-in Function: int __builtin_parityll (unsigned long long)
!      Similar to '__builtin_parity', except the argument type is
!      'unsigned long long'.
  
   -- Built-in Function: double __builtin_powi (double, int)
       Returns the first argument raised to the power of the second.
!      Unlike the 'pow' function no guarantees about precision and
       rounding are made.
  
   -- Built-in Function: float __builtin_powif (float, int)
!      Similar to '__builtin_powi', except the argument and return types
!      are 'float'.
  
   -- Built-in Function: long double __builtin_powil (long double, int)
!      Similar to '__builtin_powi', except the argument and return types
!      are 'long double'.
  
   -- Built-in Function: uint16_t __builtin_bswap16 (uint16_t x)
       Returns X with the order of the bytes reversed; for example,
!      '0xaabb' becomes '0xbbaa'.  Byte here always means exactly 8 bits.
  
   -- Built-in Function: uint32_t __builtin_bswap32 (uint32_t x)
!      Similar to '__builtin_bswap16', except the argument and return
       types are 32 bit.
  
   -- Built-in Function: uint64_t __builtin_bswap64 (uint64_t x)
!      Similar to '__builtin_bswap32', except the argument and return
       types are 64 bit.
  
  
*************** generate the machine instruction that is
*** 36792,36800 ****
       long __builtin_alpha_zap (long, long)
       long __builtin_alpha_zapnot (long, long)
  
!  The following built-in functions are always with `-mmax' or
! `-mcpu=CPU' where CPU is `pca56' or later.  They all generate the
! machine instruction that is part of the name.
  
       long __builtin_alpha_pklb (long)
       long __builtin_alpha_pkwb (long)
--- 36426,36434 ----
       long __builtin_alpha_zap (long, long)
       long __builtin_alpha_zapnot (long, long)
  
!  The following built-in functions are always with '-mmax' or '-mcpu=CPU'
! where CPU is 'pca56' or later.  They all generate the machine
! instruction that is part of the name.
  
       long __builtin_alpha_pklb (long)
       long __builtin_alpha_pkwb (long)
*************** machine instruction that is part of the
*** 36810,36827 ****
       long __builtin_alpha_maxsw4 (long, long)
       long __builtin_alpha_perr (long, long)
  
!  The following built-in functions are always with `-mcix' or
! `-mcpu=CPU' where CPU is `ev67' or later.  They all generate the
! machine instruction that is part of the name.
  
       long __builtin_alpha_cttz (long)
       long __builtin_alpha_ctlz (long)
       long __builtin_alpha_ctpop (long)
  
   The following built-in functions are available on systems that use the
! OSF/1 PALcode.  Normally they invoke the `rduniq' and `wruniq' PAL
! calls, but when invoked with `-mtls-kernel', they invoke `rdval' and
! `wrval'.
  
       void *__builtin_thread_pointer (void)
       void __builtin_set_thread_pointer (void *)
--- 36444,36461 ----
       long __builtin_alpha_maxsw4 (long, long)
       long __builtin_alpha_perr (long, long)
  
!  The following built-in functions are always with '-mcix' or '-mcpu=CPU'
! where CPU is 'ev67' or later.  They all generate the machine instruction
! that is part of the name.
  
       long __builtin_alpha_cttz (long)
       long __builtin_alpha_ctlz (long)
       long __builtin_alpha_ctpop (long)
  
   The following built-in functions are available on systems that use the
! OSF/1 PALcode.  Normally they invoke the 'rduniq' and 'wruniq' PAL
! calls, but when invoked with '-mtls-kernel', they invoke 'rdval' and
! 'wrval'.
  
       void *__builtin_thread_pointer (void)
       void __builtin_set_thread_pointer (void *)
*************** generate the machine instruction that is
*** 36860,36885 ****
       int __builtin_stsex (volatile void *, int)
  
   The following built-in functions are always available.  They all
! generate a Nios II Custom Instruction. The name of the function
! represents the types that the function takes and returns. The letter
! before the `n' is the return type or void if absent. The `n' represents
  the first parameter to all the custom instructions, the custom
! instruction number.  The two letters after the `n' represent the up to
  two parameters to the function.
  
   The letters represent the following data types:
! `<no letter>'
!      `void' for return type and no parameter for parameter types.
! 
! `i'
!      `int' for return type and parameter type
  
! `f'
!      `float' for return type and parameter type
  
! `p'
!      `void *' for return type and parameter type
  
  
   And the function names are:
       void __builtin_custom_n (void)
--- 36494,36518 ----
       int __builtin_stsex (volatile void *, int)
  
   The following built-in functions are always available.  They all
! generate a Nios II Custom Instruction.  The name of the function
! represents the types that the function takes and returns.  The letter
! before the 'n' is the return type or void if absent.  The 'n' represents
  the first parameter to all the custom instructions, the custom
! instruction number.  The two letters after the 'n' represent the up to
  two parameters to the function.
  
   The letters represent the following data types:
! '<no letter>'
!      'void' for return type and no parameter for parameter types.
  
! 'i'
!      'int' for return type and parameter type
  
! 'f'
!      'float' for return type and parameter type
  
+ 'p'
+      'void *' for return type and parameter type
  
   And the function names are:
       void __builtin_custom_n (void)
*************** generated to ensure this is true, but fo
*** 36949,36955 ****
  in each case.
  
   _Note:_ Using a built-in to generate an instruction not supported by a
! target may cause problems. At present the compiler is not guaranteed to
  detect such misuse, and as a result an internal compiler error may be
  generated.
  
--- 36582,36588 ----
  in each case.
  
   _Note:_ Using a built-in to generate an instruction not supported by a
! target may cause problems.  At present the compiler is not guaranteed to
  detect such misuse, and as a result an internal compiler error may be
  generated.
  
*************** generated.
*** 36982,36988 ****
            mov  rREGNO, VAL
  
   -- Built-in Function: int __builtin_arc_divaw (int A, int B)
!      Only available if either `-mcpu=ARC700' or `-meA' is set.
       Generates:
            divaw  DEST, A, B
       where the value in DEST will be the result returned from the
--- 36615,36621 ----
            mov  rREGNO, VAL
  
   -- Built-in Function: int __builtin_arc_divaw (int A, int B)
!      Only available if either '-mcpu=ARC700' or '-meA' is set.
       Generates:
            divaw  DEST, A, B
       where the value in DEST will be the result returned from the
*************** generated.
*** 36993,37011 ****
            flag  A
  
   -- Built-in Function: unsigned int __builtin_arc_lr (unsigned int AUXR)
!      The operand, AUXV, is the address of an auxiliary register and
!      must be a compile time constant.  Generates:
            lr  DEST, [AUXR]
       Where the value in DEST will be the result returned from the
       built-in.
  
   -- Built-in Function: void __builtin_arc_mul64 (int A, int B)
!      Only available with `-mmul64'.  Generates:
            mul64  A, B
  
   -- Built-in Function: void __builtin_arc_mulu64 (unsigned int A,
            unsigned int B)
!      Only available with `-mmul64'.  Generates:
            mulu64  A, B
  
   -- Built-in Function: void __builtin_arc_nop (void)
--- 36626,36644 ----
            flag  A
  
   -- Built-in Function: unsigned int __builtin_arc_lr (unsigned int AUXR)
!      The operand, AUXV, is the address of an auxiliary register and must
!      be a compile time constant.  Generates:
            lr  DEST, [AUXR]
       Where the value in DEST will be the result returned from the
       built-in.
  
   -- Built-in Function: void __builtin_arc_mul64 (int A, int B)
!      Only available with '-mmul64'.  Generates:
            mul64  A, B
  
   -- Built-in Function: void __builtin_arc_mulu64 (unsigned int A,
            unsigned int B)
!      Only available with '-mmul64'.  Generates:
            mulu64  A, B
  
   -- Built-in Function: void __builtin_arc_nop (void)
*************** generated.
*** 37013,37027 ****
            nop
  
   -- Built-in Function: int __builtin_arc_norm (int SRC)
!      Only valid if the `norm' instruction is available through the
!      `-mnorm' option or by default with `-mcpu=ARC700'.  Generates:
            norm  DEST, SRC
       Where the value in DEST will be the result returned from the
       built-in.
  
   -- Built-in Function: short int __builtin_arc_normw (short int SRC)
!      Only valid if the `normw' instruction is available through the
!      `-mnorm' option or by default with `-mcpu=ARC700'.  Generates:
            normw  DEST, SRC
       Where the value in DEST will be the result returned from the
       built-in.
--- 36646,36660 ----
            nop
  
   -- Built-in Function: int __builtin_arc_norm (int SRC)
!      Only valid if the 'norm' instruction is available through the
!      '-mnorm' option or by default with '-mcpu=ARC700'.  Generates:
            norm  DEST, SRC
       Where the value in DEST will be the result returned from the
       built-in.
  
   -- Built-in Function: short int __builtin_arc_normw (short int SRC)
!      Only valid if the 'normw' instruction is available through the
!      '-mnorm' option or by default with '-mcpu=ARC700'.  Generates:
            normw  DEST, SRC
       Where the value in DEST will be the result returned from the
       built-in.
*************** generated.
*** 37042,37048 ****
            sr  AUXR, [VAL]
  
   -- Built-in Function: int __builtin_arc_swap (int SRC)
!      Only valid with `-mswap'.  Generates:
            swap  DEST, SRC
       Where the value in DEST will be the result returned from the
       built-in.
--- 36675,36681 ----
            sr  AUXR, [VAL]
  
   -- Built-in Function: int __builtin_arc_swap (int SRC)
!      Only valid with '-mswap'.  Generates:
            swap  DEST, SRC
       Where the value in DEST will be the result returned from the
       built-in.
*************** generated.
*** 37052,37072 ****
            swi
  
   -- Built-in Function: void __builtin_arc_sync (void)
!      Only available with `-mcpu=ARC700'.  Generates:
            sync
  
   -- Built-in Function: void __builtin_arc_trap_s (unsigned int C)
!      Only available with `-mcpu=ARC700'.  Generates:
            trap_s  C
  
   -- Built-in Function: void __builtin_arc_unimp_s (void)
!      Only available with `-mcpu=ARC700'.  Generates:
            unimp_s
  
!  The instructions generated by the following builtins are not
! considered as candidates for scheduling.  They are not moved around by
! the compiler during scheduling, and thus can be expected to appear
! where they are put in the C code:
       __builtin_arc_brk()
       __builtin_arc_core_read()
       __builtin_arc_core_write()
--- 36685,36705 ----
            swi
  
   -- Built-in Function: void __builtin_arc_sync (void)
!      Only available with '-mcpu=ARC700'.  Generates:
            sync
  
   -- Built-in Function: void __builtin_arc_trap_s (unsigned int C)
!      Only available with '-mcpu=ARC700'.  Generates:
            trap_s  C
  
   -- Built-in Function: void __builtin_arc_unimp_s (void)
!      Only available with '-mcpu=ARC700'.  Generates:
            unimp_s
  
!  The instructions generated by the following builtins are not considered
! as candidates for scheduling.  They are not moved around by the compiler
! during scheduling, and thus can be expected to appear where they are put
! in the C code:
       __builtin_arc_brk()
       __builtin_arc_core_read()
       __builtin_arc_core_write()
*************** File: gcc.info,  Node: ARC SIMD Built-in
*** 37084,37111 ****
  
  SIMD builtins provided by the compiler can be used to generate the
  vector instructions.  This section describes the available builtins and
! their usage in programs.  With the `-msimd' option, the compiler
  provides 128-bit vector types, which can be specified using the
! `vector_size' attribute.  The header file `arc-simd.h' can be included
  to use the following predefined types:
       typedef int __v4si   __attribute__((vector_size(16)));
       typedef short __v8hi __attribute__((vector_size(16)));
  
   These types can be used to define 128-bit variables.  The built-in
! functions listed in the following section can be used on these
! variables to generate the vector operations.
  
!  For all builtins, `__builtin_arc_SOMEINSN', the header file
! `arc-simd.h' also provides equivalent macros called `_SOMEINSN' that
! can be used for programming ease and improved readability.  The
! following macros for DMA control are also provided:
       #define _setup_dma_in_channel_reg _vdiwr
       #define _setup_dma_out_channel_reg _vdowr
  
!  The following is a complete list of all the SIMD built-ins provided
! for ARC, grouped by calling signature.
  
!  The following take two `__v8hi' arguments and return a `__v8hi' result:
       __v8hi __builtin_arc_vaddaw (__v8hi, __v8hi)
       __v8hi __builtin_arc_vaddw (__v8hi, __v8hi)
       __v8hi __builtin_arc_vand (__v8hi, __v8hi)
--- 36717,36744 ----
  
  SIMD builtins provided by the compiler can be used to generate the
  vector instructions.  This section describes the available builtins and
! their usage in programs.  With the '-msimd' option, the compiler
  provides 128-bit vector types, which can be specified using the
! 'vector_size' attribute.  The header file 'arc-simd.h' can be included
  to use the following predefined types:
       typedef int __v4si   __attribute__((vector_size(16)));
       typedef short __v8hi __attribute__((vector_size(16)));
  
   These types can be used to define 128-bit variables.  The built-in
! functions listed in the following section can be used on these variables
! to generate the vector operations.
  
!  For all builtins, '__builtin_arc_SOMEINSN', the header file
! 'arc-simd.h' also provides equivalent macros called '_SOMEINSN' that can
! be used for programming ease and improved readability.  The following
! macros for DMA control are also provided:
       #define _setup_dma_in_channel_reg _vdiwr
       #define _setup_dma_out_channel_reg _vdowr
  
!  The following is a complete list of all the SIMD built-ins provided for
! ARC, grouped by calling signature.
  
!  The following take two '__v8hi' arguments and return a '__v8hi' result:
       __v8hi __builtin_arc_vaddaw (__v8hi, __v8hi)
       __v8hi __builtin_arc_vaddw (__v8hi, __v8hi)
       __v8hi __builtin_arc_vand (__v8hi, __v8hi)
*************** for ARC, grouped by calling signature.
*** 37155,37162 ****
       __v8hi __builtin_arc_vxor (__v8hi, __v8hi)
       __v8hi __builtin_arc_vxoraw (__v8hi, __v8hi)
  
!  The following take one `__v8hi' and one `int' argument and return a
! `__v8hi' result:
  
       __v8hi __builtin_arc_vbaddw (__v8hi, int)
       __v8hi __builtin_arc_vbmaxw (__v8hi, int)
--- 36788,36795 ----
       __v8hi __builtin_arc_vxor (__v8hi, __v8hi)
       __v8hi __builtin_arc_vxoraw (__v8hi, __v8hi)
  
!  The following take one '__v8hi' and one 'int' argument and return a
! '__v8hi' result:
  
       __v8hi __builtin_arc_vbaddw (__v8hi, int)
       __v8hi __builtin_arc_vbmaxw (__v8hi, int)
*************** for ARC, grouped by calling signature.
*** 37167,37181 ****
       __v8hi __builtin_arc_vbrsubw (__v8hi, int)
       __v8hi __builtin_arc_vbsubw (__v8hi, int)
  
!  The following take one `__v8hi' argument and one `int' argument which
  must be a 3-bit compile time constant indicating a register number
! I0-I7.  They return a `__v8hi' result.
       __v8hi __builtin_arc_vasrw (__v8hi, const int)
       __v8hi __builtin_arc_vsr8 (__v8hi, const int)
       __v8hi __builtin_arc_vsr8aw (__v8hi, const int)
  
!  The following take one `__v8hi' argument and one `int' argument which
! must be a 6-bit compile time constant.  They return a `__v8hi' result.
       __v8hi __builtin_arc_vasrpwbi (__v8hi, const int)
       __v8hi __builtin_arc_vasrrpwbi (__v8hi, const int)
       __v8hi __builtin_arc_vasrrwi (__v8hi, const int)
--- 36800,36814 ----
       __v8hi __builtin_arc_vbrsubw (__v8hi, int)
       __v8hi __builtin_arc_vbsubw (__v8hi, int)
  
!  The following take one '__v8hi' argument and one 'int' argument which
  must be a 3-bit compile time constant indicating a register number
! I0-I7.  They return a '__v8hi' result.
       __v8hi __builtin_arc_vasrw (__v8hi, const int)
       __v8hi __builtin_arc_vsr8 (__v8hi, const int)
       __v8hi __builtin_arc_vsr8aw (__v8hi, const int)
  
!  The following take one '__v8hi' argument and one 'int' argument which
! must be a 6-bit compile time constant.  They return a '__v8hi' result.
       __v8hi __builtin_arc_vasrpwbi (__v8hi, const int)
       __v8hi __builtin_arc_vasrrpwbi (__v8hi, const int)
       __v8hi __builtin_arc_vasrrwi (__v8hi, const int)
*************** must be a 6-bit compile time constant.
*** 37184,37203 ****
       __v8hi __builtin_arc_vsr8awi (__v8hi, const int)
       __v8hi __builtin_arc_vsr8i (__v8hi, const int)
  
!  The following take one `__v8hi' argument and one `int' argument which
! must be a 8-bit compile time constant.  They return a `__v8hi' result.
       __v8hi __builtin_arc_vd6tapf (__v8hi, const int)
       __v8hi __builtin_arc_vmvaw (__v8hi, const int)
       __v8hi __builtin_arc_vmvw (__v8hi, const int)
       __v8hi __builtin_arc_vmvzw (__v8hi, const int)
  
!  The following take two `int' arguments, the second of which which must
! be a 8-bit compile time constant.  They return a `__v8hi' result:
       __v8hi __builtin_arc_vmovaw (int, const int)
       __v8hi __builtin_arc_vmovw (int, const int)
       __v8hi __builtin_arc_vmovzw (int, const int)
  
!  The following take a single `__v8hi' argument and return a `__v8hi'
  result:
       __v8hi __builtin_arc_vabsaw (__v8hi)
       __v8hi __builtin_arc_vabsw (__v8hi)
--- 36817,36836 ----
       __v8hi __builtin_arc_vsr8awi (__v8hi, const int)
       __v8hi __builtin_arc_vsr8i (__v8hi, const int)
  
!  The following take one '__v8hi' argument and one 'int' argument which
! must be a 8-bit compile time constant.  They return a '__v8hi' result.
       __v8hi __builtin_arc_vd6tapf (__v8hi, const int)
       __v8hi __builtin_arc_vmvaw (__v8hi, const int)
       __v8hi __builtin_arc_vmvw (__v8hi, const int)
       __v8hi __builtin_arc_vmvzw (__v8hi, const int)
  
!  The following take two 'int' arguments, the second of which which must
! be a 8-bit compile time constant.  They return a '__v8hi' result:
       __v8hi __builtin_arc_vmovaw (int, const int)
       __v8hi __builtin_arc_vmovw (int, const int)
       __v8hi __builtin_arc_vmovzw (int, const int)
  
!  The following take a single '__v8hi' argument and return a '__v8hi'
  result:
       __v8hi __builtin_arc_vabsaw (__v8hi)
       __v8hi __builtin_arc_vabsw (__v8hi)
*************** result:
*** 37211,37248 ****
       __v8hi __builtin_arc_vupsbaw (__v8hi)
       __v8hi __builtin_arc_vupsbw (__v8hi)
  
!  The following take two `int' arguments and return no result:
       void __builtin_arc_vdirun (int, int)
       void __builtin_arc_vdorun (int, int)
  
!  The following take two `int' arguments and return no result.  The
! first argument must a 3-bit compile time constant indicating one of the
  DR0-DR7 DMA setup channels:
       void __builtin_arc_vdiwr (const int, int)
       void __builtin_arc_vdowr (const int, int)
  
!  The following take an `int' argument and return no result:
       void __builtin_arc_vendrec (int)
       void __builtin_arc_vrec (int)
       void __builtin_arc_vrecrun (int)
       void __builtin_arc_vrun (int)
  
!  The following take a `__v8hi' argument and two `int' arguments and
! return a `__v8hi' result.  The second argument must be a 3-bit compile
  time constants, indicating one the registers I0-I7, and the third
  argument must be an 8-bit compile time constant.
  
   _Note:_ Although the equivalent hardware instructions do not take an
  SIMD register as an operand, these builtins overwrite the relevant bits
! of the `__v8hi' register provided as the first argument with the value
! loaded from the `[Ib, u8]' location in the SDM.
  
       __v8hi __builtin_arc_vld32 (__v8hi, const int, const int)
       __v8hi __builtin_arc_vld32wh (__v8hi, const int, const int)
       __v8hi __builtin_arc_vld32wl (__v8hi, const int, const int)
       __v8hi __builtin_arc_vld64 (__v8hi, const int, const int)
  
!  The following take two `int' arguments and return a `__v8hi' result.
  The first argument must be a 3-bit compile time constants, indicating
  one the registers I0-I7, and the second argument must be an 8-bit
  compile time constant.
--- 36844,36881 ----
       __v8hi __builtin_arc_vupsbaw (__v8hi)
       __v8hi __builtin_arc_vupsbw (__v8hi)
  
!  The following take two 'int' arguments and return no result:
       void __builtin_arc_vdirun (int, int)
       void __builtin_arc_vdorun (int, int)
  
!  The following take two 'int' arguments and return no result.  The first
! argument must a 3-bit compile time constant indicating one of the
  DR0-DR7 DMA setup channels:
       void __builtin_arc_vdiwr (const int, int)
       void __builtin_arc_vdowr (const int, int)
  
!  The following take an 'int' argument and return no result:
       void __builtin_arc_vendrec (int)
       void __builtin_arc_vrec (int)
       void __builtin_arc_vrecrun (int)
       void __builtin_arc_vrun (int)
  
!  The following take a '__v8hi' argument and two 'int' arguments and
! return a '__v8hi' result.  The second argument must be a 3-bit compile
  time constants, indicating one the registers I0-I7, and the third
  argument must be an 8-bit compile time constant.
  
   _Note:_ Although the equivalent hardware instructions do not take an
  SIMD register as an operand, these builtins overwrite the relevant bits
! of the '__v8hi' register provided as the first argument with the value
! loaded from the '[Ib, u8]' location in the SDM.
  
       __v8hi __builtin_arc_vld32 (__v8hi, const int, const int)
       __v8hi __builtin_arc_vld32wh (__v8hi, const int, const int)
       __v8hi __builtin_arc_vld32wl (__v8hi, const int, const int)
       __v8hi __builtin_arc_vld64 (__v8hi, const int, const int)
  
!  The following take two 'int' arguments and return a '__v8hi' result.
  The first argument must be a 3-bit compile time constants, indicating
  one the registers I0-I7, and the second argument must be an 8-bit
  compile time constant.
*************** compile time constant.
*** 37250,37256 ****
       __v8hi __builtin_arc_vld128 (const int, const int)
       __v8hi __builtin_arc_vld64w (const int, const int)
  
!  The following take a `__v8hi' argument and two `int' arguments and
  return no result.  The second argument must be a 3-bit compile time
  constants, indicating one the registers I0-I7, and the third argument
  must be an 8-bit compile time constant.
--- 36883,36889 ----
       __v8hi __builtin_arc_vld128 (const int, const int)
       __v8hi __builtin_arc_vld64w (const int, const int)
  
!  The following take a '__v8hi' argument and two 'int' arguments and
  return no result.  The second argument must be a 3-bit compile time
  constants, indicating one the registers I0-I7, and the third argument
  must be an 8-bit compile time constant.
*************** must be an 8-bit compile time constant.
*** 37258,37264 ****
       void __builtin_arc_vst128 (__v8hi, const int, const int)
       void __builtin_arc_vst64 (__v8hi, const int, const int)
  
!  The following take a `__v8hi' argument and three `int' arguments and
  return no result.  The second argument must be a 3-bit compile-time
  constant, identifying the 16-bit sub-register to be stored, the third
  argument must be a 3-bit compile time constants, indicating one the
--- 36891,36897 ----
       void __builtin_arc_vst128 (__v8hi, const int, const int)
       void __builtin_arc_vst64 (__v8hi, const int, const int)
  
!  The following take a '__v8hi' argument and three 'int' arguments and
  return no result.  The second argument must be a 3-bit compile-time
  constant, identifying the 16-bit sub-register to be stored, the third
  argument must be a 3-bit compile time constants, indicating one the
*************** File: gcc.info,  Node: ARM iWMMXt Built-
*** 37275,37281 ****
  ------------------------------------
  
  These built-in functions are available for the ARM family of processors
! when the `-mcpu=iwmmxt' switch is used:
  
       typedef int v2si __attribute__ ((vector_size (8)));
       typedef short v4hi __attribute__ ((vector_size (8)));
--- 36908,36914 ----
  ------------------------------------
  
  These built-in functions are available for the ARM family of processors
! when the '-mcpu=iwmmxt' switch is used:
  
       typedef int v2si __attribute__ ((vector_size (8)));
       typedef short v4hi __attribute__ ((vector_size (8)));
*************** File: gcc.info,  Node: ARM C Language Ex
*** 37430,37449 ****
  
  GCC implements extensions for C as described in the ARM C Language
  Extensions (ACLE) specification, which can be found at
! `http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053c/IHI0053C_acle_2_0.pdf'.
  
   As a part of ACLE, GCC implements extensions for Advanced SIMD as
  described in the ARM C Language Extensions Specification.  The complete
  list of Advanced SIMD intrinsics can be found at
! `http://infocenter.arm.com/help/topic/com.arm.doc.ihi0073a/IHI0073A_arm_neon_intrinsics_ref.pdf'.
  The built-in intrinsics for the Advanced SIMD extension are available
  when NEON is enabled.
  
   Currently, ARM and AArch64 back ends do not support ACLE 2.0 fully.
! Both back ends support CRC32 intrinsics from `arm_acle.h'.  The ARM
! back end's 16-bit floating-point Advanced SIMD intrinsics currently
! comply to ACLE v1.1.  AArch64's back end does not have support for
! 16-bit floating point Advanced SIMD intrinsics yet.
  
   See *note ARM Options:: and *note AArch64 Options:: for more
  information on the availability of extensions.
--- 37063,37082 ----
  
  GCC implements extensions for C as described in the ARM C Language
  Extensions (ACLE) specification, which can be found at
! <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053c/IHI0053C_acle_2_0.pdf>.
  
   As a part of ACLE, GCC implements extensions for Advanced SIMD as
  described in the ARM C Language Extensions Specification.  The complete
  list of Advanced SIMD intrinsics can be found at
! <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0073a/IHI0073A_arm_neon_intrinsics_ref.pdf>.
  The built-in intrinsics for the Advanced SIMD extension are available
  when NEON is enabled.
  
   Currently, ARM and AArch64 back ends do not support ACLE 2.0 fully.
! Both back ends support CRC32 intrinsics from 'arm_acle.h'.  The ARM back
! end's 16-bit floating-point Advanced SIMD intrinsics currently comply to
! ACLE v1.1.  AArch64's back end does not have support for 16-bit floating
! point Advanced SIMD intrinsics yet.
  
   See *note ARM Options:: and *note AArch64 Options:: for more
  information on the availability of extensions.
*************** File: gcc.info,  Node: AVR Built-in Func
*** 37466,37480 ****
  6.59.9 AVR Built-in Functions
  -----------------------------
  
! For each built-in function for AVR, there is an equally named,
! uppercase built-in macro defined. That way users can easily query if or
! if not a specific built-in is implemented or not. For example, if
! `__builtin_avr_nop' is available the macro `__BUILTIN_AVR_NOP' is
! defined to `1' and undefined otherwise.
  
   The following built-in functions map to the respective machine
! instruction, i.e. `nop', `sei', `cli', `sleep', `wdr', `swap', `fmul',
! `fmuls' resp. `fmulsu'. The three `fmul*' built-ins are implemented as
  library call if no hardware multiplier is available.
  
       void __builtin_avr_nop (void)
--- 37099,37113 ----
  6.59.9 AVR Built-in Functions
  -----------------------------
  
! For each built-in function for AVR, there is an equally named, uppercase
! built-in macro defined.  That way users can easily query if or if not a
! specific built-in is implemented or not.  For example, if
! '__builtin_avr_nop' is available the macro '__BUILTIN_AVR_NOP' is
! defined to '1' and undefined otherwise.
  
   The following built-in functions map to the respective machine
! instruction, i.e. 'nop', 'sei', 'cli', 'sleep', 'wdr', 'swap', 'fmul',
! 'fmuls' resp.  'fmulsu'.  The three 'fmul*' built-ins are implemented as
  library call if no hardware multiplier is available.
  
       void __builtin_avr_nop (void)
*************** library call if no hardware multiplier i
*** 37491,37524 ****
  implements
       void __builtin_avr_delay_cycles (unsigned long ticks)
  
! `ticks' is the number of ticks to delay execution. Note that this
  built-in does not take into account the effect of interrupts that might
! increase delay time. `ticks' must be a compile-time integer constant;
  delays with a variable number of cycles are not supported.
  
       char __builtin_avr_flash_segment (const __memx void*)
  
  This built-in takes a byte address to the 24-bit *note address space:
! AVR Named Address Spaces. `__memx' and returns the number of the flash
! segment (the 64 KiB chunk) where the address points to.  Counting
! starts at `0'.  If the address does not point to flash memory, return
! `-1'.
  
       unsigned char __builtin_avr_insert_bits (unsigned long map, unsigned char bits, unsigned char val)
  
! Insert bits from BITS into VAL and return the resulting value. The
  nibbles of MAP determine how the insertion is performed: Let X be the
  N-th nibble of MAP
!   1. If X is `0xf', then the N-th bit of VAL is returned unaltered.
  
    2. If X is in the range 0...7, then the N-th result bit is set to the
       X-th bit of BITS
  
!   3. If X is in the range 8...`0xe', then the N-th result bit is
       undefined.
  
  One typical use case for this built-in is adjusting input and output
! values to non-contiguous port layouts. Some examples:
  
       // same as val, bits is unused
       __builtin_avr_insert_bits (0xffffffff, bits, val)
--- 37124,37156 ----
  implements
       void __builtin_avr_delay_cycles (unsigned long ticks)
  
! 'ticks' is the number of ticks to delay execution.  Note that this
  built-in does not take into account the effect of interrupts that might
! increase delay time.  'ticks' must be a compile-time integer constant;
  delays with a variable number of cycles are not supported.
  
       char __builtin_avr_flash_segment (const __memx void*)
  
  This built-in takes a byte address to the 24-bit *note address space:
! AVR Named Address Spaces. '__memx' and returns the number of the flash
! segment (the 64 KiB chunk) where the address points to.  Counting starts
! at '0'.  If the address does not point to flash memory, return '-1'.
  
       unsigned char __builtin_avr_insert_bits (unsigned long map, unsigned char bits, unsigned char val)
  
! Insert bits from BITS into VAL and return the resulting value.  The
  nibbles of MAP determine how the insertion is performed: Let X be the
  N-th nibble of MAP
!   1. If X is '0xf', then the N-th bit of VAL is returned unaltered.
  
    2. If X is in the range 0...7, then the N-th result bit is set to the
       X-th bit of BITS
  
!   3. If X is in the range 8...'0xe', then the N-th result bit is
       undefined.
  
  One typical use case for this built-in is adjusting input and output
! values to non-contiguous port layouts.  Some examples:
  
       // same as val, bits is unused
       __builtin_avr_insert_bits (0xffffffff, bits, val)
*************** File: gcc.info,  Node: Blackfin Built-in
*** 37543,37549 ****
  -----------------------------------
  
  Currently, there are two Blackfin-specific built-in functions.  These
! are used for generating `CSYNC' and `SSYNC' machine insns without using
  inline assembly; by using these built-in functions the compiler can
  automatically add workarounds for hardware errata involving these
  instructions.  These functions are named as follows:
--- 37175,37181 ----
  -----------------------------------
  
  Currently, there are two Blackfin-specific built-in functions.  These
! are used for generating 'CSYNC' and 'SSYNC' machine insns without using
  inline assembly; by using these built-in functions the compiler can
  automatically add workarounds for hardware errata involving these
  instructions.  These functions are named as follows:
*************** File: gcc.info,  Node: FR-V Built-in Fun
*** 37558,37571 ****
  -------------------------------
  
  GCC provides many FR-V-specific built-in functions.  In general, these
! functions are intended to be compatible with those described by `FR-V
! Family, Softune C/C++ Compiler Manual (V6), Fujitsu Semiconductor'.
! The two exceptions are `__MDUNPACKH' and `__MBTOHE', the GCC forms of
! which pass 128-bit values by pointer rather than by value.
  
!  Most of the functions are named after specific FR-V instructions.
! Such functions are said to be "directly mapped" and are summarized here
! in tabular form.
  
  * Menu:
  
--- 37190,37203 ----
  -------------------------------
  
  GCC provides many FR-V-specific built-in functions.  In general, these
! functions are intended to be compatible with those described by 'FR-V
! Family, Softune C/C++ Compiler Manual (V6), Fujitsu Semiconductor'.  The
! two exceptions are '__MDUNPACKH' and '__MBTOHE', the GCC forms of which
! pass 128-bit values by pointer rather than by value.
  
!  Most of the functions are named after specific FR-V instructions.  Such
! functions are said to be "directly mapped" and are summarized here in
! tabular form.
  
  * Menu:
  
*************** In order to make this classification cle
*** 37587,37616 ****
  and return values are given the following pseudo types:
  
  Pseudo type    Real C type            Constant?   Description
! `uh'           `unsigned short'       No          an unsigned halfword
! `uw1'          `unsigned int'         No          an unsigned word
! `sw1'          `int'                  No          a signed word
! `uw2'          `unsigned long long'   No          an unsigned doubleword
! `sw2'          `long long'            No          a signed doubleword
! `const'        `int'                  Yes         an integer constant
! `acc'          `int'                  Yes         an ACC register number
! `iacc'         `int'                  Yes         an IACC register number
  
   These pseudo types are not defined by GCC, they are simply a notational
  convenience used in this manual.
  
!  Arguments of type `uh', `uw1', `sw1', `uw2' and `sw2' are evaluated at
  run time.  They correspond to register operands in the underlying FR-V
  instructions.
  
!  `const' arguments represent immediate operands in the underlying FR-V
  instructions.  They must be compile-time constants.
  
!  `acc' arguments are evaluated at compile time and specify the number
! of an accumulator register.  For example, an `acc' argument of 2
! selects the ACC2 register.
  
!  `iacc' arguments are similar to `acc' arguments but specify the number
  of an IACC register.  See *note Other Built-in Functions:: for more
  details.
  
--- 37219,37248 ----
  and return values are given the following pseudo types:
  
  Pseudo type    Real C type            Constant?   Description
! 'uh'           'unsigned short'       No          an unsigned halfword
! 'uw1'          'unsigned int'         No          an unsigned word
! 'sw1'          'int'                  No          a signed word
! 'uw2'          'unsigned long long'   No          an unsigned doubleword
! 'sw2'          'long long'            No          a signed doubleword
! 'const'        'int'                  Yes         an integer constant
! 'acc'          'int'                  Yes         an ACC register number
! 'iacc'         'int'                  Yes         an IACC register number
  
   These pseudo types are not defined by GCC, they are simply a notational
  convenience used in this manual.
  
!  Arguments of type 'uh', 'uw1', 'sw1', 'uw2' and 'sw2' are evaluated at
  run time.  They correspond to register operands in the underlying FR-V
  instructions.
  
!  'const' arguments represent immediate operands in the underlying FR-V
  instructions.  They must be compile-time constants.
  
!  'acc' arguments are evaluated at compile time and specify the number of
! an accumulator register.  For example, an 'acc' argument of 2 selects
! the ACC2 register.
  
!  'iacc' arguments are similar to 'acc' arguments but specify the number
  of an IACC register.  See *note Other Built-in Functions:: for more
  details.
  
*************** File: gcc.info,  Node: Directly-mapped I
*** 37623,37638 ****
  The functions listed below map directly to FR-V I-type instructions.
  
  Function prototype               Example usage           Assembly output
! `sw1 __ADDSS (sw1, sw1)'         `C = __ADDSS (A, B)'    `ADDSS A,B,C'
! `sw1 __SCAN (sw1, sw1)'          `C = __SCAN (A, B)'     `SCAN A,B,C'
! `sw1 __SCUTSS (sw1)'             `B = __SCUTSS (A)'      `SCUTSS A,B'
! `sw1 __SLASS (sw1, sw1)'         `C = __SLASS (A, B)'    `SLASS A,B,C'
! `void __SMASS (sw1, sw1)'        `__SMASS (A, B)'        `SMASS A,B'
! `void __SMSSS (sw1, sw1)'        `__SMSSS (A, B)'        `SMSSS A,B'
! `void __SMU (sw1, sw1)'          `__SMU (A, B)'          `SMU A,B'
! `sw2 __SMUL (sw1, sw1)'          `C = __SMUL (A, B)'     `SMUL A,B,C'
! `sw1 __SUBSS (sw1, sw1)'         `C = __SUBSS (A, B)'    `SUBSS A,B,C'
! `uw2 __UMUL (uw1, uw1)'          `C = __UMUL (A, B)'     `UMUL A,B,C'
  
  
  File: gcc.info,  Node: Directly-mapped Media Functions,  Next: Raw read/write Functions,  Prev: Directly-mapped Integer Functions,  Up: FR-V Built-in Functions
--- 37255,37270 ----
  The functions listed below map directly to FR-V I-type instructions.
  
  Function prototype               Example usage           Assembly output
! 'sw1 __ADDSS (sw1, sw1)'         'C = __ADDSS (A, B)'    'ADDSS A,B,C'
! 'sw1 __SCAN (sw1, sw1)'          'C = __SCAN (A, B)'     'SCAN A,B,C'
! 'sw1 __SCUTSS (sw1)'             'B = __SCUTSS (A)'      'SCUTSS A,B'
! 'sw1 __SLASS (sw1, sw1)'         'C = __SLASS (A, B)'    'SLASS A,B,C'
! 'void __SMASS (sw1, sw1)'        '__SMASS (A, B)'        'SMASS A,B'
! 'void __SMSSS (sw1, sw1)'        '__SMSSS (A, B)'        'SMSSS A,B'
! 'void __SMU (sw1, sw1)'          '__SMU (A, B)'          'SMU A,B'
! 'sw2 __SMUL (sw1, sw1)'          'C = __SMUL (A, B)'     'SMUL A,B,C'
! 'sw1 __SUBSS (sw1, sw1)'         'C = __SUBSS (A, B)'    'SUBSS A,B,C'
! 'uw2 __UMUL (uw1, uw1)'          'C = __UMUL (A, B)'     'UMUL A,B,C'
  
  
  File: gcc.info,  Node: Directly-mapped Media Functions,  Next: Raw read/write Functions,  Prev: Directly-mapped Integer Functions,  Up: FR-V Built-in Functions
*************** File: gcc.info,  Node: Directly-mapped M
*** 37643,37741 ****
  The functions listed below map directly to FR-V M-type instructions.
  
  Function prototype               Example usage           Assembly output
! `uw1 __MABSHS (sw1)'             `B = __MABSHS (A)'      `MABSHS A,B'
! `void __MADDACCS (acc, acc)'     `__MADDACCS (B, A)'     `MADDACCS A,B'
! `sw1 __MADDHSS (sw1, sw1)'       `C = __MADDHSS (A, B)'  `MADDHSS A,B,C'
! `uw1 __MADDHUS (uw1, uw1)'       `C = __MADDHUS (A, B)'  `MADDHUS A,B,C'
! `uw1 __MAND (uw1, uw1)'          `C = __MAND (A, B)'     `MAND A,B,C'
! `void __MASACCS (acc, acc)'      `__MASACCS (B, A)'      `MASACCS A,B'
! `uw1 __MAVEH (uw1, uw1)'         `C = __MAVEH (A, B)'    `MAVEH A,B,C'
! `uw2 __MBTOH (uw1)'              `B = __MBTOH (A)'       `MBTOH A,B'
! `void __MBTOHE (uw1 *, uw1)'     `__MBTOHE (&B, A)'      `MBTOHE A,B'
! `void __MCLRACC (acc)'           `__MCLRACC (A)'         `MCLRACC A'
! `void __MCLRACCA (void)'         `__MCLRACCA ()'         `MCLRACCA'
! `uw1 __Mcop1 (uw1, uw1)'         `C = __Mcop1 (A, B)'    `Mcop1 A,B,C'
! `uw1 __Mcop2 (uw1, uw1)'         `C = __Mcop2 (A, B)'    `Mcop2 A,B,C'
! `uw1 __MCPLHI (uw2, const)'      `C = __MCPLHI (A, B)'   `MCPLHI A,#B,C'
! `uw1 __MCPLI (uw2, const)'       `C = __MCPLI (A, B)'    `MCPLI A,#B,C'
! `void __MCPXIS (acc, sw1, sw1)'  `__MCPXIS (C, A, B)'    `MCPXIS A,B,C'
! `void __MCPXIU (acc, uw1, uw1)'  `__MCPXIU (C, A, B)'    `MCPXIU A,B,C'
! `void __MCPXRS (acc, sw1, sw1)'  `__MCPXRS (C, A, B)'    `MCPXRS A,B,C'
! `void __MCPXRU (acc, uw1, uw1)'  `__MCPXRU (C, A, B)'    `MCPXRU A,B,C'
! `uw1 __MCUT (acc, uw1)'          `C = __MCUT (A, B)'     `MCUT A,B,C'
! `uw1 __MCUTSS (acc, sw1)'        `C = __MCUTSS (A, B)'   `MCUTSS A,B,C'
! `void __MDADDACCS (acc, acc)'    `__MDADDACCS (B, A)'    `MDADDACCS A,B'
! `void __MDASACCS (acc, acc)'     `__MDASACCS (B, A)'     `MDASACCS A,B'
! `uw2 __MDCUTSSI (acc, const)'    `C = __MDCUTSSI (A, B)' `MDCUTSSI A,#B,C'
! `uw2 __MDPACKH (uw2, uw2)'       `C = __MDPACKH (A, B)'  `MDPACKH A,B,C'
! `uw2 __MDROTLI (uw2, const)'     `C = __MDROTLI (A, B)'  `MDROTLI A,#B,C'
! `void __MDSUBACCS (acc, acc)'    `__MDSUBACCS (B, A)'    `MDSUBACCS A,B'
! `void __MDUNPACKH (uw1 *, uw2)'  `__MDUNPACKH (&B, A)'   `MDUNPACKH A,B'
! `uw2 __MEXPDHD (uw1, const)'     `C = __MEXPDHD (A, B)'  `MEXPDHD A,#B,C'
! `uw1 __MEXPDHW (uw1, const)'     `C = __MEXPDHW (A, B)'  `MEXPDHW A,#B,C'
! `uw1 __MHDSETH (uw1, const)'     `C = __MHDSETH (A, B)'  `MHDSETH A,#B,C'
! `sw1 __MHDSETS (const)'          `B = __MHDSETS (A)'     `MHDSETS #A,B'
! `uw1 __MHSETHIH (uw1, const)'    `B = __MHSETHIH (B, A)' `MHSETHIH #A,B'
! `sw1 __MHSETHIS (sw1, const)'    `B = __MHSETHIS (B, A)' `MHSETHIS #A,B'
! `uw1 __MHSETLOH (uw1, const)'    `B = __MHSETLOH (B, A)' `MHSETLOH #A,B'
! `sw1 __MHSETLOS (sw1, const)'    `B = __MHSETLOS (B, A)' `MHSETLOS #A,B'
! `uw1 __MHTOB (uw2)'              `B = __MHTOB (A)'       `MHTOB A,B'
! `void __MMACHS (acc, sw1, sw1)'  `__MMACHS (C, A, B)'    `MMACHS A,B,C'
! `void __MMACHU (acc, uw1, uw1)'  `__MMACHU (C, A, B)'    `MMACHU A,B,C'
! `void __MMRDHS (acc, sw1, sw1)'  `__MMRDHS (C, A, B)'    `MMRDHS A,B,C'
! `void __MMRDHU (acc, uw1, uw1)'  `__MMRDHU (C, A, B)'    `MMRDHU A,B,C'
! `void __MMULHS (acc, sw1, sw1)'  `__MMULHS (C, A, B)'    `MMULHS A,B,C'
! `void __MMULHU (acc, uw1, uw1)'  `__MMULHU (C, A, B)'    `MMULHU A,B,C'
! `void __MMULXHS (acc, sw1, sw1)' `__MMULXHS (C, A, B)'   `MMULXHS A,B,C'
! `void __MMULXHU (acc, uw1, uw1)' `__MMULXHU (C, A, B)'   `MMULXHU A,B,C'
! `uw1 __MNOT (uw1)'               `B = __MNOT (A)'        `MNOT A,B'
! `uw1 __MOR (uw1, uw1)'           `C = __MOR (A, B)'      `MOR A,B,C'
! `uw1 __MPACKH (uh, uh)'          `C = __MPACKH (A, B)'   `MPACKH A,B,C'
! `sw2 __MQADDHSS (sw2, sw2)'      `C = __MQADDHSS (A, B)' `MQADDHSS A,B,C'
! `uw2 __MQADDHUS (uw2, uw2)'      `C = __MQADDHUS (A, B)' `MQADDHUS A,B,C'
! `void __MQCPXIS (acc, sw2, sw2)' `__MQCPXIS (C, A, B)'   `MQCPXIS A,B,C'
! `void __MQCPXIU (acc, uw2, uw2)' `__MQCPXIU (C, A, B)'   `MQCPXIU A,B,C'
! `void __MQCPXRS (acc, sw2, sw2)' `__MQCPXRS (C, A, B)'   `MQCPXRS A,B,C'
! `void __MQCPXRU (acc, uw2, uw2)' `__MQCPXRU (C, A, B)'   `MQCPXRU A,B,C'
! `sw2 __MQLCLRHS (sw2, sw2)'      `C = __MQLCLRHS (A, B)' `MQLCLRHS A,B,C'
! `sw2 __MQLMTHS (sw2, sw2)'       `C = __MQLMTHS (A, B)'  `MQLMTHS A,B,C'
! `void __MQMACHS (acc, sw2, sw2)' `__MQMACHS (C, A, B)'   `MQMACHS A,B,C'
! `void __MQMACHU (acc, uw2, uw2)' `__MQMACHU (C, A, B)'   `MQMACHU A,B,C'
! `void __MQMACXHS (acc, sw2,      `__MQMACXHS (C, A, B)'  `MQMACXHS A,B,C'
! sw2)'                                                    
! `void __MQMULHS (acc, sw2, sw2)' `__MQMULHS (C, A, B)'   `MQMULHS A,B,C'
! `void __MQMULHU (acc, uw2, uw2)' `__MQMULHU (C, A, B)'   `MQMULHU A,B,C'
! `void __MQMULXHS (acc, sw2,      `__MQMULXHS (C, A, B)'  `MQMULXHS A,B,C'
! sw2)'                                                    
! `void __MQMULXHU (acc, uw2,      `__MQMULXHU (C, A, B)'  `MQMULXHU A,B,C'
! uw2)'                                                    
! `sw2 __MQSATHS (sw2, sw2)'       `C = __MQSATHS (A, B)'  `MQSATHS A,B,C'
! `uw2 __MQSLLHI (uw2, int)'       `C = __MQSLLHI (A, B)'  `MQSLLHI A,B,C'
! `sw2 __MQSRAHI (sw2, int)'       `C = __MQSRAHI (A, B)'  `MQSRAHI A,B,C'
! `sw2 __MQSUBHSS (sw2, sw2)'      `C = __MQSUBHSS (A, B)' `MQSUBHSS A,B,C'
! `uw2 __MQSUBHUS (uw2, uw2)'      `C = __MQSUBHUS (A, B)' `MQSUBHUS A,B,C'
! `void __MQXMACHS (acc, sw2,      `__MQXMACHS (C, A, B)'  `MQXMACHS A,B,C'
! sw2)'                                                    
! `void __MQXMACXHS (acc, sw2,     `__MQXMACXHS (C, A, B)' `MQXMACXHS A,B,C'
! sw2)'                                                    
! `uw1 __MRDACC (acc)'             `B = __MRDACC (A)'      `MRDACC A,B'
! `uw1 __MRDACCG (acc)'            `B = __MRDACCG (A)'     `MRDACCG A,B'
! `uw1 __MROTLI (uw1, const)'      `C = __MROTLI (A, B)'   `MROTLI A,#B,C'
! `uw1 __MROTRI (uw1, const)'      `C = __MROTRI (A, B)'   `MROTRI A,#B,C'
! `sw1 __MSATHS (sw1, sw1)'        `C = __MSATHS (A, B)'   `MSATHS A,B,C'
! `uw1 __MSATHU (uw1, uw1)'        `C = __MSATHU (A, B)'   `MSATHU A,B,C'
! `uw1 __MSLLHI (uw1, const)'      `C = __MSLLHI (A, B)'   `MSLLHI A,#B,C'
! `sw1 __MSRAHI (sw1, const)'      `C = __MSRAHI (A, B)'   `MSRAHI A,#B,C'
! `uw1 __MSRLHI (uw1, const)'      `C = __MSRLHI (A, B)'   `MSRLHI A,#B,C'
! `void __MSUBACCS (acc, acc)'     `__MSUBACCS (B, A)'     `MSUBACCS A,B'
! `sw1 __MSUBHSS (sw1, sw1)'       `C = __MSUBHSS (A, B)'  `MSUBHSS A,B,C'
! `uw1 __MSUBHUS (uw1, uw1)'       `C = __MSUBHUS (A, B)'  `MSUBHUS A,B,C'
! `void __MTRAP (void)'            `__MTRAP ()'            `MTRAP'
! `uw2 __MUNPACKH (uw1)'           `B = __MUNPACKH (A)'    `MUNPACKH A,B'
! `uw1 __MWCUT (uw2, uw1)'         `C = __MWCUT (A, B)'    `MWCUT A,B,C'
! `void __MWTACC (acc, uw1)'       `__MWTACC (B, A)'       `MWTACC A,B'
! `void __MWTACCG (acc, uw1)'      `__MWTACCG (B, A)'      `MWTACCG A,B'
! `uw1 __MXOR (uw1, uw1)'          `C = __MXOR (A, B)'     `MXOR A,B,C'
  
  
  File: gcc.info,  Node: Raw read/write Functions,  Next: Other Built-in Functions,  Prev: Directly-mapped Media Functions,  Up: FR-V Built-in Functions
--- 37275,37417 ----
  The functions listed below map directly to FR-V M-type instructions.
  
  Function prototype               Example usage           Assembly output
! 'uw1 __MABSHS (sw1)'             'B = __MABSHS (A)'      'MABSHS A,B'
! 'void __MADDACCS (acc, acc)'     '__MADDACCS (B, A)'     'MADDACCS A,B'
! 'sw1 __MADDHSS (sw1, sw1)'       'C = __MADDHSS (A,      'MADDHSS A,B,C'
!                                  B)'
! 'uw1 __MADDHUS (uw1, uw1)'       'C = __MADDHUS (A,      'MADDHUS A,B,C'
!                                  B)'
! 'uw1 __MAND (uw1, uw1)'          'C = __MAND (A, B)'     'MAND A,B,C'
! 'void __MASACCS (acc, acc)'      '__MASACCS (B, A)'      'MASACCS A,B'
! 'uw1 __MAVEH (uw1, uw1)'         'C = __MAVEH (A, B)'    'MAVEH A,B,C'
! 'uw2 __MBTOH (uw1)'              'B = __MBTOH (A)'       'MBTOH A,B'
! 'void __MBTOHE (uw1 *, uw1)'     '__MBTOHE (&B, A)'      'MBTOHE A,B'
! 'void __MCLRACC (acc)'           '__MCLRACC (A)'         'MCLRACC A'
! 'void __MCLRACCA (void)'         '__MCLRACCA ()'         'MCLRACCA'
! 'uw1 __Mcop1 (uw1, uw1)'         'C = __Mcop1 (A, B)'    'Mcop1 A,B,C'
! 'uw1 __Mcop2 (uw1, uw1)'         'C = __Mcop2 (A, B)'    'Mcop2 A,B,C'
! 'uw1 __MCPLHI (uw2, const)'      'C = __MCPLHI (A, B)'   'MCPLHI A,#B,C'
! 'uw1 __MCPLI (uw2, const)'       'C = __MCPLI (A, B)'    'MCPLI A,#B,C'
! 'void __MCPXIS (acc, sw1,        '__MCPXIS (C, A, B)'    'MCPXIS A,B,C'
! sw1)'
! 'void __MCPXIU (acc, uw1,        '__MCPXIU (C, A, B)'    'MCPXIU A,B,C'
! uw1)'
! 'void __MCPXRS (acc, sw1,        '__MCPXRS (C, A, B)'    'MCPXRS A,B,C'
! sw1)'
! 'void __MCPXRU (acc, uw1,        '__MCPXRU (C, A, B)'    'MCPXRU A,B,C'
! uw1)'
! 'uw1 __MCUT (acc, uw1)'          'C = __MCUT (A, B)'     'MCUT A,B,C'
! 'uw1 __MCUTSS (acc, sw1)'        'C = __MCUTSS (A, B)'   'MCUTSS A,B,C'
! 'void __MDADDACCS (acc, acc)'    '__MDADDACCS (B, A)'    'MDADDACCS A,B'
! 'void __MDASACCS (acc, acc)'     '__MDASACCS (B, A)'     'MDASACCS A,B'
! 'uw2 __MDCUTSSI (acc, const)'    'C = __MDCUTSSI (A,     'MDCUTSSI
!                                  B)'                     A,#B,C'
! 'uw2 __MDPACKH (uw2, uw2)'       'C = __MDPACKH (A,      'MDPACKH A,B,C'
!                                  B)'
! 'uw2 __MDROTLI (uw2, const)'     'C = __MDROTLI (A,      'MDROTLI
!                                  B)'                     A,#B,C'
! 'void __MDSUBACCS (acc, acc)'    '__MDSUBACCS (B, A)'    'MDSUBACCS A,B'
! 'void __MDUNPACKH (uw1 *,        '__MDUNPACKH (&B, A)'   'MDUNPACKH A,B'
! uw2)'
! 'uw2 __MEXPDHD (uw1, const)'     'C = __MEXPDHD (A,      'MEXPDHD
!                                  B)'                     A,#B,C'
! 'uw1 __MEXPDHW (uw1, const)'     'C = __MEXPDHW (A,      'MEXPDHW
!                                  B)'                     A,#B,C'
! 'uw1 __MHDSETH (uw1, const)'     'C = __MHDSETH (A,      'MHDSETH
!                                  B)'                     A,#B,C'
! 'sw1 __MHDSETS (const)'          'B = __MHDSETS (A)'     'MHDSETS #A,B'
! 'uw1 __MHSETHIH (uw1, const)'    'B = __MHSETHIH (B,     'MHSETHIH #A,B'
!                                  A)'
! 'sw1 __MHSETHIS (sw1, const)'    'B = __MHSETHIS (B,     'MHSETHIS #A,B'
!                                  A)'
! 'uw1 __MHSETLOH (uw1, const)'    'B = __MHSETLOH (B,     'MHSETLOH #A,B'
!                                  A)'
! 'sw1 __MHSETLOS (sw1, const)'    'B = __MHSETLOS (B,     'MHSETLOS #A,B'
!                                  A)'
! 'uw1 __MHTOB (uw2)'              'B = __MHTOB (A)'       'MHTOB A,B'
! 'void __MMACHS (acc, sw1,        '__MMACHS (C, A, B)'    'MMACHS A,B,C'
! sw1)'
! 'void __MMACHU (acc, uw1,        '__MMACHU (C, A, B)'    'MMACHU A,B,C'
! uw1)'
! 'void __MMRDHS (acc, sw1,        '__MMRDHS (C, A, B)'    'MMRDHS A,B,C'
! sw1)'
! 'void __MMRDHU (acc, uw1,        '__MMRDHU (C, A, B)'    'MMRDHU A,B,C'
! uw1)'
! 'void __MMULHS (acc, sw1,        '__MMULHS (C, A, B)'    'MMULHS A,B,C'
! sw1)'
! 'void __MMULHU (acc, uw1,        '__MMULHU (C, A, B)'    'MMULHU A,B,C'
! uw1)'
! 'void __MMULXHS (acc, sw1,       '__MMULXHS (C, A, B)'   'MMULXHS A,B,C'
! sw1)'
! 'void __MMULXHU (acc, uw1,       '__MMULXHU (C, A, B)'   'MMULXHU A,B,C'
! uw1)'
! 'uw1 __MNOT (uw1)'               'B = __MNOT (A)'        'MNOT A,B'
! 'uw1 __MOR (uw1, uw1)'           'C = __MOR (A, B)'      'MOR A,B,C'
! 'uw1 __MPACKH (uh, uh)'          'C = __MPACKH (A, B)'   'MPACKH A,B,C'
! 'sw2 __MQADDHSS (sw2, sw2)'      'C = __MQADDHSS (A,     'MQADDHSS
!                                  B)'                     A,B,C'
! 'uw2 __MQADDHUS (uw2, uw2)'      'C = __MQADDHUS (A,     'MQADDHUS
!                                  B)'                     A,B,C'
! 'void __MQCPXIS (acc, sw2,       '__MQCPXIS (C, A, B)'   'MQCPXIS A,B,C'
! sw2)'
! 'void __MQCPXIU (acc, uw2,       '__MQCPXIU (C, A, B)'   'MQCPXIU A,B,C'
! uw2)'
! 'void __MQCPXRS (acc, sw2,       '__MQCPXRS (C, A, B)'   'MQCPXRS A,B,C'
! sw2)'
! 'void __MQCPXRU (acc, uw2,       '__MQCPXRU (C, A, B)'   'MQCPXRU A,B,C'
! uw2)'
! 'sw2 __MQLCLRHS (sw2, sw2)'      'C = __MQLCLRHS (A,     'MQLCLRHS
!                                  B)'                     A,B,C'
! 'sw2 __MQLMTHS (sw2, sw2)'       'C = __MQLMTHS (A,      'MQLMTHS A,B,C'
!                                  B)'
! 'void __MQMACHS (acc, sw2,       '__MQMACHS (C, A, B)'   'MQMACHS A,B,C'
! sw2)'
! 'void __MQMACHU (acc, uw2,       '__MQMACHU (C, A, B)'   'MQMACHU A,B,C'
! uw2)'
! 'void __MQMACXHS (acc, sw2,      '__MQMACXHS (C, A,      'MQMACXHS
! sw2)'                            B)'                     A,B,C'
! 'void __MQMULHS (acc, sw2,       '__MQMULHS (C, A, B)'   'MQMULHS A,B,C'
! sw2)'
! 'void __MQMULHU (acc, uw2,       '__MQMULHU (C, A, B)'   'MQMULHU A,B,C'
! uw2)'
! 'void __MQMULXHS (acc, sw2,      '__MQMULXHS (C, A,      'MQMULXHS
! sw2)'                            B)'                     A,B,C'
! 'void __MQMULXHU (acc, uw2,      '__MQMULXHU (C, A,      'MQMULXHU
! uw2)'                            B)'                     A,B,C'
! 'sw2 __MQSATHS (sw2, sw2)'       'C = __MQSATHS (A,      'MQSATHS A,B,C'
!                                  B)'
! 'uw2 __MQSLLHI (uw2, int)'       'C = __MQSLLHI (A,      'MQSLLHI A,B,C'
!                                  B)'
! 'sw2 __MQSRAHI (sw2, int)'       'C = __MQSRAHI (A,      'MQSRAHI A,B,C'
!                                  B)'
! 'sw2 __MQSUBHSS (sw2, sw2)'      'C = __MQSUBHSS (A,     'MQSUBHSS
!                                  B)'                     A,B,C'
! 'uw2 __MQSUBHUS (uw2, uw2)'      'C = __MQSUBHUS (A,     'MQSUBHUS
!                                  B)'                     A,B,C'
! 'void __MQXMACHS (acc, sw2,      '__MQXMACHS (C, A,      'MQXMACHS
! sw2)'                            B)'                     A,B,C'
! 'void __MQXMACXHS (acc, sw2,     '__MQXMACXHS (C, A,     'MQXMACXHS
! sw2)'                            B)'                     A,B,C'
! 'uw1 __MRDACC (acc)'             'B = __MRDACC (A)'      'MRDACC A,B'
! 'uw1 __MRDACCG (acc)'            'B = __MRDACCG (A)'     'MRDACCG A,B'
! 'uw1 __MROTLI (uw1, const)'      'C = __MROTLI (A, B)'   'MROTLI A,#B,C'
! 'uw1 __MROTRI (uw1, const)'      'C = __MROTRI (A, B)'   'MROTRI A,#B,C'
! 'sw1 __MSATHS (sw1, sw1)'        'C = __MSATHS (A, B)'   'MSATHS A,B,C'
! 'uw1 __MSATHU (uw1, uw1)'        'C = __MSATHU (A, B)'   'MSATHU A,B,C'
! 'uw1 __MSLLHI (uw1, const)'      'C = __MSLLHI (A, B)'   'MSLLHI A,#B,C'
! 'sw1 __MSRAHI (sw1, const)'      'C = __MSRAHI (A, B)'   'MSRAHI A,#B,C'
! 'uw1 __MSRLHI (uw1, const)'      'C = __MSRLHI (A, B)'   'MSRLHI A,#B,C'
! 'void __MSUBACCS (acc, acc)'     '__MSUBACCS (B, A)'     'MSUBACCS A,B'
! 'sw1 __MSUBHSS (sw1, sw1)'       'C = __MSUBHSS (A,      'MSUBHSS A,B,C'
!                                  B)'
! 'uw1 __MSUBHUS (uw1, uw1)'       'C = __MSUBHUS (A,      'MSUBHUS A,B,C'
!                                  B)'
! 'void __MTRAP (void)'            '__MTRAP ()'            'MTRAP'
! 'uw2 __MUNPACKH (uw1)'           'B = __MUNPACKH (A)'    'MUNPACKH A,B'
! 'uw1 __MWCUT (uw2, uw1)'         'C = __MWCUT (A, B)'    'MWCUT A,B,C'
! 'void __MWTACC (acc, uw1)'       '__MWTACC (B, A)'       'MWTACC A,B'
! 'void __MWTACCG (acc, uw1)'      '__MWTACCG (B, A)'      'MWTACCG A,B'
! 'uw1 __MXOR (uw1, uw1)'          'C = __MXOR (A, B)'     'MXOR A,B,C'
  
  
  File: gcc.info,  Node: Raw read/write Functions,  Next: Other Built-in Functions,  Prev: Directly-mapped Media Functions,  Up: FR-V Built-in Functions
*************** File: gcc.info,  Node: Raw read/write Fu
*** 37744,37768 ****
  ..................................
  
  This sections describes built-in functions related to read and write
! instructions to access memory.  These functions generate `membar'
  instructions to flush the I/O load and stores where appropriate, as
  described in Fujitsu's manual described above.
  
! `unsigned char __builtin_read8 (void *DATA)'
! 
! `unsigned short __builtin_read16 (void *DATA)'
! 
! `unsigned long __builtin_read32 (void *DATA)'
! 
! `unsigned long long __builtin_read64 (void *DATA)'
! 
! `void __builtin_write8 (void *DATA, unsigned char DATUM)'
! 
! `void __builtin_write16 (void *DATA, unsigned short DATUM)'
! 
! `void __builtin_write32 (void *DATA, unsigned long DATUM)'
  
! `void __builtin_write64 (void *DATA, unsigned long long DATUM)'
  
  
  File: gcc.info,  Node: Other Built-in Functions,  Prev: Raw read/write Functions,  Up: FR-V Built-in Functions
--- 37420,37438 ----
  ..................................
  
  This sections describes built-in functions related to read and write
! instructions to access memory.  These functions generate 'membar'
  instructions to flush the I/O load and stores where appropriate, as
  described in Fujitsu's manual described above.
  
! 'unsigned char __builtin_read8 (void *DATA)'
! 'unsigned short __builtin_read16 (void *DATA)'
! 'unsigned long __builtin_read32 (void *DATA)'
! 'unsigned long long __builtin_read64 (void *DATA)'
  
! 'void __builtin_write8 (void *DATA, unsigned char DATUM)'
! 'void __builtin_write16 (void *DATA, unsigned short DATUM)'
! 'void __builtin_write32 (void *DATA, unsigned long DATUM)'
! 'void __builtin_write64 (void *DATA, unsigned long long DATUM)'
  
  
  File: gcc.info,  Node: Other Built-in Functions,  Prev: Raw read/write Functions,  Up: FR-V Built-in Functions
*************** File: gcc.info,  Node: Other Built-in Fu
*** 37773,37800 ****
  This section describes built-in functions that are not named after a
  specific FR-V instruction.
  
! `sw2 __IACCreadll (iacc REG)'
       Return the full 64-bit value of IACC0.  The REG argument is
       reserved for future expansion and must be 0.
  
! `sw1 __IACCreadl (iacc REG)'
       Return the value of IACC0H if REG is 0 and IACC0L if REG is 1.
       Other values of REG are rejected as invalid.
  
! `void __IACCsetll (iacc REG, sw2 X)'
       Set the full 64-bit value of IACC0 to X.  The REG argument is
       reserved for future expansion and must be 0.
  
! `void __IACCsetl (iacc REG, sw1 X)'
       Set IACC0H to X if REG is 0 and IACC0L to X if REG is 1.  Other
       values of REG are rejected as invalid.
  
! `void __data_prefetch0 (const void *X)'
!      Use the `dcpl' instruction to load the contents of address X into
       the data cache.
  
! `void __data_prefetch (const void *X)'
!      Use the `nldub' instruction to load the contents of address X into
       the data cache.  The instruction is issued in slot I1.
  
  
--- 37443,37470 ----
  This section describes built-in functions that are not named after a
  specific FR-V instruction.
  
! 'sw2 __IACCreadll (iacc REG)'
       Return the full 64-bit value of IACC0.  The REG argument is
       reserved for future expansion and must be 0.
  
! 'sw1 __IACCreadl (iacc REG)'
       Return the value of IACC0H if REG is 0 and IACC0L if REG is 1.
       Other values of REG are rejected as invalid.
  
! 'void __IACCsetll (iacc REG, sw2 X)'
       Set the full 64-bit value of IACC0 to X.  The REG argument is
       reserved for future expansion and must be 0.
  
! 'void __IACCsetl (iacc REG, sw1 X)'
       Set IACC0H to X if REG is 0 and IACC0L to X if REG is 1.  Other
       values of REG are rejected as invalid.
  
! 'void __data_prefetch0 (const void *X)'
!      Use the 'dcpl' instruction to load the contents of address X into
       the data cache.
  
! 'void __data_prefetch (const void *X)'
!      Use the 'nldub' instruction to load the contents of address X into
       the data cache.  The instruction is issued in slot I1.
  
  
*************** media applications.  It provides instruc
*** 37809,37842 ****
  8-bit/16-bit integer data, Q7, Q15 and Q31 fractional data.
  
   GCC supports MIPS DSP operations using both the generic vector
! extensions (*note Vector Extensions::) and a collection of
! MIPS-specific built-in functions.  Both kinds of support are enabled by
! the `-mdsp' command-line option.
  
   Revision 2 of the ASE was introduced in the second half of 2006.  This
  revision adds extra instructions to the original ASE, but is otherwise
  backwards-compatible with it.  You can select revision 2 using the
! command-line option `-mdspr2'; this option implies `-mdsp'.
  
   The SCOUNT and POS bits of the DSP control register are global.  The
! WRDSP, EXTPDP, EXTPDPV and MTHLIP instructions modify the SCOUNT and
! POS bits.  During optimization, the compiler does not delete these
  instructions and it does not delete calls to functions containing these
  instructions.
  
!  At present, GCC only provides support for operations on 32-bit
! vectors.  The vector type associated with 8-bit integer data is usually
! called `v4i8', the vector type associated with Q7 is usually called
! `v4q7', the vector type associated with 16-bit integer data is usually
! called `v2i16', and the vector type associated with Q15 is usually
! called `v2q15'.  They can be defined in C as follows:
  
       typedef signed char v4i8 __attribute__ ((vector_size(4)));
       typedef signed char v4q7 __attribute__ ((vector_size(4)));
       typedef short v2i16 __attribute__ ((vector_size(4)));
       typedef short v2q15 __attribute__ ((vector_size(4)));
  
!  `v4i8', `v4q7', `v2i16' and `v2q15' values are initialized in the same
  way as aggregates.  For example:
  
       v4i8 a = {1, 2, 3, 4};
--- 37479,37512 ----
  8-bit/16-bit integer data, Q7, Q15 and Q31 fractional data.
  
   GCC supports MIPS DSP operations using both the generic vector
! extensions (*note Vector Extensions::) and a collection of MIPS-specific
! built-in functions.  Both kinds of support are enabled by the '-mdsp'
! command-line option.
  
   Revision 2 of the ASE was introduced in the second half of 2006.  This
  revision adds extra instructions to the original ASE, but is otherwise
  backwards-compatible with it.  You can select revision 2 using the
! command-line option '-mdspr2'; this option implies '-mdsp'.
  
   The SCOUNT and POS bits of the DSP control register are global.  The
! WRDSP, EXTPDP, EXTPDPV and MTHLIP instructions modify the SCOUNT and POS
! bits.  During optimization, the compiler does not delete these
  instructions and it does not delete calls to functions containing these
  instructions.
  
!  At present, GCC only provides support for operations on 32-bit vectors.
! The vector type associated with 8-bit integer data is usually called
! 'v4i8', the vector type associated with Q7 is usually called 'v4q7', the
! vector type associated with 16-bit integer data is usually called
! 'v2i16', and the vector type associated with Q15 is usually called
! 'v2q15'.  They can be defined in C as follows:
  
       typedef signed char v4i8 __attribute__ ((vector_size(4)));
       typedef signed char v4q7 __attribute__ ((vector_size(4)));
       typedef short v2i16 __attribute__ ((vector_size(4)));
       typedef short v2q15 __attribute__ ((vector_size(4)));
  
!  'v4i8', 'v4q7', 'v2i16' and 'v2q15' values are initialized in the same
  way as aggregates.  For example:
  
       v4i8 a = {1, 2, 3, 4};
*************** way as aggregates.  For example:
*** 37851,37880 ****
  packed.  On little-endian targets, the first value is the least
  significant and the last value is the most significant.  The opposite
  order applies to big-endian targets.  For example, the code above sets
! the lowest byte of `a' to `1' on little-endian targets and `4' on
  big-endian targets.
  
   _Note:_ Q7, Q15 and Q31 values must be initialized with their integer
! representation.  As shown in this example, the integer representation
! of a Q7 value can be obtained by multiplying the fractional value by
! `0x1.0p7'.  The equivalent for Q15 values is to multiply by `0x1.0p15'.
! The equivalent for Q31 values is to multiply by `0x1.0p31'.
  
!  The table below lists the `v4i8' and `v2q15' operations for which
! hardware support exists.  `a' and `b' are `v4i8' values, and `c' and
! `d' are `v2q15' values.
  
  C code                               MIPS instruction
! `a + b'                              `addu.qb'
! `c + d'                              `addq.ph'
! `a - b'                              `subu.qb'
! `c - d'                              `subq.ph'
  
!  The table below lists the `v2i16' operation for which hardware support
! exists for the DSP ASE REV 2.  `e' and `f' are `v2i16' values.
  
  C code                               MIPS instruction
! `e * f'                              `mul.ph'
  
   It is easier to describe the DSP built-in functions if we first define
  the following types:
--- 37521,37550 ----
  packed.  On little-endian targets, the first value is the least
  significant and the last value is the most significant.  The opposite
  order applies to big-endian targets.  For example, the code above sets
! the lowest byte of 'a' to '1' on little-endian targets and '4' on
  big-endian targets.
  
   _Note:_ Q7, Q15 and Q31 values must be initialized with their integer
! representation.  As shown in this example, the integer representation of
! a Q7 value can be obtained by multiplying the fractional value by
! '0x1.0p7'.  The equivalent for Q15 values is to multiply by '0x1.0p15'.
! The equivalent for Q31 values is to multiply by '0x1.0p31'.
  
!  The table below lists the 'v4i8' and 'v2q15' operations for which
! hardware support exists.  'a' and 'b' are 'v4i8' values, and 'c' and 'd'
! are 'v2q15' values.
  
  C code                               MIPS instruction
! 'a + b'                              'addu.qb'
! 'c + d'                              'addq.ph'
! 'a - b'                              'subu.qb'
! 'c - d'                              'subq.ph'
  
!  The table below lists the 'v2i16' operation for which hardware support
! exists for the DSP ASE REV 2.  'e' and 'f' are 'v2i16' values.
  
  C code                               MIPS instruction
! 'e * f'                              'mul.ph'
  
   It is easier to describe the DSP built-in functions if we first define
  the following types:
*************** the following types:
*** 37884,37894 ****
       typedef unsigned int ui32;
       typedef long long a64;
  
!  `q31' and `i32' are actually the same as `int', but we use `q31' to
! indicate a Q31 fractional value and `i32' to indicate a 32-bit integer
! value.  Similarly, `a64' is the same as `long long', but we use `a64'
! to indicate values that are placed in one of the four DSP accumulators
! (`$ac0', `$ac1', `$ac2' or `$ac3').
  
   Also, some built-in functions prefer or require immediate numbers as
  parameters, because the corresponding DSP instructions accept both
--- 37554,37564 ----
       typedef unsigned int ui32;
       typedef long long a64;
  
!  'q31' and 'i32' are actually the same as 'int', but we use 'q31' to
! indicate a Q31 fractional value and 'i32' to indicate a 32-bit integer
! value.  Similarly, 'a64' is the same as 'long long', but we use 'a64' to
! indicate values that are placed in one of the four DSP accumulators
! ('$ac0', '$ac1', '$ac2' or '$ac3').
  
   Also, some built-in functions prefer or require immediate numbers as
  parameters, because the corresponding DSP instructions accept both
*************** only.  The immediate parameters are list
*** 37905,37912 ****
       imm_n512_511: -512 to 511.
  
   The following built-in functions map directly to a particular MIPS DSP
! instruction.  Please refer to the architecture specification for
! details on what each instruction does.
  
       v2q15 __builtin_mips_addq_ph (v2q15, v2q15)
       v2q15 __builtin_mips_addq_s_ph (v2q15, v2q15)
--- 37575,37582 ----
       imm_n512_511: -512 to 511.
  
   The following built-in functions map directly to a particular MIPS DSP
! instruction.  Please refer to the architecture specification for details
! on what each instruction does.
  
       v2q15 __builtin_mips_addq_ph (v2q15, v2q15)
       v2q15 __builtin_mips_addq_s_ph (v2q15, v2q15)
*************** File: gcc.info,  Node: MIPS Paired-Singl
*** 38077,38098 ****
  ----------------------------------
  
  The MIPS64 architecture includes a number of instructions that operate
! on pairs of single-precision floating-point values.  Each pair is
! packed into a 64-bit floating-point register, with one element being
! designated the "upper half" and the other being designated the "lower
! half".
  
   GCC supports paired-single operations using both the generic vector
! extensions (*note Vector Extensions::) and a collection of
! MIPS-specific built-in functions.  Both kinds of support are enabled by
! the `-mpaired-single' command-line option.
  
   The vector type associated with paired-single values is usually called
! `v2sf'.  It can be defined in C as follows:
  
       typedef float v2sf __attribute__ ((vector_size (8)));
  
!  `v2sf' values are initialized in the same way as aggregates.  For
  example:
  
       v2sf a = {1.5, 9.1};
--- 37747,37767 ----
  ----------------------------------
  
  The MIPS64 architecture includes a number of instructions that operate
! on pairs of single-precision floating-point values.  Each pair is packed
! into a 64-bit floating-point register, with one element being designated
! the "upper half" and the other being designated the "lower half".
  
   GCC supports paired-single operations using both the generic vector
! extensions (*note Vector Extensions::) and a collection of MIPS-specific
! built-in functions.  Both kinds of support are enabled by the
! '-mpaired-single' command-line option.
  
   The vector type associated with paired-single values is usually called
! 'v2sf'.  It can be defined in C as follows:
  
       typedef float v2sf __attribute__ ((vector_size (8)));
  
!  'v2sf' values are initialized in the same way as aggregates.  For
  example:
  
       v2sf a = {1.5, 9.1};
*************** example:
*** 38103,38111 ****
   _Note:_ The CPU's endianness determines which value is stored in the
  upper half of a register and which value is stored in the lower half.
  On little-endian targets, the first value is the lower one and the
! second value is the upper one.  The opposite order applies to
! big-endian targets.  For example, the code above sets the lower half of
! `a' to `1.5' on little-endian targets and `9.1' on big-endian targets.
  
  
  File: gcc.info,  Node: MIPS Loongson Built-in Functions,  Next: Other MIPS Built-in Functions,  Prev: MIPS Paired-Single Support,  Up: Target Builtins
--- 37772,37780 ----
   _Note:_ The CPU's endianness determines which value is stored in the
  upper half of a register and which value is stored in the lower half.
  On little-endian targets, the first value is the lower one and the
! second value is the upper one.  The opposite order applies to big-endian
! targets.  For example, the code above sets the lower half of 'a' to
! '1.5' on little-endian targets and '9.1' on big-endian targets.
  
  
  File: gcc.info,  Node: MIPS Loongson Built-in Functions,  Next: Other MIPS Built-in Functions,  Prev: MIPS Paired-Single Support,  Up: Target Builtins
*************** File: gcc.info,  Node: MIPS Loongson Bui
*** 38115,38134 ****
  
  GCC provides intrinsics to access the SIMD instructions provided by the
  ST Microelectronics Loongson-2E and -2F processors.  These intrinsics,
! available after inclusion of the `loongson.h' header file, operate on
  the following 64-bit vector types:
  
!    * `uint8x8_t', a vector of eight unsigned 8-bit integers;
! 
!    * `uint16x4_t', a vector of four unsigned 16-bit integers;
! 
!    * `uint32x2_t', a vector of two unsigned 32-bit integers;
! 
!    * `int8x8_t', a vector of eight signed 8-bit integers;
! 
!    * `int16x4_t', a vector of four signed 16-bit integers;
! 
!    * `int32x2_t', a vector of two signed 32-bit integers.
  
   The intrinsics provided are listed below; each is named after the
  machine instruction to which it corresponds, with suffixes added as
--- 37784,37798 ----
  
  GCC provides intrinsics to access the SIMD instructions provided by the
  ST Microelectronics Loongson-2E and -2F processors.  These intrinsics,
! available after inclusion of the 'loongson.h' header file, operate on
  the following 64-bit vector types:
  
!    * 'uint8x8_t', a vector of eight unsigned 8-bit integers;
!    * 'uint16x4_t', a vector of four unsigned 16-bit integers;
!    * 'uint32x2_t', a vector of two unsigned 32-bit integers;
!    * 'int8x8_t', a vector of eight signed 8-bit integers;
!    * 'int16x4_t', a vector of four signed 16-bit integers;
!    * 'int32x2_t', a vector of two signed 32-bit integers.
  
   The intrinsics provided are listed below; each is named after the
  machine instruction to which it corresponds, with suffixes added as
*************** File: gcc.info,  Node: Paired-Single Ari
*** 38249,38271 ****
  6.59.14.1 Paired-Single Arithmetic
  ..................................
  
! The table below lists the `v2sf' operations for which hardware support
! exists.  `a', `b' and `c' are `v2sf' values and `x' is an integral
  value.
  
  C code                               MIPS instruction
! `a + b'                              `add.ps'
! `a - b'                              `sub.ps'
! `-a'                                 `neg.ps'
! `a * b'                              `mul.ps'
! `a * b + c'                          `madd.ps'
! `a * b - c'                          `msub.ps'
! `-(a * b + c)'                       `nmadd.ps'
! `-(a * b - c)'                       `nmsub.ps'
! `x ? a : b'                          `movn.ps'/`movz.ps'
  
   Note that the multiply-accumulate instructions can be disabled using
! the command-line option `-mno-fused-madd'.
  
  
  File: gcc.info,  Node: Paired-Single Built-in Functions,  Next: MIPS-3D Built-in Functions,  Prev: Paired-Single Arithmetic,  Up: MIPS Loongson Built-in Functions
--- 37913,37935 ----
  6.59.14.1 Paired-Single Arithmetic
  ..................................
  
! The table below lists the 'v2sf' operations for which hardware support
! exists.  'a', 'b' and 'c' are 'v2sf' values and 'x' is an integral
  value.
  
  C code                               MIPS instruction
! 'a + b'                              'add.ps'
! 'a - b'                              'sub.ps'
! '-a'                                 'neg.ps'
! 'a * b'                              'mul.ps'
! 'a * b + c'                          'madd.ps'
! 'a * b - c'                          'msub.ps'
! '-(a * b + c)'                       'nmadd.ps'
! '-(a * b - c)'                       'nmsub.ps'
! 'x ? a : b'                          'movn.ps'/'movz.ps'
  
   Note that the multiply-accumulate instructions can be disabled using
! the command-line option '-mno-fused-madd'.
  
  
  File: gcc.info,  Node: Paired-Single Built-in Functions,  Next: MIPS-3D Built-in Functions,  Prev: Paired-Single Arithmetic,  Up: MIPS Loongson Built-in Functions
*************** File: gcc.info,  Node: Paired-Single Bui
*** 38274,38339 ****
  ..........................................
  
  The following paired-single functions map directly to a particular MIPS
! instruction.  Please refer to the architecture specification for
! details on what each instruction does.
  
! `v2sf __builtin_mips_pll_ps (v2sf, v2sf)'
!      Pair lower lower (`pll.ps').
  
! `v2sf __builtin_mips_pul_ps (v2sf, v2sf)'
!      Pair upper lower (`pul.ps').
  
! `v2sf __builtin_mips_plu_ps (v2sf, v2sf)'
!      Pair lower upper (`plu.ps').
  
! `v2sf __builtin_mips_puu_ps (v2sf, v2sf)'
!      Pair upper upper (`puu.ps').
  
! `v2sf __builtin_mips_cvt_ps_s (float, float)'
!      Convert pair to paired single (`cvt.ps.s').
  
! `float __builtin_mips_cvt_s_pl (v2sf)'
!      Convert pair lower to single (`cvt.s.pl').
  
! `float __builtin_mips_cvt_s_pu (v2sf)'
!      Convert pair upper to single (`cvt.s.pu').
  
! `v2sf __builtin_mips_abs_ps (v2sf)'
!      Absolute value (`abs.ps').
  
! `v2sf __builtin_mips_alnv_ps (v2sf, v2sf, int)'
!      Align variable (`alnv.ps').
  
       _Note:_ The value of the third parameter must be 0 or 4 modulo 8,
!      otherwise the result is unpredictable.  Please read the
!      instruction description for details.
  
   The following multi-instruction functions are also available.  In each
! case, COND can be any of the 16 floating-point conditions: `f', `un',
! `eq', `ueq', `olt', `ult', `ole', `ule', `sf', `ngle', `seq', `ngl',
! `lt', `nge', `le' or `ngt'.
  
! `v2sf __builtin_mips_movt_c_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
! `v2sf __builtin_mips_movf_c_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
!      Conditional move based on floating-point comparison (`c.COND.ps',
!      `movt.ps'/`movf.ps').
  
!      The `movt' functions return the value X computed by:
  
            c.COND.ps CC,A,B
            mov.ps X,C
            movt.ps X,D,CC
  
!      The `movf' functions are similar but use `movf.ps' instead of
!      `movt.ps'.
  
! `int __builtin_mips_upper_c_COND_ps (v2sf A, v2sf B)'
! `int __builtin_mips_lower_c_COND_ps (v2sf A, v2sf B)'
!      Comparison of two paired-single values (`c.COND.ps',
!      `bc1t'/`bc1f').
  
!      These functions compare A and B using `c.COND.ps' and return
!      either the upper or lower half of the result.  For example:
  
            v2sf a, b;
            if (__builtin_mips_upper_c_eq_ps (a, b))
--- 37938,38003 ----
  ..........................................
  
  The following paired-single functions map directly to a particular MIPS
! instruction.  Please refer to the architecture specification for details
! on what each instruction does.
  
! 'v2sf __builtin_mips_pll_ps (v2sf, v2sf)'
!      Pair lower lower ('pll.ps').
  
! 'v2sf __builtin_mips_pul_ps (v2sf, v2sf)'
!      Pair upper lower ('pul.ps').
  
! 'v2sf __builtin_mips_plu_ps (v2sf, v2sf)'
!      Pair lower upper ('plu.ps').
  
! 'v2sf __builtin_mips_puu_ps (v2sf, v2sf)'
!      Pair upper upper ('puu.ps').
  
! 'v2sf __builtin_mips_cvt_ps_s (float, float)'
!      Convert pair to paired single ('cvt.ps.s').
  
! 'float __builtin_mips_cvt_s_pl (v2sf)'
!      Convert pair lower to single ('cvt.s.pl').
  
! 'float __builtin_mips_cvt_s_pu (v2sf)'
!      Convert pair upper to single ('cvt.s.pu').
  
! 'v2sf __builtin_mips_abs_ps (v2sf)'
!      Absolute value ('abs.ps').
  
! 'v2sf __builtin_mips_alnv_ps (v2sf, v2sf, int)'
!      Align variable ('alnv.ps').
  
       _Note:_ The value of the third parameter must be 0 or 4 modulo 8,
!      otherwise the result is unpredictable.  Please read the instruction
!      description for details.
  
   The following multi-instruction functions are also available.  In each
! case, COND can be any of the 16 floating-point conditions: 'f', 'un',
! 'eq', 'ueq', 'olt', 'ult', 'ole', 'ule', 'sf', 'ngle', 'seq', 'ngl',
! 'lt', 'nge', 'le' or 'ngt'.
  
! 'v2sf __builtin_mips_movt_c_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
! 'v2sf __builtin_mips_movf_c_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
!      Conditional move based on floating-point comparison ('c.COND.ps',
!      'movt.ps'/'movf.ps').
  
!      The 'movt' functions return the value X computed by:
  
            c.COND.ps CC,A,B
            mov.ps X,C
            movt.ps X,D,CC
  
!      The 'movf' functions are similar but use 'movf.ps' instead of
!      'movt.ps'.
  
! 'int __builtin_mips_upper_c_COND_ps (v2sf A, v2sf B)'
! 'int __builtin_mips_lower_c_COND_ps (v2sf A, v2sf B)'
!      Comparison of two paired-single values ('c.COND.ps',
!      'bc1t'/'bc1f').
  
!      These functions compare A and B using 'c.COND.ps' and return either
!      the upper or lower half of the result.  For example:
  
            v2sf a, b;
            if (__builtin_mips_upper_c_eq_ps (a, b))
*************** File: gcc.info,  Node: MIPS-3D Built-in
*** 38355,38412 ****
  The MIPS-3D Application-Specific Extension (ASE) includes additional
  paired-single instructions that are designed to improve the performance
  of 3D graphics operations.  Support for these instructions is controlled
! by the `-mips3d' command-line option.
  
   The functions listed below map directly to a particular MIPS-3D
  instruction.  Please refer to the architecture specification for more
  details on what each instruction does.
  
! `v2sf __builtin_mips_addr_ps (v2sf, v2sf)'
!      Reduction add (`addr.ps').
  
! `v2sf __builtin_mips_mulr_ps (v2sf, v2sf)'
!      Reduction multiply (`mulr.ps').
  
! `v2sf __builtin_mips_cvt_pw_ps (v2sf)'
!      Convert paired single to paired word (`cvt.pw.ps').
  
! `v2sf __builtin_mips_cvt_ps_pw (v2sf)'
!      Convert paired word to paired single (`cvt.ps.pw').
  
! `float __builtin_mips_recip1_s (float)'
! `double __builtin_mips_recip1_d (double)'
! `v2sf __builtin_mips_recip1_ps (v2sf)'
!      Reduced-precision reciprocal (sequence step 1) (`recip1.FMT').
  
! `float __builtin_mips_recip2_s (float, float)'
! `double __builtin_mips_recip2_d (double, double)'
! `v2sf __builtin_mips_recip2_ps (v2sf, v2sf)'
!      Reduced-precision reciprocal (sequence step 2) (`recip2.FMT').
  
! `float __builtin_mips_rsqrt1_s (float)'
! `double __builtin_mips_rsqrt1_d (double)'
! `v2sf __builtin_mips_rsqrt1_ps (v2sf)'
       Reduced-precision reciprocal square root (sequence step 1)
!      (`rsqrt1.FMT').
  
! `float __builtin_mips_rsqrt2_s (float, float)'
! `double __builtin_mips_rsqrt2_d (double, double)'
! `v2sf __builtin_mips_rsqrt2_ps (v2sf, v2sf)'
       Reduced-precision reciprocal square root (sequence step 2)
!      (`rsqrt2.FMT').
  
   The following multi-instruction functions are also available.  In each
! case, COND can be any of the 16 floating-point conditions: `f', `un',
! `eq', `ueq', `olt', `ult', `ole', `ule', `sf', `ngle', `seq', `ngl',
! `lt', `nge', `le' or `ngt'.
  
! `int __builtin_mips_cabs_COND_s (float A, float B)'
! `int __builtin_mips_cabs_COND_d (double A, double B)'
!      Absolute comparison of two scalar values (`cabs.COND.FMT',
!      `bc1t'/`bc1f').
  
!      These functions compare A and B using `cabs.COND.s' or
!      `cabs.COND.d' and return the result as a boolean value.  For
       example:
  
            float a, b;
--- 38019,38076 ----
  The MIPS-3D Application-Specific Extension (ASE) includes additional
  paired-single instructions that are designed to improve the performance
  of 3D graphics operations.  Support for these instructions is controlled
! by the '-mips3d' command-line option.
  
   The functions listed below map directly to a particular MIPS-3D
  instruction.  Please refer to the architecture specification for more
  details on what each instruction does.
  
! 'v2sf __builtin_mips_addr_ps (v2sf, v2sf)'
!      Reduction add ('addr.ps').
  
! 'v2sf __builtin_mips_mulr_ps (v2sf, v2sf)'
!      Reduction multiply ('mulr.ps').
  
! 'v2sf __builtin_mips_cvt_pw_ps (v2sf)'
!      Convert paired single to paired word ('cvt.pw.ps').
  
! 'v2sf __builtin_mips_cvt_ps_pw (v2sf)'
!      Convert paired word to paired single ('cvt.ps.pw').
  
! 'float __builtin_mips_recip1_s (float)'
! 'double __builtin_mips_recip1_d (double)'
! 'v2sf __builtin_mips_recip1_ps (v2sf)'
!      Reduced-precision reciprocal (sequence step 1) ('recip1.FMT').
  
! 'float __builtin_mips_recip2_s (float, float)'
! 'double __builtin_mips_recip2_d (double, double)'
! 'v2sf __builtin_mips_recip2_ps (v2sf, v2sf)'
!      Reduced-precision reciprocal (sequence step 2) ('recip2.FMT').
  
! 'float __builtin_mips_rsqrt1_s (float)'
! 'double __builtin_mips_rsqrt1_d (double)'
! 'v2sf __builtin_mips_rsqrt1_ps (v2sf)'
       Reduced-precision reciprocal square root (sequence step 1)
!      ('rsqrt1.FMT').
  
! 'float __builtin_mips_rsqrt2_s (float, float)'
! 'double __builtin_mips_rsqrt2_d (double, double)'
! 'v2sf __builtin_mips_rsqrt2_ps (v2sf, v2sf)'
       Reduced-precision reciprocal square root (sequence step 2)
!      ('rsqrt2.FMT').
  
   The following multi-instruction functions are also available.  In each
! case, COND can be any of the 16 floating-point conditions: 'f', 'un',
! 'eq', 'ueq', 'olt', 'ult', 'ole', 'ule', 'sf', 'ngle', 'seq', 'ngl',
! 'lt', 'nge', 'le' or 'ngt'.
  
! 'int __builtin_mips_cabs_COND_s (float A, float B)'
! 'int __builtin_mips_cabs_COND_d (double A, double B)'
!      Absolute comparison of two scalar values ('cabs.COND.FMT',
!      'bc1t'/'bc1f').
  
!      These functions compare A and B using 'cabs.COND.s' or
!      'cabs.COND.d' and return the result as a boolean value.  For
       example:
  
            float a, b;
*************** case, COND can be any of the 16 floating
*** 38415,38426 ****
            else
              false ();
  
! `int __builtin_mips_upper_cabs_COND_ps (v2sf A, v2sf B)'
! `int __builtin_mips_lower_cabs_COND_ps (v2sf A, v2sf B)'
!      Absolute comparison of two paired-single values (`cabs.COND.ps',
!      `bc1t'/`bc1f').
  
!      These functions compare A and B using `cabs.COND.ps' and return
       either the upper or lower half of the result.  For example:
  
            v2sf a, b;
--- 38079,38090 ----
            else
              false ();
  
! 'int __builtin_mips_upper_cabs_COND_ps (v2sf A, v2sf B)'
! 'int __builtin_mips_lower_cabs_COND_ps (v2sf A, v2sf B)'
!      Absolute comparison of two paired-single values ('cabs.COND.ps',
!      'bc1t'/'bc1f').
  
!      These functions compare A and B using 'cabs.COND.ps' and return
       either the upper or lower half of the result.  For example:
  
            v2sf a, b;
*************** case, COND can be any of the 16 floating
*** 38434,38464 ****
            else
              lower_halves_are_unequal ();
  
! `v2sf __builtin_mips_movt_cabs_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
! `v2sf __builtin_mips_movf_cabs_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
!      Conditional move based on absolute comparison (`cabs.COND.ps',
!      `movt.ps'/`movf.ps').
  
!      The `movt' functions return the value X computed by:
  
            cabs.COND.ps CC,A,B
            mov.ps X,C
            movt.ps X,D,CC
  
!      The `movf' functions are similar but use `movf.ps' instead of
!      `movt.ps'.
  
! `int __builtin_mips_any_c_COND_ps (v2sf A, v2sf B)'
! `int __builtin_mips_all_c_COND_ps (v2sf A, v2sf B)'
! `int __builtin_mips_any_cabs_COND_ps (v2sf A, v2sf B)'
! `int __builtin_mips_all_cabs_COND_ps (v2sf A, v2sf B)'
!      Comparison of two paired-single values (`c.COND.ps'/`cabs.COND.ps',
!      `bc1any2t'/`bc1any2f').
  
!      These functions compare A and B using `c.COND.ps' or
!      `cabs.COND.ps'.  The `any' forms return true if either result is
!      true and the `all' forms return true if both results are true.
!      For example:
  
            v2sf a, b;
            if (__builtin_mips_any_c_eq_ps (a, b))
--- 38098,38128 ----
            else
              lower_halves_are_unequal ();
  
! 'v2sf __builtin_mips_movt_cabs_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
! 'v2sf __builtin_mips_movf_cabs_COND_ps (v2sf A, v2sf B, v2sf C, v2sf D)'
!      Conditional move based on absolute comparison ('cabs.COND.ps',
!      'movt.ps'/'movf.ps').
  
!      The 'movt' functions return the value X computed by:
  
            cabs.COND.ps CC,A,B
            mov.ps X,C
            movt.ps X,D,CC
  
!      The 'movf' functions are similar but use 'movf.ps' instead of
!      'movt.ps'.
  
! 'int __builtin_mips_any_c_COND_ps (v2sf A, v2sf B)'
! 'int __builtin_mips_all_c_COND_ps (v2sf A, v2sf B)'
! 'int __builtin_mips_any_cabs_COND_ps (v2sf A, v2sf B)'
! 'int __builtin_mips_all_cabs_COND_ps (v2sf A, v2sf B)'
!      Comparison of two paired-single values ('c.COND.ps'/'cabs.COND.ps',
!      'bc1any2t'/'bc1any2f').
  
!      These functions compare A and B using 'c.COND.ps' or
!      'cabs.COND.ps'.  The 'any' forms return true if either result is
!      true and the 'all' forms return true if both results are true.  For
!      example:
  
            v2sf a, b;
            if (__builtin_mips_any_c_eq_ps (a, b))
*************** case, COND can be any of the 16 floating
*** 38471,38487 ****
            else
              one_is_false ();
  
! `int __builtin_mips_any_c_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
! `int __builtin_mips_all_c_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
! `int __builtin_mips_any_cabs_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
! `int __builtin_mips_all_cabs_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
       Comparison of four paired-single values
!      (`c.COND.ps'/`cabs.COND.ps', `bc1any4t'/`bc1any4f').
  
!      These functions use `c.COND.ps' or `cabs.COND.ps' to compare A
!      with B and to compare C with D.  The `any' forms return true if
!      any of the four results are true and the `all' forms return true
!      if all four results are true.  For example:
  
            v2sf a, b, c, d;
            if (__builtin_mips_any_c_eq_4s (a, b, c, d))
--- 38135,38151 ----
            else
              one_is_false ();
  
! 'int __builtin_mips_any_c_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
! 'int __builtin_mips_all_c_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
! 'int __builtin_mips_any_cabs_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
! 'int __builtin_mips_all_cabs_COND_4s (v2sf A, v2sf B, v2sf C, v2sf D)'
       Comparison of four paired-single values
!      ('c.COND.ps'/'cabs.COND.ps', 'bc1any4t'/'bc1any4f').
  
!      These functions use 'c.COND.ps' or 'cabs.COND.ps' to compare A with
!      B and to compare C with D.  The 'any' forms return true if any of
!      the four results are true and the 'all' forms return true if all
!      four results are true.  For example:
  
            v2sf a, b, c, d;
            if (__builtin_mips_any_c_eq_4s (a, b, c, d))
*************** File: gcc.info,  Node: Other MIPS Built-
*** 38502,38520 ****
  
  GCC provides other MIPS-specific built-in functions:
  
! `void __builtin_mips_cache (int OP, const volatile void *ADDR)'
!      Insert a `cache' instruction with operands OP and ADDR.  GCC
!      defines the preprocessor macro `___GCC_HAVE_BUILTIN_MIPS_CACHE'
       when this function is available.
  
! `unsigned int __builtin_mips_get_fcsr (void)'
! `void __builtin_mips_set_fcsr (unsigned int VALUE)'
       Get and set the contents of the floating-point control and status
       register (FPU control register 31).  These functions are only
       available in hard-float code but can be called in both MIPS16 and
       non-MIPS16 contexts.
  
!      `__builtin_mips_set_fcsr' can be used to change any bit of the
       register except the condition codes, which GCC assumes are
       preserved.
  
--- 38166,38184 ----
  
  GCC provides other MIPS-specific built-in functions:
  
! 'void __builtin_mips_cache (int OP, const volatile void *ADDR)'
!      Insert a 'cache' instruction with operands OP and ADDR.  GCC
!      defines the preprocessor macro '___GCC_HAVE_BUILTIN_MIPS_CACHE'
       when this function is available.
  
! 'unsigned int __builtin_mips_get_fcsr (void)'
! 'void __builtin_mips_set_fcsr (unsigned int VALUE)'
       Get and set the contents of the floating-point control and status
       register (FPU control register 31).  These functions are only
       available in hard-float code but can be called in both MIPS16 and
       non-MIPS16 contexts.
  
!      '__builtin_mips_set_fcsr' can be used to change any bit of the
       register except the condition codes, which GCC assumes are
       preserved.
  
*************** File: gcc.info,  Node: MSP430 Built-in F
*** 38524,38545 ****
  6.59.16 MSP430 Built-in Functions
  ---------------------------------
  
! GCC provides a couple of special builtin functions to aid in the
! writing of interrupt handlers in C.
  
! `__bic_SR_register_on_exit (int MASK)'
       This clears the indicated bits in the saved copy of the status
       register currently residing on the stack.  This only works inside
!      interrupt handlers and the changes to the status register will
!      only take affect once the handler returns.
  
! `__bis_SR_register_on_exit (int MASK)'
       This sets the indicated bits in the saved copy of the status
       register currently residing on the stack.  This only works inside
!      interrupt handlers and the changes to the status register will
!      only take affect once the handler returns.
  
! `__delay_cycles (long long CYCLES)'
       This inserts an instruction sequence that takes exactly CYCLES
       cycles (between 0 and about 17E9) to complete.  The inserted
       sequence may use jumps, loops, or no-ops, and does not interfere
--- 38188,38209 ----
  6.59.16 MSP430 Built-in Functions
  ---------------------------------
  
! GCC provides a couple of special builtin functions to aid in the writing
! of interrupt handlers in C.
  
! '__bic_SR_register_on_exit (int MASK)'
       This clears the indicated bits in the saved copy of the status
       register currently residing on the stack.  This only works inside
!      interrupt handlers and the changes to the status register will only
!      take affect once the handler returns.
  
! '__bis_SR_register_on_exit (int MASK)'
       This sets the indicated bits in the saved copy of the status
       register currently residing on the stack.  This only works inside
!      interrupt handlers and the changes to the status register will only
!      take affect once the handler returns.
  
! '__delay_cycles (long long CYCLES)'
       This inserts an instruction sequence that takes exactly CYCLES
       cycles (between 0 and about 17E9) to complete.  The inserted
       sequence may use jumps, loops, or no-ops, and does not interfere
*************** File: gcc.info,  Node: picoChip Built-in
*** 38590,38623 ****
  GCC provides an interface to selected machine instructions from the
  picoChip instruction set.
  
! `int __builtin_sbc (int VALUE)'
       Sign bit count.  Return the number of consecutive bits in VALUE
!      that have the same value as the sign bit.  The result is the
!      number of leading sign bits minus one, giving the number of
!      redundant sign bits in VALUE.
  
! `int __builtin_byteswap (int VALUE)'
!      Byte swap.  Return the result of swapping the upper and lower
!      bytes of VALUE.
  
! `int __builtin_brev (int VALUE)'
       Bit reversal.  Return the result of reversing the bits in VALUE.
       Bit 15 is swapped with bit 0, bit 14 is swapped with bit 1, and so
       on.
  
! `int __builtin_adds (int X, int Y)'
       Saturating addition.  Return the result of adding X and Y, storing
       the value 32767 if the result overflows.
  
! `int __builtin_subs (int X, int Y)'
!      Saturating subtraction.  Return the result of subtracting Y from
!      X, storing the value -32768 if the result overflows.
  
! `void __builtin_halt (void)'
       Halt.  The processor stops execution.  This built-in is useful for
       implementing assertions.
  
- 
  
  File: gcc.info,  Node: PowerPC Built-in Functions,  Next: PowerPC AltiVec/VSX Built-in Functions,  Prev: picoChip Built-in Functions,  Up: Target Builtins
  
--- 38254,38286 ----
  GCC provides an interface to selected machine instructions from the
  picoChip instruction set.
  
! 'int __builtin_sbc (int VALUE)'
       Sign bit count.  Return the number of consecutive bits in VALUE
!      that have the same value as the sign bit.  The result is the number
!      of leading sign bits minus one, giving the number of redundant sign
!      bits in VALUE.
  
! 'int __builtin_byteswap (int VALUE)'
!      Byte swap.  Return the result of swapping the upper and lower bytes
!      of VALUE.
  
! 'int __builtin_brev (int VALUE)'
       Bit reversal.  Return the result of reversing the bits in VALUE.
       Bit 15 is swapped with bit 0, bit 14 is swapped with bit 1, and so
       on.
  
! 'int __builtin_adds (int X, int Y)'
       Saturating addition.  Return the result of adding X and Y, storing
       the value 32767 if the result overflows.
  
! 'int __builtin_subs (int X, int Y)'
!      Saturating subtraction.  Return the result of subtracting Y from X,
!      storing the value -32768 if the result overflows.
  
! 'void __builtin_halt (void)'
       Halt.  The processor stops execution.  This built-in is useful for
       implementing assertions.
  
  
  File: gcc.info,  Node: PowerPC Built-in Functions,  Next: PowerPC AltiVec/VSX Built-in Functions,  Prev: picoChip Built-in Functions,  Up: Target Builtins
  
*************** The following built-in functions are alw
*** 38628,38826 ****
  check the PowerPC target platform type:
  
   -- Built-in Function: void __builtin_cpu_init (void)
!      This function is a `nop' on the PowerPC platform and is included
       solely to maintain API compatibility with the x86 builtins.
  
   -- Built-in Function: int __builtin_cpu_is (const char *CPUNAME)
!      This function returns a value of `1' if the run-time CPU is of type
!      CPUNAME and returns `0' otherwise. The following CPU names can be
!      detected:
  
!     `power9'
!           IBM POWER9 Server CPU.
  
!     `power8'
!           IBM POWER8 Server CPU.
  
!     `power7'
!           IBM POWER7 Server CPU.
  
!     `power6x'
            IBM POWER6 Server CPU (RAW mode).
! 
!     `power6'
            IBM POWER6 Server CPU (Architected mode).
! 
!     `power5+'
            IBM POWER5+ Server CPU.
! 
!     `power5'
            IBM POWER5 Server CPU.
! 
!     `ppc970'
            IBM 970 Server CPU (ie, Apple G5).
! 
!     `power4'
            IBM POWER4 Server CPU.
! 
!     `ppca2'
            IBM A2 64-bit Embedded CPU
! 
!     `ppc476'
            IBM PowerPC 476FP 32-bit Embedded CPU.
! 
!     `ppc464'
            IBM PowerPC 464 32-bit Embedded CPU.
! 
!     `ppc440'
            PowerPC 440 32-bit Embedded CPU.
! 
!     `ppc405'
            PowerPC 405 32-bit Embedded CPU.
! 
!     `ppc-cell-be'
            IBM PowerPC Cell Broadband Engine Architecture CPU.
  
       Here is an example:
!           if (__builtin_cpu_is ("power8"))
!             {
!                do_power8 (); // POWER8 specific implementation.
!             }
!           else
!             {
!                do_generic (); // Generic implementation.
!             }
  
   -- Built-in Function: int __builtin_cpu_supports (const char *FEATURE)
!      This function returns a value of `1' if the run-time CPU supports
!      the HWCAP feature FEATURE and returns `0' otherwise. The following
!      features can be detected:
  
!     `4xxmac'
!           4xx CPU has a Multiply Accumulator.
  
!     `altivec'
!           CPU has a SIMD/Vector Unit.
  
!     `arch_2_05'
!           CPU supports ISA 2.05 (eg, POWER6)
  
!     `arch_2_06'
            CPU supports ISA 2.06 (eg, POWER7)
! 
!     `arch_2_07'
            CPU supports ISA 2.07 (eg, POWER8)
! 
!     `arch_3_00'
            CPU supports ISA 3.00 (eg, POWER9)
! 
!     `archpmu'
            CPU supports the set of compatible performance monitoring
            events.
! 
!     `booke'
            CPU supports the Embedded ISA category.
! 
!     `cellbe'
            CPU has a CELL broadband engine.
! 
!     `dfp'
            CPU has a decimal floating point unit.
! 
!     `dscr'
            CPU supports the data stream control register.
! 
!     `ebb'
            CPU supports event base branching.
! 
!     `efpdouble'
            CPU has a SPE double precision floating point unit.
! 
!     `efpsingle'
            CPU has a SPE single precision floating point unit.
! 
!     `fpu'
            CPU has a floating point unit.
! 
!     `htm'
            CPU has hardware transaction memory instructions.
! 
!     `htm-nosc'
            Kernel aborts hardware transactions when a syscall is made.
! 
!     `ic_snoop'
            CPU supports icache snooping capabilities.
! 
!     `ieee128'
            CPU supports 128-bit IEEE binary floating point instructions.
! 
!     `isel'
            CPU supports the integer select instruction.
! 
!     `mmu'
            CPU has a memory management unit.
! 
!     `notb'
            CPU does not have a timebase (eg, 601 and 403gx).
! 
!     `pa6t'
            CPU supports the PA Semi 6T CORE ISA.
! 
!     `power4'
            CPU supports ISA 2.00 (eg, POWER4)
! 
!     `power5'
            CPU supports ISA 2.02 (eg, POWER5)
! 
!     `power5+'
            CPU supports ISA 2.03 (eg, POWER5+)
! 
!     `power6x'
!           CPU supports ISA 2.05 (eg, POWER6) extended opcodes mffgpr
!           and mftgpr.
! 
!     `ppc32'
            CPU supports 32-bit mode execution.
! 
!     `ppc601'
            CPU supports the old POWER ISA (eg, 601)
! 
!     `ppc64'
            CPU supports 64-bit mode execution.
! 
!     `ppcle'
            CPU supports a little-endian mode that uses address swizzling.
! 
!     `smt'
            CPU support simultaneous multi-threading.
! 
!     `spe'
            CPU has a signal processing extension unit.
! 
!     `tar'
            CPU supports the target address register.
! 
!     `true_le'
            CPU supports true little-endian mode.
! 
!     `ucache'
            CPU has unified I/D cache.
! 
!     `vcrypto'
            CPU supports the vector cryptography instructions.
! 
!     `vsx'
            CPU supports the vector-scalar extension.
  
       Here is an example:
!           if (__builtin_cpu_supports ("fpu"))
!             {
!                asm("fadd %0,%1,%2" : "=d"(dst) : "d"(src1), "d"(src2));
!             }
!           else
!             {
!                dst = __fadd (src1, src2); // Software FP addition function.
!             }
  
   These built-in functions are available for the PowerPC family of
  processors:
--- 38291,38466 ----
  check the PowerPC target platform type:
  
   -- Built-in Function: void __builtin_cpu_init (void)
!      This function is a 'nop' on the PowerPC platform and is included
!      solely to maintain API compatibility with the x86 builtins.
! 
!  -- Built-in Function: void __builtin_cpu_init (void)
!      This function is a 'nop' on the PowerPC platform and is included
       solely to maintain API compatibility with the x86 builtins.
  
   -- Built-in Function: int __builtin_cpu_is (const char *CPUNAME)
!      This function returns a value of '1' if the run-time CPU is of type
!      CPUNAME and returns '0' otherwise
  
!      The '__builtin_cpu_is' function requires GLIBC 2.23 or newer which
!      exports the hardware capability bits.  GCC defines the macro
!      '__BUILTIN_CPU_SUPPORTS__' if the '__builtin_cpu_supports' built-in
!      function is fully supported.
  
!      If GCC was configured to use a GLIBC before 2.23, the built-in
!      function '__builtin_cpu_is' always returns a 0 and the compiler
!      issues a warning.
  
!      The following CPU names can be detected:
  
!      'power9'
!           IBM POWER9 Server CPU.
!      'power8'
!           IBM POWER8 Server CPU.
!      'power7'
!           IBM POWER7 Server CPU.
!      'power6x'
            IBM POWER6 Server CPU (RAW mode).
!      'power6'
            IBM POWER6 Server CPU (Architected mode).
!      'power5+'
            IBM POWER5+ Server CPU.
!      'power5'
            IBM POWER5 Server CPU.
!      'ppc970'
            IBM 970 Server CPU (ie, Apple G5).
!      'power4'
            IBM POWER4 Server CPU.
!      'ppca2'
            IBM A2 64-bit Embedded CPU
!      'ppc476'
            IBM PowerPC 476FP 32-bit Embedded CPU.
!      'ppc464'
            IBM PowerPC 464 32-bit Embedded CPU.
!      'ppc440'
            PowerPC 440 32-bit Embedded CPU.
!      'ppc405'
            PowerPC 405 32-bit Embedded CPU.
!      'ppc-cell-be'
            IBM PowerPC Cell Broadband Engine Architecture CPU.
  
       Here is an example:
!           #ifdef __BUILTIN_CPU_SUPPORTS__
!             if (__builtin_cpu_is ("power8"))
!               {
!                  do_power8 (); // POWER8 specific implementation.
!               }
!             else
!           #endif
!               {
!                  do_generic (); // Generic implementation.
!               }
  
   -- Built-in Function: int __builtin_cpu_supports (const char *FEATURE)
!      This function returns a value of '1' if the run-time CPU supports
!      the HWCAP feature FEATURE and returns '0' otherwise.
  
!      The '__builtin_cpu_supports' function requires GLIBC 2.23 or newer
!      which exports the hardware capability bits.  GCC defines the macro
!      '__BUILTIN_CPU_SUPPORTS__' if the '__builtin_cpu_supports' built-in
!      function is fully supported.
  
!      If GCC was configured to use a GLIBC before 2.23, the built-in
!      function '__builtin_cpu_suports' always returns a 0 and the
!      compiler issues a warning.
  
!      The following features can be detected:
  
!      '4xxmac'
!           4xx CPU has a Multiply Accumulator.
!      'altivec'
!           CPU has a SIMD/Vector Unit.
!      'arch_2_05'
!           CPU supports ISA 2.05 (eg, POWER6)
!      'arch_2_06'
            CPU supports ISA 2.06 (eg, POWER7)
!      'arch_2_07'
            CPU supports ISA 2.07 (eg, POWER8)
!      'arch_3_00'
            CPU supports ISA 3.00 (eg, POWER9)
!      'archpmu'
            CPU supports the set of compatible performance monitoring
            events.
!      'booke'
            CPU supports the Embedded ISA category.
!      'cellbe'
            CPU has a CELL broadband engine.
!      'dfp'
            CPU has a decimal floating point unit.
!      'dscr'
            CPU supports the data stream control register.
!      'ebb'
            CPU supports event base branching.
!      'efpdouble'
            CPU has a SPE double precision floating point unit.
!      'efpsingle'
            CPU has a SPE single precision floating point unit.
!      'fpu'
            CPU has a floating point unit.
!      'htm'
            CPU has hardware transaction memory instructions.
!      'htm-nosc'
            Kernel aborts hardware transactions when a syscall is made.
!      'ic_snoop'
            CPU supports icache snooping capabilities.
!      'ieee128'
            CPU supports 128-bit IEEE binary floating point instructions.
!      'isel'
            CPU supports the integer select instruction.
!      'mmu'
            CPU has a memory management unit.
!      'notb'
            CPU does not have a timebase (eg, 601 and 403gx).
!      'pa6t'
            CPU supports the PA Semi 6T CORE ISA.
!      'power4'
            CPU supports ISA 2.00 (eg, POWER4)
!      'power5'
            CPU supports ISA 2.02 (eg, POWER5)
!      'power5+'
            CPU supports ISA 2.03 (eg, POWER5+)
!      'power6x'
!           CPU supports ISA 2.05 (eg, POWER6) extended opcodes mffgpr and
!           mftgpr.
!      'ppc32'
            CPU supports 32-bit mode execution.
!      'ppc601'
            CPU supports the old POWER ISA (eg, 601)
!      'ppc64'
            CPU supports 64-bit mode execution.
!      'ppcle'
            CPU supports a little-endian mode that uses address swizzling.
!      'smt'
            CPU support simultaneous multi-threading.
!      'spe'
            CPU has a signal processing extension unit.
!      'tar'
            CPU supports the target address register.
!      'true_le'
            CPU supports true little-endian mode.
!      'ucache'
            CPU has unified I/D cache.
!      'vcrypto'
            CPU supports the vector cryptography instructions.
!      'vsx'
            CPU supports the vector-scalar extension.
  
       Here is an example:
!           #ifdef __BUILTIN_CPU_SUPPORTS__
!             if (__builtin_cpu_supports ("fpu"))
!               {
!                  asm("fadd %0,%1,%2" : "=d"(dst) : "d"(src1), "d"(src2));
!               }
!             else
!           #endif
!               {
!                  dst = __fadd (src1, src2); // Software FP addition function.
!               }
  
   These built-in functions are available for the PowerPC family of
  processors:
*************** processors:
*** 38833,38904 ****
       double __builtin_unpack_longdouble (long double, int);
       long double __builtin_pack_longdouble (double, double);
  
!  The `vec_rsqrt', `__builtin_rsqrt', and `__builtin_rsqrtf' functions
  generate multiple instructions to implement the reciprocal sqrt
  functionality using reciprocal sqrt estimate instructions.
  
!  The `__builtin_recipdiv', and `__builtin_recipdivf' functions generate
  multiple instructions to implement division using the reciprocal
  estimate instructions.
  
!  The `__builtin_ppc_get_timebase' and `__builtin_ppc_mftb' functions
  generate instructions to read the Time Base Register.  The
! `__builtin_ppc_get_timebase' function may generate multiple
! instructions and always returns the 64 bits of the Time Base Register.
! The `__builtin_ppc_mftb' function always generates one instruction and
  returns the Time Base Register value as an unsigned long, throwing away
  the most significant word on 32-bit environments.
  
   Additional built-in functions are available for the 64-bit PowerPC
  family of processors, for efficient use of 128-bit floating point
! (`__float128') values.
  
   The following floating-point built-in functions are available with
! `-mfloat128' and Altivec support.  All of them implement the function
  that is part of the name.
  
       __float128 __builtin_fabsq (__float128)
       __float128 __builtin_copysignq (__float128, __float128)
  
!  The following built-in functions are available with `-mfloat128' and
  Altivec support.
  
! `__float128 __builtin_infq (void)'
!      Similar to `__builtin_inf', except the return type is `__float128'.  
  
! `__float128 __builtin_huge_valq (void)'
!      Similar to `__builtin_huge_val', except the return type is
!      `__float128'.  
  
! `__float128 __builtin_nanq (void)'
!      Similar to `__builtin_nan', except the return type is `__float128'.  
  
! `__float128 __builtin_nansq (void)'
!      Similar to `__builtin_nans', except the return type is
!      `__float128'.  
  
   The following built-in functions are available for the PowerPC family
! of processors, starting with ISA 2.06 or later (`-mcpu=power7' or
! `-mpopcntd'):
       long __builtin_bpermd (long, long);
       int __builtin_divwe (int, int);
-      int __builtin_divweo (int, int);
       unsigned int __builtin_divweu (unsigned int, unsigned int);
-      unsigned int __builtin_divweuo (unsigned int, unsigned int);
       long __builtin_divde (long, long);
-      long __builtin_divdeo (long, long);
       unsigned long __builtin_divdeu (unsigned long, unsigned long);
-      unsigned long __builtin_divdeuo (unsigned long, unsigned long);
       unsigned int cdtbcd (unsigned int);
       unsigned int cbcdtd (unsigned int);
       unsigned int addg6s (unsigned int, unsigned int);
  
!  The `__builtin_divde', `__builtin_divdeo', `__builtin_divdeu',
! `__builtin_divdeou' functions require a 64-bit environment support ISA
! 2.06 or later.
  
   The following built-in functions are available for the PowerPC family
! of processors, starting with ISA 3.0 or later (`-mcpu=power9'):
       long long __builtin_darn (void);
       long long __builtin_darn_raw (void);
       int __builtin_darn_32 (void);
--- 38473,38539 ----
       double __builtin_unpack_longdouble (long double, int);
       long double __builtin_pack_longdouble (double, double);
  
!  The 'vec_rsqrt', '__builtin_rsqrt', and '__builtin_rsqrtf' functions
  generate multiple instructions to implement the reciprocal sqrt
  functionality using reciprocal sqrt estimate instructions.
  
!  The '__builtin_recipdiv', and '__builtin_recipdivf' functions generate
  multiple instructions to implement division using the reciprocal
  estimate instructions.
  
!  The '__builtin_ppc_get_timebase' and '__builtin_ppc_mftb' functions
  generate instructions to read the Time Base Register.  The
! '__builtin_ppc_get_timebase' function may generate multiple instructions
! and always returns the 64 bits of the Time Base Register.  The
! '__builtin_ppc_mftb' function always generates one instruction and
  returns the Time Base Register value as an unsigned long, throwing away
  the most significant word on 32-bit environments.
  
   Additional built-in functions are available for the 64-bit PowerPC
  family of processors, for efficient use of 128-bit floating point
! ('__float128') values.
  
   The following floating-point built-in functions are available with
! '-mfloat128' and Altivec support.  All of them implement the function
  that is part of the name.
  
       __float128 __builtin_fabsq (__float128)
       __float128 __builtin_copysignq (__float128, __float128)
  
!  The following built-in functions are available with '-mfloat128' and
  Altivec support.
  
! '__float128 __builtin_infq (void)'
!      Similar to '__builtin_inf', except the return type is '__float128'.
  
! '__float128 __builtin_huge_valq (void)'
!      Similar to '__builtin_huge_val', except the return type is
!      '__float128'.
  
! '__float128 __builtin_nanq (void)'
!      Similar to '__builtin_nan', except the return type is '__float128'.
  
! '__float128 __builtin_nansq (void)'
!      Similar to '__builtin_nans', except the return type is
!      '__float128'.
  
   The following built-in functions are available for the PowerPC family
! of processors, starting with ISA 2.06 or later ('-mcpu=power7' or
! '-mpopcntd'):
       long __builtin_bpermd (long, long);
       int __builtin_divwe (int, int);
       unsigned int __builtin_divweu (unsigned int, unsigned int);
       long __builtin_divde (long, long);
       unsigned long __builtin_divdeu (unsigned long, unsigned long);
       unsigned int cdtbcd (unsigned int);
       unsigned int cbcdtd (unsigned int);
       unsigned int addg6s (unsigned int, unsigned int);
  
!  The '__builtin_divde' and '__builtin_divdeu' functions require a 64-bit
! environment supporting ISA 2.06 or later.
  
   The following built-in functions are available for the PowerPC family
! of processors, starting with ISA 3.0 or later ('-mcpu=power9'):
       long long __builtin_darn (void);
       long long __builtin_darn_raw (void);
       int __builtin_darn_32 (void);
*************** of processors, starting with ISA 3.0 or
*** 38923,38964 ****
       int __builtin_dfp_dtstsfi_ov_dd (unsigned int comparison, _Decimal64 value);
       int __builtin_dfp_dtstsfi_ov_td (unsigned int comparison, _Decimal128 value);
  
!  The `__builtin_darn' and `__builtin_darn_raw' functions require a
! 64-bit environment supporting ISA 3.0 or later.  The `__builtin_darn'
  function provides a 64-bit conditioned random number.  The
! `__builtin_darn_raw' function provides a 64-bit raw random number.  The
! `__builtin_darn_32' function provides a 32-bit random number.
  
!  The `__builtin_dfp_dtstsfi_lt' function returns a non-zero value if
! and only if the number of signficant digits of its `value' argument is
! less than its `comparison' argument.  The `__builtin_dfp_dtstsfi_lt_dd'
! and `__builtin_dfp_dtstsfi_lt_td' functions behave similarly, but
! require that the type of the `value' argument be `__Decimal64' and
! `__Decimal128' respectively.
  
!  The `__builtin_dfp_dtstsfi_gt' function returns a non-zero value if
! and only if the number of signficant digits of its `value' argument is
! greater than its `comparison' argument.  The
! `__builtin_dfp_dtstsfi_gt_dd' and `__builtin_dfp_dtstsfi_gt_td'
! functions behave similarly, but require that the type of the `value'
! argument be `__Decimal64' and `__Decimal128' respectively.
  
!  The `__builtin_dfp_dtstsfi_eq' function returns a non-zero value if
! and only if the number of signficant digits of its `value' argument
! equals its `comparison' argument.  The `__builtin_dfp_dtstsfi_eq_dd' and
! `__builtin_dfp_dtstsfi_eq_td' functions behave similarly, but require
! that the type of the `value' argument be `__Decimal64' and
! `__Decimal128' respectively.
  
!  The `__builtin_dfp_dtstsfi_ov' function returns a non-zero value if
! and only if its `value' argument has an undefined number of significant
! digits, such as when `value' is an encoding of `NaN'.  The
! `__builtin_dfp_dtstsfi_ov_dd' and `__builtin_dfp_dtstsfi_ov_td'
! functions behave similarly, but require that the type of the `value'
! argument be `__Decimal64' and `__Decimal128' respectively.
  
   The following built-in functions are available for the PowerPC family
! of processors when hardware decimal floating point (`-mhard-dfp') is
  available:
       long long __builtin_dxex (_Decimal64);
       long long __builtin_dxexq (_Decimal128);
--- 38558,38599 ----
       int __builtin_dfp_dtstsfi_ov_dd (unsigned int comparison, _Decimal64 value);
       int __builtin_dfp_dtstsfi_ov_td (unsigned int comparison, _Decimal128 value);
  
!  The '__builtin_darn' and '__builtin_darn_raw' functions require a
! 64-bit environment supporting ISA 3.0 or later.  The '__builtin_darn'
  function provides a 64-bit conditioned random number.  The
! '__builtin_darn_raw' function provides a 64-bit raw random number.  The
! '__builtin_darn_32' function provides a 32-bit random number.
  
!  The '__builtin_dfp_dtstsfi_lt' function returns a non-zero value if and
! only if the number of signficant digits of its 'value' argument is less
! than its 'comparison' argument.  The '__builtin_dfp_dtstsfi_lt_dd' and
! '__builtin_dfp_dtstsfi_lt_td' functions behave similarly, but require
! that the type of the 'value' argument be '__Decimal64' and
! '__Decimal128' respectively.
  
!  The '__builtin_dfp_dtstsfi_gt' function returns a non-zero value if and
! only if the number of signficant digits of its 'value' argument is
! greater than its 'comparison' argument.  The
! '__builtin_dfp_dtstsfi_gt_dd' and '__builtin_dfp_dtstsfi_gt_td'
! functions behave similarly, but require that the type of the 'value'
! argument be '__Decimal64' and '__Decimal128' respectively.
  
!  The '__builtin_dfp_dtstsfi_eq' function returns a non-zero value if and
! only if the number of signficant digits of its 'value' argument equals
! its 'comparison' argument.  The '__builtin_dfp_dtstsfi_eq_dd' and
! '__builtin_dfp_dtstsfi_eq_td' functions behave similarly, but require
! that the type of the 'value' argument be '__Decimal64' and
! '__Decimal128' respectively.
  
!  The '__builtin_dfp_dtstsfi_ov' function returns a non-zero value if and
! only if its 'value' argument has an undefined number of significant
! digits, such as when 'value' is an encoding of 'NaN'.  The
! '__builtin_dfp_dtstsfi_ov_dd' and '__builtin_dfp_dtstsfi_ov_td'
! functions behave similarly, but require that the type of the 'value'
! argument be '__Decimal64' and '__Decimal128' respectively.
  
   The following built-in functions are available for the PowerPC family
! of processors when hardware decimal floating point ('-mhard-dfp') is
  available:
       long long __builtin_dxex (_Decimal64);
       long long __builtin_dxexq (_Decimal128);
*************** File: gcc.info,  Node: PowerPC AltiVec/V
*** 38990,38996 ****
  GCC provides an interface for the PowerPC family of processors to access
  the AltiVec operations described in Motorola's AltiVec Programming
  Interface Manual.  The interface is made available by including
! `<altivec.h>' and using `-maltivec' and `-mabi=altivec'.  The interface
  supports the following vector types.
  
       vector unsigned char
--- 38625,38631 ----
  GCC provides an interface for the PowerPC family of processors to access
  the AltiVec operations described in Motorola's AltiVec Programming
  Interface Manual.  The interface is made available by including
! '<altivec.h>' and using '-maltivec' and '-mabi=altivec'.  The interface
  supports the following vector types.
  
       vector unsigned char
*************** supports the following vector types.
*** 39007,39021 ****
       vector bool int
       vector float
  
!  If `-mvsx' is used the following additional vector types are
  implemented.
  
       vector unsigned long
       vector signed long
       vector double
  
!  The long types are only implemented for 64-bit code generation, and
! the long type is only used in the floating point/integer conversion
  instructions.
  
   GCC's implementation of the high-level language interface available
--- 38642,38656 ----
       vector bool int
       vector float
  
!  If '-mvsx' is used the following additional vector types are
  implemented.
  
       vector unsigned long
       vector signed long
       vector double
  
!  The long types are only implemented for 64-bit code generation, and the
! long type is only used in the floating point/integer conversion
  instructions.
  
   GCC's implementation of the high-level language interface available
*************** ways.
*** 39028,39045 ****
     * A vector initializer requires no cast if the vector constant is of
       the same type as the variable it is initializing.
  
!    * If `signed' or `unsigned' is omitted, the signedness of the vector
       type is the default signedness of the base type.  The default
       varies depending on the operating system, so a portable program
       should always specify the signedness.
  
!    * Compiling with `-maltivec' adds keywords `__vector', `vector',
!      `__pixel', `pixel', `__bool' and `bool'.  When compiling ISO C,
!      the context-sensitive substitution of the keywords `vector',
!      `pixel' and `bool' is disabled.  To use them, you must include
!      `<altivec.h>' instead.
  
!    * GCC allows using a `typedef' name as the type specifier for a
       vector type.
  
     * For C, overloaded functions are implemented with macros so the
--- 38663,38680 ----
     * A vector initializer requires no cast if the vector constant is of
       the same type as the variable it is initializing.
  
!    * If 'signed' or 'unsigned' is omitted, the signedness of the vector
       type is the default signedness of the base type.  The default
       varies depending on the operating system, so a portable program
       should always specify the signedness.
  
!    * Compiling with '-maltivec' adds keywords '__vector', 'vector',
!      '__pixel', 'pixel', '__bool' and 'bool'.  When compiling ISO C, the
!      context-sensitive substitution of the keywords 'vector', 'pixel'
!      and 'bool' is disabled.  To use them, you must include
!      '<altivec.h>' instead.
  
!    * GCC allows using a 'typedef' name as the type specifier for a
       vector type.
  
     * For C, overloaded functions are implemented with macros so the
*************** ways.
*** 39047,39058 ****
  
              vec_add ((vector signed int){1, 2, 3, 4}, foo);
  
!      Since `vec_add' is a macro, the vector constant in the example is
       treated as four separate arguments.  Wrap the entire argument in
       parentheses for this to work.
  
!  _Note:_ Only the `<altivec.h>' interface is supported.  Internally,
! GCC uses built-in functions to achieve the functionality in the
  aforementioned header file, but they are not supported and are subject
  to change without notice.
  
--- 38682,38693 ----
  
              vec_add ((vector signed int){1, 2, 3, 4}, foo);
  
!      Since 'vec_add' is a macro, the vector constant in the example is
       treated as four separate arguments.  Wrap the entire argument in
       parentheses for this to work.
  
!  _Note:_ Only the '<altivec.h>' interface is supported.  Internally, GCC
! uses built-in functions to achieve the functionality in the
  aforementioned header file, but they are not supported and are subject
  to change without notice.
  
*************** a direct mapping between generic and spe
*** 39062,39068 ****
  generic names are shown here, although the specific operations can also
  be used.
  
!  Arguments that are documented as `const int' require literal integral
  values within the range required for that operation.
  
       vector signed char vec_abs (vector signed char);
--- 38697,38703 ----
  generic names are shown here, although the specific operations can also
  be used.
  
!  Arguments that are documented as 'const int' require literal integral
  values within the range required for that operation.
  
       vector signed char vec_abs (vector signed char);
*************** additional functions are available:
*** 41147,41156 ****
       vector unsigned char vec_xxsldi (vector unsigned char,
                                        vector unsigned char, int);
  
!  Note that the `vec_ld' and `vec_st' built-in functions always generate
! the AltiVec `LVX' and `STVX' instructions even if the VSX instruction
! set is available.  The `vec_vsx_ld' and `vec_vsx_st' built-in functions
! always generate the VSX `LXVD2X', `LXVW4X', `STXVD2X', and `STXVW4X'
  instructions.
  
   If the ISA 2.07 additions to the vector/scalar (power8-vector)
--- 40782,40791 ----
       vector unsigned char vec_xxsldi (vector unsigned char,
                                        vector unsigned char, int);
  
!  Note that the 'vec_ld' and 'vec_st' built-in functions always generate
! the AltiVec 'LVX' and 'STVX' instructions even if the VSX instruction
! set is available.  The 'vec_vsx_ld' and 'vec_vsx_st' built-in functions
! always generate the VSX 'LXVD2X', 'LXVW4X', 'STXVD2X', and 'STXVW4X'
  instructions.
  
   If the ISA 2.07 additions to the vector/scalar (power8-vector)
*************** VECTOR UNSIGNED LONG LONG.
*** 41467,41477 ****
   If the ISA 2.07 additions to the vector/scalar (power8-vector)
  instruction set are available, the following additional functions are
  available for 64-bit targets.  New vector types (VECTOR __INT128_T and
! VECTOR __UINT128_T) are available to hold the __INT128_T and
! __UINT128_T types to use these builtins.
  
!  The normal vector extract, and set operations work on VECTOR
! __INT128_T and VECTOR __UINT128_T types, but the index value must be 0.
  
       vector __int128_t vec_vaddcuq (vector __int128_t, vector __int128_t);
       vector __uint128_t vec_vaddcuq (vector __uint128_t, vector __uint128_t);
--- 41102,41112 ----
   If the ISA 2.07 additions to the vector/scalar (power8-vector)
  instruction set are available, the following additional functions are
  available for 64-bit targets.  New vector types (VECTOR __INT128_T and
! VECTOR __UINT128_T) are available to hold the __INT128_T and __UINT128_T
! types to use these builtins.
  
!  The normal vector extract, and set operations work on VECTOR __INT128_T
! and VECTOR __UINT128_T types, but the index value must be 0.
  
       vector __int128_t vec_vaddcuq (vector __int128_t, vector __int128_t);
       vector __uint128_t vec_vaddcuq (vector __uint128_t, vector __uint128_t);
*************** __INT128_T and VECTOR __UINT128_T types,
*** 41516,41522 ****
       int __builtin_bcdsub_gt (vector __int128_t, vector__int128_t);
       int __builtin_bcdsub_ov (vector __int128_t, vector__int128_t);
  
!  If the ISA 3.0 instruction set additions (`-mcpu=power9') are
  available:
  
       vector long long vec_vctz (vector long long);
--- 41151,41157 ----
       int __builtin_bcdsub_gt (vector __int128_t, vector__int128_t);
       int __builtin_bcdsub_ov (vector __int128_t, vector__int128_t);
  
!  If the ISA 3.0 instruction set additions ('-mcpu=power9') are
  available:
  
       vector long long vec_vctz (vector long long);
*************** available:
*** 41551,41557 ****
       vector long long vec_vprtybd (vector long long);
       vector unsigned long long vec_vprtybd (vector unsigned long long);
  
!  On 64-bit targets, if the ISA 3.0 additions (`-mcpu=power9') are
  available:
  
       vector long vec_vprtyb (vector long);
--- 41186,41192 ----
       vector long long vec_vprtybd (vector long long);
       vector unsigned long long vec_vprtybd (vector unsigned long long);
  
!  On 64-bit targets, if the ISA 3.0 additions ('-mcpu=power9') are
  available:
  
       vector long vec_vprtyb (vector long);
*************** available:
*** 41566,41572 ****
       vector __uint128_t vec_vprtybd (vector __uint128_t);
  
   The following built-in vector functions are available for the PowerPC
! family of processors, starting with ISA 3.0 or later (`-mcpu=power9'):
       __vector unsigned char
       vec_absd (__vector unsigned char arg1, __vector unsigned char arg2);
       __vector unsigned short
--- 41201,41207 ----
       vector __uint128_t vec_vprtybd (vector __uint128_t);
  
   The following built-in vector functions are available for the PowerPC
! family of processors, starting with ISA 3.0 or later ('-mcpu=power9'):
       __vector unsigned char
       vec_absd (__vector unsigned char arg1, __vector unsigned char arg2);
       __vector unsigned short
*************** family of processors, starting with ISA
*** 41586,41616 ****
       __vector unsigned char
       vec_srv (__vector unsigned char src, __vector unsigned char shift_distance);
  
!  The `vec_absd', `vec_absdb', `vec_absdh', and `vec_absdw' built-in
  functions each computes the absolute differences of the pairs of vector
  elements supplied in its two vector arguments, placing the absolute
  differences into the corresponding elements of the vector result.
  
!  The `vec_slv' and `vec_srv' functions operate on all of the bytes of
! their `src' and `shift_distance' arguments in parallel.  The behavior
! of the `vec_slv' is as if there existed a temporary array of 17
! unsigned characters `slv_array' within which elements 0 through 15 are
! the same as the entries in the `src' array and element 16 equals 0.  The
! result returned from the `vec_slv' function is a `__vector' of 16
! unsigned characters within which element `i' is computed using the C
! expression `0xff & (*((unsigned short *)(slv_array + i)) << (0x07 &
! shift_distance[i]))', with this resulting value coerced to the
! `unsigned char' type.  The behavior of the `vec_srv' is as if there
! existed a temporary array of 17 unsigned characters `srv_array' within
! which element 0 equals zero and elements 1 through 16 equal the
! elements 0 through 15 of the `src' array.  The result returned from the
! `vec_srv' function is a `__vector' of 16 unsigned characters within
! which element `i' is computed using the C expression `0xff &
! (*((unsigned short *)(srv_array + i)) >> (0x07 & shift_distance[i]))',
! with this resulting value coerced to the `unsigned char' type.
  
!  If the cryptographic instructions are enabled (`-mcrypto' or
! `-mcpu=power8'), the following builtins are enabled.
  
       vector unsigned long long __builtin_crypto_vsbox (vector unsigned long long);
  
--- 41221,41251 ----
       __vector unsigned char
       vec_srv (__vector unsigned char src, __vector unsigned char shift_distance);
  
!  The 'vec_absd', 'vec_absdb', 'vec_absdh', and 'vec_absdw' built-in
  functions each computes the absolute differences of the pairs of vector
  elements supplied in its two vector arguments, placing the absolute
  differences into the corresponding elements of the vector result.
  
!  The 'vec_slv' and 'vec_srv' functions operate on all of the bytes of
! their 'src' and 'shift_distance' arguments in parallel.  The behavior of
! the 'vec_slv' is as if there existed a temporary array of 17 unsigned
! characters 'slv_array' within which elements 0 through 15 are the same
! as the entries in the 'src' array and element 16 equals 0.  The result
! returned from the 'vec_slv' function is a '__vector' of 16 unsigned
! characters within which element 'i' is computed using the C expression
! '0xff & (*((unsigned short *)(slv_array + i)) << (0x07 &
! shift_distance[i]))', with this resulting value coerced to the 'unsigned
! char' type.  The behavior of the 'vec_srv' is as if there existed a
! temporary array of 17 unsigned characters 'srv_array' within which
! element 0 equals zero and elements 1 through 16 equal the elements 0
! through 15 of the 'src' array.  The result returned from the 'vec_srv'
! function is a '__vector' of 16 unsigned characters within which element
! 'i' is computed using the C expression '0xff & (*((unsigned short
! *)(srv_array + i)) >> (0x07 & shift_distance[i]))', with this resulting
! value coerced to the 'unsigned char' type.
  
!  If the cryptographic instructions are enabled ('-mcrypto' or
! '-mcpu=power8'), the following builtins are enabled.
  
       vector unsigned long long __builtin_crypto_vsbox (vector unsigned long long);
  
*************** with this resulting value coerced to the
*** 41663,41682 ****
                                                        int, int);
  
   The second argument to the __BUILTIN_CRYPTO_VSHASIGMAD and
! __BUILTIN_CRYPTO_VSHASIGMAW builtin functions must be a constant
! integer that is 0 or 1.  The third argument to these builtin functions
! must be a constant integer in the range of 0 to 15.
  
!  If the ISA 3.0 instruction set additions are enabled (`-mcpu=power9'),
  the following additional functions are available for both 32-bit and
  64-bit targets.
  
   vector short vec_xl (int, vector short *); vector short vec_xl (int,
  short *); vector unsigned short vec_xl (int, vector unsigned short *);
! vector unsigned short vec_xl (int, unsigned short *); vector char
! vec_xl (int, vector char *); vector char vec_xl (int, char *); vector
! unsigned char vec_xl (int, vector unsigned char *); vector unsigned
! char vec_xl (int, unsigned char *);
  
   void vec_xst (vector short, int, vector short *); void vec_xst (vector
  short, int, short *); void vec_xst (vector unsigned short, int, vector
--- 41298,41317 ----
                                                        int, int);
  
   The second argument to the __BUILTIN_CRYPTO_VSHASIGMAD and
! __BUILTIN_CRYPTO_VSHASIGMAW builtin functions must be a constant integer
! that is 0 or 1.  The third argument to these builtin functions must be a
! constant integer in the range of 0 to 15.
  
!  If the ISA 3.0 instruction set additions are enabled ('-mcpu=power9'),
  the following additional functions are available for both 32-bit and
  64-bit targets.
  
   vector short vec_xl (int, vector short *); vector short vec_xl (int,
  short *); vector unsigned short vec_xl (int, vector unsigned short *);
! vector unsigned short vec_xl (int, unsigned short *); vector char vec_xl
! (int, vector char *); vector char vec_xl (int, char *); vector unsigned
! char vec_xl (int, vector unsigned char *); vector unsigned char vec_xl
! (int, unsigned char *);
  
   void vec_xst (vector short, int, vector short *); void vec_xst (vector
  short, int, short *); void vec_xst (vector unsigned short, int, vector
*************** between PowerPC and S/390.
*** 41702,41721 ****
  6.59.21.1 PowerPC HTM Low Level Built-in Functions
  ..................................................
  
! The following low level built-in functions are available with `-mhtm'
! or `-mcpu=CPU' where CPU is `power8' or later.  They all generate the
  machine instruction that is part of the name.
  
!  The HTM builtins (with the exception of `__builtin_tbegin') return the
  full 4-bit condition register value set by their associated hardware
! instruction.  The header file `htmintrin.h' defines some macros that can
! be used to decipher the return value.  The `__builtin_tbegin' builtin
  returns a simple true or false value depending on whether a transaction
  was successfully started or not.  The arguments of the builtins match
  exactly the type and order of the associated hardware instruction's
! operands, except for the `__builtin_tcheck' builtin, which does not
! take any input arguments.  Refer to the ISA manual for a description of
! each instruction's operands.
  
       unsigned int __builtin_tbegin (unsigned int)
       unsigned int __builtin_tend (unsigned int)
--- 41337,41356 ----
  6.59.21.1 PowerPC HTM Low Level Built-in Functions
  ..................................................
  
! The following low level built-in functions are available with '-mhtm' or
! '-mcpu=CPU' where CPU is 'power8' or later.  They all generate the
  machine instruction that is part of the name.
  
!  The HTM builtins (with the exception of '__builtin_tbegin') return the
  full 4-bit condition register value set by their associated hardware
! instruction.  The header file 'htmintrin.h' defines some macros that can
! be used to decipher the return value.  The '__builtin_tbegin' builtin
  returns a simple true or false value depending on whether a transaction
  was successfully started or not.  The arguments of the builtins match
  exactly the type and order of the associated hardware instruction's
! operands, except for the '__builtin_tcheck' builtin, which does not take
! any input arguments.  Refer to the ISA manual for a description of each
! instruction's operands.
  
       unsigned int __builtin_tbegin (unsigned int)
       unsigned int __builtin_tend (unsigned int)
*************** some common extended mnemonics of the HT
*** 41740,41748 ****
  
   Note that the semantics of the above HTM builtins are required to mimic
  the locking semantics used for critical sections.  Builtins that are
! used to create a new transaction or restart a suspended transaction
! must have lock acquisition like semantics while those builtins that end
! or suspend a transaction must have lock release like semantics.
  Specifically, this must mimic lock semantics as specified by C++11, for
  example: Lock acquisition is as-if an execution of
  __atomic_exchange_n(&globallock,1,__ATOMIC_ACQUIRE) that returns 0, and
--- 41375,41383 ----
  
   Note that the semantics of the above HTM builtins are required to mimic
  the locking semantics used for critical sections.  Builtins that are
! used to create a new transaction or restart a suspended transaction must
! have lock acquisition like semantics while those builtins that end or
! suspend a transaction must have lock release like semantics.
  Specifically, this must mimic lock semantics as specified by C++11, for
  example: Lock acquisition is as-if an execution of
  __atomic_exchange_n(&globallock,1,__ATOMIC_ACQUIRE) that returns 0, and
*************** the builtins in a way that would violate
*** 41756,41769 ****
  accomplished by adding memory barriers to the associated HTM
  instructions (which is a conservative approach to provide acquire and
  release semantics).  Earlier versions of the compiler did not treat the
! HTM instructions as memory barriers.  A `__TM_FENCE__' macro has been
  added, which can be used to determine whether the current compiler
! treats HTM instructions as memory barriers or not.  This allows the
! user to explicitly add memory barriers to their code when using an
! older version of the compiler.
  
!  The following set of built-in functions are available to gain access
! to the HTM specific special purpose registers.
  
       unsigned long __builtin_get_texasr (void)
       unsigned long __builtin_get_texasru (void)
--- 41391,41404 ----
  accomplished by adding memory barriers to the associated HTM
  instructions (which is a conservative approach to provide acquire and
  release semantics).  Earlier versions of the compiler did not treat the
! HTM instructions as memory barriers.  A '__TM_FENCE__' macro has been
  added, which can be used to determine whether the current compiler
! treats HTM instructions as memory barriers or not.  This allows the user
! to explicitly add memory barriers to their code when using an older
! version of the compiler.
  
!  The following set of built-in functions are available to gain access to
! the HTM specific special purpose registers.
  
       unsigned long __builtin_get_texasr (void)
       unsigned long __builtin_get_texasru (void)
*************** to the HTM specific special purpose regi
*** 41809,41815 ****
  
   One final built-in function has been added that returns the value of
  the 2-bit Transaction State field of the Machine Status Register (MSR)
! as stored in `CR0'.
  
       unsigned long __builtin_ttest (void)
  
--- 41444,41450 ----
  
   One final built-in function has been added that returns the value of
  the 2-bit Transaction State field of the Machine Status Register (MSR)
! as stored in 'CR0'.
  
       unsigned long __builtin_ttest (void)
  
*************** using the following code example:
*** 41837,41846 ****
  .................................................
  
  The following high level HTM interface is made available by including
! `<htmxlintrin.h>' and using `-mhtm' or `-mcpu=CPU' where CPU is
! `power8' or later.  This interface is common between PowerPC and S/390,
! allowing users to write one HTM source implementation that can be
! compiled and executed on either system.
  
       long __TM_simple_begin (void)
       long __TM_begin (void* const TM_buff)
--- 41472,41481 ----
  .................................................
  
  The following high level HTM interface is made available by including
! '<htmxlintrin.h>' and using '-mhtm' or '-mcpu=CPU' where CPU is 'power8'
! or later.  This interface is common between PowerPC and S/390, allowing
! users to write one HTM source implementation that can be compiled and
! executed on either system.
  
       long __TM_simple_begin (void)
       long __TM_begin (void* const TM_buff)
*************** the C programming language via the use o
*** 41907,41998 ****
  following functions are supported:
  
   -- Built-in Function: void __builtin_rx_brk (void)
!      Generates the `brk' machine instruction.
  
   -- Built-in Function: void __builtin_rx_clrpsw (int)
!      Generates the `clrpsw' machine instruction to clear the specified
       bit in the processor status word.
  
   -- Built-in Function: void __builtin_rx_int (int)
!      Generates the `int' machine instruction to generate an interrupt
       with the specified value.
  
   -- Built-in Function: void __builtin_rx_machi (int, int)
!      Generates the `machi' machine instruction to add the result of
       multiplying the top 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: void __builtin_rx_maclo (int, int)
!      Generates the `maclo' machine instruction to add the result of
       multiplying the bottom 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: void __builtin_rx_mulhi (int, int)
!      Generates the `mulhi' machine instruction to place the result of
       multiplying the top 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: void __builtin_rx_mullo (int, int)
!      Generates the `mullo' machine instruction to place the result of
       multiplying the bottom 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: int __builtin_rx_mvfachi (void)
!      Generates the `mvfachi' machine instruction to read the top 32
!      bits of the accumulator.
  
   -- Built-in Function: int __builtin_rx_mvfacmi (void)
!      Generates the `mvfacmi' machine instruction to read the middle 32
       bits of the accumulator.
  
   -- Built-in Function: int __builtin_rx_mvfc (int)
!      Generates the `mvfc' machine instruction which reads the control
       register specified in its argument and returns its value.
  
   -- Built-in Function: void __builtin_rx_mvtachi (int)
!      Generates the `mvtachi' machine instruction to set the top 32 bits
       of the accumulator.
  
   -- Built-in Function: void __builtin_rx_mvtaclo (int)
!      Generates the `mvtaclo' machine instruction to set the bottom 32
       bits of the accumulator.
  
   -- Built-in Function: void __builtin_rx_mvtc (int reg, int val)
!      Generates the `mvtc' machine instruction which sets control
!      register number `reg' to `val'.
  
   -- Built-in Function: void __builtin_rx_mvtipl (int)
!      Generates the `mvtipl' machine instruction set the interrupt
       priority level.
  
   -- Built-in Function: void __builtin_rx_racw (int)
!      Generates the `racw' machine instruction to round the accumulator
       according to the specified mode.
  
   -- Built-in Function: int __builtin_rx_revw (int)
!      Generates the `revw' machine instruction which swaps the bytes in
       the argument so that bits 0-7 now occupy bits 8-15 and vice versa,
       and also bits 16-23 occupy bits 24-31 and vice versa.
  
   -- Built-in Function: void __builtin_rx_rmpa (void)
!      Generates the `rmpa' machine instruction which initiates a
!      repeated multiply and accumulate sequence.
  
   -- Built-in Function: void __builtin_rx_round (float)
!      Generates the `round' machine instruction which returns the
       floating-point argument rounded according to the current rounding
       mode set in the floating-point status word register.
  
   -- Built-in Function: int __builtin_rx_sat (int)
!      Generates the `sat' machine instruction which returns the
!      saturated value of the argument.
  
   -- Built-in Function: void __builtin_rx_setpsw (int)
!      Generates the `setpsw' machine instruction to set the specified
!      bit in the processor status word.
  
   -- Built-in Function: void __builtin_rx_wait (void)
!      Generates the `wait' machine instruction.
  
  
  File: gcc.info,  Node: S/390 System z Built-in Functions,  Next: SH Built-in Functions,  Prev: RX Built-in Functions,  Up: Target Builtins
--- 41542,41633 ----
  following functions are supported:
  
   -- Built-in Function: void __builtin_rx_brk (void)
!      Generates the 'brk' machine instruction.
  
   -- Built-in Function: void __builtin_rx_clrpsw (int)
!      Generates the 'clrpsw' machine instruction to clear the specified
       bit in the processor status word.
  
   -- Built-in Function: void __builtin_rx_int (int)
!      Generates the 'int' machine instruction to generate an interrupt
       with the specified value.
  
   -- Built-in Function: void __builtin_rx_machi (int, int)
!      Generates the 'machi' machine instruction to add the result of
       multiplying the top 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: void __builtin_rx_maclo (int, int)
!      Generates the 'maclo' machine instruction to add the result of
       multiplying the bottom 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: void __builtin_rx_mulhi (int, int)
!      Generates the 'mulhi' machine instruction to place the result of
       multiplying the top 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: void __builtin_rx_mullo (int, int)
!      Generates the 'mullo' machine instruction to place the result of
       multiplying the bottom 16 bits of the two arguments into the
       accumulator.
  
   -- Built-in Function: int __builtin_rx_mvfachi (void)
!      Generates the 'mvfachi' machine instruction to read the top 32 bits
!      of the accumulator.
  
   -- Built-in Function: int __builtin_rx_mvfacmi (void)
!      Generates the 'mvfacmi' machine instruction to read the middle 32
       bits of the accumulator.
  
   -- Built-in Function: int __builtin_rx_mvfc (int)
!      Generates the 'mvfc' machine instruction which reads the control
       register specified in its argument and returns its value.
  
   -- Built-in Function: void __builtin_rx_mvtachi (int)
!      Generates the 'mvtachi' machine instruction to set the top 32 bits
       of the accumulator.
  
   -- Built-in Function: void __builtin_rx_mvtaclo (int)
!      Generates the 'mvtaclo' machine instruction to set the bottom 32
       bits of the accumulator.
  
   -- Built-in Function: void __builtin_rx_mvtc (int reg, int val)
!      Generates the 'mvtc' machine instruction which sets control
!      register number 'reg' to 'val'.
  
   -- Built-in Function: void __builtin_rx_mvtipl (int)
!      Generates the 'mvtipl' machine instruction set the interrupt
       priority level.
  
   -- Built-in Function: void __builtin_rx_racw (int)
!      Generates the 'racw' machine instruction to round the accumulator
       according to the specified mode.
  
   -- Built-in Function: int __builtin_rx_revw (int)
!      Generates the 'revw' machine instruction which swaps the bytes in
       the argument so that bits 0-7 now occupy bits 8-15 and vice versa,
       and also bits 16-23 occupy bits 24-31 and vice versa.
  
   -- Built-in Function: void __builtin_rx_rmpa (void)
!      Generates the 'rmpa' machine instruction which initiates a repeated
!      multiply and accumulate sequence.
  
   -- Built-in Function: void __builtin_rx_round (float)
!      Generates the 'round' machine instruction which returns the
       floating-point argument rounded according to the current rounding
       mode set in the floating-point status word register.
  
   -- Built-in Function: int __builtin_rx_sat (int)
!      Generates the 'sat' machine instruction which returns the saturated
!      value of the argument.
  
   -- Built-in Function: void __builtin_rx_setpsw (int)
!      Generates the 'setpsw' machine instruction to set the specified bit
!      in the processor status word.
  
   -- Built-in Function: void __builtin_rx_wait (void)
!      Generates the 'wait' machine instruction.
  
  
  File: gcc.info,  Node: S/390 System z Built-in Functions,  Next: SH Built-in Functions,  Prev: RX Built-in Functions,  Up: Target Builtins
*************** File: gcc.info,  Node: S/390 System z Bu
*** 42001,42104 ****
  -----------------------------------------
  
   -- Built-in Function: int __builtin_tbegin (void*)
!      Generates the `tbegin' machine instruction starting a
!      non-constrained hardware transaction.  If the parameter is
!      non-NULL the memory area is used to store the transaction
!      diagnostic buffer and will be passed as first operand to `tbegin'.
!      This buffer can be defined using the `struct __htm_tdb' C struct
!      defined in `htmintrin.h' and must reside on a double-word
!      boundary.  The second tbegin operand is set to `0xff0c'. This
!      enables save/restore of all GPRs and disables aborts for FPR and AR
       manipulations inside the transaction body.  The condition code set
       by the tbegin instruction is returned as integer value.  The tbegin
       instruction by definition overwrites the content of all FPRs.  The
       compiler will generate code which saves and restores the FPRs.  For
!      soft-float code it is recommended to used the `*_nofloat' variant.
!      In order to prevent a TDB from being written it is required to
!      pass a constant zero value as parameter.  Passing a zero value
!      through a variable is not sufficient.  Although modifications of
!      access registers inside the transaction will not trigger an
!      transaction abort it is not supported to actually modify them.
!      Access registers do not get saved when entering a transaction.
!      They will have undefined state when reaching the abort code.
  
   Macros for the possible return codes of tbegin are defined in the
! `htmintrin.h' header file:
  
! `_HTM_TBEGIN_STARTED'
!      `tbegin' has been executed as part of normal processing.  The
       transaction body is supposed to be executed.
! 
! `_HTM_TBEGIN_INDETERMINATE'
       The transaction was aborted due to an indeterminate condition which
       might be persistent.
! 
! `_HTM_TBEGIN_TRANSIENT'
       The transaction aborted due to a transient failure.  The
       transaction should be re-executed in that case.
! 
! `_HTM_TBEGIN_PERSISTENT'
       The transaction aborted due to a persistent failure.  Re-execution
       under same circumstances will not be productive.
  
   -- Macro: _HTM_FIRST_USER_ABORT_CODE
!      The `_HTM_FIRST_USER_ABORT_CODE' defined in `htmintrin.h'
!      specifies the first abort code which can be used for
!      `__builtin_tabort'.  Values below this threshold are reserved for
!      machine use.
  
   -- Data type: struct __htm_tdb
!      The `struct __htm_tdb' defined in `htmintrin.h' describes the
       structure of the transaction diagnostic block as specified in the
       Principles of Operation manual chapter 5-91.
  
   -- Built-in Function: int __builtin_tbegin_nofloat (void*)
!      Same as `__builtin_tbegin' but without FPR saves and restores.
       Using this variant in code making use of FPRs will leave the FPRs
       in undefined state when entering the transaction abort handler
       code.
  
   -- Built-in Function: int __builtin_tbegin_retry (void*, int)
!      In addition to `__builtin_tbegin' a loop for transient failures is
       generated.  If tbegin returns a condition code of 2 the transaction
       will be retried as often as specified in the second argument.  The
       perform processor assist instruction is used to tell the CPU about
       the number of fails so far.
  
   -- Built-in Function: int __builtin_tbegin_retry_nofloat (void*, int)
!      Same as `__builtin_tbegin_retry' but without FPR saves and
       restores.  Using this variant in code making use of FPRs will leave
       the FPRs in undefined state when entering the transaction abort
       handler code.
  
   -- Built-in Function: void __builtin_tbeginc (void)
!      Generates the `tbeginc' machine instruction starting a constrained
!      hardware transaction.  The second operand is set to `0xff08'.
  
   -- Built-in Function: int __builtin_tend (void)
!      Generates the `tend' machine instruction finishing a transaction
       and making the changes visible to other threads.  The condition
       code generated by tend is returned as integer value.
  
   -- Built-in Function: void __builtin_tabort (int)
!      Generates the `tabort' machine instruction with the specified
!      abort code.  Abort codes from 0 through 255 are reserved and will
!      result in an error message.
  
   -- Built-in Function: void __builtin_tx_assist (int)
!      Generates the `ppa rX,rY,1' machine instruction.  Where the
!      integer parameter is loaded into rX and a value of zero is loaded
!      into rY.  The integer parameter specifies the number of times the
!      transaction repeatedly aborted.
  
   -- Built-in Function: int __builtin_tx_nesting_depth (void)
!      Generates the `etnd' machine instruction.  The current nesting
       depth is returned as integer value.  For a nesting depth of 0 the
       code is not executed as part of an transaction.
  
   -- Built-in Function: void __builtin_non_tx_store (uint64_t *,
            uint64_t)
!      Generates the `ntstg' machine instruction.  The second argument is
       written to the first arguments location.  The store operation will
       not be rolled-back in case of an transaction abort.
  
--- 41636,41736 ----
  -----------------------------------------
  
   -- Built-in Function: int __builtin_tbegin (void*)
!      Generates the 'tbegin' machine instruction starting a
!      non-constrained hardware transaction.  If the parameter is non-NULL
!      the memory area is used to store the transaction diagnostic buffer
!      and will be passed as first operand to 'tbegin'.  This buffer can
!      be defined using the 'struct __htm_tdb' C struct defined in
!      'htmintrin.h' and must reside on a double-word boundary.  The
!      second tbegin operand is set to '0xff0c'.  This enables
!      save/restore of all GPRs and disables aborts for FPR and AR
       manipulations inside the transaction body.  The condition code set
       by the tbegin instruction is returned as integer value.  The tbegin
       instruction by definition overwrites the content of all FPRs.  The
       compiler will generate code which saves and restores the FPRs.  For
!      soft-float code it is recommended to used the '*_nofloat' variant.
!      In order to prevent a TDB from being written it is required to pass
!      a constant zero value as parameter.  Passing a zero value through a
!      variable is not sufficient.  Although modifications of access
!      registers inside the transaction will not trigger an transaction
!      abort it is not supported to actually modify them.  Access
!      registers do not get saved when entering a transaction.  They will
!      have undefined state when reaching the abort code.
  
   Macros for the possible return codes of tbegin are defined in the
! 'htmintrin.h' header file:
  
! '_HTM_TBEGIN_STARTED'
!      'tbegin' has been executed as part of normal processing.  The
       transaction body is supposed to be executed.
! '_HTM_TBEGIN_INDETERMINATE'
       The transaction was aborted due to an indeterminate condition which
       might be persistent.
! '_HTM_TBEGIN_TRANSIENT'
       The transaction aborted due to a transient failure.  The
       transaction should be re-executed in that case.
! '_HTM_TBEGIN_PERSISTENT'
       The transaction aborted due to a persistent failure.  Re-execution
       under same circumstances will not be productive.
  
   -- Macro: _HTM_FIRST_USER_ABORT_CODE
!      The '_HTM_FIRST_USER_ABORT_CODE' defined in 'htmintrin.h' specifies
!      the first abort code which can be used for '__builtin_tabort'.
!      Values below this threshold are reserved for machine use.
  
   -- Data type: struct __htm_tdb
!      The 'struct __htm_tdb' defined in 'htmintrin.h' describes the
       structure of the transaction diagnostic block as specified in the
       Principles of Operation manual chapter 5-91.
  
   -- Built-in Function: int __builtin_tbegin_nofloat (void*)
!      Same as '__builtin_tbegin' but without FPR saves and restores.
       Using this variant in code making use of FPRs will leave the FPRs
       in undefined state when entering the transaction abort handler
       code.
  
   -- Built-in Function: int __builtin_tbegin_retry (void*, int)
!      In addition to '__builtin_tbegin' a loop for transient failures is
       generated.  If tbegin returns a condition code of 2 the transaction
       will be retried as often as specified in the second argument.  The
       perform processor assist instruction is used to tell the CPU about
       the number of fails so far.
  
   -- Built-in Function: int __builtin_tbegin_retry_nofloat (void*, int)
!      Same as '__builtin_tbegin_retry' but without FPR saves and
       restores.  Using this variant in code making use of FPRs will leave
       the FPRs in undefined state when entering the transaction abort
       handler code.
  
   -- Built-in Function: void __builtin_tbeginc (void)
!      Generates the 'tbeginc' machine instruction starting a constrained
!      hardware transaction.  The second operand is set to '0xff08'.
  
   -- Built-in Function: int __builtin_tend (void)
!      Generates the 'tend' machine instruction finishing a transaction
       and making the changes visible to other threads.  The condition
       code generated by tend is returned as integer value.
  
   -- Built-in Function: void __builtin_tabort (int)
!      Generates the 'tabort' machine instruction with the specified abort
!      code.  Abort codes from 0 through 255 are reserved and will result
!      in an error message.
  
   -- Built-in Function: void __builtin_tx_assist (int)
!      Generates the 'ppa rX,rY,1' machine instruction.  Where the integer
!      parameter is loaded into rX and a value of zero is loaded into rY.
!      The integer parameter specifies the number of times the transaction
!      repeatedly aborted.
  
   -- Built-in Function: int __builtin_tx_nesting_depth (void)
!      Generates the 'etnd' machine instruction.  The current nesting
       depth is returned as integer value.  For a nesting depth of 0 the
       code is not executed as part of an transaction.
  
   -- Built-in Function: void __builtin_non_tx_store (uint64_t *,
            uint64_t)
! 
!      Generates the 'ntstg' machine instruction.  The second argument is
       written to the first arguments location.  The store operation will
       not be rolled-back in case of an transaction abort.
  
*************** The following built-in functions are sup
*** 42112,42130 ****
  SH4 families of processors:
  
   -- Built-in Function: void __builtin_set_thread_pointer (void *PTR)
!      Sets the `GBR' register to the specified value PTR.  This is
       usually used by system code that manages threads and execution
       contexts.  The compiler normally does not generate code that
!      modifies the contents of `GBR' and thus the value is preserved
!      across function calls.  Changing the `GBR' value in user code must
!      be done with caution, since the compiler might use `GBR' in order
       to access thread local variables.
  
- 
   -- Built-in Function: void * __builtin_thread_pointer (void)
!      Returns the value that is currently set in the `GBR' register.
       Memory loads and stores that use the thread pointer as a base
!      address are turned into `GBR' based displacement loads and stores,
       if possible.  For example:
            struct my_tcb
            {
--- 41744,41761 ----
  SH4 families of processors:
  
   -- Built-in Function: void __builtin_set_thread_pointer (void *PTR)
!      Sets the 'GBR' register to the specified value PTR.  This is
       usually used by system code that manages threads and execution
       contexts.  The compiler normally does not generate code that
!      modifies the contents of 'GBR' and thus the value is preserved
!      across function calls.  Changing the 'GBR' value in user code must
!      be done with caution, since the compiler might use 'GBR' in order
       to access thread local variables.
  
   -- Built-in Function: void * __builtin_thread_pointer (void)
!      Returns the value that is currently set in the 'GBR' register.
       Memory loads and stores that use the thread pointer as a base
!      address are turned into 'GBR' based displacement loads and stores,
       if possible.  For example:
            struct my_tcb
            {
*************** SH4 families of processors:
*** 42133,42147 ****
  
            int get_tcb_value (void)
            {
!             // Generate `mov.l @(8,gbr),r0' instruction
              return ((my_tcb*)__builtin_thread_pointer ())->c;
            }
  
   -- Built-in Function: unsigned int __builtin_sh_get_fpscr (void)
!      Returns the value that is currently set in the `FPSCR' register.
  
   -- Built-in Function: void __builtin_sh_set_fpscr (unsigned int VAL)
!      Sets the `FPSCR' register to the specified value VAL, while
       preserving the current values of the FR, SZ and PR bits.
  
  
--- 41764,41779 ----
  
            int get_tcb_value (void)
            {
!             // Generate 'mov.l @(8,gbr),r0' instruction
              return ((my_tcb*)__builtin_thread_pointer ())->c;
            }
  
+ 
   -- Built-in Function: unsigned int __builtin_sh_get_fpscr (void)
!      Returns the value that is currently set in the 'FPSCR' register.
  
   -- Built-in Function: void __builtin_sh_set_fpscr (unsigned int VAL)
!      Sets the 'FPSCR' register to the specified value VAL, while
       preserving the current values of the FR, SZ and PR bits.
  
  
*************** File: gcc.info,  Node: SPARC VIS Built-i
*** 42152,42160 ****
  
  GCC supports SIMD operations on the SPARC using both the generic vector
  extensions (*note Vector Extensions::) as well as built-in functions for
! the SPARC Visual Instruction Set (VIS).  When you use the `-mvis'
! switch, the VIS extension is exposed as the following built-in
! functions:
  
       typedef int v1si __attribute__ ((vector_size (4)));
       typedef int v2si __attribute__ ((vector_size (8)));
--- 41784,41791 ----
  
  GCC supports SIMD operations on the SPARC using both the generic vector
  extensions (*note Vector Extensions::) as well as built-in functions for
! the SPARC Visual Instruction Set (VIS). When you use the '-mvis' switch,
! the VIS extension is exposed as the following built-in functions:
  
       typedef int v1si __attribute__ ((vector_size (4)));
       typedef int v2si __attribute__ ((vector_size (8)));
*************** functions:
*** 42219,42225 ****
       long __builtin_vis_array16 (long, long);
       long __builtin_vis_array32 (long, long);
  
!  When you use the `-mvis2' switch, the VIS version 2.0 built-in
  functions also become available:
  
       long __builtin_vis_bmask (long, long);
--- 41850,41856 ----
       long __builtin_vis_array16 (long, long);
       long __builtin_vis_array32 (long, long);
  
!  When you use the '-mvis2' switch, the VIS version 2.0 built-in
  functions also become available:
  
       long __builtin_vis_bmask (long, long);
*************** functions also become available:
*** 42235,42241 ****
       long __builtin_vis_edge32n (void *, void *);
       long __builtin_vis_edge32ln (void *, void *);
  
!  When you use the `-mvis3' switch, the VIS version 3.0 built-in
  functions also become available:
  
       void __builtin_vis_cmask8 (long);
--- 41866,41872 ----
       long __builtin_vis_edge32n (void *, void *);
       long __builtin_vis_edge32ln (void *, void *);
  
!  When you use the '-mvis3' switch, the VIS version 3.0 built-in
  functions also become available:
  
       void __builtin_vis_cmask8 (long);
*************** functions also become available:
*** 42285,42291 ****
       int64_t __builtin_vis_xmulx (int64_t, int64_t);
       int64_t __builtin_vis_xmulxhi (int64_t, int64_t);
  
!  When you use the `-mvis4' switch, the VIS version 4.0 built-in
  functions also become available:
  
       v8qi __builtin_vis_fpadd8 (v8qi, v8qi);
--- 41916,41922 ----
       int64_t __builtin_vis_xmulx (int64_t, int64_t);
       int64_t __builtin_vis_xmulxhi (int64_t, int64_t);
  
!  When you use the '-mvis4' switch, the VIS version 4.0 built-in
  functions also become available:
  
       v8qi __builtin_vis_fpadd8 (v8qi, v8qi);
*************** implementation differs in several ways.
*** 42338,42352 ****
     * A vector initializer requires no cast if the vector constant is of
       the same type as the variable it is initializing.
  
!    * If `signed' or `unsigned' is omitted, the signedness of the vector
       type is the default signedness of the base type.  The default
       varies depending on the operating system, so a portable program
       should always specify the signedness.
  
!    * By default, the keyword `__vector' is added. The macro `vector' is
!      defined in `<spu_intrinsics.h>' and can be undefined.
  
!    * GCC allows using a `typedef' name as the type specifier for a
       vector type.
  
     * For C, overloaded functions are implemented with macros so the
--- 41969,41983 ----
     * A vector initializer requires no cast if the vector constant is of
       the same type as the variable it is initializing.
  
!    * If 'signed' or 'unsigned' is omitted, the signedness of the vector
       type is the default signedness of the base type.  The default
       varies depending on the operating system, so a portable program
       should always specify the signedness.
  
!    * By default, the keyword '__vector' is added.  The macro 'vector' is
!      defined in '<spu_intrinsics.h>' and can be undefined.
  
!    * GCC allows using a 'typedef' name as the type specifier for a
       vector type.
  
     * For C, overloaded functions are implemented with macros so the
*************** implementation differs in several ways.
*** 42354,42368 ****
  
              spu_add ((vector signed int){1, 2, 3, 4}, foo);
  
!      Since `spu_add' is a macro, the vector constant in the example is
       treated as four separate arguments.  Wrap the entire argument in
       parentheses for this to work.
  
!    * The extended version of `__builtin_expect' is not supported.
! 
  
   _Note:_ Only the interface described in the aforementioned
! specification is supported. Internally, GCC uses built-in functions to
  implement the required functionality, but these are not supported and
  are subject to change without notice.
  
--- 41985,41998 ----
  
              spu_add ((vector signed int){1, 2, 3, 4}, foo);
  
!      Since 'spu_add' is a macro, the vector constant in the example is
       treated as four separate arguments.  Wrap the entire argument in
       parentheses for this to work.
  
!    * The extended version of '__builtin_expect' is not supported.
  
   _Note:_ Only the interface described in the aforementioned
! specification is supported.  Internally, GCC uses built-in functions to
  implement the required functionality, but these are not supported and
  are subject to change without notice.
  
*************** File: gcc.info,  Node: TI C6X Built-in F
*** 42374,42380 ****
  
  GCC provides intrinsics to access certain instructions of the TI C6X
  processors.  These intrinsics, listed below, are available after
! inclusion of the `c6x_intrinsics.h' header file.  They map directly to
  C6X instructions.
  
  
--- 42004,42010 ----
  
  GCC provides intrinsics to access certain instructions of the TI C6X
  processors.  These intrinsics, listed below, are available after
! inclusion of the 'c6x_intrinsics.h' header file.  They map directly to
  C6X instructions.
  
  
*************** C6X instructions.
*** 42405,42410 ****
--- 42035,42041 ----
       int _abs (int)
       int _abs2 (int)
  
+ 
  
  File: gcc.info,  Node: TILE-Gx Built-in Functions,  Next: TILEPro Built-in Functions,  Prev: TI C6X Built-in Functions,  Up: Target Builtins
  
*************** processor.  The intrinsics are of the fo
*** 42417,42422 ****
--- 42048,42054 ----
  
       unsigned long long __insn_OP (...)
  
+ 
   Where OP is the name of the instruction.  Refer to the ISA manual for
  the complete list of instructions.
  
*************** The intrinsics are:
*** 42433,42441 ****
       void __tile_idn_send (unsigned long long)
       void __tile_udn_send (unsigned long long)
  
!  The intrinsic `void __tile_network_barrier (void)' is used to
! guarantee that no network operations before it are reordered with those
! after it.
  
  
  File: gcc.info,  Node: TILEPro Built-in Functions,  Next: x86 Built-in Functions,  Prev: TILE-Gx Built-in Functions,  Up: Target Builtins
--- 42065,42073 ----
       void __tile_idn_send (unsigned long long)
       void __tile_udn_send (unsigned long long)
  
! 
!  The intrinsic 'void __tile_network_barrier (void)' is used to guarantee
! that no network operations before it are reordered with those after it.
  
  
  File: gcc.info,  Node: TILEPro Built-in Functions,  Next: x86 Built-in Functions,  Prev: TILE-Gx Built-in Functions,  Up: Target Builtins
*************** processor.  The intrinsics are of the fo
*** 42449,42454 ****
--- 42081,42087 ----
  
       unsigned __insn_OP (...)
  
+ 
  where OP is the name of the instruction.  Refer to the ISA manual for
  the complete list of instructions.
  
*************** The intrinsics are:
*** 42467,42475 ****
       void __tile_sn_send (unsigned)
       void __tile_udn_send (unsigned)
  
!  The intrinsic `void __tile_network_barrier (void)' is used to
! guarantee that no network operations before it are reordered with those
! after it.
  
  
  File: gcc.info,  Node: x86 Built-in Functions,  Next: x86 transactional memory intrinsics,  Prev: TILEPro Built-in Functions,  Up: Target Builtins
--- 42100,42108 ----
       void __tile_sn_send (unsigned)
       void __tile_udn_send (unsigned)
  
! 
!  The intrinsic 'void __tile_network_barrier (void)' is used to guarantee
! that no network operations before it are reordered with those after it.
  
  
  File: gcc.info,  Node: x86 Built-in Functions,  Next: x86 transactional memory intrinsics,  Prev: TILEPro Built-in Functions,  Up: Target Builtins
*************** File: gcc.info,  Node: x86 Built-in Func
*** 42480,42512 ****
  These built-in functions are available for the x86-32 and x86-64 family
  of computers, depending on the command-line switches used.
  
!  If you specify command-line switches such as `-msse', the compiler
  could use the extended instruction sets even if the built-ins are not
  used explicitly in the program.  For this reason, applications that
  perform run-time CPU detection must compile separate files for each
! supported architecture, using the appropriate flags.  In particular,
! the file containing the CPU detection code should be compiled without
! these options.
  
   The following machine modes are available for use with MMX built-in
! functions (*note Vector Extensions::): `V2SI' for a vector of two
! 32-bit integers, `V4HI' for a vector of four 16-bit integers, and
! `V8QI' for a vector of eight 8-bit integers.  Some of the built-in
! functions operate on MMX registers as a whole 64-bit entity, these use
! `V1DI' as their mode.
  
!  If 3DNow! extensions are enabled, `V2SF' is used as a mode for a vector
  of two 32-bit floating-point values.
  
!  If SSE extensions are enabled, `V4SF' is used for a vector of four
  32-bit floating-point values.  Some instructions use a vector of four
! 32-bit integers, these use `V4SI'.  Finally, some instructions operate
  on an entire vector register, interpreting it as a 128-bit integer,
! these use mode `TI'.
  
   In 64-bit mode, the x86-64 family of processors uses additional
! built-in functions for efficient use of `TF' (`__float128') 128-bit
! floating point and `TC' 128-bit complex floating-point values.
  
   The following floating-point built-in functions are available in 64-bit
  mode.  All of them implement the function that is part of the name.
--- 42113,42145 ----
  These built-in functions are available for the x86-32 and x86-64 family
  of computers, depending on the command-line switches used.
  
!  If you specify command-line switches such as '-msse', the compiler
  could use the extended instruction sets even if the built-ins are not
  used explicitly in the program.  For this reason, applications that
  perform run-time CPU detection must compile separate files for each
! supported architecture, using the appropriate flags.  In particular, the
! file containing the CPU detection code should be compiled without these
! options.
  
   The following machine modes are available for use with MMX built-in
! functions (*note Vector Extensions::): 'V2SI' for a vector of two 32-bit
! integers, 'V4HI' for a vector of four 16-bit integers, and 'V8QI' for a
! vector of eight 8-bit integers.  Some of the built-in functions operate
! on MMX registers as a whole 64-bit entity, these use 'V1DI' as their
! mode.
  
!  If 3DNow! extensions are enabled, 'V2SF' is used as a mode for a vector
  of two 32-bit floating-point values.
  
!  If SSE extensions are enabled, 'V4SF' is used for a vector of four
  32-bit floating-point values.  Some instructions use a vector of four
! 32-bit integers, these use 'V4SI'.  Finally, some instructions operate
  on an entire vector register, interpreting it as a 128-bit integer,
! these use mode 'TI'.
  
   In 64-bit mode, the x86-64 family of processors uses additional
! built-in functions for efficient use of 'TF' ('__float128') 128-bit
! floating point and 'TC' 128-bit complex floating-point values.
  
   The following floating-point built-in functions are available in 64-bit
  mode.  All of them implement the function that is part of the name.
*************** mode.  All of them implement the functio
*** 42516,42534 ****
  
   The following built-in function is always available.
  
! `void __builtin_ia32_pause (void)'
!      Generates the `pause' machine instruction with a compiler memory
       barrier.
  
   The following floating-point built-in functions are made available in
  the 64-bit mode.
  
! `__float128 __builtin_infq (void)'
!      Similar to `__builtin_inf', except the return type is `__float128'.  
  
! `__float128 __builtin_huge_valq (void)'
!      Similar to `__builtin_huge_val', except the return type is
!      `__float128'.  
  
   The following built-in functions are always available and can be used
  to check the target platform type.
--- 42149,42167 ----
  
   The following built-in function is always available.
  
! 'void __builtin_ia32_pause (void)'
!      Generates the 'pause' machine instruction with a compiler memory
       barrier.
  
   The following floating-point built-in functions are made available in
  the 64-bit mode.
  
! '__float128 __builtin_infq (void)'
!      Similar to '__builtin_inf', except the return type is '__float128'.
  
! '__float128 __builtin_huge_valq (void)'
!      Similar to '__builtin_huge_val', except the return type is
!      '__float128'.
  
   The following built-in functions are always available and can be used
  to check the target platform type.
*************** to check the target platform type.
*** 42537,42550 ****
       This function runs the CPU detection code to check the type of CPU
       and the features supported.  This built-in function needs to be
       invoked along with the built-in functions to check CPU type and
!      features, `__builtin_cpu_is' and `__builtin_cpu_supports', only
       when used in a function that is executed before any constructors
       are called.  The CPU detection code is automatically executed in a
       very high priority constructor.
  
!      For example, this function has to be used in `ifunc' resolvers that
!      check for CPU type using the built-in functions `__builtin_cpu_is'
!      and `__builtin_cpu_supports', or in constructors on targets that
       don't support constructor priority.
  
            static void (*resolve_memcpy (void)) (void)
--- 42170,42183 ----
       This function runs the CPU detection code to check the type of CPU
       and the features supported.  This built-in function needs to be
       invoked along with the built-in functions to check CPU type and
!      features, '__builtin_cpu_is' and '__builtin_cpu_supports', only
       when used in a function that is executed before any constructors
       are called.  The CPU detection code is automatically executed in a
       very high priority constructor.
  
!      For example, this function has to be used in 'ifunc' resolvers that
!      check for CPU type using the built-in functions '__builtin_cpu_is'
!      and '__builtin_cpu_supports', or in constructors on targets that
       don't support constructor priority.
  
            static void (*resolve_memcpy (void)) (void)
*************** to check the target platform type.
*** 42561,42632 ****
            void *memcpy (void *, const void *, size_t)
                 __attribute__ ((ifunc ("resolve_memcpy")));
  
- 
   -- Built-in Function: int __builtin_cpu_is (const char *CPUNAME)
       This function returns a positive integer if the run-time CPU is of
!      type CPUNAME and returns `0' otherwise. The following CPU names
       can be detected:
  
!     `intel'
            Intel CPU.
  
!     `atom'
            Intel Atom CPU.
  
!     `core2'
            Intel Core 2 CPU.
  
!     `corei7'
            Intel Core i7 CPU.
  
!     `nehalem'
            Intel Core i7 Nehalem CPU.
  
!     `westmere'
            Intel Core i7 Westmere CPU.
  
!     `sandybridge'
            Intel Core i7 Sandy Bridge CPU.
  
!     `amd'
            AMD CPU.
  
!     `amdfam10h'
            AMD Family 10h CPU.
  
!     `barcelona'
            AMD Family 10h Barcelona CPU.
  
!     `shanghai'
            AMD Family 10h Shanghai CPU.
  
!     `istanbul'
            AMD Family 10h Istanbul CPU.
  
!     `btver1'
            AMD Family 14h CPU.
  
!     `amdfam15h'
            AMD Family 15h CPU.
  
!     `bdver1'
            AMD Family 15h Bulldozer version 1.
  
!     `bdver2'
            AMD Family 15h Bulldozer version 2.
  
!     `bdver3'
            AMD Family 15h Bulldozer version 3.
  
!     `bdver4'
            AMD Family 15h Bulldozer version 4.
  
!     `btver2'
            AMD Family 16h CPU.
  
!     `znver1'
            AMD Family 17h CPU.
  
       Here is an example:
            if (__builtin_cpu_is ("corei7"))
              {
--- 42194,42267 ----
            void *memcpy (void *, const void *, size_t)
                 __attribute__ ((ifunc ("resolve_memcpy")));
  
   -- Built-in Function: int __builtin_cpu_is (const char *CPUNAME)
       This function returns a positive integer if the run-time CPU is of
!      type CPUNAME and returns '0' otherwise.  The following CPU names
       can be detected:
  
!      'intel'
            Intel CPU.
  
!      'atom'
            Intel Atom CPU.
  
!      'core2'
            Intel Core 2 CPU.
  
!      'corei7'
            Intel Core i7 CPU.
  
!      'nehalem'
            Intel Core i7 Nehalem CPU.
  
!      'westmere'
            Intel Core i7 Westmere CPU.
  
!      'sandybridge'
            Intel Core i7 Sandy Bridge CPU.
  
!      'amd'
            AMD CPU.
  
!      'amdfam10h'
            AMD Family 10h CPU.
  
!      'barcelona'
            AMD Family 10h Barcelona CPU.
  
!      'shanghai'
            AMD Family 10h Shanghai CPU.
  
!      'istanbul'
            AMD Family 10h Istanbul CPU.
  
!      'btver1'
            AMD Family 14h CPU.
  
!      'amdfam15h'
            AMD Family 15h CPU.
  
!      'bdver1'
            AMD Family 15h Bulldozer version 1.
  
!      'bdver2'
            AMD Family 15h Bulldozer version 2.
  
!      'bdver3'
            AMD Family 15h Bulldozer version 3.
  
!      'bdver4'
            AMD Family 15h Bulldozer version 4.
  
!      'btver2'
            AMD Family 16h CPU.
  
!      'amdfam17h'
            AMD Family 17h CPU.
  
+      'znver1'
+           AMD Family 17h Zen version 1.
+ 
       Here is an example:
            if (__builtin_cpu_is ("corei7"))
              {
*************** to check the target platform type.
*** 42639,42681 ****
  
   -- Built-in Function: int __builtin_cpu_supports (const char *FEATURE)
       This function returns a positive integer if the run-time CPU
!      supports FEATURE and returns `0' otherwise. The following features
       can be detected:
  
!     `cmov'
            CMOV instruction.
! 
!     `mmx'
            MMX instructions.
! 
!     `popcnt'
            POPCNT instruction.
! 
!     `sse'
            SSE instructions.
! 
!     `sse2'
            SSE2 instructions.
! 
!     `sse3'
            SSE3 instructions.
! 
!     `ssse3'
            SSSE3 instructions.
! 
!     `sse4.1'
            SSE4.1 instructions.
! 
!     `sse4.2'
            SSE4.2 instructions.
! 
!     `avx'
            AVX instructions.
! 
!     `avx2'
            AVX2 instructions.
! 
!     `avx512f'
            AVX512F instructions.
  
       Here is an example:
--- 42274,42305 ----
  
   -- Built-in Function: int __builtin_cpu_supports (const char *FEATURE)
       This function returns a positive integer if the run-time CPU
!      supports FEATURE and returns '0' otherwise.  The following features
       can be detected:
  
!      'cmov'
            CMOV instruction.
!      'mmx'
            MMX instructions.
!      'popcnt'
            POPCNT instruction.
!      'sse'
            SSE instructions.
!      'sse2'
            SSE2 instructions.
!      'sse3'
            SSE3 instructions.
!      'ssse3'
            SSSE3 instructions.
!      'sse4.1'
            SSE4.1 instructions.
!      'sse4.2'
            SSE4.2 instructions.
!      'avx'
            AVX instructions.
!      'avx2'
            AVX2 instructions.
!      'avx512f'
            AVX512F instructions.
  
       Here is an example:
*************** to check the target platform type.
*** 42688,42695 ****
                 count = generic_countbits (n); //generic implementation.
              }
  
!  The following built-in functions are made available by `-mmmx'.  All
! of them generate the machine instruction that is part of the name.
  
       v8qi __builtin_ia32_paddb (v8qi, v8qi)
       v4hi __builtin_ia32_paddw (v4hi, v4hi)
--- 42312,42319 ----
                 count = generic_countbits (n); //generic implementation.
              }
  
!  The following built-in functions are made available by '-mmmx'.  All of
! them generate the machine instruction that is part of the name.
  
       v8qi __builtin_ia32_paddb (v8qi, v8qi)
       v4hi __builtin_ia32_paddw (v4hi, v4hi)
*************** of them generate the machine instruction
*** 42744,42752 ****
       v4hi __builtin_ia32_psrawi (v4hi, int)
       v2si __builtin_ia32_psradi (v2si, int)
  
   The following built-in functions are made available either with
! `-msse', or with a combination of `-m3dnow' and `-march=athlon'.  All
! of them generate the machine instruction that is part of the name.
  
       v4hi __builtin_ia32_pmulhuw (v4hi, v4hi)
       v8qi __builtin_ia32_pavgb (v8qi, v8qi)
--- 42368,42377 ----
       v4hi __builtin_ia32_psrawi (v4hi, int)
       v2si __builtin_ia32_psradi (v2si, int)
  
+ 
   The following built-in functions are made available either with
! '-msse', or with a combination of '-m3dnow' and '-march=athlon'.  All of
! them generate the machine instruction that is part of the name.
  
       v4hi __builtin_ia32_pmulhuw (v4hi, v4hi)
       v8qi __builtin_ia32_pavgb (v8qi, v8qi)
*************** of them generate the machine instruction
*** 42761,42767 ****
       void __builtin_ia32_movntq (di *, di)
       void __builtin_ia32_sfence (void)
  
!  The following built-in functions are available when `-msse' is used.
  All of them generate the machine instruction that is part of the name.
  
       int __builtin_ia32_comieq (v4sf, v4sf)
--- 42386,42392 ----
       void __builtin_ia32_movntq (di *, di)
       void __builtin_ia32_sfence (void)
  
!  The following built-in functions are available when '-msse' is used.
  All of them generate the machine instruction that is part of the name.
  
       int __builtin_ia32_comieq (v4sf, v4sf)
*************** All of them generate the machine instruc
*** 42833,42862 ****
       void __builtin_ia32_movntps (float *, v4sf)
       int __builtin_ia32_movmskps (v4sf)
  
!  The following built-in functions are available when `-msse' is used.
! 
! `v4sf __builtin_ia32_loadups (float *)'
!      Generates the `movups' machine instruction as a load from memory.
! 
! `void __builtin_ia32_storeups (float *, v4sf)'
!      Generates the `movups' machine instruction as a store to memory.
! 
! `v4sf __builtin_ia32_loadss (float *)'
!      Generates the `movss' machine instruction as a load from memory.
! 
! `v4sf __builtin_ia32_loadhps (v4sf, const v2sf *)'
!      Generates the `movhps' machine instruction as a load from memory.
! 
! `v4sf __builtin_ia32_loadlps (v4sf, const v2sf *)'
!      Generates the `movlps' machine instruction as a load from memory
! 
! `void __builtin_ia32_storehps (v2sf *, v4sf)'
!      Generates the `movhps' machine instruction as a store to memory.
  
! `void __builtin_ia32_storelps (v2sf *, v4sf)'
!      Generates the `movlps' machine instruction as a store to memory.
  
!  The following built-in functions are available when `-msse2' is used.
  All of them generate the machine instruction that is part of the name.
  
       int __builtin_ia32_comisdeq (v2df, v2df)
--- 42458,42481 ----
       void __builtin_ia32_movntps (float *, v4sf)
       int __builtin_ia32_movmskps (v4sf)
  
!  The following built-in functions are available when '-msse' is used.
  
! 'v4sf __builtin_ia32_loadups (float *)'
!      Generates the 'movups' machine instruction as a load from memory.
! 'void __builtin_ia32_storeups (float *, v4sf)'
!      Generates the 'movups' machine instruction as a store to memory.
! 'v4sf __builtin_ia32_loadss (float *)'
!      Generates the 'movss' machine instruction as a load from memory.
! 'v4sf __builtin_ia32_loadhps (v4sf, const v2sf *)'
!      Generates the 'movhps' machine instruction as a load from memory.
! 'v4sf __builtin_ia32_loadlps (v4sf, const v2sf *)'
!      Generates the 'movlps' machine instruction as a load from memory
! 'void __builtin_ia32_storehps (v2sf *, v4sf)'
!      Generates the 'movhps' machine instruction as a store to memory.
! 'void __builtin_ia32_storelps (v2sf *, v4sf)'
!      Generates the 'movlps' machine instruction as a store to memory.
  
!  The following built-in functions are available when '-msse2' is used.
  All of them generate the machine instruction that is part of the name.
  
       int __builtin_ia32_comisdeq (v2df, v2df)
*************** All of them generate the machine instruc
*** 43015,43021 ****
       v4si __builtin_ia32_pmaddwd128 (v8hi, v8hi)
       v2di __builtin_ia32_movq128 (v2di)
  
!  The following built-in functions are available when `-msse3' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2df __builtin_ia32_addsubpd (v2df, v2df)
--- 42634,42640 ----
       v4si __builtin_ia32_pmaddwd128 (v8hi, v8hi)
       v2di __builtin_ia32_movq128 (v2di)
  
!  The following built-in functions are available when '-msse3' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2df __builtin_ia32_addsubpd (v2df, v2df)
*************** All of them generate the machine instruc
*** 43030,43036 ****
       v4sf __builtin_ia32_movsldup (v4sf)
       void __builtin_ia32_mwait (unsigned int, unsigned int)
  
!  The following built-in functions are available when `-mssse3' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2si __builtin_ia32_phaddd (v2si, v2si)
--- 42649,42655 ----
       v4sf __builtin_ia32_movsldup (v4sf)
       void __builtin_ia32_mwait (unsigned int, unsigned int)
  
!  The following built-in functions are available when '-mssse3' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2si __builtin_ia32_phaddd (v2si, v2si)
*************** All of them generate the machine instruc
*** 43050,43056 ****
       v2si __builtin_ia32_pabsd (v2si)
       v4hi __builtin_ia32_pabsw (v4hi)
  
!  The following built-in functions are available when `-mssse3' is used.
  All of them generate the machine instruction that is part of the name.
  
       v4si __builtin_ia32_phaddd128 (v4si, v4si)
--- 42669,42675 ----
       v2si __builtin_ia32_pabsd (v2si)
       v4hi __builtin_ia32_pabsw (v4hi)
  
!  The following built-in functions are available when '-mssse3' is used.
  All of them generate the machine instruction that is part of the name.
  
       v4si __builtin_ia32_phaddd128 (v4si, v4si)
*************** All of them generate the machine instruc
*** 43070,43078 ****
       v4si __builtin_ia32_pabsd128 (v4si)
       v8hi __builtin_ia32_pabsw128 (v8hi)
  
!  The following built-in functions are available when `-msse4.1' is
! used.  All of them generate the machine instruction that is part of the
! name.
  
       v2df __builtin_ia32_blendpd (v2df, v2df, const int)
       v4sf __builtin_ia32_blendps (v4sf, v4sf, const int)
--- 42689,42696 ----
       v4si __builtin_ia32_pabsd128 (v4si)
       v8hi __builtin_ia32_pabsw128 (v8hi)
  
!  The following built-in functions are available when '-msse4.1' is used.
! All of them generate the machine instruction that is part of the name.
  
       v2df __builtin_ia32_blendpd (v2df, v2df, const int)
       v4sf __builtin_ia32_blendps (v4sf, v4sf, const int)
*************** name.
*** 43118,43155 ****
       v2df __builtin_ia32_roundsd (v2df, v2df, const int)
       v4sf __builtin_ia32_roundss (v4sf, v4sf, const int)
  
!  The following built-in functions are available when `-msse4.1' is used.
! 
! `v4sf __builtin_ia32_vec_set_v4sf (v4sf, float, const int)'
!      Generates the `insertps' machine instruction.
! 
! `int __builtin_ia32_vec_ext_v16qi (v16qi, const int)'
!      Generates the `pextrb' machine instruction.
! 
! `v16qi __builtin_ia32_vec_set_v16qi (v16qi, int, const int)'
!      Generates the `pinsrb' machine instruction.
! 
! `v4si __builtin_ia32_vec_set_v4si (v4si, int, const int)'
!      Generates the `pinsrd' machine instruction.
  
! `v2di __builtin_ia32_vec_set_v2di (v2di, long long, const int)'
!      Generates the `pinsrq' machine instruction in 64bit mode.
  
   The following built-in functions are changed to generate new SSE4.1
! instructions when `-msse4.1' is used.
! 
! `float __builtin_ia32_vec_ext_v4sf (v4sf, const int)'
!      Generates the `extractps' machine instruction.
! 
! `int __builtin_ia32_vec_ext_v4si (v4si, const int)'
!      Generates the `pextrd' machine instruction.
  
! `long long __builtin_ia32_vec_ext_v2di (v2di, const int)'
!      Generates the `pextrq' machine instruction in 64bit mode.
  
!  The following built-in functions are available when `-msse4.2' is
! used.  All of them generate the machine instruction that is part of the
! name.
  
       v16qi __builtin_ia32_pcmpestrm128 (v16qi, int, v16qi, int, const int)
       int __builtin_ia32_pcmpestri128 (v16qi, int, v16qi, int, const int)
--- 42736,42766 ----
       v2df __builtin_ia32_roundsd (v2df, v2df, const int)
       v4sf __builtin_ia32_roundss (v4sf, v4sf, const int)
  
!  The following built-in functions are available when '-msse4.1' is used.
  
! 'v4sf __builtin_ia32_vec_set_v4sf (v4sf, float, const int)'
!      Generates the 'insertps' machine instruction.
! 'int __builtin_ia32_vec_ext_v16qi (v16qi, const int)'
!      Generates the 'pextrb' machine instruction.
! 'v16qi __builtin_ia32_vec_set_v16qi (v16qi, int, const int)'
!      Generates the 'pinsrb' machine instruction.
! 'v4si __builtin_ia32_vec_set_v4si (v4si, int, const int)'
!      Generates the 'pinsrd' machine instruction.
! 'v2di __builtin_ia32_vec_set_v2di (v2di, long long, const int)'
!      Generates the 'pinsrq' machine instruction in 64bit mode.
  
   The following built-in functions are changed to generate new SSE4.1
! instructions when '-msse4.1' is used.
  
! 'float __builtin_ia32_vec_ext_v4sf (v4sf, const int)'
!      Generates the 'extractps' machine instruction.
! 'int __builtin_ia32_vec_ext_v4si (v4si, const int)'
!      Generates the 'pextrd' machine instruction.
! 'long long __builtin_ia32_vec_ext_v2di (v2di, const int)'
!      Generates the 'pextrq' machine instruction in 64bit mode.
  
!  The following built-in functions are available when '-msse4.2' is used.
! All of them generate the machine instruction that is part of the name.
  
       v16qi __builtin_ia32_pcmpestrm128 (v16qi, int, v16qi, int, const int)
       int __builtin_ia32_pcmpestri128 (v16qi, int, v16qi, int, const int)
*************** name.
*** 43167,43200 ****
       int __builtin_ia32_pcmpistriz128 (v16qi, v16qi, const int)
       v2di __builtin_ia32_pcmpgtq (v2di, v2di)
  
!  The following built-in functions are available when `-msse4.2' is used.
! 
! `unsigned int __builtin_ia32_crc32qi (unsigned int, unsigned char)'
!      Generates the `crc32b' machine instruction.
! 
! `unsigned int __builtin_ia32_crc32hi (unsigned int, unsigned short)'
!      Generates the `crc32w' machine instruction.
! 
! `unsigned int __builtin_ia32_crc32si (unsigned int, unsigned int)'
!      Generates the `crc32l' machine instruction.
  
! `unsigned long long __builtin_ia32_crc32di (unsigned long long, unsigned long long)'
!      Generates the `crc32q' machine instruction.
  
   The following built-in functions are changed to generate new SSE4.2
! instructions when `-msse4.2' is used.
! 
! `int __builtin_popcount (unsigned int)'
!      Generates the `popcntl' machine instruction.
! 
! `int __builtin_popcountl (unsigned long)'
!      Generates the `popcntl' or `popcntq' machine instruction,
!      depending on the size of `unsigned long'.
  
! `int __builtin_popcountll (unsigned long long)'
!      Generates the `popcntq' machine instruction.
  
!  The following built-in functions are available when `-mavx' is used.
  All of them generate the machine instruction that is part of the name.
  
       v4df __builtin_ia32_addpd256 (v4df,v4df)
--- 42778,42806 ----
       int __builtin_ia32_pcmpistriz128 (v16qi, v16qi, const int)
       v2di __builtin_ia32_pcmpgtq (v2di, v2di)
  
!  The following built-in functions are available when '-msse4.2' is used.
  
! 'unsigned int __builtin_ia32_crc32qi (unsigned int, unsigned char)'
!      Generates the 'crc32b' machine instruction.
! 'unsigned int __builtin_ia32_crc32hi (unsigned int, unsigned short)'
!      Generates the 'crc32w' machine instruction.
! 'unsigned int __builtin_ia32_crc32si (unsigned int, unsigned int)'
!      Generates the 'crc32l' machine instruction.
! 'unsigned long long __builtin_ia32_crc32di (unsigned long long, unsigned long long)'
!      Generates the 'crc32q' machine instruction.
  
   The following built-in functions are changed to generate new SSE4.2
! instructions when '-msse4.2' is used.
  
! 'int __builtin_popcount (unsigned int)'
!      Generates the 'popcntl' machine instruction.
! 'int __builtin_popcountl (unsigned long)'
!      Generates the 'popcntl' or 'popcntq' machine instruction, depending
!      on the size of 'unsigned long'.
! 'int __builtin_popcountll (unsigned long long)'
!      Generates the 'popcntq' machine instruction.
  
!  The following built-in functions are available when '-mavx' is used.
  All of them generate the machine instruction that is part of the name.
  
       v4df __builtin_ia32_addpd256 (v4df,v4df)
*************** All of them generate the machine instruc
*** 43326,43332 ****
       v4df __builtin_ia32_xorpd256 (v4df,v4df)
       v8sf __builtin_ia32_xorps256 (v8sf,v8sf)
  
!  The following built-in functions are available when `-mavx2' is used.
  All of them generate the machine instruction that is part of the name.
  
       v32qi __builtin_ia32_mpsadbw256 (v32qi,v32qi,int)
--- 42932,42938 ----
       v4df __builtin_ia32_xorpd256 (v4df,v4df)
       v8sf __builtin_ia32_xorps256 (v8sf,v8sf)
  
!  The following built-in functions are available when '-mavx2' is used.
  All of them generate the machine instruction that is part of the name.
  
       v32qi __builtin_ia32_mpsadbw256 (v32qi,v32qi,int)
*************** All of them generate the machine instruc
*** 43501,43507 ****
       v4si __builtin_ia32_gatherdiv4si (v4si, pcint,v2di,v4si,int)
       v4si __builtin_ia32_gatherdiv4si256 (v4si, pcint,v4di,v4si,int)
  
!  The following built-in functions are available when `-maes' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2di __builtin_ia32_aesenc128 (v2di, v2di)
--- 43107,43113 ----
       v4si __builtin_ia32_gatherdiv4si (v4si, pcint,v2di,v4si,int)
       v4si __builtin_ia32_gatherdiv4si256 (v4si, pcint,v4di,v4si,int)
  
!  The following built-in functions are available when '-maes' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2di __builtin_ia32_aesenc128 (v2di, v2di)
*************** All of them generate the machine instruc
*** 43511,43524 ****
       v2di __builtin_ia32_aeskeygenassist128 (v2di, const int)
       v2di __builtin_ia32_aesimc128 (v2di)
  
!  The following built-in function is available when `-mpclmul' is used.
  
! `v2di __builtin_ia32_pclmulqdq128 (v2di, v2di, const int)'
!      Generates the `pclmulqdq' machine instruction.
  
!  The following built-in function is available when `-mfsgsbase' is
! used.  All of them generate the machine instruction that is part of the
! name.
  
       unsigned int __builtin_ia32_rdfsbase32 (void)
       unsigned long long __builtin_ia32_rdfsbase64 (void)
--- 43117,43129 ----
       v2di __builtin_ia32_aeskeygenassist128 (v2di, const int)
       v2di __builtin_ia32_aesimc128 (v2di)
  
!  The following built-in function is available when '-mpclmul' is used.
  
! 'v2di __builtin_ia32_pclmulqdq128 (v2di, v2di, const int)'
!      Generates the 'pclmulqdq' machine instruction.
  
!  The following built-in function is available when '-mfsgsbase' is used.
! All of them generate the machine instruction that is part of the name.
  
       unsigned int __builtin_ia32_rdfsbase32 (void)
       unsigned long long __builtin_ia32_rdfsbase64 (void)
*************** name.
*** 43529,43542 ****
       void _writegsbase_u32 (unsigned int)
       void _writegsbase_u64 (unsigned long long)
  
!  The following built-in function is available when `-mrdrnd' is used.
  All of them generate the machine instruction that is part of the name.
  
       unsigned int __builtin_ia32_rdrand16_step (unsigned short *)
       unsigned int __builtin_ia32_rdrand32_step (unsigned int *)
       unsigned int __builtin_ia32_rdrand64_step (unsigned long long *)
  
!  The following built-in functions are available when `-msse4a' is used.
  All of them generate the machine instruction that is part of the name.
  
       void __builtin_ia32_movntsd (double *, v2df)
--- 43134,43147 ----
       void _writegsbase_u32 (unsigned int)
       void _writegsbase_u64 (unsigned long long)
  
!  The following built-in function is available when '-mrdrnd' is used.
  All of them generate the machine instruction that is part of the name.
  
       unsigned int __builtin_ia32_rdrand16_step (unsigned short *)
       unsigned int __builtin_ia32_rdrand32_step (unsigned int *)
       unsigned int __builtin_ia32_rdrand64_step (unsigned long long *)
  
!  The following built-in functions are available when '-msse4a' is used.
  All of them generate the machine instruction that is part of the name.
  
       void __builtin_ia32_movntsd (double *, v2df)
*************** All of them generate the machine instruc
*** 43546,43552 ****
       v2di __builtin_ia32_insertq (v2di, v2di)
       v2di __builtin_ia32_insertqi (v2di, v2di, const unsigned int, const unsigned int)
  
!  The following built-in functions are available when `-mxop' is used.
       v2df __builtin_ia32_vfrczpd (v2df)
       v4sf __builtin_ia32_vfrczps (v4sf)
       v2df __builtin_ia32_vfrczsd (v2df)
--- 43151,43157 ----
       v2di __builtin_ia32_insertq (v2di, v2di)
       v2di __builtin_ia32_insertqi (v2di, v2di, const unsigned int, const unsigned int)
  
!  The following built-in functions are available when '-mxop' is used.
       v2df __builtin_ia32_vfrczpd (v2df)
       v4sf __builtin_ia32_vfrczps (v4sf)
       v2df __builtin_ia32_vfrczsd (v2df)
*************** All of them generate the machine instruc
*** 43672,43678 ****
       v2di __builtin_ia32_vpshlq (v2di, v2di)
       v8hi __builtin_ia32_vpshlw (v8hi, v8hi)
  
!  The following built-in functions are available when `-mfma4' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2df __builtin_ia32_vfmaddpd (v2df, v2df, v2df)
--- 43277,43283 ----
       v2di __builtin_ia32_vpshlq (v2di, v2di)
       v8hi __builtin_ia32_vpshlw (v8hi, v8hi)
  
!  The following built-in functions are available when '-mfma4' is used.
  All of them generate the machine instruction that is part of the name.
  
       v2df __builtin_ia32_vfmaddpd (v2df, v2df, v2df)
*************** All of them generate the machine instruc
*** 43708,43714 ****
       v4df __builtin_ia32_vfmsubaddpd256 (v4df, v4df, v4df)
       v8sf __builtin_ia32_vfmsubaddps256 (v8sf, v8sf, v8sf)
  
!  The following built-in functions are available when `-mlwp' is used.
  
       void __builtin_ia32_llwpcb16 (void *);
       void __builtin_ia32_llwpcb32 (void *);
--- 43313,43320 ----
       v4df __builtin_ia32_vfmsubaddpd256 (v4df, v4df, v4df)
       v8sf __builtin_ia32_vfmsubaddps256 (v8sf, v8sf, v8sf)
  
! 
!  The following built-in functions are available when '-mlwp' is used.
  
       void __builtin_ia32_llwpcb16 (void *);
       void __builtin_ia32_llwpcb32 (void *);
*************** All of them generate the machine instruc
*** 43723,43734 ****
       unsigned char __builtin_ia32_lwpins32 (unsigned int, unsigned int, unsigned int)
       unsigned char __builtin_ia32_lwpins64 (unsigned __int64, unsigned int, unsigned int)
  
!  The following built-in functions are available when `-mbmi' is used.
  All of them generate the machine instruction that is part of the name.
       unsigned int __builtin_ia32_bextr_u32(unsigned int, unsigned int);
       unsigned long long __builtin_ia32_bextr_u64 (unsigned long long, unsigned long long);
  
!  The following built-in functions are available when `-mbmi2' is used.
  All of them generate the machine instruction that is part of the name.
       unsigned int _bzhi_u32 (unsigned int, unsigned int)
       unsigned int _pdep_u32 (unsigned int, unsigned int)
--- 43329,43340 ----
       unsigned char __builtin_ia32_lwpins32 (unsigned int, unsigned int, unsigned int)
       unsigned char __builtin_ia32_lwpins64 (unsigned __int64, unsigned int, unsigned int)
  
!  The following built-in functions are available when '-mbmi' is used.
  All of them generate the machine instruction that is part of the name.
       unsigned int __builtin_ia32_bextr_u32(unsigned int, unsigned int);
       unsigned long long __builtin_ia32_bextr_u64 (unsigned long long, unsigned long long);
  
!  The following built-in functions are available when '-mbmi2' is used.
  All of them generate the machine instruction that is part of the name.
       unsigned int _bzhi_u32 (unsigned int, unsigned int)
       unsigned int _pdep_u32 (unsigned int, unsigned int)
*************** All of them generate the machine instruc
*** 43737,43775 ****
       unsigned long long _pdep_u64 (unsigned long long, unsigned long long)
       unsigned long long _pext_u64 (unsigned long long, unsigned long long)
  
!  The following built-in functions are available when `-mlzcnt' is used.
  All of them generate the machine instruction that is part of the name.
!      unsigned short __builtin_ia32_lzcnt_16(unsigned short);
       unsigned int __builtin_ia32_lzcnt_u32(unsigned int);
       unsigned long long __builtin_ia32_lzcnt_u64 (unsigned long long);
  
!  The following built-in functions are available when `-mfxsr' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_ia32_fxsave (void *)
       void __builtin_ia32_fxrstor (void *)
       void __builtin_ia32_fxsave64 (void *)
       void __builtin_ia32_fxrstor64 (void *)
  
!  The following built-in functions are available when `-mxsave' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_ia32_xsave (void *, long long)
       void __builtin_ia32_xrstor (void *, long long)
       void __builtin_ia32_xsave64 (void *, long long)
       void __builtin_ia32_xrstor64 (void *, long long)
  
!  The following built-in functions are available when `-mxsaveopt' is
  used.  All of them generate the machine instruction that is part of the
  name.
       void __builtin_ia32_xsaveopt (void *, long long)
       void __builtin_ia32_xsaveopt64 (void *, long long)
  
!  The following built-in functions are available when `-mtbm' is used.
  Both of them generate the immediate form of the bextr machine
  instruction.
       unsigned int __builtin_ia32_bextri_u32 (unsigned int, const unsigned int);
       unsigned long long __builtin_ia32_bextri_u64 (unsigned long long, const unsigned long long);
  
!  The following built-in functions are available when `-m3dnow' is used.
  All of them generate the machine instruction that is part of the name.
  
       void __builtin_ia32_femms (void)
--- 43343,43381 ----
       unsigned long long _pdep_u64 (unsigned long long, unsigned long long)
       unsigned long long _pext_u64 (unsigned long long, unsigned long long)
  
!  The following built-in functions are available when '-mlzcnt' is used.
  All of them generate the machine instruction that is part of the name.
!      unsigned short __builtin_ia32_lzcnt_u16(unsigned short);
       unsigned int __builtin_ia32_lzcnt_u32(unsigned int);
       unsigned long long __builtin_ia32_lzcnt_u64 (unsigned long long);
  
!  The following built-in functions are available when '-mfxsr' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_ia32_fxsave (void *)
       void __builtin_ia32_fxrstor (void *)
       void __builtin_ia32_fxsave64 (void *)
       void __builtin_ia32_fxrstor64 (void *)
  
!  The following built-in functions are available when '-mxsave' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_ia32_xsave (void *, long long)
       void __builtin_ia32_xrstor (void *, long long)
       void __builtin_ia32_xsave64 (void *, long long)
       void __builtin_ia32_xrstor64 (void *, long long)
  
!  The following built-in functions are available when '-mxsaveopt' is
  used.  All of them generate the machine instruction that is part of the
  name.
       void __builtin_ia32_xsaveopt (void *, long long)
       void __builtin_ia32_xsaveopt64 (void *, long long)
  
!  The following built-in functions are available when '-mtbm' is used.
  Both of them generate the immediate form of the bextr machine
  instruction.
       unsigned int __builtin_ia32_bextri_u32 (unsigned int, const unsigned int);
       unsigned long long __builtin_ia32_bextri_u64 (unsigned long long, const unsigned long long);
  
!  The following built-in functions are available when '-m3dnow' is used.
  All of them generate the machine instruction that is part of the name.
  
       void __builtin_ia32_femms (void)
*************** All of them generate the machine instruc
*** 43792,43799 ****
       v2sf __builtin_ia32_pi2fd (v2si)
       v4hi __builtin_ia32_pmulhrw (v4hi, v4hi)
  
!  The following built-in functions are available when both `-m3dnow' and
! `-march=athlon' are used.  All of them generate the machine instruction
  that is part of the name.
  
       v2si __builtin_ia32_pf2iw (v2sf)
--- 43398,43405 ----
       v2sf __builtin_ia32_pi2fd (v2si)
       v4hi __builtin_ia32_pmulhrw (v4hi, v4hi)
  
!  The following built-in functions are available when both '-m3dnow' and
! '-march=athlon' are used.  All of them generate the machine instruction
  that is part of the name.
  
       v2si __builtin_ia32_pf2iw (v2sf)
*************** that is part of the name.
*** 43803,43811 ****
       v2sf __builtin_ia32_pswapdsf (v2sf)
       v2si __builtin_ia32_pswapdsi (v2si)
  
!  The following built-in functions are available when `-mrtm' is used
! They are used for restricted transactional memory. These are the
! internal low level functions. Normally the functions in *note x86
  transactional memory intrinsics:: should be used instead.
  
       int __builtin_ia32_xbegin ()
--- 43409,43417 ----
       v2sf __builtin_ia32_pswapdsf (v2sf)
       v2si __builtin_ia32_pswapdsi (v2si)
  
!  The following built-in functions are available when '-mrtm' is used
! They are used for restricted transactional memory.  These are the
! internal low level functions.  Normally the functions in *note x86
  transactional memory intrinsics:: should be used instead.
  
       int __builtin_ia32_xbegin ()
*************** transactional memory intrinsics:: should
*** 43813,43828 ****
       void __builtin_ia32_xabort (status)
       int __builtin_ia32_xtest ()
  
!  The following built-in functions are available when `-mmwaitx' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_ia32_monitorx (void *, unsigned int, unsigned int)
       void __builtin_ia32_mwaitx (unsigned int, unsigned int, unsigned int)
  
!  The following built-in functions are available when `-mclzero' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_i32_clzero (void *)
  
!  The following built-in functions are available when `-mpku' is used.
  They generate reads and writes to PKRU.
       void __builtin_ia32_wrpkru (unsigned int)
       unsigned int __builtin_ia32_rdpkru ()
--- 43419,43434 ----
       void __builtin_ia32_xabort (status)
       int __builtin_ia32_xtest ()
  
!  The following built-in functions are available when '-mmwaitx' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_ia32_monitorx (void *, unsigned int, unsigned int)
       void __builtin_ia32_mwaitx (unsigned int, unsigned int, unsigned int)
  
!  The following built-in functions are available when '-mclzero' is used.
  All of them generate the machine instruction that is part of the name.
       void __builtin_i32_clzero (void *)
  
!  The following built-in functions are available when '-mpku' is used.
  They generate reads and writes to PKRU.
       void __builtin_ia32_wrpkru (unsigned int)
       unsigned int __builtin_ia32_rdpkru ()
*************** File: gcc.info,  Node: x86 transactional
*** 43835,43888 ****
  
  These hardware transactional memory intrinsics for x86 allow you to use
  memory transactions with RTM (Restricted Transactional Memory).  This
! support is enabled with the `-mrtm' option.  For using HLE (Hardware
  Lock Elision) see *note x86 specific memory model extensions for
  transactional memory:: instead.
  
!  A memory transaction commits all changes to memory in an atomic way,
! as visible to other threads. If the transaction fails it is rolled back
  and all side effects discarded.
  
   Generally there is no guarantee that a memory transaction ever succeeds
  and suitable fallback code always needs to be supplied.
  
   -- RTM Function: unsigned _xbegin ()
!      Start a RTM (Restricted Transactional Memory) transaction.
!      Returns `_XBEGIN_STARTED' when the transaction started
!      successfully (note this is not 0, so the constant has to be
!      explicitly tested).
! 
!      If the transaction aborts, all side-effects are undone and an
!      abort code encoded as a bit mask is returned.  The following
!      macros are defined:
  
!     `_XABORT_EXPLICIT'
!           Transaction was explicitly aborted with `_xabort'.  The
!           parameter passed to `_xabort' is available with
!           `_XABORT_CODE(status)'.
  
!     `_XABORT_RETRY'
            Transaction retry is possible.
! 
!     `_XABORT_CONFLICT'
            Transaction abort due to a memory conflict with another
            thread.
! 
!     `_XABORT_CAPACITY'
            Transaction abort due to the transaction using too much
            memory.
! 
!     `_XABORT_DEBUG'
            Transaction abort due to a debug trap.
! 
!     `_XABORT_NESTED'
            Transaction abort in an inner nested transaction.
  
       There is no guarantee any transaction ever succeeds, so there
       always needs to be a valid fallback path.
  
   -- RTM Function: void _xend ()
!      Commit the current transaction. When no transaction is active this
       faults.  All memory side-effects of the transaction become visible
       to other threads in an atomic manner.
  
--- 43441,43488 ----
  
  These hardware transactional memory intrinsics for x86 allow you to use
  memory transactions with RTM (Restricted Transactional Memory).  This
! support is enabled with the '-mrtm' option.  For using HLE (Hardware
  Lock Elision) see *note x86 specific memory model extensions for
  transactional memory:: instead.
  
!  A memory transaction commits all changes to memory in an atomic way, as
! visible to other threads.  If the transaction fails it is rolled back
  and all side effects discarded.
  
   Generally there is no guarantee that a memory transaction ever succeeds
  and suitable fallback code always needs to be supplied.
  
   -- RTM Function: unsigned _xbegin ()
!      Start a RTM (Restricted Transactional Memory) transaction.  Returns
!      '_XBEGIN_STARTED' when the transaction started successfully (note
!      this is not 0, so the constant has to be explicitly tested).
  
!      If the transaction aborts, all side-effects are undone and an abort
!      code encoded as a bit mask is returned.  The following macros are
!      defined:
  
!      '_XABORT_EXPLICIT'
!           Transaction was explicitly aborted with '_xabort'.  The
!           parameter passed to '_xabort' is available with
!           '_XABORT_CODE(status)'.
!      '_XABORT_RETRY'
            Transaction retry is possible.
!      '_XABORT_CONFLICT'
            Transaction abort due to a memory conflict with another
            thread.
!      '_XABORT_CAPACITY'
            Transaction abort due to the transaction using too much
            memory.
!      '_XABORT_DEBUG'
            Transaction abort due to a debug trap.
!      '_XABORT_NESTED'
            Transaction abort in an inner nested transaction.
  
       There is no guarantee any transaction ever succeeds, so there
       always needs to be a valid fallback path.
  
   -- RTM Function: void _xend ()
!      Commit the current transaction.  When no transaction is active this
       faults.  All memory side-effects of the transaction become visible
       to other threads in an atomic manner.
  
*************** and suitable fallback code always needs
*** 43891,43901 ****
       otherwise 0.
  
   -- RTM Function: void _xabort (status)
!      Abort the current transaction. When no transaction is active this
       is a no-op.  The STATUS is an 8-bit constant; its value is encoded
!      in the return value from `_xbegin'.
  
!  Here is an example showing handling for `_XABORT_RETRY' and a fallback
  path for other failures:
  
       #include <immintrin.h>
--- 43491,43501 ----
       otherwise 0.
  
   -- RTM Function: void _xabort (status)
!      Abort the current transaction.  When no transaction is active this
       is a no-op.  The STATUS is an 8-bit constant; its value is encoded
!      in the return value from '_xbegin'.
  
!  Here is an example showing handling for '_XABORT_RETRY' and a fallback
  path for other failures:
  
       #include <immintrin.h>
*************** File: gcc.info,  Node: Solaris Format Ch
*** 43944,43953 ****
  6.60.1 Solaris Format Checks
  ----------------------------
  
! Solaris targets support the `cmn_err' (or `__cmn_err__') format check.
! `cmn_err' accepts a subset of the standard `printf' conversions, and
! the two-argument `%b' conversion for displaying bit-fields.  See the
! Solaris man page for `cmn_err' for more information.
  
  
  File: gcc.info,  Node: Darwin Format Checks,  Prev: Solaris Format Checks,  Up: Target Format Checks
--- 43544,43553 ----
  6.60.1 Solaris Format Checks
  ----------------------------
  
! Solaris targets support the 'cmn_err' (or '__cmn_err__') format check.
! 'cmn_err' accepts a subset of the standard 'printf' conversions, and the
! two-argument '%b' conversion for displaying bit-fields.  See the Solaris
! man page for 'cmn_err' for more information.
  
  
  File: gcc.info,  Node: Darwin Format Checks,  Prev: Solaris Format Checks,  Up: Target Format Checks
*************** File: gcc.info,  Node: Darwin Format Che
*** 43955,43971 ****
  6.60.2 Darwin Format Checks
  ---------------------------
  
! Darwin targets support the `CFString' (or `__CFString__') in the format
  attribute context.  Declarations made with such attribution are parsed
  for correct syntax and format argument types.  However, parsing of the
  format string itself is currently undefined and is not carried out by
  this version of the compiler.
  
!  Additionally, `CFStringRefs' (defined by the `CoreFoundation' headers)
  may also be used as format arguments.  Note that the relevant headers
  are only likely to be available on Darwin (OSX) installations.  On such
  installations, the XCode and system documentation provide descriptions
! of `CFString', `CFStringRefs' and associated functions.
  
  
  File: gcc.info,  Node: Pragmas,  Next: Unnamed Fields,  Prev: Target Format Checks,  Up: C Extensions
--- 43555,43571 ----
  6.60.2 Darwin Format Checks
  ---------------------------
  
! Darwin targets support the 'CFString' (or '__CFString__') in the format
  attribute context.  Declarations made with such attribution are parsed
  for correct syntax and format argument types.  However, parsing of the
  format string itself is currently undefined and is not carried out by
  this version of the compiler.
  
!  Additionally, 'CFStringRefs' (defined by the 'CoreFoundation' headers)
  may also be used as format arguments.  Note that the relevant headers
  are only likely to be available on Darwin (OSX) installations.  On such
  installations, the XCode and system documentation provide descriptions
! of 'CFString', 'CFStringRefs' and associated functions.
  
  
  File: gcc.info,  Node: Pragmas,  Next: Unnamed Fields,  Prev: Target Format Checks,  Up: C Extensions
*************** File: gcc.info,  Node: Pragmas,  Next: U
*** 43974,43981 ****
  ============================
  
  GCC supports several types of pragmas, primarily in order to compile
! code originally written for other compilers.  Note that in general we
! do not recommend the use of pragmas; *Note Function Attributes::, for
  further explanation.
  
  * Menu:
--- 43574,43581 ----
  ============================
  
  GCC supports several types of pragmas, primarily in order to compile
! code originally written for other compilers.  Note that in general we do
! not recommend the use of pragmas; *Note Function Attributes::, for
  further explanation.
  
  * Menu:
*************** The pragmas defined by the AArch64 targe
*** 44007,44015 ****
  target function attributes.  They can be specified as below:
       #pragma GCC target("string")
  
!  where `STRING' can be any string accepted as an AArch64 target
! attribute.  *Note AArch64 Function Attributes::, for more details on
! the permissible values of `string'.
  
  
  File: gcc.info,  Node: ARM Pragmas,  Next: M32C Pragmas,  Prev: AArch64 Pragmas,  Up: Pragmas
--- 43607,43615 ----
  target function attributes.  They can be specified as below:
       #pragma GCC target("string")
  
!  where 'STRING' can be any string accepted as an AArch64 target
! attribute.  *Note AArch64 Function Attributes::, for more details on the
! permissible values of 'string'.
  
  
  File: gcc.info,  Node: ARM Pragmas,  Next: M32C Pragmas,  Prev: AArch64 Pragmas,  Up: Pragmas
*************** File: gcc.info,  Node: ARM Pragmas,  Nex
*** 44018,44034 ****
  ------------------
  
  The ARM target defines pragmas for controlling the default addition of
! `long_call' and `short_call' attributes to functions.  *Note Function
  Attributes::, for information about the effects of these attributes.
  
! `long_calls'
!      Set all subsequent functions to have the `long_call' attribute.
  
! `no_long_calls'
!      Set all subsequent functions to have the `short_call' attribute.
  
! `long_calls_off'
!      Do not affect the `long_call' or `short_call' attributes of
       subsequent functions.
  
  
--- 43618,43634 ----
  ------------------
  
  The ARM target defines pragmas for controlling the default addition of
! 'long_call' and 'short_call' attributes to functions.  *Note Function
  Attributes::, for information about the effects of these attributes.
  
! 'long_calls'
!      Set all subsequent functions to have the 'long_call' attribute.
  
! 'no_long_calls'
!      Set all subsequent functions to have the 'short_call' attribute.
  
! 'long_calls_off'
!      Do not affect the 'long_call' or 'short_call' attributes of
       subsequent functions.
  
  
*************** File: gcc.info,  Node: M32C Pragmas,  Ne
*** 44037,44083 ****
  6.61.3 M32C Pragmas
  -------------------
  
! `GCC memregs NUMBER'
!      Overrides the command-line option `-memregs=' for the current
!      file.  Use with care!  This pragma must be before any function in
!      the file, and mixing different memregs values in different objects
!      may make them incompatible.  This pragma is useful when a
       performance-critical function uses a memreg for temporary values,
       as it may allow you to reduce the number of memregs used.
  
! `ADDRESS NAME ADDRESS'
       For any declared symbols matching NAME, this does three things to
       that symbol: it forces the symbol to be located at the given
       address (a number), it forces the symbol to be volatile, and it
       changes the symbol's scope to be static.  This pragma exists for
       compatibility with other compilers, but note that the common
!      `1234H' numeric syntax is not supported (use `0x1234' instead).
       Example:
  
            #pragma ADDRESS port3 0x103
            char port3;
  
- 
  
  File: gcc.info,  Node: MeP Pragmas,  Next: RS/6000 and PowerPC Pragmas,  Prev: M32C Pragmas,  Up: Pragmas
  
  6.61.4 MeP Pragmas
  ------------------
  
! `custom io_volatile (on|off)'
!      Overrides the command-line option `-mio-volatile' for the current
       file.  Note that for compatibility with future GCC releases, this
!      option should only be used once before any `io' variables in each
       file.
  
! `GCC coprocessor available REGISTERS'
       Specifies which coprocessor registers are available to the register
       allocator.  REGISTERS may be a single register, register range
       separated by ellipses, or comma-separated list of those.  Example:
  
            #pragma GCC coprocessor available $c0...$c10, $c28
  
! `GCC coprocessor call_saved REGISTERS'
       Specifies which coprocessor registers are to be saved and restored
       by any function using them.  REGISTERS may be a single register,
       register range separated by ellipses, or comma-separated list of
--- 43637,43682 ----
  6.61.3 M32C Pragmas
  -------------------
  
! 'GCC memregs NUMBER'
!      Overrides the command-line option '-memregs=' for the current file.
!      Use with care!  This pragma must be before any function in the
!      file, and mixing different memregs values in different objects may
!      make them incompatible.  This pragma is useful when a
       performance-critical function uses a memreg for temporary values,
       as it may allow you to reduce the number of memregs used.
  
! 'ADDRESS NAME ADDRESS'
       For any declared symbols matching NAME, this does three things to
       that symbol: it forces the symbol to be located at the given
       address (a number), it forces the symbol to be volatile, and it
       changes the symbol's scope to be static.  This pragma exists for
       compatibility with other compilers, but note that the common
!      '1234H' numeric syntax is not supported (use '0x1234' instead).
       Example:
  
            #pragma ADDRESS port3 0x103
            char port3;
  
  
  File: gcc.info,  Node: MeP Pragmas,  Next: RS/6000 and PowerPC Pragmas,  Prev: M32C Pragmas,  Up: Pragmas
  
  6.61.4 MeP Pragmas
  ------------------
  
! 'custom io_volatile (on|off)'
!      Overrides the command-line option '-mio-volatile' for the current
       file.  Note that for compatibility with future GCC releases, this
!      option should only be used once before any 'io' variables in each
       file.
  
! 'GCC coprocessor available REGISTERS'
       Specifies which coprocessor registers are available to the register
       allocator.  REGISTERS may be a single register, register range
       separated by ellipses, or comma-separated list of those.  Example:
  
            #pragma GCC coprocessor available $c0...$c10, $c28
  
! 'GCC coprocessor call_saved REGISTERS'
       Specifies which coprocessor registers are to be saved and restored
       by any function using them.  REGISTERS may be a single register,
       register range separated by ellipses, or comma-separated list of
*************** File: gcc.info,  Node: MeP Pragmas,  Nex
*** 44085,44093 ****
  
            #pragma GCC coprocessor call_saved $c4...$c6, $c31
  
! `GCC coprocessor subclass '(A|B|C|D)' = REGISTERS'
       Creates and defines a register class.  These register classes can
!      be used by inline `asm' constructs.  REGISTERS may be a single
       register, register range separated by ellipses, or comma-separated
       list of those.  Example:
  
--- 43684,43692 ----
  
            #pragma GCC coprocessor call_saved $c4...$c6, $c31
  
! 'GCC coprocessor subclass '(A|B|C|D)' = REGISTERS'
       Creates and defines a register class.  These register classes can
!      be used by inline 'asm' constructs.  REGISTERS may be a single
       register, register range separated by ellipses, or comma-separated
       list of those.  Example:
  
*************** File: gcc.info,  Node: MeP Pragmas,  Nex
*** 44095,44101 ****
  
            asm ("cpfoo %0" : "=B" (x));
  
! `GCC disinterrupt NAME , NAME ...'
       For the named functions, the compiler adds code to disable
       interrupts for the duration of those functions.  If any functions
       so named are not encountered in the source, a warning is emitted
--- 43694,43700 ----
  
            asm ("cpfoo %0" : "=B" (x));
  
! 'GCC disinterrupt NAME , NAME ...'
       For the named functions, the compiler adds code to disable
       interrupts for the duration of those functions.  If any functions
       so named are not encountered in the source, a warning is emitted
*************** File: gcc.info,  Node: MeP Pragmas,  Nex
*** 44105,44111 ****
            #pragma disinterrupt bar, grill
            int foo () { ... }
  
! `GCC call NAME , NAME ...'
       For the named functions, the compiler always uses a
       register-indirect call model when calling the named functions.
       Examples:
--- 43704,43710 ----
            #pragma disinterrupt bar, grill
            int foo () { ... }
  
! 'GCC call NAME , NAME ...'
       For the named functions, the compiler always uses a
       register-indirect call model when calling the named functions.
       Examples:
*************** File: gcc.info,  Node: MeP Pragmas,  Nex
*** 44113,44119 ****
            extern int foo ();
            #pragma call foo
  
- 
  
  File: gcc.info,  Node: RS/6000 and PowerPC Pragmas,  Next: S/390 Pragmas,  Prev: MeP Pragmas,  Up: Pragmas
  
--- 43712,43717 ----
*************** File: gcc.info,  Node: RS/6000 and Power
*** 44121,44138 ****
  ----------------------------------
  
  The RS/6000 and PowerPC targets define one pragma for controlling
! whether or not the `longcall' attribute is added to function
! declarations by default.  This pragma overrides the `-mlongcall'
! option, but not the `longcall' and `shortcall' attributes.  *Note
! RS/6000 and PowerPC Options::, for more information about when long
! calls are and are not necessary.
  
! `longcall (1)'
!      Apply the `longcall' attribute to all subsequent function
       declarations.
  
! `longcall (0)'
!      Do not apply the `longcall' attribute to subsequent function
       declarations.
  
  
--- 43719,43736 ----
  ----------------------------------
  
  The RS/6000 and PowerPC targets define one pragma for controlling
! whether or not the 'longcall' attribute is added to function
! declarations by default.  This pragma overrides the '-mlongcall' option,
! but not the 'longcall' and 'shortcall' attributes.  *Note RS/6000 and
! PowerPC Options::, for more information about when long calls are and
! are not necessary.
  
! 'longcall (1)'
!      Apply the 'longcall' attribute to all subsequent function
       declarations.
  
! 'longcall (0)'
!      Do not apply the 'longcall' attribute to subsequent function
       declarations.
  
  
*************** File: gcc.info,  Node: S/390 Pragmas,  N
*** 44144,44154 ****
  The pragmas defined by the S/390 target correspond to the S/390 target
  function attributes and some the additional options:
  
! `zvector'
! `no-zvector'
  
   Note that options of the pragma, unlike options of the target
! attribute, do change the value of preprocessor macros like `__VEC__'.
  They can be specified as below:
  
       #pragma GCC target("string[,string]...")
--- 43742,43752 ----
  The pragmas defined by the S/390 target correspond to the S/390 target
  function attributes and some the additional options:
  
! 'zvector'
! 'no-zvector'
  
   Note that options of the pragma, unlike options of the target
! attribute, do change the value of preprocessor macros like '__VEC__'.
  They can be specified as below:
  
       #pragma GCC target("string[,string]...")
*************** The following pragmas are available for
*** 44164,44186 ****
  Darwin operating system.  These are useful for compatibility with other
  Mac OS compilers.
  
! `mark TOKENS...'
       This pragma is accepted, but has no effect.
  
! `options align=ALIGNMENT'
!      This pragma sets the alignment of fields in structures.  The
!      values of ALIGNMENT may be `mac68k', to emulate m68k alignment, or
!      `power', to emulate PowerPC alignment.  Uses of this pragma nest
!      properly; to restore the previous setting, use `reset' for the
       ALIGNMENT.
  
! `segment TOKENS...'
       This pragma is accepted, but has no effect.
  
! `unused (VAR [, VAR]...)'
       This pragma declares variables to be possibly unused.  GCC does not
       produce warnings for the listed variables.  The effect is similar
!      to that of the `unused' attribute, except that this pragma may
       appear anywhere within the variables' scopes.
  
  
--- 43762,43784 ----
  Darwin operating system.  These are useful for compatibility with other
  Mac OS compilers.
  
! 'mark TOKENS...'
       This pragma is accepted, but has no effect.
  
! 'options align=ALIGNMENT'
!      This pragma sets the alignment of fields in structures.  The values
!      of ALIGNMENT may be 'mac68k', to emulate m68k alignment, or
!      'power', to emulate PowerPC alignment.  Uses of this pragma nest
!      properly; to restore the previous setting, use 'reset' for the
       ALIGNMENT.
  
! 'segment TOKENS...'
       This pragma is accepted, but has no effect.
  
! 'unused (VAR [, VAR]...)'
       This pragma declares variables to be possibly unused.  GCC does not
       produce warnings for the listed variables.  The effect is similar
!      to that of the 'unused' attribute, except that this pragma may
       appear anywhere within the variables' scopes.
  
  
*************** File: gcc.info,  Node: Solaris Pragmas,
*** 44189,44216 ****
  6.61.8 Solaris Pragmas
  ----------------------
  
! The Solaris target supports `#pragma redefine_extname' (*note
! Symbol-Renaming Pragmas::).  It also supports additional `#pragma'
  directives for compatibility with the system compiler.
  
! `align ALIGNMENT (VARIABLE [, VARIABLE]...)'
!      Increase the minimum alignment of each VARIABLE to ALIGNMENT.
!      This is the same as GCC's `aligned' attribute *note Variable
       Attributes::).  Macro expansion occurs on the arguments to this
       pragma when compiling C and Objective-C.  It does not currently
!      occur when compiling C++, but this is a bug which may be fixed in
!      a future release.
  
! `fini (FUNCTION [, FUNCTION]...)'
!      This pragma causes each listed FUNCTION to be called after main,
!      or during shared module unloading, by adding a call to the `.fini'
       section.
  
! `init (FUNCTION [, FUNCTION]...)'
!      This pragma causes each listed FUNCTION to be called during
!      initialization (before `main') or during shared module loading, by
!      adding a call to the `.init' section.
  
  
  
  File: gcc.info,  Node: Symbol-Renaming Pragmas,  Next: Structure-Layout Pragmas,  Prev: Solaris Pragmas,  Up: Pragmas
--- 43787,43816 ----
  6.61.8 Solaris Pragmas
  ----------------------
  
! The Solaris target supports '#pragma redefine_extname' (*note
! Symbol-Renaming Pragmas::).  It also supports additional '#pragma'
  directives for compatibility with the system compiler.
  
! 'align ALIGNMENT (VARIABLE [, VARIABLE]...)'
! 
!      Increase the minimum alignment of each VARIABLE to ALIGNMENT.  This
!      is the same as GCC's 'aligned' attribute *note Variable
       Attributes::).  Macro expansion occurs on the arguments to this
       pragma when compiling C and Objective-C.  It does not currently
!      occur when compiling C++, but this is a bug which may be fixed in a
!      future release.
  
! 'fini (FUNCTION [, FUNCTION]...)'
! 
!      This pragma causes each listed FUNCTION to be called after main, or
!      during shared module unloading, by adding a call to the '.fini'
       section.
  
! 'init (FUNCTION [, FUNCTION]...)'
  
+      This pragma causes each listed FUNCTION to be called during
+      initialization (before 'main') or during shared module loading, by
+      adding a call to the '.init' section.
  
  
  File: gcc.info,  Node: Symbol-Renaming Pragmas,  Next: Structure-Layout Pragmas,  Prev: Solaris Pragmas,  Up: Pragmas
*************** File: gcc.info,  Node: Symbol-Renaming P
*** 44218,44232 ****
  6.61.9 Symbol-Renaming Pragmas
  ------------------------------
  
! GCC supports a `#pragma' directive that changes the name used in
! assembly for a given declaration. While this pragma is supported on all
  platforms, it is intended primarily to provide compatibility with the
! Solaris system headers. This effect can also be achieved using the asm
  labels extension (*note Asm Labels::).
  
! `redefine_extname OLDNAME NEWNAME'
       This pragma gives the C function OLDNAME the assembly symbol
!      NEWNAME.  The preprocessor macro `__PRAGMA_REDEFINE_EXTNAME' is
       defined if this pragma is available (currently on all platforms).
  
   This pragma and the asm labels extension interact in a complicated
--- 43818,43833 ----
  6.61.9 Symbol-Renaming Pragmas
  ------------------------------
  
! GCC supports a '#pragma' directive that changes the name used in
! assembly for a given declaration.  While this pragma is supported on all
  platforms, it is intended primarily to provide compatibility with the
! Solaris system headers.  This effect can also be achieved using the asm
  labels extension (*note Asm Labels::).
  
! 'redefine_extname OLDNAME NEWNAME'
! 
       This pragma gives the C function OLDNAME the assembly symbol
!      NEWNAME.  The preprocessor macro '__PRAGMA_REDEFINE_EXTNAME' is
       defined if this pragma is available (currently on all platforms).
  
   This pragma and the asm labels extension interact in a complicated
*************** manner.  Here are some corner cases you
*** 44241,44251 ****
    3. If either of the ways of changing the assembly name of a
       declaration are applied to a declaration whose assembly name has
       already been determined (either by a previous use of one of these
!      features, or because the compiler needed the assembly name in
!      order to generate code), and the new name is different, a warning
!      issues and the name does not change.
  
!   4. The OLDNAME used by `#pragma redefine_extname' is always the
       C-language name.
  
  
--- 43842,43852 ----
    3. If either of the ways of changing the assembly name of a
       declaration are applied to a declaration whose assembly name has
       already been determined (either by a previous use of one of these
!      features, or because the compiler needed the assembly name in order
!      to generate code), and the new name is different, a warning issues
!      and the name does not change.
  
!   4. The OLDNAME used by '#pragma redefine_extname' is always the
       C-language name.
  
  
*************** File: gcc.info,  Node: Structure-Layout
*** 44255,44304 ****
  --------------------------------
  
  For compatibility with Microsoft Windows compilers, GCC supports a set
! of `#pragma' directives that change the maximum alignment of members of
  structures (other than zero-width bit-fields), unions, and classes
! subsequently defined. The N value below always is required to be a
  small power of two and specifies the new alignment in bytes.
  
!   1. `#pragma pack(N)' simply sets the new alignment.
! 
!   2. `#pragma pack()' sets the alignment to the one that was in effect
       when compilation started (see also command-line option
!      `-fpack-struct[=N]' *note Code Gen Options::).
! 
!   3. `#pragma pack(push[,N])' pushes the current alignment setting on
!      an internal stack and then optionally sets the new alignment.
! 
!   4. `#pragma pack(pop)' restores the alignment setting to the one
!      saved at the top of the internal stack (and removes that stack
!      entry).  Note that `#pragma pack([N])' does not influence this
!      internal stack; thus it is possible to have `#pragma pack(push)'
!      followed by multiple `#pragma pack(N)' instances and finalized by
!      a single `#pragma pack(pop)'.
  
!  Some targets, e.g. x86 and PowerPC, support the `#pragma ms_struct'
  directive which lays out structures and unions subsequently defined as
! the documented `__attribute__ ((ms_struct))'.
! 
!   1. `#pragma ms_struct on' turns on the Microsoft layout.
! 
!   2. `#pragma ms_struct off' turns off the Microsoft layout.
  
!   3. `#pragma ms_struct reset' goes back to the default layout.
  
!  Most targets also support the `#pragma scalar_storage_order' directive
  which lays out structures and unions subsequently defined as the
! documented `__attribute__ ((scalar_storage_order))'.
! 
!   1. `#pragma scalar_storage_order big-endian' sets the storage order
!      of the scalar fields to big-endian.
  
!   2. `#pragma scalar_storage_order little-endian' sets the storage order
       of the scalar fields to little-endian.
! 
!   3. `#pragma scalar_storage_order default' goes back to the endianness
       that was in effect when compilation started (see also command-line
!      option `-fsso-struct=ENDIANNESS' *note C Dialect Options::).
  
  
  File: gcc.info,  Node: Weak Pragmas,  Next: Diagnostic Pragmas,  Prev: Structure-Layout Pragmas,  Up: Pragmas
--- 43856,43898 ----
  --------------------------------
  
  For compatibility with Microsoft Windows compilers, GCC supports a set
! of '#pragma' directives that change the maximum alignment of members of
  structures (other than zero-width bit-fields), unions, and classes
! subsequently defined.  The N value below always is required to be a
  small power of two and specifies the new alignment in bytes.
  
!   1. '#pragma pack(N)' simply sets the new alignment.
!   2. '#pragma pack()' sets the alignment to the one that was in effect
       when compilation started (see also command-line option
!      '-fpack-struct[=N]' *note Code Gen Options::).
!   3. '#pragma pack(push[,N])' pushes the current alignment setting on an
!      internal stack and then optionally sets the new alignment.
!   4. '#pragma pack(pop)' restores the alignment setting to the one saved
!      at the top of the internal stack (and removes that stack entry).
!      Note that '#pragma pack([N])' does not influence this internal
!      stack; thus it is possible to have '#pragma pack(push)' followed by
!      multiple '#pragma pack(N)' instances and finalized by a single
!      '#pragma pack(pop)'.
  
!  Some targets, e.g. x86 and PowerPC, support the '#pragma ms_struct'
  directive which lays out structures and unions subsequently defined as
! the documented '__attribute__ ((ms_struct))'.
  
!   1. '#pragma ms_struct on' turns on the Microsoft layout.
!   2. '#pragma ms_struct off' turns off the Microsoft layout.
!   3. '#pragma ms_struct reset' goes back to the default layout.
  
!  Most targets also support the '#pragma scalar_storage_order' directive
  which lays out structures and unions subsequently defined as the
! documented '__attribute__ ((scalar_storage_order))'.
  
!   1. '#pragma scalar_storage_order big-endian' sets the storage order of
!      the scalar fields to big-endian.
!   2. '#pragma scalar_storage_order little-endian' sets the storage order
       of the scalar fields to little-endian.
!   3. '#pragma scalar_storage_order default' goes back to the endianness
       that was in effect when compilation started (see also command-line
!      option '-fsso-struct=ENDIANNESS' *note C Dialect Options::).
  
  
  File: gcc.info,  Node: Weak Pragmas,  Next: Diagnostic Pragmas,  Prev: Structure-Layout Pragmas,  Up: Pragmas
*************** File: gcc.info,  Node: Weak Pragmas,  Ne
*** 44306,44321 ****
  6.61.11 Weak Pragmas
  --------------------
  
! For compatibility with SVR4, GCC supports a set of `#pragma' directives
  for declaring symbols to be weak, and defining weak aliases.
  
! `#pragma weak SYMBOL'
       This pragma declares SYMBOL to be weak, as if the declaration had
       the attribute of the same name.  The pragma may appear before or
       after the declaration of SYMBOL.  It is not an error for SYMBOL to
       never be defined at all.
  
! `#pragma weak SYMBOL1 = SYMBOL2'
       This pragma declares SYMBOL1 to be a weak alias of SYMBOL2.  It is
       an error if SYMBOL2 is not defined in the current translation unit.
  
--- 43900,43915 ----
  6.61.11 Weak Pragmas
  --------------------
  
! For compatibility with SVR4, GCC supports a set of '#pragma' directives
  for declaring symbols to be weak, and defining weak aliases.
  
! '#pragma weak SYMBOL'
       This pragma declares SYMBOL to be weak, as if the declaration had
       the attribute of the same name.  The pragma may appear before or
       after the declaration of SYMBOL.  It is not an error for SYMBOL to
       never be defined at all.
  
! '#pragma weak SYMBOL1 = SYMBOL2'
       This pragma declares SYMBOL1 to be a weak alias of SYMBOL2.  It is
       an error if SYMBOL2 is not defined in the current translation unit.
  
*************** File: gcc.info,  Node: Diagnostic Pragma
*** 44327,44347 ****
  
  GCC allows the user to selectively enable or disable certain types of
  diagnostics, and change the kind of the diagnostic.  For example, a
! project's policy might require that all sources compile with `-Werror'
  but certain files might have exceptions allowing specific types of
  warnings.  Or, a project might selectively enable diagnostics and treat
  them as errors depending on which preprocessor macros are defined.
  
! `#pragma GCC diagnostic KIND OPTION'
       Modifies the disposition of a diagnostic.  Note that not all
       diagnostics are modifiable; at the moment only warnings (normally
!      controlled by `-W...') can be controlled, and not all of them.
!      Use `-fdiagnostics-show-option' to determine which diagnostics are
       controllable and which option controls them.
  
!      KIND is `error' to treat this diagnostic as an error, `warning' to
!      treat it like a warning (even if `-Werror' is in effect), or
!      `ignored' if the diagnostic is to be ignored.  OPTION is a double
       quoted string that matches the command-line option.
  
            #pragma GCC diagnostic warning "-Wformat"
--- 43921,43942 ----
  
  GCC allows the user to selectively enable or disable certain types of
  diagnostics, and change the kind of the diagnostic.  For example, a
! project's policy might require that all sources compile with '-Werror'
  but certain files might have exceptions allowing specific types of
  warnings.  Or, a project might selectively enable diagnostics and treat
  them as errors depending on which preprocessor macros are defined.
  
! '#pragma GCC diagnostic KIND OPTION'
! 
       Modifies the disposition of a diagnostic.  Note that not all
       diagnostics are modifiable; at the moment only warnings (normally
!      controlled by '-W...') can be controlled, and not all of them.  Use
!      '-fdiagnostics-show-option' to determine which diagnostics are
       controllable and which option controls them.
  
!      KIND is 'error' to treat this diagnostic as an error, 'warning' to
!      treat it like a warning (even if '-Werror' is in effect), or
!      'ignored' if the diagnostic is to be ignored.  OPTION is a double
       quoted string that matches the command-line option.
  
            #pragma GCC diagnostic warning "-Wformat"
*************** them as errors depending on which prepro
*** 44354,44364 ****
       pragmas occurring after a line do not affect diagnostics caused by
       that line.
  
! `#pragma GCC diagnostic push'
! `#pragma GCC diagnostic pop'
       Causes GCC to remember the state of the diagnostics as of each
!      `push', and restore to that point at each `pop'.  If a `pop' has
!      no matching `push', the command-line options are restored.
  
            #pragma GCC diagnostic error "-Wuninitialized"
              foo(a);                       /* error is given for this one */
--- 43949,43960 ----
       pragmas occurring after a line do not affect diagnostics caused by
       that line.
  
! '#pragma GCC diagnostic push'
! '#pragma GCC diagnostic pop'
! 
       Causes GCC to remember the state of the diagnostics as of each
!      'push', and restore to that point at each 'pop'.  If a 'pop' has no
!      matching 'push', the command-line options are restored.
  
            #pragma GCC diagnostic error "-Wuninitialized"
              foo(a);                       /* error is given for this one */
*************** them as errors depending on which prepro
*** 44370,44382 ****
            #pragma GCC diagnostic pop
              foo(d);                       /* depends on command-line options */
  
- 
   GCC also offers a simple mechanism for printing messages during
  compilation.
  
! `#pragma message STRING'
!      Prints STRING as a compiler message on compilation.  The message
!      is informational only, and is neither a compilation warning nor an
       error.
  
            #pragma message "Compiling " __FILE__ "..."
--- 43966,43978 ----
            #pragma GCC diagnostic pop
              foo(d);                       /* depends on command-line options */
  
   GCC also offers a simple mechanism for printing messages during
  compilation.
  
! '#pragma message STRING'
! 
!      Prints STRING as a compiler message on compilation.  The message is
!      informational only, and is neither a compilation warning nor an
       error.
  
            #pragma message "Compiling " __FILE__ "..."
*************** compilation.
*** 44389,44416 ****
  
            TODO(Remember to fix this)
  
!      prints `/tmp/file.c:4: note: #pragma message: TODO - Remember to
       fix this'.
  
- 
  
  File: gcc.info,  Node: Visibility Pragmas,  Next: Push/Pop Macro Pragmas,  Prev: Diagnostic Pragmas,  Up: Pragmas
  
  6.61.13 Visibility Pragmas
  --------------------------
  
! `#pragma GCC visibility push(VISIBILITY)'
! `#pragma GCC visibility pop'
       This pragma allows the user to set the visibility for multiple
       declarations without having to give each a visibility attribute
       (*note Function Attributes::).
  
!      In C++, `#pragma GCC visibility' affects only namespace-scope
       declarations.  Class members and template specializations are not
       affected; if you want to override the visibility for a particular
       member or instantiation, you must use an attribute.
  
- 
  
  File: gcc.info,  Node: Push/Pop Macro Pragmas,  Next: Function Specific Option Pragmas,  Prev: Visibility Pragmas,  Up: Pragmas
  
--- 43985,44011 ----
  
            TODO(Remember to fix this)
  
!      prints '/tmp/file.c:4: note: #pragma message: TODO - Remember to
       fix this'.
  
  
  File: gcc.info,  Node: Visibility Pragmas,  Next: Push/Pop Macro Pragmas,  Prev: Diagnostic Pragmas,  Up: Pragmas
  
  6.61.13 Visibility Pragmas
  --------------------------
  
! '#pragma GCC visibility push(VISIBILITY)'
! '#pragma GCC visibility pop'
! 
       This pragma allows the user to set the visibility for multiple
       declarations without having to give each a visibility attribute
       (*note Function Attributes::).
  
!      In C++, '#pragma GCC visibility' affects only namespace-scope
       declarations.  Class members and template specializations are not
       affected; if you want to override the visibility for a particular
       member or instantiation, you must use an attribute.
  
  
  File: gcc.info,  Node: Push/Pop Macro Pragmas,  Next: Function Specific Option Pragmas,  Prev: Visibility Pragmas,  Up: Pragmas
  
*************** File: gcc.info,  Node: Push/Pop Macro Pr
*** 44418,44433 ****
  ------------------------------
  
  For compatibility with Microsoft Windows compilers, GCC supports
! `#pragma push_macro("MACRO_NAME")' and `#pragma
  pop_macro("MACRO_NAME")'.
  
! `#pragma push_macro("MACRO_NAME")'
!      This pragma saves the value of the macro named as MACRO_NAME to
!      the top of the stack for this macro.
  
! `#pragma pop_macro("MACRO_NAME")'
       This pragma sets the value of the macro named as MACRO_NAME to the
!      value on top of the stack for this macro. If the stack for
       MACRO_NAME is empty, the value of the macro remains unchanged.
  
   For example:
--- 44013,44028 ----
  ------------------------------
  
  For compatibility with Microsoft Windows compilers, GCC supports
! '#pragma push_macro("MACRO_NAME")' and '#pragma
  pop_macro("MACRO_NAME")'.
  
! '#pragma push_macro("MACRO_NAME")'
!      This pragma saves the value of the macro named as MACRO_NAME to the
!      top of the stack for this macro.
  
! '#pragma pop_macro("MACRO_NAME")'
       This pragma sets the value of the macro named as MACRO_NAME to the
!      value on top of the stack for this macro.  If the stack for
       MACRO_NAME is empty, the value of the macro remains unchanged.
  
   For example:
*************** pop_macro("MACRO_NAME")'.
*** 44439,44446 ****
       #pragma pop_macro("X")
       int x [X];
  
! In this example, the definition of X as 1 is saved by `#pragma
! push_macro' and restored by `#pragma pop_macro'.
  
  
  File: gcc.info,  Node: Function Specific Option Pragmas,  Next: Loop-Specific Pragmas,  Prev: Push/Pop Macro Pragmas,  Up: Pragmas
--- 44034,44041 ----
       #pragma pop_macro("X")
       int x [X];
  
! In this example, the definition of X as 1 is saved by '#pragma
! push_macro' and restored by '#pragma pop_macro'.
  
  
  File: gcc.info,  Node: Function Specific Option Pragmas,  Next: Loop-Specific Pragmas,  Prev: Push/Pop Macro Pragmas,  Up: Pragmas
*************** File: gcc.info,  Node: Function Specific
*** 44448,44484 ****
  6.61.15 Function Specific Option Pragmas
  ----------------------------------------
  
! `#pragma GCC target ("STRING"...)'
       This pragma allows you to set target specific options for functions
       defined later in the source file.  One or more strings can be
!      specified.  Each function that is defined after this point is as
!      if `attribute((target("STRING")))' was specified for that
!      function.  The parenthesis around the options is optional.  *Note
!      Function Attributes::, for more information about the `target'
!      attribute and the attribute syntax.
  
!      The `#pragma GCC target' pragma is presently implemented for x86,
       PowerPC, and Nios II targets only.
  
! `#pragma GCC optimize ("STRING"...)'
       This pragma allows you to set global optimization options for
       functions defined later in the source file.  One or more strings
       can be specified.  Each function that is defined after this point
!      is as if `attribute((optimize("STRING")))' was specified for that
       function.  The parenthesis around the options is optional.  *Note
!      Function Attributes::, for more information about the `optimize'
       attribute and the attribute syntax.
  
! `#pragma GCC push_options'
! `#pragma GCC pop_options'
       These pragmas maintain a stack of the current target and
       optimization options.  It is intended for include files where you
!      temporarily want to switch to using a different `#pragma GCC
!      target' or `#pragma GCC optimize' and then to pop back to the
       previous options.
  
! `#pragma GCC reset_options'
!      This pragma clears the current `#pragma GCC target' and `#pragma
       GCC optimize' to use the default switches as specified on the
       command line.
  
--- 44043,44083 ----
  6.61.15 Function Specific Option Pragmas
  ----------------------------------------
  
! '#pragma GCC target ("STRING"...)'
! 
       This pragma allows you to set target specific options for functions
       defined later in the source file.  One or more strings can be
!      specified.  Each function that is defined after this point is as if
!      'attribute((target("STRING")))' was specified for that function.
!      The parenthesis around the options is optional.  *Note Function
!      Attributes::, for more information about the 'target' attribute and
!      the attribute syntax.
  
!      The '#pragma GCC target' pragma is presently implemented for x86,
       PowerPC, and Nios II targets only.
  
! '#pragma GCC optimize ("STRING"...)'
! 
       This pragma allows you to set global optimization options for
       functions defined later in the source file.  One or more strings
       can be specified.  Each function that is defined after this point
!      is as if 'attribute((optimize("STRING")))' was specified for that
       function.  The parenthesis around the options is optional.  *Note
!      Function Attributes::, for more information about the 'optimize'
       attribute and the attribute syntax.
  
! '#pragma GCC push_options'
! '#pragma GCC pop_options'
! 
       These pragmas maintain a stack of the current target and
       optimization options.  It is intended for include files where you
!      temporarily want to switch to using a different '#pragma GCC
!      target' or '#pragma GCC optimize' and then to pop back to the
       previous options.
  
! '#pragma GCC reset_options'
! 
!      This pragma clears the current '#pragma GCC target' and '#pragma
       GCC optimize' to use the default switches as specified on the
       command line.
  
*************** File: gcc.info,  Node: Loop-Specific Pra
*** 44488,44499 ****
  6.61.16 Loop-Specific Pragmas
  -----------------------------
  
! `#pragma GCC ivdep'
  
   With this pragma, the programmer asserts that there are no loop-carried
! dependencies which would prevent consecutive iterations of the
! following loop from executing concurrently with SIMD (single
! instruction multiple data) instructions.
  
   For example, the compiler can only unconditionally vectorize the
  following loop with the pragma:
--- 44087,44098 ----
  6.61.16 Loop-Specific Pragmas
  -----------------------------
  
! '#pragma GCC ivdep'
  
   With this pragma, the programmer asserts that there are no loop-carried
! dependencies which would prevent consecutive iterations of the following
! loop from executing concurrently with SIMD (single instruction multiple
! data) instructions.
  
   For example, the compiler can only unconditionally vectorize the
  following loop with the pragma:
*************** following loop with the pragma:
*** 44506,44514 ****
           a[i] = b[i] + c[i];
       }
  
! In this example, using the `restrict' qualifier had the same effect. In
! the following example, that would not be possible. Assume k < -m or k
! >= m. Only with the pragma, the compiler knows that it can
  unconditionally vectorize the following loop:
  
       void ignore_vec_dep (int *a, int k, int c, int m)
--- 44105,44113 ----
           a[i] = b[i] + c[i];
       }
  
! In this example, using the 'restrict' qualifier had the same effect.  In
! the following example, that would not be possible.  Assume k < -m or k
! >= m.  Only with the pragma, the compiler knows that it can
  unconditionally vectorize the following loop:
  
       void ignore_vec_dep (int *a, int k, int c, int m)
*************** structures and unions without names.  Fo
*** 44538,44545 ****
       } foo;
  
  In this example, you are able to access members of the unnamed union
! with code like `foo.b'.  Note that only unnamed structs and unions are
! allowed, you may not have, for example, an unnamed `int'.
  
   You must never create such structures that cause ambiguous field
  definitions.  For example, in this structure:
--- 44137,44144 ----
       } foo;
  
  In this example, you are able to access members of the unnamed union
! with code like 'foo.b'.  Note that only unnamed structs and unions are
! allowed, you may not have, for example, an unnamed 'int'.
  
   You must never create such structures that cause ambiguous field
  definitions.  For example, in this structure:
*************** definitions.  For example, in this struc
*** 44551,44568 ****
         };
       } foo;
  
! it is ambiguous which `a' is being referred to with `foo.a'.  The
  compiler gives errors for such constructs.
  
!  Unless `-fms-extensions' is used, the unnamed field must be a
! structure or union definition without a tag (for example, `struct { int
! a; };').  If `-fms-extensions' is used, the field may also be a
! definition with a tag such as `struct foo { int a; };', a reference to
! a previously defined structure or union such as `struct foo;', or a
! reference to a `typedef' name for a previously defined structure or
! union type.
  
!  The option `-fplan9-extensions' enables `-fms-extensions' as well as
  two other extensions.  First, a pointer to a structure is automatically
  converted to a pointer to an anonymous field for assignments and
  function calls.  For example:
--- 44150,44166 ----
         };
       } foo;
  
! it is ambiguous which 'a' is being referred to with 'foo.a'.  The
  compiler gives errors for such constructs.
  
!  Unless '-fms-extensions' is used, the unnamed field must be a structure
! or union definition without a tag (for example, 'struct { int a; };').
! If '-fms-extensions' is used, the field may also be a definition with a
! tag such as 'struct foo { int a; };', a reference to a previously
! defined structure or union such as 'struct foo;', or a reference to a
! 'typedef' name for a previously defined structure or union type.
  
!  The option '-fplan9-extensions' enables '-fms-extensions' as well as
  two other extensions.  First, a pointer to a structure is automatically
  converted to a pointer to an anonymous field for assignments and
  function calls.  For example:
*************** function calls.  For example:
*** 44572,44583 ****
       extern void f1 (struct s1 *);
       void f2 (struct s2 *p) { f1 (p); }
  
! In the call to `f1' inside `f2', the pointer `p' is converted into a
  pointer to the anonymous field.
  
!  Second, when the type of an anonymous field is a `typedef' for a
! `struct' or `union', code may refer to the field using the name of the
! `typedef'.
  
       typedef struct { int a; } s1;
       struct s2 { s1; };
--- 44170,44181 ----
       extern void f1 (struct s1 *);
       void f2 (struct s2 *p) { f1 (p); }
  
! In the call to 'f1' inside 'f2', the pointer 'p' is converted into a
  pointer to the anonymous field.
  
!  Second, when the type of an anonymous field is a 'typedef' for a
! 'struct' or 'union', code may refer to the field using the name of the
! 'typedef'.
  
       typedef struct { int a; } s1;
       struct s2 { s1; };
*************** allocated such that there is one instanc
*** 44596,44617 ****
  thread.  The runtime model GCC uses to implement this originates in the
  IA-64 processor-specific ABI, but has since been migrated to other
  processors as well.  It requires significant support from the linker
! (`ld'), dynamic linker (`ld.so'), and system libraries (`libc.so' and
! `libpthread.so'), so it is not available everywhere.
  
   At the user level, the extension is visible with a new storage class
! keyword: `__thread'.  For example:
  
       __thread int i;
       extern __thread struct state s;
       static __thread char *p;
  
!  The `__thread' specifier may be used alone, with the `extern' or
! `static' specifiers, but with no other storage class specifier.  When
! used with `extern' or `static', `__thread' must appear immediately
! after the other storage class specifier.
  
!  The `__thread' specifier may be applied to any global, file-scoped
  static, function-scoped static, or static data member of a class.  It
  may not be applied to block-scoped automatic or non-static data member.
  
--- 44194,44215 ----
  thread.  The runtime model GCC uses to implement this originates in the
  IA-64 processor-specific ABI, but has since been migrated to other
  processors as well.  It requires significant support from the linker
! ('ld'), dynamic linker ('ld.so'), and system libraries ('libc.so' and
! 'libpthread.so'), so it is not available everywhere.
  
   At the user level, the extension is visible with a new storage class
! keyword: '__thread'.  For example:
  
       __thread int i;
       extern __thread struct state s;
       static __thread char *p;
  
!  The '__thread' specifier may be used alone, with the 'extern' or
! 'static' specifiers, but with no other storage class specifier.  When
! used with 'extern' or 'static', '__thread' must appear immediately after
! the other storage class specifier.
  
!  The '__thread' specifier may be applied to any global, file-scoped
  static, function-scoped static, or static data member of a class.  It
  may not be applied to block-scoped automatic or non-static data member.
  
*************** File: gcc.info,  Node: C99 Thread-Local
*** 44647,44653 ****
  The following are a set of changes to ISO/IEC 9899:1999 (aka C99) that
  document the exact semantics of the language extension.
  
!    * `5.1.2  Execution environments'
  
       Add new text after paragraph 1
  
--- 44245,44251 ----
  The following are a set of changes to ISO/IEC 9899:1999 (aka C99) that
  document the exact semantics of the language extension.
  
!    * '5.1.2 Execution environments'
  
       Add new text after paragraph 1
  
*************** document the exact semantics of the lang
*** 44660,44697 ****
            terminated.  However, objects with thread storage duration
            shall be initialized before thread startup.
  
!    * `6.2.4  Storage durations of objects'
  
       Add new text before paragraph 3
  
            An object whose identifier is declared with the storage-class
!           specifier `__thread' has "thread storage duration".  Its
!           lifetime is the entire execution of the thread, and its
!           stored value is initialized only once, prior to thread
!           startup.
  
!    * `6.4.1  Keywords'
  
!      Add `__thread'.
  
!    * `6.7.1  Storage-class specifiers'
  
!      Add `__thread' to the list of storage class specifiers in
!      paragraph 1.
  
       Change paragraph 2 to
  
!           With the exception of `__thread', at most one storage-class
!           specifier may be given [...].  The `__thread' specifier may
!           be used alone, or immediately following `extern' or `static'.
  
       Add new text after paragraph 6
  
!           The declaration of an identifier for a variable that has
!           block scope that specifies `__thread' shall also specify
!           either `extern' or `static'.
  
!           The `__thread' specifier shall be used only with variables.
  
  
  File: gcc.info,  Node: C++98 Thread-Local Edits,  Prev: C99 Thread-Local Edits,  Up: Thread-Local
--- 44258,44294 ----
            terminated.  However, objects with thread storage duration
            shall be initialized before thread startup.
  
!    * '6.2.4 Storage durations of objects'
  
       Add new text before paragraph 3
  
            An object whose identifier is declared with the storage-class
!           specifier '__thread' has "thread storage duration".  Its
!           lifetime is the entire execution of the thread, and its stored
!           value is initialized only once, prior to thread startup.
  
!    * '6.4.1 Keywords'
  
!      Add '__thread'.
  
!    * '6.7.1 Storage-class specifiers'
  
!      Add '__thread' to the list of storage class specifiers in paragraph
!      1.
  
       Change paragraph 2 to
  
!           With the exception of '__thread', at most one storage-class
!           specifier may be given [...].  The '__thread' specifier may be
!           used alone, or immediately following 'extern' or 'static'.
  
       Add new text after paragraph 6
  
!           The declaration of an identifier for a variable that has block
!           scope that specifies '__thread' shall also specify either
!           'extern' or 'static'.
  
!           The '__thread' specifier shall be used only with variables.
  
  
  File: gcc.info,  Node: C++98 Thread-Local Edits,  Prev: C99 Thread-Local Edits,  Up: Thread-Local
*************** that document the exact semantics of the
*** 44718,44737 ****
  
     * [lex.key]
  
!      Add `__thread'.
  
     * [basic.start.main]
  
       Add after paragraph 5
  
!           The thread that begins execution at the `main' function is
            called the "main thread".  It is implementation defined how
            functions beginning threads other than the main thread are
!           designated or typed.  A function so designated, as well as
!           the `main' function, is called a "thread startup function".
!           It is implementation defined what happens if a thread startup
            function returns.  It is implementation defined what happens
!           to other threads when any thread calls `exit'.
  
     * [basic.start.init]
  
--- 44315,44334 ----
  
     * [lex.key]
  
!      Add '__thread'.
  
     * [basic.start.main]
  
       Add after paragraph 5
  
!           The thread that begins execution at the 'main' function is
            called the "main thread".  It is implementation defined how
            functions beginning threads other than the main thread are
!           designated or typed.  A function so designated, as well as the
!           'main' function, is called a "thread startup function".  It is
!           implementation defined what happens if a thread startup
            function returns.  It is implementation defined what happens
!           to other threads when any thread calls 'exit'.
  
     * [basic.start.init]
  
*************** that document the exact semantics of the
*** 44739,44746 ****
  
            The storage for an object of thread storage duration shall be
            statically initialized before the first statement of the
!           thread startup function.  An object of thread storage
!           duration shall not require dynamic initialization.
  
     * [basic.start.term]
  
--- 44336,44343 ----
  
            The storage for an object of thread storage duration shall be
            statically initialized before the first statement of the
!           thread startup function.  An object of thread storage duration
!           shall not require dynamic initialization.
  
     * [basic.start.term]
  
*************** that document the exact semantics of the
*** 44757,44776 ****
  
       Change paragraph 2
  
!           Thread, static, and automatic storage durations are
!           associated with objects introduced by declarations [...].
  
!      Add `__thread' to the list of specifiers in paragraph 3.
  
     * [basic.stc.thread]
  
       New section before [basic.stc.static]
  
!           The keyword `__thread' applied to a non-local object gives the
            object thread storage duration.
  
!           A local variable or class data member declared both `static'
!           and `__thread' gives the variable or member thread storage
            duration.
  
     * [basic.stc.static]
--- 44354,44373 ----
  
       Change paragraph 2
  
!           Thread, static, and automatic storage durations are associated
!           with objects introduced by declarations [...].
  
!      Add '__thread' to the list of specifiers in paragraph 3.
  
     * [basic.stc.thread]
  
       New section before [basic.stc.static]
  
!           The keyword '__thread' applied to a non-local object gives the
            object thread storage duration.
  
!           A local variable or class data member declared both 'static'
!           and '__thread' gives the variable or member thread storage
            duration.
  
     * [basic.stc.static]
*************** that document the exact semantics of the
*** 44782,44816 ****
  
     * [dcl.stc]
  
!      Add `__thread' to the list in paragraph 1.
  
       Change paragraph 1
  
!           With the exception of `__thread', at most one
            STORAGE-CLASS-SPECIFIER shall appear in a given
!           DECL-SPECIFIER-SEQ.  The `__thread' specifier may be used
!           alone, or immediately following the `extern' or `static'
            specifiers.  [...]
  
       Add after paragraph 5
  
!           The `__thread' specifier can be applied only to the names of
            objects and to anonymous unions.
  
     * [class.mem]
  
       Add after paragraph 6
  
!           Non-`static' members shall not be `__thread'.
  
  
  File: gcc.info,  Node: Binary constants,  Prev: Thread-Local,  Up: C Extensions
  
! 6.64 Binary Constants using the `0b' Prefix
  ===========================================
  
  Integer constants can be written as binary constants, consisting of a
! sequence of `0' and `1' digits, prefixed by `0b' or `0B'.  This is
  particularly useful in environments that operate a lot on the bit level
  (like microcontrollers).
  
--- 44379,44413 ----
  
     * [dcl.stc]
  
!      Add '__thread' to the list in paragraph 1.
  
       Change paragraph 1
  
!           With the exception of '__thread', at most one
            STORAGE-CLASS-SPECIFIER shall appear in a given
!           DECL-SPECIFIER-SEQ.  The '__thread' specifier may be used
!           alone, or immediately following the 'extern' or 'static'
            specifiers.  [...]
  
       Add after paragraph 5
  
!           The '__thread' specifier can be applied only to the names of
            objects and to anonymous unions.
  
     * [class.mem]
  
       Add after paragraph 6
  
!           Non-'static' members shall not be '__thread'.
  
  
  File: gcc.info,  Node: Binary constants,  Prev: Thread-Local,  Up: C Extensions
  
! 6.64 Binary Constants using the '0b' Prefix
  ===========================================
  
  Integer constants can be written as binary constants, consisting of a
! sequence of '0' and '1' digits, prefixed by '0b' or '0B'.  This is
  particularly useful in environments that operate a lot on the bit level
  (like microcontrollers).
  
*************** particularly useful in environments that
*** 44822,44828 ****
       i = 0b101010;
  
   The type of these constants follows the same rules as for octal or
! hexadecimal integer constants, so suffixes like `L' or `UL' can be
  applied.
  
  
--- 44419,44425 ----
       i = 0b101010;
  
   The type of these constants follows the same rules as for octal or
! hexadecimal integer constants, so suffixes like 'L' or 'UL' can be
  applied.
  
  
*************** The GNU compiler provides these extensio
*** 44835,44842 ****
  can also use most of the C language extensions in your C++ programs).
  If you want to write code that checks whether these features are
  available, you can test for the GNU compiler the same way as for C
! programs: check for a predefined macro `__GNUC__'.  You can also use
! `__GNUG__' to test specifically for GNU C++ (*note Predefined Macros:
  (cpp)Common Predefined Macros.).
  
  * Menu:
--- 44432,44439 ----
  can also use most of the C language extensions in your C++ programs).
  If you want to write code that checks whether these features are
  available, you can test for the GNU compiler the same way as for C
! programs: check for a predefined macro '__GNUC__'.  You can also use
! '__GNUG__' to test specifically for GNU C++ (*note Predefined Macros:
  (cpp)Common Predefined Macros.).
  
  * Menu:
*************** programs: check for a predefined macro `
*** 44849,44855 ****
  * Template Instantiation:: Methods for ensuring that exactly one copy of
                          each needed template instantiation is emitted.
  * Bound member functions:: You can extract a function pointer to the
!                         method denoted by a `->*' or `.*' expression.
  * C++ Attributes::      Variable, function, and type attributes for C++ only.
  * Function Multiversioning::   Declaring multiple function versions.
  * Namespace Association:: Strong using-directives for namespace association.
--- 44446,44452 ----
  * Template Instantiation:: Methods for ensuring that exactly one copy of
                          each needed template instantiation is emitted.
  * Bound member functions:: You can extract a function pointer to the
!                         method denoted by a '->*' or '.*' expression.
  * C++ Attributes::      Variable, function, and type attributes for C++ only.
  * Function Multiversioning::   Declaring multiple function versions.
  * Namespace Association:: Strong using-directives for namespace association.
*************** lvalueness of expressions between C and
*** 44873,44880 ****
  G++ behaves the same as GCC for volatile access, *Note Volatiles: C
  Extensions, for a description of GCC's behavior.
  
!  The C and C++ language specifications differ when an object is
! accessed in a void context:
  
       volatile int *src = SOMEVALUE;
       *src;
--- 44470,44477 ----
  G++ behaves the same as GCC for volatile access, *Note Volatiles: C
  Extensions, for a description of GCC's behavior.
  
!  The C and C++ language specifications differ when an object is accessed
! in a void context:
  
       volatile int *src = SOMEVALUE;
       *src;
*************** File: gcc.info,  Node: Restricted Pointe
*** 44916,44924 ****
  ================================
  
  As with the C front end, G++ understands the C99 feature of restricted
! pointers, specified with the `__restrict__', or `__restrict' type
! qualifier.  Because you cannot compile C++ by specifying the `-std=c99'
! language flag, `restrict' is not a keyword in C++.
  
   In addition to allowing restricted pointers, you can specify restricted
  references, which indicate that the reference is not aliased in the
--- 44513,44521 ----
  ================================
  
  As with the C front end, G++ understands the C99 feature of restricted
! pointers, specified with the '__restrict__', or '__restrict' type
! qualifier.  Because you cannot compile C++ by specifying the '-std=c99'
! language flag, 'restrict' is not a keyword in C++.
  
   In addition to allowing restricted pointers, you can specify restricted
  references, which indicate that the reference is not aliased in the
*************** local context.
*** 44929,44955 ****
         /* ... */
       }
  
! In the body of `fn', RPTR points to an unaliased integer and RREF
! refers to a (different) unaliased integer.
  
   You may also specify whether a member function's THIS pointer is
! unaliased by using `__restrict__' as a member function qualifier.
  
       void T::fn () __restrict__
       {
         /* ... */
       }
  
! Within the body of `T::fn', THIS has the effective definition `T
  *__restrict__ const this'.  Notice that the interpretation of a
! `__restrict__' member function qualifier is different to that of
! `const' or `volatile' qualifier, in that it is applied to the pointer
! rather than the object.  This is consistent with other compilers that
! implement restricted pointers.
  
!  As with all outermost parameter qualifiers, `__restrict__' is ignored
  in function definition matching.  This means you only need to specify
! `__restrict__' in a function definition, rather than in a function
  prototype as well.
  
  
--- 44526,44552 ----
         /* ... */
       }
  
! In the body of 'fn', RPTR points to an unaliased integer and RREF refers
! to a (different) unaliased integer.
  
   You may also specify whether a member function's THIS pointer is
! unaliased by using '__restrict__' as a member function qualifier.
  
       void T::fn () __restrict__
       {
         /* ... */
       }
  
! Within the body of 'T::fn', THIS has the effective definition 'T
  *__restrict__ const this'.  Notice that the interpretation of a
! '__restrict__' member function qualifier is different to that of 'const'
! or 'volatile' qualifier, in that it is applied to the pointer rather
! than the object.  This is consistent with other compilers that implement
! restricted pointers.
  
!  As with all outermost parameter qualifiers, '__restrict__' is ignored
  in function definition matching.  This means you only need to specify
! '__restrict__' in a function definition, rather than in a function
  prototype as well.
  
  
*************** clever.
*** 44967,44982 ****
  Inline Functions
       Inline functions are typically defined in a header file which can
       be included in many different compilations.  Hopefully they can
!      usually be inlined, but sometimes an out-of-line copy is
!      necessary, if the address of the function is taken or if inlining
!      fails.  In general, we emit an out-of-line copy in all translation
!      units where one is needed.  As an exception, we only emit inline
!      virtual functions with the vtable, since it always requires a copy.
  
       Local static variables and string constants used in an inline
!      function are also considered to have vague linkage, since they
!      must be shared between all inlined and out-of-line instances of
!      the function.
  
  VTables
       C++ virtual functions are implemented in most compilers using a
--- 44564,44579 ----
  Inline Functions
       Inline functions are typically defined in a header file which can
       be included in many different compilations.  Hopefully they can
!      usually be inlined, but sometimes an out-of-line copy is necessary,
!      if the address of the function is taken or if inlining fails.  In
!      general, we emit an out-of-line copy in all translation units where
!      one is needed.  As an exception, we only emit inline virtual
!      functions with the vtable, since it always requires a copy.
  
       Local static variables and string constants used in an inline
!      function are also considered to have vague linkage, since they must
!      be shared between all inlined and out-of-line instances of the
!      function.
  
  VTables
       C++ virtual functions are implemented in most compilers using a
*************** VTables
*** 44993,45014 ****
       Make sure that any inline virtuals are declared inline in the class
       body, even if they are not defined there.
  
! `type_info' objects
       C++ requires information about types to be written out in order to
!      implement `dynamic_cast', `typeid' and exception handling.  For
       polymorphic classes (classes with virtual functions), the
!      `type_info' object is written out along with the vtable so that
!      `dynamic_cast' can determine the dynamic type of a class object at
!      run time.  For all other types, we write out the `type_info'
!      object when it is used: when applying `typeid' to an expression,
!      throwing an object, or referring to a type in a catch clause or
!      exception specification.
  
  Template Instantiations
       Most everything in this section also applies to template
!      instantiations, but there are other options as well.  *Note
!      Where's the Template?: Template Instantiation.
! 
  
   When used with GNU ld version 2.8 or later on an ELF system such as
  GNU/Linux or Solaris 2, or on Microsoft Windows, duplicate copies of
--- 44590,44610 ----
       Make sure that any inline virtuals are declared inline in the class
       body, even if they are not defined there.
  
! 'type_info' objects
       C++ requires information about types to be written out in order to
!      implement 'dynamic_cast', 'typeid' and exception handling.  For
       polymorphic classes (classes with virtual functions), the
!      'type_info' object is written out along with the vtable so that
!      'dynamic_cast' can determine the dynamic type of a class object at
!      run time.  For all other types, we write out the 'type_info' object
!      when it is used: when applying 'typeid' to an expression, throwing
!      an object, or referring to a type in a catch clause or exception
!      specification.
  
  Template Instantiations
       Most everything in this section also applies to template
!      instantiations, but there are other options as well.  *Note Where's
!      the Template?: Template Instantiation.
  
   When used with GNU ld version 2.8 or later on an ELF system such as
  GNU/Linux or Solaris 2, or on Microsoft Windows, duplicate copies of
*************** File: gcc.info,  Node: C++ Interface,  N
*** 45034,45111 ****
  7.4 C++ Interface and Implementation Pragmas
  ============================================
  
! `#pragma interface' and `#pragma implementation' provide the user with
! a way of explicitly directing the compiler to emit entities with vague
  linkage (and debugging information) in a particular translation unit.
  
!  _Note:_ These `#pragma's have been superceded as of GCC 2.7.2 by
! COMDAT support and the "key method" heuristic mentioned in *note Vague
  Linkage::.  Using them can actually cause your program to grow due to
  unnecessary out-of-line copies of inline functions.
  
! `#pragma interface'
! `#pragma interface "SUBDIR/OBJECTS.h"'
!      Use this directive in _header files_ that define object classes,
!      to save space in most of the object files that use those classes.
       Normally, local copies of certain information (backup copies of
       inline member functions, debugging information, and the internal
       tables that implement virtual functions) must be kept in each
       object file that includes class definitions.  You can use this
       pragma to avoid such duplication.  When a header file containing
!      `#pragma interface' is included in a compilation, this auxiliary
       information is not generated (unless the main input source file
!      itself uses `#pragma implementation').  Instead, the object files
       contain references to be resolved at link time.
  
       The second form of this directive is useful for the case where you
       have multiple headers with the same name in different directories.
!      If you use this form, you must specify the same string to `#pragma
       implementation'.
  
! `#pragma implementation'
! `#pragma implementation "OBJECTS.h"'
       Use this pragma in a _main input file_, when you want full output
       from included header files to be generated (and made globally
!      visible).  The included header file, in turn, should use `#pragma
       interface'.  Backup copies of inline member functions, debugging
       information, and the internal tables used to implement virtual
       functions are all generated in implementation files.
  
!      If you use `#pragma implementation' with no argument, it applies to
!      an include file with the same basename(1) as your source file.
!      For example, in `allclass.cc', giving just `#pragma implementation'
!      by itself is equivalent to `#pragma implementation "allclass.h"'.
  
       Use the string argument if you want a single implementation file to
       include code from multiple header files.  (You must also use
!      `#include' to include the header file; `#pragma implementation'
       only specifies how to use the file--it doesn't actually include
       it.)
  
       There is no way to split up the contents of a single header file
       into multiple implementation files.
  
!  `#pragma implementation' and `#pragma interface' also have an effect
! on function inlining.
  
!  If you define a class in a header file marked with `#pragma
! interface', the effect on an inline function defined in that class is
! similar to an explicit `extern' declaration--the compiler emits no code
! at all to define an independent version of the function.  Its
! definition is used only for inlining with its callers.
  
   Conversely, when you include the same header file in a main source file
! that declares it as `#pragma implementation', the compiler emits code
! for the function itself; this defines a version of the function that
! can be found via pointers (or by callers compiled without inlining).
! If all calls to the function can be inlined, you can avoid emitting the
! function by compiling with `-fno-implement-inlines'.  If any calls are
  not inlined, you will get linker errors.
  
!  ---------- Footnotes ----------
  
!  (1) A file's "basename" is the name stripped of all leading path
! information and of trailing suffixes, such as `.h' or `.C' or `.cc'.
  
  
  File: gcc.info,  Node: Template Instantiation,  Next: Bound member functions,  Prev: C++ Interface,  Up: C++ Extensions
--- 44630,44707 ----
  7.4 C++ Interface and Implementation Pragmas
  ============================================
  
! '#pragma interface' and '#pragma implementation' provide the user with a
! way of explicitly directing the compiler to emit entities with vague
  linkage (and debugging information) in a particular translation unit.
  
!  _Note:_ These '#pragma's have been superceded as of GCC 2.7.2 by COMDAT
! support and the "key method" heuristic mentioned in *note Vague
  Linkage::.  Using them can actually cause your program to grow due to
  unnecessary out-of-line copies of inline functions.
  
! '#pragma interface'
! '#pragma interface "SUBDIR/OBJECTS.h"'
!      Use this directive in _header files_ that define object classes, to
!      save space in most of the object files that use those classes.
       Normally, local copies of certain information (backup copies of
       inline member functions, debugging information, and the internal
       tables that implement virtual functions) must be kept in each
       object file that includes class definitions.  You can use this
       pragma to avoid such duplication.  When a header file containing
!      '#pragma interface' is included in a compilation, this auxiliary
       information is not generated (unless the main input source file
!      itself uses '#pragma implementation').  Instead, the object files
       contain references to be resolved at link time.
  
       The second form of this directive is useful for the case where you
       have multiple headers with the same name in different directories.
!      If you use this form, you must specify the same string to '#pragma
       implementation'.
  
! '#pragma implementation'
! '#pragma implementation "OBJECTS.h"'
       Use this pragma in a _main input file_, when you want full output
       from included header files to be generated (and made globally
!      visible).  The included header file, in turn, should use '#pragma
       interface'.  Backup copies of inline member functions, debugging
       information, and the internal tables used to implement virtual
       functions are all generated in implementation files.
  
!      If you use '#pragma implementation' with no argument, it applies to
!      an include file with the same basename(1) as your source file.  For
!      example, in 'allclass.cc', giving just '#pragma implementation' by
!      itself is equivalent to '#pragma implementation "allclass.h"'.
  
       Use the string argument if you want a single implementation file to
       include code from multiple header files.  (You must also use
!      '#include' to include the header file; '#pragma implementation'
       only specifies how to use the file--it doesn't actually include
       it.)
  
       There is no way to split up the contents of a single header file
       into multiple implementation files.
  
!  '#pragma implementation' and '#pragma interface' also have an effect on
! function inlining.
  
!  If you define a class in a header file marked with '#pragma interface',
! the effect on an inline function defined in that class is similar to an
! explicit 'extern' declaration--the compiler emits no code at all to
! define an independent version of the function.  Its definition is used
! only for inlining with its callers.
  
   Conversely, when you include the same header file in a main source file
! that declares it as '#pragma implementation', the compiler emits code
! for the function itself; this defines a version of the function that can
! be found via pointers (or by callers compiled without inlining).  If all
! calls to the function can be inlined, you can avoid emitting the
! function by compiling with '-fno-implement-inlines'.  If any calls are
  not inlined, you will get linker errors.
  
!    ---------- Footnotes ----------
  
!    (1) A file's "basename" is the name stripped of all leading path
! information and of trailing suffixes, such as '.h' or '.C' or '.cc'.
  
  
  File: gcc.info,  Node: Template Instantiation,  Next: Bound member functions,  Prev: C++ Interface,  Up: C++ Extensions
*************** problem, which are referred to as the Bo
*** 45122,45129 ****
  model.
  
  Borland model
!      Borland C++ solved the template instantiation problem by adding
!      the code equivalent of common blocks to their linker; the compiler
       emits template instances in each translation unit that uses them,
       and the linker collapses them together.  The advantage of this
       model is that the linker only has to consider the object files
--- 44718,44725 ----
  model.
  
  Borland model
!      Borland C++ solved the template instantiation problem by adding the
!      code equivalent of common blocks to their linker; the compiler
       emits template instances in each translation unit that uses them,
       and the linker collapses them together.  The advantage of this
       model is that the linker only has to consider the object files
*************** Borland model
*** 45136,45157 ****
  Cfront model
       The AT&T C++ translator, Cfront, solved the template instantiation
       problem by creating the notion of a template repository, an
!      automatically maintained place where template instances are
!      stored.  A more modern version of the repository works as follows:
!      As individual object files are built, the compiler places any
!      template definitions and instantiations encountered in the
!      repository.  At link time, the link wrapper adds in the objects in
!      the repository and compiles any needed instances that were not
!      previously emitted.  The advantages of this model are more optimal
!      compilation speed and the ability to use the system linker; to
!      implement the Borland model a compiler vendor also needs to
!      replace the linker.  The disadvantages are vastly increased
!      complexity, and thus potential for error; for some code this can be
!      just as transparent, but in practice it can been very difficult to
!      build multiple programs in one directory and one program in
!      multiple directories.  Code written for this model tends to
!      separate definitions of non-inline member templates into a
!      separate file, which should be compiled separately.
  
   G++ implements the Borland model on targets where the linker supports
  it, including ELF targets (such as GNU/Linux), Mac OS X and Microsoft
--- 44732,44753 ----
  Cfront model
       The AT&T C++ translator, Cfront, solved the template instantiation
       problem by creating the notion of a template repository, an
!      automatically maintained place where template instances are stored.
!      A more modern version of the repository works as follows: As
!      individual object files are built, the compiler places any template
!      definitions and instantiations encountered in the repository.  At
!      link time, the link wrapper adds in the objects in the repository
!      and compiles any needed instances that were not previously emitted.
!      The advantages of this model are more optimal compilation speed and
!      the ability to use the system linker; to implement the Borland
!      model a compiler vendor also needs to replace the linker.  The
!      disadvantages are vastly increased complexity, and thus potential
!      for error; for some code this can be just as transparent, but in
!      practice it can been very difficult to build multiple programs in
!      one directory and one program in multiple directories.  Code
!      written for this model tends to separate definitions of non-inline
!      member templates into a separate file, which should be compiled
!      separately.
  
   G++ implements the Borland model on targets where the linker supports
  it, including ELF targets (such as GNU/Linux), Mac OS X and Microsoft
*************** instantiations:
*** 45170,45176 ****
       explicit instantiation in one object file, and preventing the
       compiler from doing implicit instantiations in any other object
       files by using an explicit instantiation declaration, using the
!      `extern template' syntax:
  
            extern template int max (int, int);
  
--- 44766,44772 ----
       explicit instantiation in one object file, and preventing the
       compiler from doing implicit instantiations in any other object
       files by using an explicit instantiation declaration, using the
!      'extern template' syntax:
  
            extern template int max (int, int);
  
*************** instantiations:
*** 45179,45190 ****
  
       Explicit instantiations can be used for the largest or most
       frequently duplicated instances, without having to know exactly
!      which other instances are used in the rest of the program.  You
!      can scatter the explicit instantiations throughout your program,
       perhaps putting them in the translation units where the instances
       are used or the translation units that define the templates
!      themselves; you can put all of the explicit instantiations you
!      need into one big file; or you can create small files like
  
            #include "Foo.h"
            #include "Foo.cc"
--- 44775,44786 ----
  
       Explicit instantiations can be used for the largest or most
       frequently duplicated instances, without having to know exactly
!      which other instances are used in the rest of the program.  You can
!      scatter the explicit instantiations throughout your program,
       perhaps putting them in the translation units where the instances
       are used or the translation units that define the templates
!      themselves; you can put all of the explicit instantiations you need
!      into one big file; or you can create small files like
  
            #include "Foo.h"
            #include "Foo.cc"
*************** instantiations:
*** 45197,45211 ****
       instantiation library from those.
  
       This is the simplest option, but also offers flexibility and
!      fine-grained control when necessary. It is also the most portable
       alternative and programs using this approach will work with most
       modern compilers.
  
!   2. Compile your template-using code with `-frepo'.  The compiler
!      generates files with the extension `.rpo' listing all of the
       template instantiations used in the corresponding object files that
!      could be instantiated there; the link wrapper, `collect2', then
!      updates the `.rpo' files to tell the compiler where to place those
       instantiations and rebuild any affected object files.  The
       link-time overhead is negligible after the first pass, as the
       compiler continues to place the instantiations in the same files.
--- 44793,44807 ----
       instantiation library from those.
  
       This is the simplest option, but also offers flexibility and
!      fine-grained control when necessary.  It is also the most portable
       alternative and programs using this approach will work with most
       modern compilers.
  
!   2. Compile your template-using code with '-frepo'.  The compiler
!      generates files with the extension '.rpo' listing all of the
       template instantiations used in the corresponding object files that
!      could be instantiated there; the link wrapper, 'collect2', then
!      updates the '.rpo' files to tell the compiler where to place those
       instantiations and rebuild any affected object files.  The
       link-time overhead is negligible after the first pass, as the
       compiler continues to place the instantiations in the same files.
*************** instantiations:
*** 45214,45231 ****
       Borland model, as it usually just works.  Code written for the
       Cfront model needs to be modified so that the template definitions
       are available at one or more points of instantiation; usually this
!      is as simple as adding `#include <tmethods.cc>' to the end of each
       template header.
  
       For library code, if you want the library to provide all of the
       template instantiations it needs, just try to link all of its
       object files together; the link will fail, but cause the
       instantiations to be generated as a side effect.  Be warned,
!      however, that this may cause conflicts if multiple libraries try
!      to provide the same instantiations.  For greater control, use
!      explicit instantiation as described in the next option.
  
!   3. Compile your code with `-fno-implicit-templates' to disable the
       implicit generation of template instances, and explicitly
       instantiate all the ones you use.  This approach requires more
       knowledge of exactly which instances you need than do the others,
--- 44810,44827 ----
       Borland model, as it usually just works.  Code written for the
       Cfront model needs to be modified so that the template definitions
       are available at one or more points of instantiation; usually this
!      is as simple as adding '#include <tmethods.cc>' to the end of each
       template header.
  
       For library code, if you want the library to provide all of the
       template instantiations it needs, just try to link all of its
       object files together; the link will fail, but cause the
       instantiations to be generated as a side effect.  Be warned,
!      however, that this may cause conflicts if multiple libraries try to
!      provide the same instantiations.  For greater control, use explicit
!      instantiation as described in the next option.
  
!   3. Compile your code with '-fno-implicit-templates' to disable the
       implicit generation of template instances, and explicitly
       instantiate all the ones you use.  This approach requires more
       knowledge of exactly which instances you need than do the others,
*************** instantiations:
*** 45233,45253 ****
       ensure that only the intended instances are used.
  
       If you are using Cfront-model code, you can probably get away with
!      not using `-fno-implicit-templates' when compiling files that don't
!      `#include' the member template definitions.
  
       If you use one big file to do the instantiations, you may want to
!      compile it without `-fno-implicit-templates' so you get all of the
       instances required by your explicit instantiations (but not by any
       other files) without having to specify them as well.
  
!      In addition to forward declaration of explicit instantiations
!      (with `extern'), G++ has extended the template instantiation
!      syntax to support instantiation of the compiler support data for a
!      template class (i.e. the vtable) without instantiating any of its
!      members (with `inline'), and instantiation of only the static data
!      members of a template class, without the support data or member
!      functions (with `static'):
  
            inline template class Foo<int>;
            static template class Foo<int>;
--- 44829,44849 ----
       ensure that only the intended instances are used.
  
       If you are using Cfront-model code, you can probably get away with
!      not using '-fno-implicit-templates' when compiling files that don't
!      '#include' the member template definitions.
  
       If you use one big file to do the instantiations, you may want to
!      compile it without '-fno-implicit-templates' so you get all of the
       instances required by your explicit instantiations (but not by any
       other files) without having to specify them as well.
  
!      In addition to forward declaration of explicit instantiations (with
!      'extern'), G++ has extended the template instantiation syntax to
!      support instantiation of the compiler support data for a template
!      class (i.e. the vtable) without instantiating any of its members
!      (with 'inline'), and instantiation of only the static data members
!      of a template class, without the support data or member functions
!      (with 'static'):
  
            inline template class Foo<int>;
            static template class Foo<int>;
*************** File: gcc.info,  Node: Bound member func
*** 45260,45266 ****
  
  In C++, pointer to member functions (PMFs) are implemented using a wide
  pointer of sorts to handle all the possible call mechanisms; the PMF
! needs to store information about how to adjust the `this' pointer, and
  if the function pointed to is virtual, where to find the vtable, and
  where in the vtable to look for the member function.  If you are using
  PMFs in an inner loop, you should really reconsider that decision.  If
--- 44856,44862 ----
  
  In C++, pointer to member functions (PMFs) are implemented using a wide
  pointer of sorts to handle all the possible call mechanisms; the PMF
! needs to store information about how to adjust the 'this' pointer, and
  if the function pointed to is virtual, where to find the vtable, and
  where in the vtable to look for the member function.  If you are using
  PMFs in an inner loop, you should really reconsider that decision.  If
*************** function calls.
*** 45281,45293 ****
  
       fptr p = (fptr)(a.*fp);
  
!  For PMF constants (i.e. expressions of the form `&Klasse::Member'), no
  object is needed to obtain the address of the function.  They can be
  converted to function pointers directly:
  
       fptr p1 = (fptr)(&A::foo);
  
!  You must specify `-Wno-pmf-conversions' to use this extension.
  
  
  File: gcc.info,  Node: C++ Attributes,  Next: Function Multiversioning,  Prev: Bound member functions,  Up: C++ Extensions
--- 44877,44889 ----
  
       fptr p = (fptr)(a.*fp);
  
!  For PMF constants (i.e. expressions of the form '&Klasse::Member'), no
  object is needed to obtain the address of the function.  They can be
  converted to function pointers directly:
  
       fptr p1 = (fptr)(&A::foo);
  
!  You must specify '-Wno-pmf-conversions' to use this extension.
  
  
  File: gcc.info,  Node: C++ Attributes,  Next: Function Multiversioning,  Prev: Bound member functions,  Up: C++ Extensions
*************** File: gcc.info,  Node: C++ Attributes,
*** 45297,45313 ****
  
  Some attributes only make sense for C++ programs.
  
! `abi_tag ("TAG", ...)'
!      The `abi_tag' attribute can be applied to a function, variable, or
       class declaration.  It modifies the mangled name of the entity to
       incorporate the tag name, in order to distinguish the function or
       class from an earlier version with a different ABI; perhaps the
!      class has changed size, or the function has a different return
!      type that is not encoded in the mangled name.
  
       The attribute can also be applied to an inline namespace, but does
       not affect the mangled name of the namespace; in this case it is
!      only used for `-Wabi-tag' warnings and automatic tagging of
       functions and variables.  Tagging inline namespaces is generally
       preferable to tagging individual declarations, but the latter is
       sometimes necessary, such as when only certain members of a class
--- 44893,44909 ----
  
  Some attributes only make sense for C++ programs.
  
! 'abi_tag ("TAG", ...)'
!      The 'abi_tag' attribute can be applied to a function, variable, or
       class declaration.  It modifies the mangled name of the entity to
       incorporate the tag name, in order to distinguish the function or
       class from an earlier version with a different ABI; perhaps the
!      class has changed size, or the function has a different return type
!      that is not encoded in the mangled name.
  
       The attribute can also be applied to an inline namespace, but does
       not affect the mangled name of the namespace; in this case it is
!      only used for '-Wabi-tag' warnings and automatic tagging of
       functions and variables.  Tagging inline namespaces is generally
       preferable to tagging individual declarations, but the latter is
       sometimes necessary, such as when only certain members of a class
*************** Some attributes only make sense for C++
*** 45317,45356 ****
       strings are sorted on output, so the order of the list is
       unimportant.
  
!      A redeclaration of an entity must not add new ABI tags, since
!      doing so would change the mangled name.
  
       The ABI tags apply to a name, so all instantiations and
       specializations of a template have the same tags.  The attribute
       will be ignored if applied to an explicit specialization or
       instantiation.
  
!      The `-Wabi-tag' flag enables a warning about a class which does
!      not have all the ABI tags used by its subobjects and virtual
!      functions; for users with code that needs to coexist with an
!      earlier ABI, using this option can help to find all affected types
!      that need to be tagged.
  
       When a type involving an ABI tag is used as the type of a variable
       or return type of a function where that tag is not already present
       in the signature of the function, the tag is automatically applied
!      to the variable or function.  `-Wabi-tag' also warns about this
       situation; this warning can be avoided by explicitly tagging the
       variable or function or moving it into a tagged inline namespace.
  
! `init_priority (PRIORITY)'
       In Standard C++, objects defined at namespace scope are guaranteed
       to be initialized in an order in strict accordance with that of
       their definitions _in a given translation unit_.  No guarantee is
       made for initializations across translation units.  However, GNU
       C++ allows users to control the order of initialization of objects
!      defined at namespace scope with the `init_priority' attribute by
       specifying a relative PRIORITY, a constant integral expression
       currently bounded between 101 and 65535 inclusive.  Lower numbers
       indicate a higher priority.
  
!      In the following example, `A' would normally be created before
!      `B', but the `init_priority' attribute reverses that order:
  
            Some_Class  A  __attribute__ ((init_priority (2000)));
            Some_Class  B  __attribute__ ((init_priority (543)));
--- 44913,44953 ----
       strings are sorted on output, so the order of the list is
       unimportant.
  
!      A redeclaration of an entity must not add new ABI tags, since doing
!      so would change the mangled name.
  
       The ABI tags apply to a name, so all instantiations and
       specializations of a template have the same tags.  The attribute
       will be ignored if applied to an explicit specialization or
       instantiation.
  
!      The '-Wabi-tag' flag enables a warning about a class which does not
!      have all the ABI tags used by its subobjects and virtual functions;
!      for users with code that needs to coexist with an earlier ABI,
!      using this option can help to find all affected types that need to
!      be tagged.
  
       When a type involving an ABI tag is used as the type of a variable
       or return type of a function where that tag is not already present
       in the signature of the function, the tag is automatically applied
!      to the variable or function.  '-Wabi-tag' also warns about this
       situation; this warning can be avoided by explicitly tagging the
       variable or function or moving it into a tagged inline namespace.
  
! 'init_priority (PRIORITY)'
! 
       In Standard C++, objects defined at namespace scope are guaranteed
       to be initialized in an order in strict accordance with that of
       their definitions _in a given translation unit_.  No guarantee is
       made for initializations across translation units.  However, GNU
       C++ allows users to control the order of initialization of objects
!      defined at namespace scope with the 'init_priority' attribute by
       specifying a relative PRIORITY, a constant integral expression
       currently bounded between 101 and 65535 inclusive.  Lower numbers
       indicate a higher priority.
  
!      In the following example, 'A' would normally be created before 'B',
!      but the 'init_priority' attribute reverses that order:
  
            Some_Class  A  __attribute__ ((init_priority (2000)));
            Some_Class  B  __attribute__ ((init_priority (543)));
*************** Some attributes only make sense for C++
*** 45358,45385 ****
       Note that the particular values of PRIORITY do not matter; only
       their relative ordering.
  
! `java_interface'
!      This type attribute informs C++ that the class is a Java
!      interface.  It may only be applied to classes declared within an
!      `extern "Java"' block.  Calls to methods declared in this
!      interface are dispatched using GCJ's interface table mechanism,
!      instead of regular virtual table dispatch.
  
- `warn_unused'
       For C++ types with non-trivial constructors and/or destructors it
       is impossible for the compiler to determine whether a variable of
!      this type is truly unused if it is not referenced. This type
       attribute informs the compiler that variables of this type should
!      be warned about if they appear to be unused, just like variables
!      of fundamental types.
  
       This attribute is appropriate for types which just represent a
!      value, such as `std::string'; it is not appropriate for types which
!      control a resource, such as `std::lock_guard'.
! 
!      This attribute is also accepted in C, but it is unnecessary
!      because C does not have constructors or destructors.
  
  
   See also *note Namespace Association::.
  
--- 44955,44983 ----
       Note that the particular values of PRIORITY do not matter; only
       their relative ordering.
  
! 'java_interface'
! 
!      This type attribute informs C++ that the class is a Java interface.
!      It may only be applied to classes declared within an 'extern
!      "Java"' block.  Calls to methods declared in this interface are
!      dispatched using GCJ's interface table mechanism, instead of
!      regular virtual table dispatch.
! 
! 'warn_unused'
  
       For C++ types with non-trivial constructors and/or destructors it
       is impossible for the compiler to determine whether a variable of
!      this type is truly unused if it is not referenced.  This type
       attribute informs the compiler that variables of this type should
!      be warned about if they appear to be unused, just like variables of
!      fundamental types.
  
       This attribute is appropriate for types which just represent a
!      value, such as 'std::string'; it is not appropriate for types which
!      control a resource, such as 'std::lock_guard'.
  
+      This attribute is also accepted in C, but it is unnecessary because
+      C does not have constructors or destructors.
  
   See also *note Namespace Association::.
  
*************** the execution platform.  Here is an exam
*** 45430,45444 ****
         return 0;
       }
  
!  In the above example, four versions of function foo are created. The
  first version of foo with the target attribute "default" is the default
  version.  This version gets executed when no other target specific
! version qualifies for execution on a particular platform. A new version
  of foo is created by using the same function signature but with a
  different target string.  Function foo is called or a pointer to it is
  taken just like a regular function.  GCC takes care of doing the
! dispatching to call the right version at runtime.  Refer to the GCC
! wiki on Function Multiversioning
  (http://gcc.gnu.org/wiki/FunctionMultiVersioning) for more details.
  
  
--- 45028,45042 ----
         return 0;
       }
  
!  In the above example, four versions of function foo are created.  The
  first version of foo with the target attribute "default" is the default
  version.  This version gets executed when no other target specific
! version qualifies for execution on a particular platform.  A new version
  of foo is created by using the same function signature but with a
  different target string.  Function foo is called or a pointer to it is
  taken just like a regular function.  GCC takes care of doing the
! dispatching to call the right version at runtime.  Refer to the GCC wiki
! on Function Multiversioning
  (http://gcc.gnu.org/wiki/FunctionMultiVersioning) for more details.
  
  
*************** File: gcc.info,  Node: Namespace Associa
*** 45451,45457 ****
  inline namespaces.  Users should use inline namespaces instead as this
  extension will be removed in future versions of G++.
  
!  A using-directive with `__attribute ((strong))' is stronger than a
  normal using-directive in two ways:
  
     * Templates from the used namespace can be specialized and explicitly
--- 45049,45055 ----
  inline namespaces.  Users should use inline namespaces instead as this
  extension will be removed in future versions of G++.
  
!  A using-directive with '__attribute ((strong))' is stronger than a
  normal using-directive in two ways:
  
     * Templates from the used namespace can be specialized and explicitly
*************** The C++ front end implements syntactic e
*** 45493,45670 ****
  compile-time determination of various characteristics of a type (or of a
  pair of types).
  
! `__has_nothrow_assign (type)'
!      If `type' is const qualified or is a reference type then the trait
!      is false.  Otherwise if `__has_trivial_assign (type)' is true then
!      the trait is true, else if `type' is a cv class or union type with
       copy assignment operators that are known not to throw an exception
!      then the trait is true, else it is false.  Requires: `type' shall
!      be a complete type, (possibly cv-qualified) `void', or an array of
       unknown bound.
  
! `__has_nothrow_copy (type)'
!      If `__has_trivial_copy (type)' is true then the trait is true,
!      else if `type' is a cv class or union type with copy constructors
!      that are known not to throw an exception then the trait is true,
!      else it is false.  Requires: `type' shall be a complete type,
!      (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__has_nothrow_constructor (type)'
!      If `__has_trivial_constructor (type)' is true then the trait is
!      true, else if `type' is a cv class or union type (or array
!      thereof) with a default constructor that is known not to throw an
!      exception then the trait is true, else it is false.  Requires:
!      `type' shall be a complete type, (possibly cv-qualified) `void',
!      or an array of unknown bound.
  
! `__has_trivial_assign (type)'
!      If `type' is const qualified or is a reference type then the trait
!      is false.  Otherwise if `__is_pod (type)' is true then the trait is
!      true, else if `type' is a cv class or union type with a trivial
       copy assignment ([class.copy]) then the trait is true, else it is
!      false.  Requires: `type' shall be a complete type, (possibly
!      cv-qualified) `void', or an array of unknown bound.
  
! `__has_trivial_copy (type)'
!      If `__is_pod (type)' is true or `type' is a reference type then
!      the trait is true, else if `type' is a cv class or union type with
!      a trivial copy constructor ([class.copy]) then the trait is true,
!      else it is false.  Requires: `type' shall be a complete type,
!      (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__has_trivial_constructor (type)'
!      If `__is_pod (type)' is true then the trait is true, else if
!      `type' is a cv class or union type (or array thereof) with a
!      trivial default constructor ([class.ctor]) then the trait is true,
!      else it is false.  Requires: `type' shall be a complete type,
!      (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__has_trivial_destructor (type)'
!      If `__is_pod (type)' is true or `type' is a reference type then
!      the trait is true, else if `type' is a cv class or union type (or
!      array thereof) with a trivial destructor ([class.dtor]) then the
!      trait is true, else it is false.  Requires: `type' shall be a
!      complete type, (possibly cv-qualified) `void', or an array of
!      unknown bound.
  
! `__has_virtual_destructor (type)'
!      If `type' is a class type with a virtual destructor ([class.dtor])
!      then the trait is true, else it is false.  Requires: `type' shall
!      be a complete type, (possibly cv-qualified) `void', or an array of
       unknown bound.
  
! `__is_abstract (type)'
!      If `type' is an abstract class ([class.abstract]) then the trait
!      is true, else it is false.  Requires: `type' shall be a complete
!      type, (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__is_base_of (base_type, derived_type)'
!      If `base_type' is a base class of `derived_type' ([class.derived])
       then the trait is true, otherwise it is false.  Top-level cv
!      qualifications of `base_type' and `derived_type' are ignored.  For
!      the purposes of this trait, a class type is considered is own
!      base.  Requires: if `__is_class (base_type)' and `__is_class
!      (derived_type)' are true and `base_type' and `derived_type' are
!      not the same type (disregarding cv-qualifiers), `derived_type'
!      shall be a complete type.  A diagnostic is produced if this
!      requirement is not met.
  
! `__is_class (type)'
!      If `type' is a cv class type, and not a union type
       ([basic.compound]) the trait is true, else it is false.
  
! `__is_empty (type)'
!      If `__is_class (type)' is false then the trait is false.
!      Otherwise `type' is considered empty if and only if: `type' has no
!      non-static data members, or all non-static data members, if any,
!      are bit-fields of length 0, and `type' has no virtual members, and
!      `type' has no virtual base classes, and `type' has no base classes
!      `base_type' for which `__is_empty (base_type)' is false.
!      Requires: `type' shall be a complete type, (possibly cv-qualified)
!      `void', or an array of unknown bound.
  
! `__is_enum (type)'
!      If `type' is a cv enumeration type ([basic.compound]) the trait is
       true, else it is false.
  
! `__is_literal_type (type)'
!      If `type' is a literal type ([basic.types]) the trait is true,
!      else it is false.  Requires: `type' shall be a complete type,
!      (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__is_pod (type)'
!      If `type' is a cv POD type ([basic.types]) then the trait is true,
!      else it is false.  Requires: `type' shall be a complete type,
!      (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__is_polymorphic (type)'
!      If `type' is a polymorphic class ([class.virtual]) then the trait
!      is true, else it is false.  Requires: `type' shall be a complete
!      type, (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__is_standard_layout (type)'
!      If `type' is a standard-layout type ([basic.types]) the trait is
!      true, else it is false.  Requires: `type' shall be a complete
!      type, (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__is_trivial (type)'
!      If `type' is a trivial type ([basic.types]) the trait is true,
!      else it is false.  Requires: `type' shall be a complete type,
!      (possibly cv-qualified) `void', or an array of unknown bound.
  
! `__is_union (type)'
!      If `type' is a cv union type ([basic.compound]) the trait is true,
       else it is false.
  
! `__underlying_type (type)'
!      The underlying type of `type'.  Requires: `type' shall be an
       enumeration type ([dcl.enum]).
  
- 
  
  File: gcc.info,  Node: C++ Concepts,  Next: Java Exceptions,  Prev: Type Traits,  Up: C++ Extensions
  
  7.11 C++ Concepts
  =================
  
! C++ concepts provide much-improved support for generic programming. In
  particular, they allow the specification of constraints on template
! arguments.  The constraints are used to extend the usual overloading
! and partial specialization capabilities of the language, allowing
! generic data structures and algorithms to be "refined" based on their
! properties rather than their type names.
  
   The following keywords are reserved for concepts.
  
! `assumes'
       States an expression as an assumption, and if possible, verifies
!      that the assumption is valid. For example, `assume(n > 0)'.
  
! `axiom'
!      Introduces an axiom definition. Axioms introduce requirements on
       values.
  
! `forall'
!      Introduces a universally quantified object in an axiom. For
!      example, `forall (int n) n + 0 == n').
  
! `concept'
!      Introduces a concept definition. Concepts are sets of syntactic
       and semantic requirements on types and their values.
  
! `requires'
       Introduces constraints on template arguments or requirements for a
       member function of a class template.
  
- 
   The front end also exposes a number of internal mechanism that can be
! used to simplify the writing of type traits. Note that some of these
  traits are likely to be removed in the future.
  
! `__is_same (type1, type2)'
       A binary type trait: true whenever the type arguments are the same.
  
- 
  
  File: gcc.info,  Node: Java Exceptions,  Next: Deprecated Features,  Prev: C++ Concepts,  Up: C++ Extensions
  
--- 45091,45264 ----
  compile-time determination of various characteristics of a type (or of a
  pair of types).
  
! '__has_nothrow_assign (type)'
!      If 'type' is const qualified or is a reference type then the trait
!      is false.  Otherwise if '__has_trivial_assign (type)' is true then
!      the trait is true, else if 'type' is a cv class or union type with
       copy assignment operators that are known not to throw an exception
!      then the trait is true, else it is false.  Requires: 'type' shall
!      be a complete type, (possibly cv-qualified) 'void', or an array of
       unknown bound.
  
! '__has_nothrow_copy (type)'
!      If '__has_trivial_copy (type)' is true then the trait is true, else
!      if 'type' is a cv class or union type with copy constructors that
!      are known not to throw an exception then the trait is true, else it
!      is false.  Requires: 'type' shall be a complete type, (possibly
!      cv-qualified) 'void', or an array of unknown bound.
  
! '__has_nothrow_constructor (type)'
!      If '__has_trivial_constructor (type)' is true then the trait is
!      true, else if 'type' is a cv class or union type (or array thereof)
!      with a default constructor that is known not to throw an exception
!      then the trait is true, else it is false.  Requires: 'type' shall
!      be a complete type, (possibly cv-qualified) 'void', or an array of
!      unknown bound.
  
! '__has_trivial_assign (type)'
!      If 'type' is const qualified or is a reference type then the trait
!      is false.  Otherwise if '__is_pod (type)' is true then the trait is
!      true, else if 'type' is a cv class or union type with a trivial
       copy assignment ([class.copy]) then the trait is true, else it is
!      false.  Requires: 'type' shall be a complete type, (possibly
!      cv-qualified) 'void', or an array of unknown bound.
  
! '__has_trivial_copy (type)'
!      If '__is_pod (type)' is true or 'type' is a reference type then the
!      trait is true, else if 'type' is a cv class or union type with a
!      trivial copy constructor ([class.copy]) then the trait is true,
!      else it is false.  Requires: 'type' shall be a complete type,
!      (possibly cv-qualified) 'void', or an array of unknown bound.
  
! '__has_trivial_constructor (type)'
!      If '__is_pod (type)' is true then the trait is true, else if 'type'
!      is a cv class or union type (or array thereof) with a trivial
!      default constructor ([class.ctor]) then the trait is true, else it
!      is false.  Requires: 'type' shall be a complete type, (possibly
!      cv-qualified) 'void', or an array of unknown bound.
  
! '__has_trivial_destructor (type)'
!      If '__is_pod (type)' is true or 'type' is a reference type then the
!      trait is true, else if 'type' is a cv class or union type (or array
!      thereof) with a trivial destructor ([class.dtor]) then the trait is
!      true, else it is false.  Requires: 'type' shall be a complete type,
!      (possibly cv-qualified) 'void', or an array of unknown bound.
  
! '__has_virtual_destructor (type)'
!      If 'type' is a class type with a virtual destructor ([class.dtor])
!      then the trait is true, else it is false.  Requires: 'type' shall
!      be a complete type, (possibly cv-qualified) 'void', or an array of
       unknown bound.
  
! '__is_abstract (type)'
!      If 'type' is an abstract class ([class.abstract]) then the trait is
!      true, else it is false.  Requires: 'type' shall be a complete type,
!      (possibly cv-qualified) 'void', or an array of unknown bound.
  
! '__is_base_of (base_type, derived_type)'
!      If 'base_type' is a base class of 'derived_type' ([class.derived])
       then the trait is true, otherwise it is false.  Top-level cv
!      qualifications of 'base_type' and 'derived_type' are ignored.  For
!      the purposes of this trait, a class type is considered is own base.
!      Requires: if '__is_class (base_type)' and '__is_class
!      (derived_type)' are true and 'base_type' and 'derived_type' are not
!      the same type (disregarding cv-qualifiers), 'derived_type' shall be
!      a complete type.  A diagnostic is produced if this requirement is
!      not met.
  
! '__is_class (type)'
!      If 'type' is a cv class type, and not a union type
       ([basic.compound]) the trait is true, else it is false.
  
! '__is_empty (type)'
!      If '__is_class (type)' is false then the trait is false.  Otherwise
!      'type' is considered empty if and only if: 'type' has no non-static
!      data members, or all non-static data members, if any, are
!      bit-fields of length 0, and 'type' has no virtual members, and
!      'type' has no virtual base classes, and 'type' has no base classes
!      'base_type' for which '__is_empty (base_type)' is false.  Requires:
!      'type' shall be a complete type, (possibly cv-qualified) 'void', or
!      an array of unknown bound.
  
! '__is_enum (type)'
!      If 'type' is a cv enumeration type ([basic.compound]) the trait is
       true, else it is false.
  
! '__is_literal_type (type)'
!      If 'type' is a literal type ([basic.types]) the trait is true, else
!      it is false.  Requires: 'type' shall be a complete type, (possibly
!      cv-qualified) 'void', or an array of unknown bound.
  
! '__is_pod (type)'
!      If 'type' is a cv POD type ([basic.types]) then the trait is true,
!      else it is false.  Requires: 'type' shall be a complete type,
!      (possibly cv-qualified) 'void', or an array of unknown bound.
  
! '__is_polymorphic (type)'
!      If 'type' is a polymorphic class ([class.virtual]) then the trait
!      is true, else it is false.  Requires: 'type' shall be a complete
!      type, (possibly cv-qualified) 'void', or an array of unknown bound.
  
! '__is_standard_layout (type)'
!      If 'type' is a standard-layout type ([basic.types]) the trait is
!      true, else it is false.  Requires: 'type' shall be a complete type,
!      (possibly cv-qualified) 'void', or an array of unknown bound.
  
! '__is_trivial (type)'
!      If 'type' is a trivial type ([basic.types]) the trait is true, else
!      it is false.  Requires: 'type' shall be a complete type, (possibly
!      cv-qualified) 'void', or an array of unknown bound.
  
! '__is_union (type)'
!      If 'type' is a cv union type ([basic.compound]) the trait is true,
       else it is false.
  
! '__underlying_type (type)'
!      The underlying type of 'type'.  Requires: 'type' shall be an
       enumeration type ([dcl.enum]).
  
  
  File: gcc.info,  Node: C++ Concepts,  Next: Java Exceptions,  Prev: Type Traits,  Up: C++ Extensions
  
  7.11 C++ Concepts
  =================
  
! C++ concepts provide much-improved support for generic programming.  In
  particular, they allow the specification of constraints on template
! arguments.  The constraints are used to extend the usual overloading and
! partial specialization capabilities of the language, allowing generic
! data structures and algorithms to be "refined" based on their properties
! rather than their type names.
  
   The following keywords are reserved for concepts.
  
! 'assumes'
       States an expression as an assumption, and if possible, verifies
!      that the assumption is valid.  For example, 'assume(n > 0)'.
  
! 'axiom'
!      Introduces an axiom definition.  Axioms introduce requirements on
       values.
  
! 'forall'
!      Introduces a universally quantified object in an axiom.  For
!      example, 'forall (int n) n + 0 == n').
  
! 'concept'
!      Introduces a concept definition.  Concepts are sets of syntactic
       and semantic requirements on types and their values.
  
! 'requires'
       Introduces constraints on template arguments or requirements for a
       member function of a class template.
  
   The front end also exposes a number of internal mechanism that can be
! used to simplify the writing of type traits.  Note that some of these
  traits are likely to be removed in the future.
  
! '__is_same (type1, type2)'
       A binary type trait: true whenever the type arguments are the same.
  
  
  File: gcc.info,  Node: Java Exceptions,  Next: Deprecated Features,  Prev: C++ Concepts,  Up: C++ Extensions
  
*************** problematic code is:
*** 45687,45697 ****
         }
  
  The usual effect of an incorrect guess is a link failure, complaining of
! a missing routine called `__gxx_personality_v0'.
  
   You can inform the compiler that Java exceptions are to be used in a
  translation unit, irrespective of what it might think, by writing
! `#pragma GCC java_exceptions' at the head of the file.  This `#pragma'
  must appear before any functions that throw or catch exceptions, or run
  destructors when exceptions are thrown through them.
  
--- 45281,45291 ----
         }
  
  The usual effect of an incorrect guess is a link failure, complaining of
! a missing routine called '__gxx_personality_v0'.
  
   You can inform the compiler that Java exceptions are to be used in a
  translation unit, irrespective of what it might think, by writing
! '#pragma GCC java_exceptions' at the head of the file.  This '#pragma'
  must appear before any functions that throw or catch exceptions, or run
  destructors when exceptions are thrown through them.
  
*************** cases, the feature might be gone already
*** 45716,45746 ****
   While the list below is not exhaustive, it documents some of the
  options that are now deprecated:
  
! `-fexternal-templates'
! `-falt-external-templates'
       These are two of the many ways for G++ to implement template
       instantiation.  *Note Template Instantiation::.  The C++ standard
       clearly defines how template definitions have to be organized
       across implementation units.  G++ has an implicit instantiation
       mechanism that should work just fine for standard-conforming code.
  
! `-fstrict-prototype'
! `-fno-strict-prototype'
!      Previously it was possible to use an empty prototype parameter
!      list to indicate an unspecified number of parameters (like C),
!      rather than no parameters, as C++ demands.  This feature has been
!      removed, except where it is required for backwards compatibility.
!      *Note Backwards Compatibility::.
  
!  G++ allows a virtual function returning `void *' to be overridden by
! one returning a different pointer type.  This extension to the
! covariant return type rules is now deprecated and will be removed from a
! future version.
  
!  The G++ minimum and maximum operators (`<?' and `>?') and their
! compound forms (`<?=') and `>?=') have been deprecated and are now
  removed from G++.  Code using these operators should be modified to use
! `std::min' and `std::max' instead.
  
   The named return value extension has been deprecated, and is now
  removed from G++.
--- 45310,45340 ----
   While the list below is not exhaustive, it documents some of the
  options that are now deprecated:
  
! '-fexternal-templates'
! '-falt-external-templates'
       These are two of the many ways for G++ to implement template
       instantiation.  *Note Template Instantiation::.  The C++ standard
       clearly defines how template definitions have to be organized
       across implementation units.  G++ has an implicit instantiation
       mechanism that should work just fine for standard-conforming code.
  
! '-fstrict-prototype'
! '-fno-strict-prototype'
!      Previously it was possible to use an empty prototype parameter list
!      to indicate an unspecified number of parameters (like C), rather
!      than no parameters, as C++ demands.  This feature has been removed,
!      except where it is required for backwards compatibility.  *Note
!      Backwards Compatibility::.
  
!  G++ allows a virtual function returning 'void *' to be overridden by
! one returning a different pointer type.  This extension to the covariant
! return type rules is now deprecated and will be removed from a future
! version.
  
!  The G++ minimum and maximum operators ('<?' and '>?') and their
! compound forms ('<?=') and '>?=') have been deprecated and are now
  removed from G++.  Code using these operators should be modified to use
! 'std::min' and 'std::max' instead.
  
   The named return value extension has been deprecated, and is now
  removed from G++.
*************** and other places where they are not perm
*** 45759,45769 ****
  deprecated and will be removed from a future version of G++.
  
   G++ allows floating-point literals to appear in integral constant
! expressions, e.g. ` enum E { e = int(2.2 * 3.7) } ' This extension is
  deprecated and will be removed from a future version.
  
   G++ allows static data members of const floating-point type to be
! declared with an initializer in a class definition. The standard only
  allows initializers for static members of const integral types and const
  enumeration types so this extension has been deprecated and will be
  removed from a future version.
--- 45353,45363 ----
  deprecated and will be removed from a future version of G++.
  
   G++ allows floating-point literals to appear in integral constant
! expressions, e.g. ' enum E { e = int(2.2 * 3.7) } ' This extension is
  deprecated and will be removed from a future version.
  
   G++ allows static data members of const floating-point type to be
! declared with an initializer in a class definition.  The standard only
  allows initializers for static members of const integral types and const
  enumeration types so this extension has been deprecated and will be
  removed from a future version.
*************** used to be acceptable in previous drafts
*** 45780,45800 ****
  ARM [Annotated C++ Reference Manual], are no longer accepted.  In order
  to allow compilation of C++ written to such drafts, G++ contains some
  backwards compatibilities.  _All such backwards compatibility features
! are liable to disappear in future versions of G++._ They should be
! considered deprecated.   *Note Deprecated Features::.
  
! `For scope'
       If a variable is declared at for scope, it used to remain in scope
!      until the end of the scope that contained the for statement
!      (rather than just within the for scope).  G++ retains this, but
!      issues a warning, if such a variable is accessed outside the for
!      scope.
  
! `Implicit C language'
!      Old C system header files did not contain an `extern "C" {...}'
       scope to set the language.  On such systems, all header files are
       implicitly scoped inside a C language scope.  Also, an empty
!      prototype `()' is treated as an unspecified number of arguments,
       rather than no arguments, as C++ demands.
  
  
--- 45374,45393 ----
  ARM [Annotated C++ Reference Manual], are no longer accepted.  In order
  to allow compilation of C++ written to such drafts, G++ contains some
  backwards compatibilities.  _All such backwards compatibility features
! are liable to disappear in future versions of G++._  They should be
! considered deprecated.  *Note Deprecated Features::.
  
! 'For scope'
       If a variable is declared at for scope, it used to remain in scope
!      until the end of the scope that contained the for statement (rather
!      than just within the for scope).  G++ retains this, but issues a
!      warning, if such a variable is accessed outside the for scope.
  
! 'Implicit C language'
!      Old C system header files did not contain an 'extern "C" {...}'
       scope to set the language.  On such systems, all header files are
       implicitly scoped inside a C language scope.  Also, an empty
!      prototype '()' is treated as an unspecified number of arguments,
       rather than no arguments, as C++ demands.
  
  
*************** File: gcc.info,  Node: Objective-C,  Nex
*** 45803,45811 ****
  8 GNU Objective-C Features
  **************************
  
! This document is meant to describe some of the GNU Objective-C
! features.  It is not intended to teach you Objective-C.  There are
! several resources on the Internet that present the language.
  
  * Menu:
  
--- 45396,45404 ----
  8 GNU Objective-C Features
  **************************
  
! This document is meant to describe some of the GNU Objective-C features.
! It is not intended to teach you Objective-C. There are several resources
! on the Internet that present the language.
  
  * Menu:
  
*************** File: gcc.info,  Node: GNU Objective-C r
*** 45829,45836 ****
  This section is specific for the GNU Objective-C runtime.  If you are
  using a different runtime, you can skip it.
  
!  The GNU Objective-C runtime provides an API that allows you to
! interact with the Objective-C runtime system, querying the live runtime
  structures and even manipulating them.  This allows you for example to
  inspect and navigate classes, methods and protocols; to define new
  classes or new methods, and even to modify existing classes or
--- 45422,45429 ----
  This section is specific for the GNU Objective-C runtime.  If you are
  using a different runtime, you can skip it.
  
!  The GNU Objective-C runtime provides an API that allows you to interact
! with the Objective-C runtime system, querying the live runtime
  structures and even manipulating them.  This allows you for example to
  inspect and navigate classes, methods and protocols; to define new
  classes or new methods, and even to modify existing classes or
*************** provided by the "Objective-C 2.0" Apple/
*** 45857,45899 ****
  API is documented in the public header files of the GNU Objective-C
  runtime:
  
!    * `objc/objc.h': this is the basic Objective-C header file, defining
!      the basic Objective-C types such as `id', `Class' and `BOOL'.  You
       have to include this header to do almost anything with Objective-C.
  
!    * `objc/runtime.h': this header declares most of the public runtime
       API functions allowing you to inspect and manipulate the
       Objective-C runtime data structures.  These functions are fairly
       standardized across Objective-C runtimes and are almost identical
       to the Apple/NeXT Objective-C runtime ones.  It does not declare
       functions in some specialized areas (constructing and forwarding
       message invocations, threading) which are in the other headers
!      below.  You have to include `objc/objc.h' and `objc/runtime.h' to
!      use any of the functions, such as `class_getName()', declared in
!      `objc/runtime.h'.
  
!    * `objc/message.h': this header declares public functions used to
       construct, deconstruct and forward message invocations.  Because
       messaging is done in quite a different way on different runtimes,
       functions in this header are specific to the GNU Objective-C
       runtime implementation.
  
!    * `objc/objc-exception.h': this header declares some public
!      functions related to Objective-C exceptions.  For example
!      functions in this header allow you to throw an Objective-C
!      exception from plain C/C++ code.
  
!    * `objc/objc-sync.h': this header declares some public functions
!      related to the Objective-C `@synchronized()' syntax, allowing you
!      to emulate an Objective-C `@synchronized()' block in plain C/C++
       code.
  
!    * `objc/thr.h': this header declares a public runtime API threading
       layer that is only provided by the GNU Objective-C runtime.  It
!      declares functions such as `objc_mutex_lock()', which provide a
       platform-independent set of threading functions.
  
- 
   The header files contain detailed documentation for each function in
  the GNU Objective-C runtime API.
  
--- 45450,45491 ----
  API is documented in the public header files of the GNU Objective-C
  runtime:
  
!    * 'objc/objc.h': this is the basic Objective-C header file, defining
!      the basic Objective-C types such as 'id', 'Class' and 'BOOL'.  You
       have to include this header to do almost anything with Objective-C.
  
!    * 'objc/runtime.h': this header declares most of the public runtime
       API functions allowing you to inspect and manipulate the
       Objective-C runtime data structures.  These functions are fairly
       standardized across Objective-C runtimes and are almost identical
       to the Apple/NeXT Objective-C runtime ones.  It does not declare
       functions in some specialized areas (constructing and forwarding
       message invocations, threading) which are in the other headers
!      below.  You have to include 'objc/objc.h' and 'objc/runtime.h' to
!      use any of the functions, such as 'class_getName()', declared in
!      'objc/runtime.h'.
  
!    * 'objc/message.h': this header declares public functions used to
       construct, deconstruct and forward message invocations.  Because
       messaging is done in quite a different way on different runtimes,
       functions in this header are specific to the GNU Objective-C
       runtime implementation.
  
!    * 'objc/objc-exception.h': this header declares some public functions
!      related to Objective-C exceptions.  For example functions in this
!      header allow you to throw an Objective-C exception from plain C/C++
!      code.
  
!    * 'objc/objc-sync.h': this header declares some public functions
!      related to the Objective-C '@synchronized()' syntax, allowing you
!      to emulate an Objective-C '@synchronized()' block in plain C/C++
       code.
  
!    * 'objc/thr.h': this header declares a public runtime API threading
       layer that is only provided by the GNU Objective-C runtime.  It
!      declares functions such as 'objc_mutex_lock()', which provide a
       platform-independent set of threading functions.
  
   The header files contain detailed documentation for each function in
  the GNU Objective-C runtime API.
  
*************** File: gcc.info,  Node: Traditional GNU O
*** 45904,45915 ****
  ---------------------------------------------
  
  The GNU Objective-C runtime used to provide a different API, which we
! call the "traditional" GNU Objective-C runtime API.  Functions
! belonging to this API are easy to recognize because they use a
! different naming convention, such as `class_get_super_class()'
! (traditional API) instead of `class_getSuperclass()' (modern API).
! Software using this API includes the file `objc/objc-api.h' where it is
! declared.
  
   Starting with GCC 4.7.0, the traditional GNU runtime API is no longer
  available.
--- 45496,45506 ----
  ---------------------------------------------
  
  The GNU Objective-C runtime used to provide a different API, which we
! call the "traditional" GNU Objective-C runtime API. Functions belonging
! to this API are easy to recognize because they use a different naming
! convention, such as 'class_get_super_class()' (traditional API) instead
! of 'class_getSuperclass()' (modern API). Software using this API
! includes the file 'objc/objc-api.h' where it is declared.
  
   Starting with GCC 4.7.0, the traditional GNU runtime API is no longer
  available.
*************** available.
*** 45917,45942 ****
  
  File: gcc.info,  Node: Executing code before main,  Next: Type encoding,  Prev: GNU Objective-C runtime API,  Up: Objective-C
  
! 8.2 `+load': Executing Code before `main'
  =========================================
  
  This section is specific for the GNU Objective-C runtime.  If you are
  using a different runtime, you can skip it.
  
   The GNU Objective-C runtime provides a way that allows you to execute
! code before the execution of the program enters the `main' function.
  The code is executed on a per-class and a per-category basis, through a
! special class method `+load'.
  
   This facility is very useful if you want to initialize global variables
  which can be accessed by the program directly, without sending a message
  to the class first.  The usual way to initialize global variables, in
! the `+initialize' method, might not be useful because `+initialize' is
  only called when the first message is sent to a class object, which in
  some cases could be too late.
  
!  Suppose for example you have a `FileStream' class that declares
! `Stdin', `Stdout' and `Stderr' as global variables, like below:
  
  
       FileStream *Stdin = nil;
--- 45508,45533 ----
  
  File: gcc.info,  Node: Executing code before main,  Next: Type encoding,  Prev: GNU Objective-C runtime API,  Up: Objective-C
  
! 8.2 '+load': Executing Code before 'main'
  =========================================
  
  This section is specific for the GNU Objective-C runtime.  If you are
  using a different runtime, you can skip it.
  
   The GNU Objective-C runtime provides a way that allows you to execute
! code before the execution of the program enters the 'main' function.
  The code is executed on a per-class and a per-category basis, through a
! special class method '+load'.
  
   This facility is very useful if you want to initialize global variables
  which can be accessed by the program directly, without sending a message
  to the class first.  The usual way to initialize global variables, in
! the '+initialize' method, might not be useful because '+initialize' is
  only called when the first message is sent to a class object, which in
  some cases could be too late.
  
!  Suppose for example you have a 'FileStream' class that declares
! 'Stdin', 'Stdout' and 'Stderr' as global variables, like below:
  
  
       FileStream *Stdin = nil;
*************** some cases could be too late.
*** 45955,45970 ****
       /* Other methods here */
       @end
  
-  In this example, the initialization of `Stdin', `Stdout' and `Stderr'
- in `+initialize' occurs too late.  The programmer can send a message to
- one of these objects before the variables are actually initialized,
- thus sending messages to the `nil' object.  The `+initialize' method
- which actually initializes the global variables is not invoked until
- the first message is sent to the class object.  The solution would
- require these variables to be initialized just before entering `main'.
  
!  The correct solution of the above problem is to use the `+load' method
! instead of `+initialize':
  
  
       @implementation FileStream
--- 45546,45562 ----
       /* Other methods here */
       @end
  
  
!  In this example, the initialization of 'Stdin', 'Stdout' and 'Stderr'
! in '+initialize' occurs too late.  The programmer can send a message to
! one of these objects before the variables are actually initialized, thus
! sending messages to the 'nil' object.  The '+initialize' method which
! actually initializes the global variables is not invoked until the first
! message is sent to the class object.  The solution would require these
! variables to be initialized just before entering 'main'.
! 
!  The correct solution of the above problem is to use the '+load' method
! instead of '+initialize':
  
  
       @implementation FileStream
*************** instead of `+initialize':
*** 45979,45992 ****
       /* Other methods here */
       @end
  
!  The `+load' is a method that is not overridden by categories.  If a
! class and a category of it both implement `+load', both methods are
  invoked.  This allows some additional initializations to be performed in
  a category.
  
!  This mechanism is not intended to be a replacement for `+initialize'.
! You should be aware of its limitations when you decide to use it
! instead of `+initialize'.
  
  * Menu:
  
--- 45571,45585 ----
       /* Other methods here */
       @end
  
! 
!  The '+load' is a method that is not overridden by categories.  If a
! class and a category of it both implement '+load', both methods are
  invoked.  This allows some additional initializations to be performed in
  a category.
  
!  This mechanism is not intended to be a replacement for '+initialize'.
! You should be aware of its limitations when you decide to use it instead
! of '+initialize'.
  
  * Menu:
  
*************** instead of `+initialize'.
*** 45995,46009 ****
  
  File: gcc.info,  Node: What you can and what you cannot do in +load,  Up: Executing code before main
  
! 8.2.1 What You Can and Cannot Do in `+load'
  -------------------------------------------
  
! `+load' is to be used only as a last resort.  Because it is executed
  very early, most of the Objective-C runtime machinery will not be ready
! when `+load' is executed; hence `+load' works best for executing C code
  that is independent on the Objective-C runtime.
  
!  The `+load' implementation in the GNU runtime guarantees you the
  following things:
  
     * you can write whatever C code you like;
--- 45588,45602 ----
  
  File: gcc.info,  Node: What you can and what you cannot do in +load,  Up: Executing code before main
  
! 8.2.1 What You Can and Cannot Do in '+load'
  -------------------------------------------
  
! '+load' is to be used only as a last resort.  Because it is executed
  very early, most of the Objective-C runtime machinery will not be ready
! when '+load' is executed; hence '+load' works best for executing C code
  that is independent on the Objective-C runtime.
  
!  The '+load' implementation in the GNU runtime guarantees you the
  following things:
  
     * you can write whatever C code you like;
*************** following things:
*** 46011,46022 ****
     * you can allocate and send messages to objects whose class is
       implemented in the same file;
  
!    * the `+load' implementation of all super classes of a class are
!      executed before the `+load' of that class is executed;
! 
!    * the `+load' implementation of a class is executed before the
!      `+load' implementation of any category.
  
  
   In particular, the following things, even if they can work in a
  particular case, are not guaranteed:
--- 45604,45614 ----
     * you can allocate and send messages to objects whose class is
       implemented in the same file;
  
!    * the '+load' implementation of all super classes of a class are
!      executed before the '+load' of that class is executed;
  
+    * the '+load' implementation of a class is executed before the
+      '+load' implementation of any category.
  
   In particular, the following things, even if they can work in a
  particular case, are not guaranteed:
*************** particular case, are not guaranteed:
*** 46026,46051 ****
     * allocation of or sending messages to objects whose classes have a
       category implemented in the same file;
  
!    * sending messages to Objective-C constant strings (`@"this is a
       constant string"');
  
  
!  You should make no assumptions about receiving `+load' in sibling
! classes when you write `+load' of a class.  The order in which sibling
! classes receive `+load' is not guaranteed.
! 
!  The order in which `+load' and `+initialize' are called could be
  problematic if this matters.  If you don't allocate objects inside
! `+load', it is guaranteed that `+load' is called before `+initialize'.
! If you create an object inside `+load' the `+initialize' method of
! object's class is invoked even if `+load' was not invoked.  Note if you
! explicitly call `+load' on a class, `+initialize' will be called first.
  To avoid possible problems try to implement only one of these methods.
  
!  The `+load' method is also invoked when a bundle is dynamically loaded
  into your running program.  This happens automatically without any
  intervening operation from you.  When you write bundles and you need to
! write `+load' you can safely create and send messages to objects whose
  classes already exist in the running program.  The same restrictions as
  above apply to classes defined in bundle.
  
--- 45618,45642 ----
     * allocation of or sending messages to objects whose classes have a
       category implemented in the same file;
  
!    * sending messages to Objective-C constant strings ('@"this is a
       constant string"');
  
+  You should make no assumptions about receiving '+load' in sibling
+ classes when you write '+load' of a class.  The order in which sibling
+ classes receive '+load' is not guaranteed.
  
!  The order in which '+load' and '+initialize' are called could be
  problematic if this matters.  If you don't allocate objects inside
! '+load', it is guaranteed that '+load' is called before '+initialize'.
! If you create an object inside '+load' the '+initialize' method of
! object's class is invoked even if '+load' was not invoked.  Note if you
! explicitly call '+load' on a class, '+initialize' will be called first.
  To avoid possible problems try to implement only one of these methods.
  
!  The '+load' method is also invoked when a bundle is dynamically loaded
  into your running program.  This happens automatically without any
  intervening operation from you.  When you write bundles and you need to
! write '+load' you can safely create and send messages to objects whose
  classes already exist in the running program.  The same restrictions as
  above apply to classes defined in bundle.
  
*************** File: gcc.info,  Node: Type encoding,  N
*** 46055,46063 ****
  8.3 Type Encoding
  =================
  
! This is an advanced section.  Type encodings are used extensively by
! the compiler and by the runtime, but you generally do not need to know
! about them to use Objective-C.
  
   The Objective-C compiler generates type encodings for all the types.
  These type encodings are used at runtime to find out information about
--- 45646,45654 ----
  8.3 Type Encoding
  =================
  
! This is an advanced section.  Type encodings are used extensively by the
! compiler and by the runtime, but you generally do not need to know about
! them to use Objective-C.
  
   The Objective-C compiler generates type encodings for all the types.
  These type encodings are used at runtime to find out information about
*************** selectors and methods and about objects
*** 46065,46098 ****
  
   The types are encoded in the following way:
  
! `_Bool'            `B'
! `char'             `c'
! `unsigned char'    `C'
! `short'            `s'
! `unsigned short'   `S'
! `int'              `i'
! `unsigned int'     `I'
! `long'             `l'
! `unsigned long'    `L'
! `long long'        `q'
! `unsigned long     `Q'
! long'              
! `float'            `f'
! `double'           `d'
! `long double'      `D'
! `void'             `v'
! `id'               `@'
! `Class'            `#'
! `SEL'              `:'
! `char*'            `*'
! `enum'             an `enum' is encoded exactly as the integer type that
!                    the compiler uses for it, which depends on the
                     enumeration values.  Often the compiler users
!                    `unsigned int', which is then encoded as `I'.
! unknown type       `?'
! Complex types      `j' followed by the inner type.  For example
!                    `_Complex double' is encoded as "jd".
! bit-fields         `b' followed by the starting position of the
                     bit-field, the type of the bit-field and the size of
                     the bit-field (the bit-fields encoding was changed
                     from the NeXT's compiler encoding, see below)
--- 45656,45689 ----
  
   The types are encoded in the following way:
  
! '_Bool'            'B'
! 'char'             'c'
! 'unsigned char'    'C'
! 'short'            's'
! 'unsigned short'   'S'
! 'int'              'i'
! 'unsigned int'     'I'
! 'long'             'l'
! 'unsigned long'    'L'
! 'long long'        'q'
! 'unsigned long     'Q'
! long'
! 'float'            'f'
! 'double'           'd'
! 'long double'      'D'
! 'void'             'v'
! 'id'               '@'
! 'Class'            '#'
! 'SEL'              ':'
! 'char*'            '*'
! 'enum'             an 'enum' is encoded exactly as the integer type
!                    that the compiler uses for it, which depends on the
                     enumeration values.  Often the compiler users
!                    'unsigned int', which is then encoded as 'I'.
! unknown type       '?'
! Complex types      'j' followed by the inner type.  For example
!                    '_Complex double' is encoded as "jd".
! bit-fields         'b' followed by the starting position of the
                     bit-field, the type of the bit-field and the size of
                     the bit-field (the bit-fields encoding was changed
                     from the NeXT's compiler encoding, see below)
*************** bit closest to the beginning of the stru
*** 46113,46189 ****
  
   The non-atomic types are encoded as follows:
  
! pointers       `^' followed by the pointed type.
! arrays         `[' followed by the number of elements in the array
!                followed by the type of the elements followed by `]'
! structures     `{' followed by the name of the structure (or `?' if the
!                structure is unnamed), the `=' sign, the type of the
!                members and by `}'
! unions         `(' followed by the name of the structure (or `?' if the
!                union is unnamed), the `=' sign, the type of the members
!                followed by `)'
! vectors        `![' followed by the vector_size (the number of bytes
                 composing the vector) followed by a comma, followed by
                 the alignment (in bytes) of the vector, followed by the
!                type of the elements followed by `]'
  
   Here are some types and their encodings, as they are generated by the
  compiler on an i386 machine:
  
  
  Objective-C type   Compiler encoding
!      int a[10];    `[10i]'
!      struct {      `{?=i[3f]b128i3b131i2c}'
!        int i;      
!        float f[3]; 
!        int a:3;    
!        int b:2;    
!        char c;     
!      }             
!      int a __attribute__ ((vector_size (16)));`![16,16i]' (alignment would depend on the machine)
  
  
!  In addition to the types the compiler also encodes the type
! specifiers.  The table below describes the encoding of the current
! Objective-C type specifiers:
  
  
  Specifier          Encoding
! `const'            `r'
! `in'               `n'
! `inout'            `N'
! `out'              `o'
! `bycopy'           `O'
! `byref'            `R'
! `oneway'           `V'
  
  
   The type specifiers are encoded just before the type.  Unlike types
  however, the type specifiers are only encoded when they appear in method
  argument types.
  
!  Note how `const' interacts with pointers:
  
  
  Objective-C type   Compiler encoding
!      const int     `ri'
!      const int*    `^ri'
!      int *const    `r^i'
  
  
!  `const int*' is a pointer to a `const int', and so is encoded as
! `^ri'.  `int* const', instead, is a `const' pointer to an `int', and so
! is encoded as `r^i'.
  
!  Finally, there is a complication when encoding `const char *' versus
! `char * const'.  Because `char *' is encoded as `*' and not as `^c',
! there is no way to express the fact that `r' applies to the pointer or
  to the pointee.
  
!  Hence, it is assumed as a convention that `r*' means `const char *'
  (since it is what is most often meant), and there is no way to encode
! `char *const'.  `char *const' would simply be encoded as `*', and the
! `const' is lost.
  
  * Menu:
  
--- 45704,45780 ----
  
   The non-atomic types are encoded as follows:
  
! pointers       '^' followed by the pointed type.
! arrays         '[' followed by the number of elements in the array
!                followed by the type of the elements followed by ']'
! structures     '{' followed by the name of the structure (or '?' if the
!                structure is unnamed), the '=' sign, the type of the
!                members and by '}'
! unions         '(' followed by the name of the structure (or '?' if the
!                union is unnamed), the '=' sign, the type of the members
!                followed by ')'
! vectors        '![' followed by the vector_size (the number of bytes
                 composing the vector) followed by a comma, followed by
                 the alignment (in bytes) of the vector, followed by the
!                type of the elements followed by ']'
  
   Here are some types and their encodings, as they are generated by the
  compiler on an i386 machine:
  
  
  Objective-C type   Compiler encoding
!      int a[10];    '[10i]'
!      struct {      '{?=i[3f]b128i3b131i2c}'
!        int i;
!        float f[3];
!        int a:3;
!        int b:2;
!        char c;
!      }
!      int a __attribute__ ((vector_size (16)));'![16,16i]' (alignment would depend on the machine)
  
  
!  In addition to the types the compiler also encodes the type specifiers.
! The table below describes the encoding of the current Objective-C type
! specifiers:
  
  
  Specifier          Encoding
! 'const'            'r'
! 'in'               'n'
! 'inout'            'N'
! 'out'              'o'
! 'bycopy'           'O'
! 'byref'            'R'
! 'oneway'           'V'
  
  
   The type specifiers are encoded just before the type.  Unlike types
  however, the type specifiers are only encoded when they appear in method
  argument types.
  
!  Note how 'const' interacts with pointers:
  
  
  Objective-C type   Compiler encoding
!      const int     'ri'
!      const int*    '^ri'
!      int *const    'r^i'
  
  
!  'const int*' is a pointer to a 'const int', and so is encoded as '^ri'.
! 'int* const', instead, is a 'const' pointer to an 'int', and so is
! encoded as 'r^i'.
  
!  Finally, there is a complication when encoding 'const char *' versus
! 'char * const'.  Because 'char *' is encoded as '*' and not as '^c',
! there is no way to express the fact that 'r' applies to the pointer or
  to the pointee.
  
!  Hence, it is assumed as a convention that 'r*' means 'const char *'
  (since it is what is most often meant), and there is no way to encode
! 'char *const'.  'char *const' would simply be encoded as '*', and the
! 'const' is lost.
  
  * Menu:
  
*************** File: gcc.info,  Node: Legacy type encod
*** 46199,46207 ****
  
  Unfortunately, historically GCC used to have a number of bugs in its
  encoding code.  The NeXT runtime expects GCC to emit type encodings in
! this historical format (compatible with GCC-3.3), so when using the
! NeXT runtime, GCC will introduce on purpose a number of incorrect
! encodings:
  
     * the read-only qualifier of the pointee gets emitted before the '^'.
       The read-only qualifier of the pointer itself gets ignored, unless
--- 45790,45797 ----
  
  Unfortunately, historically GCC used to have a number of bugs in its
  encoding code.  The NeXT runtime expects GCC to emit type encodings in
! this historical format (compatible with GCC-3.3), so when using the NeXT
! runtime, GCC will introduce on purpose a number of incorrect encodings:
  
     * the read-only qualifier of the pointee gets emitted before the '^'.
       The read-only qualifier of the pointer itself gets ignored, unless
*************** encodings:
*** 46209,46238 ****
       type.
  
     * 32-bit longs are encoded as 'l' or 'L', but not always.  For
!      typedefs, the compiler uses 'i' or 'I' instead if encoding a
!      struct field or a pointer.
  
!    * `enum's are always encoded as 'i' (int) even if they are actually
       unsigned or long.
  
- 
   In addition to that, the NeXT runtime uses a different encoding for
! bitfields.  It encodes them as `b' followed by the size, without a bit
  offset or the underlying field type.
  
  
  File: gcc.info,  Node: @encode,  Next: Method signatures,  Prev: Legacy type encoding,  Up: Type encoding
  
! 8.3.2 `@encode'
  ---------------
  
! GNU Objective-C supports the `@encode' syntax that allows you to create
! a type encoding from a C/Objective-C type.  For example, `@encode(int)'
! is compiled by the compiler into `"i"'.
  
!  `@encode' does not support type qualifiers other than `const'.  For
! example, `@encode(const char*)' is valid and is compiled into `"r*"',
! while `@encode(bycopy char *)' is invalid and will cause a compilation
  error.
  
  
--- 45799,45827 ----
       type.
  
     * 32-bit longs are encoded as 'l' or 'L', but not always.  For
!      typedefs, the compiler uses 'i' or 'I' instead if encoding a struct
!      field or a pointer.
  
!    * 'enum's are always encoded as 'i' (int) even if they are actually
       unsigned or long.
  
   In addition to that, the NeXT runtime uses a different encoding for
! bitfields.  It encodes them as 'b' followed by the size, without a bit
  offset or the underlying field type.
  
  
  File: gcc.info,  Node: @encode,  Next: Method signatures,  Prev: Legacy type encoding,  Up: Type encoding
  
! 8.3.2 '@encode'
  ---------------
  
! GNU Objective-C supports the '@encode' syntax that allows you to create
! a type encoding from a C/Objective-C type.  For example, '@encode(int)'
! is compiled by the compiler into '"i"'.
  
!  '@encode' does not support type qualifiers other than 'const'.  For
! example, '@encode(const char*)' is valid and is compiled into '"r*"',
! while '@encode(bycopy char *)' is invalid and will cause a compilation
  error.
  
  
*************** File: gcc.info,  Node: Method signatures
*** 46242,46248 ****
  -----------------------
  
  This section documents the encoding of method types, which is rarely
! needed to use Objective-C.  You should skip it at a first reading; the
  runtime provides functions that will work on methods and can walk
  through the list of parameters and interpret them for you.  These
  functions are part of the public "API" and are the preferred way to
--- 45831,45837 ----
  -----------------------
  
  This section documents the encoding of method types, which is rarely
! needed to use Objective-C. You should skip it at a first reading; the
  runtime provides functions that will work on methods and can walk
  through the list of parameters and interpret them for you.  These
  functions are part of the public "API" and are the preferred way to
*************** arguments.
*** 46259,46285 ****
   The "signature" is a null-terminated string, composed of the following:
  
     * The return type, including type qualifiers.  For example, a method
!      returning `int' would have `i' here.
  
     * The total size (in bytes) required to pass all the parameters.
!      This includes the two hidden parameters (the object `self' and the
!      method selector `_cmd').
  
     * Each argument, with the type encoding, followed by the offset (in
       bytes) of the argument in the list of parameters.
  
! 
!  For example, a method with no arguments and returning `int' would have
! the signature `i8@0:4' if the size of a pointer is 4.  The signature is
! interpreted as follows: the `i' is the return type (an `int'), the `8'
  is the total size of the parameters in bytes (two pointers each of size
! 4), the `@0' is the first parameter (an object at byte offset `0') and
! `:4' is the second parameter (a `SEL' at byte offset `4').
  
   You can easily find more examples by running the "strings" program on
! an Objective-C object file compiled by GCC.  You'll see a lot of
! strings that look very much like `i8@0:4'.  They are signatures of
! Objective-C methods.
  
  
  File: gcc.info,  Node: Garbage Collection,  Next: Constant string objects,  Prev: Type encoding,  Up: Objective-C
--- 45848,45873 ----
   The "signature" is a null-terminated string, composed of the following:
  
     * The return type, including type qualifiers.  For example, a method
!      returning 'int' would have 'i' here.
  
     * The total size (in bytes) required to pass all the parameters.
!      This includes the two hidden parameters (the object 'self' and the
!      method selector '_cmd').
  
     * Each argument, with the type encoding, followed by the offset (in
       bytes) of the argument in the list of parameters.
  
!  For example, a method with no arguments and returning 'int' would have
! the signature 'i8@0:4' if the size of a pointer is 4.  The signature is
! interpreted as follows: the 'i' is the return type (an 'int'), the '8'
  is the total size of the parameters in bytes (two pointers each of size
! 4), the '@0' is the first parameter (an object at byte offset '0') and
! ':4' is the second parameter (a 'SEL' at byte offset '4').
  
   You can easily find more examples by running the "strings" program on
! an Objective-C object file compiled by GCC. You'll see a lot of strings
! that look very much like 'i8@0:4'.  They are signatures of Objective-C
! methods.
  
  
  File: gcc.info,  Node: Garbage Collection,  Next: Constant string objects,  Prev: Type encoding,  Up: Objective-C
*************** using a powerful conservative garbage co
*** 46295,46304 ****
  Boehm-Demers-Weiser conservative garbage collector.
  
   To enable the support for it you have to configure the compiler using
! an additional argument, `--enable-objc-gc'.  This will build the
  boehm-gc library, and build an additional runtime library which has
  several enhancements to support the garbage collector.  The new library
! has a new name, `libobjc_gc.a' to not conflict with the
  non-garbage-collected library.
  
   When the garbage collector is used, the objects are allocated using the
--- 45883,45892 ----
  Boehm-Demers-Weiser conservative garbage collector.
  
   To enable the support for it you have to configure the compiler using
! an additional argument, '--enable-objc-gc'.  This will build the
  boehm-gc library, and build an additional runtime library which has
  several enhancements to support the garbage collector.  The new library
! has a new name, 'libobjc_gc.a' to not conflict with the
  non-garbage-collected library.
  
   When the garbage collector is used, the objects are allocated using the
*************** on where pointers are located inside obj
*** 46308,46321 ****
  computed once per class, immediately after the class has been
  initialized.
  
!  There is a new runtime function `class_ivar_set_gcinvisible()' which
  can be used to declare a so-called "weak pointer" reference.  Such a
  pointer is basically hidden for the garbage collector; this can be
  useful in certain situations, especially when you want to keep track of
  the allocated objects, yet allow them to be collected.  This kind of
  pointers can only be members of objects, you cannot declare a global
  pointer as a weak reference.  Every type which is a pointer type can be
! declared a weak pointer, including `id', `Class' and `SEL'.
  
   Here is an example of how to use this feature.  Suppose you want to
  implement a class whose instances hold a weak pointer reference; the
--- 45896,45909 ----
  computed once per class, immediately after the class has been
  initialized.
  
!  There is a new runtime function 'class_ivar_set_gcinvisible()' which
  can be used to declare a so-called "weak pointer" reference.  Such a
  pointer is basically hidden for the garbage collector; this can be
  useful in certain situations, especially when you want to keep track of
  the allocated objects, yet allow them to be collected.  This kind of
  pointers can only be members of objects, you cannot declare a global
  pointer as a weak reference.  Every type which is a pointer type can be
! declared a weak pointer, including 'id', 'Class' and 'SEL'.
  
   Here is an example of how to use this feature.  Suppose you want to
  implement a class whose instances hold a weak pointer reference; the
*************** following class does this:
*** 46353,46360 ****
  
       @end
  
   Weak pointers are supported through a new type character specifier
! represented by the `!' character.  The `class_ivar_set_gcinvisible()'
  function adds or removes this specifier to the string type description
  of the instance variable named as argument.
  
--- 45941,45949 ----
  
       @end
  
+ 
   Weak pointers are supported through a new type character specifier
! represented by the '!' character.  The 'class_ivar_set_gcinvisible()'
  function adds or removes this specifier to the string type description
  of the instance variable named as argument.
  
*************** File: gcc.info,  Node: Constant string o
*** 46366,46385 ****
  
  GNU Objective-C provides constant string objects that are generated
  directly by the compiler.  You declare a constant string object by
! prefixing a C constant string with the character `@':
  
         id myString = @"this is a constant string object";
  
   The constant string objects are by default instances of the
! `NXConstantString' class which is provided by the GNU Objective-C
  runtime.  To get the definition of this class you must include the
! `objc/NXConstStr.h' header file.
  
   User defined libraries may want to implement their own constant string
  class.  To be able to support them, the GNU Objective-C compiler
  provides a new command line options
! `-fconstant-string-class=CLASS-NAME'.  The provided class should adhere
! to a strict structure, the same as `NXConstantString''s structure:
  
  
       @interface MyConstantStringClass
--- 45955,45974 ----
  
  GNU Objective-C provides constant string objects that are generated
  directly by the compiler.  You declare a constant string object by
! prefixing a C constant string with the character '@':
  
         id myString = @"this is a constant string object";
  
   The constant string objects are by default instances of the
! 'NXConstantString' class which is provided by the GNU Objective-C
  runtime.  To get the definition of this class you must include the
! 'objc/NXConstStr.h' header file.
  
   User defined libraries may want to implement their own constant string
  class.  To be able to support them, the GNU Objective-C compiler
  provides a new command line options
! '-fconstant-string-class=CLASS-NAME'.  The provided class should adhere
! to a strict structure, the same as 'NXConstantString''s structure:
  
  
       @interface MyConstantStringClass
*************** to a strict structure, the same as `NXCo
*** 46390,46441 ****
       }
       @end
  
!  `NXConstantString' inherits from `Object'; user class libraries may
  choose to inherit the customized constant string class from a different
! class than `Object'.  There is no requirement in the methods the
! constant string class has to implement, but the final ivar layout of
! the class must be the compatible with the given structure.
  
   When the compiler creates the statically allocated constant string
! object, the `c_string' field will be filled by the compiler with the
! string; the `length' field will be filled by the compiler with the
! string length; the `isa' pointer will be filled with `NULL' by the
  compiler, and it will later be fixed up automatically at runtime by the
  GNU Objective-C runtime library to point to the class which was set by
! the `-fconstant-string-class' option when the object file is loaded (if
! you wonder how it works behind the scenes, the name of the class to
! use, and the list of static objects to fixup, are stored by the
! compiler in the object file in a place where the GNU runtime library
! will find them at runtime).
  
!  As a result, when a file is compiled with the
! `-fconstant-string-class' option, all the constant string objects will
! be instances of the class specified as argument to this option.  It is
! possible to have multiple compilation units referring to different
! constant string classes, neither the compiler nor the linker impose any
! restrictions in doing this.
  
  
  File: gcc.info,  Node: compatibility_alias,  Next: Exceptions,  Prev: Constant string objects,  Up: Objective-C
  
! 8.6 `compatibility_alias'
  =========================
  
! The keyword `@compatibility_alias' allows you to define a class name as
  equivalent to another class name.  For example:
  
       @compatibility_alias WOApplication GSWApplication;
  
!  tells the compiler that each time it encounters `WOApplication' as a
! class name, it should replace it with `GSWApplication' (that is,
! `WOApplication' is just an alias for `GSWApplication').
  
   There are some constraints on how this can be used--
  
!    * `WOApplication' (the alias) must not be an existing class;
! 
!    * `GSWApplication' (the real class) must be an existing class.
  
  
  
  File: gcc.info,  Node: Exceptions,  Next: Synchronization,  Prev: compatibility_alias,  Up: Objective-C
--- 45979,46030 ----
       }
       @end
  
! 
!  'NXConstantString' inherits from 'Object'; user class libraries may
  choose to inherit the customized constant string class from a different
! class than 'Object'.  There is no requirement in the methods the
! constant string class has to implement, but the final ivar layout of the
! class must be the compatible with the given structure.
  
   When the compiler creates the statically allocated constant string
! object, the 'c_string' field will be filled by the compiler with the
! string; the 'length' field will be filled by the compiler with the
! string length; the 'isa' pointer will be filled with 'NULL' by the
  compiler, and it will later be fixed up automatically at runtime by the
  GNU Objective-C runtime library to point to the class which was set by
! the '-fconstant-string-class' option when the object file is loaded (if
! you wonder how it works behind the scenes, the name of the class to use,
! and the list of static objects to fixup, are stored by the compiler in
! the object file in a place where the GNU runtime library will find them
! at runtime).
  
!  As a result, when a file is compiled with the '-fconstant-string-class'
! option, all the constant string objects will be instances of the class
! specified as argument to this option.  It is possible to have multiple
! compilation units referring to different constant string classes,
! neither the compiler nor the linker impose any restrictions in doing
! this.
  
  
  File: gcc.info,  Node: compatibility_alias,  Next: Exceptions,  Prev: Constant string objects,  Up: Objective-C
  
! 8.6 'compatibility_alias'
  =========================
  
! The keyword '@compatibility_alias' allows you to define a class name as
  equivalent to another class name.  For example:
  
       @compatibility_alias WOApplication GSWApplication;
  
!  tells the compiler that each time it encounters 'WOApplication' as a
! class name, it should replace it with 'GSWApplication' (that is,
! 'WOApplication' is just an alias for 'GSWApplication').
  
   There are some constraints on how this can be used--
  
!    * 'WOApplication' (the alias) must not be an existing class;
  
+    * 'GSWApplication' (the real class) must be an existing class.
  
  
  File: gcc.info,  Node: Exceptions,  Next: Synchronization,  Prev: compatibility_alias,  Up: Objective-C
*************** in the following example:
*** 46470,46515 ****
           ...
         }
  
!  The `@throw' statement may appear anywhere in an Objective-C or
! Objective-C++ program; when used inside of a `@catch' block, the
! `@throw' may appear without an argument (as shown above), in which case
! the object caught by the `@catch' will be rethrown.
  
   Note that only (pointers to) Objective-C objects may be thrown and
  caught using this scheme.  When an object is thrown, it will be caught
! by the nearest `@catch' clause capable of handling objects of that
! type, analogously to how `catch' blocks work in C++ and Java.  A
! `@catch(id ...)' clause (as shown above) may also be provided to catch
! any and all Objective-C exceptions not caught by previous `@catch'
! clauses (if any).
  
!  The `@finally' clause, if present, will be executed upon exit from the
! immediately preceding `@try ... @catch' section.  This will happen
  regardless of whether any exceptions are thrown, caught or rethrown
! inside the `@try ... @catch' section, analogously to the behavior of
! the `finally' clause in Java.
  
   There are several caveats to using the new exception mechanism:
  
!    * The `-fobjc-exceptions' command line option must be used when
       compiling Objective-C files that use exceptions.
  
     * With the GNU runtime, exceptions are always implemented as "native"
!      exceptions and it is recommended that the `-fexceptions' and
!      `-shared-libgcc' options are used when linking.
  
     * With the NeXT runtime, although currently designed to be binary
!      compatible with `NS_HANDLER'-style idioms provided by the
!      `NSException' class, the new exceptions can only be used on Mac OS
       X 10.3 (Panther) and later systems, due to additional functionality
       needed in the NeXT Objective-C runtime.
  
     * As mentioned above, the new exceptions do not support handling
!      types other than Objective-C objects.   Furthermore, when used from
       Objective-C++, the Objective-C exception model does not
       interoperate with C++ exceptions at this time.  This means you
!      cannot `@throw' an exception from Objective-C and `catch' it in
!      C++, or vice versa (i.e., `throw ... @catch').
  
  
  File: gcc.info,  Node: Synchronization,  Next: Fast enumeration,  Prev: Exceptions,  Up: Objective-C
--- 46059,46103 ----
           ...
         }
  
!  The '@throw' statement may appear anywhere in an Objective-C or
! Objective-C++ program; when used inside of a '@catch' block, the
! '@throw' may appear without an argument (as shown above), in which case
! the object caught by the '@catch' will be rethrown.
  
   Note that only (pointers to) Objective-C objects may be thrown and
  caught using this scheme.  When an object is thrown, it will be caught
! by the nearest '@catch' clause capable of handling objects of that type,
! analogously to how 'catch' blocks work in C++ and Java.  A '@catch(id
! ...)' clause (as shown above) may also be provided to catch any and all
! Objective-C exceptions not caught by previous '@catch' clauses (if any).
  
!  The '@finally' clause, if present, will be executed upon exit from the
! immediately preceding '@try ... @catch' section.  This will happen
  regardless of whether any exceptions are thrown, caught or rethrown
! inside the '@try ... @catch' section, analogously to the behavior of the
! 'finally' clause in Java.
  
   There are several caveats to using the new exception mechanism:
  
!    * The '-fobjc-exceptions' command line option must be used when
       compiling Objective-C files that use exceptions.
  
     * With the GNU runtime, exceptions are always implemented as "native"
!      exceptions and it is recommended that the '-fexceptions' and
!      '-shared-libgcc' options are used when linking.
  
     * With the NeXT runtime, although currently designed to be binary
!      compatible with 'NS_HANDLER'-style idioms provided by the
!      'NSException' class, the new exceptions can only be used on Mac OS
       X 10.3 (Panther) and later systems, due to additional functionality
       needed in the NeXT Objective-C runtime.
  
     * As mentioned above, the new exceptions do not support handling
!      types other than Objective-C objects.  Furthermore, when used from
       Objective-C++, the Objective-C exception model does not
       interoperate with C++ exceptions at this time.  This means you
!      cannot '@throw' an exception from Objective-C and 'catch' it in
!      C++, or vice versa (i.e., 'throw ... @catch').
  
  
  File: gcc.info,  Node: Synchronization,  Next: Fast enumeration,  Prev: Exceptions,  Up: Objective-C
*************** GNU Objective-C provides support for syn
*** 46523,46545 ****
           ...
         }
  
!  Upon entering the `@synchronized' block, a thread of execution shall
! first check whether a lock has been placed on the corresponding `guard'
  object by another thread.  If it has, the current thread shall wait
! until the other thread relinquishes its lock.  Once `guard' becomes
! available, the current thread will place its own lock on it, execute
! the code contained in the `@synchronized' block, and finally relinquish
! the lock (thereby making `guard' available to other threads).
  
!  Unlike Java, Objective-C does not allow for entire methods to be
! marked `@synchronized'.  Note that throwing exceptions out of
! `@synchronized' blocks is allowed, and will cause the guarding object
! to be unlocked properly.
  
   Because of the interactions between synchronization and exception
! handling, you can only use `@synchronized' when compiling with
  exceptions enabled, that is with the command line option
! `-fobjc-exceptions'.
  
  
  File: gcc.info,  Node: Fast enumeration,  Next: Messaging with the GNU Objective-C runtime,  Prev: Synchronization,  Up: Objective-C
--- 46111,46133 ----
           ...
         }
  
!  Upon entering the '@synchronized' block, a thread of execution shall
! first check whether a lock has been placed on the corresponding 'guard'
  object by another thread.  If it has, the current thread shall wait
! until the other thread relinquishes its lock.  Once 'guard' becomes
! available, the current thread will place its own lock on it, execute the
! code contained in the '@synchronized' block, and finally relinquish the
! lock (thereby making 'guard' available to other threads).
  
!  Unlike Java, Objective-C does not allow for entire methods to be marked
! '@synchronized'.  Note that throwing exceptions out of '@synchronized'
! blocks is allowed, and will cause the guarding object to be unlocked
! properly.
  
   Because of the interactions between synchronization and exception
! handling, you can only use '@synchronized' when compiling with
  exceptions enabled, that is with the command line option
! '-fobjc-exceptions'.
  
  
  File: gcc.info,  Node: Fast enumeration,  Next: Messaging with the GNU Objective-C runtime,  Prev: Synchronization,  Up: Objective-C
*************** GNU Objective-C provides support for the
*** 46570,46588 ****
           /* Do something with 'object' */
         }
  
!  `array' needs to be an Objective-C object (usually a collection
! object, for example an array, a dictionary or a set) which implements
! the "Fast Enumeration Protocol" (see below).  If you are using a
! Foundation library such as GNUstep Base or Apple Cocoa Foundation, all
! collection objects in the library implement this protocol and can be
! used in this way.
  
!  The code above would iterate over all objects in `array'.  For each of
! them, it assigns it to `object', then executes the `Do something with
  'object'' statements.
  
   Here is a fully worked-out example using a Foundation library (which
! provides the implementation of `NSArray', `NSString' and `NSLog'):
  
         NSArray *array = [NSArray arrayWithObjects: @"1", @"2", @"3", nil];
         NSString *object;
--- 46158,46176 ----
           /* Do something with 'object' */
         }
  
!  'array' needs to be an Objective-C object (usually a collection object,
! for example an array, a dictionary or a set) which implements the "Fast
! Enumeration Protocol" (see below).  If you are using a Foundation
! library such as GNUstep Base or Apple Cocoa Foundation, all collection
! objects in the library implement this protocol and can be used in this
! way.
  
!  The code above would iterate over all objects in 'array'.  For each of
! them, it assigns it to 'object', then executes the 'Do something with
  'object'' statements.
  
   Here is a fully worked-out example using a Foundation library (which
! provides the implementation of 'NSArray', 'NSString' and 'NSLog'):
  
         NSArray *array = [NSArray arrayWithObjects: @"1", @"2", @"3", nil];
         NSString *object;
*************** A c99-like declaration syntax is also al
*** 46619,46626 ****
  
   but can save some typing.
  
!  Note that the option `-std=c99' is not required to allow this syntax
! in Objective-C.
  
  
  File: gcc.info,  Node: Fast enumeration details,  Next: Fast enumeration protocol,  Prev: c99-like fast enumeration syntax,  Up: Fast enumeration
--- 46207,46214 ----
  
   but can save some typing.
  
!  Note that the option '-std=c99' is not required to allow this syntax in
! Objective-C.
  
  
  File: gcc.info,  Node: Fast enumeration details,  Next: Fast enumeration protocol,  Prev: c99-like fast enumeration syntax,  Up: Fast enumeration
*************** the code
*** 46638,46646 ****
  
   here is what happens when you run it:
  
!    * `COLLECTION EXPRESSION' is evaluated exactly once and the result
!      is used as the collection object to iterate over.  This means it
!      is safe to write code such as `for (object in [NSDictionary
       keyEnumerator]) ...'.
  
     * the iteration is implemented by the compiler by repeatedly getting
--- 46226,46234 ----
  
   here is what happens when you run it:
  
!    * 'COLLECTION EXPRESSION' is evaluated exactly once and the result is
!      used as the collection object to iterate over.  This means it is
!      safe to write code such as 'for (object in [NSDictionary
       keyEnumerator]) ...'.
  
     * the iteration is implemented by the compiler by repeatedly getting
*************** the code
*** 46650,46682 ****
       objects are retrieved one by one (hence the name "fast
       enumeration").
  
!    * if there are no objects in the collection, then `OBJECT
!      EXPRESSION' is set to `nil' and the loop immediately terminates.
  
     * if there are objects in the collection, then for each object in the
!      collection (in the order they are returned) `OBJECT EXPRESSION' is
!      set to the object, then `STATEMENTS' are executed.
  
!    * `STATEMENTS' can contain `break' and `continue' commands, which
       will abort the iteration or skip to the next loop iteration as
       expected.
  
     * when the iteration ends because there are no more objects to
!      iterate over, `OBJECT EXPRESSION' is set to `nil'.  This allows
!      you to determine whether the iteration finished because a `break'
!      command was used (in which case `OBJECT EXPRESSION' will remain
!      set to the last object that was iterated over) or because it
!      iterated over all the objects (in which case `OBJECT EXPRESSION'
!      will be set to `nil').
  
!    * `STATEMENTS' must not make any changes to the collection object;
!      if they do, it is a hard error and the fast enumeration terminates
!      by invoking `objc_enumerationMutation', a runtime function that
       normally aborts the program but which can be customized by
!      Foundation libraries via `objc_set_mutation_handler' to do
       something different, such as raising an exception.
  
- 
  
  File: gcc.info,  Node: Fast enumeration protocol,  Prev: Fast enumeration details,  Up: Fast enumeration
  
--- 46238,46269 ----
       objects are retrieved one by one (hence the name "fast
       enumeration").
  
!    * if there are no objects in the collection, then 'OBJECT EXPRESSION'
!      is set to 'nil' and the loop immediately terminates.
  
     * if there are objects in the collection, then for each object in the
!      collection (in the order they are returned) 'OBJECT EXPRESSION' is
!      set to the object, then 'STATEMENTS' are executed.
  
!    * 'STATEMENTS' can contain 'break' and 'continue' commands, which
       will abort the iteration or skip to the next loop iteration as
       expected.
  
     * when the iteration ends because there are no more objects to
!      iterate over, 'OBJECT EXPRESSION' is set to 'nil'.  This allows you
!      to determine whether the iteration finished because a 'break'
!      command was used (in which case 'OBJECT EXPRESSION' will remain set
!      to the last object that was iterated over) or because it iterated
!      over all the objects (in which case 'OBJECT EXPRESSION' will be set
!      to 'nil').
  
!    * 'STATEMENTS' must not make any changes to the collection object; if
!      they do, it is a hard error and the fast enumeration terminates by
!      invoking 'objc_enumerationMutation', a runtime function that
       normally aborts the program but which can be customized by
!      Foundation libraries via 'objc_set_mutation_handler' to do
       something different, such as raising an exception.
  
  
  File: gcc.info,  Node: Fast enumeration protocol,  Prev: Fast enumeration details,  Up: Fast enumeration
  
*************** enumeration, you need to have it impleme
*** 46690,46696 ****
                                             objects: (id *)objects
                                               count: (unsigned long)len;
  
!  where `NSFastEnumerationState' must be defined in your code as follows:
  
       typedef struct
       {
--- 46277,46283 ----
                                             objects: (id *)objects
                                               count: (unsigned long)len;
  
!  where 'NSFastEnumerationState' must be defined in your code as follows:
  
       typedef struct
       {
*************** enumeration, you need to have it impleme
*** 46700,46710 ****
         unsigned long extra[5];
       } NSFastEnumerationState;
  
!  If no `NSFastEnumerationState' is defined in your code, the compiler
! will automatically replace `NSFastEnumerationState *' with `struct
  __objcFastEnumerationState *', where that type is silently defined by
  the compiler in an identical way.  This can be confusing and we
! recommend that you define `NSFastEnumerationState' (as shown above)
  instead.
  
   The method is called repeatedly during a fast enumeration to retrieve
--- 46287,46297 ----
         unsigned long extra[5];
       } NSFastEnumerationState;
  
!  If no 'NSFastEnumerationState' is defined in your code, the compiler
! will automatically replace 'NSFastEnumerationState *' with 'struct
  __objcFastEnumerationState *', where that type is silently defined by
  the compiler in an identical way.  This can be confusing and we
! recommend that you define 'NSFastEnumerationState' (as shown above)
  instead.
  
   The method is called repeatedly during a fast enumeration to retrieve
*************** batches of objects.  Each invocation of
*** 46712,46749 ****
  next batch of objects.
  
   The return value of the method is the number of objects in the current
! batch; this should not exceed `len', which is the maximum size of a
  batch as requested by the caller.  The batch itself is returned in the
! `itemsPtr' field of the `NSFastEnumerationState' struct.
  
!  To help with returning the objects, the `objects' array is a C array
! preallocated by the caller (on the stack) of size `len'.  In many cases
! you can put the objects you want to return in that `objects' array,
! then do `itemsPtr = objects'.  But you don't have to; if your
! collection already has the objects to return in some form of C array,
! it could return them from there instead.
  
!  The `state' and `extra' fields of the `NSFastEnumerationState'
  structure allows your collection object to keep track of the state of
! the enumeration.  In a simple array implementation, `state' may keep
! track of the index of the last object that was returned, and `extra'
! may be unused.
  
!  The `mutationsPtr' field of the `NSFastEnumerationState' is used to
! keep track of mutations.  It should point to a number; before working
! on each object, the fast enumeration loop will check that this number
! has not changed.  If it has, a mutation has happened and the fast
! enumeration will abort.  So, `mutationsPtr' could be set to point to
  some sort of version number of your collection, which is increased by
! one every time there is a change (for example when an object is added
! or removed).  Or, if you are content with less strict mutation checks,
! it could point to the number of objects in your collection or some
! other value that can be checked to perform an approximate check that
! the collection has not been mutated.
  
!  Finally, note how we declared the `len' argument and the return value
! to be of type `unsigned long'.  They could also be declared to be of
! type `unsigned int' and everything would still work.
  
  
  File: gcc.info,  Node: Messaging with the GNU Objective-C runtime,  Prev: Fast enumeration,  Up: Objective-C
--- 46299,46336 ----
  next batch of objects.
  
   The return value of the method is the number of objects in the current
! batch; this should not exceed 'len', which is the maximum size of a
  batch as requested by the caller.  The batch itself is returned in the
! 'itemsPtr' field of the 'NSFastEnumerationState' struct.
  
!  To help with returning the objects, the 'objects' array is a C array
! preallocated by the caller (on the stack) of size 'len'.  In many cases
! you can put the objects you want to return in that 'objects' array, then
! do 'itemsPtr = objects'.  But you don't have to; if your collection
! already has the objects to return in some form of C array, it could
! return them from there instead.
  
!  The 'state' and 'extra' fields of the 'NSFastEnumerationState'
  structure allows your collection object to keep track of the state of
! the enumeration.  In a simple array implementation, 'state' may keep
! track of the index of the last object that was returned, and 'extra' may
! be unused.
  
!  The 'mutationsPtr' field of the 'NSFastEnumerationState' is used to
! keep track of mutations.  It should point to a number; before working on
! each object, the fast enumeration loop will check that this number has
! not changed.  If it has, a mutation has happened and the fast
! enumeration will abort.  So, 'mutationsPtr' could be set to point to
  some sort of version number of your collection, which is increased by
! one every time there is a change (for example when an object is added or
! removed).  Or, if you are content with less strict mutation checks, it
! could point to the number of objects in your collection or some other
! value that can be checked to perform an approximate check that the
! collection has not been mutated.
  
!  Finally, note how we declared the 'len' argument and the return value
! to be of type 'unsigned long'.  They could also be declared to be of
! type 'unsigned int' and everything would still work.
  
  
  File: gcc.info,  Node: Messaging with the GNU Objective-C runtime,  Prev: Fast enumeration,  Up: Objective-C
*************** designed to be portable, and so is based
*** 46759,46776 ****
  
   Sending a message in the GNU Objective-C runtime is composed of two
  separate steps.  First, there is a call to the lookup function,
! `objc_msg_lookup ()' (or, in the case of messages to super,
! `objc_msg_lookup_super ()').  This runtime function takes as argument
! the receiver and the selector of the method to be called; it returns
! the `IMP', that is a pointer to the function implementing the method.
! The second step of method invocation consists of casting this pointer
  function to the appropriate function pointer type, and calling the
  function pointed to it with the right arguments.
  
   For example, when the compiler encounters a method invocation such as
! `[object init]', it compiles it into a call to `objc_msg_lookup
! (object, @selector(init))' followed by a cast of the returned value to
! the appropriate function pointer type, and then it calls it.
  
  * Menu:
  
--- 46346,46363 ----
  
   Sending a message in the GNU Objective-C runtime is composed of two
  separate steps.  First, there is a call to the lookup function,
! 'objc_msg_lookup ()' (or, in the case of messages to super,
! 'objc_msg_lookup_super ()').  This runtime function takes as argument
! the receiver and the selector of the method to be called; it returns the
! 'IMP', that is a pointer to the function implementing the method.  The
! second step of method invocation consists of casting this pointer
  function to the appropriate function pointer type, and calling the
  function pointed to it with the right arguments.
  
   For example, when the compiler encounters a method invocation such as
! '[object init]', it compiles it into a call to 'objc_msg_lookup (object,
! @selector(init))' followed by a cast of the returned value to the
! appropriate function pointer type, and then it calls it.
  
  * Menu:
  
*************** File: gcc.info,  Node: Dynamically regis
*** 46783,46791 ****
  8.10.1 Dynamically Registering Methods
  --------------------------------------
  
! If `objc_msg_lookup()' does not find a suitable method implementation,
! because the receiver does not implement the required method, it tries
! to see if the class can dynamically register the method.
  
   To do so, the runtime checks if the class of the receiver implements
  the method
--- 46370,46378 ----
  8.10.1 Dynamically Registering Methods
  --------------------------------------
  
! If 'objc_msg_lookup()' does not find a suitable method implementation,
! because the receiver does not implement the required method, it tries to
! see if the class can dynamically register the method.
  
   To do so, the runtime checks if the class of the receiver implements
  the method
*************** the method
*** 46796,46819 ****
  
       + (BOOL) resolveClassMethod: (SEL)selector;
  
!  in the case of a class method.  If the class implements it, the
! runtime invokes it, passing as argument the selector of the original
! method, and if it returns `YES', the runtime tries the lookup again,
! which could now succeed if a matching method was added dynamically by
! `+resolveInstanceMethod:' or `+resolveClassMethod:'.
  
   This allows classes to dynamically register methods (by adding them to
! the class using `class_addMethod') when they are first called.  To do
! so, a class should implement `+resolveInstanceMethod:' (or, depending
! on the case, `+resolveClassMethod:') and have it recognize the
! selectors of methods that can be registered dynamically at runtime,
! register them, and return `YES'.  It should return `NO' for methods
! that it does not dynamically registered at runtime.
  
!  If `+resolveInstanceMethod:' (or `+resolveClassMethod:') is not
! implemented or returns `NO', the runtime then tries the forwarding hook.
  
!  Support for `+resolveInstanceMethod:' and `resolveClassMethod:' was
  added to the GNU Objective-C runtime in GCC version 4.6.
  
  
--- 46383,46406 ----
  
       + (BOOL) resolveClassMethod: (SEL)selector;
  
!  in the case of a class method.  If the class implements it, the runtime
! invokes it, passing as argument the selector of the original method, and
! if it returns 'YES', the runtime tries the lookup again, which could now
! succeed if a matching method was added dynamically by
! '+resolveInstanceMethod:' or '+resolveClassMethod:'.
  
   This allows classes to dynamically register methods (by adding them to
! the class using 'class_addMethod') when they are first called.  To do
! so, a class should implement '+resolveInstanceMethod:' (or, depending on
! the case, '+resolveClassMethod:') and have it recognize the selectors of
! methods that can be registered dynamically at runtime, register them,
! and return 'YES'.  It should return 'NO' for methods that it does not
! dynamically registered at runtime.
  
!  If '+resolveInstanceMethod:' (or '+resolveClassMethod:') is not
! implemented or returns 'NO', the runtime then tries the forwarding hook.
  
!  Support for '+resolveInstanceMethod:' and 'resolveClassMethod:' was
  added to the GNU Objective-C runtime in GCC version 4.6.
  
  
*************** File: gcc.info,  Node: Forwarding hook,
*** 46823,46875 ****
  ----------------------
  
  The GNU Objective-C runtime provides a hook, called
! `__objc_msg_forward2', which is called by `objc_msg_lookup()' when it
  can't find a method implementation in the runtime tables and after
! calling `+resolveInstanceMethod:' and `+resolveClassMethod:' has been
  attempted and did not succeed in dynamically registering the method.
  
   To configure the hook, you set the global variable
! `__objc_msg_forward2' to a function with the same argument and return
! types of `objc_msg_lookup()'.  When `objc_msg_lookup()' can not find a
  method implementation, it invokes the hook function you provided to get
  a method implementation to return.  So, in practice
! `__objc_msg_forward2' allows you to extend `objc_msg_lookup()' by
! adding some custom code that is called to do a further lookup when no
! standard method implementation can be found using the normal lookup.
  
   This hook is generally reserved for "Foundation" libraries such as
  GNUstep Base, which use it to implement their high-level method
! forwarding API, typically based around the `forwardInvocation:' method.
  So, unless you are implementing your own "Foundation" library, you
  should not set this hook.
  
!  In a typical forwarding implementation, the `__objc_msg_forward2' hook
  function determines the argument and return type of the method that is
  being looked up, and then creates a function that takes these arguments
  and has that return type, and returns it to the caller.  Creating this
  function is non-trivial and is typically performed using a dedicated
! library such as `libffi'.
  
   The forwarding method implementation thus created is returned by
! `objc_msg_lookup()' and is executed as if it was a normal method
! implementation.  When the forwarding method implementation is called,
! it is usually expected to pack all arguments into some sort of object
! (typically, an `NSInvocation' in a "Foundation" library), and hand it
! over to the programmer (`forwardInvocation:') who is then allowed to
  manipulate the method invocation using a high-level API provided by the
  "Foundation" library.  For example, the programmer may want to examine
  the method invocation arguments and name and potentially change them
  before forwarding the method invocation to one or more local objects
! (`performInvocation:') or even to remote objects (by using Distributed
  Objects or some other mechanism).  When all this completes, the return
  value is passed back and must be returned correctly to the original
  caller.
  
!  Note that the GNU Objective-C runtime currently provides no support
! for method forwarding or method invocations other than the
! `__objc_msg_forward2' hook.
  
!  If the forwarding hook does not exist or returns `NULL', the runtime
  currently attempts forwarding using an older, deprecated API, and if
  that fails, it aborts the program.  In future versions of the GNU
  Objective-C runtime, the runtime will immediately abort.
--- 46410,46462 ----
  ----------------------
  
  The GNU Objective-C runtime provides a hook, called
! '__objc_msg_forward2', which is called by 'objc_msg_lookup()' when it
  can't find a method implementation in the runtime tables and after
! calling '+resolveInstanceMethod:' and '+resolveClassMethod:' has been
  attempted and did not succeed in dynamically registering the method.
  
   To configure the hook, you set the global variable
! '__objc_msg_forward2' to a function with the same argument and return
! types of 'objc_msg_lookup()'.  When 'objc_msg_lookup()' can not find a
  method implementation, it invokes the hook function you provided to get
  a method implementation to return.  So, in practice
! '__objc_msg_forward2' allows you to extend 'objc_msg_lookup()' by adding
! some custom code that is called to do a further lookup when no standard
! method implementation can be found using the normal lookup.
  
   This hook is generally reserved for "Foundation" libraries such as
  GNUstep Base, which use it to implement their high-level method
! forwarding API, typically based around the 'forwardInvocation:' method.
  So, unless you are implementing your own "Foundation" library, you
  should not set this hook.
  
!  In a typical forwarding implementation, the '__objc_msg_forward2' hook
  function determines the argument and return type of the method that is
  being looked up, and then creates a function that takes these arguments
  and has that return type, and returns it to the caller.  Creating this
  function is non-trivial and is typically performed using a dedicated
! library such as 'libffi'.
  
   The forwarding method implementation thus created is returned by
! 'objc_msg_lookup()' and is executed as if it was a normal method
! implementation.  When the forwarding method implementation is called, it
! is usually expected to pack all arguments into some sort of object
! (typically, an 'NSInvocation' in a "Foundation" library), and hand it
! over to the programmer ('forwardInvocation:') who is then allowed to
  manipulate the method invocation using a high-level API provided by the
  "Foundation" library.  For example, the programmer may want to examine
  the method invocation arguments and name and potentially change them
  before forwarding the method invocation to one or more local objects
! ('performInvocation:') or even to remote objects (by using Distributed
  Objects or some other mechanism).  When all this completes, the return
  value is passed back and must be returned correctly to the original
  caller.
  
!  Note that the GNU Objective-C runtime currently provides no support for
! method forwarding or method invocations other than the
! '__objc_msg_forward2' hook.
  
!  If the forwarding hook does not exist or returns 'NULL', the runtime
  currently attempts forwarding using an older, deprecated API, and if
  that fails, it aborts the program.  In future versions of the GNU
  Objective-C runtime, the runtime will immediately abort.
*************** Binary compatibility encompasses several
*** 46884,46899 ****
  
  "application binary interface (ABI)"
       The set of runtime conventions followed by all of the tools that
!      deal with binary representations of a program, including
!      compilers, assemblers, linkers, and language runtime support.
!      Some ABIs are formal with a written specification, possibly
!      designed by multiple interested parties.  Others are simply the
!      way things are actually done by a particular set of tools.
  
  "ABI conformance"
!      A compiler conforms to an ABI if it generates code that follows
!      all of the specifications enumerated by that ABI.  A library
!      conforms to an ABI if it is implemented according to that ABI.  An
       application conforms to an ABI if it is built using tools that
       conform to that ABI and does not contain source code that
       specifically changes behavior specified by the ABI.
--- 46471,46486 ----
  
  "application binary interface (ABI)"
       The set of runtime conventions followed by all of the tools that
!      deal with binary representations of a program, including compilers,
!      assemblers, linkers, and language runtime support.  Some ABIs are
!      formal with a written specification, possibly designed by multiple
!      interested parties.  Others are simply the way things are actually
!      done by a particular set of tools.
  
  "ABI conformance"
!      A compiler conforms to an ABI if it generates code that follows all
!      of the specifications enumerated by that ABI.  A library conforms
!      to an ABI if it is implemented according to that ABI.  An
       application conforms to an ABI if it is built using tools that
       conform to that ABI and does not contain source code that
       specifically changes behavior specified by the ABI.
*************** Binary compatibility encompasses several
*** 46906,46915 ****
       Different sets of tools are interoperable if they generate files
       that can be used in the same program.  The set of tools includes
       compilers, assemblers, linkers, libraries, header files, startup
!      files, and debuggers.  Binaries produced by different sets of
!      tools are not interoperable unless they implement the same ABI.
!      This applies to different versions of the same tools as well as
!      tools from different vendors.
  
  "intercallability"
       Whether a function in a binary built by one set of tools can call a
--- 46493,46502 ----
       Different sets of tools are interoperable if they generate files
       that can be used in the same program.  The set of tools includes
       compilers, assemblers, linkers, libraries, header files, startup
!      files, and debuggers.  Binaries produced by different sets of tools
!      are not interoperable unless they implement the same ABI.  This
!      applies to different versions of the same tools as well as tools
!      from different vendors.
  
  "intercallability"
       Whether a function in a binary built by one set of tools can call a
*************** Binary compatibility encompasses several
*** 46917,46928 ****
       of interoperability.
  
  "implementation-defined features"
!      Language standards include lists of implementation-defined
!      features whose behavior can vary from one implementation to
!      another.  Some of these features are normally covered by a
!      platform's ABI and others are not.  The features that are not
!      covered by an ABI generally affect how a program behaves, but not
!      intercallability.
  
  "compatibility"
       Conformance to the same ABI and the same behavior of
--- 46504,46514 ----
       of interoperability.
  
  "implementation-defined features"
!      Language standards include lists of implementation-defined features
!      whose behavior can vary from one implementation to another.  Some
!      of these features are normally covered by a platform's ABI and
!      others are not.  The features that are not covered by an ABI
!      generally affect how a program behaves, but not intercallability.
  
  "compatibility"
       Conformance to the same ABI and the same behavior of
*************** Binary compatibility encompasses several
*** 46933,46959 ****
  affects code generation and runtime support for:
  
     * size and alignment of data types
- 
     * layout of structured types
- 
     * calling conventions
- 
     * register usage conventions
- 
     * interfaces for runtime arithmetic support
- 
     * object file formats
  
   In addition, the application binary interface implemented by a C++
  compiler affects code generation and runtime support for:
     * name mangling
- 
     * exception handling
- 
     * invoking constructors and destructors
- 
     * layout, alignment, and padding of classes
- 
     * layout and alignment of virtual tables
  
   Some GCC compilation options cause the compiler to generate code that
--- 46519,46536 ----
*************** GCC releases, but it is possible that we
*** 46977,46983 ****
  make this difficult.  Such problems could include different
  interpretations of the C++ ABI by different vendors, bugs in the ABI, or
  bugs in the implementation of the ABI in different compilers.  GCC's
! `-Wabi' switch warns when G++ generates code that is probably not
  compatible with the C++ ABI.
  
   The C++ library used with a C++ compiler includes the Standard C++
--- 46554,46560 ----
  make this difficult.  Such problems could include different
  interpretations of the C++ ABI by different vendors, bugs in the ABI, or
  bugs in the implementation of the ABI in different compilers.  GCC's
! '-Wabi' switch warns when G++ generates code that is probably not
  compatible with the C++ ABI.
  
   The C++ library used with a C++ compiler includes the Standard C++
*************** compiler and runtime support.
*** 46991,47004 ****
  
   When G++ and another C++ compiler conform to the same C++ ABI, but the
  implementations of the Standard C++ Library that they normally use do
! not follow the same ABI for the Standard C++ Library, object files
! built with those compilers can be used in the same program only if they
! use the same C++ library.  This requires specifying the location of the
! C++ library header files when invoking the compiler whose usual library
! is not being used.  The location of GCC's C++ header files depends on
! how the GCC build was configured, but can be seen by using the G++ `-v'
! option.  With default configuration options for G++ 3.3 the compile
! line for a different C++ compiler needs to include
  
           -IGCC_INSTALL_DIRECTORY/include/c++/3.3
  
--- 46568,46581 ----
  
   When G++ and another C++ compiler conform to the same C++ ABI, but the
  implementations of the Standard C++ Library that they normally use do
! not follow the same ABI for the Standard C++ Library, object files built
! with those compilers can be used in the same program only if they use
! the same C++ library.  This requires specifying the location of the C++
! library header files when invoking the compiler whose usual library is
! not being used.  The location of GCC's C++ header files depends on how
! the GCC build was configured, but can be seen by using the G++ '-v'
! option.  With default configuration options for G++ 3.3 the compile line
! for a different C++ compiler needs to include
  
           -IGCC_INSTALL_DIRECTORY/include/c++/3.3
  
*************** files for that other library.
*** 47008,47032 ****
  
   The most straightforward way to link a program to use a particular C++
  library is to use a C++ driver that specifies that C++ library by
! default.  The `g++' driver, for example, tells the linker where to find
! GCC's C++ library (`libstdc++') plus the other libraries and startup
  files it needs, in the proper order.
  
   If a program must use a different C++ library and it's not possible to
  do the final link using a C++ driver that uses that library by default,
! it is necessary to tell `g++' the location and name of that library.
! It might also be necessary to specify different startup files and other
  runtime support libraries, and to suppress the use of GCC's support
! libraries with one or more of the options `-nostdlib', `-nostartfiles',
! and `-nodefaultlibs'.
  
  
  File: gcc.info,  Node: Gcov,  Next: Gcov-tool,  Prev: Compatibility,  Up: Top
  
! 10 `gcov'--a Test Coverage Program
  **********************************
  
! `gcov' is a tool you can use in conjunction with GCC to test code
  coverage in your programs.
  
  * Menu:
--- 46585,46609 ----
  
   The most straightforward way to link a program to use a particular C++
  library is to use a C++ driver that specifies that C++ library by
! default.  The 'g++' driver, for example, tells the linker where to find
! GCC's C++ library ('libstdc++') plus the other libraries and startup
  files it needs, in the proper order.
  
   If a program must use a different C++ library and it's not possible to
  do the final link using a C++ driver that uses that library by default,
! it is necessary to tell 'g++' the location and name of that library.  It
! might also be necessary to specify different startup files and other
  runtime support libraries, and to suppress the use of GCC's support
! libraries with one or more of the options '-nostdlib', '-nostartfiles',
! and '-nodefaultlibs'.
  
  
  File: gcc.info,  Node: Gcov,  Next: Gcov-tool,  Prev: Compatibility,  Up: Top
  
! 10 'gcov'--a Test Coverage Program
  **********************************
  
! 'gcov' is a tool you can use in conjunction with GCC to test code
  coverage in your programs.
  
  * Menu:
*************** coverage in your programs.
*** 47040,47058 ****
  
  File: gcc.info,  Node: Gcov Intro,  Next: Invoking Gcov,  Up: Gcov
  
! 10.1 Introduction to `gcov'
  ===========================
  
! `gcov' is a test coverage program.  Use it in concert with GCC to
! analyze your programs to help create more efficient, faster running
! code and to discover untested parts of your program.  You can use
! `gcov' as a profiling tool to help discover where your optimization
! efforts will best affect your code.  You can also use `gcov' along with
! the other profiling tool, `gprof', to assess which parts of your code
! use the greatest amount of computing time.
  
   Profiling tools help you analyze your code's performance.  Using a
! profiler such as `gcov' or `gprof', you can find out some basic
  performance statistics, such as:
  
     * how often each line of code executes
--- 46617,46635 ----
  
  File: gcc.info,  Node: Gcov Intro,  Next: Invoking Gcov,  Up: Gcov
  
! 10.1 Introduction to 'gcov'
  ===========================
  
! 'gcov' is a test coverage program.  Use it in concert with GCC to
! analyze your programs to help create more efficient, faster running code
! and to discover untested parts of your program.  You can use 'gcov' as a
! profiling tool to help discover where your optimization efforts will
! best affect your code.  You can also use 'gcov' along with the other
! profiling tool, 'gprof', to assess which parts of your code use the
! greatest amount of computing time.
  
   Profiling tools help you analyze your code's performance.  Using a
! profiler such as 'gcov' or 'gprof', you can find out some basic
  performance statistics, such as:
  
     * how often each line of code executes
*************** performance statistics, such as:
*** 47063,47069 ****
  
   Once you know these things about how your code works when compiled, you
  can look at each module to see which modules should be optimized.
! `gcov' helps you determine where to work on optimization.
  
   Software developers also use coverage testing in concert with
  testsuites, to make sure software is actually good enough for a release.
--- 46640,46646 ----
  
   Once you know these things about how your code works when compiled, you
  can look at each module to see which modules should be optimized.
! 'gcov' helps you determine where to work on optimization.
  
   Software developers also use coverage testing in concert with
  testsuites, to make sure software is actually good enough for a release.
*************** to be added to the testsuites to create
*** 47074,47150 ****
  final product.
  
   You should compile your code without optimization if you plan to use
! `gcov' because the optimization, by combining some lines of code into
  one function, may not give you as much information as you need to look
! for `hot spots' where the code is using a great deal of computer time.
! Likewise, because `gcov' accumulates statistics by line (at the lowest
! resolution), it works best with a programming style that places only
! one statement on each line.  If you use complicated macros that expand
! to loops or to other control structures, the statistics are less
  helpful--they only report on the line where the macro call appears.  If
  your complex macros behave like functions, you can replace them with
  inline functions to solve this problem.
  
!  `gcov' creates a logfile called `SOURCEFILE.gcov' which indicates how
! many times each line of a source file `SOURCEFILE.c' has executed.  You
! can use these logfiles along with `gprof' to aid in fine-tuning the
! performance of your programs.  `gprof' gives timing information you can
! use along with the information you get from `gcov'.
  
!  `gcov' works only on code compiled with GCC.  It is not compatible
! with any other profiling or test coverage mechanism.
  
  
  File: gcc.info,  Node: Invoking Gcov,  Next: Gcov and Optimization,  Prev: Gcov Intro,  Up: Gcov
  
! 10.2 Invoking `gcov'
  ====================
  
       gcov [OPTIONS] FILES
  
!  `gcov' accepts the following options:
  
! `-a'
! `--all-blocks'
       Write individual execution counts for every basic block.  Normally
       gcov outputs execution counts only for the main blocks of a line.
       With this option you can determine if blocks within a single line
       are not being executed.
  
! `-b'
! `--branch-probabilities'
       Write branch frequencies to the output file, and write branch
!      summary info to the standard output.  This option allows you to
!      see how often each branch in your program was taken.
!      Unconditional branches will not be shown, unless the `-u' option
!      is given.
  
! `-c'
! `--branch-counts'
       Write branch frequencies as the number of branches taken, rather
       than the percentage of branches taken.
  
! `-d'
! `--display-progress'
       Display the progress on the standard output.
  
! `-f'
! `--function-summaries'
       Output summaries for each function in addition to the file level
       summary.
  
! `-h'
! `--help'
!      Display help about using `gcov' (on the standard output), and exit
       without doing any further processing.
  
! `-i'
! `--intermediate-format'
       Output gcov file in an easy-to-parse intermediate text format that
!      can be used by `lcov' or other tools. The output is a single
!      `.gcov' file per `.gcda' file. No source code is required.
  
!      The format of the intermediate `.gcov' file is plain text with one
       entry per line
  
            file:SOURCE_FILE_NAME
--- 46651,46726 ----
  final product.
  
   You should compile your code without optimization if you plan to use
! 'gcov' because the optimization, by combining some lines of code into
  one function, may not give you as much information as you need to look
! for 'hot spots' where the code is using a great deal of computer time.
! Likewise, because 'gcov' accumulates statistics by line (at the lowest
! resolution), it works best with a programming style that places only one
! statement on each line.  If you use complicated macros that expand to
! loops or to other control structures, the statistics are less
  helpful--they only report on the line where the macro call appears.  If
  your complex macros behave like functions, you can replace them with
  inline functions to solve this problem.
  
!  'gcov' creates a logfile called 'SOURCEFILE.gcov' which indicates how
! many times each line of a source file 'SOURCEFILE.c' has executed.  You
! can use these logfiles along with 'gprof' to aid in fine-tuning the
! performance of your programs.  'gprof' gives timing information you can
! use along with the information you get from 'gcov'.
  
!  'gcov' works only on code compiled with GCC.  It is not compatible with
! any other profiling or test coverage mechanism.
  
  
  File: gcc.info,  Node: Invoking Gcov,  Next: Gcov and Optimization,  Prev: Gcov Intro,  Up: Gcov
  
! 10.2 Invoking 'gcov'
  ====================
  
       gcov [OPTIONS] FILES
  
!  'gcov' accepts the following options:
  
! '-a'
! '--all-blocks'
       Write individual execution counts for every basic block.  Normally
       gcov outputs execution counts only for the main blocks of a line.
       With this option you can determine if blocks within a single line
       are not being executed.
  
! '-b'
! '--branch-probabilities'
       Write branch frequencies to the output file, and write branch
!      summary info to the standard output.  This option allows you to see
!      how often each branch in your program was taken.  Unconditional
!      branches will not be shown, unless the '-u' option is given.
  
! '-c'
! '--branch-counts'
       Write branch frequencies as the number of branches taken, rather
       than the percentage of branches taken.
  
! '-d'
! '--display-progress'
       Display the progress on the standard output.
  
! '-f'
! '--function-summaries'
       Output summaries for each function in addition to the file level
       summary.
  
! '-h'
! '--help'
!      Display help about using 'gcov' (on the standard output), and exit
       without doing any further processing.
  
! '-i'
! '--intermediate-format'
       Output gcov file in an easy-to-parse intermediate text format that
!      can be used by 'lcov' or other tools.  The output is a single
!      '.gcov' file per '.gcda' file.  No source code is required.
  
!      The format of the intermediate '.gcov' file is plain text with one
       entry per line
  
            file:SOURCE_FILE_NAME
*************** File: gcc.info,  Node: Invoking Gcov,  N
*** 47161,47167 ****
            file. All entries following a FILE pertain to that source file
            until the next FILE entry.
  
!      Here is a sample when `-i' is used in conjunction with `-b' option:
  
            file:array.cc
            function:11,1,_Z3sumRKSt6vectorIPiSaIS0_EE
--- 46737,46743 ----
            file. All entries following a FILE pertain to that source file
            until the next FILE entry.
  
!      Here is a sample when '-i' is used in conjunction with '-b' option:
  
            file:array.cc
            function:11,1,_Z3sumRKSt6vectorIPiSaIS0_EE
*************** File: gcc.info,  Node: Invoking Gcov,  N
*** 47173,47226 ****
            lcount:26,1
            branch:28,nottaken
  
! `-l'
! `--long-file-names'
       Create long file names for included source files.  For example, if
!      the header file `x.h' contains code, and was included in the file
!      `a.c', then running `gcov' on the file `a.c' will produce an
!      output file called `a.c##x.h.gcov' instead of `x.h.gcov'.  This
!      can be useful if `x.h' is included in multiple source files and
!      you want to see the individual contributions.  If you use the `-p'
!      option, both the including and included file names will be
!      complete path names.
  
! `-m'
! `--demangled-names'
!      Display demangled function names in output. The default is to show
       mangled function names.
  
! `-n'
! `--no-output'
!      Do not create the `gcov' output file.
  
! `-o DIRECTORY|FILE'
! `--object-directory DIRECTORY'
! `--object-file FILE'
       Specify either the directory containing the gcov data files, or the
!      object path name.  The `.gcno', and `.gcda' data files are
!      searched for using this option.  If a directory is specified, the
!      data files are in that directory and named after the input file
!      name, without its extension.  If a file is specified here, the
!      data files are named after that file, without its extension.
  
! `-p'
! `--preserve-paths'
       Preserve complete path information in the names of generated
!      `.gcov' files.  Without this option, just the filename component is
!      used.  With this option, all directories are used, with `/'
!      characters translated to `#' characters, `.' directory components
!      removed and unremoveable `..' components renamed to `^'.  This is
       useful if sourcefiles are in several different directories.
  
! `-r'
! `--relative-only'
       Only output information about source files with a relative pathname
       (after source prefix elision).  Absolute paths are usually system
       header files and coverage of any inline functions therein is
       normally uninteresting.
  
! `-s DIRECTORY'
! `--source-prefix DIRECTORY'
       A prefix for source file names to remove when generating the output
       coverage files.  This option is useful when building in a separate
       directory, and the pathname to the source directory is not wanted
--- 46749,46802 ----
            lcount:26,1
            branch:28,nottaken
  
! '-l'
! '--long-file-names'
       Create long file names for included source files.  For example, if
!      the header file 'x.h' contains code, and was included in the file
!      'a.c', then running 'gcov' on the file 'a.c' will produce an output
!      file called 'a.c##x.h.gcov' instead of 'x.h.gcov'.  This can be
!      useful if 'x.h' is included in multiple source files and you want
!      to see the individual contributions.  If you use the '-p' option,
!      both the including and included file names will be complete path
!      names.
  
! '-m'
! '--demangled-names'
!      Display demangled function names in output.  The default is to show
       mangled function names.
  
! '-n'
! '--no-output'
!      Do not create the 'gcov' output file.
  
! '-o DIRECTORY|FILE'
! '--object-directory DIRECTORY'
! '--object-file FILE'
       Specify either the directory containing the gcov data files, or the
!      object path name.  The '.gcno', and '.gcda' data files are searched
!      for using this option.  If a directory is specified, the data files
!      are in that directory and named after the input file name, without
!      its extension.  If a file is specified here, the data files are
!      named after that file, without its extension.
  
! '-p'
! '--preserve-paths'
       Preserve complete path information in the names of generated
!      '.gcov' files.  Without this option, just the filename component is
!      used.  With this option, all directories are used, with '/'
!      characters translated to '#' characters, '.' directory components
!      removed and unremoveable '..' components renamed to '^'.  This is
       useful if sourcefiles are in several different directories.
  
! '-r'
! '--relative-only'
       Only output information about source files with a relative pathname
       (after source prefix elision).  Absolute paths are usually system
       header files and coverage of any inline functions therein is
       normally uninteresting.
  
! '-s DIRECTORY'
! '--source-prefix DIRECTORY'
       A prefix for source file names to remove when generating the output
       coverage files.  This option is useful when building in a separate
       directory, and the pathname to the source directory is not wanted
*************** File: gcc.info,  Node: Invoking Gcov,  N
*** 47228,47323 ****
       detection is applied before determining whether the source file is
       absolute.
  
! `-u'
! `--unconditional-branches'
!      When branch probabilities are given, include those of
!      unconditional branches.  Unconditional branches are normally not
!      interesting.
  
! `-v'
! `--version'
!      Display the `gcov' version number (on the standard output), and
       exit without doing any further processing.
  
! `-w'
! `--verbose'
       Print verbose informations related to basic blocks and arcs.
  
! `-x'
! `--hash-filenames'
       By default, gcov uses the full pathname of the source files to to
       create an output filename.  This can lead to long filenames that
       can overflow filesystem limits.  This option creates names of the
!      form `SOURCE-FILE##MD5.gcov', where the SOURCE-FILE component is
       the final filename part and the MD5 component is calculated from
       the full mangled name that would have been used otherwise.
  
! 
!  `gcov' should be run with the current directory the same as that when
  you invoked the compiler.  Otherwise it will not be able to locate the
! source files.  `gcov' produces files called `MANGLEDNAME.gcov' in the
! current directory.  These contain the coverage information of the
! source file they correspond to.  One `.gcov' file is produced for each
! source (or header) file containing code, which was compiled to produce
! the data files.  The MANGLEDNAME part of the output file name is
! usually simply the source file name, but can be something more
! complicated if the `-l' or `-p' options are given.  Refer to those
! options for details.
  
!  If you invoke `gcov' with multiple input files, the contributions from
! each input file are summed.  Typically you would invoke it with the
! same list of files as the final link of your executable.
  
!  The `.gcov' files contain the `:' separated fields along with program
  source code.  The format is
  
       EXECUTION_COUNT:LINE_NUMBER:SOURCE LINE TEXT
  
   Additional block information may succeed each line, when requested by
! command line option.  The EXECUTION_COUNT is `-' for lines containing
! no code.  Unexecuted lines are marked `#####' or `====', depending on
  whether they are reachable by non-exceptional paths or only exceptional
! paths such as C++ exception handlers, respectively. Given `-a' option,
! unexecuted blocks are marked `$$$$$' or `%%%%%', depending on whether a
  basic block is reachable via non-exceptional or exceptional paths.
  
!  Some lines of information at the start have LINE_NUMBER of zero.
! These preamble lines are of the form
  
       -:0:TAG:VALUE
  
   The ordering and number of these preamble lines will be augmented as
! `gcov' development progresses -- do not rely on them remaining
  unchanged.  Use TAG to locate a particular preamble line.
  
   The additional block information is of the form
  
       TAG INFORMATION
  
!  The INFORMATION is human readable, but designed to be simple enough
! for machine parsing too.
  
   When printing percentages, 0% and 100% are only printed when the values
  are _exactly_ 0% and 100% respectively.  Other values which would
  conventionally be rounded to 0% or 100% are instead printed as the
  nearest non-boundary value.
  
!  When using `gcov', you must first compile your program with two
! special GCC options: `-fprofile-arcs -ftest-coverage'.  This tells the
! compiler to generate additional information needed by gcov (basically a
! flow graph of the program) and also includes additional code in the
! object files for generating the extra profiling information needed by
! gcov.  These additional files are placed in the directory where the
! object file is located.
  
   Running the program will cause profile output to be generated.  For
! each source file compiled with `-fprofile-arcs', an accompanying
! `.gcda' file will be placed in the object file directory.
  
!  Running `gcov' with your program's source file names as arguments will
  now produce a listing of the code along with frequency of execution for
! each line.  For example, if your program is called `tmp.c', this is
! what you see when you use the basic `gcov' facility:
  
       $ gcc -fprofile-arcs -ftest-coverage tmp.c
       $ a.out
--- 46804,46903 ----
       detection is applied before determining whether the source file is
       absolute.
  
! '-u'
! '--unconditional-branches'
!      When branch probabilities are given, include those of unconditional
!      branches.  Unconditional branches are normally not interesting.
  
! '-v'
! '--version'
!      Display the 'gcov' version number (on the standard output), and
       exit without doing any further processing.
  
! '-w'
! '--verbose'
       Print verbose informations related to basic blocks and arcs.
  
! '-x'
! '--hash-filenames'
       By default, gcov uses the full pathname of the source files to to
       create an output filename.  This can lead to long filenames that
       can overflow filesystem limits.  This option creates names of the
!      form 'SOURCE-FILE##MD5.gcov', where the SOURCE-FILE component is
       the final filename part and the MD5 component is calculated from
       the full mangled name that would have been used otherwise.
  
!  'gcov' should be run with the current directory the same as that when
  you invoked the compiler.  Otherwise it will not be able to locate the
! source files.  'gcov' produces files called 'MANGLEDNAME.gcov' in the
! current directory.  These contain the coverage information of the source
! file they correspond to.  One '.gcov' file is produced for each source
! (or header) file containing code, which was compiled to produce the data
! files.  The MANGLEDNAME part of the output file name is usually simply
! the source file name, but can be something more complicated if the '-l'
! or '-p' options are given.  Refer to those options for details.
  
!  If you invoke 'gcov' with multiple input files, the contributions from
! each input file are summed.  Typically you would invoke it with the same
! list of files as the final link of your executable.
  
!  The '.gcov' files contain the ':' separated fields along with program
  source code.  The format is
  
       EXECUTION_COUNT:LINE_NUMBER:SOURCE LINE TEXT
  
   Additional block information may succeed each line, when requested by
! command line option.  The EXECUTION_COUNT is '-' for lines containing no
! code.  Unexecuted lines are marked '#####' or '=====', depending on
  whether they are reachable by non-exceptional paths or only exceptional
! paths such as C++ exception handlers, respectively.  Given '-a' option,
! unexecuted blocks are marked '$$$$$' or '%%%%%', depending on whether a
  basic block is reachable via non-exceptional or exceptional paths.
  
!  Note that GCC can completely remove the bodies of functions that are
! not needed - for instance if they are inlined everywhere.  Such
! functions are marked with '-', which can be confusing.  Use the
! '-fkeep-inline-functions' and '-fkeep-static-functions' options to
! retain these functions and allow gcov to properly show their
! EXECUTION_COUNT.
! 
!  Some lines of information at the start have LINE_NUMBER of zero.  These
! preamble lines are of the form
  
       -:0:TAG:VALUE
  
   The ordering and number of these preamble lines will be augmented as
! 'gcov' development progresses -- do not rely on them remaining
  unchanged.  Use TAG to locate a particular preamble line.
  
   The additional block information is of the form
  
       TAG INFORMATION
  
!  The INFORMATION is human readable, but designed to be simple enough for
! machine parsing too.
  
   When printing percentages, 0% and 100% are only printed when the values
  are _exactly_ 0% and 100% respectively.  Other values which would
  conventionally be rounded to 0% or 100% are instead printed as the
  nearest non-boundary value.
  
!  When using 'gcov', you must first compile your program with two special
! GCC options: '-fprofile-arcs -ftest-coverage'.  This tells the compiler
! to generate additional information needed by gcov (basically a flow
! graph of the program) and also includes additional code in the object
! files for generating the extra profiling information needed by gcov.
! These additional files are placed in the directory where the object file
! is located.
  
   Running the program will cause profile output to be generated.  For
! each source file compiled with '-fprofile-arcs', an accompanying '.gcda'
! file will be placed in the object file directory.
  
!  Running 'gcov' with your program's source file names as arguments will
  now produce a listing of the code along with frequency of execution for
! each line.  For example, if your program is called 'tmp.c', this is what
! you see when you use the basic 'gcov' facility:
  
       $ gcc -fprofile-arcs -ftest-coverage tmp.c
       $ a.out
*************** what you see when you use the basic `gco
*** 47325,47331 ****
       90.00% of 10 source lines executed in file tmp.c
       Creating tmp.c.gcov.
  
!  The file `tmp.c.gcov' contains output from `gcov'.  Here is a sample:
  
               -:    0:Source:tmp.c
               -:    0:Graph:tmp.gcno
--- 46905,46911 ----
       90.00% of 10 source lines executed in file tmp.c
       Creating tmp.c.gcov.
  
!  The file 'tmp.c.gcov' contains output from 'gcov'.  Here is a sample:
  
               -:    0:Source:tmp.c
               -:    0:Graph:tmp.gcno
*************** what you see when you use the basic `gco
*** 47350,47357 ****
               1:   16:  return 0;
               -:   17:}
  
!  When you use the `-a' option, you will get individual block counts,
! and the output looks like this:
  
               -:    0:Source:tmp.c
               -:    0:Graph:tmp.gcno
--- 46930,46937 ----
               1:   16:  return 0;
               -:   17:}
  
!  When you use the '-a' option, you will get individual block counts, and
! the output looks like this:
  
               -:    0:Source:tmp.c
               -:    0:Graph:tmp.gcno
*************** contain code, unless previous blocks end
*** 47390,47402 ****
  execution count of a line is shown and subsequent lines show the
  execution counts for individual blocks that end on that line.  After
  each block, the branch and call counts of the block will be shown, if
! the `-b' option is given.
  
   Because of the way GCC instruments calls, a call count can be shown
  after a line with no individual blocks.  As you can see, line 13
  contains a basic block that was not executed.
  
!  When you use the `-b' option, your output looks like this:
  
       $ gcov -b tmp.c
       90.00% of 10 source lines executed in file tmp.c
--- 46970,46982 ----
  execution count of a line is shown and subsequent lines show the
  execution counts for individual blocks that end on that line.  After
  each block, the branch and call counts of the block will be shown, if
! the '-b' option is given.
  
   Because of the way GCC instruments calls, a call count can be shown
  after a line with no individual blocks.  As you can see, line 13
  contains a basic block that was not executed.
  
!  When you use the '-b' option, your output looks like this:
  
       $ gcov -b tmp.c
       90.00% of 10 source lines executed in file tmp.c
*************** contains a basic block that was not exec
*** 47405,47411 ****
       50.00% of 2 calls executed in file tmp.c
       Creating tmp.c.gcov.
  
!  Here is a sample of a resulting `tmp.c.gcov' file:
  
               -:    0:Source:tmp.c
               -:    0:Graph:tmp.gcno
--- 46985,46991 ----
       50.00% of 2 calls executed in file tmp.c
       Creating tmp.c.gcov.
  
!  Here is a sample of a resulting 'tmp.c.gcov' file:
  
               -:    0:Source:tmp.c
               -:    0:Graph:tmp.gcno
*************** function's blocks were executed.
*** 47443,47454 ****
  
   For each basic block, a line is printed after the last line of the
  basic block describing the branch or call that ends the basic block.
! There can be multiple branches and calls listed for a single source
! line if there are multiple basic blocks that end on that line.  In this
! case, the branches and calls are each given a number.  There is no
! simple way to map these branches and calls back to source constructs.
! In general, though, the lowest numbered branch or call will correspond
! to the leftmost construct on the source line.
  
   For a branch, if it was executed at least once, then a percentage
  indicating the number of times the branch was taken divided by the
--- 47023,47034 ----
  
   For each basic block, a line is printed after the last line of the
  basic block describing the branch or call that ends the basic block.
! There can be multiple branches and calls listed for a single source line
! if there are multiple basic blocks that end on that line.  In this case,
! the branches and calls are each given a number.  There is no simple way
! to map these branches and calls back to source constructs.  In general,
! though, the lowest numbered branch or call will correspond to the
! leftmost construct on the source line.
  
   For a branch, if it was executed at least once, then a percentage
  indicating the number of times the branch was taken divided by the
*************** message "never executed" is printed.
*** 47458,47468 ****
   For a call, if it was executed at least once, then a percentage
  indicating the number of times the call returned divided by the number
  of times the call was executed will be printed.  This will usually be
! 100%, but may be less for functions that call `exit' or `longjmp', and
  thus may not return every time they are called.
  
   The execution counts are cumulative.  If the example program were
! executed again without removing the `.gcda' file, the count for the
  number of times each line in the source was executed would be added to
  the results of the previous run(s).  This is potentially useful in
  several ways.  For example, it could be used to accumulate data over a
--- 47038,47048 ----
   For a call, if it was executed at least once, then a percentage
  indicating the number of times the call returned divided by the number
  of times the call was executed will be printed.  This will usually be
! 100%, but may be less for functions that call 'exit' or 'longjmp', and
  thus may not return every time they are called.
  
   The execution counts are cumulative.  If the example program were
! executed again without removing the '.gcda' file, the count for the
  number of times each line in the source was executed would be added to
  the results of the previous run(s).  This is potentially useful in
  several ways.  For example, it could be used to accumulate data over a
*************** number of program runs as part of a test
*** 47470,47478 ****
  provide more accurate long-term information over a large number of
  program runs.
  
!  The data in the `.gcda' files is saved immediately before the program
! exits.  For each source file compiled with `-fprofile-arcs', the
! profiling code first attempts to read in an existing `.gcda' file; if
  the file doesn't match the executable (differing number of basic block
  counts) it will ignore the contents of the file.  It then adds in the
  new execution counts and finally writes the data to the file.
--- 47050,47058 ----
  provide more accurate long-term information over a large number of
  program runs.
  
!  The data in the '.gcda' files is saved immediately before the program
! exits.  For each source file compiled with '-fprofile-arcs', the
! profiling code first attempts to read in an existing '.gcda' file; if
  the file doesn't match the executable (differing number of basic block
  counts) it will ignore the contents of the file.  It then adds in the
  new execution counts and finally writes the data to the file.
*************** new execution counts and finally writes
*** 47480,47494 ****
  
  File: gcc.info,  Node: Gcov and Optimization,  Next: Gcov Data Files,  Prev: Invoking Gcov,  Up: Gcov
  
! 10.3 Using `gcov' with GCC Optimization
  =======================================
  
! If you plan to use `gcov' to help optimize your code, you must first
! compile your program with two special GCC options: `-fprofile-arcs
  -ftest-coverage'.  Aside from that, you can use any other GCC options;
  but if you want to prove that every single line in your program was
! executed, you should not compile with optimization at the same time.
! On some machines the optimizer can eliminate some simple code lines by
  combining them with other lines.  For example, code like this:
  
       if (a != b)
--- 47060,47074 ----
  
  File: gcc.info,  Node: Gcov and Optimization,  Next: Gcov Data Files,  Prev: Invoking Gcov,  Up: Gcov
  
! 10.3 Using 'gcov' with GCC Optimization
  =======================================
  
! If you plan to use 'gcov' to help optimize your code, you must first
! compile your program with two special GCC options: '-fprofile-arcs
  -ftest-coverage'.  Aside from that, you can use any other GCC options;
  but if you want to prove that every single line in your program was
! executed, you should not compile with optimization at the same time.  On
! some machines the optimizer can eliminate some simple code lines by
  combining them with other lines.  For example, code like this:
  
       if (a != b)
*************** combining them with other lines.  For ex
*** 47497,47505 ****
         c = 0;
  
  can be compiled into one instruction on some machines.  In this case,
! there is no way for `gcov' to calculate separate execution counts for
  each line because there isn't separate code for each line.  Hence the
! `gcov' output looks like this if you compiled the program with
  optimization:
  
             100:   12:if (a != b)
--- 47077,47085 ----
         c = 0;
  
  can be compiled into one instruction on some machines.  In this case,
! there is no way for 'gcov' to calculate separate execution counts for
  each line because there isn't separate code for each line.  Hence the
! 'gcov' output looks like this if you compiled the program with
  optimization:
  
             100:   12:if (a != b)
*************** shown depends on where the function is i
*** 47519,47533 ****
  at all.
  
   If the function is not inlined, the compiler must emit an out of line
! copy of the function, in any object file that needs it.  If `fileA.o'
! and `fileB.o' both contain out of line bodies of a particular
! inlineable function, they will also both contain coverage counts for
! that function.  When `fileA.o' and `fileB.o' are linked together, the
! linker will, on many systems, select one of those out of line bodies
! for all calls to that function, and remove or ignore the other.
! Unfortunately, it will not remove the coverage counters for the unused
! function body.  Hence when instrumented, all but one use of that
! function will show zero counts.
  
   If the function is inlined in several places, the block structure in
  each location might not be the same.  For instance, a condition might
--- 47099,47113 ----
  at all.
  
   If the function is not inlined, the compiler must emit an out of line
! copy of the function, in any object file that needs it.  If 'fileA.o'
! and 'fileB.o' both contain out of line bodies of a particular inlineable
! function, they will also both contain coverage counts for that function.
! When 'fileA.o' and 'fileB.o' are linked together, the linker will, on
! many systems, select one of those out of line bodies for all calls to
! that function, and remove or ignore the other.  Unfortunately, it will
! not remove the coverage counters for the unused function body.  Hence
! when instrumented, all but one use of that function will show zero
! counts.
  
   If the function is inlined in several places, the block structure in
  each location might not be the same.  For instance, a condition might
*************** now be calculable at compile time in som
*** 47535,47574 ****
  coverage of all the uses of the inline function will be shown for the
  same source lines, the line counts themselves might seem inconsistent.
  
!  Long-running applications can use the `_gcov_reset' and `_gcov_dump'
  facilities to restrict profile collection to the program region of
! interest. Calling `_gcov_reset(void)' will clear all profile counters
! to zero, and calling `_gcov_dump(void)' will cause the profile
! information collected at that point to be dumped to `.gcda' output
! files.
  
  
  File: gcc.info,  Node: Gcov Data Files,  Next: Cross-profiling,  Prev: Gcov and Optimization,  Up: Gcov
  
! 10.4 Brief Description of `gcov' Data Files
  ===========================================
  
! `gcov' uses two files for profiling.  The names of these files are
  derived from the original _object_ file by substituting the file suffix
! with either `.gcno', or `.gcda'.  The files contain coverage and
! profile data stored in a platform-independent format.  The `.gcno'
! files are placed in the same directory as the object file.  By default,
! the `.gcda' files are also stored in the same directory as the object
! file, but the GCC `-fprofile-dir' option may be used to store the
! `.gcda' files in a separate directory.
  
!  The `.gcno' notes file is generated when the source file is compiled
! with the GCC `-ftest-coverage' option.  It contains information to
  reconstruct the basic block graphs and assign source line numbers to
  blocks.
  
!  The `.gcda' count data file is generated when a program containing
! object files built with the GCC `-fprofile-arcs' option is executed.  A
! separate `.gcda' file is created for each object file compiled with
! this option.  It contains arc transition counts, value profile counts,
! and some summary information.
  
!  The full details of the file format is specified in `gcov-io.h', and
  functions provided in that header file should be used to access the
  coverage files.
  
--- 47115,47156 ----
  coverage of all the uses of the inline function will be shown for the
  same source lines, the line counts themselves might seem inconsistent.
  
!  Long-running applications can use the '_gcov_reset' and '_gcov_dump'
  facilities to restrict profile collection to the program region of
! interest.  Calling '_gcov_reset(void)' will clear all profile counters
! to zero, and calling '_gcov_dump(void)' will cause the profile
! information collected at that point to be dumped to '.gcda' output
! files.  If an executable loads a dynamic shared object via dlopen
! functionality, '-Wl,--dynamic-list-data' is needed to dump all profile
! data.
  
  
  File: gcc.info,  Node: Gcov Data Files,  Next: Cross-profiling,  Prev: Gcov and Optimization,  Up: Gcov
  
! 10.4 Brief Description of 'gcov' Data Files
  ===========================================
  
! 'gcov' uses two files for profiling.  The names of these files are
  derived from the original _object_ file by substituting the file suffix
! with either '.gcno', or '.gcda'.  The files contain coverage and profile
! data stored in a platform-independent format.  The '.gcno' files are
! placed in the same directory as the object file.  By default, the
! '.gcda' files are also stored in the same directory as the object file,
! but the GCC '-fprofile-dir' option may be used to store the '.gcda'
! files in a separate directory.
  
!  The '.gcno' notes file is generated when the source file is compiled
! with the GCC '-ftest-coverage' option.  It contains information to
  reconstruct the basic block graphs and assign source line numbers to
  blocks.
  
!  The '.gcda' count data file is generated when a program containing
! object files built with the GCC '-fprofile-arcs' option is executed.  A
! separate '.gcda' file is created for each object file compiled with this
! option.  It contains arc transition counts, value profile counts, and
! some summary information.
  
!  The full details of the file format is specified in 'gcov-io.h', and
  functions provided in that header file should be used to access the
  coverage files.
  
*************** File: gcc.info,  Node: Cross-profiling,
*** 47579,47624 ****
  ====================================================
  
  Running the program will cause profile output to be generated.  For each
! source file compiled with `-fprofile-arcs', an accompanying `.gcda'
! file will be placed in the object file directory. That implicitly
! requires running the program on the same system as it was built or
! having the same absolute directory structure on the target system. The
! program will try to create the needed directory structure, if it is not
! already present.
  
!  To support cross-profiling, a program compiled with `-fprofile-arcs'
  can relocate the data files based on two environment variables:
  
!    * GCOV_PREFIX contains the prefix to add to the absolute paths in
!      the object file. Prefix can be absolute, or relative.  The default
!      is no prefix.
  
!    * GCOV_PREFIX_STRIP indicates the how many initial directory names
!      to strip off the hardwired absolute paths. Default value is 0.
  
       _Note:_ If GCOV_PREFIX_STRIP is set without GCOV_PREFIX is
!      undefined,  then a relative path is made out of the hardwired
       absolute paths.
  
!  For example, if the object file `/user/build/foo.o' was built with
! `-fprofile-arcs', the final executable will try to create the data file
! `/user/build/foo.gcda' when running on the target system.  This will
  fail if the corresponding directory does not exist and it is unable to
  create it.  This can be overcome by, for example, setting the
! environment as `GCOV_PREFIX=/target/run' and `GCOV_PREFIX_STRIP=1'.
! Such a setting will name the data file `/target/run/build/foo.gcda'.
  
   You must move the data files to the expected directory tree in order to
! use them for profile directed optimizations (`-fprofile-use'), or to
! use the `gcov' tool.
  
  
  File: gcc.info,  Node: Gcov-tool,  Next: Gcov-dump,  Prev: Gcov,  Up: Top
  
! 11 `gcov-tool'--an Offline Gcda Profile Processing Tool
  *******************************************************
  
! `gcov-tool' is a tool you can use in conjunction with GCC to manipulate
  or process gcda profile files offline.
  
  * Menu:
--- 47161,47206 ----
  ====================================================
  
  Running the program will cause profile output to be generated.  For each
! source file compiled with '-fprofile-arcs', an accompanying '.gcda' file
! will be placed in the object file directory.  That implicitly requires
! running the program on the same system as it was built or having the
! same absolute directory structure on the target system.  The program
! will try to create the needed directory structure, if it is not already
! present.
  
!  To support cross-profiling, a program compiled with '-fprofile-arcs'
  can relocate the data files based on two environment variables:
  
!    * GCOV_PREFIX contains the prefix to add to the absolute paths in the
!      object file.  Prefix can be absolute, or relative.  The default is
!      no prefix.
  
!    * GCOV_PREFIX_STRIP indicates the how many initial directory names to
!      strip off the hardwired absolute paths.  Default value is 0.
  
       _Note:_ If GCOV_PREFIX_STRIP is set without GCOV_PREFIX is
!      undefined, then a relative path is made out of the hardwired
       absolute paths.
  
!  For example, if the object file '/user/build/foo.o' was built with
! '-fprofile-arcs', the final executable will try to create the data file
! '/user/build/foo.gcda' when running on the target system.  This will
  fail if the corresponding directory does not exist and it is unable to
  create it.  This can be overcome by, for example, setting the
! environment as 'GCOV_PREFIX=/target/run' and 'GCOV_PREFIX_STRIP=1'.
! Such a setting will name the data file '/target/run/build/foo.gcda'.
  
   You must move the data files to the expected directory tree in order to
! use them for profile directed optimizations ('-fprofile-use'), or to use
! the 'gcov' tool.
  
  
  File: gcc.info,  Node: Gcov-tool,  Next: Gcov-dump,  Prev: Gcov,  Up: Top
  
! 11 'gcov-tool'--an Offline Gcda Profile Processing Tool
  *******************************************************
  
! 'gcov-tool' is a tool you can use in conjunction with GCC to manipulate
  or process gcda profile files offline.
  
  * Menu:
*************** or process gcda profile files offline.
*** 47629,47649 ****
  
  File: gcc.info,  Node: Gcov-tool Intro,  Next: Invoking Gcov-tool,  Up: Gcov-tool
  
! 11.1 Introduction to `gcov-tool'
  ================================
  
! `gcov-tool' is an offline tool to process gcc's gcda profile files.
  
   Current gcov-tool supports the following functionalities:
  
     * merge two sets of profiles with weights.
  
!    * read one set of profile and rewrite profile contents. One can
       scale or normalize the count values.
  
   Examples of the use cases for this tool are:
!    * Collect the profiles for different set of inputs, and use this
!      tool to merge them. One can specify the weight to factor in the
       relative importance of each input.
  
     * Rewrite the profile after removing a subset of the gcda files,
--- 47211,47231 ----
  
  File: gcc.info,  Node: Gcov-tool Intro,  Next: Invoking Gcov-tool,  Up: Gcov-tool
  
! 11.1 Introduction to 'gcov-tool'
  ================================
  
! 'gcov-tool' is an offline tool to process gcc's gcda profile files.
  
   Current gcov-tool supports the following functionalities:
  
     * merge two sets of profiles with weights.
  
!    * read one set of profile and rewrite profile contents.  One can
       scale or normalize the count values.
  
   Examples of the use cases for this tool are:
!    * Collect the profiles for different set of inputs, and use this tool
!      to merge them.  One can specify the weight to factor in the
       relative importance of each input.
  
     * Rewrite the profile after removing a subset of the gcda files,
*************** File: gcc.info,  Node: Gcov-tool Intro,
*** 47653,47775 ****
       the majority code as the runtime library.
  
   Note that for the merging operation, this profile generated offline may
! contain slight different values from the online merged profile. Here are
! a list of typical differences:
  
     * histogram difference: This offline tool recomputes the histogram
!      after merging the counters. The resulting histogram, therefore, is
!      precise. The online merging does not have this capability - the
       histogram is merged from two histograms and the result is an
       approximation.
  
     * summary checksum difference: Summary checksum uses a CRC32
!      operation. The value depends on the link list order of gcov-info
!      objects. This order is different in gcov-tool from that in the
!      online merge. It's expected to have different summary checksums.
       It does not really matter as the compiler does not use this
       checksum anywhere.
  
     * value profile counter values difference: Some counter values for
!      value profile are runtime dependent, like heap addresses. It's
       normal to see some difference in these kind of counters.
  
  
  File: gcc.info,  Node: Invoking Gcov-tool,  Prev: Gcov-tool Intro,  Up: Gcov-tool
  
! 11.2 Invoking `gcov-tool'
  =========================
  
       gcov-tool [GLOBAL-OPTIONS] SUB_COMMAND [SUB_COMMAND-OPTIONS] PROFILE_DIR
  
!  `gcov-tool' accepts the following options:
  
! `-h'
! `--help'
!      Display help about using `gcov-tool' (on the standard output), and
       exit without doing any further processing.
  
! `-v'
! `--version'
!      Display the `gcov-tool' version number (on the standard output),
       and exit without doing any further processing.
  
! `merge'
       Merge two profile directories.
!     `-o DIRECTORY'
!     `--output DIRECTORY'
!           Set the output profile directory. Default output directory
            name is MERGED_PROFILE.
  
!     `-v'
!     `--verbose'
            Set the verbose mode.
  
!     `-w W1,W2'
!     `--weight W1,W2'
            Set the merge weights of the DIRECTORY1 and DIRECTORY2,
!           respectively. The default weights are 1 for both.
  
! `rewrite'
       Read the specified profile directory and rewrite to a new
       directory.
!     `-n LONG_LONG_VALUE'
!     `--normalize <long_long_value>'
!           Normalize the profile. The specified value is the max counter
            value in the new profile.
  
!     `-o DIRECTORY'
!     `--output DIRECTORY'
!           Set the output profile directory. Default output name is
            REWRITE_PROFILE.
  
!     `-s FLOAT_OR_SIMPLE-FRAC_VALUE'
!     `--scale FLOAT_OR_SIMPLE-FRAC_VALUE'
!           Scale the profile counters. The specified value can be in
            floating point value, or simple fraction value form, such 1,
            2, 2/3, and 5/3.
  
!     `-v'
!     `--verbose'
            Set the verbose mode.
  
! `overlap'
       Computer the overlap score between the two specified profile
       directories.  The overlap score is computed based on the arc
!      profiles. It is defined as the sum of min (p1_counter[i] /
       p1_sum_all, p2_counter[i] / p2_sum_all), for all arc counter i,
       where p1_counter[i] and p2_counter[i] are two matched counters and
       p1_sum_all and p2_sum_all are the sum of counter values in profile
       1 and profile 2, respectively.
  
!     `-f'
!     `--function'
            Print function level overlap score.
  
!     `-F'
!     `--fullname'
            Print full gcda filename.
  
!     `-h'
!     `--hotonly'
            Only print info for hot objects/functions.
  
!     `-o'
!     `--object'
            Print object level overlap score.
  
!     `-t FLOAT'
!     `--hot_threshold <float>'
            Set the threshold for hot counter value.
  
!     `-v'
!     `--verbose'
            Set the verbose mode.
  
- 
  
  File: gcc.info,  Node: Gcov-dump,  Next: Trouble,  Prev: Gcov-tool,  Up: Top
  
! 12 `gcov-dump'--an Offline Gcda and Gcno Profile Dump Tool
  **********************************************************
  
  * Menu:
--- 47235,47358 ----
       the majority code as the runtime library.
  
   Note that for the merging operation, this profile generated offline may
! contain slight different values from the online merged profile.  Here
! are a list of typical differences:
  
     * histogram difference: This offline tool recomputes the histogram
!      after merging the counters.  The resulting histogram, therefore, is
!      precise.  The online merging does not have this capability - the
       histogram is merged from two histograms and the result is an
       approximation.
  
     * summary checksum difference: Summary checksum uses a CRC32
!      operation.  The value depends on the link list order of gcov-info
!      objects.  This order is different in gcov-tool from that in the
!      online merge.  It's expected to have different summary checksums.
       It does not really matter as the compiler does not use this
       checksum anywhere.
  
     * value profile counter values difference: Some counter values for
!      value profile are runtime dependent, like heap addresses.  It's
       normal to see some difference in these kind of counters.
  
  
  File: gcc.info,  Node: Invoking Gcov-tool,  Prev: Gcov-tool Intro,  Up: Gcov-tool
  
! 11.2 Invoking 'gcov-tool'
  =========================
  
       gcov-tool [GLOBAL-OPTIONS] SUB_COMMAND [SUB_COMMAND-OPTIONS] PROFILE_DIR
  
!  'gcov-tool' accepts the following options:
  
! '-h'
! '--help'
!      Display help about using 'gcov-tool' (on the standard output), and
       exit without doing any further processing.
  
! '-v'
! '--version'
!      Display the 'gcov-tool' version number (on the standard output),
       and exit without doing any further processing.
  
! 'merge'
       Merge two profile directories.
! 
!      '-o DIRECTORY'
!      '--output DIRECTORY'
!           Set the output profile directory.  Default output directory
            name is MERGED_PROFILE.
  
!      '-v'
!      '--verbose'
            Set the verbose mode.
  
!      '-w W1,W2'
!      '--weight W1,W2'
            Set the merge weights of the DIRECTORY1 and DIRECTORY2,
!           respectively.  The default weights are 1 for both.
  
! 'rewrite'
       Read the specified profile directory and rewrite to a new
       directory.
! 
!      '-n LONG_LONG_VALUE'
!      '--normalize <long_long_value>'
!           Normalize the profile.  The specified value is the max counter
            value in the new profile.
  
!      '-o DIRECTORY'
!      '--output DIRECTORY'
!           Set the output profile directory.  Default output name is
            REWRITE_PROFILE.
  
!      '-s FLOAT_OR_SIMPLE-FRAC_VALUE'
!      '--scale FLOAT_OR_SIMPLE-FRAC_VALUE'
!           Scale the profile counters.  The specified value can be in
            floating point value, or simple fraction value form, such 1,
            2, 2/3, and 5/3.
  
!      '-v'
!      '--verbose'
            Set the verbose mode.
  
! 'overlap'
       Computer the overlap score between the two specified profile
       directories.  The overlap score is computed based on the arc
!      profiles.  It is defined as the sum of min (p1_counter[i] /
       p1_sum_all, p2_counter[i] / p2_sum_all), for all arc counter i,
       where p1_counter[i] and p2_counter[i] are two matched counters and
       p1_sum_all and p2_sum_all are the sum of counter values in profile
       1 and profile 2, respectively.
  
!      '-f'
!      '--function'
            Print function level overlap score.
  
!      '-F'
!      '--fullname'
            Print full gcda filename.
  
!      '-h'
!      '--hotonly'
            Only print info for hot objects/functions.
  
!      '-o'
!      '--object'
            Print object level overlap score.
  
!      '-t FLOAT'
!      '--hot_threshold <float>'
            Set the threshold for hot counter value.
  
!      '-v'
!      '--verbose'
            Set the verbose mode.
  
  
  File: gcc.info,  Node: Gcov-dump,  Next: Trouble,  Prev: Gcov-tool,  Up: Top
  
! 12 'gcov-dump'--an Offline Gcda and Gcno Profile Dump Tool
  **********************************************************
  
  * Menu:
*************** File: gcc.info,  Node: Gcov-dump,  Next:
*** 47780,47821 ****
  
  File: gcc.info,  Node: Gcov-dump Intro,  Next: Invoking Gcov-dump,  Up: Gcov-dump
  
! 12.1 Introduction to `gcov-dump'
  ================================
  
! `gcov-dump' is a tool you can use in conjunction with GCC to dump
  content of gcda and gcno profile files offline.
  
  
  File: gcc.info,  Node: Invoking Gcov-dump,  Prev: Gcov-dump Intro,  Up: Gcov-dump
  
! 12.2 Invoking `gcov-dump'
  =========================
  
       Usage: gcov-dump [OPTION] ... GCOVFILES
  
!  `gcov-dump' accepts the following options:
  
! `-h'
! `--help'
!      Display help about using `gcov-dump' (on the standard output), and
       exit without doing any further processing.
  
! `-l'
! `--long'
       Dump content of records.
  
! `-p'
! `--positions'
       Dump positions of records.
  
! `-v'
! `--version'
!      Display the `gcov-dump' version number (on the standard output),
       and exit without doing any further processing.
  
! `-w'
! `--working-sets'
       Dump working set computed from summary.
  
  
--- 47363,47404 ----
  
  File: gcc.info,  Node: Gcov-dump Intro,  Next: Invoking Gcov-dump,  Up: Gcov-dump
  
! 12.1 Introduction to 'gcov-dump'
  ================================
  
! 'gcov-dump' is a tool you can use in conjunction with GCC to dump
  content of gcda and gcno profile files offline.
  
  
  File: gcc.info,  Node: Invoking Gcov-dump,  Prev: Gcov-dump Intro,  Up: Gcov-dump
  
! 12.2 Invoking 'gcov-dump'
  =========================
  
       Usage: gcov-dump [OPTION] ... GCOVFILES
  
!  'gcov-dump' accepts the following options:
  
! '-h'
! '--help'
!      Display help about using 'gcov-dump' (on the standard output), and
       exit without doing any further processing.
  
! '-l'
! '--long'
       Dump content of records.
  
! '-p'
! '--positions'
       Dump positions of records.
  
! '-v'
! '--version'
!      Display the 'gcov-dump' version number (on the standard output),
       and exit without doing any further processing.
  
! '-w'
! '--working-sets'
       Dump working set computed from summary.
  
  
*************** File: gcc.info,  Node: Trouble,  Next: B
*** 47824,47832 ****
  13 Known Causes of Trouble with GCC
  ***********************************
  
! This section describes known problems that affect users of GCC.  Most
! of these are not GCC bugs per se--if they were, we would fix them.  But
! the result for a user may be like the result of a bug.
  
   Some of these problems are due to bugs in other software, some are
  missing features that are too much work to add, and some are places
--- 47407,47415 ----
  13 Known Causes of Trouble with GCC
  ***********************************
  
! This section describes known problems that affect users of GCC.  Most of
! these are not GCC bugs per se--if they were, we would fix them.  But the
! result for a user may be like the result of a bug.
  
   Some of these problems are due to bugs in other software, some are
  missing features that are too much work to add, and some are places
*************** File: gcc.info,  Node: Actual Bugs,  Nex
*** 47854,47862 ****
  13.1 Actual Bugs We Haven't Fixed Yet
  =====================================
  
!    * The `fixincludes' script interacts badly with automounters; if the
       directory of system header files is automounted, it tends to be
!      unmounted while `fixincludes' is running.  This would seem to be a
       bug in the automounter.  We don't know any good way to work around
       it.
  
--- 47437,47445 ----
  13.1 Actual Bugs We Haven't Fixed Yet
  =====================================
  
!    * The 'fixincludes' script interacts badly with automounters; if the
       directory of system header files is automounted, it tends to be
!      unmounted while 'fixincludes' is running.  This would seem to be a
       bug in the automounter.  We don't know any good way to work around
       it.
  
*************** File: gcc.info,  Node: Interoperation,
*** 47867,47878 ****
  ===================
  
  This section lists various difficulties encountered in using GCC
! together with other compilers or with the assemblers, linkers,
! libraries and debuggers on certain systems.
  
     * On many platforms, GCC supports a different ABI for C++ than do
!      other compilers, so the object files compiled by GCC cannot be
!      used with object files generated by another C++ compiler.
  
       An area where the difference is most apparent is name mangling.
       The use of different name mangling is intentional, to protect you
--- 47450,47461 ----
  ===================
  
  This section lists various difficulties encountered in using GCC
! together with other compilers or with the assemblers, linkers, libraries
! and debuggers on certain systems.
  
     * On many platforms, GCC supports a different ABI for C++ than do
!      other compilers, so the object files compiled by GCC cannot be used
!      with object files generated by another C++ compiler.
  
       An area where the difference is most apparent is name mangling.
       The use of different name mangling is intentional, to protect you
*************** libraries and debuggers on certain syste
*** 47889,47902 ****
       profiling causes static variable destructors (currently used only
       in C++) not to be run.
  
!    * On a SPARC, GCC aligns all values of type `double' on an 8-byte
!      boundary, and it expects every `double' to be so aligned.  The Sun
!      compiler usually gives `double' values 8-byte alignment, with one
!      exception: function arguments of type `double' may not be aligned.
  
       As a result, if a function compiled with Sun CC takes the address
!      of an argument of type `double' and passes this pointer of type
!      `double *' to a function compiled with GCC, dereferencing the
       pointer may cause a fatal signal.
  
       One way to solve this problem is to compile your entire program
--- 47472,47485 ----
       profiling causes static variable destructors (currently used only
       in C++) not to be run.
  
!    * On a SPARC, GCC aligns all values of type 'double' on an 8-byte
!      boundary, and it expects every 'double' to be so aligned.  The Sun
!      compiler usually gives 'double' values 8-byte alignment, with one
!      exception: function arguments of type 'double' may not be aligned.
  
       As a result, if a function compiled with Sun CC takes the address
!      of an argument of type 'double' and passes this pointer of type
!      'double *' to a function compiled with GCC, dereferencing the
       pointer may cause a fatal signal.
  
       One way to solve this problem is to compile your entire program
*************** libraries and debuggers on certain syste
*** 47904,47911 ****
       compiled with Sun CC to copy the argument into a local variable;
       local variables are always properly aligned.  A third solution is
       to modify the function that uses the pointer to dereference it via
!      the following function `access_double' instead of directly with
!      `*':
  
            inline double
            access_double (double *unaligned_ptr)
--- 47487,47494 ----
       compiled with Sun CC to copy the argument into a local variable;
       local variables are always properly aligned.  A third solution is
       to modify the function that uses the pointer to dereference it via
!      the following function 'access_double' instead of directly with
!      '*':
  
            inline double
            access_double (double *unaligned_ptr)
*************** libraries and debuggers on certain syste
*** 47923,47949 ****
  
       Storing into the pointer can be done likewise with the same union.
  
!    * On Solaris, the `malloc' function in the `libmalloc.a' library may
       allocate memory that is only 4 byte aligned.  Since GCC on the
       SPARC assumes that doubles are 8 byte aligned, this may result in a
       fatal signal if doubles are stored in memory allocated by the
!      `libmalloc.a' library.
  
!      The solution is to not use the `libmalloc.a' library.  Use instead
!      `malloc' and related functions from `libc.a'; they do not have
!      this problem.
  
     * On the HP PA machine, ADB sometimes fails to work on functions
       compiled with GCC.  Specifically, it fails to work on functions
!      that use `alloca' or variable-size arrays.  This is because GCC
       doesn't generate HP-UX unwind descriptors for such functions.  It
       may even be impossible to generate them.
  
!    * Debugging (`-g') is not supported on the HP PA machine, unless you
       use the preliminary GNU tools.
  
!    * Taking the address of a label may generate errors from the HP-UX
!      PA assembler.  GAS for the PA does not have this problem.
  
     * Using floating point parameters for indirect calls to static
       functions will not work when using the HP assembler.  There simply
--- 47506,47532 ----
  
       Storing into the pointer can be done likewise with the same union.
  
!    * On Solaris, the 'malloc' function in the 'libmalloc.a' library may
       allocate memory that is only 4 byte aligned.  Since GCC on the
       SPARC assumes that doubles are 8 byte aligned, this may result in a
       fatal signal if doubles are stored in memory allocated by the
!      'libmalloc.a' library.
  
!      The solution is to not use the 'libmalloc.a' library.  Use instead
!      'malloc' and related functions from 'libc.a'; they do not have this
!      problem.
  
     * On the HP PA machine, ADB sometimes fails to work on functions
       compiled with GCC.  Specifically, it fails to work on functions
!      that use 'alloca' or variable-size arrays.  This is because GCC
       doesn't generate HP-UX unwind descriptors for such functions.  It
       may even be impossible to generate them.
  
!    * Debugging ('-g') is not supported on the HP PA machine, unless you
       use the preliminary GNU tools.
  
!    * Taking the address of a label may generate errors from the HP-UX PA
!      assembler.  GAS for the PA does not have this problem.
  
     * Using floating point parameters for indirect calls to static
       functions will not work when using the HP assembler.  There simply
*************** libraries and debuggers on certain syste
*** 47954,47965 ****
     * In extremely rare cases involving some very large functions you may
       receive errors from the HP linker complaining about an out of
       bounds unconditional branch offset.  This used to occur more often
!      in previous versions of GCC, but is now exceptionally rare.  If
!      you should run into it, you can work around by making your
!      function smaller.
  
!    * GCC compiled code sometimes emits warnings from the HP-UX
!      assembler of the form:
  
            (warning) Use of GR3 when
              frame >= 8192 may cause conflict.
--- 47537,47548 ----
     * In extremely rare cases involving some very large functions you may
       receive errors from the HP linker complaining about an out of
       bounds unconditional branch offset.  This used to occur more often
!      in previous versions of GCC, but is now exceptionally rare.  If you
!      should run into it, you can work around by making your function
!      smaller.
  
!    * GCC compiled code sometimes emits warnings from the HP-UX assembler
!      of the form:
  
            (warning) Use of GR3 when
              frame >= 8192 may cause conflict.
*************** libraries and debuggers on certain syste
*** 47968,48011 ****
  
     * In extremely rare cases involving some very large functions you may
       receive errors from the AIX Assembler complaining about a
!      displacement that is too large.  If you should run into it, you
!      can work around by making your function smaller.
  
!    * The `libstdc++.a' library in GCC relies on the SVR4 dynamic linker
       semantics which merges global symbols between libraries and
       applications, especially necessary for C++ streams functionality.
       This is not the default behavior of AIX shared libraries and
!      dynamic linking.  `libstdc++.a' is built on AIX with
       "runtime-linking" enabled so that symbol merging can occur.  To
!      utilize this feature, the application linked with `libstdc++.a'
!      must include the `-Wl,-brtl' flag on the link line.  G++ cannot
!      impose this because this option may interfere with the semantics
!      of the user program and users may not always use `g++' to link his
!      or her application.  Applications are not required to use the
!      `-Wl,-brtl' flag on the link line--the rest of the `libstdc++.a'
!      library which is not dependent on the symbol merging semantics
!      will continue to function correctly.
  
     * An application can interpose its own definition of functions for
!      functions invoked by `libstdc++.a' with "runtime-linking" enabled
       on AIX.  To accomplish this the application must be linked with
       "runtime-linking" option and the functions explicitly must be
!      exported by the application (`-Wl,-brtl,-bE:exportfile').
  
     * AIX on the RS/6000 provides support (NLS) for environments outside
       of the United States.  Compilers and assemblers use NLS to support
       locale-specific representations of various objects including
!      floating-point numbers (`.' vs `,' for separating decimal
       fractions).  There have been problems reported where the library
       linked with GCC does not produce the same floating-point formats
       that the assembler accepts.  If you have this problem, set the
!      `LANG' environment variable to `C' or `En_US'.
  
!    * Even if you specify `-fdollars-in-identifiers', you cannot
!      successfully use `$' in identifiers on the RS/6000 due to a
       restriction in the IBM assembler.  GAS supports these identifiers.
  
- 
  
  File: gcc.info,  Node: Incompatibilities,  Next: Fixed Headers,  Prev: Interoperation,  Up: Trouble
  
--- 47551,47593 ----
  
     * In extremely rare cases involving some very large functions you may
       receive errors from the AIX Assembler complaining about a
!      displacement that is too large.  If you should run into it, you can
!      work around by making your function smaller.
  
!    * The 'libstdc++.a' library in GCC relies on the SVR4 dynamic linker
       semantics which merges global symbols between libraries and
       applications, especially necessary for C++ streams functionality.
       This is not the default behavior of AIX shared libraries and
!      dynamic linking.  'libstdc++.a' is built on AIX with
       "runtime-linking" enabled so that symbol merging can occur.  To
!      utilize this feature, the application linked with 'libstdc++.a'
!      must include the '-Wl,-brtl' flag on the link line.  G++ cannot
!      impose this because this option may interfere with the semantics of
!      the user program and users may not always use 'g++' to link his or
!      her application.  Applications are not required to use the
!      '-Wl,-brtl' flag on the link line--the rest of the 'libstdc++.a'
!      library which is not dependent on the symbol merging semantics will
!      continue to function correctly.
  
     * An application can interpose its own definition of functions for
!      functions invoked by 'libstdc++.a' with "runtime-linking" enabled
       on AIX.  To accomplish this the application must be linked with
       "runtime-linking" option and the functions explicitly must be
!      exported by the application ('-Wl,-brtl,-bE:exportfile').
  
     * AIX on the RS/6000 provides support (NLS) for environments outside
       of the United States.  Compilers and assemblers use NLS to support
       locale-specific representations of various objects including
!      floating-point numbers ('.' vs ',' for separating decimal
       fractions).  There have been problems reported where the library
       linked with GCC does not produce the same floating-point formats
       that the assembler accepts.  If you have this problem, set the
!      'LANG' environment variable to 'C' or 'En_US'.
  
!    * Even if you specify '-fdollars-in-identifiers', you cannot
!      successfully use '$' in identifiers on the RS/6000 due to a
       restriction in the IBM assembler.  GAS supports these identifiers.
  
  
  File: gcc.info,  Node: Incompatibilities,  Next: Fixed Headers,  Prev: Interoperation,  Up: Trouble
  
*************** There are several noteworthy incompatibi
*** 48019,48041 ****
       identical-looking string constants are used, GCC stores only one
       copy of the string.
  
!      One consequence is that you cannot call `mktemp' with a string
!      constant argument.  The function `mktemp' always alters the string
       its argument points to.
  
!      Another consequence is that `sscanf' does not work on some very
!      old systems when passed a string constant as its format control
!      string or input.  This is because `sscanf' incorrectly tries to
!      write into the string constant.  Likewise `fscanf' and `scanf'.
  
       The solution to these problems is to change the program to use
!      `char'-array variables with initialization strings for these
       purposes instead of string constants.
  
!    * `-2147483648' is positive.
  
!      This is because 2147483648 cannot fit in the type `int', so
!      (following the ISO C rules) its data type is `unsigned long int'.
       Negating this value yields 2147483648 again.
  
     * GCC does not substitute macro arguments when they appear inside of
--- 47601,47623 ----
       identical-looking string constants are used, GCC stores only one
       copy of the string.
  
!      One consequence is that you cannot call 'mktemp' with a string
!      constant argument.  The function 'mktemp' always alters the string
       its argument points to.
  
!      Another consequence is that 'sscanf' does not work on some very old
!      systems when passed a string constant as its format control string
!      or input.  This is because 'sscanf' incorrectly tries to write into
!      the string constant.  Likewise 'fscanf' and 'scanf'.
  
       The solution to these problems is to change the program to use
!      'char'-array variables with initialization strings for these
       purposes instead of string constants.
  
!    * '-2147483648' is positive.
  
!      This is because 2147483648 cannot fit in the type 'int', so
!      (following the ISO C rules) its data type is 'unsigned long int'.
       Negating this value yields 2147483648 again.
  
     * GCC does not substitute macro arguments when they appear inside of
*************** There are several noteworthy incompatibi
*** 48043,48052 ****
  
            #define foo(a) "a"
  
!      will produce output `"a"' regardless of what the argument A is.
  
!    * When you use `setjmp' and `longjmp', the only automatic variables
!      guaranteed to remain valid are those declared `volatile'.  This is
       a consequence of automatic register allocation.  Consider this
       function:
  
--- 47625,47634 ----
  
            #define foo(a) "a"
  
!      will produce output '"a"' regardless of what the argument A is.
  
!    * When you use 'setjmp' and 'longjmp', the only automatic variables
!      guaranteed to remain valid are those declared 'volatile'.  This is
       a consequence of automatic register allocation.  Consider this
       function:
  
*************** There are several noteworthy incompatibi
*** 48061,48076 ****
                return a;
  
              a = fun2 ();
!             /* `longjmp (j)' may occur in `fun3'. */
              return a + fun3 ();
            }
  
!      Here `a' may or may not be restored to its first value when the
!      `longjmp' occurs.  If `a' is allocated in a register, then its
       first value is restored; otherwise, it keeps the last value stored
       in it.
  
!      If you use the `-W' option with the `-O' option, you will get a
       warning when GCC thinks such a problem might be possible.
  
     * Programs that use preprocessing directives in the middle of macro
--- 47643,47658 ----
                return a;
  
              a = fun2 ();
!             /* 'longjmp (j)' may occur in 'fun3'. */
              return a + fun3 ();
            }
  
!      Here 'a' may or may not be restored to its first value when the
!      'longjmp' occurs.  If 'a' is allocated in a register, then its
       first value is restored; otherwise, it keeps the last value stored
       in it.
  
!      If you use the '-W' option with the '-O' option, you will get a
       warning when GCC thinks such a problem might be possible.
  
     * Programs that use preprocessing directives in the middle of macro
*************** There are several noteworthy incompatibi
*** 48091,48107 ****
       words, they have the same scope as any other declaration in the
       same place.
  
!      In some other C compilers, an `extern' declaration affects all the
       rest of the file even if it happens within a block.
  
!    * In traditional C, you can combine `long', etc., with a typedef
       name, as shown here:
  
            typedef int foo;
            typedef long foo bar;
  
!      In ISO C, this is not allowed: `long' and other type modifiers
!      require an explicit `int'.
  
     * PCC allows typedef names to be used as function parameters.
  
--- 47673,47689 ----
       words, they have the same scope as any other declaration in the
       same place.
  
!      In some other C compilers, an 'extern' declaration affects all the
       rest of the file even if it happens within a block.
  
!    * In traditional C, you can combine 'long', etc., with a typedef
       name, as shown here:
  
            typedef int foo;
            typedef long foo bar;
  
!      In ISO C, this is not allowed: 'long' and other type modifiers
!      require an explicit 'int'.
  
     * PCC allows typedef names to be used as function parameters.
  
*************** There are several noteworthy incompatibi
*** 48111,48125 ****
            typedef int foo;
            typedef foo foo;
  
!    * GCC treats all characters of identifiers as significant.
!      According to K&R-1 (2.2), "No more than the first eight characters
!      are significant, although more may be used.".  Also according to
!      K&R-1 (2.2), "An identifier is a sequence of letters and digits;
!      the first character must be a letter.  The underscore _ counts as
!      a letter.", but GCC also allows dollar signs in identifiers.
  
     * PCC allows whitespace in the middle of compound assignment
!      operators such as `+='.  GCC, following the ISO standard, does not
       allow this.
  
     * GCC complains about unterminated character constants inside of
--- 47693,47707 ----
            typedef int foo;
            typedef foo foo;
  
!    * GCC treats all characters of identifiers as significant.  According
!      to K&R-1 (2.2), "No more than the first eight characters are
!      significant, although more may be used.".  Also according to K&R-1
!      (2.2), "An identifier is a sequence of letters and digits; the
!      first character must be a letter.  The underscore _ counts as a
!      letter.", but GCC also allows dollar signs in identifiers.
  
     * PCC allows whitespace in the middle of compound assignment
!      operators such as '+='.  GCC, following the ISO standard, does not
       allow this.
  
     * GCC complains about unterminated character constants inside of
*************** There are several noteworthy incompatibi
*** 48133,48156 ****
            #endif
  
       The best solution to such a problem is to put the text into an
!      actual C comment delimited by `/*...*/'.
  
!    * Many user programs contain the declaration `long time ();'.  In the
       past, the system header files on many systems did not actually
!      declare `time', so it did not matter what type your program
!      declared it to return.  But in systems with ISO C headers, `time'
!      is declared to return `time_t', and if that is not the same as
!      `long', then `long time ();' is erroneous.
  
       The solution is to change your program to use appropriate system
!      headers (`<time.h>' on systems with ISO C headers) and not to
!      declare `time' if the system header files declare it, or failing
!      that to use `time_t' as the return type of `time'.
  
!    * When compiling functions that return `float', PCC converts it to a
!      double.  GCC actually returns a `float'.  If you are concerned
!      with PCC compatibility, you should declare your functions to return
!      `double'; you might as well say what you mean.
  
     * When compiling functions that return structures or unions, GCC
       output code normally uses a method different from that used on most
--- 47715,47738 ----
            #endif
  
       The best solution to such a problem is to put the text into an
!      actual C comment delimited by '/*...*/'.
  
!    * Many user programs contain the declaration 'long time ();'.  In the
       past, the system header files on many systems did not actually
!      declare 'time', so it did not matter what type your program
!      declared it to return.  But in systems with ISO C headers, 'time'
!      is declared to return 'time_t', and if that is not the same as
!      'long', then 'long time ();' is erroneous.
  
       The solution is to change your program to use appropriate system
!      headers ('<time.h>' on systems with ISO C headers) and not to
!      declare 'time' if the system header files declare it, or failing
!      that to use 'time_t' as the return type of 'time'.
  
!    * When compiling functions that return 'float', PCC converts it to a
!      double.  GCC actually returns a 'float'.  If you are concerned with
!      PCC compatibility, you should declare your functions to return
!      'double'; you might as well say what you mean.
  
     * When compiling functions that return structures or unions, GCC
       output code normally uses a method different from that used on most
*************** There are several noteworthy incompatibi
*** 48159,48168 ****
  
       The method used by GCC is as follows: a structure or union which is
       1, 2, 4 or 8 bytes long is returned like a scalar.  A structure or
!      union with any other size is stored into an address supplied by
!      the caller (usually in a special, fixed register, but on some
!      machines it is passed on the stack).  The target hook
!      `TARGET_STRUCT_VALUE_RTX' tells GCC where to pass this address.
  
       By contrast, PCC on most target machines returns structures and
       unions of any size by copying the data into an area of static
--- 47741,47750 ----
  
       The method used by GCC is as follows: a structure or union which is
       1, 2, 4 or 8 bytes long is returned like a scalar.  A structure or
!      union with any other size is stored into an address supplied by the
!      caller (usually in a special, fixed register, but on some machines
!      it is passed on the stack).  The target hook
!      'TARGET_STRUCT_VALUE_RTX' tells GCC where to pass this address.
  
       By contrast, PCC on most target machines returns structures and
       unions of any size by copying the data into an area of static
*************** There are several noteworthy incompatibi
*** 48177,48201 ****
       memory, but still returns small structures and unions in registers.
  
       You can tell GCC to use a compatible convention for all structure
!      and union returning with the option `-fpcc-struct-return'.
  
!    * GCC complains about program fragments such as `0x74ae-0x4000'
!      which appear to be two hexadecimal constants separated by the minus
       operator.  Actually, this string is a single "preprocessing token".
!      Each such token must correspond to one token in C.  Since this
!      does not, GCC prints an error message.  Although it may appear
!      obvious that what is meant is an operator and two values, the ISO
!      C standard specifically requires that this be treated as erroneous.
  
       A "preprocessing token" is a "preprocessing number" if it begins
       with a digit and is followed by letters, underscores, digits,
!      periods and `e+', `e-', `E+', `E-', `p+', `p-', `P+', or `P-'
!      character sequences.  (In strict C90 mode, the sequences `p+',
!      `p-', `P+' and `P-' cannot appear in preprocessing numbers.)
  
!      To make the above program fragment valid, place whitespace in
!      front of the minus sign.  This whitespace will end the
!      preprocessing number.
  
  
  File: gcc.info,  Node: Fixed Headers,  Next: Standard Libraries,  Prev: Incompatibilities,  Up: Trouble
--- 47759,47783 ----
       memory, but still returns small structures and unions in registers.
  
       You can tell GCC to use a compatible convention for all structure
!      and union returning with the option '-fpcc-struct-return'.
  
!    * GCC complains about program fragments such as '0x74ae-0x4000' which
!      appear to be two hexadecimal constants separated by the minus
       operator.  Actually, this string is a single "preprocessing token".
!      Each such token must correspond to one token in C.  Since this does
!      not, GCC prints an error message.  Although it may appear obvious
!      that what is meant is an operator and two values, the ISO C
!      standard specifically requires that this be treated as erroneous.
  
       A "preprocessing token" is a "preprocessing number" if it begins
       with a digit and is followed by letters, underscores, digits,
!      periods and 'e+', 'e-', 'E+', 'E-', 'p+', 'p-', 'P+', or 'P-'
!      character sequences.  (In strict C90 mode, the sequences 'p+',
!      'p-', 'P+' and 'P-' cannot appear in preprocessing numbers.)
  
!      To make the above program fragment valid, place whitespace in front
!      of the minus sign.  This whitespace will end the preprocessing
!      number.
  
  
  File: gcc.info,  Node: Fixed Headers,  Next: Standard Libraries,  Prev: Incompatibilities,  Up: Trouble
*************** incompatible with ISO C, and some depend
*** 48210,48223 ****
  compilers.
  
   Installing GCC automatically creates and installs the fixed header
! files, by running a program called `fixincludes'.  Normally, you don't
  need to pay attention to this.  But there are cases where it doesn't do
  the right thing automatically.
  
     * If you update the system's header files, such as by installing a
       new system version, the fixed header files of GCC are not
!      automatically updated.  They can be updated using the `mkheaders'
!      script installed in `LIBEXECDIR/gcc/TARGET/VERSION/install-tools/'.
  
     * On some systems, header file directories contain machine-specific
       symbolic links in certain places.  This makes it possible to share
--- 47792,47805 ----
  compilers.
  
   Installing GCC automatically creates and installs the fixed header
! files, by running a program called 'fixincludes'.  Normally, you don't
  need to pay attention to this.  But there are cases where it doesn't do
  the right thing automatically.
  
     * If you update the system's header files, such as by installing a
       new system version, the fixed header files of GCC are not
!      automatically updated.  They can be updated using the 'mkheaders'
!      script installed in 'LIBEXECDIR/gcc/TARGET/VERSION/install-tools/'.
  
     * On some systems, header file directories contain machine-specific
       symbolic links in certain places.  This makes it possible to share
*************** the right thing automatically.
*** 48226,48238 ****
  
       The programs that fix the header files do not understand this
       special way of using symbolic links; therefore, the directory of
!      fixed header files is good only for the machine model used to
!      build it.
  
       It is possible to make separate sets of fixed header files for the
!      different machine models, and arrange a structure of symbolic
!      links so as to use the proper set, but you'll have to do this by
!      hand.
  
  
  File: gcc.info,  Node: Standard Libraries,  Next: Disappointments,  Prev: Fixed Headers,  Up: Trouble
--- 47808,47819 ----
  
       The programs that fix the header files do not understand this
       special way of using symbolic links; therefore, the directory of
!      fixed header files is good only for the machine model used to build
!      it.
  
       It is possible to make separate sets of fixed header files for the
!      different machine models, and arrange a structure of symbolic links
!      so as to use the proper set, but you'll have to do this by hand.
  
  
  File: gcc.info,  Node: Standard Libraries,  Next: Disappointments,  Prev: Fixed Headers,  Up: Trouble
*************** what this means.  Beyond the library fac
*** 48246,48266 ****
  implementation, the rest of the C library is supplied by the vendor of
  the operating system.  If that C library doesn't conform to the C
  standards, then your programs might get warnings (especially when using
! `-Wall') that you don't expect.
  
!  For example, the `sprintf' function on SunOS 4.1.3 returns `char *'
! while the C standard says that `sprintf' returns an `int'.  The
! `fixincludes' program could make the prototype for this function match
  the Standard, but that would be wrong, since the function will still
! return `char *'.
  
   If you need a Standard compliant library, then you need to find one, as
! GCC does not provide one.  The GNU C library (called `glibc') provides
  ISO C, POSIX, BSD, SystemV and X/Open compatibility for GNU/Linux and
  HURD-based GNU systems; no recent version of it supports other systems,
  though some very old versions did.  Version 2.2 of the GNU C library
! includes nearly complete C99 support.  You could also ask your
! operating system vendor if newer libraries are available.
  
  
  File: gcc.info,  Node: Disappointments,  Next: C++ Misunderstandings,  Prev: Standard Libraries,  Up: Trouble
--- 47827,47847 ----
  implementation, the rest of the C library is supplied by the vendor of
  the operating system.  If that C library doesn't conform to the C
  standards, then your programs might get warnings (especially when using
! '-Wall') that you don't expect.
  
!  For example, the 'sprintf' function on SunOS 4.1.3 returns 'char *'
! while the C standard says that 'sprintf' returns an 'int'.  The
! 'fixincludes' program could make the prototype for this function match
  the Standard, but that would be wrong, since the function will still
! return 'char *'.
  
   If you need a Standard compliant library, then you need to find one, as
! GCC does not provide one.  The GNU C library (called 'glibc') provides
  ISO C, POSIX, BSD, SystemV and X/Open compatibility for GNU/Linux and
  HURD-based GNU systems; no recent version of it supports other systems,
  though some very old versions did.  Version 2.2 of the GNU C library
! includes nearly complete C99 support.  You could also ask your operating
! system vendor if newer libraries are available.
  
  
  File: gcc.info,  Node: Disappointments,  Next: C++ Misunderstandings,  Prev: Standard Libraries,  Up: Trouble
*************** way around them.
*** 48293,48319 ****
            int foo (struct mumble *x)
            { ... }
  
!      This code really is erroneous, because the scope of `struct
!      mumble' in the prototype is limited to the argument list
!      containing it.  It does not refer to the `struct mumble' defined
!      with file scope immediately below--they are two unrelated types
!      with similar names in different scopes.
  
!      But in the definition of `foo', the file-scope type is used
!      because that is available to be inherited.  Thus, the definition
!      and the prototype do not match, and you get an error.
  
       This behavior may seem silly, but it's what the ISO standard
       specifies.  It is easy enough for you to make your code work by
!      moving the definition of `struct mumble' above the prototype.
!      It's not worth being incompatible with ISO C just to avoid an
!      error for the example shown above.
  
     * Accesses to bit-fields even in volatile objects works by accessing
       larger objects, such as a byte or a word.  You cannot rely on what
!      size of object is accessed in order to read or write the
!      bit-field; it may even vary for a given bit-field according to the
!      precise usage.
  
       If you care about controlling the amount of memory that is
       accessed, use volatile but do not use bit-fields.
--- 47874,47900 ----
            int foo (struct mumble *x)
            { ... }
  
!      This code really is erroneous, because the scope of 'struct mumble'
!      in the prototype is limited to the argument list containing it.  It
!      does not refer to the 'struct mumble' defined with file scope
!      immediately below--they are two unrelated types with similar names
!      in different scopes.
  
!      But in the definition of 'foo', the file-scope type is used because
!      that is available to be inherited.  Thus, the definition and the
!      prototype do not match, and you get an error.
  
       This behavior may seem silly, but it's what the ISO standard
       specifies.  It is easy enough for you to make your code work by
!      moving the definition of 'struct mumble' above the prototype.  It's
!      not worth being incompatible with ISO C just to avoid an error for
!      the example shown above.
  
     * Accesses to bit-fields even in volatile objects works by accessing
       larger objects, such as a byte or a word.  You cannot rely on what
!      size of object is accessed in order to read or write the bit-field;
!      it may even vary for a given bit-field according to the precise
!      usage.
  
       If you care about controlling the amount of memory that is
       accessed, use volatile but do not use bit-fields.
*************** way around them.
*** 48326,48345 ****
       about.
  
       If new system header files are installed, nothing automatically
!      arranges to update the corrected header files.  They can be
!      updated using the `mkheaders' script installed in
!      `LIBEXECDIR/gcc/TARGET/VERSION/install-tools/'.
  
     * On 68000 and x86 systems, for instance, you can get paradoxical
       results if you test the precise values of floating point numbers.
       For example, you can find that a floating point value which is not
       a NaN is not equal to itself.  This results from the fact that the
!      floating point registers hold a few more bits of precision than
!      fit in a `double' in memory.  Compiled code moves values between
!      memory and floating point registers at its convenience, and moving
!      them into memory truncates them.
  
!      You can partially avoid this problem by using the `-ffloat-store'
       option (*note Optimize Options::).
  
     * On AIX and other platforms without weak symbol support, templates
--- 47907,47926 ----
       about.
  
       If new system header files are installed, nothing automatically
!      arranges to update the corrected header files.  They can be updated
!      using the 'mkheaders' script installed in
!      'LIBEXECDIR/gcc/TARGET/VERSION/install-tools/'.
  
     * On 68000 and x86 systems, for instance, you can get paradoxical
       results if you test the precise values of floating point numbers.
       For example, you can find that a floating point value which is not
       a NaN is not equal to itself.  This results from the fact that the
!      floating point registers hold a few more bits of precision than fit
!      in a 'double' in memory.  Compiled code moves values between memory
!      and floating point registers at its convenience, and moving them
!      into memory truncates them.
  
!      You can partially avoid this problem by using the '-ffloat-store'
       option (*note Optimize Options::).
  
     * On AIX and other platforms without weak symbol support, templates
*************** static member; you must also _define_ it
*** 48391,48409 ****
         static int bar;
       };
  
!  This declaration only establishes that the class `Foo' has an `int'
! named `Foo::bar', and a member function named `Foo::method'.  But you
! still need to define _both_ `method' and `bar' elsewhere.  According to
  the ISO standard, you must supply an initializer in one (and only one)
  source file, such as:
  
       int Foo::bar = 0;
  
   Other C++ compilers may not correctly implement the standard behavior.
! As a result, when you switch to `g++' from one of these compilers, you
! may discover that a program that appeared to work correctly in fact
! does not conform to the standard: `g++' reports as undefined symbols
! any static data members that lack definitions.
  
  
  File: gcc.info,  Node: Name lookup,  Next: Temporaries,  Prev: Static Definitions,  Up: C++ Misunderstandings
--- 47972,47990 ----
         static int bar;
       };
  
!  This declaration only establishes that the class 'Foo' has an 'int'
! named 'Foo::bar', and a member function named 'Foo::method'.  But you
! still need to define _both_ 'method' and 'bar' elsewhere.  According to
  the ISO standard, you must supply an initializer in one (and only one)
  source file, such as:
  
       int Foo::bar = 0;
  
   Other C++ compilers may not correctly implement the standard behavior.
! As a result, when you switch to 'g++' from one of these compilers, you
! may discover that a program that appeared to work correctly in fact does
! not conform to the standard: 'g++' reports as undefined symbols any
! static data members that lack definitions.
  
  
  File: gcc.info,  Node: Name lookup,  Next: Temporaries,  Prev: Static Definitions,  Up: C++ Misunderstandings
*************** looked up at the point of instantiation.
*** 48431,48450 ****
           static const int N;
         };
  
!  Here, the names `foo' and `N' appear in a context that does not depend
! on the type of `T'.  The compiler will thus require that they are
! defined in the context of use in the template, not only before the
! point of instantiation, and will here use `::foo(double)' and `A::N',
  respectively.  In particular, it will convert the integer value to a
! `double' when passing it to `::foo(double)'.
  
!  Conversely, `bar' and the call to `foo' in the fourth marked line are
! used in contexts that do depend on the type of `T', so they are only
  looked up at the point of instantiation, and you can provide
  declarations for them after declaring the template, but before
! instantiating it.  In particular, if you instantiate `A::f<int>', the
! last line will call an overloaded `::foo(int)' if one was provided,
! even if after the declaration of `struct A'.
  
   This distinction between lookup of dependent and non-dependent names is
  called two-stage (or dependent) name lookup.  G++ implements it since
--- 48012,48031 ----
           static const int N;
         };
  
!  Here, the names 'foo' and 'N' appear in a context that does not depend
! on the type of 'T'.  The compiler will thus require that they are
! defined in the context of use in the template, not only before the point
! of instantiation, and will here use '::foo(double)' and 'A::N',
  respectively.  In particular, it will convert the integer value to a
! 'double' when passing it to '::foo(double)'.
  
!  Conversely, 'bar' and the call to 'foo' in the fourth marked line are
! used in contexts that do depend on the type of 'T', so they are only
  looked up at the point of instantiation, and you can provide
  declarations for them after declaring the template, but before
! instantiating it.  In particular, if you instantiate 'A::f<int>', the
! last line will call an overloaded '::foo(int)' if one was provided, even
! if after the declaration of 'struct A'.
  
   This distinction between lookup of dependent and non-dependent names is
  called two-stage (or dependent) name lookup.  G++ implements it since
*************** different from non-template codes.  The
*** 48461,48481 ****
           int get_i() { return i; }
         };
  
!  In `get_i()', `i' is not used in a dependent context, so the compiler
! will look for a name declared at the enclosing namespace scope (which
! is the global scope here).  It will not look into the base class, since
! that is dependent and you may declare specializations of `Base' even
! after declaring `Derived', so the compiler can't really know what `i'
! would refer to.  If there is no global variable `i', then you will get
  an error message.
  
   In order to make it clear that you want the member of the base class,
  you need to defer lookup until instantiation time, at which the base
! class is known.  For this, you need to access `i' in a dependent
! context, by either using `this->i' (remember that `this' is of type
! `Derived<T>*', so is obviously dependent), or using `Base<T>::i'.
! Alternatively, `Base<T>::i' might be brought into scope by a
! `using'-declaration.
  
   Another, similar example involves calling member functions of a base
  class:
--- 48042,48062 ----
           int get_i() { return i; }
         };
  
!  In 'get_i()', 'i' is not used in a dependent context, so the compiler
! will look for a name declared at the enclosing namespace scope (which is
! the global scope here).  It will not look into the base class, since
! that is dependent and you may declare specializations of 'Base' even
! after declaring 'Derived', so the compiler can't really know what 'i'
! would refer to.  If there is no global variable 'i', then you will get
  an error message.
  
   In order to make it clear that you want the member of the base class,
  you need to defer lookup until instantiation time, at which the base
! class is known.  For this, you need to access 'i' in a dependent
! context, by either using 'this->i' (remember that 'this' is of type
! 'Derived<T>*', so is obviously dependent), or using 'Base<T>::i'.
! Alternatively, 'Base<T>::i' might be brought into scope by a
! 'using'-declaration.
  
   Another, similar example involves calling member functions of a base
  class:
*************** class:
*** 48488,48495 ****
             int g() { return f(); };
         };
  
!  Again, the call to `f()' is not dependent on template arguments (there
! are no arguments that depend on the type `T', and it is also not
  otherwise specified that the call should be in a dependent context).
  Thus a global declaration of such a function must be available, since
  the one in the base class is not visible until instantiation time.  The
--- 48069,48076 ----
             int g() { return f(); };
         };
  
!  Again, the call to 'f()' is not dependent on template arguments (there
! are no arguments that depend on the type 'T', and it is also not
  otherwise specified that the call should be in a dependent context).
  Thus a global declaration of such a function must be available, since
  the one in the base class is not visible until instantiation time.  The
*************** compiler will consequently produce the f
*** 48501,48522 ****
         x.cc:6: error: (if you use `-fpermissive', G++ will accept your code, but
            allowing the use of an undeclared name is deprecated)
  
!  To make the code valid either use `this->f()', or `Base<T>::f()'.
! Using the `-fpermissive' flag will also let the compiler accept the
  code, by marking all function calls for which no declaration is visible
  at the time of definition of the template for later lookup at
! instantiation time, as if it were a dependent call.  We do not
! recommend using `-fpermissive' to work around invalid code, and it will
! also only catch cases where functions in base classes are called, not
! where variables in base classes are used (as in the example above).
  
   Note that some compilers (including G++ versions prior to 3.4) get
  these examples wrong and accept above code without an error.  Those
  compilers do not implement two-stage name lookup correctly.
  
!  ---------- Footnotes ----------
  
!  (1) The C++ standard just uses the term "dependent" for names that
  depend on the type or value of template parameters.  This shorter term
  will also be used in the rest of this section.
  
--- 48082,48103 ----
         x.cc:6: error: (if you use `-fpermissive', G++ will accept your code, but
            allowing the use of an undeclared name is deprecated)
  
!  To make the code valid either use 'this->f()', or 'Base<T>::f()'.
! Using the '-fpermissive' flag will also let the compiler accept the
  code, by marking all function calls for which no declaration is visible
  at the time of definition of the template for later lookup at
! instantiation time, as if it were a dependent call.  We do not recommend
! using '-fpermissive' to work around invalid code, and it will also only
! catch cases where functions in base classes are called, not where
! variables in base classes are used (as in the example above).
  
   Note that some compilers (including G++ versions prior to 3.4) get
  these examples wrong and accept above code without an error.  Those
  compilers do not implement two-stage name lookup correctly.
  
!    ---------- Footnotes ----------
  
!    (1) The C++ standard just uses the term "dependent" for names that
  depend on the type or value of template parameters.  This shorter term
  will also be used in the rest of this section.
  
*************** It is dangerous to use pointers or refer
*** 48530,48544 ****
  temporary object.  The compiler may very well delete the object before
  you expect it to, leaving a pointer to garbage.  The most common place
  where this problem crops up is in classes like string classes,
! especially ones that define a conversion function to type `char *' or
! `const char *'--which is one reason why the standard `string' class
! requires you to call the `c_str' member function.  However, any class
! that returns a pointer to some internal structure is potentially
! subject to this problem.
  
!  For example, a program may use a function `strfunc' that returns
! `string' objects, and another function `charfunc' that operates on
! pointers to `char':
  
       string strfunc ();
       void charfunc (const char *);
--- 48111,48125 ----
  temporary object.  The compiler may very well delete the object before
  you expect it to, leaving a pointer to garbage.  The most common place
  where this problem crops up is in classes like string classes,
! especially ones that define a conversion function to type 'char *' or
! 'const char *'--which is one reason why the standard 'string' class
! requires you to call the 'c_str' member function.  However, any class
! that returns a pointer to some internal structure is potentially subject
! to this problem.
  
!  For example, a program may use a function 'strfunc' that returns
! 'string' objects, and another function 'charfunc' that operates on
! pointers to 'char':
  
       string strfunc ();
       void charfunc (const char *);
*************** pointers to `char':
*** 48554,48563 ****
       }
  
  In this situation, it may seem reasonable to save a pointer to the C
! string returned by the `c_str' member function and use that rather than
! call `c_str' repeatedly.  However, the temporary string created by the
! call to `strfunc' is destroyed after `p' is initialized, at which point
! `p' is left pointing to freed memory.
  
   Code like this may run successfully under some other compilers,
  particularly obsolete cfront-based compilers that delete temporaries
--- 48135,48144 ----
       }
  
  In this situation, it may seem reasonable to save a pointer to the C
! string returned by the 'c_str' member function and use that rather than
! call 'c_str' repeatedly.  However, the temporary string created by the
! call to 'strfunc' is destroyed after 'p' is initialized, at which point
! 'p' is left pointing to freed memory.
  
   Code like this may run successfully under some other compilers,
  particularly obsolete cfront-based compilers that delete temporaries
*************** such objects behave unspecified when bei
*** 48611,48627 ****
         d1 = d2;
       }
  
!  The C++ standard specifies that `Base::Base' is only called once when
  constructing or copy-constructing a Derived object.  It is unspecified
! whether `Base::operator=' is called more than once when the implicit
! copy-assignment for Derived objects is invoked (as it is inside `func'
  in the example).
  
   G++ implements the "intuitive" algorithm for copy-assignment: assign
  all direct bases, then assign all members.  In that algorithm, the
  virtual base subobject can be encountered more than once.  In the
! example, copying proceeds in the following order: `val', `name' (via
! `strdup'), `bval', and `name' again.
  
   If application code relies on copy-assignment, a user-defined
  copy-assignment operator removes any uncertainties.  With such an
--- 48192,48208 ----
         d1 = d2;
       }
  
!  The C++ standard specifies that 'Base::Base' is only called once when
  constructing or copy-constructing a Derived object.  It is unspecified
! whether 'Base::operator=' is called more than once when the implicit
! copy-assignment for Derived objects is invoked (as it is inside 'func'
  in the example).
  
   G++ implements the "intuitive" algorithm for copy-assignment: assign
  all direct bases, then assign all members.  In that algorithm, the
  virtual base subobject can be encountered more than once.  In the
! example, copying proceeds in the following order: 'val', 'name' (via
! 'strdup'), 'bval', and 'name' again.
  
   If application code relies on copy-assignment, a user-defined
  copy-assignment operator removes any uncertainties.  With such an
*************** do not make because we think GCC is bett
*** 48660,48676 ****
     * Warning when a non-void function value is ignored.
  
       C contains many standard functions that return a value that most
!      programs choose to ignore.  One obvious example is `printf'.
       Warning about this practice only leads the defensive programmer to
!      clutter programs with dozens of casts to `void'.  Such casts are
       required so frequently that they become visual noise.  Writing
       those casts becomes so automatic that they no longer convey useful
       information about the intentions of the programmer.  For functions
       where the return value should never be ignored, use the
!      `warn_unused_result' function attribute (*note Function
       Attributes::).
  
!    * Making `-fshort-enums' the default.
  
       This would cause storage layout to be incompatible with most other
       C compilers.  And it doesn't seem very important, given that you
--- 48241,48257 ----
     * Warning when a non-void function value is ignored.
  
       C contains many standard functions that return a value that most
!      programs choose to ignore.  One obvious example is 'printf'.
       Warning about this practice only leads the defensive programmer to
!      clutter programs with dozens of casts to 'void'.  Such casts are
       required so frequently that they become visual noise.  Writing
       those casts becomes so automatic that they no longer convey useful
       information about the intentions of the programmer.  For functions
       where the return value should never be ignored, use the
!      'warn_unused_result' function attribute (*note Function
       Attributes::).
  
!    * Making '-fshort-enums' the default.
  
       This would cause storage layout to be incompatible with most other
       C compilers.  And it doesn't seem very important, given that you
*************** do not make because we think GCC is bett
*** 48682,48697 ****
       "the ABI standard" says to do so.
  
       The ISO C standard leaves it up to the implementation whether a
!      bit-field declared plain `int' is signed or not.  This in effect
       creates two alternative dialects of C.
  
       The GNU C compiler supports both dialects; you can specify the
!      signed dialect with `-fsigned-bitfields' and the unsigned dialect
!      with `-funsigned-bitfields'.  However, this leaves open the
       question of which dialect to use by default.
  
       Currently, the preferred dialect makes plain bit-fields signed,
!      because this is simplest.  Since `int' is the same as `signed int'
       in every other context, it is cleanest for them to be the same in
       bit-fields as well.
  
--- 48263,48278 ----
       "the ABI standard" says to do so.
  
       The ISO C standard leaves it up to the implementation whether a
!      bit-field declared plain 'int' is signed or not.  This in effect
       creates two alternative dialects of C.
  
       The GNU C compiler supports both dialects; you can specify the
!      signed dialect with '-fsigned-bitfields' and the unsigned dialect
!      with '-funsigned-bitfields'.  However, this leaves open the
       question of which dialect to use by default.
  
       Currently, the preferred dialect makes plain bit-fields signed,
!      because this is simplest.  Since 'int' is the same as 'signed int'
       in every other context, it is cleanest for them to be the same in
       bit-fields as well.
  
*************** do not make because we think GCC is bett
*** 48712,48726 ****
  
       Many users appreciate the GNU C compiler because it provides an
       environment that is uniform across machines.  These users would be
!      inconvenienced if the compiler treated plain bit-fields
!      differently on certain machines.
  
       Occasionally users write programs intended only for a particular
       machine type.  On these occasions, the users would benefit if the
       GNU C compiler were to support by default the same dialect as the
       other compilers on that machine.  But such applications are rare.
!      And users writing a program to run on more than one type of
!      machine cannot possibly benefit from this kind of compatibility.
  
       This is why GCC does and will treat plain bit-fields in the same
       fashion on all types of machines (by default).
--- 48293,48307 ----
  
       Many users appreciate the GNU C compiler because it provides an
       environment that is uniform across machines.  These users would be
!      inconvenienced if the compiler treated plain bit-fields differently
!      on certain machines.
  
       Occasionally users write programs intended only for a particular
       machine type.  On these occasions, the users would benefit if the
       GNU C compiler were to support by default the same dialect as the
       other compilers on that machine.  But such applications are rare.
!      And users writing a program to run on more than one type of machine
!      cannot possibly benefit from this kind of compatibility.
  
       This is why GCC does and will treat plain bit-fields in the same
       fashion on all types of machines (by default).
*************** do not make because we think GCC is bett
*** 48735,48794 ****
       In this way, they write programs which have the same meaning in
       both C dialects.)
  
!    * Undefining `__STDC__' when `-ansi' is not used.
  
!      Currently, GCC defines `__STDC__' unconditionally.  This provides
       good results in practice.
  
!      Programmers normally use conditionals on `__STDC__' to ask whether
       it is safe to use certain features of ISO C, such as function
!      prototypes or ISO token concatenation.  Since plain `gcc' supports
       all the features of ISO C, the correct answer to these questions is
       "yes".
  
!      Some users try to use `__STDC__' to check for the availability of
!      certain library facilities.  This is actually incorrect usage in
!      an ISO C program, because the ISO C standard says that a conforming
!      freestanding implementation should define `__STDC__' even though it
!      does not have the library facilities.  `gcc -ansi -pedantic' is a
       conforming freestanding implementation, and it is therefore
!      required to define `__STDC__', even though it does not come with
!      an ISO C library.
  
!      Sometimes people say that defining `__STDC__' in a compiler that
       does not completely conform to the ISO C standard somehow violates
       the standard.  This is illogical.  The standard is a standard for
!      compilers that claim to support ISO C, such as `gcc -ansi'--not
!      for other compilers such as plain `gcc'.  Whatever the ISO C
!      standard says is relevant to the design of plain `gcc' without
!      `-ansi' only for pragmatic reasons, not as a requirement.
  
!      GCC normally defines `__STDC__' to be 1, and in addition defines
!      `__STRICT_ANSI__' if you specify the `-ansi' option, or a `-std'
       option for strict conformance to some version of ISO C.  On some
       hosts, system include files use a different convention, where
!      `__STDC__' is normally 0, but is 1 if the user specifies strict
       conformance to the C Standard.  GCC follows the host convention
       when processing system include files, but when processing user
       files it follows the usual GNU C convention.
  
!    * Undefining `__STDC__' in C++.
  
!      Programs written to compile with C++-to-C translators get the
!      value of `__STDC__' that goes with the C compiler that is
!      subsequently used.  These programs must test `__STDC__' to
!      determine what kind of C preprocessor that compiler uses: whether
!      they should concatenate tokens in the ISO C fashion or in the
!      traditional fashion.
  
!      These programs work properly with GNU C++ if `__STDC__' is defined.
       They would not work otherwise.
  
!      In addition, many header files are written to provide prototypes
!      in ISO C but not in traditional C.  Many of these header files can
!      work without change in C++ provided `__STDC__' is defined.  If
!      `__STDC__' is not defined, they will all fail, and will all need
!      to be changed to test explicitly for C++ as well.
  
     * Deleting "empty" loops.
  
--- 48316,48375 ----
       In this way, they write programs which have the same meaning in
       both C dialects.)
  
!    * Undefining '__STDC__' when '-ansi' is not used.
  
!      Currently, GCC defines '__STDC__' unconditionally.  This provides
       good results in practice.
  
!      Programmers normally use conditionals on '__STDC__' to ask whether
       it is safe to use certain features of ISO C, such as function
!      prototypes or ISO token concatenation.  Since plain 'gcc' supports
       all the features of ISO C, the correct answer to these questions is
       "yes".
  
!      Some users try to use '__STDC__' to check for the availability of
!      certain library facilities.  This is actually incorrect usage in an
!      ISO C program, because the ISO C standard says that a conforming
!      freestanding implementation should define '__STDC__' even though it
!      does not have the library facilities.  'gcc -ansi -pedantic' is a
       conforming freestanding implementation, and it is therefore
!      required to define '__STDC__', even though it does not come with an
!      ISO C library.
  
!      Sometimes people say that defining '__STDC__' in a compiler that
       does not completely conform to the ISO C standard somehow violates
       the standard.  This is illogical.  The standard is a standard for
!      compilers that claim to support ISO C, such as 'gcc -ansi'--not for
!      other compilers such as plain 'gcc'.  Whatever the ISO C standard
!      says is relevant to the design of plain 'gcc' without '-ansi' only
!      for pragmatic reasons, not as a requirement.
  
!      GCC normally defines '__STDC__' to be 1, and in addition defines
!      '__STRICT_ANSI__' if you specify the '-ansi' option, or a '-std'
       option for strict conformance to some version of ISO C.  On some
       hosts, system include files use a different convention, where
!      '__STDC__' is normally 0, but is 1 if the user specifies strict
       conformance to the C Standard.  GCC follows the host convention
       when processing system include files, but when processing user
       files it follows the usual GNU C convention.
  
!    * Undefining '__STDC__' in C++.
  
!      Programs written to compile with C++-to-C translators get the value
!      of '__STDC__' that goes with the C compiler that is subsequently
!      used.  These programs must test '__STDC__' to determine what kind
!      of C preprocessor that compiler uses: whether they should
!      concatenate tokens in the ISO C fashion or in the traditional
!      fashion.
  
!      These programs work properly with GNU C++ if '__STDC__' is defined.
       They would not work otherwise.
  
!      In addition, many header files are written to provide prototypes in
!      ISO C but not in traditional C.  Many of these header files can
!      work without change in C++ provided '__STDC__' is defined.  If
!      '__STDC__' is not defined, they will all fail, and will all need to
!      be changed to test explicitly for C++ as well.
  
     * Deleting "empty" loops.
  
*************** do not make because we think GCC is bett
*** 48798,48804 ****
       programs run any faster.
  
       However, the rationale here is that optimization of a nonempty loop
!      cannot produce an empty one. This held for carefully written C
       compiled with less powerful optimizers but is not always the case
       for carefully written C++ or with more powerful optimizers.  Thus
       GCC will remove operations from loops whenever it can determine
--- 48379,48385 ----
       programs run any faster.
  
       However, the rationale here is that optimization of a nonempty loop
!      cannot produce an empty one.  This held for carefully written C
       compiled with less powerful optimizers but is not always the case
       for carefully written C++ or with more powerful optimizers.  Thus
       GCC will remove operations from loops whenever it can determine
*************** do not make because we think GCC is bett
*** 48808,48814 ****
  
       Be aware of this when performing timing tests, for instance the
       following loop can be completely removed, provided
!      `some_expression' can provably not change any global state.
  
            {
               int sum = 0;
--- 48389,48395 ----
  
       Be aware of this when performing timing tests, for instance the
       following loop can be completely removed, provided
!      'some_expression' can provably not change any global state.
  
            {
               int sum = 0;
*************** do not make because we think GCC is bett
*** 48818,48824 ****
                  sum += some_expression;
            }
  
!      Even though `sum' is accumulated in the loop, no use is made of
       that summation, so the accumulation can be removed.
  
     * Making side effects happen in the same order as in some other
--- 48399,48405 ----
                  sum += some_expression;
            }
  
!      Even though 'sum' is accumulated in the loop, no use is made of
       that summation, so the accumulation can be removed.
  
     * Making side effects happen in the same order as in some other
*************** do not make because we think GCC is bett
*** 48835,48843 ****
  
       There is no guarantee (in either the C or the C++ standard language
       definitions) that the increments will be evaluated in any
!      particular order.  Either increment might happen first.  `func'
!      might get the arguments `2, 3', or it might get `3, 2', or even
!      `2, 2'.
  
     * Making certain warnings into errors by default.
  
--- 48416,48424 ----
  
       There is no guarantee (in either the C or the C++ standard language
       definitions) that the increments will be evaluated in any
!      particular order.  Either increment might happen first.  'func'
!      might get the arguments '2, 3', or it might get '3, 2', or even '2,
!      2'.
  
     * Making certain warnings into errors by default.
  
*************** do not make because we think GCC is bett
*** 48845,48856 ****
       produce an error message for a certain program.
  
       ISO C requires a "diagnostic" message for certain kinds of invalid
!      programs, but a warning is defined by GCC to count as a
!      diagnostic.  If GCC produces a warning but not an error, that is
!      correct ISO C support.  If testsuites call this "failure", they
!      should be run with the GCC option `-pedantic-errors', which will
!      turn these warnings into errors.
! 
  
  
  File: gcc.info,  Node: Warnings and Errors,  Prev: Non-bugs,  Up: Trouble
--- 48426,48436 ----
       produce an error message for a certain program.
  
       ISO C requires a "diagnostic" message for certain kinds of invalid
!      programs, but a warning is defined by GCC to count as a diagnostic.
!      If GCC produces a warning but not an error, that is correct ISO C
!      support.  If testsuites call this "failure", they should be run
!      with the GCC option '-pedantic-errors', which will turn these
!      warnings into errors.
  
  
  File: gcc.info,  Node: Warnings and Errors,  Prev: Non-bugs,  Up: Trouble
*************** warnings.  Each kind has a different pur
*** 48868,48890 ****
       "Warnings" report other unusual conditions in your code that _may_
       indicate a problem, although compilation can (and does) proceed.
       Warning messages also report the source file name and line number,
!      but include the text `warning:' to distinguish them from error
       messages.
  
   Warnings may indicate danger points where you should check to make sure
  that your program really does what you intend; or the use of obsolete
  features; or the use of nonstandard features of GNU C or C++.  Many
! warnings are issued only if you ask for them, with one of the `-W'
! options (for instance, `-Wall' requests a variety of useful warnings).
  
   GCC always tries to compile your program if possible; it never
  gratuitously rejects a program whose meaning is clear merely because
  (for instance) it fails to conform to a standard.  In some cases,
  however, the C and C++ standards specify that certain extensions are
  forbidden, and a diagnostic _must_ be issued by a conforming compiler.
! The `-pedantic' option tells GCC to issue warnings in such cases;
! `-pedantic-errors' says to make them errors instead.  This does not
! mean that _all_ non-ISO constructs get warnings or errors.
  
   *Note Options to Request or Suppress Warnings: Warning Options, for
  more detail on these and related command-line options.
--- 48448,48470 ----
       "Warnings" report other unusual conditions in your code that _may_
       indicate a problem, although compilation can (and does) proceed.
       Warning messages also report the source file name and line number,
!      but include the text 'warning:' to distinguish them from error
       messages.
  
   Warnings may indicate danger points where you should check to make sure
  that your program really does what you intend; or the use of obsolete
  features; or the use of nonstandard features of GNU C or C++.  Many
! warnings are issued only if you ask for them, with one of the '-W'
! options (for instance, '-Wall' requests a variety of useful warnings).
  
   GCC always tries to compile your program if possible; it never
  gratuitously rejects a program whose meaning is clear merely because
  (for instance) it fails to conform to a standard.  In some cases,
  however, the C and C++ standards specify that certain extensions are
  forbidden, and a diagnostic _must_ be issued by a conforming compiler.
! The '-pedantic' option tells GCC to issue warnings in such cases;
! '-pedantic-errors' says to make them errors instead.  This does not mean
! that _all_ non-ISO constructs get warnings or errors.
  
   *Note Options to Request or Suppress Warnings: Warning Options, for
  more detail on these and related command-line options.
*************** guidelines:
*** 48919,48925 ****
       is a compiler bug.  Reliable compilers never crash.
  
     * If the compiler produces invalid assembly code, for any input
!      whatever (except an `asm' statement), that is a compiler bug,
       unless the compiler reports errors (not just warnings) which would
       ordinarily prevent the assembler from being run.
  
--- 48499,48505 ----
       is a compiler bug.  Reliable compilers never crash.
  
     * If the compiler produces invalid assembly code, for any input
!      whatever (except an 'asm' statement), that is a compiler bug,
       unless the compiler reports errors (not just warnings) which would
       ordinarily prevent the assembler from being run.
  
*************** guidelines:
*** 48930,48942 ****
       program whose behavior is undefined, which happened by chance to
       give the desired results with another C or C++ compiler.
  
!      For example, in many nonoptimizing compilers, you can write `x;'
!      at the end of a function instead of `return x;', with the same
!      results.  But the value of the function is undefined if `return'
!      is omitted; it is not a bug when GCC produces different results.
  
       Problems often result from expressions with two increment
!      operators, as in `f (*p++, *p++)'.  Your previous compiler might
       have interpreted that expression the way you intended; GCC might
       interpret it another way.  Neither compiler is wrong.  The bug is
       in your code.
--- 48510,48522 ----
       program whose behavior is undefined, which happened by chance to
       give the desired results with another C or C++ compiler.
  
!      For example, in many nonoptimizing compilers, you can write 'x;' at
!      the end of a function instead of 'return x;', with the same
!      results.  But the value of the function is undefined if 'return' is
!      omitted; it is not a bug when GCC produces different results.
  
       Problems often result from expressions with two increment
!      operators, as in 'f (*p++, *p++)'.  Your previous compiler might
       have interpreted that expression the way you intended; GCC might
       interpret it another way.  Neither compiler is wrong.  The bug is
       in your code.
*************** File: gcc.info,  Node: Bug Reporting,  P
*** 48964,48970 ****
  =================================
  
  Bugs should be reported to the bug database at
! `http://gcc.gnu.org/bugs.html'.
  
  
  File: gcc.info,  Node: Service,  Next: Contributing,  Prev: Bugs,  Up: Top
--- 48544,48550 ----
  =================================
  
  Bugs should be reported to the bug database at
! <http://gcc.gnu.org/bugs.html>.
  
  
  File: gcc.info,  Node: Service,  Next: Contributing,  Prev: Bugs,  Up: Top
*************** to find it:
*** 48984,48992 ****
  
     * Look in the service directory for someone who might help you for a
       fee.  The service directory is found at
!      `http://www.fsf.org/resources/service'.
  
!  For further information, see `http://gcc.gnu.org/faq.html#support'.
  
  
  File: gcc.info,  Node: Contributing,  Next: Funding,  Prev: Service,  Up: Top
--- 48564,48572 ----
  
     * Look in the service directory for someone who might help you for a
       fee.  The service directory is found at
!      <http://www.fsf.org/resources/service>.
  
!  For further information, see <http://gcc.gnu.org/faq.html#support>.
  
  
  File: gcc.info,  Node: Contributing,  Next: Funding,  Prev: Service,  Up: Top
*************** File: gcc.info,  Node: Contributing,  Ne
*** 48996,49013 ****
  
  If you would like to help pretest GCC releases to assure they work well,
  current development sources are available by SVN (see
! `http://gcc.gnu.org/svn.html').  Source and binary snapshots are also
! available for FTP; see `http://gcc.gnu.org/snapshots.html'.
  
   If you would like to work on improvements to GCC, please read the
  advice at these URLs:
  
!      `http://gcc.gnu.org/contribute.html'
!      `http://gcc.gnu.org/contributewhy.html'
  
  for information on how to make useful contributions and avoid
  duplication of effort.  Suggested projects are listed at
! `http://gcc.gnu.org/projects/'.
  
  
  File: gcc.info,  Node: Funding,  Next: GNU Project,  Prev: Contributing,  Up: Top
--- 48576,48593 ----
  
  If you would like to help pretest GCC releases to assure they work well,
  current development sources are available by SVN (see
! <http://gcc.gnu.org/svn.html>).  Source and binary snapshots are also
! available for FTP; see <http://gcc.gnu.org/snapshots.html>.
  
   If you would like to work on improvements to GCC, please read the
  advice at these URLs:
  
!      <http://gcc.gnu.org/contribute.html>
!      <http://gcc.gnu.org/contributewhy.html>
  
  for information on how to make useful contributions and avoid
  duplication of effort.  Suggested projects are listed at
! <http://gcc.gnu.org/projects/>.
  
  
  File: gcc.info,  Node: Funding,  Next: GNU Project,  Prev: Contributing,  Up: Top
*************** to free software developers--the Free So
*** 49026,49033 ****
  
   The way to convince distributors to do this is to demand it and expect
  it from them.  So when you compare distributors, judge them partly by
! how much they give to free software development.  Show distributors
! they must compete to be the one who gives the most.
  
   To make this approach work, you must insist on numbers that you can
  compare, such as, "We will donate ten dollars to the Frobnitz project
--- 48606,48613 ----
  
   The way to convince distributors to do this is to demand it and expect
  it from them.  So when you compare distributors, judge them partly by
! how much they give to free software development.  Show distributors they
! must compete to be the one who gives the most.
  
   To make this approach work, you must insist on numbers that you can
  compare, such as, "We will donate ten dollars to the Frobnitz project
*************** for comparison.
*** 49037,49044 ****
  
   Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.
! If the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
   Some redistributors do development work themselves.  This is useful
--- 48617,48624 ----
  
   Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.  If
! the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
   Some redistributors do development work themselves.  This is useful
*************** difference than others.  For example, ma
*** 49048,49055 ****
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection
! contribute more; major new features or packages contribute the most.
  
   By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
--- 48628,48635 ----
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection contribute
! more; major new features or packages contribute the most.
  
   By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
*************** now widely used; though these systems ar
*** 49073,49080 ****
  they are more accurately called GNU/Linux systems.
  
   For more information, see:
!      `http://www.gnu.org/'
!      `http://www.gnu.org/gnu/linux-and-gnu.html'
  
  
  File: gcc.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: GNU Project,  Up: Top
--- 48653,48660 ----
  they are more accurately called GNU/Linux systems.
  
   For more information, see:
!      <http://www.gnu.org/>
!      <http://www.gnu.org/gnu/linux-and-gnu.html>
  
  
  File: gcc.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: GNU Project,  Up: Top
*************** GNU General Public License
*** 49084,49090 ****
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
--- 48664,48670 ----
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
*************** GNU General Public License for most of o
*** 49104,49130 ****
  any other work released this way by its authors.  You can apply it to
  your programs, too.
  
!  When we speak of free software, we are referring to freedom, not
! price.  Our General Public Licenses are designed to make sure that you
! have the freedom to distribute copies of free software (and charge for
! them if you wish), that you receive source code or can get it if you
! want it, that you can change the software or use pieces of it in new
! free programs, and that you know you can do these things.
  
   To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you
! have certain responsibilities if you distribute copies of the software,
! or if you modify it: responsibilities to respect the freedom of others.
  
!  For example, if you distribute copies of such a program, whether
! gratis or for a fee, you must pass on to the recipients the same
! freedoms that you received.  You must make sure that they, too, receive
! or can get the source code.  And you must show them these terms so they
! know their rights.
  
!  Developers that use the GNU GPL protect your rights with two steps:
! (1) assert copyright on the software, and (2) offer you this License
! giving you legal permission to copy, distribute and/or modify it.
  
   For the developers' and authors' protection, the GPL clearly explains
  that there is no warranty for this free software.  For both users' and
--- 48684,48710 ----
  any other work released this way by its authors.  You can apply it to
  your programs, too.
  
!  When we speak of free software, we are referring to freedom, not price.
! Our General Public Licenses are designed to make sure that you have the
! freedom to distribute copies of free software (and charge for them if
! you wish), that you receive source code or can get it if you want it,
! that you can change the software or use pieces of it in new free
! programs, and that you know you can do these things.
  
   To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you have
! certain responsibilities if you distribute copies of the software, or if
! you modify it: responsibilities to respect the freedom of others.
  
!  For example, if you distribute copies of such a program, whether gratis
! or for a fee, you must pass on to the recipients the same freedoms that
! you received.  You must make sure that they, too, receive or can get the
! source code.  And you must show them these terms so they know their
! rights.
  
!  Developers that use the GNU GPL protect your rights with two steps: (1)
! assert copyright on the software, and (2) offer you this License giving
! you legal permission to copy, distribute and/or modify it.
  
   For the developers' and authors' protection, the GPL clearly explains
  that there is no warranty for this free software.  For both users' and
*************** changed, so that their problems will not
*** 49133,49148 ****
  authors of previous versions.
  
   Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the
! manufacturer can do so.  This is fundamentally incompatible with the
! aim of protecting users' freedom to change the software.  The
! systematic pattern of such abuse occurs in the area of products for
! individuals to use, which is precisely where it is most unacceptable.
! Therefore, we have designed this version of the GPL to prohibit the
! practice for those products.  If such problems arise substantially in
! other domains, we stand ready to extend this provision to those domains
! in future versions of the GPL, as needed to protect the freedom of
! users.
  
   Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
--- 48713,48727 ----
  authors of previous versions.
  
   Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the manufacturer
! can do so.  This is fundamentally incompatible with the aim of
! protecting users' freedom to change the software.  The systematic
! pattern of such abuse occurs in the area of products for individuals to
! use, which is precisely where it is most unacceptable.  Therefore, we
! have designed this version of the GPL to prohibit the practice for those
! products.  If such problems arise substantially in other domains, we
! stand ready to extend this provision to those domains in future versions
! of the GPL, as needed to protect the freedom of users.
  
   Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
*************** TERMS AND CONDITIONS
*** 49179,49186 ****
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it
!      on a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
--- 48758,48765 ----
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it on
!      a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
*************** TERMS AND CONDITIONS
*** 49194,49201 ****
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may
!      convey the work under this License, and how to view a copy of this
       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
--- 48773,48780 ----
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may convey
!      the work under this License, and how to view a copy of this
       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
*************** TERMS AND CONDITIONS
*** 49203,49210 ****
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any
!      non-source form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
--- 48782,48789 ----
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any non-source
!      form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
*************** TERMS AND CONDITIONS
*** 49215,49224 ****
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work
!      with that Major Component, or to implement a Standard Interface
!      for which an implementation is available to the public in source
!      code form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
--- 48794,48803 ----
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work with
!      that Major Component, or to implement a Standard Interface for
!      which an implementation is available to the public in source code
!      form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
*************** TERMS AND CONDITIONS
*** 49226,49240 ****
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including
!      scripts to control those activities.  However, it does not include
!      the work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files
!      associated with source files for the work, and the source code for
!      shared libraries and dynamically linked subprograms that the work
!      is specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
--- 48805,48819 ----
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including scripts
!      to control those activities.  However, it does not include the
!      work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files associated
!      with source files for the work, and the source code for shared
!      libraries and dynamically linked subprograms that the work is
!      specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
*************** TERMS AND CONDITIONS
*** 49251,49272 ****
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output,
!      given its content, constitutes a covered work.  This License
!      acknowledges your rights of fair use or other equivalent, as
!      provided by copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for
!      you, or provide you with facilities for running those works,
!      provided that you comply with the terms of this License in
!      conveying all material for which you do not control copyright.
!      Those thus making or running the covered works for you must do so
!      exclusively on your behalf, under your direction and control, on
!      terms that prohibit them from making any copies of your
!      copyrighted material outside their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
--- 48830,48851 ----
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output, given
!      its content, constitutes a covered work.  This License acknowledges
!      your rights of fair use or other equivalent, as provided by
!      copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for you,
!      or provide you with facilities for running those works, provided
!      that you comply with the terms of this License in conveying all
!      material for which you do not control copyright.  Those thus making
!      or running the covered works for you must do so exclusively on your
!      behalf, under your direction and control, on terms that prohibit
!      them from making any copies of your copyrighted material outside
!      their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
*************** TERMS AND CONDITIONS
*** 49283,49290 ****
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention
!      to limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
--- 48862,48869 ----
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention to
!      limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
*************** TERMS AND CONDITIONS
*** 49354,49361 ****
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for
!           as long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
--- 48933,48940 ----
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for as
!           long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
*************** TERMS AND CONDITIONS
*** 49365,49396 ****
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of
!           the written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access
!           to the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated
!           by you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to
!           the object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long
!           as needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
- 
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
--- 48944,48974 ----
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of the
!           written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access to
!           the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated by
!           you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to the
!           object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long as
!           needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
*************** TERMS AND CONDITIONS
*** 49398,49405 ****
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product
!      is a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
--- 48976,48983 ----
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product is
!      a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
*************** TERMS AND CONDITIONS
*** 49430,49440 ****
  
       The requirement to provide Installation Information does not
       include a requirement to continue to provide support service,
!      warranty, or updates for a work that has been modified or
!      installed by the recipient, or for the User Product in which it
!      has been modified or installed.  Access to a network may be denied
!      when the modification itself materially and adversely affects the
!      operation of the network or violates the rules and protocols for
       communication across the network.
  
       Corresponding Source conveyed, and Installation Information
--- 49008,49018 ----
  
       The requirement to provide Installation Information does not
       include a requirement to continue to provide support service,
!      warranty, or updates for a work that has been modified or installed
!      by the recipient, or for the User Product in which it has been
!      modified or installed.  Access to a network may be denied when the
!      modification itself materially and adversely affects the operation
!      of the network or violates the rules and protocols for
       communication across the network.
  
       Corresponding Source conveyed, and Installation Information
*************** TERMS AND CONDITIONS
*** 49464,49471 ****
  
       Notwithstanding any other provision of this License, for material
       you add to a covered work, you may (if authorized by the copyright
!      holders of that material) supplement the terms of this License
!      with terms:
  
         a. Disclaiming warranty or limiting liability differently from
            the terms of sections 15 and 16 of this License; or
--- 49042,49049 ----
  
       Notwithstanding any other provision of this License, for material
       you add to a covered work, you may (if authorized by the copyright
!      holders of that material) supplement the terms of this License with
!      terms:
  
         a. Disclaiming warranty or limiting liability differently from
            the terms of sections 15 and 16 of this License; or
*************** TERMS AND CONDITIONS
*** 49475,49483 ****
            Legal Notices displayed by works containing it; or
  
         c. Prohibiting misrepresentation of the origin of that material,
!           or requiring that modified versions of such material be
!           marked in reasonable ways as different from the original
!           version; or
  
         d. Limiting the use for publicity purposes of names of licensors
            or authors of the material; or
--- 49053,49060 ----
            Legal Notices displayed by works containing it; or
  
         c. Prohibiting misrepresentation of the origin of that material,
!           or requiring that modified versions of such material be marked
!           in reasonable ways as different from the original version; or
  
         d. Limiting the use for publicity purposes of names of licensors
            or authors of the material; or
*************** TERMS AND CONDITIONS
*** 49496,49506 ****
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or
!      conveying under this License, you may add to a covered work
!      material governed by the terms of that license document, provided
!      that the further restriction does not survive such relicensing or
!      conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
--- 49073,49082 ----
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or conveying
!      under this License, you may add to a covered work material governed
!      by the terms of that license document, provided that the further
!      restriction does not survive such relicensing or conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
*************** TERMS AND CONDITIONS
*** 49516,49528 ****
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under
!      the third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 49092,49104 ----
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under the
!      third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** TERMS AND CONDITIONS
*** 49534,49543 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, you do not qualify to receive new
!      licenses for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
--- 49110,49119 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, you do not qualify to receive new licenses
!      for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
*************** TERMS AND CONDITIONS
*** 49551,49557 ****
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!  10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
--- 49127,49133 ----
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!   10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
*************** TERMS AND CONDITIONS
*** 49565,49585 ****
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to
!      possession of the Corresponding Source of the work from the
!      predecessor in interest, if the predecessor has it or can get it
!      with reasonable efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for
!      exercise of rights granted under this License, and you may not
!      initiate litigation (including a cross-claim or counterclaim in a
!      lawsuit) alleging that any patent claim is infringed by making,
!      using, selling, offering for sale, or importing the Program or any
!      portion of it.
  
!  11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
--- 49141,49161 ----
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to possession
!      of the Corresponding Source of the work from the predecessor in
!      interest, if the predecessor has it or can get it with reasonable
!      efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for exercise
!      of rights granted under this License, and you may not initiate
!      litigation (including a cross-claim or counterclaim in a lawsuit)
!      alleging that any patent claim is infringed by making, using,
!      selling, offering for sale, or importing the Program or any portion
!      of it.
  
!   11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
*************** TERMS AND CONDITIONS
*** 49599,49613 ****
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its
!      contributor version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To
!      "grant" such a patent license to a party means to make such an
!      agreement or commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
--- 49175,49189 ----
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its contributor
!      version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To "grant"
!      such a patent license to a party means to make such an agreement or
!      commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
*************** TERMS AND CONDITIONS
*** 49637,49672 ****
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under
!      which you make payment to the third party based on the extent of
!      your activity of conveying the work, and under which the third
!      party grants, to any of the parties who would receive the covered
!      work from you, a discriminatory patent license (a) in connection
!      with copies of the covered work conveyed by you (or copies made
!      from those copies), or (b) primarily for and in connection with
!      specific products or compilations that contain the covered work,
!      unless you entered into that arrangement, or that patent license
!      was granted, prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!  12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order,
!      agreement or otherwise) that contradict the conditions of this
!      License, they do not excuse you from the conditions of this
!      License.  If you cannot convey a covered work so as to satisfy
!      simultaneously your obligations under this License and any other
!      pertinent obligations, then as a consequence you may not convey it
!      at all.  For example, if you agree to terms that obligate you to
!      collect a royalty for further conveying from those to whom you
!      convey the Program, the only way you could satisfy both those
!      terms and this License would be to refrain entirely from conveying
!      the Program.
  
!  13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
--- 49213,49247 ----
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under which
!      you make payment to the third party based on the extent of your
!      activity of conveying the work, and under which the third party
!      grants, to any of the parties who would receive the covered work
!      from you, a discriminatory patent license (a) in connection with
!      copies of the covered work conveyed by you (or copies made from
!      those copies), or (b) primarily for and in connection with specific
!      products or compilations that contain the covered work, unless you
!      entered into that arrangement, or that patent license was granted,
!      prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!   12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order, agreement
!      or otherwise) that contradict the conditions of this License, they
!      do not excuse you from the conditions of this License.  If you
!      cannot convey a covered work so as to satisfy simultaneously your
!      obligations under this License and any other pertinent obligations,
!      then as a consequence you may not convey it at all.  For example,
!      if you agree to terms that obligate you to collect a royalty for
!      further conveying from those to whom you convey the Program, the
!      only way you could satisfy both those terms and this License would
!      be to refrain entirely from conveying the Program.
  
!   13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
*************** TERMS AND CONDITIONS
*** 49677,49698 ****
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!  14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.
!      Such new versions will be similar in spirit to the present
!      version, but may differ in detail to address new problems or
!      concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the
!      Free Software Foundation.  If the Program does not specify a
!      version number of the GNU General Public License, you may choose
!      any version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
--- 49252,49272 ----
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!   14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.  Such
!      new versions will be similar in spirit to the present version, but
!      may differ in detail to address new problems or concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the Free
!      Software Foundation.  If the Program does not specify a version
!      number of the GNU General Public License, you may choose any
!      version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
*************** TERMS AND CONDITIONS
*** 49704,49727 ****
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!  15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!  16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
!      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
--- 49278,49301 ----
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!   15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!   16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
!      DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
*************** TERMS AND CONDITIONS
*** 49729,49735 ****
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!  17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
--- 49303,49309 ----
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!   17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
*************** TERMS AND CONDITIONS
*** 49738,49744 ****
       connection with the Program, unless a warranty or assumption of
       liability accompanies a copy of the Program in return for a fee.
  
- 
  END OF TERMS AND CONDITIONS
  ===========================
  
--- 49312,49317 ----
*************** possible use to the public, the best way
*** 49750,49758 ****
  free software which everyone can redistribute and change under these
  terms.
  
!  To do so, attach the following notices to the program.  It is safest
! to attach them to the start of each source file to most effectively
! state the exclusion of warranty; and each file should have at least the
  "copyright" line and a pointer to where the full notice is found.
  
       ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES.
--- 49323,49331 ----
  free software which everyone can redistribute and change under these
  terms.
  
!  To do so, attach the following notices to the program.  It is safest to
! attach them to the start of each source file to most effectively state
! the exclusion of warranty; and each file should have at least the
  "copyright" line and a pointer to where the full notice is found.
  
       ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES.
*************** state the exclusion of warranty; and eac
*** 49769,49788 ****
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see `http://www.gnu.org/licenses/'.
  
   Also add information on how to contact you by electronic and paper
  mail.
  
!  If the program does terminal interaction, make it output a short
! notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type `show c' for details.
  
!  The hypothetical commands `show w' and `show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
--- 49342,49361 ----
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
   Also add information on how to contact you by electronic and paper
  mail.
  
!  If the program does terminal interaction, make it output a short notice
! like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type 'show c' for details.
  
!  The hypothetical commands 'show w' and 'show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
*************** use an "about box".
*** 49790,49803 ****
   You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see `http://www.gnu.org/licenses/'.
  
   The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read `http://www.gnu.org/philosophy/why-not-lgpl.html'.
  
  
  File: gcc.info,  Node: GNU Free Documentation License,  Next: Contributors,  Prev: Copying,  Up: Top
--- 49363,49376 ----
   You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see <http://www.gnu.org/licenses/>.
  
   The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
  
  
  File: gcc.info,  Node: GNU Free Documentation License,  Next: Contributors,  Prev: Copying,  Up: Top
*************** GNU Free Documentation License
*** 49808,49814 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 49381,49387 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 49833,49853 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 49406,49426 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 49865,49876 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 49438,49449 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 49881,49907 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 49454,49480 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 49939,49946 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 49512,49519 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 49954,49965 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 49527,49537 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 49967,50006 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 49539,49577 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 50030,50060 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 49601,49630 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 50067,50077 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 49637,49647 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 50080,50094 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 49650,49664 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 50098,50105 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 49668,49675 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 50126,50145 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 49696,49715 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 50184,50191 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 49754,49761 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 50197,50229 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 49767,49799 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 50253,50259 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 49823,49828 ----
*************** notices just after the title page:
*** 50270,50276 ****
         Free Documentation License''.
  
   If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
! replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 49839,49845 ----
         Free Documentation License''.
  
   If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
! replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 50281,50289 ****
  situation.
  
   If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: gcc.info,  Node: Contributors,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
--- 49850,49858 ----
  situation.
  
   If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: gcc.info,  Node: Contributors,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
*************** File: gcc.info,  Node: Contributors,  Ne
*** 50291,50299 ****
  Contributors to GCC
  *******************
  
! The GCC project would like to thank its many contributors.  Without
! them the project would not have been nearly as successful as it has
! been.  Any omissions in this list are accidental.  Feel free to contact
  <law@redhat.com> or <gerald@pfeifer.com> if you have been left out or
  some of your contributions are not listed.  Please keep this list in
  alphabetical order.
--- 49860,49868 ----
  Contributors to GCC
  *******************
  
! The GCC project would like to thank its many contributors.  Without them
! the project would not have been nearly as successful as it has been.
! Any omissions in this list are accidental.  Feel free to contact
  <law@redhat.com> or <gerald@pfeifer.com> if you have been left out or
  some of your contributions are not listed.  Please keep this list in
  alphabetical order.
*************** alphabetical order.
*** 50428,50434 ****
     * The GNU Classpath project for all of their merged runtime code.
  
     * Nick Clifton for arm, mcore, fr30, v850, m32r, msp430 rx work,
!      `--help', and other random hacking.
  
     * Michael Cook for libstdc++ cleanup patches to reduce warnings.
  
--- 49997,50003 ----
     * The GNU Classpath project for all of their merged runtime code.
  
     * Nick Clifton for arm, mcore, fr30, v850, m32r, msp430 rx work,
!      '--help', and other random hacking.
  
     * Michael Cook for libstdc++ cleanup patches to reduce warnings.
  
*************** alphabetical order.
*** 50448,50455 ****
     * Paul Dale for his work to add uClinux platform support to the m68k
       backend.
  
!    * Dario Dariol contributed the four varieties of sample programs
!      that print a copy of their source.
  
     * Russell Davidson for fstream and stringstream fixes in libstdc++.
  
--- 50017,50024 ----
     * Paul Dale for his work to add uClinux platform support to the m68k
       backend.
  
!    * Dario Dariol contributed the four varieties of sample programs that
!      print a copy of their source.
  
     * Russell Davidson for fstream and stringstream fixes in libstdc++.
  
*************** alphabetical order.
*** 50464,50482 ****
  
     * Gabriel Dos Reis for contributions to G++, contributions and
       maintenance of GCC diagnostics infrastructure, libstdc++-v3,
!      including `valarray<>', `complex<>', maintaining the numerics
!      library (including that pesky `<limits>' :-) and keeping
!      up-to-date anything to do with numbers.
  
     * Ulrich Drepper for his work on glibc, testing of GCC using glibc,
!      ISO C99 support, CFG dumping support, etc., plus support of the
!      C++ runtime libraries including for all kinds of C interface
!      issues, contributing and maintaining `complex<>', sanity checking
!      and disbursement, configuration architecture, libio maintenance,
!      and early math work.
  
     * Franc,ois Dumont for his work on libstdc++-v3, especially
!      maintaining and improving `debug-mode' and associative and
       unordered containers.
  
     * Zdenek Dvorak for a new loop unroller and various fixes.
--- 50033,50051 ----
  
     * Gabriel Dos Reis for contributions to G++, contributions and
       maintenance of GCC diagnostics infrastructure, libstdc++-v3,
!      including 'valarray<>', 'complex<>', maintaining the numerics
!      library (including that pesky '<limits>' :-) and keeping up-to-date
!      anything to do with numbers.
  
     * Ulrich Drepper for his work on glibc, testing of GCC using glibc,
!      ISO C99 support, CFG dumping support, etc., plus support of the C++
!      runtime libraries including for all kinds of C interface issues,
!      contributing and maintaining 'complex<>', sanity checking and
!      disbursement, configuration architecture, libio maintenance, and
!      early math work.
  
     * Franc,ois Dumont for his work on libstdc++-v3, especially
!      maintaining and improving 'debug-mode' and associative and
       unordered containers.
  
     * Zdenek Dvorak for a new loop unroller and various fixes.
*************** alphabetical order.
*** 50528,50538 ****
     * Peter Gerwinski for various bug fixes and the Pascal front end.
  
     * Kaveh R. Ghazi for his direction via the steering committee,
!      amazing work to make `-W -Wall -W* -Werror' useful, and testing
!      GCC on a plethora of platforms.  Kaveh extends his gratitude to
!      the CAIP Center at Rutgers University for providing him with
!      computing resources to work on Free Software from the late 1980s
!      to 2010.
  
     * John Gilmore for a donation to the FSF earmarked improving GNU
       Java.
--- 50097,50106 ----
     * Peter Gerwinski for various bug fixes and the Pascal front end.
  
     * Kaveh R. Ghazi for his direction via the steering committee,
!      amazing work to make '-W -Wall -W* -Werror' useful, and testing GCC
!      on a plethora of platforms.  Kaveh extends his gratitude to the
!      CAIP Center at Rutgers University for providing him with computing
!      resources to work on Free Software from the late 1980s to 2010.
  
     * John Gilmore for a donation to the FSF earmarked improving GNU
       Java.
*************** alphabetical order.
*** 50544,50564 ****
       support, improved leaf function register allocation, and his
       direction via the steering committee.
  
!    * Jonny Grant for improvements to `collect2's' `--help'
       documentation.
  
!    * Anthony Green for his `-Os' contributions, the moxie port, and
!      Java front end work.
  
!    * Stu Grossman for gdb hacking, allowing GCJ developers to debug
!      Java code.
  
     * Michael K. Gschwind contributed the port to the PDP-11.
  
     * Richard Biener for his ongoing middle-end contributions and bug
       fixes and for release management.
  
!    * Ron Guilmette implemented the `protoize' and `unprotoize' tools,
       the support for DWARF 1 symbolic debugging information, and much of
       the support for System V Release 4.  He has also worked heavily on
       the Intel 386 and 860 support.
--- 50112,50132 ----
       support, improved leaf function register allocation, and his
       direction via the steering committee.
  
!    * Jonny Grant for improvements to 'collect2's' '--help'
       documentation.
  
!    * Anthony Green for his '-Os' contributions, the moxie port, and Java
!      front end work.
  
!    * Stu Grossman for gdb hacking, allowing GCJ developers to debug Java
!      code.
  
     * Michael K. Gschwind contributed the port to the PDP-11.
  
     * Richard Biener for his ongoing middle-end contributions and bug
       fixes and for release management.
  
!    * Ron Guilmette implemented the 'protoize' and 'unprotoize' tools,
       the support for DWARF 1 symbolic debugging information, and much of
       the support for System V Release 4.  He has also worked heavily on
       the Intel 386 and 860 support.
*************** alphabetical order.
*** 50577,50584 ****
       series 300.
  
     * Michael Hayes for various thankless work he's done trying to get
!      the c30/c40 ports functional.  Lots of loop and unroll
!      improvements and fixes.
  
     * Dara Hazeghi for wading through myriads of target-specific bug
       reports.
--- 50145,50152 ----
       series 300.
  
     * Michael Hayes for various thankless work he's done trying to get
!      the c30/c40 ports functional.  Lots of loop and unroll improvements
!      and fixes.
  
     * Dara Hazeghi for wading through myriads of target-specific bug
       reports.
*************** alphabetical order.
*** 50612,50619 ****
  
     * Falk Hueffner for working on C and optimization bug reports.
  
!    * Bernardo Innocenti for his m68k work, including merging of
!      ColdFire improvements and uClinux support.
  
     * Christian Iseli for various bug fixes.
  
--- 50180,50187 ----
  
     * Falk Hueffner for working on C and optimization bug reports.
  
!    * Bernardo Innocenti for his m68k work, including merging of ColdFire
!      improvements and uClinux support.
  
     * Christian Iseli for various bug fixes.
  
*************** alphabetical order.
*** 50666,50678 ****
     * Richard Kenner of the New York University Ultracomputer Research
       Laboratory wrote the machine descriptions for the AMD 29000, the
       DEC Alpha, the IBM RT PC, and the IBM RS/6000 as well as the
!      support for instruction attributes.  He also made changes to
!      better support RISC processors including changes to common
!      subexpression elimination, strength reduction, function calling
!      sequence handling, and condition code support, in addition to
!      generalizing the code for frame pointer elimination and delay slot
!      scheduling.  Richard Kenner was also the head maintainer of GCC
!      for several years.
  
     * Mumit Khan for various contributions to the Cygwin and Mingw32
       ports and maintaining binary releases for Microsoft Windows hosts,
--- 50234,50246 ----
     * Richard Kenner of the New York University Ultracomputer Research
       Laboratory wrote the machine descriptions for the AMD 29000, the
       DEC Alpha, the IBM RT PC, and the IBM RS/6000 as well as the
!      support for instruction attributes.  He also made changes to better
!      support RISC processors including changes to common subexpression
!      elimination, strength reduction, function calling sequence
!      handling, and condition code support, in addition to generalizing
!      the code for frame pointer elimination and delay slot scheduling.
!      Richard Kenner was also the head maintainer of GCC for several
!      years.
  
     * Mumit Khan for various contributions to the Cygwin and Mingw32
       ports and maintaining binary releases for Microsoft Windows hosts,
*************** alphabetical order.
*** 50698,50708 ****
     * Asher Langton and Mike Kumbera for contributing Cray pointer
       support to GNU Fortran, and for other GNU Fortran improvements.
  
!    * Jeff Law for his direction via the steering committee,
!      coordinating the entire egcs project and GCC 2.95, rolling out
!      snapshots and releases, handling merges from GCC2, reviewing tons
!      of patches that might have fallen through the cracks else, and
!      random but extensive hacking.
  
     * Walter Lee for work on the TILE-Gx and TILEPro ports.
  
--- 50266,50276 ----
     * Asher Langton and Mike Kumbera for contributing Cray pointer
       support to GNU Fortran, and for other GNU Fortran improvements.
  
!    * Jeff Law for his direction via the steering committee, coordinating
!      the entire egcs project and GCC 2.95, rolling out snapshots and
!      releases, handling merges from GCC2, reviewing tons of patches that
!      might have fallen through the cracks else, and random but extensive
!      hacking.
  
     * Walter Lee for work on the TILE-Gx and TILEPro ports.
  
*************** alphabetical order.
*** 50731,50737 ****
  
     * Weiwen Liu for testing and various bug fixes.
  
!    * Manuel Lo'pez-Iba'n~ez for improving `-Wconversion' and many other
       diagnostics fixes and improvements.
  
     * Dave Love for his ongoing work with the Fortran front end and
--- 50299,50305 ----
  
     * Weiwen Liu for testing and various bug fixes.
  
!    * Manuel Lo'pez-Iba'n~ez for improving '-Wconversion' and many other
       diagnostics fixes and improvements.
  
     * Dave Love for his ongoing work with the Fortran front end and
*************** alphabetical order.
*** 50748,50761 ****
     * Greg McGary for random fixes and (someday) bounded pointers.
  
     * Andrew MacLeod for his ongoing work in building a real EH system,
!      various code generation improvements, work on the global
!      optimizer, etc.
  
     * Vladimir Makarov for hacking some ugly i960 problems, PowerPC
!      hacking improvements to compile-time performance, overall
!      knowledge and direction in the area of instruction scheduling, and
!      design and implementation of the automaton based instruction
!      scheduler.
  
     * Bob Manson for his behind the scenes work on dejagnu.
  
--- 50316,50328 ----
     * Greg McGary for random fixes and (someday) bounded pointers.
  
     * Andrew MacLeod for his ongoing work in building a real EH system,
!      various code generation improvements, work on the global optimizer,
!      etc.
  
     * Vladimir Makarov for hacking some ugly i960 problems, PowerPC
!      hacking improvements to compile-time performance, overall knowledge
!      and direction in the area of instruction scheduling, and design and
!      implementation of the automaton based instruction scheduler.
  
     * Bob Manson for his behind the scenes work on dejagnu.
  
*************** alphabetical order.
*** 50794,50800 ****
  
     * Mark Mitchell for his direction via the steering committee,
       mountains of C++ work, load/store hoisting out of loops, alias
!      analysis improvements, ISO C `restrict' support, and serving as
       release manager from 2000 to 2011.
  
     * Alan Modra for various GNU/Linux bits and testing.
--- 50361,50367 ----
  
     * Mark Mitchell for his direction via the steering committee,
       mountains of C++ work, load/store hoisting out of loops, alias
!      analysis improvements, ISO C 'restrict' support, and serving as
       release manager from 2000 to 2011.
  
     * Alan Modra for various GNU/Linux bits and testing.
*************** alphabetical order.
*** 50804,50812 ****
  
     * Jason Molenda for major help in the care and feeding of all the
       services on the gcc.gnu.org (formerly egcs.cygnus.com)
!      machine--mail, web services, ftp services, etc etc.  Doing all
!      this work on scrap paper and the backs of envelopes would have
!      been... difficult.
  
     * Catherine Moore for fixing various ugly problems we have sent her
       way, including the haifa bug which was killing the Alpha & PowerPC
--- 50371,50379 ----
  
     * Jason Molenda for major help in the care and feeding of all the
       services on the gcc.gnu.org (formerly egcs.cygnus.com)
!      machine--mail, web services, ftp services, etc etc.  Doing all this
!      work on scrap paper and the backs of envelopes would have been...
!      difficult.
  
     * Catherine Moore for fixing various ugly problems we have sent her
       way, including the haifa bug which was killing the Alpha & PowerPC
*************** alphabetical order.
*** 50818,50825 ****
       initial IA-64 port.
  
     * Stephen Moshier contributed the floating point emulator that
!      assists in cross-compilation and permits support for floating
!      point numbers wider than 64 bits and for ISO C99 support.
  
     * Bill Moyer for his behind the scenes work on various issues.
  
--- 50385,50392 ----
       initial IA-64 port.
  
     * Stephen Moshier contributed the floating point emulator that
!      assists in cross-compilation and permits support for floating point
!      numbers wider than 64 bits and for ISO C99 support.
  
     * Bill Moyer for his behind the scenes work on various issues.
  
*************** alphabetical order.
*** 50842,50850 ****
     * NeXT, Inc. donated the front end that supports the Objective-C
       language.
  
!    * Hans-Peter Nilsson for the CRIS and MMIX ports, improvements to
!      the search engine setup, various documentation fixes and other
!      small fixes.
  
     * Geoff Noer for his work on getting cygwin native builds working.
  
--- 50409,50417 ----
     * NeXT, Inc. donated the front end that supports the Objective-C
       language.
  
!    * Hans-Peter Nilsson for the CRIS and MMIX ports, improvements to the
!      search engine setup, various documentation fixes and other small
!      fixes.
  
     * Geoff Noer for his work on getting cygwin native builds working.
  
*************** alphabetical order.
*** 50852,50859 ****
       tracking web pages, GIMPLE tuples, and assorted fixes.
  
     * David O'Brien for the FreeBSD/alpha, FreeBSD/AMD x86-64,
!      FreeBSD/ARM, FreeBSD/PowerPC, and FreeBSD/SPARC64 ports and
!      related infrastructure improvements.
  
     * Alexandre Oliva for various build infrastructure improvements,
       scripts and amazing testing work, including keeping libtool issues
--- 50419,50426 ----
       tracking web pages, GIMPLE tuples, and assorted fixes.
  
     * David O'Brien for the FreeBSD/alpha, FreeBSD/AMD x86-64,
!      FreeBSD/ARM, FreeBSD/PowerPC, and FreeBSD/SPARC64 ports and related
!      infrastructure improvements.
  
     * Alexandre Oliva for various build infrastructure improvements,
       scripts and amazing testing work, including keeping libtool issues
*************** alphabetical order.
*** 50865,50872 ****
  
     * Rainer Orth for random MIPS work, including improvements to GCC's
       o32 ABI support, improvements to dejagnu's MIPS support, Java
!      configuration clean-ups and porting work, and maintaining the
!      IRIX, Solaris 2, and Tru64 UNIX ports.
  
     * Hartmut Penner for work on the s390 port.
  
--- 50432,50439 ----
  
     * Rainer Orth for random MIPS work, including improvements to GCC's
       o32 ABI support, improvements to dejagnu's MIPS support, Java
!      configuration clean-ups and porting work, and maintaining the IRIX,
!      Solaris 2, and Tru64 UNIX ports.
  
     * Hartmut Penner for work on the s390 port.
  
*************** alphabetical order.
*** 50916,50922 ****
  
     * David Ronis inspired and encouraged Craig to rewrite the G77
       documentation in texinfo format by contributing a first pass at a
!      translation of the old `g77-0.5.16/f/DOC' file.
  
     * Ken Rose for fixes to GCC's delay slot filling code.
  
--- 50483,50489 ----
  
     * David Ronis inspired and encouraged Craig to rewrite the G77
       documentation in texinfo format by contributing a first pass at a
!      translation of the old 'g77-0.5.16/f/DOC' file.
  
     * Ken Rose for fixes to GCC's delay slot filling code.
  
*************** alphabetical order.
*** 50948,50955 ****
     * Tobias Schlu"ter for work on GNU Fortran.
  
     * Bernd Schmidt for various code generation improvements and major
!      work in the reload pass, serving as release manager for GCC
!      2.95.3, and work on the Blackfin and C6X ports.
  
     * Peter Schmid for constant testing of libstdc++--especially
       application testing, going above and beyond what was requested for
--- 50515,50522 ----
     * Tobias Schlu"ter for work on GNU Fortran.
  
     * Bernd Schmidt for various code generation improvements and major
!      work in the reload pass, serving as release manager for GCC 2.95.3,
!      and work on the Blackfin and C6X ports.
  
     * Peter Schmid for constant testing of libstdc++--especially
       application testing, going above and beyond what was requested for
*************** alphabetical order.
*** 50964,50970 ****
     * Dodji Seketeli for numerous C++ bug fixes and debug info
       improvements.
  
!    * Tim Shen for major work on `<regex>'.
  
     * Joel Sherrill for his direction via the steering committee, RTEMS
       contributions and RTEMS testing.
--- 50531,50537 ----
     * Dodji Seketeli for numerous C++ bug fixes and debug info
       improvements.
  
!    * Tim Shen for major work on '<regex>'.
  
     * Joel Sherrill for his direction via the steering committee, RTEMS
       contributions and RTEMS testing.
*************** alphabetical order.
*** 50979,50986 ****
       from the LWG (thereby keeping GCC in line with updates from the
       ISO).
  
!    * Franz Sirl for his ongoing work with making the PPC port stable
!      for GNU/Linux.
  
     * Andrey Slepuhin for assorted AIX hacking.
  
--- 50546,50553 ----
       from the LWG (thereby keeping GCC in line with updates from the
       ISO).
  
!    * Franz Sirl for his ongoing work with making the PPC port stable for
!      GNU/Linux.
  
     * Andrey Slepuhin for assorted AIX hacking.
  
*************** alphabetical order.
*** 50995,51006 ****
     * Randy Smith finished the Sun FPA support.
  
     * Ed Smith-Rowland for his continuous work on libstdc++-v3, special
!      functions, `<random>', and various improvements to C++11 features.
  
     * Scott Snyder for queue, iterator, istream, and string fixes and
       libstdc++ testsuite entries.  Also for providing the patch to G77
!      to add rudimentary support for `INTEGER*1', `INTEGER*2', and
!      `LOGICAL*1'.
  
     * Zdenek Sojka for running automated regression testing of GCC and
       reporting numerous bugs.
--- 50562,50573 ----
     * Randy Smith finished the Sun FPA support.
  
     * Ed Smith-Rowland for his continuous work on libstdc++-v3, special
!      functions, '<random>', and various improvements to C++11 features.
  
     * Scott Snyder for queue, iterator, istream, and string fixes and
       libstdc++ testsuite entries.  Also for providing the patch to G77
!      to add rudimentary support for 'INTEGER*1', 'INTEGER*2', and
!      'LOGICAL*1'.
  
     * Zdenek Sojka for running automated regression testing of GCC and
       reporting numerous bugs.
*************** alphabetical order.
*** 51024,51031 ****
  
     * John Stracke for his Java HTTP protocol fixes.
  
!    * Mike Stump for his Elxsi port, G++ contributions over the years
!      and more recently his vxworks contributions
  
     * Jeff Sturm for Java porting help, bug fixes, and encouragement.
  
--- 50591,50598 ----
  
     * John Stracke for his Java HTTP protocol fixes.
  
!    * Mike Stump for his Elxsi port, G++ contributions over the years and
!      more recently his vxworks contributions
  
     * Jeff Sturm for Java porting help, bug fixes, and encouragement.
  
*************** alphabetical order.
*** 51079,51086 ****
     * Jonathan Wakely for contributing libstdc++ Doxygen notes and XHTML
       guidance.
  
!    * Dean Wakerley for converting the install documentation from HTML
!      to texinfo in time for GCC 3.0.
  
     * Krister Walfridsson for random bug fixes.
  
--- 50646,50653 ----
     * Jonathan Wakely for contributing libstdc++ Doxygen notes and XHTML
       guidance.
  
!    * Dean Wakerley for converting the install documentation from HTML to
!      texinfo in time for GCC 3.0.
  
     * Krister Walfridsson for random bug fixes.
  
*************** alphabetical order.
*** 51088,51095 ****
  
     * Stephen M. Webb for time and effort on making libstdc++ shadow
       files work with the tricky Solaris 8+ headers, and for pushing the
!      build-time header tree. Also, for starting and driving the
!      `<regex>' effort.
  
     * John Wehle for various improvements for the x86 code generator,
       related infrastructure improvements to help x86 code generation,
--- 50655,50662 ----
  
     * Stephen M. Webb for time and effort on making libstdc++ shadow
       files work with the tricky Solaris 8+ headers, and for pushing the
!      build-time header tree.  Also, for starting and driving the
!      '<regex>' effort.
  
     * John Wehle for various improvements for the x86 code generator,
       related infrastructure improvements to help x86 code generation,
*************** alphabetical order.
*** 51111,51118 ****
     * Bob Wilson from Tensilica, Inc. for the Xtensa port.
  
     * Jim Wilson for his direction via the steering committee, tackling
!      hard problems in various places that nobody else wanted to work
!      on, strength reduction and other loop optimizations.
  
     * Paul Woegerer and Tal Agmon for the CRX port.
  
--- 50678,50685 ----
     * Bob Wilson from Tensilica, Inc. for the Xtensa port.
  
     * Jim Wilson for his direction via the steering committee, tackling
!      hard problems in various places that nobody else wanted to work on,
!      strength reduction and other loop optimizations.
  
     * Paul Woegerer and Tal Agmon for the CRX port.
  
*************** alphabetical order.
*** 51135,51141 ****
  
     * Gilles Zunino for help porting Java to Irix.
  
- 
   The following people are recognized for their contributions to GNAT,
  the Ada front end of GCC:
     * Bernard Banner
--- 50702,50707 ----
*************** the Ada front end of GCC:
*** 51232,51333 ****
  
     * Samuel Tardieu
  
- 
   The following people are recognized for their contributions of new
  features, bug reports, testing and integration of classpath/libgcj for
  GCC version 4.1:
!    * Lillian Angel for `JTree' implementation and lots Free Swing
       additions and bug fixes.
  
!    * Wolfgang Baer for `GapContent' bug fixes.
  
!    * Anthony Balkissoon for `JList', Free Swing 1.5 updates and mouse
!      event fixes, lots of Free Swing work including `JTable' editing.
  
     * Stuart Ballard for RMI constant fixes.
  
!    * Goffredo Baroncelli for `HTTPURLConnection' fixes.
  
!    * Gary Benson for `MessageFormat' fixes.
  
!    * Daniel Bonniot for `Serialization' fixes.
  
!    * Chris Burdess for lots of gnu.xml and http protocol fixes, `StAX'
!      and `DOM xml:id' support.
  
!    * Ka-Hing Cheung for `TreePath' and `TreeSelection' fixes.
  
     * Archie Cobbs for build fixes, VM interface updates,
!      `URLClassLoader' updates.
  
     * Kelley Cook for build fixes.
  
!    * Martin Cordova for Suggestions for better `SocketTimeoutException'.
  
!    * David Daney for `BitSet' bug fixes, `HttpURLConnection' rewrite
!      and improvements.
  
     * Thomas Fitzsimmons for lots of upgrades to the gtk+ AWT and Cairo
!      2D support. Lots of imageio framework additions, lots of AWT and
       Free Swing bug fixes.
  
!    * Jeroen Frijters for `ClassLoader' and nio cleanups, serialization
!      fixes, better `Proxy' support, bug fixes and IKVM integration.
  
!    * Santiago Gala for `AccessControlContext' fixes.
  
!    * Nicolas Geoffray for `VMClassLoader' and `AccessController'
       improvements.
  
!    * David Gilbert for `basic' and `metal' icon and plaf support and
       lots of documenting, Lots of Free Swing and metal theme additions.
!      `MetalIconFactory' implementation.
  
!    * Anthony Green for `MIDI' framework, `ALSA' and `DSSI' providers.
  
!    * Andrew Haley for `Serialization' and `URLClassLoader' fixes, gcj
       build speedups.
  
!    * Kim Ho for `JFileChooser' implementation.
  
!    * Andrew John Hughes for `Locale' and net fixes, URI RFC2986
!      updates, `Serialization' fixes, `Properties' XML support and
!      generic branch work, VMIntegration guide update.
  
!    * Bastiaan Huisman for `TimeZone' bug fixing.
  
     * Andreas Jaeger for mprec updates.
  
!    * Paul Jenner for better `-Werror' support.
  
!    * Ito Kazumitsu for `NetworkInterface' implementation and updates.
  
!    * Roman Kennke for `BoxLayout', `GrayFilter' and `SplitPane', plus
!      bug fixes all over. Lots of Free Swing work including styled text.
  
!    * Simon Kitching for `String' cleanups and optimization suggestions.
  
!    * Michael Koch for configuration fixes, `Locale' updates, bug and
       build fixes.
  
     * Guilhem Lavaux for configuration, thread and channel fixes and
!      Kaffe integration. JCL native `Pointer' updates. Logger bug fixes.
  
     * David Lichteblau for JCL support library global/local reference
       cleanups.
  
     * Aaron Luchko for JDWP updates and documentation fixes.
  
!    * Ziga Mahkovec for `Graphics2D' upgraded to Cairo 0.5 and new regex
       features.
  
!    * Sven de Marothy for BMP imageio support, CSS and `TextLayout'
!      fixes. `GtkImage' rewrite, 2D, awt, free swing and date/time fixes
       and implementing the Qt4 peers.
  
!    * Casey Marshall for crypto algorithm fixes, `FileChannel' lock,
!      `SystemLogger' and `FileHandler' rotate implementations, NIO
!      `FileChannel.map' support, security and policy updates.
  
     * Bryce McKinlay for RMI work.
  
--- 50798,50899 ----
  
     * Samuel Tardieu
  
   The following people are recognized for their contributions of new
  features, bug reports, testing and integration of classpath/libgcj for
  GCC version 4.1:
!    * Lillian Angel for 'JTree' implementation and lots Free Swing
       additions and bug fixes.
  
!    * Wolfgang Baer for 'GapContent' bug fixes.
  
!    * Anthony Balkissoon for 'JList', Free Swing 1.5 updates and mouse
!      event fixes, lots of Free Swing work including 'JTable' editing.
  
     * Stuart Ballard for RMI constant fixes.
  
!    * Goffredo Baroncelli for 'HTTPURLConnection' fixes.
  
!    * Gary Benson for 'MessageFormat' fixes.
  
!    * Daniel Bonniot for 'Serialization' fixes.
  
!    * Chris Burdess for lots of gnu.xml and http protocol fixes, 'StAX'
!      and 'DOM xml:id' support.
  
!    * Ka-Hing Cheung for 'TreePath' and 'TreeSelection' fixes.
  
     * Archie Cobbs for build fixes, VM interface updates,
!      'URLClassLoader' updates.
  
     * Kelley Cook for build fixes.
  
!    * Martin Cordova for Suggestions for better 'SocketTimeoutException'.
  
!    * David Daney for 'BitSet' bug fixes, 'HttpURLConnection' rewrite and
!      improvements.
  
     * Thomas Fitzsimmons for lots of upgrades to the gtk+ AWT and Cairo
!      2D support.  Lots of imageio framework additions, lots of AWT and
       Free Swing bug fixes.
  
!    * Jeroen Frijters for 'ClassLoader' and nio cleanups, serialization
!      fixes, better 'Proxy' support, bug fixes and IKVM integration.
  
!    * Santiago Gala for 'AccessControlContext' fixes.
  
!    * Nicolas Geoffray for 'VMClassLoader' and 'AccessController'
       improvements.
  
!    * David Gilbert for 'basic' and 'metal' icon and plaf support and
       lots of documenting, Lots of Free Swing and metal theme additions.
!      'MetalIconFactory' implementation.
  
!    * Anthony Green for 'MIDI' framework, 'ALSA' and 'DSSI' providers.
  
!    * Andrew Haley for 'Serialization' and 'URLClassLoader' fixes, gcj
       build speedups.
  
!    * Kim Ho for 'JFileChooser' implementation.
  
!    * Andrew John Hughes for 'Locale' and net fixes, URI RFC2986 updates,
!      'Serialization' fixes, 'Properties' XML support and generic branch
!      work, VMIntegration guide update.
  
!    * Bastiaan Huisman for 'TimeZone' bug fixing.
  
     * Andreas Jaeger for mprec updates.
  
!    * Paul Jenner for better '-Werror' support.
  
!    * Ito Kazumitsu for 'NetworkInterface' implementation and updates.
  
!    * Roman Kennke for 'BoxLayout', 'GrayFilter' and 'SplitPane', plus
!      bug fixes all over.  Lots of Free Swing work including styled text.
  
!    * Simon Kitching for 'String' cleanups and optimization suggestions.
  
!    * Michael Koch for configuration fixes, 'Locale' updates, bug and
       build fixes.
  
     * Guilhem Lavaux for configuration, thread and channel fixes and
!      Kaffe integration.  JCL native 'Pointer' updates.  Logger bug
!      fixes.
  
     * David Lichteblau for JCL support library global/local reference
       cleanups.
  
     * Aaron Luchko for JDWP updates and documentation fixes.
  
!    * Ziga Mahkovec for 'Graphics2D' upgraded to Cairo 0.5 and new regex
       features.
  
!    * Sven de Marothy for BMP imageio support, CSS and 'TextLayout'
!      fixes.  'GtkImage' rewrite, 2D, awt, free swing and date/time fixes
       and implementing the Qt4 peers.
  
!    * Casey Marshall for crypto algorithm fixes, 'FileChannel' lock,
!      'SystemLogger' and 'FileHandler' rotate implementations, NIO
!      'FileChannel.map' support, security and policy updates.
  
     * Bryce McKinlay for RMI work.
  
*************** GCC version 4.1:
*** 51338,51383 ****
  
     * Rainer Orth for build fixes.
  
!    * Andrew Overholt for `File' locking fixes.
  
!    * Ingo Proetel for `Image', `Logger' and `URLClassLoader' updates.
  
!    * Olga Rodimina for `MenuSelectionManager' implementation.
  
!    * Jan Roehrich for `BasicTreeUI' and `JTree' fixes.
  
     * Julian Scheid for documentation updates and gjdoc support.
  
     * Christian Schlichtherle for zip fixes and cleanups.
  
     * Robert Schuster for documentation updates and beans fixes,
!      `TreeNode' enumerations and `ActionCommand' and various fixes, XML
       and URL, AWT and Free Swing bug fixes.
  
     * Keith Seitz for lots of JDWP work.
  
     * Christian Thalinger for 64-bit cleanups, Configuration and VM
!      interface fixes and `CACAO' integration, `fdlibm' updates.
  
!    * Gael Thomas for `VMClassLoader' boot packages support suggestions.
  
!    * Andreas Tobler for Darwin and Solaris testing and fixing, `Qt4'
!      support for Darwin/OS X, `Graphics2D' support, `gtk+' updates.
  
!    * Dalibor Topic for better `DEBUG' support, build cleanups and Kaffe
!      integration. `Qt4' build infrastructure, `SHA1PRNG' and
!      `GdkPixbugDecoder' updates.
  
     * Tom Tromey for Eclipse integration, generics work, lots of bug
       fixes and gcj integration including coordinating The Big Merge.
  
     * Mark Wielaard for bug fixes, packaging and release management,
!      `Clipboard' implementation, system call interrupts and network
!      timeouts and `GdkPixpufDecoder' fixes.
! 
  
!  In addition to the above, all of which also contributed time and
! energy in testing GCC, we would like to thank the following for their
  contributions to testing:
  
     * Michael Abd-El-Malek
--- 50904,50948 ----
  
     * Rainer Orth for build fixes.
  
!    * Andrew Overholt for 'File' locking fixes.
  
!    * Ingo Proetel for 'Image', 'Logger' and 'URLClassLoader' updates.
  
!    * Olga Rodimina for 'MenuSelectionManager' implementation.
  
!    * Jan Roehrich for 'BasicTreeUI' and 'JTree' fixes.
  
     * Julian Scheid for documentation updates and gjdoc support.
  
     * Christian Schlichtherle for zip fixes and cleanups.
  
     * Robert Schuster for documentation updates and beans fixes,
!      'TreeNode' enumerations and 'ActionCommand' and various fixes, XML
       and URL, AWT and Free Swing bug fixes.
  
     * Keith Seitz for lots of JDWP work.
  
     * Christian Thalinger for 64-bit cleanups, Configuration and VM
!      interface fixes and 'CACAO' integration, 'fdlibm' updates.
  
!    * Gael Thomas for 'VMClassLoader' boot packages support suggestions.
  
!    * Andreas Tobler for Darwin and Solaris testing and fixing, 'Qt4'
!      support for Darwin/OS X, 'Graphics2D' support, 'gtk+' updates.
  
!    * Dalibor Topic for better 'DEBUG' support, build cleanups and Kaffe
!      integration.  'Qt4' build infrastructure, 'SHA1PRNG' and
!      'GdkPixbugDecoder' updates.
  
     * Tom Tromey for Eclipse integration, generics work, lots of bug
       fixes and gcj integration including coordinating The Big Merge.
  
     * Mark Wielaard for bug fixes, packaging and release management,
!      'Clipboard' implementation, system call interrupts and network
!      timeouts and 'GdkPixpufDecoder' fixes.
  
!  In addition to the above, all of which also contributed time and energy
! in testing GCC, we would like to thank the following for their
  contributions to testing:
  
     * Michael Abd-El-Malek
*************** File: gcc.info,  Node: Option Index,  Ne
*** 51546,51554 ****
  Option Index
  ************
  
! GCC's command line options are indexed here without any initial `-' or
! `--'.  Where an option has both positive and negative forms (such as
! `-fOPTION' and `-fno-OPTION'), relevant entries in the manual are
  indexed under the most appropriate form; it may sometimes be useful to
  look up both forms.
  
--- 51111,51119 ----
  Option Index
  ************
  
! GCC's command line options are indexed here without any initial '-' or
! '--'.  Where an option has both positive and negative forms (such as
! '-fOPTION' and '-fno-OPTION'), relevant entries in the manual are
  indexed under the most appropriate form; it may sometimes be useful to
  look up both forms.
  
*************** look up both forms.
*** 51556,51734 ****
  * Menu:
  
  * ###:                                   Overall Options.    (line  201)
! * -fipa-cp-alignment:                    Optimize Options.   (line 1010)
! * -mlow-precision-recip-sqrt:            AArch64 Options.    (line   88)
! * -mno-low-precision-recip-sqrt:         AArch64 Options.    (line   88)
  * -Wabi-tag:                             C++ Dialect Options.
!                                                              (line  510)
! * -Wno-scalar-storage-order:             Warning Options.    (line 1519)
! * -Wscalar-storage-order:                Warning Options.    (line 1519)
  * A:                                     Preprocessor Options.
!                                                              (line  596)
! * all_load:                              Darwin Options.     (line  110)
  * allowable_client:                      Darwin Options.     (line  196)
! * ansi <1>:                              Non-bugs.           (line  107)
! * ansi <2>:                              Other Builtins.     (line   31)
! * ansi <3>:                              Preprocessor Options.
!                                                              (line  338)
! * ansi <4>:                              C Dialect Options.  (line   11)
  * ansi:                                  Standards.          (line   13)
  * arch_errors_fatal:                     Darwin Options.     (line  114)
! * aux-info:                              C Dialect Options.  (line  175)
! * B:                                     Directory Options.  (line   46)
  * Bdynamic:                              VxWorks Options.    (line   22)
  * bind_at_load:                          Darwin Options.     (line  118)
  * Bstatic:                               VxWorks Options.    (line   22)
  * bundle:                                Darwin Options.     (line  123)
  * bundle_loader:                         Darwin Options.     (line  127)
- * c:                                     Link Options.       (line   20)
- * C:                                     Preprocessor Options.
-                                                              (line  654)
  * c:                                     Overall Options.    (line  156)
  * client_name:                           Darwin Options.     (line  196)
  * compatibility_version:                 Darwin Options.     (line  196)
  * coverage:                              Instrumentation Options.
                                                               (line   46)
  * current_version:                       Darwin Options.     (line  196)
- * d:                                     Developer Options.  (line   18)
  * D:                                     Preprocessor Options.
                                                               (line   46)
! * dA:                                    Developer Options.  (line  226)
  * da:                                    Developer Options.  (line  223)
! * dD <1>:                                Developer Options.  (line  230)
  * dD:                                    Preprocessor Options.
!                                                              (line  628)
  * dead_strip:                            Darwin Options.     (line  196)
  * dependency-file:                       Darwin Options.     (line  196)
  * dH:                                    Developer Options.  (line  234)
  * dI:                                    Preprocessor Options.
!                                                              (line  637)
  * dM:                                    Preprocessor Options.
!                                                              (line  612)
  * dN:                                    Preprocessor Options.
!                                                              (line  634)
! * dP:                                    Developer Options.  (line  242)
  * dp:                                    Developer Options.  (line  237)
  * dU:                                    Preprocessor Options.
!                                                              (line  641)
! * dumpmachine:                           Developer Options.  (line 1047)
! * dumpspecs:                             Developer Options.  (line 1055)
! * dumpversion:                           Developer Options.  (line 1051)
  * dx:                                    Developer Options.  (line  246)
  * dylib_file:                            Darwin Options.     (line  196)
  * dylinker_install_name:                 Darwin Options.     (line  196)
  * dynamic:                               Darwin Options.     (line  196)
  * dynamiclib:                            Darwin Options.     (line  131)
- * E <1>:                                 Link Options.       (line   20)
  * E:                                     Overall Options.    (line  177)
  * EB <1>:                                MIPS Options.       (line    7)
! * EB:                                    ARC Options.        (line  482)
  * EL <1>:                                MIPS Options.       (line   10)
- * EL:                                    ARC Options.        (line  489)
  * exported_symbols_list:                 Darwin Options.     (line  196)
  * F:                                     Darwin Options.     (line   31)
  * fabi-compat-version:                   C++ Dialect Options.
                                                               (line   70)
  * fabi-version:                          C++ Dialect Options.
                                                               (line   24)
! * fada-spec-parent:                      Overall Options.    (line  374)
! * faggressive-loop-optimizations:        Optimize Options.   (line  516)
! * falign-functions:                      Optimize Options.   (line 1512)
! * falign-jumps:                          Optimize Options.   (line 1561)
! * falign-labels:                         Optimize Options.   (line 1530)
! * falign-loops:                          Optimize Options.   (line 1548)
  * fallow-parameterless-variadic-functions: C Dialect Options.
!                                                              (line  191)
  * fasan-shadow-offset:                   Instrumentation Options.
!                                                              (line  279)
! * fassociative-math:                     Optimize Options.   (line 2039)
  * fasynchronous-unwind-tables:           Code Gen Options.   (line  148)
! * fauto-inc-dec:                         Optimize Options.   (line  546)
! * fauto-profile:                         Optimize Options.   (line 1920)
  * fbounds-check:                         Instrumentation Options.
!                                                              (line  327)
! * fbranch-probabilities:                 Optimize Options.   (line 2166)
! * fbranch-target-load-optimize:          Optimize Options.   (line 2288)
! * fbranch-target-load-optimize2:         Optimize Options.   (line 2294)
! * fbtr-bb-exclusive:                     Optimize Options.   (line 2298)
! * fcall-saved:                           Code Gen Options.   (line  370)
! * fcall-used:                            Code Gen Options.   (line  356)
! * fcaller-saves:                         Optimize Options.   (line  899)
  * fcheck-new:                            C++ Dialect Options.
                                                               (line   90)
  * fcheck-pointer-bounds:                 Instrumentation Options.
!                                                              (line  333)
! * fchecking:                             Developer Options.  (line  743)
  * fchkp-check-incomplete-type:           Instrumentation Options.
!                                                              (line  371)
  * fchkp-check-read:                      Instrumentation Options.
!                                                              (line  421)
  * fchkp-check-write:                     Instrumentation Options.
!                                                              (line  425)
  * fchkp-first-field-has-own-bounds:      Instrumentation Options.
!                                                              (line  382)
  * fchkp-instrument-calls:                Instrumentation Options.
!                                                              (line  433)
  * fchkp-instrument-marked-only:          Instrumentation Options.
!                                                              (line  437)
  * fchkp-narrow-bounds:                   Instrumentation Options.
!                                                              (line  375)
  * fchkp-narrow-to-innermost-array:       Instrumentation Options.
!                                                              (line  388)
  * fchkp-optimize:                        Instrumentation Options.
!                                                              (line  393)
  * fchkp-store-bounds:                    Instrumentation Options.
!                                                              (line  429)
  * fchkp-treat-zero-dynamic-size-as-infinite: Instrumentation Options.
!                                                              (line  414)
  * fchkp-use-fast-string-functions:       Instrumentation Options.
!                                                              (line  397)
  * fchkp-use-nochk-string-functions:      Instrumentation Options.
!                                                              (line  401)
  * fchkp-use-static-bounds:               Instrumentation Options.
!                                                              (line  405)
  * fchkp-use-static-const-bounds:         Instrumentation Options.
!                                                              (line  409)
  * fchkp-use-wrappers:                    Instrumentation Options.
!                                                              (line  442)
! * fcilkplus:                             C Dialect Options.  (line  289)
! * fcombine-stack-adjustments:            Optimize Options.   (line  911)
  * fcommon:                               Common Variable Attributes.
!                                                              (line   90)
! * fcompare-debug:                        Developer Options.  (line  836)
! * fcompare-debug-second:                 Developer Options.  (line  862)
! * fcompare-elim:                         Optimize Options.   (line 1873)
  * fconcepts:                             C++ Dialect Options.
                                                               (line  100)
! * fcond-mismatch:                        C Dialect Options.  (line  353)
! * fconserve-stack:                       Optimize Options.   (line  926)
  * fconstant-string-class:                Objective-C and Objective-C++ Dialect Options.
                                                               (line   30)
  * fconstexpr-depth:                      C++ Dialect Options.
                                                               (line  107)
! * fcprop-registers:                      Optimize Options.   (line 1885)
! * fcrossjumping:                         Optimize Options.   (line  539)
! * fcse-follow-jumps:                     Optimize Options.   (line  452)
! * fcse-skip-blocks:                      Optimize Options.   (line  461)
! * fcx-fortran-rules:                     Optimize Options.   (line 2152)
! * fcx-limited-range:                     Optimize Options.   (line 2140)
! * fdata-sections:                        Optimize Options.   (line 2269)
! * fdbg-cnt:                              Developer Options.  (line  971)
! * fdbg-cnt-list:                         Developer Options.  (line  968)
! * fdce:                                  Optimize Options.   (line  552)
  * fdebug-cpp:                            Preprocessor Options.
!                                                              (line  525)
! * fdebug-prefix-map:                     Debugging Options.  (line  145)
! * fdebug-types-section:                  Debugging Options.  (line  185)
! * fdeclone-ctor-dtor:                    Optimize Options.   (line  575)
  * fdeduce-init-list:                     C++ Dialect Options.
                                                               (line  113)
! * fdelayed-branch:                       Optimize Options.   (line  729)
  * fdelete-dead-exceptions:               Code Gen Options.   (line  133)
! * fdelete-null-pointer-checks:           Optimize Options.   (line  586)
! * fdevirtualize:                         Optimize Options.   (line  607)
! * fdevirtualize-at-ltrans:               Optimize Options.   (line  624)
! * fdevirtualize-speculatively:           Optimize Options.   (line  614)
  * fdiagnostics-color:                    Diagnostic Message Formatting Options.
                                                               (line   35)
  * fdiagnostics-show-caret:               Diagnostic Message Formatting Options.
--- 51121,51302 ----
  * Menu:
  
  * ###:                                   Overall Options.    (line  201)
! * -fipa-cp-alignment:                    Optimize Options.   (line 1005)
! * -mfunction-return:                     x86 Options.        (line 1123)
! * -mindirect-branch:                     x86 Options.        (line 1109)
! * -mindirect-branch-register:            x86 Options.        (line 1137)
! * -mlow-precision-recip-sqrt:            AArch64 Options.    (line   87)
! * -mno-low-precision-recip-sqrt:         AArch64 Options.    (line   87)
  * -Wabi-tag:                             C++ Dialect Options.
!                                                              (line  506)
! * -Wno-scalar-storage-order:             Warning Options.    (line 1504)
! * -Wscalar-storage-order:                Warning Options.    (line 1504)
  * A:                                     Preprocessor Options.
!                                                              (line  595)
  * allowable_client:                      Darwin Options.     (line  196)
! * all_load:                              Darwin Options.     (line  110)
  * ansi:                                  Standards.          (line   13)
+ * ansi <1>:                              C Dialect Options.  (line   11)
+ * ansi <2>:                              Preprocessor Options.
+                                                              (line  340)
+ * ansi <3>:                              Other Builtins.     (line   31)
+ * ansi <4>:                              Non-bugs.           (line  107)
  * arch_errors_fatal:                     Darwin Options.     (line  114)
! * aux-info:                              C Dialect Options.  (line  172)
! * B:                                     Directory Options.  (line   44)
  * Bdynamic:                              VxWorks Options.    (line   22)
  * bind_at_load:                          Darwin Options.     (line  118)
  * Bstatic:                               VxWorks Options.    (line   22)
  * bundle:                                Darwin Options.     (line  123)
  * bundle_loader:                         Darwin Options.     (line  127)
  * c:                                     Overall Options.    (line  156)
+ * C:                                     Preprocessor Options.
+                                                              (line  652)
+ * c <1>:                                 Link Options.       (line   20)
  * client_name:                           Darwin Options.     (line  196)
  * compatibility_version:                 Darwin Options.     (line  196)
  * coverage:                              Instrumentation Options.
                                                               (line   46)
  * current_version:                       Darwin Options.     (line  196)
  * D:                                     Preprocessor Options.
                                                               (line   46)
! * d:                                     Developer Options.  (line   18)
  * da:                                    Developer Options.  (line  223)
! * dA:                                    Developer Options.  (line  226)
  * dD:                                    Preprocessor Options.
!                                                              (line  626)
! * dD <1>:                                Developer Options.  (line  230)
  * dead_strip:                            Darwin Options.     (line  196)
  * dependency-file:                       Darwin Options.     (line  196)
  * dH:                                    Developer Options.  (line  234)
  * dI:                                    Preprocessor Options.
!                                                              (line  635)
  * dM:                                    Preprocessor Options.
!                                                              (line  611)
  * dN:                                    Preprocessor Options.
!                                                              (line  632)
  * dp:                                    Developer Options.  (line  237)
+ * dP:                                    Developer Options.  (line  242)
  * dU:                                    Preprocessor Options.
!                                                              (line  639)
! * dumpmachine:                           Developer Options.  (line 1019)
! * dumpspecs:                             Developer Options.  (line 1027)
! * dumpversion:                           Developer Options.  (line 1023)
  * dx:                                    Developer Options.  (line  246)
  * dylib_file:                            Darwin Options.     (line  196)
  * dylinker_install_name:                 Darwin Options.     (line  196)
  * dynamic:                               Darwin Options.     (line  196)
  * dynamiclib:                            Darwin Options.     (line  131)
  * E:                                     Overall Options.    (line  177)
+ * E <1>:                                 Link Options.       (line   20)
+ * EB:                                    ARC Options.        (line  469)
  * EB <1>:                                MIPS Options.       (line    7)
! * EL:                                    ARC Options.        (line  477)
  * EL <1>:                                MIPS Options.       (line   10)
  * exported_symbols_list:                 Darwin Options.     (line  196)
  * F:                                     Darwin Options.     (line   31)
  * fabi-compat-version:                   C++ Dialect Options.
                                                               (line   70)
  * fabi-version:                          C++ Dialect Options.
                                                               (line   24)
! * fada-spec-parent:                      Overall Options.    (line  372)
! * faggressive-loop-optimizations:        Optimize Options.   (line  512)
! * falign-functions:                      Optimize Options.   (line 1507)
! * falign-jumps:                          Optimize Options.   (line 1559)
! * falign-labels:                         Optimize Options.   (line 1526)
! * falign-loops:                          Optimize Options.   (line 1545)
  * fallow-parameterless-variadic-functions: C Dialect Options.
!                                                              (line  188)
  * fasan-shadow-offset:                   Instrumentation Options.
!                                                              (line  286)
! * fassociative-math:                     Optimize Options.   (line 2036)
  * fasynchronous-unwind-tables:           Code Gen Options.   (line  148)
! * fauto-inc-dec:                         Optimize Options.   (line  542)
! * fauto-profile:                         Optimize Options.   (line 1916)
  * fbounds-check:                         Instrumentation Options.
!                                                              (line  334)
! * fbranch-probabilities:                 Optimize Options.   (line 2164)
! * fbranch-target-load-optimize:          Optimize Options.   (line 2286)
! * fbranch-target-load-optimize2:         Optimize Options.   (line 2292)
! * fbtr-bb-exclusive:                     Optimize Options.   (line 2296)
! * fcall-saved:                           Code Gen Options.   (line  368)
! * fcall-used:                            Code Gen Options.   (line  354)
! * fcaller-saves:                         Optimize Options.   (line  894)
  * fcheck-new:                            C++ Dialect Options.
                                                               (line   90)
  * fcheck-pointer-bounds:                 Instrumentation Options.
!                                                              (line  340)
! * fchecking:                             Developer Options.  (line  718)
  * fchkp-check-incomplete-type:           Instrumentation Options.
!                                                              (line  378)
  * fchkp-check-read:                      Instrumentation Options.
!                                                              (line  428)
  * fchkp-check-write:                     Instrumentation Options.
!                                                              (line  432)
  * fchkp-first-field-has-own-bounds:      Instrumentation Options.
!                                                              (line  389)
  * fchkp-instrument-calls:                Instrumentation Options.
!                                                              (line  440)
  * fchkp-instrument-marked-only:          Instrumentation Options.
!                                                              (line  444)
  * fchkp-narrow-bounds:                   Instrumentation Options.
!                                                              (line  382)
  * fchkp-narrow-to-innermost-array:       Instrumentation Options.
!                                                              (line  395)
  * fchkp-optimize:                        Instrumentation Options.
!                                                              (line  400)
  * fchkp-store-bounds:                    Instrumentation Options.
!                                                              (line  436)
  * fchkp-treat-zero-dynamic-size-as-infinite: Instrumentation Options.
!                                                              (line  421)
  * fchkp-use-fast-string-functions:       Instrumentation Options.
!                                                              (line  404)
  * fchkp-use-nochk-string-functions:      Instrumentation Options.
!                                                              (line  408)
  * fchkp-use-static-bounds:               Instrumentation Options.
!                                                              (line  412)
  * fchkp-use-static-const-bounds:         Instrumentation Options.
!                                                              (line  416)
  * fchkp-use-wrappers:                    Instrumentation Options.
!                                                              (line  449)
! * fcilkplus:                             C Dialect Options.  (line  290)
! * fcombine-stack-adjustments:            Optimize Options.   (line  906)
  * fcommon:                               Common Variable Attributes.
!                                                              (line   89)
! * fcompare-debug:                        Developer Options.  (line  811)
! * fcompare-debug-second:                 Developer Options.  (line  837)
! * fcompare-elim:                         Optimize Options.   (line 1869)
  * fconcepts:                             C++ Dialect Options.
                                                               (line  100)
! * fcond-mismatch:                        C Dialect Options.  (line  354)
! * fconserve-stack:                       Optimize Options.   (line  921)
  * fconstant-string-class:                Objective-C and Objective-C++ Dialect Options.
                                                               (line   30)
  * fconstexpr-depth:                      C++ Dialect Options.
                                                               (line  107)
! * fcprop-registers:                      Optimize Options.   (line 1881)
! * fcrossjumping:                         Optimize Options.   (line  535)
! * fcse-follow-jumps:                     Optimize Options.   (line  448)
! * fcse-skip-blocks:                      Optimize Options.   (line  457)
! * fcx-fortran-rules:                     Optimize Options.   (line 2151)
! * fcx-limited-range:                     Optimize Options.   (line 2139)
! * fdata-sections:                        Optimize Options.   (line 2267)
! * fdbg-cnt:                              Developer Options.  (line  943)
! * fdbg-cnt-list:                         Developer Options.  (line  940)
! * fdce:                                  Optimize Options.   (line  548)
  * fdebug-cpp:                            Preprocessor Options.
!                                                              (line  526)
! * fdebug-prefix-map:                     Debugging Options.  (line  144)
! * fdebug-types-section:                  Debugging Options.  (line  184)
! * fdeclone-ctor-dtor:                    Optimize Options.   (line  571)
  * fdeduce-init-list:                     C++ Dialect Options.
                                                               (line  113)
! * fdelayed-branch:                       Optimize Options.   (line  724)
  * fdelete-dead-exceptions:               Code Gen Options.   (line  133)
! * fdelete-null-pointer-checks:           Optimize Options.   (line  582)
! * fdevirtualize:                         Optimize Options.   (line  603)
! * fdevirtualize-at-ltrans:               Optimize Options.   (line  620)
! * fdevirtualize-speculatively:           Optimize Options.   (line  610)
  * fdiagnostics-color:                    Diagnostic Message Formatting Options.
                                                               (line   35)
  * fdiagnostics-show-caret:               Diagnostic Message Formatting Options.
*************** look up both forms.
*** 51738,51757 ****
  * fdiagnostics-show-option:              Diagnostic Message Formatting Options.
                                                               (line   88)
  * fdirectives-only:                      Preprocessor Options.
!                                                              (line  473)
! * fdisable-:                             Developer Options.  (line  676)
! * fdollars-in-identifiers <1>:           Interoperation.     (line  141)
  * fdollars-in-identifiers:               Preprocessor Options.
!                                                              (line  495)
! * fdpic:                                 SH Options.         (line  392)
! * fdse:                                  Optimize Options.   (line  556)
! * fdump-ada-spec:                        Overall Options.    (line  368)
  * fdump-class-hierarchy:                 Developer Options.  (line  281)
! * fdump-final-insns:                     Developer Options.  (line  830)
! * fdump-go-spec:                         Overall Options.    (line  378)
  * fdump-ipa:                             Developer Options.  (line  289)
  * fdump-noaddr:                          Developer Options.  (line  250)
! * fdump-passes:                          Developer Options.  (line  307)
  * fdump-rtl-alignments:                  Developer Options.  (line   42)
  * fdump-rtl-all:                         Developer Options.  (line  223)
  * fdump-rtl-asmcons:                     Developer Options.  (line   45)
--- 51306,51325 ----
  * fdiagnostics-show-option:              Diagnostic Message Formatting Options.
                                                               (line   88)
  * fdirectives-only:                      Preprocessor Options.
!                                                              (line  475)
! * fdisable-:                             Developer Options.  (line  650)
  * fdollars-in-identifiers:               Preprocessor Options.
!                                                              (line  496)
! * fdollars-in-identifiers <1>:           Interoperation.     (line  141)
! * fdpic:                                 SH Options.         (line  388)
! * fdse:                                  Optimize Options.   (line  552)
! * fdump-ada-spec:                        Overall Options.    (line  367)
  * fdump-class-hierarchy:                 Developer Options.  (line  281)
! * fdump-final-insns:                     Developer Options.  (line  805)
! * fdump-go-spec:                         Overall Options.    (line  376)
  * fdump-ipa:                             Developer Options.  (line  289)
  * fdump-noaddr:                          Developer Options.  (line  250)
! * fdump-passes:                          Developer Options.  (line  306)
  * fdump-rtl-alignments:                  Developer Options.  (line   42)
  * fdump-rtl-all:                         Developer Options.  (line  223)
  * fdump-rtl-asmcons:                     Developer Options.  (line   45)
*************** look up both forms.
*** 51760,51765 ****
--- 51328,51334 ----
  * fdump-rtl-bbpart:                      Developer Options.  (line   56)
  * fdump-rtl-bbro:                        Developer Options.  (line   59)
  * fdump-rtl-btl2:                        Developer Options.  (line   63)
+ * fdump-rtl-btl2 <1>:                    Developer Options.  (line   63)
  * fdump-rtl-bypass:                      Developer Options.  (line   67)
  * fdump-rtl-ce1:                         Developer Options.  (line   78)
  * fdump-rtl-ce2:                         Developer Options.  (line   78)
*************** look up both forms.
*** 51819,52130 ****
  * fdump-rtl-vartrack:                    Developer Options.  (line  206)
  * fdump-rtl-vregs:                       Developer Options.  (line  209)
  * fdump-rtl-web:                         Developer Options.  (line  212)
! * fdump-statistics:                      Developer Options.  (line  311)
  * fdump-translation-unit:                Developer Options.  (line  272)
! * fdump-tree:                            Developer Options.  (line  323)
! * fdump-tree-alias:                      Developer Options.  (line  467)
! * fdump-tree-all:                        Developer Options.  (line  557)
! * fdump-tree-backprop:                   Developer Options.  (line  523)
! * fdump-tree-ccp:                        Developer Options.  (line  471)
! * fdump-tree-cfg:                        Developer Options.  (line  455)
! * fdump-tree-ch:                         Developer Options.  (line  459)
! * fdump-tree-copyprop:                   Developer Options.  (line  487)
! * fdump-tree-dce:                        Developer Options.  (line  495)
! * fdump-tree-dom:                        Developer Options.  (line  508)
! * fdump-tree-dse:                        Developer Options.  (line  513)
! * fdump-tree-forwprop:                   Developer Options.  (line  528)
! * fdump-tree-fre:                        Developer Options.  (line  483)
! * fdump-tree-gimple:                     Developer Options.  (line  450)
! * fdump-tree-nrv:                        Developer Options.  (line  533)
! * fdump-tree-oaccdevlow:                 Developer Options.  (line  552)
! * fdump-tree-optimized:                  Developer Options.  (line  447)
! * fdump-tree-original:                   Developer Options.  (line  444)
! * fdump-tree-phiopt:                     Developer Options.  (line  518)
! * fdump-tree-pre:                        Developer Options.  (line  479)
! * fdump-tree-sink:                       Developer Options.  (line  504)
! * fdump-tree-slp:                        Developer Options.  (line  543)
! * fdump-tree-split-paths:                Developer Options.  (line  430)
! * fdump-tree-sra:                        Developer Options.  (line  499)
! * fdump-tree-ssa:                        Developer Options.  (line  463)
! * fdump-tree-store_copyprop:             Developer Options.  (line  491)
! * fdump-tree-storeccp:                   Developer Options.  (line  475)
! * fdump-tree-vect:                       Developer Options.  (line  538)
! * fdump-tree-vrp:                        Developer Options.  (line  548)
  * fdump-unnumbered:                      Developer Options.  (line  260)
  * fdump-unnumbered-links:                Developer Options.  (line  266)
! * fdwarf2-cfi-asm:                       Debugging Options.  (line  300)
! * fearly-inlining:                       Optimize Options.   (line  295)
! * feliminate-dwarf2-dups:                Debugging Options.  (line  226)
! * feliminate-unused-debug-symbols:       Debugging Options.  (line  126)
! * feliminate-unused-debug-types:         Debugging Options.  (line  304)
! * femit-class-debug-always:              Debugging Options.  (line  130)
! * femit-struct-debug-baseonly:           Debugging Options.  (line  231)
! * femit-struct-debug-detailed:           Debugging Options.  (line  258)
! * femit-struct-debug-reduced:            Debugging Options.  (line  244)
! * fenable-:                              Developer Options.  (line  676)
! * fexceptions:                           Code Gen Options.   (line  110)
! * fexcess-precision:                     Optimize Options.   (line 1967)
  * fexec-charset:                         Preprocessor Options.
                                                               (line  553)
! * fexpensive-optimizations:              Optimize Options.   (line  631)
  * fext-numeric-literals:                 C++ Dialect Options.
!                                                              (line  600)
  * fextended-identifiers:                 Preprocessor Options.
!                                                              (line  498)
  * fextern-tls-init:                      C++ Dialect Options.
!                                                              (line  163)
! * ffast-math:                            Optimize Options.   (line 1990)
! * ffat-lto-objects:                      Optimize Options.   (line 1854)
! * ffinite-math-only:                     Optimize Options.   (line 2064)
  * ffix-and-continue:                     Darwin Options.     (line  104)
! * ffixed:                                Code Gen Options.   (line  344)
  * ffloat-store <1>:                      Disappointments.    (line   77)
- * ffloat-store:                          Optimize Options.   (line 1953)
  * ffor-scope:                            C++ Dialect Options.
!                                                              (line  184)
! * fforward-propagate:                    Optimize Options.   (line  198)
! * ffp-contract:                          Optimize Options.   (line  207)
! * ffreestanding <1>:                     Common Function Attributes.
!                                                              (line  274)
! * ffreestanding <2>:                     Warning Options.    (line  285)
! * ffreestanding <3>:                     C Dialect Options.  (line  253)
  * ffreestanding:                         Standards.          (line   91)
  * ffriend-injection:                     C++ Dialect Options.
                                                               (line  134)
! * ffunction-sections:                    Optimize Options.   (line 2269)
! * fgcse:                                 Optimize Options.   (line  475)
! * fgcse-after-reload:                    Optimize Options.   (line  511)
! * fgcse-las:                             Optimize Options.   (line  504)
! * fgcse-lm:                              Optimize Options.   (line  486)
! * fgcse-sm:                              Optimize Options.   (line  495)
  * fgnu-runtime:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line   39)
! * fgnu-tm:                               C Dialect Options.  (line  299)
! * fgnu89-inline:                         C Dialect Options.  (line  158)
! * fgraphite-identity:                    Optimize Options.   (line 1130)
! * fhoist-adjacent-loads:                 Optimize Options.   (line  959)
! * fhosted:                               C Dialect Options.  (line  246)
! * fif-conversion:                        Optimize Options.   (line  560)
! * fif-conversion2:                       Optimize Options.   (line  569)
  * filelist:                              Darwin Options.     (line  196)
  * findirect-data:                        Darwin Options.     (line  104)
! * findirect-inlining:                    Optimize Options.   (line  268)
! * finhibit-size-directive:               Code Gen Options.   (line  246)
! * finline-functions:                     Optimize Options.   (line  276)
! * finline-functions-called-once:         Optimize Options.   (line  287)
! * finline-limit:                         Optimize Options.   (line  312)
! * finline-small-functions:               Optimize Options.   (line  259)
  * finput-charset:                        Preprocessor Options.
                                                               (line  566)
- * finstrument-functions <1>:             Common Function Attributes.
-                                                              (line  496)
  * finstrument-functions:                 Instrumentation Options.
!                                                              (line  597)
  * finstrument-functions-exclude-file-list: Instrumentation Options.
!                                                              (line  633)
  * finstrument-functions-exclude-function-list: Instrumentation Options.
!                                                              (line  653)
! * fipa-cp:                               Optimize Options.   (line  992)
! * fipa-cp-clone:                         Optimize Options.   (line 1000)
! * fipa-icf:                              Optimize Options.   (line 1017)
! * fipa-profile:                          Optimize Options.   (line  984)
! * fipa-pta:                              Optimize Options.   (line  978)
! * fipa-pure-const:                       Optimize Options.   (line  970)
! * fipa-ra:                               Optimize Options.   (line  917)
! * fipa-reference:                        Optimize Options.   (line  974)
! * fipa-sra:                              Optimize Options.   (line  305)
! * fira-algorithm:                        Optimize Options.   (line  665)
! * fira-hoist-pressure:                   Optimize Options.   (line  695)
! * fira-loop-pressure:                    Optimize Options.   (line  702)
! * fira-region:                           Optimize Options.   (line  673)
! * fira-verbose:                          Developer Options.  (line  895)
! * fisolate-erroneous-paths-attribute:    Optimize Options.   (line 1039)
! * fisolate-erroneous-paths-dereference:  Optimize Options.   (line 1031)
  * fivar-visibility:                      Objective-C and Objective-C++ Dialect Options.
                                                               (line  162)
! * fivopts:                               Optimize Options.   (line 1232)
  * fkeep-inline-functions <1>:            Inline.             (line   51)
! * fkeep-inline-functions:                Optimize Options.   (line  344)
! * fkeep-static-consts:                   Optimize Options.   (line  355)
! * fkeep-static-functions:                Optimize Options.   (line  351)
  * flat_namespace:                        Darwin Options.     (line  196)
! * flax-vector-conversions:               C Dialect Options.  (line  358)
! * fleading-underscore:                   Code Gen Options.   (line  400)
! * flive-range-shrinkage:                 Optimize Options.   (line  660)
  * flocal-ivars:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line  153)
! * floop-block:                           Optimize Options.   (line 1124)
! * floop-interchange:                     Optimize Options.   (line 1124)
! * floop-nest-optimize:                   Optimize Options.   (line 1138)
! * floop-parallelize-all:                 Optimize Options.   (line 1144)
! * floop-strip-mine:                      Optimize Options.   (line 1124)
! * floop-unroll-and-jam:                  Optimize Options.   (line 1124)
! * flra-remat:                            Optimize Options.   (line  722)
! * flto:                                  Optimize Options.   (line 1615)
! * flto-compression-level:                Optimize Options.   (line 1828)
! * flto-odr-type-merging:                 Optimize Options.   (line 1822)
! * flto-partition:                        Optimize Options.   (line 1808)
! * flto-report:                           Developer Options.  (line  901)
! * flto-report-wpa:                       Developer Options.  (line  909)
  * fmax-errors:                           Warning Options.    (line   18)
! * fmem-report:                           Developer Options.  (line  913)
! * fmem-report-wpa:                       Developer Options.  (line  917)
! * fmerge-all-constants:                  Optimize Options.   (line  374)
! * fmerge-constants:                      Optimize Options.   (line  364)
! * fmerge-debug-strings:                  Debugging Options.  (line  138)
  * fmessage-length:                       Diagnostic Message Formatting Options.
                                                               (line   14)
! * fmodulo-sched:                         Optimize Options.   (line  385)
! * fmodulo-sched-allow-regmoves:          Optimize Options.   (line  390)
! * fmove-loop-invariants:                 Optimize Options.   (line 2259)
! * fms-extensions <1>:                    Unnamed Fields.     (line   36)
! * fms-extensions <2>:                    C++ Dialect Options.
!                                                              (line  219)
! * fms-extensions:                        C Dialect Options.  (line  314)
  * fnext-runtime:                         Objective-C and Objective-C++ Dialect Options.
                                                               (line   43)
  * fno-access-control:                    C++ Dialect Options.
                                                               (line   86)
! * fno-asm:                               C Dialect Options.  (line  198)
! * fno-branch-count-reg:                  Optimize Options.   (line  397)
! * fno-builtin <1>:                       Other Builtins.     (line   21)
  * fno-builtin <2>:                       Common Function Attributes.
                                                               (line  274)
! * fno-builtin <3>:                       Warning Options.    (line  285)
! * fno-builtin:                           C Dialect Options.  (line  212)
  * fno-canonical-system-headers:          Preprocessor Options.
!                                                              (line  502)
  * fno-check-pointer-bounds:              Instrumentation Options.
!                                                              (line  333)
! * fno-checking:                          Developer Options.  (line  743)
  * fno-chkp-check-incomplete-type:        Instrumentation Options.
!                                                              (line  371)
  * fno-chkp-check-read:                   Instrumentation Options.
!                                                              (line  421)
  * fno-chkp-check-write:                  Instrumentation Options.
!                                                              (line  425)
  * fno-chkp-first-field-has-own-bounds:   Instrumentation Options.
!                                                              (line  382)
  * fno-chkp-instrument-calls:             Instrumentation Options.
!                                                              (line  433)
  * fno-chkp-instrument-marked-only:       Instrumentation Options.
!                                                              (line  437)
  * fno-chkp-narrow-bounds:                Instrumentation Options.
!                                                              (line  375)
  * fno-chkp-narrow-to-innermost-array:    Instrumentation Options.
!                                                              (line  388)
  * fno-chkp-optimize:                     Instrumentation Options.
!                                                              (line  393)
  * fno-chkp-store-bounds:                 Instrumentation Options.
!                                                              (line  429)
  * fno-chkp-treat-zero-dynamic-size-as-infinite: Instrumentation Options.
!                                                              (line  414)
  * fno-chkp-use-fast-string-functions:    Instrumentation Options.
!                                                              (line  397)
  * fno-chkp-use-nochk-string-functions:   Instrumentation Options.
!                                                              (line  401)
  * fno-chkp-use-static-bounds:            Instrumentation Options.
!                                                              (line  405)
  * fno-chkp-use-static-const-bounds:      Instrumentation Options.
!                                                              (line  409)
  * fno-chkp-use-wrappers:                 Instrumentation Options.
!                                                              (line  442)
! * fno-common <1>:                        Common Variable Attributes.
!                                                              (line   90)
  * fno-common:                            Code Gen Options.   (line  223)
! * fno-compare-debug:                     Developer Options.  (line  836)
! * fno-debug-types-section:               Debugging Options.  (line  185)
  * fno-default-inline:                    Inline.             (line   68)
! * fno-defer-pop:                         Optimize Options.   (line  190)
  * fno-diagnostics-show-caret:            Diagnostic Message Formatting Options.
                                                               (line   94)
  * fno-diagnostics-show-option:           Diagnostic Message Formatting Options.
                                                               (line   88)
! * fno-dwarf2-cfi-asm:                    Debugging Options.  (line  300)
  * fno-elide-constructors:                C++ Dialect Options.
                                                               (line  146)
! * fno-eliminate-unused-debug-types:      Debugging Options.  (line  304)
  * fno-enforce-eh-specs:                  C++ Dialect Options.
                                                               (line  152)
  * fno-ext-numeric-literals:              C++ Dialect Options.
!                                                              (line  600)
  * fno-extern-tls-init:                   C++ Dialect Options.
!                                                              (line  163)
  * fno-for-scope:                         C++ Dialect Options.
!                                                              (line  184)
! * fno-function-cse:                      Optimize Options.   (line  412)
  * fno-gnu-keywords:                      C++ Dialect Options.
!                                                              (line  196)
  * fno-gnu-unique:                        Code Gen Options.   (line  154)
! * fno-guess-branch-probability:          Optimize Options.   (line 1371)
! * fno-ident:                             Code Gen Options.   (line  243)
! * fno-implement-inlines <1>:             C++ Interface.      (line   66)
  * fno-implement-inlines:                 C++ Dialect Options.
!                                                              (line  214)
  * fno-implicit-inline-templates:         C++ Dialect Options.
!                                                              (line  208)
  * fno-implicit-templates <1>:            Template Instantiation.
                                                               (line  118)
! * fno-implicit-templates:                C++ Dialect Options.
!                                                              (line  202)
! * fno-inline:                            Optimize Options.   (line  251)
! * fno-ira-share-save-slots:              Optimize Options.   (line  710)
! * fno-ira-share-spill-slots:             Optimize Options.   (line  716)
! * fno-jump-tables:                       Code Gen Options.   (line  336)
! * fno-keep-inline-dllexport:             Optimize Options.   (line  338)
! * fno-lifetime-dse:                      Optimize Options.   (line  645)
  * fno-local-ivars:                       Objective-C and Objective-C++ Dialect Options.
                                                               (line  153)
! * fno-math-errno:                        Optimize Options.   (line 2004)
! * fno-merge-debug-strings:               Debugging Options.  (line  138)
  * fno-nil-receivers:                     Objective-C and Objective-C++ Dialect Options.
                                                               (line   49)
  * fno-nonansi-builtins:                  C++ Dialect Options.
!                                                              (line  224)
  * fno-operator-names:                    C++ Dialect Options.
!                                                              (line  240)
  * fno-optional-diags:                    C++ Dialect Options.
!                                                              (line  244)
! * fno-peephole:                          Optimize Options.   (line 1362)
! * fno-peephole2:                         Optimize Options.   (line 1362)
! * fno-plt:                               Code Gen Options.   (line  318)
  * fno-pretty-templates:                  C++ Dialect Options.
!                                                              (line  254)
  * fno-rtti:                              C++ Dialect Options.
!                                                              (line  271)
  * fno-sanitize-recover:                  Instrumentation Options.
!                                                              (line  288)
  * fno-sanitize=all:                      Instrumentation Options.
!                                                              (line  274)
! * fno-sched-interblock:                  Optimize Options.   (line  755)
! * fno-sched-spec:                        Optimize Options.   (line  760)
  * fno-set-stack-executable:              x86 Windows Options.
                                                               (line   46)
  * fno-show-column:                       Preprocessor Options.
!                                                              (line  591)
! * fno-signed-bitfields:                  C Dialect Options.  (line  391)
! * fno-signed-zeros:                      Optimize Options.   (line 2076)
  * fno-stack-limit:                       Instrumentation Options.
!                                                              (line  509)
  * fno-threadsafe-statics:                C++ Dialect Options.
!                                                              (line  313)
! * fno-toplevel-reorder:                  Optimize Options.   (line 1581)
! * fno-trapping-math:                     Optimize Options.   (line 2086)
! * fno-unsigned-bitfields:                C Dialect Options.  (line  391)
  * fno-use-cxa-get-exception-ptr:         C++ Dialect Options.
!                                                              (line  326)
! * fno-var-tracking-assignments:          Debugging Options.  (line  159)
! * fno-var-tracking-assignments-toggle:   Developer Options.  (line  883)
  * fno-weak:                              C++ Dialect Options.
!                                                              (line  388)
  * fno-working-directory:                 Preprocessor Options.
                                                               (line  576)
  * fno-writable-relocated-rdata:          x86 Windows Options.
                                                               (line   53)
! * fno-zero-initialized-in-bss:           Optimize Options.   (line  423)
! * fnon-call-exceptions:                  Code Gen Options.   (line  124)
  * fnothrow-opt:                          C++ Dialect Options.
!                                                              (line  229)
  * fobjc-abi-version:                     Objective-C and Objective-C++ Dialect Options.
                                                               (line   56)
  * fobjc-call-cxx-cdtors:                 Objective-C and Objective-C++ Dialect Options.
--- 51388,51699 ----
  * fdump-rtl-vartrack:                    Developer Options.  (line  206)
  * fdump-rtl-vregs:                       Developer Options.  (line  209)
  * fdump-rtl-web:                         Developer Options.  (line  212)
! * fdump-statistics:                      Developer Options.  (line  310)
  * fdump-translation-unit:                Developer Options.  (line  272)
! * fdump-tree:                            Developer Options.  (line  322)
! * fdump-tree-alias:                      Developer Options.  (line  449)
! * fdump-tree-all:                        Developer Options.  (line  538)
! * fdump-tree-backprop:                   Developer Options.  (line  504)
! * fdump-tree-ccp:                        Developer Options.  (line  453)
! * fdump-tree-cfg:                        Developer Options.  (line  437)
! * fdump-tree-ch:                         Developer Options.  (line  441)
! * fdump-tree-copyprop:                   Developer Options.  (line  469)
! * fdump-tree-dce:                        Developer Options.  (line  477)
! * fdump-tree-dom:                        Developer Options.  (line  490)
! * fdump-tree-dse:                        Developer Options.  (line  495)
! * fdump-tree-forwprop:                   Developer Options.  (line  509)
! * fdump-tree-fre:                        Developer Options.  (line  465)
! * fdump-tree-gimple:                     Developer Options.  (line  432)
! * fdump-tree-nrv:                        Developer Options.  (line  514)
! * fdump-tree-oaccdevlow:                 Developer Options.  (line  533)
! * fdump-tree-optimized:                  Developer Options.  (line  429)
! * fdump-tree-original:                   Developer Options.  (line  426)
! * fdump-tree-phiopt:                     Developer Options.  (line  499)
! * fdump-tree-pre:                        Developer Options.  (line  461)
! * fdump-tree-sink:                       Developer Options.  (line  486)
! * fdump-tree-slp:                        Developer Options.  (line  524)
! * fdump-tree-split-paths:                Developer Options.  (line  411)
! * fdump-tree-sra:                        Developer Options.  (line  481)
! * fdump-tree-ssa:                        Developer Options.  (line  445)
! * fdump-tree-storeccp:                   Developer Options.  (line  457)
! * fdump-tree-store_copyprop:             Developer Options.  (line  473)
! * fdump-tree-vect:                       Developer Options.  (line  519)
! * fdump-tree-vrp:                        Developer Options.  (line  529)
  * fdump-unnumbered:                      Developer Options.  (line  260)
  * fdump-unnumbered-links:                Developer Options.  (line  266)
! * fdwarf2-cfi-asm:                       Debugging Options.  (line  298)
! * fearly-inlining:                       Optimize Options.   (line  293)
! * feliminate-dwarf2-dups:                Debugging Options.  (line  224)
! * feliminate-unused-debug-symbols:       Debugging Options.  (line  125)
! * feliminate-unused-debug-types:         Debugging Options.  (line  302)
! * femit-class-debug-always:              Debugging Options.  (line  129)
! * femit-struct-debug-baseonly:           Debugging Options.  (line  229)
! * femit-struct-debug-detailed:           Debugging Options.  (line  256)
! * femit-struct-debug-reduced:            Debugging Options.  (line  242)
! * fenable-:                              Developer Options.  (line  650)
! * fexceptions:                           Code Gen Options.   (line  111)
! * fexcess-precision:                     Optimize Options.   (line 1963)
  * fexec-charset:                         Preprocessor Options.
                                                               (line  553)
! * fexpensive-optimizations:              Optimize Options.   (line  627)
  * fext-numeric-literals:                 C++ Dialect Options.
!                                                              (line  596)
  * fextended-identifiers:                 Preprocessor Options.
!                                                              (line  499)
  * fextern-tls-init:                      C++ Dialect Options.
!                                                              (line  162)
! * ffast-math:                            Optimize Options.   (line 1986)
! * ffat-lto-objects:                      Optimize Options.   (line 1851)
! * ffinite-math-only:                     Optimize Options.   (line 2063)
  * ffix-and-continue:                     Darwin Options.     (line  104)
! * ffixed:                                Code Gen Options.   (line  342)
! * ffloat-store:                          Optimize Options.   (line 1949)
  * ffloat-store <1>:                      Disappointments.    (line   77)
  * ffor-scope:                            C++ Dialect Options.
!                                                              (line  183)
! * fforward-propagate:                    Optimize Options.   (line  197)
! * ffp-contract:                          Optimize Options.   (line  206)
  * ffreestanding:                         Standards.          (line   91)
+ * ffreestanding <1>:                     C Dialect Options.  (line  251)
+ * ffreestanding <2>:                     Warning Options.    (line  283)
+ * ffreestanding <3>:                     Common Function Attributes.
+                                                              (line  274)
  * ffriend-injection:                     C++ Dialect Options.
                                                               (line  134)
! * ffunction-sections:                    Optimize Options.   (line 2267)
! * fgcse:                                 Optimize Options.   (line  471)
! * fgcse-after-reload:                    Optimize Options.   (line  507)
! * fgcse-las:                             Optimize Options.   (line  500)
! * fgcse-lm:                              Optimize Options.   (line  482)
! * fgcse-sm:                              Optimize Options.   (line  491)
  * fgnu-runtime:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line   39)
! * fgnu-tm:                               C Dialect Options.  (line  300)
! * fgnu89-inline:                         C Dialect Options.  (line  155)
! * fgraphite-identity:                    Optimize Options.   (line 1125)
! * fhoist-adjacent-loads:                 Optimize Options.   (line  954)
! * fhosted:                               C Dialect Options.  (line  243)
! * fif-conversion:                        Optimize Options.   (line  556)
! * fif-conversion2:                       Optimize Options.   (line  565)
  * filelist:                              Darwin Options.     (line  196)
  * findirect-data:                        Darwin Options.     (line  104)
! * findirect-inlining:                    Optimize Options.   (line  266)
! * finhibit-size-directive:               Code Gen Options.   (line  245)
! * finline-functions:                     Optimize Options.   (line  274)
! * finline-functions-called-once:         Optimize Options.   (line  285)
! * finline-limit:                         Optimize Options.   (line  309)
! * finline-small-functions:               Optimize Options.   (line  257)
  * finput-charset:                        Preprocessor Options.
                                                               (line  566)
  * finstrument-functions:                 Instrumentation Options.
!                                                              (line  603)
! * finstrument-functions <1>:             Common Function Attributes.
!                                                              (line  492)
  * finstrument-functions-exclude-file-list: Instrumentation Options.
!                                                              (line  638)
  * finstrument-functions-exclude-function-list: Instrumentation Options.
!                                                              (line  659)
! * fipa-cp:                               Optimize Options.   (line  987)
! * fipa-cp-clone:                         Optimize Options.   (line  995)
! * fipa-icf:                              Optimize Options.   (line 1012)
! * fipa-profile:                          Optimize Options.   (line  979)
! * fipa-pta:                              Optimize Options.   (line  973)
! * fipa-pure-const:                       Optimize Options.   (line  965)
! * fipa-ra:                               Optimize Options.   (line  912)
! * fipa-reference:                        Optimize Options.   (line  969)
! * fipa-sra:                              Optimize Options.   (line  302)
! * fira-algorithm:                        Optimize Options.   (line  661)
! * fira-hoist-pressure:                   Optimize Options.   (line  690)
! * fira-loop-pressure:                    Optimize Options.   (line  697)
! * fira-region:                           Optimize Options.   (line  669)
! * fira-verbose:                          Developer Options.  (line  870)
! * fisolate-erroneous-paths-attribute:    Optimize Options.   (line 1034)
! * fisolate-erroneous-paths-dereference:  Optimize Options.   (line 1026)
  * fivar-visibility:                      Objective-C and Objective-C++ Dialect Options.
                                                               (line  162)
! * fivopts:                               Optimize Options.   (line 1227)
! * fkeep-inline-functions:                Optimize Options.   (line  340)
  * fkeep-inline-functions <1>:            Inline.             (line   51)
! * fkeep-static-consts:                   Optimize Options.   (line  351)
! * fkeep-static-functions:                Optimize Options.   (line  347)
  * flat_namespace:                        Darwin Options.     (line  196)
! * flax-vector-conversions:               C Dialect Options.  (line  359)
! * fleading-underscore:                   Code Gen Options.   (line  398)
! * flive-range-shrinkage:                 Optimize Options.   (line  656)
  * flocal-ivars:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line  153)
! * floop-block:                           Optimize Options.   (line 1119)
! * floop-interchange:                     Optimize Options.   (line 1119)
! * floop-nest-optimize:                   Optimize Options.   (line 1133)
! * floop-parallelize-all:                 Optimize Options.   (line 1139)
! * floop-strip-mine:                      Optimize Options.   (line 1119)
! * floop-unroll-and-jam:                  Optimize Options.   (line 1119)
! * flra-remat:                            Optimize Options.   (line  717)
! * flto:                                  Optimize Options.   (line 1614)
! * flto-compression-level:                Optimize Options.   (line 1825)
! * flto-odr-type-merging:                 Optimize Options.   (line 1820)
! * flto-partition:                        Optimize Options.   (line 1806)
! * flto-report:                           Developer Options.  (line  876)
! * flto-report-wpa:                       Developer Options.  (line  884)
  * fmax-errors:                           Warning Options.    (line   18)
! * fmem-report:                           Developer Options.  (line  888)
! * fmem-report-wpa:                       Developer Options.  (line  892)
! * fmerge-all-constants:                  Optimize Options.   (line  370)
! * fmerge-constants:                      Optimize Options.   (line  360)
! * fmerge-debug-strings:                  Debugging Options.  (line  137)
  * fmessage-length:                       Diagnostic Message Formatting Options.
                                                               (line   14)
! * fmodulo-sched:                         Optimize Options.   (line  381)
! * fmodulo-sched-allow-regmoves:          Optimize Options.   (line  386)
! * fmove-loop-invariants:                 Optimize Options.   (line 2257)
! * fms-extensions:                        C Dialect Options.  (line  315)
! * fms-extensions <1>:                    C++ Dialect Options.
!                                                              (line  218)
! * fms-extensions <2>:                    Unnamed Fields.     (line   36)
  * fnext-runtime:                         Objective-C and Objective-C++ Dialect Options.
                                                               (line   43)
  * fno-access-control:                    C++ Dialect Options.
                                                               (line   86)
! * fno-asm:                               C Dialect Options.  (line  195)
! * fno-branch-count-reg:                  Optimize Options.   (line  393)
! * fno-builtin:                           C Dialect Options.  (line  209)
! * fno-builtin <1>:                       Warning Options.    (line  283)
  * fno-builtin <2>:                       Common Function Attributes.
                                                               (line  274)
! * fno-builtin <3>:                       Other Builtins.     (line   21)
  * fno-canonical-system-headers:          Preprocessor Options.
!                                                              (line  503)
  * fno-check-pointer-bounds:              Instrumentation Options.
!                                                              (line  340)
! * fno-checking:                          Developer Options.  (line  718)
  * fno-chkp-check-incomplete-type:        Instrumentation Options.
!                                                              (line  378)
  * fno-chkp-check-read:                   Instrumentation Options.
!                                                              (line  428)
  * fno-chkp-check-write:                  Instrumentation Options.
!                                                              (line  432)
  * fno-chkp-first-field-has-own-bounds:   Instrumentation Options.
!                                                              (line  389)
  * fno-chkp-instrument-calls:             Instrumentation Options.
!                                                              (line  440)
  * fno-chkp-instrument-marked-only:       Instrumentation Options.
!                                                              (line  444)
  * fno-chkp-narrow-bounds:                Instrumentation Options.
!                                                              (line  382)
  * fno-chkp-narrow-to-innermost-array:    Instrumentation Options.
!                                                              (line  395)
  * fno-chkp-optimize:                     Instrumentation Options.
!                                                              (line  400)
  * fno-chkp-store-bounds:                 Instrumentation Options.
!                                                              (line  436)
  * fno-chkp-treat-zero-dynamic-size-as-infinite: Instrumentation Options.
!                                                              (line  421)
  * fno-chkp-use-fast-string-functions:    Instrumentation Options.
!                                                              (line  404)
  * fno-chkp-use-nochk-string-functions:   Instrumentation Options.
!                                                              (line  408)
  * fno-chkp-use-static-bounds:            Instrumentation Options.
!                                                              (line  412)
  * fno-chkp-use-static-const-bounds:      Instrumentation Options.
!                                                              (line  416)
  * fno-chkp-use-wrappers:                 Instrumentation Options.
!                                                              (line  449)
  * fno-common:                            Code Gen Options.   (line  223)
! * fno-common <1>:                        Common Variable Attributes.
!                                                              (line   89)
! * fno-compare-debug:                     Developer Options.  (line  811)
! * fno-debug-types-section:               Debugging Options.  (line  184)
  * fno-default-inline:                    Inline.             (line   68)
! * fno-defer-pop:                         Optimize Options.   (line  189)
  * fno-diagnostics-show-caret:            Diagnostic Message Formatting Options.
                                                               (line   94)
  * fno-diagnostics-show-option:           Diagnostic Message Formatting Options.
                                                               (line   88)
! * fno-dwarf2-cfi-asm:                    Debugging Options.  (line  298)
  * fno-elide-constructors:                C++ Dialect Options.
                                                               (line  146)
! * fno-eliminate-unused-debug-types:      Debugging Options.  (line  302)
  * fno-enforce-eh-specs:                  C++ Dialect Options.
                                                               (line  152)
  * fno-ext-numeric-literals:              C++ Dialect Options.
!                                                              (line  596)
  * fno-extern-tls-init:                   C++ Dialect Options.
!                                                              (line  162)
  * fno-for-scope:                         C++ Dialect Options.
!                                                              (line  183)
! * fno-function-cse:                      Optimize Options.   (line  408)
  * fno-gnu-keywords:                      C++ Dialect Options.
!                                                              (line  195)
  * fno-gnu-unique:                        Code Gen Options.   (line  154)
! * fno-guess-branch-probability:          Optimize Options.   (line 1366)
! * fno-ident:                             Code Gen Options.   (line  242)
  * fno-implement-inlines:                 C++ Dialect Options.
!                                                              (line  213)
! * fno-implement-inlines <1>:             C++ Interface.      (line   66)
  * fno-implicit-inline-templates:         C++ Dialect Options.
!                                                              (line  207)
! * fno-implicit-templates:                C++ Dialect Options.
!                                                              (line  201)
  * fno-implicit-templates <1>:            Template Instantiation.
                                                               (line  118)
! * fno-inline:                            Optimize Options.   (line  249)
! * fno-ira-share-save-slots:              Optimize Options.   (line  705)
! * fno-ira-share-spill-slots:             Optimize Options.   (line  711)
! * fno-jump-tables:                       Code Gen Options.   (line  334)
! * fno-keep-inline-dllexport:             Optimize Options.   (line  334)
! * fno-lifetime-dse:                      Optimize Options.   (line  641)
  * fno-local-ivars:                       Objective-C and Objective-C++ Dialect Options.
                                                               (line  153)
! * fno-math-errno:                        Optimize Options.   (line 2000)
! * fno-merge-debug-strings:               Debugging Options.  (line  137)
  * fno-nil-receivers:                     Objective-C and Objective-C++ Dialect Options.
                                                               (line   49)
  * fno-nonansi-builtins:                  C++ Dialect Options.
!                                                              (line  223)
  * fno-operator-names:                    C++ Dialect Options.
!                                                              (line  239)
  * fno-optional-diags:                    C++ Dialect Options.
!                                                              (line  243)
! * fno-peephole:                          Optimize Options.   (line 1357)
! * fno-peephole2:                         Optimize Options.   (line 1357)
! * fno-plt:                               Code Gen Options.   (line  316)
  * fno-pretty-templates:                  C++ Dialect Options.
!                                                              (line  253)
  * fno-rtti:                              C++ Dialect Options.
!                                                              (line  270)
  * fno-sanitize-recover:                  Instrumentation Options.
!                                                              (line  295)
  * fno-sanitize=all:                      Instrumentation Options.
!                                                              (line  280)
! * fno-sched-interblock:                  Optimize Options.   (line  750)
! * fno-sched-spec:                        Optimize Options.   (line  755)
  * fno-set-stack-executable:              x86 Windows Options.
                                                               (line   46)
  * fno-show-column:                       Preprocessor Options.
!                                                              (line  590)
! * fno-signed-bitfields:                  C Dialect Options.  (line  392)
! * fno-signed-zeros:                      Optimize Options.   (line 2075)
  * fno-stack-limit:                       Instrumentation Options.
!                                                              (line  515)
  * fno-threadsafe-statics:                C++ Dialect Options.
!                                                              (line  312)
! * fno-toplevel-reorder:                  Optimize Options.   (line 1580)
! * fno-trapping-math:                     Optimize Options.   (line 2085)
! * fno-unsigned-bitfields:                C Dialect Options.  (line  392)
  * fno-use-cxa-get-exception-ptr:         C++ Dialect Options.
!                                                              (line  325)
! * fno-var-tracking-assignments:          Debugging Options.  (line  158)
! * fno-var-tracking-assignments-toggle:   Developer Options.  (line  858)
  * fno-weak:                              C++ Dialect Options.
!                                                              (line  387)
  * fno-working-directory:                 Preprocessor Options.
                                                               (line  576)
  * fno-writable-relocated-rdata:          x86 Windows Options.
                                                               (line   53)
! * fno-zero-initialized-in-bss:           Optimize Options.   (line  419)
! * fnon-call-exceptions:                  Code Gen Options.   (line  125)
  * fnothrow-opt:                          C++ Dialect Options.
!                                                              (line  228)
  * fobjc-abi-version:                     Objective-C and Objective-C++ Dialect Options.
                                                               (line   56)
  * fobjc-call-cxx-cdtors:                 Objective-C and Objective-C++ Dialect Options.
*************** look up both forms.
*** 52139,52532 ****
                                                               (line  111)
  * fobjc-std:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  120)
! * fomit-frame-pointer:                   Optimize Options.   (line  218)
! * fopenacc:                              C Dialect Options.  (line  263)
  * fopenacc-dim:                          C Dialect Options.  (line  271)
  * fopenmp:                               C Dialect Options.  (line  277)
! * fopenmp-simd:                          C Dialect Options.  (line  285)
! * fopt-info:                             Developer Options.  (line  563)
! * foptimize-sibling-calls:               Optimize Options.   (line  239)
! * foptimize-strlen:                      Optimize Options.   (line  244)
  * force_cpusubtype_ALL:                  Darwin Options.     (line  135)
  * force_flat_namespace:                  Darwin Options.     (line  196)
! * fpack-struct:                          Code Gen Options.   (line  387)
! * fpartial-inlining:                     Optimize Options.   (line 1337)
! * fpcc-struct-return <1>:                Incompatibilities.  (line  170)
  * fpcc-struct-return:                    Code Gen Options.   (line  167)
  * fpch-deps:                             Preprocessor Options.
!                                                              (line  294)
  * fpch-preprocess:                       Preprocessor Options.
!                                                              (line  302)
! * fpeel-loops:                           Optimize Options.   (line 2251)
  * fpermissive:                           C++ Dialect Options.
!                                                              (line  249)
! * fPIC:                                  Code Gen Options.   (line  295)
! * fpic:                                  Code Gen Options.   (line  274)
! * fPIE:                                  Code Gen Options.   (line  308)
! * fpie:                                  Code Gen Options.   (line  308)
! * fplan9-extensions <1>:                 Unnamed Fields.     (line   44)
! * fplan9-extensions:                     C Dialect Options.  (line  332)
  * fplugin:                               Overall Options.    (line  356)
! * fplugin-arg:                           Overall Options.    (line  364)
! * fpost-ipa-mem-report:                  Developer Options.  (line  923)
! * fpre-ipa-mem-report:                   Developer Options.  (line  921)
! * fpredictive-commoning:                 Optimize Options.   (line 1344)
! * fprefetch-loop-arrays:                 Optimize Options.   (line 1351)
  * fpreprocessed:                         Preprocessor Options.
!                                                              (line  506)
! * fprofile-arcs <1>:                     Other Builtins.     (line  362)
  * fprofile-arcs:                         Instrumentation Options.
                                                               (line   31)
! * fprofile-correction:                   Optimize Options.   (line 1892)
  * fprofile-dir:                          Instrumentation Options.
                                                               (line   96)
  * fprofile-generate:                     Instrumentation Options.
!                                                              (line  106)
! * fprofile-reorder-functions:            Optimize Options.   (line 2193)
! * fprofile-report:                       Developer Options.  (line  927)
! * fprofile-use:                          Optimize Options.   (line 1900)
! * fprofile-values:                       Optimize Options.   (line 2184)
  * fpu:                                   RX Options.         (line   17)
! * fpud:                                  ARC Options.        (line  163)
! * fpud_all:                              ARC Options.        (line  219)
! * fpud_div:                              ARC Options.        (line  199)
! * fpud_fma:                              ARC Options.        (line  209)
! * fpuda:                                 ARC Options.        (line  168)
! * fpuda_all:                             ARC Options.        (line  188)
! * fpuda_div:                             ARC Options.        (line  174)
! * fpuda_fma:                             ARC Options.        (line  181)
! * fpus:                                  ARC Options.        (line  159)
! * fpus_all:                              ARC Options.        (line  215)
! * fpus_div:                              ARC Options.        (line  195)
! * fpus_fma:                              ARC Options.        (line  205)
! * frandom-seed:                          Developer Options.  (line  747)
! * freciprocal-math:                      Optimize Options.   (line 2055)
! * frecord-gcc-switches:                  Code Gen Options.   (line  262)
! * free:                                  Optimize Options.   (line  637)
  * freg-struct-return:                    Code Gen Options.   (line  185)
! * frename-registers:                     Optimize Options.   (line 2210)
! * freorder-blocks:                       Optimize Options.   (line 1388)
! * freorder-blocks-algorithm:             Optimize Options.   (line 1394)
! * freorder-blocks-and-partition:         Optimize Options.   (line 1405)
! * freorder-functions:                    Optimize Options.   (line 1418)
  * freplace-objc-classes:                 Objective-C and Objective-C++ Dialect Options.
                                                               (line  131)
  * frepo <1>:                             Template Instantiation.
                                                               (line   94)
- * frepo:                                 C++ Dialect Options.
-                                                              (line  266)
  * freport-bug:                           Developer Options.  (line  256)
! * frerun-cse-after-loop:                 Optimize Options.   (line  469)
! * freschedule-modulo-scheduled-loops:    Optimize Options.   (line  854)
! * frounding-math:                        Optimize Options.   (line 2101)
  * fsanitize-coverage=trace-pc:           Instrumentation Options.
!                                                              (line  323)
  * fsanitize-recover:                     Instrumentation Options.
!                                                              (line  288)
  * fsanitize-sections:                    Instrumentation Options.
!                                                              (line  284)
  * fsanitize-undefined-trap-on-error:     Instrumentation Options.
!                                                              (line  316)
  * fsanitize=address:                     Instrumentation Options.
!                                                              (line  122)
  * fsanitize=alignment:                   Instrumentation Options.
!                                                              (line  218)
  * fsanitize=bool:                        Instrumentation Options.
!                                                              (line  254)
  * fsanitize=bounds:                      Instrumentation Options.
!                                                              (line  205)
  * fsanitize=bounds-strict:               Instrumentation Options.
!                                                              (line  211)
  * fsanitize=enum:                        Instrumentation Options.
!                                                              (line  258)
  * fsanitize=float-cast-overflow:         Instrumentation Options.
!                                                              (line  235)
  * fsanitize=float-divide-by-zero:        Instrumentation Options.
!                                                              (line  229)
  * fsanitize=integer-divide-by-zero:      Instrumentation Options.
!                                                              (line  168)
  * fsanitize=kernel-address:              Instrumentation Options.
!                                                              (line  134)
  * fsanitize=leak:                        Instrumentation Options.
!                                                              (line  147)
  * fsanitize=nonnull-attribute:           Instrumentation Options.
!                                                              (line  243)
  * fsanitize=null:                        Instrumentation Options.
!                                                              (line  182)
  * fsanitize=object-size:                 Instrumentation Options.
!                                                              (line  224)
  * fsanitize=return:                      Instrumentation Options.
!                                                              (line  190)
  * fsanitize=returns-nonnull-attribute:   Instrumentation Options.
!                                                              (line  249)
  * fsanitize=shift:                       Instrumentation Options.
!                                                              (line  162)
  * fsanitize=signed-integer-overflow:     Instrumentation Options.
!                                                              (line  196)
  * fsanitize=thread:                      Instrumentation Options.
!                                                              (line  138)
  * fsanitize=undefined:                   Instrumentation Options.
!                                                              (line  157)
  * fsanitize=unreachable:                 Instrumentation Options.
!                                                              (line  172)
  * fsanitize=vla-bound:                   Instrumentation Options.
!                                                              (line  178)
  * fsanitize=vptr:                        Instrumentation Options.
!                                                              (line  263)
! * fsched-critical-path-heuristic:        Optimize Options.   (line  820)
! * fsched-dep-count-heuristic:            Optimize Options.   (line  847)
! * fsched-group-heuristic:                Optimize Options.   (line  814)
! * fsched-last-insn-heuristic:            Optimize Options.   (line  840)
! * fsched-pressure:                       Optimize Options.   (line  765)
! * fsched-rank-heuristic:                 Optimize Options.   (line  833)
! * fsched-spec-insn-heuristic:            Optimize Options.   (line  826)
! * fsched-spec-load:                      Optimize Options.   (line  774)
! * fsched-spec-load-dangerous:            Optimize Options.   (line  779)
! * fsched-stalled-insns:                  Optimize Options.   (line  785)
! * fsched-stalled-insns-dep:              Optimize Options.   (line  795)
! * fsched-verbose:                        Developer Options.  (line  662)
! * fsched2-use-superblocks:               Optimize Options.   (line  804)
! * fschedule-fusion:                      Optimize Options.   (line 2220)
! * fschedule-insns:                       Optimize Options.   (line  736)
! * fschedule-insns2:                      Optimize Options.   (line  746)
! * fsection-anchors:                      Optimize Options.   (line 2306)
! * fsel-sched-pipelining:                 Optimize Options.   (line  867)
! * fsel-sched-pipelining-outer-loops:     Optimize Options.   (line  872)
! * fselective-scheduling:                 Optimize Options.   (line  859)
! * fselective-scheduling2:                Optimize Options.   (line  863)
! * fsemantic-interposition:               Optimize Options.   (line  877)
! * fshort-enums <1>:                      Non-bugs.           (line   42)
! * fshort-enums <2>:                      Common Type Attributes.
!                                                              (line  193)
! * fshort-enums <3>:                      Structures unions enumerations and bit-fields implementation.
!                                                              (line   48)
  * fshort-enums:                          Code Gen Options.   (line  203)
  * fshort-wchar:                          Code Gen Options.   (line  213)
! * fshrink-wrap:                          Optimize Options.   (line  894)
! * fsignaling-nans:                       Optimize Options.   (line 2121)
  * fsigned-bitfields <1>:                 Non-bugs.           (line   57)
! * fsigned-bitfields:                     C Dialect Options.  (line  391)
  * fsigned-char <1>:                      Characters implementation.
                                                               (line   31)
! * fsigned-char:                          C Dialect Options.  (line  381)
! * fsimd-cost-model:                      Optimize Options.   (line 1297)
! * fsingle-precision-constant:            Optimize Options.   (line 2136)
  * fsized-deallocation:                   C++ Dialect Options.
!                                                              (line  281)
! * fsplit-ivs-in-unroller:                Optimize Options.   (line 1318)
! * fsplit-paths:                          Optimize Options.   (line 1313)
! * fsplit-stack <1>:                      Common Function Attributes.
!                                                              (line  529)
  * fsplit-stack:                          Instrumentation Options.
!                                                              (line  526)
! * fsplit-wide-types:                     Optimize Options.   (line  444)
! * fssa-backprop:                         Optimize Options.   (line 1062)
! * fssa-phiopt:                           Optimize Options.   (line 1068)
! * fsso-struct:                           C Dialect Options.  (line  397)
  * fstack-check:                          Instrumentation Options.
!                                                              (line  470)
  * fstack-limit-register:                 Instrumentation Options.
!                                                              (line  509)
  * fstack-limit-symbol:                   Instrumentation Options.
!                                                              (line  509)
  * fstack-protector:                      Instrumentation Options.
!                                                              (line  449)
  * fstack-protector-all:                  Instrumentation Options.
!                                                              (line  458)
  * fstack-protector-explicit:             Instrumentation Options.
!                                                              (line  466)
  * fstack-protector-strong:               Instrumentation Options.
!                                                              (line  461)
! * fstack-usage:                          Developer Options.  (line  931)
  * fstack_reuse:                          Code Gen Options.   (line   15)
! * fstats:                                Developer Options.  (line  962)
! * fstdarg-opt:                           Optimize Options.   (line 2302)
! * fstrict-aliasing:                      Optimize Options.   (line 1431)
  * fstrict-enums:                         C++ Dialect Options.
!                                                              (line  291)
! * fstrict-overflow:                      Optimize Options.   (line 1477)
! * fstrict-volatile-bitfields:            Code Gen Options.   (line  487)
! * fsync-libcalls:                        Code Gen Options.   (line  520)
  * fsyntax-only:                          Warning Options.    (line   14)
  * ftabstop:                              Preprocessor Options.
!                                                              (line  519)
  * ftemplate-backtrace-limit:             C++ Dialect Options.
!                                                              (line  300)
  * ftemplate-depth:                       C++ Dialect Options.
!                                                              (line  304)
  * ftest-coverage:                        Instrumentation Options.
                                                               (line   87)
! * fthread-jumps:                         Optimize Options.   (line  435)
! * ftime-report:                          Developer Options.  (line  891)
! * ftls-model:                            Code Gen Options.   (line  411)
! * ftracer:                               Optimize Options.   (line 2228)
  * ftrack-macro-expansion:                Preprocessor Options.
                                                               (line  535)
! * ftrapv:                                Code Gen Options.   (line   90)
! * ftree-bit-ccp:                         Optimize Options.   (line 1051)
! * ftree-builtin-call-dce:                Optimize Options.   (line 1089)
! * ftree-ccp:                             Optimize Options.   (line 1057)
! * ftree-ch:                              Optimize Options.   (line 1109)
! * ftree-coalesce-vars:                   Optimize Options.   (line 1150)
! * ftree-copy-prop:                       Optimize Options.   (line  965)
! * ftree-dce:                             Optimize Options.   (line 1085)
! * ftree-dominator-opts:                  Optimize Options.   (line 1095)
! * ftree-dse:                             Optimize Options.   (line 1102)
! * ftree-forwprop:                        Optimize Options.   (line  944)
! * ftree-fre:                             Optimize Options.   (line  948)
! * ftree-loop-distribute-patterns:        Optimize Options.   (line 1197)
! * ftree-loop-distribution:               Optimize Options.   (line 1180)
! * ftree-loop-if-convert:                 Optimize Options.   (line 1160)
! * ftree-loop-if-convert-stores:          Optimize Options.   (line 1167)
! * ftree-loop-im:                         Optimize Options.   (line 1217)
! * ftree-loop-ivcanon:                    Optimize Options.   (line 1226)
! * ftree-loop-linear:                     Optimize Options.   (line 1124)
! * ftree-loop-optimize:                   Optimize Options.   (line 1116)
! * ftree-loop-vectorize:                  Optimize Options.   (line 1275)
! * ftree-parallelize-loops:               Optimize Options.   (line 1237)
! * ftree-partial-pre:                     Optimize Options.   (line  940)
! * ftree-phiprop:                         Optimize Options.   (line  955)
! * ftree-pre:                             Optimize Options.   (line  936)
! * ftree-pta:                             Optimize Options.   (line 1246)
! * ftree-reassoc:                         Optimize Options.   (line  932)
! * ftree-sink:                            Optimize Options.   (line 1047)
! * ftree-slp-vectorize:                   Optimize Options.   (line 1279)
! * ftree-slsr:                            Optimize Options.   (line 1264)
! * ftree-sra:                             Optimize Options.   (line 1250)
! * ftree-switch-conversion:               Optimize Options.   (line 1072)
! * ftree-tail-merge:                      Optimize Options.   (line 1077)
! * ftree-ter:                             Optimize Options.   (line 1256)
! * ftree-vectorize:                       Optimize Options.   (line 1270)
! * ftree-vrp:                             Optimize Options.   (line 1304)
! * funconstrained-commons:                Optimize Options.   (line  533)
! * funit-at-a-time:                       Optimize Options.   (line 1574)
! * funroll-all-loops:                     Optimize Options.   (line 2245)
! * funroll-loops:                         Optimize Options.   (line 2235)
! * funsafe-loop-optimizations:            Optimize Options.   (line  525)
! * funsafe-math-optimizations:            Optimize Options.   (line 2022)
! * funsigned-bitfields <1>:               Non-bugs.           (line   57)
! * funsigned-bitfields <2>:               Structures unions enumerations and bit-fields implementation.
                                                               (line   17)
! * funsigned-bitfields:                   C Dialect Options.  (line  391)
  * funsigned-char <1>:                    Characters implementation.
                                                               (line   31)
! * funsigned-char:                        C Dialect Options.  (line  363)
! * funswitch-loops:                       Optimize Options.   (line 2263)
  * funwind-tables:                        Code Gen Options.   (line  141)
  * fuse-cxa-atexit:                       C++ Dialect Options.
!                                                              (line  319)
  * fuse-ld=bfd:                           Link Options.       (line   25)
  * fuse-ld=gold:                          Link Options.       (line   28)
! * fuse-linker-plugin:                    Optimize Options.   (line 1836)
! * fvar-tracking:                         Debugging Options.  (line  149)
! * fvar-tracking-assignments:             Debugging Options.  (line  159)
! * fvar-tracking-assignments-toggle:      Developer Options.  (line  883)
! * fvariable-expansion-in-unroller:       Optimize Options.   (line 1332)
! * fvect-cost-model:                      Optimize Options.   (line 1283)
! * fverbose-asm:                          Code Gen Options.   (line  253)
! * fvisibility:                           Code Gen Options.   (line  422)
  * fvisibility-inlines-hidden:            C++ Dialect Options.
!                                                              (line  331)
  * fvisibility-ms-compat:                 C++ Dialect Options.
!                                                              (line  359)
! * fvpt:                                  Optimize Options.   (line 2200)
  * fvtable-verify:                        Instrumentation Options.
!                                                              (line  544)
  * fvtv-counts:                           Instrumentation Options.
!                                                              (line  580)
  * fvtv-debug:                            Instrumentation Options.
!                                                              (line  567)
! * fweb:                                  Optimize Options.   (line 1593)
! * fwhole-program:                        Optimize Options.   (line 1604)
  * fwide-exec-charset:                    Preprocessor Options.
                                                               (line  558)
  * fworking-directory:                    Preprocessor Options.
                                                               (line  576)
! * fwrapv:                                Code Gen Options.   (line   98)
  * fzero-link:                            Objective-C and Objective-C++ Dialect Options.
                                                               (line  141)
! * G <1>:                                 System V Options.   (line   10)
! * G <2>:                                 RS/6000 and PowerPC Options.
!                                                              (line  809)
! * G <3>:                                 Nios II Options.    (line    9)
! * G <4>:                                 MIPS Options.       (line  440)
  * G:                                     M32R/D Options.     (line   57)
! * g:                                     Debugging Options.  (line   26)
! * gcoff:                                 Debugging Options.  (line   79)
! * gdwarf:                                Debugging Options.  (line   46)
  * gen-decls:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  167)
  * gfull:                                 Darwin Options.     (line   69)
! * ggdb:                                  Debugging Options.  (line   39)
! * ggnu-pubnames:                         Debugging Options.  (line  180)
! * gno-record-gcc-switches:               Debugging Options.  (line  196)
! * gno-strict-dwarf:                      Debugging Options.  (line  211)
! * gpubnames:                             Debugging Options.  (line  177)
! * grecord-gcc-switches:                  Debugging Options.  (line  196)
! * gsplit-dwarf:                          Debugging Options.  (line  170)
! * gstabs:                                Debugging Options.  (line   65)
! * gstabs+:                               Debugging Options.  (line   73)
! * gstrict-dwarf:                         Debugging Options.  (line  205)
! * gtoggle:                               Developer Options.  (line  875)
  * gused:                                 Darwin Options.     (line   64)
! * gvms:                                  Debugging Options.  (line   97)
! * gxcoff:                                Debugging Options.  (line   84)
! * gxcoff+:                               Debugging Options.  (line   89)
! * gz:                                    Debugging Options.  (line  215)
  * H:                                     Preprocessor Options.
!                                                              (line  709)
  * headerpad_max_install_names:           Darwin Options.     (line  196)
- * help <1>:                              Preprocessor Options.
-                                                              (line  701)
  * help:                                  Overall Options.    (line  207)
! * I <1>:                                 Directory Options.  (line   10)
  * I:                                     Preprocessor Options.
                                                               (line   77)
! * I- <1>:                                Directory Options.  (line  114)
  * I-:                                    Preprocessor Options.
!                                                              (line  387)
  * idirafter:                             Preprocessor Options.
!                                                              (line  429)
  * iframework:                            Darwin Options.     (line   57)
  * imacros:                               Preprocessor Options.
!                                                              (line  420)
  * image_base:                            Darwin Options.     (line  196)
  * imultilib:                             Preprocessor Options.
!                                                              (line  454)
  * include:                               Preprocessor Options.
!                                                              (line  409)
  * init:                                  Darwin Options.     (line  196)
  * install_name:                          Darwin Options.     (line  196)
! * iplugindir=:                           Directory Options.  (line   31)
  * iprefix:                               Preprocessor Options.
!                                                              (line  436)
! * iquote <1>:                            Directory Options.  (line   36)
  * iquote:                                Preprocessor Options.
!                                                              (line  466)
  * isysroot:                              Preprocessor Options.
!                                                              (line  448)
  * isystem:                               Preprocessor Options.
!                                                              (line  458)
  * iwithprefix:                           Preprocessor Options.
!                                                              (line  442)
  * iwithprefixbefore:                     Preprocessor Options.
!                                                              (line  442)
  * keep_private_externs:                  Darwin Options.     (line  196)
- * L:                                     Directory Options.  (line   42)
  * l:                                     Link Options.       (line   32)
  * lobjc:                                 Link Options.       (line   59)
- * m:                                     RS/6000 and PowerPC Options.
-                                                              (line  650)
  * M:                                     Preprocessor Options.
                                                               (line  185)
  * m1:                                    SH Options.         (line    9)
  * m10:                                   PDP-11 Options.     (line   29)
! * m128bit-long-double:                   x86 Options.        (line  422)
! * m16:                                   x86 Options.        (line 1125)
! * m16-bit <1>:                           NDS32 Options.      (line   39)
  * m16-bit:                               CRIS Options.       (line   64)
  * m1reg-:                                Adapteva Epiphany Options.
!                                                              (line  132)
  * m2:                                    SH Options.         (line   12)
  * m210:                                  MCore Options.      (line   43)
  * m2a:                                   SH Options.         (line   30)
--- 51708,52101 ----
                                                               (line  111)
  * fobjc-std:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  120)
! * fomit-frame-pointer:                   Optimize Options.   (line  217)
! * fopenacc:                              C Dialect Options.  (line  262)
  * fopenacc-dim:                          C Dialect Options.  (line  271)
  * fopenmp:                               C Dialect Options.  (line  277)
! * fopenmp-simd:                          C Dialect Options.  (line  286)
! * fopt-info:                             Developer Options.  (line  544)
! * foptimize-sibling-calls:               Optimize Options.   (line  237)
! * foptimize-strlen:                      Optimize Options.   (line  242)
  * force_cpusubtype_ALL:                  Darwin Options.     (line  135)
  * force_flat_namespace:                  Darwin Options.     (line  196)
! * fpack-struct:                          Code Gen Options.   (line  385)
! * fpartial-inlining:                     Optimize Options.   (line 1332)
  * fpcc-struct-return:                    Code Gen Options.   (line  167)
+ * fpcc-struct-return <1>:                Incompatibilities.  (line  170)
  * fpch-deps:                             Preprocessor Options.
!                                                              (line  296)
  * fpch-preprocess:                       Preprocessor Options.
!                                                              (line  304)
! * fpeel-loops:                           Optimize Options.   (line 2249)
  * fpermissive:                           C++ Dialect Options.
!                                                              (line  248)
! * fpic:                                  Code Gen Options.   (line  273)
! * fPIC:                                  Code Gen Options.   (line  294)
! * fpie:                                  Code Gen Options.   (line  307)
! * fPIE:                                  Code Gen Options.   (line  307)
! * fplan9-extensions:                     C Dialect Options.  (line  333)
! * fplan9-extensions <1>:                 Unnamed Fields.     (line   43)
  * fplugin:                               Overall Options.    (line  356)
! * fplugin-arg:                           Overall Options.    (line  363)
! * fpost-ipa-mem-report:                  Developer Options.  (line  897)
! * fpre-ipa-mem-report:                   Developer Options.  (line  896)
! * fpredictive-commoning:                 Optimize Options.   (line 1339)
! * fprefetch-loop-arrays:                 Optimize Options.   (line 1346)
  * fpreprocessed:                         Preprocessor Options.
!                                                              (line  507)
  * fprofile-arcs:                         Instrumentation Options.
                                                               (line   31)
! * fprofile-arcs <1>:                     Other Builtins.     (line  356)
! * fprofile-correction:                   Optimize Options.   (line 1888)
  * fprofile-dir:                          Instrumentation Options.
                                                               (line   96)
  * fprofile-generate:                     Instrumentation Options.
!                                                              (line  107)
! * fprofile-reorder-functions:            Optimize Options.   (line 2191)
! * fprofile-report:                       Developer Options.  (line  901)
! * fprofile-use:                          Optimize Options.   (line 1896)
! * fprofile-values:                       Optimize Options.   (line 2182)
  * fpu:                                   RX Options.         (line   17)
! * fpud:                                  ARC Options.        (line  157)
! * fpuda:                                 ARC Options.        (line  162)
! * fpuda_all:                             ARC Options.        (line  182)
! * fpuda_div:                             ARC Options.        (line  168)
! * fpuda_fma:                             ARC Options.        (line  175)
! * fpud_all:                              ARC Options.        (line  213)
! * fpud_div:                              ARC Options.        (line  193)
! * fpud_fma:                              ARC Options.        (line  203)
! * fpus:                                  ARC Options.        (line  153)
! * fpus_all:                              ARC Options.        (line  209)
! * fpus_div:                              ARC Options.        (line  189)
! * fpus_fma:                              ARC Options.        (line  199)
! * frandom-seed:                          Developer Options.  (line  722)
! * freciprocal-math:                      Optimize Options.   (line 2053)
! * frecord-gcc-switches:                  Code Gen Options.   (line  261)
! * free:                                  Optimize Options.   (line  633)
  * freg-struct-return:                    Code Gen Options.   (line  185)
! * frename-registers:                     Optimize Options.   (line 2208)
! * freorder-blocks:                       Optimize Options.   (line 1383)
! * freorder-blocks-algorithm:             Optimize Options.   (line 1389)
! * freorder-blocks-and-partition:         Optimize Options.   (line 1400)
! * freorder-functions:                    Optimize Options.   (line 1413)
  * freplace-objc-classes:                 Objective-C and Objective-C++ Dialect Options.
                                                               (line  131)
+ * frepo:                                 C++ Dialect Options.
+                                                              (line  265)
  * frepo <1>:                             Template Instantiation.
                                                               (line   94)
  * freport-bug:                           Developer Options.  (line  256)
! * frerun-cse-after-loop:                 Optimize Options.   (line  465)
! * freschedule-modulo-scheduled-loops:    Optimize Options.   (line  849)
! * frounding-math:                        Optimize Options.   (line 2100)
  * fsanitize-coverage=trace-pc:           Instrumentation Options.
!                                                              (line  330)
  * fsanitize-recover:                     Instrumentation Options.
!                                                              (line  295)
  * fsanitize-sections:                    Instrumentation Options.
!                                                              (line  291)
  * fsanitize-undefined-trap-on-error:     Instrumentation Options.
!                                                              (line  323)
  * fsanitize=address:                     Instrumentation Options.
!                                                              (line  124)
  * fsanitize=alignment:                   Instrumentation Options.
!                                                              (line  220)
  * fsanitize=bool:                        Instrumentation Options.
!                                                              (line  258)
  * fsanitize=bounds:                      Instrumentation Options.
!                                                              (line  207)
  * fsanitize=bounds-strict:               Instrumentation Options.
!                                                              (line  213)
  * fsanitize=enum:                        Instrumentation Options.
!                                                              (line  263)
  * fsanitize=float-cast-overflow:         Instrumentation Options.
!                                                              (line  238)
  * fsanitize=float-divide-by-zero:        Instrumentation Options.
!                                                              (line  232)
  * fsanitize=integer-divide-by-zero:      Instrumentation Options.
!                                                              (line  170)
  * fsanitize=kernel-address:              Instrumentation Options.
!                                                              (line  136)
  * fsanitize=leak:                        Instrumentation Options.
!                                                              (line  149)
  * fsanitize=nonnull-attribute:           Instrumentation Options.
!                                                              (line  246)
  * fsanitize=null:                        Instrumentation Options.
!                                                              (line  184)
  * fsanitize=object-size:                 Instrumentation Options.
!                                                              (line  227)
  * fsanitize=return:                      Instrumentation Options.
!                                                              (line  192)
  * fsanitize=returns-nonnull-attribute:   Instrumentation Options.
!                                                              (line  252)
  * fsanitize=shift:                       Instrumentation Options.
!                                                              (line  164)
  * fsanitize=signed-integer-overflow:     Instrumentation Options.
!                                                              (line  198)
  * fsanitize=thread:                      Instrumentation Options.
!                                                              (line  140)
  * fsanitize=undefined:                   Instrumentation Options.
!                                                              (line  159)
  * fsanitize=unreachable:                 Instrumentation Options.
!                                                              (line  174)
  * fsanitize=vla-bound:                   Instrumentation Options.
!                                                              (line  180)
  * fsanitize=vptr:                        Instrumentation Options.
!                                                              (line  269)
! * fsched-critical-path-heuristic:        Optimize Options.   (line  815)
! * fsched-dep-count-heuristic:            Optimize Options.   (line  842)
! * fsched-group-heuristic:                Optimize Options.   (line  809)
! * fsched-last-insn-heuristic:            Optimize Options.   (line  835)
! * fsched-pressure:                       Optimize Options.   (line  760)
! * fsched-rank-heuristic:                 Optimize Options.   (line  828)
! * fsched-spec-insn-heuristic:            Optimize Options.   (line  821)
! * fsched-spec-load:                      Optimize Options.   (line  769)
! * fsched-spec-load-dangerous:            Optimize Options.   (line  774)
! * fsched-stalled-insns:                  Optimize Options.   (line  780)
! * fsched-stalled-insns-dep:              Optimize Options.   (line  790)
! * fsched-verbose:                        Developer Options.  (line  636)
! * fsched2-use-superblocks:               Optimize Options.   (line  799)
! * fschedule-fusion:                      Optimize Options.   (line 2218)
! * fschedule-insns:                       Optimize Options.   (line  731)
! * fschedule-insns2:                      Optimize Options.   (line  741)
! * fsection-anchors:                      Optimize Options.   (line 2304)
! * fsel-sched-pipelining:                 Optimize Options.   (line  862)
! * fsel-sched-pipelining-outer-loops:     Optimize Options.   (line  867)
! * fselective-scheduling:                 Optimize Options.   (line  854)
! * fselective-scheduling2:                Optimize Options.   (line  858)
! * fsemantic-interposition:               Optimize Options.   (line  872)
  * fshort-enums:                          Code Gen Options.   (line  203)
+ * fshort-enums <1>:                      Structures unions enumerations and bit-fields implementation.
+                                                              (line   48)
+ * fshort-enums <2>:                      Common Type Attributes.
+                                                              (line  192)
+ * fshort-enums <3>:                      Non-bugs.           (line   42)
  * fshort-wchar:                          Code Gen Options.   (line  213)
! * fshrink-wrap:                          Optimize Options.   (line  889)
! * fsignaling-nans:                       Optimize Options.   (line 2120)
! * fsigned-bitfields:                     C Dialect Options.  (line  392)
  * fsigned-bitfields <1>:                 Non-bugs.           (line   57)
! * fsigned-char:                          C Dialect Options.  (line  382)
  * fsigned-char <1>:                      Characters implementation.
                                                               (line   31)
! * fsimd-cost-model:                      Optimize Options.   (line 1292)
! * fsingle-precision-constant:            Optimize Options.   (line 2135)
  * fsized-deallocation:                   C++ Dialect Options.
!                                                              (line  280)
! * fsplit-ivs-in-unroller:                Optimize Options.   (line 1313)
! * fsplit-paths:                          Optimize Options.   (line 1308)
  * fsplit-stack:                          Instrumentation Options.
!                                                              (line  532)
! * fsplit-stack <1>:                      Common Function Attributes.
!                                                              (line  525)
! * fsplit-wide-types:                     Optimize Options.   (line  440)
! * fssa-backprop:                         Optimize Options.   (line 1057)
! * fssa-phiopt:                           Optimize Options.   (line 1063)
! * fsso-struct:                           C Dialect Options.  (line  398)
  * fstack-check:                          Instrumentation Options.
!                                                              (line  477)
  * fstack-limit-register:                 Instrumentation Options.
!                                                              (line  515)
  * fstack-limit-symbol:                   Instrumentation Options.
!                                                              (line  515)
  * fstack-protector:                      Instrumentation Options.
!                                                              (line  456)
  * fstack-protector-all:                  Instrumentation Options.
!                                                              (line  465)
  * fstack-protector-explicit:             Instrumentation Options.
!                                                              (line  473)
  * fstack-protector-strong:               Instrumentation Options.
!                                                              (line  468)
! * fstack-usage:                          Developer Options.  (line  905)
  * fstack_reuse:                          Code Gen Options.   (line   15)
! * fstats:                                Developer Options.  (line  934)
! * fstdarg-opt:                           Optimize Options.   (line 2300)
! * fstrict-aliasing:                      Optimize Options.   (line 1426)
  * fstrict-enums:                         C++ Dialect Options.
!                                                              (line  290)
! * fstrict-overflow:                      Optimize Options.   (line 1472)
! * fstrict-volatile-bitfields:            Code Gen Options.   (line  485)
! * fsync-libcalls:                        Code Gen Options.   (line  517)
  * fsyntax-only:                          Warning Options.    (line   14)
  * ftabstop:                              Preprocessor Options.
!                                                              (line  520)
  * ftemplate-backtrace-limit:             C++ Dialect Options.
!                                                              (line  299)
  * ftemplate-depth:                       C++ Dialect Options.
!                                                              (line  303)
  * ftest-coverage:                        Instrumentation Options.
                                                               (line   87)
! * fthread-jumps:                         Optimize Options.   (line  431)
! * ftime-report:                          Developer Options.  (line  866)
! * ftls-model:                            Code Gen Options.   (line  409)
! * ftracer:                               Optimize Options.   (line 2226)
  * ftrack-macro-expansion:                Preprocessor Options.
                                                               (line  535)
! * ftrapv:                                Code Gen Options.   (line   91)
! * ftree-bit-ccp:                         Optimize Options.   (line 1046)
! * ftree-builtin-call-dce:                Optimize Options.   (line 1084)
! * ftree-ccp:                             Optimize Options.   (line 1052)
! * ftree-ch:                              Optimize Options.   (line 1104)
! * ftree-coalesce-vars:                   Optimize Options.   (line 1145)
! * ftree-copy-prop:                       Optimize Options.   (line  960)
! * ftree-dce:                             Optimize Options.   (line 1080)
! * ftree-dominator-opts:                  Optimize Options.   (line 1090)
! * ftree-dse:                             Optimize Options.   (line 1097)
! * ftree-forwprop:                        Optimize Options.   (line  939)
! * ftree-fre:                             Optimize Options.   (line  943)
! * ftree-loop-distribute-patterns:        Optimize Options.   (line 1192)
! * ftree-loop-distribution:               Optimize Options.   (line 1175)
! * ftree-loop-if-convert:                 Optimize Options.   (line 1155)
! * ftree-loop-if-convert-stores:          Optimize Options.   (line 1162)
! * ftree-loop-im:                         Optimize Options.   (line 1212)
! * ftree-loop-ivcanon:                    Optimize Options.   (line 1221)
! * ftree-loop-linear:                     Optimize Options.   (line 1119)
! * ftree-loop-optimize:                   Optimize Options.   (line 1111)
! * ftree-loop-vectorize:                  Optimize Options.   (line 1270)
! * ftree-parallelize-loops:               Optimize Options.   (line 1232)
! * ftree-partial-pre:                     Optimize Options.   (line  935)
! * ftree-phiprop:                         Optimize Options.   (line  950)
! * ftree-pre:                             Optimize Options.   (line  931)
! * ftree-pta:                             Optimize Options.   (line 1241)
! * ftree-reassoc:                         Optimize Options.   (line  927)
! * ftree-sink:                            Optimize Options.   (line 1042)
! * ftree-slp-vectorize:                   Optimize Options.   (line 1274)
! * ftree-slsr:                            Optimize Options.   (line 1259)
! * ftree-sra:                             Optimize Options.   (line 1245)
! * ftree-switch-conversion:               Optimize Options.   (line 1067)
! * ftree-tail-merge:                      Optimize Options.   (line 1072)
! * ftree-ter:                             Optimize Options.   (line 1251)
! * ftree-vectorize:                       Optimize Options.   (line 1265)
! * ftree-vrp:                             Optimize Options.   (line 1299)
! * funconstrained-commons:                Optimize Options.   (line  529)
! * funit-at-a-time:                       Optimize Options.   (line 1573)
! * funroll-all-loops:                     Optimize Options.   (line 2243)
! * funroll-loops:                         Optimize Options.   (line 2233)
! * funsafe-loop-optimizations:            Optimize Options.   (line  521)
! * funsafe-math-optimizations:            Optimize Options.   (line 2018)
! * funsigned-bitfields:                   C Dialect Options.  (line  392)
! * funsigned-bitfields <1>:               Structures unions enumerations and bit-fields implementation.
                                                               (line   17)
! * funsigned-bitfields <2>:               Non-bugs.           (line   57)
! * funsigned-char:                        C Dialect Options.  (line  364)
  * funsigned-char <1>:                    Characters implementation.
                                                               (line   31)
! * funswitch-loops:                       Optimize Options.   (line 2261)
  * funwind-tables:                        Code Gen Options.   (line  141)
  * fuse-cxa-atexit:                       C++ Dialect Options.
!                                                              (line  318)
  * fuse-ld=bfd:                           Link Options.       (line   25)
  * fuse-ld=gold:                          Link Options.       (line   28)
! * fuse-linker-plugin:                    Optimize Options.   (line 1833)
! * fvar-tracking:                         Debugging Options.  (line  148)
! * fvar-tracking-assignments:             Debugging Options.  (line  158)
! * fvar-tracking-assignments-toggle:      Developer Options.  (line  858)
! * fvariable-expansion-in-unroller:       Optimize Options.   (line 1327)
! * fvect-cost-model:                      Optimize Options.   (line 1278)
! * fverbose-asm:                          Code Gen Options.   (line  252)
! * fvisibility:                           Code Gen Options.   (line  420)
  * fvisibility-inlines-hidden:            C++ Dialect Options.
!                                                              (line  330)
  * fvisibility-ms-compat:                 C++ Dialect Options.
!                                                              (line  358)
! * fvpt:                                  Optimize Options.   (line 2198)
  * fvtable-verify:                        Instrumentation Options.
!                                                              (line  550)
  * fvtv-counts:                           Instrumentation Options.
!                                                              (line  586)
  * fvtv-debug:                            Instrumentation Options.
!                                                              (line  573)
! * fweb:                                  Optimize Options.   (line 1592)
! * fwhole-program:                        Optimize Options.   (line 1603)
  * fwide-exec-charset:                    Preprocessor Options.
                                                               (line  558)
  * fworking-directory:                    Preprocessor Options.
                                                               (line  576)
! * fwrapv:                                Code Gen Options.   (line   99)
  * fzero-link:                            Objective-C and Objective-C++ Dialect Options.
                                                               (line  141)
! * g:                                     Debugging Options.  (line   25)
  * G:                                     M32R/D Options.     (line   57)
! * G <1>:                                 MIPS Options.       (line  437)
! * G <2>:                                 Nios II Options.    (line    9)
! * G <3>:                                 RS/6000 and PowerPC Options.
!                                                              (line  811)
! * G <4>:                                 System V Options.   (line   10)
! * gcoff:                                 Debugging Options.  (line   78)
! * gdwarf:                                Debugging Options.  (line   45)
  * gen-decls:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  167)
  * gfull:                                 Darwin Options.     (line   69)
! * ggdb:                                  Debugging Options.  (line   38)
! * ggnu-pubnames:                         Debugging Options.  (line  179)
! * gno-record-gcc-switches:               Debugging Options.  (line  194)
! * gno-strict-dwarf:                      Debugging Options.  (line  209)
! * gpubnames:                             Debugging Options.  (line  176)
! * grecord-gcc-switches:                  Debugging Options.  (line  194)
! * gsplit-dwarf:                          Debugging Options.  (line  169)
! * gstabs:                                Debugging Options.  (line   64)
! * gstabs+:                               Debugging Options.  (line   72)
! * gstrict-dwarf:                         Debugging Options.  (line  203)
! * gtoggle:                               Developer Options.  (line  850)
  * gused:                                 Darwin Options.     (line   64)
! * gvms:                                  Debugging Options.  (line   96)
! * gxcoff:                                Debugging Options.  (line   83)
! * gxcoff+:                               Debugging Options.  (line   88)
! * gz:                                    Debugging Options.  (line  213)
  * H:                                     Preprocessor Options.
!                                                              (line  706)
  * headerpad_max_install_names:           Darwin Options.     (line  196)
  * help:                                  Overall Options.    (line  207)
! * help <1>:                              Preprocessor Options.
!                                                              (line  698)
  * I:                                     Preprocessor Options.
                                                               (line   77)
! * I <1>:                                 Directory Options.  (line   10)
  * I-:                                    Preprocessor Options.
!                                                              (line  389)
! * I- <1>:                                Directory Options.  (line  112)
  * idirafter:                             Preprocessor Options.
!                                                              (line  431)
  * iframework:                            Darwin Options.     (line   57)
  * imacros:                               Preprocessor Options.
!                                                              (line  422)
  * image_base:                            Darwin Options.     (line  196)
  * imultilib:                             Preprocessor Options.
!                                                              (line  456)
  * include:                               Preprocessor Options.
!                                                              (line  411)
  * init:                                  Darwin Options.     (line  196)
  * install_name:                          Darwin Options.     (line  196)
! * iplugindir=:                           Directory Options.  (line   29)
  * iprefix:                               Preprocessor Options.
!                                                              (line  438)
  * iquote:                                Preprocessor Options.
!                                                              (line  468)
! * iquote <1>:                            Directory Options.  (line   34)
  * isysroot:                              Preprocessor Options.
!                                                              (line  450)
  * isystem:                               Preprocessor Options.
!                                                              (line  460)
  * iwithprefix:                           Preprocessor Options.
!                                                              (line  444)
  * iwithprefixbefore:                     Preprocessor Options.
!                                                              (line  444)
  * keep_private_externs:                  Darwin Options.     (line  196)
  * l:                                     Link Options.       (line   32)
+ * L:                                     Directory Options.  (line   40)
  * lobjc:                                 Link Options.       (line   59)
  * M:                                     Preprocessor Options.
                                                               (line  185)
+ * m:                                     RS/6000 and PowerPC Options.
+                                                              (line  648)
  * m1:                                    SH Options.         (line    9)
  * m10:                                   PDP-11 Options.     (line   29)
! * m128bit-long-double:                   x86 Options.        (line  415)
! * m16:                                   x86 Options.        (line 1147)
  * m16-bit:                               CRIS Options.       (line   64)
+ * m16-bit <1>:                           NDS32 Options.      (line   39)
  * m1reg-:                                Adapteva Epiphany Options.
!                                                              (line  131)
  * m2:                                    SH Options.         (line   12)
  * m210:                                  MCore Options.      (line   43)
  * m2a:                                   SH Options.         (line   30)
*************** look up both forms.
*** 52535,52556 ****
  * m2a-single-only:                       SH Options.         (line   22)
  * m3:                                    SH Options.         (line   34)
  * m31:                                   S/390 and zSeries Options.
!                                                              (line   87)
! * m32 <1>:                               x86 Options.        (line 1125)
! * m32 <2>:                               TILEPro Options.    (line   13)
! * m32 <3>:                               TILE-Gx Options.    (line   23)
! * m32 <4>:                               SPARC Options.      (line  280)
! * m32 <5>:                               RS/6000 and PowerPC Options.
!                                                              (line  342)
  * m32:                                   Nvidia PTX Options. (line   10)
  * m32-bit:                               CRIS Options.       (line   64)
- * m32bit-doubles <1>:                    RX Options.         (line   10)
  * m32bit-doubles:                        RL78 Options.       (line   73)
  * m32r:                                  M32R/D Options.     (line   15)
  * m32r2:                                 M32R/D Options.     (line    9)
  * m32rx:                                 M32R/D Options.     (line   12)
  * m340:                                  MCore Options.      (line   43)
! * m3dnow:                                x86 Options.        (line  639)
  * m3e:                                   SH Options.         (line   37)
  * m4:                                    SH Options.         (line   51)
  * m4-100:                                SH Options.         (line   54)
--- 52104,52125 ----
  * m2a-single-only:                       SH Options.         (line   22)
  * m3:                                    SH Options.         (line   34)
  * m31:                                   S/390 and zSeries Options.
!                                                              (line   86)
  * m32:                                   Nvidia PTX Options. (line   10)
+ * m32 <1>:                               RS/6000 and PowerPC Options.
+                                                              (line  341)
+ * m32 <2>:                               SPARC Options.      (line  277)
+ * m32 <3>:                               TILE-Gx Options.    (line   23)
+ * m32 <4>:                               TILEPro Options.    (line   13)
+ * m32 <5>:                               x86 Options.        (line 1147)
  * m32-bit:                               CRIS Options.       (line   64)
  * m32bit-doubles:                        RL78 Options.       (line   73)
+ * m32bit-doubles <1>:                    RX Options.         (line   10)
  * m32r:                                  M32R/D Options.     (line   15)
  * m32r2:                                 M32R/D Options.     (line    9)
  * m32rx:                                 M32R/D Options.     (line   12)
  * m340:                                  MCore Options.      (line   43)
! * m3dnow:                                x86 Options.        (line  633)
  * m3e:                                   SH Options.         (line   37)
  * m4:                                    SH Options.         (line   51)
  * m4-100:                                SH Options.         (line   54)
*************** look up both forms.
*** 52578,52861 ****
  * m4a-single-only:                       SH Options.         (line  110)
  * m4al:                                  SH Options.         (line  121)
  * m4byte-functions:                      MCore Options.      (line   27)
! * m5200:                                 M680x0 Options.     (line  147)
! * m5206e:                                M680x0 Options.     (line  156)
! * m528x:                                 M680x0 Options.     (line  160)
! * m5307:                                 M680x0 Options.     (line  164)
! * m5407:                                 M680x0 Options.     (line  168)
! * m64 <1>:                               x86 Options.        (line 1125)
! * m64 <2>:                               TILE-Gx Options.    (line   23)
! * m64 <3>:                               SPARC Options.      (line  280)
! * m64 <4>:                               S/390 and zSeries Options.
!                                                              (line   87)
! * m64 <5>:                               RS/6000 and PowerPC Options.
!                                                              (line  342)
  * m64:                                   Nvidia PTX Options. (line   10)
! * m64bit-doubles <1>:                    RX Options.         (line   10)
  * m64bit-doubles:                        RL78 Options.       (line   73)
! * m68000:                                M680x0 Options.     (line   95)
! * m68010:                                M680x0 Options.     (line  103)
! * m68020:                                M680x0 Options.     (line  109)
! * m68020-40:                             M680x0 Options.     (line  178)
! * m68020-60:                             M680x0 Options.     (line  187)
! * m68030:                                M680x0 Options.     (line  114)
! * m68040:                                M680x0 Options.     (line  119)
! * m68060:                                M680x0 Options.     (line  128)
! * m68881:                                M680x0 Options.     (line  197)
  * m8-bit:                                CRIS Options.       (line   64)
! * m8bit-idiv:                            x86 Options.        (line 1093)
  * m8byte-align:                          V850 Options.       (line  170)
! * m96bit-long-double:                    x86 Options.        (line  422)
  * mA6:                                   ARC Options.        (line   19)
! * mA7:                                   ARC Options.        (line   32)
! * mabi <1>:                              x86 Options.        (line  828)
! * mabi <2>:                              RS/6000 and PowerPC Options.
!                                                              (line  677)
! * mabi <3>:                              ARM Options.        (line    9)
  * mabi:                                  AArch64 Options.    (line    9)
! * mabi=32:                               MIPS Options.       (line  157)
! * mabi=64:                               MIPS Options.       (line  157)
! * mabi=eabi:                             MIPS Options.       (line  157)
  * mabi=elfv1:                            RS/6000 and PowerPC Options.
!                                                              (line  698)
  * mabi=elfv2:                            RS/6000 and PowerPC Options.
!                                                              (line  704)
  * mabi=gnu:                              MMIX Options.       (line   20)
  * mabi=ibmlongdouble:                    RS/6000 and PowerPC Options.
!                                                              (line  690)
  * mabi=ieeelongdouble:                   RS/6000 and PowerPC Options.
!                                                              (line  694)
  * mabi=mmixware:                         MMIX Options.       (line   20)
! * mabi=n32:                              MIPS Options.       (line  157)
  * mabi=no-spe:                           RS/6000 and PowerPC Options.
!                                                              (line  687)
! * mabi=o64:                              MIPS Options.       (line  157)
  * mabi=spe:                              RS/6000 and PowerPC Options.
!                                                              (line  682)
! * mabicalls:                             MIPS Options.       (line  194)
! * mabm:                                  x86 Options.        (line  641)
! * mabort-on-noreturn:                    ARM Options.        (line  199)
! * mabs=2008:                             MIPS Options.       (line  302)
! * mabs=legacy:                           MIPS Options.       (line  302)
  * mabsdiff:                              MeP Options.        (line    7)
  * mabshi:                                PDP-11 Options.     (line   55)
  * mac0:                                  PDP-11 Options.     (line   16)
! * macc-4:                                FRV Options.        (line  113)
! * macc-8:                                FRV Options.        (line  116)
! * maccumulate-args:                      AVR Options.        (line  148)
! * maccumulate-outgoing-args <1>:         x86 Options.        (line  851)
! * maccumulate-outgoing-args:             SH Options.         (line  318)
! * maddress-mode=long:                    x86 Options.        (line 1175)
! * maddress-mode=short:                   x86 Options.        (line 1180)
! * maddress-space-conversion:             SPU Options.        (line   63)
  * mads:                                  RS/6000 and PowerPC Options.
!                                                              (line  732)
! * maes:                                  x86 Options.        (line  628)
  * maix-struct-return:                    RS/6000 and PowerPC Options.
!                                                              (line  670)
  * maix32:                                RS/6000 and PowerPC Options.
!                                                              (line  380)
  * maix64:                                RS/6000 and PowerPC Options.
!                                                              (line  380)
  * malign-300:                            H8/300 Options.     (line   41)
! * malign-call:                           ARC Options.        (line  327)
! * malign-data:                           x86 Options.        (line  461)
! * malign-double:                         x86 Options.        (line  406)
! * malign-int:                            M680x0 Options.     (line  267)
! * malign-labels:                         FRV Options.        (line  104)
  * malign-loops:                          M32R/D Options.     (line   73)
  * malign-natural:                        RS/6000 and PowerPC Options.
!                                                              (line  419)
  * malign-power:                          RS/6000 and PowerPC Options.
!                                                              (line  419)
  * mall-opts:                             MeP Options.        (line   11)
! * malloc-cc:                             FRV Options.        (line   25)
  * mallow-string-insns:                   RX Options.         (line  150)
  * mallregs:                              RL78 Options.       (line   66)
  * maltivec:                              RS/6000 and PowerPC Options.
!                                                              (line  136)
  * maltivec=be:                           RS/6000 and PowerPC Options.
!                                                              (line  152)
  * maltivec=le:                           RS/6000 and PowerPC Options.
!                                                              (line  162)
  * mam33:                                 MN10300 Options.    (line   17)
  * mam33-2:                               MN10300 Options.    (line   24)
  * mam34:                                 MN10300 Options.    (line   27)
  * mandroid:                              GNU/Linux Options.  (line   26)
! * mannotate-align:                       ARC Options.        (line  274)
  * mapcs:                                 ARM Options.        (line   21)
  * mapcs-frame:                           ARM Options.        (line   13)
- * mapp-regs <1>:                         V850 Options.       (line  181)
  * mapp-regs:                             SPARC Options.      (line   10)
  * mARC600:                               ARC Options.        (line   19)
! * mARC601:                               ARC Options.        (line   27)
! * mARC700:                               ARC Options.        (line   32)
! * march <1>:                             x86 Options.        (line    9)
! * march <2>:                             S/390 and zSeries Options.
!                                                              (line  150)
! * march <3>:                             Nios II Options.    (line   73)
! * march <4>:                             NDS32 Options.      (line   52)
! * march <5>:                             MIPS Options.       (line   14)
  * march <6>:                             M680x0 Options.     (line   12)
! * march <7>:                             HPPA Options.       (line    9)
! * march <8>:                             CRIS Options.       (line   10)
! * march <9>:                             C6X Options.        (line    7)
! * march <10>:                            ARM Options.        (line   65)
! * march:                                 AArch64 Options.    (line   95)
! * marclinux:                             ARC Options.        (line  281)
! * marclinux_prof:                        ARC Options.        (line  287)
! * margonaut:                             ARC Options.        (line  478)
! * marm:                                  ARM Options.        (line  269)
  * mas100-syntax:                         RX Options.         (line   76)
  * masm-hex:                              MSP430 Options.     (line    9)
  * masm-syntax-unified:                   ARM Options.        (line  363)
! * masm=DIALECT:                          x86 Options.        (line  360)
! * matomic:                               ARC Options.        (line  101)
  * matomic-model=MODEL:                   SH Options.         (line  193)
! * matomic-updates:                       SPU Options.        (line   78)
  * mauto-litpools:                        Xtensa Options.     (line   60)
! * mauto-modify-reg:                      ARC Options.        (line  330)
  * mauto-pic:                             IA-64 Options.      (line   50)
  * maverage:                              MeP Options.        (line   16)
  * mavoid-indexed-addresses:              RS/6000 and PowerPC Options.
!                                                              (line  489)
! * mavx:                                  x86 Options.        (line  616)
! * mavx2:                                 x86 Options.        (line  617)
! * mavx256-split-unaligned-load:          x86 Options.        (line 1101)
! * mavx256-split-unaligned-store:         x86 Options.        (line 1101)
! * mavx512bw:                             x86 Options.        (line  623)
! * mavx512cd:                             x86 Options.        (line  621)
! * mavx512dq:                             x86 Options.        (line  624)
! * mavx512er:                             x86 Options.        (line  620)
! * mavx512f:                              x86 Options.        (line  618)
! * mavx512ifma:                           x86 Options.        (line  625)
! * mavx512pf:                             x86 Options.        (line  619)
! * mavx512vbmi:                           x86 Options.        (line  626)
! * mavx512vl:                             x86 Options.        (line  622)
  * max-vect-align:                        Adapteva Epiphany Options.
!                                                              (line  120)
  * mb:                                    SH Options.         (line  126)
  * mbackchain:                            S/390 and zSeries Options.
                                                               (line   35)
  * mbarrel-shift-enabled:                 LM32 Options.       (line    9)
  * mbarrel-shifter:                       ARC Options.        (line   10)
! * mbarrel_shifter:                       ARC Options.        (line  495)
! * mbase-addresses:                       MMIX Options.       (line   54)
  * mbased=:                               MeP Options.        (line   20)
! * mbbit-peephole:                        ARC Options.        (line  333)
  * mbcopy:                                PDP-11 Options.     (line   36)
  * mbcopy-builtin:                        PDP-11 Options.     (line   32)
  * mbig:                                  RS/6000 and PowerPC Options.
!                                                              (line  569)
! * mbig-endian <1>:                       TILE-Gx Options.    (line   29)
! * mbig-endian <2>:                       RS/6000 and PowerPC Options.
!                                                              (line  569)
! * mbig-endian <3>:                       NDS32 Options.      (line    9)
! * mbig-endian <4>:                       MicroBlaze Options. (line   57)
! * mbig-endian <5>:                       MCore Options.      (line   39)
! * mbig-endian <6>:                       IA-64 Options.      (line    9)
! * mbig-endian <7>:                       C6X Options.        (line   13)
! * mbig-endian <8>:                       ARM Options.        (line   61)
! * mbig-endian <9>:                       ARC Options.        (line  481)
  * mbig-endian:                           AArch64 Options.    (line   20)
  * mbig-endian-data:                      RX Options.         (line   42)
  * mbig-switch:                           V850 Options.       (line  176)
  * mbigtable:                             SH Options.         (line  141)
  * mbionic:                               GNU/Linux Options.  (line   22)
  * mbit-align:                            RS/6000 and PowerPC Options.
!                                                              (line  521)
  * mbit-ops:                              CR16 Options.       (line   25)
! * mbitfield:                             M680x0 Options.     (line  235)
! * mbitops <1>:                           SH Options.         (line  145)
  * mbitops:                               MeP Options.        (line   26)
  * mblock-move-inline-limit:              RS/6000 and PowerPC Options.
!                                                              (line  803)
! * mbmi:                                  x86 Options.        (line  642)
  * mbranch-cheap:                         PDP-11 Options.     (line   65)
- * mbranch-cost <1>:                      MIPS Options.       (line  757)
- * mbranch-cost <2>:                      AVR Options.        (line  163)
  * mbranch-cost:                          Adapteva Epiphany Options.
                                                               (line   18)
! * mbranch-cost=NUM:                      SH Options.         (line  338)
  * mbranch-cost=NUMBER:                   M32R/D Options.     (line   82)
  * mbranch-expensive:                     PDP-11 Options.     (line   61)
! * mbranch-hints:                         SPU Options.        (line   27)
! * mbranch-likely:                        MIPS Options.       (line  764)
! * mbranch-predict:                       MMIX Options.       (line   49)
  * mbss-plt:                              RS/6000 and PowerPC Options.
!                                                              (line  189)
  * mbuild-constants:                      DEC Alpha Options.  (line  141)
  * mbwx:                                  DEC Alpha Options.  (line  163)
! * mbypass-cache:                         Nios II Options.    (line   82)
! * mc68000:                               M680x0 Options.     (line   95)
! * mc68020:                               M680x0 Options.     (line  109)
  * mc=:                                   MeP Options.        (line   31)
  * mcache-block-size:                     NDS32 Options.      (line   48)
! * mcache-size:                           SPU Options.        (line   70)
! * mcache-volatile:                       Nios II Options.    (line   88)
  * mcall-eabi:                            RS/6000 and PowerPC Options.
!                                                              (line  644)
  * mcall-freebsd:                         RS/6000 and PowerPC Options.
!                                                              (line  658)
  * mcall-linux:                           RS/6000 and PowerPC Options.
!                                                              (line  654)
  * mcall-netbsd:                          RS/6000 and PowerPC Options.
!                                                              (line  662)
! * mcall-prologues:                       AVR Options.        (line  168)
  * mcall-sysv:                            RS/6000 and PowerPC Options.
!                                                              (line  636)
  * mcall-sysv-eabi:                       RS/6000 and PowerPC Options.
!                                                              (line  644)
  * mcall-sysv-noeabi:                     RS/6000 and PowerPC Options.
!                                                              (line  647)
  * mcallee-super-interworking:            ARM Options.        (line  292)
  * mcaller-super-interworking:            ARM Options.        (line  299)
  * mcallgraph-data:                       MCore Options.      (line   31)
! * mcase-vector-pcrel:                    ARC Options.        (line  341)
! * mcbcond:                               SPARC Options.      (line  247)
! * mcbranch-force-delay-slot:             SH Options.         (line  353)
! * mcc-init:                              CRIS Options.       (line   41)
! * mcfv4e:                                M680x0 Options.     (line  172)
! * mcheck-zero-division:                  MIPS Options.       (line  551)
  * mcix:                                  DEC Alpha Options.  (line  163)
! * mcld:                                  x86 Options.        (line  701)
  * mclear-hwcap:                          Solaris 2 Options.  (line    9)
! * mclfushopt:                            x86 Options.        (line  630)
  * mclip:                                 MeP Options.        (line   35)
! * mclzero:                               x86 Options.        (line  654)
! * mcmodel <1>:                           SPARC Options.      (line  285)
  * mcmodel:                               NDS32 Options.      (line   55)
! * mcmodel=kernel:                        x86 Options.        (line 1159)
! * mcmodel=large <1>:                     x86 Options.        (line 1171)
! * mcmodel=large <2>:                     TILE-Gx Options.    (line   14)
! * mcmodel=large <3>:                     RS/6000 and PowerPC Options.
!                                                              (line  130)
  * mcmodel=large:                         AArch64 Options.    (line   47)
! * mcmodel=medium <1>:                    x86 Options.        (line 1164)
  * mcmodel=medium:                        RS/6000 and PowerPC Options.
!                                                              (line  126)
! * mcmodel=small <1>:                     x86 Options.        (line 1153)
! * mcmodel=small <2>:                     TILE-Gx Options.    (line    9)
! * mcmodel=small <3>:                     RS/6000 and PowerPC Options.
!                                                              (line  122)
  * mcmodel=small:                         AArch64 Options.    (line   41)
  * mcmodel=tiny:                          AArch64 Options.    (line   34)
  * mcmov:                                 NDS32 Options.      (line   21)
  * mcmove:                                Adapteva Epiphany Options.
                                                               (line   23)
  * mcmpb:                                 RS/6000 and PowerPC Options.
                                                               (line   27)
! * mcode-density:                         ARC Options.        (line  109)
! * mcode-readable:                        MIPS Options.       (line  511)
  * mcode-region:                          MSP430 Options.     (line   93)
! * mcompact-branches=always:              MIPS Options.       (line  776)
! * mcompact-branches=never:               MIPS Options.       (line  776)
! * mcompact-branches=optimal:             MIPS Options.       (line  776)
! * mcompact-casesi:                       ARC Options.        (line  345)
  * mcompat-align-parm:                    RS/6000 and PowerPC Options.
                                                               (line  983)
! * mcond-exec:                            FRV Options.        (line  152)
! * mcond-move:                            FRV Options.        (line  128)
  * mconfig=:                              MeP Options.        (line   39)
  * mconsole:                              x86 Windows Options.
                                                               (line    9)
--- 52147,52434 ----
  * m4a-single-only:                       SH Options.         (line  110)
  * m4al:                                  SH Options.         (line  121)
  * m4byte-functions:                      MCore Options.      (line   27)
! * m5200:                                 M680x0 Options.     (line  144)
! * m5206e:                                M680x0 Options.     (line  153)
! * m528x:                                 M680x0 Options.     (line  157)
! * m5307:                                 M680x0 Options.     (line  161)
! * m5407:                                 M680x0 Options.     (line  165)
  * m64:                                   Nvidia PTX Options. (line   10)
! * m64 <1>:                               RS/6000 and PowerPC Options.
!                                                              (line  341)
! * m64 <2>:                               S/390 and zSeries Options.
!                                                              (line   86)
! * m64 <3>:                               SPARC Options.      (line  277)
! * m64 <4>:                               TILE-Gx Options.    (line   23)
! * m64 <5>:                               x86 Options.        (line 1147)
  * m64bit-doubles:                        RL78 Options.       (line   73)
! * m64bit-doubles <1>:                    RX Options.         (line   10)
! * m68000:                                M680x0 Options.     (line   93)
! * m68010:                                M680x0 Options.     (line  101)
! * m68020:                                M680x0 Options.     (line  107)
! * m68020-40:                             M680x0 Options.     (line  175)
! * m68020-60:                             M680x0 Options.     (line  184)
! * m68030:                                M680x0 Options.     (line  112)
! * m68040:                                M680x0 Options.     (line  117)
! * m68060:                                M680x0 Options.     (line  126)
! * m68881:                                M680x0 Options.     (line  194)
  * m8-bit:                                CRIS Options.       (line   64)
! * m8bit-idiv:                            x86 Options.        (line 1086)
  * m8byte-align:                          V850 Options.       (line  170)
! * m96bit-long-double:                    x86 Options.        (line  415)
  * mA6:                                   ARC Options.        (line   19)
! * mA7:                                   ARC Options.        (line   29)
  * mabi:                                  AArch64 Options.    (line    9)
! * mabi <1>:                              ARM Options.        (line    9)
! * mabi <2>:                              RS/6000 and PowerPC Options.
!                                                              (line  675)
! * mabi <3>:                              x86 Options.        (line  821)
! * mabi=32:                               MIPS Options.       (line  155)
! * mabi=64:                               MIPS Options.       (line  155)
! * mabi=eabi:                             MIPS Options.       (line  155)
  * mabi=elfv1:                            RS/6000 and PowerPC Options.
!                                                              (line  696)
  * mabi=elfv2:                            RS/6000 and PowerPC Options.
!                                                              (line  702)
  * mabi=gnu:                              MMIX Options.       (line   20)
  * mabi=ibmlongdouble:                    RS/6000 and PowerPC Options.
!                                                              (line  688)
  * mabi=ieeelongdouble:                   RS/6000 and PowerPC Options.
!                                                              (line  692)
  * mabi=mmixware:                         MMIX Options.       (line   20)
! * mabi=n32:                              MIPS Options.       (line  155)
  * mabi=no-spe:                           RS/6000 and PowerPC Options.
!                                                              (line  685)
! * mabi=o64:                              MIPS Options.       (line  155)
  * mabi=spe:                              RS/6000 and PowerPC Options.
!                                                              (line  680)
! * mabicalls:                             MIPS Options.       (line  191)
! * mabm:                                  x86 Options.        (line  635)
! * mabort-on-noreturn:                    ARM Options.        (line  198)
! * mabs=2008:                             MIPS Options.       (line  299)
! * mabs=legacy:                           MIPS Options.       (line  299)
  * mabsdiff:                              MeP Options.        (line    7)
  * mabshi:                                PDP-11 Options.     (line   55)
  * mac0:                                  PDP-11 Options.     (line   16)
! * macc-4:                                FRV Options.        (line  139)
! * macc-8:                                FRV Options.        (line  143)
! * maccumulate-args:                      AVR Options.        (line  150)
! * maccumulate-outgoing-args:             SH Options.         (line  314)
! * maccumulate-outgoing-args <1>:         x86 Options.        (line  844)
! * maddress-mode=long:                    x86 Options.        (line 1197)
! * maddress-mode=short:                   x86 Options.        (line 1202)
! * maddress-space-conversion:             SPU Options.        (line   68)
  * mads:                                  RS/6000 and PowerPC Options.
!                                                              (line  730)
! * maes:                                  x86 Options.        (line  622)
  * maix-struct-return:                    RS/6000 and PowerPC Options.
!                                                              (line  668)
  * maix32:                                RS/6000 and PowerPC Options.
!                                                              (line  379)
  * maix64:                                RS/6000 and PowerPC Options.
!                                                              (line  379)
  * malign-300:                            H8/300 Options.     (line   41)
! * malign-call:                           ARC Options.        (line  317)
! * malign-data:                           x86 Options.        (line  455)
! * malign-double:                         x86 Options.        (line  400)
! * malign-int:                            M680x0 Options.     (line  263)
! * malign-labels:                         FRV Options.        (line  128)
  * malign-loops:                          M32R/D Options.     (line   73)
  * malign-natural:                        RS/6000 and PowerPC Options.
!                                                              (line  417)
  * malign-power:                          RS/6000 and PowerPC Options.
!                                                              (line  417)
  * mall-opts:                             MeP Options.        (line   11)
! * malloc-cc:                             FRV Options.        (line   31)
  * mallow-string-insns:                   RX Options.         (line  150)
  * mallregs:                              RL78 Options.       (line   66)
  * maltivec:                              RS/6000 and PowerPC Options.
!                                                              (line  135)
  * maltivec=be:                           RS/6000 and PowerPC Options.
!                                                              (line  151)
  * maltivec=le:                           RS/6000 and PowerPC Options.
!                                                              (line  161)
  * mam33:                                 MN10300 Options.    (line   17)
  * mam33-2:                               MN10300 Options.    (line   24)
  * mam34:                                 MN10300 Options.    (line   27)
  * mandroid:                              GNU/Linux Options.  (line   26)
! * mannotate-align:                       ARC Options.        (line  265)
  * mapcs:                                 ARM Options.        (line   21)
  * mapcs-frame:                           ARM Options.        (line   13)
  * mapp-regs:                             SPARC Options.      (line   10)
+ * mapp-regs <1>:                         V850 Options.       (line  181)
  * mARC600:                               ARC Options.        (line   19)
! * mARC601:                               ARC Options.        (line   25)
! * mARC700:                               ARC Options.        (line   29)
! * march:                                 AArch64 Options.    (line   94)
! * march <1>:                             ARM Options.        (line   65)
! * march <2>:                             C6X Options.        (line    7)
! * march <3>:                             CRIS Options.       (line   10)
! * march <4>:                             HPPA Options.       (line    9)
! * march <5>:                             HPPA Options.       (line  162)
  * march <6>:                             M680x0 Options.     (line   12)
! * march <7>:                             MIPS Options.       (line   14)
! * march <8>:                             NDS32 Options.      (line   52)
! * march <9>:                             Nios II Options.    (line   70)
! * march <10>:                            S/390 and zSeries Options.
!                                                              (line  148)
! * march <11>:                            x86 Options.        (line    9)
! * marclinux:                             ARC Options.        (line  271)
! * marclinux_prof:                        ARC Options.        (line  278)
! * margonaut:                             ARC Options.        (line  465)
! * marm:                                  ARM Options.        (line  268)
  * mas100-syntax:                         RX Options.         (line   76)
  * masm-hex:                              MSP430 Options.     (line    9)
  * masm-syntax-unified:                   ARM Options.        (line  363)
! * masm=DIALECT:                          x86 Options.        (line  354)
! * matomic:                               ARC Options.        (line   96)
  * matomic-model=MODEL:                   SH Options.         (line  193)
! * matomic-updates:                       SPU Options.        (line   83)
  * mauto-litpools:                        Xtensa Options.     (line   60)
! * mauto-modify-reg:                      ARC Options.        (line  320)
  * mauto-pic:                             IA-64 Options.      (line   50)
  * maverage:                              MeP Options.        (line   16)
  * mavoid-indexed-addresses:              RS/6000 and PowerPC Options.
!                                                              (line  487)
! * mavx:                                  x86 Options.        (line  610)
! * mavx2:                                 x86 Options.        (line  611)
! * mavx256-split-unaligned-load:          x86 Options.        (line 1094)
! * mavx256-split-unaligned-store:         x86 Options.        (line 1094)
! * mavx512bw:                             x86 Options.        (line  617)
! * mavx512cd:                             x86 Options.        (line  615)
! * mavx512dq:                             x86 Options.        (line  618)
! * mavx512er:                             x86 Options.        (line  614)
! * mavx512f:                              x86 Options.        (line  612)
! * mavx512ifma:                           x86 Options.        (line  619)
! * mavx512pf:                             x86 Options.        (line  613)
! * mavx512vbmi:                           x86 Options.        (line  620)
! * mavx512vl:                             x86 Options.        (line  616)
  * max-vect-align:                        Adapteva Epiphany Options.
!                                                              (line  119)
  * mb:                                    SH Options.         (line  126)
  * mbackchain:                            S/390 and zSeries Options.
                                                               (line   35)
  * mbarrel-shift-enabled:                 LM32 Options.       (line    9)
  * mbarrel-shifter:                       ARC Options.        (line   10)
! * mbarrel_shifter:                       ARC Options.        (line  483)
! * mbase-addresses:                       MMIX Options.       (line   53)
  * mbased=:                               MeP Options.        (line   20)
! * mbbit-peephole:                        ARC Options.        (line  323)
  * mbcopy:                                PDP-11 Options.     (line   36)
  * mbcopy-builtin:                        PDP-11 Options.     (line   32)
  * mbig:                                  RS/6000 and PowerPC Options.
!                                                              (line  567)
  * mbig-endian:                           AArch64 Options.    (line   20)
+ * mbig-endian <1>:                       ARC Options.        (line  468)
+ * mbig-endian <2>:                       ARM Options.        (line   61)
+ * mbig-endian <3>:                       C6X Options.        (line   13)
+ * mbig-endian <4>:                       IA-64 Options.      (line    9)
+ * mbig-endian <5>:                       MCore Options.      (line   39)
+ * mbig-endian <6>:                       MicroBlaze Options. (line   57)
+ * mbig-endian <7>:                       NDS32 Options.      (line    9)
+ * mbig-endian <8>:                       RS/6000 and PowerPC Options.
+                                                              (line  567)
+ * mbig-endian <9>:                       TILE-Gx Options.    (line   29)
  * mbig-endian-data:                      RX Options.         (line   42)
  * mbig-switch:                           V850 Options.       (line  176)
  * mbigtable:                             SH Options.         (line  141)
  * mbionic:                               GNU/Linux Options.  (line   22)
  * mbit-align:                            RS/6000 and PowerPC Options.
!                                                              (line  519)
  * mbit-ops:                              CR16 Options.       (line   25)
! * mbitfield:                             M680x0 Options.     (line  231)
  * mbitops:                               MeP Options.        (line   26)
+ * mbitops <1>:                           SH Options.         (line  145)
  * mblock-move-inline-limit:              RS/6000 and PowerPC Options.
!                                                              (line  805)
! * mbmi:                                  x86 Options.        (line  636)
  * mbranch-cheap:                         PDP-11 Options.     (line   65)
  * mbranch-cost:                          Adapteva Epiphany Options.
                                                               (line   18)
! * mbranch-cost <1>:                      AVR Options.        (line  165)
! * mbranch-cost <2>:                      MIPS Options.       (line  745)
! * mbranch-cost=NUM:                      SH Options.         (line  334)
  * mbranch-cost=NUMBER:                   M32R/D Options.     (line   82)
  * mbranch-expensive:                     PDP-11 Options.     (line   61)
! * mbranch-hints:                         SPU Options.        (line   29)
! * mbranch-likely:                        MIPS Options.       (line  752)
! * mbranch-predict:                       MMIX Options.       (line   48)
  * mbss-plt:                              RS/6000 and PowerPC Options.
!                                                              (line  188)
  * mbuild-constants:                      DEC Alpha Options.  (line  141)
  * mbwx:                                  DEC Alpha Options.  (line  163)
! * mbypass-cache:                         Nios II Options.    (line   79)
! * mc68000:                               M680x0 Options.     (line   93)
! * mc68020:                               M680x0 Options.     (line  107)
  * mc=:                                   MeP Options.        (line   31)
  * mcache-block-size:                     NDS32 Options.      (line   48)
! * mcache-size:                           SPU Options.        (line   75)
! * mcache-volatile:                       Nios II Options.    (line   85)
  * mcall-eabi:                            RS/6000 and PowerPC Options.
!                                                              (line  642)
  * mcall-freebsd:                         RS/6000 and PowerPC Options.
!                                                              (line  656)
  * mcall-linux:                           RS/6000 and PowerPC Options.
!                                                              (line  652)
  * mcall-netbsd:                          RS/6000 and PowerPC Options.
!                                                              (line  660)
! * mcall-netbsd <1>:                      RS/6000 and PowerPC Options.
!                                                              (line  664)
! * mcall-prologues:                       AVR Options.        (line  170)
  * mcall-sysv:                            RS/6000 and PowerPC Options.
!                                                              (line  634)
  * mcall-sysv-eabi:                       RS/6000 and PowerPC Options.
!                                                              (line  642)
  * mcall-sysv-noeabi:                     RS/6000 and PowerPC Options.
!                                                              (line  645)
  * mcallee-super-interworking:            ARM Options.        (line  292)
+ * mcaller-copies:                        HPPA Options.       (line   23)
  * mcaller-super-interworking:            ARM Options.        (line  299)
  * mcallgraph-data:                       MCore Options.      (line   31)
! * mcase-vector-pcrel:                    ARC Options.        (line  331)
! * mcbcond:                               SPARC Options.      (line  244)
! * mcbranch-force-delay-slot:             SH Options.         (line  349)
! * mcc-init:                              CRIS Options.       (line   42)
! * mcfv4e:                                M680x0 Options.     (line  169)
! * mcheck-zero-division:                  MIPS Options.       (line  547)
  * mcix:                                  DEC Alpha Options.  (line  163)
! * mcld:                                  x86 Options.        (line  694)
  * mclear-hwcap:                          Solaris 2 Options.  (line    9)
! * mclflushopt:                           x86 Options.        (line  624)
  * mclip:                                 MeP Options.        (line   35)
! * mclzero:                               x86 Options.        (line  648)
  * mcmodel:                               NDS32 Options.      (line   55)
! * mcmodel <1>:                           SPARC Options.      (line  282)
! * mcmodel=kernel:                        x86 Options.        (line 1181)
  * mcmodel=large:                         AArch64 Options.    (line   47)
! * mcmodel=large <1>:                     RS/6000 and PowerPC Options.
!                                                              (line  129)
! * mcmodel=large <2>:                     TILE-Gx Options.    (line   14)
! * mcmodel=large <3>:                     x86 Options.        (line 1193)
  * mcmodel=medium:                        RS/6000 and PowerPC Options.
!                                                              (line  125)
! * mcmodel=medium <1>:                    x86 Options.        (line 1186)
  * mcmodel=small:                         AArch64 Options.    (line   41)
+ * mcmodel=small <1>:                     RS/6000 and PowerPC Options.
+                                                              (line  121)
+ * mcmodel=small <2>:                     TILE-Gx Options.    (line    9)
+ * mcmodel=small <3>:                     x86 Options.        (line 1175)
  * mcmodel=tiny:                          AArch64 Options.    (line   34)
  * mcmov:                                 NDS32 Options.      (line   21)
  * mcmove:                                Adapteva Epiphany Options.
                                                               (line   23)
  * mcmpb:                                 RS/6000 and PowerPC Options.
                                                               (line   27)
! * mcode-density:                         ARC Options.        (line  104)
! * mcode-readable:                        MIPS Options.       (line  507)
  * mcode-region:                          MSP430 Options.     (line   93)
! * mcompact-branches=always:              MIPS Options.       (line  764)
! * mcompact-branches=never:               MIPS Options.       (line  764)
! * mcompact-branches=optimal:             MIPS Options.       (line  764)
! * mcompact-casesi:                       ARC Options.        (line  335)
  * mcompat-align-parm:                    RS/6000 and PowerPC Options.
                                                               (line  983)
! * mcond-exec:                            FRV Options.        (line  187)
! * mcond-move:                            FRV Options.        (line  159)
  * mconfig=:                              MeP Options.        (line   39)
  * mconsole:                              x86 Windows Options.
                                                               (line    9)
*************** look up both forms.
*** 52865,53572 ****
  * mcop:                                  MeP Options.        (line   48)
  * mcop32:                                MeP Options.        (line   53)
  * mcop64:                                MeP Options.        (line   56)
! * mcorea:                                Blackfin Options.   (line  157)
! * mcoreb:                                Blackfin Options.   (line  164)
! * mcpu <1>:                              x86 Options.        (line  308)
! * mcpu <2>:                              Visium Options.     (line   33)
! * mcpu <3>:                              TILEPro Options.    (line    9)
! * mcpu <4>:                              TILE-Gx Options.    (line   18)
! * mcpu <5>:                              SPARC Options.      (line  112)
! * mcpu <6>:                              RX Options.         (line   30)
! * mcpu <7>:                              RS/6000 and PowerPC Options.
!                                                              (line   69)
  * mcpu <8>:                              RL78 Options.       (line   32)
! * mcpu <9>:                              picoChip Options.   (line    9)
! * mcpu <10>:                             M680x0 Options.     (line   28)
! * mcpu <11>:                             FRV Options.        (line  212)
! * mcpu <12>:                             DEC Alpha Options.  (line  215)
! * mcpu <13>:                             CRIS Options.       (line   10)
! * mcpu <14>:                             ARM Options.        (line  133)
! * mcpu <15>:                             ARC Options.        (line   14)
! * mcpu:                                  AArch64 Options.    (line  146)
! * mcpu32:                                M680x0 Options.     (line  138)
! * mcpu= <1>:                             MSP430 Options.     (line   42)
! * mcpu= <2>:                             MicroBlaze Options. (line   20)
! * mcpu= <3>:                             M32C Options.       (line    7)
  * mcpu=:                                 Blackfin Options.   (line    7)
  * mcr16c:                                CR16 Options.       (line   14)
  * mcr16cplus:                            CR16 Options.       (line   14)
! * mcrc32:                                x86 Options.        (line  748)
  * mcrypto:                               RS/6000 and PowerPC Options.
!                                                              (line  229)
! * mcsync-anomaly:                        Blackfin Options.   (line   60)
! * mctor-dtor:                            NDS32 Options.      (line   71)
! * mcustom-fpu-cfg:                       Nios II Options.    (line  239)
! * mcustom-INSN:                          Nios II Options.    (line  118)
! * mcx16:                                 x86 Options.        (line  725)
  * MD:                                    Preprocessor Options.
!                                                              (line  274)
  * mdalign:                               SH Options.         (line  132)
  * mdata-align:                           CRIS Options.       (line   55)
  * mdata-model:                           CR16 Options.       (line   28)
  * mdata-region:                          MSP430 Options.     (line   93)
  * mdc:                                   MeP Options.        (line   62)
- * mdebug <1>:                            Visium Options.     (line    7)
- * mdebug <2>:                            S/390 and zSeries Options.
-                                                              (line  146)
  * mdebug:                                M32R/D Options.     (line   69)
  * mdebug-main=PREFIX:                    VMS Options.        (line   13)
  * mdec-asm:                              PDP-11 Options.     (line   72)
  * mdirect-move:                          RS/6000 and PowerPC Options.
!                                                              (line  235)
  * mdisable-callt:                        V850 Options.       (line   92)
! * mdisable-fpregs:                       HPPA Options.       (line   27)
! * mdisable-indexing:                     HPPA Options.       (line   33)
! * mdiv <1>:                              MeP Options.        (line   65)
! * mdiv <2>:                              MCore Options.      (line   15)
! * mdiv:                                  M680x0 Options.     (line  209)
! * mdiv-rem:                              ARC Options.        (line  106)
! * mdiv=STRATEGY:                         SH Options.         (line  287)
! * mdivide-breaks:                        MIPS Options.       (line  557)
  * mdivide-enabled:                       LM32 Options.       (line   12)
! * mdivide-traps:                         MIPS Options.       (line  557)
! * mdivsi3_libfunc=NAME:                  SH Options.         (line  324)
  * mdll:                                  x86 Windows Options.
                                                               (line   16)
  * mdlmzb:                                RS/6000 and PowerPC Options.
!                                                              (line  514)
! * mdmx:                                  MIPS Options.       (line  378)
! * mdouble:                               FRV Options.        (line   38)
  * mdouble-float <1>:                     RS/6000 and PowerPC Options.
!                                                              (line  437)
! * mdouble-float:                         MIPS Options.       (line  290)
! * mdpfp:                                 ARC Options.        (line   46)
! * mdpfp-compact:                         ARC Options.        (line   47)
! * mdpfp-fast:                            ARC Options.        (line   51)
! * mdpfp_compact:                         ARC Options.        (line  498)
! * mdpfp_fast:                            ARC Options.        (line  501)
! * mdsp:                                  MIPS Options.       (line  355)
! * mdsp-packa:                            ARC Options.        (line  228)
! * mdsp_packa:                            ARC Options.        (line  504)
! * mdspr2:                                MIPS Options.       (line  361)
! * mdual-nops:                            SPU Options.        (line   90)
! * mdump-tune-features:                   x86 Options.        (line  682)
! * mdvbf:                                 ARC Options.        (line  232)
  * mdwarf2-asm:                           IA-64 Options.      (line   94)
! * mdword:                                FRV Options.        (line   32)
  * mdynamic-no-pic:                       RS/6000 and PowerPC Options.
!                                                              (line  574)
! * mEA:                                   ARC Options.        (line  507)
! * mea:                                   ARC Options.        (line   59)
! * mea32:                                 SPU Options.        (line   55)
! * mea64:                                 SPU Options.        (line   55)
  * meabi:                                 RS/6000 and PowerPC Options.
!                                                              (line  751)
! * mearly-cbranchsi:                      ARC Options.        (line  364)
  * mearly-stop-bits:                      IA-64 Options.      (line  100)
- * meb <1>:                               Score Options.      (line    9)
- * meb <2>:                               Nios II Options.    (line   69)
- * meb <3>:                               Moxie Options.      (line    7)
  * meb:                                   MeP Options.        (line   68)
! * mel <1>:                               Score Options.      (line   12)
! * mel <2>:                               Nios II Options.    (line   69)
! * mel <3>:                               Moxie Options.      (line   11)
  * mel:                                   MeP Options.        (line   71)
! * melf <1>:                              MMIX Options.       (line   44)
  * melf:                                  CRIS Options.       (line   87)
  * memb:                                  RS/6000 and PowerPC Options.
!                                                              (line  746)
! * membedded-data:                        MIPS Options.       (line  498)
  * memregs=:                              M32C Options.       (line   21)
  * mep:                                   V850 Options.       (line   16)
  * mepsilon:                              MMIX Options.       (line   15)
  * merror-reloc:                          SPU Options.        (line   10)
  * mesa:                                  S/390 and zSeries Options.
!                                                              (line   95)
! * metrax100:                             CRIS Options.       (line   26)
! * metrax4:                               CRIS Options.       (line   26)
! * meva:                                  MIPS Options.       (line  405)
! * mexpand-adddi:                         ARC Options.        (line  367)
! * mexplicit-relocs <1>:                  MIPS Options.       (line  542)
  * mexplicit-relocs:                      DEC Alpha Options.  (line  176)
  * mexr:                                  H8/300 Options.     (line   28)
! * mextern-sdata:                         MIPS Options.       (line  460)
  * MF:                                    Preprocessor Options.
                                                               (line  220)
! * mf16c:                                 x86 Options.        (line  633)
! * mfast-fp:                              Blackfin Options.   (line  133)
! * mfast-indirect-calls:                  HPPA Options.       (line   45)
! * mfast-sw-div:                          Nios II Options.    (line   94)
! * mfaster-structs:                       SPARC Options.      (line   92)
! * mfdpic:                                FRV Options.        (line   56)
! * mfentry:                               x86 Options.        (line 1060)
  * mfix:                                  DEC Alpha Options.  (line  163)
! * mfix-24k:                              MIPS Options.       (line  617)
  * mfix-and-continue:                     Darwin Options.     (line  104)
! * mfix-at697f:                           SPARC Options.      (line  267)
  * mfix-cortex-a53-835769:                AArch64 Options.    (line   74)
  * mfix-cortex-a53-843419:                AArch64 Options.    (line   81)
  * mfix-cortex-m3-ldrd:                   ARM Options.        (line  332)
! * mfix-r10000:                           MIPS Options.       (line  644)
! * mfix-r4000:                            MIPS Options.       (line  623)
! * mfix-r4400:                            MIPS Options.       (line  637)
! * mfix-rm7000:                           MIPS Options.       (line  655)
! * mfix-sb1:                              MIPS Options.       (line  681)
! * mfix-ut699:                            SPARC Options.      (line  272)
! * mfix-vr4120:                           MIPS Options.       (line  660)
! * mfix-vr4130:                           MIPS Options.       (line  674)
! * mfixed-cc:                             FRV Options.        (line   28)
! * mfixed-range <1>:                      SPU Options.        (line   47)
! * mfixed-range <2>:                      SH Options.         (line  331)
! * mfixed-range <3>:                      IA-64 Options.      (line  105)
! * mfixed-range:                          HPPA Options.       (line   52)
  * mflat:                                 SPARC Options.      (line   22)
! * mflip-mips16:                          MIPS Options.       (line  128)
  * mfloat-abi:                            ARM Options.        (line   41)
  * mfloat-gprs:                           RS/6000 and PowerPC Options.
!                                                              (line  325)
  * mfloat-ieee:                           DEC Alpha Options.  (line  171)
  * mfloat-vax:                            DEC Alpha Options.  (line  171)
  * mfloat128:                             RS/6000 and PowerPC Options.
!                                                              (line  298)
  * mfloat128-hardware:                    RS/6000 and PowerPC Options.
!                                                              (line  313)
  * mfloat32:                              PDP-11 Options.     (line   52)
  * mfloat64:                              PDP-11 Options.     (line   48)
! * mflush-func:                           MIPS Options.       (line  748)
  * mflush-func=NAME:                      M32R/D Options.     (line   93)
  * mflush-trap=NUMBER:                    M32R/D Options.     (line   86)
! * mfma:                                  x86 Options.        (line  634)
! * mfma4:                                 x86 Options.        (line  635)
! * mfmaf:                                 SPARC Options.      (line  261)
  * mfmovd:                                SH Options.         (line  148)
  * mforce-no-pic:                         Xtensa Options.     (line   41)
! * mfp-exceptions:                        MIPS Options.       (line  796)
  * mfp-mode:                              Adapteva Epiphany Options.
!                                                              (line   72)
  * mfp-reg:                               DEC Alpha Options.  (line   25)
  * mfp-rounding-mode:                     DEC Alpha Options.  (line   85)
  * mfp-trap-mode:                         DEC Alpha Options.  (line   63)
! * mfp16-format:                          ARM Options.        (line  179)
! * mfp32:                                 MIPS Options.       (line  260)
! * mfp64:                                 MIPS Options.       (line  263)
! * mfpmath <1>:                           x86 Options.        (line  311)
! * mfpmath:                               Optimize Options.   (line 1982)
! * mfpr-32:                               FRV Options.        (line   13)
! * mfpr-64:                               FRV Options.        (line   16)
  * mfprnd:                                RS/6000 and PowerPC Options.
                                                               (line   27)
! * mfpu <1>:                              Visium Options.     (line   19)
! * mfpu <2>:                              SPARC Options.      (line   35)
  * mfpu <3>:                              RS/6000 and PowerPC Options.
!                                                              (line  445)
! * mfpu <4>:                              PDP-11 Options.     (line    9)
! * mfpu <5>:                              ARM Options.        (line  153)
! * mfpu:                                  ARC Options.        (line  155)
! * mfpxx:                                 MIPS Options.       (line  266)
! * mframe-header-opt:                     MIPS Options.       (line  859)
  * mfriz:                                 RS/6000 and PowerPC Options.
                                                               (line  954)
! * mfsca:                                 SH Options.         (line  369)
! * mfsgsbase:                             x86 Options.        (line  631)
! * mfsrra:                                SH Options.         (line  378)
  * mfull-regs:                            NDS32 Options.      (line   18)
  * mfull-toc:                             RS/6000 and PowerPC Options.
!                                                              (line  353)
! * mfused-madd <1>:                       Xtensa Options.     (line   19)
! * mfused-madd <2>:                       SH Options.         (line  360)
! * mfused-madd <3>:                       S/390 and zSeries Options.
!                                                              (line  170)
! * mfused-madd <4>:                       RS/6000 and PowerPC Options.
!                                                              (line  498)
! * mfused-madd <5>:                       MIPS Options.       (line  599)
  * mfused-madd:                           IA-64 Options.      (line   88)
! * mfxsr:                                 x86 Options.        (line  645)
! * mg:                                    VAX Options.        (line   17)
  * MG:                                    Preprocessor Options.
                                                               (line  229)
  * mg10:                                  RL78 Options.       (line   62)
  * mg13:                                  RL78 Options.       (line   62)
  * mg14:                                  RL78 Options.       (line   62)
! * mgas:                                  HPPA Options.       (line   68)
  * mgcc-abi:                              V850 Options.       (line  148)
  * mgen-cell-microcode:                   RS/6000 and PowerPC Options.
!                                                              (line  177)
  * mgeneral-regs-only:                    AArch64 Options.    (line   24)
  * mghs:                                  V850 Options.       (line  127)
  * mglibc:                                GNU/Linux Options.  (line    9)
  * mgnu:                                  VAX Options.        (line   13)
  * mgnu-as:                               IA-64 Options.      (line   18)
  * mgnu-ld <1>:                           IA-64 Options.      (line   23)
- * mgnu-ld:                               HPPA Options.       (line  104)
  * mgotplt:                               CRIS Options.       (line   81)
! * mgp32:                                 MIPS Options.       (line  254)
! * mgp64:                                 MIPS Options.       (line  257)
! * mgpopt <1>:                            Nios II Options.    (line   17)
! * mgpopt:                                MIPS Options.       (line  483)
  * mgpr-32:                               FRV Options.        (line    7)
! * mgpr-64:                               FRV Options.        (line   10)
! * mgprel-ro:                             FRV Options.        (line   79)
  * mh:                                    H8/300 Options.     (line   14)
! * mhal:                                  Nios II Options.    (line  285)
  * mhalf-reg-file:                        Adapteva Epiphany Options.
                                                               (line    9)
- * mhard-dfp <1>:                         S/390 and zSeries Options.
-                                                              (line   20)
  * mhard-dfp:                             RS/6000 and PowerPC Options.
                                                               (line   27)
! * mhard-float <1>:                       Visium Options.     (line   19)
! * mhard-float <2>:                       V850 Options.       (line  113)
! * mhard-float <3>:                       SPARC Options.      (line   35)
! * mhard-float <4>:                       S/390 and zSeries Options.
                                                               (line   11)
! * mhard-float <5>:                       RS/6000 and PowerPC Options.
!                                                              (line  431)
! * mhard-float <6>:                       MIPS Options.       (line  269)
! * mhard-float <7>:                       MicroBlaze Options. (line   10)
! * mhard-float <8>:                       M680x0 Options.     (line  197)
! * mhard-float:                           FRV Options.        (line   19)
! * mhard-quad-float:                      SPARC Options.      (line   56)
  * mhardlit:                              MCore Options.      (line   10)
! * mhint-max-distance:                    SPU Options.        (line  102)
! * mhint-max-nops:                        SPU Options.        (line   96)
  * mhotpatch:                             S/390 and zSeries Options.
!                                                              (line  206)
! * mhp-ld:                                HPPA Options.       (line  116)
! * mhtm <1>:                              S/390 and zSeries Options.
!                                                              (line  105)
  * mhtm:                                  RS/6000 and PowerPC Options.
!                                                              (line  241)
! * mhw-div:                               Nios II Options.    (line  103)
! * mhw-mul:                               Nios II Options.    (line  103)
! * mhw-mulx:                              Nios II Options.    (line  103)
  * mhwmult=:                              MSP430 Options.     (line   63)
! * miamcu:                                x86 Options.        (line 1125)
! * micplb:                                Blackfin Options.   (line  178)
! * mid-shared-library:                    Blackfin Options.   (line   81)
! * mieee <1>:                             SH Options.         (line  165)
  * mieee:                                 DEC Alpha Options.  (line   39)
  * mieee-conformant:                      DEC Alpha Options.  (line  134)
! * mieee-fp:                              x86 Options.        (line  368)
  * mieee-with-inexact:                    DEC Alpha Options.  (line   52)
  * milp32:                                IA-64 Options.      (line  121)
! * mimadd:                                MIPS Options.       (line  592)
! * mimpure-text:                          Solaris 2 Options.  (line   16)
! * mincoming-stack-boundary:              x86 Options.        (line  582)
! * mindexed-loads:                        ARC Options.        (line  371)
! * minline-all-stringops:                 x86 Options.        (line  992)
  * minline-float-divide-max-throughput:   IA-64 Options.      (line   58)
  * minline-float-divide-min-latency:      IA-64 Options.      (line   54)
  * minline-ic_invalidate:                 SH Options.         (line  174)
  * minline-int-divide-max-throughput:     IA-64 Options.      (line   69)
  * minline-int-divide-min-latency:        IA-64 Options.      (line   65)
! * minline-plt <1>:                       FRV Options.        (line   64)
! * minline-plt:                           Blackfin Options.   (line  138)
  * minline-sqrt-max-throughput:           IA-64 Options.      (line   80)
  * minline-sqrt-min-latency:              IA-64 Options.      (line   76)
! * minline-stringops-dynamically:         x86 Options.        (line  999)
  * minrt:                                 MSP430 Options.     (line   85)
  * minsert-sched-nops:                    RS/6000 and PowerPC Options.
!                                                              (line  614)
  * mint-register:                         RX Options.         (line  100)
  * mint16:                                PDP-11 Options.     (line   40)
- * mint32 <1>:                            PDP-11 Options.     (line   44)
- * mint32 <2>:                            H8/300 Options.     (line   38)
  * mint32:                                CR16 Options.       (line   22)
! * mint8:                                 AVR Options.        (line  172)
! * minterlink-compressed:                 MIPS Options.       (line  136)
! * minterlink-mips16:                     MIPS Options.       (line  148)
  * mio-volatile:                          MeP Options.        (line   74)
! * mips1:                                 MIPS Options.       (line   80)
! * mips16:                                MIPS Options.       (line  120)
! * mips2:                                 MIPS Options.       (line   83)
! * mips3:                                 MIPS Options.       (line   86)
! * mips32:                                MIPS Options.       (line   92)
! * mips32r3:                              MIPS Options.       (line   95)
! * mips32r5:                              MIPS Options.       (line   98)
! * mips32r6:                              MIPS Options.       (line  101)
! * mips3d:                                MIPS Options.       (line  384)
! * mips4:                                 MIPS Options.       (line   89)
! * mips64:                                MIPS Options.       (line  104)
! * mips64r2:                              MIPS Options.       (line  107)
! * mips64r3:                              MIPS Options.       (line  110)
! * mips64r5:                              MIPS Options.       (line  113)
! * mips64r6:                              MIPS Options.       (line  116)
  * misel:                                 RS/6000 and PowerPC Options.
!                                                              (line  195)
  * misize <1>:                            SH Options.         (line  186)
- * misize:                                ARC Options.        (line  271)
  * misr-vector-size:                      NDS32 Options.      (line   45)
  * missue-rate=NUMBER:                    M32R/D Options.     (line   79)
  * mivc2:                                 MeP Options.        (line   59)
  * mjsr:                                  RX Options.         (line  169)
! * mjump-in-delay:                        HPPA Options.       (line   23)
  * mkernel:                               Darwin Options.     (line   82)
! * mknuthdiv:                             MMIX Options.       (line   33)
! * ml <1>:                                SH Options.         (line  129)
  * ml:                                    MeP Options.        (line   78)
  * mlarge:                                MSP430 Options.     (line   52)
  * mlarge-data:                           DEC Alpha Options.  (line  187)
! * mlarge-data-threshold:                 x86 Options.        (line  468)
! * mlarge-mem:                            SPU Options.        (line   35)
  * mlarge-text:                           DEC Alpha Options.  (line  205)
  * mleadz:                                MeP Options.        (line   81)
! * mleaf-id-shared-library:               Blackfin Options.   (line   92)
  * mlibfuncs:                             MMIX Options.       (line   10)
! * mlibrary-pic:                          FRV Options.        (line  110)
! * mlinked-fp:                            FRV Options.        (line   94)
! * mlinker-opt:                           HPPA Options.       (line   78)
  * mlinux:                                CRIS Options.       (line   91)
  * mlittle:                               RS/6000 and PowerPC Options.
!                                                              (line  563)
! * mlittle-endian <1>:                    TILE-Gx Options.    (line   29)
! * mlittle-endian <2>:                    RS/6000 and PowerPC Options.
!                                                              (line  563)
! * mlittle-endian <3>:                    NDS32 Options.      (line   12)
! * mlittle-endian <4>:                    MicroBlaze Options. (line   60)
! * mlittle-endian <5>:                    MCore Options.      (line   39)
! * mlittle-endian <6>:                    IA-64 Options.      (line   13)
! * mlittle-endian <7>:                    C6X Options.        (line   16)
! * mlittle-endian <8>:                    ARM Options.        (line   57)
! * mlittle-endian <9>:                    ARC Options.        (line  488)
  * mlittle-endian:                        AArch64 Options.    (line   30)
  * mlittle-endian-data:                   RX Options.         (line   42)
  * mliw:                                  MN10300 Options.    (line   54)
! * mll64:                                 ARC Options.        (line  112)
! * mllsc:                                 MIPS Options.       (line  341)
! * mlocal-sdata:                          MIPS Options.       (line  448)
! * mlock:                                 ARC Options.        (line  236)
! * mlong-calls <1>:                       V850 Options.       (line   10)
! * mlong-calls <2>:                       MIPS Options.       (line  578)
! * mlong-calls <3>:                       FRV Options.        (line   99)
! * mlong-calls <4>:                       Blackfin Options.   (line  121)
! * mlong-calls <5>:                       ARM Options.        (line  204)
! * mlong-calls <6>:                       ARC Options.        (line  296)
  * mlong-calls:                           Adapteva Epiphany Options.
                                                               (line   55)
! * mlong-double-128 <1>:                  x86 Options.        (line  448)
  * mlong-double-128:                      S/390 and zSeries Options.
                                                               (line   29)
! * mlong-double-64 <1>:                   x86 Options.        (line  448)
  * mlong-double-64:                       S/390 and zSeries Options.
                                                               (line   29)
! * mlong-double-80:                       x86 Options.        (line  448)
  * mlong-jumps:                           V850 Options.       (line  108)
! * mlong-load-store:                      HPPA Options.       (line   59)
! * mlong32:                               MIPS Options.       (line  423)
! * mlong64:                               MIPS Options.       (line  418)
  * mlongcall:                             RS/6000 and PowerPC Options.
!                                                              (line  823)
  * mlongcalls:                            Xtensa Options.     (line   87)
  * mloop:                                 V850 Options.       (line  121)
! * mlow-64k:                              Blackfin Options.   (line   70)
  * mlp64:                                 IA-64 Options.      (line  121)
! * mlra <1>:                              RS/6000 and PowerPC Options.
!                                                              (line  203)
! * mlra <2>:                              FT32 Options.       (line   16)
! * mlra:                                  ARC Options.        (line  375)
! * mlra-priority-compact:                 ARC Options.        (line  383)
! * mlra-priority-noncompact:              ARC Options.        (line  386)
! * mlra-priority-none:                    ARC Options.        (line  380)
! * mlwp:                                  x86 Options.        (line  638)
! * mlzcnt:                                x86 Options.        (line  644)
! * mm:                                    MeP Options.        (line   84)
  * MM:                                    Preprocessor Options.
                                                               (line  210)
! * mmac <1>:                              Score Options.      (line   21)
  * mmac:                                  CR16 Options.       (line    9)
! * mmac-24:                               ARC Options.        (line  245)
! * mmac-d16:                              ARC Options.        (line  241)
! * mmac_24:                               ARC Options.        (line  510)
! * mmac_d16:                              ARC Options.        (line  513)
! * mmad:                                  MIPS Options.       (line  587)
  * mmainkernel:                           Nvidia PTX Options. (line   13)
  * mmalloc64:                             VMS Options.        (line   17)
  * mmax:                                  DEC Alpha Options.  (line  163)
  * mmax-constant-size:                    RX Options.         (line   82)
! * mmax-stack-frame:                      CRIS Options.       (line   22)
! * mmcount-ra-address:                    MIPS Options.       (line  844)
! * mmcu <1>:                              MIPS Options.       (line  401)
  * mmcu:                                  AVR Options.        (line    9)
  * mmcu=:                                 MSP430 Options.     (line   14)
  * MMD:                                   Preprocessor Options.
!                                                              (line  290)
! * mmedia:                                FRV Options.        (line   44)
! * mmedium-calls:                         ARC Options.        (line  300)
! * mmemcpy <1>:                           MIPS Options.       (line  572)
  * mmemcpy:                               MicroBlaze Options. (line   13)
! * mmemcpy-strategy=STRATEGY:             x86 Options.        (line 1021)
  * mmemory-latency:                       DEC Alpha Options.  (line  268)
! * mmemory-model:                         SPARC Options.      (line  313)
! * mmemset-strategy=STRATEGY:             x86 Options.        (line 1033)
  * mmfcrf:                                RS/6000 and PowerPC Options.
                                                               (line   27)
  * mmfpgpr:                               RS/6000 and PowerPC Options.
                                                               (line   27)
! * mmicromips:                            MIPS Options.       (line  389)
  * mminimal-toc:                          RS/6000 and PowerPC Options.
!                                                              (line  353)
  * mminmax:                               MeP Options.        (line   87)
! * mmitigate-rop:                         x86 Options.        (line 1111)
! * mmixed-code:                           ARC Options.        (line  398)
! * mmmx:                                  x86 Options.        (line  607)
  * mmodel=large:                          M32R/D Options.     (line   33)
  * mmodel=medium:                         M32R/D Options.     (line   27)
  * mmodel=small:                          M32R/D Options.     (line   18)
! * mmovbe:                                x86 Options.        (line  744)
! * mmpx:                                  x86 Options.        (line  652)
! * mmpy-option:                           ARC Options.        (line  115)
! * mms-bitfields:                         x86 Options.        (line  868)
! * mmt:                                   MIPS Options.       (line  397)
  * mmul:                                  RL78 Options.       (line   15)
! * mmul-bug-workaround:                   CRIS Options.       (line   31)
  * mmul.x:                                Moxie Options.      (line   14)
! * mmul32x16:                             ARC Options.        (line   67)
! * mmul64:                                ARC Options.        (line   70)
! * mmuladd:                               FRV Options.        (line   50)
  * mmulhw:                                RS/6000 and PowerPC Options.
!                                                              (line  507)
  * mmult:                                 MeP Options.        (line   90)
  * mmult-bug:                             MN10300 Options.    (line    9)
! * mmultcost:                             ARC Options.        (line  462)
! * mmulti-cond-exec:                      FRV Options.        (line  176)
! * mmulticore:                            Blackfin Options.   (line  142)
  * mmultiple:                             RS/6000 and PowerPC Options.
!                                                              (line  457)
  * mmusl:                                 GNU/Linux Options.  (line   18)
  * mmvcle:                                S/390 and zSeries Options.
!                                                              (line  139)
  * mmvme:                                 RS/6000 and PowerPC Options.
!                                                              (line  727)
! * mmwaitx:                               x86 Options.        (line  653)
  * mn:                                    H8/300 Options.     (line   20)
! * mn-flash:                              AVR Options.        (line  178)
! * mnan=2008:                             MIPS Options.       (line  322)
! * mnan=legacy:                           MIPS Options.       (line  322)
  * mneon-for-64bits:                      ARM Options.        (line  352)
! * mnested-cond-exec:                     FRV Options.        (line  189)
  * mnhwloop:                              Score Options.      (line   15)
  * mno-16-bit:                            NDS32 Options.      (line   42)
  * mno-4byte-functions:                   MCore Options.      (line   27)
  * mno-8byte-align:                       V850 Options.       (line  170)
! * mno-abicalls:                          MIPS Options.       (line  194)
  * mno-abshi:                             PDP-11 Options.     (line   58)
  * mno-ac0:                               PDP-11 Options.     (line   20)
! * mno-address-space-conversion:          SPU Options.        (line   63)
! * mno-align-double:                      x86 Options.        (line  406)
! * mno-align-int:                         M680x0 Options.     (line  267)
  * mno-align-loops:                       M32R/D Options.     (line   76)
! * mno-align-stringops:                   x86 Options.        (line  987)
  * mno-allow-string-insns:                RX Options.         (line  150)
  * mno-altivec:                           RS/6000 and PowerPC Options.
!                                                              (line  136)
  * mno-am33:                              MN10300 Options.    (line   20)
- * mno-app-regs <1>:                      V850 Options.       (line  185)
  * mno-app-regs:                          SPARC Options.      (line   10)
  * mno-as100-syntax:                      RX Options.         (line   76)
! * mno-atomic-updates:                    SPU Options.        (line   78)
  * mno-auto-litpools:                     Xtensa Options.     (line   60)
  * mno-avoid-indexed-addresses:           RS/6000 and PowerPC Options.
!                                                              (line  489)
  * mno-backchain:                         S/390 and zSeries Options.
                                                               (line   35)
! * mno-base-addresses:                    MMIX Options.       (line   54)
  * mno-bit-align:                         RS/6000 and PowerPC Options.
!                                                              (line  521)
! * mno-bitfield:                          M680x0 Options.     (line  231)
! * mno-branch-likely:                     MIPS Options.       (line  764)
! * mno-branch-predict:                    MMIX Options.       (line   49)
! * mno-brcc:                              ARC Options.        (line  336)
  * mno-bwx:                               DEC Alpha Options.  (line  163)
! * mno-bypass-cache:                      Nios II Options.    (line   82)
! * mno-cache-volatile:                    Nios II Options.    (line   88)
  * mno-callgraph-data:                    MCore Options.      (line   31)
! * mno-cbcond:                            SPARC Options.      (line  247)
! * mno-check-zero-division:               MIPS Options.       (line  551)
  * mno-cix:                               DEC Alpha Options.  (line  163)
  * mno-clearbss:                          MicroBlaze Options. (line   16)
  * mno-cmov:                              NDS32 Options.      (line   24)
  * mno-cmpb:                              RS/6000 and PowerPC Options.
                                                               (line   27)
! * mno-cond-exec <1>:                     FRV Options.        (line  158)
! * mno-cond-exec:                         ARC Options.        (line  348)
! * mno-cond-move:                         FRV Options.        (line  134)
  * mno-const-align:                       CRIS Options.       (line   55)
  * mno-const16:                           Xtensa Options.     (line   10)
- * mno-crt0 <1>:                          Moxie Options.      (line   18)
  * mno-crt0:                              MN10300 Options.    (line   43)
  * mno-crypto:                            RS/6000 and PowerPC Options.
!                                                              (line  229)
! * mno-csync-anomaly:                     Blackfin Options.   (line   66)
! * mno-custom-INSN:                       Nios II Options.    (line  118)
  * mno-data-align:                        CRIS Options.       (line   55)
  * mno-debug:                             S/390 and zSeries Options.
!                                                              (line  146)
! * mno-default:                           x86 Options.        (line  697)
  * mno-direct-move:                       RS/6000 and PowerPC Options.
!                                                              (line  235)
  * mno-disable-callt:                     V850 Options.       (line   92)
  * mno-div <1>:                           MCore Options.      (line   15)
- * mno-div:                               M680x0 Options.     (line  209)
  * mno-dlmzb:                             RS/6000 and PowerPC Options.
!                                                              (line  514)
! * mno-double:                            FRV Options.        (line   41)
! * mno-dpfp-lrsr:                         ARC Options.        (line   55)
! * mno-dsp:                               MIPS Options.       (line  355)
! * mno-dspr2:                             MIPS Options.       (line  361)
  * mno-dwarf2-asm:                        IA-64 Options.      (line   94)
! * mno-dword:                             FRV Options.        (line   35)
  * mno-eabi:                              RS/6000 and PowerPC Options.
!                                                              (line  751)
  * mno-early-stop-bits:                   IA-64 Options.      (line  100)
! * mno-eflags:                            FRV Options.        (line  125)
! * mno-embedded-data:                     MIPS Options.       (line  498)
  * mno-ep:                                V850 Options.       (line   16)
  * mno-epsilon:                           MMIX Options.       (line   15)
! * mno-eva:                               MIPS Options.       (line  405)
! * mno-explicit-relocs <1>:               MIPS Options.       (line  542)
  * mno-explicit-relocs:                   DEC Alpha Options.  (line  176)
  * mno-exr:                               H8/300 Options.     (line   33)
! * mno-extern-sdata:                      MIPS Options.       (line  460)
! * mno-fancy-math-387:                    x86 Options.        (line  396)
! * mno-fast-sw-div:                       Nios II Options.    (line   94)
! * mno-faster-structs:                    SPARC Options.      (line   92)
  * mno-fix:                               DEC Alpha Options.  (line  163)
! * mno-fix-24k:                           MIPS Options.       (line  617)
  * mno-fix-cortex-a53-835769:             AArch64 Options.    (line   74)
  * mno-fix-cortex-a53-843419:             AArch64 Options.    (line   81)
! * mno-fix-r10000:                        MIPS Options.       (line  644)
! * mno-fix-r4000:                         MIPS Options.       (line  623)
! * mno-fix-r4400:                         MIPS Options.       (line  637)
  * mno-flat:                              SPARC Options.      (line   22)
! * mno-float:                             MIPS Options.       (line  276)
  * mno-float128:                          RS/6000 and PowerPC Options.
!                                                              (line  298)
  * mno-float128-hardware:                 RS/6000 and PowerPC Options.
!                                                              (line  313)
  * mno-float32:                           PDP-11 Options.     (line   48)
  * mno-float64:                           PDP-11 Options.     (line   52)
  * mno-flush-func:                        M32R/D Options.     (line   98)
  * mno-flush-trap:                        M32R/D Options.     (line   90)
! * mno-fmaf:                              SPARC Options.      (line  261)
  * mno-fp-in-toc:                         RS/6000 and PowerPC Options.
!                                                              (line  353)
  * mno-fp-regs:                           DEC Alpha Options.  (line   25)
! * mno-fp-ret-in-387:                     x86 Options.        (line  386)
  * mno-fprnd:                             RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-fpu <1>:                           Visium Options.     (line   24)
! * mno-fpu:                               SPARC Options.      (line   40)
! * mno-fsca:                              SH Options.         (line  369)
! * mno-fsrra:                             SH Options.         (line  378)
! * mno-fused-madd <1>:                    Xtensa Options.     (line   19)
! * mno-fused-madd <2>:                    SH Options.         (line  360)
! * mno-fused-madd <3>:                    S/390 and zSeries Options.
!                                                              (line  170)
! * mno-fused-madd <4>:                    RS/6000 and PowerPC Options.
!                                                              (line  498)
! * mno-fused-madd <5>:                    MIPS Options.       (line  599)
  * mno-fused-madd:                        IA-64 Options.      (line   88)
  * mno-gnu-as:                            IA-64 Options.      (line   18)
  * mno-gnu-ld:                            IA-64 Options.      (line   23)
  * mno-gotplt:                            CRIS Options.       (line   81)
! * mno-gpopt <1>:                         Nios II Options.    (line   17)
! * mno-gpopt:                             MIPS Options.       (line  483)
! * mno-hard-dfp <1>:                      S/390 and zSeries Options.
!                                                              (line   20)
  * mno-hard-dfp:                          RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-hardlit:                           MCore Options.      (line   10)
- * mno-htm <1>:                           S/390 and zSeries Options.
-                                                              (line  105)
  * mno-htm:                               RS/6000 and PowerPC Options.
!                                                              (line  241)
! * mno-hw-div:                            Nios II Options.    (line  103)
! * mno-hw-mul:                            Nios II Options.    (line  103)
! * mno-hw-mulx:                           Nios II Options.    (line  103)
! * mno-id-shared-library:                 Blackfin Options.   (line   88)
  * mno-ieee:                              SH Options.         (line  165)
! * mno-ieee-fp:                           x86 Options.        (line  368)
! * mno-imadd:                             MIPS Options.       (line  592)
  * mno-inline-float-divide:               IA-64 Options.      (line   62)
  * mno-inline-int-divide:                 IA-64 Options.      (line   73)
  * mno-inline-sqrt:                       IA-64 Options.      (line   84)
  * mno-int16:                             PDP-11 Options.     (line   44)
  * mno-int32:                             PDP-11 Options.     (line   40)
! * mno-interlink-compressed:              MIPS Options.       (line  136)
! * mno-interlink-mips16:                  MIPS Options.       (line  148)
! * mno-interrupts:                        AVR Options.        (line  181)
  * mno-isel:                              RS/6000 and PowerPC Options.
!                                                              (line  195)
  * mno-jsr:                               RX Options.         (line  169)
! * mno-knuthdiv:                          MMIX Options.       (line   33)
! * mno-leaf-id-shared-library:            Blackfin Options.   (line   98)
  * mno-libfuncs:                          MMIX Options.       (line   10)
! * mno-llsc:                              MIPS Options.       (line  341)
! * mno-local-sdata:                       MIPS Options.       (line  448)
! * mno-long-calls <1>:                    V850 Options.       (line   10)
! * mno-long-calls <2>:                    MIPS Options.       (line  578)
! * mno-long-calls <3>:                    HPPA Options.       (line  129)
! * mno-long-calls <4>:                    Blackfin Options.   (line  121)
! * mno-long-calls:                        ARM Options.        (line  204)
  * mno-long-jumps:                        V850 Options.       (line  108)
  * mno-longcall:                          RS/6000 and PowerPC Options.
!                                                              (line  823)
  * mno-longcalls:                         Xtensa Options.     (line   87)
! * mno-low-64k:                           Blackfin Options.   (line   74)
! * mno-lsim <1>:                          MCore Options.      (line   46)
  * mno-lsim:                              FR30 Options.       (line   14)
! * mno-mad:                               MIPS Options.       (line  587)
  * mno-max:                               DEC Alpha Options.  (line  163)
! * mno-mcount-ra-address:                 MIPS Options.       (line  844)
! * mno-mcu:                               MIPS Options.       (line  401)
! * mno-mdmx:                              MIPS Options.       (line  378)
! * mno-media:                             FRV Options.        (line   47)
! * mno-memcpy:                            MIPS Options.       (line  572)
  * mno-mfcrf:                             RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-mfpgpr:                            RS/6000 and PowerPC Options.
                                                               (line   27)
! * mno-millicode:                         ARC Options.        (line  389)
! * mno-mips16:                            MIPS Options.       (line  120)
! * mno-mips3d:                            MIPS Options.       (line  384)
! * mno-mmicromips:                        MIPS Options.       (line  389)
! * mno-mpy:                               ARC Options.        (line   64)
! * mno-ms-bitfields:                      x86 Options.        (line  868)
! * mno-mt:                                MIPS Options.       (line  397)
! * mno-mul-bug-workaround:                CRIS Options.       (line   31)
! * mno-muladd:                            FRV Options.        (line   53)
  * mno-mulhw:                             RS/6000 and PowerPC Options.
!                                                              (line  507)
  * mno-mult-bug:                          MN10300 Options.    (line   13)
! * mno-multi-cond-exec:                   FRV Options.        (line  183)
  * mno-multiple:                          RS/6000 and PowerPC Options.
!                                                              (line  457)
  * mno-mvcle:                             S/390 and zSeries Options.
!                                                              (line  139)
! * mno-nested-cond-exec:                  FRV Options.        (line  195)
! * mno-odd-spreg:                         MIPS Options.       (line  295)
  * mno-omit-leaf-frame-pointer:           AArch64 Options.    (line   57)
! * mno-optimize-membar:                   FRV Options.        (line  205)
  * mno-opts:                              MeP Options.        (line   93)
! * mno-pack:                              FRV Options.        (line  122)
  * mno-packed-stack:                      S/390 and zSeries Options.
                                                               (line   54)
  * mno-paired:                            RS/6000 and PowerPC Options.
!                                                              (line  214)
! * mno-paired-single:                     MIPS Options.       (line  372)
  * mno-perf-ext:                          NDS32 Options.      (line   30)
  * mno-pic:                               IA-64 Options.      (line   26)
  * mno-pid:                               RX Options.         (line  117)
! * mno-plt:                               MIPS Options.       (line  221)
! * mno-popc:                              SPARC Options.      (line  254)
  * mno-popcntb:                           RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-popcntd:                           RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-postinc:                           Adapteva Epiphany Options.
!                                                              (line  110)
  * mno-postmodify:                        Adapteva Epiphany Options.
!                                                              (line  110)
  * mno-power8-fusion:                     RS/6000 and PowerPC Options.
!                                                              (line  247)
  * mno-power8-vector:                     RS/6000 and PowerPC Options.
!                                                              (line  253)
  * mno-powerpc-gfxopt:                    RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-powerpc-gpopt:                     RS/6000 and PowerPC Options.
--- 52438,53145 ----
  * mcop:                                  MeP Options.        (line   48)
  * mcop32:                                MeP Options.        (line   53)
  * mcop64:                                MeP Options.        (line   56)
! * mcorea:                                Blackfin Options.   (line  156)
! * mcoreb:                                Blackfin Options.   (line  163)
! * mcpu:                                  AArch64 Options.    (line  145)
! * mcpu <1>:                              ARC Options.        (line   14)
! * mcpu <2>:                              ARM Options.        (line  133)
! * mcpu <3>:                              CRIS Options.       (line   10)
! * mcpu <4>:                              DEC Alpha Options.  (line  215)
! * mcpu <5>:                              FRV Options.        (line  258)
! * mcpu <6>:                              M680x0 Options.     (line   28)
! * mcpu <7>:                              picoChip Options.   (line    9)
  * mcpu <8>:                              RL78 Options.       (line   32)
! * mcpu <9>:                              RS/6000 and PowerPC Options.
!                                                              (line   68)
! * mcpu <10>:                             RX Options.         (line   30)
! * mcpu <11>:                             SPARC Options.      (line  110)
! * mcpu <12>:                             TILE-Gx Options.    (line   18)
! * mcpu <13>:                             TILEPro Options.    (line    9)
! * mcpu <14>:                             Visium Options.     (line   33)
! * mcpu <15>:                             x86 Options.        (line  302)
! * mcpu32:                                M680x0 Options.     (line  135)
  * mcpu=:                                 Blackfin Options.   (line    7)
+ * mcpu= <1>:                             M32C Options.       (line    7)
+ * mcpu= <2>:                             MicroBlaze Options. (line   20)
+ * mcpu= <3>:                             MSP430 Options.     (line   42)
  * mcr16c:                                CR16 Options.       (line   14)
  * mcr16cplus:                            CR16 Options.       (line   14)
! * mcrc32:                                x86 Options.        (line  741)
  * mcrypto:                               RS/6000 and PowerPC Options.
!                                                              (line  228)
! * mcsync-anomaly:                        Blackfin Options.   (line   59)
! * mctor-dtor:                            NDS32 Options.      (line   69)
! * mcustom-fpu-cfg:                       Nios II Options.    (line  235)
! * mcustom-INSN:                          Nios II Options.    (line  115)
! * mcx16:                                 x86 Options.        (line  718)
  * MD:                                    Preprocessor Options.
!                                                              (line  276)
  * mdalign:                               SH Options.         (line  132)
  * mdata-align:                           CRIS Options.       (line   55)
  * mdata-model:                           CR16 Options.       (line   28)
  * mdata-region:                          MSP430 Options.     (line   93)
  * mdc:                                   MeP Options.        (line   62)
  * mdebug:                                M32R/D Options.     (line   69)
+ * mdebug <1>:                            S/390 and zSeries Options.
+                                                              (line  144)
+ * mdebug <2>:                            Visium Options.     (line    7)
  * mdebug-main=PREFIX:                    VMS Options.        (line   13)
  * mdec-asm:                              PDP-11 Options.     (line   72)
  * mdirect-move:                          RS/6000 and PowerPC Options.
!                                                              (line  234)
  * mdisable-callt:                        V850 Options.       (line   92)
! * mdisable-fpregs:                       HPPA Options.       (line   34)
! * mdisable-indexing:                     HPPA Options.       (line   40)
! * mdiv:                                  M680x0 Options.     (line  206)
! * mdiv <1>:                              MCore Options.      (line   15)
! * mdiv <2>:                              MeP Options.        (line   65)
! * mdiv-rem:                              ARC Options.        (line  101)
! * mdiv=STRATEGY:                         SH Options.         (line  284)
! * mdivide-breaks:                        MIPS Options.       (line  553)
  * mdivide-enabled:                       LM32 Options.       (line   12)
! * mdivide-traps:                         MIPS Options.       (line  553)
! * mdivsi3_libfunc=NAME:                  SH Options.         (line  320)
  * mdll:                                  x86 Windows Options.
                                                               (line   16)
  * mdlmzb:                                RS/6000 and PowerPC Options.
!                                                              (line  512)
! * mdmx:                                  MIPS Options.       (line  375)
! * mdouble:                               FRV Options.        (line   48)
! * mdouble-float:                         MIPS Options.       (line  287)
  * mdouble-float <1>:                     RS/6000 and PowerPC Options.
!                                                              (line  435)
! * mdpfp:                                 ARC Options.        (line   41)
! * mdpfp-compact:                         ARC Options.        (line   42)
! * mdpfp-fast:                            ARC Options.        (line   46)
! * mdpfp_compact:                         ARC Options.        (line  486)
! * mdpfp_fast:                            ARC Options.        (line  489)
! * mdsp:                                  MIPS Options.       (line  352)
! * mdsp-packa:                            ARC Options.        (line  220)
! * mdspr2:                                MIPS Options.       (line  358)
! * mdsp_packa:                            ARC Options.        (line  492)
! * mdual-nops:                            SPU Options.        (line   95)
! * mdump-tune-features:                   x86 Options.        (line  676)
! * mdvbf:                                 ARC Options.        (line  224)
  * mdwarf2-asm:                           IA-64 Options.      (line   94)
! * mdword:                                FRV Options.        (line   40)
  * mdynamic-no-pic:                       RS/6000 and PowerPC Options.
!                                                              (line  572)
! * mea:                                   ARC Options.        (line   54)
! * mEA:                                   ARC Options.        (line  495)
! * mea32:                                 SPU Options.        (line   60)
! * mea64:                                 SPU Options.        (line   60)
  * meabi:                                 RS/6000 and PowerPC Options.
!                                                              (line  749)
! * mearly-cbranchsi:                      ARC Options.        (line  354)
  * mearly-stop-bits:                      IA-64 Options.      (line  100)
  * meb:                                   MeP Options.        (line   68)
! * meb <1>:                               Moxie Options.      (line    7)
! * meb <2>:                               Nios II Options.    (line   66)
! * meb <3>:                               Score Options.      (line    9)
  * mel:                                   MeP Options.        (line   71)
! * mel <1>:                               Moxie Options.      (line   11)
! * mel <2>:                               Nios II Options.    (line   66)
! * mel <3>:                               Score Options.      (line   12)
  * melf:                                  CRIS Options.       (line   87)
+ * melf <1>:                              MMIX Options.       (line   43)
  * memb:                                  RS/6000 and PowerPC Options.
!                                                              (line  744)
! * membedded-data:                        MIPS Options.       (line  494)
  * memregs=:                              M32C Options.       (line   21)
  * mep:                                   V850 Options.       (line   16)
  * mepsilon:                              MMIX Options.       (line   15)
  * merror-reloc:                          SPU Options.        (line   10)
  * mesa:                                  S/390 and zSeries Options.
!                                                              (line   94)
! * metrax100:                             CRIS Options.       (line   27)
! * metrax4:                               CRIS Options.       (line   27)
! * meva:                                  MIPS Options.       (line  402)
! * mexpand-adddi:                         ARC Options.        (line  357)
  * mexplicit-relocs:                      DEC Alpha Options.  (line  176)
+ * mexplicit-relocs <1>:                  MIPS Options.       (line  538)
  * mexr:                                  H8/300 Options.     (line   28)
! * mextern-sdata:                         MIPS Options.       (line  457)
  * MF:                                    Preprocessor Options.
                                                               (line  220)
! * mf16c:                                 x86 Options.        (line  627)
! * mfast-fp:                              Blackfin Options.   (line  132)
! * mfast-indirect-calls:                  HPPA Options.       (line   52)
! * mfast-sw-div:                          Nios II Options.    (line   91)
! * mfaster-structs:                       SPARC Options.      (line   91)
! * mfdpic:                                FRV Options.        (line   72)
! * mfentry:                               x86 Options.        (line 1053)
  * mfix:                                  DEC Alpha Options.  (line  163)
! * mfix-24k:                              MIPS Options.       (line  611)
  * mfix-and-continue:                     Darwin Options.     (line  104)
! * mfix-at697f:                           SPARC Options.      (line  264)
  * mfix-cortex-a53-835769:                AArch64 Options.    (line   74)
  * mfix-cortex-a53-843419:                AArch64 Options.    (line   81)
  * mfix-cortex-m3-ldrd:                   ARM Options.        (line  332)
! * mfix-r10000:                           MIPS Options.       (line  633)
! * mfix-r4000:                            MIPS Options.       (line  617)
! * mfix-r4400:                            MIPS Options.       (line  627)
! * mfix-rm7000:                           MIPS Options.       (line  644)
! * mfix-sb1:                              MIPS Options.       (line  669)
! * mfix-ut699:                            SPARC Options.      (line  269)
! * mfix-vr4120:                           MIPS Options.       (line  649)
! * mfix-vr4130:                           MIPS Options.       (line  662)
! * mfixed-cc:                             FRV Options.        (line   35)
! * mfixed-range:                          HPPA Options.       (line   59)
! * mfixed-range <1>:                      IA-64 Options.      (line  105)
! * mfixed-range <2>:                      SH Options.         (line  327)
! * mfixed-range <3>:                      SPU Options.        (line   52)
  * mflat:                                 SPARC Options.      (line   22)
! * mflip-mips16:                          MIPS Options.       (line  127)
  * mfloat-abi:                            ARM Options.        (line   41)
  * mfloat-gprs:                           RS/6000 and PowerPC Options.
!                                                              (line  324)
  * mfloat-ieee:                           DEC Alpha Options.  (line  171)
  * mfloat-vax:                            DEC Alpha Options.  (line  171)
  * mfloat128:                             RS/6000 and PowerPC Options.
!                                                              (line  297)
  * mfloat128-hardware:                    RS/6000 and PowerPC Options.
!                                                              (line  312)
  * mfloat32:                              PDP-11 Options.     (line   52)
  * mfloat64:                              PDP-11 Options.     (line   48)
! * mflush-func:                           MIPS Options.       (line  736)
  * mflush-func=NAME:                      M32R/D Options.     (line   93)
  * mflush-trap=NUMBER:                    M32R/D Options.     (line   86)
! * mfma:                                  x86 Options.        (line  628)
! * mfma4:                                 x86 Options.        (line  629)
! * mfmaf:                                 SPARC Options.      (line  258)
  * mfmovd:                                SH Options.         (line  148)
  * mforce-no-pic:                         Xtensa Options.     (line   41)
! * mfp-exceptions:                        MIPS Options.       (line  784)
  * mfp-mode:                              Adapteva Epiphany Options.
!                                                              (line   71)
  * mfp-reg:                               DEC Alpha Options.  (line   25)
  * mfp-rounding-mode:                     DEC Alpha Options.  (line   85)
  * mfp-trap-mode:                         DEC Alpha Options.  (line   63)
! * mfp16-format:                          ARM Options.        (line  178)
! * mfp32:                                 MIPS Options.       (line  257)
! * mfp64:                                 MIPS Options.       (line  260)
! * mfpmath:                               Optimize Options.   (line 1978)
! * mfpmath <1>:                           x86 Options.        (line  305)
! * mfpr-32:                               FRV Options.        (line   15)
! * mfpr-64:                               FRV Options.        (line   19)
  * mfprnd:                                RS/6000 and PowerPC Options.
                                                               (line   27)
! * mfpu:                                  ARC Options.        (line  149)
! * mfpu <1>:                              ARM Options.        (line  153)
! * mfpu <2>:                              PDP-11 Options.     (line    9)
  * mfpu <3>:                              RS/6000 and PowerPC Options.
!                                                              (line  443)
! * mfpu <4>:                              SPARC Options.      (line   34)
! * mfpu <5>:                              Visium Options.     (line   19)
! * mfpxx:                                 MIPS Options.       (line  263)
! * mframe-header-opt:                     MIPS Options.       (line  845)
  * mfriz:                                 RS/6000 and PowerPC Options.
                                                               (line  954)
! * mfsca:                                 SH Options.         (line  365)
! * mfsgsbase:                             x86 Options.        (line  625)
! * mfsrra:                                SH Options.         (line  374)
  * mfull-regs:                            NDS32 Options.      (line   18)
  * mfull-toc:                             RS/6000 and PowerPC Options.
!                                                              (line  352)
  * mfused-madd:                           IA-64 Options.      (line   88)
! * mfused-madd <1>:                       MIPS Options.       (line  594)
! * mfused-madd <2>:                       RS/6000 and PowerPC Options.
!                                                              (line  496)
! * mfused-madd <3>:                       S/390 and zSeries Options.
!                                                              (line  168)
! * mfused-madd <4>:                       SH Options.         (line  356)
! * mfused-madd <5>:                       Xtensa Options.     (line   19)
! * mfxsr:                                 x86 Options.        (line  639)
  * MG:                                    Preprocessor Options.
                                                               (line  229)
+ * mg:                                    VAX Options.        (line   17)
  * mg10:                                  RL78 Options.       (line   62)
  * mg13:                                  RL78 Options.       (line   62)
  * mg14:                                  RL78 Options.       (line   62)
! * mgas:                                  HPPA Options.       (line   75)
  * mgcc-abi:                              V850 Options.       (line  148)
  * mgen-cell-microcode:                   RS/6000 and PowerPC Options.
!                                                              (line  176)
  * mgeneral-regs-only:                    AArch64 Options.    (line   24)
  * mghs:                                  V850 Options.       (line  127)
  * mglibc:                                GNU/Linux Options.  (line    9)
  * mgnu:                                  VAX Options.        (line   13)
  * mgnu-as:                               IA-64 Options.      (line   18)
+ * mgnu-ld:                               HPPA Options.       (line  111)
  * mgnu-ld <1>:                           IA-64 Options.      (line   23)
  * mgotplt:                               CRIS Options.       (line   81)
! * mgp32:                                 MIPS Options.       (line  251)
! * mgp64:                                 MIPS Options.       (line  254)
! * mgpopt:                                MIPS Options.       (line  479)
! * mgpopt <1>:                            Nios II Options.    (line   16)
  * mgpr-32:                               FRV Options.        (line    7)
! * mgpr-64:                               FRV Options.        (line   11)
! * mgprel-ro:                             FRV Options.        (line   99)
  * mh:                                    H8/300 Options.     (line   14)
! * mhal:                                  Nios II Options.    (line  280)
  * mhalf-reg-file:                        Adapteva Epiphany Options.
                                                               (line    9)
  * mhard-dfp:                             RS/6000 and PowerPC Options.
                                                               (line   27)
! * mhard-dfp <1>:                         S/390 and zSeries Options.
!                                                              (line   20)
! * mhard-float:                           FRV Options.        (line   23)
! * mhard-float <1>:                       M680x0 Options.     (line  194)
! * mhard-float <2>:                       MicroBlaze Options. (line   10)
! * mhard-float <3>:                       MIPS Options.       (line  266)
! * mhard-float <4>:                       RS/6000 and PowerPC Options.
!                                                              (line  429)
! * mhard-float <5>:                       S/390 and zSeries Options.
                                                               (line   11)
! * mhard-float <6>:                       SPARC Options.      (line   34)
! * mhard-float <7>:                       V850 Options.       (line  113)
! * mhard-float <8>:                       Visium Options.     (line   19)
! * mhard-quad-float:                      SPARC Options.      (line   55)
  * mhardlit:                              MCore Options.      (line   10)
! * mhint-max-distance:                    SPU Options.        (line  107)
! * mhint-max-nops:                        SPU Options.        (line  101)
  * mhotpatch:                             S/390 and zSeries Options.
!                                                              (line  203)
! * mhp-ld:                                HPPA Options.       (line  123)
  * mhtm:                                  RS/6000 and PowerPC Options.
!                                                              (line  240)
! * mhtm <1>:                              S/390 and zSeries Options.
!                                                              (line  104)
! * mhw-div:                               Nios II Options.    (line  100)
! * mhw-mul:                               Nios II Options.    (line  100)
! * mhw-mulx:                              Nios II Options.    (line  100)
  * mhwmult=:                              MSP430 Options.     (line   63)
! * miamcu:                                x86 Options.        (line 1147)
! * micplb:                                Blackfin Options.   (line  177)
! * mid-shared-library:                    Blackfin Options.   (line   80)
  * mieee:                                 DEC Alpha Options.  (line   39)
+ * mieee <1>:                             SH Options.         (line  165)
  * mieee-conformant:                      DEC Alpha Options.  (line  134)
! * mieee-fp:                              x86 Options.        (line  362)
  * mieee-with-inexact:                    DEC Alpha Options.  (line   52)
  * milp32:                                IA-64 Options.      (line  121)
! * mimadd:                                MIPS Options.       (line  587)
! * mimpure-text:                          Solaris 2 Options.  (line   15)
! * mincoming-stack-boundary:              x86 Options.        (line  576)
! * mindexed-loads:                        ARC Options.        (line  361)
! * minline-all-stringops:                 x86 Options.        (line  985)
  * minline-float-divide-max-throughput:   IA-64 Options.      (line   58)
  * minline-float-divide-min-latency:      IA-64 Options.      (line   54)
  * minline-ic_invalidate:                 SH Options.         (line  174)
  * minline-int-divide-max-throughput:     IA-64 Options.      (line   69)
  * minline-int-divide-min-latency:        IA-64 Options.      (line   65)
! * minline-plt:                           Blackfin Options.   (line  137)
! * minline-plt <1>:                       FRV Options.        (line   81)
  * minline-sqrt-max-throughput:           IA-64 Options.      (line   80)
  * minline-sqrt-min-latency:              IA-64 Options.      (line   76)
! * minline-stringops-dynamically:         x86 Options.        (line  992)
  * minrt:                                 MSP430 Options.     (line   85)
  * minsert-sched-nops:                    RS/6000 and PowerPC Options.
!                                                              (line  612)
  * mint-register:                         RX Options.         (line  100)
  * mint16:                                PDP-11 Options.     (line   40)
  * mint32:                                CR16 Options.       (line   22)
! * mint32 <1>:                            H8/300 Options.     (line   38)
! * mint32 <2>:                            PDP-11 Options.     (line   44)
! * mint8:                                 AVR Options.        (line  174)
! * minterlink-compressed:                 MIPS Options.       (line  134)
! * minterlink-mips16:                     MIPS Options.       (line  146)
  * mio-volatile:                          MeP Options.        (line   74)
! * mips1:                                 MIPS Options.       (line   79)
! * mips16:                                MIPS Options.       (line  119)
! * mips2:                                 MIPS Options.       (line   82)
! * mips3:                                 MIPS Options.       (line   85)
! * mips32:                                MIPS Options.       (line   91)
! * mips32r3:                              MIPS Options.       (line   94)
! * mips32r5:                              MIPS Options.       (line   97)
! * mips32r6:                              MIPS Options.       (line  100)
! * mips3d:                                MIPS Options.       (line  381)
! * mips4:                                 MIPS Options.       (line   88)
! * mips64:                                MIPS Options.       (line  103)
! * mips64r2:                              MIPS Options.       (line  106)
! * mips64r3:                              MIPS Options.       (line  109)
! * mips64r5:                              MIPS Options.       (line  112)
! * mips64r6:                              MIPS Options.       (line  115)
  * misel:                                 RS/6000 and PowerPC Options.
!                                                              (line  194)
! * misize:                                ARC Options.        (line  262)
  * misize <1>:                            SH Options.         (line  186)
  * misr-vector-size:                      NDS32 Options.      (line   45)
  * missue-rate=NUMBER:                    M32R/D Options.     (line   79)
  * mivc2:                                 MeP Options.        (line   59)
  * mjsr:                                  RX Options.         (line  169)
! * mjump-in-delay:                        HPPA Options.       (line   30)
  * mkernel:                               Darwin Options.     (line   82)
! * mknuthdiv:                             MMIX Options.       (line   32)
  * ml:                                    MeP Options.        (line   78)
+ * ml <1>:                                SH Options.         (line  129)
  * mlarge:                                MSP430 Options.     (line   52)
  * mlarge-data:                           DEC Alpha Options.  (line  187)
! * mlarge-data-threshold:                 x86 Options.        (line  462)
! * mlarge-mem:                            SPU Options.        (line   38)
  * mlarge-text:                           DEC Alpha Options.  (line  205)
  * mleadz:                                MeP Options.        (line   81)
! * mleaf-id-shared-library:               Blackfin Options.   (line   91)
  * mlibfuncs:                             MMIX Options.       (line   10)
! * mlibrary-pic:                          FRV Options.        (line  135)
! * mlinked-fp:                            FRV Options.        (line  116)
! * mlinker-opt:                           HPPA Options.       (line   85)
  * mlinux:                                CRIS Options.       (line   91)
  * mlittle:                               RS/6000 and PowerPC Options.
!                                                              (line  561)
  * mlittle-endian:                        AArch64 Options.    (line   30)
+ * mlittle-endian <1>:                    ARC Options.        (line  476)
+ * mlittle-endian <2>:                    ARM Options.        (line   57)
+ * mlittle-endian <3>:                    C6X Options.        (line   16)
+ * mlittle-endian <4>:                    IA-64 Options.      (line   13)
+ * mlittle-endian <5>:                    MCore Options.      (line   39)
+ * mlittle-endian <6>:                    MicroBlaze Options. (line   60)
+ * mlittle-endian <7>:                    NDS32 Options.      (line   12)
+ * mlittle-endian <8>:                    RS/6000 and PowerPC Options.
+                                                              (line  561)
+ * mlittle-endian <9>:                    TILE-Gx Options.    (line   29)
  * mlittle-endian-data:                   RX Options.         (line   42)
  * mliw:                                  MN10300 Options.    (line   54)
! * mll64:                                 ARC Options.        (line  107)
! * mllsc:                                 MIPS Options.       (line  338)
! * mlocal-sdata:                          MIPS Options.       (line  445)
! * mlock:                                 ARC Options.        (line  228)
  * mlong-calls:                           Adapteva Epiphany Options.
                                                               (line   55)
! * mlong-calls <1>:                       ARC Options.        (line  287)
! * mlong-calls <2>:                       ARM Options.        (line  203)
! * mlong-calls <3>:                       Blackfin Options.   (line  120)
! * mlong-calls <4>:                       FRV Options.        (line  122)
! * mlong-calls <5>:                       MIPS Options.       (line  573)
! * mlong-calls <6>:                       V850 Options.       (line   10)
  * mlong-double-128:                      S/390 and zSeries Options.
                                                               (line   29)
! * mlong-double-128 <1>:                  x86 Options.        (line  441)
  * mlong-double-64:                       S/390 and zSeries Options.
                                                               (line   29)
! * mlong-double-64 <1>:                   x86 Options.        (line  441)
! * mlong-double-80:                       x86 Options.        (line  441)
  * mlong-jumps:                           V850 Options.       (line  108)
! * mlong-load-store:                      HPPA Options.       (line   66)
! * mlong32:                               MIPS Options.       (line  420)
! * mlong64:                               MIPS Options.       (line  415)
  * mlongcall:                             RS/6000 and PowerPC Options.
!                                                              (line  825)
  * mlongcalls:                            Xtensa Options.     (line   87)
  * mloop:                                 V850 Options.       (line  121)
! * mlow-64k:                              Blackfin Options.   (line   69)
  * mlp64:                                 IA-64 Options.      (line  121)
! * mlra:                                  ARC Options.        (line  365)
! * mlra <1>:                              FT32 Options.       (line   16)
! * mlra <2>:                              RS/6000 and PowerPC Options.
!                                                              (line  202)
! * mlra-priority-compact:                 ARC Options.        (line  373)
! * mlra-priority-noncompact:              ARC Options.        (line  376)
! * mlra-priority-none:                    ARC Options.        (line  370)
! * mlwp:                                  x86 Options.        (line  632)
! * mlzcnt:                                x86 Options.        (line  638)
  * MM:                                    Preprocessor Options.
                                                               (line  210)
! * mm:                                    MeP Options.        (line   84)
  * mmac:                                  CR16 Options.       (line    9)
! * mmac <1>:                              Score Options.      (line   21)
! * mmac-24:                               ARC Options.        (line  237)
! * mmac-d16:                              ARC Options.        (line  233)
! * mmac_24:                               ARC Options.        (line  498)
! * mmac_d16:                              ARC Options.        (line  501)
! * mmad:                                  MIPS Options.       (line  582)
  * mmainkernel:                           Nvidia PTX Options. (line   13)
  * mmalloc64:                             VMS Options.        (line   17)
  * mmax:                                  DEC Alpha Options.  (line  163)
  * mmax-constant-size:                    RX Options.         (line   82)
! * mmax-stack-frame:                      CRIS Options.       (line   23)
! * mmcount-ra-address:                    MIPS Options.       (line  832)
  * mmcu:                                  AVR Options.        (line    9)
+ * mmcu <1>:                              MIPS Options.       (line  398)
  * mmcu=:                                 MSP430 Options.     (line   14)
  * MMD:                                   Preprocessor Options.
!                                                              (line  292)
! * mmedia:                                FRV Options.        (line   56)
! * mmedium-calls:                         ARC Options.        (line  291)
  * mmemcpy:                               MicroBlaze Options. (line   13)
! * mmemcpy <1>:                           MIPS Options.       (line  567)
! * mmemcpy-strategy=STRATEGY:             x86 Options.        (line 1014)
  * mmemory-latency:                       DEC Alpha Options.  (line  268)
! * mmemory-model:                         SPARC Options.      (line  310)
! * mmemset-strategy=STRATEGY:             x86 Options.        (line 1026)
  * mmfcrf:                                RS/6000 and PowerPC Options.
                                                               (line   27)
  * mmfpgpr:                               RS/6000 and PowerPC Options.
                                                               (line   27)
! * mmicromips:                            MIPS Options.       (line  386)
  * mminimal-toc:                          RS/6000 and PowerPC Options.
!                                                              (line  352)
  * mminmax:                               MeP Options.        (line   87)
! * mmitigate-rop:                         x86 Options.        (line 1103)
! * mmixed-code:                           ARC Options.        (line  388)
! * mmmx:                                  x86 Options.        (line  601)
  * mmodel=large:                          M32R/D Options.     (line   33)
  * mmodel=medium:                         M32R/D Options.     (line   27)
  * mmodel=small:                          M32R/D Options.     (line   18)
! * mmovbe:                                x86 Options.        (line  737)
! * mmpx:                                  x86 Options.        (line  646)
! * mmpy-option:                           ARC Options.        (line  110)
! * mms-bitfields:                         x86 Options.        (line  860)
! * mmt:                                   MIPS Options.       (line  394)
  * mmul:                                  RL78 Options.       (line   15)
! * mmul-bug-workaround:                   CRIS Options.       (line   32)
  * mmul.x:                                Moxie Options.      (line   14)
! * mmul32x16:                             ARC Options.        (line   62)
! * mmul64:                                ARC Options.        (line   65)
! * mmuladd:                               FRV Options.        (line   64)
  * mmulhw:                                RS/6000 and PowerPC Options.
!                                                              (line  505)
  * mmult:                                 MeP Options.        (line   90)
  * mmult-bug:                             MN10300 Options.    (line    9)
! * mmultcost:                             ARC Options.        (line  450)
! * mmulti-cond-exec:                      FRV Options.        (line  215)
! * mmulticore:                            Blackfin Options.   (line  141)
  * mmultiple:                             RS/6000 and PowerPC Options.
!                                                              (line  455)
  * mmusl:                                 GNU/Linux Options.  (line   18)
  * mmvcle:                                S/390 and zSeries Options.
!                                                              (line  138)
  * mmvme:                                 RS/6000 and PowerPC Options.
!                                                              (line  725)
! * mmwaitx:                               x86 Options.        (line  647)
  * mn:                                    H8/300 Options.     (line   20)
! * mn-flash:                              AVR Options.        (line  180)
! * mnan=2008:                             MIPS Options.       (line  319)
! * mnan=legacy:                           MIPS Options.       (line  319)
  * mneon-for-64bits:                      ARM Options.        (line  352)
! * mnested-cond-exec:                     FRV Options.        (line  230)
  * mnhwloop:                              Score Options.      (line   15)
  * mno-16-bit:                            NDS32 Options.      (line   42)
  * mno-4byte-functions:                   MCore Options.      (line   27)
  * mno-8byte-align:                       V850 Options.       (line  170)
! * mno-abicalls:                          MIPS Options.       (line  191)
  * mno-abshi:                             PDP-11 Options.     (line   58)
  * mno-ac0:                               PDP-11 Options.     (line   20)
! * mno-address-space-conversion:          SPU Options.        (line   68)
! * mno-align-double:                      x86 Options.        (line  400)
! * mno-align-int:                         M680x0 Options.     (line  263)
  * mno-align-loops:                       M32R/D Options.     (line   76)
! * mno-align-stringops:                   x86 Options.        (line  980)
  * mno-allow-string-insns:                RX Options.         (line  150)
  * mno-altivec:                           RS/6000 and PowerPC Options.
!                                                              (line  135)
  * mno-am33:                              MN10300 Options.    (line   20)
  * mno-app-regs:                          SPARC Options.      (line   10)
+ * mno-app-regs <1>:                      V850 Options.       (line  185)
  * mno-as100-syntax:                      RX Options.         (line   76)
! * mno-atomic-updates:                    SPU Options.        (line   83)
  * mno-auto-litpools:                     Xtensa Options.     (line   60)
  * mno-avoid-indexed-addresses:           RS/6000 and PowerPC Options.
!                                                              (line  487)
  * mno-backchain:                         S/390 and zSeries Options.
                                                               (line   35)
! * mno-base-addresses:                    MMIX Options.       (line   53)
  * mno-bit-align:                         RS/6000 and PowerPC Options.
!                                                              (line  519)
! * mno-bitfield:                          M680x0 Options.     (line  227)
! * mno-branch-likely:                     MIPS Options.       (line  752)
! * mno-branch-predict:                    MMIX Options.       (line   48)
! * mno-brcc:                              ARC Options.        (line  326)
  * mno-bwx:                               DEC Alpha Options.  (line  163)
! * mno-bypass-cache:                      Nios II Options.    (line   79)
! * mno-cache-volatile:                    Nios II Options.    (line   85)
  * mno-callgraph-data:                    MCore Options.      (line   31)
! * mno-cbcond:                            SPARC Options.      (line  244)
! * mno-check-zero-division:               MIPS Options.       (line  547)
  * mno-cix:                               DEC Alpha Options.  (line  163)
  * mno-clearbss:                          MicroBlaze Options. (line   16)
  * mno-cmov:                              NDS32 Options.      (line   24)
  * mno-cmpb:                              RS/6000 and PowerPC Options.
                                                               (line   27)
! * mno-cond-exec:                         ARC Options.        (line  338)
! * mno-cond-exec <1>:                     FRV Options.        (line  194)
! * mno-cond-move:                         FRV Options.        (line  166)
  * mno-const-align:                       CRIS Options.       (line   55)
  * mno-const16:                           Xtensa Options.     (line   10)
  * mno-crt0:                              MN10300 Options.    (line   43)
+ * mno-crt0 <1>:                          Moxie Options.      (line   18)
  * mno-crypto:                            RS/6000 and PowerPC Options.
!                                                              (line  228)
! * mno-csync-anomaly:                     Blackfin Options.   (line   65)
! * mno-custom-INSN:                       Nios II Options.    (line  115)
  * mno-data-align:                        CRIS Options.       (line   55)
  * mno-debug:                             S/390 and zSeries Options.
!                                                              (line  144)
! * mno-default:                           x86 Options.        (line  690)
  * mno-direct-move:                       RS/6000 and PowerPC Options.
!                                                              (line  234)
  * mno-disable-callt:                     V850 Options.       (line   92)
+ * mno-div:                               M680x0 Options.     (line  206)
  * mno-div <1>:                           MCore Options.      (line   15)
  * mno-dlmzb:                             RS/6000 and PowerPC Options.
!                                                              (line  512)
! * mno-double:                            FRV Options.        (line   52)
! * mno-dpfp-lrsr:                         ARC Options.        (line   50)
! * mno-dsp:                               MIPS Options.       (line  352)
! * mno-dspr2:                             MIPS Options.       (line  358)
  * mno-dwarf2-asm:                        IA-64 Options.      (line   94)
! * mno-dword:                             FRV Options.        (line   44)
  * mno-eabi:                              RS/6000 and PowerPC Options.
!                                                              (line  749)
  * mno-early-stop-bits:                   IA-64 Options.      (line  100)
! * mno-eflags:                            FRV Options.        (line  155)
! * mno-embedded-data:                     MIPS Options.       (line  494)
  * mno-ep:                                V850 Options.       (line   16)
  * mno-epsilon:                           MMIX Options.       (line   15)
! * mno-eva:                               MIPS Options.       (line  402)
  * mno-explicit-relocs:                   DEC Alpha Options.  (line  176)
+ * mno-explicit-relocs <1>:               MIPS Options.       (line  538)
  * mno-exr:                               H8/300 Options.     (line   33)
! * mno-extern-sdata:                      MIPS Options.       (line  457)
! * mno-fancy-math-387:                    x86 Options.        (line  390)
! * mno-fast-sw-div:                       Nios II Options.    (line   91)
! * mno-faster-structs:                    SPARC Options.      (line   91)
  * mno-fix:                               DEC Alpha Options.  (line  163)
! * mno-fix-24k:                           MIPS Options.       (line  611)
  * mno-fix-cortex-a53-835769:             AArch64 Options.    (line   74)
  * mno-fix-cortex-a53-843419:             AArch64 Options.    (line   81)
! * mno-fix-r10000:                        MIPS Options.       (line  633)
! * mno-fix-r4000:                         MIPS Options.       (line  617)
! * mno-fix-r4400:                         MIPS Options.       (line  627)
  * mno-flat:                              SPARC Options.      (line   22)
! * mno-float:                             MIPS Options.       (line  273)
  * mno-float128:                          RS/6000 and PowerPC Options.
!                                                              (line  297)
  * mno-float128-hardware:                 RS/6000 and PowerPC Options.
!                                                              (line  312)
  * mno-float32:                           PDP-11 Options.     (line   48)
  * mno-float64:                           PDP-11 Options.     (line   52)
  * mno-flush-func:                        M32R/D Options.     (line   98)
  * mno-flush-trap:                        M32R/D Options.     (line   90)
! * mno-fmaf:                              SPARC Options.      (line  258)
  * mno-fp-in-toc:                         RS/6000 and PowerPC Options.
!                                                              (line  352)
  * mno-fp-regs:                           DEC Alpha Options.  (line   25)
! * mno-fp-ret-in-387:                     x86 Options.        (line  380)
  * mno-fprnd:                             RS/6000 and PowerPC Options.
                                                               (line   27)
+ * mno-fpu:                               SPARC Options.      (line   39)
  * mno-fpu <1>:                           Visium Options.     (line   24)
! * mno-fsca:                              SH Options.         (line  365)
! * mno-fsrra:                             SH Options.         (line  374)
  * mno-fused-madd:                        IA-64 Options.      (line   88)
+ * mno-fused-madd <1>:                    MIPS Options.       (line  594)
+ * mno-fused-madd <2>:                    RS/6000 and PowerPC Options.
+                                                              (line  496)
+ * mno-fused-madd <3>:                    S/390 and zSeries Options.
+                                                              (line  168)
+ * mno-fused-madd <4>:                    SH Options.         (line  356)
+ * mno-fused-madd <5>:                    Xtensa Options.     (line   19)
  * mno-gnu-as:                            IA-64 Options.      (line   18)
  * mno-gnu-ld:                            IA-64 Options.      (line   23)
  * mno-gotplt:                            CRIS Options.       (line   81)
! * mno-gpopt:                             MIPS Options.       (line  479)
! * mno-gpopt <1>:                         Nios II Options.    (line   16)
  * mno-hard-dfp:                          RS/6000 and PowerPC Options.
                                                               (line   27)
+ * mno-hard-dfp <1>:                      S/390 and zSeries Options.
+                                                              (line   20)
  * mno-hardlit:                           MCore Options.      (line   10)
  * mno-htm:                               RS/6000 and PowerPC Options.
!                                                              (line  240)
! * mno-htm <1>:                           S/390 and zSeries Options.
!                                                              (line  104)
! * mno-hw-div:                            Nios II Options.    (line  100)
! * mno-hw-mul:                            Nios II Options.    (line  100)
! * mno-hw-mulx:                           Nios II Options.    (line  100)
! * mno-id-shared-library:                 Blackfin Options.   (line   87)
  * mno-ieee:                              SH Options.         (line  165)
! * mno-ieee-fp:                           x86 Options.        (line  362)
! * mno-imadd:                             MIPS Options.       (line  587)
  * mno-inline-float-divide:               IA-64 Options.      (line   62)
  * mno-inline-int-divide:                 IA-64 Options.      (line   73)
  * mno-inline-sqrt:                       IA-64 Options.      (line   84)
  * mno-int16:                             PDP-11 Options.     (line   44)
  * mno-int32:                             PDP-11 Options.     (line   40)
! * mno-interlink-compressed:              MIPS Options.       (line  134)
! * mno-interlink-mips16:                  MIPS Options.       (line  146)
! * mno-interrupts:                        AVR Options.        (line  183)
  * mno-isel:                              RS/6000 and PowerPC Options.
!                                                              (line  194)
  * mno-jsr:                               RX Options.         (line  169)
! * mno-knuthdiv:                          MMIX Options.       (line   32)
! * mno-leaf-id-shared-library:            Blackfin Options.   (line   97)
  * mno-libfuncs:                          MMIX Options.       (line   10)
! * mno-llsc:                              MIPS Options.       (line  338)
! * mno-local-sdata:                       MIPS Options.       (line  445)
! * mno-long-calls:                        ARM Options.        (line  203)
! * mno-long-calls <1>:                    Blackfin Options.   (line  120)
! * mno-long-calls <2>:                    HPPA Options.       (line  136)
! * mno-long-calls <3>:                    MIPS Options.       (line  573)
! * mno-long-calls <4>:                    V850 Options.       (line   10)
  * mno-long-jumps:                        V850 Options.       (line  108)
  * mno-longcall:                          RS/6000 and PowerPC Options.
!                                                              (line  825)
  * mno-longcalls:                         Xtensa Options.     (line   87)
! * mno-low-64k:                           Blackfin Options.   (line   73)
  * mno-lsim:                              FR30 Options.       (line   14)
! * mno-lsim <1>:                          MCore Options.      (line   46)
! * mno-mad:                               MIPS Options.       (line  582)
  * mno-max:                               DEC Alpha Options.  (line  163)
! * mno-mcount-ra-address:                 MIPS Options.       (line  832)
! * mno-mcu:                               MIPS Options.       (line  398)
! * mno-mdmx:                              MIPS Options.       (line  375)
! * mno-media:                             FRV Options.        (line   60)
! * mno-memcpy:                            MIPS Options.       (line  567)
  * mno-mfcrf:                             RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-mfpgpr:                            RS/6000 and PowerPC Options.
                                                               (line   27)
! * mno-millicode:                         ARC Options.        (line  379)
! * mno-mips16:                            MIPS Options.       (line  119)
! * mno-mips3d:                            MIPS Options.       (line  381)
! * mno-mmicromips:                        MIPS Options.       (line  386)
! * mno-mpy:                               ARC Options.        (line   59)
! * mno-ms-bitfields:                      x86 Options.        (line  860)
! * mno-mt:                                MIPS Options.       (line  394)
! * mno-mul-bug-workaround:                CRIS Options.       (line   32)
! * mno-muladd:                            FRV Options.        (line   68)
  * mno-mulhw:                             RS/6000 and PowerPC Options.
!                                                              (line  505)
  * mno-mult-bug:                          MN10300 Options.    (line   13)
! * mno-multi-cond-exec:                   FRV Options.        (line  223)
  * mno-multiple:                          RS/6000 and PowerPC Options.
!                                                              (line  455)
  * mno-mvcle:                             S/390 and zSeries Options.
!                                                              (line  138)
! * mno-nested-cond-exec:                  FRV Options.        (line  237)
! * mno-odd-spreg:                         MIPS Options.       (line  292)
  * mno-omit-leaf-frame-pointer:           AArch64 Options.    (line   57)
! * mno-optimize-membar:                   FRV Options.        (line  249)
  * mno-opts:                              MeP Options.        (line   93)
! * mno-pack:                              FRV Options.        (line  151)
  * mno-packed-stack:                      S/390 and zSeries Options.
                                                               (line   54)
  * mno-paired:                            RS/6000 and PowerPC Options.
!                                                              (line  213)
! * mno-paired-single:                     MIPS Options.       (line  369)
  * mno-perf-ext:                          NDS32 Options.      (line   30)
  * mno-pic:                               IA-64 Options.      (line   26)
  * mno-pid:                               RX Options.         (line  117)
! * mno-plt:                               MIPS Options.       (line  218)
! * mno-popc:                              SPARC Options.      (line  251)
  * mno-popcntb:                           RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-popcntd:                           RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-postinc:                           Adapteva Epiphany Options.
!                                                              (line  109)
  * mno-postmodify:                        Adapteva Epiphany Options.
!                                                              (line  109)
  * mno-power8-fusion:                     RS/6000 and PowerPC Options.
!                                                              (line  246)
  * mno-power8-vector:                     RS/6000 and PowerPC Options.
!                                                              (line  252)
  * mno-powerpc-gfxopt:                    RS/6000 and PowerPC Options.
                                                               (line   27)
  * mno-powerpc-gpopt:                     RS/6000 and PowerPC Options.
*************** look up both forms.
*** 53576,53602 ****
  * mno-prolog-function:                   V850 Options.       (line   23)
  * mno-prologue-epilogue:                 CRIS Options.       (line   71)
  * mno-prototype:                         RS/6000 and PowerPC Options.
!                                                              (line  711)
! * mno-push-args:                         x86 Options.        (line  844)
  * mno-quad-memory:                       RS/6000 and PowerPC Options.
!                                                              (line  260)
  * mno-quad-memory-atomic:                RS/6000 and PowerPC Options.
!                                                              (line  266)
! * mno-red-zone:                          x86 Options.        (line 1145)
  * mno-register-names:                    IA-64 Options.      (line   37)
  * mno-regnames:                          RS/6000 and PowerPC Options.
!                                                              (line  817)
  * mno-relax:                             V850 Options.       (line  103)
  * mno-relax-immediate:                   MCore Options.      (line   19)
  * mno-relocatable:                       RS/6000 and PowerPC Options.
!                                                              (line  537)
  * mno-relocatable-lib:                   RS/6000 and PowerPC Options.
!                                                              (line  548)
  * mno-renesas:                           SH Options.         (line  155)
  * mno-round-nearest:                     Adapteva Epiphany Options.
                                                               (line   51)
! * mno-rtd:                               M680x0 Options.     (line  262)
! * mno-scc:                               FRV Options.        (line  146)
  * mno-sched-ar-data-spec:                IA-64 Options.      (line  135)
  * mno-sched-ar-in-data-spec:             IA-64 Options.      (line  157)
  * mno-sched-br-data-spec:                IA-64 Options.      (line  128)
--- 53149,53177 ----
  * mno-prolog-function:                   V850 Options.       (line   23)
  * mno-prologue-epilogue:                 CRIS Options.       (line   71)
  * mno-prototype:                         RS/6000 and PowerPC Options.
!                                                              (line  709)
! * mno-push-args:                         x86 Options.        (line  837)
  * mno-quad-memory:                       RS/6000 and PowerPC Options.
!                                                              (line  259)
  * mno-quad-memory-atomic:                RS/6000 and PowerPC Options.
!                                                              (line  265)
! * mno-readonly-in-sdata:                 RS/6000 and PowerPC Options.
!                                                              (line  801)
! * mno-red-zone:                          x86 Options.        (line 1167)
  * mno-register-names:                    IA-64 Options.      (line   37)
  * mno-regnames:                          RS/6000 and PowerPC Options.
!                                                              (line  819)
  * mno-relax:                             V850 Options.       (line  103)
  * mno-relax-immediate:                   MCore Options.      (line   19)
  * mno-relocatable:                       RS/6000 and PowerPC Options.
!                                                              (line  535)
  * mno-relocatable-lib:                   RS/6000 and PowerPC Options.
!                                                              (line  546)
  * mno-renesas:                           SH Options.         (line  155)
  * mno-round-nearest:                     Adapteva Epiphany Options.
                                                               (line   51)
! * mno-rtd:                               M680x0 Options.     (line  258)
! * mno-scc:                               FRV Options.        (line  180)
  * mno-sched-ar-data-spec:                IA-64 Options.      (line  135)
  * mno-sched-ar-in-data-spec:             IA-64 Options.      (line  157)
  * mno-sched-br-data-spec:                IA-64 Options.      (line  128)
*************** look up both forms.
*** 53607,53854 ****
  * mno-sched-prefer-non-control-spec-insns: IA-64 Options.    (line  178)
  * mno-sched-prefer-non-data-spec-insns:  IA-64 Options.      (line  171)
  * mno-sched-prolog:                      ARM Options.        (line   32)
! * mno-sdata <1>:                         RS/6000 and PowerPC Options.
!                                                              (line  798)
! * mno-sdata <2>:                         IA-64 Options.      (line   42)
! * mno-sdata:                             ARC Options.        (line  308)
! * mno-sep-data:                          Blackfin Options.   (line  116)
  * mno-serialize-volatile:                Xtensa Options.     (line   35)
! * mno-short:                             M680x0 Options.     (line  226)
  * mno-side-effects:                      CRIS Options.       (line   46)
  * mno-sim:                               RX Options.         (line   71)
! * mno-single-exit:                       MMIX Options.       (line   66)
  * mno-slow-bytes:                        MCore Options.      (line   35)
  * mno-small-exec:                        S/390 and zSeries Options.
!                                                              (line   80)
! * mno-smartmips:                         MIPS Options.       (line  368)
  * mno-soft-cmpsf:                        Adapteva Epiphany Options.
                                                               (line   29)
  * mno-soft-float:                        DEC Alpha Options.  (line   10)
! * mno-space-regs:                        HPPA Options.       (line   38)
  * mno-spe:                               RS/6000 and PowerPC Options.
!                                                              (line  209)
! * mno-specld-anomaly:                    Blackfin Options.   (line   56)
! * mno-split-addresses:                   MIPS Options.       (line  536)
  * mno-stack-align:                       CRIS Options.       (line   55)
! * mno-stack-bias:                        SPARC Options.      (line  337)
! * mno-std-struct-return:                 SPARC Options.      (line  103)
  * mno-strict-align <1>:                  RS/6000 and PowerPC Options.
!                                                              (line  532)
! * mno-strict-align:                      M680x0 Options.     (line  287)
  * mno-string:                            RS/6000 and PowerPC Options.
!                                                              (line  468)
  * mno-sum-in-toc:                        RS/6000 and PowerPC Options.
!                                                              (line  353)
! * mno-sym32:                             MIPS Options.       (line  433)
  * mno-target-align:                      Xtensa Options.     (line   74)
  * mno-text-section-literals:             Xtensa Options.     (line   47)
  * mno-tls-markers:                       RS/6000 and PowerPC Options.
!                                                              (line  856)
  * mno-toc:                               RS/6000 and PowerPC Options.
!                                                              (line  557)
! * mno-toplevel-symbols:                  MMIX Options.       (line   40)
  * mno-tpf-trace:                         S/390 and zSeries Options.
!                                                              (line  164)
  * mno-unaligned-access:                  ARM Options.        (line  339)
! * mno-unaligned-doubles:                 SPARC Options.      (line   74)
! * mno-uninit-const-in-rodata:            MIPS Options.       (line  506)
  * mno-update:                            RS/6000 and PowerPC Options.
!                                                              (line  479)
  * mno-upper-regs:                        RS/6000 and PowerPC Options.
!                                                              (line  289)
  * mno-upper-regs-df:                     RS/6000 and PowerPC Options.
!                                                              (line  272)
  * mno-upper-regs-sf:                     RS/6000 and PowerPC Options.
!                                                              (line  280)
! * mno-user-mode:                         SPARC Options.      (line   86)
! * mno-usermode:                          SH Options.         (line  276)
  * mno-v3push:                            NDS32 Options.      (line   36)
! * mno-v8plus:                            SPARC Options.      (line  210)
  * mno-vect-double:                       Adapteva Epiphany Options.
!                                                              (line  116)
! * mno-virt:                              MIPS Options.       (line  409)
! * mno-vis:                               SPARC Options.      (line  217)
! * mno-vis2:                              SPARC Options.      (line  223)
! * mno-vis3:                              SPARC Options.      (line  231)
! * mno-vis4:                              SPARC Options.      (line  239)
! * mno-vliw-branch:                       FRV Options.        (line  170)
  * mno-volatile-asm-stop:                 IA-64 Options.      (line   32)
! * mno-volatile-cache:                    ARC Options.        (line  322)
  * mno-vrsave:                            RS/6000 and PowerPC Options.
!                                                              (line  174)
  * mno-vsx:                               RS/6000 and PowerPC Options.
!                                                              (line  223)
  * mno-vx:                                S/390 and zSeries Options.
!                                                              (line  113)
  * mno-warn-mcu:                          MSP430 Options.     (line   35)
  * mno-warn-multiple-fast-interrupts:     RX Options.         (line  143)
  * mno-wide-bitfields:                    MCore Options.      (line   23)
! * mno-xgot <1>:                          MIPS Options.       (line  231)
! * mno-xgot:                              M680x0 Options.     (line  319)
  * mno-xl-compat:                         RS/6000 and PowerPC Options.
!                                                              (line  388)
! * mno-xpa:                               MIPS Options.       (line  414)
! * mno-zdcbranch:                         SH Options.         (line  345)
! * mno-zero-extend:                       MMIX Options.       (line   27)
  * mno-zvector:                           S/390 and zSeries Options.
!                                                              (line  124)
! * mnobitfield:                           M680x0 Options.     (line  231)
  * mnodiv:                                FT32 Options.       (line   20)
  * mnoliw:                                MN10300 Options.    (line   59)
  * mnomacsave:                            SH Options.         (line  160)
  * mnop-fun-dllimport:                    x86 Windows Options.
                                                               (line   22)
! * mnop-mcount:                           x86 Options.        (line 1073)
  * mnops:                                 Adapteva Epiphany Options.
                                                               (line   26)
! * mnorm:                                 ARC Options.        (line   74)
  * mnosetlb:                              MN10300 Options.    (line   69)
  * mnosplit-lohi:                         Adapteva Epiphany Options.
!                                                              (line  110)
! * modd-spreg:                            MIPS Options.       (line  295)
! * momit-leaf-frame-pointer <1>:          x86 Options.        (line 1037)
! * momit-leaf-frame-pointer <2>:          Blackfin Options.   (line   44)
  * momit-leaf-frame-pointer:              AArch64 Options.    (line   57)
  * mone-byte-bool:                        Darwin Options.     (line   90)
  * moptimize:                             Nvidia PTX Options. (line   17)
! * moptimize-membar:                      FRV Options.        (line  201)
! * moverride:                             AArch64 Options.    (line  169)
  * MP:                                    Preprocessor Options.
                                                               (line  239)
  * mpa-risc-1-0:                          HPPA Options.       (line   19)
  * mpa-risc-1-1:                          HPPA Options.       (line   19)
  * mpa-risc-2-0:                          HPPA Options.       (line   19)
! * mpack:                                 FRV Options.        (line  119)
  * mpacked-stack:                         S/390 and zSeries Options.
                                                               (line   54)
  * mpadstruct:                            SH Options.         (line  189)
  * mpaired:                               RS/6000 and PowerPC Options.
!                                                              (line  214)
! * mpaired-single:                        MIPS Options.       (line  372)
! * mpc32:                                 x86 Options.        (line  531)
! * mpc64:                                 x86 Options.        (line  531)
! * mpc80:                                 x86 Options.        (line  531)
! * mpclmul:                               x86 Options.        (line  629)
! * mpcrel:                                M680x0 Options.     (line  279)
! * mpcrelativeliteralloads:               AArch64 Options.    (line  177)
! * mpdebug:                               CRIS Options.       (line   35)
  * mpe:                                   RS/6000 and PowerPC Options.
!                                                              (line  408)
  * mpe-aligned-commons:                   x86 Windows Options.
                                                               (line   59)
  * mperf-ext:                             NDS32 Options.      (line   27)
! * mpic-data-is-text-relative:            ARM Options.        (line  241)
! * mpic-register:                         ARM Options.        (line  234)
  * mpid:                                  RX Options.         (line  117)
! * mpku:                                  x86 Options.        (line  655)
! * mplt:                                  MIPS Options.       (line  221)
  * mpointer-size=SIZE:                    VMS Options.        (line   20)
  * mpointers-to-nested-functions:         RS/6000 and PowerPC Options.
                                                               (line  962)
! * mpoke-function-name:                   ARM Options.        (line  247)
! * mpopc:                                 SPARC Options.      (line  254)
! * mpopcnt:                               x86 Options.        (line  640)
  * mpopcntb:                              RS/6000 and PowerPC Options.
                                                               (line   27)
  * mpopcntd:                              RS/6000 and PowerPC Options.
                                                               (line   27)
! * mportable-runtime:                     HPPA Options.       (line   64)
  * mpower8-fusion:                        RS/6000 and PowerPC Options.
!                                                              (line  247)
  * mpower8-vector:                        RS/6000 and PowerPC Options.
!                                                              (line  253)
  * mpowerpc-gfxopt:                       RS/6000 and PowerPC Options.
                                                               (line   27)
  * mpowerpc-gpopt:                        RS/6000 and PowerPC Options.
                                                               (line   27)
  * mpowerpc64:                            RS/6000 and PowerPC Options.
                                                               (line   27)
! * mprefer-avx128:                        x86 Options.        (line  721)
  * mprefer-short-insn-regs:               Adapteva Epiphany Options.
                                                               (line   13)
! * mprefergot:                            SH Options.         (line  270)
! * mpreferred-stack-boundary:             x86 Options.        (line  561)
! * mprefetchwt1:                          x86 Options.        (line  636)
! * mpretend-cmove:                        SH Options.         (line  387)
  * mprint-tune-info:                      ARM Options.        (line  375)
  * mprioritize-restricted-insns:          RS/6000 and PowerPC Options.
!                                                              (line  586)
  * mprolog-function:                      V850 Options.       (line   23)
  * mprologue-epilogue:                    CRIS Options.       (line   71)
  * mprototype:                            RS/6000 and PowerPC Options.
!                                                              (line  711)
! * mpush-args:                            x86 Options.        (line  844)
  * MQ:                                    Preprocessor Options.
!                                                              (line  265)
! * mq-class:                              ARC Options.        (line  403)
  * mquad-memory:                          RS/6000 and PowerPC Options.
!                                                              (line  260)
  * mquad-memory-atomic:                   RS/6000 and PowerPC Options.
!                                                              (line  266)
! * mr10k-cache-barrier:                   MIPS Options.       (line  686)
! * mRcq:                                  ARC Options.        (line  407)
! * mRcw:                                  ARC Options.        (line  411)
! * mrdrnd:                                x86 Options.        (line  632)
! * mrecip <1>:                            x86 Options.        (line  754)
  * mrecip:                                RS/6000 and PowerPC Options.
!                                                              (line  868)
  * mrecip-precision:                      RS/6000 and PowerPC Options.
                                                               (line  926)
- * mrecip=opt <1>:                        x86 Options.        (line  776)
  * mrecip=opt:                            RS/6000 and PowerPC Options.
!                                                              (line  881)
! * mrecord-mcount:                        x86 Options.        (line 1067)
  * mreduced-regs:                         NDS32 Options.      (line   15)
  * mregister-names:                       IA-64 Options.      (line   37)
  * mregnames:                             RS/6000 and PowerPC Options.
!                                                              (line  817)
! * mregparm:                              x86 Options.        (line  498)
! * mrelax <1>:                            V850 Options.       (line  103)
! * mrelax <2>:                            SH Options.         (line  137)
! * mrelax <3>:                            RX Options.         (line   95)
! * mrelax <4>:                            NDS32 Options.      (line   74)
! * mrelax <5>:                            MSP430 Options.     (line   58)
! * mrelax <6>:                            MN10300 Options.    (line   46)
! * mrelax <7>:                            H8/300 Options.     (line    9)
! * mrelax:                                AVR Options.        (line  185)
  * mrelax-immediate:                      MCore Options.      (line   19)
! * mrelax-pic-calls:                      MIPS Options.       (line  831)
  * mrelocatable:                          RS/6000 and PowerPC Options.
!                                                              (line  537)
  * mrelocatable-lib:                      RS/6000 and PowerPC Options.
!                                                              (line  548)
  * mrenesas:                              SH Options.         (line  152)
  * mrepeat:                               MeP Options.        (line   96)
  * mrestrict-it:                          ARM Options.        (line  369)
  * mreturn-pointer-on-d0:                 MN10300 Options.    (line   36)
  * mrh850-abi:                            V850 Options.       (line  127)
  * mrl78:                                 RL78 Options.       (line   62)
! * mrmw:                                  AVR Options.        (line  199)
! * mrtd <1>:                              x86 Function Attributes.
                                                               (line    9)
! * mrtd <2>:                              x86 Options.        (line  474)
! * mrtd:                                  M680x0 Options.     (line  240)
! * mrtm:                                  x86 Options.        (line  650)
  * mrtp:                                  VxWorks Options.    (line   11)
! * mrtsc:                                 ARC Options.        (line  249)
! * ms <1>:                                MeP Options.        (line  100)
  * ms:                                    H8/300 Options.     (line   17)
  * ms2600:                                H8/300 Options.     (line   24)
! * msafe-dma:                             SPU Options.        (line   17)
! * msafe-hints:                           SPU Options.        (line  107)
! * msahf:                                 x86 Options.        (line  734)
  * msatur:                                MeP Options.        (line  105)
  * msave-acc-in-interrupts:               RX Options.         (line  109)
  * msave-toc-indirect:                    RS/6000 and PowerPC Options.
                                                               (line  974)
! * mscc:                                  FRV Options.        (line  140)
  * msched-ar-data-spec:                   IA-64 Options.      (line  135)
  * msched-ar-in-data-spec:                IA-64 Options.      (line  157)
  * msched-br-data-spec:                   IA-64 Options.      (line  128)
  * msched-br-in-data-spec:                IA-64 Options.      (line  150)
  * msched-control-spec:                   IA-64 Options.      (line  142)
  * msched-costly-dep:                     RS/6000 and PowerPC Options.
!                                                              (line  593)
  * msched-count-spec-in-critical-path:    IA-64 Options.      (line  185)
  * msched-fp-mem-deps-zero-cost:          IA-64 Options.      (line  202)
  * msched-in-control-spec:                IA-64 Options.      (line  164)
--- 53182,53431 ----
  * mno-sched-prefer-non-control-spec-insns: IA-64 Options.    (line  178)
  * mno-sched-prefer-non-data-spec-insns:  IA-64 Options.      (line  171)
  * mno-sched-prolog:                      ARM Options.        (line   32)
! * mno-sdata:                             ARC Options.        (line  299)
! * mno-sdata <1>:                         IA-64 Options.      (line   42)
! * mno-sdata <2>:                         RS/6000 and PowerPC Options.
!                                                              (line  795)
! * mno-sep-data:                          Blackfin Options.   (line  115)
  * mno-serialize-volatile:                Xtensa Options.     (line   35)
! * mno-short:                             M680x0 Options.     (line  222)
  * mno-side-effects:                      CRIS Options.       (line   46)
  * mno-sim:                               RX Options.         (line   71)
! * mno-single-exit:                       MMIX Options.       (line   65)
  * mno-slow-bytes:                        MCore Options.      (line   35)
  * mno-small-exec:                        S/390 and zSeries Options.
!                                                              (line   79)
! * mno-smartmips:                         MIPS Options.       (line  365)
  * mno-soft-cmpsf:                        Adapteva Epiphany Options.
                                                               (line   29)
  * mno-soft-float:                        DEC Alpha Options.  (line   10)
! * mno-space-regs:                        HPPA Options.       (line   45)
  * mno-spe:                               RS/6000 and PowerPC Options.
!                                                              (line  208)
! * mno-specld-anomaly:                    Blackfin Options.   (line   55)
! * mno-split-addresses:                   MIPS Options.       (line  532)
  * mno-stack-align:                       CRIS Options.       (line   55)
! * mno-stack-bias:                        SPARC Options.      (line  334)
! * mno-std-struct-return:                 SPARC Options.      (line  102)
! * mno-strict-align:                      M680x0 Options.     (line  283)
  * mno-strict-align <1>:                  RS/6000 and PowerPC Options.
!                                                              (line  530)
  * mno-string:                            RS/6000 and PowerPC Options.
!                                                              (line  466)
  * mno-sum-in-toc:                        RS/6000 and PowerPC Options.
!                                                              (line  352)
! * mno-sym32:                             MIPS Options.       (line  430)
  * mno-target-align:                      Xtensa Options.     (line   74)
  * mno-text-section-literals:             Xtensa Options.     (line   47)
  * mno-tls-markers:                       RS/6000 and PowerPC Options.
!                                                              (line  857)
  * mno-toc:                               RS/6000 and PowerPC Options.
!                                                              (line  555)
! * mno-toplevel-symbols:                  MMIX Options.       (line   39)
  * mno-tpf-trace:                         S/390 and zSeries Options.
!                                                              (line  162)
  * mno-unaligned-access:                  ARM Options.        (line  339)
! * mno-unaligned-doubles:                 SPARC Options.      (line   73)
! * mno-uninit-const-in-rodata:            MIPS Options.       (line  502)
  * mno-update:                            RS/6000 and PowerPC Options.
!                                                              (line  477)
  * mno-upper-regs:                        RS/6000 and PowerPC Options.
!                                                              (line  288)
  * mno-upper-regs-df:                     RS/6000 and PowerPC Options.
!                                                              (line  271)
  * mno-upper-regs-sf:                     RS/6000 and PowerPC Options.
!                                                              (line  279)
! * mno-user-mode:                         SPARC Options.      (line   85)
! * mno-usermode:                          SH Options.         (line  274)
  * mno-v3push:                            NDS32 Options.      (line   36)
! * mno-v8plus:                            SPARC Options.      (line  207)
  * mno-vect-double:                       Adapteva Epiphany Options.
!                                                              (line  115)
! * mno-virt:                              MIPS Options.       (line  406)
! * mno-vis:                               SPARC Options.      (line  214)
! * mno-vis2:                              SPARC Options.      (line  220)
! * mno-vis3:                              SPARC Options.      (line  228)
! * mno-vis4:                              SPARC Options.      (line  236)
! * mno-vliw-branch:                       FRV Options.        (line  208)
  * mno-volatile-asm-stop:                 IA-64 Options.      (line   32)
! * mno-volatile-cache:                    ARC Options.        (line  313)
  * mno-vrsave:                            RS/6000 and PowerPC Options.
!                                                              (line  173)
  * mno-vsx:                               RS/6000 and PowerPC Options.
!                                                              (line  222)
  * mno-vx:                                S/390 and zSeries Options.
!                                                              (line  112)
  * mno-warn-mcu:                          MSP430 Options.     (line   35)
  * mno-warn-multiple-fast-interrupts:     RX Options.         (line  143)
  * mno-wide-bitfields:                    MCore Options.      (line   23)
! * mno-xgot:                              M680x0 Options.     (line  315)
! * mno-xgot <1>:                          MIPS Options.       (line  228)
  * mno-xl-compat:                         RS/6000 and PowerPC Options.
!                                                              (line  387)
! * mno-xpa:                               MIPS Options.       (line  411)
! * mno-zdcbranch:                         SH Options.         (line  341)
! * mno-zero-extend:                       MMIX Options.       (line   26)
  * mno-zvector:                           S/390 and zSeries Options.
!                                                              (line  123)
! * mnobitfield:                           M680x0 Options.     (line  227)
  * mnodiv:                                FT32 Options.       (line   20)
  * mnoliw:                                MN10300 Options.    (line   59)
  * mnomacsave:                            SH Options.         (line  160)
  * mnop-fun-dllimport:                    x86 Windows Options.
                                                               (line   22)
! * mnop-mcount:                           x86 Options.        (line 1066)
  * mnops:                                 Adapteva Epiphany Options.
                                                               (line   26)
! * mnorm:                                 ARC Options.        (line   69)
  * mnosetlb:                              MN10300 Options.    (line   69)
  * mnosplit-lohi:                         Adapteva Epiphany Options.
!                                                              (line  109)
! * modd-spreg:                            MIPS Options.       (line  292)
  * momit-leaf-frame-pointer:              AArch64 Options.    (line   57)
+ * momit-leaf-frame-pointer <1>:          Blackfin Options.   (line   43)
+ * momit-leaf-frame-pointer <2>:          x86 Options.        (line 1030)
  * mone-byte-bool:                        Darwin Options.     (line   90)
  * moptimize:                             Nvidia PTX Options. (line   17)
! * moptimize-membar:                      FRV Options.        (line  244)
! * moverride:                             AArch64 Options.    (line  168)
  * MP:                                    Preprocessor Options.
                                                               (line  239)
  * mpa-risc-1-0:                          HPPA Options.       (line   19)
  * mpa-risc-1-1:                          HPPA Options.       (line   19)
  * mpa-risc-2-0:                          HPPA Options.       (line   19)
! * mpack:                                 FRV Options.        (line  147)
  * mpacked-stack:                         S/390 and zSeries Options.
                                                               (line   54)
  * mpadstruct:                            SH Options.         (line  189)
  * mpaired:                               RS/6000 and PowerPC Options.
!                                                              (line  213)
! * mpaired-single:                        MIPS Options.       (line  369)
! * mpc32:                                 x86 Options.        (line  525)
! * mpc64:                                 x86 Options.        (line  525)
! * mpc80:                                 x86 Options.        (line  525)
! * mpclmul:                               x86 Options.        (line  623)
! * mpcrel:                                M680x0 Options.     (line  275)
! * mpcrelativeliteralloads:               AArch64 Options.    (line  176)
! * mpdebug:                               CRIS Options.       (line   36)
  * mpe:                                   RS/6000 and PowerPC Options.
!                                                              (line  406)
  * mpe-aligned-commons:                   x86 Windows Options.
                                                               (line   59)
  * mperf-ext:                             NDS32 Options.      (line   27)
! * mpic-data-is-text-relative:            ARM Options.        (line  240)
! * mpic-register:                         ARM Options.        (line  233)
  * mpid:                                  RX Options.         (line  117)
! * mpku:                                  x86 Options.        (line  649)
! * mplt:                                  MIPS Options.       (line  218)
  * mpointer-size=SIZE:                    VMS Options.        (line   20)
  * mpointers-to-nested-functions:         RS/6000 and PowerPC Options.
                                                               (line  962)
! * mpoke-function-name:                   ARM Options.        (line  246)
! * mpopc:                                 SPARC Options.      (line  251)
! * mpopcnt:                               x86 Options.        (line  634)
  * mpopcntb:                              RS/6000 and PowerPC Options.
                                                               (line   27)
  * mpopcntd:                              RS/6000 and PowerPC Options.
                                                               (line   27)
! * mportable-runtime:                     HPPA Options.       (line   71)
  * mpower8-fusion:                        RS/6000 and PowerPC Options.
!                                                              (line  246)
  * mpower8-vector:                        RS/6000 and PowerPC Options.
!                                                              (line  252)
  * mpowerpc-gfxopt:                       RS/6000 and PowerPC Options.
                                                               (line   27)
  * mpowerpc-gpopt:                        RS/6000 and PowerPC Options.
                                                               (line   27)
  * mpowerpc64:                            RS/6000 and PowerPC Options.
                                                               (line   27)
! * mprefer-avx128:                        x86 Options.        (line  714)
  * mprefer-short-insn-regs:               Adapteva Epiphany Options.
                                                               (line   13)
! * mprefergot:                            SH Options.         (line  268)
! * mpreferred-stack-boundary:             x86 Options.        (line  555)
! * mprefetchwt1:                          x86 Options.        (line  630)
! * mpretend-cmove:                        SH Options.         (line  383)
  * mprint-tune-info:                      ARM Options.        (line  375)
  * mprioritize-restricted-insns:          RS/6000 and PowerPC Options.
!                                                              (line  584)
  * mprolog-function:                      V850 Options.       (line   23)
  * mprologue-epilogue:                    CRIS Options.       (line   71)
  * mprototype:                            RS/6000 and PowerPC Options.
!                                                              (line  709)
! * mpush-args:                            x86 Options.        (line  837)
  * MQ:                                    Preprocessor Options.
!                                                              (line  266)
! * mq-class:                              ARC Options.        (line  393)
  * mquad-memory:                          RS/6000 and PowerPC Options.
!                                                              (line  259)
  * mquad-memory-atomic:                   RS/6000 and PowerPC Options.
!                                                              (line  265)
! * mr10k-cache-barrier:                   MIPS Options.       (line  674)
! * mRcq:                                  ARC Options.        (line  397)
! * mRcw:                                  ARC Options.        (line  401)
! * mrdrnd:                                x86 Options.        (line  626)
! * mreadonly-in-sdata:                    RS/6000 and PowerPC Options.
!                                                              (line  801)
  * mrecip:                                RS/6000 and PowerPC Options.
!                                                              (line  869)
! * mrecip <1>:                            x86 Options.        (line  747)
  * mrecip-precision:                      RS/6000 and PowerPC Options.
                                                               (line  926)
  * mrecip=opt:                            RS/6000 and PowerPC Options.
!                                                              (line  882)
! * mrecip=opt <1>:                        x86 Options.        (line  769)
! * mrecord-mcount:                        x86 Options.        (line 1060)
  * mreduced-regs:                         NDS32 Options.      (line   15)
  * mregister-names:                       IA-64 Options.      (line   37)
  * mregnames:                             RS/6000 and PowerPC Options.
!                                                              (line  819)
! * mregparm:                              x86 Options.        (line  492)
! * mrelax:                                AVR Options.        (line  187)
! * mrelax <1>:                            H8/300 Options.     (line    9)
! * mrelax <2>:                            MN10300 Options.    (line   46)
! * mrelax <3>:                            MSP430 Options.     (line   58)
! * mrelax <4>:                            NDS32 Options.      (line   72)
! * mrelax <5>:                            RX Options.         (line   95)
! * mrelax <6>:                            SH Options.         (line  137)
! * mrelax <7>:                            V850 Options.       (line  103)
  * mrelax-immediate:                      MCore Options.      (line   19)
! * mrelax-pic-calls:                      MIPS Options.       (line  819)
  * mrelocatable:                          RS/6000 and PowerPC Options.
!                                                              (line  535)
  * mrelocatable-lib:                      RS/6000 and PowerPC Options.
!                                                              (line  546)
  * mrenesas:                              SH Options.         (line  152)
  * mrepeat:                               MeP Options.        (line   96)
  * mrestrict-it:                          ARM Options.        (line  369)
  * mreturn-pointer-on-d0:                 MN10300 Options.    (line   36)
  * mrh850-abi:                            V850 Options.       (line  127)
  * mrl78:                                 RL78 Options.       (line   62)
! * mrmw:                                  AVR Options.        (line  201)
! * mrtd:                                  M680x0 Options.     (line  236)
! * mrtd <1>:                              x86 Options.        (line  468)
! * mrtd <2>:                              x86 Function Attributes.
                                                               (line    9)
! * mrtm:                                  x86 Options.        (line  644)
  * mrtp:                                  VxWorks Options.    (line   11)
! * mrtsc:                                 ARC Options.        (line  241)
  * ms:                                    H8/300 Options.     (line   17)
+ * ms <1>:                                MeP Options.        (line  100)
  * ms2600:                                H8/300 Options.     (line   24)
! * msafe-dma:                             SPU Options.        (line   18)
! * msafe-hints:                           SPU Options.        (line  112)
! * msahf:                                 x86 Options.        (line  727)
  * msatur:                                MeP Options.        (line  105)
  * msave-acc-in-interrupts:               RX Options.         (line  109)
  * msave-toc-indirect:                    RS/6000 and PowerPC Options.
                                                               (line  974)
! * mscc:                                  FRV Options.        (line  173)
  * msched-ar-data-spec:                   IA-64 Options.      (line  135)
  * msched-ar-in-data-spec:                IA-64 Options.      (line  157)
  * msched-br-data-spec:                   IA-64 Options.      (line  128)
  * msched-br-in-data-spec:                IA-64 Options.      (line  150)
  * msched-control-spec:                   IA-64 Options.      (line  142)
  * msched-costly-dep:                     RS/6000 and PowerPC Options.
!                                                              (line  591)
  * msched-count-spec-in-critical-path:    IA-64 Options.      (line  185)
  * msched-fp-mem-deps-zero-cost:          IA-64 Options.      (line  202)
  * msched-in-control-spec:                IA-64 Options.      (line  164)
*************** look up both forms.
*** 53857,53929 ****
  * msched-prefer-non-control-spec-insns:  IA-64 Options.      (line  178)
  * msched-prefer-non-data-spec-insns:     IA-64 Options.      (line  171)
  * msched-spec-ldc:                       IA-64 Options.      (line  191)
  * msched-stop-bits-after-every-cycle:    IA-64 Options.      (line  198)
! * mschedule:                             HPPA Options.       (line   71)
  * mscore5:                               Score Options.      (line   25)
  * mscore5u:                              Score Options.      (line   28)
  * mscore7:                               Score Options.      (line   31)
! * mscore7d:                              Score Options.      (line   34)
  * msda:                                  V850 Options.       (line   40)
- * msdata <1>:                            RS/6000 and PowerPC Options.
-                                                              (line  785)
  * msdata:                                IA-64 Options.      (line   42)
  * msdata=all:                            C6X Options.        (line   30)
  * msdata=data:                           RS/6000 and PowerPC Options.
!                                                              (line  790)
! * msdata=default <1>:                    RS/6000 and PowerPC Options.
!                                                              (line  785)
  * msdata=default:                        C6X Options.        (line   22)
  * msdata=eabi:                           RS/6000 and PowerPC Options.
!                                                              (line  765)
! * msdata=none <1>:                       RS/6000 and PowerPC Options.
!                                                              (line  798)
! * msdata=none <2>:                       M32R/D Options.     (line   40)
  * msdata=none:                           C6X Options.        (line   35)
  * msdata=sdata:                          M32R/D Options.     (line   49)
  * msdata=sysv:                           RS/6000 and PowerPC Options.
!                                                              (line  776)
  * msdata=use:                            M32R/D Options.     (line   53)
  * msdram <1>:                            MeP Options.        (line  110)
- * msdram:                                Blackfin Options.   (line  172)
  * msecure-plt:                           RS/6000 and PowerPC Options.
!                                                              (line  184)
  * msel-sched-dont-check-control-spec:    IA-64 Options.      (line  207)
! * msep-data:                             Blackfin Options.   (line  110)
  * mserialize-volatile:                   Xtensa Options.     (line   35)
  * msetlb:                                MN10300 Options.    (line   64)
! * msha:                                  x86 Options.        (line  627)
! * mshared-library-id:                    Blackfin Options.   (line  103)
! * mshort:                                M680x0 Options.     (line  220)
  * msign-extend-enabled:                  LM32 Options.       (line   18)
! * msilicon-errata:                       MSP430 Options.     (line  103)
! * msilicon-errata-warn:                  MSP430 Options.     (line  107)
! * msim <1>:                              Xstormy16 Options.  (line    9)
! * msim <2>:                              Visium Options.     (line   13)
! * msim <3>:                              RX Options.         (line   71)
! * msim <4>:                              RS/6000 and PowerPC Options.
!                                                              (line  721)
! * msim <5>:                              RL78 Options.       (line    7)
  * msim <6>:                              MSP430 Options.     (line   47)
! * msim <7>:                              MeP Options.        (line  114)
! * msim <8>:                              M32C Options.       (line   13)
! * msim <9>:                              FT32 Options.       (line    9)
! * msim <10>:                             CR16 Options.       (line   18)
! * msim <11>:                             C6X Options.        (line   19)
! * msim:                                  Blackfin Options.   (line   37)
! * msimd:                                 ARC Options.        (line   87)
  * msimnovec:                             MeP Options.        (line  117)
  * msimple-fpu:                           RS/6000 and PowerPC Options.
!                                                              (line  441)
! * msingle-exit:                          MMIX Options.       (line   66)
  * msingle-float <1>:                     RS/6000 and PowerPC Options.
!                                                              (line  437)
! * msingle-float:                         MIPS Options.       (line  286)
  * msingle-pic-base <1>:                  RS/6000 and PowerPC Options.
!                                                              (line  580)
! * msingle-pic-base:                      ARM Options.        (line  228)
! * msio:                                  HPPA Options.       (line   98)
! * msize-level:                           ARC Options.        (line  415)
! * mskip-rax-setup:                       x86 Options.        (line 1080)
  * mslow-bytes:                           MCore Options.      (line   35)
  * mslow-flash-data:                      ARM Options.        (line  357)
  * msmall:                                MSP430 Options.     (line   55)
--- 53434,53507 ----
  * msched-prefer-non-control-spec-insns:  IA-64 Options.      (line  178)
  * msched-prefer-non-data-spec-insns:     IA-64 Options.      (line  171)
  * msched-spec-ldc:                       IA-64 Options.      (line  191)
+ * msched-spec-ldc <1>:                   IA-64 Options.      (line  194)
  * msched-stop-bits-after-every-cycle:    IA-64 Options.      (line  198)
! * mschedule:                             HPPA Options.       (line   78)
  * mscore5:                               Score Options.      (line   25)
  * mscore5u:                              Score Options.      (line   28)
  * mscore7:                               Score Options.      (line   31)
! * mscore7d:                              Score Options.      (line   35)
  * msda:                                  V850 Options.       (line   40)
  * msdata:                                IA-64 Options.      (line   42)
+ * msdata <1>:                            RS/6000 and PowerPC Options.
+                                                              (line  782)
  * msdata=all:                            C6X Options.        (line   30)
  * msdata=data:                           RS/6000 and PowerPC Options.
!                                                              (line  787)
  * msdata=default:                        C6X Options.        (line   22)
+ * msdata=default <1>:                    RS/6000 and PowerPC Options.
+                                                              (line  782)
  * msdata=eabi:                           RS/6000 and PowerPC Options.
!                                                              (line  763)
  * msdata=none:                           C6X Options.        (line   35)
+ * msdata=none <1>:                       M32R/D Options.     (line   40)
+ * msdata=none <2>:                       RS/6000 and PowerPC Options.
+                                                              (line  795)
  * msdata=sdata:                          M32R/D Options.     (line   49)
  * msdata=sysv:                           RS/6000 and PowerPC Options.
!                                                              (line  773)
  * msdata=use:                            M32R/D Options.     (line   53)
+ * msdram:                                Blackfin Options.   (line  171)
  * msdram <1>:                            MeP Options.        (line  110)
  * msecure-plt:                           RS/6000 and PowerPC Options.
!                                                              (line  183)
  * msel-sched-dont-check-control-spec:    IA-64 Options.      (line  207)
! * msep-data:                             Blackfin Options.   (line  109)
  * mserialize-volatile:                   Xtensa Options.     (line   35)
  * msetlb:                                MN10300 Options.    (line   64)
! * msha:                                  x86 Options.        (line  621)
! * mshared-library-id:                    Blackfin Options.   (line  102)
! * mshort:                                M680x0 Options.     (line  216)
  * msign-extend-enabled:                  LM32 Options.       (line   18)
! * msilicon-errata:                       MSP430 Options.     (line  102)
! * msilicon-errata-warn:                  MSP430 Options.     (line  106)
! * msim:                                  Blackfin Options.   (line   36)
! * msim <1>:                              C6X Options.        (line   19)
! * msim <2>:                              CR16 Options.       (line   18)
! * msim <3>:                              FT32 Options.       (line    9)
! * msim <4>:                              M32C Options.       (line   13)
! * msim <5>:                              MeP Options.        (line  114)
  * msim <6>:                              MSP430 Options.     (line   47)
! * msim <7>:                              RL78 Options.       (line    7)
! * msim <8>:                              RS/6000 and PowerPC Options.
!                                                              (line  719)
! * msim <9>:                              RX Options.         (line   71)
! * msim <10>:                             Visium Options.     (line   13)
! * msim <11>:                             Xstormy16 Options.  (line    9)
! * msimd:                                 ARC Options.        (line   82)
  * msimnovec:                             MeP Options.        (line  117)
  * msimple-fpu:                           RS/6000 and PowerPC Options.
!                                                              (line  439)
! * msingle-exit:                          MMIX Options.       (line   65)
! * msingle-float:                         MIPS Options.       (line  283)
  * msingle-float <1>:                     RS/6000 and PowerPC Options.
!                                                              (line  435)
! * msingle-pic-base:                      ARM Options.        (line  227)
  * msingle-pic-base <1>:                  RS/6000 and PowerPC Options.
!                                                              (line  578)
! * msio:                                  HPPA Options.       (line  105)
! * msize-level:                           ARC Options.        (line  405)
! * mskip-rax-setup:                       x86 Options.        (line 1073)
  * mslow-bytes:                           MCore Options.      (line   35)
  * mslow-flash-data:                      ARM Options.        (line  357)
  * msmall:                                MSP430 Options.     (line   55)
*************** look up both forms.
*** 53931,54101 ****
  * msmall-data-limit:                     RX Options.         (line   47)
  * msmall-divides:                        MicroBlaze Options. (line   39)
  * msmall-exec:                           S/390 and zSeries Options.
!                                                              (line   80)
! * msmall-mem:                            SPU Options.        (line   35)
  * msmall-model:                          FR30 Options.       (line    9)
  * msmall-text:                           DEC Alpha Options.  (line  205)
  * msmall16:                              Adapteva Epiphany Options.
!                                                              (line   67)
! * msmallc:                               Nios II Options.    (line  291)
! * msmartmips:                            MIPS Options.       (line  368)
! * msoft-float <1>:                       x86 Options.        (line  373)
! * msoft-float <2>:                       Visium Options.     (line   24)
! * msoft-float <3>:                       V850 Options.       (line  113)
! * msoft-float <4>:                       SPARC Options.      (line   40)
! * msoft-float <5>:                       S/390 and zSeries Options.
!                                                              (line   11)
! * msoft-float <6>:                       RS/6000 and PowerPC Options.
!                                                              (line  431)
  * msoft-float <7>:                       PDP-11 Options.     (line   13)
! * msoft-float <8>:                       MIPS Options.       (line  272)
! * msoft-float <9>:                       MicroBlaze Options. (line    7)
! * msoft-float <10>:                      M680x0 Options.     (line  203)
! * msoft-float <11>:                      HPPA Options.       (line   84)
! * msoft-float <12>:                      FRV Options.        (line   22)
! * msoft-float <13>:                      DEC Alpha Options.  (line   10)
! * msoft-float:                           ARC Options.        (line   91)
! * msoft-quad-float:                      SPARC Options.      (line   60)
! * msp8:                                  AVR Options.        (line  203)
  * mspace:                                V850 Options.       (line   30)
  * mspe:                                  RS/6000 and PowerPC Options.
!                                                              (line  209)
! * mspecld-anomaly:                       Blackfin Options.   (line   51)
! * mspfp:                                 ARC Options.        (line   78)
! * mspfp-compact:                         ARC Options.        (line   79)
! * mspfp-fast:                            ARC Options.        (line   83)
! * mspfp_compact:                         ARC Options.        (line  516)
! * mspfp_fast:                            ARC Options.        (line  519)
! * msplit-addresses:                      MIPS Options.       (line  536)
  * msplit-vecmove-early:                  Adapteva Epiphany Options.
!                                                              (line  127)
! * msse:                                  x86 Options.        (line  608)
! * msse2:                                 x86 Options.        (line  609)
! * msse2avx:                              x86 Options.        (line 1055)
! * msse3:                                 x86 Options.        (line  610)
! * msse4:                                 x86 Options.        (line  612)
! * msse4.1:                               x86 Options.        (line  614)
! * msse4.2:                               x86 Options.        (line  615)
! * msse4a:                                x86 Options.        (line  613)
! * msseregparm:                           x86 Options.        (line  509)
! * mssse3:                                x86 Options.        (line  611)
  * mstack-align:                          CRIS Options.       (line   55)
! * mstack-bias:                           SPARC Options.      (line  337)
! * mstack-check-l1:                       Blackfin Options.   (line   77)
  * mstack-guard:                          S/390 and zSeries Options.
!                                                              (line  189)
  * mstack-increment:                      MCore Options.      (line   50)
  * mstack-offset:                         Adapteva Epiphany Options.
                                                               (line   37)
! * mstack-protector-guard=GUARD:          x86 Options.        (line 1104)
  * mstack-size:                           S/390 and zSeries Options.
!                                                              (line  189)
! * mstackrealign:                         x86 Options.        (line  552)
! * mstd-struct-return:                    SPARC Options.      (line  103)
! * mstdmain:                              SPU Options.        (line   40)
! * mstrict-align <1>:                     RS/6000 and PowerPC Options.
!                                                              (line  532)
! * mstrict-align <2>:                     M680x0 Options.     (line  287)
  * mstrict-align:                         AArch64 Options.    (line   52)
! * mstrict-X:                             AVR Options.        (line  216)
  * mstring:                               RS/6000 and PowerPC Options.
!                                                              (line  468)
! * mstringop-strategy=ALG:                x86 Options.        (line 1003)
! * mstructure-size-boundary:              ARM Options.        (line  185)
  * msv-mode:                              Visium Options.     (line   52)
  * msvr4-struct-return:                   RS/6000 and PowerPC Options.
!                                                              (line  673)
! * mswap:                                 ARC Options.        (line   98)
! * mswape:                                ARC Options.        (line  254)
! * msym32:                                MIPS Options.       (line  433)
! * msynci:                                MIPS Options.       (line  817)
! * msys-crt0:                             Nios II Options.    (line  295)
! * msys-lib:                              Nios II Options.    (line  299)
  * MT:                                    Preprocessor Options.
                                                               (line  251)
  * mtarget-align:                         Xtensa Options.     (line   74)
! * mtas:                                  SH Options.         (line  261)
! * mtbm:                                  x86 Options.        (line  651)
  * mtda:                                  V850 Options.       (line   34)
! * mtelephony:                            ARC Options.        (line  259)
  * mtext-section-literals:                Xtensa Options.     (line   47)
  * mtf:                                   MeP Options.        (line  121)
  * mthread:                               x86 Windows Options.
                                                               (line   26)
! * mthreads:                              x86 Options.        (line  859)
! * mthumb:                                ARM Options.        (line  269)
  * mthumb-interwork:                      ARM Options.        (line   24)
! * mtiny-stack:                           AVR Options.        (line  230)
  * mtiny=:                                MeP Options.        (line  125)
! * mtls:                                  FRV Options.        (line   75)
! * mTLS:                                  FRV Options.        (line   72)
! * mtls-dialect <1>:                      x86 Options.        (line  837)
  * mtls-dialect:                          ARM Options.        (line  315)
  * mtls-dialect=desc:                     AArch64 Options.    (line   61)
  * mtls-dialect=traditional:              AArch64 Options.    (line   65)
! * mtls-direct-seg-refs:                  x86 Options.        (line 1045)
  * mtls-markers:                          RS/6000 and PowerPC Options.
!                                                              (line  856)
! * mtls-size <1>:                         IA-64 Options.      (line  112)
  * mtls-size:                             AArch64 Options.    (line   69)
  * mtoc:                                  RS/6000 and PowerPC Options.
!                                                              (line  557)
! * mtomcat-stats:                         FRV Options.        (line  209)
! * mtoplevel-symbols:                     MMIX Options.       (line   40)
  * mtp:                                   ARM Options.        (line  307)
  * mtpcs-frame:                           ARM Options.        (line  280)
  * mtpcs-leaf-frame:                      ARM Options.        (line  286)
  * mtpf-trace:                            S/390 and zSeries Options.
!                                                              (line  164)
  * mtrap-precision:                       DEC Alpha Options.  (line  109)
! * mtune <1>:                             x86 Options.        (line  253)
! * mtune <2>:                             Visium Options.     (line   47)
! * mtune <3>:                             SPARC Options.      (line  195)
! * mtune <4>:                             S/390 and zSeries Options.
!                                                              (line  157)
! * mtune <5>:                             RS/6000 and PowerPC Options.
!                                                              (line  114)
! * mtune <6>:                             MN10300 Options.    (line   30)
! * mtune <7>:                             MIPS Options.       (line   65)
! * mtune <8>:                             M680x0 Options.     (line   70)
! * mtune <9>:                             IA-64 Options.      (line  116)
! * mtune <10>:                            DEC Alpha Options.  (line  259)
! * mtune <11>:                            CRIS Options.       (line   16)
! * mtune <12>:                            ARM Options.        (line   89)
! * mtune <13>:                            ARC Options.        (line  437)
! * mtune:                                 AArch64 Options.    (line  123)
! * mtune-ctrl=FEATURE-LIST:               x86 Options.        (line  687)
! * mucb-mcount:                           ARC Options.        (line  313)
  * muclibc:                               GNU/Linux Options.  (line   14)
  * muls:                                  Score Options.      (line   18)
! * multcost:                              ARC Options.        (line  527)
! * multcost=NUMBER:                       SH Options.         (line  284)
! * multi_module:                          Darwin Options.     (line  196)
! * multilib-library-pic:                  FRV Options.        (line   89)
  * multiply-enabled:                      LM32 Options.       (line   15)
  * multiply_defined:                      Darwin Options.     (line  196)
  * multiply_defined_unused:               Darwin Options.     (line  196)
! * munalign-prob-threshold:               ARC Options.        (line  466)
  * munaligned-access:                     ARM Options.        (line  339)
! * munaligned-doubles:                    SPARC Options.      (line   74)
  * municode:                              x86 Windows Options.
                                                               (line   30)
! * muninit-const-in-rodata:               MIPS Options.       (line  506)
  * munix:                                 VAX Options.        (line    9)
  * munix-asm:                             PDP-11 Options.     (line   68)
! * munsafe-dma:                           SPU Options.        (line   17)
  * mupdate:                               RS/6000 and PowerPC Options.
!                                                              (line  479)
  * mupper-regs:                           RS/6000 and PowerPC Options.
!                                                              (line  289)
  * mupper-regs-df:                        RS/6000 and PowerPC Options.
!                                                              (line  272)
  * mupper-regs-sf:                        RS/6000 and PowerPC Options.
!                                                              (line  280)
  * muser-enabled:                         LM32 Options.       (line   21)
  * muser-mode <1>:                        Visium Options.     (line   57)
! * muser-mode:                            SPARC Options.      (line   86)
! * musermode:                             SH Options.         (line  276)
  * mv3push:                               NDS32 Options.      (line   33)
  * mv850:                                 V850 Options.       (line   49)
  * mv850e:                                V850 Options.       (line   79)
--- 53509,53680 ----
  * msmall-data-limit:                     RX Options.         (line   47)
  * msmall-divides:                        MicroBlaze Options. (line   39)
  * msmall-exec:                           S/390 and zSeries Options.
!                                                              (line   79)
! * msmall-mem:                            SPU Options.        (line   38)
  * msmall-model:                          FR30 Options.       (line    9)
  * msmall-text:                           DEC Alpha Options.  (line  205)
  * msmall16:                              Adapteva Epiphany Options.
!                                                              (line   66)
! * msmallc:                               Nios II Options.    (line  286)
! * msmartmips:                            MIPS Options.       (line  365)
! * msoft-float:                           ARC Options.        (line   86)
! * msoft-float <1>:                       DEC Alpha Options.  (line   10)
! * msoft-float <2>:                       FRV Options.        (line   27)
! * msoft-float <3>:                       HPPA Options.       (line   91)
! * msoft-float <4>:                       M680x0 Options.     (line  200)
! * msoft-float <5>:                       MicroBlaze Options. (line    7)
! * msoft-float <6>:                       MIPS Options.       (line  269)
  * msoft-float <7>:                       PDP-11 Options.     (line   13)
! * msoft-float <8>:                       RS/6000 and PowerPC Options.
!                                                              (line  429)
! * msoft-float <9>:                       S/390 and zSeries Options.
!                                                              (line   11)
! * msoft-float <10>:                      SPARC Options.      (line   39)
! * msoft-float <11>:                      V850 Options.       (line  113)
! * msoft-float <12>:                      Visium Options.     (line   24)
! * msoft-float <13>:                      x86 Options.        (line  367)
! * msoft-quad-float:                      SPARC Options.      (line   59)
! * msp8:                                  AVR Options.        (line  205)
  * mspace:                                V850 Options.       (line   30)
  * mspe:                                  RS/6000 and PowerPC Options.
!                                                              (line  208)
! * mspecld-anomaly:                       Blackfin Options.   (line   50)
! * mspfp:                                 ARC Options.        (line   73)
! * mspfp-compact:                         ARC Options.        (line   74)
! * mspfp-fast:                            ARC Options.        (line   78)
! * mspfp_compact:                         ARC Options.        (line  504)
! * mspfp_fast:                            ARC Options.        (line  507)
! * msplit-addresses:                      MIPS Options.       (line  532)
  * msplit-vecmove-early:                  Adapteva Epiphany Options.
!                                                              (line  126)
! * msse:                                  x86 Options.        (line  602)
! * msse2:                                 x86 Options.        (line  603)
! * msse2avx:                              x86 Options.        (line 1048)
! * msse3:                                 x86 Options.        (line  604)
! * msse4:                                 x86 Options.        (line  606)
! * msse4.1:                               x86 Options.        (line  608)
! * msse4.2:                               x86 Options.        (line  609)
! * msse4a:                                x86 Options.        (line  607)
! * msseregparm:                           x86 Options.        (line  503)
! * mssse3:                                x86 Options.        (line  605)
  * mstack-align:                          CRIS Options.       (line   55)
! * mstack-bias:                           SPARC Options.      (line  334)
! * mstack-check-l1:                       Blackfin Options.   (line   76)
  * mstack-guard:                          S/390 and zSeries Options.
!                                                              (line  187)
  * mstack-increment:                      MCore Options.      (line   50)
  * mstack-offset:                         Adapteva Epiphany Options.
                                                               (line   37)
! * mstack-protector-guard=GUARD:          x86 Options.        (line 1097)
  * mstack-size:                           S/390 and zSeries Options.
!                                                              (line  187)
! * mstackrealign:                         x86 Options.        (line  546)
! * mstd-struct-return:                    SPARC Options.      (line  102)
! * mstdmain:                              SPU Options.        (line   44)
  * mstrict-align:                         AArch64 Options.    (line   52)
! * mstrict-align <1>:                     M680x0 Options.     (line  283)
! * mstrict-align <2>:                     RS/6000 and PowerPC Options.
!                                                              (line  530)
! * mstrict-X:                             AVR Options.        (line  218)
  * mstring:                               RS/6000 and PowerPC Options.
!                                                              (line  466)
! * mstringop-strategy=ALG:                x86 Options.        (line  996)
! * mstructure-size-boundary:              ARM Options.        (line  184)
  * msv-mode:                              Visium Options.     (line   52)
  * msvr4-struct-return:                   RS/6000 and PowerPC Options.
!                                                              (line  671)
! * mswap:                                 ARC Options.        (line   93)
! * mswape:                                ARC Options.        (line  246)
! * msym32:                                MIPS Options.       (line  430)
! * msynci:                                MIPS Options.       (line  805)
! * msys-crt0:                             Nios II Options.    (line  290)
! * msys-lib:                              Nios II Options.    (line  294)
  * MT:                                    Preprocessor Options.
                                                               (line  251)
  * mtarget-align:                         Xtensa Options.     (line   74)
! * mtas:                                  SH Options.         (line  259)
! * mtbm:                                  x86 Options.        (line  645)
  * mtda:                                  V850 Options.       (line   34)
! * mtelephony:                            ARC Options.        (line  251)
  * mtext-section-literals:                Xtensa Options.     (line   47)
  * mtf:                                   MeP Options.        (line  121)
  * mthread:                               x86 Windows Options.
                                                               (line   26)
! * mthreads:                              x86 Options.        (line  852)
! * mthumb:                                ARM Options.        (line  268)
  * mthumb-interwork:                      ARM Options.        (line   24)
! * mtiny-stack:                           AVR Options.        (line  232)
  * mtiny=:                                MeP Options.        (line  125)
! * mTLS:                                  FRV Options.        (line   90)
! * mtls:                                  FRV Options.        (line   94)
  * mtls-dialect:                          ARM Options.        (line  315)
+ * mtls-dialect <1>:                      x86 Options.        (line  830)
  * mtls-dialect=desc:                     AArch64 Options.    (line   61)
  * mtls-dialect=traditional:              AArch64 Options.    (line   65)
! * mtls-direct-seg-refs:                  x86 Options.        (line 1038)
  * mtls-markers:                          RS/6000 and PowerPC Options.
!                                                              (line  857)
  * mtls-size:                             AArch64 Options.    (line   69)
+ * mtls-size <1>:                         IA-64 Options.      (line  112)
  * mtoc:                                  RS/6000 and PowerPC Options.
!                                                              (line  555)
! * mtomcat-stats:                         FRV Options.        (line  254)
! * mtoplevel-symbols:                     MMIX Options.       (line   39)
  * mtp:                                   ARM Options.        (line  307)
  * mtpcs-frame:                           ARM Options.        (line  280)
  * mtpcs-leaf-frame:                      ARM Options.        (line  286)
  * mtpf-trace:                            S/390 and zSeries Options.
!                                                              (line  162)
  * mtrap-precision:                       DEC Alpha Options.  (line  109)
! * mtune:                                 AArch64 Options.    (line  122)
! * mtune <1>:                             ARC Options.        (line  426)
! * mtune <2>:                             ARC Options.        (line  510)
! * mtune <3>:                             ARM Options.        (line   89)
! * mtune <4>:                             CRIS Options.       (line   17)
! * mtune <5>:                             DEC Alpha Options.  (line  259)
! * mtune <6>:                             IA-64 Options.      (line  116)
! * mtune <7>:                             M680x0 Options.     (line   68)
! * mtune <8>:                             MIPS Options.       (line   65)
! * mtune <9>:                             MN10300 Options.    (line   30)
! * mtune <10>:                            RS/6000 and PowerPC Options.
!                                                              (line  113)
! * mtune <11>:                            S/390 and zSeries Options.
!                                                              (line  155)
! * mtune <12>:                            SPARC Options.      (line  193)
! * mtune <13>:                            Visium Options.     (line   47)
! * mtune <14>:                            x86 Options.        (line  248)
! * mtune-ctrl=FEATURE-LIST:               x86 Options.        (line  681)
! * mucb-mcount:                           ARC Options.        (line  304)
  * muclibc:                               GNU/Linux Options.  (line   14)
  * muls:                                  Score Options.      (line   18)
! * multcost:                              ARC Options.        (line  515)
! * multcost=NUMBER:                       SH Options.         (line  281)
! * multilib-library-pic:                  FRV Options.        (line  110)
  * multiply-enabled:                      LM32 Options.       (line   15)
  * multiply_defined:                      Darwin Options.     (line  196)
  * multiply_defined_unused:               Darwin Options.     (line  196)
! * multi_module:                          Darwin Options.     (line  196)
! * munalign-prob-threshold:               ARC Options.        (line  454)
  * munaligned-access:                     ARM Options.        (line  339)
! * munaligned-doubles:                    SPARC Options.      (line   73)
  * municode:                              x86 Windows Options.
                                                               (line   30)
! * muninit-const-in-rodata:               MIPS Options.       (line  502)
  * munix:                                 VAX Options.        (line    9)
  * munix-asm:                             PDP-11 Options.     (line   68)
! * munsafe-dma:                           SPU Options.        (line   18)
  * mupdate:                               RS/6000 and PowerPC Options.
!                                                              (line  477)
  * mupper-regs:                           RS/6000 and PowerPC Options.
!                                                              (line  288)
  * mupper-regs-df:                        RS/6000 and PowerPC Options.
!                                                              (line  271)
  * mupper-regs-sf:                        RS/6000 and PowerPC Options.
!                                                              (line  279)
  * muser-enabled:                         LM32 Options.       (line   21)
+ * muser-mode:                            SPARC Options.      (line   85)
  * muser-mode <1>:                        Visium Options.     (line   57)
! * musermode:                             SH Options.         (line  274)
  * mv3push:                               NDS32 Options.      (line   33)
  * mv850:                                 V850 Options.       (line   49)
  * mv850e:                                V850 Options.       (line   79)
*************** look up both forms.
*** 54105,54140 ****
  * mv850e2v4:                             V850 Options.       (line   57)
  * mv850e3v5:                             V850 Options.       (line   52)
  * mv850es:                               V850 Options.       (line   75)
! * mv8plus:                               SPARC Options.      (line  210)
! * mveclibabi <1>:                        x86 Options.        (line  805)
  * mveclibabi:                            RS/6000 and PowerPC Options.
                                                               (line  935)
! * mvect8-ret-in-mem:                     x86 Options.        (line  519)
! * mvirt:                                 MIPS Options.       (line  409)
! * mvis:                                  SPARC Options.      (line  217)
! * mvis2:                                 SPARC Options.      (line  223)
! * mvis3:                                 SPARC Options.      (line  231)
! * mvis4:                                 SPARC Options.      (line  239)
! * mvliw-branch:                          FRV Options.        (line  164)
  * mvms-return-codes:                     VMS Options.        (line    9)
  * mvolatile-asm-stop:                    IA-64 Options.      (line   32)
! * mvolatile-cache:                       ARC Options.        (line  318)
! * mvr4130-align:                         MIPS Options.       (line  806)
  * mvrsave:                               RS/6000 and PowerPC Options.
!                                                              (line  174)
  * mvsx:                                  RS/6000 and PowerPC Options.
!                                                              (line  223)
  * mvx:                                   S/390 and zSeries Options.
!                                                              (line  113)
  * mvxworks:                              RS/6000 and PowerPC Options.
!                                                              (line  742)
! * mvzeroupper:                           x86 Options.        (line  715)
  * mwarn-cell-microcode:                  RS/6000 and PowerPC Options.
!                                                              (line  180)
  * mwarn-dynamicstack:                    S/390 and zSeries Options.
!                                                              (line  183)
  * mwarn-framesize:                       S/390 and zSeries Options.
!                                                              (line  175)
  * mwarn-mcu:                             MSP430 Options.     (line   35)
  * mwarn-multiple-fast-interrupts:        RX Options.         (line  143)
  * mwarn-reloc:                           SPU Options.        (line   10)
--- 53684,53719 ----
  * mv850e2v4:                             V850 Options.       (line   57)
  * mv850e3v5:                             V850 Options.       (line   52)
  * mv850es:                               V850 Options.       (line   75)
! * mv8plus:                               SPARC Options.      (line  207)
  * mveclibabi:                            RS/6000 and PowerPC Options.
                                                               (line  935)
! * mveclibabi <1>:                        x86 Options.        (line  798)
! * mvect8-ret-in-mem:                     x86 Options.        (line  513)
! * mvirt:                                 MIPS Options.       (line  406)
! * mvis:                                  SPARC Options.      (line  214)
! * mvis2:                                 SPARC Options.      (line  220)
! * mvis3:                                 SPARC Options.      (line  228)
! * mvis4:                                 SPARC Options.      (line  236)
! * mvliw-branch:                          FRV Options.        (line  201)
  * mvms-return-codes:                     VMS Options.        (line    9)
  * mvolatile-asm-stop:                    IA-64 Options.      (line   32)
! * mvolatile-cache:                       ARC Options.        (line  309)
! * mvr4130-align:                         MIPS Options.       (line  794)
  * mvrsave:                               RS/6000 and PowerPC Options.
!                                                              (line  173)
  * mvsx:                                  RS/6000 and PowerPC Options.
!                                                              (line  222)
  * mvx:                                   S/390 and zSeries Options.
!                                                              (line  112)
  * mvxworks:                              RS/6000 and PowerPC Options.
!                                                              (line  740)
! * mvzeroupper:                           x86 Options.        (line  708)
  * mwarn-cell-microcode:                  RS/6000 and PowerPC Options.
!                                                              (line  179)
  * mwarn-dynamicstack:                    S/390 and zSeries Options.
!                                                              (line  181)
  * mwarn-framesize:                       S/390 and zSeries Options.
!                                                              (line  173)
  * mwarn-mcu:                             MSP430 Options.     (line   35)
  * mwarn-multiple-fast-interrupts:        RX Options.         (line  143)
  * mwarn-reloc:                           SPU Options.        (line   10)
*************** look up both forms.
*** 54144,54157 ****
  * mwindows:                              x86 Windows Options.
                                                               (line   41)
  * mword-relocations:                     ARM Options.        (line  326)
! * mx32:                                  x86 Options.        (line 1125)
! * mxgot <1>:                             MIPS Options.       (line  231)
! * mxgot:                                 M680x0 Options.     (line  319)
  * mxilinx-fpu:                           RS/6000 and PowerPC Options.
!                                                              (line  452)
  * mxl-barrel-shift:                      MicroBlaze Options. (line   33)
  * mxl-compat:                            RS/6000 and PowerPC Options.
!                                                              (line  388)
  * mxl-float-convert:                     MicroBlaze Options. (line   51)
  * mxl-float-sqrt:                        MicroBlaze Options. (line   54)
  * mxl-gp-opt:                            MicroBlaze Options. (line   45)
--- 53723,53736 ----
  * mwindows:                              x86 Windows Options.
                                                               (line   41)
  * mword-relocations:                     ARM Options.        (line  326)
! * mx32:                                  x86 Options.        (line 1147)
! * mxgot:                                 M680x0 Options.     (line  315)
! * mxgot <1>:                             MIPS Options.       (line  228)
  * mxilinx-fpu:                           RS/6000 and PowerPC Options.
!                                                              (line  450)
  * mxl-barrel-shift:                      MicroBlaze Options. (line   33)
  * mxl-compat:                            RS/6000 and PowerPC Options.
!                                                              (line  387)
  * mxl-float-convert:                     MicroBlaze Options. (line   51)
  * mxl-float-sqrt:                        MicroBlaze Options. (line   54)
  * mxl-gp-opt:                            MicroBlaze Options. (line   45)
*************** look up both forms.
*** 54161,54850 ****
  * mxl-soft-div:                          MicroBlaze Options. (line   30)
  * mxl-soft-mul:                          MicroBlaze Options. (line   27)
  * mxl-stack-check:                       MicroBlaze Options. (line   42)
! * mxop:                                  x86 Options.        (line  637)
! * mxpa:                                  MIPS Options.       (line  414)
! * mxsave:                                x86 Options.        (line  646)
! * mxsavec:                               x86 Options.        (line  648)
! * mxsaveopt:                             x86 Options.        (line  647)
! * mxsaves:                               x86 Options.        (line  649)
! * mxy:                                   ARC Options.        (line  264)
  * myellowknife:                          RS/6000 and PowerPC Options.
!                                                              (line  737)
  * mzarch:                                S/390 and zSeries Options.
!                                                              (line   95)
  * mzda:                                  V850 Options.       (line   45)
! * mzdcbranch:                            SH Options.         (line  345)
! * mzero-extend:                          MMIX Options.       (line   27)
  * mzvector:                              S/390 and zSeries Options.
!                                                              (line  124)
! * no-canonical-prefixes:                 Directory Options.  (line   88)
  * no-integrated-cpp:                     Preprocessor Options.
                                                               (line   34)
  * no-pie:                                Link Options.       (line  111)
! * no-sysroot-suffix:                     Directory Options.  (line  107)
! * no_dead_strip_inits_and_terms:         Darwin Options.     (line  196)
  * noall_load:                            Darwin Options.     (line  196)
! * nocpp:                                 MIPS Options.       (line  611)
  * nodefaultlibs:                         Link Options.       (line   68)
! * nodevicelib:                           AVR Options.        (line  233)
  * nofixprebinding:                       Darwin Options.     (line  196)
  * nofpu:                                 RX Options.         (line   17)
! * nolibdld:                              HPPA Options.       (line  181)
  * nomultidefs:                           Darwin Options.     (line  196)
  * non-static:                            VxWorks Options.    (line   16)
  * noprebind:                             Darwin Options.     (line  196)
  * noseglinkedit:                         Darwin Options.     (line  196)
  * nostartfiles:                          Link Options.       (line   63)
  * nostdinc:                              Preprocessor Options.
!                                                              (line  399)
! * nostdinc++ <1>:                        Preprocessor Options.
!                                                              (line  404)
  * nostdinc++:                            C++ Dialect Options.
!                                                              (line  395)
  * nostdlib:                              Link Options.       (line   80)
! * o:                                     Preprocessor Options.
!                                                              (line   87)
! * O:                                     Optimize Options.   (line   39)
  * o:                                     Overall Options.    (line  184)
  * O0:                                    Optimize Options.   (line  148)
  * O1:                                    Optimize Options.   (line   39)
  * O2:                                    Optimize Options.   (line   93)
  * O3:                                    Optimize Options.   (line  139)
  * Ofast:                                 Optimize Options.   (line  162)
! * Og:                                    Optimize Options.   (line  169)
  * Os:                                    Optimize Options.   (line  152)
- * P:                                     Preprocessor Options.
-                                                              (line  648)
  * p:                                     Instrumentation Options.
                                                               (line   19)
  * pagezero_size:                         Darwin Options.     (line  196)
! * param:                                 Optimize Options.   (line 2330)
  * pass-exit-codes:                       Overall Options.    (line  323)
- * pedantic <1>:                          Warnings and Errors.
-                                                              (line   25)
- * pedantic <2>:                          Alternate Keywords. (line   30)
- * pedantic <3>:                          C Extensions.       (line    6)
- * pedantic <4>:                          Preprocessor Options.
-                                                              (line  175)
- * pedantic <5>:                          Warning Options.    (line   82)
  * pedantic:                              Standards.          (line   13)
! * pedantic-errors <1>:                   Warnings and Errors.
                                                               (line   25)
- * pedantic-errors <2>:                   Non-bugs.           (line  216)
- * pedantic-errors <3>:                   Preprocessor Options.
-                                                              (line  180)
- * pedantic-errors <4>:                   Warning Options.    (line  124)
  * pedantic-errors:                       Standards.          (line   13)
  * pg:                                    Instrumentation Options.
                                                               (line   25)
  * pie:                                   Link Options.       (line  105)
  * pipe:                                  Overall Options.    (line  331)
  * prebind:                               Darwin Options.     (line  196)
  * prebind_all_twolevel_modules:          Darwin Options.     (line  196)
! * print-file-name:                       Developer Options.  (line  980)
! * print-libgcc-file-name:                Developer Options.  (line 1014)
! * print-multi-directory:                 Developer Options.  (line  986)
! * print-multi-lib:                       Developer Options.  (line  991)
! * print-multi-os-directory:              Developer Options.  (line  998)
! * print-multiarch:                       Developer Options.  (line 1007)
  * print-objc-runtime-info:               Objective-C and Objective-C++ Dialect Options.
                                                               (line  217)
! * print-prog-name:                       Developer Options.  (line 1011)
! * print-search-dirs:                     Developer Options.  (line 1022)
! * print-sysroot:                         Developer Options.  (line 1035)
! * print-sysroot-headers-suffix:          Developer Options.  (line 1042)
  * private_bundle:                        Darwin Options.     (line  196)
- * pthread <1>:                           Solaris 2 Options.  (line   38)
  * pthread:                               RS/6000 and PowerPC Options.
!                                                              (line  863)
! * pthreads:                              Solaris 2 Options.  (line   32)
! * Q:                                     Developer Options.  (line  887)
  * Qn:                                    System V Options.   (line   18)
  * Qy:                                    System V Options.   (line   14)
  * rdynamic:                              Link Options.       (line  114)
  * read_only_relocs:                      Darwin Options.     (line  196)
  * remap:                                 Preprocessor Options.
!                                                              (line  696)
! * s:                                     Link Options.       (line  121)
! * S <1>:                                 Link Options.       (line   20)
  * S:                                     Overall Options.    (line  167)
! * save-temps:                            Developer Options.  (line  762)
! * save-temps=obj:                        Developer Options.  (line  788)
  * sectalign:                             Darwin Options.     (line  196)
  * sectcreate:                            Darwin Options.     (line  196)
  * sectobjectsymbols:                     Darwin Options.     (line  196)
  * sectorder:                             Darwin Options.     (line  196)
  * seg1addr:                              Darwin Options.     (line  196)
- * seg_addr_table:                        Darwin Options.     (line  196)
- * seg_addr_table_filename:               Darwin Options.     (line  196)
  * segaddr:                               Darwin Options.     (line  196)
  * seglinkedit:                           Darwin Options.     (line  196)
  * segprot:                               Darwin Options.     (line  196)
  * segs_read_only_addr:                   Darwin Options.     (line  196)
  * segs_read_write_addr:                  Darwin Options.     (line  196)
! * shared:                                Link Options.       (line  130)
! * shared-libgcc:                         Link Options.       (line  138)
  * short-calls:                           Adapteva Epiphany Options.
                                                               (line   61)
  * sim:                                   CRIS Options.       (line   95)
  * sim2:                                  CRIS Options.       (line  101)
  * single_module:                         Darwin Options.     (line  196)
  * specs:                                 Overall Options.    (line  337)
- * static <1>:                            HPPA Options.       (line  185)
- * static <2>:                            Darwin Options.     (line  196)
  * static:                                Link Options.       (line  125)
! * static-libasan:                        Link Options.       (line  173)
! * static-libgcc:                         Link Options.       (line  138)
! * static-liblsan:                        Link Options.       (line  191)
! * static-libmpx:                         Link Options.       (line  209)
! * static-libmpxwrappers:                 Link Options.       (line  218)
! * static-libstdc++:                      Link Options.       (line  228)
! * static-libtsan:                        Link Options.       (line  182)
! * static-libubsan:                       Link Options.       (line  200)
! * std <1>:                               Non-bugs.           (line  107)
! * std <2>:                               Other Builtins.     (line   31)
! * std <3>:                               C Dialect Options.  (line   47)
  * std:                                   Standards.          (line   13)
  * std=:                                  Preprocessor Options.
!                                                              (line  338)
  * sub_library:                           Darwin Options.     (line  196)
  * sub_umbrella:                          Darwin Options.     (line  196)
! * symbolic:                              Link Options.       (line  239)
! * sysroot:                               Directory Options.  (line   92)
! * T:                                     Link Options.       (line  245)
! * target-help <1>:                       Preprocessor Options.
!                                                              (line  701)
  * target-help:                           Overall Options.    (line  216)
! * threads:                               HPPA Options.       (line  198)
! * time:                                  Developer Options.  (line  803)
  * tno-android-cc:                        GNU/Linux Options.  (line   36)
  * tno-android-ld:                        GNU/Linux Options.  (line   40)
  * traditional <1>:                       Incompatibilities.  (line    6)
! * traditional:                           C Dialect Options.  (line  347)
  * traditional-cpp <1>:                   Preprocessor Options.
!                                                              (line  679)
! * traditional-cpp:                       C Dialect Options.  (line  347)
  * trigraphs <1>:                         Preprocessor Options.
!                                                              (line  683)
! * trigraphs:                             C Dialect Options.  (line  342)
  * twolevel_namespace:                    Darwin Options.     (line  196)
- * u:                                     Link Options.       (line  277)
  * U:                                     Preprocessor Options.
                                                               (line   69)
  * umbrella:                              Darwin Options.     (line  196)
  * undef:                                 Preprocessor Options.
                                                               (line   73)
  * undefined:                             Darwin Options.     (line  196)
  * unexported_symbols_list:               Darwin Options.     (line  196)
- * v <1>:                                 Preprocessor Options.
-                                                              (line  705)
  * v:                                     Overall Options.    (line  195)
! * version <1>:                           Preprocessor Options.
!                                                              (line  718)
  * version:                               Overall Options.    (line  320)
! * W:                                     Incompatibilities.  (line   64)
! * w <1>:                                 ARC Options.        (line  122)
! * w:                                     Preprocessor Options.
!                                                              (line  171)
! * W:                                     Warning Options.    (line  193)
  * w:                                     Warning Options.    (line   25)
  * Wa:                                    Assembler Options.  (line    9)
  * Wabi:                                  C++ Dialect Options.
!                                                              (line  403)
  * Wabi-tag:                              C++ Dialect Options.
!                                                              (line  510)
! * Waddr-space-convert:                   AVR Options.        (line  236)
! * Waddress:                              Warning Options.    (line 1558)
! * Waggregate-return:                     Warning Options.    (line 1594)
! * Waggressive-loop-optimizations:        Warning Options.    (line 1599)
! * Wall <1>:                              Standard Libraries. (line    6)
! * Wall <2>:                              Preprocessor Options.
                                                               (line   93)
! * Wall:                                  Warning Options.    (line  133)
! * Warray-bounds:                         Warning Options.    (line 1027)
  * Wassign-intercept:                     Objective-C and Objective-C++ Dialect Options.
                                                               (line  171)
! * Wattributes:                           Warning Options.    (line 1604)
! * Wbad-function-cast:                    Warning Options.    (line 1349)
! * Wbool-compare:                         Warning Options.    (line 1043)
! * Wbuiltin-macro-redefined:              Warning Options.    (line 1610)
! * Wc++-compat:                           Warning Options.    (line 1371)
! * Wc++11-compat:                         Warning Options.    (line 1376)
! * Wc++14-compat:                         Warning Options.    (line 1382)
! * Wc90-c99-compat:                       Warning Options.    (line 1354)
! * Wc99-c11-compat:                       Warning Options.    (line 1362)
! * Wcast-align:                           Warning Options.    (line 1402)
! * Wcast-qual:                            Warning Options.    (line 1386)
! * Wchar-subscripts:                      Warning Options.    (line  233)
! * Wchkp:                                 Warning Options.    (line  243)
! * Wclobbered:                            Warning Options.    (line 1422)
  * Wcomment <1>:                          Preprocessor Options.
                                                               (line  101)
- * Wcomment:                              Warning Options.    (line  238)
  * Wcomments:                             Preprocessor Options.
                                                               (line  101)
! * Wconditionally-supported:              Warning Options.    (line 1426)
! * Wconversion:                           Warning Options.    (line 1429)
! * Wconversion-null:                      Warning Options.    (line 1447)
  * Wctor-dtor-privacy:                    C++ Dialect Options.
!                                                              (line  515)
! * Wdate-time:                            Warning Options.    (line 1468)
! * Wdeclaration-after-statement:          Warning Options.    (line 1223)
! * Wdelete-incomplete:                    Warning Options.    (line 1473)
  * Wdelete-non-virtual-dtor:              C++ Dialect Options.
!                                                              (line  522)
! * Wdeprecated:                           Warning Options.    (line 1733)
! * Wdeprecated-declarations:              Warning Options.    (line 1737)
! * Wdisabled-optimization:                Warning Options.    (line 1906)
! * Wdiscarded-array-qualifiers:           Warning Options.    (line 1070)
! * Wdiscarded-qualifiers:                 Warning Options.    (line 1064)
! * Wdiv-by-zero:                          Warning Options.    (line 1088)
! * Wdouble-promotion:                     Warning Options.    (line  266)
! * Wduplicated-cond:                      Warning Options.    (line 1052)
  * weak_reference_mismatches:             Darwin Options.     (line  196)
  * Weffc++:                               C++ Dialect Options.
!                                                              (line  611)
! * Wempty-body:                           Warning Options.    (line 1480)
  * Wendif-labels <1>:                     Preprocessor Options.
                                                               (line  148)
! * Wendif-labels:                         Warning Options.    (line 1232)
! * Wenum-compare:                         Warning Options.    (line 1484)
  * Werror <1>:                            Preprocessor Options.
                                                               (line  161)
- * Werror:                                Warning Options.    (line   28)
  * Werror=:                               Warning Options.    (line   31)
! * Wextra:                                Warning Options.    (line  193)
  * Wfatal-errors:                         Warning Options.    (line   48)
! * Wfloat-conversion:                     Warning Options.    (line 1513)
! * Wfloat-equal:                          Warning Options.    (line 1122)
! * Wformat <1>:                           Common Function Attributes.
                                                               (line  234)
! * Wformat:                               Warning Options.    (line  285)
! * Wformat-contains-nul:                  Warning Options.    (line  322)
! * Wformat-extra-args:                    Warning Options.    (line  326)
  * Wformat-nonliteral <1>:                Common Function Attributes.
!                                                              (line  300)
! * Wformat-nonliteral:                    Warning Options.    (line  350)
! * Wformat-security:                      Warning Options.    (line  355)
! * Wformat-signedness:                    Warning Options.    (line  367)
! * Wformat-y2k:                           Warning Options.    (line  372)
! * Wformat-zero-length:                   Warning Options.    (line  340)
! * Wformat=:                              Warning Options.    (line  285)
! * Wformat=1:                             Warning Options.    (line  312)
! * Wformat=2:                             Warning Options.    (line  345)
! * Wframe-address:                        Warning Options.    (line 1058)
! * Wframe-larger-than:                    Warning Options.    (line 1251)
! * Wfree-nonheap-object:                  Warning Options.    (line 1260)
  * whatsloaded:                           Darwin Options.     (line  196)
  * whyload:                               Darwin Options.     (line  196)
! * Wignored-attributes:                   Warning Options.    (line  437)
! * Wignored-qualifiers:                   Warning Options.    (line  426)
! * Wimplicit:                             Warning Options.    (line  422)
! * Wimplicit-function-declaration:        Warning Options.    (line  416)
! * Wimplicit-int:                         Warning Options.    (line  412)
! * Wincompatible-pointer-types:           Warning Options.    (line 1076)
! * Winherited-variadic-ctor:              Warning Options.    (line 1818)
! * Winit-self:                            Warning Options.    (line  397)
  * Winline <1>:                           Inline.             (line   60)
! * Winline:                               Warning Options.    (line 1823)
! * Wint-conversion:                       Warning Options.    (line 1082)
! * Wint-to-pointer-cast:                  Warning Options.    (line 1848)
! * Winvalid-memory-model:                 Warning Options.    (line  801)
! * Winvalid-offsetof:                     Warning Options.    (line 1836)
! * Winvalid-pch:                          Warning Options.    (line 1857)
! * Wjump-misses-init:                     Warning Options.    (line 1490)
! * Wl:                                    Link Options.       (line  269)
! * Wlarger-than-LEN:                      Warning Options.    (line 1248)
! * Wlarger-than=LEN:                      Warning Options.    (line 1248)
! * wlh1:                                  ARC Options.        (line  127)
! * wlh2:                                  ARC Options.        (line  132)
! * wlh3:                                  ARC Options.        (line  137)
! * wlh4:                                  ARC Options.        (line  142)
! * wlh5:                                  ARC Options.        (line  147)
  * Wliteral-suffix:                       C++ Dialect Options.
!                                                              (line  529)
! * Wlogical-not-parentheses:              Warning Options.    (line 1579)
! * Wlogical-op:                           Warning Options.    (line 1571)
! * Wlong-long:                            Warning Options.    (line 1861)
  * Wlto-type-mismatch:                    C++ Dialect Options.
!                                                              (line  550)
! * Wmain:                                 Warning Options.    (line  444)
! * Wmaybe-uninitialized:                  Warning Options.    (line  818)
! * Wmemset-transposed-args:               Warning Options.    (line 1547)
! * Wmisleading-indentation:               Warning Options.    (line  451)
! * Wmissing-braces:                       Warning Options.    (line  485)
! * Wmissing-declarations:                 Warning Options.    (line 1649)
! * Wmissing-field-initializers:           Warning Options.    (line 1659)
! * Wmissing-format-attribute:             Warning Options.    (line  982)
! * Wmissing-include-dirs:                 Warning Options.    (line  496)
! * Wmissing-parameter-type:               Warning Options.    (line 1631)
! * Wmissing-prototypes:                   Warning Options.    (line 1639)
! * Wmultichar:                            Warning Options.    (line 1683)
  * Wmultiple-inheritance:                 C++ Dialect Options.
!                                                              (line  706)
  * Wnamespaces:                           C++ Dialect Options.
!                                                              (line  722)
  * Wnarrowing:                            C++ Dialect Options.
!                                                              (line  555)
! * Wnested-externs:                       Warning Options.    (line 1815)
  * Wno-abi:                               C++ Dialect Options.
!                                                              (line  403)
! * Wno-address:                           Warning Options.    (line 1558)
! * Wno-aggregate-return:                  Warning Options.    (line 1594)
! * Wno-aggressive-loop-optimizations:     Warning Options.    (line 1599)
! * Wno-all:                               Warning Options.    (line  133)
! * Wno-array-bounds:                      Warning Options.    (line 1027)
  * Wno-assign-intercept:                  Objective-C and Objective-C++ Dialect Options.
                                                               (line  171)
! * Wno-attributes:                        Warning Options.    (line 1604)
! * Wno-bad-function-cast:                 Warning Options.    (line 1349)
! * Wno-bool-compare:                      Warning Options.    (line 1043)
! * Wno-builtin-macro-redefined:           Warning Options.    (line 1610)
! * Wno-c90-c99-compat:                    Warning Options.    (line 1354)
! * Wno-c99-c11-compat:                    Warning Options.    (line 1362)
! * Wno-cast-align:                        Warning Options.    (line 1402)
! * Wno-cast-qual:                         Warning Options.    (line 1386)
! * Wno-char-subscripts:                   Warning Options.    (line  233)
! * Wno-clobbered:                         Warning Options.    (line 1422)
! * Wno-comment:                           Warning Options.    (line  238)
! * Wno-conditionally-supported:           Warning Options.    (line 1426)
! * Wno-conversion:                        Warning Options.    (line 1429)
! * Wno-conversion-null:                   Warning Options.    (line 1447)
! * Wno-coverage-mismatch:                 Warning Options.    (line  247)
  * Wno-ctor-dtor-privacy:                 C++ Dialect Options.
!                                                              (line  515)
! * Wno-date-time:                         Warning Options.    (line 1468)
! * Wno-declaration-after-statement:       Warning Options.    (line 1223)
! * Wno-delete-incomplete:                 Warning Options.    (line 1473)
  * Wno-delete-non-virtual-dtor:           C++ Dialect Options.
!                                                              (line  522)
! * Wno-deprecated:                        Warning Options.    (line 1733)
! * Wno-deprecated-declarations:           Warning Options.    (line 1737)
! * Wno-disabled-optimization:             Warning Options.    (line 1906)
! * Wno-discarded-array-qualifiers:        Warning Options.    (line 1070)
! * Wno-discarded-qualifiers:              Warning Options.    (line 1064)
! * Wno-div-by-zero:                       Warning Options.    (line 1088)
! * Wno-double-promotion:                  Warning Options.    (line  266)
! * Wno-duplicated-cond:                   Warning Options.    (line 1052)
  * Wno-effc++:                            C++ Dialect Options.
!                                                              (line  611)
! * Wno-empty-body:                        Warning Options.    (line 1480)
! * Wno-endif-labels:                      Warning Options.    (line 1232)
! * Wno-enum-compare:                      Warning Options.    (line 1484)
  * Wno-error:                             Warning Options.    (line   28)
  * Wno-error=:                            Warning Options.    (line   31)
! * Wno-extra:                             Warning Options.    (line  193)
  * Wno-fatal-errors:                      Warning Options.    (line   48)
! * Wno-float-conversion:                  Warning Options.    (line 1513)
! * Wno-float-equal:                       Warning Options.    (line 1122)
! * Wno-format:                            Warning Options.    (line  285)
! * Wno-format-contains-nul:               Warning Options.    (line  322)
! * Wno-format-extra-args:                 Warning Options.    (line  326)
! * Wno-format-nonliteral:                 Warning Options.    (line  350)
! * Wno-format-security:                   Warning Options.    (line  355)
! * Wno-format-signedness:                 Warning Options.    (line  367)
! * Wno-format-y2k:                        Warning Options.    (line  372)
! * Wno-format-zero-length:                Warning Options.    (line  340)
! * Wno-frame-address:                     Warning Options.    (line 1058)
! * Wno-free-nonheap-object:               Warning Options.    (line 1260)
! * Wno-ignored-attributes:                Warning Options.    (line  437)
! * Wno-ignored-qualifiers:                Warning Options.    (line  426)
! * Wno-implicit:                          Warning Options.    (line  422)
! * Wno-implicit-function-declaration:     Warning Options.    (line  416)
! * Wno-implicit-int:                      Warning Options.    (line  412)
! * Wno-incompatible-pointer-types:        Warning Options.    (line 1076)
! * Wno-inherited-variadic-ctor:           Warning Options.    (line 1818)
! * Wno-init-self:                         Warning Options.    (line  397)
! * Wno-inline:                            Warning Options.    (line 1823)
! * Wno-int-conversion:                    Warning Options.    (line 1082)
! * Wno-int-to-pointer-cast:               Warning Options.    (line 1848)
! * Wno-invalid-memory-model:              Warning Options.    (line  801)
! * Wno-invalid-offsetof:                  Warning Options.    (line 1836)
! * Wno-invalid-pch:                       Warning Options.    (line 1857)
! * Wno-jump-misses-init:                  Warning Options.    (line 1490)
  * Wno-literal-suffix:                    C++ Dialect Options.
!                                                              (line  529)
! * Wno-logical-not-parentheses:           Warning Options.    (line 1579)
! * Wno-logical-op:                        Warning Options.    (line 1571)
! * Wno-long-long:                         Warning Options.    (line 1861)
  * Wno-lto-type-mismatch:                 C++ Dialect Options.
!                                                              (line  550)
! * Wno-main:                              Warning Options.    (line  444)
! * Wno-maybe-uninitialized:               Warning Options.    (line  818)
! * Wno-memset-transposed-args:            Warning Options.    (line 1547)
! * Wno-misleading-indentation:            Warning Options.    (line  451)
! * Wno-missing-braces:                    Warning Options.    (line  485)
! * Wno-missing-declarations:              Warning Options.    (line 1649)
! * Wno-missing-field-initializers:        Warning Options.    (line 1659)
! * Wno-missing-format-attribute:          Warning Options.    (line  982)
! * Wno-missing-include-dirs:              Warning Options.    (line  496)
! * Wno-missing-parameter-type:            Warning Options.    (line 1631)
! * Wno-missing-prototypes:                Warning Options.    (line 1639)
! * Wno-multichar:                         Warning Options.    (line 1683)
  * Wno-narrowing:                         C++ Dialect Options.
!                                                              (line  555)
! * Wno-nested-externs:                    Warning Options.    (line 1815)
  * Wno-noexcept:                          C++ Dialect Options.
!                                                              (line  572)
  * Wno-non-template-friend:               C++ Dialect Options.
!                                                              (line  648)
  * Wno-non-virtual-dtor:                  C++ Dialect Options.
!                                                              (line  578)
! * Wno-nonnull:                           Warning Options.    (line  376)
! * Wno-nonnull-compare:                   Warning Options.    (line  383)
! * Wno-normalized:                        Warning Options.    (line 1689)
! * Wno-null-dereference:                  Warning Options.    (line  390)
! * Wno-odr:                               Warning Options.    (line 1746)
  * Wno-old-style-cast:                    C++ Dialect Options.
!                                                              (line  664)
! * Wno-old-style-declaration:             Warning Options.    (line 1621)
! * Wno-old-style-definition:              Warning Options.    (line 1627)
! * Wno-overflow:                          Warning Options.    (line 1743)
! * Wno-overlength-strings:                Warning Options.    (line 1926)
  * Wno-overloaded-virtual:                C++ Dialect Options.
!                                                              (line  670)
! * Wno-override-init:                     Warning Options.    (line 1756)
! * Wno-override-init-side-effects:        Warning Options.    (line 1764)
! * Wno-packed:                            Warning Options.    (line 1769)
! * Wno-packed-bitfield-compat:            Warning Options.    (line 1786)
! * Wno-padded:                            Warning Options.    (line 1803)
! * Wno-parentheses:                       Warning Options.    (line  499)
! * Wno-pedantic-ms-format:                Warning Options.    (line 1292)
! * Wno-placement-new:                     Warning Options.    (line 1299)
  * Wno-pmf-conversions <1>:               Bound member functions.
                                                               (line   35)
! * Wno-pmf-conversions:                   C++ Dialect Options.
!                                                              (line  689)
! * Wno-pointer-arith:                     Warning Options.    (line 1335)
! * Wno-pointer-sign:                      Warning Options.    (line 1915)
! * Wno-pointer-to-int-cast:               Warning Options.    (line 1853)
! * Wno-pragmas:                           Warning Options.    (line  868)
  * Wno-protocol:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line  175)
! * Wno-redundant-decls:                   Warning Options.    (line 1810)
  * Wno-reorder:                           C++ Dialect Options.
!                                                              (line  586)
! * Wno-return-local-addr:                 Warning Options.    (line  594)
! * Wno-return-type:                       Warning Options.    (line  598)
  * Wno-selector:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line  185)
! * Wno-sequence-point:                    Warning Options.    (line  548)
! * Wno-shadow:                            Warning Options.    (line 1236)
! * Wno-shadow-ivar:                       Warning Options.    (line 1244)
! * Wno-shift-count-negative:              Warning Options.    (line  613)
! * Wno-shift-count-overflow:              Warning Options.    (line  617)
! * Wno-shift-negative-value:              Warning Options.    (line  621)
! * Wno-shift-overflow:                    Warning Options.    (line  626)
! * Wno-sign-compare:                      Warning Options.    (line 1501)
! * Wno-sign-conversion:                   Warning Options.    (line 1507)
  * Wno-sign-promo:                        C++ Dialect Options.
!                                                              (line  693)
! * Wno-sized-deallocation:                Warning Options.    (line 1523)
! * Wno-sizeof-array-argument:             Warning Options.    (line 1542)
! * Wno-sizeof-pointer-memaccess:          Warning Options.    (line 1534)
! * Wno-stack-protector:                   Warning Options.    (line 1921)
! * Wno-strict-aliasing:                   Warning Options.    (line  873)
  * Wno-strict-null-sentinel:              C++ Dialect Options.
!                                                              (line  640)
! * Wno-strict-overflow:                   Warning Options.    (line  913)
! * Wno-strict-prototypes:                 Warning Options.    (line 1615)
  * Wno-strict-selector-match:             Objective-C and Objective-C++ Dialect Options.
                                                               (line  197)
! * Wno-subobject-linkage:                 Warning Options.    (line 1455)
! * Wno-suggest-attribute=:                Warning Options.    (line  963)
! * Wno-suggest-attribute=const:           Warning Options.    (line  969)
! * Wno-suggest-attribute=format:          Warning Options.    (line  982)
! * Wno-suggest-attribute=noreturn:        Warning Options.    (line  969)
! * Wno-suggest-attribute=pure:            Warning Options.    (line  969)
! * Wno-suggest-final-methods:             Warning Options.    (line 1012)
! * Wno-suggest-final-types:               Warning Options.    (line 1003)
! * Wno-switch:                            Warning Options.    (line  641)
! * Wno-switch-bool:                       Warning Options.    (line  661)
! * Wno-switch-default:                    Warning Options.    (line  649)
! * Wno-switch-enum:                       Warning Options.    (line  652)
! * Wno-sync-nand:                         Warning Options.    (line  672)
! * Wno-system-headers:                    Warning Options.    (line 1093)
! * Wno-tautological-compare:              Warning Options.    (line 1104)
  * Wno-terminate:                         C++ Dialect Options.
!                                                              (line  729)
! * Wno-traditional:                       Warning Options.    (line 1137)
! * Wno-traditional-conversion:            Warning Options.    (line 1215)
! * Wno-trampolines:                       Warning Options.    (line 1112)
! * Wno-trigraphs:                         Warning Options.    (line  677)
! * Wno-type-limits:                       Warning Options.    (line 1342)
  * Wno-undeclared-selector:               Objective-C and Objective-C++ Dialect Options.
                                                               (line  205)
! * Wno-undef:                             Warning Options.    (line 1229)
! * Wno-uninitialized:                     Warning Options.    (line  778)
! * Wno-unknown-pragmas:                   Warning Options.    (line  861)
! * Wno-unsafe-loop-optimizations:         Warning Options.    (line 1286)
! * Wno-unused:                            Warning Options.    (line  771)
! * Wno-unused-but-set-parameter:          Warning Options.    (line  682)
! * Wno-unused-but-set-variable:           Warning Options.    (line  691)
! * Wno-unused-const-variable:             Warning Options.    (line  738)
! * Wno-unused-function:                   Warning Options.    (line  701)
! * Wno-unused-label:                      Warning Options.    (line  706)
! * Wno-unused-parameter:                  Warning Options.    (line  717)
! * Wno-unused-result:                     Warning Options.    (line  724)
! * Wno-unused-value:                      Warning Options.    (line  761)
! * Wno-unused-variable:                   Warning Options.    (line  729)
! * Wno-useless-cast:                      Warning Options.    (line 1477)
! * Wno-varargs:                           Warning Options.    (line 1872)
! * Wno-variadic-macros:                   Warning Options.    (line 1866)
! * Wno-vector-operation-performance:      Warning Options.    (line 1877)
! * Wno-virtual-move-assign:               Warning Options.    (line 1887)
! * Wno-vla:                               Warning Options.    (line 1896)
! * Wno-volatile-register-var:             Warning Options.    (line 1900)
! * Wno-write-strings:                     Warning Options.    (line 1408)
! * Wno-zero-as-null-pointer-constant:     Warning Options.    (line 1451)
  * Wnoexcept:                             C++ Dialect Options.
!                                                              (line  572)
  * Wnon-template-friend:                  C++ Dialect Options.
!                                                              (line  648)
  * Wnon-virtual-dtor:                     C++ Dialect Options.
!                                                              (line  578)
! * Wnonnull:                              Warning Options.    (line  376)
! * Wnonnull-compare:                      Warning Options.    (line  383)
! * Wnormalized:                           Warning Options.    (line 1689)
! * Wnormalized=:                          Warning Options.    (line 1689)
! * Wnull-dereference:                     Warning Options.    (line  390)
! * Wodr:                                  Warning Options.    (line 1746)
  * Wold-style-cast:                       C++ Dialect Options.
!                                                              (line  664)
! * Wold-style-declaration:                Warning Options.    (line 1621)
! * Wold-style-definition:                 Warning Options.    (line 1627)
! * Wopenm-simd:                           Warning Options.    (line 1751)
! * Woverflow:                             Warning Options.    (line 1743)
! * Woverlength-strings:                   Warning Options.    (line 1926)
  * Woverloaded-virtual:                   C++ Dialect Options.
!                                                              (line  670)
! * Woverride-init:                        Warning Options.    (line 1756)
! * Woverride-init-side-effects:           Warning Options.    (line 1764)
  * Wp:                                    Preprocessor Options.
                                                               (line   14)
! * Wpacked:                               Warning Options.    (line 1769)
! * Wpacked-bitfield-compat:               Warning Options.    (line 1786)
! * Wpadded:                               Warning Options.    (line 1803)
! * Wparentheses:                          Warning Options.    (line  499)
! * Wpedantic:                             Warning Options.    (line   82)
! * Wpedantic-ms-format:                   Warning Options.    (line 1292)
! * Wplacement-new:                        Warning Options.    (line 1299)
  * Wpmf-conversions:                      C++ Dialect Options.
!                                                              (line  689)
  * Wpointer-arith <1>:                    Pointer Arith.      (line   13)
! * Wpointer-arith:                        Warning Options.    (line 1335)
! * Wpointer-sign:                         Warning Options.    (line 1915)
! * Wpointer-to-int-cast:                  Warning Options.    (line 1853)
! * Wpragmas:                              Warning Options.    (line  868)
  * Wprotocol:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  175)
  * wrapper:                               Overall Options.    (line  346)
! * Wredundant-decls:                      Warning Options.    (line 1810)
  * Wreorder:                              C++ Dialect Options.
!                                                              (line  586)
! * Wreturn-local-addr:                    Warning Options.    (line  594)
! * Wreturn-type:                          Warning Options.    (line  598)
  * Wselector:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  185)
! * Wsequence-point:                       Warning Options.    (line  548)
! * Wshadow:                               Warning Options.    (line 1236)
! * Wshadow-ivar:                          Warning Options.    (line 1244)
! * Wshift-count-negative:                 Warning Options.    (line  613)
! * Wshift-count-overflow:                 Warning Options.    (line  617)
! * Wshift-negative-value:                 Warning Options.    (line  621)
! * Wshift-overflow:                       Warning Options.    (line  626)
! * Wsign-compare:                         Warning Options.    (line 1501)
! * Wsign-conversion:                      Warning Options.    (line 1507)
  * Wsign-promo:                           C++ Dialect Options.
!                                                              (line  693)
! * Wsized-deallocation:                   Warning Options.    (line 1523)
! * Wsizeof-array-argument:                Warning Options.    (line 1542)
! * Wsizeof-pointer-memaccess:             Warning Options.    (line 1534)
! * Wstack-protector:                      Warning Options.    (line 1921)
! * Wstack-usage:                          Warning Options.    (line 1264)
! * Wstrict-aliasing:                      Warning Options.    (line  873)
! * Wstrict-aliasing=n:                    Warning Options.    (line  881)
  * Wstrict-null-sentinel:                 C++ Dialect Options.
!                                                              (line  640)
! * Wstrict-overflow:                      Warning Options.    (line  913)
! * Wstrict-prototypes:                    Warning Options.    (line 1615)
  * Wstrict-selector-match:                Objective-C and Objective-C++ Dialect Options.
                                                               (line  197)
! * Wsubobject-linkage:                    Warning Options.    (line 1455)
! * Wsuggest-attribute=:                   Warning Options.    (line  963)
! * Wsuggest-attribute=const:              Warning Options.    (line  969)
! * Wsuggest-attribute=format:             Warning Options.    (line  982)
! * Wsuggest-attribute=noreturn:           Warning Options.    (line  969)
! * Wsuggest-attribute=pure:               Warning Options.    (line  969)
! * Wsuggest-final-methods:                Warning Options.    (line 1012)
! * Wsuggest-final-types:                  Warning Options.    (line 1003)
! * Wswitch:                               Warning Options.    (line  641)
! * Wswitch-bool:                          Warning Options.    (line  661)
! * Wswitch-default:                       Warning Options.    (line  649)
! * Wswitch-enum:                          Warning Options.    (line  652)
! * Wsync-nand:                            Warning Options.    (line  672)
  * Wsystem-headers <1>:                   Preprocessor Options.
                                                               (line  165)
! * Wsystem-headers:                       Warning Options.    (line 1093)
! * Wtautological-compare:                 Warning Options.    (line 1104)
  * Wtemplates:                            C++ Dialect Options.
!                                                              (line  699)
  * Wterminate:                            C++ Dialect Options.
!                                                              (line  729)
  * Wtraditional <1>:                      Preprocessor Options.
                                                               (line  118)
! * Wtraditional:                          Warning Options.    (line 1137)
! * Wtraditional-conversion:               Warning Options.    (line 1215)
! * Wtrampolines:                          Warning Options.    (line 1112)
  * Wtrigraphs <1>:                        Preprocessor Options.
                                                               (line  106)
! * Wtrigraphs:                            Warning Options.    (line  677)
! * Wtype-limits:                          Warning Options.    (line 1342)
  * Wundeclared-selector:                  Objective-C and Objective-C++ Dialect Options.
                                                               (line  205)
  * Wundef <1>:                            Preprocessor Options.
                                                               (line  124)
! * Wundef:                                Warning Options.    (line 1229)
! * Wuninitialized:                        Warning Options.    (line  778)
! * Wunknown-pragmas:                      Warning Options.    (line  861)
! * Wunsafe-loop-optimizations:            Warning Options.    (line 1286)
! * Wunsuffixed-float-constants:           Warning Options.    (line 1941)
! * Wunused:                               Warning Options.    (line  771)
! * Wunused-but-set-parameter:             Warning Options.    (line  682)
! * Wunused-but-set-variable:              Warning Options.    (line  691)
! * Wunused-const-variable:                Warning Options.    (line  738)
! * Wunused-function:                      Warning Options.    (line  701)
! * Wunused-label:                         Warning Options.    (line  706)
! * Wunused-local-typedefs:                Warning Options.    (line  713)
  * Wunused-macros:                        Preprocessor Options.
                                                               (line  129)
! * Wunused-parameter:                     Warning Options.    (line  717)
! * Wunused-result:                        Warning Options.    (line  724)
! * Wunused-value:                         Warning Options.    (line  761)
! * Wunused-variable:                      Warning Options.    (line  729)
! * Wuseless-cast:                         Warning Options.    (line 1477)
! * Wvarargs:                              Warning Options.    (line 1872)
! * Wvariadic-macros:                      Warning Options.    (line 1866)
! * Wvector-operation-performance:         Warning Options.    (line 1877)
  * Wvirtual-inheritance:                  C++ Dialect Options.
!                                                              (line  714)
! * Wvirtual-move-assign:                  Warning Options.    (line 1887)
! * Wvla:                                  Warning Options.    (line 1896)
! * Wvolatile-register-var:                Warning Options.    (line 1900)
! * Wwrite-strings:                        Warning Options.    (line 1408)
! * Wzero-as-null-pointer-constant:        Warning Options.    (line 1451)
! * x <1>:                                 Preprocessor Options.
!                                                              (line  322)
  * x:                                     Overall Options.    (line  126)
  * Xassembler:                            Assembler Options.  (line   13)
  * Xbind-lazy:                            VxWorks Options.    (line   26)
  * Xbind-now:                             VxWorks Options.    (line   30)
! * Xlinker:                               Link Options.       (line  251)
  * Xpreprocessor:                         Preprocessor Options.
                                                               (line   25)
  * Ym:                                    System V Options.   (line   26)
  * YP:                                    System V Options.   (line   22)
! * z:                                     Link Options.       (line  282)
  
  
  File: gcc.info,  Node: Keyword Index,  Prev: Option Index,  Up: Top
--- 53740,54442 ----
  * mxl-soft-div:                          MicroBlaze Options. (line   30)
  * mxl-soft-mul:                          MicroBlaze Options. (line   27)
  * mxl-stack-check:                       MicroBlaze Options. (line   42)
! * mxop:                                  x86 Options.        (line  631)
! * mxpa:                                  MIPS Options.       (line  411)
! * mxsave:                                x86 Options.        (line  640)
! * mxsavec:                               x86 Options.        (line  642)
! * mxsaveopt:                             x86 Options.        (line  641)
! * mxsaves:                               x86 Options.        (line  643)
! * mxy:                                   ARC Options.        (line  256)
  * myellowknife:                          RS/6000 and PowerPC Options.
!                                                              (line  735)
  * mzarch:                                S/390 and zSeries Options.
!                                                              (line   94)
  * mzda:                                  V850 Options.       (line   45)
! * mzdcbranch:                            SH Options.         (line  341)
! * mzero-extend:                          MMIX Options.       (line   26)
  * mzvector:                              S/390 and zSeries Options.
!                                                              (line  123)
! * no-canonical-prefixes:                 Directory Options.  (line   86)
  * no-integrated-cpp:                     Preprocessor Options.
                                                               (line   34)
  * no-pie:                                Link Options.       (line  111)
! * no-sysroot-suffix:                     Directory Options.  (line  105)
  * noall_load:                            Darwin Options.     (line  196)
! * nocpp:                                 MIPS Options.       (line  606)
  * nodefaultlibs:                         Link Options.       (line   68)
! * nodevicelib:                           AVR Options.        (line  235)
  * nofixprebinding:                       Darwin Options.     (line  196)
  * nofpu:                                 RX Options.         (line   17)
! * nolibdld:                              HPPA Options.       (line  188)
  * nomultidefs:                           Darwin Options.     (line  196)
  * non-static:                            VxWorks Options.    (line   16)
  * noprebind:                             Darwin Options.     (line  196)
  * noseglinkedit:                         Darwin Options.     (line  196)
  * nostartfiles:                          Link Options.       (line   63)
  * nostdinc:                              Preprocessor Options.
!                                                              (line  401)
  * nostdinc++:                            C++ Dialect Options.
!                                                              (line  394)
! * nostdinc++ <1>:                        Preprocessor Options.
!                                                              (line  406)
  * nostdlib:                              Link Options.       (line   80)
! * no_dead_strip_inits_and_terms:         Darwin Options.     (line  196)
  * o:                                     Overall Options.    (line  184)
+ * O:                                     Optimize Options.   (line   39)
+ * o <1>:                                 Preprocessor Options.
+                                                              (line   87)
  * O0:                                    Optimize Options.   (line  148)
  * O1:                                    Optimize Options.   (line   39)
  * O2:                                    Optimize Options.   (line   93)
  * O3:                                    Optimize Options.   (line  139)
  * Ofast:                                 Optimize Options.   (line  162)
! * Og:                                    Optimize Options.   (line  168)
  * Os:                                    Optimize Options.   (line  152)
  * p:                                     Instrumentation Options.
                                                               (line   19)
+ * P:                                     Preprocessor Options.
+                                                              (line  646)
  * pagezero_size:                         Darwin Options.     (line  196)
! * param:                                 Optimize Options.   (line 2328)
  * pass-exit-codes:                       Overall Options.    (line  323)
  * pedantic:                              Standards.          (line   13)
! * pedantic <1>:                          Warning Options.    (line   80)
! * pedantic <2>:                          Preprocessor Options.
!                                                              (line  175)
! * pedantic <3>:                          C Extensions.       (line    6)
! * pedantic <4>:                          Alternate Keywords. (line   30)
! * pedantic <5>:                          Warnings and Errors.
                                                               (line   25)
  * pedantic-errors:                       Standards.          (line   13)
+ * pedantic-errors <1>:                   Warning Options.    (line  121)
+ * pedantic-errors <2>:                   Preprocessor Options.
+                                                              (line  180)
+ * pedantic-errors <3>:                   Non-bugs.           (line  216)
+ * pedantic-errors <4>:                   Warnings and Errors.
+                                                              (line   25)
  * pg:                                    Instrumentation Options.
                                                               (line   25)
  * pie:                                   Link Options.       (line  105)
  * pipe:                                  Overall Options.    (line  331)
  * prebind:                               Darwin Options.     (line  196)
  * prebind_all_twolevel_modules:          Darwin Options.     (line  196)
! * print-file-name:                       Developer Options.  (line  952)
! * print-libgcc-file-name:                Developer Options.  (line  986)
! * print-multi-directory:                 Developer Options.  (line  958)
! * print-multi-lib:                       Developer Options.  (line  963)
! * print-multi-os-directory:              Developer Options.  (line  970)
! * print-multiarch:                       Developer Options.  (line  979)
  * print-objc-runtime-info:               Objective-C and Objective-C++ Dialect Options.
                                                               (line  217)
! * print-prog-name:                       Developer Options.  (line  983)
! * print-search-dirs:                     Developer Options.  (line  994)
! * print-sysroot:                         Developer Options.  (line 1007)
! * print-sysroot-headers-suffix:          Developer Options.  (line 1014)
  * private_bundle:                        Darwin Options.     (line  196)
  * pthread:                               RS/6000 and PowerPC Options.
!                                                              (line  864)
! * pthread <1>:                           Solaris 2 Options.  (line   36)
! * pthreads:                              Solaris 2 Options.  (line   30)
! * Q:                                     Developer Options.  (line  862)
  * Qn:                                    System V Options.   (line   18)
  * Qy:                                    System V Options.   (line   14)
  * rdynamic:                              Link Options.       (line  114)
  * read_only_relocs:                      Darwin Options.     (line  196)
  * remap:                                 Preprocessor Options.
!                                                              (line  693)
  * S:                                     Overall Options.    (line  167)
! * S <1>:                                 Link Options.       (line   20)
! * s:                                     Link Options.       (line  121)
! * save-temps:                            Developer Options.  (line  737)
! * save-temps=obj:                        Developer Options.  (line  763)
  * sectalign:                             Darwin Options.     (line  196)
  * sectcreate:                            Darwin Options.     (line  196)
  * sectobjectsymbols:                     Darwin Options.     (line  196)
+ * sectobjectsymbols <1>:                 Darwin Options.     (line  196)
  * sectorder:                             Darwin Options.     (line  196)
  * seg1addr:                              Darwin Options.     (line  196)
  * segaddr:                               Darwin Options.     (line  196)
  * seglinkedit:                           Darwin Options.     (line  196)
  * segprot:                               Darwin Options.     (line  196)
  * segs_read_only_addr:                   Darwin Options.     (line  196)
+ * segs_read_only_addr <1>:               Darwin Options.     (line  196)
  * segs_read_write_addr:                  Darwin Options.     (line  196)
! * segs_read_write_addr <1>:              Darwin Options.     (line  196)
! * seg_addr_table:                        Darwin Options.     (line  196)
! * seg_addr_table_filename:               Darwin Options.     (line  196)
! * shared:                                Link Options.       (line  129)
! * shared-libgcc:                         Link Options.       (line  137)
  * short-calls:                           Adapteva Epiphany Options.
                                                               (line   61)
  * sim:                                   CRIS Options.       (line   95)
  * sim2:                                  CRIS Options.       (line  101)
  * single_module:                         Darwin Options.     (line  196)
  * specs:                                 Overall Options.    (line  337)
  * static:                                Link Options.       (line  125)
! * static <1>:                            Darwin Options.     (line  196)
! * static <2>:                            HPPA Options.       (line  192)
! * static-libasan:                        Link Options.       (line  172)
! * static-libgcc:                         Link Options.       (line  137)
! * static-liblsan:                        Link Options.       (line  188)
! * static-libmpx:                         Link Options.       (line  205)
! * static-libmpxwrappers:                 Link Options.       (line  214)
! * static-libstdc++:                      Link Options.       (line  224)
! * static-libtsan:                        Link Options.       (line  180)
! * static-libubsan:                       Link Options.       (line  196)
  * std:                                   Standards.          (line   13)
+ * std <1>:                               C Dialect Options.  (line   46)
+ * std <2>:                               Other Builtins.     (line   31)
+ * std <3>:                               Non-bugs.           (line  107)
  * std=:                                  Preprocessor Options.
!                                                              (line  340)
  * sub_library:                           Darwin Options.     (line  196)
  * sub_umbrella:                          Darwin Options.     (line  196)
! * symbolic:                              Link Options.       (line  235)
! * sysroot:                               Directory Options.  (line   90)
! * T:                                     Link Options.       (line  241)
  * target-help:                           Overall Options.    (line  216)
! * target-help <1>:                       Preprocessor Options.
!                                                              (line  698)
! * threads:                               HPPA Options.       (line  205)
! * time:                                  Developer Options.  (line  778)
  * tno-android-cc:                        GNU/Linux Options.  (line   36)
  * tno-android-ld:                        GNU/Linux Options.  (line   40)
+ * traditional:                           C Dialect Options.  (line  348)
  * traditional <1>:                       Incompatibilities.  (line    6)
! * traditional-cpp:                       C Dialect Options.  (line  348)
  * traditional-cpp <1>:                   Preprocessor Options.
!                                                              (line  676)
! * trigraphs:                             C Dialect Options.  (line  343)
  * trigraphs <1>:                         Preprocessor Options.
!                                                              (line  680)
  * twolevel_namespace:                    Darwin Options.     (line  196)
  * U:                                     Preprocessor Options.
                                                               (line   69)
+ * u:                                     Link Options.       (line  273)
  * umbrella:                              Darwin Options.     (line  196)
  * undef:                                 Preprocessor Options.
                                                               (line   73)
  * undefined:                             Darwin Options.     (line  196)
  * unexported_symbols_list:               Darwin Options.     (line  196)
  * v:                                     Overall Options.    (line  195)
! * v <1>:                                 Preprocessor Options.
!                                                              (line  702)
  * version:                               Overall Options.    (line  320)
! * version <1>:                           Preprocessor Options.
!                                                              (line  714)
  * w:                                     Warning Options.    (line   25)
+ * W:                                     Warning Options.    (line  191)
+ * W <1>:                                 Warning Options.    (line 1644)
+ * W <2>:                                 Warning Options.    (line 1740)
+ * w <1>:                                 Preprocessor Options.
+                                                              (line  171)
+ * w <2>:                                 ARC Options.        (line  117)
+ * W <3>:                                 Incompatibilities.  (line   64)
  * Wa:                                    Assembler Options.  (line    9)
  * Wabi:                                  C++ Dialect Options.
!                                                              (line  402)
  * Wabi-tag:                              C++ Dialect Options.
!                                                              (line  506)
! * Waddr-space-convert:                   AVR Options.        (line  238)
! * Waddress:                              Warning Options.    (line 1543)
! * Waggregate-return:                     Warning Options.    (line 1579)
! * Waggressive-loop-optimizations:        Warning Options.    (line 1584)
! * Wall:                                  Warning Options.    (line  130)
! * Wall <1>:                              Preprocessor Options.
                                                               (line   93)
! * Wall <2>:                              Standard Libraries. (line    6)
! * Warray-bounds:                         Warning Options.    (line 1019)
  * Wassign-intercept:                     Objective-C and Objective-C++ Dialect Options.
                                                               (line  171)
! * Wattributes:                           Warning Options.    (line 1589)
! * Wbad-function-cast:                    Warning Options.    (line 1337)
! * Wbool-compare:                         Warning Options.    (line 1035)
! * Wbuiltin-macro-redefined:              Warning Options.    (line 1595)
! * Wc++-compat:                           Warning Options.    (line 1357)
! * Wc++11-compat:                         Warning Options.    (line 1362)
! * Wc++14-compat:                         Warning Options.    (line 1368)
! * Wc90-c99-compat:                       Warning Options.    (line 1342)
! * Wc99-c11-compat:                       Warning Options.    (line 1349)
! * Wcast-align:                           Warning Options.    (line 1388)
! * Wcast-qual:                            Warning Options.    (line 1372)
! * Wchar-subscripts:                      Warning Options.    (line  231)
! * Wchkp:                                 Warning Options.    (line  241)
! * Wclobbered:                            Warning Options.    (line 1407)
! * Wcomment:                              Warning Options.    (line  236)
  * Wcomment <1>:                          Preprocessor Options.
                                                               (line  101)
  * Wcomments:                             Preprocessor Options.
                                                               (line  101)
! * Wconditionally-supported:              Warning Options.    (line 1411)
! * Wconversion:                           Warning Options.    (line 1414)
! * Wconversion-null:                      Warning Options.    (line 1432)
  * Wctor-dtor-privacy:                    C++ Dialect Options.
!                                                              (line  511)
! * Wdate-time:                            Warning Options.    (line 1453)
! * Wdeclaration-after-statement:          Warning Options.    (line 1214)
! * Wdelete-incomplete:                    Warning Options.    (line 1458)
  * Wdelete-non-virtual-dtor:              C++ Dialect Options.
!                                                              (line  518)
! * Wdeprecated:                           Warning Options.    (line 1717)
! * Wdeprecated-declarations:              Warning Options.    (line 1721)
! * Wdisabled-optimization:                Warning Options.    (line 1889)
! * Wdiscarded-array-qualifiers:           Warning Options.    (line 1062)
! * Wdiscarded-qualifiers:                 Warning Options.    (line 1056)
! * Wdiv-by-zero:                          Warning Options.    (line 1080)
! * Wdouble-promotion:                     Warning Options.    (line  264)
! * Wduplicated-cond:                      Warning Options.    (line 1044)
  * weak_reference_mismatches:             Darwin Options.     (line  196)
  * Weffc++:                               C++ Dialect Options.
!                                                              (line  607)
! * Wempty-body:                           Warning Options.    (line 1465)
! * Wendif-labels:                         Warning Options.    (line 1223)
  * Wendif-labels <1>:                     Preprocessor Options.
                                                               (line  148)
! * Wenum-compare:                         Warning Options.    (line 1469)
! * Werror:                                Warning Options.    (line   28)
  * Werror <1>:                            Preprocessor Options.
                                                               (line  161)
  * Werror=:                               Warning Options.    (line   31)
! * Wextra:                                Warning Options.    (line  191)
! * Wextra <1>:                            Warning Options.    (line 1644)
! * Wextra <2>:                            Warning Options.    (line 1740)
  * Wfatal-errors:                         Warning Options.    (line   48)
! * Wfloat-conversion:                     Warning Options.    (line 1498)
! * Wfloat-equal:                          Warning Options.    (line 1114)
! * Wformat:                               Warning Options.    (line  283)
! * Wformat <1>:                           Warning Options.    (line  308)
! * Wformat <2>:                           Warning Options.    (line  974)
! * Wformat <3>:                           Common Function Attributes.
                                                               (line  234)
! * Wformat-contains-nul:                  Warning Options.    (line  317)
! * Wformat-extra-args:                    Warning Options.    (line  321)
! * Wformat-nonliteral:                    Warning Options.    (line  345)
  * Wformat-nonliteral <1>:                Common Function Attributes.
!                                                              (line  299)
! * Wformat-security:                      Warning Options.    (line  350)
! * Wformat-signedness:                    Warning Options.    (line  362)
! * Wformat-y2k:                           Warning Options.    (line  367)
! * Wformat-zero-length:                   Warning Options.    (line  335)
! * Wformat=:                              Warning Options.    (line  283)
! * Wformat=1:                             Warning Options.    (line  308)
! * Wformat=2:                             Warning Options.    (line  340)
! * Wframe-address:                        Warning Options.    (line 1050)
! * Wframe-larger-than:                    Warning Options.    (line 1242)
! * Wfree-nonheap-object:                  Warning Options.    (line 1251)
  * whatsloaded:                           Darwin Options.     (line  196)
  * whyload:                               Darwin Options.     (line  196)
! * Wignored-attributes:                   Warning Options.    (line  432)
! * Wignored-qualifiers:                   Warning Options.    (line  421)
! * Wimplicit:                             Warning Options.    (line  417)
! * Wimplicit-function-declaration:        Warning Options.    (line  411)
! * Wimplicit-int:                         Warning Options.    (line  407)
! * Wincompatible-pointer-types:           Warning Options.    (line 1068)
! * Winherited-variadic-ctor:              Warning Options.    (line 1801)
! * Winit-self:                            Warning Options.    (line  392)
! * Winline:                               Warning Options.    (line 1806)
  * Winline <1>:                           Inline.             (line   60)
! * Wint-conversion:                       Warning Options.    (line 1074)
! * Wint-to-pointer-cast:                  Warning Options.    (line 1831)
! * Winvalid-memory-model:                 Warning Options.    (line  794)
! * Winvalid-offsetof:                     Warning Options.    (line 1819)
! * Winvalid-pch:                          Warning Options.    (line 1840)
! * Wjump-misses-init:                     Warning Options.    (line 1475)
! * Wl:                                    Link Options.       (line  265)
! * Wlarger-than-LEN:                      Warning Options.    (line 1239)
! * Wlarger-than=LEN:                      Warning Options.    (line 1239)
! * wlh1:                                  ARC Options.        (line  122)
! * wlh2:                                  ARC Options.        (line  127)
! * wlh3:                                  ARC Options.        (line  132)
! * wlh4:                                  ARC Options.        (line  137)
! * wlh5:                                  ARC Options.        (line  142)
  * Wliteral-suffix:                       C++ Dialect Options.
!                                                              (line  525)
! * Wlogical-not-parentheses:              Warning Options.    (line 1564)
! * Wlogical-op:                           Warning Options.    (line 1556)
! * Wlong-long:                            Warning Options.    (line 1844)
  * Wlto-type-mismatch:                    C++ Dialect Options.
!                                                              (line  546)
! * Wmain:                                 Warning Options.    (line  439)
! * Wmaybe-uninitialized:                  Warning Options.    (line  811)
! * Wmemset-transposed-args:               Warning Options.    (line 1532)
! * Wmisleading-indentation:               Warning Options.    (line  446)
! * Wmissing-braces:                       Warning Options.    (line  480)
! * Wmissing-declarations:                 Warning Options.    (line 1634)
! * Wmissing-field-initializers:           Warning Options.    (line 1644)
! * Wmissing-format-attribute:             Warning Options.    (line  974)
! * Wmissing-include-dirs:                 Warning Options.    (line  491)
! * Wmissing-parameter-type:               Warning Options.    (line 1616)
! * Wmissing-prototypes:                   Warning Options.    (line 1624)
! * Wmisspelled-isr:                       AVR Options.        (line  243)
! * Wmultichar:                            Warning Options.    (line 1668)
  * Wmultiple-inheritance:                 C++ Dialect Options.
!                                                              (line  700)
  * Wnamespaces:                           C++ Dialect Options.
!                                                              (line  714)
  * Wnarrowing:                            C++ Dialect Options.
!                                                              (line  552)
! * Wnested-externs:                       Warning Options.    (line 1798)
  * Wno-abi:                               C++ Dialect Options.
!                                                              (line  402)
! * Wno-address:                           Warning Options.    (line 1543)
! * Wno-aggregate-return:                  Warning Options.    (line 1579)
! * Wno-aggressive-loop-optimizations:     Warning Options.    (line 1584)
! * Wno-all:                               Warning Options.    (line  130)
! * Wno-array-bounds:                      Warning Options.    (line 1019)
  * Wno-assign-intercept:                  Objective-C and Objective-C++ Dialect Options.
                                                               (line  171)
! * Wno-attributes:                        Warning Options.    (line 1589)
! * Wno-bad-function-cast:                 Warning Options.    (line 1337)
! * Wno-bool-compare:                      Warning Options.    (line 1035)
! * Wno-builtin-macro-redefined:           Warning Options.    (line 1595)
! * Wno-c90-c99-compat:                    Warning Options.    (line 1342)
! * Wno-c99-c11-compat:                    Warning Options.    (line 1349)
! * Wno-cast-align:                        Warning Options.    (line 1388)
! * Wno-cast-qual:                         Warning Options.    (line 1372)
! * Wno-char-subscripts:                   Warning Options.    (line  231)
! * Wno-clobbered:                         Warning Options.    (line 1407)
! * Wno-comment:                           Warning Options.    (line  236)
! * Wno-conditionally-supported:           Warning Options.    (line 1411)
! * Wno-conversion:                        Warning Options.    (line 1414)
! * Wno-conversion-null:                   Warning Options.    (line 1432)
! * Wno-coverage-mismatch:                 Warning Options.    (line  245)
  * Wno-ctor-dtor-privacy:                 C++ Dialect Options.
!                                                              (line  511)
! * Wno-date-time:                         Warning Options.    (line 1453)
! * Wno-declaration-after-statement:       Warning Options.    (line 1214)
! * Wno-delete-incomplete:                 Warning Options.    (line 1458)
  * Wno-delete-non-virtual-dtor:           C++ Dialect Options.
!                                                              (line  518)
! * Wno-deprecated:                        Warning Options.    (line 1717)
! * Wno-deprecated-declarations:           Warning Options.    (line 1721)
! * Wno-disabled-optimization:             Warning Options.    (line 1889)
! * Wno-discarded-array-qualifiers:        Warning Options.    (line 1062)
! * Wno-discarded-qualifiers:              Warning Options.    (line 1056)
! * Wno-div-by-zero:                       Warning Options.    (line 1080)
! * Wno-double-promotion:                  Warning Options.    (line  264)
! * Wno-duplicated-cond:                   Warning Options.    (line 1044)
  * Wno-effc++:                            C++ Dialect Options.
!                                                              (line  607)
! * Wno-empty-body:                        Warning Options.    (line 1465)
! * Wno-endif-labels:                      Warning Options.    (line 1223)
! * Wno-enum-compare:                      Warning Options.    (line 1469)
  * Wno-error:                             Warning Options.    (line   28)
  * Wno-error=:                            Warning Options.    (line   31)
! * Wno-extra:                             Warning Options.    (line  191)
! * Wno-extra <1>:                         Warning Options.    (line 1644)
! * Wno-extra <2>:                         Warning Options.    (line 1740)
  * Wno-fatal-errors:                      Warning Options.    (line   48)
! * Wno-float-conversion:                  Warning Options.    (line 1498)
! * Wno-float-equal:                       Warning Options.    (line 1114)
! * Wno-format:                            Warning Options.    (line  283)
! * Wno-format <1>:                        Warning Options.    (line  974)
! * Wno-format-contains-nul:               Warning Options.    (line  317)
! * Wno-format-extra-args:                 Warning Options.    (line  321)
! * Wno-format-nonliteral:                 Warning Options.    (line  345)
! * Wno-format-security:                   Warning Options.    (line  350)
! * Wno-format-signedness:                 Warning Options.    (line  362)
! * Wno-format-y2k:                        Warning Options.    (line  367)
! * Wno-format-zero-length:                Warning Options.    (line  335)
! * Wno-frame-address:                     Warning Options.    (line 1050)
! * Wno-free-nonheap-object:               Warning Options.    (line 1251)
! * Wno-ignored-attributes:                Warning Options.    (line  432)
! * Wno-ignored-qualifiers:                Warning Options.    (line  421)
! * Wno-implicit:                          Warning Options.    (line  417)
! * Wno-implicit-function-declaration:     Warning Options.    (line  411)
! * Wno-implicit-int:                      Warning Options.    (line  407)
! * Wno-incompatible-pointer-types:        Warning Options.    (line 1068)
! * Wno-inherited-variadic-ctor:           Warning Options.    (line 1801)
! * Wno-init-self:                         Warning Options.    (line  392)
! * Wno-inline:                            Warning Options.    (line 1806)
! * Wno-int-conversion:                    Warning Options.    (line 1074)
! * Wno-int-to-pointer-cast:               Warning Options.    (line 1831)
! * Wno-invalid-memory-model:              Warning Options.    (line  794)
! * Wno-invalid-offsetof:                  Warning Options.    (line 1819)
! * Wno-invalid-pch:                       Warning Options.    (line 1840)
! * Wno-jump-misses-init:                  Warning Options.    (line 1475)
  * Wno-literal-suffix:                    C++ Dialect Options.
!                                                              (line  525)
! * Wno-logical-not-parentheses:           Warning Options.    (line 1564)
! * Wno-logical-op:                        Warning Options.    (line 1556)
! * Wno-long-long:                         Warning Options.    (line 1844)
  * Wno-lto-type-mismatch:                 C++ Dialect Options.
!                                                              (line  546)
! * Wno-main:                              Warning Options.    (line  439)
! * Wno-maybe-uninitialized:               Warning Options.    (line  811)
! * Wno-memset-transposed-args:            Warning Options.    (line 1532)
! * Wno-misleading-indentation:            Warning Options.    (line  446)
! * Wno-missing-braces:                    Warning Options.    (line  480)
! * Wno-missing-declarations:              Warning Options.    (line 1634)
! * Wno-missing-field-initializers:        Warning Options.    (line 1644)
! * Wno-missing-format-attribute:          Warning Options.    (line  974)
! * Wno-missing-include-dirs:              Warning Options.    (line  491)
! * Wno-missing-parameter-type:            Warning Options.    (line 1616)
! * Wno-missing-prototypes:                Warning Options.    (line 1624)
! * Wno-multichar:                         Warning Options.    (line 1668)
  * Wno-narrowing:                         C++ Dialect Options.
!                                                              (line  552)
! * Wno-nested-externs:                    Warning Options.    (line 1798)
  * Wno-noexcept:                          C++ Dialect Options.
!                                                              (line  568)
  * Wno-non-template-friend:               C++ Dialect Options.
!                                                              (line  642)
  * Wno-non-virtual-dtor:                  C++ Dialect Options.
!                                                              (line  574)
! * Wno-nonnull:                           Warning Options.    (line  371)
! * Wno-nonnull-compare:                   Warning Options.    (line  378)
! * Wno-normalized:                        Warning Options.    (line 1674)
! * Wno-null-dereference:                  Warning Options.    (line  385)
! * Wno-odr:                               Warning Options.    (line 1730)
  * Wno-old-style-cast:                    C++ Dialect Options.
!                                                              (line  658)
! * Wno-old-style-declaration:             Warning Options.    (line 1606)
! * Wno-old-style-definition:              Warning Options.    (line 1612)
! * Wno-overflow:                          Warning Options.    (line 1727)
! * Wno-overlength-strings:                Warning Options.    (line 1909)
  * Wno-overloaded-virtual:                C++ Dialect Options.
!                                                              (line  664)
! * Wno-override-init:                     Warning Options.    (line 1740)
! * Wno-override-init-side-effects:        Warning Options.    (line 1748)
! * Wno-packed:                            Warning Options.    (line 1753)
! * Wno-packed-bitfield-compat:            Warning Options.    (line 1770)
! * Wno-padded:                            Warning Options.    (line 1787)
! * Wno-parentheses:                       Warning Options.    (line  494)
! * Wno-pedantic-ms-format:                Warning Options.    (line 1281)
! * Wno-placement-new:                     Warning Options.    (line 1288)
! * Wno-pmf-conversions:                   C++ Dialect Options.
!                                                              (line  683)
  * Wno-pmf-conversions <1>:               Bound member functions.
                                                               (line   35)
! * Wno-pointer-arith:                     Warning Options.    (line 1323)
! * Wno-pointer-sign:                      Warning Options.    (line 1898)
! * Wno-pointer-to-int-cast:               Warning Options.    (line 1836)
! * Wno-pragmas:                           Warning Options.    (line  861)
  * Wno-protocol:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line  175)
! * Wno-redundant-decls:                   Warning Options.    (line 1794)
  * Wno-reorder:                           C++ Dialect Options.
!                                                              (line  582)
! * Wno-return-local-addr:                 Warning Options.    (line  589)
! * Wno-return-type:                       Warning Options.    (line  593)
  * Wno-selector:                          Objective-C and Objective-C++ Dialect Options.
                                                               (line  185)
! * Wno-sequence-point:                    Warning Options.    (line  543)
! * Wno-shadow:                            Warning Options.    (line 1227)
! * Wno-shadow-ivar:                       Warning Options.    (line 1235)
! * Wno-shift-count-negative:              Warning Options.    (line  607)
! * Wno-shift-count-overflow:              Warning Options.    (line  611)
! * Wno-shift-negative-value:              Warning Options.    (line  615)
! * Wno-shift-overflow:                    Warning Options.    (line  620)
! * Wno-sign-compare:                      Warning Options.    (line 1486)
! * Wno-sign-conversion:                   Warning Options.    (line 1492)
  * Wno-sign-promo:                        C++ Dialect Options.
!                                                              (line  687)
! * Wno-sized-deallocation:                Warning Options.    (line 1508)
! * Wno-sizeof-array-argument:             Warning Options.    (line 1527)
! * Wno-sizeof-pointer-memaccess:          Warning Options.    (line 1519)
! * Wno-stack-protector:                   Warning Options.    (line 1904)
! * Wno-strict-aliasing:                   Warning Options.    (line  866)
  * Wno-strict-null-sentinel:              C++ Dialect Options.
!                                                              (line  635)
! * Wno-strict-overflow:                   Warning Options.    (line  905)
! * Wno-strict-prototypes:                 Warning Options.    (line 1600)
  * Wno-strict-selector-match:             Objective-C and Objective-C++ Dialect Options.
                                                               (line  197)
! * Wno-subobject-linkage:                 Warning Options.    (line 1440)
! * Wno-suggest-attribute=:                Warning Options.    (line  954)
! * Wno-suggest-attribute=const:           Warning Options.    (line  960)
! * Wno-suggest-attribute=format:          Warning Options.    (line  974)
! * Wno-suggest-attribute=noreturn:        Warning Options.    (line  960)
! * Wno-suggest-attribute=pure:            Warning Options.    (line  960)
! * Wno-suggest-final-methods:             Warning Options.    (line 1004)
! * Wno-suggest-final-types:               Warning Options.    (line  995)
! * Wno-switch:                            Warning Options.    (line  635)
! * Wno-switch-bool:                       Warning Options.    (line  655)
! * Wno-switch-default:                    Warning Options.    (line  643)
! * Wno-switch-enum:                       Warning Options.    (line  646)
! * Wno-sync-nand:                         Warning Options.    (line  666)
! * Wno-system-headers:                    Warning Options.    (line 1085)
! * Wno-tautological-compare:              Warning Options.    (line 1096)
  * Wno-terminate:                         C++ Dialect Options.
!                                                              (line  721)
! * Wno-traditional:                       Warning Options.    (line 1129)
! * Wno-traditional-conversion:            Warning Options.    (line 1206)
! * Wno-trampolines:                       Warning Options.    (line 1104)
! * Wno-trigraphs:                         Warning Options.    (line  671)
! * Wno-type-limits:                       Warning Options.    (line 1330)
  * Wno-undeclared-selector:               Objective-C and Objective-C++ Dialect Options.
                                                               (line  205)
! * Wno-undef:                             Warning Options.    (line 1220)
! * Wno-uninitialized:                     Warning Options.    (line  772)
! * Wno-unknown-pragmas:                   Warning Options.    (line  854)
! * Wno-unsafe-loop-optimizations:         Warning Options.    (line 1275)
! * Wno-unused:                            Warning Options.    (line  765)
! * Wno-unused-but-set-parameter:          Warning Options.    (line  676)
! * Wno-unused-but-set-variable:           Warning Options.    (line  685)
! * Wno-unused-const-variable:             Warning Options.    (line  732)
! * Wno-unused-function:                   Warning Options.    (line  695)
! * Wno-unused-label:                      Warning Options.    (line  700)
! * Wno-unused-parameter:                  Warning Options.    (line  711)
! * Wno-unused-result:                     Warning Options.    (line  718)
! * Wno-unused-value:                      Warning Options.    (line  755)
! * Wno-unused-variable:                   Warning Options.    (line  723)
! * Wno-useless-cast:                      Warning Options.    (line 1462)
! * Wno-varargs:                           Warning Options.    (line 1855)
! * Wno-variadic-macros:                   Warning Options.    (line 1849)
! * Wno-vector-operation-performance:      Warning Options.    (line 1860)
! * Wno-virtual-move-assign:               Warning Options.    (line 1870)
! * Wno-vla:                               Warning Options.    (line 1879)
! * Wno-volatile-register-var:             Warning Options.    (line 1883)
! * Wno-write-strings:                     Warning Options.    (line 1394)
! * Wno-zero-as-null-pointer-constant:     Warning Options.    (line 1436)
  * Wnoexcept:                             C++ Dialect Options.
!                                                              (line  568)
  * Wnon-template-friend:                  C++ Dialect Options.
!                                                              (line  642)
  * Wnon-virtual-dtor:                     C++ Dialect Options.
!                                                              (line  574)
! * Wnonnull:                              Warning Options.    (line  371)
! * Wnonnull-compare:                      Warning Options.    (line  378)
! * Wnormalized:                           Warning Options.    (line 1674)
! * Wnormalized=:                          Warning Options.    (line 1674)
! * Wnull-dereference:                     Warning Options.    (line  385)
! * Wodr:                                  Warning Options.    (line 1730)
  * Wold-style-cast:                       C++ Dialect Options.
!                                                              (line  658)
! * Wold-style-declaration:                Warning Options.    (line 1606)
! * Wold-style-definition:                 Warning Options.    (line 1612)
! * Wopenm-simd:                           Warning Options.    (line 1735)
! * Woverflow:                             Warning Options.    (line 1727)
! * Woverlength-strings:                   Warning Options.    (line 1909)
  * Woverloaded-virtual:                   C++ Dialect Options.
!                                                              (line  664)
! * Woverride-init:                        Warning Options.    (line 1740)
! * Woverride-init-side-effects:           Warning Options.    (line 1748)
  * Wp:                                    Preprocessor Options.
                                                               (line   14)
! * Wpacked:                               Warning Options.    (line 1753)
! * Wpacked-bitfield-compat:               Warning Options.    (line 1770)
! * Wpadded:                               Warning Options.    (line 1787)
! * Wparentheses:                          Warning Options.    (line  494)
! * Wpedantic:                             Warning Options.    (line   80)
! * Wpedantic-ms-format:                   Warning Options.    (line 1281)
! * Wplacement-new:                        Warning Options.    (line 1288)
  * Wpmf-conversions:                      C++ Dialect Options.
!                                                              (line  683)
! * Wpointer-arith:                        Warning Options.    (line 1323)
  * Wpointer-arith <1>:                    Pointer Arith.      (line   13)
! * Wpointer-sign:                         Warning Options.    (line 1898)
! * Wpointer-to-int-cast:                  Warning Options.    (line 1836)
! * Wpragmas:                              Warning Options.    (line  861)
  * Wprotocol:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  175)
  * wrapper:                               Overall Options.    (line  346)
! * Wredundant-decls:                      Warning Options.    (line 1794)
  * Wreorder:                              C++ Dialect Options.
!                                                              (line  582)
! * Wreturn-local-addr:                    Warning Options.    (line  589)
! * Wreturn-type:                          Warning Options.    (line  593)
  * Wselector:                             Objective-C and Objective-C++ Dialect Options.
                                                               (line  185)
! * Wsequence-point:                       Warning Options.    (line  543)
! * Wshadow:                               Warning Options.    (line 1227)
! * Wshadow-ivar:                          Warning Options.    (line 1235)
! * Wshift-count-negative:                 Warning Options.    (line  607)
! * Wshift-count-overflow:                 Warning Options.    (line  611)
! * Wshift-negative-value:                 Warning Options.    (line  615)
! * Wshift-overflow:                       Warning Options.    (line  620)
! * Wsign-compare:                         Warning Options.    (line 1486)
! * Wsign-conversion:                      Warning Options.    (line 1492)
  * Wsign-promo:                           C++ Dialect Options.
!                                                              (line  687)
! * Wsized-deallocation:                   Warning Options.    (line 1508)
! * Wsizeof-array-argument:                Warning Options.    (line 1527)
! * Wsizeof-pointer-memaccess:             Warning Options.    (line 1519)
! * Wstack-protector:                      Warning Options.    (line 1904)
! * Wstack-usage:                          Warning Options.    (line 1255)
! * Wstrict-aliasing:                      Warning Options.    (line  866)
! * Wstrict-aliasing=n:                    Warning Options.    (line  873)
  * Wstrict-null-sentinel:                 C++ Dialect Options.
!                                                              (line  635)
! * Wstrict-overflow:                      Warning Options.    (line  905)
! * Wstrict-prototypes:                    Warning Options.    (line 1600)
  * Wstrict-selector-match:                Objective-C and Objective-C++ Dialect Options.
                                                               (line  197)
! * Wsubobject-linkage:                    Warning Options.    (line 1440)
! * Wsuggest-attribute=:                   Warning Options.    (line  954)
! * Wsuggest-attribute=const:              Warning Options.    (line  960)
! * Wsuggest-attribute=format:             Warning Options.    (line  974)
! * Wsuggest-attribute=noreturn:           Warning Options.    (line  960)
! * Wsuggest-attribute=pure:               Warning Options.    (line  960)
! * Wsuggest-final-methods:                Warning Options.    (line 1004)
! * Wsuggest-final-types:                  Warning Options.    (line  995)
! * Wswitch:                               Warning Options.    (line  635)
! * Wswitch-bool:                          Warning Options.    (line  655)
! * Wswitch-default:                       Warning Options.    (line  643)
! * Wswitch-enum:                          Warning Options.    (line  646)
! * Wsync-nand:                            Warning Options.    (line  666)
! * Wsystem-headers:                       Warning Options.    (line 1085)
  * Wsystem-headers <1>:                   Preprocessor Options.
                                                               (line  165)
! * Wtautological-compare:                 Warning Options.    (line 1096)
  * Wtemplates:                            C++ Dialect Options.
!                                                              (line  693)
  * Wterminate:                            C++ Dialect Options.
!                                                              (line  721)
! * Wtraditional:                          Warning Options.    (line 1129)
  * Wtraditional <1>:                      Preprocessor Options.
                                                               (line  118)
! * Wtraditional-conversion:               Warning Options.    (line 1206)
! * Wtrampolines:                          Warning Options.    (line 1104)
! * Wtrigraphs:                            Warning Options.    (line  671)
  * Wtrigraphs <1>:                        Preprocessor Options.
                                                               (line  106)
! * Wtype-limits:                          Warning Options.    (line 1330)
  * Wundeclared-selector:                  Objective-C and Objective-C++ Dialect Options.
                                                               (line  205)
+ * Wundef:                                Warning Options.    (line 1220)
  * Wundef <1>:                            Preprocessor Options.
                                                               (line  124)
! * Wuninitialized:                        Warning Options.    (line  772)
! * Wunknown-pragmas:                      Warning Options.    (line  854)
! * Wunsafe-loop-optimizations:            Warning Options.    (line 1275)
! * Wunsuffixed-float-constants:           Warning Options.    (line 1924)
! * Wunused:                               Warning Options.    (line  765)
! * Wunused-but-set-parameter:             Warning Options.    (line  676)
! * Wunused-but-set-variable:              Warning Options.    (line  685)
! * Wunused-const-variable:                Warning Options.    (line  732)
! * Wunused-function:                      Warning Options.    (line  695)
! * Wunused-label:                         Warning Options.    (line  700)
! * Wunused-local-typedefs:                Warning Options.    (line  707)
  * Wunused-macros:                        Preprocessor Options.
                                                               (line  129)
! * Wunused-parameter:                     Warning Options.    (line  711)
! * Wunused-result:                        Warning Options.    (line  718)
! * Wunused-value:                         Warning Options.    (line  755)
! * Wunused-variable:                      Warning Options.    (line  723)
! * Wuseless-cast:                         Warning Options.    (line 1462)
! * Wvarargs:                              Warning Options.    (line 1855)
! * Wvariadic-macros:                      Warning Options.    (line 1849)
! * Wvector-operation-performance:         Warning Options.    (line 1860)
  * Wvirtual-inheritance:                  C++ Dialect Options.
!                                                              (line  707)
! * Wvirtual-move-assign:                  Warning Options.    (line 1870)
! * Wvla:                                  Warning Options.    (line 1879)
! * Wvolatile-register-var:                Warning Options.    (line 1883)
! * Wwrite-strings:                        Warning Options.    (line 1394)
! * Wzero-as-null-pointer-constant:        Warning Options.    (line 1436)
  * x:                                     Overall Options.    (line  126)
+ * x <1>:                                 Preprocessor Options.
+                                                              (line  324)
  * Xassembler:                            Assembler Options.  (line   13)
  * Xbind-lazy:                            VxWorks Options.    (line   26)
  * Xbind-now:                             VxWorks Options.    (line   30)
! * Xlinker:                               Link Options.       (line  247)
  * Xpreprocessor:                         Preprocessor Options.
                                                               (line   25)
  * Ym:                                    System V Options.   (line   26)
  * YP:                                    System V Options.   (line   22)
! * z:                                     Link Options.       (line  278)
  
  
  File: gcc.info,  Node: Keyword Index,  Prev: Option Index,  Up: Top
*************** Keyword Index
*** 54861,55254 ****
  * #pragma interface:                     C++ Interface.      (line   17)
  * $:                                     Dollar Signs.       (line    6)
  * % in constraint:                       Modifiers.          (line   52)
! * %include:                              Spec Files.         (line   27)
! * %include_noerr:                        Spec Files.         (line   31)
! * %rename:                               Spec Files.         (line   35)
  * & in constraint:                       Modifiers.          (line   25)
  * ':                                     Incompatibilities.  (line  116)
! * *__builtin_alloca:                     Other Builtins.     (line  124)
! * *__builtin_alloca_with_align:          Other Builtins.     (line  163)
  * + in constraint:                       Modifiers.          (line   12)
  * -lgcc, use with -nodefaultlibs:        Link Options.       (line   91)
  * -lgcc, use with -nostdlib:             Link Options.       (line   91)
! * -march feature modifiers:              AArch64 Options.    (line  186)
! * -mcpu feature modifiers:               AArch64 Options.    (line  186)
  * -nodefaultlibs and unresolved references: Link Options.    (line   91)
  * -nostdlib and unresolved references:   Link Options.       (line   91)
  * .sdata/.sdata2 references (PowerPC):   RS/6000 and PowerPC Options.
!                                                              (line  809)
  * //:                                    C++ Comments.       (line    6)
! * 0 in constraint:                       Simple Constraints. (line  127)
! * < in constraint:                       Simple Constraints. (line   48)
  * = in constraint:                       Modifiers.          (line    8)
! * > in constraint:                       Simple Constraints. (line   61)
  * ?: extensions:                         Conditionals.       (line    6)
  * ?: side effect:                        Conditionals.       (line   20)
  * _ in variables in macros:              Typeof.             (line   46)
! * __atomic_add_fetch:                    __atomic Builtins.  (line  194)
! * __atomic_always_lock_free:             __atomic Builtins.  (line  281)
! * __atomic_and_fetch:                    __atomic Builtins.  (line  198)
! * __atomic_clear:                        __atomic Builtins.  (line  255)
! * __atomic_compare_exchange:             __atomic Builtins.  (line  186)
! * __atomic_compare_exchange_n:           __atomic Builtins.  (line  161)
! * __atomic_exchange:                     __atomic Builtins.  (line  153)
! * __atomic_exchange_n:                   __atomic Builtins.  (line  142)
! * __atomic_fetch_add:                    __atomic Builtins.  (line  219)
! * __atomic_fetch_and:                    __atomic Builtins.  (line  223)
! * __atomic_fetch_nand:                   __atomic Builtins.  (line  229)
! * __atomic_fetch_or:                     __atomic Builtins.  (line  227)
! * __atomic_fetch_sub:                    __atomic Builtins.  (line  221)
! * __atomic_fetch_xor:                    __atomic Builtins.  (line  225)
! * __atomic_is_lock_free:                 __atomic Builtins.  (line  295)
! * __atomic_load:                         __atomic Builtins.  (line  121)
! * __atomic_load_n:                       __atomic Builtins.  (line  112)
! * __atomic_nand_fetch:                   __atomic Builtins.  (line  204)
! * __atomic_or_fetch:                     __atomic Builtins.  (line  202)
! * __atomic_signal_fence:                 __atomic Builtins.  (line  273)
! * __atomic_store:                        __atomic Builtins.  (line  136)
! * __atomic_store_n:                      __atomic Builtins.  (line  127)
! * __atomic_sub_fetch:                    __atomic Builtins.  (line  196)
! * __atomic_test_and_set:                 __atomic Builtins.  (line  244)
! * __atomic_thread_fence:                 __atomic Builtins.  (line  266)
! * __atomic_xor_fetch:                    __atomic Builtins.  (line  200)
! * __builtin___bnd_chk_ptr_bounds:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_chk_ptr_lbounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_chk_ptr_ubounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_copy_ptr_bounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_get_ptr_lbound:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_get_ptr_ubound:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_init_ptr_bounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_narrow_ptr_bounds:     Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_null_ptr_bounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_set_ptr_bounds:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_store_ptr_bounds:      Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___clear_cache:               Other Builtins.     (line  479)
! * __builtin___fprintf_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___memcpy_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___memmove_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___mempcpy_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___memset_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___printf_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___snprintf_chk:              Object Size Checking.
!                                                              (line    6)
! * __builtin___sprintf_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___stpcpy_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___strcat_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___strcpy_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___strncat_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___strncpy_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___vfprintf_chk:              Object Size Checking.
!                                                              (line    6)
! * __builtin___vprintf_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___vsnprintf_chk:             Object Size Checking.
!                                                              (line    6)
! * __builtin___vsprintf_chk:              Object Size Checking.
!                                                              (line    6)
  * __builtin_add_overflow:                Integer Overflow Builtins.
!                                                              (line   11)
  * __builtin_alloca:                      Other Builtins.     (line    6)
  * __builtin_alloca_with_align:           Other Builtins.     (line    6)
! * __builtin_apply:                       Constructing Calls. (line   31)
! * __builtin_apply_args:                  Constructing Calls. (line   20)
  * __builtin_arc_aligned:                 ARC Built-in Functions.
!                                                              (line   20)
  * __builtin_arc_brk:                     ARC Built-in Functions.
!                                                              (line   29)
  * __builtin_arc_core_read:               ARC Built-in Functions.
!                                                              (line   34)
  * __builtin_arc_core_write:              ARC Built-in Functions.
!                                                              (line   41)
  * __builtin_arc_divaw:                   ARC Built-in Functions.
!                                                              (line   47)
  * __builtin_arc_flag:                    ARC Built-in Functions.
!                                                              (line   54)
  * __builtin_arc_lr:                      ARC Built-in Functions.
!                                                              (line   58)
  * __builtin_arc_mul64:                   ARC Built-in Functions.
!                                                              (line   65)
  * __builtin_arc_mulu64:                  ARC Built-in Functions.
!                                                              (line   70)
  * __builtin_arc_nop:                     ARC Built-in Functions.
!                                                              (line   74)
  * __builtin_arc_norm:                    ARC Built-in Functions.
!                                                              (line   78)
  * __builtin_arc_normw:                   ARC Built-in Functions.
!                                                              (line   85)
  * __builtin_arc_rtie:                    ARC Built-in Functions.
!                                                              (line   92)
  * __builtin_arc_sleep:                   ARC Built-in Functions.
!                                                              (line   96)
  * __builtin_arc_sr:                      ARC Built-in Functions.
!                                                              (line  101)
  * __builtin_arc_swap:                    ARC Built-in Functions.
!                                                              (line  107)
  * __builtin_arc_swi:                     ARC Built-in Functions.
!                                                              (line  113)
  * __builtin_arc_sync:                    ARC Built-in Functions.
!                                                              (line  117)
  * __builtin_arc_trap_s:                  ARC Built-in Functions.
!                                                              (line  121)
  * __builtin_arc_unimp_s:                 ARC Built-in Functions.
!                                                              (line  125)
! * __builtin_assume_aligned:              Other Builtins.     (line  444)
! * __builtin_bswap16:                     Other Builtins.     (line  710)
! * __builtin_bswap32:                     Other Builtins.     (line  714)
! * __builtin_bswap64:                     Other Builtins.     (line  718)
  * __builtin_call_with_static_chain:      Other Builtins.     (line    6)
! * __builtin_choose_expr:                 Other Builtins.     (line  266)
! * __builtin_clrsb:                       Other Builtins.     (line  640)
! * __builtin_clrsbl:                      Other Builtins.     (line  662)
! * __builtin_clrsbll:                     Other Builtins.     (line  685)
! * __builtin_clz:                         Other Builtins.     (line  632)
! * __builtin_clzl:                        Other Builtins.     (line  654)
! * __builtin_clzll:                       Other Builtins.     (line  677)
! * __builtin_complex:                     Other Builtins.     (line  306)
! * __builtin_constant_p:                  Other Builtins.     (line  316)
! * __builtin_cpu_init <1>:                x86 Built-in Functions.
!                                                              (line   63)
  * __builtin_cpu_init:                    PowerPC Built-in Functions.
!                                                              (line   10)
! * __builtin_cpu_is <1>:                  x86 Built-in Functions.
!                                                              (line   92)
  * __builtin_cpu_is:                      PowerPC Built-in Functions.
!                                                              (line   14)
! * __builtin_cpu_supports <1>:            x86 Built-in Functions.
!                                                              (line  167)
  * __builtin_cpu_supports:                PowerPC Built-in Functions.
!                                                              (line   74)
! * __builtin_ctz:                         Other Builtins.     (line  636)
! * __builtin_ctzl:                        Other Builtins.     (line  658)
! * __builtin_ctzll:                       Other Builtins.     (line  681)
! * __builtin_expect:                      Other Builtins.     (line  362)
! * __builtin_extract_return_addr:         Return Address.     (line   39)
! * __builtin_ffs:                         Other Builtins.     (line  628)
! * __builtin_ffsl:                        Other Builtins.     (line  651)
! * __builtin_ffsll:                       Other Builtins.     (line  673)
! * __builtin_FILE:                        Other Builtins.     (line  472)
  * __builtin_fpclassify:                  Other Builtins.     (line    6)
! * __builtin_frame_address:               Return Address.     (line   52)
! * __builtin_frob_return_address:         Return Address.     (line   48)
! * __builtin_FUNCTION:                    Other Builtins.     (line  467)
! * __builtin_huge_val:                    Other Builtins.     (line  530)
! * __builtin_huge_valf:                   Other Builtins.     (line  535)
! * __builtin_huge_vall:                   Other Builtins.     (line  538)
  * __builtin_huge_valq <1>:               x86 Built-in Functions.
                                                               (line   57)
! * __builtin_huge_valq:                   PowerPC Built-in Functions.
!                                                              (line  250)
! * __builtin_inf:                         Other Builtins.     (line  553)
! * __builtin_infd128:                     Other Builtins.     (line  563)
! * __builtin_infd32:                      Other Builtins.     (line  557)
! * __builtin_infd64:                      Other Builtins.     (line  560)
! * __builtin_inff:                        Other Builtins.     (line  567)
! * __builtin_infl:                        Other Builtins.     (line  572)
! * __builtin_infq <1>:                    x86 Built-in Functions.
!                                                              (line   53)
  * __builtin_infq:                        PowerPC Built-in Functions.
!                                                              (line  246)
  * __builtin_isfinite:                    Other Builtins.     (line    6)
  * __builtin_isgreater:                   Other Builtins.     (line    6)
  * __builtin_isgreaterequal:              Other Builtins.     (line    6)
  * __builtin_isinf_sign:                  Other Builtins.     (line    6)
  * __builtin_isless:                      Other Builtins.     (line    6)
  * __builtin_islessequal:                 Other Builtins.     (line    6)
  * __builtin_islessgreater:               Other Builtins.     (line    6)
  * __builtin_isnormal:                    Other Builtins.     (line    6)
  * __builtin_isunordered:                 Other Builtins.     (line    6)
! * __builtin_LINE:                        Other Builtins.     (line  461)
  * __builtin_mul_overflow:                Integer Overflow Builtins.
!                                                              (line   65)
! * __builtin_nan:                         Other Builtins.     (line  584)
! * __builtin_nand128:                     Other Builtins.     (line  606)
! * __builtin_nand32:                      Other Builtins.     (line  600)
! * __builtin_nand64:                      Other Builtins.     (line  603)
! * __builtin_nanf:                        Other Builtins.     (line  610)
! * __builtin_nanl:                        Other Builtins.     (line  613)
  * __builtin_nanq:                        PowerPC Built-in Functions.
!                                                              (line  253)
! * __builtin_nans:                        Other Builtins.     (line  617)
! * __builtin_nansf:                       Other Builtins.     (line  621)
! * __builtin_nansl:                       Other Builtins.     (line  624)
  * __builtin_nansq:                       PowerPC Built-in Functions.
!                                                              (line  257)
  * __builtin_nds32_isb:                   NDS32 Built-in Functions.
!                                                              (line   13)
  * __builtin_nds32_isync:                 NDS32 Built-in Functions.
!                                                              (line    9)
  * __builtin_nds32_mfsr:                  NDS32 Built-in Functions.
!                                                              (line   16)
  * __builtin_nds32_mfusr:                 NDS32 Built-in Functions.
!                                                              (line   19)
  * __builtin_nds32_mtsr:                  NDS32 Built-in Functions.
!                                                              (line   22)
  * __builtin_nds32_mtusr:                 NDS32 Built-in Functions.
!                                                              (line   25)
  * __builtin_nds32_setgie_dis:            NDS32 Built-in Functions.
!                                                              (line   31)
  * __builtin_nds32_setgie_en:             NDS32 Built-in Functions.
!                                                              (line   28)
  * __builtin_non_tx_store:                S/390 System z Built-in Functions.
!                                                              (line  104)
  * __builtin_object_size:                 Object Size Checking.
                                                               (line    6)
  * __builtin_offsetof:                    Offsetof.           (line    6)
! * __builtin_parity:                      Other Builtins.     (line  648)
! * __builtin_parityl:                     Other Builtins.     (line  669)
! * __builtin_parityll:                    Other Builtins.     (line  693)
! * __builtin_popcount:                    Other Builtins.     (line  645)
! * __builtin_popcountl:                   Other Builtins.     (line  665)
! * __builtin_popcountll:                  Other Builtins.     (line  689)
  * __builtin_powi:                        Other Builtins.     (line    6)
  * __builtin_powif:                       Other Builtins.     (line    6)
  * __builtin_powil:                       Other Builtins.     (line    6)
! * __builtin_prefetch:                    Other Builtins.     (line  491)
! * __builtin_return:                      Constructing Calls. (line   48)
! * __builtin_return_address:              Return Address.     (line   11)
  * __builtin_rx_brk:                      RX Built-in Functions.
!                                                              (line   11)
  * __builtin_rx_clrpsw:                   RX Built-in Functions.
!                                                              (line   14)
  * __builtin_rx_int:                      RX Built-in Functions.
!                                                              (line   18)
  * __builtin_rx_machi:                    RX Built-in Functions.
!                                                              (line   22)
  * __builtin_rx_maclo:                    RX Built-in Functions.
!                                                              (line   27)
  * __builtin_rx_mulhi:                    RX Built-in Functions.
!                                                              (line   32)
  * __builtin_rx_mullo:                    RX Built-in Functions.
!                                                              (line   37)
  * __builtin_rx_mvfachi:                  RX Built-in Functions.
!                                                              (line   42)
  * __builtin_rx_mvfacmi:                  RX Built-in Functions.
!                                                              (line   46)
  * __builtin_rx_mvfc:                     RX Built-in Functions.
!                                                              (line   50)
  * __builtin_rx_mvtachi:                  RX Built-in Functions.
!                                                              (line   54)
  * __builtin_rx_mvtaclo:                  RX Built-in Functions.
!                                                              (line   58)
  * __builtin_rx_mvtc:                     RX Built-in Functions.
!                                                              (line   62)
  * __builtin_rx_mvtipl:                   RX Built-in Functions.
!                                                              (line   66)
  * __builtin_rx_racw:                     RX Built-in Functions.
!                                                              (line   70)
  * __builtin_rx_revw:                     RX Built-in Functions.
!                                                              (line   74)
  * __builtin_rx_rmpa:                     RX Built-in Functions.
!                                                              (line   79)
  * __builtin_rx_round:                    RX Built-in Functions.
!                                                              (line   83)
  * __builtin_rx_sat:                      RX Built-in Functions.
!                                                              (line   88)
  * __builtin_rx_setpsw:                   RX Built-in Functions.
!                                                              (line   92)
  * __builtin_rx_wait:                     RX Built-in Functions.
!                                                              (line   96)
! * __builtin_sadd_overflow:               Integer Overflow Builtins.
!                                                              (line   13)
! * __builtin_saddl_overflow:              Integer Overflow Builtins.
!                                                              (line   15)
  * __builtin_saddll_overflow:             Integer Overflow Builtins.
!                                                              (line   17)
  * __builtin_set_thread_pointer:          SH Built-in Functions.
!                                                              (line   10)
  * __builtin_sh_get_fpscr:                SH Built-in Functions.
!                                                              (line   36)
  * __builtin_sh_set_fpscr:                SH Built-in Functions.
!                                                              (line   39)
! * __builtin_smul_overflow:               Integer Overflow Builtins.
!                                                              (line   67)
! * __builtin_smull_overflow:              Integer Overflow Builtins.
!                                                              (line   69)
  * __builtin_smulll_overflow:             Integer Overflow Builtins.
!                                                              (line   71)
! * __builtin_ssub_overflow:               Integer Overflow Builtins.
!                                                              (line   46)
! * __builtin_ssubl_overflow:              Integer Overflow Builtins.
!                                                              (line   48)
  * __builtin_ssubll_overflow:             Integer Overflow Builtins.
!                                                              (line   50)
! * __builtin_sub_overflow:                Integer Overflow Builtins.
                                                               (line   44)
  * __builtin_tabort:                      S/390 System z Built-in Functions.
!                                                              (line   87)
  * __builtin_tbegin:                      S/390 System z Built-in Functions.
!                                                              (line    7)
  * __builtin_tbegin_nofloat:              S/390 System z Built-in Functions.
!                                                              (line   59)
  * __builtin_tbegin_retry:                S/390 System z Built-in Functions.
!                                                              (line   65)
  * __builtin_tbegin_retry_nofloat:        S/390 System z Built-in Functions.
!                                                              (line   72)
! * __builtin_tbeginc:                     S/390 System z Built-in Functions.
!                                                              (line   78)
  * __builtin_tend:                        S/390 System z Built-in Functions.
!                                                              (line   82)
  * __builtin_thread_pointer:              SH Built-in Functions.
!                                                              (line   20)
! * __builtin_trap:                        Other Builtins.     (line  386)
  * __builtin_tx_assist:                   S/390 System z Built-in Functions.
!                                                              (line   92)
  * __builtin_tx_nesting_depth:            S/390 System z Built-in Functions.
!                                                              (line   98)
! * __builtin_types_compatible_p:          Other Builtins.     (line  209)
! * __builtin_uadd_overflow:               Integer Overflow Builtins.
!                                                              (line   19)
! * __builtin_uaddl_overflow:              Integer Overflow Builtins.
!                                                              (line   21)
  * __builtin_uaddll_overflow:             Integer Overflow Builtins.
!                                                              (line   24)
! * __builtin_umul_overflow:               Integer Overflow Builtins.
!                                                              (line   73)
! * __builtin_umull_overflow:              Integer Overflow Builtins.
!                                                              (line   75)
  * __builtin_umulll_overflow:             Integer Overflow Builtins.
!                                                              (line   78)
! * __builtin_unreachable:                 Other Builtins.     (line  393)
! * __builtin_usub_overflow:               Integer Overflow Builtins.
!                                                              (line   52)
! * __builtin_usubl_overflow:              Integer Overflow Builtins.
!                                                              (line   54)
  * __builtin_usubll_overflow:             Integer Overflow Builtins.
!                                                              (line   57)
! * __builtin_va_arg_pack:                 Constructing Calls. (line   53)
! * __builtin_va_arg_pack_len:             Constructing Calls. (line   76)
  * __complex__ keyword:                   Complex.            (line    6)
  * __declspec(dllexport):                 Microsoft Windows Function Attributes.
                                                               (line   10)
  * __declspec(dllimport):                 Microsoft Windows Function Attributes.
!                                                              (line   44)
  * __ea SPU Named Address Spaces:         Named Address Spaces.
                                                               (line  155)
  * __extension__:                         Alternate Keywords. (line   30)
  * __far M32C Named Address Spaces:       Named Address Spaces.
!                                                              (line  139)
  * __far RL78 Named Address Spaces:       Named Address Spaces.
                                                               (line  147)
  * __flash AVR Named Address Spaces:      Named Address Spaces.
--- 54453,54897 ----
  * #pragma interface:                     C++ Interface.      (line   17)
  * $:                                     Dollar Signs.       (line    6)
  * % in constraint:                       Modifiers.          (line   52)
! * %include:                              Spec Files.         (line   26)
! * %include_noerr:                        Spec Files.         (line   30)
! * %rename:                               Spec Files.         (line   34)
  * & in constraint:                       Modifiers.          (line   25)
  * ':                                     Incompatibilities.  (line  116)
! * *__builtin_alloca:                     Other Builtins.     (line  123)
! * *__builtin_alloca_with_align:          Other Builtins.     (line  160)
  * + in constraint:                       Modifiers.          (line   12)
  * -lgcc, use with -nodefaultlibs:        Link Options.       (line   91)
  * -lgcc, use with -nostdlib:             Link Options.       (line   91)
! * -march feature modifiers:              AArch64 Options.    (line  184)
! * -mcpu feature modifiers:               AArch64 Options.    (line  184)
  * -nodefaultlibs and unresolved references: Link Options.    (line   91)
  * -nostdlib and unresolved references:   Link Options.       (line   91)
  * .sdata/.sdata2 references (PowerPC):   RS/6000 and PowerPC Options.
!                                                              (line  811)
  * //:                                    C++ Comments.       (line    6)
! * 0 in constraint:                       Simple Constraints. (line  125)
! * < in constraint:                       Simple Constraints. (line   47)
  * = in constraint:                       Modifiers.          (line    8)
! * > in constraint:                       Simple Constraints. (line   59)
  * ?: extensions:                         Conditionals.       (line    6)
  * ?: side effect:                        Conditionals.       (line   20)
  * _ in variables in macros:              Typeof.             (line   46)
! * _Accum data type:                      Fixed-Point.        (line    6)
! * _Complex keyword:                      Complex.            (line    6)
! * _Decimal128 data type:                 Decimal Float.      (line    6)
! * _Decimal32 data type:                  Decimal Float.      (line    6)
! * _Decimal64 data type:                  Decimal Float.      (line    6)
! * _Exit:                                 Other Builtins.     (line    6)
! * _exit:                                 Other Builtins.     (line    6)
! * _Fract data type:                      Fixed-Point.        (line    6)
! * _HTM_FIRST_USER_ABORT_CODE:            S/390 System z Built-in Functions.
!                                                              (line   44)
! * _Sat data type:                        Fixed-Point.        (line    6)
! * _xabort:                               x86 transactional memory intrinsics.
!                                                              (line   57)
! * _xbegin:                               x86 transactional memory intrinsics.
!                                                              (line   19)
! * _xend:                                 x86 transactional memory intrinsics.
!                                                              (line   48)
! * _xtest:                                x86 transactional memory intrinsics.
!                                                              (line   53)
! * __atomic_add_fetch:                    __atomic Builtins.  (line  179)
! * __atomic_always_lock_free:             __atomic Builtins.  (line  265)
! * __atomic_and_fetch:                    __atomic Builtins.  (line  183)
! * __atomic_clear:                        __atomic Builtins.  (line  239)
! * __atomic_compare_exchange:             __atomic Builtins.  (line  171)
! * __atomic_compare_exchange_n:           __atomic Builtins.  (line  147)
! * __atomic_exchange:                     __atomic Builtins.  (line  141)
! * __atomic_exchange_n:                   __atomic Builtins.  (line  131)
! * __atomic_fetch_add:                    __atomic Builtins.  (line  203)
! * __atomic_fetch_and:                    __atomic Builtins.  (line  207)
! * __atomic_fetch_nand:                   __atomic Builtins.  (line  213)
! * __atomic_fetch_or:                     __atomic Builtins.  (line  211)
! * __atomic_fetch_sub:                    __atomic Builtins.  (line  205)
! * __atomic_fetch_xor:                    __atomic Builtins.  (line  209)
! * __atomic_is_lock_free:                 __atomic Builtins.  (line  279)
! * __atomic_load:                         __atomic Builtins.  (line  113)
! * __atomic_load_n:                       __atomic Builtins.  (line  106)
! * __atomic_nand_fetch:                   __atomic Builtins.  (line  189)
! * __atomic_or_fetch:                     __atomic Builtins.  (line  187)
! * __atomic_signal_fence:                 __atomic Builtins.  (line  258)
! * __atomic_store:                        __atomic Builtins.  (line  126)
! * __atomic_store_n:                      __atomic Builtins.  (line  118)
! * __atomic_sub_fetch:                    __atomic Builtins.  (line  181)
! * __atomic_test_and_set:                 __atomic Builtins.  (line  227)
! * __atomic_thread_fence:                 __atomic Builtins.  (line  251)
! * __atomic_xor_fetch:                    __atomic Builtins.  (line  185)
  * __builtin_add_overflow:                Integer Overflow Builtins.
!                                                              (line    9)
  * __builtin_alloca:                      Other Builtins.     (line    6)
  * __builtin_alloca_with_align:           Other Builtins.     (line    6)
! * __builtin_apply:                       Constructing Calls. (line   29)
! * __builtin_apply_args:                  Constructing Calls. (line   19)
  * __builtin_arc_aligned:                 ARC Built-in Functions.
!                                                              (line   18)
  * __builtin_arc_brk:                     ARC Built-in Functions.
!                                                              (line   28)
  * __builtin_arc_core_read:               ARC Built-in Functions.
!                                                              (line   32)
  * __builtin_arc_core_write:              ARC Built-in Functions.
!                                                              (line   39)
  * __builtin_arc_divaw:                   ARC Built-in Functions.
!                                                              (line   46)
  * __builtin_arc_flag:                    ARC Built-in Functions.
!                                                              (line   53)
  * __builtin_arc_lr:                      ARC Built-in Functions.
!                                                              (line   57)
  * __builtin_arc_mul64:                   ARC Built-in Functions.
!                                                              (line   64)
  * __builtin_arc_mulu64:                  ARC Built-in Functions.
!                                                              (line   68)
  * __builtin_arc_nop:                     ARC Built-in Functions.
!                                                              (line   73)
  * __builtin_arc_norm:                    ARC Built-in Functions.
!                                                              (line   77)
  * __builtin_arc_normw:                   ARC Built-in Functions.
!                                                              (line   84)
  * __builtin_arc_rtie:                    ARC Built-in Functions.
!                                                              (line   91)
  * __builtin_arc_sleep:                   ARC Built-in Functions.
!                                                              (line   95)
  * __builtin_arc_sr:                      ARC Built-in Functions.
!                                                              (line   99)
  * __builtin_arc_swap:                    ARC Built-in Functions.
!                                                              (line  106)
  * __builtin_arc_swi:                     ARC Built-in Functions.
!                                                              (line  112)
  * __builtin_arc_sync:                    ARC Built-in Functions.
!                                                              (line  116)
  * __builtin_arc_trap_s:                  ARC Built-in Functions.
!                                                              (line  120)
  * __builtin_arc_unimp_s:                 ARC Built-in Functions.
!                                                              (line  124)
! * __builtin_assume_aligned:              Other Builtins.     (line  435)
! * __builtin_bswap16:                     Other Builtins.     (line  702)
! * __builtin_bswap32:                     Other Builtins.     (line  706)
! * __builtin_bswap64:                     Other Builtins.     (line  710)
  * __builtin_call_with_static_chain:      Other Builtins.     (line    6)
! * __builtin_call_with_static_chain <1>:  Other Builtins.     (line  250)
! * __builtin_choose_expr:                 Other Builtins.     (line  261)
! * __builtin_clrsb:                       Other Builtins.     (line  632)
! * __builtin_clrsbl:                      Other Builtins.     (line  654)
! * __builtin_clrsbll:                     Other Builtins.     (line  677)
! * __builtin_clz:                         Other Builtins.     (line  624)
! * __builtin_clzl:                        Other Builtins.     (line  646)
! * __builtin_clzll:                       Other Builtins.     (line  669)
! * __builtin_complex:                     Other Builtins.     (line  301)
! * __builtin_constant_p:                  Other Builtins.     (line  310)
  * __builtin_cpu_init:                    PowerPC Built-in Functions.
!                                                              (line    9)
! * __builtin_cpu_init <1>:                PowerPC Built-in Functions.
!                                                              (line   13)
! * __builtin_cpu_init <2>:                x86 Built-in Functions.
!                                                              (line   62)
  * __builtin_cpu_is:                      PowerPC Built-in Functions.
!                                                              (line   17)
! * __builtin_cpu_is <1>:                  x86 Built-in Functions.
!                                                              (line   90)
  * __builtin_cpu_supports:                PowerPC Built-in Functions.
!                                                              (line   75)
! * __builtin_cpu_supports <1>:            x86 Built-in Functions.
!                                                              (line  168)
! * __builtin_ctz:                         Other Builtins.     (line  628)
! * __builtin_ctzl:                        Other Builtins.     (line  650)
! * __builtin_ctzll:                       Other Builtins.     (line  673)
! * __builtin_expect:                      Other Builtins.     (line  355)
! * __builtin_extract_return_addr:         Return Address.     (line   38)
! * __builtin_ffs:                         Other Builtins.     (line  620)
! * __builtin_ffsl:                        Other Builtins.     (line  643)
! * __builtin_ffsll:                       Other Builtins.     (line  665)
! * __builtin_FILE:                        Other Builtins.     (line  464)
  * __builtin_fpclassify:                  Other Builtins.     (line    6)
! * __builtin_fpclassify <1>:              Other Builtins.     (line  534)
! * __builtin_frame_address:               Return Address.     (line   50)
! * __builtin_frob_return_address:         Return Address.     (line   47)
! * __builtin_FUNCTION:                    Other Builtins.     (line  459)
! * __builtin_huge_val:                    Other Builtins.     (line  522)
! * __builtin_huge_valf:                   Other Builtins.     (line  527)
! * __builtin_huge_vall:                   Other Builtins.     (line  530)
! * __builtin_huge_valq:                   PowerPC Built-in Functions.
!                                                              (line  227)
  * __builtin_huge_valq <1>:               x86 Built-in Functions.
                                                               (line   57)
! * __builtin_inf:                         Other Builtins.     (line  545)
! * __builtin_infd128:                     Other Builtins.     (line  555)
! * __builtin_infd32:                      Other Builtins.     (line  549)
! * __builtin_infd64:                      Other Builtins.     (line  552)
! * __builtin_inff:                        Other Builtins.     (line  559)
! * __builtin_infl:                        Other Builtins.     (line  564)
  * __builtin_infq:                        PowerPC Built-in Functions.
!                                                              (line  224)
! * __builtin_infq <1>:                    x86 Built-in Functions.
!                                                              (line   54)
  * __builtin_isfinite:                    Other Builtins.     (line    6)
  * __builtin_isgreater:                   Other Builtins.     (line    6)
  * __builtin_isgreaterequal:              Other Builtins.     (line    6)
  * __builtin_isinf_sign:                  Other Builtins.     (line    6)
+ * __builtin_isinf_sign <1>:              Other Builtins.     (line  568)
  * __builtin_isless:                      Other Builtins.     (line    6)
  * __builtin_islessequal:                 Other Builtins.     (line    6)
  * __builtin_islessgreater:               Other Builtins.     (line    6)
  * __builtin_isnormal:                    Other Builtins.     (line    6)
  * __builtin_isunordered:                 Other Builtins.     (line    6)
! * __builtin_LINE:                        Other Builtins.     (line  453)
  * __builtin_mul_overflow:                Integer Overflow Builtins.
!                                                              (line   62)
! * __builtin_nan:                         Other Builtins.     (line  576)
! * __builtin_nand128:                     Other Builtins.     (line  598)
! * __builtin_nand32:                      Other Builtins.     (line  592)
! * __builtin_nand64:                      Other Builtins.     (line  595)
! * __builtin_nanf:                        Other Builtins.     (line  602)
! * __builtin_nanl:                        Other Builtins.     (line  605)
  * __builtin_nanq:                        PowerPC Built-in Functions.
!                                                              (line  231)
! * __builtin_nans:                        Other Builtins.     (line  609)
! * __builtin_nansf:                       Other Builtins.     (line  613)
! * __builtin_nansl:                       Other Builtins.     (line  616)
  * __builtin_nansq:                       PowerPC Built-in Functions.
!                                                              (line  234)
  * __builtin_nds32_isb:                   NDS32 Built-in Functions.
!                                                              (line   12)
  * __builtin_nds32_isync:                 NDS32 Built-in Functions.
!                                                              (line    8)
  * __builtin_nds32_mfsr:                  NDS32 Built-in Functions.
!                                                              (line   15)
  * __builtin_nds32_mfusr:                 NDS32 Built-in Functions.
!                                                              (line   18)
  * __builtin_nds32_mtsr:                  NDS32 Built-in Functions.
!                                                              (line   21)
  * __builtin_nds32_mtusr:                 NDS32 Built-in Functions.
!                                                              (line   24)
  * __builtin_nds32_setgie_dis:            NDS32 Built-in Functions.
!                                                              (line   30)
  * __builtin_nds32_setgie_en:             NDS32 Built-in Functions.
!                                                              (line   27)
  * __builtin_non_tx_store:                S/390 System z Built-in Functions.
!                                                              (line   98)
  * __builtin_object_size:                 Object Size Checking.
                                                               (line    6)
+ * __builtin_object_size <1>:             Object Size Checking.
+                                                              (line    9)
  * __builtin_offsetof:                    Offsetof.           (line    6)
! * __builtin_parity:                      Other Builtins.     (line  640)
! * __builtin_parityl:                     Other Builtins.     (line  661)
! * __builtin_parityll:                    Other Builtins.     (line  685)
! * __builtin_popcount:                    Other Builtins.     (line  637)
! * __builtin_popcountl:                   Other Builtins.     (line  657)
! * __builtin_popcountll:                  Other Builtins.     (line  681)
  * __builtin_powi:                        Other Builtins.     (line    6)
+ * __builtin_powi <1>:                    Other Builtins.     (line  689)
  * __builtin_powif:                       Other Builtins.     (line    6)
+ * __builtin_powif <1>:                   Other Builtins.     (line  694)
  * __builtin_powil:                       Other Builtins.     (line    6)
! * __builtin_powil <1>:                   Other Builtins.     (line  698)
! * __builtin_prefetch:                    Other Builtins.     (line  483)
! * __builtin_return:                      Constructing Calls. (line   47)
! * __builtin_return_address:              Return Address.     (line    9)
  * __builtin_rx_brk:                      RX Built-in Functions.
!                                                              (line   10)
  * __builtin_rx_clrpsw:                   RX Built-in Functions.
!                                                              (line   13)
  * __builtin_rx_int:                      RX Built-in Functions.
!                                                              (line   17)
  * __builtin_rx_machi:                    RX Built-in Functions.
!                                                              (line   21)
  * __builtin_rx_maclo:                    RX Built-in Functions.
!                                                              (line   26)
  * __builtin_rx_mulhi:                    RX Built-in Functions.
!                                                              (line   31)
  * __builtin_rx_mullo:                    RX Built-in Functions.
!                                                              (line   36)
  * __builtin_rx_mvfachi:                  RX Built-in Functions.
!                                                              (line   41)
  * __builtin_rx_mvfacmi:                  RX Built-in Functions.
!                                                              (line   45)
  * __builtin_rx_mvfc:                     RX Built-in Functions.
!                                                              (line   49)
  * __builtin_rx_mvtachi:                  RX Built-in Functions.
!                                                              (line   53)
  * __builtin_rx_mvtaclo:                  RX Built-in Functions.
!                                                              (line   57)
  * __builtin_rx_mvtc:                     RX Built-in Functions.
!                                                              (line   61)
  * __builtin_rx_mvtipl:                   RX Built-in Functions.
!                                                              (line   65)
  * __builtin_rx_racw:                     RX Built-in Functions.
!                                                              (line   69)
  * __builtin_rx_revw:                     RX Built-in Functions.
!                                                              (line   73)
  * __builtin_rx_rmpa:                     RX Built-in Functions.
!                                                              (line   78)
  * __builtin_rx_round:                    RX Built-in Functions.
!                                                              (line   82)
  * __builtin_rx_sat:                      RX Built-in Functions.
!                                                              (line   87)
  * __builtin_rx_setpsw:                   RX Built-in Functions.
!                                                              (line   91)
  * __builtin_rx_wait:                     RX Built-in Functions.
!                                                              (line   95)
  * __builtin_saddll_overflow:             Integer Overflow Builtins.
!                                                              (line   15)
! * __builtin_saddl_overflow:              Integer Overflow Builtins.
!                                                              (line   13)
! * __builtin_sadd_overflow:               Integer Overflow Builtins.
!                                                              (line   11)
  * __builtin_set_thread_pointer:          SH Built-in Functions.
!                                                              (line    9)
  * __builtin_sh_get_fpscr:                SH Built-in Functions.
!                                                              (line   35)
  * __builtin_sh_set_fpscr:                SH Built-in Functions.
!                                                              (line   38)
  * __builtin_smulll_overflow:             Integer Overflow Builtins.
!                                                              (line   68)
! * __builtin_smull_overflow:              Integer Overflow Builtins.
!                                                              (line   66)
! * __builtin_smul_overflow:               Integer Overflow Builtins.
!                                                              (line   64)
  * __builtin_ssubll_overflow:             Integer Overflow Builtins.
!                                                              (line   48)
! * __builtin_ssubl_overflow:              Integer Overflow Builtins.
!                                                              (line   46)
! * __builtin_ssub_overflow:               Integer Overflow Builtins.
                                                               (line   44)
+ * __builtin_sub_overflow:                Integer Overflow Builtins.
+                                                              (line   42)
  * __builtin_tabort:                      S/390 System z Built-in Functions.
!                                                              (line   82)
  * __builtin_tbegin:                      S/390 System z Built-in Functions.
!                                                              (line    6)
! * __builtin_tbeginc:                     S/390 System z Built-in Functions.
!                                                              (line   73)
  * __builtin_tbegin_nofloat:              S/390 System z Built-in Functions.
!                                                              (line   54)
  * __builtin_tbegin_retry:                S/390 System z Built-in Functions.
!                                                              (line   60)
  * __builtin_tbegin_retry_nofloat:        S/390 System z Built-in Functions.
!                                                              (line   67)
  * __builtin_tend:                        S/390 System z Built-in Functions.
!                                                              (line   77)
  * __builtin_thread_pointer:              SH Built-in Functions.
!                                                              (line   18)
! * __builtin_trap:                        Other Builtins.     (line  379)
  * __builtin_tx_assist:                   S/390 System z Built-in Functions.
!                                                              (line   87)
  * __builtin_tx_nesting_depth:            S/390 System z Built-in Functions.
!                                                              (line   93)
! * __builtin_types_compatible_p:          Other Builtins.     (line  205)
  * __builtin_uaddll_overflow:             Integer Overflow Builtins.
!                                                              (line   21)
! * __builtin_uaddl_overflow:              Integer Overflow Builtins.
!                                                              (line   19)
! * __builtin_uadd_overflow:               Integer Overflow Builtins.
!                                                              (line   17)
  * __builtin_umulll_overflow:             Integer Overflow Builtins.
!                                                              (line   74)
! * __builtin_umull_overflow:              Integer Overflow Builtins.
!                                                              (line   72)
! * __builtin_umul_overflow:               Integer Overflow Builtins.
!                                                              (line   70)
! * __builtin_unreachable:                 Other Builtins.     (line  386)
  * __builtin_usubll_overflow:             Integer Overflow Builtins.
!                                                              (line   54)
! * __builtin_usubl_overflow:              Integer Overflow Builtins.
!                                                              (line   52)
! * __builtin_usub_overflow:               Integer Overflow Builtins.
!                                                              (line   50)
! * __builtin_va_arg_pack:                 Constructing Calls. (line   52)
! * __builtin_va_arg_pack_len:             Constructing Calls. (line   75)
! * __builtin___bnd_chk_ptr_bounds:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_chk_ptr_bounds <1>:    Pointer Bounds Checker builtins.
!                                                              (line  110)
! * __builtin___bnd_chk_ptr_lbounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_chk_ptr_lbounds <1>:   Pointer Bounds Checker builtins.
!                                                              (line   85)
! * __builtin___bnd_chk_ptr_ubounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_chk_ptr_ubounds <1>:   Pointer Bounds Checker builtins.
!                                                              (line  103)
! * __builtin___bnd_copy_ptr_bounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_copy_ptr_bounds <1>:   Pointer Bounds Checker builtins.
!                                                              (line   46)
! * __builtin___bnd_get_ptr_lbound:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_get_ptr_lbound <1>:    Pointer Bounds Checker builtins.
!                                                              (line  128)
! * __builtin___bnd_get_ptr_ubound:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_get_ptr_ubound <1>:    Pointer Bounds Checker builtins.
!                                                              (line  140)
! * __builtin___bnd_init_ptr_bounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_init_ptr_bounds <1>:   Pointer Bounds Checker builtins.
!                                                              (line   59)
! * __builtin___bnd_narrow_ptr_bounds:     Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_narrow_ptr_bounds <1>: Pointer Bounds Checker builtins.
!                                                              (line   27)
! * __builtin___bnd_null_ptr_bounds:       Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_null_ptr_bounds <1>:   Pointer Bounds Checker builtins.
!                                                              (line   67)
! * __builtin___bnd_set_ptr_bounds:        Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_set_ptr_bounds <1>:    Pointer Bounds Checker builtins.
!                                                              (line   12)
! * __builtin___bnd_store_ptr_bounds:      Pointer Bounds Checker builtins.
!                                                              (line    6)
! * __builtin___bnd_store_ptr_bounds <1>:  Pointer Bounds Checker builtins.
!                                                              (line   75)
! * __builtin___clear_cache:               Other Builtins.     (line  470)
! * __builtin___fprintf_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___memcpy_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___memmove_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___mempcpy_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___memset_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___printf_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___snprintf_chk:              Object Size Checking.
!                                                              (line    6)
! * __builtin___sprintf_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___stpcpy_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___strcat_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___strcpy_chk:                Object Size Checking.
!                                                              (line    6)
! * __builtin___strncat_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___strncpy_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___vfprintf_chk:              Object Size Checking.
!                                                              (line    6)
! * __builtin___vprintf_chk:               Object Size Checking.
!                                                              (line    6)
! * __builtin___vsnprintf_chk:             Object Size Checking.
!                                                              (line    6)
! * __builtin___vsprintf_chk:              Object Size Checking.
!                                                              (line    6)
  * __complex__ keyword:                   Complex.            (line    6)
  * __declspec(dllexport):                 Microsoft Windows Function Attributes.
                                                               (line   10)
  * __declspec(dllimport):                 Microsoft Windows Function Attributes.
!                                                              (line   42)
  * __ea SPU Named Address Spaces:         Named Address Spaces.
                                                               (line  155)
  * __extension__:                         Alternate Keywords. (line   30)
  * __far M32C Named Address Spaces:       Named Address Spaces.
!                                                              (line  138)
  * __far RL78 Named Address Spaces:       Named Address Spaces.
                                                               (line  147)
  * __flash AVR Named Address Spaces:      Named Address Spaces.
*************** Keyword Index
*** 55266,55273 ****
  * __float128 data type:                  Floating Types.     (line    6)
  * __float80 data type:                   Floating Types.     (line    6)
  * __fp16 data type:                      Half-Precision.     (line    6)
- * __func__ identifier:                   Function Names.     (line    6)
  * __FUNCTION__ identifier:               Function Names.     (line    6)
  * __ibm128 data type:                    Floating Types.     (line    6)
  * __imag__ keyword:                      Complex.            (line   27)
  * __int128 data types:                   __int128.           (line    6)
--- 54909,54916 ----
  * __float128 data type:                  Floating Types.     (line    6)
  * __float80 data type:                   Floating Types.     (line    6)
  * __fp16 data type:                      Half-Precision.     (line    6)
  * __FUNCTION__ identifier:               Function Names.     (line    6)
+ * __func__ identifier:                   Function Names.     (line    6)
  * __ibm128 data type:                    Floating Types.     (line    6)
  * __imag__ keyword:                      Complex.            (line   27)
  * __int128 data types:                   __int128.           (line    6)
*************** Keyword Index
*** 55298,55322 ****
  * __sync_val_compare_and_swap:           __sync Builtins.    (line   88)
  * __sync_xor_and_fetch:                  __sync Builtins.    (line   72)
  * __thread:                              Thread-Local.       (line    6)
- * _Accum data type:                      Fixed-Point.        (line    6)
- * _Complex keyword:                      Complex.            (line    6)
- * _Decimal128 data type:                 Decimal Float.      (line    6)
- * _Decimal32 data type:                  Decimal Float.      (line    6)
- * _Decimal64 data type:                  Decimal Float.      (line    6)
- * _exit:                                 Other Builtins.     (line    6)
- * _Exit:                                 Other Builtins.     (line    6)
- * _Fract data type:                      Fixed-Point.        (line    6)
- * _HTM_FIRST_USER_ABORT_CODE:            S/390 System z Built-in Functions.
-                                                              (line   48)
- * _Sat data type:                        Fixed-Point.        (line    6)
- * _xabort:                               x86 transactional memory intrinsics.
-                                                              (line   64)
- * _xbegin:                               x86 transactional memory intrinsics.
-                                                              (line   20)
- * _xend:                                 x86 transactional memory intrinsics.
-                                                              (line   55)
- * _xtest:                                x86 transactional memory intrinsics.
-                                                              (line   60)
  * AArch64 Options:                       AArch64 Options.    (line    6)
  * ABI:                                   Compatibility.      (line    6)
  * abi_tag function attribute:            C++ Attributes.     (line    9)
--- 54941,54946 ----
*************** Keyword Index
*** 55324,55331 ****
  * abi_tag variable attribute:            C++ Attributes.     (line    9)
  * abort:                                 Other Builtins.     (line    6)
  * abs:                                   Other Builtins.     (line    6)
- * accessing volatiles <1>:               C++ Volatiles.      (line    6)
  * accessing volatiles:                   Volatiles.          (line    6)
  * acos:                                  Other Builtins.     (line    6)
  * acosf:                                 Other Builtins.     (line    6)
  * acosh:                                 Other Builtins.     (line    6)
--- 54948,54955 ----
  * abi_tag variable attribute:            C++ Attributes.     (line    9)
  * abort:                                 Other Builtins.     (line    6)
  * abs:                                   Other Builtins.     (line    6)
  * accessing volatiles:                   Volatiles.          (line    6)
+ * accessing volatiles <1>:               C++ Volatiles.      (line    6)
  * acos:                                  Other Builtins.     (line    6)
  * acosf:                                 Other Builtins.     (line    6)
  * acosh:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 55333,55344 ****
  * acoshl:                                Other Builtins.     (line    6)
  * acosl:                                 Other Builtins.     (line    6)
  * Ada:                                   G++ and GCC.        (line    6)
  * additional floating types:             Floating Types.     (line    6)
! * address constraints:                   Simple Constraints. (line  154)
  * address of a label:                    Labels as Values.   (line    6)
  * address variable attribute, AVR:       AVR Variable Attributes.
                                                               (line   63)
! * address_operand:                       Simple Constraints. (line  158)
  * alias function attribute:              Common Function Attributes.
                                                               (line    9)
  * aligned function attribute:            Common Function Attributes.
--- 54957,54969 ----
  * acoshl:                                Other Builtins.     (line    6)
  * acosl:                                 Other Builtins.     (line    6)
  * Ada:                                   G++ and GCC.        (line    6)
+ * Ada <1>:                               G++ and GCC.        (line   30)
  * additional floating types:             Floating Types.     (line    6)
! * address constraints:                   Simple Constraints. (line  152)
  * address of a label:                    Labels as Values.   (line    6)
  * address variable attribute, AVR:       AVR Variable Attributes.
                                                               (line   63)
! * address_operand:                       Simple Constraints. (line  156)
  * alias function attribute:              Common Function Attributes.
                                                               (line    9)
  * aligned function attribute:            Common Function Attributes.
*************** Keyword Index
*** 55348,55359 ****
  * aligned variable attribute:            Common Variable Attributes.
                                                               (line    8)
  * alignment:                             Alignment.          (line    6)
  * alloc_align function attribute:        Common Function Attributes.
                                                               (line   43)
  * alloc_size function attribute:         Common Function Attributes.
                                                               (line   60)
- * alloca:                                Other Builtins.     (line    6)
- * alloca vs variable-length arrays:      Variable Length.    (line   35)
  * Allow nesting in an interrupt handler on the Blackfin processor: Blackfin Function Attributes.
                                                               (line   45)
  * Altera Nios II options:                Nios II Options.    (line    6)
--- 54973,54984 ----
  * aligned variable attribute:            Common Variable Attributes.
                                                               (line    8)
  * alignment:                             Alignment.          (line    6)
+ * alloca:                                Other Builtins.     (line    6)
+ * alloca vs variable-length arrays:      Variable Length.    (line   35)
  * alloc_align function attribute:        Common Function Attributes.
                                                               (line   43)
  * alloc_size function attribute:         Common Function Attributes.
                                                               (line   60)
  * Allow nesting in an interrupt handler on the Blackfin processor: Blackfin Function Attributes.
                                                               (line   45)
  * Altera Nios II options:                Nios II Options.    (line    6)
*************** Keyword Index
*** 55375,55383 ****
  * ARC options:                           ARC Options.        (line    6)
  * arch= function attribute, AArch64:     AArch64 Function Attributes.
                                                               (line   49)
  * ARM [Annotated C++ Reference Manual]:  Backwards Compatibility.
                                                               (line    6)
- * ARM options:                           ARM Options.        (line    6)
  * arrays of length zero:                 Zero Length.        (line    6)
  * arrays of variable length:             Variable Length.    (line    6)
  * arrays, non-lvalue:                    Subscripting.       (line    6)
--- 55000,55008 ----
  * ARC options:                           ARC Options.        (line    6)
  * arch= function attribute, AArch64:     AArch64 Function Attributes.
                                                               (line   49)
+ * ARM options:                           ARM Options.        (line    6)
  * ARM [Annotated C++ Reference Manual]:  Backwards Compatibility.
                                                               (line    6)
  * arrays of length zero:                 Zero Length.        (line    6)
  * arrays of variable length:             Variable Length.    (line    6)
  * arrays, non-lvalue:                    Subscripting.       (line    6)
*************** Keyword Index
*** 55389,55404 ****
  * asinhf:                                Other Builtins.     (line    6)
  * asinhl:                                Other Builtins.     (line    6)
  * asinl:                                 Other Builtins.     (line    6)
! * asm assembler template:                Extended Asm.       (line  219)
! * asm clobbers:                          Extended Asm.       (line  663)
  * asm constraints:                       Constraints.        (line    6)
! * asm expressions:                       Extended Asm.       (line  567)
! * asm flag output operands:              Extended Asm.       (line  482)
! * asm goto labels:                       Extended Asm.       (line  733)
! * asm input operands:                    Extended Asm.       (line  567)
  * asm keyword:                           Using Assembly Language with C.
                                                               (line    6)
! * asm output operands:                   Extended Asm.       (line  322)
  * asm volatile:                          Extended Asm.       (line  109)
  * assembler names for identifiers:       Asm Labels.         (line    6)
  * assembly code, invalid:                Bug Criteria.       (line   12)
--- 55014,55029 ----
  * asinhf:                                Other Builtins.     (line    6)
  * asinhl:                                Other Builtins.     (line    6)
  * asinl:                                 Other Builtins.     (line    6)
! * asm assembler template:                Extended Asm.       (line  218)
! * asm clobbers:                          Extended Asm.       (line  646)
  * asm constraints:                       Constraints.        (line    6)
! * asm expressions:                       Extended Asm.       (line  551)
! * asm flag output operands:              Extended Asm.       (line  480)
! * asm goto labels:                       Extended Asm.       (line  715)
! * asm input operands:                    Extended Asm.       (line  551)
  * asm keyword:                           Using Assembly Language with C.
                                                               (line    6)
! * asm output operands:                   Extended Asm.       (line  321)
  * asm volatile:                          Extended Asm.       (line  109)
  * assembler names for identifiers:       Asm Labels.         (line    6)
  * assembly code, invalid:                Bug Criteria.       (line   12)
*************** Keyword Index
*** 55457,55469 ****
  * bug criteria:                          Bug Criteria.       (line    6)
  * bugs:                                  Bugs.               (line    6)
  * bugs, known:                           Trouble.            (line    6)
  * built-in functions <1>:                Other Builtins.     (line    6)
- * built-in functions:                    C Dialect Options.  (line  212)
  * bzero:                                 Other Builtins.     (line    6)
  * C compilation options:                 Invoking GCC.       (line   18)
  * C intermediate output, nonexistent:    G++ and GCC.        (line   35)
  * C language extensions:                 C Extensions.       (line    6)
! * C language, traditional:               C Dialect Options.  (line  345)
  * C standard:                            Standards.          (line   13)
  * C standards:                           Standards.          (line   13)
  * c++:                                   Invoking G++.       (line   14)
--- 55082,55094 ----
  * bug criteria:                          Bug Criteria.       (line    6)
  * bugs:                                  Bugs.               (line    6)
  * bugs, known:                           Trouble.            (line    6)
+ * built-in functions:                    C Dialect Options.  (line  209)
  * built-in functions <1>:                Other Builtins.     (line    6)
  * bzero:                                 Other Builtins.     (line    6)
  * C compilation options:                 Invoking GCC.       (line   18)
  * C intermediate output, nonexistent:    G++ and GCC.        (line   35)
  * C language extensions:                 C Extensions.       (line    6)
! * C language, traditional:               C Dialect Options.  (line  346)
  * C standard:                            Standards.          (line   13)
  * C standards:                           Standards.          (line   13)
  * c++:                                   Invoking G++.       (line   14)
*************** Keyword Index
*** 55489,55496 ****
  * C95:                                   Standards.          (line   13)
  * C99:                                   Standards.          (line   13)
  * C9X:                                   Standards.          (line   13)
- * C_INCLUDE_PATH:                        Environment Variables.
-                                                              (line  130)
  * cabs:                                  Other Builtins.     (line    6)
  * cabsf:                                 Other Builtins.     (line    6)
  * cabsl:                                 Other Builtins.     (line    6)
--- 55114,55119 ----
*************** Keyword Index
*** 55501,55507 ****
  * cacoshl:                               Other Builtins.     (line    6)
  * cacosl:                                Other Builtins.     (line    6)
  * callee_pop_aggregate_return function attribute, x86: x86 Function Attributes.
!                                                              (line   46)
  * calling functions through the function vector on SH2A: SH Function Attributes.
                                                               (line    9)
  * calloc:                                Other Builtins.     (line    6)
--- 55124,55130 ----
  * cacoshl:                               Other Builtins.     (line    6)
  * cacosl:                                Other Builtins.     (line    6)
  * callee_pop_aggregate_return function attribute, x86: x86 Function Attributes.
!                                                              (line   47)
  * calling functions through the function vector on SH2A: SH Function Attributes.
                                                               (line    9)
  * calloc:                                Other Builtins.     (line    6)
*************** Keyword Index
*** 55526,55532 ****
  * catanhl:                               Other Builtins.     (line    6)
  * catanl:                                Other Builtins.     (line    6)
  * cb variable attribute, MeP:            MeP Variable Attributes.
!                                                              (line   48)
  * cbrt:                                  Other Builtins.     (line    6)
  * cbrtf:                                 Other Builtins.     (line    6)
  * cbrtl:                                 Other Builtins.     (line    6)
--- 55149,55155 ----
  * catanhl:                               Other Builtins.     (line    6)
  * catanl:                                Other Builtins.     (line    6)
  * cb variable attribute, MeP:            MeP Variable Attributes.
!                                                              (line   46)
  * cbrt:                                  Other Builtins.     (line    6)
  * cbrtf:                                 Other Builtins.     (line    6)
  * cbrtl:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 55548,55554 ****
                                                               (line  553)
  * character set, input:                  Preprocessor Options.
                                                               (line  566)
! * character set, input normalization:    Warning Options.    (line 1689)
  * character set, wide execution:         Preprocessor Options.
                                                               (line  558)
  * cimag:                                 Other Builtins.     (line    6)
--- 55171,55177 ----
                                                               (line  553)
  * character set, input:                  Preprocessor Options.
                                                               (line  566)
! * character set, input normalization:    Warning Options.    (line 1674)
  * character set, wide execution:         Preprocessor Options.
                                                               (line  558)
  * cimag:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 55573,55581 ****
  * command options:                       Invoking GCC.       (line    6)
  * comments, C++ style:                   C++ Comments.       (line    6)
  * common variable attribute:             Common Variable Attributes.
!                                                              (line   90)
  * comparison of signed and unsigned values, warning: Warning Options.
!                                                              (line 1501)
  * compilation statistics:                Developer Options.  (line    6)
  * compiler bugs, reporting:              Bug Reporting.      (line    6)
  * compiler compared to C++ preprocessor: G++ and GCC.        (line   35)
--- 55196,55204 ----
  * command options:                       Invoking GCC.       (line    6)
  * comments, C++ style:                   C++ Comments.       (line    6)
  * common variable attribute:             Common Variable Attributes.
!                                                              (line   89)
  * comparison of signed and unsigned values, warning: Warning Options.
!                                                              (line 1486)
  * compilation statistics:                Developer Options.  (line    6)
  * compiler bugs, reporting:              Bug Reporting.      (line    6)
  * compiler compared to C++ preprocessor: G++ and GCC.        (line   35)
*************** Keyword Index
*** 55600,55608 ****
  * const function attribute:              Common Function Attributes.
                                                               (line  139)
  * const qualifier:                       Pointers to Arrays. (line    6)
! * constants in constraints:              Simple Constraints. (line   70)
  * constraint modifier characters:        Modifiers.          (line    6)
! * constraint, matching:                  Simple Constraints. (line  139)
  * constraints, asm:                      Constraints.        (line    6)
  * constraints, machine specific:         Machine Constraints.
                                                               (line    6)
--- 55223,55231 ----
  * const function attribute:              Common Function Attributes.
                                                               (line  139)
  * const qualifier:                       Pointers to Arrays. (line    6)
! * constants in constraints:              Simple Constraints. (line   68)
  * constraint modifier characters:        Modifiers.          (line    6)
! * constraint, matching:                  Simple Constraints. (line  137)
  * constraints, asm:                      Constraints.        (line    6)
  * constraints, machine specific:         Machine Constraints.
                                                               (line    6)
*************** Keyword Index
*** 55622,55630 ****
  * coshl:                                 Other Builtins.     (line    6)
  * cosl:                                  Other Builtins.     (line    6)
  * CPATH:                                 Environment Variables.
!                                                              (line  129)
  * CPLUS_INCLUDE_PATH:                    Environment Variables.
!                                                              (line  131)
  * cpow:                                  Other Builtins.     (line    6)
  * cpowf:                                 Other Builtins.     (line    6)
  * cpowl:                                 Other Builtins.     (line    6)
--- 55245,55253 ----
  * coshl:                                 Other Builtins.     (line    6)
  * cosl:                                  Other Builtins.     (line    6)
  * CPATH:                                 Environment Variables.
!                                                              (line  127)
  * CPLUS_INCLUDE_PATH:                    Environment Variables.
!                                                              (line  129)
  * cpow:                                  Other Builtins.     (line    6)
  * cpowf:                                 Other Builtins.     (line    6)
  * cpowl:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 55656,55665 ****
  * ctanhf:                                Other Builtins.     (line    6)
  * ctanhl:                                Other Builtins.     (line    6)
  * ctanl:                                 Other Builtins.     (line    6)
  * Darwin options:                        Darwin Options.     (line    6)
  * dcgettext:                             Other Builtins.     (line    6)
- * DD integer suffix:                     Decimal Float.      (line    6)
  * dd integer suffix:                     Decimal Float.      (line    6)
  * deallocating variable length arrays:   Variable Length.    (line   22)
  * debug dump options:                    Developer Options.  (line    6)
  * debugging GCC:                         Developer Options.  (line    6)
--- 55279,55290 ----
  * ctanhf:                                Other Builtins.     (line    6)
  * ctanhl:                                Other Builtins.     (line    6)
  * ctanl:                                 Other Builtins.     (line    6)
+ * C_INCLUDE_PATH:                        Environment Variables.
+                                                              (line  128)
  * Darwin options:                        Darwin Options.     (line    6)
  * dcgettext:                             Other Builtins.     (line    6)
  * dd integer suffix:                     Decimal Float.      (line    6)
+ * DD integer suffix:                     Decimal Float.      (line    6)
  * deallocating variable length arrays:   Variable Length.    (line   22)
  * debug dump options:                    Developer Options.  (line    6)
  * debugging GCC:                         Developer Options.  (line    6)
*************** Keyword Index
*** 55673,55683 ****
  * declaring static data in C++:          Static Definitions. (line    6)
  * defining static data in C++:           Static Definitions. (line    6)
  * dependencies for make as output:       Environment Variables.
!                                                              (line  157)
  * dependencies, make:                    Preprocessor Options.
                                                               (line  185)
  * DEPENDENCIES_OUTPUT:                   Environment Variables.
!                                                              (line  156)
  * dependent name lookup:                 Name lookup.        (line    6)
  * deprecated enumerator attribute:       Enumerator Attributes.
                                                               (line   27)
--- 55298,55310 ----
  * declaring static data in C++:          Static Definitions. (line    6)
  * defining static data in C++:           Static Definitions. (line    6)
  * dependencies for make as output:       Environment Variables.
!                                                              (line  156)
! * dependencies for make as output <1>:   Environment Variables.
!                                                              (line  172)
  * dependencies, make:                    Preprocessor Options.
                                                               (line  185)
  * DEPENDENCIES_OUTPUT:                   Environment Variables.
!                                                              (line  155)
  * dependent name lookup:                 Name lookup.        (line    6)
  * deprecated enumerator attribute:       Enumerator Attributes.
                                                               (line   27)
*************** Keyword Index
*** 55686,55720 ****
  * deprecated type attribute:             Common Type Attributes.
                                                               (line  111)
  * deprecated variable attribute:         Common Variable Attributes.
!                                                              (line   99)
  * designated initializers:               Designated Inits.   (line    6)
  * designated_init type attribute:        Common Type Attributes.
                                                               (line  139)
! * designator lists:                      Designated Inits.   (line   97)
  * designators:                           Designated Inits.   (line   64)
  * destructor function attribute:         Common Function Attributes.
                                                               (line  154)
  * developer options:                     Developer Options.  (line    6)
- * DF integer suffix:                     Decimal Float.      (line    6)
  * df integer suffix:                     Decimal Float.      (line    6)
  * dgettext:                              Other Builtins.     (line    6)
  * diagnostic messages:                   Diagnostic Message Formatting Options.
                                                               (line    6)
  * dialect options:                       C Dialect Options.  (line    6)
! * digits in constraint:                  Simple Constraints. (line  127)
  * directory options:                     Directory Options.  (line    6)
  * disinterrupt function attribute, Epiphany: Epiphany Function Attributes.
                                                               (line    9)
  * disinterrupt function attribute, MeP:  MeP Function Attributes.
                                                               (line    9)
- * DL integer suffix:                     Decimal Float.      (line    6)
  * dl integer suffix:                     Decimal Float.      (line    6)
  * dllexport function attribute:          Microsoft Windows Function Attributes.
                                                               (line   10)
  * dllexport variable attribute:          Microsoft Windows Variable Attributes.
                                                               (line   12)
  * dllimport function attribute:          Microsoft Windows Function Attributes.
!                                                              (line   44)
  * dllimport variable attribute:          Microsoft Windows Variable Attributes.
                                                               (line   12)
  * dollar signs in identifier names:      Dollar Signs.       (line    6)
--- 55313,55347 ----
  * deprecated type attribute:             Common Type Attributes.
                                                               (line  111)
  * deprecated variable attribute:         Common Variable Attributes.
!                                                              (line   98)
  * designated initializers:               Designated Inits.   (line    6)
  * designated_init type attribute:        Common Type Attributes.
                                                               (line  139)
! * designator lists:                      Designated Inits.   (line   96)
  * designators:                           Designated Inits.   (line   64)
  * destructor function attribute:         Common Function Attributes.
                                                               (line  154)
  * developer options:                     Developer Options.  (line    6)
  * df integer suffix:                     Decimal Float.      (line    6)
+ * DF integer suffix:                     Decimal Float.      (line    6)
  * dgettext:                              Other Builtins.     (line    6)
  * diagnostic messages:                   Diagnostic Message Formatting Options.
                                                               (line    6)
  * dialect options:                       C Dialect Options.  (line    6)
! * digits in constraint:                  Simple Constraints. (line  125)
  * directory options:                     Directory Options.  (line    6)
  * disinterrupt function attribute, Epiphany: Epiphany Function Attributes.
                                                               (line    9)
  * disinterrupt function attribute, MeP:  MeP Function Attributes.
                                                               (line    9)
  * dl integer suffix:                     Decimal Float.      (line    6)
+ * DL integer suffix:                     Decimal Float.      (line    6)
  * dllexport function attribute:          Microsoft Windows Function Attributes.
                                                               (line   10)
  * dllexport variable attribute:          Microsoft Windows Variable Attributes.
                                                               (line   12)
  * dllimport function attribute:          Microsoft Windows Function Attributes.
!                                                              (line   42)
  * dllimport variable attribute:          Microsoft Windows Variable Attributes.
                                                               (line   12)
  * dollar signs in identifier names:      Dollar Signs.       (line    6)
*************** Keyword Index
*** 55724,55742 ****
  * dremf:                                 Other Builtins.     (line    6)
  * dreml:                                 Other Builtins.     (line    6)
  * dump options:                          Developer Options.  (line    6)
! * E in constraint:                       Simple Constraints. (line   89)
  * earlyclobber operand:                  Modifiers.          (line   25)
  * eight-bit data on the H8/300, H8/300H, and H8S: H8/300 Variable Attributes.
                                                               (line    9)
  * eightbit_data variable attribute, H8/300: H8/300 Variable Attributes.
                                                               (line    9)
! * EIND:                                  AVR Options.        (line  243)
  * either function attribute, MSP430:     MSP430 Function Attributes.
                                                               (line   53)
  * either variable attribute, MSP430:     MSP430 Variable Attributes.
                                                               (line   24)
  * empty structures:                      Empty Structures.   (line    6)
! * Enable Cilk Plus:                      C Dialect Options.  (line  289)
  * Enumerator Attributes:                 Enumerator Attributes.
                                                               (line    6)
  * environment variables:                 Environment Variables.
--- 55351,55369 ----
  * dremf:                                 Other Builtins.     (line    6)
  * dreml:                                 Other Builtins.     (line    6)
  * dump options:                          Developer Options.  (line    6)
! * E in constraint:                       Simple Constraints. (line   87)
  * earlyclobber operand:                  Modifiers.          (line   25)
  * eight-bit data on the H8/300, H8/300H, and H8S: H8/300 Variable Attributes.
                                                               (line    9)
  * eightbit_data variable attribute, H8/300: H8/300 Variable Attributes.
                                                               (line    9)
! * EIND:                                  AVR Options.        (line  249)
  * either function attribute, MSP430:     MSP430 Function Attributes.
                                                               (line   53)
  * either variable attribute, MSP430:     MSP430 Variable Attributes.
                                                               (line   24)
  * empty structures:                      Empty Structures.   (line    6)
! * Enable Cilk Plus:                      C Dialect Options.  (line  290)
  * Enumerator Attributes:                 Enumerator Attributes.
                                                               (line    6)
  * environment variables:                 Environment Variables.
*************** Keyword Index
*** 55780,55793 ****
  * expressions containing statements:     Statement Exprs.    (line    6)
  * expressions, constructor:              Compound Literals.  (line    6)
  * extended asm:                          Extended Asm.       (line    6)
! * extensible constraints:                Simple Constraints. (line  163)
  * extensions, ?::                        Conditionals.       (line    6)
  * extensions, C language:                C Extensions.       (line    6)
  * extensions, C++ language:              C++ Extensions.     (line    6)
  * external declaration scope:            Incompatibilities.  (line   80)
  * externally_visible function attribute: Common Function Attributes.
                                                               (line  214)
! * F in constraint:                       Simple Constraints. (line   94)
  * fabs:                                  Other Builtins.     (line    6)
  * fabsf:                                 Other Builtins.     (line    6)
  * fabsl:                                 Other Builtins.     (line    6)
--- 55407,55420 ----
  * expressions containing statements:     Statement Exprs.    (line    6)
  * expressions, constructor:              Compound Literals.  (line    6)
  * extended asm:                          Extended Asm.       (line    6)
! * extensible constraints:                Simple Constraints. (line  161)
  * extensions, ?::                        Conditionals.       (line    6)
  * extensions, C language:                C Extensions.       (line    6)
  * extensions, C++ language:              C++ Extensions.     (line    6)
  * external declaration scope:            Incompatibilities.  (line   80)
  * externally_visible function attribute: Common Function Attributes.
                                                               (line  214)
! * F in constraint:                       Simple Constraints. (line   92)
  * fabs:                                  Other Builtins.     (line    6)
  * fabsf:                                 Other Builtins.     (line    6)
  * fabsl:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 55798,55812 ****
  * far type attribute, MeP:               MeP Type Attributes.
                                                               (line    6)
  * far variable attribute, MeP:           MeP Variable Attributes.
!                                                              (line   31)
  * fast_interrupt function attribute, M32C: M32C Function Attributes.
                                                               (line   14)
  * fast_interrupt function attribute, MicroBlaze: MicroBlaze Function Attributes.
                                                               (line   27)
  * fast_interrupt function attribute, RX: RX Function Attributes.
                                                               (line    9)
- * fastcall function attribute, x86-32:   x86 Function Attributes.
-                                                              (line   15)
  * fatal signal:                          Bug Criteria.       (line    9)
  * fdim:                                  Other Builtins.     (line    6)
  * fdimf:                                 Other Builtins.     (line    6)
--- 55425,55439 ----
  * far type attribute, MeP:               MeP Type Attributes.
                                                               (line    6)
  * far variable attribute, MeP:           MeP Variable Attributes.
!                                                              (line   30)
! * fastcall function attribute, x86-32:   x86 Function Attributes.
!                                                              (line   15)
  * fast_interrupt function attribute, M32C: M32C Function Attributes.
                                                               (line   14)
  * fast_interrupt function attribute, MicroBlaze: MicroBlaze Function Attributes.
                                                               (line   27)
  * fast_interrupt function attribute, RX: RX Function Attributes.
                                                               (line    9)
  * fatal signal:                          Bug Criteria.       (line    9)
  * fdim:                                  Other Builtins.     (line    6)
  * fdimf:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 55824,55830 ****
  * flexible array members:                Zero Length.        (line    6)
  * float as function value type:          Incompatibilities.  (line  141)
  * floating point precision:              Disappointments.    (line   68)
! * floating-point precision:              Optimize Options.   (line 1957)
  * floor:                                 Other Builtins.     (line    6)
  * floorf:                                Other Builtins.     (line    6)
  * floorl:                                Other Builtins.     (line    6)
--- 55451,55457 ----
  * flexible array members:                Zero Length.        (line    6)
  * float as function value type:          Incompatibilities.  (line  141)
  * floating point precision:              Disappointments.    (line   68)
! * floating-point precision:              Optimize Options.   (line 1953)
  * floor:                                 Other Builtins.     (line    6)
  * floorf:                                Other Builtins.     (line    6)
  * floorl:                                Other Builtins.     (line    6)
*************** Keyword Index
*** 55841,55851 ****
  * fmodf:                                 Other Builtins.     (line    6)
  * fmodl:                                 Other Builtins.     (line    6)
  * force_align_arg_pointer function attribute, x86: x86 Function Attributes.
!                                                              (line   87)
  * format function attribute:             Common Function Attributes.
                                                               (line  234)
  * format_arg function attribute:         Common Function Attributes.
!                                                              (line  300)
  * Fortran:                               G++ and GCC.        (line    6)
  * forwarder_section function attribute, Epiphany: Epiphany Function Attributes.
                                                               (line   13)
--- 55468,55478 ----
  * fmodf:                                 Other Builtins.     (line    6)
  * fmodl:                                 Other Builtins.     (line    6)
  * force_align_arg_pointer function attribute, x86: x86 Function Attributes.
!                                                              (line   90)
  * format function attribute:             Common Function Attributes.
                                                               (line  234)
  * format_arg function attribute:         Common Function Attributes.
!                                                              (line  299)
  * Fortran:                               G++ and GCC.        (line    6)
  * forwarder_section function attribute, Epiphany: Epiphany Function Attributes.
                                                               (line   13)
*************** Keyword Index
*** 55874,55915 ****
  * function versions:                     Function Multiversioning.
                                                               (line    6)
  * function, size of pointer to:          Pointer Arith.      (line    6)
- * function_vector function attribute, H8/300: H8/300 Function Attributes.
-                                                              (line    9)
- * function_vector function attribute, M16C/M32C: M32C Function Attributes.
-                                                              (line   20)
- * function_vector function attribute, SH: SH Function Attributes.
-                                                              (line    9)
  * functions in arbitrary sections:       Common Function Attributes.
!                                                              (line  698)
  * functions that are dynamically resolved: Common Function Attributes.
!                                                              (line  395)
  * functions that are passed arguments in registers on x86-32: x86 Function Attributes.
!                                                              (line   63)
  * functions that behave like malloc:     Common Function Attributes.
!                                                              (line  480)
  * functions that have no side effects:   Common Function Attributes.
                                                               (line  139)
  * functions that never return:           Common Function Attributes.
!                                                              (line  605)
  * functions that pop the argument stack on x86-32: x86 Function Attributes.
                                                               (line    9)
  * functions that return more than once:  Common Function Attributes.
!                                                              (line  689)
  * functions with non-null pointer arguments: Common Function Attributes.
!                                                              (line  557)
  * functions with printf, scanf, strftime or strfmon style arguments: Common Function Attributes.
                                                               (line  234)
! * g in constraint:                       Simple Constraints. (line  120)
! * G in constraint:                       Simple Constraints. (line   98)
  * g++:                                   Invoking G++.       (line   14)
  * G++:                                   G++ and GCC.        (line   30)
  * gamma:                                 Other Builtins.     (line    6)
- * gamma_r:                               Other Builtins.     (line    6)
  * gammaf:                                Other Builtins.     (line    6)
  * gammaf_r:                              Other Builtins.     (line    6)
  * gammal:                                Other Builtins.     (line    6)
  * gammal_r:                              Other Builtins.     (line    6)
  * GCC:                                   G++ and GCC.        (line    6)
  * GCC command options:                   Invoking GCC.       (line    6)
  * GCC_COLORS environment variable:       Diagnostic Message Formatting Options.
--- 55501,55552 ----
  * function versions:                     Function Multiversioning.
                                                               (line    6)
  * function, size of pointer to:          Pointer Arith.      (line    6)
  * functions in arbitrary sections:       Common Function Attributes.
!                                                              (line  694)
  * functions that are dynamically resolved: Common Function Attributes.
!                                                              (line  391)
  * functions that are passed arguments in registers on x86-32: x86 Function Attributes.
!                                                              (line   66)
  * functions that behave like malloc:     Common Function Attributes.
!                                                              (line  476)
  * functions that have no side effects:   Common Function Attributes.
                                                               (line  139)
+ * functions that have no side effects <1>: Common Function Attributes.
+                                                              (line  656)
  * functions that never return:           Common Function Attributes.
!                                                              (line  601)
  * functions that pop the argument stack on x86-32: x86 Function Attributes.
                                                               (line    9)
+ * functions that pop the argument stack on x86-32 <1>: x86 Function Attributes.
+                                                              (line   15)
+ * functions that pop the argument stack on x86-32 <2>: x86 Function Attributes.
+                                                              (line   23)
+ * functions that pop the argument stack on x86-32 <3>: x86 Function Attributes.
+                                                              (line   98)
  * functions that return more than once:  Common Function Attributes.
!                                                              (line  685)
  * functions with non-null pointer arguments: Common Function Attributes.
!                                                              (line  553)
  * functions with printf, scanf, strftime or strfmon style arguments: Common Function Attributes.
                                                               (line  234)
! * function_return function attribute, x86: x86 Function Attributes.
!                                                              (line  241)
! * function_vector function attribute, H8/300: H8/300 Function Attributes.
!                                                              (line    9)
! * function_vector function attribute, M16C/M32C: M32C Function Attributes.
!                                                              (line   20)
! * function_vector function attribute, SH: SH Function Attributes.
!                                                              (line    9)
! * G in constraint:                       Simple Constraints. (line   96)
! * g in constraint:                       Simple Constraints. (line  118)
  * g++:                                   Invoking G++.       (line   14)
  * G++:                                   G++ and GCC.        (line   30)
  * gamma:                                 Other Builtins.     (line    6)
  * gammaf:                                Other Builtins.     (line    6)
  * gammaf_r:                              Other Builtins.     (line    6)
  * gammal:                                Other Builtins.     (line    6)
  * gammal_r:                              Other Builtins.     (line    6)
+ * gamma_r:                               Other Builtins.     (line    6)
  * GCC:                                   G++ and GCC.        (line    6)
  * GCC command options:                   Invoking GCC.       (line    6)
  * GCC_COLORS environment variable:       Diagnostic Message Formatting Options.
*************** Keyword Index
*** 55931,55983 ****
  * general-regs-only function attribute, AArch64: AArch64 Function Attributes.
                                                               (line   12)
  * gettext:                               Other Builtins.     (line    6)
! * global offset table:                   Code Gen Options.   (line  274)
  * global register after longjmp:         Global Register Variables.
!                                                              (line   76)
  * global register variables:             Global Register Variables.
                                                               (line    6)
  * GNAT:                                  G++ and GCC.        (line   30)
  * GNU C Compiler:                        G++ and GCC.        (line    6)
  * GNU Compiler Collection:               G++ and GCC.        (line    6)
  * gnu_inline function attribute:         Common Function Attributes.
!                                                              (line  347)
  * Go:                                    G++ and GCC.        (line    6)
  * goto with computed label:              Labels as Values.   (line    6)
  * gprof:                                 Instrumentation Options.
                                                               (line   24)
  * grouping options:                      Invoking GCC.       (line   31)
! * H in constraint:                       Simple Constraints. (line   98)
  * half-precision floating point:         Half-Precision.     (line    6)
  * hardware models and configurations, specifying: Submodel Options.
                                                               (line    6)
  * hex floats:                            Hex Floats.         (line    6)
  * highlight, color:                      Diagnostic Message Formatting Options.
                                                               (line   35)
- * HK fixed-suffix:                       Fixed-Point.        (line    6)
  * hk fixed-suffix:                       Fixed-Point.        (line    6)
! * hosted environment <1>:                C Dialect Options.  (line  246)
  * hosted environment:                    Standards.          (line   13)
  * hosted implementation:                 Standards.          (line   13)
  * hot function attribute:                Common Function Attributes.
!                                                              (line  385)
  * hot label attribute:                   Label Attributes.   (line   37)
  * hotpatch function attribute, S/390:    S/390 Function Attributes.
                                                               (line    9)
  * HPPA Options:                          HPPA Options.       (line    6)
- * HR fixed-suffix:                       Fixed-Point.        (line    6)
  * hr fixed-suffix:                       Fixed-Point.        (line    6)
  * hypot:                                 Other Builtins.     (line    6)
  * hypotf:                                Other Builtins.     (line    6)
  * hypotl:                                Other Builtins.     (line    6)
! * I in constraint:                       Simple Constraints. (line   81)
! * i in constraint:                       Simple Constraints. (line   70)
  * IA-64 Options:                         IA-64 Options.      (line    6)
  * IBM RS/6000 and PowerPC Options:       RS/6000 and PowerPC Options.
                                                               (line    6)
  * identifier names, dollar signs in:     Dollar Signs.       (line    6)
  * identifiers, names in assembler code:  Asm Labels.         (line    6)
  * ifunc function attribute:              Common Function Attributes.
!                                                              (line  395)
  * ilogb:                                 Other Builtins.     (line    6)
  * ilogbf:                                Other Builtins.     (line    6)
  * ilogbl:                                Other Builtins.     (line    6)
--- 55568,55621 ----
  * general-regs-only function attribute, AArch64: AArch64 Function Attributes.
                                                               (line   12)
  * gettext:                               Other Builtins.     (line    6)
! * global offset table:                   Code Gen Options.   (line  273)
  * global register after longjmp:         Global Register Variables.
!                                                              (line   74)
  * global register variables:             Global Register Variables.
                                                               (line    6)
  * GNAT:                                  G++ and GCC.        (line   30)
  * GNU C Compiler:                        G++ and GCC.        (line    6)
  * GNU Compiler Collection:               G++ and GCC.        (line    6)
  * gnu_inline function attribute:         Common Function Attributes.
!                                                              (line  345)
  * Go:                                    G++ and GCC.        (line    6)
  * goto with computed label:              Labels as Values.   (line    6)
  * gprof:                                 Instrumentation Options.
                                                               (line   24)
  * grouping options:                      Invoking GCC.       (line   31)
! * H in constraint:                       Simple Constraints. (line   96)
  * half-precision floating point:         Half-Precision.     (line    6)
  * hardware models and configurations, specifying: Submodel Options.
                                                               (line    6)
  * hex floats:                            Hex Floats.         (line    6)
  * highlight, color:                      Diagnostic Message Formatting Options.
                                                               (line   35)
  * hk fixed-suffix:                       Fixed-Point.        (line    6)
! * HK fixed-suffix:                       Fixed-Point.        (line    6)
  * hosted environment:                    Standards.          (line   13)
+ * hosted environment <1>:                C Dialect Options.  (line  243)
+ * hosted environment <2>:                C Dialect Options.  (line  251)
  * hosted implementation:                 Standards.          (line   13)
  * hot function attribute:                Common Function Attributes.
!                                                              (line  381)
  * hot label attribute:                   Label Attributes.   (line   37)
  * hotpatch function attribute, S/390:    S/390 Function Attributes.
                                                               (line    9)
  * HPPA Options:                          HPPA Options.       (line    6)
  * hr fixed-suffix:                       Fixed-Point.        (line    6)
+ * HR fixed-suffix:                       Fixed-Point.        (line    6)
  * hypot:                                 Other Builtins.     (line    6)
  * hypotf:                                Other Builtins.     (line    6)
  * hypotl:                                Other Builtins.     (line    6)
! * i in constraint:                       Simple Constraints. (line   68)
! * I in constraint:                       Simple Constraints. (line   79)
  * IA-64 Options:                         IA-64 Options.      (line    6)
  * IBM RS/6000 and PowerPC Options:       RS/6000 and PowerPC Options.
                                                               (line    6)
  * identifier names, dollar signs in:     Dollar Signs.       (line    6)
  * identifiers, names in assembler code:  Asm Labels.         (line    6)
  * ifunc function attribute:              Common Function Attributes.
!                                                              (line  391)
  * ilogb:                                 Other Builtins.     (line    6)
  * ilogbf:                                Other Builtins.     (line    6)
  * ilogbl:                                Other Builtins.     (line    6)
*************** Keyword Index
*** 56003,56013 ****
  * indirect calls, PowerPC:               PowerPC Function Attributes.
                                                               (line   10)
  * indirect functions:                    Common Function Attributes.
!                                                              (line  395)
! * init_priority variable attribute:      C++ Attributes.     (line   50)
  * initializations in expressions:        Compound Literals.  (line    6)
  * initializers with labeled elements:    Designated Inits.   (line    6)
  * initializers, non-constant:            Initializers.       (line    6)
  * inline assembly language:              Using Assembly Language with C.
                                                               (line    6)
  * inline automatic for C++ member fns:   Inline.             (line   68)
--- 55641,55653 ----
  * indirect calls, PowerPC:               PowerPC Function Attributes.
                                                               (line   10)
  * indirect functions:                    Common Function Attributes.
!                                                              (line  391)
! * indirect_branch function attribute, x86: x86 Function Attributes.
!                                                              (line  231)
  * initializations in expressions:        Compound Literals.  (line    6)
  * initializers with labeled elements:    Designated Inits.   (line    6)
  * initializers, non-constant:            Initializers.       (line    6)
+ * init_priority variable attribute:      C++ Attributes.     (line   50)
  * inline assembly language:              Using Assembly Language with C.
                                                               (line    6)
  * inline automatic for C++ member fns:   Inline.             (line   68)
*************** Keyword Index
*** 56075,56081 ****
  * io variable attribute, AVR:            AVR Variable Attributes.
                                                               (line   39)
  * io variable attribute, MeP:            MeP Variable Attributes.
!                                                              (line   37)
  * io_low variable attribute, AVR:        AVR Variable Attributes.
                                                               (line   57)
  * isalnum:                               Other Builtins.     (line    6)
--- 55715,55721 ----
  * io variable attribute, AVR:            AVR Variable Attributes.
                                                               (line   39)
  * io variable attribute, MeP:            MeP Variable Attributes.
!                                                              (line   36)
  * io_low variable attribute, AVR:        AVR Variable Attributes.
                                                               (line   57)
  * isalnum:                               Other Builtins.     (line    6)
*************** Keyword Index
*** 56124,56135 ****
  * j1f:                                   Other Builtins.     (line    6)
  * j1l:                                   Other Builtins.     (line    6)
  * Java:                                  G++ and GCC.        (line    6)
! * java_interface type attribute:         C++ Attributes.     (line   70)
  * jn:                                    Other Builtins.     (line    6)
  * jnf:                                   Other Builtins.     (line    6)
  * jnl:                                   Other Builtins.     (line    6)
- * K fixed-suffix:                        Fixed-Point.        (line    6)
  * k fixed-suffix:                        Fixed-Point.        (line    6)
  * keep_interrupts_masked function attribute, MIPS: MIPS Function Attributes.
                                                               (line   34)
  * kernel attribute, Nvidia PTX:          Nvidia PTX Function Attributes.
--- 55764,55775 ----
  * j1f:                                   Other Builtins.     (line    6)
  * j1l:                                   Other Builtins.     (line    6)
  * Java:                                  G++ and GCC.        (line    6)
! * java_interface type attribute:         C++ Attributes.     (line   71)
  * jn:                                    Other Builtins.     (line    6)
  * jnf:                                   Other Builtins.     (line    6)
  * jnl:                                   Other Builtins.     (line    6)
  * k fixed-suffix:                        Fixed-Point.        (line    6)
+ * K fixed-suffix:                        Fixed-Point.        (line    6)
  * keep_interrupts_masked function attribute, MIPS: MIPS Function Attributes.
                                                               (line   34)
  * kernel attribute, Nvidia PTX:          Nvidia PTX Function Attributes.
*************** Keyword Index
*** 56156,56161 ****
--- 55796,55803 ----
  * labs:                                  Other Builtins.     (line    6)
  * LANG:                                  Environment Variables.
                                                               (line   21)
+ * LANG <1>:                              Environment Variables.
+                                                              (line  106)
  * language dialect options:              C Dialect Options.  (line    6)
  * LC_ALL:                                Environment Variables.
                                                               (line   21)
*************** Keyword Index
*** 56167,56193 ****
  * ldexpf:                                Other Builtins.     (line    6)
  * ldexpl:                                Other Builtins.     (line    6)
  * leaf function attribute:               Common Function Attributes.
!                                                              (line  443)
  * length-zero arrays:                    Zero Length.        (line    6)
  * lgamma:                                Other Builtins.     (line    6)
- * lgamma_r:                              Other Builtins.     (line    6)
  * lgammaf:                               Other Builtins.     (line    6)
  * lgammaf_r:                             Other Builtins.     (line    6)
  * lgammal:                               Other Builtins.     (line    6)
  * lgammal_r:                             Other Builtins.     (line    6)
  * Libraries:                             Link Options.       (line   30)
  * LIBRARY_PATH:                          Environment Variables.
                                                               (line   97)
  * link options:                          Link Options.       (line    6)
! * linker script:                         Link Options.       (line  245)
! * LK fixed-suffix:                       Fixed-Point.        (line    6)
  * lk fixed-suffix:                       Fixed-Point.        (line    6)
  * LL integer suffix:                     Long Long.          (line    6)
  * llabs:                                 Other Builtins.     (line    6)
- * LLK fixed-suffix:                      Fixed-Point.        (line    6)
  * llk fixed-suffix:                      Fixed-Point.        (line    6)
! * LLR fixed-suffix:                      Fixed-Point.        (line    6)
  * llr fixed-suffix:                      Fixed-Point.        (line    6)
  * llrint:                                Other Builtins.     (line    6)
  * llrintf:                               Other Builtins.     (line    6)
  * llrintl:                               Other Builtins.     (line    6)
--- 55809,55835 ----
  * ldexpf:                                Other Builtins.     (line    6)
  * ldexpl:                                Other Builtins.     (line    6)
  * leaf function attribute:               Common Function Attributes.
!                                                              (line  439)
  * length-zero arrays:                    Zero Length.        (line    6)
  * lgamma:                                Other Builtins.     (line    6)
  * lgammaf:                               Other Builtins.     (line    6)
  * lgammaf_r:                             Other Builtins.     (line    6)
  * lgammal:                               Other Builtins.     (line    6)
  * lgammal_r:                             Other Builtins.     (line    6)
+ * lgamma_r:                              Other Builtins.     (line    6)
  * Libraries:                             Link Options.       (line   30)
  * LIBRARY_PATH:                          Environment Variables.
                                                               (line   97)
  * link options:                          Link Options.       (line    6)
! * linker script:                         Link Options.       (line  241)
  * lk fixed-suffix:                       Fixed-Point.        (line    6)
+ * LK fixed-suffix:                       Fixed-Point.        (line    6)
  * LL integer suffix:                     Long Long.          (line    6)
  * llabs:                                 Other Builtins.     (line    6)
  * llk fixed-suffix:                      Fixed-Point.        (line    6)
! * LLK fixed-suffix:                      Fixed-Point.        (line    6)
  * llr fixed-suffix:                      Fixed-Point.        (line    6)
+ * LLR fixed-suffix:                      Fixed-Point.        (line    6)
  * llrint:                                Other Builtins.     (line    6)
  * llrintf:                               Other Builtins.     (line    6)
  * llrintl:                               Other Builtins.     (line    6)
*************** Keyword Index
*** 56195,56201 ****
  * llroundf:                              Other Builtins.     (line    6)
  * llroundl:                              Other Builtins.     (line    6)
  * LM32 options:                          LM32 Options.       (line    6)
! * load address instruction:              Simple Constraints. (line  154)
  * local labels:                          Local Labels.       (line    6)
  * local variables in macros:             Typeof.             (line   46)
  * local variables, specifying registers: Local Register Variables.
--- 55837,55843 ----
  * llroundf:                              Other Builtins.     (line    6)
  * llroundl:                              Other Builtins.     (line    6)
  * LM32 options:                          LM32 Options.       (line    6)
! * load address instruction:              Simple Constraints. (line  152)
  * local labels:                          Local Labels.       (line    6)
  * local variables in macros:             Typeof.             (line   46)
  * local variables, specifying registers: Local Register Variables.
*************** Keyword Index
*** 56222,56227 ****
--- 55864,55877 ----
  * logf:                                  Other Builtins.     (line    6)
  * logl:                                  Other Builtins.     (line    6)
  * long long data types:                  Long Long.          (line    6)
+ * longcall function attribute, Blackfin: Blackfin Function Attributes.
+                                                              (line   38)
+ * longcall function attribute, PowerPC:  PowerPC Function Attributes.
+                                                              (line   10)
+ * longjmp:                               Global Register Variables.
+                                                              (line   74)
+ * longjmp incompatibilities:             Incompatibilities.  (line   39)
+ * longjmp warnings:                      Warning Options.    (line  837)
  * long_call function attribute, ARC:     ARC Function Attributes.
                                                               (line   24)
  * long_call function attribute, ARM:     ARM Function Attributes.
*************** Keyword Index
*** 56230,56249 ****
                                                               (line   57)
  * long_call function attribute, MIPS:    MIPS Function Attributes.
                                                               (line   62)
- * longcall function attribute, Blackfin: Blackfin Function Attributes.
-                                                              (line   38)
- * longcall function attribute, PowerPC:  PowerPC Function Attributes.
-                                                              (line   10)
- * longjmp:                               Global Register Variables.
-                                                              (line   76)
- * longjmp incompatibilities:             Incompatibilities.  (line   39)
- * longjmp warnings:                      Warning Options.    (line  844)
  * lower function attribute, MSP430:      MSP430 Function Attributes.
                                                               (line   53)
  * lower variable attribute, MSP430:      MSP430 Variable Attributes.
                                                               (line   24)
- * LR fixed-suffix:                       Fixed-Point.        (line    6)
  * lr fixed-suffix:                       Fixed-Point.        (line    6)
  * lrint:                                 Other Builtins.     (line    6)
  * lrintf:                                Other Builtins.     (line    6)
  * lrintl:                                Other Builtins.     (line    6)
--- 55880,55891 ----
                                                               (line   57)
  * long_call function attribute, MIPS:    MIPS Function Attributes.
                                                               (line   62)
  * lower function attribute, MSP430:      MSP430 Function Attributes.
                                                               (line   53)
  * lower variable attribute, MSP430:      MSP430 Variable Attributes.
                                                               (line   24)
  * lr fixed-suffix:                       Fixed-Point.        (line    6)
+ * LR fixed-suffix:                       Fixed-Point.        (line    6)
  * lrint:                                 Other Builtins.     (line    6)
  * lrintf:                                Other Builtins.     (line    6)
  * lrintl:                                Other Builtins.     (line    6)
*************** Keyword Index
*** 56267,56276 ****
                                                               (line  185)
  * malloc:                                Other Builtins.     (line    6)
  * malloc function attribute:             Common Function Attributes.
!                                                              (line  480)
! * matching constraint:                   Simple Constraints. (line  139)
  * may_alias type attribute:              Common Type Attributes.
!                                                              (line  151)
  * MCore options:                         MCore Options.      (line    6)
  * medium_call function attribute, ARC:   ARC Function Attributes.
                                                               (line   24)
--- 55909,55918 ----
                                                               (line  185)
  * malloc:                                Other Builtins.     (line    6)
  * malloc function attribute:             Common Function Attributes.
!                                                              (line  476)
! * matching constraint:                   Simple Constraints. (line  137)
  * may_alias type attribute:              Common Type Attributes.
!                                                              (line  150)
  * MCore options:                         MCore Options.      (line    6)
  * medium_call function attribute, ARC:   ARC Function Attributes.
                                                               (line   24)
*************** Keyword Index
*** 56290,56296 ****
                                                               (line    6)
  * MicroBlaze Options:                    MicroBlaze Options. (line    6)
  * micromips function attribute:          MIPS Function Attributes.
!                                                              (line   88)
  * middle-operands, omitted:              Conditionals.       (line    6)
  * MIPS options:                          MIPS Options.       (line    6)
  * mips16 function attribute, MIPS:       MIPS Function Attributes.
--- 55932,55938 ----
                                                               (line    6)
  * MicroBlaze Options:                    MicroBlaze Options. (line    6)
  * micromips function attribute:          MIPS Function Attributes.
!                                                              (line   89)
  * middle-operands, omitted:              Conditionals.       (line    6)
  * MIPS options:                          MIPS Options.       (line    6)
  * mips16 function attribute, MIPS:       MIPS Function Attributes.
*************** Keyword Index
*** 56304,56310 ****
  * MMIX Options:                          MMIX Options.       (line    6)
  * MN10300 options:                       MN10300 Options.    (line    6)
  * mode variable attribute:               Common Variable Attributes.
!                                                              (line  120)
  * model function attribute, M32R/D:      M32R/D Function Attributes.
                                                               (line   15)
  * model variable attribute, IA-64:       IA-64 Variable Attributes.
--- 55946,55952 ----
  * MMIX Options:                          MMIX Options.       (line    6)
  * MN10300 options:                       MN10300 Options.    (line    6)
  * mode variable attribute:               Common Variable Attributes.
!                                                              (line  119)
  * model function attribute, M32R/D:      M32R/D Function Attributes.
                                                               (line   15)
  * model variable attribute, IA-64:       IA-64 Variable Attributes.
*************** Keyword Index
*** 56316,56325 ****
  * modfl:                                 Other Builtins.     (line    6)
  * modifiers in constraints:              Modifiers.          (line    6)
  * Moxie Options:                         Moxie Options.      (line    6)
  * ms_abi function attribute, x86:        x86 Function Attributes.
                                                               (line   34)
  * ms_hook_prologue function attribute, x86: x86 Function Attributes.
!                                                              (line   57)
  * ms_struct type attribute, PowerPC:     PowerPC Type Attributes.
                                                               (line    9)
  * ms_struct type attribute, x86:         x86 Type Attributes.
--- 55958,55968 ----
  * modfl:                                 Other Builtins.     (line    6)
  * modifiers in constraints:              Modifiers.          (line    6)
  * Moxie Options:                         Moxie Options.      (line    6)
+ * MSP430 Options:                        MSP430 Options.     (line    6)
  * ms_abi function attribute, x86:        x86 Function Attributes.
                                                               (line   34)
  * ms_hook_prologue function attribute, x86: x86 Function Attributes.
!                                                              (line   59)
  * ms_struct type attribute, PowerPC:     PowerPC Type Attributes.
                                                               (line    9)
  * ms_struct type attribute, x86:         x86 Type Attributes.
*************** Keyword Index
*** 56328,56337 ****
                                                               (line    9)
  * ms_struct variable attribute, x86:     x86 Variable Attributes.
                                                               (line   11)
- * MSP430 Options:                        MSP430 Options.     (line    6)
  * multiple alternative constraints:      Multi-Alternative.  (line    6)
  * multiprecision arithmetic:             Long Long.          (line    6)
! * n in constraint:                       Simple Constraints. (line   75)
  * naked function attribute, ARM:         ARM Function Attributes.
                                                               (line   41)
  * naked function attribute, AVR:         AVR Function Attributes.
--- 55971,55979 ----
                                                               (line    9)
  * ms_struct variable attribute, x86:     x86 Variable Attributes.
                                                               (line   11)
  * multiple alternative constraints:      Multi-Alternative.  (line    6)
  * multiprecision arithmetic:             Long Long.          (line    6)
! * n in constraint:                       Simple Constraints. (line   73)
  * naked function attribute, ARM:         ARM Function Attributes.
                                                               (line   41)
  * naked function attribute, AVR:         AVR Function Attributes.
*************** Keyword Index
*** 56341,56347 ****
  * naked function attribute, MSP430:      MSP430 Function Attributes.
                                                               (line   30)
  * naked function attribute, NDS32:       NDS32 Function Attributes.
!                                                              (line   39)
  * naked function attribute, RL78:        RL78 Function Attributes.
                                                               (line   20)
  * naked function attribute, RX:          RX Function Attributes.
--- 55983,55989 ----
  * naked function attribute, MSP430:      MSP430 Function Attributes.
                                                               (line   30)
  * naked function attribute, NDS32:       NDS32 Function Attributes.
!                                                              (line   35)
  * naked function attribute, RL78:        RL78 Function Attributes.
                                                               (line   20)
  * naked function attribute, RX:          RX Function Attributes.
*************** Keyword Index
*** 56360,56366 ****
  * near type attribute, MeP:              MeP Type Attributes.
                                                               (line    6)
  * near variable attribute, MeP:          MeP Variable Attributes.
!                                                              (line   25)
  * nearbyint:                             Other Builtins.     (line    6)
  * nearbyintf:                            Other Builtins.     (line    6)
  * nearbyintl:                            Other Builtins.     (line    6)
--- 56002,56008 ----
  * near type attribute, MeP:              MeP Type Attributes.
                                                               (line    6)
  * near variable attribute, MeP:          MeP Variable Attributes.
!                                                              (line   24)
  * nearbyint:                             Other Builtins.     (line    6)
  * nearbyintf:                            Other Builtins.     (line    6)
  * nearbyintl:                            Other Builtins.     (line    6)
*************** Keyword Index
*** 56368,56374 ****
                                                               (line   19)
  * nested functions:                      Nested Functions.   (line    6)
  * nested_ready function attribute, NDS32: NDS32 Function Attributes.
!                                                              (line   25)
  * nesting function attribute, Blackfin:  Blackfin Function Attributes.
                                                               (line   45)
  * newlines (escaped):                    Escaped Newlines.   (line    6)
--- 56010,56016 ----
                                                               (line   19)
  * nested functions:                      Nested Functions.   (line    6)
  * nested_ready function attribute, NDS32: NDS32 Function Attributes.
!                                                              (line   23)
  * nesting function attribute, Blackfin:  Blackfin Function Attributes.
                                                               (line   45)
  * newlines (escaped):                    Escaped Newlines.   (line    6)
*************** Keyword Index
*** 56378,56451 ****
  * nexttoward:                            Other Builtins.     (line    6)
  * nexttowardf:                           Other Builtins.     (line    6)
  * nexttowardl:                           Other Builtins.     (line    6)
! * NFC:                                   Warning Options.    (line 1689)
! * NFKC:                                  Warning Options.    (line 1689)
  * Nios II options:                       Nios II Options.    (line    6)
  * nmi function attribute, NDS32:         NDS32 Function Attributes.
!                                                              (line   54)
  * NMI handler functions on the Blackfin processor: Blackfin Function Attributes.
                                                               (line   50)
  * nmi_handler function attribute, Blackfin: Blackfin Function Attributes.
                                                               (line   50)
- * no_icf function attribute:             Common Function Attributes.
-                                                              (line  492)
- * no_instrument_function function attribute: Common Function Attributes.
-                                                              (line  496)
- * no_reorder function attribute:         Common Function Attributes.
-                                                              (line  501)
- * no_sanitize_address function attribute: Common Function Attributes.
-                                                              (line  510)
- * no_sanitize_thread function attribute: Common Function Attributes.
-                                                              (line  518)
- * no_sanitize_undefined function attribute: Common Function Attributes.
-                                                              (line  523)
- * no_split_stack function attribute:     Common Function Attributes.
-                                                              (line  529)
- * no_stack_limit function attribute:     Common Function Attributes.
-                                                              (line  535)
  * noclone function attribute:            Common Function Attributes.
!                                                              (line  540)
  * nocommon variable attribute:           Common Variable Attributes.
!                                                              (line   90)
  * nocompression function attribute, MIPS: MIPS Function Attributes.
!                                                              (line  104)
  * noinit variable attribute, MSP430:     MSP430 Variable Attributes.
                                                               (line    7)
  * noinline function attribute:           Common Function Attributes.
!                                                              (line  546)
  * nomicromips function attribute:        MIPS Function Attributes.
!                                                              (line   88)
  * nomips16 function attribute, MIPS:     MIPS Function Attributes.
                                                               (line   73)
  * non-constant initializers:             Initializers.       (line    6)
  * non-static inline function:            Inline.             (line   82)
  * nonnull function attribute:            Common Function Attributes.
!                                                              (line  557)
  * noplt function attribute:              Common Function Attributes.
!                                                              (line  581)
  * noreturn function attribute:           Common Function Attributes.
!                                                              (line  605)
  * nosave_low_regs function attribute, SH: SH Function Attributes.
                                                               (line   34)
- * not_nested function attribute, NDS32:  NDS32 Function Attributes.
-                                                              (line   22)
  * note GCC_COLORS capability:            Diagnostic Message Formatting Options.
                                                               (line   75)
  * nothrow function attribute:            Common Function Attributes.
!                                                              (line  636)
  * notshared type attribute, ARM:         ARM Type Attributes.
                                                               (line    6)
  * Nvidia PTX options:                    Nvidia PTX Options. (line    6)
  * nvptx options:                         Nvidia PTX Options. (line    6)
  * o in constraint:                       Simple Constraints. (line   23)
  * OBJC_INCLUDE_PATH:                     Environment Variables.
!                                                              (line  132)
! * Objective-C <1>:                       Standards.          (line  183)
  * Objective-C:                           G++ and GCC.        (line    6)
  * Objective-C and Objective-C++ options, command-line: Objective-C and Objective-C++ Dialect Options.
                                                               (line    6)
- * Objective-C++ <1>:                     Standards.          (line  183)
  * Objective-C++:                         G++ and GCC.        (line    6)
  * offsettable address:                   Simple Constraints. (line   23)
  * old-style function definitions:        Function Prototypes.
                                                               (line    6)
--- 56020,56093 ----
  * nexttoward:                            Other Builtins.     (line    6)
  * nexttowardf:                           Other Builtins.     (line    6)
  * nexttowardl:                           Other Builtins.     (line    6)
! * NFC:                                   Warning Options.    (line 1674)
! * NFKC:                                  Warning Options.    (line 1674)
  * Nios II options:                       Nios II Options.    (line    6)
  * nmi function attribute, NDS32:         NDS32 Function Attributes.
!                                                              (line   50)
  * NMI handler functions on the Blackfin processor: Blackfin Function Attributes.
                                                               (line   50)
  * nmi_handler function attribute, Blackfin: Blackfin Function Attributes.
                                                               (line   50)
  * noclone function attribute:            Common Function Attributes.
!                                                              (line  536)
  * nocommon variable attribute:           Common Variable Attributes.
!                                                              (line   89)
  * nocompression function attribute, MIPS: MIPS Function Attributes.
!                                                              (line  106)
  * noinit variable attribute, MSP430:     MSP430 Variable Attributes.
                                                               (line    7)
  * noinline function attribute:           Common Function Attributes.
!                                                              (line  542)
  * nomicromips function attribute:        MIPS Function Attributes.
!                                                              (line   89)
  * nomips16 function attribute, MIPS:     MIPS Function Attributes.
                                                               (line   73)
  * non-constant initializers:             Initializers.       (line    6)
  * non-static inline function:            Inline.             (line   82)
  * nonnull function attribute:            Common Function Attributes.
!                                                              (line  553)
  * noplt function attribute:              Common Function Attributes.
!                                                              (line  577)
  * noreturn function attribute:           Common Function Attributes.
!                                                              (line  601)
  * nosave_low_regs function attribute, SH: SH Function Attributes.
                                                               (line   34)
  * note GCC_COLORS capability:            Diagnostic Message Formatting Options.
                                                               (line   75)
  * nothrow function attribute:            Common Function Attributes.
!                                                              (line  632)
  * notshared type attribute, ARM:         ARM Type Attributes.
                                                               (line    6)
+ * not_nested function attribute, NDS32:  NDS32 Function Attributes.
+                                                              (line   21)
+ * no_icf function attribute:             Common Function Attributes.
+                                                              (line  488)
+ * no_instrument_function function attribute: Common Function Attributes.
+                                                              (line  492)
+ * no_reorder function attribute:         Common Function Attributes.
+                                                              (line  497)
+ * no_sanitize_address function attribute: Common Function Attributes.
+                                                              (line  506)
+ * no_sanitize_thread function attribute: Common Function Attributes.
+                                                              (line  514)
+ * no_sanitize_undefined function attribute: Common Function Attributes.
+                                                              (line  519)
+ * no_split_stack function attribute:     Common Function Attributes.
+                                                              (line  525)
+ * no_stack_limit function attribute:     Common Function Attributes.
+                                                              (line  531)
  * Nvidia PTX options:                    Nvidia PTX Options. (line    6)
  * nvptx options:                         Nvidia PTX Options. (line    6)
  * o in constraint:                       Simple Constraints. (line   23)
  * OBJC_INCLUDE_PATH:                     Environment Variables.
!                                                              (line  130)
  * Objective-C:                           G++ and GCC.        (line    6)
+ * Objective-C <1>:                       Standards.          (line  183)
  * Objective-C and Objective-C++ options, command-line: Objective-C and Objective-C++ Dialect Options.
                                                               (line    6)
  * Objective-C++:                         G++ and GCC.        (line    6)
+ * Objective-C++ <1>:                     Standards.          (line  183)
  * offsettable address:                   Simple Constraints. (line   23)
  * old-style function definitions:        Function Prototypes.
                                                               (line    6)
*************** Keyword Index
*** 56453,56464 ****
                                                               (line   37)
  * omitted middle-operands:               Conditionals.       (line    6)
  * open coding:                           Inline.             (line    6)
! * OpenACC accelerator programming:       C Dialect Options.  (line  263)
  * OpenMP parallel:                       C Dialect Options.  (line  277)
! * OpenMP SIMD:                           C Dialect Options.  (line  285)
  * operand constraints, asm:              Constraints.        (line    6)
  * optimize function attribute:           Common Function Attributes.
!                                                              (line  643)
  * optimize options:                      Optimize Options.   (line    6)
  * options to control diagnostics formatting: Diagnostic Message Formatting Options.
                                                               (line    6)
--- 56095,56107 ----
                                                               (line   37)
  * omitted middle-operands:               Conditionals.       (line    6)
  * open coding:                           Inline.             (line    6)
! * OpenACC accelerator programming:       C Dialect Options.  (line  262)
! * OpenACC accelerator programming <1>:   C Dialect Options.  (line  271)
  * OpenMP parallel:                       C Dialect Options.  (line  277)
! * OpenMP SIMD:                           C Dialect Options.  (line  286)
  * operand constraints, asm:              Constraints.        (line    6)
  * optimize function attribute:           Common Function Attributes.
!                                                              (line  639)
  * optimize options:                      Optimize Options.   (line    6)
  * options to control diagnostics formatting: Diagnostic Message Formatting Options.
                                                               (line    6)
*************** Keyword Index
*** 56490,56527 ****
                                                               (line   34)
  * OS_task function attribute, AVR:       AVR Function Attributes.
                                                               (line   34)
! * other register constraints:            Simple Constraints. (line  163)
  * output file option:                    Overall Options.    (line  183)
  * overloaded virtual function, warning:  C++ Dialect Options.
!                                                              (line  670)
! * p in constraint:                       Simple Constraints. (line  154)
  * packed type attribute:                 Common Type Attributes.
!                                                              (line  187)
  * packed variable attribute:             Common Variable Attributes.
!                                                              (line  131)
  * parameter forward declaration:         Variable Length.    (line   66)
  * partial_save function attribute, NDS32: NDS32 Function Attributes.
!                                                              (line   35)
  * Pascal:                                G++ and GCC.        (line   23)
  * pcs function attribute, ARM:           ARM Function Attributes.
                                                               (line   51)
  * PDP-11 Options:                        PDP-11 Options.     (line    6)
  * persistent variable attribute, MSP430: MSP430 Variable Attributes.
                                                               (line   12)
! * PIC:                                   Code Gen Options.   (line  274)
  * picoChip options:                      picoChip Options.   (line    6)
  * pmf:                                   Bound member functions.
                                                               (line    6)
  * pointer arguments:                     Common Function Attributes.
                                                               (line  144)
- * Pointer Bounds Checker attributes <1>: Common Type Attributes.
-                                                              (line   84)
  * Pointer Bounds Checker attributes:     Common Function Attributes.
                                                               (line  118)
  * Pointer Bounds Checker builtins:       Pointer Bounds Checker builtins.
                                                               (line    6)
  * Pointer Bounds Checker options:        Instrumentation Options.
!                                                              (line  333)
  * pointer to member function:            Bound member functions.
                                                               (line    6)
  * pointers to arrays:                    Pointers to Arrays. (line    6)
--- 56133,56170 ----
                                                               (line   34)
  * OS_task function attribute, AVR:       AVR Function Attributes.
                                                               (line   34)
! * other register constraints:            Simple Constraints. (line  161)
  * output file option:                    Overall Options.    (line  183)
  * overloaded virtual function, warning:  C++ Dialect Options.
!                                                              (line  664)
! * p in constraint:                       Simple Constraints. (line  152)
  * packed type attribute:                 Common Type Attributes.
!                                                              (line  186)
  * packed variable attribute:             Common Variable Attributes.
!                                                              (line  130)
  * parameter forward declaration:         Variable Length.    (line   66)
  * partial_save function attribute, NDS32: NDS32 Function Attributes.
!                                                              (line   31)
  * Pascal:                                G++ and GCC.        (line   23)
  * pcs function attribute, ARM:           ARM Function Attributes.
                                                               (line   51)
  * PDP-11 Options:                        PDP-11 Options.     (line    6)
  * persistent variable attribute, MSP430: MSP430 Variable Attributes.
                                                               (line   12)
! * PIC:                                   Code Gen Options.   (line  273)
  * picoChip options:                      picoChip Options.   (line    6)
  * pmf:                                   Bound member functions.
                                                               (line    6)
  * pointer arguments:                     Common Function Attributes.
                                                               (line  144)
  * Pointer Bounds Checker attributes:     Common Function Attributes.
                                                               (line  118)
+ * Pointer Bounds Checker attributes <1>: Common Type Attributes.
+                                                              (line   84)
  * Pointer Bounds Checker builtins:       Pointer Bounds Checker builtins.
                                                               (line    6)
  * Pointer Bounds Checker options:        Instrumentation Options.
!                                                              (line  340)
  * pointer to member function:            Bound member functions.
                                                               (line    6)
  * pointers to arrays:                    Pointers to Arrays. (line    6)
*************** Keyword Index
*** 56536,56548 ****
  * pragma GCC ivdep:                      Loop-Specific Pragmas.
                                                               (line    7)
  * pragma GCC optimize:                   Function Specific Option Pragmas.
!                                                              (line   19)
  * pragma GCC pop_options:                Function Specific Option Pragmas.
!                                                              (line   29)
  * pragma GCC push_options:               Function Specific Option Pragmas.
!                                                              (line   29)
  * pragma GCC reset_options:              Function Specific Option Pragmas.
!                                                              (line   36)
  * pragma GCC target:                     Function Specific Option Pragmas.
                                                               (line    7)
  * pragma, address:                       M32C Pragmas.       (line   15)
--- 56179,56191 ----
  * pragma GCC ivdep:                      Loop-Specific Pragmas.
                                                               (line    7)
  * pragma GCC optimize:                   Function Specific Option Pragmas.
!                                                              (line   20)
  * pragma GCC pop_options:                Function Specific Option Pragmas.
!                                                              (line   31)
  * pragma GCC push_options:               Function Specific Option Pragmas.
!                                                              (line   31)
  * pragma GCC reset_options:              Function Specific Option Pragmas.
!                                                              (line   39)
  * pragma GCC target:                     Function Specific Option Pragmas.
                                                               (line    7)
  * pragma, address:                       M32C Pragmas.       (line   15)
*************** Keyword Index
*** 56553,56565 ****
  * pragma, coprocessor subclass:          MeP Pragmas.        (line   28)
  * pragma, custom io_volatile:            MeP Pragmas.        (line    7)
  * pragma, diagnostic:                    Diagnostic Pragmas. (line   14)
  * pragma, disinterrupt:                  MeP Pragmas.        (line   38)
! * pragma, fini:                          Solaris Pragmas.    (line   19)
! * pragma, init:                          Solaris Pragmas.    (line   24)
! * pragma, long_calls:                    ARM Pragmas.        (line   11)
! * pragma, long_calls_off:                ARM Pragmas.        (line   17)
  * pragma, longcall:                      RS/6000 and PowerPC Pragmas.
                                                               (line   14)
  * pragma, mark:                          Darwin Pragmas.     (line   11)
  * pragma, memregs:                       M32C Pragmas.       (line    7)
  * pragma, no_long_calls:                 ARM Pragmas.        (line   14)
--- 56196,56209 ----
  * pragma, coprocessor subclass:          MeP Pragmas.        (line   28)
  * pragma, custom io_volatile:            MeP Pragmas.        (line    7)
  * pragma, diagnostic:                    Diagnostic Pragmas. (line   14)
+ * pragma, diagnostic <1>:                Diagnostic Pragmas. (line   57)
  * pragma, disinterrupt:                  MeP Pragmas.        (line   38)
! * pragma, fini:                          Solaris Pragmas.    (line   20)
! * pragma, init:                          Solaris Pragmas.    (line   26)
  * pragma, longcall:                      RS/6000 and PowerPC Pragmas.
                                                               (line   14)
+ * pragma, long_calls:                    ARM Pragmas.        (line   11)
+ * pragma, long_calls_off:                ARM Pragmas.        (line   17)
  * pragma, mark:                          Darwin Pragmas.     (line   11)
  * pragma, memregs:                       M32C Pragmas.       (line    7)
  * pragma, no_long_calls:                 ARM Pragmas.        (line   14)
*************** Keyword Index
*** 56577,56583 ****
  * pragmas:                               Pragmas.            (line    6)
  * pragmas in C++, effect on inlining:    C++ Interface.      (line   57)
  * pragmas, interface and implementation: C++ Interface.      (line    6)
! * pragmas, warning of unknown:           Warning Options.    (line  861)
  * precompiled headers:                   Precompiled Headers.
                                                               (line    6)
  * preprocessing numbers:                 Incompatibilities.  (line  173)
--- 56221,56227 ----
  * pragmas:                               Pragmas.            (line    6)
  * pragmas in C++, effect on inlining:    C++ Interface.      (line   57)
  * pragmas, interface and implementation: C++ Interface.      (line    6)
! * pragmas, warning of unknown:           Warning Options.    (line  854)
  * precompiled headers:                   Precompiled Headers.
                                                               (line    6)
  * preprocessing numbers:                 Incompatibilities.  (line  173)
*************** Keyword Index
*** 56597,56636 ****
  * promotion of formal parameters:        Function Prototypes.
                                                               (line    6)
  * pure function attribute:               Common Function Attributes.
!                                                              (line  660)
! * push address instruction:              Simple Constraints. (line  154)
  * putchar:                               Other Builtins.     (line    6)
  * puts:                                  Other Builtins.     (line    6)
- * Q floating point suffix:               Floating Types.     (line    6)
  * q floating point suffix:               Floating Types.     (line    6)
  * qsort, and global register variables:  Global Register Variables.
!                                                              (line   62)
  * quote GCC_COLORS capability:           Diagnostic Message Formatting Options.
                                                               (line   85)
- * R fixed-suffix:                        Fixed-Point.        (line    6)
  * r fixed-suffix:                        Fixed-Point.        (line    6)
! * r in constraint:                       Simple Constraints. (line   66)
! * RAMPD:                                 AVR Options.        (line  359)
! * RAMPX:                                 AVR Options.        (line  359)
! * RAMPY:                                 AVR Options.        (line  359)
! * RAMPZ:                                 AVR Options.        (line  359)
  * ranges in case statements:             Case Ranges.        (line    6)
  * read-only strings:                     Incompatibilities.  (line    9)
  * reentrant function attribute, MSP430:  MSP430 Function Attributes.
                                                               (line   40)
  * register variable after longjmp:       Global Register Variables.
!                                                              (line   76)
  * registers for local variables:         Local Register Variables.
                                                               (line    6)
! * registers in constraints:              Simple Constraints. (line   66)
  * registers, global allocation:          Global Register Variables.
                                                               (line    6)
  * registers, global variables in:        Global Register Variables.
                                                               (line    6)
  * regparm function attribute, x86:       x86 Function Attributes.
!                                                              (line   63)
! * relocation truncated to fit (ColdFire): M680x0 Options.    (line  329)
! * relocation truncated to fit (MIPS):    MIPS Options.       (line  239)
  * remainder:                             Other Builtins.     (line    6)
  * remainderf:                            Other Builtins.     (line    6)
  * remainderl:                            Other Builtins.     (line    6)
--- 56241,56280 ----
  * promotion of formal parameters:        Function Prototypes.
                                                               (line    6)
  * pure function attribute:               Common Function Attributes.
!                                                              (line  656)
! * push address instruction:              Simple Constraints. (line  152)
  * putchar:                               Other Builtins.     (line    6)
  * puts:                                  Other Builtins.     (line    6)
  * q floating point suffix:               Floating Types.     (line    6)
+ * Q floating point suffix:               Floating Types.     (line    6)
  * qsort, and global register variables:  Global Register Variables.
!                                                              (line   60)
  * quote GCC_COLORS capability:           Diagnostic Message Formatting Options.
                                                               (line   85)
  * r fixed-suffix:                        Fixed-Point.        (line    6)
! * R fixed-suffix:                        Fixed-Point.        (line    6)
! * r in constraint:                       Simple Constraints. (line   64)
! * RAMPD:                                 AVR Options.        (line  360)
! * RAMPX:                                 AVR Options.        (line  360)
! * RAMPY:                                 AVR Options.        (line  360)
! * RAMPZ:                                 AVR Options.        (line  360)
  * ranges in case statements:             Case Ranges.        (line    6)
  * read-only strings:                     Incompatibilities.  (line    9)
  * reentrant function attribute, MSP430:  MSP430 Function Attributes.
                                                               (line   40)
  * register variable after longjmp:       Global Register Variables.
!                                                              (line   74)
  * registers for local variables:         Local Register Variables.
                                                               (line    6)
! * registers in constraints:              Simple Constraints. (line   64)
  * registers, global allocation:          Global Register Variables.
                                                               (line    6)
  * registers, global variables in:        Global Register Variables.
                                                               (line    6)
  * regparm function attribute, x86:       x86 Function Attributes.
!                                                              (line   66)
! * relocation truncated to fit (ColdFire): M680x0 Options.    (line  325)
! * relocation truncated to fit (MIPS):    MIPS Options.       (line  236)
  * remainder:                             Other Builtins.     (line    6)
  * remainderf:                            Other Builtins.     (line    6)
  * remainderl:                            Other Builtins.     (line    6)
*************** Keyword Index
*** 56640,56653 ****
  * renesas function attribute, SH:        SH Function Attributes.
                                                               (line   40)
  * reordering, warning:                   C++ Dialect Options.
!                                                              (line  586)
  * reporting bugs:                        Bugs.               (line    6)
  * resbank function attribute, SH:        SH Function Attributes.
                                                               (line   44)
  * reset function attribute, NDS32:       NDS32 Function Attributes.
!                                                              (line   49)
  * reset handler functions:               NDS32 Function Attributes.
!                                                              (line   49)
  * rest argument (in macro):              Variadic Macros.    (line    6)
  * restricted pointers:                   Restricted Pointers.
                                                               (line    6)
--- 56284,56297 ----
  * renesas function attribute, SH:        SH Function Attributes.
                                                               (line   40)
  * reordering, warning:                   C++ Dialect Options.
!                                                              (line  582)
  * reporting bugs:                        Bugs.               (line    6)
  * resbank function attribute, SH:        SH Function Attributes.
                                                               (line   44)
  * reset function attribute, NDS32:       NDS32 Function Attributes.
!                                                              (line   45)
  * reset handler functions:               NDS32 Function Attributes.
!                                                              (line   45)
  * rest argument (in macro):              Variadic Macros.    (line    6)
  * restricted pointers:                   Restricted Pointers.
                                                               (line    6)
*************** Keyword Index
*** 56656,56664 ****
  * restricted this pointer:               Restricted Pointers.
                                                               (line    6)
  * returns_nonnull function attribute:    Common Function Attributes.
!                                                              (line  679)
  * returns_twice function attribute:      Common Function Attributes.
!                                                              (line  689)
  * rindex:                                Other Builtins.     (line    6)
  * rint:                                  Other Builtins.     (line    6)
  * rintf:                                 Other Builtins.     (line    6)
--- 56300,56308 ----
  * restricted this pointer:               Restricted Pointers.
                                                               (line    6)
  * returns_nonnull function attribute:    Common Function Attributes.
!                                                              (line  675)
  * returns_twice function attribute:      Common Function Attributes.
!                                                              (line  685)
  * rindex:                                Other Builtins.     (line    6)
  * rint:                                  Other Builtins.     (line    6)
  * rintf:                                 Other Builtins.     (line    6)
*************** Keyword Index
*** 56674,56680 ****
                                                               (line    6)
  * run-time options:                      Code Gen Options.   (line    6)
  * RX Options:                            RX Options.         (line    6)
! * s in constraint:                       Simple Constraints. (line  102)
  * S/390 and zSeries Options:             S/390 and zSeries Options.
                                                               (line    6)
  * saddr variable attribute, RL78:        RL78 Variable Attributes.
--- 56318,56324 ----
                                                               (line    6)
  * run-time options:                      Code Gen Options.   (line    6)
  * RX Options:                            RX Options.         (line    6)
! * s in constraint:                       Simple Constraints. (line  100)
  * S/390 and zSeries Options:             S/390 and zSeries Options.
                                                               (line    6)
  * saddr variable attribute, RL78:        RL78 Variable Attributes.
*************** Keyword Index
*** 56683,56703 ****
                                                               (line   56)
  * save all registers on the H8/300, H8/300H, and H8S: H8/300 Function Attributes.
                                                               (line   23)
- * save_all function attribute, NDS32:    NDS32 Function Attributes.
-                                                              (line   31)
- * save_volatiles function attribute, MicroBlaze: MicroBlaze Function Attributes.
-                                                              (line    9)
  * saveall function attribute, Blackfin:  Blackfin Function Attributes.
                                                               (line   56)
  * saveall function attribute, H8/300:    H8/300 Function Attributes.
                                                               (line   23)
  * scalar_storage_order type attribute:   Common Type Attributes.
!                                                              (line  222)
  * scalb:                                 Other Builtins.     (line    6)
  * scalbf:                                Other Builtins.     (line    6)
  * scalbl:                                Other Builtins.     (line    6)
  * scalbln:                               Other Builtins.     (line    6)
  * scalblnf:                              Other Builtins.     (line    6)
  * scalbn:                                Other Builtins.     (line    6)
  * scalbnf:                               Other Builtins.     (line    6)
  * scanf, and constant strings:           Incompatibilities.  (line   17)
--- 56327,56348 ----
                                                               (line   56)
  * save all registers on the H8/300, H8/300H, and H8S: H8/300 Function Attributes.
                                                               (line   23)
  * saveall function attribute, Blackfin:  Blackfin Function Attributes.
                                                               (line   56)
  * saveall function attribute, H8/300:    H8/300 Function Attributes.
                                                               (line   23)
+ * save_all function attribute, NDS32:    NDS32 Function Attributes.
+                                                              (line   28)
+ * save_volatiles function attribute, MicroBlaze: MicroBlaze Function Attributes.
+                                                              (line    9)
  * scalar_storage_order type attribute:   Common Type Attributes.
!                                                              (line  221)
  * scalb:                                 Other Builtins.     (line    6)
  * scalbf:                                Other Builtins.     (line    6)
  * scalbl:                                Other Builtins.     (line    6)
  * scalbln:                               Other Builtins.     (line    6)
  * scalblnf:                              Other Builtins.     (line    6)
+ * scalblnf <1>:                          Other Builtins.     (line    6)
  * scalbn:                                Other Builtins.     (line    6)
  * scalbnf:                               Other Builtins.     (line    6)
  * scanf, and constant strings:           Incompatibilities.  (line   17)
*************** Keyword Index
*** 56710,56743 ****
                                                               (line    9)
  * search path:                           Directory Options.  (line    6)
  * section function attribute:            Common Function Attributes.
!                                                              (line  698)
  * section variable attribute:            Common Variable Attributes.
!                                                              (line  152)
  * selectany variable attribute:          Microsoft Windows Variable Attributes.
                                                               (line   16)
  * sentinel function attribute:           Common Function Attributes.
!                                                              (line  714)
  * setjmp:                                Global Register Variables.
!                                                              (line   76)
  * setjmp incompatibilities:              Incompatibilities.  (line   39)
  * shared strings:                        Incompatibilities.  (line    9)
  * shared variable attribute:             Microsoft Windows Variable Attributes.
                                                               (line   37)
  * short_call function attribute, ARC:    ARC Function Attributes.
                                                               (line   24)
  * short_call function attribute, ARM:    ARM Function Attributes.
                                                               (line   31)
  * short_call function attribute, Epiphany: Epiphany Function Attributes.
                                                               (line   57)
- * shortcall function attribute, Blackfin: Blackfin Function Attributes.
-                                                              (line   38)
- * shortcall function attribute, PowerPC: PowerPC Function Attributes.
-                                                              (line   10)
  * side effect in ?::                     Conditionals.       (line   20)
  * side effects, macro argument:          Statement Exprs.    (line   35)
  * side effects, order of evaluation:     Non-bugs.           (line  196)
  * signal function attribute, AVR:        AVR Function Attributes.
!                                                              (line   59)
  * signbit:                               Other Builtins.     (line    6)
  * signbitd128:                           Other Builtins.     (line    6)
  * signbitd32:                            Other Builtins.     (line    6)
--- 56355,56388 ----
                                                               (line    9)
  * search path:                           Directory Options.  (line    6)
  * section function attribute:            Common Function Attributes.
!                                                              (line  694)
  * section variable attribute:            Common Variable Attributes.
!                                                              (line  151)
  * selectany variable attribute:          Microsoft Windows Variable Attributes.
                                                               (line   16)
  * sentinel function attribute:           Common Function Attributes.
!                                                              (line  710)
  * setjmp:                                Global Register Variables.
!                                                              (line   74)
  * setjmp incompatibilities:              Incompatibilities.  (line   39)
  * shared strings:                        Incompatibilities.  (line    9)
  * shared variable attribute:             Microsoft Windows Variable Attributes.
                                                               (line   37)
+ * shortcall function attribute, Blackfin: Blackfin Function Attributes.
+                                                              (line   38)
+ * shortcall function attribute, PowerPC: PowerPC Function Attributes.
+                                                              (line   10)
  * short_call function attribute, ARC:    ARC Function Attributes.
                                                               (line   24)
  * short_call function attribute, ARM:    ARM Function Attributes.
                                                               (line   31)
  * short_call function attribute, Epiphany: Epiphany Function Attributes.
                                                               (line   57)
  * side effect in ?::                     Conditionals.       (line   20)
  * side effects, macro argument:          Statement Exprs.    (line   35)
  * side effects, order of evaluation:     Non-bugs.           (line  196)
  * signal function attribute, AVR:        AVR Function Attributes.
!                                                              (line   58)
  * signbit:                               Other Builtins.     (line    6)
  * signbitd128:                           Other Builtins.     (line    6)
  * signbitd32:                            Other Builtins.     (line    6)
*************** Keyword Index
*** 56745,56757 ****
  * signbitf:                              Other Builtins.     (line    6)
  * signbitl:                              Other Builtins.     (line    6)
  * signed and unsigned values, comparison warning: Warning Options.
!                                                              (line 1501)
  * significand:                           Other Builtins.     (line    6)
  * significandf:                          Other Builtins.     (line    6)
  * significandl:                          Other Builtins.     (line    6)
! * SIMD:                                  C Dialect Options.  (line  285)
  * simd function attribute:               Common Function Attributes.
!                                                              (line  740)
  * simple constraints:                    Simple Constraints. (line    6)
  * sin:                                   Other Builtins.     (line    6)
  * sincos:                                Other Builtins.     (line    6)
--- 56390,56402 ----
  * signbitf:                              Other Builtins.     (line    6)
  * signbitl:                              Other Builtins.     (line    6)
  * signed and unsigned values, comparison warning: Warning Options.
!                                                              (line 1486)
  * significand:                           Other Builtins.     (line    6)
  * significandf:                          Other Builtins.     (line    6)
  * significandl:                          Other Builtins.     (line    6)
! * SIMD:                                  C Dialect Options.  (line  286)
  * simd function attribute:               Common Function Attributes.
!                                                              (line  736)
  * simple constraints:                    Simple Constraints. (line    6)
  * sin:                                   Other Builtins.     (line    6)
  * sincos:                                Other Builtins.     (line    6)
*************** Keyword Index
*** 56763,56776 ****
  * sinhl:                                 Other Builtins.     (line    6)
  * sinl:                                  Other Builtins.     (line    6)
  * sizeof:                                Typeof.             (line    6)
- * smaller data references <1>:           Nios II Options.    (line    9)
  * smaller data references:               M32R/D Options.     (line   57)
  * smaller data references (PowerPC):     RS/6000 and PowerPC Options.
!                                                              (line  809)
  * snprintf:                              Other Builtins.     (line    6)
  * Solaris 2 options:                     Solaris 2 Options.  (line    6)
- * sp_switch function attribute, SH:      SH Function Attributes.
-                                                              (line   58)
  * SPARC options:                         SPARC Options.      (line    6)
  * Spec Files:                            Spec Files.         (line    6)
  * specified registers:                   Explicit Register Variables.
--- 56408,56419 ----
  * sinhl:                                 Other Builtins.     (line    6)
  * sinl:                                  Other Builtins.     (line    6)
  * sizeof:                                Typeof.             (line    6)
  * smaller data references:               M32R/D Options.     (line   57)
+ * smaller data references <1>:           Nios II Options.    (line    9)
  * smaller data references (PowerPC):     RS/6000 and PowerPC Options.
!                                                              (line  811)
  * snprintf:                              Other Builtins.     (line    6)
  * Solaris 2 options:                     Solaris 2 Options.  (line    6)
  * SPARC options:                         SPARC Options.      (line    6)
  * Spec Files:                            Spec Files.         (line    6)
  * specified registers:                   Explicit Register Variables.
*************** Keyword Index
*** 56789,56808 ****
                                                               (line    6)
  * spu_vector variable attribute, SPU:    SPU Variable Attributes.
                                                               (line    6)
  * sqrt:                                  Other Builtins.     (line    6)
  * sqrtf:                                 Other Builtins.     (line    6)
  * sqrtl:                                 Other Builtins.     (line    6)
  * sscanf:                                Other Builtins.     (line    6)
  * sscanf, and constant strings:          Incompatibilities.  (line   17)
  * sseregparm function attribute, x86:    x86 Function Attributes.
!                                                              (line   80)
  * stack_protect function attribute:      Common Function Attributes.
!                                                              (line  762)
  * statements inside expressions:         Statement Exprs.    (line    6)
  * static data in C++, declaring and defining: Static Definitions.
                                                               (line    6)
  * stdcall function attribute, x86-32:    x86 Function Attributes.
!                                                              (line   95)
  * stpcpy:                                Other Builtins.     (line    6)
  * stpncpy:                               Other Builtins.     (line    6)
  * strcasecmp:                            Other Builtins.     (line    6)
--- 56432,56453 ----
                                                               (line    6)
  * spu_vector variable attribute, SPU:    SPU Variable Attributes.
                                                               (line    6)
+ * sp_switch function attribute, SH:      SH Function Attributes.
+                                                              (line   58)
  * sqrt:                                  Other Builtins.     (line    6)
  * sqrtf:                                 Other Builtins.     (line    6)
  * sqrtl:                                 Other Builtins.     (line    6)
  * sscanf:                                Other Builtins.     (line    6)
  * sscanf, and constant strings:          Incompatibilities.  (line   17)
  * sseregparm function attribute, x86:    x86 Function Attributes.
!                                                              (line   83)
  * stack_protect function attribute:      Common Function Attributes.
!                                                              (line  758)
  * statements inside expressions:         Statement Exprs.    (line    6)
  * static data in C++, declaring and defining: Static Definitions.
                                                               (line    6)
  * stdcall function attribute, x86-32:    x86 Function Attributes.
!                                                              (line   98)
  * stpcpy:                                Other Builtins.     (line    6)
  * stpncpy:                               Other Builtins.     (line    6)
  * strcasecmp:                            Other Builtins.     (line    6)
*************** Keyword Index
*** 56829,56835 ****
  * strstr:                                Other Builtins.     (line    6)
  * struct:                                Unnamed Fields.     (line    6)
  * struct __htm_tdb:                      S/390 System z Built-in Functions.
!                                                              (line   54)
  * structures:                            Incompatibilities.  (line  146)
  * structures, constructor expression:    Compound Literals.  (line    6)
  * submodel options:                      Submodel Options.   (line    6)
--- 56474,56480 ----
  * strstr:                                Other Builtins.     (line    6)
  * struct:                                Unnamed Fields.     (line    6)
  * struct __htm_tdb:                      S/390 System z Built-in Functions.
!                                                              (line   49)
  * structures:                            Incompatibilities.  (line  146)
  * structures, constructor expression:    Compound Literals.  (line    6)
  * submodel options:                      Submodel Options.   (line    6)
*************** Keyword Index
*** 56837,56850 ****
  * subscripting and function values:      Subscripting.       (line    6)
  * suffixes for C++ source:               Invoking G++.       (line    6)
  * SUNPRO_DEPENDENCIES:                   Environment Variables.
!                                                              (line  172)
  * suppressing warnings:                  Warning Options.    (line    6)
  * surprises in C++:                      C++ Misunderstandings.
                                                               (line    6)
  * syntax checking:                       Warning Options.    (line   13)
  * syscall_linkage function attribute, IA-64: IA-64 Function Attributes.
                                                               (line    9)
! * system headers, warnings from:         Warning Options.    (line 1093)
  * sysv_abi function attribute, x86:      x86 Function Attributes.
                                                               (line   34)
  * tan:                                   Other Builtins.     (line    6)
--- 56482,56495 ----
  * subscripting and function values:      Subscripting.       (line    6)
  * suffixes for C++ source:               Invoking G++.       (line    6)
  * SUNPRO_DEPENDENCIES:                   Environment Variables.
!                                                              (line  171)
  * suppressing warnings:                  Warning Options.    (line    6)
  * surprises in C++:                      C++ Misunderstandings.
                                                               (line    6)
  * syntax checking:                       Warning Options.    (line   13)
  * syscall_linkage function attribute, IA-64: IA-64 Function Attributes.
                                                               (line    9)
! * system headers, warnings from:         Warning Options.    (line 1085)
  * sysv_abi function attribute, x86:      x86 Function Attributes.
                                                               (line   34)
  * tan:                                   Other Builtins.     (line    6)
*************** Keyword Index
*** 56853,56887 ****
  * tanhf:                                 Other Builtins.     (line    6)
  * tanhl:                                 Other Builtins.     (line    6)
  * tanl:                                  Other Builtins.     (line    6)
! * target function attribute <1>:         x86 Function Attributes.
!                                                              (line  100)
! * target function attribute <2>:         S/390 Function Attributes.
!                                                              (line   21)
  * target function attribute <3>:         PowerPC Function Attributes.
                                                               (line   21)
! * target function attribute <4>:         Nios II Function Attributes.
!                                                              (line    9)
! * target function attribute <5>:         ARM Function Attributes.
!                                                              (line   69)
! * target function attribute:             Common Function Attributes.
!                                                              (line  767)
  * target machine, specifying:            Invoking GCC.       (line   24)
  * target("abm") function attribute, x86: x86 Function Attributes.
!                                                              (line  106)
  * target("aes") function attribute, x86: x86 Function Attributes.
!                                                              (line  111)
  * target("align-stringops") function attribute, x86: x86 Function Attributes.
!                                                              (line  205)
  * target("altivec") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   28)
  * target("arch=ARCH") function attribute, x86: x86 Function Attributes.
!                                                              (line  214)
  * target("arm") function attribute, ARM: ARM Function Attributes.
!                                                              (line   79)
  * target("avoid-indexed-addresses") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  149)
  * target("cld") function attribute, x86: x86 Function Attributes.
!                                                              (line  176)
  * target("cmpb") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   34)
  * target("cpu=CPU") function attribute, PowerPC: PowerPC Function Attributes.
--- 56498,56532 ----
  * tanhf:                                 Other Builtins.     (line    6)
  * tanhl:                                 Other Builtins.     (line    6)
  * tanl:                                  Other Builtins.     (line    6)
! * target function attribute:             Common Function Attributes.
!                                                              (line  763)
! * target function attribute <1>:         ARM Function Attributes.
!                                                              (line   70)
! * target function attribute <2>:         Nios II Function Attributes.
!                                                              (line    9)
  * target function attribute <3>:         PowerPC Function Attributes.
                                                               (line   21)
! * target function attribute <4>:         S/390 Function Attributes.
!                                                              (line   22)
! * target function attribute <5>:         x86 Function Attributes.
!                                                              (line  103)
  * target machine, specifying:            Invoking GCC.       (line   24)
  * target("abm") function attribute, x86: x86 Function Attributes.
!                                                              (line  109)
  * target("aes") function attribute, x86: x86 Function Attributes.
!                                                              (line  114)
  * target("align-stringops") function attribute, x86: x86 Function Attributes.
!                                                              (line  208)
  * target("altivec") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   28)
  * target("arch=ARCH") function attribute, x86: x86 Function Attributes.
!                                                              (line  217)
  * target("arm") function attribute, ARM: ARM Function Attributes.
!                                                              (line   80)
  * target("avoid-indexed-addresses") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  149)
  * target("cld") function attribute, x86: x86 Function Attributes.
!                                                              (line  179)
  * target("cmpb") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   34)
  * target("cpu=CPU") function attribute, PowerPC: PowerPC Function Attributes.
*************** Keyword Index
*** 56891,56933 ****
  * target("custom-INSN=N") function attribute, Nios II: Nios II Function Attributes.
                                                               (line   16)
  * target("default") function attribute, x86: x86 Function Attributes.
!                                                              (line  114)
  * target("dlmzb") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   40)
  * target("fancy-math-387") function attribute, x86: x86 Function Attributes.
!                                                              (line  180)
  * target("fma4") function attribute, x86: x86 Function Attributes.
!                                                              (line  160)
  * target("fpmath=FPMATH") function attribute, x86: x86 Function Attributes.
!                                                              (line  222)
  * target("fprnd") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   47)
  * target("fpu=") function attribute, ARM: ARM Function Attributes.
!                                                              (line   85)
  * target("friz") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  140)
  * target("fused-madd") function attribute, x86: x86 Function Attributes.
!                                                              (line  185)
  * target("hard-dfp") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   53)
  * target("ieee-fp") function attribute, x86: x86 Function Attributes.
!                                                              (line  190)
  * target("inline-all-stringops") function attribute, x86: x86 Function Attributes.
!                                                              (line  195)
  * target("inline-stringops-dynamically") function attribute, x86: x86 Function Attributes.
!                                                              (line  199)
  * target("isel") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   59)
  * target("longcall") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  159)
  * target("lwp") function attribute, x86: x86 Function Attributes.
!                                                              (line  168)
  * target("mfcrf") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   63)
  * target("mfpgpr") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   70)
  * target("mmx") function attribute, x86: x86 Function Attributes.
!                                                              (line  119)
  * target("mulhw") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   77)
  * target("multiple") function attribute, PowerPC: PowerPC Function Attributes.
--- 56536,56578 ----
  * target("custom-INSN=N") function attribute, Nios II: Nios II Function Attributes.
                                                               (line   16)
  * target("default") function attribute, x86: x86 Function Attributes.
!                                                              (line  117)
  * target("dlmzb") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   40)
  * target("fancy-math-387") function attribute, x86: x86 Function Attributes.
!                                                              (line  183)
  * target("fma4") function attribute, x86: x86 Function Attributes.
!                                                              (line  163)
  * target("fpmath=FPMATH") function attribute, x86: x86 Function Attributes.
!                                                              (line  225)
  * target("fprnd") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   47)
  * target("fpu=") function attribute, ARM: ARM Function Attributes.
!                                                              (line   86)
  * target("friz") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  140)
  * target("fused-madd") function attribute, x86: x86 Function Attributes.
!                                                              (line  188)
  * target("hard-dfp") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   53)
  * target("ieee-fp") function attribute, x86: x86 Function Attributes.
!                                                              (line  193)
  * target("inline-all-stringops") function attribute, x86: x86 Function Attributes.
!                                                              (line  198)
  * target("inline-stringops-dynamically") function attribute, x86: x86 Function Attributes.
!                                                              (line  202)
  * target("isel") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   59)
  * target("longcall") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  159)
  * target("lwp") function attribute, x86: x86 Function Attributes.
!                                                              (line  171)
  * target("mfcrf") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   63)
  * target("mfpgpr") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   70)
  * target("mmx") function attribute, x86: x86 Function Attributes.
!                                                              (line  122)
  * target("mulhw") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   77)
  * target("multiple") function attribute, PowerPC: PowerPC Function Attributes.
*************** Keyword Index
*** 56937,56945 ****
  * target("paired") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  154)
  * target("pclmul") function attribute, x86: x86 Function Attributes.
!                                                              (line  123)
  * target("popcnt") function attribute, x86: x86 Function Attributes.
!                                                              (line  127)
  * target("popcntb") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   95)
  * target("popcntd") function attribute, PowerPC: PowerPC Function Attributes.
--- 56582,56590 ----
  * target("paired") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  154)
  * target("pclmul") function attribute, x86: x86 Function Attributes.
!                                                              (line  126)
  * target("popcnt") function attribute, x86: x86 Function Attributes.
!                                                              (line  130)
  * target("popcntb") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   95)
  * target("popcntd") function attribute, PowerPC: PowerPC Function Attributes.
*************** Keyword Index
*** 56949,56990 ****
  * target("powerpc-gpopt") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  114)
  * target("recip") function attribute, x86: x86 Function Attributes.
!                                                              (line  209)
  * target("recip-precision") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  120)
  * target("sse") function attribute, x86: x86 Function Attributes.
!                                                              (line  131)
  * target("sse2") function attribute, x86: x86 Function Attributes.
!                                                              (line  135)
  * target("sse3") function attribute, x86: x86 Function Attributes.
!                                                              (line  139)
  * target("sse4") function attribute, x86: x86 Function Attributes.
!                                                              (line  143)
  * target("sse4.1") function attribute, x86: x86 Function Attributes.
!                                                              (line  148)
  * target("sse4.2") function attribute, x86: x86 Function Attributes.
!                                                              (line  152)
  * target("sse4a") function attribute, x86: x86 Function Attributes.
!                                                              (line  156)
  * target("ssse3") function attribute, x86: x86 Function Attributes.
!                                                              (line  172)
  * target("string") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  126)
  * target("thumb") function attribute, ARM: ARM Function Attributes.
!                                                              (line   75)
  * target("tune=TUNE") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  171)
  * target("tune=TUNE") function attribute, x86: x86 Function Attributes.
!                                                              (line  218)
  * target("update") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   89)
  * target("vsx") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  132)
  * target("xop") function attribute, x86: x86 Function Attributes.
!                                                              (line  164)
  * target-dependent options:              Submodel Options.   (line    6)
  * target_clones function attribute:      Common Function Attributes.
!                                                              (line  800)
  * TC1:                                   Standards.          (line   13)
  * TC2:                                   Standards.          (line   13)
  * TC3:                                   Standards.          (line   13)
--- 56594,56635 ----
  * target("powerpc-gpopt") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  114)
  * target("recip") function attribute, x86: x86 Function Attributes.
!                                                              (line  212)
  * target("recip-precision") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  120)
  * target("sse") function attribute, x86: x86 Function Attributes.
!                                                              (line  134)
  * target("sse2") function attribute, x86: x86 Function Attributes.
!                                                              (line  138)
  * target("sse3") function attribute, x86: x86 Function Attributes.
!                                                              (line  142)
  * target("sse4") function attribute, x86: x86 Function Attributes.
!                                                              (line  146)
  * target("sse4.1") function attribute, x86: x86 Function Attributes.
!                                                              (line  151)
  * target("sse4.2") function attribute, x86: x86 Function Attributes.
!                                                              (line  155)
  * target("sse4a") function attribute, x86: x86 Function Attributes.
!                                                              (line  159)
  * target("ssse3") function attribute, x86: x86 Function Attributes.
!                                                              (line  175)
  * target("string") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  126)
  * target("thumb") function attribute, ARM: ARM Function Attributes.
!                                                              (line   76)
  * target("tune=TUNE") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  171)
  * target("tune=TUNE") function attribute, x86: x86 Function Attributes.
!                                                              (line  221)
  * target("update") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line   89)
  * target("vsx") function attribute, PowerPC: PowerPC Function Attributes.
                                                               (line  132)
  * target("xop") function attribute, x86: x86 Function Attributes.
!                                                              (line  167)
  * target-dependent options:              Submodel Options.   (line    6)
  * target_clones function attribute:      Common Function Attributes.
!                                                              (line  796)
  * TC1:                                   Standards.          (line   13)
  * TC2:                                   Standards.          (line   13)
  * TC3:                                   Standards.          (line   13)
*************** Keyword Index
*** 57011,57024 ****
  * tiny type attribute, MeP:              MeP Type Attributes.
                                                               (line    6)
  * tiny variable attribute, MeP:          MeP Variable Attributes.
!                                                              (line   21)
  * tiny_data variable attribute, H8/300:  H8/300 Variable Attributes.
                                                               (line   19)
  * TLS:                                   Thread-Local.       (line    6)
  * tls-dialect= function attribute, AArch64: AArch64 Function Attributes.
                                                               (line   44)
  * tls_model variable attribute:          Common Variable Attributes.
!                                                              (line  197)
  * TMPDIR:                                Environment Variables.
                                                               (line   45)
  * toascii:                               Other Builtins.     (line    6)
--- 56656,56669 ----
  * tiny type attribute, MeP:              MeP Type Attributes.
                                                               (line    6)
  * tiny variable attribute, MeP:          MeP Variable Attributes.
!                                                              (line   20)
  * tiny_data variable attribute, H8/300:  H8/300 Variable Attributes.
                                                               (line   19)
  * TLS:                                   Thread-Local.       (line    6)
  * tls-dialect= function attribute, AArch64: AArch64 Function Attributes.
                                                               (line   44)
  * tls_model variable attribute:          Common Variable Attributes.
!                                                              (line  196)
  * TMPDIR:                                Environment Variables.
                                                               (line   45)
  * toascii:                               Other Builtins.     (line    6)
*************** Keyword Index
*** 57026,57038 ****
  * toupper:                               Other Builtins.     (line    6)
  * towlower:                              Other Builtins.     (line    6)
  * towupper:                              Other Builtins.     (line    6)
! * traditional C language:                C Dialect Options.  (line  345)
  * transparent_union type attribute:      Common Type Attributes.
!                                                              (line  264)
! * trap_exit function attribute, SH:      SH Function Attributes.
!                                                              (line   68)
  * trapa_handler function attribute, SH:  SH Function Attributes.
                                                               (line   73)
  * trunc:                                 Other Builtins.     (line    6)
  * truncf:                                Other Builtins.     (line    6)
  * truncl:                                Other Builtins.     (line    6)
--- 56671,56683 ----
  * toupper:                               Other Builtins.     (line    6)
  * towlower:                              Other Builtins.     (line    6)
  * towupper:                              Other Builtins.     (line    6)
! * traditional C language:                C Dialect Options.  (line  346)
  * transparent_union type attribute:      Common Type Attributes.
!                                                              (line  261)
  * trapa_handler function attribute, SH:  SH Function Attributes.
                                                               (line   73)
+ * trap_exit function attribute, SH:      SH Function Attributes.
+                                                              (line   68)
  * trunc:                                 Other Builtins.     (line    6)
  * truncf:                                Other Builtins.     (line    6)
  * truncl:                                Other Builtins.     (line    6)
*************** Keyword Index
*** 57041,57101 ****
  * two-stage name lookup:                 Name lookup.        (line    6)
  * type alignment:                        Alignment.          (line    6)
  * type attributes:                       Type Attributes.    (line    6)
- * type_info:                             Vague Linkage.      (line   42)
  * typedef names as function parameters:  Incompatibilities.  (line   97)
  * typeof:                                Typeof.             (line    6)
! * UHK fixed-suffix:                      Fixed-Point.        (line    6)
  * uhk fixed-suffix:                      Fixed-Point.        (line    6)
! * UHR fixed-suffix:                      Fixed-Point.        (line    6)
  * uhr fixed-suffix:                      Fixed-Point.        (line    6)
! * UK fixed-suffix:                       Fixed-Point.        (line    6)
  * uk fixed-suffix:                       Fixed-Point.        (line    6)
! * ULK fixed-suffix:                      Fixed-Point.        (line    6)
  * ulk fixed-suffix:                      Fixed-Point.        (line    6)
  * ULL integer suffix:                    Long Long.          (line    6)
- * ULLK fixed-suffix:                     Fixed-Point.        (line    6)
  * ullk fixed-suffix:                     Fixed-Point.        (line    6)
! * ULLR fixed-suffix:                     Fixed-Point.        (line    6)
  * ullr fixed-suffix:                     Fixed-Point.        (line    6)
! * ULR fixed-suffix:                      Fixed-Point.        (line    6)
  * ulr fixed-suffix:                      Fixed-Point.        (line    6)
  * undefined behavior:                    Bug Criteria.       (line   17)
  * undefined function value:              Bug Criteria.       (line   17)
  * underscores in variables in macros:    Typeof.             (line   46)
  * union:                                 Unnamed Fields.     (line    6)
  * union, casting to a:                   Cast to Union.      (line    6)
  * unions:                                Incompatibilities.  (line  146)
! * unknown pragmas, warning:              Warning Options.    (line  861)
  * unresolved references and -nodefaultlibs: Link Options.    (line   91)
  * unresolved references and -nostdlib:   Link Options.       (line   91)
  * unused function attribute:             Common Function Attributes.
!                                                              (line  812)
  * unused label attribute:                Label Attributes.   (line   30)
  * unused type attribute:                 Common Type Attributes.
!                                                              (line  316)
  * unused variable attribute:             Common Variable Attributes.
!                                                              (line  206)
  * upper function attribute, MSP430:      MSP430 Function Attributes.
                                                               (line   53)
  * upper variable attribute, MSP430:      MSP430 Variable Attributes.
                                                               (line   24)
- * UR fixed-suffix:                       Fixed-Point.        (line    6)
  * ur fixed-suffix:                       Fixed-Point.        (line    6)
! * use_debug_exception_return function attribute, MIPS: MIPS Function Attributes.
!                                                              (line   39)
! * use_shadow_register_set function attribute, MIPS: MIPS Function Attributes.
!                                                              (line   28)
  * used function attribute:               Common Function Attributes.
!                                                              (line  817)
  * used variable attribute:               Common Variable Attributes.
!                                                              (line  211)
  * User stack pointer in interrupts on the Blackfin: Blackfin Function Attributes.
                                                               (line   21)
  * V in constraint:                       Simple Constraints. (line   43)
  * V850 Options:                          V850 Options.       (line    6)
  * vague linkage:                         Vague Linkage.      (line    6)
  * value after longjmp:                   Global Register Variables.
!                                                              (line   76)
  * variable addressability on the M32R/D: M32R/D Variable Attributes.
                                                               (line    9)
  * variable alignment:                    Alignment.          (line    6)
--- 56686,56746 ----
  * two-stage name lookup:                 Name lookup.        (line    6)
  * type alignment:                        Alignment.          (line    6)
  * type attributes:                       Type Attributes.    (line    6)
  * typedef names as function parameters:  Incompatibilities.  (line   97)
  * typeof:                                Typeof.             (line    6)
! * type_info:                             Vague Linkage.      (line   42)
  * uhk fixed-suffix:                      Fixed-Point.        (line    6)
! * UHK fixed-suffix:                      Fixed-Point.        (line    6)
  * uhr fixed-suffix:                      Fixed-Point.        (line    6)
! * UHR fixed-suffix:                      Fixed-Point.        (line    6)
  * uk fixed-suffix:                       Fixed-Point.        (line    6)
! * UK fixed-suffix:                       Fixed-Point.        (line    6)
  * ulk fixed-suffix:                      Fixed-Point.        (line    6)
+ * ULK fixed-suffix:                      Fixed-Point.        (line    6)
  * ULL integer suffix:                    Long Long.          (line    6)
  * ullk fixed-suffix:                     Fixed-Point.        (line    6)
! * ULLK fixed-suffix:                     Fixed-Point.        (line    6)
  * ullr fixed-suffix:                     Fixed-Point.        (line    6)
! * ULLR fixed-suffix:                     Fixed-Point.        (line    6)
  * ulr fixed-suffix:                      Fixed-Point.        (line    6)
+ * ULR fixed-suffix:                      Fixed-Point.        (line    6)
  * undefined behavior:                    Bug Criteria.       (line   17)
  * undefined function value:              Bug Criteria.       (line   17)
  * underscores in variables in macros:    Typeof.             (line   46)
  * union:                                 Unnamed Fields.     (line    6)
  * union, casting to a:                   Cast to Union.      (line    6)
  * unions:                                Incompatibilities.  (line  146)
! * unknown pragmas, warning:              Warning Options.    (line  854)
  * unresolved references and -nodefaultlibs: Link Options.    (line   91)
  * unresolved references and -nostdlib:   Link Options.       (line   91)
  * unused function attribute:             Common Function Attributes.
!                                                              (line  808)
  * unused label attribute:                Label Attributes.   (line   30)
  * unused type attribute:                 Common Type Attributes.
!                                                              (line  314)
  * unused variable attribute:             Common Variable Attributes.
!                                                              (line  205)
  * upper function attribute, MSP430:      MSP430 Function Attributes.
                                                               (line   53)
  * upper variable attribute, MSP430:      MSP430 Variable Attributes.
                                                               (line   24)
  * ur fixed-suffix:                       Fixed-Point.        (line    6)
! * UR fixed-suffix:                       Fixed-Point.        (line    6)
  * used function attribute:               Common Function Attributes.
!                                                              (line  813)
  * used variable attribute:               Common Variable Attributes.
!                                                              (line  210)
  * User stack pointer in interrupts on the Blackfin: Blackfin Function Attributes.
                                                               (line   21)
+ * use_debug_exception_return function attribute, MIPS: MIPS Function Attributes.
+                                                              (line   39)
+ * use_shadow_register_set function attribute, MIPS: MIPS Function Attributes.
+                                                              (line   28)
  * V in constraint:                       Simple Constraints. (line   43)
  * V850 Options:                          V850 Options.       (line    6)
  * vague linkage:                         Vague Linkage.      (line    6)
  * value after longjmp:                   Global Register Variables.
!                                                              (line   74)
  * variable addressability on the M32R/D: M32R/D Variable Attributes.
                                                               (line    9)
  * variable alignment:                    Alignment.          (line    6)
*************** Keyword Index
*** 57113,57144 ****
  * vector function attribute, RX:         RX Function Attributes.
                                                               (line   49)
  * vector_size variable attribute:        Common Variable Attributes.
!                                                              (line  220)
  * version_id function attribute, IA-64:  IA-64 Function Attributes.
                                                               (line   16)
  * vfprintf:                              Other Builtins.     (line    6)
  * vfscanf:                               Other Builtins.     (line    6)
  * visibility function attribute:         Common Function Attributes.
!                                                              (line  827)
  * visibility type attribute:             Common Type Attributes.
!                                                              (line  325)
  * visibility variable attribute:         Common Variable Attributes.
!                                                              (line  244)
  * Visium options:                        Visium Options.     (line    6)
  * VLAs:                                  Variable Length.    (line    6)
  * vliw function attribute, MeP:          MeP Function Attributes.
                                                               (line   30)
  * void pointers, arithmetic:             Pointer Arith.      (line    6)
  * void, size of pointer to:              Pointer Arith.      (line    6)
- * volatile access <1>:                   C++ Volatiles.      (line    6)
  * volatile access:                       Volatiles.          (line    6)
  * volatile applied to function:          Function Attributes.
                                                               (line    6)
  * volatile asm:                          Extended Asm.       (line  109)
- * volatile read <1>:                     C++ Volatiles.      (line    6)
  * volatile read:                         Volatiles.          (line    6)
! * volatile write <1>:                    C++ Volatiles.      (line    6)
  * volatile write:                        Volatiles.          (line    6)
  * vprintf:                               Other Builtins.     (line    6)
  * vscanf:                                Other Builtins.     (line    6)
  * vsnprintf:                             Other Builtins.     (line    6)
--- 56758,56789 ----
  * vector function attribute, RX:         RX Function Attributes.
                                                               (line   49)
  * vector_size variable attribute:        Common Variable Attributes.
!                                                              (line  219)
  * version_id function attribute, IA-64:  IA-64 Function Attributes.
                                                               (line   16)
  * vfprintf:                              Other Builtins.     (line    6)
  * vfscanf:                               Other Builtins.     (line    6)
  * visibility function attribute:         Common Function Attributes.
!                                                              (line  823)
  * visibility type attribute:             Common Type Attributes.
!                                                              (line  323)
  * visibility variable attribute:         Common Variable Attributes.
!                                                              (line  242)
  * Visium options:                        Visium Options.     (line    6)
  * VLAs:                                  Variable Length.    (line    6)
  * vliw function attribute, MeP:          MeP Function Attributes.
                                                               (line   30)
  * void pointers, arithmetic:             Pointer Arith.      (line    6)
  * void, size of pointer to:              Pointer Arith.      (line    6)
  * volatile access:                       Volatiles.          (line    6)
+ * volatile access <1>:                   C++ Volatiles.      (line    6)
  * volatile applied to function:          Function Attributes.
                                                               (line    6)
  * volatile asm:                          Extended Asm.       (line  109)
  * volatile read:                         Volatiles.          (line    6)
! * volatile read <1>:                     C++ Volatiles.      (line    6)
  * volatile write:                        Volatiles.          (line    6)
+ * volatile write <1>:                    C++ Volatiles.      (line    6)
  * vprintf:                               Other Builtins.     (line    6)
  * vscanf:                                Other Builtins.     (line    6)
  * vsnprintf:                             Other Builtins.     (line    6)
*************** Keyword Index
*** 57146,57185 ****
  * vsscanf:                               Other Builtins.     (line    6)
  * vtable:                                Vague Linkage.      (line   27)
  * VxWorks Options:                       VxWorks Options.    (line    6)
- * W floating point suffix:               Floating Types.     (line    6)
  * w floating point suffix:               Floating Types.     (line    6)
  * wakeup function attribute, MSP430:     MSP430 Function Attributes.
                                                               (line   45)
  * warm function attribute, NDS32:        NDS32 Function Attributes.
!                                                              (line   57)
! * warn_unused type attribute:            C++ Attributes.     (line   77)
! * warn_unused_result function attribute: Common Function Attributes.
!                                                              (line  928)
  * warning for comparison of signed and unsigned values: Warning Options.
!                                                              (line 1501)
  * warning for overloaded virtual function: C++ Dialect Options.
!                                                              (line  670)
  * warning for reordering of member initializers: C++ Dialect Options.
!                                                              (line  586)
! * warning for unknown pragmas:           Warning Options.    (line  861)
  * warning function attribute:            Common Function Attributes.
                                                               (line  197)
  * warning GCC_COLORS capability:         Diagnostic Message Formatting Options.
                                                               (line   72)
  * warning messages:                      Warning Options.    (line    6)
! * warnings from system headers:          Warning Options.    (line 1093)
  * warnings vs errors:                    Warnings and Errors.
                                                               (line    6)
  * weak function attribute:               Common Function Attributes.
!                                                              (line  945)
  * weak variable attribute:               Common Variable Attributes.
!                                                              (line  249)
  * weakref function attribute:            Common Function Attributes.
!                                                              (line  954)
  * whitespace:                            Incompatibilities.  (line  112)
  * Windows Options for x86:               x86 Windows Options.
                                                               (line    6)
! * X in constraint:                       Simple Constraints. (line  124)
  * X3.159-1989:                           Standards.          (line   13)
  * x86 named address spaces:              Named Address Spaces.
                                                               (line  168)
--- 56791,56830 ----
  * vsscanf:                               Other Builtins.     (line    6)
  * vtable:                                Vague Linkage.      (line   27)
  * VxWorks Options:                       VxWorks Options.    (line    6)
  * w floating point suffix:               Floating Types.     (line    6)
+ * W floating point suffix:               Floating Types.     (line    6)
  * wakeup function attribute, MSP430:     MSP430 Function Attributes.
                                                               (line   45)
  * warm function attribute, NDS32:        NDS32 Function Attributes.
!                                                              (line   52)
  * warning for comparison of signed and unsigned values: Warning Options.
!                                                              (line 1486)
  * warning for overloaded virtual function: C++ Dialect Options.
!                                                              (line  664)
  * warning for reordering of member initializers: C++ Dialect Options.
!                                                              (line  582)
! * warning for unknown pragmas:           Warning Options.    (line  854)
  * warning function attribute:            Common Function Attributes.
                                                               (line  197)
  * warning GCC_COLORS capability:         Diagnostic Message Formatting Options.
                                                               (line   72)
  * warning messages:                      Warning Options.    (line    6)
! * warnings from system headers:          Warning Options.    (line 1085)
  * warnings vs errors:                    Warnings and Errors.
                                                               (line    6)
+ * warn_unused type attribute:            C++ Attributes.     (line   79)
+ * warn_unused_result function attribute: Common Function Attributes.
+                                                              (line  923)
  * weak function attribute:               Common Function Attributes.
!                                                              (line  940)
  * weak variable attribute:               Common Variable Attributes.
!                                                              (line  247)
  * weakref function attribute:            Common Function Attributes.
!                                                              (line  949)
  * whitespace:                            Incompatibilities.  (line  112)
  * Windows Options for x86:               x86 Windows Options.
                                                               (line    6)
! * X in constraint:                       Simple Constraints. (line  122)
  * X3.159-1989:                           Standards.          (line   13)
  * x86 named address spaces:              Named Address Spaces.
                                                               (line  168)
*************** Keyword Index
*** 57206,57603 ****
  
  
  Tag Table:
! Node: Top2110
! Node: G++ and GCC4015
! Node: Standards6084
! Node: Invoking GCC18896
! Node: Option Summary23098
! Node: Overall Options69210
! Node: Invoking G++83730
! Node: C Dialect Options85253
! Node: C++ Dialect Options103162
! Node: Objective-C and Objective-C++ Dialect Options135921
! Node: Diagnostic Message Formatting Options147166
! Node: Warning Options151993
! Node: Debugging Options239858
! Node: Optimize Options254120
! Ref: Type-punning315199
! Node: Instrumentation Options401734
! Node: Preprocessor Options433928
! Ref: Wtrigraphs438717
! Ref: dashMF443465
! Ref: fdollars-in-identifiers454329
! Node: Assembler Options464572
! Node: Link Options465264
! Ref: Link Options-Footnote-1478857
! Node: Directory Options479191
! Node: Code Gen Options485582
! Node: Developer Options510446
! Node: Submodel Options551352
! Node: AArch64 Options553067
! Ref: aarch64-feature-modifiers560900
! Node: Adapteva Epiphany Options561783
! Node: ARC Options567733
! Node: ARM Options584822
! Node: AVR Options603107
! Node: Blackfin Options624497
! Node: C6X Options632512
! Node: CRIS Options634055
! Node: CR16 Options637799
! Node: Darwin Options638706
! Node: DEC Alpha Options646147
! Node: FR30 Options657735
! Node: FT32 Options658301
! Node: FRV Options659027
! Node: GNU/Linux Options665746
! Node: H8/300 Options667128
! Node: HPPA Options668578
! Node: IA-64 Options677767
! Node: LM32 Options685893
! Node: M32C Options686417
! Node: M32R/D Options687691
! Node: M680x0 Options691237
! Node: MCore Options705283
! Node: MeP Options706786
! Node: MicroBlaze Options710746
! Node: MIPS Options713542
! Node: MMIX Options748454
! Node: MN10300 Options750936
! Node: Moxie Options753479
! Node: MSP430 Options753967
! Node: NDS32 Options758677
! Node: Nios II Options760571
! Node: Nvidia PTX Options771492
! Node: PDP-11 Options772016
! Node: picoChip Options773713
! Node: PowerPC Options775854
! Node: RL78 Options776075
! Node: RS/6000 and PowerPC Options779171
! Node: RX Options821060
! Node: S/390 and zSeries Options829663
! Node: Score Options839851
! Node: SH Options840693
! Node: Solaris 2 Options855845
! Node: SPARC Options857373
! Node: SPU Options871495
! Node: System V Options876432
! Node: TILE-Gx Options877258
! Node: TILEPro Options878276
! Node: V850 Options878780
! Node: VAX Options885472
! Node: Visium Options886010
! Node: VMS Options888318
! Node: VxWorks Options889132
! Node: x86 Options890284
! Node: x86 Windows Options940253
! Node: Xstormy16 Options943061
! Node: Xtensa Options943355
! Node: zSeries Options948504
! Node: Spec Files948700
! Node: Environment Variables970578
! Node: Precompiled Headers978573
! Node: C Implementation984581
! Node: Translation implementation986270
! Node: Environment implementation986862
! Node: Identifiers implementation987417
! Node: Characters implementation988504
! Node: Integers implementation992155
! Node: Floating point implementation994205
! Node: Arrays and pointers implementation997270
! Ref: Arrays and pointers implementation-Footnote-1998729
! Node: Hints implementation998853
! Node: Structures unions enumerations and bit-fields implementation1000350
! Node: Qualifiers implementation1002575
! Node: Declarators implementation1004355
! Node: Statements implementation1004697
! Node: Preprocessing directives implementation1005024
! Node: Library functions implementation1007346
! Node: Architecture implementation1007996
! Node: Locale-specific behavior implementation1009638
! Node: C++ Implementation1009943
! Node: Conditionally-supported behavior1011225
! Node: Exception handling1011843
! Node: C Extensions1012252
! Node: Statement Exprs1017474
! Node: Local Labels1021950
! Node: Labels as Values1024923
! Ref: Labels as Values-Footnote-11027448
! Node: Nested Functions1027631
! Node: Constructing Calls1031589
! Node: Typeof1036307
! Node: Conditionals1040235
! Node: __int1281041125
! Node: Long Long1041649
! Node: Complex1043125
! Node: Floating Types1045710
! Node: Half-Precision1047985
! Node: Decimal Float1050167
! Node: Hex Floats1052020
! Node: Fixed-Point1053056
! Node: Named Address Spaces1056336
! Ref: AVR Named Address Spaces1057022
! Node: Zero Length1063144
! Node: Empty Structures1066183
! Node: Variable Length1066589
! Node: Variadic Macros1069307
! Node: Escaped Newlines1071685
! Node: Subscripting1072546
! Node: Pointer Arith1073272
! Node: Pointers to Arrays1073846
! Node: Initializers1074590
! Node: Compound Literals1075091
! Node: Designated Inits1078438
! Node: Case Ranges1082176
! Node: Cast to Union1082857
! Node: Mixed Declarations1083948
! Node: Function Attributes1084458
! Node: Common Function Attributes1087529
! Node: AArch64 Function Attributes1133668
! Node: ARC Function Attributes1138817
! Node: ARM Function Attributes1140509
! Node: AVR Function Attributes1144167
! Node: Blackfin Function Attributes1147638
! Node: CR16 Function Attributes1150134
! Node: Epiphany Function Attributes1150661
! Node: H8/300 Function Attributes1153412
! Node: IA-64 Function Attributes1154608
! Node: M32C Function Attributes1155650
! Node: M32R/D Function Attributes1157985
! Node: m68k Function Attributes1159458
! Node: MCORE Function Attributes1160402
! Node: MeP Function Attributes1161210
! Node: MicroBlaze Function Attributes1162511
! Node: Microsoft Windows Function Attributes1164017
! Node: MIPS Function Attributes1168600
! Node: MSP430 Function Attributes1174157
! Node: NDS32 Function Attributes1178002
! Node: Nios II Function Attributes1180421
! Node: Nvidia PTX Function Attributes1181715
! Node: PowerPC Function Attributes1182330
! Node: RL78 Function Attributes1189337
! Node: RX Function Attributes1190574
! Node: S/390 Function Attributes1193110
! Node: SH Function Attributes1194929
! Node: SPU Function Attributes1198353
! Node: Symbian OS Function Attributes1199158
! Node: V850 Function Attributes1199495
! Node: Visium Function Attributes1200040
! Node: x86 Function Attributes1200568
! Node: Xstormy16 Function Attributes1209323
! Node: Variable Attributes1209830
! Node: Common Variable Attributes1211214
! Node: AVR Variable Attributes1222219
! Node: Blackfin Variable Attributes1224856
! Node: H8/300 Variable Attributes1225715
! Node: IA-64 Variable Attributes1226789
! Node: M32R/D Variable Attributes1227540
! Node: MeP Variable Attributes1228323
! Node: Microsoft Windows Variable Attributes1230426
! Node: MSP430 Variable Attributes1232885
! Node: PowerPC Variable Attributes1234081
! Node: RL78 Variable Attributes1234634
! Node: SPU Variable Attributes1235052
! Node: V850 Variable Attributes1235417
! Node: x86 Variable Attributes1236049
! Node: Xstormy16 Variable Attributes1237105
! Node: Type Attributes1237680
! Node: Common Type Attributes1238956
! Node: ARM Type Attributes1254440
! Node: MeP Type Attributes1255224
! Node: PowerPC Type Attributes1255626
! Node: SPU Type Attributes1256615
! Node: x86 Type Attributes1257034
! Node: Label Attributes1258022
! Node: Enumerator Attributes1259913
! Node: Attribute Syntax1261186
! Node: Function Prototypes1272186
! Node: C++ Comments1273967
! Node: Dollar Signs1274486
! Node: Character Escapes1274951
! Node: Alignment1275235
! Node: Inline1276607
! Node: Volatiles1281408
! Node: Using Assembly Language with C1284308
! Node: Basic Asm1285545
! Node: Extended Asm1290535
! Ref: Volatile1294332
! Ref: AssemblerTemplate1298404
! Ref: OutputOperands1302629
! Ref: FlagOutputOperands1309541
! Ref: InputOperands1311556
! Ref: Clobbers1315791
! Ref: GotoLabels1319097
! Ref: x86Operandmodifiers1321230
! Ref: x86floatingpointasmoperands1323474
! Node: Constraints1326804
! Node: Simple Constraints1327910
! Node: Multi-Alternative1335235
! Node: Modifiers1336910
! Node: Machine Constraints1339707
! Node: Asm Labels1398683
! Node: Explicit Register Variables1400303
! Ref: Explicit Reg Vars1400517
! Node: Global Register Variables1401126
! Ref: Global Reg Vars1401334
! Node: Local Register Variables1405176
! Ref: Local Reg Vars1405396
! Node: Size of an asm1408706
! Node: Alternate Keywords1409961
! Node: Incomplete Enums1411460
! Node: Function Names1412216
! Node: Return Address1413819
! Node: Vector Extensions1417760
! Node: Offsetof1425045
! Node: __sync Builtins1425886
! Node: __atomic Builtins1432331
! Node: Integer Overflow Builtins1445821
! Node: x86 specific memory model extensions for transactional memory1450011
! Node: Object Size Checking1451282
! Node: Pointer Bounds Checker builtins1456788
! Node: Cilk Plus Builtins1462794
! Node: Other Builtins1463711
! Node: Target Builtins1498276
! Node: AArch64 Built-in Functions1499768
! Node: Alpha Built-in Functions1500223
! Node: Altera Nios II Built-in Functions1503271
! Node: ARC Built-in Functions1507638
! Node: ARC SIMD Built-in Functions1512849
! Node: ARM iWMMXt Built-in Functions1521745
! Node: ARM C Language Extensions (ACLE)1528741
! Node: ARM Floating Point Status and Control Intrinsics1530018
! Node: AVR Built-in Functions1530494
! Node: Blackfin Built-in Functions1533593
! Node: FR-V Built-in Functions1534212
! Node: Argument Types1535078
! Node: Directly-mapped Integer Functions1536832
! Node: Directly-mapped Media Functions1537916
! Node: Raw read/write Functions1544950
! Node: Other Built-in Functions1545864
! Node: MIPS DSP Built-in Functions1547050
! Node: MIPS Paired-Single Support1559548
! Node: MIPS Loongson Built-in Functions1561047
! Node: Paired-Single Arithmetic1567567
! Node: Paired-Single Built-in Functions1568515
! Node: MIPS-3D Built-in Functions1571182
! Node: Other MIPS Built-in Functions1576559
! Node: MSP430 Built-in Functions1577564
! Node: NDS32 Built-in Functions1578965
! Node: picoChip Built-in Functions1580258
! Node: PowerPC Built-in Functions1581602
! Node: PowerPC AltiVec/VSX Built-in Functions1594393
! Node: PowerPC Hardware Transactional Memory Built-in Functions1740916
! Node: RX Built-in Functions1749407
! Node: S/390 System z Built-in Functions1753440
! Node: SH Built-in Functions1758675
! Node: SPARC VIS Built-in Functions1760403
! Node: SPU Built-in Functions1767329
! Node: TI C6X Built-in Functions1769045
! Node: TILE-Gx Built-in Functions1770069
! Node: TILEPro Built-in Functions1771186
! Node: x86 Built-in Functions1772284
! Node: x86 transactional memory intrinsics1832249
! Node: Target Format Checks1835469
! Node: Solaris Format Checks1835901
! Node: Darwin Format Checks1836327
! Node: Pragmas1837145
! Node: AArch64 Pragmas1837918
! Node: ARM Pragmas1838375
! Node: M32C Pragmas1839002
! Node: MeP Pragmas1840076
! Node: RS/6000 and PowerPC Pragmas1842145
! Node: S/390 Pragmas1842885
! Node: Darwin Pragmas1843451
! Node: Solaris Pragmas1844504
! Node: Symbol-Renaming Pragmas1845665
! Node: Structure-Layout Pragmas1847278
! Node: Weak Pragmas1849565
! Node: Diagnostic Pragmas1850300
! Node: Visibility Pragmas1853407
! Node: Push/Pop Macro Pragmas1854092
! Node: Function Specific Option Pragmas1855064
! Node: Loop-Specific Pragmas1856909
! Node: Unnamed Fields1857999
! Node: Thread-Local1860197
! Node: C99 Thread-Local Edits1862302
! Node: C++98 Thread-Local Edits1864314
! Node: Binary constants1867758
! Node: C++ Extensions1868429
! Node: C++ Volatiles1870207
! Node: Restricted Pointers1872555
! Node: Vague Linkage1874146
! Node: C++ Interface1877770
! Ref: C++ Interface-Footnote-11881563
! Node: Template Instantiation1881699
! Node: Bound member functions1889183
! Node: C++ Attributes1890715
! Node: Function Multiversioning1895157
! Node: Namespace Association1896972
! Node: Type Traits1898352
! Node: C++ Concepts1904839
! Node: Java Exceptions1906330
! Node: Deprecated Features1907721
! Node: Backwards Compatibility1910686
! Node: Objective-C1912038
! Node: GNU Objective-C runtime API1912647
! Node: Modern GNU Objective-C runtime API1913654
! Node: Traditional GNU Objective-C runtime API1916091
! Node: Executing code before main1916819
! Node: What you can and what you cannot do in +load1919561
! Node: Type encoding1921933
! Node: Legacy type encoding1927009
! Node: @encode1928100
! Node: Method signatures1928645
! Node: Garbage Collection1930640
! Node: Constant string objects1933329
! Node: compatibility_alias1935837
! Node: Exceptions1936563
! Node: Synchronization1939274
! Node: Fast enumeration1940458
! Node: Using fast enumeration1940770
! Node: c99-like fast enumeration syntax1941981
! Node: Fast enumeration details1942684
! Node: Fast enumeration protocol1945025
! Node: Messaging with the GNU Objective-C runtime1948177
! Node: Dynamically registering methods1949548
! Node: Forwarding hook1951239
! Node: Compatibility1954279
! Node: Gcov1960846
! Node: Gcov Intro1961381
! Node: Invoking Gcov1964099
! Node: Gcov and Optimization1979028
! Node: Gcov Data Files1982028
! Node: Cross-profiling1983423
! Node: Gcov-tool1985274
! Node: Gcov-tool Intro1985699
! Node: Invoking Gcov-tool1987660
! Node: Gcov-dump1990206
! Node: Gcov-dump Intro1990528
! Node: Invoking Gcov-dump1990795
! Node: Trouble1991464
! Node: Actual Bugs1992881
! Node: Interoperation1993328
! Node: Incompatibilities2000220
! Node: Fixed Headers2008371
! Node: Standard Libraries2010034
! Node: Disappointments2011406
! Node: C++ Misunderstandings2015764
! Node: Static Definitions2016575
! Node: Name lookup2017628
! Ref: Name lookup-Footnote-12022406
! Node: Temporaries2022593
! Node: Copy Assignment2024569
! Node: Non-bugs2026376
! Node: Warnings and Errors2036883
! Node: Bugs2038645
! Node: Bug Criteria2039112
! Node: Bug Reporting2041322
! Node: Service2041543
! Node: Contributing2042362
! Node: Funding2043102
! Node: GNU Project2045591
! Node: Copying2046237
! Node: GNU Free Documentation License2083765
! Node: Contributors2108902
! Node: Option Index2147711
! Node: Keyword Index2385576
  
  End Tag Table
--- 56851,57248 ----
  
  
  Tag Table:
! Node: Top2057
! Node: G++ and GCC3959
! Node: Standards6016
! Node: Invoking GCC18832
! Node: Option Summary23033
! Node: Overall Options69297
! Node: Invoking G++83766
! Node: C Dialect Options85289
! Node: C++ Dialect Options103187
! Node: Objective-C and Objective-C++ Dialect Options135911
! Node: Diagnostic Message Formatting Options147155
! Node: Warning Options151988
! Node: Debugging Options239810
! Node: Optimize Options254072
! Ref: Type-punning315157
! Node: Instrumentation Options401998
! Node: Preprocessor Options434223
! Ref: Wtrigraphs439013
! Ref: dashMF443763
! Ref: fdollars-in-identifiers454644
! Node: Assembler Options464845
! Node: Link Options465536
! Ref: Link Options-Footnote-1479114
! Node: Directory Options479450
! Node: Code Gen Options485833
! Node: Developer Options510676
! Node: Submodel Options551697
! Node: AArch64 Options553412
! Ref: aarch64-feature-modifiers561246
! Node: Adapteva Epiphany Options562124
! Node: ARC Options568071
! Node: ARM Options585183
! Node: AVR Options603467
! Node: Blackfin Options624997
! Node: C6X Options633015
! Node: CRIS Options634558
! Node: CR16 Options638297
! Node: Darwin Options639208
! Node: DEC Alpha Options646648
! Node: FR30 Options658264
! Node: FT32 Options658829
! Node: FRV Options659554
! Node: GNU/Linux Options666318
! Node: H8/300 Options667699
! Node: HPPA Options669151
! Node: IA-64 Options678683
! Node: LM32 Options686811
! Node: M32C Options687334
! Node: M32R/D Options688607
! Node: M680x0 Options692152
! Node: MCore Options706187
! Node: MeP Options707689
! Node: MicroBlaze Options711649
! Node: MIPS Options714451
! Node: MMIX Options749303
! Node: MN10300 Options751780
! Node: Moxie Options754321
! Node: MSP430 Options754808
! Node: NDS32 Options759512
! Node: Nios II Options761406
! Node: Nvidia PTX Options772339
! Node: PDP-11 Options772862
! Node: picoChip Options774559
! Node: PowerPC Options776697
! Node: RL78 Options776918
! Node: RS/6000 and PowerPC Options780013
! Node: RX Options822027
! Node: S/390 and zSeries Options830629
! Node: Score Options840806
! Node: SH Options841655
! Node: Solaris 2 Options856796
! Node: SPARC Options858318
! Node: SPU Options872439
! Node: System V Options877378
! Node: TILE-Gx Options878204
! Node: TILEPro Options879222
! Node: V850 Options879726
! Node: VAX Options886413
! Node: Visium Options886951
! Node: VMS Options889259
! Node: VxWorks Options890075
! Node: x86 Options891227
! Node: x86 Windows Options942843
! Node: Xstormy16 Options945648
! Node: Xtensa Options945942
! Node: zSeries Options951091
! Node: Spec Files951287
! Node: Environment Variables973110
! Node: Precompiled Headers981107
! Node: C Implementation987110
! Node: Translation implementation988800
! Node: Environment implementation989391
! Node: Identifiers implementation989945
! Node: Characters implementation991031
! Node: Integers implementation994681
! Node: Floating point implementation996730
! Node: Arrays and pointers implementation999793
! Ref: Arrays and pointers implementation-Footnote-11001253
! Node: Hints implementation1001379
! Node: Structures unions enumerations and bit-fields implementation1002874
! Node: Qualifiers implementation1005098
! Node: Declarators implementation1006878
! Node: Statements implementation1007219
! Node: Preprocessing directives implementation1007545
! Node: Library functions implementation1009866
! Node: Architecture implementation1010515
! Node: Locale-specific behavior implementation1012160
! Node: C++ Implementation1012465
! Node: Conditionally-supported behavior1013748
! Node: Exception handling1014365
! Node: C Extensions1014773
! Node: Statement Exprs1019993
! Node: Local Labels1024470
! Node: Labels as Values1027443
! Ref: Labels as Values-Footnote-11029970
! Node: Nested Functions1030155
! Node: Constructing Calls1034113
! Node: Typeof1038830
! Node: Conditionals1042759
! Node: __int1281043648
! Node: Long Long1044173
! Node: Complex1045649
! Node: Floating Types1048233
! Node: Half-Precision1050508
! Node: Decimal Float1052693
! Node: Hex Floats1054547
! Node: Fixed-Point1055584
! Node: Named Address Spaces1058842
! Ref: AVR Named Address Spaces1059528
! Node: Zero Length1065652
! Node: Empty Structures1068692
! Node: Variable Length1069098
! Node: Variadic Macros1071816
! Node: Escaped Newlines1074194
! Node: Subscripting1075055
! Node: Pointer Arith1075780
! Node: Pointers to Arrays1076354
! Node: Initializers1077099
! Node: Compound Literals1077600
! Node: Designated Inits1080946
! Node: Case Ranges1084684
! Node: Cast to Union1085365
! Node: Mixed Declarations1086455
! Node: Function Attributes1086965
! Node: Common Function Attributes1090036
! Node: AArch64 Function Attributes1136157
! Node: ARC Function Attributes1141305
! Node: ARM Function Attributes1142997
! Node: AVR Function Attributes1146658
! Node: Blackfin Function Attributes1150133
! Node: CR16 Function Attributes1152631
! Node: Epiphany Function Attributes1153158
! Node: H8/300 Function Attributes1155910
! Node: IA-64 Function Attributes1157106
! Node: M32C Function Attributes1158148
! Node: M32R/D Function Attributes1160486
! Node: m68k Function Attributes1161960
! Node: MCORE Function Attributes1162904
! Node: MeP Function Attributes1163715
! Node: MicroBlaze Function Attributes1165016
! Node: Microsoft Windows Function Attributes1166523
! Node: MIPS Function Attributes1171092
! Node: MSP430 Function Attributes1176655
! Node: NDS32 Function Attributes1180503
! Node: Nios II Function Attributes1182927
! Node: Nvidia PTX Function Attributes1184224
! Node: PowerPC Function Attributes1184839
! Node: RL78 Function Attributes1191892
! Node: RX Function Attributes1193132
! Node: S/390 Function Attributes1195671
! Node: SH Function Attributes1197499
! Node: SPU Function Attributes1200920
! Node: Symbian OS Function Attributes1201728
! Node: V850 Function Attributes1202065
! Node: Visium Function Attributes1202610
! Node: x86 Function Attributes1203138
! Node: Xstormy16 Function Attributes1212992
! Node: Variable Attributes1213499
! Node: Common Variable Attributes1214883
! Node: AVR Variable Attributes1225877
! Node: Blackfin Variable Attributes1228515
! Node: H8/300 Variable Attributes1229373
! Node: IA-64 Variable Attributes1230446
! Node: M32R/D Variable Attributes1231197
! Node: MeP Variable Attributes1231980
! Node: Microsoft Windows Variable Attributes1234073
! Node: MSP430 Variable Attributes1236526
! Node: PowerPC Variable Attributes1237722
! Node: RL78 Variable Attributes1238275
! Node: SPU Variable Attributes1238693
! Node: V850 Variable Attributes1239058
! Node: x86 Variable Attributes1239690
! Node: Xstormy16 Variable Attributes1240746
! Node: Type Attributes1241316
! Node: Common Type Attributes1242593
! Node: ARM Type Attributes1258069
! Node: MeP Type Attributes1258854
! Node: PowerPC Type Attributes1259256
! Node: SPU Type Attributes1260245
! Node: x86 Type Attributes1260664
! Node: Label Attributes1261652
! Node: Enumerator Attributes1263542
! Node: Attribute Syntax1264814
! Node: Function Prototypes1275811
! Node: C++ Comments1277591
! Node: Dollar Signs1278110
! Node: Character Escapes1278575
! Node: Alignment1278859
! Node: Inline1280231
! Node: Volatiles1285032
! Node: Using Assembly Language with C1287931
! Node: Basic Asm1289168
! Node: Extended Asm1294167
! Ref: Volatile1297971
! Ref: AssemblerTemplate1302056
! Ref: OutputOperands1306294
! Ref: FlagOutputOperands1313223
! Ref: InputOperands1315252
! Ref: Clobbers1319498
! Ref: GotoLabels1322814
! Ref: x86Operandmodifiers1324949
! Ref: x86floatingpointasmoperands1327212
! Node: Constraints1330541
! Node: Simple Constraints1331647
! Node: Multi-Alternative1338961
! Node: Modifiers1340636
! Node: Machine Constraints1343434
! Node: Asm Labels1403008
! Node: Explicit Register Variables1404628
! Ref: Explicit Reg Vars1404842
! Node: Global Register Variables1405451
! Ref: Global Reg Vars1405659
! Node: Local Register Variables1409511
! Ref: Local Reg Vars1409731
! Node: Size of an asm1413038
! Node: Alternate Keywords1414292
! Node: Incomplete Enums1415791
! Node: Function Names1416547
! Node: Return Address1418150
! Node: Vector Extensions1422091
! Node: Offsetof1429386
! Node: __sync Builtins1430219
! Node: __atomic Builtins1436660
! Node: Integer Overflow Builtins1450141
! Node: x86 specific memory model extensions for transactional memory1454326
! Node: Object Size Checking1455597
! Node: Pointer Bounds Checker builtins1461103
! Node: Cilk Plus Builtins1467109
! Node: Other Builtins1468015
! Node: Target Builtins1502556
! Node: AArch64 Built-in Functions1504048
! Node: Alpha Built-in Functions1504503
! Node: Altera Nios II Built-in Functions1507551
! Node: ARC Built-in Functions1511920
! Node: ARC SIMD Built-in Functions1517132
! Node: ARM iWMMXt Built-in Functions1526028
! Node: ARM C Language Extensions (ACLE)1533024
! Node: ARM Floating Point Status and Control Intrinsics1534301
! Node: AVR Built-in Functions1534777
! Node: Blackfin Built-in Functions1537884
! Node: FR-V Built-in Functions1538503
! Node: Argument Types1539371
! Node: Directly-mapped Integer Functions1541125
! Node: Directly-mapped Media Functions1542209
! Node: Raw read/write Functions1550415
! Node: Other Built-in Functions1551323
! Node: MIPS DSP Built-in Functions1552509
! Node: MIPS Paired-Single Support1565006
! Node: MIPS Loongson Built-in Functions1566505
! Node: Paired-Single Arithmetic1573020
! Node: Paired-Single Built-in Functions1573968
! Node: MIPS-3D Built-in Functions1576635
! Node: Other MIPS Built-in Functions1582013
! Node: MSP430 Built-in Functions1583018
! Node: NDS32 Built-in Functions1584419
! Node: picoChip Built-in Functions1585712
! Node: PowerPC Built-in Functions1587055
! Node: PowerPC AltiVec/VSX Built-in Functions1600758
! Node: PowerPC Hardware Transactional Memory Built-in Functions1747281
! Node: RX Built-in Functions1755772
! Node: S/390 System z Built-in Functions1759805
! Node: SH Built-in Functions1765035
! Node: SPARC VIS Built-in Functions1766763
! Node: SPU Built-in Functions1773688
! Node: TI C6X Built-in Functions1775405
! Node: TILE-Gx Built-in Functions1776430
! Node: TILEPro Built-in Functions1777549
! Node: x86 Built-in Functions1778649
! Node: x86 transactional memory intrinsics1838675
! Node: Target Format Checks1841895
! Node: Solaris Format Checks1842327
! Node: Darwin Format Checks1842753
! Node: Pragmas1843571
! Node: AArch64 Pragmas1844344
! Node: ARM Pragmas1844801
! Node: M32C Pragmas1845428
! Node: MeP Pragmas1846500
! Node: RS/6000 and PowerPC Pragmas1848568
! Node: S/390 Pragmas1849308
! Node: Darwin Pragmas1849874
! Node: Solaris Pragmas1850927
! Node: Symbol-Renaming Pragmas1852091
! Node: Structure-Layout Pragmas1853707
! Node: Weak Pragmas1855987
! Node: Diagnostic Pragmas1856722
! Node: Visibility Pragmas1859831
! Node: Push/Pop Macro Pragmas1860516
! Node: Function Specific Option Pragmas1861489
! Node: Loop-Specific Pragmas1863337
! Node: Unnamed Fields1864430
! Node: Thread-Local1866627
! Node: C99 Thread-Local Edits1868732
! Node: C++98 Thread-Local Edits1870730
! Node: Binary constants1874175
! Node: C++ Extensions1874846
! Node: C++ Volatiles1876624
! Node: Restricted Pointers1878972
! Node: Vague Linkage1880563
! Node: C++ Interface1884186
! Ref: C++ Interface-Footnote-11887983
! Node: Template Instantiation1888121
! Node: Bound member functions1895604
! Node: C++ Attributes1897136
! Node: Function Multiversioning1901580
! Node: Namespace Association1903397
! Node: Type Traits1904777
! Node: C++ Concepts1911259
! Node: Java Exceptions1912754
! Node: Deprecated Features1914145
! Node: Backwards Compatibility1917112
! Node: Objective-C1918459
! Node: GNU Objective-C runtime API1919066
! Node: Modern GNU Objective-C runtime API1920073
! Node: Traditional GNU Objective-C runtime API1922509
! Node: Executing code before main1923236
! Node: What you can and what you cannot do in +load1925980
! Node: Type encoding1928350
! Node: Legacy type encoding1933377
! Node: @encode1934467
! Node: Method signatures1935012
! Node: Garbage Collection1937004
! Node: Constant string objects1939694
! Node: compatibility_alias1942203
! Node: Exceptions1942928
! Node: Synchronization1945638
! Node: Fast enumeration1946822
! Node: Using fast enumeration1947134
! Node: c99-like fast enumeration syntax1948345
! Node: Fast enumeration details1949048
! Node: Fast enumeration protocol1951388
! Node: Messaging with the GNU Objective-C runtime1954540
! Node: Dynamically registering methods1955912
! Node: Forwarding hook1957603
! Node: Compatibility1960643
! Node: Gcov1967199
! Node: Gcov Intro1967734
! Node: Invoking Gcov1970452
! Node: Gcov and Optimization1985721
! Node: Gcov Data Files1988859
! Node: Cross-profiling1990254
! Node: Gcov-tool1992108
! Node: Gcov-tool Intro1992533
! Node: Invoking Gcov-tool1994503
! Node: Gcov-dump1997082
! Node: Gcov-dump Intro1997404
! Node: Invoking Gcov-dump1997671
! Node: Trouble1998340
! Node: Actual Bugs1999757
! Node: Interoperation2000204
! Node: Incompatibilities2007095
! Node: Fixed Headers2015247
! Node: Standard Libraries2016905
! Node: Disappointments2018277
! Node: C++ Misunderstandings2022636
! Node: Static Definitions2023447
! Node: Name lookup2024500
! Ref: Name lookup-Footnote-12029280
! Node: Temporaries2029469
! Node: Copy Assignment2031445
! Node: Non-bugs2033252
! Node: Warnings and Errors2043758
! Node: Bugs2045520
! Node: Bug Criteria2045987
! Node: Bug Reporting2048197
! Node: Service2048418
! Node: Contributing2049237
! Node: Funding2049977
! Node: GNU Project2052467
! Node: Copying2053113
! Node: GNU Free Documentation License2090622
! Node: Contributors2115740
! Node: Option Index2154546
! Node: Keyword Index2394373
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/doc/gccinstall.info gcc-6.5.0/gcc/doc/gccinstall.info
*** gcc-6.4.0/gcc/doc/gccinstall.info	Tue Jul  4 09:27:46 2017
--- gcc-6.5.0/gcc/doc/gccinstall.info	Fri Oct 26 10:07:27 2018
***************
*** 1,5 ****
! This is doc/gccinstall.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/doc/install.texi.
  
  Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
--- 1,5 ----
! This is gccinstall.info, produced by makeinfo version 6.4 from
! install.texi.
  
  Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
*************** is included in the section entitled "GNU
*** 17,24 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
  
     Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
--- 17,28 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
! INFO-DIR-SECTION Software development
! START-INFO-DIR-ENTRY
! * gccinstall: (gccinstall).    Installing the GNU Compiler Collection.
! END-INFO-DIR-ENTRY
  
     Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
*************** is included in the section entitled "GNU
*** 36,48 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
! INFO-DIR-SECTION Software development
! START-INFO-DIR-ENTRY
! * gccinstall: (gccinstall).    Installing the GNU Compiler Collection.
! END-INFO-DIR-ENTRY
  
  
  File: gccinstall.info,  Node: Top,  Up: (dir)
--- 40,47 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  
  
  File: gccinstall.info,  Node: Top,  Up: (dir)
*************** File: gccinstall.info,  Node: Installing
*** 67,79 ****
  1 Installing GCC
  ****************
  
!    The latest version of this document is always available at
  http://gcc.gnu.org/install/.  It refers to the current development
  sources, instructions for specific released versions are included with
  the sources.
  
!    This document describes the generic installation procedure for GCC
! as well as detailing some target specific installation instructions.
  
     GCC includes several components that previously were separate
  distributions with their own installation instructions.  This document
--- 66,78 ----
  1 Installing GCC
  ****************
  
! The latest version of this document is always available at
  http://gcc.gnu.org/install/.  It refers to the current development
  sources, instructions for specific released versions are included with
  the sources.
  
!    This document describes the generic installation procedure for GCC as
! well as detailing some target specific installation instructions.
  
     GCC includes several components that previously were separate
  distributions with their own installation instructions.  This document
*************** supersedes all package-specific installa
*** 83,91 ****
  host/target specific installation notes: Specific.  We recommend you
  browse the entire generic installation instructions before you proceed.
  
!    Lists of successful builds for released versions of GCC are
! available at `http://gcc.gnu.org/buildstat.html'.  These lists are
! updated as new information becomes available.
  
     The installation procedure itself is broken into five steps.
  
--- 82,90 ----
  host/target specific installation notes: Specific.  We recommend you
  browse the entire generic installation instructions before you proceed.
  
!    Lists of successful builds for released versions of GCC are available
! at <http://gcc.gnu.org/buildstat.html>.  These lists are updated as new
! information becomes available.
  
     The installation procedure itself is broken into five steps.
  
*************** updated as new information becomes avail
*** 98,109 ****
  * Testing:: (optional)
  * Final install::
  
!    Please note that GCC does not support `make uninstall' and probably
  won't do so in the near future as this would open a can of worms.
! Instead, we suggest that you install GCC into a directory of its own
! and simply remove that directory when you do not need that specific
! version of GCC any longer, and, if shared libraries are installed there
! as well, no more binaries exist that use them.
  
  
  File: gccinstall.info,  Node: Prerequisites,  Next: Downloading the source,  Up: Installing GCC
--- 97,108 ----
  * Testing:: (optional)
  * Final install::
  
!    Please note that GCC does not support 'make uninstall' and probably
  won't do so in the near future as this would open a can of worms.
! Instead, we suggest that you install GCC into a directory of its own and
! simply remove that directory when you do not need that specific version
! of GCC any longer, and, if shared libraries are installed there as well,
! no more binaries exist that use them.
  
  
  File: gccinstall.info,  Node: Prerequisites,  Next: Downloading the source,  Up: Installing GCC
*************** File: gccinstall.info,  Node: Prerequisi
*** 111,118 ****
  2 Prerequisites
  ***************
  
!    GCC requires that various tools and packages be available for use in
! the build procedure.  Modifying GCC sources requires additional tools
  described below.
  
  Tools/packages necessary for building GCC
--- 110,117 ----
  2 Prerequisites
  ***************
  
! GCC requires that various tools and packages be available for use in the
! build procedure.  Modifying GCC sources requires additional tools
  described below.
  
  Tools/packages necessary for building GCC
*************** ISO C++98 compiler
*** 125,368 ****
       C compiler.
  
       To build all languages in a cross-compiler or other configuration
!      where 3-stage bootstrap is not performed, you need to start with
!      an existing GCC binary (version 3.4 or later) because source code
!      for language frontends other than C might use GCC extensions.
  
       Note that to bootstrap GCC with versions of GCC earlier than 3.4,
!      you may need to use `--disable-stage1-checking', though
       bootstrapping the compiler with such earlier compilers is strongly
       discouraged.
  
  C standard library and headers
       In order to build GCC, the C standard library and headers must be
       present for all target variants for which target libraries will be
       built (and not only the variant of the host C++ compiler).
  
!      This affects the popular `x86_64-unknown-linux-gnu' platform (among
!      other multilib targets), for which 64-bit (`x86_64') and 32-bit
!      (`i386') libc headers are usually packaged separately. If you do a
!      build of a native compiler on `x86_64-unknown-linux-gnu', make
!      sure you either have the 32-bit libc developer package properly
!      installed (the exact name of the package depends on your distro)
!      or you must build GCC as a 64-bit only compiler by configuring
!      with the option `--disable-multilib'.  Otherwise, you may
!      encounter an error such as `fatal error: gnu/stubs-32.h: No such
!      file'
  
  GNAT
       In order to build the Ada compiler (GNAT) you must already have
       GNAT installed because portions of the Ada frontend are written in
       Ada (with GNAT extensions.)  Refer to the Ada installation
       instructions for more specific information.
  
  A "working" POSIX compatible shell, or GNU bash
!      Necessary when running `configure' because some `/bin/sh' shells
       have bugs and may crash when configuring the target libraries.  In
!      other cases, `/bin/sh' or `ksh' have disastrous corner-case
!      performance problems.  This can cause target `configure' runs to
       literally take days to complete in some cases.
  
!      So on some platforms `/bin/ksh' is sufficient, on others it isn't.
!      See the host/target specific instructions for your platform, or
!      use `bash' to be sure.  Then set `CONFIG_SHELL' in your
!      environment to your "good" shell prior to running
!      `configure'/`make'.
  
!      `zsh' is not a fully compliant POSIX shell and will not work when
       configuring GCC.
  
  A POSIX or SVR4 awk
       Necessary for creating some of the generated source files for GCC.
       If in doubt, use a recent GNU awk version, as some of the older
       ones are broken.  GNU awk version 3.1.5 is known to work.
  
  GNU binutils
       Necessary in some circumstances, optional in others.  See the
       host/target specific instructions for your platform for the exact
       requirements.
  
  gzip version 1.2.4 (or later) or
  bzip2 version 1.0.2 (or later)
!      Necessary to uncompress GCC `tar' files when source code is
       obtained via FTP mirror sites.
  
  GNU make version 3.80 (or later)
       You must have GNU make installed to build GCC.
  
  GNU tar version 1.14 (or later)
       Necessary (only on some platforms) to untar the source code.  Many
!      systems' `tar' programs will also work, only try GNU `tar' if you
       have problems.
  
  Perl version 5.6.1 (or later)
-      Necessary when targeting Darwin, building `libstdc++', and not
-      using `--disable-symvers'.  Necessary when targeting Solaris 2
-      with Sun `ld' and not using `--disable-symvers'.  The bundled
-      `perl' in Solaris 8 and up works.
  
!      Necessary when regenerating `Makefile' dependencies in libiberty.
!      Necessary when regenerating `libiberty/functions.texi'.  Necessary
       when generating manpages from Texinfo manuals.  Used by various
       scripts to generate some files included in SVN (mainly
       Unicode-related and rarely changing) from source tables.
  
! `jar', or InfoZIP (`zip' and `unzip')
!      Necessary to build libgcj, the GCJ runtime.
  
  
     Several support libraries are necessary to build GCC, some are
  required, others optional.  While any sufficiently new version of
  required tools usually work, library requirements are generally
  stricter.  Newer versions may work in some cases, but it's safer to use
! the exact versions documented.  We appreciate bug reports about
! problems with newer versions, though.  If your OS vendor provides
! packages for the support libraries then using those packages may be the
! simplest way to install the libraries.
  
  GNU Multiple Precision Library (GMP) version 4.3.2 (or later)
       Necessary to build GCC.  If a GMP source distribution is found in a
!      subdirectory of your GCC sources named `gmp', it will be built
!      together with GCC.  Alternatively, if GMP is already installed but
       it is not in your library search path, you will have to configure
!      with the `--with-gmp' configure option.  See also `--with-gmp-lib'
!      and `--with-gmp-include'.
  
  MPFR Library version 2.4.2 (or later)
       Necessary to build GCC.  It can be downloaded from
!      `http://www.mpfr.org/'.  If an MPFR source distribution is found
!      in a subdirectory of your GCC sources named `mpfr', it will be
!      built together with GCC.  Alternatively, if MPFR is already
!      installed but it is not in your default library search path, the
!      `--with-mpfr' configure option should be used.  See also
!      `--with-mpfr-lib' and `--with-mpfr-include'.
  
  MPC Library version 0.8.1 (or later)
       Necessary to build GCC.  It can be downloaded from
!      `http://www.multiprecision.org/'.  If an MPC source distribution
!      is found in a subdirectory of your GCC sources named `mpc', it
!      will be built together with GCC.  Alternatively, if MPC is already
!      installed but it is not in your default library search path, the
!      `--with-mpc' configure option should be used.  See also
!      `--with-mpc-lib' and `--with-mpc-include'.
  
  isl Library version 0.16, 0.15, or 0.14.
       Necessary to build GCC with the Graphite loop optimizations.  It
!      can be downloaded from `ftp://gcc.gnu.org/pub/gcc/infrastructure/'.
       If an isl source distribution is found in a subdirectory of your
!      GCC sources named `isl', it will be built together with GCC.
!      Alternatively, the `--with-isl' configure option should be used if
       isl is not installed in your default library search path.
  
- 
  Tools/packages necessary for modifying GCC
  ==========================================
  
  autoconf version 2.64
  GNU m4 version 1.4.6 (or later)
!      Necessary when modifying `configure.ac', `aclocal.m4', etc.  to
!      regenerate `configure' and `config.in' files.
  
  automake version 1.11.6
!      Necessary when modifying a `Makefile.am' file to regenerate its
!      associated `Makefile.in'.
  
       Much of GCC does not use automake, so directly edit the
!      `Makefile.in' file.  Specifically this applies to the `gcc',
!      `intl', `libcpp', `libiberty', `libobjc' directories as well as
!      any of their subdirectories.
  
       For directories that use automake, GCC requires the latest release
!      in the 1.11 series, which is currently 1.11.6.  When regenerating
!      a directory to a newer version, please update all the directories
       using an older 1.11 to the latest released version.
  
  gettext version 0.14.5 (or later)
!      Needed to regenerate `gcc.pot'.
  
  gperf version 2.7.2 (or later)
!      Necessary when modifying `gperf' input files, e.g.
!      `gcc/cp/cfns.gperf' to regenerate its associated header file, e.g.
!      `gcc/cp/cfns.h'.
  
  DejaGnu 1.4.4
  Expect
  Tcl
       Necessary to run the GCC testsuite; see the section on testing for
       details.  Tcl 8.6 has a known regression in RE pattern handling
       that make parts of the testsuite fail.  See
!      `http://core.tcl.tk/tcl/tktview/267b7e2334ee2e9de34c4b00d6e72e2f1997085f'
       for more information.  This bug has been fixed in 8.6.1.
  
  autogen version 5.5.4 (or later) and
  guile version 1.4.1 (or later)
-      Necessary to regenerate `fixinc/fixincl.x' from
-      `fixinc/inclhack.def' and `fixinc/*.tpl'.
  
!      Necessary to run `make check' for `fixinc'.
  
!      Necessary to regenerate the top level `Makefile.in' file from
!      `Makefile.tpl' and `Makefile.def'.
  
  Flex version 2.5.4 (or later)
!      Necessary when modifying `*.l' files.
  
       Necessary to build GCC during development because the generated
       output files are not included in the SVN repository.  They are
       included in releases.
  
  Texinfo version 4.7 (or later)
!      Necessary for running `makeinfo' when modifying `*.texi' files to
       test your changes.
  
!      Necessary for running `make dvi' or `make pdf' to create printable
       documentation in DVI or PDF format.  Texinfo version 4.8 or later
!      is required for `make pdf'.
  
       Necessary to build GCC documentation during development because the
       generated output files are not included in the SVN repository.
       They are included in releases.
  
  TeX (any working version)
!      Necessary for running `texi2dvi' and `texi2pdf', which are used
!      when running `make dvi' or `make pdf' to create DVI or PDF files,
       respectively.
  
  Sphinx version 1.0 (or later)
!      Necessary to regenerate `jit/docs/_build/texinfo' from the `.rst'
!      files in the directories below `jit/docs'.
  
  SVN (any version)
  SSH (any version)
       Necessary to access the SVN repository.  Public releases and weekly
       snapshots of the development sources are also available via FTP.
  
  GNU diffutils version 2.7 (or later)
       Useful when submitting patches for the GCC source code.
  
  patch version 2.5.4 (or later)
!      Necessary when applying patches, created with `diff', to one's own
       sources.
  
  ecj1
  gjavah
!      If you wish to modify `.java' files in libjava, you will need to
!      configure with `--enable-java-maintainer-mode', and you will need
!      to have executables named `ecj1' and `gjavah' in your path.  The
!      `ecj1' executable should run the Eclipse Java compiler via the
       GCC-specific entry point.  You can download a suitable jar from
!      `ftp://sourceware.org/pub/java/', or by running the script
!      `contrib/download_ecj'.
  
  antlr.jar version 2.7.1 (or later)
  antlr binary
-      If you wish to build the `gjdoc' binary in libjava, you will need
-      to have an `antlr.jar' library available. The library is searched
-      for in system locations but can be specified with
-      `--with-antlr-jar=' instead.  When configuring with
-      `--enable-java-maintainer-mode', you will need to have one of the
-      executables named `cantlr', `runantlr' or `antlr' in your path.
  
  
  
  File: gccinstall.info,  Node: Downloading the source,  Next: Configuration,  Prev: Prerequisites,  Up: Installing GCC
--- 124,391 ----
       C compiler.
  
       To build all languages in a cross-compiler or other configuration
!      where 3-stage bootstrap is not performed, you need to start with an
!      existing GCC binary (version 3.4 or later) because source code for
!      language frontends other than C might use GCC extensions.
  
       Note that to bootstrap GCC with versions of GCC earlier than 3.4,
!      you may need to use '--disable-stage1-checking', though
       bootstrapping the compiler with such earlier compilers is strongly
       discouraged.
  
  C standard library and headers
+ 
       In order to build GCC, the C standard library and headers must be
       present for all target variants for which target libraries will be
       built (and not only the variant of the host C++ compiler).
  
!      This affects the popular 'x86_64-unknown-linux-gnu' platform (among
!      other multilib targets), for which 64-bit ('x86_64') and 32-bit
!      ('i386') libc headers are usually packaged separately.  If you do a
!      build of a native compiler on 'x86_64-unknown-linux-gnu', make sure
!      you either have the 32-bit libc developer package properly
!      installed (the exact name of the package depends on your distro) or
!      you must build GCC as a 64-bit only compiler by configuring with
!      the option '--disable-multilib'.  Otherwise, you may encounter an
!      error such as 'fatal error: gnu/stubs-32.h: No such file'
  
  GNAT
+ 
       In order to build the Ada compiler (GNAT) you must already have
       GNAT installed because portions of the Ada frontend are written in
       Ada (with GNAT extensions.)  Refer to the Ada installation
       instructions for more specific information.
  
  A "working" POSIX compatible shell, or GNU bash
! 
!      Necessary when running 'configure' because some '/bin/sh' shells
       have bugs and may crash when configuring the target libraries.  In
!      other cases, '/bin/sh' or 'ksh' have disastrous corner-case
!      performance problems.  This can cause target 'configure' runs to
       literally take days to complete in some cases.
  
!      So on some platforms '/bin/ksh' is sufficient, on others it isn't.
!      See the host/target specific instructions for your platform, or use
!      'bash' to be sure.  Then set 'CONFIG_SHELL' in your environment to
!      your "good" shell prior to running 'configure'/'make'.
  
!      'zsh' is not a fully compliant POSIX shell and will not work when
       configuring GCC.
  
  A POSIX or SVR4 awk
+ 
       Necessary for creating some of the generated source files for GCC.
       If in doubt, use a recent GNU awk version, as some of the older
       ones are broken.  GNU awk version 3.1.5 is known to work.
  
  GNU binutils
+ 
       Necessary in some circumstances, optional in others.  See the
       host/target specific instructions for your platform for the exact
       requirements.
  
  gzip version 1.2.4 (or later) or
  bzip2 version 1.0.2 (or later)
! 
!      Necessary to uncompress GCC 'tar' files when source code is
       obtained via FTP mirror sites.
  
  GNU make version 3.80 (or later)
+ 
       You must have GNU make installed to build GCC.
  
  GNU tar version 1.14 (or later)
+ 
       Necessary (only on some platforms) to untar the source code.  Many
!      systems' 'tar' programs will also work, only try GNU 'tar' if you
       have problems.
  
  Perl version 5.6.1 (or later)
  
!      Necessary when targeting Darwin, building 'libstdc++', and not
!      using '--disable-symvers'.  Necessary when targeting Solaris 2 with
!      Sun 'ld' and not using '--disable-symvers'.  The bundled 'perl' in
!      Solaris 8 and up works.
! 
!      Necessary when regenerating 'Makefile' dependencies in libiberty.
!      Necessary when regenerating 'libiberty/functions.texi'.  Necessary
       when generating manpages from Texinfo manuals.  Used by various
       scripts to generate some files included in SVN (mainly
       Unicode-related and rarely changing) from source tables.
  
! 'jar', or InfoZIP ('zip' and 'unzip')
  
+      Necessary to build libgcj, the GCJ runtime.
  
     Several support libraries are necessary to build GCC, some are
  required, others optional.  While any sufficiently new version of
  required tools usually work, library requirements are generally
  stricter.  Newer versions may work in some cases, but it's safer to use
! the exact versions documented.  We appreciate bug reports about problems
! with newer versions, though.  If your OS vendor provides packages for
! the support libraries then using those packages may be the simplest way
! to install the libraries.
  
  GNU Multiple Precision Library (GMP) version 4.3.2 (or later)
+ 
       Necessary to build GCC.  If a GMP source distribution is found in a
!      subdirectory of your GCC sources named 'gmp', it will be built
!      together with GCC. Alternatively, if GMP is already installed but
       it is not in your library search path, you will have to configure
!      with the '--with-gmp' configure option.  See also '--with-gmp-lib'
!      and '--with-gmp-include'.
  
  MPFR Library version 2.4.2 (or later)
+ 
       Necessary to build GCC.  It can be downloaded from
!      <http://www.mpfr.org/>.  If an MPFR source distribution is found in
!      a subdirectory of your GCC sources named 'mpfr', it will be built
!      together with GCC. Alternatively, if MPFR is already installed but
!      it is not in your default library search path, the '--with-mpfr'
!      configure option should be used.  See also '--with-mpfr-lib' and
!      '--with-mpfr-include'.
  
  MPC Library version 0.8.1 (or later)
+ 
       Necessary to build GCC.  It can be downloaded from
!      <http://www.multiprecision.org/>.  If an MPC source distribution is
!      found in a subdirectory of your GCC sources named 'mpc', it will be
!      built together with GCC. Alternatively, if MPC is already installed
!      but it is not in your default library search path, the '--with-mpc'
!      configure option should be used.  See also '--with-mpc-lib' and
!      '--with-mpc-include'.
  
  isl Library version 0.16, 0.15, or 0.14.
+ 
       Necessary to build GCC with the Graphite loop optimizations.  It
!      can be downloaded from <ftp://gcc.gnu.org/pub/gcc/infrastructure/>.
       If an isl source distribution is found in a subdirectory of your
!      GCC sources named 'isl', it will be built together with GCC.
!      Alternatively, the '--with-isl' configure option should be used if
       isl is not installed in your default library search path.
  
  Tools/packages necessary for modifying GCC
  ==========================================
  
  autoconf version 2.64
  GNU m4 version 1.4.6 (or later)
! 
!      Necessary when modifying 'configure.ac', 'aclocal.m4', etc. to
!      regenerate 'configure' and 'config.in' files.
  
  automake version 1.11.6
! 
!      Necessary when modifying a 'Makefile.am' file to regenerate its
!      associated 'Makefile.in'.
  
       Much of GCC does not use automake, so directly edit the
!      'Makefile.in' file.  Specifically this applies to the 'gcc',
!      'intl', 'libcpp', 'libiberty', 'libobjc' directories as well as any
!      of their subdirectories.
  
       For directories that use automake, GCC requires the latest release
!      in the 1.11 series, which is currently 1.11.6.  When regenerating a
!      directory to a newer version, please update all the directories
       using an older 1.11 to the latest released version.
  
  gettext version 0.14.5 (or later)
! 
!      Needed to regenerate 'gcc.pot'.
  
  gperf version 2.7.2 (or later)
! 
!      Necessary when modifying 'gperf' input files, e.g.
!      'gcc/cp/cfns.gperf' to regenerate its associated header file, e.g.
!      'gcc/cp/cfns.h'.
  
  DejaGnu 1.4.4
  Expect
  Tcl
+ 
       Necessary to run the GCC testsuite; see the section on testing for
       details.  Tcl 8.6 has a known regression in RE pattern handling
       that make parts of the testsuite fail.  See
!      <http://core.tcl.tk/tcl/tktview/267b7e2334ee2e9de34c4b00d6e72e2f1997085f>
       for more information.  This bug has been fixed in 8.6.1.
  
  autogen version 5.5.4 (or later) and
  guile version 1.4.1 (or later)
  
!      Necessary to regenerate 'fixinc/fixincl.x' from
!      'fixinc/inclhack.def' and 'fixinc/*.tpl'.
  
!      Necessary to run 'make check' for 'fixinc'.
! 
!      Necessary to regenerate the top level 'Makefile.in' file from
!      'Makefile.tpl' and 'Makefile.def'.
  
  Flex version 2.5.4 (or later)
! 
!      Necessary when modifying '*.l' files.
  
       Necessary to build GCC during development because the generated
       output files are not included in the SVN repository.  They are
       included in releases.
  
  Texinfo version 4.7 (or later)
! 
!      Necessary for running 'makeinfo' when modifying '*.texi' files to
       test your changes.
  
!      Necessary for running 'make dvi' or 'make pdf' to create printable
       documentation in DVI or PDF format.  Texinfo version 4.8 or later
!      is required for 'make pdf'.
  
       Necessary to build GCC documentation during development because the
       generated output files are not included in the SVN repository.
       They are included in releases.
  
  TeX (any working version)
! 
!      Necessary for running 'texi2dvi' and 'texi2pdf', which are used
!      when running 'make dvi' or 'make pdf' to create DVI or PDF files,
       respectively.
  
  Sphinx version 1.0 (or later)
! 
!      Necessary to regenerate 'jit/docs/_build/texinfo' from the '.rst'
!      files in the directories below 'jit/docs'.
  
  SVN (any version)
  SSH (any version)
+ 
       Necessary to access the SVN repository.  Public releases and weekly
       snapshots of the development sources are also available via FTP.
  
  GNU diffutils version 2.7 (or later)
+ 
       Useful when submitting patches for the GCC source code.
  
  patch version 2.5.4 (or later)
! 
!      Necessary when applying patches, created with 'diff', to one's own
       sources.
  
  ecj1
  gjavah
! 
!      If you wish to modify '.java' files in libjava, you will need to
!      configure with '--enable-java-maintainer-mode', and you will need
!      to have executables named 'ecj1' and 'gjavah' in your path.  The
!      'ecj1' executable should run the Eclipse Java compiler via the
       GCC-specific entry point.  You can download a suitable jar from
!      <ftp://sourceware.org/pub/java/>, or by running the script
!      'contrib/download_ecj'.
  
  antlr.jar version 2.7.1 (or later)
  antlr binary
  
+      If you wish to build the 'gjdoc' binary in libjava, you will need
+      to have an 'antlr.jar' library available.  The library is searched
+      for in system locations but can be specified with
+      '--with-antlr-jar=' instead.  When configuring with
+      '--enable-java-maintainer-mode', you will need to have one of the
+      executables named 'cantlr', 'runantlr' or 'antlr' in your path.
  
  
  File: gccinstall.info,  Node: Downloading the source,  Next: Configuration,  Prev: Prerequisites,  Up: Installing GCC
*************** File: gccinstall.info,  Node: Downloadin
*** 370,403 ****
  3 Downloading GCC
  *****************
  
!    GCC is distributed via SVN and FTP tarballs compressed with `gzip' or
! `bzip2'.
  
     Please refer to the releases web page for information on how to
  obtain GCC.
  
     The source distribution includes the C, C++, Objective-C, Fortran,
  Java, and Ada (in the case of GCC 3.1 and later) compilers, as well as
! runtime libraries for C++, Objective-C, Fortran, and Java.  For
! previous versions these were downloadable as separate components such
! as the core GCC distribution, which included the C language front end
! and shared components, and language-specific distributions including the
! language front end and the language runtime (where appropriate).
  
     If you also intend to build binutils (either to upgrade an existing
! installation or for use in place of the corresponding tools of your
! OS), unpack the binutils distribution either in the same directory or a
  separate one.  In the latter case, add symbolic links to any components
! of the binutils you intend to build alongside the compiler (`bfd',
! `binutils', `gas', `gprof', `ld', `opcodes', ...) to the directory
  containing the GCC sources.
  
     Likewise the GMP, MPFR and MPC libraries can be automatically built
! together with GCC.  You may simply run the
! `contrib/download_prerequisites' script in the GCC source directory to
  set up everything.  Otherwise unpack the GMP, MPFR and/or MPC source
  distributions in the directory containing the GCC sources and rename
! their directories to `gmp', `mpfr' and `mpc', respectively (or use
  symbolic links with the same name).
  
  
--- 393,426 ----
  3 Downloading GCC
  *****************
  
! GCC is distributed via SVN and FTP tarballs compressed with 'gzip' or
! 'bzip2'.
  
     Please refer to the releases web page for information on how to
  obtain GCC.
  
     The source distribution includes the C, C++, Objective-C, Fortran,
  Java, and Ada (in the case of GCC 3.1 and later) compilers, as well as
! runtime libraries for C++, Objective-C, Fortran, and Java.  For previous
! versions these were downloadable as separate components such as the core
! GCC distribution, which included the C language front end and shared
! components, and language-specific distributions including the language
! front end and the language runtime (where appropriate).
  
     If you also intend to build binutils (either to upgrade an existing
! installation or for use in place of the corresponding tools of your OS),
! unpack the binutils distribution either in the same directory or a
  separate one.  In the latter case, add symbolic links to any components
! of the binutils you intend to build alongside the compiler ('bfd',
! 'binutils', 'gas', 'gprof', 'ld', 'opcodes', ...) to the directory
  containing the GCC sources.
  
     Likewise the GMP, MPFR and MPC libraries can be automatically built
! together with GCC. You may simply run the
! 'contrib/download_prerequisites' script in the GCC source directory to
  set up everything.  Otherwise unpack the GMP, MPFR and/or MPC source
  distributions in the directory containing the GCC sources and rename
! their directories to 'gmp', 'mpfr' and 'mpc', respectively (or use
  symbolic links with the same name).
  
  
*************** File: gccinstall.info,  Node: Configurat
*** 406,427 ****
  4 Installing GCC: Configuration
  *******************************
  
!    Like most GNU software, GCC must be configured before it can be
! built.  This document describes the recommended configuration procedure
! for both native and cross targets.
  
     We use SRCDIR to refer to the toplevel source directory for GCC; we
  use OBJDIR to refer to the toplevel build/object directory.
  
     If you obtained the sources via SVN, SRCDIR must refer to the top
! `gcc' directory, the one where the `MAINTAINERS' file can be found, and
! not its `gcc' subdirectory, otherwise the build will fail.
  
     If either SRCDIR or OBJDIR is located on an automounted NFS file
! system, the shell's built-in `pwd' command will return temporary
! pathnames.  Using these can lead to various sorts of build problems.
! To avoid this issue, set the `PWDCMD' environment variable to an
! automounter-aware `pwd' command, e.g., `pawd' or `amq -w', during the
  configuration and build phases.
  
     First, we *highly* recommend that GCC be built into a separate
--- 429,450 ----
  4 Installing GCC: Configuration
  *******************************
  
! Like most GNU software, GCC must be configured before it can be built.
! This document describes the recommended configuration procedure for both
! native and cross targets.
  
     We use SRCDIR to refer to the toplevel source directory for GCC; we
  use OBJDIR to refer to the toplevel build/object directory.
  
     If you obtained the sources via SVN, SRCDIR must refer to the top
! 'gcc' directory, the one where the 'MAINTAINERS' file can be found, and
! not its 'gcc' subdirectory, otherwise the build will fail.
  
     If either SRCDIR or OBJDIR is located on an automounted NFS file
! system, the shell's built-in 'pwd' command will return temporary
! pathnames.  Using these can lead to various sorts of build problems.  To
! avoid this issue, set the 'PWDCMD' environment variable to an
! automounter-aware 'pwd' command, e.g., 'pawd' or 'amq -w', during the
  configuration and build phases.
  
     First, we *highly* recommend that GCC be built into a separate
*************** OBJDIR should still work, but doesn't ge
*** 431,446 ****
  where OBJDIR is a subdirectory of SRCDIR is unsupported.
  
     If you have previously built GCC in the same directory for a
! different target machine, do `make distclean' to delete all files that
! might be invalid.  One of the files this deletes is `Makefile'; if
! `make distclean' complains that `Makefile' does not exist or issues a
! message like "don't know how to make distclean" it probably means that
! the directory is already suitably clean.  However, with the recommended
  method of building in a separate OBJDIR, you should simply use a
  different OBJDIR for each target.
  
!    Second, when configuring a native system, either `cc' or `gcc' must
! be in your path or you must set `CC' in your environment before running
  configure.  Otherwise the configuration scripts may fail.
  
     To configure GCC:
--- 454,469 ----
  where OBJDIR is a subdirectory of SRCDIR is unsupported.
  
     If you have previously built GCC in the same directory for a
! different target machine, do 'make distclean' to delete all files that
! might be invalid.  One of the files this deletes is 'Makefile'; if 'make
! distclean' complains that 'Makefile' does not exist or issues a message
! like "don't know how to make distclean" it probably means that the
! directory is already suitably clean.  However, with the recommended
  method of building in a separate OBJDIR, you should simply use a
  different OBJDIR for each target.
  
!    Second, when configuring a native system, either 'cc' or 'gcc' must
! be in your path or you must set 'CC' in your environment before running
  configure.  Otherwise the configuration scripts may fail.
  
     To configure GCC:
*************** Distributor options
*** 453,470 ****
  ===================
  
  If you will be distributing binary versions of GCC, with modifications
! to the source code, you should use the options described in this
! section to make clear that your version contains modifications.
  
! `--with-pkgversion=VERSION'
       Specify a string that identifies your package.  You may wish to
       include a build number or build date.  This version string will be
!      included in the output of `gcc --version'.  This suffix does not
!      replace the default version string, only the `GCC' part.
  
!      The default value is `GCC'.
  
! `--with-bugurl=URL'
       Specify the URL that users should visit if they wish to report a
       bug.  You are of course welcome to forward bugs reported to you to
       the FSF, if you determine that they are not bugs in your
--- 476,493 ----
  ===================
  
  If you will be distributing binary versions of GCC, with modifications
! to the source code, you should use the options described in this section
! to make clear that your version contains modifications.
  
! '--with-pkgversion=VERSION'
       Specify a string that identifies your package.  You may wish to
       include a build number or build date.  This version string will be
!      included in the output of 'gcc --version'.  This suffix does not
!      replace the default version string, only the 'GCC' part.
  
!      The default value is 'GCC'.
  
! '--with-bugurl=URL'
       Specify the URL that users should visit if they wish to report a
       bug.  You are of course welcome to forward bugs reported to you to
       the FSF, if you determine that they are not bugs in your
*************** section to make clear that your version
*** 472,478 ****
  
       The default value refers to the FSF's GCC bug tracker.
  
- 
  Target specification
  ====================
  
--- 495,500 ----
*************** Target specification
*** 481,617 ****
       do not provide a configure target when configuring a native
       compiler.
  
!    * TARGET must be specified as `--target=TARGET' when configuring a
       cross compiler; examples of valid targets would be m68k-elf,
       sh-elf, etc.
  
!    * Specifying just TARGET instead of `--target=TARGET' implies that
       the host defaults to TARGET.
  
  Options specification
  =====================
  
  Use OPTIONS to override several configure time options for GCC.  A list
! of supported OPTIONS follows; `configure --help' may list other
! options, but those not listed below may not work and should not
! normally be used.
  
!    Note that each `--enable' option has a corresponding `--disable'
! option and that each `--with' option has a corresponding `--without'
  option.
  
! `--prefix=DIRNAME'
       Specify the toplevel installation directory.  This is the
       recommended way to install the tools into a directory other than
       the default.  The toplevel installation directory defaults to
!      `/usr/local'.
  
       We *highly* recommend against DIRNAME being the same or a
       subdirectory of OBJDIR or vice versa.  If specifying a directory
       beneath a user's home directory tree, some shells will not expand
!      DIRNAME correctly if it contains the `~' metacharacter; use
!      `$HOME' instead.
  
!      The following standard `autoconf' options are supported.  Normally
       you should not need to use these options.
!     `--exec-prefix=DIRNAME'
            Specify the toplevel installation directory for
!           architecture-dependent files.  The default is `PREFIX'.
  
!     `--bindir=DIRNAME'
            Specify the installation directory for the executables called
!           by users (such as `gcc' and `g++').  The default is
!           `EXEC-PREFIX/bin'.
  
!     `--libdir=DIRNAME'
            Specify the installation directory for object code libraries
            and internal data files of GCC.  The default is
!           `EXEC-PREFIX/lib'.
  
!     `--libexecdir=DIRNAME'
!           Specify the installation directory for internal executables
!           of GCC.  The default is `EXEC-PREFIX/libexec'.
  
!     `--with-slibdir=DIRNAME'
            Specify the installation directory for the shared libgcc
!           library.  The default is `LIBDIR'.
  
!     `--datarootdir=DIRNAME'
            Specify the root of the directory tree for read-only
            architecture-independent data files referenced by GCC.  The
!           default is `PREFIX/share'.
  
!     `--infodir=DIRNAME'
            Specify the installation directory for documentation in info
!           format.  The default is `DATAROOTDIR/info'.
  
!     `--datadir=DIRNAME'
            Specify the installation directory for some
            architecture-independent data files referenced by GCC.  The
!           default is `DATAROOTDIR'.
  
!     `--docdir=DIRNAME'
            Specify the installation directory for documentation files
!           (other than Info) for GCC.  The default is `DATAROOTDIR/doc'.
  
!     `--htmldir=DIRNAME'
            Specify the installation directory for HTML documentation
!           files.  The default is `DOCDIR'.
  
!     `--pdfdir=DIRNAME'
            Specify the installation directory for PDF documentation
!           files.  The default is `DOCDIR'.
  
!     `--mandir=DIRNAME'
            Specify the installation directory for manual pages.  The
!           default is `DATAROOTDIR/man'.  (Note that the manual pages
!           are only extracts from the full GCC manuals, which are
!           provided in Texinfo format.  The manpages are derived by an
!           automatic conversion process from parts of the full manual.)
  
!     `--with-gxx-include-dir=DIRNAME'
            Specify the installation directory for G++ header files.  The
            default depends on other configuration options, and differs
            between cross and native configurations.
  
!     `--with-specs=SPECS'
!           Specify additional command line driver SPECS.  This can be
            useful if you need to turn on a non-standard feature by
            default without modifying the compiler's source code, for
            instance
!           `--with-specs=%{!fcommon:%{!fno-common:-fno-common}}'.  *Note
            Specifying subprocesses and the switches to pass to them:
            (gcc)Spec Files,
  
! 
! `--program-prefix=PREFIX'
       GCC supports some transformations of the names of its programs when
       installing them.  This option prepends PREFIX to the names of
       programs to install in BINDIR (see above).  For example, specifying
!      `--program-prefix=foo-' would result in `gcc' being installed as
!      `/usr/local/bin/foo-gcc'.
  
! `--program-suffix=SUFFIX'
       Appends SUFFIX to the names of programs to install in BINDIR (see
!      above).  For example, specifying `--program-suffix=-3.1' would
!      result in `gcc' being installed as `/usr/local/bin/gcc-3.1'.
  
! `--program-transform-name=PATTERN'
!      Applies the `sed' script PATTERN to be applied to the names of
       programs to install in BINDIR (see above).  PATTERN has to consist
!      of one or more basic `sed' editing commands, separated by
!      semicolons.  For example, if you want the `gcc' program name to be
!      transformed to the installed program `/usr/local/bin/myowngcc' and
!      the `g++' program name to be transformed to
!      `/usr/local/bin/gspecial++' without changing other program names,
       you could use the pattern
!      `--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/''
       to achieve this effect.
  
       All three options can be combined and used together, resulting in
       more complex conversion patterns.  As a basic rule, PREFIX (and
!      SUFFIX) are prepended (appended) before further transformations
!      can happen with a special transformation script PATTERN.
  
       As currently implemented, this option only takes effect for native
       builds; cross compiler binaries' names are not transformed even
--- 503,637 ----
       do not provide a configure target when configuring a native
       compiler.
  
!    * TARGET must be specified as '--target=TARGET' when configuring a
       cross compiler; examples of valid targets would be m68k-elf,
       sh-elf, etc.
  
!    * Specifying just TARGET instead of '--target=TARGET' implies that
       the host defaults to TARGET.
  
  Options specification
  =====================
  
  Use OPTIONS to override several configure time options for GCC.  A list
! of supported OPTIONS follows; 'configure --help' may list other options,
! but those not listed below may not work and should not normally be used.
  
!    Note that each '--enable' option has a corresponding '--disable'
! option and that each '--with' option has a corresponding '--without'
  option.
  
! '--prefix=DIRNAME'
       Specify the toplevel installation directory.  This is the
       recommended way to install the tools into a directory other than
       the default.  The toplevel installation directory defaults to
!      '/usr/local'.
  
       We *highly* recommend against DIRNAME being the same or a
       subdirectory of OBJDIR or vice versa.  If specifying a directory
       beneath a user's home directory tree, some shells will not expand
!      DIRNAME correctly if it contains the '~' metacharacter; use '$HOME'
!      instead.
  
!      The following standard 'autoconf' options are supported.  Normally
       you should not need to use these options.
!      '--exec-prefix=DIRNAME'
            Specify the toplevel installation directory for
!           architecture-dependent files.  The default is 'PREFIX'.
  
!      '--bindir=DIRNAME'
            Specify the installation directory for the executables called
!           by users (such as 'gcc' and 'g++').  The default is
!           'EXEC-PREFIX/bin'.
  
!      '--libdir=DIRNAME'
            Specify the installation directory for object code libraries
            and internal data files of GCC.  The default is
!           'EXEC-PREFIX/lib'.
  
!      '--libexecdir=DIRNAME'
!           Specify the installation directory for internal executables of
!           GCC.  The default is 'EXEC-PREFIX/libexec'.
  
!      '--with-slibdir=DIRNAME'
            Specify the installation directory for the shared libgcc
!           library.  The default is 'LIBDIR'.
  
!      '--datarootdir=DIRNAME'
            Specify the root of the directory tree for read-only
            architecture-independent data files referenced by GCC.  The
!           default is 'PREFIX/share'.
  
!      '--infodir=DIRNAME'
            Specify the installation directory for documentation in info
!           format.  The default is 'DATAROOTDIR/info'.
  
!      '--datadir=DIRNAME'
            Specify the installation directory for some
            architecture-independent data files referenced by GCC.  The
!           default is 'DATAROOTDIR'.
  
!      '--docdir=DIRNAME'
            Specify the installation directory for documentation files
!           (other than Info) for GCC.  The default is 'DATAROOTDIR/doc'.
  
!      '--htmldir=DIRNAME'
            Specify the installation directory for HTML documentation
!           files.  The default is 'DOCDIR'.
  
!      '--pdfdir=DIRNAME'
            Specify the installation directory for PDF documentation
!           files.  The default is 'DOCDIR'.
  
!      '--mandir=DIRNAME'
            Specify the installation directory for manual pages.  The
!           default is 'DATAROOTDIR/man'.  (Note that the manual pages are
!           only extracts from the full GCC manuals, which are provided in
!           Texinfo format.  The manpages are derived by an automatic
!           conversion process from parts of the full manual.)
  
!      '--with-gxx-include-dir=DIRNAME'
            Specify the installation directory for G++ header files.  The
            default depends on other configuration options, and differs
            between cross and native configurations.
  
!      '--with-specs=SPECS'
!           Specify additional command line driver SPECS. This can be
            useful if you need to turn on a non-standard feature by
            default without modifying the compiler's source code, for
            instance
!           '--with-specs=%{!fcommon:%{!fno-common:-fno-common}}'.  *Note
            Specifying subprocesses and the switches to pass to them:
            (gcc)Spec Files,
  
! '--program-prefix=PREFIX'
       GCC supports some transformations of the names of its programs when
       installing them.  This option prepends PREFIX to the names of
       programs to install in BINDIR (see above).  For example, specifying
!      '--program-prefix=foo-' would result in 'gcc' being installed as
!      '/usr/local/bin/foo-gcc'.
  
! '--program-suffix=SUFFIX'
       Appends SUFFIX to the names of programs to install in BINDIR (see
!      above).  For example, specifying '--program-suffix=-3.1' would
!      result in 'gcc' being installed as '/usr/local/bin/gcc-3.1'.
  
! '--program-transform-name=PATTERN'
!      Applies the 'sed' script PATTERN to be applied to the names of
       programs to install in BINDIR (see above).  PATTERN has to consist
!      of one or more basic 'sed' editing commands, separated by
!      semicolons.  For example, if you want the 'gcc' program name to be
!      transformed to the installed program '/usr/local/bin/myowngcc' and
!      the 'g++' program name to be transformed to
!      '/usr/local/bin/gspecial++' without changing other program names,
       you could use the pattern
!      '--program-transform-name='s/^gcc$/myowngcc/; s/^g++$/gspecial++/''
       to achieve this effect.
  
       All three options can be combined and used together, resulting in
       more complex conversion patterns.  As a basic rule, PREFIX (and
!      SUFFIX) are prepended (appended) before further transformations can
!      happen with a special transformation script PATTERN.
  
       As currently implemented, this option only takes effect for native
       builds; cross compiler binaries' names are not transformed even
*************** option.
*** 620,714 ****
  
       For native builds, some of the installed programs are also
       installed with the target alias in front of their name, as in
!      `i686-pc-linux-gnu-gcc'.  All of the above transformations happen
       before the target alias is prepended to the name--so, specifying
!      `--program-prefix=foo-' and `program-suffix=-3.1', the resulting
       binary would be installed as
!      `/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1'.
  
       As a last shortcoming, none of the installed Ada programs are
       transformed yet, which will be fixed in some time.
  
! `--with-local-prefix=DIRNAME'
       Specify the installation directory for local include files.  The
!      default is `/usr/local'.  Specify this option if you want the
!      compiler to search directory `DIRNAME/include' for locally
!      installed header files _instead_ of `/usr/local/include'.
  
!      You should specify `--with-local-prefix' *only* if your site has a
!      different convention (not `/usr/local') for where to put
       site-specific files.
  
!      The default value for `--with-local-prefix' is `/usr/local'
!      regardless of the value of `--prefix'.  Specifying `--prefix' has
       no effect on which directory GCC searches for local header files.
       This may seem counterintuitive, but actually it is logical.
  
!      The purpose of `--prefix' is to specify where to _install GCC_.
!      The local header files in `/usr/local/include'--if you put any in
!      that directory--are not part of GCC.  They are part of other
       programs--perhaps many others.  (GCC installs its own header files
!      in another directory which is based on the `--prefix' value.)
  
       Both the local-prefix include directory and the GCC-prefix include
!      directory are part of GCC's "system include" directories.
!      Although these two directories are not fixed, they need to be
!      searched in the proper order for the correct processing of the
!      include_next directive.  The local-prefix include directory is
!      searched before the GCC-prefix include directory.  Another
!      characteristic of system include directories is that pedantic
!      warnings are turned off for headers in these directories.
  
!      Some autoconf macros add `-I DIRECTORY' options to the compiler
       command line, to ensure that directories containing installed
       packages' headers are searched.  When DIRECTORY is one of GCC's
       system include directories, GCC will ignore the option so that
       system directories continue to be processed in the correct order.
!      This may result in a search order different from what was
!      specified but the directory will still be searched.
  
       GCC automatically searches for ordinary libraries using
!      `GCC_EXEC_PREFIX'.  Thus, when the same installation prefix is
!      used for both GCC and packages, GCC will automatically search for
!      both headers and libraries.  This provides a configuration that is
!      easy to use.  GCC behaves in a manner similar to that when it is
!      installed as a system compiler in `/usr'.
  
       Sites that need to install multiple versions of GCC may not want to
       use the above simple configuration.  It is possible to use the
!      `--program-prefix', `--program-suffix' and
!      `--program-transform-name' options to install multiple versions
       into a single directory, but it may be simpler to use different
!      prefixes and the `--with-local-prefix' option to specify the
!      location of the site-specific files for each version.  It will
!      then be necessary for users to specify explicitly the location of
!      local site libraries (e.g., with `LIBRARY_PATH').
  
!      The same value can be used for both `--with-local-prefix' and
!      `--prefix' provided it is not `/usr'.  This can be used to avoid
!      the default search of `/usr/local/include'.
  
!      *Do not* specify `/usr' as the `--with-local-prefix'!  The
!      directory you use for `--with-local-prefix' *must not* contain any
       of the system's standard header files.  If it did contain them,
       certain programs would be miscompiled (including GNU Emacs, on
       certain targets), because this would override and nullify the
!      header file corrections made by the `fixincludes' script.
  
       Indications are that people who use this option use it based on
!      mistaken ideas of what it is for.  People use it as if it
!      specified where to install part of GCC.  Perhaps they make this
!      assumption because installing GCC creates the directory.
  
! `--with-native-system-header-dir=DIRNAME'
       Specifies that DIRNAME is the directory that contains native system
!      header files, rather than `/usr/include'.  This option is most
       useful if you are creating a compiler that should be isolated from
       the system as much as possible.  It is most commonly used with the
!      `--with-sysroot' option and will cause GCC to search DIRNAME
!      inside the system root specified by that option.
  
! `--enable-shared[=PACKAGE[,...]]'
       Build shared versions of libraries, if shared libraries are
       supported on the target platform.  Unlike GCC 2.95.x and earlier,
       shared libraries are enabled by default on all platforms that
--- 640,734 ----
  
       For native builds, some of the installed programs are also
       installed with the target alias in front of their name, as in
!      'i686-pc-linux-gnu-gcc'.  All of the above transformations happen
       before the target alias is prepended to the name--so, specifying
!      '--program-prefix=foo-' and 'program-suffix=-3.1', the resulting
       binary would be installed as
!      '/usr/local/bin/i686-pc-linux-gnu-foo-gcc-3.1'.
  
       As a last shortcoming, none of the installed Ada programs are
       transformed yet, which will be fixed in some time.
  
! '--with-local-prefix=DIRNAME'
       Specify the installation directory for local include files.  The
!      default is '/usr/local'.  Specify this option if you want the
!      compiler to search directory 'DIRNAME/include' for locally
!      installed header files _instead_ of '/usr/local/include'.
  
!      You should specify '--with-local-prefix' *only* if your site has a
!      different convention (not '/usr/local') for where to put
       site-specific files.
  
!      The default value for '--with-local-prefix' is '/usr/local'
!      regardless of the value of '--prefix'.  Specifying '--prefix' has
       no effect on which directory GCC searches for local header files.
       This may seem counterintuitive, but actually it is logical.
  
!      The purpose of '--prefix' is to specify where to _install GCC_. The
!      local header files in '/usr/local/include'--if you put any in that
!      directory--are not part of GCC.  They are part of other
       programs--perhaps many others.  (GCC installs its own header files
!      in another directory which is based on the '--prefix' value.)
  
       Both the local-prefix include directory and the GCC-prefix include
!      directory are part of GCC's "system include" directories.  Although
!      these two directories are not fixed, they need to be searched in
!      the proper order for the correct processing of the include_next
!      directive.  The local-prefix include directory is searched before
!      the GCC-prefix include directory.  Another characteristic of system
!      include directories is that pedantic warnings are turned off for
!      headers in these directories.
  
!      Some autoconf macros add '-I DIRECTORY' options to the compiler
       command line, to ensure that directories containing installed
       packages' headers are searched.  When DIRECTORY is one of GCC's
       system include directories, GCC will ignore the option so that
       system directories continue to be processed in the correct order.
!      This may result in a search order different from what was specified
!      but the directory will still be searched.
  
       GCC automatically searches for ordinary libraries using
!      'GCC_EXEC_PREFIX'.  Thus, when the same installation prefix is used
!      for both GCC and packages, GCC will automatically search for both
!      headers and libraries.  This provides a configuration that is easy
!      to use.  GCC behaves in a manner similar to that when it is
!      installed as a system compiler in '/usr'.
  
       Sites that need to install multiple versions of GCC may not want to
       use the above simple configuration.  It is possible to use the
!      '--program-prefix', '--program-suffix' and
!      '--program-transform-name' options to install multiple versions
       into a single directory, but it may be simpler to use different
!      prefixes and the '--with-local-prefix' option to specify the
!      location of the site-specific files for each version.  It will then
!      be necessary for users to specify explicitly the location of local
!      site libraries (e.g., with 'LIBRARY_PATH').
  
!      The same value can be used for both '--with-local-prefix' and
!      '--prefix' provided it is not '/usr'.  This can be used to avoid
!      the default search of '/usr/local/include'.
  
!      *Do not* specify '/usr' as the '--with-local-prefix'!  The
!      directory you use for '--with-local-prefix' *must not* contain any
       of the system's standard header files.  If it did contain them,
       certain programs would be miscompiled (including GNU Emacs, on
       certain targets), because this would override and nullify the
!      header file corrections made by the 'fixincludes' script.
  
       Indications are that people who use this option use it based on
!      mistaken ideas of what it is for.  People use it as if it specified
!      where to install part of GCC.  Perhaps they make this assumption
!      because installing GCC creates the directory.
  
! '--with-native-system-header-dir=DIRNAME'
       Specifies that DIRNAME is the directory that contains native system
!      header files, rather than '/usr/include'.  This option is most
       useful if you are creating a compiler that should be isolated from
       the system as much as possible.  It is most commonly used with the
!      '--with-sysroot' option and will cause GCC to search DIRNAME inside
!      the system root specified by that option.
  
! '--enable-shared[=PACKAGE[,...]]'
       Build shared versions of libraries, if shared libraries are
       supported on the target platform.  Unlike GCC 2.95.x and earlier,
       shared libraries are enabled by default on all platforms that
*************** option.
*** 716,734 ****
  
       If a list of packages is given as an argument, build shared
       libraries only for the listed packages.  For other packages, only
!      static libraries will be built.  Package names currently
!      recognized in the GCC tree are `libgcc' (also known as `gcc'),
!      `libstdc++' (not `libstdc++-v3'), `libffi', `zlib', `boehm-gc',
!      `ada', `libada', `libjava', `libgo', and `libobjc'.  Note
!      `libiberty' does not support shared libraries at all.
  
!      Use `--disable-shared' to build only static libraries.  Note that
!      `--disable-shared' does not accept a list of package names as
!      argument, only `--enable-shared' does.
  
!      Contrast with `--enable-host-shared', which affects _host_ code.
  
! `--enable-host-shared'
       Specify that the _host_ code should be built into
       position-independent machine code (with -fPIC), allowing it to be
       used within shared libraries, but yielding a slightly slower
--- 736,754 ----
  
       If a list of packages is given as an argument, build shared
       libraries only for the listed packages.  For other packages, only
!      static libraries will be built.  Package names currently recognized
!      in the GCC tree are 'libgcc' (also known as 'gcc'), 'libstdc++'
!      (not 'libstdc++-v3'), 'libffi', 'zlib', 'boehm-gc', 'ada',
!      'libada', 'libjava', 'libgo', and 'libobjc'.  Note 'libiberty' does
!      not support shared libraries at all.
  
!      Use '--disable-shared' to build only static libraries.  Note that
!      '--disable-shared' does not accept a list of package names as
!      argument, only '--enable-shared' does.
  
!      Contrast with '--enable-host-shared', which affects _host_ code.
  
! '--enable-host-shared'
       Specify that the _host_ code should be built into
       position-independent machine code (with -fPIC), allowing it to be
       used within shared libraries, but yielding a slightly slower
*************** option.
*** 736,922 ****
  
       This option is required when building the libgccjit.so library.
  
!      Contrast with `--enable-shared', which affects _target_ libraries.
  
! `--with-gnu-as'
!      Specify that the compiler should assume that the assembler it
!      finds is the GNU assembler.  However, this does not modify the
!      rules to find an assembler and will result in confusion if the
!      assembler found is not actually the GNU assembler.  (Confusion may
!      also result if the compiler finds the GNU assembler but has not
!      been configured with `--with-gnu-as'.)  If you have more than one
!      assembler installed on your system, you may want to use this
!      option in connection with `--with-as=PATHNAME' or
!      `--with-build-time-tools=PATHNAME'.
  
       The following systems are the only ones where it makes a difference
       whether you use the GNU assembler.  On any other system,
!      `--with-gnu-as' has no effect.
! 
!         * `hppa1.0-ANY-ANY'
! 
!         * `hppa1.1-ANY-ANY'
! 
!         * `sparc-sun-solaris2.ANY'
  
!         * `sparc64-ANY-solaris2.ANY'
  
! `--with-as=PATHNAME'
       Specify that the compiler should use the assembler pointed to by
       PATHNAME, rather than the one found by the standard rules to find
       an assembler, which are:
          * Unless GCC is being built with a cross compiler, check the
!           `LIBEXEC/gcc/TARGET/VERSION' directory.  LIBEXEC defaults to
!           `EXEC-PREFIX/libexec'; EXEC-PREFIX defaults to PREFIX, which
!           defaults to `/usr/local' unless overridden by the
!           `--prefix=PATHNAME' switch described above.  TARGET is the
!           target system triple, such as `sparc-sun-solaris2.7', and
            VERSION denotes the GCC version, such as 3.0.
  
          * If the target system is the same that you are building on,
            check operating system specific directories (e.g.
!           `/usr/ccs/bin' on Sun Solaris 2).
  
!         * Check in the `PATH' for a tool whose name is prefixed by the
            target system triple.
  
!         * Check in the `PATH' for a tool whose name is not prefixed by
!           the target system triple, if the host and target system
!           triple are the same (in other words, we use a host tool if it
!           can be used for the target as well).
  
!      You may want to use `--with-as' if no assembler is installed in
!      the directories listed above, or if you have multiple assemblers
       installed and want to choose one that is not found by the above
       rules.
  
! `--with-gnu-ld'
!      Same as `--with-gnu-as' but for the linker.
  
! `--with-ld=PATHNAME'
!      Same as `--with-as' but for the linker.
  
! `--with-stabs'
       Specify that stabs debugging information should be used instead of
!      whatever format the host normally uses.  Normally GCC uses the
!      same debug format as the host system.
  
       On MIPS based systems and on Alphas, you must specify whether you
       want GCC to create the normal ECOFF debugging format, or to use
       BSD-style stabs passed through the ECOFF symbol table.  The normal
!      ECOFF debug format cannot fully handle languages other than C.
!      BSD stabs format can handle other languages, but it only works
!      with the GNU debugger GDB.
  
       Normally, GCC uses the ECOFF debugging format by default; if you
!      prefer BSD stabs, specify `--with-stabs' when you configure GCC.
  
       No matter which default you choose when you configure GCC, the user
!      can use the `-gcoff' and `-gstabs+' options to specify explicitly
       the debug format for a particular compilation.
  
!      `--with-stabs' is meaningful on the ISC system on the 386, also, if
!      `--with-gas' is used.  It selects use of stabs debugging
       information embedded in COFF output.  This kind of debugging
       information supports C++ well; ordinary COFF debugging information
       does not.
  
!      `--with-stabs' is also meaningful on 386 systems running SVR4.  It
       selects use of stabs debugging information embedded in ELF output.
       The C++ compiler currently (2.6.0) does not support the DWARF
       debugging information normally used on 386 SVR4 platforms; stabs
       provide a workable alternative.  This requires gas and gdb, as the
       normal SVR4 tools can not generate or interpret stabs.
  
! `--with-tls=DIALECT'
       Specify the default TLS dialect, for systems were there is a
!      choice.  For ARM targets, possible values for DIALECT are `gnu' or
!      `gnu2', which select between the original GNU dialect and the GNU
       TLS descriptor-based dialect.
  
! `--enable-multiarch'
       Specify whether to enable or disable multiarch support.  The
       default is to check for glibc start files in a multiarch location,
       and enable it if the files are found.  The auto detection is
       enabled for native builds, and for cross builds configured with
!      `--with-sysroot', and without `--with-native-system-header-dir'.
       More documentation about multiarch can be found at
!      `https://wiki.debian.org/Multiarch'.
  
! `--enable-sjlj-exceptions'
!      Force use of the `setjmp'/`longjmp'-based scheme for exceptions.
!      `configure' ordinarily picks the correct value based on the
       platform.  Only use this option if you are sure you need a
       different setting.
  
! `--enable-vtable-verify'
       Specify whether to enable or disable the vtable verification
       feature.  Enabling this feature causes libstdc++ to be built with
!      its virtual calls in verifiable mode.  This means that, when
!      linked with libvtv, every virtual call in libstdc++ will verify
!      the vtable pointer through which the call will be made before
!      actually making the call.  If not linked with libvtv, the verifier
!      will call stub functions (in libstdc++ itself) and do nothing.  If
!      vtable verification is disabled, then libstdc++ is not built with
!      its virtual calls in verifiable mode at all.  However the libvtv
!      library will still be built (see `--disable-libvtv' to turn off
!      building libvtv).  `--disable-vtable-verify' is the default.
  
! `--disable-multilib'
       Specify that multiple target libraries to support different target
       variants, calling conventions, etc. should not be built.  The
       default is to build a predefined set of them.
  
!      Some targets provide finer-grained control over which multilibs
!      are built (e.g., `--disable-softfloat'):
!     `arm-*-*'
            fpu, 26bit, underscore, interwork, biendian, nofmult.
  
!     `m68*-*-*'
            softfloat, m68881, m68000, m68020.
  
!     `mips*-*-*'
            single-float, biendian, softfloat.
  
!     `powerpc*-*-*, rs6000*-*-*'
            aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos,
            biendian, sysv, aix.
  
! 
! `--with-multilib-list=LIST'
! `--without-multilib-list'
       Specify what multilibs to build.  Currently only implemented for
       arm*-*-*, sh*-*-* and x86-64-*-linux*.
  
!     `arm*-*-*'
!           LIST is either `default' or `aprofile'.  Specifying `default'
            is equivalent to omitting this option while specifying
!           `aprofile' builds multilibs for each combination of ISA
!           (`-marm' or `-mthumb'), architecture (`-march=armv7-a',
!           `-march=armv7ve', or `-march=armv8-a'), FPU available (none,
!           `-mfpu=vfpv3-d16', `-mfpu=neon', `-mfpu=vfpv4-d16',
!           `-mfpu=neon-vfpv4' or `-mfpu=neon-fp-armv8' depending on
!           architecture) and floating-point ABI (`-mfloat-abi=softfp' or
!           `-mfloat-abi=hard').
  
!     `sh*-*-*'
!           LIST is a comma separated list of CPU names.  These must be
!           of the form `sh*' or `m*' (in which case they match the
!           compiler option for that processor).  The list should not
!           contain any endian options - these are handled by
!           `--with-endian'.
  
            If LIST is empty, then there will be no multilibs for extra
            processors.  The multilib for the secondary endian remains
            enabled.
  
!           As a special case, if an entry in the list starts with a `!'
            (exclamation point), then it is added to the list of excluded
            multilibs.  Entries of this sort should be compatible with
!           `MULTILIB_EXCLUDES' (once the leading `!' has been stripped).
  
!           If `--with-multilib-list' is not given, then a default set of
!           multilibs is selected based on the value of `--target'.  This
            is usually the complete set of libraries, but some targets
            imply a more specialized subset.
  
--- 756,937 ----
  
       This option is required when building the libgccjit.so library.
  
!      Contrast with '--enable-shared', which affects _target_ libraries.
  
! '--with-gnu-as'
!      Specify that the compiler should assume that the assembler it finds
!      is the GNU assembler.  However, this does not modify the rules to
!      find an assembler and will result in confusion if the assembler
!      found is not actually the GNU assembler.  (Confusion may also
!      result if the compiler finds the GNU assembler but has not been
!      configured with '--with-gnu-as'.)  If you have more than one
!      assembler installed on your system, you may want to use this option
!      in connection with '--with-as=PATHNAME' or
!      '--with-build-time-tools=PATHNAME'.
  
       The following systems are the only ones where it makes a difference
       whether you use the GNU assembler.  On any other system,
!      '--with-gnu-as' has no effect.
  
!         * 'hppa1.0-ANY-ANY'
!         * 'hppa1.1-ANY-ANY'
!         * 'sparc-sun-solaris2.ANY'
!         * 'sparc64-ANY-solaris2.ANY'
  
! '--with-as=PATHNAME'
       Specify that the compiler should use the assembler pointed to by
       PATHNAME, rather than the one found by the standard rules to find
       an assembler, which are:
          * Unless GCC is being built with a cross compiler, check the
!           'LIBEXEC/gcc/TARGET/VERSION' directory.  LIBEXEC defaults to
!           'EXEC-PREFIX/libexec'; EXEC-PREFIX defaults to PREFIX, which
!           defaults to '/usr/local' unless overridden by the
!           '--prefix=PATHNAME' switch described above.  TARGET is the
!           target system triple, such as 'sparc-sun-solaris2.7', and
            VERSION denotes the GCC version, such as 3.0.
  
          * If the target system is the same that you are building on,
            check operating system specific directories (e.g.
!           '/usr/ccs/bin' on Sun Solaris 2).
  
!         * Check in the 'PATH' for a tool whose name is prefixed by the
            target system triple.
  
!         * Check in the 'PATH' for a tool whose name is not prefixed by
!           the target system triple, if the host and target system triple
!           are the same (in other words, we use a host tool if it can be
!           used for the target as well).
  
!      You may want to use '--with-as' if no assembler is installed in the
!      directories listed above, or if you have multiple assemblers
       installed and want to choose one that is not found by the above
       rules.
  
! '--with-gnu-ld'
!      Same as '--with-gnu-as' but for the linker.
  
! '--with-ld=PATHNAME'
!      Same as '--with-as' but for the linker.
  
! '--with-stabs'
       Specify that stabs debugging information should be used instead of
!      whatever format the host normally uses.  Normally GCC uses the same
!      debug format as the host system.
  
       On MIPS based systems and on Alphas, you must specify whether you
       want GCC to create the normal ECOFF debugging format, or to use
       BSD-style stabs passed through the ECOFF symbol table.  The normal
!      ECOFF debug format cannot fully handle languages other than C.  BSD
!      stabs format can handle other languages, but it only works with the
!      GNU debugger GDB.
  
       Normally, GCC uses the ECOFF debugging format by default; if you
!      prefer BSD stabs, specify '--with-stabs' when you configure GCC.
  
       No matter which default you choose when you configure GCC, the user
!      can use the '-gcoff' and '-gstabs+' options to specify explicitly
       the debug format for a particular compilation.
  
!      '--with-stabs' is meaningful on the ISC system on the 386, also, if
!      '--with-gas' is used.  It selects use of stabs debugging
       information embedded in COFF output.  This kind of debugging
       information supports C++ well; ordinary COFF debugging information
       does not.
  
!      '--with-stabs' is also meaningful on 386 systems running SVR4.  It
       selects use of stabs debugging information embedded in ELF output.
       The C++ compiler currently (2.6.0) does not support the DWARF
       debugging information normally used on 386 SVR4 platforms; stabs
       provide a workable alternative.  This requires gas and gdb, as the
       normal SVR4 tools can not generate or interpret stabs.
  
! '--with-tls=DIALECT'
       Specify the default TLS dialect, for systems were there is a
!      choice.  For ARM targets, possible values for DIALECT are 'gnu' or
!      'gnu2', which select between the original GNU dialect and the GNU
       TLS descriptor-based dialect.
  
! '--enable-multiarch'
       Specify whether to enable or disable multiarch support.  The
       default is to check for glibc start files in a multiarch location,
       and enable it if the files are found.  The auto detection is
       enabled for native builds, and for cross builds configured with
!      '--with-sysroot', and without '--with-native-system-header-dir'.
       More documentation about multiarch can be found at
!      <https://wiki.debian.org/Multiarch>.
  
! '--enable-sjlj-exceptions'
!      Force use of the 'setjmp'/'longjmp'-based scheme for exceptions.
!      'configure' ordinarily picks the correct value based on the
       platform.  Only use this option if you are sure you need a
       different setting.
  
! '--enable-vtable-verify'
       Specify whether to enable or disable the vtable verification
       feature.  Enabling this feature causes libstdc++ to be built with
!      its virtual calls in verifiable mode.  This means that, when linked
!      with libvtv, every virtual call in libstdc++ will verify the vtable
!      pointer through which the call will be made before actually making
!      the call.  If not linked with libvtv, the verifier will call stub
!      functions (in libstdc++ itself) and do nothing.  If vtable
!      verification is disabled, then libstdc++ is not built with its
!      virtual calls in verifiable mode at all.  However the libvtv
!      library will still be built (see '--disable-libvtv' to turn off
!      building libvtv).  '--disable-vtable-verify' is the default.
  
! '--disable-multilib'
       Specify that multiple target libraries to support different target
       variants, calling conventions, etc. should not be built.  The
       default is to build a predefined set of them.
  
!      Some targets provide finer-grained control over which multilibs are
!      built (e.g., '--disable-softfloat'):
!      'arm-*-*'
            fpu, 26bit, underscore, interwork, biendian, nofmult.
  
!      'm68*-*-*'
            softfloat, m68881, m68000, m68020.
  
!      'mips*-*-*'
            single-float, biendian, softfloat.
  
!      'powerpc*-*-*, rs6000*-*-*'
            aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos,
            biendian, sysv, aix.
  
! '--with-multilib-list=LIST'
! '--without-multilib-list'
       Specify what multilibs to build.  Currently only implemented for
       arm*-*-*, sh*-*-* and x86-64-*-linux*.
  
!      'arm*-*-*'
!           LIST is either 'default' or 'aprofile'.  Specifying 'default'
            is equivalent to omitting this option while specifying
!           'aprofile' builds multilibs for each combination of ISA
!           ('-marm' or '-mthumb'), architecture ('-march=armv7-a',
!           '-march=armv7ve', or '-march=armv8-a'), FPU available (none,
!           '-mfpu=vfpv3-d16', '-mfpu=neon', '-mfpu=vfpv4-d16',
!           '-mfpu=neon-vfpv4' or '-mfpu=neon-fp-armv8' depending on
!           architecture) and floating-point ABI ('-mfloat-abi=softfp' or
!           '-mfloat-abi=hard').
  
!      'sh*-*-*'
!           LIST is a comma separated list of CPU names.  These must be of
!           the form 'sh*' or 'm*' (in which case they match the compiler
!           option for that processor).  The list should not contain any
!           endian options - these are handled by '--with-endian'.
  
            If LIST is empty, then there will be no multilibs for extra
            processors.  The multilib for the secondary endian remains
            enabled.
  
!           As a special case, if an entry in the list starts with a '!'
            (exclamation point), then it is added to the list of excluded
            multilibs.  Entries of this sort should be compatible with
!           'MULTILIB_EXCLUDES' (once the leading '!' has been stripped).
  
!           If '--with-multilib-list' is not given, then a default set of
!           multilibs is selected based on the value of '--target'.  This
            is usually the complete set of libraries, but some targets
            imply a more specialized subset.
  
*************** option.
*** 929,964 ****
                 --with-cpu=sh4a --with-endian=little,big \
                 --with-multilib-list=sh4al,!mb/m4al
  
!     `x86-64-*-linux*'
!           LIST is a comma separated list of `m32', `m64' and `mx32' to
            enable 32-bit, 64-bit and x32 run-time libraries,
            respectively.  If LIST is empty, then there will be no
            multilibs and only the default run-time library will be
            enabled.
  
!           If `--with-multilib-list' is not given, then only 32-bit and
            64-bit run-time libraries will be enabled.
  
! `--with-endian=ENDIANS'
       Specify what endians to use.  Currently only implemented for
       sh*-*-*.
  
       ENDIANS may be one of the following:
!     `big'
            Use big endian exclusively.
! 
!     `little'
            Use little endian exclusively.
! 
!     `big,little'
            Use big endian by default.  Provide a multilib for little
            endian.
! 
!     `little,big'
            Use little endian by default.  Provide a multilib for big
            endian.
  
! `--enable-threads'
       Specify that the target supports threads.  This affects the
       Objective-C compiler and runtime library, and exception handling
       for other languages like C++ and Java.  On some systems, this is
--- 944,976 ----
                 --with-cpu=sh4a --with-endian=little,big \
                 --with-multilib-list=sh4al,!mb/m4al
  
!      'x86-64-*-linux*'
!           LIST is a comma separated list of 'm32', 'm64' and 'mx32' to
            enable 32-bit, 64-bit and x32 run-time libraries,
            respectively.  If LIST is empty, then there will be no
            multilibs and only the default run-time library will be
            enabled.
  
!           If '--with-multilib-list' is not given, then only 32-bit and
            64-bit run-time libraries will be enabled.
  
! '--with-endian=ENDIANS'
       Specify what endians to use.  Currently only implemented for
       sh*-*-*.
  
       ENDIANS may be one of the following:
!      'big'
            Use big endian exclusively.
!      'little'
            Use little endian exclusively.
!      'big,little'
            Use big endian by default.  Provide a multilib for little
            endian.
!      'little,big'
            Use little endian by default.  Provide a multilib for big
            endian.
  
! '--enable-threads'
       Specify that the target supports threads.  This affects the
       Objective-C compiler and runtime library, and exception handling
       for other languages like C++ and Java.  On some systems, this is
*************** option.
*** 968,1210 ****
       model available will be configured for use.  Beware that on some
       systems, GCC has not been taught what threading models are
       generally available for the system.  In this case,
!      `--enable-threads' is an alias for `--enable-threads=single'.
  
! `--disable-threads'
       Specify that threading support should be disabled for the system.
!      This is an alias for `--enable-threads=single'.
  
! `--enable-threads=LIB'
       Specify that LIB is the thread support library.  This affects the
       Objective-C compiler and runtime library, and exception handling
       for other languages like C++ and Java.  The possibilities for LIB
       are:
  
!     `aix'
            AIX thread support.
! 
!     `dce'
            DCE thread support.
! 
!     `lynx'
            LynxOS thread support.
! 
!     `mipssde'
            MIPS SDE thread support.
! 
!     `no'
!           This is an alias for `single'.
! 
!     `posix'
            Generic POSIX/Unix98 thread support.
! 
!     `rtems'
            RTEMS thread support.
! 
!     `single'
            Disable thread support, should work for all platforms.
! 
!     `tpf'
            TPF thread support.
! 
!     `vxworks'
            VxWorks thread support.
! 
!     `win32'
            Microsoft Win32 API thread support.
  
! `--enable-tls'
       Specify that the target supports TLS (Thread Local Storage).
       Usually configure can correctly determine if TLS is supported.  In
       cases where it guesses incorrectly, TLS can be explicitly enabled
!      or disabled with `--enable-tls' or `--disable-tls'.  This can
!      happen if the assembler supports TLS but the C library does not,
!      or if the assumptions made by the configure test are incorrect.
  
! `--disable-tls'
!      Specify that the target does not support TLS.  This is an alias
!      for `--enable-tls=no'.
  
! `--with-cpu=CPU'
! `--with-cpu-32=CPU'
! `--with-cpu-64=CPU'
       Specify which cpu variant the compiler should generate code for by
!      default.  CPU will be used as the default value of the `-mcpu='
       switch.  This option is only supported on some targets, including
!      ARC, ARM, i386, M68k, PowerPC, and SPARC.  It is mandatory for
!      ARC.  The `--with-cpu-32' and `--with-cpu-64' options specify
!      separate default CPUs for 32-bit and 64-bit modes; these options
!      are only supported for i386, x86-64, PowerPC, and SPARC.
  
! `--with-schedule=CPU'
! `--with-arch=CPU'
! `--with-arch-32=CPU'
! `--with-arch-64=CPU'
! `--with-tune=CPU'
! `--with-tune-32=CPU'
! `--with-tune-64=CPU'
! `--with-abi=ABI'
! `--with-fpu=TYPE'
! `--with-float=TYPE'
       These configure options provide default values for the
!      `-mschedule=', `-march=', `-mtune=', `-mabi=', and `-mfpu='
!      options and for `-mhard-float' or `-msoft-float'.  As with
!      `--with-cpu', which switches will be accepted and acceptable values
!      of the arguments depend on the target.
  
! `--with-mode=MODE'
!      Specify if the compiler should default to `-marm' or `-mthumb'.
       This option is only supported on ARM targets.
  
! `--with-stack-offset=NUM'
!      This option sets the default for the -mstack-offset=NUM option,
!      and will thus generally also control the setting of this option for
       libraries.  This option is only supported on Epiphany targets.
  
! `--with-fpmath=ISA'
!      This options sets `-mfpmath=sse' by default and specifies the
       default ISA for floating-point arithmetics.  You can select either
!      `sse' which enables `-msse2' or `avx' which enables `-mavx' by
       default.  This option is only supported on i386 and x86-64 targets.
  
! `--with-fp-32=MODE'
!      On MIPS targets, set the default value for the `-mfp' option when
!      using the o32 ABI.  The possibilities for MODE are:
!     `32'
!           Use the o32 FP32 ABI extension, as with the `-mfp32'
            command-line option.
! 
!     `xx'
!           Use the o32 FPXX ABI extension, as with the `-mfpxx'
            command-line option.
! 
!     `64'
!           Use the o32 FP64 ABI extension, as with the `-mfp64'
            command-line option.
       In the absence of this configuration option the default is to use
       the o32 FP32 ABI extension.
  
! `--with-odd-spreg-32'
!      On MIPS targets, set the `-modd-spreg' option by default when using
       the o32 ABI.
  
! `--without-odd-spreg-32'
!      On MIPS targets, set the `-mno-odd-spreg' option by default when
!      using the o32 ABI.  This is normally used in conjunction with
!      `--with-fp-32=64' in order to target the o32 FP64A ABI extension.
  
! `--with-nan=ENCODING'
       On MIPS targets, set the default encoding convention to use for the
       special not-a-number (NaN) IEEE 754 floating-point data.  The
       possibilities for ENCODING are:
!     `legacy'
!           Use the legacy encoding, as with the `-mnan=legacy'
            command-line option.
! 
!     `2008'
!           Use the 754-2008 encoding, as with the `-mnan=2008'
            command-line option.
       To use this configuration option you must have an assembler version
!      installed that supports the `-mnan=' command-line option too.  In
       the absence of this configuration option the default convention is
!      the legacy encoding, as when neither of the `-mnan=2008' and
!      `-mnan=legacy' command-line options has been used.
  
! `--with-divide=TYPE'
       Specify how the compiler should generate code for checking for
       division by zero.  This option is only supported on the MIPS
       target.  The possibilities for TYPE are:
!     `traps'
            Division by zero checks use conditional traps (this is the
            default on systems that support conditional traps).
! 
!     `breaks'
            Division by zero checks use the break instruction.
  
! `--with-llsc'
!      On MIPS targets, make `-mllsc' the default when no `-mno-llsc'
       option is passed.  This is the default for Linux-based targets, as
       the kernel will emulate them if the ISA does not provide them.
  
! `--without-llsc'
!      On MIPS targets, make `-mno-llsc' the default when no `-mllsc'
       option is passed.
  
! `--with-synci'
!      On MIPS targets, make `-msynci' the default when no `-mno-synci'
       option is passed.
  
! `--without-synci'
!      On MIPS targets, make `-mno-synci' the default when no `-msynci'
       option is passed.  This is the default.
  
! `--with-mips-plt'
       On MIPS targets, make use of copy relocations and PLTs.  These
!      features are extensions to the traditional SVR4-based MIPS ABIs
!      and require support from GNU binutils and the runtime C library.
  
! `--enable-__cxa_atexit'
       Define if you want to use __cxa_atexit, rather than atexit, to
       register C++ destructors for local statics and global objects.
       This is essential for fully standards-compliant handling of
       destructors, but requires __cxa_atexit in libc.  This option is
       currently only available on systems with GNU libc.  When enabled,
!      this will cause `-fuse-cxa-atexit' to be passed by default.
  
! `--enable-gnu-indirect-function'
!      Define if you want to enable the `ifunc' attribute.  This option is
       currently only available on systems with GNU libc on certain
       targets.
  
! `--enable-target-optspace'
       Specify that target libraries should be optimized for code space
       instead of code speed.  This is the default for the m32r platform.
  
! `--with-cpp-install-dir=DIRNAME'
!      Specify that the user visible `cpp' program should be installed in
!      `PREFIX/DIRNAME/cpp', in addition to BINDIR.
  
! `--enable-comdat'
       Enable COMDAT group support.  This is primarily used to override
       the automatically detected value.
  
! `--enable-initfini-array'
!      Force the use of sections `.init_array' and `.fini_array' (instead
!      of `.init' and `.fini') for constructors and destructors.  Option
!      `--disable-initfini-array' has the opposite effect.  If neither
!      option is specified, the configure script will try to guess
!      whether the `.init_array' and `.fini_array' sections are supported
!      and, if they are, use them.
  
! `--enable-link-mutex'
       When building GCC, use a mutex to avoid linking the compilers for
       multiple languages at the same time, to avoid thrashing on build
!      systems with limited free memory.  The default is not to use such
!      a mutex.
  
! `--enable-maintainer-mode'
       The build rules that regenerate the Autoconf and Automake output
!      files as well as the GCC master message catalog `gcc.pot' are
       normally disabled.  This is because it can only be rebuilt if the
       complete source tree is present.  If you have changed the sources
       and want to rebuild the catalog, configuring with
!      `--enable-maintainer-mode' will enable this.  Note that you need a
!      recent version of the `gettext' tools to do so.
  
! `--disable-bootstrap'
       For a native build, the default configuration is to perform a
!      3-stage bootstrap of the compiler when `make' is invoked, testing
!      that GCC can compile itself correctly.  If you want to disable
!      this process, you can configure with `--disable-bootstrap'.
  
! `--enable-bootstrap'
       In special cases, you may want to perform a 3-stage build even if
       the target and host triplets are different.  This is possible when
       the host can run code compiled for the target (e.g. host is
       i686-linux, target is i486-linux).  Starting from GCC 4.2, to do
!      this you have to configure explicitly with `--enable-bootstrap'.
  
! `--enable-generated-files-in-srcdir'
       Neither the .c and .h files that are generated from Bison and flex
       nor the info manuals and man pages that are built from the .texi
       files are present in the SVN development tree.  When building GCC
--- 980,1208 ----
       model available will be configured for use.  Beware that on some
       systems, GCC has not been taught what threading models are
       generally available for the system.  In this case,
!      '--enable-threads' is an alias for '--enable-threads=single'.
  
! '--disable-threads'
       Specify that threading support should be disabled for the system.
!      This is an alias for '--enable-threads=single'.
  
! '--enable-threads=LIB'
       Specify that LIB is the thread support library.  This affects the
       Objective-C compiler and runtime library, and exception handling
       for other languages like C++ and Java.  The possibilities for LIB
       are:
  
!      'aix'
            AIX thread support.
!      'dce'
            DCE thread support.
!      'lynx'
            LynxOS thread support.
!      'mipssde'
            MIPS SDE thread support.
!      'no'
!           This is an alias for 'single'.
!      'posix'
            Generic POSIX/Unix98 thread support.
!      'rtems'
            RTEMS thread support.
!      'single'
            Disable thread support, should work for all platforms.
!      'tpf'
            TPF thread support.
!      'vxworks'
            VxWorks thread support.
!      'win32'
            Microsoft Win32 API thread support.
  
! '--enable-tls'
       Specify that the target supports TLS (Thread Local Storage).
       Usually configure can correctly determine if TLS is supported.  In
       cases where it guesses incorrectly, TLS can be explicitly enabled
!      or disabled with '--enable-tls' or '--disable-tls'.  This can
!      happen if the assembler supports TLS but the C library does not, or
!      if the assumptions made by the configure test are incorrect.
  
! '--disable-tls'
!      Specify that the target does not support TLS. This is an alias for
!      '--enable-tls=no'.
  
! '--with-cpu=CPU'
! '--with-cpu-32=CPU'
! '--with-cpu-64=CPU'
       Specify which cpu variant the compiler should generate code for by
!      default.  CPU will be used as the default value of the '-mcpu='
       switch.  This option is only supported on some targets, including
!      ARC, ARM, i386, M68k, PowerPC, and SPARC.  It is mandatory for ARC.
!      The '--with-cpu-32' and '--with-cpu-64' options specify separate
!      default CPUs for 32-bit and 64-bit modes; these options are only
!      supported for i386, x86-64, PowerPC, and SPARC.
  
! '--with-schedule=CPU'
! '--with-arch=CPU'
! '--with-arch-32=CPU'
! '--with-arch-64=CPU'
! '--with-tune=CPU'
! '--with-tune-32=CPU'
! '--with-tune-64=CPU'
! '--with-abi=ABI'
! '--with-fpu=TYPE'
! '--with-float=TYPE'
       These configure options provide default values for the
!      '-mschedule=', '-march=', '-mtune=', '-mabi=', and '-mfpu=' options
!      and for '-mhard-float' or '-msoft-float'.  As with '--with-cpu',
!      which switches will be accepted and acceptable values of the
!      arguments depend on the target.
  
! '--with-mode=MODE'
!      Specify if the compiler should default to '-marm' or '-mthumb'.
       This option is only supported on ARM targets.
  
! '--with-stack-offset=NUM'
!      This option sets the default for the -mstack-offset=NUM option, and
!      will thus generally also control the setting of this option for
       libraries.  This option is only supported on Epiphany targets.
  
! '--with-fpmath=ISA'
!      This options sets '-mfpmath=sse' by default and specifies the
       default ISA for floating-point arithmetics.  You can select either
!      'sse' which enables '-msse2' or 'avx' which enables '-mavx' by
       default.  This option is only supported on i386 and x86-64 targets.
  
! '--with-fp-32=MODE'
!      On MIPS targets, set the default value for the '-mfp' option when
!      using the o32 ABI. The possibilities for MODE are:
!      '32'
!           Use the o32 FP32 ABI extension, as with the '-mfp32'
            command-line option.
!      'xx'
!           Use the o32 FPXX ABI extension, as with the '-mfpxx'
            command-line option.
!      '64'
!           Use the o32 FP64 ABI extension, as with the '-mfp64'
            command-line option.
       In the absence of this configuration option the default is to use
       the o32 FP32 ABI extension.
  
! '--with-odd-spreg-32'
!      On MIPS targets, set the '-modd-spreg' option by default when using
       the o32 ABI.
  
! '--without-odd-spreg-32'
!      On MIPS targets, set the '-mno-odd-spreg' option by default when
!      using the o32 ABI. This is normally used in conjunction with
!      '--with-fp-32=64' in order to target the o32 FP64A ABI extension.
  
! '--with-nan=ENCODING'
       On MIPS targets, set the default encoding convention to use for the
       special not-a-number (NaN) IEEE 754 floating-point data.  The
       possibilities for ENCODING are:
!      'legacy'
!           Use the legacy encoding, as with the '-mnan=legacy'
            command-line option.
!      '2008'
!           Use the 754-2008 encoding, as with the '-mnan=2008'
            command-line option.
       To use this configuration option you must have an assembler version
!      installed that supports the '-mnan=' command-line option too.  In
       the absence of this configuration option the default convention is
!      the legacy encoding, as when neither of the '-mnan=2008' and
!      '-mnan=legacy' command-line options has been used.
  
! '--with-divide=TYPE'
       Specify how the compiler should generate code for checking for
       division by zero.  This option is only supported on the MIPS
       target.  The possibilities for TYPE are:
!      'traps'
            Division by zero checks use conditional traps (this is the
            default on systems that support conditional traps).
!      'breaks'
            Division by zero checks use the break instruction.
  
! '--with-llsc'
!      On MIPS targets, make '-mllsc' the default when no '-mno-llsc'
       option is passed.  This is the default for Linux-based targets, as
       the kernel will emulate them if the ISA does not provide them.
  
! '--without-llsc'
!      On MIPS targets, make '-mno-llsc' the default when no '-mllsc'
       option is passed.
  
! '--with-synci'
!      On MIPS targets, make '-msynci' the default when no '-mno-synci'
       option is passed.
  
! '--without-synci'
!      On MIPS targets, make '-mno-synci' the default when no '-msynci'
       option is passed.  This is the default.
  
! '--with-mips-plt'
       On MIPS targets, make use of copy relocations and PLTs.  These
!      features are extensions to the traditional SVR4-based MIPS ABIs and
!      require support from GNU binutils and the runtime C library.
  
! '--enable-__cxa_atexit'
       Define if you want to use __cxa_atexit, rather than atexit, to
       register C++ destructors for local statics and global objects.
       This is essential for fully standards-compliant handling of
       destructors, but requires __cxa_atexit in libc.  This option is
       currently only available on systems with GNU libc.  When enabled,
!      this will cause '-fuse-cxa-atexit' to be passed by default.
  
! '--enable-gnu-indirect-function'
!      Define if you want to enable the 'ifunc' attribute.  This option is
       currently only available on systems with GNU libc on certain
       targets.
  
! '--enable-target-optspace'
       Specify that target libraries should be optimized for code space
       instead of code speed.  This is the default for the m32r platform.
  
! '--with-cpp-install-dir=DIRNAME'
!      Specify that the user visible 'cpp' program should be installed in
!      'PREFIX/DIRNAME/cpp', in addition to BINDIR.
  
! '--enable-comdat'
       Enable COMDAT group support.  This is primarily used to override
       the automatically detected value.
  
! '--enable-initfini-array'
!      Force the use of sections '.init_array' and '.fini_array' (instead
!      of '.init' and '.fini') for constructors and destructors.  Option
!      '--disable-initfini-array' has the opposite effect.  If neither
!      option is specified, the configure script will try to guess whether
!      the '.init_array' and '.fini_array' sections are supported and, if
!      they are, use them.
  
! '--enable-link-mutex'
       When building GCC, use a mutex to avoid linking the compilers for
       multiple languages at the same time, to avoid thrashing on build
!      systems with limited free memory.  The default is not to use such a
!      mutex.
  
! '--enable-maintainer-mode'
       The build rules that regenerate the Autoconf and Automake output
!      files as well as the GCC master message catalog 'gcc.pot' are
       normally disabled.  This is because it can only be rebuilt if the
       complete source tree is present.  If you have changed the sources
       and want to rebuild the catalog, configuring with
!      '--enable-maintainer-mode' will enable this.  Note that you need a
!      recent version of the 'gettext' tools to do so.
  
! '--disable-bootstrap'
       For a native build, the default configuration is to perform a
!      3-stage bootstrap of the compiler when 'make' is invoked, testing
!      that GCC can compile itself correctly.  If you want to disable this
!      process, you can configure with '--disable-bootstrap'.
  
! '--enable-bootstrap'
       In special cases, you may want to perform a 3-stage build even if
       the target and host triplets are different.  This is possible when
       the host can run code compiled for the target (e.g. host is
       i686-linux, target is i486-linux).  Starting from GCC 4.2, to do
!      this you have to configure explicitly with '--enable-bootstrap'.
  
! '--enable-generated-files-in-srcdir'
       Neither the .c and .h files that are generated from Bison and flex
       nor the info manuals and man pages that are built from the .texi
       files are present in the SVN development tree.  When building GCC
*************** option.
*** 1212,1416 ****
       generated files are placed in your build directory, which allows
       for the source to be in a readonly directory.
  
!      If you configure with `--enable-generated-files-in-srcdir' then
       those generated files will go into the source directory.  This is
       mainly intended for generating release or prerelease tarballs of
       the GCC sources, since it is not a requirement that the users of
       source releases to have flex, Bison, or makeinfo.
  
! `--enable-version-specific-runtime-libs'
       Specify that runtime libraries should be installed in the compiler
!      specific subdirectory (`LIBDIR/gcc') rather than the usual places.
!      In addition, `libstdc++''s include files will be installed into
!      `LIBDIR' unless you overruled it by using
!      `--with-gxx-include-dir=DIRNAME'.  Using this option is
       particularly useful if you intend to use several versions of GCC in
!      parallel.  This is currently supported by `libgfortran',
!      `libjava', `libstdc++', and `libobjc'.
  
! `--with-aix-soname=`aix', `svr4' or `both''
!      Traditional AIX shared library versioning (versioned `Shared
!      Object' files as members of unversioned `Archive Library' files
!      named `lib.a') causes numerous headaches for package managers.
!      However, `Import Files' as members of `Archive Library' files
!      allow for *filename-based versioning* of shared libraries as seen
!      on Linux/SVR4, where this is called the "SONAME". But as they
!      prevent static linking, `Import Files' may be used with `Runtime
!      Linking' only, where the linker does search for `libNAME.so'
!      before `libNAME.a' library filenames with the `-lNAME' linker flag.
  
       For detailed information please refer to the AIX ld Command
       reference.
  
       As long as shared library creation is enabled, upon:
!     `--with-aix-soname=aix'
! 
!     `--with-aix-soname=both'
!           A (traditional AIX) `Shared Archive Library' file is created:
!              * using the `libNAME.a' filename scheme
! 
!              * with the `Shared Object' file as archive member named
!                `libNAME.so.V' (except for `libgcc_s', where the `Shared
!                 Object' file is named `shr.o' for backwards
                 compatibility), which
                    - is used for runtime loading from inside the
!                     `libNAME.a' file
! 
                    - is used for dynamic loading via
!                     `dlopen("libNAME.a(libNAME.so.V)", RTLD_MEMBER)'
! 
                    - is used for shared linking
! 
!                   - is used for static linking, so no separate `Static
!                     Archive    Library' file is needed
! 
! 
!     `--with-aix-soname=both'
! 
!     `--with-aix-soname=svr4'
!           A (second) `Shared Archive Library' file is created:
!              * using the `libNAME.so.V' filename scheme
! 
!              * with the `Shared Object' file as archive member named
!                `shr.o', which
!                   - is created with the `-G linker flag'
! 
!                   - has the `F_LOADONLY' flag set
! 
                    - is used for runtime loading from inside the
!                     `libNAME.so.V' file
! 
                    - is used for dynamic loading via
!                     `dlopen("libNAME.so.V(shr.o)",    RTLD_MEMBER)'
! 
! 
!              * with the `Import File' as archive member named `shr.imp',
                 which
!                   - refers to `libNAME.so.V(shr.o)' as the "SONAME", to
!                     be recorded    in the `Loader Section' of
!                     subsequent binaries
! 
!                   - indicates whether `libNAME.so.V(shr.o)' is 32 or 64
                      bit
- 
                    - lists all the public symbols exported by
!                     `lib.so.V(shr.o)',    eventually decorated with the
!                     ``weak' Keyword'
! 
                    - is necessary for shared linking against
!                     `lib.so.V(shr.o)'
! 
!             A symbolic link using the `libNAME.so' filename scheme is
            created:
!              * pointing to the `libNAME.so.V' `Shared Archive Library'
                 file
! 
!              * to permit the `ld Command' to find `lib.so.V(shr.imp)'
!                via   the `-lNAME' argument (requires `Runtime Linking'
!                to be enabled)
! 
!              * to permit dynamic loading of `lib.so.V(shr.o)' without
!                the need   to specify the version number via
!                `dlopen("libNAME.so(shr.o)",   RTLD_MEMBER)'
  
       As long as static library creation is enabled, upon:
!     `--with-aix-soname=svr4'
!           A `Static Archive Library' is created:
!              * using the `libNAME.a' filename scheme
! 
!              * with all the `Static Object' files as archive members,
                 which
                    - are used for static linking
  
! 
!      While the aix-soname=`svr4' option does not create `Shared Object'
!      files as members of unversioned `Archive Library' files any more,
!      package managers still are responsible to transfer `Shared Object'
       files found as member of a previously installed unversioned
!      `Archive Library' file into the newly installed `Archive Library'
       file with the same filename.
  
!      _WARNING:_ Creating `Shared Object' files with `Runtime Linking'
!      enabled may bloat the TOC, eventually leading to `TOC overflow'
!      errors, requiring the use of either the `-Wl,-bbigtoc' linker flag
!      (seen to break with the `GDB' debugger) or some of the TOC-related
!      compiler flags, *Note RS/6000 and PowerPC Options: (gcc)RS/6000
!      and PowerPC Options.
  
!      `--with-aix-soname' is currently supported by `libgcc_s' only, so
       this option is still experimental and not for normal use yet.
  
!      Default is the traditional behavior `--with-aix-soname=`aix''.
  
! `--enable-languages=LANG1,LANG2,...'
       Specify that only a particular subset of compilers and their
       runtime libraries should be built.  For a list of valid values for
!      LANGN you can issue the following command in the `gcc' directory
!      of your GCC source tree:
            grep ^language= */config-lang.in
!      Currently, you can use any of the following: `all', `ada', `c',
!      `c++', `fortran', `go', `java', `jit', `lto', `objc', `obj-c++'.
       Building the Ada compiler has special requirements, see below.  If
!      you do not pass this flag, or specify the option `all', then all
!      default languages available in the `gcc' sub-tree will be
       configured.  Ada, Go, Jit, and Objective-C++ are not default
       languages.  LTO is not a default language, but is built by default
!      because `--enable-lto' is enabled by default.  The other languages
       are default languages.
  
! `--enable-stage1-languages=LANG1,LANG2,...'
       Specify that a particular subset of compilers and their runtime
!      libraries should be built with the system C compiler during stage
!      1 of the bootstrap process, rather than only in later stages with
!      the bootstrapped C compiler.  The list of valid values is the same
!      as for `--enable-languages', and the option `all' will select all
!      of the languages enabled by `--enable-languages'.  This option is
       primarily useful for GCC development; for instance, when a
       development version of the compiler cannot bootstrap due to
!      compiler bugs, or when one is debugging front ends other than the
!      C front end.  When this option is used, one can then build the
!      target libraries for the specified languages with the stage-1
!      compiler by using `make stage1-bubble all-target', or run the
!      testsuite on the stage-1 compiler for the specified languages
!      using `make stage1-start check-gcc'.
  
! `--disable-libada'
       Specify that the run-time libraries and tools used by GNAT should
       not be built.  This can be useful for debugging, or for
       compatibility with previous Ada build procedures, when it was
!      required to explicitly do a `make -C gcc gnatlib_and_tools'.
  
! `--disable-libsanitizer'
       Specify that the run-time libraries for the various sanitizers
       should not be built.
  
! `--disable-libssp'
       Specify that the run-time libraries for stack smashing protection
       should not be built.
  
! `--disable-libquadmath'
       Specify that the GCC quad-precision math library should not be
       built.  On some systems, the library is required to be linkable
       when building the Fortran front end, unless
!      `--disable-libquadmath-support' is used.
  
! `--disable-libquadmath-support'
!      Specify that the Fortran front end and `libgfortran' do not add
!      support for `libquadmath' on systems supporting it.
  
! `--disable-libgomp'
       Specify that the GNU Offloading and Multi Processing Runtime
       Library should not be built.
  
! `--disable-libvtv'
       Specify that the run-time libraries used by vtable verification
       should not be built.
  
! `--with-dwarf2'
       Specify that the compiler should use DWARF 2 debugging information
       as the default.
  
! `--with-advance-toolchain=AT'
       On 64-bit PowerPC Linux systems, configure the compiler to use the
       header files, library files, and the dynamic linker from the
       Advance Toolchain release AT instead of the default versions that
--- 1210,1392 ----
       generated files are placed in your build directory, which allows
       for the source to be in a readonly directory.
  
!      If you configure with '--enable-generated-files-in-srcdir' then
       those generated files will go into the source directory.  This is
       mainly intended for generating release or prerelease tarballs of
       the GCC sources, since it is not a requirement that the users of
       source releases to have flex, Bison, or makeinfo.
  
! '--enable-version-specific-runtime-libs'
       Specify that runtime libraries should be installed in the compiler
!      specific subdirectory ('LIBDIR/gcc') rather than the usual places.
!      In addition, 'libstdc++''s include files will be installed into
!      'LIBDIR' unless you overruled it by using
!      '--with-gxx-include-dir=DIRNAME'.  Using this option is
       particularly useful if you intend to use several versions of GCC in
!      parallel.  This is currently supported by 'libgfortran', 'libjava',
!      'libstdc++', and 'libobjc'.
  
! '--with-aix-soname='aix', 'svr4' or 'both''
!      Traditional AIX shared library versioning (versioned 'Shared
!      Object' files as members of unversioned 'Archive Library' files
!      named 'lib.a') causes numerous headaches for package managers.
!      However, 'Import Files' as members of 'Archive Library' files allow
!      for *filename-based versioning* of shared libraries as seen on
!      Linux/SVR4, where this is called the "SONAME". But as they prevent
!      static linking, 'Import Files' may be used with 'Runtime Linking'
!      only, where the linker does search for 'libNAME.so' before
!      'libNAME.a' library filenames with the '-lNAME' linker flag.
  
       For detailed information please refer to the AIX ld Command
       reference.
  
       As long as shared library creation is enabled, upon:
!      '--with-aix-soname=aix'
!      '--with-aix-soname=both'
!           A (traditional AIX) 'Shared Archive Library' file is created:
!              * using the 'libNAME.a' filename scheme
!              * with the 'Shared Object' file as archive member named
!                'libNAME.so.V' (except for 'libgcc_s', where the 'Shared
!                Object' file is named 'shr.o' for backwards
                 compatibility), which
                    - is used for runtime loading from inside the
!                     'libNAME.a' file
                    - is used for dynamic loading via
!                     'dlopen("libNAME.a(libNAME.so.V)", RTLD_MEMBER)'
                    - is used for shared linking
!                   - is used for static linking, so no separate 'Static
!                     Archive Library' file is needed
!      '--with-aix-soname=both'
!      '--with-aix-soname=svr4'
!           A (second) 'Shared Archive Library' file is created:
!              * using the 'libNAME.so.V' filename scheme
!              * with the 'Shared Object' file as archive member named
!                'shr.o', which
!                   - is created with the '-G linker flag'
!                   - has the 'F_LOADONLY' flag set
                    - is used for runtime loading from inside the
!                     'libNAME.so.V' file
                    - is used for dynamic loading via
!                     'dlopen("libNAME.so.V(shr.o)", RTLD_MEMBER)'
!              * with the 'Import File' as archive member named 'shr.imp',
                 which
!                   - refers to 'libNAME.so.V(shr.o)' as the "SONAME", to
!                     be recorded in the 'Loader Section' of subsequent
!                     binaries
!                   - indicates whether 'libNAME.so.V(shr.o)' is 32 or 64
                      bit
                    - lists all the public symbols exported by
!                     'lib.so.V(shr.o)', eventually decorated with the
!                     ''weak' Keyword'
                    - is necessary for shared linking against
!                     'lib.so.V(shr.o)'
!           A symbolic link using the 'libNAME.so' filename scheme is
            created:
!              * pointing to the 'libNAME.so.V' 'Shared Archive Library'
                 file
!              * to permit the 'ld Command' to find 'lib.so.V(shr.imp)'
!                via the '-lNAME' argument (requires 'Runtime Linking' to
!                be enabled)
!              * to permit dynamic loading of 'lib.so.V(shr.o)' without
!                the need to specify the version number via
!                'dlopen("libNAME.so(shr.o)", RTLD_MEMBER)'
  
       As long as static library creation is enabled, upon:
!      '--with-aix-soname=svr4'
!           A 'Static Archive Library' is created:
!              * using the 'libNAME.a' filename scheme
!              * with all the 'Static Object' files as archive members,
                 which
                    - are used for static linking
  
!      While the aix-soname='svr4' option does not create 'Shared Object'
!      files as members of unversioned 'Archive Library' files any more,
!      package managers still are responsible to transfer 'Shared Object'
       files found as member of a previously installed unversioned
!      'Archive Library' file into the newly installed 'Archive Library'
       file with the same filename.
  
!      _WARNING:_ Creating 'Shared Object' files with 'Runtime Linking'
!      enabled may bloat the TOC, eventually leading to 'TOC overflow'
!      errors, requiring the use of either the '-Wl,-bbigtoc' linker flag
!      (seen to break with the 'GDB' debugger) or some of the TOC-related
!      compiler flags, *Note RS/6000 and PowerPC Options: (gcc)RS/6000 and
!      PowerPC Options.
  
!      '--with-aix-soname' is currently supported by 'libgcc_s' only, so
       this option is still experimental and not for normal use yet.
  
!      Default is the traditional behavior '--with-aix-soname='aix''.
  
! '--enable-languages=LANG1,LANG2,...'
       Specify that only a particular subset of compilers and their
       runtime libraries should be built.  For a list of valid values for
!      LANGN you can issue the following command in the 'gcc' directory of
!      your GCC source tree:
            grep ^language= */config-lang.in
!      Currently, you can use any of the following: 'all', 'ada', 'c',
!      'c++', 'fortran', 'go', 'java', 'jit', 'lto', 'objc', 'obj-c++'.
       Building the Ada compiler has special requirements, see below.  If
!      you do not pass this flag, or specify the option 'all', then all
!      default languages available in the 'gcc' sub-tree will be
       configured.  Ada, Go, Jit, and Objective-C++ are not default
       languages.  LTO is not a default language, but is built by default
!      because '--enable-lto' is enabled by default.  The other languages
       are default languages.
  
! '--enable-stage1-languages=LANG1,LANG2,...'
       Specify that a particular subset of compilers and their runtime
!      libraries should be built with the system C compiler during stage 1
!      of the bootstrap process, rather than only in later stages with the
!      bootstrapped C compiler.  The list of valid values is the same as
!      for '--enable-languages', and the option 'all' will select all of
!      the languages enabled by '--enable-languages'.  This option is
       primarily useful for GCC development; for instance, when a
       development version of the compiler cannot bootstrap due to
!      compiler bugs, or when one is debugging front ends other than the C
!      front end.  When this option is used, one can then build the target
!      libraries for the specified languages with the stage-1 compiler by
!      using 'make stage1-bubble all-target', or run the testsuite on the
!      stage-1 compiler for the specified languages using 'make
!      stage1-start check-gcc'.
  
! '--disable-libada'
       Specify that the run-time libraries and tools used by GNAT should
       not be built.  This can be useful for debugging, or for
       compatibility with previous Ada build procedures, when it was
!      required to explicitly do a 'make -C gcc gnatlib_and_tools'.
  
! '--disable-libsanitizer'
       Specify that the run-time libraries for the various sanitizers
       should not be built.
  
! '--disable-libssp'
       Specify that the run-time libraries for stack smashing protection
       should not be built.
  
! '--disable-libquadmath'
       Specify that the GCC quad-precision math library should not be
       built.  On some systems, the library is required to be linkable
       when building the Fortran front end, unless
!      '--disable-libquadmath-support' is used.
  
! '--disable-libquadmath-support'
!      Specify that the Fortran front end and 'libgfortran' do not add
!      support for 'libquadmath' on systems supporting it.
  
! '--disable-libgomp'
       Specify that the GNU Offloading and Multi Processing Runtime
       Library should not be built.
  
! '--disable-libvtv'
       Specify that the run-time libraries used by vtable verification
       should not be built.
  
! '--with-dwarf2'
       Specify that the compiler should use DWARF 2 debugging information
       as the default.
  
! '--with-advance-toolchain=AT'
       On 64-bit PowerPC Linux systems, configure the compiler to use the
       header files, library files, and the dynamic linker from the
       Advance Toolchain release AT instead of the default versions that
*************** option.
*** 1418,1425 ****
       intended for the developers of GCC, and it is not intended for
       general use.
  
! `--enable-targets=all'
! `--enable-targets=TARGET_LIST'
       Some GCC targets, e.g. powerpc64-linux, build bi-arch compilers.
       These are compilers that are able to generate either 64-bit or
       32-bit code.  Typically, the corresponding 32-bit target, e.g.
--- 1394,1401 ----
       intended for the developers of GCC, and it is not intended for
       general use.
  
! '--enable-targets=all'
! '--enable-targets=TARGET_LIST'
       Some GCC targets, e.g. powerpc64-linux, build bi-arch compilers.
       These are compilers that are able to generate either 64-bit or
       32-bit code.  Typically, the corresponding 32-bit target, e.g.
*************** option.
*** 1432,1731 ****
       affects sparc-linux, powerpc-linux, x86-linux, mips-linux and
       s390-linux.
  
! `--enable-default-pie'
!      Turn on `-fPIE' and `-pie' by default.
  
! `--enable-secureplt'
!      This option enables `-msecure-plt' by default for powerpc-linux.
       *Note RS/6000 and PowerPC Options: (gcc)RS/6000 and PowerPC
       Options,
  
! `--enable-default-ssp'
!      Turn on `-fstack-protector-strong' by default.
  
! `--enable-cld'
!      This option enables `-mcld' by default for 32-bit x86 targets.
       *Note i386 and x86-64 Options: (gcc)i386 and x86-64 Options,
  
! `--enable-win32-registry'
! `--enable-win32-registry=KEY'
! `--disable-win32-registry'
!      The `--enable-win32-registry' option enables Microsoft
       Windows-hosted GCC to look up installations paths in the registry
       using the following key:
  
!           `HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\KEY'
  
       KEY defaults to GCC version number, and can be overridden by the
!      `--enable-win32-registry=KEY' option.  Vendors and distributors
!      who use custom installers are encouraged to provide a different
!      key, perhaps one comprised of vendor name and GCC version number,
!      to avoid conflict with existing installations.  This feature is
       enabled by default, and can be disabled by
!      `--disable-win32-registry' option.  This option has no effect on
       the other hosts.
  
! `--nfp'
       Specify that the machine does not have a floating point unit.  This
!      option only applies to `m68k-sun-sunosN'.  On any other system,
!      `--nfp' has no effect.
  
! `--enable-werror'
! `--disable-werror'
! `--enable-werror=yes'
! `--enable-werror=no'
       When you specify this option, it controls whether certain files in
!      the compiler are built with `-Werror' in bootstrap stage2 and
!      later.  If you don't specify it, `-Werror' is turned on for the
       main development trunk.  However it defaults to off for release
       branches and final releases.  The specific files which get
!      `-Werror' are controlled by the Makefiles.
  
! `--enable-checking'
! `--enable-checking=LIST'
       When you specify this option, the compiler is built to perform
!      internal consistency checks of the requested complexity.  This
!      does not change the generated code, but adds error checking within
!      the compiler.  This will slow down the compiler and may only work
!      properly if you are building the compiler with GCC.  This is `yes'
!      by default when building from SVN or snapshots, but `release' for
!      releases.  The default for building the stage1 compiler is `yes'.
       More control over the checks may be had by specifying LIST.  The
!      categories of checks available are `yes' (most common checks
!      `assert,misc,tree,gc,rtlflag,runtime'), `no' (no checks at all),
!      `all' (all but `valgrind'), `release' (cheapest checks
!      `assert,runtime') or `none' (same as `no').  Individual checks can
!      be enabled with these flags `assert', `df', `fold', `gc', `gcac'
!      `misc', `rtl', `rtlflag', `runtime', `tree', and `valgrind'.
  
!      The `valgrind' check requires the external `valgrind' simulator,
!      available from `http://valgrind.org/'.  The `df', `rtl', `gcac'
!      and `valgrind' checks are very expensive.  To disable all
!      checking, `--disable-checking' or `--enable-checking=none' must be
!      explicitly requested.  Disabling assertions will make the compiler
!      and runtime slightly faster but increase the risk of undetected
!      internal errors causing wrong code to be generated.
  
! `--disable-stage1-checking'
! `--enable-stage1-checking'
! `--enable-stage1-checking=LIST'
!      If no `--enable-checking' option is specified the stage1 compiler
!      will be built with `yes' checking enabled, otherwise the stage1
!      checking flags are the same as specified by `--enable-checking'.
       To build the stage1 compiler with different checking options use
!      `--enable-stage1-checking'.  The list of checking options is the
!      same as for `--enable-checking'.  If your system is too slow or
!      too small to bootstrap a released compiler with checking for
!      stage1 enabled, you can use `--disable-stage1-checking' to disable
       checking for the stage1 compiler.
  
! `--enable-coverage'
! `--enable-coverage=LEVEL'
       With this option, the compiler is built to collect self coverage
       information, every time it is run.  This is for internal
       development purposes, and only works when the compiler is being
       built with gcc.  The LEVEL argument controls whether the compiler
!      is built optimized or not, values are `opt' and `noopt'.  For
!      coverage analysis you want to disable optimization, for
!      performance analysis you want to enable optimization.  When
!      coverage is enabled, the default level is without optimization.
  
! `--enable-gather-detailed-mem-stats'
       When this option is specified more detailed information on memory
       allocation is gathered.  This information is printed when using
!      `-fmem-report'.
  
! `--enable-valgrind-annotations'
       Mark selected memory related operations in the compiler when run
       under valgrind to suppress false positives.
  
! `--enable-nls'
! `--disable-nls'
!      The `--enable-nls' option enables Native Language Support (NLS),
       which lets GCC output diagnostics in languages other than American
       English.  Native Language Support is enabled by default if not
!      doing a canadian cross build.  The `--disable-nls' option disables
       NLS.
  
! `--with-included-gettext'
!      If NLS is enabled, the `--with-included-gettext' option causes the
!      build procedure to prefer its copy of GNU `gettext'.
  
! `--with-catgets'
!      If NLS is enabled, and if the host lacks `gettext' but has the
!      inferior `catgets' interface, the GCC build procedure normally
!      ignores `catgets' and instead uses GCC's copy of the GNU `gettext'
!      library.  The `--with-catgets' option causes the build procedure
!      to use the host's `catgets' in this situation.
  
! `--with-libiconv-prefix=DIR'
!      Search for libiconv header files in `DIR/include' and libiconv
!      library files in `DIR/lib'.
  
! `--enable-obsolete'
       Enable configuration for an obsoleted system.  If you attempt to
       configure GCC for a system (build, host, or target) which has been
       obsoleted, and you do not specify this flag, configure will halt
       with an error message.
  
!      All support for systems which have been obsoleted in one release
!      of GCC is removed entirely in the next major release, unless
!      someone steps forward to maintain the port.
  
! `--enable-decimal-float'
! `--enable-decimal-float=yes'
! `--enable-decimal-float=no'
! `--enable-decimal-float=bid'
! `--enable-decimal-float=dpd'
! `--disable-decimal-float'
       Enable (or disable) support for the C decimal floating point
       extension that is in the IEEE 754-2008 standard.  This is enabled
       by default only on PowerPC, i386, and x86_64 GNU/Linux systems.
       Other systems may also support it, but require the user to
       specifically enable it.  You can optionally control which decimal
!      floating point format is used (either `bid' or `dpd').  The `bid'
       (binary integer decimal) format is default on i386 and x86_64
!      systems, and the `dpd' (densely packed decimal) format is default
       on PowerPC systems.
  
! `--enable-fixed-point'
! `--disable-fixed-point'
       Enable (or disable) support for C fixed-point arithmetic.  This
       option is enabled by default for some targets (such as MIPS) which
       have hardware-support for fixed-point operations.  On other
       targets, you may enable this option manually.
  
! `--with-long-double-128'
!      Specify if `long double' type should be 128-bit by default on
       selected GNU/Linux architectures.  If using
!      `--without-long-double-128', `long double' will be by default
!      64-bit, the same as `double' type.  When neither of these
!      configure options are used, the default will be 128-bit `long
!      double' when built against GNU C Library 2.4 and later, 64-bit
!      `long double' otherwise.
  
! `--enable-fdpic'
       On SH Linux systems, generate ELF FDPIC code.
  
! `--with-gmp=PATHNAME'
! `--with-gmp-include=PATHNAME'
! `--with-gmp-lib=PATHNAME'
! `--with-mpfr=PATHNAME'
! `--with-mpfr-include=PATHNAME'
! `--with-mpfr-lib=PATHNAME'
! `--with-mpc=PATHNAME'
! `--with-mpc-include=PATHNAME'
! `--with-mpc-lib=PATHNAME'
       If you want to build GCC but do not have the GMP library, the MPFR
       library and/or the MPC library installed in a standard location and
       do not have their sources present in the GCC source tree then you
       can explicitly specify the directory where they are installed
!      (`--with-gmp=GMPINSTALLDIR', `--with-mpfr=MPFRINSTALLDIR',
!      `--with-mpc=MPCINSTALLDIR').  The `--with-gmp=GMPINSTALLDIR'
!      option is shorthand for `--with-gmp-lib=GMPINSTALLDIR/lib' and
!      `--with-gmp-include=GMPINSTALLDIR/include'.  Likewise the
!      `--with-mpfr=MPFRINSTALLDIR' option is shorthand for
!      `--with-mpfr-lib=MPFRINSTALLDIR/lib' and
!      `--with-mpfr-include=MPFRINSTALLDIR/include', also the
!      `--with-mpc=MPCINSTALLDIR' option is shorthand for
!      `--with-mpc-lib=MPCINSTALLDIR/lib' and
!      `--with-mpc-include=MPCINSTALLDIR/include'.  If these shorthand
       assumptions are not correct, you can use the explicit include and
       lib options directly.  You might also need to ensure the shared
       libraries can be found by the dynamic linker when building and
       using GCC, for example by setting the runtime shared library path
!      variable (`LD_LIBRARY_PATH' on GNU/Linux and Solaris systems).
  
       These flags are applicable to the host platform only.  When
       building a cross compiler, they will not be used to configure
       target libraries.
  
! `--with-isl=PATHNAME'
! `--with-isl-include=PATHNAME'
! `--with-isl-lib=PATHNAME'
!      If you do not have the isl library installed in a standard
!      location and you want to build GCC, you can explicitly specify the
!      directory where it is installed (`--with-isl=ISLINSTALLDIR'). The
!      `--with-isl=ISLINSTALLDIR' option is shorthand for
!      `--with-isl-lib=ISLINSTALLDIR/lib' and
!      `--with-isl-include=ISLINSTALLDIR/include'. If this shorthand
!      assumption is not correct, you can use the explicit include and
!      lib options directly.
  
       These flags are applicable to the host platform only.  When
       building a cross compiler, they will not be used to configure
       target libraries.
  
! `--with-stage1-ldflags=FLAGS'
       This option may be used to set linker flags to be used when linking
!      stage 1 of GCC.  These are also used when linking GCC if
!      configured with `--disable-bootstrap'.  If `--with-stage1-libs' is
!      not set to a value, then the default is `-static-libstdc++
!      -static-libgcc', if supported.
  
! `--with-stage1-libs=LIBS'
       This option may be used to set libraries to be used when linking
!      stage 1 of GCC.  These are also used when linking GCC if
!      configured with `--disable-bootstrap'.
  
! `--with-boot-ldflags=FLAGS'
       This option may be used to set linker flags to be used when linking
!      stage 2 and later when bootstrapping GCC.  If -with-boot-libs is
!      not is set to a value, then the default is `-static-libstdc++
       -static-libgcc'.
  
! `--with-boot-libs=LIBS'
       This option may be used to set libraries to be used when linking
       stage 2 and later when bootstrapping GCC.
  
! `--with-debug-prefix-map=MAP'
!      Convert source directory names using `-fdebug-prefix-map' when
!      building runtime libraries.  `MAP' is a space-separated list of
!      maps of the form `OLD=NEW'.
  
! `--enable-linker-build-id'
!      Tells GCC to pass `--build-id' option to the linker for all final
!      links (links performed without the `-r' or `--relocatable'
!      option), if the linker supports it.  If you specify
!      `--enable-linker-build-id', but your linker does not support
!      `--build-id' option, a warning is issued and the
!      `--enable-linker-build-id' option is ignored.  The default is off.
  
! `--with-linker-hash-style=CHOICE'
!      Tells GCC to pass `--hash-style=CHOICE' option to the linker for
!      all final links. CHOICE can be one of `sysv', `gnu', and `both'
!      where `sysv' is the default.
  
! `--enable-gnu-unique-object'
! `--disable-gnu-unique-object'
       Tells GCC to use the gnu_unique_object relocation for C++ template
       static data members and inline function local statics.  Enabled by
!      default for a toolchain with an assembler that accepts it and
!      GLIBC 2.11 or above, otherwise disabled.
  
! `--with-diagnostics-color=CHOICE'
!      Tells GCC to use CHOICE as the default for `-fdiagnostics-color='
!      option (if not used explicitly on the command line).  CHOICE can
!      be one of `never', `auto', `always', and `auto-if-env' where
!      `auto' is the default.  `auto-if-env' means that
!      `-fdiagnostics-color=auto' will be the default if `GCC_COLORS' is
!      present and non-empty in the environment, and
!      `-fdiagnostics-color=never' otherwise.
  
! `--enable-lto'
! `--disable-lto'
!      Enable support for link-time optimization (LTO).  This is enabled
!      by default, and may be disabled using `--disable-lto'.
  
! `--enable-linker-plugin-configure-flags=FLAGS'
! `--enable-linker-plugin-flags=FLAGS'
       By default, linker plugins (such as the LTO plugin) are built for
       the host system architecture.  For the case that the linker has a
       different (but run-time compatible) architecture, these flags can
       be specified to build plugins that are compatible to the linker.
       For example, if you are building GCC for a 64-bit x86_64
!      (`x86_64-unknown-linux-gnu') host system, but have a 32-bit x86
!      GNU/Linux (`i686-pc-linux-gnu') linker executable (which is
       executable on the former system), you can configure GCC as follows
       for getting compatible linker plugins:
  
--- 1408,1706 ----
       affects sparc-linux, powerpc-linux, x86-linux, mips-linux and
       s390-linux.
  
! '--enable-default-pie'
!      Turn on '-fPIE' and '-pie' by default.
  
! '--enable-secureplt'
!      This option enables '-msecure-plt' by default for powerpc-linux.
       *Note RS/6000 and PowerPC Options: (gcc)RS/6000 and PowerPC
       Options,
  
! '--enable-default-ssp'
!      Turn on '-fstack-protector-strong' by default.
  
! '--enable-cld'
!      This option enables '-mcld' by default for 32-bit x86 targets.
       *Note i386 and x86-64 Options: (gcc)i386 and x86-64 Options,
  
! '--enable-win32-registry'
! '--enable-win32-registry=KEY'
! '--disable-win32-registry'
!      The '--enable-win32-registry' option enables Microsoft
       Windows-hosted GCC to look up installations paths in the registry
       using the following key:
  
!           HKEY_LOCAL_MACHINE\SOFTWARE\Free Software Foundation\KEY
  
       KEY defaults to GCC version number, and can be overridden by the
!      '--enable-win32-registry=KEY' option.  Vendors and distributors who
!      use custom installers are encouraged to provide a different key,
!      perhaps one comprised of vendor name and GCC version number, to
!      avoid conflict with existing installations.  This feature is
       enabled by default, and can be disabled by
!      '--disable-win32-registry' option.  This option has no effect on
       the other hosts.
  
! '--nfp'
       Specify that the machine does not have a floating point unit.  This
!      option only applies to 'm68k-sun-sunosN'.  On any other system,
!      '--nfp' has no effect.
  
! '--enable-werror'
! '--disable-werror'
! '--enable-werror=yes'
! '--enable-werror=no'
       When you specify this option, it controls whether certain files in
!      the compiler are built with '-Werror' in bootstrap stage2 and
!      later.  If you don't specify it, '-Werror' is turned on for the
       main development trunk.  However it defaults to off for release
       branches and final releases.  The specific files which get
!      '-Werror' are controlled by the Makefiles.
  
! '--enable-checking'
! '--enable-checking=LIST'
       When you specify this option, the compiler is built to perform
!      internal consistency checks of the requested complexity.  This does
!      not change the generated code, but adds error checking within the
!      compiler.  This will slow down the compiler and may only work
!      properly if you are building the compiler with GCC.  This is 'yes'
!      by default when building from SVN or snapshots, but 'release' for
!      releases.  The default for building the stage1 compiler is 'yes'.
       More control over the checks may be had by specifying LIST.  The
!      categories of checks available are 'yes' (most common checks
!      'assert,misc,tree,gc,rtlflag,runtime'), 'no' (no checks at all),
!      'all' (all but 'valgrind'), 'release' (cheapest checks
!      'assert,runtime') or 'none' (same as 'no').  Individual checks can
!      be enabled with these flags 'assert', 'df', 'fold', 'gc', 'gcac'
!      'misc', 'rtl', 'rtlflag', 'runtime', 'tree', and 'valgrind'.
  
!      The 'valgrind' check requires the external 'valgrind' simulator,
!      available from <http://valgrind.org/>.  The 'df', 'rtl', 'gcac' and
!      'valgrind' checks are very expensive.  To disable all checking,
!      '--disable-checking' or '--enable-checking=none' must be explicitly
!      requested.  Disabling assertions will make the compiler and runtime
!      slightly faster but increase the risk of undetected internal errors
!      causing wrong code to be generated.
  
! '--disable-stage1-checking'
! '--enable-stage1-checking'
! '--enable-stage1-checking=LIST'
!      If no '--enable-checking' option is specified the stage1 compiler
!      will be built with 'yes' checking enabled, otherwise the stage1
!      checking flags are the same as specified by '--enable-checking'.
       To build the stage1 compiler with different checking options use
!      '--enable-stage1-checking'.  The list of checking options is the
!      same as for '--enable-checking'.  If your system is too slow or too
!      small to bootstrap a released compiler with checking for stage1
!      enabled, you can use '--disable-stage1-checking' to disable
       checking for the stage1 compiler.
  
! '--enable-coverage'
! '--enable-coverage=LEVEL'
       With this option, the compiler is built to collect self coverage
       information, every time it is run.  This is for internal
       development purposes, and only works when the compiler is being
       built with gcc.  The LEVEL argument controls whether the compiler
!      is built optimized or not, values are 'opt' and 'noopt'.  For
!      coverage analysis you want to disable optimization, for performance
!      analysis you want to enable optimization.  When coverage is
!      enabled, the default level is without optimization.
  
! '--enable-gather-detailed-mem-stats'
       When this option is specified more detailed information on memory
       allocation is gathered.  This information is printed when using
!      '-fmem-report'.
  
! '--enable-valgrind-annotations'
       Mark selected memory related operations in the compiler when run
       under valgrind to suppress false positives.
  
! '--enable-nls'
! '--disable-nls'
!      The '--enable-nls' option enables Native Language Support (NLS),
       which lets GCC output diagnostics in languages other than American
       English.  Native Language Support is enabled by default if not
!      doing a canadian cross build.  The '--disable-nls' option disables
       NLS.
  
! '--with-included-gettext'
!      If NLS is enabled, the '--with-included-gettext' option causes the
!      build procedure to prefer its copy of GNU 'gettext'.
  
! '--with-catgets'
!      If NLS is enabled, and if the host lacks 'gettext' but has the
!      inferior 'catgets' interface, the GCC build procedure normally
!      ignores 'catgets' and instead uses GCC's copy of the GNU 'gettext'
!      library.  The '--with-catgets' option causes the build procedure to
!      use the host's 'catgets' in this situation.
  
! '--with-libiconv-prefix=DIR'
!      Search for libiconv header files in 'DIR/include' and libiconv
!      library files in 'DIR/lib'.
  
! '--enable-obsolete'
       Enable configuration for an obsoleted system.  If you attempt to
       configure GCC for a system (build, host, or target) which has been
       obsoleted, and you do not specify this flag, configure will halt
       with an error message.
  
!      All support for systems which have been obsoleted in one release of
!      GCC is removed entirely in the next major release, unless someone
!      steps forward to maintain the port.
  
! '--enable-decimal-float'
! '--enable-decimal-float=yes'
! '--enable-decimal-float=no'
! '--enable-decimal-float=bid'
! '--enable-decimal-float=dpd'
! '--disable-decimal-float'
       Enable (or disable) support for the C decimal floating point
       extension that is in the IEEE 754-2008 standard.  This is enabled
       by default only on PowerPC, i386, and x86_64 GNU/Linux systems.
       Other systems may also support it, but require the user to
       specifically enable it.  You can optionally control which decimal
!      floating point format is used (either 'bid' or 'dpd').  The 'bid'
       (binary integer decimal) format is default on i386 and x86_64
!      systems, and the 'dpd' (densely packed decimal) format is default
       on PowerPC systems.
  
! '--enable-fixed-point'
! '--disable-fixed-point'
       Enable (or disable) support for C fixed-point arithmetic.  This
       option is enabled by default for some targets (such as MIPS) which
       have hardware-support for fixed-point operations.  On other
       targets, you may enable this option manually.
  
! '--with-long-double-128'
!      Specify if 'long double' type should be 128-bit by default on
       selected GNU/Linux architectures.  If using
!      '--without-long-double-128', 'long double' will be by default
!      64-bit, the same as 'double' type.  When neither of these configure
!      options are used, the default will be 128-bit 'long double' when
!      built against GNU C Library 2.4 and later, 64-bit 'long double'
!      otherwise.
  
! '--enable-fdpic'
       On SH Linux systems, generate ELF FDPIC code.
  
! '--with-gmp=PATHNAME'
! '--with-gmp-include=PATHNAME'
! '--with-gmp-lib=PATHNAME'
! '--with-mpfr=PATHNAME'
! '--with-mpfr-include=PATHNAME'
! '--with-mpfr-lib=PATHNAME'
! '--with-mpc=PATHNAME'
! '--with-mpc-include=PATHNAME'
! '--with-mpc-lib=PATHNAME'
       If you want to build GCC but do not have the GMP library, the MPFR
       library and/or the MPC library installed in a standard location and
       do not have their sources present in the GCC source tree then you
       can explicitly specify the directory where they are installed
!      ('--with-gmp=GMPINSTALLDIR', '--with-mpfr=MPFRINSTALLDIR',
!      '--with-mpc=MPCINSTALLDIR').  The '--with-gmp=GMPINSTALLDIR' option
!      is shorthand for '--with-gmp-lib=GMPINSTALLDIR/lib' and
!      '--with-gmp-include=GMPINSTALLDIR/include'.  Likewise the
!      '--with-mpfr=MPFRINSTALLDIR' option is shorthand for
!      '--with-mpfr-lib=MPFRINSTALLDIR/lib' and
!      '--with-mpfr-include=MPFRINSTALLDIR/include', also the
!      '--with-mpc=MPCINSTALLDIR' option is shorthand for
!      '--with-mpc-lib=MPCINSTALLDIR/lib' and
!      '--with-mpc-include=MPCINSTALLDIR/include'.  If these shorthand
       assumptions are not correct, you can use the explicit include and
       lib options directly.  You might also need to ensure the shared
       libraries can be found by the dynamic linker when building and
       using GCC, for example by setting the runtime shared library path
!      variable ('LD_LIBRARY_PATH' on GNU/Linux and Solaris systems).
  
       These flags are applicable to the host platform only.  When
       building a cross compiler, they will not be used to configure
       target libraries.
  
! '--with-isl=PATHNAME'
! '--with-isl-include=PATHNAME'
! '--with-isl-lib=PATHNAME'
!      If you do not have the isl library installed in a standard location
!      and you want to build GCC, you can explicitly specify the directory
!      where it is installed ('--with-isl=ISLINSTALLDIR').  The
!      '--with-isl=ISLINSTALLDIR' option is shorthand for
!      '--with-isl-lib=ISLINSTALLDIR/lib' and
!      '--with-isl-include=ISLINSTALLDIR/include'.  If this shorthand
!      assumption is not correct, you can use the explicit include and lib
!      options directly.
  
       These flags are applicable to the host platform only.  When
       building a cross compiler, they will not be used to configure
       target libraries.
  
! '--with-stage1-ldflags=FLAGS'
       This option may be used to set linker flags to be used when linking
!      stage 1 of GCC. These are also used when linking GCC if configured
!      with '--disable-bootstrap'.  If '--with-stage1-libs' is not set to
!      a value, then the default is '-static-libstdc++ -static-libgcc', if
!      supported.
  
! '--with-stage1-libs=LIBS'
       This option may be used to set libraries to be used when linking
!      stage 1 of GCC. These are also used when linking GCC if configured
!      with '--disable-bootstrap'.
  
! '--with-boot-ldflags=FLAGS'
       This option may be used to set linker flags to be used when linking
!      stage 2 and later when bootstrapping GCC. If -with-boot-libs is not
!      is set to a value, then the default is '-static-libstdc++
       -static-libgcc'.
  
! '--with-boot-libs=LIBS'
       This option may be used to set libraries to be used when linking
       stage 2 and later when bootstrapping GCC.
  
! '--with-debug-prefix-map=MAP'
!      Convert source directory names using '-fdebug-prefix-map' when
!      building runtime libraries.  'MAP' is a space-separated list of
!      maps of the form 'OLD=NEW'.
  
! '--enable-linker-build-id'
!      Tells GCC to pass '--build-id' option to the linker for all final
!      links (links performed without the '-r' or '--relocatable' option),
!      if the linker supports it.  If you specify
!      '--enable-linker-build-id', but your linker does not support
!      '--build-id' option, a warning is issued and the
!      '--enable-linker-build-id' option is ignored.  The default is off.
  
! '--with-linker-hash-style=CHOICE'
!      Tells GCC to pass '--hash-style=CHOICE' option to the linker for
!      all final links.  CHOICE can be one of 'sysv', 'gnu', and 'both'
!      where 'sysv' is the default.
  
! '--enable-gnu-unique-object'
! '--disable-gnu-unique-object'
       Tells GCC to use the gnu_unique_object relocation for C++ template
       static data members and inline function local statics.  Enabled by
!      default for a toolchain with an assembler that accepts it and GLIBC
!      2.11 or above, otherwise disabled.
  
! '--with-diagnostics-color=CHOICE'
!      Tells GCC to use CHOICE as the default for '-fdiagnostics-color='
!      option (if not used explicitly on the command line).  CHOICE can be
!      one of 'never', 'auto', 'always', and 'auto-if-env' where 'auto' is
!      the default.  'auto-if-env' means that '-fdiagnostics-color=auto'
!      will be the default if 'GCC_COLORS' is present and non-empty in the
!      environment, and '-fdiagnostics-color=never' otherwise.
  
! '--enable-lto'
! '--disable-lto'
!      Enable support for link-time optimization (LTO). This is enabled by
!      default, and may be disabled using '--disable-lto'.
  
! '--enable-linker-plugin-configure-flags=FLAGS'
! '--enable-linker-plugin-flags=FLAGS'
       By default, linker plugins (such as the LTO plugin) are built for
       the host system architecture.  For the case that the linker has a
       different (but run-time compatible) architecture, these flags can
       be specified to build plugins that are compatible to the linker.
       For example, if you are building GCC for a 64-bit x86_64
!      ('x86_64-unknown-linux-gnu') host system, but have a 32-bit x86
!      GNU/Linux ('i686-pc-linux-gnu') linker executable (which is
       executable on the former system), you can configure GCC as follows
       for getting compatible linker plugins:
  
*************** option.
*** 1734,1755 ****
                --enable-linker-plugin-configure-flags=--host=i686-pc-linux-gnu \
                --enable-linker-plugin-flags='CC=gcc\ -m32\ -Wl,-rpath,[...]/i686-pc-linux-gnu/lib'
  
! `--with-plugin-ld=PATHNAME'
       Enable an alternate linker to be used at link-time optimization
!      (LTO) link time when `-fuse-linker-plugin' is enabled.  This
!      linker should have plugin support such as gold starting with
!      version 2.20 or GNU ld starting with version 2.21.  See
!      `-fuse-linker-plugin' for details.
  
! `--enable-canonical-system-headers'
! `--disable-canonical-system-headers'
!      Enable system header path canonicalization for `libcpp'.  This can
       produce shorter header file paths in diagnostics and dependency
!      output files, but these changed header paths may conflict with
!      some compilation environments.  Enabled by default, and may be
!      disabled using `--disable-canonical-system-headers'.
  
! `--with-glibc-version=MAJOR.MINOR'
       Tell GCC that when the GNU C Library (glibc) is used on the target
       it will be version MAJOR.MINOR or later.  Normally this can be
       detected from the C library's header files, but this option may be
--- 1709,1730 ----
                --enable-linker-plugin-configure-flags=--host=i686-pc-linux-gnu \
                --enable-linker-plugin-flags='CC=gcc\ -m32\ -Wl,-rpath,[...]/i686-pc-linux-gnu/lib'
  
! '--with-plugin-ld=PATHNAME'
       Enable an alternate linker to be used at link-time optimization
!      (LTO) link time when '-fuse-linker-plugin' is enabled.  This linker
!      should have plugin support such as gold starting with version 2.20
!      or GNU ld starting with version 2.21.  See '-fuse-linker-plugin'
!      for details.
  
! '--enable-canonical-system-headers'
! '--disable-canonical-system-headers'
!      Enable system header path canonicalization for 'libcpp'.  This can
       produce shorter header file paths in diagnostics and dependency
!      output files, but these changed header paths may conflict with some
!      compilation environments.  Enabled by default, and may be disabled
!      using '--disable-canonical-system-headers'.
  
! '--with-glibc-version=MAJOR.MINOR'
       Tell GCC that when the GNU C Library (glibc) is used on the target
       it will be version MAJOR.MINOR or later.  Normally this can be
       detected from the C library's header files, but this option may be
*************** option.
*** 1761,1795 ****
       glibc.  However, such configurations may not work well as not all
       the relevant configuration in GCC is on a per-multilib basis.
  
! `--enable-as-accelerator-for=TARGET'
!      Build as offload target compiler. Specify offload host triple by
       TARGET.
  
! `--enable-offload-targets=TARGET1[=PATH1],...,TARGETN[=PATHN]'
       Enable offloading to targets TARGET1, ..., TARGETN.  Offload
       compilers are expected to be already installed.  Default search
!      path for them is `EXEC-PREFIX', but it can be changed by
!      specifying paths PATH1, ..., PATHN.
  
            % SRCDIR/configure \
                --enable-offload-target=i686-unknown-linux-gnu=/path/to/i686/compiler,x86_64-pc-linux-gnu
  
!      If `hsa' is specified as one of the targets, the compiler will be
       built with support for HSA GPU accelerators.  Because the same
       compiler will emit the accelerator code, no path should be
       specified.
  
! `--with-hsa-runtime=PATHNAME'
! `--with-hsa-runtime-include=PATHNAME'
! `--with-hsa-runtime-lib=PATHNAME'
       If you configure GCC with HSA offloading but do not have the HSA
       run-time library installed in a standard location then you can
       explicitly specify the directory where they are installed.  The
!      `--with-hsa-runtime=HSAINSTALLDIR' option is a shorthand for
!      `--with-hsa-runtime-lib=HSAINSTALLDIR/lib' and
!      `--with-hsa-runtime-include=HSAINSTALLDIR/include'.
  
- `--with-hsa-kmt-lib=PATHNAME'
       If you configure GCC with HSA offloading but do not have the HSA
       KMT library installed in a standard location then you can
       explicitly specify the directory where it resides.
--- 1736,1772 ----
       glibc.  However, such configurations may not work well as not all
       the relevant configuration in GCC is on a per-multilib basis.
  
! '--enable-as-accelerator-for=TARGET'
!      Build as offload target compiler.  Specify offload host triple by
       TARGET.
  
! '--enable-offload-targets=TARGET1[=PATH1],...,TARGETN[=PATHN]'
       Enable offloading to targets TARGET1, ..., TARGETN.  Offload
       compilers are expected to be already installed.  Default search
!      path for them is 'EXEC-PREFIX', but it can be changed by specifying
!      paths PATH1, ..., PATHN.
  
            % SRCDIR/configure \
                --enable-offload-target=i686-unknown-linux-gnu=/path/to/i686/compiler,x86_64-pc-linux-gnu
  
!      If 'hsa' is specified as one of the targets, the compiler will be
       built with support for HSA GPU accelerators.  Because the same
       compiler will emit the accelerator code, no path should be
       specified.
  
! '--with-hsa-runtime=PATHNAME'
! '--with-hsa-runtime-include=PATHNAME'
! '--with-hsa-runtime-lib=PATHNAME'
! 
       If you configure GCC with HSA offloading but do not have the HSA
       run-time library installed in a standard location then you can
       explicitly specify the directory where they are installed.  The
!      '--with-hsa-runtime=HSAINSTALLDIR' option is a shorthand for
!      '--with-hsa-runtime-lib=HSAINSTALLDIR/lib' and
!      '--with-hsa-runtime-include=HSAINSTALLDIR/include'.
! 
! '--with-hsa-kmt-lib=PATHNAME'
  
       If you configure GCC with HSA offloading but do not have the HSA
       KMT library installed in a standard location then you can
       explicitly specify the directory where it resides.
*************** Cross-Compiler-Specific Options
*** 1799,2171 ****
  
  The following options only apply to building cross compilers.
  
! `--with-sysroot'
! `--with-sysroot=DIR'
       Tells GCC to consider DIR as the root of a tree that contains (a
       subset of) the root filesystem of the target operating system.
       Target system headers, libraries and run-time object files will be
       searched for in there.  More specifically, this acts as if
!      `--sysroot=DIR' was added to the default options of the built
       compiler.  The specified directory is not copied into the install
!      tree, unlike the options `--with-headers' and `--with-libs' that
!      this option obsoletes.  The default value, in case
!      `--with-sysroot' is not given an argument, is
!      `${gcc_tooldir}/sys-root'.  If the specified directory is a
!      subdirectory of `${exec_prefix}', then it will be found relative to
!      the GCC binaries if the installation tree is moved.
  
       This option affects the system root for the compiler used to build
       target libraries (which runs on the build system) and the compiler
!      newly installed with `make install'; it does not affect the
       compiler which is used to build GCC itself.
  
!      If you specify the `--with-native-system-header-dir=DIRNAME'
!      option then the compiler will search that directory within DIRNAME
!      for native system headers rather than the default `/usr/include'.
  
! `--with-build-sysroot'
! `--with-build-sysroot=DIR'
!      Tells GCC to consider DIR as the system root (see
!      `--with-sysroot') while building target libraries, instead of the
!      directory specified with `--with-sysroot'.  This option is only
!      useful when you are already using `--with-sysroot'.  You can use
!      `--with-build-sysroot' when you are configuring with `--prefix'
!      set to a directory that is different from the one in which you are
!      installing GCC and your target libraries.
  
       This option affects the system root for the compiler used to build
       target libraries (which runs on the build system); it does not
       affect the compiler which is used to build GCC itself.
  
!      If you specify the `--with-native-system-header-dir=DIRNAME'
!      option then the compiler will search that directory within DIRNAME
!      for native system headers rather than the default `/usr/include'.
  
! `--with-headers'
! `--with-headers=DIR'
!      Deprecated in favor of `--with-sysroot'.  Specifies that target
       headers are available when building a cross compiler.  The DIR
       argument specifies a directory which has the target include files.
!      These include files will be copied into the `gcc' install
       directory.  _This option with the DIR argument is required_ when
!      building a cross compiler, if `PREFIX/TARGET/sys-include' doesn't
!      pre-exist.  If `PREFIX/TARGET/sys-include' does pre-exist, the DIR
!      argument may be omitted.  `fixincludes' will be run on these files
       to make them compatible with GCC.
  
! `--without-headers'
       Tells GCC not use any target headers from a libc when building a
       cross compiler.  When crossing to GNU/Linux, you need the headers
       so GCC can build the exception handling for libgcc.
  
! `--with-libs'
! `--with-libs="DIR1 DIR2 ... DIRN"'
!      Deprecated in favor of `--with-sysroot'.  Specifies a list of
       directories which contain the target runtime libraries.  These
!      libraries will be copied into the `gcc' install directory.  If the
       directory list is omitted, this option has no effect.
  
! `--with-newlib'
!      Specifies that `newlib' is being used as the target C library.
!      This causes `__eprintf' to be omitted from `libgcc.a' on the
!      assumption that it will be provided by `newlib'.
  
! `--with-avrlibc'
!      Specifies that `AVR-Libc' is being used as the target C library.
!      This causes float support functions like `__addsf3' to be omitted
!      from `libgcc.a' on the assumption that it will be provided by
!      `libm.a'.  For more technical details, cf. PR54461.  This option
       is only supported for the AVR target.  It is not supported for
       RTEMS configurations, which currently use newlib.  The option is
       supported since version 4.7.2 and is the default in 4.8.0 and
       newer.
  
! `--with-nds32-lib=LIBRARY'
!      Specifies that LIBRARY setting is used for building `libgcc.a'.
!      Currently, the valid LIBRARY is `newlib' or `mculib'.  This option
       is only supported for the NDS32 target.
  
! `--with-build-time-tools=DIR'
!      Specifies where to find the set of target tools (assembler,
!      linker, etc.)  that will be used while building GCC itself.  This
!      option can be useful if the directory layouts are different
!      between the system you are building GCC on, and the system where
!      you will deploy it.
  
!      For example, on an `ia64-hp-hpux' system, you may have the GNU
!      assembler and linker in `/usr/bin', and the native tools in a
       different path, and build a toolchain that expects to find the
!      native tools in `/usr/bin'.
  
!      When you use this option, you should ensure that DIR includes
!      `ar', `as', `ld', `nm', `ranlib' and `strip' if necessary, and
!      possibly `objdump'.  Otherwise, GCC may use an inconsistent set of
!      tools.
  
! Overriding `configure' test results
  ...................................
  
  Sometimes, it might be necessary to override the result of some
! `configure' test, for example in order to ease porting to a new system
! or work around a bug in a test.  The toplevel `configure' script
  provides three variables for this:
  
! `build_configargs'
!      The contents of this variable is passed to all build `configure'
       scripts.
  
! `host_configargs'
!      The contents of this variable is passed to all host `configure'
       scripts.
  
! `target_configargs'
!      The contents of this variable is passed to all target `configure'
       scripts.
  
! 
!    In order to avoid shell and `make' quoting issues for complex
! overrides, you can pass a setting for `CONFIG_SITE' and set variables
! in the site file.
  
  Java-Specific Options
  ---------------------
  
  The following option applies to the build of the Java front end.
  
! `--disable-libgcj'
       Specify that the run-time libraries used by GCJ should not be
       built.  This is useful in case you intend to use GCJ with some
       other run-time, or you're going to install it separately, or it
       just happens not to build on your particular machine.  In general,
!      if the Java front end is enabled, the GCJ libraries will be
!      enabled too, unless they're known to not work on the target
!      platform.  If GCJ is enabled but `libgcj' isn't built, you may
!      need to port it; in this case, before modifying the top-level
!      `configure.ac' so that `libgcj' is enabled by default on this
!      platform, you may use `--enable-libgcj' to override the default.
! 
  
!    The following options apply to building `libgcj'.
  
  General Options
  ...............
  
! `--enable-java-maintainer-mode'
!      By default the `libjava' build will not attempt to compile the
!      `.java' source files to `.class'.  Instead, it will use the
!      `.class' files from the source tree.  If you use this option you
!      must have executables named `ecj1' and `gjavah' in your path for
!      use by the build.  You must use this option if you intend to
!      modify any `.java' files in `libjava'.
  
! `--with-java-home=DIRNAME'
!      This `libjava' option overrides the default value of the
!      `java.home' system property.  It is also used to set
!      `sun.boot.class.path' to `DIRNAME/lib/rt.jar'.  By default
!      `java.home' is set to `PREFIX' and `sun.boot.class.path' to
!      `DATADIR/java/libgcj-VERSION.jar'.
  
! `--with-ecj-jar=FILENAME'
       This option can be used to specify the location of an external jar
       file containing the Eclipse Java compiler.  A specially modified
!      version of this compiler is used by `gcj' to parse `.java' source
!      files.  If this option is given, the `libjava' build will create
!      and install an `ecj1' executable which uses this jar file at
       runtime.
  
!      If this option is not given, but an `ecj.jar' file is found in the
!      topmost source tree at configure time, then the `libgcj' build
!      will create and install `ecj1', and will also install the
!      discovered `ecj.jar' into a suitable place in the install tree.
  
!      If `ecj1' is not installed, then the user will have to supply one
!      on his path in order for `gcj' to properly parse `.java' source
       files.  A suitable jar is available from
!      `ftp://sourceware.org/pub/java/'.
  
! `--disable-getenv-properties'
!      Don't set system properties from `GCJ_PROPERTIES'.
  
! `--enable-hash-synchronization'
!      Use a global hash table for monitor locks.  Ordinarily, `libgcj''s
!      `configure' script automatically makes the correct choice for this
       option for your platform.  Only use this if you know you need the
       library to be configured differently.
  
! `--enable-interpreter'
       Enable the Java interpreter.  The interpreter is automatically
       enabled by default on all platforms that support it.  This option
!      is really only useful if you want to disable the interpreter
!      (using `--disable-interpreter').
  
! `--disable-java-net'
       Disable java.net.  This disables the native part of java.net only,
       using non-functional stubs for native method implementations.
  
! `--disable-jvmpi'
       Disable JVMPI support.
  
! `--disable-libgcj-bc'
       Disable BC ABI compilation of certain parts of libgcj.  By default,
!      some portions of libgcj are compiled with `-findirect-dispatch'
!      and `-fno-indirect-classes', allowing them to be overridden at
       run-time.
  
!      If `--disable-libgcj-bc' is specified, libgcj is built without
       these options.  This allows the compile-time linker to resolve
       dependencies when statically linking to libgcj.  However it makes
       it impossible to override the affected portions of libgcj at
       run-time.
  
! `--enable-reduced-reflection'
!      Build most of libgcj with `-freduced-reflection'.  This reduces
!      the size of libgcj at the expense of not being able to do accurate
       reflection on the classes it contains.  This option is safe if you
       know that code using libgcj will never use reflection on the
       standard runtime classes in libgcj (including using serialization,
       RMI or CORBA).
  
! `--with-ecos'
       Enable runtime eCos target support.
  
! `--without-libffi'
!      Don't use `libffi'.  This will disable the interpreter and JNI
!      support as well, as these require `libffi' to work.
  
! `--enable-libgcj-debug'
       Enable runtime debugging code.
  
! `--enable-libgcj-multifile'
!      If specified, causes all `.java' source files to be compiled into
!      `.class' files in one invocation of `gcj'.  This can speed up
!      build time, but is more resource-intensive.  If this option is
!      unspecified or disabled, `gcj' is invoked once for each `.java'
!      file to compile into a `.class' file.
  
! `--with-libiconv-prefix=DIR'
!      Search for libiconv in `DIR/include' and `DIR/lib'.
  
! `--with-system-zlib'
!      Use installed `zlib' rather than that included with GCC.
  
! `--with-win32-nlsapi=ansi, unicows or unicode'
!      Indicates how MinGW `libgcj' translates between UNICODE characters
       and the Win32 API.
  
! `--enable-java-home'
       If enabled, this creates a JPackage compatible SDK environment
       during install.  Note that if -enable-java-home is used,
       -with-arch-directory=ARCH must also be specified.
  
! `--with-arch-directory=ARCH'
!      Specifies the name to use for the `jre/lib/ARCH' directory in the
!      SDK environment created when -enable-java-home is passed. Typical
       names for this directory include i386, amd64, ia64, etc.
  
! `--with-os-directory=DIR'
!      Specifies the OS directory for the SDK include directory. This is
       set to auto detect, and is typically 'linux'.
  
! `--with-origin-name=NAME'
!      Specifies the JPackage origin name. This defaults to the 'gcj' in
       java-1.5.0-gcj.
  
! `--with-arch-suffix=SUFFIX'
!      Specifies the suffix for the sdk directory. Defaults to the empty
       string.  Examples include '.x86_64' in
       'java-1.5.0-gcj-1.5.0.0.x86_64'.
  
! `--with-jvm-root-dir=DIR'
       Specifies where to install the SDK. Default is $(prefix)/lib/jvm.
  
! `--with-jvm-jar-dir=DIR'
!      Specifies where to install jars. Default is
       $(prefix)/lib/jvm-exports.
  
! `--with-python-dir=DIR'
!      Specifies where to install the Python modules used for
!      aot-compile. DIR should not include the prefix used in
!      installation. For example, if the Python modules are to be
!      installed in /usr/lib/python2.5/site-packages, then
!      -with-python-dir=/lib/python2.5/site-packages should be passed. If
       this is not specified, then the Python modules are installed in
       $(prefix)/share/python.
  
! `--enable-aot-compile-rpm'
       Adds aot-compile-rpm to the list of installed scripts.
  
! `--enable-browser-plugin'
       Build the gcjwebplugin web browser plugin.
  
! `--enable-static-libjava'
!      Build static libraries in libjava. The default is to only build
       shared libraries.
  
!     `ansi'
!           Use the single-byte `char' and the Win32 A functions natively,
            translating to and from UNICODE when using these functions.
            If unspecified, this is the default.
  
!     `unicows'
!           Use the `WCHAR' and Win32 W functions natively.  Adds
!           `-lunicows' to `libgcj.spec' to link with `libunicows'.
!           `unicows.dll' needs to be deployed on Microsoft Windows 9X
!           machines running built executables.  `libunicows.a', an
!           open-source import library around Microsoft's `unicows.dll',
!           is obtained from `http://libunicows.sourceforge.net/', which
!           also gives details on getting `unicows.dll' from Microsoft.
  
!     `unicode'
!           Use the `WCHAR' and Win32 W functions natively.  Does _not_
!           add `-lunicows' to `libgcj.spec'.  The built executables will
            only run on Microsoft Windows NT and above.
  
  AWT-Specific Options
  ....................
  
! `--with-x'
       Use the X Window System.
  
! `--enable-java-awt=PEER(S)'
       Specifies the AWT peer library or libraries to build alongside
!      `libgcj'.  If this option is unspecified or disabled, AWT will be
!      non-functional.  Current valid values are `gtk' and `xlib'.
       Multiple libraries should be separated by a comma (i.e.
!      `--enable-java-awt=gtk,xlib').
  
! `--enable-gtk-cairo'
       Build the cairo Graphics2D implementation on GTK.
  
! `--enable-java-gc=TYPE'
!      Choose garbage collector.  Defaults to `boehm' if unspecified.
  
! `--disable-gtktest'
       Do not try to compile and run a test GTK+ program.
  
! `--disable-glibtest'
       Do not try to compile and run a test GLIB program.
  
! `--with-libart-prefix=PFX'
       Prefix where libart is installed (optional).
  
! `--with-libart-exec-prefix=PFX'
       Exec prefix where libart is installed (optional).
  
! `--disable-libarttest'
       Do not try to compile and run a test libart program.
  
- 
  
  File: gccinstall.info,  Node: Building,  Next: Testing,  Prev: Configuration,  Up: Installing GCC
  
  5 Building
  **********
  
!    Now that GCC is configured, you are ready to build the compiler and
  runtime libraries.
  
     Some commands executed when making the compiler may fail (return a
! nonzero status) and be ignored by `make'.  These failures, which are
  often due to files that were not found, are expected, and can safely be
  ignored.
  
--- 1776,2144 ----
  
  The following options only apply to building cross compilers.
  
! '--with-sysroot'
! '--with-sysroot=DIR'
       Tells GCC to consider DIR as the root of a tree that contains (a
       subset of) the root filesystem of the target operating system.
       Target system headers, libraries and run-time object files will be
       searched for in there.  More specifically, this acts as if
!      '--sysroot=DIR' was added to the default options of the built
       compiler.  The specified directory is not copied into the install
!      tree, unlike the options '--with-headers' and '--with-libs' that
!      this option obsoletes.  The default value, in case '--with-sysroot'
!      is not given an argument, is '${gcc_tooldir}/sys-root'.  If the
!      specified directory is a subdirectory of '${exec_prefix}', then it
!      will be found relative to the GCC binaries if the installation tree
!      is moved.
  
       This option affects the system root for the compiler used to build
       target libraries (which runs on the build system) and the compiler
!      newly installed with 'make install'; it does not affect the
       compiler which is used to build GCC itself.
  
!      If you specify the '--with-native-system-header-dir=DIRNAME' option
!      then the compiler will search that directory within DIRNAME for
!      native system headers rather than the default '/usr/include'.
  
! '--with-build-sysroot'
! '--with-build-sysroot=DIR'
!      Tells GCC to consider DIR as the system root (see '--with-sysroot')
!      while building target libraries, instead of the directory specified
!      with '--with-sysroot'.  This option is only useful when you are
!      already using '--with-sysroot'.  You can use '--with-build-sysroot'
!      when you are configuring with '--prefix' set to a directory that is
!      different from the one in which you are installing GCC and your
!      target libraries.
  
       This option affects the system root for the compiler used to build
       target libraries (which runs on the build system); it does not
       affect the compiler which is used to build GCC itself.
  
!      If you specify the '--with-native-system-header-dir=DIRNAME' option
!      then the compiler will search that directory within DIRNAME for
!      native system headers rather than the default '/usr/include'.
  
! '--with-headers'
! '--with-headers=DIR'
!      Deprecated in favor of '--with-sysroot'.  Specifies that target
       headers are available when building a cross compiler.  The DIR
       argument specifies a directory which has the target include files.
!      These include files will be copied into the 'gcc' install
       directory.  _This option with the DIR argument is required_ when
!      building a cross compiler, if 'PREFIX/TARGET/sys-include' doesn't
!      pre-exist.  If 'PREFIX/TARGET/sys-include' does pre-exist, the DIR
!      argument may be omitted.  'fixincludes' will be run on these files
       to make them compatible with GCC.
  
! '--without-headers'
       Tells GCC not use any target headers from a libc when building a
       cross compiler.  When crossing to GNU/Linux, you need the headers
       so GCC can build the exception handling for libgcc.
  
! '--with-libs'
! '--with-libs="DIR1 DIR2 ... DIRN"'
!      Deprecated in favor of '--with-sysroot'.  Specifies a list of
       directories which contain the target runtime libraries.  These
!      libraries will be copied into the 'gcc' install directory.  If the
       directory list is omitted, this option has no effect.
  
! '--with-newlib'
!      Specifies that 'newlib' is being used as the target C library.
!      This causes '__eprintf' to be omitted from 'libgcc.a' on the
!      assumption that it will be provided by 'newlib'.
  
! '--with-avrlibc'
!      Specifies that 'AVR-Libc' is being used as the target C library.
!      This causes float support functions like '__addsf3' to be omitted
!      from 'libgcc.a' on the assumption that it will be provided by
!      'libm.a'.  For more technical details, cf.  PR54461.  This option
       is only supported for the AVR target.  It is not supported for
       RTEMS configurations, which currently use newlib.  The option is
       supported since version 4.7.2 and is the default in 4.8.0 and
       newer.
  
! '--with-nds32-lib=LIBRARY'
!      Specifies that LIBRARY setting is used for building 'libgcc.a'.
!      Currently, the valid LIBRARY is 'newlib' or 'mculib'.  This option
       is only supported for the NDS32 target.
  
! '--with-build-time-tools=DIR'
!      Specifies where to find the set of target tools (assembler, linker,
!      etc.)  that will be used while building GCC itself.  This option
!      can be useful if the directory layouts are different between the
!      system you are building GCC on, and the system where you will
!      deploy it.
  
!      For example, on an 'ia64-hp-hpux' system, you may have the GNU
!      assembler and linker in '/usr/bin', and the native tools in a
       different path, and build a toolchain that expects to find the
!      native tools in '/usr/bin'.
  
!      When you use this option, you should ensure that DIR includes 'ar',
!      'as', 'ld', 'nm', 'ranlib' and 'strip' if necessary, and possibly
!      'objdump'.  Otherwise, GCC may use an inconsistent set of tools.
  
! Overriding 'configure' test results
  ...................................
  
  Sometimes, it might be necessary to override the result of some
! 'configure' test, for example in order to ease porting to a new system
! or work around a bug in a test.  The toplevel 'configure' script
  provides three variables for this:
  
! 'build_configargs'
!      The contents of this variable is passed to all build 'configure'
       scripts.
  
! 'host_configargs'
!      The contents of this variable is passed to all host 'configure'
       scripts.
  
! 'target_configargs'
!      The contents of this variable is passed to all target 'configure'
       scripts.
  
!    In order to avoid shell and 'make' quoting issues for complex
! overrides, you can pass a setting for 'CONFIG_SITE' and set variables in
! the site file.
  
  Java-Specific Options
  ---------------------
  
  The following option applies to the build of the Java front end.
  
! '--disable-libgcj'
       Specify that the run-time libraries used by GCJ should not be
       built.  This is useful in case you intend to use GCJ with some
       other run-time, or you're going to install it separately, or it
       just happens not to build on your particular machine.  In general,
!      if the Java front end is enabled, the GCJ libraries will be enabled
!      too, unless they're known to not work on the target platform.  If
!      GCJ is enabled but 'libgcj' isn't built, you may need to port it;
!      in this case, before modifying the top-level 'configure.ac' so that
!      'libgcj' is enabled by default on this platform, you may use
!      '--enable-libgcj' to override the default.
  
!    The following options apply to building 'libgcj'.
  
  General Options
  ...............
  
! '--enable-java-maintainer-mode'
!      By default the 'libjava' build will not attempt to compile the
!      '.java' source files to '.class'.  Instead, it will use the
!      '.class' files from the source tree.  If you use this option you
!      must have executables named 'ecj1' and 'gjavah' in your path for
!      use by the build.  You must use this option if you intend to modify
!      any '.java' files in 'libjava'.
  
! '--with-java-home=DIRNAME'
!      This 'libjava' option overrides the default value of the
!      'java.home' system property.  It is also used to set
!      'sun.boot.class.path' to 'DIRNAME/lib/rt.jar'.  By default
!      'java.home' is set to 'PREFIX' and 'sun.boot.class.path' to
!      'DATADIR/java/libgcj-VERSION.jar'.
  
! '--with-ecj-jar=FILENAME'
       This option can be used to specify the location of an external jar
       file containing the Eclipse Java compiler.  A specially modified
!      version of this compiler is used by 'gcj' to parse '.java' source
!      files.  If this option is given, the 'libjava' build will create
!      and install an 'ecj1' executable which uses this jar file at
       runtime.
  
!      If this option is not given, but an 'ecj.jar' file is found in the
!      topmost source tree at configure time, then the 'libgcj' build will
!      create and install 'ecj1', and will also install the discovered
!      'ecj.jar' into a suitable place in the install tree.
  
!      If 'ecj1' is not installed, then the user will have to supply one
!      on his path in order for 'gcj' to properly parse '.java' source
       files.  A suitable jar is available from
!      <ftp://sourceware.org/pub/java/>.
  
! '--disable-getenv-properties'
!      Don't set system properties from 'GCJ_PROPERTIES'.
  
! '--enable-hash-synchronization'
!      Use a global hash table for monitor locks.  Ordinarily, 'libgcj''s
!      'configure' script automatically makes the correct choice for this
       option for your platform.  Only use this if you know you need the
       library to be configured differently.
  
! '--enable-interpreter'
       Enable the Java interpreter.  The interpreter is automatically
       enabled by default on all platforms that support it.  This option
!      is really only useful if you want to disable the interpreter (using
!      '--disable-interpreter').
  
! '--disable-java-net'
       Disable java.net.  This disables the native part of java.net only,
       using non-functional stubs for native method implementations.
  
! '--disable-jvmpi'
       Disable JVMPI support.
  
! '--disable-libgcj-bc'
       Disable BC ABI compilation of certain parts of libgcj.  By default,
!      some portions of libgcj are compiled with '-findirect-dispatch' and
!      '-fno-indirect-classes', allowing them to be overridden at
       run-time.
  
!      If '--disable-libgcj-bc' is specified, libgcj is built without
       these options.  This allows the compile-time linker to resolve
       dependencies when statically linking to libgcj.  However it makes
       it impossible to override the affected portions of libgcj at
       run-time.
  
! '--enable-reduced-reflection'
!      Build most of libgcj with '-freduced-reflection'.  This reduces the
!      size of libgcj at the expense of not being able to do accurate
       reflection on the classes it contains.  This option is safe if you
       know that code using libgcj will never use reflection on the
       standard runtime classes in libgcj (including using serialization,
       RMI or CORBA).
  
! '--with-ecos'
       Enable runtime eCos target support.
  
! '--without-libffi'
!      Don't use 'libffi'.  This will disable the interpreter and JNI
!      support as well, as these require 'libffi' to work.
  
! '--enable-libgcj-debug'
       Enable runtime debugging code.
  
! '--enable-libgcj-multifile'
!      If specified, causes all '.java' source files to be compiled into
!      '.class' files in one invocation of 'gcj'.  This can speed up build
!      time, but is more resource-intensive.  If this option is
!      unspecified or disabled, 'gcj' is invoked once for each '.java'
!      file to compile into a '.class' file.
  
! '--with-libiconv-prefix=DIR'
!      Search for libiconv in 'DIR/include' and 'DIR/lib'.
  
! '--with-system-zlib'
!      Use installed 'zlib' rather than that included with GCC.
  
! '--with-win32-nlsapi=ansi, unicows or unicode'
!      Indicates how MinGW 'libgcj' translates between UNICODE characters
       and the Win32 API.
  
! '--enable-java-home'
       If enabled, this creates a JPackage compatible SDK environment
       during install.  Note that if -enable-java-home is used,
       -with-arch-directory=ARCH must also be specified.
  
! '--with-arch-directory=ARCH'
!      Specifies the name to use for the 'jre/lib/ARCH' directory in the
!      SDK environment created when -enable-java-home is passed.  Typical
       names for this directory include i386, amd64, ia64, etc.
  
! '--with-os-directory=DIR'
!      Specifies the OS directory for the SDK include directory.  This is
       set to auto detect, and is typically 'linux'.
  
! '--with-origin-name=NAME'
!      Specifies the JPackage origin name.  This defaults to the 'gcj' in
       java-1.5.0-gcj.
  
! '--with-arch-suffix=SUFFIX'
!      Specifies the suffix for the sdk directory.  Defaults to the empty
       string.  Examples include '.x86_64' in
       'java-1.5.0-gcj-1.5.0.0.x86_64'.
  
! '--with-jvm-root-dir=DIR'
       Specifies where to install the SDK. Default is $(prefix)/lib/jvm.
  
! '--with-jvm-jar-dir=DIR'
!      Specifies where to install jars.  Default is
       $(prefix)/lib/jvm-exports.
  
! '--with-python-dir=DIR'
!      Specifies where to install the Python modules used for aot-compile.
!      DIR should not include the prefix used in installation.  For
!      example, if the Python modules are to be installed in
!      /usr/lib/python2.5/site-packages, then
!      -with-python-dir=/lib/python2.5/site-packages should be passed.  If
       this is not specified, then the Python modules are installed in
       $(prefix)/share/python.
  
! '--enable-aot-compile-rpm'
       Adds aot-compile-rpm to the list of installed scripts.
  
! '--enable-browser-plugin'
       Build the gcjwebplugin web browser plugin.
  
! '--enable-static-libjava'
!      Build static libraries in libjava.  The default is to only build
       shared libraries.
  
!      'ansi'
!           Use the single-byte 'char' and the Win32 A functions natively,
            translating to and from UNICODE when using these functions.
            If unspecified, this is the default.
  
!      'unicows'
!           Use the 'WCHAR' and Win32 W functions natively.  Adds
!           '-lunicows' to 'libgcj.spec' to link with 'libunicows'.
!           'unicows.dll' needs to be deployed on Microsoft Windows 9X
!           machines running built executables.  'libunicows.a', an
!           open-source import library around Microsoft's 'unicows.dll',
!           is obtained from <http://libunicows.sourceforge.net/>, which
!           also gives details on getting 'unicows.dll' from Microsoft.
  
!      'unicode'
!           Use the 'WCHAR' and Win32 W functions natively.  Does _not_
!           add '-lunicows' to 'libgcj.spec'.  The built executables will
            only run on Microsoft Windows NT and above.
  
  AWT-Specific Options
  ....................
  
! '--with-x'
       Use the X Window System.
  
! '--enable-java-awt=PEER(S)'
       Specifies the AWT peer library or libraries to build alongside
!      'libgcj'.  If this option is unspecified or disabled, AWT will be
!      non-functional.  Current valid values are 'gtk' and 'xlib'.
       Multiple libraries should be separated by a comma (i.e.
!      '--enable-java-awt=gtk,xlib').
  
! '--enable-gtk-cairo'
       Build the cairo Graphics2D implementation on GTK.
  
! '--enable-java-gc=TYPE'
!      Choose garbage collector.  Defaults to 'boehm' if unspecified.
  
! '--disable-gtktest'
       Do not try to compile and run a test GTK+ program.
  
! '--disable-glibtest'
       Do not try to compile and run a test GLIB program.
  
! '--with-libart-prefix=PFX'
       Prefix where libart is installed (optional).
  
! '--with-libart-exec-prefix=PFX'
       Exec prefix where libart is installed (optional).
  
! '--disable-libarttest'
       Do not try to compile and run a test libart program.
  
  
  File: gccinstall.info,  Node: Building,  Next: Testing,  Prev: Configuration,  Up: Installing GCC
  
  5 Building
  **********
  
! Now that GCC is configured, you are ready to build the compiler and
  runtime libraries.
  
     Some commands executed when making the compiler may fail (return a
! nonzero status) and be ignored by 'make'.  These failures, which are
  often due to files that were not found, are expected, and can safely be
  ignored.
  
*************** ignored.
*** 2173,2182 ****
  Unless you are a GCC developer, you can generally ignore these warnings
  unless they cause compilation to fail.  Developers should attempt to fix
  any warnings encountered, however they can temporarily continue past
! warnings-as-errors by specifying the configure flag `--disable-werror'.
  
     On certain old systems, defining certain environment variables such
! as `CC' can interfere with the functioning of `make'.
  
     If you encounter seemingly strange errors when trying to build the
  compiler in a directory other than the source directory, it could be
--- 2146,2155 ----
  Unless you are a GCC developer, you can generally ignore these warnings
  unless they cause compilation to fail.  Developers should attempt to fix
  any warnings encountered, however they can temporarily continue past
! warnings-as-errors by specifying the configure flag '--disable-werror'.
  
     On certain old systems, defining certain environment variables such
! as 'CC' can interfere with the functioning of 'make'.
  
     If you encounter seemingly strange errors when trying to build the
  compiler in a directory other than the source directory, it could be
*************** because you have previously configured t
*** 2184,2203 ****
  directory.  Make sure you have done all the necessary preparations.
  
     If you build GCC on a BSD system using a directory stored in an old
! System V file system, problems may occur in running `fixincludes' if the
  System V file system doesn't support symbolic links.  These problems
! result in a failure to fix the declaration of `size_t' in
! `sys/types.h'.  If you find that `size_t' is a signed type and that
! type mismatches occur, this could be the cause.
  
     The solution is not to use such a directory for building GCC.
  
     Similarly, when building from SVN or snapshots, or if you modify
! `*.l' files, you need the Flex lexical analyzer generator installed.
! If you do not modify `*.l' files, releases contain the Flex-generated
! files and you do not need Flex installed to build them.  There is still
! one Flex-based lexical analyzer (part of the build machinery, not of
! GCC itself) that is used even if you only build the C front end.
  
     When building from SVN or snapshots, or if you modify Texinfo
  documentation, you need version 4.7 or later of Texinfo installed if you
--- 2157,2176 ----
  directory.  Make sure you have done all the necessary preparations.
  
     If you build GCC on a BSD system using a directory stored in an old
! System V file system, problems may occur in running 'fixincludes' if the
  System V file system doesn't support symbolic links.  These problems
! result in a failure to fix the declaration of 'size_t' in 'sys/types.h'.
! If you find that 'size_t' is a signed type and that type mismatches
! occur, this could be the cause.
  
     The solution is not to use such a directory for building GCC.
  
     Similarly, when building from SVN or snapshots, or if you modify
! '*.l' files, you need the Flex lexical analyzer generator installed.  If
! you do not modify '*.l' files, releases contain the Flex-generated files
! and you do not need Flex installed to build them.  There is still one
! Flex-based lexical analyzer (part of the build machinery, not of GCC
! itself) that is used even if you only build the C front end.
  
     When building from SVN or snapshots, or if you modify Texinfo
  documentation, you need version 4.7 or later of Texinfo installed if you
*************** documentation pre-built for the unmodifi
*** 2208,2217 ****
  ==============================
  
  For a native build, the default configuration is to perform a 3-stage
! bootstrap of the compiler when `make' is invoked.  This will build the
  entire GCC system and ensure that it compiles itself correctly.  It can
! be disabled with the `--disable-bootstrap' parameter to `configure',
! but bootstrapping is suggested because the compiler will be tested more
  completely and could also have better performance.
  
     The bootstrapping process will complete the following steps:
--- 2181,2190 ----
  ==============================
  
  For a native build, the default configuration is to perform a 3-stage
! bootstrap of the compiler when 'make' is invoked.  This will build the
  entire GCC system and ensure that it compiles itself correctly.  It can
! be disabled with the '--disable-bootstrap' parameter to 'configure', but
! bootstrapping is suggested because the compiler will be tested more
  completely and could also have better performance.
  
     The bootstrapping process will complete the following steps:
*************** completely and could also have better pe
*** 2226,2244 ****
  
     * Perform a comparison test of the stage2 and stage3 compilers.
  
!    * Build runtime libraries using the stage3 compiler from the
!      previous step.
! 
  
!    If you are short on disk space you might consider `make
  bootstrap-lean' instead.  The sequence of compilation is the same
  described above, but object files from the stage1 and stage2 of the
  3-stage bootstrap of the compiler are deleted as soon as they are no
  longer needed.
  
     If you wish to use non-default GCC flags when compiling the stage2
! and stage3 compilers, set `BOOT_CFLAGS' on the command line when doing
! `make'.  For example, if you want to save additional space during the
  bootstrap and in the final installation as well, you can build the
  compiler binaries without debugging information as in the following
  example.  This will save roughly 40% of disk space both for the
--- 2199,2216 ----
  
     * Perform a comparison test of the stage2 and stage3 compilers.
  
!    * Build runtime libraries using the stage3 compiler from the previous
!      step.
  
!    If you are short on disk space you might consider 'make
  bootstrap-lean' instead.  The sequence of compilation is the same
  described above, but object files from the stage1 and stage2 of the
  3-stage bootstrap of the compiler are deleted as soon as they are no
  longer needed.
  
     If you wish to use non-default GCC flags when compiling the stage2
! and stage3 compilers, set 'BOOT_CFLAGS' on the command line when doing
! 'make'.  For example, if you want to save additional space during the
  bootstrap and in the final installation as well, you can build the
  compiler binaries without debugging information as in the following
  example.  This will save roughly 40% of disk space both for the
*************** debugging information.)
*** 2247,2377 ****
  
       make BOOT_CFLAGS='-O' bootstrap
  
!    You can place non-default optimization flags into `BOOT_CFLAGS'; they
! are less well tested here than the default of `-g -O2', but should
! still work.  In a few cases, you may find that you need to specify
! special flags such as `-msoft-float' here to complete the bootstrap; or,
! if the native compiler miscompiles the stage1 compiler, you may need to
! work around this, by choosing `BOOT_CFLAGS' to avoid the parts of the
! stage1 compiler that were miscompiled, or by using `make bootstrap4' to
  increase the number of stages of bootstrap.
  
!    `BOOT_CFLAGS' does not apply to bootstrapped target libraries.
! Since these are always compiled with the compiler currently being
! bootstrapped, you can use `CFLAGS_FOR_TARGET' to modify their
  compilation flags, as for non-bootstrapped target libraries.  Again, if
  the native compiler miscompiles the stage1 compiler, you may need to
  work around this by avoiding non-working parts of the stage1 compiler.
! Use `STAGE1_TFLAGS' to this end.
  
!    If you used the flag `--enable-languages=...' to restrict the
! compilers to be built, only those you've actually enabled will be
! built.  This will of course only build those runtime libraries, for
! which the particular compiler has been built.  Please note, that
! re-defining `LANGUAGES' when calling `make' *does not* work anymore!
  
     If the comparison of stage2 and stage3 fails, this normally indicates
  that the stage2 compiler has compiled GCC incorrectly, and is therefore
  a potentially serious bug which you should investigate and report.  (On
  a few systems, meaningful comparison of object files is impossible; they
! always appear "different".  If you encounter this problem, you will
! need to disable comparison in the `Makefile'.)
  
     If you do not want to bootstrap your compiler, you can configure with
! `--disable-bootstrap'.  In particular cases, you may want to bootstrap
  your compiler even if the target system is not the same as the one you
  are building on: for example, you could build a
! `powerpc-unknown-linux-gnu' toolchain on a
! `powerpc64-unknown-linux-gnu' host.  In this case, pass
! `--enable-bootstrap' to the configure script.
  
!    `BUILD_CONFIG' can be used to bring in additional customization to
  the build.  It can be set to a whitespace-separated list of names.  For
! each such `NAME', top-level `config/`NAME'.mk' will be included by the
! top-level `Makefile', bringing in any settings it contains.  The
! default `BUILD_CONFIG' can be set using the configure option
! `--with-build-config=`NAME'...'.  Some examples of supported build
  configurations are:
  
! `bootstrap-O1'
!      Removes any `-O'-started option from `BOOT_CFLAGS', and adds `-O1'
!      to it.  `BUILD_CONFIG=bootstrap-O1' is equivalent to
!      `BOOT_CFLAGS='-g -O1''.
  
! `bootstrap-O3'
!      Analogous to `bootstrap-O1'.
  
! `bootstrap-lto'
       Enables Link-Time Optimization for host tools during bootstrapping.
!      `BUILD_CONFIG=bootstrap-lto' is equivalent to adding `-flto' to
!      `BOOT_CFLAGS'.  This option assumes that the host supports the
!      linker plugin (e.g. GNU ld version 2.21 or later or GNU gold
       version 2.21 or later).
  
! `bootstrap-lto-noplugin'
!      This option is similar to `bootstrap-lto', but is intended for
       hosts that do not support the linker plugin.  Without the linker
       plugin static libraries are not compiled with link-time
       optimizations.  Since the GCC middle end and back end are in
!      `libbackend.a' this means that only the front end is actually LTO
       optimized.
  
! `bootstrap-debug'
       Verifies that the compiler generates the same executable code,
!      whether or not it is asked to emit debug information.  To this
!      end, this option builds stage2 host programs without debug
!      information, and uses `contrib/compare-debug' to compare them with
!      the stripped stage3 object files.  If `BOOT_CFLAGS' is overridden
!      so as to not enable debug information, stage2 will have it, and
!      stage3 won't.  This option is enabled by default when GCC
!      bootstrapping is enabled, if `strip' can turn object files
!      compiled with and without debug info into identical object files.
!      In addition to better test coverage, this option makes default
!      bootstraps faster and leaner.
  
! `bootstrap-debug-big'
       Rather than comparing stripped object files, as in
!      `bootstrap-debug', this option saves internal compiler dumps
!      during stage2 and stage3 and compares them as well, which helps
!      catch additional potential problems, but at a great cost in terms
!      of disk space.  It can be specified in addition to
!      `bootstrap-debug'.
  
! `bootstrap-debug-lean'
!      This option saves disk space compared with `bootstrap-debug-big',
       but at the expense of some recompilation.  Instead of saving the
       dumps of stage2 and stage3 until the final compare, it uses
!      `-fcompare-debug' to generate, compare and remove the dumps during
       stage3, repeating the compilation that already took place in
       stage2, whose dumps were not saved.
  
! `bootstrap-debug-lib'
       This option tests executable code invariance over debug information
!      generation on target libraries, just like `bootstrap-debug-lean'
       tests it on host programs.  It builds stage3 libraries with
!      `-fcompare-debug', and it can be used along with any of the
!      `bootstrap-debug' options above.
  
!      There aren't `-lean' or `-big' counterparts to this option because
       most libraries are only build in stage3, so bootstrap compares
       would not get significant coverage.  Moreover, the few libraries
       built in stage2 are used in stage3 host programs, so we wouldn't
       want to compile stage2 libraries with different options for
       comparison purposes.
  
! `bootstrap-debug-ckovw'
       Arranges for error messages to be issued if the compiler built on
!      any stage is run without the option `-fcompare-debug'.  This is
!      useful to verify the full `-fcompare-debug' testing coverage.  It
!      must be used along with `bootstrap-debug-lean' and
!      `bootstrap-debug-lib'.
  
! `bootstrap-time'
       Arranges for the run time of each program started by the GCC
!      driver, built in any stage, to be logged to `time.log', in the top
       level of the build tree.
  
- 
  5.2 Building a cross compiler
  =============================
  
--- 2219,2345 ----
  
       make BOOT_CFLAGS='-O' bootstrap
  
!    You can place non-default optimization flags into 'BOOT_CFLAGS'; they
! are less well tested here than the default of '-g -O2', but should still
! work.  In a few cases, you may find that you need to specify special
! flags such as '-msoft-float' here to complete the bootstrap; or, if the
! native compiler miscompiles the stage1 compiler, you may need to work
! around this, by choosing 'BOOT_CFLAGS' to avoid the parts of the stage1
! compiler that were miscompiled, or by using 'make bootstrap4' to
  increase the number of stages of bootstrap.
  
!    'BOOT_CFLAGS' does not apply to bootstrapped target libraries.  Since
! these are always compiled with the compiler currently being
! bootstrapped, you can use 'CFLAGS_FOR_TARGET' to modify their
  compilation flags, as for non-bootstrapped target libraries.  Again, if
  the native compiler miscompiles the stage1 compiler, you may need to
  work around this by avoiding non-working parts of the stage1 compiler.
! Use 'STAGE1_TFLAGS' to this end.
  
!    If you used the flag '--enable-languages=...' to restrict the
! compilers to be built, only those you've actually enabled will be built.
! This will of course only build those runtime libraries, for which the
! particular compiler has been built.  Please note, that re-defining
! 'LANGUAGES' when calling 'make' *does not* work anymore!
  
     If the comparison of stage2 and stage3 fails, this normally indicates
  that the stage2 compiler has compiled GCC incorrectly, and is therefore
  a potentially serious bug which you should investigate and report.  (On
  a few systems, meaningful comparison of object files is impossible; they
! always appear "different".  If you encounter this problem, you will need
! to disable comparison in the 'Makefile'.)
  
     If you do not want to bootstrap your compiler, you can configure with
! '--disable-bootstrap'.  In particular cases, you may want to bootstrap
  your compiler even if the target system is not the same as the one you
  are building on: for example, you could build a
! 'powerpc-unknown-linux-gnu' toolchain on a 'powerpc64-unknown-linux-gnu'
! host.  In this case, pass '--enable-bootstrap' to the configure script.
  
!    'BUILD_CONFIG' can be used to bring in additional customization to
  the build.  It can be set to a whitespace-separated list of names.  For
! each such 'NAME', top-level 'config/NAME.mk' will be included by the
! top-level 'Makefile', bringing in any settings it contains.  The default
! 'BUILD_CONFIG' can be set using the configure option
! '--with-build-config=NAME...'.  Some examples of supported build
  configurations are:
  
! 'bootstrap-O1'
!      Removes any '-O'-started option from 'BOOT_CFLAGS', and adds '-O1'
!      to it.  'BUILD_CONFIG=bootstrap-O1' is equivalent to
!      'BOOT_CFLAGS='-g -O1''.
  
! 'bootstrap-O3'
!      Analogous to 'bootstrap-O1'.
  
! 'bootstrap-lto'
       Enables Link-Time Optimization for host tools during bootstrapping.
!      'BUILD_CONFIG=bootstrap-lto' is equivalent to adding '-flto' to
!      'BOOT_CFLAGS'.  This option assumes that the host supports the
!      linker plugin (e.g.  GNU ld version 2.21 or later or GNU gold
       version 2.21 or later).
  
! 'bootstrap-lto-noplugin'
!      This option is similar to 'bootstrap-lto', but is intended for
       hosts that do not support the linker plugin.  Without the linker
       plugin static libraries are not compiled with link-time
       optimizations.  Since the GCC middle end and back end are in
!      'libbackend.a' this means that only the front end is actually LTO
       optimized.
  
! 'bootstrap-debug'
       Verifies that the compiler generates the same executable code,
!      whether or not it is asked to emit debug information.  To this end,
!      this option builds stage2 host programs without debug information,
!      and uses 'contrib/compare-debug' to compare them with the stripped
!      stage3 object files.  If 'BOOT_CFLAGS' is overridden so as to not
!      enable debug information, stage2 will have it, and stage3 won't.
!      This option is enabled by default when GCC bootstrapping is
!      enabled, if 'strip' can turn object files compiled with and without
!      debug info into identical object files.  In addition to better test
!      coverage, this option makes default bootstraps faster and leaner.
  
! 'bootstrap-debug-big'
       Rather than comparing stripped object files, as in
!      'bootstrap-debug', this option saves internal compiler dumps during
!      stage2 and stage3 and compares them as well, which helps catch
!      additional potential problems, but at a great cost in terms of disk
!      space.  It can be specified in addition to 'bootstrap-debug'.
  
! 'bootstrap-debug-lean'
!      This option saves disk space compared with 'bootstrap-debug-big',
       but at the expense of some recompilation.  Instead of saving the
       dumps of stage2 and stage3 until the final compare, it uses
!      '-fcompare-debug' to generate, compare and remove the dumps during
       stage3, repeating the compilation that already took place in
       stage2, whose dumps were not saved.
  
! 'bootstrap-debug-lib'
       This option tests executable code invariance over debug information
!      generation on target libraries, just like 'bootstrap-debug-lean'
       tests it on host programs.  It builds stage3 libraries with
!      '-fcompare-debug', and it can be used along with any of the
!      'bootstrap-debug' options above.
  
!      There aren't '-lean' or '-big' counterparts to this option because
       most libraries are only build in stage3, so bootstrap compares
       would not get significant coverage.  Moreover, the few libraries
       built in stage2 are used in stage3 host programs, so we wouldn't
       want to compile stage2 libraries with different options for
       comparison purposes.
  
! 'bootstrap-debug-ckovw'
       Arranges for error messages to be issued if the compiler built on
!      any stage is run without the option '-fcompare-debug'.  This is
!      useful to verify the full '-fcompare-debug' testing coverage.  It
!      must be used along with 'bootstrap-debug-lean' and
!      'bootstrap-debug-lib'.
  
! 'bootstrap-time'
       Arranges for the run time of each program started by the GCC
!      driver, built in any stage, to be logged to 'time.log', in the top
       level of the build tree.
  
  5.2 Building a cross compiler
  =============================
  
*************** When building a cross compiler, it is no
*** 2379,2398 ****
  3-stage bootstrap of the compiler.  This makes for an interesting
  problem as parts of GCC can only be built with GCC.
  
!    To build a cross compiler, we recommend first building and
! installing a native compiler.  You can then use the native GCC compiler
! to build the cross compiler.  The installed native compiler needs to be
! GCC version 2.95 or later.
  
     If the cross compiler is to be built with support for the Java
  programming language and the ability to compile .java source files is
  desired, the installed native compiler used to build the cross compiler
! needs to be the same GCC version as the cross compiler.  In addition
! the cross compiler needs to be configured with `--with-ecj-jar=...'.
  
     Assuming you have already installed a native copy of GCC and
! configured your cross compiler, issue the command `make', which
! performs the following steps:
  
     * Build host tools necessary to build the compiler.
  
--- 2347,2366 ----
  3-stage bootstrap of the compiler.  This makes for an interesting
  problem as parts of GCC can only be built with GCC.
  
!    To build a cross compiler, we recommend first building and installing
! a native compiler.  You can then use the native GCC compiler to build
! the cross compiler.  The installed native compiler needs to be GCC
! version 2.95 or later.
  
     If the cross compiler is to be built with support for the Java
  programming language and the ability to compile .java source files is
  desired, the installed native compiler used to build the cross compiler
! needs to be the same GCC version as the cross compiler.  In addition the
! cross compiler needs to be configured with '--with-ecj-jar=...'.
  
     Assuming you have already installed a native copy of GCC and
! configured your cross compiler, issue the command 'make', which performs
! the following steps:
  
     * Build host tools necessary to build the compiler.
  
*************** performs the following steps:
*** 2409,2428 ****
  
     If you are not building GNU binutils in the same source tree as GCC,
  you will need a cross-assembler and cross-linker installed before
! configuring GCC.  Put them in the directory `PREFIX/TARGET/bin'.  Here
  is a table of the tools you should put in this directory:
  
! `as'
       This should be the cross-assembler.
  
! `ld'
       This should be the cross-linker.
  
! `ar'
       This should be the cross-archiver: a program which can manipulate
       archive files (linker libraries) in the target machine's format.
  
! `ranlib'
       This should be a program to construct a symbol table in an archive
       file.
  
--- 2377,2396 ----
  
     If you are not building GNU binutils in the same source tree as GCC,
  you will need a cross-assembler and cross-linker installed before
! configuring GCC.  Put them in the directory 'PREFIX/TARGET/bin'.  Here
  is a table of the tools you should put in this directory:
  
! 'as'
       This should be the cross-assembler.
  
! 'ld'
       This should be the cross-linker.
  
! 'ar'
       This should be the cross-archiver: a program which can manipulate
       archive files (linker libraries) in the target machine's format.
  
! 'ranlib'
       This should be a program to construct a symbol table in an archive
       file.
  
*************** and copy or link them to the proper plac
*** 2431,2502 ****
  find them when run later.
  
     The easiest way to provide these files is to build the Binutils
! package.  Configure it with the same `--host' and `--target' options
  that you use for configuring GCC, then build and install them.  They
  install their executables automatically into the proper directory.
  Alas, they do not support all the targets that GCC supports.
  
     If you are not building a C library in the same source tree as GCC,
  you should also provide the target libraries and headers before
! configuring GCC, specifying the directories with `--with-sysroot' or
! `--with-headers' and `--with-libs'.  Many targets also require "start
! files" such as `crt0.o' and `crtn.o' which are linked into each
! executable.  There may be several alternatives for `crt0.o', for use
  with profiling or other compilation options.  Check your target's
! definition of `STARTFILE_SPEC' to find out what start files it uses.
  
  5.3 Building in parallel
  ========================
  
  GNU Make 3.80 and above, which is necessary to build GCC, support
! building in parallel.  To activate this, you can use `make -j 2'
! instead of `make'.  You can also specify a bigger number, and in most
! cases using a value greater than the number of processors in your
! machine will result in fewer and shorter I/O latency hits, thus
! improving overall throughput; this is especially true for slow drives
! and network filesystems.
  
  5.4 Building the Ada compiler
  =============================
  
  In order to build GNAT, the Ada compiler, you need a working GNAT
  compiler (GCC version 4.0 or later).  This includes GNAT tools such as
! `gnatmake' and `gnatlink', since the Ada front end is written in Ada and
  uses some GNAT-specific extensions.
  
     In order to build a cross compiler, it is suggested to install the
  new compiler as native first, and then use it to build the cross
  compiler.
  
!    `configure' does not test whether the GNAT installation works and
! has a sufficiently recent version; if too old a GNAT version is
! installed, the build will fail unless `--enable-languages' is used to
! disable building the Ada front end.
  
!    `ADA_INCLUDE_PATH' and `ADA_OBJECT_PATH' environment variables must
  not be set when building the Ada compiler, the Ada tools, or the Ada
! runtime libraries. You can check that your build environment is clean
! by verifying that `gnatls -v' lists only one explicit path in each
  section.
  
  5.5 Building with profile feedback
  ==================================
  
  It is possible to use profile feedback to optimize the compiler itself.
! This should result in a faster compiler binary.  Experiments done on
! x86 using gcc 3.3 showed approximately 7 percent speedup on compiling C
! programs.  To bootstrap the compiler with profile feedback, use `make
  profiledbootstrap'.
  
!    When `make profiledbootstrap' is run, it will first build a `stage1'
! compiler.  This compiler is used to build a `stageprofile' compiler
  instrumented to collect execution counts of instruction and branch
  probabilities.  Then runtime libraries are compiled with profile
! collected.  Finally a `stagefeedback' compiler is built using the
  information collected.
  
     Unlike standard bootstrap, several additional restrictions apply.
! The compiler used to build `stage1' needs to support a 64-bit integral
  type.  It is recommended to only use GCC for this.
  
  
--- 2399,2470 ----
  find them when run later.
  
     The easiest way to provide these files is to build the Binutils
! package.  Configure it with the same '--host' and '--target' options
  that you use for configuring GCC, then build and install them.  They
  install their executables automatically into the proper directory.
  Alas, they do not support all the targets that GCC supports.
  
     If you are not building a C library in the same source tree as GCC,
  you should also provide the target libraries and headers before
! configuring GCC, specifying the directories with '--with-sysroot' or
! '--with-headers' and '--with-libs'.  Many targets also require "start
! files" such as 'crt0.o' and 'crtn.o' which are linked into each
! executable.  There may be several alternatives for 'crt0.o', for use
  with profiling or other compilation options.  Check your target's
! definition of 'STARTFILE_SPEC' to find out what start files it uses.
  
  5.3 Building in parallel
  ========================
  
  GNU Make 3.80 and above, which is necessary to build GCC, support
! building in parallel.  To activate this, you can use 'make -j 2' instead
! of 'make'.  You can also specify a bigger number, and in most cases
! using a value greater than the number of processors in your machine will
! result in fewer and shorter I/O latency hits, thus improving overall
! throughput; this is especially true for slow drives and network
! filesystems.
  
  5.4 Building the Ada compiler
  =============================
  
  In order to build GNAT, the Ada compiler, you need a working GNAT
  compiler (GCC version 4.0 or later).  This includes GNAT tools such as
! 'gnatmake' and 'gnatlink', since the Ada front end is written in Ada and
  uses some GNAT-specific extensions.
  
     In order to build a cross compiler, it is suggested to install the
  new compiler as native first, and then use it to build the cross
  compiler.
  
!    'configure' does not test whether the GNAT installation works and has
! a sufficiently recent version; if too old a GNAT version is installed,
! the build will fail unless '--enable-languages' is used to disable
! building the Ada front end.
  
!    'ADA_INCLUDE_PATH' and 'ADA_OBJECT_PATH' environment variables must
  not be set when building the Ada compiler, the Ada tools, or the Ada
! runtime libraries.  You can check that your build environment is clean
! by verifying that 'gnatls -v' lists only one explicit path in each
  section.
  
  5.5 Building with profile feedback
  ==================================
  
  It is possible to use profile feedback to optimize the compiler itself.
! This should result in a faster compiler binary.  Experiments done on x86
! using gcc 3.3 showed approximately 7 percent speedup on compiling C
! programs.  To bootstrap the compiler with profile feedback, use 'make
  profiledbootstrap'.
  
!    When 'make profiledbootstrap' is run, it will first build a 'stage1'
! compiler.  This compiler is used to build a 'stageprofile' compiler
  instrumented to collect execution counts of instruction and branch
  probabilities.  Then runtime libraries are compiled with profile
! collected.  Finally a 'stagefeedback' compiler is built using the
  information collected.
  
     Unlike standard bootstrap, several additional restrictions apply.
! The compiler used to build 'stage1' needs to support a 64-bit integral
  type.  It is recommended to only use GCC for this.
  
  
*************** File: gccinstall.info,  Node: Testing,
*** 2505,2518 ****
  6 Installing GCC: Testing
  *************************
  
!    Before you install GCC, we encourage you to run the testsuites and to
  compare your results with results from a similar configuration that have
  been submitted to the gcc-testresults mailing list.  Some of these
  archived results are linked from the build status lists at
! `http://gcc.gnu.org/buildstat.html', although not everyone who reports
! a successful build runs the testsuites and submits the results.  This
! step is optional and may require you to download additional software,
! but it can give you confidence in your new GCC installation or point out
  problems before you install and start using your new GCC.
  
     First, you must have downloaded the testsuites.  These are part of
--- 2473,2486 ----
  6 Installing GCC: Testing
  *************************
  
! Before you install GCC, we encourage you to run the testsuites and to
  compare your results with results from a similar configuration that have
  been submitted to the gcc-testresults mailing list.  Some of these
  archived results are linked from the build status lists at
! <http://gcc.gnu.org/buildstat.html>, although not everyone who reports a
! successful build runs the testsuites and submits the results.  This step
! is optional and may require you to download additional software, but it
! can give you confidence in your new GCC installation or point out
  problems before you install and start using your new GCC.
  
     First, you must have downloaded the testsuites.  These are part of
*************** any front ends, you must download the te
*** 2522,2531 ****
     Second, you must have the testing tools installed.  This includes
  DejaGnu, Tcl, and Expect; the DejaGnu site has links to these.
  
!    If the directories where `runtest' and `expect' were installed are
! not in the `PATH', you may need to set the following environment
! variables appropriately, as in the following example (which assumes
! that DejaGnu has been installed under `/usr/local'):
  
       TCL_LIBRARY = /usr/local/share/tcl8.0
       DEJAGNULIBS = /usr/local/share/dejagnu
--- 2490,2499 ----
     Second, you must have the testing tools installed.  This includes
  DejaGnu, Tcl, and Expect; the DejaGnu site has links to these.
  
!    If the directories where 'runtest' and 'expect' were installed are
! not in the 'PATH', you may need to set the following environment
! variables appropriately, as in the following example (which assumes that
! DejaGnu has been installed under '/usr/local'):
  
       TCL_LIBRARY = /usr/local/share/tcl8.0
       DEJAGNULIBS = /usr/local/share/dejagnu
*************** portability in the DejaGnu code.)
*** 2537,2592 ****
     Finally, you can run the testsuite (which may take a long time):
       cd OBJDIR; make -k check
  
!    This will test various components of GCC, such as compiler front
! ends and runtime libraries.  While running the testsuite, DejaGnu might
! emit some harmless messages resembling `WARNING: Couldn't find the
! global config file.' or `WARNING: Couldn't find tool init file' that
! can be ignored.
  
     If you are testing a cross-compiler, you may want to run the
  testsuite on a simulator as described at
! `http://gcc.gnu.org/simtest-howto.html'.
  
  6.1 How can you run the testsuite on selected tests?
  ====================================================
  
! In order to run sets of tests selectively, there are targets `make
! check-gcc' and language specific `make check-c', `make check-c++',
! `make check-fortran', `make check-java', `make check-ada', `make
! check-objc', `make check-obj-c++', `make check-lto' in the `gcc'
! subdirectory of the object directory.  You can also just run `make
! check' in a subdirectory of the object directory.
  
!    A more selective way to just run all `gcc' execute tests in the
  testsuite is to use
  
       make check-gcc RUNTESTFLAGS="execute.exp OTHER-OPTIONS"
  
!    Likewise, in order to run only the `g++' "old-deja" tests in the
! testsuite with filenames matching `9805*', you would use
  
       make check-g++ RUNTESTFLAGS="old-deja.exp=9805* OTHER-OPTIONS"
  
!    The `*.exp' files are located in the testsuite directories of the GCC
! source, the most important ones being `compile.exp', `execute.exp',
! `dg.exp' and `old-deja.exp'.  To get a list of the possible `*.exp'
! files, pipe the output of `make check' into a file and look at the
! `Running ...  .exp' lines.
  
  6.2 Passing options and running multiple testsuites
  ===================================================
  
  You can pass multiple options to the testsuite using the
! `--target_board' option of DejaGNU, either passed as part of
! `RUNTESTFLAGS', or directly to `runtest' if you prefer to work outside
  the makefiles.  For example,
  
       make check-g++ RUNTESTFLAGS="--target_board=unix/-O3/-fmerge-constants"
  
!    will run the standard `g++' testsuites ("unix" is the target name
! for a standard native testsuite situation), passing `-O3
! -fmerge-constants' to the compiler on every test, i.e., slashes
! separate options.
  
     You can run the testsuites multiple times using combinations of
  options with a syntax similar to the brace expansion of popular shells:
--- 2505,2559 ----
     Finally, you can run the testsuite (which may take a long time):
       cd OBJDIR; make -k check
  
!    This will test various components of GCC, such as compiler front ends
! and runtime libraries.  While running the testsuite, DejaGnu might emit
! some harmless messages resembling 'WARNING: Couldn't find the global
! config file.' or 'WARNING: Couldn't find tool init file' that can be
! ignored.
  
     If you are testing a cross-compiler, you may want to run the
  testsuite on a simulator as described at
! <http://gcc.gnu.org/simtest-howto.html>.
  
  6.1 How can you run the testsuite on selected tests?
  ====================================================
  
! In order to run sets of tests selectively, there are targets 'make
! check-gcc' and language specific 'make check-c', 'make check-c++', 'make
! check-fortran', 'make check-java', 'make check-ada', 'make check-objc',
! 'make check-obj-c++', 'make check-lto' in the 'gcc' subdirectory of the
! object directory.  You can also just run 'make check' in a subdirectory
! of the object directory.
  
!    A more selective way to just run all 'gcc' execute tests in the
  testsuite is to use
  
       make check-gcc RUNTESTFLAGS="execute.exp OTHER-OPTIONS"
  
!    Likewise, in order to run only the 'g++' "old-deja" tests in the
! testsuite with filenames matching '9805*', you would use
  
       make check-g++ RUNTESTFLAGS="old-deja.exp=9805* OTHER-OPTIONS"
  
!    The '*.exp' files are located in the testsuite directories of the GCC
! source, the most important ones being 'compile.exp', 'execute.exp',
! 'dg.exp' and 'old-deja.exp'.  To get a list of the possible '*.exp'
! files, pipe the output of 'make check' into a file and look at the
! 'Running ... .exp' lines.
  
  6.2 Passing options and running multiple testsuites
  ===================================================
  
  You can pass multiple options to the testsuite using the
! '--target_board' option of DejaGNU, either passed as part of
! 'RUNTESTFLAGS', or directly to 'runtest' if you prefer to work outside
  the makefiles.  For example,
  
       make check-g++ RUNTESTFLAGS="--target_board=unix/-O3/-fmerge-constants"
  
!    will run the standard 'g++' testsuites ("unix" is the target name for
! a standard native testsuite situation), passing '-O3 -fmerge-constants'
! to the compiler on every test, i.e., slashes separate options.
  
     You can run the testsuites multiple times using combinations of
  options with a syntax similar to the brace expansion of popular shells:
*************** options with a syntax similar to the bra
*** 2595,2601 ****
  
     (Note the empty option caused by the trailing comma in the final
  group.)  The following will run each testsuite eight times using the
! `arm-sim' target, as if you had specified all possible combinations
  yourself:
  
       --target_board='arm-sim/-mhard-float/-O1 \
--- 2562,2568 ----
  
     (Note the empty option caused by the trailing comma in the final
  group.)  The following will run each testsuite eight times using the
! 'arm-sim' target, as if you had specified all possible combinations
  yourself:
  
       --target_board='arm-sim/-mhard-float/-O1 \
*************** This list:
*** 2612,2624 ****
  
       ..."--target_board=unix/-Wextra\{-O3,-fno-strength\}\{-fomit-frame,\}"
  
!    will generate four combinations, all involving `-Wextra'.
  
     The disadvantage to this method is that the testsuites are run in
  serial, which is a waste on multiprocessor systems.  For users with GNU
  Make and a shell which performs brace expansion, you can run the
  testsuites in parallel by having the shell perform the combinations and
! `make' do the parallel runs.  Instead of using `--target_board', use a
  special makefile target:
  
       make -jN check-TESTSUITE//TEST-TARGET/OPTION1/OPTION2/...
--- 2579,2591 ----
  
       ..."--target_board=unix/-Wextra\{-O3,-fno-strength\}\{-fomit-frame,\}"
  
!    will generate four combinations, all involving '-Wextra'.
  
     The disadvantage to this method is that the testsuites are run in
  serial, which is a waste on multiprocessor systems.  For users with GNU
  Make and a shell which performs brace expansion, you can run the
  testsuites in parallel by having the shell perform the combinations and
! 'make' do the parallel runs.  Instead of using '--target_board', use a
  special makefile target:
  
       make -jN check-TESTSUITE//TEST-TARGET/OPTION1/OPTION2/...
*************** special makefile target:
*** 2629,2670 ****
  
     will run three concurrent "make-gcc" testsuites, eventually testing
  all ten combinations as described above.  Note that this is currently
! only supported in the `gcc' subdirectory.  (To see how this works, try
! typing `echo' before the example given here.)
  
  6.3 Additional testing for Java Class Libraries
  ===============================================
  
! The Java runtime tests can be executed via `make check' in the
! `TARGET/libjava/testsuite' directory in the build tree.
  
     The Mauve Project provides a suite of tests for the Java Class
  Libraries.  This suite can be run as part of libgcj testing by placing
  the Mauve tree within the libjava testsuite at
! `libjava/testsuite/libjava.mauve/mauve', or by specifying the location
! of that tree when invoking `make', as in `make MAUVEDIR=~/mauve check'.
  
  6.4 How to interpret test results
  =================================
  
! The result of running the testsuite are various `*.sum' and `*.log'
! files in the testsuite subdirectories.  The `*.log' files contain a
  detailed log of the compiler invocations and the corresponding results,
! the `*.sum' files summarize the results.  These summaries contain
! status codes for all tests:
  
     * PASS: the test passed as expected
- 
     * XPASS: the test unexpectedly passed
- 
     * FAIL: the test unexpectedly failed
- 
     * XFAIL: the test failed as expected
- 
     * UNSUPPORTED: the test is not supported on this platform
- 
     * ERROR: the testsuite detected an error
- 
     * WARNING: the testsuite detected a possible problem
  
     It is normal for some tests to report unexpected failures.  At the
--- 2596,2631 ----
  
     will run three concurrent "make-gcc" testsuites, eventually testing
  all ten combinations as described above.  Note that this is currently
! only supported in the 'gcc' subdirectory.  (To see how this works, try
! typing 'echo' before the example given here.)
  
  6.3 Additional testing for Java Class Libraries
  ===============================================
  
! The Java runtime tests can be executed via 'make check' in the
! 'TARGET/libjava/testsuite' directory in the build tree.
  
     The Mauve Project provides a suite of tests for the Java Class
  Libraries.  This suite can be run as part of libgcj testing by placing
  the Mauve tree within the libjava testsuite at
! 'libjava/testsuite/libjava.mauve/mauve', or by specifying the location
! of that tree when invoking 'make', as in 'make MAUVEDIR=~/mauve check'.
  
  6.4 How to interpret test results
  =================================
  
! The result of running the testsuite are various '*.sum' and '*.log'
! files in the testsuite subdirectories.  The '*.log' files contain a
  detailed log of the compiler invocations and the corresponding results,
! the '*.sum' files summarize the results.  These summaries contain status
! codes for all tests:
  
     * PASS: the test passed as expected
     * XPASS: the test unexpectedly passed
     * FAIL: the test unexpectedly failed
     * XFAIL: the test failed as expected
     * UNSUPPORTED: the test is not supported on this platform
     * ERROR: the testsuite detected an error
     * WARNING: the testsuite detected a possible problem
  
     It is normal for some tests to report unexpected failures.  At the
*************** fixed in future releases.
*** 2676,2690 ****
  ===========================
  
  If you want to report the results to the GCC project, use the
! `contrib/test_summary' shell script.  Start it in the OBJDIR with
  
       SRCDIR/contrib/test_summary -p your_commentary.txt \
           -m gcc-testresults@gcc.gnu.org |sh
  
!    This script uses the `Mail' program to send the results, so make
! sure it is in your `PATH'.  The file `your_commentary.txt' is prepended
! to the testsuite summary and should contain any special remarks you
! have on your results or your build environment.  Please do not edit the
  testsuite result block or the subject line, as these messages may be
  automatically processed.
  
--- 2637,2651 ----
  ===========================
  
  If you want to report the results to the GCC project, use the
! 'contrib/test_summary' shell script.  Start it in the OBJDIR with
  
       SRCDIR/contrib/test_summary -p your_commentary.txt \
           -m gcc-testresults@gcc.gnu.org |sh
  
!    This script uses the 'Mail' program to send the results, so make sure
! it is in your 'PATH'.  The file 'your_commentary.txt' is prepended to
! the testsuite summary and should contain any special remarks you have on
! your results or your build environment.  Please do not edit the
  testsuite result block or the subject line, as these messages may be
  automatically processed.
  
*************** File: gccinstall.info,  Node: Final inst
*** 2694,2701 ****
  7 Installing GCC: Final installation
  ************************************
  
!    Now that GCC has been built (and optionally tested), you can install
! it with
       cd OBJDIR && make install
  
     We strongly recommend to install into a target directory where there
--- 2655,2662 ----
  7 Installing GCC: Final installation
  ************************************
  
! Now that GCC has been built (and optionally tested), you can install it
! with
       cd OBJDIR && make install
  
     We strongly recommend to install into a target directory where there
*************** that depend on this debugging informatio
*** 2705,2742 ****
  instance).
  
     That step completes the installation of GCC; user level binaries can
! be found in `PREFIX/bin' where PREFIX is the value you specified with
! the `--prefix' to configure (or `/usr/local' by default).  (If you
! specified `--bindir', that directory will be used instead; otherwise,
! if you specified `--exec-prefix', `EXEC-PREFIX/bin' will be used.)
! Headers for the C++ and Java libraries are installed in
! `PREFIX/include'; libraries in `LIBDIR' (normally `PREFIX/lib');
! internal parts of the compiler in `LIBDIR/gcc' and `LIBEXECDIR/gcc';
! documentation in info format in `INFODIR' (normally `PREFIX/info').
  
     When installing cross-compilers, GCC's executables are not only
! installed into `BINDIR', that is, `EXEC-PREFIX/bin', but additionally
! into `EXEC-PREFIX/TARGET-ALIAS/bin', if that directory exists.
  Typically, such "tooldirs" hold target-specific binutils, including
  assembler and linker.
  
!    Installation into a temporary staging area or into a `chroot' jail
  can be achieved with the command
  
       make DESTDIR=PATH-TO-ROOTDIR install
  
  where PATH-TO-ROOTDIR is the absolute path of a directory relative to
  which all installation paths will be interpreted.  Note that the
! directory specified by `DESTDIR' need not exist yet; it will be created
  if necessary.
  
!    There is a subtle point with tooldirs and `DESTDIR': If you relocate
! a cross-compiler installation with e.g. `DESTDIR=ROOTDIR', then the
! directory `ROOTDIR/EXEC-PREFIX/TARGET-ALIAS/bin' will be filled with
  duplicated GCC executables only if it already exists, it will not be
! created otherwise.  This is regarded as a feature, not as a bug,
! because it gives slightly more control to the packagers using the
! `DESTDIR' feature.
  
     You can install stripped programs and libraries with
  
--- 2666,2703 ----
  instance).
  
     That step completes the installation of GCC; user level binaries can
! be found in 'PREFIX/bin' where PREFIX is the value you specified with
! the '--prefix' to configure (or '/usr/local' by default).  (If you
! specified '--bindir', that directory will be used instead; otherwise, if
! you specified '--exec-prefix', 'EXEC-PREFIX/bin' will be used.)  Headers
! for the C++ and Java libraries are installed in 'PREFIX/include';
! libraries in 'LIBDIR' (normally 'PREFIX/lib'); internal parts of the
! compiler in 'LIBDIR/gcc' and 'LIBEXECDIR/gcc'; documentation in info
! format in 'INFODIR' (normally 'PREFIX/info').
  
     When installing cross-compilers, GCC's executables are not only
! installed into 'BINDIR', that is, 'EXEC-PREFIX/bin', but additionally
! into 'EXEC-PREFIX/TARGET-ALIAS/bin', if that directory exists.
  Typically, such "tooldirs" hold target-specific binutils, including
  assembler and linker.
  
!    Installation into a temporary staging area or into a 'chroot' jail
  can be achieved with the command
  
       make DESTDIR=PATH-TO-ROOTDIR install
  
  where PATH-TO-ROOTDIR is the absolute path of a directory relative to
  which all installation paths will be interpreted.  Note that the
! directory specified by 'DESTDIR' need not exist yet; it will be created
  if necessary.
  
!    There is a subtle point with tooldirs and 'DESTDIR': If you relocate
! a cross-compiler installation with e.g. 'DESTDIR=ROOTDIR', then the
! directory 'ROOTDIR/EXEC-PREFIX/TARGET-ALIAS/bin' will be filled with
  duplicated GCC executables only if it already exists, it will not be
! created otherwise.  This is regarded as a feature, not as a bug, because
! it gives slightly more control to the packagers using the 'DESTDIR'
! feature.
  
     You can install stripped programs and libraries with
  
*************** because it gives slightly more control t
*** 2744,2809 ****
  
     If you are bootstrapping a released version of GCC then please
  quickly review the build status page for your release, available from
! `http://gcc.gnu.org/buildstat.html'.  If your system is not listed for
  the version of GCC that you built, send a note to <gcc@gcc.gnu.org>
  indicating that you successfully built and installed GCC.  Include the
  following information:
  
!    * Output from running `SRCDIR/config.guess'.  Do not send that file
       itself, just the one-line output from running it.
  
!    * The output of `gcc -v' for your newly installed `gcc'.  This tells
       us which version of GCC you built and the options you passed to
       configure.
  
!    * Whether you enabled all languages or a subset of them.  If you
!      used a full distribution then this information is part of the
!      configure options in the output of `gcc -v', but if you downloaded
!      the "core" compiler plus additional front ends then it isn't
!      apparent which ones you built unless you tell us about it.
  
     * If the build was for GNU/Linux, also include:
!         * The distribution name and version (e.g., Red Hat 7.1 or
!           Debian 2.2.3); this information should be available from
!           `/etc/issue'.
  
!         * The version of the Linux kernel, available from `uname
!           --version' or `uname -a'.
  
          * The version of glibc you used; for RPM-based systems like Red
!           Hat, Mandrake, and SuSE type `rpm -q glibc' to get the glibc
!           version, and on systems like Debian and Progeny use `dpkg -l
            libc6'.
!      For other systems, you can include similar information if you
!      think it is relevant.
  
     * Any other information that you think would be useful to people
!      building GCC on the same configuration.  The new entry in the
!      build status list will include a link to the archived copy of your
       message.
  
!    We'd also like to know if the *note host/target specific
! installation notes: Specific.  didn't include your host/target
! information or if that information is incomplete or out of date.  Send
! a note to <gcc@gcc.gnu.org> detailing how the information should be
! changed.
  
     If you find a bug, please report it following the bug reporting
  guidelines.
  
!    If you want to print the GCC manuals, do `cd OBJDIR; make dvi'.  You
! will need to have `texi2dvi' (version at least 4.7) and TeX installed.
! This creates a number of `.dvi' files in subdirectories of `OBJDIR';
! these may be converted for printing with programs such as `dvips'.
! Alternately, by using `make pdf' in place of `make dvi', you can create
! documentation in the form of `.pdf' files; this requires `texi2pdf',
  which is included with Texinfo version 4.8 and later.  You can also buy
  printed manuals from the Free Software Foundation, though such manuals
  may not be for the most recent version of GCC.
  
!    If you would like to generate online HTML documentation, do `cd
  OBJDIR; make html' and HTML will be generated for the gcc manuals in
! `OBJDIR/gcc/HTML'.
  
  
  File: gccinstall.info,  Node: Binaries,  Next: Specific,  Prev: Installing GCC,  Up: Top
--- 2705,2769 ----
  
     If you are bootstrapping a released version of GCC then please
  quickly review the build status page for your release, available from
! <http://gcc.gnu.org/buildstat.html>.  If your system is not listed for
  the version of GCC that you built, send a note to <gcc@gcc.gnu.org>
  indicating that you successfully built and installed GCC.  Include the
  following information:
  
!    * Output from running 'SRCDIR/config.guess'.  Do not send that file
       itself, just the one-line output from running it.
  
!    * The output of 'gcc -v' for your newly installed 'gcc'.  This tells
       us which version of GCC you built and the options you passed to
       configure.
  
!    * Whether you enabled all languages or a subset of them.  If you used
!      a full distribution then this information is part of the configure
!      options in the output of 'gcc -v', but if you downloaded the "core"
!      compiler plus additional front ends then it isn't apparent which
!      ones you built unless you tell us about it.
  
     * If the build was for GNU/Linux, also include:
!         * The distribution name and version (e.g., Red Hat 7.1 or Debian
!           2.2.3); this information should be available from
!           '/etc/issue'.
  
!         * The version of the Linux kernel, available from 'uname
!           --version' or 'uname -a'.
  
          * The version of glibc you used; for RPM-based systems like Red
!           Hat, Mandrake, and SuSE type 'rpm -q glibc' to get the glibc
!           version, and on systems like Debian and Progeny use 'dpkg -l
            libc6'.
!      For other systems, you can include similar information if you think
!      it is relevant.
  
     * Any other information that you think would be useful to people
!      building GCC on the same configuration.  The new entry in the build
!      status list will include a link to the archived copy of your
       message.
  
!    We'd also like to know if the *note host/target specific installation
! notes: Specific. didn't include your host/target information or if that
! information is incomplete or out of date.  Send a note to
! <gcc@gcc.gnu.org> detailing how the information should be changed.
  
     If you find a bug, please report it following the bug reporting
  guidelines.
  
!    If you want to print the GCC manuals, do 'cd OBJDIR; make dvi'.  You
! will need to have 'texi2dvi' (version at least 4.7) and TeX installed.
! This creates a number of '.dvi' files in subdirectories of 'OBJDIR';
! these may be converted for printing with programs such as 'dvips'.
! Alternately, by using 'make pdf' in place of 'make dvi', you can create
! documentation in the form of '.pdf' files; this requires 'texi2pdf',
  which is included with Texinfo version 4.8 and later.  You can also buy
  printed manuals from the Free Software Foundation, though such manuals
  may not be for the most recent version of GCC.
  
!    If you would like to generate online HTML documentation, do 'cd
  OBJDIR; make html' and HTML will be generated for the gcc manuals in
! 'OBJDIR/gcc/HTML'.
  
  
  File: gccinstall.info,  Node: Binaries,  Next: Specific,  Prev: Installing GCC,  Up: Top
*************** File: gccinstall.info,  Node: Binaries,
*** 2811,2820 ****
  8 Installing GCC: Binaries
  **************************
  
!    We are often asked about pre-compiled versions of GCC.  While we
! cannot provide these for all platforms, below you'll find links to
! binaries for various platforms where creating them by yourself is not
! easy due to various reasons.
  
     Please note that we did not create these binaries, nor do we support
  them.  If you have any problems installing them, please contact their
--- 2771,2780 ----
  8 Installing GCC: Binaries
  **************************
  
! We are often asked about pre-compiled versions of GCC.  While we cannot
! provide these for all platforms, below you'll find links to binaries for
! various platforms where creating them by yourself is not easy due to
! various reasons.
  
     Please note that we did not create these binaries, nor do we support
  them.  If you have any problems installing them, please contact their
*************** makers.
*** 2837,2843 ****
  
     * Microsoft Windows:
          * The Cygwin project;
- 
          * The MinGW and mingw-w64 projects.
  
     * OpenPKG offers binaries for quite a number of platforms.
--- 2797,2802 ----
*************** File: gccinstall.info,  Node: Specific,
*** 2851,2858 ****
  9 Host/target specific installation notes for GCC
  *************************************************
  
!    Please read this document carefully _before_ installing the GNU
! Compiler Collection on your machine.
  
     Note that this list of install notes is _not_ a list of supported
  hosts or targets.  Not all supported hosts and targets are listed here,
--- 2810,2817 ----
  9 Host/target specific installation notes for GCC
  *************************************************
  
! Please read this document carefully _before_ installing the GNU Compiler
! Collection on your machine.
  
     Note that this list of install notes is _not_ a list of supported
  hosts or targets.  Not all supported hosts and targets are listed here,
*************** have to.
*** 2862,2891 ****
  aarch64*-*-*
  ============
  
! Binutils pre 2.24 does not have support for selecting `-mabi' and does
  not support ILP32.  If it is used to build GCC 4.9 or later, GCC will
! not support option `-mabi=ilp32'.
  
     To enable a workaround for the Cortex-A53 erratum number 835769 by
  default (for all CPUs regardless of -mcpu option given) at configure
! time use the `--enable-fix-cortex-a53-835769' option.  This will enable
  the fix by default and can be explicitly disabled during compilation by
! passing the `-mno-fix-cortex-a53-835769' option.  Conversely,
! `--disable-fix-cortex-a53-835769' will disable the workaround by
  default.  The workaround is disabled by default if neither of
! `--enable-fix-cortex-a53-835769' or `--disable-fix-cortex-a53-835769'
! is given at configure time.
  
     To enable a workaround for the Cortex-A53 erratum number 843419 by
  default (for all CPUs regardless of -mcpu option given) at configure
! time use the `--enable-fix-cortex-a53-843419' option.  This workaround
! is applied at link time.  Enabling the workaround will cause GCC to
! pass the relevant option to the linker.  It can be explicitly disabled
! during compilation by passing the `-mno-fix-cortex-a53-843419' option.
! Conversely, `--disable-fix-cortex-a53-843419' will disable the
! workaround by default.  The workaround is disabled by default if
! neither of `--enable-fix-cortex-a53-843419' or
! `--disable-fix-cortex-a53-843419' is given at configure time.
  
  alpha*-*-*
  ==========
--- 2821,2850 ----
  aarch64*-*-*
  ============
  
! Binutils pre 2.24 does not have support for selecting '-mabi' and does
  not support ILP32.  If it is used to build GCC 4.9 or later, GCC will
! not support option '-mabi=ilp32'.
  
     To enable a workaround for the Cortex-A53 erratum number 835769 by
  default (for all CPUs regardless of -mcpu option given) at configure
! time use the '--enable-fix-cortex-a53-835769' option.  This will enable
  the fix by default and can be explicitly disabled during compilation by
! passing the '-mno-fix-cortex-a53-835769' option.  Conversely,
! '--disable-fix-cortex-a53-835769' will disable the workaround by
  default.  The workaround is disabled by default if neither of
! '--enable-fix-cortex-a53-835769' or '--disable-fix-cortex-a53-835769' is
! given at configure time.
  
     To enable a workaround for the Cortex-A53 erratum number 843419 by
  default (for all CPUs regardless of -mcpu option given) at configure
! time use the '--enable-fix-cortex-a53-843419' option.  This workaround
! is applied at link time.  Enabling the workaround will cause GCC to pass
! the relevant option to the linker.  It can be explicitly disabled during
! compilation by passing the '-mno-fix-cortex-a53-843419' option.
! Conversely, '--disable-fix-cortex-a53-843419' will disable the
! workaround by default.  The workaround is disabled by default if neither
! of '--enable-fix-cortex-a53-843419' or '--disable-fix-cortex-a53-843419'
! is given at configure time.
  
  alpha*-*-*
  ==========
*************** systems.
*** 2909,2933 ****
  
     Support for Tru64 UNIX V5.1 has been removed in GCC 4.8.  As of GCC
  4.6, support for Tru64 UNIX V4.0 and V5.0 has been removed.  As of GCC
! 3.2, versions before `alpha*-dec-osf4' are no longer supported.  (These
  are the versions which identify themselves as DEC OSF/1.)
  
  amd64-*-solaris2.1[0-9]*
  ========================
  
! This is a synonym for `x86_64-*-solaris2.1[0-9]*'.
  
  arc-*-elf32
  ===========
  
! Use `configure --target=arc-elf32 --with-cpu=CPU
  --enable-languages="c,c++"' to configure GCC, with CPU being one of
! `arc600', `arc601', or `arc700'.
  
  arc-linux-uclibc
  ================
  
! Use `configure --target=arc-linux-uclibc --with-cpu=arc700
  --enable-languages="c,c++"' to configure GCC.
  
  arm-*-eabi
--- 2868,2892 ----
  
     Support for Tru64 UNIX V5.1 has been removed in GCC 4.8.  As of GCC
  4.6, support for Tru64 UNIX V4.0 and V5.0 has been removed.  As of GCC
! 3.2, versions before 'alpha*-dec-osf4' are no longer supported.  (These
  are the versions which identify themselves as DEC OSF/1.)
  
  amd64-*-solaris2.1[0-9]*
  ========================
  
! This is a synonym for 'x86_64-*-solaris2.1[0-9]*'.
  
  arc-*-elf32
  ===========
  
! Use 'configure --target=arc-elf32 --with-cpu=CPU
  --enable-languages="c,c++"' to configure GCC, with CPU being one of
! 'arc600', 'arc601', or 'arc700'.
  
  arc-linux-uclibc
  ================
  
! Use 'configure --target=arc-linux-uclibc --with-cpu=arc700
  --enable-languages="c,c++"' to configure GCC.
  
  arm-*-eabi
*************** arm-*-eabi
*** 2935,2944 ****
  
  ARM-family processors.  Subtargets that use the ELF object format
  require GNU binutils 2.13 or newer.  Such subtargets include:
! `arm-*-netbsdelf', `arm-*-*linux-*' and `arm-*-rtemseabi'.
  
     Building the Ada frontend commonly fails (an infinite loop executing
! `xsinfo') if the host compiler is GNAT 4.8.  Host compilers built from
  the GNAT 4.6, 4.9 or 5 release branches are known to succeed.
  
  avr
--- 2894,2903 ----
  
  ARM-family processors.  Subtargets that use the ELF object format
  require GNU binutils 2.13 or newer.  Such subtargets include:
! 'arm-*-netbsdelf', 'arm-*-*linux-*' and 'arm-*-rtemseabi'.
  
     Building the Ada frontend commonly fails (an infinite loop executing
! 'xsinfo') if the host compiler is GNAT 4.8.  Host compilers built from
  the GNAT 4.6, 4.9 or 5 release branches are known to succeed.
  
  avr
*************** ATMEL AVR-family micro controllers.  The
*** 2948,2960 ****
  applications.  There are no standard Unix configurations.  *Note AVR
  Options: (gcc)AVR Options, for the list of supported MCU types.
  
!    Use `configure --target=avr --enable-languages="c"' to configure GCC.
  
     Further installation notes and other useful information about AVR
  tools can also be obtained from:
  
     * http://www.nongnu.org/avr/
- 
     * http://www.amelek.gda.pl/avr/
  
     We _strongly_ recommend using binutils 2.13 or newer.
--- 2907,2918 ----
  applications.  There are no standard Unix configurations.  *Note AVR
  Options: (gcc)AVR Options, for the list of supported MCU types.
  
!    Use 'configure --target=avr --enable-languages="c"' to configure GCC.
  
     Further installation notes and other useful information about AVR
  tools can also be obtained from:
  
     * http://www.nongnu.org/avr/
     * http://www.amelek.gda.pl/avr/
  
     We _strongly_ recommend using binutils 2.13 or newer.
*************** tools can also be obtained from:
*** 2967,2990 ****
  Blackfin
  ========
  
! The Blackfin processor, an Analog Devices DSP.  *Note Blackfin Options:
  (gcc)Blackfin Options,
  
     More information, and a version of binutils with support for this
! processor, is available at `http://blackfin.uclinux.org'
  
  CR16
  ====
  
! The CR16 CompactRISC architecture is a 16-bit architecture. This
  architecture is used in embedded applications.
  
     *Note CR16 Options: (gcc)CR16 Options,
  
!    Use `configure --target=cr16-elf --enable-languages=c,c++' to
  configure GCC for building a CR16 elf cross-compiler.
  
!    Use `configure --target=cr16-uclinux --enable-languages=c,c++' to
  configure GCC for building a CR16 uclinux cross-compiler.
  
  CRIS
--- 2925,2948 ----
  Blackfin
  ========
  
! The Blackfin processor, an Analog Devices DSP. *Note Blackfin Options:
  (gcc)Blackfin Options,
  
     More information, and a version of binutils with support for this
! processor, is available at <http://blackfin.uclinux.org>
  
  CR16
  ====
  
! The CR16 CompactRISC architecture is a 16-bit architecture.  This
  architecture is used in embedded applications.
  
     *Note CR16 Options: (gcc)CR16 Options,
  
!    Use 'configure --target=cr16-elf --enable-languages=c,c++' to
  configure GCC for building a CR16 elf cross-compiler.
  
!    Use 'configure --target=cr16-uclinux --enable-languages=c,c++' to
  configure GCC for building a CR16 uclinux cross-compiler.
  
  CRIS
*************** system-on-a-chip series.  These are used
*** 2997,3017 ****
  options.
  
     There are a few different CRIS targets:
! `cris-axis-elf'
       Mainly for monolithic embedded systems.  Includes a multilib for
!      the `v10' core used in `ETRAX 100 LX'.
! 
! `cris-axis-linux-gnu'
       A GNU/Linux port for the CRIS architecture, currently targeting
!      `ETRAX 100 LX' by default.
  
!    For `cris-axis-elf' you need binutils 2.11 or newer.  For
! `cris-axis-linux-gnu' you need binutils 2.12 or newer.
  
     Pre-packaged tools can be obtained from
! `ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/'.  More
  information about this platform is available at
! `http://developer.axis.com/'.
  
  DOS
  ===
--- 2955,2974 ----
  options.
  
     There are a few different CRIS targets:
! 'cris-axis-elf'
       Mainly for monolithic embedded systems.  Includes a multilib for
!      the 'v10' core used in 'ETRAX 100 LX'.
! 'cris-axis-linux-gnu'
       A GNU/Linux port for the CRIS architecture, currently targeting
!      'ETRAX 100 LX' by default.
  
!    For 'cris-axis-elf' you need binutils 2.11 or newer.  For
! 'cris-axis-linux-gnu' you need binutils 2.12 or newer.
  
     Pre-packaged tools can be obtained from
! <ftp://ftp.axis.com/pub/axis/tools/cris/compiler-kit/>.  More
  information about this platform is available at
! <http://developer.axis.com/>.
  
  DOS
  ===
*************** Support for FreeBSD 1 was discontinued i
*** 3038,3068 ****
     In order to better utilize FreeBSD base system functionality and
  match the configuration of the system compiler, GCC 4.5 and above as
  well as GCC 4.4 past 2010-06-20 leverage SSP support in libc (which is
! present on FreeBSD 7 or later) and the use of `__cxa_atexit' by default
! (on FreeBSD 6 or later).  The use of `dl_iterate_phdr' inside
! `libgcc_s.so.1' and boehm-gc (on FreeBSD 7 or later) is enabled by GCC
  4.5 and above.
  
     We support FreeBSD using the ELF file format with DWARF 2 debugging
! for all CPU architectures.  You may use `-gstabs' instead of `-g', if
  you really want the old debugging format.  There are no known issues
! with mixing object files and libraries with different debugging
! formats.  Otherwise, this release of GCC should now match more of the
  configuration used in the stock FreeBSD configuration of GCC.  In
! particular, `--enable-threads' is now configured by default.  However,
  as a general user, do not attempt to replace the system compiler with
! this release.  Known to bootstrap and check with good results on
! FreeBSD 7.2-STABLE.  In the past, known to bootstrap and check with
! good results on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4, 4.5, 4.8, 4.9 and
! 5-CURRENT.
  
!    The version of binutils installed in `/usr/bin' probably works with
  this release of GCC.  Bootstrapping against the latest GNU binutils
! and/or the version found in `/usr/ports/devel/binutils' has been known
  to enable additional features and improve overall testsuite results.
  However, it is currently known that boehm-gc (which itself is required
! for java) may not configure properly on FreeBSD prior to the FreeBSD
! 7.0 release with GNU binutils after 2.16.1.
  
  ft32-*-elf
  ==========
--- 2995,3024 ----
     In order to better utilize FreeBSD base system functionality and
  match the configuration of the system compiler, GCC 4.5 and above as
  well as GCC 4.4 past 2010-06-20 leverage SSP support in libc (which is
! present on FreeBSD 7 or later) and the use of '__cxa_atexit' by default
! (on FreeBSD 6 or later).  The use of 'dl_iterate_phdr' inside
! 'libgcc_s.so.1' and boehm-gc (on FreeBSD 7 or later) is enabled by GCC
  4.5 and above.
  
     We support FreeBSD using the ELF file format with DWARF 2 debugging
! for all CPU architectures.  You may use '-gstabs' instead of '-g', if
  you really want the old debugging format.  There are no known issues
! with mixing object files and libraries with different debugging formats.
! Otherwise, this release of GCC should now match more of the
  configuration used in the stock FreeBSD configuration of GCC.  In
! particular, '--enable-threads' is now configured by default.  However,
  as a general user, do not attempt to replace the system compiler with
! this release.  Known to bootstrap and check with good results on FreeBSD
! 7.2-STABLE.  In the past, known to bootstrap and check with good results
! on FreeBSD 3.0, 3.4, 4.0, 4.2, 4.3, 4.4, 4.5, 4.8, 4.9 and 5-CURRENT.
  
!    The version of binutils installed in '/usr/bin' probably works with
  this release of GCC.  Bootstrapping against the latest GNU binutils
! and/or the version found in '/usr/ports/devel/binutils' has been known
  to enable additional features and improve overall testsuite results.
  However, it is currently known that boehm-gc (which itself is required
! for java) may not configure properly on FreeBSD prior to the FreeBSD 7.0
! release with GNU binutils after 2.16.1.
  
  ft32-*-elf
  ==========
*************** Support for HP-UX version 9 and older wa
*** 3090,3107 ****
     We require using gas/binutils on all hppa platforms.  Version 2.19 or
  later is recommended.
  
!    It may be helpful to configure GCC with the `--with-gnu-as' and
! `--with-as=...' options to ensure that GCC can find GAS.
  
!    The HP assembler should not be used with GCC.  It is rarely tested
! and may not work.  It shouldn't be used with any languages other than C
! due to its many limitations.
  
!    Specifically, `-g' does not work (HP-UX uses a peculiar debugging
  format which GCC does not know about).  It also inserts timestamps into
! each object file it creates, causing the 3-stage comparison test to
! fail during a bootstrap.  You should be able to continue by saying
! `make all-host all-target' after getting the failure from `make'.
  
     Various GCC features are not supported.  For example, it does not
  support weak symbols or alias definitions.  As a result, explicit
--- 3046,3063 ----
     We require using gas/binutils on all hppa platforms.  Version 2.19 or
  later is recommended.
  
!    It may be helpful to configure GCC with the '--with-gnu-as' and
! '--with-as=...' options to ensure that GCC can find GAS.
  
!    The HP assembler should not be used with GCC. It is rarely tested and
! may not work.  It shouldn't be used with any languages other than C due
! to its many limitations.
  
!    Specifically, '-g' does not work (HP-UX uses a peculiar debugging
  format which GCC does not know about).  It also inserts timestamps into
! each object file it creates, causing the 3-stage comparison test to fail
! during a bootstrap.  You should be able to continue by saying 'make
! all-host all-target' after getting the failure from 'make'.
  
     Various GCC features are not supported.  For example, it does not
  support weak symbols or alias definitions.  As a result, explicit
*************** difficult if not impossible to build man
*** 3112,3118 ****
  PROCESSOR_7100LC and PROCESSOR_8000.  They are selected from the pa-risc
  architecture specified for the target machine when configuring.
  PROCESSOR_8000 is the default.  PROCESSOR_7100LC is selected when the
! target is a `hppa1*' machine.
  
     The PROCESSOR_8000 model is not well suited to older processors.
  Thus, it is important to completely specify the machine architecture
--- 3068,3074 ----
  PROCESSOR_7100LC and PROCESSOR_8000.  They are selected from the pa-risc
  architecture specified for the target machine when configuring.
  PROCESSOR_8000 is the default.  PROCESSOR_7100LC is selected when the
! target is a 'hppa1*' machine.
  
     The PROCESSOR_8000 model is not well suited to older processors.
  Thus, it is important to completely specify the machine architecture
*************** when configuring if you want a model oth
*** 3120,3142 ****
  macro TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different
  default scheduling model is desired.
  
!    As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10
! through 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later.
! This namespace change might cause problems when bootstrapping with an
! earlier version of GCC or the HP compiler as essentially the same
! namespace is required for an entire build.  This problem can be avoided
! in a number of ways.  With HP cc, `UNIX_STD' can be set to `95' or
! `98'.  Another way is to add an appropriate set of predefines to `CC'.
! The description for the `munix=' option contains a list of the
! predefines used with each standard.
  
!    More specific information to `hppa*-hp-hpux*' targets follows.
  
  hppa*-hp-hpux10
  ===============
  
  For hpux10.20, we _highly_ recommend you pick up the latest sed patch
! `PHCO_19798' from HP.
  
     The C++ ABI has changed incompatibly in GCC 4.0.  COMDAT subspaces
  are used for one-only code and data.  This resolves many of the previous
--- 3076,3098 ----
  macro TARGET_SCHED_DEFAULT can be defined in BOOT_CFLAGS if a different
  default scheduling model is desired.
  
!    As of GCC 4.0, GCC uses the UNIX 95 namespace for HP-UX 10.10 through
! 11.00, and the UNIX 98 namespace for HP-UX 11.11 and later.  This
! namespace change might cause problems when bootstrapping with an earlier
! version of GCC or the HP compiler as essentially the same namespace is
! required for an entire build.  This problem can be avoided in a number
! of ways.  With HP cc, 'UNIX_STD' can be set to '95' or '98'.  Another
! way is to add an appropriate set of predefines to 'CC'.  The description
! for the 'munix=' option contains a list of the predefines used with each
! standard.
  
!    More specific information to 'hppa*-hp-hpux*' targets follows.
  
  hppa*-hp-hpux10
  ===============
  
  For hpux10.20, we _highly_ recommend you pick up the latest sed patch
! 'PHCO_19798' from HP.
  
     The C++ ABI has changed incompatibly in GCC 4.0.  COMDAT subspaces
  are used for one-only code and data.  This resolves many of the previous
*************** hppa*-hp-hpux11
*** 3150,3162 ****
  GCC 3.0 and up support HP-UX 11.  GCC 2.95.x is not supported and cannot
  be used to compile GCC 3.0 and up.
  
!    The libffi and libjava libraries haven't been ported to 64-bit HP-UX
! and don't build.
  
     Refer to binaries for information about obtaining precompiled GCC
  binaries for HP-UX.  Precompiled binaries must be obtained to build the
! Ada language as it can't be bootstrapped using C.  Ada is only
! available for the 32-bit PA-RISC runtime.
  
     Starting with GCC 3.4 an ISO C compiler is required to bootstrap.
  The bundled compiler supports only traditional C; you will need either
--- 3106,3118 ----
  GCC 3.0 and up support HP-UX 11.  GCC 2.95.x is not supported and cannot
  be used to compile GCC 3.0 and up.
  
!    The libffi and libjava libraries haven't been ported to 64-bit
! HP-UX and don't build.
  
     Refer to binaries for information about obtaining precompiled GCC
  binaries for HP-UX.  Precompiled binaries must be obtained to build the
! Ada language as it can't be bootstrapped using C.  Ada is only available
! for the 32-bit PA-RISC runtime.
  
     Starting with GCC 3.4 an ISO C compiler is required to bootstrap.
  The bundled compiler supports only traditional C; you will need either
*************** compiler, but the process requires sever
*** 3167,3173 ****
  used to build later versions.  The fastjar program contains ISO C code
  and can't be built with the HP bundled compiler.  This problem can be
  avoided by not building the Java language.  For example, use the
! `--enable-languages="c,c++,f77,objc"' option in your configure command.
  
     There are several possible approaches to building the distribution.
  Binutils can be built first using the HP tools.  Then, the GCC
--- 3123,3129 ----
  used to build later versions.  The fastjar program contains ISO C code
  and can't be built with the HP bundled compiler.  This problem can be
  avoided by not building the Java language.  For example, use the
! '--enable-languages="c,c++,f77,objc"' option in your configure command.
  
     There are several possible approaches to building the distribution.
  Binutils can be built first using the HP tools.  Then, the GCC
*************** start from a binary distribution.
*** 3178,3256 ****
  
     On 64-bit capable systems, there are two distinct targets.  Different
  installation prefixes must be used if both are to be installed on the
! same system.  The `hppa[1-2]*-hp-hpux11*' target generates code for the
  32-bit PA-RISC runtime architecture and uses the HP linker.  The
! `hppa64-hp-hpux11*' target generates 64-bit code for the PA-RISC 2.0
  architecture.
  
     The script config.guess now selects the target type based on the
! compiler detected during configuration.  You must define `PATH' or `CC'
  so that configure finds an appropriate compiler for the initial
! bootstrap.  When `CC' is used, the definition should contain the
! options that are needed whenever `CC' is used.
  
     Specifically, options that determine the runtime architecture must be
! in `CC' to correctly select the target for the build.  It is also
! convenient to place many other compiler options in `CC'.  For example,
! `CC="cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE"' can
! be used to bootstrap the GCC 3.3 branch with the HP compiler in 64-bit
! K&R/bundled mode.  The `+DA2.0W' option will result in the automatic
! selection of the `hppa64-hp-hpux11*' target.  The macro definition
! table of cpp needs to be increased for a successful build with the HP
  compiler.  _CLASSIC_TYPES and _HPUX_SOURCE need to be defined when
! building with the bundled compiler, or when using the `-Ac' option.
! These defines aren't necessary with `-Ae'.
  
!    It is best to explicitly configure the `hppa64-hp-hpux11*' target
! with the `--with-ld=...' option.  This overrides the standard search
! for ld.  The two linkers supported on this target require different
  commands.  The default linker is determined during configuration.  As a
  result, it's not possible to switch linkers in the middle of a GCC
  build.  This has been reported to sometimes occur in unified builds of
  binutils and GCC.
  
     A recent linker patch must be installed for the correct operation of
! GCC 3.3 and later.  `PHSS_26559' and `PHSS_24304' are the oldest linker
  patches that are known to work.  They are for HP-UX 11.00 and 11.11,
! respectively.  `PHSS_24303', the companion to `PHSS_24304', might be
  usable but it hasn't been tested.  These patches have been superseded.
! Consult the HP patch database to obtain the currently recommended
! linker patch for your system.
  
     The patches are necessary for the support of weak symbols on the
  32-bit port, and for the running of initializers and finalizers.  Weak
  symbols are implemented using SOM secondary definition symbols.  Prior
  to HP-UX 11, there are bugs in the linker support for secondary symbols.
  The patches correct a problem of linker core dumps creating shared
! libraries containing secondary symbols, as well as various other
! linking issues involving secondary symbols.
  
     GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to
  run initializers and finalizers on the 64-bit port.  The 32-bit port
! uses the linker `+init' and `+fini' options for the same purpose.  The
! patches correct various problems with the +init/+fini options,
! including program core dumps.  Binutils 2.14 corrects a problem on the
! 64-bit port resulting from HP's non-standard use of the .init and .fini
! sections for array initializers and finalizers.
  
     Although the HP and GNU linkers are both supported for the
! `hppa64-hp-hpux11*' target, it is strongly recommended that the HP
  linker be used for link editing on this target.
  
     At this time, the GNU linker does not support the creation of long
  branch stubs.  As a result, it can't successfully link binaries
  containing branch offsets larger than 8 megabytes.  In addition, there
  are problems linking shared libraries, linking executables with
! `-static', and with dwarf2 unwind and exception support.  It also
  doesn't provide stubs for internal calls to global functions in shared
  libraries, so these calls can't be overloaded.
  
     The HP dynamic loader does not support GNU symbol versioning, so
  symbol versioning is not supported.  It may be necessary to disable
! symbol versioning with `--disable-symvers' when using GNU ld.
  
     POSIX threads are the default.  The optional DCE thread library is
! not supported, so `--enable-threads=dce' does not work.
  
  *-*-linux-gnu
  =============
--- 3134,3212 ----
  
     On 64-bit capable systems, there are two distinct targets.  Different
  installation prefixes must be used if both are to be installed on the
! same system.  The 'hppa[1-2]*-hp-hpux11*' target generates code for the
  32-bit PA-RISC runtime architecture and uses the HP linker.  The
! 'hppa64-hp-hpux11*' target generates 64-bit code for the PA-RISC 2.0
  architecture.
  
     The script config.guess now selects the target type based on the
! compiler detected during configuration.  You must define 'PATH' or 'CC'
  so that configure finds an appropriate compiler for the initial
! bootstrap.  When 'CC' is used, the definition should contain the options
! that are needed whenever 'CC' is used.
  
     Specifically, options that determine the runtime architecture must be
! in 'CC' to correctly select the target for the build.  It is also
! convenient to place many other compiler options in 'CC'.  For example,
! 'CC="cc -Ac +DA2.0W -Wp,-H16376 -D_CLASSIC_TYPES -D_HPUX_SOURCE"' can be
! used to bootstrap the GCC 3.3 branch with the HP compiler in 64-bit
! K&R/bundled mode.  The '+DA2.0W' option will result in the automatic
! selection of the 'hppa64-hp-hpux11*' target.  The macro definition table
! of cpp needs to be increased for a successful build with the HP
  compiler.  _CLASSIC_TYPES and _HPUX_SOURCE need to be defined when
! building with the bundled compiler, or when using the '-Ac' option.
! These defines aren't necessary with '-Ae'.
  
!    It is best to explicitly configure the 'hppa64-hp-hpux11*' target
! with the '--with-ld=...' option.  This overrides the standard search for
! ld.  The two linkers supported on this target require different
  commands.  The default linker is determined during configuration.  As a
  result, it's not possible to switch linkers in the middle of a GCC
  build.  This has been reported to sometimes occur in unified builds of
  binutils and GCC.
  
     A recent linker patch must be installed for the correct operation of
! GCC 3.3 and later.  'PHSS_26559' and 'PHSS_24304' are the oldest linker
  patches that are known to work.  They are for HP-UX 11.00 and 11.11,
! respectively.  'PHSS_24303', the companion to 'PHSS_24304', might be
  usable but it hasn't been tested.  These patches have been superseded.
! Consult the HP patch database to obtain the currently recommended linker
! patch for your system.
  
     The patches are necessary for the support of weak symbols on the
  32-bit port, and for the running of initializers and finalizers.  Weak
  symbols are implemented using SOM secondary definition symbols.  Prior
  to HP-UX 11, there are bugs in the linker support for secondary symbols.
  The patches correct a problem of linker core dumps creating shared
! libraries containing secondary symbols, as well as various other linking
! issues involving secondary symbols.
  
     GCC 3.3 uses the ELF DT_INIT_ARRAY and DT_FINI_ARRAY capabilities to
  run initializers and finalizers on the 64-bit port.  The 32-bit port
! uses the linker '+init' and '+fini' options for the same purpose.  The
! patches correct various problems with the +init/+fini options, including
! program core dumps.  Binutils 2.14 corrects a problem on the 64-bit port
! resulting from HP's non-standard use of the .init and .fini sections for
! array initializers and finalizers.
  
     Although the HP and GNU linkers are both supported for the
! 'hppa64-hp-hpux11*' target, it is strongly recommended that the HP
  linker be used for link editing on this target.
  
     At this time, the GNU linker does not support the creation of long
  branch stubs.  As a result, it can't successfully link binaries
  containing branch offsets larger than 8 megabytes.  In addition, there
  are problems linking shared libraries, linking executables with
! '-static', and with dwarf2 unwind and exception support.  It also
  doesn't provide stubs for internal calls to global functions in shared
  libraries, so these calls can't be overloaded.
  
     The HP dynamic loader does not support GNU symbol versioning, so
  symbol versioning is not supported.  It may be necessary to disable
! symbol versioning with '--disable-symvers' when using GNU ld.
  
     POSIX threads are the default.  The optional DCE thread library is
! not supported, so '--enable-threads=dce' does not work.
  
  *-*-linux-gnu
  =============
*************** i?86-*-solaris2.10
*** 3273,3333 ****
  ==================
  
  Use this for Solaris 10 or later on x86 and x86-64 systems.  Starting
! with GCC 4.7, there is also a 64-bit `amd64-*-solaris2.1[0-9]*' or
! `x86_64-*-solaris2.1[0-9]*' configuration that corresponds to
! `sparcv9-sun-solaris2*'.
  
     It is recommended that you configure GCC to use the GNU assembler.
  The versions included in Solaris 10, from GNU binutils 2.15 (in
! `/usr/sfw/bin/gas'), and Solaris 11, from GNU binutils 2.19 or newer
! (also available as `/usr/bin/gas' and `/usr/gnu/bin/as'), work fine.
! Please note that the current version, from GNU binutils 2.26, only
! works on Solaris 12 when using the Solaris linker.  On Solaris 10 and
! 11, you either have to wait for GNU binutils 2.26.1 or newer, or stay
! with GNU binutils 2.25.1.  Recent versions of the Solaris assembler in
! `/usr/ccs/bin/as' work almost as well, though.
  
     For linking, the Solaris linker, is preferred.  If you want to use
  the GNU linker instead, note that due to a packaging bug the version in
! Solaris 10, from GNU binutils 2.15 (in `/usr/sfw/bin/gld'), cannot be
  used, while the version in Solaris 11, from GNU binutils 2.19 or newer
! (also in `/usr/gnu/bin/ld' and `/usr/bin/gld'), works, as does the
  latest version, from GNU binutils 2.26.
  
!    To use GNU `as', configure with the options `--with-gnu-as
  --with-as=/usr/sfw/bin/gas'.  It may be necessary to configure with
! `--without-gnu-ld --with-ld=/usr/ccs/bin/ld' to guarantee use of Sun
! `ld'.
  
  ia64-*-linux
  ============
  
! IA-64 processor (also known as IPF, or Itanium Processor Family)
! running GNU/Linux.
  
     If you are using the installed system libunwind library with
! `--with-system-libunwind', then you must use libunwind 0.98 or later.
  
     None of the following versions of GCC has an ABI that is compatible
! with any of the other versions in this list, with the exception that
! Red Hat 2.96 and Trillian 000171 are compatible with each other: 3.1,
! 3.0.2, 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717.  This primarily
! affects C++ programs and programs that create shared libraries.  GCC
! 3.1 or later is recommended for compiling linux, the kernel.  As of
! version 3.1 GCC is believed to be fully ABI compliant, and hence no
! more major ABI changes are expected.
  
  ia64-*-hpux*
  ============
  
  Building GCC on this target requires the GNU Assembler.  The bundled HP
  assembler will not work.  To prevent GCC from using the wrong assembler,
! the option `--with-gnu-as' may be necessary.
  
     The GCC libunwind library has not been ported to HPUX.  This means
! that for GCC versions 3.2.3 and earlier, `--enable-libunwind-exceptions'
  is required to build GCC.  For GCC 3.3 and later, this is the default.
! For gcc 3.4.3 and later, `--enable-libunwind-exceptions' is removed and
  the system libunwind library will always be used.
  
  *-ibm-aix*
--- 3229,3289 ----
  ==================
  
  Use this for Solaris 10 or later on x86 and x86-64 systems.  Starting
! with GCC 4.7, there is also a 64-bit 'amd64-*-solaris2.1[0-9]*' or
! 'x86_64-*-solaris2.1[0-9]*' configuration that corresponds to
! 'sparcv9-sun-solaris2*'.
  
     It is recommended that you configure GCC to use the GNU assembler.
  The versions included in Solaris 10, from GNU binutils 2.15 (in
! '/usr/sfw/bin/gas'), and Solaris 11, from GNU binutils 2.19 or newer
! (also available as '/usr/bin/gas' and '/usr/gnu/bin/as'), work fine.
! Please note that the current version, from GNU binutils 2.26, only works
! on Solaris 12 when using the Solaris linker.  On Solaris 10 and 11, you
! either have to wait for GNU binutils 2.26.1 or newer, or stay with GNU
! binutils 2.25.1.  Recent versions of the Solaris assembler in
! '/usr/ccs/bin/as' work almost as well, though.
  
     For linking, the Solaris linker, is preferred.  If you want to use
  the GNU linker instead, note that due to a packaging bug the version in
! Solaris 10, from GNU binutils 2.15 (in '/usr/sfw/bin/gld'), cannot be
  used, while the version in Solaris 11, from GNU binutils 2.19 or newer
! (also in '/usr/gnu/bin/ld' and '/usr/bin/gld'), works, as does the
  latest version, from GNU binutils 2.26.
  
!    To use GNU 'as', configure with the options '--with-gnu-as
  --with-as=/usr/sfw/bin/gas'.  It may be necessary to configure with
! '--without-gnu-ld --with-ld=/usr/ccs/bin/ld' to guarantee use of Sun
! 'ld'.
  
  ia64-*-linux
  ============
  
! IA-64 processor (also known as IPF, or Itanium Processor Family) running
! GNU/Linux.
  
     If you are using the installed system libunwind library with
! '--with-system-libunwind', then you must use libunwind 0.98 or later.
  
     None of the following versions of GCC has an ABI that is compatible
! with any of the other versions in this list, with the exception that Red
! Hat 2.96 and Trillian 000171 are compatible with each other: 3.1, 3.0.2,
! 3.0.1, 3.0, Red Hat 2.96, and Trillian 000717.  This primarily affects
! C++ programs and programs that create shared libraries.  GCC 3.1 or
! later is recommended for compiling linux, the kernel.  As of version 3.1
! GCC is believed to be fully ABI compliant, and hence no more major ABI
! changes are expected.
  
  ia64-*-hpux*
  ============
  
  Building GCC on this target requires the GNU Assembler.  The bundled HP
  assembler will not work.  To prevent GCC from using the wrong assembler,
! the option '--with-gnu-as' may be necessary.
  
     The GCC libunwind library has not been ported to HPUX.  This means
! that for GCC versions 3.2.3 and earlier, '--enable-libunwind-exceptions'
  is required to build GCC.  For GCC 3.3 and later, this is the default.
! For gcc 3.4.3 and later, '--enable-libunwind-exceptions' is removed and
  the system libunwind library will always be used.
  
  *-ibm-aix*
*************** Support for AIX version 4.2 and older wa
*** 3338,3347 ****
  
     "out of memory" bootstrap failures may indicate a problem with
  process resource limits (ulimit).  Hard limits are configured in the
! `/etc/security/limits' system configuration file.
  
     GCC 4.9 and above require a C++ compiler for bootstrap.  IBM VAC++ /
! xlC cannot bootstrap GCC.  xlc can bootstrap an older version of GCC and
  G++ can bootstrap recent releases of GCC.
  
     GCC can bootstrap with recent versions of IBM XLC, but bootstrapping
--- 3294,3303 ----
  
     "out of memory" bootstrap failures may indicate a problem with
  process resource limits (ulimit).  Hard limits are configured in the
! '/etc/security/limits' system configuration file.
  
     GCC 4.9 and above require a C++ compiler for bootstrap.  IBM VAC++ /
! xlC cannot bootstrap GCC. xlc can bootstrap an older version of GCC and
  G++ can bootstrap recent releases of GCC.
  
     GCC can bootstrap with recent versions of IBM XLC, but bootstrapping
*************** LDR_CNTRL environment variable, e.g.,
*** 3353,3363 ****
       % export LDR_CNTRL
  
     One can start with a pre-compiled version of GCC to build from
! sources.  One may delete GCC's "fixed" header files when starting with
! a version of GCC built for an earlier release of AIX.
  
     To speed up the configuration phases of bootstrapping and installing
! GCC, one may use GNU Bash instead of AIX `/bin/sh', e.g.,
  
       % CONFIG_SHELL=/opt/freeware/bin/bash
       % export CONFIG_SHELL
--- 3309,3319 ----
       % export LDR_CNTRL
  
     One can start with a pre-compiled version of GCC to build from
! sources.  One may delete GCC's "fixed" header files when starting with a
! version of GCC built for an earlier release of AIX.
  
     To speed up the configuration phases of bootstrapping and installing
! GCC, one may use GNU Bash instead of AIX '/bin/sh', e.g.,
  
       % CONFIG_SHELL=/opt/freeware/bin/bash
       % export CONFIG_SHELL
*************** SRCDIR/configure.
*** 3368,3387 ****
  
     Because GCC on AIX is built as a 32-bit executable by default,
  (although it can generate 64-bit programs) the GMP and MPFR libraries
! required by gfortran must be 32-bit libraries.  Building GMP and MPFR
! as static archive libraries works better than shared libraries.
  
!    Errors involving `alloca' when building GCC generally are due to an
! incorrect definition of `CC' in the Makefile or mixing files compiled
  with the native C compiler and GCC.  During the stage1 phase of the
! build, the native AIX compiler *must* be invoked as `cc' (not `xlc').
! Once `configure' has been informed of `xlc', one needs to use `make
! distclean' to remove the configure cache files and ensure that `CC'
  environment variable does not provide a definition that will confuse
! `configure'.  If this error occurs during stage2 or later, then the
  problem most likely is the version of Make (see above).
  
!    The native `as' and `ld' are recommended for bootstrapping on AIX.
  The GNU Assembler, GNU Linker, and GNU Binutils version 2.20 is the
  minimum level that supports bootstrap on AIX 5.  The GNU Assembler has
  not been updated to support AIX 6 or AIX 7.  The native AIX tools do
--- 3324,3343 ----
  
     Because GCC on AIX is built as a 32-bit executable by default,
  (although it can generate 64-bit programs) the GMP and MPFR libraries
! required by gfortran must be 32-bit libraries.  Building GMP and MPFR as
! static archive libraries works better than shared libraries.
  
!    Errors involving 'alloca' when building GCC generally are due to an
! incorrect definition of 'CC' in the Makefile or mixing files compiled
  with the native C compiler and GCC.  During the stage1 phase of the
! build, the native AIX compiler *must* be invoked as 'cc' (not 'xlc').
! Once 'configure' has been informed of 'xlc', one needs to use 'make
! distclean' to remove the configure cache files and ensure that 'CC'
  environment variable does not provide a definition that will confuse
! 'configure'.  If this error occurs during stage2 or later, then the
  problem most likely is the version of Make (see above).
  
!    The native 'as' and 'ld' are recommended for bootstrapping on AIX.
  The GNU Assembler, GNU Linker, and GNU Binutils version 2.20 is the
  minimum level that supports bootstrap on AIX 5.  The GNU Assembler has
  not been updated to support AIX 6 or AIX 7.  The native AIX tools do
*************** interoperate with GCC.
*** 3389,3436 ****
  
     AIX 7.1 added partial support for DWARF debugging, but full support
  requires AIX 7.1 TL03 SP7 that supports additional DWARF sections and
! fixes a bug in the assembler.  AIX 7.1 TL03 SP5 distributed a version
! of libm.a missing important symbols; a fix for IV77796 will be included
! in SP6.
  
     AIX 5.3 TL10, AIX 6.1 TL05 and AIX 7.1 TL00 introduced an AIX
  assembler change that sometimes produces corrupt assembly files causing
  AIX linker errors.  The bug breaks GCC bootstrap on AIX and can cause
  compilation failures with existing GCC installations.  An AIX iFix for
  AIX 5.3 is available (APAR IZ98385 for AIX 5.3 TL10, APAR IZ98477 for
! AIX 5.3 TL11 and IZ98134 for AIX 5.3 TL12). AIX 5.3 TL11 SP8, AIX 5.3
! TL12 SP5, AIX 6.1 TL04 SP11, AIX 6.1 TL05 SP7, AIX 6.1 TL06 SP6, AIX
! 6.1 TL07 and AIX 7.1 TL01 should include the fix.
  
!    Building `libstdc++.a' requires a fix for an AIX Assembler bug APAR
! IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1).  It also requires a fix
! for another AIX Assembler bug and a co-dependent AIX Archiver fix
! referenced as APAR IY53606 (AIX 5.2) or as APAR IY54774 (AIX 5.1)
  
!    `libstdc++' in GCC 3.4 increments the major version number of the
! shared object and GCC installation places the `libstdc++.a' shared
  library in a common location which will overwrite the and GCC 3.3
! version of the shared library.  Applications either need to be
! re-linked against the new shared library or the GCC 3.1 and GCC 3.3
! versions of the `libstdc++' shared object needs to be available to the
! AIX runtime loader.  The GCC 3.1 `libstdc++.so.4', if present, and GCC
! 3.3 `libstdc++.so.5' shared objects can be installed for runtime
! dynamic loading using the following steps to set the `F_LOADONLY' flag
! in the shared object for _each_ multilib `libstdc++.a' installed:
  
!    Extract the shared objects from the currently installed
! `libstdc++.a' archive:
       % ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5
  
!    Enable the `F_LOADONLY' flag so that the shared object will be
  available for runtime dynamic loading, but not linking:
       % strip -e libstdc++.so.4 libstdc++.so.5
  
!    Archive the runtime-only shared object in the GCC 3.4 `libstdc++.a'
  archive:
       % ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5
  
!    Eventually, the `--with-aix-soname=svr4' configure option may drop
  the need for this procedure for libraries that support it.
  
     Linking executables and shared libraries may produce warnings of
--- 3345,3392 ----
  
     AIX 7.1 added partial support for DWARF debugging, but full support
  requires AIX 7.1 TL03 SP7 that supports additional DWARF sections and
! fixes a bug in the assembler.  AIX 7.1 TL03 SP5 distributed a version of
! libm.a missing important symbols; a fix for IV77796 will be included in
! SP6.
  
     AIX 5.3 TL10, AIX 6.1 TL05 and AIX 7.1 TL00 introduced an AIX
  assembler change that sometimes produces corrupt assembly files causing
  AIX linker errors.  The bug breaks GCC bootstrap on AIX and can cause
  compilation failures with existing GCC installations.  An AIX iFix for
  AIX 5.3 is available (APAR IZ98385 for AIX 5.3 TL10, APAR IZ98477 for
! AIX 5.3 TL11 and IZ98134 for AIX 5.3 TL12).  AIX 5.3 TL11 SP8, AIX 5.3
! TL12 SP5, AIX 6.1 TL04 SP11, AIX 6.1 TL05 SP7, AIX 6.1 TL06 SP6, AIX 6.1
! TL07 and AIX 7.1 TL01 should include the fix.
  
!    Building 'libstdc++.a' requires a fix for an AIX Assembler bug APAR
! IY26685 (AIX 4.3) or APAR IY25528 (AIX 5.1).  It also requires a fix for
! another AIX Assembler bug and a co-dependent AIX Archiver fix referenced
! as APAR IY53606 (AIX 5.2) or as APAR IY54774 (AIX 5.1)
  
!    'libstdc++' in GCC 3.4 increments the major version number of the
! shared object and GCC installation places the 'libstdc++.a' shared
  library in a common location which will overwrite the and GCC 3.3
! version of the shared library.  Applications either need to be re-linked
! against the new shared library or the GCC 3.1 and GCC 3.3 versions of
! the 'libstdc++' shared object needs to be available to the AIX runtime
! loader.  The GCC 3.1 'libstdc++.so.4', if present, and GCC 3.3
! 'libstdc++.so.5' shared objects can be installed for runtime dynamic
! loading using the following steps to set the 'F_LOADONLY' flag in the
! shared object for _each_ multilib 'libstdc++.a' installed:
  
!    Extract the shared objects from the currently installed 'libstdc++.a'
! archive:
       % ar -x libstdc++.a libstdc++.so.4 libstdc++.so.5
  
!    Enable the 'F_LOADONLY' flag so that the shared object will be
  available for runtime dynamic loading, but not linking:
       % strip -e libstdc++.so.4 libstdc++.so.5
  
!    Archive the runtime-only shared object in the GCC 3.4 'libstdc++.a'
  archive:
       % ar -q libstdc++.a libstdc++.so.4 libstdc++.so.5
  
!    Eventually, the '--with-aix-soname=svr4' configure option may drop
  the need for this procedure for libraries that support it.
  
     Linking executables and shared libraries may produce warnings of
*************** executable.
*** 3445,3457 ****
  to parse archive libraries did not handle the new format correctly.
  These routines are used by GCC and result in error messages during
  linking such as "not a COFF file".  The version of the routines shipped
! with AIX 4.3.1 should work for a 32-bit environment.  The `-g' option
! of the archive command may be used to create archives of 32-bit objects
! using the original "small format".  A correct version of the routines
! is shipped with AIX 4.3.2 and above.
  
     Some versions of the AIX binder (linker) can fail with a relocation
! overflow severe error when the `-bbigtoc' option is used to link
  GCC-produced object files into an executable that overflows the TOC.  A
  fix for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC)
  is available from IBM Customer Support and from its
--- 3401,3413 ----
  to parse archive libraries did not handle the new format correctly.
  These routines are used by GCC and result in error messages during
  linking such as "not a COFF file".  The version of the routines shipped
! with AIX 4.3.1 should work for a 32-bit environment.  The '-g' option of
! the archive command may be used to create archives of 32-bit objects
! using the original "small format".  A correct version of the routines is
! shipped with AIX 4.3.2 and above.
  
     Some versions of the AIX binder (linker) can fail with a relocation
! overflow severe error when the '-bbigtoc' option is used to link
  GCC-produced object files into an executable that overflows the TOC.  A
  fix for APAR IX75823 (OVERFLOW DURING LINK WHEN USING GCC AND -BBIGTOC)
  is available from IBM Customer Support and from its
*************** and from its techsupport.services.ibm.co
*** 3470,3484 ****
  fix is incorporated in AIX 4.3.1 and above.
  
     AIX provides National Language Support (NLS).  Compilers and
! assemblers use NLS to support locale-specific representations of
! various data formats including floating-point numbers (e.g., `.'  vs
! `,' for separating decimal fractions).  There have been problems
! reported where GCC does not produce the same floating-point formats
! that the assembler expects.  If one encounters this problem, set the
! `LANG' environment variable to `C' or `En_US'.
  
!    A default can be specified with the `-mcpu=CPU_TYPE' switch and
! using the configure option `--with-cpu-CPU_TYPE'.
  
  iq2000-*-elf
  ============
--- 3426,3440 ----
  fix is incorporated in AIX 4.3.1 and above.
  
     AIX provides National Language Support (NLS).  Compilers and
! assemblers use NLS to support locale-specific representations of various
! data formats including floating-point numbers (e.g., '.' vs ',' for
! separating decimal fractions).  There have been problems reported where
! GCC does not produce the same floating-point formats that the assembler
! expects.  If one encounters this problem, set the 'LANG' environment
! variable to 'C' or 'En_US'.
  
!    A default can be specified with the '-mcpu=CPU_TYPE' switch and using
! the configure option '--with-cpu-CPU_TYPE'.
  
  iq2000-*-elf
  ============
*************** systems.
*** 3513,3535 ****
  m68k-*-*
  ========
  
! By default, `m68k-*-elf*', `m68k-*-rtems',  `m68k-*-uclinux' and
! `m68k-*-linux' build libraries for both M680x0 and ColdFire processors.
! If you only need the M680x0 libraries, you can omit the ColdFire ones
! by passing `--with-arch=m68k' to `configure'.  Alternatively, you can
! omit the M680x0 libraries by passing `--with-arch=cf' to `configure'.
! These targets default to 5206 or 5475 code as appropriate for the
! target system when configured with `--with-arch=cf' and 68020 code
! otherwise.
  
!    The `m68k-*-netbsd' and `m68k-*-openbsd' targets also support the
! `--with-arch' option.  They will generate ColdFire CFV4e code when
! configured with `--with-arch=cf' and 68020 code otherwise.
  
     You can override the default processors listed above by configuring
! with `--with-cpu=TARGET'.  This TARGET can either be a `-mcpu' argument
! or one of the following values: `m68000', `m68010', `m68020', `m68030',
! `m68040', `m68060', `m68020-40' and `m68020-60'.
  
     GCC requires at least binutils version 2.17 on these targets.
  
--- 3469,3490 ----
  m68k-*-*
  ========
  
! By default, 'm68k-*-elf*', 'm68k-*-rtems', 'm68k-*-uclinux' and
! 'm68k-*-linux' build libraries for both M680x0 and ColdFire processors.
! If you only need the M680x0 libraries, you can omit the ColdFire ones by
! passing '--with-arch=m68k' to 'configure'.  Alternatively, you can omit
! the M680x0 libraries by passing '--with-arch=cf' to 'configure'.  These
! targets default to 5206 or 5475 code as appropriate for the target
! system when configured with '--with-arch=cf' and 68020 code otherwise.
  
!    The 'm68k-*-netbsd' and 'm68k-*-openbsd' targets also support the
! '--with-arch' option.  They will generate ColdFire CFV4e code when
! configured with '--with-arch=cf' and 68020 code otherwise.
  
     You can override the default processors listed above by configuring
! with '--with-cpu=TARGET'.  This TARGET can either be a '-mcpu' argument
! or one of the following values: 'm68000', 'm68010', 'm68020', 'm68030',
! 'm68040', 'm68060', 'm68020-40' and 'm68020-60'.
  
     GCC requires at least binutils version 2.17 on these targets.
  
*************** m68k-*-uclinux
*** 3537,3543 ****
  ==============
  
  GCC 4.3 changed the uClinux configuration so that it uses the
! `m68k-linux-gnu' ABI rather than the `m68k-elf' ABI.  It also added
  improved support for C++ and flat shared libraries, both of which were
  ABI changes.
  
--- 3492,3498 ----
  ==============
  
  GCC 4.3 changed the uClinux configuration so that it uses the
! 'm68k-linux-gnu' ABI rather than the 'm68k-elf' ABI. It also added
  improved support for C++ and flat shared libraries, both of which were
  ABI changes.
  
*************** optional, and there should not be a warn
*** 3567,3602 ****
  
     The libstdc++ atomic locking routines for MIPS targets requires MIPS
  II and later.  A patch went in just after the GCC 3.3 release to make
! `mips*-*-*' use the generic implementation instead.  You can also
! configure for `mipsel-elf' as a workaround.  The `mips*-*-linux*'
! target continues to use the MIPS II routines.  More work on this is
! expected in future releases.
  
!    The built-in `__sync_*' functions are available on MIPS II and later
! systems and others that support the `ll', `sc' and `sync' instructions.
! This can be overridden by passing `--with-llsc' or `--without-llsc'
! when configuring GCC.  Since the Linux kernel emulates these
! instructions if they are missing, the default for `mips*-*-linux*'
! targets is `--with-llsc'.  The `--with-llsc' and `--without-llsc'
! configure options may be overridden at compile time by passing the
! `-mllsc' or `-mno-llsc' options to the compiler.
  
     MIPS systems check for division by zero (unless
! `-mno-check-zero-division' is passed to the compiler) by generating
! either a conditional trap or a break instruction.  Using trap results
! in smaller code, but is only supported on MIPS II and later.  Also,
! some versions of the Linux kernel have a bug that prevents trap from
! generating the proper signal (`SIGFPE').  To enable the use of break,
! use the `--with-divide=breaks' `configure' option when configuring GCC.
  The default is to use traps on systems that support them.
  
     The assembler from GNU binutils 2.17 and earlier has a bug in the way
! it sorts relocations for REL targets (o32, o64, EABI).  This can cause
  bad code to be generated for simple C++ programs.  Also the linker from
  GNU binutils versions prior to 2.17 has a bug which causes the runtime
! linker stubs in very large programs, like `libgcj.so', to be
! incorrectly generated.  GNU Binutils 2.18 and later (and snapshots made
! after Nov. 9, 2006) should be free from both of these problems.
  
  mips-sgi-irix5
  ==============
--- 3522,3557 ----
  
     The libstdc++ atomic locking routines for MIPS targets requires MIPS
  II and later.  A patch went in just after the GCC 3.3 release to make
! 'mips*-*-*' use the generic implementation instead.  You can also
! configure for 'mipsel-elf' as a workaround.  The 'mips*-*-linux*' target
! continues to use the MIPS II routines.  More work on this is expected in
! future releases.
  
!    The built-in '__sync_*' functions are available on MIPS II and later
! systems and others that support the 'll', 'sc' and 'sync' instructions.
! This can be overridden by passing '--with-llsc' or '--without-llsc' when
! configuring GCC. Since the Linux kernel emulates these instructions if
! they are missing, the default for 'mips*-*-linux*' targets is
! '--with-llsc'.  The '--with-llsc' and '--without-llsc' configure options
! may be overridden at compile time by passing the '-mllsc' or '-mno-llsc'
! options to the compiler.
  
     MIPS systems check for division by zero (unless
! '-mno-check-zero-division' is passed to the compiler) by generating
! either a conditional trap or a break instruction.  Using trap results in
! smaller code, but is only supported on MIPS II and later.  Also, some
! versions of the Linux kernel have a bug that prevents trap from
! generating the proper signal ('SIGFPE').  To enable the use of break,
! use the '--with-divide=breaks' 'configure' option when configuring GCC.
  The default is to use traps on systems that support them.
  
     The assembler from GNU binutils 2.17 and earlier has a bug in the way
! it sorts relocations for REL targets (o32, o64, EABI). This can cause
  bad code to be generated for simple C++ programs.  Also the linker from
  GNU binutils versions prior to 2.17 has a bug which causes the runtime
! linker stubs in very large programs, like 'libgcj.so', to be incorrectly
! generated.  GNU Binutils 2.18 and later (and snapshots made after Nov.
! 9, 2006) should be free from both of these problems.
  
  mips-sgi-irix5
  ==============
*************** Nvidia PTX target.
*** 3638,3658 ****
  
     Instead of GNU binutils, you will need to install nvptx-tools.  Tell
  GCC where to find it:
! `--with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin'.
  
     A nvptx port of newlib is available at nvptx-newlib.  It can be
! automatically built together with GCC.  For this, add a symbolic link
! to nvptx-newlib's `newlib' directory to the directory containing the
! GCC sources.
  
!    Use the `--disable-sjlj-exceptions' and
! `--enable-newlib-io-long-long' options when configuring.
  
  powerpc-*-*
  ===========
  
! You can specify a default version for the `-mcpu=CPU_TYPE' switch by
! using the configure option `--with-cpu-CPU_TYPE'.
  
     You will need binutils 2.15 or newer for a working GCC.
  
--- 3593,3613 ----
  
     Instead of GNU binutils, you will need to install nvptx-tools.  Tell
  GCC where to find it:
! '--with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin'.
  
     A nvptx port of newlib is available at nvptx-newlib.  It can be
! automatically built together with GCC.  For this, add a symbolic link to
! nvptx-newlib's 'newlib' directory to the directory containing the GCC
! sources.
  
!    Use the '--disable-sjlj-exceptions' and
! '--enable-newlib-io-long-long' options when configuring.
  
  powerpc-*-*
  ===========
  
! You can specify a default version for the '-mcpu=CPU_TYPE' switch by
! using the configure option '--with-cpu-CPU_TYPE'.
  
     You will need binutils 2.15 or newer for a working GCC.
  
*************** PowerPC running Darwin (Mac OS X kernel)
*** 3663,3673 ****
  
     Pre-installed versions of Mac OS X may not include any developer
  tools, meaning that you will not be able to build GCC from source.  Tool
! binaries are available at `http://opensource.apple.com/'.
  
     This version of GCC requires at least cctools-590.36.  The
  cctools-590.36 package referenced from
! `http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html' will not work on
  systems older than 10.3.9 (aka darwin7.9.0).
  
  powerpc-*-elf
--- 3618,3628 ----
  
     Pre-installed versions of Mac OS X may not include any developer
  tools, meaning that you will not be able to build GCC from source.  Tool
! binaries are available at <http://opensource.apple.com/>.
  
     This version of GCC requires at least cctools-590.36.  The
  cctools-590.36 package referenced from
! <http://gcc.gnu.org/ml/gcc/2006-03/msg00507.html> will not work on
  systems older than 10.3.9 (aka darwin7.9.0).
  
  powerpc-*-elf
*************** Embedded PowerPC system in little endian
*** 3715,3728 ****
  rl78-*-elf
  ==========
  
! The Renesas RL78 processor.  This configuration is intended for
! embedded systems.
  
  rx-*-elf
  ========
  
  The Renesas RX processor.  See
! `http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&fp=/products/mpumcu/rx_family/rx600_series'
  for more information about this processor.
  
  s390-*-linux*
--- 3670,3683 ----
  rl78-*-elf
  ==========
  
! The Renesas RL78 processor.  This configuration is intended for embedded
! systems.
  
  rx-*-elf
  ========
  
  The Renesas RX processor.  See
! <http://eu.renesas.com/fmwk.jsp?cnt=rx600_series_landing.jsp&fp=/products/mpumcu/rx_family/rx600_series>
  for more information about this processor.
  
  s390-*-linux*
*************** GCC 4.6.
*** 3750,3762 ****
  
     Sun does not ship a C compiler with Solaris 2 before Solaris 10,
  though you can download the Sun Studio compilers for free.  In Solaris
! 10 and 11, GCC 3.4.3 is available as `/usr/sfw/bin/gcc'.  Solaris 11
! also provides GCC 4.5.2, 4.7.3, and 4.8.2 as `/usr/gcc/4.5/bin/gcc' or
  similar.  Alternatively, you can install a pre-built GCC to bootstrap
! and install GCC.  See the binaries page for details.
  
!    The Solaris 2 `/bin/sh' will often fail to configure `libstdc++-v3',
! `boehm-gc' or `libjava'.  We therefore recommend using the following
  initial sequence of commands
  
       % CONFIG_SHELL=/bin/ksh
--- 3705,3717 ----
  
     Sun does not ship a C compiler with Solaris 2 before Solaris 10,
  though you can download the Sun Studio compilers for free.  In Solaris
! 10 and 11, GCC 3.4.3 is available as '/usr/sfw/bin/gcc'.  Solaris 11
! also provides GCC 4.5.2, 4.7.3, and 4.8.2 as '/usr/gcc/4.5/bin/gcc' or
  similar.  Alternatively, you can install a pre-built GCC to bootstrap
! and install GCC. See the binaries page for details.
  
!    The Solaris 2 '/bin/sh' will often fail to configure 'libstdc++-v3',
! 'boehm-gc' or 'libjava'.  We therefore recommend using the following
  initial sequence of commands
  
       % CONFIG_SHELL=/bin/ksh
*************** initial sequence of commands
*** 3764,3833 ****
  
  and proceed as described in the configure instructions.  In addition we
  strongly recommend specifying an absolute path to invoke
! `SRCDIR/configure'.
  
     Solaris 10 comes with a number of optional OS packages.  Some of
! these are needed to use GCC fully, namely `SUNWarc', `SUNWbtool',
! `SUNWesu', `SUNWhea', `SUNWlibm', `SUNWsprot', and `SUNWtoo'.  If you
  did not install all optional packages when installing Solaris 10, you
  will need to verify that the packages that GCC needs are installed.  To
! check whether an optional package is installed, use the `pkginfo'
! command.  To add an optional package, use the `pkgadd' command.  For
  further details, see the Solaris 10 documentation.
  
     Starting with Solaris 11, the package management has changed, so you
! need to check for `system/header', `system/linker', and
! `developer/assembler' packages.  Checking for and installing packages
! is done with the `pkg' command now.
  
!    Trying to use the linker and other tools in `/usr/ucb' to install
! GCC has been observed to cause trouble.  For example, the linker may
! hang indefinitely.  The fix is to remove `/usr/ucb' from your `PATH'.
  
     The build process works more smoothly with the legacy Sun tools so,
! if you have `/usr/xpg4/bin' in your `PATH', we recommend that you place
! `/usr/bin' before `/usr/xpg4/bin' for the duration of the build.
  
     We recommend the use of the Solaris assembler or the GNU assembler,
! in conjunction with the Solaris linker.  The GNU `as' versions included
! in Solaris 10, from GNU binutils 2.15 (in `/usr/sfw/bin/gas'), and
! Solaris 11, from GNU binutils 2.19 or newer (also in `/usr/bin/gas' and
! `/usr/gnu/bin/as'), are known to work.  Current versions of GNU
! binutils (2.26) are known to work as well, with the caveat mentioned in
  i?86-*-solaris2.10 .  Note that your mileage may vary if you use a
  combination of the GNU tools and the Solaris tools: while the
! combination GNU `as' + Sun `ld' should reasonably work, the reverse
! combination Sun `as' + GNU `ld' may fail to build or cause memory
! corruption at runtime in some cases for C++ programs.  GNU `ld' usually
  works as well, although the version included in Solaris 10 cannot be
! used due to several bugs.  Again, the current version (2.26) is known
! to work, but generally lacks platform specific features, so better stay
! with Solaris `ld'.  To use the LTO linker plugin
! (`-fuse-linker-plugin') with GNU `ld', GNU binutils _must_ be
! configured with `--enable-largefile'.
  
!    To enable symbol versioning in `libstdc++' with the Solaris linker,
! you need to have any version of GNU `c++filt', which is part of GNU
! binutils.  `libstdc++' symbol versioning will be disabled if no
! appropriate version is found.  Solaris `c++filt' from the Solaris
! Studio compilers does _not_ work.
  
!    GNU `make' version 3.81 or later is required to build libjava with
  the Solaris linker.
  
     Sun bug 4927647 sometimes causes random spurious testsuite failures
  related to missing diagnostic output.  This bug doesn't affect GCC
! itself, rather it is a kernel bug triggered by the `expect' program
! which is used only by the GCC testsuite driver.  When the bug causes
! the `expect' program to miss anticipated output, extra testsuite
! failures appear.
  
  sparc*-*-*
  ==========
  
  This section contains general configuration information for all
! SPARC-based platforms.  In addition to reading this section, please
! read all other sections that match your target.
  
     Newer versions of the GNU Multiple Precision Library (GMP), the MPFR
  library and the MPC library are known to be miscompiled by earlier
--- 3719,3788 ----
  
  and proceed as described in the configure instructions.  In addition we
  strongly recommend specifying an absolute path to invoke
! 'SRCDIR/configure'.
  
     Solaris 10 comes with a number of optional OS packages.  Some of
! these are needed to use GCC fully, namely 'SUNWarc', 'SUNWbtool',
! 'SUNWesu', 'SUNWhea', 'SUNWlibm', 'SUNWsprot', and 'SUNWtoo'.  If you
  did not install all optional packages when installing Solaris 10, you
  will need to verify that the packages that GCC needs are installed.  To
! check whether an optional package is installed, use the 'pkginfo'
! command.  To add an optional package, use the 'pkgadd' command.  For
  further details, see the Solaris 10 documentation.
  
     Starting with Solaris 11, the package management has changed, so you
! need to check for 'system/header', 'system/linker', and
! 'developer/assembler' packages.  Checking for and installing packages is
! done with the 'pkg' command now.
  
!    Trying to use the linker and other tools in '/usr/ucb' to install GCC
! has been observed to cause trouble.  For example, the linker may hang
! indefinitely.  The fix is to remove '/usr/ucb' from your 'PATH'.
  
     The build process works more smoothly with the legacy Sun tools so,
! if you have '/usr/xpg4/bin' in your 'PATH', we recommend that you place
! '/usr/bin' before '/usr/xpg4/bin' for the duration of the build.
  
     We recommend the use of the Solaris assembler or the GNU assembler,
! in conjunction with the Solaris linker.  The GNU 'as' versions included
! in Solaris 10, from GNU binutils 2.15 (in '/usr/sfw/bin/gas'), and
! Solaris 11, from GNU binutils 2.19 or newer (also in '/usr/bin/gas' and
! '/usr/gnu/bin/as'), are known to work.  Current versions of GNU binutils
! (2.26) are known to work as well, with the caveat mentioned in
  i?86-*-solaris2.10 .  Note that your mileage may vary if you use a
  combination of the GNU tools and the Solaris tools: while the
! combination GNU 'as' + Sun 'ld' should reasonably work, the reverse
! combination Sun 'as' + GNU 'ld' may fail to build or cause memory
! corruption at runtime in some cases for C++ programs.  GNU 'ld' usually
  works as well, although the version included in Solaris 10 cannot be
! used due to several bugs.  Again, the current version (2.26) is known to
! work, but generally lacks platform specific features, so better stay
! with Solaris 'ld'.  To use the LTO linker plugin ('-fuse-linker-plugin')
! with GNU 'ld', GNU binutils _must_ be configured with
! '--enable-largefile'.
  
!    To enable symbol versioning in 'libstdc++' with the Solaris linker,
! you need to have any version of GNU 'c++filt', which is part of GNU
! binutils.  'libstdc++' symbol versioning will be disabled if no
! appropriate version is found.  Solaris 'c++filt' from the Solaris Studio
! compilers does _not_ work.
  
!    GNU 'make' version 3.81 or later is required to build libjava with
  the Solaris linker.
  
     Sun bug 4927647 sometimes causes random spurious testsuite failures
  related to missing diagnostic output.  This bug doesn't affect GCC
! itself, rather it is a kernel bug triggered by the 'expect' program
! which is used only by the GCC testsuite driver.  When the bug causes the
! 'expect' program to miss anticipated output, extra testsuite failures
! appear.
  
  sparc*-*-*
  ==========
  
  This section contains general configuration information for all
! SPARC-based platforms.  In addition to reading this section, please read
! all other sections that match your target.
  
     Newer versions of the GNU Multiple Precision Library (GMP), the MPFR
  library and the MPC library are known to be miscompiled by earlier
*************** this difference is quite significant for
*** 3844,3861 ****
  information.
  
     Starting with Solaris 7, the operating system is capable of executing
! 64-bit SPARC V9 binaries.  GCC 3.1 and later properly supports this;
! the `-m64' option enables 64-bit code generation.  However, if all you
! want is code tuned for the UltraSPARC CPU, you should try the
! `-mtune=ultrasparc' option instead, which produces code that, unlike
  full 64-bit code, can still run on non-UltraSPARC machines.
  
     When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library on a Solaris 7 or later system, the canonical
! target triplet must be specified as the `build' parameter on the
  configure line.  This target triplet can be obtained by invoking
! `./config.guess' in the toplevel source directory of GCC (and not that
! of GMP or MPFR or MPC).  For example on a Solaris 9 system:
  
       % ./configure --build=sparc-sun-solaris2.9 --prefix=xxx
  
--- 3799,3816 ----
  information.
  
     Starting with Solaris 7, the operating system is capable of executing
! 64-bit SPARC V9 binaries.  GCC 3.1 and later properly supports this; the
! '-m64' option enables 64-bit code generation.  However, if all you want
! is code tuned for the UltraSPARC CPU, you should try the
! '-mtune=ultrasparc' option instead, which produces code that, unlike
  full 64-bit code, can still run on non-UltraSPARC machines.
  
     When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library on a Solaris 7 or later system, the canonical
! target triplet must be specified as the 'build' parameter on the
  configure line.  This target triplet can be obtained by invoking
! './config.guess' in the toplevel source directory of GCC (and not that
! of GMP or MPFR or MPC). For example on a Solaris 9 system:
  
       % ./configure --build=sparc-sun-solaris2.9 --prefix=xxx
  
*************** sparc-sun-solaris2.10
*** 3863,3869 ****
  =====================
  
  There is a bug in older versions of the Sun assembler which breaks
! thread-local storage (TLS).  A typical error message is
  
       ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o:
         symbol <unknown>: bad symbol type SECT: symbol type must be TLS
--- 3818,3824 ----
  =====================
  
  There is a bug in older versions of the Sun assembler which breaks
! thread-local storage (TLS). A typical error message is
  
       ld: fatal: relocation error: R_SPARC_TLS_LE_HIX22: file /var/tmp//ccamPA1v.o:
         symbol <unknown>: bad symbol type SECT: symbol type must be TLS
*************** sparc-*-linux*
*** 3875,3888 ****
  
  GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4 or
  newer on this platform.  All earlier binutils and glibc releases
! mishandled unaligned relocations on `sparc-*-*' targets.
  
  sparc64-*-solaris2*
  ===================
  
  When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library, the canonical target triplet must be
! specified as the `build' parameter on the configure line.  For example
  on a Solaris 9 system:
  
       % ./configure --build=sparc64-sun-solaris2.9 --prefix=xxx
--- 3830,3843 ----
  
  GCC versions 3.0 and higher require binutils 2.11.2 and glibc 2.2.4 or
  newer on this platform.  All earlier binutils and glibc releases
! mishandled unaligned relocations on 'sparc-*-*' targets.
  
  sparc64-*-solaris2*
  ===================
  
  When configuring the GNU Multiple Precision Library (GMP), the MPFR
  library or the MPC library, the canonical target triplet must be
! specified as the 'build' parameter on the configure line.  For example
  on a Solaris 9 system:
  
       % ./configure --build=sparc64-sun-solaris2.9 --prefix=xxx
*************** on a Solaris 9 system:
*** 3890,3901 ****
  sparcv9-*-solaris2*
  ===================
  
! This is a synonym for `sparc64-*-solaris2*'.
  
  c6x-*-*
  =======
  
! The C6X family of processors. This port requires binutils-2.22 or newer.
  
  tilegx-*-linux*
  ===============
--- 3845,3857 ----
  sparcv9-*-solaris2*
  ===================
  
! This is a synonym for 'sparc64-*-solaris2*'.
  
  c6x-*-*
  =======
  
! The C6X family of processors.  This port requires binutils-2.22 or
! newer.
  
  tilegx-*-linux*
  ===============
*************** systems.
*** 3924,3954 ****
  *-*-vxworks*
  ============
  
! Support for VxWorks is in flux.  At present GCC supports _only_ the
! very recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC.
! We welcome patches for other architectures supported by VxWorks 5.5.
  Support for VxWorks AE would also be welcome; we believe this is merely
  a matter of writing an appropriate "configlette" (see below).  We are
  not interested in supporting older, a.out or COFF-based, versions of
  VxWorks in GCC 3.
  
     VxWorks comes with an older version of GCC installed in
! `$WIND_BASE/host'; we recommend you do not overwrite it.  Choose an
  installation PREFIX entirely outside $WIND_BASE.  Before running
! `configure', create the directories `PREFIX' and `PREFIX/bin'.  Link or
! copy the appropriate assembler, linker, etc. into `PREFIX/bin', and set
! your PATH to include that directory while running both `configure' and
! `make'.
  
!    You must give `configure' the `--with-headers=$WIND_BASE/target/h'
! switch so that it can find the VxWorks system headers.  Since VxWorks
! is a cross compilation target only, you must also specify
! `--target=TARGET'.  `configure' will attempt to create the directory
! `PREFIX/TARGET/sys-include' and copy files into it; make sure the user
! running `configure' has sufficient privilege to do so.
  
     GCC's exception handling runtime requires a special "configlette"
! module, `contrib/gthr_supp_vxw_5x.c'.  Follow the instructions in that
  file to add the module to your kernel build.  (Future versions of
  VxWorks will incorporate this module.)
  
--- 3880,3910 ----
  *-*-vxworks*
  ============
  
! Support for VxWorks is in flux.  At present GCC supports _only_ the very
! recent VxWorks 5.5 (aka Tornado 2.2) release, and only on PowerPC.  We
! welcome patches for other architectures supported by VxWorks 5.5.
  Support for VxWorks AE would also be welcome; we believe this is merely
  a matter of writing an appropriate "configlette" (see below).  We are
  not interested in supporting older, a.out or COFF-based, versions of
  VxWorks in GCC 3.
  
     VxWorks comes with an older version of GCC installed in
! '$WIND_BASE/host'; we recommend you do not overwrite it.  Choose an
  installation PREFIX entirely outside $WIND_BASE.  Before running
! 'configure', create the directories 'PREFIX' and 'PREFIX/bin'.  Link or
! copy the appropriate assembler, linker, etc. into 'PREFIX/bin', and set
! your PATH to include that directory while running both 'configure' and
! 'make'.
  
!    You must give 'configure' the '--with-headers=$WIND_BASE/target/h'
! switch so that it can find the VxWorks system headers.  Since VxWorks is
! a cross compilation target only, you must also specify
! '--target=TARGET'.  'configure' will attempt to create the directory
! 'PREFIX/TARGET/sys-include' and copy files into it; make sure the user
! running 'configure' has sufficient privilege to do so.
  
     GCC's exception handling runtime requires a special "configlette"
! module, 'contrib/gthr_supp_vxw_5x.c'.  Follow the instructions in that
  file to add the module to your kernel build.  (Future versions of
  VxWorks will incorporate this module.)
  
*************** x86_64-*-*, amd64-*-*
*** 3958,4001 ****
  GCC supports the x86-64 architecture implemented by the AMD64 processor
  (amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD.
  On GNU/Linux the default is a bi-arch compiler which is able to generate
! both 64-bit x86-64 and 32-bit x86 code (via the `-m32' switch).
  
  x86_64-*-solaris2.1[0-9]*
  =========================
  
  GCC also supports the x86-64 architecture implemented by the AMD64
! processor (`amd64-*-*' is an alias for `x86_64-*-*') on Solaris 10 or
! later.  Unlike other systems, without special options a bi-arch
! compiler is built which generates 32-bit code by default, but can
! generate 64-bit x86-64 code with the `-m64' switch.  Since GCC 4.7,
! there is also a configuration that defaults to 64-bit code, but can
! generate 32-bit code with `-m32'.  To configure and build this way, you
! have to provide all support libraries like `libgmp' as 64-bit code,
! configure with `--target=x86_64-pc-solaris2.1x' and `CC=gcc -m64'.
  
  xtensa*-*-elf
  =============
  
! This target is intended for embedded Xtensa systems using the `newlib'
! C library.  It uses ELF but does not support shared objects.
  Designed-defined instructions specified via the Tensilica Instruction
  Extension (TIE) language are only supported through inline assembly.
  
     The Xtensa configuration information must be specified prior to
! building GCC.  The `include/xtensa-config.h' header file contains the
! configuration information.  If you created your own Xtensa
! configuration with the Xtensa Processor Generator, the downloaded files
! include a customized copy of this header file, which you can use to
! replace the default header file.
  
  xtensa*-*-linux*
  ================
  
  This target is for Xtensa systems running GNU/Linux.  It supports ELF
  shared objects and the GNU C library (glibc).  It also generates
! position-independent code (PIC) regardless of whether the `-fpic' or
! `-fPIC' options are used.  In other respects, this target is the same
! as the `xtensa*-*-elf' target.
  
  Microsoft Windows
  =================
--- 3914,3957 ----
  GCC supports the x86-64 architecture implemented by the AMD64 processor
  (amd64-*-* is an alias for x86_64-*-*) on GNU/Linux, FreeBSD and NetBSD.
  On GNU/Linux the default is a bi-arch compiler which is able to generate
! both 64-bit x86-64 and 32-bit x86 code (via the '-m32' switch).
  
  x86_64-*-solaris2.1[0-9]*
  =========================
  
  GCC also supports the x86-64 architecture implemented by the AMD64
! processor ('amd64-*-*' is an alias for 'x86_64-*-*') on Solaris 10 or
! later.  Unlike other systems, without special options a bi-arch compiler
! is built which generates 32-bit code by default, but can generate 64-bit
! x86-64 code with the '-m64' switch.  Since GCC 4.7, there is also a
! configuration that defaults to 64-bit code, but can generate 32-bit code
! with '-m32'.  To configure and build this way, you have to provide all
! support libraries like 'libgmp' as 64-bit code, configure with
! '--target=x86_64-pc-solaris2.1x' and 'CC=gcc -m64'.
  
  xtensa*-*-elf
  =============
  
! This target is intended for embedded Xtensa systems using the 'newlib' C
! library.  It uses ELF but does not support shared objects.
  Designed-defined instructions specified via the Tensilica Instruction
  Extension (TIE) language are only supported through inline assembly.
  
     The Xtensa configuration information must be specified prior to
! building GCC.  The 'include/xtensa-config.h' header file contains the
! configuration information.  If you created your own Xtensa configuration
! with the Xtensa Processor Generator, the downloaded files include a
! customized copy of this header file, which you can use to replace the
! default header file.
  
  xtensa*-*-linux*
  ================
  
  This target is for Xtensa systems running GNU/Linux.  It supports ELF
  shared objects and the GNU C library (glibc).  It also generates
! position-independent code (PIC) regardless of whether the '-fpic' or
! '-fPIC' options are used.  In other respects, this target is the same as
! the 'xtensa*-*-elf' target.
  
  Microsoft Windows
  =================
*************** Windows XP, and Windows Vista, are suppo
*** 4017,4040 ****
  platforms.  These targets differ in which Windows subsystem they target
  and which C libraries are used.
  
!    * Cygwin *-*-cygwin: Cygwin provides a user-space Linux API
!      emulation layer in the Win32 subsystem.
! 
     * Interix *-*-interix: The Interix subsystem provides native support
       for POSIX.
- 
     * MinGW *-*-mingw32: MinGW is a native GCC port for the Win32
       subsystem that provides a subset of POSIX.
! 
!    * MKS i386-pc-mks: NuTCracker from MKS.  See
!      `http://www.mkssoftware.com/' for more information.
  
  Intel 64-bit versions
  ---------------------
  
  GCC contains support for x86-64 using the mingw-w64 runtime library,
! available from `http://mingw-w64.sourceforge.net/'.  This library
! should be used with the target triple x86_64-pc-mingw32.
  
     Presently Windows for Itanium is not supported.
  
--- 3973,3993 ----
  platforms.  These targets differ in which Windows subsystem they target
  and which C libraries are used.
  
!    * Cygwin *-*-cygwin: Cygwin provides a user-space Linux API emulation
!      layer in the Win32 subsystem.
     * Interix *-*-interix: The Interix subsystem provides native support
       for POSIX.
     * MinGW *-*-mingw32: MinGW is a native GCC port for the Win32
       subsystem that provides a subset of POSIX.
!    * MKS i386-pc-mks: NuTCracker from MKS. See
!      <http://www.mkssoftware.com/> for more information.
  
  Intel 64-bit versions
  ---------------------
  
  GCC contains support for x86-64 using the mingw-w64 runtime library,
! available from <http://mingw-w64.sourceforge.net/>.  This library should
! be used with the target triple x86_64-pc-mingw32.
  
     Presently Windows for Itanium is not supported.
  
*************** support the Interix subsystem.  See abov
*** 4056,4062 ****
  used.
  
     PW32 (i386-pc-pw32) support was never completed, and the project
! seems to be inactive.  See `http://pw32.sourceforge.net/' for more
  information.
  
     UWIN support has been removed due to a lack of maintenance.
--- 4009,4015 ----
  used.
  
     PW32 (i386-pc-pw32) support was never completed, and the project
! seems to be inactive.  See <http://pw32.sourceforge.net/> for more
  information.
  
     UWIN support has been removed due to a lack of maintenance.
*************** version 2.20 or above if building your o
*** 4079,4085 ****
  ===========
  
  The Interix target is used by OpenNT, Interix, Services For UNIX (SFU),
! and Subsystem for UNIX-based Applications (SUA).  Applications compiled
  with this target run in the Interix subsystem, which is separate from
  the Win32 subsystem.  This target was last known to work in GCC 3.3.
  
--- 4032,4038 ----
  ===========
  
  The Interix target is used by OpenNT, Interix, Services For UNIX (SFU),
! and Subsystem for UNIX-based Applications (SUA). Applications compiled
  with this target run in the Interix subsystem, which is separate from
  the Win32 subsystem.  This target was last known to work in GCC 3.3.
  
*************** the Win32 subsystem.  This target was la
*** 4088,4094 ****
  
  GCC will build with and support only MinGW runtime 3.12 and later.
  Earlier versions of headers are incompatible with the new default
! semantics of `extern inline' in `-std=c99' and `-std=gnu99' modes.
  
  Older systems
  =============
--- 4041,4047 ----
  
  GCC will build with and support only MinGW runtime 3.12 and later.
  Earlier versions of headers are incompatible with the new default
! semantics of 'extern inline' in '-std=c99' and '-std=gnu99' modes.
  
  Older systems
  =============
*************** and may suffer from bitrot.
*** 4100,4106 ****
  
     Starting with GCC 3.1, each release has a list of "obsoleted"
  systems.  Support for these systems is still present in that release,
! but `configure' will fail unless the `--enable-obsolete' option is
  given.  Unless a maintainer steps forward, support for these systems
  will be removed from the next release of GCC.
  
--- 4053,4059 ----
  
     Starting with GCC 3.1, each release has a list of "obsoleted"
  systems.  Support for these systems is still present in that release,
! but 'configure' will fail unless the '--enable-obsolete' option is
  given.  Unless a maintainer steps forward, support for these systems
  will be removed from the next release of GCC.
  
*************** bring GCC up on such a system, if still
*** 4111,4143 ****
  require first installing an old version of GCC which did work on that
  system, and using it to compile a more recent GCC, to avoid bugs in the
  vendor compiler.  Old releases of GCC 1 and GCC 2 are available in the
! `old-releases' directory on the GCC mirror sites.  Header bugs may
! generally be avoided using `fixincludes', but bugs or deficiencies in
  libraries and the operating system may still cause problems.
  
     Support for older systems as targets for cross-compilation is less
  problematic than support for them as hosts for GCC; if an enthusiast
  wishes to make such a target work again (including resurrecting any of
! the targets that never worked with GCC 2, starting from the last
! version before they were removed), patches following the usual
! requirements would be likely to be accepted, since they should not
! affect the support for more modern targets.
  
     For some systems, old versions of GNU binutils may also be useful,
! and are available from `pub/binutils/old-releases' on sourceware.org
  mirror sites.
  
     Some of the information on specific systems above relates to such
  older systems, but much of the information about GCC on such systems
! (which may no longer be applicable to current GCC) is to be found in
! the GCC texinfo manual.
  
  all ELF targets (SVR4, Solaris 2, etc.)
  =======================================
  
  C++ support is significantly better on ELF targets if you use the GNU
! linker; duplicate copies of inlines, vtables and template
! instantiations will be discarded automatically.
  
  
  File: gccinstall.info,  Node: Old,  Next: GNU Free Documentation License,  Prev: Specific,  Up: Top
--- 4064,4096 ----
  require first installing an old version of GCC which did work on that
  system, and using it to compile a more recent GCC, to avoid bugs in the
  vendor compiler.  Old releases of GCC 1 and GCC 2 are available in the
! 'old-releases' directory on the GCC mirror sites.  Header bugs may
! generally be avoided using 'fixincludes', but bugs or deficiencies in
  libraries and the operating system may still cause problems.
  
     Support for older systems as targets for cross-compilation is less
  problematic than support for them as hosts for GCC; if an enthusiast
  wishes to make such a target work again (including resurrecting any of
! the targets that never worked with GCC 2, starting from the last version
! before they were removed), patches following the usual requirements
! would be likely to be accepted, since they should not affect the support
! for more modern targets.
  
     For some systems, old versions of GNU binutils may also be useful,
! and are available from 'pub/binutils/old-releases' on sourceware.org
  mirror sites.
  
     Some of the information on specific systems above relates to such
  older systems, but much of the information about GCC on such systems
! (which may no longer be applicable to current GCC) is to be found in the
! GCC texinfo manual.
  
  all ELF targets (SVR4, Solaris 2, etc.)
  =======================================
  
  C++ support is significantly better on ELF targets if you use the GNU
! linker; duplicate copies of inlines, vtables and template instantiations
! will be discarded automatically.
  
  
  File: gccinstall.info,  Node: Old,  Next: GNU Free Documentation License,  Prev: Specific,  Up: Top
*************** File: gccinstall.info,  Node: Old,  Next
*** 4145,4151 ****
  10 Old installation documentation
  *********************************
  
!    Note most of this information is out of date and superseded by the
  previous chapters of this manual.  It is provided for historical
  reference only, because of a lack of volunteers to merge it into the
  main manual.
--- 4098,4104 ----
  10 Old installation documentation
  *********************************
  
! Note most of this information is out of date and superseded by the
  previous chapters of this manual.  It is provided for historical
  reference only, because of a lack of volunteers to merge it into the
  main manual.
*************** main manual.
*** 4159,4172 ****
    1. If you have chosen a configuration for GCC which requires other GNU
       tools (such as GAS or the GNU linker) instead of the standard
       system tools, install the required tools in the build directory
!      under the names `as', `ld' or whatever is appropriate.
  
       Alternatively, you can do subsequent compilation using a value of
!      the `PATH' environment variable such that the necessary GNU tools
       come before the standard system tools.
  
    2. Specify the host, build and target machine configurations.  You do
!      this when you run the `configure' script.
  
       The "build" machine is the system which you are using, the "host"
       machine is the system where you want to run the resulting compiler
--- 4112,4125 ----
    1. If you have chosen a configuration for GCC which requires other GNU
       tools (such as GAS or the GNU linker) instead of the standard
       system tools, install the required tools in the build directory
!      under the names 'as', 'ld' or whatever is appropriate.
  
       Alternatively, you can do subsequent compilation using a value of
!      the 'PATH' environment variable such that the necessary GNU tools
       come before the standard system tools.
  
    2. Specify the host, build and target machine configurations.  You do
!      this when you run the 'configure' script.
  
       The "build" machine is the system which you are using, the "host"
       machine is the system where you want to run the resulting compiler
*************** main manual.
*** 4175,4188 ****
  
       If you are building a compiler to produce code for the machine it
       runs on (a native compiler), you normally do not need to specify
!      any operands to `configure'; it will try to guess the type of
       machine you are on and use that as the build, host and target
       machines.  So you don't need to specify a configuration when
!      building a native compiler unless `configure' cannot figure out
       what your configuration is or guesses wrong.
  
       In those cases, specify the build machine's "configuration name"
!      with the `--host' option; the host and target will default to be
       the same as the host machine.
  
       Here is an example:
--- 4128,4141 ----
  
       If you are building a compiler to produce code for the machine it
       runs on (a native compiler), you normally do not need to specify
!      any operands to 'configure'; it will try to guess the type of
       machine you are on and use that as the build, host and target
       machines.  So you don't need to specify a configuration when
!      building a native compiler unless 'configure' cannot figure out
       what your configuration is or guesses wrong.
  
       In those cases, specify the build machine's "configuration name"
!      with the '--host' option; the host and target will default to be
       the same as the host machine.
  
       Here is an example:
*************** main manual.
*** 4193,4244 ****
       abbreviated.
  
       A canonical configuration name has three parts, separated by
!      dashes.  It looks like this: `CPU-COMPANY-SYSTEM'.  (The three
!      parts may themselves contain dashes; `configure' can figure out
       which dashes serve which purpose.)  For example,
!      `m68k-sun-sunos4.1' specifies a Sun 3.
  
       You can also replace parts of the configuration by nicknames or
!      aliases.  For example, `sun3' stands for `m68k-sun', so
!      `sun3-sunos4.1' is another way to specify a Sun 3.
  
!      You can specify a version number after any of the system types,
!      and some of the CPU types.  In most cases, the version is
!      irrelevant, and will be ignored.  So you might as well specify the
!      version if you know it.
  
       See *note Configurations::, for a list of supported configuration
       names and notes on many of the configurations.  You should check
       the notes in that section before proceeding any further with the
       installation of GCC.
  
- 
  
  File: gccinstall.info,  Node: Configurations,  Up: Old
  
  10.1 Configurations Supported by GCC
  ====================================
  
!    Here are the possible CPU types:
  
       1750a, a29k, alpha, arm, avr, cN, clipper, dsp16xx, elxsi, fr30,
       h8300, hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860,
       i960, ip2k, m32r, m68000, m68k, m88k, mcore, mips, mipsel, mips64,
!      mips64el, mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle,
!      romp, rs6000, sh, sparc, sparclite, sparc64, v850, vax, we32k.
  
     Here are the recognized company names.  As you can see, customary
  abbreviations are used rather than the longer official names.
  
       acorn, alliant, altos, apollo, apple, att, bull, cbm, convergent,
!      convex, crds, dec, dg, dolphin, elxsi, encore, harris, hitachi,
!      hp, ibm, intergraph, isi, mips, motorola, ncr, next, ns, omron,
!      plexus, sequent, sgi, sony, sun, tti, unicom, wrs.
  
     The company name is meaningful only to disambiguate when the rest of
! the information supplied is insufficient.  You can omit it, writing
! just `CPU-SYSTEM', if it is not needed.  For example, `vax-ultrix4.2'
! is equivalent to `vax-dec-ultrix4.2'.
  
     Here is a list of system types:
  
--- 4146,4196 ----
       abbreviated.
  
       A canonical configuration name has three parts, separated by
!      dashes.  It looks like this: 'CPU-COMPANY-SYSTEM'.  (The three
!      parts may themselves contain dashes; 'configure' can figure out
       which dashes serve which purpose.)  For example,
!      'm68k-sun-sunos4.1' specifies a Sun 3.
  
       You can also replace parts of the configuration by nicknames or
!      aliases.  For example, 'sun3' stands for 'm68k-sun', so
!      'sun3-sunos4.1' is another way to specify a Sun 3.
  
!      You can specify a version number after any of the system types, and
!      some of the CPU types.  In most cases, the version is irrelevant,
!      and will be ignored.  So you might as well specify the version if
!      you know it.
  
       See *note Configurations::, for a list of supported configuration
       names and notes on many of the configurations.  You should check
       the notes in that section before proceeding any further with the
       installation of GCC.
  
  
  File: gccinstall.info,  Node: Configurations,  Up: Old
  
  10.1 Configurations Supported by GCC
  ====================================
  
! Here are the possible CPU types:
  
       1750a, a29k, alpha, arm, avr, cN, clipper, dsp16xx, elxsi, fr30,
       h8300, hppa1.0, hppa1.1, i370, i386, i486, i586, i686, i786, i860,
       i960, ip2k, m32r, m68000, m68k, m88k, mcore, mips, mipsel, mips64,
!      mips64el, mn10200, mn10300, ns32k, pdp11, powerpc, powerpcle, romp,
!      rs6000, sh, sparc, sparclite, sparc64, v850, vax, we32k.
  
     Here are the recognized company names.  As you can see, customary
  abbreviations are used rather than the longer official names.
  
       acorn, alliant, altos, apollo, apple, att, bull, cbm, convergent,
!      convex, crds, dec, dg, dolphin, elxsi, encore, harris, hitachi, hp,
!      ibm, intergraph, isi, mips, motorola, ncr, next, ns, omron, plexus,
!      sequent, sgi, sony, sun, tti, unicom, wrs.
  
     The company name is meaningful only to disambiguate when the rest of
! the information supplied is insufficient.  You can omit it, writing just
! 'CPU-SYSTEM', if it is not needed.  For example, 'vax-ultrix4.2' is
! equivalent to 'vax-dec-ultrix4.2'.
  
     Here is a list of system types:
  
*************** is equivalent to `vax-dec-ultrix4.2'.
*** 4250,4278 ****
       sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta, vxworks,
       winnt, xenix.
  
! You can omit the system type; then `configure' guesses the operating
  system from the CPU and company.
  
     You can add a version number to the system type; this may or may not
! make a difference.  For example, you can write `bsd4.3' or `bsd4.4' to
  distinguish versions of BSD.  In practice, the version number is most
! needed for `sysv3' and `sysv4', which are often treated differently.
  
!    `linux-gnu' is the canonical name for the GNU/Linux target; however
! GCC will also accept `linux'.  The version of the kernel in use is not
! relevant on these systems.  A suffix such as `libc1' or `aout'
  distinguishes major versions of the C library; all of the suffixed
  versions are obsolete.
  
!    If you specify an impossible combination such as `i860-dg-vms', then
! you may get an error message from `configure', or it may ignore part of
! the information and do the best it can with the rest.  `configure'
  always prints the canonical name for the alternative that it used.  GCC
  does not support all possible alternatives.
  
     Often a particular model of machine has a name.  Many machine names
  are recognized as aliases for CPU/company combinations.  Thus, the
! machine name `sun3', mentioned above, is an alias for `m68k-sun'.
  Sometimes we accept a company name as a machine name, when the name is
  popularly used for a particular machine.  Here is a table of the known
  machine names:
--- 4202,4230 ----
       sysv, udi, ultrix, unicos, uniplus, unos, vms, vsta, vxworks,
       winnt, xenix.
  
! You can omit the system type; then 'configure' guesses the operating
  system from the CPU and company.
  
     You can add a version number to the system type; this may or may not
! make a difference.  For example, you can write 'bsd4.3' or 'bsd4.4' to
  distinguish versions of BSD.  In practice, the version number is most
! needed for 'sysv3' and 'sysv4', which are often treated differently.
  
!    'linux-gnu' is the canonical name for the GNU/Linux target; however
! GCC will also accept 'linux'.  The version of the kernel in use is not
! relevant on these systems.  A suffix such as 'libc1' or 'aout'
  distinguishes major versions of the C library; all of the suffixed
  versions are obsolete.
  
!    If you specify an impossible combination such as 'i860-dg-vms', then
! you may get an error message from 'configure', or it may ignore part of
! the information and do the best it can with the rest.  'configure'
  always prints the canonical name for the alternative that it used.  GCC
  does not support all possible alternatives.
  
     Often a particular model of machine has a name.  Many machine names
  are recognized as aliases for CPU/company combinations.  Thus, the
! machine name 'sun3', mentioned above, is an alias for 'm68k-sun'.
  Sometimes we accept a company name as a machine name, when the name is
  popularly used for a particular machine.  Here is a table of the known
  machine names:
*************** machine names:
*** 4282,4289 ****
       encore, fx2800, gmicro, hp7NN, hp8NN, hp9k2NN, hp9k3NN, hp9k7NN,
       hp9k8NN, iris4d, iris, isi68, m3230, magnum, merlin, miniframe,
       mmax, news-3600, news800, news, next, pbd, pc532, pmax, powerpc,
!      powerpcle, ps2, risc-news, rtpc, sun2, sun386i, sun386, sun3,
!      sun4, symmetry, tower-32, tower.
  
  Remember that a machine name specifies both the cpu type and the company
  name.
--- 4234,4241 ----
       encore, fx2800, gmicro, hp7NN, hp8NN, hp9k2NN, hp9k3NN, hp9k7NN,
       hp9k8NN, iris4d, iris, isi68, m3230, magnum, merlin, miniframe,
       mmax, news-3600, news800, news, next, pbd, pc532, pmax, powerpc,
!      powerpcle, ps2, risc-news, rtpc, sun2, sun386i, sun386, sun3, sun4,
!      symmetry, tower-32, tower.
  
  Remember that a machine name specifies both the cpu type and the company
  name.
*************** GNU Free Documentation License
*** 4297,4303 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 4249,4255 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 4322,4342 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 4274,4294 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 4354,4365 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 4306,4317 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 4370,4396 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 4322,4348 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 4428,4435 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 4380,4387 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 4443,4454 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 4395,4405 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 4456,4495 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 4407,4445 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 4519,4549 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 4469,4498 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 4556,4566 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 4505,4515 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 4569,4583 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 4518,4532 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 4587,4594 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 4536,4543 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 4615,4634 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 4564,4583 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 4673,4680 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 4622,4629 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 4686,4718 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 4635,4667 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 4742,4748 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 4691,4696 ----
*************** notices just after the title page:
*** 4759,4765 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 4707,4713 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 4770,4778 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: gccinstall.info,  Node: Concept Index,  Prev: GNU Free Documentation License,  Up: Top
--- 4718,4726 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: gccinstall.info,  Node: Concept Index,  Prev: GNU Free Documentation License,  Up: Top
*************** Concept Index
*** 4784,4790 ****
  * Menu:
  
  * Binaries:                              Binaries.           (line    6)
! * build_configargs:                      Configuration.      (line 1511)
  * Configuration:                         Configuration.      (line    6)
  * configurations supported by GCC:       Configurations.     (line    6)
  * Downloading GCC:                       Downloading the source.
--- 4732,4738 ----
  * Menu:
  
  * Binaries:                              Binaries.           (line    6)
! * build_configargs:                      Configuration.      (line 1464)
  * Configuration:                         Configuration.      (line    6)
  * configurations supported by GCC:       Configurations.     (line    6)
  * Downloading GCC:                       Downloading the source.
*************** Concept Index
*** 4794,4800 ****
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                               (line    6)
  * Host specific installation:            Specific.           (line    6)
! * host_configargs:                       Configuration.      (line 1515)
  * Installing GCC: Binaries:              Binaries.           (line    6)
  * Installing GCC: Building:              Building.           (line    6)
  * Installing GCC: Configuration:         Configuration.      (line    6)
--- 4742,4748 ----
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                               (line    6)
  * Host specific installation:            Specific.           (line    6)
! * host_configargs:                       Configuration.      (line 1468)
  * Installing GCC: Binaries:              Binaries.           (line    6)
  * Installing GCC: Building:              Building.           (line    6)
  * Installing GCC: Configuration:         Configuration.      (line    6)
*************** Concept Index
*** 4804,4915 ****
  * Specific installation notes:           Specific.           (line    6)
  * Target specific installation:          Specific.           (line    6)
  * Target specific installation notes:    Specific.           (line    6)
! * target_configargs:                     Configuration.      (line 1519)
  * Testing:                               Testing.            (line    6)
  * Testsuite:                             Testing.            (line    6)
  
  
  
  Tag Table:
! Node: Top1747
! Node: Installing GCC2305
! Node: Prerequisites3942
! Node: Downloading the source15061
! Node: Configuration16739
! Ref: with-gnu-as32190
! Ref: with-as33088
! Ref: with-gnu-ld34501
! Ref: WithAixSoname52653
! Ref: AixLdCommand53314
! Node: Building93478
! Node: Testing109387
! Node: Final install117259
! Node: Binaries122573
! Node: Specific123631
! Ref: aarch64-x-x124141
! Ref: alpha-x-x125573
! Ref: alpha-dec-osf51126062
! Ref: amd64-x-solaris210126587
! Ref: arc-x-elf32126690
! Ref: arc-linux-uclibc126866
! Ref: arm-x-eabi127007
! Ref: avr127424
! Ref: bfin128064
! Ref: cr16128306
! Ref: cris128721
! Ref: dos129537
! Ref: epiphany-x-elf129860
! Ref: x-x-freebsd129965
! Ref: ft32-x-elf131802
! Ref: h8300-hms131900
! Ref: hppa-hp-hpux132252
! Ref: hppa-hp-hpux10134623
! Ref: hppa-hp-hpux11135036
! Ref: x-x-linux-gnu140695
! Ref: ix86-x-linux140888
! Ref: ix86-x-solaris210141201
! Ref: ia64-x-linux142660
! Ref: ia64-x-hpux143430
! Ref: x-ibm-aix143985
! Ref: TransferAixShobj147647
! Ref: iq2000-x-elf151458
! Ref: lm32-x-elf151598
! Ref: lm32-x-uclinux151702
! Ref: m32c-x-elf151830
! Ref: m32r-x-elf151932
! Ref: m68k-x-x152034
! Ref: m68k-x-uclinux153072
! Ref: mep-x-elf153318
! Ref: microblaze-x-elf153428
! Ref: mips-x-x153547
! Ref: mips-sgi-irix5155943
! Ref: mips-sgi-irix6156023
! Ref: moxie-x-elf156210
! Ref: msp430-x-elf156257
! Ref: nds32le-x-elf156360
! Ref: nds32be-x-elf156432
! Ref: nvptx-x-none156501
! Ref: powerpc-x-x157028
! Ref: powerpc-x-darwin157233
! Ref: powerpc-x-elf157727
! Ref: powerpc-x-linux-gnu157812
! Ref: powerpc-x-netbsd157907
! Ref: powerpc-x-eabisim157995
! Ref: powerpc-x-eabi158121
! Ref: powerpcle-x-elf158197
! Ref: powerpcle-x-eabisim158289
! Ref: powerpcle-x-eabi158422
! Ref: rl78-x-elf158505
! Ref: rx-x-elf158611
! Ref: s390-x-linux158810
! Ref: s390x-x-linux158882
! Ref: s390x-ibm-tpf158969
! Ref: x-x-solaris2159100
! Ref: sparc-x-x163117
! Ref: sparc-sun-solaris2163619
! Ref: sparc-sun-solaris210164759
! Ref: sparc-x-linux165135
! Ref: sparc64-x-solaris2165360
! Ref: sparcv9-x-solaris2165693
! Ref: c6x-x-x165780
! Ref: tilegx-*-linux165871
! Ref: tilegxbe-*-linux166013
! Ref: tilepro-*-linux166156
! Ref: visium-x-elf166277
! Ref: x-x-vxworks166385
! Ref: x86-64-x-x167907
! Ref: x86-64-x-solaris210168235
! Ref: xtensa-x-elf168899
! Ref: xtensa-x-linux169570
! Ref: windows169911
! Ref: x-x-cygwin171848
! Ref: x-x-interix172401
! Ref: x-x-mingw32172710
! Ref: older172936
! Ref: elf175053
! Node: Old175311
! Node: Configurations178448
! Node: GNU Free Documentation License181989
! Node: Concept Index207136
  
  End Tag Table
--- 4752,4863 ----
  * Specific installation notes:           Specific.           (line    6)
  * Target specific installation:          Specific.           (line    6)
  * Target specific installation notes:    Specific.           (line    6)
! * target_configargs:                     Configuration.      (line 1472)
  * Testing:                               Testing.            (line    6)
  * Testsuite:                             Testing.            (line    6)
  
  
  
  Tag Table:
! Node: Top1696
! Node: Installing GCC2254
! Node: Prerequisites3888
! Node: Downloading the source15018
! Node: Configuration16692
! Ref: with-gnu-as32152
! Ref: with-as33047
! Ref: with-gnu-ld34460
! Ref: WithAixSoname52610
! Ref: AixLdCommand53271
! Node: Building93396
! Node: Testing109288
! Node: Final install117150
! Node: Binaries122461
! Node: Specific123515
! Ref: aarch64-x-x124022
! Ref: alpha-x-x125454
! Ref: alpha-dec-osf51125943
! Ref: amd64-x-solaris210126468
! Ref: arc-x-elf32126571
! Ref: arc-linux-uclibc126747
! Ref: arm-x-eabi126888
! Ref: avr127305
! Ref: bfin127944
! Ref: cr16128185
! Ref: cris128601
! Ref: dos129416
! Ref: epiphany-x-elf129739
! Ref: x-x-freebsd129844
! Ref: ft32-x-elf131680
! Ref: h8300-hms131778
! Ref: hppa-hp-hpux132130
! Ref: hppa-hp-hpux10134502
! Ref: hppa-hp-hpux11134915
! Ref: x-x-linux-gnu140574
! Ref: ix86-x-linux140767
! Ref: ix86-x-solaris210141080
! Ref: ia64-x-linux142539
! Ref: ia64-x-hpux143309
! Ref: x-ibm-aix143864
! Ref: TransferAixShobj147526
! Ref: iq2000-x-elf151336
! Ref: lm32-x-elf151476
! Ref: lm32-x-uclinux151580
! Ref: m32c-x-elf151708
! Ref: m32r-x-elf151810
! Ref: m68k-x-x151912
! Ref: m68k-x-uclinux152950
! Ref: mep-x-elf153195
! Ref: microblaze-x-elf153305
! Ref: mips-x-x153424
! Ref: mips-sgi-irix5155818
! Ref: mips-sgi-irix6155898
! Ref: moxie-x-elf156085
! Ref: msp430-x-elf156132
! Ref: nds32le-x-elf156235
! Ref: nds32be-x-elf156307
! Ref: nvptx-x-none156376
! Ref: powerpc-x-x156903
! Ref: powerpc-x-darwin157108
! Ref: powerpc-x-elf157602
! Ref: powerpc-x-linux-gnu157687
! Ref: powerpc-x-netbsd157782
! Ref: powerpc-x-eabisim157870
! Ref: powerpc-x-eabi157996
! Ref: powerpcle-x-elf158072
! Ref: powerpcle-x-eabisim158164
! Ref: powerpcle-x-eabi158297
! Ref: rl78-x-elf158380
! Ref: rx-x-elf158486
! Ref: s390-x-linux158685
! Ref: s390x-x-linux158757
! Ref: s390x-ibm-tpf158844
! Ref: x-x-solaris2158975
! Ref: sparc-x-x162991
! Ref: sparc-sun-solaris2163493
! Ref: sparc-sun-solaris210164632
! Ref: sparc-x-linux165007
! Ref: sparc64-x-solaris2165232
! Ref: sparcv9-x-solaris2165565
! Ref: c6x-x-x165652
! Ref: tilegx-*-linux165744
! Ref: tilegxbe-*-linux165886
! Ref: tilepro-*-linux166029
! Ref: visium-x-elf166150
! Ref: x-x-vxworks166258
! Ref: x86-64-x-x167781
! Ref: x86-64-x-solaris210168109
! Ref: xtensa-x-elf168773
! Ref: xtensa-x-linux169444
! Ref: windows169785
! Ref: x-x-cygwin171718
! Ref: x-x-interix172271
! Ref: x-x-mingw32172579
! Ref: older172805
! Ref: elf174922
! Node: Old175180
! Node: Configurations178313
! Node: GNU Free Documentation License181851
! Node: Concept Index206979
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/doc/gccint.info gcc-6.5.0/gcc/doc/gccint.info
*** gcc-6.4.0/gcc/doc/gccint.info	Tue Jul  4 09:27:46 2017
--- gcc-6.5.0/gcc/doc/gccint.info	Fri Oct 26 10:07:37 2018
***************
*** 1,5 ****
! This is doc/gccint.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/doc/gccint.texi.
  
  Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
--- 1,4 ----
! This is gccint.info, produced by makeinfo version 6.4 from gccint.texi.
  
  Copyright (C) 1988-2017 Free Software Foundation, Inc.
  
*************** Free Documentation License".
*** 17,30 ****
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * gccint: (gccint).            Internals of the GNU Compiler Collection.
  END-INFO-DIR-ENTRY
   This file documents the internals of the GNU compilers.
  
   Copyright (C) 1988-2017 Free Software Foundation, Inc.
--- 16,29 ----
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU software.
! Copies published by the Free Software Foundation raise funds for GNU
! development.
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * gccint: (gccint).            Internals of the GNU Compiler Collection.
  END-INFO-DIR-ENTRY
+ 
   This file documents the internals of the GNU compilers.
  
   Copyright (C) 1988-2017 Free Software Foundation, Inc.
*************** Free Documentation License".
*** 43,52 ****
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  
  
  File: gccint.info,  Node: Top,  Next: Contributing,  Up: (DIR)
--- 42,50 ----
  
   (b) The FSF's Back-Cover Text is:
  
!  You have freedom to copy and modify this GNU Manual, like GNU software.
! Copies published by the Free Software Foundation raise funds for GNU
! development.
  
  
  File: gccint.info,  Node: Top,  Next: Contributing,  Up: (DIR)
*************** Introduction
*** 56,64 ****
  
  This manual documents the internals of the GNU compilers, including how
  to port them to new targets and some information about how to write
! front ends for new languages.  It corresponds to the compilers
! (GCC) version 6.4.0.  The use of the GNU compilers is documented in a
! separate manual.  *Note Introduction: (gcc)Top.
  
   This manual is mainly a reference manual rather than a tutorial.  It
  discusses how to contribute to GCC (*note Contributing::), the
--- 54,62 ----
  
  This manual documents the internals of the GNU compilers, including how
  to port them to new targets and some information about how to write
! front ends for new languages.  It corresponds to the compilers (GCC)
! version 6.5.0.  The use of the GNU compilers is documented in a separate
! manual.  *Note Introduction: (gcc)Top.
  
   This manual is mainly a reference manual rather than a tutorial.  It
  discusses how to contribute to GCC (*note Contributing::), the
*************** GCC front ends, and how support for a ta
*** 71,77 ****
  GCC.
  
   Additional tutorial information is linked to from
! `http://gcc.gnu.org/readings.html'.
  
  * Menu:
  
--- 69,75 ----
  GCC.
  
   Additional tutorial information is linked to from
! <http://gcc.gnu.org/readings.html>.
  
  * Menu:
  
*************** GCC.
*** 92,100 ****
  * Loop Analysis and Representation:: Analysis and representation of loops
  * Machine Desc::    How to write machine description instruction patterns.
  * Target Macros::   How to write the machine description C macros and functions.
! * Host Config::     Writing the `xm-MACHINE.h' file.
! * Fragments::       Writing the `t-TARGET' and `x-HOST' files.
! * Collect2::        How `collect2' works; how it finds `ld'.
  * Header Dirs::     Understanding the standard header file directories.
  * Type Information:: GCC's memory management; generating type information.
  * Plugins::         Extending the compiler with plugins.
--- 90,98 ----
  * Loop Analysis and Representation:: Analysis and representation of loops
  * Machine Desc::    How to write machine description instruction patterns.
  * Target Macros::   How to write the machine description C macros and functions.
! * Host Config::     Writing the 'xm-MACHINE.h' file.
! * Fragments::       Writing the 't-TARGET' and 'x-HOST' files.
! * Collect2::        How 'collect2' works; how it finds 'ld'.
  * Header Dirs::     Understanding the standard header file directories.
  * Type Information:: GCC's memory management; generating type information.
  * Plugins::         Extending the compiler with plugins.
*************** GCC.
*** 113,137 ****
  * Concept Index::   Index of concepts and symbol names.
  
  
! File: gccint.info,  Node: Contributing,  Next: Portability,  Prev: Top,  Up: Top
  
  1 Contributing to GCC Development
  *********************************
  
  If you would like to help pretest GCC releases to assure they work well,
  current development sources are available by SVN (see
! `http://gcc.gnu.org/svn.html').  Source and binary snapshots are also
! available for FTP; see `http://gcc.gnu.org/snapshots.html'.
  
   If you would like to work on improvements to GCC, please read the
  advice at these URLs:
  
!      `http://gcc.gnu.org/contribute.html'
!      `http://gcc.gnu.org/contributewhy.html'
  
  for information on how to make useful contributions and avoid
  duplication of effort.  Suggested projects are listed at
! `http://gcc.gnu.org/projects/'.
  
  
  File: gccint.info,  Node: Portability,  Next: Interface,  Prev: Contributing,  Up: Top
--- 111,135 ----
  * Concept Index::   Index of concepts and symbol names.
  
  
! File: gccint.info,  Node: Contributing,  Next: Portability,  Up: Top
  
  1 Contributing to GCC Development
  *********************************
  
  If you would like to help pretest GCC releases to assure they work well,
  current development sources are available by SVN (see
! <http://gcc.gnu.org/svn.html>).  Source and binary snapshots are also
! available for FTP; see <http://gcc.gnu.org/snapshots.html>.
  
   If you would like to work on improvements to GCC, please read the
  advice at these URLs:
  
!      <http://gcc.gnu.org/contribute.html>
!      <http://gcc.gnu.org/contributewhy.html>
  
  for information on how to make useful contributions and avoid
  duplication of effort.  Suggested projects are listed at
! <http://gcc.gnu.org/projects/>.
  
  
  File: gccint.info,  Node: Portability,  Next: Interface,  Prev: Contributing,  Up: Top
*************** File: gccint.info,  Node: Portability,
*** 139,158 ****
  2 GCC and Portability
  *********************
  
! GCC itself aims to be portable to any machine where `int' is at least a
  32-bit type.  It aims to target machines with a flat (non-segmented)
  byte addressed data address space (the code address space can be
! separate).  Target ABIs may have 8, 16, 32 or 64-bit `int' type.  `char'
  can be wider than 8 bits.
  
   GCC gets most of the information about the target machine from a
  machine description which gives an algebraic formula for each of the
  machine's instructions.  This is a very clean way to describe the
  target.  But when the compiler needs information that is difficult to
! express in this fashion, ad-hoc parameters have been defined for
! machine descriptions.  The purpose of portability is to reduce the
! total work needed on the compiler; it was not of interest for its own
! sake.
  
   GCC does not contain machine dependent code, but it does contain code
  that depends on machine parameters such as endianness (whether the most
--- 137,155 ----
  2 GCC and Portability
  *********************
  
! GCC itself aims to be portable to any machine where 'int' is at least a
  32-bit type.  It aims to target machines with a flat (non-segmented)
  byte addressed data address space (the code address space can be
! separate).  Target ABIs may have 8, 16, 32 or 64-bit 'int' type.  'char'
  can be wider than 8 bits.
  
   GCC gets most of the information about the target machine from a
  machine description which gives an algebraic formula for each of the
  machine's instructions.  This is a very clean way to describe the
  target.  But when the compiler needs information that is difficult to
! express in this fashion, ad-hoc parameters have been defined for machine
! descriptions.  The purpose of portability is to reduce the total work
! needed on the compiler; it was not of interest for its own sake.
  
   GCC does not contain machine dependent code, but it does contain code
  that depends on machine parameters such as endianness (whether the most
*************** word) and the availability of autoincrem
*** 161,172 ****
  RTL-generation pass, it is often necessary to have multiple strategies
  for generating code for a particular kind of syntax tree, strategies
  that are usable for different combinations of parameters.  Often, not
! all possible cases have been addressed, but only the common ones or
! only the ones that have been encountered.  As a result, a new target
! may require additional strategies.  You will know if this happens
! because the compiler will call `abort'.  Fortunately, the new
! strategies can be added in a machine-independent fashion, and will
! affect only the target machines that need them.
  
  
  File: gccint.info,  Node: Interface,  Next: Libgcc,  Prev: Portability,  Up: Top
--- 158,169 ----
  RTL-generation pass, it is often necessary to have multiple strategies
  for generating code for a particular kind of syntax tree, strategies
  that are usable for different combinations of parameters.  Often, not
! all possible cases have been addressed, but only the common ones or only
! the ones that have been encountered.  As a result, a new target may
! require additional strategies.  You will know if this happens because
! the compiler will call 'abort'.  Fortunately, the new strategies can be
! added in a machine-independent fashion, and will affect only the target
! machines that need them.
  
  
  File: gccint.info,  Node: Interface,  Next: Libgcc,  Prev: Portability,  Up: Top
*************** returning such types cannot be called fr
*** 184,195 ****
  vice versa.  This does not cause trouble often because few Unix library
  routines return structures or unions.
  
!  GCC code returns structures and unions that are 1, 2, 4 or 8 bytes
! long in the same registers used for `int' or `double' return values.
! (GCC typically allocates variables of such types in registers also.)
  Structures and unions of other sizes are returned by storing them into
  an address passed by the caller (usually in a register).  The target
! hook `TARGET_STRUCT_VALUE_RTX' tells GCC where to pass this address.
  
   By contrast, PCC on most target machines returns structures and unions
  of any size by copying the data into an area of static storage, and then
--- 181,192 ----
  vice versa.  This does not cause trouble often because few Unix library
  routines return structures or unions.
  
!  GCC code returns structures and unions that are 1, 2, 4 or 8 bytes long
! in the same registers used for 'int' or 'double' return values.  (GCC
! typically allocates variables of such types in registers also.)
  Structures and unions of other sizes are returned by storing them into
  an address passed by the caller (usually in a register).  The target
! hook 'TARGET_STRUCT_VALUE_RTX' tells GCC where to pass this address.
  
   By contrast, PCC on most target machines returns structures and unions
  of any size by copying the data into an area of static storage, and then
*************** are passed "by invisible reference".  Th
*** 220,231 ****
  stored in memory, and the address of the memory location is passed to
  the subroutine.
  
!  If you use `longjmp', beware of automatic variables.  ISO C says that
! automatic variables that are not declared `volatile' have undefined
! values after a `longjmp'.  And this is all GCC promises to do, because
! it is very difficult to restore register variables correctly, and one
! of GCC's features is that it can put variables in registers without
! your asking it to.
  
  
  File: gccint.info,  Node: Libgcc,  Next: Languages,  Prev: Interface,  Up: Top
--- 217,228 ----
  stored in memory, and the address of the memory location is passed to
  the subroutine.
  
!  If you use 'longjmp', beware of automatic variables.  ISO C says that
! automatic variables that are not declared 'volatile' have undefined
! values after a 'longjmp'.  And this is all GCC promises to do, because
! it is very difficult to restore register variables correctly, and one of
! GCC's features is that it can put variables in registers without your
! asking it to.
  
  
  File: gccint.info,  Node: Libgcc,  Next: Languages,  Prev: Interface,  Up: Top
*************** File: gccint.info,  Node: Libgcc,  Next:
*** 233,266 ****
  4 The GCC low-level runtime library
  ***********************************
  
! GCC provides a low-level runtime library, `libgcc.a' or `libgcc_s.so.1'
  on some platforms.  GCC generates calls to routines in this library
  automatically, whenever it needs to perform some operation that is too
  complicated to emit inline code for.
  
!  Most of the routines in `libgcc' handle arithmetic operations that the
  target processor cannot perform directly.  This includes integer
  multiply and divide on some machines, and all floating-point and
! fixed-point operations on other machines.  `libgcc' also includes
  routines for exception handling, and a handful of miscellaneous
  operations.
  
   Some of these routines can be defined in mostly machine-independent C.
! Others must be hand-written in assembly language for each processor
! that needs them.
  
!  GCC will also generate calls to C library routines, such as `memcpy'
! and `memset', in some cases.  The set of routines that GCC may possibly
! use is documented in *note Other Builtins: (gcc)Other Builtins.
  
   These routines take arguments and return values of a specific machine
  mode, not a specific C type.  *Note Machine Modes::, for an explanation
  of this concept.  For illustrative purposes, in this chapter the
! floating point type `float' is assumed to correspond to `SFmode';
! `double' to `DFmode'; and `long double' to both `TFmode' and `XFmode'.
! Similarly, the integer types `int' and `unsigned int' correspond to
! `SImode'; `long' and `unsigned long' to `DImode'; and `long long' and
! `unsigned long long' to `TImode'.
  
  * Menu:
  
--- 230,263 ----
  4 The GCC low-level runtime library
  ***********************************
  
! GCC provides a low-level runtime library, 'libgcc.a' or 'libgcc_s.so.1'
  on some platforms.  GCC generates calls to routines in this library
  automatically, whenever it needs to perform some operation that is too
  complicated to emit inline code for.
  
!  Most of the routines in 'libgcc' handle arithmetic operations that the
  target processor cannot perform directly.  This includes integer
  multiply and divide on some machines, and all floating-point and
! fixed-point operations on other machines.  'libgcc' also includes
  routines for exception handling, and a handful of miscellaneous
  operations.
  
   Some of these routines can be defined in mostly machine-independent C.
! Others must be hand-written in assembly language for each processor that
! needs them.
  
!  GCC will also generate calls to C library routines, such as 'memcpy'
! and 'memset', in some cases.  The set of routines that GCC may possibly
! use is documented in *note (gcc)Other Builtins::.
  
   These routines take arguments and return values of a specific machine
  mode, not a specific C type.  *Note Machine Modes::, for an explanation
  of this concept.  For illustrative purposes, in this chapter the
! floating point type 'float' is assumed to correspond to 'SFmode';
! 'double' to 'DFmode'; and 'long double' to both 'TFmode' and 'XFmode'.
! Similarly, the integer types 'int' and 'unsigned int' correspond to
! 'SImode'; 'long' and 'unsigned long' to 'DImode'; and 'long long' and
! 'unsigned long long' to 'TImode'.
  
  * Menu:
  
*************** hardware support for arithmetic operatio
*** 323,330 ****
  
   -- Runtime Function: unsigned int __udivsi3 (unsigned int A, unsigned
            int B)
!  -- Runtime Function: unsigned long __udivdi3 (unsigned long A,
!           unsigned long B)
   -- Runtime Function: unsigned long long __udivti3 (unsigned long long
            A, unsigned long long B)
       These functions return the quotient of the unsigned division of A
--- 320,327 ----
  
   -- Runtime Function: unsigned int __udivsi3 (unsigned int A, unsigned
            int B)
!  -- Runtime Function: unsigned long __udivdi3 (unsigned long A, unsigned
!           long B)
   -- Runtime Function: unsigned long long __udivti3 (unsigned long long
            A, unsigned long long B)
       These functions return the quotient of the unsigned division of A
*************** hardware support for arithmetic operatio
*** 340,347 ****
  
   -- Runtime Function: unsigned int __umodsi3 (unsigned int A, unsigned
            int B)
!  -- Runtime Function: unsigned long __umoddi3 (unsigned long A,
!           unsigned long B)
   -- Runtime Function: unsigned long long __umodti3 (unsigned long long
            A, unsigned long long B)
       These functions return the remainder of the unsigned division of A
--- 337,344 ----
  
   -- Runtime Function: unsigned int __umodsi3 (unsigned int A, unsigned
            int B)
!  -- Runtime Function: unsigned long __umoddi3 (unsigned long A, unsigned
!           long B)
   -- Runtime Function: unsigned long long __umodti3 (unsigned long long
            A, unsigned long long B)
       These functions return the remainder of the unsigned division of A
*************** result using either signed or unsigned c
*** 364,380 ****
       and if A and B are equal they return 1.
  
   -- Runtime Function: int __ucmpdi2 (unsigned long A, unsigned long B)
!  -- Runtime Function: int __ucmpti2 (unsigned long long A, unsigned
!           long long B)
!      These functions perform an unsigned comparison of A and B.  If A
!      is less than B, they return 0; if A is greater than B, they return
!      2; and if A and B are equal they return 1.
  
  4.1.3 Trapping arithmetic functions
  -----------------------------------
  
  The following functions implement trapping arithmetic.  These functions
! call the libc function `abort' upon signed arithmetic overflow.
  
   -- Runtime Function: int __absvsi2 (int A)
   -- Runtime Function: long __absvdi2 (long A)
--- 361,377 ----
       and if A and B are equal they return 1.
  
   -- Runtime Function: int __ucmpdi2 (unsigned long A, unsigned long B)
!  -- Runtime Function: int __ucmpti2 (unsigned long long A, unsigned long
!           long B)
!      These functions perform an unsigned comparison of A and B.  If A is
!      less than B, they return 0; if A is greater than B, they return 2;
!      and if A and B are equal they return 1.
  
  4.1.3 Trapping arithmetic functions
  -----------------------------------
  
  The following functions implement trapping arithmetic.  These functions
! call the libc function 'abort' upon signed arithmetic overflow.
  
   -- Runtime Function: int __absvsi2 (int A)
   -- Runtime Function: long __absvdi2 (long A)
*************** call the libc function `abort' upon sign
*** 382,401 ****
  
   -- Runtime Function: int __addvsi3 (int A, int B)
   -- Runtime Function: long __addvdi3 (long A, long B)
!      These functions return the sum of A and B; that is `A + B'.
  
   -- Runtime Function: int __mulvsi3 (int A, int B)
   -- Runtime Function: long __mulvdi3 (long A, long B)
!      The functions return the product of A and B; that is `A * B'.
  
   -- Runtime Function: int __negvsi2 (int A)
   -- Runtime Function: long __negvdi2 (long A)
!      These functions return the negation of A; that is `-A'.
  
   -- Runtime Function: int __subvsi3 (int A, int B)
   -- Runtime Function: long __subvdi3 (long A, long B)
!      These functions return the difference between B and A; that is `A
!      - B'.
  
  4.1.4 Bit operations
  --------------------
--- 379,398 ----
  
   -- Runtime Function: int __addvsi3 (int A, int B)
   -- Runtime Function: long __addvdi3 (long A, long B)
!      These functions return the sum of A and B; that is 'A + B'.
  
   -- Runtime Function: int __mulvsi3 (int A, int B)
   -- Runtime Function: long __mulvdi3 (long A, long B)
!      The functions return the product of A and B; that is 'A * B'.
  
   -- Runtime Function: int __negvsi2 (int A)
   -- Runtime Function: long __negvdi2 (long A)
!      These functions return the negation of A; that is '-A'.
  
   -- Runtime Function: int __subvsi3 (int A, int B)
   -- Runtime Function: long __subvdi3 (long A, long B)
!      These functions return the difference between B and A; that is 'A -
!      B'.
  
  4.1.4 Bit operations
  --------------------
*************** File: gccint.info,  Node: Soft float lib
*** 443,457 ****
  
  The software floating point library is used on machines which do not
  have hardware support for floating point.  It is also used whenever
! `-msoft-float' is used to disable generation of floating point
  instructions.  (Not all targets support this switch.)
  
   For compatibility with other compilers, the floating point emulation
! routines can be renamed with the `DECLARE_LIBRARY_RENAMES' macro (*note
  Library Calls::).  In this section, the default names are used.
  
!  Presently the library does not support `XFmode', which is used for
! `long double' on some architectures.
  
  4.2.1 Arithmetic functions
  --------------------------
--- 440,454 ----
  
  The software floating point library is used on machines which do not
  have hardware support for floating point.  It is also used whenever
! '-msoft-float' is used to disable generation of floating point
  instructions.  (Not all targets support this switch.)
  
   For compatibility with other compilers, the floating point emulation
! routines can be renamed with the 'DECLARE_LIBRARY_RENAMES' macro (*note
  Library Calls::).  In this section, the default names are used.
  
!  Presently the library does not support 'XFmode', which is used for
! 'long double' on some architectures.
  
  4.2.1 Arithmetic functions
  --------------------------
*************** Library Calls::).  In this section, the
*** 552,559 ****
   -- Runtime Function: unsigned long long __fixunsdfti (double A)
   -- Runtime Function: unsigned long long __fixunstfti (long double A)
   -- Runtime Function: unsigned long long __fixunsxfti (long double A)
!      These functions convert A to an unsigned long long, rounding
!      toward zero.  Negative values all become zero.
  
   -- Runtime Function: float __floatsisf (int I)
   -- Runtime Function: double __floatsidf (int I)
--- 549,556 ----
   -- Runtime Function: unsigned long long __fixunsdfti (double A)
   -- Runtime Function: unsigned long long __fixunstfti (long double A)
   -- Runtime Function: unsigned long long __fixunsxfti (long double A)
!      These functions convert A to an unsigned long long, rounding toward
!      zero.  Negative values all become zero.
  
   -- Runtime Function: float __floatsisf (int I)
   -- Runtime Function: double __floatsidf (int I)
*************** There are two sets of basic comparison f
*** 601,610 ****
   -- Runtime Function: int __cmpdf2 (double A, double B)
   -- Runtime Function: int __cmptf2 (long double A, long double B)
       These functions calculate a <=> b.  That is, if A is less than B,
!      they return -1; if A is greater than B, they return 1; and if A
!      and B are equal they return 0.  If either argument is NaN they
!      return 1, but you should not rely on this; if NaN is a
!      possibility, use one of the higher-level comparison functions.
  
   -- Runtime Function: int __unordsf2 (float A, float B)
   -- Runtime Function: int __unorddf2 (double A, double B)
--- 598,607 ----
   -- Runtime Function: int __cmpdf2 (double A, double B)
   -- Runtime Function: int __cmptf2 (long double A, long double B)
       These functions calculate a <=> b.  That is, if A is less than B,
!      they return -1; if A is greater than B, they return 1; and if A and
!      B are equal they return 0.  If either argument is NaN they return
!      1, but you should not rely on this; if NaN is a possibility, use
!      one of the higher-level comparison functions.
  
   -- Runtime Function: int __unordsf2 (float A, float B)
   -- Runtime Function: int __unorddf2 (double A, double B)
*************** hood, all of these routines are implemen
*** 622,637 ****
           return E;
         return __cmpXf2 (a, b);
  
! where E is a constant chosen to give the proper behavior for NaN.
! Thus, the meaning of the return value is different for each set.  Do
! not rely on this implementation; only the semantics documented below
! are guaranteed.
  
   -- Runtime Function: int __eqsf2 (float A, float B)
   -- Runtime Function: int __eqdf2 (double A, double B)
   -- Runtime Function: int __eqtf2 (long double A, long double B)
!      These functions return zero if neither argument is NaN, and A and
!      B are equal.
  
   -- Runtime Function: int __nesf2 (float A, float B)
   -- Runtime Function: int __nedf2 (double A, double B)
--- 619,634 ----
           return E;
         return __cmpXf2 (a, b);
  
! where E is a constant chosen to give the proper behavior for NaN.  Thus,
! the meaning of the return value is different for each set.  Do not rely
! on this implementation; only the semantics documented below are
! guaranteed.
  
   -- Runtime Function: int __eqsf2 (float A, float B)
   -- Runtime Function: int __eqdf2 (double A, double B)
   -- Runtime Function: int __eqtf2 (long double A, long double B)
!      These functions return zero if neither argument is NaN, and A and B
!      are equal.
  
   -- Runtime Function: int __nesf2 (float A, float B)
   -- Runtime Function: int __nedf2 (double A, double B)
*************** are guaranteed.
*** 672,679 ****
   -- Runtime Function: long double __powixf2 (long double A, int B)
       These functions convert raise A to the power B.
  
!  -- Runtime Function: complex float __mulsc3 (float A, float B, float
!           C, float D)
   -- Runtime Function: complex double __muldc3 (double A, double B,
            double C, double D)
   -- Runtime Function: complex long double __multc3 (long double A, long
--- 669,676 ----
   -- Runtime Function: long double __powixf2 (long double A, int B)
       These functions convert raise A to the power B.
  
!  -- Runtime Function: complex float __mulsc3 (float A, float B, float C,
!           float D)
   -- Runtime Function: complex double __muldc3 (double A, double B,
            double C, double D)
   -- Runtime Function: complex long double __multc3 (long double A, long
*************** are guaranteed.
*** 683,690 ****
       These functions return the product of A + iB and C + iD, following
       the rules of C99 Annex G.
  
!  -- Runtime Function: complex float __divsc3 (float A, float B, float
!           C, float D)
   -- Runtime Function: complex double __divdc3 (double A, double B,
            double C, double D)
   -- Runtime Function: complex long double __divtc3 (long double A, long
--- 680,687 ----
       These functions return the product of A + iB and C + iD, following
       the rules of C99 Annex G.
  
!  -- Runtime Function: complex float __divsc3 (float A, float B, float C,
!           float D)
   -- Runtime Function: complex double __divdc3 (double A, double B,
            double C, double D)
   -- Runtime Function: complex long double __divtc3 (long double A, long
*************** selected at configure time.
*** 883,890 ****
   -- Runtime Function: unsigned long __bid_fixunsdddi (_Decimal64 A)
   -- Runtime Function: unsigned long __dpd_fixunstddi (_Decimal128 A)
   -- Runtime Function: unsigned long __bid_fixunstddi (_Decimal128 A)
!      These functions convert A to an unsigned long.  Negative values
!      all become zero.
  
   -- Runtime Function: _Decimal32 __dpd_floatsisd (int I)
   -- Runtime Function: _Decimal32 __bid_floatsisd (int I)
--- 880,887 ----
   -- Runtime Function: unsigned long __bid_fixunsdddi (_Decimal64 A)
   -- Runtime Function: unsigned long __dpd_fixunstddi (_Decimal128 A)
   -- Runtime Function: unsigned long __bid_fixunstddi (_Decimal128 A)
!      These functions convert A to an unsigned long.  Negative values all
!      become zero.
  
   -- Runtime Function: _Decimal32 __dpd_floatsisd (int I)
   -- Runtime Function: _Decimal32 __bid_floatsisd (int I)
*************** selected at configure time.
*** 910,917 ****
   -- Runtime Function: _Decimal64 __bid_floatunssidd (unsigned int I)
   -- Runtime Function: _Decimal128 __dpd_floatunssitd (unsigned int I)
   -- Runtime Function: _Decimal128 __bid_floatunssitd (unsigned int I)
!      These functions convert I, an unsigned integer, to decimal
!      floating point.
  
   -- Runtime Function: _Decimal32 __dpd_floatunsdisd (unsigned long I)
   -- Runtime Function: _Decimal32 __bid_floatunsdisd (unsigned long I)
--- 907,914 ----
   -- Runtime Function: _Decimal64 __bid_floatunssidd (unsigned int I)
   -- Runtime Function: _Decimal128 __dpd_floatunssitd (unsigned int I)
   -- Runtime Function: _Decimal128 __bid_floatunssitd (unsigned int I)
!      These functions convert I, an unsigned integer, to decimal floating
!      point.
  
   -- Runtime Function: _Decimal32 __dpd_floatunsdisd (unsigned long I)
   -- Runtime Function: _Decimal32 __bid_floatunsdisd (unsigned long I)
*************** hood, all of these routines are implemen
*** 944,953 ****
           return E;
         return __bid_cmpXd2 (a, b);
  
! where E is a constant chosen to give the proper behavior for NaN.
! Thus, the meaning of the return value is different for each set.  Do
! not rely on this implementation; only the semantics documented below
! are guaranteed.
  
   -- Runtime Function: int __dpd_eqsd2 (_Decimal32 A, _Decimal32 B)
   -- Runtime Function: int __bid_eqsd2 (_Decimal32 A, _Decimal32 B)
--- 941,950 ----
           return E;
         return __bid_cmpXd2 (a, b);
  
! where E is a constant chosen to give the proper behavior for NaN.  Thus,
! the meaning of the return value is different for each set.  Do not rely
! on this implementation; only the semantics documented below are
! guaranteed.
  
   -- Runtime Function: int __dpd_eqsd2 (_Decimal32 A, _Decimal32 B)
   -- Runtime Function: int __bid_eqsd2 (_Decimal32 A, _Decimal32 B)
*************** are guaranteed.
*** 955,962 ****
   -- Runtime Function: int __bid_eqdd2 (_Decimal64 A, _Decimal64 B)
   -- Runtime Function: int __dpd_eqtd2 (_Decimal128 A, _Decimal128 B)
   -- Runtime Function: int __bid_eqtd2 (_Decimal128 A, _Decimal128 B)
!      These functions return zero if neither argument is NaN, and A and
!      B are equal.
  
   -- Runtime Function: int __dpd_nesd2 (_Decimal32 A, _Decimal32 B)
   -- Runtime Function: int __bid_nesd2 (_Decimal32 A, _Decimal32 B)
--- 952,959 ----
   -- Runtime Function: int __bid_eqdd2 (_Decimal64 A, _Decimal64 B)
   -- Runtime Function: int __dpd_eqtd2 (_Decimal128 A, _Decimal128 B)
   -- Runtime Function: int __bid_eqtd2 (_Decimal128 A, _Decimal128 B)
!      These functions return zero if neither argument is NaN, and A and B
!      are equal.
  
   -- Runtime Function: int __dpd_nesd2 (_Decimal32 A, _Decimal32 B)
   -- Runtime Function: int __bid_nesd2 (_Decimal32 A, _Decimal32 B)
*************** File: gccint.info,  Node: Fixed-point fr
*** 1012,1031 ****
  The software fixed-point library implements fixed-point fractional
  arithmetic, and is only activated on selected targets.
  
!  For ease of comprehension `fract' is an alias for the `_Fract' type,
! `accum' an alias for `_Accum', and `sat' an alias for `_Sat'.
  
   For illustrative purposes, in this section the fixed-point fractional
! type `short fract' is assumed to correspond to machine mode `QQmode';
! `unsigned short fract' to `UQQmode'; `fract' to `HQmode';
! `unsigned fract' to `UHQmode'; `long fract' to `SQmode';
! `unsigned long fract' to `USQmode'; `long long fract' to `DQmode'; and
! `unsigned long long fract' to `UDQmode'.  Similarly the fixed-point
! accumulator type `short accum' corresponds to `HAmode';
! `unsigned short accum' to `UHAmode'; `accum' to `SAmode';
! `unsigned accum' to `USAmode'; `long accum' to `DAmode';
! `unsigned long accum' to `UDAmode'; `long long accum' to `TAmode'; and
! `unsigned long long accum' to `UTAmode'.
  
  4.4.1 Arithmetic functions
  --------------------------
--- 1009,1028 ----
  The software fixed-point library implements fixed-point fractional
  arithmetic, and is only activated on selected targets.
  
!  For ease of comprehension 'fract' is an alias for the '_Fract' type,
! 'accum' an alias for '_Accum', and 'sat' an alias for '_Sat'.
  
   For illustrative purposes, in this section the fixed-point fractional
! type 'short fract' is assumed to correspond to machine mode 'QQmode';
! 'unsigned short fract' to 'UQQmode'; 'fract' to 'HQmode';
! 'unsigned fract' to 'UHQmode'; 'long fract' to 'SQmode';
! 'unsigned long fract' to 'USQmode'; 'long long fract' to 'DQmode'; and
! 'unsigned long long fract' to 'UDQmode'.  Similarly the fixed-point
! accumulator type 'short accum' corresponds to 'HAmode';
! 'unsigned short accum' to 'UHAmode'; 'accum' to 'SAmode';
! 'unsigned accum' to 'USAmode'; 'long accum' to 'DAmode';
! 'unsigned long accum' to 'UDAmode'; 'long long accum' to 'TAmode'; and
! 'unsigned long long accum' to 'UTAmode'.
  
  4.4.1 Arithmetic functions
  --------------------------
*************** accumulator type `short accum' correspon
*** 1040,1047 ****
            fract A, unsigned short fract B)
   -- Runtime Function: unsigned fract __adduhq3 (unsigned fract A,
            unsigned fract B)
!  -- Runtime Function: unsigned long fract __addusq3 (unsigned long
!           fract A, unsigned long fract B)
   -- Runtime Function: unsigned long long fract __addudq3 (unsigned long
            long fract A, unsigned long long fract B)
   -- Runtime Function: short accum __addha3 (short accum A, short accum
--- 1037,1044 ----
            fract A, unsigned short fract B)
   -- Runtime Function: unsigned fract __adduhq3 (unsigned fract A,
            unsigned fract B)
!  -- Runtime Function: unsigned long fract __addusq3 (unsigned long fract
!           A, unsigned long fract B)
   -- Runtime Function: unsigned long long fract __addudq3 (unsigned long
            long fract A, unsigned long long fract B)
   -- Runtime Function: short accum __addha3 (short accum A, short accum
*************** accumulator type `short accum' correspon
*** 1054,1073 ****
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __addusa3 (unsigned accum A,
            unsigned accum B)
!  -- Runtime Function: unsigned long accum __adduda3 (unsigned long
!           accum A, unsigned long accum B)
   -- Runtime Function: unsigned long long accum __adduta3 (unsigned long
            long accum A, unsigned long long accum B)
       These functions return the sum of A and B.
  
!  -- Runtime Function: short fract __ssaddqq3 (short fract A, short
!           fract B)
   -- Runtime Function: fract __ssaddhq3 (fract A, fract B)
   -- Runtime Function: long fract __ssaddsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __ssadddq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __ssaddha3 (short accum A, short
!           accum B)
   -- Runtime Function: accum __ssaddsa3 (accum A, accum B)
   -- Runtime Function: long accum __ssaddda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __ssaddta3 (long long accum A,
--- 1051,1070 ----
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __addusa3 (unsigned accum A,
            unsigned accum B)
!  -- Runtime Function: unsigned long accum __adduda3 (unsigned long accum
!           A, unsigned long accum B)
   -- Runtime Function: unsigned long long accum __adduta3 (unsigned long
            long accum A, unsigned long long accum B)
       These functions return the sum of A and B.
  
!  -- Runtime Function: short fract __ssaddqq3 (short fract A, short fract
!           B)
   -- Runtime Function: fract __ssaddhq3 (fract A, fract B)
   -- Runtime Function: long fract __ssaddsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __ssadddq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __ssaddha3 (short accum A, short accum
!           B)
   -- Runtime Function: accum __ssaddsa3 (accum A, accum B)
   -- Runtime Function: long accum __ssaddda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __ssaddta3 (long long accum A,
*************** accumulator type `short accum' correspon
*** 1102,1109 ****
            fract A, unsigned short fract B)
   -- Runtime Function: unsigned fract __subuhq3 (unsigned fract A,
            unsigned fract B)
!  -- Runtime Function: unsigned long fract __subusq3 (unsigned long
!           fract A, unsigned long fract B)
   -- Runtime Function: unsigned long long fract __subudq3 (unsigned long
            long fract A, unsigned long long fract B)
   -- Runtime Function: short accum __subha3 (short accum A, short accum
--- 1099,1106 ----
            fract A, unsigned short fract B)
   -- Runtime Function: unsigned fract __subuhq3 (unsigned fract A,
            unsigned fract B)
!  -- Runtime Function: unsigned long fract __subusq3 (unsigned long fract
!           A, unsigned long fract B)
   -- Runtime Function: unsigned long long fract __subudq3 (unsigned long
            long fract A, unsigned long long fract B)
   -- Runtime Function: short accum __subha3 (short accum A, short accum
*************** accumulator type `short accum' correspon
*** 1116,1141 ****
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __subusa3 (unsigned accum A,
            unsigned accum B)
!  -- Runtime Function: unsigned long accum __subuda3 (unsigned long
!           accum A, unsigned long accum B)
   -- Runtime Function: unsigned long long accum __subuta3 (unsigned long
            long accum A, unsigned long long accum B)
!      These functions return the difference of A and B; that is, `A - B'.
  
!  -- Runtime Function: short fract __sssubqq3 (short fract A, short
!           fract B)
   -- Runtime Function: fract __sssubhq3 (fract A, fract B)
   -- Runtime Function: long fract __sssubsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __sssubdq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __sssubha3 (short accum A, short
!           accum B)
   -- Runtime Function: accum __sssubsa3 (accum A, accum B)
   -- Runtime Function: long accum __sssubda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __sssubta3 (long long accum A,
            long long accum B)
       These functions return the difference of A and B with signed
!      saturation;  that is, `A - B'.
  
   -- Runtime Function: unsigned short fract __ussubuqq3 (unsigned short
            fract A, unsigned short fract B)
--- 1113,1138 ----
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __subusa3 (unsigned accum A,
            unsigned accum B)
!  -- Runtime Function: unsigned long accum __subuda3 (unsigned long accum
!           A, unsigned long accum B)
   -- Runtime Function: unsigned long long accum __subuta3 (unsigned long
            long accum A, unsigned long long accum B)
!      These functions return the difference of A and B; that is, 'A - B'.
  
!  -- Runtime Function: short fract __sssubqq3 (short fract A, short fract
!           B)
   -- Runtime Function: fract __sssubhq3 (fract A, fract B)
   -- Runtime Function: long fract __sssubsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __sssubdq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __sssubha3 (short accum A, short accum
!           B)
   -- Runtime Function: accum __sssubsa3 (accum A, accum B)
   -- Runtime Function: long accum __sssubda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __sssubta3 (long long accum A,
            long long accum B)
       These functions return the difference of A and B with signed
!      saturation; that is, 'A - B'.
  
   -- Runtime Function: unsigned short fract __ussubuqq3 (unsigned short
            fract A, unsigned short fract B)
*************** accumulator type `short accum' correspon
*** 1154,1160 ****
   -- Runtime Function: unsigned long long accum __ussubuta3 (unsigned
            long long accum A, unsigned long long accum B)
       These functions return the difference of A and B with unsigned
!      saturation;  that is, `A - B'.
  
   -- Runtime Function: short fract __mulqq3 (short fract A, short fract
            B)
--- 1151,1157 ----
   -- Runtime Function: unsigned long long accum __ussubuta3 (unsigned
            long long accum A, unsigned long long accum B)
       These functions return the difference of A and B with unsigned
!      saturation; that is, 'A - B'.
  
   -- Runtime Function: short fract __mulqq3 (short fract A, short fract
            B)
*************** accumulator type `short accum' correspon
*** 1166,1173 ****
            fract A, unsigned short fract B)
   -- Runtime Function: unsigned fract __muluhq3 (unsigned fract A,
            unsigned fract B)
!  -- Runtime Function: unsigned long fract __mulusq3 (unsigned long
!           fract A, unsigned long fract B)
   -- Runtime Function: unsigned long long fract __muludq3 (unsigned long
            long fract A, unsigned long long fract B)
   -- Runtime Function: short accum __mulha3 (short accum A, short accum
--- 1163,1170 ----
            fract A, unsigned short fract B)
   -- Runtime Function: unsigned fract __muluhq3 (unsigned fract A,
            unsigned fract B)
!  -- Runtime Function: unsigned long fract __mulusq3 (unsigned long fract
!           A, unsigned long fract B)
   -- Runtime Function: unsigned long long fract __muludq3 (unsigned long
            long fract A, unsigned long long fract B)
   -- Runtime Function: short accum __mulha3 (short accum A, short accum
*************** accumulator type `short accum' correspon
*** 1180,1199 ****
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __mulusa3 (unsigned accum A,
            unsigned accum B)
!  -- Runtime Function: unsigned long accum __muluda3 (unsigned long
!           accum A, unsigned long accum B)
   -- Runtime Function: unsigned long long accum __muluta3 (unsigned long
            long accum A, unsigned long long accum B)
       These functions return the product of A and B.
  
!  -- Runtime Function: short fract __ssmulqq3 (short fract A, short
!           fract B)
   -- Runtime Function: fract __ssmulhq3 (fract A, fract B)
   -- Runtime Function: long fract __ssmulsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __ssmuldq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __ssmulha3 (short accum A, short
!           accum B)
   -- Runtime Function: accum __ssmulsa3 (accum A, accum B)
   -- Runtime Function: long accum __ssmulda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __ssmulta3 (long long accum A,
--- 1177,1196 ----
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __mulusa3 (unsigned accum A,
            unsigned accum B)
!  -- Runtime Function: unsigned long accum __muluda3 (unsigned long accum
!           A, unsigned long accum B)
   -- Runtime Function: unsigned long long accum __muluta3 (unsigned long
            long accum A, unsigned long long accum B)
       These functions return the product of A and B.
  
!  -- Runtime Function: short fract __ssmulqq3 (short fract A, short fract
!           B)
   -- Runtime Function: fract __ssmulhq3 (fract A, fract B)
   -- Runtime Function: long fract __ssmulsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __ssmuldq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __ssmulha3 (short accum A, short accum
!           B)
   -- Runtime Function: accum __ssmulsa3 (accum A, accum B)
   -- Runtime Function: long accum __ssmulda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __ssmulta3 (long long accum A,
*************** accumulator type `short accum' correspon
*** 1232,1239 ****
   -- Runtime Function: long accum __divda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __divta3 (long long accum A, long
            long accum B)
!      These functions return the quotient of the signed division of A
!      and B.
  
   -- Runtime Function: unsigned short fract __udivuqq3 (unsigned short
            fract A, unsigned short fract B)
--- 1229,1236 ----
   -- Runtime Function: long accum __divda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __divta3 (long long accum A, long
            long accum B)
!      These functions return the quotient of the signed division of A and
!      B.
  
   -- Runtime Function: unsigned short fract __udivuqq3 (unsigned short
            fract A, unsigned short fract B)
*************** accumulator type `short accum' correspon
*** 1241,1273 ****
            unsigned fract B)
   -- Runtime Function: unsigned long fract __udivusq3 (unsigned long
            fract A, unsigned long fract B)
!  -- Runtime Function: unsigned long long fract __udivudq3 (unsigned
!           long long fract A, unsigned long long fract B)
   -- Runtime Function: unsigned short accum __udivuha3 (unsigned short
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __udivusa3 (unsigned accum A,
            unsigned accum B)
   -- Runtime Function: unsigned long accum __udivuda3 (unsigned long
            accum A, unsigned long accum B)
!  -- Runtime Function: unsigned long long accum __udivuta3 (unsigned
!           long long accum A, unsigned long long accum B)
       These functions return the quotient of the unsigned division of A
       and B.
  
!  -- Runtime Function: short fract __ssdivqq3 (short fract A, short
!           fract B)
   -- Runtime Function: fract __ssdivhq3 (fract A, fract B)
   -- Runtime Function: long fract __ssdivsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __ssdivdq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __ssdivha3 (short accum A, short
!           accum B)
   -- Runtime Function: accum __ssdivsa3 (accum A, accum B)
   -- Runtime Function: long accum __ssdivda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __ssdivta3 (long long accum A,
            long long accum B)
!      These functions return the quotient of the signed division of A
!      and B with signed saturation.
  
   -- Runtime Function: unsigned short fract __usdivuqq3 (unsigned short
            fract A, unsigned short fract B)
--- 1238,1270 ----
            unsigned fract B)
   -- Runtime Function: unsigned long fract __udivusq3 (unsigned long
            fract A, unsigned long fract B)
!  -- Runtime Function: unsigned long long fract __udivudq3 (unsigned long
!           long fract A, unsigned long long fract B)
   -- Runtime Function: unsigned short accum __udivuha3 (unsigned short
            accum A, unsigned short accum B)
   -- Runtime Function: unsigned accum __udivusa3 (unsigned accum A,
            unsigned accum B)
   -- Runtime Function: unsigned long accum __udivuda3 (unsigned long
            accum A, unsigned long accum B)
!  -- Runtime Function: unsigned long long accum __udivuta3 (unsigned long
!           long accum A, unsigned long long accum B)
       These functions return the quotient of the unsigned division of A
       and B.
  
!  -- Runtime Function: short fract __ssdivqq3 (short fract A, short fract
!           B)
   -- Runtime Function: fract __ssdivhq3 (fract A, fract B)
   -- Runtime Function: long fract __ssdivsq3 (long fract A, long fract B)
   -- Runtime Function: long long fract __ssdivdq3 (long long fract A,
            long long fract B)
!  -- Runtime Function: short accum __ssdivha3 (short accum A, short accum
!           B)
   -- Runtime Function: accum __ssdivsa3 (accum A, accum B)
   -- Runtime Function: long accum __ssdivda3 (long accum A, long accum B)
   -- Runtime Function: long long accum __ssdivta3 (long long accum A,
            long long accum B)
!      These functions return the quotient of the signed division of A and
!      B with signed saturation.
  
   -- Runtime Function: unsigned short fract __usdivuqq3 (unsigned short
            fract A, unsigned short fract B)
*************** accumulator type `short accum' correspon
*** 1295,1302 ****
   -- Runtime Function: unsigned short fract __neguqq2 (unsigned short
            fract A)
   -- Runtime Function: unsigned fract __neguhq2 (unsigned fract A)
!  -- Runtime Function: unsigned long fract __negusq2 (unsigned long
!           fract A)
   -- Runtime Function: unsigned long long fract __negudq2 (unsigned long
            long fract A)
   -- Runtime Function: short accum __negha2 (short accum A)
--- 1292,1299 ----
   -- Runtime Function: unsigned short fract __neguqq2 (unsigned short
            fract A)
   -- Runtime Function: unsigned fract __neguhq2 (unsigned fract A)
!  -- Runtime Function: unsigned long fract __negusq2 (unsigned long fract
!           A)
   -- Runtime Function: unsigned long long fract __negudq2 (unsigned long
            long fract A)
   -- Runtime Function: short accum __negha2 (short accum A)
*************** accumulator type `short accum' correspon
*** 1306,1313 ****
   -- Runtime Function: unsigned short accum __neguha2 (unsigned short
            accum A)
   -- Runtime Function: unsigned accum __negusa2 (unsigned accum A)
!  -- Runtime Function: unsigned long accum __neguda2 (unsigned long
!           accum A)
   -- Runtime Function: unsigned long long accum __neguta2 (unsigned long
            long accum A)
       These functions return the negation of A.
--- 1303,1310 ----
   -- Runtime Function: unsigned short accum __neguha2 (unsigned short
            accum A)
   -- Runtime Function: unsigned accum __negusa2 (unsigned accum A)
!  -- Runtime Function: unsigned long accum __neguda2 (unsigned long accum
!           A)
   -- Runtime Function: unsigned long long accum __neguta2 (unsigned long
            long accum A)
       These functions return the negation of A.
*************** accumulator type `short accum' correspon
*** 1349,1356 ****
            B)
   -- Runtime Function: unsigned long fract __ashlusq3 (unsigned long
            fract A, int B)
!  -- Runtime Function: unsigned long long fract __ashludq3 (unsigned
!           long long fract A, int B)
   -- Runtime Function: short accum __ashlha3 (short accum A, int B)
   -- Runtime Function: accum __ashlsa3 (accum A, int B)
   -- Runtime Function: long accum __ashlda3 (long accum A, int B)
--- 1346,1353 ----
            B)
   -- Runtime Function: unsigned long fract __ashlusq3 (unsigned long
            fract A, int B)
!  -- Runtime Function: unsigned long long fract __ashludq3 (unsigned long
!           long fract A, int B)
   -- Runtime Function: short accum __ashlha3 (short accum A, int B)
   -- Runtime Function: accum __ashlsa3 (accum A, int B)
   -- Runtime Function: long accum __ashlda3 (long accum A, int B)
*************** accumulator type `short accum' correspon
*** 1362,1369 ****
            B)
   -- Runtime Function: unsigned long accum __ashluda3 (unsigned long
            accum A, int B)
!  -- Runtime Function: unsigned long long accum __ashluta3 (unsigned
!           long long accum A, int B)
       These functions return the result of shifting A left by B bits.
  
   -- Runtime Function: short fract __ashrqq3 (short fract A, int B)
--- 1359,1366 ----
            B)
   -- Runtime Function: unsigned long accum __ashluda3 (unsigned long
            accum A, int B)
!  -- Runtime Function: unsigned long long accum __ashluta3 (unsigned long
!           long accum A, int B)
       These functions return the result of shifting A left by B bits.
  
   -- Runtime Function: short fract __ashrqq3 (short fract A, int B)
*************** accumulator type `short accum' correspon
*** 1385,1400 ****
            B)
   -- Runtime Function: unsigned long fract __lshrusq3 (unsigned long
            fract A, int B)
!  -- Runtime Function: unsigned long long fract __lshrudq3 (unsigned
!           long long fract A, int B)
   -- Runtime Function: unsigned short accum __lshruha3 (unsigned short
            accum A, int B)
   -- Runtime Function: unsigned accum __lshrusa3 (unsigned accum A, int
            B)
   -- Runtime Function: unsigned long accum __lshruda3 (unsigned long
            accum A, int B)
!  -- Runtime Function: unsigned long long accum __lshruta3 (unsigned
!           long long accum A, int B)
       These functions return the result of logically shifting A right by
       B bits.
  
--- 1382,1397 ----
            B)
   -- Runtime Function: unsigned long fract __lshrusq3 (unsigned long
            fract A, int B)
!  -- Runtime Function: unsigned long long fract __lshrudq3 (unsigned long
!           long fract A, int B)
   -- Runtime Function: unsigned short accum __lshruha3 (unsigned short
            accum A, int B)
   -- Runtime Function: unsigned accum __lshrusa3 (unsigned accum A, int
            B)
   -- Runtime Function: unsigned long accum __lshruda3 (unsigned long
            accum A, int B)
!  -- Runtime Function: unsigned long long accum __lshruta3 (unsigned long
!           long accum A, int B)
       These functions return the result of logically shifting A right by
       B bits.
  
*************** accumulator type `short accum' correspon
*** 1407,1433 ****
   -- Runtime Function: long accum __ssashlda3 (long accum A, int B)
   -- Runtime Function: long long accum __ssashlta3 (long long accum A,
            int B)
!      These functions return the result of shifting A left by B bits
!      with signed saturation.
  
   -- Runtime Function: unsigned short fract __usashluqq3 (unsigned short
            fract A, int B)
!  -- Runtime Function: unsigned fract __usashluhq3 (unsigned fract A,
!           int B)
   -- Runtime Function: unsigned long fract __usashlusq3 (unsigned long
            fract A, int B)
   -- Runtime Function: unsigned long long fract __usashludq3 (unsigned
            long long fract A, int B)
   -- Runtime Function: unsigned short accum __usashluha3 (unsigned short
            accum A, int B)
!  -- Runtime Function: unsigned accum __usashlusa3 (unsigned accum A,
!           int B)
   -- Runtime Function: unsigned long accum __usashluda3 (unsigned long
            accum A, int B)
   -- Runtime Function: unsigned long long accum __usashluta3 (unsigned
            long long accum A, int B)
!      These functions return the result of shifting A left by B bits
!      with unsigned saturation.
  
  4.4.2 Comparison functions
  --------------------------
--- 1404,1430 ----
   -- Runtime Function: long accum __ssashlda3 (long accum A, int B)
   -- Runtime Function: long long accum __ssashlta3 (long long accum A,
            int B)
!      These functions return the result of shifting A left by B bits with
!      signed saturation.
  
   -- Runtime Function: unsigned short fract __usashluqq3 (unsigned short
            fract A, int B)
!  -- Runtime Function: unsigned fract __usashluhq3 (unsigned fract A, int
!           B)
   -- Runtime Function: unsigned long fract __usashlusq3 (unsigned long
            fract A, int B)
   -- Runtime Function: unsigned long long fract __usashludq3 (unsigned
            long long fract A, int B)
   -- Runtime Function: unsigned short accum __usashluha3 (unsigned short
            accum A, int B)
!  -- Runtime Function: unsigned accum __usashlusa3 (unsigned accum A, int
!           B)
   -- Runtime Function: unsigned long accum __usashluda3 (unsigned long
            accum A, int B)
   -- Runtime Function: unsigned long long accum __usashluta3 (unsigned
            long long accum A, int B)
!      These functions return the result of shifting A left by B bits with
!      unsigned saturation.
  
  4.4.2 Comparison functions
  --------------------------
*************** returned result using either signed or u
*** 1481,1493 ****
   -- Runtime Function: unsigned short fract __fractqquqq (short fract A)
   -- Runtime Function: unsigned fract __fractqquhq (short fract A)
   -- Runtime Function: unsigned long fract __fractqqusq (short fract A)
!  -- Runtime Function: unsigned long long fract __fractqqudq (short
!           fract A)
   -- Runtime Function: unsigned short accum __fractqquha (short fract A)
   -- Runtime Function: unsigned accum __fractqqusa (short fract A)
   -- Runtime Function: unsigned long accum __fractqquda (short fract A)
!  -- Runtime Function: unsigned long long accum __fractqquta (short
!           fract A)
   -- Runtime Function: signed char __fractqqqi (short fract A)
   -- Runtime Function: short __fractqqhi (short fract A)
   -- Runtime Function: int __fractqqsi (short fract A)
--- 1478,1490 ----
   -- Runtime Function: unsigned short fract __fractqquqq (short fract A)
   -- Runtime Function: unsigned fract __fractqquhq (short fract A)
   -- Runtime Function: unsigned long fract __fractqqusq (short fract A)
!  -- Runtime Function: unsigned long long fract __fractqqudq (short fract
!           A)
   -- Runtime Function: unsigned short accum __fractqquha (short fract A)
   -- Runtime Function: unsigned accum __fractqqusa (short fract A)
   -- Runtime Function: unsigned long accum __fractqquda (short fract A)
!  -- Runtime Function: unsigned long long accum __fractqquta (short fract
!           A)
   -- Runtime Function: signed char __fractqqqi (short fract A)
   -- Runtime Function: short __fractqqhi (short fract A)
   -- Runtime Function: int __fractqqsi (short fract A)
*************** returned result using either signed or u
*** 1548,1562 ****
   -- Runtime Function: accum __fractdqsa (long long fract A)
   -- Runtime Function: long accum __fractdqda (long long fract A)
   -- Runtime Function: long long accum __fractdqta (long long fract A)
!  -- Runtime Function: unsigned short fract __fractdquqq (long long
!           fract A)
   -- Runtime Function: unsigned fract __fractdquhq (long long fract A)
   -- Runtime Function: unsigned long fract __fractdqusq (long long fract
            A)
   -- Runtime Function: unsigned long long fract __fractdqudq (long long
            fract A)
!  -- Runtime Function: unsigned short accum __fractdquha (long long
!           fract A)
   -- Runtime Function: unsigned accum __fractdqusa (long long fract A)
   -- Runtime Function: unsigned long accum __fractdquda (long long fract
            A)
--- 1545,1559 ----
   -- Runtime Function: accum __fractdqsa (long long fract A)
   -- Runtime Function: long accum __fractdqda (long long fract A)
   -- Runtime Function: long long accum __fractdqta (long long fract A)
!  -- Runtime Function: unsigned short fract __fractdquqq (long long fract
!           A)
   -- Runtime Function: unsigned fract __fractdquhq (long long fract A)
   -- Runtime Function: unsigned long fract __fractdqusq (long long fract
            A)
   -- Runtime Function: unsigned long long fract __fractdqudq (long long
            fract A)
!  -- Runtime Function: unsigned short accum __fractdquha (long long fract
!           A)
   -- Runtime Function: unsigned accum __fractdqusa (long long fract A)
   -- Runtime Function: unsigned long accum __fractdquda (long long fract
            A)
*************** returned result using either signed or u
*** 1579,1591 ****
   -- Runtime Function: unsigned short fract __fracthauqq (short accum A)
   -- Runtime Function: unsigned fract __fracthauhq (short accum A)
   -- Runtime Function: unsigned long fract __fracthausq (short accum A)
!  -- Runtime Function: unsigned long long fract __fracthaudq (short
!           accum A)
   -- Runtime Function: unsigned short accum __fracthauha (short accum A)
   -- Runtime Function: unsigned accum __fracthausa (short accum A)
   -- Runtime Function: unsigned long accum __fracthauda (short accum A)
!  -- Runtime Function: unsigned long long accum __fracthauta (short
!           accum A)
   -- Runtime Function: signed char __fracthaqi (short accum A)
   -- Runtime Function: short __fracthahi (short accum A)
   -- Runtime Function: int __fracthasi (short accum A)
--- 1576,1588 ----
   -- Runtime Function: unsigned short fract __fracthauqq (short accum A)
   -- Runtime Function: unsigned fract __fracthauhq (short accum A)
   -- Runtime Function: unsigned long fract __fracthausq (short accum A)
!  -- Runtime Function: unsigned long long fract __fracthaudq (short accum
!           A)
   -- Runtime Function: unsigned short accum __fracthauha (short accum A)
   -- Runtime Function: unsigned accum __fracthausa (short accum A)
   -- Runtime Function: unsigned long accum __fracthauda (short accum A)
!  -- Runtime Function: unsigned long long accum __fracthauta (short accum
!           A)
   -- Runtime Function: signed char __fracthaqi (short accum A)
   -- Runtime Function: short __fracthahi (short accum A)
   -- Runtime Function: int __fracthasi (short accum A)
*************** returned result using either signed or u
*** 1646,1660 ****
   -- Runtime Function: short accum __fracttaha2 (long long accum A)
   -- Runtime Function: accum __fracttasa2 (long long accum A)
   -- Runtime Function: long accum __fracttada2 (long long accum A)
!  -- Runtime Function: unsigned short fract __fracttauqq (long long
!           accum A)
   -- Runtime Function: unsigned fract __fracttauhq (long long accum A)
   -- Runtime Function: unsigned long fract __fracttausq (long long accum
            A)
   -- Runtime Function: unsigned long long fract __fracttaudq (long long
            accum A)
!  -- Runtime Function: unsigned short accum __fracttauha (long long
!           accum A)
   -- Runtime Function: unsigned accum __fracttausa (long long accum A)
   -- Runtime Function: unsigned long accum __fracttauda (long long accum
            A)
--- 1643,1657 ----
   -- Runtime Function: short accum __fracttaha2 (long long accum A)
   -- Runtime Function: accum __fracttasa2 (long long accum A)
   -- Runtime Function: long accum __fracttada2 (long long accum A)
!  -- Runtime Function: unsigned short fract __fracttauqq (long long accum
!           A)
   -- Runtime Function: unsigned fract __fracttauhq (long long accum A)
   -- Runtime Function: unsigned long fract __fracttausq (long long accum
            A)
   -- Runtime Function: unsigned long long fract __fracttaudq (long long
            accum A)
!  -- Runtime Function: unsigned short accum __fracttauha (long long accum
!           A)
   -- Runtime Function: unsigned accum __fracttausa (long long accum A)
   -- Runtime Function: unsigned long accum __fracttauda (long long accum
            A)
*************** returned result using either signed or u
*** 1670,1692 ****
   -- Runtime Function: short fract __fractuqqqq (unsigned short fract A)
   -- Runtime Function: fract __fractuqqhq (unsigned short fract A)
   -- Runtime Function: long fract __fractuqqsq (unsigned short fract A)
!  -- Runtime Function: long long fract __fractuqqdq (unsigned short
!           fract A)
   -- Runtime Function: short accum __fractuqqha (unsigned short fract A)
   -- Runtime Function: accum __fractuqqsa (unsigned short fract A)
   -- Runtime Function: long accum __fractuqqda (unsigned short fract A)
!  -- Runtime Function: long long accum __fractuqqta (unsigned short
!           fract A)
   -- Runtime Function: unsigned fract __fractuqquhq2 (unsigned short
            fract A)
!  -- Runtime Function: unsigned long fract __fractuqqusq2 (unsigned
!           short fract A)
   -- Runtime Function: unsigned long long fract __fractuqqudq2 (unsigned
            short fract A)
!  -- Runtime Function: unsigned short accum __fractuqquha (unsigned
!           short fract A)
!  -- Runtime Function: unsigned accum __fractuqqusa (unsigned short
            fract A)
   -- Runtime Function: unsigned long accum __fractuqquda (unsigned short
            fract A)
   -- Runtime Function: unsigned long long accum __fractuqquta (unsigned
--- 1667,1689 ----
   -- Runtime Function: short fract __fractuqqqq (unsigned short fract A)
   -- Runtime Function: fract __fractuqqhq (unsigned short fract A)
   -- Runtime Function: long fract __fractuqqsq (unsigned short fract A)
!  -- Runtime Function: long long fract __fractuqqdq (unsigned short fract
!           A)
   -- Runtime Function: short accum __fractuqqha (unsigned short fract A)
   -- Runtime Function: accum __fractuqqsa (unsigned short fract A)
   -- Runtime Function: long accum __fractuqqda (unsigned short fract A)
!  -- Runtime Function: long long accum __fractuqqta (unsigned short fract
!           A)
   -- Runtime Function: unsigned fract __fractuqquhq2 (unsigned short
            fract A)
!  -- Runtime Function: unsigned long fract __fractuqqusq2 (unsigned short
!           fract A)
   -- Runtime Function: unsigned long long fract __fractuqqudq2 (unsigned
            short fract A)
!  -- Runtime Function: unsigned short accum __fractuqquha (unsigned short
            fract A)
+  -- Runtime Function: unsigned accum __fractuqqusa (unsigned short fract
+           A)
   -- Runtime Function: unsigned long accum __fractuqquda (unsigned short
            fract A)
   -- Runtime Function: unsigned long long accum __fractuqquta (unsigned
*************** returned result using either signed or u
*** 1708,1719 ****
   -- Runtime Function: long long accum __fractuhqta (unsigned fract A)
   -- Runtime Function: unsigned short fract __fractuhquqq2 (unsigned
            fract A)
!  -- Runtime Function: unsigned long fract __fractuhqusq2 (unsigned
!           fract A)
   -- Runtime Function: unsigned long long fract __fractuhqudq2 (unsigned
            fract A)
!  -- Runtime Function: unsigned short accum __fractuhquha (unsigned
!           fract A)
   -- Runtime Function: unsigned accum __fractuhqusa (unsigned fract A)
   -- Runtime Function: unsigned long accum __fractuhquda (unsigned fract
            A)
--- 1705,1716 ----
   -- Runtime Function: long long accum __fractuhqta (unsigned fract A)
   -- Runtime Function: unsigned short fract __fractuhquqq2 (unsigned
            fract A)
!  -- Runtime Function: unsigned long fract __fractuhqusq2 (unsigned fract
!           A)
   -- Runtime Function: unsigned long long fract __fractuhqudq2 (unsigned
            fract A)
!  -- Runtime Function: unsigned short accum __fractuhquha (unsigned fract
!           A)
   -- Runtime Function: unsigned accum __fractuhqusa (unsigned fract A)
   -- Runtime Function: unsigned long accum __fractuhquda (unsigned fract
            A)
*************** returned result using either signed or u
*** 1736,1745 ****
   -- Runtime Function: long accum __fractusqda (unsigned long fract A)
   -- Runtime Function: long long accum __fractusqta (unsigned long fract
            A)
!  -- Runtime Function: unsigned short fract __fractusquqq2 (unsigned
!           long fract A)
!  -- Runtime Function: unsigned fract __fractusquhq2 (unsigned long
            fract A)
   -- Runtime Function: unsigned long long fract __fractusqudq2 (unsigned
            long fract A)
   -- Runtime Function: unsigned short accum __fractusquha (unsigned long
--- 1733,1742 ----
   -- Runtime Function: long accum __fractusqda (unsigned long fract A)
   -- Runtime Function: long long accum __fractusqta (unsigned long fract
            A)
!  -- Runtime Function: unsigned short fract __fractusquqq2 (unsigned long
            fract A)
+  -- Runtime Function: unsigned fract __fractusquhq2 (unsigned long fract
+           A)
   -- Runtime Function: unsigned long long fract __fractusqudq2 (unsigned
            long fract A)
   -- Runtime Function: unsigned short accum __fractusquha (unsigned long
*************** returned result using either signed or u
*** 1757,1778 ****
   -- Runtime Function: long long __fractusqti (unsigned long fract A)
   -- Runtime Function: float __fractusqsf (unsigned long fract A)
   -- Runtime Function: double __fractusqdf (unsigned long fract A)
!  -- Runtime Function: short fract __fractudqqq (unsigned long long
!           fract A)
   -- Runtime Function: fract __fractudqhq (unsigned long long fract A)
   -- Runtime Function: long fract __fractudqsq (unsigned long long fract
            A)
   -- Runtime Function: long long fract __fractudqdq (unsigned long long
            fract A)
!  -- Runtime Function: short accum __fractudqha (unsigned long long
!           fract A)
   -- Runtime Function: accum __fractudqsa (unsigned long long fract A)
   -- Runtime Function: long accum __fractudqda (unsigned long long fract
            A)
   -- Runtime Function: long long accum __fractudqta (unsigned long long
            fract A)
!  -- Runtime Function: unsigned short fract __fractudquqq2 (unsigned
!           long long fract A)
   -- Runtime Function: unsigned fract __fractudquhq2 (unsigned long long
            fract A)
   -- Runtime Function: unsigned long fract __fractudqusq2 (unsigned long
--- 1754,1775 ----
   -- Runtime Function: long long __fractusqti (unsigned long fract A)
   -- Runtime Function: float __fractusqsf (unsigned long fract A)
   -- Runtime Function: double __fractusqdf (unsigned long fract A)
!  -- Runtime Function: short fract __fractudqqq (unsigned long long fract
!           A)
   -- Runtime Function: fract __fractudqhq (unsigned long long fract A)
   -- Runtime Function: long fract __fractudqsq (unsigned long long fract
            A)
   -- Runtime Function: long long fract __fractudqdq (unsigned long long
            fract A)
!  -- Runtime Function: short accum __fractudqha (unsigned long long fract
!           A)
   -- Runtime Function: accum __fractudqsa (unsigned long long fract A)
   -- Runtime Function: long accum __fractudqda (unsigned long long fract
            A)
   -- Runtime Function: long long accum __fractudqta (unsigned long long
            fract A)
!  -- Runtime Function: unsigned short fract __fractudquqq2 (unsigned long
!           long fract A)
   -- Runtime Function: unsigned fract __fractudquhq2 (unsigned long long
            fract A)
   -- Runtime Function: unsigned long fract __fractudqusq2 (unsigned long
*************** returned result using either signed or u
*** 1785,1792 ****
            long fract A)
   -- Runtime Function: unsigned long long accum __fractudquta (unsigned
            long long fract A)
!  -- Runtime Function: signed char __fractudqqi (unsigned long long
!           fract A)
   -- Runtime Function: short __fractudqhi (unsigned long long fract A)
   -- Runtime Function: int __fractudqsi (unsigned long long fract A)
   -- Runtime Function: long __fractudqdi (unsigned long long fract A)
--- 1782,1789 ----
            long fract A)
   -- Runtime Function: unsigned long long accum __fractudquta (unsigned
            long long fract A)
!  -- Runtime Function: signed char __fractudqqi (unsigned long long fract
!           A)
   -- Runtime Function: short __fractudqhi (unsigned long long fract A)
   -- Runtime Function: int __fractudqsi (unsigned long long fract A)
   -- Runtime Function: long __fractudqdi (unsigned long long fract A)
*************** returned result using either signed or u
*** 1797,1821 ****
   -- Runtime Function: short fract __fractuhaqq (unsigned short accum A)
   -- Runtime Function: fract __fractuhahq (unsigned short accum A)
   -- Runtime Function: long fract __fractuhasq (unsigned short accum A)
!  -- Runtime Function: long long fract __fractuhadq (unsigned short
!           accum A)
   -- Runtime Function: short accum __fractuhaha (unsigned short accum A)
   -- Runtime Function: accum __fractuhasa (unsigned short accum A)
   -- Runtime Function: long accum __fractuhada (unsigned short accum A)
!  -- Runtime Function: long long accum __fractuhata (unsigned short
!           accum A)
!  -- Runtime Function: unsigned short fract __fractuhauqq (unsigned
!           short accum A)
!  -- Runtime Function: unsigned fract __fractuhauhq (unsigned short
            accum A)
   -- Runtime Function: unsigned long fract __fractuhausq (unsigned short
            accum A)
   -- Runtime Function: unsigned long long fract __fractuhaudq (unsigned
            short accum A)
   -- Runtime Function: unsigned accum __fractuhausa2 (unsigned short
            accum A)
!  -- Runtime Function: unsigned long accum __fractuhauda2 (unsigned
!           short accum A)
   -- Runtime Function: unsigned long long accum __fractuhauta2 (unsigned
            short accum A)
   -- Runtime Function: signed char __fractuhaqi (unsigned short accum A)
--- 1794,1818 ----
   -- Runtime Function: short fract __fractuhaqq (unsigned short accum A)
   -- Runtime Function: fract __fractuhahq (unsigned short accum A)
   -- Runtime Function: long fract __fractuhasq (unsigned short accum A)
!  -- Runtime Function: long long fract __fractuhadq (unsigned short accum
!           A)
   -- Runtime Function: short accum __fractuhaha (unsigned short accum A)
   -- Runtime Function: accum __fractuhasa (unsigned short accum A)
   -- Runtime Function: long accum __fractuhada (unsigned short accum A)
!  -- Runtime Function: long long accum __fractuhata (unsigned short accum
!           A)
!  -- Runtime Function: unsigned short fract __fractuhauqq (unsigned short
            accum A)
+  -- Runtime Function: unsigned fract __fractuhauhq (unsigned short accum
+           A)
   -- Runtime Function: unsigned long fract __fractuhausq (unsigned short
            accum A)
   -- Runtime Function: unsigned long long fract __fractuhaudq (unsigned
            short accum A)
   -- Runtime Function: unsigned accum __fractuhausa2 (unsigned short
            accum A)
!  -- Runtime Function: unsigned long accum __fractuhauda2 (unsigned short
!           accum A)
   -- Runtime Function: unsigned long long accum __fractuhauta2 (unsigned
            short accum A)
   -- Runtime Function: signed char __fractuhaqi (unsigned short accum A)
*************** returned result using either signed or u
*** 1833,1840 ****
   -- Runtime Function: accum __fractusasa (unsigned accum A)
   -- Runtime Function: long accum __fractusada (unsigned accum A)
   -- Runtime Function: long long accum __fractusata (unsigned accum A)
!  -- Runtime Function: unsigned short fract __fractusauqq (unsigned
!           accum A)
   -- Runtime Function: unsigned fract __fractusauhq (unsigned accum A)
   -- Runtime Function: unsigned long fract __fractusausq (unsigned accum
            A)
--- 1830,1837 ----
   -- Runtime Function: accum __fractusasa (unsigned accum A)
   -- Runtime Function: long accum __fractusada (unsigned accum A)
   -- Runtime Function: long long accum __fractusata (unsigned accum A)
!  -- Runtime Function: unsigned short fract __fractusauqq (unsigned accum
!           A)
   -- Runtime Function: unsigned fract __fractusauhq (unsigned accum A)
   -- Runtime Function: unsigned long fract __fractusausq (unsigned accum
            A)
*************** returned result using either signed or u
*** 1842,1849 ****
            accum A)
   -- Runtime Function: unsigned short accum __fractusauha2 (unsigned
            accum A)
!  -- Runtime Function: unsigned long accum __fractusauda2 (unsigned
!           accum A)
   -- Runtime Function: unsigned long long accum __fractusauta2 (unsigned
            accum A)
   -- Runtime Function: signed char __fractusaqi (unsigned accum A)
--- 1839,1846 ----
            accum A)
   -- Runtime Function: unsigned short accum __fractusauha2 (unsigned
            accum A)
!  -- Runtime Function: unsigned long accum __fractusauda2 (unsigned accum
!           A)
   -- Runtime Function: unsigned long long accum __fractusauta2 (unsigned
            accum A)
   -- Runtime Function: signed char __fractusaqi (unsigned accum A)
*************** returned result using either signed or u
*** 1871,1880 ****
            accum A)
   -- Runtime Function: unsigned long long fract __fractudaudq (unsigned
            long accum A)
!  -- Runtime Function: unsigned short accum __fractudauha2 (unsigned
!           long accum A)
!  -- Runtime Function: unsigned accum __fractudausa2 (unsigned long
            accum A)
   -- Runtime Function: unsigned long long accum __fractudauta2 (unsigned
            long accum A)
   -- Runtime Function: signed char __fractudaqi (unsigned long accum A)
--- 1868,1877 ----
            accum A)
   -- Runtime Function: unsigned long long fract __fractudaudq (unsigned
            long accum A)
!  -- Runtime Function: unsigned short accum __fractudauha2 (unsigned long
            accum A)
+  -- Runtime Function: unsigned accum __fractudausa2 (unsigned long accum
+           A)
   -- Runtime Function: unsigned long long accum __fractudauta2 (unsigned
            long accum A)
   -- Runtime Function: signed char __fractudaqi (unsigned long accum A)
*************** returned result using either signed or u
*** 1884,1898 ****
   -- Runtime Function: long long __fractudati (unsigned long accum A)
   -- Runtime Function: float __fractudasf (unsigned long accum A)
   -- Runtime Function: double __fractudadf (unsigned long accum A)
!  -- Runtime Function: short fract __fractutaqq (unsigned long long
!           accum A)
   -- Runtime Function: fract __fractutahq (unsigned long long accum A)
   -- Runtime Function: long fract __fractutasq (unsigned long long accum
            A)
   -- Runtime Function: long long fract __fractutadq (unsigned long long
            accum A)
!  -- Runtime Function: short accum __fractutaha (unsigned long long
!           accum A)
   -- Runtime Function: accum __fractutasa (unsigned long long accum A)
   -- Runtime Function: long accum __fractutada (unsigned long long accum
            A)
--- 1881,1895 ----
   -- Runtime Function: long long __fractudati (unsigned long accum A)
   -- Runtime Function: float __fractudasf (unsigned long accum A)
   -- Runtime Function: double __fractudadf (unsigned long accum A)
!  -- Runtime Function: short fract __fractutaqq (unsigned long long accum
!           A)
   -- Runtime Function: fract __fractutahq (unsigned long long accum A)
   -- Runtime Function: long fract __fractutasq (unsigned long long accum
            A)
   -- Runtime Function: long long fract __fractutadq (unsigned long long
            accum A)
!  -- Runtime Function: short accum __fractutaha (unsigned long long accum
!           A)
   -- Runtime Function: accum __fractutasa (unsigned long long accum A)
   -- Runtime Function: long accum __fractutada (unsigned long long accum
            A)
*************** returned result using either signed or u
*** 1906,1919 ****
            long accum A)
   -- Runtime Function: unsigned long long fract __fractutaudq (unsigned
            long long accum A)
!  -- Runtime Function: unsigned short accum __fractutauha2 (unsigned
!           long long accum A)
   -- Runtime Function: unsigned accum __fractutausa2 (unsigned long long
            accum A)
   -- Runtime Function: unsigned long accum __fractutauda2 (unsigned long
            long accum A)
!  -- Runtime Function: signed char __fractutaqi (unsigned long long
!           accum A)
   -- Runtime Function: short __fractutahi (unsigned long long accum A)
   -- Runtime Function: int __fractutasi (unsigned long long accum A)
   -- Runtime Function: long __fractutadi (unsigned long long accum A)
--- 1903,1916 ----
            long accum A)
   -- Runtime Function: unsigned long long fract __fractutaudq (unsigned
            long long accum A)
!  -- Runtime Function: unsigned short accum __fractutauha2 (unsigned long
!           long accum A)
   -- Runtime Function: unsigned accum __fractutausa2 (unsigned long long
            accum A)
   -- Runtime Function: unsigned long accum __fractutauda2 (unsigned long
            long accum A)
!  -- Runtime Function: signed char __fractutaqi (unsigned long long accum
!           A)
   -- Runtime Function: short __fractutahi (unsigned long long accum A)
   -- Runtime Function: int __fractutasi (unsigned long long accum A)
   -- Runtime Function: long __fractutadi (unsigned long long accum A)
*************** returned result using either signed or u
*** 1932,1944 ****
   -- Runtime Function: unsigned short fract __fractqiuqq (signed char A)
   -- Runtime Function: unsigned fract __fractqiuhq (signed char A)
   -- Runtime Function: unsigned long fract __fractqiusq (signed char A)
!  -- Runtime Function: unsigned long long fract __fractqiudq (signed
!           char A)
   -- Runtime Function: unsigned short accum __fractqiuha (signed char A)
   -- Runtime Function: unsigned accum __fractqiusa (signed char A)
   -- Runtime Function: unsigned long accum __fractqiuda (signed char A)
!  -- Runtime Function: unsigned long long accum __fractqiuta (signed
!           char A)
   -- Runtime Function: short fract __fracthiqq (short A)
   -- Runtime Function: fract __fracthihq (short A)
   -- Runtime Function: long fract __fracthisq (short A)
--- 1929,1941 ----
   -- Runtime Function: unsigned short fract __fractqiuqq (signed char A)
   -- Runtime Function: unsigned fract __fractqiuhq (signed char A)
   -- Runtime Function: unsigned long fract __fractqiusq (signed char A)
!  -- Runtime Function: unsigned long long fract __fractqiudq (signed char
!           A)
   -- Runtime Function: unsigned short accum __fractqiuha (signed char A)
   -- Runtime Function: unsigned accum __fractqiusa (signed char A)
   -- Runtime Function: unsigned long accum __fractqiuda (signed char A)
!  -- Runtime Function: unsigned long long accum __fractqiuta (signed char
!           A)
   -- Runtime Function: short fract __fracthiqq (short A)
   -- Runtime Function: fract __fracthihq (short A)
   -- Runtime Function: long fract __fracthisq (short A)
*************** returned result using either signed or u
*** 2542,2549 ****
   -- Runtime Function: unsigned short __fractunsdqhi (long long fract A)
   -- Runtime Function: unsigned int __fractunsdqsi (long long fract A)
   -- Runtime Function: unsigned long __fractunsdqdi (long long fract A)
!  -- Runtime Function: unsigned long long __fractunsdqti (long long
!           fract A)
   -- Runtime Function: unsigned char __fractunshaqi (short accum A)
   -- Runtime Function: unsigned short __fractunshahi (short accum A)
   -- Runtime Function: unsigned int __fractunshasi (short accum A)
--- 2539,2546 ----
   -- Runtime Function: unsigned short __fractunsdqhi (long long fract A)
   -- Runtime Function: unsigned int __fractunsdqsi (long long fract A)
   -- Runtime Function: unsigned long __fractunsdqdi (long long fract A)
!  -- Runtime Function: unsigned long long __fractunsdqti (long long fract
!           A)
   -- Runtime Function: unsigned char __fractunshaqi (short accum A)
   -- Runtime Function: unsigned short __fractunshahi (short accum A)
   -- Runtime Function: unsigned int __fractunshasi (short accum A)
*************** returned result using either signed or u
*** 2563,2600 ****
   -- Runtime Function: unsigned short __fractunstahi (long long accum A)
   -- Runtime Function: unsigned int __fractunstasi (long long accum A)
   -- Runtime Function: unsigned long __fractunstadi (long long accum A)
!  -- Runtime Function: unsigned long long __fractunstati (long long
!           accum A)
   -- Runtime Function: unsigned char __fractunsuqqqi (unsigned short
            fract A)
   -- Runtime Function: unsigned short __fractunsuqqhi (unsigned short
            fract A)
!  -- Runtime Function: unsigned int __fractunsuqqsi (unsigned short
!           fract A)
   -- Runtime Function: unsigned long __fractunsuqqdi (unsigned short
            fract A)
!  -- Runtime Function: unsigned long long __fractunsuqqti (unsigned
!           short fract A)
   -- Runtime Function: unsigned char __fractunsuhqqi (unsigned fract A)
   -- Runtime Function: unsigned short __fractunsuhqhi (unsigned fract A)
   -- Runtime Function: unsigned int __fractunsuhqsi (unsigned fract A)
   -- Runtime Function: unsigned long __fractunsuhqdi (unsigned fract A)
!  -- Runtime Function: unsigned long long __fractunsuhqti (unsigned
!           fract A)
!  -- Runtime Function: unsigned char __fractunsusqqi (unsigned long
!           fract A)
   -- Runtime Function: unsigned short __fractunsusqhi (unsigned long
            fract A)
   -- Runtime Function: unsigned int __fractunsusqsi (unsigned long fract
            A)
!  -- Runtime Function: unsigned long __fractunsusqdi (unsigned long
!           fract A)
   -- Runtime Function: unsigned long long __fractunsusqti (unsigned long
            fract A)
   -- Runtime Function: unsigned char __fractunsudqqi (unsigned long long
            fract A)
!  -- Runtime Function: unsigned short __fractunsudqhi (unsigned long
!           long fract A)
   -- Runtime Function: unsigned int __fractunsudqsi (unsigned long long
            fract A)
   -- Runtime Function: unsigned long __fractunsudqdi (unsigned long long
--- 2560,2597 ----
   -- Runtime Function: unsigned short __fractunstahi (long long accum A)
   -- Runtime Function: unsigned int __fractunstasi (long long accum A)
   -- Runtime Function: unsigned long __fractunstadi (long long accum A)
!  -- Runtime Function: unsigned long long __fractunstati (long long accum
!           A)
   -- Runtime Function: unsigned char __fractunsuqqqi (unsigned short
            fract A)
   -- Runtime Function: unsigned short __fractunsuqqhi (unsigned short
            fract A)
!  -- Runtime Function: unsigned int __fractunsuqqsi (unsigned short fract
!           A)
   -- Runtime Function: unsigned long __fractunsuqqdi (unsigned short
            fract A)
!  -- Runtime Function: unsigned long long __fractunsuqqti (unsigned short
!           fract A)
   -- Runtime Function: unsigned char __fractunsuhqqi (unsigned fract A)
   -- Runtime Function: unsigned short __fractunsuhqhi (unsigned fract A)
   -- Runtime Function: unsigned int __fractunsuhqsi (unsigned fract A)
   -- Runtime Function: unsigned long __fractunsuhqdi (unsigned fract A)
!  -- Runtime Function: unsigned long long __fractunsuhqti (unsigned fract
!           A)
!  -- Runtime Function: unsigned char __fractunsusqqi (unsigned long fract
!           A)
   -- Runtime Function: unsigned short __fractunsusqhi (unsigned long
            fract A)
   -- Runtime Function: unsigned int __fractunsusqsi (unsigned long fract
            A)
!  -- Runtime Function: unsigned long __fractunsusqdi (unsigned long fract
!           A)
   -- Runtime Function: unsigned long long __fractunsusqti (unsigned long
            fract A)
   -- Runtime Function: unsigned char __fractunsudqqi (unsigned long long
            fract A)
!  -- Runtime Function: unsigned short __fractunsudqhi (unsigned long long
!           fract A)
   -- Runtime Function: unsigned int __fractunsudqsi (unsigned long long
            fract A)
   -- Runtime Function: unsigned long __fractunsudqdi (unsigned long long
*************** returned result using either signed or u
*** 2605,2636 ****
            accum A)
   -- Runtime Function: unsigned short __fractunsuhahi (unsigned short
            accum A)
!  -- Runtime Function: unsigned int __fractunsuhasi (unsigned short
!           accum A)
   -- Runtime Function: unsigned long __fractunsuhadi (unsigned short
            accum A)
!  -- Runtime Function: unsigned long long __fractunsuhati (unsigned
!           short accum A)
   -- Runtime Function: unsigned char __fractunsusaqi (unsigned accum A)
   -- Runtime Function: unsigned short __fractunsusahi (unsigned accum A)
   -- Runtime Function: unsigned int __fractunsusasi (unsigned accum A)
   -- Runtime Function: unsigned long __fractunsusadi (unsigned accum A)
!  -- Runtime Function: unsigned long long __fractunsusati (unsigned
!           accum A)
!  -- Runtime Function: unsigned char __fractunsudaqi (unsigned long
!           accum A)
   -- Runtime Function: unsigned short __fractunsudahi (unsigned long
            accum A)
   -- Runtime Function: unsigned int __fractunsudasi (unsigned long accum
            A)
!  -- Runtime Function: unsigned long __fractunsudadi (unsigned long
!           accum A)
   -- Runtime Function: unsigned long long __fractunsudati (unsigned long
            accum A)
   -- Runtime Function: unsigned char __fractunsutaqi (unsigned long long
            accum A)
!  -- Runtime Function: unsigned short __fractunsutahi (unsigned long
!           long accum A)
   -- Runtime Function: unsigned int __fractunsutasi (unsigned long long
            accum A)
   -- Runtime Function: unsigned long __fractunsutadi (unsigned long long
--- 2602,2633 ----
            accum A)
   -- Runtime Function: unsigned short __fractunsuhahi (unsigned short
            accum A)
!  -- Runtime Function: unsigned int __fractunsuhasi (unsigned short accum
!           A)
   -- Runtime Function: unsigned long __fractunsuhadi (unsigned short
            accum A)
!  -- Runtime Function: unsigned long long __fractunsuhati (unsigned short
!           accum A)
   -- Runtime Function: unsigned char __fractunsusaqi (unsigned accum A)
   -- Runtime Function: unsigned short __fractunsusahi (unsigned accum A)
   -- Runtime Function: unsigned int __fractunsusasi (unsigned accum A)
   -- Runtime Function: unsigned long __fractunsusadi (unsigned accum A)
!  -- Runtime Function: unsigned long long __fractunsusati (unsigned accum
!           A)
!  -- Runtime Function: unsigned char __fractunsudaqi (unsigned long accum
!           A)
   -- Runtime Function: unsigned short __fractunsudahi (unsigned long
            accum A)
   -- Runtime Function: unsigned int __fractunsudasi (unsigned long accum
            A)
!  -- Runtime Function: unsigned long __fractunsudadi (unsigned long accum
!           A)
   -- Runtime Function: unsigned long long __fractunsudati (unsigned long
            accum A)
   -- Runtime Function: unsigned char __fractunsutaqi (unsigned long long
            accum A)
!  -- Runtime Function: unsigned short __fractunsutahi (unsigned long long
!           accum A)
   -- Runtime Function: unsigned int __fractunsutasi (unsigned long long
            accum A)
   -- Runtime Function: unsigned long __fractunsutadi (unsigned long long
*************** returned result using either signed or u
*** 2648,2664 ****
   -- Runtime Function: unsigned short fract __fractunsqiuqq (unsigned
            char A)
   -- Runtime Function: unsigned fract __fractunsqiuhq (unsigned char A)
!  -- Runtime Function: unsigned long fract __fractunsqiusq (unsigned
            char A)
-  -- Runtime Function: unsigned long long fract __fractunsqiudq
-           (unsigned char A)
   -- Runtime Function: unsigned short accum __fractunsqiuha (unsigned
            char A)
   -- Runtime Function: unsigned accum __fractunsqiusa (unsigned char A)
!  -- Runtime Function: unsigned long accum __fractunsqiuda (unsigned
            char A)
-  -- Runtime Function: unsigned long long accum __fractunsqiuta
-           (unsigned char A)
   -- Runtime Function: short fract __fractunshiqq (unsigned short A)
   -- Runtime Function: fract __fractunshihq (unsigned short A)
   -- Runtime Function: long fract __fractunshisq (unsigned short A)
--- 2645,2661 ----
   -- Runtime Function: unsigned short fract __fractunsqiuqq (unsigned
            char A)
   -- Runtime Function: unsigned fract __fractunsqiuhq (unsigned char A)
!  -- Runtime Function: unsigned long fract __fractunsqiusq (unsigned char
!           A)
!  -- Runtime Function: unsigned long long fract __fractunsqiudq (unsigned
            char A)
   -- Runtime Function: unsigned short accum __fractunsqiuha (unsigned
            char A)
   -- Runtime Function: unsigned accum __fractunsqiusa (unsigned char A)
!  -- Runtime Function: unsigned long accum __fractunsqiuda (unsigned char
!           A)
!  -- Runtime Function: unsigned long long accum __fractunsqiuta (unsigned
            char A)
   -- Runtime Function: short fract __fractunshiqq (unsigned short A)
   -- Runtime Function: fract __fractunshihq (unsigned short A)
   -- Runtime Function: long fract __fractunshisq (unsigned short A)
*************** returned result using either signed or u
*** 2672,2686 ****
   -- Runtime Function: unsigned fract __fractunshiuhq (unsigned short A)
   -- Runtime Function: unsigned long fract __fractunshiusq (unsigned
            short A)
!  -- Runtime Function: unsigned long long fract __fractunshiudq
!           (unsigned short A)
   -- Runtime Function: unsigned short accum __fractunshiuha (unsigned
            short A)
   -- Runtime Function: unsigned accum __fractunshiusa (unsigned short A)
   -- Runtime Function: unsigned long accum __fractunshiuda (unsigned
            short A)
!  -- Runtime Function: unsigned long long accum __fractunshiuta
!           (unsigned short A)
   -- Runtime Function: short fract __fractunssiqq (unsigned int A)
   -- Runtime Function: fract __fractunssihq (unsigned int A)
   -- Runtime Function: long fract __fractunssisq (unsigned int A)
--- 2669,2683 ----
   -- Runtime Function: unsigned fract __fractunshiuhq (unsigned short A)
   -- Runtime Function: unsigned long fract __fractunshiusq (unsigned
            short A)
!  -- Runtime Function: unsigned long long fract __fractunshiudq (unsigned
!           short A)
   -- Runtime Function: unsigned short accum __fractunshiuha (unsigned
            short A)
   -- Runtime Function: unsigned accum __fractunshiusa (unsigned short A)
   -- Runtime Function: unsigned long accum __fractunshiuda (unsigned
            short A)
!  -- Runtime Function: unsigned long long accum __fractunshiuta (unsigned
!           short A)
   -- Runtime Function: short fract __fractunssiqq (unsigned int A)
   -- Runtime Function: fract __fractunssihq (unsigned int A)
   -- Runtime Function: long fract __fractunssisq (unsigned int A)
*************** returned result using either signed or u
*** 2689,2708 ****
   -- Runtime Function: accum __fractunssisa (unsigned int A)
   -- Runtime Function: long accum __fractunssida (unsigned int A)
   -- Runtime Function: long long accum __fractunssita (unsigned int A)
!  -- Runtime Function: unsigned short fract __fractunssiuqq (unsigned
!           int A)
   -- Runtime Function: unsigned fract __fractunssiuhq (unsigned int A)
   -- Runtime Function: unsigned long fract __fractunssiusq (unsigned int
            A)
!  -- Runtime Function: unsigned long long fract __fractunssiudq
!           (unsigned int A)
!  -- Runtime Function: unsigned short accum __fractunssiuha (unsigned
            int A)
   -- Runtime Function: unsigned accum __fractunssiusa (unsigned int A)
   -- Runtime Function: unsigned long accum __fractunssiuda (unsigned int
            A)
!  -- Runtime Function: unsigned long long accum __fractunssiuta
!           (unsigned int A)
   -- Runtime Function: short fract __fractunsdiqq (unsigned long A)
   -- Runtime Function: fract __fractunsdihq (unsigned long A)
   -- Runtime Function: long fract __fractunsdisq (unsigned long A)
--- 2686,2705 ----
   -- Runtime Function: accum __fractunssisa (unsigned int A)
   -- Runtime Function: long accum __fractunssida (unsigned int A)
   -- Runtime Function: long long accum __fractunssita (unsigned int A)
!  -- Runtime Function: unsigned short fract __fractunssiuqq (unsigned int
!           A)
   -- Runtime Function: unsigned fract __fractunssiuhq (unsigned int A)
   -- Runtime Function: unsigned long fract __fractunssiusq (unsigned int
            A)
!  -- Runtime Function: unsigned long long fract __fractunssiudq (unsigned
            int A)
+  -- Runtime Function: unsigned short accum __fractunssiuha (unsigned int
+           A)
   -- Runtime Function: unsigned accum __fractunssiusa (unsigned int A)
   -- Runtime Function: unsigned long accum __fractunssiuda (unsigned int
            A)
!  -- Runtime Function: unsigned long long accum __fractunssiuta (unsigned
!           int A)
   -- Runtime Function: short fract __fractunsdiqq (unsigned long A)
   -- Runtime Function: fract __fractunsdihq (unsigned long A)
   -- Runtime Function: long fract __fractunsdisq (unsigned long A)
*************** returned result using either signed or u
*** 2714,2756 ****
   -- Runtime Function: unsigned short fract __fractunsdiuqq (unsigned
            long A)
   -- Runtime Function: unsigned fract __fractunsdiuhq (unsigned long A)
!  -- Runtime Function: unsigned long fract __fractunsdiusq (unsigned
            long A)
-  -- Runtime Function: unsigned long long fract __fractunsdiudq
-           (unsigned long A)
   -- Runtime Function: unsigned short accum __fractunsdiuha (unsigned
            long A)
   -- Runtime Function: unsigned accum __fractunsdiusa (unsigned long A)
!  -- Runtime Function: unsigned long accum __fractunsdiuda (unsigned
            long A)
-  -- Runtime Function: unsigned long long accum __fractunsdiuta
-           (unsigned long A)
   -- Runtime Function: short fract __fractunstiqq (unsigned long long A)
   -- Runtime Function: fract __fractunstihq (unsigned long long A)
   -- Runtime Function: long fract __fractunstisq (unsigned long long A)
!  -- Runtime Function: long long fract __fractunstidq (unsigned long
!           long A)
   -- Runtime Function: short accum __fractunstiha (unsigned long long A)
   -- Runtime Function: accum __fractunstisa (unsigned long long A)
   -- Runtime Function: long accum __fractunstida (unsigned long long A)
!  -- Runtime Function: long long accum __fractunstita (unsigned long
!           long A)
   -- Runtime Function: unsigned short fract __fractunstiuqq (unsigned
            long long A)
!  -- Runtime Function: unsigned fract __fractunstiuhq (unsigned long
            long A)
!  -- Runtime Function: unsigned long fract __fractunstiusq (unsigned
            long long A)
-  -- Runtime Function: unsigned long long fract __fractunstiudq
-           (unsigned long long A)
   -- Runtime Function: unsigned short accum __fractunstiuha (unsigned
            long long A)
!  -- Runtime Function: unsigned accum __fractunstiusa (unsigned long
            long A)
!  -- Runtime Function: unsigned long accum __fractunstiuda (unsigned
            long long A)
-  -- Runtime Function: unsigned long long accum __fractunstiuta
-           (unsigned long long A)
       These functions convert from fractionals to unsigned
       non-fractionals; and from unsigned non-fractionals to fractionals,
       without saturation.
--- 2711,2753 ----
   -- Runtime Function: unsigned short fract __fractunsdiuqq (unsigned
            long A)
   -- Runtime Function: unsigned fract __fractunsdiuhq (unsigned long A)
!  -- Runtime Function: unsigned long fract __fractunsdiusq (unsigned long
!           A)
!  -- Runtime Function: unsigned long long fract __fractunsdiudq (unsigned
            long A)
   -- Runtime Function: unsigned short accum __fractunsdiuha (unsigned
            long A)
   -- Runtime Function: unsigned accum __fractunsdiusa (unsigned long A)
!  -- Runtime Function: unsigned long accum __fractunsdiuda (unsigned long
!           A)
!  -- Runtime Function: unsigned long long accum __fractunsdiuta (unsigned
            long A)
   -- Runtime Function: short fract __fractunstiqq (unsigned long long A)
   -- Runtime Function: fract __fractunstihq (unsigned long long A)
   -- Runtime Function: long fract __fractunstisq (unsigned long long A)
!  -- Runtime Function: long long fract __fractunstidq (unsigned long long
!           A)
   -- Runtime Function: short accum __fractunstiha (unsigned long long A)
   -- Runtime Function: accum __fractunstisa (unsigned long long A)
   -- Runtime Function: long accum __fractunstida (unsigned long long A)
!  -- Runtime Function: long long accum __fractunstita (unsigned long long
!           A)
   -- Runtime Function: unsigned short fract __fractunstiuqq (unsigned
            long long A)
!  -- Runtime Function: unsigned fract __fractunstiuhq (unsigned long long
!           A)
!  -- Runtime Function: unsigned long fract __fractunstiusq (unsigned long
            long A)
!  -- Runtime Function: unsigned long long fract __fractunstiudq (unsigned
            long long A)
   -- Runtime Function: unsigned short accum __fractunstiuha (unsigned
            long long A)
!  -- Runtime Function: unsigned accum __fractunstiusa (unsigned long long
!           A)
!  -- Runtime Function: unsigned long accum __fractunstiuda (unsigned long
            long A)
!  -- Runtime Function: unsigned long long accum __fractunstiuta (unsigned
            long long A)
       These functions convert from fractionals to unsigned
       non-fractionals; and from unsigned non-fractionals to fractionals,
       without saturation.
*************** File: gccint.info,  Node: Miscellaneous
*** 2943,2949 ****
   -- Runtime Function: void * __splitstack_find (void *SEGMENT_ARG, void
            *SP, size_t LEN, void **NEXT_SEGMENT, void **NEXT_SP, void
            **INITIAL_SP)
!      When using `-fsplit-stack', this call may be used to iterate over
       the stack segments.  It may be called like this:
              void *next_segment = NULL;
              void *next_sp = NULL;
--- 2940,2946 ----
   -- Runtime Function: void * __splitstack_find (void *SEGMENT_ARG, void
            *SP, size_t LEN, void **NEXT_SEGMENT, void **NEXT_SP, void
            **INITIAL_SP)
!      When using '-fsplit-stack', this call may be used to iterate over
       the stack segments.  It may be called like this:
              void *next_segment = NULL;
              void *next_sp = NULL;
*************** File: gccint.info,  Node: Miscellaneous
*** 2964,2978 ****
       with the SEGMENT_ARG and SP arguments NULL, to pass NEXT_SEGMENT,
       NEXT_SP, and INITIAL_SP to a different thread, and then to suspend
       one way or another.  A different thread may run the subsequent
!      `__splitstack_find' iterations.  Of course, this will only work if
       the first thread is suspended while the second thread is calling
!      `__splitstack_find'.  If not, the second thread could be looking
!      at the stack while it is changing, and anything could happen.
  
   -- Variable: __morestack_segments
   -- Variable: __morestack_current_segment
   -- Variable: __morestack_initial_sp
!      Internal variables used by the `-fsplit-stack' implementation.
  
  
  File: gccint.info,  Node: Languages,  Next: Source Tree,  Prev: Libgcc,  Up: Top
--- 2961,2975 ----
       with the SEGMENT_ARG and SP arguments NULL, to pass NEXT_SEGMENT,
       NEXT_SP, and INITIAL_SP to a different thread, and then to suspend
       one way or another.  A different thread may run the subsequent
!      '__splitstack_find' iterations.  Of course, this will only work if
       the first thread is suspended while the second thread is calling
!      '__splitstack_find'.  If not, the second thread could be looking at
!      the stack while it is changing, and anything could happen.
  
   -- Variable: __morestack_segments
   -- Variable: __morestack_current_segment
   -- Variable: __morestack_initial_sp
!      Internal variables used by the '-fsplit-stack' implementation.
  
  
  File: gccint.info,  Node: Languages,  Next: Source Tree,  Prev: Libgcc,  Up: Top
*************** File: gccint.info,  Node: Languages,  Ne
*** 2981,2987 ****
  ****************************
  
  The interface to front ends for languages in GCC, and in particular the
! `tree' structure (*note GENERIC::), was initially designed for C, and
  many aspects of it are still somewhat biased towards C and C-like
  languages.  It is, however, reasonably well suited to other procedural
  languages, and front ends for many such languages have been written for
--- 2978,2984 ----
  ****************************
  
  The interface to front ends for languages in GCC, and in particular the
! 'tree' structure (*note GENERIC::), was initially designed for C, and
  many aspects of it are still somewhat biased towards C and C-like
  languages.  It is, however, reasonably well suited to other procedural
  languages, and front ends for many such languages have been written for
*************** GCC, has several advantages:
*** 2993,3009 ****
  
     * GCC front ends benefit from the support for many different target
       machines already present in GCC.
- 
     * GCC front ends benefit from all the optimizations in GCC.  Some of
       these, such as alias analysis, may work better when GCC is
       compiling directly from source code then when it is compiling from
       generated C code.
- 
     * Better debugging information is generated when compiling directly
       from source code than when going via intermediate generated C code.
  
!  Because of the advantages of writing a compiler as a GCC front end,
! GCC front ends have also been created for languages very different from
  those for which GCC was designed, such as the declarative
  logic/functional language Mercury.  For these reasons, it may also be
  useful to implement compilers created for specialized purposes (for
--- 2990,3004 ----
  
     * GCC front ends benefit from the support for many different target
       machines already present in GCC.
     * GCC front ends benefit from all the optimizations in GCC.  Some of
       these, such as alias analysis, may work better when GCC is
       compiling directly from source code then when it is compiling from
       generated C code.
     * Better debugging information is generated when compiling directly
       from source code than when going via intermediate generated C code.
  
!  Because of the advantages of writing a compiler as a GCC front end, GCC
! front ends have also been created for languages very different from
  those for which GCC was designed, such as the declarative
  logic/functional language Mercury.  For these reasons, it may also be
  useful to implement compilers created for specialized purposes (for
*************** File: gccint.info,  Node: Source Tree,
*** 3015,3030 ****
  6 Source Tree Structure and Build System
  ****************************************
  
! This chapter describes the structure of the GCC source tree, and how
! GCC is built.  The user documentation for building and installing GCC
! is in a separate manual (`http://gcc.gnu.org/install/'), with which it
! is presumed that you are familiar.
  
  * Menu:
  
  * Configure Terms:: Configuration terminology and history.
  * Top Level::       The top level source directory.
! * gcc Directory::   The `gcc' subdirectory.
  
  
  File: gccint.info,  Node: Configure Terms,  Next: Top Level,  Up: Source Tree
--- 3010,3025 ----
  6 Source Tree Structure and Build System
  ****************************************
  
! This chapter describes the structure of the GCC source tree, and how GCC
! is built.  The user documentation for building and installing GCC is in
! a separate manual (<http://gcc.gnu.org/install/>), with which it is
! presumed that you are familiar.
  
  * Menu:
  
  * Configure Terms:: Configuration terminology and history.
  * Top Level::       The top level source directory.
! * gcc Directory::   The 'gcc' subdirectory.
  
  
  File: gccint.info,  Node: Configure Terms,  Next: Top Level,  Up: Source Tree
*************** know.
*** 3041,3087 ****
   There are three system names that the build knows about: the machine
  you are building on ("build"), the machine that you are building for
  ("host"), and the machine that GCC will produce code for ("target").
! When you configure GCC, you specify these with `--build=', `--host=',
! and `--target='.
  
   Specifying the host without specifying the build should be avoided, as
! `configure' may (and once did) assume that the host you specify is also
  the build, which may not be true.
  
!  If build, host, and target are all the same, this is called a
! "native".  If build and host are the same but target is different, this
! is called a "cross".  If build, host, and target are all different this
! is called a "canadian" (for obscure reasons dealing with Canada's
! political party and the background of the person working on the build
! at that time).  If host and target are the same, but build is
! different, you are using a cross-compiler to build a native for a
! different system.  Some people call this a "host-x-host", "crossed
! native", or "cross-built native".  If build and target are the same,
! but host is different, you are using a cross compiler to build a cross
! compiler that produces code for the machine you're building on.  This
! is rare, so there is no common way of describing it.  There is a
! proposal to call this a "crossback".
  
   If build and host are the same, the GCC you are building will also be
! used to build the target libraries (like `libstdc++').  If build and
  host are different, you must have already built and installed a cross
  compiler that will be used to build the target libraries (if you
! configured with `--target=foo-bar', this compiler will be called
! `foo-bar-gcc').
  
   In the case of target libraries, the machine you're building for is the
! machine you specified with `--target'.  So, build is the machine you're
  building on (no change there), host is the machine you're building for
  (the target libraries are built for the target, so host is the target
  you specified), and target doesn't apply (because you're not building a
  compiler, you're building libraries).  The configure/make process will
! adjust these variables as needed.  It also sets `$with_cross_host' to
! the original `--host' value in case you need it.
  
!  The `libiberty' support library is built up to three times: once for
  the host, once for the target (even if they are the same), and once for
! the build if build and host are different.  This allows it to be used
! by all programs which are generated in the course of the build process.
  
  
  File: gccint.info,  Node: Top Level,  Next: gcc Directory,  Prev: Configure Terms,  Up: Source Tree
--- 3036,3081 ----
   There are three system names that the build knows about: the machine
  you are building on ("build"), the machine that you are building for
  ("host"), and the machine that GCC will produce code for ("target").
! When you configure GCC, you specify these with '--build=', '--host=',
! and '--target='.
  
   Specifying the host without specifying the build should be avoided, as
! 'configure' may (and once did) assume that the host you specify is also
  the build, which may not be true.
  
!  If build, host, and target are all the same, this is called a "native".
! If build and host are the same but target is different, this is called a
! "cross".  If build, host, and target are all different this is called a
! "canadian" (for obscure reasons dealing with Canada's political party
! and the background of the person working on the build at that time).  If
! host and target are the same, but build is different, you are using a
! cross-compiler to build a native for a different system.  Some people
! call this a "host-x-host", "crossed native", or "cross-built native".
! If build and target are the same, but host is different, you are using a
! cross compiler to build a cross compiler that produces code for the
! machine you're building on.  This is rare, so there is no common way of
! describing it.  There is a proposal to call this a "crossback".
  
   If build and host are the same, the GCC you are building will also be
! used to build the target libraries (like 'libstdc++').  If build and
  host are different, you must have already built and installed a cross
  compiler that will be used to build the target libraries (if you
! configured with '--target=foo-bar', this compiler will be called
! 'foo-bar-gcc').
  
   In the case of target libraries, the machine you're building for is the
! machine you specified with '--target'.  So, build is the machine you're
  building on (no change there), host is the machine you're building for
  (the target libraries are built for the target, so host is the target
  you specified), and target doesn't apply (because you're not building a
  compiler, you're building libraries).  The configure/make process will
! adjust these variables as needed.  It also sets '$with_cross_host' to
! the original '--host' value in case you need it.
  
!  The 'libiberty' support library is built up to three times: once for
  the host, once for the target (even if they are the same), and once for
! the build if build and host are different.  This allows it to be used by
! all programs which are generated in the course of the build process.
  
  
  File: gccint.info,  Node: Top Level,  Next: gcc Directory,  Prev: Configure Terms,  Up: Source Tree
*************** files and directories that are shared wi
*** 3094,3223 ****
  such as that of GNU Binutils.  It also contains several subdirectories
  that contain parts of GCC and its runtime libraries:
  
! `boehm-gc'
       The Boehm conservative garbage collector, used as part of the Java
       runtime library.
  
! `config'
       Autoconf macros and Makefile fragments used throughout the tree.
  
! `contrib'
       Contributed scripts that may be found useful in conjunction with
!      GCC.  One of these, `contrib/texi2pod.pl', is used to generate man
       pages from Texinfo manuals as part of the GCC build process.
  
! `fixincludes'
       The support for fixing system headers to work with GCC.  See
!      `fixincludes/README' for more information.  The headers fixed by
!      this mechanism are installed in `LIBSUBDIR/include-fixed'.  Along
!      with those headers, `README-fixinc' is also installed, as
!      `LIBSUBDIR/include-fixed/README'.
  
! `gcc'
       The main sources of GCC itself (except for runtime libraries),
       including optimizers, support for different target architectures,
!      language front ends, and testsuites.  *Note The `gcc'
!      Subdirectory: gcc Directory, for details.
  
! `gnattools'
       Support tools for GNAT.
  
! `include'
!      Headers for the `libiberty' library.
  
! `intl'
!      GNU `libintl', from GNU `gettext', for systems which do not
!      include it in `libc'.
  
! `libada'
       The Ada runtime library.
  
! `libatomic'
!      The runtime support library for atomic operations (e.g. for
!      `__sync' and `__atomic').
  
! `libcpp'
       The C preprocessor library.
  
! `libdecnumber'
       The Decimal Float support library.
  
! `libffi'
!      The `libffi' library, used as part of the Java runtime library.
  
! `libgcc'
       The GCC runtime library.
  
! `libgfortran'
       The Fortran runtime library.
  
! `libgo'
       The Go runtime library.  The bulk of this library is mirrored from
       the master Go repository (http://code.google.com/p/go/).
  
! `libgomp'
       The GNU Offloading and Multi Processing Runtime Library.
  
! `libiberty'
!      The `libiberty' library, used for portability and for some
       generally useful data structures and algorithms.  *Note
       Introduction: (libiberty)Top, for more information about this
       library.
  
! `libitm'
       The runtime support library for transactional memory.
  
! `libjava'
       The Java runtime library.
  
! `libobjc'
       The Objective-C and Objective-C++ runtime library.
  
! `libquadmath'
       The runtime support library for quad-precision math operations.
  
! `libssp'
       The Stack protector runtime library.
  
! `libstdc++-v3'
       The C++ runtime library.
  
! `lto-plugin'
       Plugin used by the linker if link-time optimizations are enabled.
  
! `maintainer-scripts'
!      Scripts used by the `gccadmin' account on `gcc.gnu.org'.
  
! `zlib'
!      The `zlib' compression library, used by the Java front end, as
!      part of the Java runtime library, and for compressing and
!      uncompressing GCC's intermediate language in LTO object files.
  
   The build system in the top level directory, including how recursion
  into subdirectories works and how building runtime libraries for
  multilibs is handled, is documented in a separate manual, included with
! GNU Binutils.  *Note GNU configure and build system: (configure)Top,
! for details.
  
  
  File: gccint.info,  Node: gcc Directory,  Prev: Top Level,  Up: Source Tree
  
! 6.3 The `gcc' Subdirectory
  ==========================
  
! The `gcc' directory contains many files that are part of the C sources
! of GCC, other files used as part of the configuration and build
! process, and subdirectories including documentation and a testsuite.
! The files that are sources of GCC are documented in a separate chapter.
! *Note Passes and Files of the Compiler: Passes.
  
  * Menu:
  
! * Subdirectories:: Subdirectories of `gcc'.
  * Configuration::  The configuration process, and the files it uses.
! * Build::          The build system in the `gcc' directory.
! * Makefile::       Targets in `gcc/Makefile'.
! * Library Files::  Library source files and headers under `gcc/'.
  * Headers::        Headers installed by GCC.
  * Documentation::  Building documentation in GCC.
  * Front End::      Anatomy of a language front end.
--- 3088,3217 ----
  such as that of GNU Binutils.  It also contains several subdirectories
  that contain parts of GCC and its runtime libraries:
  
! 'boehm-gc'
       The Boehm conservative garbage collector, used as part of the Java
       runtime library.
  
! 'config'
       Autoconf macros and Makefile fragments used throughout the tree.
  
! 'contrib'
       Contributed scripts that may be found useful in conjunction with
!      GCC.  One of these, 'contrib/texi2pod.pl', is used to generate man
       pages from Texinfo manuals as part of the GCC build process.
  
! 'fixincludes'
       The support for fixing system headers to work with GCC.  See
!      'fixincludes/README' for more information.  The headers fixed by
!      this mechanism are installed in 'LIBSUBDIR/include-fixed'.  Along
!      with those headers, 'README-fixinc' is also installed, as
!      'LIBSUBDIR/include-fixed/README'.
  
! 'gcc'
       The main sources of GCC itself (except for runtime libraries),
       including optimizers, support for different target architectures,
!      language front ends, and testsuites.  *Note The 'gcc' Subdirectory:
!      gcc Directory, for details.
  
! 'gnattools'
       Support tools for GNAT.
  
! 'include'
!      Headers for the 'libiberty' library.
  
! 'intl'
!      GNU 'libintl', from GNU 'gettext', for systems which do not include
!      it in 'libc'.
  
! 'libada'
       The Ada runtime library.
  
! 'libatomic'
!      The runtime support library for atomic operations (e.g.  for
!      '__sync' and '__atomic').
  
! 'libcpp'
       The C preprocessor library.
  
! 'libdecnumber'
       The Decimal Float support library.
  
! 'libffi'
!      The 'libffi' library, used as part of the Java runtime library.
  
! 'libgcc'
       The GCC runtime library.
  
! 'libgfortran'
       The Fortran runtime library.
  
! 'libgo'
       The Go runtime library.  The bulk of this library is mirrored from
       the master Go repository (http://code.google.com/p/go/).
  
! 'libgomp'
       The GNU Offloading and Multi Processing Runtime Library.
  
! 'libiberty'
!      The 'libiberty' library, used for portability and for some
       generally useful data structures and algorithms.  *Note
       Introduction: (libiberty)Top, for more information about this
       library.
  
! 'libitm'
       The runtime support library for transactional memory.
  
! 'libjava'
       The Java runtime library.
  
! 'libobjc'
       The Objective-C and Objective-C++ runtime library.
  
! 'libquadmath'
       The runtime support library for quad-precision math operations.
  
! 'libssp'
       The Stack protector runtime library.
  
! 'libstdc++-v3'
       The C++ runtime library.
  
! 'lto-plugin'
       Plugin used by the linker if link-time optimizations are enabled.
  
! 'maintainer-scripts'
!      Scripts used by the 'gccadmin' account on 'gcc.gnu.org'.
  
! 'zlib'
!      The 'zlib' compression library, used by the Java front end, as part
!      of the Java runtime library, and for compressing and uncompressing
!      GCC's intermediate language in LTO object files.
  
   The build system in the top level directory, including how recursion
  into subdirectories works and how building runtime libraries for
  multilibs is handled, is documented in a separate manual, included with
! GNU Binutils.  *Note GNU configure and build system: (configure)Top, for
! details.
  
  
  File: gccint.info,  Node: gcc Directory,  Prev: Top Level,  Up: Source Tree
  
! 6.3 The 'gcc' Subdirectory
  ==========================
  
! The 'gcc' directory contains many files that are part of the C sources
! of GCC, other files used as part of the configuration and build process,
! and subdirectories including documentation and a testsuite.  The files
! that are sources of GCC are documented in a separate chapter.  *Note
! Passes and Files of the Compiler: Passes.
  
  * Menu:
  
! * Subdirectories:: Subdirectories of 'gcc'.
  * Configuration::  The configuration process, and the files it uses.
! * Build::          The build system in the 'gcc' directory.
! * Makefile::       Targets in 'gcc/Makefile'.
! * Library Files::  Library source files and headers under 'gcc/'.
  * Headers::        Headers installed by GCC.
  * Documentation::  Building documentation in GCC.
  * Front End::      Anatomy of a language front end.
*************** The files that are sources of GCC are do
*** 3226,3347 ****
  
  File: gccint.info,  Node: Subdirectories,  Next: Configuration,  Up: gcc Directory
  
! 6.3.1 Subdirectories of `gcc'
  -----------------------------
  
! The `gcc' directory contains the following subdirectories:
  
! `LANGUAGE'
       Subdirectories for various languages.  Directories containing a
!      file `config-lang.in' are language subdirectories.  The contents of
!      the subdirectories `c' (for C), `cp' (for C++), `objc' (for
!      Objective-C), `objcp' (for Objective-C++), and `lto' (for LTO) are
       documented in this manual (*note Passes and Files of the Compiler:
       Passes.); those for other languages are not.  *Note Anatomy of a
       Language Front End: Front End, for details of the files in these
       directories.
  
! `common'
!      Source files shared between the compiler drivers (such as `gcc')
!      and the compilers proper (such as `cc1').  If an architecture
       defines target hooks shared between those places, it also has a
!      subdirectory in `common/config'.  *Note Target Structure::.
  
! `config'
       Configuration files for supported architectures and operating
!      systems.  *Note Anatomy of a Target Back End: Back End, for
!      details of the files in this directory.
  
! `doc'
       Texinfo documentation for GCC, together with automatically
       generated man pages and support for converting the installation
       manual to HTML.  *Note Documentation::.
  
! `ginclude'
       System headers installed by GCC, mainly those required by the C
       standard of freestanding implementations.  *Note Headers Installed
       by GCC: Headers, for details of when these and other headers are
       installed.
  
! `po'
       Message catalogs with translations of messages produced by GCC into
!      various languages, `LANGUAGE.po'.  This directory also contains
!      `gcc.pot', the template for these message catalogues, `exgettext',
!      a wrapper around `gettext' to extract the messages from the GCC
!      sources and create `gcc.pot', which is run by `make gcc.pot', and
!      `EXCLUDES', a list of files from which messages should not be
       extracted.
  
! `testsuite'
!      The GCC testsuites (except for those for runtime libraries).
!      *Note Testsuites::.
  
  
  File: gccint.info,  Node: Configuration,  Next: Build,  Prev: Subdirectories,  Up: gcc Directory
  
! 6.3.2 Configuration in the `gcc' Directory
  ------------------------------------------
  
! The `gcc' directory is configured with an Autoconf-generated script
! `configure'.  The `configure' script is generated from `configure.ac'
! and `aclocal.m4'.  From the files `configure.ac' and `acconfig.h',
! Autoheader generates the file `config.in'.  The file `cstamp-h.in' is
  used as a timestamp.
  
  * Menu:
  
! * Config Fragments::     Scripts used by `configure'.
! * System Config::        The `config.build', `config.host', and
!                          `config.gcc' files.
! * Configuration Files::  Files created by running `configure'.
  
  
  File: gccint.info,  Node: Config Fragments,  Next: System Config,  Up: Configuration
  
! 6.3.2.1 Scripts Used by `configure'
  ...................................
  
! `configure' uses some other scripts to help in its work:
  
!    * The standard GNU `config.sub' and `config.guess' files, kept in
!      the top level directory, are used.
  
!    * The file `config.gcc' is used to handle configuration specific to
!      the particular target machine.  The file `config.build' is used to
!      handle configuration specific to the particular build machine.
!      The file `config.host' is used to handle configuration specific to
!      the particular host machine.  (In general, these should only be
!      used for features that cannot reasonably be tested in Autoconf
!      feature tests.)  *Note The `config.build'; `config.host'; and
!      `config.gcc' Files: System Config, for details of the contents of
!      these files.
  
!    * Each language subdirectory has a file `LANGUAGE/config-lang.in'
!      that is used for front-end-specific configuration.  *Note The
!      Front End `config-lang.in' File: Front End Config, for details of
!      this file.
  
!    * A helper script `configure.frag' is used as part of creating the
!      output of `configure'.
  
  
  File: gccint.info,  Node: System Config,  Next: Configuration Files,  Prev: Config Fragments,  Up: Configuration
  
! 6.3.2.2 The `config.build'; `config.host'; and `config.gcc' Files
  .................................................................
  
! The `config.build' file contains specific rules for particular systems
  which GCC is built on.  This should be used as rarely as possible, as
  the behavior of the build system can always be detected by autoconf.
  
!  The `config.host' file contains specific rules for particular systems
  which GCC will run on.  This is rarely needed.
  
!  The `config.gcc' file contains specific rules for particular systems
  which GCC will generate code for.  This is usually needed.
  
!  Each file has a list of the shell variables it sets, with
! descriptions, at the top of the file.
  
   FIXME: document the contents of these files, and what variables should
  be set to control build, host and target configuration.
--- 3220,3340 ----
  
  File: gccint.info,  Node: Subdirectories,  Next: Configuration,  Up: gcc Directory
  
! 6.3.1 Subdirectories of 'gcc'
  -----------------------------
  
! The 'gcc' directory contains the following subdirectories:
  
! 'LANGUAGE'
       Subdirectories for various languages.  Directories containing a
!      file 'config-lang.in' are language subdirectories.  The contents of
!      the subdirectories 'c' (for C), 'cp' (for C++), 'objc' (for
!      Objective-C), 'objcp' (for Objective-C++), and 'lto' (for LTO) are
       documented in this manual (*note Passes and Files of the Compiler:
       Passes.); those for other languages are not.  *Note Anatomy of a
       Language Front End: Front End, for details of the files in these
       directories.
  
! 'common'
!      Source files shared between the compiler drivers (such as 'gcc')
!      and the compilers proper (such as 'cc1').  If an architecture
       defines target hooks shared between those places, it also has a
!      subdirectory in 'common/config'.  *Note Target Structure::.
  
! 'config'
       Configuration files for supported architectures and operating
!      systems.  *Note Anatomy of a Target Back End: Back End, for details
!      of the files in this directory.
  
! 'doc'
       Texinfo documentation for GCC, together with automatically
       generated man pages and support for converting the installation
       manual to HTML.  *Note Documentation::.
  
! 'ginclude'
       System headers installed by GCC, mainly those required by the C
       standard of freestanding implementations.  *Note Headers Installed
       by GCC: Headers, for details of when these and other headers are
       installed.
  
! 'po'
       Message catalogs with translations of messages produced by GCC into
!      various languages, 'LANGUAGE.po'.  This directory also contains
!      'gcc.pot', the template for these message catalogues, 'exgettext',
!      a wrapper around 'gettext' to extract the messages from the GCC
!      sources and create 'gcc.pot', which is run by 'make gcc.pot', and
!      'EXCLUDES', a list of files from which messages should not be
       extracted.
  
! 'testsuite'
!      The GCC testsuites (except for those for runtime libraries).  *Note
!      Testsuites::.
  
  
  File: gccint.info,  Node: Configuration,  Next: Build,  Prev: Subdirectories,  Up: gcc Directory
  
! 6.3.2 Configuration in the 'gcc' Directory
  ------------------------------------------
  
! The 'gcc' directory is configured with an Autoconf-generated script
! 'configure'.  The 'configure' script is generated from 'configure.ac'
! and 'aclocal.m4'.  From the files 'configure.ac' and 'acconfig.h',
! Autoheader generates the file 'config.in'.  The file 'cstamp-h.in' is
  used as a timestamp.
  
  * Menu:
  
! * Config Fragments::     Scripts used by 'configure'.
! * System Config::        The 'config.build', 'config.host', and
!                          'config.gcc' files.
! * Configuration Files::  Files created by running 'configure'.
  
  
  File: gccint.info,  Node: Config Fragments,  Next: System Config,  Up: Configuration
  
! 6.3.2.1 Scripts Used by 'configure'
  ...................................
  
! 'configure' uses some other scripts to help in its work:
  
!    * The standard GNU 'config.sub' and 'config.guess' files, kept in the
!      top level directory, are used.
  
!    * The file 'config.gcc' is used to handle configuration specific to
!      the particular target machine.  The file 'config.build' is used to
!      handle configuration specific to the particular build machine.  The
!      file 'config.host' is used to handle configuration specific to the
!      particular host machine.  (In general, these should only be used
!      for features that cannot reasonably be tested in Autoconf feature
!      tests.)  *Note The 'config.build'; 'config.host'; and 'config.gcc'
!      Files: System Config, for details of the contents of these files.
  
!    * Each language subdirectory has a file 'LANGUAGE/config-lang.in'
!      that is used for front-end-specific configuration.  *Note The Front
!      End 'config-lang.in' File: Front End Config, for details of this
!      file.
  
!    * A helper script 'configure.frag' is used as part of creating the
!      output of 'configure'.
  
  
  File: gccint.info,  Node: System Config,  Next: Configuration Files,  Prev: Config Fragments,  Up: Configuration
  
! 6.3.2.2 The 'config.build'; 'config.host'; and 'config.gcc' Files
  .................................................................
  
! The 'config.build' file contains specific rules for particular systems
  which GCC is built on.  This should be used as rarely as possible, as
  the behavior of the build system can always be detected by autoconf.
  
!  The 'config.host' file contains specific rules for particular systems
  which GCC will run on.  This is rarely needed.
  
!  The 'config.gcc' file contains specific rules for particular systems
  which GCC will generate code for.  This is usually needed.
  
!  Each file has a list of the shell variables it sets, with descriptions,
! at the top of the file.
  
   FIXME: document the contents of these files, and what variables should
  be set to control build, host and target configuration.
*************** be set to control build, host and target
*** 3349,3417 ****
  
  File: gccint.info,  Node: Configuration Files,  Prev: System Config,  Up: Configuration
  
! 6.3.2.3 Files Created by `configure'
  ....................................
  
! Here we spell out what files will be set up by `configure' in the `gcc'
  directory.  Some other files are created as temporary files in the
  configuration process, and are not used in the subsequent build; these
  are not documented.
  
!    * `Makefile' is constructed from `Makefile.in', together with the
       host and target fragments (*note Makefile Fragments: Fragments.)
!      `t-TARGET' and `x-HOST' from `config', if any, and language
!      Makefile fragments `LANGUAGE/Make-lang.in'.
! 
!    * `auto-host.h' contains information about the host machine
!      determined by `configure'.  If the host machine is different from
!      the build machine, then `auto-build.h' is also created, containing
       such information about the build machine.
! 
!    * `config.status' is a script that may be run to recreate the
!      current configuration.
! 
!    * `configargs.h' is a header containing details of the arguments
!      passed to `configure' to configure GCC, and of the thread model
       used.
! 
!    * `cstamp-h' is used as a timestamp.
! 
!    * If a language `config-lang.in' file (*note The Front End
!      `config-lang.in' File: Front End Config.) sets `outputs', then the
!      files listed in `outputs' there are also generated.
  
   The following configuration headers are created from the Makefile,
! using `mkconfig.sh', rather than directly by `configure'.  `config.h',
! `bconfig.h' and `tconfig.h' all contain the `xm-MACHINE.h' header, if
  any, appropriate to the host, build and target machines respectively,
  the configuration headers for the target, and some definitions; for the
  host and build machines, these include the autoconfigured headers
! generated by `configure'.  The other configuration headers are
! determined by `config.gcc'.  They also contain the typedefs for `rtx',
! `rtvec' and `tree'.
! 
!    * `config.h', for use in programs that run on the host machine.
! 
!    * `bconfig.h', for use in programs that run on the build machine.
  
!    * `tconfig.h', for use in programs and libraries for the target
       machine.
! 
!    * `tm_p.h', which includes the header `MACHINE-protos.h' that
!      contains prototypes for functions in the target `MACHINE.c' file.
!      The header `MACHINE-protos.h' can include prototypes of functions
!      that use rtl and tree data structures inside appropriate `#ifdef
!      RTX_CODE' and `#ifdef TREE_CODE' conditional code segements.  The
!      `MACHINE-protos.h' is included after the `rtl.h' and/or `tree.h'
!      would have been included.  The `tm_p.h' also includes the header
!      `tm-preds.h' which is generated by `genpreds' program during the
       build to define the declarations and inline functions for the
       predicate functions.
  
  
  File: gccint.info,  Node: Build,  Next: Makefile,  Prev: Configuration,  Up: gcc Directory
  
! 6.3.3 Build System in the `gcc' Directory
  -----------------------------------------
  
  FIXME: describe the build system, including what is built in what
--- 3342,3402 ----
  
  File: gccint.info,  Node: Configuration Files,  Prev: System Config,  Up: Configuration
  
! 6.3.2.3 Files Created by 'configure'
  ....................................
  
! Here we spell out what files will be set up by 'configure' in the 'gcc'
  directory.  Some other files are created as temporary files in the
  configuration process, and are not used in the subsequent build; these
  are not documented.
  
!    * 'Makefile' is constructed from 'Makefile.in', together with the
       host and target fragments (*note Makefile Fragments: Fragments.)
!      't-TARGET' and 'x-HOST' from 'config', if any, and language
!      Makefile fragments 'LANGUAGE/Make-lang.in'.
!    * 'auto-host.h' contains information about the host machine
!      determined by 'configure'.  If the host machine is different from
!      the build machine, then 'auto-build.h' is also created, containing
       such information about the build machine.
!    * 'config.status' is a script that may be run to recreate the current
!      configuration.
!    * 'configargs.h' is a header containing details of the arguments
!      passed to 'configure' to configure GCC, and of the thread model
       used.
!    * 'cstamp-h' is used as a timestamp.
!    * If a language 'config-lang.in' file (*note The Front End
!      'config-lang.in' File: Front End Config.) sets 'outputs', then the
!      files listed in 'outputs' there are also generated.
  
   The following configuration headers are created from the Makefile,
! using 'mkconfig.sh', rather than directly by 'configure'.  'config.h',
! 'bconfig.h' and 'tconfig.h' all contain the 'xm-MACHINE.h' header, if
  any, appropriate to the host, build and target machines respectively,
  the configuration headers for the target, and some definitions; for the
  host and build machines, these include the autoconfigured headers
! generated by 'configure'.  The other configuration headers are
! determined by 'config.gcc'.  They also contain the typedefs for 'rtx',
! 'rtvec' and 'tree'.
  
!    * 'config.h', for use in programs that run on the host machine.
!    * 'bconfig.h', for use in programs that run on the build machine.
!    * 'tconfig.h', for use in programs and libraries for the target
       machine.
!    * 'tm_p.h', which includes the header 'MACHINE-protos.h' that
!      contains prototypes for functions in the target 'MACHINE.c' file.
!      The header 'MACHINE-protos.h' can include prototypes of functions
!      that use rtl and tree data structures inside appropriate '#ifdef
!      RTX_CODE' and '#ifdef TREE_CODE' conditional code segements.  The
!      'MACHINE-protos.h' is included after the 'rtl.h' and/or 'tree.h'
!      would have been included.  The 'tm_p.h' also includes the header
!      'tm-preds.h' which is generated by 'genpreds' program during the
       build to define the declarations and inline functions for the
       predicate functions.
  
  
  File: gccint.info,  Node: Build,  Next: Makefile,  Prev: Configuration,  Up: gcc Directory
  
! 6.3.3 Build System in the 'gcc' Directory
  -----------------------------------------
  
  FIXME: describe the build system, including what is built in what
*************** File: gccint.info,  Node: Makefile,  Nex
*** 3425,3492 ****
  6.3.4 Makefile Targets
  ----------------------
  
! These targets are available from the `gcc' directory:
  
! `all'
       This is the default target.  Depending on what your
       build/host/target configuration is, it coordinates all the things
       that need to be built.
  
! `doc'
       Produce info-formatted documentation and man pages.  Essentially it
!      calls `make man' and `make info'.
  
! `dvi'
       Produce DVI-formatted documentation.
  
! `pdf'
       Produce PDF-formatted documentation.
  
! `html'
       Produce HTML-formatted documentation.
  
! `man'
       Generate man pages.
  
! `info'
       Generate info-formatted pages.
  
! `mostlyclean'
       Delete the files made while building the compiler.
  
! `clean'
!      That, and all the other files built by `make all'.
  
! `distclean'
!      That, and all the files created by `configure'.
  
! `maintainer-clean'
       Distclean plus any file that can be generated from other files.
       Note that additional tools may be required beyond what is normally
       needed to build GCC.
  
! `srcextra'
       Generates files in the source directory that are not
       version-controlled but should go into a release tarball.
  
! `srcinfo'
! `srcman'
       Copies the info-formatted and manpage documentation into the source
       directory usually for the purpose of generating a release tarball.
  
! `install'
       Installs GCC.
  
! `uninstall'
       Deletes installed files, though this is not supported.
  
! `check'
!      Run the testsuite.  This creates a `testsuite' subdirectory that
!      has various `.sum' and `.log' files containing the results of the
!      testing.  You can run subsets with, for example, `make check-gcc'.
!      You can specify specific tests by setting `RUNTESTFLAGS' to be the
!      name of the `.exp' file, optionally followed by (for some tests)
!      an equals and a file wildcard, like:
  
            make check-gcc RUNTESTFLAGS="execute.exp=19980413-*"
  
--- 3410,3477 ----
  6.3.4 Makefile Targets
  ----------------------
  
! These targets are available from the 'gcc' directory:
  
! 'all'
       This is the default target.  Depending on what your
       build/host/target configuration is, it coordinates all the things
       that need to be built.
  
! 'doc'
       Produce info-formatted documentation and man pages.  Essentially it
!      calls 'make man' and 'make info'.
  
! 'dvi'
       Produce DVI-formatted documentation.
  
! 'pdf'
       Produce PDF-formatted documentation.
  
! 'html'
       Produce HTML-formatted documentation.
  
! 'man'
       Generate man pages.
  
! 'info'
       Generate info-formatted pages.
  
! 'mostlyclean'
       Delete the files made while building the compiler.
  
! 'clean'
!      That, and all the other files built by 'make all'.
  
! 'distclean'
!      That, and all the files created by 'configure'.
  
! 'maintainer-clean'
       Distclean plus any file that can be generated from other files.
       Note that additional tools may be required beyond what is normally
       needed to build GCC.
  
! 'srcextra'
       Generates files in the source directory that are not
       version-controlled but should go into a release tarball.
  
! 'srcinfo'
! 'srcman'
       Copies the info-formatted and manpage documentation into the source
       directory usually for the purpose of generating a release tarball.
  
! 'install'
       Installs GCC.
  
! 'uninstall'
       Deletes installed files, though this is not supported.
  
! 'check'
!      Run the testsuite.  This creates a 'testsuite' subdirectory that
!      has various '.sum' and '.log' files containing the results of the
!      testing.  You can run subsets with, for example, 'make check-gcc'.
!      You can specify specific tests by setting 'RUNTESTFLAGS' to be the
!      name of the '.exp' file, optionally followed by (for some tests) an
!      equals and a file wildcard, like:
  
            make check-gcc RUNTESTFLAGS="execute.exp=19980413-*"
  
*************** steps of the build, including bootstrapp
*** 3499,3590 ****
  new compiler to build target libraries.
  
   When GCC is configured for a native configuration, the default action
! for `make' is to do a full three-stage bootstrap.  This means that GCC
  is built three times--once with the native compiler, once with the
! native-built compiler it just built, and once with the compiler it
! built the second time.  In theory, the last two should produce the same
! results, which `make compare' can check.  Each stage is configured
  separately and compiled into a separate directory, to minimize problems
  due to ABI incompatibilities between the native compiler and GCC.
  
!  If you do a change, rebuilding will also start from the first stage
! and "bubble" up the change through the three stages.  Each stage is
! taken from its build directory (if it had been built previously),
! rebuilt, and copied to its subdirectory.  This will allow you to, for
! example, continue a bootstrap after fixing a bug which causes the
! stage2 build to crash.  It does not provide as good coverage of the
! compiler as bootstrapping from scratch, but it ensures that the new
! code is syntactically correct (e.g., that you did not use GCC extensions
! by mistake), and avoids spurious bootstrap comparison failures(1).
  
   Other targets available from the top level include:
  
! `bootstrap-lean'
!      Like `bootstrap', except that the various stages are removed once
       they're no longer needed.  This saves disk space.
  
! `bootstrap2'
! `bootstrap2-lean'
       Performs only the first two stages of bootstrap.  Unlike a
       three-stage bootstrap, this does not perform a comparison to test
       that the compiler is running properly.  Note that the disk space
       required by a "lean" bootstrap is approximately independent of the
       number of stages.
  
! `stageN-bubble (N = 1...4, profile, feedback)'
       Rebuild all the stages up to N, with the appropriate flags,
       "bubbling" the changes as described above.
  
! `all-stageN (N = 1...4, profile, feedback)'
       Assuming that stage N has already been built, rebuild it with the
       appropriate flags.  This is rarely needed.
  
! `cleanstrap'
!      Remove everything (`make clean') and rebuilds (`make bootstrap').
  
! `compare'
       Compares the results of stages 2 and 3.  This ensures that the
       compiler is running properly, since it should produce the same
       object files regardless of how it itself was compiled.
  
! `profiledbootstrap'
       Builds a compiler with profiling feedback information.  In this
!      case, the second and third stages are named `profile' and
!      `feedback', respectively.  For more information, see *note
!      Building with profile feedback: (gccinstall)Building.
  
! `restrap'
!      Restart a bootstrap, so that everything that was not built with
!      the system compiler is rebuilt.
  
! `stageN-start (N = 1...4, profile, feedback)'
       For each package that is bootstrapped, rename directories so that,
!      for example, `gcc' points to the stageN GCC, compiled with the
       stageN-1 GCC(2).
  
!      You will invoke this target if you need to test or debug the
!      stageN GCC.  If you only need to execute GCC (but you need not run
!      `make' either to rebuild it or to run test suites), you should be
!      able to work directly in the `stageN-gcc' directory.  This makes
!      it easier to debug multiple stages in parallel.
  
! `stage'
       For each package that is bootstrapped, relocate its build directory
!      to indicate its stage.  For example, if the `gcc' directory points
!      to the stage2 GCC, after invoking this target it will be renamed
!      to `stage2-gcc'.
! 
  
   If you wish to use non-default GCC flags when compiling the stage2 and
! stage3 compilers, set `BOOT_CFLAGS' on the command line when doing
! `make'.
  
!  Usually, the first stage only builds the languages that the compiler
! is written in: typically, C and maybe Ada.  If you are debugging a
  miscompilation of a different stage2 front-end (for example, of the
  Fortran front-end), you may want to have front-ends for other languages
! in the first stage as well.  To do so, set `STAGE1_LANGUAGES' on the
! command line when doing `make'.
  
   For example, in the aforementioned scenario of debugging a Fortran
  front-end miscompilation caused by the stage1 compiler, you may need a
--- 3484,3574 ----
  new compiler to build target libraries.
  
   When GCC is configured for a native configuration, the default action
! for 'make' is to do a full three-stage bootstrap.  This means that GCC
  is built three times--once with the native compiler, once with the
! native-built compiler it just built, and once with the compiler it built
! the second time.  In theory, the last two should produce the same
! results, which 'make compare' can check.  Each stage is configured
  separately and compiled into a separate directory, to minimize problems
  due to ABI incompatibilities between the native compiler and GCC.
  
!  If you do a change, rebuilding will also start from the first stage and
! "bubble" up the change through the three stages.  Each stage is taken
! from its build directory (if it had been built previously), rebuilt, and
! copied to its subdirectory.  This will allow you to, for example,
! continue a bootstrap after fixing a bug which causes the stage2 build to
! crash.  It does not provide as good coverage of the compiler as
! bootstrapping from scratch, but it ensures that the new code is
! syntactically correct (e.g., that you did not use GCC extensions by
! mistake), and avoids spurious bootstrap comparison failures(1).
  
   Other targets available from the top level include:
  
! 'bootstrap-lean'
!      Like 'bootstrap', except that the various stages are removed once
       they're no longer needed.  This saves disk space.
  
! 'bootstrap2'
! 'bootstrap2-lean'
       Performs only the first two stages of bootstrap.  Unlike a
       three-stage bootstrap, this does not perform a comparison to test
       that the compiler is running properly.  Note that the disk space
       required by a "lean" bootstrap is approximately independent of the
       number of stages.
  
! 'stageN-bubble (N = 1...4, profile, feedback)'
       Rebuild all the stages up to N, with the appropriate flags,
       "bubbling" the changes as described above.
  
! 'all-stageN (N = 1...4, profile, feedback)'
       Assuming that stage N has already been built, rebuild it with the
       appropriate flags.  This is rarely needed.
  
! 'cleanstrap'
!      Remove everything ('make clean') and rebuilds ('make bootstrap').
  
! 'compare'
       Compares the results of stages 2 and 3.  This ensures that the
       compiler is running properly, since it should produce the same
       object files regardless of how it itself was compiled.
  
! 'profiledbootstrap'
       Builds a compiler with profiling feedback information.  In this
!      case, the second and third stages are named 'profile' and
!      'feedback', respectively.  For more information, see *note Building
!      with profile feedback: (gccinstall)Building.
  
! 'restrap'
!      Restart a bootstrap, so that everything that was not built with the
!      system compiler is rebuilt.
  
! 'stageN-start (N = 1...4, profile, feedback)'
       For each package that is bootstrapped, rename directories so that,
!      for example, 'gcc' points to the stageN GCC, compiled with the
       stageN-1 GCC(2).
  
!      You will invoke this target if you need to test or debug the stageN
!      GCC.  If you only need to execute GCC (but you need not run 'make'
!      either to rebuild it or to run test suites), you should be able to
!      work directly in the 'stageN-gcc' directory.  This makes it easier
!      to debug multiple stages in parallel.
  
! 'stage'
       For each package that is bootstrapped, relocate its build directory
!      to indicate its stage.  For example, if the 'gcc' directory points
!      to the stage2 GCC, after invoking this target it will be renamed to
!      'stage2-gcc'.
  
   If you wish to use non-default GCC flags when compiling the stage2 and
! stage3 compilers, set 'BOOT_CFLAGS' on the command line when doing
! 'make'.
  
!  Usually, the first stage only builds the languages that the compiler is
! written in: typically, C and maybe Ada.  If you are debugging a
  miscompilation of a different stage2 front-end (for example, of the
  Fortran front-end), you may want to have front-ends for other languages
! in the first stage as well.  To do so, set 'STAGE1_LANGUAGES' on the
! command line when doing 'make'.
  
   For example, in the aforementioned scenario of debugging a Fortran
  front-end miscompilation caused by the stage1 compiler, you may need a
*************** command like
*** 3593,3620 ****
       make stage2-bubble STAGE1_LANGUAGES=c,fortran
  
   Alternatively, you can use per-language targets to build and test
! languages that are not enabled by default in stage1.  For example,
! `make f951' will build a Fortran compiler even in the stage1 build
! directory.
  
!  ---------- Footnotes ----------
  
!  (1) Except if the compiler was buggy and miscompiled some of the files
! that were not modified.  In this case, it's best to use `make restrap'.
  
!  (2) Customarily, the system compiler is also termed the `stage0' GCC.
  
  
  File: gccint.info,  Node: Library Files,  Next: Headers,  Prev: Makefile,  Up: gcc Directory
  
! 6.3.5 Library Source Files and Headers under the `gcc' Directory
  ----------------------------------------------------------------
  
  FIXME: list here, with explanation, all the C source files and headers
! under the `gcc' directory that aren't built into the GCC executable but
  rather are part of runtime libraries and object files, such as
! `crtstuff.c' and `unwind-dw2.c'.  *Note Headers Installed by GCC:
! Headers, for more information about the `ginclude' directory.
  
  
  File: gccint.info,  Node: Headers,  Next: Documentation,  Prev: Library Files,  Up: gcc Directory
--- 3577,3604 ----
       make stage2-bubble STAGE1_LANGUAGES=c,fortran
  
   Alternatively, you can use per-language targets to build and test
! languages that are not enabled by default in stage1.  For example, 'make
! f951' will build a Fortran compiler even in the stage1 build directory.
  
!    ---------- Footnotes ----------
  
!    (1) Except if the compiler was buggy and miscompiled some of the
! files that were not modified.  In this case, it's best to use 'make
! restrap'.
  
!    (2) Customarily, the system compiler is also termed the 'stage0' GCC.
  
  
  File: gccint.info,  Node: Library Files,  Next: Headers,  Prev: Makefile,  Up: gcc Directory
  
! 6.3.5 Library Source Files and Headers under the 'gcc' Directory
  ----------------------------------------------------------------
  
  FIXME: list here, with explanation, all the C source files and headers
! under the 'gcc' directory that aren't built into the GCC executable but
  rather are part of runtime libraries and object files, such as
! 'crtstuff.c' and 'unwind-dw2.c'.  *Note Headers Installed by GCC:
! Headers, for more information about the 'ginclude' directory.
  
  
  File: gccint.info,  Node: Headers,  Next: Documentation,  Prev: Library Files,  Up: gcc Directory
*************** In general, GCC expects the system C lib
*** 3626,3663 ****
  headers to be used with it.  However, GCC will fix those headers if
  necessary to make them work with GCC, and will install some headers
  required of freestanding implementations.  These headers are installed
! in `LIBSUBDIR/include'.  Headers for non-C runtime libraries are also
  installed by GCC; these are not documented here.  (FIXME: document them
  somewhere.)
  
!  Several of the headers GCC installs are in the `ginclude' directory.
! These headers, `iso646.h', `stdarg.h', `stdbool.h', and `stddef.h', are
! installed in `LIBSUBDIR/include', unless the target Makefile fragment
! (*note Target Fragment::) overrides this by setting `USER_H'.
  
   In addition to these headers and those generated by fixing system
  headers to work with GCC, some other headers may also be installed in
! `LIBSUBDIR/include'.  `config.gcc' may set `extra_headers'; this
! specifies additional headers under `config' to be installed on some
  systems.
  
!  GCC installs its own version of `<float.h>', from `ginclude/float.h'.
  This is done to cope with command-line options that change the
  representation of floating point numbers.
  
!  GCC also installs its own version of `<limits.h>'; this is generated
! from `glimits.h', together with `limitx.h' and `limity.h' if the system
! also has its own version of `<limits.h>'.  (GCC provides its own header
  because it is required of ISO C freestanding implementations, but needs
  to include the system header from its own header as well because other
  standards such as POSIX specify additional values to be defined in
! `<limits.h>'.)  The system's `<limits.h>' header is used via
! `LIBSUBDIR/include/syslimits.h', which is copied from `gsyslimits.h' if
  it does not need fixing to work with GCC; if it needs fixing,
! `syslimits.h' is the fixed copy.
  
!  GCC can also install `<tgmath.h>'.  It will do this when `config.gcc'
! sets `use_gcc_tgmath' to `yes'.
  
  
  File: gccint.info,  Node: Documentation,  Next: Front End,  Prev: Headers,  Up: gcc Directory
--- 3610,3647 ----
  headers to be used with it.  However, GCC will fix those headers if
  necessary to make them work with GCC, and will install some headers
  required of freestanding implementations.  These headers are installed
! in 'LIBSUBDIR/include'.  Headers for non-C runtime libraries are also
  installed by GCC; these are not documented here.  (FIXME: document them
  somewhere.)
  
!  Several of the headers GCC installs are in the 'ginclude' directory.
! These headers, 'iso646.h', 'stdarg.h', 'stdbool.h', and 'stddef.h', are
! installed in 'LIBSUBDIR/include', unless the target Makefile fragment
! (*note Target Fragment::) overrides this by setting 'USER_H'.
  
   In addition to these headers and those generated by fixing system
  headers to work with GCC, some other headers may also be installed in
! 'LIBSUBDIR/include'.  'config.gcc' may set 'extra_headers'; this
! specifies additional headers under 'config' to be installed on some
  systems.
  
!  GCC installs its own version of '<float.h>', from 'ginclude/float.h'.
  This is done to cope with command-line options that change the
  representation of floating point numbers.
  
!  GCC also installs its own version of '<limits.h>'; this is generated
! from 'glimits.h', together with 'limitx.h' and 'limity.h' if the system
! also has its own version of '<limits.h>'.  (GCC provides its own header
  because it is required of ISO C freestanding implementations, but needs
  to include the system header from its own header as well because other
  standards such as POSIX specify additional values to be defined in
! '<limits.h>'.)  The system's '<limits.h>' header is used via
! 'LIBSUBDIR/include/syslimits.h', which is copied from 'gsyslimits.h' if
  it does not need fixing to work with GCC; if it needs fixing,
! 'syslimits.h' is the fixed copy.
  
!  GCC can also install '<tgmath.h>'.  It will do this when 'config.gcc'
! sets 'use_gcc_tgmath' to 'yes'.
  
  
  File: gccint.info,  Node: Documentation,  Next: Front End,  Prev: Headers,  Up: gcc Directory
*************** File: gccint.info,  Node: Documentation,
*** 3667,3677 ****
  
  The main GCC documentation is in the form of manuals in Texinfo format.
  These are installed in Info format; DVI versions may be generated by
! `make dvi', PDF versions by `make pdf', and HTML versions by `make
  html'.  In addition, some man pages are generated from the Texinfo
  manuals, there are some other text files with miscellaneous
  documentation, and runtime libraries have their own documentation
! outside the `gcc' directory.  FIXME: document the documentation for
  runtime libraries somewhere.
  
  * Menu:
--- 3651,3661 ----
  
  The main GCC documentation is in the form of manuals in Texinfo format.
  These are installed in Info format; DVI versions may be generated by
! 'make dvi', PDF versions by 'make pdf', and HTML versions by 'make
  html'.  In addition, some man pages are generated from the Texinfo
  manuals, there are some other text files with miscellaneous
  documentation, and runtime libraries have their own documentation
! outside the 'gcc' directory.  FIXME: document the documentation for
  runtime libraries somewhere.
  
  * Menu:
*************** File: gccint.info,  Node: Texinfo Manual
*** 3687,3739 ****
  .......................
  
  The manuals for GCC as a whole, and the C and C++ front ends, are in
! files `doc/*.texi'.  Other front ends have their own manuals in files
! `LANGUAGE/*.texi'.  Common files `doc/include/*.texi' are provided
! which may be included in multiple manuals; the following files are in
! `doc/include':
  
! `fdl.texi'
       The GNU Free Documentation License.
! 
! `funding.texi'
       The section "Funding Free Software".
! 
! `gcc-common.texi'
       Common definitions for manuals.
! 
! `gpl_v3.texi'
       The GNU General Public License.
  
! `texinfo.tex'
!      A copy of `texinfo.tex' known to work with the GCC manuals.
! 
!  DVI-formatted manuals are generated by `make dvi', which uses
! `texi2dvi' (via the Makefile macro `$(TEXI2DVI)').  PDF-formatted
! manuals are generated by `make pdf', which uses `texi2pdf' (via the
! Makefile macro `$(TEXI2PDF)').  HTML formatted manuals are generated by
! `make html'.  Info manuals are generated by `make info' (which is run
! as part of a bootstrap); this generates the manuals in the source
! directory, using `makeinfo' via the Makefile macro `$(MAKEINFO)', and
  they are included in release distributions.
  
   Manuals are also provided on the GCC web site, in both HTML and
  PostScript forms.  This is done via the script
! `maintainer-scripts/update_web_docs_svn'.  Each manual to be provided
! online must be listed in the definition of `MANUALS' in that file; a
! file `NAME.texi' must only appear once in the source tree, and the
  output manual must have the same name as the source file.  (However,
  other Texinfo files, included in manuals but not themselves the root
  files of manuals, may have names that appear more than once in the
! source tree.)  The manual file `NAME.texi' should only include other
! files in its own directory or in `doc/include'.  HTML manuals will be
! generated by `makeinfo --html', PostScript manuals by `texi2dvi' and
! `dvips', and PDF manuals by `texi2pdf'.  All Texinfo files that are
  parts of manuals must be version-controlled, even if they are generated
  files, for the generation of online manuals to work.
  
!  The installation manual, `doc/install.texi', is also provided on the
  GCC web site.  The HTML version is generated by the script
! `doc/install.texi2html'.
  
  
  File: gccint.info,  Node: Man Page Generation,  Next: Miscellaneous Docs,  Prev: Texinfo Manuals,  Up: Documentation
--- 3671,3719 ----
  .......................
  
  The manuals for GCC as a whole, and the C and C++ front ends, are in
! files 'doc/*.texi'.  Other front ends have their own manuals in files
! 'LANGUAGE/*.texi'.  Common files 'doc/include/*.texi' are provided which
! may be included in multiple manuals; the following files are in
! 'doc/include':
  
! 'fdl.texi'
       The GNU Free Documentation License.
! 'funding.texi'
       The section "Funding Free Software".
! 'gcc-common.texi'
       Common definitions for manuals.
! 'gpl_v3.texi'
       The GNU General Public License.
+ 'texinfo.tex'
+      A copy of 'texinfo.tex' known to work with the GCC manuals.
  
!  DVI-formatted manuals are generated by 'make dvi', which uses
! 'texi2dvi' (via the Makefile macro '$(TEXI2DVI)').  PDF-formatted
! manuals are generated by 'make pdf', which uses 'texi2pdf' (via the
! Makefile macro '$(TEXI2PDF)').  HTML formatted manuals are generated by
! 'make html'.  Info manuals are generated by 'make info' (which is run as
! part of a bootstrap); this generates the manuals in the source
! directory, using 'makeinfo' via the Makefile macro '$(MAKEINFO)', and
  they are included in release distributions.
  
   Manuals are also provided on the GCC web site, in both HTML and
  PostScript forms.  This is done via the script
! 'maintainer-scripts/update_web_docs_svn'.  Each manual to be provided
! online must be listed in the definition of 'MANUALS' in that file; a
! file 'NAME.texi' must only appear once in the source tree, and the
  output manual must have the same name as the source file.  (However,
  other Texinfo files, included in manuals but not themselves the root
  files of manuals, may have names that appear more than once in the
! source tree.)  The manual file 'NAME.texi' should only include other
! files in its own directory or in 'doc/include'.  HTML manuals will be
! generated by 'makeinfo --html', PostScript manuals by 'texi2dvi' and
! 'dvips', and PDF manuals by 'texi2pdf'.  All Texinfo files that are
  parts of manuals must be version-controlled, even if they are generated
  files, for the generation of online manuals to work.
  
!  The installation manual, 'doc/install.texi', is also provided on the
  GCC web site.  The HTML version is generated by the script
! 'doc/install.texi2html'.
  
  
  File: gccint.info,  Node: Man Page Generation,  Next: Miscellaneous Docs,  Prev: Texinfo Manuals,  Up: Documentation
*************** File: gccint.info,  Node: Man Page Gener
*** 3742,3781 ****
  ...........................
  
  Because of user demand, in addition to full Texinfo manuals, man pages
! are provided which contain extracts from those manuals.  These man
! pages are generated from the Texinfo manuals using
! `contrib/texi2pod.pl' and `pod2man'.  (The man page for `g++',
! `cp/g++.1', just contains a `.so' reference to `gcc.1', but all the
! other man pages are generated from Texinfo manuals.)
  
   Because many systems may not have the necessary tools installed to
! generate the man pages, they are only generated if the `configure'
! script detects that recent enough tools are installed, and the
! Makefiles allow generating man pages to fail without aborting the
! build.  Man pages are also included in release distributions.  They are
! generated in the source directory.
  
!  Magic comments in Texinfo files starting `@c man' control what parts
! of a Texinfo file go into a man page.  Only a subset of Texinfo is
! supported by `texi2pod.pl', and it may be necessary to add support for
  more Texinfo features to this script when generating new man pages.  To
! improve the man page output, some special Texinfo macros are provided
! in `doc/include/gcc-common.texi' which `texi2pod.pl' understands:
! 
! `@gcctabopt'
!      Use in the form `@table @gcctabopt' for tables of options, where
!      for printed output the effect of `@code' is better than that of
!      `@option' but for man page output a different effect is wanted.
  
! `@gccoptlist'
       Use for summary lists of options in manuals.
! 
! `@gol'
!      Use at the end of each line inside `@gccoptlist'.  This is
       necessary to avoid problems with differences in how the
!      `@gccoptlist' macro is handled by different Texinfo formatters.
  
!  FIXME: describe the `texi2pod.pl' input language and magic comments in
  more detail.
  
  
--- 3722,3759 ----
  ...........................
  
  Because of user demand, in addition to full Texinfo manuals, man pages
! are provided which contain extracts from those manuals.  These man pages
! are generated from the Texinfo manuals using 'contrib/texi2pod.pl' and
! 'pod2man'.  (The man page for 'g++', 'cp/g++.1', just contains a '.so'
! reference to 'gcc.1', but all the other man pages are generated from
! Texinfo manuals.)
  
   Because many systems may not have the necessary tools installed to
! generate the man pages, they are only generated if the 'configure'
! script detects that recent enough tools are installed, and the Makefiles
! allow generating man pages to fail without aborting the build.  Man
! pages are also included in release distributions.  They are generated in
! the source directory.
  
!  Magic comments in Texinfo files starting '@c man' control what parts of
! a Texinfo file go into a man page.  Only a subset of Texinfo is
! supported by 'texi2pod.pl', and it may be necessary to add support for
  more Texinfo features to this script when generating new man pages.  To
! improve the man page output, some special Texinfo macros are provided in
! 'doc/include/gcc-common.texi' which 'texi2pod.pl' understands:
  
! '@gcctabopt'
!      Use in the form '@table @gcctabopt' for tables of options, where
!      for printed output the effect of '@code' is better than that of
!      '@option' but for man page output a different effect is wanted.
! '@gccoptlist'
       Use for summary lists of options in manuals.
! '@gol'
!      Use at the end of each line inside '@gccoptlist'.  This is
       necessary to avoid problems with differences in how the
!      '@gccoptlist' macro is handled by different Texinfo formatters.
  
!  FIXME: describe the 'texi2pod.pl' input language and magic comments in
  more detail.
  
  
*************** File: gccint.info,  Node: Miscellaneous
*** 3785,3828 ****
  ...................................
  
  In addition to the formal documentation that is installed by GCC, there
! are several other text files in the `gcc' subdirectory with
  miscellaneous documentation:
  
! `ABOUT-GCC-NLS'
!      Notes on GCC's Native Language Support.  FIXME: this should be
!      part of this manual rather than a separate file.
! 
! `ABOUT-NLS'
       Notes on the Free Translation Project.
! 
! `COPYING'
! `COPYING3'
       The GNU General Public License, Versions 2 and 3.
! 
! `COPYING.LIB'
! `COPYING3.LIB'
       The GNU Lesser General Public License, Versions 2.1 and 3.
! 
! `*ChangeLog*'
! `*/ChangeLog*'
       Change log files for various parts of GCC.
! 
! `LANGUAGES'
       Details of a few changes to the GCC front-end interface.  FIXME:
       the information in this file should be part of general
       documentation of the front-end interface in this manual.
! 
! `ONEWS'
       Information about new features in old versions of GCC.  (For recent
       versions, the information is on the GCC web site.)
! 
! `README.Portability'
       Information about portability issues when writing code in GCC.
       FIXME: why isn't this part of this manual or of the GCC Coding
       Conventions?
  
!  FIXME: document such files in subdirectories, at least `config', `c',
! `cp', `objc', `testsuite'.
  
  
  File: gccint.info,  Node: Front End,  Next: Back End,  Prev: Documentation,  Up: gcc Directory
--- 3763,3799 ----
  ...................................
  
  In addition to the formal documentation that is installed by GCC, there
! are several other text files in the 'gcc' subdirectory with
  miscellaneous documentation:
  
! 'ABOUT-GCC-NLS'
!      Notes on GCC's Native Language Support.  FIXME: this should be part
!      of this manual rather than a separate file.
! 'ABOUT-NLS'
       Notes on the Free Translation Project.
! 'COPYING'
! 'COPYING3'
       The GNU General Public License, Versions 2 and 3.
! 'COPYING.LIB'
! 'COPYING3.LIB'
       The GNU Lesser General Public License, Versions 2.1 and 3.
! '*ChangeLog*'
! '*/ChangeLog*'
       Change log files for various parts of GCC.
! 'LANGUAGES'
       Details of a few changes to the GCC front-end interface.  FIXME:
       the information in this file should be part of general
       documentation of the front-end interface in this manual.
! 'ONEWS'
       Information about new features in old versions of GCC.  (For recent
       versions, the information is on the GCC web site.)
! 'README.Portability'
       Information about portability issues when writing code in GCC.
       FIXME: why isn't this part of this manual or of the GCC Coding
       Conventions?
  
!  FIXME: document such files in subdirectories, at least 'config', 'c',
! 'cp', 'objc', 'testsuite'.
  
  
  File: gccint.info,  Node: Front End,  Next: Back End,  Prev: Documentation,  Up: gcc Directory
*************** File: gccint.info,  Node: Front End,  Ne
*** 3832,3880 ****
  
  A front end for a language in GCC has the following parts:
  
!    * A directory `LANGUAGE' under `gcc' containing source files for
!      that front end.  *Note The Front End `LANGUAGE' Directory: Front
!      End Directory, for details.
! 
     * A mention of the language in the list of supported languages in
!      `gcc/doc/install.texi'.
! 
     * A mention of the name under which the language's runtime library is
!      recognized by `--enable-shared=PACKAGE' in the documentation of
!      that option in `gcc/doc/install.texi'.
! 
     * A mention of any special prerequisites for building the front end
!      in the documentation of prerequisites in `gcc/doc/install.texi'.
! 
     * Details of contributors to that front end in
!      `gcc/doc/contrib.texi'.  If the details are in that front end's
!      own manual then there should be a link to that manual's list in
!      `contrib.texi'.
! 
     * Information about support for that language in
!      `gcc/doc/frontends.texi'.
! 
     * Information about standards for that language, and the front end's
!      support for them, in `gcc/doc/standards.texi'.  This may be a link
       to such information in the front end's own manual.
! 
!    * Details of source file suffixes for that language and `-x LANG'
!      options supported, in `gcc/doc/invoke.texi'.
! 
!    * Entries in `default_compilers' in `gcc.c' for source file suffixes
       for that language.
! 
!    * Preferably testsuites, which may be under `gcc/testsuite' or
       runtime library directories.  FIXME: document somewhere how to
       write testsuite harnesses.
! 
!    * Probably a runtime library for the language, outside the `gcc'
       directory.  FIXME: document this further.
- 
     * Details of the directories of any runtime libraries in
!      `gcc/doc/sourcebuild.texi'.
! 
!    * Check targets in `Makefile.def' for the top-level `Makefile' to
       check just the compiler or the compiler and runtime library for the
       language.
  
--- 3803,3839 ----
  
  A front end for a language in GCC has the following parts:
  
!    * A directory 'LANGUAGE' under 'gcc' containing source files for that
!      front end.  *Note The Front End 'LANGUAGE' Directory: Front End
!      Directory, for details.
     * A mention of the language in the list of supported languages in
!      'gcc/doc/install.texi'.
     * A mention of the name under which the language's runtime library is
!      recognized by '--enable-shared=PACKAGE' in the documentation of
!      that option in 'gcc/doc/install.texi'.
     * A mention of any special prerequisites for building the front end
!      in the documentation of prerequisites in 'gcc/doc/install.texi'.
     * Details of contributors to that front end in
!      'gcc/doc/contrib.texi'.  If the details are in that front end's own
!      manual then there should be a link to that manual's list in
!      'contrib.texi'.
     * Information about support for that language in
!      'gcc/doc/frontends.texi'.
     * Information about standards for that language, and the front end's
!      support for them, in 'gcc/doc/standards.texi'.  This may be a link
       to such information in the front end's own manual.
!    * Details of source file suffixes for that language and '-x LANG'
!      options supported, in 'gcc/doc/invoke.texi'.
!    * Entries in 'default_compilers' in 'gcc.c' for source file suffixes
       for that language.
!    * Preferably testsuites, which may be under 'gcc/testsuite' or
       runtime library directories.  FIXME: document somewhere how to
       write testsuite harnesses.
!    * Probably a runtime library for the language, outside the 'gcc'
       directory.  FIXME: document this further.
     * Details of the directories of any runtime libraries in
!      'gcc/doc/sourcebuild.texi'.
!    * Check targets in 'Makefile.def' for the top-level 'Makefile' to
       check just the compiler or the compiler and runtime library for the
       language.
  
*************** A front end for a language in GCC has th
*** 3882,4126 ****
  following are also necessary:
  
     * At least one Bugzilla component for bugs in that front end and
!      runtime libraries.  This category needs to be added to the
!      Bugzilla database.
! 
     * Normally, one or more maintainers of that front end listed in
!      `MAINTAINERS'.
! 
!    * Mentions on the GCC web site in `index.html' and `frontends.html',
!      with any relevant links on `readings.html'.  (Front ends that are
!      not an official part of GCC may also be listed on
!      `frontends.html', with relevant links.)
! 
!    * A news item on `index.html', and possibly an announcement on the
       <gcc-announce@gcc.gnu.org> mailing list.
- 
     * The front end's manuals should be mentioned in
!      `maintainer-scripts/update_web_docs_svn' (*note Texinfo Manuals::)
       and the online manuals should be linked to from
!      `onlinedocs/index.html'.
! 
     * Any old releases or CVS repositories of the front end, before its
       inclusion in GCC, should be made available on the GCC FTP site
!      `ftp://gcc.gnu.org/pub/gcc/old-releases/'.
! 
!    * The release and snapshot script `maintainer-scripts/gcc_release'
       should be updated to generate appropriate tarballs for this front
       end.
- 
     * If this front end includes its own version files that include the
!      current date, `maintainer-scripts/update_version' should be
!      updated accordingly.
  
  * Menu:
  
! * Front End Directory::  The front end `LANGUAGE' directory.
! * Front End Config::     The front end `config-lang.in' file.
! * Front End Makefile::   The front end `Make-lang.in' file.
  
  
  File: gccint.info,  Node: Front End Directory,  Next: Front End Config,  Up: Front End
  
! 6.3.8.1 The Front End `LANGUAGE' Directory
  ..........................................
  
! A front end `LANGUAGE' directory contains the source files of that
! front end (but not of any runtime libraries, which should be outside
! the `gcc' directory).  This includes documentation, and possibly some
! subsidiary programs built alongside the front end.  Certain files are
! special and other parts of the compiler depend on their names:
  
! `config-lang.in'
       This file is required in all language subdirectories.  *Note The
!      Front End `config-lang.in' File: Front End Config, for details of
       its contents
! 
! `Make-lang.in'
       This file is required in all language subdirectories.  *Note The
!      Front End `Make-lang.in' File: Front End Makefile, for details of
       its contents.
! 
! `lang.opt'
       This file registers the set of switches that the front end accepts
!      on the command line, and their `--help' text.  *Note Options::.
! 
! `lang-specs.h'
!      This file provides entries for `default_compilers' in `gcc.c'
!      which override the default of giving an error that a compiler for
!      that language is not installed.
! 
! `LANGUAGE-tree.def'
       This file, which need not exist, defines any language-specific tree
       codes.
  
  
  File: gccint.info,  Node: Front End Config,  Next: Front End Makefile,  Prev: Front End Directory,  Up: Front End
  
! 6.3.8.2 The Front End `config-lang.in' File
  ...........................................
  
! Each language subdirectory contains a `config-lang.in' file.  This file
  is a shell script that may define some variables describing the
  language:
  
! `language'
       This definition must be present, and gives the name of the language
!      for some purposes such as arguments to `--enable-languages'.
! 
! `lang_requires'
       If defined, this variable lists (space-separated) language front
       ends other than C that this front end requires to be enabled (with
!      the names given being their `language' settings).  For example, the
       Java front end depends on the C++ front end, so sets
!      `lang_requires=c++'.
! 
! `subdir_requires'
       If defined, this variable lists (space-separated) front end
       directories other than C that this front end requires to be
       present.  For example, the Objective-C++ front end uses source
       files from the C++ and Objective-C front ends, so sets
!      `subdir_requires="cp objc"'.
! 
! `target_libs'
       If defined, this variable lists (space-separated) targets in the
!      top level `Makefile' to build the runtime libraries for this
!      language, such as `target-libobjc'.
! 
! `lang_dirs'
       If defined, this variable lists (space-separated) top level
!      directories (parallel to `gcc'), apart from the runtime libraries,
       that should not be configured if this front end is not built.
! 
! `build_by_default'
!      If defined to `no', this language front end is not built unless
!      enabled in a `--enable-languages' argument.  Otherwise, front ends
       are built by default, subject to any special logic in
!      `configure.ac' (as is present to disable the Ada front end if the
       Ada compiler is not already installed).
! 
! `boot_language'
!      If defined to `yes', this front end is built in stage1 of the
       bootstrap.  This is only relevant to front ends written in their
       own languages.
! 
! `compilers'
       If defined, a space-separated list of compiler executables that
       will be run by the driver.  The names here will each end with
!      `\$(exeext)'.
! 
! `outputs'
       If defined, a space-separated list of files that should be
!      generated by `configure' substituting values in them.  This
!      mechanism can be used to create a file `LANGUAGE/Makefile' from
!      `LANGUAGE/Makefile.in', but this is deprecated, building
!      everything from the single `gcc/Makefile' is preferred.
! 
! `gtfiles'
       If defined, a space-separated list of files that should be scanned
!      by `gengtype.c' to generate the garbage collection tables and
       routines for this language.  This excludes the files that are
       common to all front ends.  *Note Type Information::.
  
- 
  
  File: gccint.info,  Node: Front End Makefile,  Prev: Front End Config,  Up: Front End
  
! 6.3.8.3 The Front End `Make-lang.in' File
  .........................................
  
! Each language subdirectory contains a `Make-lang.in' file.  It contains
! targets `LANG.HOOK' (where `LANG' is the setting of `language' in
! `config-lang.in') for the following values of `HOOK', and any other
  Makefile rules required to build those targets (which may if necessary
! use other Makefiles specified in `outputs' in `config-lang.in',
! although this is deprecated).  It also adds any testsuite targets that
! can use the standard rule in `gcc/Makefile.in' to the variable
! `lang_checks'.
  
! `all.cross'
! `start.encap'
! `rest.encap'
       FIXME: exactly what goes in each of these targets?
! 
! `tags'
!      Build an `etags' `TAGS' file in the language subdirectory in the
       source tree.
! 
! `info'
       Build info documentation for the front end, in the build directory.
!      This target is only called by `make bootstrap' if a suitable
!      version of `makeinfo' is available, so does not need to check for
       this, and should fail if an error occurs.
! 
! `dvi'
       Build DVI documentation for the front end, in the build directory.
!      This should be done using `$(TEXI2DVI)', with appropriate `-I'
       arguments pointing to directories of included files.
! 
! `pdf'
       Build PDF documentation for the front end, in the build directory.
!      This should be done using `$(TEXI2PDF)', with appropriate `-I'
       arguments pointing to directories of included files.
! 
! `html'
       Build HTML documentation for the front end, in the build directory.
! 
! `man'
       Build generated man pages for the front end from Texinfo manuals
       (*note Man Page Generation::), in the build directory.  This target
       is only called if the necessary tools are available, but should
       ignore errors so as not to stop the build if errors occur; man
       pages are optional and the tools involved may be installed in a
       broken way.
! 
! `install-common'
       Install everything that is part of the front end, apart from the
!      compiler executables listed in `compilers' in `config-lang.in'.
! 
! `install-info'
       Install info documentation for the front end, if it is present in
!      the source directory.  This target should have dependencies on
!      info files that should be installed.
! 
! `install-man'
       Install man pages for the front end.  This target should ignore
       errors.
! 
! `install-plugin'
       Install headers needed for plugins.
! 
! `srcextra'
       Copies its dependencies into the source directory.  This generally
!      should be used for generated files such as Bison output files
!      which are not version-controlled, but should be included in any
!      release tarballs.  This target will be executed during a bootstrap
!      if `--enable-generated-files-in-srcdir' was specified as a
!      `configure' option.
! 
! `srcinfo'
! `srcman'
       Copies its dependencies into the source directory.  These targets
       will be executed during a bootstrap if
!      `--enable-generated-files-in-srcdir' was specified as a
!      `configure' option.
! 
! `uninstall'
       Uninstall files installed by installing the compiler.  This is
       currently documented not to be supported, so the hook need not do
       anything.
! 
! `mostlyclean'
! `clean'
! `distclean'
! `maintainer-clean'
!      The language parts of the standard GNU `*clean' targets.  *Note
       Standard Targets for Users: (standards)Standard Targets, for
!      details of the standard targets.  For GCC, `maintainer-clean'
       should delete all generated files in the source directory that are
       not version-controlled, but should not delete anything that is.
  
!  `Make-lang.in' must also define a variable `LANG_OBJS' to a list of
  host object files that are used by that language.
  
  
--- 3841,4049 ----
  following are also necessary:
  
     * At least one Bugzilla component for bugs in that front end and
!      runtime libraries.  This category needs to be added to the Bugzilla
!      database.
     * Normally, one or more maintainers of that front end listed in
!      'MAINTAINERS'.
!    * Mentions on the GCC web site in 'index.html' and 'frontends.html',
!      with any relevant links on 'readings.html'.  (Front ends that are
!      not an official part of GCC may also be listed on 'frontends.html',
!      with relevant links.)
!    * A news item on 'index.html', and possibly an announcement on the
       <gcc-announce@gcc.gnu.org> mailing list.
     * The front end's manuals should be mentioned in
!      'maintainer-scripts/update_web_docs_svn' (*note Texinfo Manuals::)
       and the online manuals should be linked to from
!      'onlinedocs/index.html'.
     * Any old releases or CVS repositories of the front end, before its
       inclusion in GCC, should be made available on the GCC FTP site
!      <ftp://gcc.gnu.org/pub/gcc/old-releases/>.
!    * The release and snapshot script 'maintainer-scripts/gcc_release'
       should be updated to generate appropriate tarballs for this front
       end.
     * If this front end includes its own version files that include the
!      current date, 'maintainer-scripts/update_version' should be updated
!      accordingly.
  
  * Menu:
  
! * Front End Directory::  The front end 'LANGUAGE' directory.
! * Front End Config::     The front end 'config-lang.in' file.
! * Front End Makefile::   The front end 'Make-lang.in' file.
  
  
  File: gccint.info,  Node: Front End Directory,  Next: Front End Config,  Up: Front End
  
! 6.3.8.1 The Front End 'LANGUAGE' Directory
  ..........................................
  
! A front end 'LANGUAGE' directory contains the source files of that front
! end (but not of any runtime libraries, which should be outside the 'gcc'
! directory).  This includes documentation, and possibly some subsidiary
! programs built alongside the front end.  Certain files are special and
! other parts of the compiler depend on their names:
  
! 'config-lang.in'
       This file is required in all language subdirectories.  *Note The
!      Front End 'config-lang.in' File: Front End Config, for details of
       its contents
! 'Make-lang.in'
       This file is required in all language subdirectories.  *Note The
!      Front End 'Make-lang.in' File: Front End Makefile, for details of
       its contents.
! 'lang.opt'
       This file registers the set of switches that the front end accepts
!      on the command line, and their '--help' text.  *Note Options::.
! 'lang-specs.h'
!      This file provides entries for 'default_compilers' in 'gcc.c' which
!      override the default of giving an error that a compiler for that
!      language is not installed.
! 'LANGUAGE-tree.def'
       This file, which need not exist, defines any language-specific tree
       codes.
  
  
  File: gccint.info,  Node: Front End Config,  Next: Front End Makefile,  Prev: Front End Directory,  Up: Front End
  
! 6.3.8.2 The Front End 'config-lang.in' File
  ...........................................
  
! Each language subdirectory contains a 'config-lang.in' file.  This file
  is a shell script that may define some variables describing the
  language:
  
! 'language'
       This definition must be present, and gives the name of the language
!      for some purposes such as arguments to '--enable-languages'.
! 'lang_requires'
       If defined, this variable lists (space-separated) language front
       ends other than C that this front end requires to be enabled (with
!      the names given being their 'language' settings).  For example, the
       Java front end depends on the C++ front end, so sets
!      'lang_requires=c++'.
! 'subdir_requires'
       If defined, this variable lists (space-separated) front end
       directories other than C that this front end requires to be
       present.  For example, the Objective-C++ front end uses source
       files from the C++ and Objective-C front ends, so sets
!      'subdir_requires="cp objc"'.
! 'target_libs'
       If defined, this variable lists (space-separated) targets in the
!      top level 'Makefile' to build the runtime libraries for this
!      language, such as 'target-libobjc'.
! 'lang_dirs'
       If defined, this variable lists (space-separated) top level
!      directories (parallel to 'gcc'), apart from the runtime libraries,
       that should not be configured if this front end is not built.
! 'build_by_default'
!      If defined to 'no', this language front end is not built unless
!      enabled in a '--enable-languages' argument.  Otherwise, front ends
       are built by default, subject to any special logic in
!      'configure.ac' (as is present to disable the Ada front end if the
       Ada compiler is not already installed).
! 'boot_language'
!      If defined to 'yes', this front end is built in stage1 of the
       bootstrap.  This is only relevant to front ends written in their
       own languages.
! 'compilers'
       If defined, a space-separated list of compiler executables that
       will be run by the driver.  The names here will each end with
!      '\$(exeext)'.
! 'outputs'
       If defined, a space-separated list of files that should be
!      generated by 'configure' substituting values in them.  This
!      mechanism can be used to create a file 'LANGUAGE/Makefile' from
!      'LANGUAGE/Makefile.in', but this is deprecated, building everything
!      from the single 'gcc/Makefile' is preferred.
! 'gtfiles'
       If defined, a space-separated list of files that should be scanned
!      by 'gengtype.c' to generate the garbage collection tables and
       routines for this language.  This excludes the files that are
       common to all front ends.  *Note Type Information::.
  
  
  File: gccint.info,  Node: Front End Makefile,  Prev: Front End Config,  Up: Front End
  
! 6.3.8.3 The Front End 'Make-lang.in' File
  .........................................
  
! Each language subdirectory contains a 'Make-lang.in' file.  It contains
! targets 'LANG.HOOK' (where 'LANG' is the setting of 'language' in
! 'config-lang.in') for the following values of 'HOOK', and any other
  Makefile rules required to build those targets (which may if necessary
! use other Makefiles specified in 'outputs' in 'config-lang.in', although
! this is deprecated).  It also adds any testsuite targets that can use
! the standard rule in 'gcc/Makefile.in' to the variable 'lang_checks'.
  
! 'all.cross'
! 'start.encap'
! 'rest.encap'
       FIXME: exactly what goes in each of these targets?
! 'tags'
!      Build an 'etags' 'TAGS' file in the language subdirectory in the
       source tree.
! 'info'
       Build info documentation for the front end, in the build directory.
!      This target is only called by 'make bootstrap' if a suitable
!      version of 'makeinfo' is available, so does not need to check for
       this, and should fail if an error occurs.
! 'dvi'
       Build DVI documentation for the front end, in the build directory.
!      This should be done using '$(TEXI2DVI)', with appropriate '-I'
       arguments pointing to directories of included files.
! 'pdf'
       Build PDF documentation for the front end, in the build directory.
!      This should be done using '$(TEXI2PDF)', with appropriate '-I'
       arguments pointing to directories of included files.
! 'html'
       Build HTML documentation for the front end, in the build directory.
! 'man'
       Build generated man pages for the front end from Texinfo manuals
       (*note Man Page Generation::), in the build directory.  This target
       is only called if the necessary tools are available, but should
       ignore errors so as not to stop the build if errors occur; man
       pages are optional and the tools involved may be installed in a
       broken way.
! 'install-common'
       Install everything that is part of the front end, apart from the
!      compiler executables listed in 'compilers' in 'config-lang.in'.
! 'install-info'
       Install info documentation for the front end, if it is present in
!      the source directory.  This target should have dependencies on info
!      files that should be installed.
! 'install-man'
       Install man pages for the front end.  This target should ignore
       errors.
! 'install-plugin'
       Install headers needed for plugins.
! 'srcextra'
       Copies its dependencies into the source directory.  This generally
!      should be used for generated files such as Bison output files which
!      are not version-controlled, but should be included in any release
!      tarballs.  This target will be executed during a bootstrap if
!      '--enable-generated-files-in-srcdir' was specified as a 'configure'
!      option.
! 'srcinfo'
! 'srcman'
       Copies its dependencies into the source directory.  These targets
       will be executed during a bootstrap if
!      '--enable-generated-files-in-srcdir' was specified as a 'configure'
!      option.
! 'uninstall'
       Uninstall files installed by installing the compiler.  This is
       currently documented not to be supported, so the hook need not do
       anything.
! 'mostlyclean'
! 'clean'
! 'distclean'
! 'maintainer-clean'
!      The language parts of the standard GNU '*clean' targets.  *Note
       Standard Targets for Users: (standards)Standard Targets, for
!      details of the standard targets.  For GCC, 'maintainer-clean'
       should delete all generated files in the source directory that are
       not version-controlled, but should not delete anything that is.
  
!  'Make-lang.in' must also define a variable 'LANG_OBJS' to a list of
  host object files that are used by that language.
  
  
*************** File: gccint.info,  Node: Back End,  Pre
*** 4131,4214 ****
  
  A back end for a target architecture in GCC has the following parts:
  
!    * A directory `MACHINE' under `gcc/config', containing a machine
!      description `MACHINE.md' file (*note Machine Descriptions: Machine
!      Desc.), header files `MACHINE.h' and `MACHINE-protos.h' and a
!      source file `MACHINE.c' (*note Target Description Macros and
       Functions: Target Macros.), possibly a target Makefile fragment
!      `t-MACHINE' (*note The Target Makefile Fragment: Target
!      Fragment.), and maybe some other files.  The names of these files
!      may be changed from the defaults given by explicit specifications
!      in `config.gcc'.
! 
!    * If necessary, a file `MACHINE-modes.def' in the `MACHINE'
       directory, containing additional machine modes to represent
       condition codes.  *Note Condition Code::, for further details.
! 
!    * An optional `MACHINE.opt' file in the `MACHINE' directory,
       containing a list of target-specific options.  You can also add
!      other option files using the `extra_options' variable in
!      `config.gcc'.  *Note Options::.
! 
!    * Entries in `config.gcc' (*note The `config.gcc' File: System
       Config.) for the systems with this target architecture.
! 
!    * Documentation in `gcc/doc/invoke.texi' for any command-line
!      options supported by this target (*note Run-time Target
!      Specification: Run-time Target.).  This means both entries in the
!      summary table of options and details of the individual options.
! 
!    * Documentation in `gcc/doc/extend.texi' for any target-specific
       attributes supported (*note Defining target-specific uses of
!      `__attribute__': Target Attributes.), including where the same
       attribute is already supported on some targets, which are
       enumerated in the manual.
! 
!    * Documentation in `gcc/doc/extend.texi' for any target-specific
       pragmas supported.
! 
!    * Documentation in `gcc/doc/extend.texi' of any target-specific
       built-in functions supported.
! 
!    * Documentation in `gcc/doc/extend.texi' of any target-specific
       format checking styles supported.
! 
!    * Documentation in `gcc/doc/md.texi' of any target-specific
       constraint letters (*note Constraints for Particular Machines:
       Machine Constraints.).
! 
!    * A note in `gcc/doc/contrib.texi' under the person or people who
       contributed the target support.
! 
!    * Entries in `gcc/doc/install.texi' for all target triplets
!      supported with this target architecture, giving details of any
!      special notes about installation for this target, or saying that
!      there are no special notes if there are none.
! 
!    * Possibly other support outside the `gcc' directory for runtime
!      libraries.  FIXME: reference docs for this.  The `libstdc++'
       porting manual needs to be installed as info for this to work, or
       to be a chapter of this manual.
  
   If the back end is added to the official GCC source repository, the
  following are also necessary:
  
!    * An entry for the target architecture in `readings.html' on the GCC
       web site, with any relevant links.
- 
     * Details of the properties of the back end and target architecture
!      in `backends.html' on the GCC web site.
! 
     * A news item about the contribution of support for that target
!      architecture, in `index.html' on the GCC web site.
! 
     * Normally, one or more maintainers of that target listed in
!      `MAINTAINERS'.  Some existing architectures may be unmaintained,
       but it would be unusual to add support for a target that does not
       have a maintainer when support is added.
! 
!    * Target triplets covering all `config.gcc' stanzas for the target,
!      in the list in `contrib/config-list.mk'.
  
  
  File: gccint.info,  Node: Testsuites,  Next: Options,  Prev: Source Tree,  Up: Top
--- 4054,4121 ----
  
  A back end for a target architecture in GCC has the following parts:
  
!    * A directory 'MACHINE' under 'gcc/config', containing a machine
!      description 'MACHINE.md' file (*note Machine Descriptions: Machine
!      Desc.), header files 'MACHINE.h' and 'MACHINE-protos.h' and a
!      source file 'MACHINE.c' (*note Target Description Macros and
       Functions: Target Macros.), possibly a target Makefile fragment
!      't-MACHINE' (*note The Target Makefile Fragment: Target Fragment.),
!      and maybe some other files.  The names of these files may be
!      changed from the defaults given by explicit specifications in
!      'config.gcc'.
!    * If necessary, a file 'MACHINE-modes.def' in the 'MACHINE'
       directory, containing additional machine modes to represent
       condition codes.  *Note Condition Code::, for further details.
!    * An optional 'MACHINE.opt' file in the 'MACHINE' directory,
       containing a list of target-specific options.  You can also add
!      other option files using the 'extra_options' variable in
!      'config.gcc'.  *Note Options::.
!    * Entries in 'config.gcc' (*note The 'config.gcc' File: System
       Config.) for the systems with this target architecture.
!    * Documentation in 'gcc/doc/invoke.texi' for any command-line options
!      supported by this target (*note Run-time Target Specification:
!      Run-time Target.).  This means both entries in the summary table of
!      options and details of the individual options.
!    * Documentation in 'gcc/doc/extend.texi' for any target-specific
       attributes supported (*note Defining target-specific uses of
!      '__attribute__': Target Attributes.), including where the same
       attribute is already supported on some targets, which are
       enumerated in the manual.
!    * Documentation in 'gcc/doc/extend.texi' for any target-specific
       pragmas supported.
!    * Documentation in 'gcc/doc/extend.texi' of any target-specific
       built-in functions supported.
!    * Documentation in 'gcc/doc/extend.texi' of any target-specific
       format checking styles supported.
!    * Documentation in 'gcc/doc/md.texi' of any target-specific
       constraint letters (*note Constraints for Particular Machines:
       Machine Constraints.).
!    * A note in 'gcc/doc/contrib.texi' under the person or people who
       contributed the target support.
!    * Entries in 'gcc/doc/install.texi' for all target triplets supported
!      with this target architecture, giving details of any special notes
!      about installation for this target, or saying that there are no
!      special notes if there are none.
!    * Possibly other support outside the 'gcc' directory for runtime
!      libraries.  FIXME: reference docs for this.  The 'libstdc++'
       porting manual needs to be installed as info for this to work, or
       to be a chapter of this manual.
  
   If the back end is added to the official GCC source repository, the
  following are also necessary:
  
!    * An entry for the target architecture in 'readings.html' on the GCC
       web site, with any relevant links.
     * Details of the properties of the back end and target architecture
!      in 'backends.html' on the GCC web site.
     * A news item about the contribution of support for that target
!      architecture, in 'index.html' on the GCC web site.
     * Normally, one or more maintainers of that target listed in
!      'MAINTAINERS'.  Some existing architectures may be unmaintained,
       but it would be unusual to add support for a target that does not
       have a maintainer when support is added.
!    * Target triplets covering all 'config.gcc' stanzas for the target,
!      in the list in 'contrib/config-list.mk'.
  
  
  File: gccint.info,  Node: Testsuites,  Next: Options,  Prev: Source Tree,  Up: Top
*************** File: gccint.info,  Node: Testsuites,  N
*** 4216,4225 ****
  7 Testsuites
  ************
  
! GCC contains several testsuites to help maintain compiler quality.
! Most of the runtime libraries and language front ends in GCC have
! testsuites.  Currently only the C language testsuites are documented
! here; FIXME: document the others.
  
  * Menu:
  
--- 4123,4132 ----
  7 Testsuites
  ************
  
! GCC contains several testsuites to help maintain compiler quality.  Most
! of the runtime libraries and language front ends in GCC have testsuites.
! Currently only the C language testsuites are documented here; FIXME:
! document the others.
  
  * Menu:
  
*************** File: gccint.info,  Node: Test Idioms,
*** 4240,4281 ****
  7.1 Idioms Used in Testsuite Code
  =================================
  
! In general, C testcases have a trailing `-N.c', starting with `-1.c',
! in case other testcases with similar names are added later.  If the
! test is a test of some well-defined feature, it should have a name
! referring to that feature such as `FEATURE-1.c'.  If it does not test a
! well-defined feature but just happens to exercise a bug somewhere in
! the compiler, and a bug report has been filed for this bug in the GCC
! bug database, `prBUG-NUMBER-1.c' is the appropriate form of name.
! Otherwise (for miscellaneous bugs not filed in the GCC bug database),
! and previously more generally, test cases are named after the date on
! which they were added.  This allows people to tell at a glance whether
! a test failure is because of a recently found bug that has not yet been
! fixed, or whether it may be a regression, but does not give any other
! information about the bug or where discussion of it may be found.  Some
! other language testsuites follow similar conventions.
  
!  In the `gcc.dg' testsuite, it is often necessary to test that an error
  is indeed a hard error and not just a warning--for example, where it is
  a constraint violation in the C standard, which must become an error
! with `-pedantic-errors'.  The following idiom, where the first line
! shown is line LINE of the file and the line that generates the error,
! is used for this:
  
       /* { dg-bogus "warning" "warning in place of error" } */
       /* { dg-error "REGEXP" "MESSAGE" { target *-*-* } LINE } */
  
   It may be necessary to check that an expression is an integer constant
! expression and has a certain value.  To check that `E' has value `V',
! an idiom similar to the following is used:
  
       char x[((E) == (V) ? 1 : -1)];
  
!  In `gcc.dg' tests, `__typeof__' is sometimes used to make assertions
  about the types of expressions.  See, for example,
! `gcc.dg/c99-condexpr-1.c'.  The more subtle uses depend on the exact
  rules for the types of conditional expressions in the C standard; see,
! for example, `gcc.dg/c99-intconst-1.c'.
  
   It is useful to be able to test that optimizations are being made
  properly.  This cannot be done in all cases, but it can be done where
--- 4147,4188 ----
  7.1 Idioms Used in Testsuite Code
  =================================
  
! In general, C testcases have a trailing '-N.c', starting with '-1.c', in
! case other testcases with similar names are added later.  If the test is
! a test of some well-defined feature, it should have a name referring to
! that feature such as 'FEATURE-1.c'.  If it does not test a well-defined
! feature but just happens to exercise a bug somewhere in the compiler,
! and a bug report has been filed for this bug in the GCC bug database,
! 'prBUG-NUMBER-1.c' is the appropriate form of name.  Otherwise (for
! miscellaneous bugs not filed in the GCC bug database), and previously
! more generally, test cases are named after the date on which they were
! added.  This allows people to tell at a glance whether a test failure is
! because of a recently found bug that has not yet been fixed, or whether
! it may be a regression, but does not give any other information about
! the bug or where discussion of it may be found.  Some other language
! testsuites follow similar conventions.
  
!  In the 'gcc.dg' testsuite, it is often necessary to test that an error
  is indeed a hard error and not just a warning--for example, where it is
  a constraint violation in the C standard, which must become an error
! with '-pedantic-errors'.  The following idiom, where the first line
! shown is line LINE of the file and the line that generates the error, is
! used for this:
  
       /* { dg-bogus "warning" "warning in place of error" } */
       /* { dg-error "REGEXP" "MESSAGE" { target *-*-* } LINE } */
  
   It may be necessary to check that an expression is an integer constant
! expression and has a certain value.  To check that 'E' has value 'V', an
! idiom similar to the following is used:
  
       char x[((E) == (V) ? 1 : -1)];
  
!  In 'gcc.dg' tests, '__typeof__' is sometimes used to make assertions
  about the types of expressions.  See, for example,
! 'gcc.dg/c99-condexpr-1.c'.  The more subtle uses depend on the exact
  rules for the types of conditional expressions in the C standard; see,
! for example, 'gcc.dg/c99-intconst-1.c'.
  
   It is useful to be able to test that optimizations are being made
  properly.  This cannot be done in all cases, but it can be done where
*************** the optimization will lead to code being
*** 4283,4290 ****
  where flow analysis or alias analysis should show that certain code
  cannot be called) or to functions not being called because they have
  been expanded as built-in functions.  Such tests go in
! `gcc.c-torture/execute'.  Where code should be optimized away, a call
! to a nonexistent function such as `link_failure ()' may be inserted; a
  definition
  
       #ifndef __OPTIMIZE__
--- 4190,4197 ----
  where flow analysis or alias analysis should show that certain code
  cannot be called) or to functions not being called because they have
  been expanded as built-in functions.  Such tests go in
! 'gcc.c-torture/execute'.  Where code should be optimized away, a call to
! a nonexistent function such as 'link_failure ()' may be inserted; a
  definition
  
       #ifndef __OPTIMIZE__
*************** definition
*** 4296,4306 ****
       #endif
  
  will also be needed so that linking still succeeds when the test is run
! without optimization.  When all calls to a built-in function should
! have been optimized and no calls to the non-built-in version of the
! function should remain, that function may be defined as `static' to
! call `abort ()' (although redeclaring a function as static may not work
! on all targets).
  
   All testcases must be portable.  Target-specific testcases must have
  appropriate code to avoid causing failures on unsupported systems;
--- 4203,4213 ----
       #endif
  
  will also be needed so that linking still succeeds when the test is run
! without optimization.  When all calls to a built-in function should have
! been optimized and no calls to the non-built-in version of the function
! should remain, that function may be defined as 'static' to call 'abort
! ()' (although redeclaring a function as static may not work on all
! targets).
  
   All testcases must be portable.  Target-specific testcases must have
  appropriate code to avoid causing failures on unsupported systems;
*************** File: gccint.info,  Node: Test Directive
*** 4319,4327 ****
  * Directives::  Syntax and descriptions of test directives.
  * Selectors:: Selecting targets to which a test applies.
  * Effective-Target Keywords:: Keywords describing target attributes.
! * Add Options:: Features for `dg-add-options'
! * Require Support:: Variants of `dg-require-SUPPORT'
! * Final Actions:: Commands for use in `dg-final'
  
  
  File: gccint.info,  Node: Directives,  Next: Selectors,  Up: Test Directives
--- 4226,4234 ----
  * Directives::  Syntax and descriptions of test directives.
  * Selectors:: Selecting targets to which a test applies.
  * Effective-Target Keywords:: Keywords describing target attributes.
! * Add Options:: Features for 'dg-add-options'
! * Require Support:: Variants of 'dg-require-SUPPORT'
! * Final Actions:: Commands for use in 'dg-final'
  
  
  File: gccint.info,  Node: Directives,  Next: Selectors,  Up: Test Directives
*************** File: gccint.info,  Node: Directives,  N
*** 4330,4336 ****
  ------------------------------------------------
  
  Test directives appear within comments in a test source file and begin
! with `dg-'.  Some of these are defined within DejaGnu and others are
  local to the GCC testsuite.
  
   The order in which test directives appear in a test can be important:
--- 4237,4243 ----
  ------------------------------------------------
  
  Test directives appear within comments in a test source file and begin
! with 'dg-'.  Some of these are defined within DejaGnu and others are
  local to the GCC testsuite.
  
   The order in which test directives appear in a test can be important:
*************** directives local to GCC sometimes overri
*** 4338,4398 ****
  DejaGnu directives, which know nothing about the GCC directives, so the
  DejaGnu directives must precede GCC directives.
  
!  Several test directives include selectors (*note Selectors::) which
! are usually preceded by the keyword `target' or `xfail'.
  
  7.2.1.1 Specify how to build the test
  .....................................
  
! `{ dg-do DO-WHAT-KEYWORD [{ target/xfail SELECTOR }] }'
       DO-WHAT-KEYWORD specifies how the test is compiled and whether it
       is executed.  It is one of:
  
!     `preprocess'
!           Compile with `-E' to run only the preprocessor.
! 
!     `compile'
!           Compile with `-S' to produce an assembly code file.
! 
!     `assemble'
!           Compile with `-c' to produce a relocatable object file.
! 
!     `link'
            Compile, assemble, and link to produce an executable file.
! 
!     `run'
            Produce and run an executable file, which is expected to
            return an exit code of 0.
  
!      The default is `compile'.  That can be overridden for a set of
!      tests by redefining `dg-do-what-default' within the `.exp' file
!      for those tests.
  
!      If the directive includes the optional `{ target SELECTOR }' then
       the test is skipped unless the target system matches the SELECTOR.
  
!      If DO-WHAT-KEYWORD is `run' and the directive includes the
!      optional `{ xfail SELECTOR }' and the selector is met then the
!      test is expected to fail.  The `xfail' clause is ignored for other
!      values of DO-WHAT-KEYWORD; those tests can use directive
!      `dg-xfail-if'.
  
  7.2.1.2 Specify additional compiler options
  ...........................................
  
! `{ dg-options OPTIONS [{ target SELECTOR }] }'
       This DejaGnu directive provides a list of compiler options, to be
       used if the target system matches SELECTOR, that replace the
       default options used for this set of tests.
  
! `{ dg-add-options FEATURE ... }'
       Add any compiler options that are needed to access certain
       features.  This directive does nothing on targets that enable the
       features by default, or that don't provide them at all.  It must
!      come after all `dg-options' directives.  For supported values of
       FEATURE see *note Add Options::.
  
! `{ dg-additional-options OPTIONS [{ target SELECTOR }] }'
       This directive provides a list of compiler options, to be used if
       the target system matches SELECTOR, that are added to the default
       options used for this set of tests.
--- 4245,4300 ----
  DejaGnu directives, which know nothing about the GCC directives, so the
  DejaGnu directives must precede GCC directives.
  
!  Several test directives include selectors (*note Selectors::) which are
! usually preceded by the keyword 'target' or 'xfail'.
  
  7.2.1.1 Specify how to build the test
  .....................................
  
! '{ dg-do DO-WHAT-KEYWORD [{ target/xfail SELECTOR }] }'
       DO-WHAT-KEYWORD specifies how the test is compiled and whether it
       is executed.  It is one of:
  
!      'preprocess'
!           Compile with '-E' to run only the preprocessor.
!      'compile'
!           Compile with '-S' to produce an assembly code file.
!      'assemble'
!           Compile with '-c' to produce a relocatable object file.
!      'link'
            Compile, assemble, and link to produce an executable file.
!      'run'
            Produce and run an executable file, which is expected to
            return an exit code of 0.
  
!      The default is 'compile'.  That can be overridden for a set of
!      tests by redefining 'dg-do-what-default' within the '.exp' file for
!      those tests.
  
!      If the directive includes the optional '{ target SELECTOR }' then
       the test is skipped unless the target system matches the SELECTOR.
  
!      If DO-WHAT-KEYWORD is 'run' and the directive includes the optional
!      '{ xfail SELECTOR }' and the selector is met then the test is
!      expected to fail.  The 'xfail' clause is ignored for other values
!      of DO-WHAT-KEYWORD; those tests can use directive 'dg-xfail-if'.
  
  7.2.1.2 Specify additional compiler options
  ...........................................
  
! '{ dg-options OPTIONS [{ target SELECTOR }] }'
       This DejaGnu directive provides a list of compiler options, to be
       used if the target system matches SELECTOR, that replace the
       default options used for this set of tests.
  
! '{ dg-add-options FEATURE ... }'
       Add any compiler options that are needed to access certain
       features.  This directive does nothing on targets that enable the
       features by default, or that don't provide them at all.  It must
!      come after all 'dg-options' directives.  For supported values of
       FEATURE see *note Add Options::.
  
! '{ dg-additional-options OPTIONS [{ target SELECTOR }] }'
       This directive provides a list of compiler options, to be used if
       the target system matches SELECTOR, that are added to the default
       options used for this set of tests.
*************** are usually preceded by the keyword `tar
*** 4403,4409 ****
  The normal timeout limit, in seconds, is found by searching the
  following in order:
  
!    * the value defined by an earlier `dg-timeout' directive in the test
  
     * variable TOOL_TIMEOUT defined by the set of tests
  
--- 4305,4311 ----
  The normal timeout limit, in seconds, is found by searching the
  following in order:
  
!    * the value defined by an earlier 'dg-timeout' directive in the test
  
     * variable TOOL_TIMEOUT defined by the set of tests
  
*************** following in order:
*** 4411,4428 ****
  
     * 300
  
! `{ dg-timeout N [{target SELECTOR }] }'
!      Set the time limit for the compilation and for the execution of
!      the test to the specified number of seconds.
  
! `{ dg-timeout-factor X [{ target SELECTOR }] }'
!      Multiply the normal time limit for compilation and execution of
!      the test by the specified floating-point factor.
  
  7.2.1.4 Skip a test for some targets
  ....................................
  
! `{ dg-skip-if COMMENT { SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]] }'
       Arguments INCLUDE-OPTS and EXCLUDE-OPTS are lists in which each
       element is a string of zero or more GCC options.  Skip the test if
       all of the following conditions are met:
--- 4313,4330 ----
  
     * 300
  
! '{ dg-timeout N [{target SELECTOR }] }'
!      Set the time limit for the compilation and for the execution of the
!      test to the specified number of seconds.
  
! '{ dg-timeout-factor X [{ target SELECTOR }] }'
!      Multiply the normal time limit for compilation and execution of the
!      test by the specified floating-point factor.
  
  7.2.1.4 Skip a test for some targets
  ....................................
  
! '{ dg-skip-if COMMENT { SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]] }'
       Arguments INCLUDE-OPTS and EXCLUDE-OPTS are lists in which each
       element is a string of zero or more GCC options.  Skip the test if
       all of the following conditions are met:
*************** following in order:
*** 4430,4479 ****
  
          * for at least one of the option strings in INCLUDE-OPTS, every
            option from that string is in the set of options with which
!           the test would be compiled; use `"*"' for an INCLUDE-OPTS list
            that matches any options; that is the default if INCLUDE-OPTS
            is not specified
  
          * for each of the option strings in EXCLUDE-OPTS, at least one
            option from that string is not in the set of options with
!           which the test would be compiled; use `""' for an empty
            EXCLUDE-OPTS list; that is the default if EXCLUDE-OPTS is not
            specified
  
!      For example, to skip a test if option `-Os' is present:
  
            /* { dg-skip-if "" { *-*-* }  { "-Os" } { "" } } */
  
!      To skip a test if both options `-O2' and `-g' are present:
  
            /* { dg-skip-if "" { *-*-* }  { "-O2 -g" } { "" } } */
  
!      To skip a test if either `-O2' or `-O3' is present:
  
            /* { dg-skip-if "" { *-*-* }  { "-O2" "-O3" } { "" } } */
  
!      To skip a test unless option `-Os' is present:
  
            /* { dg-skip-if "" { *-*-* }  { "*" } { "-Os" } } */
  
!      To skip a test if either `-O2' or `-O3' is used with `-g' but not
!      if `-fpic' is also present:
  
            /* { dg-skip-if "" { *-*-* }  { "-O2 -g" "-O3 -g" } { "-fpic" } } */
  
! `{ dg-require-effective-target KEYWORD [{ SELECTOR }] }'
       Skip the test if the test target, including current multilib flags,
       is not covered by the effective-target keyword.  If the directive
!      includes the optional `{ SELECTOR }' then the effective-target
!      test is only performed if the target system matches the SELECTOR.
!      This directive must appear after any `dg-do' directive in the test
!      and before any `dg-additional-sources' directive.  *Note
       Effective-Target Keywords::.
  
! `{ dg-require-SUPPORT args }'
       Skip the test if the target does not provide the required support.
!      These directives must appear after any `dg-do' directive in the
!      test and before any `dg-additional-sources' directive.  They
       require at least one argument, which can be an empty string if the
       specific procedure does not examine the argument.  *Note Require
       Support::, for a complete list of these directives.
--- 4332,4381 ----
  
          * for at least one of the option strings in INCLUDE-OPTS, every
            option from that string is in the set of options with which
!           the test would be compiled; use '"*"' for an INCLUDE-OPTS list
            that matches any options; that is the default if INCLUDE-OPTS
            is not specified
  
          * for each of the option strings in EXCLUDE-OPTS, at least one
            option from that string is not in the set of options with
!           which the test would be compiled; use '""' for an empty
            EXCLUDE-OPTS list; that is the default if EXCLUDE-OPTS is not
            specified
  
!      For example, to skip a test if option '-Os' is present:
  
            /* { dg-skip-if "" { *-*-* }  { "-Os" } { "" } } */
  
!      To skip a test if both options '-O2' and '-g' are present:
  
            /* { dg-skip-if "" { *-*-* }  { "-O2 -g" } { "" } } */
  
!      To skip a test if either '-O2' or '-O3' is present:
  
            /* { dg-skip-if "" { *-*-* }  { "-O2" "-O3" } { "" } } */
  
!      To skip a test unless option '-Os' is present:
  
            /* { dg-skip-if "" { *-*-* }  { "*" } { "-Os" } } */
  
!      To skip a test if either '-O2' or '-O3' is used with '-g' but not
!      if '-fpic' is also present:
  
            /* { dg-skip-if "" { *-*-* }  { "-O2 -g" "-O3 -g" } { "-fpic" } } */
  
! '{ dg-require-effective-target KEYWORD [{ SELECTOR }] }'
       Skip the test if the test target, including current multilib flags,
       is not covered by the effective-target keyword.  If the directive
!      includes the optional '{ SELECTOR }' then the effective-target test
!      is only performed if the target system matches the SELECTOR.  This
!      directive must appear after any 'dg-do' directive in the test and
!      before any 'dg-additional-sources' directive.  *Note
       Effective-Target Keywords::.
  
! '{ dg-require-SUPPORT args }'
       Skip the test if the target does not provide the required support.
!      These directives must appear after any 'dg-do' directive in the
!      test and before any 'dg-additional-sources' directive.  They
       require at least one argument, which can be an empty string if the
       specific procedure does not examine the argument.  *Note Require
       Support::, for a complete list of these directives.
*************** following in order:
*** 4481,4571 ****
  7.2.1.5 Expect a test to fail for some targets
  ..............................................
  
! `{ dg-xfail-if COMMENT { SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]] }'
       Expect the test to fail if the conditions (which are the same as
!      for `dg-skip-if') are met.  This does not affect the execute step.
  
! `{ dg-xfail-run-if COMMENT { SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]] }'
       Expect the execute step of a test to fail if the conditions (which
!      are the same as for `dg-skip-if') are met.
  
  7.2.1.6 Expect the test executable to fail
  ..........................................
  
! `{ dg-shouldfail COMMENT [{ SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]]] }'
       Expect the test executable to return a nonzero exit status if the
!      conditions (which are the same as for `dg-skip-if') are met.
  
  7.2.1.7 Verify compiler messages
  ................................
  
! `{ dg-error REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
!      This DejaGnu directive appears on a source line that is expected
!      to get an error message, or else specifies the source line
!      associated with the message.  If there is no message for that line
!      or if the text of that message is not matched by REGEXP then the
!      check fails and COMMENT is included in the `FAIL' message.  The
!      check does not look for the string `error' unless it is part of
!      REGEXP.
  
! `{ dg-warning REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
!      This DejaGnu directive appears on a source line that is expected
!      to get a warning message, or else specifies the source line
!      associated with the message.  If there is no message for that line
!      or if the text of that message is not matched by REGEXP then the
!      check fails and COMMENT is included in the `FAIL' message.  The
!      check does not look for the string `warning' unless it is part of
!      REGEXP.
  
! `{ dg-message REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
       The line is expected to get a message other than an error or
       warning.  If there is no message for that line or if the text of
       that message is not matched by REGEXP then the check fails and
!      COMMENT is included in the `FAIL' message.
  
! `{ dg-bogus REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
!      This DejaGnu directive appears on a source line that should not
!      get a message matching REGEXP, or else specifies the source line
!      associated with the bogus message.  It is usually used with `xfail'
       to indicate that the message is a known problem for a particular
       set of targets.
  
! `{ dg-excess-errors COMMENT [{ target/xfail SELECTOR }] }'
       This DejaGnu directive indicates that the test is expected to fail
!      due to compiler messages that are not handled by `dg-error',
!      `dg-warning' or `dg-bogus'.  For this directive `xfail' has the
!      same effect as `target'.
  
! `{ dg-prune-output REGEXP }'
       Prune messages matching REGEXP from the test output.
  
  7.2.1.8 Verify output of the test executable
  ............................................
  
! `{ dg-output REGEXP [{ target/xfail SELECTOR }] }'
       This DejaGnu directive compares REGEXP to the combined output that
!      the test executable writes to `stdout' and `stderr'.
  
  7.2.1.9 Specify additional files for a test
  ...........................................
  
! `{ dg-additional-files "FILELIST" }'
       Specify additional files, other than source files, that must be
       copied to the system where the compiler runs.
  
! `{ dg-additional-sources "FILELIST" }'
       Specify additional source files to appear in the compile line
       following the main test file.
  
  7.2.1.10 Add checks at the end of a test
  ........................................
  
! `{ dg-final { LOCAL-DIRECTIVE } }'
       This DejaGnu directive is placed within a comment anywhere in the
       source file and is processed after the test has been compiled and
!      run.  Multiple `dg-final' commands are processed in the order in
!      which they appear in the source file.  *Note Final Actions::, for
!      a list of directives that can be used within `dg-final'.
  
  
  File: gccint.info,  Node: Selectors,  Next: Effective-Target Keywords,  Prev: Directives,  Up: Test Directives
--- 4383,4471 ----
  7.2.1.5 Expect a test to fail for some targets
  ..............................................
  
! '{ dg-xfail-if COMMENT { SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]] }'
       Expect the test to fail if the conditions (which are the same as
!      for 'dg-skip-if') are met.  This does not affect the execute step.
  
! '{ dg-xfail-run-if COMMENT { SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]] }'
       Expect the execute step of a test to fail if the conditions (which
!      are the same as for 'dg-skip-if') are met.
  
  7.2.1.6 Expect the test executable to fail
  ..........................................
  
! '{ dg-shouldfail COMMENT [{ SELECTOR } [{ INCLUDE-OPTS } [{ EXCLUDE-OPTS }]]] }'
       Expect the test executable to return a nonzero exit status if the
!      conditions (which are the same as for 'dg-skip-if') are met.
  
  7.2.1.7 Verify compiler messages
  ................................
  
! '{ dg-error REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
!      This DejaGnu directive appears on a source line that is expected to
!      get an error message, or else specifies the source line associated
!      with the message.  If there is no message for that line or if the
!      text of that message is not matched by REGEXP then the check fails
!      and COMMENT is included in the 'FAIL' message.  The check does not
!      look for the string 'error' unless it is part of REGEXP.
  
! '{ dg-warning REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
!      This DejaGnu directive appears on a source line that is expected to
!      get a warning message, or else specifies the source line associated
!      with the message.  If there is no message for that line or if the
!      text of that message is not matched by REGEXP then the check fails
!      and COMMENT is included in the 'FAIL' message.  The check does not
!      look for the string 'warning' unless it is part of REGEXP.
  
! '{ dg-message REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
       The line is expected to get a message other than an error or
       warning.  If there is no message for that line or if the text of
       that message is not matched by REGEXP then the check fails and
!      COMMENT is included in the 'FAIL' message.
  
! '{ dg-bogus REGEXP [COMMENT [{ target/xfail SELECTOR } [LINE] }]] }'
!      This DejaGnu directive appears on a source line that should not get
!      a message matching REGEXP, or else specifies the source line
!      associated with the bogus message.  It is usually used with 'xfail'
       to indicate that the message is a known problem for a particular
       set of targets.
  
! '{ dg-excess-errors COMMENT [{ target/xfail SELECTOR }] }'
       This DejaGnu directive indicates that the test is expected to fail
!      due to compiler messages that are not handled by 'dg-error',
!      'dg-warning' or 'dg-bogus'.  For this directive 'xfail' has the
!      same effect as 'target'.
  
! '{ dg-prune-output REGEXP }'
       Prune messages matching REGEXP from the test output.
  
  7.2.1.8 Verify output of the test executable
  ............................................
  
! '{ dg-output REGEXP [{ target/xfail SELECTOR }] }'
       This DejaGnu directive compares REGEXP to the combined output that
!      the test executable writes to 'stdout' and 'stderr'.
  
  7.2.1.9 Specify additional files for a test
  ...........................................
  
! '{ dg-additional-files "FILELIST" }'
       Specify additional files, other than source files, that must be
       copied to the system where the compiler runs.
  
! '{ dg-additional-sources "FILELIST" }'
       Specify additional source files to appear in the compile line
       following the main test file.
  
  7.2.1.10 Add checks at the end of a test
  ........................................
  
! '{ dg-final { LOCAL-DIRECTIVE } }'
       This DejaGnu directive is placed within a comment anywhere in the
       source file and is processed after the test has been compiled and
!      run.  Multiple 'dg-final' commands are processed in the order in
!      which they appear in the source file.  *Note Final Actions::, for a
!      list of directives that can be used within 'dg-final'.
  
  
  File: gccint.info,  Node: Selectors,  Next: Effective-Target Keywords,  Prev: Directives,  Up: Test Directives
*************** File: gccint.info,  Node: Selectors,  Ne
*** 4573,4599 ****
  7.2.2 Selecting targets to which a test applies
  -----------------------------------------------
  
! Several test directives include SELECTORs to limit the targets for
! which a test is run or to declare that a test is expected to fail on
  particular targets.
  
   A selector is:
     * one or more target triplets, possibly including wildcard
!      characters; use `*-*-*' to match any target
! 
     * a single effective-target keyword (*note Effective-Target
       Keywords::)
- 
     * a logical expression
  
   Depending on the context, the selector specifies whether a test is
  skipped and reported as unsupported or is expected to fail.  A context
! that allows either `target' or `xfail' also allows `{ target SELECTOR1
  xfail SELECTOR2 }' to skip the test for targets that don't match
  SELECTOR1 and the test to fail for targets that match SELECTOR2.
  
   A selector expression appears within curly braces and uses a single
! logical operator: one of `!', `&&', or `||'.  An operand is another
  selector expression, an effective-target keyword, a single target
  triplet, or a list of target triplets within quotes or curly braces.
  For example:
--- 4473,4497 ----
  7.2.2 Selecting targets to which a test applies
  -----------------------------------------------
  
! Several test directives include SELECTORs to limit the targets for which
! a test is run or to declare that a test is expected to fail on
  particular targets.
  
   A selector is:
     * one or more target triplets, possibly including wildcard
!      characters; use '*-*-*' to match any target
     * a single effective-target keyword (*note Effective-Target
       Keywords::)
     * a logical expression
  
   Depending on the context, the selector specifies whether a test is
  skipped and reported as unsupported or is expected to fail.  A context
! that allows either 'target' or 'xfail' also allows '{ target SELECTOR1
  xfail SELECTOR2 }' to skip the test for targets that don't match
  SELECTOR1 and the test to fail for targets that match SELECTOR2.
  
   A selector expression appears within curly braces and uses a single
! logical operator: one of '!', '&&', or '||'.  An operand is another
  selector expression, an effective-target keyword, a single target
  triplet, or a list of target triplets within quotes or curly braces.
  For example:
*************** particular functionality.  They are used
*** 4613,5632 ****
  for particular targets, or to specify that particular sets of targets
  are expected to fail some tests.
  
!  Effective-target keywords are defined in `lib/target-supports.exp' in
  the GCC testsuite, with the exception of those that are documented as
  being local to a particular test directory.
  
!  The `effective target' takes into account all of the compiler options
  with which the test will be compiled, including the multilib options.
! By convention, keywords ending in `_nocache' can also include options
! specified for the particular test in an earlier `dg-options' or
! `dg-add-options' directive.
  
  7.2.3.1 Data type sizes
  .......................
  
! `ilp32'
!      Target has 32-bit `int', `long', and pointers.
  
! `lp64'
!      Target has 32-bit `int', 64-bit `long' and pointers.
  
! `llp64'
!      Target has 32-bit `int' and `long', 64-bit `long long' and
       pointers.
  
! `double64'
!      Target has 64-bit `double'.
  
! `double64plus'
!      Target has `double' that is 64 bits or longer.
  
! `longdouble128'
!      Target has 128-bit `long double'.
  
! `int32plus'
!      Target has `int' that is at 32 bits or longer.
  
! `int16'
!      Target has `int' that is 16 bits or shorter.
  
! `long_neq_int'
!      Target has `int' and `long' with different sizes.
  
! `large_double'
!      Target supports `double' that is longer than `float'.
  
! `large_long_double'
!      Target supports `long double' that is longer than `double'.
  
! `ptr32plus'
       Target has pointers that are 32 bits or longer.
  
! `size32plus'
       Target supports array and structure sizes that are 32 bits or
       longer.
  
! `4byte_wchar_t'
!      Target has `wchar_t' that is at least 4 bytes.
  
  7.2.3.2 Fortran-specific attributes
  ...................................
  
! `fortran_integer_16'
!      Target supports Fortran `integer' that is 16 bytes or longer.
  
! `fortran_large_int'
!      Target supports Fortran `integer' kinds larger than `integer(8)'.
  
! `fortran_large_real'
!      Target supports Fortran `real' kinds larger than `real(8)'.
  
  7.2.3.3 Vector-specific attributes
  ..................................
  
! `vect_condition'
       Target supports vector conditional operations.
  
! `vect_double'
!      Target supports hardware vectors of `double'.
  
! `vect_float'
!      Target supports hardware vectors of `float'.
  
! `vect_int'
!      Target supports hardware vectors of `int'.
  
! `vect_long'
!      Target supports hardware vectors of `long'.
  
! `vect_long_long'
!      Target supports hardware vectors of `long long'.
  
! `vect_aligned_arrays'
       Target aligns arrays to vector alignment boundary.
  
! `vect_hw_misalign'
       Target supports a vector misalign access.
  
! `vect_no_align'
       Target does not support a vector alignment mechanism.
  
! `vect_no_int_min_max'
!      Target does not support a vector min and max instruction on `int'.
  
! `vect_no_int_add'
!      Target does not support a vector add instruction on `int'.
  
! `vect_no_bitwise'
       Target does not support vector bitwise instructions.
  
! `vect_char_mult'
!      Target supports `vector char' multiplication.
  
! `vect_short_mult'
!      Target supports `vector short' multiplication.
  
! `vect_int_mult'
!      Target supports `vector int' multiplication.
  
! `vect_extract_even_odd'
       Target supports vector even/odd element extraction.
  
! `vect_extract_even_odd_wide'
       Target supports vector even/odd element extraction of vectors with
!      elements `SImode' or larger.
  
! `vect_interleave'
       Target supports vector interleaving.
  
! `vect_strided'
       Target supports vector interleaving and extract even/odd.
  
! `vect_strided_wide'
       Target supports vector interleaving and extract even/odd for wide
       element types.
  
! `vect_perm'
       Target supports vector permutation.
  
! `vect_shift'
       Target supports a hardware vector shift operation.
  
! `vect_widen_sum_hi_to_si'
!      Target supports a vector widening summation of `short' operands
!      into `int' results, or can promote (unpack) from `short' to `int'.
  
! `vect_widen_sum_qi_to_hi'
!      Target supports a vector widening summation of `char' operands
!      into `short' results, or can promote (unpack) from `char' to
!      `short'.
  
! `vect_widen_sum_qi_to_si'
!      Target supports a vector widening summation of `char' operands
!      into `int' results.
  
! `vect_widen_mult_qi_to_hi'
!      Target supports a vector widening multiplication of `char' operands
!      into `short' results, or can promote (unpack) from `char' to
!      `short' and perform non-widening multiplication of `short'.
  
! `vect_widen_mult_hi_to_si'
!      Target supports a vector widening multiplication of `short'
!      operands into `int' results, or can promote (unpack) from `short'
!      to `int' and perform non-widening multiplication of `int'.
  
! `vect_widen_mult_si_to_di_pattern'
!      Target supports a vector widening multiplication of `int' operands
!      into `long' results.
  
! `vect_sdot_qi'
!      Target supports a vector dot-product of `signed char'.
  
! `vect_udot_qi'
!      Target supports a vector dot-product of `unsigned char'.
  
! `vect_sdot_hi'
!      Target supports a vector dot-product of `signed short'.
  
! `vect_udot_hi'
!      Target supports a vector dot-product of `unsigned short'.
  
! `vect_pack_trunc'
!      Target supports a vector demotion (packing) of `short' to `char'
!      and from `int' to `short' using modulo arithmetic.
  
! `vect_unpack'
!      Target supports a vector promotion (unpacking) of `char' to `short'
!      and from `char' to `int'.
  
! `vect_intfloat_cvt'
!      Target supports conversion from `signed int' to `float'.
  
! `vect_uintfloat_cvt'
!      Target supports conversion from `unsigned int' to `float'.
  
! `vect_floatint_cvt'
!      Target supports conversion from `float' to `signed int'.
  
! `vect_floatuint_cvt'
!      Target supports conversion from `float' to `unsigned int'.
  
! `vect_max_reduc'
       Target supports max reduction for vectors.
  
  7.2.3.4 Thread Local Storage attributes
  .......................................
  
! `tls'
       Target supports thread-local storage.
  
! `tls_native'
       Target supports native (rather than emulated) thread-local storage.
  
! `tls_runtime'
       Test system supports executing TLS executables.
  
  7.2.3.5 Decimal floating point attributes
  .........................................
  
! `dfp'
       Targets supports compiling decimal floating point extension to C.
  
! `dfp_nocache'
       Including the options used to compile this particular test, the
       target supports compiling decimal floating point extension to C.
  
! `dfprt'
       Test system can execute decimal floating point tests.
  
! `dfprt_nocache'
       Including the options used to compile this particular test, the
       test system can execute decimal floating point tests.
  
! `hard_dfp'
       Target generates decimal floating point instructions with current
       options.
  
  7.2.3.6 ARM-specific attributes
  ...............................
  
! `arm32'
       ARM target generates 32-bit code.
  
! `arm_eabi'
       ARM target adheres to the ABI for the ARM Architecture.
  
! `arm_fp_ok'
!      ARM target defines `__ARM_FP' using `-mfloat-abi=softfp' or
       equivalent options.  Some multilibs may be incompatible with these
       options.
  
! `arm_hf_eabi'
       ARM target adheres to the VFP and Advanced SIMD Register Arguments
       variant of the ABI for the ARM Architecture (as selected with
!      `-mfloat-abi=hard').
  
! `arm_hard_vfp_ok'
!      ARM target supports `-mfpu=vfp -mfloat-abi=hard'.  Some multilibs
       may be incompatible with these options.
  
! `arm_iwmmxt_ok'
!      ARM target supports `-mcpu=iwmmxt'.  Some multilibs may be
       incompatible with this option.
  
! `arm_neon'
       ARM target supports generating NEON instructions.
  
! `arm_tune_string_ops_prefer_neon'
       Test CPU tune supports inlining string operations with NEON
       instructions.
  
! `arm_neon_hw'
       Test system supports executing NEON instructions.
  
! `arm_neonv2_hw'
       Test system supports executing NEON v2 instructions.
  
! `arm_neon_ok'
!      ARM Target supports `-mfpu=neon -mfloat-abi=softfp' or compatible
       options.  Some multilibs may be incompatible with these options.
  
! `arm_neonv2_ok'
!      ARM Target supports `-mfpu=neon-vfpv4 -mfloat-abi=softfp' or
       compatible options.  Some multilibs may be incompatible with these
       options.
  
! `arm_neon_fp16_ok'
!      ARM Target supports `-mfpu=neon-fp16 -mfloat-abi=softfp' or
!      compatible options, including `-mfp16-format=ieee' if necessary to
!      obtain the `__fp16' type.  Some multilibs may be incompatible with
       these options.
  
! `arm_neon_fp16_hw'
       Test system supports executing Neon half-precision float
       instructions.  (Implies previous.)
  
! `arm_thumb1_ok'
!      ARM target generates Thumb-1 code for `-mthumb'.
  
! `arm_thumb2_ok'
!      ARM target generates Thumb-2 code for `-mthumb'.
  
! `arm_vfp_ok'
!      ARM target supports `-mfpu=vfp -mfloat-abi=softfp'.  Some
!      multilibs may be incompatible with these options.
  
! `arm_vfp3_ok'
!      ARM target supports `-mfpu=vfp3 -mfloat-abi=softfp'.  Some
       multilibs may be incompatible with these options.
  
! `arm_v8_vfp_ok'
!      ARM target supports `-mfpu=fp-armv8 -mfloat-abi=softfp'.  Some
       multilibs may be incompatible with these options.
  
! `arm_v8_neon_ok'
!      ARM target supports `-mfpu=neon-fp-armv8 -mfloat-abi=softfp'.
!      Some multilibs may be incompatible with these options.
  
! `arm_v8_1a_neon_ok'
       ARM target supports options to generate ARMv8.1 Adv.SIMD
       instructions.  Some multilibs may be incompatible with these
       options.
  
! `arm_v8_1a_neon_hw'
       ARM target supports executing ARMv8.1 Adv.SIMD instructions.  Some
       multilibs may be incompatible with the options needed.  Implies
       arm_v8_1a_neon_ok.
  
! `arm_prefer_ldrd_strd'
!      ARM target prefers `LDRD' and `STRD' instructions over `LDM' and
!      `STM' instructions.
! 
  
  7.2.3.7 AArch64-specific attributes
  ...................................
  
! `aarch64_asm_<ext>_ok'
!      AArch64 assembler supports the architecture extension `ext' via the
!      `.arch_extension' pseudo-op.
! 
! `aarch64_tiny'
       AArch64 target which generates instruction sequences for tiny
       memory model.
! 
! `aarch64_small'
       AArch64 target which generates instruction sequences for small
       memory model.
! 
! `aarch64_large'
       AArch64 target which generates instruction sequences for large
       memory model.
! 
! `aarch64_little_endian'
       AArch64 target which generates instruction sequences for little
       endian.
! 
! `aarch64_big_endian'
       AArch64 target which generates instruction sequences for big
       endian.
! 
! `aarch64_small_fpic'
       Binutils installed on test system supports relocation types
       required by -fpic for AArch64 small memory model.
  
- 
  7.2.3.8 MIPS-specific attributes
  ................................
  
! `mips64'
       MIPS target supports 64-bit instructions.
  
! `nomips16'
       MIPS target does not produce MIPS16 code.
  
! `mips16_attribute'
       MIPS target can generate MIPS16 code.
  
! `mips_loongson'
       MIPS target is a Loongson-2E or -2F target using an ABI that
       supports the Loongson vector modes.
  
! `mips_newabi_large_long_double'
!      MIPS target supports `long double' larger than `double' when using
       the new ABI.
  
! `mpaired_single'
!      MIPS target supports `-mpaired-single'.
  
  7.2.3.9 PowerPC-specific attributes
  ...................................
  
! `dfp_hw'
       PowerPC target supports executing hardware DFP instructions.
  
! `p8vector_hw'
       PowerPC target supports executing VSX instructions (ISA 2.07).
  
! `powerpc64'
       Test system supports executing 64-bit instructions.
  
! `powerpc_altivec'
       PowerPC target supports AltiVec.
  
! `powerpc_altivec_ok'
!      PowerPC target supports `-maltivec'.
  
! `powerpc_eabi_ok'
!      PowerPC target supports `-meabi'.
  
! `powerpc_elfv2'
!      PowerPC target supports `-mabi=elfv2'.
  
! `powerpc_fprs'
       PowerPC target supports floating-point registers.
  
! `powerpc_hard_double'
       PowerPC target supports hardware double-precision floating-point.
  
! `powerpc_htm_ok'
!      PowerPC target supports `-mhtm'
  
! `powerpc_p8vector_ok'
!      PowerPC target supports `-mpower8-vector'
  
! `powerpc_ppu_ok'
!      PowerPC target supports `-mcpu=cell'.
  
! `powerpc_spe'
       PowerPC target supports PowerPC SPE.
  
! `powerpc_spe_nocache'
       Including the options used to compile this particular test, the
       PowerPC target supports PowerPC SPE.
  
! `powerpc_spu'
       PowerPC target supports PowerPC SPU.
  
! `powerpc_vsx_ok'
!      PowerPC target supports `-mvsx'.
  
! `powerpc_405_nocache'
       Including the options used to compile this particular test, the
       PowerPC target supports PowerPC 405.
  
! `ppc_recip_hw'
       PowerPC target supports executing reciprocal estimate instructions.
  
! `spu_auto_overlay'
       SPU target has toolchain that supports automatic overlay
       generation.
  
! `vmx_hw'
       PowerPC target supports executing AltiVec instructions.
  
! `vsx_hw'
       PowerPC target supports executing VSX instructions (ISA 2.06).
  
  7.2.3.10 Other hardware attributes
  ..................................
  
! `avx'
!      Target supports compiling `avx' instructions.
  
! `avx_runtime'
!      Target supports the execution of `avx' instructions.
  
! `cell_hw'
       Test system can execute AltiVec and Cell PPU instructions.
  
! `coldfire_fpu'
       Target uses a ColdFire FPU.
  
! `hard_float'
       Target supports FPU instructions.
  
! `non_strict_align'
       Target does not require strict alignment.
  
! `sqrt_insn'
       Target has a square root instruction that the compiler can
       generate.
  
! `sse'
!      Target supports compiling `sse' instructions.
  
! `sse_runtime'
!      Target supports the execution of `sse' instructions.
  
! `sse2'
!      Target supports compiling `sse2' instructions.
  
! `sse2_runtime'
!      Target supports the execution of `sse2' instructions.
  
! `sync_char_short'
!      Target supports atomic operations on `char' and `short'.
  
! `sync_int_long'
!      Target supports atomic operations on `int' and `long'.
  
! `ultrasparc_hw'
       Test environment appears to run executables on a simulator that
!      accepts only `EM_SPARC' executables and chokes on `EM_SPARC32PLUS'
!      or `EM_SPARCV9' executables.
  
! `vect_cmdline_needed'
       Target requires a command line argument to enable a SIMD
       instruction set.
  
! `pie_copyreloc'
       The x86-64 target linker supports PIE with copy reloc.
  
  7.2.3.11 Environment attributes
  ...............................
  
! `c'
       The language for the compiler under test is C.
  
! `c++'
       The language for the compiler under test is C++.
  
! `c99_runtime'
       Target provides a full C99 runtime.
  
! `correct_iso_cpp_string_wchar_protos'
!      Target `string.h' and `wchar.h' headers provide C++ required
!      overloads for `strchr' etc. functions.
  
! `dummy_wcsftime'
!      Target uses a dummy `wcsftime' function that always returns zero.
  
! `fd_truncate'
       Target can truncate a file from a file descriptor, as used by
!      `libgfortran/io/unix.c:fd_truncate'; i.e. `ftruncate' or `chsize'.
  
! `freestanding'
!      Target is `freestanding' as defined in section 4 of the C99
       standard.  Effectively, it is a target which supports no extra
       headers or libraries other than what is considered essential.
  
! `init_priority'
       Target supports constructors with initialization priority
       arguments.
  
! `inttypes_types'
!      Target has the basic signed and unsigned types in `inttypes.h'.
       This is for tests that GCC's notions of these types agree with
!      those in the header, as some systems have only `inttypes.h'.
  
! `lax_strtofp'
       Target might have errors of a few ULP in string to floating-point
       conversion functions and overflow is not always detected correctly
       by those functions.
  
! `mempcpy'
!      Target provides `mempcpy' function.
  
! `mmap'
!      Target supports `mmap'.
  
! `newlib'
       Target supports Newlib.
  
! `pow10'
!      Target provides `pow10' function.
  
! `pthread'
!      Target can compile using `pthread.h' with no errors or warnings.
  
! `pthread_h'
!      Target has `pthread.h'.
  
! `run_expensive_tests'
       Expensive testcases (usually those that consume excessive amounts
       of CPU time) should be run on this target.  This can be enabled by
!      setting the `GCC_TEST_RUN_EXPENSIVE' environment variable to a
       non-empty string.
  
! `simulator'
!      Test system runs executables on a simulator (i.e. slowly) rather
!      than hardware (i.e. fast).
  
! `stabs'
       Target supports the stabs debugging format.
  
! `stdint_types'
!      Target has the basic signed and unsigned C types in `stdint.h'.
!      This will be obsolete when GCC ensures a working `stdint.h' for
!      all targets.
  
! `stpcpy'
!      Target provides `stpcpy' function.
  
! `trampolines'
       Target supports trampolines.
  
! `uclibc'
       Target supports uClibc.
  
! `unwrapped'
       Target does not use a status wrapper.
  
! `vxworks_kernel'
       Target is a VxWorks kernel.
  
! `vxworks_rtp'
       Target is a VxWorks RTP.
  
! `wchar'
       Target supports wide characters.
  
  7.2.3.12 Other attributes
  .........................
  
! `automatic_stack_alignment'
       Target supports automatic stack alignment.
  
! `cxa_atexit'
!      Target uses `__cxa_atexit'.
  
! `default_packed'
       Target has packed layout of structure members by default.
  
! `fgraphite'
       Target supports Graphite optimizations.
  
! `fixed_point'
       Target supports fixed-point extension to C.
  
! `fopenacc'
!      Target supports OpenACC via `-fopenacc'.
  
! `fopenmp'
!      Target supports OpenMP via `-fopenmp'.
  
! `fpic'
!      Target supports `-fpic' and `-fPIC'.
  
! `freorder'
!      Target supports `-freorder-blocks-and-partition'.
  
! `fstack_protector'
!      Target supports `-fstack-protector'.
  
! `gas'
!      Target uses GNU `as'.
  
! `gc_sections'
!      Target supports `--gc-sections'.
  
! `gld'
!      Target uses GNU `ld'.
  
! `keeps_null_pointer_checks'
       Target keeps null pointer checks, either due to the use of
!      `-fno-delete-null-pointer-checks' or hardwired into the target.
  
! `lto'
       Compiler has been configured to support link-time optimization
       (LTO).
  
! `naked_functions'
!      Target supports the `naked' function attribute.
  
! `named_sections'
       Target supports named sections.
  
! `natural_alignment_32'
       Target uses natural alignment (aligned to type size) for types of
       32 bits or less.
  
! `target_natural_alignment_64'
       Target uses natural alignment (aligned to type size) for types of
       64 bits or less.
  
! `nonpic'
       Target does not generate PIC by default.
  
! `pie_enabled'
       Target generates PIE by default.
  
! `pcc_bitfield_type_matters'
!      Target defines `PCC_BITFIELD_TYPE_MATTERS'.
  
! `pe_aligned_commons'
!      Target supports `-mpe-aligned-commons'.
  
! `pie'
!      Target supports `-pie', `-fpie' and `-fPIE'.
  
! `rdynamic'
!      Target supports `-rdynamic'.
  
! `section_anchors'
       Target supports section anchors.
  
! `short_enums'
       Target defaults to short enums.
  
! `static'
!      Target supports `-static'.
  
! `static_libgfortran'
!      Target supports statically linking `libgfortran'.
  
! `string_merging'
       Target supports merging string constants at link time.
  
! `ucn'
       Target supports compiling and assembling UCN.
  
! `ucn_nocache'
       Including the options used to compile this particular test, the
       target supports compiling and assembling UCN.
  
! `unaligned_stack'
!      Target does not guarantee that its `STACK_BOUNDARY' is greater than
       or equal to the required vector alignment.
  
! `vector_alignment_reachable'
       Vector alignment is reachable for types of 32 bits or less.
  
! `vector_alignment_reachable_for_64bit'
       Vector alignment is reachable for types of 64 bits or less.
  
! `wchar_t_char16_t_compatible'
!      Target supports `wchar_t' that is compatible with `char16_t'.
  
! `wchar_t_char32_t_compatible'
!      Target supports `wchar_t' that is compatible with `char32_t'.
  
! `comdat_group'
       Target uses comdat groups.
  
! 7.2.3.13 Local to tests in `gcc.target/i386'
  ............................................
  
! `3dnow'
!      Target supports compiling `3dnow' instructions.
  
! `aes'
!      Target supports compiling `aes' instructions.
  
! `fma4'
!      Target supports compiling `fma4' instructions.
  
! `ms_hook_prologue'
!      Target supports attribute `ms_hook_prologue'.
  
! `pclmul'
!      Target supports compiling `pclmul' instructions.
  
! `sse3'
!      Target supports compiling `sse3' instructions.
  
! `sse4'
!      Target supports compiling `sse4' instructions.
  
! `sse4a'
!      Target supports compiling `sse4a' instructions.
  
! `ssse3'
!      Target supports compiling `ssse3' instructions.
  
! `vaes'
!      Target supports compiling `vaes' instructions.
  
! `vpclmul'
!      Target supports compiling `vpclmul' instructions.
  
! `xop'
!      Target supports compiling `xop' instructions.
  
! 7.2.3.14 Local to tests in `gcc.target/spu/ea'
  ..............................................
  
! `ealib'
!      Target `__ea' library functions are available.
  
! 7.2.3.15 Local to tests in `gcc.test-framework'
  ...............................................
  
! `no'
       Always returns 0.
  
! `yes'
       Always returns 1.
  
  
  File: gccint.info,  Node: Add Options,  Next: Require Support,  Prev: Effective-Target Keywords,  Up: Test Directives
  
! 7.2.4 Features for `dg-add-options'
  -----------------------------------
  
! The supported values of FEATURE for directive `dg-add-options' are:
  
! `arm_fp'
!      `__ARM_FP' definition.  Only ARM targets support this feature, and
       only then in certain modes; see the *note arm_fp_ok effective
       target keyword: arm_fp_ok.
  
! `arm_neon'
       NEON support.  Only ARM targets support this feature, and only then
       in certain modes; see the *note arm_neon_ok effective target
       keyword: arm_neon_ok.
  
! `arm_neon_fp16'
       NEON and half-precision floating point support.  Only ARM targets
!      support this feature, and only then in certain modes; see the
!      *note arm_neon_fp16_ok effective target keyword: arm_neon_fp16_ok.
  
! `arm_vfp3'
       arm vfp3 floating point support; see the *note arm_vfp3_ok
       effective target keyword: arm_vfp3_ok.
  
! `bind_pic_locally'
       Add the target-specific flags needed to enable functions to bind
       locally when using pic/PIC passes in the testsuite.
  
! `c99_runtime'
       Add the target-specific flags needed to access the C99 runtime.
  
! `ieee'
!      Add the target-specific flags needed to enable full IEEE
!      compliance mode.
  
! `mips16_attribute'
!      `mips16' function attributes.  Only MIPS targets support this
       feature, and only then in certain modes.
  
! `tls'
       Add the target-specific flags needed to use thread-local storage.
  
  
  File: gccint.info,  Node: Require Support,  Next: Final Actions,  Prev: Add Options,  Up: Test Directives
  
! 7.2.5 Variants of `dg-require-SUPPORT'
  --------------------------------------
  
! A few of the `dg-require' directives take arguments.
  
! `dg-require-iconv CODESET'
!      Skip the test if the target does not support iconv.  CODESET is
!      the codeset to convert to.
  
! `dg-require-profiling PROFOPT'
       Skip the test if the target does not support profiling with option
       PROFOPT.
  
! `dg-require-visibility VIS'
!      Skip the test if the target does not support the `visibility'
!      attribute.  If VIS is `""', support for `visibility("hidden")' is
!      checked, for `visibility("VIS")' otherwise.
  
!  The original `dg-require' directives were defined before there was
  support for effective-target keywords.  The directives that do not take
  arguments could be replaced with effective-target keywords.
  
! `dg-require-alias ""'
!      Skip the test if the target does not support the `alias' attribute.
  
! `dg-require-ascii-locale ""'
       Skip the test if the host does not support an ASCII locale.
  
! `dg-require-compat-dfp ""'
!      Skip this test unless both compilers in a `compat' testsuite
       support decimal floating point.
  
! `dg-require-cxa-atexit ""'
!      Skip the test if the target does not support `__cxa_atexit'.  This
!      is equivalent to `dg-require-effective-target cxa_atexit'.
  
! `dg-require-dll ""'
       Skip the test if the target does not support DLL attributes.
  
! `dg-require-fork ""'
!      Skip the test if the target does not support `fork'.
  
! `dg-require-gc-sections ""'
       Skip the test if the target's linker does not support the
!      `--gc-sections' flags.  This is equivalent to
!      `dg-require-effective-target gc-sections'.
  
! `dg-require-host-local ""'
       Skip the test if the host is remote, rather than the same as the
       build system.  Some tests are incompatible with DejaGnu's handling
!      of remote hosts, which involves copying the source file to the
!      host and compiling it with a relative path and "`-o a.out'".
  
! `dg-require-mkfifo ""'
!      Skip the test if the target does not support `mkfifo'.
  
! `dg-require-named-sections ""'
       Skip the test is the target does not support named sections.  This
!      is equivalent to `dg-require-effective-target named_sections'.
  
! `dg-require-weak ""'
       Skip the test if the target does not support weak symbols.
  
! `dg-require-weak-override ""'
       Skip the test if the target does not support overriding weak
       symbols.
  
  
  File: gccint.info,  Node: Final Actions,  Prev: Require Support,  Up: Test Directives
  
! 7.2.6 Commands for use in `dg-final'
  ------------------------------------
  
  The GCC testsuite defines the following directives to be used within
! `dg-final'.
  
  7.2.6.1 Scan a particular file
  ..............................
  
! `scan-file FILENAME REGEXP [{ target/xfail SELECTOR }]'
       Passes if REGEXP matches text in FILENAME.
! 
! `scan-file-not FILENAME REGEXP [{ target/xfail SELECTOR }]'
       Passes if REGEXP does not match text in FILENAME.
! 
! `scan-module MODULE REGEXP [{ target/xfail SELECTOR }]'
       Passes if REGEXP matches in Fortran module MODULE.
  
  7.2.6.2 Scan the assembly output
  ................................
  
! `scan-assembler REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX matches text in the test's assembler output.
  
! `scan-assembler-not REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match text in the test's assembler output.
  
! `scan-assembler-times REGEX NUM [{ target/xfail SELECTOR }]'
       Passes if REGEX is matched exactly NUM times in the test's
       assembler output.
  
! `scan-assembler-dem REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX matches text in the test's demangled assembler
       output.
  
! `scan-assembler-dem-not REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match text in the test's demangled
       assembler output.
  
! `scan-hidden SYMBOL [{ target/xfail SELECTOR }]'
       Passes if SYMBOL is defined as a hidden symbol in the test's
       assembly output.
  
! `scan-not-hidden SYMBOL [{ target/xfail SELECTOR }]'
       Passes if SYMBOL is not defined as a hidden symbol in the test's
       assembly output.
  
  7.2.6.3 Scan optimization dump files
  ....................................
  
! These commands are available for KIND of `tree', `rtl', and `ipa'.
  
! `scan-KIND-dump REGEX SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX matches text in the dump file with suffix SUFFIX.
  
! `scan-KIND-dump-not REGEX SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match text in the dump file with suffix
       SUFFIX.
  
! `scan-KIND-dump-times REGEX NUM SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX is found exactly NUM times in the dump file with
       suffix SUFFIX.
  
! `scan-KIND-dump-dem REGEX SUFFIX [{ target/xfail SELECTOR }]'
!      Passes if REGEX matches demangled text in the dump file with
!      suffix SUFFIX.
  
! `scan-KIND-dump-dem-not REGEX SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match demangled text in the dump file with
       suffix SUFFIX.
  
  7.2.6.4 Verify that an output files exists or not
  .................................................
  
! `output-exists [{ target/xfail SELECTOR }]'
       Passes if compiler output file exists.
  
! `output-exists-not [{ target/xfail SELECTOR }]'
       Passes if compiler output file does not exist.
  
  7.2.6.5 Check for LTO tests
  ...........................
  
! `scan-symbol REGEXP [{ target/xfail SELECTOR }]'
       Passes if the pattern is present in the final executable.
  
! 7.2.6.6 Checks for `gcov' tests
  ...............................
  
! `run-gcov SOURCEFILE'
!      Check line counts in `gcov' tests.
  
! `run-gcov [branches] [calls] { OPTS SOURCEFILE }'
       Check branch and/or call counts, in addition to line counts, in
!      `gcov' tests.
  
  7.2.6.7 Clean up generated test files
  .....................................
  
  Usually the test-framework removes files that were generated during
! testing. If a testcase, for example, uses any dumping mechanism to
  inspect a passes dump file, the testsuite recognized the dump option
  passed to the tool and schedules a final cleanup to remove these files.
  
   There are, however, following additional cleanup directives that can be
  used to annotate a testcase "manually".
! `cleanup-coverage-files'
       Removes coverage data files generated for this test.
  
! `cleanup-modules "LIST-OF-EXTRA-MODULES"'
       Removes Fortran module files generated for this test, excluding the
       module names listed in keep-modules.  Cleaning up module files is
       usually done automatically by the testsuite by looking at the
--- 4511,5519 ----
  for particular targets, or to specify that particular sets of targets
  are expected to fail some tests.
  
!  Effective-target keywords are defined in 'lib/target-supports.exp' in
  the GCC testsuite, with the exception of those that are documented as
  being local to a particular test directory.
  
!  The 'effective target' takes into account all of the compiler options
  with which the test will be compiled, including the multilib options.
! By convention, keywords ending in '_nocache' can also include options
! specified for the particular test in an earlier 'dg-options' or
! 'dg-add-options' directive.
  
  7.2.3.1 Data type sizes
  .......................
  
! 'ilp32'
!      Target has 32-bit 'int', 'long', and pointers.
  
! 'lp64'
!      Target has 32-bit 'int', 64-bit 'long' and pointers.
  
! 'llp64'
!      Target has 32-bit 'int' and 'long', 64-bit 'long long' and
       pointers.
  
! 'double64'
!      Target has 64-bit 'double'.
  
! 'double64plus'
!      Target has 'double' that is 64 bits or longer.
  
! 'longdouble128'
!      Target has 128-bit 'long double'.
  
! 'int32plus'
!      Target has 'int' that is at 32 bits or longer.
  
! 'int16'
!      Target has 'int' that is 16 bits or shorter.
  
! 'long_neq_int'
!      Target has 'int' and 'long' with different sizes.
  
! 'large_double'
!      Target supports 'double' that is longer than 'float'.
  
! 'large_long_double'
!      Target supports 'long double' that is longer than 'double'.
  
! 'ptr32plus'
       Target has pointers that are 32 bits or longer.
  
! 'size32plus'
       Target supports array and structure sizes that are 32 bits or
       longer.
  
! '4byte_wchar_t'
!      Target has 'wchar_t' that is at least 4 bytes.
  
  7.2.3.2 Fortran-specific attributes
  ...................................
  
! 'fortran_integer_16'
!      Target supports Fortran 'integer' that is 16 bytes or longer.
  
! 'fortran_large_int'
!      Target supports Fortran 'integer' kinds larger than 'integer(8)'.
  
! 'fortran_large_real'
!      Target supports Fortran 'real' kinds larger than 'real(8)'.
  
  7.2.3.3 Vector-specific attributes
  ..................................
  
! 'vect_condition'
       Target supports vector conditional operations.
  
! 'vect_double'
!      Target supports hardware vectors of 'double'.
  
! 'vect_float'
!      Target supports hardware vectors of 'float'.
  
! 'vect_int'
!      Target supports hardware vectors of 'int'.
  
! 'vect_long'
!      Target supports hardware vectors of 'long'.
  
! 'vect_long_long'
!      Target supports hardware vectors of 'long long'.
  
! 'vect_aligned_arrays'
       Target aligns arrays to vector alignment boundary.
  
! 'vect_hw_misalign'
       Target supports a vector misalign access.
  
! 'vect_no_align'
       Target does not support a vector alignment mechanism.
  
! 'vect_no_int_min_max'
!      Target does not support a vector min and max instruction on 'int'.
  
! 'vect_no_int_add'
!      Target does not support a vector add instruction on 'int'.
  
! 'vect_no_bitwise'
       Target does not support vector bitwise instructions.
  
! 'vect_char_mult'
!      Target supports 'vector char' multiplication.
  
! 'vect_short_mult'
!      Target supports 'vector short' multiplication.
  
! 'vect_int_mult'
!      Target supports 'vector int' multiplication.
  
! 'vect_extract_even_odd'
       Target supports vector even/odd element extraction.
  
! 'vect_extract_even_odd_wide'
       Target supports vector even/odd element extraction of vectors with
!      elements 'SImode' or larger.
  
! 'vect_interleave'
       Target supports vector interleaving.
  
! 'vect_strided'
       Target supports vector interleaving and extract even/odd.
  
! 'vect_strided_wide'
       Target supports vector interleaving and extract even/odd for wide
       element types.
  
! 'vect_perm'
       Target supports vector permutation.
  
! 'vect_shift'
       Target supports a hardware vector shift operation.
  
! 'vect_widen_sum_hi_to_si'
!      Target supports a vector widening summation of 'short' operands
!      into 'int' results, or can promote (unpack) from 'short' to 'int'.
  
! 'vect_widen_sum_qi_to_hi'
!      Target supports a vector widening summation of 'char' operands into
!      'short' results, or can promote (unpack) from 'char' to 'short'.
  
! 'vect_widen_sum_qi_to_si'
!      Target supports a vector widening summation of 'char' operands into
!      'int' results.
  
! 'vect_widen_mult_qi_to_hi'
!      Target supports a vector widening multiplication of 'char' operands
!      into 'short' results, or can promote (unpack) from 'char' to
!      'short' and perform non-widening multiplication of 'short'.
  
! 'vect_widen_mult_hi_to_si'
!      Target supports a vector widening multiplication of 'short'
!      operands into 'int' results, or can promote (unpack) from 'short'
!      to 'int' and perform non-widening multiplication of 'int'.
  
! 'vect_widen_mult_si_to_di_pattern'
!      Target supports a vector widening multiplication of 'int' operands
!      into 'long' results.
  
! 'vect_sdot_qi'
!      Target supports a vector dot-product of 'signed char'.
  
! 'vect_udot_qi'
!      Target supports a vector dot-product of 'unsigned char'.
  
! 'vect_sdot_hi'
!      Target supports a vector dot-product of 'signed short'.
  
! 'vect_udot_hi'
!      Target supports a vector dot-product of 'unsigned short'.
  
! 'vect_pack_trunc'
!      Target supports a vector demotion (packing) of 'short' to 'char'
!      and from 'int' to 'short' using modulo arithmetic.
  
! 'vect_unpack'
!      Target supports a vector promotion (unpacking) of 'char' to 'short'
!      and from 'char' to 'int'.
  
! 'vect_intfloat_cvt'
!      Target supports conversion from 'signed int' to 'float'.
  
! 'vect_uintfloat_cvt'
!      Target supports conversion from 'unsigned int' to 'float'.
  
! 'vect_floatint_cvt'
!      Target supports conversion from 'float' to 'signed int'.
  
! 'vect_floatuint_cvt'
!      Target supports conversion from 'float' to 'unsigned int'.
  
! 'vect_max_reduc'
       Target supports max reduction for vectors.
  
  7.2.3.4 Thread Local Storage attributes
  .......................................
  
! 'tls'
       Target supports thread-local storage.
  
! 'tls_native'
       Target supports native (rather than emulated) thread-local storage.
  
! 'tls_runtime'
       Test system supports executing TLS executables.
  
  7.2.3.5 Decimal floating point attributes
  .........................................
  
! 'dfp'
       Targets supports compiling decimal floating point extension to C.
  
! 'dfp_nocache'
       Including the options used to compile this particular test, the
       target supports compiling decimal floating point extension to C.
  
! 'dfprt'
       Test system can execute decimal floating point tests.
  
! 'dfprt_nocache'
       Including the options used to compile this particular test, the
       test system can execute decimal floating point tests.
  
! 'hard_dfp'
       Target generates decimal floating point instructions with current
       options.
  
  7.2.3.6 ARM-specific attributes
  ...............................
  
! 'arm32'
       ARM target generates 32-bit code.
  
! 'arm_eabi'
       ARM target adheres to the ABI for the ARM Architecture.
  
! 'arm_fp_ok'
!      ARM target defines '__ARM_FP' using '-mfloat-abi=softfp' or
       equivalent options.  Some multilibs may be incompatible with these
       options.
  
! 'arm_hf_eabi'
       ARM target adheres to the VFP and Advanced SIMD Register Arguments
       variant of the ABI for the ARM Architecture (as selected with
!      '-mfloat-abi=hard').
  
! 'arm_hard_vfp_ok'
!      ARM target supports '-mfpu=vfp -mfloat-abi=hard'.  Some multilibs
       may be incompatible with these options.
  
! 'arm_iwmmxt_ok'
!      ARM target supports '-mcpu=iwmmxt'.  Some multilibs may be
       incompatible with this option.
  
! 'arm_neon'
       ARM target supports generating NEON instructions.
  
! 'arm_tune_string_ops_prefer_neon'
       Test CPU tune supports inlining string operations with NEON
       instructions.
  
! 'arm_neon_hw'
       Test system supports executing NEON instructions.
  
! 'arm_neonv2_hw'
       Test system supports executing NEON v2 instructions.
  
! 'arm_neon_ok'
!      ARM Target supports '-mfpu=neon -mfloat-abi=softfp' or compatible
       options.  Some multilibs may be incompatible with these options.
  
! 'arm_neonv2_ok'
!      ARM Target supports '-mfpu=neon-vfpv4 -mfloat-abi=softfp' or
       compatible options.  Some multilibs may be incompatible with these
       options.
  
! 'arm_neon_fp16_ok'
!      ARM Target supports '-mfpu=neon-fp16 -mfloat-abi=softfp' or
!      compatible options, including '-mfp16-format=ieee' if necessary to
!      obtain the '__fp16' type.  Some multilibs may be incompatible with
       these options.
  
! 'arm_neon_fp16_hw'
       Test system supports executing Neon half-precision float
       instructions.  (Implies previous.)
  
! 'arm_thumb1_ok'
!      ARM target generates Thumb-1 code for '-mthumb'.
  
! 'arm_thumb2_ok'
!      ARM target generates Thumb-2 code for '-mthumb'.
  
! 'arm_vfp_ok'
!      ARM target supports '-mfpu=vfp -mfloat-abi=softfp'.  Some multilibs
!      may be incompatible with these options.
  
! 'arm_vfp3_ok'
!      ARM target supports '-mfpu=vfp3 -mfloat-abi=softfp'.  Some
       multilibs may be incompatible with these options.
  
! 'arm_v8_vfp_ok'
!      ARM target supports '-mfpu=fp-armv8 -mfloat-abi=softfp'.  Some
       multilibs may be incompatible with these options.
  
! 'arm_v8_neon_ok'
!      ARM target supports '-mfpu=neon-fp-armv8 -mfloat-abi=softfp'.  Some
!      multilibs may be incompatible with these options.
  
! 'arm_v8_1a_neon_ok'
       ARM target supports options to generate ARMv8.1 Adv.SIMD
       instructions.  Some multilibs may be incompatible with these
       options.
  
! 'arm_v8_1a_neon_hw'
       ARM target supports executing ARMv8.1 Adv.SIMD instructions.  Some
       multilibs may be incompatible with the options needed.  Implies
       arm_v8_1a_neon_ok.
  
! 'arm_prefer_ldrd_strd'
!      ARM target prefers 'LDRD' and 'STRD' instructions over 'LDM' and
!      'STM' instructions.
  
  7.2.3.7 AArch64-specific attributes
  ...................................
  
! 'aarch64_asm_<ext>_ok'
!      AArch64 assembler supports the architecture extension 'ext' via the
!      '.arch_extension' pseudo-op.
! 'aarch64_tiny'
       AArch64 target which generates instruction sequences for tiny
       memory model.
! 'aarch64_small'
       AArch64 target which generates instruction sequences for small
       memory model.
! 'aarch64_large'
       AArch64 target which generates instruction sequences for large
       memory model.
! 'aarch64_little_endian'
       AArch64 target which generates instruction sequences for little
       endian.
! 'aarch64_big_endian'
       AArch64 target which generates instruction sequences for big
       endian.
! 'aarch64_small_fpic'
       Binutils installed on test system supports relocation types
       required by -fpic for AArch64 small memory model.
  
  7.2.3.8 MIPS-specific attributes
  ................................
  
! 'mips64'
       MIPS target supports 64-bit instructions.
  
! 'nomips16'
       MIPS target does not produce MIPS16 code.
  
! 'mips16_attribute'
       MIPS target can generate MIPS16 code.
  
! 'mips_loongson'
       MIPS target is a Loongson-2E or -2F target using an ABI that
       supports the Loongson vector modes.
  
! 'mips_newabi_large_long_double'
!      MIPS target supports 'long double' larger than 'double' when using
       the new ABI.
  
! 'mpaired_single'
!      MIPS target supports '-mpaired-single'.
  
  7.2.3.9 PowerPC-specific attributes
  ...................................
  
! 'dfp_hw'
       PowerPC target supports executing hardware DFP instructions.
  
! 'p8vector_hw'
       PowerPC target supports executing VSX instructions (ISA 2.07).
  
! 'powerpc64'
       Test system supports executing 64-bit instructions.
  
! 'powerpc_altivec'
       PowerPC target supports AltiVec.
  
! 'powerpc_altivec_ok'
!      PowerPC target supports '-maltivec'.
  
! 'powerpc_eabi_ok'
!      PowerPC target supports '-meabi'.
  
! 'powerpc_elfv2'
!      PowerPC target supports '-mabi=elfv2'.
  
! 'powerpc_fprs'
       PowerPC target supports floating-point registers.
  
! 'powerpc_hard_double'
       PowerPC target supports hardware double-precision floating-point.
  
! 'powerpc_htm_ok'
!      PowerPC target supports '-mhtm'
  
! 'powerpc_p8vector_ok'
!      PowerPC target supports '-mpower8-vector'
  
! 'powerpc_ppu_ok'
!      PowerPC target supports '-mcpu=cell'.
  
! 'powerpc_spe'
       PowerPC target supports PowerPC SPE.
  
! 'powerpc_spe_nocache'
       Including the options used to compile this particular test, the
       PowerPC target supports PowerPC SPE.
  
! 'powerpc_spu'
       PowerPC target supports PowerPC SPU.
  
! 'powerpc_vsx_ok'
!      PowerPC target supports '-mvsx'.
  
! 'powerpc_405_nocache'
       Including the options used to compile this particular test, the
       PowerPC target supports PowerPC 405.
  
! 'ppc_recip_hw'
       PowerPC target supports executing reciprocal estimate instructions.
  
! 'spu_auto_overlay'
       SPU target has toolchain that supports automatic overlay
       generation.
  
! 'vmx_hw'
       PowerPC target supports executing AltiVec instructions.
  
! 'vsx_hw'
       PowerPC target supports executing VSX instructions (ISA 2.06).
  
  7.2.3.10 Other hardware attributes
  ..................................
  
! 'avx'
!      Target supports compiling 'avx' instructions.
  
! 'avx_runtime'
!      Target supports the execution of 'avx' instructions.
  
! 'cell_hw'
       Test system can execute AltiVec and Cell PPU instructions.
  
! 'coldfire_fpu'
       Target uses a ColdFire FPU.
  
! 'hard_float'
       Target supports FPU instructions.
  
! 'non_strict_align'
       Target does not require strict alignment.
  
! 'sqrt_insn'
       Target has a square root instruction that the compiler can
       generate.
  
! 'sse'
!      Target supports compiling 'sse' instructions.
  
! 'sse_runtime'
!      Target supports the execution of 'sse' instructions.
  
! 'sse2'
!      Target supports compiling 'sse2' instructions.
  
! 'sse2_runtime'
!      Target supports the execution of 'sse2' instructions.
  
! 'sync_char_short'
!      Target supports atomic operations on 'char' and 'short'.
  
! 'sync_int_long'
!      Target supports atomic operations on 'int' and 'long'.
  
! 'ultrasparc_hw'
       Test environment appears to run executables on a simulator that
!      accepts only 'EM_SPARC' executables and chokes on 'EM_SPARC32PLUS'
!      or 'EM_SPARCV9' executables.
  
! 'vect_cmdline_needed'
       Target requires a command line argument to enable a SIMD
       instruction set.
  
! 'pie_copyreloc'
       The x86-64 target linker supports PIE with copy reloc.
  
  7.2.3.11 Environment attributes
  ...............................
  
! 'c'
       The language for the compiler under test is C.
  
! 'c++'
       The language for the compiler under test is C++.
  
! 'c99_runtime'
       Target provides a full C99 runtime.
  
! 'correct_iso_cpp_string_wchar_protos'
!      Target 'string.h' and 'wchar.h' headers provide C++ required
!      overloads for 'strchr' etc.  functions.
  
! 'dummy_wcsftime'
!      Target uses a dummy 'wcsftime' function that always returns zero.
  
! 'fd_truncate'
       Target can truncate a file from a file descriptor, as used by
!      'libgfortran/io/unix.c:fd_truncate'; i.e.  'ftruncate' or 'chsize'.
  
! 'freestanding'
!      Target is 'freestanding' as defined in section 4 of the C99
       standard.  Effectively, it is a target which supports no extra
       headers or libraries other than what is considered essential.
  
! 'init_priority'
       Target supports constructors with initialization priority
       arguments.
  
! 'inttypes_types'
!      Target has the basic signed and unsigned types in 'inttypes.h'.
       This is for tests that GCC's notions of these types agree with
!      those in the header, as some systems have only 'inttypes.h'.
  
! 'lax_strtofp'
       Target might have errors of a few ULP in string to floating-point
       conversion functions and overflow is not always detected correctly
       by those functions.
  
! 'mempcpy'
!      Target provides 'mempcpy' function.
  
! 'mmap'
!      Target supports 'mmap'.
  
! 'newlib'
       Target supports Newlib.
  
! 'pow10'
!      Target provides 'pow10' function.
  
! 'pthread'
!      Target can compile using 'pthread.h' with no errors or warnings.
  
! 'pthread_h'
!      Target has 'pthread.h'.
  
! 'run_expensive_tests'
       Expensive testcases (usually those that consume excessive amounts
       of CPU time) should be run on this target.  This can be enabled by
!      setting the 'GCC_TEST_RUN_EXPENSIVE' environment variable to a
       non-empty string.
  
! 'simulator'
!      Test system runs executables on a simulator (i.e.  slowly) rather
!      than hardware (i.e.  fast).
  
! 'stabs'
       Target supports the stabs debugging format.
  
! 'stdint_types'
!      Target has the basic signed and unsigned C types in 'stdint.h'.
!      This will be obsolete when GCC ensures a working 'stdint.h' for all
!      targets.
  
! 'stpcpy'
!      Target provides 'stpcpy' function.
  
! 'trampolines'
       Target supports trampolines.
  
! 'uclibc'
       Target supports uClibc.
  
! 'unwrapped'
       Target does not use a status wrapper.
  
! 'vxworks_kernel'
       Target is a VxWorks kernel.
  
! 'vxworks_rtp'
       Target is a VxWorks RTP.
  
! 'wchar'
       Target supports wide characters.
  
  7.2.3.12 Other attributes
  .........................
  
! 'automatic_stack_alignment'
       Target supports automatic stack alignment.
  
! 'cxa_atexit'
!      Target uses '__cxa_atexit'.
  
! 'default_packed'
       Target has packed layout of structure members by default.
  
! 'fgraphite'
       Target supports Graphite optimizations.
  
! 'fixed_point'
       Target supports fixed-point extension to C.
  
! 'fopenacc'
!      Target supports OpenACC via '-fopenacc'.
  
! 'fopenmp'
!      Target supports OpenMP via '-fopenmp'.
  
! 'fpic'
!      Target supports '-fpic' and '-fPIC'.
  
! 'freorder'
!      Target supports '-freorder-blocks-and-partition'.
  
! 'fstack_protector'
!      Target supports '-fstack-protector'.
  
! 'gas'
!      Target uses GNU 'as'.
  
! 'gc_sections'
!      Target supports '--gc-sections'.
  
! 'gld'
!      Target uses GNU 'ld'.
  
! 'keeps_null_pointer_checks'
       Target keeps null pointer checks, either due to the use of
!      '-fno-delete-null-pointer-checks' or hardwired into the target.
  
! 'lto'
       Compiler has been configured to support link-time optimization
       (LTO).
  
! 'naked_functions'
!      Target supports the 'naked' function attribute.
  
! 'named_sections'
       Target supports named sections.
  
! 'natural_alignment_32'
       Target uses natural alignment (aligned to type size) for types of
       32 bits or less.
  
! 'target_natural_alignment_64'
       Target uses natural alignment (aligned to type size) for types of
       64 bits or less.
  
! 'nonpic'
       Target does not generate PIC by default.
  
! 'pie_enabled'
       Target generates PIE by default.
  
! 'pcc_bitfield_type_matters'
!      Target defines 'PCC_BITFIELD_TYPE_MATTERS'.
  
! 'pe_aligned_commons'
!      Target supports '-mpe-aligned-commons'.
  
! 'pie'
!      Target supports '-pie', '-fpie' and '-fPIE'.
  
! 'rdynamic'
!      Target supports '-rdynamic'.
  
! 'section_anchors'
       Target supports section anchors.
  
! 'short_enums'
       Target defaults to short enums.
  
! 'static'
!      Target supports '-static'.
  
! 'static_libgfortran'
!      Target supports statically linking 'libgfortran'.
  
! 'string_merging'
       Target supports merging string constants at link time.
  
! 'ucn'
       Target supports compiling and assembling UCN.
  
! 'ucn_nocache'
       Including the options used to compile this particular test, the
       target supports compiling and assembling UCN.
  
! 'unaligned_stack'
!      Target does not guarantee that its 'STACK_BOUNDARY' is greater than
       or equal to the required vector alignment.
  
! 'vector_alignment_reachable'
       Vector alignment is reachable for types of 32 bits or less.
  
! 'vector_alignment_reachable_for_64bit'
       Vector alignment is reachable for types of 64 bits or less.
  
! 'wchar_t_char16_t_compatible'
!      Target supports 'wchar_t' that is compatible with 'char16_t'.
  
! 'wchar_t_char32_t_compatible'
!      Target supports 'wchar_t' that is compatible with 'char32_t'.
  
! 'comdat_group'
       Target uses comdat groups.
  
! 7.2.3.13 Local to tests in 'gcc.target/i386'
  ............................................
  
! '3dnow'
!      Target supports compiling '3dnow' instructions.
  
! 'aes'
!      Target supports compiling 'aes' instructions.
  
! 'fma4'
!      Target supports compiling 'fma4' instructions.
  
! 'ms_hook_prologue'
!      Target supports attribute 'ms_hook_prologue'.
  
! 'pclmul'
!      Target supports compiling 'pclmul' instructions.
  
! 'sse3'
!      Target supports compiling 'sse3' instructions.
  
! 'sse4'
!      Target supports compiling 'sse4' instructions.
  
! 'sse4a'
!      Target supports compiling 'sse4a' instructions.
  
! 'ssse3'
!      Target supports compiling 'ssse3' instructions.
  
! 'vaes'
!      Target supports compiling 'vaes' instructions.
  
! 'vpclmul'
!      Target supports compiling 'vpclmul' instructions.
  
! 'xop'
!      Target supports compiling 'xop' instructions.
  
! 7.2.3.14 Local to tests in 'gcc.target/spu/ea'
  ..............................................
  
! 'ealib'
!      Target '__ea' library functions are available.
  
! 7.2.3.15 Local to tests in 'gcc.test-framework'
  ...............................................
  
! 'no'
       Always returns 0.
  
! 'yes'
       Always returns 1.
  
  
  File: gccint.info,  Node: Add Options,  Next: Require Support,  Prev: Effective-Target Keywords,  Up: Test Directives
  
! 7.2.4 Features for 'dg-add-options'
  -----------------------------------
  
! The supported values of FEATURE for directive 'dg-add-options' are:
  
! 'arm_fp'
!      '__ARM_FP' definition.  Only ARM targets support this feature, and
       only then in certain modes; see the *note arm_fp_ok effective
       target keyword: arm_fp_ok.
  
! 'arm_neon'
       NEON support.  Only ARM targets support this feature, and only then
       in certain modes; see the *note arm_neon_ok effective target
       keyword: arm_neon_ok.
  
! 'arm_neon_fp16'
       NEON and half-precision floating point support.  Only ARM targets
!      support this feature, and only then in certain modes; see the *note
!      arm_neon_fp16_ok effective target keyword: arm_neon_fp16_ok.
  
! 'arm_vfp3'
       arm vfp3 floating point support; see the *note arm_vfp3_ok
       effective target keyword: arm_vfp3_ok.
  
! 'bind_pic_locally'
       Add the target-specific flags needed to enable functions to bind
       locally when using pic/PIC passes in the testsuite.
  
! 'c99_runtime'
       Add the target-specific flags needed to access the C99 runtime.
  
! 'ieee'
!      Add the target-specific flags needed to enable full IEEE compliance
!      mode.
  
! 'mips16_attribute'
!      'mips16' function attributes.  Only MIPS targets support this
       feature, and only then in certain modes.
  
! 'tls'
       Add the target-specific flags needed to use thread-local storage.
  
  
  File: gccint.info,  Node: Require Support,  Next: Final Actions,  Prev: Add Options,  Up: Test Directives
  
! 7.2.5 Variants of 'dg-require-SUPPORT'
  --------------------------------------
  
! A few of the 'dg-require' directives take arguments.
  
! 'dg-require-iconv CODESET'
!      Skip the test if the target does not support iconv.  CODESET is the
!      codeset to convert to.
  
! 'dg-require-profiling PROFOPT'
       Skip the test if the target does not support profiling with option
       PROFOPT.
  
! 'dg-require-visibility VIS'
!      Skip the test if the target does not support the 'visibility'
!      attribute.  If VIS is '""', support for 'visibility("hidden")' is
!      checked, for 'visibility("VIS")' otherwise.
  
!  The original 'dg-require' directives were defined before there was
  support for effective-target keywords.  The directives that do not take
  arguments could be replaced with effective-target keywords.
  
! 'dg-require-alias ""'
!      Skip the test if the target does not support the 'alias' attribute.
  
! 'dg-require-ascii-locale ""'
       Skip the test if the host does not support an ASCII locale.
  
! 'dg-require-compat-dfp ""'
!      Skip this test unless both compilers in a 'compat' testsuite
       support decimal floating point.
  
! 'dg-require-cxa-atexit ""'
!      Skip the test if the target does not support '__cxa_atexit'.  This
!      is equivalent to 'dg-require-effective-target cxa_atexit'.
  
! 'dg-require-dll ""'
       Skip the test if the target does not support DLL attributes.
  
! 'dg-require-fork ""'
!      Skip the test if the target does not support 'fork'.
  
! 'dg-require-gc-sections ""'
       Skip the test if the target's linker does not support the
!      '--gc-sections' flags.  This is equivalent to
!      'dg-require-effective-target gc-sections'.
  
! 'dg-require-host-local ""'
       Skip the test if the host is remote, rather than the same as the
       build system.  Some tests are incompatible with DejaGnu's handling
!      of remote hosts, which involves copying the source file to the host
!      and compiling it with a relative path and "'-o a.out'".
  
! 'dg-require-mkfifo ""'
!      Skip the test if the target does not support 'mkfifo'.
  
! 'dg-require-named-sections ""'
       Skip the test is the target does not support named sections.  This
!      is equivalent to 'dg-require-effective-target named_sections'.
  
! 'dg-require-weak ""'
       Skip the test if the target does not support weak symbols.
  
! 'dg-require-weak-override ""'
       Skip the test if the target does not support overriding weak
       symbols.
  
  
  File: gccint.info,  Node: Final Actions,  Prev: Require Support,  Up: Test Directives
  
! 7.2.6 Commands for use in 'dg-final'
  ------------------------------------
  
  The GCC testsuite defines the following directives to be used within
! 'dg-final'.
  
  7.2.6.1 Scan a particular file
  ..............................
  
! 'scan-file FILENAME REGEXP [{ target/xfail SELECTOR }]'
       Passes if REGEXP matches text in FILENAME.
! 'scan-file-not FILENAME REGEXP [{ target/xfail SELECTOR }]'
       Passes if REGEXP does not match text in FILENAME.
! 'scan-module MODULE REGEXP [{ target/xfail SELECTOR }]'
       Passes if REGEXP matches in Fortran module MODULE.
  
  7.2.6.2 Scan the assembly output
  ................................
  
! 'scan-assembler REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX matches text in the test's assembler output.
  
! 'scan-assembler-not REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match text in the test's assembler output.
  
! 'scan-assembler-times REGEX NUM [{ target/xfail SELECTOR }]'
       Passes if REGEX is matched exactly NUM times in the test's
       assembler output.
  
! 'scan-assembler-dem REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX matches text in the test's demangled assembler
       output.
  
! 'scan-assembler-dem-not REGEX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match text in the test's demangled
       assembler output.
  
! 'scan-hidden SYMBOL [{ target/xfail SELECTOR }]'
       Passes if SYMBOL is defined as a hidden symbol in the test's
       assembly output.
  
! 'scan-not-hidden SYMBOL [{ target/xfail SELECTOR }]'
       Passes if SYMBOL is not defined as a hidden symbol in the test's
       assembly output.
  
  7.2.6.3 Scan optimization dump files
  ....................................
  
! These commands are available for KIND of 'tree', 'rtl', and 'ipa'.
  
! 'scan-KIND-dump REGEX SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX matches text in the dump file with suffix SUFFIX.
  
! 'scan-KIND-dump-not REGEX SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match text in the dump file with suffix
       SUFFIX.
  
! 'scan-KIND-dump-times REGEX NUM SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX is found exactly NUM times in the dump file with
       suffix SUFFIX.
  
! 'scan-KIND-dump-dem REGEX SUFFIX [{ target/xfail SELECTOR }]'
!      Passes if REGEX matches demangled text in the dump file with suffix
!      SUFFIX.
  
! 'scan-KIND-dump-dem-not REGEX SUFFIX [{ target/xfail SELECTOR }]'
       Passes if REGEX does not match demangled text in the dump file with
       suffix SUFFIX.
  
  7.2.6.4 Verify that an output files exists or not
  .................................................
  
! 'output-exists [{ target/xfail SELECTOR }]'
       Passes if compiler output file exists.
  
! 'output-exists-not [{ target/xfail SELECTOR }]'
       Passes if compiler output file does not exist.
  
  7.2.6.5 Check for LTO tests
  ...........................
  
! 'scan-symbol REGEXP [{ target/xfail SELECTOR }]'
       Passes if the pattern is present in the final executable.
  
! 7.2.6.6 Checks for 'gcov' tests
  ...............................
  
! 'run-gcov SOURCEFILE'
!      Check line counts in 'gcov' tests.
  
! 'run-gcov [branches] [calls] { OPTS SOURCEFILE }'
       Check branch and/or call counts, in addition to line counts, in
!      'gcov' tests.
  
  7.2.6.7 Clean up generated test files
  .....................................
  
  Usually the test-framework removes files that were generated during
! testing.  If a testcase, for example, uses any dumping mechanism to
  inspect a passes dump file, the testsuite recognized the dump option
  passed to the tool and schedules a final cleanup to remove these files.
  
   There are, however, following additional cleanup directives that can be
  used to annotate a testcase "manually".
! 'cleanup-coverage-files'
       Removes coverage data files generated for this test.
  
! 'cleanup-modules "LIST-OF-EXTRA-MODULES"'
       Removes Fortran module files generated for this test, excluding the
       module names listed in keep-modules.  Cleaning up module files is
       usually done automatically by the testsuite by looking at the
*************** used to annotate a testcase "manually".
*** 5643,5649 ****
            ! { dg-final { cleanup-modules "mod1 mod2" } } ! redundant
            ! { dg-final { keep-modules "mod3 mod4" } }
  
! `keep-modules "LIST-OF-MODULES-NOT-TO-DELETE"'
       Whitespace separated list of module names that should not be
       deleted by cleanup-modules.  If the list of modules is empty, all
       modules defined in this file are kept.
--- 5530,5536 ----
            ! { dg-final { cleanup-modules "mod1 mod2" } } ! redundant
            ! { dg-final { keep-modules "mod3 mod4" } }
  
! 'keep-modules "LIST-OF-MODULES-NOT-TO-DELETE"'
       Whitespace separated list of module names that should not be
       deleted by cleanup-modules.  If the list of modules is empty, all
       modules defined in this file are kept.
*************** used to annotate a testcase "manually".
*** 5656,5676 ****
            ! { dg-final { keep-modules "keep1 keep2" } } ! just keep these two
            ! { dg-final { keep-modules "" } } ! keep all
  
! `dg-keep-saved-temps "LIST-OF-SUFFIXES-NOT-TO-DELETE"'
       Whitespace separated list of suffixes that should not be deleted
!      automatically in a testcase that uses `-save-temps'.
            // { dg-options "-save-temps -fpch-preprocess -I." }
            int main() { return 0; }
            // { dg-keep-saved-temps ".s" } ! just keep assembler file
            // { dg-keep-saved-temps ".s" ".i" } ! ... and .i
            // { dg-keep-saved-temps ".ii" ".o" } ! or just .ii and .o
  
! `cleanup-profile-file'
       Removes profiling files generated for this test.
  
! `cleanup-repo-files'
!      Removes files generated for this test for `-frepo'.
! 
  
  
  File: gccint.info,  Node: Ada Tests,  Next: C Tests,  Prev: Test Directives,  Up: Testsuites
--- 5543,5562 ----
            ! { dg-final { keep-modules "keep1 keep2" } } ! just keep these two
            ! { dg-final { keep-modules "" } } ! keep all
  
! 'dg-keep-saved-temps "LIST-OF-SUFFIXES-NOT-TO-DELETE"'
       Whitespace separated list of suffixes that should not be deleted
!      automatically in a testcase that uses '-save-temps'.
            // { dg-options "-save-temps -fpch-preprocess -I." }
            int main() { return 0; }
            // { dg-keep-saved-temps ".s" } ! just keep assembler file
            // { dg-keep-saved-temps ".s" ".i" } ! ... and .i
            // { dg-keep-saved-temps ".ii" ".o" } ! or just .ii and .o
  
! 'cleanup-profile-file'
       Removes profiling files generated for this test.
  
! 'cleanup-repo-files'
!      Removes files generated for this test for '-frepo'.
  
  
  File: gccint.info,  Node: Ada Tests,  Next: C Tests,  Prev: Test Directives,  Up: Testsuites
*************** File: gccint.info,  Node: Ada Tests,  Ne
*** 5679,5710 ****
  ===========================
  
  The Ada testsuite includes executable tests from the ACATS testsuite,
! publicly available at `http://www.ada-auth.org/acats.html'.
  
!  These tests are integrated in the GCC testsuite in the `ada/acats'
! directory, and enabled automatically when running `make check', assuming
  the Ada language has been enabled when configuring GCC.
  
!  You can also run the Ada testsuite independently, using `make
  check-ada', or run a subset of the tests by specifying which chapter to
  run, e.g.:
  
       $ make check-ada CHAPTERS="c3 c9"
  
!  The tests are organized by directory, each directory corresponding to
! a chapter of the Ada Reference Manual.  So for example, `c9' corresponds
  to chapter 9, which deals with tasking features of the language.
  
!  There is also an extra chapter called `gcc' containing a template for
  creating new executable tests, although this is deprecated in favor of
! the `gnat.dg' testsuite.
  
!  The tests are run using two `sh' scripts: `run_acats' and
! `run_all.sh'.  To run the tests using a simulator or a cross target,
! see the small customization section at the top of `run_all.sh'.
  
   These tests are run using the build tree: they can be run without doing
! a `make install'.
  
  
  File: gccint.info,  Node: C Tests,  Next: libgcj Tests,  Prev: Ada Tests,  Up: Testsuites
--- 5565,5596 ----
  ===========================
  
  The Ada testsuite includes executable tests from the ACATS testsuite,
! publicly available at <http://www.ada-auth.org/acats.html>.
  
!  These tests are integrated in the GCC testsuite in the 'ada/acats'
! directory, and enabled automatically when running 'make check', assuming
  the Ada language has been enabled when configuring GCC.
  
!  You can also run the Ada testsuite independently, using 'make
  check-ada', or run a subset of the tests by specifying which chapter to
  run, e.g.:
  
       $ make check-ada CHAPTERS="c3 c9"
  
!  The tests are organized by directory, each directory corresponding to a
! chapter of the Ada Reference Manual.  So for example, 'c9' corresponds
  to chapter 9, which deals with tasking features of the language.
  
!  There is also an extra chapter called 'gcc' containing a template for
  creating new executable tests, although this is deprecated in favor of
! the 'gnat.dg' testsuite.
  
!  The tests are run using two 'sh' scripts: 'run_acats' and 'run_all.sh'.
! To run the tests using a simulator or a cross target, see the small
! customization section at the top of 'run_all.sh'.
  
   These tests are run using the build tree: they can be run without doing
! a 'make install'.
  
  
  File: gccint.info,  Node: C Tests,  Next: libgcj Tests,  Prev: Ada Tests,  Up: Testsuites
*************** File: gccint.info,  Node: C Tests,  Next
*** 5712,5827 ****
  7.4 C Language Testsuites
  =========================
  
! GCC contains the following C language testsuites, in the
! `gcc/testsuite' directory:
  
! `gcc.dg'
!      This contains tests of particular features of the C compiler,
!      using the more modern `dg' harness.  Correctness tests for various
       compiler features should go here if possible.
  
       Magic comments determine whether the file is preprocessed,
!      compiled, linked or run.  In these tests, error and warning
!      message texts are compared against expected texts or regular
!      expressions given in comments.  These tests are run with the
!      options `-ansi -pedantic' unless other options are given in the
!      test.  Except as noted below they are not run with multiple
!      optimization options.
! 
! `gcc.dg/compat'
       This subdirectory contains tests for binary compatibility using
!      `lib/compat.exp', which in turn uses the language-independent
       support (*note Support for testing binary compatibility: compat
       Testing.).
! 
! `gcc.dg/cpp'
       This subdirectory contains tests of the preprocessor.
! 
! `gcc.dg/debug'
       This subdirectory contains tests for debug formats.  Tests in this
       subdirectory are run for each debug format that the compiler
       supports.
! 
! `gcc.dg/format'
!      This subdirectory contains tests of the `-Wformat' format
!      checking.  Tests in this directory are run with and without
!      `-DWIDE'.
! 
! `gcc.dg/noncompile'
       This subdirectory contains tests of code that should not compile
       and does not need any special compilation options.  They are run
       with multiple optimization options, since sometimes invalid code
       crashes the compiler with optimization.
! 
! `gcc.dg/special'
       FIXME: describe this.
  
! `gcc.c-torture'
       This contains particular code fragments which have historically
       broken easily.  These tests are run with multiple optimization
       options, so tests for features which only break at some
!      optimization levels belong here.  This also contains tests to
!      check that certain optimizations occur.  It might be worthwhile to
!      separate the correctness tests cleanly from the code quality
!      tests, but it hasn't been done yet.
  
! `gcc.c-torture/compat'
       FIXME: describe this.
  
       This directory should probably not be used for new tests.
! 
! `gcc.c-torture/compile'
       This testsuite contains test cases that should compile, but do not
       need to link or run.  These test cases are compiled with several
       different combinations of optimization options.  All warnings are
       disabled for these test cases, so this directory is not suitable if
       you wish to test for the presence or absence of compiler warnings.
       While special options can be set, and tests disabled on specific
!      platforms, by the use of `.x' files, mostly these test cases
!      should not contain platform dependencies.  FIXME: discuss how
!      defines such as `NO_LABEL_VALUES' and `STACK_SIZE' are used.
! 
! `gcc.c-torture/execute'
       This testsuite contains test cases that should compile, link and
!      run; otherwise the same comments as for `gcc.c-torture/compile'
       apply.
! 
! `gcc.c-torture/execute/ieee'
       This contains tests which are specific to IEEE floating point.
! 
! `gcc.c-torture/unsorted'
       FIXME: describe this.
  
       This directory should probably not be used for new tests.
! 
! `gcc.misc-tests'
       This directory contains C tests that require special handling.
       Some of these tests have individual expect files, and others share
       special-purpose expect files:
  
!     ``bprob*.c''
!           Test `-fbranch-probabilities' using
!           `gcc.misc-tests/bprob.exp', which in turn uses the generic,
            language-independent framework (*note Support for testing
            profile-directed optimizations: profopt Testing.).
  
!     ``gcov*.c''
!           Test `gcov' output using `gcov.exp', which in turn uses the
            language-independent support (*note Support for testing gcov:
            gcov Testing.).
  
!     ``i386-pf-*.c''
            Test i386-specific support for data prefetch using
!           `i386-prefetch.exp'.
! 
! `gcc.test-framework'
  
!     ``dg-*.c''
            Test the testsuite itself using
!           `gcc.test-framework/test-framework.exp'.
! 
  
!  FIXME: merge in `testsuite/README.gcc' and discuss the format of test
  cases and magic comments more.
  
  
--- 5598,5698 ----
  7.4 C Language Testsuites
  =========================
  
! GCC contains the following C language testsuites, in the 'gcc/testsuite'
! directory:
  
! 'gcc.dg'
!      This contains tests of particular features of the C compiler, using
!      the more modern 'dg' harness.  Correctness tests for various
       compiler features should go here if possible.
  
       Magic comments determine whether the file is preprocessed,
!      compiled, linked or run.  In these tests, error and warning message
!      texts are compared against expected texts or regular expressions
!      given in comments.  These tests are run with the options '-ansi
!      -pedantic' unless other options are given in the test.  Except as
!      noted below they are not run with multiple optimization options.
! 'gcc.dg/compat'
       This subdirectory contains tests for binary compatibility using
!      'lib/compat.exp', which in turn uses the language-independent
       support (*note Support for testing binary compatibility: compat
       Testing.).
! 'gcc.dg/cpp'
       This subdirectory contains tests of the preprocessor.
! 'gcc.dg/debug'
       This subdirectory contains tests for debug formats.  Tests in this
       subdirectory are run for each debug format that the compiler
       supports.
! 'gcc.dg/format'
!      This subdirectory contains tests of the '-Wformat' format checking.
!      Tests in this directory are run with and without '-DWIDE'.
! 'gcc.dg/noncompile'
       This subdirectory contains tests of code that should not compile
       and does not need any special compilation options.  They are run
       with multiple optimization options, since sometimes invalid code
       crashes the compiler with optimization.
! 'gcc.dg/special'
       FIXME: describe this.
  
! 'gcc.c-torture'
       This contains particular code fragments which have historically
       broken easily.  These tests are run with multiple optimization
       options, so tests for features which only break at some
!      optimization levels belong here.  This also contains tests to check
!      that certain optimizations occur.  It might be worthwhile to
!      separate the correctness tests cleanly from the code quality tests,
!      but it hasn't been done yet.
  
! 'gcc.c-torture/compat'
       FIXME: describe this.
  
       This directory should probably not be used for new tests.
! 'gcc.c-torture/compile'
       This testsuite contains test cases that should compile, but do not
       need to link or run.  These test cases are compiled with several
       different combinations of optimization options.  All warnings are
       disabled for these test cases, so this directory is not suitable if
       you wish to test for the presence or absence of compiler warnings.
       While special options can be set, and tests disabled on specific
!      platforms, by the use of '.x' files, mostly these test cases should
!      not contain platform dependencies.  FIXME: discuss how defines such
!      as 'NO_LABEL_VALUES' and 'STACK_SIZE' are used.
! 'gcc.c-torture/execute'
       This testsuite contains test cases that should compile, link and
!      run; otherwise the same comments as for 'gcc.c-torture/compile'
       apply.
! 'gcc.c-torture/execute/ieee'
       This contains tests which are specific to IEEE floating point.
! 'gcc.c-torture/unsorted'
       FIXME: describe this.
  
       This directory should probably not be used for new tests.
! 'gcc.misc-tests'
       This directory contains C tests that require special handling.
       Some of these tests have individual expect files, and others share
       special-purpose expect files:
  
!      'bprob*.c'
!           Test '-fbranch-probabilities' using
!           'gcc.misc-tests/bprob.exp', which in turn uses the generic,
            language-independent framework (*note Support for testing
            profile-directed optimizations: profopt Testing.).
  
!      'gcov*.c'
!           Test 'gcov' output using 'gcov.exp', which in turn uses the
            language-independent support (*note Support for testing gcov:
            gcov Testing.).
  
!      'i386-pf-*.c'
            Test i386-specific support for data prefetch using
!           'i386-prefetch.exp'.
  
! 'gcc.test-framework'
!      'dg-*.c'
            Test the testsuite itself using
!           'gcc.test-framework/test-framework.exp'.
  
!  FIXME: merge in 'testsuite/README.gcc' and discuss the format of test
  cases and magic comments more.
  
  
*************** File: gccint.info,  Node: libgcj Tests,
*** 5830,5849 ****
  7.5 The Java library testsuites.
  ================================
  
! Runtime tests are executed via `make check' in the
! `TARGET/libjava/testsuite' directory in the build tree.  Additional
  runtime tests can be checked into this testsuite.
  
   Regression testing of the core packages in libgcj is also covered by
  the Mauve testsuite.  The Mauve Project develops tests for the Java
  Class Libraries.  These tests are run as part of libgcj testing by
  placing the Mauve tree within the libjava testsuite sources at
! `libjava/testsuite/libjava.mauve/mauve', or by specifying the location
! of that tree when invoking `make', as in `make MAUVEDIR=~/mauve check'.
  
!  To detect regressions, a mechanism in `mauve.exp' compares the
! failures for a test run against the list of expected failures in
! `libjava/testsuite/libjava.mauve/xfails' from the source hierarchy.
  Update this file when adding new failing tests to Mauve, or when fixing
  bugs in libgcj that had caused Mauve test failures.
  
--- 5701,5720 ----
  7.5 The Java library testsuites.
  ================================
  
! Runtime tests are executed via 'make check' in the
! 'TARGET/libjava/testsuite' directory in the build tree.  Additional
  runtime tests can be checked into this testsuite.
  
   Regression testing of the core packages in libgcj is also covered by
  the Mauve testsuite.  The Mauve Project develops tests for the Java
  Class Libraries.  These tests are run as part of libgcj testing by
  placing the Mauve tree within the libjava testsuite sources at
! 'libjava/testsuite/libjava.mauve/mauve', or by specifying the location
! of that tree when invoking 'make', as in 'make MAUVEDIR=~/mauve check'.
  
!  To detect regressions, a mechanism in 'mauve.exp' compares the failures
! for a test run against the list of expected failures in
! 'libjava/testsuite/libjava.mauve/xfails' from the source hierarchy.
  Update this file when adding new failing tests to Mauve, or when fixing
  bugs in libgcj that had caused Mauve test failures.
  
*************** Tests for link-time optimizations usuall
*** 5859,5938 ****
  that are compiled separately, perhaps with different sets of options.
  There are several special-purpose test directives used for these tests.
  
! `{ dg-lto-do DO-WHAT-KEYWORD }'
       DO-WHAT-KEYWORD specifies how the test is compiled and whether it
       is executed.  It is one of:
  
!     `assemble'
!           Compile with `-c' to produce a relocatable object file.
! 
!     `link'
            Compile, assemble, and link to produce an executable file.
! 
!     `run'
            Produce and run an executable file, which is expected to
            return an exit code of 0.
  
!      The default is `assemble'.  That can be overridden for a set of
!      tests by redefining `dg-do-what-default' within the `.exp' file
!      for those tests.
  
!      Unlike `dg-do', `dg-lto-do' does not support an optional `target'
!      or `xfail' list.  Use `dg-skip-if', `dg-xfail-if', or
!      `dg-xfail-run-if'.
  
! `{ dg-lto-options { { OPTIONS } [{ OPTIONS }] } [{ target SELECTOR }]}'
       This directive provides a list of one or more sets of compiler
       options to override LTO_OPTIONS.  Each test will be compiled and
       run with each of these sets of options.
  
! `{ dg-extra-ld-options OPTIONS [{ target SELECTOR }]}'
       This directive adds OPTIONS to the linker options used.
  
! `{ dg-suppress-ld-options OPTIONS [{ target SELECTOR }]}'
       This directive removes OPTIONS from the set of linker options used.
  
  
  File: gccint.info,  Node: gcov Testing,  Next: profopt Testing,  Prev: LTO Testing,  Up: Testsuites
  
! 7.7 Support for testing `gcov'
  ==============================
  
! Language-independent support for testing `gcov', and for checking that
  branch profiling produces expected values, is provided by the expect
! file `lib/gcov.exp'.  `gcov' tests also rely on procedures in
! `lib/gcc-dg.exp' to compile and run the test program.  A typical `gcov'
  test contains the following DejaGnu commands within comments:
  
       { dg-options "-fprofile-arcs -ftest-coverage" }
       { dg-do run { target native } }
       { dg-final { run-gcov sourcefile } }
  
!  Checks of `gcov' output can include line counts, branch percentages,
  and call return percentages.  All of these checks are requested via
! commands that appear in comments in the test's source file.  Commands
! to check line counts are processed by default.  Commands to check
! branch percentages and call return percentages are processed if the
! `run-gcov' command has arguments `branches' or `calls', respectively.
! For example, the following specifies checking both, as well as passing
! `-b' to `gcov':
  
       { dg-final { run-gcov branches calls { -b sourcefile } } }
  
   A line count command appears within a comment on the source line that
! is expected to get the specified count and has the form `count(CNT)'.
! A test should only check line counts for lines that will get the same
  count for any architecture.
  
!  Commands to check branch percentages (`branch') and call return
! percentages (`returns') are very similar to each other.  A beginning
  command appears on or before the first of a range of lines that will
  report the percentage, and the ending command follows that range of
  lines.  The beginning command can include a list of percentages, all of
  which are expected to be found within the range.  A range is terminated
! by the next command of the same kind.  A command `branch(end)' or
! `returns(end)' marks the end of a range without starting a new one.
! For example:
  
       if (i > 10 && j > i && j < 20)  /* branch(27 50 75) */
                                       /* branch(end) */
--- 5730,5807 ----
  that are compiled separately, perhaps with different sets of options.
  There are several special-purpose test directives used for these tests.
  
! '{ dg-lto-do DO-WHAT-KEYWORD }'
       DO-WHAT-KEYWORD specifies how the test is compiled and whether it
       is executed.  It is one of:
  
!      'assemble'
!           Compile with '-c' to produce a relocatable object file.
!      'link'
            Compile, assemble, and link to produce an executable file.
!      'run'
            Produce and run an executable file, which is expected to
            return an exit code of 0.
  
!      The default is 'assemble'.  That can be overridden for a set of
!      tests by redefining 'dg-do-what-default' within the '.exp' file for
!      those tests.
  
!      Unlike 'dg-do', 'dg-lto-do' does not support an optional 'target'
!      or 'xfail' list.  Use 'dg-skip-if', 'dg-xfail-if', or
!      'dg-xfail-run-if'.
  
! '{ dg-lto-options { { OPTIONS } [{ OPTIONS }] } [{ target SELECTOR }]}'
       This directive provides a list of one or more sets of compiler
       options to override LTO_OPTIONS.  Each test will be compiled and
       run with each of these sets of options.
  
! '{ dg-extra-ld-options OPTIONS [{ target SELECTOR }]}'
       This directive adds OPTIONS to the linker options used.
  
! '{ dg-suppress-ld-options OPTIONS [{ target SELECTOR }]}'
       This directive removes OPTIONS from the set of linker options used.
  
  
  File: gccint.info,  Node: gcov Testing,  Next: profopt Testing,  Prev: LTO Testing,  Up: Testsuites
  
! 7.7 Support for testing 'gcov'
  ==============================
  
! Language-independent support for testing 'gcov', and for checking that
  branch profiling produces expected values, is provided by the expect
! file 'lib/gcov.exp'.  'gcov' tests also rely on procedures in
! 'lib/gcc-dg.exp' to compile and run the test program.  A typical 'gcov'
  test contains the following DejaGnu commands within comments:
  
       { dg-options "-fprofile-arcs -ftest-coverage" }
       { dg-do run { target native } }
       { dg-final { run-gcov sourcefile } }
  
!  Checks of 'gcov' output can include line counts, branch percentages,
  and call return percentages.  All of these checks are requested via
! commands that appear in comments in the test's source file.  Commands to
! check line counts are processed by default.  Commands to check branch
! percentages and call return percentages are processed if the 'run-gcov'
! command has arguments 'branches' or 'calls', respectively.  For example,
! the following specifies checking both, as well as passing '-b' to
! 'gcov':
  
       { dg-final { run-gcov branches calls { -b sourcefile } } }
  
   A line count command appears within a comment on the source line that
! is expected to get the specified count and has the form 'count(CNT)'.  A
! test should only check line counts for lines that will get the same
  count for any architecture.
  
!  Commands to check branch percentages ('branch') and call return
! percentages ('returns') are very similar to each other.  A beginning
  command appears on or before the first of a range of lines that will
  report the percentage, and the ending command follows that range of
  lines.  The beginning command can include a list of percentages, all of
  which are expected to be found within the range.  A range is terminated
! by the next command of the same kind.  A command 'branch(end)' or
! 'returns(end)' marks the end of a range without starting a new one.  For
! example:
  
       if (i > 10 && j > i && j < 20)  /* branch(27 50 75) */
                                       /* branch(end) */
*************** calls reported to return.  For a branch
*** 5943,5952 ****
  the expected percentage or 100 minus that value, since the direction of
  a branch can differ depending on the target or the optimization level.
  
!  Not all branches and calls need to be checked.  A test should not
! check for branches that might be optimized away or replaced with
! predicated instructions.  Don't check for calls inserted by the
! compiler or ones that might be inlined or optimized away.
  
   A single test can check for combinations of line counts, branch
  percentages, and call return percentages.  The command to check a line
--- 5812,5821 ----
  the expected percentage or 100 minus that value, since the direction of
  a branch can differ depending on the target or the optimization level.
  
!  Not all branches and calls need to be checked.  A test should not check
! for branches that might be optimized away or replaced with predicated
! instructions.  Don't check for calls inserted by the compiler or ones
! that might be inlined or optimized away.
  
   A single test can check for combinations of line counts, branch
  percentages, and call return percentages.  The command to check a line
*************** File: gccint.info,  Node: profopt Testin
*** 5960,6003 ****
  7.8 Support for testing profile-directed optimizations
  ======================================================
  
! The file `profopt.exp' provides language-independent support for
  checking correct execution of a test built with profile-directed
  optimization.  This testing requires that a test program be built and
! executed twice.  The first time it is compiled to generate profile
! data, and the second time it is compiled to use the data that was
! generated during the first execution.  The second execution is to
! verify that the test produces the expected results.
  
   To check that the optimization actually generated better code, a test
  can be built and run a third time with normal optimizations to verify
  that the performance is better with the profile-directed optimizations.
! `profopt.exp' has the beginnings of this kind of support.
  
!  `profopt.exp' provides generic support for profile-directed
  optimizations.  Each set of tests that uses it provides information
  about a specific optimization:
  
! `tool'
!      tool being tested, e.g., `gcc'
  
! `profile_option'
       options used to generate profile data
  
! `feedback_option'
       options used to optimize using that profile data
  
! `prof_ext'
       suffix of profile data files
  
! `PROFOPT_OPTIONS'
       list of options with which to run each test, similar to the lists
       for torture tests
  
! `{ dg-final-generate { LOCAL-DIRECTIVE } }'
!      This directive is similar to `dg-final', but the LOCAL-DIRECTIVE
!      is run after the generation of profile data.
  
! `{ dg-final-use { LOCAL-DIRECTIVE } }'
       The LOCAL-DIRECTIVE is run after the profile data have been used.
  
  
--- 5829,5872 ----
  7.8 Support for testing profile-directed optimizations
  ======================================================
  
! The file 'profopt.exp' provides language-independent support for
  checking correct execution of a test built with profile-directed
  optimization.  This testing requires that a test program be built and
! executed twice.  The first time it is compiled to generate profile data,
! and the second time it is compiled to use the data that was generated
! during the first execution.  The second execution is to verify that the
! test produces the expected results.
  
   To check that the optimization actually generated better code, a test
  can be built and run a third time with normal optimizations to verify
  that the performance is better with the profile-directed optimizations.
! 'profopt.exp' has the beginnings of this kind of support.
  
!  'profopt.exp' provides generic support for profile-directed
  optimizations.  Each set of tests that uses it provides information
  about a specific optimization:
  
! 'tool'
!      tool being tested, e.g., 'gcc'
  
! 'profile_option'
       options used to generate profile data
  
! 'feedback_option'
       options used to optimize using that profile data
  
! 'prof_ext'
       suffix of profile data files
  
! 'PROFOPT_OPTIONS'
       list of options with which to run each test, similar to the lists
       for torture tests
  
! '{ dg-final-generate { LOCAL-DIRECTIVE } }'
!      This directive is similar to 'dg-final', but the LOCAL-DIRECTIVE is
!      run after the generation of profile data.
  
! '{ dg-final-use { LOCAL-DIRECTIVE } }'
       The LOCAL-DIRECTIVE is run after the profile data have been used.
  
  
*************** File: gccint.info,  Node: compat Testing
*** 6006,6030 ****
  7.9 Support for testing binary compatibility
  ============================================
  
! The file `compat.exp' provides language-independent support for binary
  compatibility testing.  It supports testing interoperability of two
  compilers that follow the same ABI, or of multiple sets of compiler
  options that should not affect binary compatibility.  It is intended to
  be used for testsuites that complement ABI testsuites.
  
   A test supported by this framework has three parts, each in a separate
! source file: a main program and two pieces that interact with each
! other to split up the functionality being tested.
  
! `TESTNAME_main.SUFFIX'
       Contains the main program, which calls a function in file
!      `TESTNAME_x.SUFFIX'.
  
! `TESTNAME_x.SUFFIX'
!      Contains at least one call to a function in `TESTNAME_y.SUFFIX'.
  
! `TESTNAME_y.SUFFIX'
!      Shares data with, or gets arguments from, `TESTNAME_x.SUFFIX'.
  
   Within each test, the main program and one functional piece are
  compiled by the GCC under test.  The other piece can be compiled by an
--- 5875,5899 ----
  7.9 Support for testing binary compatibility
  ============================================
  
! The file 'compat.exp' provides language-independent support for binary
  compatibility testing.  It supports testing interoperability of two
  compilers that follow the same ABI, or of multiple sets of compiler
  options that should not affect binary compatibility.  It is intended to
  be used for testsuites that complement ABI testsuites.
  
   A test supported by this framework has three parts, each in a separate
! source file: a main program and two pieces that interact with each other
! to split up the functionality being tested.
  
! 'TESTNAME_main.SUFFIX'
       Contains the main program, which calls a function in file
!      'TESTNAME_x.SUFFIX'.
  
! 'TESTNAME_x.SUFFIX'
!      Contains at least one call to a function in 'TESTNAME_y.SUFFIX'.
  
! 'TESTNAME_y.SUFFIX'
!      Shares data with, or gets arguments from, 'TESTNAME_x.SUFFIX'.
  
   Within each test, the main program and one functional piece are
  compiled by the GCC under test.  The other piece can be compiled by an
*************** pair specifies options used with the GCC
*** 6035,6067 ****
  element of the pair specifies options used with the alternate compiler.
  Each test is compiled with each pair of options.
  
!  `compat.exp' defines default pairs of compiler options.  These can be
! overridden by defining the environment variable `COMPAT_OPTIONS' as:
  
       COMPAT_OPTIONS="[list [list {TST1} {ALT1}]
         ...[list {TSTN} {ALTN}]]"
  
   where TSTI and ALTI are lists of options, with TSTI used by the
  compiler under test and ALTI used by the alternate compiler.  For
! example, with `[list [list {-g -O0} {-O3}] [list {-fpic} {-fPIC -O2}]]',
! the test is first built with `-g -O0' by the compiler under test and
! with `-O3' by the alternate compiler.  The test is built a second time
! using `-fpic' by the compiler under test and `-fPIC -O2' by the
  alternate compiler.
  
   An alternate compiler is specified by defining an environment variable
  to be the full pathname of an installed compiler; for C define
! `ALT_CC_UNDER_TEST', and for C++ define `ALT_CXX_UNDER_TEST'.  These
! will be written to the `site.exp' file used by DejaGnu.  The default is
  to build each test with the compiler under test using the first of each
! pair of compiler options from `COMPAT_OPTIONS'.  When
! `ALT_CC_UNDER_TEST' or `ALT_CXX_UNDER_TEST' is `same', each test is
! built using the compiler under test but with combinations of the
! options from `COMPAT_OPTIONS'.
  
   To run only the C++ compatibility suite using the compiler under test
  and another version of GCC using specific compiler options, do the
! following from `OBJDIR/gcc':
  
       rm site.exp
       make -k \
--- 5904,5936 ----
  element of the pair specifies options used with the alternate compiler.
  Each test is compiled with each pair of options.
  
!  'compat.exp' defines default pairs of compiler options.  These can be
! overridden by defining the environment variable 'COMPAT_OPTIONS' as:
  
       COMPAT_OPTIONS="[list [list {TST1} {ALT1}]
         ...[list {TSTN} {ALTN}]]"
  
   where TSTI and ALTI are lists of options, with TSTI used by the
  compiler under test and ALTI used by the alternate compiler.  For
! example, with '[list [list {-g -O0} {-O3}] [list {-fpic} {-fPIC -O2}]]',
! the test is first built with '-g -O0' by the compiler under test and
! with '-O3' by the alternate compiler.  The test is built a second time
! using '-fpic' by the compiler under test and '-fPIC -O2' by the
  alternate compiler.
  
   An alternate compiler is specified by defining an environment variable
  to be the full pathname of an installed compiler; for C define
! 'ALT_CC_UNDER_TEST', and for C++ define 'ALT_CXX_UNDER_TEST'.  These
! will be written to the 'site.exp' file used by DejaGnu.  The default is
  to build each test with the compiler under test using the first of each
! pair of compiler options from 'COMPAT_OPTIONS'.  When
! 'ALT_CC_UNDER_TEST' or 'ALT_CXX_UNDER_TEST' is 'same', each test is
! built using the compiler under test but with combinations of the options
! from 'COMPAT_OPTIONS'.
  
   To run only the C++ compatibility suite using the compiler under test
  and another version of GCC using specific compiler options, do the
! following from 'OBJDIR/gcc':
  
       rm site.exp
       make -k \
*************** compiler under test but is present in th
*** 6080,6096 ****
   The binary compatibility tests support a small number of test framework
  commands that appear within comments in a test file.
  
! `dg-require-*'
!      These commands can be used in `TESTNAME_main.SUFFIX' to skip the
       test if specific support is not available on the target.
  
! `dg-options'
       The specified options are used for compiling this particular source
!      file, appended to the options from `COMPAT_OPTIONS'.  When this
!      command appears in `TESTNAME_main.SUFFIX' the options are also
!      used to link the test program.
  
! `dg-xfail-if'
       This command can be used in a secondary source file to specify that
       compilation is expected to fail for particular options on
       particular targets.
--- 5949,5965 ----
   The binary compatibility tests support a small number of test framework
  commands that appear within comments in a test file.
  
! 'dg-require-*'
!      These commands can be used in 'TESTNAME_main.SUFFIX' to skip the
       test if specific support is not available on the target.
  
! 'dg-options'
       The specified options are used for compiling this particular source
!      file, appended to the options from 'COMPAT_OPTIONS'.  When this
!      command appears in 'TESTNAME_main.SUFFIX' the options are also used
!      to link the test program.
  
! 'dg-xfail-if'
       This command can be used in a secondary source file to specify that
       compilation is expected to fail for particular options on
       particular targets.
*************** File: gccint.info,  Node: Torture Tests,
*** 6103,6140 ****
  
  Throughout the compiler testsuite there are several directories whose
  tests are run multiple times, each with a different set of options.
! These are known as torture tests.  `lib/torture-options.exp' defines
  procedures to set up these lists:
  
! `torture-init'
       Initialize use of torture lists.
! 
! `set-torture-options'
       Set lists of torture options to use for tests with and without
       loops.  Optionally combine a set of torture options with a set of
       other options, as is done with Objective-C runtime options.
! 
! `torture-finish'
       Finalize use of torture lists.
  
!  The `.exp' file for a set of tests that use torture options must
  include calls to these three procedures if:
  
!    * It calls `gcc-dg-runtest' and overrides DG_TORTURE_OPTIONS.
  
!    * It calls ${TOOL}`-torture' or ${TOOL}`-torture-execute', where
!      TOOL is `c', `fortran', or `objc'.
  
!    * It calls `dg-pch'.
  
!  It is not necessary for a `.exp' file that calls `gcc-dg-runtest' to
  call the torture procedures if the tests should use the list in
! DG_TORTURE_OPTIONS defined in `gcc-dg.exp'.
  
   Most uses of torture options can override the default lists by defining
  TORTURE_OPTIONS or add to the default list by defining
! ADDITIONAL_TORTURE_OPTIONS.  Define these in a `.dejagnurc' file or add
! them to the `site.exp' file; for example
  
       set ADDITIONAL_TORTURE_OPTIONS  [list \
         { -O2 -ftree-loop-linear } \
--- 5972,6007 ----
  
  Throughout the compiler testsuite there are several directories whose
  tests are run multiple times, each with a different set of options.
! These are known as torture tests.  'lib/torture-options.exp' defines
  procedures to set up these lists:
  
! 'torture-init'
       Initialize use of torture lists.
! 'set-torture-options'
       Set lists of torture options to use for tests with and without
       loops.  Optionally combine a set of torture options with a set of
       other options, as is done with Objective-C runtime options.
! 'torture-finish'
       Finalize use of torture lists.
  
!  The '.exp' file for a set of tests that use torture options must
  include calls to these three procedures if:
  
!    * It calls 'gcc-dg-runtest' and overrides DG_TORTURE_OPTIONS.
  
!    * It calls ${TOOL}'-torture' or ${TOOL}'-torture-execute', where TOOL
!      is 'c', 'fortran', or 'objc'.
  
!    * It calls 'dg-pch'.
  
!  It is not necessary for a '.exp' file that calls 'gcc-dg-runtest' to
  call the torture procedures if the tests should use the list in
! DG_TORTURE_OPTIONS defined in 'gcc-dg.exp'.
  
   Most uses of torture options can override the default lists by defining
  TORTURE_OPTIONS or add to the default list by defining
! ADDITIONAL_TORTURE_OPTIONS.  Define these in a '.dejagnurc' file or add
! them to the 'site.exp' file; for example
  
       set ADDITIONAL_TORTURE_OPTIONS  [list \
         { -O2 -ftree-loop-linear } \
*************** File: gccint.info,  Node: Options,  Next
*** 6146,6154 ****
  8 Option specification files
  ****************************
  
! Most GCC command-line options are described by special option
! definition files, the names of which conventionally end in `.opt'.
! This chapter describes the format of these files.
  
  * Menu:
  
--- 6013,6021 ----
  8 Option specification files
  ****************************
  
! Most GCC command-line options are described by special option definition
! files, the names of which conventionally end in '.opt'.  This chapter
! describes the format of these files.
  
  * Menu:
  
*************** semicolon.
*** 6170,6298 ****
   The files can contain the following types of record:
  
     * A language definition record.  These records have two fields: the
!      string `Language' and the name of the language.  Once a language
       has been declared in this way, it can be used as an option
       property.  *Note Option properties::.
  
!    * A target specific save record to save additional information. These
!      records have two fields: the string `TargetSave', and a
!      declaration type to go in the `cl_target_option' structure.
  
     * A variable record to define a variable used to store option
!      information.  These records have two fields: the string
!      `Variable', and a declaration of the type and name of the
!      variable, optionally with an initializer (but without any trailing
!      `;').  These records may be used for variables used for many
!      options where declaring the initializer in a single option
!      definition record, or duplicating it in many records, would be
!      inappropriate, or for variables set in option handlers rather than
!      referenced by `Var' properties.
  
     * A variable record to define a variable used to store option
       information.  These records have two fields: the string
!      `TargetVariable', and a declaration of the type and name of the
       variable, optionally with an initializer (but without any trailing
!      `;').  `TargetVariable' is a combination of `Variable' and
!      `TargetSave' records in that the variable is defined in the
!      `gcc_options' structure, but these variables are also stored in
!      the `cl_target_option' structure.  The variables are saved in the
       target save code and restored in the target restore code.
  
     * A variable record to record any additional files that the
!      `options.h' file should include.  This is useful to provide
       enumeration or structure definitions needed for target variables.
!      These records have two fields: the string `HeaderInclude' and the
       name of the include file.
  
     * A variable record to record any additional files that the
!      `options.c' or `options-save.c' file should include.  This is
       useful to provide inline functions needed for target variables
!      and/or `#ifdef' sequences to properly set up the initialization.
!      These records have two fields: the string `SourceInclude' and the
       name of the include file.
  
     * An enumeration record to define a set of strings that may be used
       as arguments to an option or options.  These records have three
!      fields: the string `Enum', a space-separated list of properties
!      and help text used to describe the set of strings in `--help'
!      output.  Properties use the same format as option properties; the
!      following are valid:
!     `Name(NAME)'
            This property is required; NAME must be a name (suitable for
            use in C identifiers) used to identify the set of strings in
!           `Enum' option properties.
  
!     `Type(TYPE)'
            This property is required; TYPE is the C type for variables
!           set by options using this enumeration together with `Var'.
  
!     `UnknownError(MESSAGE)'
            The message MESSAGE will be used as an error message if the
!           argument is invalid; for enumerations without `UnknownError',
            a generic error message is used.  MESSAGE should contain a
!           single `%qs' format, which will be used to format the invalid
            argument.
  
     * An enumeration value record to define one of the strings in a set
!      given in an `Enum' record.  These records have two fields: the
!      string `EnumValue' and a space-separated list of properties.
       Properties use the same format as option properties; the following
       are valid:
!     `Enum(NAME)'
!           This property is required; NAME says which `Enum' record this
!           `EnumValue' record corresponds to.
  
!     `String(STRING)'
            This property is required; STRING is the string option
            argument being described by this record.
  
!     `Value(VALUE)'
            This property is required; it says what value (representable
!           as `int') should be used for the given string.
  
!     `Canonical'
            This property is optional.  If present, it says the present
            string is the canonical one among all those with the given
            value.  Other strings yielding that value will be mapped to
            this one so specs do not need to handle them.
  
!     `DriverOnly'
            This property is optional.  If present, the present string
            will only be accepted by the driver.  This is used for cases
!           such as `-march=native' that are processed by the driver so
!           that `gcc -v' shows how the options chosen depended on the
            system on which the compiler was run.
  
     * An option definition record.  These records have the following
       fields:
         1. the name of the option, with the leading "-" removed
- 
         2. a space-separated list of option properties (*note Option
            properties::)
! 
!        3. the help text to use for `--help' (omitted if the second field
!           contains the `Undocumented' property).
  
       By default, all options beginning with "f", "W" or "m" are
       implicitly assumed to take a "no-" form.  This form should not be
       listed separately.  If an option beginning with one of these
       letters does not have a "no-" form, you can use the
!      `RejectNegative' property to reject it.
  
       The help text is automatically line-wrapped before being displayed.
       Normally the name of the option is printed on the left-hand side of
       the output and the help text is printed on the right.  However, if
!      the help text contains a tab character, the text to the left of
!      the tab is used instead of the option's name and the text to the
!      right of the tab forms the help text.  This allows you to
!      elaborate on what type of argument the option takes.
  
     * A target mask record.  These records have one field of the form
!      `Mask(X)'.  The options-processing script will automatically
!      allocate a bit in `target_flags' (*note Run-time Target::) for
!      each mask name X and set the macro `MASK_X' to the appropriate
!      bitmask.  It will also declare a `TARGET_X' macro that has the
!      value 1 when bit `MASK_X' is set and 0 otherwise.
  
       They are primarily intended to declare target masks that are not
       associated with user options, either because these masks represent
--- 6037,6162 ----
   The files can contain the following types of record:
  
     * A language definition record.  These records have two fields: the
!      string 'Language' and the name of the language.  Once a language
       has been declared in this way, it can be used as an option
       property.  *Note Option properties::.
  
!    * A target specific save record to save additional information.
!      These records have two fields: the string 'TargetSave', and a
!      declaration type to go in the 'cl_target_option' structure.
  
     * A variable record to define a variable used to store option
!      information.  These records have two fields: the string 'Variable',
!      and a declaration of the type and name of the variable, optionally
!      with an initializer (but without any trailing ';').  These records
!      may be used for variables used for many options where declaring the
!      initializer in a single option definition record, or duplicating it
!      in many records, would be inappropriate, or for variables set in
!      option handlers rather than referenced by 'Var' properties.
  
     * A variable record to define a variable used to store option
       information.  These records have two fields: the string
!      'TargetVariable', and a declaration of the type and name of the
       variable, optionally with an initializer (but without any trailing
!      ';').  'TargetVariable' is a combination of 'Variable' and
!      'TargetSave' records in that the variable is defined in the
!      'gcc_options' structure, but these variables are also stored in the
!      'cl_target_option' structure.  The variables are saved in the
       target save code and restored in the target restore code.
  
     * A variable record to record any additional files that the
!      'options.h' file should include.  This is useful to provide
       enumeration or structure definitions needed for target variables.
!      These records have two fields: the string 'HeaderInclude' and the
       name of the include file.
  
     * A variable record to record any additional files that the
!      'options.c' or 'options-save.c' file should include.  This is
       useful to provide inline functions needed for target variables
!      and/or '#ifdef' sequences to properly set up the initialization.
!      These records have two fields: the string 'SourceInclude' and the
       name of the include file.
  
     * An enumeration record to define a set of strings that may be used
       as arguments to an option or options.  These records have three
!      fields: the string 'Enum', a space-separated list of properties and
!      help text used to describe the set of strings in '--help' output.
!      Properties use the same format as option properties; the following
!      are valid:
!      'Name(NAME)'
            This property is required; NAME must be a name (suitable for
            use in C identifiers) used to identify the set of strings in
!           'Enum' option properties.
  
!      'Type(TYPE)'
            This property is required; TYPE is the C type for variables
!           set by options using this enumeration together with 'Var'.
  
!      'UnknownError(MESSAGE)'
            The message MESSAGE will be used as an error message if the
!           argument is invalid; for enumerations without 'UnknownError',
            a generic error message is used.  MESSAGE should contain a
!           single '%qs' format, which will be used to format the invalid
            argument.
  
     * An enumeration value record to define one of the strings in a set
!      given in an 'Enum' record.  These records have two fields: the
!      string 'EnumValue' and a space-separated list of properties.
       Properties use the same format as option properties; the following
       are valid:
!      'Enum(NAME)'
!           This property is required; NAME says which 'Enum' record this
!           'EnumValue' record corresponds to.
  
!      'String(STRING)'
            This property is required; STRING is the string option
            argument being described by this record.
  
!      'Value(VALUE)'
            This property is required; it says what value (representable
!           as 'int') should be used for the given string.
  
!      'Canonical'
            This property is optional.  If present, it says the present
            string is the canonical one among all those with the given
            value.  Other strings yielding that value will be mapped to
            this one so specs do not need to handle them.
  
!      'DriverOnly'
            This property is optional.  If present, the present string
            will only be accepted by the driver.  This is used for cases
!           such as '-march=native' that are processed by the driver so
!           that 'gcc -v' shows how the options chosen depended on the
            system on which the compiler was run.
  
     * An option definition record.  These records have the following
       fields:
         1. the name of the option, with the leading "-" removed
         2. a space-separated list of option properties (*note Option
            properties::)
!        3. the help text to use for '--help' (omitted if the second field
!           contains the 'Undocumented' property).
  
       By default, all options beginning with "f", "W" or "m" are
       implicitly assumed to take a "no-" form.  This form should not be
       listed separately.  If an option beginning with one of these
       letters does not have a "no-" form, you can use the
!      'RejectNegative' property to reject it.
  
       The help text is automatically line-wrapped before being displayed.
       Normally the name of the option is printed on the left-hand side of
       the output and the help text is printed on the right.  However, if
!      the help text contains a tab character, the text to the left of the
!      tab is used instead of the option's name and the text to the right
!      of the tab forms the help text.  This allows you to elaborate on
!      what type of argument the option takes.
  
     * A target mask record.  These records have one field of the form
!      'Mask(X)'.  The options-processing script will automatically
!      allocate a bit in 'target_flags' (*note Run-time Target::) for each
!      mask name X and set the macro 'MASK_X' to the appropriate bitmask.
!      It will also declare a 'TARGET_X' macro that has the value 1 when
!      bit 'MASK_X' is set and 0 otherwise.
  
       They are primarily intended to declare target masks that are not
       associated with user options, either because these masks represent
*************** File: gccint.info,  Node: Option propert
*** 6307,6616 ****
  
  The second field of an option record can specify any of the following
  properties.  When an option takes an argument, it is enclosed in
! parentheses following the option property name.  The parser that
! handles option files is quite simplistic, and will be tricked by any
! nested parentheses within the argument text itself; in this case, the
! entire option argument can be wrapped in curly braces within the
! parentheses to demarcate it, e.g.:
  
       Condition({defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)})
  
! `Common'
       The option is available for all languages and targets.
  
! `Target'
       The option is available for all languages but is target-specific.
  
! `Driver'
       The option is handled by the compiler driver using code not shared
!      with the compilers proper (`cc1' etc.).
  
! `LANGUAGE'
       The option is available when compiling for the given language.
  
       It is possible to specify several different languages for the same
       option.  Each LANGUAGE must have been declared by an earlier
!      `Language' record.  *Note Option file format::.
  
! `RejectDriver'
!      The option is only handled by the compilers proper (`cc1' etc.)
!      and should not be accepted by the driver.
  
! `RejectNegative'
       The option does not have a "no-" form.  All options beginning with
       "f", "W" or "m" are assumed to have a "no-" form unless this
       property is used.
  
! `Negative(OTHERNAME)'
       The option will turn off another option OTHERNAME, which is the
       option name with the leading "-" removed.  This chain action will
!      propagate through the `Negative' property of the option to be
       turned off.
  
       As a consequence, if you have a group of mutually-exclusive
!      options, their `Negative' properties should form a circular chain.
!      For example, if options `-A', `-B' and `-C' are mutually
!      exclusive, their respective `Negative' properties should be
!      `Negative(B)', `Negative(C)' and `Negative(A)'.
  
! `Joined'
! `Separate'
!      The option takes a mandatory argument.  `Joined' indicates that
!      the option and argument can be included in the same `argv' entry
!      (as with `-mflush-func=NAME', for example).  `Separate' indicates
!      that the option and argument can be separate `argv' entries (as
!      with `-o').  An option is allowed to have both of these properties.
  
! `JoinedOrMissing'
       The option takes an optional argument.  If the argument is given,
!      it will be part of the same `argv' entry as the option itself.
  
!      This property cannot be used alongside `Joined' or `Separate'.
  
! `MissingArgError(MESSAGE)'
!      For an option marked `Joined' or `Separate', the message MESSAGE
       will be used as an error message if the mandatory argument is
!      missing; for options without `MissingArgError', a generic error
!      message is used.  MESSAGE should contain a single `%qs' format,
       which will be used to format the name of the option passed.
  
! `Args(N)'
!      For an option marked `Separate', indicate that it takes N
       arguments.  The default is 1.
  
! `UInteger'
       The option's argument is a non-negative integer.  The option parser
       will check and convert the argument before passing it to the
!      relevant option handler.  `UInteger' should also be used on
!      options like `-falign-loops' where both `-falign-loops' and
!      `-falign-loops'=N are supported to make sure the saved options are
       given a full integer.
  
! `ToLower'
       The option's argument should be converted to lowercase as part of
       putting it in canonical form, and before comparing with the strings
!      indicated by any `Enum' property.
  
! `NoDriverArg'
!      For an option marked `Separate', the option only takes an argument
       in the compiler proper, not in the driver.  This is for
       compatibility with existing options that are used both directly and
!      via `-Wp,'; new options should not have this property.
  
! `Var(VAR)'
!      The state of this option should be stored in variable VAR
!      (actually a macro for `global_options.x_VAR').  The way that the
!      state is stored depends on the type of option:
  
!         * If the option uses the `Mask' or `InverseMask' properties,
!           VAR is the integer variable that contains the mask.
  
          * If the option is a normal on/off switch, VAR is an integer
            variable that is nonzero when the option is enabled.  The
            options parser will set the variable to 1 when the positive
            form of the option is used and 0 when the "no-" form is used.
  
!         * If the option takes an argument and has the `UInteger'
            property, VAR is an integer variable that stores the value of
            the argument.
  
!         * If the option takes an argument and has the `Enum' property,
!           VAR is a variable (type given in the `Type' property of the
!           `Enum' record whose `Name' property has the same argument as
!           the `Enum' property of this option) that stores the value of
            the argument.
  
!         * If the option has the `Defer' property, VAR is a pointer to a
!           `VEC(cl_deferred_option,heap)' that stores the option for
!           later processing.  (VAR is declared with type `void *' and
!           needs to be cast to `VEC(cl_deferred_option,heap)' before
            use.)
  
          * Otherwise, if the option takes an argument, VAR is a pointer
            to the argument string.  The pointer will be null if the
            argument is optional and wasn't given.
  
!      The option-processing script will usually zero-initialize VAR.
!      You can modify this behavior using `Init'.
  
! `Var(VAR, SET)'
       The option controls an integer variable VAR and is active when VAR
       equals SET.  The option parser will set VAR to SET when the
!      positive form of the option is used and `!SET' when the "no-" form
       is used.
  
       VAR is declared in the same way as for the single-argument form
       described above.
  
! `Init(VALUE)'
!      The variable specified by the `Var' property should be statically
       initialized to VALUE.  If more than one option using the same
!      variable specifies `Init', all must specify the same initializer.
  
! `Mask(NAME)'
!      The option is associated with a bit in the `target_flags' variable
       (*note Run-time Target::) and is active when that bit is set.  You
!      may also specify `Var' to select a variable other than
!      `target_flags'.
  
       The options-processing script will automatically allocate a unique
!      bit for the option.  If the option is attached to `target_flags',
!      the script will set the macro `MASK_NAME' to the appropriate
!      bitmask.  It will also declare a `TARGET_NAME' macro that has the
       value 1 when the option is active and 0 otherwise.  If you use
!      `Var' to attach the option to a different variable, the bitmask
!      macro with be called `OPTION_MASK_NAME'.
  
! `InverseMask(OTHERNAME)'
! `InverseMask(OTHERNAME, THISNAME)'
       The option is the inverse of another option that has the
!      `Mask(OTHERNAME)' property.  If THISNAME is given, the
!      options-processing script will declare a `TARGET_THISNAME' macro
       that is 1 when the option is active and 0 otherwise.
  
! `Enum(NAME)'
       The option's argument is a string from the set of strings
!      associated with the corresponding `Enum' record.  The string is
       checked and converted to the integer specified in the corresponding
!      `EnumValue' record before being passed to option handlers.
  
! `Defer'
!      The option should be stored in a vector, specified with `Var', for
       later processing.
  
! `Alias(OPT)'
! `Alias(OPT, ARG)'
! `Alias(OPT, POSARG, NEGARG)'
!      The option is an alias for `-OPT' (or the negative form of that
!      option, depending on `NegativeAlias').  In the first form, any
!      argument passed to the alias is considered to be passed to `-OPT',
!      and `-OPT' is considered to be negated if the alias is used in
       negated form.  In the second form, the alias may not be negated or
       have an argument, and POSARG is considered to be passed as an
!      argument to `-OPT'.  In the third form, the alias may not have an
       argument, if the alias is used in the positive form then POSARG is
!      considered to be passed to `-OPT', and if the alias is used in the
!      negative form then NEGARG is considered to be passed to `-OPT'.
  
!      Aliases should not specify `Var' or `Mask' or `UInteger'.  Aliases
       should normally specify the same languages as the target of the
       alias; the flags on the target will be used to determine any
!      diagnostic for use of an option for the wrong language, while
!      those on the alias will be used to identify what command-line text
!      is the option and what text is any argument to that option.
  
!      When an `Alias' definition is used for an option, driver specs do
!      not need to handle it and no `OPT_' enumeration value is defined
       for it; only the canonical form of the option will be seen in those
       places.
  
! `NegativeAlias'
!      For an option marked with `Alias(OPT)', the option is considered
!      to be an alias for the positive form of `-OPT' if negated and for
!      the negative form of `-OPT' if not negated.  `NegativeAlias' may
!      not be used with the forms of `Alias' taking more than one
!      argument.
  
! `Ignore'
       This option is ignored apart from printing any warning specified
!      using `Warn'.  The option will not be seen by specs and no `OPT_'
       enumeration value is defined for it.
  
! `SeparateAlias'
!      For an option marked with `Joined', `Separate' and `Alias', the
       option only acts as an alias when passed a separate argument; with
!      a joined argument it acts as a normal option, with an `OPT_'
!      enumeration value.  This is for compatibility with the Java `-d'
       option and should not be used for new options.
  
! `Warn(MESSAGE)'
       If this option is used, output the warning MESSAGE.  MESSAGE is a
!      format string, either taking a single operand with a `%qs' format
       which is the option name, or not taking any operands, which is
!      passed to the `warning' function.  If an alias is marked `Warn',
!      the target of the alias must not also be marked `Warn'.
  
! `Report'
!      The state of the option should be printed by `-fverbose-asm'.
  
! `Warning'
!      This is a warning option and should be shown as such in `--help'
       output.  This flag does not currently affect anything other than
!      `--help'.
  
! `Optimization'
       This is an optimization option.  It should be shown as such in
!      `--help' output, and any associated variable named using `Var'
!      should be saved and restored when the optimization level is
!      changed with `optimize' attributes.
  
! `Undocumented'
       The option is deliberately missing documentation and should not be
!      included in the `--help' output.
  
! `Condition(COND)'
       The option should only be accepted if preprocessor condition COND
       is true.  Note that any C declarations associated with the option
!      will be present even if COND is false; COND simply controls
!      whether the option is accepted and whether it is printed in the
!      `--help' output.
  
! `Save'
!      Build the `cl_target_option' structure to hold a copy of the
!      option, add the functions `cl_target_option_save' and
!      `cl_target_option_restore' to save and restore the options.
  
! `SetByCombined'
       The option may also be set by a combined option such as
!      `-ffast-math'.  This causes the `gcc_options' struct to have a
!      field `frontend_set_NAME', where `NAME' is the name of the field
!      holding the value of this option (without the leading `x_').  This
       gives the front end a way to indicate that the value has been set
       explicitly and should not be changed by the combined option.  For
!      example, some front ends use this to prevent `-ffast-math' and
!      `-fno-fast-math' from changing the value of `-fmath-errno' for
!      languages that do not use `errno'.
  
! `EnabledBy(OPT)'
! `EnabledBy(OPT || OPT2)'
! `EnabledBy(OPT && OPT2)'
!      If not explicitly set, the option is set to the value of `-OPT';
!      multiple options can be given, separated by `||'.  The third form
!      using `&&' specifies that the option is only set if both OPT and
!      OPT2 are set. The options OPT and OPT2 must have the `Common'
!      property; otherwise, use `LangEnabledBy'.
  
! `LangEnabledBy(LANGUAGE, OPT)'
! `LangEnabledBy(LANGUAGE, OPT, POSARG, NEGARG)'
       When compiling for the given language, the option is set to the
!      value of `-OPT', if not explicitly set. OPT can be also a list of
!      `||' separated options. In the second form, if OPT is used in the
!      positive form then POSARG is considered to be passed to the
!      option, and if OPT is used in the negative form then NEGARG is
!      considered to be passed to the option.  It is possible to specify
!      several different languages.  Each LANGUAGE must have been
!      declared by an earlier `Language' record.  *Note Option file
!      format::.
  
! `NoDWARFRecord'
       The option is omitted from the producer string written by
!      `-grecord-gcc-switches'.
  
! `PchIgnore'
!      Even if this is a target option, this option will not be recorded
!      / compared to determine if a precompiled header file matches.
  
! `CPP(VAR)'
       The state of this option should be kept in sync with the
       preprocessor option VAR.  If this property is set, then properties
!      `Var' and `Init' must be set as well.
  
! `CppReason(CPP_W_ENUM)'
!      This warning option corresponds to `cpplib.h' warning reason code
       CPP_W_ENUM.  This should only be used for warning options of the
       C-family front-ends.
  
- 
  
  File: gccint.info,  Node: Passes,  Next: GENERIC,  Prev: Options,  Up: Top
  
--- 6171,6477 ----
  
  The second field of an option record can specify any of the following
  properties.  When an option takes an argument, it is enclosed in
! parentheses following the option property name.  The parser that handles
! option files is quite simplistic, and will be tricked by any nested
! parentheses within the argument text itself; in this case, the entire
! option argument can be wrapped in curly braces within the parentheses to
! demarcate it, e.g.:
  
       Condition({defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)})
  
! 'Common'
       The option is available for all languages and targets.
  
! 'Target'
       The option is available for all languages but is target-specific.
  
! 'Driver'
       The option is handled by the compiler driver using code not shared
!      with the compilers proper ('cc1' etc.).
  
! 'LANGUAGE'
       The option is available when compiling for the given language.
  
       It is possible to specify several different languages for the same
       option.  Each LANGUAGE must have been declared by an earlier
!      'Language' record.  *Note Option file format::.
  
! 'RejectDriver'
!      The option is only handled by the compilers proper ('cc1' etc.) and
!      should not be accepted by the driver.
  
! 'RejectNegative'
       The option does not have a "no-" form.  All options beginning with
       "f", "W" or "m" are assumed to have a "no-" form unless this
       property is used.
  
! 'Negative(OTHERNAME)'
       The option will turn off another option OTHERNAME, which is the
       option name with the leading "-" removed.  This chain action will
!      propagate through the 'Negative' property of the option to be
       turned off.
  
       As a consequence, if you have a group of mutually-exclusive
!      options, their 'Negative' properties should form a circular chain.
!      For example, if options '-A', '-B' and '-C' are mutually exclusive,
!      their respective 'Negative' properties should be 'Negative(B)',
!      'Negative(C)' and 'Negative(A)'.
  
! 'Joined'
! 'Separate'
!      The option takes a mandatory argument.  'Joined' indicates that the
!      option and argument can be included in the same 'argv' entry (as
!      with '-mflush-func=NAME', for example).  'Separate' indicates that
!      the option and argument can be separate 'argv' entries (as with
!      '-o').  An option is allowed to have both of these properties.
  
! 'JoinedOrMissing'
       The option takes an optional argument.  If the argument is given,
!      it will be part of the same 'argv' entry as the option itself.
  
!      This property cannot be used alongside 'Joined' or 'Separate'.
  
! 'MissingArgError(MESSAGE)'
!      For an option marked 'Joined' or 'Separate', the message MESSAGE
       will be used as an error message if the mandatory argument is
!      missing; for options without 'MissingArgError', a generic error
!      message is used.  MESSAGE should contain a single '%qs' format,
       which will be used to format the name of the option passed.
  
! 'Args(N)'
!      For an option marked 'Separate', indicate that it takes N
       arguments.  The default is 1.
  
! 'UInteger'
       The option's argument is a non-negative integer.  The option parser
       will check and convert the argument before passing it to the
!      relevant option handler.  'UInteger' should also be used on options
!      like '-falign-loops' where both '-falign-loops' and
!      '-falign-loops'=N are supported to make sure the saved options are
       given a full integer.
  
! 'ToLower'
       The option's argument should be converted to lowercase as part of
       putting it in canonical form, and before comparing with the strings
!      indicated by any 'Enum' property.
  
! 'NoDriverArg'
!      For an option marked 'Separate', the option only takes an argument
       in the compiler proper, not in the driver.  This is for
       compatibility with existing options that are used both directly and
!      via '-Wp,'; new options should not have this property.
  
! 'Var(VAR)'
!      The state of this option should be stored in variable VAR (actually
!      a macro for 'global_options.x_VAR').  The way that the state is
!      stored depends on the type of option:
  
!         * If the option uses the 'Mask' or 'InverseMask' properties, VAR
!           is the integer variable that contains the mask.
  
          * If the option is a normal on/off switch, VAR is an integer
            variable that is nonzero when the option is enabled.  The
            options parser will set the variable to 1 when the positive
            form of the option is used and 0 when the "no-" form is used.
  
!         * If the option takes an argument and has the 'UInteger'
            property, VAR is an integer variable that stores the value of
            the argument.
  
!         * If the option takes an argument and has the 'Enum' property,
!           VAR is a variable (type given in the 'Type' property of the
!           'Enum' record whose 'Name' property has the same argument as
!           the 'Enum' property of this option) that stores the value of
            the argument.
  
!         * If the option has the 'Defer' property, VAR is a pointer to a
!           'VEC(cl_deferred_option,heap)' that stores the option for
!           later processing.  (VAR is declared with type 'void *' and
!           needs to be cast to 'VEC(cl_deferred_option,heap)' before
            use.)
  
          * Otherwise, if the option takes an argument, VAR is a pointer
            to the argument string.  The pointer will be null if the
            argument is optional and wasn't given.
  
!      The option-processing script will usually zero-initialize VAR.  You
!      can modify this behavior using 'Init'.
  
! 'Var(VAR, SET)'
       The option controls an integer variable VAR and is active when VAR
       equals SET.  The option parser will set VAR to SET when the
!      positive form of the option is used and '!SET' when the "no-" form
       is used.
  
       VAR is declared in the same way as for the single-argument form
       described above.
  
! 'Init(VALUE)'
!      The variable specified by the 'Var' property should be statically
       initialized to VALUE.  If more than one option using the same
!      variable specifies 'Init', all must specify the same initializer.
  
! 'Mask(NAME)'
!      The option is associated with a bit in the 'target_flags' variable
       (*note Run-time Target::) and is active when that bit is set.  You
!      may also specify 'Var' to select a variable other than
!      'target_flags'.
  
       The options-processing script will automatically allocate a unique
!      bit for the option.  If the option is attached to 'target_flags',
!      the script will set the macro 'MASK_NAME' to the appropriate
!      bitmask.  It will also declare a 'TARGET_NAME' macro that has the
       value 1 when the option is active and 0 otherwise.  If you use
!      'Var' to attach the option to a different variable, the bitmask
!      macro with be called 'OPTION_MASK_NAME'.
  
! 'InverseMask(OTHERNAME)'
! 'InverseMask(OTHERNAME, THISNAME)'
       The option is the inverse of another option that has the
!      'Mask(OTHERNAME)' property.  If THISNAME is given, the
!      options-processing script will declare a 'TARGET_THISNAME' macro
       that is 1 when the option is active and 0 otherwise.
  
! 'Enum(NAME)'
       The option's argument is a string from the set of strings
!      associated with the corresponding 'Enum' record.  The string is
       checked and converted to the integer specified in the corresponding
!      'EnumValue' record before being passed to option handlers.
  
! 'Defer'
!      The option should be stored in a vector, specified with 'Var', for
       later processing.
  
! 'Alias(OPT)'
! 'Alias(OPT, ARG)'
! 'Alias(OPT, POSARG, NEGARG)'
!      The option is an alias for '-OPT' (or the negative form of that
!      option, depending on 'NegativeAlias').  In the first form, any
!      argument passed to the alias is considered to be passed to '-OPT',
!      and '-OPT' is considered to be negated if the alias is used in
       negated form.  In the second form, the alias may not be negated or
       have an argument, and POSARG is considered to be passed as an
!      argument to '-OPT'.  In the third form, the alias may not have an
       argument, if the alias is used in the positive form then POSARG is
!      considered to be passed to '-OPT', and if the alias is used in the
!      negative form then NEGARG is considered to be passed to '-OPT'.
  
!      Aliases should not specify 'Var' or 'Mask' or 'UInteger'.  Aliases
       should normally specify the same languages as the target of the
       alias; the flags on the target will be used to determine any
!      diagnostic for use of an option for the wrong language, while those
!      on the alias will be used to identify what command-line text is the
!      option and what text is any argument to that option.
  
!      When an 'Alias' definition is used for an option, driver specs do
!      not need to handle it and no 'OPT_' enumeration value is defined
       for it; only the canonical form of the option will be seen in those
       places.
  
! 'NegativeAlias'
!      For an option marked with 'Alias(OPT)', the option is considered to
!      be an alias for the positive form of '-OPT' if negated and for the
!      negative form of '-OPT' if not negated.  'NegativeAlias' may not be
!      used with the forms of 'Alias' taking more than one argument.
  
! 'Ignore'
       This option is ignored apart from printing any warning specified
!      using 'Warn'.  The option will not be seen by specs and no 'OPT_'
       enumeration value is defined for it.
  
! 'SeparateAlias'
!      For an option marked with 'Joined', 'Separate' and 'Alias', the
       option only acts as an alias when passed a separate argument; with
!      a joined argument it acts as a normal option, with an 'OPT_'
!      enumeration value.  This is for compatibility with the Java '-d'
       option and should not be used for new options.
  
! 'Warn(MESSAGE)'
       If this option is used, output the warning MESSAGE.  MESSAGE is a
!      format string, either taking a single operand with a '%qs' format
       which is the option name, or not taking any operands, which is
!      passed to the 'warning' function.  If an alias is marked 'Warn',
!      the target of the alias must not also be marked 'Warn'.
  
! 'Report'
!      The state of the option should be printed by '-fverbose-asm'.
  
! 'Warning'
!      This is a warning option and should be shown as such in '--help'
       output.  This flag does not currently affect anything other than
!      '--help'.
  
! 'Optimization'
       This is an optimization option.  It should be shown as such in
!      '--help' output, and any associated variable named using 'Var'
!      should be saved and restored when the optimization level is changed
!      with 'optimize' attributes.
  
! 'Undocumented'
       The option is deliberately missing documentation and should not be
!      included in the '--help' output.
  
! 'Condition(COND)'
       The option should only be accepted if preprocessor condition COND
       is true.  Note that any C declarations associated with the option
!      will be present even if COND is false; COND simply controls whether
!      the option is accepted and whether it is printed in the '--help'
!      output.
  
! 'Save'
!      Build the 'cl_target_option' structure to hold a copy of the
!      option, add the functions 'cl_target_option_save' and
!      'cl_target_option_restore' to save and restore the options.
  
! 'SetByCombined'
       The option may also be set by a combined option such as
!      '-ffast-math'.  This causes the 'gcc_options' struct to have a
!      field 'frontend_set_NAME', where 'NAME' is the name of the field
!      holding the value of this option (without the leading 'x_').  This
       gives the front end a way to indicate that the value has been set
       explicitly and should not be changed by the combined option.  For
!      example, some front ends use this to prevent '-ffast-math' and
!      '-fno-fast-math' from changing the value of '-fmath-errno' for
!      languages that do not use 'errno'.
  
! 'EnabledBy(OPT)'
! 'EnabledBy(OPT || OPT2)'
! 'EnabledBy(OPT && OPT2)'
!      If not explicitly set, the option is set to the value of '-OPT';
!      multiple options can be given, separated by '||'.  The third form
!      using '&&' specifies that the option is only set if both OPT and
!      OPT2 are set.  The options OPT and OPT2 must have the 'Common'
!      property; otherwise, use 'LangEnabledBy'.
  
! 'LangEnabledBy(LANGUAGE, OPT)'
! 'LangEnabledBy(LANGUAGE, OPT, POSARG, NEGARG)'
       When compiling for the given language, the option is set to the
!      value of '-OPT', if not explicitly set.  OPT can be also a list of
!      '||' separated options.  In the second form, if OPT is used in the
!      positive form then POSARG is considered to be passed to the option,
!      and if OPT is used in the negative form then NEGARG is considered
!      to be passed to the option.  It is possible to specify several
!      different languages.  Each LANGUAGE must have been declared by an
!      earlier 'Language' record.  *Note Option file format::.
  
! 'NoDWARFRecord'
       The option is omitted from the producer string written by
!      '-grecord-gcc-switches'.
  
! 'PchIgnore'
!      Even if this is a target option, this option will not be recorded /
!      compared to determine if a precompiled header file matches.
  
! 'CPP(VAR)'
       The state of this option should be kept in sync with the
       preprocessor option VAR.  If this property is set, then properties
!      'Var' and 'Init' must be set as well.
  
! 'CppReason(CPP_W_ENUM)'
!      This warning option corresponds to 'cpplib.h' warning reason code
       CPP_W_ENUM.  This should only be used for warning options of the
       C-family front-ends.
  
  
  File: gccint.info,  Node: Passes,  Next: GENERIC,  Prev: Options,  Up: Top
  
*************** File: gccint.info,  Node: Parsing pass,
*** 6639,6677 ****
  ================
  
  The language front end is invoked only once, via
! `lang_hooks.parse_file', to parse the entire input.  The language front
! end may use any intermediate language representation deemed
! appropriate.  The C front end uses GENERIC trees (*note GENERIC::), plus
! a double handful of language specific tree codes defined in
! `c-common.def'.  The Fortran front end uses a completely different
! private representation.
  
   At some point the front end must translate the representation used in
  the front end to a representation understood by the language-independent
! portions of the compiler.  Current practice takes one of two forms.
! The C front end manually invokes the gimplifier (*note GIMPLE::) on
! each function, and uses the gimplifier callbacks to convert the
  language-specific tree nodes directly to GIMPLE before passing the
  function off to be compiled.  The Fortran front end converts from a
! private representation to GENERIC, which is later lowered to GIMPLE
! when the function is compiled.  Which route to choose probably depends
! on how well GENERIC (plus extensions) can be made to match up with the
! source language and necessary parsing data structures.
  
   BUG: Gimplification must occur before nested function lowering, and
  nested function lowering must be done by the front end before passing
  the data off to cgraph.
  
!  TODO: Cgraph should control nested function lowering.  It would only
! be invoked when it is certain that the outer-most function is used.
  
   TODO: Cgraph needs a gimplify_function callback.  It should be invoked
  when (1) it is certain that the function is used, (2) warning flags
  specified by the user require some amount of compilation in order to
! honor, (3) the language indicates that semantic analysis is not
! complete until gimplification occurs.  Hum... this sounds overly
! complicated.  Perhaps we should just have the front end gimplify
! always; in most cases it's only one function call.
  
   The front end needs to pass all function definitions and top level
  declarations off to the middle-end so that they can be compiled and
--- 6500,6537 ----
  ================
  
  The language front end is invoked only once, via
! 'lang_hooks.parse_file', to parse the entire input.  The language front
! end may use any intermediate language representation deemed appropriate.
! The C front end uses GENERIC trees (*note GENERIC::), plus a double
! handful of language specific tree codes defined in 'c-common.def'.  The
! Fortran front end uses a completely different private representation.
  
   At some point the front end must translate the representation used in
  the front end to a representation understood by the language-independent
! portions of the compiler.  Current practice takes one of two forms.  The
! C front end manually invokes the gimplifier (*note GIMPLE::) on each
! function, and uses the gimplifier callbacks to convert the
  language-specific tree nodes directly to GIMPLE before passing the
  function off to be compiled.  The Fortran front end converts from a
! private representation to GENERIC, which is later lowered to GIMPLE when
! the function is compiled.  Which route to choose probably depends on how
! well GENERIC (plus extensions) can be made to match up with the source
! language and necessary parsing data structures.
  
   BUG: Gimplification must occur before nested function lowering, and
  nested function lowering must be done by the front end before passing
  the data off to cgraph.
  
!  TODO: Cgraph should control nested function lowering.  It would only be
! invoked when it is certain that the outer-most function is used.
  
   TODO: Cgraph needs a gimplify_function callback.  It should be invoked
  when (1) it is certain that the function is used, (2) warning flags
  specified by the user require some amount of compilation in order to
! honor, (3) the language indicates that semantic analysis is not complete
! until gimplification occurs.  Hum... this sounds overly complicated.
! Perhaps we should just have the front end gimplify always; in most cases
! it's only one function call.
  
   The front end needs to pass all function definitions and top level
  declarations off to the middle-end so that they can be compiled and
*************** all be passed as well.
*** 6686,6702 ****
  
   In any case, the front end needs each complete top-level function or
  data declaration, and each data definition should be passed to
! `rest_of_decl_compilation'.  Each complete type definition should be
! passed to `rest_of_type_compilation'.  Each function definition should
! be passed to `cgraph_finalize_function'.
  
   TODO: I know rest_of_compilation currently has all sorts of RTL
  generation semantics.  I plan to move all code generation bits (both
! Tree and RTL) to compile_function.  Should we hide cgraph from the
! front ends and move back to rest_of_compilation as the official
! interface?  Possibly we should rename all three interfaces such that
! the names match in some meaningful way and that is more descriptive
! than "rest_of".
  
   The middle-end will, at its option, emit the function and data
  definitions immediately or queue them for later processing.
--- 6546,6561 ----
  
   In any case, the front end needs each complete top-level function or
  data declaration, and each data definition should be passed to
! 'rest_of_decl_compilation'.  Each complete type definition should be
! passed to 'rest_of_type_compilation'.  Each function definition should
! be passed to 'cgraph_finalize_function'.
  
   TODO: I know rest_of_compilation currently has all sorts of RTL
  generation semantics.  I plan to move all code generation bits (both
! Tree and RTL) to compile_function.  Should we hide cgraph from the front
! ends and move back to rest_of_compilation as the official interface?
! Possibly we should rename all three interfaces such that the names match
! in some meaningful way and that is more descriptive than "rest_of".
  
   The middle-end will, at its option, emit the function and data
  definitions immediately or queue them for later processing.
*************** File: gccint.info,  Node: Cilk Plus Tran
*** 6707,6766 ****
  9.2 Cilk Plus Transformation
  ============================
  
! If Cilk Plus generation (flag `-fcilkplus') is enabled, all the Cilk
  Plus code is transformed into equivalent C and C++ functions.  Majority
  of this transformation occurs toward the end of the parsing and right
  before the gimplification pass.
  
   These are the major components to the Cilk Plus language extension:
     * Array Notations: During parsing phase, all the array notation
!      specific information is stored in `ARRAY_NOTATION_REF' tree using
!      the function `c_parser_array_notation'.  During the end of
!      parsing, we check the entire function to see if there are any
!      array notation specific code (using the function
!      `contains_array_notation_expr').  If this function returns true,
!      then we expand them using either `expand_array_notation_exprs' or
!      `build_array_notation_expr'.  For the cases where array notations
!      are inside conditions, they are transformed using the function
!      `fix_conditional_array_notations'.  The C language-specific
!      routines are located in `c/c-array-notation.c' and the equivalent
!      C++ routines are in the file `cp/cp-array-notation.c'.  Common
!      routines such as functions to initialize built-in functions are
!      stored in `array-notation-common.c'.
  
     * Cilk keywords:
!         * `_Cilk_spawn': The `_Cilk_spawn' keyword is parsed and the
            function it contains is marked as a spawning function.  The
            spawning function is called the spawner.  At the end of the
!           parsing phase, appropriate built-in functions are added to
!           the spawner that are defined in the Cilk runtime.  The
!           appropriate locations of these functions, and the internal
!           structures are detailed in `cilk_init_builtins' in the file
!           `cilk-common.c'.  The pointers to Cilk functions and fields
!           of internal structures are described in `cilk.h'.  The
!           built-in functions are described in `cilk-builtins.def'.
  
            During gimplification, a new "spawn-helper" function is
!           created.  The spawned function is replaced with a spawn
!           helper function in the spawner.  The spawned function-call is
!           moved into the spawn helper.  The main function that does
!           these transformations is `gimplify_cilk_spawn' in
!           `c-family/cilk.c'.  In the spawn-helper, the gimplification
!           function `gimplify_call_expr', inserts a function call
!           `__cilkrts_detach'.  This function is expanded by
!           `builtin_expand_cilk_detach' located in `c-family/cilk.c'.
  
!         * `_Cilk_sync': `_Cilk_sync' is parsed like a keyword.  During
!           gimplification, the function `gimplify_cilk_sync' in
!           `c-family/cilk.c', will replace this keyword with a set of
            functions that are stored in the Cilk runtime.  One of the
            internal functions inserted during gimplification,
!           `__cilkrts_pop_frame' must be expanded by the compiler and is
!           done by `builtin_expand_cilk_pop_frame' in `cilk-common.c'.
! 
  
   Documentation about Cilk Plus and language specification is provided
! under the "Learn" section in `https://www.cilkplus.org'.  It is worth
  mentioning that the current implementation follows ABI 1.1.
  
  
--- 6566,6624 ----
  9.2 Cilk Plus Transformation
  ============================
  
! If Cilk Plus generation (flag '-fcilkplus') is enabled, all the Cilk
  Plus code is transformed into equivalent C and C++ functions.  Majority
  of this transformation occurs toward the end of the parsing and right
  before the gimplification pass.
  
   These are the major components to the Cilk Plus language extension:
     * Array Notations: During parsing phase, all the array notation
!      specific information is stored in 'ARRAY_NOTATION_REF' tree using
!      the function 'c_parser_array_notation'.  During the end of parsing,
!      we check the entire function to see if there are any array notation
!      specific code (using the function 'contains_array_notation_expr').
!      If this function returns true, then we expand them using either
!      'expand_array_notation_exprs' or 'build_array_notation_expr'.  For
!      the cases where array notations are inside conditions, they are
!      transformed using the function 'fix_conditional_array_notations'.
!      The C language-specific routines are located in
!      'c/c-array-notation.c' and the equivalent C++ routines are in the
!      file 'cp/cp-array-notation.c'.  Common routines such as functions
!      to initialize built-in functions are stored in
!      'array-notation-common.c'.
  
     * Cilk keywords:
!         * '_Cilk_spawn': The '_Cilk_spawn' keyword is parsed and the
            function it contains is marked as a spawning function.  The
            spawning function is called the spawner.  At the end of the
!           parsing phase, appropriate built-in functions are added to the
!           spawner that are defined in the Cilk runtime.  The appropriate
!           locations of these functions, and the internal structures are
!           detailed in 'cilk_init_builtins' in the file 'cilk-common.c'.
!           The pointers to Cilk functions and fields of internal
!           structures are described in 'cilk.h'.  The built-in functions
!           are described in 'cilk-builtins.def'.
  
            During gimplification, a new "spawn-helper" function is
!           created.  The spawned function is replaced with a spawn helper
!           function in the spawner.  The spawned function-call is moved
!           into the spawn helper.  The main function that does these
!           transformations is 'gimplify_cilk_spawn' in 'c-family/cilk.c'.
!           In the spawn-helper, the gimplification function
!           'gimplify_call_expr', inserts a function call
!           '__cilkrts_detach'.  This function is expanded by
!           'builtin_expand_cilk_detach' located in 'c-family/cilk.c'.
  
!         * '_Cilk_sync': '_Cilk_sync' is parsed like a keyword.  During
!           gimplification, the function 'gimplify_cilk_sync' in
!           'c-family/cilk.c', will replace this keyword with a set of
            functions that are stored in the Cilk runtime.  One of the
            internal functions inserted during gimplification,
!           '__cilkrts_pop_frame' must be expanded by the compiler and is
!           done by 'builtin_expand_cilk_pop_frame' in 'cilk-common.c'.
  
   Documentation about Cilk Plus and language specification is provided
! under the "Learn" section in <https://www.cilkplus.org>.  It is worth
  mentioning that the current implementation follows ABI 1.1.
  
  
*************** intermediate language used by the front
*** 6781,6803 ****
  Usually it is easier to generate GENERIC trees plus extensions and let
  the language-independent gimplifier do most of the work.
  
!  The main entry point to this pass is `gimplify_function_tree' located
! in `gimplify.c'.  From here we process the entire function gimplifying
  each statement in turn.  The main workhorse for this pass is
! `gimplify_expr'.  Approximately everything passes through here at least
! once, and it is from here that we invoke the `lang_hooks.gimplify_expr'
  callback.
  
   The callback should examine the expression in question and return
! `GS_UNHANDLED' if the expression is not a language specific construct
  that requires attention.  Otherwise it should alter the expression in
  some way to such that forward progress is made toward producing valid
  GIMPLE.  If the callback is certain that the transformation is complete
! and the expression is valid GIMPLE, it should return `GS_ALL_DONE'.
! Otherwise it should return `GS_OK', which will cause the expression to
  be processed again.  If the callback encounters an error during the
  transformation (because the front end is relying on the gimplification
! process to finish semantic checks), it should return `GS_ERROR'.
  
  
  File: gccint.info,  Node: Pass manager,  Next: Tree SSA passes,  Prev: Gimplification pass,  Up: Passes
--- 6639,6661 ----
  Usually it is easier to generate GENERIC trees plus extensions and let
  the language-independent gimplifier do most of the work.
  
!  The main entry point to this pass is 'gimplify_function_tree' located
! in 'gimplify.c'.  From here we process the entire function gimplifying
  each statement in turn.  The main workhorse for this pass is
! 'gimplify_expr'.  Approximately everything passes through here at least
! once, and it is from here that we invoke the 'lang_hooks.gimplify_expr'
  callback.
  
   The callback should examine the expression in question and return
! 'GS_UNHANDLED' if the expression is not a language specific construct
  that requires attention.  Otherwise it should alter the expression in
  some way to such that forward progress is made toward producing valid
  GIMPLE.  If the callback is certain that the transformation is complete
! and the expression is valid GIMPLE, it should return 'GS_ALL_DONE'.
! Otherwise it should return 'GS_OK', which will cause the expression to
  be processed again.  If the callback encounters an error during the
  transformation (because the front end is relying on the gimplification
! process to finish semantic checks), it should return 'GS_ERROR'.
  
  
  File: gccint.info,  Node: Pass manager,  Next: Tree SSA passes,  Prev: Gimplification pass,  Up: Passes
*************** File: gccint.info,  Node: Pass manager,
*** 6805,6824 ****
  9.4 Pass manager
  ================
  
! The pass manager is located in `passes.c', `tree-optimize.c' and
! `tree-pass.h'.  It processes passes as described in `passes.def'.  Its
  job is to run all of the individual passes in the correct order, and
  take care of standard bookkeeping that applies to every pass.
  
   The theory of operation is that each pass defines a structure that
! represents everything we need to know about that pass--when it should
! be run, how it should be run, what intermediate language form or
! on-the-side data structures it needs.  We register the pass to be run
! in some particular order, and the pass manager arranges for everything
! to happen in the correct order.
  
   The actuality doesn't completely live up to the theory at present.
! Command-line switches and `timevar_id_t' enumerations must still be
  defined elsewhere.  The pass manager validates constraints but does not
  attempt to (re-)generate data structures or lower intermediate language
  form based on the requirements of the next pass.  Nevertheless, what is
--- 6663,6682 ----
  9.4 Pass manager
  ================
  
! The pass manager is located in 'passes.c', 'tree-optimize.c' and
! 'tree-pass.h'.  It processes passes as described in 'passes.def'.  Its
  job is to run all of the individual passes in the correct order, and
  take care of standard bookkeeping that applies to every pass.
  
   The theory of operation is that each pass defines a structure that
! represents everything we need to know about that pass--when it should be
! run, how it should be run, what intermediate language form or
! on-the-side data structures it needs.  We register the pass to be run in
! some particular order, and the pass manager arranges for everything to
! happen in the correct order.
  
   The actuality doesn't completely live up to the theory at present.
! Command-line switches and 'timevar_id_t' enumerations must still be
  defined elsewhere.  The pass manager validates constraints but does not
  attempt to (re-)generate data structures or lower intermediate language
  form based on the requirements of the next pass.  Nevertheless, what is
*************** present is useful, and a far sight bette
*** 6828,6836 ****
  file (for GCC debugging purposes).  Passes with a name starting with a
  star do not dump anything.  Sometimes passes are supposed to share a
  dump file / option name.  To still give these unique names, you can use
! a prefix that is delimited by a space from the part that is used for
! the dump file / option name.  E.g. When the pass name is "ud dce", the
! name used for dump file/options is "dce".
  
   TODO: describe the global variables set up by the pass manager, and a
  brief description of how a new pass should use it.  I need to look at
--- 6686,6694 ----
  file (for GCC debugging purposes).  Passes with a name starting with a
  star do not dump anything.  Sometimes passes are supposed to share a
  dump file / option name.  To still give these unique names, you can use
! a prefix that is delimited by a space from the part that is used for the
! dump file / option name.  E.g.  When the pass name is "ud dce", the name
! used for dump file/options is "dce".
  
   TODO: describe the global variables set up by the pass manager, and a
  brief description of how a new pass should use it.  I need to look at
*************** run after gimplification and what source
*** 6849,7012 ****
  
       This pass is an extremely simple sweep across the gimple code in
       which we identify obviously dead code and remove it.  Here we do
!      things like simplify `if' statements with constant conditions,
       remove exception handling constructs surrounding code that
       obviously cannot throw, remove lexical bindings that contain no
       variables, and other assorted simplistic cleanups.  The idea is to
       get rid of the obvious stuff quickly rather than wait until later
       when it's more work to get rid of it.  This pass is located in
!      `tree-cfg.c' and described by `pass_remove_useless_stmts'.
  
     * OpenMP lowering
  
!      If OpenMP generation (`-fopenmp') is enabled, this pass lowers
       OpenMP constructs into GIMPLE.
  
       Lowering of OpenMP constructs involves creating replacement
       expressions for local variables that have been mapped using data
       sharing clauses, exposing the control flow of most synchronization
       directives and adding region markers to facilitate the creation of
!      the control flow graph.  The pass is located in `omp-low.c' and is
!      described by `pass_lower_omp'.
  
     * OpenMP expansion
  
!      If OpenMP generation (`-fopenmp') is enabled, this pass expands
       parallel regions into their own functions to be invoked by the
!      thread library.  The pass is located in `omp-low.c' and is
!      described by `pass_expand_omp'.
  
     * Lower control flow
  
!      This pass flattens `if' statements (`COND_EXPR') and moves lexical
!      bindings (`BIND_EXPR') out of line.  After this pass, all `if'
!      statements will have exactly two `goto' statements in its `then'
!      and `else' arms.  Lexical binding information for each statement
!      will be found in `TREE_BLOCK' rather than being inferred from its
!      position under a `BIND_EXPR'.  This pass is found in
!      `gimple-low.c' and is described by `pass_lower_cf'.
  
     * Lower exception handling control flow
  
       This pass decomposes high-level exception handling constructs
!      (`TRY_FINALLY_EXPR' and `TRY_CATCH_EXPR') into a form that
       explicitly represents the control flow involved.  After this pass,
!      `lookup_stmt_eh_region' will return a non-negative number for any
       statement that may have EH control flow semantics; examine
!      `tree_can_throw_internal' or `tree_can_throw_external' for exact
       semantics.  Exact control flow may be extracted from
!      `foreach_reachable_handler'.  The EH region nesting tree is defined
!      in `except.h' and built in `except.c'.  The lowering pass itself
!      is in `tree-eh.c' and is described by `pass_lower_eh'.
  
     * Build the control flow graph
  
       This pass decomposes a function into basic blocks and creates all
!      of the edges that connect them.  It is located in `tree-cfg.c' and
!      is described by `pass_build_cfg'.
  
     * Find all referenced variables
  
       This pass walks the entire function and collects an array of all
!      variables referenced in the function, `referenced_vars'.  The
!      index at which a variable is found in the array is used as a UID
!      for the variable within this function.  This data is needed by the
!      SSA rewriting routines.  The pass is located in `tree-dfa.c' and
!      is described by `pass_referenced_vars'.
  
     * Enter static single assignment form
  
       This pass rewrites the function such that it is in SSA form.  After
!      this pass, all `is_gimple_reg' variables will be referenced by
!      `SSA_NAME', and all occurrences of other variables will be
!      annotated with `VDEFS' and `VUSES'; PHI nodes will have been
       inserted as necessary for each basic block.  This pass is located
!      in `tree-ssa.c' and is described by `pass_build_ssa'.
  
     * Warn for uninitialized variables
  
!      This pass scans the function for uses of `SSA_NAME's that are fed
       by default definition.  For non-parameter variables, such uses are
       uninitialized.  The pass is run twice, before and after
       optimization (if turned on).  In the first pass we only warn for
       uses that are positively uninitialized; in the second pass we warn
       for uses that are possibly uninitialized.  The pass is located in
!      `tree-ssa.c' and is defined by `pass_early_warn_uninitialized' and
!      `pass_late_warn_uninitialized'.
  
     * Dead code elimination
  
       This pass scans the function for statements without side effects
       whose result is unused.  It does not do memory life analysis, so
!      any value that is stored in memory is considered used.  The pass
!      is run multiple times throughout the optimization process.  It is
!      located in `tree-ssa-dce.c' and is described by `pass_dce'.
  
     * Dominator optimizations
  
       This pass performs trivial dominator-based copy and constant
       propagation, expression simplification, and jump threading.  It is
       run multiple times throughout the optimization process.  It is
!      located in `tree-ssa-dom.c' and is described by `pass_dominator'.
  
     * Forward propagation of single-use variables
  
       This pass attempts to remove redundant computation by substituting
       variables that are used once into the expression that uses them and
       seeing if the result can be simplified.  It is located in
!      `tree-ssa-forwprop.c' and is described by `pass_forwprop'.
  
     * Copy Renaming
  
       This pass attempts to change the name of compiler temporaries
       involved in copy operations such that SSA->normal can coalesce the
!      copy away.  When compiler temporaries are copies of user
!      variables, it also renames the compiler temporary to the user
!      variable resulting in better use of user symbols.  It is located
!      in `tree-ssa-copyrename.c' and is described by `pass_copyrename'.
  
     * PHI node optimizations
  
       This pass recognizes forms of PHI inputs that can be represented as
       conditional expressions and rewrites them into straight line code.
!      It is located in `tree-ssa-phiopt.c' and is described by
!      `pass_phiopt'.
  
     * May-alias optimization
  
       This pass performs a flow sensitive SSA-based points-to analysis.
       The resulting may-alias, must-alias, and escape analysis
!      information is used to promote variables from in-memory
!      addressable objects to non-aliased variables that can be renamed
!      into SSA form.  We also update the `VDEF'/`VUSE' memory tags for
!      non-renameable aggregates so that we get fewer false kills.  The
!      pass is located in `tree-ssa-alias.c' and is described by
!      `pass_may_alias'.
  
       Interprocedural points-to information is located in
!      `tree-ssa-structalias.c' and described by `pass_ipa_pta'.
  
     * Profiling
  
       This pass instruments the function in order to collect runtime
!      block and value profiling data.  Such data may be fed back into
!      the compiler on a subsequent run so as to allow optimization based
!      on expected execution frequencies.  The pass is located in
!      `tree-profile.c' and is described by `pass_ipa_tree_profile'.
  
     * Static profile estimation
  
       This pass implements series of heuristics to guess propababilities
       of branches.  The resulting predictions are turned into edge
       profile by propagating branches across the control flow graphs.
!      The pass is located in `tree-profile.c' and is described by
!      `pass_profile'.
  
     * Lower complex arithmetic
  
       This pass rewrites complex arithmetic operations into their
       component scalar arithmetic operations.  The pass is located in
!      `tree-complex.c' and is described by `pass_lower_complex'.
  
     * Scalar replacement of aggregates
  
--- 6707,6869 ----
  
       This pass is an extremely simple sweep across the gimple code in
       which we identify obviously dead code and remove it.  Here we do
!      things like simplify 'if' statements with constant conditions,
       remove exception handling constructs surrounding code that
       obviously cannot throw, remove lexical bindings that contain no
       variables, and other assorted simplistic cleanups.  The idea is to
       get rid of the obvious stuff quickly rather than wait until later
       when it's more work to get rid of it.  This pass is located in
!      'tree-cfg.c' and described by 'pass_remove_useless_stmts'.
  
     * OpenMP lowering
  
!      If OpenMP generation ('-fopenmp') is enabled, this pass lowers
       OpenMP constructs into GIMPLE.
  
       Lowering of OpenMP constructs involves creating replacement
       expressions for local variables that have been mapped using data
       sharing clauses, exposing the control flow of most synchronization
       directives and adding region markers to facilitate the creation of
!      the control flow graph.  The pass is located in 'omp-low.c' and is
!      described by 'pass_lower_omp'.
  
     * OpenMP expansion
  
!      If OpenMP generation ('-fopenmp') is enabled, this pass expands
       parallel regions into their own functions to be invoked by the
!      thread library.  The pass is located in 'omp-low.c' and is
!      described by 'pass_expand_omp'.
  
     * Lower control flow
  
!      This pass flattens 'if' statements ('COND_EXPR') and moves lexical
!      bindings ('BIND_EXPR') out of line.  After this pass, all 'if'
!      statements will have exactly two 'goto' statements in its 'then'
!      and 'else' arms.  Lexical binding information for each statement
!      will be found in 'TREE_BLOCK' rather than being inferred from its
!      position under a 'BIND_EXPR'.  This pass is found in 'gimple-low.c'
!      and is described by 'pass_lower_cf'.
  
     * Lower exception handling control flow
  
       This pass decomposes high-level exception handling constructs
!      ('TRY_FINALLY_EXPR' and 'TRY_CATCH_EXPR') into a form that
       explicitly represents the control flow involved.  After this pass,
!      'lookup_stmt_eh_region' will return a non-negative number for any
       statement that may have EH control flow semantics; examine
!      'tree_can_throw_internal' or 'tree_can_throw_external' for exact
       semantics.  Exact control flow may be extracted from
!      'foreach_reachable_handler'.  The EH region nesting tree is defined
!      in 'except.h' and built in 'except.c'.  The lowering pass itself is
!      in 'tree-eh.c' and is described by 'pass_lower_eh'.
  
     * Build the control flow graph
  
       This pass decomposes a function into basic blocks and creates all
!      of the edges that connect them.  It is located in 'tree-cfg.c' and
!      is described by 'pass_build_cfg'.
  
     * Find all referenced variables
  
       This pass walks the entire function and collects an array of all
!      variables referenced in the function, 'referenced_vars'.  The index
!      at which a variable is found in the array is used as a UID for the
!      variable within this function.  This data is needed by the SSA
!      rewriting routines.  The pass is located in 'tree-dfa.c' and is
!      described by 'pass_referenced_vars'.
  
     * Enter static single assignment form
  
       This pass rewrites the function such that it is in SSA form.  After
!      this pass, all 'is_gimple_reg' variables will be referenced by
!      'SSA_NAME', and all occurrences of other variables will be
!      annotated with 'VDEFS' and 'VUSES'; PHI nodes will have been
       inserted as necessary for each basic block.  This pass is located
!      in 'tree-ssa.c' and is described by 'pass_build_ssa'.
  
     * Warn for uninitialized variables
  
!      This pass scans the function for uses of 'SSA_NAME's that are fed
       by default definition.  For non-parameter variables, such uses are
       uninitialized.  The pass is run twice, before and after
       optimization (if turned on).  In the first pass we only warn for
       uses that are positively uninitialized; in the second pass we warn
       for uses that are possibly uninitialized.  The pass is located in
!      'tree-ssa.c' and is defined by 'pass_early_warn_uninitialized' and
!      'pass_late_warn_uninitialized'.
  
     * Dead code elimination
  
       This pass scans the function for statements without side effects
       whose result is unused.  It does not do memory life analysis, so
!      any value that is stored in memory is considered used.  The pass is
!      run multiple times throughout the optimization process.  It is
!      located in 'tree-ssa-dce.c' and is described by 'pass_dce'.
  
     * Dominator optimizations
  
       This pass performs trivial dominator-based copy and constant
       propagation, expression simplification, and jump threading.  It is
       run multiple times throughout the optimization process.  It is
!      located in 'tree-ssa-dom.c' and is described by 'pass_dominator'.
  
     * Forward propagation of single-use variables
  
       This pass attempts to remove redundant computation by substituting
       variables that are used once into the expression that uses them and
       seeing if the result can be simplified.  It is located in
!      'tree-ssa-forwprop.c' and is described by 'pass_forwprop'.
  
     * Copy Renaming
  
       This pass attempts to change the name of compiler temporaries
       involved in copy operations such that SSA->normal can coalesce the
!      copy away.  When compiler temporaries are copies of user variables,
!      it also renames the compiler temporary to the user variable
!      resulting in better use of user symbols.  It is located in
!      'tree-ssa-copyrename.c' and is described by 'pass_copyrename'.
  
     * PHI node optimizations
  
       This pass recognizes forms of PHI inputs that can be represented as
       conditional expressions and rewrites them into straight line code.
!      It is located in 'tree-ssa-phiopt.c' and is described by
!      'pass_phiopt'.
  
     * May-alias optimization
  
       This pass performs a flow sensitive SSA-based points-to analysis.
       The resulting may-alias, must-alias, and escape analysis
!      information is used to promote variables from in-memory addressable
!      objects to non-aliased variables that can be renamed into SSA form.
!      We also update the 'VDEF'/'VUSE' memory tags for non-renameable
!      aggregates so that we get fewer false kills.  The pass is located
!      in 'tree-ssa-alias.c' and is described by 'pass_may_alias'.
  
       Interprocedural points-to information is located in
!      'tree-ssa-structalias.c' and described by 'pass_ipa_pta'.
  
     * Profiling
  
       This pass instruments the function in order to collect runtime
!      block and value profiling data.  Such data may be fed back into the
!      compiler on a subsequent run so as to allow optimization based on
!      expected execution frequencies.  The pass is located in
!      'tree-profile.c' and is described by 'pass_ipa_tree_profile'.
  
     * Static profile estimation
  
       This pass implements series of heuristics to guess propababilities
       of branches.  The resulting predictions are turned into edge
       profile by propagating branches across the control flow graphs.
!      The pass is located in 'tree-profile.c' and is described by
!      'pass_profile'.
  
     * Lower complex arithmetic
  
       This pass rewrites complex arithmetic operations into their
       component scalar arithmetic operations.  The pass is located in
!      'tree-complex.c' and is described by 'pass_lower_complex'.
  
     * Scalar replacement of aggregates
  
*************** run after gimplification and what source
*** 7014,7123 ****
       into a set of scalar variables.  The resulting scalar variables are
       rewritten into SSA form, which allows subsequent optimization
       passes to do a significantly better job with them.  The pass is
!      located in `tree-sra.c' and is described by `pass_sra'.
  
     * Dead store elimination
  
       This pass eliminates stores to memory that are subsequently
       overwritten by another store, without any intervening loads.  The
!      pass is located in `tree-ssa-dse.c' and is described by `pass_dse'.
  
     * Tail recursion elimination
  
       This pass transforms tail recursion into a loop.  It is located in
!      `tree-tailcall.c' and is described by `pass_tail_recursion'.
  
     * Forward store motion
  
!      This pass sinks stores and assignments down the flowgraph closer
!      to their use point.  The pass is located in `tree-ssa-sink.c' and
!      is described by `pass_sink_code'.
  
     * Partial redundancy elimination
  
       This pass eliminates partially redundant computations, as well as
!      performing load motion.  The pass is located in `tree-ssa-pre.c'
!      and is described by `pass_pre'.
  
       Just before partial redundancy elimination, if
!      `-funsafe-math-optimizations' is on, GCC tries to convert
!      divisions to multiplications by the reciprocal.  The pass is
!      located in `tree-ssa-math-opts.c' and is described by
!      `pass_cse_reciprocal'.
  
     * Full redundancy elimination
  
       This is a simpler form of PRE that only eliminates redundancies
!      that occur on all paths.  It is located in `tree-ssa-pre.c' and
!      described by `pass_fre'.
  
     * Loop optimization
  
!      The main driver of the pass is placed in `tree-ssa-loop.c' and
!      described by `pass_loop'.
  
       The optimizations performed by this pass are:
  
       Loop invariant motion.  This pass moves only invariants that would
       be hard to handle on RTL level (function calls, operations that
!      expand to nontrivial sequences of insns).  With `-funswitch-loops'
       it also moves operands of conditions that are invariant out of the
       loop, so that we can use just trivial invariantness analysis in
       loop unswitching.  The pass also includes store motion.  The pass
!      is implemented in `tree-ssa-loop-im.c'.
  
       Canonical induction variable creation.  This pass creates a simple
       counter for number of iterations of the loop and replaces the exit
!      condition of the loop using it, in case when a complicated
!      analysis is necessary to determine the number of iterations.
!      Later optimizations then may determine the number easily.  The
!      pass is implemented in `tree-ssa-loop-ivcanon.c'.
  
       Induction variable optimizations.  This pass performs standard
       induction variable optimizations, including strength reduction,
!      induction variable merging and induction variable elimination.
!      The pass is implemented in `tree-ssa-loop-ivopts.c'.
  
       Loop unswitching.  This pass moves the conditional jumps that are
       invariant out of the loops.  To achieve this, a duplicate of the
       loop is created for each possible outcome of conditional jump(s).
!      The pass is implemented in `tree-ssa-loop-unswitch.c'.
  
       The optimizations also use various utility functions contained in
!      `tree-ssa-loop-manip.c', `cfgloop.c', `cfgloopanal.c' and
!      `cfgloopmanip.c'.
  
       Vectorization.  This pass transforms loops to operate on vector
       types instead of scalar types.  Data parallelism across loop
       iterations is exploited to group data elements from consecutive
       iterations into a vector and operate on them in parallel.
       Depending on available target support the loop is conceptually
!      unrolled by a factor `VF' (vectorization factor), which is the
!      number of elements operated upon in parallel in each iteration,
!      and the `VF' copies of each scalar operation are fused to form a
!      vector operation.  Additional loop transformations such as peeling
!      and versioning may take place to align the number of iterations,
!      and to align the memory accesses in the loop.  The pass is
!      implemented in `tree-vectorizer.c' (the main driver),
!      `tree-vect-loop.c' and `tree-vect-loop-manip.c' (loop specific
!      parts and general loop utilities), `tree-vect-slp' (loop-aware SLP
!      functionality), `tree-vect-stmts.c' and `tree-vect-data-refs.c'.
!      Analysis of data references is in `tree-data-ref.c'.
  
       SLP Vectorization.  This pass performs vectorization of
!      straight-line code. The pass is implemented in `tree-vectorizer.c'
!      (the main driver), `tree-vect-slp.c', `tree-vect-stmts.c' and
!      `tree-vect-data-refs.c'.
  
       Autoparallelization.  This pass splits the loop iteration space to
       run into several threads.  The pass is implemented in
!      `tree-parloops.c'.
  
       Graphite is a loop transformation framework based on the polyhedral
       model.  Graphite stands for Gimple Represented as Polyhedra.  The
       internals of this infrastructure are documented in
!      `http://gcc.gnu.org/wiki/Graphite'.  The passes working on this
!      representation are implemented in the various `graphite-*' files.
  
     * Tree level if-conversion for vectorizer
  
--- 6871,6979 ----
       into a set of scalar variables.  The resulting scalar variables are
       rewritten into SSA form, which allows subsequent optimization
       passes to do a significantly better job with them.  The pass is
!      located in 'tree-sra.c' and is described by 'pass_sra'.
  
     * Dead store elimination
  
       This pass eliminates stores to memory that are subsequently
       overwritten by another store, without any intervening loads.  The
!      pass is located in 'tree-ssa-dse.c' and is described by 'pass_dse'.
  
     * Tail recursion elimination
  
       This pass transforms tail recursion into a loop.  It is located in
!      'tree-tailcall.c' and is described by 'pass_tail_recursion'.
  
     * Forward store motion
  
!      This pass sinks stores and assignments down the flowgraph closer to
!      their use point.  The pass is located in 'tree-ssa-sink.c' and is
!      described by 'pass_sink_code'.
  
     * Partial redundancy elimination
  
       This pass eliminates partially redundant computations, as well as
!      performing load motion.  The pass is located in 'tree-ssa-pre.c'
!      and is described by 'pass_pre'.
  
       Just before partial redundancy elimination, if
!      '-funsafe-math-optimizations' is on, GCC tries to convert divisions
!      to multiplications by the reciprocal.  The pass is located in
!      'tree-ssa-math-opts.c' and is described by 'pass_cse_reciprocal'.
  
     * Full redundancy elimination
  
       This is a simpler form of PRE that only eliminates redundancies
!      that occur on all paths.  It is located in 'tree-ssa-pre.c' and
!      described by 'pass_fre'.
  
     * Loop optimization
  
!      The main driver of the pass is placed in 'tree-ssa-loop.c' and
!      described by 'pass_loop'.
  
       The optimizations performed by this pass are:
  
       Loop invariant motion.  This pass moves only invariants that would
       be hard to handle on RTL level (function calls, operations that
!      expand to nontrivial sequences of insns).  With '-funswitch-loops'
       it also moves operands of conditions that are invariant out of the
       loop, so that we can use just trivial invariantness analysis in
       loop unswitching.  The pass also includes store motion.  The pass
!      is implemented in 'tree-ssa-loop-im.c'.
  
       Canonical induction variable creation.  This pass creates a simple
       counter for number of iterations of the loop and replaces the exit
!      condition of the loop using it, in case when a complicated analysis
!      is necessary to determine the number of iterations.  Later
!      optimizations then may determine the number easily.  The pass is
!      implemented in 'tree-ssa-loop-ivcanon.c'.
  
       Induction variable optimizations.  This pass performs standard
       induction variable optimizations, including strength reduction,
!      induction variable merging and induction variable elimination.  The
!      pass is implemented in 'tree-ssa-loop-ivopts.c'.
  
       Loop unswitching.  This pass moves the conditional jumps that are
       invariant out of the loops.  To achieve this, a duplicate of the
       loop is created for each possible outcome of conditional jump(s).
!      The pass is implemented in 'tree-ssa-loop-unswitch.c'.
  
       The optimizations also use various utility functions contained in
!      'tree-ssa-loop-manip.c', 'cfgloop.c', 'cfgloopanal.c' and
!      'cfgloopmanip.c'.
  
       Vectorization.  This pass transforms loops to operate on vector
       types instead of scalar types.  Data parallelism across loop
       iterations is exploited to group data elements from consecutive
       iterations into a vector and operate on them in parallel.
       Depending on available target support the loop is conceptually
!      unrolled by a factor 'VF' (vectorization factor), which is the
!      number of elements operated upon in parallel in each iteration, and
!      the 'VF' copies of each scalar operation are fused to form a vector
!      operation.  Additional loop transformations such as peeling and
!      versioning may take place to align the number of iterations, and to
!      align the memory accesses in the loop.  The pass is implemented in
!      'tree-vectorizer.c' (the main driver), 'tree-vect-loop.c' and
!      'tree-vect-loop-manip.c' (loop specific parts and general loop
!      utilities), 'tree-vect-slp' (loop-aware SLP functionality),
!      'tree-vect-stmts.c' and 'tree-vect-data-refs.c'.  Analysis of data
!      references is in 'tree-data-ref.c'.
  
       SLP Vectorization.  This pass performs vectorization of
!      straight-line code.  The pass is implemented in 'tree-vectorizer.c'
!      (the main driver), 'tree-vect-slp.c', 'tree-vect-stmts.c' and
!      'tree-vect-data-refs.c'.
  
       Autoparallelization.  This pass splits the loop iteration space to
       run into several threads.  The pass is implemented in
!      'tree-parloops.c'.
  
       Graphite is a loop transformation framework based on the polyhedral
       model.  Graphite stands for Gimple Represented as Polyhedra.  The
       internals of this infrastructure are documented in
!      <http://gcc.gnu.org/wiki/Graphite>.  The passes working on this
!      representation are implemented in the various 'graphite-*' files.
  
     * Tree level if-conversion for vectorizer
  
*************** run after gimplification and what source
*** 7126,7154 ****
       basic blocks in one big block.  The idea is to present loop in such
       form so that vectorizer can have one to one mapping between
       statements and available vector operations.  This pass is located
!      in `tree-if-conv.c' and is described by `pass_if_conversion'.
  
     * Conditional constant propagation
  
       This pass relaxes a lattice of values in order to identify those
       that must be constant even in the presence of conditional branches.
!      The pass is located in `tree-ssa-ccp.c' and is described by
!      `pass_ccp'.
  
       A related pass that works on memory loads and stores, and not just
!      register values, is located in `tree-ssa-ccp.c' and described by
!      `pass_store_ccp'.
  
     * Conditional copy propagation
  
       This is similar to constant propagation but the lattice of values
       is the "copy-of" relation.  It eliminates redundant copies from the
!      code.  The pass is located in `tree-ssa-copy.c' and described by
!      `pass_copy_prop'.
  
       A related pass that works on memory copies, and not just register
!      copies, is located in `tree-ssa-copy.c' and described by
!      `pass_store_copy_prop'.
  
     * Value range propagation
  
--- 6982,7010 ----
       basic blocks in one big block.  The idea is to present loop in such
       form so that vectorizer can have one to one mapping between
       statements and available vector operations.  This pass is located
!      in 'tree-if-conv.c' and is described by 'pass_if_conversion'.
  
     * Conditional constant propagation
  
       This pass relaxes a lattice of values in order to identify those
       that must be constant even in the presence of conditional branches.
!      The pass is located in 'tree-ssa-ccp.c' and is described by
!      'pass_ccp'.
  
       A related pass that works on memory loads and stores, and not just
!      register values, is located in 'tree-ssa-ccp.c' and described by
!      'pass_store_ccp'.
  
     * Conditional copy propagation
  
       This is similar to constant propagation but the lattice of values
       is the "copy-of" relation.  It eliminates redundant copies from the
!      code.  The pass is located in 'tree-ssa-copy.c' and described by
!      'pass_copy_prop'.
  
       A related pass that works on memory copies, and not just register
!      copies, is located in 'tree-ssa-copy.c' and described by
!      'pass_store_copy_prop'.
  
     * Value range propagation
  
*************** run after gimplification and what source
*** 7159,7186 ****
       Range Propagation, J. R. C. Patterson, PLDI '95).  In contrast to
       Patterson's algorithm, this implementation does not propagate
       branch probabilities nor it uses more than a single range per SSA
!      name. This means that the current implementation cannot be used
       for branch prediction (though adapting it would not be difficult).
!      The pass is located in `tree-vrp.c' and is described by `pass_vrp'.
  
     * Folding built-in functions
  
       This pass simplifies built-in functions, as applicable, with
!      constant arguments or with inferable string lengths.  It is
!      located in `tree-ssa-ccp.c' and is described by
!      `pass_fold_builtins'.
  
     * Split critical edges
  
       This pass identifies critical edges and inserts empty basic blocks
       such that the edge is no longer critical.  The pass is located in
!      `tree-cfg.c' and is described by `pass_split_crit_edges'.
  
     * Control dependence dead code elimination
  
       This pass is a stronger form of dead code elimination that can
!      eliminate unnecessary control flow statements.   It is located in
!      `tree-ssa-dce.c' and is described by `pass_cd_dce'.
  
     * Tail call elimination
  
--- 7015,7041 ----
       Range Propagation, J. R. C. Patterson, PLDI '95).  In contrast to
       Patterson's algorithm, this implementation does not propagate
       branch probabilities nor it uses more than a single range per SSA
!      name.  This means that the current implementation cannot be used
       for branch prediction (though adapting it would not be difficult).
!      The pass is located in 'tree-vrp.c' and is described by 'pass_vrp'.
  
     * Folding built-in functions
  
       This pass simplifies built-in functions, as applicable, with
!      constant arguments or with inferable string lengths.  It is located
!      in 'tree-ssa-ccp.c' and is described by 'pass_fold_builtins'.
  
     * Split critical edges
  
       This pass identifies critical edges and inserts empty basic blocks
       such that the edge is no longer critical.  The pass is located in
!      'tree-cfg.c' and is described by 'pass_split_crit_edges'.
  
     * Control dependence dead code elimination
  
       This pass is a stronger form of dead code elimination that can
!      eliminate unnecessary control flow statements.  It is located in
!      'tree-ssa-dce.c' and is described by 'pass_cd_dce'.
  
     * Tail call elimination
  
*************** run after gimplification and what source
*** 7188,7197 ****
       jumps.  No code transformation is actually applied here, but the
       data and control flow problem is solved.  The code transformation
       requires target support, and so is delayed until RTL.  In the
!      meantime `CALL_EXPR_TAILCALL' is set indicating the possibility.
!      The pass is located in `tree-tailcall.c' and is described by
!      `pass_tail_calls'.  The RTL transformation is handled by
!      `fixup_tail_calls' in `calls.c'.
  
     * Warn for function return without value
  
--- 7043,7052 ----
       jumps.  No code transformation is actually applied here, but the
       data and control flow problem is solved.  The code transformation
       requires target support, and so is delayed until RTL.  In the
!      meantime 'CALL_EXPR_TAILCALL' is set indicating the possibility.
!      The pass is located in 'tree-tailcall.c' and is described by
!      'pass_tail_calls'.  The RTL transformation is handled by
!      'fixup_tail_calls' in 'calls.c'.
  
     * Warn for function return without value
  
*************** run after gimplification and what source
*** 7199,7251 ****
       not specify a value and issues a warning.  Such a statement may
       have been injected by falling off the end of the function.  This
       pass is run last so that we have as much time as possible to prove
!      that the statement is not reachable.  It is located in
!      `tree-cfg.c' and is described by `pass_warn_function_return'.
  
     * Leave static single assignment form
  
       This pass rewrites the function such that it is in normal form.  At
       the same time, we eliminate as many single-use temporaries as
       possible, so the intermediate language is no longer GIMPLE, but
!      GENERIC.  The pass is located in `tree-outof-ssa.c' and is
!      described by `pass_del_ssa'.
  
     * Merge PHI nodes that feed into one another
  
       This is part of the CFG cleanup passes.  It attempts to join PHI
!      nodes from a forwarder CFG block into another block with PHI
!      nodes.  The pass is located in `tree-cfgcleanup.c' and is
!      described by `pass_merge_phi'.
  
     * Return value optimization
  
       If a function always returns the same local variable, and that
       local variable is an aggregate type, then the variable is replaced
       with the return value for the function (i.e., the function's
!      DECL_RESULT).  This is equivalent to the C++ named return value
       optimization applied to GIMPLE.  The pass is located in
!      `tree-nrv.c' and is described by `pass_nrv'.
  
     * Return slot optimization
  
!      If a function returns a memory object and is called as `var =
       foo()', this pass tries to change the call so that the address of
!      `var' is sent to the caller to avoid an extra memory copy.  This
!      pass is located in `tree-nrv.c' and is described by
!      `pass_return_slot'.
  
!    * Optimize calls to `__builtin_object_size'
  
       This is a propagation pass similar to CCP that tries to remove
!      calls to `__builtin_object_size' when the size of the object can be
       computed at compile-time.  This pass is located in
!      `tree-object-size.c' and is described by `pass_object_sizes'.
  
     * Loop invariant motion
  
       This pass removes expensive loop-invariant computations out of
!      loops.  The pass is located in `tree-ssa-loop.c' and described by
!      `pass_lim'.
  
     * Loop nest optimizations
  
--- 7054,7106 ----
       not specify a value and issues a warning.  Such a statement may
       have been injected by falling off the end of the function.  This
       pass is run last so that we have as much time as possible to prove
!      that the statement is not reachable.  It is located in 'tree-cfg.c'
!      and is described by 'pass_warn_function_return'.
  
     * Leave static single assignment form
  
       This pass rewrites the function such that it is in normal form.  At
       the same time, we eliminate as many single-use temporaries as
       possible, so the intermediate language is no longer GIMPLE, but
!      GENERIC.  The pass is located in 'tree-outof-ssa.c' and is
!      described by 'pass_del_ssa'.
  
     * Merge PHI nodes that feed into one another
  
       This is part of the CFG cleanup passes.  It attempts to join PHI
!      nodes from a forwarder CFG block into another block with PHI nodes.
!      The pass is located in 'tree-cfgcleanup.c' and is described by
!      'pass_merge_phi'.
  
     * Return value optimization
  
       If a function always returns the same local variable, and that
       local variable is an aggregate type, then the variable is replaced
       with the return value for the function (i.e., the function's
!      DECL_RESULT). This is equivalent to the C++ named return value
       optimization applied to GIMPLE.  The pass is located in
!      'tree-nrv.c' and is described by 'pass_nrv'.
  
     * Return slot optimization
  
!      If a function returns a memory object and is called as 'var =
       foo()', this pass tries to change the call so that the address of
!      'var' is sent to the caller to avoid an extra memory copy.  This
!      pass is located in 'tree-nrv.c' and is described by
!      'pass_return_slot'.
  
!    * Optimize calls to '__builtin_object_size'
  
       This is a propagation pass similar to CCP that tries to remove
!      calls to '__builtin_object_size' when the size of the object can be
       computed at compile-time.  This pass is located in
!      'tree-object-size.c' and is described by 'pass_object_sizes'.
  
     * Loop invariant motion
  
       This pass removes expensive loop-invariant computations out of
!      loops.  The pass is located in 'tree-ssa-loop.c' and described by
!      'pass_lim'.
  
     * Loop nest optimizations
  
*************** run after gimplification and what source
*** 7254,7309 ****
       they are all geared to the optimization of data locality in array
       traversals and the removal of dependencies that hamper
       optimizations such as loop parallelization and vectorization.  The
!      pass is located in `tree-loop-linear.c' and described by
!      `pass_linear_transform'.
  
     * Removal of empty loops
  
       This pass removes loops with no code in them.  The pass is located
!      in `tree-ssa-loop-ivcanon.c' and described by `pass_empty_loop'.
  
     * Unrolling of small loops
  
       This pass completely unrolls loops with few iterations.  The pass
!      is located in `tree-ssa-loop-ivcanon.c' and described by
!      `pass_complete_unroll'.
  
     * Predictive commoning
  
       This pass makes the code reuse the computations from the previous
!      iterations of the loops, especially loads and stores to memory.
!      It does so by storing the values of these computations to a bank
!      of temporary variables that are rotated at the end of loop.  To
!      avoid the need for this rotation, the loop is then unrolled and
!      the copies of the loop body are rewritten to use the appropriate
       version of the temporary variable.  This pass is located in
!      `tree-predcom.c' and described by `pass_predcom'.
  
     * Array prefetching
  
       This pass issues prefetch instructions for array references inside
!      loops.  The pass is located in `tree-ssa-loop-prefetch.c' and
!      described by `pass_loop_prefetch'.
  
     * Reassociation
  
       This pass rewrites arithmetic expressions to enable optimizations
       that operate on them, like redundancy elimination and
!      vectorization.  The pass is located in `tree-ssa-reassoc.c' and
!      described by `pass_reassoc'.
  
!    * Optimization of `stdarg' functions
  
       This pass tries to avoid the saving of register arguments into the
!      stack on entry to `stdarg' functions.  If the function doesn't use
!      any `va_start' macros, no registers need to be saved.  If
!      `va_start' macros are used, the `va_list' variables don't escape
       the function, it is only necessary to save registers that will be
!      used in `va_arg' macros.  For instance, if `va_arg' is only used
!      with integral types in the function, floating point registers
!      don't need to be saved.  This pass is located in `tree-stdarg.c'
!      and described by `pass_stdarg'.
! 
  
  
  File: gccint.info,  Node: RTL passes,  Next: Optimization info,  Prev: Tree SSA passes,  Up: Passes
--- 7109,7163 ----
       they are all geared to the optimization of data locality in array
       traversals and the removal of dependencies that hamper
       optimizations such as loop parallelization and vectorization.  The
!      pass is located in 'tree-loop-linear.c' and described by
!      'pass_linear_transform'.
  
     * Removal of empty loops
  
       This pass removes loops with no code in them.  The pass is located
!      in 'tree-ssa-loop-ivcanon.c' and described by 'pass_empty_loop'.
  
     * Unrolling of small loops
  
       This pass completely unrolls loops with few iterations.  The pass
!      is located in 'tree-ssa-loop-ivcanon.c' and described by
!      'pass_complete_unroll'.
  
     * Predictive commoning
  
       This pass makes the code reuse the computations from the previous
!      iterations of the loops, especially loads and stores to memory.  It
!      does so by storing the values of these computations to a bank of
!      temporary variables that are rotated at the end of loop.  To avoid
!      the need for this rotation, the loop is then unrolled and the
!      copies of the loop body are rewritten to use the appropriate
       version of the temporary variable.  This pass is located in
!      'tree-predcom.c' and described by 'pass_predcom'.
  
     * Array prefetching
  
       This pass issues prefetch instructions for array references inside
!      loops.  The pass is located in 'tree-ssa-loop-prefetch.c' and
!      described by 'pass_loop_prefetch'.
  
     * Reassociation
  
       This pass rewrites arithmetic expressions to enable optimizations
       that operate on them, like redundancy elimination and
!      vectorization.  The pass is located in 'tree-ssa-reassoc.c' and
!      described by 'pass_reassoc'.
  
!    * Optimization of 'stdarg' functions
  
       This pass tries to avoid the saving of register arguments into the
!      stack on entry to 'stdarg' functions.  If the function doesn't use
!      any 'va_start' macros, no registers need to be saved.  If
!      'va_start' macros are used, the 'va_list' variables don't escape
       the function, it is only necessary to save registers that will be
!      used in 'va_arg' macros.  For instance, if 'va_arg' is only used
!      with integral types in the function, floating point registers don't
!      need to be saved.  This pass is located in 'tree-stdarg.c' and
!      described by 'pass_stdarg'.
  
  
  File: gccint.info,  Node: RTL passes,  Next: Optimization info,  Prev: Tree SSA passes,  Up: Passes
*************** passes that are run after the Tree optim
*** 7316,7349 ****
  
     * RTL generation
  
!      The source files for RTL generation include `stmt.c', `calls.c',
!      `expr.c', `explow.c', `expmed.c', `function.c', `optabs.c' and
!      `emit-rtl.c'.  Also, the file `insn-emit.c', generated from the
!      machine description by the program `genemit', is used in this
!      pass.  The header file `expr.h' is used for communication within
!      this pass.
  
!      The header files `insn-flags.h' and `insn-codes.h', generated from
!      the machine description by the programs `genflags' and `gencodes',
!      tell this pass which standard names are available for use and
!      which patterns correspond to them.
  
     * Generation of exception landing pads
  
       This pass generates the glue that handles communication between the
       exception handling library routines and the exception handlers
!      within the function.  Entry points in the function that are
!      invoked by the exception handling library are called "landing
!      pads".  The code for this pass is located in `except.c'.
  
     * Control flow graph cleanup
  
!      This pass removes unreachable code, simplifies jumps to next,
!      jumps to jump, jumps across jumps, etc.  The pass is run multiple
!      times.  For historical reasons, it is occasionally referred to as
!      the "jump optimization pass".  The bulk of the code for this pass
!      is in `cfgcleanup.c', and there are support routines in `cfgrtl.c'
!      and `jump.c'.
  
     * Forward propagation of single-def values
  
--- 7170,7203 ----
  
     * RTL generation
  
!      The source files for RTL generation include 'stmt.c', 'calls.c',
!      'expr.c', 'explow.c', 'expmed.c', 'function.c', 'optabs.c' and
!      'emit-rtl.c'.  Also, the file 'insn-emit.c', generated from the
!      machine description by the program 'genemit', is used in this pass.
!      The header file 'expr.h' is used for communication within this
!      pass.
  
!      The header files 'insn-flags.h' and 'insn-codes.h', generated from
!      the machine description by the programs 'genflags' and 'gencodes',
!      tell this pass which standard names are available for use and which
!      patterns correspond to them.
  
     * Generation of exception landing pads
  
       This pass generates the glue that handles communication between the
       exception handling library routines and the exception handlers
!      within the function.  Entry points in the function that are invoked
!      by the exception handling library are called "landing pads".  The
!      code for this pass is located in 'except.c'.
  
     * Control flow graph cleanup
  
!      This pass removes unreachable code, simplifies jumps to next, jumps
!      to jump, jumps across jumps, etc.  The pass is run multiple times.
!      For historical reasons, it is occasionally referred to as the "jump
!      optimization pass".  The bulk of the code for this pass is in
!      'cfgcleanup.c', and there are support routines in 'cfgrtl.c' and
!      'jump.c'.
  
     * Forward propagation of single-def values
  
*************** passes that are run after the Tree optim
*** 7352,7401 ****
       result can be simplified.  It performs copy propagation and
       addressing mode selection.  The pass is run twice, with values
       being propagated into loops only on the second run.  The code is
!      located in `fwprop.c'.
  
     * Common subexpression elimination
  
       This pass removes redundant computation within basic blocks, and
       optimizes addressing modes based on cost.  The pass is run twice.
!      The code for this pass is located in `cse.c'.
  
     * Global common subexpression elimination
  
!      This pass performs two different types of GCSE  depending on
!      whether you are optimizing for size or not (LCM based GCSE tends
!      to increase code size for a gain in speed, while Morel-Renvoise
!      based GCSE does not).  When optimizing for size, GCSE is done
!      using Morel-Renvoise Partial Redundancy Elimination, with the
!      exception that it does not try to move invariants out of
!      loops--that is left to  the loop optimization pass.  If MR PRE
!      GCSE is done, code hoisting (aka unification) is also done, as
!      well as load motion.  If you are optimizing for speed, LCM (lazy
!      code motion) based GCSE is done.  LCM is based on the work of
!      Knoop, Ruthing, and Steffen.  LCM based GCSE also does loop
!      invariant code motion.  We also perform load and store motion when
!      optimizing for speed.  Regardless of which type of GCSE is used,
!      the GCSE pass also performs global constant and  copy propagation.
!      The source file for this pass is `gcse.c', and the LCM routines
!      are in `lcm.c'.
  
     * Loop optimization
  
       This pass performs several loop related optimizations.  The source
!      files `cfgloopanal.c' and `cfgloopmanip.c' contain generic loop
!      analysis and manipulation code.  Initialization and finalization
!      of loop structures is handled by `loop-init.c'.  A loop invariant
!      motion pass is implemented in `loop-invariant.c'.  Basic block
!      level optimizations--unrolling, and peeling loops-- are
!      implemented in `loop-unroll.c'.  Replacing of the exit condition
!      of loops by special machine-dependent instructions is handled by
!      `loop-doloop.c'.
  
     * Jump bypassing
  
       This pass is an aggressive form of GCSE that transforms the control
       flow graph of a function by propagating constants into conditional
!      branch instructions.  The source file for this pass is `gcse.c'.
  
     * If conversion
  
--- 7206,7254 ----
       result can be simplified.  It performs copy propagation and
       addressing mode selection.  The pass is run twice, with values
       being propagated into loops only on the second run.  The code is
!      located in 'fwprop.c'.
  
     * Common subexpression elimination
  
       This pass removes redundant computation within basic blocks, and
       optimizes addressing modes based on cost.  The pass is run twice.
!      The code for this pass is located in 'cse.c'.
  
     * Global common subexpression elimination
  
!      This pass performs two different types of GCSE depending on whether
!      you are optimizing for size or not (LCM based GCSE tends to
!      increase code size for a gain in speed, while Morel-Renvoise based
!      GCSE does not).  When optimizing for size, GCSE is done using
!      Morel-Renvoise Partial Redundancy Elimination, with the exception
!      that it does not try to move invariants out of loops--that is left
!      to the loop optimization pass.  If MR PRE GCSE is done, code
!      hoisting (aka unification) is also done, as well as load motion.
!      If you are optimizing for speed, LCM (lazy code motion) based GCSE
!      is done.  LCM is based on the work of Knoop, Ruthing, and Steffen.
!      LCM based GCSE also does loop invariant code motion.  We also
!      perform load and store motion when optimizing for speed.
!      Regardless of which type of GCSE is used, the GCSE pass also
!      performs global constant and copy propagation.  The source file for
!      this pass is 'gcse.c', and the LCM routines are in 'lcm.c'.
  
     * Loop optimization
  
       This pass performs several loop related optimizations.  The source
!      files 'cfgloopanal.c' and 'cfgloopmanip.c' contain generic loop
!      analysis and manipulation code.  Initialization and finalization of
!      loop structures is handled by 'loop-init.c'.  A loop invariant
!      motion pass is implemented in 'loop-invariant.c'.  Basic block
!      level optimizations--unrolling, and peeling loops-- are implemented
!      in 'loop-unroll.c'.  Replacing of the exit condition of loops by
!      special machine-dependent instructions is handled by
!      'loop-doloop.c'.
  
     * Jump bypassing
  
       This pass is an aggressive form of GCSE that transforms the control
       flow graph of a function by propagating constants into conditional
!      branch instructions.  The source file for this pass is 'gcse.c'.
  
     * If conversion
  
*************** passes that are run after the Tree optim
*** 7404,7452 ****
       instructions, and conditional move instructions.  In the very last
       invocation after reload/LRA, it will generate predicated
       instructions when supported by the target.  The code is located in
!      `ifcvt.c'.
  
     * Web construction
  
       This pass splits independent uses of each pseudo-register.  This
       can improve effect of the other transformation, such as CSE or
!      register allocation.  The code for this pass is located in `web.c'.
  
     * Instruction combination
  
       This pass attempts to combine groups of two or three instructions
       that are related by data flow into single instructions.  It
       combines the RTL expressions for the instructions by substitution,
!      simplifies the result using algebra, and then attempts to match
!      the result against the machine description.  The code is located
!      in `combine.c'.
  
     * Mode switching optimization
  
       This pass looks for instructions that require the processor to be
       in a specific "mode" and minimizes the number of mode changes
!      required to satisfy all users.  What these modes are, and what
!      they apply to are completely target-specific.  The code for this
!      pass is located in `mode-switching.c'.
  
     * Modulo scheduling
  
       This pass looks at innermost loops and reorders their instructions
       by overlapping different iterations.  Modulo scheduling is
       performed immediately before instruction scheduling.  The code for
!      this pass is located in `modulo-sched.c'.
  
     * Instruction scheduling
  
!      This pass looks for instructions whose output will not be
!      available by the time that it is used in subsequent instructions.
!      Memory loads and floating point instructions often have this
!      behavior on RISC machines.  It re-orders instructions within a
!      basic block to try to separate the definition and use of items
!      that otherwise would cause pipeline stalls.  This pass is
!      performed twice, before and after register allocation.  The code
!      for this pass is located in `haifa-sched.c', `sched-deps.c',
!      `sched-ebb.c', `sched-rgn.c' and `sched-vis.c'.
  
     * Register allocation
  
--- 7257,7305 ----
       instructions, and conditional move instructions.  In the very last
       invocation after reload/LRA, it will generate predicated
       instructions when supported by the target.  The code is located in
!      'ifcvt.c'.
  
     * Web construction
  
       This pass splits independent uses of each pseudo-register.  This
       can improve effect of the other transformation, such as CSE or
!      register allocation.  The code for this pass is located in 'web.c'.
  
     * Instruction combination
  
       This pass attempts to combine groups of two or three instructions
       that are related by data flow into single instructions.  It
       combines the RTL expressions for the instructions by substitution,
!      simplifies the result using algebra, and then attempts to match the
!      result against the machine description.  The code is located in
!      'combine.c'.
  
     * Mode switching optimization
  
       This pass looks for instructions that require the processor to be
       in a specific "mode" and minimizes the number of mode changes
!      required to satisfy all users.  What these modes are, and what they
!      apply to are completely target-specific.  The code for this pass is
!      located in 'mode-switching.c'.
  
     * Modulo scheduling
  
       This pass looks at innermost loops and reorders their instructions
       by overlapping different iterations.  Modulo scheduling is
       performed immediately before instruction scheduling.  The code for
!      this pass is located in 'modulo-sched.c'.
  
     * Instruction scheduling
  
!      This pass looks for instructions whose output will not be available
!      by the time that it is used in subsequent instructions.  Memory
!      loads and floating point instructions often have this behavior on
!      RISC machines.  It re-orders instructions within a basic block to
!      try to separate the definition and use of items that otherwise
!      would cause pipeline stalls.  This pass is performed twice, before
!      and after register allocation.  The code for this pass is located
!      in 'haifa-sched.c', 'sched-deps.c', 'sched-ebb.c', 'sched-rgn.c'
!      and 'sched-vis.c'.
  
     * Register allocation
  
*************** passes that are run after the Tree optim
*** 7470,7480 ****
            regions using register pressure but the user can force it to
            use one region or regions corresponding to all loops.
  
!           Source files of the allocator are `ira.c', `ira-build.c',
!           `ira-costs.c', `ira-conflicts.c', `ira-color.c',
!           `ira-emit.c', `ira-lives', plus header files `ira.h' and
!           `ira-int.h' used for the communication between the allocator
!           and the rest of the compiler and between the IRA files.
  
          * Reloading.  This pass renumbers pseudo registers with the
            hardware registers numbers they were allocated.  Pseudo
--- 7323,7333 ----
            regions using register pressure but the user can force it to
            use one region or regions corresponding to all loops.
  
!           Source files of the allocator are 'ira.c', 'ira-build.c',
!           'ira-costs.c', 'ira-conflicts.c', 'ira-color.c', 'ira-emit.c',
!           'ira-lives', plus header files 'ira.h' and 'ira-int.h' used
!           for the communication between the allocator and the rest of
!           the compiler and between the IRA files.
  
          * Reloading.  This pass renumbers pseudo registers with the
            hardware registers numbers they were allocated.  Pseudo
*************** passes that are run after the Tree optim
*** 7482,7509 ****
            stack slots.  Then it finds instructions that are invalid
            because a value has failed to end up in a register, or has
            ended up in a register of the wrong kind.  It fixes up these
!           instructions by reloading the problematical values
!           temporarily into registers.  Additional instructions are
!           generated to do the copying.
  
            The reload pass also optionally eliminates the frame pointer
            and inserts instructions to save and restore call-clobbered
            registers around calls.
  
!           Source files are `reload.c' and `reload1.c', plus the header
!           `reload.h' used for communication between them.
  
          * This pass is a modern replacement of the reload pass.  Source
!           files are `lra.c', `lra-assign.c', `lra-coalesce.c',
!           `lra-constraints.c', `lra-eliminations.c', `lra-lives.c',
!           `lra-remat.c', `lra-spills.c', the header `lra-int.h' used
!           for communication between them, and the header `lra.h' used
!           for communication between LRA and the rest of compiler.
  
            Unlike the reload pass, intermediate LRA decisions are
!           reflected in RTL as much as possible.  This reduces the
!           number of target-dependent macros and hooks, leaving
!           instruction constraints as the primary source of control.
  
            LRA is run on targets for which TARGET_LRA_P returns true.
  
--- 7335,7362 ----
            stack slots.  Then it finds instructions that are invalid
            because a value has failed to end up in a register, or has
            ended up in a register of the wrong kind.  It fixes up these
!           instructions by reloading the problematical values temporarily
!           into registers.  Additional instructions are generated to do
!           the copying.
  
            The reload pass also optionally eliminates the frame pointer
            and inserts instructions to save and restore call-clobbered
            registers around calls.
  
!           Source files are 'reload.c' and 'reload1.c', plus the header
!           'reload.h' used for communication between them.
  
          * This pass is a modern replacement of the reload pass.  Source
!           files are 'lra.c', 'lra-assign.c', 'lra-coalesce.c',
!           'lra-constraints.c', 'lra-eliminations.c', 'lra-lives.c',
!           'lra-remat.c', 'lra-spills.c', the header 'lra-int.h' used for
!           communication between them, and the header 'lra.h' used for
!           communication between LRA and the rest of compiler.
  
            Unlike the reload pass, intermediate LRA decisions are
!           reflected in RTL as much as possible.  This reduces the number
!           of target-dependent macros and hooks, leaving instruction
!           constraints as the primary source of control.
  
            LRA is run on targets for which TARGET_LRA_P returns true.
  
*************** passes that are run after the Tree optim
*** 7513,7520 ****
       information is not available, various types of static analysis are
       performed to make the predictions normally coming from the profile
       feedback (IE execution frequency, branch probability, etc).  It is
!      implemented in the file `bb-reorder.c', and the various prediction
!      routines are in `predict.c'.
  
     * Variable tracking
  
--- 7366,7373 ----
       information is not available, various types of static analysis are
       performed to make the predictions normally coming from the profile
       feedback (IE execution frequency, branch probability, etc).  It is
!      implemented in the file 'bb-reorder.c', and the various prediction
!      routines are in 'predict.c'.
  
     * Variable tracking
  
*************** passes that are run after the Tree optim
*** 7522,7570 ****
       in code and generates notes describing the variable locations to
       RTL code.  The location lists are then generated according to these
       notes to debug information if the debugging information format
!      supports location lists.  The code is located in `var-tracking.c'.
  
     * Delayed branch scheduling
  
       This optional pass attempts to find instructions that can go into
       the delay slots of other instructions, usually jumps and calls.
!      The code for this pass is located in `reorg.c'.
  
     * Branch shortening
  
       On many RISC machines, branch instructions have a limited range.
       Thus, longer sequences of instructions must be used for long
!      branches.  In this pass, the compiler figures out what how far
!      each instruction will be from each other instruction, and
!      therefore whether the usual instructions, or the longer sequences,
!      must be used for each branch.  The code for this pass is located
!      in `final.c'.
  
     * Register-to-stack conversion
  
       Conversion from usage of some hard registers to usage of a register
       stack may be done at this point.  Currently, this is supported only
       for the floating-point registers of the Intel 80387 coprocessor.
!      The code for this pass is located in `reg-stack.c'.
  
     * Final
  
       This pass outputs the assembler code for the function.  The source
!      files are `final.c' plus `insn-output.c'; the latter is generated
!      automatically from the machine description by the tool `genoutput'.
!      The header file `conditions.h' is used for communication between
       these files.
  
     * Debugging information output
  
       This is run after final because it must output the stack slot
       offsets for pseudo registers that did not get hard registers.
!      Source files are `dbxout.c' for DBX symbol table format,
!      `sdbout.c' for SDB symbol table format, `dwarfout.c' for DWARF
!      symbol table format, files `dwarf2out.c' and `dwarf2asm.c' for
!      DWARF2 symbol table format, and `vmsdbgout.c' for VMS debug symbol
!      table format.
! 
  
  
  File: gccint.info,  Node: Optimization info,  Prev: RTL passes,  Up: Passes
--- 7375,7421 ----
       in code and generates notes describing the variable locations to
       RTL code.  The location lists are then generated according to these
       notes to debug information if the debugging information format
!      supports location lists.  The code is located in 'var-tracking.c'.
  
     * Delayed branch scheduling
  
       This optional pass attempts to find instructions that can go into
       the delay slots of other instructions, usually jumps and calls.
!      The code for this pass is located in 'reorg.c'.
  
     * Branch shortening
  
       On many RISC machines, branch instructions have a limited range.
       Thus, longer sequences of instructions must be used for long
!      branches.  In this pass, the compiler figures out what how far each
!      instruction will be from each other instruction, and therefore
!      whether the usual instructions, or the longer sequences, must be
!      used for each branch.  The code for this pass is located in
!      'final.c'.
  
     * Register-to-stack conversion
  
       Conversion from usage of some hard registers to usage of a register
       stack may be done at this point.  Currently, this is supported only
       for the floating-point registers of the Intel 80387 coprocessor.
!      The code for this pass is located in 'reg-stack.c'.
  
     * Final
  
       This pass outputs the assembler code for the function.  The source
!      files are 'final.c' plus 'insn-output.c'; the latter is generated
!      automatically from the machine description by the tool 'genoutput'.
!      The header file 'conditions.h' is used for communication between
       these files.
  
     * Debugging information output
  
       This is run after final because it must output the stack slot
       offsets for pseudo registers that did not get hard registers.
!      Source files are 'dbxout.c' for DBX symbol table format, 'sdbout.c'
!      for SDB symbol table format, 'dwarfout.c' for DWARF symbol table
!      format, files 'dwarf2out.c' and 'dwarf2asm.c' for DWARF2 symbol
!      table format, and 'vmsdbgout.c' for VMS debug symbol table format.
  
  
  File: gccint.info,  Node: Optimization info,  Prev: RTL passes,  Up: Passes
*************** File: gccint.info,  Node: Optimization i
*** 7573,7579 ****
  =====================
  
  This section is describes dump infrastructure which is common to both
! pass dumps as well as optimization dumps. The goal for this
  infrastructure is to provide both gcc developers and users detailed
  information about various compiler transformations and optimizations.
  
--- 7424,7430 ----
  =====================
  
  This section is describes dump infrastructure which is common to both
! pass dumps as well as optimization dumps.  The goal for this
  infrastructure is to provide both gcc developers and users detailed
  information about various compiler transformations and optimizations.
  
*************** File: gccint.info,  Node: Dump setup,  N
*** 7592,7615 ****
  9.7.1 Dump setup
  ----------------
  
! A dump_manager class is defined in `dumpfile.h'. Various passes
! register dumping pass-specific information via `dump_register' in
! `passes.c'. During the registration, an optimization pass can select
! its optimization group (*note Optimization groups::). After that
  optimization information corresponding to the entire group (presumably
! from multiple passes) can be output via command-line switches. Note
  that if a pass does not fit into any of the pre-defined groups, it can
! select `OPTGROUP_NONE'.
  
   Note that in general, a pass need not know its dump output file name,
! whether certain flags are enabled, etc. However, for legacy reasons,
! passes could also call `dump_begin' which returns a stream in case the
! particular pass has optimization dumps enabled. A pass could call
! `dump_end' when the dump has ended. These methods should go away once
  all the passes are converted to use the new dump infrastructure.
  
!  The recommended way to setup the dump output is via `dump_start' and
! `dump_end'.
  
  
  File: gccint.info,  Node: Optimization groups,  Next: Dump files and streams,  Prev: Dump setup,  Up: Optimization info
--- 7443,7466 ----
  9.7.1 Dump setup
  ----------------
  
! A dump_manager class is defined in 'dumpfile.h'.  Various passes
! register dumping pass-specific information via 'dump_register' in
! 'passes.c'.  During the registration, an optimization pass can select
! its optimization group (*note Optimization groups::).  After that
  optimization information corresponding to the entire group (presumably
! from multiple passes) can be output via command-line switches.  Note
  that if a pass does not fit into any of the pre-defined groups, it can
! select 'OPTGROUP_NONE'.
  
   Note that in general, a pass need not know its dump output file name,
! whether certain flags are enabled, etc.  However, for legacy reasons,
! passes could also call 'dump_begin' which returns a stream in case the
! particular pass has optimization dumps enabled.  A pass could call
! 'dump_end' when the dump has ended.  These methods should go away once
  all the passes are converted to use the new dump infrastructure.
  
!  The recommended way to setup the dump output is via 'dump_start' and
! 'dump_end'.
  
  
  File: gccint.info,  Node: Optimization groups,  Next: Dump files and streams,  Prev: Dump setup,  Up: Optimization info
*************** File: gccint.info,  Node: Optimization g
*** 7617,7647 ****
  9.7.2 Optimization groups
  -------------------------
  
! The optimization passes are grouped into several categories. Currently
! defined categories in `dumpfile.h' are
  
! `OPTGROUP_IPA'
!      IPA optimization passes. Enabled by `-ipa'
  
! `OPTGROUP_LOOP'
!      Loop optimization passes. Enabled by `-loop'.
  
! `OPTGROUP_INLINE'
!      Inlining passes. Enabled by `-inline'.
  
! `OPTGROUP_VEC'
!      Vectorization passes. Enabled by `-vec'.
  
! `OPTGROUP_OTHER'
       All other optimization passes which do not fall into one of the
       above.
  
! `OPTGROUP_ALL'
!      All optimization passes. Enabled by `-all'.
! 
  
   By using groups a user could selectively enable optimization
! information only for a group of passes. By default, the optimization
  information for all the passes is dumped.
  
  
--- 7468,7497 ----
  9.7.2 Optimization groups
  -------------------------
  
! The optimization passes are grouped into several categories.  Currently
! defined categories in 'dumpfile.h' are
  
! 'OPTGROUP_IPA'
!      IPA optimization passes.  Enabled by '-ipa'
  
! 'OPTGROUP_LOOP'
!      Loop optimization passes.  Enabled by '-loop'.
  
! 'OPTGROUP_INLINE'
!      Inlining passes.  Enabled by '-inline'.
  
! 'OPTGROUP_VEC'
!      Vectorization passes.  Enabled by '-vec'.
  
! 'OPTGROUP_OTHER'
       All other optimization passes which do not fall into one of the
       above.
  
! 'OPTGROUP_ALL'
!      All optimization passes.  Enabled by '-all'.
  
   By using groups a user could selectively enable optimization
! information only for a group of passes.  By default, the optimization
  information for all the passes is dumped.
  
  
*************** File: gccint.info,  Node: Dump files and
*** 7651,7674 ****
  ----------------------------
  
  There are two separate output streams available for outputting
! optimization information from passes. Note that both these streams
! accept `stderr' and `stdout' as valid streams and thus it is possible
! to dump output to standard output or error. This is specially handy for
  outputting all available information in a single file by redirecting
! `stderr'.
  
! ``pstream''
!      This stream is for pass-specific dump output. For example,
!      `-fdump-tree-vect=foo.v' dumps tree vectorization pass output into
!      the given file name `foo.v'. If the file name is not provided, the
!      default file name is based on the source file and pass number. Note
!      that one could also use special file names `stdout' and `stderr'
!      for dumping to standard output and standard error respectively.
  
! ``alt_stream''
       This steam is used for printing optimization specific output in
!      response to the `-fopt-info'. Again a file name can be given. If
!      the file name is not given, it defaults to `stderr'.
  
  
  File: gccint.info,  Node: Dump output verbosity,  Next: Dump types,  Prev: Dump files and streams,  Up: Optimization info
--- 7501,7525 ----
  ----------------------------
  
  There are two separate output streams available for outputting
! optimization information from passes.  Note that both these streams
! accept 'stderr' and 'stdout' as valid streams and thus it is possible to
! dump output to standard output or error.  This is specially handy for
  outputting all available information in a single file by redirecting
! 'stderr'.
  
! 'pstream'
!      This stream is for pass-specific dump output.  For example,
!      '-fdump-tree-vect=foo.v' dumps tree vectorization pass output into
!      the given file name 'foo.v'.  If the file name is not provided, the
!      default file name is based on the source file and pass number.
!      Note that one could also use special file names 'stdout' and
!      'stderr' for dumping to standard output and standard error
!      respectively.
  
! 'alt_stream'
       This steam is used for printing optimization specific output in
!      response to the '-fopt-info'.  Again a file name can be given.  If
!      the file name is not given, it defaults to 'stderr'.
  
  
  File: gccint.info,  Node: Dump output verbosity,  Next: Dump types,  Prev: Dump files and streams,  Up: Optimization info
*************** File: gccint.info,  Node: Dump output ve
*** 7678,7704 ****
  
  The dump verbosity has the following options
  
! `optimized'
!      Print information when an optimization is successfully applied. It
!      is up to a pass to decide which information is relevant. For
       example, the vectorizer passes print the source location of loops
       which got successfully vectorized.
  
! `missed'
!      Print information about missed optimizations. Individual passes
!      control which information to include in the output. For example,
  
            gcc -O2 -ftree-vectorize -fopt-info-vec-missed
  
       will print information about missed optimization opportunities from
       vectorization passes on stderr.
  
! `note'
       Print verbose information about optimizations, such as certain
       transformations, more detailed messages about decisions etc.
  
! `all'
!      Print detailed optimization information. This includes OPTIMIZED,
       MISSED, and NOTE.
  
  
--- 7529,7555 ----
  
  The dump verbosity has the following options
  
! 'optimized'
!      Print information when an optimization is successfully applied.  It
!      is up to a pass to decide which information is relevant.  For
       example, the vectorizer passes print the source location of loops
       which got successfully vectorized.
  
! 'missed'
!      Print information about missed optimizations.  Individual passes
!      control which information to include in the output.  For example,
  
            gcc -O2 -ftree-vectorize -fopt-info-vec-missed
  
       will print information about missed optimization opportunities from
       vectorization passes on stderr.
  
! 'note'
       Print verbose information about optimizations, such as certain
       transformations, more detailed messages about decisions etc.
  
! 'all'
!      Print detailed optimization information.  This includes OPTIMIZED,
       MISSED, and NOTE.
  
  
*************** File: gccint.info,  Node: Dump types,  N
*** 7707,7750 ****
  9.7.5 Dump types
  ----------------
  
! `dump_printf'
!      This is a generic method for doing formatted output. It takes an
!      additional argument `dump_kind' which signifies the type of dump.
!      This method outputs information only when the dumps are enabled
!      for this particular `dump_kind'. Note that the caller doesn't need
!      to know if the particular dump is enabled or not, or even the file
!      name. The caller only needs to decide which dump output
!      information is relevant, and under what conditions. This determines
!      the associated flags.
  
!      Consider the following example from `loop-unroll.c' where an
       informative message about a loop (along with its location) is
       printed when any of the following flags is enabled
-         - optimization messages
  
          - RTL dumps
- 
          - detailed dumps
  
- 
            int report_flags = MSG_OPTIMIZED_LOCATIONS | TDF_RTL | TDF_DETAILS;
            dump_printf_loc (report_flags, locus,
                             "loop turned into non-loop; it never loops.\n");
  
! `dump_basic_block'
       Output basic block.
! 
! `dump_generic_expr'
       Output generic expression.
! 
! `dump_gimple_stmt'
       Output gimple statement.
  
       Note that the above methods also have variants prefixed with
!      `_loc', such as `dump_printf_loc', which are similar except they
       also output the source location information.
  
- 
  
  File: gccint.info,  Node: Dump examples,  Prev: Dump types,  Up: Optimization info
  
--- 7558,7597 ----
  9.7.5 Dump types
  ----------------
  
! 'dump_printf'
  
!      This is a generic method for doing formatted output.  It takes an
!      additional argument 'dump_kind' which signifies the type of dump.
!      This method outputs information only when the dumps are enabled for
!      this particular 'dump_kind'.  Note that the caller doesn't need to
!      know if the particular dump is enabled or not, or even the file
!      name.  The caller only needs to decide which dump output
!      information is relevant, and under what conditions.  This
!      determines the associated flags.
! 
!      Consider the following example from 'loop-unroll.c' where an
       informative message about a loop (along with its location) is
       printed when any of the following flags is enabled
  
+         - optimization messages
          - RTL dumps
          - detailed dumps
  
            int report_flags = MSG_OPTIMIZED_LOCATIONS | TDF_RTL | TDF_DETAILS;
            dump_printf_loc (report_flags, locus,
                             "loop turned into non-loop; it never loops.\n");
  
! 'dump_basic_block'
       Output basic block.
! 'dump_generic_expr'
       Output generic expression.
! 'dump_gimple_stmt'
       Output gimple statement.
  
       Note that the above methods also have variants prefixed with
!      '_loc', such as 'dump_printf_loc', which are similar except they
       also output the source location information.
  
  
  File: gccint.info,  Node: Dump examples,  Prev: Dump types,  Up: Optimization info
  
*************** File: gccint.info,  Node: Dump examples,
*** 7754,7787 ****
       gcc -O3 -fopt-info-missed=missed.all
  
   outputs missed optimization report from all the passes into
! `missed.all'.
  
   As another example,
       gcc -O3 -fopt-info-inline-optimized-missed=inline.txt
  
!  will output information about missed optimizations as well as
! optimized locations from all the inlining passes into `inline.txt'.
  
   If the FILENAME is provided, then the dumps from all the applicable
! optimizations are concatenated into the `filename'.  Otherwise the dump
! is output onto `stderr'. If OPTIONS is omitted, it defaults to
! `all-all', which means dump all available optimization info from all
! the passes. In the following example, all optimization info is output
! on to `stderr'.
  
       gcc -O3 -fopt-info
  
!  Note that `-fopt-info-vec-missed' behaves the same as
! `-fopt-info-missed-vec'.
  
   As another example, consider
  
       gcc -fopt-info-vec-missed=vec.miss -fopt-info-loop-optimized=loop.opt
  
!  Here the two output file names `vec.miss' and `loop.opt' are in
! conflict since only one output file is allowed. In this case, only the
! first option takes effect and the subsequent options are ignored. Thus
! only the `vec.miss' is produced which containts dumps from the
  vectorizer about missed opportunities.
  
  
--- 7601,7634 ----
       gcc -O3 -fopt-info-missed=missed.all
  
   outputs missed optimization report from all the passes into
! 'missed.all'.
  
   As another example,
       gcc -O3 -fopt-info-inline-optimized-missed=inline.txt
  
!  will output information about missed optimizations as well as optimized
! locations from all the inlining passes into 'inline.txt'.
  
   If the FILENAME is provided, then the dumps from all the applicable
! optimizations are concatenated into the 'filename'.  Otherwise the dump
! is output onto 'stderr'.  If OPTIONS is omitted, it defaults to
! 'all-all', which means dump all available optimization info from all the
! passes.  In the following example, all optimization info is output on to
! 'stderr'.
  
       gcc -O3 -fopt-info
  
!  Note that '-fopt-info-vec-missed' behaves the same as
! '-fopt-info-missed-vec'.
  
   As another example, consider
  
       gcc -fopt-info-vec-missed=vec.miss -fopt-info-loop-optimized=loop.opt
  
!  Here the two output file names 'vec.miss' and 'loop.opt' are in
! conflict since only one output file is allowed.  In this case, only the
! first option takes effect and the subsequent options are ignored.  Thus
! only the 'vec.miss' is produced which containts dumps from the
  vectorizer about missed opportunities.
  
  
*************** The purpose of GENERIC is simply to prov
*** 7794,7819 ****
  of representing an entire function in trees.  To this end, it was
  necessary to add a few new tree codes to the back end, but almost
  everything was already there.  If you can express it with the codes in
! `gcc/tree.def', it's GENERIC.
  
   Early on, there was a great deal of debate about how to think about
  statements in a tree IL.  In GENERIC, a statement is defined as any
  expression whose value, if any, is ignored.  A statement will always
! have `TREE_SIDE_EFFECTS' set (or it will be discarded), but a
! non-statement expression may also have side effects.  A `CALL_EXPR',
! for instance.
  
   It would be possible for some local optimizations to work on the
  GENERIC form of a function; indeed, the adapted tree inliner works fine
! on GENERIC, but the current compiler performs inlining after lowering
! to GIMPLE (a restricted form described in the next section). Indeed,
  currently the frontends perform this lowering before handing off to
! `tree_rest_of_compilation', but this seems inelegant.
  
  * Menu:
  
  * Deficiencies::                Topics net yet covered in this document.
! * Tree overview::               All about `tree's.
  * Types::                       Fundamental and aggregate types.
  * Declarations::                Type declarations and variables.
  * Attributes::                  Declaration and type attributes.
--- 7641,7666 ----
  of representing an entire function in trees.  To this end, it was
  necessary to add a few new tree codes to the back end, but almost
  everything was already there.  If you can express it with the codes in
! 'gcc/tree.def', it's GENERIC.
  
   Early on, there was a great deal of debate about how to think about
  statements in a tree IL.  In GENERIC, a statement is defined as any
  expression whose value, if any, is ignored.  A statement will always
! have 'TREE_SIDE_EFFECTS' set (or it will be discarded), but a
! non-statement expression may also have side effects.  A 'CALL_EXPR', for
! instance.
  
   It would be possible for some local optimizations to work on the
  GENERIC form of a function; indeed, the adapted tree inliner works fine
! on GENERIC, but the current compiler performs inlining after lowering to
! GIMPLE (a restricted form described in the next section).  Indeed,
  currently the frontends perform this lowering before handing off to
! 'tree_rest_of_compilation', but this seems inelegant.
  
  * Menu:
  
  * Deficiencies::                Topics net yet covered in this document.
! * Tree overview::               All about 'tree's.
  * Types::                       Fundamental and aggregate types.
  * Declarations::                Type declarations and variables.
  * Attributes::                  Declaration and type attributes.
*************** File: gccint.info,  Node: Tree overview,
*** 7840,7877 ****
  =============
  
  The central data structure used by the internal representation is the
! `tree'.  These nodes, while all of the C type `tree', are of many
! varieties.  A `tree' is a pointer type, but the object to which it
  points may be of a variety of types.  From this point forward, we will
! refer to trees in ordinary type, rather than in `this font', except
! when talking about the actual C type `tree'.
  
   You can tell what kind of node a particular tree is by using the
! `TREE_CODE' macro.  Many, many macros take trees as input and return
  trees as output.  However, most macros require a certain kind of tree
! node as input.  In other words, there is a type-system for trees, but
! it is not reflected in the C type-system.
  
!  For safety, it is useful to configure GCC with `--enable-checking'.
  Although this results in a significant performance penalty (since all
  tree types are checked at run-time), and is therefore inappropriate in a
  release version, it is extremely helpful during the development process.
  
   Many macros behave as predicates.  Many, although not all, of these
! predicates end in `_P'.  Do not rely on the result type of these macros
  being of any particular type.  You may, however, rely on the fact that
! the type can be compared to `0', so that statements like
       if (TEST_P (t) && !TEST_P (y))
         x = 1;
!  and
       int i = (TEST_P (t) != 0);
!  are legal.  Macros that return `int' values now may be changed to
! return `tree' values, or other pointers in the future.  Even those that
! continue to return `int' may return multiple nonzero codes where
  previously they returned only zero and one.  Therefore, you should not
  write code like
       if (TEST_P (t) == 1)
!  as this code is not guaranteed to work correctly in the future.
  
   You should not take the address of values returned by the macros or
  functions described here.  In particular, no guarantee is given that the
--- 7687,7724 ----
  =============
  
  The central data structure used by the internal representation is the
! 'tree'.  These nodes, while all of the C type 'tree', are of many
! varieties.  A 'tree' is a pointer type, but the object to which it
  points may be of a variety of types.  From this point forward, we will
! refer to trees in ordinary type, rather than in 'this font', except when
! talking about the actual C type 'tree'.
  
   You can tell what kind of node a particular tree is by using the
! 'TREE_CODE' macro.  Many, many macros take trees as input and return
  trees as output.  However, most macros require a certain kind of tree
! node as input.  In other words, there is a type-system for trees, but it
! is not reflected in the C type-system.
  
!  For safety, it is useful to configure GCC with '--enable-checking'.
  Although this results in a significant performance penalty (since all
  tree types are checked at run-time), and is therefore inappropriate in a
  release version, it is extremely helpful during the development process.
  
   Many macros behave as predicates.  Many, although not all, of these
! predicates end in '_P'.  Do not rely on the result type of these macros
  being of any particular type.  You may, however, rely on the fact that
! the type can be compared to '0', so that statements like
       if (TEST_P (t) && !TEST_P (y))
         x = 1;
! and
       int i = (TEST_P (t) != 0);
! are legal.  Macros that return 'int' values now may be changed to return
! 'tree' values, or other pointers in the future.  Even those that
! continue to return 'int' may return multiple nonzero codes where
  previously they returned only zero and one.  Therefore, you should not
  write code like
       if (TEST_P (t) == 1)
! as this code is not guaranteed to work correctly in the future.
  
   You should not take the address of values returned by the macros or
  functions described here.  In particular, no guarantee is given that the
*************** made up entirely of uppercase letters ma
*** 7884,7908 ****
  than once.  You may assume that a macro or function whose name is made
  up entirely of lowercase letters will evaluate its arguments only once.
  
!  The `error_mark_node' is a special tree.  Its tree code is
! `ERROR_MARK', but since there is only ever one node with that code, the
! usual practice is to compare the tree against `error_mark_node'.  (This
  test is just a test for pointer equality.)  If an error has occurred
! during front-end processing the flag `errorcount' will be set.  If the
! front end has encountered code it cannot handle, it will issue a
! message to the user and set `sorrycount'.  When these flags are set,
! any macro or function which normally returns a tree of a particular
! kind may instead return the `error_mark_node'.  Thus, if you intend to
! do any processing of erroneous code, you must be prepared to deal with
! the `error_mark_node'.
  
   Occasionally, a particular tree slot (like an operand to an expression,
! or a particular field in a declaration) will be referred to as
! "reserved for the back end".  These slots are used to store RTL when
! the tree is converted to RTL for use by the GCC back end.  However, if
! that process is not taking place (e.g., if the front end is being hooked
! up to an intelligent editor), then those slots may be used by the back
! end presently in use.
  
   If you encounter situations that do not match this documentation, such
  as tree nodes of types not mentioned here, or macros documented to
--- 7731,7755 ----
  than once.  You may assume that a macro or function whose name is made
  up entirely of lowercase letters will evaluate its arguments only once.
  
!  The 'error_mark_node' is a special tree.  Its tree code is
! 'ERROR_MARK', but since there is only ever one node with that code, the
! usual practice is to compare the tree against 'error_mark_node'.  (This
  test is just a test for pointer equality.)  If an error has occurred
! during front-end processing the flag 'errorcount' will be set.  If the
! front end has encountered code it cannot handle, it will issue a message
! to the user and set 'sorrycount'.  When these flags are set, any macro
! or function which normally returns a tree of a particular kind may
! instead return the 'error_mark_node'.  Thus, if you intend to do any
! processing of erroneous code, you must be prepared to deal with the
! 'error_mark_node'.
  
   Occasionally, a particular tree slot (like an operand to an expression,
! or a particular field in a declaration) will be referred to as "reserved
! for the back end".  These slots are used to store RTL when the tree is
! converted to RTL for use by the GCC back end.  However, if that process
! is not taking place (e.g., if the front end is being hooked up to an
! intelligent editor), then those slots may be used by the back end
! presently in use.
  
   If you encounter situations that do not match this documentation, such
  as tree nodes of types not mentioned here, or macros documented to
*************** File: gccint.info,  Node: Macros and Fun
*** 7922,7991 ****
  10.2.1 Trees
  ------------
  
! All GENERIC trees have two fields in common.  First, `TREE_CHAIN' is a
  pointer that can be used as a singly-linked list to other trees.  The
! other is `TREE_TYPE'.  Many trees store the type of an expression or
  declaration in this field.
  
   These are some other functions for handling trees:
  
! `tree_size'
       Return the number of bytes a tree takes.
  
! `build0'
! `build1'
! `build2'
! `build3'
! `build4'
! `build5'
! `build6'
       These functions build a tree and supply values to put in each
!      parameter.  The basic signature is `code, type, [operands]'.
!      `code' is the `TREE_CODE', and `type' is a tree representing the
!      `TREE_TYPE'.  These are followed by the operands, each of which is
       also a tree.
  
- 
  
  File: gccint.info,  Node: Identifiers,  Next: Containers,  Prev: Macros and Functions,  Up: Tree overview
  
  10.2.2 Identifiers
  ------------------
  
! An `IDENTIFIER_NODE' represents a slightly more general concept than
! the standard C or C++ concept of identifier.  In particular, an
! `IDENTIFIER_NODE' may contain a `$', or other extraordinary characters.
  
!  There are never two distinct `IDENTIFIER_NODE's representing the same
  identifier.  Therefore, you may use pointer equality to compare
! `IDENTIFIER_NODE's, rather than using a routine like `strcmp'.  Use
! `get_identifier' to obtain the unique `IDENTIFIER_NODE' for a supplied
  string.
  
   You can use the following macros to access identifiers:
! `IDENTIFIER_POINTER'
!      The string represented by the identifier, represented as a
!      `char*'.  This string is always `NUL'-terminated, and contains no
!      embedded `NUL' characters.
  
! `IDENTIFIER_LENGTH'
!      The length of the string returned by `IDENTIFIER_POINTER', not
!      including the trailing `NUL'.  This value of `IDENTIFIER_LENGTH
!      (x)' is always the same as `strlen (IDENTIFIER_POINTER (x))'.
  
! `IDENTIFIER_OPNAME_P'
       This predicate holds if the identifier represents the name of an
       overloaded operator.  In this case, you should not depend on the
!      contents of either the `IDENTIFIER_POINTER' or the
!      `IDENTIFIER_LENGTH'.
  
! `IDENTIFIER_TYPENAME_P'
       This predicate holds if the identifier represents the name of a
!      user-defined conversion operator.  In this case, the `TREE_TYPE' of
!      the `IDENTIFIER_NODE' holds the type to which the conversion
       operator converts.
  
- 
  
  File: gccint.info,  Node: Containers,  Prev: Identifiers,  Up: Tree overview
  
--- 7769,7837 ----
  10.2.1 Trees
  ------------
  
! All GENERIC trees have two fields in common.  First, 'TREE_CHAIN' is a
  pointer that can be used as a singly-linked list to other trees.  The
! other is 'TREE_TYPE'.  Many trees store the type of an expression or
  declaration in this field.
  
   These are some other functions for handling trees:
  
! 'tree_size'
       Return the number of bytes a tree takes.
  
! 'build0'
! 'build1'
! 'build2'
! 'build3'
! 'build4'
! 'build5'
! 'build6'
! 
       These functions build a tree and supply values to put in each
!      parameter.  The basic signature is 'code, type, [operands]'.
!      'code' is the 'TREE_CODE', and 'type' is a tree representing the
!      'TREE_TYPE'.  These are followed by the operands, each of which is
       also a tree.
  
  
  File: gccint.info,  Node: Identifiers,  Next: Containers,  Prev: Macros and Functions,  Up: Tree overview
  
  10.2.2 Identifiers
  ------------------
  
! An 'IDENTIFIER_NODE' represents a slightly more general concept than the
! standard C or C++ concept of identifier.  In particular, an
! 'IDENTIFIER_NODE' may contain a '$', or other extraordinary characters.
  
!  There are never two distinct 'IDENTIFIER_NODE's representing the same
  identifier.  Therefore, you may use pointer equality to compare
! 'IDENTIFIER_NODE's, rather than using a routine like 'strcmp'.  Use
! 'get_identifier' to obtain the unique 'IDENTIFIER_NODE' for a supplied
  string.
  
   You can use the following macros to access identifiers:
! 'IDENTIFIER_POINTER'
!      The string represented by the identifier, represented as a 'char*'.
!      This string is always 'NUL'-terminated, and contains no embedded
!      'NUL' characters.
  
! 'IDENTIFIER_LENGTH'
!      The length of the string returned by 'IDENTIFIER_POINTER', not
!      including the trailing 'NUL'.  This value of 'IDENTIFIER_LENGTH
!      (x)' is always the same as 'strlen (IDENTIFIER_POINTER (x))'.
  
! 'IDENTIFIER_OPNAME_P'
       This predicate holds if the identifier represents the name of an
       overloaded operator.  In this case, you should not depend on the
!      contents of either the 'IDENTIFIER_POINTER' or the
!      'IDENTIFIER_LENGTH'.
  
! 'IDENTIFIER_TYPENAME_P'
       This predicate holds if the identifier represents the name of a
!      user-defined conversion operator.  In this case, the 'TREE_TYPE' of
!      the 'IDENTIFIER_NODE' holds the type to which the conversion
       operator converts.
  
  
  File: gccint.info,  Node: Containers,  Prev: Identifiers,  Up: Tree overview
  
*************** File: gccint.info,  Node: Containers,  P
*** 7993,8014 ****
  -----------------
  
  Two common container data structures can be represented directly with
! tree nodes.  A `TREE_LIST' is a singly linked list containing two trees
! per node.  These are the `TREE_PURPOSE' and `TREE_VALUE' of each node.
! (Often, the `TREE_PURPOSE' contains some kind of tag, or additional
! information, while the `TREE_VALUE' contains the majority of the
! payload.  In other cases, the `TREE_PURPOSE' is simply `NULL_TREE',
! while in still others both the `TREE_PURPOSE' and `TREE_VALUE' are of
! equal stature.)  Given one `TREE_LIST' node, the next node is found by
! following the `TREE_CHAIN'.  If the `TREE_CHAIN' is `NULL_TREE', then
  you have reached the end of the list.
  
!  A `TREE_VEC' is a simple vector.  The `TREE_VEC_LENGTH' is an integer
  (not a tree) giving the number of nodes in the vector.  The nodes
! themselves are accessed using the `TREE_VEC_ELT' macro, which takes two
! arguments.  The first is the `TREE_VEC' in question; the second is an
! integer indicating which element in the vector is desired.  The
! elements are indexed from zero.
  
  
  File: gccint.info,  Node: Types,  Next: Declarations,  Prev: Tree overview,  Up: GENERIC
--- 7839,7860 ----
  -----------------
  
  Two common container data structures can be represented directly with
! tree nodes.  A 'TREE_LIST' is a singly linked list containing two trees
! per node.  These are the 'TREE_PURPOSE' and 'TREE_VALUE' of each node.
! (Often, the 'TREE_PURPOSE' contains some kind of tag, or additional
! information, while the 'TREE_VALUE' contains the majority of the
! payload.  In other cases, the 'TREE_PURPOSE' is simply 'NULL_TREE',
! while in still others both the 'TREE_PURPOSE' and 'TREE_VALUE' are of
! equal stature.)  Given one 'TREE_LIST' node, the next node is found by
! following the 'TREE_CHAIN'.  If the 'TREE_CHAIN' is 'NULL_TREE', then
  you have reached the end of the list.
  
!  A 'TREE_VEC' is a simple vector.  The 'TREE_VEC_LENGTH' is an integer
  (not a tree) giving the number of nodes in the vector.  The nodes
! themselves are accessed using the 'TREE_VEC_ELT' macro, which takes two
! arguments.  The first is the 'TREE_VEC' in question; the second is an
! integer indicating which element in the vector is desired.  The elements
! are indexed from zero.
  
  
  File: gccint.info,  Node: Types,  Next: Declarations,  Prev: Tree overview,  Up: GENERIC
*************** that there is exactly one tree node corr
*** 8021,8272 ****
  are often multiple nodes corresponding to the same type.
  
   For the most part, different kinds of types have different tree codes.
! (For example, pointer types use a `POINTER_TYPE' code while arrays use
! an `ARRAY_TYPE' code.)  However, pointers to member functions use the
! `RECORD_TYPE' code.  Therefore, when writing a `switch' statement that
  depends on the code associated with a particular type, you should take
! care to handle pointers to member functions under the `RECORD_TYPE'
! case label.
  
   The following functions and macros deal with cv-qualification of types:
! `TYPE_MAIN_VARIANT'
       This macro returns the unqualified version of a type.  It may be
       applied to an unqualified type, but it is not always the identity
       function in that case.
  
   A few other macros and functions are usable with all types:
! `TYPE_SIZE'
       The number of bits required to represent the type, represented as
!      an `INTEGER_CST'.  For an incomplete type, `TYPE_SIZE' will be
!      `NULL_TREE'.
  
! `TYPE_ALIGN'
!      The alignment of the type, in bits, represented as an `int'.
  
! `TYPE_NAME'
!      This macro returns a declaration (in the form of a `TYPE_DECL') for
!      the type.  (Note this macro does _not_ return an
!      `IDENTIFIER_NODE', as you might expect, given its name!)  You can
!      look at the `DECL_NAME' of the `TYPE_DECL' to obtain the actual
!      name of the type.  The `TYPE_NAME' will be `NULL_TREE' for a type
!      that is not a built-in type, the result of a typedef, or a named
!      class type.
  
! `TYPE_CANONICAL'
       This macro returns the "canonical" type for the given type node.
       Canonical types are used to improve performance in the C++ and
       Objective-C++ front ends by allowing efficient comparison between
!      two type nodes in `same_type_p': if the `TYPE_CANONICAL' values of
       the types are equal, the types are equivalent; otherwise, the types
!      are not equivalent. The notion of equivalence for canonical types
       is the same as the notion of type equivalence in the language
!      itself. For instance,
  
!      When `TYPE_CANONICAL' is `NULL_TREE', there is no canonical type
!      for the given type node. In this case, comparison between this
       type and any other type requires the compiler to perform a deep,
       "structural" comparison to see if the two type nodes have the same
       form and properties.
  
       The canonical type for a node is always the most fundamental type
!      in the equivalence class of types. For instance, `int' is its own
!      canonical type. A typedef `I' of `int' will have `int' as its
!      canonical type. Similarly, `I*' and a typedef `IP' (defined to
!      `I*') will has `int*' as their canonical type. When building a new
!      type node, be sure to set `TYPE_CANONICAL' to the appropriate
!      canonical type. If the new type is a compound type (built from
       other types), and any of those other types require structural
!      equality, use `SET_TYPE_STRUCTURAL_EQUALITY' to ensure that the
!      new type also requires structural equality. Finally, if for some
!      reason you cannot guarantee that `TYPE_CANONICAL' will point to
!      the canonical type, use `SET_TYPE_STRUCTURAL_EQUALITY' to make
!      sure that the new type-and any type constructed based on
!      it-requires structural equality. If you suspect that the canonical
!      type system is miscomparing types, pass `--param
!      verify-canonical-types=1' to the compiler or configure with
!      `--enable-checking' to force the compiler to verify its
!      canonical-type comparisons against the structural comparisons; the
!      compiler will then print any warnings if the canonical types
!      miscompare.
  
! `TYPE_STRUCTURAL_EQUALITY_P'
       This predicate holds when the node requires structural equality
!      checks, e.g., when `TYPE_CANONICAL' is `NULL_TREE'.
  
! `SET_TYPE_STRUCTURAL_EQUALITY'
       This macro states that the type node it is given requires
!      structural equality checks, e.g., it sets `TYPE_CANONICAL' to
!      `NULL_TREE'.
  
! `same_type_p'
       This predicate takes two types as input, and holds if they are the
!      same type.  For example, if one type is a `typedef' for the other,
!      or both are `typedef's for the same type.  This predicate also
       holds if the two trees given as input are simply copies of one
       another; i.e., there is no difference between them at the source
       level, but, for whatever reason, a duplicate has been made in the
!      representation.  You should never use `==' (pointer equality) to
!      compare types; always use `same_type_p' instead.
  
   Detailed below are the various kinds of types, and the macros that can
  be used to access them.  Although other kinds of types are used
  elsewhere in G++, the types described here are the only ones that you
  will encounter while examining the intermediate representation.
  
! `VOID_TYPE'
!      Used to represent the `void' type.
  
! `INTEGER_TYPE'
!      Used to represent the various integral types, including `char',
!      `short', `int', `long', and `long long'.  This code is not used
!      for enumeration types, nor for the `bool' type.  The
!      `TYPE_PRECISION' is the number of bits used in the representation,
!      represented as an `unsigned int'.  (Note that in the general case
!      this is not the same value as `TYPE_SIZE'; suppose that there were
!      a 24-bit integer type, but that alignment requirements for the ABI
!      required 32-bit alignment.  Then, `TYPE_SIZE' would be an
!      `INTEGER_CST' for 32, while `TYPE_PRECISION' would be 24.)  The
!      integer type is unsigned if `TYPE_UNSIGNED' holds; otherwise, it
!      is signed.
  
!      The `TYPE_MIN_VALUE' is an `INTEGER_CST' for the smallest integer
       that may be represented by this type.  Similarly, the
!      `TYPE_MAX_VALUE' is an `INTEGER_CST' for the largest integer that
       may be represented by this type.
  
! `REAL_TYPE'
!      Used to represent the `float', `double', and `long double' types.
!      The number of bits in the floating-point representation is given
!      by `TYPE_PRECISION', as in the `INTEGER_TYPE' case.
  
! `FIXED_POINT_TYPE'
!      Used to represent the `short _Fract', `_Fract', `long _Fract',
!      `long long _Fract', `short _Accum', `_Accum', `long _Accum', and
!      `long long _Accum' types.  The number of bits in the fixed-point
!      representation is given by `TYPE_PRECISION', as in the
!      `INTEGER_TYPE' case.  There may be padding bits, fractional bits
       and integral bits.  The number of fractional bits is given by
!      `TYPE_FBIT', and the number of integral bits is given by
!      `TYPE_IBIT'.  The fixed-point type is unsigned if `TYPE_UNSIGNED'
!      holds; otherwise, it is signed.  The fixed-point type is
!      saturating if `TYPE_SATURATING' holds; otherwise, it is not
!      saturating.
  
! `COMPLEX_TYPE'
!      Used to represent GCC built-in `__complex__' data types.  The
!      `TREE_TYPE' is the type of the real and imaginary parts.
  
! `ENUMERAL_TYPE'
!      Used to represent an enumeration type.  The `TYPE_PRECISION' gives
!      (as an `int'), the number of bits used to represent the type.  If
!      there are no negative enumeration constants, `TYPE_UNSIGNED' will
       hold.  The minimum and maximum enumeration constants may be
!      obtained with `TYPE_MIN_VALUE' and `TYPE_MAX_VALUE', respectively;
!      each of these macros returns an `INTEGER_CST'.
  
       The actual enumeration constants themselves may be obtained by
!      looking at the `TYPE_VALUES'.  This macro will return a
!      `TREE_LIST', containing the constants.  The `TREE_PURPOSE' of each
!      node will be an `IDENTIFIER_NODE' giving the name of the constant;
!      the `TREE_VALUE' will be an `INTEGER_CST' giving the value
!      assigned to that constant.  These constants will appear in the
!      order in which they were declared.  The `TREE_TYPE' of each of
!      these constants will be the type of enumeration type itself.
  
! `BOOLEAN_TYPE'
!      Used to represent the `bool' type.
  
! `POINTER_TYPE'
       Used to represent pointer types, and pointer to data member types.
!      The `TREE_TYPE' gives the type to which this type points.
  
! `REFERENCE_TYPE'
!      Used to represent reference types.  The `TREE_TYPE' gives the type
       to which this type refers.
  
! `FUNCTION_TYPE'
       Used to represent the type of non-member functions and of static
!      member functions.  The `TREE_TYPE' gives the return type of the
!      function.  The `TYPE_ARG_TYPES' are a `TREE_LIST' of the argument
!      types.  The `TREE_VALUE' of each node in this list is the type of
!      the corresponding argument; the `TREE_PURPOSE' is an expression
!      for the default argument value, if any.  If the last node in the
!      list is `void_list_node' (a `TREE_LIST' node whose `TREE_VALUE' is
!      the `void_type_node'), then functions of this type do not take
!      variable arguments.  Otherwise, they do take a variable number of
!      arguments.
  
!      Note that in C (but not in C++) a function declared like `void f()'
       is an unprototyped function taking a variable number of arguments;
!      the `TYPE_ARG_TYPES' of such a function will be `NULL'.
  
! `METHOD_TYPE'
       Used to represent the type of a non-static member function.  Like a
!      `FUNCTION_TYPE', the return type is given by the `TREE_TYPE'.  The
!      type of `*this', i.e., the class of which functions of this type
!      are a member, is given by the `TYPE_METHOD_BASETYPE'.  The
!      `TYPE_ARG_TYPES' is the parameter list, as for a `FUNCTION_TYPE',
!      and includes the `this' argument.
  
! `ARRAY_TYPE'
!      Used to represent array types.  The `TREE_TYPE' gives the type of
       the elements in the array.  If the array-bound is present in the
!      type, the `TYPE_DOMAIN' is an `INTEGER_TYPE' whose
!      `TYPE_MIN_VALUE' and `TYPE_MAX_VALUE' will be the lower and upper
!      bounds of the array, respectively.  The `TYPE_MIN_VALUE' will
!      always be an `INTEGER_CST' for zero, while the `TYPE_MAX_VALUE'
!      will be one less than the number of elements in the array, i.e.,
!      the highest value which may be used to index an element in the
!      array.
  
! `RECORD_TYPE'
!      Used to represent `struct' and `class' types, as well as pointers
       to member functions and similar constructs in other languages.
!      `TYPE_FIELDS' contains the items contained in this type, each of
!      which can be a `FIELD_DECL', `VAR_DECL', `CONST_DECL', or
!      `TYPE_DECL'.  You may not make any assumptions about the ordering
       of the fields in the type or whether one or more of them overlap.
  
! `UNION_TYPE'
!      Used to represent `union' types.  Similar to `RECORD_TYPE' except
!      that all `FIELD_DECL' nodes in `TYPE_FIELD' start at bit position
       zero.
  
! `QUAL_UNION_TYPE'
       Used to represent part of a variant record in Ada.  Similar to
!      `UNION_TYPE' except that each `FIELD_DECL' has a `DECL_QUALIFIER'
       field, which contains a boolean expression that indicates whether
       the field is present in the object.  The type will only have one
!      field, so each field's `DECL_QUALIFIER' is only evaluated if none
!      of the expressions in the previous fields in `TYPE_FIELDS' are
       nonzero.  Normally these expressions will reference a field in the
!      outer object using a `PLACEHOLDER_EXPR'.
  
! `LANG_TYPE'
       This node is used to represent a language-specific type.  The front
       end must handle it.
  
! `OFFSET_TYPE'
       This node is used to represent a pointer-to-data member.  For a
!      data member `X::m' the `TYPE_OFFSET_BASETYPE' is `X' and the
!      `TREE_TYPE' is the type of `m'.
! 
  
   There are variables whose values represent some of the basic types.
  These include:
! `void_type_node'
!      A node for `void'.
  
! `integer_type_node'
!      A node for `int'.
  
! `unsigned_type_node.'
!      A node for `unsigned int'.
  
! `char_type_node.'
!      A node for `char'.
!  It may sometimes be useful to compare one of these variables with a
! type in hand, using `same_type_p'.
  
  
  File: gccint.info,  Node: Declarations,  Next: Attributes,  Prev: Types,  Up: GENERIC
--- 7867,8111 ----
  are often multiple nodes corresponding to the same type.
  
   For the most part, different kinds of types have different tree codes.
! (For example, pointer types use a 'POINTER_TYPE' code while arrays use
! an 'ARRAY_TYPE' code.)  However, pointers to member functions use the
! 'RECORD_TYPE' code.  Therefore, when writing a 'switch' statement that
  depends on the code associated with a particular type, you should take
! care to handle pointers to member functions under the 'RECORD_TYPE' case
! label.
  
   The following functions and macros deal with cv-qualification of types:
! 'TYPE_MAIN_VARIANT'
       This macro returns the unqualified version of a type.  It may be
       applied to an unqualified type, but it is not always the identity
       function in that case.
  
   A few other macros and functions are usable with all types:
! 'TYPE_SIZE'
       The number of bits required to represent the type, represented as
!      an 'INTEGER_CST'.  For an incomplete type, 'TYPE_SIZE' will be
!      'NULL_TREE'.
  
! 'TYPE_ALIGN'
!      The alignment of the type, in bits, represented as an 'int'.
  
! 'TYPE_NAME'
!      This macro returns a declaration (in the form of a 'TYPE_DECL') for
!      the type.  (Note this macro does _not_ return an 'IDENTIFIER_NODE',
!      as you might expect, given its name!)  You can look at the
!      'DECL_NAME' of the 'TYPE_DECL' to obtain the actual name of the
!      type.  The 'TYPE_NAME' will be 'NULL_TREE' for a type that is not a
!      built-in type, the result of a typedef, or a named class type.
  
! 'TYPE_CANONICAL'
       This macro returns the "canonical" type for the given type node.
       Canonical types are used to improve performance in the C++ and
       Objective-C++ front ends by allowing efficient comparison between
!      two type nodes in 'same_type_p': if the 'TYPE_CANONICAL' values of
       the types are equal, the types are equivalent; otherwise, the types
!      are not equivalent.  The notion of equivalence for canonical types
       is the same as the notion of type equivalence in the language
!      itself.  For instance,
  
!      When 'TYPE_CANONICAL' is 'NULL_TREE', there is no canonical type
!      for the given type node.  In this case, comparison between this
       type and any other type requires the compiler to perform a deep,
       "structural" comparison to see if the two type nodes have the same
       form and properties.
  
       The canonical type for a node is always the most fundamental type
!      in the equivalence class of types.  For instance, 'int' is its own
!      canonical type.  A typedef 'I' of 'int' will have 'int' as its
!      canonical type.  Similarly, 'I*' and a typedef 'IP' (defined to
!      'I*') will has 'int*' as their canonical type.  When building a new
!      type node, be sure to set 'TYPE_CANONICAL' to the appropriate
!      canonical type.  If the new type is a compound type (built from
       other types), and any of those other types require structural
!      equality, use 'SET_TYPE_STRUCTURAL_EQUALITY' to ensure that the new
!      type also requires structural equality.  Finally, if for some
!      reason you cannot guarantee that 'TYPE_CANONICAL' will point to the
!      canonical type, use 'SET_TYPE_STRUCTURAL_EQUALITY' to make sure
!      that the new type-and any type constructed based on it-requires
!      structural equality.  If you suspect that the canonical type system
!      is miscomparing types, pass '--param verify-canonical-types=1' to
!      the compiler or configure with '--enable-checking' to force the
!      compiler to verify its canonical-type comparisons against the
!      structural comparisons; the compiler will then print any warnings
!      if the canonical types miscompare.
  
! 'TYPE_STRUCTURAL_EQUALITY_P'
       This predicate holds when the node requires structural equality
!      checks, e.g., when 'TYPE_CANONICAL' is 'NULL_TREE'.
  
! 'SET_TYPE_STRUCTURAL_EQUALITY'
       This macro states that the type node it is given requires
!      structural equality checks, e.g., it sets 'TYPE_CANONICAL' to
!      'NULL_TREE'.
  
! 'same_type_p'
       This predicate takes two types as input, and holds if they are the
!      same type.  For example, if one type is a 'typedef' for the other,
!      or both are 'typedef's for the same type.  This predicate also
       holds if the two trees given as input are simply copies of one
       another; i.e., there is no difference between them at the source
       level, but, for whatever reason, a duplicate has been made in the
!      representation.  You should never use '==' (pointer equality) to
!      compare types; always use 'same_type_p' instead.
  
   Detailed below are the various kinds of types, and the macros that can
  be used to access them.  Although other kinds of types are used
  elsewhere in G++, the types described here are the only ones that you
  will encounter while examining the intermediate representation.
  
! 'VOID_TYPE'
!      Used to represent the 'void' type.
  
! 'INTEGER_TYPE'
!      Used to represent the various integral types, including 'char',
!      'short', 'int', 'long', and 'long long'.  This code is not used for
!      enumeration types, nor for the 'bool' type.  The 'TYPE_PRECISION'
!      is the number of bits used in the representation, represented as an
!      'unsigned int'.  (Note that in the general case this is not the
!      same value as 'TYPE_SIZE'; suppose that there were a 24-bit integer
!      type, but that alignment requirements for the ABI required 32-bit
!      alignment.  Then, 'TYPE_SIZE' would be an 'INTEGER_CST' for 32,
!      while 'TYPE_PRECISION' would be 24.)  The integer type is unsigned
!      if 'TYPE_UNSIGNED' holds; otherwise, it is signed.
  
!      The 'TYPE_MIN_VALUE' is an 'INTEGER_CST' for the smallest integer
       that may be represented by this type.  Similarly, the
!      'TYPE_MAX_VALUE' is an 'INTEGER_CST' for the largest integer that
       may be represented by this type.
  
! 'REAL_TYPE'
!      Used to represent the 'float', 'double', and 'long double' types.
!      The number of bits in the floating-point representation is given by
!      'TYPE_PRECISION', as in the 'INTEGER_TYPE' case.
  
! 'FIXED_POINT_TYPE'
!      Used to represent the 'short _Fract', '_Fract', 'long _Fract',
!      'long long _Fract', 'short _Accum', '_Accum', 'long _Accum', and
!      'long long _Accum' types.  The number of bits in the fixed-point
!      representation is given by 'TYPE_PRECISION', as in the
!      'INTEGER_TYPE' case.  There may be padding bits, fractional bits
       and integral bits.  The number of fractional bits is given by
!      'TYPE_FBIT', and the number of integral bits is given by
!      'TYPE_IBIT'.  The fixed-point type is unsigned if 'TYPE_UNSIGNED'
!      holds; otherwise, it is signed.  The fixed-point type is saturating
!      if 'TYPE_SATURATING' holds; otherwise, it is not saturating.
  
! 'COMPLEX_TYPE'
!      Used to represent GCC built-in '__complex__' data types.  The
!      'TREE_TYPE' is the type of the real and imaginary parts.
  
! 'ENUMERAL_TYPE'
!      Used to represent an enumeration type.  The 'TYPE_PRECISION' gives
!      (as an 'int'), the number of bits used to represent the type.  If
!      there are no negative enumeration constants, 'TYPE_UNSIGNED' will
       hold.  The minimum and maximum enumeration constants may be
!      obtained with 'TYPE_MIN_VALUE' and 'TYPE_MAX_VALUE', respectively;
!      each of these macros returns an 'INTEGER_CST'.
  
       The actual enumeration constants themselves may be obtained by
!      looking at the 'TYPE_VALUES'.  This macro will return a
!      'TREE_LIST', containing the constants.  The 'TREE_PURPOSE' of each
!      node will be an 'IDENTIFIER_NODE' giving the name of the constant;
!      the 'TREE_VALUE' will be an 'INTEGER_CST' giving the value assigned
!      to that constant.  These constants will appear in the order in
!      which they were declared.  The 'TREE_TYPE' of each of these
!      constants will be the type of enumeration type itself.
  
! 'BOOLEAN_TYPE'
!      Used to represent the 'bool' type.
  
! 'POINTER_TYPE'
       Used to represent pointer types, and pointer to data member types.
!      The 'TREE_TYPE' gives the type to which this type points.
  
! 'REFERENCE_TYPE'
!      Used to represent reference types.  The 'TREE_TYPE' gives the type
       to which this type refers.
  
! 'FUNCTION_TYPE'
       Used to represent the type of non-member functions and of static
!      member functions.  The 'TREE_TYPE' gives the return type of the
!      function.  The 'TYPE_ARG_TYPES' are a 'TREE_LIST' of the argument
!      types.  The 'TREE_VALUE' of each node in this list is the type of
!      the corresponding argument; the 'TREE_PURPOSE' is an expression for
!      the default argument value, if any.  If the last node in the list
!      is 'void_list_node' (a 'TREE_LIST' node whose 'TREE_VALUE' is the
!      'void_type_node'), then functions of this type do not take variable
!      arguments.  Otherwise, they do take a variable number of arguments.
  
!      Note that in C (but not in C++) a function declared like 'void f()'
       is an unprototyped function taking a variable number of arguments;
!      the 'TYPE_ARG_TYPES' of such a function will be 'NULL'.
  
! 'METHOD_TYPE'
       Used to represent the type of a non-static member function.  Like a
!      'FUNCTION_TYPE', the return type is given by the 'TREE_TYPE'.  The
!      type of '*this', i.e., the class of which functions of this type
!      are a member, is given by the 'TYPE_METHOD_BASETYPE'.  The
!      'TYPE_ARG_TYPES' is the parameter list, as for a 'FUNCTION_TYPE',
!      and includes the 'this' argument.
  
! 'ARRAY_TYPE'
!      Used to represent array types.  The 'TREE_TYPE' gives the type of
       the elements in the array.  If the array-bound is present in the
!      type, the 'TYPE_DOMAIN' is an 'INTEGER_TYPE' whose 'TYPE_MIN_VALUE'
!      and 'TYPE_MAX_VALUE' will be the lower and upper bounds of the
!      array, respectively.  The 'TYPE_MIN_VALUE' will always be an
!      'INTEGER_CST' for zero, while the 'TYPE_MAX_VALUE' will be one less
!      than the number of elements in the array, i.e., the highest value
!      which may be used to index an element in the array.
  
! 'RECORD_TYPE'
!      Used to represent 'struct' and 'class' types, as well as pointers
       to member functions and similar constructs in other languages.
!      'TYPE_FIELDS' contains the items contained in this type, each of
!      which can be a 'FIELD_DECL', 'VAR_DECL', 'CONST_DECL', or
!      'TYPE_DECL'.  You may not make any assumptions about the ordering
       of the fields in the type or whether one or more of them overlap.
  
! 'UNION_TYPE'
!      Used to represent 'union' types.  Similar to 'RECORD_TYPE' except
!      that all 'FIELD_DECL' nodes in 'TYPE_FIELD' start at bit position
       zero.
  
! 'QUAL_UNION_TYPE'
       Used to represent part of a variant record in Ada.  Similar to
!      'UNION_TYPE' except that each 'FIELD_DECL' has a 'DECL_QUALIFIER'
       field, which contains a boolean expression that indicates whether
       the field is present in the object.  The type will only have one
!      field, so each field's 'DECL_QUALIFIER' is only evaluated if none
!      of the expressions in the previous fields in 'TYPE_FIELDS' are
       nonzero.  Normally these expressions will reference a field in the
!      outer object using a 'PLACEHOLDER_EXPR'.
  
! 'LANG_TYPE'
       This node is used to represent a language-specific type.  The front
       end must handle it.
  
! 'OFFSET_TYPE'
       This node is used to represent a pointer-to-data member.  For a
!      data member 'X::m' the 'TYPE_OFFSET_BASETYPE' is 'X' and the
!      'TREE_TYPE' is the type of 'm'.
  
   There are variables whose values represent some of the basic types.
  These include:
! 'void_type_node'
!      A node for 'void'.
  
! 'integer_type_node'
!      A node for 'int'.
  
! 'unsigned_type_node.'
!      A node for 'unsigned int'.
  
! 'char_type_node.'
!      A node for 'char'.
! It may sometimes be useful to compare one of these variables with a type
! in hand, using 'same_type_p'.
  
  
  File: gccint.info,  Node: Declarations,  Next: Attributes,  Prev: Types,  Up: GENERIC
*************** File: gccint.info,  Node: Declarations,
*** 8276,8282 ****
  
  This section covers the various kinds of declarations that appear in the
  internal representation, except for declarations of functions
! (represented by `FUNCTION_DECL' nodes), which are described in *note
  Functions::.
  
  * Menu:
--- 8115,8121 ----
  
  This section covers the various kinds of declarations that appear in the
  internal representation, except for declarations of functions
! (represented by 'FUNCTION_DECL' nodes), which are described in *note
  Functions::.
  
  * Menu:
*************** File: gccint.info,  Node: Working with d
*** 8292,8416 ****
  --------------------------------
  
  Some macros can be used with any kind of declaration.  These include:
! `DECL_NAME'
!      This macro returns an `IDENTIFIER_NODE' giving the name of the
       entity.
  
! `TREE_TYPE'
       This macro returns the type of the entity declared.
  
! `EXPR_FILENAME'
       This macro returns the name of the file in which the entity was
!      declared, as a `char*'.  For an entity declared implicitly by the
!      compiler (like `__builtin_memcpy'), this will be the string
!      `"<internal>"'.
  
! `EXPR_LINENO'
       This macro returns the line number at which the entity was
!      declared, as an `int'.
  
! `DECL_ARTIFICIAL'
!      This predicate holds if the declaration was implicitly generated
!      by the compiler.  For example, this predicate will hold of an
!      implicitly declared member function, or of the `TYPE_DECL'
       implicitly generated for a class type.  Recall that in C++ code
       like:
            struct S {};
       is roughly equivalent to C code like:
            struct S {};
            typedef struct S S;
!      The implicitly generated `typedef' declaration is represented by a
!      `TYPE_DECL' for which `DECL_ARTIFICIAL' holds.
! 
  
   The various kinds of declarations include:
! `LABEL_DECL'
       These nodes are used to represent labels in function bodies.  For
       more information, see *note Functions::.  These nodes only appear
       in block scopes.
  
! `CONST_DECL'
!      These nodes are used to represent enumeration constants.  The
!      value of the constant is given by `DECL_INITIAL' which will be an
!      `INTEGER_CST' with the same type as the `TREE_TYPE' of the
!      `CONST_DECL', i.e., an `ENUMERAL_TYPE'.
  
! `RESULT_DECL'
       These nodes represent the value returned by a function.  When a
!      value is assigned to a `RESULT_DECL', that indicates that the
!      value should be returned, via bitwise copy, by the function.  You
!      can use `DECL_SIZE' and `DECL_ALIGN' on a `RESULT_DECL', just as
!      with a `VAR_DECL'.
  
! `TYPE_DECL'
!      These nodes represent `typedef' declarations.  The `TREE_TYPE' is
!      the type declared to have the name given by `DECL_NAME'.  In some
       cases, there is no associated name.
  
! `VAR_DECL'
       These nodes represent variables with namespace or block scope, as
!      well as static data members.  The `DECL_SIZE' and `DECL_ALIGN' are
!      analogous to `TYPE_SIZE' and `TYPE_ALIGN'.  For a declaration, you
!      should always use the `DECL_SIZE' and `DECL_ALIGN' rather than the
!      `TYPE_SIZE' and `TYPE_ALIGN' given by the `TREE_TYPE', since
!      special attributes may have been applied to the variable to give
!      it a particular size and alignment.  You may use the predicates
!      `DECL_THIS_STATIC' or `DECL_THIS_EXTERN' to test whether the
!      storage class specifiers `static' or `extern' were used to declare
       a variable.
  
       If this variable is initialized (but does not require a
!      constructor), the `DECL_INITIAL' will be an expression for the
       initializer.  The initializer should be evaluated, and a bitwise
!      copy into the variable performed.  If the `DECL_INITIAL' is the
!      `error_mark_node', there is an initializer, but it is given by an
       explicit statement later in the code; no bitwise copy is required.
  
       GCC provides an extension that allows either automatic variables,
       or global variables, to be placed in particular registers.  This
!      extension is being used for a particular `VAR_DECL' if
!      `DECL_REGISTER' holds for the `VAR_DECL', and if
!      `DECL_ASSEMBLER_NAME' is not equal to `DECL_NAME'.  In that case,
!      `DECL_ASSEMBLER_NAME' is the name of the register into which the
       variable will be placed.
  
! `PARM_DECL'
       Used to represent a parameter to a function.  Treat these nodes
!      similarly to `VAR_DECL' nodes.  These nodes only appear in the
!      `DECL_ARGUMENTS' for a `FUNCTION_DECL'.
  
!      The `DECL_ARG_TYPE' for a `PARM_DECL' is the type that will
       actually be used when a value is passed to this function.  It may
!      be a wider type than the `TREE_TYPE' of the parameter; for
!      example, the ordinary type might be `short' while the
!      `DECL_ARG_TYPE' is `int'.
  
! `DEBUG_EXPR_DECL'
       Used to represent an anonymous debug-information temporary created
       to hold an expression as it is optimized away, so that its value
       can be referenced in debug bind statements.
  
! `FIELD_DECL'
!      These nodes represent non-static data members.  The `DECL_SIZE' and
!      `DECL_ALIGN' behave as for `VAR_DECL' nodes.  The position of the
       field within the parent record is specified by a combination of
!      three attributes.  `DECL_FIELD_OFFSET' is the position, counting
!      in bytes, of the `DECL_OFFSET_ALIGN'-bit sized word containing the
!      bit of the field closest to the beginning of the structure.
!      `DECL_FIELD_BIT_OFFSET' is the bit offset of the first bit of the
       field within this word; this may be nonzero even for fields that
!      are not bit-fields, since `DECL_OFFSET_ALIGN' may be greater than
       the natural alignment of the field's type.
  
!      If `DECL_C_BIT_FIELD' holds, this field is a bit-field.  In a
!      bit-field, `DECL_BIT_FIELD_TYPE' also contains the type that was
!      originally specified for it, while DECL_TYPE may be a modified
!      type with lesser precision, according to the size of the bit field.
  
! `NAMESPACE_DECL'
       Namespaces provide a name hierarchy for other declarations.  They
!      appear in the `DECL_CONTEXT' of other `_DECL' nodes.
! 
  
  
  File: gccint.info,  Node: Internal structure,  Prev: Working with declarations,  Up: Declarations
--- 8131,8253 ----
  --------------------------------
  
  Some macros can be used with any kind of declaration.  These include:
! 'DECL_NAME'
!      This macro returns an 'IDENTIFIER_NODE' giving the name of the
       entity.
  
! 'TREE_TYPE'
       This macro returns the type of the entity declared.
  
! 'EXPR_FILENAME'
       This macro returns the name of the file in which the entity was
!      declared, as a 'char*'.  For an entity declared implicitly by the
!      compiler (like '__builtin_memcpy'), this will be the string
!      '"<internal>"'.
  
! 'EXPR_LINENO'
       This macro returns the line number at which the entity was
!      declared, as an 'int'.
  
! 'DECL_ARTIFICIAL'
!      This predicate holds if the declaration was implicitly generated by
!      the compiler.  For example, this predicate will hold of an
!      implicitly declared member function, or of the 'TYPE_DECL'
       implicitly generated for a class type.  Recall that in C++ code
       like:
            struct S {};
       is roughly equivalent to C code like:
            struct S {};
            typedef struct S S;
!      The implicitly generated 'typedef' declaration is represented by a
!      'TYPE_DECL' for which 'DECL_ARTIFICIAL' holds.
  
   The various kinds of declarations include:
! 'LABEL_DECL'
       These nodes are used to represent labels in function bodies.  For
       more information, see *note Functions::.  These nodes only appear
       in block scopes.
  
! 'CONST_DECL'
!      These nodes are used to represent enumeration constants.  The value
!      of the constant is given by 'DECL_INITIAL' which will be an
!      'INTEGER_CST' with the same type as the 'TREE_TYPE' of the
!      'CONST_DECL', i.e., an 'ENUMERAL_TYPE'.
  
! 'RESULT_DECL'
       These nodes represent the value returned by a function.  When a
!      value is assigned to a 'RESULT_DECL', that indicates that the value
!      should be returned, via bitwise copy, by the function.  You can use
!      'DECL_SIZE' and 'DECL_ALIGN' on a 'RESULT_DECL', just as with a
!      'VAR_DECL'.
  
! 'TYPE_DECL'
!      These nodes represent 'typedef' declarations.  The 'TREE_TYPE' is
!      the type declared to have the name given by 'DECL_NAME'.  In some
       cases, there is no associated name.
  
! 'VAR_DECL'
       These nodes represent variables with namespace or block scope, as
!      well as static data members.  The 'DECL_SIZE' and 'DECL_ALIGN' are
!      analogous to 'TYPE_SIZE' and 'TYPE_ALIGN'.  For a declaration, you
!      should always use the 'DECL_SIZE' and 'DECL_ALIGN' rather than the
!      'TYPE_SIZE' and 'TYPE_ALIGN' given by the 'TREE_TYPE', since
!      special attributes may have been applied to the variable to give it
!      a particular size and alignment.  You may use the predicates
!      'DECL_THIS_STATIC' or 'DECL_THIS_EXTERN' to test whether the
!      storage class specifiers 'static' or 'extern' were used to declare
       a variable.
  
       If this variable is initialized (but does not require a
!      constructor), the 'DECL_INITIAL' will be an expression for the
       initializer.  The initializer should be evaluated, and a bitwise
!      copy into the variable performed.  If the 'DECL_INITIAL' is the
!      'error_mark_node', there is an initializer, but it is given by an
       explicit statement later in the code; no bitwise copy is required.
  
       GCC provides an extension that allows either automatic variables,
       or global variables, to be placed in particular registers.  This
!      extension is being used for a particular 'VAR_DECL' if
!      'DECL_REGISTER' holds for the 'VAR_DECL', and if
!      'DECL_ASSEMBLER_NAME' is not equal to 'DECL_NAME'.  In that case,
!      'DECL_ASSEMBLER_NAME' is the name of the register into which the
       variable will be placed.
  
! 'PARM_DECL'
       Used to represent a parameter to a function.  Treat these nodes
!      similarly to 'VAR_DECL' nodes.  These nodes only appear in the
!      'DECL_ARGUMENTS' for a 'FUNCTION_DECL'.
  
!      The 'DECL_ARG_TYPE' for a 'PARM_DECL' is the type that will
       actually be used when a value is passed to this function.  It may
!      be a wider type than the 'TREE_TYPE' of the parameter; for example,
!      the ordinary type might be 'short' while the 'DECL_ARG_TYPE' is
!      'int'.
  
! 'DEBUG_EXPR_DECL'
       Used to represent an anonymous debug-information temporary created
       to hold an expression as it is optimized away, so that its value
       can be referenced in debug bind statements.
  
! 'FIELD_DECL'
!      These nodes represent non-static data members.  The 'DECL_SIZE' and
!      'DECL_ALIGN' behave as for 'VAR_DECL' nodes.  The position of the
       field within the parent record is specified by a combination of
!      three attributes.  'DECL_FIELD_OFFSET' is the position, counting in
!      bytes, of the 'DECL_OFFSET_ALIGN'-bit sized word containing the bit
!      of the field closest to the beginning of the structure.
!      'DECL_FIELD_BIT_OFFSET' is the bit offset of the first bit of the
       field within this word; this may be nonzero even for fields that
!      are not bit-fields, since 'DECL_OFFSET_ALIGN' may be greater than
       the natural alignment of the field's type.
  
!      If 'DECL_C_BIT_FIELD' holds, this field is a bit-field.  In a
!      bit-field, 'DECL_BIT_FIELD_TYPE' also contains the type that was
!      originally specified for it, while DECL_TYPE may be a modified type
!      with lesser precision, according to the size of the bit field.
  
! 'NAMESPACE_DECL'
       Namespaces provide a name hierarchy for other declarations.  They
!      appear in the 'DECL_CONTEXT' of other '_DECL' nodes.
  
  
  File: gccint.info,  Node: Internal structure,  Prev: Working with declarations,  Up: Declarations
*************** File: gccint.info,  Node: Internal struc
*** 8418,8424 ****
  10.4.2 Internal structure
  -------------------------
  
! `DECL' nodes are represented internally as a hierarchy of structures.
  
  * Menu:
  
--- 8255,8261 ----
  10.4.2 Internal structure
  -------------------------
  
! 'DECL' nodes are represented internally as a hierarchy of structures.
  
  * Menu:
  
*************** File: gccint.info,  Node: Current struct
*** 8433,8490 ****
  10.4.2.1 Current structure hierarchy
  ....................................
  
! `struct tree_decl_minimal'
       This is the minimal structure to inherit from in order for common
!      `DECL' macros to work.  The fields it contains are a unique ID,
       source location, context, and name.
  
! `struct tree_decl_common'
!      This structure inherits from `struct tree_decl_minimal'.  It
!      contains fields that most `DECL' nodes need, such as a field to
       store alignment, machine mode, size, and attributes.
  
! `struct tree_field_decl'
!      This structure inherits from `struct tree_decl_common'.  It is
!      used to represent `FIELD_DECL'.
  
! `struct tree_label_decl'
!      This structure inherits from `struct tree_decl_common'.  It is
!      used to represent `LABEL_DECL'.
  
! `struct tree_translation_unit_decl'
!      This structure inherits from `struct tree_decl_common'.  It is
!      used to represent `TRANSLATION_UNIT_DECL'.
  
! `struct tree_decl_with_rtl'
!      This structure inherits from `struct tree_decl_common'.  It
       contains a field to store the low-level RTL associated with a
!      `DECL' node.
  
! `struct tree_result_decl'
!      This structure inherits from `struct tree_decl_with_rtl'.  It is
!      used to represent `RESULT_DECL'.
  
! `struct tree_const_decl'
!      This structure inherits from `struct tree_decl_with_rtl'.  It is
!      used to represent `CONST_DECL'.
  
! `struct tree_parm_decl'
!      This structure inherits from `struct tree_decl_with_rtl'.  It is
!      used to represent `PARM_DECL'.
  
! `struct tree_decl_with_vis'
!      This structure inherits from `struct tree_decl_with_rtl'.  It
       contains fields necessary to store visibility information, as well
       as a section name and assembler name.
  
! `struct tree_var_decl'
!      This structure inherits from `struct tree_decl_with_vis'.  It is
!      used to represent `VAR_DECL'.
! 
! `struct tree_function_decl'
!      This structure inherits from `struct tree_decl_with_vis'.  It is
!      used to represent `FUNCTION_DECL'.
  
  
  
  File: gccint.info,  Node: Adding new DECL node types,  Prev: Current structure hierarchy,  Up: Internal structure
--- 8270,8326 ----
  10.4.2.1 Current structure hierarchy
  ....................................
  
! 'struct tree_decl_minimal'
       This is the minimal structure to inherit from in order for common
!      'DECL' macros to work.  The fields it contains are a unique ID,
       source location, context, and name.
  
! 'struct tree_decl_common'
!      This structure inherits from 'struct tree_decl_minimal'.  It
!      contains fields that most 'DECL' nodes need, such as a field to
       store alignment, machine mode, size, and attributes.
  
! 'struct tree_field_decl'
!      This structure inherits from 'struct tree_decl_common'.  It is used
!      to represent 'FIELD_DECL'.
  
! 'struct tree_label_decl'
!      This structure inherits from 'struct tree_decl_common'.  It is used
!      to represent 'LABEL_DECL'.
  
! 'struct tree_translation_unit_decl'
!      This structure inherits from 'struct tree_decl_common'.  It is used
!      to represent 'TRANSLATION_UNIT_DECL'.
  
! 'struct tree_decl_with_rtl'
!      This structure inherits from 'struct tree_decl_common'.  It
       contains a field to store the low-level RTL associated with a
!      'DECL' node.
  
! 'struct tree_result_decl'
!      This structure inherits from 'struct tree_decl_with_rtl'.  It is
!      used to represent 'RESULT_DECL'.
  
! 'struct tree_const_decl'
!      This structure inherits from 'struct tree_decl_with_rtl'.  It is
!      used to represent 'CONST_DECL'.
  
! 'struct tree_parm_decl'
!      This structure inherits from 'struct tree_decl_with_rtl'.  It is
!      used to represent 'PARM_DECL'.
  
! 'struct tree_decl_with_vis'
!      This structure inherits from 'struct tree_decl_with_rtl'.  It
       contains fields necessary to store visibility information, as well
       as a section name and assembler name.
  
! 'struct tree_var_decl'
!      This structure inherits from 'struct tree_decl_with_vis'.  It is
!      used to represent 'VAR_DECL'.
  
+ 'struct tree_function_decl'
+      This structure inherits from 'struct tree_decl_with_vis'.  It is
+      used to represent 'FUNCTION_DECL'.
  
  
  File: gccint.info,  Node: Adding new DECL node types,  Prev: Current structure hierarchy,  Up: Internal structure
*************** File: gccint.info,  Node: Adding new DEC
*** 8492,8567 ****
  10.4.2.2 Adding new DECL node types
  ...................................
  
! Adding a new `DECL' tree consists of the following steps
  
! Add a new tree code for the `DECL' node
!      For language specific `DECL' nodes, there is a `.def' file in each
!      frontend directory where the tree code should be added.  For
!      `DECL' nodes that are part of the middle-end, the code should be
!      added to `tree.def'.
  
! Create a new structure type for the `DECL' node
!      These structures should inherit from one of the existing
!      structures in the language hierarchy by using that structure as
!      the first member.
  
            struct tree_foo_decl
            {
               struct tree_decl_with_vis common;
            }
  
!      Would create a structure name `tree_foo_decl' that inherits from
!      `struct tree_decl_with_vis'.
  
!      For language specific `DECL' nodes, this new structure type should
!      go in the appropriate `.h' file.  For `DECL' nodes that are part
!      of the middle-end, the structure type should go in `tree.h'.
  
  Add a member to the tree structure enumerator for the node
!      For garbage collection and dynamic checking purposes, each `DECL'
       node structure type is required to have a unique enumerator value
!      specified with it.  For language specific `DECL' nodes, this new
!      enumerator value should go in the appropriate `.def' file.  For
!      `DECL' nodes that are part of the middle-end, the enumerator
!      values are specified in `treestruct.def'.
  
! Update `union tree_node'
       In order to make your new structure type usable, it must be added
!      to `union tree_node'.  For language specific `DECL' nodes, a new
!      entry should be added to the appropriate `.h' file of the form
              struct tree_foo_decl GTY ((tag ("TS_VAR_DECL"))) foo_decl;
!      For `DECL' nodes that are part of the middle-end, the additional
!      member goes directly into `union tree_node' in `tree.h'.
  
  Update dynamic checking info
       In order to be able to check whether accessing a named portion of
!      `union tree_node' is legal, and whether a certain `DECL' node
!      contains one of the enumerated `DECL' node structures in the
       hierarchy, a simple lookup table is used.  This lookup table needs
       to be kept up to date with the tree structure hierarchy, or else
       checking and containment macros will fail inappropriately.
  
!      For language specific `DECL' nodes, their is an `init_ts' function
!      in an appropriate `.c' file, which initializes the lookup table.
!      Code setting up the table for new `DECL' nodes should be added
!      there.  For each `DECL' tree code and enumerator value
!      representing a member of the inheritance  hierarchy, the table
!      should contain 1 if that tree code inherits (directly or
!      indirectly) from that member.  Thus, a `FOO_DECL' node derived
!      from `struct decl_with_rtl', and enumerator value `TS_FOO_DECL',
!      would be set up as follows
            tree_contains_struct[FOO_DECL][TS_FOO_DECL] = 1;
            tree_contains_struct[FOO_DECL][TS_DECL_WRTL] = 1;
            tree_contains_struct[FOO_DECL][TS_DECL_COMMON] = 1;
            tree_contains_struct[FOO_DECL][TS_DECL_MINIMAL] = 1;
  
!      For `DECL' nodes that are part of the middle-end, the setup code
!      goes into `tree.c'.
  
  Add macros to access any new fields and flags
       Each added field or flag should have a macro that is used to access
       it, that performs appropriate checking to ensure only the right
!      type of `DECL' nodes access the field.
  
       These macros generally take the following form
            #define FOO_DECL_FIELDNAME(NODE) FOO_DECL_CHECK(NODE)->foo_decl.fieldname
--- 8328,8404 ----
  10.4.2.2 Adding new DECL node types
  ...................................
  
! Adding a new 'DECL' tree consists of the following steps
  
! Add a new tree code for the 'DECL' node
!      For language specific 'DECL' nodes, there is a '.def' file in each
!      frontend directory where the tree code should be added.  For 'DECL'
!      nodes that are part of the middle-end, the code should be added to
!      'tree.def'.
  
! Create a new structure type for the 'DECL' node
!      These structures should inherit from one of the existing structures
!      in the language hierarchy by using that structure as the first
!      member.
  
            struct tree_foo_decl
            {
               struct tree_decl_with_vis common;
            }
  
!      Would create a structure name 'tree_foo_decl' that inherits from
!      'struct tree_decl_with_vis'.
  
!      For language specific 'DECL' nodes, this new structure type should
!      go in the appropriate '.h' file.  For 'DECL' nodes that are part of
!      the middle-end, the structure type should go in 'tree.h'.
  
  Add a member to the tree structure enumerator for the node
!      For garbage collection and dynamic checking purposes, each 'DECL'
       node structure type is required to have a unique enumerator value
!      specified with it.  For language specific 'DECL' nodes, this new
!      enumerator value should go in the appropriate '.def' file.  For
!      'DECL' nodes that are part of the middle-end, the enumerator values
!      are specified in 'treestruct.def'.
  
! Update 'union tree_node'
       In order to make your new structure type usable, it must be added
!      to 'union tree_node'.  For language specific 'DECL' nodes, a new
!      entry should be added to the appropriate '.h' file of the form
              struct tree_foo_decl GTY ((tag ("TS_VAR_DECL"))) foo_decl;
!      For 'DECL' nodes that are part of the middle-end, the additional
!      member goes directly into 'union tree_node' in 'tree.h'.
  
  Update dynamic checking info
       In order to be able to check whether accessing a named portion of
!      'union tree_node' is legal, and whether a certain 'DECL' node
!      contains one of the enumerated 'DECL' node structures in the
       hierarchy, a simple lookup table is used.  This lookup table needs
       to be kept up to date with the tree structure hierarchy, or else
       checking and containment macros will fail inappropriately.
  
!      For language specific 'DECL' nodes, their is an 'init_ts' function
!      in an appropriate '.c' file, which initializes the lookup table.
!      Code setting up the table for new 'DECL' nodes should be added
!      there.  For each 'DECL' tree code and enumerator value representing
!      a member of the inheritance hierarchy, the table should contain 1
!      if that tree code inherits (directly or indirectly) from that
!      member.  Thus, a 'FOO_DECL' node derived from 'struct
!      decl_with_rtl', and enumerator value 'TS_FOO_DECL', would be set up
!      as follows
            tree_contains_struct[FOO_DECL][TS_FOO_DECL] = 1;
            tree_contains_struct[FOO_DECL][TS_DECL_WRTL] = 1;
            tree_contains_struct[FOO_DECL][TS_DECL_COMMON] = 1;
            tree_contains_struct[FOO_DECL][TS_DECL_MINIMAL] = 1;
  
!      For 'DECL' nodes that are part of the middle-end, the setup code
!      goes into 'tree.c'.
  
  Add macros to access any new fields and flags
+ 
       Each added field or flag should have a macro that is used to access
       it, that performs appropriate checking to ensure only the right
!      type of 'DECL' nodes access the field.
  
       These macros generally take the following form
            #define FOO_DECL_FIELDNAME(NODE) FOO_DECL_CHECK(NODE)->foo_decl.fieldname
*************** Add macros to access any new fields and
*** 8571,8580 ****
            #define BASE_STRUCT_FIELDNAME(NODE) \
               (BASE_STRUCT_CHECK(NODE)->base_struct.fieldname
  
!      Reading them from the generated `all-tree.def' file (which in turn
!      includes all the `tree.def' files), `gencheck.c' is used during
!      GCC's build to generate the `*_CHECK' macros for all tree codes.
! 
  
  
  File: gccint.info,  Node: Attributes,  Next: Expression trees,  Prev: Declarations,  Up: GENERIC
--- 8408,8416 ----
            #define BASE_STRUCT_FIELDNAME(NODE) \
               (BASE_STRUCT_CHECK(NODE)->base_struct.fieldname
  
!      Reading them from the generated 'all-tree.def' file (which in turn
!      includes all the 'tree.def' files), 'gencheck.c' is used during
!      GCC's build to generate the '*_CHECK' macros for all tree codes.
  
  
  File: gccint.info,  Node: Attributes,  Next: Expression trees,  Prev: Declarations,  Up: GENERIC
*************** File: gccint.info,  Node: Attributes,  N
*** 8582,8596 ****
  10.5 Attributes in trees
  ========================
  
! Attributes, as specified using the `__attribute__' keyword, are
! represented internally as a `TREE_LIST'.  The `TREE_PURPOSE' is the
! name of the attribute, as an `IDENTIFIER_NODE'.  The `TREE_VALUE' is a
! `TREE_LIST' of the arguments of the attribute, if any, or `NULL_TREE'
! if there are no arguments; the arguments are stored as the `TREE_VALUE'
! of successive entries in the list, and may be identifiers or
! expressions.  The `TREE_CHAIN' of the attribute is the next attribute
! in a list of attributes applying to the same declaration or type, or
! `NULL_TREE' if there are no further attributes in the list.
  
   Attributes may be attached to declarations and to types; these
  attributes may be accessed with the following macros.  All attributes
--- 8418,8432 ----
  10.5 Attributes in trees
  ========================
  
! Attributes, as specified using the '__attribute__' keyword, are
! represented internally as a 'TREE_LIST'.  The 'TREE_PURPOSE' is the name
! of the attribute, as an 'IDENTIFIER_NODE'.  The 'TREE_VALUE' is a
! 'TREE_LIST' of the arguments of the attribute, if any, or 'NULL_TREE' if
! there are no arguments; the arguments are stored as the 'TREE_VALUE' of
! successive entries in the list, and may be identifiers or expressions.
! The 'TREE_CHAIN' of the attribute is the next attribute in a list of
! attributes applying to the same declaration or type, or 'NULL_TREE' if
! there are no further attributes in the list.
  
   Attributes may be attached to declarations and to types; these
  attributes may be accessed with the following macros.  All attributes
*************** mind.  In particular, the expression "tr
*** 8615,8632 ****
  acyclic graph.  (For example there may be many references to the integer
  constant zero throughout the source program; many of these will be
  represented by the same expression node.)  You should not rely on
! certain kinds of node being shared, nor should you rely on certain
! kinds of nodes being unshared.
  
   The following macros can be used with all expression nodes:
  
! `TREE_TYPE'
       Returns the type of the expression.  This value may not be
       precisely the same type that would be given the expression in the
       original program.
  
   In what follows, some nodes that one might expect to always have type
! `bool' are documented to have either integral or boolean type.  At some
  point in the future, the C front end may also make use of this same
  intermediate representation, and at this point these nodes will
  certainly have integral type.  The previous sentence is not meant to
--- 8451,8468 ----
  acyclic graph.  (For example there may be many references to the integer
  constant zero throughout the source program; many of these will be
  represented by the same expression node.)  You should not rely on
! certain kinds of node being shared, nor should you rely on certain kinds
! of nodes being unshared.
  
   The following macros can be used with all expression nodes:
  
! 'TREE_TYPE'
       Returns the type of the expression.  This value may not be
       precisely the same type that would be given the expression in the
       original program.
  
   In what follows, some nodes that one might expect to always have type
! 'bool' are documented to have either integral or boolean type.  At some
  point in the future, the C front end may also make use of this same
  intermediate representation, and at this point these nodes will
  certainly have integral type.  The previous sentence is not meant to
*************** integral type.
*** 8635,8644 ****
  
   Below, we list the various kinds of expression nodes.  Except where
  noted otherwise, the operands to an expression are accessed using the
! `TREE_OPERAND' macro.  For example, to access the first operand to a
! binary plus expression `expr', use:
  
       TREE_OPERAND (expr, 0)
   As this example indicates, the operands are zero-indexed.
  
  * Menu:
--- 8471,8481 ----
  
   Below, we list the various kinds of expression nodes.  Except where
  noted otherwise, the operands to an expression are accessed using the
! 'TREE_OPERAND' macro.  For example, to access the first operand to a
! binary plus expression 'expr', use:
  
       TREE_OPERAND (expr, 0)
+ 
   As this example indicates, the operands are zero-indexed.
  
  * Menu:
*************** The table below begins with constants, m
*** 8658,8733 ****
  then proceeds to binary expressions, and concludes with various other
  kinds of expressions:
  
! `INTEGER_CST'
       These nodes represent integer constants.  Note that the type of
!      these constants is obtained with `TREE_TYPE'; they are not always
!      of type `int'.  In particular, `char' constants are represented
!      with `INTEGER_CST' nodes.  The value of the integer constant `e' is
!      represented in an array of HOST_WIDE_INT.   There are enough
!      elements in the array to represent the value without taking extra
!      elements for redundant 0s or -1.  The number of elements used to
!      represent `e' is available via `TREE_INT_CST_NUNITS'. Element `i'
!      can be extracted by using `TREE_INT_CST_ELT (e, i)'.
!      `TREE_INT_CST_LOW' is a shorthand for `TREE_INT_CST_ELT (e, 0)'.
  
!      The functions `tree_fits_shwi_p' and `tree_fits_uhwi_p' can be
!      used to tell if the value is small enough to fit in a signed
!      HOST_WIDE_INT or an unsigned HOST_WIDE_INT respectively.  The
!      value can then be extracted using `tree_to_shwi' and
!      `tree_to_uhwi'.
  
- `REAL_CST'
       FIXME: Talk about how to obtain representations of this constant,
       do comparisons, and so forth.
  
! `FIXED_CST'
       These nodes represent fixed-point constants.  The type of these
!      constants is obtained with `TREE_TYPE'.  `TREE_FIXED_CST_PTR'
!      points to a `struct fixed_value';  `TREE_FIXED_CST' returns the
!      structure itself.  `struct fixed_value' contains `data' with the
!      size of two `HOST_BITS_PER_WIDE_INT' and `mode' as the associated
!      fixed-point machine mode for `data'.
  
! `COMPLEX_CST'
!      These nodes are used to represent complex number constants, that
!      is a `__complex__' whose parts are constant nodes.  The
!      `TREE_REALPART' and `TREE_IMAGPART' return the real and the
       imaginary parts respectively.
  
! `VECTOR_CST'
       These nodes are used to represent vector constants, whose parts are
!      constant nodes.  Each individual constant node is either an
!      integer or a double constant node.  The first operand is a
!      `TREE_LIST' of the constant nodes and is accessed through
!      `TREE_VECTOR_CST_ELTS'.
  
! `STRING_CST'
!      These nodes represent string-constants.  The `TREE_STRING_LENGTH'
!      returns the length of the string, as an `int'.  The
!      `TREE_STRING_POINTER' is a `char*' containing the string itself.
!      The string may not be `NUL'-terminated, and it may contain
!      embedded `NUL' characters.  Therefore, the `TREE_STRING_LENGTH'
!      includes the trailing `NUL' if it is present.
  
!      For wide string constants, the `TREE_STRING_LENGTH' is the number
!      of bytes in the string, and the `TREE_STRING_POINTER' points to an
       array of the bytes of the string, as represented on the target
       system (that is, as integers in the target endianness).  Wide and
!      non-wide string constants are distinguished only by the `TREE_TYPE'
!      of the `STRING_CST'.
  
       FIXME: The formats of string constants are not well-defined when
       the target system bytes are not the same width as host system
       bytes.
  
- 
  
  File: gccint.info,  Node: Storage References,  Next: Unary and Binary Expressions,  Prev: Constant expressions,  Up: Expression trees
  
  10.6.2 References to storage
  ----------------------------
  
! `ARRAY_REF'
       These nodes represent array accesses.  The first operand is the
       array; the second is the index.  To calculate the address of the
       memory accessed, you must scale the index by the size of the type
--- 8495,8569 ----
  then proceeds to binary expressions, and concludes with various other
  kinds of expressions:
  
! 'INTEGER_CST'
       These nodes represent integer constants.  Note that the type of
!      these constants is obtained with 'TREE_TYPE'; they are not always
!      of type 'int'.  In particular, 'char' constants are represented
!      with 'INTEGER_CST' nodes.  The value of the integer constant 'e' is
!      represented in an array of HOST_WIDE_INT. There are enough elements
!      in the array to represent the value without taking extra elements
!      for redundant 0s or -1.  The number of elements used to represent
!      'e' is available via 'TREE_INT_CST_NUNITS'.  Element 'i' can be
!      extracted by using 'TREE_INT_CST_ELT (e, i)'.  'TREE_INT_CST_LOW'
!      is a shorthand for 'TREE_INT_CST_ELT (e, 0)'.
  
!      The functions 'tree_fits_shwi_p' and 'tree_fits_uhwi_p' can be used
!      to tell if the value is small enough to fit in a signed
!      HOST_WIDE_INT or an unsigned HOST_WIDE_INT respectively.  The value
!      can then be extracted using 'tree_to_shwi' and 'tree_to_uhwi'.
! 
! 'REAL_CST'
  
       FIXME: Talk about how to obtain representations of this constant,
       do comparisons, and so forth.
  
! 'FIXED_CST'
! 
       These nodes represent fixed-point constants.  The type of these
!      constants is obtained with 'TREE_TYPE'.  'TREE_FIXED_CST_PTR'
!      points to a 'struct fixed_value'; 'TREE_FIXED_CST' returns the
!      structure itself.  'struct fixed_value' contains 'data' with the
!      size of two 'HOST_BITS_PER_WIDE_INT' and 'mode' as the associated
!      fixed-point machine mode for 'data'.
  
! 'COMPLEX_CST'
!      These nodes are used to represent complex number constants, that is
!      a '__complex__' whose parts are constant nodes.  The
!      'TREE_REALPART' and 'TREE_IMAGPART' return the real and the
       imaginary parts respectively.
  
! 'VECTOR_CST'
       These nodes are used to represent vector constants, whose parts are
!      constant nodes.  Each individual constant node is either an integer
!      or a double constant node.  The first operand is a 'TREE_LIST' of
!      the constant nodes and is accessed through 'TREE_VECTOR_CST_ELTS'.
  
! 'STRING_CST'
!      These nodes represent string-constants.  The 'TREE_STRING_LENGTH'
!      returns the length of the string, as an 'int'.  The
!      'TREE_STRING_POINTER' is a 'char*' containing the string itself.
!      The string may not be 'NUL'-terminated, and it may contain embedded
!      'NUL' characters.  Therefore, the 'TREE_STRING_LENGTH' includes the
!      trailing 'NUL' if it is present.
  
!      For wide string constants, the 'TREE_STRING_LENGTH' is the number
!      of bytes in the string, and the 'TREE_STRING_POINTER' points to an
       array of the bytes of the string, as represented on the target
       system (that is, as integers in the target endianness).  Wide and
!      non-wide string constants are distinguished only by the 'TREE_TYPE'
!      of the 'STRING_CST'.
  
       FIXME: The formats of string constants are not well-defined when
       the target system bytes are not the same width as host system
       bytes.
  
  
  File: gccint.info,  Node: Storage References,  Next: Unary and Binary Expressions,  Prev: Constant expressions,  Up: Expression trees
  
  10.6.2 References to storage
  ----------------------------
  
! 'ARRAY_REF'
       These nodes represent array accesses.  The first operand is the
       array; the second is the index.  To calculate the address of the
       memory accessed, you must scale the index by the size of the type
*************** File: gccint.info,  Node: Storage Refere
*** 8735,8799 ****
       type of a component of the array.  The third and fourth operands
       are used after gimplification to represent the lower bound and
       component size but should not be used directly; call
!      `array_ref_low_bound' and `array_ref_element_size' instead.
  
! `ARRAY_RANGE_REF'
       These nodes represent access to a range (or "slice") of an array.
!      The operands are the same as that for `ARRAY_REF' and have the same
       meanings.  The type of these expressions must be an array whose
!      component type is the same as that of the first operand.  The
!      range of that array type determines the amount of data these
!      expressions access.
  
! `TARGET_MEM_REF'
       These nodes represent memory accesses whose address directly map to
       an addressing mode of the target architecture.  The first argument
!      is `TMR_SYMBOL' and must be a `VAR_DECL' of an object with a fixed
!      address.  The second argument is `TMR_BASE' and the third one is
!      `TMR_INDEX'.  The fourth argument is `TMR_STEP' and must be an
!      `INTEGER_CST'.  The fifth argument is `TMR_OFFSET' and must be an
!      `INTEGER_CST'.  Any of the arguments may be NULL if the
!      appropriate component does not appear in the address.  Address of
!      the `TARGET_MEM_REF' is determined in the following way.
  
            &TMR_SYMBOL + TMR_BASE + TMR_INDEX * TMR_STEP + TMR_OFFSET
  
       The sixth argument is the reference to the original memory access,
!      which is preserved for the purposes of the RTL alias analysis.
!      The seventh argument is a tag representing the results of tree
!      level alias analysis.
  
! `ADDR_EXPR'
       These nodes are used to represent the address of an object.  (These
       expressions will always have pointer or reference type.)  The
       operand may be another expression, or it may be a declaration.
  
       As an extension, GCC allows users to take the address of a label.
!      In this case, the operand of the `ADDR_EXPR' will be a
!      `LABEL_DECL'.  The type of such an expression is `void*'.
  
       If the object addressed is not an lvalue, a temporary is created,
       and the address of the temporary is used.
  
! `INDIRECT_REF'
       These nodes are used to represent the object pointed to by a
       pointer.  The operand is the pointer being dereferenced; it will
       always have pointer or reference type.
  
! `MEM_REF'
       These nodes are used to represent the object pointed to by a
       pointer offset by a constant.  The first operand is the pointer
       being dereferenced; it will always have pointer or reference type.
       The second operand is a pointer constant.  Its type is specifying
       the type to be used for type-based alias analysis.
  
! `COMPONENT_REF'
       These nodes represent non-static data member accesses.  The first
       operand is the object (rather than a pointer to it); the second
!      operand is the `FIELD_DECL' for the data member.  The third
!      operand represents the byte offset of the field, but should not be
!      used directly; call `component_ref_field_offset' instead.
! 
  
  
  File: gccint.info,  Node: Unary and Binary Expressions,  Next: Vectors,  Prev: Storage References,  Up: Expression trees
--- 8571,8634 ----
       type of a component of the array.  The third and fourth operands
       are used after gimplification to represent the lower bound and
       component size but should not be used directly; call
!      'array_ref_low_bound' and 'array_ref_element_size' instead.
  
! 'ARRAY_RANGE_REF'
       These nodes represent access to a range (or "slice") of an array.
!      The operands are the same as that for 'ARRAY_REF' and have the same
       meanings.  The type of these expressions must be an array whose
!      component type is the same as that of the first operand.  The range
!      of that array type determines the amount of data these expressions
!      access.
  
! 'TARGET_MEM_REF'
       These nodes represent memory accesses whose address directly map to
       an addressing mode of the target architecture.  The first argument
!      is 'TMR_SYMBOL' and must be a 'VAR_DECL' of an object with a fixed
!      address.  The second argument is 'TMR_BASE' and the third one is
!      'TMR_INDEX'.  The fourth argument is 'TMR_STEP' and must be an
!      'INTEGER_CST'.  The fifth argument is 'TMR_OFFSET' and must be an
!      'INTEGER_CST'.  Any of the arguments may be NULL if the appropriate
!      component does not appear in the address.  Address of the
!      'TARGET_MEM_REF' is determined in the following way.
  
            &TMR_SYMBOL + TMR_BASE + TMR_INDEX * TMR_STEP + TMR_OFFSET
  
       The sixth argument is the reference to the original memory access,
!      which is preserved for the purposes of the RTL alias analysis.  The
!      seventh argument is a tag representing the results of tree level
!      alias analysis.
  
! 'ADDR_EXPR'
       These nodes are used to represent the address of an object.  (These
       expressions will always have pointer or reference type.)  The
       operand may be another expression, or it may be a declaration.
  
       As an extension, GCC allows users to take the address of a label.
!      In this case, the operand of the 'ADDR_EXPR' will be a
!      'LABEL_DECL'.  The type of such an expression is 'void*'.
  
       If the object addressed is not an lvalue, a temporary is created,
       and the address of the temporary is used.
  
! 'INDIRECT_REF'
       These nodes are used to represent the object pointed to by a
       pointer.  The operand is the pointer being dereferenced; it will
       always have pointer or reference type.
  
! 'MEM_REF'
       These nodes are used to represent the object pointed to by a
       pointer offset by a constant.  The first operand is the pointer
       being dereferenced; it will always have pointer or reference type.
       The second operand is a pointer constant.  Its type is specifying
       the type to be used for type-based alias analysis.
  
! 'COMPONENT_REF'
       These nodes represent non-static data member accesses.  The first
       operand is the object (rather than a pointer to it); the second
!      operand is the 'FIELD_DECL' for the data member.  The third operand
!      represents the byte offset of the field, but should not be used
!      directly; call 'component_ref_field_offset' instead.
  
  
  File: gccint.info,  Node: Unary and Binary Expressions,  Next: Vectors,  Prev: Storage References,  Up: Expression trees
*************** File: gccint.info,  Node: Unary and Bina
*** 8801,8960 ****
  10.6.3 Unary and Binary Expressions
  -----------------------------------
  
! `NEGATE_EXPR'
       These nodes represent unary negation of the single operand, for
       both integer and floating-point types.  The type of negation can be
       determined by looking at the type of the expression.
  
       The behavior of this operation on signed arithmetic overflow is
!      controlled by the `flag_wrapv' and `flag_trapv' variables.
  
! `ABS_EXPR'
       These nodes represent the absolute value of the single operand, for
       both integer and floating-point types.  This is typically used to
!      implement the `abs', `labs' and `llabs' builtins for integer
!      types, and the `fabs', `fabsf' and `fabsl' builtins for floating
!      point types.  The type of abs operation can be determined by
!      looking at the type of the expression.
  
       This node is not used for complex types.  To represent the modulus
!      or complex abs of a complex value, use the `BUILT_IN_CABS',
!      `BUILT_IN_CABSF' or `BUILT_IN_CABSL' builtins, as used to
!      implement the C99 `cabs', `cabsf' and `cabsl' built-in functions.
  
! `BIT_NOT_EXPR'
       These nodes represent bitwise complement, and will always have
       integral type.  The only operand is the value to be complemented.
  
! `TRUTH_NOT_EXPR'
       These nodes represent logical negation, and will always have
       integral (or boolean) type.  The operand is the value being
!      negated.  The type of the operand and that of the result are
!      always of `BOOLEAN_TYPE' or `INTEGER_TYPE'.
  
! `PREDECREMENT_EXPR'
! `PREINCREMENT_EXPR'
! `POSTDECREMENT_EXPR'
! `POSTINCREMENT_EXPR'
       These nodes represent increment and decrement expressions.  The
       value of the single operand is computed, and the operand
!      incremented or decremented.  In the case of `PREDECREMENT_EXPR' and
!      `PREINCREMENT_EXPR', the value of the expression is the value
       resulting after the increment or decrement; in the case of
!      `POSTDECREMENT_EXPR' and `POSTINCREMENT_EXPR' is the value before
       the increment or decrement occurs.  The type of the operand, like
       that of the result, will be either integral, boolean, or
       floating-point.
  
! `FIX_TRUNC_EXPR'
       These nodes represent conversion of a floating-point value to an
       integer.  The single operand will have a floating-point type, while
       the complete expression will have an integral (or boolean) type.
       The operand is rounded towards zero.
  
! `FLOAT_EXPR'
       These nodes represent conversion of an integral (or boolean) value
       to a floating-point value.  The single operand will have integral
       type, while the complete expression will have a floating-point
       type.
  
       FIXME: How is the operand supposed to be rounded?  Is this
!      dependent on `-mieee'?
  
! `COMPLEX_EXPR'
       These nodes are used to represent complex numbers constructed from
       two expressions of the same (integer or real) type.  The first
       operand is the real part and the second operand is the imaginary
       part.
  
! `CONJ_EXPR'
       These nodes represent the conjugate of their operand.
  
! `REALPART_EXPR'
! `IMAGPART_EXPR'
       These nodes represent respectively the real and the imaginary parts
       of complex numbers (their sole argument).
  
! `NON_LVALUE_EXPR'
       These nodes indicate that their one and only operand is not an
       lvalue.  A back end can treat these identically to the single
       operand.
  
! `NOP_EXPR'
       These nodes are used to represent conversions that do not require
!      any code-generation.  For example, conversion of a `char*' to an
!      `int*' does not require any code be generated; such a conversion is
!      represented by a `NOP_EXPR'.  The single operand is the expression
       to be converted.  The conversion from a pointer to a reference is
!      also represented with a `NOP_EXPR'.
  
! `CONVERT_EXPR'
!      These nodes are similar to `NOP_EXPR's, but are used in those
       situations where code may need to be generated.  For example, if an
!      `int*' is converted to an `int' code may need to be generated on
       some platforms.  These nodes are never used for C++-specific
!      conversions, like conversions between pointers to different
!      classes in an inheritance hierarchy.  Any adjustments that need to
!      be made in such cases are always indicated explicitly.  Similarly,
!      a user-defined conversion is never represented by a
!      `CONVERT_EXPR'; instead, the function calls are made explicit.
  
! `FIXED_CONVERT_EXPR'
       These nodes are used to represent conversions that involve
       fixed-point values.  For example, from a fixed-point value to
       another fixed-point value, from an integer to a fixed-point value,
!      from a fixed-point value to an integer, from a floating-point
!      value to a fixed-point value, or from a fixed-point value to a
       floating-point value.
  
! `LSHIFT_EXPR'
! `RSHIFT_EXPR'
       These nodes represent left and right shifts, respectively.  The
       first operand is the value to shift; it will always be of integral
       type.  The second operand is an expression for the number of bits
       by which to shift.  Right shift should be treated as arithmetic,
!      i.e., the high-order bits should be zero-filled when the
!      expression has unsigned type and filled with the sign bit when the
!      expression has signed type.  Note that the result is undefined if
!      the second operand is larger than or equal to the first operand's
!      type size. Unlike most nodes, these can have a vector as first
!      operand and a scalar as second operand.
  
! `BIT_IOR_EXPR'
! `BIT_XOR_EXPR'
! `BIT_AND_EXPR'
       These nodes represent bitwise inclusive or, bitwise exclusive or,
       and bitwise and, respectively.  Both operands will always have
       integral type.
  
! `TRUTH_ANDIF_EXPR'
! `TRUTH_ORIF_EXPR'
       These nodes represent logical "and" and logical "or", respectively.
       These operators are not strict; i.e., the second operand is
       evaluated only if the value of the expression is not determined by
!      evaluation of the first operand.  The type of the operands and
!      that of the result are always of `BOOLEAN_TYPE' or `INTEGER_TYPE'.
  
! `TRUTH_AND_EXPR'
! `TRUTH_OR_EXPR'
! `TRUTH_XOR_EXPR'
       These nodes represent logical and, logical or, and logical
       exclusive or.  They are strict; both arguments are always
       evaluated.  There are no corresponding operators in C or C++, but
       the front end will sometimes generate these expressions anyhow, if
       it can tell that strictness does not matter.  The type of the
!      operands and that of the result are always of `BOOLEAN_TYPE' or
!      `INTEGER_TYPE'.
  
! `POINTER_PLUS_EXPR'
       This node represents pointer arithmetic.  The first operand is
       always a pointer/reference type.  The second operand is always an
       unsigned integer type compatible with sizetype.  This is the only
       binary arithmetic operand that can operate on pointer types.
  
! `PLUS_EXPR'
! `MINUS_EXPR'
! `MULT_EXPR'
       These nodes represent various binary arithmetic operations.
       Respectively, these operations are addition, subtraction (of the
       second operand from the first) and multiplication.  Their operands
--- 8636,8795 ----
  10.6.3 Unary and Binary Expressions
  -----------------------------------
  
! 'NEGATE_EXPR'
       These nodes represent unary negation of the single operand, for
       both integer and floating-point types.  The type of negation can be
       determined by looking at the type of the expression.
  
       The behavior of this operation on signed arithmetic overflow is
!      controlled by the 'flag_wrapv' and 'flag_trapv' variables.
  
! 'ABS_EXPR'
       These nodes represent the absolute value of the single operand, for
       both integer and floating-point types.  This is typically used to
!      implement the 'abs', 'labs' and 'llabs' builtins for integer types,
!      and the 'fabs', 'fabsf' and 'fabsl' builtins for floating point
!      types.  The type of abs operation can be determined by looking at
!      the type of the expression.
  
       This node is not used for complex types.  To represent the modulus
!      or complex abs of a complex value, use the 'BUILT_IN_CABS',
!      'BUILT_IN_CABSF' or 'BUILT_IN_CABSL' builtins, as used to implement
!      the C99 'cabs', 'cabsf' and 'cabsl' built-in functions.
  
! 'BIT_NOT_EXPR'
       These nodes represent bitwise complement, and will always have
       integral type.  The only operand is the value to be complemented.
  
! 'TRUTH_NOT_EXPR'
       These nodes represent logical negation, and will always have
       integral (or boolean) type.  The operand is the value being
!      negated.  The type of the operand and that of the result are always
!      of 'BOOLEAN_TYPE' or 'INTEGER_TYPE'.
  
! 'PREDECREMENT_EXPR'
! 'PREINCREMENT_EXPR'
! 'POSTDECREMENT_EXPR'
! 'POSTINCREMENT_EXPR'
       These nodes represent increment and decrement expressions.  The
       value of the single operand is computed, and the operand
!      incremented or decremented.  In the case of 'PREDECREMENT_EXPR' and
!      'PREINCREMENT_EXPR', the value of the expression is the value
       resulting after the increment or decrement; in the case of
!      'POSTDECREMENT_EXPR' and 'POSTINCREMENT_EXPR' is the value before
       the increment or decrement occurs.  The type of the operand, like
       that of the result, will be either integral, boolean, or
       floating-point.
  
! 'FIX_TRUNC_EXPR'
       These nodes represent conversion of a floating-point value to an
       integer.  The single operand will have a floating-point type, while
       the complete expression will have an integral (or boolean) type.
       The operand is rounded towards zero.
  
! 'FLOAT_EXPR'
       These nodes represent conversion of an integral (or boolean) value
       to a floating-point value.  The single operand will have integral
       type, while the complete expression will have a floating-point
       type.
  
       FIXME: How is the operand supposed to be rounded?  Is this
!      dependent on '-mieee'?
  
! 'COMPLEX_EXPR'
       These nodes are used to represent complex numbers constructed from
       two expressions of the same (integer or real) type.  The first
       operand is the real part and the second operand is the imaginary
       part.
  
! 'CONJ_EXPR'
       These nodes represent the conjugate of their operand.
  
! 'REALPART_EXPR'
! 'IMAGPART_EXPR'
       These nodes represent respectively the real and the imaginary parts
       of complex numbers (their sole argument).
  
! 'NON_LVALUE_EXPR'
       These nodes indicate that their one and only operand is not an
       lvalue.  A back end can treat these identically to the single
       operand.
  
! 'NOP_EXPR'
       These nodes are used to represent conversions that do not require
!      any code-generation.  For example, conversion of a 'char*' to an
!      'int*' does not require any code be generated; such a conversion is
!      represented by a 'NOP_EXPR'.  The single operand is the expression
       to be converted.  The conversion from a pointer to a reference is
!      also represented with a 'NOP_EXPR'.
  
! 'CONVERT_EXPR'
!      These nodes are similar to 'NOP_EXPR's, but are used in those
       situations where code may need to be generated.  For example, if an
!      'int*' is converted to an 'int' code may need to be generated on
       some platforms.  These nodes are never used for C++-specific
!      conversions, like conversions between pointers to different classes
!      in an inheritance hierarchy.  Any adjustments that need to be made
!      in such cases are always indicated explicitly.  Similarly, a
!      user-defined conversion is never represented by a 'CONVERT_EXPR';
!      instead, the function calls are made explicit.
  
! 'FIXED_CONVERT_EXPR'
       These nodes are used to represent conversions that involve
       fixed-point values.  For example, from a fixed-point value to
       another fixed-point value, from an integer to a fixed-point value,
!      from a fixed-point value to an integer, from a floating-point value
!      to a fixed-point value, or from a fixed-point value to a
       floating-point value.
  
! 'LSHIFT_EXPR'
! 'RSHIFT_EXPR'
       These nodes represent left and right shifts, respectively.  The
       first operand is the value to shift; it will always be of integral
       type.  The second operand is an expression for the number of bits
       by which to shift.  Right shift should be treated as arithmetic,
!      i.e., the high-order bits should be zero-filled when the expression
!      has unsigned type and filled with the sign bit when the expression
!      has signed type.  Note that the result is undefined if the second
!      operand is larger than or equal to the first operand's type size.
!      Unlike most nodes, these can have a vector as first operand and a
!      scalar as second operand.
  
! 'BIT_IOR_EXPR'
! 'BIT_XOR_EXPR'
! 'BIT_AND_EXPR'
       These nodes represent bitwise inclusive or, bitwise exclusive or,
       and bitwise and, respectively.  Both operands will always have
       integral type.
  
! 'TRUTH_ANDIF_EXPR'
! 'TRUTH_ORIF_EXPR'
       These nodes represent logical "and" and logical "or", respectively.
       These operators are not strict; i.e., the second operand is
       evaluated only if the value of the expression is not determined by
!      evaluation of the first operand.  The type of the operands and that
!      of the result are always of 'BOOLEAN_TYPE' or 'INTEGER_TYPE'.
  
! 'TRUTH_AND_EXPR'
! 'TRUTH_OR_EXPR'
! 'TRUTH_XOR_EXPR'
       These nodes represent logical and, logical or, and logical
       exclusive or.  They are strict; both arguments are always
       evaluated.  There are no corresponding operators in C or C++, but
       the front end will sometimes generate these expressions anyhow, if
       it can tell that strictness does not matter.  The type of the
!      operands and that of the result are always of 'BOOLEAN_TYPE' or
!      'INTEGER_TYPE'.
  
! 'POINTER_PLUS_EXPR'
       This node represents pointer arithmetic.  The first operand is
       always a pointer/reference type.  The second operand is always an
       unsigned integer type compatible with sizetype.  This is the only
       binary arithmetic operand that can operate on pointer types.
  
! 'PLUS_EXPR'
! 'MINUS_EXPR'
! 'MULT_EXPR'
       These nodes represent various binary arithmetic operations.
       Respectively, these operations are addition, subtraction (of the
       second operand from the first) and multiplication.  Their operands
*************** File: gccint.info,  Node: Unary and Bina
*** 8963,9036 ****
       integral type.
  
       The behavior of these operations on signed arithmetic overflow is
!      controlled by the `flag_wrapv' and `flag_trapv' variables.
  
! `MULT_HIGHPART_EXPR'
       This node represents the "high-part" of a widening multiplication.
       For an integral type with B bits of precision, the result is the
       most significant B bits of the full 2B product.
  
! `RDIV_EXPR'
       This node represents a floating point division operation.
  
! `TRUNC_DIV_EXPR'
! `FLOOR_DIV_EXPR'
! `CEIL_DIV_EXPR'
! `ROUND_DIV_EXPR'
       These nodes represent integer division operations that return an
!      integer result.  `TRUNC_DIV_EXPR' rounds towards zero,
!      `FLOOR_DIV_EXPR' rounds towards negative infinity, `CEIL_DIV_EXPR'
!      rounds towards positive infinity and `ROUND_DIV_EXPR' rounds to
!      the closest integer.  Integer division in C and C++ is truncating,
!      i.e. `TRUNC_DIV_EXPR'.
  
       The behavior of these operations on signed arithmetic overflow,
       when dividing the minimum signed integer by minus one, is
!      controlled by the `flag_wrapv' and `flag_trapv' variables.
  
! `TRUNC_MOD_EXPR'
! `FLOOR_MOD_EXPR'
! `CEIL_MOD_EXPR'
! `ROUND_MOD_EXPR'
       These nodes represent the integer remainder or modulus operation.
!      The integer modulus of two operands `a' and `b' is defined as `a -
       (a/b)*b' where the division calculated using the corresponding
!      division operator.  Hence for `TRUNC_MOD_EXPR' this definition
       assumes division using truncation towards zero, i.e.
!      `TRUNC_DIV_EXPR'.  Integer remainder in C and C++ uses truncating
!      division, i.e. `TRUNC_MOD_EXPR'.
  
! `EXACT_DIV_EXPR'
!      The `EXACT_DIV_EXPR' code is used to represent integer divisions
       where the numerator is known to be an exact multiple of the
       denominator.  This allows the backend to choose between the faster
!      of `TRUNC_DIV_EXPR', `CEIL_DIV_EXPR' and `FLOOR_DIV_EXPR' for the
       current target.
  
! `LT_EXPR'
! `LE_EXPR'
! `GT_EXPR'
! `GE_EXPR'
! `EQ_EXPR'
! `NE_EXPR'
       These nodes represent the less than, less than or equal to, greater
       than, greater than or equal to, equal, and not equal comparison
       operators.  The first and second operands will either be both of
       integral type, both of floating type or both of vector type.  The
       result type of these expressions will always be of integral,
       boolean or signed integral vector type.  These operations return
!      the result type's zero value for false, the result type's one
!      value for true, and a vector whose elements are zero (false) or
!      minus one (true) for vectors.
  
       For floating point comparisons, if we honor IEEE NaNs and either
!      operand is NaN, then `NE_EXPR' always returns true and the
       remaining operators always return false.  On some targets,
       comparisons against an IEEE NaN, other than equality and
       inequality, may generate a floating point exception.
  
! `ORDERED_EXPR'
! `UNORDERED_EXPR'
       These nodes represent non-trapping ordered and unordered comparison
       operators.  These operations take two floating point operands and
       determine whether they are ordered or unordered relative to each
--- 8798,8871 ----
       integral type.
  
       The behavior of these operations on signed arithmetic overflow is
!      controlled by the 'flag_wrapv' and 'flag_trapv' variables.
  
! 'MULT_HIGHPART_EXPR'
       This node represents the "high-part" of a widening multiplication.
       For an integral type with B bits of precision, the result is the
       most significant B bits of the full 2B product.
  
! 'RDIV_EXPR'
       This node represents a floating point division operation.
  
! 'TRUNC_DIV_EXPR'
! 'FLOOR_DIV_EXPR'
! 'CEIL_DIV_EXPR'
! 'ROUND_DIV_EXPR'
       These nodes represent integer division operations that return an
!      integer result.  'TRUNC_DIV_EXPR' rounds towards zero,
!      'FLOOR_DIV_EXPR' rounds towards negative infinity, 'CEIL_DIV_EXPR'
!      rounds towards positive infinity and 'ROUND_DIV_EXPR' rounds to the
!      closest integer.  Integer division in C and C++ is truncating, i.e.
!      'TRUNC_DIV_EXPR'.
  
       The behavior of these operations on signed arithmetic overflow,
       when dividing the minimum signed integer by minus one, is
!      controlled by the 'flag_wrapv' and 'flag_trapv' variables.
  
! 'TRUNC_MOD_EXPR'
! 'FLOOR_MOD_EXPR'
! 'CEIL_MOD_EXPR'
! 'ROUND_MOD_EXPR'
       These nodes represent the integer remainder or modulus operation.
!      The integer modulus of two operands 'a' and 'b' is defined as 'a -
       (a/b)*b' where the division calculated using the corresponding
!      division operator.  Hence for 'TRUNC_MOD_EXPR' this definition
       assumes division using truncation towards zero, i.e.
!      'TRUNC_DIV_EXPR'.  Integer remainder in C and C++ uses truncating
!      division, i.e. 'TRUNC_MOD_EXPR'.
  
! 'EXACT_DIV_EXPR'
!      The 'EXACT_DIV_EXPR' code is used to represent integer divisions
       where the numerator is known to be an exact multiple of the
       denominator.  This allows the backend to choose between the faster
!      of 'TRUNC_DIV_EXPR', 'CEIL_DIV_EXPR' and 'FLOOR_DIV_EXPR' for the
       current target.
  
! 'LT_EXPR'
! 'LE_EXPR'
! 'GT_EXPR'
! 'GE_EXPR'
! 'EQ_EXPR'
! 'NE_EXPR'
       These nodes represent the less than, less than or equal to, greater
       than, greater than or equal to, equal, and not equal comparison
       operators.  The first and second operands will either be both of
       integral type, both of floating type or both of vector type.  The
       result type of these expressions will always be of integral,
       boolean or signed integral vector type.  These operations return
!      the result type's zero value for false, the result type's one value
!      for true, and a vector whose elements are zero (false) or minus one
!      (true) for vectors.
  
       For floating point comparisons, if we honor IEEE NaNs and either
!      operand is NaN, then 'NE_EXPR' always returns true and the
       remaining operators always return false.  On some targets,
       comparisons against an IEEE NaN, other than equality and
       inequality, may generate a floating point exception.
  
! 'ORDERED_EXPR'
! 'UNORDERED_EXPR'
       These nodes represent non-trapping ordered and unordered comparison
       operators.  These operations take two floating point operands and
       determine whether they are ordered or unordered relative to each
*************** File: gccint.info,  Node: Unary and Bina
*** 9041,9090 ****
       type's zero value for false, and the result type's one value for
       true.
  
! `UNLT_EXPR'
! `UNLE_EXPR'
! `UNGT_EXPR'
! `UNGE_EXPR'
! `UNEQ_EXPR'
! `LTGT_EXPR'
       These nodes represent the unordered comparison operators.  These
       operations take two floating point operands and determine whether
       the operands are unordered or are less than, less than or equal to,
       greater than, greater than or equal to, or equal respectively.  For
!      example, `UNLT_EXPR' returns true if either operand is an IEEE NaN
       or the first operand is less than the second.  With the possible
!      exception of `LTGT_EXPR', all of these operations are guaranteed
       not to generate a floating point exception.  The result type of
       these expressions will always be of integral or boolean type.
!      These operations return the result type's zero value for false,
!      and the result type's one value for true.
  
! `MODIFY_EXPR'
       These nodes represent assignment.  The left-hand side is the first
       operand; the right-hand side is the second operand.  The left-hand
!      side will be a `VAR_DECL', `INDIRECT_REF', `COMPONENT_REF', or
       other lvalue.
  
!      These nodes are used to represent not only assignment with `=' but
!      also compound assignments (like `+='), by reduction to `='
!      assignment.  In other words, the representation for `i += 3' looks
!      just like that for `i = i + 3'.
  
! `INIT_EXPR'
!      These nodes are just like `MODIFY_EXPR', but are used only when a
       variable is initialized, rather than assigned to subsequently.
!      This means that we can assume that the target of the
!      initialization is not used in computing its own value; any
!      reference to the lhs in computing the rhs is undefined.
  
! `COMPOUND_EXPR'
       These nodes represent comma-expressions.  The first operand is an
       expression whose value is computed and thrown away prior to the
       evaluation of the second operand.  The value of the entire
       expression is the value of the second operand.
  
! `COND_EXPR'
!      These nodes represent `?:' expressions.  The first operand is of
       boolean or integral type.  If it evaluates to a nonzero value, the
       second operand should be evaluated, and returned as the value of
       the expression.  Otherwise, the third operand is evaluated, and
--- 8876,8925 ----
       type's zero value for false, and the result type's one value for
       true.
  
! 'UNLT_EXPR'
! 'UNLE_EXPR'
! 'UNGT_EXPR'
! 'UNGE_EXPR'
! 'UNEQ_EXPR'
! 'LTGT_EXPR'
       These nodes represent the unordered comparison operators.  These
       operations take two floating point operands and determine whether
       the operands are unordered or are less than, less than or equal to,
       greater than, greater than or equal to, or equal respectively.  For
!      example, 'UNLT_EXPR' returns true if either operand is an IEEE NaN
       or the first operand is less than the second.  With the possible
!      exception of 'LTGT_EXPR', all of these operations are guaranteed
       not to generate a floating point exception.  The result type of
       these expressions will always be of integral or boolean type.
!      These operations return the result type's zero value for false, and
!      the result type's one value for true.
  
! 'MODIFY_EXPR'
       These nodes represent assignment.  The left-hand side is the first
       operand; the right-hand side is the second operand.  The left-hand
!      side will be a 'VAR_DECL', 'INDIRECT_REF', 'COMPONENT_REF', or
       other lvalue.
  
!      These nodes are used to represent not only assignment with '=' but
!      also compound assignments (like '+='), by reduction to '='
!      assignment.  In other words, the representation for 'i += 3' looks
!      just like that for 'i = i + 3'.
  
! 'INIT_EXPR'
!      These nodes are just like 'MODIFY_EXPR', but are used only when a
       variable is initialized, rather than assigned to subsequently.
!      This means that we can assume that the target of the initialization
!      is not used in computing its own value; any reference to the lhs in
!      computing the rhs is undefined.
  
! 'COMPOUND_EXPR'
       These nodes represent comma-expressions.  The first operand is an
       expression whose value is computed and thrown away prior to the
       evaluation of the second operand.  The value of the entire
       expression is the value of the second operand.
  
! 'COND_EXPR'
!      These nodes represent '?:' expressions.  The first operand is of
       boolean or integral type.  If it evaluates to a nonzero value, the
       second operand should be evaluated, and returned as the value of
       the expression.  Otherwise, the third operand is evaluated, and
*************** File: gccint.info,  Node: Unary and Bina
*** 9094,9126 ****
       expression, unless it unconditionally throws an exception or calls
       a noreturn function, in which case it should have void type.  The
       same constraints apply to the third operand.  This allows array
!      bounds checks to be represented conveniently as `(i >= 0 && i <
!      10) ? i : abort()'.
  
       As a GNU extension, the C language front-ends allow the second
!      operand of the `?:' operator may be omitted in the source.  For
!      example, `x ? : 3' is equivalent to `x ? x : 3', assuming that `x'
!      is an expression without side-effects.  In the tree
!      representation, however, the second operand is always present,
!      possibly protected by `SAVE_EXPR' if the first argument does cause
!      side-effects.
  
! `CALL_EXPR'
       These nodes are used to represent calls to functions, including
!      non-static member functions.  `CALL_EXPR's are implemented as
       expression nodes with a variable number of operands.  Rather than
!      using `TREE_OPERAND' to extract them, it is preferable to use the
!      specialized accessor macros and functions that operate
!      specifically on `CALL_EXPR' nodes.
  
!      `CALL_EXPR_FN' returns a pointer to the function to call; it is
!      always an expression whose type is a `POINTER_TYPE'.
  
       The number of arguments to the call is returned by
!      `call_expr_nargs', while the arguments themselves can be accessed
!      with the `CALL_EXPR_ARG' macro.  The arguments are zero-indexed
!      and numbered left-to-right.  You can iterate over the arguments
!      using `FOR_EACH_CALL_EXPR_ARG', as in:
  
            tree call, arg;
            call_expr_arg_iterator iter;
--- 8929,8960 ----
       expression, unless it unconditionally throws an exception or calls
       a noreturn function, in which case it should have void type.  The
       same constraints apply to the third operand.  This allows array
!      bounds checks to be represented conveniently as '(i >= 0 && i < 10)
!      ? i : abort()'.
  
       As a GNU extension, the C language front-ends allow the second
!      operand of the '?:' operator may be omitted in the source.  For
!      example, 'x ? : 3' is equivalent to 'x ? x : 3', assuming that 'x'
!      is an expression without side-effects.  In the tree representation,
!      however, the second operand is always present, possibly protected
!      by 'SAVE_EXPR' if the first argument does cause side-effects.
  
! 'CALL_EXPR'
       These nodes are used to represent calls to functions, including
!      non-static member functions.  'CALL_EXPR's are implemented as
       expression nodes with a variable number of operands.  Rather than
!      using 'TREE_OPERAND' to extract them, it is preferable to use the
!      specialized accessor macros and functions that operate specifically
!      on 'CALL_EXPR' nodes.
  
!      'CALL_EXPR_FN' returns a pointer to the function to call; it is
!      always an expression whose type is a 'POINTER_TYPE'.
  
       The number of arguments to the call is returned by
!      'call_expr_nargs', while the arguments themselves can be accessed
!      with the 'CALL_EXPR_ARG' macro.  The arguments are zero-indexed and
!      numbered left-to-right.  You can iterate over the arguments using
!      'FOR_EACH_CALL_EXPR_ARG', as in:
  
            tree call, arg;
            call_expr_arg_iterator iter;
*************** File: gccint.info,  Node: Unary and Bina
*** 9129,9231 ****
              ...;
  
       For non-static member functions, there will be an operand
!      corresponding to the `this' pointer.  There will always be
       expressions corresponding to all of the arguments, even if the
       function is declared with default arguments and some arguments are
       not explicitly provided at the call sites.
  
!      `CALL_EXPR's also have a `CALL_EXPR_STATIC_CHAIN' operand that is
       used to implement nested functions.  This operand is otherwise
       null.
  
! `CLEANUP_POINT_EXPR'
       These nodes represent full-expressions.  The single operand is an
       expression to evaluate.  Any destructor calls engendered by the
       creation of temporaries during the evaluation of that expression
       should be performed immediately after the expression is evaluated.
  
! `CONSTRUCTOR'
       These nodes represent the brace-enclosed initializers for a
!      structure or an array.  They contain a sequence of component
!      values made out of a vector of constructor_elt, which is a
!      (`INDEX', `VALUE') pair.
  
!      If the `TREE_TYPE' of the `CONSTRUCTOR' is a `RECORD_TYPE',
!      `UNION_TYPE' or `QUAL_UNION_TYPE' then the `INDEX' of each node in
!      the sequence will be a `FIELD_DECL' and the `VALUE' will be the
       expression used to initialize that field.
  
!      If the `TREE_TYPE' of the `CONSTRUCTOR' is an `ARRAY_TYPE', then
!      the `INDEX' of each node in the sequence will be an `INTEGER_CST'
!      or a `RANGE_EXPR' of two `INTEGER_CST's.  A single `INTEGER_CST'
       indicates which element of the array is being assigned to.  A
!      `RANGE_EXPR' indicates an inclusive range of elements to
!      initialize.  In both cases the `VALUE' is the corresponding
       initializer.  It is re-evaluated for each element of a
!      `RANGE_EXPR'.  If the `INDEX' is `NULL_TREE', then the initializer
       is for the next available array element.
  
       In the front end, you should not depend on the fields appearing in
       any particular order.  However, in the middle end, fields must
!      appear in declaration order.  You should not assume that all
!      fields will be represented.  Unrepresented fields will be cleared
       (zeroed), unless the CONSTRUCTOR_NO_CLEARING flag is set, in which
       case their value becomes undefined.
  
! `COMPOUND_LITERAL_EXPR'
       These nodes represent ISO C99 compound literals.  The
!      `COMPOUND_LITERAL_EXPR_DECL_EXPR' is a `DECL_EXPR' containing an
!      anonymous `VAR_DECL' for the unnamed object represented by the
!      compound literal; the `DECL_INITIAL' of that `VAR_DECL' is a
!      `CONSTRUCTOR' representing the brace-enclosed list of initializers
!      in the compound literal.  That anonymous `VAR_DECL' can also be
!      accessed directly by the `COMPOUND_LITERAL_EXPR_DECL' macro.
  
! `SAVE_EXPR'
!      A `SAVE_EXPR' represents an expression (possibly involving
       side-effects) that is used more than once.  The side-effects should
       occur only the first time the expression is evaluated.  Subsequent
       uses should just reuse the computed value.  The first operand to
!      the `SAVE_EXPR' is the expression to evaluate.  The side-effects
!      should be executed where the `SAVE_EXPR' is first encountered in a
       depth-first preorder traversal of the expression tree.
  
! `TARGET_EXPR'
!      A `TARGET_EXPR' represents a temporary object.  The first operand
!      is a `VAR_DECL' for the temporary variable.  The second operand is
       the initializer for the temporary.  The initializer is evaluated
       and, if non-void, copied (bitwise) into the temporary.  If the
       initializer is void, that means that it will perform the
       initialization itself.
  
!      Often, a `TARGET_EXPR' occurs on the right-hand side of an
       assignment, or as the second operand to a comma-expression which is
!      itself the right-hand side of an assignment, etc.  In this case,
!      we say that the `TARGET_EXPR' is "normal"; otherwise, we say it is
!      "orphaned".  For a normal `TARGET_EXPR' the temporary variable
       should be treated as an alias for the left-hand side of the
       assignment, rather than as a new temporary variable.
  
!      The third operand to the `TARGET_EXPR', if present, is a
       cleanup-expression (i.e., destructor call) for the temporary.  If
       this expression is orphaned, then this expression must be executed
       when the statement containing this expression is complete.  These
       cleanups must always be executed in the order opposite to that in
       which they were encountered.  Note that if a temporary is created
       on one branch of a conditional operator (i.e., in the second or
!      third operand to a `COND_EXPR'), the cleanup must be run only if
       that branch is actually executed.
  
! `VA_ARG_EXPR'
       This node is used to implement support for the C/C++ variable
!      argument-list mechanism.  It represents expressions like `va_arg
!      (ap, type)'.  Its `TREE_TYPE' yields the tree representation for
!      `type' and its sole argument yields the representation for `ap'.
  
! `ANNOTATE_EXPR'
!      This node is used to attach markers to an expression. The first
!      operand is the annotated expression, the second is an
!      `INTEGER_CST' with a value from `enum annot_expr_kind'.
  
  
  File: gccint.info,  Node: Vectors,  Prev: Unary and Binary Expressions,  Up: Expression trees
--- 8963,9066 ----
              ...;
  
       For non-static member functions, there will be an operand
!      corresponding to the 'this' pointer.  There will always be
       expressions corresponding to all of the arguments, even if the
       function is declared with default arguments and some arguments are
       not explicitly provided at the call sites.
  
!      'CALL_EXPR's also have a 'CALL_EXPR_STATIC_CHAIN' operand that is
       used to implement nested functions.  This operand is otherwise
       null.
  
! 'CLEANUP_POINT_EXPR'
       These nodes represent full-expressions.  The single operand is an
       expression to evaluate.  Any destructor calls engendered by the
       creation of temporaries during the evaluation of that expression
       should be performed immediately after the expression is evaluated.
  
! 'CONSTRUCTOR'
       These nodes represent the brace-enclosed initializers for a
!      structure or an array.  They contain a sequence of component values
!      made out of a vector of constructor_elt, which is a ('INDEX',
!      'VALUE') pair.
  
!      If the 'TREE_TYPE' of the 'CONSTRUCTOR' is a 'RECORD_TYPE',
!      'UNION_TYPE' or 'QUAL_UNION_TYPE' then the 'INDEX' of each node in
!      the sequence will be a 'FIELD_DECL' and the 'VALUE' will be the
       expression used to initialize that field.
  
!      If the 'TREE_TYPE' of the 'CONSTRUCTOR' is an 'ARRAY_TYPE', then
!      the 'INDEX' of each node in the sequence will be an 'INTEGER_CST'
!      or a 'RANGE_EXPR' of two 'INTEGER_CST's.  A single 'INTEGER_CST'
       indicates which element of the array is being assigned to.  A
!      'RANGE_EXPR' indicates an inclusive range of elements to
!      initialize.  In both cases the 'VALUE' is the corresponding
       initializer.  It is re-evaluated for each element of a
!      'RANGE_EXPR'.  If the 'INDEX' is 'NULL_TREE', then the initializer
       is for the next available array element.
  
       In the front end, you should not depend on the fields appearing in
       any particular order.  However, in the middle end, fields must
!      appear in declaration order.  You should not assume that all fields
!      will be represented.  Unrepresented fields will be cleared
       (zeroed), unless the CONSTRUCTOR_NO_CLEARING flag is set, in which
       case their value becomes undefined.
  
! 'COMPOUND_LITERAL_EXPR'
       These nodes represent ISO C99 compound literals.  The
!      'COMPOUND_LITERAL_EXPR_DECL_EXPR' is a 'DECL_EXPR' containing an
!      anonymous 'VAR_DECL' for the unnamed object represented by the
!      compound literal; the 'DECL_INITIAL' of that 'VAR_DECL' is a
!      'CONSTRUCTOR' representing the brace-enclosed list of initializers
!      in the compound literal.  That anonymous 'VAR_DECL' can also be
!      accessed directly by the 'COMPOUND_LITERAL_EXPR_DECL' macro.
  
! 'SAVE_EXPR'
! 
!      A 'SAVE_EXPR' represents an expression (possibly involving
       side-effects) that is used more than once.  The side-effects should
       occur only the first time the expression is evaluated.  Subsequent
       uses should just reuse the computed value.  The first operand to
!      the 'SAVE_EXPR' is the expression to evaluate.  The side-effects
!      should be executed where the 'SAVE_EXPR' is first encountered in a
       depth-first preorder traversal of the expression tree.
  
! 'TARGET_EXPR'
!      A 'TARGET_EXPR' represents a temporary object.  The first operand
!      is a 'VAR_DECL' for the temporary variable.  The second operand is
       the initializer for the temporary.  The initializer is evaluated
       and, if non-void, copied (bitwise) into the temporary.  If the
       initializer is void, that means that it will perform the
       initialization itself.
  
!      Often, a 'TARGET_EXPR' occurs on the right-hand side of an
       assignment, or as the second operand to a comma-expression which is
!      itself the right-hand side of an assignment, etc.  In this case, we
!      say that the 'TARGET_EXPR' is "normal"; otherwise, we say it is
!      "orphaned".  For a normal 'TARGET_EXPR' the temporary variable
       should be treated as an alias for the left-hand side of the
       assignment, rather than as a new temporary variable.
  
!      The third operand to the 'TARGET_EXPR', if present, is a
       cleanup-expression (i.e., destructor call) for the temporary.  If
       this expression is orphaned, then this expression must be executed
       when the statement containing this expression is complete.  These
       cleanups must always be executed in the order opposite to that in
       which they were encountered.  Note that if a temporary is created
       on one branch of a conditional operator (i.e., in the second or
!      third operand to a 'COND_EXPR'), the cleanup must be run only if
       that branch is actually executed.
  
! 'VA_ARG_EXPR'
       This node is used to implement support for the C/C++ variable
!      argument-list mechanism.  It represents expressions like 'va_arg
!      (ap, type)'.  Its 'TREE_TYPE' yields the tree representation for
!      'type' and its sole argument yields the representation for 'ap'.
  
! 'ANNOTATE_EXPR'
!      This node is used to attach markers to an expression.  The first
!      operand is the annotated expression, the second is an 'INTEGER_CST'
!      with a value from 'enum annot_expr_kind'.
  
  
  File: gccint.info,  Node: Vectors,  Prev: Unary and Binary Expressions,  Up: Expression trees
*************** File: gccint.info,  Node: Vectors,  Prev
*** 9233,9240 ****
  10.6.4 Vectors
  --------------
  
! `VEC_LSHIFT_EXPR'
! `VEC_RSHIFT_EXPR'
       These nodes represent whole vector left and right shifts,
       respectively.  The first operand is the vector to shift; it will
       always be of vector type.  The second operand is an expression for
--- 9068,9075 ----
  10.6.4 Vectors
  --------------
  
! 'VEC_LSHIFT_EXPR'
! 'VEC_RSHIFT_EXPR'
       These nodes represent whole vector left and right shifts,
       respectively.  The first operand is the vector to shift; it will
       always be of vector type.  The second operand is an expression for
*************** File: gccint.info,  Node: Vectors,  Prev
*** 9242,9294 ****
       undefined if the second operand is larger than or equal to the
       first operand's type size.
  
! `VEC_WIDEN_MULT_HI_EXPR'
! `VEC_WIDEN_MULT_LO_EXPR'
       These nodes represent widening vector multiplication of the high
       and low parts of the two input vectors, respectively.  Their
!      operands are vectors that contain the same number of elements
!      (`N') of the same integral type.  The result is a vector that
!      contains half as many elements, of an integral type whose size is
!      twice as wide.  In the case of `VEC_WIDEN_MULT_HI_EXPR' the high
!      `N/2' elements of the two vector are multiplied to produce the
!      vector of `N/2' products. In the case of `VEC_WIDEN_MULT_LO_EXPR'
!      the low `N/2' elements of the two vector are multiplied to produce
!      the vector of `N/2' products.
  
! `VEC_UNPACK_HI_EXPR'
! `VEC_UNPACK_LO_EXPR'
       These nodes represent unpacking of the high and low parts of the
       input vector, respectively.  The single operand is a vector that
!      contains `N' elements of the same integral or floating point type.
       The result is a vector that contains half as many elements, of an
       integral or floating point type whose size is twice as wide.  In
!      the case of `VEC_UNPACK_HI_EXPR' the high `N/2' elements of the
       vector are extracted and widened (promoted).  In the case of
!      `VEC_UNPACK_LO_EXPR' the low `N/2' elements of the vector are
       extracted and widened (promoted).
  
! `VEC_UNPACK_FLOAT_HI_EXPR'
! `VEC_UNPACK_FLOAT_LO_EXPR'
       These nodes represent unpacking of the high and low parts of the
       input vector, where the values are converted from fixed point to
!      floating point.  The single operand is a vector that contains `N'
       elements of the same integral type.  The result is a vector that
       contains half as many elements of a floating point type whose size
!      is twice as wide.  In the case of `VEC_UNPACK_HI_EXPR' the high
!      `N/2' elements of the vector are extracted, converted and widened.
!      In the case of `VEC_UNPACK_LO_EXPR' the low `N/2' elements of the
       vector are extracted, converted and widened.
  
! `VEC_PACK_TRUNC_EXPR'
!      This node represents packing of truncated elements of the two
!      input vectors into the output vector.  Input operands are vectors
!      that contain the same number of elements of the same integral or
!      floating point type.  The result is a vector that contains twice
!      as many elements of an integral or floating point type whose size
!      is half as wide. The elements of the two vectors are demoted and
       merged (concatenated) to form the output vector.
  
! `VEC_PACK_SAT_EXPR'
       This node represents packing of elements of the two input vectors
       into the output vector using saturation.  Input operands are
       vectors that contain the same number of elements of the same
--- 9077,9129 ----
       undefined if the second operand is larger than or equal to the
       first operand's type size.
  
! 'VEC_WIDEN_MULT_HI_EXPR'
! 'VEC_WIDEN_MULT_LO_EXPR'
       These nodes represent widening vector multiplication of the high
       and low parts of the two input vectors, respectively.  Their
!      operands are vectors that contain the same number of elements ('N')
!      of the same integral type.  The result is a vector that contains
!      half as many elements, of an integral type whose size is twice as
!      wide.  In the case of 'VEC_WIDEN_MULT_HI_EXPR' the high 'N/2'
!      elements of the two vector are multiplied to produce the vector of
!      'N/2' products.  In the case of 'VEC_WIDEN_MULT_LO_EXPR' the low
!      'N/2' elements of the two vector are multiplied to produce the
!      vector of 'N/2' products.
  
! 'VEC_UNPACK_HI_EXPR'
! 'VEC_UNPACK_LO_EXPR'
       These nodes represent unpacking of the high and low parts of the
       input vector, respectively.  The single operand is a vector that
!      contains 'N' elements of the same integral or floating point type.
       The result is a vector that contains half as many elements, of an
       integral or floating point type whose size is twice as wide.  In
!      the case of 'VEC_UNPACK_HI_EXPR' the high 'N/2' elements of the
       vector are extracted and widened (promoted).  In the case of
!      'VEC_UNPACK_LO_EXPR' the low 'N/2' elements of the vector are
       extracted and widened (promoted).
  
! 'VEC_UNPACK_FLOAT_HI_EXPR'
! 'VEC_UNPACK_FLOAT_LO_EXPR'
       These nodes represent unpacking of the high and low parts of the
       input vector, where the values are converted from fixed point to
!      floating point.  The single operand is a vector that contains 'N'
       elements of the same integral type.  The result is a vector that
       contains half as many elements of a floating point type whose size
!      is twice as wide.  In the case of 'VEC_UNPACK_HI_EXPR' the high
!      'N/2' elements of the vector are extracted, converted and widened.
!      In the case of 'VEC_UNPACK_LO_EXPR' the low 'N/2' elements of the
       vector are extracted, converted and widened.
  
! 'VEC_PACK_TRUNC_EXPR'
!      This node represents packing of truncated elements of the two input
!      vectors into the output vector.  Input operands are vectors that
!      contain the same number of elements of the same integral or
!      floating point type.  The result is a vector that contains twice as
!      many elements of an integral or floating point type whose size is
!      half as wide.  The elements of the two vectors are demoted and
       merged (concatenated) to form the output vector.
  
! 'VEC_PACK_SAT_EXPR'
       This node represents packing of elements of the two input vectors
       into the output vector using saturation.  Input operands are
       vectors that contain the same number of elements of the same
*************** File: gccint.info,  Node: Vectors,  Prev
*** 9297,9303 ****
       elements of the two vectors are demoted and merged (concatenated)
       to form the output vector.
  
! `VEC_PACK_FIX_TRUNC_EXPR'
       This node represents packing of elements of the two input vectors
       into the output vector, where the values are converted from
       floating point to fixed point.  Input operands are vectors that
--- 9132,9138 ----
       elements of the two vectors are demoted and merged (concatenated)
       to form the output vector.
  
! 'VEC_PACK_FIX_TRUNC_EXPR'
       This node represents packing of elements of the two input vectors
       into the output vector, where the values are converted from
       floating point to fixed point.  Input operands are vectors that
*************** File: gccint.info,  Node: Vectors,  Prev
*** 9306,9333 ****
       integral type whose size is half as wide.  The elements of the two
       vectors are merged (concatenated) to form the output vector.
  
! `VEC_COND_EXPR'
!      These nodes represent `?:' expressions.  The three operands must be
       vectors of the same size and number of elements.  The second and
       third operands must have the same type as the entire expression.
!      The first operand is of signed integral vector type.  If an
!      element of the first operand evaluates to a zero value, the
!      corresponding element of the result is taken from the third
!      operand. If it evaluates to a minus one value, it is taken from
!      the second operand. It should never evaluate to any other value
!      currently, but optimizations should not rely on that property. In
!      contrast with a `COND_EXPR', all operands are always evaluated.
  
! `SAD_EXPR'
       This node represents the Sum of Absolute Differences operation.
       The three operands must be vectors of integral types.  The first
!      and second operand must have the same type.  The size of the
!      vector element of the third operand must be at lease twice of the
!      size of the vector element of the first and second one.  The SAD
!      is calculated between the first and second operands, added to the
       third operand, and returned.
  
- 
  
  File: gccint.info,  Node: Statements,  Next: Functions,  Prev: Expression trees,  Up: GENERIC
  
--- 9141,9167 ----
       integral type whose size is half as wide.  The elements of the two
       vectors are merged (concatenated) to form the output vector.
  
! 'VEC_COND_EXPR'
!      These nodes represent '?:' expressions.  The three operands must be
       vectors of the same size and number of elements.  The second and
       third operands must have the same type as the entire expression.
!      The first operand is of signed integral vector type.  If an element
!      of the first operand evaluates to a zero value, the corresponding
!      element of the result is taken from the third operand.  If it
!      evaluates to a minus one value, it is taken from the second
!      operand.  It should never evaluate to any other value currently,
!      but optimizations should not rely on that property.  In contrast
!      with a 'COND_EXPR', all operands are always evaluated.
  
! 'SAD_EXPR'
       This node represents the Sum of Absolute Differences operation.
       The three operands must be vectors of integral types.  The first
!      and second operand must have the same type.  The size of the vector
!      element of the third operand must be at lease twice of the size of
!      the vector element of the first and second one.  The SAD is
!      calculated between the first and second operands, added to the
       third operand, and returned.
  
  
  File: gccint.info,  Node: Statements,  Next: Functions,  Prev: Expression trees,  Up: GENERIC
  
*************** File: gccint.info,  Node: Statements,  N
*** 9335,9342 ****
  ===============
  
  Most statements in GIMPLE are assignment statements, represented by
! `GIMPLE_ASSIGN'.  No other C expressions can appear at statement level;
! a reference to a volatile object is converted into a `GIMPLE_ASSIGN'.
  
   There are also several varieties of complex statements.
  
--- 9169,9176 ----
  ===============
  
  Most statements in GIMPLE are assignment statements, represented by
! 'GIMPLE_ASSIGN'.  No other C expressions can appear at statement level;
! a reference to a volatile object is converted into a 'GIMPLE_ASSIGN'.
  
   There are also several varieties of complex statements.
  
*************** File: gccint.info,  Node: Basic Statemen
*** 9357,9452 ****
  10.7.1 Basic Statements
  -----------------------
  
! `ASM_EXPR'
       Used to represent an inline assembly statement.  For an inline
       assembly statement like:
            asm ("mov x, y");
!      The `ASM_STRING' macro will return a `STRING_CST' node for `"mov
!      x, y"'.  If the original statement made use of the
!      extended-assembly syntax, then `ASM_OUTPUTS', `ASM_INPUTS', and
!      `ASM_CLOBBERS' will be the outputs, inputs, and clobbers for the
!      statement, represented as `STRING_CST' nodes.  The
!      extended-assembly syntax looks like:
            asm ("fsinx %1,%0" : "=f" (result) : "f" (angle));
!      The first string is the `ASM_STRING', containing the instruction
       template.  The next two strings are the output and inputs,
       respectively; this statement has no clobbers.  As this example
!      indicates, "plain" assembly statements are merely a special case
!      of extended assembly statements; they have no cv-qualifiers,
!      outputs, inputs, or clobbers.  All of the strings will be
!      `NUL'-terminated, and will contain no embedded `NUL'-characters.
  
!      If the assembly statement is declared `volatile', or if the
       statement was not an extended assembly statement, and is therefore
!      implicitly volatile, then the predicate `ASM_VOLATILE_P' will hold
!      of the `ASM_EXPR'.
  
! `DECL_EXPR'
!      Used to represent a local declaration.  The `DECL_EXPR_DECL' macro
!      can be used to obtain the entity declared.  This declaration may
!      be a `LABEL_DECL', indicating that the label declared is a local
!      label.  (As an extension, GCC allows the declaration of labels
!      with scope.)  In C, this declaration may be a `FUNCTION_DECL',
       indicating the use of the GCC nested function extension.  For more
       information, *note Functions::.
  
! `LABEL_EXPR'
!      Used to represent a label.  The `LABEL_DECL' declared by this
!      statement can be obtained with the `LABEL_EXPR_LABEL' macro.  The
!      `IDENTIFIER_NODE' giving the name of the label can be obtained from
!      the `LABEL_DECL' with `DECL_NAME'.
  
! `GOTO_EXPR'
!      Used to represent a `goto' statement.  The `GOTO_DESTINATION' will
!      usually be a `LABEL_DECL'.  However, if the "computed goto"
!      extension has been used, the `GOTO_DESTINATION' will be an
       arbitrary expression indicating the destination.  This expression
       will always have pointer type.
  
! `RETURN_EXPR'
!      Used to represent a `return' statement.  Operand 0 represents the
!      value to return.  It should either be the `RESULT_DECL' for the
!      containing function, or a `MODIFY_EXPR' or `INIT_EXPR' setting the
!      function's `RESULT_DECL'.  It will be `NULL_TREE' if the statement
       was just
            return;
  
! `LOOP_EXPR'
!      These nodes represent "infinite" loops.  The `LOOP_EXPR_BODY'
       represents the body of the loop.  It should be executed forever,
!      unless an `EXIT_EXPR' is encountered.
  
! `EXIT_EXPR'
       These nodes represent conditional exits from the nearest enclosing
!      `LOOP_EXPR'.  The single operand is the condition; if it is
!      nonzero, then the loop should be exited.  An `EXIT_EXPR' will only
!      appear within a `LOOP_EXPR'.
  
! `SWITCH_STMT'
!      Used to represent a `switch' statement.  The `SWITCH_STMT_COND' is
       the expression on which the switch is occurring.  See the
!      documentation for an `IF_STMT' for more information on the
!      representation used for the condition.  The `SWITCH_STMT_BODY' is
!      the body of the switch statement.   The `SWITCH_STMT_TYPE' is the
       original type of switch expression as given in the source, before
       any compiler conversions.
  
! `CASE_LABEL_EXPR'
!      Use to represent a `case' label, range of `case' labels, or a
!      `default' label.  If `CASE_LOW' is `NULL_TREE', then this is a
!      `default' label.  Otherwise, if `CASE_HIGH' is `NULL_TREE', then
!      this is an ordinary `case' label.  In this case, `CASE_LOW' is an
!      expression giving the value of the label.  Both `CASE_LOW' and
!      `CASE_HIGH' are `INTEGER_CST' nodes.  These values will have the
       same type as the condition expression in the switch statement.
  
!      Otherwise, if both `CASE_LOW' and `CASE_HIGH' are defined, the
       statement is a range of case labels.  Such statements originate
       with the extension that allows users to write things of the form:
            case 2 ... 5:
!      The first value will be `CASE_LOW', while the second will be
!      `CASE_HIGH'.
! 
  
  
  File: gccint.info,  Node: Blocks,  Next: Statement Sequences,  Prev: Basic Statements,  Up: Statements
--- 9191,9291 ----
  10.7.1 Basic Statements
  -----------------------
  
! 'ASM_EXPR'
! 
       Used to represent an inline assembly statement.  For an inline
       assembly statement like:
            asm ("mov x, y");
!      The 'ASM_STRING' macro will return a 'STRING_CST' node for '"mov x,
!      y"'.  If the original statement made use of the extended-assembly
!      syntax, then 'ASM_OUTPUTS', 'ASM_INPUTS', and 'ASM_CLOBBERS' will
!      be the outputs, inputs, and clobbers for the statement, represented
!      as 'STRING_CST' nodes.  The extended-assembly syntax looks like:
            asm ("fsinx %1,%0" : "=f" (result) : "f" (angle));
!      The first string is the 'ASM_STRING', containing the instruction
       template.  The next two strings are the output and inputs,
       respectively; this statement has no clobbers.  As this example
!      indicates, "plain" assembly statements are merely a special case of
!      extended assembly statements; they have no cv-qualifiers, outputs,
!      inputs, or clobbers.  All of the strings will be 'NUL'-terminated,
!      and will contain no embedded 'NUL'-characters.
  
!      If the assembly statement is declared 'volatile', or if the
       statement was not an extended assembly statement, and is therefore
!      implicitly volatile, then the predicate 'ASM_VOLATILE_P' will hold
!      of the 'ASM_EXPR'.
  
! 'DECL_EXPR'
! 
!      Used to represent a local declaration.  The 'DECL_EXPR_DECL' macro
!      can be used to obtain the entity declared.  This declaration may be
!      a 'LABEL_DECL', indicating that the label declared is a local
!      label.  (As an extension, GCC allows the declaration of labels with
!      scope.)  In C, this declaration may be a 'FUNCTION_DECL',
       indicating the use of the GCC nested function extension.  For more
       information, *note Functions::.
  
! 'LABEL_EXPR'
  
!      Used to represent a label.  The 'LABEL_DECL' declared by this
!      statement can be obtained with the 'LABEL_EXPR_LABEL' macro.  The
!      'IDENTIFIER_NODE' giving the name of the label can be obtained from
!      the 'LABEL_DECL' with 'DECL_NAME'.
! 
! 'GOTO_EXPR'
! 
!      Used to represent a 'goto' statement.  The 'GOTO_DESTINATION' will
!      usually be a 'LABEL_DECL'.  However, if the "computed goto"
!      extension has been used, the 'GOTO_DESTINATION' will be an
       arbitrary expression indicating the destination.  This expression
       will always have pointer type.
  
! 'RETURN_EXPR'
! 
!      Used to represent a 'return' statement.  Operand 0 represents the
!      value to return.  It should either be the 'RESULT_DECL' for the
!      containing function, or a 'MODIFY_EXPR' or 'INIT_EXPR' setting the
!      function's 'RESULT_DECL'.  It will be 'NULL_TREE' if the statement
       was just
            return;
  
! 'LOOP_EXPR'
!      These nodes represent "infinite" loops.  The 'LOOP_EXPR_BODY'
       represents the body of the loop.  It should be executed forever,
!      unless an 'EXIT_EXPR' is encountered.
  
! 'EXIT_EXPR'
       These nodes represent conditional exits from the nearest enclosing
!      'LOOP_EXPR'.  The single operand is the condition; if it is
!      nonzero, then the loop should be exited.  An 'EXIT_EXPR' will only
!      appear within a 'LOOP_EXPR'.
  
! 'SWITCH_STMT'
! 
!      Used to represent a 'switch' statement.  The 'SWITCH_STMT_COND' is
       the expression on which the switch is occurring.  See the
!      documentation for an 'IF_STMT' for more information on the
!      representation used for the condition.  The 'SWITCH_STMT_BODY' is
!      the body of the switch statement.  The 'SWITCH_STMT_TYPE' is the
       original type of switch expression as given in the source, before
       any compiler conversions.
  
! 'CASE_LABEL_EXPR'
! 
!      Use to represent a 'case' label, range of 'case' labels, or a
!      'default' label.  If 'CASE_LOW' is 'NULL_TREE', then this is a
!      'default' label.  Otherwise, if 'CASE_HIGH' is 'NULL_TREE', then
!      this is an ordinary 'case' label.  In this case, 'CASE_LOW' is an
!      expression giving the value of the label.  Both 'CASE_LOW' and
!      'CASE_HIGH' are 'INTEGER_CST' nodes.  These values will have the
       same type as the condition expression in the switch statement.
  
!      Otherwise, if both 'CASE_LOW' and 'CASE_HIGH' are defined, the
       statement is a range of case labels.  Such statements originate
       with the extension that allows users to write things of the form:
            case 2 ... 5:
!      The first value will be 'CASE_LOW', while the second will be
!      'CASE_HIGH'.
  
  
  File: gccint.info,  Node: Blocks,  Next: Statement Sequences,  Prev: Basic Statements,  Up: Statements
*************** File: gccint.info,  Node: Blocks,  Next:
*** 9455,9486 ****
  -------------
  
  Block scopes and the variables they declare in GENERIC are expressed
! using the `BIND_EXPR' code, which in previous versions of GCC was
  primarily used for the C statement-expression extension.
  
!  Variables in a block are collected into `BIND_EXPR_VARS' in
! declaration order through their `TREE_CHAIN' field.  Any runtime
! initialization is moved out of `DECL_INITIAL' and into a statement in
! the controlled block.  When gimplifying from C or C++, this
! initialization replaces the `DECL_STMT'.  These variables will never
! require cleanups.  The scope of these variables is just the body
  
   Variable-length arrays (VLAs) complicate this process, as their size
  often refers to variables initialized earlier in the block and their
  initialization involves an explicit stack allocation.  To handle this,
  we add an indirection and replace them with a pointer to stack space
! allocated by means of `alloca'.  In most cases, we also arrange for
! this space to be reclaimed when the enclosing `BIND_EXPR' is exited,
! the exception to this being when there is an explicit call to `alloca'
! in the source code, in which case the stack is left depressed on exit
! of the `BIND_EXPR'.
  
!  A C++ program will usually contain more `BIND_EXPR's than there are
  syntactic blocks in the source code, since several C++ constructs have
  implicit scopes associated with them.  On the other hand, although the
  C++ front end uses pseudo-scopes to handle cleanups for objects with
  destructors, these don't translate into the GIMPLE form; multiple
! declarations at the same level use the same `BIND_EXPR'.
  
  
  File: gccint.info,  Node: Statement Sequences,  Next: Empty Statements,  Prev: Blocks,  Up: Statements
--- 9294,9325 ----
  -------------
  
  Block scopes and the variables they declare in GENERIC are expressed
! using the 'BIND_EXPR' code, which in previous versions of GCC was
  primarily used for the C statement-expression extension.
  
!  Variables in a block are collected into 'BIND_EXPR_VARS' in declaration
! order through their 'TREE_CHAIN' field.  Any runtime initialization is
! moved out of 'DECL_INITIAL' and into a statement in the controlled
! block.  When gimplifying from C or C++, this initialization replaces the
! 'DECL_STMT'.  These variables will never require cleanups.  The scope of
! these variables is just the body
  
   Variable-length arrays (VLAs) complicate this process, as their size
  often refers to variables initialized earlier in the block and their
  initialization involves an explicit stack allocation.  To handle this,
  we add an indirection and replace them with a pointer to stack space
! allocated by means of 'alloca'.  In most cases, we also arrange for this
! space to be reclaimed when the enclosing 'BIND_EXPR' is exited, the
! exception to this being when there is an explicit call to 'alloca' in
! the source code, in which case the stack is left depressed on exit of
! the 'BIND_EXPR'.
  
!  A C++ program will usually contain more 'BIND_EXPR's than there are
  syntactic blocks in the source code, since several C++ constructs have
  implicit scopes associated with them.  On the other hand, although the
  C++ front end uses pseudo-scopes to handle cleanups for objects with
  destructors, these don't translate into the GIMPLE form; multiple
! declarations at the same level use the same 'BIND_EXPR'.
  
  
  File: gccint.info,  Node: Statement Sequences,  Next: Empty Statements,  Prev: Blocks,  Up: Statements
*************** File: gccint.info,  Node: Statement Sequ
*** 9489,9496 ****
  --------------------------
  
  Multiple statements at the same nesting level are collected into a
! `STATEMENT_LIST'.  Statement lists are modified and traversed using the
! interface in `tree-iterator.h'.
  
  
  File: gccint.info,  Node: Empty Statements,  Next: Jumps,  Prev: Statement Sequences,  Up: Statements
--- 9328,9335 ----
  --------------------------
  
  Multiple statements at the same nesting level are collected into a
! 'STATEMENT_LIST'.  Statement lists are modified and traversed using the
! interface in 'tree-iterator.h'.
  
  
  File: gccint.info,  Node: Empty Statements,  Next: Jumps,  Prev: Statement Sequences,  Up: Statements
*************** File: gccint.info,  Node: Empty Statemen
*** 9498,9511 ****
  10.7.4 Empty Statements
  -----------------------
  
! Whenever possible, statements with no effect are discarded.  But if
! they are nested within another construct which cannot be discarded for
! some reason, they are instead replaced with an empty statement,
! generated by `build_empty_stmt'.  Initially, all empty statements were
! shared, after the pattern of the Java front end, but this caused a lot
! of trouble in practice.
  
!  An empty statement is represented as `(void)0'.
  
  
  File: gccint.info,  Node: Jumps,  Next: Cleanups,  Prev: Empty Statements,  Up: Statements
--- 9337,9350 ----
  10.7.4 Empty Statements
  -----------------------
  
! Whenever possible, statements with no effect are discarded.  But if they
! are nested within another construct which cannot be discarded for some
! reason, they are instead replaced with an empty statement, generated by
! 'build_empty_stmt'.  Initially, all empty statements were shared, after
! the pattern of the Java front end, but this caused a lot of trouble in
! practice.
  
!  An empty statement is represented as '(void)0'.
  
  
  File: gccint.info,  Node: Jumps,  Next: Cleanups,  Prev: Empty Statements,  Up: Statements
*************** File: gccint.info,  Node: Jumps,  Next:
*** 9513,9529 ****
  10.7.5 Jumps
  ------------
  
! Other jumps are expressed by either `GOTO_EXPR' or `RETURN_EXPR'.
  
!  The operand of a `GOTO_EXPR' must be either a label or a variable
  containing the address to jump to.
  
!  The operand of a `RETURN_EXPR' is either `NULL_TREE', `RESULT_DECL',
! or a `MODIFY_EXPR' which sets the return value.  It would be nice to
! move the `MODIFY_EXPR' into a separate statement, but the special
! return semantics in `expand_return' make that difficult.  It may still
! happen in the future, perhaps by moving most of that logic into
! `expand_assignment'.
  
  
  File: gccint.info,  Node: Cleanups,  Next: OpenMP,  Prev: Jumps,  Up: Statements
--- 9352,9368 ----
  10.7.5 Jumps
  ------------
  
! Other jumps are expressed by either 'GOTO_EXPR' or 'RETURN_EXPR'.
  
!  The operand of a 'GOTO_EXPR' must be either a label or a variable
  containing the address to jump to.
  
!  The operand of a 'RETURN_EXPR' is either 'NULL_TREE', 'RESULT_DECL', or
! a 'MODIFY_EXPR' which sets the return value.  It would be nice to move
! the 'MODIFY_EXPR' into a separate statement, but the special return
! semantics in 'expand_return' make that difficult.  It may still happen
! in the future, perhaps by moving most of that logic into
! 'expand_assignment'.
  
  
  File: gccint.info,  Node: Cleanups,  Next: OpenMP,  Prev: Jumps,  Up: Statements
*************** File: gccint.info,  Node: Cleanups,  Nex
*** 9532,9538 ****
  ---------------
  
  Destructors for local C++ objects and similar dynamic cleanups are
! represented in GIMPLE by a `TRY_FINALLY_EXPR'.  `TRY_FINALLY_EXPR' has
  two operands, both of which are a sequence of statements to execute.
  The first sequence is executed.  When it completes the second sequence
  is executed.
--- 9371,9377 ----
  ---------------
  
  Destructors for local C++ objects and similar dynamic cleanups are
! represented in GIMPLE by a 'TRY_FINALLY_EXPR'.  'TRY_FINALLY_EXPR' has
  two operands, both of which are a sequence of statements to execute.
  The first sequence is executed.  When it completes the second sequence
  is executed.
*************** is executed.
*** 9541,9572 ****
  
    1. Execute the last statement in the sequence and fall off the end.
  
!   2. Execute a goto statement (`GOTO_EXPR') to an ordinary label
!      outside the sequence.
  
!   3. Execute a return statement (`RETURN_EXPR').
  
    4. Throw an exception.  This is currently not explicitly represented
       in GIMPLE.
  
- 
   The second sequence is not executed if the first sequence completes by
! calling `setjmp' or `exit' or any other function that does not return.
! The second sequence is also not executed if the first sequence
! completes via a non-local goto or a computed goto (in general the
! compiler does not know whether such a goto statement exits the first
! sequence or not, so we assume that it doesn't).
  
   After the second sequence is executed, if it completes normally by
  falling off the end, execution continues wherever the first sequence
  would have continued, by falling off the end, or doing a goto, etc.
  
!  `TRY_FINALLY_EXPR' complicates the flow graph, since the cleanup needs
  to appear on every edge out of the controlled block; this reduces the
  freedom to move code across these edges.  Therefore, the EH lowering
  pass which runs before most of the optimization passes eliminates these
  expressions by explicitly adding the cleanup to each edge.  Rethrowing
! the exception is represented using `RESX_EXPR'.
  
  
  File: gccint.info,  Node: OpenMP,  Next: OpenACC,  Prev: Cleanups,  Up: Statements
--- 9380,9410 ----
  
    1. Execute the last statement in the sequence and fall off the end.
  
!   2. Execute a goto statement ('GOTO_EXPR') to an ordinary label outside
!      the sequence.
  
!   3. Execute a return statement ('RETURN_EXPR').
  
    4. Throw an exception.  This is currently not explicitly represented
       in GIMPLE.
  
   The second sequence is not executed if the first sequence completes by
! calling 'setjmp' or 'exit' or any other function that does not return.
! The second sequence is also not executed if the first sequence completes
! via a non-local goto or a computed goto (in general the compiler does
! not know whether such a goto statement exits the first sequence or not,
! so we assume that it doesn't).
  
   After the second sequence is executed, if it completes normally by
  falling off the end, execution continues wherever the first sequence
  would have continued, by falling off the end, or doing a goto, etc.
  
!  'TRY_FINALLY_EXPR' complicates the flow graph, since the cleanup needs
  to appear on every edge out of the controlled block; this reduces the
  freedom to move code across these edges.  Therefore, the EH lowering
  pass which runs before most of the optimization passes eliminates these
  expressions by explicitly adding the cleanup to each edge.  Rethrowing
! the exception is represented using 'RESX_EXPR'.
  
  
  File: gccint.info,  Node: OpenMP,  Next: OpenACC,  Prev: Cleanups,  Up: Statements
*************** File: gccint.info,  Node: OpenMP,  Next:
*** 9574,9695 ****
  10.7.7 OpenMP
  -------------
  
! All the statements starting with `OMP_' represent directives and
! clauses used by the OpenMP API `http://www.openmp.org/'.
  
! `OMP_PARALLEL'
!      Represents `#pragma omp parallel [clause1 ... clauseN]'. It has
       four operands:
  
!      Operand `OMP_PARALLEL_BODY' is valid while in GENERIC and High
       GIMPLE forms.  It contains the body of code to be executed by all
!      the threads.  During GIMPLE lowering, this operand becomes `NULL'
!      and the body is emitted linearly after `OMP_PARALLEL'.
  
!      Operand `OMP_PARALLEL_CLAUSES' is the list of clauses associated
       with the directive.
  
!      Operand `OMP_PARALLEL_FN' is created by `pass_lower_omp', it
!      contains the `FUNCTION_DECL' for the function that will contain
!      the body of the parallel region.
  
!      Operand `OMP_PARALLEL_DATA_ARG' is also created by
!      `pass_lower_omp'. If there are shared variables to be communicated
!      to the children threads, this operand will contain the `VAR_DECL'
       that contains all the shared values and variables.
  
! `OMP_FOR'
!      Represents `#pragma omp for [clause1 ... clauseN]'.  It has six
       operands:
  
!      Operand `OMP_FOR_BODY' contains the loop body.
  
!      Operand `OMP_FOR_CLAUSES' is the list of clauses associated with
       the directive.
  
!      Operand `OMP_FOR_INIT' is the loop initialization code of the form
!      `VAR = N1'.
  
!      Operand `OMP_FOR_COND' is the loop conditional expression of the
!      form `VAR {<,>,<=,>=} N2'.
  
!      Operand `OMP_FOR_INCR' is the loop index increment of the form
!      `VAR {+=,-=} INCR'.
  
!      Operand `OMP_FOR_PRE_BODY' contains side-effect code from operands
!      `OMP_FOR_INIT', `OMP_FOR_COND' and `OMP_FOR_INC'.  These
!      side-effects are part of the `OMP_FOR' block but must be evaluated
       before the start of loop body.
  
!      The loop index variable `VAR' must be a signed integer variable,
!      which is implicitly private to each thread.  Bounds `N1' and `N2'
!      and the increment expression `INCR' are required to be loop
       invariant integer expressions that are evaluated without any
!      synchronization. The evaluation order, frequency of evaluation and
       side-effects are unspecified by the standard.
  
! `OMP_SECTIONS'
!      Represents `#pragma omp sections [clause1 ... clauseN]'.
  
!      Operand `OMP_SECTIONS_BODY' contains the sections body, which in
!      turn contains a set of `OMP_SECTION' nodes for each of the
!      concurrent sections delimited by `#pragma omp section'.
  
!      Operand `OMP_SECTIONS_CLAUSES' is the list of clauses associated
       with the directive.
  
! `OMP_SECTION'
!      Section delimiter for `OMP_SECTIONS'.
  
! `OMP_SINGLE'
!      Represents `#pragma omp single'.
  
!      Operand `OMP_SINGLE_BODY' contains the body of code to be executed
       by a single thread.
  
!      Operand `OMP_SINGLE_CLAUSES' is the list of clauses associated
!      with the directive.
  
! `OMP_MASTER'
!      Represents `#pragma omp master'.
  
!      Operand `OMP_MASTER_BODY' contains the body of code to be executed
       by the master thread.
  
! `OMP_ORDERED'
!      Represents `#pragma omp ordered'.
  
!      Operand `OMP_ORDERED_BODY' contains the body of code to be
!      executed in the sequential order dictated by the loop index
!      variable.
  
! `OMP_CRITICAL'
!      Represents `#pragma omp critical [name]'.
  
!      Operand `OMP_CRITICAL_BODY' is the critical section.
  
!      Operand `OMP_CRITICAL_NAME' is an optional identifier to label the
       critical section.
  
! `OMP_RETURN'
       This does not represent any OpenMP directive, it is an artificial
!      marker to indicate the end of the body of an OpenMP. It is used by
!      the flow graph (`tree-cfg.c') and OpenMP region building code
!      (`omp-low.c').
  
! `OMP_CONTINUE'
!      Similarly, this instruction does not represent an OpenMP
!      directive, it is used by `OMP_FOR' (and similar codes) as well as
!      `OMP_SECTIONS' to mark the place where the code needs to loop to
       the next iteration, or the next section, respectively.
  
!      In some cases, `OMP_CONTINUE' is placed right before `OMP_RETURN'.
       But if there are cleanups that need to occur right after the
!      looping body, it will be emitted between `OMP_CONTINUE' and
!      `OMP_RETURN'.
  
! `OMP_ATOMIC'
!      Represents `#pragma omp atomic'.
  
       Operand 0 is the address at which the atomic operation is to be
       performed.
--- 9412,9543 ----
  10.7.7 OpenMP
  -------------
  
! All the statements starting with 'OMP_' represent directives and clauses
! used by the OpenMP API <http://www.openmp.org/>.
  
! 'OMP_PARALLEL'
! 
!      Represents '#pragma omp parallel [clause1 ... clauseN]'.  It has
       four operands:
  
!      Operand 'OMP_PARALLEL_BODY' is valid while in GENERIC and High
       GIMPLE forms.  It contains the body of code to be executed by all
!      the threads.  During GIMPLE lowering, this operand becomes 'NULL'
!      and the body is emitted linearly after 'OMP_PARALLEL'.
  
!      Operand 'OMP_PARALLEL_CLAUSES' is the list of clauses associated
       with the directive.
  
!      Operand 'OMP_PARALLEL_FN' is created by 'pass_lower_omp', it
!      contains the 'FUNCTION_DECL' for the function that will contain the
!      body of the parallel region.
  
!      Operand 'OMP_PARALLEL_DATA_ARG' is also created by
!      'pass_lower_omp'.  If there are shared variables to be communicated
!      to the children threads, this operand will contain the 'VAR_DECL'
       that contains all the shared values and variables.
  
! 'OMP_FOR'
! 
!      Represents '#pragma omp for [clause1 ... clauseN]'.  It has six
       operands:
  
!      Operand 'OMP_FOR_BODY' contains the loop body.
  
!      Operand 'OMP_FOR_CLAUSES' is the list of clauses associated with
       the directive.
  
!      Operand 'OMP_FOR_INIT' is the loop initialization code of the form
!      'VAR = N1'.
  
!      Operand 'OMP_FOR_COND' is the loop conditional expression of the
!      form 'VAR {<,>,<=,>=} N2'.
  
!      Operand 'OMP_FOR_INCR' is the loop index increment of the form 'VAR
!      {+=,-=} INCR'.
  
!      Operand 'OMP_FOR_PRE_BODY' contains side-effect code from operands
!      'OMP_FOR_INIT', 'OMP_FOR_COND' and 'OMP_FOR_INC'.  These
!      side-effects are part of the 'OMP_FOR' block but must be evaluated
       before the start of loop body.
  
!      The loop index variable 'VAR' must be a signed integer variable,
!      which is implicitly private to each thread.  Bounds 'N1' and 'N2'
!      and the increment expression 'INCR' are required to be loop
       invariant integer expressions that are evaluated without any
!      synchronization.  The evaluation order, frequency of evaluation and
       side-effects are unspecified by the standard.
  
! 'OMP_SECTIONS'
  
!      Represents '#pragma omp sections [clause1 ... clauseN]'.
  
!      Operand 'OMP_SECTIONS_BODY' contains the sections body, which in
!      turn contains a set of 'OMP_SECTION' nodes for each of the
!      concurrent sections delimited by '#pragma omp section'.
! 
!      Operand 'OMP_SECTIONS_CLAUSES' is the list of clauses associated
       with the directive.
  
! 'OMP_SECTION'
  
!      Section delimiter for 'OMP_SECTIONS'.
  
! 'OMP_SINGLE'
! 
!      Represents '#pragma omp single'.
! 
!      Operand 'OMP_SINGLE_BODY' contains the body of code to be executed
       by a single thread.
  
!      Operand 'OMP_SINGLE_CLAUSES' is the list of clauses associated with
!      the directive.
  
! 'OMP_MASTER'
  
!      Represents '#pragma omp master'.
! 
!      Operand 'OMP_MASTER_BODY' contains the body of code to be executed
       by the master thread.
  
! 'OMP_ORDERED'
  
!      Represents '#pragma omp ordered'.
  
!      Operand 'OMP_ORDERED_BODY' contains the body of code to be executed
!      in the sequential order dictated by the loop index variable.
  
! 'OMP_CRITICAL'
  
!      Represents '#pragma omp critical [name]'.
! 
!      Operand 'OMP_CRITICAL_BODY' is the critical section.
! 
!      Operand 'OMP_CRITICAL_NAME' is an optional identifier to label the
       critical section.
  
! 'OMP_RETURN'
! 
       This does not represent any OpenMP directive, it is an artificial
!      marker to indicate the end of the body of an OpenMP.  It is used by
!      the flow graph ('tree-cfg.c') and OpenMP region building code
!      ('omp-low.c').
  
! 'OMP_CONTINUE'
! 
!      Similarly, this instruction does not represent an OpenMP directive,
!      it is used by 'OMP_FOR' (and similar codes) as well as
!      'OMP_SECTIONS' to mark the place where the code needs to loop to
       the next iteration, or the next section, respectively.
  
!      In some cases, 'OMP_CONTINUE' is placed right before 'OMP_RETURN'.
       But if there are cleanups that need to occur right after the
!      looping body, it will be emitted between 'OMP_CONTINUE' and
!      'OMP_RETURN'.
  
! 'OMP_ATOMIC'
! 
!      Represents '#pragma omp atomic'.
  
       Operand 0 is the address at which the atomic operation is to be
       performed.
*************** clauses used by the OpenMP API `http://w
*** 9700,9725 ****
       compare-and-swap loop is attempted.  If that also fails, a regular
       critical section around the expression is used.
  
! `OMP_CLAUSE'
!      Represents clauses associated with one of the `OMP_' directives.
!      Clauses are represented by separate subcodes defined in `tree.h'.
!      Clauses codes can be one of: `OMP_CLAUSE_PRIVATE',
!      `OMP_CLAUSE_SHARED', `OMP_CLAUSE_FIRSTPRIVATE',
!      `OMP_CLAUSE_LASTPRIVATE', `OMP_CLAUSE_COPYIN',
!      `OMP_CLAUSE_COPYPRIVATE', `OMP_CLAUSE_IF',
!      `OMP_CLAUSE_NUM_THREADS', `OMP_CLAUSE_SCHEDULE',
!      `OMP_CLAUSE_NOWAIT', `OMP_CLAUSE_ORDERED', `OMP_CLAUSE_DEFAULT',
!      `OMP_CLAUSE_REDUCTION', `OMP_CLAUSE_COLLAPSE', `OMP_CLAUSE_UNTIED',
!      `OMP_CLAUSE_FINAL', and `OMP_CLAUSE_MERGEABLE'.  Each code
!      represents the corresponding OpenMP clause.
  
!      Clauses associated with the same directive are chained together
!      via `OMP_CLAUSE_CHAIN'. Those clauses that accept a list of
!      variables are restricted to exactly one, accessed with
!      `OMP_CLAUSE_VAR'.  Therefore, multiple variables under the same
!      clause `C' need to be represented as multiple `C' clauses chained
!      together.  This facilitates adding new clauses during compilation.
  
  
  
  File: gccint.info,  Node: OpenACC,  Prev: OpenMP,  Up: Statements
--- 9548,9573 ----
       compare-and-swap loop is attempted.  If that also fails, a regular
       critical section around the expression is used.
  
! 'OMP_CLAUSE'
  
!      Represents clauses associated with one of the 'OMP_' directives.
!      Clauses are represented by separate subcodes defined in 'tree.h'.
!      Clauses codes can be one of: 'OMP_CLAUSE_PRIVATE',
!      'OMP_CLAUSE_SHARED', 'OMP_CLAUSE_FIRSTPRIVATE',
!      'OMP_CLAUSE_LASTPRIVATE', 'OMP_CLAUSE_COPYIN',
!      'OMP_CLAUSE_COPYPRIVATE', 'OMP_CLAUSE_IF',
!      'OMP_CLAUSE_NUM_THREADS', 'OMP_CLAUSE_SCHEDULE',
!      'OMP_CLAUSE_NOWAIT', 'OMP_CLAUSE_ORDERED', 'OMP_CLAUSE_DEFAULT',
!      'OMP_CLAUSE_REDUCTION', 'OMP_CLAUSE_COLLAPSE', 'OMP_CLAUSE_UNTIED',
!      'OMP_CLAUSE_FINAL', and 'OMP_CLAUSE_MERGEABLE'.  Each code
!      represents the corresponding OpenMP clause.
  
+      Clauses associated with the same directive are chained together via
+      'OMP_CLAUSE_CHAIN'.  Those clauses that accept a list of variables
+      are restricted to exactly one, accessed with 'OMP_CLAUSE_VAR'.
+      Therefore, multiple variables under the same clause 'C' need to be
+      represented as multiple 'C' clauses chained together.  This
+      facilitates adding new clauses during compilation.
  
  
  File: gccint.info,  Node: OpenACC,  Prev: OpenMP,  Up: Statements
*************** File: gccint.info,  Node: OpenACC,  Prev
*** 9727,9767 ****
  10.7.8 OpenACC
  --------------
  
! All the statements starting with `OACC_' represent directives and
! clauses used by the OpenACC API `http://www.openacc.org/'.
  
! `OACC_CACHE'
!      Represents `#pragma acc cache (var ...)'.
  
! `OACC_DATA'
!      Represents `#pragma acc data [clause1 ... clauseN]'.
  
! `OACC_DECLARE'
!      Represents `#pragma acc declare [clause1 ... clauseN]'.
  
! `OACC_ENTER_DATA'
!      Represents `#pragma acc enter data [clause1 ... clauseN]'.
  
! `OACC_EXIT_DATA'
!      Represents `#pragma acc exit data [clause1 ... clauseN]'.
  
! `OACC_HOST_DATA'
!      Represents `#pragma acc host_data [clause1 ... clauseN]'.
  
! `OACC_KERNELS'
!      Represents `#pragma acc kernels [clause1 ... clauseN]'.
  
! `OACC_LOOP'
!      Represents `#pragma acc loop [clause1 ... clauseN]'.
  
!      See the description of the `OMP_FOR' code.
  
! `OACC_PARALLEL'
!      Represents `#pragma acc parallel [clause1 ... clauseN]'.
  
! `OACC_UPDATE'
!      Represents `#pragma acc update [clause1 ... clauseN]'.
  
  
  
  File: gccint.info,  Node: Functions,  Next: Language-dependent trees,  Prev: Statements,  Up: GENERIC
--- 9575,9624 ----
  10.7.8 OpenACC
  --------------
  
! All the statements starting with 'OACC_' represent directives and
! clauses used by the OpenACC API <http://www.openacc.org/>.
  
! 'OACC_CACHE'
  
!      Represents '#pragma acc cache (var ...)'.
  
! 'OACC_DATA'
  
!      Represents '#pragma acc data [clause1 ... clauseN]'.
  
! 'OACC_DECLARE'
  
!      Represents '#pragma acc declare [clause1 ... clauseN]'.
  
! 'OACC_ENTER_DATA'
  
!      Represents '#pragma acc enter data [clause1 ... clauseN]'.
  
! 'OACC_EXIT_DATA'
  
!      Represents '#pragma acc exit data [clause1 ... clauseN]'.
  
! 'OACC_HOST_DATA'
! 
!      Represents '#pragma acc host_data [clause1 ... clauseN]'.
  
+ 'OACC_KERNELS'
+ 
+      Represents '#pragma acc kernels [clause1 ... clauseN]'.
+ 
+ 'OACC_LOOP'
+ 
+      Represents '#pragma acc loop [clause1 ... clauseN]'.
+ 
+      See the description of the 'OMP_FOR' code.
+ 
+ 'OACC_PARALLEL'
+ 
+      Represents '#pragma acc parallel [clause1 ... clauseN]'.
+ 
+ 'OACC_UPDATE'
+ 
+      Represents '#pragma acc update [clause1 ... clauseN]'.
  
  
  File: gccint.info,  Node: Functions,  Next: Language-dependent trees,  Prev: Statements,  Up: GENERIC
*************** File: gccint.info,  Node: Functions,  Ne
*** 9769,9775 ****
  10.8 Functions
  ==============
  
! A function is represented by a `FUNCTION_DECL' node.  It stores the
  basic pieces of the function such as body, parameters, and return type
  as well as information on the surrounding context, visibility, and
  linkage.
--- 9626,9632 ----
  10.8 Functions
  ==============
  
! A function is represented by a 'FUNCTION_DECL' node.  It stores the
  basic pieces of the function such as body, parameters, and return type
  as well as information on the surrounding context, visibility, and
  linkage.
*************** File: gccint.info,  Node: Function Basic
*** 9787,9846 ****
  
  A function has four core parts: the name, the parameters, the result,
  and the body.  The following macros and functions access these parts of
! a `FUNCTION_DECL' as well as other basic features:
! `DECL_NAME'
       This macro returns the unqualified name of the function, as an
!      `IDENTIFIER_NODE'.  For an instantiation of a function template,
!      the `DECL_NAME' is the unqualified name of the template, not
!      something like `f<int>'.  The value of `DECL_NAME' is undefined
       when used on a constructor, destructor, overloaded operator, or
       type-conversion operator, or any function that is implicitly
       generated by the compiler.  See below for macros that can be used
       to distinguish these cases.
  
! `DECL_ASSEMBLER_NAME'
       This macro returns the mangled name of the function, also an
!      `IDENTIFIER_NODE'.  This name does not contain leading underscores
       on systems that prefix all identifiers with underscores.  The
       mangled name is computed in the same way on all platforms; if
       special processing is required to deal with the object file format
!      used on a particular platform, it is the responsibility of the
!      back end to perform those modifications.  (Of course, the back end
!      should not modify `DECL_ASSEMBLER_NAME' itself.)
  
!      Using `DECL_ASSEMBLER_NAME' will cause additional memory to be
       allocated (for the mangled name of the entity) so it should be used
       only when emitting assembly code.  It should not be used within the
       optimizers to determine whether or not two declarations are the
!      same, even though some of the existing optimizers do use it in
!      that way.  These uses will be removed over time.
  
! `DECL_ARGUMENTS'
!      This macro returns the `PARM_DECL' for the first argument to the
!      function.  Subsequent `PARM_DECL' nodes can be obtained by
!      following the `TREE_CHAIN' links.
  
! `DECL_RESULT'
!      This macro returns the `RESULT_DECL' for the function.
  
! `DECL_SAVED_TREE'
       This macro returns the complete body of the function.
  
! `TREE_TYPE'
!      This macro returns the `FUNCTION_TYPE' or `METHOD_TYPE' for the
       function.
  
! `DECL_INITIAL'
       A function that has a definition in the current translation unit
!      will have a non-`NULL' `DECL_INITIAL'.  However, back ends should
!      not make use of the particular value given by `DECL_INITIAL'.
  
!      It should contain a tree of `BLOCK' nodes that mirrors the scopes
       that variables are bound in the function.  Each block contains a
       list of decls declared in a basic block, a pointer to a chain of
       blocks at the next lower scope level, then a pointer to the next
!      block at the same level and a backpointer to the parent `BLOCK' or
!      `FUNCTION_DECL'.  So given a function as follows:
  
            void foo()
            {
--- 9644,9703 ----
  
  A function has four core parts: the name, the parameters, the result,
  and the body.  The following macros and functions access these parts of
! a 'FUNCTION_DECL' as well as other basic features:
! 'DECL_NAME'
       This macro returns the unqualified name of the function, as an
!      'IDENTIFIER_NODE'.  For an instantiation of a function template,
!      the 'DECL_NAME' is the unqualified name of the template, not
!      something like 'f<int>'.  The value of 'DECL_NAME' is undefined
       when used on a constructor, destructor, overloaded operator, or
       type-conversion operator, or any function that is implicitly
       generated by the compiler.  See below for macros that can be used
       to distinguish these cases.
  
! 'DECL_ASSEMBLER_NAME'
       This macro returns the mangled name of the function, also an
!      'IDENTIFIER_NODE'.  This name does not contain leading underscores
       on systems that prefix all identifiers with underscores.  The
       mangled name is computed in the same way on all platforms; if
       special processing is required to deal with the object file format
!      used on a particular platform, it is the responsibility of the back
!      end to perform those modifications.  (Of course, the back end
!      should not modify 'DECL_ASSEMBLER_NAME' itself.)
  
!      Using 'DECL_ASSEMBLER_NAME' will cause additional memory to be
       allocated (for the mangled name of the entity) so it should be used
       only when emitting assembly code.  It should not be used within the
       optimizers to determine whether or not two declarations are the
!      same, even though some of the existing optimizers do use it in that
!      way.  These uses will be removed over time.
  
! 'DECL_ARGUMENTS'
!      This macro returns the 'PARM_DECL' for the first argument to the
!      function.  Subsequent 'PARM_DECL' nodes can be obtained by
!      following the 'TREE_CHAIN' links.
  
! 'DECL_RESULT'
!      This macro returns the 'RESULT_DECL' for the function.
  
! 'DECL_SAVED_TREE'
       This macro returns the complete body of the function.
  
! 'TREE_TYPE'
!      This macro returns the 'FUNCTION_TYPE' or 'METHOD_TYPE' for the
       function.
  
! 'DECL_INITIAL'
       A function that has a definition in the current translation unit
!      will have a non-'NULL' 'DECL_INITIAL'.  However, back ends should
!      not make use of the particular value given by 'DECL_INITIAL'.
  
!      It should contain a tree of 'BLOCK' nodes that mirrors the scopes
       that variables are bound in the function.  Each block contains a
       list of decls declared in a basic block, a pointer to a chain of
       blocks at the next lower scope level, then a pointer to the next
!      block at the same level and a backpointer to the parent 'BLOCK' or
!      'FUNCTION_DECL'.  So given a function as follows:
  
            void foo()
            {
*************** a `FUNCTION_DECL' as well as other basic
*** 9870,9924 ****
            BLOCK_SUPERCONTEXT(block_c) = foo;
            DECL_INITIAL(foo) = block_a;
  
- 
  
  File: gccint.info,  Node: Function Properties,  Prev: Function Basics,  Up: Functions
  
  10.8.2 Function Properties
  --------------------------
  
! To determine the scope of a function, you can use the `DECL_CONTEXT'
! macro.  This macro will return the class (either a `RECORD_TYPE' or a
! `UNION_TYPE') or namespace (a `NAMESPACE_DECL') of which the function
! is a member.  For a virtual function, this macro returns the class in
! which the function was actually defined, not the base class in which
! the virtual declaration occurred.
  
!  In C, the `DECL_CONTEXT' for a function maybe another function.  This
  representation indicates that the GNU nested function extension is in
  use.  For details on the semantics of nested functions, see the GCC
  Manual.  The nested function can refer to local variables in its
  containing function.  Such references are not explicitly marked in the
! tree structure; back ends must look at the `DECL_CONTEXT' for the
! referenced `VAR_DECL'.  If the `DECL_CONTEXT' for the referenced
! `VAR_DECL' is not the same as the function currently being processed,
! and neither `DECL_EXTERNAL' nor `TREE_STATIC' hold, then the reference
  is to a local variable in a containing function, and the back end must
  take appropriate action.
  
! `DECL_EXTERNAL'
       This predicate holds if the function is undefined.
  
! `TREE_PUBLIC'
       This predicate holds if the function has external linkage.
  
! `TREE_STATIC'
       This predicate holds if the function has been defined.
  
! `TREE_THIS_VOLATILE'
       This predicate holds if the function does not return normally.
  
! `TREE_READONLY'
       This predicate holds if the function can only read its arguments.
  
! `DECL_PURE_P'
       This predicate holds if the function can only read its arguments,
       but may also read global memory.
  
! `DECL_VIRTUAL_P'
       This predicate holds if the function is virtual.
  
! `DECL_ARTIFICIAL'
       This macro holds if the function was implicitly generated by the
       compiler, rather than explicitly declared.  In addition to
       implicitly generated class member functions, this macro holds for
--- 9727,9780 ----
            BLOCK_SUPERCONTEXT(block_c) = foo;
            DECL_INITIAL(foo) = block_a;
  
  
  File: gccint.info,  Node: Function Properties,  Prev: Function Basics,  Up: Functions
  
  10.8.2 Function Properties
  --------------------------
  
! To determine the scope of a function, you can use the 'DECL_CONTEXT'
! macro.  This macro will return the class (either a 'RECORD_TYPE' or a
! 'UNION_TYPE') or namespace (a 'NAMESPACE_DECL') of which the function is
! a member.  For a virtual function, this macro returns the class in which
! the function was actually defined, not the base class in which the
! virtual declaration occurred.
  
!  In C, the 'DECL_CONTEXT' for a function maybe another function.  This
  representation indicates that the GNU nested function extension is in
  use.  For details on the semantics of nested functions, see the GCC
  Manual.  The nested function can refer to local variables in its
  containing function.  Such references are not explicitly marked in the
! tree structure; back ends must look at the 'DECL_CONTEXT' for the
! referenced 'VAR_DECL'.  If the 'DECL_CONTEXT' for the referenced
! 'VAR_DECL' is not the same as the function currently being processed,
! and neither 'DECL_EXTERNAL' nor 'TREE_STATIC' hold, then the reference
  is to a local variable in a containing function, and the back end must
  take appropriate action.
  
! 'DECL_EXTERNAL'
       This predicate holds if the function is undefined.
  
! 'TREE_PUBLIC'
       This predicate holds if the function has external linkage.
  
! 'TREE_STATIC'
       This predicate holds if the function has been defined.
  
! 'TREE_THIS_VOLATILE'
       This predicate holds if the function does not return normally.
  
! 'TREE_READONLY'
       This predicate holds if the function can only read its arguments.
  
! 'DECL_PURE_P'
       This predicate holds if the function can only read its arguments,
       but may also read global memory.
  
! 'DECL_VIRTUAL_P'
       This predicate holds if the function is virtual.
  
! 'DECL_ARTIFICIAL'
       This macro holds if the function was implicitly generated by the
       compiler, rather than explicitly declared.  In addition to
       implicitly generated class member functions, this macro holds for
*************** take appropriate action.
*** 9926,9943 ****
       and destruction, to compute run-time type information, and so
       forth.
  
! `DECL_FUNCTION_SPECIFIC_TARGET'
       This macro returns a tree node that holds the target options that
!      are to be used to compile this particular function or `NULL_TREE'
!      if the function is to be compiled with the target options
!      specified on the command line.
  
! `DECL_FUNCTION_SPECIFIC_OPTIMIZATION'
       This macro returns a tree node that holds the optimization options
       that are to be used to compile this particular function or
!      `NULL_TREE' if the function is to be compiled with the
!      optimization options specified on the command line.
! 
  
  
  File: gccint.info,  Node: Language-dependent trees,  Next: C and C++ Trees,  Prev: Functions,  Up: GENERIC
--- 9782,9798 ----
       and destruction, to compute run-time type information, and so
       forth.
  
! 'DECL_FUNCTION_SPECIFIC_TARGET'
       This macro returns a tree node that holds the target options that
!      are to be used to compile this particular function or 'NULL_TREE'
!      if the function is to be compiled with the target options specified
!      on the command line.
  
! 'DECL_FUNCTION_SPECIFIC_OPTIMIZATION'
       This macro returns a tree node that holds the optimization options
       that are to be used to compile this particular function or
!      'NULL_TREE' if the function is to be compiled with the optimization
!      options specified on the command line.
  
  
  File: gccint.info,  Node: Language-dependent trees,  Next: C and C++ Trees,  Prev: Functions,  Up: GENERIC
*************** File: gccint.info,  Node: Language-depen
*** 9946,9962 ****
  =============================
  
  Front ends may wish to keep some state associated with various GENERIC
! trees while parsing.  To support this, trees provide a set of flags
! that may be used by the front end.  They are accessed using
! `TREE_LANG_FLAG_n' where `n' is currently 0 through 6.
  
!  If necessary, a front end can use some language-dependent tree codes
! in its GENERIC representation, so long as it provides a hook for
! converting them to GIMPLE and doesn't expect them to work with any
! (hypothetical) optimizers that run before the conversion to GIMPLE. The
! intermediate representation used while parsing C and C++ looks very
! little like GENERIC, but the C and C++ gimplifier hooks are perfectly
! happy to take it as input and spit out GIMPLE.
  
  
  File: gccint.info,  Node: C and C++ Trees,  Next: Java Trees,  Prev: Language-dependent trees,  Up: GENERIC
--- 9801,9817 ----
  =============================
  
  Front ends may wish to keep some state associated with various GENERIC
! trees while parsing.  To support this, trees provide a set of flags that
! may be used by the front end.  They are accessed using
! 'TREE_LANG_FLAG_n' where 'n' is currently 0 through 6.
  
!  If necessary, a front end can use some language-dependent tree codes in
! its GENERIC representation, so long as it provides a hook for converting
! them to GIMPLE and doesn't expect them to work with any (hypothetical)
! optimizers that run before the conversion to GIMPLE.  The intermediate
! representation used while parsing C and C++ looks very little like
! GENERIC, but the C and C++ gimplifier hooks are perfectly happy to take
! it as input and spit out GIMPLE.
  
  
  File: gccint.info,  Node: C and C++ Trees,  Next: Java Trees,  Prev: Language-dependent trees,  Up: GENERIC
*************** submit your patches for inclusion in GCC
*** 10012,10018 ****
  * Classes::                     Classes.
  * Functions for C++::           Overloading and accessors for C++.
  * Statements for C++::          Statements specific to C and C++.
! * C++ Expressions::    From `typeid' to `throw'.
  
  
  File: gccint.info,  Node: Types for C++,  Next: Namespaces,  Up: C and C++ Trees
--- 9867,9873 ----
  * Classes::                     Classes.
  * Functions for C++::           Overloading and accessors for C++.
  * Statements for C++::          Statements specific to C and C++.
! * C++ Expressions::    From 'typeid' to 'throw'.
  
  
  File: gccint.info,  Node: Types for C++,  Next: Namespaces,  Up: C and C++ Trees
*************** representation.  The macros described he
*** 10026,10143 ****
  qualification of the underlying element type when applied to an array
  type.  (If the element type is itself an array, then the recursion
  continues until a non-array type is found, and the qualification of this
! type is examined.)  So, for example, `CP_TYPE_CONST_P' will hold of the
! type `const int ()[7]', denoting an array of seven `int's.
  
   The following functions and macros deal with cv-qualification of types:
! `cp_type_quals'
       This function returns the set of type qualifiers applied to this
!      type.  This value is `TYPE_UNQUALIFIED' if no qualifiers have been
!      applied.  The `TYPE_QUAL_CONST' bit is set if the type is
!      `const'-qualified.  The `TYPE_QUAL_VOLATILE' bit is set if the
!      type is `volatile'-qualified.  The `TYPE_QUAL_RESTRICT' bit is set
!      if the type is `restrict'-qualified.
! 
! `CP_TYPE_CONST_P'
!      This macro holds if the type is `const'-qualified.
  
! `CP_TYPE_VOLATILE_P'
!      This macro holds if the type is `volatile'-qualified.
  
! `CP_TYPE_RESTRICT_P'
!      This macro holds if the type is `restrict'-qualified.
  
! `CP_TYPE_CONST_NON_VOLATILE_P'
!      This predicate holds for a type that is `const'-qualified, but
!      _not_ `volatile'-qualified; other cv-qualifiers are ignored as
!      well: only the `const'-ness is tested.
  
  
   A few other macros and functions are usable with all types:
! `TYPE_SIZE'
       The number of bits required to represent the type, represented as
!      an `INTEGER_CST'.  For an incomplete type, `TYPE_SIZE' will be
!      `NULL_TREE'.
  
! `TYPE_ALIGN'
!      The alignment of the type, in bits, represented as an `int'.
  
! `TYPE_NAME'
!      This macro returns a declaration (in the form of a `TYPE_DECL') for
!      the type.  (Note this macro does _not_ return an
!      `IDENTIFIER_NODE', as you might expect, given its name!)  You can
!      look at the `DECL_NAME' of the `TYPE_DECL' to obtain the actual
!      name of the type.  The `TYPE_NAME' will be `NULL_TREE' for a type
!      that is not a built-in type, the result of a typedef, or a named
!      class type.
  
! `CP_INTEGRAL_TYPE'
       This predicate holds if the type is an integral type.  Notice that
       in C++, enumerations are _not_ integral types.
  
! `ARITHMETIC_TYPE_P'
       This predicate holds if the type is an integral type (in the C++
       sense) or a floating point type.
  
! `CLASS_TYPE_P'
       This predicate holds for a class-type.
  
! `TYPE_BUILT_IN'
       This predicate holds for a built-in type.
  
! `TYPE_PTRDATAMEM_P'
       This predicate holds if the type is a pointer to data member.
  
! `TYPE_PTR_P'
!      This predicate holds if the type is a pointer type, and the
!      pointee is not a data member.
  
! `TYPE_PTRFN_P'
       This predicate holds for a pointer to function type.
  
! `TYPE_PTROB_P'
       This predicate holds for a pointer to object type.  Note however
!      that it does not hold for the generic pointer to object type `void
!      *'.  You may use `TYPE_PTROBV_P' to test for a pointer to object
!      type as well as `void *'.
! 
  
   The table below describes types specific to C and C++ as well as
  language-dependent info about GENERIC types.
  
! `POINTER_TYPE'
       Used to represent pointer types, and pointer to data member types.
!      If `TREE_TYPE' is a pointer to data member type, then
!      `TYPE_PTRDATAMEM_P' will hold.  For a pointer to data member type
!      of the form `T X::*', `TYPE_PTRMEM_CLASS_TYPE' will be the type
!      `X', while `TYPE_PTRMEM_POINTED_TO_TYPE' will be the type `T'.
  
! `RECORD_TYPE'
!      Used to represent `struct' and `class' types in C and C++.  If
!      `TYPE_PTRMEMFUNC_P' holds, then this type is a pointer-to-member
!      type.  In that case, the `TYPE_PTRMEMFUNC_FN_TYPE' is a
!      `POINTER_TYPE' pointing to a `METHOD_TYPE'.  The `METHOD_TYPE' is
       the type of a function pointed to by the pointer-to-member
!      function.  If `TYPE_PTRMEMFUNC_P' does not hold, this type is a
       class type.  For more information, *note Classes::.
  
! `UNKNOWN_TYPE'
       This node is used to represent a type the knowledge of which is
       insufficient for a sound processing.
  
! `TYPENAME_TYPE'
!      Used to represent a construct of the form `typename T::A'.  The
!      `TYPE_CONTEXT' is `T'; the `TYPE_NAME' is an `IDENTIFIER_NODE' for
!      `A'.  If the type is specified via a template-id, then
!      `TYPENAME_TYPE_FULLNAME' yields a `TEMPLATE_ID_EXPR'.  The
!      `TREE_TYPE' is non-`NULL' if the node is implicitly generated in
       support for the implicit typename extension; in which case the
!      `TREE_TYPE' is a type node for the base-class.
! 
! `TYPEOF_TYPE'
!      Used to represent the `__typeof__' extension.  The `TYPE_FIELDS'
!      is the expression the type of which is being represented.
  
  
  
  File: gccint.info,  Node: Namespaces,  Next: Classes,  Prev: Types for C++,  Up: C and C++ Trees
--- 9881,9994 ----
  qualification of the underlying element type when applied to an array
  type.  (If the element type is itself an array, then the recursion
  continues until a non-array type is found, and the qualification of this
! type is examined.)  So, for example, 'CP_TYPE_CONST_P' will hold of the
! type 'const int ()[7]', denoting an array of seven 'int's.
  
   The following functions and macros deal with cv-qualification of types:
! 'cp_type_quals'
       This function returns the set of type qualifiers applied to this
!      type.  This value is 'TYPE_UNQUALIFIED' if no qualifiers have been
!      applied.  The 'TYPE_QUAL_CONST' bit is set if the type is
!      'const'-qualified.  The 'TYPE_QUAL_VOLATILE' bit is set if the type
!      is 'volatile'-qualified.  The 'TYPE_QUAL_RESTRICT' bit is set if
!      the type is 'restrict'-qualified.
  
! 'CP_TYPE_CONST_P'
!      This macro holds if the type is 'const'-qualified.
  
! 'CP_TYPE_VOLATILE_P'
!      This macro holds if the type is 'volatile'-qualified.
  
! 'CP_TYPE_RESTRICT_P'
!      This macro holds if the type is 'restrict'-qualified.
  
+ 'CP_TYPE_CONST_NON_VOLATILE_P'
+      This predicate holds for a type that is 'const'-qualified, but
+      _not_ 'volatile'-qualified; other cv-qualifiers are ignored as
+      well: only the 'const'-ness is tested.
  
   A few other macros and functions are usable with all types:
! 'TYPE_SIZE'
       The number of bits required to represent the type, represented as
!      an 'INTEGER_CST'.  For an incomplete type, 'TYPE_SIZE' will be
!      'NULL_TREE'.
  
! 'TYPE_ALIGN'
!      The alignment of the type, in bits, represented as an 'int'.
  
! 'TYPE_NAME'
!      This macro returns a declaration (in the form of a 'TYPE_DECL') for
!      the type.  (Note this macro does _not_ return an 'IDENTIFIER_NODE',
!      as you might expect, given its name!)  You can look at the
!      'DECL_NAME' of the 'TYPE_DECL' to obtain the actual name of the
!      type.  The 'TYPE_NAME' will be 'NULL_TREE' for a type that is not a
!      built-in type, the result of a typedef, or a named class type.
  
! 'CP_INTEGRAL_TYPE'
       This predicate holds if the type is an integral type.  Notice that
       in C++, enumerations are _not_ integral types.
  
! 'ARITHMETIC_TYPE_P'
       This predicate holds if the type is an integral type (in the C++
       sense) or a floating point type.
  
! 'CLASS_TYPE_P'
       This predicate holds for a class-type.
  
! 'TYPE_BUILT_IN'
       This predicate holds for a built-in type.
  
! 'TYPE_PTRDATAMEM_P'
       This predicate holds if the type is a pointer to data member.
  
! 'TYPE_PTR_P'
!      This predicate holds if the type is a pointer type, and the pointee
!      is not a data member.
  
! 'TYPE_PTRFN_P'
       This predicate holds for a pointer to function type.
  
! 'TYPE_PTROB_P'
       This predicate holds for a pointer to object type.  Note however
!      that it does not hold for the generic pointer to object type 'void
!      *'.  You may use 'TYPE_PTROBV_P' to test for a pointer to object
!      type as well as 'void *'.
  
   The table below describes types specific to C and C++ as well as
  language-dependent info about GENERIC types.
  
! 'POINTER_TYPE'
       Used to represent pointer types, and pointer to data member types.
!      If 'TREE_TYPE' is a pointer to data member type, then
!      'TYPE_PTRDATAMEM_P' will hold.  For a pointer to data member type
!      of the form 'T X::*', 'TYPE_PTRMEM_CLASS_TYPE' will be the type
!      'X', while 'TYPE_PTRMEM_POINTED_TO_TYPE' will be the type 'T'.
  
! 'RECORD_TYPE'
!      Used to represent 'struct' and 'class' types in C and C++.  If
!      'TYPE_PTRMEMFUNC_P' holds, then this type is a pointer-to-member
!      type.  In that case, the 'TYPE_PTRMEMFUNC_FN_TYPE' is a
!      'POINTER_TYPE' pointing to a 'METHOD_TYPE'.  The 'METHOD_TYPE' is
       the type of a function pointed to by the pointer-to-member
!      function.  If 'TYPE_PTRMEMFUNC_P' does not hold, this type is a
       class type.  For more information, *note Classes::.
  
! 'UNKNOWN_TYPE'
       This node is used to represent a type the knowledge of which is
       insufficient for a sound processing.
  
! 'TYPENAME_TYPE'
!      Used to represent a construct of the form 'typename T::A'.  The
!      'TYPE_CONTEXT' is 'T'; the 'TYPE_NAME' is an 'IDENTIFIER_NODE' for
!      'A'.  If the type is specified via a template-id, then
!      'TYPENAME_TYPE_FULLNAME' yields a 'TEMPLATE_ID_EXPR'.  The
!      'TREE_TYPE' is non-'NULL' if the node is implicitly generated in
       support for the implicit typename extension; in which case the
!      'TREE_TYPE' is a type node for the base-class.
  
+ 'TYPEOF_TYPE'
+      Used to represent the '__typeof__' extension.  The 'TYPE_FIELDS' is
+      the expression the type of which is being represented.
  
  
  File: gccint.info,  Node: Namespaces,  Next: Classes,  Prev: Types for C++,  Up: C and C++ Trees
*************** File: gccint.info,  Node: Namespaces,  N
*** 10146,10152 ****
  ------------------
  
  The root of the entire intermediate representation is the variable
! `global_namespace'.  This is the namespace specified with `::' in C++
  source code.  All other namespaces, types, variables, functions, and so
  forth can be found starting with this namespace.
  
--- 9997,10003 ----
  ------------------
  
  The root of the entire intermediate representation is the variable
! 'global_namespace'.  This is the namespace specified with '::' in C++
  source code.  All other namespaces, types, variables, functions, and so
  forth can be found starting with this namespace.
  
*************** the representation, the global namespace
*** 10155,10215 ****
  namespace.  Thus, in what follows, we describe namespaces generally,
  rather than the global namespace in particular.
  
!  A namespace is represented by a `NAMESPACE_DECL' node.
  
!  The following macros and functions can be used on a `NAMESPACE_DECL':
  
! `DECL_NAME'
!      This macro is used to obtain the `IDENTIFIER_NODE' corresponding to
       the unqualified name of the name of the namespace (*note
!      Identifiers::).  The name of the global namespace is `::', even
!      though in C++ the global namespace is unnamed.  However, you
!      should use comparison with `global_namespace', rather than
!      `DECL_NAME' to determine whether or not a namespace is the global
!      one.  An unnamed namespace will have a `DECL_NAME' equal to
!      `anonymous_namespace_name'.  Within a single translation unit, all
       unnamed namespaces will have the same name.
  
! `DECL_CONTEXT'
!      This macro returns the enclosing namespace.  The `DECL_CONTEXT' for
!      the `global_namespace' is `NULL_TREE'.
  
! `DECL_NAMESPACE_ALIAS'
       If this declaration is for a namespace alias, then
!      `DECL_NAMESPACE_ALIAS' is the namespace for which this one is an
       alias.
  
!      Do not attempt to use `cp_namespace_decls' for a namespace which is
!      an alias.  Instead, follow `DECL_NAMESPACE_ALIAS' links until you
       reach an ordinary, non-alias, namespace, and call
!      `cp_namespace_decls' there.
  
! `DECL_NAMESPACE_STD_P'
!      This predicate holds if the namespace is the special `::std'
       namespace.
  
! `cp_namespace_decls'
       This function will return the declarations contained in the
!      namespace, including types, overloaded functions, other
!      namespaces, and so forth.  If there are no declarations, this
!      function will return `NULL_TREE'.  The declarations are connected
!      through their `TREE_CHAIN' fields.
  
       Although most entries on this list will be declarations,
!      `TREE_LIST' nodes may also appear.  In this case, the `TREE_VALUE'
!      will be an `OVERLOAD'.  The value of the `TREE_PURPOSE' is
!      unspecified; back ends should ignore this value.  As with the
!      other kinds of declarations returned by `cp_namespace_decls', the
!      `TREE_CHAIN' will point to the next declaration in this list.
  
!      For more information on the kinds of declarations that can occur
!      on this list, *Note Declarations::.  Some declarations will not
!      appear on this list.  In particular, no `FIELD_DECL',
!      `LABEL_DECL', or `PARM_DECL' nodes will appear here.
  
       This function cannot be used with namespaces that have
!      `DECL_NAMESPACE_ALIAS' set.
! 
  
  
  File: gccint.info,  Node: Classes,  Next: Functions for C++,  Prev: Namespaces,  Up: C and C++ Trees
--- 10006,10065 ----
  namespace.  Thus, in what follows, we describe namespaces generally,
  rather than the global namespace in particular.
  
!  A namespace is represented by a 'NAMESPACE_DECL' node.
  
!  The following macros and functions can be used on a 'NAMESPACE_DECL':
  
! 'DECL_NAME'
!      This macro is used to obtain the 'IDENTIFIER_NODE' corresponding to
       the unqualified name of the name of the namespace (*note
!      Identifiers::).  The name of the global namespace is '::', even
!      though in C++ the global namespace is unnamed.  However, you should
!      use comparison with 'global_namespace', rather than 'DECL_NAME' to
!      determine whether or not a namespace is the global one.  An unnamed
!      namespace will have a 'DECL_NAME' equal to
!      'anonymous_namespace_name'.  Within a single translation unit, all
       unnamed namespaces will have the same name.
  
! 'DECL_CONTEXT'
!      This macro returns the enclosing namespace.  The 'DECL_CONTEXT' for
!      the 'global_namespace' is 'NULL_TREE'.
  
! 'DECL_NAMESPACE_ALIAS'
       If this declaration is for a namespace alias, then
!      'DECL_NAMESPACE_ALIAS' is the namespace for which this one is an
       alias.
  
!      Do not attempt to use 'cp_namespace_decls' for a namespace which is
!      an alias.  Instead, follow 'DECL_NAMESPACE_ALIAS' links until you
       reach an ordinary, non-alias, namespace, and call
!      'cp_namespace_decls' there.
  
! 'DECL_NAMESPACE_STD_P'
!      This predicate holds if the namespace is the special '::std'
       namespace.
  
! 'cp_namespace_decls'
       This function will return the declarations contained in the
!      namespace, including types, overloaded functions, other namespaces,
!      and so forth.  If there are no declarations, this function will
!      return 'NULL_TREE'.  The declarations are connected through their
!      'TREE_CHAIN' fields.
  
       Although most entries on this list will be declarations,
!      'TREE_LIST' nodes may also appear.  In this case, the 'TREE_VALUE'
!      will be an 'OVERLOAD'.  The value of the 'TREE_PURPOSE' is
!      unspecified; back ends should ignore this value.  As with the other
!      kinds of declarations returned by 'cp_namespace_decls', the
!      'TREE_CHAIN' will point to the next declaration in this list.
  
!      For more information on the kinds of declarations that can occur on
!      this list, *Note Declarations::.  Some declarations will not appear
!      on this list.  In particular, no 'FIELD_DECL', 'LABEL_DECL', or
!      'PARM_DECL' nodes will appear here.
  
       This function cannot be used with namespaces that have
!      'DECL_NAMESPACE_ALIAS' set.
  
  
  File: gccint.info,  Node: Classes,  Next: Functions for C++,  Prev: Namespaces,  Up: C and C++ Trees
*************** File: gccint.info,  Node: Classes,  Next
*** 10220,10456 ****
  Besides namespaces, the other high-level scoping construct in C++ is the
  class.  (Throughout this manual the term "class" is used to mean the
  types referred to in the ANSI/ISO C++ Standard as classes; these include
! types defined with the `class', `struct', and `union' keywords.)
  
!  A class type is represented by either a `RECORD_TYPE' or a
! `UNION_TYPE'.  A class declared with the `union' tag is represented by
! a `UNION_TYPE', while classes declared with either the `struct' or the
! `class' tag are represented by `RECORD_TYPE's.  You can use the
! `CLASSTYPE_DECLARED_CLASS' macro to discern whether or not a particular
! type is a `class' as opposed to a `struct'.  This macro will be true
! only for classes declared with the `class' tag.
  
!  Almost all non-function members are available on the `TYPE_FIELDS'
  list.  Given one member, the next can be found by following the
! `TREE_CHAIN'.  You should not depend in any way on the order in which
! fields appear on this list.  All nodes on this list will be `DECL'
! nodes.  A `FIELD_DECL' is used to represent a non-static data member, a
! `VAR_DECL' is used to represent a static data member, and a `TYPE_DECL'
! is used to represent a type.  Note that the `CONST_DECL' for an
  enumeration constant will appear on this list, if the enumeration type
! was declared in the class.  (Of course, the `TYPE_DECL' for the
  enumeration type will appear here as well.)  There are no entries for
! base classes on this list.  In particular, there is no `FIELD_DECL' for
  the "base-class portion" of an object.
  
!  The `TYPE_VFIELD' is a compiler-generated field used to point to
! virtual function tables.  It may or may not appear on the `TYPE_FIELDS'
! list.  However, back ends should handle the `TYPE_VFIELD' just like all
! the entries on the `TYPE_FIELDS' list.
  
!  The function members are available on the `TYPE_METHODS' list.  Again,
! subsequent members are found by following the `TREE_CHAIN' field.  If a
  function is overloaded, each of the overloaded functions appears; no
! `OVERLOAD' nodes appear on the `TYPE_METHODS' list.  Implicitly
! declared functions (including default constructors, copy constructors,
! assignment operators, and destructors) will appear on this list as well.
  
   Every class has an associated "binfo", which can be obtained with
! `TYPE_BINFO'.  Binfos are used to represent base-classes.  The binfo
! given by `TYPE_BINFO' is the degenerate case, whereby every class is
  considered to be its own base-class.  The base binfos for a particular
  binfo are held in a vector, whose length is obtained with
! `BINFO_N_BASE_BINFOS'.  The base binfos themselves are obtained with
! `BINFO_BASE_BINFO' and `BINFO_BASE_ITERATE'.  To add a new binfo, use
! `BINFO_BASE_APPEND'.  The vector of base binfos can be obtained with
! `BINFO_BASE_BINFOS', but normally you do not need to use that.  The
! class type associated with a binfo is given by `BINFO_TYPE'.  It is not
! always the case that `BINFO_TYPE (TYPE_BINFO (x))', because of typedefs
! and qualified types.  Neither is it the case that `TYPE_BINFO
! (BINFO_TYPE (y))' is the same binfo as `y'.  The reason is that if `y'
! is a binfo representing a base-class `B' of a derived class `D', then
! `BINFO_TYPE (y)' will be `B', and `TYPE_BINFO (BINFO_TYPE (y))' will be
! `B' as its own base-class, rather than as a base-class of `D'.
  
!  The access to a base type can be found with `BINFO_BASE_ACCESS'.  This
! will produce `access_public_node', `access_private_node' or
! `access_protected_node'.  If bases are always public,
! `BINFO_BASE_ACCESSES' may be `NULL'.
  
!  `BINFO_VIRTUAL_P' is used to specify whether the binfo is inherited
! virtually or not.  The other flags, `BINFO_FLAG_0' to `BINFO_FLAG_6',
  can be used for language specific use.
  
   The following macros can be used on a tree node representing a
  class-type.
  
! `LOCAL_CLASS_P'
       This predicate holds if the class is local class _i.e._ declared
       inside a function body.
  
! `TYPE_POLYMORPHIC_P'
       This predicate holds if the class has at least one virtual function
       (declared or inherited).
  
! `TYPE_HAS_DEFAULT_CONSTRUCTOR'
       This predicate holds whenever its argument represents a class-type
       with default constructor.
  
! `CLASSTYPE_HAS_MUTABLE'
! `TYPE_HAS_MUTABLE_P'
       These predicates hold for a class-type having a mutable data
       member.
  
! `CLASSTYPE_NON_POD_P'
       This predicate holds only for class-types that are not PODs.
  
! `TYPE_HAS_NEW_OPERATOR'
!      This predicate holds for a class-type that defines `operator new'.
  
! `TYPE_HAS_ARRAY_NEW_OPERATOR'
!      This predicate holds for a class-type for which `operator new[]'
!      is defined.
  
! `TYPE_OVERLOADS_CALL_EXPR'
       This predicate holds for class-type for which the function call
!      `operator()' is overloaded.
  
! `TYPE_OVERLOADS_ARRAY_REF'
!      This predicate holds for a class-type that overloads `operator[]'
  
! `TYPE_OVERLOADS_ARROW'
!      This predicate holds for a class-type for which `operator->' is
       overloaded.
  
- 
  
  File: gccint.info,  Node: Functions for C++,  Next: Statements for C++,  Prev: Classes,  Up: C and C++ Trees
  
  10.10.4 Functions for C++
  -------------------------
  
! A function is represented by a `FUNCTION_DECL' node.  A set of
! overloaded functions is sometimes represented by an `OVERLOAD' node.
  
!  An `OVERLOAD' node is not a declaration, so none of the `DECL_' macros
! should be used on an `OVERLOAD'.  An `OVERLOAD' node is similar to a
! `TREE_LIST'.  Use `OVL_CURRENT' to get the function associated with an
! `OVERLOAD' node; use `OVL_NEXT' to get the next `OVERLOAD' node in the
! list of overloaded functions.  The macros `OVL_CURRENT' and `OVL_NEXT'
! are actually polymorphic; you can use them to work with `FUNCTION_DECL'
! nodes as well as with overloads.  In the case of a `FUNCTION_DECL',
! `OVL_CURRENT' will always return the function itself, and `OVL_NEXT'
! will always be `NULL_TREE'.
  
!  To determine the scope of a function, you can use the `DECL_CONTEXT'
! macro.  This macro will return the class (either a `RECORD_TYPE' or a
! `UNION_TYPE') or namespace (a `NAMESPACE_DECL') of which the function
! is a member.  For a virtual function, this macro returns the class in
! which the function was actually defined, not the base class in which
! the virtual declaration occurred.
  
   If a friend function is defined in a class scope, the
! `DECL_FRIEND_CONTEXT' macro can be used to determine the class in which
  it was defined.  For example, in
       class C { friend void f() {} };
!  the `DECL_CONTEXT' for `f' will be the `global_namespace', but the
! `DECL_FRIEND_CONTEXT' will be the `RECORD_TYPE' for `C'.
  
!  The following macros and functions can be used on a `FUNCTION_DECL':
! `DECL_MAIN_P'
       This predicate holds for a function that is the program entry point
!      `::code'.
  
! `DECL_LOCAL_FUNCTION_P'
       This predicate holds if the function was declared at block scope,
       even though it has a global scope.
  
! `DECL_ANTICIPATED'
       This predicate holds if the function is a built-in function but its
       prototype is not yet explicitly declared.
  
! `DECL_EXTERN_C_FUNCTION_P'
!      This predicate holds if the function is declared as an ``extern
       "C"'' function.
  
! `DECL_LINKONCE_P'
!      This macro holds if multiple copies of this function may be
!      emitted in various translation units.  It is the responsibility of
!      the linker to merge the various copies.  Template instantiations
!      are the most common example of functions for which
!      `DECL_LINKONCE_P' holds; G++ instantiates needed templates in all
!      translation units which require them, and then relies on the
!      linker to remove duplicate instantiations.
  
       FIXME: This macro is not yet implemented.
  
! `DECL_FUNCTION_MEMBER_P'
       This macro holds if the function is a member of a class, rather
       than a member of a namespace.
  
! `DECL_STATIC_FUNCTION_P'
       This predicate holds if the function a static member function.
  
! `DECL_NONSTATIC_MEMBER_FUNCTION_P'
       This macro holds for a non-static member function.
  
! `DECL_CONST_MEMFUNC_P'
!      This predicate holds for a `const'-member function.
  
! `DECL_VOLATILE_MEMFUNC_P'
!      This predicate holds for a `volatile'-member function.
  
! `DECL_CONSTRUCTOR_P'
       This macro holds if the function is a constructor.
  
! `DECL_NONCONVERTING_P'
       This predicate holds if the constructor is a non-converting
       constructor.
  
! `DECL_COMPLETE_CONSTRUCTOR_P'
       This predicate holds for a function which is a constructor for an
       object of a complete type.
  
! `DECL_BASE_CONSTRUCTOR_P'
       This predicate holds for a function which is a constructor for a
       base class sub-object.
  
! `DECL_COPY_CONSTRUCTOR_P'
       This predicate holds for a function which is a copy-constructor.
  
! `DECL_DESTRUCTOR_P'
       This macro holds if the function is a destructor.
  
! `DECL_COMPLETE_DESTRUCTOR_P'
       This predicate holds if the function is the destructor for an
       object a complete type.
  
! `DECL_OVERLOADED_OPERATOR_P'
       This macro holds if the function is an overloaded operator.
  
! `DECL_CONV_FN_P'
       This macro holds if the function is a type-conversion operator.
  
! `DECL_GLOBAL_CTOR_P'
       This predicate holds if the function is a file-scope initialization
       function.
  
! `DECL_GLOBAL_DTOR_P'
       This predicate holds if the function is a file-scope finalization
       function.
  
! `DECL_THUNK_P'
       This predicate holds if the function is a thunk.
  
!      These functions represent stub code that adjusts the `this' pointer
       and then jumps to another function.  When the jumped-to function
       returns, control is transferred directly to the caller, without
!      returning to the thunk.  The first parameter to the thunk is
!      always the `this' pointer; the thunk should add `THUNK_DELTA' to
!      this value.  (The `THUNK_DELTA' is an `int', not an `INTEGER_CST'.)
  
!      Then, if `THUNK_VCALL_OFFSET' (an `INTEGER_CST') is nonzero the
!      adjusted `this' pointer must be adjusted again.  The complete
       calculation is given by the following pseudo-code:
  
            this += THUNK_DELTA
--- 10070,10305 ----
  Besides namespaces, the other high-level scoping construct in C++ is the
  class.  (Throughout this manual the term "class" is used to mean the
  types referred to in the ANSI/ISO C++ Standard as classes; these include
! types defined with the 'class', 'struct', and 'union' keywords.)
  
!  A class type is represented by either a 'RECORD_TYPE' or a
! 'UNION_TYPE'.  A class declared with the 'union' tag is represented by a
! 'UNION_TYPE', while classes declared with either the 'struct' or the
! 'class' tag are represented by 'RECORD_TYPE's.  You can use the
! 'CLASSTYPE_DECLARED_CLASS' macro to discern whether or not a particular
! type is a 'class' as opposed to a 'struct'.  This macro will be true
! only for classes declared with the 'class' tag.
  
!  Almost all non-function members are available on the 'TYPE_FIELDS'
  list.  Given one member, the next can be found by following the
! 'TREE_CHAIN'.  You should not depend in any way on the order in which
! fields appear on this list.  All nodes on this list will be 'DECL'
! nodes.  A 'FIELD_DECL' is used to represent a non-static data member, a
! 'VAR_DECL' is used to represent a static data member, and a 'TYPE_DECL'
! is used to represent a type.  Note that the 'CONST_DECL' for an
  enumeration constant will appear on this list, if the enumeration type
! was declared in the class.  (Of course, the 'TYPE_DECL' for the
  enumeration type will appear here as well.)  There are no entries for
! base classes on this list.  In particular, there is no 'FIELD_DECL' for
  the "base-class portion" of an object.
  
!  The 'TYPE_VFIELD' is a compiler-generated field used to point to
! virtual function tables.  It may or may not appear on the 'TYPE_FIELDS'
! list.  However, back ends should handle the 'TYPE_VFIELD' just like all
! the entries on the 'TYPE_FIELDS' list.
  
!  The function members are available on the 'TYPE_METHODS' list.  Again,
! subsequent members are found by following the 'TREE_CHAIN' field.  If a
  function is overloaded, each of the overloaded functions appears; no
! 'OVERLOAD' nodes appear on the 'TYPE_METHODS' list.  Implicitly declared
! functions (including default constructors, copy constructors, assignment
! operators, and destructors) will appear on this list as well.
  
   Every class has an associated "binfo", which can be obtained with
! 'TYPE_BINFO'.  Binfos are used to represent base-classes.  The binfo
! given by 'TYPE_BINFO' is the degenerate case, whereby every class is
  considered to be its own base-class.  The base binfos for a particular
  binfo are held in a vector, whose length is obtained with
! 'BINFO_N_BASE_BINFOS'.  The base binfos themselves are obtained with
! 'BINFO_BASE_BINFO' and 'BINFO_BASE_ITERATE'.  To add a new binfo, use
! 'BINFO_BASE_APPEND'.  The vector of base binfos can be obtained with
! 'BINFO_BASE_BINFOS', but normally you do not need to use that.  The
! class type associated with a binfo is given by 'BINFO_TYPE'.  It is not
! always the case that 'BINFO_TYPE (TYPE_BINFO (x))', because of typedefs
! and qualified types.  Neither is it the case that 'TYPE_BINFO
! (BINFO_TYPE (y))' is the same binfo as 'y'.  The reason is that if 'y'
! is a binfo representing a base-class 'B' of a derived class 'D', then
! 'BINFO_TYPE (y)' will be 'B', and 'TYPE_BINFO (BINFO_TYPE (y))' will be
! 'B' as its own base-class, rather than as a base-class of 'D'.
  
!  The access to a base type can be found with 'BINFO_BASE_ACCESS'.  This
! will produce 'access_public_node', 'access_private_node' or
! 'access_protected_node'.  If bases are always public,
! 'BINFO_BASE_ACCESSES' may be 'NULL'.
  
!  'BINFO_VIRTUAL_P' is used to specify whether the binfo is inherited
! virtually or not.  The other flags, 'BINFO_FLAG_0' to 'BINFO_FLAG_6',
  can be used for language specific use.
  
   The following macros can be used on a tree node representing a
  class-type.
  
! 'LOCAL_CLASS_P'
       This predicate holds if the class is local class _i.e._ declared
       inside a function body.
  
! 'TYPE_POLYMORPHIC_P'
       This predicate holds if the class has at least one virtual function
       (declared or inherited).
  
! 'TYPE_HAS_DEFAULT_CONSTRUCTOR'
       This predicate holds whenever its argument represents a class-type
       with default constructor.
  
! 'CLASSTYPE_HAS_MUTABLE'
! 'TYPE_HAS_MUTABLE_P'
       These predicates hold for a class-type having a mutable data
       member.
  
! 'CLASSTYPE_NON_POD_P'
       This predicate holds only for class-types that are not PODs.
  
! 'TYPE_HAS_NEW_OPERATOR'
!      This predicate holds for a class-type that defines 'operator new'.
  
! 'TYPE_HAS_ARRAY_NEW_OPERATOR'
!      This predicate holds for a class-type for which 'operator new[]' is
!      defined.
  
! 'TYPE_OVERLOADS_CALL_EXPR'
       This predicate holds for class-type for which the function call
!      'operator()' is overloaded.
  
! 'TYPE_OVERLOADS_ARRAY_REF'
!      This predicate holds for a class-type that overloads 'operator[]'
  
! 'TYPE_OVERLOADS_ARROW'
!      This predicate holds for a class-type for which 'operator->' is
       overloaded.
  
  
  File: gccint.info,  Node: Functions for C++,  Next: Statements for C++,  Prev: Classes,  Up: C and C++ Trees
  
  10.10.4 Functions for C++
  -------------------------
  
! A function is represented by a 'FUNCTION_DECL' node.  A set of
! overloaded functions is sometimes represented by an 'OVERLOAD' node.
  
!  An 'OVERLOAD' node is not a declaration, so none of the 'DECL_' macros
! should be used on an 'OVERLOAD'.  An 'OVERLOAD' node is similar to a
! 'TREE_LIST'.  Use 'OVL_CURRENT' to get the function associated with an
! 'OVERLOAD' node; use 'OVL_NEXT' to get the next 'OVERLOAD' node in the
! list of overloaded functions.  The macros 'OVL_CURRENT' and 'OVL_NEXT'
! are actually polymorphic; you can use them to work with 'FUNCTION_DECL'
! nodes as well as with overloads.  In the case of a 'FUNCTION_DECL',
! 'OVL_CURRENT' will always return the function itself, and 'OVL_NEXT'
! will always be 'NULL_TREE'.
  
!  To determine the scope of a function, you can use the 'DECL_CONTEXT'
! macro.  This macro will return the class (either a 'RECORD_TYPE' or a
! 'UNION_TYPE') or namespace (a 'NAMESPACE_DECL') of which the function is
! a member.  For a virtual function, this macro returns the class in which
! the function was actually defined, not the base class in which the
! virtual declaration occurred.
  
   If a friend function is defined in a class scope, the
! 'DECL_FRIEND_CONTEXT' macro can be used to determine the class in which
  it was defined.  For example, in
       class C { friend void f() {} };
! the 'DECL_CONTEXT' for 'f' will be the 'global_namespace', but the
! 'DECL_FRIEND_CONTEXT' will be the 'RECORD_TYPE' for 'C'.
  
!  The following macros and functions can be used on a 'FUNCTION_DECL':
! 'DECL_MAIN_P'
       This predicate holds for a function that is the program entry point
!      '::code'.
  
! 'DECL_LOCAL_FUNCTION_P'
       This predicate holds if the function was declared at block scope,
       even though it has a global scope.
  
! 'DECL_ANTICIPATED'
       This predicate holds if the function is a built-in function but its
       prototype is not yet explicitly declared.
  
! 'DECL_EXTERN_C_FUNCTION_P'
!      This predicate holds if the function is declared as an ''extern
       "C"'' function.
  
! 'DECL_LINKONCE_P'
!      This macro holds if multiple copies of this function may be emitted
!      in various translation units.  It is the responsibility of the
!      linker to merge the various copies.  Template instantiations are
!      the most common example of functions for which 'DECL_LINKONCE_P'
!      holds; G++ instantiates needed templates in all translation units
!      which require them, and then relies on the linker to remove
!      duplicate instantiations.
  
       FIXME: This macro is not yet implemented.
  
! 'DECL_FUNCTION_MEMBER_P'
       This macro holds if the function is a member of a class, rather
       than a member of a namespace.
  
! 'DECL_STATIC_FUNCTION_P'
       This predicate holds if the function a static member function.
  
! 'DECL_NONSTATIC_MEMBER_FUNCTION_P'
       This macro holds for a non-static member function.
  
! 'DECL_CONST_MEMFUNC_P'
!      This predicate holds for a 'const'-member function.
  
! 'DECL_VOLATILE_MEMFUNC_P'
!      This predicate holds for a 'volatile'-member function.
  
! 'DECL_CONSTRUCTOR_P'
       This macro holds if the function is a constructor.
  
! 'DECL_NONCONVERTING_P'
       This predicate holds if the constructor is a non-converting
       constructor.
  
! 'DECL_COMPLETE_CONSTRUCTOR_P'
       This predicate holds for a function which is a constructor for an
       object of a complete type.
  
! 'DECL_BASE_CONSTRUCTOR_P'
       This predicate holds for a function which is a constructor for a
       base class sub-object.
  
! 'DECL_COPY_CONSTRUCTOR_P'
       This predicate holds for a function which is a copy-constructor.
  
! 'DECL_DESTRUCTOR_P'
       This macro holds if the function is a destructor.
  
! 'DECL_COMPLETE_DESTRUCTOR_P'
       This predicate holds if the function is the destructor for an
       object a complete type.
  
! 'DECL_OVERLOADED_OPERATOR_P'
       This macro holds if the function is an overloaded operator.
  
! 'DECL_CONV_FN_P'
       This macro holds if the function is a type-conversion operator.
  
! 'DECL_GLOBAL_CTOR_P'
       This predicate holds if the function is a file-scope initialization
       function.
  
! 'DECL_GLOBAL_DTOR_P'
       This predicate holds if the function is a file-scope finalization
       function.
  
! 'DECL_THUNK_P'
       This predicate holds if the function is a thunk.
  
!      These functions represent stub code that adjusts the 'this' pointer
       and then jumps to another function.  When the jumped-to function
       returns, control is transferred directly to the caller, without
!      returning to the thunk.  The first parameter to the thunk is always
!      the 'this' pointer; the thunk should add 'THUNK_DELTA' to this
!      value.  (The 'THUNK_DELTA' is an 'int', not an 'INTEGER_CST'.)
  
!      Then, if 'THUNK_VCALL_OFFSET' (an 'INTEGER_CST') is nonzero the
!      adjusted 'this' pointer must be adjusted again.  The complete
       calculation is given by the following pseudo-code:
  
            this += THUNK_DELTA
*************** it was defined.  For example, in
*** 10458,10491 ****
              this += (*((ptrdiff_t **) this))[THUNK_VCALL_OFFSET]
  
       Finally, the thunk should jump to the location given by
!      `DECL_INITIAL'; this will always be an expression for the address
       of a function.
  
! `DECL_NON_THUNK_FUNCTION_P'
       This predicate holds if the function is _not_ a thunk function.
  
! `GLOBAL_INIT_PRIORITY'
!      If either `DECL_GLOBAL_CTOR_P' or `DECL_GLOBAL_DTOR_P' holds, then
       this gives the initialization priority for the function.  The
       linker will arrange that all functions for which
!      `DECL_GLOBAL_CTOR_P' holds are run in increasing order of priority
!      before `main' is called.  When the program exits, all functions for
!      which `DECL_GLOBAL_DTOR_P' holds are run in the reverse order.
  
! `TYPE_RAISES_EXCEPTIONS'
       This macro returns the list of exceptions that a (member-)function
!      can raise.  The returned list, if non `NULL', is comprised of nodes
!      whose `TREE_VALUE' represents a type.
  
! `TYPE_NOTHROW_P'
       This predicate holds when the exception-specification of its
!      arguments is of the form ``()''.
  
! `DECL_ARRAY_DELETE_OPERATOR_P'
!      This predicate holds if the function an overloaded `operator
       delete[]'.
  
- 
  
  File: gccint.info,  Node: Statements for C++,  Next: C++ Expressions,  Prev: Functions for C++,  Up: C and C++ Trees
  
--- 10307,10339 ----
              this += (*((ptrdiff_t **) this))[THUNK_VCALL_OFFSET]
  
       Finally, the thunk should jump to the location given by
!      'DECL_INITIAL'; this will always be an expression for the address
       of a function.
  
! 'DECL_NON_THUNK_FUNCTION_P'
       This predicate holds if the function is _not_ a thunk function.
  
! 'GLOBAL_INIT_PRIORITY'
!      If either 'DECL_GLOBAL_CTOR_P' or 'DECL_GLOBAL_DTOR_P' holds, then
       this gives the initialization priority for the function.  The
       linker will arrange that all functions for which
!      'DECL_GLOBAL_CTOR_P' holds are run in increasing order of priority
!      before 'main' is called.  When the program exits, all functions for
!      which 'DECL_GLOBAL_DTOR_P' holds are run in the reverse order.
  
! 'TYPE_RAISES_EXCEPTIONS'
       This macro returns the list of exceptions that a (member-)function
!      can raise.  The returned list, if non 'NULL', is comprised of nodes
!      whose 'TREE_VALUE' represents a type.
  
! 'TYPE_NOTHROW_P'
       This predicate holds when the exception-specification of its
!      arguments is of the form ''()''.
  
! 'DECL_ARRAY_DELETE_OPERATOR_P'
!      This predicate holds if the function an overloaded 'operator
       delete[]'.
  
  
  File: gccint.info,  Node: Statements for C++,  Next: C++ Expressions,  Prev: Functions for C++,  Up: C and C++ Trees
  
*************** File: gccint.info,  Node: Statements for
*** 10493,10502 ****
  --------------------------
  
  A function that has a definition in the current translation unit will
! have a non-`NULL' `DECL_INITIAL'.  However, back ends should not make
! use of the particular value given by `DECL_INITIAL'.
  
!  The `DECL_SAVED_TREE' macro will give the complete body of the
  function.
  
  10.10.5.1 Statements
--- 10341,10350 ----
  --------------------------
  
  A function that has a definition in the current translation unit will
! have a non-'NULL' 'DECL_INITIAL'.  However, back ends should not make
! use of the particular value given by 'DECL_INITIAL'.
  
!  The 'DECL_SAVED_TREE' macro will give the complete body of the
  function.
  
  10.10.5.1 Statements
*************** here, together with a list of the variou
*** 10508,10522 ****
  obtain information about them.  There are a few macros that can be used
  with all statements:
  
! `STMT_IS_FULL_EXPR_P'
       In C++, statements normally constitute "full expressions";
       temporaries created during a statement are destroyed when the
       statement is complete.  However, G++ sometimes represents
       expressions by statements; these statements will not have
!      `STMT_IS_FULL_EXPR_P' set.  Temporaries created during such
       statements should be destroyed when the innermost enclosing
!      statement with `STMT_IS_FULL_EXPR_P' set is exited.
! 
  
   Here is the list of the various statement nodes, and the macros used to
  access them.  This documentation describes the use of these nodes in
--- 10356,10369 ----
  obtain information about them.  There are a few macros that can be used
  with all statements:
  
! 'STMT_IS_FULL_EXPR_P'
       In C++, statements normally constitute "full expressions";
       temporaries created during a statement are destroyed when the
       statement is complete.  However, G++ sometimes represents
       expressions by statements; these statements will not have
!      'STMT_IS_FULL_EXPR_P' set.  Temporaries created during such
       statements should be destroyed when the innermost enclosing
!      statement with 'STMT_IS_FULL_EXPR_P' set is exited.
  
   Here is the list of the various statement nodes, and the macros used to
  access them.  This documentation describes the use of these nodes in
*************** non-template functions (including instan
*** 10524,10535 ****
  In template functions, the same nodes are used, but sometimes in
  slightly different ways.
  
!  Many of the statements have substatements.  For example, a `while'
! loop will have a body, which is itself a statement.  If the substatement
! is `NULL_TREE', it is considered equivalent to a statement consisting
! of a single `;', i.e., an expression statement in which the expression
! has been omitted.  A substatement may in fact be a list of statements,
! connected via their `TREE_CHAIN's.  So, you should always process the
  statement tree by looping over substatements, like this:
       void process_stmt (stmt)
            tree stmt;
--- 10371,10382 ----
  In template functions, the same nodes are used, but sometimes in
  slightly different ways.
  
!  Many of the statements have substatements.  For example, a 'while' loop
! will have a body, which is itself a statement.  If the substatement is
! 'NULL_TREE', it is considered equivalent to a statement consisting of a
! single ';', i.e., an expression statement in which the expression has
! been omitted.  A substatement may in fact be a list of statements,
! connected via their 'TREE_CHAIN's.  So, you should always process the
  statement tree by looping over substatements, like this:
       void process_stmt (stmt)
            tree stmt;
*************** statement tree by looping over substatem
*** 10549,10645 ****
             stmt = TREE_CHAIN (stmt);
           }
       }
!  In other words, while the `then' clause of an `if' statement in C++
! can be only one statement (although that one statement may be a
! compound statement), the intermediate representation will sometimes use
! several statements chained together.
  
! `BREAK_STMT'
!      Used to represent a `break' statement.  There are no additional
       fields.
  
! `CILK_SPAWN_STMT'
       Used to represent a spawning function in the Cilk Plus language
       extension.  This tree has one field that holds the name of the
!      spawning function.  `_Cilk_spawn' can be written in C in the
       following way:
  
!           `_Cilk_spawn' <function_name> (<parameters>);
  
!      Detailed description for usage and functionality of `_Cilk_spawn'
!      can be found at `https://www.cilkplus.org'.
  
- `CILK_SYNC_STMT'
       This statement is part of the Cilk Plus language extension.  It
       indicates that the current function cannot continue in parallel
       with its spawned children.  There are no additional fields.
!      `_Cilk_sync' can be written in C in the following way:
  
!           `_Cilk_sync';
  
- `CLEANUP_STMT'
       Used to represent an action that should take place upon exit from
       the enclosing scope.  Typically, these actions are calls to
       destructors for local objects, but back ends cannot rely on this
       fact.  If these nodes are in fact representing such destructors,
!      `CLEANUP_DECL' will be the `VAR_DECL' destroyed.  Otherwise,
!      `CLEANUP_DECL' will be `NULL_TREE'.  In any case, the
!      `CLEANUP_EXPR' is the expression to execute.  The cleanups
!      executed on exit from a scope should be run in the reverse order
!      of the order in which the associated `CLEANUP_STMT's were
!      encountered.
  
! `CONTINUE_STMT'
!      Used to represent a `continue' statement.  There are no additional
       fields.
  
! `CTOR_STMT'
!      Used to mark the beginning (if `CTOR_BEGIN_P' holds) or end (if
!      `CTOR_END_P' holds of the main body of a constructor.  See also
!      `SUBOBJECT' for more information on how to use these nodes.
  
! `DO_STMT'
!      Used to represent a `do' loop.  The body of the loop is given by
!      `DO_BODY' while the termination condition for the loop is given by
!      `DO_COND'.  The condition for a `do'-statement is always an
       expression.
  
! `EMPTY_CLASS_EXPR'
       Used to represent a temporary object of a class with no data whose
       address is never taken.  (All such objects are interchangeable.)
!      The `TREE_TYPE' represents the type of the object.
  
! `EXPR_STMT'
!      Used to represent an expression statement.  Use `EXPR_STMT_EXPR' to
       obtain the expression.
  
! `FOR_STMT'
!      Used to represent a `for' statement.  The `FOR_INIT_STMT' is the
!      initialization statement for the loop.  The `FOR_COND' is the
!      termination condition.  The `FOR_EXPR' is the expression executed
!      right before the `FOR_COND' on each loop iteration; often, this
       expression increments a counter.  The body of the loop is given by
!      `FOR_BODY'.  Note that `FOR_INIT_STMT' and `FOR_BODY' return
!      statements, while `FOR_COND' and `FOR_EXPR' return expressions.
  
! `HANDLER'
!      Used to represent a C++ `catch' block.  The `HANDLER_TYPE' is the
       type of exception that will be caught by this handler; it is equal
!      (by pointer equality) to `NULL' if this handler is for all types.
!      `HANDLER_PARMS' is the `DECL_STMT' for the catch parameter, and
!      `HANDLER_BODY' is the code for the block itself.
  
! `IF_STMT'
!      Used to represent an `if' statement.  The `IF_COND' is the
       expression.
  
!      If the condition is a `TREE_LIST', then the `TREE_PURPOSE' is a
!      statement (usually a `DECL_STMT').  Each time the condition is
       evaluated, the statement should be executed.  Then, the
!      `TREE_VALUE' should be used as the conditional expression itself.
       This representation is used to handle C++ code like this:
  
!      C++ distinguishes between this and `COND_EXPR' for handling
       templates.
  
            if (int i = 7) ...
--- 10396,10503 ----
             stmt = TREE_CHAIN (stmt);
           }
       }
!  In other words, while the 'then' clause of an 'if' statement in C++ can
! be only one statement (although that one statement may be a compound
! statement), the intermediate representation will sometimes use several
! statements chained together.
  
! 'BREAK_STMT'
! 
!      Used to represent a 'break' statement.  There are no additional
       fields.
  
! 'CILK_SPAWN_STMT'
! 
       Used to represent a spawning function in the Cilk Plus language
       extension.  This tree has one field that holds the name of the
!      spawning function.  '_Cilk_spawn' can be written in C in the
       following way:
  
!           _Cilk_spawn <function_name> (<parameters>);
  
!      Detailed description for usage and functionality of '_Cilk_spawn'
!      can be found at <https://www.cilkplus.org>.
! 
! 'CILK_SYNC_STMT'
  
       This statement is part of the Cilk Plus language extension.  It
       indicates that the current function cannot continue in parallel
       with its spawned children.  There are no additional fields.
!      '_Cilk_sync' can be written in C in the following way:
  
!           _Cilk_sync;
! 
! 'CLEANUP_STMT'
  
       Used to represent an action that should take place upon exit from
       the enclosing scope.  Typically, these actions are calls to
       destructors for local objects, but back ends cannot rely on this
       fact.  If these nodes are in fact representing such destructors,
!      'CLEANUP_DECL' will be the 'VAR_DECL' destroyed.  Otherwise,
!      'CLEANUP_DECL' will be 'NULL_TREE'.  In any case, the
!      'CLEANUP_EXPR' is the expression to execute.  The cleanups executed
!      on exit from a scope should be run in the reverse order of the
!      order in which the associated 'CLEANUP_STMT's were encountered.
  
! 'CONTINUE_STMT'
! 
!      Used to represent a 'continue' statement.  There are no additional
       fields.
  
! 'CTOR_STMT'
  
!      Used to mark the beginning (if 'CTOR_BEGIN_P' holds) or end (if
!      'CTOR_END_P' holds of the main body of a constructor.  See also
!      'SUBOBJECT' for more information on how to use these nodes.
! 
! 'DO_STMT'
! 
!      Used to represent a 'do' loop.  The body of the loop is given by
!      'DO_BODY' while the termination condition for the loop is given by
!      'DO_COND'.  The condition for a 'do'-statement is always an
       expression.
  
! 'EMPTY_CLASS_EXPR'
! 
       Used to represent a temporary object of a class with no data whose
       address is never taken.  (All such objects are interchangeable.)
!      The 'TREE_TYPE' represents the type of the object.
  
! 'EXPR_STMT'
! 
!      Used to represent an expression statement.  Use 'EXPR_STMT_EXPR' to
       obtain the expression.
  
! 'FOR_STMT'
! 
!      Used to represent a 'for' statement.  The 'FOR_INIT_STMT' is the
!      initialization statement for the loop.  The 'FOR_COND' is the
!      termination condition.  The 'FOR_EXPR' is the expression executed
!      right before the 'FOR_COND' on each loop iteration; often, this
       expression increments a counter.  The body of the loop is given by
!      'FOR_BODY'.  Note that 'FOR_INIT_STMT' and 'FOR_BODY' return
!      statements, while 'FOR_COND' and 'FOR_EXPR' return expressions.
  
! 'HANDLER'
! 
!      Used to represent a C++ 'catch' block.  The 'HANDLER_TYPE' is the
       type of exception that will be caught by this handler; it is equal
!      (by pointer equality) to 'NULL' if this handler is for all types.
!      'HANDLER_PARMS' is the 'DECL_STMT' for the catch parameter, and
!      'HANDLER_BODY' is the code for the block itself.
  
! 'IF_STMT'
! 
!      Used to represent an 'if' statement.  The 'IF_COND' is the
       expression.
  
!      If the condition is a 'TREE_LIST', then the 'TREE_PURPOSE' is a
!      statement (usually a 'DECL_STMT').  Each time the condition is
       evaluated, the statement should be executed.  Then, the
!      'TREE_VALUE' should be used as the conditional expression itself.
       This representation is used to handle C++ code like this:
  
!      C++ distinguishes between this and 'COND_EXPR' for handling
       templates.
  
            if (int i = 7) ...
*************** several statements chained together.
*** 10647,10702 ****
       where there is a new local variable (or variables) declared within
       the condition.
  
!      The `THEN_CLAUSE' represents the statement given by the `then'
!      condition, while the `ELSE_CLAUSE' represents the statement given
!      by the `else' condition.
  
- `SUBOBJECT'
       In a constructor, these nodes are used to mark the point at which a
!      subobject of `this' is fully constructed.  If, after this point, an
!      exception is thrown before a `CTOR_STMT' with `CTOR_END_P' set is
!      encountered, the `SUBOBJECT_CLEANUP' must be executed.  The
       cleanups must be executed in the reverse order in which they
       appear.
  
! `SWITCH_STMT'
!      Used to represent a `switch' statement.  The `SWITCH_STMT_COND' is
       the expression on which the switch is occurring.  See the
!      documentation for an `IF_STMT' for more information on the
!      representation used for the condition.  The `SWITCH_STMT_BODY' is
!      the body of the switch statement.   The `SWITCH_STMT_TYPE' is the
       original type of switch expression as given in the source, before
       any compiler conversions.
  
! `TRY_BLOCK'
!      Used to represent a `try' block.  The body of the try block is
!      given by `TRY_STMTS'.  Each of the catch blocks is a `HANDLER'
!      node.  The first handler is given by `TRY_HANDLERS'.  Subsequent
!      handlers are obtained by following the `TREE_CHAIN' link from one
       handler to the next.  The body of the handler is given by
!      `HANDLER_BODY'.
  
!      If `CLEANUP_P' holds of the `TRY_BLOCK', then the `TRY_HANDLERS'
!      will not be a `HANDLER' node.  Instead, it will be an expression
!      that should be executed if an exception is thrown in the try
!      block.  It must rethrow the exception after executing that code.
!      And, if an exception is thrown while the expression is executing,
!      `terminate' must be called.
  
! `USING_STMT'
!      Used to represent a `using' directive.  The namespace is given by
!      `USING_STMT_NAMESPACE', which will be a NAMESPACE_DECL.  This node
       is needed inside template functions, to implement using directives
       during instantiation.
  
! `WHILE_STMT'
!      Used to represent a `while' loop.  The `WHILE_COND' is the
       termination condition for the loop.  See the documentation for an
!      `IF_STMT' for more information on the representation used for the
       condition.
  
!      The `WHILE_BODY' is the body of the loop.
! 
  
  
  File: gccint.info,  Node: C++ Expressions,  Prev: Statements for C++,  Up: C and C++ Trees
--- 10505,10562 ----
       where there is a new local variable (or variables) declared within
       the condition.
  
!      The 'THEN_CLAUSE' represents the statement given by the 'then'
!      condition, while the 'ELSE_CLAUSE' represents the statement given
!      by the 'else' condition.
! 
! 'SUBOBJECT'
  
       In a constructor, these nodes are used to mark the point at which a
!      subobject of 'this' is fully constructed.  If, after this point, an
!      exception is thrown before a 'CTOR_STMT' with 'CTOR_END_P' set is
!      encountered, the 'SUBOBJECT_CLEANUP' must be executed.  The
       cleanups must be executed in the reverse order in which they
       appear.
  
! 'SWITCH_STMT'
! 
!      Used to represent a 'switch' statement.  The 'SWITCH_STMT_COND' is
       the expression on which the switch is occurring.  See the
!      documentation for an 'IF_STMT' for more information on the
!      representation used for the condition.  The 'SWITCH_STMT_BODY' is
!      the body of the switch statement.  The 'SWITCH_STMT_TYPE' is the
       original type of switch expression as given in the source, before
       any compiler conversions.
  
! 'TRY_BLOCK'
!      Used to represent a 'try' block.  The body of the try block is
!      given by 'TRY_STMTS'.  Each of the catch blocks is a 'HANDLER'
!      node.  The first handler is given by 'TRY_HANDLERS'.  Subsequent
!      handlers are obtained by following the 'TREE_CHAIN' link from one
       handler to the next.  The body of the handler is given by
!      'HANDLER_BODY'.
  
!      If 'CLEANUP_P' holds of the 'TRY_BLOCK', then the 'TRY_HANDLERS'
!      will not be a 'HANDLER' node.  Instead, it will be an expression
!      that should be executed if an exception is thrown in the try block.
!      It must rethrow the exception after executing that code.  And, if
!      an exception is thrown while the expression is executing,
!      'terminate' must be called.
  
! 'USING_STMT'
!      Used to represent a 'using' directive.  The namespace is given by
!      'USING_STMT_NAMESPACE', which will be a NAMESPACE_DECL.  This node
       is needed inside template functions, to implement using directives
       during instantiation.
  
! 'WHILE_STMT'
! 
!      Used to represent a 'while' loop.  The 'WHILE_COND' is the
       termination condition for the loop.  See the documentation for an
!      'IF_STMT' for more information on the representation used for the
       condition.
  
!      The 'WHILE_BODY' is the body of the loop.
  
  
  File: gccint.info,  Node: C++ Expressions,  Prev: Statements for C++,  Up: C and C++ Trees
*************** File: gccint.info,  Node: C++ Expression
*** 10706,10747 ****
  
  This section describes expressions specific to the C and C++ front ends.
  
! `TYPEID_EXPR'
!      Used to represent a `typeid' expression.
  
! `NEW_EXPR'
! `VEC_NEW_EXPR'
!      Used to represent a call to `new' and `new[]' respectively.
  
! `DELETE_EXPR'
! `VEC_DELETE_EXPR'
!      Used to represent a call to `delete' and `delete[]' respectively.
  
- `MEMBER_REF'
       Represents a reference to a member of a class.
  
! `THROW_EXPR'
!      Represents an instance of `throw' in the program.  Operand 0,
!      which is the expression to throw, may be `NULL_TREE'.
  
! `AGGR_INIT_EXPR'
!      An `AGGR_INIT_EXPR' represents the initialization as the return
       value of a function call, or as the result of a constructor.  An
!      `AGGR_INIT_EXPR' will only appear as a full-expression, or as the
!      second operand of a `TARGET_EXPR'.  `AGGR_INIT_EXPR's have a
!      representation similar to that of `CALL_EXPR's.  You can use the
!      `AGGR_INIT_EXPR_FN' and `AGGR_INIT_EXPR_ARG' macros to access the
       function to call and the arguments to pass.
  
!      If `AGGR_INIT_VIA_CTOR_P' holds of the `AGGR_INIT_EXPR', then the
       initialization is via a constructor call.  The address of the
!      `AGGR_INIT_EXPR_SLOT' operand, which is always a `VAR_DECL', is
       taken, and this value replaces the first argument in the argument
       list.
  
       In either case, the expression is void.
  
- 
  
  File: gccint.info,  Node: Java Trees,  Prev: C and C++ Trees,  Up: GENERIC
  
--- 10566,10611 ----
  
  This section describes expressions specific to the C and C++ front ends.
  
! 'TYPEID_EXPR'
  
!      Used to represent a 'typeid' expression.
  
! 'NEW_EXPR'
! 'VEC_NEW_EXPR'
! 
!      Used to represent a call to 'new' and 'new[]' respectively.
! 
! 'DELETE_EXPR'
! 'VEC_DELETE_EXPR'
! 
!      Used to represent a call to 'delete' and 'delete[]' respectively.
! 
! 'MEMBER_REF'
  
       Represents a reference to a member of a class.
  
! 'THROW_EXPR'
  
!      Represents an instance of 'throw' in the program.  Operand 0, which
!      is the expression to throw, may be 'NULL_TREE'.
! 
! 'AGGR_INIT_EXPR'
!      An 'AGGR_INIT_EXPR' represents the initialization as the return
       value of a function call, or as the result of a constructor.  An
!      'AGGR_INIT_EXPR' will only appear as a full-expression, or as the
!      second operand of a 'TARGET_EXPR'.  'AGGR_INIT_EXPR's have a
!      representation similar to that of 'CALL_EXPR's.  You can use the
!      'AGGR_INIT_EXPR_FN' and 'AGGR_INIT_EXPR_ARG' macros to access the
       function to call and the arguments to pass.
  
!      If 'AGGR_INIT_VIA_CTOR_P' holds of the 'AGGR_INIT_EXPR', then the
       initialization is via a constructor call.  The address of the
!      'AGGR_INIT_EXPR_SLOT' operand, which is always a 'VAR_DECL', is
       taken, and this value replaces the first argument in the argument
       list.
  
       In either case, the expression is void.
  
  
  File: gccint.info,  Node: Java Trees,  Prev: C and C++ Trees,  Up: GENERIC
  
*************** File: gccint.info,  Node: GIMPLE,  Next:
*** 10755,10816 ****
  *********
  
  GIMPLE is a three-address representation derived from GENERIC by
! breaking down GENERIC expressions into tuples of no more than 3
! operands (with some exceptions like function calls).  GIMPLE was
! heavily influenced by the SIMPLE IL used by the McCAT compiler project
! at McGill University, though we have made some different choices.  For
! one thing, SIMPLE doesn't support `goto'.
  
   Temporaries are introduced to hold intermediate values needed to
! compute complex expressions. Additionally, all the control structures
  used in GENERIC are lowered into conditional jumps, lexical scopes are
  removed and exception regions are converted into an on the side
  exception region tree.
  
   The compiler pass which converts GENERIC into GIMPLE is referred to as
! the `gimplifier'.  The gimplifier works recursively, generating GIMPLE
  tuples out of the original GENERIC expressions.
  
   One of the early implementation strategies used for the GIMPLE
  representation was to use the same internal data structures used by
! front ends to represent parse trees. This simplified implementation
  because we could leverage existing functionality and interfaces.
  However, GIMPLE is a much more restrictive representation than abstract
  syntax trees (AST), therefore it does not require the full structural
  complexity provided by the main tree data structure.
  
   The GENERIC representation of a function is stored in the
! `DECL_SAVED_TREE' field of the associated `FUNCTION_DECL' tree node.
! It is converted to GIMPLE by a call to `gimplify_function_tree'.
  
   If a front end wants to include language-specific tree codes in the
  tree representation which it provides to the back end, it must provide a
! definition of `LANG_HOOKS_GIMPLIFY_EXPR' which knows how to convert the
! front end trees to GIMPLE.  Usually such a hook will involve much of
! the same code for expanding front end trees to RTL.  This function can
  return fully lowered GIMPLE, or it can return GENERIC trees and let the
  main gimplifier lower them the rest of the way; this is often simpler.
  GIMPLE that is not fully lowered is known as "High GIMPLE" and consists
! of the IL before the pass `pass_lower_cf'.  High GIMPLE contains some
! container statements like lexical scopes (represented by `GIMPLE_BIND')
! and nested expressions (e.g., `GIMPLE_TRY'), while "Low GIMPLE" exposes
! all of the implicit jumps for control and exception expressions
! directly in the IL and EH region trees.
  
   The C and C++ front ends currently convert directly from front end
  trees to GIMPLE, and hand that off to the back end rather than first
  converting to GENERIC.  Their gimplifier hooks know about all the
! `_STMT' nodes and how to convert them to GENERIC forms.  There was some
  work done on a genericization pass which would run first, but the
! existence of `STMT_EXPR' meant that in order to convert all of the C
  statements into GENERIC equivalents would involve walking the entire
  tree anyway, so it was simpler to lower all the way.  This might change
  in the future if someone writes an optimization pass which would work
  better with higher-level trees, but currently the optimizers all expect
  GIMPLE.
  
!  You can request to dump a C-like representation of the GIMPLE form
! with the flag `-fdump-tree-gimple'.
  
  * Menu:
  
--- 10619,10680 ----
  *********
  
  GIMPLE is a three-address representation derived from GENERIC by
! breaking down GENERIC expressions into tuples of no more than 3 operands
! (with some exceptions like function calls).  GIMPLE was heavily
! influenced by the SIMPLE IL used by the McCAT compiler project at McGill
! University, though we have made some different choices.  For one thing,
! SIMPLE doesn't support 'goto'.
  
   Temporaries are introduced to hold intermediate values needed to
! compute complex expressions.  Additionally, all the control structures
  used in GENERIC are lowered into conditional jumps, lexical scopes are
  removed and exception regions are converted into an on the side
  exception region tree.
  
   The compiler pass which converts GENERIC into GIMPLE is referred to as
! the 'gimplifier'.  The gimplifier works recursively, generating GIMPLE
  tuples out of the original GENERIC expressions.
  
   One of the early implementation strategies used for the GIMPLE
  representation was to use the same internal data structures used by
! front ends to represent parse trees.  This simplified implementation
  because we could leverage existing functionality and interfaces.
  However, GIMPLE is a much more restrictive representation than abstract
  syntax trees (AST), therefore it does not require the full structural
  complexity provided by the main tree data structure.
  
   The GENERIC representation of a function is stored in the
! 'DECL_SAVED_TREE' field of the associated 'FUNCTION_DECL' tree node.  It
! is converted to GIMPLE by a call to 'gimplify_function_tree'.
  
   If a front end wants to include language-specific tree codes in the
  tree representation which it provides to the back end, it must provide a
! definition of 'LANG_HOOKS_GIMPLIFY_EXPR' which knows how to convert the
! front end trees to GIMPLE.  Usually such a hook will involve much of the
! same code for expanding front end trees to RTL.  This function can
  return fully lowered GIMPLE, or it can return GENERIC trees and let the
  main gimplifier lower them the rest of the way; this is often simpler.
  GIMPLE that is not fully lowered is known as "High GIMPLE" and consists
! of the IL before the pass 'pass_lower_cf'.  High GIMPLE contains some
! container statements like lexical scopes (represented by 'GIMPLE_BIND')
! and nested expressions (e.g., 'GIMPLE_TRY'), while "Low GIMPLE" exposes
! all of the implicit jumps for control and exception expressions directly
! in the IL and EH region trees.
  
   The C and C++ front ends currently convert directly from front end
  trees to GIMPLE, and hand that off to the back end rather than first
  converting to GENERIC.  Their gimplifier hooks know about all the
! '_STMT' nodes and how to convert them to GENERIC forms.  There was some
  work done on a genericization pass which would run first, but the
! existence of 'STMT_EXPR' meant that in order to convert all of the C
  statements into GENERIC equivalents would involve walking the entire
  tree anyway, so it was simpler to lower all the way.  This might change
  in the future if someone writes an optimization pass which would work
  better with higher-level trees, but currently the optimizers all expect
  GIMPLE.
  
!  You can request to dump a C-like representation of the GIMPLE form with
! the flag '-fdump-tree-gimple'.
  
  * Menu:
  
*************** File: gccint.info,  Node: Tuple represen
*** 10833,11000 ****
  11.1 Tuple representation
  =========================
  
! GIMPLE instructions are tuples of variable size divided in two groups:
! a header describing the instruction and its locations, and a variable
! length body with all the operands. Tuples are organized into a
  hierarchy with 3 main classes of tuples.
  
! 11.1.1 `gimple' (gsbase)
  ------------------------
  
  This is the root of the hierarchy, it holds basic information needed by
! most GIMPLE statements. There are some fields that may not be relevant
  to every GIMPLE statement, but those were moved into the base structure
  to take advantage of holes left by other fields (thus making the
  structure more compact).  The structure takes 4 words (32 bytes) on 64
  bit hosts:
  
  Field                   Size (bits)
! `code'                  8
! `subcode'               16
! `no_warning'            1
! `visited'               1
! `nontemporal_move'      1
! `plf'                   2
! `modified'              1
! `has_volatile_ops'      1
! `references_memory_p'   1
! `uid'                   32
! `location'              32
! `num_ops'               32
! `bb'                    64
! `block'                 63
  Total size              32 bytes
  
!    * `code' Main identifier for a GIMPLE instruction.
  
!    * `subcode' Used to distinguish different variants of the same basic
!      instruction or provide flags applicable to a given code. The
!      `subcode' flags field has different uses depending on the code of
       the instruction, but mostly it distinguishes instructions of the
!      same family. The most prominent use of this field is in
       assignments, where subcode indicates the operation done on the RHS
!      of the assignment. For example, a = b + c is encoded as
!      `GIMPLE_ASSIGN <PLUS_EXPR, a, b, c>'.
  
!    * `no_warning' Bitflag to indicate whether a warning has already
!      been issued on this statement.
  
!    * `visited' General purpose "visited" marker. Set and cleared by
       each pass when needed.
  
!    * `nontemporal_move' Bitflag used in assignments that represent
       non-temporal moves.  Although this bitflag is only used in
       assignments, it was moved into the base to take advantage of the
       bit holes left by the previous fields.
  
!    * `plf' Pass Local Flags. This 2-bit mask can be used as general
!      purpose markers by any pass. Passes are responsible for clearing
       and setting these two flags accordingly.
  
!    * `modified' Bitflag to indicate whether the statement has been
       modified.  Used mainly by the operand scanner to determine when to
       re-scan a statement for operands.
  
!    * `has_volatile_ops' Bitflag to indicate whether this statement
       contains operands that have been marked volatile.
  
!    * `references_memory_p' Bitflag to indicate whether this statement
       contains memory references (i.e., its operands are either global
       variables, or pointer dereferences or anything that must reside in
       memory).
  
!    * `uid' This is an unsigned integer used by passes that want to
!      assign IDs to every statement. These IDs must be assigned and used
       by each pass.
  
!    * `location' This is a `location_t' identifier to specify source code
!      location for this statement. It is inherited from the front end.
  
!    * `num_ops' Number of operands that this statement has. This
       specifies the size of the operand vector embedded in the tuple.
       Only used in some tuples, but it is declared in the base tuple to
       take advantage of the 32-bit hole left by the previous fields.
  
!    * `bb' Basic block holding the instruction.
  
!    * `block' Lexical block holding this statement.  Also used for debug
       information generation.
  
! 11.1.2 `gimple_statement_with_ops'
  ----------------------------------
  
! This tuple is actually split in two: `gimple_statement_with_ops_base'
! and `gimple_statement_with_ops'. This is needed to accommodate the way
! the operand vector is allocated. The operand vector is defined to be an
! array of 1 element. So, to allocate a dynamic number of operands, the
! memory allocator (`gimple_alloc') simply allocates enough memory to
! hold the structure itself plus `N - 1' operands which run "off the end"
! of the structure. For example, to allocate space for a tuple with 3
! operands, `gimple_alloc' reserves `sizeof (struct
  gimple_statement_with_ops) + 2 * sizeof (tree)' bytes.
  
   On the other hand, several fields in this tuple need to be shared with
! the `gimple_statement_with_memory_ops' tuple. So, these common fields
! are placed in `gimple_statement_with_ops_base' which is then inherited
  from the other two tuples.
  
! `gsbase'    256
! `def_ops'   64
! `use_ops'   64
! `op'        `num_ops' * 64
! Total size  48 + 8 * `num_ops' bytes
  
!    * `gsbase' Inherited from `struct gimple'.
  
!    * `def_ops' Array of pointers into the operand array indicating all
       the slots that contain a variable written-to by the statement.
!      This array is also used for immediate use chaining. Note that it
       would be possible to not rely on this array, but the changes
       required to implement this are pretty invasive.
  
!    * `use_ops' Similar to `def_ops' but for variables read by the
       statement.
  
!    * `op' Array of trees with `num_ops' slots.
  
! 11.1.3 `gimple_statement_with_memory_ops'
  -----------------------------------------
  
! This tuple is essentially identical to `gimple_statement_with_ops',
  except that it contains 4 additional fields to hold vectors related
! memory stores and loads.  Similar to the previous case, the structure
! is split in two to accommodate for the operand vector
! (`gimple_statement_with_memory_ops_base' and
! `gimple_statement_with_memory_ops').
  
  Field        Size (bits)
! `gsbase'     256
! `def_ops'    64
! `use_ops'    64
! `vdef_ops'   64
! `vuse_ops'   64
! `stores'     64
! `loads'      64
! `op'         `num_ops' * 64
! Total size   80 + 8 * `num_ops' bytes
  
!    * `vdef_ops' Similar to `def_ops' but for `VDEF' operators. There is
!      one entry per memory symbol written by this statement. This is
       used to maintain the memory SSA use-def and def-def chains.
  
!    * `vuse_ops' Similar to `use_ops' but for `VUSE' operators. There is
!      one entry per memory symbol loaded by this statement. This is used
       to maintain the memory SSA use-def chains.
  
!    * `stores' Bitset with all the UIDs for the symbols written-to by the
!      statement.  This is different than `vdef_ops' in that all the
!      affected symbols are mentioned in this set.  If memory
!      partitioning is enabled, the `vdef_ops' vector will refer to memory
!      partitions. Furthermore, no SSA information is stored in this set.
  
!    * `loads' Similar to `stores', but for memory loads. (Note that there
!      is some amount of redundancy here, it should be possible to reduce
!      memory utilization further by removing these sets).
  
   All the other tuples are defined in terms of these three basic ones.
  Each tuple will add some fields.
--- 10697,10865 ----
  11.1 Tuple representation
  =========================
  
! GIMPLE instructions are tuples of variable size divided in two groups: a
! header describing the instruction and its locations, and a variable
! length body with all the operands.  Tuples are organized into a
  hierarchy with 3 main classes of tuples.
  
! 11.1.1 'gimple' (gsbase)
  ------------------------
  
  This is the root of the hierarchy, it holds basic information needed by
! most GIMPLE statements.  There are some fields that may not be relevant
  to every GIMPLE statement, but those were moved into the base structure
  to take advantage of holes left by other fields (thus making the
  structure more compact).  The structure takes 4 words (32 bytes) on 64
  bit hosts:
  
  Field                   Size (bits)
! 'code'                  8
! 'subcode'               16
! 'no_warning'            1
! 'visited'               1
! 'nontemporal_move'      1
! 'plf'                   2
! 'modified'              1
! 'has_volatile_ops'      1
! 'references_memory_p'   1
! 'uid'                   32
! 'location'              32
! 'num_ops'               32
! 'bb'                    64
! 'block'                 63
  Total size              32 bytes
  
!    * 'code' Main identifier for a GIMPLE instruction.
  
!    * 'subcode' Used to distinguish different variants of the same basic
!      instruction or provide flags applicable to a given code.  The
!      'subcode' flags field has different uses depending on the code of
       the instruction, but mostly it distinguishes instructions of the
!      same family.  The most prominent use of this field is in
       assignments, where subcode indicates the operation done on the RHS
!      of the assignment.  For example, a = b + c is encoded as
!      'GIMPLE_ASSIGN <PLUS_EXPR, a, b, c>'.
  
!    * 'no_warning' Bitflag to indicate whether a warning has already been
!      issued on this statement.
  
!    * 'visited' General purpose "visited" marker.  Set and cleared by
       each pass when needed.
  
!    * 'nontemporal_move' Bitflag used in assignments that represent
       non-temporal moves.  Although this bitflag is only used in
       assignments, it was moved into the base to take advantage of the
       bit holes left by the previous fields.
  
!    * 'plf' Pass Local Flags.  This 2-bit mask can be used as general
!      purpose markers by any pass.  Passes are responsible for clearing
       and setting these two flags accordingly.
  
!    * 'modified' Bitflag to indicate whether the statement has been
       modified.  Used mainly by the operand scanner to determine when to
       re-scan a statement for operands.
  
!    * 'has_volatile_ops' Bitflag to indicate whether this statement
       contains operands that have been marked volatile.
  
!    * 'references_memory_p' Bitflag to indicate whether this statement
       contains memory references (i.e., its operands are either global
       variables, or pointer dereferences or anything that must reside in
       memory).
  
!    * 'uid' This is an unsigned integer used by passes that want to
!      assign IDs to every statement.  These IDs must be assigned and used
       by each pass.
  
!    * 'location' This is a 'location_t' identifier to specify source code
!      location for this statement.  It is inherited from the front end.
  
!    * 'num_ops' Number of operands that this statement has.  This
       specifies the size of the operand vector embedded in the tuple.
       Only used in some tuples, but it is declared in the base tuple to
       take advantage of the 32-bit hole left by the previous fields.
  
!    * 'bb' Basic block holding the instruction.
  
!    * 'block' Lexical block holding this statement.  Also used for debug
       information generation.
  
! 11.1.2 'gimple_statement_with_ops'
  ----------------------------------
  
! This tuple is actually split in two: 'gimple_statement_with_ops_base'
! and 'gimple_statement_with_ops'.  This is needed to accommodate the way
! the operand vector is allocated.  The operand vector is defined to be an
! array of 1 element.  So, to allocate a dynamic number of operands, the
! memory allocator ('gimple_alloc') simply allocates enough memory to hold
! the structure itself plus 'N - 1' operands which run "off the end" of
! the structure.  For example, to allocate space for a tuple with 3
! operands, 'gimple_alloc' reserves 'sizeof (struct
  gimple_statement_with_ops) + 2 * sizeof (tree)' bytes.
  
   On the other hand, several fields in this tuple need to be shared with
! the 'gimple_statement_with_memory_ops' tuple.  So, these common fields
! are placed in 'gimple_statement_with_ops_base' which is then inherited
  from the other two tuples.
  
! 'gsbase'    256
! 'def_ops'   64
! 'use_ops'   64
! 'op'        'num_ops' * 64
! Total       48 + 8 * 'num_ops' bytes
! size
  
!    * 'gsbase' Inherited from 'struct gimple'.
  
!    * 'def_ops' Array of pointers into the operand array indicating all
       the slots that contain a variable written-to by the statement.
!      This array is also used for immediate use chaining.  Note that it
       would be possible to not rely on this array, but the changes
       required to implement this are pretty invasive.
  
!    * 'use_ops' Similar to 'def_ops' but for variables read by the
       statement.
  
!    * 'op' Array of trees with 'num_ops' slots.
  
! 11.1.3 'gimple_statement_with_memory_ops'
  -----------------------------------------
  
! This tuple is essentially identical to 'gimple_statement_with_ops',
  except that it contains 4 additional fields to hold vectors related
! memory stores and loads.  Similar to the previous case, the structure is
! split in two to accommodate for the operand vector
! ('gimple_statement_with_memory_ops_base' and
! 'gimple_statement_with_memory_ops').
  
  Field        Size (bits)
! 'gsbase'     256
! 'def_ops'    64
! 'use_ops'    64
! 'vdef_ops'   64
! 'vuse_ops'   64
! 'stores'     64
! 'loads'      64
! 'op'         'num_ops' * 64
! Total size   80 + 8 * 'num_ops' bytes
  
!    * 'vdef_ops' Similar to 'def_ops' but for 'VDEF' operators.  There is
!      one entry per memory symbol written by this statement.  This is
       used to maintain the memory SSA use-def and def-def chains.
  
!    * 'vuse_ops' Similar to 'use_ops' but for 'VUSE' operators.  There is
!      one entry per memory symbol loaded by this statement.  This is used
       to maintain the memory SSA use-def chains.
  
!    * 'stores' Bitset with all the UIDs for the symbols written-to by the
!      statement.  This is different than 'vdef_ops' in that all the
!      affected symbols are mentioned in this set.  If memory partitioning
!      is enabled, the 'vdef_ops' vector will refer to memory partitions.
!      Furthermore, no SSA information is stored in this set.
  
!    * 'loads' Similar to 'stores', but for memory loads.  (Note that
!      there is some amount of redundancy here, it should be possible to
!      reduce memory utilization further by removing these sets).
  
   All the other tuples are defined in terms of these three basic ones.
  Each tuple will add some fields.
*************** File: gccint.info,  Node: Class hierarch
*** 11006,11013 ****
  =========================================
  
  The following diagram shows the C++ inheritance hierarchy of statement
! kinds, along with their relationships to `GSS_' values (layouts) and
! `GIMPLE_' values (codes):
  
          gimple
            |    layout: GSS_BASE
--- 10871,10878 ----
  =========================================
  
  The following diagram shows the C++ inheritance hierarchy of statement
! kinds, along with their relationships to 'GSS_' values (layouts) and
! 'GIMPLE_' values (codes):
  
          gimple
            |    layout: GSS_BASE
*************** File: gccint.info,  Node: GIMPLE instruc
*** 11151,11185 ****
  The following table briefly describes the GIMPLE instruction set.
  
  Instruction                    High GIMPLE   Low GIMPLE
! `GIMPLE_ASM'                   x             x
! `GIMPLE_ASSIGN'                x             x
! `GIMPLE_BIND'                  x             
! `GIMPLE_CALL'                  x             x
! `GIMPLE_CATCH'                 x             
! `GIMPLE_COND'                  x             x
! `GIMPLE_DEBUG'                 x             x
! `GIMPLE_EH_FILTER'             x             
! `GIMPLE_GOTO'                  x             x
! `GIMPLE_LABEL'                 x             x
! `GIMPLE_NOP'                   x             x
! `GIMPLE_OMP_ATOMIC_LOAD'       x             x
! `GIMPLE_OMP_ATOMIC_STORE'      x             x
! `GIMPLE_OMP_CONTINUE'          x             x
! `GIMPLE_OMP_CRITICAL'          x             x
! `GIMPLE_OMP_FOR'               x             x
! `GIMPLE_OMP_MASTER'            x             x
! `GIMPLE_OMP_ORDERED'           x             x
! `GIMPLE_OMP_PARALLEL'          x             x
! `GIMPLE_OMP_RETURN'            x             x
! `GIMPLE_OMP_SECTION'           x             x
! `GIMPLE_OMP_SECTIONS'          x             x
! `GIMPLE_OMP_SECTIONS_SWITCH'   x             x
! `GIMPLE_OMP_SINGLE'            x             x
! `GIMPLE_PHI'                                 x
! `GIMPLE_RESX'                                x
! `GIMPLE_RETURN'                x             x
! `GIMPLE_SWITCH'                x             x
! `GIMPLE_TRY'                   x             
  
  
  File: gccint.info,  Node: GIMPLE Exception Handling,  Next: Temporaries,  Prev: GIMPLE instruction set,  Up: GIMPLE
--- 11016,11050 ----
  The following table briefly describes the GIMPLE instruction set.
  
  Instruction                    High GIMPLE   Low GIMPLE
! 'GIMPLE_ASM'                   x             x
! 'GIMPLE_ASSIGN'                x             x
! 'GIMPLE_BIND'                  x
! 'GIMPLE_CALL'                  x             x
! 'GIMPLE_CATCH'                 x
! 'GIMPLE_COND'                  x             x
! 'GIMPLE_DEBUG'                 x             x
! 'GIMPLE_EH_FILTER'             x
! 'GIMPLE_GOTO'                  x             x
! 'GIMPLE_LABEL'                 x             x
! 'GIMPLE_NOP'                   x             x
! 'GIMPLE_OMP_ATOMIC_LOAD'       x             x
! 'GIMPLE_OMP_ATOMIC_STORE'      x             x
! 'GIMPLE_OMP_CONTINUE'          x             x
! 'GIMPLE_OMP_CRITICAL'          x             x
! 'GIMPLE_OMP_FOR'               x             x
! 'GIMPLE_OMP_MASTER'            x             x
! 'GIMPLE_OMP_ORDERED'           x             x
! 'GIMPLE_OMP_PARALLEL'          x             x
! 'GIMPLE_OMP_RETURN'            x             x
! 'GIMPLE_OMP_SECTION'           x             x
! 'GIMPLE_OMP_SECTIONS'          x             x
! 'GIMPLE_OMP_SECTIONS_SWITCH'   x             x
! 'GIMPLE_OMP_SINGLE'            x             x
! 'GIMPLE_PHI'                                 x
! 'GIMPLE_RESX'                                x
! 'GIMPLE_RETURN'                x             x
! 'GIMPLE_SWITCH'                x             x
! 'GIMPLE_TRY'                   x
  
  
  File: gccint.info,  Node: GIMPLE Exception Handling,  Next: Temporaries,  Prev: GIMPLE instruction set,  Up: GIMPLE
*************** File: gccint.info,  Node: GIMPLE Excepti
*** 11188,11226 ****
  =======================
  
  Other exception handling constructs are represented using
! `GIMPLE_TRY_CATCH'.  `GIMPLE_TRY_CATCH' has two operands.  The first
  operand is a sequence of statements to execute.  If executing these
  statements does not throw an exception, then the second operand is
  ignored.  Otherwise, if an exception is thrown, then the second operand
! of the `GIMPLE_TRY_CATCH' is checked.  The second operand may have the
  following forms:
  
    1. A sequence of statements to execute.  When an exception occurs,
       these statements are executed, and then the exception is rethrown.
  
!   2. A sequence of `GIMPLE_CATCH' statements.  Each `GIMPLE_CATCH' has
!      a list of applicable exception types and handler code.  If the
!      thrown exception matches one of the caught types, the associated
!      handler code is executed.  If the handler code falls off the
!      bottom, execution continues after the original `GIMPLE_TRY_CATCH'.
  
!   3. A `GIMPLE_EH_FILTER' statement.  This has a list of permitted
!      exception types, and code to handle a match failure.  If the
!      thrown exception does not match one of the allowed types, the
!      associated match failure code is executed.  If the thrown exception
!      does match, it continues unwinding the stack looking for the next
       handler.
  
- 
   Currently throwing an exception is not directly represented in GIMPLE,
  since it is implemented by calling a function.  At some point in the
  future we will want to add some way to express that the call will throw
  an exception of a known type.
  
   Just before running the optimizers, the compiler lowers the high-level
! EH constructs above into a set of `goto's, magic labels, and EH
! regions.  Continuing to unwind at the end of a cleanup is represented
! with a `GIMPLE_RESX'.
  
  
  File: gccint.info,  Node: Temporaries,  Next: Operands,  Prev: GIMPLE Exception Handling,  Up: GIMPLE
--- 11053,11090 ----
  =======================
  
  Other exception handling constructs are represented using
! 'GIMPLE_TRY_CATCH'.  'GIMPLE_TRY_CATCH' has two operands.  The first
  operand is a sequence of statements to execute.  If executing these
  statements does not throw an exception, then the second operand is
  ignored.  Otherwise, if an exception is thrown, then the second operand
! of the 'GIMPLE_TRY_CATCH' is checked.  The second operand may have the
  following forms:
  
    1. A sequence of statements to execute.  When an exception occurs,
       these statements are executed, and then the exception is rethrown.
  
!   2. A sequence of 'GIMPLE_CATCH' statements.  Each 'GIMPLE_CATCH' has a
!      list of applicable exception types and handler code.  If the thrown
!      exception matches one of the caught types, the associated handler
!      code is executed.  If the handler code falls off the bottom,
!      execution continues after the original 'GIMPLE_TRY_CATCH'.
  
!   3. A 'GIMPLE_EH_FILTER' statement.  This has a list of permitted
!      exception types, and code to handle a match failure.  If the thrown
!      exception does not match one of the allowed types, the associated
!      match failure code is executed.  If the thrown exception does
!      match, it continues unwinding the stack looking for the next
       handler.
  
   Currently throwing an exception is not directly represented in GIMPLE,
  since it is implemented by calling a function.  At some point in the
  future we will want to add some way to express that the call will throw
  an exception of a known type.
  
   Just before running the optimizers, the compiler lowers the high-level
! EH constructs above into a set of 'goto's, magic labels, and EH regions.
! Continuing to unwind at the end of a cleanup is represented with a
! 'GIMPLE_RESX'.
  
  
  File: gccint.info,  Node: Temporaries,  Next: Operands,  Prev: GIMPLE Exception Handling,  Up: GIMPLE
*************** File: gccint.info,  Node: Temporaries,
*** 11229,11247 ****
  ================
  
  When gimplification encounters a subexpression that is too complex, it
! creates a new temporary variable to hold the value of the
! subexpression, and adds a new statement to initialize it before the
! current statement. These special temporaries are known as `expression
! temporaries', and are allocated using `get_formal_tmp_var'.  The
! compiler tries to always evaluate identical expressions into the same
! temporary, to simplify elimination of redundant calculations.
  
!  We can only use expression temporaries when we know that it will not
! be reevaluated before its value is used, and that it will not be
! otherwise modified(1). Other temporaries can be allocated using
! `get_initialized_tmp_var' or `create_tmp_var'.
  
!  Currently, an expression like `a = b + 5' is not reduced any further.
  We tried converting it to something like
       T1 = b + 5;
       a = T1;
--- 11093,11111 ----
  ================
  
  When gimplification encounters a subexpression that is too complex, it
! creates a new temporary variable to hold the value of the subexpression,
! and adds a new statement to initialize it before the current statement.
! These special temporaries are known as 'expression temporaries', and are
! allocated using 'get_formal_tmp_var'.  The compiler tries to always
! evaluate identical expressions into the same temporary, to simplify
! elimination of redundant calculations.
  
!  We can only use expression temporaries when we know that it will not be
! reevaluated before its value is used, and that it will not be otherwise
! modified(1).  Other temporaries can be allocated using
! 'get_initialized_tmp_var' or 'create_tmp_var'.
  
!  Currently, an expression like 'a = b + 5' is not reduced any further.
  We tried converting it to something like
       T1 = b + 5;
       a = T1;
*************** value is explicitly loaded into a tempor
*** 11251,11259 ****
  the value of an expression to a memory variable goes through a
  temporary.
  
!  ---------- Footnotes ----------
  
!  (1) These restrictions are derived from those in Morgan 4.8.
  
  
  File: gccint.info,  Node: Operands,  Next: Manipulating GIMPLE statements,  Prev: Temporaries,  Up: GIMPLE
--- 11115,11123 ----
  the value of an expression to a memory variable goes through a
  temporary.
  
!    ---------- Footnotes ----------
  
!    (1) These restrictions are derived from those in Morgan 4.8.
  
  
  File: gccint.info,  Node: Operands,  Next: Manipulating GIMPLE statements,  Prev: Temporaries,  Up: GIMPLE
*************** File: gccint.info,  Node: Operands,  Nex
*** 11263,11280 ****
  
  In general, expressions in GIMPLE consist of an operation and the
  appropriate number of simple operands; these operands must either be a
! GIMPLE rvalue (`is_gimple_val'), i.e. a constant or a register
! variable.  More complex operands are factored out into temporaries, so
! that
       a = b + c + d
   becomes
       T1 = b + c;
       a = T1 + d;
  
!  The same rule holds for arguments to a `GIMPLE_CALL'.
  
   The target of an assignment is usually a variable, but can also be a
! `MEM_REF' or a compound lvalue as described below.
  
  * Menu:
  
--- 11127,11143 ----
  
  In general, expressions in GIMPLE consist of an operation and the
  appropriate number of simple operands; these operands must either be a
! GIMPLE rvalue ('is_gimple_val'), i.e. a constant or a register variable.
! More complex operands are factored out into temporaries, so that
       a = b + c + d
   becomes
       T1 = b + c;
       a = T1 + d;
  
!  The same rule holds for arguments to a 'GIMPLE_CALL'.
  
   The target of an assignment is usually a variable, but can also be a
! 'MEM_REF' or a compound lvalue as described below.
  
  * Menu:
  
*************** File: gccint.info,  Node: Compound Lvalu
*** 11299,11305 ****
  -----------------------
  
  Currently compound lvalues involving array and structure field
! references are not broken down; an expression like `a.b[2] = 42' is not
  reduced any further (though complex array subscripts are).  This
  restriction is a workaround for limitations in later optimizers; if we
  were to convert this to
--- 11162,11168 ----
  -----------------------
  
  Currently compound lvalues involving array and structure field
! references are not broken down; an expression like 'a.b[2] = 42' is not
  reduced any further (though complex array subscripts are).  This
  restriction is a workaround for limitations in later optimizers; if we
  were to convert this to
*************** were to convert this to
*** 11307,11315 ****
       T1 = &a.b;
       T1[2] = 42;
  
!  alias analysis would not remember that the reference to `T1[2]' came
! by way of `a.b', so it would think that the assignment could alias
! another member of `a'; this broke `struct-alias-1.c'.  Future optimizer
  improvements may make this limitation unnecessary.
  
  
--- 11170,11178 ----
       T1 = &a.b;
       T1[2] = 42;
  
!  alias analysis would not remember that the reference to 'T1[2]' came by
! way of 'a.b', so it would think that the assignment could alias another
! member of 'a'; this broke 'struct-alias-1.c'.  Future optimizer
  improvements may make this limitation unnecessary.
  
  
*************** File: gccint.info,  Node: Conditional Ex
*** 11318,11325 ****
  11.6.3 Conditional Expressions
  ------------------------------
  
! A C `?:' expression is converted into an `if' statement with each
! branch assigning to the same temporary.  So,
  
       a = b ? c : d;
   becomes
--- 11181,11188 ----
  11.6.3 Conditional Expressions
  ------------------------------
  
! A C '?:' expression is converted into an 'if' statement with each branch
! assigning to the same temporary.  So,
  
       a = b ? c : d;
   becomes
*************** branch assigning to the same temporary.
*** 11329,11340 ****
         T1 = d;
       a = T1;
  
!  The GIMPLE level if-conversion pass re-introduces `?:' expression, if
! appropriate. It is used to vectorize loops with conditions using vector
  conditional operations.
  
!  Note that in GIMPLE, `if' statements are represented using
! `GIMPLE_COND', as described below.
  
  
  File: gccint.info,  Node: Logical Operators,  Prev: Conditional Expressions,  Up: Operands
--- 11192,11203 ----
         T1 = d;
       a = T1;
  
!  The GIMPLE level if-conversion pass re-introduces '?:' expression, if
! appropriate.  It is used to vectorize loops with conditions using vector
  conditional operations.
  
!  Note that in GIMPLE, 'if' statements are represented using
! 'GIMPLE_COND', as described below.
  
  
  File: gccint.info,  Node: Logical Operators,  Prev: Conditional Expressions,  Up: Operands
*************** File: gccint.info,  Node: Logical Operat
*** 11342,11394 ****
  11.6.4 Logical Operators
  ------------------------
  
! Except when they appear in the condition operand of a `GIMPLE_COND',
! logical `and' and `or' operators are simplified as follows: `a = b &&
! c' becomes
  
       T1 = (bool)b;
       if (T1 == true)
         T1 = (bool)c;
       a = T1;
  
!  Note that `T1' in this example cannot be an expression temporary,
  because it has two different assignments.
  
  11.6.5 Manipulating operands
  ----------------------------
  
! All gimple operands are of type `tree'.  But only certain types of
! trees are allowed to be used as operand tuples.  Basic validation is
! controlled by the function `get_gimple_rhs_class', which given a tree
! code, returns an `enum' with the following values of type `enum
  gimple_rhs_class'
  
!    * `GIMPLE_INVALID_RHS' The tree cannot be used as a GIMPLE operand.
  
!    * `GIMPLE_TERNARY_RHS' The tree is a valid GIMPLE ternary operation.
  
!    * `GIMPLE_BINARY_RHS' The tree is a valid GIMPLE binary operation.
  
!    * `GIMPLE_UNARY_RHS' The tree is a valid GIMPLE unary operation.
  
!    * `GIMPLE_SINGLE_RHS' The tree is a single object, that cannot be
!      split into simpler operands (for instance, `SSA_NAME', `VAR_DECL',
!      `COMPONENT_REF', etc).
  
!      This operand class also acts as an escape hatch for tree nodes
!      that may be flattened out into the operand vector, but would need
!      more than two slots on the RHS.  For instance, a `COND_EXPR'
!      expression of the form `(a op b) ? x : y' could be flattened out
!      on the operand vector using 4 slots, but it would also require
!      additional processing to distinguish `c = a op b' from `c = a op b
!      ? x : y'.  Something similar occurs with `ASSERT_EXPR'.   In time,
!      these special case tree expressions should be flattened into the
!      operand vector.
  
!  For tree nodes in the categories `GIMPLE_TERNARY_RHS',
! `GIMPLE_BINARY_RHS' and `GIMPLE_UNARY_RHS', they cannot be stored
! inside tuples directly.  They first need to be flattened and separated
! into individual components.  For instance, given the GENERIC expression
  
       a = b + c
  
--- 11205,11257 ----
  11.6.4 Logical Operators
  ------------------------
  
! Except when they appear in the condition operand of a 'GIMPLE_COND',
! logical 'and' and 'or' operators are simplified as follows: 'a = b && c'
! becomes
  
       T1 = (bool)b;
       if (T1 == true)
         T1 = (bool)c;
       a = T1;
  
!  Note that 'T1' in this example cannot be an expression temporary,
  because it has two different assignments.
  
  11.6.5 Manipulating operands
  ----------------------------
  
! All gimple operands are of type 'tree'.  But only certain types of trees
! are allowed to be used as operand tuples.  Basic validation is
! controlled by the function 'get_gimple_rhs_class', which given a tree
! code, returns an 'enum' with the following values of type 'enum
  gimple_rhs_class'
  
!    * 'GIMPLE_INVALID_RHS' The tree cannot be used as a GIMPLE operand.
  
!    * 'GIMPLE_TERNARY_RHS' The tree is a valid GIMPLE ternary operation.
  
!    * 'GIMPLE_BINARY_RHS' The tree is a valid GIMPLE binary operation.
  
!    * 'GIMPLE_UNARY_RHS' The tree is a valid GIMPLE unary operation.
  
!    * 'GIMPLE_SINGLE_RHS' The tree is a single object, that cannot be
!      split into simpler operands (for instance, 'SSA_NAME', 'VAR_DECL',
!      'COMPONENT_REF', etc).
  
!      This operand class also acts as an escape hatch for tree nodes that
!      may be flattened out into the operand vector, but would need more
!      than two slots on the RHS. For instance, a 'COND_EXPR' expression
!      of the form '(a op b) ? x : y' could be flattened out on the
!      operand vector using 4 slots, but it would also require additional
!      processing to distinguish 'c = a op b' from 'c = a op b ? x : y'.
!      Something similar occurs with 'ASSERT_EXPR'.  In time, these
!      special case tree expressions should be flattened into the operand
!      vector.
  
!  For tree nodes in the categories 'GIMPLE_TERNARY_RHS',
! 'GIMPLE_BINARY_RHS' and 'GIMPLE_UNARY_RHS', they cannot be stored inside
! tuples directly.  They first need to be flattened and separated into
! individual components.  For instance, given the GENERIC expression
  
       a = b + c
  
*************** into individual components.  For instanc
*** 11396,11438 ****
  
       MODIFY_EXPR <VAR_DECL  <a>, PLUS_EXPR <VAR_DECL <b>, VAR_DECL <c>>>
  
!  In this case, the GIMPLE form for this statement is logically
! identical to its GENERIC form but in GIMPLE, the `PLUS_EXPR' on the RHS
! of the assignment is not represented as a tree, instead the two
! operands are taken out of the `PLUS_EXPR' sub-tree and flattened into
! the GIMPLE tuple as follows:
  
       GIMPLE_ASSIGN <PLUS_EXPR, VAR_DECL <a>, VAR_DECL <b>, VAR_DECL <c>>
  
  11.6.6 Operand vector allocation
  --------------------------------
  
! The operand vector is stored at the bottom of the three tuple
! structures that accept operands. This means, that depending on the code
! of a given statement, its operand vector will be at different offsets
! from the base of the structure.  To access tuple operands use the
! following accessors
  
   -- GIMPLE function: unsigned gimple_num_ops (gimple g)
       Returns the number of operands in statement G.
  
   -- GIMPLE function: tree gimple_op (gimple g, unsigned i)
!      Returns operand `I' from statement `G'.
  
   -- GIMPLE function: tree * gimple_ops (gimple g)
!      Returns a pointer into the operand vector for statement `G'.  This
!      is computed using an internal table called `gimple_ops_offset_'[].
!      This table is indexed by the gimple code of `G'.
  
!      When the compiler is built, this table is filled-in using the
!      sizes of the structures used by each statement code defined in
       gimple.def.  Since the operand vector is at the bottom of the
!      structure, for a gimple code `C' the offset is computed as sizeof
!      (struct-of `C') - sizeof (tree).
  
       This mechanism adds one memory indirection to every access when
!      using `gimple_op'(), if this becomes a bottleneck, a pass can
!      choose to memoize the result from `gimple_ops'() and use that to
       access the operands.
  
  11.6.7 Operand validation
--- 11259,11300 ----
  
       MODIFY_EXPR <VAR_DECL  <a>, PLUS_EXPR <VAR_DECL <b>, VAR_DECL <c>>>
  
!  In this case, the GIMPLE form for this statement is logically identical
! to its GENERIC form but in GIMPLE, the 'PLUS_EXPR' on the RHS of the
! assignment is not represented as a tree, instead the two operands are
! taken out of the 'PLUS_EXPR' sub-tree and flattened into the GIMPLE
! tuple as follows:
  
       GIMPLE_ASSIGN <PLUS_EXPR, VAR_DECL <a>, VAR_DECL <b>, VAR_DECL <c>>
  
  11.6.6 Operand vector allocation
  --------------------------------
  
! The operand vector is stored at the bottom of the three tuple structures
! that accept operands.  This means, that depending on the code of a given
! statement, its operand vector will be at different offsets from the base
! of the structure.  To access tuple operands use the following accessors
  
   -- GIMPLE function: unsigned gimple_num_ops (gimple g)
       Returns the number of operands in statement G.
  
   -- GIMPLE function: tree gimple_op (gimple g, unsigned i)
!      Returns operand 'I' from statement 'G'.
  
   -- GIMPLE function: tree * gimple_ops (gimple g)
!      Returns a pointer into the operand vector for statement 'G'.  This
!      is computed using an internal table called 'gimple_ops_offset_'[].
!      This table is indexed by the gimple code of 'G'.
  
!      When the compiler is built, this table is filled-in using the sizes
!      of the structures used by each statement code defined in
       gimple.def.  Since the operand vector is at the bottom of the
!      structure, for a gimple code 'C' the offset is computed as sizeof
!      (struct-of 'C') - sizeof (tree).
  
       This mechanism adds one memory indirection to every access when
!      using 'gimple_op'(), if this becomes a bottleneck, a pass can
!      choose to memoize the result from 'gimple_ops'() and use that to
       access the operands.
  
  11.6.7 Operand validation
*************** following accessors
*** 11440,11506 ****
  
  When adding a new operand to a gimple statement, the operand will be
  validated according to what each tuple accepts in its operand vector.
! These predicates are called by the `gimple_NAME_set_...()'.  Each tuple
  will use one of the following predicates (Note, this list is not
  exhaustive):
  
   -- GIMPLE function: bool is_gimple_val (tree t)
       Returns true if t is a "GIMPLE value", which are all the
       non-addressable stack variables (variables for which
!      `is_gimple_reg' returns true) and constants (expressions for which
!      `is_gimple_min_invariant' returns true).
  
   -- GIMPLE function: bool is_gimple_addressable (tree t)
!      Returns true if t is a symbol or memory reference whose address
!      can be taken.
  
   -- GIMPLE function: bool is_gimple_asm_val (tree t)
!      Similar to `is_gimple_val' but it also accepts hard registers.
  
   -- GIMPLE function: bool is_gimple_call_addr (tree t)
       Return true if t is a valid expression to use as the function
!      called by a `GIMPLE_CALL'.
  
   -- GIMPLE function: bool is_gimple_mem_ref_addr (tree t)
!      Return true if t is a valid expression to use as first operand of
!      a `MEM_REF' expression.
  
   -- GIMPLE function: bool is_gimple_constant (tree t)
       Return true if t is a valid gimple constant.
  
   -- GIMPLE function: bool is_gimple_min_invariant (tree t)
       Return true if t is a valid minimal invariant.  This is different
!      from constants, in that the specific value of t may not be known
!      at compile time, but it is known that it doesn't change (e.g., the
       address of a function local variable).
  
   -- GIMPLE function: bool is_gimple_ip_invariant (tree t)
       Return true if t is an interprocedural invariant.  This means that
!      t is a valid invariant in all functions (e.g. it can be an address
       of a global variable but not of a local one).
  
   -- GIMPLE function: bool is_gimple_ip_invariant_address (tree t)
!      Return true if t is an `ADDR_EXPR' that does not change once the
       program is running (and which is valid in all functions).
  
  11.6.8 Statement validation
  ---------------------------
  
   -- GIMPLE function: bool is_gimple_assign (gimple g)
!      Return true if the code of g is `GIMPLE_ASSIGN'.
  
   -- GIMPLE function: bool is_gimple_call (gimple g)
!      Return true if the code of g is `GIMPLE_CALL'.
  
   -- GIMPLE function: bool is_gimple_debug (gimple g)
!      Return true if the code of g is `GIMPLE_DEBUG'.
  
   -- GIMPLE function: bool gimple_assign_cast_p (const_gimple g)
!      Return true if g is a `GIMPLE_ASSIGN' that performs a type cast
       operation.
  
   -- GIMPLE function: bool gimple_debug_bind_p (gimple g)
!      Return true if g is a `GIMPLE_DEBUG' that binds the value of an
       expression to a variable.
  
   -- GIMPLE function: bool is_gimple_omp (gimple g)
--- 11302,11368 ----
  
  When adding a new operand to a gimple statement, the operand will be
  validated according to what each tuple accepts in its operand vector.
! These predicates are called by the 'gimple_NAME_set_...()'.  Each tuple
  will use one of the following predicates (Note, this list is not
  exhaustive):
  
   -- GIMPLE function: bool is_gimple_val (tree t)
       Returns true if t is a "GIMPLE value", which are all the
       non-addressable stack variables (variables for which
!      'is_gimple_reg' returns true) and constants (expressions for which
!      'is_gimple_min_invariant' returns true).
  
   -- GIMPLE function: bool is_gimple_addressable (tree t)
!      Returns true if t is a symbol or memory reference whose address can
!      be taken.
  
   -- GIMPLE function: bool is_gimple_asm_val (tree t)
!      Similar to 'is_gimple_val' but it also accepts hard registers.
  
   -- GIMPLE function: bool is_gimple_call_addr (tree t)
       Return true if t is a valid expression to use as the function
!      called by a 'GIMPLE_CALL'.
  
   -- GIMPLE function: bool is_gimple_mem_ref_addr (tree t)
!      Return true if t is a valid expression to use as first operand of a
!      'MEM_REF' expression.
  
   -- GIMPLE function: bool is_gimple_constant (tree t)
       Return true if t is a valid gimple constant.
  
   -- GIMPLE function: bool is_gimple_min_invariant (tree t)
       Return true if t is a valid minimal invariant.  This is different
!      from constants, in that the specific value of t may not be known at
!      compile time, but it is known that it doesn't change (e.g., the
       address of a function local variable).
  
   -- GIMPLE function: bool is_gimple_ip_invariant (tree t)
       Return true if t is an interprocedural invariant.  This means that
!      t is a valid invariant in all functions (e.g.  it can be an address
       of a global variable but not of a local one).
  
   -- GIMPLE function: bool is_gimple_ip_invariant_address (tree t)
!      Return true if t is an 'ADDR_EXPR' that does not change once the
       program is running (and which is valid in all functions).
  
  11.6.8 Statement validation
  ---------------------------
  
   -- GIMPLE function: bool is_gimple_assign (gimple g)
!      Return true if the code of g is 'GIMPLE_ASSIGN'.
  
   -- GIMPLE function: bool is_gimple_call (gimple g)
!      Return true if the code of g is 'GIMPLE_CALL'.
  
   -- GIMPLE function: bool is_gimple_debug (gimple g)
!      Return true if the code of g is 'GIMPLE_DEBUG'.
  
   -- GIMPLE function: bool gimple_assign_cast_p (const_gimple g)
!      Return true if g is a 'GIMPLE_ASSIGN' that performs a type cast
       operation.
  
   -- GIMPLE function: bool gimple_debug_bind_p (gimple g)
!      Return true if g is a 'GIMPLE_DEBUG' that binds the value of an
       expression to a variable.
  
   -- GIMPLE function: bool is_gimple_omp (gimple g)
*************** File: gccint.info,  Node: Manipulating G
*** 11512,11519 ****
  11.7 Manipulating GIMPLE statements
  ===================================
  
! This section documents all the functions available to handle each of
! the GIMPLE instructions.
  
  11.7.1 Common accessors
  -----------------------
--- 11374,11381 ----
  11.7 Manipulating GIMPLE statements
  ===================================
  
! This section documents all the functions available to handle each of the
! GIMPLE instructions.
  
  11.7.1 Common accessors
  -----------------------
*************** the GIMPLE instructions.
*** 11521,11659 ****
  The following are common accessors for gimple statements.
  
   -- GIMPLE function: enum gimple_code gimple_code (gimple g)
!      Return the code for statement `G'.
  
   -- GIMPLE function: basic_block gimple_bb (gimple g)
!      Return the basic block to which statement `G' belongs to.
  
   -- GIMPLE function: tree gimple_block (gimple g)
!      Return the lexical scope block holding statement `G'.
  
   -- GIMPLE function: tree gimple_expr_type (gimple stmt)
!      Return the type of the main expression computed by `STMT'. Return
!      `void_type_node' if `STMT' computes nothing. This will only return
!      something meaningful for `GIMPLE_ASSIGN', `GIMPLE_COND' and
!      `GIMPLE_CALL'.  For all other tuple codes, it will return
!      `void_type_node'.
  
   -- GIMPLE function: enum tree_code gimple_expr_code (gimple stmt)
!      Return the tree code for the expression computed by `STMT'.  This
!      is only meaningful for `GIMPLE_CALL', `GIMPLE_ASSIGN' and
!      `GIMPLE_COND'.  If `STMT' is `GIMPLE_CALL', it will return
!      `CALL_EXPR'.  For `GIMPLE_COND', it returns the code of the
!      comparison predicate.  For `GIMPLE_ASSIGN' it returns the code of
!      the operation performed by the `RHS' of the assignment.
  
   -- GIMPLE function: void gimple_set_block (gimple g, tree block)
!      Set the lexical scope block of `G' to `BLOCK'.
  
   -- GIMPLE function: location_t gimple_locus (gimple g)
!      Return locus information for statement `G'.
  
   -- GIMPLE function: void gimple_set_locus (gimple g, location_t locus)
!      Set locus information for statement `G'.
  
   -- GIMPLE function: bool gimple_locus_empty_p (gimple g)
!      Return true if `G' does not have locus information.
  
   -- GIMPLE function: bool gimple_no_warning_p (gimple stmt)
!      Return true if no warnings should be emitted for statement `STMT'.
  
   -- GIMPLE function: void gimple_set_visited (gimple stmt, bool
            visited_p)
!      Set the visited status on statement `STMT' to `VISITED_P'.
  
   -- GIMPLE function: bool gimple_visited_p (gimple stmt)
!      Return the visited status on statement `STMT'.
  
   -- GIMPLE function: void gimple_set_plf (gimple stmt, enum plf_mask
            plf, bool val_p)
!      Set pass local flag `PLF' on statement `STMT' to `VAL_P'.
  
!  -- GIMPLE function: unsigned int gimple_plf (gimple stmt, enum
!           plf_mask plf)
!      Return the value of pass local flag `PLF' on statement `STMT'.
  
   -- GIMPLE function: bool gimple_has_ops (gimple g)
!      Return true if statement `G' has register or memory operands.
  
   -- GIMPLE function: bool gimple_has_mem_ops (gimple g)
!      Return true if statement `G' has memory operands.
  
   -- GIMPLE function: unsigned gimple_num_ops (gimple g)
!      Return the number of operands for statement `G'.
  
   -- GIMPLE function: tree * gimple_ops (gimple g)
!      Return the array of operands for statement `G'.
  
   -- GIMPLE function: tree gimple_op (gimple g, unsigned i)
!      Return operand `I' for statement `G'.
  
   -- GIMPLE function: tree * gimple_op_ptr (gimple g, unsigned i)
!      Return a pointer to operand `I' for statement `G'.
  
   -- GIMPLE function: void gimple_set_op (gimple g, unsigned i, tree op)
!      Set operand `I' of statement `G' to `OP'.
  
   -- GIMPLE function: bitmap gimple_addresses_taken (gimple stmt)
       Return the set of symbols that have had their address taken by
!      `STMT'.
  
   -- GIMPLE function: struct def_optype_d * gimple_def_ops (gimple g)
!      Return the set of `DEF' operands for statement `G'.
  
   -- GIMPLE function: void gimple_set_def_ops (gimple g, struct
            def_optype_d *def)
!      Set `DEF' to be the set of `DEF' operands for statement `G'.
  
   -- GIMPLE function: struct use_optype_d * gimple_use_ops (gimple g)
!      Return the set of `USE' operands for statement `G'.
  
   -- GIMPLE function: void gimple_set_use_ops (gimple g, struct
            use_optype_d *use)
!      Set `USE' to be the set of `USE' operands for statement `G'.
  
   -- GIMPLE function: struct voptype_d * gimple_vuse_ops (gimple g)
!      Return the set of `VUSE' operands for statement `G'.
  
   -- GIMPLE function: void gimple_set_vuse_ops (gimple g, struct
            voptype_d *ops)
!      Set `OPS' to be the set of `VUSE' operands for statement `G'.
  
   -- GIMPLE function: struct voptype_d * gimple_vdef_ops (gimple g)
!      Return the set of `VDEF' operands for statement `G'.
  
   -- GIMPLE function: void gimple_set_vdef_ops (gimple g, struct
            voptype_d *ops)
!      Set `OPS' to be the set of `VDEF' operands for statement `G'.
  
   -- GIMPLE function: bitmap gimple_loaded_syms (gimple g)
!      Return the set of symbols loaded by statement `G'.  Each element of
!      the set is the `DECL_UID' of the corresponding symbol.
  
   -- GIMPLE function: bitmap gimple_stored_syms (gimple g)
!      Return the set of symbols stored by statement `G'.  Each element of
!      the set is the `DECL_UID' of the corresponding symbol.
  
   -- GIMPLE function: bool gimple_modified_p (gimple g)
!      Return true if statement `G' has operands and the modified field
       has been set.
  
   -- GIMPLE function: bool gimple_has_volatile_ops (gimple stmt)
!      Return true if statement `STMT' contains volatile operands.
  
!  -- GIMPLE function: void gimple_set_has_volatile_ops (gimple stmt,
!           bool volatilep)
!      Return true if statement `STMT' contains volatile operands.
  
   -- GIMPLE function: void update_stmt (gimple s)
!      Mark statement `S' as modified, and update it.
  
   -- GIMPLE function: void update_stmt_if_modified (gimple s)
!      Update statement `S' if it has been marked modified.
  
   -- GIMPLE function: gimple gimple_copy (gimple stmt)
!      Return a deep copy of statement `STMT'.
  
  
  File: gccint.info,  Node: Tuple specific accessors,  Next: GIMPLE sequences,  Prev: Manipulating GIMPLE statements,  Up: GIMPLE
--- 11383,11521 ----
  The following are common accessors for gimple statements.
  
   -- GIMPLE function: enum gimple_code gimple_code (gimple g)
!      Return the code for statement 'G'.
  
   -- GIMPLE function: basic_block gimple_bb (gimple g)
!      Return the basic block to which statement 'G' belongs to.
  
   -- GIMPLE function: tree gimple_block (gimple g)
!      Return the lexical scope block holding statement 'G'.
  
   -- GIMPLE function: tree gimple_expr_type (gimple stmt)
!      Return the type of the main expression computed by 'STMT'.  Return
!      'void_type_node' if 'STMT' computes nothing.  This will only return
!      something meaningful for 'GIMPLE_ASSIGN', 'GIMPLE_COND' and
!      'GIMPLE_CALL'.  For all other tuple codes, it will return
!      'void_type_node'.
  
   -- GIMPLE function: enum tree_code gimple_expr_code (gimple stmt)
!      Return the tree code for the expression computed by 'STMT'.  This
!      is only meaningful for 'GIMPLE_CALL', 'GIMPLE_ASSIGN' and
!      'GIMPLE_COND'.  If 'STMT' is 'GIMPLE_CALL', it will return
!      'CALL_EXPR'.  For 'GIMPLE_COND', it returns the code of the
!      comparison predicate.  For 'GIMPLE_ASSIGN' it returns the code of
!      the operation performed by the 'RHS' of the assignment.
  
   -- GIMPLE function: void gimple_set_block (gimple g, tree block)
!      Set the lexical scope block of 'G' to 'BLOCK'.
  
   -- GIMPLE function: location_t gimple_locus (gimple g)
!      Return locus information for statement 'G'.
  
   -- GIMPLE function: void gimple_set_locus (gimple g, location_t locus)
!      Set locus information for statement 'G'.
  
   -- GIMPLE function: bool gimple_locus_empty_p (gimple g)
!      Return true if 'G' does not have locus information.
  
   -- GIMPLE function: bool gimple_no_warning_p (gimple stmt)
!      Return true if no warnings should be emitted for statement 'STMT'.
  
   -- GIMPLE function: void gimple_set_visited (gimple stmt, bool
            visited_p)
!      Set the visited status on statement 'STMT' to 'VISITED_P'.
  
   -- GIMPLE function: bool gimple_visited_p (gimple stmt)
!      Return the visited status on statement 'STMT'.
  
   -- GIMPLE function: void gimple_set_plf (gimple stmt, enum plf_mask
            plf, bool val_p)
!      Set pass local flag 'PLF' on statement 'STMT' to 'VAL_P'.
  
!  -- GIMPLE function: unsigned int gimple_plf (gimple stmt, enum plf_mask
!           plf)
!      Return the value of pass local flag 'PLF' on statement 'STMT'.
  
   -- GIMPLE function: bool gimple_has_ops (gimple g)
!      Return true if statement 'G' has register or memory operands.
  
   -- GIMPLE function: bool gimple_has_mem_ops (gimple g)
!      Return true if statement 'G' has memory operands.
  
   -- GIMPLE function: unsigned gimple_num_ops (gimple g)
!      Return the number of operands for statement 'G'.
  
   -- GIMPLE function: tree * gimple_ops (gimple g)
!      Return the array of operands for statement 'G'.
  
   -- GIMPLE function: tree gimple_op (gimple g, unsigned i)
!      Return operand 'I' for statement 'G'.
  
   -- GIMPLE function: tree * gimple_op_ptr (gimple g, unsigned i)
!      Return a pointer to operand 'I' for statement 'G'.
  
   -- GIMPLE function: void gimple_set_op (gimple g, unsigned i, tree op)
!      Set operand 'I' of statement 'G' to 'OP'.
  
   -- GIMPLE function: bitmap gimple_addresses_taken (gimple stmt)
       Return the set of symbols that have had their address taken by
!      'STMT'.
  
   -- GIMPLE function: struct def_optype_d * gimple_def_ops (gimple g)
!      Return the set of 'DEF' operands for statement 'G'.
  
   -- GIMPLE function: void gimple_set_def_ops (gimple g, struct
            def_optype_d *def)
!      Set 'DEF' to be the set of 'DEF' operands for statement 'G'.
  
   -- GIMPLE function: struct use_optype_d * gimple_use_ops (gimple g)
!      Return the set of 'USE' operands for statement 'G'.
  
   -- GIMPLE function: void gimple_set_use_ops (gimple g, struct
            use_optype_d *use)
!      Set 'USE' to be the set of 'USE' operands for statement 'G'.
  
   -- GIMPLE function: struct voptype_d * gimple_vuse_ops (gimple g)
!      Return the set of 'VUSE' operands for statement 'G'.
  
   -- GIMPLE function: void gimple_set_vuse_ops (gimple g, struct
            voptype_d *ops)
!      Set 'OPS' to be the set of 'VUSE' operands for statement 'G'.
  
   -- GIMPLE function: struct voptype_d * gimple_vdef_ops (gimple g)
!      Return the set of 'VDEF' operands for statement 'G'.
  
   -- GIMPLE function: void gimple_set_vdef_ops (gimple g, struct
            voptype_d *ops)
!      Set 'OPS' to be the set of 'VDEF' operands for statement 'G'.
  
   -- GIMPLE function: bitmap gimple_loaded_syms (gimple g)
!      Return the set of symbols loaded by statement 'G'.  Each element of
!      the set is the 'DECL_UID' of the corresponding symbol.
  
   -- GIMPLE function: bitmap gimple_stored_syms (gimple g)
!      Return the set of symbols stored by statement 'G'.  Each element of
!      the set is the 'DECL_UID' of the corresponding symbol.
  
   -- GIMPLE function: bool gimple_modified_p (gimple g)
!      Return true if statement 'G' has operands and the modified field
       has been set.
  
   -- GIMPLE function: bool gimple_has_volatile_ops (gimple stmt)
!      Return true if statement 'STMT' contains volatile operands.
  
!  -- GIMPLE function: void gimple_set_has_volatile_ops (gimple stmt, bool
!           volatilep)
!      Return true if statement 'STMT' contains volatile operands.
  
   -- GIMPLE function: void update_stmt (gimple s)
!      Mark statement 'S' as modified, and update it.
  
   -- GIMPLE function: void update_stmt_if_modified (gimple s)
!      Update statement 'S' if it has been marked modified.
  
   -- GIMPLE function: gimple gimple_copy (gimple stmt)
!      Return a deep copy of statement 'STMT'.
  
  
  File: gccint.info,  Node: Tuple specific accessors,  Next: GIMPLE sequences,  Prev: Manipulating GIMPLE statements,  Up: GIMPLE
*************** File: gccint.info,  Node: Tuple specific
*** 11663,12210 ****
  
  * Menu:
  
! * `GIMPLE_ASM'::
! * `GIMPLE_ASSIGN'::
! * `GIMPLE_BIND'::
! * `GIMPLE_CALL'::
! * `GIMPLE_CATCH'::
! * `GIMPLE_COND'::
! * `GIMPLE_DEBUG'::
! * `GIMPLE_EH_FILTER'::
! * `GIMPLE_LABEL'::
! * `GIMPLE_GOTO'::
! * `GIMPLE_NOP'::
! * `GIMPLE_OMP_ATOMIC_LOAD'::
! * `GIMPLE_OMP_ATOMIC_STORE'::
! * `GIMPLE_OMP_CONTINUE'::
! * `GIMPLE_OMP_CRITICAL'::
! * `GIMPLE_OMP_FOR'::
! * `GIMPLE_OMP_MASTER'::
! * `GIMPLE_OMP_ORDERED'::
! * `GIMPLE_OMP_PARALLEL'::
! * `GIMPLE_OMP_RETURN'::
! * `GIMPLE_OMP_SECTION'::
! * `GIMPLE_OMP_SECTIONS'::
! * `GIMPLE_OMP_SINGLE'::
! * `GIMPLE_PHI'::
! * `GIMPLE_RESX'::
! * `GIMPLE_RETURN'::
! * `GIMPLE_SWITCH'::
! * `GIMPLE_TRY'::
! * `GIMPLE_WITH_CLEANUP_EXPR'::
  
  
! File: gccint.info,  Node: `GIMPLE_ASM',  Next: `GIMPLE_ASSIGN',  Up: Tuple specific accessors
  
! 11.8.1 `GIMPLE_ASM'
  -------------------
  
   -- GIMPLE function: gasm *gimple_build_asm_vec ( const char *string,
!           vec<tree, va_gc> *inputs, vec<tree, va_gc> *outputs,
!           vec<tree, va_gc> *clobbers, vec<tree, va_gc> *labels)
!      Build a `GIMPLE_ASM' statement.  This statement is used for
!      building in-line assembly constructs.  `STRING' is the assembly
!      code.  `INPUTS', `OUTPUTS', `CLOBBERS'  and `LABELS' are the
!      inputs, outputs, clobbered registers and labels.
  
   -- GIMPLE function: unsigned gimple_asm_ninputs (const gasm *g)
!      Return the number of input operands for `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: unsigned gimple_asm_noutputs (const gasm *g)
!      Return the number of output operands for `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: unsigned gimple_asm_nclobbers (const gasm *g)
!      Return the number of clobber operands for `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: tree gimple_asm_input_op (const gasm *g, unsigned
            index)
!      Return input operand `INDEX' of `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: void gimple_asm_set_input_op (gasm *g, unsigned
            index, tree in_op)
!      Set `IN_OP' to be input operand `INDEX' in `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: tree gimple_asm_output_op (const gasm *g, unsigned
            index)
!      Return output operand `INDEX' of `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: void gimple_asm_set_output_op (gasm *g, unsigned
            index, tree out_op)
!      Set `OUT_OP' to be output operand `INDEX' in `GIMPLE_ASM' `G'.
  
!  -- GIMPLE function: tree gimple_asm_clobber_op (const gasm *g,
!           unsigned index)
!      Return clobber operand `INDEX' of `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: void gimple_asm_set_clobber_op (gasm *g, unsigned
            index, tree clobber_op)
!      Set `CLOBBER_OP' to be clobber operand `INDEX' in `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: const char * gimple_asm_string (const gasm *g)
       Return the string representing the assembly instruction in
!      `GIMPLE_ASM' `G'.
  
   -- GIMPLE function: bool gimple_asm_volatile_p (const gasm *g)
!      Return true if `G' is an asm statement marked volatile.
  
   -- GIMPLE function: void gimple_asm_set_volatile (gasm *g, bool
            volatile_p)
!      Mark asm statement `G' as volatile or non-volatile based on
!      `VOLATILE_P'.
  
  
! File: gccint.info,  Node: `GIMPLE_ASSIGN',  Next: `GIMPLE_BIND',  Prev: `GIMPLE_ASM',  Up: Tuple specific accessors
  
! 11.8.2 `GIMPLE_ASSIGN'
  ----------------------
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, tree rhs)
!      Build a `GIMPLE_ASSIGN' statement.  The left-hand side is an lvalue
!      passed in lhs.  The right-hand side can be either a unary or
!      binary tree expression.  The expression tree rhs will be flattened
!      and its operands assigned to the corresponding operand slots in
!      the new statement.  This function is useful when you already have
!      a tree expression that you want to convert into a tuple.  However,
!      try to avoid building expression trees for the sole purpose of
!      calling this function.  If you already have the operands in
!      separate trees, it is better to use `gimple_build_assign' with
!      `enum tree_code' argument and separate arguments for each operand.
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, enum
            tree_code subcode, tree op1, tree op2, tree op3)
!      This function is similar to two operand `gimple_build_assign', but
!      is used to build a `GIMPLE_ASSIGN' statement when the operands of
       the right-hand side of the assignment are already split into
       different operands.
  
       The left-hand side is an lvalue passed in lhs.  Subcode is the
!      `tree_code' for the right-hand side of the assignment.  Op1, op2
       and op3 are the operands.
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, enum
            tree_code subcode, tree op1, tree op2)
!      Like the above 5 operand `gimple_build_assign', but with the last
!      argument `NULL' - this overload should not be used for
!      `GIMPLE_TERNARY_RHS' assignments.
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, enum
            tree_code subcode, tree op1)
!      Like the above 4 operand `gimple_build_assign', but with the last
!      argument `NULL' - this overload should be used only for
!      `GIMPLE_UNARY_RHS' and `GIMPLE_SINGLE_RHS' assignments.
  
   -- GIMPLE function: gimple gimplify_assign (tree dst, tree src,
            gimple_seq *seq_p)
!      Build a new `GIMPLE_ASSIGN' tuple and append it to the end of
!      `*SEQ_P'.
  
!  `DST'/`SRC' are the destination and source respectively.  You can pass
! ungimplified trees in `DST' or `SRC', in which case they will be
  converted to a gimple operand if necessary.
  
!  This function returns the newly created `GIMPLE_ASSIGN' tuple.
  
   -- GIMPLE function: enum tree_code gimple_assign_rhs_code (gimple g)
!      Return the code of the expression computed on the `RHS' of
!      assignment statement `G'.
  
   -- GIMPLE function: enum gimple_rhs_class gimple_assign_rhs_class
            (gimple g)
!      Return the gimple rhs class of the code for the expression
!      computed on the rhs of assignment statement `G'.  This will never
!      return `GIMPLE_INVALID_RHS'.
  
   -- GIMPLE function: tree gimple_assign_lhs (gimple g)
!      Return the `LHS' of assignment statement `G'.
  
   -- GIMPLE function: tree * gimple_assign_lhs_ptr (gimple g)
!      Return a pointer to the `LHS' of assignment statement `G'.
  
   -- GIMPLE function: tree gimple_assign_rhs1 (gimple g)
!      Return the first operand on the `RHS' of assignment statement `G'.
  
   -- GIMPLE function: tree * gimple_assign_rhs1_ptr (gimple g)
!      Return the address of the first operand on the `RHS' of assignment
!      statement `G'.
  
   -- GIMPLE function: tree gimple_assign_rhs2 (gimple g)
!      Return the second operand on the `RHS' of assignment statement `G'.
  
   -- GIMPLE function: tree * gimple_assign_rhs2_ptr (gimple g)
!      Return the address of the second operand on the `RHS' of assignment
!      statement `G'.
  
   -- GIMPLE function: tree gimple_assign_rhs3 (gimple g)
!      Return the third operand on the `RHS' of assignment statement `G'.
  
   -- GIMPLE function: tree * gimple_assign_rhs3_ptr (gimple g)
!      Return the address of the third operand on the `RHS' of assignment
!      statement `G'.
  
   -- GIMPLE function: void gimple_assign_set_lhs (gimple g, tree lhs)
!      Set `LHS' to be the `LHS' operand of assignment statement `G'.
  
   -- GIMPLE function: void gimple_assign_set_rhs1 (gimple g, tree rhs)
!      Set `RHS' to be the first operand on the `RHS' of assignment
!      statement `G'.
  
   -- GIMPLE function: void gimple_assign_set_rhs2 (gimple g, tree rhs)
!      Set `RHS' to be the second operand on the `RHS' of assignment
!      statement `G'.
  
   -- GIMPLE function: void gimple_assign_set_rhs3 (gimple g, tree rhs)
!      Set `RHS' to be the third operand on the `RHS' of assignment
!      statement `G'.
  
   -- GIMPLE function: bool gimple_assign_cast_p (const_gimple s)
!      Return true if `S' is a type-cast assignment.
  
  
! File: gccint.info,  Node: `GIMPLE_BIND',  Next: `GIMPLE_CALL',  Prev: `GIMPLE_ASSIGN',  Up: Tuple specific accessors
  
! 11.8.3 `GIMPLE_BIND'
  --------------------
  
   -- GIMPLE function: gbind *gimple_build_bind (tree vars, gimple_seq
            body)
!      Build a `GIMPLE_BIND' statement with a list of variables in `VARS'
!      and a body of statements in sequence `BODY'.
  
   -- GIMPLE function: tree gimple_bind_vars (const gbind *g)
!      Return the variables declared in the `GIMPLE_BIND' statement `G'.
  
   -- GIMPLE function: void gimple_bind_set_vars (gbind *g, tree vars)
!      Set `VARS' to be the set of variables declared in the `GIMPLE_BIND'
!      statement `G'.
  
   -- GIMPLE function: void gimple_bind_append_vars (gbind *g, tree vars)
!      Append `VARS' to the set of variables declared in the `GIMPLE_BIND'
!      statement `G'.
  
   -- GIMPLE function: gimple_seq gimple_bind_body (gbind *g)
!      Return the GIMPLE sequence contained in the `GIMPLE_BIND' statement
!      `G'.
  
   -- GIMPLE function: void gimple_bind_set_body (gbind *g, gimple_seq
            seq)
!      Set `SEQ' to be sequence contained in the `GIMPLE_BIND' statement
!      `G'.
  
   -- GIMPLE function: void gimple_bind_add_stmt (gbind *gs, gimple stmt)
!      Append a statement to the end of a `GIMPLE_BIND''s body.
  
   -- GIMPLE function: void gimple_bind_add_seq (gbind *gs, gimple_seq
            seq)
!      Append a sequence of statements to the end of a `GIMPLE_BIND''s
       body.
  
   -- GIMPLE function: tree gimple_bind_block (const gbind *g)
!      Return the `TREE_BLOCK' node associated with `GIMPLE_BIND'
!      statement `G'. This is analogous to the `BIND_EXPR_BLOCK' field in
       trees.
  
   -- GIMPLE function: void gimple_bind_set_block (gbind *g, tree block)
!      Set `BLOCK' to be the `TREE_BLOCK' node associated with
!      `GIMPLE_BIND' statement `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_CALL',  Next: `GIMPLE_CATCH',  Prev: `GIMPLE_BIND',  Up: Tuple specific accessors
  
! 11.8.4 `GIMPLE_CALL'
  --------------------
  
   -- GIMPLE function: gcall *gimple_build_call (tree fn, unsigned nargs,
            ...)
!      Build a `GIMPLE_CALL' statement to function `FN'.  The argument
!      `FN' must be either a `FUNCTION_DECL' or a gimple call address as
!      determined by `is_gimple_call_addr'.  `NARGS' are the number of
!      arguments.  The rest of the arguments follow the argument `NARGS',
       and must be trees that are valid as rvalues in gimple (i.e., each
!      operand is validated with `is_gimple_operand').
  
   -- GIMPLE function: gcall *gimple_build_call_from_tree (tree call_expr)
!      Build a `GIMPLE_CALL' from a `CALL_EXPR' node.  The arguments and
       the function are taken from the expression directly.  This routine
!      assumes that `call_expr' is already in GIMPLE form.  That is, its
       operands are GIMPLE values and the function call needs no further
!      simplification.  All the call flags in `call_expr' are copied over
!      to the new `GIMPLE_CALL'.
  
!  -- GIMPLE function: gcall *gimple_build_call_vec (tree fn, `vec<tree>'
            args)
!      Identical to `gimple_build_call' but the arguments are stored in a
!      `vec<tree>'.
  
   -- GIMPLE function: tree gimple_call_lhs (gimple g)
!      Return the `LHS' of call statement `G'.
  
   -- GIMPLE function: tree * gimple_call_lhs_ptr (gimple g)
!      Return a pointer to the `LHS' of call statement `G'.
  
   -- GIMPLE function: void gimple_call_set_lhs (gimple g, tree lhs)
!      Set `LHS' to be the `LHS' operand of call statement `G'.
  
   -- GIMPLE function: tree gimple_call_fn (gimple g)
       Return the tree node representing the function called by call
!      statement `G'.
  
   -- GIMPLE function: void gimple_call_set_fn (gcall *g, tree fn)
!      Set `FN' to be the function called by call statement `G'.  This has
       to be a gimple value specifying the address of the called function.
  
   -- GIMPLE function: tree gimple_call_fndecl (gimple g)
!      If a given `GIMPLE_CALL''s callee is a `FUNCTION_DECL', return it.
!      Otherwise return `NULL'.  This function is analogous to
!      `get_callee_fndecl' in `GENERIC'.
  
   -- GIMPLE function: tree gimple_call_set_fndecl (gimple g, tree fndecl)
!      Set the called function to `FNDECL'.
  
   -- GIMPLE function: tree gimple_call_return_type (const gcall *g)
!      Return the type returned by call statement `G'.
  
   -- GIMPLE function: tree gimple_call_chain (gimple g)
!      Return the static chain for call statement `G'.
  
   -- GIMPLE function: void gimple_call_set_chain (gcall *g, tree chain)
!      Set `CHAIN' to be the static chain for call statement `G'.
  
   -- GIMPLE function: unsigned gimple_call_num_args (gimple g)
!      Return the number of arguments used by call statement `G'.
  
   -- GIMPLE function: tree gimple_call_arg (gimple g, unsigned index)
!      Return the argument at position `INDEX' for call statement `G'.
       The first argument is 0.
  
   -- GIMPLE function: tree * gimple_call_arg_ptr (gimple g, unsigned
            index)
!      Return a pointer to the argument at position `INDEX' for call
!      statement `G'.
  
!  -- GIMPLE function: void gimple_call_set_arg (gimple g, unsigned
!           index, tree arg)
!      Set `ARG' to be the argument at position `INDEX' for call statement
!      `G'.
  
   -- GIMPLE function: void gimple_call_set_tail (gcall *s)
!      Mark call statement `S' as being a tail call (i.e., a call just
!      before the exit of a function). These calls are candidate for tail
       call optimization.
  
   -- GIMPLE function: bool gimple_call_tail_p (gcall *s)
!      Return true if `GIMPLE_CALL' `S' is marked as a tail call.
  
   -- GIMPLE function: bool gimple_call_noreturn_p (gimple s)
!      Return true if `S' is a noreturn call.
  
   -- GIMPLE function: gimple gimple_call_copy_skip_args (gcall *stmt,
            bitmap args_to_skip)
!      Build a `GIMPLE_CALL' identical to `STMT' but skipping the
!      arguments in the positions marked by the set `ARGS_TO_SKIP'.
  
  
! File: gccint.info,  Node: `GIMPLE_CATCH',  Next: `GIMPLE_COND',  Prev: `GIMPLE_CALL',  Up: Tuple specific accessors
  
! 11.8.5 `GIMPLE_CATCH'
  ---------------------
  
   -- GIMPLE function: gcatch *gimple_build_catch (tree types, gimple_seq
            handler)
!      Build a `GIMPLE_CATCH' statement.  `TYPES' are the tree types this
!      catch handles.  `HANDLER' is a sequence of statements with the code
       for the handler.
  
   -- GIMPLE function: tree gimple_catch_types (const gcatch *g)
!      Return the types handled by `GIMPLE_CATCH' statement `G'.
  
   -- GIMPLE function: tree * gimple_catch_types_ptr (gcatch *g)
!      Return a pointer to the types handled by `GIMPLE_CATCH' statement
!      `G'.
  
   -- GIMPLE function: gimple_seq gimple_catch_handler (gcatch *g)
       Return the GIMPLE sequence representing the body of the handler of
!      `GIMPLE_CATCH' statement `G'.
  
   -- GIMPLE function: void gimple_catch_set_types (gcatch *g, tree t)
!      Set `T' to be the set of types handled by `GIMPLE_CATCH' `G'.
  
   -- GIMPLE function: void gimple_catch_set_handler (gcatch *g,
            gimple_seq handler)
!      Set `HANDLER' to be the body of `GIMPLE_CATCH' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_COND',  Next: `GIMPLE_DEBUG',  Prev: `GIMPLE_CATCH',  Up: Tuple specific accessors
  
! 11.8.6 `GIMPLE_COND'
  --------------------
  
   -- GIMPLE function: gcond *gimple_build_cond ( enum tree_code
            pred_code, tree lhs, tree rhs, tree t_label, tree f_label)
!      Build a `GIMPLE_COND' statement.  `A' `GIMPLE_COND' statement
!      compares `LHS' and `RHS' and if the condition in `PRED_CODE' is
!      true, jump to the label in `t_label', otherwise jump to the label
!      in `f_label'.  `PRED_CODE' are relational operator tree codes like
!      `EQ_EXPR', `LT_EXPR', `LE_EXPR', `NE_EXPR', etc.
  
!  -- GIMPLE function: gcond *gimple_build_cond_from_tree (tree cond,
!           tree t_label, tree f_label)
!      Build a `GIMPLE_COND' statement from the conditional expression
!      tree `COND'.  `T_LABEL' and `F_LABEL' are as in
!      `gimple_build_cond'.
  
   -- GIMPLE function: enum tree_code gimple_cond_code (gimple g)
       Return the code of the predicate computed by conditional statement
!      `G'.
  
!  -- GIMPLE function: void gimple_cond_set_code (gcond *g, enum
!           tree_code code)
!      Set `CODE' to be the predicate code for the conditional statement
!      `G'.
  
   -- GIMPLE function: tree gimple_cond_lhs (gimple g)
!      Return the `LHS' of the predicate computed by conditional statement
!      `G'.
  
   -- GIMPLE function: void gimple_cond_set_lhs (gcond *g, tree lhs)
!      Set `LHS' to be the `LHS' operand of the predicate computed by
!      conditional statement `G'.
  
   -- GIMPLE function: tree gimple_cond_rhs (gimple g)
!      Return the `RHS' operand of the predicate computed by conditional
!      `G'.
  
   -- GIMPLE function: void gimple_cond_set_rhs (gcond *g, tree rhs)
!      Set `RHS' to be the `RHS' operand of the predicate computed by
!      conditional statement `G'.
  
   -- GIMPLE function: tree gimple_cond_true_label (const gcond *g)
!      Return the label used by conditional statement `G' when its
       predicate evaluates to true.
  
   -- GIMPLE function: void gimple_cond_set_true_label (gcond *g, tree
            label)
!      Set `LABEL' to be the label used by conditional statement `G' when
       its predicate evaluates to true.
  
   -- GIMPLE function: void gimple_cond_set_false_label (gcond *g, tree
            label)
!      Set `LABEL' to be the label used by conditional statement `G' when
       its predicate evaluates to false.
  
   -- GIMPLE function: tree gimple_cond_false_label (const gcond *g)
!      Return the label used by conditional statement `G' when its
       predicate evaluates to false.
  
   -- GIMPLE function: void gimple_cond_make_false (gcond *g)
!      Set the conditional `COND_STMT' to be of the form 'if (1 == 0)'.
  
   -- GIMPLE function: void gimple_cond_make_true (gcond *g)
!      Set the conditional `COND_STMT' to be of the form 'if (1 == 1)'.
  
  
! File: gccint.info,  Node: `GIMPLE_DEBUG',  Next: `GIMPLE_EH_FILTER',  Prev: `GIMPLE_COND',  Up: Tuple specific accessors
  
! 11.8.7 `GIMPLE_DEBUG'
  ---------------------
  
   -- GIMPLE function: gdebug *gimple_build_debug_bind (tree var, tree
            value, gimple stmt)
!      Build a `GIMPLE_DEBUG' statement with `GIMPLE_DEBUG_BIND' of
!      `subcode'.  The effect of this statement is to tell debug
       information generation machinery that the value of user variable
!      `var' is given by `value' at that point, and to remain with that
!      value until `var' runs out of scope, a dynamically-subsequent
!      debug bind statement overrides the binding, or conflicting values
!      reach a control flow merge point.  Even if components of the
!      `value' expression change afterwards, the variable is supposed to
!      retain the same value, though not necessarily the same location.
  
!      It is expected that `var' be most often a tree for automatic user
!      variables (`VAR_DECL' or `PARM_DECL') that satisfy the
!      requirements for gimple registers, but it may also be a tree for a
!      scalarized component of a user variable (`ARRAY_REF',
!      `COMPONENT_REF'), or a debug temporary (`DEBUG_EXPR_DECL').
  
!      As for `value', it can be an arbitrary tree expression, but it is
       recommended that it be in a suitable form for a gimple assignment
!      `RHS'.  It is not expected that user variables that could appear
!      as `var' ever appear in `value', because in the latter we'd have
!      their `SSA_NAME's instead, but even if they were not in SSA form,
!      user variables appearing in `value' are to be regarded as part of
!      the executable code space, whereas those in `var' are to be
!      regarded as part of the source code space.  There is no way to
!      refer to the value bound to a user variable within a `value'
!      expression.
  
!      If `value' is `GIMPLE_DEBUG_BIND_NOVALUE', debug information
!      generation machinery is informed that the variable `var' is
       unbound, i.e., that its value is indeterminate, which sometimes
       means it is really unavailable, and other times that the compiler
       could not keep track of it.
  
!      Block and location information for the newly-created stmt are
!      taken from `stmt', if given.
  
   -- GIMPLE function: tree gimple_debug_bind_get_var (gimple stmt)
!      Return the user variable VAR that is bound at `stmt'.
  
   -- GIMPLE function: tree gimple_debug_bind_get_value (gimple stmt)
       Return the value expression that is bound to a user variable at
!      `stmt'.
  
   -- GIMPLE function: tree * gimple_debug_bind_get_value_ptr (gimple
            stmt)
       Return a pointer to the value expression that is bound to a user
!      variable at `stmt'.
  
   -- GIMPLE function: void gimple_debug_bind_set_var (gimple stmt, tree
            var)
!      Modify the user variable bound at `stmt' to VAR.
  
!  -- GIMPLE function: void gimple_debug_bind_set_value (gimple stmt,
!           tree var)
!      Modify the value bound to the user variable bound at `stmt' to
       VALUE.
  
   -- GIMPLE function: void gimple_debug_bind_reset_value (gimple stmt)
!      Modify the value bound to the user variable bound at `stmt' so
!      that the variable becomes unbound.
  
   -- GIMPLE function: bool gimple_debug_bind_has_value_p (gimple stmt)
!      Return `TRUE' if `stmt' binds a user variable to a value, and
!      `FALSE' if it unbinds the variable.
  
  
! File: gccint.info,  Node: `GIMPLE_EH_FILTER',  Next: `GIMPLE_LABEL',  Prev: `GIMPLE_DEBUG',  Up: Tuple specific accessors
  
! 11.8.8 `GIMPLE_EH_FILTER'
  -------------------------
  
   -- GIMPLE function: geh_filter *gimple_build_eh_filter (tree types,
            gimple_seq failure)
!      Build a `GIMPLE_EH_FILTER' statement.  `TYPES' are the filter's
!      types.  `FAILURE' is a sequence with the filter's failure action.
  
   -- GIMPLE function: tree gimple_eh_filter_types (gimple g)
!      Return the types handled by `GIMPLE_EH_FILTER' statement `G'.
  
   -- GIMPLE function: tree * gimple_eh_filter_types_ptr (gimple g)
!      Return a pointer to the types handled by `GIMPLE_EH_FILTER'
!      statement `G'.
  
   -- GIMPLE function: gimple_seq gimple_eh_filter_failure (gimple g)
!      Return the sequence of statement to execute when `GIMPLE_EH_FILTER'
       statement fails.
  
   -- GIMPLE function: void gimple_eh_filter_set_types (geh_filter *g,
            tree types)
!      Set `TYPES' to be the set of types handled by `GIMPLE_EH_FILTER'
!      `G'.
  
   -- GIMPLE function: void gimple_eh_filter_set_failure (geh_filter *g,
            gimple_seq failure)
!      Set `FAILURE' to be the sequence of statements to execute on
!      failure for `GIMPLE_EH_FILTER' `G'.
  
   -- GIMPLE function: tree gimple_eh_must_not_throw_fndecl ( geh_mnt
            *eh_mnt_stmt)
--- 11525,12071 ----
  
  * Menu:
  
! * GIMPLE_ASM::
! * GIMPLE_ASSIGN::
! * GIMPLE_BIND::
! * GIMPLE_CALL::
! * GIMPLE_CATCH::
! * GIMPLE_COND::
! * GIMPLE_DEBUG::
! * GIMPLE_EH_FILTER::
! * GIMPLE_LABEL::
! * GIMPLE_GOTO::
! * GIMPLE_NOP::
! * GIMPLE_OMP_ATOMIC_LOAD::
! * GIMPLE_OMP_ATOMIC_STORE::
! * GIMPLE_OMP_CONTINUE::
! * GIMPLE_OMP_CRITICAL::
! * GIMPLE_OMP_FOR::
! * GIMPLE_OMP_MASTER::
! * GIMPLE_OMP_ORDERED::
! * GIMPLE_OMP_PARALLEL::
! * GIMPLE_OMP_RETURN::
! * GIMPLE_OMP_SECTION::
! * GIMPLE_OMP_SECTIONS::
! * GIMPLE_OMP_SINGLE::
! * GIMPLE_PHI::
! * GIMPLE_RESX::
! * GIMPLE_RETURN::
! * GIMPLE_SWITCH::
! * GIMPLE_TRY::
! * GIMPLE_WITH_CLEANUP_EXPR::
  
  
! File: gccint.info,  Node: GIMPLE_ASM,  Next: GIMPLE_ASSIGN,  Up: Tuple specific accessors
  
! 11.8.1 'GIMPLE_ASM'
  -------------------
  
   -- GIMPLE function: gasm *gimple_build_asm_vec ( const char *string,
!           vec<tree, va_gc> *inputs, vec<tree, va_gc> *outputs, vec<tree,
!           va_gc> *clobbers, vec<tree, va_gc> *labels)
!      Build a 'GIMPLE_ASM' statement.  This statement is used for
!      building in-line assembly constructs.  'STRING' is the assembly
!      code.  'INPUTS', 'OUTPUTS', 'CLOBBERS' and 'LABELS' are the inputs,
!      outputs, clobbered registers and labels.
  
   -- GIMPLE function: unsigned gimple_asm_ninputs (const gasm *g)
!      Return the number of input operands for 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: unsigned gimple_asm_noutputs (const gasm *g)
!      Return the number of output operands for 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: unsigned gimple_asm_nclobbers (const gasm *g)
!      Return the number of clobber operands for 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: tree gimple_asm_input_op (const gasm *g, unsigned
            index)
!      Return input operand 'INDEX' of 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: void gimple_asm_set_input_op (gasm *g, unsigned
            index, tree in_op)
!      Set 'IN_OP' to be input operand 'INDEX' in 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: tree gimple_asm_output_op (const gasm *g, unsigned
            index)
!      Return output operand 'INDEX' of 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: void gimple_asm_set_output_op (gasm *g, unsigned
            index, tree out_op)
!      Set 'OUT_OP' to be output operand 'INDEX' in 'GIMPLE_ASM' 'G'.
  
!  -- GIMPLE function: tree gimple_asm_clobber_op (const gasm *g, unsigned
!           index)
!      Return clobber operand 'INDEX' of 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: void gimple_asm_set_clobber_op (gasm *g, unsigned
            index, tree clobber_op)
!      Set 'CLOBBER_OP' to be clobber operand 'INDEX' in 'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: const char * gimple_asm_string (const gasm *g)
       Return the string representing the assembly instruction in
!      'GIMPLE_ASM' 'G'.
  
   -- GIMPLE function: bool gimple_asm_volatile_p (const gasm *g)
!      Return true if 'G' is an asm statement marked volatile.
  
   -- GIMPLE function: void gimple_asm_set_volatile (gasm *g, bool
            volatile_p)
!      Mark asm statement 'G' as volatile or non-volatile based on
!      'VOLATILE_P'.
  
  
! File: gccint.info,  Node: GIMPLE_ASSIGN,  Next: GIMPLE_BIND,  Prev: GIMPLE_ASM,  Up: Tuple specific accessors
  
! 11.8.2 'GIMPLE_ASSIGN'
  ----------------------
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, tree rhs)
!      Build a 'GIMPLE_ASSIGN' statement.  The left-hand side is an lvalue
!      passed in lhs.  The right-hand side can be either a unary or binary
!      tree expression.  The expression tree rhs will be flattened and its
!      operands assigned to the corresponding operand slots in the new
!      statement.  This function is useful when you already have a tree
!      expression that you want to convert into a tuple.  However, try to
!      avoid building expression trees for the sole purpose of calling
!      this function.  If you already have the operands in separate trees,
!      it is better to use 'gimple_build_assign' with 'enum tree_code'
!      argument and separate arguments for each operand.
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, enum
            tree_code subcode, tree op1, tree op2, tree op3)
!      This function is similar to two operand 'gimple_build_assign', but
!      is used to build a 'GIMPLE_ASSIGN' statement when the operands of
       the right-hand side of the assignment are already split into
       different operands.
  
       The left-hand side is an lvalue passed in lhs.  Subcode is the
!      'tree_code' for the right-hand side of the assignment.  Op1, op2
       and op3 are the operands.
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, enum
            tree_code subcode, tree op1, tree op2)
!      Like the above 5 operand 'gimple_build_assign', but with the last
!      argument 'NULL' - this overload should not be used for
!      'GIMPLE_TERNARY_RHS' assignments.
  
   -- GIMPLE function: gassign *gimple_build_assign (tree lhs, enum
            tree_code subcode, tree op1)
!      Like the above 4 operand 'gimple_build_assign', but with the last
!      argument 'NULL' - this overload should be used only for
!      'GIMPLE_UNARY_RHS' and 'GIMPLE_SINGLE_RHS' assignments.
  
   -- GIMPLE function: gimple gimplify_assign (tree dst, tree src,
            gimple_seq *seq_p)
!      Build a new 'GIMPLE_ASSIGN' tuple and append it to the end of
!      '*SEQ_P'.
  
!  'DST'/'SRC' are the destination and source respectively.  You can pass
! ungimplified trees in 'DST' or 'SRC', in which case they will be
  converted to a gimple operand if necessary.
  
!  This function returns the newly created 'GIMPLE_ASSIGN' tuple.
  
   -- GIMPLE function: enum tree_code gimple_assign_rhs_code (gimple g)
!      Return the code of the expression computed on the 'RHS' of
!      assignment statement 'G'.
  
   -- GIMPLE function: enum gimple_rhs_class gimple_assign_rhs_class
            (gimple g)
!      Return the gimple rhs class of the code for the expression computed
!      on the rhs of assignment statement 'G'.  This will never return
!      'GIMPLE_INVALID_RHS'.
  
   -- GIMPLE function: tree gimple_assign_lhs (gimple g)
!      Return the 'LHS' of assignment statement 'G'.
  
   -- GIMPLE function: tree * gimple_assign_lhs_ptr (gimple g)
!      Return a pointer to the 'LHS' of assignment statement 'G'.
  
   -- GIMPLE function: tree gimple_assign_rhs1 (gimple g)
!      Return the first operand on the 'RHS' of assignment statement 'G'.
  
   -- GIMPLE function: tree * gimple_assign_rhs1_ptr (gimple g)
!      Return the address of the first operand on the 'RHS' of assignment
!      statement 'G'.
  
   -- GIMPLE function: tree gimple_assign_rhs2 (gimple g)
!      Return the second operand on the 'RHS' of assignment statement 'G'.
  
   -- GIMPLE function: tree * gimple_assign_rhs2_ptr (gimple g)
!      Return the address of the second operand on the 'RHS' of assignment
!      statement 'G'.
  
   -- GIMPLE function: tree gimple_assign_rhs3 (gimple g)
!      Return the third operand on the 'RHS' of assignment statement 'G'.
  
   -- GIMPLE function: tree * gimple_assign_rhs3_ptr (gimple g)
!      Return the address of the third operand on the 'RHS' of assignment
!      statement 'G'.
  
   -- GIMPLE function: void gimple_assign_set_lhs (gimple g, tree lhs)
!      Set 'LHS' to be the 'LHS' operand of assignment statement 'G'.
  
   -- GIMPLE function: void gimple_assign_set_rhs1 (gimple g, tree rhs)
!      Set 'RHS' to be the first operand on the 'RHS' of assignment
!      statement 'G'.
  
   -- GIMPLE function: void gimple_assign_set_rhs2 (gimple g, tree rhs)
!      Set 'RHS' to be the second operand on the 'RHS' of assignment
!      statement 'G'.
  
   -- GIMPLE function: void gimple_assign_set_rhs3 (gimple g, tree rhs)
!      Set 'RHS' to be the third operand on the 'RHS' of assignment
!      statement 'G'.
  
   -- GIMPLE function: bool gimple_assign_cast_p (const_gimple s)
!      Return true if 'S' is a type-cast assignment.
  
  
! File: gccint.info,  Node: GIMPLE_BIND,  Next: GIMPLE_CALL,  Prev: GIMPLE_ASSIGN,  Up: Tuple specific accessors
  
! 11.8.3 'GIMPLE_BIND'
  --------------------
  
   -- GIMPLE function: gbind *gimple_build_bind (tree vars, gimple_seq
            body)
!      Build a 'GIMPLE_BIND' statement with a list of variables in 'VARS'
!      and a body of statements in sequence 'BODY'.
  
   -- GIMPLE function: tree gimple_bind_vars (const gbind *g)
!      Return the variables declared in the 'GIMPLE_BIND' statement 'G'.
  
   -- GIMPLE function: void gimple_bind_set_vars (gbind *g, tree vars)
!      Set 'VARS' to be the set of variables declared in the 'GIMPLE_BIND'
!      statement 'G'.
  
   -- GIMPLE function: void gimple_bind_append_vars (gbind *g, tree vars)
!      Append 'VARS' to the set of variables declared in the 'GIMPLE_BIND'
!      statement 'G'.
  
   -- GIMPLE function: gimple_seq gimple_bind_body (gbind *g)
!      Return the GIMPLE sequence contained in the 'GIMPLE_BIND' statement
!      'G'.
  
   -- GIMPLE function: void gimple_bind_set_body (gbind *g, gimple_seq
            seq)
!      Set 'SEQ' to be sequence contained in the 'GIMPLE_BIND' statement
!      'G'.
  
   -- GIMPLE function: void gimple_bind_add_stmt (gbind *gs, gimple stmt)
!      Append a statement to the end of a 'GIMPLE_BIND''s body.
  
   -- GIMPLE function: void gimple_bind_add_seq (gbind *gs, gimple_seq
            seq)
!      Append a sequence of statements to the end of a 'GIMPLE_BIND''s
       body.
  
   -- GIMPLE function: tree gimple_bind_block (const gbind *g)
!      Return the 'TREE_BLOCK' node associated with 'GIMPLE_BIND'
!      statement 'G'.  This is analogous to the 'BIND_EXPR_BLOCK' field in
       trees.
  
   -- GIMPLE function: void gimple_bind_set_block (gbind *g, tree block)
!      Set 'BLOCK' to be the 'TREE_BLOCK' node associated with
!      'GIMPLE_BIND' statement 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_CALL,  Next: GIMPLE_CATCH,  Prev: GIMPLE_BIND,  Up: Tuple specific accessors
  
! 11.8.4 'GIMPLE_CALL'
  --------------------
  
   -- GIMPLE function: gcall *gimple_build_call (tree fn, unsigned nargs,
            ...)
!      Build a 'GIMPLE_CALL' statement to function 'FN'.  The argument
!      'FN' must be either a 'FUNCTION_DECL' or a gimple call address as
!      determined by 'is_gimple_call_addr'.  'NARGS' are the number of
!      arguments.  The rest of the arguments follow the argument 'NARGS',
       and must be trees that are valid as rvalues in gimple (i.e., each
!      operand is validated with 'is_gimple_operand').
  
   -- GIMPLE function: gcall *gimple_build_call_from_tree (tree call_expr)
!      Build a 'GIMPLE_CALL' from a 'CALL_EXPR' node.  The arguments and
       the function are taken from the expression directly.  This routine
!      assumes that 'call_expr' is already in GIMPLE form.  That is, its
       operands are GIMPLE values and the function call needs no further
!      simplification.  All the call flags in 'call_expr' are copied over
!      to the new 'GIMPLE_CALL'.
  
!  -- GIMPLE function: gcall *gimple_build_call_vec (tree fn, 'vec<tree>'
            args)
!      Identical to 'gimple_build_call' but the arguments are stored in a
!      'vec<tree>'.
  
   -- GIMPLE function: tree gimple_call_lhs (gimple g)
!      Return the 'LHS' of call statement 'G'.
  
   -- GIMPLE function: tree * gimple_call_lhs_ptr (gimple g)
!      Return a pointer to the 'LHS' of call statement 'G'.
  
   -- GIMPLE function: void gimple_call_set_lhs (gimple g, tree lhs)
!      Set 'LHS' to be the 'LHS' operand of call statement 'G'.
  
   -- GIMPLE function: tree gimple_call_fn (gimple g)
       Return the tree node representing the function called by call
!      statement 'G'.
  
   -- GIMPLE function: void gimple_call_set_fn (gcall *g, tree fn)
!      Set 'FN' to be the function called by call statement 'G'.  This has
       to be a gimple value specifying the address of the called function.
  
   -- GIMPLE function: tree gimple_call_fndecl (gimple g)
!      If a given 'GIMPLE_CALL''s callee is a 'FUNCTION_DECL', return it.
!      Otherwise return 'NULL'.  This function is analogous to
!      'get_callee_fndecl' in 'GENERIC'.
  
   -- GIMPLE function: tree gimple_call_set_fndecl (gimple g, tree fndecl)
!      Set the called function to 'FNDECL'.
  
   -- GIMPLE function: tree gimple_call_return_type (const gcall *g)
!      Return the type returned by call statement 'G'.
  
   -- GIMPLE function: tree gimple_call_chain (gimple g)
!      Return the static chain for call statement 'G'.
  
   -- GIMPLE function: void gimple_call_set_chain (gcall *g, tree chain)
!      Set 'CHAIN' to be the static chain for call statement 'G'.
  
   -- GIMPLE function: unsigned gimple_call_num_args (gimple g)
!      Return the number of arguments used by call statement 'G'.
  
   -- GIMPLE function: tree gimple_call_arg (gimple g, unsigned index)
!      Return the argument at position 'INDEX' for call statement 'G'.
       The first argument is 0.
  
   -- GIMPLE function: tree * gimple_call_arg_ptr (gimple g, unsigned
            index)
!      Return a pointer to the argument at position 'INDEX' for call
!      statement 'G'.
  
!  -- GIMPLE function: void gimple_call_set_arg (gimple g, unsigned index,
!           tree arg)
!      Set 'ARG' to be the argument at position 'INDEX' for call statement
!      'G'.
  
   -- GIMPLE function: void gimple_call_set_tail (gcall *s)
!      Mark call statement 'S' as being a tail call (i.e., a call just
!      before the exit of a function).  These calls are candidate for tail
       call optimization.
  
   -- GIMPLE function: bool gimple_call_tail_p (gcall *s)
!      Return true if 'GIMPLE_CALL' 'S' is marked as a tail call.
  
   -- GIMPLE function: bool gimple_call_noreturn_p (gimple s)
!      Return true if 'S' is a noreturn call.
  
   -- GIMPLE function: gimple gimple_call_copy_skip_args (gcall *stmt,
            bitmap args_to_skip)
!      Build a 'GIMPLE_CALL' identical to 'STMT' but skipping the
!      arguments in the positions marked by the set 'ARGS_TO_SKIP'.
  
  
! File: gccint.info,  Node: GIMPLE_CATCH,  Next: GIMPLE_COND,  Prev: GIMPLE_CALL,  Up: Tuple specific accessors
  
! 11.8.5 'GIMPLE_CATCH'
  ---------------------
  
   -- GIMPLE function: gcatch *gimple_build_catch (tree types, gimple_seq
            handler)
!      Build a 'GIMPLE_CATCH' statement.  'TYPES' are the tree types this
!      catch handles.  'HANDLER' is a sequence of statements with the code
       for the handler.
  
   -- GIMPLE function: tree gimple_catch_types (const gcatch *g)
!      Return the types handled by 'GIMPLE_CATCH' statement 'G'.
  
   -- GIMPLE function: tree * gimple_catch_types_ptr (gcatch *g)
!      Return a pointer to the types handled by 'GIMPLE_CATCH' statement
!      'G'.
  
   -- GIMPLE function: gimple_seq gimple_catch_handler (gcatch *g)
       Return the GIMPLE sequence representing the body of the handler of
!      'GIMPLE_CATCH' statement 'G'.
  
   -- GIMPLE function: void gimple_catch_set_types (gcatch *g, tree t)
!      Set 'T' to be the set of types handled by 'GIMPLE_CATCH' 'G'.
  
   -- GIMPLE function: void gimple_catch_set_handler (gcatch *g,
            gimple_seq handler)
!      Set 'HANDLER' to be the body of 'GIMPLE_CATCH' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_COND,  Next: GIMPLE_DEBUG,  Prev: GIMPLE_CATCH,  Up: Tuple specific accessors
  
! 11.8.6 'GIMPLE_COND'
  --------------------
  
   -- GIMPLE function: gcond *gimple_build_cond ( enum tree_code
            pred_code, tree lhs, tree rhs, tree t_label, tree f_label)
!      Build a 'GIMPLE_COND' statement.  'A' 'GIMPLE_COND' statement
!      compares 'LHS' and 'RHS' and if the condition in 'PRED_CODE' is
!      true, jump to the label in 't_label', otherwise jump to the label
!      in 'f_label'.  'PRED_CODE' are relational operator tree codes like
!      'EQ_EXPR', 'LT_EXPR', 'LE_EXPR', 'NE_EXPR', etc.
  
!  -- GIMPLE function: gcond *gimple_build_cond_from_tree (tree cond, tree
!           t_label, tree f_label)
!      Build a 'GIMPLE_COND' statement from the conditional expression
!      tree 'COND'.  'T_LABEL' and 'F_LABEL' are as in
!      'gimple_build_cond'.
  
   -- GIMPLE function: enum tree_code gimple_cond_code (gimple g)
       Return the code of the predicate computed by conditional statement
!      'G'.
  
!  -- GIMPLE function: void gimple_cond_set_code (gcond *g, enum tree_code
!           code)
!      Set 'CODE' to be the predicate code for the conditional statement
!      'G'.
  
   -- GIMPLE function: tree gimple_cond_lhs (gimple g)
!      Return the 'LHS' of the predicate computed by conditional statement
!      'G'.
  
   -- GIMPLE function: void gimple_cond_set_lhs (gcond *g, tree lhs)
!      Set 'LHS' to be the 'LHS' operand of the predicate computed by
!      conditional statement 'G'.
  
   -- GIMPLE function: tree gimple_cond_rhs (gimple g)
!      Return the 'RHS' operand of the predicate computed by conditional
!      'G'.
  
   -- GIMPLE function: void gimple_cond_set_rhs (gcond *g, tree rhs)
!      Set 'RHS' to be the 'RHS' operand of the predicate computed by
!      conditional statement 'G'.
  
   -- GIMPLE function: tree gimple_cond_true_label (const gcond *g)
!      Return the label used by conditional statement 'G' when its
       predicate evaluates to true.
  
   -- GIMPLE function: void gimple_cond_set_true_label (gcond *g, tree
            label)
!      Set 'LABEL' to be the label used by conditional statement 'G' when
       its predicate evaluates to true.
  
   -- GIMPLE function: void gimple_cond_set_false_label (gcond *g, tree
            label)
!      Set 'LABEL' to be the label used by conditional statement 'G' when
       its predicate evaluates to false.
  
   -- GIMPLE function: tree gimple_cond_false_label (const gcond *g)
!      Return the label used by conditional statement 'G' when its
       predicate evaluates to false.
  
   -- GIMPLE function: void gimple_cond_make_false (gcond *g)
!      Set the conditional 'COND_STMT' to be of the form 'if (1 == 0)'.
  
   -- GIMPLE function: void gimple_cond_make_true (gcond *g)
!      Set the conditional 'COND_STMT' to be of the form 'if (1 == 1)'.
  
  
! File: gccint.info,  Node: GIMPLE_DEBUG,  Next: GIMPLE_EH_FILTER,  Prev: GIMPLE_COND,  Up: Tuple specific accessors
  
! 11.8.7 'GIMPLE_DEBUG'
  ---------------------
  
   -- GIMPLE function: gdebug *gimple_build_debug_bind (tree var, tree
            value, gimple stmt)
!      Build a 'GIMPLE_DEBUG' statement with 'GIMPLE_DEBUG_BIND' of
!      'subcode'.  The effect of this statement is to tell debug
       information generation machinery that the value of user variable
!      'var' is given by 'value' at that point, and to remain with that
!      value until 'var' runs out of scope, a dynamically-subsequent debug
!      bind statement overrides the binding, or conflicting values reach a
!      control flow merge point.  Even if components of the 'value'
!      expression change afterwards, the variable is supposed to retain
!      the same value, though not necessarily the same location.
  
!      It is expected that 'var' be most often a tree for automatic user
!      variables ('VAR_DECL' or 'PARM_DECL') that satisfy the requirements
!      for gimple registers, but it may also be a tree for a scalarized
!      component of a user variable ('ARRAY_REF', 'COMPONENT_REF'), or a
!      debug temporary ('DEBUG_EXPR_DECL').
  
!      As for 'value', it can be an arbitrary tree expression, but it is
       recommended that it be in a suitable form for a gimple assignment
!      'RHS'.  It is not expected that user variables that could appear as
!      'var' ever appear in 'value', because in the latter we'd have their
!      'SSA_NAME's instead, but even if they were not in SSA form, user
!      variables appearing in 'value' are to be regarded as part of the
!      executable code space, whereas those in 'var' are to be regarded as
!      part of the source code space.  There is no way to refer to the
!      value bound to a user variable within a 'value' expression.
  
!      If 'value' is 'GIMPLE_DEBUG_BIND_NOVALUE', debug information
!      generation machinery is informed that the variable 'var' is
       unbound, i.e., that its value is indeterminate, which sometimes
       means it is really unavailable, and other times that the compiler
       could not keep track of it.
  
!      Block and location information for the newly-created stmt are taken
!      from 'stmt', if given.
  
   -- GIMPLE function: tree gimple_debug_bind_get_var (gimple stmt)
!      Return the user variable VAR that is bound at 'stmt'.
  
   -- GIMPLE function: tree gimple_debug_bind_get_value (gimple stmt)
       Return the value expression that is bound to a user variable at
!      'stmt'.
  
   -- GIMPLE function: tree * gimple_debug_bind_get_value_ptr (gimple
            stmt)
       Return a pointer to the value expression that is bound to a user
!      variable at 'stmt'.
  
   -- GIMPLE function: void gimple_debug_bind_set_var (gimple stmt, tree
            var)
!      Modify the user variable bound at 'stmt' to VAR.
  
!  -- GIMPLE function: void gimple_debug_bind_set_value (gimple stmt, tree
!           var)
!      Modify the value bound to the user variable bound at 'stmt' to
       VALUE.
  
   -- GIMPLE function: void gimple_debug_bind_reset_value (gimple stmt)
!      Modify the value bound to the user variable bound at 'stmt' so that
!      the variable becomes unbound.
  
   -- GIMPLE function: bool gimple_debug_bind_has_value_p (gimple stmt)
!      Return 'TRUE' if 'stmt' binds a user variable to a value, and
!      'FALSE' if it unbinds the variable.
  
  
! File: gccint.info,  Node: GIMPLE_EH_FILTER,  Next: GIMPLE_LABEL,  Prev: GIMPLE_DEBUG,  Up: Tuple specific accessors
  
! 11.8.8 'GIMPLE_EH_FILTER'
  -------------------------
  
   -- GIMPLE function: geh_filter *gimple_build_eh_filter (tree types,
            gimple_seq failure)
!      Build a 'GIMPLE_EH_FILTER' statement.  'TYPES' are the filter's
!      types.  'FAILURE' is a sequence with the filter's failure action.
  
   -- GIMPLE function: tree gimple_eh_filter_types (gimple g)
!      Return the types handled by 'GIMPLE_EH_FILTER' statement 'G'.
  
   -- GIMPLE function: tree * gimple_eh_filter_types_ptr (gimple g)
!      Return a pointer to the types handled by 'GIMPLE_EH_FILTER'
!      statement 'G'.
  
   -- GIMPLE function: gimple_seq gimple_eh_filter_failure (gimple g)
!      Return the sequence of statement to execute when 'GIMPLE_EH_FILTER'
       statement fails.
  
   -- GIMPLE function: void gimple_eh_filter_set_types (geh_filter *g,
            tree types)
!      Set 'TYPES' to be the set of types handled by 'GIMPLE_EH_FILTER'
!      'G'.
  
   -- GIMPLE function: void gimple_eh_filter_set_failure (geh_filter *g,
            gimple_seq failure)
!      Set 'FAILURE' to be the sequence of statements to execute on
!      failure for 'GIMPLE_EH_FILTER' 'G'.
  
   -- GIMPLE function: tree gimple_eh_must_not_throw_fndecl ( geh_mnt
            *eh_mnt_stmt)
*************** File: gccint.info,  Node: `GIMPLE_EH_FIL
*** 12215,12300 ****
       Set the function decl to be called by GS to DECL.
  
  
! File: gccint.info,  Node: `GIMPLE_LABEL',  Next: `GIMPLE_GOTO',  Prev: `GIMPLE_EH_FILTER',  Up: Tuple specific accessors
  
! 11.8.9 `GIMPLE_LABEL'
  ---------------------
  
   -- GIMPLE function: glabel *gimple_build_label (tree label)
!      Build a `GIMPLE_LABEL' statement with corresponding to the tree
!      label, `LABEL'.
  
   -- GIMPLE function: tree gimple_label_label (const glabel *g)
!      Return the `LABEL_DECL' node used by `GIMPLE_LABEL' statement `G'.
  
   -- GIMPLE function: void gimple_label_set_label (glabel *g, tree label)
!      Set `LABEL' to be the `LABEL_DECL' node used by `GIMPLE_LABEL'
!      statement `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_GOTO',  Next: `GIMPLE_NOP',  Prev: `GIMPLE_LABEL',  Up: Tuple specific accessors
  
! 11.8.10 `GIMPLE_GOTO'
  ---------------------
  
   -- GIMPLE function: ggoto *gimple_build_goto (tree dest)
!      Build a `GIMPLE_GOTO' statement to label `DEST'.
  
   -- GIMPLE function: tree gimple_goto_dest (gimple g)
!      Return the destination of the unconditional jump `G'.
  
   -- GIMPLE function: void gimple_goto_set_dest (ggoto *g, tree dest)
!      Set `DEST' to be the destination of the unconditional jump `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_NOP',  Next: `GIMPLE_OMP_ATOMIC_LOAD',  Prev: `GIMPLE_GOTO',  Up: Tuple specific accessors
  
! 11.8.11 `GIMPLE_NOP'
  --------------------
  
   -- GIMPLE function: gimple gimple_build_nop (void)
!      Build a `GIMPLE_NOP' statement.
  
   -- GIMPLE function: bool gimple_nop_p (gimple g)
!      Returns `TRUE' if statement `G' is a `GIMPLE_NOP'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_ATOMIC_LOAD',  Next: `GIMPLE_OMP_ATOMIC_STORE',  Prev: `GIMPLE_NOP',  Up: Tuple specific accessors
  
! 11.8.12 `GIMPLE_OMP_ATOMIC_LOAD'
  --------------------------------
  
   -- GIMPLE function: gomp_atomic_load *gimple_build_omp_atomic_load (
            tree lhs, tree rhs)
!      Build a `GIMPLE_OMP_ATOMIC_LOAD' statement.  `LHS' is the left-hand
!      side of the assignment.  `RHS' is the right-hand side of the
       assignment.
  
   -- GIMPLE function: void gimple_omp_atomic_load_set_lhs (
            gomp_atomic_load *g, tree lhs)
!      Set the `LHS' of an atomic load.
  
   -- GIMPLE function: tree gimple_omp_atomic_load_lhs ( const
            gomp_atomic_load *g)
!      Get the `LHS' of an atomic load.
  
   -- GIMPLE function: void gimple_omp_atomic_load_set_rhs (
            gomp_atomic_load *g, tree rhs)
!      Set the `RHS' of an atomic set.
  
   -- GIMPLE function: tree gimple_omp_atomic_load_rhs ( const
            gomp_atomic_load *g)
!      Get the `RHS' of an atomic set.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_ATOMIC_STORE',  Next: `GIMPLE_OMP_CONTINUE',  Prev: `GIMPLE_OMP_ATOMIC_LOAD',  Up: Tuple specific accessors
  
! 11.8.13 `GIMPLE_OMP_ATOMIC_STORE'
  ---------------------------------
  
   -- GIMPLE function: gomp_atomic_store *gimple_build_omp_atomic_store (
            tree val)
!      Build a `GIMPLE_OMP_ATOMIC_STORE' statement. `VAL' is the value to
       be stored.
  
   -- GIMPLE function: void gimple_omp_atomic_store_set_val (
--- 12076,12161 ----
       Set the function decl to be called by GS to DECL.
  
  
! File: gccint.info,  Node: GIMPLE_LABEL,  Next: GIMPLE_GOTO,  Prev: GIMPLE_EH_FILTER,  Up: Tuple specific accessors
  
! 11.8.9 'GIMPLE_LABEL'
  ---------------------
  
   -- GIMPLE function: glabel *gimple_build_label (tree label)
!      Build a 'GIMPLE_LABEL' statement with corresponding to the tree
!      label, 'LABEL'.
  
   -- GIMPLE function: tree gimple_label_label (const glabel *g)
!      Return the 'LABEL_DECL' node used by 'GIMPLE_LABEL' statement 'G'.
  
   -- GIMPLE function: void gimple_label_set_label (glabel *g, tree label)
!      Set 'LABEL' to be the 'LABEL_DECL' node used by 'GIMPLE_LABEL'
!      statement 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_GOTO,  Next: GIMPLE_NOP,  Prev: GIMPLE_LABEL,  Up: Tuple specific accessors
  
! 11.8.10 'GIMPLE_GOTO'
  ---------------------
  
   -- GIMPLE function: ggoto *gimple_build_goto (tree dest)
!      Build a 'GIMPLE_GOTO' statement to label 'DEST'.
  
   -- GIMPLE function: tree gimple_goto_dest (gimple g)
!      Return the destination of the unconditional jump 'G'.
  
   -- GIMPLE function: void gimple_goto_set_dest (ggoto *g, tree dest)
!      Set 'DEST' to be the destination of the unconditional jump 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_NOP,  Next: GIMPLE_OMP_ATOMIC_LOAD,  Prev: GIMPLE_GOTO,  Up: Tuple specific accessors
  
! 11.8.11 'GIMPLE_NOP'
  --------------------
  
   -- GIMPLE function: gimple gimple_build_nop (void)
!      Build a 'GIMPLE_NOP' statement.
  
   -- GIMPLE function: bool gimple_nop_p (gimple g)
!      Returns 'TRUE' if statement 'G' is a 'GIMPLE_NOP'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_ATOMIC_LOAD,  Next: GIMPLE_OMP_ATOMIC_STORE,  Prev: GIMPLE_NOP,  Up: Tuple specific accessors
  
! 11.8.12 'GIMPLE_OMP_ATOMIC_LOAD'
  --------------------------------
  
   -- GIMPLE function: gomp_atomic_load *gimple_build_omp_atomic_load (
            tree lhs, tree rhs)
!      Build a 'GIMPLE_OMP_ATOMIC_LOAD' statement.  'LHS' is the left-hand
!      side of the assignment.  'RHS' is the right-hand side of the
       assignment.
  
   -- GIMPLE function: void gimple_omp_atomic_load_set_lhs (
            gomp_atomic_load *g, tree lhs)
!      Set the 'LHS' of an atomic load.
  
   -- GIMPLE function: tree gimple_omp_atomic_load_lhs ( const
            gomp_atomic_load *g)
!      Get the 'LHS' of an atomic load.
  
   -- GIMPLE function: void gimple_omp_atomic_load_set_rhs (
            gomp_atomic_load *g, tree rhs)
!      Set the 'RHS' of an atomic set.
  
   -- GIMPLE function: tree gimple_omp_atomic_load_rhs ( const
            gomp_atomic_load *g)
!      Get the 'RHS' of an atomic set.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_ATOMIC_STORE,  Next: GIMPLE_OMP_CONTINUE,  Prev: GIMPLE_OMP_ATOMIC_LOAD,  Up: Tuple specific accessors
  
! 11.8.13 'GIMPLE_OMP_ATOMIC_STORE'
  ---------------------------------
  
   -- GIMPLE function: gomp_atomic_store *gimple_build_omp_atomic_store (
            tree val)
!      Build a 'GIMPLE_OMP_ATOMIC_STORE' statement.  'VAL' is the value to
       be stored.
  
   -- GIMPLE function: void gimple_omp_atomic_store_set_val (
*************** File: gccint.info,  Node: `GIMPLE_OMP_AT
*** 12306,12326 ****
       Return the value being stored in an atomic store.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_CONTINUE',  Next: `GIMPLE_OMP_CRITICAL',  Prev: `GIMPLE_OMP_ATOMIC_STORE',  Up: Tuple specific accessors
  
! 11.8.14 `GIMPLE_OMP_CONTINUE'
  -----------------------------
  
   -- GIMPLE function: gomp_continue *gimple_build_omp_continue ( tree
            control_def, tree control_use)
!      Build a `GIMPLE_OMP_CONTINUE' statement.  `CONTROL_DEF' is the
!      definition of the control variable.  `CONTROL_USE' is the use of
       the control variable.
  
   -- GIMPLE function: tree gimple_omp_continue_control_def ( const
            gomp_continue *s)
       Return the definition of the control variable on a
!      `GIMPLE_OMP_CONTINUE' in `S'.
  
   -- GIMPLE function: tree gimple_omp_continue_control_def_ptr (
            gomp_continue *s)
--- 12167,12187 ----
       Return the value being stored in an atomic store.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_CONTINUE,  Next: GIMPLE_OMP_CRITICAL,  Prev: GIMPLE_OMP_ATOMIC_STORE,  Up: Tuple specific accessors
  
! 11.8.14 'GIMPLE_OMP_CONTINUE'
  -----------------------------
  
   -- GIMPLE function: gomp_continue *gimple_build_omp_continue ( tree
            control_def, tree control_use)
!      Build a 'GIMPLE_OMP_CONTINUE' statement.  'CONTROL_DEF' is the
!      definition of the control variable.  'CONTROL_USE' is the use of
       the control variable.
  
   -- GIMPLE function: tree gimple_omp_continue_control_def ( const
            gomp_continue *s)
       Return the definition of the control variable on a
!      'GIMPLE_OMP_CONTINUE' in 'S'.
  
   -- GIMPLE function: tree gimple_omp_continue_control_def_ptr (
            gomp_continue *s)
*************** File: gccint.info,  Node: `GIMPLE_OMP_CO
*** 12328,12340 ****
  
   -- GIMPLE function: tree gimple_omp_continue_set_control_def (
            gomp_continue *s)
!      Set the control variable definition for a `GIMPLE_OMP_CONTINUE'
!      statement in `S'.
  
   -- GIMPLE function: tree gimple_omp_continue_control_use ( const
            gomp_continue *s)
!      Return the use of the control variable on a `GIMPLE_OMP_CONTINUE'
!      in `S'.
  
   -- GIMPLE function: tree gimple_omp_continue_control_use_ptr (
            gomp_continue *s)
--- 12189,12201 ----
  
   -- GIMPLE function: tree gimple_omp_continue_set_control_def (
            gomp_continue *s)
!      Set the control variable definition for a 'GIMPLE_OMP_CONTINUE'
!      statement in 'S'.
  
   -- GIMPLE function: tree gimple_omp_continue_control_use ( const
            gomp_continue *s)
!      Return the use of the control variable on a 'GIMPLE_OMP_CONTINUE'
!      in 'S'.
  
   -- GIMPLE function: tree gimple_omp_continue_control_use_ptr (
            gomp_continue *s)
*************** File: gccint.info,  Node: `GIMPLE_OMP_CO
*** 12342,12754 ****
  
   -- GIMPLE function: tree gimple_omp_continue_set_control_use (
            gomp_continue *s)
!      Set the control variable use for a `GIMPLE_OMP_CONTINUE' statement
!      in `S'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_CRITICAL',  Next: `GIMPLE_OMP_FOR',  Prev: `GIMPLE_OMP_CONTINUE',  Up: Tuple specific accessors
  
! 11.8.15 `GIMPLE_OMP_CRITICAL'
  -----------------------------
  
   -- GIMPLE function: gomp_critical *gimple_build_omp_critical (
            gimple_seq body, tree name)
!      Build a `GIMPLE_OMP_CRITICAL' statement. `BODY' is the sequence of
!      statements for which only one thread can execute.  `NAME' is an
       optional identifier for this critical block.
  
!  -- GIMPLE function: tree gimple_omp_critical_name ( const
!           gomp_critical *g)
!      Return the name associated with `OMP_CRITICAL' statement `G'.
  
!  -- GIMPLE function: tree * gimple_omp_critical_name_ptr (
!           gomp_critical *g)
!      Return a pointer to the name associated with `OMP' critical
!      statement `G'.
  
   -- GIMPLE function: void gimple_omp_critical_set_name ( gomp_critical
            *g, tree name)
!      Set `NAME' to be the name associated with `OMP' critical statement
!      `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_FOR',  Next: `GIMPLE_OMP_MASTER',  Prev: `GIMPLE_OMP_CRITICAL',  Up: Tuple specific accessors
  
! 11.8.16 `GIMPLE_OMP_FOR'
  ------------------------
  
   -- GIMPLE function: gomp_for *gimple_build_omp_for (gimple_seq body,
!           tree clauses, tree index, tree initial, tree final, tree
!           incr, gimple_seq pre_body, enum tree_code omp_for_cond)
!      Build a `GIMPLE_OMP_FOR' statement. `BODY' is sequence of
!      statements inside the for loop.  `CLAUSES', are any of the loop
!      construct's clauses.  `PRE_BODY' is the sequence of statements
!      that are loop invariant.  `INDEX' is the index variable.
!      `INITIAL' is the initial value of `INDEX'.  `FINAL' is final value
!      of `INDEX'.  OMP_FOR_COND is the predicate used to compare `INDEX'
!      and `FINAL'.  `INCR' is the increment expression.
  
   -- GIMPLE function: tree gimple_omp_for_clauses (gimple g)
!      Return the clauses associated with `OMP_FOR' `G'.
  
   -- GIMPLE function: tree * gimple_omp_for_clauses_ptr (gimple g)
!      Return a pointer to the `OMP_FOR' `G'.
  
   -- GIMPLE function: void gimple_omp_for_set_clauses (gimple g, tree
            clauses)
!      Set `CLAUSES' to be the list of clauses associated with `OMP_FOR'
!      `G'.
  
   -- GIMPLE function: tree gimple_omp_for_index (gimple g)
!      Return the index variable for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree * gimple_omp_for_index_ptr (gimple g)
!      Return a pointer to the index variable for `OMP_FOR' `G'.
  
   -- GIMPLE function: void gimple_omp_for_set_index (gimple g, tree
            index)
!      Set `INDEX' to be the index variable for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree gimple_omp_for_initial (gimple g)
!      Return the initial value for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree * gimple_omp_for_initial_ptr (gimple g)
!      Return a pointer to the initial value for `OMP_FOR' `G'.
  
   -- GIMPLE function: void gimple_omp_for_set_initial (gimple g, tree
            initial)
!      Set `INITIAL' to be the initial value for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree gimple_omp_for_final (gimple g)
!      Return the final value for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree * gimple_omp_for_final_ptr (gimple g)
!      turn a pointer to the final value for `OMP_FOR' `G'.
  
   -- GIMPLE function: void gimple_omp_for_set_final (gimple g, tree
            final)
!      Set `FINAL' to be the final value for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree gimple_omp_for_incr (gimple g)
!      Return the increment value for `OMP_FOR' `G'.
  
   -- GIMPLE function: tree * gimple_omp_for_incr_ptr (gimple g)
!      Return a pointer to the increment value for `OMP_FOR' `G'.
  
   -- GIMPLE function: void gimple_omp_for_set_incr (gimple g, tree incr)
!      Set `INCR' to be the increment value for `OMP_FOR' `G'.
  
   -- GIMPLE function: gimple_seq gimple_omp_for_pre_body (gimple g)
!      Return the sequence of statements to execute before the `OMP_FOR'
!      statement `G' starts.
  
   -- GIMPLE function: void gimple_omp_for_set_pre_body (gimple g,
            gimple_seq pre_body)
!      Set `PRE_BODY' to be the sequence of statements to execute before
!      the `OMP_FOR' statement `G' starts.
  
   -- GIMPLE function: void gimple_omp_for_set_cond (gimple g, enum
            tree_code cond)
!      Set `COND' to be the condition code for `OMP_FOR' `G'.
  
   -- GIMPLE function: enum tree_code gimple_omp_for_cond (gimple g)
!      Return the condition code associated with `OMP_FOR' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_MASTER',  Next: `GIMPLE_OMP_ORDERED',  Prev: `GIMPLE_OMP_FOR',  Up: Tuple specific accessors
  
! 11.8.17 `GIMPLE_OMP_MASTER'
  ---------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_master (gimple_seq body)
!      Build a `GIMPLE_OMP_MASTER' statement. `BODY' is the sequence of
       statements to be executed by just the master.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_ORDERED',  Next: `GIMPLE_OMP_PARALLEL',  Prev: `GIMPLE_OMP_MASTER',  Up: Tuple specific accessors
  
! 11.8.18 `GIMPLE_OMP_ORDERED'
  ----------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_ordered (gimple_seq body)
!      Build a `GIMPLE_OMP_ORDERED' statement.
  
!  `BODY' is the sequence of statements inside a loop that will executed
  in sequence.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_PARALLEL',  Next: `GIMPLE_OMP_RETURN',  Prev: `GIMPLE_OMP_ORDERED',  Up: Tuple specific accessors
  
! 11.8.19 `GIMPLE_OMP_PARALLEL'
  -----------------------------
  
!  -- GIMPLE function: gomp_parallel *gimple_build_omp_parallel (
!           gimple_seq body, tree clauses, tree child_fn, tree data_arg)
!      Build a `GIMPLE_OMP_PARALLEL' statement.
  
!  `BODY' is sequence of statements which are executed in parallel.
! `CLAUSES', are the `OMP' parallel construct's clauses.  `CHILD_FN' is
! the function created for the parallel threads to execute.  `DATA_ARG'
  are the shared data argument(s).
  
   -- GIMPLE function: bool gimple_omp_parallel_combined_p (gimple g)
!      Return true if `OMP' parallel statement `G' has the
!      `GF_OMP_PARALLEL_COMBINED' flag set.
  
   -- GIMPLE function: void gimple_omp_parallel_set_combined_p (gimple g)
!      Set the `GF_OMP_PARALLEL_COMBINED' field in `OMP' parallel
!      statement `G'.
  
   -- GIMPLE function: gimple_seq gimple_omp_body (gimple g)
!      Return the body for the `OMP' statement `G'.
  
   -- GIMPLE function: void gimple_omp_set_body (gimple g, gimple_seq
            body)
!      Set `BODY' to be the body for the `OMP' statement `G'.
  
   -- GIMPLE function: tree gimple_omp_parallel_clauses (gimple g)
!      Return the clauses associated with `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: tree * gimple_omp_parallel_clauses_ptr (
            gomp_parallel *g)
!      Return a pointer to the clauses associated with `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: void gimple_omp_parallel_set_clauses (
            gomp_parallel *g, tree clauses)
!      Set `CLAUSES' to be the list of clauses associated with
!      `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: tree gimple_omp_parallel_child_fn ( const
            gomp_parallel *g)
!      Return the child function used to hold the body of `OMP_PARALLEL'
!      `G'.
  
   -- GIMPLE function: tree * gimple_omp_parallel_child_fn_ptr (
            gomp_parallel *g)
       Return a pointer to the child function used to hold the body of
!      `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: void gimple_omp_parallel_set_child_fn (
            gomp_parallel *g, tree child_fn)
!      Set `CHILD_FN' to be the child function for `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: tree gimple_omp_parallel_data_arg ( const
            gomp_parallel *g)
       Return the artificial argument used to send variables and values
!      from the parent to the children threads in `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: tree * gimple_omp_parallel_data_arg_ptr (
            gomp_parallel *g)
!      Return a pointer to the data argument for `OMP_PARALLEL' `G'.
  
   -- GIMPLE function: void gimple_omp_parallel_set_data_arg (
            gomp_parallel *g, tree data_arg)
!      Set `DATA_ARG' to be the data argument for `OMP_PARALLEL' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_RETURN',  Next: `GIMPLE_OMP_SECTION',  Prev: `GIMPLE_OMP_PARALLEL',  Up: Tuple specific accessors
  
! 11.8.20 `GIMPLE_OMP_RETURN'
  ---------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_return (bool wait_p)
!      Build a `GIMPLE_OMP_RETURN' statement. `WAIT_P' is true if this is
       a non-waiting return.
  
   -- GIMPLE function: void gimple_omp_return_set_nowait (gimple s)
!      Set the nowait flag on `GIMPLE_OMP_RETURN' statement `S'.
  
   -- GIMPLE function: bool gimple_omp_return_nowait_p (gimple g)
!      Return true if `OMP' return statement `G' has the
!      `GF_OMP_RETURN_NOWAIT' flag set.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_SECTION',  Next: `GIMPLE_OMP_SECTIONS',  Prev: `GIMPLE_OMP_RETURN',  Up: Tuple specific accessors
  
! 11.8.21 `GIMPLE_OMP_SECTION'
  ----------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_section (gimple_seq body)
!      Build a `GIMPLE_OMP_SECTION' statement for a sections statement.
  
!  `BODY' is the sequence of statements in the section.
  
   -- GIMPLE function: bool gimple_omp_section_last_p (gimple g)
!      Return true if `OMP' section statement `G' has the
!      `GF_OMP_SECTION_LAST' flag set.
  
   -- GIMPLE function: void gimple_omp_section_set_last (gimple g)
!      Set the `GF_OMP_SECTION_LAST' flag on `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_SECTIONS',  Next: `GIMPLE_OMP_SINGLE',  Prev: `GIMPLE_OMP_SECTION',  Up: Tuple specific accessors
  
! 11.8.22 `GIMPLE_OMP_SECTIONS'
  -----------------------------
  
   -- GIMPLE function: gomp_sections *gimple_build_omp_sections (
            gimple_seq body, tree clauses)
!      Build a `GIMPLE_OMP_SECTIONS' statement. `BODY' is a sequence of
!      section statements.  `CLAUSES' are any of the `OMP' sections
!      construct's clauses: private, firstprivate, lastprivate,
!      reduction, and nowait.
  
   -- GIMPLE function: gimple gimple_build_omp_sections_switch (void)
!      Build a `GIMPLE_OMP_SECTIONS_SWITCH' statement.
  
   -- GIMPLE function: tree gimple_omp_sections_control (gimple g)
       Return the control variable associated with the
!      `GIMPLE_OMP_SECTIONS' in `G'.
  
   -- GIMPLE function: tree * gimple_omp_sections_control_ptr (gimple g)
       Return a pointer to the clauses associated with the
!      `GIMPLE_OMP_SECTIONS' in `G'.
  
   -- GIMPLE function: void gimple_omp_sections_set_control (gimple g,
            tree control)
!      Set `CONTROL' to be the set of clauses associated with the
!      `GIMPLE_OMP_SECTIONS' in `G'.
  
   -- GIMPLE function: tree gimple_omp_sections_clauses (gimple g)
!      Return the clauses associated with `OMP_SECTIONS' `G'.
  
   -- GIMPLE function: tree * gimple_omp_sections_clauses_ptr (gimple g)
!      Return a pointer to the clauses associated with `OMP_SECTIONS' `G'.
  
   -- GIMPLE function: void gimple_omp_sections_set_clauses (gimple g,
            tree clauses)
!      Set `CLAUSES' to be the set of clauses associated with
!      `OMP_SECTIONS' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_OMP_SINGLE',  Next: `GIMPLE_PHI',  Prev: `GIMPLE_OMP_SECTIONS',  Up: Tuple specific accessors
  
! 11.8.23 `GIMPLE_OMP_SINGLE'
  ---------------------------
  
   -- GIMPLE function: gomp_single *gimple_build_omp_single ( gimple_seq
            body, tree clauses)
!      Build a `GIMPLE_OMP_SINGLE' statement. `BODY' is the sequence of
!      statements that will be executed once.  `CLAUSES' are any of the
!      `OMP' single construct's clauses: private, firstprivate,
       copyprivate, nowait.
  
   -- GIMPLE function: tree gimple_omp_single_clauses (gimple g)
!      Return the clauses associated with `OMP_SINGLE' `G'.
  
   -- GIMPLE function: tree * gimple_omp_single_clauses_ptr (gimple g)
!      Return a pointer to the clauses associated with `OMP_SINGLE' `G'.
  
   -- GIMPLE function: void gimple_omp_single_set_clauses ( gomp_single
            *g, tree clauses)
!      Set `CLAUSES' to be the clauses associated with `OMP_SINGLE' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_PHI',  Next: `GIMPLE_RESX',  Prev: `GIMPLE_OMP_SINGLE',  Up: Tuple specific accessors
  
! 11.8.24 `GIMPLE_PHI'
  --------------------
  
   -- GIMPLE function: unsigned gimple_phi_capacity (gimple g)
!      Return the maximum number of arguments supported by `GIMPLE_PHI'
!      `G'.
  
   -- GIMPLE function: unsigned gimple_phi_num_args (gimple g)
!      Return the number of arguments in `GIMPLE_PHI' `G'. This must
       always be exactly the number of incoming edges for the basic block
!      holding `G'.
  
   -- GIMPLE function: tree gimple_phi_result (gimple g)
!      Return the `SSA' name created by `GIMPLE_PHI' `G'.
  
   -- GIMPLE function: tree * gimple_phi_result_ptr (gimple g)
!      Return a pointer to the `SSA' name created by `GIMPLE_PHI' `G'.
  
   -- GIMPLE function: void gimple_phi_set_result (gphi *g, tree result)
!      Set `RESULT' to be the `SSA' name created by `GIMPLE_PHI' `G'.
  
   -- GIMPLE function: struct phi_arg_d * gimple_phi_arg (gimple g, index)
!      Return the `PHI' argument corresponding to incoming edge `INDEX'
!      for `GIMPLE_PHI' `G'.
  
   -- GIMPLE function: void gimple_phi_set_arg (gphi *g, index, struct
            phi_arg_d * phiarg)
!      Set `PHIARG' to be the argument corresponding to incoming edge
!      `INDEX' for `GIMPLE_PHI' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_RESX',  Next: `GIMPLE_RETURN',  Prev: `GIMPLE_PHI',  Up: Tuple specific accessors
  
! 11.8.25 `GIMPLE_RESX'
  ---------------------
  
   -- GIMPLE function: gresx *gimple_build_resx (int region)
!      Build a `GIMPLE_RESX' statement which is a statement.  This
       statement is a placeholder for _Unwind_Resume before we know if a
!      function call or a branch is needed.  `REGION' is the exception
       region from which control is flowing.
  
   -- GIMPLE function: int gimple_resx_region (const gresx *g)
!      Return the region number for `GIMPLE_RESX' `G'.
  
   -- GIMPLE function: void gimple_resx_set_region (gresx *g, int region)
!      Set `REGION' to be the region number for `GIMPLE_RESX' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_RETURN',  Next: `GIMPLE_SWITCH',  Prev: `GIMPLE_RESX',  Up: Tuple specific accessors
  
! 11.8.26 `GIMPLE_RETURN'
  -----------------------
  
   -- GIMPLE function: greturn *gimple_build_return (tree retval)
!      Build a `GIMPLE_RETURN' statement whose return value is retval.
  
   -- GIMPLE function: tree gimple_return_retval (const greturn *g)
!      Return the return value for `GIMPLE_RETURN' `G'.
  
   -- GIMPLE function: void gimple_return_set_retval (greturn *g, tree
            retval)
!      Set `RETVAL' to be the return value for `GIMPLE_RETURN' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_SWITCH',  Next: `GIMPLE_TRY',  Prev: `GIMPLE_RETURN',  Up: Tuple specific accessors
  
! 11.8.27 `GIMPLE_SWITCH'
  -----------------------
  
   -- GIMPLE function: gswitch *gimple_build_switch (tree index, tree
!           default_label, `vec'<tree> *args)
!      Build a `GIMPLE_SWITCH' statement.  `INDEX' is the index variable
!      to switch on, and `DEFAULT_LABEL' represents the default label.
!      `ARGS' is a vector of `CASE_LABEL_EXPR' trees that contain the
       non-default case labels.  Each label is a tree of code
!      `CASE_LABEL_EXPR'.
  
   -- GIMPLE function: unsigned gimple_switch_num_labels ( const gswitch
            *g)
       Return the number of labels associated with the switch statement
!      `G'.
  
   -- GIMPLE function: void gimple_switch_set_num_labels (gswitch *g,
            unsigned nlabels)
!      Set `NLABELS' to be the number of labels for the switch statement
!      `G'.
  
   -- GIMPLE function: tree gimple_switch_index (const gswitch *g)
!      Return the index variable used by the switch statement `G'.
  
   -- GIMPLE function: void gimple_switch_set_index (gswitch *g, tree
            index)
!      Set `INDEX' to be the index variable for switch statement `G'.
  
   -- GIMPLE function: tree gimple_switch_label (const gswitch *g,
            unsigned index)
!      Return the label numbered `INDEX'. The default label is 0, followed
!      by any labels in a switch statement.
  
   -- GIMPLE function: void gimple_switch_set_label (gswitch *g, unsigned
            index, tree label)
!      Set the label number `INDEX' to `LABEL'. 0 is always the default
       label.
  
   -- GIMPLE function: tree gimple_switch_default_label ( const gswitch
--- 12203,12615 ----
  
   -- GIMPLE function: tree gimple_omp_continue_set_control_use (
            gomp_continue *s)
!      Set the control variable use for a 'GIMPLE_OMP_CONTINUE' statement
!      in 'S'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_CRITICAL,  Next: GIMPLE_OMP_FOR,  Prev: GIMPLE_OMP_CONTINUE,  Up: Tuple specific accessors
  
! 11.8.15 'GIMPLE_OMP_CRITICAL'
  -----------------------------
  
   -- GIMPLE function: gomp_critical *gimple_build_omp_critical (
            gimple_seq body, tree name)
!      Build a 'GIMPLE_OMP_CRITICAL' statement.  'BODY' is the sequence of
!      statements for which only one thread can execute.  'NAME' is an
       optional identifier for this critical block.
  
!  -- GIMPLE function: tree gimple_omp_critical_name ( const gomp_critical
!           *g)
!      Return the name associated with 'OMP_CRITICAL' statement 'G'.
  
!  -- GIMPLE function: tree * gimple_omp_critical_name_ptr ( gomp_critical
!           *g)
!      Return a pointer to the name associated with 'OMP' critical
!      statement 'G'.
  
   -- GIMPLE function: void gimple_omp_critical_set_name ( gomp_critical
            *g, tree name)
!      Set 'NAME' to be the name associated with 'OMP' critical statement
!      'G'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_FOR,  Next: GIMPLE_OMP_MASTER,  Prev: GIMPLE_OMP_CRITICAL,  Up: Tuple specific accessors
  
! 11.8.16 'GIMPLE_OMP_FOR'
  ------------------------
  
   -- GIMPLE function: gomp_for *gimple_build_omp_for (gimple_seq body,
!           tree clauses, tree index, tree initial, tree final, tree incr,
!           gimple_seq pre_body, enum tree_code omp_for_cond)
!      Build a 'GIMPLE_OMP_FOR' statement.  'BODY' is sequence of
!      statements inside the for loop.  'CLAUSES', are any of the loop
!      construct's clauses.  'PRE_BODY' is the sequence of statements that
!      are loop invariant.  'INDEX' is the index variable.  'INITIAL' is
!      the initial value of 'INDEX'.  'FINAL' is final value of 'INDEX'.
!      OMP_FOR_COND is the predicate used to compare 'INDEX' and 'FINAL'.
!      'INCR' is the increment expression.
  
   -- GIMPLE function: tree gimple_omp_for_clauses (gimple g)
!      Return the clauses associated with 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_for_clauses_ptr (gimple g)
!      Return a pointer to the 'OMP_FOR' 'G'.
  
   -- GIMPLE function: void gimple_omp_for_set_clauses (gimple g, tree
            clauses)
!      Set 'CLAUSES' to be the list of clauses associated with 'OMP_FOR'
!      'G'.
  
   -- GIMPLE function: tree gimple_omp_for_index (gimple g)
!      Return the index variable for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_for_index_ptr (gimple g)
!      Return a pointer to the index variable for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: void gimple_omp_for_set_index (gimple g, tree
            index)
!      Set 'INDEX' to be the index variable for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree gimple_omp_for_initial (gimple g)
!      Return the initial value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_for_initial_ptr (gimple g)
!      Return a pointer to the initial value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: void gimple_omp_for_set_initial (gimple g, tree
            initial)
!      Set 'INITIAL' to be the initial value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree gimple_omp_for_final (gimple g)
!      Return the final value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_for_final_ptr (gimple g)
!      turn a pointer to the final value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: void gimple_omp_for_set_final (gimple g, tree
            final)
!      Set 'FINAL' to be the final value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree gimple_omp_for_incr (gimple g)
!      Return the increment value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_for_incr_ptr (gimple g)
!      Return a pointer to the increment value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: void gimple_omp_for_set_incr (gimple g, tree incr)
!      Set 'INCR' to be the increment value for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: gimple_seq gimple_omp_for_pre_body (gimple g)
!      Return the sequence of statements to execute before the 'OMP_FOR'
!      statement 'G' starts.
  
   -- GIMPLE function: void gimple_omp_for_set_pre_body (gimple g,
            gimple_seq pre_body)
!      Set 'PRE_BODY' to be the sequence of statements to execute before
!      the 'OMP_FOR' statement 'G' starts.
  
   -- GIMPLE function: void gimple_omp_for_set_cond (gimple g, enum
            tree_code cond)
!      Set 'COND' to be the condition code for 'OMP_FOR' 'G'.
  
   -- GIMPLE function: enum tree_code gimple_omp_for_cond (gimple g)
!      Return the condition code associated with 'OMP_FOR' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_MASTER,  Next: GIMPLE_OMP_ORDERED,  Prev: GIMPLE_OMP_FOR,  Up: Tuple specific accessors
  
! 11.8.17 'GIMPLE_OMP_MASTER'
  ---------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_master (gimple_seq body)
!      Build a 'GIMPLE_OMP_MASTER' statement.  'BODY' is the sequence of
       statements to be executed by just the master.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_ORDERED,  Next: GIMPLE_OMP_PARALLEL,  Prev: GIMPLE_OMP_MASTER,  Up: Tuple specific accessors
  
! 11.8.18 'GIMPLE_OMP_ORDERED'
  ----------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_ordered (gimple_seq body)
!      Build a 'GIMPLE_OMP_ORDERED' statement.
  
!  'BODY' is the sequence of statements inside a loop that will executed
  in sequence.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_PARALLEL,  Next: GIMPLE_OMP_RETURN,  Prev: GIMPLE_OMP_ORDERED,  Up: Tuple specific accessors
  
! 11.8.19 'GIMPLE_OMP_PARALLEL'
  -----------------------------
  
!  -- GIMPLE function: gomp_parallel *gimple_build_omp_parallel
!           (gimple_seq body, tree clauses, tree child_fn, tree data_arg)
!      Build a 'GIMPLE_OMP_PARALLEL' statement.
  
!  'BODY' is sequence of statements which are executed in parallel.
! 'CLAUSES', are the 'OMP' parallel construct's clauses.  'CHILD_FN' is
! the function created for the parallel threads to execute.  'DATA_ARG'
  are the shared data argument(s).
  
   -- GIMPLE function: bool gimple_omp_parallel_combined_p (gimple g)
!      Return true if 'OMP' parallel statement 'G' has the
!      'GF_OMP_PARALLEL_COMBINED' flag set.
  
   -- GIMPLE function: void gimple_omp_parallel_set_combined_p (gimple g)
!      Set the 'GF_OMP_PARALLEL_COMBINED' field in 'OMP' parallel
!      statement 'G'.
  
   -- GIMPLE function: gimple_seq gimple_omp_body (gimple g)
!      Return the body for the 'OMP' statement 'G'.
  
   -- GIMPLE function: void gimple_omp_set_body (gimple g, gimple_seq
            body)
!      Set 'BODY' to be the body for the 'OMP' statement 'G'.
  
   -- GIMPLE function: tree gimple_omp_parallel_clauses (gimple g)
!      Return the clauses associated with 'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_parallel_clauses_ptr (
            gomp_parallel *g)
!      Return a pointer to the clauses associated with 'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: void gimple_omp_parallel_set_clauses (
            gomp_parallel *g, tree clauses)
!      Set 'CLAUSES' to be the list of clauses associated with
!      'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: tree gimple_omp_parallel_child_fn ( const
            gomp_parallel *g)
!      Return the child function used to hold the body of 'OMP_PARALLEL'
!      'G'.
  
   -- GIMPLE function: tree * gimple_omp_parallel_child_fn_ptr (
            gomp_parallel *g)
       Return a pointer to the child function used to hold the body of
!      'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: void gimple_omp_parallel_set_child_fn (
            gomp_parallel *g, tree child_fn)
!      Set 'CHILD_FN' to be the child function for 'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: tree gimple_omp_parallel_data_arg ( const
            gomp_parallel *g)
       Return the artificial argument used to send variables and values
!      from the parent to the children threads in 'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_parallel_data_arg_ptr (
            gomp_parallel *g)
!      Return a pointer to the data argument for 'OMP_PARALLEL' 'G'.
  
   -- GIMPLE function: void gimple_omp_parallel_set_data_arg (
            gomp_parallel *g, tree data_arg)
!      Set 'DATA_ARG' to be the data argument for 'OMP_PARALLEL' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_RETURN,  Next: GIMPLE_OMP_SECTION,  Prev: GIMPLE_OMP_PARALLEL,  Up: Tuple specific accessors
  
! 11.8.20 'GIMPLE_OMP_RETURN'
  ---------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_return (bool wait_p)
!      Build a 'GIMPLE_OMP_RETURN' statement.  'WAIT_P' is true if this is
       a non-waiting return.
  
   -- GIMPLE function: void gimple_omp_return_set_nowait (gimple s)
!      Set the nowait flag on 'GIMPLE_OMP_RETURN' statement 'S'.
  
   -- GIMPLE function: bool gimple_omp_return_nowait_p (gimple g)
!      Return true if 'OMP' return statement 'G' has the
!      'GF_OMP_RETURN_NOWAIT' flag set.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_SECTION,  Next: GIMPLE_OMP_SECTIONS,  Prev: GIMPLE_OMP_RETURN,  Up: Tuple specific accessors
  
! 11.8.21 'GIMPLE_OMP_SECTION'
  ----------------------------
  
   -- GIMPLE function: gimple gimple_build_omp_section (gimple_seq body)
!      Build a 'GIMPLE_OMP_SECTION' statement for a sections statement.
  
!  'BODY' is the sequence of statements in the section.
  
   -- GIMPLE function: bool gimple_omp_section_last_p (gimple g)
!      Return true if 'OMP' section statement 'G' has the
!      'GF_OMP_SECTION_LAST' flag set.
  
   -- GIMPLE function: void gimple_omp_section_set_last (gimple g)
!      Set the 'GF_OMP_SECTION_LAST' flag on 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_SECTIONS,  Next: GIMPLE_OMP_SINGLE,  Prev: GIMPLE_OMP_SECTION,  Up: Tuple specific accessors
  
! 11.8.22 'GIMPLE_OMP_SECTIONS'
  -----------------------------
  
   -- GIMPLE function: gomp_sections *gimple_build_omp_sections (
            gimple_seq body, tree clauses)
!      Build a 'GIMPLE_OMP_SECTIONS' statement.  'BODY' is a sequence of
!      section statements.  'CLAUSES' are any of the 'OMP' sections
!      construct's clauses: private, firstprivate, lastprivate, reduction,
!      and nowait.
  
   -- GIMPLE function: gimple gimple_build_omp_sections_switch (void)
!      Build a 'GIMPLE_OMP_SECTIONS_SWITCH' statement.
  
   -- GIMPLE function: tree gimple_omp_sections_control (gimple g)
       Return the control variable associated with the
!      'GIMPLE_OMP_SECTIONS' in 'G'.
  
   -- GIMPLE function: tree * gimple_omp_sections_control_ptr (gimple g)
       Return a pointer to the clauses associated with the
!      'GIMPLE_OMP_SECTIONS' in 'G'.
  
   -- GIMPLE function: void gimple_omp_sections_set_control (gimple g,
            tree control)
!      Set 'CONTROL' to be the set of clauses associated with the
!      'GIMPLE_OMP_SECTIONS' in 'G'.
  
   -- GIMPLE function: tree gimple_omp_sections_clauses (gimple g)
!      Return the clauses associated with 'OMP_SECTIONS' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_sections_clauses_ptr (gimple g)
!      Return a pointer to the clauses associated with 'OMP_SECTIONS' 'G'.
  
   -- GIMPLE function: void gimple_omp_sections_set_clauses (gimple g,
            tree clauses)
!      Set 'CLAUSES' to be the set of clauses associated with
!      'OMP_SECTIONS' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_OMP_SINGLE,  Next: GIMPLE_PHI,  Prev: GIMPLE_OMP_SECTIONS,  Up: Tuple specific accessors
  
! 11.8.23 'GIMPLE_OMP_SINGLE'
  ---------------------------
  
   -- GIMPLE function: gomp_single *gimple_build_omp_single ( gimple_seq
            body, tree clauses)
!      Build a 'GIMPLE_OMP_SINGLE' statement.  'BODY' is the sequence of
!      statements that will be executed once.  'CLAUSES' are any of the
!      'OMP' single construct's clauses: private, firstprivate,
       copyprivate, nowait.
  
   -- GIMPLE function: tree gimple_omp_single_clauses (gimple g)
!      Return the clauses associated with 'OMP_SINGLE' 'G'.
  
   -- GIMPLE function: tree * gimple_omp_single_clauses_ptr (gimple g)
!      Return a pointer to the clauses associated with 'OMP_SINGLE' 'G'.
  
   -- GIMPLE function: void gimple_omp_single_set_clauses ( gomp_single
            *g, tree clauses)
!      Set 'CLAUSES' to be the clauses associated with 'OMP_SINGLE' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_PHI,  Next: GIMPLE_RESX,  Prev: GIMPLE_OMP_SINGLE,  Up: Tuple specific accessors
  
! 11.8.24 'GIMPLE_PHI'
  --------------------
  
   -- GIMPLE function: unsigned gimple_phi_capacity (gimple g)
!      Return the maximum number of arguments supported by 'GIMPLE_PHI'
!      'G'.
  
   -- GIMPLE function: unsigned gimple_phi_num_args (gimple g)
!      Return the number of arguments in 'GIMPLE_PHI' 'G'.  This must
       always be exactly the number of incoming edges for the basic block
!      holding 'G'.
  
   -- GIMPLE function: tree gimple_phi_result (gimple g)
!      Return the 'SSA' name created by 'GIMPLE_PHI' 'G'.
  
   -- GIMPLE function: tree * gimple_phi_result_ptr (gimple g)
!      Return a pointer to the 'SSA' name created by 'GIMPLE_PHI' 'G'.
  
   -- GIMPLE function: void gimple_phi_set_result (gphi *g, tree result)
!      Set 'RESULT' to be the 'SSA' name created by 'GIMPLE_PHI' 'G'.
  
   -- GIMPLE function: struct phi_arg_d * gimple_phi_arg (gimple g, index)
!      Return the 'PHI' argument corresponding to incoming edge 'INDEX'
!      for 'GIMPLE_PHI' 'G'.
  
   -- GIMPLE function: void gimple_phi_set_arg (gphi *g, index, struct
            phi_arg_d * phiarg)
!      Set 'PHIARG' to be the argument corresponding to incoming edge
!      'INDEX' for 'GIMPLE_PHI' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_RESX,  Next: GIMPLE_RETURN,  Prev: GIMPLE_PHI,  Up: Tuple specific accessors
  
! 11.8.25 'GIMPLE_RESX'
  ---------------------
  
   -- GIMPLE function: gresx *gimple_build_resx (int region)
!      Build a 'GIMPLE_RESX' statement which is a statement.  This
       statement is a placeholder for _Unwind_Resume before we know if a
!      function call or a branch is needed.  'REGION' is the exception
       region from which control is flowing.
  
   -- GIMPLE function: int gimple_resx_region (const gresx *g)
!      Return the region number for 'GIMPLE_RESX' 'G'.
  
   -- GIMPLE function: void gimple_resx_set_region (gresx *g, int region)
!      Set 'REGION' to be the region number for 'GIMPLE_RESX' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_RETURN,  Next: GIMPLE_SWITCH,  Prev: GIMPLE_RESX,  Up: Tuple specific accessors
  
! 11.8.26 'GIMPLE_RETURN'
  -----------------------
  
   -- GIMPLE function: greturn *gimple_build_return (tree retval)
!      Build a 'GIMPLE_RETURN' statement whose return value is retval.
  
   -- GIMPLE function: tree gimple_return_retval (const greturn *g)
!      Return the return value for 'GIMPLE_RETURN' 'G'.
  
   -- GIMPLE function: void gimple_return_set_retval (greturn *g, tree
            retval)
!      Set 'RETVAL' to be the return value for 'GIMPLE_RETURN' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_SWITCH,  Next: GIMPLE_TRY,  Prev: GIMPLE_RETURN,  Up: Tuple specific accessors
  
! 11.8.27 'GIMPLE_SWITCH'
  -----------------------
  
   -- GIMPLE function: gswitch *gimple_build_switch (tree index, tree
!           default_label, 'vec'<tree> *args)
!      Build a 'GIMPLE_SWITCH' statement.  'INDEX' is the index variable
!      to switch on, and 'DEFAULT_LABEL' represents the default label.
!      'ARGS' is a vector of 'CASE_LABEL_EXPR' trees that contain the
       non-default case labels.  Each label is a tree of code
!      'CASE_LABEL_EXPR'.
  
   -- GIMPLE function: unsigned gimple_switch_num_labels ( const gswitch
            *g)
       Return the number of labels associated with the switch statement
!      'G'.
  
   -- GIMPLE function: void gimple_switch_set_num_labels (gswitch *g,
            unsigned nlabels)
!      Set 'NLABELS' to be the number of labels for the switch statement
!      'G'.
  
   -- GIMPLE function: tree gimple_switch_index (const gswitch *g)
!      Return the index variable used by the switch statement 'G'.
  
   -- GIMPLE function: void gimple_switch_set_index (gswitch *g, tree
            index)
!      Set 'INDEX' to be the index variable for switch statement 'G'.
  
   -- GIMPLE function: tree gimple_switch_label (const gswitch *g,
            unsigned index)
!      Return the label numbered 'INDEX'.  The default label is 0,
!      followed by any labels in a switch statement.
  
   -- GIMPLE function: void gimple_switch_set_label (gswitch *g, unsigned
            index, tree label)
!      Set the label number 'INDEX' to 'LABEL'.  0 is always the default
       label.
  
   -- GIMPLE function: tree gimple_switch_default_label ( const gswitch
*************** File: gccint.info,  Node: `GIMPLE_SWITCH
*** 12760,12830 ****
       Set the default label for a switch statement.
  
  
! File: gccint.info,  Node: `GIMPLE_TRY',  Next: `GIMPLE_WITH_CLEANUP_EXPR',  Prev: `GIMPLE_SWITCH',  Up: Tuple specific accessors
  
! 11.8.28 `GIMPLE_TRY'
  --------------------
  
!  -- GIMPLE function: gtry *gimple_build_try (gimple_seq eval,
!           gimple_seq cleanup, unsigned int kind)
!      Build a `GIMPLE_TRY' statement.  `EVAL' is a sequence with the
!      expression to evaluate.  `CLEANUP' is a sequence of statements to
!      run at clean-up time.  `KIND' is the enumeration value
!      `GIMPLE_TRY_CATCH' if this statement denotes a try/catch construct
!      or `GIMPLE_TRY_FINALLY' if this statement denotes a try/finally
       construct.
  
   -- GIMPLE function: enum gimple_try_flags gimple_try_kind (gimple g)
!      Return the kind of try block represented by `GIMPLE_TRY' `G'. This
!      is either `GIMPLE_TRY_CATCH' or `GIMPLE_TRY_FINALLY'.
  
   -- GIMPLE function: bool gimple_try_catch_is_cleanup (gimple g)
!      Return the `GIMPLE_TRY_CATCH_IS_CLEANUP' flag.
  
   -- GIMPLE function: gimple_seq gimple_try_eval (gimple g)
!      Return the sequence of statements used as the body for `GIMPLE_TRY'
!      `G'.
  
   -- GIMPLE function: gimple_seq gimple_try_cleanup (gimple g)
       Return the sequence of statements used as the cleanup body for
!      `GIMPLE_TRY' `G'.
  
   -- GIMPLE function: void gimple_try_set_catch_is_cleanup (gimple g,
            bool catch_is_cleanup)
!      Set the `GIMPLE_TRY_CATCH_IS_CLEANUP' flag.
  
   -- GIMPLE function: void gimple_try_set_eval (gtry *g, gimple_seq eval)
!      Set `EVAL' to be the sequence of statements to use as the body for
!      `GIMPLE_TRY' `G'.
  
   -- GIMPLE function: void gimple_try_set_cleanup (gtry *g, gimple_seq
            cleanup)
!      Set `CLEANUP' to be the sequence of statements to use as the
!      cleanup body for `GIMPLE_TRY' `G'.
  
  
! File: gccint.info,  Node: `GIMPLE_WITH_CLEANUP_EXPR',  Prev: `GIMPLE_TRY',  Up: Tuple specific accessors
  
! 11.8.29 `GIMPLE_WITH_CLEANUP_EXPR'
  ----------------------------------
  
   -- GIMPLE function: gimple gimple_build_wce (gimple_seq cleanup)
!      Build a `GIMPLE_WITH_CLEANUP_EXPR' statement.  `CLEANUP' is the
       clean-up expression.
  
   -- GIMPLE function: gimple_seq gimple_wce_cleanup (gimple g)
!      Return the cleanup sequence for cleanup statement `G'.
  
   -- GIMPLE function: void gimple_wce_set_cleanup (gimple g, gimple_seq
            cleanup)
!      Set `CLEANUP' to be the cleanup sequence for `G'.
  
   -- GIMPLE function: bool gimple_wce_cleanup_eh_only (gimple g)
!      Return the `CLEANUP_EH_ONLY' flag for a `WCE' tuple.
  
!  -- GIMPLE function: void gimple_wce_set_cleanup_eh_only (gimple g,
!           bool eh_only_p)
!      Set the `CLEANUP_EH_ONLY' flag for a `WCE' tuple.
  
  
  File: gccint.info,  Node: GIMPLE sequences,  Next: Sequence iterators,  Prev: Tuple specific accessors,  Up: GIMPLE
--- 12621,12691 ----
       Set the default label for a switch statement.
  
  
! File: gccint.info,  Node: GIMPLE_TRY,  Next: GIMPLE_WITH_CLEANUP_EXPR,  Prev: GIMPLE_SWITCH,  Up: Tuple specific accessors
  
! 11.8.28 'GIMPLE_TRY'
  --------------------
  
!  -- GIMPLE function: gtry *gimple_build_try (gimple_seq eval, gimple_seq
!           cleanup, unsigned int kind)
!      Build a 'GIMPLE_TRY' statement.  'EVAL' is a sequence with the
!      expression to evaluate.  'CLEANUP' is a sequence of statements to
!      run at clean-up time.  'KIND' is the enumeration value
!      'GIMPLE_TRY_CATCH' if this statement denotes a try/catch construct
!      or 'GIMPLE_TRY_FINALLY' if this statement denotes a try/finally
       construct.
  
   -- GIMPLE function: enum gimple_try_flags gimple_try_kind (gimple g)
!      Return the kind of try block represented by 'GIMPLE_TRY' 'G'.  This
!      is either 'GIMPLE_TRY_CATCH' or 'GIMPLE_TRY_FINALLY'.
  
   -- GIMPLE function: bool gimple_try_catch_is_cleanup (gimple g)
!      Return the 'GIMPLE_TRY_CATCH_IS_CLEANUP' flag.
  
   -- GIMPLE function: gimple_seq gimple_try_eval (gimple g)
!      Return the sequence of statements used as the body for 'GIMPLE_TRY'
!      'G'.
  
   -- GIMPLE function: gimple_seq gimple_try_cleanup (gimple g)
       Return the sequence of statements used as the cleanup body for
!      'GIMPLE_TRY' 'G'.
  
   -- GIMPLE function: void gimple_try_set_catch_is_cleanup (gimple g,
            bool catch_is_cleanup)
!      Set the 'GIMPLE_TRY_CATCH_IS_CLEANUP' flag.
  
   -- GIMPLE function: void gimple_try_set_eval (gtry *g, gimple_seq eval)
!      Set 'EVAL' to be the sequence of statements to use as the body for
!      'GIMPLE_TRY' 'G'.
  
   -- GIMPLE function: void gimple_try_set_cleanup (gtry *g, gimple_seq
            cleanup)
!      Set 'CLEANUP' to be the sequence of statements to use as the
!      cleanup body for 'GIMPLE_TRY' 'G'.
  
  
! File: gccint.info,  Node: GIMPLE_WITH_CLEANUP_EXPR,  Prev: GIMPLE_TRY,  Up: Tuple specific accessors
  
! 11.8.29 'GIMPLE_WITH_CLEANUP_EXPR'
  ----------------------------------
  
   -- GIMPLE function: gimple gimple_build_wce (gimple_seq cleanup)
!      Build a 'GIMPLE_WITH_CLEANUP_EXPR' statement.  'CLEANUP' is the
       clean-up expression.
  
   -- GIMPLE function: gimple_seq gimple_wce_cleanup (gimple g)
!      Return the cleanup sequence for cleanup statement 'G'.
  
   -- GIMPLE function: void gimple_wce_set_cleanup (gimple g, gimple_seq
            cleanup)
!      Set 'CLEANUP' to be the cleanup sequence for 'G'.
  
   -- GIMPLE function: bool gimple_wce_cleanup_eh_only (gimple g)
!      Return the 'CLEANUP_EH_ONLY' flag for a 'WCE' tuple.
  
!  -- GIMPLE function: void gimple_wce_set_cleanup_eh_only (gimple g, bool
!           eh_only_p)
!      Set the 'CLEANUP_EH_ONLY' flag for a 'WCE' tuple.
  
  
  File: gccint.info,  Node: GIMPLE sequences,  Next: Sequence iterators,  Prev: Tuple specific accessors,  Up: GIMPLE
*************** File: gccint.info,  Node: GIMPLE sequenc
*** 12832,12849 ****
  11.9 GIMPLE sequences
  =====================
  
! GIMPLE sequences are the tuple equivalent of `STATEMENT_LIST''s used in
! `GENERIC'.  They are used to chain statements together, and when used
! in conjunction with sequence iterators, provide a framework for
! iterating through statements.
  
!  GIMPLE sequences are of type struct `gimple_sequence', but are more
  commonly passed by reference to functions dealing with sequences.  The
! type for a sequence pointer is `gimple_seq' which is the same as struct
! `gimple_sequence' *.  When declaring a local sequence, you can define a
! local variable of type struct `gimple_sequence'.  When declaring a
  sequence allocated on the garbage collected heap, use the function
! `gimple_seq_alloc' documented below.
  
   There are convenience functions for iterating through sequences in the
  section entitled Sequence Iterators.
--- 12693,12710 ----
  11.9 GIMPLE sequences
  =====================
  
! GIMPLE sequences are the tuple equivalent of 'STATEMENT_LIST''s used in
! 'GENERIC'.  They are used to chain statements together, and when used in
! conjunction with sequence iterators, provide a framework for iterating
! through statements.
  
!  GIMPLE sequences are of type struct 'gimple_sequence', but are more
  commonly passed by reference to functions dealing with sequences.  The
! type for a sequence pointer is 'gimple_seq' which is the same as struct
! 'gimple_sequence' *.  When declaring a local sequence, you can define a
! local variable of type struct 'gimple_sequence'.  When declaring a
  sequence allocated on the garbage collected heap, use the function
! 'gimple_seq_alloc' documented below.
  
   There are convenience functions for iterating through sequences in the
  section entitled Sequence Iterators.
*************** section entitled Sequence Iterators.
*** 12852,12891 ****
  
   -- GIMPLE function: void gimple_seq_add_stmt (gimple_seq *seq, gimple
            g)
!      Link a gimple statement to the end of the sequence *`SEQ' if `G' is
!      not `NULL'.  If *`SEQ' is `NULL', allocate a sequence before
       linking.
  
   -- GIMPLE function: void gimple_seq_add_seq (gimple_seq *dest,
            gimple_seq src)
!      Append sequence `SRC' to the end of sequence *`DEST' if `SRC' is
!      not `NULL'.  If *`DEST' is `NULL', allocate a new sequence before
       appending.
  
   -- GIMPLE function: gimple_seq gimple_seq_deep_copy (gimple_seq src)
!      Perform a deep copy of sequence `SRC' and return the result.
  
   -- GIMPLE function: gimple_seq gimple_seq_reverse (gimple_seq seq)
!      Reverse the order of the statements in the sequence `SEQ'.  Return
!      `SEQ'.
  
   -- GIMPLE function: gimple gimple_seq_first (gimple_seq s)
!      Return the first statement in sequence `S'.
  
   -- GIMPLE function: gimple gimple_seq_last (gimple_seq s)
!      Return the last statement in sequence `S'.
  
   -- GIMPLE function: void gimple_seq_set_last (gimple_seq s, gimple
            last)
!      Set the last statement in sequence `S' to the statement in `LAST'.
  
   -- GIMPLE function: void gimple_seq_set_first (gimple_seq s, gimple
            first)
!      Set the first statement in sequence `S' to the statement in
!      `FIRST'.
  
   -- GIMPLE function: void gimple_seq_init (gimple_seq s)
!      Initialize sequence `S' to an empty sequence.
  
   -- GIMPLE function: gimple_seq gimple_seq_alloc (void)
       Allocate a new sequence in the garbage collected store and return
--- 12713,12752 ----
  
   -- GIMPLE function: void gimple_seq_add_stmt (gimple_seq *seq, gimple
            g)
!      Link a gimple statement to the end of the sequence *'SEQ' if 'G' is
!      not 'NULL'.  If *'SEQ' is 'NULL', allocate a sequence before
       linking.
  
   -- GIMPLE function: void gimple_seq_add_seq (gimple_seq *dest,
            gimple_seq src)
!      Append sequence 'SRC' to the end of sequence *'DEST' if 'SRC' is
!      not 'NULL'.  If *'DEST' is 'NULL', allocate a new sequence before
       appending.
  
   -- GIMPLE function: gimple_seq gimple_seq_deep_copy (gimple_seq src)
!      Perform a deep copy of sequence 'SRC' and return the result.
  
   -- GIMPLE function: gimple_seq gimple_seq_reverse (gimple_seq seq)
!      Reverse the order of the statements in the sequence 'SEQ'.  Return
!      'SEQ'.
  
   -- GIMPLE function: gimple gimple_seq_first (gimple_seq s)
!      Return the first statement in sequence 'S'.
  
   -- GIMPLE function: gimple gimple_seq_last (gimple_seq s)
!      Return the last statement in sequence 'S'.
  
   -- GIMPLE function: void gimple_seq_set_last (gimple_seq s, gimple
            last)
!      Set the last statement in sequence 'S' to the statement in 'LAST'.
  
   -- GIMPLE function: void gimple_seq_set_first (gimple_seq s, gimple
            first)
!      Set the first statement in sequence 'S' to the statement in
!      'FIRST'.
  
   -- GIMPLE function: void gimple_seq_init (gimple_seq s)
!      Initialize sequence 'S' to an empty sequence.
  
   -- GIMPLE function: gimple_seq gimple_seq_alloc (void)
       Allocate a new sequence in the garbage collected store and return
*************** section entitled Sequence Iterators.
*** 12893,12911 ****
  
   -- GIMPLE function: void gimple_seq_copy (gimple_seq dest, gimple_seq
            src)
!      Copy the sequence `SRC' into the sequence `DEST'.
  
   -- GIMPLE function: bool gimple_seq_empty_p (gimple_seq s)
!      Return true if the sequence `S' is empty.
  
   -- GIMPLE function: gimple_seq bb_seq (basic_block bb)
!      Returns the sequence of statements in `BB'.
  
   -- GIMPLE function: void set_bb_seq (basic_block bb, gimple_seq seq)
!      Sets the sequence of statements in `BB' to `SEQ'.
  
   -- GIMPLE function: bool gimple_seq_singleton_p (gimple_seq seq)
!      Determine whether `SEQ' contains exactly one statement.
  
  
  File: gccint.info,  Node: Sequence iterators,  Next: Adding a new GIMPLE statement code,  Prev: GIMPLE sequences,  Up: GIMPLE
--- 12754,12772 ----
  
   -- GIMPLE function: void gimple_seq_copy (gimple_seq dest, gimple_seq
            src)
!      Copy the sequence 'SRC' into the sequence 'DEST'.
  
   -- GIMPLE function: bool gimple_seq_empty_p (gimple_seq s)
!      Return true if the sequence 'S' is empty.
  
   -- GIMPLE function: gimple_seq bb_seq (basic_block bb)
!      Returns the sequence of statements in 'BB'.
  
   -- GIMPLE function: void set_bb_seq (basic_block bb, gimple_seq seq)
!      Sets the sequence of statements in 'BB' to 'SEQ'.
  
   -- GIMPLE function: bool gimple_seq_singleton_p (gimple_seq seq)
!      Determine whether 'SEQ' contains exactly one statement.
  
  
  File: gccint.info,  Node: Sequence iterators,  Next: Adding a new GIMPLE statement code,  Prev: GIMPLE sequences,  Up: GIMPLE
*************** File: gccint.info,  Node: Sequence itera
*** 12914,12928 ****
  ========================
  
  Sequence iterators are convenience constructs for iterating through
! statements in a sequence.  Given a sequence `SEQ', here is a typical
! use of gimple sequence iterators:
  
       gimple_stmt_iterator gsi;
  
       for (gsi = gsi_start (seq); !gsi_end_p (gsi); gsi_next (&gsi))
         {
           gimple g = gsi_stmt (gsi);
!          /* Do something with gimple statement `G'.  */
         }
  
   Backward iterations are possible:
--- 12775,12789 ----
  ========================
  
  Sequence iterators are convenience constructs for iterating through
! statements in a sequence.  Given a sequence 'SEQ', here is a typical use
! of gimple sequence iterators:
  
       gimple_stmt_iterator gsi;
  
       for (gsi = gsi_start (seq); !gsi_end_p (gsi); gsi_next (&gsi))
         {
           gimple g = gsi_stmt (gsi);
!          /* Do something with gimple statement G.  */
         }
  
   Backward iterations are possible:
*************** use of gimple sequence iterators:
*** 12930,12976 ****
               for (gsi = gsi_last (seq); !gsi_end_p (gsi); gsi_prev (&gsi))
  
   Forward and backward iterations on basic blocks are possible with
! `gsi_start_bb' and `gsi_last_bb'.
  
   In the documentation below we sometimes refer to enum
! `gsi_iterator_update'.  The valid options for this enumeration are:
  
!    * `GSI_NEW_STMT' Only valid when a single statement is added.  Move
       the iterator to it.
  
!    * `GSI_SAME_STMT' Leave the iterator at the same statement.
  
!    * `GSI_CONTINUE_LINKING' Move iterator to whatever position is
       suitable for linking other statements in the same direction.
  
   Below is a list of the functions used to manipulate and use statement
  iterators.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_start (gimple_seq seq)
!      Return a new iterator pointing to the sequence `SEQ''s first
!      statement.  If `SEQ' is empty, the iterator's basic block is
!      `NULL'.  Use `gsi_start_bb' instead when the iterator needs to
       always have the correct basic block set.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_start_bb (basic_block bb)
       Return a new iterator pointing to the first statement in basic
!      block `BB'.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_last (gimple_seq seq)
       Return a new iterator initially pointing to the last statement of
!      sequence `SEQ'.  If `SEQ' is empty, the iterator's basic block is
!      `NULL'.  Use `gsi_last_bb' instead when the iterator needs to
       always have the correct basic block set.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_last_bb (basic_block bb)
!      Return a new iterator pointing to the last statement in basic
!      block `BB'.
  
   -- GIMPLE function: bool gsi_end_p (gimple_stmt_iterator i)
!      Return `TRUE' if at the end of `I'.
  
   -- GIMPLE function: bool gsi_one_before_end_p (gimple_stmt_iterator i)
!      Return `TRUE' if we're one statement before the end of `I'.
  
   -- GIMPLE function: void gsi_next (gimple_stmt_iterator *i)
       Advance the iterator to the next gimple statement.
--- 12791,12837 ----
               for (gsi = gsi_last (seq); !gsi_end_p (gsi); gsi_prev (&gsi))
  
   Forward and backward iterations on basic blocks are possible with
! 'gsi_start_bb' and 'gsi_last_bb'.
  
   In the documentation below we sometimes refer to enum
! 'gsi_iterator_update'.  The valid options for this enumeration are:
  
!    * 'GSI_NEW_STMT' Only valid when a single statement is added.  Move
       the iterator to it.
  
!    * 'GSI_SAME_STMT' Leave the iterator at the same statement.
  
!    * 'GSI_CONTINUE_LINKING' Move iterator to whatever position is
       suitable for linking other statements in the same direction.
  
   Below is a list of the functions used to manipulate and use statement
  iterators.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_start (gimple_seq seq)
!      Return a new iterator pointing to the sequence 'SEQ''s first
!      statement.  If 'SEQ' is empty, the iterator's basic block is
!      'NULL'.  Use 'gsi_start_bb' instead when the iterator needs to
       always have the correct basic block set.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_start_bb (basic_block bb)
       Return a new iterator pointing to the first statement in basic
!      block 'BB'.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_last (gimple_seq seq)
       Return a new iterator initially pointing to the last statement of
!      sequence 'SEQ'.  If 'SEQ' is empty, the iterator's basic block is
!      'NULL'.  Use 'gsi_last_bb' instead when the iterator needs to
       always have the correct basic block set.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_last_bb (basic_block bb)
!      Return a new iterator pointing to the last statement in basic block
!      'BB'.
  
   -- GIMPLE function: bool gsi_end_p (gimple_stmt_iterator i)
!      Return 'TRUE' if at the end of 'I'.
  
   -- GIMPLE function: bool gsi_one_before_end_p (gimple_stmt_iterator i)
!      Return 'TRUE' if we're one statement before the end of 'I'.
  
   -- GIMPLE function: void gsi_next (gimple_stmt_iterator *i)
       Advance the iterator to the next gimple statement.
*************** iterators.
*** 12984,12990 ****
   -- GIMPLE function: gimple_stmt_iterator gsi_after_labels (basic_block
            bb)
       Return a block statement iterator that points to the first
!      non-label statement in block `BB'.
  
   -- GIMPLE function: gimple * gsi_stmt_ptr (gimple_stmt_iterator *i)
       Return a pointer to the current stmt.
--- 12845,12851 ----
   -- GIMPLE function: gimple_stmt_iterator gsi_after_labels (basic_block
            bb)
       Return a block statement iterator that points to the first
!      non-label statement in block 'BB'.
  
   -- GIMPLE function: gimple * gsi_stmt_ptr (gimple_stmt_iterator *i)
       Return a pointer to the current stmt.
*************** iterators.
*** 12997,13104 ****
  
   -- GIMPLE function: void gsi_remove (gimple_stmt_iterator *i, bool
            remove_eh_info)
!      Remove the current stmt from the sequence.  The iterator is
!      updated to point to the next statement.  When `REMOVE_EH_INFO' is
!      true we remove the statement pointed to by iterator `I' from the
!      `EH' tables.  Otherwise we do not modify the `EH' tables.
!      Generally, `REMOVE_EH_INFO' should be true when the statement is
!      going to be removed from the `IL' and not reinserted elsewhere.
  
   -- GIMPLE function: void gsi_link_seq_before (gimple_stmt_iterator *i,
            gimple_seq seq, enum gsi_iterator_update mode)
!      Links the sequence of statements `SEQ' before the statement pointed
!      by iterator `I'.  `MODE' indicates what to do with the iterator
!      after insertion (see `enum gsi_iterator_update' above).
  
   -- GIMPLE function: void gsi_link_before (gimple_stmt_iterator *i,
            gimple g, enum gsi_iterator_update mode)
!      Links statement `G' before the statement pointed-to by iterator
!      `I'.  Updates iterator `I' according to `MODE'.
  
   -- GIMPLE function: void gsi_link_seq_after (gimple_stmt_iterator *i,
            gimple_seq seq, enum gsi_iterator_update mode)
!      Links sequence `SEQ' after the statement pointed-to by iterator
!      `I'.  `MODE' is as in `gsi_insert_after'.
  
   -- GIMPLE function: void gsi_link_after (gimple_stmt_iterator *i,
            gimple g, enum gsi_iterator_update mode)
!      Links statement `G' after the statement pointed-to by iterator `I'.
!      `MODE' is as in `gsi_insert_after'.
  
   -- GIMPLE function: gimple_seq gsi_split_seq_after
            (gimple_stmt_iterator i)
!      Move all statements in the sequence after `I' to a new sequence.
       Return this new sequence.
  
   -- GIMPLE function: gimple_seq gsi_split_seq_before
            (gimple_stmt_iterator *i)
!      Move all statements in the sequence before `I' to a new sequence.
       Return this new sequence.
  
   -- GIMPLE function: void gsi_replace (gimple_stmt_iterator *i, gimple
            stmt, bool update_eh_info)
!      Replace the statement pointed-to by `I' to `STMT'.  If
!      `UPDATE_EH_INFO' is true, the exception handling information of
!      the original statement is moved to the new statement.
  
   -- GIMPLE function: void gsi_insert_before (gimple_stmt_iterator *i,
            gimple stmt, enum gsi_iterator_update mode)
!      Insert statement `STMT' before the statement pointed-to by iterator
!      `I', update `STMT''s basic block and scan it for new operands.
!      `MODE' specifies how to update iterator `I' after insertion (see
!      enum `gsi_iterator_update').
  
   -- GIMPLE function: void gsi_insert_seq_before (gimple_stmt_iterator
            *i, gimple_seq seq, enum gsi_iterator_update mode)
!      Like `gsi_insert_before', but for all the statements in `SEQ'.
  
   -- GIMPLE function: void gsi_insert_after (gimple_stmt_iterator *i,
            gimple stmt, enum gsi_iterator_update mode)
!      Insert statement `STMT' after the statement pointed-to by iterator
!      `I', update `STMT''s basic block and scan it for new operands.
!      `MODE' specifies how to update iterator `I' after insertion (see
!      enum `gsi_iterator_update').
  
!  -- GIMPLE function: void gsi_insert_seq_after (gimple_stmt_iterator
!           *i, gimple_seq seq, enum gsi_iterator_update mode)
!      Like `gsi_insert_after', but for all the statements in `SEQ'.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_for_stmt (gimple stmt)
!      Finds iterator for `STMT'.
  
   -- GIMPLE function: void gsi_move_after (gimple_stmt_iterator *from,
            gimple_stmt_iterator *to)
!      Move the statement at `FROM' so it comes right after the statement
!      at `TO'.
  
   -- GIMPLE function: void gsi_move_before (gimple_stmt_iterator *from,
            gimple_stmt_iterator *to)
!      Move the statement at `FROM' so it comes right before the statement
!      at `TO'.
  
   -- GIMPLE function: void gsi_move_to_bb_end (gimple_stmt_iterator
            *from, basic_block bb)
!      Move the statement at `FROM' to the end of basic block `BB'.
  
   -- GIMPLE function: void gsi_insert_on_edge (edge e, gimple stmt)
!      Add `STMT' to the pending list of edge `E'.  No actual insertion is
!      made until a call to `gsi_commit_edge_inserts'() is made.
  
   -- GIMPLE function: void gsi_insert_seq_on_edge (edge e, gimple_seq
            seq)
!      Add the sequence of statements in `SEQ' to the pending list of edge
!      `E'.  No actual insertion is made until a call to
!      `gsi_commit_edge_inserts'() is made.
  
   -- GIMPLE function: basic_block gsi_insert_on_edge_immediate (edge e,
            gimple stmt)
!      Similar to `gsi_insert_on_edge'+`gsi_commit_edge_inserts'.  If a
       new block has to be created, it is returned.
  
   -- GIMPLE function: void gsi_commit_one_edge_insert (edge e,
            basic_block *new_bb)
!      Commit insertions pending at edge `E'.  If a new block is created,
!      set `NEW_BB' to this block, otherwise set it to `NULL'.
  
   -- GIMPLE function: void gsi_commit_edge_inserts (void)
       This routine will commit all pending edge insertions, creating any
--- 12858,12965 ----
  
   -- GIMPLE function: void gsi_remove (gimple_stmt_iterator *i, bool
            remove_eh_info)
!      Remove the current stmt from the sequence.  The iterator is updated
!      to point to the next statement.  When 'REMOVE_EH_INFO' is true we
!      remove the statement pointed to by iterator 'I' from the 'EH'
!      tables.  Otherwise we do not modify the 'EH' tables.  Generally,
!      'REMOVE_EH_INFO' should be true when the statement is going to be
!      removed from the 'IL' and not reinserted elsewhere.
  
   -- GIMPLE function: void gsi_link_seq_before (gimple_stmt_iterator *i,
            gimple_seq seq, enum gsi_iterator_update mode)
!      Links the sequence of statements 'SEQ' before the statement pointed
!      by iterator 'I'.  'MODE' indicates what to do with the iterator
!      after insertion (see 'enum gsi_iterator_update' above).
  
   -- GIMPLE function: void gsi_link_before (gimple_stmt_iterator *i,
            gimple g, enum gsi_iterator_update mode)
!      Links statement 'G' before the statement pointed-to by iterator
!      'I'.  Updates iterator 'I' according to 'MODE'.
  
   -- GIMPLE function: void gsi_link_seq_after (gimple_stmt_iterator *i,
            gimple_seq seq, enum gsi_iterator_update mode)
!      Links sequence 'SEQ' after the statement pointed-to by iterator
!      'I'.  'MODE' is as in 'gsi_insert_after'.
  
   -- GIMPLE function: void gsi_link_after (gimple_stmt_iterator *i,
            gimple g, enum gsi_iterator_update mode)
!      Links statement 'G' after the statement pointed-to by iterator 'I'.
!      'MODE' is as in 'gsi_insert_after'.
  
   -- GIMPLE function: gimple_seq gsi_split_seq_after
            (gimple_stmt_iterator i)
!      Move all statements in the sequence after 'I' to a new sequence.
       Return this new sequence.
  
   -- GIMPLE function: gimple_seq gsi_split_seq_before
            (gimple_stmt_iterator *i)
!      Move all statements in the sequence before 'I' to a new sequence.
       Return this new sequence.
  
   -- GIMPLE function: void gsi_replace (gimple_stmt_iterator *i, gimple
            stmt, bool update_eh_info)
!      Replace the statement pointed-to by 'I' to 'STMT'.  If
!      'UPDATE_EH_INFO' is true, the exception handling information of the
!      original statement is moved to the new statement.
  
   -- GIMPLE function: void gsi_insert_before (gimple_stmt_iterator *i,
            gimple stmt, enum gsi_iterator_update mode)
!      Insert statement 'STMT' before the statement pointed-to by iterator
!      'I', update 'STMT''s basic block and scan it for new operands.
!      'MODE' specifies how to update iterator 'I' after insertion (see
!      enum 'gsi_iterator_update').
  
   -- GIMPLE function: void gsi_insert_seq_before (gimple_stmt_iterator
            *i, gimple_seq seq, enum gsi_iterator_update mode)
!      Like 'gsi_insert_before', but for all the statements in 'SEQ'.
  
   -- GIMPLE function: void gsi_insert_after (gimple_stmt_iterator *i,
            gimple stmt, enum gsi_iterator_update mode)
!      Insert statement 'STMT' after the statement pointed-to by iterator
!      'I', update 'STMT''s basic block and scan it for new operands.
!      'MODE' specifies how to update iterator 'I' after insertion (see
!      enum 'gsi_iterator_update').
  
!  -- GIMPLE function: void gsi_insert_seq_after (gimple_stmt_iterator *i,
!           gimple_seq seq, enum gsi_iterator_update mode)
!      Like 'gsi_insert_after', but for all the statements in 'SEQ'.
  
   -- GIMPLE function: gimple_stmt_iterator gsi_for_stmt (gimple stmt)
!      Finds iterator for 'STMT'.
  
   -- GIMPLE function: void gsi_move_after (gimple_stmt_iterator *from,
            gimple_stmt_iterator *to)
!      Move the statement at 'FROM' so it comes right after the statement
!      at 'TO'.
  
   -- GIMPLE function: void gsi_move_before (gimple_stmt_iterator *from,
            gimple_stmt_iterator *to)
!      Move the statement at 'FROM' so it comes right before the statement
!      at 'TO'.
  
   -- GIMPLE function: void gsi_move_to_bb_end (gimple_stmt_iterator
            *from, basic_block bb)
!      Move the statement at 'FROM' to the end of basic block 'BB'.
  
   -- GIMPLE function: void gsi_insert_on_edge (edge e, gimple stmt)
!      Add 'STMT' to the pending list of edge 'E'.  No actual insertion is
!      made until a call to 'gsi_commit_edge_inserts'() is made.
  
   -- GIMPLE function: void gsi_insert_seq_on_edge (edge e, gimple_seq
            seq)
!      Add the sequence of statements in 'SEQ' to the pending list of edge
!      'E'.  No actual insertion is made until a call to
!      'gsi_commit_edge_inserts'() is made.
  
   -- GIMPLE function: basic_block gsi_insert_on_edge_immediate (edge e,
            gimple stmt)
!      Similar to 'gsi_insert_on_edge'+'gsi_commit_edge_inserts'.  If a
       new block has to be created, it is returned.
  
   -- GIMPLE function: void gsi_commit_one_edge_insert (edge e,
            basic_block *new_bb)
!      Commit insertions pending at edge 'E'.  If a new block is created,
!      set 'NEW_BB' to this block, otherwise set it to 'NULL'.
  
   -- GIMPLE function: void gsi_commit_edge_inserts (void)
       This routine will commit all pending edge insertions, creating any
*************** File: gccint.info,  Node: Adding a new G
*** 13111,13138 ****
  ========================================
  
  The first step in adding a new GIMPLE statement code, is modifying the
! file `gimple.def', which contains all the GIMPLE codes.  Then you must
! add a corresponding gimple subclass located in `gimple.h'.  This in
! turn, will require you to add a corresponding `GTY' tag in
! `gsstruct.def', and code to handle this tag in `gss_for_code' which is
! located in `gimple.c'.
  
   In order for the garbage collector to know the size of the structure
! you created in `gimple.h', you need to add a case to handle your new
! GIMPLE statement in `gimple_size' which is located in `gimple.c'.
  
   You will probably want to create a function to build the new gimple
! statement in `gimple.c'.  The function should be called
! `gimple_build_NEW-TUPLE-NAME', and should return the new tuple as a
  pointer to the appropriate gimple subclass.
  
!  If your new statement requires accessors for any members or operands
! it may have, put simple inline accessors in `gimple.h' and any
! non-trivial accessors in `gimple.c' with a corresponding prototype in
! `gimple.h'.
  
   You should add the new statement subclass to the class hierarchy
! diagram in `gimple.texi'.
  
  
  File: gccint.info,  Node: Statement and operand traversals,  Prev: Adding a new GIMPLE statement code,  Up: GIMPLE
--- 12972,12998 ----
  ========================================
  
  The first step in adding a new GIMPLE statement code, is modifying the
! file 'gimple.def', which contains all the GIMPLE codes.  Then you must
! add a corresponding gimple subclass located in 'gimple.h'.  This in
! turn, will require you to add a corresponding 'GTY' tag in
! 'gsstruct.def', and code to handle this tag in 'gss_for_code' which is
! located in 'gimple.c'.
  
   In order for the garbage collector to know the size of the structure
! you created in 'gimple.h', you need to add a case to handle your new
! GIMPLE statement in 'gimple_size' which is located in 'gimple.c'.
  
   You will probably want to create a function to build the new gimple
! statement in 'gimple.c'.  The function should be called
! 'gimple_build_NEW-TUPLE-NAME', and should return the new tuple as a
  pointer to the appropriate gimple subclass.
  
!  If your new statement requires accessors for any members or operands it
! may have, put simple inline accessors in 'gimple.h' and any non-trivial
! accessors in 'gimple.c' with a corresponding prototype in 'gimple.h'.
  
   You should add the new statement subclass to the class hierarchy
! diagram in 'gimple.texi'.
  
  
  File: gccint.info,  Node: Statement and operand traversals,  Prev: Adding a new GIMPLE statement code,  Up: GIMPLE
*************** File: gccint.info,  Node: Statement and
*** 13141,13194 ****
  ======================================
  
  There are two functions available for walking statements and sequences:
! `walk_gimple_stmt' and `walk_gimple_seq', accordingly, and a third
! function for walking the operands in a statement: `walk_gimple_op'.
  
   -- GIMPLE function: tree walk_gimple_stmt (gimple_stmt_iterator *gsi,
            walk_stmt_fn callback_stmt, walk_tree_fn callback_op, struct
            walk_stmt_info *wi)
!      This function is used to walk the current statement in `GSI',
!      optionally using traversal state stored in `WI'.  If `WI' is
!      `NULL', no state is kept during the traversal.
  
!      The callback `CALLBACK_STMT' is called.  If `CALLBACK_STMT' returns
       true, it means that the callback function has handled all the
       operands of the statement and it is not necessary to walk its
       operands.
  
!      If `CALLBACK_STMT' is `NULL' or it returns false, `CALLBACK_OP' is
!      called on each operand of the statement via `walk_gimple_op'.  If
!      `walk_gimple_op' returns non-`NULL' for any operand, the remaining
       operands are not scanned.
  
       The return value is that returned by the last call to
!      `walk_gimple_op', or `NULL_TREE' if no `CALLBACK_OP' is specified.
  
   -- GIMPLE function: tree walk_gimple_op (gimple stmt, walk_tree_fn
            callback_op, struct walk_stmt_info *wi)
!      Use this function to walk the operands of statement `STMT'.  Every
!      operand is walked via `walk_tree' with optional state information
!      in `WI'.
  
!      `CALLBACK_OP' is called on each operand of `STMT' via `walk_tree'.
!      Additional parameters to `walk_tree' must be stored in `WI'.  For
!      each operand `OP', `walk_tree' is called as:
  
!           walk_tree (&`OP', `CALLBACK_OP', `WI', `PSET')
  
!      If `CALLBACK_OP' returns non-`NULL' for an operand, the remaining
!      operands are not scanned.  The return value is that returned by
!      the last call to `walk_tree', or `NULL_TREE' if no `CALLBACK_OP' is
       specified.
  
   -- GIMPLE function: tree walk_gimple_seq (gimple_seq seq, walk_stmt_fn
!           callback_stmt, walk_tree_fn callback_op, struct
!           walk_stmt_info *wi)
!      This function walks all the statements in the sequence `SEQ'
!      calling `walk_gimple_stmt' on each one.  `WI' is as in
!      `walk_gimple_stmt'.  If `walk_gimple_stmt' returns non-`NULL', the
       walk is stopped and the value returned.  Otherwise, all the
!      statements are walked and `NULL_TREE' returned.
  
  
  File: gccint.info,  Node: Tree SSA,  Next: RTL,  Prev: GIMPLE,  Up: Top
--- 13001,13054 ----
  ======================================
  
  There are two functions available for walking statements and sequences:
! 'walk_gimple_stmt' and 'walk_gimple_seq', accordingly, and a third
! function for walking the operands in a statement: 'walk_gimple_op'.
  
   -- GIMPLE function: tree walk_gimple_stmt (gimple_stmt_iterator *gsi,
            walk_stmt_fn callback_stmt, walk_tree_fn callback_op, struct
            walk_stmt_info *wi)
!      This function is used to walk the current statement in 'GSI',
!      optionally using traversal state stored in 'WI'.  If 'WI' is
!      'NULL', no state is kept during the traversal.
  
!      The callback 'CALLBACK_STMT' is called.  If 'CALLBACK_STMT' returns
       true, it means that the callback function has handled all the
       operands of the statement and it is not necessary to walk its
       operands.
  
!      If 'CALLBACK_STMT' is 'NULL' or it returns false, 'CALLBACK_OP' is
!      called on each operand of the statement via 'walk_gimple_op'.  If
!      'walk_gimple_op' returns non-'NULL' for any operand, the remaining
       operands are not scanned.
  
       The return value is that returned by the last call to
!      'walk_gimple_op', or 'NULL_TREE' if no 'CALLBACK_OP' is specified.
  
   -- GIMPLE function: tree walk_gimple_op (gimple stmt, walk_tree_fn
            callback_op, struct walk_stmt_info *wi)
!      Use this function to walk the operands of statement 'STMT'.  Every
!      operand is walked via 'walk_tree' with optional state information
!      in 'WI'.
  
!      'CALLBACK_OP' is called on each operand of 'STMT' via 'walk_tree'.
!      Additional parameters to 'walk_tree' must be stored in 'WI'.  For
!      each operand 'OP', 'walk_tree' is called as:
  
!           walk_tree (&OP, CALLBACK_OP, WI, PSET)
  
!      If 'CALLBACK_OP' returns non-'NULL' for an operand, the remaining
!      operands are not scanned.  The return value is that returned by the
!      last call to 'walk_tree', or 'NULL_TREE' if no 'CALLBACK_OP' is
       specified.
  
   -- GIMPLE function: tree walk_gimple_seq (gimple_seq seq, walk_stmt_fn
!           callback_stmt, walk_tree_fn callback_op, struct walk_stmt_info
!           *wi)
!      This function walks all the statements in the sequence 'SEQ'
!      calling 'walk_gimple_stmt' on each one.  'WI' is as in
!      'walk_gimple_stmt'.  If 'walk_gimple_stmt' returns non-'NULL', the
       walk is stopped and the value returned.  Otherwise, all the
!      statements are walked and 'NULL_TREE' returned.
  
  
  File: gccint.info,  Node: Tree SSA,  Next: RTL,  Prev: GIMPLE,  Up: Top
*************** File: gccint.info,  Node: Tree SSA,  Nex
*** 13199,13223 ****
  GCC uses three main intermediate languages to represent the program
  during compilation: GENERIC, GIMPLE and RTL.  GENERIC is a
  language-independent representation generated by each front end.  It is
! used to serve as an interface between the parser and optimizer.
! GENERIC is a common representation that is able to represent programs
! written in all the languages supported by GCC.
  
   GIMPLE and RTL are used to optimize the program.  GIMPLE is used for
  target and language independent optimizations (e.g., inlining, constant
  propagation, tail call elimination, redundancy elimination, etc).  Much
  like GENERIC, GIMPLE is a language independent, tree based
  representation.  However, it differs from GENERIC in that the GIMPLE
! grammar is more restrictive: expressions contain no more than 3
! operands (except function calls), it has no control flow structures and
! expressions with side-effects are only allowed on the right hand side
! of assignments.  See the chapter describing GENERIC and GIMPLE for more
  details.
  
   This chapter describes the data structures and functions used in the
! GIMPLE optimizers (also known as "tree optimizers" or "middle end").
! In particular, it focuses on all the macros, data structures, functions
! and programming constructs needed to implement optimization passes for
  GIMPLE.
  
  * Menu:
--- 13059,13083 ----
  GCC uses three main intermediate languages to represent the program
  during compilation: GENERIC, GIMPLE and RTL.  GENERIC is a
  language-independent representation generated by each front end.  It is
! used to serve as an interface between the parser and optimizer.  GENERIC
! is a common representation that is able to represent programs written in
! all the languages supported by GCC.
  
   GIMPLE and RTL are used to optimize the program.  GIMPLE is used for
  target and language independent optimizations (e.g., inlining, constant
  propagation, tail call elimination, redundancy elimination, etc).  Much
  like GENERIC, GIMPLE is a language independent, tree based
  representation.  However, it differs from GENERIC in that the GIMPLE
! grammar is more restrictive: expressions contain no more than 3 operands
! (except function calls), it has no control flow structures and
! expressions with side-effects are only allowed on the right hand side of
! assignments.  See the chapter describing GENERIC and GIMPLE for more
  details.
  
   This chapter describes the data structures and functions used in the
! GIMPLE optimizers (also known as "tree optimizers" or "middle end").  In
! particular, it focuses on all the macros, data structures, functions and
! programming constructs needed to implement optimization passes for
  GIMPLE.
  
  * Menu:
*************** File: gccint.info,  Node: Annotations,
*** 13237,13243 ****
  The optimizers need to associate attributes with variables during the
  optimization process.  For instance, we need to know whether a variable
  has aliases.  All these attributes are stored in data structures called
! annotations which are then linked to the field `ann' in `struct
  tree_common'.
  
  
--- 13097,13103 ----
  The optimizers need to associate attributes with variables during the
  optimization process.  For instance, we need to know whether a variable
  has aliases.  All these attributes are stored in data structures called
! annotations which are then linked to the field 'ann' in 'struct
  tree_common'.
  
  
*************** their operands are going to be located a
*** 13252,13294 ****
  statement's tree.  To facilitate access to the statement's operands,
  they are organized into lists associated inside each statement's
  annotation.  Each element in an operand list is a pointer to a
! `VAR_DECL', `PARM_DECL' or `SSA_NAME' tree node.  This provides a very
  convenient way of examining and replacing operands.
  
   Data flow analysis and optimization is done on all tree nodes
! representing variables.  Any node for which `SSA_VAR_P' returns nonzero
  is considered when scanning statement operands.  However, not all
! `SSA_VAR_P' variables are processed in the same way.  For the purposes
  of optimization, we need to distinguish between references to local
! scalar variables and references to globals, statics, structures,
! arrays, aliased variables, etc.  The reason is simple, the compiler can
! gather complete data flow information for a local scalar.  On the other
! hand, a global variable may be modified by a function call, it may not
! be possible to keep track of all the elements of an array or the fields
! of a structure, etc.
  
   The operand scanner gathers two kinds of operands: "real" and
! "virtual".  An operand for which `is_gimple_reg' returns true is
! considered real, otherwise it is a virtual operand.  We also
! distinguish between uses and definitions.  An operand is used if its
! value is loaded by the statement (e.g., the operand at the RHS of an
! assignment).  If the statement assigns a new value to the operand, the
! operand is considered a definition (e.g., the operand at the LHS of an
! assignment).
  
   Virtual and real operands also have very different data flow
! properties.  Real operands are unambiguous references to the full
! object that they represent.  For instance, given
  
       {
         int a, b;
         a = b
       }
  
!  Since `a' and `b' are non-aliased locals, the statement `a = b' will
! have one real definition and one real use because variable `a' is
! completely modified with the contents of variable `b'.  Real definition
! are also known as "killing definitions".  Similarly, the use of `b'
  reads all its bits.
  
   In contrast, virtual operands are used with variables that can have a
--- 13112,13153 ----
  statement's tree.  To facilitate access to the statement's operands,
  they are organized into lists associated inside each statement's
  annotation.  Each element in an operand list is a pointer to a
! 'VAR_DECL', 'PARM_DECL' or 'SSA_NAME' tree node.  This provides a very
  convenient way of examining and replacing operands.
  
   Data flow analysis and optimization is done on all tree nodes
! representing variables.  Any node for which 'SSA_VAR_P' returns nonzero
  is considered when scanning statement operands.  However, not all
! 'SSA_VAR_P' variables are processed in the same way.  For the purposes
  of optimization, we need to distinguish between references to local
! scalar variables and references to globals, statics, structures, arrays,
! aliased variables, etc.  The reason is simple, the compiler can gather
! complete data flow information for a local scalar.  On the other hand, a
! global variable may be modified by a function call, it may not be
! possible to keep track of all the elements of an array or the fields of
! a structure, etc.
  
   The operand scanner gathers two kinds of operands: "real" and
! "virtual".  An operand for which 'is_gimple_reg' returns true is
! considered real, otherwise it is a virtual operand.  We also distinguish
! between uses and definitions.  An operand is used if its value is loaded
! by the statement (e.g., the operand at the RHS of an assignment).  If
! the statement assigns a new value to the operand, the operand is
! considered a definition (e.g., the operand at the LHS of an assignment).
  
   Virtual and real operands also have very different data flow
! properties.  Real operands are unambiguous references to the full object
! that they represent.  For instance, given
  
       {
         int a, b;
         a = b
       }
  
!  Since 'a' and 'b' are non-aliased locals, the statement 'a = b' will
! have one real definition and one real use because variable 'a' is
! completely modified with the contents of variable 'b'.  Real definition
! are also known as "killing definitions".  Similarly, the use of 'b'
  reads all its bits.
  
   In contrast, virtual operands are used with variables that can have a
*************** definitions.  For globals, structures, a
*** 13298,13307 ****
  a statement whether a variable of these types has a killing definition.
  If the variable does, then the statement is marked as having a "must
  definition" of that variable.  However, if a statement is only defining
! a part of the variable (i.e. a field in a structure), or if we know
! that a statement might define the variable but we cannot say for sure,
! then we mark that statement as having a "may definition".  For
! instance, given
  
       {
         int a, b, *p;
--- 13157,13166 ----
  a statement whether a variable of these types has a killing definition.
  If the variable does, then the statement is marked as having a "must
  definition" of that variable.  However, if a statement is only defining
! a part of the variable (i.e. a field in a structure), or if we know that
! a statement might define the variable but we cannot say for sure, then
! we mark that statement as having a "may definition".  For instance,
! given
  
       {
         int a, b, *p;
*************** instance, given
*** 13314,13327 ****
         return *p;
       }
  
!  The assignment `*p = 5' may be a definition of `a' or `b'.  If we
! cannot determine statically where `p' is pointing to at the time of the
! store operation, we create virtual definitions to mark that statement
! as a potential definition site for `a' and `b'.  Memory loads are
! similarly marked with virtual use operands.  Virtual operands are shown
! in tree dumps right before the statement that contains them.  To
! request a tree dump with virtual operands, use the `-vops' option to
! `-fdump-tree':
  
       {
         int a, b, *p;
--- 13173,13185 ----
         return *p;
       }
  
!  The assignment '*p = 5' may be a definition of 'a' or 'b'.  If we
! cannot determine statically where 'p' is pointing to at the time of the
! store operation, we create virtual definitions to mark that statement as
! a potential definition site for 'a' and 'b'.  Memory loads are similarly
! marked with virtual use operands.  Virtual operands are shown in tree
! dumps right before the statement that contains them.  To request a tree
! dump with virtual operands, use the '-vops' option to '-fdump-tree':
  
       {
         int a, b, *p;
*************** request a tree dump with virtual operand
*** 13339,13393 ****
         return *p;
       }
  
!  Notice that `VDEF' operands have two copies of the referenced
! variable.  This indicates that this is not a killing definition of that
! variable.  In this case we refer to it as a "may definition" or
! "aliased store".  The presence of the second copy of the variable in
! the `VDEF' operand will become important when the function is converted
! into SSA form.  This will be used to link all the non-killing
! definitions to prevent optimizations from making incorrect assumptions
! about them.
  
!  Operands are updated as soon as the statement is finished via a call
! to `update_stmt'.  If statement elements are changed via `SET_USE' or
! `SET_DEF', then no further action is required (i.e., those macros take
  care of updating the statement).  If changes are made by manipulating
! the statement's tree directly, then a call must be made to
! `update_stmt' when complete.  Calling one of the `bsi_insert' routines
! or `bsi_replace' performs an implicit call to `update_stmt'.
  
  12.2.1 Operand Iterators And Access Routines
  --------------------------------------------
  
! Operands are collected by `tree-ssa-operands.c'.  They are stored
! inside each statement's annotation and can be accessed through either
! the operand iterators or an access routine.
  
   The following access routines are available for examining operands:
  
!   1. `SINGLE_SSA_{USE,DEF,TREE}_OPERAND': These accessors will return
       NULL unless there is exactly one operand matching the specified
!      flags.  If there is exactly one operand, the operand is returned
!      as either a `tree', `def_operand_p', or `use_operand_p'.
  
            tree t = SINGLE_SSA_TREE_OPERAND (stmt, flags);
            use_operand_p u = SINGLE_SSA_USE_OPERAND (stmt, SSA_ALL_VIRTUAL_USES);
            def_operand_p d = SINGLE_SSA_DEF_OPERAND (stmt, SSA_OP_ALL_DEFS);
  
!   2. `ZERO_SSA_OPERANDS': This macro returns true if there are no
       operands matching the specified flags.
  
            if (ZERO_SSA_OPERANDS (stmt, SSA_OP_ALL_VIRTUALS))
              return;
  
!   3. `NUM_SSA_OPERANDS': This macro Returns the number of operands
       matching 'flags'.  This actually executes a loop to perform the
       count, so only use this if it is really needed.
  
            int count = NUM_SSA_OPERANDS (stmt, flags)
  
   If you wish to iterate over some or all operands, use the
! `FOR_EACH_SSA_{USE,DEF,TREE}_OPERAND' iterator.  For example, to print
  all the operands for a statement:
  
       void
--- 13197,13250 ----
         return *p;
       }
  
!  Notice that 'VDEF' operands have two copies of the referenced variable.
! This indicates that this is not a killing definition of that variable.
! In this case we refer to it as a "may definition" or "aliased store".
! The presence of the second copy of the variable in the 'VDEF' operand
! will become important when the function is converted into SSA form.
! This will be used to link all the non-killing definitions to prevent
! optimizations from making incorrect assumptions about them.
  
!  Operands are updated as soon as the statement is finished via a call to
! 'update_stmt'.  If statement elements are changed via 'SET_USE' or
! 'SET_DEF', then no further action is required (i.e., those macros take
  care of updating the statement).  If changes are made by manipulating
! the statement's tree directly, then a call must be made to 'update_stmt'
! when complete.  Calling one of the 'bsi_insert' routines or
! 'bsi_replace' performs an implicit call to 'update_stmt'.
  
  12.2.1 Operand Iterators And Access Routines
  --------------------------------------------
  
! Operands are collected by 'tree-ssa-operands.c'.  They are stored inside
! each statement's annotation and can be accessed through either the
! operand iterators or an access routine.
  
   The following access routines are available for examining operands:
  
!   1. 'SINGLE_SSA_{USE,DEF,TREE}_OPERAND': These accessors will return
       NULL unless there is exactly one operand matching the specified
!      flags.  If there is exactly one operand, the operand is returned as
!      either a 'tree', 'def_operand_p', or 'use_operand_p'.
  
            tree t = SINGLE_SSA_TREE_OPERAND (stmt, flags);
            use_operand_p u = SINGLE_SSA_USE_OPERAND (stmt, SSA_ALL_VIRTUAL_USES);
            def_operand_p d = SINGLE_SSA_DEF_OPERAND (stmt, SSA_OP_ALL_DEFS);
  
!   2. 'ZERO_SSA_OPERANDS': This macro returns true if there are no
       operands matching the specified flags.
  
            if (ZERO_SSA_OPERANDS (stmt, SSA_OP_ALL_VIRTUALS))
              return;
  
!   3. 'NUM_SSA_OPERANDS': This macro Returns the number of operands
       matching 'flags'.  This actually executes a loop to perform the
       count, so only use this if it is really needed.
  
            int count = NUM_SSA_OPERANDS (stmt, flags)
  
   If you wish to iterate over some or all operands, use the
! 'FOR_EACH_SSA_{USE,DEF,TREE}_OPERAND' iterator.  For example, to print
  all the operands for a statement:
  
       void
*************** all the operands for a statement:
*** 13402,13409 ****
  
   How to choose the appropriate iterator:
  
!   1. Determine whether you are need to see the operand pointers, or
!      just the trees, and choose the appropriate macro:
  
            Need            Macro:
            ----            -------
--- 13259,13266 ----
  
   How to choose the appropriate iterator:
  
!   1. Determine whether you are need to see the operand pointers, or just
!      the trees, and choose the appropriate macro:
  
            Need            Macro:
            ----            -------
*************** all the operands for a statement:
*** 13417,13423 ****
  
    3. Determine which operands you wish to use, and specify the flags of
       those you are interested in.  They are documented in
!      `tree-ssa-operands.h':
  
            #define SSA_OP_USE              0x01    /* Real USE operands.  */
            #define SSA_OP_DEF              0x02    /* Real DEF operands.  */
--- 13274,13280 ----
  
    3. Determine which operands you wish to use, and specify the flags of
       those you are interested in.  They are documented in
!      'tree-ssa-operands.h':
  
            #define SSA_OP_USE              0x01    /* Real USE operands.  */
            #define SSA_OP_DEF              0x02    /* Real DEF operands.  */
*************** all the operands for a statement:
*** 13432,13439 ****
            #define SSA_OP_ALL_DEFS		(SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF)
            #define SSA_OP_ALL_OPERANDS	(SSA_OP_ALL_USES | SSA_OP_ALL_DEFS)
  
!  So if you want to look at the use pointers for all the `USE' and
! `VUSE' operands, you would do something like:
  
         use_operand_p use_p;
         ssa_op_iter iter;
--- 13289,13296 ----
            #define SSA_OP_ALL_DEFS		(SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF)
            #define SSA_OP_ALL_OPERANDS	(SSA_OP_ALL_USES | SSA_OP_ALL_DEFS)
  
!  So if you want to look at the use pointers for all the 'USE' and 'VUSE'
! operands, you would do something like:
  
         use_operand_p use_p;
         ssa_op_iter iter;
*************** all the operands for a statement:
*** 13443,13452 ****
             process_use_ptr (use_p);
           }
  
!  The `TREE' macro is basically the same as the `USE' and `DEF' macros,
! only with the use or def dereferenced via `USE_FROM_PTR (use_p)' and
! `DEF_FROM_PTR (def_p)'.  Since we aren't using operand pointers, use
! and defs flags can be mixed.
  
         tree var;
         ssa_op_iter iter;
--- 13300,13309 ----
             process_use_ptr (use_p);
           }
  
!  The 'TREE' macro is basically the same as the 'USE' and 'DEF' macros,
! only with the use or def dereferenced via 'USE_FROM_PTR (use_p)' and
! 'DEF_FROM_PTR (def_p)'.  Since we aren't using operand pointers, use and
! defs flags can be mixed.
  
         tree var;
         ssa_op_iter iter;
*************** and defs flags can be mixed.
*** 13456,13472 ****
              print_generic_expr (stderr, var, TDF_SLIM);
           }
  
!  `VDEF's are broken into two flags, one for the `DEF' portion
! (`SSA_OP_VDEF') and one for the USE portion (`SSA_OP_VUSE').
  
   There are many examples in the code, in addition to the documentation
! in `tree-ssa-operands.h' and `ssa-iterators.h'.
  
   There are also a couple of variants on the stmt iterators regarding PHI
  nodes.
  
!  `FOR_EACH_PHI_ARG' Works exactly like `FOR_EACH_SSA_USE_OPERAND',
! except it works over `PHI' arguments instead of statement operands.
  
       /* Look at every virtual PHI use.  */
       FOR_EACH_PHI_ARG (use_p, phi_stmt, iter, SSA_OP_VIRTUAL_USES)
--- 13313,13329 ----
              print_generic_expr (stderr, var, TDF_SLIM);
           }
  
!  'VDEF's are broken into two flags, one for the 'DEF' portion
! ('SSA_OP_VDEF') and one for the USE portion ('SSA_OP_VUSE').
  
   There are many examples in the code, in addition to the documentation
! in 'tree-ssa-operands.h' and 'ssa-iterators.h'.
  
   There are also a couple of variants on the stmt iterators regarding PHI
  nodes.
  
!  'FOR_EACH_PHI_ARG' Works exactly like 'FOR_EACH_SSA_USE_OPERAND',
! except it works over 'PHI' arguments instead of statement operands.
  
       /* Look at every virtual PHI use.  */
       FOR_EACH_PHI_ARG (use_p, phi_stmt, iter, SSA_OP_VIRTUAL_USES)
*************** except it works over `PHI' arguments ins
*** 13482,13492 ****
       FOR_EACH_PHI_ARG (use_p, phi_stmt, iter, SSA_OP_ALL_USES)
         my_code;
  
!  `FOR_EACH_PHI_OR_STMT_{USE,DEF}' works exactly like
! `FOR_EACH_SSA_{USE,DEF}_OPERAND', except it will function on either a
! statement or a `PHI' node.  These should be used when it is appropriate
! but they are not quite as efficient as the individual `FOR_EACH_PHI'
! and `FOR_EACH_SSA' routines.
  
       FOR_EACH_PHI_OR_STMT_USE (use_operand_p, stmt, iter, flags)
         {
--- 13339,13349 ----
       FOR_EACH_PHI_ARG (use_p, phi_stmt, iter, SSA_OP_ALL_USES)
         my_code;
  
!  'FOR_EACH_PHI_OR_STMT_{USE,DEF}' works exactly like
! 'FOR_EACH_SSA_{USE,DEF}_OPERAND', except it will function on either a
! statement or a 'PHI' node.  These should be used when it is appropriate
! but they are not quite as efficient as the individual 'FOR_EACH_PHI' and
! 'FOR_EACH_SSA' routines.
  
       FOR_EACH_PHI_OR_STMT_USE (use_operand_p, stmt, iter, flags)
         {
*************** and `FOR_EACH_SSA' routines.
*** 13502,13509 ****
  ---------------------
  
  Immediate use information is now always available.  Using the immediate
! use iterators, you may examine every use of any `SSA_NAME'. For
! instance, to change each use of `ssa_var' to `ssa_var2' and call
  fold_stmt on each stmt after that is done:
  
         use_operand_p imm_use_p;
--- 13359,13366 ----
  ---------------------
  
  Immediate use information is now always available.  Using the immediate
! use iterators, you may examine every use of any 'SSA_NAME'.  For
! instance, to change each use of 'ssa_var' to 'ssa_var2' and call
  fold_stmt on each stmt after that is done:
  
         use_operand_p imm_use_p;
*************** fold_stmt on each stmt after that is don
*** 13518,13538 ****
             fold_stmt (stmt);
           }
  
!  There are 2 iterators which can be used. `FOR_EACH_IMM_USE_FAST' is
  used when the immediate uses are not changed, i.e., you are looking at
  the uses, but not setting them.
  
   If they do get changed, then care must be taken that things are not
! changed under the iterators, so use the `FOR_EACH_IMM_USE_STMT' and
! `FOR_EACH_IMM_USE_ON_STMT' iterators.  They attempt to preserve the
  sanity of the use list by moving all the uses for a statement into a
  controlled position, and then iterating over those uses.  Then the
  optimization can manipulate the stmt when all the uses have been
  processed.  This is a little slower than the FAST version since it adds
  a placeholder element and must sort through the list a bit for each
! statement.  This placeholder element must be also be removed if the
! loop is terminated early.  The macro `BREAK_FROM_IMM_USE_SAFE' is
! provided to do this :
  
         FOR_EACH_IMM_USE_STMT (stmt, iterator, ssa_var)
           {
--- 13375,13395 ----
             fold_stmt (stmt);
           }
  
!  There are 2 iterators which can be used.  'FOR_EACH_IMM_USE_FAST' is
  used when the immediate uses are not changed, i.e., you are looking at
  the uses, but not setting them.
  
   If they do get changed, then care must be taken that things are not
! changed under the iterators, so use the 'FOR_EACH_IMM_USE_STMT' and
! 'FOR_EACH_IMM_USE_ON_STMT' iterators.  They attempt to preserve the
  sanity of the use list by moving all the uses for a statement into a
  controlled position, and then iterating over those uses.  Then the
  optimization can manipulate the stmt when all the uses have been
  processed.  This is a little slower than the FAST version since it adds
  a placeholder element and must sort through the list a bit for each
! statement.  This placeholder element must be also be removed if the loop
! is terminated early.  The macro 'BREAK_FROM_IMM_USE_SAFE' is provided to
! do this :
  
         FOR_EACH_IMM_USE_STMT (stmt, iterator, ssa_var)
           {
*************** provided to do this :
*** 13544,13579 ****
             fold_stmt (stmt);
           }
  
!  There are checks in `verify_ssa' which verify that the immediate use
  list is up to date, as well as checking that an optimization didn't
  break from the loop without using this macro.  It is safe to simply
! 'break'; from a `FOR_EACH_IMM_USE_FAST' traverse.
  
   Some useful functions and macros:
!   1. `has_zero_uses (ssa_var)' : Returns true if there are no uses of
!      `ssa_var'.
! 
!   2. `has_single_use (ssa_var)' : Returns true if there is only a
!      single use of `ssa_var'.
! 
!   3. `single_imm_use (ssa_var, use_operand_p *ptr, tree *stmt)' :
!      Returns true if there is only a single use of `ssa_var', and also
       returns the use pointer and statement it occurs in, in the second
       and third parameters.
! 
!   4. `num_imm_uses (ssa_var)' : Returns the number of immediate uses of
!      `ssa_var'. It is better not to use this if possible since it simply
!      utilizes a loop to count the uses.
! 
!   5. `PHI_ARG_INDEX_FROM_USE (use_p)' : Given a use within a `PHI'
!      node, return the index number for the use.  An assert is triggered
!      if the use isn't located in a `PHI' node.
! 
!   6. `USE_STMT (use_p)' : Return the statement a use occurs in.
  
   Note that uses are not put into an immediate use list until their
! statement is actually inserted into the instruction stream via a
! `bsi_*' routine.
  
   It is also still possible to utilize lazy updating of statements, but
  this should be used only when absolutely required.  Both alias analysis
--- 13401,13431 ----
             fold_stmt (stmt);
           }
  
!  There are checks in 'verify_ssa' which verify that the immediate use
  list is up to date, as well as checking that an optimization didn't
  break from the loop without using this macro.  It is safe to simply
! 'break'; from a 'FOR_EACH_IMM_USE_FAST' traverse.
  
   Some useful functions and macros:
!   1. 'has_zero_uses (ssa_var)' : Returns true if there are no uses of
!      'ssa_var'.
!   2. 'has_single_use (ssa_var)' : Returns true if there is only a single
!      use of 'ssa_var'.
!   3. 'single_imm_use (ssa_var, use_operand_p *ptr, tree *stmt)' :
!      Returns true if there is only a single use of 'ssa_var', and also
       returns the use pointer and statement it occurs in, in the second
       and third parameters.
!   4. 'num_imm_uses (ssa_var)' : Returns the number of immediate uses of
!      'ssa_var'.  It is better not to use this if possible since it
!      simply utilizes a loop to count the uses.
!   5. 'PHI_ARG_INDEX_FROM_USE (use_p)' : Given a use within a 'PHI' node,
!      return the index number for the use.  An assert is triggered if the
!      use isn't located in a 'PHI' node.
!   6. 'USE_STMT (use_p)' : Return the statement a use occurs in.
  
   Note that uses are not put into an immediate use list until their
! statement is actually inserted into the instruction stream via a 'bsi_*'
! routine.
  
   It is also still possible to utilize lazy updating of statements, but
  this should be used only when absolutely required.  Both alias analysis
*************** and the dominator optimizations currentl
*** 13581,13591 ****
  
   When lazy updating is being used, the immediate use information is out
  of date and cannot be used reliably.  Lazy updating is achieved by
! simply marking statements modified via calls to `gimple_set_modified'
! instead of `update_stmt'.  When lazy updating is no longer required,
! all the modified statements must have `update_stmt' called in order to
! bring them up to date.  This must be done before the optimization is
! finished, or `verify_ssa' will trigger an abort.
  
   This is done with a simple loop over the instruction stream:
         block_stmt_iterator bsi;
--- 13433,13443 ----
  
   When lazy updating is being used, the immediate use information is out
  of date and cannot be used reliably.  Lazy updating is achieved by
! simply marking statements modified via calls to 'gimple_set_modified'
! instead of 'update_stmt'.  When lazy updating is no longer required, all
! the modified statements must have 'update_stmt' called in order to bring
! them up to date.  This must be done before the optimization is finished,
! or 'verify_ssa' will trigger an abort.
  
   This is done with a simple loop over the instruction stream:
         block_stmt_iterator bsi;
*************** File: gccint.info,  Node: SSA,  Next: Al
*** 13604,13613 ****
  
  Most of the tree optimizers rely on the data flow information provided
  by the Static Single Assignment (SSA) form.  We implement the SSA form
! as described in `R. Cytron, J. Ferrante, B. Rosen, M. Wegman, and K.
! Zadeck.  Efficiently Computing Static Single Assignment Form and the
! Control Dependence Graph.  ACM Transactions on Programming Languages
! and Systems, 13(4):451-490, October 1991'.
  
   The SSA form is based on the premise that program variables are
  assigned in exactly one location in the program.  Multiple assignments
--- 13456,13465 ----
  
  Most of the tree optimizers rely on the data flow information provided
  by the Static Single Assignment (SSA) form.  We implement the SSA form
! as described in 'R. Cytron, J. Ferrante, B. Rosen, M. Wegman, and K.
! Zadeck. Efficiently Computing Static Single Assignment Form and the
! Control Dependence Graph. ACM Transactions on Programming Languages and
! Systems, 13(4):451-490, October 1991'.
  
   The SSA form is based on the premise that program variables are
  assigned in exactly one location in the program.  Multiple assignments
*************** representation so that every time a vari
*** 13618,13631 ****
  new version of the variable is created.  Different versions of the same
  variable are distinguished by subscripting the variable name with its
  version number.  Variables used in the right-hand side of expressions
! are renamed so that their version number matches that of the most
! recent assignment.
  
!  We represent variable versions using `SSA_NAME' nodes.  The renaming
! process in `tree-ssa.c' wraps every real and virtual operand with an
! `SSA_NAME' node which contains the version number and the statement
! that created the `SSA_NAME'.  Only definitions and virtual definitions
! may create new `SSA_NAME' nodes.
  
   Sometimes, flow of control makes it impossible to determine the most
  recent version of a variable.  In these cases, the compiler inserts an
--- 13470,13483 ----
  new version of the variable is created.  Different versions of the same
  variable are distinguished by subscripting the variable name with its
  version number.  Variables used in the right-hand side of expressions
! are renamed so that their version number matches that of the most recent
! assignment.
  
!  We represent variable versions using 'SSA_NAME' nodes.  The renaming
! process in 'tree-ssa.c' wraps every real and virtual operand with an
! 'SSA_NAME' node which contains the version number and the statement that
! created the 'SSA_NAME'.  Only definitions and virtual definitions may
! create new 'SSA_NAME' nodes.
  
   Sometimes, flow of control makes it impossible to determine the most
  recent version of a variable.  In these cases, the compiler inserts an
*************** variable to create a new name for it.  F
*** 13644,13662 ****
       return a_4;
  
   Since it is not possible to determine which of the three branches will
! be taken at runtime, we don't know which of `a_1', `a_2' or `a_3' to
! use at the return statement.  So, the SSA renamer creates a new version
! `a_4' which is assigned the result of "merging" `a_1', `a_2' and `a_3'.
  Hence, PHI nodes mean "one of these operands.  I don't know which".
  
   The following functions can be used to examine PHI nodes
  
   -- Function: gimple_phi_result (PHI)
!      Returns the `SSA_NAME' created by PHI node PHI (i.e., PHI's LHS).
  
   -- Function: gimple_phi_num_args (PHI)
!      Returns the number of arguments in PHI.  This number is exactly
!      the number of incoming edges to the basic block holding PHI.
  
   -- Function: gimple_phi_arg (PHI, I)
       Returns Ith argument of PHI.
--- 13496,13514 ----
       return a_4;
  
   Since it is not possible to determine which of the three branches will
! be taken at runtime, we don't know which of 'a_1', 'a_2' or 'a_3' to use
! at the return statement.  So, the SSA renamer creates a new version
! 'a_4' which is assigned the result of "merging" 'a_1', 'a_2' and 'a_3'.
  Hence, PHI nodes mean "one of these operands.  I don't know which".
  
   The following functions can be used to examine PHI nodes
  
   -- Function: gimple_phi_result (PHI)
!      Returns the 'SSA_NAME' created by PHI node PHI (i.e., PHI's LHS).
  
   -- Function: gimple_phi_num_args (PHI)
!      Returns the number of arguments in PHI.  This number is exactly the
!      number of incoming edges to the basic block holding PHI.
  
   -- Function: gimple_phi_arg (PHI, I)
       Returns Ith argument of PHI.
*************** Hence, PHI nodes mean "one of these oper
*** 13665,13671 ****
       Returns the incoming edge for the Ith argument of PHI.
  
   -- Function: gimple_phi_arg_def (PHI, I)
!      Returns the `SSA_NAME' for the Ith argument of PHI.
  
  12.3.1 Preserving the SSA form
  ------------------------------
--- 13517,13523 ----
       Returns the incoming edge for the Ith argument of PHI.
  
   -- Function: gimple_phi_arg_def (PHI, I)
!      Returns the 'SSA_NAME' for the Ith argument of PHI.
  
  12.3.1 Preserving the SSA form
  ------------------------------
*************** SSA form.
*** 13682,13689 ****
  variables, keeping the SSA form up to date depends on whether you are
  updating register or virtual names.  In both cases, the general idea
  behind incremental SSA updates is similar: when new SSA names are
! created, they typically are meant to replace other existing names in
! the program.
  
   For instance, given the following code:
  
--- 13534,13541 ----
  variables, keeping the SSA form up to date depends on whether you are
  updating register or virtual names.  In both cases, the general idea
  behind incremental SSA updates is similar: when new SSA names are
! created, they typically are meant to replace other existing names in the
! program.
  
   For instance, given the following code:
  
*************** the program.
*** 13699,13705 ****
            10   goto L0;
            11 endif
  
!  Suppose that we insert new names `x_10' and `x_11' (lines `4' and `8').
  
            1  L0:
            2  x_1 = PHI (0, x_5)
--- 13551,13557 ----
            10   goto L0;
            11 endif
  
!  Suppose that we insert new names 'x_10' and 'x_11' (lines '4' and '8').
  
            1  L0:
            2  x_1 = PHI (0, x_5)
*************** the program.
*** 13715,13800 ****
            12   goto L0;
            13 endif
  
!  We want to replace all the uses of `x_1' with the new definitions of
! `x_10' and `x_11'.  Note that the only uses that should be replaced are
! those at lines `5', `9' and `11'.  Also, the use of `x_7' at line `9'
! should _not_ be replaced (this is why we cannot just mark symbol `x' for
  renaming).
  
!  Additionally, we may need to insert a PHI node at line `11' because
! that is a merge point for `x_10' and `x_11'.  So the use of `x_1' at
! line `11' will be replaced with the new PHI node.  The insertion of PHI
  nodes is optional.  They are not strictly necessary to preserve the SSA
  form, and depending on what the caller inserted, they may not even be
  useful for the optimizers.
  
   Updating the SSA form is a two step process.  First, the pass has to
  identify which names need to be updated and/or which symbols need to be
! renamed into SSA form for the first time.  When new names are
! introduced to replace existing names in the program, the mapping
! between the old and the new names are registered by calling
! `register_new_name_mapping' (note that if your pass creates new code by
! duplicating basic blocks, the call to `tree_duplicate_bb' will set up
! the necessary mappings automatically).
  
   After the replacement mappings have been registered and new symbols
! marked for renaming, a call to `update_ssa' makes the registered
! changes.  This can be done with an explicit call or by creating `TODO'
! flags in the `tree_opt_pass' structure for your pass.  There are
! several `TODO' flags that control the behavior of `update_ssa':
  
!    * `TODO_update_ssa'.  Update the SSA form inserting PHI nodes for
       newly exposed symbols and virtual names marked for updating.  When
!      updating real names, only insert PHI nodes for a real name `O_j'
!      in blocks reached by all the new and old definitions for `O_j'.
!      If the iterated dominance frontier for `O_j' is not pruned, we may
!      end up inserting PHI nodes in blocks that have one or more edges
!      with no incoming definition for `O_j'.  This would lead to
!      uninitialized warnings for `O_j''s symbol.
  
!    * `TODO_update_ssa_no_phi'.  Update the SSA form without inserting
       any new PHI nodes at all.  This is used by passes that have either
       inserted all the PHI nodes themselves or passes that need only to
       patch use-def and def-def chains for virtuals (e.g., DCE).
  
!    * `TODO_update_ssa_full_phi'.  Insert PHI nodes everywhere they are
       needed.  No pruning of the IDF is done.  This is used by passes
!      that need the PHI nodes for `O_j' even if it means that some
!      arguments will come from the default definition of `O_j''s symbol
!      (e.g., `pass_linear_transform').
  
       WARNING: If you need to use this flag, chances are that your pass
       may be doing something wrong.  Inserting PHI nodes for an old name
       where not all edges carry a new replacement may lead to silent
       codegen errors or spurious uninitialized warnings.
  
!    * `TODO_update_ssa_only_virtuals'.  Passes that update the SSA form
       on their own may want to delegate the updating of virtual names to
!      the generic updater.  Since FUD chains are easier to maintain,
!      this simplifies the work they need to do.  NOTE: If this flag is
!      used, any OLD->NEW mappings for real names are explicitly
!      destroyed and only the symbols marked for renaming are processed.
  
! 12.3.2 Examining `SSA_NAME' nodes
  ---------------------------------
  
! The following macros can be used to examine `SSA_NAME' nodes
  
   -- Macro: SSA_NAME_DEF_STMT (VAR)
!      Returns the statement S that creates the `SSA_NAME' VAR.  If S is
!      an empty statement (i.e., `IS_EMPTY_STMT (S)' returns `true'), it
       means that the first reference to this variable is a USE or a VUSE.
  
   -- Macro: SSA_NAME_VERSION (VAR)
!      Returns the version number of the `SSA_NAME' object VAR.
  
  12.3.3 Walking the dominator tree
  ---------------------------------
  
   -- Tree SSA function: void walk_dominator_tree (WALK_DATA, BB)
       This function walks the dominator tree for the current CFG calling
       a set of callback functions defined in STRUCT DOM_WALK_DATA in
!      `domwalk.h'.  The call back functions you need to define give you
       hooks to execute custom code at various points during traversal:
  
         1. Once to initialize any local data needed while processing BB
--- 13567,13653 ----
            12   goto L0;
            13 endif
  
!  We want to replace all the uses of 'x_1' with the new definitions of
! 'x_10' and 'x_11'.  Note that the only uses that should be replaced are
! those at lines '5', '9' and '11'.  Also, the use of 'x_7' at line '9'
! should _not_ be replaced (this is why we cannot just mark symbol 'x' for
  renaming).
  
!  Additionally, we may need to insert a PHI node at line '11' because
! that is a merge point for 'x_10' and 'x_11'.  So the use of 'x_1' at
! line '11' will be replaced with the new PHI node.  The insertion of PHI
  nodes is optional.  They are not strictly necessary to preserve the SSA
  form, and depending on what the caller inserted, they may not even be
  useful for the optimizers.
  
   Updating the SSA form is a two step process.  First, the pass has to
  identify which names need to be updated and/or which symbols need to be
! renamed into SSA form for the first time.  When new names are introduced
! to replace existing names in the program, the mapping between the old
! and the new names are registered by calling 'register_new_name_mapping'
! (note that if your pass creates new code by duplicating basic blocks,
! the call to 'tree_duplicate_bb' will set up the necessary mappings
! automatically).
  
   After the replacement mappings have been registered and new symbols
! marked for renaming, a call to 'update_ssa' makes the registered
! changes.  This can be done with an explicit call or by creating 'TODO'
! flags in the 'tree_opt_pass' structure for your pass.  There are several
! 'TODO' flags that control the behavior of 'update_ssa':
  
!    * 'TODO_update_ssa'.  Update the SSA form inserting PHI nodes for
       newly exposed symbols and virtual names marked for updating.  When
!      updating real names, only insert PHI nodes for a real name 'O_j' in
!      blocks reached by all the new and old definitions for 'O_j'.  If
!      the iterated dominance frontier for 'O_j' is not pruned, we may end
!      up inserting PHI nodes in blocks that have one or more edges with
!      no incoming definition for 'O_j'.  This would lead to uninitialized
!      warnings for 'O_j''s symbol.
  
!    * 'TODO_update_ssa_no_phi'.  Update the SSA form without inserting
       any new PHI nodes at all.  This is used by passes that have either
       inserted all the PHI nodes themselves or passes that need only to
       patch use-def and def-def chains for virtuals (e.g., DCE).
  
!    * 'TODO_update_ssa_full_phi'.  Insert PHI nodes everywhere they are
       needed.  No pruning of the IDF is done.  This is used by passes
!      that need the PHI nodes for 'O_j' even if it means that some
!      arguments will come from the default definition of 'O_j''s symbol
!      (e.g., 'pass_linear_transform').
  
       WARNING: If you need to use this flag, chances are that your pass
       may be doing something wrong.  Inserting PHI nodes for an old name
       where not all edges carry a new replacement may lead to silent
       codegen errors or spurious uninitialized warnings.
  
!    * 'TODO_update_ssa_only_virtuals'.  Passes that update the SSA form
       on their own may want to delegate the updating of virtual names to
!      the generic updater.  Since FUD chains are easier to maintain, this
!      simplifies the work they need to do.  NOTE: If this flag is used,
!      any OLD->NEW mappings for real names are explicitly destroyed and
!      only the symbols marked for renaming are processed.
  
! 12.3.2 Examining 'SSA_NAME' nodes
  ---------------------------------
  
! The following macros can be used to examine 'SSA_NAME' nodes
  
   -- Macro: SSA_NAME_DEF_STMT (VAR)
!      Returns the statement S that creates the 'SSA_NAME' VAR.  If S is
!      an empty statement (i.e., 'IS_EMPTY_STMT (S)' returns 'true'), it
       means that the first reference to this variable is a USE or a VUSE.
  
   -- Macro: SSA_NAME_VERSION (VAR)
!      Returns the version number of the 'SSA_NAME' object VAR.
  
  12.3.3 Walking the dominator tree
  ---------------------------------
  
   -- Tree SSA function: void walk_dominator_tree (WALK_DATA, BB)
+ 
       This function walks the dominator tree for the current CFG calling
       a set of callback functions defined in STRUCT DOM_WALK_DATA in
!      'domwalk.h'.  The call back functions you need to define give you
       hooks to execute custom code at various points during traversal:
  
         1. Once to initialize any local data needed while processing BB
*************** disambiguate explicit and implicit memor
*** 13833,13841 ****
  
    1. Memory SSA form.
  
!      All statements that may use memory have exactly one accompanied
!      use of a virtual SSA name that represents the state of memory at
!      the given point in the IL.
  
       All statements that may define memory have exactly one accompanied
       definition of a virtual SSA name using the previous state of memory
--- 13686,13694 ----
  
    1. Memory SSA form.
  
!      All statements that may use memory have exactly one accompanied use
!      of a virtual SSA name that represents the state of memory at the
!      given point in the IL.
  
       All statements that may define memory have exactly one accompanied
       definition of a virtual SSA name using the previous state of memory
*************** disambiguate explicit and implicit memor
*** 13851,13859 ****
              return i;
            }
  
!      The virtual SSA names in this case are `.MEM_2(D)' and `.MEM_3'.
!      The store to the global variable `i' defines `.MEM_3' invalidating
!      `.MEM_2(D)'.  The load from `i' uses that new state `.MEM_3'.
  
       The virtual SSA web serves as constraints to SSA optimizers
       preventing illegitimate code-motion and optimization.  It also
--- 13704,13712 ----
              return i;
            }
  
!      The virtual SSA names in this case are '.MEM_2(D)' and '.MEM_3'.
!      The store to the global variable 'i' defines '.MEM_3' invalidating
!      '.MEM_2(D)'.  The load from 'i' uses that new state '.MEM_3'.
  
       The virtual SSA web serves as constraints to SSA optimizers
       preventing illegitimate code-motion and optimization.  It also
*************** disambiguate explicit and implicit memor
*** 13869,13897 ****
       what it may possibly point to.
  
       This points-to solution for a given SSA name pointer is stored in
!      the `pt_solution' sub-structure of the `SSA_NAME_PTR_INFO' record.
       The following accessor functions are available:
  
!         * `pt_solution_includes'
! 
!         * `pt_solutions_intersect'
  
       Points-to analysis also computes the solution for two special set
!      of pointers, `ESCAPED' and `CALLUSED'.  Those represent all memory
       that has escaped the scope of analysis or that is used by pure or
       nested const calls.
  
    3. Type-based alias analysis
  
       Type-based alias analysis is frontend dependent though generic
!      support is provided by the middle-end in `alias.c'.  TBAA code is
       used by both tree optimizers and RTL optimizers.
  
       Every language that wishes to perform language-specific alias
!      analysis should define a function that computes, given a `tree'
!      node, an alias set for the node.  Nodes in different alias sets
!      are not allowed to alias.  For an example, see the C front-end
!      function `c_get_alias_set'.
  
    4. Tree alias-oracle
  
--- 13722,13749 ----
       what it may possibly point to.
  
       This points-to solution for a given SSA name pointer is stored in
!      the 'pt_solution' sub-structure of the 'SSA_NAME_PTR_INFO' record.
       The following accessor functions are available:
  
!         * 'pt_solution_includes'
!         * 'pt_solutions_intersect'
  
       Points-to analysis also computes the solution for two special set
!      of pointers, 'ESCAPED' and 'CALLUSED'.  Those represent all memory
       that has escaped the scope of analysis or that is used by pure or
       nested const calls.
  
    3. Type-based alias analysis
  
       Type-based alias analysis is frontend dependent though generic
!      support is provided by the middle-end in 'alias.c'.  TBAA code is
       used by both tree optimizers and RTL optimizers.
  
       Every language that wishes to perform language-specific alias
!      analysis should define a function that computes, given a 'tree'
!      node, an alias set for the node.  Nodes in different alias sets are
!      not allowed to alias.  For an example, see the C front-end function
!      'c_get_alias_set'.
  
    4. Tree alias-oracle
  
*************** disambiguate explicit and implicit memor
*** 13899,13921 ****
       references and memory references against statements.  The following
       queries are available:
  
!         * `refs_may_alias_p'
! 
!         * `ref_maybe_used_by_stmt_p'
! 
!         * `stmt_may_clobber_ref_p'
  
       In addition to those two kind of statement walkers are available
       walking statements related to a reference ref.
!      `walk_non_aliased_vuses' walks over dominating memory defining
       statements and calls back if the statement does not clobber ref
!      providing the non-aliased VUSE.  The walk stops at the first
!      clobbering statement or if asked to.  `walk_aliased_vdefs' walks
       over dominating memory defining statements and calls back on each
!      statement clobbering ref providing its aliasing VDEF.  The walk
       stops if asked to.
  
- 
  
  File: gccint.info,  Node: Memory model,  Prev: Alias analysis,  Up: Tree SSA
  
--- 13751,13770 ----
       references and memory references against statements.  The following
       queries are available:
  
!         * 'refs_may_alias_p'
!         * 'ref_maybe_used_by_stmt_p'
!         * 'stmt_may_clobber_ref_p'
  
       In addition to those two kind of statement walkers are available
       walking statements related to a reference ref.
!      'walk_non_aliased_vuses' walks over dominating memory defining
       statements and calls back if the statement does not clobber ref
!      providing the non-aliased VUSE. The walk stops at the first
!      clobbering statement or if asked to.  'walk_aliased_vdefs' walks
       over dominating memory defining statements and calls back on each
!      statement clobbering ref providing its aliasing VDEF. The walk
       stops if asked to.
  
  
  File: gccint.info,  Node: Memory model,  Prev: Alias analysis,  Up: Tree SSA
  
*************** effective type to objects with a declare
*** 13936,13942 ****
       an lvalue having a type that is not a character type, then the
       type of the lvalue becomes the effective type of the object for that
       access and for subsequent accesses that do not modify the stored value.
!      If a value is copied into an object using `memcpy' or `memmove',
       or is copied as an array of character type, then the effective type
       of the modified object for that access and for subsequent accesses that
       do not modify the value is undetermined.  For all other accesses to an
--- 13785,13791 ----
       an lvalue having a type that is not a character type, then the
       type of the lvalue becomes the effective type of the object for that
       access and for subsequent accesses that do not modify the stored value.
!      If a value is copied into an object using memcpy or memmove,
       or is copied as an array of character type, then the effective type
       of the modified object for that access and for subsequent accesses that
       do not modify the value is undetermined.  For all other accesses to an
*************** instructions to be output are described,
*** 13955,13962 ****
  algebraic form that describes what the instruction does.
  
   RTL is inspired by Lisp lists.  It has both an internal form, made up
! of structures that point at other structures, and a textual form that
! is used in the machine description and in printed debugging dumps.  The
  textual form uses nested parentheses to indicate the pointers in the
  internal form.
  
--- 13804,13811 ----
  algebraic form that describes what the instruction does.
  
   RTL is inspired by Lisp lists.  It has both an internal form, made up
! of structures that point at other structures, and a textual form that is
! used in the machine description and in printed debugging dumps.  The
  textual form uses nested parentheses to indicate the pointers in the
  internal form.
  
*************** internal form.
*** 13978,13984 ****
  * RTL Declarations::  Declaring volatility, constancy, etc.
  * Side Effects::      Expressions for storing in registers, etc.
  * Incdec::            Embedded side-effects for autoincrement addressing.
! * Assembler::         Representing `asm' with operands.
  * Debug Information:: Expressions representing debugging information.
  * Insns::             Expression types for entire insns.
  * Calls::             RTL representation of function call insns.
--- 13827,13833 ----
  * RTL Declarations::  Declaring volatility, constancy, etc.
  * Side Effects::      Expressions for storing in registers, etc.
  * Incdec::            Embedded side-effects for autoincrement addressing.
! * Assembler::         Representing 'asm' with operands.
  * Debug Information:: Expressions representing debugging information.
  * Insns::             Expression types for entire insns.
  * Calls::             RTL representation of function call insns.
*************** File: gccint.info,  Node: RTL Objects,
*** 13994,14013 ****
  RTL uses five kinds of objects: expressions, integers, wide integers,
  strings and vectors.  Expressions are the most important ones.  An RTL
  expression ("RTX", for short) is a C structure, but it is usually
! referred to with a pointer; a type that is given the typedef name `rtx'.
  
!  An integer is simply an `int'; their written form uses decimal digits.
! A wide integer is an integral object whose type is `HOST_WIDE_INT';
  their written form uses decimal digits.
  
   A string is a sequence of characters.  In core it is represented as a
! `char *' in usual C fashion, and it is written in C syntax as well.
! However, strings in RTL may never be null.  If you write an empty
! string in a machine description, it is represented in core as a null
! pointer rather than as a pointer to a null character.  In certain
! contexts, these null pointers instead of strings are valid.  Within RTL
! code, strings are most commonly found inside `symbol_ref' expressions,
! but they appear in other contexts in the RTL expressions that make up
  machine descriptions.
  
   In a machine description, strings are normally written with double
--- 13843,13862 ----
  RTL uses five kinds of objects: expressions, integers, wide integers,
  strings and vectors.  Expressions are the most important ones.  An RTL
  expression ("RTX", for short) is a C structure, but it is usually
! referred to with a pointer; a type that is given the typedef name 'rtx'.
  
!  An integer is simply an 'int'; their written form uses decimal digits.
! A wide integer is an integral object whose type is 'HOST_WIDE_INT';
  their written form uses decimal digits.
  
   A string is a sequence of characters.  In core it is represented as a
! 'char *' in usual C fashion, and it is written in C syntax as well.
! However, strings in RTL may never be null.  If you write an empty string
! in a machine description, it is represented in core as a null pointer
! rather than as a pointer to a null character.  In certain contexts,
! these null pointers instead of strings are valid.  Within RTL code,
! strings are most commonly found inside 'symbol_ref' expressions, but
! they appear in other contexts in the RTL expressions that make up
  machine descriptions.
  
   In a machine description, strings are normally written with double
*************** need not escape each quote character wit
*** 14027,14065 ****
  
   A vector contains an arbitrary number of pointers to expressions.  The
  number of elements in the vector is explicitly present in the vector.
! The written form of a vector consists of square brackets (`[...]')
  surrounding the elements, in sequence and with whitespace separating
  them.  Vectors of length zero are not created; null pointers are used
  instead.
  
   Expressions are classified by "expression codes" (also called RTX
! codes).  The expression code is a name defined in `rtl.def', which is
  also (in uppercase) a C enumeration constant.  The possible expression
  codes and their meanings are machine-independent.  The code of an RTX
! can be extracted with the macro `GET_CODE (X)' and altered with
! `PUT_CODE (X, NEWCODE)'.
  
   The expression code determines how many operands the expression
  contains, and what kinds of objects they are.  In RTL, unlike Lisp, you
  cannot tell by looking at an operand what kind of object it is.
! Instead, you must know from its context--from the expression code of
! the containing expression.  For example, in an expression of code
! `subreg', the first operand is to be regarded as an expression and the
! second operand as an integer.  In an expression of code `plus', there
! are two operands, both of which are to be regarded as expressions.  In
! a `symbol_ref' expression, there is one operand, which is to be
! regarded as a string.
  
   Expressions are written as parentheses containing the name of the
  expression type, its flags and machine mode if any, and then the
  operands of the expression (separated by spaces).
  
!  Expression code names in the `md' file are written in lowercase, but
  when they appear in C code they are written in uppercase.  In this
! manual, they are shown as follows: `const_int'.
  
   In a few contexts a null pointer is valid where an expression is
! normally wanted.  The written form of this is `(nil)'.
  
  
  File: gccint.info,  Node: RTL Classes,  Next: Accessors,  Prev: RTL Objects,  Up: RTL
--- 13876,13914 ----
  
   A vector contains an arbitrary number of pointers to expressions.  The
  number of elements in the vector is explicitly present in the vector.
! The written form of a vector consists of square brackets ('[...]')
  surrounding the elements, in sequence and with whitespace separating
  them.  Vectors of length zero are not created; null pointers are used
  instead.
  
   Expressions are classified by "expression codes" (also called RTX
! codes).  The expression code is a name defined in 'rtl.def', which is
  also (in uppercase) a C enumeration constant.  The possible expression
  codes and their meanings are machine-independent.  The code of an RTX
! can be extracted with the macro 'GET_CODE (X)' and altered with
! 'PUT_CODE (X, NEWCODE)'.
  
   The expression code determines how many operands the expression
  contains, and what kinds of objects they are.  In RTL, unlike Lisp, you
  cannot tell by looking at an operand what kind of object it is.
! Instead, you must know from its context--from the expression code of the
! containing expression.  For example, in an expression of code 'subreg',
! the first operand is to be regarded as an expression and the second
! operand as an integer.  In an expression of code 'plus', there are two
! operands, both of which are to be regarded as expressions.  In a
! 'symbol_ref' expression, there is one operand, which is to be regarded
! as a string.
  
   Expressions are written as parentheses containing the name of the
  expression type, its flags and machine mode if any, and then the
  operands of the expression (separated by spaces).
  
!  Expression code names in the 'md' file are written in lowercase, but
  when they appear in C code they are written in uppercase.  In this
! manual, they are shown as follows: 'const_int'.
  
   In a few contexts a null pointer is valid where an expression is
! normally wanted.  The written form of this is '(nil)'.
  
  
  File: gccint.info,  Node: RTL Classes,  Next: Accessors,  Prev: RTL Objects,  Up: RTL
*************** File: gccint.info,  Node: RTL Classes,
*** 14068,14223 ****
  ============================
  
  The various expression codes are divided into several "classes", which
! are represented by single characters.  You can determine the class of
! an RTX code with the macro `GET_RTX_CLASS (CODE)'.  Currently,
! `rtl.def' defines these classes:
  
! `RTX_OBJ'
       An RTX code that represents an actual object, such as a register
!      (`REG') or a memory location (`MEM', `SYMBOL_REF').  `LO_SUM') is
!      also included; instead, `SUBREG' and `STRICT_LOW_PART' are not in
!      this class, but in class `x'.
  
! `RTX_CONST_OBJ'
!      An RTX code that represents a constant object.  `HIGH' is also
       included in this class.
  
! `RTX_COMPARE'
!      An RTX code for a non-symmetric comparison, such as `GEU' or `LT'.
  
! `RTX_COMM_COMPARE'
!      An RTX code for a symmetric (commutative) comparison, such as `EQ'
!      or `ORDERED'.
  
! `RTX_UNARY'
!      An RTX code for a unary arithmetic operation, such as `NEG',
!      `NOT', or `ABS'.  This category also includes value extension
!      (sign or zero) and conversions between integer and floating point.
  
! `RTX_COMM_ARITH'
!      An RTX code for a commutative binary operation, such as `PLUS' or
!      `AND'.  `NE' and `EQ' are comparisons, so they have class `<'.
  
! `RTX_BIN_ARITH'
       An RTX code for a non-commutative binary operation, such as
!      `MINUS', `DIV', or `ASHIFTRT'.
  
! `RTX_BITFIELD_OPS'
       An RTX code for a bit-field operation.  Currently only
!      `ZERO_EXTRACT' and `SIGN_EXTRACT'.  These have three inputs and
!      are lvalues (so they can be used for insertion as well).  *Note
       Bit-Fields::.
  
! `RTX_TERNARY'
       An RTX code for other three input operations.  Currently only
!      `IF_THEN_ELSE',  `VEC_MERGE', `SIGN_EXTRACT', `ZERO_EXTRACT', and
!      `FMA'.
  
! `RTX_INSN'
!      An RTX code for an entire instruction:  `INSN', `JUMP_INSN', and
!      `CALL_INSN'.  *Note Insns::.
  
! `RTX_MATCH'
       An RTX code for something that matches in insns, such as
!      `MATCH_DUP'.  These only occur in machine descriptions.
  
! `RTX_AUTOINC'
       An RTX code for an auto-increment addressing mode, such as
!      `POST_INC'.  `XEXP (X, 0)' gives the auto-modified register.
  
! `RTX_EXTRA'
       All other RTX codes.  This category includes the remaining codes
!      used only in machine descriptions (`DEFINE_*', etc.).  It also
!      includes all the codes describing side effects (`SET', `USE',
!      `CLOBBER', etc.) and the non-insns that may appear on an insn
!      chain, such as `NOTE', `BARRIER', and `CODE_LABEL'.  `SUBREG' is
       also part of this class.
  
!  For each expression code, `rtl.def' specifies the number of contained
  objects and their kinds using a sequence of characters called the
! "format" of the expression code.  For example, the format of `subreg'
! is `ei'.
  
   These are the most commonly used format characters:
  
! `e'
       An expression (actually a pointer to an expression).
  
! `i'
       An integer.
  
! `w'
       A wide integer.
  
! `s'
       A string.
  
! `E'
       A vector of expressions.
  
   A few other format characters are used occasionally:
  
! `u'
!      `u' is equivalent to `e' except that it is printed differently in
       debugging dumps.  It is used for pointers to insns.
  
! `n'
!      `n' is equivalent to `i' except that it is printed differently in
       debugging dumps.  It is used for the line number or code number of
!      a `note' insn.
  
! `S'
!      `S' indicates a string which is optional.  In the RTL objects in
!      core, `S' is equivalent to `s', but when the object is read, from
!      an `md' file, the string value of this operand may be omitted.  An
       omitted string is taken to be the null string.
  
! `V'
!      `V' indicates a vector which is optional.  In the RTL objects in
!      core, `V' is equivalent to `E', but when the object is read from
!      an `md' file, the vector value of this operand may be omitted.  An
       omitted vector is effectively the same as a vector of no elements.
  
! `B'
!      `B' indicates a pointer to basic block structure.
  
! `0'
!      `0' means a slot whose contents do not fit any normal category.
!      `0' slots are not printed at all in dumps, and are often used in
       special ways by small parts of the compiler.
  
   There are macros to get the number of operands and the format of an
  expression code:
  
! `GET_RTX_LENGTH (CODE)'
       Number of operands of an RTX of code CODE.
  
! `GET_RTX_FORMAT (CODE)'
       The format of an RTX of code CODE, as a C string.
  
   Some classes of RTX codes always have the same format.  For example, it
! is safe to assume that all comparison operations have format `ee'.
  
! `1'
!      All codes of this class have format `e'.
  
! `<'
! `c'
! `2'
!      All codes of these classes have format `ee'.
  
! `b'
! `3'
!      All codes of these classes have format `eee'.
  
! `i'
!      All codes of this class have formats that begin with `iuueiee'.
       *Note Insns::.  Note that not all RTL objects linked onto an insn
!      chain are of class `i'.
  
! `o'
! `m'
! `x'
       You can make no assumptions about the format of these codes.
  
  
--- 13917,14072 ----
  ============================
  
  The various expression codes are divided into several "classes", which
! are represented by single characters.  You can determine the class of an
! RTX code with the macro 'GET_RTX_CLASS (CODE)'.  Currently, 'rtl.def'
! defines these classes:
  
! 'RTX_OBJ'
       An RTX code that represents an actual object, such as a register
!      ('REG') or a memory location ('MEM', 'SYMBOL_REF').  'LO_SUM') is
!      also included; instead, 'SUBREG' and 'STRICT_LOW_PART' are not in
!      this class, but in class 'x'.
  
! 'RTX_CONST_OBJ'
!      An RTX code that represents a constant object.  'HIGH' is also
       included in this class.
  
! 'RTX_COMPARE'
!      An RTX code for a non-symmetric comparison, such as 'GEU' or 'LT'.
  
! 'RTX_COMM_COMPARE'
!      An RTX code for a symmetric (commutative) comparison, such as 'EQ'
!      or 'ORDERED'.
  
! 'RTX_UNARY'
!      An RTX code for a unary arithmetic operation, such as 'NEG', 'NOT',
!      or 'ABS'.  This category also includes value extension (sign or
!      zero) and conversions between integer and floating point.
  
! 'RTX_COMM_ARITH'
!      An RTX code for a commutative binary operation, such as 'PLUS' or
!      'AND'.  'NE' and 'EQ' are comparisons, so they have class '<'.
  
! 'RTX_BIN_ARITH'
       An RTX code for a non-commutative binary operation, such as
!      'MINUS', 'DIV', or 'ASHIFTRT'.
  
! 'RTX_BITFIELD_OPS'
       An RTX code for a bit-field operation.  Currently only
!      'ZERO_EXTRACT' and 'SIGN_EXTRACT'.  These have three inputs and are
!      lvalues (so they can be used for insertion as well).  *Note
       Bit-Fields::.
  
! 'RTX_TERNARY'
       An RTX code for other three input operations.  Currently only
!      'IF_THEN_ELSE', 'VEC_MERGE', 'SIGN_EXTRACT', 'ZERO_EXTRACT', and
!      'FMA'.
  
! 'RTX_INSN'
!      An RTX code for an entire instruction: 'INSN', 'JUMP_INSN', and
!      'CALL_INSN'.  *Note Insns::.
  
! 'RTX_MATCH'
       An RTX code for something that matches in insns, such as
!      'MATCH_DUP'.  These only occur in machine descriptions.
  
! 'RTX_AUTOINC'
       An RTX code for an auto-increment addressing mode, such as
!      'POST_INC'.  'XEXP (X, 0)' gives the auto-modified register.
  
! 'RTX_EXTRA'
       All other RTX codes.  This category includes the remaining codes
!      used only in machine descriptions ('DEFINE_*', etc.).  It also
!      includes all the codes describing side effects ('SET', 'USE',
!      'CLOBBER', etc.)  and the non-insns that may appear on an insn
!      chain, such as 'NOTE', 'BARRIER', and 'CODE_LABEL'.  'SUBREG' is
       also part of this class.
  
!  For each expression code, 'rtl.def' specifies the number of contained
  objects and their kinds using a sequence of characters called the
! "format" of the expression code.  For example, the format of 'subreg' is
! 'ei'.
  
   These are the most commonly used format characters:
  
! 'e'
       An expression (actually a pointer to an expression).
  
! 'i'
       An integer.
  
! 'w'
       A wide integer.
  
! 's'
       A string.
  
! 'E'
       A vector of expressions.
  
   A few other format characters are used occasionally:
  
! 'u'
!      'u' is equivalent to 'e' except that it is printed differently in
       debugging dumps.  It is used for pointers to insns.
  
! 'n'
!      'n' is equivalent to 'i' except that it is printed differently in
       debugging dumps.  It is used for the line number or code number of
!      a 'note' insn.
  
! 'S'
!      'S' indicates a string which is optional.  In the RTL objects in
!      core, 'S' is equivalent to 's', but when the object is read, from
!      an 'md' file, the string value of this operand may be omitted.  An
       omitted string is taken to be the null string.
  
! 'V'
!      'V' indicates a vector which is optional.  In the RTL objects in
!      core, 'V' is equivalent to 'E', but when the object is read from an
!      'md' file, the vector value of this operand may be omitted.  An
       omitted vector is effectively the same as a vector of no elements.
  
! 'B'
!      'B' indicates a pointer to basic block structure.
  
! '0'
!      '0' means a slot whose contents do not fit any normal category.
!      '0' slots are not printed at all in dumps, and are often used in
       special ways by small parts of the compiler.
  
   There are macros to get the number of operands and the format of an
  expression code:
  
! 'GET_RTX_LENGTH (CODE)'
       Number of operands of an RTX of code CODE.
  
! 'GET_RTX_FORMAT (CODE)'
       The format of an RTX of code CODE, as a C string.
  
   Some classes of RTX codes always have the same format.  For example, it
! is safe to assume that all comparison operations have format 'ee'.
  
! '1'
!      All codes of this class have format 'e'.
  
! '<'
! 'c'
! '2'
!      All codes of these classes have format 'ee'.
  
! 'b'
! '3'
!      All codes of these classes have format 'eee'.
  
! 'i'
!      All codes of this class have formats that begin with 'iuueiee'.
       *Note Insns::.  Note that not all RTL objects linked onto an insn
!      chain are of class 'i'.
  
! 'o'
! 'm'
! 'x'
       You can make no assumptions about the format of these codes.
  
  
*************** File: gccint.info,  Node: Accessors,  Ne
*** 14226,14233 ****
  13.3 Access to Operands
  =======================
  
! Operands of expressions are accessed using the macros `XEXP', `XINT',
! `XWINT' and `XSTR'.  Each of these macros takes two arguments: an
  expression-pointer (RTX) and an operand number (counting from zero).
  Thus,
  
--- 14075,14082 ----
  13.3 Access to Operands
  =======================
  
! Operands of expressions are accessed using the macros 'XEXP', 'XINT',
! 'XWINT' and 'XSTR'.  Each of these macros takes two arguments: an
  expression-pointer (RTX) and an operand number (counting from zero).
  Thus,
  
*************** accesses operand 2 of expression X, as a
*** 14237,14243 ****
  
       XINT (X, 2)
  
! accesses the same operand as an integer.  `XSTR', used in the same
  fashion, would access it as a string.
  
   Any operand can be accessed as an integer, as an expression or as a
--- 14086,14092 ----
  
       XINT (X, 2)
  
! accesses the same operand as an integer.  'XSTR', used in the same
  fashion, would access it as a string.
  
   Any operand can be accessed as an integer, as an expression or as a
*************** value actually stored in the operand.  Y
*** 14246,14279 ****
  expression code of the containing expression.  That is also how you
  would know how many operands there are.
  
!  For example, if X is a `subreg' expression, you know that it has two
! operands which can be correctly accessed as `XEXP (X, 0)' and `XINT (X,
! 1)'.  If you did `XINT (X, 0)', you would get the address of the
  expression operand but cast as an integer; that might occasionally be
! useful, but it would be cleaner to write `(int) XEXP (X, 0)'.  `XEXP
! (X, 1)' would also compile without error, and would return the second,
  integer operand cast as an expression pointer, which would probably
! result in a crash when accessed.  Nothing stops you from writing `XEXP
  (X, 28)' either, but this will access memory past the end of the
  expression with unpredictable results.
  
   Access to operands which are vectors is more complicated.  You can use
! the macro `XVEC' to get the vector-pointer itself, or the macros
! `XVECEXP' and `XVECLEN' to access the elements and length of a vector.
  
! `XVEC (EXP, IDX)'
       Access the vector-pointer which is operand number IDX in EXP.
  
! `XVECLEN (EXP, IDX)'
       Access the length (number of elements) in the vector which is in
!      operand number IDX in EXP.  This value is an `int'.
  
! `XVECEXP (EXP, IDX, ELTNUM)'
       Access element number ELTNUM in the vector which is in operand
       number IDX in EXP.  This value is an RTX.
  
       It is up to you to make sure that ELTNUM is not negative and is
!      less than `XVECLEN (EXP, IDX)'.
  
   All the macros defined in this section expand into lvalues and
  therefore can be used to assign the operands, lengths and vector
--- 14095,14128 ----
  expression code of the containing expression.  That is also how you
  would know how many operands there are.
  
!  For example, if X is a 'subreg' expression, you know that it has two
! operands which can be correctly accessed as 'XEXP (X, 0)' and 'XINT (X,
! 1)'.  If you did 'XINT (X, 0)', you would get the address of the
  expression operand but cast as an integer; that might occasionally be
! useful, but it would be cleaner to write '(int) XEXP (X, 0)'.  'XEXP (X,
! 1)' would also compile without error, and would return the second,
  integer operand cast as an expression pointer, which would probably
! result in a crash when accessed.  Nothing stops you from writing 'XEXP
  (X, 28)' either, but this will access memory past the end of the
  expression with unpredictable results.
  
   Access to operands which are vectors is more complicated.  You can use
! the macro 'XVEC' to get the vector-pointer itself, or the macros
! 'XVECEXP' and 'XVECLEN' to access the elements and length of a vector.
  
! 'XVEC (EXP, IDX)'
       Access the vector-pointer which is operand number IDX in EXP.
  
! 'XVECLEN (EXP, IDX)'
       Access the length (number of elements) in the vector which is in
!      operand number IDX in EXP.  This value is an 'int'.
  
! 'XVECEXP (EXP, IDX, ELTNUM)'
       Access element number ELTNUM in the vector which is in operand
       number IDX in EXP.  This value is an RTX.
  
       It is up to you to make sure that ELTNUM is not negative and is
!      less than 'XVECLEN (EXP, IDX)'.
  
   All the macros defined in this section expand into lvalues and
  therefore can be used to assign the operands, lengths and vector
*************** File: gccint.info,  Node: Special Access
*** 14287,14427 ****
  
  Some RTL nodes have special annotations associated with them.
  
! `MEM'
! 
!     `MEM_ALIAS_SET (X)'
            If 0, X is not in any alias set, and may alias anything.
!           Otherwise, X can only alias `MEM's in a conflicting alias
!           set.  This value is set in a language-dependent manner in the
!           front-end, and should not be altered in the back-end.  In
!           some front-ends, these numbers may correspond in some way to
!           types, or other language-level entities, but they need not,
!           and the back-end makes no such assumptions.  These set
!           numbers are tested with `alias_sets_conflict_p'.
  
!     `MEM_EXPR (X)'
            If this register is known to hold the value of some user-level
            declaration, this is that tree node.  It may also be a
!           `COMPONENT_REF', in which case this is some field reference,
!           and `TREE_OPERAND (X, 0)' contains the declaration, or
!           another `COMPONENT_REF', or null if there is no compile-time
!           object associated with the reference.
  
!     `MEM_OFFSET_KNOWN_P (X)'
!           True if the offset of the memory reference from `MEM_EXPR' is
!           known.  `MEM_OFFSET (X)' provides the offset if so.
  
!     `MEM_OFFSET (X)'
!           The offset from the start of `MEM_EXPR'.  The value is only
!           valid if `MEM_OFFSET_KNOWN_P (X)' is true.
  
!     `MEM_SIZE_KNOWN_P (X)'
!           True if the size of the memory reference is known.  `MEM_SIZE
            (X)' provides its size if so.
  
!     `MEM_SIZE (X)'
            The size in bytes of the memory reference.  This is mostly
!           relevant for `BLKmode' references as otherwise the size is
            implied by the mode.  The value is only valid if
!           `MEM_SIZE_KNOWN_P (X)' is true.
  
!     `MEM_ALIGN (X)'
            The known alignment in bits of the memory reference.
  
!     `MEM_ADDR_SPACE (X)'
!           The address space of the memory reference.  This will
!           commonly be zero for the generic address space.
! 
! `REG'
  
!     `ORIGINAL_REGNO (X)'
!           This field holds the number the register "originally" had;
!           for a pseudo register turned into a hard reg this will hold
!           the old pseudo register number.
  
!     `REG_EXPR (X)'
            If this register is known to hold the value of some user-level
            declaration, this is that tree node.
  
!     `REG_OFFSET (X)'
            If this register is known to hold the value of some user-level
            declaration, this is the offset into that logical storage.
  
! `SYMBOL_REF'
! 
!     `SYMBOL_REF_DECL (X)'
!           If the `symbol_ref' X was created for a `VAR_DECL' or a
!           `FUNCTION_DECL', that tree is recorded here.  If this value is
            null, then X was created by back end code generation routines,
            and there is no associated front end symbol table entry.
  
!           `SYMBOL_REF_DECL' may also point to a tree of class `'c'',
            that is, some sort of constant.  In this case, the
!           `symbol_ref' is an entry in the per-file constant pool;
!           again, there is no associated front end symbol table entry.
  
!     `SYMBOL_REF_CONSTANT (X)'
!           If `CONSTANT_POOL_ADDRESS_P (X)' is true, this is the constant
            pool entry for X.  It is null otherwise.
  
!     `SYMBOL_REF_DATA (X)'
!           A field of opaque type used to store `SYMBOL_REF_DECL' or
!           `SYMBOL_REF_CONSTANT'.
  
!     `SYMBOL_REF_FLAGS (X)'
!           In a `symbol_ref', this is used to communicate various
            predicates about the symbol.  Some of these are common enough
            to be computed by common code, some are specific to the
            target.  The common bits are:
  
!          `SYMBOL_FLAG_FUNCTION'
                 Set if the symbol refers to a function.
  
!          `SYMBOL_FLAG_LOCAL'
                 Set if the symbol is local to this "module".  See
!                `TARGET_BINDS_LOCAL_P'.
  
!          `SYMBOL_FLAG_EXTERNAL'
                 Set if this symbol is not defined in this translation
                 unit.  Note that this is not the inverse of
!                `SYMBOL_FLAG_LOCAL'.
  
!          `SYMBOL_FLAG_SMALL'
                 Set if the symbol is located in the small data section.
!                See `TARGET_IN_SMALL_DATA_P'.
  
!          `SYMBOL_REF_TLS_MODEL (X)'
                 This is a multi-bit field accessor that returns the
!                `tls_model' to be used for a thread-local storage
!                symbol.  It returns zero for non-thread-local symbols.
  
!          `SYMBOL_FLAG_HAS_BLOCK_INFO'
!                Set if the symbol has `SYMBOL_REF_BLOCK' and
!                `SYMBOL_REF_BLOCK_OFFSET' fields.
  
!          `SYMBOL_FLAG_ANCHOR'
                 Set if the symbol is used as a section anchor.  "Section
!                anchors" are symbols that have a known position within
!                an `object_block' and that can be used to access nearby
                 members of that block.  They are used to implement
!                `-fsection-anchors'.
  
!                If this flag is set, then `SYMBOL_FLAG_HAS_BLOCK_INFO'
                 will be too.
  
!           Bits beginning with `SYMBOL_FLAG_MACH_DEP' are available for
            the target's use.
  
! `SYMBOL_REF_BLOCK (X)'
!      If `SYMBOL_REF_HAS_BLOCK_INFO_P (X)', this is the `object_block'
!      structure to which the symbol belongs, or `NULL' if it has not
!      been assigned a block.
  
! `SYMBOL_REF_BLOCK_OFFSET (X)'
!      If `SYMBOL_REF_HAS_BLOCK_INFO_P (X)', this is the offset of X from
!      the first object in `SYMBOL_REF_BLOCK (X)'.  The value is negative
!      if X has not yet been assigned to a block, or it has not been
!      given an offset within that block.
  
  
  File: gccint.info,  Node: Flags,  Next: Machine Modes,  Prev: Special Accessors,  Up: RTL
--- 14136,14273 ----
  
  Some RTL nodes have special annotations associated with them.
  
! 'MEM'
!      'MEM_ALIAS_SET (X)'
            If 0, X is not in any alias set, and may alias anything.
!           Otherwise, X can only alias 'MEM's in a conflicting alias set.
!           This value is set in a language-dependent manner in the
!           front-end, and should not be altered in the back-end.  In some
!           front-ends, these numbers may correspond in some way to types,
!           or other language-level entities, but they need not, and the
!           back-end makes no such assumptions.  These set numbers are
!           tested with 'alias_sets_conflict_p'.
  
!      'MEM_EXPR (X)'
            If this register is known to hold the value of some user-level
            declaration, this is that tree node.  It may also be a
!           'COMPONENT_REF', in which case this is some field reference,
!           and 'TREE_OPERAND (X, 0)' contains the declaration, or another
!           'COMPONENT_REF', or null if there is no compile-time object
!           associated with the reference.
  
!      'MEM_OFFSET_KNOWN_P (X)'
!           True if the offset of the memory reference from 'MEM_EXPR' is
!           known.  'MEM_OFFSET (X)' provides the offset if so.
  
!      'MEM_OFFSET (X)'
!           The offset from the start of 'MEM_EXPR'.  The value is only
!           valid if 'MEM_OFFSET_KNOWN_P (X)' is true.
  
!      'MEM_SIZE_KNOWN_P (X)'
!           True if the size of the memory reference is known.  'MEM_SIZE
            (X)' provides its size if so.
  
!      'MEM_SIZE (X)'
            The size in bytes of the memory reference.  This is mostly
!           relevant for 'BLKmode' references as otherwise the size is
            implied by the mode.  The value is only valid if
!           'MEM_SIZE_KNOWN_P (X)' is true.
  
!      'MEM_ALIGN (X)'
            The known alignment in bits of the memory reference.
  
!      'MEM_ADDR_SPACE (X)'
!           The address space of the memory reference.  This will commonly
!           be zero for the generic address space.
  
! 'REG'
!      'ORIGINAL_REGNO (X)'
!           This field holds the number the register "originally" had; for
!           a pseudo register turned into a hard reg this will hold the
!           old pseudo register number.
  
!      'REG_EXPR (X)'
            If this register is known to hold the value of some user-level
            declaration, this is that tree node.
  
!      'REG_OFFSET (X)'
            If this register is known to hold the value of some user-level
            declaration, this is the offset into that logical storage.
  
! 'SYMBOL_REF'
!      'SYMBOL_REF_DECL (X)'
!           If the 'symbol_ref' X was created for a 'VAR_DECL' or a
!           'FUNCTION_DECL', that tree is recorded here.  If this value is
            null, then X was created by back end code generation routines,
            and there is no associated front end symbol table entry.
  
!           'SYMBOL_REF_DECL' may also point to a tree of class ''c'',
            that is, some sort of constant.  In this case, the
!           'symbol_ref' is an entry in the per-file constant pool; again,
!           there is no associated front end symbol table entry.
  
!      'SYMBOL_REF_CONSTANT (X)'
!           If 'CONSTANT_POOL_ADDRESS_P (X)' is true, this is the constant
            pool entry for X.  It is null otherwise.
  
!      'SYMBOL_REF_DATA (X)'
!           A field of opaque type used to store 'SYMBOL_REF_DECL' or
!           'SYMBOL_REF_CONSTANT'.
  
!      'SYMBOL_REF_FLAGS (X)'
!           In a 'symbol_ref', this is used to communicate various
            predicates about the symbol.  Some of these are common enough
            to be computed by common code, some are specific to the
            target.  The common bits are:
  
!           'SYMBOL_FLAG_FUNCTION'
                 Set if the symbol refers to a function.
  
!           'SYMBOL_FLAG_LOCAL'
                 Set if the symbol is local to this "module".  See
!                'TARGET_BINDS_LOCAL_P'.
  
!           'SYMBOL_FLAG_EXTERNAL'
                 Set if this symbol is not defined in this translation
                 unit.  Note that this is not the inverse of
!                'SYMBOL_FLAG_LOCAL'.
  
!           'SYMBOL_FLAG_SMALL'
                 Set if the symbol is located in the small data section.
!                See 'TARGET_IN_SMALL_DATA_P'.
  
!           'SYMBOL_REF_TLS_MODEL (X)'
                 This is a multi-bit field accessor that returns the
!                'tls_model' to be used for a thread-local storage symbol.
!                It returns zero for non-thread-local symbols.
  
!           'SYMBOL_FLAG_HAS_BLOCK_INFO'
!                Set if the symbol has 'SYMBOL_REF_BLOCK' and
!                'SYMBOL_REF_BLOCK_OFFSET' fields.
  
!           'SYMBOL_FLAG_ANCHOR'
                 Set if the symbol is used as a section anchor.  "Section
!                anchors" are symbols that have a known position within an
!                'object_block' and that can be used to access nearby
                 members of that block.  They are used to implement
!                '-fsection-anchors'.
  
!                If this flag is set, then 'SYMBOL_FLAG_HAS_BLOCK_INFO'
                 will be too.
  
!           Bits beginning with 'SYMBOL_FLAG_MACH_DEP' are available for
            the target's use.
  
! 'SYMBOL_REF_BLOCK (X)'
!      If 'SYMBOL_REF_HAS_BLOCK_INFO_P (X)', this is the 'object_block'
!      structure to which the symbol belongs, or 'NULL' if it has not been
!      assigned a block.
  
! 'SYMBOL_REF_BLOCK_OFFSET (X)'
!      If 'SYMBOL_REF_HAS_BLOCK_INFO_P (X)', this is the offset of X from
!      the first object in 'SYMBOL_REF_BLOCK (X)'.  The value is negative
!      if X has not yet been assigned to a block, or it has not been given
!      an offset within that block.
  
  
  File: gccint.info,  Node: Flags,  Next: Machine Modes,  Prev: Special Accessors,  Up: RTL
*************** File: gccint.info,  Node: Flags,  Next:
*** 14429,14542 ****
  13.5 Flags in an RTL Expression
  ===============================
  
! RTL expressions contain several flags (one-bit bit-fields) that are
! used in certain types of expression.  Most often they are accessed with
! the following macros, which expand into lvalues.
  
! `CONSTANT_POOL_ADDRESS_P (X)'
!      Nonzero in a `symbol_ref' if it refers to part of the current
       function's constant pool.  For most targets these addresses are in
!      a `.rodata' section entirely separate from the function, but for
       some targets the addresses are close to the beginning of the
       function.  In either case GCC assumes these addresses can be
       addressed directly, perhaps with the help of base registers.
!      Stored in the `unchanging' field and printed as `/u'.
  
! `RTL_CONST_CALL_P (X)'
!      In a `call_insn' indicates that the insn represents a call to a
!      const function.  Stored in the `unchanging' field and printed as
!      `/u'.
  
! `RTL_PURE_CALL_P (X)'
!      In a `call_insn' indicates that the insn represents a call to a
!      pure function.  Stored in the `return_val' field and printed as
!      `/i'.
  
! `RTL_CONST_OR_PURE_CALL_P (X)'
!      In a `call_insn', true if `RTL_CONST_CALL_P' or `RTL_PURE_CALL_P'
       is true.
  
! `RTL_LOOPING_CONST_OR_PURE_CALL_P (X)'
!      In a `call_insn' indicates that the insn represents a possibly
       infinite looping call to a const or pure function.  Stored in the
!      `call' field and printed as `/c'.  Only true if one of
!      `RTL_CONST_CALL_P' or `RTL_PURE_CALL_P' is true.
  
! `INSN_ANNULLED_BRANCH_P (X)'
!      In a `jump_insn', `call_insn', or `insn' indicates that the branch
!      is an annulling one.  See the discussion under `sequence' below.
!      Stored in the `unchanging' field and printed as `/u'.
  
! `INSN_DELETED_P (X)'
!      In an `insn', `call_insn', `jump_insn', `code_label',
!      `jump_table_data', `barrier', or `note', nonzero if the insn has
!      been deleted.  Stored in the `volatil' field and printed as `/v'.
  
! `INSN_FROM_TARGET_P (X)'
!      In an `insn' or `jump_insn' or `call_insn' in a delay slot of a
       branch, indicates that the insn is from the target of the branch.
!      If the branch insn has `INSN_ANNULLED_BRANCH_P' set, this insn
!      will only be executed if the branch is taken.  For annulled
!      branches with `INSN_FROM_TARGET_P' clear, the insn will be
!      executed only if the branch is not taken.  When
!      `INSN_ANNULLED_BRANCH_P' is not set, this insn will always be
!      executed.  Stored in the `in_struct' field and printed as `/s'.
  
! `LABEL_PRESERVE_P (X)'
!      In a `code_label' or `note', indicates that the label is
!      referenced by code or data not visible to the RTL of a given
!      function.  Labels referenced by a non-local goto will have this
!      bit set.  Stored in the `in_struct' field and printed as `/s'.
  
! `LABEL_REF_NONLOCAL_P (X)'
!      In `label_ref' and `reg_label' expressions, nonzero if this is a
!      reference to a non-local label.  Stored in the `volatil' field and
!      printed as `/v'.
  
! `MEM_KEEP_ALIAS_SET_P (X)'
!      In `mem' expressions, 1 if we should keep the alias set for this
       mem unchanged when we access a component.  Set to 1, for example,
       when we are already in a non-addressable component of an aggregate.
!      Stored in the `jump' field and printed as `/j'.
  
! `MEM_VOLATILE_P (X)'
!      In `mem', `asm_operands', and `asm_input' expressions, nonzero for
!      volatile memory references.  Stored in the `volatil' field and
!      printed as `/v'.
  
! `MEM_NOTRAP_P (X)'
!      In `mem', nonzero for memory references that will not trap.
!      Stored in the `call' field and printed as `/c'.
  
! `MEM_POINTER (X)'
!      Nonzero in a `mem' if the memory reference holds a pointer.
!      Stored in the `frame_related' field and printed as `/f'.
  
! `REG_FUNCTION_VALUE_P (X)'
!      Nonzero in a `reg' if it is the place in which this function's
       value is going to be returned.  (This happens only in a hard
!      register.)  Stored in the `return_val' field and printed as `/i'.
  
! `REG_POINTER (X)'
!      Nonzero in a `reg' if the register holds a pointer.  Stored in the
!      `frame_related' field and printed as `/f'.
  
! `REG_USERVAR_P (X)'
!      In a `reg', nonzero if it corresponds to a variable present in the
       user's source code.  Zero for temporaries generated internally by
!      the compiler.  Stored in the `volatil' field and printed as `/v'.
  
       The same hard register may be used also for collecting the values
!      of functions called by this one, but `REG_FUNCTION_VALUE_P' is zero
       in this kind of use.
  
! `RTX_FRAME_RELATED_P (X)'
!      Nonzero in an `insn', `call_insn', `jump_insn', `barrier', or
!      `set' which is part of a function prologue and sets the stack
!      pointer, sets the frame pointer, or saves a register.  This flag
!      should also be set on an instruction that sets up a temporary
!      register to use in place of the frame pointer.  Stored in the
!      `frame_related' field and printed as `/f'.
  
       In particular, on RISC targets where there are limits on the sizes
       of immediate constants, it is sometimes impossible to reach the
--- 14275,14388 ----
  13.5 Flags in an RTL Expression
  ===============================
  
! RTL expressions contain several flags (one-bit bit-fields) that are used
! in certain types of expression.  Most often they are accessed with the
! following macros, which expand into lvalues.
  
! 'CONSTANT_POOL_ADDRESS_P (X)'
!      Nonzero in a 'symbol_ref' if it refers to part of the current
       function's constant pool.  For most targets these addresses are in
!      a '.rodata' section entirely separate from the function, but for
       some targets the addresses are close to the beginning of the
       function.  In either case GCC assumes these addresses can be
       addressed directly, perhaps with the help of base registers.
!      Stored in the 'unchanging' field and printed as '/u'.
  
! 'RTL_CONST_CALL_P (X)'
!      In a 'call_insn' indicates that the insn represents a call to a
!      const function.  Stored in the 'unchanging' field and printed as
!      '/u'.
  
! 'RTL_PURE_CALL_P (X)'
!      In a 'call_insn' indicates that the insn represents a call to a
!      pure function.  Stored in the 'return_val' field and printed as
!      '/i'.
  
! 'RTL_CONST_OR_PURE_CALL_P (X)'
!      In a 'call_insn', true if 'RTL_CONST_CALL_P' or 'RTL_PURE_CALL_P'
       is true.
  
! 'RTL_LOOPING_CONST_OR_PURE_CALL_P (X)'
!      In a 'call_insn' indicates that the insn represents a possibly
       infinite looping call to a const or pure function.  Stored in the
!      'call' field and printed as '/c'.  Only true if one of
!      'RTL_CONST_CALL_P' or 'RTL_PURE_CALL_P' is true.
  
! 'INSN_ANNULLED_BRANCH_P (X)'
!      In a 'jump_insn', 'call_insn', or 'insn' indicates that the branch
!      is an annulling one.  See the discussion under 'sequence' below.
!      Stored in the 'unchanging' field and printed as '/u'.
  
! 'INSN_DELETED_P (X)'
!      In an 'insn', 'call_insn', 'jump_insn', 'code_label',
!      'jump_table_data', 'barrier', or 'note', nonzero if the insn has
!      been deleted.  Stored in the 'volatil' field and printed as '/v'.
  
! 'INSN_FROM_TARGET_P (X)'
!      In an 'insn' or 'jump_insn' or 'call_insn' in a delay slot of a
       branch, indicates that the insn is from the target of the branch.
!      If the branch insn has 'INSN_ANNULLED_BRANCH_P' set, this insn will
!      only be executed if the branch is taken.  For annulled branches
!      with 'INSN_FROM_TARGET_P' clear, the insn will be executed only if
!      the branch is not taken.  When 'INSN_ANNULLED_BRANCH_P' is not set,
!      this insn will always be executed.  Stored in the 'in_struct' field
!      and printed as '/s'.
  
! 'LABEL_PRESERVE_P (X)'
!      In a 'code_label' or 'note', indicates that the label is referenced
!      by code or data not visible to the RTL of a given function.  Labels
!      referenced by a non-local goto will have this bit set.  Stored in
!      the 'in_struct' field and printed as '/s'.
  
! 'LABEL_REF_NONLOCAL_P (X)'
!      In 'label_ref' and 'reg_label' expressions, nonzero if this is a
!      reference to a non-local label.  Stored in the 'volatil' field and
!      printed as '/v'.
  
! 'MEM_KEEP_ALIAS_SET_P (X)'
!      In 'mem' expressions, 1 if we should keep the alias set for this
       mem unchanged when we access a component.  Set to 1, for example,
       when we are already in a non-addressable component of an aggregate.
!      Stored in the 'jump' field and printed as '/j'.
  
! 'MEM_VOLATILE_P (X)'
!      In 'mem', 'asm_operands', and 'asm_input' expressions, nonzero for
!      volatile memory references.  Stored in the 'volatil' field and
!      printed as '/v'.
  
! 'MEM_NOTRAP_P (X)'
!      In 'mem', nonzero for memory references that will not trap.  Stored
!      in the 'call' field and printed as '/c'.
  
! 'MEM_POINTER (X)'
!      Nonzero in a 'mem' if the memory reference holds a pointer.  Stored
!      in the 'frame_related' field and printed as '/f'.
  
! 'REG_FUNCTION_VALUE_P (X)'
!      Nonzero in a 'reg' if it is the place in which this function's
       value is going to be returned.  (This happens only in a hard
!      register.)  Stored in the 'return_val' field and printed as '/i'.
  
! 'REG_POINTER (X)'
!      Nonzero in a 'reg' if the register holds a pointer.  Stored in the
!      'frame_related' field and printed as '/f'.
  
! 'REG_USERVAR_P (X)'
!      In a 'reg', nonzero if it corresponds to a variable present in the
       user's source code.  Zero for temporaries generated internally by
!      the compiler.  Stored in the 'volatil' field and printed as '/v'.
  
       The same hard register may be used also for collecting the values
!      of functions called by this one, but 'REG_FUNCTION_VALUE_P' is zero
       in this kind of use.
  
! 'RTX_FRAME_RELATED_P (X)'
!      Nonzero in an 'insn', 'call_insn', 'jump_insn', 'barrier', or 'set'
!      which is part of a function prologue and sets the stack pointer,
!      sets the frame pointer, or saves a register.  This flag should also
!      be set on an instruction that sets up a temporary register to use
!      in place of the frame pointer.  Stored in the 'frame_related' field
!      and printed as '/f'.
  
       In particular, on RISC targets where there are limits on the sizes
       of immediate constants, it is sometimes impossible to reach the
*************** the following macros, which expand into
*** 14545,14564 ****
       save area, and the Canonical Frame Address, i.e., DWARF2's logical
       frame pointer, register must (temporarily) be changed to be this
       temporary register.  So, the instruction that sets this temporary
!      register must be marked as `RTX_FRAME_RELATED_P'.
  
       If the marked instruction is overly complex (defined in terms of
!      what `dwarf2out_frame_debug_expr' can handle), you will also have
!      to create a `REG_FRAME_RELATED_EXPR' note and attach it to the
       instruction.  This note should contain a simple expression of the
       computation performed by this instruction, i.e., one that
!      `dwarf2out_frame_debug_expr' can handle.
  
       This flag is required for exception handling support on targets
       with RTL prologues.
  
! `MEM_READONLY_P (X)'
!      Nonzero in a `mem', if the memory is statically allocated and
       read-only.
  
       Read-only in this context means never modified during the lifetime
--- 14391,14410 ----
       save area, and the Canonical Frame Address, i.e., DWARF2's logical
       frame pointer, register must (temporarily) be changed to be this
       temporary register.  So, the instruction that sets this temporary
!      register must be marked as 'RTX_FRAME_RELATED_P'.
  
       If the marked instruction is overly complex (defined in terms of
!      what 'dwarf2out_frame_debug_expr' can handle), you will also have
!      to create a 'REG_FRAME_RELATED_EXPR' note and attach it to the
       instruction.  This note should contain a simple expression of the
       computation performed by this instruction, i.e., one that
!      'dwarf2out_frame_debug_expr' can handle.
  
       This flag is required for exception handling support on targets
       with RTL prologues.
  
! 'MEM_READONLY_P (X)'
!      Nonzero in a 'mem', if the memory is statically allocated and
       read-only.
  
       Read-only in this context means never modified during the lifetime
*************** the following macros, which expand into
*** 14569,14776 ****
       from the runtime loader to the application, this memory will never
       be subsequently modified.
  
!      Stored in the `unchanging' field and printed as `/u'.
  
! `SCHED_GROUP_P (X)'
!      During instruction scheduling, in an `insn', `call_insn',
!      `jump_insn' or `jump_table_data', indicates that the previous insn
       must be scheduled together with this insn.  This is used to ensure
       that certain groups of instructions will not be split up by the
!      instruction scheduling pass, for example, `use' insns before a
!      `call_insn' may not be separated from the `call_insn'.  Stored in
!      the `in_struct' field and printed as `/s'.
  
! `SET_IS_RETURN_P (X)'
!      For a `set', nonzero if it is for a return.  Stored in the `jump'
!      field and printed as `/j'.
  
! `SIBLING_CALL_P (X)'
!      For a `call_insn', nonzero if the insn is a sibling call.  Stored
!      in the `jump' field and printed as `/j'.
  
! `STRING_POOL_ADDRESS_P (X)'
!      For a `symbol_ref' expression, nonzero if it addresses this
!      function's string constant pool.  Stored in the `frame_related'
!      field and printed as `/f'.
  
! `SUBREG_PROMOTED_UNSIGNED_P (X)'
!      Returns a value greater then zero for a `subreg' that has
!      `SUBREG_PROMOTED_VAR_P' nonzero if the object being referenced is
!      kept zero-extended, zero if it is kept sign-extended, and less
!      then zero if it is extended some other way via the `ptr_extend'
!      instruction.  Stored in the `unchanging' field and `volatil'
!      field, printed as `/u' and `/v'.  This macro may only be used to
!      get the value it may not be used to change the value.  Use
!      `SUBREG_PROMOTED_UNSIGNED_SET' to change the value.
  
! `SUBREG_PROMOTED_UNSIGNED_SET (X)'
!      Set the `unchanging' and `volatil' fields in a `subreg' to reflect
!      zero, sign, or other extension.  If `volatil' is zero, then
!      `unchanging' as nonzero means zero extension and as zero means
!      sign extension.  If `volatil' is nonzero then some other type of
!      extension was done via the `ptr_extend' instruction.
  
! `SUBREG_PROMOTED_VAR_P (X)'
!      Nonzero in a `subreg' if it was made when accessing an object that
!      was promoted to a wider mode in accord with the `PROMOTED_MODE'
       machine description macro (*note Storage Layout::).  In this case,
!      the mode of the `subreg' is the declared mode of the object and
!      the mode of `SUBREG_REG' is the mode of the register that holds
!      the object.  Promoted variables are always either sign- or
!      zero-extended to the wider mode on every assignment.  Stored in
!      the `in_struct' field and printed as `/s'.
  
! `SYMBOL_REF_USED (X)'
!      In a `symbol_ref', indicates that X has been used.  This is
!      normally only used to ensure that X is only declared external
!      once.  Stored in the `used' field.
  
! `SYMBOL_REF_WEAK (X)'
!      In a `symbol_ref', indicates that X has been declared weak.
!      Stored in the `return_val' field and printed as `/i'.
  
! `SYMBOL_REF_FLAG (X)'
!      In a `symbol_ref', this is used as a flag for machine-specific
!      purposes.  Stored in the `volatil' field and printed as `/v'.
  
!      Most uses of `SYMBOL_REF_FLAG' are historic and may be subsumed by
!      `SYMBOL_REF_FLAGS'.  Certainly use of `SYMBOL_REF_FLAGS' is
       mandatory if the target requires more than one bit of storage.
  
! `PREFETCH_SCHEDULE_BARRIER_P (X)'
!      In a `prefetch', indicates that the prefetch is a scheduling
       barrier.  No other INSNs will be moved over it.  Stored in the
!      `volatil' field and printed as `/v'.
  
   These are the fields to which the above macros refer:
  
! `call'
!      In a `mem', 1 means that the memory reference will not trap.
  
!      In a `call', 1 means that this pure or const call may possibly
       infinite loop.
  
!      In an RTL dump, this flag is represented as `/c'.
  
! `frame_related'
!      In an `insn' or `set' expression, 1 means that it is part of a
       function prologue and sets the stack pointer, sets the frame
       pointer, saves a register, or sets up a temporary register to use
       in place of the frame pointer.
  
!      In `reg' expressions, 1 means that the register holds a pointer.
  
!      In `mem' expressions, 1 means that the memory reference holds a
       pointer.
  
!      In `symbol_ref' expressions, 1 means that the reference addresses
       this function's string constant pool.
  
!      In an RTL dump, this flag is represented as `/f'.
  
! `in_struct'
!      In `reg' expressions, it is 1 if the register has its entire life
       contained within the test expression of some loop.
  
!      In `subreg' expressions, 1 means that the `subreg' is accessing an
       object that has had its mode promoted from a wider mode.
  
!      In `label_ref' expressions, 1 means that the referenced label is
       outside the innermost loop containing the insn in which the
!      `label_ref' was found.
  
!      In `code_label' expressions, it is 1 if the label may never be
!      deleted.  This is used for labels which are the target of
!      non-local gotos.  Such a label that would have been deleted is
!      replaced with a `note' of type `NOTE_INSN_DELETED_LABEL'.
  
!      In an `insn' during dead-code elimination, 1 means that the insn is
       dead code.
  
!      In an `insn' or `jump_insn' during reorg for an insn in the delay
       slot of a branch, 1 means that this insn is from the target of the
       branch.
  
!      In an `insn' during instruction scheduling, 1 means that this insn
       must be scheduled as part of a group together with the previous
       insn.
  
!      In an RTL dump, this flag is represented as `/s'.
  
! `return_val'
!      In `reg' expressions, 1 means the register contains the value to
!      be returned by the current function.  On machines that pass
!      parameters in registers, the same register number may be used for
!      parameters as well, but this flag is not set on such uses.
  
!      In `symbol_ref' expressions, 1 means the referenced symbol is weak.
  
!      In `call' expressions, 1 means the call is pure.
  
!      In an RTL dump, this flag is represented as `/i'.
  
! `jump'
!      In a `mem' expression, 1 means we should keep the alias set for
       this mem unchanged when we access a component.
  
!      In a `set', 1 means it is for a return.
  
!      In a `call_insn', 1 means it is a sibling call.
  
!      In an RTL dump, this flag is represented as `/j'.
  
! `unchanging'
!      In `reg' and `mem' expressions, 1 means that the value of the
       expression never changes.
  
!      In `subreg' expressions, it is 1 if the `subreg' references an
       unsigned object whose mode has been promoted to a wider mode.
  
!      In an `insn' or `jump_insn' in the delay slot of a branch
       instruction, 1 means an annulling branch should be used.
  
!      In a `symbol_ref' expression, 1 means that this symbol addresses
       something in the per-function constant pool.
  
!      In a `call_insn' 1 means that this instruction is a call to a const
       function.
  
!      In an RTL dump, this flag is represented as `/u'.
  
! `used'
       This flag is used directly (without an access macro) at the end of
       RTL generation for a function, to count the number of times an
       expression appears in insns.  Expressions that appear more than
!      once are copied, according to the rules for shared structure
!      (*note Sharing::).
  
!      For a `reg', it is used directly (without an access macro) by the
       leaf register renumbering code to ensure that each register is only
       renumbered once.
  
!      In a `symbol_ref', it indicates that an external declaration for
       the symbol has already been written.
  
! `volatil'
!      In a `mem', `asm_operands', or `asm_input' expression, it is 1 if
       the memory reference is volatile.  Volatile memory references may
       not be deleted, reordered or combined.
  
!      In a `symbol_ref' expression, it is used for machine-specific
       purposes.
  
!      In a `reg' expression, it is 1 if the value is a user-level
       variable.  0 indicates an internal compiler temporary.
  
!      In an `insn', 1 means the insn has been deleted.
  
!      In `label_ref' and `reg_label' expressions, 1 means a reference to
       a non-local label.
  
!      In `prefetch' expressions, 1 means that the containing insn is a
       scheduling barrier.
  
!      In an RTL dump, this flag is represented as `/v'.
  
  
  File: gccint.info,  Node: Machine Modes,  Next: Constants,  Prev: Flags,  Up: RTL
--- 14415,14622 ----
       from the runtime loader to the application, this memory will never
       be subsequently modified.
  
!      Stored in the 'unchanging' field and printed as '/u'.
  
! 'SCHED_GROUP_P (X)'
!      During instruction scheduling, in an 'insn', 'call_insn',
!      'jump_insn' or 'jump_table_data', indicates that the previous insn
       must be scheduled together with this insn.  This is used to ensure
       that certain groups of instructions will not be split up by the
!      instruction scheduling pass, for example, 'use' insns before a
!      'call_insn' may not be separated from the 'call_insn'.  Stored in
!      the 'in_struct' field and printed as '/s'.
  
! 'SET_IS_RETURN_P (X)'
!      For a 'set', nonzero if it is for a return.  Stored in the 'jump'
!      field and printed as '/j'.
  
! 'SIBLING_CALL_P (X)'
!      For a 'call_insn', nonzero if the insn is a sibling call.  Stored
!      in the 'jump' field and printed as '/j'.
  
! 'STRING_POOL_ADDRESS_P (X)'
!      For a 'symbol_ref' expression, nonzero if it addresses this
!      function's string constant pool.  Stored in the 'frame_related'
!      field and printed as '/f'.
  
! 'SUBREG_PROMOTED_UNSIGNED_P (X)'
!      Returns a value greater then zero for a 'subreg' that has
!      'SUBREG_PROMOTED_VAR_P' nonzero if the object being referenced is
!      kept zero-extended, zero if it is kept sign-extended, and less then
!      zero if it is extended some other way via the 'ptr_extend'
!      instruction.  Stored in the 'unchanging' field and 'volatil' field,
!      printed as '/u' and '/v'.  This macro may only be used to get the
!      value it may not be used to change the value.  Use
!      'SUBREG_PROMOTED_UNSIGNED_SET' to change the value.
  
! 'SUBREG_PROMOTED_UNSIGNED_SET (X)'
!      Set the 'unchanging' and 'volatil' fields in a 'subreg' to reflect
!      zero, sign, or other extension.  If 'volatil' is zero, then
!      'unchanging' as nonzero means zero extension and as zero means sign
!      extension.  If 'volatil' is nonzero then some other type of
!      extension was done via the 'ptr_extend' instruction.
  
! 'SUBREG_PROMOTED_VAR_P (X)'
!      Nonzero in a 'subreg' if it was made when accessing an object that
!      was promoted to a wider mode in accord with the 'PROMOTED_MODE'
       machine description macro (*note Storage Layout::).  In this case,
!      the mode of the 'subreg' is the declared mode of the object and the
!      mode of 'SUBREG_REG' is the mode of the register that holds the
!      object.  Promoted variables are always either sign- or
!      zero-extended to the wider mode on every assignment.  Stored in the
!      'in_struct' field and printed as '/s'.
  
! 'SYMBOL_REF_USED (X)'
!      In a 'symbol_ref', indicates that X has been used.  This is
!      normally only used to ensure that X is only declared external once.
!      Stored in the 'used' field.
  
! 'SYMBOL_REF_WEAK (X)'
!      In a 'symbol_ref', indicates that X has been declared weak.  Stored
!      in the 'return_val' field and printed as '/i'.
  
! 'SYMBOL_REF_FLAG (X)'
!      In a 'symbol_ref', this is used as a flag for machine-specific
!      purposes.  Stored in the 'volatil' field and printed as '/v'.
  
!      Most uses of 'SYMBOL_REF_FLAG' are historic and may be subsumed by
!      'SYMBOL_REF_FLAGS'.  Certainly use of 'SYMBOL_REF_FLAGS' is
       mandatory if the target requires more than one bit of storage.
  
! 'PREFETCH_SCHEDULE_BARRIER_P (X)'
!      In a 'prefetch', indicates that the prefetch is a scheduling
       barrier.  No other INSNs will be moved over it.  Stored in the
!      'volatil' field and printed as '/v'.
  
   These are the fields to which the above macros refer:
  
! 'call'
!      In a 'mem', 1 means that the memory reference will not trap.
  
!      In a 'call', 1 means that this pure or const call may possibly
       infinite loop.
  
!      In an RTL dump, this flag is represented as '/c'.
  
! 'frame_related'
!      In an 'insn' or 'set' expression, 1 means that it is part of a
       function prologue and sets the stack pointer, sets the frame
       pointer, saves a register, or sets up a temporary register to use
       in place of the frame pointer.
  
!      In 'reg' expressions, 1 means that the register holds a pointer.
  
!      In 'mem' expressions, 1 means that the memory reference holds a
       pointer.
  
!      In 'symbol_ref' expressions, 1 means that the reference addresses
       this function's string constant pool.
  
!      In an RTL dump, this flag is represented as '/f'.
  
! 'in_struct'
!      In 'reg' expressions, it is 1 if the register has its entire life
       contained within the test expression of some loop.
  
!      In 'subreg' expressions, 1 means that the 'subreg' is accessing an
       object that has had its mode promoted from a wider mode.
  
!      In 'label_ref' expressions, 1 means that the referenced label is
       outside the innermost loop containing the insn in which the
!      'label_ref' was found.
  
!      In 'code_label' expressions, it is 1 if the label may never be
!      deleted.  This is used for labels which are the target of non-local
!      gotos.  Such a label that would have been deleted is replaced with
!      a 'note' of type 'NOTE_INSN_DELETED_LABEL'.
  
!      In an 'insn' during dead-code elimination, 1 means that the insn is
       dead code.
  
!      In an 'insn' or 'jump_insn' during reorg for an insn in the delay
       slot of a branch, 1 means that this insn is from the target of the
       branch.
  
!      In an 'insn' during instruction scheduling, 1 means that this insn
       must be scheduled as part of a group together with the previous
       insn.
  
!      In an RTL dump, this flag is represented as '/s'.
  
! 'return_val'
!      In 'reg' expressions, 1 means the register contains the value to be
!      returned by the current function.  On machines that pass parameters
!      in registers, the same register number may be used for parameters
!      as well, but this flag is not set on such uses.
  
!      In 'symbol_ref' expressions, 1 means the referenced symbol is weak.
  
!      In 'call' expressions, 1 means the call is pure.
  
!      In an RTL dump, this flag is represented as '/i'.
  
! 'jump'
!      In a 'mem' expression, 1 means we should keep the alias set for
       this mem unchanged when we access a component.
  
!      In a 'set', 1 means it is for a return.
  
!      In a 'call_insn', 1 means it is a sibling call.
  
!      In an RTL dump, this flag is represented as '/j'.
  
! 'unchanging'
!      In 'reg' and 'mem' expressions, 1 means that the value of the
       expression never changes.
  
!      In 'subreg' expressions, it is 1 if the 'subreg' references an
       unsigned object whose mode has been promoted to a wider mode.
  
!      In an 'insn' or 'jump_insn' in the delay slot of a branch
       instruction, 1 means an annulling branch should be used.
  
!      In a 'symbol_ref' expression, 1 means that this symbol addresses
       something in the per-function constant pool.
  
!      In a 'call_insn' 1 means that this instruction is a call to a const
       function.
  
!      In an RTL dump, this flag is represented as '/u'.
  
! 'used'
       This flag is used directly (without an access macro) at the end of
       RTL generation for a function, to count the number of times an
       expression appears in insns.  Expressions that appear more than
!      once are copied, according to the rules for shared structure (*note
!      Sharing::).
  
!      For a 'reg', it is used directly (without an access macro) by the
       leaf register renumbering code to ensure that each register is only
       renumbered once.
  
!      In a 'symbol_ref', it indicates that an external declaration for
       the symbol has already been written.
  
! 'volatil'
!      In a 'mem', 'asm_operands', or 'asm_input' expression, it is 1 if
       the memory reference is volatile.  Volatile memory references may
       not be deleted, reordered or combined.
  
!      In a 'symbol_ref' expression, it is used for machine-specific
       purposes.
  
!      In a 'reg' expression, it is 1 if the value is a user-level
       variable.  0 indicates an internal compiler temporary.
  
!      In an 'insn', 1 means the insn has been deleted.
  
!      In 'label_ref' and 'reg_label' expressions, 1 means a reference to
       a non-local label.
  
!      In 'prefetch' expressions, 1 means that the containing insn is a
       scheduling barrier.
  
!      In an RTL dump, this flag is represented as '/v'.
  
  
  File: gccint.info,  Node: Machine Modes,  Next: Constants,  Prev: Flags,  Up: RTL
*************** File: gccint.info,  Node: Machine Modes,
*** 14780,15149 ****
  
  A machine mode describes a size of data object and the representation
  used for it.  In the C code, machine modes are represented by an
! enumeration type, `machine_mode', defined in `machmode.def'.  Each RTL
  expression has room for a machine mode and so do certain kinds of tree
  expressions (declarations and types, to be precise).
  
   In debugging dumps and machine descriptions, the machine mode of an RTL
  expression is written after the expression code with a colon to separate
! them.  The letters `mode' which appear at the end of each machine mode
! name are omitted.  For example, `(reg:SI 38)' is a `reg' expression
! with machine mode `SImode'.  If the mode is `VOIDmode', it is not
! written at all.
  
   Here is a table of machine modes.  The term "byte" below refers to an
! object of `BITS_PER_UNIT' bits (*note Storage Layout::).
  
! `BImode'
       "Bit" mode represents a single bit, for predicate registers.
  
! `QImode'
       "Quarter-Integer" mode represents a single byte treated as an
       integer.
  
! `HImode'
       "Half-Integer" mode represents a two-byte integer.
  
! `PSImode'
       "Partial Single Integer" mode represents an integer which occupies
       four bytes but which doesn't really use all four.  On some
       machines, this is the right mode to use for pointers.
  
! `SImode'
       "Single Integer" mode represents a four-byte integer.
  
! `PDImode'
       "Partial Double Integer" mode represents an integer which occupies
       eight bytes but which doesn't really use all eight.  On some
       machines, this is the right mode to use for certain pointers.
  
! `DImode'
       "Double Integer" mode represents an eight-byte integer.
  
! `TImode'
!      "Tetra Integer" (?) mode represents a sixteen-byte integer.
  
! `OImode'
!      "Octa Integer" (?) mode represents a thirty-two-byte integer.
  
! `XImode'
!      "Hexadeca Integer" (?) mode represents a sixty-four-byte integer.
  
! `QFmode'
       "Quarter-Floating" mode represents a quarter-precision (single
       byte) floating point number.
  
! `HFmode'
       "Half-Floating" mode represents a half-precision (two byte)
       floating point number.
  
! `TQFmode'
!      "Three-Quarter-Floating" (?) mode represents a
       three-quarter-precision (three byte) floating point number.
  
! `SFmode'
       "Single Floating" mode represents a four byte floating point
       number.  In the common case, of a processor with IEEE arithmetic
       and 8-bit bytes, this is a single-precision IEEE floating point
       number; it can also be used for double-precision (on processors
       with 16-bit bytes) and single-precision VAX and IBM types.
  
! `DFmode'
       "Double Floating" mode represents an eight byte floating point
       number.  In the common case, of a processor with IEEE arithmetic
       and 8-bit bytes, this is a double-precision IEEE floating point
       number.
  
! `XFmode'
       "Extended Floating" mode represents an IEEE extended floating point
       number.  This mode only has 80 meaningful bits (ten bytes).  Some
       processors require such numbers to be padded to twelve bytes,
       others to sixteen; this mode is used for either.
  
! `SDmode'
       "Single Decimal Floating" mode represents a four byte decimal
       floating point number (as distinct from conventional binary
       floating point).
  
! `DDmode'
       "Double Decimal Floating" mode represents an eight byte decimal
       floating point number.
  
! `TDmode'
       "Tetra Decimal Floating" mode represents a sixteen byte decimal
       floating point number all 128 of whose bits are meaningful.
  
! `TFmode'
       "Tetra Floating" mode represents a sixteen byte floating point
       number all 128 of whose bits are meaningful.  One common use is the
       IEEE quad-precision format.
  
! `QQmode'
       "Quarter-Fractional" mode represents a single byte treated as a
       signed fractional number.  The default format is "s.7".
  
! `HQmode'
       "Half-Fractional" mode represents a two-byte signed fractional
       number.  The default format is "s.15".
  
! `SQmode'
       "Single Fractional" mode represents a four-byte signed fractional
       number.  The default format is "s.31".
  
! `DQmode'
!      "Double Fractional" mode represents an eight-byte signed
!      fractional number.  The default format is "s.63".
  
! `TQmode'
!      "Tetra Fractional" mode represents a sixteen-byte signed
!      fractional number.  The default format is "s.127".
  
! `UQQmode'
!      "Unsigned Quarter-Fractional" mode represents a single byte
!      treated as an unsigned fractional number.  The default format is
!      ".8".
  
! `UHQmode'
       "Unsigned Half-Fractional" mode represents a two-byte unsigned
       fractional number.  The default format is ".16".
  
! `USQmode'
       "Unsigned Single Fractional" mode represents a four-byte unsigned
       fractional number.  The default format is ".32".
  
! `UDQmode'
       "Unsigned Double Fractional" mode represents an eight-byte unsigned
       fractional number.  The default format is ".64".
  
! `UTQmode'
       "Unsigned Tetra Fractional" mode represents a sixteen-byte unsigned
       fractional number.  The default format is ".128".
  
! `HAmode'
       "Half-Accumulator" mode represents a two-byte signed accumulator.
       The default format is "s8.7".
  
! `SAmode'
       "Single Accumulator" mode represents a four-byte signed
       accumulator.  The default format is "s16.15".
  
! `DAmode'
       "Double Accumulator" mode represents an eight-byte signed
       accumulator.  The default format is "s32.31".
  
! `TAmode'
       "Tetra Accumulator" mode represents a sixteen-byte signed
       accumulator.  The default format is "s64.63".
  
! `UHAmode'
       "Unsigned Half-Accumulator" mode represents a two-byte unsigned
       accumulator.  The default format is "8.8".
  
! `USAmode'
       "Unsigned Single Accumulator" mode represents a four-byte unsigned
       accumulator.  The default format is "16.16".
  
! `UDAmode'
       "Unsigned Double Accumulator" mode represents an eight-byte
       unsigned accumulator.  The default format is "32.32".
  
! `UTAmode'
       "Unsigned Tetra Accumulator" mode represents a sixteen-byte
       unsigned accumulator.  The default format is "64.64".
  
! `CCmode'
       "Condition Code" mode represents the value of a condition code,
       which is a machine-specific set of bits used to represent the
!      result of a comparison operation.  Other machine-specific modes
!      may also be used for the condition code.  These modes are not used
!      on machines that use `cc0' (*note Condition Code::).
  
! `BLKmode'
       "Block" mode represents values that are aggregates to which none of
       the other modes apply.  In RTL, only memory references can have
       this mode, and only if they appear in string-move or vector
       instructions.  On machines which have no such instructions,
!      `BLKmode' will not appear in RTL.
  
! `VOIDmode'
       Void mode means the absence of a mode or an unspecified mode.  For
!      example, RTL expressions of code `const_int' have mode `VOIDmode'
       because they can be taken to have whatever mode the context
!      requires.  In debugging dumps of RTL, `VOIDmode' is expressed by
       the absence of any mode.
  
! `QCmode, HCmode, SCmode, DCmode, XCmode, TCmode'
       These modes stand for a complex number represented as a pair of
!      floating point values.  The floating point values are in `QFmode',
!      `HFmode', `SFmode', `DFmode', `XFmode', and `TFmode', respectively.
  
! `CQImode, CHImode, CSImode, CDImode, CTImode, COImode'
       These modes stand for a complex number represented as a pair of
!      integer values.  The integer values are in `QImode', `HImode',
!      `SImode', `DImode', `TImode', and `OImode', respectively.
  
! `BND32mode BND64mode'
       These modes stand for bounds for pointer of 32 and 64 bit size
       respectively.  Mode size is double pointer mode size.
  
!  The machine description defines `Pmode' as a C macro which expands
! into the machine mode used for addresses.  Normally this is the mode
! whose size is `BITS_PER_WORD', `SImode' on 32-bit machines.
  
!  The only modes which a machine description must support are `QImode',
! and the modes corresponding to `BITS_PER_WORD', `FLOAT_TYPE_SIZE' and
! `DOUBLE_TYPE_SIZE'.  The compiler will attempt to use `DImode' for
  8-byte structures and unions, but this can be prevented by overriding
! the definition of `MAX_FIXED_MODE_SIZE'.  Alternatively, you can have
! the compiler use `TImode' for 16-byte structures and unions.  Likewise,
! you can arrange for the C type `short int' to avoid using `HImode'.
  
   Very few explicit references to machine modes remain in the compiler
  and these few references will soon be removed.  Instead, the machine
  modes are divided into mode classes.  These are represented by the
! enumeration type `enum mode_class' defined in `machmode.h'.  The
  possible mode classes are:
  
! `MODE_INT'
!      Integer modes.  By default these are `BImode', `QImode', `HImode',
!      `SImode', `DImode', `TImode', and `OImode'.
  
! `MODE_PARTIAL_INT'
!      The "partial integer" modes, `PQImode', `PHImode', `PSImode' and
!      `PDImode'.
  
! `MODE_FLOAT'
!      Floating point modes.  By default these are `QFmode', `HFmode',
!      `TQFmode', `SFmode', `DFmode', `XFmode' and `TFmode'.
  
! `MODE_DECIMAL_FLOAT'
!      Decimal floating point modes.  By default these are `SDmode',
!      `DDmode' and `TDmode'.
  
! `MODE_FRACT'
!      Signed fractional modes.  By default these are `QQmode', `HQmode',
!      `SQmode', `DQmode' and `TQmode'.
  
! `MODE_UFRACT'
!      Unsigned fractional modes.  By default these are `UQQmode',
!      `UHQmode', `USQmode', `UDQmode' and `UTQmode'.
  
! `MODE_ACCUM'
!      Signed accumulator modes.  By default these are `HAmode',
!      `SAmode', `DAmode' and `TAmode'.
  
! `MODE_UACCUM'
!      Unsigned accumulator modes.  By default these are `UHAmode',
!      `USAmode', `UDAmode' and `UTAmode'.
  
! `MODE_COMPLEX_INT'
       Complex integer modes.  (These are not currently implemented).
  
! `MODE_COMPLEX_FLOAT'
!      Complex floating point modes.  By default these are `QCmode',
!      `HCmode', `SCmode', `DCmode', `XCmode', and `TCmode'.
  
! `MODE_FUNCTION'
       Algol or Pascal function variables including a static chain.
       (These are not currently implemented).
  
! `MODE_CC'
!      Modes representing condition code values.  These are `CCmode' plus
!      any `CC_MODE' modes listed in the `MACHINE-modes.def'.  *Note Jump
       Patterns::, also see *note Condition Code::.
  
! `MODE_POINTER_BOUNDS'
       Pointer bounds modes.  Used to represent values of pointer bounds
       type.  Operations in these modes may be executed as NOPs depending
       on hardware features and environment setup.
  
! `MODE_RANDOM'
       This is a catchall mode class for modes which don't fit into the
!      above classes.  Currently `VOIDmode' and `BLKmode' are in
!      `MODE_RANDOM'.
  
   Here are some C macros that relate to machine modes:
  
! `GET_MODE (X)'
       Returns the machine mode of the RTX X.
  
! `PUT_MODE (X, NEWMODE)'
       Alters the machine mode of the RTX X to be NEWMODE.
  
! `NUM_MACHINE_MODES'
       Stands for the number of machine modes available on the target
       machine.  This is one greater than the largest numeric value of any
       machine mode.
  
! `GET_MODE_NAME (M)'
       Returns the name of mode M as a string.
  
! `GET_MODE_CLASS (M)'
       Returns the mode class of mode M.
  
! `GET_MODE_WIDER_MODE (M)'
       Returns the next wider natural mode.  For example, the expression
!      `GET_MODE_WIDER_MODE (QImode)' returns `HImode'.
  
! `GET_MODE_SIZE (M)'
       Returns the size in bytes of a datum of mode M.
  
! `GET_MODE_BITSIZE (M)'
       Returns the size in bits of a datum of mode M.
  
! `GET_MODE_IBIT (M)'
       Returns the number of integral bits of a datum of fixed-point mode
       M.
  
! `GET_MODE_FBIT (M)'
       Returns the number of fractional bits of a datum of fixed-point
       mode M.
  
! `GET_MODE_MASK (M)'
       Returns a bitmask containing 1 for all bits in a word that fit
!      within mode M.  This macro can only be used for modes whose
!      bitsize is less than or equal to `HOST_BITS_PER_INT'.
  
! `GET_MODE_ALIGNMENT (M)'
       Return the required alignment, in bits, for an object of mode M.
  
! `GET_MODE_UNIT_SIZE (M)'
       Returns the size in bytes of the subunits of a datum of mode M.
!      This is the same as `GET_MODE_SIZE' except in the case of complex
       modes.  For them, the unit size is the size of the real or
       imaginary part.
  
! `GET_MODE_NUNITS (M)'
       Returns the number of units contained in a mode, i.e.,
!      `GET_MODE_SIZE' divided by `GET_MODE_UNIT_SIZE'.
  
! `GET_CLASS_NARROWEST_MODE (C)'
       Returns the narrowest mode in mode class C.
  
!  The following 3 variables are defined on every target.   They can be
  used to allocate buffers that are guaranteed to be large enough to hold
! any value that can be represented on the target.   The first two can be
  overridden by defining them in the target's mode.def file, however, the
  value must be a constant that can determined very early in the
! compilation process.   The third symbol cannot be overridden.
  
! `BITS_PER_UNIT'
       The number of bits in an addressable storage unit (byte).  If you
       do not define this, the default is 8.
  
! `MAX_BITSIZE_MODE_ANY_INT'
       The maximum bitsize of any mode that is used in integer math.  This
       should be overridden by the target if it uses large integers as
!      containers for larger vectors but otherwise never uses the
!      contents to compute integer values.
  
! `MAX_BITSIZE_MODE_ANY_MODE'
       The bitsize of the largest mode on the target.
  
!  The global variables `byte_mode' and `word_mode' contain modes whose
! classes are `MODE_INT' and whose bitsizes are either `BITS_PER_UNIT' or
! `BITS_PER_WORD', respectively.  On 32-bit machines, these are `QImode'
! and `SImode', respectively.
  
  
  File: gccint.info,  Node: Constants,  Next: Regs and Memory,  Prev: Machine Modes,  Up: RTL
--- 14626,14994 ----
  
  A machine mode describes a size of data object and the representation
  used for it.  In the C code, machine modes are represented by an
! enumeration type, 'machine_mode', defined in 'machmode.def'.  Each RTL
  expression has room for a machine mode and so do certain kinds of tree
  expressions (declarations and types, to be precise).
  
   In debugging dumps and machine descriptions, the machine mode of an RTL
  expression is written after the expression code with a colon to separate
! them.  The letters 'mode' which appear at the end of each machine mode
! name are omitted.  For example, '(reg:SI 38)' is a 'reg' expression with
! machine mode 'SImode'.  If the mode is 'VOIDmode', it is not written at
! all.
  
   Here is a table of machine modes.  The term "byte" below refers to an
! object of 'BITS_PER_UNIT' bits (*note Storage Layout::).
  
! 'BImode'
       "Bit" mode represents a single bit, for predicate registers.
  
! 'QImode'
       "Quarter-Integer" mode represents a single byte treated as an
       integer.
  
! 'HImode'
       "Half-Integer" mode represents a two-byte integer.
  
! 'PSImode'
       "Partial Single Integer" mode represents an integer which occupies
       four bytes but which doesn't really use all four.  On some
       machines, this is the right mode to use for pointers.
  
! 'SImode'
       "Single Integer" mode represents a four-byte integer.
  
! 'PDImode'
       "Partial Double Integer" mode represents an integer which occupies
       eight bytes but which doesn't really use all eight.  On some
       machines, this is the right mode to use for certain pointers.
  
! 'DImode'
       "Double Integer" mode represents an eight-byte integer.
  
! 'TImode'
!      "Tetra Integer" (?)  mode represents a sixteen-byte integer.
  
! 'OImode'
!      "Octa Integer" (?)  mode represents a thirty-two-byte integer.
  
! 'XImode'
!      "Hexadeca Integer" (?)  mode represents a sixty-four-byte integer.
  
! 'QFmode'
       "Quarter-Floating" mode represents a quarter-precision (single
       byte) floating point number.
  
! 'HFmode'
       "Half-Floating" mode represents a half-precision (two byte)
       floating point number.
  
! 'TQFmode'
!      "Three-Quarter-Floating" (?)  mode represents a
       three-quarter-precision (three byte) floating point number.
  
! 'SFmode'
       "Single Floating" mode represents a four byte floating point
       number.  In the common case, of a processor with IEEE arithmetic
       and 8-bit bytes, this is a single-precision IEEE floating point
       number; it can also be used for double-precision (on processors
       with 16-bit bytes) and single-precision VAX and IBM types.
  
! 'DFmode'
       "Double Floating" mode represents an eight byte floating point
       number.  In the common case, of a processor with IEEE arithmetic
       and 8-bit bytes, this is a double-precision IEEE floating point
       number.
  
! 'XFmode'
       "Extended Floating" mode represents an IEEE extended floating point
       number.  This mode only has 80 meaningful bits (ten bytes).  Some
       processors require such numbers to be padded to twelve bytes,
       others to sixteen; this mode is used for either.
  
! 'SDmode'
       "Single Decimal Floating" mode represents a four byte decimal
       floating point number (as distinct from conventional binary
       floating point).
  
! 'DDmode'
       "Double Decimal Floating" mode represents an eight byte decimal
       floating point number.
  
! 'TDmode'
       "Tetra Decimal Floating" mode represents a sixteen byte decimal
       floating point number all 128 of whose bits are meaningful.
  
! 'TFmode'
       "Tetra Floating" mode represents a sixteen byte floating point
       number all 128 of whose bits are meaningful.  One common use is the
       IEEE quad-precision format.
  
! 'QQmode'
       "Quarter-Fractional" mode represents a single byte treated as a
       signed fractional number.  The default format is "s.7".
  
! 'HQmode'
       "Half-Fractional" mode represents a two-byte signed fractional
       number.  The default format is "s.15".
  
! 'SQmode'
       "Single Fractional" mode represents a four-byte signed fractional
       number.  The default format is "s.31".
  
! 'DQmode'
!      "Double Fractional" mode represents an eight-byte signed fractional
!      number.  The default format is "s.63".
  
! 'TQmode'
!      "Tetra Fractional" mode represents a sixteen-byte signed fractional
!      number.  The default format is "s.127".
  
! 'UQQmode'
!      "Unsigned Quarter-Fractional" mode represents a single byte treated
!      as an unsigned fractional number.  The default format is ".8".
  
! 'UHQmode'
       "Unsigned Half-Fractional" mode represents a two-byte unsigned
       fractional number.  The default format is ".16".
  
! 'USQmode'
       "Unsigned Single Fractional" mode represents a four-byte unsigned
       fractional number.  The default format is ".32".
  
! 'UDQmode'
       "Unsigned Double Fractional" mode represents an eight-byte unsigned
       fractional number.  The default format is ".64".
  
! 'UTQmode'
       "Unsigned Tetra Fractional" mode represents a sixteen-byte unsigned
       fractional number.  The default format is ".128".
  
! 'HAmode'
       "Half-Accumulator" mode represents a two-byte signed accumulator.
       The default format is "s8.7".
  
! 'SAmode'
       "Single Accumulator" mode represents a four-byte signed
       accumulator.  The default format is "s16.15".
  
! 'DAmode'
       "Double Accumulator" mode represents an eight-byte signed
       accumulator.  The default format is "s32.31".
  
! 'TAmode'
       "Tetra Accumulator" mode represents a sixteen-byte signed
       accumulator.  The default format is "s64.63".
  
! 'UHAmode'
       "Unsigned Half-Accumulator" mode represents a two-byte unsigned
       accumulator.  The default format is "8.8".
  
! 'USAmode'
       "Unsigned Single Accumulator" mode represents a four-byte unsigned
       accumulator.  The default format is "16.16".
  
! 'UDAmode'
       "Unsigned Double Accumulator" mode represents an eight-byte
       unsigned accumulator.  The default format is "32.32".
  
! 'UTAmode'
       "Unsigned Tetra Accumulator" mode represents a sixteen-byte
       unsigned accumulator.  The default format is "64.64".
  
! 'CCmode'
       "Condition Code" mode represents the value of a condition code,
       which is a machine-specific set of bits used to represent the
!      result of a comparison operation.  Other machine-specific modes may
!      also be used for the condition code.  These modes are not used on
!      machines that use 'cc0' (*note Condition Code::).
  
! 'BLKmode'
       "Block" mode represents values that are aggregates to which none of
       the other modes apply.  In RTL, only memory references can have
       this mode, and only if they appear in string-move or vector
       instructions.  On machines which have no such instructions,
!      'BLKmode' will not appear in RTL.
  
! 'VOIDmode'
       Void mode means the absence of a mode or an unspecified mode.  For
!      example, RTL expressions of code 'const_int' have mode 'VOIDmode'
       because they can be taken to have whatever mode the context
!      requires.  In debugging dumps of RTL, 'VOIDmode' is expressed by
       the absence of any mode.
  
! 'QCmode, HCmode, SCmode, DCmode, XCmode, TCmode'
       These modes stand for a complex number represented as a pair of
!      floating point values.  The floating point values are in 'QFmode',
!      'HFmode', 'SFmode', 'DFmode', 'XFmode', and 'TFmode', respectively.
  
! 'CQImode, CHImode, CSImode, CDImode, CTImode, COImode'
       These modes stand for a complex number represented as a pair of
!      integer values.  The integer values are in 'QImode', 'HImode',
!      'SImode', 'DImode', 'TImode', and 'OImode', respectively.
  
! 'BND32mode BND64mode'
       These modes stand for bounds for pointer of 32 and 64 bit size
       respectively.  Mode size is double pointer mode size.
  
!  The machine description defines 'Pmode' as a C macro which expands into
! the machine mode used for addresses.  Normally this is the mode whose
! size is 'BITS_PER_WORD', 'SImode' on 32-bit machines.
  
!  The only modes which a machine description must support are 'QImode',
! and the modes corresponding to 'BITS_PER_WORD', 'FLOAT_TYPE_SIZE' and
! 'DOUBLE_TYPE_SIZE'.  The compiler will attempt to use 'DImode' for
  8-byte structures and unions, but this can be prevented by overriding
! the definition of 'MAX_FIXED_MODE_SIZE'.  Alternatively, you can have
! the compiler use 'TImode' for 16-byte structures and unions.  Likewise,
! you can arrange for the C type 'short int' to avoid using 'HImode'.
  
   Very few explicit references to machine modes remain in the compiler
  and these few references will soon be removed.  Instead, the machine
  modes are divided into mode classes.  These are represented by the
! enumeration type 'enum mode_class' defined in 'machmode.h'.  The
  possible mode classes are:
  
! 'MODE_INT'
!      Integer modes.  By default these are 'BImode', 'QImode', 'HImode',
!      'SImode', 'DImode', 'TImode', and 'OImode'.
  
! 'MODE_PARTIAL_INT'
!      The "partial integer" modes, 'PQImode', 'PHImode', 'PSImode' and
!      'PDImode'.
  
! 'MODE_FLOAT'
!      Floating point modes.  By default these are 'QFmode', 'HFmode',
!      'TQFmode', 'SFmode', 'DFmode', 'XFmode' and 'TFmode'.
  
! 'MODE_DECIMAL_FLOAT'
!      Decimal floating point modes.  By default these are 'SDmode',
!      'DDmode' and 'TDmode'.
  
! 'MODE_FRACT'
!      Signed fractional modes.  By default these are 'QQmode', 'HQmode',
!      'SQmode', 'DQmode' and 'TQmode'.
  
! 'MODE_UFRACT'
!      Unsigned fractional modes.  By default these are 'UQQmode',
!      'UHQmode', 'USQmode', 'UDQmode' and 'UTQmode'.
  
! 'MODE_ACCUM'
!      Signed accumulator modes.  By default these are 'HAmode', 'SAmode',
!      'DAmode' and 'TAmode'.
  
! 'MODE_UACCUM'
!      Unsigned accumulator modes.  By default these are 'UHAmode',
!      'USAmode', 'UDAmode' and 'UTAmode'.
  
! 'MODE_COMPLEX_INT'
       Complex integer modes.  (These are not currently implemented).
  
! 'MODE_COMPLEX_FLOAT'
!      Complex floating point modes.  By default these are 'QCmode',
!      'HCmode', 'SCmode', 'DCmode', 'XCmode', and 'TCmode'.
  
! 'MODE_FUNCTION'
       Algol or Pascal function variables including a static chain.
       (These are not currently implemented).
  
! 'MODE_CC'
!      Modes representing condition code values.  These are 'CCmode' plus
!      any 'CC_MODE' modes listed in the 'MACHINE-modes.def'.  *Note Jump
       Patterns::, also see *note Condition Code::.
  
! 'MODE_POINTER_BOUNDS'
       Pointer bounds modes.  Used to represent values of pointer bounds
       type.  Operations in these modes may be executed as NOPs depending
       on hardware features and environment setup.
  
! 'MODE_RANDOM'
       This is a catchall mode class for modes which don't fit into the
!      above classes.  Currently 'VOIDmode' and 'BLKmode' are in
!      'MODE_RANDOM'.
  
   Here are some C macros that relate to machine modes:
  
! 'GET_MODE (X)'
       Returns the machine mode of the RTX X.
  
! 'PUT_MODE (X, NEWMODE)'
       Alters the machine mode of the RTX X to be NEWMODE.
  
! 'NUM_MACHINE_MODES'
       Stands for the number of machine modes available on the target
       machine.  This is one greater than the largest numeric value of any
       machine mode.
  
! 'GET_MODE_NAME (M)'
       Returns the name of mode M as a string.
  
! 'GET_MODE_CLASS (M)'
       Returns the mode class of mode M.
  
! 'GET_MODE_WIDER_MODE (M)'
       Returns the next wider natural mode.  For example, the expression
!      'GET_MODE_WIDER_MODE (QImode)' returns 'HImode'.
  
! 'GET_MODE_SIZE (M)'
       Returns the size in bytes of a datum of mode M.
  
! 'GET_MODE_BITSIZE (M)'
       Returns the size in bits of a datum of mode M.
  
! 'GET_MODE_IBIT (M)'
       Returns the number of integral bits of a datum of fixed-point mode
       M.
  
! 'GET_MODE_FBIT (M)'
       Returns the number of fractional bits of a datum of fixed-point
       mode M.
  
! 'GET_MODE_MASK (M)'
       Returns a bitmask containing 1 for all bits in a word that fit
!      within mode M.  This macro can only be used for modes whose bitsize
!      is less than or equal to 'HOST_BITS_PER_INT'.
  
! 'GET_MODE_ALIGNMENT (M)'
       Return the required alignment, in bits, for an object of mode M.
  
! 'GET_MODE_UNIT_SIZE (M)'
       Returns the size in bytes of the subunits of a datum of mode M.
!      This is the same as 'GET_MODE_SIZE' except in the case of complex
       modes.  For them, the unit size is the size of the real or
       imaginary part.
  
! 'GET_MODE_NUNITS (M)'
       Returns the number of units contained in a mode, i.e.,
!      'GET_MODE_SIZE' divided by 'GET_MODE_UNIT_SIZE'.
  
! 'GET_CLASS_NARROWEST_MODE (C)'
       Returns the narrowest mode in mode class C.
  
!  The following 3 variables are defined on every target.  They can be
  used to allocate buffers that are guaranteed to be large enough to hold
! any value that can be represented on the target.  The first two can be
  overridden by defining them in the target's mode.def file, however, the
  value must be a constant that can determined very early in the
! compilation process.  The third symbol cannot be overridden.
  
! 'BITS_PER_UNIT'
       The number of bits in an addressable storage unit (byte).  If you
       do not define this, the default is 8.
  
! 'MAX_BITSIZE_MODE_ANY_INT'
       The maximum bitsize of any mode that is used in integer math.  This
       should be overridden by the target if it uses large integers as
!      containers for larger vectors but otherwise never uses the contents
!      to compute integer values.
  
! 'MAX_BITSIZE_MODE_ANY_MODE'
       The bitsize of the largest mode on the target.
  
!  The global variables 'byte_mode' and 'word_mode' contain modes whose
! classes are 'MODE_INT' and whose bitsizes are either 'BITS_PER_UNIT' or
! 'BITS_PER_WORD', respectively.  On 32-bit machines, these are 'QImode'
! and 'SImode', respectively.
  
  
  File: gccint.info,  Node: Constants,  Next: Regs and Memory,  Prev: Machine Modes,  Up: RTL
*************** File: gccint.info,  Node: Constants,  Ne
*** 15153,15317 ****
  
  The simplest RTL expressions are those that represent constant values.
  
! `(const_int I)'
       This type of expression represents the integer value I.  I is
!      customarily accessed with the macro `INTVAL' as in `INTVAL (EXP)',
!      which is equivalent to `XWINT (EXP, 0)'.
  
       Constants generated for modes with fewer bits than in
!      `HOST_WIDE_INT' must be sign extended to full width (e.g., with
!      `gen_int_mode').  For constants for modes with more bits than in
!      `HOST_WIDE_INT' the implied high order bits of that constant are
       copies of the top bit.  Note however that values are neither
       inherently signed nor inherently unsigned; where necessary,
       signedness is determined by the rtl operation instead.
  
       There is only one expression object for the integer value zero; it
!      is the value of the variable `const0_rtx'.  Likewise, the only
!      expression for integer value one is found in `const1_rtx', the only
!      expression for integer value two is found in `const2_rtx', and the
       only expression for integer value negative one is found in
!      `constm1_rtx'.  Any attempt to create an expression of code
!      `const_int' and value zero, one, two or negative one will return
!      `const0_rtx', `const1_rtx', `const2_rtx' or `constm1_rtx' as
       appropriate.
  
       Similarly, there is only one object for the integer whose value is
!      `STORE_FLAG_VALUE'.  It is found in `const_true_rtx'.  If
!      `STORE_FLAG_VALUE' is one, `const_true_rtx' and `const1_rtx' will
!      point to the same object.  If `STORE_FLAG_VALUE' is -1,
!      `const_true_rtx' and `constm1_rtx' will point to the same object.
  
! `(const_double:M I0 I1 ...)'
       This represents either a floating-point constant of mode M or (on
!      older ports that do not define `TARGET_SUPPORTS_WIDE_INT') an
!      integer constant too large to fit into `HOST_BITS_PER_WIDE_INT'
       bits but small enough to fit within twice that number of bits.  In
!      the latter case, M will be `VOIDmode'.  For integral values
       constants for modes with more bits than twice the number in
!      `HOST_WIDE_INT' the implied high order bits of that constant are
!      copies of the top bit of `CONST_DOUBLE_HIGH'.  Note however that
       integral values are neither inherently signed nor inherently
       unsigned; where necessary, signedness is determined by the rtl
       operation instead.
  
!      On more modern ports, `CONST_DOUBLE' only represents floating
!      point values.  New ports define `TARGET_SUPPORTS_WIDE_INT' to make
!      this designation.
  
!      If M is `VOIDmode', the bits of the value are stored in I0 and I1.
!      I0 is customarily accessed with the macro `CONST_DOUBLE_LOW' and
!      I1 with `CONST_DOUBLE_HIGH'.
  
       If the constant is floating point (regardless of its precision),
       then the number of integers used to store the value depends on the
!      size of `REAL_VALUE_TYPE' (*note Floating Point::).  The integers
       represent a floating point number, but not precisely in the target
!      machine's or host machine's floating point format.  To convert
!      them to the precise bit pattern used by the target machine, use
!      the macro `REAL_VALUE_TO_TARGET_DOUBLE' and friends (*note Data
       Output::).
  
! `(const_wide_int:M NUNITS ELT0 ...)'
!      This contains an array of `HOST_WIDE_INT's that is large enough to
       hold any constant that can be represented on the target.  This form
       of rtl is only used on targets that define
!      `TARGET_SUPPORTS_WIDE_INT' to be nonzero and then `CONST_DOUBLE's
       are only used to hold floating-point values.  If the target leaves
!      `TARGET_SUPPORTS_WIDE_INT' defined as 0, `CONST_WIDE_INT's are not
!      used and `CONST_DOUBLE's are as they were before.
  
       The values are stored in a compressed format.  The higher-order 0s
       or -1s are not represented if they are just the logical sign
       extension of the number that is represented.
  
! `CONST_WIDE_INT_VEC (CODE)'
!      Returns the entire array of `HOST_WIDE_INT's that are used to
!      store the value.  This macro should be rarely used.
  
! `CONST_WIDE_INT_NUNITS (CODE)'
!      The number of `HOST_WIDE_INT's used to represent the number.  Note
!      that this generally is smaller than the number of `HOST_WIDE_INT's
       implied by the mode size.
  
! `CONST_WIDE_INT_NUNITS (CODE,I)'
!      Returns the `i'th element of the array.   Element 0 is contains
!      the low order bits of the constant.
  
! `(const_fixed:M ...)'
!      Represents a fixed-point constant of mode M.  The operand is a
!      data structure of type `struct fixed_value' and is accessed with
!      the macro `CONST_FIXED_VALUE'.  The high part of data is accessed
!      with `CONST_FIXED_VALUE_HIGH'; the low part is accessed with
!      `CONST_FIXED_VALUE_LOW'.
  
! `(const_vector:M [X0 X1 ...])'
       Represents a vector constant.  The square brackets stand for the
       vector containing the constant elements.  X0, X1 and so on are the
!      `const_int', `const_double' or `const_fixed' elements.
  
!      The number of units in a `const_vector' is obtained with the macro
!      `CONST_VECTOR_NUNITS' as in `CONST_VECTOR_NUNITS (V)'.
  
       Individual elements in a vector constant are accessed with the
!      macro `CONST_VECTOR_ELT' as in `CONST_VECTOR_ELT (V, N)' where V
!      is the vector constant and N is the element desired.
  
! `(const_string STR)'
       Represents a constant string with value STR.  Currently this is
       used only for insn attributes (*note Insn Attributes::) since
       constant strings in C are placed in memory.
  
! `(symbol_ref:MODE SYMBOL)'
       Represents the value of an assembler label for data.  SYMBOL is a
       string that describes the name of the assembler label.  If it
!      starts with a `*', the label is the rest of SYMBOL not including
!      the `*'.  Otherwise, the label is SYMBOL, usually prefixed with
!      `_'.
  
!      The `symbol_ref' contains a mode, which is usually `Pmode'.
       Usually that is the only mode for which a symbol is directly valid.
  
! `(label_ref:MODE LABEL)'
       Represents the value of an assembler label for code.  It contains
!      one operand, an expression, which must be a `code_label' or a
!      `note' of type `NOTE_INSN_DELETED_LABEL' that appears in the
       instruction sequence to identify the place where the label should
       go.
  
       The reason for using a distinct expression type for code label
       references is so that jump optimization can distinguish them.
  
!      The `label_ref' contains a mode, which is usually `Pmode'.
!      Usually that is the only mode for which a label is directly valid.
  
! `(const:M EXP)'
       Represents a constant that is the result of an assembly-time
       arithmetic computation.  The operand, EXP, is an expression that
!      contains only constants (`const_int', `symbol_ref' and `label_ref'
!      expressions) combined with `plus' and `minus'.  However, not all
       combinations are valid, since the assembler cannot do arbitrary
       arithmetic on relocatable symbols.
  
!      M should be `Pmode'.
  
! `(high:M EXP)'
!      Represents the high-order bits of EXP, usually a `symbol_ref'.
!      The number of bits is machine-dependent and is normally the number
!      of bits specified in an instruction that initializes the high
!      order bits of a register.  It is used with `lo_sum' to represent
!      the typical two-instruction sequence used in RISC machines to
!      reference a global memory location.
  
!      M should be `Pmode'.
  
!  The macro `CONST0_RTX (MODE)' refers to an expression with value 0 in
! mode MODE.  If mode MODE is of mode class `MODE_INT', it returns
! `const0_rtx'.  If mode MODE is of mode class `MODE_FLOAT', it returns a
! `CONST_DOUBLE' expression in mode MODE.  Otherwise, it returns a
! `CONST_VECTOR' expression in mode MODE.  Similarly, the macro
! `CONST1_RTX (MODE)' refers to an expression with value 1 in mode MODE
! and similarly for `CONST2_RTX'.  The `CONST1_RTX' and `CONST2_RTX'
  macros are undefined for vector modes.
  
  
--- 14998,15162 ----
  
  The simplest RTL expressions are those that represent constant values.
  
! '(const_int I)'
       This type of expression represents the integer value I.  I is
!      customarily accessed with the macro 'INTVAL' as in 'INTVAL (EXP)',
!      which is equivalent to 'XWINT (EXP, 0)'.
  
       Constants generated for modes with fewer bits than in
!      'HOST_WIDE_INT' must be sign extended to full width (e.g., with
!      'gen_int_mode').  For constants for modes with more bits than in
!      'HOST_WIDE_INT' the implied high order bits of that constant are
       copies of the top bit.  Note however that values are neither
       inherently signed nor inherently unsigned; where necessary,
       signedness is determined by the rtl operation instead.
  
       There is only one expression object for the integer value zero; it
!      is the value of the variable 'const0_rtx'.  Likewise, the only
!      expression for integer value one is found in 'const1_rtx', the only
!      expression for integer value two is found in 'const2_rtx', and the
       only expression for integer value negative one is found in
!      'constm1_rtx'.  Any attempt to create an expression of code
!      'const_int' and value zero, one, two or negative one will return
!      'const0_rtx', 'const1_rtx', 'const2_rtx' or 'constm1_rtx' as
       appropriate.
  
       Similarly, there is only one object for the integer whose value is
!      'STORE_FLAG_VALUE'.  It is found in 'const_true_rtx'.  If
!      'STORE_FLAG_VALUE' is one, 'const_true_rtx' and 'const1_rtx' will
!      point to the same object.  If 'STORE_FLAG_VALUE' is -1,
!      'const_true_rtx' and 'constm1_rtx' will point to the same object.
  
! '(const_double:M I0 I1 ...)'
       This represents either a floating-point constant of mode M or (on
!      older ports that do not define 'TARGET_SUPPORTS_WIDE_INT') an
!      integer constant too large to fit into 'HOST_BITS_PER_WIDE_INT'
       bits but small enough to fit within twice that number of bits.  In
!      the latter case, M will be 'VOIDmode'.  For integral values
       constants for modes with more bits than twice the number in
!      'HOST_WIDE_INT' the implied high order bits of that constant are
!      copies of the top bit of 'CONST_DOUBLE_HIGH'.  Note however that
       integral values are neither inherently signed nor inherently
       unsigned; where necessary, signedness is determined by the rtl
       operation instead.
  
!      On more modern ports, 'CONST_DOUBLE' only represents floating point
!      values.  New ports define 'TARGET_SUPPORTS_WIDE_INT' to make this
!      designation.
  
!      If M is 'VOIDmode', the bits of the value are stored in I0 and I1.
!      I0 is customarily accessed with the macro 'CONST_DOUBLE_LOW' and I1
!      with 'CONST_DOUBLE_HIGH'.
  
       If the constant is floating point (regardless of its precision),
       then the number of integers used to store the value depends on the
!      size of 'REAL_VALUE_TYPE' (*note Floating Point::).  The integers
       represent a floating point number, but not precisely in the target
!      machine's or host machine's floating point format.  To convert them
!      to the precise bit pattern used by the target machine, use the
!      macro 'REAL_VALUE_TO_TARGET_DOUBLE' and friends (*note Data
       Output::).
  
! '(const_wide_int:M NUNITS ELT0 ...)'
!      This contains an array of 'HOST_WIDE_INT's that is large enough to
       hold any constant that can be represented on the target.  This form
       of rtl is only used on targets that define
!      'TARGET_SUPPORTS_WIDE_INT' to be nonzero and then 'CONST_DOUBLE's
       are only used to hold floating-point values.  If the target leaves
!      'TARGET_SUPPORTS_WIDE_INT' defined as 0, 'CONST_WIDE_INT's are not
!      used and 'CONST_DOUBLE's are as they were before.
  
       The values are stored in a compressed format.  The higher-order 0s
       or -1s are not represented if they are just the logical sign
       extension of the number that is represented.
  
! 'CONST_WIDE_INT_VEC (CODE)'
!      Returns the entire array of 'HOST_WIDE_INT's that are used to store
!      the value.  This macro should be rarely used.
  
! 'CONST_WIDE_INT_NUNITS (CODE)'
!      The number of 'HOST_WIDE_INT's used to represent the number.  Note
!      that this generally is smaller than the number of 'HOST_WIDE_INT's
       implied by the mode size.
  
! 'CONST_WIDE_INT_NUNITS (CODE,I)'
!      Returns the 'i'th element of the array.  Element 0 is contains the
!      low order bits of the constant.
  
! '(const_fixed:M ...)'
!      Represents a fixed-point constant of mode M.  The operand is a data
!      structure of type 'struct fixed_value' and is accessed with the
!      macro 'CONST_FIXED_VALUE'.  The high part of data is accessed with
!      'CONST_FIXED_VALUE_HIGH'; the low part is accessed with
!      'CONST_FIXED_VALUE_LOW'.
  
! '(const_vector:M [X0 X1 ...])'
       Represents a vector constant.  The square brackets stand for the
       vector containing the constant elements.  X0, X1 and so on are the
!      'const_int', 'const_double' or 'const_fixed' elements.
  
!      The number of units in a 'const_vector' is obtained with the macro
!      'CONST_VECTOR_NUNITS' as in 'CONST_VECTOR_NUNITS (V)'.
  
       Individual elements in a vector constant are accessed with the
!      macro 'CONST_VECTOR_ELT' as in 'CONST_VECTOR_ELT (V, N)' where V is
!      the vector constant and N is the element desired.
  
! '(const_string STR)'
       Represents a constant string with value STR.  Currently this is
       used only for insn attributes (*note Insn Attributes::) since
       constant strings in C are placed in memory.
  
! '(symbol_ref:MODE SYMBOL)'
       Represents the value of an assembler label for data.  SYMBOL is a
       string that describes the name of the assembler label.  If it
!      starts with a '*', the label is the rest of SYMBOL not including
!      the '*'.  Otherwise, the label is SYMBOL, usually prefixed with
!      '_'.
  
!      The 'symbol_ref' contains a mode, which is usually 'Pmode'.
       Usually that is the only mode for which a symbol is directly valid.
  
! '(label_ref:MODE LABEL)'
       Represents the value of an assembler label for code.  It contains
!      one operand, an expression, which must be a 'code_label' or a
!      'note' of type 'NOTE_INSN_DELETED_LABEL' that appears in the
       instruction sequence to identify the place where the label should
       go.
  
       The reason for using a distinct expression type for code label
       references is so that jump optimization can distinguish them.
  
!      The 'label_ref' contains a mode, which is usually 'Pmode'.  Usually
!      that is the only mode for which a label is directly valid.
  
! '(const:M EXP)'
       Represents a constant that is the result of an assembly-time
       arithmetic computation.  The operand, EXP, is an expression that
!      contains only constants ('const_int', 'symbol_ref' and 'label_ref'
!      expressions) combined with 'plus' and 'minus'.  However, not all
       combinations are valid, since the assembler cannot do arbitrary
       arithmetic on relocatable symbols.
  
!      M should be 'Pmode'.
  
! '(high:M EXP)'
!      Represents the high-order bits of EXP, usually a 'symbol_ref'.  The
!      number of bits is machine-dependent and is normally the number of
!      bits specified in an instruction that initializes the high order
!      bits of a register.  It is used with 'lo_sum' to represent the
!      typical two-instruction sequence used in RISC machines to reference
!      a global memory location.
  
!      M should be 'Pmode'.
  
!  The macro 'CONST0_RTX (MODE)' refers to an expression with value 0 in
! mode MODE.  If mode MODE is of mode class 'MODE_INT', it returns
! 'const0_rtx'.  If mode MODE is of mode class 'MODE_FLOAT', it returns a
! 'CONST_DOUBLE' expression in mode MODE.  Otherwise, it returns a
! 'CONST_VECTOR' expression in mode MODE.  Similarly, the macro
! 'CONST1_RTX (MODE)' refers to an expression with value 1 in mode MODE
! and similarly for 'CONST2_RTX'.  The 'CONST1_RTX' and 'CONST2_RTX'
  macros are undefined for vector modes.
  
  
*************** File: gccint.info,  Node: Regs and Memor
*** 15323,15331 ****
  Here are the RTL expression types for describing access to machine
  registers and to main memory.
  
! `(reg:M N)'
       For small values of the integer N (those that are less than
!      `FIRST_PSEUDO_REGISTER'), this stands for a reference to machine
       register number N: a "hard register".  For larger values of N, it
       stands for a temporary value or "pseudo register".  The compiler's
       strategy is to generate code assuming an unlimited number of such
--- 15168,15176 ----
  Here are the RTL expression types for describing access to machine
  registers and to main memory.
  
! '(reg:M N)'
       For small values of the integer N (those that are less than
!      'FIRST_PSEUDO_REGISTER'), this stands for a reference to machine
       register number N: a "hard register".  For larger values of N, it
       stands for a temporary value or "pseudo register".  The compiler's
       strategy is to generate code assuming an unlimited number of such
*************** registers and to main memory.
*** 15342,15348 ****
       Even for a register that the machine can access in only one mode,
       the mode must always be specified.
  
!      The symbol `FIRST_PSEUDO_REGISTER' is defined by the machine
       description, since the number of hard registers on the machine is
       an invariant characteristic of the machine.  Note, however, that
       not all of the machine registers must be general registers.  All
--- 15187,15193 ----
       Even for a register that the machine can access in only one mode,
       the mode must always be specified.
  
!      The symbol 'FIRST_PSEUDO_REGISTER' is defined by the machine
       description, since the number of hard registers on the machine is
       an invariant characteristic of the machine.  Note, however, that
       not all of the machine registers must be general registers.  All
*************** registers and to main memory.
*** 15353,15496 ****
       A hard register may be accessed in various modes throughout one
       function, but each pseudo register is given a natural mode and is
       accessed only in that mode.  When it is necessary to describe an
!      access to a pseudo register using a nonnatural mode, a `subreg'
       expression is used.
  
!      A `reg' expression with a machine mode that specifies more than
!      one word of data may actually stand for several consecutive
!      registers.  If in addition the register number specifies a
!      hardware register, then it actually represents several consecutive
!      hardware registers starting with the specified one.
  
       Each pseudo register number used in a function's RTL code is
!      represented by a unique `reg' expression.
  
       Some pseudo register numbers, those within the range of
!      `FIRST_VIRTUAL_REGISTER' to `LAST_VIRTUAL_REGISTER' only appear
       during the RTL generation phase and are eliminated before the
       optimization phases.  These represent locations in the stack frame
!      that cannot be determined until RTL generation for the function
!      has been completed.  The following virtual register numbers are
       defined:
  
!     `VIRTUAL_INCOMING_ARGS_REGNUM'
!           This points to the first word of the incoming arguments
!           passed on the stack.  Normally these arguments are placed
!           there by the caller, but the callee may have pushed some
!           arguments that were previously passed in registers.
  
            When RTL generation is complete, this virtual register is
            replaced by the sum of the register given by
!           `ARG_POINTER_REGNUM' and the value of `FIRST_PARM_OFFSET'.
  
!     `VIRTUAL_STACK_VARS_REGNUM'
!           If `FRAME_GROWS_DOWNWARD' is defined to a nonzero value, this
            points to immediately above the first variable on the stack.
            Otherwise, it points to the first variable on the stack.
  
!           `VIRTUAL_STACK_VARS_REGNUM' is replaced with the sum of the
!           register given by `FRAME_POINTER_REGNUM' and the value
!           `STARTING_FRAME_OFFSET'.
  
!     `VIRTUAL_STACK_DYNAMIC_REGNUM'
!           This points to the location of dynamically allocated memory
!           on the stack immediately after the stack pointer has been
            adjusted by the amount of memory desired.
  
            This virtual register is replaced by the sum of the register
!           given by `STACK_POINTER_REGNUM' and the value
!           `STACK_DYNAMIC_OFFSET'.
  
!     `VIRTUAL_OUTGOING_ARGS_REGNUM'
            This points to the location in the stack at which outgoing
            arguments should be written when the stack is pre-pushed
            (arguments pushed using push insns should always use
!           `STACK_POINTER_REGNUM').
  
            This virtual register is replaced by the sum of the register
!           given by `STACK_POINTER_REGNUM' and the value
!           `STACK_POINTER_OFFSET'.
  
! `(subreg:M1 REG:M2 BYTENUM)'
!      `subreg' expressions are used to refer to a register in a machine
       mode other than its natural one, or to refer to one register of a
!      multi-part `reg' that actually refers to several registers.
  
       Each pseudo register has a natural mode.  If it is necessary to
!      operate on it in a different mode, the register must be enclosed
!      in a `subreg'.
  
       There are currently three supported types for the first operand of
!      a `subreg':
!         * pseudo registers This is the most common case.  Most
!           `subreg's have pseudo `reg's as their first operand.
  
!         * mem `subreg's of `mem' were common in earlier versions of GCC
            and are still supported.  During the reload pass these are
!           replaced by plain `mem's.  On machines that do not do
!           instruction scheduling, use of `subreg's of `mem' are still
!           used, but this is no longer recommended.  Such `subreg's are
!           considered to be `register_operand's rather than
!           `memory_operand's before and during reload.  Because of this,
            the scheduling passes cannot properly schedule instructions
!           with `subreg's of `mem', so for machines that do scheduling,
!           `subreg's of `mem' should never be used.  To support this,
!           the combine and recog passes have explicit code to inhibit
!           the creation of `subreg's of `mem' when `INSN_SCHEDULING' is
            defined.
  
!           The use of `subreg's of `mem' after the reload pass is an area
            that is not well understood and should be avoided.  There is
!           still some code in the compiler to support this, but this
!           code has possibly rotted.  This use of `subreg's is
!           discouraged and will most likely not be supported in the
!           future.
  
          * hard registers It is seldom necessary to wrap hard registers
!           in `subreg's; such registers would normally reduce to a
!           single `reg' rtx.  This use of `subreg's is discouraged and
!           may not be supported in the future.
! 
  
!      `subreg's of `subreg's are not supported.  Using
!      `simplify_gen_subreg' is the recommended way to avoid this problem.
  
!      `subreg's come in two distinct flavors, each having its own usage
       and rules:
  
!     Paradoxical subregs
!           When M1 is strictly wider than M2, the `subreg' expression is
            called "paradoxical".  The canonical test for this class of
!           `subreg' is:
  
                 GET_MODE_SIZE (M1) > GET_MODE_SIZE (M2)
  
!           Paradoxical `subreg's can be used as both lvalues and rvalues.
            When used as an lvalue, the low-order bits of the source value
!           are stored in REG and the high-order bits are discarded.
!           When used as an rvalue, the low-order bits of the `subreg' are
            taken from REG while the high-order bits may or may not be
            defined.
  
            The high-order bits of rvalues are in the following
            circumstances:
  
!              * `subreg's of `mem' When M2 is smaller than a word, the
!                macro `LOAD_EXTEND_OP', can control how the high-order
                 bits are defined.
  
!              * `subreg' of `reg's The upper bits are defined when
!                `SUBREG_PROMOTED_VAR_P' is true.
!                `SUBREG_PROMOTED_UNSIGNED_P' describes what the upper
                 bits hold.  Such subregs usually represent local
                 variables, register variables and parameter pseudo
                 variables that have been promoted to a wider mode.
  
! 
!           BYTENUM is always zero for a paradoxical `subreg', even on
            big-endian targets.
  
!           For example, the paradoxical `subreg':
  
                 (set (subreg:SI (reg:HI X) 0) Y)
  
--- 15198,15339 ----
       A hard register may be accessed in various modes throughout one
       function, but each pseudo register is given a natural mode and is
       accessed only in that mode.  When it is necessary to describe an
!      access to a pseudo register using a nonnatural mode, a 'subreg'
       expression is used.
  
!      A 'reg' expression with a machine mode that specifies more than one
!      word of data may actually stand for several consecutive registers.
!      If in addition the register number specifies a hardware register,
!      then it actually represents several consecutive hardware registers
!      starting with the specified one.
  
       Each pseudo register number used in a function's RTL code is
!      represented by a unique 'reg' expression.
  
       Some pseudo register numbers, those within the range of
!      'FIRST_VIRTUAL_REGISTER' to 'LAST_VIRTUAL_REGISTER' only appear
       during the RTL generation phase and are eliminated before the
       optimization phases.  These represent locations in the stack frame
!      that cannot be determined until RTL generation for the function has
!      been completed.  The following virtual register numbers are
       defined:
  
!      'VIRTUAL_INCOMING_ARGS_REGNUM'
!           This points to the first word of the incoming arguments passed
!           on the stack.  Normally these arguments are placed there by
!           the caller, but the callee may have pushed some arguments that
!           were previously passed in registers.
  
            When RTL generation is complete, this virtual register is
            replaced by the sum of the register given by
!           'ARG_POINTER_REGNUM' and the value of 'FIRST_PARM_OFFSET'.
  
!      'VIRTUAL_STACK_VARS_REGNUM'
!           If 'FRAME_GROWS_DOWNWARD' is defined to a nonzero value, this
            points to immediately above the first variable on the stack.
            Otherwise, it points to the first variable on the stack.
  
!           'VIRTUAL_STACK_VARS_REGNUM' is replaced with the sum of the
!           register given by 'FRAME_POINTER_REGNUM' and the value
!           'STARTING_FRAME_OFFSET'.
  
!      'VIRTUAL_STACK_DYNAMIC_REGNUM'
!           This points to the location of dynamically allocated memory on
!           the stack immediately after the stack pointer has been
            adjusted by the amount of memory desired.
  
            This virtual register is replaced by the sum of the register
!           given by 'STACK_POINTER_REGNUM' and the value
!           'STACK_DYNAMIC_OFFSET'.
  
!      'VIRTUAL_OUTGOING_ARGS_REGNUM'
            This points to the location in the stack at which outgoing
            arguments should be written when the stack is pre-pushed
            (arguments pushed using push insns should always use
!           'STACK_POINTER_REGNUM').
  
            This virtual register is replaced by the sum of the register
!           given by 'STACK_POINTER_REGNUM' and the value
!           'STACK_POINTER_OFFSET'.
  
! '(subreg:M1 REG:M2 BYTENUM)'
! 
!      'subreg' expressions are used to refer to a register in a machine
       mode other than its natural one, or to refer to one register of a
!      multi-part 'reg' that actually refers to several registers.
  
       Each pseudo register has a natural mode.  If it is necessary to
!      operate on it in a different mode, the register must be enclosed in
!      a 'subreg'.
  
       There are currently three supported types for the first operand of
!      a 'subreg':
!         * pseudo registers This is the most common case.  Most 'subreg's
!           have pseudo 'reg's as their first operand.
  
!         * mem 'subreg's of 'mem' were common in earlier versions of GCC
            and are still supported.  During the reload pass these are
!           replaced by plain 'mem's.  On machines that do not do
!           instruction scheduling, use of 'subreg's of 'mem' are still
!           used, but this is no longer recommended.  Such 'subreg's are
!           considered to be 'register_operand's rather than
!           'memory_operand's before and during reload.  Because of this,
            the scheduling passes cannot properly schedule instructions
!           with 'subreg's of 'mem', so for machines that do scheduling,
!           'subreg's of 'mem' should never be used.  To support this, the
!           combine and recog passes have explicit code to inhibit the
!           creation of 'subreg's of 'mem' when 'INSN_SCHEDULING' is
            defined.
  
!           The use of 'subreg's of 'mem' after the reload pass is an area
            that is not well understood and should be avoided.  There is
!           still some code in the compiler to support this, but this code
!           has possibly rotted.  This use of 'subreg's is discouraged and
!           will most likely not be supported in the future.
  
          * hard registers It is seldom necessary to wrap hard registers
!           in 'subreg's; such registers would normally reduce to a single
!           'reg' rtx.  This use of 'subreg's is discouraged and may not
!           be supported in the future.
  
!      'subreg's of 'subreg's are not supported.  Using
!      'simplify_gen_subreg' is the recommended way to avoid this problem.
  
!      'subreg's come in two distinct flavors, each having its own usage
       and rules:
  
!      Paradoxical subregs
!           When M1 is strictly wider than M2, the 'subreg' expression is
            called "paradoxical".  The canonical test for this class of
!           'subreg' is:
  
                 GET_MODE_SIZE (M1) > GET_MODE_SIZE (M2)
  
!           Paradoxical 'subreg's can be used as both lvalues and rvalues.
            When used as an lvalue, the low-order bits of the source value
!           are stored in REG and the high-order bits are discarded.  When
!           used as an rvalue, the low-order bits of the 'subreg' are
            taken from REG while the high-order bits may or may not be
            defined.
  
            The high-order bits of rvalues are in the following
            circumstances:
  
!              * 'subreg's of 'mem' When M2 is smaller than a word, the
!                macro 'LOAD_EXTEND_OP', can control how the high-order
                 bits are defined.
  
!              * 'subreg' of 'reg's The upper bits are defined when
!                'SUBREG_PROMOTED_VAR_P' is true.
!                'SUBREG_PROMOTED_UNSIGNED_P' describes what the upper
                 bits hold.  Such subregs usually represent local
                 variables, register variables and parameter pseudo
                 variables that have been promoted to a wider mode.
  
!           BYTENUM is always zero for a paradoxical 'subreg', even on
            big-endian targets.
  
!           For example, the paradoxical 'subreg':
  
                 (set (subreg:SI (reg:HI X) 0) Y)
  
*************** registers and to main memory.
*** 15500,15627 ****
                 (set Z (subreg:SI (reg:HI X) 0))
  
            would set the lower two bytes of Z to Y and set the upper two
!           bytes to an unknown value assuming `SUBREG_PROMOTED_VAR_P' is
            false.
  
!     Normal subregs
!           When M1 is at least as narrow as M2 the `subreg' expression
!           is called "normal".
  
!           Normal `subreg's restrict consideration to certain bits of
            REG.  There are two cases.  If M1 is smaller than a word, the
!           `subreg' refers to the least-significant part (or "lowpart")
            of one word of REG.  If M1 is word-sized or greater, the
!           `subreg' refers to one or more complete words.
  
!           When used as an lvalue, `subreg' is a word-based accessor.
!           Storing to a `subreg' modifies all the words of REG that
!           overlap the `subreg', but it leaves the other words of REG
            alone.
  
!           When storing to a normal `subreg' that is smaller than a word,
            the other bits of the referenced word are usually left in an
            undefined state.  This laxity makes it easier to generate
            efficient code for such instructions.  To represent an
            instruction that preserves all the bits outside of those in
!           the `subreg', use `strict_low_part' or `zero_extract' around
!           the `subreg'.
  
            BYTENUM must identify the offset of the first byte of the
!           `subreg' from the start of REG, assuming that REG is laid out
            in memory order.  The memory order of bytes is defined by two
!           target macros, `WORDS_BIG_ENDIAN' and `BYTES_BIG_ENDIAN':
  
!              * `WORDS_BIG_ENDIAN', if set to 1, says that byte number
                 zero is part of the most significant word; otherwise, it
                 is part of the least significant word.
  
!              * `BYTES_BIG_ENDIAN', if set to 1, says that byte number
                 zero is the most significant byte within a word;
                 otherwise, it is the least significant byte within a
                 word.
  
!           On a few targets, `FLOAT_WORDS_BIG_ENDIAN' disagrees with
!           `WORDS_BIG_ENDIAN'.  However, most parts of the compiler treat
            floating point values as if they had the same endianness as
!           integer values.  This works because they handle them solely
!           as a collection of integer values, with no particular
!           numerical value.  Only real.c and the runtime libraries care
!           about `FLOAT_WORDS_BIG_ENDIAN'.
  
            Thus,
  
                 (subreg:HI (reg:SI X) 2)
  
!           on a `BYTES_BIG_ENDIAN', `UNITS_PER_WORD == 4' target is the
            same as
  
                 (subreg:HI (reg:SI X) 0)
  
!           on a little-endian, `UNITS_PER_WORD == 4' target.  Both
!           `subreg's access the lower two bytes of register X.
! 
  
!      A `MODE_PARTIAL_INT' mode behaves as if it were as wide as the
!      corresponding `MODE_INT' mode, except that it has an unknown
!      number of undefined bits.  For example:
  
            (subreg:PSI (reg:SI 0) 0)
  
!      accesses the whole of `(reg:SI 0)', but the exact relationship
!      between the `PSImode' value and the `SImode' value is not defined.
!      If we assume `UNITS_PER_WORD <= 4', then the following two
!      `subreg's:
  
            (subreg:PSI (reg:DI 0) 0)
            (subreg:PSI (reg:DI 0) 4)
  
!      represent independent 4-byte accesses to the two halves of
!      `(reg:DI 0)'.  Both `subreg's have an unknown number of undefined
!      bits.
  
!      If `UNITS_PER_WORD <= 2' then these two `subreg's:
  
            (subreg:HI (reg:PSI 0) 0)
            (subreg:HI (reg:PSI 0) 2)
  
       represent independent 2-byte accesses that together span the whole
!      of `(reg:PSI 0)'.  Storing to the first `subreg' does not affect
!      the value of the second, and vice versa.  `(reg:PSI 0)' has an
       unknown number of undefined bits, so the assignment:
  
            (set (subreg:HI (reg:PSI 0) 0) (reg:HI 4))
  
!      does not guarantee that `(subreg:HI (reg:PSI 0) 0)' has the value
!      `(reg:HI 4)'.
  
       The rules above apply to both pseudo REGs and hard REGs.  If the
!      semantics are not correct for particular combinations of M1, M2
!      and hard REG, the target-specific code must ensure that those
       combinations are never used.  For example:
  
            CANNOT_CHANGE_MODE_CLASS (M2, M1, CLASS)
  
       must be true for every class CLASS that includes REG.
  
!      The first operand of a `subreg' expression is customarily accessed
!      with the `SUBREG_REG' macro and the second operand is customarily
!      accessed with the `SUBREG_BYTE' macro.
  
       It has been several years since a platform in which
!      `BYTES_BIG_ENDIAN' not equal to `WORDS_BIG_ENDIAN' has been
!      tested.  Anyone wishing to support such a platform in the future
!      may be confronted with code rot.
  
! `(scratch:M)'
       This represents a scratch register that will be required for the
       execution of a single instruction and not used subsequently.  It is
!      converted into a `reg' by either the local register allocator or
       the reload pass.
  
!      `scratch' is usually present inside a `clobber' operation (*note
       Side Effects::).
  
! `(cc0)'
       This refers to the machine's condition code register.  It has no
       operands and may not have a machine mode.  There are two ways to
       use it:
--- 15343,15468 ----
                 (set Z (subreg:SI (reg:HI X) 0))
  
            would set the lower two bytes of Z to Y and set the upper two
!           bytes to an unknown value assuming 'SUBREG_PROMOTED_VAR_P' is
            false.
  
!      Normal subregs
!           When M1 is at least as narrow as M2 the 'subreg' expression is
!           called "normal".
  
!           Normal 'subreg's restrict consideration to certain bits of
            REG.  There are two cases.  If M1 is smaller than a word, the
!           'subreg' refers to the least-significant part (or "lowpart")
            of one word of REG.  If M1 is word-sized or greater, the
!           'subreg' refers to one or more complete words.
  
!           When used as an lvalue, 'subreg' is a word-based accessor.
!           Storing to a 'subreg' modifies all the words of REG that
!           overlap the 'subreg', but it leaves the other words of REG
            alone.
  
!           When storing to a normal 'subreg' that is smaller than a word,
            the other bits of the referenced word are usually left in an
            undefined state.  This laxity makes it easier to generate
            efficient code for such instructions.  To represent an
            instruction that preserves all the bits outside of those in
!           the 'subreg', use 'strict_low_part' or 'zero_extract' around
!           the 'subreg'.
  
            BYTENUM must identify the offset of the first byte of the
!           'subreg' from the start of REG, assuming that REG is laid out
            in memory order.  The memory order of bytes is defined by two
!           target macros, 'WORDS_BIG_ENDIAN' and 'BYTES_BIG_ENDIAN':
  
!              * 'WORDS_BIG_ENDIAN', if set to 1, says that byte number
                 zero is part of the most significant word; otherwise, it
                 is part of the least significant word.
  
!              * 'BYTES_BIG_ENDIAN', if set to 1, says that byte number
                 zero is the most significant byte within a word;
                 otherwise, it is the least significant byte within a
                 word.
  
!           On a few targets, 'FLOAT_WORDS_BIG_ENDIAN' disagrees with
!           'WORDS_BIG_ENDIAN'.  However, most parts of the compiler treat
            floating point values as if they had the same endianness as
!           integer values.  This works because they handle them solely as
!           a collection of integer values, with no particular numerical
!           value.  Only real.c and the runtime libraries care about
!           'FLOAT_WORDS_BIG_ENDIAN'.
  
            Thus,
  
                 (subreg:HI (reg:SI X) 2)
  
!           on a 'BYTES_BIG_ENDIAN', 'UNITS_PER_WORD == 4' target is the
            same as
  
                 (subreg:HI (reg:SI X) 0)
  
!           on a little-endian, 'UNITS_PER_WORD == 4' target.  Both
!           'subreg's access the lower two bytes of register X.
  
!      A 'MODE_PARTIAL_INT' mode behaves as if it were as wide as the
!      corresponding 'MODE_INT' mode, except that it has an unknown number
!      of undefined bits.  For example:
  
            (subreg:PSI (reg:SI 0) 0)
  
!      accesses the whole of '(reg:SI 0)', but the exact relationship
!      between the 'PSImode' value and the 'SImode' value is not defined.
!      If we assume 'UNITS_PER_WORD <= 4', then the following two
!      'subreg's:
  
            (subreg:PSI (reg:DI 0) 0)
            (subreg:PSI (reg:DI 0) 4)
  
!      represent independent 4-byte accesses to the two halves of '(reg:DI
!      0)'.  Both 'subreg's have an unknown number of undefined bits.
  
!      If 'UNITS_PER_WORD <= 2' then these two 'subreg's:
  
            (subreg:HI (reg:PSI 0) 0)
            (subreg:HI (reg:PSI 0) 2)
  
       represent independent 2-byte accesses that together span the whole
!      of '(reg:PSI 0)'.  Storing to the first 'subreg' does not affect
!      the value of the second, and vice versa.  '(reg:PSI 0)' has an
       unknown number of undefined bits, so the assignment:
  
            (set (subreg:HI (reg:PSI 0) 0) (reg:HI 4))
  
!      does not guarantee that '(subreg:HI (reg:PSI 0) 0)' has the value
!      '(reg:HI 4)'.
  
       The rules above apply to both pseudo REGs and hard REGs.  If the
!      semantics are not correct for particular combinations of M1, M2 and
!      hard REG, the target-specific code must ensure that those
       combinations are never used.  For example:
  
            CANNOT_CHANGE_MODE_CLASS (M2, M1, CLASS)
  
       must be true for every class CLASS that includes REG.
  
!      The first operand of a 'subreg' expression is customarily accessed
!      with the 'SUBREG_REG' macro and the second operand is customarily
!      accessed with the 'SUBREG_BYTE' macro.
  
       It has been several years since a platform in which
!      'BYTES_BIG_ENDIAN' not equal to 'WORDS_BIG_ENDIAN' has been tested.
!      Anyone wishing to support such a platform in the future may be
!      confronted with code rot.
  
! '(scratch:M)'
       This represents a scratch register that will be required for the
       execution of a single instruction and not used subsequently.  It is
!      converted into a 'reg' by either the local register allocator or
       the reload pass.
  
!      'scratch' is usually present inside a 'clobber' operation (*note
       Side Effects::).
  
! '(cc0)'
       This refers to the machine's condition code register.  It has no
       operands and may not have a machine mode.  There are two ways to
       use it:
*************** registers and to main memory.
*** 15630,15668 ****
            best on most machines, where each comparison sets the entire
            series of flags.
  
!           With this technique, `(cc0)' may be validly used in only two
            contexts: as the destination of an assignment (in test and
            compare instructions) and in comparison operators comparing
!           against zero (`const_int' with value zero; that is to say,
!           `const0_rtx').
  
          * To stand for a single flag that is the result of a single
!           condition.  This is useful on machines that have only a
!           single flag bit, and in which comparison instructions must
!           specify the condition to test.
  
!           With this technique, `(cc0)' may be validly used in only two
            contexts: as the destination of an assignment (in test and
            compare instructions) where the source is a comparison
!           operator, and as the first operand of `if_then_else' (in a
            conditional branch).
  
!      There is only one expression object of code `cc0'; it is the value
!      of the variable `cc0_rtx'.  Any attempt to create an expression of
!      code `cc0' will return `cc0_rtx'.
  
       Instructions can set the condition code implicitly.  On many
       machines, nearly all instructions set the condition code based on
       the value that they compute or store.  It is not necessary to
       record these actions explicitly in the RTL because the machine
       description includes a prescription for recognizing the
!      instructions that do so (by means of the macro
!      `NOTICE_UPDATE_CC').  *Note Condition Code::.  Only instructions
!      whose sole purpose is to set the condition code, and instructions
!      that use the condition code, need mention `(cc0)'.
  
       On some machines, the condition code register is given a register
!      number and a `reg' is used instead of `(cc0)'.  This is usually the
       preferable approach if only a small subset of instructions modify
       the condition code.  Other machines store condition codes in
       general registers; in such cases a pseudo register should be used.
--- 15471,15509 ----
            best on most machines, where each comparison sets the entire
            series of flags.
  
!           With this technique, '(cc0)' may be validly used in only two
            contexts: as the destination of an assignment (in test and
            compare instructions) and in comparison operators comparing
!           against zero ('const_int' with value zero; that is to say,
!           'const0_rtx').
  
          * To stand for a single flag that is the result of a single
!           condition.  This is useful on machines that have only a single
!           flag bit, and in which comparison instructions must specify
!           the condition to test.
  
!           With this technique, '(cc0)' may be validly used in only two
            contexts: as the destination of an assignment (in test and
            compare instructions) where the source is a comparison
!           operator, and as the first operand of 'if_then_else' (in a
            conditional branch).
  
!      There is only one expression object of code 'cc0'; it is the value
!      of the variable 'cc0_rtx'.  Any attempt to create an expression of
!      code 'cc0' will return 'cc0_rtx'.
  
       Instructions can set the condition code implicitly.  On many
       machines, nearly all instructions set the condition code based on
       the value that they compute or store.  It is not necessary to
       record these actions explicitly in the RTL because the machine
       description includes a prescription for recognizing the
!      instructions that do so (by means of the macro 'NOTICE_UPDATE_CC').
!      *Note Condition Code::.  Only instructions whose sole purpose is to
!      set the condition code, and instructions that use the condition
!      code, need mention '(cc0)'.
  
       On some machines, the condition code register is given a register
!      number and a 'reg' is used instead of '(cc0)'.  This is usually the
       preferable approach if only a small subset of instructions modify
       the condition code.  Other machines store condition codes in
       general registers; in such cases a pseudo register should be used.
*************** registers and to main memory.
*** 15672,15713 ****
       the condition code.  This is best handled by normally generating
       the instruction that does not set the condition code, and making a
       pattern that both performs the arithmetic and sets the condition
!      code register (which would not be `(cc0)' in this case).  For
!      examples, search for `addcc' and `andcc' in `sparc.md'.
  
! `(pc)'
       This represents the machine's program counter.  It has no operands
!      and may not have a machine mode.  `(pc)' may be validly used only
       in certain specific contexts in jump instructions.
  
!      There is only one expression object of code `pc'; it is the value
!      of the variable `pc_rtx'.  Any attempt to create an expression of
!      code `pc' will return `pc_rtx'.
  
       All instructions that do not jump alter the program counter
!      implicitly by incrementing it, but there is no need to mention
!      this in the RTL.
  
! `(mem:M ADDR ALIAS)'
       This RTX represents a reference to main memory at an address
       represented by the expression ADDR.  M specifies how large a unit
       of memory is accessed.  ALIAS specifies an alias set for the
       reference.  In general two items are in different alias sets if
       they cannot reference the same memory address.
  
!      The construct `(mem:BLK (scratch))' is considered to alias all
       other memories.  Thus it may be used as a memory barrier in
       epilogue stack deallocation patterns.
  
! `(concatM RTX RTX)'
       This RTX represents the concatenation of two other RTXs.  This is
!      used for complex values.  It should only appear in the RTL
!      attached to declarations and during RTL generation.  It should not
!      appear in the ordinary insn chain.
  
! `(concatnM [RTX ...])'
       This RTX represents the concatenation of all the RTX to make a
!      single value.  Like `concat', this should only appear in
       declarations, and not in the insn chain.
  
  
--- 15513,15554 ----
       the condition code.  This is best handled by normally generating
       the instruction that does not set the condition code, and making a
       pattern that both performs the arithmetic and sets the condition
!      code register (which would not be '(cc0)' in this case).  For
!      examples, search for 'addcc' and 'andcc' in 'sparc.md'.
  
! '(pc)'
       This represents the machine's program counter.  It has no operands
!      and may not have a machine mode.  '(pc)' may be validly used only
       in certain specific contexts in jump instructions.
  
!      There is only one expression object of code 'pc'; it is the value
!      of the variable 'pc_rtx'.  Any attempt to create an expression of
!      code 'pc' will return 'pc_rtx'.
  
       All instructions that do not jump alter the program counter
!      implicitly by incrementing it, but there is no need to mention this
!      in the RTL.
  
! '(mem:M ADDR ALIAS)'
       This RTX represents a reference to main memory at an address
       represented by the expression ADDR.  M specifies how large a unit
       of memory is accessed.  ALIAS specifies an alias set for the
       reference.  In general two items are in different alias sets if
       they cannot reference the same memory address.
  
!      The construct '(mem:BLK (scratch))' is considered to alias all
       other memories.  Thus it may be used as a memory barrier in
       epilogue stack deallocation patterns.
  
! '(concatM RTX RTX)'
       This RTX represents the concatenation of two other RTXs.  This is
!      used for complex values.  It should only appear in the RTL attached
!      to declarations and during RTL generation.  It should not appear in
!      the ordinary insn chain.
  
! '(concatnM [RTX ...])'
       This RTX represents the concatenation of all the RTX to make a
!      single value.  Like 'concat', this should only appear in
       declarations, and not in the insn chain.
  
  
*************** File: gccint.info,  Node: Arithmetic,  N
*** 15717,15814 ****
  ===================================
  
  Unless otherwise specified, all the operands of arithmetic expressions
! must be valid for mode M.  An operand is valid for mode M if it has
! mode M, or if it is a `const_int' or `const_double' and M is a mode of
! class `MODE_INT'.
  
   For commutative binary operations, constants should be placed in the
  second operand.
  
! `(plus:M X Y)'
! `(ss_plus:M X Y)'
! `(us_plus:M X Y)'
       These three expressions all represent the sum of the values
       represented by X and Y carried out in machine mode M.  They differ
!      in their behavior on overflow of integer modes.  `plus' wraps
!      round modulo the width of M; `ss_plus' saturates at the maximum
!      signed value representable in M; `us_plus' saturates at the
!      maximum unsigned value.
  
- `(lo_sum:M X Y)'
       This expression represents the sum of X and the low-order bits of
!      Y.  It is used with `high' (*note Constants::) to represent the
!      typical two-instruction sequence used in RISC machines to
!      reference a global memory location.
  
       The number of low order bits is machine-dependent but is normally
!      the number of bits in a `Pmode' item minus the number of bits set
!      by `high'.
  
!      M should be `Pmode'.
  
- `(minus:M X Y)'
- `(ss_minus:M X Y)'
- `(us_minus:M X Y)'
       These three expressions represent the result of subtracting Y from
       X, carried out in mode M.  Behavior on overflow is the same as for
!      the three variants of `plus' (see above).
  
! `(compare:M X Y)'
       Represents the result of subtracting Y from X for purposes of
       comparison.  The result is computed without overflow, as if with
       infinite precision.
  
       Of course, machines can't really subtract with infinite precision.
!      However, they can pretend to do so when only the sign of the
!      result will be used, which is the case when the result is stored
!      in the condition code.  And that is the _only_ way this kind of
!      expression may validly be used: as a value to be stored in the
!      condition codes, either `(cc0)' or a register.  *Note
!      Comparisons::.
  
       The mode M is not related to the modes of X and Y, but instead is
!      the mode of the condition code value.  If `(cc0)' is used, it is
!      `VOIDmode'.  Otherwise it is some mode in class `MODE_CC', often
!      `CCmode'.  *Note Condition Code::.  If M is `VOIDmode' or
!      `CCmode', the operation returns sufficient information (in an
!      unspecified format) so that any comparison operator can be applied
!      to the result of the `COMPARE' operation.  For other modes in
!      class `MODE_CC', the operation only returns a subset of this
!      information.
  
!      Normally, X and Y must have the same mode.  Otherwise, `compare'
!      is valid only if the mode of X is in class `MODE_INT' and Y is a
!      `const_int' or `const_double' with mode `VOIDmode'.  The mode of X
       determines what mode the comparison is to be done in; thus it must
!      not be `VOIDmode'.
  
       If one of the operands is a constant, it should be placed in the
       second operand and the comparison code adjusted as appropriate.
  
!      A `compare' specifying two `VOIDmode' constants is not valid since
       there is no way to know in what mode the comparison is to be
       performed; the comparison must either be folded during the
       compilation or the first operand must be loaded into a register
       while its mode is still known.
  
! `(neg:M X)'
! `(ss_neg:M X)'
! `(us_neg:M X)'
       These two expressions represent the negation (subtraction from
       zero) of the value represented by X, carried out in mode M.  They
       differ in the behavior on overflow of integer modes.  In the case
!      of `neg', the negation of the operand may be a number not
       representable in mode M, in which case it is truncated to M.
!      `ss_neg' and `us_neg' ensure that an out-of-bounds result
!      saturates to the maximum or minimum signed or unsigned value.
  
! `(mult:M X Y)'
! `(ss_mult:M X Y)'
! `(us_mult:M X Y)'
       Represents the signed product of the values represented by X and Y
!      carried out in machine mode M.  `ss_mult' and `us_mult' ensure
!      that an out-of-bounds result saturates to the maximum or minimum
!      signed or unsigned value.
  
       Some machines support a multiplication that generates a product
       wider than the operands.  Write the pattern for this as
--- 15558,15656 ----
  ===================================
  
  Unless otherwise specified, all the operands of arithmetic expressions
! must be valid for mode M.  An operand is valid for mode M if it has mode
! M, or if it is a 'const_int' or 'const_double' and M is a mode of class
! 'MODE_INT'.
  
   For commutative binary operations, constants should be placed in the
  second operand.
  
! '(plus:M X Y)'
! '(ss_plus:M X Y)'
! '(us_plus:M X Y)'
! 
       These three expressions all represent the sum of the values
       represented by X and Y carried out in machine mode M.  They differ
!      in their behavior on overflow of integer modes.  'plus' wraps round
!      modulo the width of M; 'ss_plus' saturates at the maximum signed
!      value representable in M; 'us_plus' saturates at the maximum
!      unsigned value.
! 
! '(lo_sum:M X Y)'
  
       This expression represents the sum of X and the low-order bits of
!      Y.  It is used with 'high' (*note Constants::) to represent the
!      typical two-instruction sequence used in RISC machines to reference
!      a global memory location.
  
       The number of low order bits is machine-dependent but is normally
!      the number of bits in a 'Pmode' item minus the number of bits set
!      by 'high'.
  
!      M should be 'Pmode'.
! 
! '(minus:M X Y)'
! '(ss_minus:M X Y)'
! '(us_minus:M X Y)'
  
       These three expressions represent the result of subtracting Y from
       X, carried out in mode M.  Behavior on overflow is the same as for
!      the three variants of 'plus' (see above).
  
! '(compare:M X Y)'
       Represents the result of subtracting Y from X for purposes of
       comparison.  The result is computed without overflow, as if with
       infinite precision.
  
       Of course, machines can't really subtract with infinite precision.
!      However, they can pretend to do so when only the sign of the result
!      will be used, which is the case when the result is stored in the
!      condition code.  And that is the _only_ way this kind of expression
!      may validly be used: as a value to be stored in the condition
!      codes, either '(cc0)' or a register.  *Note Comparisons::.
  
       The mode M is not related to the modes of X and Y, but instead is
!      the mode of the condition code value.  If '(cc0)' is used, it is
!      'VOIDmode'.  Otherwise it is some mode in class 'MODE_CC', often
!      'CCmode'.  *Note Condition Code::.  If M is 'VOIDmode' or 'CCmode',
!      the operation returns sufficient information (in an unspecified
!      format) so that any comparison operator can be applied to the
!      result of the 'COMPARE' operation.  For other modes in class
!      'MODE_CC', the operation only returns a subset of this information.
  
!      Normally, X and Y must have the same mode.  Otherwise, 'compare' is
!      valid only if the mode of X is in class 'MODE_INT' and Y is a
!      'const_int' or 'const_double' with mode 'VOIDmode'.  The mode of X
       determines what mode the comparison is to be done in; thus it must
!      not be 'VOIDmode'.
  
       If one of the operands is a constant, it should be placed in the
       second operand and the comparison code adjusted as appropriate.
  
!      A 'compare' specifying two 'VOIDmode' constants is not valid since
       there is no way to know in what mode the comparison is to be
       performed; the comparison must either be folded during the
       compilation or the first operand must be loaded into a register
       while its mode is still known.
  
! '(neg:M X)'
! '(ss_neg:M X)'
! '(us_neg:M X)'
       These two expressions represent the negation (subtraction from
       zero) of the value represented by X, carried out in mode M.  They
       differ in the behavior on overflow of integer modes.  In the case
!      of 'neg', the negation of the operand may be a number not
       representable in mode M, in which case it is truncated to M.
!      'ss_neg' and 'us_neg' ensure that an out-of-bounds result saturates
!      to the maximum or minimum signed or unsigned value.
  
! '(mult:M X Y)'
! '(ss_mult:M X Y)'
! '(us_mult:M X Y)'
       Represents the signed product of the values represented by X and Y
!      carried out in machine mode M.  'ss_mult' and 'us_mult' ensure that
!      an out-of-bounds result saturates to the maximum or minimum signed
!      or unsigned value.
  
       Some machines support a multiplication that generates a product
       wider than the operands.  Write the pattern for this as
*************** second operand.
*** 15819,15965 ****
       same.
  
       For unsigned widening multiplication, use the same idiom, but with
!      `zero_extend' instead of `sign_extend'.
  
! `(fma:M X Y Z)'
!      Represents the `fma', `fmaf', and `fmal' builtin functions, which
!      compute `X * Y + Z' without doing an intermediate rounding step.
  
! `(div:M X Y)'
! `(ss_div:M X Y)'
       Represents the quotient in signed division of X by Y, carried out
       in machine mode M.  If M is a floating point mode, it represents
!      the exact quotient; otherwise, the integerized quotient.  `ss_div'
       ensures that an out-of-bounds result saturates to the maximum or
       minimum signed value.
  
       Some machines have division instructions in which the operands and
       quotient widths are not all the same; you should represent such
!      instructions using `truncate' and `sign_extend' as in,
  
            (truncate:M1 (div:M2 X (sign_extend:M2 Y)))
  
! `(udiv:M X Y)'
! `(us_div:M X Y)'
!      Like `div' but represents unsigned division.  `us_div' ensures
!      that an out-of-bounds result saturates to the maximum or minimum
       unsigned value.
  
! `(mod:M X Y)'
! `(umod:M X Y)'
!      Like `div' and `udiv' but represent the remainder instead of the
       quotient.
  
! `(smin:M X Y)'
! `(smax:M X Y)'
!      Represents the smaller (for `smin') or larger (for `smax') of X
!      and Y, interpreted as signed values in mode M.  When used with
!      floating point, if both operands are zeros, or if either operand
!      is `NaN', then it is unspecified which of the two operands is
!      returned as the result.
  
! `(umin:M X Y)'
! `(umax:M X Y)'
!      Like `smin' and `smax', but the values are interpreted as unsigned
       integers.
  
! `(not:M X)'
       Represents the bitwise complement of the value represented by X,
       carried out in mode M, which must be a fixed-point machine mode.
  
! `(and:M X Y)'
       Represents the bitwise logical-and of the values represented by X
       and Y, carried out in machine mode M, which must be a fixed-point
       machine mode.
  
! `(ior:M X Y)'
       Represents the bitwise inclusive-or of the values represented by X
       and Y, carried out in machine mode M, which must be a fixed-point
       mode.
  
! `(xor:M X Y)'
       Represents the bitwise exclusive-or of the values represented by X
       and Y, carried out in machine mode M, which must be a fixed-point
       mode.
  
! `(ashift:M X C)'
! `(ss_ashift:M X C)'
! `(us_ashift:M X C)'
       These three expressions represent the result of arithmetically
       shifting X left by C places.  They differ in their behavior on
!      overflow of integer modes.  An `ashift' operation is a plain shift
       with no special behavior in case of a change in the sign bit;
!      `ss_ashift' and `us_ashift' saturates to the minimum or maximum
!      representable value if any of the bits shifted out differs from
!      the final sign bit.
  
!      X have mode M, a fixed-point machine mode.  C be a fixed-point
!      mode or be a constant with mode `VOIDmode'; which mode is
!      determined by the mode called for in the machine description entry
!      for the left-shift instruction.  For example, on the VAX, the mode
!      of C is `QImode' regardless of M.
  
! `(lshiftrt:M X C)'
! `(ashiftrt:M X C)'
!      Like `ashift' but for right shift.  Unlike the case for left shift,
       these two operations are distinct.
  
! `(rotate:M X C)'
! `(rotatert:M X C)'
       Similar but represent left and right rotate.  If C is a constant,
!      use `rotate'.
! 
! `(abs:M X)'
  
! `(ss_abs:M X)'
!      Represents the absolute value of X, computed in mode M.  `ss_abs'
       ensures that an out-of-bounds result saturates to the maximum
       signed value.
  
! `(sqrt:M X)'
       Represents the square root of X, computed in mode M.  Most often M
       will be a floating point mode.
  
! `(ffs:M X)'
       Represents one plus the index of the least significant 1-bit in X,
       represented as an integer of mode M.  (The value is zero if X is
!      zero.)  The mode of X must be M or `VOIDmode'.
  
! `(clrsb:M X)'
       Represents the number of redundant leading sign bits in X,
       represented as an integer of mode M, starting at the most
       significant bit position.  This is one less than the number of
!      leading sign bits (either 0 or 1), with no special cases.  The
!      mode of X must be M or `VOIDmode'.
  
! `(clz:M X)'
       Represents the number of leading 0-bits in X, represented as an
       integer of mode M, starting at the most significant bit position.
       If X is zero, the value is determined by
!      `CLZ_DEFINED_VALUE_AT_ZERO' (*note Misc::).  Note that this is one
       of the few expressions that is not invariant under widening.  The
!      mode of X must be M or `VOIDmode'.
  
! `(ctz:M X)'
       Represents the number of trailing 0-bits in X, represented as an
       integer of mode M, starting at the least significant bit position.
       If X is zero, the value is determined by
!      `CTZ_DEFINED_VALUE_AT_ZERO' (*note Misc::).  Except for this case,
!      `ctz(x)' is equivalent to `ffs(X) - 1'.  The mode of X must be M
!      or `VOIDmode'.
  
! `(popcount:M X)'
       Represents the number of 1-bits in X, represented as an integer of
!      mode M.  The mode of X must be M or `VOIDmode'.
  
! `(parity:M X)'
       Represents the number of 1-bits modulo 2 in X, represented as an
!      integer of mode M.  The mode of X must be M or `VOIDmode'.
  
! `(bswap:M X)'
       Represents the value X with the order of bytes reversed, carried
       out in mode M, which must be a fixed-point machine mode.  The mode
!      of X must be M or `VOIDmode'.
  
  
  File: gccint.info,  Node: Comparisons,  Next: Bit-Fields,  Prev: Arithmetic,  Up: RTL
--- 15661,15806 ----
       same.
  
       For unsigned widening multiplication, use the same idiom, but with
!      'zero_extend' instead of 'sign_extend'.
  
! '(fma:M X Y Z)'
!      Represents the 'fma', 'fmaf', and 'fmal' builtin functions, which
!      compute 'X * Y + Z' without doing an intermediate rounding step.
  
! '(div:M X Y)'
! '(ss_div:M X Y)'
       Represents the quotient in signed division of X by Y, carried out
       in machine mode M.  If M is a floating point mode, it represents
!      the exact quotient; otherwise, the integerized quotient.  'ss_div'
       ensures that an out-of-bounds result saturates to the maximum or
       minimum signed value.
  
       Some machines have division instructions in which the operands and
       quotient widths are not all the same; you should represent such
!      instructions using 'truncate' and 'sign_extend' as in,
  
            (truncate:M1 (div:M2 X (sign_extend:M2 Y)))
  
! '(udiv:M X Y)'
! '(us_div:M X Y)'
!      Like 'div' but represents unsigned division.  'us_div' ensures that
!      an out-of-bounds result saturates to the maximum or minimum
       unsigned value.
  
! '(mod:M X Y)'
! '(umod:M X Y)'
!      Like 'div' and 'udiv' but represent the remainder instead of the
       quotient.
  
! '(smin:M X Y)'
! '(smax:M X Y)'
!      Represents the smaller (for 'smin') or larger (for 'smax') of X and
!      Y, interpreted as signed values in mode M.  When used with floating
!      point, if both operands are zeros, or if either operand is 'NaN',
!      then it is unspecified which of the two operands is returned as the
!      result.
  
! '(umin:M X Y)'
! '(umax:M X Y)'
!      Like 'smin' and 'smax', but the values are interpreted as unsigned
       integers.
  
! '(not:M X)'
       Represents the bitwise complement of the value represented by X,
       carried out in mode M, which must be a fixed-point machine mode.
  
! '(and:M X Y)'
       Represents the bitwise logical-and of the values represented by X
       and Y, carried out in machine mode M, which must be a fixed-point
       machine mode.
  
! '(ior:M X Y)'
       Represents the bitwise inclusive-or of the values represented by X
       and Y, carried out in machine mode M, which must be a fixed-point
       mode.
  
! '(xor:M X Y)'
       Represents the bitwise exclusive-or of the values represented by X
       and Y, carried out in machine mode M, which must be a fixed-point
       mode.
  
! '(ashift:M X C)'
! '(ss_ashift:M X C)'
! '(us_ashift:M X C)'
       These three expressions represent the result of arithmetically
       shifting X left by C places.  They differ in their behavior on
!      overflow of integer modes.  An 'ashift' operation is a plain shift
       with no special behavior in case of a change in the sign bit;
!      'ss_ashift' and 'us_ashift' saturates to the minimum or maximum
!      representable value if any of the bits shifted out differs from the
!      final sign bit.
  
!      X have mode M, a fixed-point machine mode.  C be a fixed-point mode
!      or be a constant with mode 'VOIDmode'; which mode is determined by
!      the mode called for in the machine description entry for the
!      left-shift instruction.  For example, on the VAX, the mode of C is
!      'QImode' regardless of M.
  
! '(lshiftrt:M X C)'
! '(ashiftrt:M X C)'
!      Like 'ashift' but for right shift.  Unlike the case for left shift,
       these two operations are distinct.
  
! '(rotate:M X C)'
! '(rotatert:M X C)'
       Similar but represent left and right rotate.  If C is a constant,
!      use 'rotate'.
  
! '(abs:M X)'
! '(ss_abs:M X)'
!      Represents the absolute value of X, computed in mode M.  'ss_abs'
       ensures that an out-of-bounds result saturates to the maximum
       signed value.
  
! '(sqrt:M X)'
       Represents the square root of X, computed in mode M.  Most often M
       will be a floating point mode.
  
! '(ffs:M X)'
       Represents one plus the index of the least significant 1-bit in X,
       represented as an integer of mode M.  (The value is zero if X is
!      zero.)  The mode of X must be M or 'VOIDmode'.
  
! '(clrsb:M X)'
       Represents the number of redundant leading sign bits in X,
       represented as an integer of mode M, starting at the most
       significant bit position.  This is one less than the number of
!      leading sign bits (either 0 or 1), with no special cases.  The mode
!      of X must be M or 'VOIDmode'.
  
! '(clz:M X)'
       Represents the number of leading 0-bits in X, represented as an
       integer of mode M, starting at the most significant bit position.
       If X is zero, the value is determined by
!      'CLZ_DEFINED_VALUE_AT_ZERO' (*note Misc::).  Note that this is one
       of the few expressions that is not invariant under widening.  The
!      mode of X must be M or 'VOIDmode'.
  
! '(ctz:M X)'
       Represents the number of trailing 0-bits in X, represented as an
       integer of mode M, starting at the least significant bit position.
       If X is zero, the value is determined by
!      'CTZ_DEFINED_VALUE_AT_ZERO' (*note Misc::).  Except for this case,
!      'ctz(x)' is equivalent to 'ffs(X) - 1'.  The mode of X must be M or
!      'VOIDmode'.
  
! '(popcount:M X)'
       Represents the number of 1-bits in X, represented as an integer of
!      mode M.  The mode of X must be M or 'VOIDmode'.
  
! '(parity:M X)'
       Represents the number of 1-bits modulo 2 in X, represented as an
!      integer of mode M.  The mode of X must be M or 'VOIDmode'.
  
! '(bswap:M X)'
       Represents the value X with the order of bytes reversed, carried
       out in mode M, which must be a fixed-point machine mode.  The mode
!      of X must be M or 'VOIDmode'.
  
  
  File: gccint.info,  Node: Comparisons,  Next: Bit-Fields,  Prev: Arithmetic,  Up: RTL
*************** File: gccint.info,  Node: Comparisons,
*** 15969,15993 ****
  
  Comparison operators test a relation on two operands and are considered
  to represent a machine-dependent nonzero value described by, but not
! necessarily equal to, `STORE_FLAG_VALUE' (*note Misc::) if the relation
  holds, or zero if it does not, for comparison operators whose results
! have a `MODE_INT' mode, `FLOAT_STORE_FLAG_VALUE' (*note Misc::) if the
  relation holds, or zero if it does not, for comparison operators that
  return floating-point values, and a vector of either
! `VECTOR_STORE_FLAG_VALUE' (*note Misc::) if the relation holds, or of
  zeros if it does not, for comparison operators that return vector
  results.  The mode of the comparison operation is independent of the
  mode of the data being compared.  If the comparison operation is being
! tested (e.g., the first operand of an `if_then_else'), the mode must be
! `VOIDmode'.
  
   There are two ways that comparison operations may be used.  The
! comparison operators may be used to compare the condition codes `(cc0)'
! against zero, as in `(eq (cc0) (const_int 0))'.  Such a construct
  actually refers to the result of the preceding instruction in which the
  condition codes were set.  The instruction setting the condition code
  must be adjacent to the instruction using the condition code; only
! `note' insns may separate them.
  
   Alternatively, a comparison operation may directly compare two data
  objects.  The mode of the comparison is determined by the operands; they
--- 15810,15834 ----
  
  Comparison operators test a relation on two operands and are considered
  to represent a machine-dependent nonzero value described by, but not
! necessarily equal to, 'STORE_FLAG_VALUE' (*note Misc::) if the relation
  holds, or zero if it does not, for comparison operators whose results
! have a 'MODE_INT' mode, 'FLOAT_STORE_FLAG_VALUE' (*note Misc::) if the
  relation holds, or zero if it does not, for comparison operators that
  return floating-point values, and a vector of either
! 'VECTOR_STORE_FLAG_VALUE' (*note Misc::) if the relation holds, or of
  zeros if it does not, for comparison operators that return vector
  results.  The mode of the comparison operation is independent of the
  mode of the data being compared.  If the comparison operation is being
! tested (e.g., the first operand of an 'if_then_else'), the mode must be
! 'VOIDmode'.
  
   There are two ways that comparison operations may be used.  The
! comparison operators may be used to compare the condition codes '(cc0)'
! against zero, as in '(eq (cc0) (const_int 0))'.  Such a construct
  actually refers to the result of the preceding instruction in which the
  condition codes were set.  The instruction setting the condition code
  must be adjacent to the instruction using the condition code; only
! 'note' insns may separate them.
  
   Alternatively, a comparison operation may directly compare two data
  objects.  The mode of the comparison is determined by the operands; they
*************** operands constant would be invalid as th
*** 15996,16061 ****
  deduced from it, but such a comparison should never exist in RTL due to
  constant folding.
  
!  In the example above, if `(cc0)' were last set to `(compare X Y)', the
! comparison operation is identical to `(eq X Y)'.  Usually only one style
  of comparisons is supported on a particular machine, but the combine
! pass will try to merge the operations to produce the `eq' shown in case
  it exists in the context of the particular insn involved.
  
   Inequality comparisons come in two flavors, signed and unsigned.  Thus,
! there are distinct expression codes `gt' and `gtu' for signed and
  unsigned greater-than.  These can produce different results for the same
  pair of integer values: for example, 1 is signed greater-than -1 but not
  unsigned greater-than, because -1 when regarded as unsigned is actually
! `0xffffffff' which is greater than 1.
  
   The signed comparisons are also used for floating point values.
! Floating point comparisons are distinguished by the machine modes of
! the operands.
  
! `(eq:M X Y)'
!      `STORE_FLAG_VALUE' if the values represented by X and Y are equal,
       otherwise 0.
  
! `(ne:M X Y)'
!      `STORE_FLAG_VALUE' if the values represented by X and Y are not
       equal, otherwise 0.
  
! `(gt:M X Y)'
!      `STORE_FLAG_VALUE' if the X is greater than Y.  If they are
       fixed-point, the comparison is done in a signed sense.
  
! `(gtu:M X Y)'
!      Like `gt' but does unsigned comparison, on fixed-point numbers
       only.
  
! `(lt:M X Y)'
! `(ltu:M X Y)'
!      Like `gt' and `gtu' but test for "less than".
  
! `(ge:M X Y)'
! `(geu:M X Y)'
!      Like `gt' and `gtu' but test for "greater than or equal".
  
! `(le:M X Y)'
! `(leu:M X Y)'
!      Like `gt' and `gtu' but test for "less than or equal".
  
! `(if_then_else COND THEN ELSE)'
       This is not a comparison operation but is listed here because it is
       always used in conjunction with a comparison operation.  To be
       precise, COND is a comparison expression.  This expression
       represents a choice, according to COND, between the value
       represented by THEN and the one represented by ELSE.
  
!      On most machines, `if_then_else' expressions are valid only to
       express conditional jumps.
  
! `(cond [TEST1 VALUE1 TEST2 VALUE2 ...] DEFAULT)'
!      Similar to `if_then_else', but more general.  Each of TEST1,
!      TEST2, ... is performed in turn.  The result of this expression is
!      the VALUE corresponding to the first nonzero test, or DEFAULT if
!      none of the tests are nonzero expressions.
  
       This is currently not valid for instruction patterns and is
       supported only for insn attributes.  *Note Insn Attributes::.
--- 15837,15902 ----
  deduced from it, but such a comparison should never exist in RTL due to
  constant folding.
  
!  In the example above, if '(cc0)' were last set to '(compare X Y)', the
! comparison operation is identical to '(eq X Y)'.  Usually only one style
  of comparisons is supported on a particular machine, but the combine
! pass will try to merge the operations to produce the 'eq' shown in case
  it exists in the context of the particular insn involved.
  
   Inequality comparisons come in two flavors, signed and unsigned.  Thus,
! there are distinct expression codes 'gt' and 'gtu' for signed and
  unsigned greater-than.  These can produce different results for the same
  pair of integer values: for example, 1 is signed greater-than -1 but not
  unsigned greater-than, because -1 when regarded as unsigned is actually
! '0xffffffff' which is greater than 1.
  
   The signed comparisons are also used for floating point values.
! Floating point comparisons are distinguished by the machine modes of the
! operands.
  
! '(eq:M X Y)'
!      'STORE_FLAG_VALUE' if the values represented by X and Y are equal,
       otherwise 0.
  
! '(ne:M X Y)'
!      'STORE_FLAG_VALUE' if the values represented by X and Y are not
       equal, otherwise 0.
  
! '(gt:M X Y)'
!      'STORE_FLAG_VALUE' if the X is greater than Y.  If they are
       fixed-point, the comparison is done in a signed sense.
  
! '(gtu:M X Y)'
!      Like 'gt' but does unsigned comparison, on fixed-point numbers
       only.
  
! '(lt:M X Y)'
! '(ltu:M X Y)'
!      Like 'gt' and 'gtu' but test for "less than".
  
! '(ge:M X Y)'
! '(geu:M X Y)'
!      Like 'gt' and 'gtu' but test for "greater than or equal".
  
! '(le:M X Y)'
! '(leu:M X Y)'
!      Like 'gt' and 'gtu' but test for "less than or equal".
  
! '(if_then_else COND THEN ELSE)'
       This is not a comparison operation but is listed here because it is
       always used in conjunction with a comparison operation.  To be
       precise, COND is a comparison expression.  This expression
       represents a choice, according to COND, between the value
       represented by THEN and the one represented by ELSE.
  
!      On most machines, 'if_then_else' expressions are valid only to
       express conditional jumps.
  
! '(cond [TEST1 VALUE1 TEST2 VALUE2 ...] DEFAULT)'
!      Similar to 'if_then_else', but more general.  Each of TEST1, TEST2,
!      ... is performed in turn.  The result of this expression is the
!      VALUE corresponding to the first nonzero test, or DEFAULT if none
!      of the tests are nonzero expressions.
  
       This is currently not valid for instruction patterns and is
       supported only for insn attributes.  *Note Insn Attributes::.
*************** File: gccint.info,  Node: Bit-Fields,  N
*** 16068,16101 ****
  
  Special expression codes exist to represent bit-field instructions.
  
! `(sign_extract:M LOC SIZE POS)'
       This represents a reference to a sign-extended bit-field contained
       or starting in LOC (a memory or register reference).  The bit-field
       is SIZE bits wide and starts at bit POS.  The compilation option
!      `BITS_BIG_ENDIAN' says which end of the memory unit POS counts
       from.
  
       If LOC is in memory, its mode must be a single-byte integer mode.
       If LOC is in a register, the mode to use is specified by the
!      operand of the `insv' or `extv' pattern (*note Standard Names::)
       and is usually a full-word integer mode, which is the default if
       none is specified.
  
       The mode of POS is machine-specific and is also specified in the
!      `insv' or `extv' pattern.
  
!      The mode M is the same as the mode that would be used for LOC if
!      it were a register.
  
!      A `sign_extract' can not appear as an lvalue, or part thereof, in
       RTL.
  
! `(zero_extract:M LOC SIZE POS)'
!      Like `sign_extract' but refers to an unsigned or zero-extended
       bit-field.  The same sequence of bits are extracted, but they are
       filled to an entire word with zeros instead of by sign-extension.
  
!      Unlike `sign_extract', this type of expressions can be lvalues in
       RTL; they may appear on the left side of an assignment, indicating
       insertion of a value into the specified bit-field.
  
--- 15909,15942 ----
  
  Special expression codes exist to represent bit-field instructions.
  
! '(sign_extract:M LOC SIZE POS)'
       This represents a reference to a sign-extended bit-field contained
       or starting in LOC (a memory or register reference).  The bit-field
       is SIZE bits wide and starts at bit POS.  The compilation option
!      'BITS_BIG_ENDIAN' says which end of the memory unit POS counts
       from.
  
       If LOC is in memory, its mode must be a single-byte integer mode.
       If LOC is in a register, the mode to use is specified by the
!      operand of the 'insv' or 'extv' pattern (*note Standard Names::)
       and is usually a full-word integer mode, which is the default if
       none is specified.
  
       The mode of POS is machine-specific and is also specified in the
!      'insv' or 'extv' pattern.
  
!      The mode M is the same as the mode that would be used for LOC if it
!      were a register.
  
!      A 'sign_extract' can not appear as an lvalue, or part thereof, in
       RTL.
  
! '(zero_extract:M LOC SIZE POS)'
!      Like 'sign_extract' but refers to an unsigned or zero-extended
       bit-field.  The same sequence of bits are extracted, but they are
       filled to an entire word with zeros instead of by sign-extension.
  
!      Unlike 'sign_extract', this type of expressions can be lvalues in
       RTL; they may appear on the left side of an assignment, indicating
       insertion of a value into the specified bit-field.
  
*************** interpreted as operating on each part of
*** 16110,16144 ****
  Additionally, there are a few new expressions to describe specific
  vector operations.
  
! `(vec_merge:M VEC1 VEC2 ITEMS)'
       This describes a merge operation between two vectors.  The result
       is a vector of mode M; its elements are selected from either VEC1
       or VEC2.  Which elements are selected is described by ITEMS, which
!      is a bit mask represented by a `const_int'; a zero bit indicates
       the corresponding element in the result vector is taken from VEC2
       while a set bit indicates it is taken from VEC1.
  
! `(vec_select:M VEC1 SELECTION)'
       This describes an operation that selects parts of a vector.  VEC1
!      is the source vector, and SELECTION is a `parallel' that contains a
!      `const_int' for each of the subparts of the result vector, giving
       the number of the source subpart that should be stored into it.
       The result mode M is either the submode for a single element of
!      VEC1 (if only one subpart is selected), or another vector mode
!      with that element submode (if multiple subparts are selected).
  
! `(vec_concat:M X1 X2)'
!      Describes a vector concat operation.  The result is a
!      concatenation of the vectors or scalars X1 and X2; its length is
!      the sum of the lengths of the two inputs.
  
! `(vec_duplicate:M X)'
       This operation converts a scalar into a vector or a small vector
       into a larger one by duplicating the input values.  The output
!      vector mode must have the same submodes as the input vector mode
!      or the scalar modes, and the number of output parts must be an
!      integer multiple of the number of input parts.
! 
  
  
  File: gccint.info,  Node: Conversions,  Next: RTL Declarations,  Prev: Vector Operations,  Up: RTL
--- 15951,15984 ----
  Additionally, there are a few new expressions to describe specific
  vector operations.
  
! '(vec_merge:M VEC1 VEC2 ITEMS)'
       This describes a merge operation between two vectors.  The result
       is a vector of mode M; its elements are selected from either VEC1
       or VEC2.  Which elements are selected is described by ITEMS, which
!      is a bit mask represented by a 'const_int'; a zero bit indicates
       the corresponding element in the result vector is taken from VEC2
       while a set bit indicates it is taken from VEC1.
  
! '(vec_select:M VEC1 SELECTION)'
       This describes an operation that selects parts of a vector.  VEC1
!      is the source vector, and SELECTION is a 'parallel' that contains a
!      'const_int' for each of the subparts of the result vector, giving
       the number of the source subpart that should be stored into it.
       The result mode M is either the submode for a single element of
!      VEC1 (if only one subpart is selected), or another vector mode with
!      that element submode (if multiple subparts are selected).
  
! '(vec_concat:M X1 X2)'
!      Describes a vector concat operation.  The result is a concatenation
!      of the vectors or scalars X1 and X2; its length is the sum of the
!      lengths of the two inputs.
  
! '(vec_duplicate:M X)'
       This operation converts a scalar into a vector or a small vector
       into a larger one by duplicating the input values.  The output
!      vector mode must have the same submodes as the input vector mode or
!      the scalar modes, and the number of output parts must be an integer
!      multiple of the number of input parts.
  
  
  File: gccint.info,  Node: Conversions,  Next: RTL Declarations,  Prev: Vector Operations,  Up: RTL
*************** File: gccint.info,  Node: Conversions,
*** 16147,16156 ****
  =================
  
  All conversions between machine modes must be represented by explicit
! conversion operations.  For example, an expression which is the sum of
! a byte and a full word cannot be written as `(plus:SI (reg:QI 34)
! (reg:SI 80))' because the `plus' operation requires two operands of the
! same machine mode.  Therefore, the byte-sized operand is enclosed in a
  conversion operation, as in
  
       (plus:SI (sign_extend:SI (reg:QI 34)) (reg:SI 80))
--- 15987,15996 ----
  =================
  
  All conversions between machine modes must be represented by explicit
! conversion operations.  For example, an expression which is the sum of a
! byte and a full word cannot be written as '(plus:SI (reg:QI 34) (reg:SI
! 80))' because the 'plus' operation requires two operands of the same
! machine mode.  Therefore, the byte-sized operand is enclosed in a
  conversion operation, as in
  
       (plus:SI (sign_extend:SI (reg:QI 34)) (reg:SI 80))
*************** conversion operation, as in
*** 16159,16228 ****
  be more than one way of converting from a given starting mode to the
  desired final mode.  The conversion operation code says how to do it.
  
!  For all conversion operations, X must not be `VOIDmode' because the
  mode in which to do the conversion would not be known.  The conversion
  must either be done at compile-time or X must be placed into a register.
  
! `(sign_extend:M X)'
!      Represents the result of sign-extending the value X to machine
!      mode M.  M must be a fixed-point mode and X a fixed-point value of
!      a mode narrower than M.
  
! `(zero_extend:M X)'
!      Represents the result of zero-extending the value X to machine
!      mode M.  M must be a fixed-point mode and X a fixed-point value of
!      a mode narrower than M.
  
! `(float_extend:M X)'
       Represents the result of extending the value X to machine mode M.
       M must be a floating point mode and X a floating point value of a
       mode narrower than M.
  
! `(truncate:M X)'
       Represents the result of truncating the value X to machine mode M.
       M must be a fixed-point mode and X a fixed-point value of a mode
       wider than M.
  
! `(ss_truncate:M X)'
       Represents the result of truncating the value X to machine mode M,
       using signed saturation in the case of overflow.  Both M and the
       mode of X must be fixed-point modes.
  
! `(us_truncate:M X)'
       Represents the result of truncating the value X to machine mode M,
       using unsigned saturation in the case of overflow.  Both M and the
       mode of X must be fixed-point modes.
  
! `(float_truncate:M X)'
       Represents the result of truncating the value X to machine mode M.
       M must be a floating point mode and X a floating point value of a
       mode wider than M.
  
! `(float:M X)'
       Represents the result of converting fixed point value X, regarded
       as signed, to floating point mode M.
  
! `(unsigned_float:M X)'
       Represents the result of converting fixed point value X, regarded
       as unsigned, to floating point mode M.
  
! `(fix:M X)'
       When M is a floating-point mode, represents the result of
!      converting floating point value X (valid for mode M) to an
!      integer, still represented in floating point mode M, by rounding
!      towards zero.
  
       When M is a fixed-point mode, represents the result of converting
!      floating point value X to mode M, regarded as signed.  How
!      rounding is done is not specified, so this operation may be used
!      validly in compiling C code only for integer-valued operands.
  
! `(unsigned_fix:M X)'
!      Represents the result of converting floating point value X to
!      fixed point mode M, regarded as unsigned.  How rounding is done is
!      not specified.
  
! `(fract_convert:M X)'
       Represents the result of converting fixed-point value X to
       fixed-point mode M, signed integer value X to fixed-point mode M,
       floating-point value X to fixed-point mode M, fixed-point value X
--- 15999,16068 ----
  be more than one way of converting from a given starting mode to the
  desired final mode.  The conversion operation code says how to do it.
  
!  For all conversion operations, X must not be 'VOIDmode' because the
  mode in which to do the conversion would not be known.  The conversion
  must either be done at compile-time or X must be placed into a register.
  
! '(sign_extend:M X)'
!      Represents the result of sign-extending the value X to machine mode
!      M.  M must be a fixed-point mode and X a fixed-point value of a
!      mode narrower than M.
  
! '(zero_extend:M X)'
!      Represents the result of zero-extending the value X to machine mode
!      M.  M must be a fixed-point mode and X a fixed-point value of a
!      mode narrower than M.
  
! '(float_extend:M X)'
       Represents the result of extending the value X to machine mode M.
       M must be a floating point mode and X a floating point value of a
       mode narrower than M.
  
! '(truncate:M X)'
       Represents the result of truncating the value X to machine mode M.
       M must be a fixed-point mode and X a fixed-point value of a mode
       wider than M.
  
! '(ss_truncate:M X)'
       Represents the result of truncating the value X to machine mode M,
       using signed saturation in the case of overflow.  Both M and the
       mode of X must be fixed-point modes.
  
! '(us_truncate:M X)'
       Represents the result of truncating the value X to machine mode M,
       using unsigned saturation in the case of overflow.  Both M and the
       mode of X must be fixed-point modes.
  
! '(float_truncate:M X)'
       Represents the result of truncating the value X to machine mode M.
       M must be a floating point mode and X a floating point value of a
       mode wider than M.
  
! '(float:M X)'
       Represents the result of converting fixed point value X, regarded
       as signed, to floating point mode M.
  
! '(unsigned_float:M X)'
       Represents the result of converting fixed point value X, regarded
       as unsigned, to floating point mode M.
  
! '(fix:M X)'
       When M is a floating-point mode, represents the result of
!      converting floating point value X (valid for mode M) to an integer,
!      still represented in floating point mode M, by rounding towards
!      zero.
  
       When M is a fixed-point mode, represents the result of converting
!      floating point value X to mode M, regarded as signed.  How rounding
!      is done is not specified, so this operation may be used validly in
!      compiling C code only for integer-valued operands.
  
! '(unsigned_fix:M X)'
!      Represents the result of converting floating point value X to fixed
!      point mode M, regarded as unsigned.  How rounding is done is not
!      specified.
  
! '(fract_convert:M X)'
       Represents the result of converting fixed-point value X to
       fixed-point mode M, signed integer value X to fixed-point mode M,
       floating-point value X to fixed-point mode M, fixed-point value X
*************** must either be done at compile-time or X
*** 16230,16249 ****
       floating-point mode M.  When overflows or underflows happen, the
       results are undefined.
  
! `(sat_fract:M X)'
       Represents the result of converting fixed-point value X to
       fixed-point mode M, signed integer value X to fixed-point mode M,
!      or floating-point value X to fixed-point mode M.  When overflows
!      or underflows happen, the results are saturated to the maximum or
!      the minimum.
  
! `(unsigned_fract_convert:M X)'
       Represents the result of converting fixed-point value X to integer
       mode M regarded as unsigned, or unsigned integer value X to
       fixed-point mode M.  When overflows or underflows happen, the
       results are undefined.
  
! `(unsigned_sat_fract:M X)'
       Represents the result of converting unsigned integer value X to
       fixed-point mode M.  When overflows or underflows happen, the
       results are saturated to the maximum or the minimum.
--- 16070,16089 ----
       floating-point mode M.  When overflows or underflows happen, the
       results are undefined.
  
! '(sat_fract:M X)'
       Represents the result of converting fixed-point value X to
       fixed-point mode M, signed integer value X to fixed-point mode M,
!      or floating-point value X to fixed-point mode M.  When overflows or
!      underflows happen, the results are saturated to the maximum or the
!      minimum.
  
! '(unsigned_fract_convert:M X)'
       Represents the result of converting fixed-point value X to integer
       mode M regarded as unsigned, or unsigned integer value X to
       fixed-point mode M.  When overflows or underflows happen, the
       results are undefined.
  
! '(unsigned_sat_fract:M X)'
       Represents the result of converting unsigned integer value X to
       fixed-point mode M.  When overflows or underflows happen, the
       results are saturated to the maximum or the minimum.
*************** File: gccint.info,  Node: RTL Declaratio
*** 16257,16269 ****
  Declaration expression codes do not represent arithmetic operations but
  rather state assertions about their operands.
  
! `(strict_low_part (subreg:M (reg:N R) 0))'
       This expression code is used in only one context: as the
!      destination operand of a `set' expression.  In addition, the
!      operand of this expression must be a non-paradoxical `subreg'
       expression.
  
!      The presence of `strict_low_part' says that the part of the
       register which is meaningful in mode N, but is not part of mode M,
       is not to be altered.  Normally, an assignment to such a subreg is
       allowed to have undefined effects on the rest of the register when
--- 16097,16109 ----
  Declaration expression codes do not represent arithmetic operations but
  rather state assertions about their operands.
  
! '(strict_low_part (subreg:M (reg:N R) 0))'
       This expression code is used in only one context: as the
!      destination operand of a 'set' expression.  In addition, the
!      operand of this expression must be a non-paradoxical 'subreg'
       expression.
  
!      The presence of 'strict_low_part' says that the part of the
       register which is meaningful in mode N, but is not part of mode M,
       is not to be altered.  Normally, an assignment to such a subreg is
       allowed to have undefined effects on the rest of the register when
*************** codes are used to represent side effects
*** 16284,16408 ****
  the codes described above, which represent values, appear only as the
  operands of these.
  
! `(set LVAL X)'
       Represents the action of storing the value of X into the place
       represented by LVAL.  LVAL must be an expression representing a
!      place that can be stored in: `reg' (or `subreg', `strict_low_part'
!      or `zero_extract'), `mem', `pc', `parallel', or `cc0'.
  
!      If LVAL is a `reg', `subreg' or `mem', it has a machine mode; then
       X must be valid for that mode.
  
!      If LVAL is a `reg' whose machine mode is less than the full width
       of the register, then it means that the part of the register
       specified by the machine mode is given the specified value and the
       rest of the register receives an undefined value.  Likewise, if
!      LVAL is a `subreg' whose machine mode is narrower than the mode of
       the register, the rest of the register can be changed in an
       undefined way.
  
!      If LVAL is a `strict_low_part' of a subreg, then the part of the
!      register specified by the machine mode of the `subreg' is given
!      the value X and the rest of the register is not changed.
  
!      If LVAL is a `zero_extract', then the referenced part of the
       bit-field (a memory or register reference) specified by the
!      `zero_extract' is given the value X and the rest of the bit-field
!      is not changed.  Note that `sign_extract' can not appear in LVAL.
  
!      If LVAL is `(cc0)', it has no machine mode, and X may be either a
!      `compare' expression or a value that may have any mode.  The
!      latter case represents a "test" instruction.  The expression `(set
!      (cc0) (reg:M N))' is equivalent to `(set (cc0) (compare (reg:M N)
       (const_int 0)))'.  Use the former expression to save space during
       the compilation.
  
!      If LVAL is a `parallel', it is used to represent the case of a
       function returning a structure in multiple registers.  Each element
!      of the `parallel' is an `expr_list' whose first operand is a `reg'
!      and whose second operand is a `const_int' representing the offset
       (in bytes) into the structure at which the data in that register
       corresponds.  The first element may be null to indicate that the
       structure is also passed partly in memory.
  
!      If LVAL is `(pc)', we have a jump instruction, and the
!      possibilities for X are very limited.  It may be a `label_ref'
!      expression (unconditional jump).  It may be an `if_then_else'
       (conditional jump), in which case either the second or the third
!      operand must be `(pc)' (for the case which does not jump) and the
!      other of the two must be a `label_ref' (for the case which does
!      jump).  X may also be a `mem' or `(plus:SI (pc) Y)', where Y may
!      be a `reg' or a `mem'; these unusual patterns are used to
!      represent jumps through branch tables.
  
!      If LVAL is neither `(cc0)' nor `(pc)', the mode of LVAL must not
!      be `VOIDmode' and the mode of X must be valid for the mode of LVAL.
  
!      LVAL is customarily accessed with the `SET_DEST' macro and X with
!      the `SET_SRC' macro.
  
! `(return)'
       As the sole expression in a pattern, represents a return from the
       current function, on machines where this can be done with one
       instruction, such as VAXen.  On machines where a multi-instruction
       "epilogue" must be executed in order to return from the function,
       returning is done by jumping to a label which precedes the
!      epilogue, and the `return' expression code is never used.
  
!      Inside an `if_then_else' expression, represents the value to be
!      placed in `pc' to return to the caller.
  
!      Note that an insn pattern of `(return)' is logically equivalent to
!      `(set (pc) (return))', but the latter form is never used.
  
! `(simple_return)'
!      Like `(return)', but truly represents only a function return, while
!      `(return)' may represent an insn that also performs other functions
!      of the function epilogue.  Like `(return)', this may also occur in
       conditional jumps.
  
! `(call FUNCTION NARGS)'
!      Represents a function call.  FUNCTION is a `mem' expression whose
       address is the address of the function to be called.  NARGS is an
       expression which can be used for two purposes: on some machines it
       represents the number of bytes of stack argument; on others, it
       represents the number of argument registers.
  
       Each machine has a standard machine mode which FUNCTION must have.
!      The machine description defines macro `FUNCTION_MODE' to expand
       into the requisite mode name.  The purpose of this mode is to
       specify what kind of addressing is allowed, on machines where the
       allowed kinds of addressing depend on the machine mode being
       addressed.
  
! `(clobber X)'
       Represents the storing or possible storing of an unpredictable,
!      undescribed value into X, which must be a `reg', `scratch',
!      `parallel' or `mem' expression.
  
       One place this is used is in string instructions that store
       standard values into particular hard registers.  It may not be
!      worth the trouble to describe the values that are stored, but it
!      is essential to inform the compiler that the registers will be
       altered, lest it attempt to keep data in them across the string
       instruction.
  
!      If X is `(mem:BLK (const_int 0))' or `(mem:BLK (scratch))', it
       means that all memory locations must be presumed clobbered.  If X
!      is a `parallel', it has the same meaning as a `parallel' in a
!      `set' expression.
  
!      Note that the machine description classifies certain hard
!      registers as "call-clobbered".  All function call instructions are
!      assumed by default to clobber these registers, so there is no need
!      to use `clobber' expressions to indicate this fact.  Also, each
!      function call is assumed to have the potential to alter any memory
!      location, unless the function is declared `const'.
  
!      If the last group of expressions in a `parallel' are each a
!      `clobber' expression whose arguments are `reg' or `match_scratch'
       (*note RTL Template::) expressions, the combiner phase can add the
!      appropriate `clobber' expressions to an insn it has constructed
       when doing so will cause a pattern to be matched.
  
       This feature can be used, for example, on a machine that whose
--- 16124,16248 ----
  the codes described above, which represent values, appear only as the
  operands of these.
  
! '(set LVAL X)'
       Represents the action of storing the value of X into the place
       represented by LVAL.  LVAL must be an expression representing a
!      place that can be stored in: 'reg' (or 'subreg', 'strict_low_part'
!      or 'zero_extract'), 'mem', 'pc', 'parallel', or 'cc0'.
  
!      If LVAL is a 'reg', 'subreg' or 'mem', it has a machine mode; then
       X must be valid for that mode.
  
!      If LVAL is a 'reg' whose machine mode is less than the full width
       of the register, then it means that the part of the register
       specified by the machine mode is given the specified value and the
       rest of the register receives an undefined value.  Likewise, if
!      LVAL is a 'subreg' whose machine mode is narrower than the mode of
       the register, the rest of the register can be changed in an
       undefined way.
  
!      If LVAL is a 'strict_low_part' of a subreg, then the part of the
!      register specified by the machine mode of the 'subreg' is given the
!      value X and the rest of the register is not changed.
  
!      If LVAL is a 'zero_extract', then the referenced part of the
       bit-field (a memory or register reference) specified by the
!      'zero_extract' is given the value X and the rest of the bit-field
!      is not changed.  Note that 'sign_extract' can not appear in LVAL.
  
!      If LVAL is '(cc0)', it has no machine mode, and X may be either a
!      'compare' expression or a value that may have any mode.  The latter
!      case represents a "test" instruction.  The expression '(set (cc0)
!      (reg:M N))' is equivalent to '(set (cc0) (compare (reg:M N)
       (const_int 0)))'.  Use the former expression to save space during
       the compilation.
  
!      If LVAL is a 'parallel', it is used to represent the case of a
       function returning a structure in multiple registers.  Each element
!      of the 'parallel' is an 'expr_list' whose first operand is a 'reg'
!      and whose second operand is a 'const_int' representing the offset
       (in bytes) into the structure at which the data in that register
       corresponds.  The first element may be null to indicate that the
       structure is also passed partly in memory.
  
!      If LVAL is '(pc)', we have a jump instruction, and the
!      possibilities for X are very limited.  It may be a 'label_ref'
!      expression (unconditional jump).  It may be an 'if_then_else'
       (conditional jump), in which case either the second or the third
!      operand must be '(pc)' (for the case which does not jump) and the
!      other of the two must be a 'label_ref' (for the case which does
!      jump).  X may also be a 'mem' or '(plus:SI (pc) Y)', where Y may be
!      a 'reg' or a 'mem'; these unusual patterns are used to represent
!      jumps through branch tables.
  
!      If LVAL is neither '(cc0)' nor '(pc)', the mode of LVAL must not be
!      'VOIDmode' and the mode of X must be valid for the mode of LVAL.
  
!      LVAL is customarily accessed with the 'SET_DEST' macro and X with
!      the 'SET_SRC' macro.
  
! '(return)'
       As the sole expression in a pattern, represents a return from the
       current function, on machines where this can be done with one
       instruction, such as VAXen.  On machines where a multi-instruction
       "epilogue" must be executed in order to return from the function,
       returning is done by jumping to a label which precedes the
!      epilogue, and the 'return' expression code is never used.
  
!      Inside an 'if_then_else' expression, represents the value to be
!      placed in 'pc' to return to the caller.
  
!      Note that an insn pattern of '(return)' is logically equivalent to
!      '(set (pc) (return))', but the latter form is never used.
  
! '(simple_return)'
!      Like '(return)', but truly represents only a function return, while
!      '(return)' may represent an insn that also performs other functions
!      of the function epilogue.  Like '(return)', this may also occur in
       conditional jumps.
  
! '(call FUNCTION NARGS)'
!      Represents a function call.  FUNCTION is a 'mem' expression whose
       address is the address of the function to be called.  NARGS is an
       expression which can be used for two purposes: on some machines it
       represents the number of bytes of stack argument; on others, it
       represents the number of argument registers.
  
       Each machine has a standard machine mode which FUNCTION must have.
!      The machine description defines macro 'FUNCTION_MODE' to expand
       into the requisite mode name.  The purpose of this mode is to
       specify what kind of addressing is allowed, on machines where the
       allowed kinds of addressing depend on the machine mode being
       addressed.
  
! '(clobber X)'
       Represents the storing or possible storing of an unpredictable,
!      undescribed value into X, which must be a 'reg', 'scratch',
!      'parallel' or 'mem' expression.
  
       One place this is used is in string instructions that store
       standard values into particular hard registers.  It may not be
!      worth the trouble to describe the values that are stored, but it is
!      essential to inform the compiler that the registers will be
       altered, lest it attempt to keep data in them across the string
       instruction.
  
!      If X is '(mem:BLK (const_int 0))' or '(mem:BLK (scratch))', it
       means that all memory locations must be presumed clobbered.  If X
!      is a 'parallel', it has the same meaning as a 'parallel' in a 'set'
!      expression.
  
!      Note that the machine description classifies certain hard registers
!      as "call-clobbered".  All function call instructions are assumed by
!      default to clobber these registers, so there is no need to use
!      'clobber' expressions to indicate this fact.  Also, each function
!      call is assumed to have the potential to alter any memory location,
!      unless the function is declared 'const'.
  
!      If the last group of expressions in a 'parallel' are each a
!      'clobber' expression whose arguments are 'reg' or 'match_scratch'
       (*note RTL Template::) expressions, the combiner phase can add the
!      appropriate 'clobber' expressions to an insn it has constructed
       when doing so will cause a pattern to be matched.
  
       This feature can be used, for example, on a machine that whose
*************** operands of these.
*** 16411,16453 ****
       register.  Similarly, a combined instruction might require a
       temporary register while the constituent instructions might not.
  
!      When a `clobber' expression for a register appears inside a
!      `parallel' with other side effects, the register allocator
       guarantees that the register is unoccupied both before and after
       that insn if it is a hard register clobber.  For pseudo-register
       clobber, the register allocator and the reload pass do not assign
       the same hard register to the clobber and the input operands if
!      there is an insn alternative containing the `&' constraint (*note
       Modifiers::) for the clobber and the hard register is in register
       classes of the clobber in the alternative.  You can clobber either
!      a specific hard register, a pseudo register, or a `scratch'
       expression; in the latter two cases, GCC will allocate a hard
       register that is available there for use as a temporary.
  
       For instructions that require a temporary register, you should use
!      `scratch' instead of a pseudo-register because this will allow the
!      combiner phase to add the `clobber' when required.  You do this by
!      coding (`clobber' (`match_scratch' ...)).  If you do clobber a
!      pseudo register, use one which appears nowhere else--generate a
!      new one each time.  Otherwise, you may confuse CSE.
  
       There is one other known use for clobbering a pseudo register in a
!      `parallel': when one of the input operands of the insn is also
       clobbered by the insn.  In this case, using the same pseudo
       register in the clobber and elsewhere in the insn produces the
       expected results.
  
! `(use X)'
       Represents the use of the value of X.  It indicates that the value
!      in X at this point in the program is needed, even though it may
!      not be apparent why this is so.  Therefore, the compiler will not
       attempt to delete previous instructions whose only effect is to
!      store a value in X.  X must be a `reg' expression.
  
!      In some situations, it may be tempting to add a `use' of a
!      register in a `parallel' to describe a situation where the value
!      of a special register will modify the behavior of the instruction.
!      A hypothetical example might be a pattern for an addition that can
       either wrap around or use saturating addition depending on the
       value of a special control register:
  
--- 16251,16293 ----
       register.  Similarly, a combined instruction might require a
       temporary register while the constituent instructions might not.
  
!      When a 'clobber' expression for a register appears inside a
!      'parallel' with other side effects, the register allocator
       guarantees that the register is unoccupied both before and after
       that insn if it is a hard register clobber.  For pseudo-register
       clobber, the register allocator and the reload pass do not assign
       the same hard register to the clobber and the input operands if
!      there is an insn alternative containing the '&' constraint (*note
       Modifiers::) for the clobber and the hard register is in register
       classes of the clobber in the alternative.  You can clobber either
!      a specific hard register, a pseudo register, or a 'scratch'
       expression; in the latter two cases, GCC will allocate a hard
       register that is available there for use as a temporary.
  
       For instructions that require a temporary register, you should use
!      'scratch' instead of a pseudo-register because this will allow the
!      combiner phase to add the 'clobber' when required.  You do this by
!      coding ('clobber' ('match_scratch' ...)).  If you do clobber a
!      pseudo register, use one which appears nowhere else--generate a new
!      one each time.  Otherwise, you may confuse CSE.
  
       There is one other known use for clobbering a pseudo register in a
!      'parallel': when one of the input operands of the insn is also
       clobbered by the insn.  In this case, using the same pseudo
       register in the clobber and elsewhere in the insn produces the
       expected results.
  
! '(use X)'
       Represents the use of the value of X.  It indicates that the value
!      in X at this point in the program is needed, even though it may not
!      be apparent why this is so.  Therefore, the compiler will not
       attempt to delete previous instructions whose only effect is to
!      store a value in X.  X must be a 'reg' expression.
  
!      In some situations, it may be tempting to add a 'use' of a register
!      in a 'parallel' to describe a situation where the value of a
!      special register will modify the behavior of the instruction.  A
!      hypothetical example might be a pattern for an addition that can
       either wrap around or use saturating addition depending on the
       value of a special control register:
  
*************** operands of these.
*** 16455,16490 ****
                                                   (reg:SI 4)] 0))
                       (use (reg:SI 1))])
  
       This will not work, several of the optimizers only look at
       expressions locally; it is very likely that if you have multiple
!      insns with identical inputs to the `unspec', they will be
!      optimized away even if register 1 changes in between.
  
!      This means that `use' can _only_ be used to describe that the
!      register is live.  You should think twice before adding `use'
!      statements, more often you will want to use `unspec' instead.  The
!      `use' RTX is most commonly useful to describe that a fixed
!      register is implicitly used in an insn.  It is also safe to use in
!      patterns where the compiler knows for other reasons that the result
!      of the whole pattern is variable, such as `movmemM' or `call'
!      patterns.
  
!      During the reload phase, an insn that has a `use' as pattern can
!      carry a reg_equal note.  These `use' insns will be deleted before
       the reload phase exits.
  
!      During the delayed branch scheduling phase, X may be an insn.
!      This indicates that X previously was located at this place in the
!      code and its data dependencies need to be taken into account.
!      These `use' insns will be deleted before the delayed branch
!      scheduling phase exits.
  
! `(parallel [X0 X1 ...])'
       Represents several side effects performed in parallel.  The square
!      brackets stand for a vector; the operand of `parallel' is a vector
       of expressions.  X0, X1 and so on are individual side effect
!      expressions--expressions of code `set', `call', `return',
!      `simple_return', `clobber' or `use'.
  
       "In parallel" means that first all the values used in the
       individual side-effects are computed, and second all the actual
--- 16295,16330 ----
                                                   (reg:SI 4)] 0))
                       (use (reg:SI 1))])
  
+ 
       This will not work, several of the optimizers only look at
       expressions locally; it is very likely that if you have multiple
!      insns with identical inputs to the 'unspec', they will be optimized
!      away even if register 1 changes in between.
  
!      This means that 'use' can _only_ be used to describe that the
!      register is live.  You should think twice before adding 'use'
!      statements, more often you will want to use 'unspec' instead.  The
!      'use' RTX is most commonly useful to describe that a fixed register
!      is implicitly used in an insn.  It is also safe to use in patterns
!      where the compiler knows for other reasons that the result of the
!      whole pattern is variable, such as 'movmemM' or 'call' patterns.
  
!      During the reload phase, an insn that has a 'use' as pattern can
!      carry a reg_equal note.  These 'use' insns will be deleted before
       the reload phase exits.
  
!      During the delayed branch scheduling phase, X may be an insn.  This
!      indicates that X previously was located at this place in the code
!      and its data dependencies need to be taken into account.  These
!      'use' insns will be deleted before the delayed branch scheduling
!      phase exits.
  
! '(parallel [X0 X1 ...])'
       Represents several side effects performed in parallel.  The square
!      brackets stand for a vector; the operand of 'parallel' is a vector
       of expressions.  X0, X1 and so on are individual side effect
!      expressions--expressions of code 'set', 'call', 'return',
!      'simple_return', 'clobber' or 'use'.
  
       "In parallel" means that first all the values used in the
       individual side-effects are computed, and second all the actual
*************** operands of these.
*** 16495,16507 ****
  
       says unambiguously that the values of hard register 1 and the
       memory location addressed by it are interchanged.  In both places
!      where `(reg:SI 1)' appears as a memory address it refers to the
       value in register 1 _before_ the execution of the insn.
  
!      It follows that it is _incorrect_ to use `parallel' and expect the
!      result of one `set' to be available for the next one.  For
!      example, people sometimes attempt to represent a jump-if-zero
!      instruction this way:
  
            (parallel [(set (cc0) (reg:SI 34))
                       (set (pc) (if_then_else
--- 16335,16347 ----
  
       says unambiguously that the values of hard register 1 and the
       memory location addressed by it are interchanged.  In both places
!      where '(reg:SI 1)' appears as a memory address it refers to the
       value in register 1 _before_ the execution of the insn.
  
!      It follows that it is _incorrect_ to use 'parallel' and expect the
!      result of one 'set' to be available for the next one.  For example,
!      people sometimes attempt to represent a jump-if-zero instruction
!      this way:
  
            (parallel [(set (cc0) (reg:SI 34))
                       (set (pc) (if_then_else
*************** operands of these.
*** 16514,16592 ****
       on the new value that is set by this instruction.
  
       Peephole optimization, which takes place together with final
!      assembly code output, can produce insns whose patterns consist of
!      a `parallel' whose elements are the operands needed to output the
!      resulting assembler code--often `reg', `mem' or constant
       expressions.  This would not be well-formed RTL at any other stage
       in compilation, but it is OK then because no further optimization
       remains to be done.  However, the definition of the macro
!      `NOTICE_UPDATE_CC', if any, must deal with such insns if you
!      define any peephole optimizations.
  
! `(cond_exec [COND EXPR])'
       Represents a conditionally executed expression.  The EXPR is
!      executed only if the COND is nonzero.  The COND expression must
!      not have side-effects, but the EXPR may very well have
!      side-effects.
  
! `(sequence [INSNS ...])'
!      Represents a sequence of insns.  If a `sequence' appears in the
       chain of insns, then each of the INSNS that appears in the sequence
!      must be suitable for appearing in the chain of insns, i.e. must
!      satisfy the `INSN_P' predicate.
  
!      After delay-slot scheduling is completed, an insn and all the
!      insns that reside in its delay slots are grouped together into a
!      `sequence'.  The insn requiring the delay slot is the first insn
!      in the vector; subsequent insns are to be placed in the delay slot.
  
!      `INSN_ANNULLED_BRANCH_P' is set on an insn in a delay slot to
       indicate that a branch insn should be used that will conditionally
       annul the effect of the insns in the delay slots.  In such a case,
!      `INSN_FROM_TARGET_P' indicates that the insn is from the target of
       the branch and should be executed only if the branch is taken;
       otherwise the insn should be executed only if the branch is not
       taken.  *Note Delay Slots::.
  
!      Some back ends also use `sequence' objects for purposes other than
       delay-slot groups.  This is not supported in the common parts of
       the compiler, which treat such sequences as delay-slot groups.
  
       DWARF2 Call Frame Address (CFA) adjustments are sometimes also
!      expressed using `sequence' objects as the value of a
!      `RTX_FRAME_RELATED_P' note.  This only happens if the CFA
       adjustments cannot be easily derived from the pattern of the
       instruction to which the note is attached.  In such cases, the
       value of the note is used instead of best-guesing the semantics of
       the instruction.  The back end can attach notes containing a
!      `sequence' of `set' patterns that express the effect of the parent
       instruction.
  
   These expression codes appear in place of a side effect, as the body of
  an insn, though strictly speaking they do not always describe side
  effects as such:
  
! `(asm_input S)'
       Represents literal assembler code as described by the string S.
  
! `(unspec [OPERANDS ...] INDEX)'
! `(unspec_volatile [OPERANDS ...] INDEX)'
!      Represents a machine-specific operation on OPERANDS.  INDEX
!      selects between multiple machine-specific operations.
!      `unspec_volatile' is used for volatile operations and operations
!      that may trap; `unspec' is used for other operations.
  
!      These codes may appear inside a `pattern' of an insn, inside a
!      `parallel', or inside an expression.
  
! `(addr_vec:M [LR0 LR1 ...])'
       Represents a table of jump addresses.  The vector elements LR0,
!      etc., are `label_ref' expressions.  The mode M specifies how much
!      space is given to each address; normally M would be `Pmode'.
  
! `(addr_diff_vec:M BASE [LR0 LR1 ...] MIN MAX FLAGS)'
       Represents a table of jump addresses expressed as offsets from
!      BASE.  The vector elements LR0, etc., are `label_ref' expressions
       and so is BASE.  The mode M specifies how much space is given to
       each address-difference.  MIN and MAX are set up by branch
       shortening and hold a label with a minimum and a maximum address,
--- 16354,16431 ----
       on the new value that is set by this instruction.
  
       Peephole optimization, which takes place together with final
!      assembly code output, can produce insns whose patterns consist of a
!      'parallel' whose elements are the operands needed to output the
!      resulting assembler code--often 'reg', 'mem' or constant
       expressions.  This would not be well-formed RTL at any other stage
       in compilation, but it is OK then because no further optimization
       remains to be done.  However, the definition of the macro
!      'NOTICE_UPDATE_CC', if any, must deal with such insns if you define
!      any peephole optimizations.
  
! '(cond_exec [COND EXPR])'
       Represents a conditionally executed expression.  The EXPR is
!      executed only if the COND is nonzero.  The COND expression must not
!      have side-effects, but the EXPR may very well have side-effects.
  
! '(sequence [INSNS ...])'
!      Represents a sequence of insns.  If a 'sequence' appears in the
       chain of insns, then each of the INSNS that appears in the sequence
!      must be suitable for appearing in the chain of insns, i.e.  must
!      satisfy the 'INSN_P' predicate.
  
!      After delay-slot scheduling is completed, an insn and all the insns
!      that reside in its delay slots are grouped together into a
!      'sequence'.  The insn requiring the delay slot is the first insn in
!      the vector; subsequent insns are to be placed in the delay slot.
  
!      'INSN_ANNULLED_BRANCH_P' is set on an insn in a delay slot to
       indicate that a branch insn should be used that will conditionally
       annul the effect of the insns in the delay slots.  In such a case,
!      'INSN_FROM_TARGET_P' indicates that the insn is from the target of
       the branch and should be executed only if the branch is taken;
       otherwise the insn should be executed only if the branch is not
       taken.  *Note Delay Slots::.
  
!      Some back ends also use 'sequence' objects for purposes other than
       delay-slot groups.  This is not supported in the common parts of
       the compiler, which treat such sequences as delay-slot groups.
  
       DWARF2 Call Frame Address (CFA) adjustments are sometimes also
!      expressed using 'sequence' objects as the value of a
!      'RTX_FRAME_RELATED_P' note.  This only happens if the CFA
       adjustments cannot be easily derived from the pattern of the
       instruction to which the note is attached.  In such cases, the
       value of the note is used instead of best-guesing the semantics of
       the instruction.  The back end can attach notes containing a
!      'sequence' of 'set' patterns that express the effect of the parent
       instruction.
  
   These expression codes appear in place of a side effect, as the body of
  an insn, though strictly speaking they do not always describe side
  effects as such:
  
! '(asm_input S)'
       Represents literal assembler code as described by the string S.
  
! '(unspec [OPERANDS ...] INDEX)'
! '(unspec_volatile [OPERANDS ...] INDEX)'
!      Represents a machine-specific operation on OPERANDS.  INDEX selects
!      between multiple machine-specific operations.  'unspec_volatile' is
!      used for volatile operations and operations that may trap; 'unspec'
!      is used for other operations.
  
!      These codes may appear inside a 'pattern' of an insn, inside a
!      'parallel', or inside an expression.
  
! '(addr_vec:M [LR0 LR1 ...])'
       Represents a table of jump addresses.  The vector elements LR0,
!      etc., are 'label_ref' expressions.  The mode M specifies how much
!      space is given to each address; normally M would be 'Pmode'.
  
! '(addr_diff_vec:M BASE [LR0 LR1 ...] MIN MAX FLAGS)'
       Represents a table of jump addresses expressed as offsets from
!      BASE.  The vector elements LR0, etc., are 'label_ref' expressions
       and so is BASE.  The mode M specifies how much space is given to
       each address-difference.  MIN and MAX are set up by branch
       shortening and hold a label with a minimum and a maximum address,
*************** effects as such:
*** 16594,16606 ****
       and MAX to the containing insn and of MIN and MAX to BASE.  See
       rtl.def for details.
  
! `(prefetch:M ADDR RW LOCALITY)'
       Represents prefetch of memory at address ADDR.  Operand RW is 1 if
       the prefetch is for data to be written, 0 otherwise; targets that
       do not support write prefetches should treat this as a normal
       prefetch.  Operand LOCALITY specifies the amount of temporal
!      locality; 0 if there is none or 1, 2, or 3 for increasing levels
!      of temporal locality; targets that do not support locality hints
       should ignore this.
  
       This insn is used to minimize cache-miss latency by moving data
--- 16433,16445 ----
       and MAX to the containing insn and of MIN and MAX to BASE.  See
       rtl.def for details.
  
! '(prefetch:M ADDR RW LOCALITY)'
       Represents prefetch of memory at address ADDR.  Operand RW is 1 if
       the prefetch is for data to be written, 0 otherwise; targets that
       do not support write prefetches should treat this as a normal
       prefetch.  Operand LOCALITY specifies the amount of temporal
!      locality; 0 if there is none or 1, 2, or 3 for increasing levels of
!      temporal locality; targets that do not support locality hints
       should ignore this.
  
       This insn is used to minimize cache-miss latency by moving data
*************** File: gccint.info,  Node: Incdec,  Next:
*** 16615,16653 ****
  
  Six special side-effect expression codes appear as memory addresses.
  
! `(pre_dec:M X)'
       Represents the side effect of decrementing X by a standard amount
       and represents also the value that X has after being decremented.
!      X must be a `reg' or `mem', but most machines allow only a `reg'.
!      M must be the machine mode for pointers on the machine in use.
!      The amount X is decremented by is the length in bytes of the
!      machine mode of the containing memory reference of which this
!      expression serves as the address.  Here is an example of its use:
  
            (mem:DF (pre_dec:SI (reg:SI 39)))
  
       This says to decrement pseudo register 39 by the length of a
!      `DFmode' value and use the result to address a `DFmode' value.
  
! `(pre_inc:M X)'
       Similar, but specifies incrementing X instead of decrementing it.
  
! `(post_dec:M X)'
!      Represents the same side effect as `pre_dec' but a different
!      value.  The value represented here is the value X has before being
       decremented.
  
! `(post_inc:M X)'
       Similar, but specifies incrementing X instead of decrementing it.
  
! `(post_modify:M X Y)'
       Represents the side effect of setting X to Y and represents X
!      before X is modified.  X must be a `reg' or `mem', but most
!      machines allow only a `reg'.  M must be the machine mode for
       pointers on the machine in use.
  
!      The expression Y must be one of three forms: `(plus:M X Z)',
!      `(minus:M X Z)', or `(plus:M X I)', where Z is an index register
       and I is a constant.
  
       Here is an example of its use:
--- 16454,16493 ----
  
  Six special side-effect expression codes appear as memory addresses.
  
! '(pre_dec:M X)'
       Represents the side effect of decrementing X by a standard amount
       and represents also the value that X has after being decremented.
!      X must be a 'reg' or 'mem', but most machines allow only a 'reg'.
!      M must be the machine mode for pointers on the machine in use.  The
!      amount X is decremented by is the length in bytes of the machine
!      mode of the containing memory reference of which this expression
!      serves as the address.  Here is an example of its use:
  
            (mem:DF (pre_dec:SI (reg:SI 39)))
  
       This says to decrement pseudo register 39 by the length of a
!      'DFmode' value and use the result to address a 'DFmode' value.
  
! '(pre_inc:M X)'
       Similar, but specifies incrementing X instead of decrementing it.
  
! '(post_dec:M X)'
!      Represents the same side effect as 'pre_dec' but a different value.
!      The value represented here is the value X has before being
       decremented.
  
! '(post_inc:M X)'
       Similar, but specifies incrementing X instead of decrementing it.
  
! '(post_modify:M X Y)'
! 
       Represents the side effect of setting X to Y and represents X
!      before X is modified.  X must be a 'reg' or 'mem', but most
!      machines allow only a 'reg'.  M must be the machine mode for
       pointers on the machine in use.
  
!      The expression Y must be one of three forms: '(plus:M X Z)',
!      '(minus:M X Z)', or '(plus:M X I)', where Z is an index register
       and I is a constant.
  
       Here is an example of its use:
*************** Six special side-effect expression codes
*** 16658,16673 ****
       This says to modify pseudo register 42 by adding the contents of
       pseudo register 48 to it, after the use of what ever 42 points to.
  
! `(pre_modify:M X EXPR)'
       Similar except side effects happen before the use.
  
   These embedded side effect expressions must be used with care.
! Instruction patterns may not use them.  Until the `flow' pass of the
  compiler, they may occur only to represent pushes onto the stack.  The
! `flow' pass finds cases where registers are incremented or decremented
! in one instruction and used as an address shortly before or after;
! these cases are then transformed to use pre- or post-increment or
! -decrement.
  
   If a register used as the operand of these expressions is used in
  another address in an insn, the original value of the register is used.
--- 16498,16512 ----
       This says to modify pseudo register 42 by adding the contents of
       pseudo register 48 to it, after the use of what ever 42 points to.
  
! '(pre_modify:M X EXPR)'
       Similar except side effects happen before the use.
  
   These embedded side effect expressions must be used with care.
! Instruction patterns may not use them.  Until the 'flow' pass of the
  compiler, they may occur only to represent pushes onto the stack.  The
! 'flow' pass finds cases where registers are incremented or decremented
! in one instruction and used as an address shortly before or after; these
! cases are then transformed to use pre- or post-increment or -decrement.
  
   If a register used as the operand of these expressions is used in
  another address in an insn, the original value of the register is used.
*************** insns behave differently on different ma
*** 16677,16688 ****
  as ambiguous and disallowed.
  
   An instruction that can be represented with an embedded side effect
! could also be represented using `parallel' containing an additional
! `set' to describe how the address register is altered.  This is not
! done because machines that allow these operations at all typically
! allow them wherever a memory address is called for.  Describing them as
! additional parallel stores would require doubling the number of entries
! in the machine description.
  
  
  File: gccint.info,  Node: Assembler,  Next: Debug Information,  Prev: Incdec,  Up: RTL
--- 16516,16527 ----
  as ambiguous and disallowed.
  
   An instruction that can be represented with an embedded side effect
! could also be represented using 'parallel' containing an additional
! 'set' to describe how the address register is altered.  This is not done
! because machines that allow these operations at all typically allow them
! wherever a memory address is called for.  Describing them as additional
! parallel stores would require doubling the number of entries in the
! machine description.
  
  
  File: gccint.info,  Node: Assembler,  Next: Debug Information,  Prev: Incdec,  Up: RTL
*************** File: gccint.info,  Node: Assembler,  Ne
*** 16690,16704 ****
  13.17 Assembler Instructions as Expressions
  ===========================================
  
! The RTX code `asm_operands' represents a value produced by a
! user-specified assembler instruction.  It is used to represent an `asm'
! statement with arguments.  An `asm' statement with a single output
  operand, like this:
  
       asm ("foo %1,%2,%0" : "=a" (outputvar) : "g" (x + y), "di" (*z));
  
! is represented using a single `asm_operands' RTX which represents the
! value that is stored in `outputvar':
  
       (set RTX-FOR-OUTPUTVAR
            (asm_operands "foo %1,%2,%0" "a" 0
--- 16529,16543 ----
  13.17 Assembler Instructions as Expressions
  ===========================================
  
! The RTX code 'asm_operands' represents a value produced by a
! user-specified assembler instruction.  It is used to represent an 'asm'
! statement with arguments.  An 'asm' statement with a single output
  operand, like this:
  
       asm ("foo %1,%2,%0" : "=a" (outputvar) : "g" (x + y), "di" (*z));
  
! is represented using a single 'asm_operands' RTX which represents the
! value that is stored in 'outputvar':
  
       (set RTX-FOR-OUTPUTVAR
            (asm_operands "foo %1,%2,%0" "a" 0
*************** value that is stored in `outputvar':
*** 16706,16720 ****
                          [(asm_input:M1 "g")
                           (asm_input:M2 "di")]))
  
! Here the operands of the `asm_operands' RTX are the assembler template
  string, the output-operand's constraint, the index-number of the output
  operand among the output operands specified, a vector of input operand
! RTX's, and a vector of input-operand modes and constraints.  The mode
! M1 is the mode of the sum `x+y'; M2 is that of `*z'.
  
!  When an `asm' statement has multiple output values, its insn has
! several such `set' RTX's inside of a `parallel'.  Each `set' contains
! an `asm_operands'; all of these share the same assembler template and
  vectors, but each contains the constraint for the respective output
  operand.  They are also distinguished by the output-operand index
  number, which is 0, 1, ... for successive output operands.
--- 16545,16559 ----
                          [(asm_input:M1 "g")
                           (asm_input:M2 "di")]))
  
! Here the operands of the 'asm_operands' RTX are the assembler template
  string, the output-operand's constraint, the index-number of the output
  operand among the output operands specified, a vector of input operand
! RTX's, and a vector of input-operand modes and constraints.  The mode M1
! is the mode of the sum 'x+y'; M2 is that of '*z'.
  
!  When an 'asm' statement has multiple output values, its insn has
! several such 'set' RTX's inside of a 'parallel'.  Each 'set' contains an
! 'asm_operands'; all of these share the same assembler template and
  vectors, but each contains the constraint for the respective output
  operand.  They are also distinguished by the output-operand index
  number, which is 0, 1, ... for successive output operands.
*************** File: gccint.info,  Node: Debug Informat
*** 16725,16752 ****
  13.18 Variable Location Debug Information in RTL
  ================================================
  
! Variable tracking relies on `MEM_EXPR' and `REG_EXPR' annotations to
  determine what user variables memory and register references refer to.
  
   Variable tracking at assignments uses these notes only when they refer
  to variables that live at fixed locations (e.g., addressable variables,
! global non-automatic variables).  For variables whose location may
! vary, it relies on the following types of notes.
  
! `(var_location:MODE VAR EXP STAT)'
!      Binds variable `var', a tree, to value EXP, an RTL expression.  It
!      appears only in `NOTE_INSN_VAR_LOCATION' and `DEBUG_INSN's, with
!      slightly different meanings.  MODE, if present, represents the
!      mode of EXP, which is useful if it is a modeless expression.  STAT
!      is only meaningful in notes, indicating whether the variable is
!      known to be initialized or uninitialized.
  
! `(debug_expr:MODE DECL)'
!      Stands for the value bound to the `DEBUG_EXPR_DECL' DECL, that
!      points back to it, within value expressions in `VAR_LOCATION'
       nodes.
  
- 
  
  File: gccint.info,  Node: Insns,  Next: Calls,  Prev: Debug Information,  Up: RTL
  
--- 16564,16590 ----
  13.18 Variable Location Debug Information in RTL
  ================================================
  
! Variable tracking relies on 'MEM_EXPR' and 'REG_EXPR' annotations to
  determine what user variables memory and register references refer to.
  
   Variable tracking at assignments uses these notes only when they refer
  to variables that live at fixed locations (e.g., addressable variables,
! global non-automatic variables).  For variables whose location may vary,
! it relies on the following types of notes.
  
! '(var_location:MODE VAR EXP STAT)'
!      Binds variable 'var', a tree, to value EXP, an RTL expression.  It
!      appears only in 'NOTE_INSN_VAR_LOCATION' and 'DEBUG_INSN's, with
!      slightly different meanings.  MODE, if present, represents the mode
!      of EXP, which is useful if it is a modeless expression.  STAT is
!      only meaningful in notes, indicating whether the variable is known
!      to be initialized or uninitialized.
  
! '(debug_expr:MODE DECL)'
!      Stands for the value bound to the 'DEBUG_EXPR_DECL' DECL, that
!      points back to it, within value expressions in 'VAR_LOCATION'
       nodes.
  
  
  File: gccint.info,  Node: Insns,  Next: Calls,  Prev: Debug Information,  Up: RTL
  
*************** File: gccint.info,  Node: Insns,  Next:
*** 16756,16762 ****
  The RTL representation of the code for a function is a doubly-linked
  chain of objects called "insns".  Insns are expressions with special
  codes that are used for no other purpose.  Some insns are actual
! instructions; others represent dispatch tables for `switch' statements;
  others represent labels to jump to or various sorts of declarative
  information.
  
--- 16594,16600 ----
  The RTL representation of the code for a function is a doubly-linked
  chain of objects called "insns".  Insns are expressions with special
  codes that are used for no other purpose.  Some insns are actual
! instructions; others represent dispatch tables for 'switch' statements;
  others represent labels to jump to or various sorts of declarative
  information.
  
*************** id-number that distinguishes it from all
*** 16765,16789 ****
  function (after delayed branch scheduling, copies of an insn with the
  same id-number may be present in multiple places in a function, but
  these copies will always be identical and will only appear inside a
! `sequence'), and chain pointers to the preceding and following insns.
  These three fields occupy the same position in every insn, independent
! of the expression code of the insn.  They could be accessed with `XEXP'
! and `XINT', but instead three special macros are always used:
  
! `INSN_UID (I)'
       Accesses the unique id of insn I.
  
! `PREV_INSN (I)'
       Accesses the chain pointer to the insn preceding I.  If I is the
       first insn, this is a null pointer.
  
! `NEXT_INSN (I)'
       Accesses the chain pointer to the insn following I.  If I is the
       last insn, this is a null pointer.
  
!  The first insn in the chain is obtained by calling `get_insns'; the
! last insn is the result of calling `get_last_insn'.  Within the chain
! delimited by these insns, the `NEXT_INSN' and `PREV_INSN' pointers must
  always correspond: if INSN is not the first insn,
  
       NEXT_INSN (PREV_INSN (INSN)) == INSN
--- 16603,16627 ----
  function (after delayed branch scheduling, copies of an insn with the
  same id-number may be present in multiple places in a function, but
  these copies will always be identical and will only appear inside a
! 'sequence'), and chain pointers to the preceding and following insns.
  These three fields occupy the same position in every insn, independent
! of the expression code of the insn.  They could be accessed with 'XEXP'
! and 'XINT', but instead three special macros are always used:
  
! 'INSN_UID (I)'
       Accesses the unique id of insn I.
  
! 'PREV_INSN (I)'
       Accesses the chain pointer to the insn preceding I.  If I is the
       first insn, this is a null pointer.
  
! 'NEXT_INSN (I)'
       Accesses the chain pointer to the insn following I.  If I is the
       last insn, this is a null pointer.
  
!  The first insn in the chain is obtained by calling 'get_insns'; the
! last insn is the result of calling 'get_last_insn'.  Within the chain
! delimited by these insns, the 'NEXT_INSN' and 'PREV_INSN' pointers must
  always correspond: if INSN is not the first insn,
  
       NEXT_INSN (PREV_INSN (INSN)) == INSN
*************** is always true and if INSN is not the la
*** 16795,17089 ****
  is always true.
  
   After delay slot scheduling, some of the insns in the chain might be
! `sequence' expressions, which contain a vector of insns.  The value of
! `NEXT_INSN' in all but the last of these insns is the next insn in the
! vector; the value of `NEXT_INSN' of the last insn in the vector is the
! same as the value of `NEXT_INSN' for the `sequence' in which it is
! contained.  Similar rules apply for `PREV_INSN'.
  
   This means that the above invariants are not necessarily true for insns
! inside `sequence' expressions.  Specifically, if INSN is the first insn
! in a `sequence', `NEXT_INSN (PREV_INSN (INSN))' is the insn containing
! the `sequence' expression, as is the value of `PREV_INSN (NEXT_INSN
! (INSN))' if INSN is the last insn in the `sequence' expression.  You
! can use these expressions to find the containing `sequence' expression.
  
   Every insn has one of the following expression codes:
  
! `insn'
!      The expression code `insn' is used for instructions that do not
!      jump and do not do function calls.  `sequence' expressions are
!      always contained in insns with code `insn' even if one of those
       insns should jump or do function calls.
  
!      Insns with code `insn' have four additional fields beyond the three
       mandatory ones listed above.  These four are described in a table
       below.
  
! `jump_insn'
!      The expression code `jump_insn' is used for instructions that may
!      jump (or, more generally, may contain `label_ref' expressions to
!      which `pc' can be set in that instruction).  If there is an
       instruction to return from the current function, it is recorded as
!      a `jump_insn'.
  
!      `jump_insn' insns have the same extra fields as `insn' insns,
       accessed in the same way and in addition contain a field
!      `JUMP_LABEL' which is defined once jump optimization has completed.
  
       For simple conditional and unconditional jumps, this field contains
!      the `code_label' to which this insn will (possibly conditionally)
!      branch.  In a more complex jump, `JUMP_LABEL' records one of the
       labels that the insn refers to; other jump target labels are
!      recorded as `REG_LABEL_TARGET' notes.  The exception is `addr_vec'
!      and `addr_diff_vec', where `JUMP_LABEL' is `NULL_RTX' and the only
       way to find the labels is to scan the entire body of the insn.
  
!      Return insns count as jumps, but their `JUMP_LABEL' is `RETURN' or
!      `SIMPLE_RETURN'.
  
! `call_insn'
!      The expression code `call_insn' is used for instructions that may
       do function calls.  It is important to distinguish these
       instructions because they imply that certain registers and memory
       locations may be altered unpredictably.
  
!      `call_insn' insns have the same extra fields as `insn' insns,
       accessed in the same way and in addition contain a field
!      `CALL_INSN_FUNCTION_USAGE', which contains a list (chain of
!      `expr_list' expressions) containing `use', `clobber' and sometimes
!      `set' expressions that denote hard registers and `mem's used or
       clobbered by the called function.
  
!      A `mem' generally points to a stack slot in which arguments passed
       to the libcall by reference (*note TARGET_PASS_BY_REFERENCE:
       Register Arguments.) are stored.  If the argument is caller-copied
       (*note TARGET_CALLEE_COPIES: Register Arguments.), the stack slot
!      will be mentioned in `clobber' and `use' entries; if it's
!      callee-copied, only a `use' will appear, and the `mem' may point
!      to addresses that are not stack slots.
  
!      Registers occurring inside a `clobber' in this list augment
!      registers specified in `CALL_USED_REGISTERS' (*note Register
       Basics::).
  
!      If the list contains a `set' involving two registers, it indicates
!      that the function returns one of its arguments.  Such a `set' may
       look like a no-op if the same register holds the argument and the
       return value.
  
! `code_label'
!      A `code_label' insn represents a label that a jump insn can jump
       to.  It contains two special fields of data in addition to the
!      three standard ones.  `CODE_LABEL_NUMBER' is used to hold the
       "label number", a number that identifies this label uniquely among
       all the labels in the compilation (not just in the current
       function).  Ultimately, the label is represented in the assembler
!      output as an assembler label, usually of the form `LN' where N is
       the label number.
  
!      When a `code_label' appears in an RTL expression, it normally
!      appears within a `label_ref' which represents the address of the
       label, as a number.
  
!      Besides as a `code_label', a label can also be represented as a
!      `note' of type `NOTE_INSN_DELETED_LABEL'.
  
!      The field `LABEL_NUSES' is only defined once the jump optimization
       phase is completed.  It contains the number of times this label is
       referenced in the current function.
  
!      The field `LABEL_KIND' differentiates four different types of
!      labels: `LABEL_NORMAL', `LABEL_STATIC_ENTRY',
!      `LABEL_GLOBAL_ENTRY', and `LABEL_WEAK_ENTRY'.  The only labels
!      that do not have type `LABEL_NORMAL' are "alternate entry points"
!      to the current function.  These may be static (visible only in the
!      containing translation unit), global (exposed to all translation
!      units), or weak (global, but can be overridden by another symbol
!      with the same name).
  
       Much of the compiler treats all four kinds of label identically.
       Some of it needs to know whether or not a label is an alternate
!      entry point; for this purpose, the macro `LABEL_ALT_ENTRY_P' is
!      provided.  It is equivalent to testing whether `LABEL_KIND (label)
       == LABEL_NORMAL'.  The only place that cares about the distinction
       between static, global, and weak alternate entry points, besides
       the front-end code that creates them, is the function
!      `output_alternate_entry_point', in `final.c'.
  
!      To set the kind of a label, use the `SET_LABEL_KIND' macro.
  
! `jump_table_data'
!      A `jump_table_data' insn is a placeholder for the jump-table data
!      of a `casesi' or `tablejump' insn.  They are placed after a
!      `tablejump_p' insn.  A `jump_table_data' insn is not part o a
!      basic blockm but it is associated with the basic block that ends
!      with the `tablejump_p' insn.  The `PATTERN' of a `jump_table_data'
!      is always either an `addr_vec' or an `addr_diff_vec', and a
!      `jump_table_data' insn is always preceded by a `code_label'.  The
!      `tablejump_p' insn refers to that `code_label' via its
!      `JUMP_LABEL'.
  
! `barrier'
       Barriers are placed in the instruction stream when control cannot
       flow past them.  They are placed after unconditional jump
!      instructions to indicate that the jumps are unconditional and
!      after calls to `volatile' functions, which do not return (e.g.,
!      `exit').  They contain no information beyond the three standard
!      fields.
  
! `note'
!      `note' insns are used to represent additional debugging and
       declarative information.  They contain two nonstandard fields, an
!      integer which is accessed with the macro `NOTE_LINE_NUMBER' and a
!      string accessed with `NOTE_SOURCE_FILE'.
  
!      If `NOTE_LINE_NUMBER' is positive, the note represents the
!      position of a source line and `NOTE_SOURCE_FILE' is the source
!      file name that the line came from.  These notes control generation
!      of line number data in the assembler output.
  
!      Otherwise, `NOTE_LINE_NUMBER' is not really a line number but a
!      code with one of the following values (and `NOTE_SOURCE_FILE' must
       contain a null pointer):
  
!     `NOTE_INSN_DELETED'
            Such a note is completely ignorable.  Some passes of the
            compiler delete insns by altering them into notes of this
            kind.
  
!     `NOTE_INSN_DELETED_LABEL'
!           This marks what used to be a `code_label', but was not used
!           for other purposes than taking its address and was
!           transformed to mark that no code jumps to it.
  
!     `NOTE_INSN_BLOCK_BEG'
!     `NOTE_INSN_BLOCK_END'
            These types of notes indicate the position of the beginning
!           and end of a level of scoping of variable names.  They
!           control the output of debugging information.
  
!     `NOTE_INSN_EH_REGION_BEG'
!     `NOTE_INSN_EH_REGION_END'
            These types of notes indicate the position of the beginning
            and end of a level of scoping for exception handling.
!           `NOTE_EH_HANDLER' identifies which region is associated with
            these notes.
  
!     `NOTE_INSN_FUNCTION_BEG'
            Appears at the start of the function body, after the function
            prologue.
  
!     `NOTE_INSN_VAR_LOCATION'
            This note is used to generate variable location debugging
            information.  It indicates that the user variable in its
!           `VAR_LOCATION' operand is at the location given in the RTL
            expression, or holds a value that can be computed by
            evaluating the RTL expression from that static point in the
            program up to the next such note for the same user variable.
  
- 
       These codes are printed symbolically when they appear in debugging
       dumps.
  
! `debug_insn'
!      The expression code `debug_insn' is used for pseudo-instructions
       that hold debugging information for variable tracking at
!      assignments (see `-fvar-tracking-assignments' option).  They are
!      the RTL representation of `GIMPLE_DEBUG' statements (*note
!      `GIMPLE_DEBUG'::), with a `VAR_LOCATION' operand that binds a user
!      variable tree to an RTL representation of the `value' in the
!      corresponding statement.  A `DEBUG_EXPR' in it stands for the
!      value bound to the corresponding `DEBUG_EXPR_DECL'.
  
       Throughout optimization passes, binding information is kept in
       pseudo-instruction form, so that, unlike notes, it gets the same
       treatment and adjustments that regular instructions would.  It is
       the variable tracking pass that turns these pseudo-instructions
!      into var location notes, analyzing control flow, value
!      equivalences and changes to registers and memory referenced in
!      value expressions, propagating the values of debug temporaries and
       determining expressions that can be used to compute the value of
       each user variable at as many points (ranges, actually) in the
       program as possible.
  
!      Unlike `NOTE_INSN_VAR_LOCATION', the value expression in an
!      `INSN_VAR_LOCATION' denotes a value at that specific point in the
       program, rather than an expression that can be evaluated at any
!      later point before an overriding `VAR_LOCATION' is encountered.
!      E.g., if a user variable is bound to a `REG' and then a subsequent
!      insn modifies the `REG', the note location would keep mapping the
       user variable to the register across the insn, whereas the insn
       location would keep the variable bound to the value, so that the
       variable tracking pass would emit another location note for the
       variable at the point in which the register is modified.
  
! 
!  The machine mode of an insn is normally `VOIDmode', but some phases
! use the mode for various purposes.
  
   The common subexpression elimination pass sets the mode of an insn to
! `QImode' when it is the first insn in a block that has already been
  processed.
  
   The second Haifa scheduling pass, for targets that can multiple issue,
! sets the mode of an insn to `TImode' when it is believed that the
! instruction begins an issue group.  That is, when the instruction
! cannot issue simultaneously with the previous.  This may be relied on
! by later passes, in particular machine-dependent reorg.
  
!  Here is a table of the extra fields of `insn', `jump_insn' and
! `call_insn' insns:
  
! `PATTERN (I)'
       An expression for the side effect performed by this insn.  This
!      must be one of the following codes: `set', `call', `use',
!      `clobber', `return', `simple_return', `asm_input', `asm_output',
!      `addr_vec', `addr_diff_vec', `trap_if', `unspec',
!      `unspec_volatile', `parallel', `cond_exec', or `sequence'.  If it
!      is a `parallel', each element of the `parallel' must be one these
!      codes, except that `parallel' expressions cannot be nested and
!      `addr_vec' and `addr_diff_vec' are not permitted inside a
!      `parallel' expression.
  
! `INSN_CODE (I)'
       An integer that says which pattern in the machine description
       matches this insn, or -1 if the matching has not yet been
       attempted.
  
       Such matching is never attempted and this field remains -1 on an
!      insn whose pattern consists of a single `use', `clobber',
!      `asm_input', `addr_vec' or `addr_diff_vec' expression.
  
!      Matching is also never attempted on insns that result from an `asm'
!      statement.  These contain at least one `asm_operands' expression.
!      The function `asm_noperands' returns a non-negative value for such
       insns.
  
!      In the debugging output, this field is printed as a number
!      followed by a symbolic representation that locates the pattern in
!      the `md' file as some small positive or negative offset from a
!      named pattern.
  
! `LOG_LINKS (I)'
!      A list (chain of `insn_list' expressions) giving information about
       dependencies between instructions within a basic block.  Neither a
       jump nor a label may come between the related insns.  These are
       only used by the schedulers and by combine.  This is a deprecated
       data structure.  Def-use and use-def chains are now preferred.
  
! `REG_NOTES (I)'
!      A list (chain of `expr_list', `insn_list' and `int_list'
       expressions) giving miscellaneous information about the insn.  It
       is often information pertaining to the registers used in this insn.
  
!  The `LOG_LINKS' field of an insn is a chain of `insn_list'
! expressions.  Each of these has two operands: the first is an insn, and
! the second is another `insn_list' expression (the next one in the
! chain).  The last `insn_list' in the chain has a null pointer as second
! operand.  The significant thing about the chain is which insns appear
! in it (as first operands of `insn_list' expressions).  Their order is
! not significant.
  
   This list is originally set up by the flow analysis pass; it is a null
  pointer until then.  Flow only adds links for those data dependencies
--- 16633,16922 ----
  is always true.
  
   After delay slot scheduling, some of the insns in the chain might be
! 'sequence' expressions, which contain a vector of insns.  The value of
! 'NEXT_INSN' in all but the last of these insns is the next insn in the
! vector; the value of 'NEXT_INSN' of the last insn in the vector is the
! same as the value of 'NEXT_INSN' for the 'sequence' in which it is
! contained.  Similar rules apply for 'PREV_INSN'.
  
   This means that the above invariants are not necessarily true for insns
! inside 'sequence' expressions.  Specifically, if INSN is the first insn
! in a 'sequence', 'NEXT_INSN (PREV_INSN (INSN))' is the insn containing
! the 'sequence' expression, as is the value of 'PREV_INSN (NEXT_INSN
! (INSN))' if INSN is the last insn in the 'sequence' expression.  You can
! use these expressions to find the containing 'sequence' expression.
  
   Every insn has one of the following expression codes:
  
! 'insn'
!      The expression code 'insn' is used for instructions that do not
!      jump and do not do function calls.  'sequence' expressions are
!      always contained in insns with code 'insn' even if one of those
       insns should jump or do function calls.
  
!      Insns with code 'insn' have four additional fields beyond the three
       mandatory ones listed above.  These four are described in a table
       below.
  
! 'jump_insn'
!      The expression code 'jump_insn' is used for instructions that may
!      jump (or, more generally, may contain 'label_ref' expressions to
!      which 'pc' can be set in that instruction).  If there is an
       instruction to return from the current function, it is recorded as
!      a 'jump_insn'.
  
!      'jump_insn' insns have the same extra fields as 'insn' insns,
       accessed in the same way and in addition contain a field
!      'JUMP_LABEL' which is defined once jump optimization has completed.
  
       For simple conditional and unconditional jumps, this field contains
!      the 'code_label' to which this insn will (possibly conditionally)
!      branch.  In a more complex jump, 'JUMP_LABEL' records one of the
       labels that the insn refers to; other jump target labels are
!      recorded as 'REG_LABEL_TARGET' notes.  The exception is 'addr_vec'
!      and 'addr_diff_vec', where 'JUMP_LABEL' is 'NULL_RTX' and the only
       way to find the labels is to scan the entire body of the insn.
  
!      Return insns count as jumps, but their 'JUMP_LABEL' is 'RETURN' or
!      'SIMPLE_RETURN'.
  
! 'call_insn'
!      The expression code 'call_insn' is used for instructions that may
       do function calls.  It is important to distinguish these
       instructions because they imply that certain registers and memory
       locations may be altered unpredictably.
  
!      'call_insn' insns have the same extra fields as 'insn' insns,
       accessed in the same way and in addition contain a field
!      'CALL_INSN_FUNCTION_USAGE', which contains a list (chain of
!      'expr_list' expressions) containing 'use', 'clobber' and sometimes
!      'set' expressions that denote hard registers and 'mem's used or
       clobbered by the called function.
  
!      A 'mem' generally points to a stack slot in which arguments passed
       to the libcall by reference (*note TARGET_PASS_BY_REFERENCE:
       Register Arguments.) are stored.  If the argument is caller-copied
       (*note TARGET_CALLEE_COPIES: Register Arguments.), the stack slot
!      will be mentioned in 'clobber' and 'use' entries; if it's
!      callee-copied, only a 'use' will appear, and the 'mem' may point to
!      addresses that are not stack slots.
  
!      Registers occurring inside a 'clobber' in this list augment
!      registers specified in 'CALL_USED_REGISTERS' (*note Register
       Basics::).
  
!      If the list contains a 'set' involving two registers, it indicates
!      that the function returns one of its arguments.  Such a 'set' may
       look like a no-op if the same register holds the argument and the
       return value.
  
! 'code_label'
!      A 'code_label' insn represents a label that a jump insn can jump
       to.  It contains two special fields of data in addition to the
!      three standard ones.  'CODE_LABEL_NUMBER' is used to hold the
       "label number", a number that identifies this label uniquely among
       all the labels in the compilation (not just in the current
       function).  Ultimately, the label is represented in the assembler
!      output as an assembler label, usually of the form 'LN' where N is
       the label number.
  
!      When a 'code_label' appears in an RTL expression, it normally
!      appears within a 'label_ref' which represents the address of the
       label, as a number.
  
!      Besides as a 'code_label', a label can also be represented as a
!      'note' of type 'NOTE_INSN_DELETED_LABEL'.
  
!      The field 'LABEL_NUSES' is only defined once the jump optimization
       phase is completed.  It contains the number of times this label is
       referenced in the current function.
  
!      The field 'LABEL_KIND' differentiates four different types of
!      labels: 'LABEL_NORMAL', 'LABEL_STATIC_ENTRY', 'LABEL_GLOBAL_ENTRY',
!      and 'LABEL_WEAK_ENTRY'.  The only labels that do not have type
!      'LABEL_NORMAL' are "alternate entry points" to the current
!      function.  These may be static (visible only in the containing
!      translation unit), global (exposed to all translation units), or
!      weak (global, but can be overridden by another symbol with the same
!      name).
  
       Much of the compiler treats all four kinds of label identically.
       Some of it needs to know whether or not a label is an alternate
!      entry point; for this purpose, the macro 'LABEL_ALT_ENTRY_P' is
!      provided.  It is equivalent to testing whether 'LABEL_KIND (label)
       == LABEL_NORMAL'.  The only place that cares about the distinction
       between static, global, and weak alternate entry points, besides
       the front-end code that creates them, is the function
!      'output_alternate_entry_point', in 'final.c'.
  
!      To set the kind of a label, use the 'SET_LABEL_KIND' macro.
  
! 'jump_table_data'
!      A 'jump_table_data' insn is a placeholder for the jump-table data
!      of a 'casesi' or 'tablejump' insn.  They are placed after a
!      'tablejump_p' insn.  A 'jump_table_data' insn is not part o a basic
!      blockm but it is associated with the basic block that ends with the
!      'tablejump_p' insn.  The 'PATTERN' of a 'jump_table_data' is always
!      either an 'addr_vec' or an 'addr_diff_vec', and a 'jump_table_data'
!      insn is always preceded by a 'code_label'.  The 'tablejump_p' insn
!      refers to that 'code_label' via its 'JUMP_LABEL'.
  
! 'barrier'
       Barriers are placed in the instruction stream when control cannot
       flow past them.  They are placed after unconditional jump
!      instructions to indicate that the jumps are unconditional and after
!      calls to 'volatile' functions, which do not return (e.g., 'exit').
!      They contain no information beyond the three standard fields.
  
! 'note'
!      'note' insns are used to represent additional debugging and
       declarative information.  They contain two nonstandard fields, an
!      integer which is accessed with the macro 'NOTE_LINE_NUMBER' and a
!      string accessed with 'NOTE_SOURCE_FILE'.
  
!      If 'NOTE_LINE_NUMBER' is positive, the note represents the position
!      of a source line and 'NOTE_SOURCE_FILE' is the source file name
!      that the line came from.  These notes control generation of line
!      number data in the assembler output.
  
!      Otherwise, 'NOTE_LINE_NUMBER' is not really a line number but a
!      code with one of the following values (and 'NOTE_SOURCE_FILE' must
       contain a null pointer):
  
!      'NOTE_INSN_DELETED'
            Such a note is completely ignorable.  Some passes of the
            compiler delete insns by altering them into notes of this
            kind.
  
!      'NOTE_INSN_DELETED_LABEL'
!           This marks what used to be a 'code_label', but was not used
!           for other purposes than taking its address and was transformed
!           to mark that no code jumps to it.
  
!      'NOTE_INSN_BLOCK_BEG'
!      'NOTE_INSN_BLOCK_END'
            These types of notes indicate the position of the beginning
!           and end of a level of scoping of variable names.  They control
!           the output of debugging information.
  
!      'NOTE_INSN_EH_REGION_BEG'
!      'NOTE_INSN_EH_REGION_END'
            These types of notes indicate the position of the beginning
            and end of a level of scoping for exception handling.
!           'NOTE_EH_HANDLER' identifies which region is associated with
            these notes.
  
!      'NOTE_INSN_FUNCTION_BEG'
            Appears at the start of the function body, after the function
            prologue.
  
!      'NOTE_INSN_VAR_LOCATION'
            This note is used to generate variable location debugging
            information.  It indicates that the user variable in its
!           'VAR_LOCATION' operand is at the location given in the RTL
            expression, or holds a value that can be computed by
            evaluating the RTL expression from that static point in the
            program up to the next such note for the same user variable.
  
       These codes are printed symbolically when they appear in debugging
       dumps.
  
! 'debug_insn'
!      The expression code 'debug_insn' is used for pseudo-instructions
       that hold debugging information for variable tracking at
!      assignments (see '-fvar-tracking-assignments' option).  They are
!      the RTL representation of 'GIMPLE_DEBUG' statements (*note
!      GIMPLE_DEBUG::), with a 'VAR_LOCATION' operand that binds a user
!      variable tree to an RTL representation of the 'value' in the
!      corresponding statement.  A 'DEBUG_EXPR' in it stands for the value
!      bound to the corresponding 'DEBUG_EXPR_DECL'.
  
       Throughout optimization passes, binding information is kept in
       pseudo-instruction form, so that, unlike notes, it gets the same
       treatment and adjustments that regular instructions would.  It is
       the variable tracking pass that turns these pseudo-instructions
!      into var location notes, analyzing control flow, value equivalences
!      and changes to registers and memory referenced in value
!      expressions, propagating the values of debug temporaries and
       determining expressions that can be used to compute the value of
       each user variable at as many points (ranges, actually) in the
       program as possible.
  
!      Unlike 'NOTE_INSN_VAR_LOCATION', the value expression in an
!      'INSN_VAR_LOCATION' denotes a value at that specific point in the
       program, rather than an expression that can be evaluated at any
!      later point before an overriding 'VAR_LOCATION' is encountered.
!      E.g., if a user variable is bound to a 'REG' and then a subsequent
!      insn modifies the 'REG', the note location would keep mapping the
       user variable to the register across the insn, whereas the insn
       location would keep the variable bound to the value, so that the
       variable tracking pass would emit another location note for the
       variable at the point in which the register is modified.
  
!  The machine mode of an insn is normally 'VOIDmode', but some phases use
! the mode for various purposes.
  
   The common subexpression elimination pass sets the mode of an insn to
! 'QImode' when it is the first insn in a block that has already been
  processed.
  
   The second Haifa scheduling pass, for targets that can multiple issue,
! sets the mode of an insn to 'TImode' when it is believed that the
! instruction begins an issue group.  That is, when the instruction cannot
! issue simultaneously with the previous.  This may be relied on by later
! passes, in particular machine-dependent reorg.
  
!  Here is a table of the extra fields of 'insn', 'jump_insn' and
! 'call_insn' insns:
  
! 'PATTERN (I)'
       An expression for the side effect performed by this insn.  This
!      must be one of the following codes: 'set', 'call', 'use',
!      'clobber', 'return', 'simple_return', 'asm_input', 'asm_output',
!      'addr_vec', 'addr_diff_vec', 'trap_if', 'unspec',
!      'unspec_volatile', 'parallel', 'cond_exec', or 'sequence'.  If it
!      is a 'parallel', each element of the 'parallel' must be one these
!      codes, except that 'parallel' expressions cannot be nested and
!      'addr_vec' and 'addr_diff_vec' are not permitted inside a
!      'parallel' expression.
  
! 'INSN_CODE (I)'
       An integer that says which pattern in the machine description
       matches this insn, or -1 if the matching has not yet been
       attempted.
  
       Such matching is never attempted and this field remains -1 on an
!      insn whose pattern consists of a single 'use', 'clobber',
!      'asm_input', 'addr_vec' or 'addr_diff_vec' expression.
  
!      Matching is also never attempted on insns that result from an 'asm'
!      statement.  These contain at least one 'asm_operands' expression.
!      The function 'asm_noperands' returns a non-negative value for such
       insns.
  
!      In the debugging output, this field is printed as a number followed
!      by a symbolic representation that locates the pattern in the 'md'
!      file as some small positive or negative offset from a named
!      pattern.
  
! 'LOG_LINKS (I)'
!      A list (chain of 'insn_list' expressions) giving information about
       dependencies between instructions within a basic block.  Neither a
       jump nor a label may come between the related insns.  These are
       only used by the schedulers and by combine.  This is a deprecated
       data structure.  Def-use and use-def chains are now preferred.
  
! 'REG_NOTES (I)'
!      A list (chain of 'expr_list', 'insn_list' and 'int_list'
       expressions) giving miscellaneous information about the insn.  It
       is often information pertaining to the registers used in this insn.
  
!  The 'LOG_LINKS' field of an insn is a chain of 'insn_list' expressions.
! Each of these has two operands: the first is an insn, and the second is
! another 'insn_list' expression (the next one in the chain).  The last
! 'insn_list' in the chain has a null pointer as second operand.  The
! significant thing about the chain is which insns appear in it (as first
! operands of 'insn_list' expressions).  Their order is not significant.
  
   This list is originally set up by the flow analysis pass; it is a null
  pointer until then.  Flow only adds links for those data dependencies
*************** which can be used for instruction combin
*** 17091,17116 ****
  analysis pass adds a link to insns which store into registers values
  that are used for the first time in this insn.
  
!  The `REG_NOTES' field of an insn is a chain similar to the `LOG_LINKS'
! field but it includes `expr_list' and `int_list' expressions in
! addition to `insn_list' expressions.  There are several kinds of
! register notes, which are distinguished by the machine mode, which in a
! register note is really understood as being an `enum reg_note'.  The
! first operand OP of the note is data whose meaning depends on the kind
! of note.
  
!  The macro `REG_NOTE_KIND (X)' returns the kind of register note.  Its
! counterpart, the macro `PUT_REG_NOTE_KIND (X, NEWKIND)' sets the
  register note type of X to be NEWKIND.
  
   Register notes are of three classes: They may say something about an
  input to an insn, they may say something about an output of an insn, or
  they may create a linkage between two insns.  There are also a set of
! values that are only used in `LOG_LINKS'.
  
   These register notes annotate inputs to an insn:
  
! `REG_DEAD'
       The value in OP dies in this insn; that is to say, altering the
       value immediately after this insn would not affect the future
       behavior of the program.
--- 16924,16948 ----
  analysis pass adds a link to insns which store into registers values
  that are used for the first time in this insn.
  
!  The 'REG_NOTES' field of an insn is a chain similar to the 'LOG_LINKS'
! field but it includes 'expr_list' and 'int_list' expressions in addition
! to 'insn_list' expressions.  There are several kinds of register notes,
! which are distinguished by the machine mode, which in a register note is
! really understood as being an 'enum reg_note'.  The first operand OP of
! the note is data whose meaning depends on the kind of note.
  
!  The macro 'REG_NOTE_KIND (X)' returns the kind of register note.  Its
! counterpart, the macro 'PUT_REG_NOTE_KIND (X, NEWKIND)' sets the
  register note type of X to be NEWKIND.
  
   Register notes are of three classes: They may say something about an
  input to an insn, they may say something about an output of an insn, or
  they may create a linkage between two insns.  There are also a set of
! values that are only used in 'LOG_LINKS'.
  
   These register notes annotate inputs to an insn:
  
! 'REG_DEAD'
       The value in OP dies in this insn; that is to say, altering the
       value immediately after this insn would not affect the future
       behavior of the program.
*************** values that are only used in `LOG_LINKS'
*** 17119,17190 ****
       this insn since OP is not necessarily modified by this insn.
       Rather, no subsequent instruction uses the contents of OP.
  
! `REG_UNUSED'
       The register OP being set by this insn will not be used in a
!      subsequent insn.  This differs from a `REG_DEAD' note, which
       indicates that the value in an input will not be used subsequently.
       These two notes are independent; both may be present for the same
       register.
  
! `REG_INC'
!      The register OP is incremented (or decremented; at this level
!      there is no distinction) by an embedded side effect inside this
!      insn.  This means it appears in a `post_inc', `pre_inc',
!      `post_dec' or `pre_dec' expression.
  
! `REG_NONNEG'
!      The register OP is known to have a nonnegative value when this
!      insn is reached.  This is used so that decrement and branch until
!      zero instructions, such as the m68k dbra, can be matched.
  
!      The `REG_NONNEG' note is added to insns only if the machine
!      description has a `decrement_and_branch_until_zero' pattern.
  
! `REG_LABEL_OPERAND'
!      This insn uses OP, a `code_label' or a `note' of type
!      `NOTE_INSN_DELETED_LABEL', but is not a `jump_insn', or it is a
!      `jump_insn' that refers to the operand as an ordinary operand.
!      The label may still eventually be a jump target, but if so in an
       indirect jump in a subsequent insn.  The presence of this note
       allows jump optimization to be aware that OP is, in fact, being
       used, and flow optimization to build an accurate flow graph.
  
! `REG_LABEL_TARGET'
!      This insn is a `jump_insn' but not an `addr_vec' or
!      `addr_diff_vec'.  It uses OP, a `code_label' as a direct or
       indirect jump target.  Its purpose is similar to that of
!      `REG_LABEL_OPERAND'.  This note is only present if the insn has
       multiple targets; the last label in the insn (in the highest
!      numbered insn-field) goes into the `JUMP_LABEL' field and does not
!      have a `REG_LABEL_TARGET' note.  *Note JUMP_LABEL: Insns.
  
! `REG_CROSSING_JUMP'
       This insn is a branching instruction (either an unconditional jump
       or an indirect jump) which crosses between hot and cold sections,
       which could potentially be very far apart in the executable.  The
       presence of this note indicates to other optimizations that this
       branching instruction should not be "collapsed" into a simpler
!      branching construct.  It is used when the optimization to
!      partition basic blocks into hot and cold sections is turned on.
  
! `REG_SETJMP'
!      Appears attached to each `CALL_INSN' to `setjmp' or a related
       function.
  
   The following notes describe attributes of outputs of an insn:
  
! `REG_EQUIV'
! `REG_EQUAL'
       This note is only valid on an insn that sets only one register and
       indicates that that register will be equal to OP at run time; the
       scope of this equivalence differs between the two types of notes.
       The value which the insn explicitly copies into the register may
       look different from OP, but they will be equal at run time.  If the
!      output of the single `set' is a `strict_low_part' or
!      `zero_extract' expression, the note refers to the register that is
!      contained in its first operand.
  
!      For `REG_EQUIV', the register is equivalent to OP throughout the
       entire function, and could validly be replaced in all its
       occurrences by OP.  ("Validly" here refers to the data flow of the
       program; simple replacement may make some insns invalid.)  For
--- 16951,17022 ----
       this insn since OP is not necessarily modified by this insn.
       Rather, no subsequent instruction uses the contents of OP.
  
! 'REG_UNUSED'
       The register OP being set by this insn will not be used in a
!      subsequent insn.  This differs from a 'REG_DEAD' note, which
       indicates that the value in an input will not be used subsequently.
       These two notes are independent; both may be present for the same
       register.
  
! 'REG_INC'
!      The register OP is incremented (or decremented; at this level there
!      is no distinction) by an embedded side effect inside this insn.
!      This means it appears in a 'post_inc', 'pre_inc', 'post_dec' or
!      'pre_dec' expression.
  
! 'REG_NONNEG'
!      The register OP is known to have a nonnegative value when this insn
!      is reached.  This is used so that decrement and branch until zero
!      instructions, such as the m68k dbra, can be matched.
  
!      The 'REG_NONNEG' note is added to insns only if the machine
!      description has a 'decrement_and_branch_until_zero' pattern.
  
! 'REG_LABEL_OPERAND'
!      This insn uses OP, a 'code_label' or a 'note' of type
!      'NOTE_INSN_DELETED_LABEL', but is not a 'jump_insn', or it is a
!      'jump_insn' that refers to the operand as an ordinary operand.  The
!      label may still eventually be a jump target, but if so in an
       indirect jump in a subsequent insn.  The presence of this note
       allows jump optimization to be aware that OP is, in fact, being
       used, and flow optimization to build an accurate flow graph.
  
! 'REG_LABEL_TARGET'
!      This insn is a 'jump_insn' but not an 'addr_vec' or
!      'addr_diff_vec'.  It uses OP, a 'code_label' as a direct or
       indirect jump target.  Its purpose is similar to that of
!      'REG_LABEL_OPERAND'.  This note is only present if the insn has
       multiple targets; the last label in the insn (in the highest
!      numbered insn-field) goes into the 'JUMP_LABEL' field and does not
!      have a 'REG_LABEL_TARGET' note.  *Note JUMP_LABEL: Insns.
  
! 'REG_CROSSING_JUMP'
       This insn is a branching instruction (either an unconditional jump
       or an indirect jump) which crosses between hot and cold sections,
       which could potentially be very far apart in the executable.  The
       presence of this note indicates to other optimizations that this
       branching instruction should not be "collapsed" into a simpler
!      branching construct.  It is used when the optimization to partition
!      basic blocks into hot and cold sections is turned on.
  
! 'REG_SETJMP'
!      Appears attached to each 'CALL_INSN' to 'setjmp' or a related
       function.
  
   The following notes describe attributes of outputs of an insn:
  
! 'REG_EQUIV'
! 'REG_EQUAL'
       This note is only valid on an insn that sets only one register and
       indicates that that register will be equal to OP at run time; the
       scope of this equivalence differs between the two types of notes.
       The value which the insn explicitly copies into the register may
       look different from OP, but they will be equal at run time.  If the
!      output of the single 'set' is a 'strict_low_part' or 'zero_extract'
!      expression, the note refers to the register that is contained in
!      its first operand.
  
!      For 'REG_EQUIV', the register is equivalent to OP throughout the
       entire function, and could validly be replaced in all its
       occurrences by OP.  ("Validly" here refers to the data flow of the
       program; simple replacement may make some insns invalid.)  For
*************** values that are only used in `LOG_LINKS'
*** 17194,17216 ****
       When a parameter is copied into a pseudo-register at entry to a
       function, a note of this kind records that the register is
       equivalent to the stack slot where the parameter was passed.
!      Although in this case the register may be set by other insns, it
!      is still valid to replace the register by the stack slot
!      throughout the function.
  
!      A `REG_EQUIV' note is also used on an instruction which copies a
       register parameter into a pseudo-register at entry to a function,
       if there is a stack slot where that parameter could be stored.
       Although other insns may set the pseudo-register, it is valid for
       the compiler to replace the pseudo-register by stack slot
       throughout the function, provided the compiler ensures that the
!      stack slot is properly initialized by making the replacement in
!      the initial copy instruction as well.  This is used on machines
!      for which the calling convention allocates stack space for
!      register parameters.  See `REG_PARM_STACK_SPACE' in *note Stack
!      Arguments::.
  
!      In the case of `REG_EQUAL', the register that is set by this insn
       will be equal to OP at run time at the end of this insn but not
       necessarily elsewhere in the function.  In this case, OP is
       typically an arithmetic expression.  For example, when a sequence
--- 17026,17047 ----
       When a parameter is copied into a pseudo-register at entry to a
       function, a note of this kind records that the register is
       equivalent to the stack slot where the parameter was passed.
!      Although in this case the register may be set by other insns, it is
!      still valid to replace the register by the stack slot throughout
!      the function.
  
!      A 'REG_EQUIV' note is also used on an instruction which copies a
       register parameter into a pseudo-register at entry to a function,
       if there is a stack slot where that parameter could be stored.
       Although other insns may set the pseudo-register, it is valid for
       the compiler to replace the pseudo-register by stack slot
       throughout the function, provided the compiler ensures that the
!      stack slot is properly initialized by making the replacement in the
!      initial copy instruction as well.  This is used on machines for
!      which the calling convention allocates stack space for register
!      parameters.  See 'REG_PARM_STACK_SPACE' in *note Stack Arguments::.
  
!      In the case of 'REG_EQUAL', the register that is set by this insn
       will be equal to OP at run time at the end of this insn but not
       necessarily elsewhere in the function.  In this case, OP is
       typically an arithmetic expression.  For example, when a sequence
*************** values that are only used in `LOG_LINKS'
*** 17219,17305 ****
       or copies the final value.
  
       These two notes are used in different ways by the compiler passes.
!      `REG_EQUAL' is used by passes prior to register allocation (such as
       common subexpression elimination and loop optimization) to tell
!      them how to think of that value.  `REG_EQUIV' notes are used by
       register allocation to indicate that there is an available
!      substitute expression (either a constant or a `mem' expression for
!      the location of a parameter on the stack) that may be used in
!      place of a register if insufficient registers are available.
  
       Except for stack homes for parameters, which are indicated by a
!      `REG_EQUIV' note and are not useful to the early optimization
       passes and pseudo registers that are equivalent to a memory
       location throughout their entire life, which is not detected until
       later in the compilation, all equivalences are initially indicated
!      by an attached `REG_EQUAL' note.  In the early stages of register
!      allocation, a `REG_EQUAL' note is changed into a `REG_EQUIV' note
       if OP is a constant and the insn represents the only set of its
       destination register.
  
       Thus, compiler passes prior to register allocation need only check
!      for `REG_EQUAL' notes and passes subsequent to register allocation
!      need only check for `REG_EQUIV' notes.
  
   These notes describe linkages between insns.  They occur in pairs: one
  insn has one of a pair of notes that points to a second insn, which has
  the inverse note pointing back to the first insn.
  
! `REG_CC_SETTER'
! `REG_CC_USER'
!      On machines that use `cc0', the insns which set and use `cc0' set
!      and use `cc0' are adjacent.  However, when branch delay slot
       filling is done, this may no longer be true.  In this case a
!      `REG_CC_USER' note will be placed on the insn setting `cc0' to
!      point to the insn using `cc0' and a `REG_CC_SETTER' note will be
!      placed on the insn using `cc0' to point to the insn setting `cc0'.
  
!  These values are only used in the `LOG_LINKS' field, and indicate the
  type of dependency that each link represents.  Links which indicate a
  data dependence (a read after write dependence) do not use any code,
! they simply have mode `VOIDmode', and are printed without any
  descriptive text.
  
! `REG_DEP_TRUE'
       This indicates a true dependence (a read after write dependence).
  
! `REG_DEP_OUTPUT'
       This indicates an output dependence (a write after write
       dependence).
  
! `REG_DEP_ANTI'
       This indicates an anti dependence (a write after read dependence).
  
- 
   These notes describe information gathered from gcov profile data.  They
! are stored in the `REG_NOTES' field of an insn.
  
! `REG_BR_PROB'
       This is used to specify the ratio of branches to non-branches of a
       branch insn according to the profile data.  The note is represented
!      as an `int_list' expression whose integer value is between 0 and
!      REG_BR_PROB_BASE.  Larger values indicate a higher probability that
       the branch will be taken.
  
! `REG_BR_PRED'
       These notes are found in JUMP insns after delayed branch scheduling
       has taken place.  They indicate both the direction and the
       likelihood of the JUMP.  The format is a bitmask of ATTR_FLAG_*
       values.
  
! `REG_FRAME_RELATED_EXPR'
       This is used on an RTX_FRAME_RELATED_P insn wherein the attached
       expression is used in place of the actual insn pattern.  This is
       done in cases where the pattern is either complex or misleading.
  
!  For convenience, the machine mode in an `insn_list' or `expr_list' is
  printed using these symbolic codes in debugging dumps.
  
!  The only difference between the expression codes `insn_list' and
! `expr_list' is that the first operand of an `insn_list' is assumed to
! be an insn and is printed in debugging dumps as the insn's unique id;
! the first operand of an `expr_list' is printed in the ordinary way as
! an expression.
  
  
  File: gccint.info,  Node: Calls,  Next: Sharing,  Prev: Insns,  Up: RTL
--- 17050,17135 ----
       or copies the final value.
  
       These two notes are used in different ways by the compiler passes.
!      'REG_EQUAL' is used by passes prior to register allocation (such as
       common subexpression elimination and loop optimization) to tell
!      them how to think of that value.  'REG_EQUIV' notes are used by
       register allocation to indicate that there is an available
!      substitute expression (either a constant or a 'mem' expression for
!      the location of a parameter on the stack) that may be used in place
!      of a register if insufficient registers are available.
  
       Except for stack homes for parameters, which are indicated by a
!      'REG_EQUIV' note and are not useful to the early optimization
       passes and pseudo registers that are equivalent to a memory
       location throughout their entire life, which is not detected until
       later in the compilation, all equivalences are initially indicated
!      by an attached 'REG_EQUAL' note.  In the early stages of register
!      allocation, a 'REG_EQUAL' note is changed into a 'REG_EQUIV' note
       if OP is a constant and the insn represents the only set of its
       destination register.
  
       Thus, compiler passes prior to register allocation need only check
!      for 'REG_EQUAL' notes and passes subsequent to register allocation
!      need only check for 'REG_EQUIV' notes.
  
   These notes describe linkages between insns.  They occur in pairs: one
  insn has one of a pair of notes that points to a second insn, which has
  the inverse note pointing back to the first insn.
  
! 'REG_CC_SETTER'
! 'REG_CC_USER'
!      On machines that use 'cc0', the insns which set and use 'cc0' set
!      and use 'cc0' are adjacent.  However, when branch delay slot
       filling is done, this may no longer be true.  In this case a
!      'REG_CC_USER' note will be placed on the insn setting 'cc0' to
!      point to the insn using 'cc0' and a 'REG_CC_SETTER' note will be
!      placed on the insn using 'cc0' to point to the insn setting 'cc0'.
  
!  These values are only used in the 'LOG_LINKS' field, and indicate the
  type of dependency that each link represents.  Links which indicate a
  data dependence (a read after write dependence) do not use any code,
! they simply have mode 'VOIDmode', and are printed without any
  descriptive text.
  
! 'REG_DEP_TRUE'
       This indicates a true dependence (a read after write dependence).
  
! 'REG_DEP_OUTPUT'
       This indicates an output dependence (a write after write
       dependence).
  
! 'REG_DEP_ANTI'
       This indicates an anti dependence (a write after read dependence).
  
   These notes describe information gathered from gcov profile data.  They
! are stored in the 'REG_NOTES' field of an insn.
  
! 'REG_BR_PROB'
       This is used to specify the ratio of branches to non-branches of a
       branch insn according to the profile data.  The note is represented
!      as an 'int_list' expression whose integer value is between 0 and
!      REG_BR_PROB_BASE. Larger values indicate a higher probability that
       the branch will be taken.
  
! 'REG_BR_PRED'
       These notes are found in JUMP insns after delayed branch scheduling
       has taken place.  They indicate both the direction and the
       likelihood of the JUMP.  The format is a bitmask of ATTR_FLAG_*
       values.
  
! 'REG_FRAME_RELATED_EXPR'
       This is used on an RTX_FRAME_RELATED_P insn wherein the attached
       expression is used in place of the actual insn pattern.  This is
       done in cases where the pattern is either complex or misleading.
  
!  For convenience, the machine mode in an 'insn_list' or 'expr_list' is
  printed using these symbolic codes in debugging dumps.
  
!  The only difference between the expression codes 'insn_list' and
! 'expr_list' is that the first operand of an 'insn_list' is assumed to be
! an insn and is printed in debugging dumps as the insn's unique id; the
! first operand of an 'expr_list' is printed in the ordinary way as an
! expression.
  
  
  File: gccint.info,  Node: Calls,  Next: Sharing,  Prev: Insns,  Up: RTL
*************** File: gccint.info,  Node: Calls,  Next:
*** 17307,17330 ****
  13.20 RTL Representation of Function-Call Insns
  ===============================================
  
! Insns that call subroutines have the RTL expression code `call_insn'.
  These insns must satisfy special rules, and their bodies must use a
! special RTL expression code, `call'.
  
!  A `call' expression has two operands, as follows:
  
       (call (mem:FM ADDR) NBYTES)
  
  Here NBYTES is an operand that represents the number of bytes of
  argument data being passed to the subroutine, FM is a machine mode
! (which must equal as the definition of the `FUNCTION_MODE' macro in the
  machine description) and ADDR represents the address of the subroutine.
  
!  For a subroutine that returns no value, the `call' expression as shown
  above is the entire body of the insn, except that the insn might also
! contain `use' or `clobber' expressions.
  
!  For a subroutine that returns a value whose mode is not `BLKmode', the
  value is returned in a hard register.  If this register's number is R,
  then the body of the call insn looks like this:
  
--- 17137,17160 ----
  13.20 RTL Representation of Function-Call Insns
  ===============================================
  
! Insns that call subroutines have the RTL expression code 'call_insn'.
  These insns must satisfy special rules, and their bodies must use a
! special RTL expression code, 'call'.
  
!  A 'call' expression has two operands, as follows:
  
       (call (mem:FM ADDR) NBYTES)
  
  Here NBYTES is an operand that represents the number of bytes of
  argument data being passed to the subroutine, FM is a machine mode
! (which must equal as the definition of the 'FUNCTION_MODE' macro in the
  machine description) and ADDR represents the address of the subroutine.
  
!  For a subroutine that returns no value, the 'call' expression as shown
  above is the entire body of the insn, except that the insn might also
! contain 'use' or 'clobber' expressions.
  
!  For a subroutine that returns a value whose mode is not 'BLKmode', the
  value is returned in a hard register.  If this register's number is R,
  then the body of the call insn looks like this:
  
*************** then the body of the call insn looks lik
*** 17334,17363 ****
  This RTL expression makes it clear (to the optimizer passes) that the
  appropriate register receives a useful value in this insn.
  
!  When a subroutine returns a `BLKmode' value, it is handled by passing
  to the subroutine the address of a place to store the value.  So the
  call insn itself does not "return" any value, and it has the same RTL
  form as a call that returns nothing.
  
   On some machines, the call instruction itself clobbers some register,
! for example to contain the return address.  `call_insn' insns on these
! machines should have a body which is a `parallel' that contains both
! the `call' expression and `clobber' expressions that indicate which
  registers are destroyed.  Similarly, if the call instruction requires
  some register other than the stack pointer that is not explicitly
! mentioned in its RTL, a `use' subexpression should mention that
  register.
  
   Functions that are called are assumed to modify all registers listed in
! the configuration macro `CALL_USED_REGISTERS' (*note Register Basics::)
! and, with the exception of `const' functions and library calls, to
  modify all of memory.
  
!  Insns containing just `use' expressions directly precede the
! `call_insn' insn to indicate which registers contain inputs to the
  function.  Similarly, if registers other than those in
! `CALL_USED_REGISTERS' are clobbered by the called function, insns
! containing a single `clobber' follow immediately after the call to
  indicate which registers.
  
  
--- 17164,17193 ----
  This RTL expression makes it clear (to the optimizer passes) that the
  appropriate register receives a useful value in this insn.
  
!  When a subroutine returns a 'BLKmode' value, it is handled by passing
  to the subroutine the address of a place to store the value.  So the
  call insn itself does not "return" any value, and it has the same RTL
  form as a call that returns nothing.
  
   On some machines, the call instruction itself clobbers some register,
! for example to contain the return address.  'call_insn' insns on these
! machines should have a body which is a 'parallel' that contains both the
! 'call' expression and 'clobber' expressions that indicate which
  registers are destroyed.  Similarly, if the call instruction requires
  some register other than the stack pointer that is not explicitly
! mentioned in its RTL, a 'use' subexpression should mention that
  register.
  
   Functions that are called are assumed to modify all registers listed in
! the configuration macro 'CALL_USED_REGISTERS' (*note Register Basics::)
! and, with the exception of 'const' functions and library calls, to
  modify all of memory.
  
!  Insns containing just 'use' expressions directly precede the
! 'call_insn' insn to indicate which registers contain inputs to the
  function.  Similarly, if registers other than those in
! 'CALL_USED_REGISTERS' are clobbered by the called function, insns
! containing a single 'clobber' follow immediately after the call to
  indicate which registers.
  
  
*************** File: gccint.info,  Node: Sharing,  Next
*** 17367,17415 ****
  ===================================
  
  The compiler assumes that certain kinds of RTL expressions are unique;
! there do not exist two distinct objects representing the same value.
! In other cases, it makes an opposite assumption: that no RTL expression
  object of a certain kind appears in more than one place in the
  containing structure.
  
   These assumptions refer to a single function; except for the RTL
! objects that describe global variables and external functions, and a
! few standard objects such as small integer constants, no RTL objects
! are common to two functions.
  
!    * Each pseudo-register has only a single `reg' object to represent
       it, and therefore only a single machine mode.
  
!    * For any symbolic label, there is only one `symbol_ref' object
       referring to it.
  
!    * All `const_int' expressions with equal values are shared.
  
!    * There is only one `pc' expression.
  
!    * There is only one `cc0' expression.
  
!    * There is only one `const_double' expression with value 0 for each
       floating point mode.  Likewise for values 1 and 2.
  
!    * There is only one `const_vector' expression with value 0 for each
       vector mode, be it an integer or a double constant vector.
  
!    * No `label_ref' or `scratch' appears in more than one place in the
       RTL structure; in other words, it is safe to do a tree-walk of all
!      the insns in the function and assume that each time a `label_ref'
!      or `scratch' is seen it is distinct from all others that are seen.
  
!    * Only one `mem' object is normally created for each static variable
       or stack slot, so these objects are frequently shared in all the
       places they appear.  However, separate but equal objects for these
       variables are occasionally made.
  
!    * When a single `asm' statement has multiple output operands, a
!      distinct `asm_operands' expression is made for each output operand.
       However, these all share the vector which contains the sequence of
       input operands.  This sharing is used later on to test whether two
!      `asm_operands' expressions come from the same statement, so all
       optimizations must carefully preserve the sharing if they copy the
       vector at all.
  
--- 17197,17245 ----
  ===================================
  
  The compiler assumes that certain kinds of RTL expressions are unique;
! there do not exist two distinct objects representing the same value.  In
! other cases, it makes an opposite assumption: that no RTL expression
  object of a certain kind appears in more than one place in the
  containing structure.
  
   These assumptions refer to a single function; except for the RTL
! objects that describe global variables and external functions, and a few
! standard objects such as small integer constants, no RTL objects are
! common to two functions.
  
!    * Each pseudo-register has only a single 'reg' object to represent
       it, and therefore only a single machine mode.
  
!    * For any symbolic label, there is only one 'symbol_ref' object
       referring to it.
  
!    * All 'const_int' expressions with equal values are shared.
  
!    * There is only one 'pc' expression.
  
!    * There is only one 'cc0' expression.
  
!    * There is only one 'const_double' expression with value 0 for each
       floating point mode.  Likewise for values 1 and 2.
  
!    * There is only one 'const_vector' expression with value 0 for each
       vector mode, be it an integer or a double constant vector.
  
!    * No 'label_ref' or 'scratch' appears in more than one place in the
       RTL structure; in other words, it is safe to do a tree-walk of all
!      the insns in the function and assume that each time a 'label_ref'
!      or 'scratch' is seen it is distinct from all others that are seen.
  
!    * Only one 'mem' object is normally created for each static variable
       or stack slot, so these objects are frequently shared in all the
       places they appear.  However, separate but equal objects for these
       variables are occasionally made.
  
!    * When a single 'asm' statement has multiple output operands, a
!      distinct 'asm_operands' expression is made for each output operand.
       However, these all share the vector which contains the sequence of
       input operands.  This sharing is used later on to test whether two
!      'asm_operands' expressions come from the same statement, so all
       optimizations must carefully preserve the sharing if they copy the
       vector at all.
  
*************** are common to two functions.
*** 17420,17433 ****
  
     * During initial RTL generation, shared structure is freely
       introduced.  After all the RTL for a function has been generated,
!      all shared structure is copied by `unshare_all_rtl' in
!      `emit-rtl.c', after which the above rules are guaranteed to be
       followed.
  
     * During the combiner pass, shared structure within an insn can exist
       temporarily.  However, the shared structure is copied before the
       combiner is finished with the insn.  This is done by calling
!      `copy_rtx_if_shared', which is a subroutine of `unshare_all_rtl'.
  
  
  File: gccint.info,  Node: Reading RTL,  Prev: Sharing,  Up: RTL
--- 17250,17263 ----
  
     * During initial RTL generation, shared structure is freely
       introduced.  After all the RTL for a function has been generated,
!      all shared structure is copied by 'unshare_all_rtl' in
!      'emit-rtl.c', after which the above rules are guaranteed to be
       followed.
  
     * During the combiner pass, shared structure within an insn can exist
       temporarily.  However, the shared structure is copied before the
       combiner is finished with the insn.  This is done by calling
!      'copy_rtx_if_shared', which is a subroutine of 'unshare_all_rtl'.
  
  
  File: gccint.info,  Node: Reading RTL,  Prev: Sharing,  Up: RTL
*************** File: gccint.info,  Node: Reading RTL,
*** 17435,17445 ****
  13.22 Reading RTL
  =================
  
! To read an RTL object from a file, call `read_rtx'.  It takes one
  argument, a stdio stream, and returns a single RTL object.  This routine
! is defined in `read-rtl.c'.  It is not available in the compiler
! itself, only the various programs that generate the compiler back end
! from the machine description.
  
   People frequently have the idea of using RTL stored as text in a file
  as an interface between a language front end and the bulk of GCC.  This
--- 17265,17275 ----
  13.22 Reading RTL
  =================
  
! To read an RTL object from a file, call 'read_rtx'.  It takes one
  argument, a stdio stream, and returns a single RTL object.  This routine
! is defined in 'read-rtl.c'.  It is not available in the compiler itself,
! only the various programs that generate the compiler back end from the
! machine description.
  
   People frequently have the idea of using RTL stored as text in a file
  as an interface between a language front end and the bulk of GCC.  This
*************** idea is not feasible.
*** 17449,17458 ****
  program is very dependent on the particular target machine.  And the RTL
  does not contain all the information about the program.
  
!  The proper way to interface GCC to a new language front end is with
! the "tree" data structure, described in the files `tree.h' and
! `tree.def'.  The documentation for this structure (*note GENERIC::) is
! incomplete.
  
  
  File: gccint.info,  Node: Control Flow,  Next: Loop Analysis and Representation,  Prev: RTL,  Up: Top
--- 17279,17287 ----
  program is very dependent on the particular target machine.  And the RTL
  does not contain all the information about the program.
  
!  The proper way to interface GCC to a new language front end is with the
! "tree" data structure, described in the files 'tree.h' and 'tree.def'.
! The documentation for this structure (*note GENERIC::) is incomplete.
  
  
  File: gccint.info,  Node: Control Flow,  Next: Loop Analysis and Representation,  Prev: RTL,  Up: Top
*************** File: gccint.info,  Node: Control Flow,
*** 17461,17481 ****
  *********************
  
  A control flow graph (CFG) is a data structure built on top of the
! intermediate code representation (the RTL or `GIMPLE' instruction
  stream) abstracting the control flow behavior of a function that is
  being compiled.  The CFG is a directed graph where the vertices
  represent basic blocks and edges represent possible transfer of control
  flow from one basic block to another.  The data structures used to
! represent the control flow graph are defined in `basic-block.h'.
  
!  In GCC, the representation of control flow is maintained throughout
! the compilation process, from constructing the CFG early in
! `pass_build_cfg' to `pass_free_cfg' (see `passes.def').  The CFG takes
! various different modes and may undergo extensive manipulations, but
! the graph is always valid between its construction and its release.
! This way, transfer of information such as data flow, a measured
! profile, or the loop tree, can be propagated through the passes
! pipeline, and even from `GIMPLE' to `RTL'.
  
   Often the CFG may be better viewed as integral part of instruction
  chain, than structure built on the top of it.  Updating the compiler's
--- 17290,17310 ----
  *********************
  
  A control flow graph (CFG) is a data structure built on top of the
! intermediate code representation (the RTL or 'GIMPLE' instruction
  stream) abstracting the control flow behavior of a function that is
  being compiled.  The CFG is a directed graph where the vertices
  represent basic blocks and edges represent possible transfer of control
  flow from one basic block to another.  The data structures used to
! represent the control flow graph are defined in 'basic-block.h'.
  
!  In GCC, the representation of control flow is maintained throughout the
! compilation process, from constructing the CFG early in 'pass_build_cfg'
! to 'pass_free_cfg' (see 'passes.def').  The CFG takes various different
! modes and may undergo extensive manipulations, but the graph is always
! valid between its construction and its release.  This way, transfer of
! information such as data flow, a measured profile, or the loop tree, can
! be propagated through the passes pipeline, and even from 'GIMPLE' to
! 'RTL'.
  
   Often the CFG may be better viewed as integral part of instruction
  chain, than structure built on the top of it.  Updating the compiler's
*************** File: gccint.info,  Node: Basic Blocks,
*** 17497,17546 ****
  =================
  
  A basic block is a straight-line sequence of code with only one entry
! point and only one exit.  In GCC, basic blocks are represented using
! the `basic_block' data type.
  
   Special basic blocks represent possible entry and exit points of a
! function.  These blocks are called `ENTRY_BLOCK_PTR' and
! `EXIT_BLOCK_PTR'.  These blocks do not contain any code.
  
!  The `BASIC_BLOCK' array contains all basic blocks in an unspecified
! order.  Each `basic_block' structure has a field that holds a unique
! integer identifier `index' that is the index of the block in the
! `BASIC_BLOCK' array.  The total number of basic blocks in the function
! is `n_basic_blocks'.  Both the basic block indices and the total number
  of basic blocks may vary during the compilation process, as passes
! reorder, create, duplicate, and destroy basic blocks.  The index for
! any block should never be greater than `last_basic_block'.  The indices
! 0 and 1 are special codes reserved for `ENTRY_BLOCK' and `EXIT_BLOCK',
! the indices of `ENTRY_BLOCK_PTR' and `EXIT_BLOCK_PTR'.
  
!  Two pointer members of the `basic_block' structure are the pointers
! `next_bb' and `prev_bb'.  These are used to keep doubly linked chain of
  basic blocks in the same order as the underlying instruction stream.
  The chain of basic blocks is updated transparently by the provided API
! for manipulating the CFG.  The macro `FOR_EACH_BB' can be used to visit
! all the basic blocks in lexicographical order, except `ENTRY_BLOCK' and
! `EXIT_BLOCK'.  The macro `FOR_ALL_BB' also visits all basic blocks in
! lexicographical order, including `ENTRY_BLOCK' and `EXIT_BLOCK'.
  
!  The functions `post_order_compute' and `inverted_post_order_compute'
! can be used to compute topological orders of the CFG.  The orders are
! stored as vectors of basic block indices.  The `BASIC_BLOCK' array can
  be used to iterate each basic block by index.  Dominator traversals are
! also possible using `walk_dominator_tree'.  Given two basic blocks A
! and B, block A dominates block B if A is _always_ executed before B.
  
!  Each `basic_block' also contains pointers to the first instruction
! (the "head") and the last instruction (the "tail") or "end" of the
  instruction stream contained in a basic block.  In fact, since the
! `basic_block' data type is used to represent blocks in both major
! intermediate representations of GCC (`GIMPLE' and RTL), there are
  pointers to the head and end of a basic block for both representations,
! stored in intermediate representation specific data in the `il' field
! of `struct basic_block_def'.
  
!  For RTL, these pointers are `BB_HEAD' and `BB_END'.
  
   In the RTL representation of a function, the instruction stream
  contains not only the "real" instructions, but also "notes" or "insn
--- 17326,17375 ----
  =================
  
  A basic block is a straight-line sequence of code with only one entry
! point and only one exit.  In GCC, basic blocks are represented using the
! 'basic_block' data type.
  
   Special basic blocks represent possible entry and exit points of a
! function.  These blocks are called 'ENTRY_BLOCK_PTR' and
! 'EXIT_BLOCK_PTR'.  These blocks do not contain any code.
  
!  The 'BASIC_BLOCK' array contains all basic blocks in an unspecified
! order.  Each 'basic_block' structure has a field that holds a unique
! integer identifier 'index' that is the index of the block in the
! 'BASIC_BLOCK' array.  The total number of basic blocks in the function
! is 'n_basic_blocks'.  Both the basic block indices and the total number
  of basic blocks may vary during the compilation process, as passes
! reorder, create, duplicate, and destroy basic blocks.  The index for any
! block should never be greater than 'last_basic_block'.  The indices 0
! and 1 are special codes reserved for 'ENTRY_BLOCK' and 'EXIT_BLOCK', the
! indices of 'ENTRY_BLOCK_PTR' and 'EXIT_BLOCK_PTR'.
  
!  Two pointer members of the 'basic_block' structure are the pointers
! 'next_bb' and 'prev_bb'.  These are used to keep doubly linked chain of
  basic blocks in the same order as the underlying instruction stream.
  The chain of basic blocks is updated transparently by the provided API
! for manipulating the CFG.  The macro 'FOR_EACH_BB' can be used to visit
! all the basic blocks in lexicographical order, except 'ENTRY_BLOCK' and
! 'EXIT_BLOCK'.  The macro 'FOR_ALL_BB' also visits all basic blocks in
! lexicographical order, including 'ENTRY_BLOCK' and 'EXIT_BLOCK'.
  
!  The functions 'post_order_compute' and 'inverted_post_order_compute'
! can be used to compute topological orders of the CFG. The orders are
! stored as vectors of basic block indices.  The 'BASIC_BLOCK' array can
  be used to iterate each basic block by index.  Dominator traversals are
! also possible using 'walk_dominator_tree'.  Given two basic blocks A and
! B, block A dominates block B if A is _always_ executed before B.
  
!  Each 'basic_block' also contains pointers to the first instruction (the
! "head") and the last instruction (the "tail") or "end" of the
  instruction stream contained in a basic block.  In fact, since the
! 'basic_block' data type is used to represent blocks in both major
! intermediate representations of GCC ('GIMPLE' and RTL), there are
  pointers to the head and end of a basic block for both representations,
! stored in intermediate representation specific data in the 'il' field of
! 'struct basic_block_def'.
  
!  For RTL, these pointers are 'BB_HEAD' and 'BB_END'.
  
   In the RTL representation of a function, the instruction stream
  contains not only the "real" instructions, but also "notes" or "insn
*************** notes" (to distinguish them from "reg no
*** 17548,17584 ****
  or duplicates the basic blocks needs to take care of updating of these
  notes.  Many of these notes expect that the instruction stream consists
  of linear regions, so updating can sometimes be tedious.  All types of
! insn notes are defined in `insn-notes.def'.
  
   In the RTL function representation, the instructions contained in a
! basic block always follow a `NOTE_INSN_BASIC_BLOCK', but zero or more
! `CODE_LABEL' nodes can precede the block note.  A basic block ends with
  a control flow instruction or with the last instruction before the next
! `CODE_LABEL' or `NOTE_INSN_BASIC_BLOCK'.  By definition, a `CODE_LABEL'
  cannot appear in the middle of the instruction stream of a basic block.
  
   In addition to notes, the jump table vectors are also represented as
  "pseudo-instructions" inside the insn stream.  These vectors never
  appear in the basic block and should always be placed just after the
! table jump instructions referencing them.  After removing the
! table-jump it is often difficult to eliminate the code computing the
! address and referencing the vector, so cleaning up these vectors is
! postponed until after liveness analysis.   Thus the jump table vectors
! may appear in the insn stream unreferenced and without any purpose.
! Before any edge is made "fall-thru", the existence of such construct in
! the way needs to be checked by calling `can_fallthru' function.
  
!  For the `GIMPLE' representation, the PHI nodes and statements
! contained in a basic block are in a `gimple_seq' pointed to by the
! basic block intermediate language specific pointers.  Abstract
! containers and iterators are used to access the PHI nodes and
! statements in a basic blocks.  These iterators are called "GIMPLE
! statement iterators" (GSIs).  Grep for `^gsi' in the various `gimple-*'
! and `tree-*' files.  There is a `gimple_stmt_iterator' type for
! iterating over all kinds of statement, and a `gphi_iterator' subclass
! for iterating over PHI nodes.  The following snippet will pretty-print
! all PHI nodes the statements of the current function in the GIMPLE
! representation.
  
       basic_block bb;
  
--- 17377,17412 ----
  or duplicates the basic blocks needs to take care of updating of these
  notes.  Many of these notes expect that the instruction stream consists
  of linear regions, so updating can sometimes be tedious.  All types of
! insn notes are defined in 'insn-notes.def'.
  
   In the RTL function representation, the instructions contained in a
! basic block always follow a 'NOTE_INSN_BASIC_BLOCK', but zero or more
! 'CODE_LABEL' nodes can precede the block note.  A basic block ends with
  a control flow instruction or with the last instruction before the next
! 'CODE_LABEL' or 'NOTE_INSN_BASIC_BLOCK'.  By definition, a 'CODE_LABEL'
  cannot appear in the middle of the instruction stream of a basic block.
  
   In addition to notes, the jump table vectors are also represented as
  "pseudo-instructions" inside the insn stream.  These vectors never
  appear in the basic block and should always be placed just after the
! table jump instructions referencing them.  After removing the table-jump
! it is often difficult to eliminate the code computing the address and
! referencing the vector, so cleaning up these vectors is postponed until
! after liveness analysis.  Thus the jump table vectors may appear in the
! insn stream unreferenced and without any purpose.  Before any edge is
! made "fall-thru", the existence of such construct in the way needs to be
! checked by calling 'can_fallthru' function.
  
!  For the 'GIMPLE' representation, the PHI nodes and statements contained
! in a basic block are in a 'gimple_seq' pointed to by the basic block
! intermediate language specific pointers.  Abstract containers and
! iterators are used to access the PHI nodes and statements in a basic
! blocks.  These iterators are called "GIMPLE statement iterators" (GSIs).
! Grep for '^gsi' in the various 'gimple-*' and 'tree-*' files.  There is
! a 'gimple_stmt_iterator' type for iterating over all kinds of statement,
! and a 'gphi_iterator' subclass for iterating over PHI nodes.  The
! following snippet will pretty-print all PHI nodes the statements of the
! current function in the GIMPLE representation.
  
       basic_block bb;
  
*************** File: gccint.info,  Node: Edges,  Next:
*** 17608,17660 ****
  Edges represent possible control flow transfers from the end of some
  basic block A to the head of another basic block B.  We say that A is a
  predecessor of B, and B is a successor of A.  Edges are represented in
! GCC with the `edge' data type.  Each `edge' acts as a link between two
! basic blocks: The `src' member of an edge points to the predecessor
! basic block of the `dest' basic block.  The members `preds' and `succs'
! of the `basic_block' data type point to type-safe vectors of edges to
  the predecessors and successors of the block.
  
   When walking the edges in an edge vector, "edge iterators" should be
! used.  Edge iterators are constructed using the `edge_iterator' data
  structure and several methods are available to operate on them:
  
! `ei_start'
!      This function initializes an `edge_iterator' that points to the
       first edge in a vector of edges.
  
! `ei_last'
!      This function initializes an `edge_iterator' that points to the
       last edge in a vector of edges.
  
! `ei_end_p'
!      This predicate is `true' if an `edge_iterator' represents the last
       edge in an edge vector.
  
! `ei_one_before_end_p'
!      This predicate is `true' if an `edge_iterator' represents the
       second last edge in an edge vector.
  
! `ei_next'
!      This function takes a pointer to an `edge_iterator' and makes it
       point to the next edge in the sequence.
  
! `ei_prev'
!      This function takes a pointer to an `edge_iterator' and makes it
       point to the previous edge in the sequence.
  
! `ei_edge'
!      This function returns the `edge' currently pointed to by an
!      `edge_iterator'.
  
! `ei_safe_safe'
!      This function returns the `edge' currently pointed to by an
!      `edge_iterator', but returns `NULL' if the iterator is pointing at
       the end of the sequence.  This function has been provided for
!      existing code makes the assumption that a `NULL' edge indicates
!      the end of the sequence.
! 
  
!  The convenience macro `FOR_EACH_EDGE' can be used to visit all of the
  edges in a sequence of predecessor or successor edges.  It must not be
  used when an element might be removed during the traversal, otherwise
  elements will be missed.  Here is an example of how to use the macro:
--- 17436,17487 ----
  Edges represent possible control flow transfers from the end of some
  basic block A to the head of another basic block B.  We say that A is a
  predecessor of B, and B is a successor of A.  Edges are represented in
! GCC with the 'edge' data type.  Each 'edge' acts as a link between two
! basic blocks: The 'src' member of an edge points to the predecessor
! basic block of the 'dest' basic block.  The members 'preds' and 'succs'
! of the 'basic_block' data type point to type-safe vectors of edges to
  the predecessors and successors of the block.
  
   When walking the edges in an edge vector, "edge iterators" should be
! used.  Edge iterators are constructed using the 'edge_iterator' data
  structure and several methods are available to operate on them:
  
! 'ei_start'
!      This function initializes an 'edge_iterator' that points to the
       first edge in a vector of edges.
  
! 'ei_last'
!      This function initializes an 'edge_iterator' that points to the
       last edge in a vector of edges.
  
! 'ei_end_p'
!      This predicate is 'true' if an 'edge_iterator' represents the last
       edge in an edge vector.
  
! 'ei_one_before_end_p'
!      This predicate is 'true' if an 'edge_iterator' represents the
       second last edge in an edge vector.
  
! 'ei_next'
!      This function takes a pointer to an 'edge_iterator' and makes it
       point to the next edge in the sequence.
  
! 'ei_prev'
!      This function takes a pointer to an 'edge_iterator' and makes it
       point to the previous edge in the sequence.
  
! 'ei_edge'
!      This function returns the 'edge' currently pointed to by an
!      'edge_iterator'.
  
! 'ei_safe_safe'
!      This function returns the 'edge' currently pointed to by an
!      'edge_iterator', but returns 'NULL' if the iterator is pointing at
       the end of the sequence.  This function has been provided for
!      existing code makes the assumption that a 'NULL' edge indicates the
!      end of the sequence.
  
!  The convenience macro 'FOR_EACH_EDGE' can be used to visit all of the
  edges in a sequence of predecessor or successor edges.  It must not be
  used when an element might be removed during the traversal, otherwise
  elements will be missed.  Here is an example of how to use the macro:
*************** elements will be missed.  Here is an exa
*** 17670,17681 ****
  
   There are various reasons why control flow may transfer from one block
  to another.  One possibility is that some instruction, for example a
! `CODE_LABEL', in a linearized instruction stream just always starts a
  new basic block.  In this case a "fall-thru" edge links the basic block
! to the first following basic block.  But there are several other
! reasons why edges may be created.  The `flags' field of the `edge' data
! type is used to store information about the type of edge we are dealing
! with.  Each edge is of one of the following types:
  
  _jump_
       No type flags are set for edges corresponding to jump instructions.
--- 17497,17508 ----
  
   There are various reasons why control flow may transfer from one block
  to another.  One possibility is that some instruction, for example a
! 'CODE_LABEL', in a linearized instruction stream just always starts a
  new basic block.  In this case a "fall-thru" edge links the basic block
! to the first following basic block.  But there are several other reasons
! why edges may be created.  The 'flags' field of the 'edge' data type is
! used to store information about the type of edge we are dealing with.
! Each edge is of one of the following types:
  
  _jump_
       No type flags are set for edges corresponding to jump instructions.
*************** _jump_
*** 17687,17698 ****
  _fall-thru_
       Fall-thru edges are present in case where the basic block may
       continue execution to the following one without branching.  These
!      edges have the `EDGE_FALLTHRU' flag set.  Unlike other types of
       edges, these edges must come into the basic block immediately
       following in the instruction stream.  The function
!      `force_nonfallthru' is available to insert an unconditional jump
!      in the case that redirection is needed.  Note that this may
!      require creation of a new basic block.
  
  _exception handling_
       Exception handling edges represent possible control transfers from
--- 17514,17525 ----
  _fall-thru_
       Fall-thru edges are present in case where the basic block may
       continue execution to the following one without branching.  These
!      edges have the 'EDGE_FALLTHRU' flag set.  Unlike other types of
       edges, these edges must come into the basic block immediately
       following in the instruction stream.  The function
!      'force_nonfallthru' is available to insert an unconditional jump in
!      the case that redirection is needed.  Note that this may require
!      creation of a new basic block.
  
  _exception handling_
       Exception handling edges represent possible control transfers from
*************** _exception handling_
*** 17701,17734 ****
       Java and Ada, exceptions like division by zero or segmentation
       fault are defined and thus each instruction possibly throwing this
       kind of exception needs to be handled as control flow instruction.
!      Exception edges have the `EDGE_ABNORMAL' and `EDGE_EH' flags set.
  
       When updating the instruction stream it is easy to change possibly
       trapping instruction to non-trapping, by simply removing the
       exception edge.  The opposite conversion is difficult, but should
       not happen anyway.  The edges can be eliminated via
!      `purge_dead_edges' call.
  
       In the RTL representation, the destination of an exception edge is
!      specified by `REG_EH_REGION' note attached to the insn.  In case
!      of a trapping call the `EDGE_ABNORMAL_CALL' flag is set too.  In
!      the `GIMPLE' representation, this extra flag is not set.
  
!      In the RTL representation, the predicate `may_trap_p' may be used
       to check whether instruction still may trap or not.  For the tree
!      representation, the `tree_could_trap_p' predicate is available,
!      but this predicate only checks for possible memory traps, as in
       dereferencing an invalid pointer location.
  
  _sibling calls_
       Sibling calls or tail calls terminate the function in a
       non-standard way and thus an edge to the exit must be present.
!      `EDGE_SIBCALL' and `EDGE_ABNORMAL' are set in such case.  These
       edges only exist in the RTL representation.
  
  _computed jumps_
       Computed jumps contain edges to all labels in the function
!      referenced from the code.  All those edges have `EDGE_ABNORMAL'
       flag set.  The edges used to represent computed jumps often cause
       compile time performance problems, since functions consisting of
       many taken labels and many computed jumps may have _very_ dense
--- 17528,17561 ----
       Java and Ada, exceptions like division by zero or segmentation
       fault are defined and thus each instruction possibly throwing this
       kind of exception needs to be handled as control flow instruction.
!      Exception edges have the 'EDGE_ABNORMAL' and 'EDGE_EH' flags set.
  
       When updating the instruction stream it is easy to change possibly
       trapping instruction to non-trapping, by simply removing the
       exception edge.  The opposite conversion is difficult, but should
       not happen anyway.  The edges can be eliminated via
!      'purge_dead_edges' call.
  
       In the RTL representation, the destination of an exception edge is
!      specified by 'REG_EH_REGION' note attached to the insn.  In case of
!      a trapping call the 'EDGE_ABNORMAL_CALL' flag is set too.  In the
!      'GIMPLE' representation, this extra flag is not set.
  
!      In the RTL representation, the predicate 'may_trap_p' may be used
       to check whether instruction still may trap or not.  For the tree
!      representation, the 'tree_could_trap_p' predicate is available, but
!      this predicate only checks for possible memory traps, as in
       dereferencing an invalid pointer location.
  
  _sibling calls_
       Sibling calls or tail calls terminate the function in a
       non-standard way and thus an edge to the exit must be present.
!      'EDGE_SIBCALL' and 'EDGE_ABNORMAL' are set in such case.  These
       edges only exist in the RTL representation.
  
  _computed jumps_
       Computed jumps contain edges to all labels in the function
!      referenced from the code.  All those edges have 'EDGE_ABNORMAL'
       flag set.  The edges used to represent computed jumps often cause
       compile time performance problems, since functions consisting of
       many taken labels and many computed jumps may have _very_ dense
*************** _computed jumps_
*** 17765,17792 ****
       has a runtime cost in there resulting code: An extra jump.
       Therefore, the computed jumps are un-factored in the later passes
       of the compiler (in the pass called
!      `pass_duplicate_computed_gotos').  Be aware of that when you work
       on passes in that area.  There have been numerous examples already
       where the compile time for code with unfactored computed jumps
       caused some serious headaches.
  
  _nonlocal goto handlers_
!      GCC allows nested functions to return into caller using a `goto'
!      to a label passed to as an argument to the callee.  The labels
!      passed to nested functions contain special code to cleanup after
!      function call.  Such sections of code are referred to as "nonlocal
!      goto receivers".  If a function contains such nonlocal goto
!      receivers, an edge from the call to the label is created with the
!      `EDGE_ABNORMAL' and `EDGE_ABNORMAL_CALL' flags set.
  
  _function entry points_
       By definition, execution of function starts at basic block 0, so
!      there is always an edge from the `ENTRY_BLOCK_PTR' to basic block
!      0.  There is no `GIMPLE' representation for alternate entry points
       at this moment.  In RTL, alternate entry points are specified by
!      `CODE_LABEL' with `LABEL_ALTERNATE_NAME' defined.  This feature is
!      currently used for multiple entry point prologues and is limited
!      to post-reload passes only.  This can be used by back-ends to emit
       alternate prologues for functions called from different contexts.
       In future full support for multiple entry functions defined by
       Fortran 90 needs to be implemented.
--- 17592,17619 ----
       has a runtime cost in there resulting code: An extra jump.
       Therefore, the computed jumps are un-factored in the later passes
       of the compiler (in the pass called
!      'pass_duplicate_computed_gotos').  Be aware of that when you work
       on passes in that area.  There have been numerous examples already
       where the compile time for code with unfactored computed jumps
       caused some serious headaches.
  
  _nonlocal goto handlers_
!      GCC allows nested functions to return into caller using a 'goto' to
!      a label passed to as an argument to the callee.  The labels passed
!      to nested functions contain special code to cleanup after function
!      call.  Such sections of code are referred to as "nonlocal goto
!      receivers".  If a function contains such nonlocal goto receivers,
!      an edge from the call to the label is created with the
!      'EDGE_ABNORMAL' and 'EDGE_ABNORMAL_CALL' flags set.
  
  _function entry points_
       By definition, execution of function starts at basic block 0, so
!      there is always an edge from the 'ENTRY_BLOCK_PTR' to basic block
!      0.  There is no 'GIMPLE' representation for alternate entry points
       at this moment.  In RTL, alternate entry points are specified by
!      'CODE_LABEL' with 'LABEL_ALTERNATE_NAME' defined.  This feature is
!      currently used for multiple entry point prologues and is limited to
!      post-reload passes only.  This can be used by back-ends to emit
       alternate prologues for functions called from different contexts.
       In future full support for multiple entry functions defined by
       Fortran 90 needs to be implemented.
*************** _function entry points_
*** 17794,17804 ****
  _function exits_
       In the pre-reload representation a function terminates after the
       last instruction in the insn chain and no explicit return
!      instructions are used.  This corresponds to the fall-thru edge
!      into exit block.  After reload, optimal RTL epilogues are used
!      that use explicit (conditional) return instructions that are
!      represented by edges with no flags set.
! 
  
  
  File: gccint.info,  Node: Profile information,  Next: Maintaining the CFG,  Prev: Edges,  Up: Control Flow
--- 17621,17630 ----
  _function exits_
       In the pre-reload representation a function terminates after the
       last instruction in the insn chain and no explicit return
!      instructions are used.  This corresponds to the fall-thru edge into
!      exit block.  After reload, optimal RTL epilogues are used that use
!      explicit (conditional) return instructions that are represented by
!      edges with no flags set.
  
  
  File: gccint.info,  Node: Profile information,  Next: Maintaining the CFG,  Prev: Edges,  Up: Control Flow
*************** instrumentation, executing it on a train
*** 17819,17850 ****
  executions of basic blocks and edges back to the compiler while
  re-compiling the program to produce the final executable.  This method
  provides very accurate information about where a program spends most of
! its time on the train run.  Whether it matches the average run of
! course depends on the choice of train data set, but several studies
! have shown that the behavior of a program usually changes just
! marginally over different data sets.
  
   When profile feedback is not available, the compiler may be asked to
  attempt to predict the behavior of each branch in the program using a
! set of heuristics (see `predict.def' for details) and compute estimated
  frequencies of each basic block by propagating the probabilities over
  the graph.
  
!  Each `basic_block' contains two integer fields to represent profile
! information: `frequency' and `count'.  The `frequency' is an estimation
  how often is basic block executed within a function.  It is represented
! as an integer scaled in the range from 0 to `BB_FREQ_BASE'.  The most
  frequently executed basic block in function is initially set to
! `BB_FREQ_BASE' and the rest of frequencies are scaled accordingly.
  During optimization, the frequency of the most frequent basic block can
  both decrease (for instance by loop unrolling) or grow (for instance by
  cross-jumping optimization), so scaling sometimes has to be performed
  multiple times.
  
!  The `count' contains hard-counted numbers of execution measured during
  training runs and is nonzero only when profile feedback is available.
  This value is represented as the host's widest integer (typically a 64
! bit integer) of the special type `gcov_type'.
  
   Most optimization passes can use only the frequency information of a
  basic block, but a few passes may want to know hard execution counts.
--- 17645,17676 ----
  executions of basic blocks and edges back to the compiler while
  re-compiling the program to produce the final executable.  This method
  provides very accurate information about where a program spends most of
! its time on the train run.  Whether it matches the average run of course
! depends on the choice of train data set, but several studies have shown
! that the behavior of a program usually changes just marginally over
! different data sets.
  
   When profile feedback is not available, the compiler may be asked to
  attempt to predict the behavior of each branch in the program using a
! set of heuristics (see 'predict.def' for details) and compute estimated
  frequencies of each basic block by propagating the probabilities over
  the graph.
  
!  Each 'basic_block' contains two integer fields to represent profile
! information: 'frequency' and 'count'.  The 'frequency' is an estimation
  how often is basic block executed within a function.  It is represented
! as an integer scaled in the range from 0 to 'BB_FREQ_BASE'.  The most
  frequently executed basic block in function is initially set to
! 'BB_FREQ_BASE' and the rest of frequencies are scaled accordingly.
  During optimization, the frequency of the most frequent basic block can
  both decrease (for instance by loop unrolling) or grow (for instance by
  cross-jumping optimization), so scaling sometimes has to be performed
  multiple times.
  
!  The 'count' contains hard-counted numbers of execution measured during
  training runs and is nonzero only when profile feedback is available.
  This value is represented as the host's widest integer (typically a 64
! bit integer) of the special type 'gcov_type'.
  
   Most optimization passes can use only the frequency information of a
  basic block, but a few passes may want to know hard execution counts.
*************** during updating of the profile informati
*** 17853,17868 ****
  accumulate into quite large errors.
  
   Each edge also contains a branch probability field: an integer in the
! range from 0 to `REG_BR_PROB_BASE'.  It represents probability of
! passing control from the end of the `src' basic block to the `dest'
  basic block, i.e. the probability that control will flow along this
! edge.  The `EDGE_FREQUENCY' macro is available to compute how
! frequently a given edge is taken.  There is a `count' field for each
! edge as well, representing same information as for a basic block.
  
   The basic block frequencies are not represented in the instruction
  stream, but in the RTL representation the edge frequencies are
! represented for conditional jumps (via the `REG_BR_PROB' macro) since
  they are used when instructions are output to the assembly file and the
  flow graph is no longer maintained.
  
--- 17679,17694 ----
  accumulate into quite large errors.
  
   Each edge also contains a branch probability field: an integer in the
! range from 0 to 'REG_BR_PROB_BASE'.  It represents probability of
! passing control from the end of the 'src' basic block to the 'dest'
  basic block, i.e. the probability that control will flow along this
! edge.  The 'EDGE_FREQUENCY' macro is available to compute how frequently
! a given edge is taken.  There is a 'count' field for each edge as well,
! representing same information as for a basic block.
  
   The basic block frequencies are not represented in the instruction
  stream, but in the RTL representation the edge frequencies are
! represented for conditional jumps (via the 'REG_BR_PROB' macro) since
  they are used when instructions are output to the assembly file and the
  flow graph is no longer maintained.
  
*************** basic blocks.
*** 17874,17892 ****
   Updating profile information is a delicate task that can unfortunately
  not be easily integrated with the CFG manipulation API.  Many of the
  functions and hooks to modify the CFG, such as
! `redirect_edge_and_branch', do not have enough information to easily
  update the profile, so updating it is in the majority of cases left up
  to the caller.  It is difficult to uncover bugs in the profile updating
! code, because they manifest themselves only by producing worse code,
! and checking profile consistency is not possible because of numeric
! error accumulation.  Hence special attention needs to be given to this
! issue in each pass that modifies the CFG.
  
!  It is important to point out that `REG_BR_PROB_BASE' and
! `BB_FREQ_BASE' are both set low enough to be possible to compute second
! power of any frequency or probability in the flow graph, it is not
! possible to even square the `count' field, as modern CPUs are fast
! enough to execute $2^32$ operations quickly.
  
  
  File: gccint.info,  Node: Maintaining the CFG,  Next: Liveness information,  Prev: Profile information,  Up: Control Flow
--- 17700,17718 ----
   Updating profile information is a delicate task that can unfortunately
  not be easily integrated with the CFG manipulation API.  Many of the
  functions and hooks to modify the CFG, such as
! 'redirect_edge_and_branch', do not have enough information to easily
  update the profile, so updating it is in the majority of cases left up
  to the caller.  It is difficult to uncover bugs in the profile updating
! code, because they manifest themselves only by producing worse code, and
! checking profile consistency is not possible because of numeric error
! accumulation.  Hence special attention needs to be given to this issue
! in each pass that modifies the CFG.
  
!  It is important to point out that 'REG_BR_PROB_BASE' and 'BB_FREQ_BASE'
! are both set low enough to be possible to compute second power of any
! frequency or probability in the flow graph, it is not possible to even
! square the 'count' field, as modern CPUs are fast enough to execute
! $2^32$ operations quickly.
  
  
  File: gccint.info,  Node: Maintaining the CFG,  Next: Liveness information,  Prev: Profile information,  Up: Control Flow
*************** File: gccint.info,  Node: Maintaining th
*** 17894,18013 ****
  14.4 Maintaining the CFG
  ========================
  
! An important task of each compiler pass is to keep both the control
! flow graph and all profile information up-to-date.  Reconstruction of
! the control flow graph after each pass is not an option, since it may be
  very expensive and lost profile information cannot be reconstructed at
  all.
  
   GCC has two major intermediate representations, and both use the
! `basic_block' and `edge' data types to represent control flow.  Both
  representations share as much of the CFG maintenance code as possible.
  For each representation, a set of "hooks" is defined so that each
  representation can provide its own implementation of CFG manipulation
! routines when necessary.  These hooks are defined in `cfghooks.h'.
! There are hooks for almost all common CFG manipulations, including
! block splitting and merging, edge redirection and creating and deleting
! basic blocks.  These hooks should provide everything you need to
! maintain and manipulate the CFG in both the RTL and `GIMPLE'
! representation.
  
   At the moment, the basic block boundaries are maintained transparently
  when modifying instructions, so there rarely is a need to move them
  manually (such as in case someone wants to output instruction outside
  basic block explicitly).
  
!  In the RTL representation, each instruction has a `BLOCK_FOR_INSN'
  value that represents pointer to the basic block that contains the
! instruction.  In the `GIMPLE' representation, the function `gimple_bb'
  returns a pointer to the basic block containing the queried statement.
  
!  When changes need to be applied to a function in its `GIMPLE'
  representation, "GIMPLE statement iterators" should be used.  These
  iterators provide an integrated abstraction of the flow graph and the
! instruction stream.  Block statement iterators are constructed using
! the `gimple_stmt_iterator' data structure and several modifiers are
  available, including the following:
  
! `gsi_start'
!      This function initializes a `gimple_stmt_iterator' that points to
       the first non-empty statement in a basic block.
  
! `gsi_last'
!      This function initializes a `gimple_stmt_iterator' that points to
       the last statement in a basic block.
  
! `gsi_end_p'
!      This predicate is `true' if a `gimple_stmt_iterator' represents
!      the end of a basic block.
  
! `gsi_next'
!      This function takes a `gimple_stmt_iterator' and makes it point to
       its successor.
  
! `gsi_prev'
!      This function takes a `gimple_stmt_iterator' and makes it point to
       its predecessor.
  
! `gsi_insert_after'
!      This function inserts a statement after the `gimple_stmt_iterator'
       passed in.  The final parameter determines whether the statement
       iterator is updated to point to the newly inserted statement, or
       left pointing to the original statement.
  
! `gsi_insert_before'
!      This function inserts a statement before the `gimple_stmt_iterator'
       passed in.  The final parameter determines whether the statement
       iterator is updated to point to the newly inserted statement, or
!      left pointing to the original  statement.
  
! `gsi_remove'
!      This function removes the `gimple_stmt_iterator' passed in and
       rechains the remaining statements in a basic block, if any.
  
!  In the RTL representation, the macros `BB_HEAD' and `BB_END' may be
! used to get the head and end `rtx' of a basic block.  No abstract
  iterators are defined for traversing the insn chain, but you can just
! use `NEXT_INSN' and `PREV_INSN' instead.  *Note Insns::.
  
   Usually a code manipulating pass simplifies the instruction stream and
  the flow of control, possibly eliminating some edges.  This may for
! example happen when a conditional jump is replaced with an
! unconditional jump, but also when simplifying possibly trapping
! instruction to non-trapping while compiling Java.  Updating of edges is
! not transparent and each optimization pass is required to do so
! manually.  However only few cases occur in practice.  The pass may call
! `purge_dead_edges' on a given basic block to remove superfluous edges,
! if any.
  
!  Another common scenario is redirection of branch instructions, but
! this is best modeled as redirection of edges in the control flow graph
! and thus use of `redirect_edge_and_branch' is preferred over more low
! level functions, such as `redirect_jump' that operate on RTL chain
! only.  The CFG hooks defined in `cfghooks.h' should provide the
! complete API required for manipulating and maintaining the CFG.
  
   It is also possible that a pass has to insert control flow instruction
  into the middle of a basic block, thus creating an entry point in the
  middle of the basic block, which is impossible by definition: The block
! must be split to make sure it only has one entry point, i.e. the head
! of the basic block.  The CFG hook `split_block' may be used when an
! instruction in the middle of a basic block has to become the target of
! a jump or branch instruction.
  
   For a global optimizer, a common operation is to split edges in the
  flow graph and insert instructions on them.  In the RTL representation,
! this can be easily done using the `insert_insn_on_edge' function that
  emits an instruction "on the edge", caching it for a later
! `commit_edge_insertions' call that will take care of moving the
! inserted instructions off the edge into the instruction stream
! contained in a basic block.  This includes the creation of new basic
! blocks where needed.  In the `GIMPLE' representation, the equivalent
! functions are `gsi_insert_on_edge' which inserts a block statement
! iterator on an edge, and `gsi_commit_edge_inserts' which flushes the
! instruction to actual instruction stream.
  
!  While debugging the optimization pass, the `verify_flow_info' function
  may be useful to find bugs in the control flow graph updating code.
  
  
--- 17720,17837 ----
  14.4 Maintaining the CFG
  ========================
  
! An important task of each compiler pass is to keep both the control flow
! graph and all profile information up-to-date.  Reconstruction of the
! control flow graph after each pass is not an option, since it may be
  very expensive and lost profile information cannot be reconstructed at
  all.
  
   GCC has two major intermediate representations, and both use the
! 'basic_block' and 'edge' data types to represent control flow.  Both
  representations share as much of the CFG maintenance code as possible.
  For each representation, a set of "hooks" is defined so that each
  representation can provide its own implementation of CFG manipulation
! routines when necessary.  These hooks are defined in 'cfghooks.h'.
! There are hooks for almost all common CFG manipulations, including block
! splitting and merging, edge redirection and creating and deleting basic
! blocks.  These hooks should provide everything you need to maintain and
! manipulate the CFG in both the RTL and 'GIMPLE' representation.
  
   At the moment, the basic block boundaries are maintained transparently
  when modifying instructions, so there rarely is a need to move them
  manually (such as in case someone wants to output instruction outside
  basic block explicitly).
  
!  In the RTL representation, each instruction has a 'BLOCK_FOR_INSN'
  value that represents pointer to the basic block that contains the
! instruction.  In the 'GIMPLE' representation, the function 'gimple_bb'
  returns a pointer to the basic block containing the queried statement.
  
!  When changes need to be applied to a function in its 'GIMPLE'
  representation, "GIMPLE statement iterators" should be used.  These
  iterators provide an integrated abstraction of the flow graph and the
! instruction stream.  Block statement iterators are constructed using the
! 'gimple_stmt_iterator' data structure and several modifiers are
  available, including the following:
  
! 'gsi_start'
!      This function initializes a 'gimple_stmt_iterator' that points to
       the first non-empty statement in a basic block.
  
! 'gsi_last'
!      This function initializes a 'gimple_stmt_iterator' that points to
       the last statement in a basic block.
  
! 'gsi_end_p'
!      This predicate is 'true' if a 'gimple_stmt_iterator' represents the
!      end of a basic block.
  
! 'gsi_next'
!      This function takes a 'gimple_stmt_iterator' and makes it point to
       its successor.
  
! 'gsi_prev'
!      This function takes a 'gimple_stmt_iterator' and makes it point to
       its predecessor.
  
! 'gsi_insert_after'
!      This function inserts a statement after the 'gimple_stmt_iterator'
       passed in.  The final parameter determines whether the statement
       iterator is updated to point to the newly inserted statement, or
       left pointing to the original statement.
  
! 'gsi_insert_before'
!      This function inserts a statement before the 'gimple_stmt_iterator'
       passed in.  The final parameter determines whether the statement
       iterator is updated to point to the newly inserted statement, or
!      left pointing to the original statement.
  
! 'gsi_remove'
!      This function removes the 'gimple_stmt_iterator' passed in and
       rechains the remaining statements in a basic block, if any.
  
!  In the RTL representation, the macros 'BB_HEAD' and 'BB_END' may be
! used to get the head and end 'rtx' of a basic block.  No abstract
  iterators are defined for traversing the insn chain, but you can just
! use 'NEXT_INSN' and 'PREV_INSN' instead.  *Note Insns::.
  
   Usually a code manipulating pass simplifies the instruction stream and
  the flow of control, possibly eliminating some edges.  This may for
! example happen when a conditional jump is replaced with an unconditional
! jump, but also when simplifying possibly trapping instruction to
! non-trapping while compiling Java.  Updating of edges is not transparent
! and each optimization pass is required to do so manually.  However only
! few cases occur in practice.  The pass may call 'purge_dead_edges' on a
! given basic block to remove superfluous edges, if any.
  
!  Another common scenario is redirection of branch instructions, but this
! is best modeled as redirection of edges in the control flow graph and
! thus use of 'redirect_edge_and_branch' is preferred over more low level
! functions, such as 'redirect_jump' that operate on RTL chain only.  The
! CFG hooks defined in 'cfghooks.h' should provide the complete API
! required for manipulating and maintaining the CFG.
  
   It is also possible that a pass has to insert control flow instruction
  into the middle of a basic block, thus creating an entry point in the
  middle of the basic block, which is impossible by definition: The block
! must be split to make sure it only has one entry point, i.e. the head of
! the basic block.  The CFG hook 'split_block' may be used when an
! instruction in the middle of a basic block has to become the target of a
! jump or branch instruction.
  
   For a global optimizer, a common operation is to split edges in the
  flow graph and insert instructions on them.  In the RTL representation,
! this can be easily done using the 'insert_insn_on_edge' function that
  emits an instruction "on the edge", caching it for a later
! 'commit_edge_insertions' call that will take care of moving the inserted
! instructions off the edge into the instruction stream contained in a
! basic block.  This includes the creation of new basic blocks where
! needed.  In the 'GIMPLE' representation, the equivalent functions are
! 'gsi_insert_on_edge' which inserts a block statement iterator on an
! edge, and 'gsi_commit_edge_inserts' which flushes the instruction to
! actual instruction stream.
  
!  While debugging the optimization pass, the 'verify_flow_info' function
  may be useful to find bugs in the control flow graph updating code.
  
  
*************** File: gccint.info,  Node: Liveness infor
*** 18017,18052 ****
  =========================
  
  Liveness information is useful to determine whether some register is
! "live" at given point of program, i.e. that it contains a value that
! may be used at a later point in the program.  This information is used,
! for instance, during register allocation, as the pseudo registers only
! need to be assigned to a unique hard register or to a stack slot if
! they are live.  The hard registers and stack slots may be freely reused
! for other values when a register is dead.
  
   Liveness information is available in the back end starting with
! `pass_df_initialize' and ending with `pass_df_finish'.  Three flavors
! of live analysis are available: With `LR', it is possible to determine
! at any point `P' in the function if the register may be used on some
! path from `P' to the end of the function.  With `UR', it is possible to
! determine if there is a path from the beginning of the function to `P'
! that defines the variable.  `LIVE' is the intersection of the `LR' and
! `UR' and a variable is live at `P' if there is both an assignment that
  reaches it from the beginning of the function and a use that can be
! reached on some path from `P' to the end of the function.
  
!  In general `LIVE' is the most useful of the three.  The macros
! `DF_[LR,UR,LIVE]_[IN,OUT]' can be used to access this information.  The
  macros take a basic block number and return a bitmap that is indexed by
  the register number.  This information is only guaranteed to be up to
! date after calls are made to `df_analyze'.  See the file `df-core.c'
! for details on using the dataflow.
  
   The liveness information is stored partly in the RTL instruction stream
  and partly in the flow graph.  Local information is stored in the
! instruction stream: Each instruction may contain `REG_DEAD' notes
  representing that the value of a given register is no longer needed, or
! `REG_UNUSED' notes representing that the value computed by the
  instruction is never used.  The second is useful for instructions
  computing multiple values at once.
  
--- 17841,17876 ----
  =========================
  
  Liveness information is useful to determine whether some register is
! "live" at given point of program, i.e. that it contains a value that may
! be used at a later point in the program.  This information is used, for
! instance, during register allocation, as the pseudo registers only need
! to be assigned to a unique hard register or to a stack slot if they are
! live.  The hard registers and stack slots may be freely reused for other
! values when a register is dead.
  
   Liveness information is available in the back end starting with
! 'pass_df_initialize' and ending with 'pass_df_finish'.  Three flavors of
! live analysis are available: With 'LR', it is possible to determine at
! any point 'P' in the function if the register may be used on some path
! from 'P' to the end of the function.  With 'UR', it is possible to
! determine if there is a path from the beginning of the function to 'P'
! that defines the variable.  'LIVE' is the intersection of the 'LR' and
! 'UR' and a variable is live at 'P' if there is both an assignment that
  reaches it from the beginning of the function and a use that can be
! reached on some path from 'P' to the end of the function.
  
!  In general 'LIVE' is the most useful of the three.  The macros
! 'DF_[LR,UR,LIVE]_[IN,OUT]' can be used to access this information.  The
  macros take a basic block number and return a bitmap that is indexed by
  the register number.  This information is only guaranteed to be up to
! date after calls are made to 'df_analyze'.  See the file 'df-core.c' for
! details on using the dataflow.
  
   The liveness information is stored partly in the RTL instruction stream
  and partly in the flow graph.  Local information is stored in the
! instruction stream: Each instruction may contain 'REG_DEAD' notes
  representing that the value of a given register is no longer needed, or
! 'REG_UNUSED' notes representing that the value computed by the
  instruction is never used.  The second is useful for instructions
  computing multiple values at once.
  
*************** File: gccint.info,  Node: Loop represent
*** 18081,18089 ****
  
  This chapter describes the representation of loops in GCC, and functions
  that can be used to build, modify and analyze this representation.  Most
! of the interfaces and data structures are declared in `cfgloop.h'.
! Loop structures are analyzed and this information disposed or updated
! at the discretion of individual passes.  Still most of the generic CFG
  manipulation routines are aware of loop structures and try to keep them
  up-to-date.  By this means an increasing part of the compilation
  pipeline is setup to maintain loop structure across passes to allow
--- 17905,17913 ----
  
  This chapter describes the representation of loops in GCC, and functions
  that can be used to build, modify and analyze this representation.  Most
! of the interfaces and data structures are declared in 'cfgloop.h'.  Loop
! structures are analyzed and this information disposed or updated at the
! discretion of individual passes.  Still most of the generic CFG
  manipulation routines are aware of loop structures and try to keep them
  up-to-date.  By this means an increasing part of the compilation
  pipeline is setup to maintain loop structure across passes to allow
*************** correspond to sub-loops or to control fl
*** 18103,18109 ****
  that the analysis sometimes changes the CFG, and if you run it in the
  middle of an optimization pass, you must be able to deal with the new
  blocks.  You may avoid CFG changes by passing
! `LOOPS_MAY_HAVE_MULTIPLE_LATCHES' flag to the loop discovery, note
  however that most other loop manipulation functions will not work
  correctly for loops with multiple latch edges (the functions that only
  query membership of blocks to loops and subloop relationships, or
--- 17927,17933 ----
  that the analysis sometimes changes the CFG, and if you run it in the
  middle of an optimization pass, you must be able to deal with the new
  blocks.  You may avoid CFG changes by passing
! 'LOOPS_MAY_HAVE_MULTIPLE_LATCHES' flag to the loop discovery, note
  however that most other loop manipulation functions will not work
  correctly for loops with multiple latch edges (the functions that only
  query membership of blocks to loops and subloop relationships, or
*************** enumerate and test loop exits, can be ex
*** 18113,18171 ****
  and reachable from its latch against the direction of edges in CFG.  The
  loops are organized in a containment hierarchy (tree) such that all the
  loops immediately contained inside loop L are the children of L in the
! tree.  This tree is represented by the `struct loops' structure.  The
  root of this tree is a fake loop that contains all blocks in the
! function.  Each of the loops is represented in a `struct loop'
! structure.  Each loop is assigned an index (`num' field of the `struct
  loop' structure), and the pointer to the loop is stored in the
! corresponding field of the `larray' vector in the loops structure.  The
! indices do not have to be continuous, there may be empty (`NULL')
! entries in the `larray' created by deleting loops.  Also, there is no
  guarantee on the relative order of a loop and its subloops in the
  numbering.  The index of a loop never changes.
  
!  The entries of the `larray' field should not be accessed directly.
! The function `get_loop' returns the loop description for a loop with
! the given index.  `number_of_loops' function returns number of loops in
! the function.  To traverse all loops, use `FOR_EACH_LOOP' macro.  The
! `flags' argument of the macro is used to determine the direction of
  traversal and the set of loops visited.  Each loop is guaranteed to be
  visited exactly once, regardless of the changes to the loop tree, and
  the loops may be removed during the traversal.  The newly created loops
  are never traversed, if they need to be visited, this must be done
! separately after their creation.  The `FOR_EACH_LOOP' macro allocates
! temporary variables.  If the `FOR_EACH_LOOP' loop were ended using
! break or goto, they would not be released; `FOR_EACH_LOOP_BREAK' macro
! must be used instead.
  
   Each basic block contains the reference to the innermost loop it
! belongs to (`loop_father').  For this reason, it is only possible to
! have one `struct loops' structure initialized at the same time for each
! CFG.  The global variable `current_loops' contains the `struct loops'
  structure.  Many of the loop manipulation functions assume that
  dominance information is up-to-date.
  
!  The loops are analyzed through `loop_optimizer_init' function.  The
  argument of this function is a set of flags represented in an integer
  bitmask.  These flags specify what other properties of the loop
  structures should be calculated/enforced and preserved later:
  
!    * `LOOPS_MAY_HAVE_MULTIPLE_LATCHES': If this flag is set, no changes
!      to CFG will be performed in the loop analysis, in particular,
!      loops with multiple latch edges will not be disambiguated.  If a
!      loop has multiple latches, its latch block is set to NULL.  Most of
!      the loop manipulation functions will not work for loops in this
!      shape.  No other flags that require CFG changes can be passed to
       loop_optimizer_init.
! 
!    * `LOOPS_HAVE_PREHEADERS': Forwarder blocks are created in such a
!      way that each loop has only one entry edge, and additionally, the
       source block of this entry edge has only one successor.  This
       creates a natural place where the code can be moved out of the
       loop, and ensures that the entry edge of the loop leads from its
       immediate super-loop.
! 
!    * `LOOPS_HAVE_SIMPLE_LATCHES': Forwarder blocks are created to force
       the latch block of each loop to have only one successor.  This
       ensures that the latch of the loop does not belong to any of its
       sub-loops, and makes manipulation with the loops significantly
--- 17937,17993 ----
  and reachable from its latch against the direction of edges in CFG.  The
  loops are organized in a containment hierarchy (tree) such that all the
  loops immediately contained inside loop L are the children of L in the
! tree.  This tree is represented by the 'struct loops' structure.  The
  root of this tree is a fake loop that contains all blocks in the
! function.  Each of the loops is represented in a 'struct loop'
! structure.  Each loop is assigned an index ('num' field of the 'struct
  loop' structure), and the pointer to the loop is stored in the
! corresponding field of the 'larray' vector in the loops structure.  The
! indices do not have to be continuous, there may be empty ('NULL')
! entries in the 'larray' created by deleting loops.  Also, there is no
  guarantee on the relative order of a loop and its subloops in the
  numbering.  The index of a loop never changes.
  
!  The entries of the 'larray' field should not be accessed directly.  The
! function 'get_loop' returns the loop description for a loop with the
! given index.  'number_of_loops' function returns number of loops in the
! function.  To traverse all loops, use 'FOR_EACH_LOOP' macro.  The
! 'flags' argument of the macro is used to determine the direction of
  traversal and the set of loops visited.  Each loop is guaranteed to be
  visited exactly once, regardless of the changes to the loop tree, and
  the loops may be removed during the traversal.  The newly created loops
  are never traversed, if they need to be visited, this must be done
! separately after their creation.  The 'FOR_EACH_LOOP' macro allocates
! temporary variables.  If the 'FOR_EACH_LOOP' loop were ended using break
! or goto, they would not be released; 'FOR_EACH_LOOP_BREAK' macro must be
! used instead.
  
   Each basic block contains the reference to the innermost loop it
! belongs to ('loop_father').  For this reason, it is only possible to
! have one 'struct loops' structure initialized at the same time for each
! CFG.  The global variable 'current_loops' contains the 'struct loops'
  structure.  Many of the loop manipulation functions assume that
  dominance information is up-to-date.
  
!  The loops are analyzed through 'loop_optimizer_init' function.  The
  argument of this function is a set of flags represented in an integer
  bitmask.  These flags specify what other properties of the loop
  structures should be calculated/enforced and preserved later:
  
!    * 'LOOPS_MAY_HAVE_MULTIPLE_LATCHES': If this flag is set, no changes
!      to CFG will be performed in the loop analysis, in particular, loops
!      with multiple latch edges will not be disambiguated.  If a loop has
!      multiple latches, its latch block is set to NULL.  Most of the loop
!      manipulation functions will not work for loops in this shape.  No
!      other flags that require CFG changes can be passed to
       loop_optimizer_init.
!    * 'LOOPS_HAVE_PREHEADERS': Forwarder blocks are created in such a way
!      that each loop has only one entry edge, and additionally, the
       source block of this entry edge has only one successor.  This
       creates a natural place where the code can be moved out of the
       loop, and ensures that the entry edge of the loop leads from its
       immediate super-loop.
!    * 'LOOPS_HAVE_SIMPLE_LATCHES': Forwarder blocks are created to force
       the latch block of each loop to have only one successor.  This
       ensures that the latch of the loop does not belong to any of its
       sub-loops, and makes manipulation with the loops significantly
*************** structures should be calculated/enforced
*** 18173,18212 ****
       loops are in this shape.  Note that with this flag, the "normal"
       loop without any control flow inside and with one exit consists of
       two basic blocks.
! 
!    * `LOOPS_HAVE_MARKED_IRREDUCIBLE_REGIONS': Basic blocks and edges in
       the strongly connected components that are not natural loops (have
!      more than one entry block) are marked with `BB_IRREDUCIBLE_LOOP'
!      and `EDGE_IRREDUCIBLE_LOOP' flags.  The flag is not set for blocks
       and edges that belong to natural loops that are in such an
       irreducible region (but it is set for the entry and exit edges of
       such a loop, if they lead to/from this region).
! 
!    * `LOOPS_HAVE_RECORDED_EXITS': The lists of exits are recorded and
       updated for each loop.  This makes some functions (e.g.,
!      `get_loop_exit_edges') more efficient.  Some functions (e.g.,
!      `single_exit') can be used only if the lists of exits are recorded.
  
   These properties may also be computed/enforced later, using functions
! `create_preheaders', `force_single_succ_latches',
! `mark_irreducible_loops' and `record_loop_exits'.  The properties can
! be queried using `loops_state_satisfies_p'.
  
   The memory occupied by the loops structures should be freed with
! `loop_optimizer_finalize' function.  When loop structures are setup to
  be preserved across passes this function reduces the information to be
! kept up-to-date to a minimum (only `LOOPS_MAY_HAVE_MULTIPLE_LATCHES'
  set).
  
   The CFG manipulation functions in general do not update loop
  structures.  Specialized versions that additionally do so are provided
! for the most common tasks.  On GIMPLE, `cleanup_tree_cfg_loop' function
  can be used to cleanup CFG while updating the loops structures if
! `current_loops' is set.
  
!  At the moment loop structure is preserved from the start of GIMPLE
! loop optimizations until the end of RTL loop optimizations.  During
! this time a loop can be tracked by its `struct loop' and number.
  
  
  File: gccint.info,  Node: Loop querying,  Next: Loop manipulation,  Prev: Loop representation,  Up: Loop Analysis and Representation
--- 17995,18032 ----
       loops are in this shape.  Note that with this flag, the "normal"
       loop without any control flow inside and with one exit consists of
       two basic blocks.
!    * 'LOOPS_HAVE_MARKED_IRREDUCIBLE_REGIONS': Basic blocks and edges in
       the strongly connected components that are not natural loops (have
!      more than one entry block) are marked with 'BB_IRREDUCIBLE_LOOP'
!      and 'EDGE_IRREDUCIBLE_LOOP' flags.  The flag is not set for blocks
       and edges that belong to natural loops that are in such an
       irreducible region (but it is set for the entry and exit edges of
       such a loop, if they lead to/from this region).
!    * 'LOOPS_HAVE_RECORDED_EXITS': The lists of exits are recorded and
       updated for each loop.  This makes some functions (e.g.,
!      'get_loop_exit_edges') more efficient.  Some functions (e.g.,
!      'single_exit') can be used only if the lists of exits are recorded.
  
   These properties may also be computed/enforced later, using functions
! 'create_preheaders', 'force_single_succ_latches',
! 'mark_irreducible_loops' and 'record_loop_exits'.  The properties can be
! queried using 'loops_state_satisfies_p'.
  
   The memory occupied by the loops structures should be freed with
! 'loop_optimizer_finalize' function.  When loop structures are setup to
  be preserved across passes this function reduces the information to be
! kept up-to-date to a minimum (only 'LOOPS_MAY_HAVE_MULTIPLE_LATCHES'
  set).
  
   The CFG manipulation functions in general do not update loop
  structures.  Specialized versions that additionally do so are provided
! for the most common tasks.  On GIMPLE, 'cleanup_tree_cfg_loop' function
  can be used to cleanup CFG while updating the loops structures if
! 'current_loops' is set.
  
!  At the moment loop structure is preserved from the start of GIMPLE loop
! optimizations until the end of RTL loop optimizations.  During this time
! a loop can be tracked by its 'struct loop' and number.
  
  
  File: gccint.info,  Node: Loop querying,  Next: Loop manipulation,  Prev: Loop representation,  Up: Loop Analysis and Representation
*************** File: gccint.info,  Node: Loop querying,
*** 18215,18231 ****
  ==================
  
  The functions to query the information about loops are declared in
! `cfgloop.h'.  Some of the information can be taken directly from the
! structures.  `loop_father' field of each basic block contains the
  innermost loop to that the block belongs.  The most useful fields of
  loop structure (that are kept up-to-date at all times) are:
  
!    * `header', `latch': Header and latch basic blocks of the loop.
! 
!    * `num_nodes': Number of basic blocks in the loop (including the
       basic blocks of the sub-loops).
! 
!    * `outer', `inner', `next': The super-loop, the first sub-loop, and
       the sibling of the loop in the loops tree.
  
   There are other fields in the loop structures, many of them used only
--- 18035,18049 ----
  ==================
  
  The functions to query the information about loops are declared in
! 'cfgloop.h'.  Some of the information can be taken directly from the
! structures.  'loop_father' field of each basic block contains the
  innermost loop to that the block belongs.  The most useful fields of
  loop structure (that are kept up-to-date at all times) are:
  
!    * 'header', 'latch': Header and latch basic blocks of the loop.
!    * 'num_nodes': Number of basic blocks in the loop (including the
       basic blocks of the sub-loops).
!    * 'outer', 'inner', 'next': The super-loop, the first sub-loop, and
       the sibling of the loop in the loops tree.
  
   There are other fields in the loop structures, many of them used only
*************** they should not be accessed directly.
*** 18234,18282 ****
  
   The most important functions to query loop structures are:
  
!    * `loop_depth': The depth of the loop in the loops tree, i.e., the
       number of super-loops of the loop.
! 
!    * `flow_loops_dump': Dumps the information about loops to a file.
! 
!    * `verify_loop_structure': Checks consistency of the loop structures.
! 
!    * `loop_latch_edge': Returns the latch edge of a loop.
! 
!    * `loop_preheader_edge': If loops have preheaders, returns the
       preheader edge of a loop.
! 
!    * `flow_loop_nested_p': Tests whether loop is a sub-loop of another
       loop.
! 
!    * `flow_bb_inside_loop_p': Tests whether a basic block belongs to a
       loop (including its sub-loops).
! 
!    * `find_common_loop': Finds the common super-loop of two loops.
! 
!    * `superloop_at_depth': Returns the super-loop of a loop with the
       given depth.
! 
!    * `tree_num_loop_insns', `num_loop_insns': Estimates the number of
       insns in the loop, on GIMPLE and on RTL.
! 
!    * `loop_exit_edge_p': Tests whether edge is an exit from a loop.
! 
!    * `mark_loop_exit_edges': Marks all exit edges of all loops with
!      `EDGE_LOOP_EXIT' flag.
! 
!    * `get_loop_body', `get_loop_body_in_dom_order',
!      `get_loop_body_in_bfs_order': Enumerates the basic blocks in the
       loop in depth-first search order in reversed CFG, ordered by
       dominance relation, and breath-first search order, respectively.
! 
!    * `single_exit': Returns the single exit edge of the loop, or `NULL'
!      if the loop has more than one exit.  You can only use this
!      function if LOOPS_HAVE_MARKED_SINGLE_EXITS property is used.
! 
!    * `get_loop_exit_edges': Enumerates the exit edges of a loop.
! 
!    * `just_once_each_iteration_p': Returns true if the basic block is
       executed exactly once during each iteration of a loop (that is, it
       does not belong to a sub-loop, and it dominates the latch of the
       loop).
--- 18052,18085 ----
  
   The most important functions to query loop structures are:
  
!    * 'loop_depth': The depth of the loop in the loops tree, i.e., the
       number of super-loops of the loop.
!    * 'flow_loops_dump': Dumps the information about loops to a file.
!    * 'verify_loop_structure': Checks consistency of the loop structures.
!    * 'loop_latch_edge': Returns the latch edge of a loop.
!    * 'loop_preheader_edge': If loops have preheaders, returns the
       preheader edge of a loop.
!    * 'flow_loop_nested_p': Tests whether loop is a sub-loop of another
       loop.
!    * 'flow_bb_inside_loop_p': Tests whether a basic block belongs to a
       loop (including its sub-loops).
!    * 'find_common_loop': Finds the common super-loop of two loops.
!    * 'superloop_at_depth': Returns the super-loop of a loop with the
       given depth.
!    * 'tree_num_loop_insns', 'num_loop_insns': Estimates the number of
       insns in the loop, on GIMPLE and on RTL.
!    * 'loop_exit_edge_p': Tests whether edge is an exit from a loop.
!    * 'mark_loop_exit_edges': Marks all exit edges of all loops with
!      'EDGE_LOOP_EXIT' flag.
!    * 'get_loop_body', 'get_loop_body_in_dom_order',
!      'get_loop_body_in_bfs_order': Enumerates the basic blocks in the
       loop in depth-first search order in reversed CFG, ordered by
       dominance relation, and breath-first search order, respectively.
!    * 'single_exit': Returns the single exit edge of the loop, or 'NULL'
!      if the loop has more than one exit.  You can only use this function
!      if LOOPS_HAVE_MARKED_SINGLE_EXITS property is used.
!    * 'get_loop_exit_edges': Enumerates the exit edges of a loop.
!    * 'just_once_each_iteration_p': Returns true if the basic block is
       executed exactly once during each iteration of a loop (that is, it
       does not belong to a sub-loop, and it dominates the latch of the
       loop).
*************** File: gccint.info,  Node: Loop manipulat
*** 18289,18309 ****
  
  The loops tree can be manipulated using the following functions:
  
!    * `flow_loop_tree_node_add': Adds a node to the tree.
! 
!    * `flow_loop_tree_node_remove': Removes a node from the tree.
! 
!    * `add_bb_to_loop': Adds a basic block to a loop.
! 
!    * `remove_bb_from_loops': Removes a basic block from loops.
  
   Most low-level CFG functions update loops automatically.  The following
  functions handle some more complicated cases of CFG manipulations:
  
!    * `remove_path': Removes an edge and all blocks it dominates.
! 
!    * `split_loop_exit_edge': Splits exit edge of the loop, ensuring
!      that PHI node arguments remain in the loop (this ensures that
       loop-closed SSA form is preserved).  Only useful on GIMPLE.
  
   Finally, there are some higher-level loop transformations implemented.
--- 18092,18108 ----
  
  The loops tree can be manipulated using the following functions:
  
!    * 'flow_loop_tree_node_add': Adds a node to the tree.
!    * 'flow_loop_tree_node_remove': Removes a node from the tree.
!    * 'add_bb_to_loop': Adds a basic block to a loop.
!    * 'remove_bb_from_loops': Removes a basic block from loops.
  
   Most low-level CFG functions update loops automatically.  The following
  functions handle some more complicated cases of CFG manipulations:
  
!    * 'remove_path': Removes an edge and all blocks it dominates.
!    * 'split_loop_exit_edge': Splits exit edge of the loop, ensuring that
!      PHI node arguments remain in the loop (this ensures that
       loop-closed SSA form is preserved).  Only useful on GIMPLE.
  
   Finally, there are some higher-level loop transformations implemented.
*************** While some of them are written so that t
*** 18311,18336 ****
  loops, they are mostly untested in that case, and at the moment, they
  are only reliable for the innermost loops:
  
!    * `create_iv': Creates a new induction variable.  Only works on
!      GIMPLE.  `standard_iv_increment_position' can be used to find a
       suitable place for the iv increment.
! 
!    * `duplicate_loop_to_header_edge',
!      `tree_duplicate_loop_to_header_edge': These functions (on RTL and
       on GIMPLE) duplicate the body of the loop prescribed number of
       times on one of the edges entering loop header, thus performing
!      either loop unrolling or loop peeling.  `can_duplicate_loop_p'
!      (`can_unroll_loop_p' on GIMPLE) must be true for the duplicated
       loop.
! 
!    * `loop_version', `tree_ssa_loop_version': These function create a
       copy of a loop, and a branch before them that selects one of them
       depending on the prescribed condition.  This is useful for
       optimizations that need to verify some assumptions in runtime (one
       of the copies of the loop is usually left unchanged, while the
       other one is transformed in some way).
! 
!    * `tree_unroll_loop': Unrolls the loop, including peeling the extra
       iterations to make the number of iterations divisible by unroll
       factor, updating the exit condition, and removing the exits that
       now cannot be taken.  Works only on GIMPLE.
--- 18110,18132 ----
  loops, they are mostly untested in that case, and at the moment, they
  are only reliable for the innermost loops:
  
!    * 'create_iv': Creates a new induction variable.  Only works on
!      GIMPLE.  'standard_iv_increment_position' can be used to find a
       suitable place for the iv increment.
!    * 'duplicate_loop_to_header_edge',
!      'tree_duplicate_loop_to_header_edge': These functions (on RTL and
       on GIMPLE) duplicate the body of the loop prescribed number of
       times on one of the edges entering loop header, thus performing
!      either loop unrolling or loop peeling.  'can_duplicate_loop_p'
!      ('can_unroll_loop_p' on GIMPLE) must be true for the duplicated
       loop.
!    * 'loop_version', 'tree_ssa_loop_version': These function create a
       copy of a loop, and a branch before them that selects one of them
       depending on the prescribed condition.  This is useful for
       optimizations that need to verify some assumptions in runtime (one
       of the copies of the loop is usually left unchanged, while the
       other one is transformed in some way).
!    * 'tree_unroll_loop': Unrolls the loop, including peeling the extra
       iterations to make the number of iterations divisible by unroll
       factor, updating the exit condition, and removing the exits that
       now cannot be taken.  Works only on GIMPLE.
*************** File: gccint.info,  Node: LCSSA,  Next:
*** 18342,18348 ****
  =========================
  
  Throughout the loop optimizations on tree level, one extra condition is
! enforced on the SSA form:  No SSA name is used outside of the loop in
  that it is defined.  The SSA form satisfying this condition is called
  "loop-closed SSA form" - LCSSA.  To enforce LCSSA, PHI nodes must be
  created at the exits of the loops for the SSA names that are used
--- 18138,18144 ----
  =========================
  
  Throughout the loop optimizations on tree level, one extra condition is
! enforced on the SSA form: No SSA name is used outside of the loop in
  that it is defined.  The SSA form satisfying this condition is called
  "loop-closed SSA form" - LCSSA.  To enforce LCSSA, PHI nodes must be
  created at the exits of the loops for the SSA names that are used
*************** held in LCSSA, in order to save memory.
*** 18355,18381 ****
       are interested in the values that are defined in the loop and used
       outside of it, i.e., exactly those for that we create new PHI
       nodes.
- 
     * In induction variable analysis, it is not necessary to specify the
       loop in that the analysis should be performed - the scalar
       evolution analysis always returns the results with respect to the
       loop in that the SSA name is defined.
- 
     * It makes updating of SSA form during loop transformations simpler.
!      Without LCSSA, operations like loop unrolling may force creation
!      of PHI nodes arbitrarily far from the loop, while in LCSSA, the
!      SSA form can be updated locally.  However, since we only keep real
       operands in LCSSA, we cannot use this advantage (we could have
       local updating of real operands, but it is not much more efficient
!      than to use generic SSA form updating for it as well; the amount
!      of changes to SSA is the same).
  
   However, it also means LCSSA must be updated.  This is usually
  straightforward, unless you create a new value in loop and use it
  outside, or unless you manipulate loop exit edges (functions are
  provided to make these manipulations simple).
! `rewrite_into_loop_closed_ssa' is used to rewrite SSA form to LCSSA,
! and `verify_loop_closed_ssa' to check that the invariant of LCSSA is
  preserved.
  
  
--- 18151,18175 ----
       are interested in the values that are defined in the loop and used
       outside of it, i.e., exactly those for that we create new PHI
       nodes.
     * In induction variable analysis, it is not necessary to specify the
       loop in that the analysis should be performed - the scalar
       evolution analysis always returns the results with respect to the
       loop in that the SSA name is defined.
     * It makes updating of SSA form during loop transformations simpler.
!      Without LCSSA, operations like loop unrolling may force creation of
!      PHI nodes arbitrarily far from the loop, while in LCSSA, the SSA
!      form can be updated locally.  However, since we only keep real
       operands in LCSSA, we cannot use this advantage (we could have
       local updating of real operands, but it is not much more efficient
!      than to use generic SSA form updating for it as well; the amount of
!      changes to SSA is the same).
  
   However, it also means LCSSA must be updated.  This is usually
  straightforward, unless you create a new value in loop and use it
  outside, or unless you manipulate loop exit edges (functions are
  provided to make these manipulations simple).
! 'rewrite_into_loop_closed_ssa' is used to rewrite SSA form to LCSSA, and
! 'verify_loop_closed_ssa' to check that the invariant of LCSSA is
  preserved.
  
  
*************** variable analysis on GIMPLE.  They enabl
*** 18389,18425 ****
  complicated behavior in a simple and consistent way (we only use it to
  express values of polynomial induction variables, but it is possible to
  extend it).  The interfaces to SCEV analysis are declared in
! `tree-scalar-evolution.h'.  To use scalar evolutions analysis,
! `scev_initialize' must be used.  To stop using SCEV, `scev_finalize'
  should be used.  SCEV analysis caches results in order to save time and
  memory.  This cache however is made invalid by most of the loop
! transformations, including removal of code.  If such a transformation
! is performed, `scev_reset' must be called to clean the caches.
  
   Given an SSA name, its behavior in loops can be analyzed using the
! `analyze_scalar_evolution' function.  The returned SCEV however does
! not have to be fully analyzed and it may contain references to other
! SSA names defined in the loop.  To resolve these (potentially
! recursive) references, `instantiate_parameters' or `resolve_mixers'
! functions must be used.  `instantiate_parameters' is useful when you
! use the results of SCEV only for some analysis, and when you work with
! whole nest of loops at once.  It will try replacing all SSA names by
! their SCEV in all loops, including the super-loops of the current loop,
! thus providing a complete information about the behavior of the
! variable in the loop nest.  `resolve_mixers' is useful if you work with
! only one loop at a time, and if you possibly need to create code based
! on the value of the induction variable.  It will only resolve the SSA
! names defined in the current loop, leaving the SSA names defined
! outside unchanged, even if their evolution in the outer loops is known.
  
   The SCEV is a normal tree expression, except for the fact that it may
! contain several special tree nodes.  One of them is `SCEV_NOT_KNOWN',
  used for SSA names whose value cannot be expressed.  The other one is
! `POLYNOMIAL_CHREC'.  Polynomial chrec has three arguments - base, step
  and loop (both base and step may contain further polynomial chrecs).
  Type of the expression and of base and step must be the same.  A
! variable has evolution `POLYNOMIAL_CHREC(base, step, loop)' if it is
! (in the specified loop) equivalent to `x_1' in the following example
  
       while (...)
         {
--- 18183,18219 ----
  complicated behavior in a simple and consistent way (we only use it to
  express values of polynomial induction variables, but it is possible to
  extend it).  The interfaces to SCEV analysis are declared in
! 'tree-scalar-evolution.h'.  To use scalar evolutions analysis,
! 'scev_initialize' must be used.  To stop using SCEV, 'scev_finalize'
  should be used.  SCEV analysis caches results in order to save time and
  memory.  This cache however is made invalid by most of the loop
! transformations, including removal of code.  If such a transformation is
! performed, 'scev_reset' must be called to clean the caches.
  
   Given an SSA name, its behavior in loops can be analyzed using the
! 'analyze_scalar_evolution' function.  The returned SCEV however does not
! have to be fully analyzed and it may contain references to other SSA
! names defined in the loop.  To resolve these (potentially recursive)
! references, 'instantiate_parameters' or 'resolve_mixers' functions must
! be used.  'instantiate_parameters' is useful when you use the results of
! SCEV only for some analysis, and when you work with whole nest of loops
! at once.  It will try replacing all SSA names by their SCEV in all
! loops, including the super-loops of the current loop, thus providing a
! complete information about the behavior of the variable in the loop
! nest.  'resolve_mixers' is useful if you work with only one loop at a
! time, and if you possibly need to create code based on the value of the
! induction variable.  It will only resolve the SSA names defined in the
! current loop, leaving the SSA names defined outside unchanged, even if
! their evolution in the outer loops is known.
  
   The SCEV is a normal tree expression, except for the fact that it may
! contain several special tree nodes.  One of them is 'SCEV_NOT_KNOWN',
  used for SSA names whose value cannot be expressed.  The other one is
! 'POLYNOMIAL_CHREC'.  Polynomial chrec has three arguments - base, step
  and loop (both base and step may contain further polynomial chrecs).
  Type of the expression and of base and step must be the same.  A
! variable has evolution 'POLYNOMIAL_CHREC(base, step, loop)' if it is (in
! the specified loop) equivalent to 'x_1' in the following example
  
       while (...)
         {
*************** variable has evolution `POLYNOMIAL_CHREC
*** 18428,18434 ****
         }
  
   Note that this includes the language restrictions on the operations.
! For example, if we compile C code and `x' has signed type, then the
  overflow in addition would cause undefined behavior, and we may assume
  that this does not happen.  Hence, the value with this SCEV cannot
  overflow (which restricts the number of iterations of such a loop).
--- 18222,18228 ----
         }
  
   Note that this includes the language restrictions on the operations.
! For example, if we compile C code and 'x' has signed type, then the
  overflow in addition would cause undefined behavior, and we may assume
  that this does not happen.  Hence, the value with this SCEV cannot
  overflow (which restricts the number of iterations of such a loop).
*************** overflow (which restricts the number of
*** 18436,18442 ****
   In many cases, one wants to restrict the attention just to affine
  induction variables.  In this case, the extra expressive power of SCEV
  is not useful, and may complicate the optimizations.  In this case,
! `simple_iv' function may be used to analyze a value - the result is a
  loop-invariant base and step.
  
  
--- 18230,18236 ----
   In many cases, one wants to restrict the attention just to affine
  induction variables.  In this case, the extra expressive power of SCEV
  is not useful, and may complicate the optimizations.  In this case,
! 'simple_iv' function may be used to analyze a value - the result is a
  loop-invariant base and step.
  
  
*************** File: gccint.info,  Node: loop-iv,  Next
*** 18447,18486 ****
  
  The induction variable on RTL is simple and only allows analysis of
  affine induction variables, and only in one loop at once.  The interface
! is declared in `cfgloop.h'.  Before analyzing induction variables in a
! loop L, `iv_analysis_loop_init' function must be called on L.  After
! the analysis (possibly calling `iv_analysis_loop_init' for several
! loops) is finished, `iv_analysis_done' should be called.  The following
! functions can be used to access the results of the analysis:
  
!    * `iv_analyze': Analyzes a single register used in the given insn.
       If no use of the register in this insn is found, the following
       insns are scanned, so that this function can be called on the insn
       returned by get_condition.
  
!    * `iv_analyze_result': Analyzes result of the assignment in the
!      given insn.
! 
!    * `iv_analyze_expr': Analyzes a more complicated expression.  All
!      its operands are analyzed by `iv_analyze', and hence they must be
!      used in the specified insn or one of the following insns.
! 
!  The description of the induction variable is provided in `struct
  rtx_iv'.  In order to handle subregs, the representation is a bit
! complicated; if the value of the `extend' field is not `UNKNOWN', the
  value of the induction variable in the i-th iteration is
  
       delta + mult * extend_{extend_mode} (subreg_{mode} (base + i * step)),
  
!  with the following exception:  if `first_special' is true, then the
! value in the first iteration (when `i' is zero) is `delta + mult *
! base'.  However, if `extend' is equal to `UNKNOWN', then
! `first_special' must be false, `delta' 0, `mult' 1 and the value in the
! i-th iteration is
  
       subreg_{mode} (base + i * step)
  
!  The function `get_iv_value' can be used to perform these calculations.
  
  
  File: gccint.info,  Node: Number of iterations,  Next: Dependency analysis,  Prev: loop-iv,  Up: Loop Analysis and Representation
--- 18241,18278 ----
  
  The induction variable on RTL is simple and only allows analysis of
  affine induction variables, and only in one loop at once.  The interface
! is declared in 'cfgloop.h'.  Before analyzing induction variables in a
! loop L, 'iv_analysis_loop_init' function must be called on L. After the
! analysis (possibly calling 'iv_analysis_loop_init' for several loops) is
! finished, 'iv_analysis_done' should be called.  The following functions
! can be used to access the results of the analysis:
  
!    * 'iv_analyze': Analyzes a single register used in the given insn.
       If no use of the register in this insn is found, the following
       insns are scanned, so that this function can be called on the insn
       returned by get_condition.
+    * 'iv_analyze_result': Analyzes result of the assignment in the given
+      insn.
+    * 'iv_analyze_expr': Analyzes a more complicated expression.  All its
+      operands are analyzed by 'iv_analyze', and hence they must be used
+      in the specified insn or one of the following insns.
  
!  The description of the induction variable is provided in 'struct
  rtx_iv'.  In order to handle subregs, the representation is a bit
! complicated; if the value of the 'extend' field is not 'UNKNOWN', the
  value of the induction variable in the i-th iteration is
  
       delta + mult * extend_{extend_mode} (subreg_{mode} (base + i * step)),
  
!  with the following exception: if 'first_special' is true, then the
! value in the first iteration (when 'i' is zero) is 'delta + mult *
! base'.  However, if 'extend' is equal to 'UNKNOWN', then 'first_special'
! must be false, 'delta' 0, 'mult' 1 and the value in the i-th iteration
! is
  
       subreg_{mode} (base + i * step)
  
!  The function 'get_iv_value' can be used to perform these calculations.
  
  
  File: gccint.info,  Node: Number of iterations,  Next: Dependency analysis,  Prev: loop-iv,  Up: Loop Analysis and Representation
*************** program; if it fails, the conditions are
*** 18499,18540 ****
  result.  The following information and conditions are provided by the
  analysis:
  
!    * `assumptions': If this condition is false, the rest of the
       information is invalid.
! 
!    * `noloop_assumptions' on RTL, `may_be_zero' on GIMPLE: If this
       condition is true, the loop exits in the first iteration.
! 
!    * `infinite': If this condition is true, the loop is infinite.  This
       condition is only available on RTL.  On GIMPLE, conditions for
!      finiteness of the loop are included in `assumptions'.
! 
!    * `niter_expr' on RTL, `niter' on GIMPLE: The expression that gives
       number of iterations.  The number of iterations is defined as the
       number of executions of the loop latch.
  
   Both on GIMPLE and on RTL, it necessary for the induction variable
  analysis framework to be initialized (SCEV on GIMPLE, loop-iv on RTL).
! On GIMPLE, the results are stored to `struct tree_niter_desc'
! structure.  Number of iterations before the loop is exited through a
! given exit can be determined using `number_of_iterations_exit'
! function.  On RTL, the results are returned in `struct niter_desc'
! structure.  The corresponding function is named `check_simple_exit'.
! There are also functions that pass through all the exits of a loop and
! try to find one with easy to determine number of iterations -
! `find_loop_niter' on GIMPLE and `find_simple_exit' on RTL.  Finally,
! there are functions that provide the same information, but additionally
! cache it, so that repeated calls to number of iterations are not so
! costly - `number_of_latch_executions' on GIMPLE and
! `get_simple_loop_desc' on RTL.
  
   Note that some of these functions may behave slightly differently than
  others - some of them return only the expression for the number of
  iterations, and fail if there are some assumptions.  The function
! `number_of_latch_executions' works only for single-exit loops.  The
! function `number_of_cond_exit_executions' can be used to determine
  number of executions of the exit condition of a single-exit loop (i.e.,
! the `number_of_latch_executions' increased by one).
  
  
  File: gccint.info,  Node: Dependency analysis,  Prev: Number of iterations,  Up: Loop Analysis and Representation
--- 18291,18329 ----
  result.  The following information and conditions are provided by the
  analysis:
  
!    * 'assumptions': If this condition is false, the rest of the
       information is invalid.
!    * 'noloop_assumptions' on RTL, 'may_be_zero' on GIMPLE: If this
       condition is true, the loop exits in the first iteration.
!    * 'infinite': If this condition is true, the loop is infinite.  This
       condition is only available on RTL.  On GIMPLE, conditions for
!      finiteness of the loop are included in 'assumptions'.
!    * 'niter_expr' on RTL, 'niter' on GIMPLE: The expression that gives
       number of iterations.  The number of iterations is defined as the
       number of executions of the loop latch.
  
   Both on GIMPLE and on RTL, it necessary for the induction variable
  analysis framework to be initialized (SCEV on GIMPLE, loop-iv on RTL).
! On GIMPLE, the results are stored to 'struct tree_niter_desc' structure.
! Number of iterations before the loop is exited through a given exit can
! be determined using 'number_of_iterations_exit' function.  On RTL, the
! results are returned in 'struct niter_desc' structure.  The
! corresponding function is named 'check_simple_exit'.  There are also
! functions that pass through all the exits of a loop and try to find one
! with easy to determine number of iterations - 'find_loop_niter' on
! GIMPLE and 'find_simple_exit' on RTL.  Finally, there are functions that
! provide the same information, but additionally cache it, so that
! repeated calls to number of iterations are not so costly -
! 'number_of_latch_executions' on GIMPLE and 'get_simple_loop_desc' on
! RTL.
  
   Note that some of these functions may behave slightly differently than
  others - some of them return only the expression for the number of
  iterations, and fail if there are some assumptions.  The function
! 'number_of_latch_executions' works only for single-exit loops.  The
! function 'number_of_cond_exit_executions' can be used to determine
  number of executions of the exit condition of a single-exit loop (i.e.,
! the 'number_of_latch_executions' increased by one).
  
  
  File: gccint.info,  Node: Dependency analysis,  Prev: Number of iterations,  Up: Loop Analysis and Representation
*************** File: gccint.info,  Node: Dependency ana
*** 18543,18563 ****
  =============================
  
  The code for the data dependence analysis can be found in
! `tree-data-ref.c' and its interface and data structures are described
! in `tree-data-ref.h'.  The function that computes the data dependences
! for all the array and pointer references for a given loop is
! `compute_data_dependences_for_loop'.  This function is currently used
! by the linear loop transform and the vectorization passes.  Before
! calling this function, one has to allocate two vectors: a first vector
! will contain the set of data references that are contained in the
! analyzed loop body, and the second vector will contain the dependence
! relations between the data references.  Thus if the vector of data
! references is of size `n', the vector containing the dependence
! relations will contain `n*n' elements.  However if the analyzed loop
! contains side effects, such as calls that potentially can interfere
! with the data references in the current analyzed loop, the analysis
! stops while scanning the loop body for data references, and inserts a
! single `chrec_dont_know' in the dependence relation array.
  
   The data references are discovered in a particular order during the
  scanning of the loop body: the loop body is analyzed in execution order,
--- 18332,18352 ----
  =============================
  
  The code for the data dependence analysis can be found in
! 'tree-data-ref.c' and its interface and data structures are described in
! 'tree-data-ref.h'.  The function that computes the data dependences for
! all the array and pointer references for a given loop is
! 'compute_data_dependences_for_loop'.  This function is currently used by
! the linear loop transform and the vectorization passes.  Before calling
! this function, one has to allocate two vectors: a first vector will
! contain the set of data references that are contained in the analyzed
! loop body, and the second vector will contain the dependence relations
! between the data references.  Thus if the vector of data references is
! of size 'n', the vector containing the dependence relations will contain
! 'n*n' elements.  However if the analyzed loop contains side effects,
! such as calls that potentially can interfere with the data references in
! the current analyzed loop, the analysis stops while scanning the loop
! body for data references, and inserts a single 'chrec_dont_know' in the
! dependence relation array.
  
   The data references are discovered in a particular order during the
  scanning of the loop body: the loop body is analyzed in execution order,
*************** and mapping this order to the elements o
*** 18569,18604 ****
  queries to the loop body representation.
  
   Three types of data references are currently handled: ARRAY_REF,
! INDIRECT_REF and COMPONENT_REF. The data structure for the data
! reference is `data_reference', where `data_reference_p' is a name of a
! pointer to the data reference structure. The structure contains the
  following elements:
  
!    * `base_object_info': Provides information about the base object of
!      the data reference and its access functions. These access functions
!      represent the evolution of the data reference in the loop relative
!      to its base, in keeping with the classical meaning of the data
!      reference access function for the support of arrays. For example,
!      for a reference `a.b[i][j]', the base object is `a.b' and the
!      access functions, one for each array subscript, are: `{i_init, +
!      i_step}_1, {j_init, +, j_step}_2'.
  
!    * `first_location_in_loop': Provides information about the first
       location accessed by the data reference in the loop and about the
       access function used to represent evolution relative to this
!      location. This data is used to support pointers, and is not used
!      for arrays (for which we have base objects). Pointer accesses are
       represented as a one-dimensional access that starts from the first
!      location accessed in the loop. For example:
  
                  for1 i
                     for2 j
                      *((int *)p + i + j) = a[i][j];
  
!      The access function of the pointer access is `{0, + 4B}_for2'
!      relative to `p + i'. The access functions of the array are
!      `{i_init, + i_step}_for1' and `{j_init, +, j_step}_for2' relative
!      to `a'.
  
       Usually, the object the pointer refers to is either unknown, or we
       can't prove that the access is confined to the boundaries of a
--- 18358,18393 ----
  queries to the loop body representation.
  
   Three types of data references are currently handled: ARRAY_REF,
! INDIRECT_REF and COMPONENT_REF.  The data structure for the data
! reference is 'data_reference', where 'data_reference_p' is a name of a
! pointer to the data reference structure.  The structure contains the
  following elements:
  
!    * 'base_object_info': Provides information about the base object of
!      the data reference and its access functions.  These access
!      functions represent the evolution of the data reference in the loop
!      relative to its base, in keeping with the classical meaning of the
!      data reference access function for the support of arrays.  For
!      example, for a reference 'a.b[i][j]', the base object is 'a.b' and
!      the access functions, one for each array subscript, are: '{i_init,
!      + i_step}_1, {j_init, +, j_step}_2'.
  
!    * 'first_location_in_loop': Provides information about the first
       location accessed by the data reference in the loop and about the
       access function used to represent evolution relative to this
!      location.  This data is used to support pointers, and is not used
!      for arrays (for which we have base objects).  Pointer accesses are
       represented as a one-dimensional access that starts from the first
!      location accessed in the loop.  For example:
  
                  for1 i
                     for2 j
                      *((int *)p + i + j) = a[i][j];
  
!      The access function of the pointer access is '{0, + 4B}_for2'
!      relative to 'p + i'.  The access functions of the array are
!      '{i_init, + i_step}_for1' and '{j_init, +, j_step}_for2' relative
!      to 'a'.
  
       Usually, the object the pointer refers to is either unknown, or we
       can't prove that the access is confined to the boundaries of a
*************** following elements:
*** 18609,18665 ****
       references.
  
       The current strategy for data dependence tests is as follows: If
!      both `a' and `b' are represented as arrays, compare
!      `a.base_object' and `b.base_object'; if they are equal, apply
!      dependence tests (use access functions based on base_objects).
!      Else if both `a' and `b' are represented as pointers, compare
!      `a.first_location' and `b.first_location'; if they are equal,
!      apply dependence tests (use access functions based on first
!      location).  However, if `a' and `b' are represented differently,
!      only try to prove that the bases are definitely different.
  
     * Aliasing information.
- 
     * Alignment information.
  
   The structure describing the relation between two data references is
! `data_dependence_relation' and the shorter name for a pointer to such a
! structure is `ddr_p'.  This structure contains:
  
     * a pointer to each data reference,
! 
!    * a tree node `are_dependent' that is set to `chrec_known' if the
       analysis has proved that there is no dependence between these two
!      data references, `chrec_dont_know' if the analysis was not able to
       determine any useful result and potentially there could exist a
!      dependence between these data references, and `are_dependent' is
!      set to `NULL_TREE' if there exist a dependence relation between the
       data references, and the description of this dependence relation is
!      given in the `subscripts', `dir_vects', and `dist_vects' arrays,
! 
     * a boolean that determines whether the dependence relation can be
       represented by a classical distance vector,
! 
!    * an array `subscripts' that contains a description of each
!      subscript of the data references.  Given two array accesses a
!      subscript is the tuple composed of the access functions for a given
!      dimension.  For example, given `A[f1][f2][f3]' and
!      `B[g1][g2][g3]', there are three subscripts: `(f1, g1), (f2, g2),
!      (f3, g3)'.
! 
!    * two arrays `dir_vects' and `dist_vects' that contain classical
!      representations of the data dependences under the form of
!      direction and distance dependence vectors,
! 
!    * an array of loops `loop_nest' that contains the loops to which the
       distance and direction vectors refer to.
  
   Several functions for pretty printing the information extracted by the
! data dependence analysis are available: `dump_ddrs' prints with a
  maximum verbosity the details of a data dependence relations array,
! `dump_dist_dir_vectors' prints only the classical distance and
! direction vectors for a data dependence relations array, and
! `dump_data_references' prints the details of the data references
  contained in a data reference array.
  
  
--- 18398,18447 ----
       references.
  
       The current strategy for data dependence tests is as follows: If
!      both 'a' and 'b' are represented as arrays, compare 'a.base_object'
!      and 'b.base_object'; if they are equal, apply dependence tests (use
!      access functions based on base_objects).  Else if both 'a' and 'b'
!      are represented as pointers, compare 'a.first_location' and
!      'b.first_location'; if they are equal, apply dependence tests (use
!      access functions based on first location).  However, if 'a' and 'b'
!      are represented differently, only try to prove that the bases are
!      definitely different.
  
     * Aliasing information.
     * Alignment information.
  
   The structure describing the relation between two data references is
! 'data_dependence_relation' and the shorter name for a pointer to such a
! structure is 'ddr_p'.  This structure contains:
  
     * a pointer to each data reference,
!    * a tree node 'are_dependent' that is set to 'chrec_known' if the
       analysis has proved that there is no dependence between these two
!      data references, 'chrec_dont_know' if the analysis was not able to
       determine any useful result and potentially there could exist a
!      dependence between these data references, and 'are_dependent' is
!      set to 'NULL_TREE' if there exist a dependence relation between the
       data references, and the description of this dependence relation is
!      given in the 'subscripts', 'dir_vects', and 'dist_vects' arrays,
     * a boolean that determines whether the dependence relation can be
       represented by a classical distance vector,
!    * an array 'subscripts' that contains a description of each subscript
!      of the data references.  Given two array accesses a subscript is
!      the tuple composed of the access functions for a given dimension.
!      For example, given 'A[f1][f2][f3]' and 'B[g1][g2][g3]', there are
!      three subscripts: '(f1, g1), (f2, g2), (f3, g3)'.
!    * two arrays 'dir_vects' and 'dist_vects' that contain classical
!      representations of the data dependences under the form of direction
!      and distance dependence vectors,
!    * an array of loops 'loop_nest' that contains the loops to which the
       distance and direction vectors refer to.
  
   Several functions for pretty printing the information extracted by the
! data dependence analysis are available: 'dump_ddrs' prints with a
  maximum verbosity the details of a data dependence relations array,
! 'dump_dist_dir_vectors' prints only the classical distance and direction
! vectors for a data dependence relations array, and
! 'dump_data_references' prints the details of the data references
  contained in a data reference array.
  
  
*************** File: gccint.info,  Node: Machine Desc,
*** 18669,18677 ****
  ***********************
  
  A machine description has two parts: a file of instruction patterns
! (`.md' file) and a C header file of macro definitions.
  
!  The `.md' file for a target machine contains a pattern for each
  instruction that the target machine supports (or at least each
  instruction that is worth telling the compiler about).  It may also
  contain comments.  A semicolon causes the rest of the line to be a
--- 18451,18459 ----
  ***********************
  
  A machine description has two parts: a file of instruction patterns
! ('.md' file) and a C header file of macro definitions.
  
!  The '.md' file for a target machine contains a pattern for each
  instruction that the target machine supports (or at least each
  instruction that is worth telling the compiler about).  It may also
  contain comments.  A semicolon causes the rest of the line to be a
*************** comment, unless the semicolon is inside
*** 18683,18689 ****
  
  * Overview::            How the machine description is used.
  * Patterns::            How to write instruction patterns.
! * Example::             An explained example of a `define_insn' pattern.
  * RTL Template::        The RTL template defines what insns match a pattern.
  * Output Template::     The output template says how to make assembler code
                          from such an insn.
--- 18465,18471 ----
  
  * Overview::            How the machine description is used.
  * Patterns::            How to write instruction patterns.
! * Example::             An explained example of a 'define_insn' pattern.
  * RTL Template::        The RTL template defines what insns match a pattern.
  * Output Template::     The output template says how to make assembler code
                          from such an insn.
*************** comment, unless the semicolon is inside
*** 18704,18712 ****
  * Including Patterns::  Including Patterns in Machine Descriptions.
  * Peephole Definitions::Defining machine-specific peephole optimizations.
  * Insn Attributes::     Specifying the value of attributes for generated insns.
! * Conditional Execution::Generating `define_insn' patterns for
                           predication.
! * Define Subst::	Generating `define_insn' and `define_expand'
  			patterns from other patterns.
  * Constant Definitions::Defining symbolic constants that can be used in the
                          md file.
--- 18486,18494 ----
  * Including Patterns::  Including Patterns in Machine Descriptions.
  * Peephole Definitions::Defining machine-specific peephole optimizations.
  * Insn Attributes::     Specifying the value of attributes for generated insns.
! * Conditional Execution::Generating 'define_insn' patterns for
                           predication.
! * Define Subst::	Generating 'define_insn' and 'define_expand'
  			patterns from other patterns.
  * Constant Definitions::Defining symbolic constants that can be used in the
                          md file.
*************** There are three main conversions that ha
*** 18728,18759 ****
    3. The insn list is matched against the RTL templates to produce
       assembler code.
  
- 
   For the generate pass, only the names of the insns matter, from either
! a named `define_insn' or a `define_expand'.  The compiler will choose
  the pattern with the right name and apply the operands according to the
! documentation later in this chapter, without regard for the RTL
! template or operand constraints.  Note that the names the compiler looks
! for are hard-coded in the compiler--it will ignore unnamed patterns and
! patterns with names it doesn't know about, but if you don't provide a
! named pattern it needs, it will abort.
  
!  If a `define_insn' is used, the template given is inserted into the
! insn list.  If a `define_expand' is used, one of three things happens,
  based on the condition logic.  The condition logic may manually create
! new insns for the insn list, say via `emit_insn()', and invoke `DONE'.
! For certain named patterns, it may invoke `FAIL' to tell the compiler
! to use an alternate way of performing that task.  If it invokes neither
! `DONE' nor `FAIL', the template given in the pattern is inserted, as if
! the `define_expand' were a `define_insn'.
  
   Once the insn list is generated, various optimization passes convert,
  replace, and rearrange the insns in the insn list.  This is where the
! `define_split' and `define_peephole' patterns get used, for example.
  
   Finally, the insn list's RTL is matched up with the RTL templates in
! the `define_insn' patterns, and those patterns are used to emit the
! final assembly code.  For this purpose, each named `define_insn' acts
  like it's unnamed, since the names are ignored.
  
  
--- 18510,18540 ----
    3. The insn list is matched against the RTL templates to produce
       assembler code.
  
   For the generate pass, only the names of the insns matter, from either
! a named 'define_insn' or a 'define_expand'.  The compiler will choose
  the pattern with the right name and apply the operands according to the
! documentation later in this chapter, without regard for the RTL template
! or operand constraints.  Note that the names the compiler looks for are
! hard-coded in the compiler--it will ignore unnamed patterns and patterns
! with names it doesn't know about, but if you don't provide a named
! pattern it needs, it will abort.
  
!  If a 'define_insn' is used, the template given is inserted into the
! insn list.  If a 'define_expand' is used, one of three things happens,
  based on the condition logic.  The condition logic may manually create
! new insns for the insn list, say via 'emit_insn()', and invoke 'DONE'.
! For certain named patterns, it may invoke 'FAIL' to tell the compiler to
! use an alternate way of performing that task.  If it invokes neither
! 'DONE' nor 'FAIL', the template given in the pattern is inserted, as if
! the 'define_expand' were a 'define_insn'.
  
   Once the insn list is generated, various optimization passes convert,
  replace, and rearrange the insns in the insn list.  This is where the
! 'define_split' and 'define_peephole' patterns get used, for example.
  
   Finally, the insn list's RTL is matched up with the RTL templates in
! the 'define_insn' patterns, and those patterns are used to emit the
! final assembly code.  For this purpose, each named 'define_insn' acts
  like it's unnamed, since the names are ignored.
  
  
*************** File: gccint.info,  Node: Patterns,  Nex
*** 18762,18820 ****
  16.2 Everything about Instruction Patterns
  ==========================================
  
! A `define_insn' expression is used to define instruction patterns to
! which insns may be matched.  A `define_insn' expression contains an
  incomplete RTL expression, with pieces to be filled in later, operand
  constraints that restrict how the pieces can be filled in, and an output
  template or C code to generate the assembler output.
  
!  A `define_insn' is an RTL expression containing four or five operands:
  
    1. An optional name.  The presence of a name indicate that this
       instruction pattern can perform a certain standard job for the
!      RTL-generation pass of the compiler.  This pass knows certain
!      names and will use the instruction patterns with those names, if
!      the names are defined in the machine description.
  
!      The absence of a name is indicated by writing an empty string
!      where the name should go.  Nameless instruction patterns are never
!      used for generating RTL code, but they may permit several simpler
!      insns to be combined later on.
  
       Names that are not thus known and used in RTL-generation have no
       effect; they are equivalent to no name at all.
  
       For the purpose of debugging the compiler, you may also specify a
!      name beginning with the `*' character.  Such a name is used only
       for identifying the instruction in RTL dumps; it is equivalent to
       having a nameless pattern for all other purposes.  Names beginning
!      with the `*' character are not required to be unique.
  
    2. The "RTL template": This is a vector of incomplete RTL expressions
       which describe the semantics of the instruction (*note RTL
       Template::).  It is incomplete because it may contain
!      `match_operand', `match_operator', and `match_dup' expressions
!      that stand for operands of the instruction.
  
!      If the vector has multiple elements, the RTL template is treated
!      as a `parallel' expression.
  
    3. The condition: This is a string which contains a C expression.
       When the compiler attempts to match RTL against a pattern, the
!      condition is evaluated.  If the condition evaluates to `true', the
!      match is permitted.  The condition may be an empty string, which
!      is treated as always `true'.
  
       For a named pattern, the condition may not depend on the data in
       the insn being matched, but only the target-machine-type flags.
       The compiler needs to test these conditions during initialization
!      in order to learn exactly which named instructions are available
!      in a particular run.
  
       For nameless patterns, the condition is applied only when matching
       an individual insn, and only after the insn has matched the
       pattern's recognition template.  The insn's operands may be found
!      in the vector `operands'.
  
       For an insn where the condition has once matched, it cannot later
       be used to control register allocation by excluding certain
--- 18543,18601 ----
  16.2 Everything about Instruction Patterns
  ==========================================
  
! A 'define_insn' expression is used to define instruction patterns to
! which insns may be matched.  A 'define_insn' expression contains an
  incomplete RTL expression, with pieces to be filled in later, operand
  constraints that restrict how the pieces can be filled in, and an output
  template or C code to generate the assembler output.
  
!  A 'define_insn' is an RTL expression containing four or five operands:
  
    1. An optional name.  The presence of a name indicate that this
       instruction pattern can perform a certain standard job for the
!      RTL-generation pass of the compiler.  This pass knows certain names
!      and will use the instruction patterns with those names, if the
!      names are defined in the machine description.
  
!      The absence of a name is indicated by writing an empty string where
!      the name should go.  Nameless instruction patterns are never used
!      for generating RTL code, but they may permit several simpler insns
!      to be combined later on.
  
       Names that are not thus known and used in RTL-generation have no
       effect; they are equivalent to no name at all.
  
       For the purpose of debugging the compiler, you may also specify a
!      name beginning with the '*' character.  Such a name is used only
       for identifying the instruction in RTL dumps; it is equivalent to
       having a nameless pattern for all other purposes.  Names beginning
!      with the '*' character are not required to be unique.
  
    2. The "RTL template": This is a vector of incomplete RTL expressions
       which describe the semantics of the instruction (*note RTL
       Template::).  It is incomplete because it may contain
!      'match_operand', 'match_operator', and 'match_dup' expressions that
!      stand for operands of the instruction.
  
!      If the vector has multiple elements, the RTL template is treated as
!      a 'parallel' expression.
  
    3. The condition: This is a string which contains a C expression.
       When the compiler attempts to match RTL against a pattern, the
!      condition is evaluated.  If the condition evaluates to 'true', the
!      match is permitted.  The condition may be an empty string, which is
!      treated as always 'true'.
  
       For a named pattern, the condition may not depend on the data in
       the insn being matched, but only the target-machine-type flags.
       The compiler needs to test these conditions during initialization
!      in order to learn exactly which named instructions are available in
!      a particular run.
  
       For nameless patterns, the condition is applied only when matching
       an individual insn, and only after the insn has matched the
       pattern's recognition template.  The insn's operands may be found
!      in the vector 'operands'.
  
       For an insn where the condition has once matched, it cannot later
       be used to control register allocation by excluding certain
*************** template or C code to generate the assem
*** 18833,18839 ****
  
  File: gccint.info,  Node: Example,  Next: RTL Template,  Prev: Patterns,  Up: Machine Desc
  
! 16.3 Example of `define_insn'
  =============================
  
  Here is an example of an instruction pattern, taken from the machine
--- 18614,18620 ----
  
  File: gccint.info,  Node: Example,  Next: RTL Template,  Prev: Patterns,  Up: Machine Desc
  
! 16.3 Example of 'define_insn'
  =============================
  
  Here is an example of an instruction pattern, taken from the machine
*************** This can also be written using braced st
*** 18865,18871 ****
   This describes an instruction which sets the condition codes based on
  the value of a general operand.  It has no condition, so any insn with
  an RTL description of the form shown may be matched to this pattern.
! The name `tstsi' means "test a `SImode' value" and tells the RTL
  generation pass that, when it is necessary to test such a value, an insn
  to do so can be constructed using this pattern.
  
--- 18646,18652 ----
   This describes an instruction which sets the condition codes based on
  the value of a general operand.  It has no condition, so any insn with
  an RTL description of the form shown may be matched to this pattern.
! The name 'tstsi' means "test a 'SImode' value" and tells the RTL
  generation pass that, when it is necessary to test such a value, an insn
  to do so can be constructed using this pattern.
  
*************** to do so can be constructed using this p
*** 18873,18879 ****
  output template to return based on the kind of operand and the specific
  type of CPU for which code is being generated.
  
!  `"rm"' is an operand constraint.  Its meaning is explained below.
  
  
  File: gccint.info,  Node: RTL Template,  Next: Output Template,  Prev: Example,  Up: Machine Desc
--- 18654,18660 ----
  output template to return based on the kind of operand and the specific
  type of CPU for which code is being generated.
  
!  '"rm"' is an operand constraint.  Its meaning is explained below.
  
  
  File: gccint.info,  Node: RTL Template,  Next: Output Template,  Prev: Example,  Up: Machine Desc
*************** the operands in the insn being matched.
*** 18891,18988 ****
  controlled by special expression types that direct matching and
  substitution of the operands.
  
! `(match_operand:M N PREDICATE CONSTRAINT)'
       This expression is a placeholder for operand number N of the insn.
       When constructing an insn, operand number N will be substituted at
       this point.  When matching an insn, whatever appears at this
!      position in the insn will be taken as operand number N; but it
!      must satisfy PREDICATE or this instruction pattern will not match
!      at all.
  
       Operand numbers must be chosen consecutively counting from zero in
!      each instruction pattern.  There may be only one `match_operand'
       expression in the pattern for each operand number.  Usually
!      operands are numbered in the order of appearance in `match_operand'
!      expressions.  In the case of a `define_expand', any operand numbers
!      used only in `match_dup' expressions have higher values than all
       other operand numbers.
  
       PREDICATE is a string that is the name of a function that accepts
       two arguments, an expression and a machine mode.  *Note
       Predicates::.  During matching, the function will be called with
       the putative operand as the expression and M as the mode argument
!      (if M is not specified, `VOIDmode' will be used, which normally
       causes PREDICATE to accept any mode).  If it returns zero, this
       instruction pattern fails to match.  PREDICATE may be an empty
       string; then it means no test is to be done on the operand, so
       anything which occurs in this position is valid.
  
!      Most of the time, PREDICATE will reject modes other than M--but
!      not always.  For example, the predicate `address_operand' uses M
!      as the mode of memory ref that the address should be valid for.
!      Many predicates accept `const_int' nodes even though their mode is
!      `VOIDmode'.
  
       CONSTRAINT controls reloading and the choice of the best register
       class to use for a value, as explained later (*note Constraints::).
       If the constraint would be an empty string, it can be omitted.
  
       People are often unclear on the difference between the constraint
!      and the predicate.  The predicate helps decide whether a given
!      insn matches the pattern.  The constraint plays no role in this
       decision; instead, it controls various decisions in the case of an
       insn which does match.
  
! `(match_scratch:M N CONSTRAINT)'
       This expression is also a placeholder for operand number N and
!      indicates that operand must be a `scratch' or `reg' expression.
  
       When matching patterns, this is equivalent to
  
            (match_operand:M N "scratch_operand" CONSTRAINT)
  
!      but, when generating RTL, it produces a (`scratch':M) expression.
  
!      If the last few expressions in a `parallel' are `clobber'
       expressions whose operands are either a hard register or
!      `match_scratch', the combiner can add or delete them when
       necessary.  *Note Side Effects::.
  
! `(match_dup N)'
       This expression is also a placeholder for operand number N.  It is
       used when the operand needs to appear more than once in the insn.
  
!      In construction, `match_dup' acts just like `match_operand': the
       operand is substituted into the insn being constructed.  But in
!      matching, `match_dup' behaves differently.  It assumes that operand
!      number N has already been determined by a `match_operand'
!      appearing earlier in the recognition template, and it matches only
!      an identical-looking expression.
  
!      Note that `match_dup' should not be used to tell the compiler that
       a particular register is being used for two operands (example:
!      `add' that adds one register to another; the second register is
       both an input operand and the output operand).  Use a matching
!      constraint (*note Simple Constraints::) for those.  `match_dup' is
       for the cases where one operand is used in two places in the
       template, such as an instruction that computes both a quotient and
       a remainder, where the opcode takes two input operands but the RTL
!      template has to refer to each of those twice; once for the
!      quotient pattern and once for the remainder pattern.
  
! `(match_operator:M N PREDICATE [OPERANDS...])'
       This pattern is a kind of placeholder for a variable RTL expression
       code.
  
       When constructing an insn, it stands for an RTL expression whose
!      expression code is taken from that of operand N, and whose
!      operands are constructed from the patterns OPERANDS.
  
       When matching an expression, it matches an expression if the
       function PREDICATE returns nonzero on that expression _and_ the
       patterns OPERANDS match the operands of the expression.
  
!      Suppose that the function `commutative_operator' is defined as
       follows, to match any expression whose operator is one of the
       commutative arithmetic operators of RTL and whose mode is MODE:
  
--- 18672,18769 ----
  controlled by special expression types that direct matching and
  substitution of the operands.
  
! '(match_operand:M N PREDICATE CONSTRAINT)'
       This expression is a placeholder for operand number N of the insn.
       When constructing an insn, operand number N will be substituted at
       this point.  When matching an insn, whatever appears at this
!      position in the insn will be taken as operand number N; but it must
!      satisfy PREDICATE or this instruction pattern will not match at
!      all.
  
       Operand numbers must be chosen consecutively counting from zero in
!      each instruction pattern.  There may be only one 'match_operand'
       expression in the pattern for each operand number.  Usually
!      operands are numbered in the order of appearance in 'match_operand'
!      expressions.  In the case of a 'define_expand', any operand numbers
!      used only in 'match_dup' expressions have higher values than all
       other operand numbers.
  
       PREDICATE is a string that is the name of a function that accepts
       two arguments, an expression and a machine mode.  *Note
       Predicates::.  During matching, the function will be called with
       the putative operand as the expression and M as the mode argument
!      (if M is not specified, 'VOIDmode' will be used, which normally
       causes PREDICATE to accept any mode).  If it returns zero, this
       instruction pattern fails to match.  PREDICATE may be an empty
       string; then it means no test is to be done on the operand, so
       anything which occurs in this position is valid.
  
!      Most of the time, PREDICATE will reject modes other than M--but not
!      always.  For example, the predicate 'address_operand' uses M as the
!      mode of memory ref that the address should be valid for.  Many
!      predicates accept 'const_int' nodes even though their mode is
!      'VOIDmode'.
  
       CONSTRAINT controls reloading and the choice of the best register
       class to use for a value, as explained later (*note Constraints::).
       If the constraint would be an empty string, it can be omitted.
  
       People are often unclear on the difference between the constraint
!      and the predicate.  The predicate helps decide whether a given insn
!      matches the pattern.  The constraint plays no role in this
       decision; instead, it controls various decisions in the case of an
       insn which does match.
  
! '(match_scratch:M N CONSTRAINT)'
       This expression is also a placeholder for operand number N and
!      indicates that operand must be a 'scratch' or 'reg' expression.
  
       When matching patterns, this is equivalent to
  
            (match_operand:M N "scratch_operand" CONSTRAINT)
  
!      but, when generating RTL, it produces a ('scratch':M) expression.
  
!      If the last few expressions in a 'parallel' are 'clobber'
       expressions whose operands are either a hard register or
!      'match_scratch', the combiner can add or delete them when
       necessary.  *Note Side Effects::.
  
! '(match_dup N)'
       This expression is also a placeholder for operand number N.  It is
       used when the operand needs to appear more than once in the insn.
  
!      In construction, 'match_dup' acts just like 'match_operand': the
       operand is substituted into the insn being constructed.  But in
!      matching, 'match_dup' behaves differently.  It assumes that operand
!      number N has already been determined by a 'match_operand' appearing
!      earlier in the recognition template, and it matches only an
!      identical-looking expression.
  
!      Note that 'match_dup' should not be used to tell the compiler that
       a particular register is being used for two operands (example:
!      'add' that adds one register to another; the second register is
       both an input operand and the output operand).  Use a matching
!      constraint (*note Simple Constraints::) for those.  'match_dup' is
       for the cases where one operand is used in two places in the
       template, such as an instruction that computes both a quotient and
       a remainder, where the opcode takes two input operands but the RTL
!      template has to refer to each of those twice; once for the quotient
!      pattern and once for the remainder pattern.
  
! '(match_operator:M N PREDICATE [OPERANDS...])'
       This pattern is a kind of placeholder for a variable RTL expression
       code.
  
       When constructing an insn, it stands for an RTL expression whose
!      expression code is taken from that of operand N, and whose operands
!      are constructed from the patterns OPERANDS.
  
       When matching an expression, it matches an expression if the
       function PREDICATE returns nonzero on that expression _and_ the
       patterns OPERANDS match the operands of the expression.
  
!      Suppose that the function 'commutative_operator' is defined as
       follows, to match any expression whose operator is one of the
       commutative arithmetic operators of RTL and whose mode is MODE:
  
*************** substitution of the operands.
*** 19005,19070 ****
              [(match_operand:SI 1 "general_operand" "g")
               (match_operand:SI 2 "general_operand" "g")])
  
!      Here the vector `[OPERANDS...]' contains two patterns because the
       expressions to be matched all contain two operands.
  
       When this pattern does match, the two operands of the commutative
       operator are recorded as operands 1 and 2 of the insn.  (This is
!      done by the two instances of `match_operand'.)  Operand 3 of the
!      insn will be the entire commutative expression: use `GET_CODE
       (operands[3])' to see which commutative operator was used.
  
!      The machine mode M of `match_operator' works like that of
!      `match_operand': it is passed as the second argument to the
       predicate function, and that function is solely responsible for
       deciding whether the expression to be matched "has" that mode.
  
       When constructing an insn, argument 3 of the gen-function will
!      specify the operation (i.e. the expression code) for the
!      expression to be made.  It should be an RTL expression, whose
!      expression code is copied into a new expression whose operands are
!      arguments 1 and 2 of the gen-function.  The subexpressions of
!      argument 3 are not used; only its expression code matters.
  
!      When `match_operator' is used in a pattern for matching an insn,
!      it usually best if the operand number of the `match_operator' is
       higher than that of the actual operands of the insn.  This improves
       register allocation because the register allocator often looks at
       operands 1 and 2 of insns to see if it can do register tying.
  
!      There is no way to specify constraints in `match_operator'.  The
!      operand of the insn which corresponds to the `match_operator'
!      never has any constraints because it is never reloaded as a whole.
!      However, if parts of its OPERANDS are matched by `match_operand'
       patterns, those parts may have constraints of their own.
  
! `(match_op_dup:M N[OPERANDS...])'
!      Like `match_dup', except that it applies to operators instead of
       operands.  When constructing an insn, operand number N will be
!      substituted at this point.  But in matching, `match_op_dup' behaves
       differently.  It assumes that operand number N has already been
!      determined by a `match_operator' appearing earlier in the
       recognition template, and it matches only an identical-looking
       expression.
  
! `(match_parallel N PREDICATE [SUBPAT...])'
       This pattern is a placeholder for an insn that consists of a
!      `parallel' expression with a variable number of elements.  This
       expression should only appear at the top level of an insn pattern.
  
       When constructing an insn, operand number N will be substituted at
       this point.  When matching an insn, it matches if the body of the
!      insn is a `parallel' expression with at least as many elements as
!      the vector of SUBPAT expressions in the `match_parallel', if each
!      SUBPAT matches the corresponding element of the `parallel', _and_
!      the function PREDICATE returns nonzero on the `parallel' that is
!      the body of the insn.  It is the responsibility of the predicate
!      to validate elements of the `parallel' beyond those listed in the
!      `match_parallel'.
  
!      A typical use of `match_parallel' is to match load and store
       multiple expressions, which can contain a variable number of
!      elements in a `parallel'.  For example,
  
            (define_insn ""
              [(match_parallel 0 "load_multiple_operation"
--- 18786,18851 ----
              [(match_operand:SI 1 "general_operand" "g")
               (match_operand:SI 2 "general_operand" "g")])
  
!      Here the vector '[OPERANDS...]' contains two patterns because the
       expressions to be matched all contain two operands.
  
       When this pattern does match, the two operands of the commutative
       operator are recorded as operands 1 and 2 of the insn.  (This is
!      done by the two instances of 'match_operand'.)  Operand 3 of the
!      insn will be the entire commutative expression: use 'GET_CODE
       (operands[3])' to see which commutative operator was used.
  
!      The machine mode M of 'match_operator' works like that of
!      'match_operand': it is passed as the second argument to the
       predicate function, and that function is solely responsible for
       deciding whether the expression to be matched "has" that mode.
  
       When constructing an insn, argument 3 of the gen-function will
!      specify the operation (i.e. the expression code) for the expression
!      to be made.  It should be an RTL expression, whose expression code
!      is copied into a new expression whose operands are arguments 1 and
!      2 of the gen-function.  The subexpressions of argument 3 are not
!      used; only its expression code matters.
  
!      When 'match_operator' is used in a pattern for matching an insn, it
!      usually best if the operand number of the 'match_operator' is
       higher than that of the actual operands of the insn.  This improves
       register allocation because the register allocator often looks at
       operands 1 and 2 of insns to see if it can do register tying.
  
!      There is no way to specify constraints in 'match_operator'.  The
!      operand of the insn which corresponds to the 'match_operator' never
!      has any constraints because it is never reloaded as a whole.
!      However, if parts of its OPERANDS are matched by 'match_operand'
       patterns, those parts may have constraints of their own.
  
! '(match_op_dup:M N[OPERANDS...])'
!      Like 'match_dup', except that it applies to operators instead of
       operands.  When constructing an insn, operand number N will be
!      substituted at this point.  But in matching, 'match_op_dup' behaves
       differently.  It assumes that operand number N has already been
!      determined by a 'match_operator' appearing earlier in the
       recognition template, and it matches only an identical-looking
       expression.
  
! '(match_parallel N PREDICATE [SUBPAT...])'
       This pattern is a placeholder for an insn that consists of a
!      'parallel' expression with a variable number of elements.  This
       expression should only appear at the top level of an insn pattern.
  
       When constructing an insn, operand number N will be substituted at
       this point.  When matching an insn, it matches if the body of the
!      insn is a 'parallel' expression with at least as many elements as
!      the vector of SUBPAT expressions in the 'match_parallel', if each
!      SUBPAT matches the corresponding element of the 'parallel', _and_
!      the function PREDICATE returns nonzero on the 'parallel' that is
!      the body of the insn.  It is the responsibility of the predicate to
!      validate elements of the 'parallel' beyond those listed in the
!      'match_parallel'.
  
!      A typical use of 'match_parallel' is to match load and store
       multiple expressions, which can contain a variable number of
!      elements in a 'parallel'.  For example,
  
            (define_insn ""
              [(match_parallel 0 "load_multiple_operation"
*************** substitution of the operands.
*** 19075,19083 ****
              ""
              "loadm 0,0,%1,%2")
  
!      This example comes from `a29k.md'.  The function
!      `load_multiple_operation' is defined in `a29k.c' and checks that
!      subsequent elements in the `parallel' are the same as the `set' in
       the pattern, except that they are referencing subsequent registers
       and memory locations.
  
--- 18856,18864 ----
              ""
              "loadm 0,0,%1,%2")
  
!      This example comes from 'a29k.md'.  The function
!      'load_multiple_operation' is defined in 'a29k.c' and checks that
!      subsequent elements in the 'parallel' are the same as the 'set' in
       the pattern, except that they are referencing subsequent registers
       and memory locations.
  
*************** substitution of the operands.
*** 19094,19103 ****
                   (mem:SI (plus:SI (reg:SI 100)
                                    (const_int 8))))])
  
! `(match_par_dup N [SUBPAT...])'
!      Like `match_op_dup', but for `match_parallel' instead of
!      `match_operator'.
! 
  
  
  File: gccint.info,  Node: Output Template,  Next: Output Statement,  Prev: RTL Template,  Up: Machine Desc
--- 18875,18883 ----
                   (mem:SI (plus:SI (reg:SI 100)
                                    (const_int 8))))])
  
! '(match_par_dup N [SUBPAT...])'
!      Like 'match_op_dup', but for 'match_parallel' instead of
!      'match_operator'.
  
  
  File: gccint.info,  Node: Output Template,  Next: Output Statement,  Prev: RTL Template,  Up: Machine Desc
*************** File: gccint.info,  Node: Output Templat
*** 19107,19181 ****
  
  The "output template" is a string which specifies how to output the
  assembler code for an instruction pattern.  Most of the template is a
! fixed string which is output literally.  The character `%' is used to
  specify where to substitute an operand; it can also be used to identify
  places where different variants of the assembler require different
  syntax.
  
!  In the simplest case, a `%' followed by a digit N says to output
  operand N at that point in the string.
  
!  `%' followed by a letter and a digit says to output an operand in an
  alternate fashion.  Four letters have standard, built-in meanings
! described below.  The machine description macro `PRINT_OPERAND' can
  define additional letters with nonstandard meanings.
  
!  `%cDIGIT' can be used to substitute an operand that is a constant
! value without the syntax that normally indicates an immediate operand.
  
!  `%nDIGIT' is like `%cDIGIT' except that the value of the constant is
  negated before printing.
  
!  `%aDIGIT' can be used to substitute an operand as if it were a memory
  reference, with the actual operand treated as the address.  This may be
  useful when outputting a "load address" instruction, because often the
  assembler syntax for such an instruction requires you to write the
  operand as if it were a memory reference.
  
!  `%lDIGIT' is used to substitute a `label_ref' into a jump instruction.
  
!  `%=' outputs a number which is unique to each instruction in the
! entire compilation.  This is useful for making local labels to be
! referred to more than once in a single template that generates multiple
! assembler instructions.
  
!  `%' followed by a punctuation character specifies a substitution that
! does not use an operand.  Only one case is standard: `%%' outputs a `%'
  into the assembler code.  Other nonstandard cases can be defined in the
! `PRINT_OPERAND' macro.  You must also define which punctuation
! characters are valid with the `PRINT_OPERAND_PUNCT_VALID_P' macro.
  
   The template may generate multiple assembler instructions.  Write the
! text for the instructions, with `\;' between them.
  
   When the RTL contains two operands which are required by constraint to
  match each other, the output template must refer only to the
! lower-numbered operand.  Matching operands are not always identical,
! and the rest of the compiler arranges to put the proper RTL expression
! for printing into the lower-numbered operand.
  
!  One use of nonstandard letters or punctuation following `%' is to
  distinguish between different assembler languages for the same machine;
  for example, Motorola syntax versus MIT syntax for the 68000.  Motorola
! syntax requires periods in most opcode names, while MIT syntax does
! not.  For example, the opcode `movel' in MIT syntax is `move.l' in
! Motorola syntax.  The same file of patterns is used for both kinds of
! output syntax, but the character sequence `%.' is used in each place
! where Motorola syntax wants a period.  The `PRINT_OPERAND' macro for
! Motorola syntax defines the sequence to output a period; the macro for
! MIT syntax defines it to do nothing.
  
!  As a special case, a template consisting of the single character `#'
  instructs the compiler to first split the insn, and then output the
  resulting instructions separately.  This helps eliminate redundancy in
! the output templates.   If you have a `define_insn' that needs to emit
! multiple assembler instructions, and there is a matching `define_split'
! already defined, then you can simply use `#' as the output template
  instead of writing an output template that emits the multiple assembler
  instructions.
  
!  If the macro `ASSEMBLER_DIALECT' is defined, you can use construct of
! the form `{option0|option1|option2}' in the templates.  These describe
  multiple variants of assembler language syntax.  *Note Instruction
  Output::.
  
--- 18887,18961 ----
  
  The "output template" is a string which specifies how to output the
  assembler code for an instruction pattern.  Most of the template is a
! fixed string which is output literally.  The character '%' is used to
  specify where to substitute an operand; it can also be used to identify
  places where different variants of the assembler require different
  syntax.
  
!  In the simplest case, a '%' followed by a digit N says to output
  operand N at that point in the string.
  
!  '%' followed by a letter and a digit says to output an operand in an
  alternate fashion.  Four letters have standard, built-in meanings
! described below.  The machine description macro 'PRINT_OPERAND' can
  define additional letters with nonstandard meanings.
  
!  '%cDIGIT' can be used to substitute an operand that is a constant value
! without the syntax that normally indicates an immediate operand.
  
!  '%nDIGIT' is like '%cDIGIT' except that the value of the constant is
  negated before printing.
  
!  '%aDIGIT' can be used to substitute an operand as if it were a memory
  reference, with the actual operand treated as the address.  This may be
  useful when outputting a "load address" instruction, because often the
  assembler syntax for such an instruction requires you to write the
  operand as if it were a memory reference.
  
!  '%lDIGIT' is used to substitute a 'label_ref' into a jump instruction.
  
!  '%=' outputs a number which is unique to each instruction in the entire
! compilation.  This is useful for making local labels to be referred to
! more than once in a single template that generates multiple assembler
! instructions.
  
!  '%' followed by a punctuation character specifies a substitution that
! does not use an operand.  Only one case is standard: '%%' outputs a '%'
  into the assembler code.  Other nonstandard cases can be defined in the
! 'PRINT_OPERAND' macro.  You must also define which punctuation
! characters are valid with the 'PRINT_OPERAND_PUNCT_VALID_P' macro.
  
   The template may generate multiple assembler instructions.  Write the
! text for the instructions, with '\;' between them.
  
   When the RTL contains two operands which are required by constraint to
  match each other, the output template must refer only to the
! lower-numbered operand.  Matching operands are not always identical, and
! the rest of the compiler arranges to put the proper RTL expression for
! printing into the lower-numbered operand.
  
!  One use of nonstandard letters or punctuation following '%' is to
  distinguish between different assembler languages for the same machine;
  for example, Motorola syntax versus MIT syntax for the 68000.  Motorola
! syntax requires periods in most opcode names, while MIT syntax does not.
! For example, the opcode 'movel' in MIT syntax is 'move.l' in Motorola
! syntax.  The same file of patterns is used for both kinds of output
! syntax, but the character sequence '%.' is used in each place where
! Motorola syntax wants a period.  The 'PRINT_OPERAND' macro for Motorola
! syntax defines the sequence to output a period; the macro for MIT syntax
! defines it to do nothing.
  
!  As a special case, a template consisting of the single character '#'
  instructs the compiler to first split the insn, and then output the
  resulting instructions separately.  This helps eliminate redundancy in
! the output templates.  If you have a 'define_insn' that needs to emit
! multiple assembler instructions, and there is a matching 'define_split'
! already defined, then you can simply use '#' as the output template
  instead of writing an output template that emits the multiple assembler
  instructions.
  
!  If the macro 'ASSEMBLER_DIALECT' is defined, you can use construct of
! the form '{option0|option1|option2}' in the templates.  These describe
  multiple variants of assembler language syntax.  *Note Instruction
  Output::.
  
*************** single instruction pattern.  For example
*** 19191,19203 ****
  kinds of operands; or some unfortunate combinations of operands may
  require extra machine instructions.
  
!  If the output control string starts with a `@', then it is actually a
  series of templates, each on a separate line.  (Blank lines and leading
! spaces and tabs are ignored.)  The templates correspond to the
! pattern's constraint alternatives (*note Multi-Alternative::).  For
! example, if a target machine has a two-address add instruction `addr'
! to add into a register and another `addm' to add a register to memory,
! you might write this pattern:
  
       (define_insn "addsi3"
         [(set (match_operand:SI 0 "general_operand" "=r,m")
--- 18971,18983 ----
  kinds of operands; or some unfortunate combinations of operands may
  require extra machine instructions.
  
!  If the output control string starts with a '@', then it is actually a
  series of templates, each on a separate line.  (Blank lines and leading
! spaces and tabs are ignored.)  The templates correspond to the pattern's
! constraint alternatives (*note Multi-Alternative::).  For example, if a
! target machine has a two-address add instruction 'addr' to add into a
! register and another 'addm' to add a register to memory, you might write
! this pattern:
  
       (define_insn "addsi3"
         [(set (match_operand:SI 0 "general_operand" "=r,m")
*************** you might write this pattern:
*** 19208,19253 ****
          addr %2,%0
          addm %2,%0")
  
!  If the output control string starts with a `*', then it is not an
  output template but rather a piece of C program that should compute a
! template.  It should execute a `return' statement to return the
  template-string you want.  Most such templates use C string literals,
  which require doublequote characters to delimit them.  To include these
! doublequote characters in the string, prefix each one with `\'.
  
   If the output control string is written as a brace block instead of a
  double-quoted string, it is automatically assumed to be C code.  In that
  case, it is not necessary to put in a leading asterisk, or to escape the
  doublequotes surrounding C string literals.
  
!  The operands may be found in the array `operands', whose C data type
! is `rtx []'.
  
   It is very common to select different ways of generating assembler code
  based on whether an immediate operand is within a certain range.  Be
! careful when doing this, because the result of `INTVAL' is an integer
! on the host machine.  If the host machine has more bits in an `int'
! than the target machine has in the mode in which the constant will be
! used, then some of the bits you get from `INTVAL' will be superfluous.
! For proper results, you must carefully disregard the values of those
! bits.
  
   It is possible to output an assembler instruction and then go on to
! output or compute more of them, using the subroutine `output_asm_insn'.
! This receives two arguments: a template-string and a vector of
! operands.  The vector may be `operands', or it may be another array of
! `rtx' that you declare locally and initialize yourself.
  
   When an insn pattern has multiple alternatives in its constraints,
! often the appearance of the assembler code is determined mostly by
! which alternative was matched.  When this is so, the C code can test
! the variable `which_alternative', which is the ordinal number of the
  alternative that was actually satisfied (0 for the first, 1 for the
  second alternative, etc.).
  
!  For example, suppose there are two opcodes for storing zero, `clrreg'
! for registers and `clrmem' for memory locations.  Here is how a pattern
! could use `which_alternative' to choose between them:
  
       (define_insn ""
         [(set (match_operand:SI 0 "general_operand" "=r,m")
--- 18988,19032 ----
          addr %2,%0
          addm %2,%0")
  
!  If the output control string starts with a '*', then it is not an
  output template but rather a piece of C program that should compute a
! template.  It should execute a 'return' statement to return the
  template-string you want.  Most such templates use C string literals,
  which require doublequote characters to delimit them.  To include these
! doublequote characters in the string, prefix each one with '\'.
  
   If the output control string is written as a brace block instead of a
  double-quoted string, it is automatically assumed to be C code.  In that
  case, it is not necessary to put in a leading asterisk, or to escape the
  doublequotes surrounding C string literals.
  
!  The operands may be found in the array 'operands', whose C data type is
! 'rtx []'.
  
   It is very common to select different ways of generating assembler code
  based on whether an immediate operand is within a certain range.  Be
! careful when doing this, because the result of 'INTVAL' is an integer on
! the host machine.  If the host machine has more bits in an 'int' than
! the target machine has in the mode in which the constant will be used,
! then some of the bits you get from 'INTVAL' will be superfluous.  For
! proper results, you must carefully disregard the values of those bits.
  
   It is possible to output an assembler instruction and then go on to
! output or compute more of them, using the subroutine 'output_asm_insn'.
! This receives two arguments: a template-string and a vector of operands.
! The vector may be 'operands', or it may be another array of 'rtx' that
! you declare locally and initialize yourself.
  
   When an insn pattern has multiple alternatives in its constraints,
! often the appearance of the assembler code is determined mostly by which
! alternative was matched.  When this is so, the C code can test the
! variable 'which_alternative', which is the ordinal number of the
  alternative that was actually satisfied (0 for the first, 1 for the
  second alternative, etc.).
  
!  For example, suppose there are two opcodes for storing zero, 'clrreg'
! for registers and 'clrmem' for memory locations.  Here is how a pattern
! could use 'which_alternative' to choose between them:
  
       (define_insn ""
         [(set (match_operand:SI 0 "general_operand" "=r,m")
*************** could use `which_alternative' to choose
*** 19260,19266 ****
  
   The example above, where the assembler code to generate was _solely_
  determined by the alternative, could also have been specified as
! follows, having the output control string start with a `@':
  
       (define_insn ""
         [(set (match_operand:SI 0 "general_operand" "=r,m")
--- 19039,19045 ----
  
   The example above, where the assembler code to generate was _solely_
  determined by the alternative, could also have been specified as
! follows, having the output control string start with a '@':
  
       (define_insn ""
         [(set (match_operand:SI 0 "general_operand" "=r,m")
*************** follows, having the output control strin
*** 19271,19277 ****
          clrmem %0")
  
   If you just need a little bit of C code in one (or a few) alternatives,
! you can use `*' inside of a `@' multi-alternative template:
  
       (define_insn ""
         [(set (match_operand:SI 0 "general_operand" "=r,<,m")
--- 19050,19056 ----
          clrmem %0")
  
   If you just need a little bit of C code in one (or a few) alternatives,
! you can use '*' inside of a '@' multi-alternative template:
  
       (define_insn ""
         [(set (match_operand:SI 0 "general_operand" "=r,<,m")
*************** File: gccint.info,  Node: Predicates,  N
*** 19288,19305 ****
  16.7 Predicates
  ===============
  
! A predicate determines whether a `match_operand' or `match_operator'
  expression matches, and therefore whether the surrounding instruction
! pattern will be used for that combination of operands.  GCC has a
! number of machine-independent predicates, and you can define
! machine-specific predicates as needed.  By convention, predicates used
! with `match_operand' have names that end in `_operand', and those used
! with `match_operator' have names that end in `_operator'.
  
!  All predicates are Boolean functions (in the mathematical sense) of
! two arguments: the RTL expression that is being considered at that
! position in the instruction pattern, and the machine mode that the
! `match_operand' or `match_operator' specifies.  In this section, the
  first argument is called OP and the second argument MODE.  Predicates
  can be called from C as ordinary two-argument functions; this can be
  useful in output templates or other machine-specific code.
--- 19067,19084 ----
  16.7 Predicates
  ===============
  
! A predicate determines whether a 'match_operand' or 'match_operator'
  expression matches, and therefore whether the surrounding instruction
! pattern will be used for that combination of operands.  GCC has a number
! of machine-independent predicates, and you can define machine-specific
! predicates as needed.  By convention, predicates used with
! 'match_operand' have names that end in '_operand', and those used with
! 'match_operator' have names that end in '_operator'.
  
!  All predicates are Boolean functions (in the mathematical sense) of two
! arguments: the RTL expression that is being considered at that position
! in the instruction pattern, and the machine mode that the
! 'match_operand' or 'match_operator' specifies.  In this section, the
  first argument is called OP and the second argument MODE.  Predicates
  can be called from C as ordinary two-argument functions; this can be
  useful in output templates or other machine-specific code.
*************** useful in output templates or other mach
*** 19308,19337 ****
  to the hardware, as long as the constraints give reload the ability to
  fix them up (*note Constraints::).  However, GCC will usually generate
  better code if the predicates specify the requirements of the machine
! instructions as closely as possible.  Reload cannot fix up operands
! that must be constants ("immediate operands"); you must use a predicate
! that allows only constants, or else enforce the requirement in the
! extra condition.
  
   Most predicates handle their MODE argument in a uniform manner.  If
! MODE is `VOIDmode' (unspecified), then OP can have any mode.  If MODE
! is anything else, then OP must have the same mode, unless OP is a
! `CONST_INT' or integer `CONST_DOUBLE'.  These RTL expressions always
! have `VOIDmode', so it would be counterproductive to check that their
! mode matches.  Instead, predicates that accept `CONST_INT' and/or
! integer `CONST_DOUBLE' check that the value stored in the constant will
  fit in the requested mode.
  
!  Predicates with this behavior are called "normal".  `genrecog' can
  optimize the instruction recognizer based on knowledge of how normal
  predicates treat modes.  It can also diagnose certain kinds of common
  errors in the use of normal predicates; for instance, it is almost
  always an error to use a normal predicate without specifying a mode.
  
   Predicates that do something different with their MODE argument are
! called "special".  The generic predicates `address_operand' and
! `pmode_register_operand' are special predicates.  `genrecog' does not
! do any optimizations or diagnosis when special predicates are used.
  
  * Menu:
  
--- 19087,19116 ----
  to the hardware, as long as the constraints give reload the ability to
  fix them up (*note Constraints::).  However, GCC will usually generate
  better code if the predicates specify the requirements of the machine
! instructions as closely as possible.  Reload cannot fix up operands that
! must be constants ("immediate operands"); you must use a predicate that
! allows only constants, or else enforce the requirement in the extra
! condition.
  
   Most predicates handle their MODE argument in a uniform manner.  If
! MODE is 'VOIDmode' (unspecified), then OP can have any mode.  If MODE is
! anything else, then OP must have the same mode, unless OP is a
! 'CONST_INT' or integer 'CONST_DOUBLE'.  These RTL expressions always
! have 'VOIDmode', so it would be counterproductive to check that their
! mode matches.  Instead, predicates that accept 'CONST_INT' and/or
! integer 'CONST_DOUBLE' check that the value stored in the constant will
  fit in the requested mode.
  
!  Predicates with this behavior are called "normal".  'genrecog' can
  optimize the instruction recognizer based on knowledge of how normal
  predicates treat modes.  It can also diagnose certain kinds of common
  errors in the use of normal predicates; for instance, it is almost
  always an error to use a normal predicate without specifying a mode.
  
   Predicates that do something different with their MODE argument are
! called "special".  The generic predicates 'address_operand' and
! 'pmode_register_operand' are special predicates.  'genrecog' does not do
! any optimizations or diagnosis when special predicates are used.
  
  * Menu:
  
*************** File: gccint.info,  Node: Machine-Indepe
*** 19346,19352 ****
  -------------------------------------
  
  These are the generic predicates available to all back ends.  They are
! defined in `recog.c'.  The first category of predicates allow only
  constant, or "immediate", operands.
  
   -- Function: immediate_operand
--- 19125,19131 ----
  -------------------------------------
  
  These are the generic predicates available to all back ends.  They are
! defined in 'recog.c'.  The first category of predicates allow only
  constant, or "immediate", operands.
  
   -- Function: immediate_operand
*************** constant, or "immediate", operands.
*** 19355,19381 ****
       must be constant.
  
   -- Function: const_int_operand
!      This predicate allows any `CONST_INT' expression that fits in
!      MODE.  It is an appropriate choice for an immediate operand that
!      does not allow a symbol or label.
  
   -- Function: const_double_operand
!      This predicate accepts any `CONST_DOUBLE' expression that has
!      exactly MODE.  If MODE is `VOIDmode', it will also accept
!      `CONST_INT'.  It is intended for immediate floating point
       constants.
  
  The second category of predicates allow only some kind of machine
  register.
  
   -- Function: register_operand
!      This predicate allows any `REG' or `SUBREG' expression that is
       valid for MODE.  It is often suitable for arithmetic instruction
       operands on a RISC machine.
  
   -- Function: pmode_register_operand
!      This is a slight variant on `register_operand' which works around
!      a limitation in the machine-description reader.
  
            (match_operand N "pmode_register_operand" CONSTRAINT)
  
--- 19134,19160 ----
       must be constant.
  
   -- Function: const_int_operand
!      This predicate allows any 'CONST_INT' expression that fits in MODE.
!      It is an appropriate choice for an immediate operand that does not
!      allow a symbol or label.
  
   -- Function: const_double_operand
!      This predicate accepts any 'CONST_DOUBLE' expression that has
!      exactly MODE.  If MODE is 'VOIDmode', it will also accept
!      'CONST_INT'.  It is intended for immediate floating point
       constants.
  
  The second category of predicates allow only some kind of machine
  register.
  
   -- Function: register_operand
!      This predicate allows any 'REG' or 'SUBREG' expression that is
       valid for MODE.  It is often suitable for arithmetic instruction
       operands on a RISC machine.
  
   -- Function: pmode_register_operand
!      This is a slight variant on 'register_operand' which works around a
!      limitation in the machine-description reader.
  
            (match_operand N "pmode_register_operand" CONSTRAINT)
  
*************** register.
*** 19383,19397 ****
  
            (match_operand:P N "register_operand" CONSTRAINT)
  
!      would mean, if the machine-description reader accepted `:P' mode
!      suffixes.  Unfortunately, it cannot, because `Pmode' is an alias
       for some other mode, and might vary with machine-specific options.
       *Note Misc::.
  
   -- Function: scratch_operand
!      This predicate allows hard registers and `SCRATCH' expressions,
!      but not pseudo-registers.  It is used internally by
!      `match_scratch'; it should not be used directly.
  
  The third category of predicates allow only some kind of memory
  reference.
--- 19162,19176 ----
  
            (match_operand:P N "register_operand" CONSTRAINT)
  
!      would mean, if the machine-description reader accepted ':P' mode
!      suffixes.  Unfortunately, it cannot, because 'Pmode' is an alias
       for some other mode, and might vary with machine-specific options.
       *Note Misc::.
  
   -- Function: scratch_operand
!      This predicate allows hard registers and 'SCRATCH' expressions, but
!      not pseudo-registers.  It is used internally by 'match_scratch'; it
!      should not be used directly.
  
  The third category of predicates allow only some kind of memory
  reference.
*************** reference.
*** 19399,19436 ****
   -- Function: memory_operand
       This predicate allows any valid reference to a quantity of mode
       MODE in memory, as determined by the weak form of
!      `GO_IF_LEGITIMATE_ADDRESS' (*note Addressing Modes::).
  
   -- Function: address_operand
       This predicate is a little unusual; it allows any operand that is a
       valid expression for the _address_ of a quantity of mode MODE,
!      again determined by the weak form of `GO_IF_LEGITIMATE_ADDRESS'.
!      To first order, if `(mem:MODE (EXP))' is acceptable to
!      `memory_operand', then EXP is acceptable to `address_operand'.
       Note that EXP does not necessarily have the mode MODE.
  
   -- Function: indirect_operand
!      This is a stricter form of `memory_operand' which allows only
!      memory references with a `general_operand' as the address
       expression.  New uses of this predicate are discouraged, because
!      `general_operand' is very permissive, so it's hard to tell what an
!      `indirect_operand' does or does not allow.  If a target has
       different requirements for memory operands for different
       instructions, it is better to define target-specific predicates
       which enforce the hardware's requirements explicitly.
  
   -- Function: push_operand
       This predicate allows a memory reference suitable for pushing a
!      value onto the stack.  This will be a `MEM' which refers to
!      `stack_pointer_rtx', with a side-effect in its address expression
!      (*note Incdec::); which one is determined by the `STACK_PUSH_CODE'
       macro (*note Frame Layout::).
  
   -- Function: pop_operand
       This predicate allows a memory reference suitable for popping a
!      value off the stack.  Again, this will be a `MEM' referring to
!      `stack_pointer_rtx', with a side-effect in its address expression.
!      However, this time `STACK_POP_CODE' is expected.
  
  The fourth category of predicates allow some combination of the above
  operands.
--- 19178,19215 ----
   -- Function: memory_operand
       This predicate allows any valid reference to a quantity of mode
       MODE in memory, as determined by the weak form of
!      'GO_IF_LEGITIMATE_ADDRESS' (*note Addressing Modes::).
  
   -- Function: address_operand
       This predicate is a little unusual; it allows any operand that is a
       valid expression for the _address_ of a quantity of mode MODE,
!      again determined by the weak form of 'GO_IF_LEGITIMATE_ADDRESS'.
!      To first order, if '(mem:MODE (EXP))' is acceptable to
!      'memory_operand', then EXP is acceptable to 'address_operand'.
       Note that EXP does not necessarily have the mode MODE.
  
   -- Function: indirect_operand
!      This is a stricter form of 'memory_operand' which allows only
!      memory references with a 'general_operand' as the address
       expression.  New uses of this predicate are discouraged, because
!      'general_operand' is very permissive, so it's hard to tell what an
!      'indirect_operand' does or does not allow.  If a target has
       different requirements for memory operands for different
       instructions, it is better to define target-specific predicates
       which enforce the hardware's requirements explicitly.
  
   -- Function: push_operand
       This predicate allows a memory reference suitable for pushing a
!      value onto the stack.  This will be a 'MEM' which refers to
!      'stack_pointer_rtx', with a side-effect in its address expression
!      (*note Incdec::); which one is determined by the 'STACK_PUSH_CODE'
       macro (*note Frame Layout::).
  
   -- Function: pop_operand
       This predicate allows a memory reference suitable for popping a
!      value off the stack.  Again, this will be a 'MEM' referring to
!      'stack_pointer_rtx', with a side-effect in its address expression.
!      However, this time 'STACK_POP_CODE' is expected.
  
  The fourth category of predicates allow some combination of the above
  operands.
*************** Finally, there are two generic operator
*** 19451,19464 ****
  
   -- Function: comparison_operator
       This predicate matches any expression which performs an arithmetic
!      comparison in MODE; that is, `COMPARISON_P' is true for the
       expression code.
  
   -- Function: ordered_comparison_operator
       This predicate matches any expression which performs an arithmetic
       comparison in MODE and whose expression code is valid for integer
!      modes; that is, the expression code will be one of `eq', `ne',
!      `lt', `ltu', `le', `leu', `gt', `gtu', `ge', `geu'.
  
  
  File: gccint.info,  Node: Defining Predicates,  Prev: Machine-Independent Predicates,  Up: Predicates
--- 19230,19243 ----
  
   -- Function: comparison_operator
       This predicate matches any expression which performs an arithmetic
!      comparison in MODE; that is, 'COMPARISON_P' is true for the
       expression code.
  
   -- Function: ordered_comparison_operator
       This predicate matches any expression which performs an arithmetic
       comparison in MODE and whose expression code is valid for integer
!      modes; that is, the expression code will be one of 'eq', 'ne',
!      'lt', 'ltu', 'le', 'leu', 'gt', 'gtu', 'ge', 'geu'.
  
  
  File: gccint.info,  Node: Defining Predicates,  Prev: Machine-Independent Predicates,  Up: Predicates
*************** File: gccint.info,  Node: Defining Predi
*** 19468,19500 ****
  
  Many machines have requirements for their operands that cannot be
  expressed precisely using the generic predicates.  You can define
! additional predicates using `define_predicate' and
! `define_special_predicate' expressions.  These expressions have three
  operands:
  
     * The name of the predicate, as it will be referred to in
!      `match_operand' or `match_operator' expressions.
  
     * An RTL expression which evaluates to true if the predicate allows
       the operand OP, false if it does not.  This expression can only use
       the following RTL codes:
  
!     `MATCH_OPERAND'
!           When written inside a predicate expression, a `MATCH_OPERAND'
            expression evaluates to true if the predicate it names would
!           allow OP.  The operand number and constraint are ignored.
!           Due to limitations in `genrecog', you can only refer to
!           generic predicates and predicates that have already been
!           defined.
  
!     `MATCH_CODE'
            This expression evaluates to true if OP or a specified
            subexpression of OP has one of a given list of RTX codes.
  
            The first operand of this expression is a string constant
            containing a comma-separated list of RTX code names (in lower
!           case).  These are the codes for which the `MATCH_CODE' will
!           be true.
  
            The second operand is a string constant which indicates what
            subexpression of OP to examine.  If it is absent or the empty
--- 19247,19278 ----
  
  Many machines have requirements for their operands that cannot be
  expressed precisely using the generic predicates.  You can define
! additional predicates using 'define_predicate' and
! 'define_special_predicate' expressions.  These expressions have three
  operands:
  
     * The name of the predicate, as it will be referred to in
!      'match_operand' or 'match_operator' expressions.
  
     * An RTL expression which evaluates to true if the predicate allows
       the operand OP, false if it does not.  This expression can only use
       the following RTL codes:
  
!      'MATCH_OPERAND'
!           When written inside a predicate expression, a 'MATCH_OPERAND'
            expression evaluates to true if the predicate it names would
!           allow OP.  The operand number and constraint are ignored.  Due
!           to limitations in 'genrecog', you can only refer to generic
!           predicates and predicates that have already been defined.
  
!      'MATCH_CODE'
            This expression evaluates to true if OP or a specified
            subexpression of OP has one of a given list of RTX codes.
  
            The first operand of this expression is a string constant
            containing a comma-separated list of RTX code names (in lower
!           case).  These are the codes for which the 'MATCH_CODE' will be
!           true.
  
            The second operand is a string constant which indicates what
            subexpression of OP to examine.  If it is absent or the empty
*************** operands:
*** 19503,19555 ****
            character indicates a subexpression to extract from the
            current expression; for the first character this is OP, for
            the second and subsequent characters it is the result of the
!           previous character.  A digit N extracts `XEXP (E, N)'; a
!           letter L extracts `XVECEXP (E, 0, N)' where N is the
!           alphabetic ordinal of L (0 for `a', 1 for 'b', and so on).
!           The `MATCH_CODE' then examines the RTX code of the
            subexpression extracted by the complete string.  It is not
!           possible to extract components of an `rtvec' that is not at
            position 0 within its RTX object.
  
!     `MATCH_TEST'
            This expression has one operand, a string constant containing
            a C expression.  The predicate's arguments, OP and MODE, are
            available with those names in the C expression.  The
!           `MATCH_TEST' evaluates to true if the C expression evaluates
!           to a nonzero value.  `MATCH_TEST' expressions must not have
            side effects.
  
!     `AND'
!     `IOR'
!     `NOT'
!     `IF_THEN_ELSE'
!           The basic `MATCH_' expressions can be combined using these
            logical operators, which have the semantics of the C operators
!           `&&', `||', `!', and `? :' respectively.  As in Common Lisp,
!           you may give an `AND' or `IOR' expression an arbitrary number
            of arguments; this has exactly the same effect as writing a
!           chain of two-argument `AND' or `IOR' expressions.
  
!    * An optional block of C code, which should execute `return true' if
!      the predicate is found to match and `return false' if it does not.
!      It must not have any side effects.  The predicate arguments, OP
!      and MODE, are available with those names.
  
       If a code block is present in a predicate definition, then the RTL
       expression must evaluate to true _and_ the code block must execute
!      `return true' for the predicate to allow the operand.  The RTL
!      expression is evaluated first; do not re-check anything in the
!      code block that was checked in the RTL expression.
  
!  The program `genrecog' scans `define_predicate' and
! `define_special_predicate' expressions to determine which RTX codes are
  possibly allowed.  You should always make this explicit in the RTL
! predicate expression, using `MATCH_OPERAND' and `MATCH_CODE'.
  
   Here is an example of a simple predicate definition, from the IA64
  machine description:
  
!      ;; True if OP is a `SYMBOL_REF' which refers to the sdata section.
       (define_predicate "small_addr_symbolic_operand"
         (and (match_code "symbol_ref")
              (match_test "SYMBOL_REF_SMALL_ADDR_P (op)")))
--- 19281,19333 ----
            character indicates a subexpression to extract from the
            current expression; for the first character this is OP, for
            the second and subsequent characters it is the result of the
!           previous character.  A digit N extracts 'XEXP (E, N)'; a
!           letter L extracts 'XVECEXP (E, 0, N)' where N is the
!           alphabetic ordinal of L (0 for 'a', 1 for 'b', and so on).
!           The 'MATCH_CODE' then examines the RTX code of the
            subexpression extracted by the complete string.  It is not
!           possible to extract components of an 'rtvec' that is not at
            position 0 within its RTX object.
  
!      'MATCH_TEST'
            This expression has one operand, a string constant containing
            a C expression.  The predicate's arguments, OP and MODE, are
            available with those names in the C expression.  The
!           'MATCH_TEST' evaluates to true if the C expression evaluates
!           to a nonzero value.  'MATCH_TEST' expressions must not have
            side effects.
  
!      'AND'
!      'IOR'
!      'NOT'
!      'IF_THEN_ELSE'
!           The basic 'MATCH_' expressions can be combined using these
            logical operators, which have the semantics of the C operators
!           '&&', '||', '!', and '? :' respectively.  As in Common Lisp,
!           you may give an 'AND' or 'IOR' expression an arbitrary number
            of arguments; this has exactly the same effect as writing a
!           chain of two-argument 'AND' or 'IOR' expressions.
  
!    * An optional block of C code, which should execute 'return true' if
!      the predicate is found to match and 'return false' if it does not.
!      It must not have any side effects.  The predicate arguments, OP and
!      MODE, are available with those names.
  
       If a code block is present in a predicate definition, then the RTL
       expression must evaluate to true _and_ the code block must execute
!      'return true' for the predicate to allow the operand.  The RTL
!      expression is evaluated first; do not re-check anything in the code
!      block that was checked in the RTL expression.
  
!  The program 'genrecog' scans 'define_predicate' and
! 'define_special_predicate' expressions to determine which RTX codes are
  possibly allowed.  You should always make this explicit in the RTL
! predicate expression, using 'MATCH_OPERAND' and 'MATCH_CODE'.
  
   Here is an example of a simple predicate definition, from the IA64
  machine description:
  
!      ;; True if OP is a 'SYMBOL_REF' which refers to the sdata section.
       (define_predicate "small_addr_symbolic_operand"
         (and (match_code "symbol_ref")
              (match_test "SYMBOL_REF_SMALL_ADDR_P (op)")))
*************** And here is another, showing the use of
*** 19568,19592 ****
         return (regno >= FIRST_PSEUDO_REGISTER || GENERAL_REGNO_P (regno));
       })
  
!  Predicates written with `define_predicate' automatically include a
! test that MODE is `VOIDmode', or OP has the same mode as MODE, or OP is
! a `CONST_INT' or `CONST_DOUBLE'.  They do _not_ check specifically for
! integer `CONST_DOUBLE', nor do they test that the value of either kind
! of constant fits in the requested mode.  This is because
! target-specific predicates that take constants usually have to do more
! stringent value checks anyway.  If you need the exact same treatment of
! `CONST_INT' or `CONST_DOUBLE' that the generic predicates provide, use
! a `MATCH_OPERAND' subexpression to call `const_int_operand',
! `const_double_operand', or `immediate_operand'.
  
!  Predicates written with `define_special_predicate' do not get any
  automatic mode checks, and are treated as having special mode handling
! by `genrecog'.
  
!  The program `genpreds' is responsible for generating code to test
  predicates.  It also writes a header file containing function
  declarations for all machine-specific predicates.  It is not necessary
! to declare these predicates in `CPU-protos.h'.
  
  
  File: gccint.info,  Node: Constraints,  Next: Standard Names,  Prev: Predicates,  Up: Machine Desc
--- 19346,19370 ----
         return (regno >= FIRST_PSEUDO_REGISTER || GENERAL_REGNO_P (regno));
       })
  
!  Predicates written with 'define_predicate' automatically include a test
! that MODE is 'VOIDmode', or OP has the same mode as MODE, or OP is a
! 'CONST_INT' or 'CONST_DOUBLE'.  They do _not_ check specifically for
! integer 'CONST_DOUBLE', nor do they test that the value of either kind
! of constant fits in the requested mode.  This is because target-specific
! predicates that take constants usually have to do more stringent value
! checks anyway.  If you need the exact same treatment of 'CONST_INT' or
! 'CONST_DOUBLE' that the generic predicates provide, use a
! 'MATCH_OPERAND' subexpression to call 'const_int_operand',
! 'const_double_operand', or 'immediate_operand'.
  
!  Predicates written with 'define_special_predicate' do not get any
  automatic mode checks, and are treated as having special mode handling
! by 'genrecog'.
  
!  The program 'genpreds' is responsible for generating code to test
  predicates.  It also writes a header file containing function
  declarations for all machine-specific predicates.  It is not necessary
! to declare these predicates in 'CPU-protos.h'.
  
  
  File: gccint.info,  Node: Constraints,  Next: Standard Names,  Prev: Predicates,  Up: Machine Desc
*************** File: gccint.info,  Node: Constraints,
*** 19594,19600 ****
  16.8 Operand Constraints
  ========================
  
! Each `match_operand' in an instruction pattern can specify constraints
  for the operands allowed.  The constraints allow you to fine-tune
  matching within the set of operands allowed by the predicate.
  
--- 19372,19378 ----
  16.8 Operand Constraints
  ========================
  
! Each 'match_operand' in an instruction pattern can specify constraints
  for the operands allowed.  The constraints allow you to fine-tune
  matching within the set of operands allowed by the predicate.
  
*************** kinds of register; whether the operand c
*** 19603,19609 ****
  which kinds of address; whether the operand may be an immediate
  constant, and which possible values it may have.  Constraints can also
  require two operands to match.  Side-effects aren't allowed in operands
! of inline `asm', unless `<' or `>' constraints are used, because there
  is no guarantee that the side-effects will happen exactly once in an
  instruction that can update the addressing register.
  
--- 19381,19387 ----
  which kinds of address; whether the operand may be an immediate
  constant, and which possible values it may have.  Constraints can also
  require two operands to match.  Side-effects aren't allowed in operands
! of inline 'asm', unless '<' or '>' constraints are used, because there
  is no guarantee that the side-effects will happen exactly once in an
  instruction that can update the addressing register.
  
*************** whitespace
*** 19635,19647 ****
       description even if they have different number of constraints and
       modifiers.
  
! `m'
       A memory operand is allowed, with any kind of address that the
       machine supports in general.  Note that the letter used for the
!      general memory constraint can be re-defined by a back end using
!      the `TARGET_MEM_CONSTRAINT' macro.
  
! `o'
       A memory operand is allowed, but only if the address is
       "offsettable".  This means that adding a small integer (actually,
       the width in bytes of the operand, as determined by its machine
--- 19413,19425 ----
       description even if they have different number of constraints and
       modifiers.
  
! 'm'
       A memory operand is allowed, with any kind of address that the
       machine supports in general.  Note that the letter used for the
!      general memory constraint can be re-defined by a back end using the
!      'TARGET_MEM_CONSTRAINT' macro.
  
! 'o'
       A memory operand is allowed, but only if the address is
       "offsettable".  This means that adding a small integer (actually,
       the width in bytes of the operand, as determined by its machine
*************** whitespace
*** 19657,19764 ****
       on the other addressing modes that the machine supports.
  
       Note that in an output operand which can be matched by another
!      operand, the constraint letter `o' is valid only when accompanied
!      by both `<' (if the target machine has predecrement addressing)
!      and `>' (if the target machine has preincrement addressing).
  
! `V'
!      A memory operand that is not offsettable.  In other words,
!      anything that would fit the `m' constraint but not the `o'
!      constraint.
  
! `<'
!      A memory operand with autodecrement addressing (either
!      predecrement or postdecrement) is allowed.  In inline `asm' this
!      constraint is only allowed if the operand is used exactly once in
!      an instruction that can handle the side-effects.  Not using an
!      operand with `<' in constraint string in the inline `asm' pattern
!      at all or using it in multiple instructions isn't valid, because
!      the side-effects wouldn't be performed or would be performed more
!      than once.  Furthermore, on some targets the operand with `<' in
!      constraint string must be accompanied by special instruction
!      suffixes like `%U0' instruction suffix on PowerPC or `%P0' on
!      IA-64.
  
! `>'
!      A memory operand with autoincrement addressing (either
!      preincrement or postincrement) is allowed.  In inline `asm' the
!      same restrictions as for `<' apply.
  
! `r'
       A register operand is allowed provided that it is in a general
       register.
  
! `i'
       An immediate integer operand (one with constant value) is allowed.
       This includes symbolic constants whose values will be known only at
       assembly time or later.
  
! `n'
       An immediate integer operand with a known numeric value is allowed.
       Many systems cannot support assembly-time constants for operands
       less than a word wide.  Constraints for these operands should use
!      `n' rather than `i'.
  
! `I', `J', `K', ... `P'
!      Other letters in the range `I' through `P' may be defined in a
       machine-dependent fashion to permit immediate integer operands with
       explicit integer values in specified ranges.  For example, on the
!      68000, `I' is defined to stand for the range of values 1 to 8.
       This is the range permitted as a shift count in the shift
       instructions.
  
! `E'
!      An immediate floating operand (expression code `const_double') is
       allowed, but only if the target floating point format is the same
       as that of the host machine (on which the compiler is running).
  
! `F'
!      An immediate floating operand (expression code `const_double' or
!      `const_vector') is allowed.
  
! `G', `H'
!      `G' and `H' may be defined in a machine-dependent fashion to
!      permit immediate floating operands in particular ranges of values.
  
! `s'
!      An immediate integer operand whose value is not an explicit
!      integer is allowed.
  
       This might appear strange; if an insn allows a constant operand
!      with a value not known at compile time, it certainly must allow
!      any known value.  So why use `s' instead of `i'?  Sometimes it
!      allows better code to be generated.
  
       For example, on the 68000 in a fullword instruction it is possible
       to use an immediate operand; but if the immediate value is between
       -128 and 127, better code results from loading the value into a
!      register and using the register.  This is because the load into
!      the register can be done with a `moveq' instruction.  We arrange
!      for this to happen by defining the letter `K' to mean "any integer
!      outside the range -128 to 127", and then specifying `Ks' in the
       operand constraints.
  
! `g'
       Any register, memory or immediate integer operand is allowed,
       except for registers that are not general registers.
  
! `X'
       Any operand whatsoever is allowed, even if it does not satisfy
!      `general_operand'.  This is normally used in the constraint of a
!      `match_scratch' when certain alternatives will not actually
!      require a scratch register.
  
! `0', `1', `2', ... `9'
       An operand that matches the specified operand number is allowed.
       If a digit is used together with letters within the same
       alternative, the digit should come last.
  
       This number is allowed to be more than a single digit.  If multiple
       digits are encountered consecutively, they are interpreted as a
!      single decimal integer.  There is scant chance for ambiguity,
!      since to-date it has never been desirable that `10' be interpreted
!      as matching either operand 1 _or_ operand 0.  Should this be
!      desired, one can use multiple alternatives instead.
  
       This is called a "matching constraint" and what it really means is
       that the assembler has only a single operand that fills two roles
--- 19435,19540 ----
       on the other addressing modes that the machine supports.
  
       Note that in an output operand which can be matched by another
!      operand, the constraint letter 'o' is valid only when accompanied
!      by both '<' (if the target machine has predecrement addressing) and
!      '>' (if the target machine has preincrement addressing).
  
! 'V'
!      A memory operand that is not offsettable.  In other words, anything
!      that would fit the 'm' constraint but not the 'o' constraint.
  
! '<'
!      A memory operand with autodecrement addressing (either predecrement
!      or postdecrement) is allowed.  In inline 'asm' this constraint is
!      only allowed if the operand is used exactly once in an instruction
!      that can handle the side-effects.  Not using an operand with '<' in
!      constraint string in the inline 'asm' pattern at all or using it in
!      multiple instructions isn't valid, because the side-effects
!      wouldn't be performed or would be performed more than once.
!      Furthermore, on some targets the operand with '<' in constraint
!      string must be accompanied by special instruction suffixes like
!      '%U0' instruction suffix on PowerPC or '%P0' on IA-64.
  
! '>'
!      A memory operand with autoincrement addressing (either preincrement
!      or postincrement) is allowed.  In inline 'asm' the same
!      restrictions as for '<' apply.
  
! 'r'
       A register operand is allowed provided that it is in a general
       register.
  
! 'i'
       An immediate integer operand (one with constant value) is allowed.
       This includes symbolic constants whose values will be known only at
       assembly time or later.
  
! 'n'
       An immediate integer operand with a known numeric value is allowed.
       Many systems cannot support assembly-time constants for operands
       less than a word wide.  Constraints for these operands should use
!      'n' rather than 'i'.
  
! 'I', 'J', 'K', ... 'P'
!      Other letters in the range 'I' through 'P' may be defined in a
       machine-dependent fashion to permit immediate integer operands with
       explicit integer values in specified ranges.  For example, on the
!      68000, 'I' is defined to stand for the range of values 1 to 8.
       This is the range permitted as a shift count in the shift
       instructions.
  
! 'E'
!      An immediate floating operand (expression code 'const_double') is
       allowed, but only if the target floating point format is the same
       as that of the host machine (on which the compiler is running).
  
! 'F'
!      An immediate floating operand (expression code 'const_double' or
!      'const_vector') is allowed.
  
! 'G', 'H'
!      'G' and 'H' may be defined in a machine-dependent fashion to permit
!      immediate floating operands in particular ranges of values.
  
! 's'
!      An immediate integer operand whose value is not an explicit integer
!      is allowed.
  
       This might appear strange; if an insn allows a constant operand
!      with a value not known at compile time, it certainly must allow any
!      known value.  So why use 's' instead of 'i'?  Sometimes it allows
!      better code to be generated.
  
       For example, on the 68000 in a fullword instruction it is possible
       to use an immediate operand; but if the immediate value is between
       -128 and 127, better code results from loading the value into a
!      register and using the register.  This is because the load into the
!      register can be done with a 'moveq' instruction.  We arrange for
!      this to happen by defining the letter 'K' to mean "any integer
!      outside the range -128 to 127", and then specifying 'Ks' in the
       operand constraints.
  
! 'g'
       Any register, memory or immediate integer operand is allowed,
       except for registers that are not general registers.
  
! 'X'
       Any operand whatsoever is allowed, even if it does not satisfy
!      'general_operand'.  This is normally used in the constraint of a
!      'match_scratch' when certain alternatives will not actually require
!      a scratch register.
  
! '0', '1', '2', ... '9'
       An operand that matches the specified operand number is allowed.
       If a digit is used together with letters within the same
       alternative, the digit should come last.
  
       This number is allowed to be more than a single digit.  If multiple
       digits are encountered consecutively, they are interpreted as a
!      single decimal integer.  There is scant chance for ambiguity, since
!      to-date it has never been desirable that '10' be interpreted as
!      matching either operand 1 _or_ operand 0.  Should this be desired,
!      one can use multiple alternatives instead.
  
       This is called a "matching constraint" and what it really means is
       that the assembler has only a single operand that fills two roles
*************** whitespace
*** 19777,19800 ****
  
       For operands to match in a particular case usually means that they
       are identical-looking RTL expressions.  But in a few special cases
!      specific kinds of dissimilarity are allowed.  For example, `*x' as
!      an input operand will match `*x++' as an output operand.  For
!      proper results in such cases, the output template should always
!      use the output-operand's number when printing the operand.
  
! `p'
       An operand that is a valid memory address is allowed.  This is for
       "load address" and "push address" instructions.
  
!      `p' in the constraint must be accompanied by `address_operand' as
!      the predicate in the `match_operand'.  This predicate interprets
!      the mode specified in the `match_operand' as the mode of the memory
       reference for which the address would be valid.
  
  OTHER-LETTERS
       Other letters can be defined in machine-dependent fashion to stand
       for particular classes of registers or other arbitrary operand
!      types.  `d', `a' and `f' are defined on the 68000/68020 to stand
       for data, address and floating point registers.
  
   In order to have valid assembler code, each operand must satisfy its
--- 19553,19576 ----
  
       For operands to match in a particular case usually means that they
       are identical-looking RTL expressions.  But in a few special cases
!      specific kinds of dissimilarity are allowed.  For example, '*x' as
!      an input operand will match '*x++' as an output operand.  For
!      proper results in such cases, the output template should always use
!      the output-operand's number when printing the operand.
  
! 'p'
       An operand that is a valid memory address is allowed.  This is for
       "load address" and "push address" instructions.
  
!      'p' in the constraint must be accompanied by 'address_operand' as
!      the predicate in the 'match_operand'.  This predicate interprets
!      the mode specified in the 'match_operand' as the mode of the memory
       reference for which the address would be valid.
  
  OTHER-LETTERS
       Other letters can be defined in machine-dependent fashion to stand
       for particular classes of registers or other arbitrary operand
!      types.  'd', 'a' and 'f' are defined on the 68000/68020 to stand
       for data, address and floating point registers.
  
   In order to have valid assembler code, each operand must satisfy its
*************** the first pattern would not apply at all
*** 19833,19841 ****
  contain two identical subexpressions in the right place.  The pattern
  would say, "That does not look like an add instruction; try other
  patterns".  The second pattern would say, "Yes, that's an add
! instruction, but there is something wrong with it".  It would direct
! the reload pass of the compiler to generate additional insns to make
! the constraint true.  The results might look like this:
  
       (insn N2 PREV N
         (set (reg:SI 3) (reg:SI 6))
--- 19609,19617 ----
  contain two identical subexpressions in the right place.  The pattern
  would say, "That does not look like an add instruction; try other
  patterns".  The second pattern would say, "Yes, that's an add
! instruction, but there is something wrong with it".  It would direct the
! reload pass of the compiler to generate additional insns to make the
! constraint true.  The results might look like this:
  
       (insn N2 PREV N
         (set (reg:SI 3) (reg:SI 6))
*************** reloading any possible operand so that i
*** 19862,19908 ****
       registers is safe provided its predicate rejects registers.
  
       An operand whose predicate accepts only constant values is safe
!      provided its constraints include the letter `i'.  If any possible
!      constant value is accepted, then nothing less than `i' will do; if
       the predicate is more selective, then the constraints may also be
       more selective.
  
     * Any operand expression can be reloaded by copying it into a
       register.  So if an operand's constraints allow some kind of
!      register, it is certain to be safe.  It need not permit all
!      classes of registers; the compiler knows how to copy a register
!      into another register of the proper class in order to make an
       instruction valid.
  
     * A nonoffsettable memory reference can be reloaded by copying the
!      address into a register.  So if the constraint uses the letter
!      `o', all memory references are taken care of.
  
     * A constant operand can be reloaded by allocating space in memory to
       hold it as preinitialized data.  Then the memory reference can be
       used in place of the constant.  So if the constraint uses the
!      letters `o' or `m', constant operands are not a problem.
  
     * If the constraint permits a constant and a pseudo register used in
!      an insn was not allocated to a hard register and is equivalent to
!      a constant, the register will be replaced with the constant.  If
!      the predicate does not permit a constant and the insn is
!      re-recognized for some reason, the compiler will crash.  Thus the
!      predicate must always recognize any objects allowed by the
!      constraint.
  
   If the operand's predicate can recognize registers, but the constraint
! does not permit them, it can make the compiler crash.  When this
! operand happens to be a register, the reload pass will be stymied,
! because it does not know how to copy a register temporarily into memory.
  
   If the predicate accepts a unary operator, the constraint applies to
  the operand.  For example, the MIPS processor at ISA level 3 supports an
! instruction which adds two registers in `SImode' to produce a `DImode'
  result, but only if the registers are correctly sign extended.  This
! predicate for the input operands accepts a `sign_extend' of an `SImode'
! register.  Write the constraint to indicate the type of register that
! is required for the operand of the `sign_extend'.
  
  
  File: gccint.info,  Node: Multi-Alternative,  Next: Class Preferences,  Prev: Simple Constraints,  Up: Constraints
--- 19638,19683 ----
       registers is safe provided its predicate rejects registers.
  
       An operand whose predicate accepts only constant values is safe
!      provided its constraints include the letter 'i'.  If any possible
!      constant value is accepted, then nothing less than 'i' will do; if
       the predicate is more selective, then the constraints may also be
       more selective.
  
     * Any operand expression can be reloaded by copying it into a
       register.  So if an operand's constraints allow some kind of
!      register, it is certain to be safe.  It need not permit all classes
!      of registers; the compiler knows how to copy a register into
!      another register of the proper class in order to make an
       instruction valid.
  
     * A nonoffsettable memory reference can be reloaded by copying the
!      address into a register.  So if the constraint uses the letter 'o',
!      all memory references are taken care of.
  
     * A constant operand can be reloaded by allocating space in memory to
       hold it as preinitialized data.  Then the memory reference can be
       used in place of the constant.  So if the constraint uses the
!      letters 'o' or 'm', constant operands are not a problem.
  
     * If the constraint permits a constant and a pseudo register used in
!      an insn was not allocated to a hard register and is equivalent to a
!      constant, the register will be replaced with the constant.  If the
!      predicate does not permit a constant and the insn is re-recognized
!      for some reason, the compiler will crash.  Thus the predicate must
!      always recognize any objects allowed by the constraint.
  
   If the operand's predicate can recognize registers, but the constraint
! does not permit them, it can make the compiler crash.  When this operand
! happens to be a register, the reload pass will be stymied, because it
! does not know how to copy a register temporarily into memory.
  
   If the predicate accepts a unary operator, the constraint applies to
  the operand.  For example, the MIPS processor at ISA level 3 supports an
! instruction which adds two registers in 'SImode' to produce a 'DImode'
  result, but only if the registers are correctly sign extended.  This
! predicate for the input operands accepts a 'sign_extend' of an 'SImode'
! register.  Write the constraint to indicate the type of register that is
! required for the operand of the 'sign_extend'.
  
  
  File: gccint.info,  Node: Multi-Alternative,  Next: Class Preferences,  Prev: Simple Constraints,  Up: Constraints
*************** on the 68000:
*** 19931,19977 ****
                       (match_operand:SI 2 "general_operand" "dKs,dmKs")))]
         ...)
  
!  The first alternative has `m' (memory) for operand 0, `0' for operand
! 1 (meaning it must match operand 0), and `dKs' for operand 2.  The
! second alternative has `d' (data register) for operand 0, `0' for
! operand 1, and `dmKs' for operand 2.  The `=' and `%' in the
! constraints apply to all the alternatives; their meaning is explained
! in the next section (*note Class Preferences::).
  
   If all the operands fit any one alternative, the instruction is valid.
  Otherwise, for each alternative, the compiler counts how many
! instructions must be added to copy the operands so that that
! alternative applies.  The alternative requiring the least copying is
! chosen.  If two alternatives need the same amount of copying, the one
! that comes first is chosen.  These choices can be altered with the `?'
! and `!' characters:
  
! `?'
!      Disparage slightly the alternative that the `?' appears in, as a
       choice when no alternative applies exactly.  The compiler regards
!      this alternative as one unit more costly for each `?' that appears
       in it.
  
! `!'
!      Disparage severely the alternative that the `!' appears in.  This
       alternative can still be used if it fits without reloading, but if
       reloading is needed, some other alternative will be used.
  
! `^'
!      This constraint is analogous to `?' but it disparages slightly the
!      alternative only if the operand with the `^' needs a reload.
  
! `$'
!      This constraint is analogous to `!' but it disparages severely the
!      alternative only if the operand with the `$' needs a reload.
  
   When an insn pattern has multiple alternatives in its constraints,
  often the appearance of the assembler code is determined mostly by which
  alternative was matched.  When this is so, the C code for writing the
! assembler code can use the variable `which_alternative', which is the
! ordinal number of the alternative that was actually satisfied (0 for
! the first, 1 for the second alternative, etc.).  *Note Output
! Statement::.
  
  
  File: gccint.info,  Node: Class Preferences,  Next: Modifiers,  Prev: Multi-Alternative,  Up: Constraints
--- 19706,19751 ----
                       (match_operand:SI 2 "general_operand" "dKs,dmKs")))]
         ...)
  
!  The first alternative has 'm' (memory) for operand 0, '0' for operand 1
! (meaning it must match operand 0), and 'dKs' for operand 2.  The second
! alternative has 'd' (data register) for operand 0, '0' for operand 1,
! and 'dmKs' for operand 2.  The '=' and '%' in the constraints apply to
! all the alternatives; their meaning is explained in the next section
! (*note Class Preferences::).
  
   If all the operands fit any one alternative, the instruction is valid.
  Otherwise, for each alternative, the compiler counts how many
! instructions must be added to copy the operands so that that alternative
! applies.  The alternative requiring the least copying is chosen.  If two
! alternatives need the same amount of copying, the one that comes first
! is chosen.  These choices can be altered with the '?' and '!'
! characters:
  
! '?'
!      Disparage slightly the alternative that the '?' appears in, as a
       choice when no alternative applies exactly.  The compiler regards
!      this alternative as one unit more costly for each '?' that appears
       in it.
  
! '!'
!      Disparage severely the alternative that the '!' appears in.  This
       alternative can still be used if it fits without reloading, but if
       reloading is needed, some other alternative will be used.
  
! '^'
!      This constraint is analogous to '?' but it disparages slightly the
!      alternative only if the operand with the '^' needs a reload.
  
! '$'
!      This constraint is analogous to '!' but it disparages severely the
!      alternative only if the operand with the '$' needs a reload.
  
   When an insn pattern has multiple alternatives in its constraints,
  often the appearance of the assembler code is determined mostly by which
  alternative was matched.  When this is so, the C code for writing the
! assembler code can use the variable 'which_alternative', which is the
! ordinal number of the alternative that was actually satisfied (0 for the
! first, 1 for the second alternative, etc.).  *Note Output Statement::.
  
  
  File: gccint.info,  Node: Class Preferences,  Next: Modifiers,  Prev: Multi-Alternative,  Up: Constraints
*************** The operand constraints have another fun
*** 19983,19991 ****
  to decide which kind of hardware register a pseudo register is best
  allocated to.  The compiler examines the constraints that apply to the
  insns that use the pseudo register, looking for the machine-dependent
! letters such as `d' and `a' that specify classes of registers.  The
  pseudo register is put in whichever class gets the most "votes".  The
! constraint letters `g' and `r' also vote: they vote in favor of a
  general register.  The machine description says which registers are
  considered general.
  
--- 19757,19765 ----
  to decide which kind of hardware register a pseudo register is best
  allocated to.  The compiler examines the constraints that apply to the
  insns that use the pseudo register, looking for the machine-dependent
! letters such as 'd' and 'a' that specify classes of registers.  The
  pseudo register is put in whichever class gets the most "votes".  The
! constraint letters 'g' and 'r' also vote: they vote in favor of a
  general register.  The machine description says which registers are
  considered general.
  
*************** File: gccint.info,  Node: Modifiers,  Ne
*** 20000,20056 ****
  
  Here are constraint modifier characters.
  
! `='
       Means that this operand is written to by this instruction: the
       previous value is discarded and replaced by new data.
  
! `+'
       Means that this operand is both read and written by the
       instruction.
  
       When the compiler fixes up the operands to satisfy the constraints,
       it needs to know which operands are read by the instruction and
!      which are written by it.  `=' identifies an operand which is only
!      written; `+' identifies an operand that is both read and written;
       all other operands are assumed to only be read.
  
!      If you specify `=' or `+' in a constraint, you put it in the first
       character of the constraint string.
  
! `&'
       Means (in a particular alternative) that this operand is an
       "earlyclobber" operand, which is written before the instruction is
!      finished using the input operands.  Therefore, this operand may
!      not lie in a register that is read by the instruction or as part
!      of any memory address.
  
!      `&' applies only to the alternative in which it is written.  In
       constraints with multiple alternatives, sometimes one alternative
!      requires `&' while others do not.  See, for example, the `movdf'
       insn of the 68000.
  
       A operand which is read by the instruction can be tied to an
       earlyclobber operand if its only use as an input occurs before the
       early result is written.  Adding alternatives of this form often
       allows GCC to produce better code when only some of the read
!      operands can be affected by the earlyclobber. See, for example,
!      the `mulsi3' insn of the ARM.
  
       Furthermore, if the "earlyclobber" operand is also a read/write
       operand, then that operand is written only after it's used.
  
!      `&' does not obviate the need to write `=' or `+'.  As
       "earlyclobber" operands are always written, a read-only
       "earlyclobber" operand is ill-formed and will be rejected by the
       compiler.
  
! `%'
       Declares the instruction to be commutative for this operand and the
       following operand.  This means that the compiler may interchange
       the two operands if that is the cheapest way to make all operands
!      fit the constraints.  `%' applies to all alternatives and must
       appear as the first character in the constraint.  Only read-only
!      operands can use `%'.
  
       This is often used in patterns for addition instructions that
       really have only two operands: the result must go in one of the
--- 19774,19830 ----
  
  Here are constraint modifier characters.
  
! '='
       Means that this operand is written to by this instruction: the
       previous value is discarded and replaced by new data.
  
! '+'
       Means that this operand is both read and written by the
       instruction.
  
       When the compiler fixes up the operands to satisfy the constraints,
       it needs to know which operands are read by the instruction and
!      which are written by it.  '=' identifies an operand which is only
!      written; '+' identifies an operand that is both read and written;
       all other operands are assumed to only be read.
  
!      If you specify '=' or '+' in a constraint, you put it in the first
       character of the constraint string.
  
! '&'
       Means (in a particular alternative) that this operand is an
       "earlyclobber" operand, which is written before the instruction is
!      finished using the input operands.  Therefore, this operand may not
!      lie in a register that is read by the instruction or as part of any
!      memory address.
  
!      '&' applies only to the alternative in which it is written.  In
       constraints with multiple alternatives, sometimes one alternative
!      requires '&' while others do not.  See, for example, the 'movdf'
       insn of the 68000.
  
       A operand which is read by the instruction can be tied to an
       earlyclobber operand if its only use as an input occurs before the
       early result is written.  Adding alternatives of this form often
       allows GCC to produce better code when only some of the read
!      operands can be affected by the earlyclobber.  See, for example,
!      the 'mulsi3' insn of the ARM.
  
       Furthermore, if the "earlyclobber" operand is also a read/write
       operand, then that operand is written only after it's used.
  
!      '&' does not obviate the need to write '=' or '+'.  As
       "earlyclobber" operands are always written, a read-only
       "earlyclobber" operand is ill-formed and will be rejected by the
       compiler.
  
! '%'
       Declares the instruction to be commutative for this operand and the
       following operand.  This means that the compiler may interchange
       the two operands if that is the cheapest way to make all operands
!      fit the constraints.  '%' applies to all alternatives and must
       appear as the first character in the constraint.  Only read-only
!      operands can use '%'.
  
       This is often used in patterns for addition instructions that
       really have only two operands: the result must go in one of the
*************** Here are constraint modifier characters.
*** 20064,20095 ****
              ...)
       GCC can only handle one commutative pair in an asm; if you use
       more, the compiler may fail.  Note that you need not use the
!      modifier if the two alternatives are strictly identical; this
!      would only waste time in the reload pass.  The modifier is not
       operational after register allocation, so the result of
!      `define_peephole2' and `define_split's performed after reload
!      cannot rely on `%' to make the intended insn match.
  
! `#'
       Says that all following characters, up to the next comma, are to be
       ignored as a constraint.  They are significant only for choosing
       register preferences.
  
! `*'
       Says that the following character should be ignored when choosing
!      register preferences.  `*' has no effect on the meaning of the
       constraint as a constraint, and no effect on reloading.  For LRA
!      `*' additionally disparages slightly the alternative if the
       following character matches the operand.
  
       Here is an example: the 68000 has an instruction to sign-extend a
       halfword in a data register, and can also sign-extend a value by
!      copying it into an address register.  While either kind of
!      register is acceptable, the constraints on an address-register
!      destination are less strict, so it is best if register allocation
!      makes an address register its goal.  Therefore, `*' is used so
!      that the `d' constraint letter (for data register) is ignored when
!      computing register preferences.
  
            (define_insn "extendhisi2"
              [(set (match_operand:SI 0 "general_operand" "=*d,a")
--- 19838,19869 ----
              ...)
       GCC can only handle one commutative pair in an asm; if you use
       more, the compiler may fail.  Note that you need not use the
!      modifier if the two alternatives are strictly identical; this would
!      only waste time in the reload pass.  The modifier is not
       operational after register allocation, so the result of
!      'define_peephole2' and 'define_split's performed after reload
!      cannot rely on '%' to make the intended insn match.
  
! '#'
       Says that all following characters, up to the next comma, are to be
       ignored as a constraint.  They are significant only for choosing
       register preferences.
  
! '*'
       Says that the following character should be ignored when choosing
!      register preferences.  '*' has no effect on the meaning of the
       constraint as a constraint, and no effect on reloading.  For LRA
!      '*' additionally disparages slightly the alternative if the
       following character matches the operand.
  
       Here is an example: the 68000 has an instruction to sign-extend a
       halfword in a data register, and can also sign-extend a value by
!      copying it into an address register.  While either kind of register
!      is acceptable, the constraints on an address-register destination
!      are less strict, so it is best if register allocation makes an
!      address register its goal.  Therefore, '*' is used so that the 'd'
!      constraint letter (for data register) is ignored when computing
!      register preferences.
  
            (define_insn "extendhisi2"
              [(set (match_operand:SI 0 "general_operand" "=*d,a")
*************** File: gccint.info,  Node: Machine Constr
*** 20104,21553 ****
  ------------------------------------------
  
  Whenever possible, you should use the general-purpose constraint letters
! in `asm' arguments, since they will convey meaning more readily to
! people reading your code.  Failing that, use the constraint letters
! that usually have very similar meanings across architectures.  The most
! commonly used constraints are `m' and `r' (for memory and
  general-purpose registers respectively; *note Simple Constraints::), and
! `I', usually the letter indicating the most common immediate-constant
  format.
  
   Each architecture defines additional constraints.  These constraints
  are used by the compiler itself for instruction generation, as well as
! for `asm' statements; therefore, some of the constraints are not
! particularly useful for `asm'.  Here is a summary of some of the
  machine-dependent constraints available on some particular machines; it
! includes both constraints that are useful for `asm' and constraints
! that aren't.  The compiler source file mentioned in the table heading
! for each architecture is the definitive reference for the meanings of
! that architecture's constraints.
! 
! _AArch64 family--`config/aarch64/constraints.md'_
  
!     `k'
!           The stack pointer register (`SP')
  
!     `w'
            Floating point or SIMD vector register
  
!     `I'
            Integer constant that is valid as an immediate operand in an
!           `ADD' instruction
  
!     `J'
            Integer constant that is valid as an immediate operand in a
!           `SUB' instruction (once negated)
  
!     `K'
            Integer constant that can be used with a 32-bit logical
            instruction
  
!     `L'
            Integer constant that can be used with a 64-bit logical
            instruction
  
!     `M'
            Integer constant that is valid as an immediate operand in a
!           32-bit `MOV' pseudo instruction. The `MOV' may be assembled
            to one of several different machine instructions depending on
            the value
  
!     `N'
            Integer constant that is valid as an immediate operand in a
!           64-bit `MOV' pseudo instruction
  
!     `S'
            An absolute symbolic address or a label reference
  
!     `Y'
            Floating point constant zero
  
!     `Z'
            Integer constant zero
  
!     `Ush'
!           The high part (bits 12 and upwards) of the pc-relative
!           address of a symbol within 4GB of the instruction
  
!     `Q'
            A memory address which uses a single base register with no
            offset
  
!     `Ump'
!           A memory address suitable for a load/store pair instruction
!           in SI, DI, SF and DF modes
! 
! 
! _ARC --`config/arc/constraints.md'_
  
!     `q'
!           Registers usable in ARCompact 16-bit instructions: `r0'-`r3',
!           `r12'-`r15'.  This constraint can only match when the `-mq'
            option is in effect.
  
!     `e'
!           Registers usable as base-regs of memory addresses in
!           ARCompact 16-bit memory instructions: `r0'-`r3', `r12'-`r15',
!           `sp'.  This constraint can only match when the `-mq' option
!           is in effect.
! 
!     `D'
!           ARC FPX (dpfp) 64-bit registers. `D0', `D1'.
  
!     `I'
            A signed 12-bit integer constant.
  
!     `Cal'
!           constant for arithmetic/logical operations.  This might be
!           any constant that can be put into a long immediate by the
!           assmbler or linker without involving a PIC relocation.
  
!     `K'
            A 3-bit unsigned integer constant.
  
!     `L'
            A 6-bit unsigned integer constant.
  
!     `CnL'
            One's complement of a 6-bit unsigned integer constant.
  
!     `CmL'
            Two's complement of a 6-bit unsigned integer constant.
  
!     `M'
            A 5-bit unsigned integer constant.
  
!     `O'
            A 7-bit unsigned integer constant.
  
!     `P'
            A 8-bit unsigned integer constant.
  
!     `H'
            Any const_double value.
  
! _ARM family--`config/arm/constraints.md'_
  
!     `h'
!           In Thumb state, the core registers `r8'-`r15'.
  
!     `k'
            The stack pointer register.
  
!     `l'
!           In Thumb State the core registers `r0'-`r7'.  In ARM state
!           this is an alias for the `r' constraint.
  
!     `t'
!           VFP floating-point registers `s0'-`s31'.  Used for 32 bit
            values.
  
!     `w'
!           VFP floating-point registers `d0'-`d31' and the appropriate
!           subset `d0'-`d15' based on command line options.  Used for 64
            bit values only.  Not valid for Thumb1.
  
!     `y'
            The iWMMX co-processor registers.
  
!     `z'
            The iWMMX GR registers.
  
!     `G'
            The floating-point constant 0.0
  
!     `I'
            Integer that is valid as an immediate operand in a data
!           processing instruction.  That is, an integer in the range 0
!           to 255 rotated by a multiple of 2
  
!     `J'
            Integer in the range -4095 to 4095
  
!     `K'
!           Integer that satisfies constraint `I' when inverted (ones
            complement)
  
!     `L'
!           Integer that satisfies constraint `I' when negated (twos
            complement)
  
!     `M'
            Integer in the range 0 to 32
  
!     `Q'
            A memory reference where the exact address is in a single
!           register (``m'' is preferable for `asm' statements)
  
!     `R'
            An item in the constant pool
  
!     `S'
            A symbol in the text segment of the current file
  
!     `Uv'
            A memory reference suitable for VFP load/store insns
            (reg+constant offset)
  
!     `Uy'
            A memory reference suitable for iWMMXt load/store
            instructions.
  
!     `Uq'
            A memory reference suitable for the ARMv4 ldrsb instruction.
  
! _AVR family--`config/avr/constraints.md'_
! 
!     `l'
            Registers from r0 to r15
  
!     `a'
            Registers from r16 to r23
  
!     `d'
            Registers from r16 to r31
  
!     `w'
            Registers from r24 to r31.  These registers can be used in
!           `adiw' command
  
!     `e'
            Pointer register (r26-r31)
  
!     `b'
            Base pointer register (r28-r31)
  
!     `q'
            Stack pointer register (SPH:SPL)
  
!     `t'
            Temporary register r0
  
!     `x'
            Register pair X (r27:r26)
  
!     `y'
            Register pair Y (r29:r28)
  
!     `z'
            Register pair Z (r31:r30)
  
!     `I'
            Constant greater than -1, less than 64
  
!     `J'
            Constant greater than -64, less than 1
  
!     `K'
            Constant integer 2
  
!     `L'
            Constant integer 0
  
!     `M'
            Constant that fits in 8 bits
  
!     `N'
            Constant integer -1
  
!     `O'
            Constant integer 8, 16, or 24
  
!     `P'
            Constant integer 1
  
!     `G'
            A floating point constant 0.0
  
!     `Q'
            A memory address based on Y or Z pointer with displacement.
  
! _Blackfin family--`config/bfin/constraints.md'_
! 
!     `a'
            P register
  
!     `d'
            D register
  
!     `z'
            A call clobbered P register.
  
!     `qN'
            A single register.  If N is in the range 0 to 7, the
!           corresponding D register.  If it is `A', then the register P0.
  
!     `D'
            Even-numbered D register
  
!     `W'
            Odd-numbered D register
  
!     `e'
            Accumulator register.
  
!     `A'
            Even-numbered accumulator register.
  
!     `B'
            Odd-numbered accumulator register.
  
!     `b'
            I register
  
!     `v'
            B register
  
!     `f'
            M register
  
!     `c'
!           Registers used for circular buffering, i.e. I, B, or L
            registers.
  
!     `C'
            The CC register.
  
!     `t'
            LT0 or LT1.
  
!     `k'
            LC0 or LC1.
  
!     `u'
            LB0 or LB1.
  
!     `x'
            Any D, P, B, M, I or L register.
  
!     `y'
            Additional registers typically used only in prologues and
            epilogues: RETS, RETN, RETI, RETX, RETE, ASTAT, SEQSTAT and
            USP.
  
!     `w'
            Any register except accumulators or CC.
  
!     `Ksh'
            Signed 16 bit integer (in the range -32768 to 32767)
  
!     `Kuh'
            Unsigned 16 bit integer (in the range 0 to 65535)
  
!     `Ks7'
            Signed 7 bit integer (in the range -64 to 63)
  
!     `Ku7'
            Unsigned 7 bit integer (in the range 0 to 127)
  
!     `Ku5'
            Unsigned 5 bit integer (in the range 0 to 31)
  
!     `Ks4'
            Signed 4 bit integer (in the range -8 to 7)
  
!     `Ks3'
            Signed 3 bit integer (in the range -3 to 4)
  
!     `Ku3'
            Unsigned 3 bit integer (in the range 0 to 7)
  
!     `PN'
            Constant N, where N is a single-digit constant in the range 0
            to 4.
  
!     `PA'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use with either accumulator.
  
!     `PB'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use only with accumulator A1.
  
!     `M1'
            Constant 255.
  
!     `M2'
            Constant 65535.
  
!     `J'
            An integer constant with exactly a single bit set.
  
!     `L'
            An integer constant with all bits set except exactly one.
  
!     `H'
  
!     `Q'
            Any SYMBOL_REF.
  
! _CR16 Architecture--`config/cr16/cr16.h'_
  
!     `b'
            Registers from r0 to r14 (registers without stack pointer)
  
!     `t'
            Register from r0 to r11 (all 16-bit registers)
  
!     `p'
            Register from r12 to r15 (all 32-bit registers)
  
!     `I'
            Signed constant that fits in 4 bits
  
!     `J'
            Signed constant that fits in 5 bits
  
!     `K'
            Signed constant that fits in 6 bits
  
!     `L'
            Unsigned constant that fits in 4 bits
  
!     `M'
            Signed constant that fits in 32 bits
  
!     `N'
            Check for 64 bits wide constants for add/sub instructions
  
!     `G'
            Floating point constant that is legal for store immediate
  
! _Epiphany--`config/epiphany/constraints.md'_
! 
!     `U16'
            An unsigned 16-bit constant.
  
!     `K'
            An unsigned 5-bit constant.
  
!     `L'
            A signed 11-bit constant.
  
!     `Cm1'
!           A signed 11-bit constant added to -1.  Can only match when
!           the `-m1reg-REG' option is active.
  
!     `Cl1'
            Left-shift of -1, i.e., a bit mask with a block of leading
            ones, the rest being a block of trailing zeroes.  Can only
!           match when the `-m1reg-REG' option is active.
  
!     `Cr1'
            Right-shift of -1, i.e., a bit mask with a trailing block of
            ones, the rest being zeroes.  Or to put it another way, one
            less than a power of two.  Can only match when the
!           `-m1reg-REG' option is active.
  
!     `Cal'
!           Constant for arithmetic/logical operations.  This is like
!           `i', except that for position independent code, no symbols /
            expressions needing relocations are allowed.
  
!     `Csy'
            Symbolic constant for call/jump instruction.
  
!     `Rcs'
            The register class usable in short insns.  This is a register
            class constraint, and can thus drive register allocation.
!           This constraint won't match unless `-mprefer-short-insn-regs'
            is in effect.
  
!     `Rsc'
            The the register class of registers that can be used to hold a
            sibcall call address.  I.e., a caller-saved register.
  
!     `Rct'
            Core control register class.
  
!     `Rgs'
            The register group usable in short insns.  This constraint
            does not use a register class, so that it only passively
            matches suitable registers, and doesn't drive register
            allocation.
  
!     `Car'
            Constant suitable for the addsi3_r pattern.  This is a valid
            offset For byte, halfword, or word addressing.
  
!     `Rra'
!           Matches the return address if it can be replaced with the
!           link register.
  
!     `Rcc'
            Matches the integer condition code register.
  
!     `Sra'
            Matches the return address if it is in a stack slot.
  
!     `Cfm'
            Matches control register values to switch fp mode, which are
!           encapsulated in `UNSPEC_FP_MODE'.
! 
! _FRV--`config/frv/frv.h'_
  
!     `a'
!           Register in the class `ACC_REGS' (`acc0' to `acc7').
  
!     `b'
!           Register in the class `EVEN_ACC_REGS' (`acc0' to `acc7').
  
!     `c'
!           Register in the class `CC_REGS' (`fcc0' to `fcc3' and `icc0'
!           to `icc3').
  
!     `d'
!           Register in the class `GPR_REGS' (`gr0' to `gr63').
  
!     `e'
!           Register in the class `EVEN_REGS' (`gr0' to `gr63').  Odd
!           registers are excluded not in the class but through the use
!           of a machine mode larger than 4 bytes.
  
!     `f'
!           Register in the class `FPR_REGS' (`fr0' to `fr63').
  
!     `h'
!           Register in the class `FEVEN_REGS' (`fr0' to `fr63').  Odd
!           registers are excluded not in the class but through the use
!           of a machine mode larger than 4 bytes.
  
!     `l'
!           Register in the class `LR_REG' (the `lr' register).
  
!     `q'
!           Register in the class `QUAD_REGS' (`gr2' to `gr63').
!           Register numbers not divisible by 4 are excluded not in the
!           class but through the use of a machine mode larger than 8
!           bytes.
  
!     `t'
!           Register in the class `ICC_REGS' (`icc0' to `icc3').
  
!     `u'
!           Register in the class `FCC_REGS' (`fcc0' to `fcc3').
  
!     `v'
!           Register in the class `ICR_REGS' (`cc4' to `cc7').
  
!     `w'
!           Register in the class `FCR_REGS' (`cc0' to `cc3').
  
!     `x'
!           Register in the class `QUAD_FPR_REGS' (`fr0' to `fr63').
            Register numbers not divisible by 4 are excluded not in the
            class but through the use of a machine mode larger than 8
            bytes.
  
!     `z'
!           Register in the class `SPR_REGS' (`lcr' and `lr').
  
!     `A'
!           Register in the class `QUAD_ACC_REGS' (`acc0' to `acc7').
  
!     `B'
!           Register in the class `ACCG_REGS' (`accg0' to `accg7').
  
!     `C'
!           Register in the class `CR_REGS' (`cc0' to `cc7').
  
!     `G'
            Floating point constant zero
  
!     `I'
            6-bit signed integer constant
  
!     `J'
            10-bit signed integer constant
  
!     `L'
            16-bit signed integer constant
  
!     `M'
            16-bit unsigned integer constant
  
!     `N'
            12-bit signed integer constant that is negative--i.e. in the
            range of -2048 to -1
  
!     `O'
            Constant zero
  
!     `P'
!           12-bit signed integer constant that is greater than
!           zero--i.e. in the range of 1 to 2047.
! 
! 
! _FT32--`config/ft32/constraints.md'_
  
!     `A'
            An absolute address
  
!     `B'
            An offset address
  
!     `W'
            A register indirect memory operand
  
!     `e'
            An offset address.
  
!     `f'
            An offset address.
  
!     `O'
            The constant zero or one
  
!     `I'
            A 16-bit signed constant (-32768 ... 32767)
  
!     `w'
            A bitfield mask suitable for bext or bins
  
!     `x'
            An inverted bitfield mask suitable for bext or bins
  
!     `L'
            A 16-bit unsigned constant, multiple of 4 (0 ... 65532)
  
!     `S'
            A 20-bit signed constant (-524288 ... 524287)
  
!     `b'
            A constant for a bitfield width (1 ... 16)
  
!     `KA'
            A 10-bit signed constant (-512 ... 511)
  
! 
! _Hewlett-Packard PA-RISC--`config/pa/pa.h'_
! 
!     `a'
            General register 1
  
!     `f'
            Floating point register
  
!     `q'
            Shift amount register
  
!     `x'
            Floating point register (deprecated)
  
!     `y'
            Upper floating point register (32-bit), floating point
            register (64-bit)
  
!     `Z'
            Any register
  
!     `I'
            Signed 11-bit integer constant
  
!     `J'
            Signed 14-bit integer constant
  
!     `K'
!           Integer constant that can be deposited with a `zdepi'
            instruction
  
!     `L'
            Signed 5-bit integer constant
  
!     `M'
            Integer constant 0
  
!     `N'
!           Integer constant that can be loaded with a `ldil' instruction
  
!     `O'
            Integer constant whose value plus one is a power of 2
  
!     `P'
!           Integer constant that can be used for `and' operations in
!           `depi' and `extru' instructions
  
!     `S'
            Integer constant 31
  
!     `U'
            Integer constant 63
  
!     `G'
            Floating-point constant 0.0
  
!     `A'
!           A `lo_sum' data-linkage-table memory operand
  
!     `Q'
            A memory operand that can be used as the destination operand
            of an integer store instruction
  
!     `R'
            A scaled or unscaled indexed memory operand
  
!     `T'
            A memory operand for floating-point loads and stores
  
!     `W'
            A register indirect memory operand
  
! _Intel IA-64--`config/ia64/ia64.h'_
! 
!     `a'
!           General register `r0' to `r3' for `addl' instruction
  
!     `b'
            Branch register
  
!     `c'
!           Predicate register (`c' as in "conditional")
  
!     `d'
            Application register residing in M-unit
  
!     `e'
            Application register residing in I-unit
  
!     `f'
            Floating-point register
  
!     `m'
!           Memory operand.  If used together with `<' or `>', the
!           operand can have postincrement and postdecrement which
!           require printing with `%Pn' on IA-64.
  
!     `G'
            Floating-point constant 0.0 or 1.0
  
!     `I'
            14-bit signed integer constant
  
!     `J'
            22-bit signed integer constant
  
!     `K'
            8-bit signed integer constant for logical instructions
  
!     `L'
            8-bit adjusted signed integer constant for compare pseudo-ops
  
!     `M'
            6-bit unsigned integer constant for shift counts
  
!     `N'
            9-bit signed integer constant for load and store
            postincrements
  
!     `O'
            The constant zero
  
!     `P'
!           0 or -1 for `dep' instruction
  
!     `Q'
            Non-volatile memory for floating-point loads and stores
  
!     `R'
!           Integer constant in the range 1 to 4 for `shladd' instruction
  
!     `S'
            Memory operand except postincrement and postdecrement.  This
!           is now roughly the same as `m' when not used together with `<'
!           or `>'.
! 
! _M32C--`config/m32c/m32c.c'_
  
!     `Rsp'
!     `Rfb'
!     `Rsb'
!           `$sp', `$fb', `$sb'.
  
!     `Rcr'
            Any control register, when they're 16 bits wide (nothing if
            control registers are 24 bits wide)
  
!     `Rcl'
            Any control register, when they're 24 bits wide.
  
!     `R0w'
!     `R1w'
!     `R2w'
!     `R3w'
            $r0, $r1, $r2, $r3.
  
!     `R02'
            $r0 or $r2, or $r2r0 for 32 bit values.
  
!     `R13'
            $r1 or $r3, or $r3r1 for 32 bit values.
  
!     `Rdi'
            A register that can hold a 64 bit value.
  
!     `Rhl'
            $r0 or $r1 (registers with addressable high/low bytes)
  
!     `R23'
            $r2 or $r3
  
!     `Raa'
            Address registers
  
!     `Raw'
            Address registers when they're 16 bits wide.
  
!     `Ral'
            Address registers when they're 24 bits wide.
  
!     `Rqi'
            Registers that can hold QI values.
  
!     `Rad'
            Registers that can be used with displacements ($a0, $a1, $sb).
  
!     `Rsi'
            Registers that can hold 32 bit values.
  
!     `Rhi'
            Registers that can hold 16 bit values.
  
!     `Rhc'
            Registers chat can hold 16 bit values, including all control
            registers.
  
!     `Rra'
            $r0 through R1, plus $a0 and $a1.
  
!     `Rfl'
            The flags register.
  
!     `Rmm'
            The memory-based pseudo-registers $mem0 through $mem15.
  
!     `Rpi'
            Registers that can hold pointers (16 bit registers for r8c,
            m16c; 24 bit registers for m32cm, m32c).
  
!     `Rpa'
            Matches multiple registers in a PARALLEL to form a larger
            register.  Used to match function return values.
  
!     `Is3'
            -8 ... 7
  
!     `IS1'
            -128 ... 127
  
!     `IS2'
            -32768 ... 32767
  
!     `IU2'
            0 ... 65535
  
!     `In4'
            -8 ... -1 or 1 ... 8
  
!     `In5'
            -16 ... -1 or 1 ... 16
  
!     `In6'
            -32 ... -1 or 1 ... 32
  
!     `IM2'
            -65536 ... -1
  
!     `Ilb'
            An 8 bit value with exactly one bit set.
  
!     `Ilw'
            A 16 bit value with exactly one bit set.
  
!     `Sd'
            The common src/dest memory addressing modes.
  
!     `Sa'
            Memory addressed using $a0 or $a1.
  
!     `Si'
            Memory addressed with immediate addresses.
  
!     `Ss'
            Memory addressed using the stack pointer ($sp).
  
!     `Sf'
            Memory addressed using the frame base register ($fb).
  
!     `Ss'
            Memory addressed using the small base register ($sb).
  
!     `S1'
            $r1h
  
! _MeP--`config/mep/constraints.md'_
  
!     `a'
            The $sp register.
  
!     `b'
            The $tp register.
  
!     `c'
            Any control register.
  
!     `d'
            Either the $hi or the $lo register.
  
!     `em'
            Coprocessor registers that can be directly loaded ($c0-$c15).
  
!     `ex'
            Coprocessor registers that can be moved to each other.
  
!     `er'
            Coprocessor registers that can be moved to core registers.
  
!     `h'
            The $hi register.
  
!     `j'
            The $rpc register.
  
!     `l'
            The $lo register.
  
!     `t'
            Registers which can be used in $tp-relative addressing.
  
!     `v'
            The $gp register.
  
!     `x'
            The coprocessor registers.
  
!     `y'
            The coprocessor control registers.
  
!     `z'
            The $0 register.
  
!     `A'
            User-defined register set A.
  
!     `B'
            User-defined register set B.
  
!     `C'
            User-defined register set C.
  
!     `D'
            User-defined register set D.
  
!     `I'
            Offsets for $gp-rel addressing.
  
!     `J'
            Constants that can be used directly with boolean insns.
  
!     `K'
            Constants that can be moved directly to registers.
  
!     `L'
            Small constants that can be added to registers.
  
!     `M'
            Long shift counts.
  
!     `N'
            Small constants that can be compared to registers.
  
!     `O'
            Constants that can be loaded into the top half of registers.
  
!     `S'
            Signed 8-bit immediates.
  
!     `T'
            Symbols encoded for $tp-rel or $gp-rel addressing.
  
!     `U'
            Non-constant addresses for loading/saving coprocessor
            registers.
  
!     `W'
            The top half of a symbol's value.
  
!     `Y'
            A register indirect address without offset.
  
!     `Z'
            Symbolic references to the control bus.
  
  
! _MicroBlaze--`config/microblaze/constraints.md'_
! 
!     `d'
!           A general register (`r0' to `r31').
! 
!     `z'
!           A status register (`rmsr', `$fcc1' to `$fcc7').
! 
! 
! _MIPS--`config/mips/constraints.md'_
  
!     `d'
!           An address register.  This is equivalent to `r' unless
            generating MIPS16 code.
  
!     `f'
            A floating-point register (if available).
  
!     `h'
!           Formerly the `hi' register.  This constraint is no longer
            supported.
  
!     `l'
!           The `lo' register.  Use this register to store values that are
            no bigger than a word.
  
!     `x'
!           The concatenated `hi' and `lo' registers.  Use this register
            to store doubleword values.
  
!     `c'
            A register suitable for use in an indirect jump.  This will
!           always be `$25' for `-mabicalls'.
  
!     `v'
!           Register `$3'.  Do not use this constraint in new code; it is
            retained only for compatibility with glibc.
  
!     `y'
!           Equivalent to `r'; retained for backwards compatibility.
  
!     `z'
            A floating-point condition code register.
  
!     `I'
            A signed 16-bit constant (for arithmetic instructions).
  
!     `J'
            Integer zero.
  
!     `K'
            An unsigned 16-bit constant (for logic instructions).
  
!     `L'
            A signed 32-bit constant in which the lower 16 bits are zero.
!           Such constants can be loaded using `lui'.
  
!     `M'
!           A constant that cannot be loaded using `lui', `addiu' or
!           `ori'.
  
!     `N'
            A constant in the range -65535 to -1 (inclusive).
  
!     `O'
            A signed 15-bit constant.
  
!     `P'
            A constant in the range 1 to 65535 (inclusive).
  
!     `G'
            Floating-point zero.
  
!     `R'
            An address that can be used in a non-macro load or store.
  
!     `ZC'
            A memory operand whose address is formed by a base register
            and offset that is suitable for use in instructions with the
!           same addressing mode as `ll' and `sc'.
! 
!     `ZD'
!           An address suitable for a `prefetch' instruction, or for any
!           other instruction with the same addressing mode as `prefetch'.
  
! _Motorola 680x0--`config/m68k/constraints.md'_
  
!     `a'
            Address register
  
!     `d'
            Data register
  
!     `f'
            68881 floating-point register, if available
  
!     `I'
            Integer in the range 1 to 8
  
!     `J'
            16-bit signed number
  
!     `K'
            Signed number whose magnitude is greater than 0x80
  
!     `L'
            Integer in the range -8 to -1
  
!     `M'
            Signed number whose magnitude is greater than 0x100
  
!     `N'
            Range 24 to 31, rotatert:SI 8 to 1 expressed as rotate
  
!     `O'
            16 (for rotate using swap)
  
!     `P'
            Range 8 to 15, rotatert:HI 8 to 1 expressed as rotate
  
!     `R'
            Numbers that mov3q can handle
  
!     `G'
            Floating point constant that is not a 68881 constant
  
!     `S'
            Operands that satisfy 'm' when -mpcrel is in effect
  
!     `T'
            Operands that satisfy 's' when -mpcrel is not in effect
  
!     `Q'
            Address register indirect addressing mode
  
!     `U'
            Register offset addressing
  
!     `W'
            const_call_operand
  
!     `Cs'
            symbol_ref or const
  
!     `Ci'
            const_int
  
!     `C0'
            const_int 0
  
!     `Cj'
            Range of signed numbers that don't fit in 16 bits
  
!     `Cmvq'
            Integers valid for mvq
  
!     `Capsw'
            Integers valid for a moveq followed by a swap
  
!     `Cmvz'
            Integers valid for mvz
  
!     `Cmvs'
            Integers valid for mvs
  
!     `Ap'
            push_operand
  
!     `Ac'
            Non-register operands allowed in clr
  
! 
! _Moxie--`config/moxie/constraints.md'_
! 
!     `A'
            An absolute address
  
!     `B'
            An offset address
  
!     `W'
            A register indirect memory operand
  
!     `I'
            A constant in the range of 0 to 255.
  
!     `N'
            A constant in the range of 0 to -255.
  
  
! _MSP430-`config/msp430/constraints.md'_
! 
!     `R12'
            Register R12.
  
!     `R13'
            Register R13.
  
!     `K'
            Integer constant 1.
  
!     `L'
            Integer constant -1^20..1^19.
  
!     `M'
            Integer constant 1-4.
  
!     `Ya'
            Memory references which do not require an extended MOVX
            instruction.
  
!     `Yl'
            Memory reference, labels only.
  
!     `Ys'
            Memory reference, stack only.
  
! 
! _NDS32--`config/nds32/constraints.md'_
! 
!     `w'
            LOW register class $r0 to $r7 constraint for V3/V3M ISA.
! 
!     `l'
            LOW register class $r0 to $r7.
! 
!     `d'
            MIDDLE register class $r0 to $r11, $r16 to $r19.
! 
!     `h'
            HIGH register class $r12 to $r14, $r20 to $r31.
! 
!     `t'
            Temporary assist register $ta (i.e. $r15).
! 
!     `k'
            Stack register $sp.
! 
!     `Iu03'
            Unsigned immediate 3-bit value.
! 
!     `In03'
            Negative immediate 3-bit value in the range of -7-0.
! 
!     `Iu04'
            Unsigned immediate 4-bit value.
! 
!     `Is05'
            Signed immediate 5-bit value.
! 
!     `Iu05'
            Unsigned immediate 5-bit value.
! 
!     `In05'
            Negative immediate 5-bit value in the range of -31-0.
! 
!     `Ip05'
            Unsigned immediate 5-bit value for movpi45 instruction with
            range 16-47.
! 
!     `Iu06'
            Unsigned immediate 6-bit value constraint for addri36.sp
            instruction.
! 
!     `Iu08'
            Unsigned immediate 8-bit value.
! 
!     `Iu09'
            Unsigned immediate 9-bit value.
! 
!     `Is10'
            Signed immediate 10-bit value.
! 
!     `Is11'
            Signed immediate 11-bit value.
! 
!     `Is15'
            Signed immediate 15-bit value.
! 
!     `Iu15'
            Unsigned immediate 15-bit value.
! 
!     `Ic15'
!           A constant which is not in the range of imm15u but ok for
!           bclr instruction.
! 
!     `Ie15'
!           A constant which is not in the range of imm15u but ok for
!           bset instruction.
! 
!     `It15'
!           A constant which is not in the range of imm15u but ok for
!           btgl instruction.
! 
!     `Ii15'
            A constant whose compliment value is in the range of imm15u
            and ok for bitci instruction.
! 
!     `Is16'
            Signed immediate 16-bit value.
! 
!     `Is17'
            Signed immediate 17-bit value.
! 
!     `Is19'
            Signed immediate 19-bit value.
! 
!     `Is20'
            Signed immediate 20-bit value.
! 
!     `Ihig'
            The immediate value that can be simply set high 20-bit.
! 
!     `Izeb'
            The immediate value 0xff.
! 
!     `Izeh'
            The immediate value 0xffff.
! 
!     `Ixls'
            The immediate value 0x01.
! 
!     `Ix11'
            The immediate value 0x7ff.
! 
!     `Ibms'
            The immediate value with power of 2.
! 
!     `Ifex'
            The immediate value with power of 2 minus 1.
! 
!     `U33'
            Memory constraint for 333 format.
! 
!     `U45'
            Memory constraint for 45 format.
! 
!     `U37'
            Memory constraint for 37 format.
  
! _Nios II family--`config/nios2/constraints.md'_
  
!     `I'
            Integer that is valid as an immediate operand in an
!           instruction taking a signed 16-bit number. Range -32768 to
            32767.
  
!     `J'
            Integer that is valid as an immediate operand in an
!           instruction taking an unsigned 16-bit number. Range 0 to
            65535.
  
!     `K'
            Integer that is valid as an immediate operand in an
            instruction taking only the upper 16-bits of a 32-bit number.
            Range 32-bit numbers with the lower 16-bits being 0.
  
!     `L'
            Integer that is valid as an immediate operand for a shift
!           instruction. Range 0 to 31.
  
!     `M'
            Integer that is valid as an immediate operand for only the
!           value 0. Can be used in conjunction with the format modifier
!           `z' to use `r0' instead of `0' in the assembly output.
  
!     `N'
            Integer that is valid as an immediate operand for a custom
!           instruction opcode. Range 0 to 255.
  
!     `P'
            An immediate operand for R2 andchi/andci instructions.
  
!     `S'
            Matches immediates which are addresses in the small data
!           section and therefore can be added to `gp' as a 16-bit
            immediate to re-create their 32-bit value.
  
!     `U'
            Matches constants suitable as an operand for the rdprs and
            cache instructions.
  
!     `v'
            A memory operand suitable for Nios II R2 load/store exclusive
            instructions.
  
!     `w'
            A memory operand suitable for load/store IO and cache
            instructions.
  
!     `T'
!           A `const' wrapped `UNSPEC' expression, representing a
            supported PIC or TLS relocation.
  
  
! _PDP-11--`config/pdp11/constraints.md'_
! 
!     `a'
!           Floating point registers AC0 through AC3.  These can be
!           loaded from/to memory with a single instruction.
! 
!     `d'
            Odd numbered general registers (R1, R3, R5).  These are used
            for 16-bit multiply operations.
  
!     `f'
            Any of the floating point registers (AC0 through AC5).
  
!     `G'
            Floating point constant 0.
  
!     `I'
            An integer constant that fits in 16 bits.
  
!     `J'
            An integer constant whose low order 16 bits are zero.
  
!     `K'
            An integer constant that does not meet the constraints for
!           codes `I' or `J'.
  
!     `L'
            The integer constant 1.
  
!     `M'
            The integer constant -1.
  
!     `N'
            The integer constant 0.
  
!     `O'
            Integer constants -4 through -1 and 1 through 4; shifts by
!           these amounts are handled as multiple single-bit shifts
!           rather than a single variable-length shift.
  
!     `Q'
            A memory reference which requires an additional word (address
            or offset) after the opcode.
  
!     `R'
            A memory reference that is encoded within the opcode.
  
! 
! _PowerPC and IBM RS6000--`config/rs6000/constraints.md'_
! 
!     `b'
            Address base register
  
!     `d'
            Floating point register (containing 64-bit value)
  
!     `f'
            Floating point register (containing 32-bit value)
  
!     `v'
            Altivec vector register
  
!     `wa'
            Any VSX register if the -mvsx option was used or NO_REGS.
  
!           When using any of the register constraints (`wa', `wd', `wf',
!           `wg', `wh', `wi', `wj', `wk', `wl', `wm', `wo', `wp', `wq',
!           `ws', `wt', `wu', `wv', `ww', or `wy') that take VSX
!           registers, you must use `%x<n>' in the template so that the
            correct register is used.  Otherwise the register number
            output in the assembly file will be incorrect if an Altivec
            register is an operand of a VSX instruction that expects VSX
--- 19878,21261 ----
  ------------------------------------------
  
  Whenever possible, you should use the general-purpose constraint letters
! in 'asm' arguments, since they will convey meaning more readily to
! people reading your code.  Failing that, use the constraint letters that
! usually have very similar meanings across architectures.  The most
! commonly used constraints are 'm' and 'r' (for memory and
  general-purpose registers respectively; *note Simple Constraints::), and
! 'I', usually the letter indicating the most common immediate-constant
  format.
  
   Each architecture defines additional constraints.  These constraints
  are used by the compiler itself for instruction generation, as well as
! for 'asm' statements; therefore, some of the constraints are not
! particularly useful for 'asm'.  Here is a summary of some of the
  machine-dependent constraints available on some particular machines; it
! includes both constraints that are useful for 'asm' and constraints that
! aren't.  The compiler source file mentioned in the table heading for
! each architecture is the definitive reference for the meanings of that
! architecture's constraints.
  
! _AArch64 family--'config/aarch64/constraints.md'_
!      'k'
!           The stack pointer register ('SP')
  
!      'w'
            Floating point or SIMD vector register
  
!      'I'
            Integer constant that is valid as an immediate operand in an
!           'ADD' instruction
  
!      'J'
            Integer constant that is valid as an immediate operand in a
!           'SUB' instruction (once negated)
  
!      'K'
            Integer constant that can be used with a 32-bit logical
            instruction
  
!      'L'
            Integer constant that can be used with a 64-bit logical
            instruction
  
!      'M'
            Integer constant that is valid as an immediate operand in a
!           32-bit 'MOV' pseudo instruction.  The 'MOV' may be assembled
            to one of several different machine instructions depending on
            the value
  
!      'N'
            Integer constant that is valid as an immediate operand in a
!           64-bit 'MOV' pseudo instruction
  
!      'S'
            An absolute symbolic address or a label reference
  
!      'Y'
            Floating point constant zero
  
!      'Z'
            Integer constant zero
  
!      'Ush'
!           The high part (bits 12 and upwards) of the pc-relative address
!           of a symbol within 4GB of the instruction
  
!      'Q'
            A memory address which uses a single base register with no
            offset
  
!      'Ump'
!           A memory address suitable for a load/store pair instruction in
!           SI, DI, SF and DF modes
  
! _ARC --'config/arc/constraints.md'_
!      'q'
!           Registers usable in ARCompact 16-bit instructions: 'r0'-'r3',
!           'r12'-'r15'.  This constraint can only match when the '-mq'
            option is in effect.
  
!      'e'
!           Registers usable as base-regs of memory addresses in ARCompact
!           16-bit memory instructions: 'r0'-'r3', 'r12'-'r15', 'sp'.
!           This constraint can only match when the '-mq' option is in
!           effect.
!      'D'
!           ARC FPX (dpfp) 64-bit registers.  'D0', 'D1'.
  
!      'I'
            A signed 12-bit integer constant.
  
!      'Cal'
!           constant for arithmetic/logical operations.  This might be any
!           constant that can be put into a long immediate by the assmbler
!           or linker without involving a PIC relocation.
  
!      'K'
            A 3-bit unsigned integer constant.
  
!      'L'
            A 6-bit unsigned integer constant.
  
!      'CnL'
            One's complement of a 6-bit unsigned integer constant.
  
!      'CmL'
            Two's complement of a 6-bit unsigned integer constant.
  
!      'M'
            A 5-bit unsigned integer constant.
  
!      'O'
            A 7-bit unsigned integer constant.
  
!      'P'
            A 8-bit unsigned integer constant.
  
!      'H'
            Any const_double value.
  
! _ARM family--'config/arm/constraints.md'_
  
!      'h'
!           In Thumb state, the core registers 'r8'-'r15'.
  
!      'k'
            The stack pointer register.
  
!      'l'
!           In Thumb State the core registers 'r0'-'r7'.  In ARM state
!           this is an alias for the 'r' constraint.
  
!      't'
!           VFP floating-point registers 's0'-'s31'.  Used for 32 bit
            values.
  
!      'w'
!           VFP floating-point registers 'd0'-'d31' and the appropriate
!           subset 'd0'-'d15' based on command line options.  Used for 64
            bit values only.  Not valid for Thumb1.
  
!      'y'
            The iWMMX co-processor registers.
  
!      'z'
            The iWMMX GR registers.
  
!      'G'
            The floating-point constant 0.0
  
!      'I'
            Integer that is valid as an immediate operand in a data
!           processing instruction.  That is, an integer in the range 0 to
!           255 rotated by a multiple of 2
  
!      'J'
            Integer in the range -4095 to 4095
  
!      'K'
!           Integer that satisfies constraint 'I' when inverted (ones
            complement)
  
!      'L'
!           Integer that satisfies constraint 'I' when negated (twos
            complement)
  
!      'M'
            Integer in the range 0 to 32
  
!      'Q'
            A memory reference where the exact address is in a single
!           register (''m'' is preferable for 'asm' statements)
  
!      'R'
            An item in the constant pool
  
!      'S'
            A symbol in the text segment of the current file
  
!      'Uv'
            A memory reference suitable for VFP load/store insns
            (reg+constant offset)
  
!      'Uy'
            A memory reference suitable for iWMMXt load/store
            instructions.
  
!      'Uq'
            A memory reference suitable for the ARMv4 ldrsb instruction.
  
! _AVR family--'config/avr/constraints.md'_
!      'l'
            Registers from r0 to r15
  
!      'a'
            Registers from r16 to r23
  
!      'd'
            Registers from r16 to r31
  
!      'w'
            Registers from r24 to r31.  These registers can be used in
!           'adiw' command
  
!      'e'
            Pointer register (r26-r31)
  
!      'b'
            Base pointer register (r28-r31)
  
!      'q'
            Stack pointer register (SPH:SPL)
  
!      't'
            Temporary register r0
  
!      'x'
            Register pair X (r27:r26)
  
!      'y'
            Register pair Y (r29:r28)
  
!      'z'
            Register pair Z (r31:r30)
  
!      'I'
            Constant greater than -1, less than 64
  
!      'J'
            Constant greater than -64, less than 1
  
!      'K'
            Constant integer 2
  
!      'L'
            Constant integer 0
  
!      'M'
            Constant that fits in 8 bits
  
!      'N'
            Constant integer -1
  
!      'O'
            Constant integer 8, 16, or 24
  
!      'P'
            Constant integer 1
  
!      'G'
            A floating point constant 0.0
  
!      'Q'
            A memory address based on Y or Z pointer with displacement.
  
! _Blackfin family--'config/bfin/constraints.md'_
!      'a'
            P register
  
!      'd'
            D register
  
!      'z'
            A call clobbered P register.
  
!      'qN'
            A single register.  If N is in the range 0 to 7, the
!           corresponding D register.  If it is 'A', then the register P0.
  
!      'D'
            Even-numbered D register
  
!      'W'
            Odd-numbered D register
  
!      'e'
            Accumulator register.
  
!      'A'
            Even-numbered accumulator register.
  
!      'B'
            Odd-numbered accumulator register.
  
!      'b'
            I register
  
!      'v'
            B register
  
!      'f'
            M register
  
!      'c'
!           Registers used for circular buffering, i.e.  I, B, or L
            registers.
  
!      'C'
            The CC register.
  
!      't'
            LT0 or LT1.
  
!      'k'
            LC0 or LC1.
  
!      'u'
            LB0 or LB1.
  
!      'x'
            Any D, P, B, M, I or L register.
  
!      'y'
            Additional registers typically used only in prologues and
            epilogues: RETS, RETN, RETI, RETX, RETE, ASTAT, SEQSTAT and
            USP.
  
!      'w'
            Any register except accumulators or CC.
  
!      'Ksh'
            Signed 16 bit integer (in the range -32768 to 32767)
  
!      'Kuh'
            Unsigned 16 bit integer (in the range 0 to 65535)
  
!      'Ks7'
            Signed 7 bit integer (in the range -64 to 63)
  
!      'Ku7'
            Unsigned 7 bit integer (in the range 0 to 127)
  
!      'Ku5'
            Unsigned 5 bit integer (in the range 0 to 31)
  
!      'Ks4'
            Signed 4 bit integer (in the range -8 to 7)
  
!      'Ks3'
            Signed 3 bit integer (in the range -3 to 4)
  
!      'Ku3'
            Unsigned 3 bit integer (in the range 0 to 7)
  
!      'PN'
            Constant N, where N is a single-digit constant in the range 0
            to 4.
  
!      'PA'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use with either accumulator.
  
!      'PB'
            An integer equal to one of the MACFLAG_XXX constants that is
            suitable for use only with accumulator A1.
  
!      'M1'
            Constant 255.
  
!      'M2'
            Constant 65535.
  
!      'J'
            An integer constant with exactly a single bit set.
  
!      'L'
            An integer constant with all bits set except exactly one.
  
!      'H'
  
!      'Q'
            Any SYMBOL_REF.
  
! _CR16 Architecture--'config/cr16/cr16.h'_
  
!      'b'
            Registers from r0 to r14 (registers without stack pointer)
  
!      't'
            Register from r0 to r11 (all 16-bit registers)
  
!      'p'
            Register from r12 to r15 (all 32-bit registers)
  
!      'I'
            Signed constant that fits in 4 bits
  
!      'J'
            Signed constant that fits in 5 bits
  
!      'K'
            Signed constant that fits in 6 bits
  
!      'L'
            Unsigned constant that fits in 4 bits
  
!      'M'
            Signed constant that fits in 32 bits
  
!      'N'
            Check for 64 bits wide constants for add/sub instructions
  
!      'G'
            Floating point constant that is legal for store immediate
  
! _Epiphany--'config/epiphany/constraints.md'_
!      'U16'
            An unsigned 16-bit constant.
  
!      'K'
            An unsigned 5-bit constant.
  
!      'L'
            A signed 11-bit constant.
  
!      'Cm1'
!           A signed 11-bit constant added to -1.  Can only match when the
!           '-m1reg-REG' option is active.
  
!      'Cl1'
            Left-shift of -1, i.e., a bit mask with a block of leading
            ones, the rest being a block of trailing zeroes.  Can only
!           match when the '-m1reg-REG' option is active.
  
!      'Cr1'
            Right-shift of -1, i.e., a bit mask with a trailing block of
            ones, the rest being zeroes.  Or to put it another way, one
            less than a power of two.  Can only match when the
!           '-m1reg-REG' option is active.
  
!      'Cal'
!           Constant for arithmetic/logical operations.  This is like 'i',
!           except that for position independent code, no symbols /
            expressions needing relocations are allowed.
  
!      'Csy'
            Symbolic constant for call/jump instruction.
  
!      'Rcs'
            The register class usable in short insns.  This is a register
            class constraint, and can thus drive register allocation.
!           This constraint won't match unless '-mprefer-short-insn-regs'
            is in effect.
  
!      'Rsc'
            The the register class of registers that can be used to hold a
            sibcall call address.  I.e., a caller-saved register.
  
!      'Rct'
            Core control register class.
  
!      'Rgs'
            The register group usable in short insns.  This constraint
            does not use a register class, so that it only passively
            matches suitable registers, and doesn't drive register
            allocation.
  
!      'Car'
            Constant suitable for the addsi3_r pattern.  This is a valid
            offset For byte, halfword, or word addressing.
  
!      'Rra'
!           Matches the return address if it can be replaced with the link
!           register.
  
!      'Rcc'
            Matches the integer condition code register.
  
!      'Sra'
            Matches the return address if it is in a stack slot.
  
!      'Cfm'
            Matches control register values to switch fp mode, which are
!           encapsulated in 'UNSPEC_FP_MODE'.
  
! _FRV--'config/frv/frv.h'_
!      'a'
!           Register in the class 'ACC_REGS' ('acc0' to 'acc7').
  
!      'b'
!           Register in the class 'EVEN_ACC_REGS' ('acc0' to 'acc7').
  
!      'c'
!           Register in the class 'CC_REGS' ('fcc0' to 'fcc3' and 'icc0'
!           to 'icc3').
  
!      'd'
!           Register in the class 'GPR_REGS' ('gr0' to 'gr63').
  
!      'e'
!           Register in the class 'EVEN_REGS' ('gr0' to 'gr63').  Odd
!           registers are excluded not in the class but through the use of
!           a machine mode larger than 4 bytes.
  
!      'f'
!           Register in the class 'FPR_REGS' ('fr0' to 'fr63').
  
!      'h'
!           Register in the class 'FEVEN_REGS' ('fr0' to 'fr63').  Odd
!           registers are excluded not in the class but through the use of
!           a machine mode larger than 4 bytes.
  
!      'l'
!           Register in the class 'LR_REG' (the 'lr' register).
  
!      'q'
!           Register in the class 'QUAD_REGS' ('gr2' to 'gr63').  Register
!           numbers not divisible by 4 are excluded not in the class but
!           through the use of a machine mode larger than 8 bytes.
  
!      't'
!           Register in the class 'ICC_REGS' ('icc0' to 'icc3').
  
!      'u'
!           Register in the class 'FCC_REGS' ('fcc0' to 'fcc3').
  
!      'v'
!           Register in the class 'ICR_REGS' ('cc4' to 'cc7').
  
!      'w'
!           Register in the class 'FCR_REGS' ('cc0' to 'cc3').
  
!      'x'
!           Register in the class 'QUAD_FPR_REGS' ('fr0' to 'fr63').
            Register numbers not divisible by 4 are excluded not in the
            class but through the use of a machine mode larger than 8
            bytes.
  
!      'z'
!           Register in the class 'SPR_REGS' ('lcr' and 'lr').
  
!      'A'
!           Register in the class 'QUAD_ACC_REGS' ('acc0' to 'acc7').
  
!      'B'
!           Register in the class 'ACCG_REGS' ('accg0' to 'accg7').
  
!      'C'
!           Register in the class 'CR_REGS' ('cc0' to 'cc7').
  
!      'G'
            Floating point constant zero
  
!      'I'
            6-bit signed integer constant
  
!      'J'
            10-bit signed integer constant
  
!      'L'
            16-bit signed integer constant
  
!      'M'
            16-bit unsigned integer constant
  
!      'N'
            12-bit signed integer constant that is negative--i.e. in the
            range of -2048 to -1
  
!      'O'
            Constant zero
  
!      'P'
!           12-bit signed integer constant that is greater than zero--i.e.
!           in the range of 1 to 2047.
  
! _FT32--'config/ft32/constraints.md'_
!      'A'
            An absolute address
  
!      'B'
            An offset address
  
!      'W'
            A register indirect memory operand
  
!      'e'
            An offset address.
  
!      'f'
            An offset address.
  
!      'O'
            The constant zero or one
  
!      'I'
            A 16-bit signed constant (-32768 ... 32767)
  
!      'w'
            A bitfield mask suitable for bext or bins
  
!      'x'
            An inverted bitfield mask suitable for bext or bins
  
!      'L'
            A 16-bit unsigned constant, multiple of 4 (0 ... 65532)
  
!      'S'
            A 20-bit signed constant (-524288 ... 524287)
  
!      'b'
            A constant for a bitfield width (1 ... 16)
  
!      'KA'
            A 10-bit signed constant (-512 ... 511)
  
! _Hewlett-Packard PA-RISC--'config/pa/pa.h'_
!      'a'
            General register 1
  
!      'f'
            Floating point register
  
!      'q'
            Shift amount register
  
!      'x'
            Floating point register (deprecated)
  
!      'y'
            Upper floating point register (32-bit), floating point
            register (64-bit)
  
!      'Z'
            Any register
  
!      'I'
            Signed 11-bit integer constant
  
!      'J'
            Signed 14-bit integer constant
  
!      'K'
!           Integer constant that can be deposited with a 'zdepi'
            instruction
  
!      'L'
            Signed 5-bit integer constant
  
!      'M'
            Integer constant 0
  
!      'N'
!           Integer constant that can be loaded with a 'ldil' instruction
  
!      'O'
            Integer constant whose value plus one is a power of 2
  
!      'P'
!           Integer constant that can be used for 'and' operations in
!           'depi' and 'extru' instructions
  
!      'S'
            Integer constant 31
  
!      'U'
            Integer constant 63
  
!      'G'
            Floating-point constant 0.0
  
!      'A'
!           A 'lo_sum' data-linkage-table memory operand
  
!      'Q'
            A memory operand that can be used as the destination operand
            of an integer store instruction
  
!      'R'
            A scaled or unscaled indexed memory operand
  
!      'T'
            A memory operand for floating-point loads and stores
  
!      'W'
            A register indirect memory operand
  
! _Intel IA-64--'config/ia64/ia64.h'_
!      'a'
!           General register 'r0' to 'r3' for 'addl' instruction
  
!      'b'
            Branch register
  
!      'c'
!           Predicate register ('c' as in "conditional")
  
!      'd'
            Application register residing in M-unit
  
!      'e'
            Application register residing in I-unit
  
!      'f'
            Floating-point register
  
!      'm'
!           Memory operand.  If used together with '<' or '>', the operand
!           can have postincrement and postdecrement which require
!           printing with '%Pn' on IA-64.
  
!      'G'
            Floating-point constant 0.0 or 1.0
  
!      'I'
            14-bit signed integer constant
  
!      'J'
            22-bit signed integer constant
  
!      'K'
            8-bit signed integer constant for logical instructions
  
!      'L'
            8-bit adjusted signed integer constant for compare pseudo-ops
  
!      'M'
            6-bit unsigned integer constant for shift counts
  
!      'N'
            9-bit signed integer constant for load and store
            postincrements
  
!      'O'
            The constant zero
  
!      'P'
!           0 or -1 for 'dep' instruction
  
!      'Q'
            Non-volatile memory for floating-point loads and stores
  
!      'R'
!           Integer constant in the range 1 to 4 for 'shladd' instruction
  
!      'S'
            Memory operand except postincrement and postdecrement.  This
!           is now roughly the same as 'm' when not used together with '<'
!           or '>'.
  
! _M32C--'config/m32c/m32c.c'_
!      'Rsp'
!      'Rfb'
!      'Rsb'
!           '$sp', '$fb', '$sb'.
  
!      'Rcr'
            Any control register, when they're 16 bits wide (nothing if
            control registers are 24 bits wide)
  
!      'Rcl'
            Any control register, when they're 24 bits wide.
  
!      'R0w'
!      'R1w'
!      'R2w'
!      'R3w'
            $r0, $r1, $r2, $r3.
  
!      'R02'
            $r0 or $r2, or $r2r0 for 32 bit values.
  
!      'R13'
            $r1 or $r3, or $r3r1 for 32 bit values.
  
!      'Rdi'
            A register that can hold a 64 bit value.
  
!      'Rhl'
            $r0 or $r1 (registers with addressable high/low bytes)
  
!      'R23'
            $r2 or $r3
  
!      'Raa'
            Address registers
  
!      'Raw'
            Address registers when they're 16 bits wide.
  
!      'Ral'
            Address registers when they're 24 bits wide.
  
!      'Rqi'
            Registers that can hold QI values.
  
!      'Rad'
            Registers that can be used with displacements ($a0, $a1, $sb).
  
!      'Rsi'
            Registers that can hold 32 bit values.
  
!      'Rhi'
            Registers that can hold 16 bit values.
  
!      'Rhc'
            Registers chat can hold 16 bit values, including all control
            registers.
  
!      'Rra'
            $r0 through R1, plus $a0 and $a1.
  
!      'Rfl'
            The flags register.
  
!      'Rmm'
            The memory-based pseudo-registers $mem0 through $mem15.
  
!      'Rpi'
            Registers that can hold pointers (16 bit registers for r8c,
            m16c; 24 bit registers for m32cm, m32c).
  
!      'Rpa'
            Matches multiple registers in a PARALLEL to form a larger
            register.  Used to match function return values.
  
!      'Is3'
            -8 ... 7
  
!      'IS1'
            -128 ... 127
  
!      'IS2'
            -32768 ... 32767
  
!      'IU2'
            0 ... 65535
  
!      'In4'
            -8 ... -1 or 1 ... 8
  
!      'In5'
            -16 ... -1 or 1 ... 16
  
!      'In6'
            -32 ... -1 or 1 ... 32
  
!      'IM2'
            -65536 ... -1
  
!      'Ilb'
            An 8 bit value with exactly one bit set.
  
!      'Ilw'
            A 16 bit value with exactly one bit set.
  
!      'Sd'
            The common src/dest memory addressing modes.
  
!      'Sa'
            Memory addressed using $a0 or $a1.
  
!      'Si'
            Memory addressed with immediate addresses.
  
!      'Ss'
            Memory addressed using the stack pointer ($sp).
  
!      'Sf'
            Memory addressed using the frame base register ($fb).
  
!      'Ss'
            Memory addressed using the small base register ($sb).
  
!      'S1'
            $r1h
  
! _MeP--'config/mep/constraints.md'_
  
!      'a'
            The $sp register.
  
!      'b'
            The $tp register.
  
!      'c'
            Any control register.
  
!      'd'
            Either the $hi or the $lo register.
  
!      'em'
            Coprocessor registers that can be directly loaded ($c0-$c15).
  
!      'ex'
            Coprocessor registers that can be moved to each other.
  
!      'er'
            Coprocessor registers that can be moved to core registers.
  
!      'h'
            The $hi register.
  
!      'j'
            The $rpc register.
  
!      'l'
            The $lo register.
  
!      't'
            Registers which can be used in $tp-relative addressing.
  
!      'v'
            The $gp register.
  
!      'x'
            The coprocessor registers.
  
!      'y'
            The coprocessor control registers.
  
!      'z'
            The $0 register.
  
!      'A'
            User-defined register set A.
  
!      'B'
            User-defined register set B.
  
!      'C'
            User-defined register set C.
  
!      'D'
            User-defined register set D.
  
!      'I'
            Offsets for $gp-rel addressing.
  
!      'J'
            Constants that can be used directly with boolean insns.
  
!      'K'
            Constants that can be moved directly to registers.
  
!      'L'
            Small constants that can be added to registers.
  
!      'M'
            Long shift counts.
  
!      'N'
            Small constants that can be compared to registers.
  
!      'O'
            Constants that can be loaded into the top half of registers.
  
!      'S'
            Signed 8-bit immediates.
  
!      'T'
            Symbols encoded for $tp-rel or $gp-rel addressing.
  
!      'U'
            Non-constant addresses for loading/saving coprocessor
            registers.
  
!      'W'
            The top half of a symbol's value.
  
!      'Y'
            A register indirect address without offset.
  
!      'Z'
            Symbolic references to the control bus.
  
+ _MicroBlaze--'config/microblaze/constraints.md'_
+      'd'
+           A general register ('r0' to 'r31').
  
!      'z'
!           A status register ('rmsr', '$fcc1' to '$fcc7').
  
! _MIPS--'config/mips/constraints.md'_
!      'd'
!           An address register.  This is equivalent to 'r' unless
            generating MIPS16 code.
  
!      'f'
            A floating-point register (if available).
  
!      'h'
!           Formerly the 'hi' register.  This constraint is no longer
            supported.
  
!      'l'
!           The 'lo' register.  Use this register to store values that are
            no bigger than a word.
  
!      'x'
!           The concatenated 'hi' and 'lo' registers.  Use this register
            to store doubleword values.
  
!      'c'
            A register suitable for use in an indirect jump.  This will
!           always be '$25' for '-mabicalls'.
  
!      'v'
!           Register '$3'.  Do not use this constraint in new code; it is
            retained only for compatibility with glibc.
  
!      'y'
!           Equivalent to 'r'; retained for backwards compatibility.
  
!      'z'
            A floating-point condition code register.
  
!      'I'
            A signed 16-bit constant (for arithmetic instructions).
  
!      'J'
            Integer zero.
  
!      'K'
            An unsigned 16-bit constant (for logic instructions).
  
!      'L'
            A signed 32-bit constant in which the lower 16 bits are zero.
!           Such constants can be loaded using 'lui'.
  
!      'M'
!           A constant that cannot be loaded using 'lui', 'addiu' or
!           'ori'.
  
!      'N'
            A constant in the range -65535 to -1 (inclusive).
  
!      'O'
            A signed 15-bit constant.
  
!      'P'
            A constant in the range 1 to 65535 (inclusive).
  
!      'G'
            Floating-point zero.
  
!      'R'
            An address that can be used in a non-macro load or store.
  
!      'ZC'
            A memory operand whose address is formed by a base register
            and offset that is suitable for use in instructions with the
!           same addressing mode as 'll' and 'sc'.
  
!      'ZD'
!           An address suitable for a 'prefetch' instruction, or for any
!           other instruction with the same addressing mode as 'prefetch'.
  
! _Motorola 680x0--'config/m68k/constraints.md'_
!      'a'
            Address register
  
!      'd'
            Data register
  
!      'f'
            68881 floating-point register, if available
  
!      'I'
            Integer in the range 1 to 8
  
!      'J'
            16-bit signed number
  
!      'K'
            Signed number whose magnitude is greater than 0x80
  
!      'L'
            Integer in the range -8 to -1
  
!      'M'
            Signed number whose magnitude is greater than 0x100
  
!      'N'
            Range 24 to 31, rotatert:SI 8 to 1 expressed as rotate
  
!      'O'
            16 (for rotate using swap)
  
!      'P'
            Range 8 to 15, rotatert:HI 8 to 1 expressed as rotate
  
!      'R'
            Numbers that mov3q can handle
  
!      'G'
            Floating point constant that is not a 68881 constant
  
!      'S'
            Operands that satisfy 'm' when -mpcrel is in effect
  
!      'T'
            Operands that satisfy 's' when -mpcrel is not in effect
  
!      'Q'
            Address register indirect addressing mode
  
!      'U'
            Register offset addressing
  
!      'W'
            const_call_operand
  
!      'Cs'
            symbol_ref or const
  
!      'Ci'
            const_int
  
!      'C0'
            const_int 0
  
!      'Cj'
            Range of signed numbers that don't fit in 16 bits
  
!      'Cmvq'
            Integers valid for mvq
  
!      'Capsw'
            Integers valid for a moveq followed by a swap
  
!      'Cmvz'
            Integers valid for mvz
  
!      'Cmvs'
            Integers valid for mvs
  
!      'Ap'
            push_operand
  
!      'Ac'
            Non-register operands allowed in clr
  
! _Moxie--'config/moxie/constraints.md'_
!      'A'
            An absolute address
  
!      'B'
            An offset address
  
!      'W'
            A register indirect memory operand
  
!      'I'
            A constant in the range of 0 to 255.
  
!      'N'
            A constant in the range of 0 to -255.
  
+ _MSP430-'config/msp430/constraints.md'_
  
!      'R12'
            Register R12.
  
!      'R13'
            Register R13.
  
!      'K'
            Integer constant 1.
  
!      'L'
            Integer constant -1^20..1^19.
  
!      'M'
            Integer constant 1-4.
  
!      'Ya'
            Memory references which do not require an extended MOVX
            instruction.
  
!      'Yl'
            Memory reference, labels only.
  
!      'Ys'
            Memory reference, stack only.
  
! _NDS32--'config/nds32/constraints.md'_
!      'w'
            LOW register class $r0 to $r7 constraint for V3/V3M ISA.
!      'l'
            LOW register class $r0 to $r7.
!      'd'
            MIDDLE register class $r0 to $r11, $r16 to $r19.
!      'h'
            HIGH register class $r12 to $r14, $r20 to $r31.
!      't'
            Temporary assist register $ta (i.e. $r15).
!      'k'
            Stack register $sp.
!      'Iu03'
            Unsigned immediate 3-bit value.
!      'In03'
            Negative immediate 3-bit value in the range of -7-0.
!      'Iu04'
            Unsigned immediate 4-bit value.
!      'Is05'
            Signed immediate 5-bit value.
!      'Iu05'
            Unsigned immediate 5-bit value.
!      'In05'
            Negative immediate 5-bit value in the range of -31-0.
!      'Ip05'
            Unsigned immediate 5-bit value for movpi45 instruction with
            range 16-47.
!      'Iu06'
            Unsigned immediate 6-bit value constraint for addri36.sp
            instruction.
!      'Iu08'
            Unsigned immediate 8-bit value.
!      'Iu09'
            Unsigned immediate 9-bit value.
!      'Is10'
            Signed immediate 10-bit value.
!      'Is11'
            Signed immediate 11-bit value.
!      'Is15'
            Signed immediate 15-bit value.
!      'Iu15'
            Unsigned immediate 15-bit value.
!      'Ic15'
!           A constant which is not in the range of imm15u but ok for bclr
!           instruction.
!      'Ie15'
!           A constant which is not in the range of imm15u but ok for bset
!           instruction.
!      'It15'
!           A constant which is not in the range of imm15u but ok for btgl
!           instruction.
!      'Ii15'
            A constant whose compliment value is in the range of imm15u
            and ok for bitci instruction.
!      'Is16'
            Signed immediate 16-bit value.
!      'Is17'
            Signed immediate 17-bit value.
!      'Is19'
            Signed immediate 19-bit value.
!      'Is20'
            Signed immediate 20-bit value.
!      'Ihig'
            The immediate value that can be simply set high 20-bit.
!      'Izeb'
            The immediate value 0xff.
!      'Izeh'
            The immediate value 0xffff.
!      'Ixls'
            The immediate value 0x01.
!      'Ix11'
            The immediate value 0x7ff.
!      'Ibms'
            The immediate value with power of 2.
!      'Ifex'
            The immediate value with power of 2 minus 1.
!      'U33'
            Memory constraint for 333 format.
!      'U45'
            Memory constraint for 45 format.
!      'U37'
            Memory constraint for 37 format.
  
! _Nios II family--'config/nios2/constraints.md'_
  
!      'I'
            Integer that is valid as an immediate operand in an
!           instruction taking a signed 16-bit number.  Range -32768 to
            32767.
  
!      'J'
            Integer that is valid as an immediate operand in an
!           instruction taking an unsigned 16-bit number.  Range 0 to
            65535.
  
!      'K'
            Integer that is valid as an immediate operand in an
            instruction taking only the upper 16-bits of a 32-bit number.
            Range 32-bit numbers with the lower 16-bits being 0.
  
!      'L'
            Integer that is valid as an immediate operand for a shift
!           instruction.  Range 0 to 31.
  
!      'M'
            Integer that is valid as an immediate operand for only the
!           value 0.  Can be used in conjunction with the format modifier
!           'z' to use 'r0' instead of '0' in the assembly output.
  
!      'N'
            Integer that is valid as an immediate operand for a custom
!           instruction opcode.  Range 0 to 255.
  
!      'P'
            An immediate operand for R2 andchi/andci instructions.
  
!      'S'
            Matches immediates which are addresses in the small data
!           section and therefore can be added to 'gp' as a 16-bit
            immediate to re-create their 32-bit value.
  
!      'U'
            Matches constants suitable as an operand for the rdprs and
            cache instructions.
  
!      'v'
            A memory operand suitable for Nios II R2 load/store exclusive
            instructions.
  
!      'w'
            A memory operand suitable for load/store IO and cache
            instructions.
  
!      'T'
!           A 'const' wrapped 'UNSPEC' expression, representing a
            supported PIC or TLS relocation.
  
+ _PDP-11--'config/pdp11/constraints.md'_
+      'a'
+           Floating point registers AC0 through AC3.  These can be loaded
+           from/to memory with a single instruction.
  
!      'd'
            Odd numbered general registers (R1, R3, R5).  These are used
            for 16-bit multiply operations.
  
!      'f'
            Any of the floating point registers (AC0 through AC5).
  
!      'G'
            Floating point constant 0.
  
!      'I'
            An integer constant that fits in 16 bits.
  
!      'J'
            An integer constant whose low order 16 bits are zero.
  
!      'K'
            An integer constant that does not meet the constraints for
!           codes 'I' or 'J'.
  
!      'L'
            The integer constant 1.
  
!      'M'
            The integer constant -1.
  
!      'N'
            The integer constant 0.
  
!      'O'
            Integer constants -4 through -1 and 1 through 4; shifts by
!           these amounts are handled as multiple single-bit shifts rather
!           than a single variable-length shift.
  
!      'Q'
            A memory reference which requires an additional word (address
            or offset) after the opcode.
  
!      'R'
            A memory reference that is encoded within the opcode.
  
! _PowerPC and IBM RS6000--'config/rs6000/constraints.md'_
!      'b'
            Address base register
  
!      'd'
            Floating point register (containing 64-bit value)
  
!      'f'
            Floating point register (containing 32-bit value)
  
!      'v'
            Altivec vector register
  
!      'wa'
            Any VSX register if the -mvsx option was used or NO_REGS.
  
!           When using any of the register constraints ('wa', 'wd', 'wf',
!           'wg', 'wh', 'wi', 'wj', 'wk', 'wl', 'wm', 'wo', 'wp', 'wq',
!           'ws', 'wt', 'wu', 'wv', 'ww', or 'wy') that take VSX
!           registers, you must use '%x<n>' in the template so that the
            correct register is used.  Otherwise the register number
            output in the assembly file will be incorrect if an Altivec
            register is an operand of a VSX instruction that expects VSX
*************** _PowerPC and IBM RS6000--`config/rs6000/
*** 21562,21761 ****
            is not correct.
  
            If an instruction only takes Altivec registers, you do not
!           want to use `%x<n>'.
  
                 asm ("xsaddqp %0,%1,%2" : "=v" (v1) : "v" (v2), "v" (v3));
  
!           is correct because the `xsaddqp' instruction only takes
            Altivec registers, while:
  
                 asm ("xsaddqp %x0,%x1,%x2" : "=v" (v1) : "v" (v2), "v" (v3));
  
            is incorrect.
  
!     `wb'
!           Altivec register if `-mcpu=power9' is used or NO_REGS.
  
!     `wd'
            VSX vector register to hold vector double data or NO_REGS.
  
!     `we'
!           VSX register if the `-mcpu=power9' and `-m64' options were
            used or NO_REGS.
  
!     `wf'
            VSX vector register to hold vector float data or NO_REGS.
  
!     `wg'
!           If `-mmfpgpr' was used, a floating point register or NO_REGS.
  
!     `wh'
            Floating point register if direct moves are available, or
            NO_REGS.
  
!     `wi'
            FP or VSX register to hold 64-bit integers for VSX insns or
            NO_REGS.
  
!     `wj'
!           FP or VSX register to hold 64-bit integers for direct moves
!           or NO_REGS.
  
!     `wk'
            FP or VSX register to hold 64-bit doubles for direct moves or
            NO_REGS.
  
!     `wl'
            Floating point register if the LFIWAX instruction is enabled
            or NO_REGS.
  
!     `wm'
            VSX register if direct move instructions are enabled, or
            NO_REGS.
  
!     `wn'
            No register (NO_REGS).
  
!     `wo'
            VSX register to use for ISA 3.0 vector instructions, or
            NO_REGS.
  
!     `wp'
!           VSX register to use for IEEE 128-bit floating point TFmode,
!           or NO_REGS.
  
!     `wq'
            VSX register to use for IEEE 128-bit floating point, or
            NO_REGS.
  
!     `wr'
!           General purpose register if 64-bit instructions are enabled
!           or NO_REGS.
  
!     `ws'
            VSX vector register to hold scalar double values or NO_REGS.
  
!     `wt'
            VSX vector register to hold 128 bit integer or NO_REGS.
  
!     `wu'
!           Altivec register to use for float/32-bit int loads/stores  or
            NO_REGS.
  
!     `wv'
!           Altivec register to use for double loads/stores  or NO_REGS.
  
!     `ww'
!           FP or VSX register to perform float operations under `-mvsx'
            or NO_REGS.
  
!     `wx'
            Floating point register if the STFIWX instruction is enabled
            or NO_REGS.
  
!     `wy'
            FP or VSX register to perform ISA 2.07 float ops or NO_REGS.
  
!     `wz'
            Floating point register if the LFIWZX instruction is enabled
            or NO_REGS.
  
!     `wA'
            Address base register if 64-bit instructions are enabled or
            NO_REGS.
  
!     `wD'
            Int constant that is the element number of the 64-bit scalar
            in a vector.
  
!     `wE'
            Vector constant that can be loaded with the XXSPLTIB
            instruction.
  
!     `wF'
            Memory operand suitable for power9 fusion load/stores.
  
!     `wG'
            Memory operand suitable for TOC fusion memory references.
  
!     `wL'
            Int constant that is the element number that the MFVSRLD
            instruction.  targets.
  
!     `wM'
            Match vector constant with all 1's if the XXLORC instruction
            is available.
  
!     `wO'
            A memory operand suitable for the ISA 3.0 vector d-form
            instructions.
  
!     `wQ'
!           A memory address that will work with the `lq' and `stq'
            instructions.
  
!     `wS'
            Vector constant that can be loaded with XXSPLTIB & sign
            extension.
  
!     `h'
!           `MQ', `CTR', or `LINK' register
  
!     `c'
!           `CTR' register
  
!     `l'
!           `LINK' register
  
!     `x'
!           `CR' register (condition register) number 0
  
!     `y'
!           `CR' register (condition register)
  
!     `z'
!           `XER[CA]' carry bit (part of the XER register)
  
!     `I'
            Signed 16-bit constant
  
!     `J'
!           Unsigned 16-bit constant shifted left 16 bits (use `L'
!           instead for `SImode' constants)
  
!     `K'
            Unsigned 16-bit constant
  
!     `L'
            Signed 16-bit constant shifted left 16 bits
  
!     `M'
            Constant larger than 31
  
!     `N'
            Exact power of 2
  
!     `O'
            Zero
  
!     `P'
            Constant whose negation is a signed 16-bit constant
  
!     `G'
            Floating point constant that can be loaded into a register
            with one instruction per word
  
!     `H'
            Integer/Floating point constant that can be loaded into a
            register using three instructions
  
!     `m'
!           Memory operand.  Normally, `m' does not allow addresses that
!           update the base register.  If `<' or `>' constraint is also
            used, they are allowed and therefore on PowerPC targets in
!           that case it is only safe to use `m<>' in an `asm' statement
!           if that `asm' statement accesses the operand exactly once.
!           The `asm' statement must also use `%U<OPNO>' as a placeholder
            for the "update" flag in the corresponding load or store
            instruction.  For example:
  
--- 21270,21469 ----
            is not correct.
  
            If an instruction only takes Altivec registers, you do not
!           want to use '%x<n>'.
  
                 asm ("xsaddqp %0,%1,%2" : "=v" (v1) : "v" (v2), "v" (v3));
  
!           is correct because the 'xsaddqp' instruction only takes
            Altivec registers, while:
  
                 asm ("xsaddqp %x0,%x1,%x2" : "=v" (v1) : "v" (v2), "v" (v3));
  
            is incorrect.
  
!      'wb'
!           Altivec register if '-mcpu=power9' is used or NO_REGS.
  
!      'wd'
            VSX vector register to hold vector double data or NO_REGS.
  
!      'we'
!           VSX register if the '-mcpu=power9' and '-m64' options were
            used or NO_REGS.
  
!      'wf'
            VSX vector register to hold vector float data or NO_REGS.
  
!      'wg'
!           If '-mmfpgpr' was used, a floating point register or NO_REGS.
  
!      'wh'
            Floating point register if direct moves are available, or
            NO_REGS.
  
!      'wi'
            FP or VSX register to hold 64-bit integers for VSX insns or
            NO_REGS.
  
!      'wj'
!           FP or VSX register to hold 64-bit integers for direct moves or
!           NO_REGS.
  
!      'wk'
            FP or VSX register to hold 64-bit doubles for direct moves or
            NO_REGS.
  
!      'wl'
            Floating point register if the LFIWAX instruction is enabled
            or NO_REGS.
  
!      'wm'
            VSX register if direct move instructions are enabled, or
            NO_REGS.
  
!      'wn'
            No register (NO_REGS).
  
!      'wo'
            VSX register to use for ISA 3.0 vector instructions, or
            NO_REGS.
  
!      'wp'
!           VSX register to use for IEEE 128-bit floating point TFmode, or
!           NO_REGS.
  
!      'wq'
            VSX register to use for IEEE 128-bit floating point, or
            NO_REGS.
  
!      'wr'
!           General purpose register if 64-bit instructions are enabled or
!           NO_REGS.
  
!      'ws'
            VSX vector register to hold scalar double values or NO_REGS.
  
!      'wt'
            VSX vector register to hold 128 bit integer or NO_REGS.
  
!      'wu'
!           Altivec register to use for float/32-bit int loads/stores or
            NO_REGS.
  
!      'wv'
!           Altivec register to use for double loads/stores or NO_REGS.
  
!      'ww'
!           FP or VSX register to perform float operations under '-mvsx'
            or NO_REGS.
  
!      'wx'
            Floating point register if the STFIWX instruction is enabled
            or NO_REGS.
  
!      'wy'
            FP or VSX register to perform ISA 2.07 float ops or NO_REGS.
  
!      'wz'
            Floating point register if the LFIWZX instruction is enabled
            or NO_REGS.
  
!      'wA'
            Address base register if 64-bit instructions are enabled or
            NO_REGS.
  
!      'wD'
            Int constant that is the element number of the 64-bit scalar
            in a vector.
  
!      'wE'
            Vector constant that can be loaded with the XXSPLTIB
            instruction.
  
!      'wF'
            Memory operand suitable for power9 fusion load/stores.
  
!      'wG'
            Memory operand suitable for TOC fusion memory references.
  
!      'wL'
            Int constant that is the element number that the MFVSRLD
            instruction.  targets.
  
!      'wM'
            Match vector constant with all 1's if the XXLORC instruction
            is available.
  
!      'wO'
            A memory operand suitable for the ISA 3.0 vector d-form
            instructions.
  
!      'wQ'
!           A memory address that will work with the 'lq' and 'stq'
            instructions.
  
!      'wS'
            Vector constant that can be loaded with XXSPLTIB & sign
            extension.
  
!      'h'
!           'MQ', 'CTR', or 'LINK' register
  
!      'c'
!           'CTR' register
  
!      'l'
!           'LINK' register
  
!      'x'
!           'CR' register (condition register) number 0
  
!      'y'
!           'CR' register (condition register)
  
!      'z'
!           'XER[CA]' carry bit (part of the XER register)
  
!      'I'
            Signed 16-bit constant
  
!      'J'
!           Unsigned 16-bit constant shifted left 16 bits (use 'L' instead
!           for 'SImode' constants)
  
!      'K'
            Unsigned 16-bit constant
  
!      'L'
            Signed 16-bit constant shifted left 16 bits
  
!      'M'
            Constant larger than 31
  
!      'N'
            Exact power of 2
  
!      'O'
            Zero
  
!      'P'
            Constant whose negation is a signed 16-bit constant
  
!      'G'
            Floating point constant that can be loaded into a register
            with one instruction per word
  
!      'H'
            Integer/Floating point constant that can be loaded into a
            register using three instructions
  
!      'm'
!           Memory operand.  Normally, 'm' does not allow addresses that
!           update the base register.  If '<' or '>' constraint is also
            used, they are allowed and therefore on PowerPC targets in
!           that case it is only safe to use 'm<>' in an 'asm' statement
!           if that 'asm' statement accesses the operand exactly once.
!           The 'asm' statement must also use '%U<OPNO>' as a placeholder
            for the "update" flag in the corresponding load or store
            instruction.  For example:
  
*************** _PowerPC and IBM RS6000--`config/rs6000/
*** 21767,22545 ****
  
            is not.
  
!     `es'
!           A "stable" memory operand; that is, one which does not
!           include any automodification of the base register.  This used
!           to be useful when `m' allowed automodification of the base
!           register, but as those are now only allowed when `<' or `>'
!           is used, `es' is basically the same as `m' without `<' and
!           `>'.
  
!     `Q'
            Memory operand that is an offset from a register (it is
!           usually better to use `m' or `es' in `asm' statements)
  
!     `Z'
            Memory operand that is an indexed or indirect from a register
!           (it is usually better to use `m' or `es' in `asm' statements)
  
!     `R'
            AIX TOC entry
  
!     `a'
!           Address operand that is an indexed or indirect from a
!           register (`p' is preferable for `asm' statements)
  
!     `U'
            System V Release 4 small data area reference
  
!     `W'
            Vector constant that does not require memory
  
!     `j'
            Vector constant that is all zeros.
  
  
! _RL78--`config/rl78/constraints.md'_
! 
!     `Int3'
            An integer constant in the range 1 ... 7.
! 
!     `Int8'
            An integer constant in the range 0 ... 255.
! 
!     `J'
            An integer constant in the range -255 ... 0
! 
!     `K'
            The integer constant 1.
! 
!     `L'
            The integer constant -1.
! 
!     `M'
            The integer constant 0.
! 
!     `N'
            The integer constant 2.
! 
!     `O'
            The integer constant -2.
! 
!     `P'
            An integer constant in the range 1 ... 15.
! 
!     `Qbi'
            The built-in compare types-eq, ne, gtu, ltu, geu, and leu.
! 
!     `Qsc'
            The synthetic compare types-gt, lt, ge, and le.
! 
!     `Wab'
            A memory reference with an absolute address.
! 
!     `Wbc'
!           A memory reference using `BC' as a base register, with an
            optional offset.
! 
!     `Wca'
!           A memory reference using `AX', `BC', `DE', or `HL' for the
            address, for calls.
! 
!     `Wcv'
            A memory reference using any 16-bit register pair for the
            address, for calls.
! 
!     `Wd2'
!           A memory reference using `DE' as a base register, with an
            optional offset.
! 
!     `Wde'
!           A memory reference using `DE' as a base register, without any
            offset.
! 
!     `Wfr'
            Any memory reference to an address in the far address space.
! 
!     `Wh1'
!           A memory reference using `HL' as a base register, with an
            optional one-byte offset.
! 
!     `Whb'
!           A memory reference using `HL' as a base register, with `B' or
!           `C' as the index register.
! 
!     `Whl'
!           A memory reference using `HL' as a base register, without any
            offset.
! 
!     `Ws1'
!           A memory reference using `SP' as a base register, with an
            optional one-byte offset.
! 
!     `Y'
            Any memory reference to an address in the near address space.
! 
!     `A'
!           The `AX' register.
! 
!     `B'
!           The `BC' register.
! 
!     `D'
!           The `DE' register.
! 
!     `R'
!           `A' through `L' registers.
! 
!     `S'
!           The `SP' register.
! 
!     `T'
!           The `HL' register.
! 
!     `Z08W'
!           The 16-bit `R8' register.
! 
!     `Z10W'
!           The 16-bit `R10' register.
! 
!     `Zint'
!           The registers reserved for interrupts (`R24' to `R31').
! 
!     `a'
!           The `A' register.
! 
!     `b'
!           The `B' register.
! 
!     `c'
!           The `C' register.
! 
!     `d'
!           The `D' register.
! 
!     `e'
!           The `E' register.
! 
!     `h'
!           The `H' register.
! 
!     `l'
!           The `L' register.
! 
!     `v'
            The virtual registers.
  
!     `w'
!           The `PSW' register.
! 
!     `x'
!           The `X' register.
! 
! 
! _RX--`config/rx/constraints.md'_
! 
!     `Q'
!           An address which does not involve register indirect
!           addressing or pre/post increment/decrement addressing.
  
!     `Symbol'
            A symbol reference.
  
!     `Int08'
            A constant in the range -256 to 255, inclusive.
  
!     `Sint08'
            A constant in the range -128 to 127, inclusive.
  
!     `Sint16'
            A constant in the range -32768 to 32767, inclusive.
  
!     `Sint24'
            A constant in the range -8388608 to 8388607, inclusive.
  
!     `Uint04'
            A constant in the range 0 to 15, inclusive.
  
! 
! _S/390 and zSeries--`config/s390/s390.h'_
! 
!     `a'
            Address register (general purpose register except r0)
  
!     `c'
            Condition code register
  
!     `d'
            Data register (arbitrary general purpose register)
  
!     `f'
            Floating-point register
  
!     `I'
            Unsigned 8-bit constant (0-255)
  
!     `J'
            Unsigned 12-bit constant (0-4095)
  
!     `K'
            Signed 16-bit constant (-32768-32767)
  
!     `L'
            Value appropriate as displacement.
!          `(0..4095)'
                 for short displacement
! 
!          `(-524288..524287)'
                 for long displacement
  
!     `M'
            Constant integer with a value of 0x7fffffff.
  
!     `N'
            Multiple letter constraint followed by 4 parameter letters.
!          `0..9:'
                 number of the part counting from most to least
                 significant
! 
!          `H,Q:'
                 mode of the part
! 
!          `D,S,H:'
                 mode of the containing operand
! 
!          `0,F:'
                 value of the other parts (F--all bits set)
!           The constraint matches if the specified part of a constant
!           has a value different from its other parts.
  
!     `Q'
            Memory reference without index register and with short
            displacement.
  
!     `R'
            Memory reference with index register and short displacement.
  
!     `S'
            Memory reference without index register but with long
            displacement.
  
!     `T'
            Memory reference with index register and long displacement.
  
!     `U'
            Pointer with short displacement.
  
!     `W'
            Pointer with long displacement.
  
!     `Y'
            Shift count operand.
  
  
! _SPARC--`config/sparc/sparc.h'_
! 
!     `f'
!           Floating-point register on the SPARC-V8 architecture and
!           lower floating-point register on the SPARC-V9 architecture.
! 
!     `e'
!           Floating-point register.  It is equivalent to `f' on the
            SPARC-V8 architecture and contains both lower and upper
            floating-point registers on the SPARC-V9 architecture.
  
!     `c'
            Floating-point condition code register.
  
!     `d'
            Lower floating-point register.  It is only valid on the
            SPARC-V9 architecture when the Visual Instruction Set is
            available.
  
!     `b'
            Floating-point register.  It is only valid on the SPARC-V9
            architecture when the Visual Instruction Set is available.
  
!     `h'
            64-bit global or out register for the SPARC-V8+ architecture.
  
!     `C'
            The constant all-ones, for floating-point.
  
!     `A'
            Signed 5-bit constant
  
!     `D'
            A vector constant
  
!     `I'
            Signed 13-bit constant
  
!     `J'
            Zero
  
!     `K'
            32-bit constant with the low 12 bits clear (a constant that
!           can be loaded with the `sethi' instruction)
  
!     `L'
!           A constant in the range supported by `movcc' instructions
            (11-bit signed immediate)
  
!     `M'
!           A constant in the range supported by `movrcc' instructions
            (10-bit signed immediate)
  
!     `N'
!           Same as `K', except that it verifies that bits that are not
!           in the lower 32-bit range are all zero.  Must be used instead
!           of `K' for modes wider than `SImode'
  
!     `O'
            The constant 4096
  
!     `G'
            Floating-point zero
  
!     `H'
            Signed 13-bit constant, sign-extended to 32 or 64 bits
  
!     `P'
            The constant -1
  
!     `Q'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single sethi
            instruction
  
!     `R'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single mov instruction
  
!     `S'
            Floating-point constant whose integral representation can be
!           moved into an integer register using a high/lo_sum
!           instruction sequence
  
!     `T'
            Memory address aligned to an 8-byte boundary
  
!     `U'
            Even register
  
!     `W'
!           Memory address for `e' constraint registers
  
!     `w'
            Memory address with only a base register
  
!     `Y'
            Vector zero
  
! 
! _SPU--`config/spu/spu.h'_
! 
!     `a'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 64 bit value.
  
!     `c'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 64 bit value.
  
!     `d'
!           An immediate for the `iohl' instruction.  const_int is
!           treated as a 64 bit value.
  
!     `f'
!           An immediate which can be loaded with `fsmbi'.
  
!     `A'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 32 bit value.
  
!     `B'
            An immediate for most arithmetic instructions.  const_int is
            treated as a 32 bit value.
  
!     `C'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 32 bit value.
  
!     `D'
!           An immediate for the `iohl' instruction.  const_int is
!           treated as a 32 bit value.
  
!     `I'
            A constant in the range [-64, 63] for shift/rotate
            instructions.
  
!     `J'
            An unsigned 7-bit constant for conversion/nop/channel
            instructions.
  
!     `K'
            A signed 10-bit constant for most arithmetic instructions.
  
!     `M'
!           A signed 16 bit immediate for `stop'.
  
!     `N'
!           An unsigned 16-bit constant for `iohl' and `fsmbi'.
  
!     `O'
            An unsigned 7-bit constant whose 3 least significant bits are
            0.
  
!     `P'
            An unsigned 3-bit constant for 16-byte rotates and shifts
  
!     `R'
            Call operand, reg, for indirect calls
  
!     `S'
            Call operand, symbol, for relative calls.
  
!     `T'
            Call operand, const_int, for absolute calls.
  
!     `U'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is sign extended to 128 bit.
  
!     `W'
            An immediate for shift and rotate instructions.  const_int is
            treated as a 32 bit value.
  
!     `Y'
            An immediate for and/xor/or instructions.  const_int is sign
            extended as a 128 bit.
  
!     `Z'
!           An immediate for the `iohl' instruction.  const_int is sign
            extended to 128 bit.
  
! 
! _TI C6X family--`config/c6x/constraints.md'_
! 
!     `a'
            Register file A (A0-A31).
  
!     `b'
            Register file B (B0-B31).
  
!     `A'
            Predicate registers in register file A (A0-A2 on C64X and
            higher, A1 and A2 otherwise).
  
!     `B'
            Predicate registers in register file B (B0-B2).
  
!     `C'
            A call-used register in register file B (B0-B9, B16-B31).
  
!     `Da'
            Register file A, excluding predicate registers (A3-A31, plus
            A0 if not C64X or higher).
  
!     `Db'
            Register file B, excluding predicate registers (B3-B31).
  
!     `Iu4'
            Integer constant in the range 0 ... 15.
  
!     `Iu5'
            Integer constant in the range 0 ... 31.
  
!     `In5'
            Integer constant in the range -31 ... 0.
  
!     `Is5'
            Integer constant in the range -16 ... 15.
  
!     `I5x'
            Integer constant that can be the operand of an ADDA or a SUBA
            insn.
  
!     `IuB'
            Integer constant in the range 0 ... 65535.
  
!     `IsB'
            Integer constant in the range -32768 ... 32767.
  
!     `IsC'
!           Integer constant in the range -2^20 ... 2^20 - 1.
  
!     `Jc'
            Integer constant that is a valid mask for the clr instruction.
  
!     `Js'
            Integer constant that is a valid mask for the set instruction.
  
!     `Q'
            Memory location with A base register.
  
!     `R'
            Memory location with B base register.
  
!     `S0'
            On C64x+ targets, a GP-relative small data reference.
  
!     `S1'
!           Any kind of `SYMBOL_REF', for use in a call address.
  
!     `Si'
            Any kind of immediate operand, unless it matches the S0
            constraint.
  
!     `T'
            Memory location with B base register, but not using a long
            offset.
  
!     `W'
            A memory operand with an address that can't be used in an
            unaligned access.
  
!     `Z'
            Register B14 (aka DP).
  
! 
! _TILE-Gx--`config/tilegx/constraints.md'_
! 
!     `R00'
!     `R01'
!     `R02'
!     `R03'
!     `R04'
!     `R05'
!     `R06'
!     `R07'
!     `R08'
!     `R09'
!     `R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!     `I'
            Signed 8-bit integer constant.
  
!     `J'
            Signed 16-bit integer constant.
  
!     `K'
            Unsigned 16-bit integer constant.
  
!     `L'
!           Integer constant that fits in one signed byte when
!           incremented by one (-129 ... 126).
  
!     `m'
!           Memory operand.  If used together with `<' or `>', the
!           operand can have postincrement which requires printing with
!           `%In' and `%in' on TILE-Gx.  For example:
  
                 asm ("st_add %I0,%1,%i0" : "=m<>" (*mem) : "r" (val));
  
!     `M'
            A bit mask suitable for the BFINS instruction.
  
!     `N'
            Integer constant that is a byte tiled out eight times.
  
!     `O'
            The integer zero constant.
  
!     `P'
            Integer constant that is a sign-extended byte tiled out as
            four shorts.
  
!     `Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!     `S'
            Integer constant that has all 1 bits consecutive and starting
            at bit 0.
  
!     `T'
            A 16-bit fragment of a got, tls, or pc-relative reference.
  
!     `U'
!           Memory operand except postincrement.  This is roughly the
!           same as `m' when not used together with `<' or `>'.
  
!     `W'
            An 8-element vector constant with identical elements.
  
!     `Y'
            A 4-element vector constant with identical elements.
  
!     `Z0'
            The integer constant 0xffffffff.
  
!     `Z1'
            The integer constant 0xffffffff00000000.
  
! 
! _TILEPro--`config/tilepro/constraints.md'_
! 
!     `R00'
!     `R01'
!     `R02'
!     `R03'
!     `R04'
!     `R05'
!     `R06'
!     `R07'
!     `R08'
!     `R09'
!     `R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!     `I'
            Signed 8-bit integer constant.
  
!     `J'
            Signed 16-bit integer constant.
  
!     `K'
            Nonzero integer constant with low 16 bits zero.
  
!     `L'
!           Integer constant that fits in one signed byte when
!           incremented by one (-129 ... 126).
  
!     `m'
!           Memory operand.  If used together with `<' or `>', the
!           operand can have postincrement which requires printing with
!           `%In' and `%in' on TILEPro.  For example:
  
                 asm ("swadd %I0,%1,%i0" : "=m<>" (mem) : "r" (val));
  
!     `M'
            A bit mask suitable for the MM instruction.
  
!     `N'
            Integer constant that is a byte tiled out four times.
  
!     `O'
            The integer zero constant.
  
!     `P'
!           Integer constant that is a sign-extended byte tiled out as
!           two shorts.
  
!     `Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!     `T'
            A symbolic operand, or a 16-bit fragment of a got, tls, or
            pc-relative reference.
  
!     `U'
!           Memory operand except postincrement.  This is roughly the
!           same as `m' when not used together with `<' or `>'.
  
!     `W'
            A 4-element vector constant with identical elements.
  
!     `Y'
            A 2-element vector constant with identical elements.
  
  
! _Visium--`config/visium/constraints.md'_
! 
!     `b'
!           EAM register `mdb'
! 
!     `c'
!           EAM register `mdc'
  
!     `f'
            Floating point register
  
!     `k'
            Register for sibcall optimization
  
!     `l'
!           General register, but not `r29', `r30' and `r31'
  
!     `t'
!           Register `r1'
  
!     `u'
!           Register `r2'
  
!     `v'
!           Register `r3'
  
!     `G'
            Floating-point constant 0.0
  
!     `J'
!           Integer constant in the range 0 .. 65535 (16-bit immediate)
  
!     `K'
!           Integer constant in the range 1 .. 31 (5-bit immediate)
  
!     `L'
!           Integer constant in the range -65535 .. -1 (16-bit negative
            immediate)
  
!     `M'
            Integer constant -1
  
!     `O'
            Integer constant 0
  
!     `P'
            Integer constant 32
  
! _x86 family--`config/i386/constraints.md'_
! 
!     `R'
            Legacy register--the eight integer registers available on all
!           i386 processors (`a', `b', `c', `d', `si', `di', `bp', `sp').
  
!     `q'
!           Any register accessible as `Rl'.  In 32-bit mode, `a', `b',
!           `c', and `d'; in 64-bit mode, any integer register.
  
!     `Q'
!           Any register accessible as `Rh': `a', `b', `c', and `d'.
  
!     `l'
            Any register that can be used as the index in a base+index
            memory access: that is, any general register except the stack
            pointer.
  
!     `a'
!           The `a' register.
  
!     `b'
!           The `b' register.
  
!     `c'
!           The `c' register.
  
!     `d'
!           The `d' register.
  
!     `S'
!           The `si' register.
  
!     `D'
!           The `di' register.
  
!     `A'
!           The `a' and `d' registers.  This class is used for
!           instructions that return double word results in the `ax:dx'
!           register pair.  Single word values will be allocated either
!           in `ax' or `dx'.  For example on i386 the following
!           implements `rdtsc':
  
                 unsigned long long rdtsc (void)
                 {
--- 21475,22189 ----
  
            is not.
  
!      'es'
!           A "stable" memory operand; that is, one which does not include
!           any automodification of the base register.  This used to be
!           useful when 'm' allowed automodification of the base register,
!           but as those are now only allowed when '<' or '>' is used,
!           'es' is basically the same as 'm' without '<' and '>'.
  
!      'Q'
            Memory operand that is an offset from a register (it is
!           usually better to use 'm' or 'es' in 'asm' statements)
  
!      'Z'
            Memory operand that is an indexed or indirect from a register
!           (it is usually better to use 'm' or 'es' in 'asm' statements)
  
!      'R'
            AIX TOC entry
  
!      'a'
!           Address operand that is an indexed or indirect from a register
!           ('p' is preferable for 'asm' statements)
  
!      'U'
            System V Release 4 small data area reference
  
!      'W'
            Vector constant that does not require memory
  
!      'j'
            Vector constant that is all zeros.
  
+ _RL78--'config/rl78/constraints.md'_
  
!      'Int3'
            An integer constant in the range 1 ... 7.
!      'Int8'
            An integer constant in the range 0 ... 255.
!      'J'
            An integer constant in the range -255 ... 0
!      'K'
            The integer constant 1.
!      'L'
            The integer constant -1.
!      'M'
            The integer constant 0.
!      'N'
            The integer constant 2.
!      'O'
            The integer constant -2.
!      'P'
            An integer constant in the range 1 ... 15.
!      'Qbi'
            The built-in compare types-eq, ne, gtu, ltu, geu, and leu.
!      'Qsc'
            The synthetic compare types-gt, lt, ge, and le.
!      'Wab'
            A memory reference with an absolute address.
!      'Wbc'
!           A memory reference using 'BC' as a base register, with an
            optional offset.
!      'Wca'
!           A memory reference using 'AX', 'BC', 'DE', or 'HL' for the
            address, for calls.
!      'Wcv'
            A memory reference using any 16-bit register pair for the
            address, for calls.
!      'Wd2'
!           A memory reference using 'DE' as a base register, with an
            optional offset.
!      'Wde'
!           A memory reference using 'DE' as a base register, without any
            offset.
!      'Wfr'
            Any memory reference to an address in the far address space.
!      'Wh1'
!           A memory reference using 'HL' as a base register, with an
            optional one-byte offset.
!      'Whb'
!           A memory reference using 'HL' as a base register, with 'B' or
!           'C' as the index register.
!      'Whl'
!           A memory reference using 'HL' as a base register, without any
            offset.
!      'Ws1'
!           A memory reference using 'SP' as a base register, with an
            optional one-byte offset.
!      'Y'
            Any memory reference to an address in the near address space.
!      'A'
!           The 'AX' register.
!      'B'
!           The 'BC' register.
!      'D'
!           The 'DE' register.
!      'R'
!           'A' through 'L' registers.
!      'S'
!           The 'SP' register.
!      'T'
!           The 'HL' register.
!      'Z08W'
!           The 16-bit 'R8' register.
!      'Z10W'
!           The 16-bit 'R10' register.
!      'Zint'
!           The registers reserved for interrupts ('R24' to 'R31').
!      'a'
!           The 'A' register.
!      'b'
!           The 'B' register.
!      'c'
!           The 'C' register.
!      'd'
!           The 'D' register.
!      'e'
!           The 'E' register.
!      'h'
!           The 'H' register.
!      'l'
!           The 'L' register.
!      'v'
            The virtual registers.
+      'w'
+           The 'PSW' register.
+      'x'
+           The 'X' register.
  
! _RX--'config/rx/constraints.md'_
!      'Q'
!           An address which does not involve register indirect addressing
!           or pre/post increment/decrement addressing.
  
!      'Symbol'
            A symbol reference.
  
!      'Int08'
            A constant in the range -256 to 255, inclusive.
  
!      'Sint08'
            A constant in the range -128 to 127, inclusive.
  
!      'Sint16'
            A constant in the range -32768 to 32767, inclusive.
  
!      'Sint24'
            A constant in the range -8388608 to 8388607, inclusive.
  
!      'Uint04'
            A constant in the range 0 to 15, inclusive.
  
! _S/390 and zSeries--'config/s390/s390.h'_
!      'a'
            Address register (general purpose register except r0)
  
!      'c'
            Condition code register
  
!      'd'
            Data register (arbitrary general purpose register)
  
!      'f'
            Floating-point register
  
!      'I'
            Unsigned 8-bit constant (0-255)
  
!      'J'
            Unsigned 12-bit constant (0-4095)
  
!      'K'
            Signed 16-bit constant (-32768-32767)
  
!      'L'
            Value appropriate as displacement.
!           '(0..4095)'
                 for short displacement
!           '(-524288..524287)'
                 for long displacement
  
!      'M'
            Constant integer with a value of 0x7fffffff.
  
!      'N'
            Multiple letter constraint followed by 4 parameter letters.
!           '0..9:'
                 number of the part counting from most to least
                 significant
!           'H,Q:'
                 mode of the part
!           'D,S,H:'
                 mode of the containing operand
!           '0,F:'
                 value of the other parts (F--all bits set)
!           The constraint matches if the specified part of a constant has
!           a value different from its other parts.
  
!      'Q'
            Memory reference without index register and with short
            displacement.
  
!      'R'
            Memory reference with index register and short displacement.
  
!      'S'
            Memory reference without index register but with long
            displacement.
  
!      'T'
            Memory reference with index register and long displacement.
  
!      'U'
            Pointer with short displacement.
  
!      'W'
            Pointer with long displacement.
  
!      'Y'
            Shift count operand.
  
+ _SPARC--'config/sparc/sparc.h'_
+      'f'
+           Floating-point register on the SPARC-V8 architecture and lower
+           floating-point register on the SPARC-V9 architecture.
  
!      'e'
!           Floating-point register.  It is equivalent to 'f' on the
            SPARC-V8 architecture and contains both lower and upper
            floating-point registers on the SPARC-V9 architecture.
  
!      'c'
            Floating-point condition code register.
  
!      'd'
            Lower floating-point register.  It is only valid on the
            SPARC-V9 architecture when the Visual Instruction Set is
            available.
  
!      'b'
            Floating-point register.  It is only valid on the SPARC-V9
            architecture when the Visual Instruction Set is available.
  
!      'h'
            64-bit global or out register for the SPARC-V8+ architecture.
  
!      'C'
            The constant all-ones, for floating-point.
  
!      'A'
            Signed 5-bit constant
  
!      'D'
            A vector constant
  
!      'I'
            Signed 13-bit constant
  
!      'J'
            Zero
  
!      'K'
            32-bit constant with the low 12 bits clear (a constant that
!           can be loaded with the 'sethi' instruction)
  
!      'L'
!           A constant in the range supported by 'movcc' instructions
            (11-bit signed immediate)
  
!      'M'
!           A constant in the range supported by 'movrcc' instructions
            (10-bit signed immediate)
  
!      'N'
!           Same as 'K', except that it verifies that bits that are not in
!           the lower 32-bit range are all zero.  Must be used instead of
!           'K' for modes wider than 'SImode'
  
!      'O'
            The constant 4096
  
!      'G'
            Floating-point zero
  
!      'H'
            Signed 13-bit constant, sign-extended to 32 or 64 bits
  
!      'P'
            The constant -1
  
!      'Q'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single sethi
            instruction
  
!      'R'
            Floating-point constant whose integral representation can be
            moved into an integer register using a single mov instruction
  
!      'S'
            Floating-point constant whose integral representation can be
!           moved into an integer register using a high/lo_sum instruction
!           sequence
  
!      'T'
            Memory address aligned to an 8-byte boundary
  
!      'U'
            Even register
  
!      'W'
!           Memory address for 'e' constraint registers
  
!      'w'
            Memory address with only a base register
  
!      'Y'
            Vector zero
  
! _SPU--'config/spu/spu.h'_
!      'a'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 64 bit value.
  
!      'c'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 64 bit value.
  
!      'd'
!           An immediate for the 'iohl' instruction.  const_int is treated
!           as a 64 bit value.
  
!      'f'
!           An immediate which can be loaded with 'fsmbi'.
  
!      'A'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is treated as a 32 bit value.
  
!      'B'
            An immediate for most arithmetic instructions.  const_int is
            treated as a 32 bit value.
  
!      'C'
            An immediate for and/xor/or instructions.  const_int is
            treated as a 32 bit value.
  
!      'D'
!           An immediate for the 'iohl' instruction.  const_int is treated
!           as a 32 bit value.
  
!      'I'
            A constant in the range [-64, 63] for shift/rotate
            instructions.
  
!      'J'
            An unsigned 7-bit constant for conversion/nop/channel
            instructions.
  
!      'K'
            A signed 10-bit constant for most arithmetic instructions.
  
!      'M'
!           A signed 16 bit immediate for 'stop'.
  
!      'N'
!           An unsigned 16-bit constant for 'iohl' and 'fsmbi'.
  
!      'O'
            An unsigned 7-bit constant whose 3 least significant bits are
            0.
  
!      'P'
            An unsigned 3-bit constant for 16-byte rotates and shifts
  
!      'R'
            Call operand, reg, for indirect calls
  
!      'S'
            Call operand, symbol, for relative calls.
  
!      'T'
            Call operand, const_int, for absolute calls.
  
!      'U'
            An immediate which can be loaded with the il/ila/ilh/ilhu
            instructions.  const_int is sign extended to 128 bit.
  
!      'W'
            An immediate for shift and rotate instructions.  const_int is
            treated as a 32 bit value.
  
!      'Y'
            An immediate for and/xor/or instructions.  const_int is sign
            extended as a 128 bit.
  
!      'Z'
!           An immediate for the 'iohl' instruction.  const_int is sign
            extended to 128 bit.
  
! _TI C6X family--'config/c6x/constraints.md'_
!      'a'
            Register file A (A0-A31).
  
!      'b'
            Register file B (B0-B31).
  
!      'A'
            Predicate registers in register file A (A0-A2 on C64X and
            higher, A1 and A2 otherwise).
  
!      'B'
            Predicate registers in register file B (B0-B2).
  
!      'C'
            A call-used register in register file B (B0-B9, B16-B31).
  
!      'Da'
            Register file A, excluding predicate registers (A3-A31, plus
            A0 if not C64X or higher).
  
!      'Db'
            Register file B, excluding predicate registers (B3-B31).
  
!      'Iu4'
            Integer constant in the range 0 ... 15.
  
!      'Iu5'
            Integer constant in the range 0 ... 31.
  
!      'In5'
            Integer constant in the range -31 ... 0.
  
!      'Is5'
            Integer constant in the range -16 ... 15.
  
!      'I5x'
            Integer constant that can be the operand of an ADDA or a SUBA
            insn.
  
!      'IuB'
            Integer constant in the range 0 ... 65535.
  
!      'IsB'
            Integer constant in the range -32768 ... 32767.
  
!      'IsC'
!           Integer constant in the range -2^{20} ... 2^{20} - 1.
  
!      'Jc'
            Integer constant that is a valid mask for the clr instruction.
  
!      'Js'
            Integer constant that is a valid mask for the set instruction.
  
!      'Q'
            Memory location with A base register.
  
!      'R'
            Memory location with B base register.
  
!      'S0'
            On C64x+ targets, a GP-relative small data reference.
  
!      'S1'
!           Any kind of 'SYMBOL_REF', for use in a call address.
  
!      'Si'
            Any kind of immediate operand, unless it matches the S0
            constraint.
  
!      'T'
            Memory location with B base register, but not using a long
            offset.
  
!      'W'
            A memory operand with an address that can't be used in an
            unaligned access.
  
!      'Z'
            Register B14 (aka DP).
  
! _TILE-Gx--'config/tilegx/constraints.md'_
!      'R00'
!      'R01'
!      'R02'
!      'R03'
!      'R04'
!      'R05'
!      'R06'
!      'R07'
!      'R08'
!      'R09'
!      'R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!      'I'
            Signed 8-bit integer constant.
  
!      'J'
            Signed 16-bit integer constant.
  
!      'K'
            Unsigned 16-bit integer constant.
  
!      'L'
!           Integer constant that fits in one signed byte when incremented
!           by one (-129 ... 126).
  
!      'm'
!           Memory operand.  If used together with '<' or '>', the operand
!           can have postincrement which requires printing with '%In' and
!           '%in' on TILE-Gx.  For example:
  
                 asm ("st_add %I0,%1,%i0" : "=m<>" (*mem) : "r" (val));
  
!      'M'
            A bit mask suitable for the BFINS instruction.
  
!      'N'
            Integer constant that is a byte tiled out eight times.
  
!      'O'
            The integer zero constant.
  
!      'P'
            Integer constant that is a sign-extended byte tiled out as
            four shorts.
  
!      'Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!      'S'
            Integer constant that has all 1 bits consecutive and starting
            at bit 0.
  
!      'T'
            A 16-bit fragment of a got, tls, or pc-relative reference.
  
!      'U'
!           Memory operand except postincrement.  This is roughly the same
!           as 'm' when not used together with '<' or '>'.
  
!      'W'
            An 8-element vector constant with identical elements.
  
!      'Y'
            A 4-element vector constant with identical elements.
  
!      'Z0'
            The integer constant 0xffffffff.
  
!      'Z1'
            The integer constant 0xffffffff00000000.
  
! _TILEPro--'config/tilepro/constraints.md'_
!      'R00'
!      'R01'
!      'R02'
!      'R03'
!      'R04'
!      'R05'
!      'R06'
!      'R07'
!      'R08'
!      'R09'
!      'R10'
            Each of these represents a register constraint for an
            individual register, from r0 to r10.
  
!      'I'
            Signed 8-bit integer constant.
  
!      'J'
            Signed 16-bit integer constant.
  
!      'K'
            Nonzero integer constant with low 16 bits zero.
  
!      'L'
!           Integer constant that fits in one signed byte when incremented
!           by one (-129 ... 126).
  
!      'm'
!           Memory operand.  If used together with '<' or '>', the operand
!           can have postincrement which requires printing with '%In' and
!           '%in' on TILEPro.  For example:
  
                 asm ("swadd %I0,%1,%i0" : "=m<>" (mem) : "r" (val));
  
!      'M'
            A bit mask suitable for the MM instruction.
  
!      'N'
            Integer constant that is a byte tiled out four times.
  
!      'O'
            The integer zero constant.
  
!      'P'
!           Integer constant that is a sign-extended byte tiled out as two
!           shorts.
  
!      'Q'
            Integer constant that fits in one signed byte when incremented
            (-129 ... 126), but excluding -1.
  
!      'T'
            A symbolic operand, or a 16-bit fragment of a got, tls, or
            pc-relative reference.
  
!      'U'
!           Memory operand except postincrement.  This is roughly the same
!           as 'm' when not used together with '<' or '>'.
  
!      'W'
            A 4-element vector constant with identical elements.
  
!      'Y'
            A 2-element vector constant with identical elements.
  
+ _Visium--'config/visium/constraints.md'_
+      'b'
+           EAM register 'mdb'
  
!      'c'
!           EAM register 'mdc'
  
!      'f'
            Floating point register
  
!      'k'
            Register for sibcall optimization
  
!      'l'
!           General register, but not 'r29', 'r30' and 'r31'
  
!      't'
!           Register 'r1'
  
!      'u'
!           Register 'r2'
  
!      'v'
!           Register 'r3'
  
!      'G'
            Floating-point constant 0.0
  
!      'J'
!           Integer constant in the range 0 ..  65535 (16-bit immediate)
  
!      'K'
!           Integer constant in the range 1 ..  31 (5-bit immediate)
  
!      'L'
!           Integer constant in the range -65535 ..  -1 (16-bit negative
            immediate)
  
!      'M'
            Integer constant -1
  
!      'O'
            Integer constant 0
  
!      'P'
            Integer constant 32
  
! _x86 family--'config/i386/constraints.md'_
!      'R'
            Legacy register--the eight integer registers available on all
!           i386 processors ('a', 'b', 'c', 'd', 'si', 'di', 'bp', 'sp').
  
!      'q'
!           Any register accessible as 'Rl'.  In 32-bit mode, 'a', 'b',
!           'c', and 'd'; in 64-bit mode, any integer register.
  
!      'Q'
!           Any register accessible as 'Rh': 'a', 'b', 'c', and 'd'.
  
!      'l'
            Any register that can be used as the index in a base+index
            memory access: that is, any general register except the stack
            pointer.
  
!      'a'
!           The 'a' register.
  
!      'b'
!           The 'b' register.
  
!      'c'
!           The 'c' register.
  
!      'd'
!           The 'd' register.
  
!      'S'
!           The 'si' register.
  
!      'D'
!           The 'di' register.
  
!      'A'
!           The 'a' and 'd' registers.  This class is used for
!           instructions that return double word results in the 'ax:dx'
!           register pair.  Single word values will be allocated either in
!           'ax' or 'dx'.  For example on i386 the following implements
!           'rdtsc':
  
                 unsigned long long rdtsc (void)
                 {
*************** _x86 family--`config/i386/constraints.md
*** 22549,22555 ****
                 }
  
            This is not correct on x86-64 as it would allocate tick in
!           either `ax' or `dx'.  You have to use the following variant
            instead:
  
                 unsigned long long rdtsc (void)
--- 22193,22199 ----
                 }
  
            This is not correct on x86-64 as it would allocate tick in
!           either 'ax' or 'dx'.  You have to use the following variant
            instead:
  
                 unsigned long long rdtsc (void)
*************** _x86 family--`config/i386/constraints.md
*** 22559,22776 ****
                   return ((unsigned long long)tickh << 32)|tickl;
                 }
  
!     `f'
            Any 80387 floating-point (stack) register.
  
!     `t'
!           Top of 80387 floating-point stack (`%st(0)').
  
!     `u'
!           Second from top of 80387 floating-point stack (`%st(1)').
  
!     `y'
            Any MMX register.
  
!     `x'
            Any SSE register.
  
!     `Yz'
!           First SSE register (`%xmm0').
  
!     `Y2'
            Any SSE register, when SSE2 is enabled.
  
!     `Yi'
            Any SSE register, when SSE2 and inter-unit moves are enabled.
  
!     `Ym'
            Any MMX register, when inter-unit moves are enabled.
  
!     `I'
            Integer constant in the range 0 ... 31, for 32-bit shifts.
  
!     `J'
            Integer constant in the range 0 ... 63, for 64-bit shifts.
  
!     `K'
            Signed 8-bit integer constant.
  
!     `L'
!           `0xFF' or `0xFFFF', for andsi as a zero-extending move.
  
!     `M'
!           0, 1, 2, or 3 (shifts for the `lea' instruction).
  
!     `N'
!           Unsigned 8-bit integer constant (for `in' and `out'
            instructions).
  
!     `O'
            Integer constant in the range 0 ... 127, for 128-bit shifts.
  
!     `G'
            Standard 80387 floating point constant.
  
!     `C'
            SSE constant zero operand.
  
!     `e'
            32-bit signed integer constant, or a symbolic reference known
            to fit that range (for immediate operands in sign-extending
            x86-64 instructions).
  
!     `Z'
            32-bit unsigned integer constant, or a symbolic reference
            known to fit that range (for immediate operands in
            zero-extending x86-64 instructions).
  
! 
! _Xstormy16--`config/stormy16/stormy16.h'_
! 
!     `a'
            Register r0.
  
!     `b'
            Register r1.
  
!     `c'
            Register r2.
  
!     `d'
            Register r8.
  
!     `e'
            Registers r0 through r7.
  
!     `t'
            Registers r0 and r1.
  
!     `y'
            The carry register.
  
!     `z'
            Registers r8 and r9.
  
!     `I'
            A constant between 0 and 3 inclusive.
  
!     `J'
            A constant that has exactly one bit set.
  
!     `K'
            A constant that has exactly one bit clear.
  
!     `L'
            A constant between 0 and 255 inclusive.
  
!     `M'
            A constant between -255 and 0 inclusive.
  
!     `N'
            A constant between -3 and 0 inclusive.
  
!     `O'
            A constant between 1 and 4 inclusive.
  
!     `P'
            A constant between -4 and -1 inclusive.
  
!     `Q'
            A memory reference that is a stack push.
  
!     `R'
            A memory reference that is a stack pop.
  
!     `S'
            A memory reference that refers to a constant address of known
            value.
  
!     `T'
            The register indicated by Rx (not implemented yet).
  
!     `U'
            A constant that is not between 2 and 15 inclusive.
  
!     `Z'
            The constant 0.
  
! 
! _Xtensa--`config/xtensa/constraints.md'_
! 
!     `a'
            General-purpose 32-bit register
  
!     `b'
            One-bit boolean register
  
!     `A'
            MAC16 40-bit accumulator register
  
!     `I'
            Signed 12-bit integer constant, for use in MOVI instructions
  
!     `J'
            Signed 8-bit integer constant, for use in ADDI instructions
  
!     `K'
            Integer constant valid for BccI instructions
  
!     `L'
            Unsigned constant valid for BccUI instructions
  
- 
- 
  
  File: gccint.info,  Node: Disable Insn Alternatives,  Next: Define Constraints,  Prev: Machine Constraints,  Up: Constraints
  
! 16.8.6 Disable insn alternatives using the `enabled' attribute
  --------------------------------------------------------------
  
  There are three insn attributes that may be used to selectively disable
  instruction alternatives:
  
! `enabled'
       Says whether an alternative is available on the current subtarget.
  
! `preferred_for_size'
       Says whether an enabled alternative should be used in code that is
       optimized for size.
  
! `preferred_for_speed'
       Says whether an enabled alternative should be used in code that is
       optimized for speed.
  
!  All these attributes should use `(const_int 1)' to allow an alternative
! or `(const_int 0)' to disallow it.  The attributes must be a static
! property of the subtarget; they cannot for example depend on the
! current operands, on the current optimization level, on the location of
! the insn within the body of a loop, on whether register allocation has
! finished, or on the current compiler pass.
  
!  The `enabled' attribute is a correctness property.  It tells GCC to act
  as though the disabled alternatives were never defined in the first
  place.  This is useful when adding new instructions to an existing
  pattern in cases where the new instructions are only available for
! certain cpu architecture levels (typically mapped to the `-march='
  command-line option).
  
!  In contrast, the `preferred_for_size' and `preferred_for_speed'
  attributes are strong optimization hints rather than correctness
! properties.  `preferred_for_size' tells GCC which alternatives to
  consider when adding or modifying an instruction that GCC wants to
! optimize for size.  `preferred_for_speed' does the same thing for
! speed.  Note that things like code motion can lead to cases where code
! optimized for size uses alternatives that are not preferred for size,
! and similarly for speed.
  
!  Although `define_insn's can in principle specify the `enabled'
  attribute directly, it is often clearer to have subsiduary attributes
! for each architectural feature of interest.  The `define_insn's can
! then use these subsiduary attributes to say which alternatives require
! which features.  The example below does this for `cpu_facility'.
  
!  E.g. the following two patterns could easily be merged using the
! `enabled' attribute:
  
  
       (define_insn "*movdi_old"
--- 22203,22414 ----
                   return ((unsigned long long)tickh << 32)|tickl;
                 }
  
!      'f'
            Any 80387 floating-point (stack) register.
  
!      't'
!           Top of 80387 floating-point stack ('%st(0)').
  
!      'u'
!           Second from top of 80387 floating-point stack ('%st(1)').
  
!      'y'
            Any MMX register.
  
!      'x'
            Any SSE register.
  
!      'Yz'
!           First SSE register ('%xmm0').
  
!      'Y2'
            Any SSE register, when SSE2 is enabled.
  
!      'Yi'
            Any SSE register, when SSE2 and inter-unit moves are enabled.
  
!      'Ym'
            Any MMX register, when inter-unit moves are enabled.
  
!      'I'
            Integer constant in the range 0 ... 31, for 32-bit shifts.
  
!      'J'
            Integer constant in the range 0 ... 63, for 64-bit shifts.
  
!      'K'
            Signed 8-bit integer constant.
  
!      'L'
!           '0xFF' or '0xFFFF', for andsi as a zero-extending move.
  
!      'M'
!           0, 1, 2, or 3 (shifts for the 'lea' instruction).
  
!      'N'
!           Unsigned 8-bit integer constant (for 'in' and 'out'
            instructions).
  
!      'O'
            Integer constant in the range 0 ... 127, for 128-bit shifts.
  
!      'G'
            Standard 80387 floating point constant.
  
!      'C'
            SSE constant zero operand.
  
!      'e'
            32-bit signed integer constant, or a symbolic reference known
            to fit that range (for immediate operands in sign-extending
            x86-64 instructions).
  
!      'Z'
            32-bit unsigned integer constant, or a symbolic reference
            known to fit that range (for immediate operands in
            zero-extending x86-64 instructions).
  
! _Xstormy16--'config/stormy16/stormy16.h'_
!      'a'
            Register r0.
  
!      'b'
            Register r1.
  
!      'c'
            Register r2.
  
!      'd'
            Register r8.
  
!      'e'
            Registers r0 through r7.
  
!      't'
            Registers r0 and r1.
  
!      'y'
            The carry register.
  
!      'z'
            Registers r8 and r9.
  
!      'I'
            A constant between 0 and 3 inclusive.
  
!      'J'
            A constant that has exactly one bit set.
  
!      'K'
            A constant that has exactly one bit clear.
  
!      'L'
            A constant between 0 and 255 inclusive.
  
!      'M'
            A constant between -255 and 0 inclusive.
  
!      'N'
            A constant between -3 and 0 inclusive.
  
!      'O'
            A constant between 1 and 4 inclusive.
  
!      'P'
            A constant between -4 and -1 inclusive.
  
!      'Q'
            A memory reference that is a stack push.
  
!      'R'
            A memory reference that is a stack pop.
  
!      'S'
            A memory reference that refers to a constant address of known
            value.
  
!      'T'
            The register indicated by Rx (not implemented yet).
  
!      'U'
            A constant that is not between 2 and 15 inclusive.
  
!      'Z'
            The constant 0.
  
! _Xtensa--'config/xtensa/constraints.md'_
!      'a'
            General-purpose 32-bit register
  
!      'b'
            One-bit boolean register
  
!      'A'
            MAC16 40-bit accumulator register
  
!      'I'
            Signed 12-bit integer constant, for use in MOVI instructions
  
!      'J'
            Signed 8-bit integer constant, for use in ADDI instructions
  
!      'K'
            Integer constant valid for BccI instructions
  
!      'L'
            Unsigned constant valid for BccUI instructions
  
  
  File: gccint.info,  Node: Disable Insn Alternatives,  Next: Define Constraints,  Prev: Machine Constraints,  Up: Constraints
  
! 16.8.6 Disable insn alternatives using the 'enabled' attribute
  --------------------------------------------------------------
  
  There are three insn attributes that may be used to selectively disable
  instruction alternatives:
  
! 'enabled'
       Says whether an alternative is available on the current subtarget.
  
! 'preferred_for_size'
       Says whether an enabled alternative should be used in code that is
       optimized for size.
  
! 'preferred_for_speed'
       Says whether an enabled alternative should be used in code that is
       optimized for speed.
  
!  All these attributes should use '(const_int 1)' to allow an alternative
! or '(const_int 0)' to disallow it.  The attributes must be a static
! property of the subtarget; they cannot for example depend on the current
! operands, on the current optimization level, on the location of the insn
! within the body of a loop, on whether register allocation has finished,
! or on the current compiler pass.
  
!  The 'enabled' attribute is a correctness property.  It tells GCC to act
  as though the disabled alternatives were never defined in the first
  place.  This is useful when adding new instructions to an existing
  pattern in cases where the new instructions are only available for
! certain cpu architecture levels (typically mapped to the '-march='
  command-line option).
  
!  In contrast, the 'preferred_for_size' and 'preferred_for_speed'
  attributes are strong optimization hints rather than correctness
! properties.  'preferred_for_size' tells GCC which alternatives to
  consider when adding or modifying an instruction that GCC wants to
! optimize for size.  'preferred_for_speed' does the same thing for speed.
! Note that things like code motion can lead to cases where code optimized
! for size uses alternatives that are not preferred for size, and
! similarly for speed.
  
!  Although 'define_insn's can in principle specify the 'enabled'
  attribute directly, it is often clearer to have subsiduary attributes
! for each architectural feature of interest.  The 'define_insn's can then
! use these subsiduary attributes to say which alternatives require which
! features.  The example below does this for 'cpu_facility'.
  
!  E.g.  the following two patterns could easily be merged using the
! 'enabled' attribute:
  
  
       (define_insn "*movdi_old"
*************** which features.  The example below does
*** 22788,22793 ****
--- 22426,22432 ----
          ldgr %0,%1
          lgdr %0,%1")
  
+ 
   to:
  
  
*************** which features.  The example below does
*** 22801,22807 ****
          lgdr %0,%1"
         [(set_attr "cpu_facility" "*,new,new")])
  
!  with the `enabled' attribute defined like this:
  
  
       (define_attr "cpu_facility" "standard,new" (const_string "standard"))
--- 22440,22447 ----
          lgdr %0,%1"
         [(set_attr "cpu_facility" "*,new,new")])
  
! 
!  with the 'enabled' attribute defined like this:
  
  
       (define_attr "cpu_facility" "standard,new" (const_string "standard"))
*************** which features.  The example below does
*** 22813,22818 ****
--- 22453,22459 ----
                (const_int 1)]
               (const_int 0)))
  
+ 
  
  File: gccint.info,  Node: Define Constraints,  Next: C Constraint Interface,  Prev: Disable Insn Alternatives,  Up: Constraints
  
*************** File: gccint.info,  Node: Define Constra
*** 22820,22840 ****
  --------------------------------------------
  
  Machine-specific constraints fall into two categories: register and
! non-register constraints.  Within the latter category, constraints
! which allow subsets of all possible memory or address operands should
! be specially marked, to give `reload' more information.
  
   Machine-specific constraints can be given names of arbitrary length,
  but they must be entirely composed of letters, digits, underscores
! (`_'), and angle brackets (`< >').  Like C identifiers, they must begin
  with a letter or underscore.
  
   In order to avoid ambiguity in operand constraint strings, no
! constraint can have a name that begins with any other constraint's
! name.  For example, if `x' is defined as a constraint name, `xy' may
! not be, and vice versa.  As a consequence of this rule, no constraint
! may begin with one of the generic constraint letters: `E F V X g i m n
! o p r s'.
  
   Register constraints correspond directly to register classes.  *Note
  Register Classes::.  There is thus not much flexibility in their
--- 22461,22480 ----
  --------------------------------------------
  
  Machine-specific constraints fall into two categories: register and
! non-register constraints.  Within the latter category, constraints which
! allow subsets of all possible memory or address operands should be
! specially marked, to give 'reload' more information.
  
   Machine-specific constraints can be given names of arbitrary length,
  but they must be entirely composed of letters, digits, underscores
! ('_'), and angle brackets ('< >').  Like C identifiers, they must begin
  with a letter or underscore.
  
   In order to avoid ambiguity in operand constraint strings, no
! constraint can have a name that begins with any other constraint's name.
! For example, if 'x' is defined as a constraint name, 'xy' may not be,
! and vice versa.  As a consequence of this rule, no constraint may begin
! with one of the generic constraint letters: 'E F V X g i m n o p r s'.
  
   Register constraints correspond directly to register classes.  *Note
  Register Classes::.  There is thus not much flexibility in their
*************** definitions.
*** 22842,22857 ****
  
   -- MD Expression: define_register_constraint name regclass docstring
       All three arguments are string constants.  NAME is the name of the
!      constraint, as it will appear in `match_operand' expressions.  If
       NAME is a multi-letter constraint its length shall be the same for
       all constraints starting with the same letter.  REGCLASS can be
!      either the name of the corresponding register class (*note
!      Register Classes::), or a C expression which evaluates to the
!      appropriate register class.  If it is an expression, it must have
!      no side effects, and it cannot look at the operand.  The usual use
!      of expressions is to map some register constraints to `NO_REGS'
!      when the register class is not available on a given
!      subarchitecture.
  
       DOCSTRING is a sentence documenting the meaning of the constraint.
       Docstrings are explained further below.
--- 22482,22496 ----
  
   -- MD Expression: define_register_constraint name regclass docstring
       All three arguments are string constants.  NAME is the name of the
!      constraint, as it will appear in 'match_operand' expressions.  If
       NAME is a multi-letter constraint its length shall be the same for
       all constraints starting with the same letter.  REGCLASS can be
!      either the name of the corresponding register class (*note Register
!      Classes::), or a C expression which evaluates to the appropriate
!      register class.  If it is an expression, it must have no side
!      effects, and it cannot look at the operand.  The usual use of
!      expressions is to map some register constraints to 'NO_REGS' when
!      the register class is not available on a given subarchitecture.
  
       DOCSTRING is a sentence documenting the meaning of the constraint.
       Docstrings are explained further below.
*************** constraint matches.
*** 22862,22980 ****
  
   -- MD Expression: define_constraint name docstring exp
       The NAME and DOCSTRING arguments are the same as for
!      `define_register_constraint', but note that the docstring comes
       immediately after the name for these expressions.  EXP is an RTL
       expression, obeying the same rules as the RTL expressions in
       predicate definitions.  *Note Defining Predicates::, for details.
       If it evaluates true, the constraint matches; if it evaluates
!      false, it doesn't. Constraint expressions should indicate which
       RTL codes they might match, just like predicate expressions.
  
!      `match_test' C expressions have access to the following variables:
  
!     OP
            The RTL object defining the operand.
! 
!     MODE
            The machine mode of OP.
! 
!     IVAL
!           `INTVAL (OP)', if OP is a `const_int'.
! 
!     HVAL
!           `CONST_DOUBLE_HIGH (OP)', if OP is an integer `const_double'.
! 
!     LVAL
!           `CONST_DOUBLE_LOW (OP)', if OP is an integer `const_double'.
! 
!     RVAL
!           `CONST_DOUBLE_REAL_VALUE (OP)', if OP is a floating-point
!           `const_double'.
  
       The *VAL variables should only be used once another piece of the
       expression has verified that OP is the appropriate kind of RTL
       object.
  
   Most non-register constraints should be defined with
! `define_constraint'.  The remaining two definition expressions are only
! appropriate for constraints that should be handled specially by
! `reload' if they fail to match.
  
   -- MD Expression: define_memory_constraint name docstring exp
       Use this expression for constraints that match a subset of all
!      memory operands: that is, `reload' can make them match by
!      converting the operand to the form `(mem (reg X))', where X is a
       base register (from the register class specified by
!      `BASE_REG_CLASS', *note Register Classes::).
  
       For example, on the S/390, some instructions do not accept
!      arbitrary memory references, but only those that do not make use
!      of an index register.  The constraint letter `Q' is defined to
!      represent a memory address of this type.  If `Q' is defined with
!      `define_memory_constraint', a `Q' constraint can handle any memory
!      operand, because `reload' knows it can simply copy the memory
!      address into a base register if required.  This is analogous to
!      the way an `o' constraint can handle any memory operand.
  
       The syntax and semantics are otherwise identical to
!      `define_constraint'.
  
   -- MD Expression: define_special_memory_constraint name docstring exp
       Use this expression for constraints that match a subset of all
!      memory operands: that is, `reload' can not make them match by
       reloading the address as it is described for
!      `define_memory_constraint' or such address reload is undesirable
       with the performance point of view.
  
!      For example, `define_special_memory_constraint' can be useful if
       specifically aligned memory is necessary or desirable for some insn
       operand.
  
       The syntax and semantics are otherwise identical to
!      `define_constraint'.
  
   -- MD Expression: define_address_constraint name docstring exp
       Use this expression for constraints that match a subset of all
!      address operands: that is, `reload' can make the constraint match
!      by converting the operand to the form `(reg X)', again with X a
       base register.
  
!      Constraints defined with `define_address_constraint' can only be
!      used with the `address_operand' predicate, or machine-specific
       predicates that work the same way.  They are treated analogously to
!      the generic `p' constraint.
  
       The syntax and semantics are otherwise identical to
!      `define_constraint'.
  
!  For historical reasons, names beginning with the letters `G H' are
! reserved for constraints that match only `const_double's, and names
! beginning with the letters `I J K L M N O P' are reserved for
! constraints that match only `const_int's.  This may change in the
  future.  For the time being, constraints with these names must be
! written in a stylized form, so that `genpreds' can tell you did it
  correctly:
  
       (define_constraint "[GHIJKLMNOP]..."
         "DOC..."
!        (and (match_code "const_int")  ; `const_double' for G/H
!             CONDITION...))            ; usually a `match_test'
  
   It is fine to use names beginning with other letters for constraints
! that match `const_double's or `const_int's.
  
   Each docstring in a constraint definition should be one or more
  complete sentences, marked up in Texinfo format.  _They are currently
! unused._ In the future they will be copied into the GCC manual, in
  *note Machine Constraints::, replacing the hand-maintained tables
  currently found in that section.  Also, in the future the compiler may
! use this to give more helpful diagnostics when poor choice of `asm'
  constraints causes a reload failure.
  
!  If you put the pseudo-Texinfo directive `@internal' at the beginning
! of a docstring, then (in the future) it will appear only in the
! internals manual's version of the machine-specific constraint tables.
! Use this for constraints that should not appear in `asm' statements.
  
  
  File: gccint.info,  Node: C Constraint Interface,  Prev: Define Constraints,  Up: Constraints
--- 22501,22614 ----
  
   -- MD Expression: define_constraint name docstring exp
       The NAME and DOCSTRING arguments are the same as for
!      'define_register_constraint', but note that the docstring comes
       immediately after the name for these expressions.  EXP is an RTL
       expression, obeying the same rules as the RTL expressions in
       predicate definitions.  *Note Defining Predicates::, for details.
       If it evaluates true, the constraint matches; if it evaluates
!      false, it doesn't.  Constraint expressions should indicate which
       RTL codes they might match, just like predicate expressions.
  
!      'match_test' C expressions have access to the following variables:
  
!      OP
            The RTL object defining the operand.
!      MODE
            The machine mode of OP.
!      IVAL
!           'INTVAL (OP)', if OP is a 'const_int'.
!      HVAL
!           'CONST_DOUBLE_HIGH (OP)', if OP is an integer 'const_double'.
!      LVAL
!           'CONST_DOUBLE_LOW (OP)', if OP is an integer 'const_double'.
!      RVAL
!           'CONST_DOUBLE_REAL_VALUE (OP)', if OP is a floating-point
!           'const_double'.
  
       The *VAL variables should only be used once another piece of the
       expression has verified that OP is the appropriate kind of RTL
       object.
  
   Most non-register constraints should be defined with
! 'define_constraint'.  The remaining two definition expressions are only
! appropriate for constraints that should be handled specially by 'reload'
! if they fail to match.
  
   -- MD Expression: define_memory_constraint name docstring exp
       Use this expression for constraints that match a subset of all
!      memory operands: that is, 'reload' can make them match by
!      converting the operand to the form '(mem (reg X))', where X is a
       base register (from the register class specified by
!      'BASE_REG_CLASS', *note Register Classes::).
  
       For example, on the S/390, some instructions do not accept
!      arbitrary memory references, but only those that do not make use of
!      an index register.  The constraint letter 'Q' is defined to
!      represent a memory address of this type.  If 'Q' is defined with
!      'define_memory_constraint', a 'Q' constraint can handle any memory
!      operand, because 'reload' knows it can simply copy the memory
!      address into a base register if required.  This is analogous to the
!      way an 'o' constraint can handle any memory operand.
  
       The syntax and semantics are otherwise identical to
!      'define_constraint'.
  
   -- MD Expression: define_special_memory_constraint name docstring exp
       Use this expression for constraints that match a subset of all
!      memory operands: that is, 'reload' can not make them match by
       reloading the address as it is described for
!      'define_memory_constraint' or such address reload is undesirable
       with the performance point of view.
  
!      For example, 'define_special_memory_constraint' can be useful if
       specifically aligned memory is necessary or desirable for some insn
       operand.
  
       The syntax and semantics are otherwise identical to
!      'define_constraint'.
  
   -- MD Expression: define_address_constraint name docstring exp
       Use this expression for constraints that match a subset of all
!      address operands: that is, 'reload' can make the constraint match
!      by converting the operand to the form '(reg X)', again with X a
       base register.
  
!      Constraints defined with 'define_address_constraint' can only be
!      used with the 'address_operand' predicate, or machine-specific
       predicates that work the same way.  They are treated analogously to
!      the generic 'p' constraint.
  
       The syntax and semantics are otherwise identical to
!      'define_constraint'.
  
!  For historical reasons, names beginning with the letters 'G H' are
! reserved for constraints that match only 'const_double's, and names
! beginning with the letters 'I J K L M N O P' are reserved for
! constraints that match only 'const_int's.  This may change in the
  future.  For the time being, constraints with these names must be
! written in a stylized form, so that 'genpreds' can tell you did it
  correctly:
  
       (define_constraint "[GHIJKLMNOP]..."
         "DOC..."
!        (and (match_code "const_int")  ; 'const_double' for G/H
!             CONDITION...))            ; usually a 'match_test'
  
   It is fine to use names beginning with other letters for constraints
! that match 'const_double's or 'const_int's.
  
   Each docstring in a constraint definition should be one or more
  complete sentences, marked up in Texinfo format.  _They are currently
! unused._  In the future they will be copied into the GCC manual, in
  *note Machine Constraints::, replacing the hand-maintained tables
  currently found in that section.  Also, in the future the compiler may
! use this to give more helpful diagnostics when poor choice of 'asm'
  constraints causes a reload failure.
  
!  If you put the pseudo-Texinfo directive '@internal' at the beginning of
! a docstring, then (in the future) it will appear only in the internals
! manual's version of the machine-specific constraint tables.  Use this
! for constraints that should not appear in 'asm' statements.
  
  
  File: gccint.info,  Node: C Constraint Interface,  Prev: Define Constraints,  Up: Constraints
*************** File: gccint.info,  Node: C Constraint I
*** 22983,23042 ****
  ---------------------------------
  
  It is occasionally useful to test a constraint from C code rather than
! implicitly via the constraint string in a `match_operand'.  The
! generated file `tm_p.h' declares a few interfaces for working with
  constraints.  At present these are defined for all constraints except
! `g' (which is equivalent to `general_operand').
  
   Some valid constraint names are not valid C identifiers, so there is a
  mangling scheme for referring to them from C.  Constraint names that do
  not contain angle brackets or underscores are left unchanged.
! Underscores are doubled, each `<' is replaced with `_l', and each `>'
! with `_g'.  Here are some examples:
  
       *Original* *Mangled*
!      `x'        `x'
!      `P42x'     `P42x'
!      `P4_x'     `P4__x'
!      `P4>x'     `P4_gx'
!      `P4>>'     `P4_g_g'
!      `P4_g>'    `P4__g_g'
  
   Throughout this section, the variable C is either a constraint in the
! abstract sense, or a constant from `enum constraint_num'; the variable
! M is a mangled constraint name (usually as part of a larger identifier).
  
   -- Enum: constraint_num
!      For each constraint except `g', there is a corresponding
!      enumeration constant: `CONSTRAINT_' plus the mangled name of the
!      constraint.  Functions that take an `enum constraint_num' as an
       argument expect one of these constants.
  
   -- Function: inline bool satisfies_constraint_M (rtx EXP)
!      For each non-register constraint M except `g', there is one of
!      these functions; it returns `true' if EXP satisfies the
!      constraint.  These functions are only visible if `rtl.h' was
!      included before `tm_p.h'.
  
   -- Function: bool constraint_satisfied_p (rtx EXP, enum constraint_num
            C)
!      Like the `satisfies_constraint_M' functions, but the constraint to
       test is given as an argument, C.  If C specifies a register
!      constraint, this function will always return `false'.
  
   -- Function: enum reg_class reg_class_for_constraint (enum
            constraint_num C)
       Returns the register class associated with C.  If C is not a
       register constraint, or those registers are not available for the
!      currently selected subtarget, returns `NO_REGS'.
  
!  Here is an example use of `satisfies_constraint_M'.  In peephole
! optimizations (*note Peephole Definitions::), operand constraint
! strings are ignored, so if there are relevant constraints, they must be
! tested in the C condition.  In the example, the optimization is applied
! if operand 2 does _not_ satisfy the `K' constraint.  (This is a
! simplified version of a peephole definition from the i386 machine
! description.)
  
       (define_peephole2
         [(match_scratch:SI 3 "r")
--- 22617,22675 ----
  ---------------------------------
  
  It is occasionally useful to test a constraint from C code rather than
! implicitly via the constraint string in a 'match_operand'.  The
! generated file 'tm_p.h' declares a few interfaces for working with
  constraints.  At present these are defined for all constraints except
! 'g' (which is equivalent to 'general_operand').
  
   Some valid constraint names are not valid C identifiers, so there is a
  mangling scheme for referring to them from C.  Constraint names that do
  not contain angle brackets or underscores are left unchanged.
! Underscores are doubled, each '<' is replaced with '_l', and each '>'
! with '_g'.  Here are some examples:
  
       *Original* *Mangled*
!      x          x
!      P42x       P42x
!      P4_x       P4__x
!      P4>x       P4_gx
!      P4>>       P4_g_g
!      P4_g>      P4__g_g
  
   Throughout this section, the variable C is either a constraint in the
! abstract sense, or a constant from 'enum constraint_num'; the variable M
! is a mangled constraint name (usually as part of a larger identifier).
  
   -- Enum: constraint_num
!      For each constraint except 'g', there is a corresponding
!      enumeration constant: 'CONSTRAINT_' plus the mangled name of the
!      constraint.  Functions that take an 'enum constraint_num' as an
       argument expect one of these constants.
  
   -- Function: inline bool satisfies_constraint_M (rtx EXP)
!      For each non-register constraint M except 'g', there is one of
!      these functions; it returns 'true' if EXP satisfies the constraint.
!      These functions are only visible if 'rtl.h' was included before
!      'tm_p.h'.
  
   -- Function: bool constraint_satisfied_p (rtx EXP, enum constraint_num
            C)
!      Like the 'satisfies_constraint_M' functions, but the constraint to
       test is given as an argument, C.  If C specifies a register
!      constraint, this function will always return 'false'.
  
   -- Function: enum reg_class reg_class_for_constraint (enum
            constraint_num C)
       Returns the register class associated with C.  If C is not a
       register constraint, or those registers are not available for the
!      currently selected subtarget, returns 'NO_REGS'.
  
!  Here is an example use of 'satisfies_constraint_M'.  In peephole
! optimizations (*note Peephole Definitions::), operand constraint strings
! are ignored, so if there are relevant constraints, they must be tested
! in the C condition.  In the example, the optimization is applied if
! operand 2 does _not_ satisfy the 'K' constraint.  (This is a simplified
! version of a peephole definition from the i386 machine description.)
  
       (define_peephole2
         [(match_scratch:SI 3 "r")
*************** generation pass of the compiler.  Giving
*** 23062,23097 ****
  instruction pattern tells the RTL generation pass that it can use the
  pattern to accomplish a certain task.
  
! `movM'
       Here M stands for a two-letter machine mode name, in lowercase.
       This instruction pattern moves data with that machine mode from
!      operand 1 to operand 0.  For example, `movsi' moves full-word data.
  
!      If operand 0 is a `subreg' with mode M of a register whose own
!      mode is wider than M, the effect of this instruction is to store
!      the specified value in the part of the register that corresponds
!      to mode M.  Bits outside of M, but which are within the same
!      target word as the `subreg' are undefined.  Bits which are outside
!      the target word are left unchanged.
  
       This class of patterns is special in several ways.  First of all,
       each of these names up to and including full word size _must_ be
       defined, because there is no other way to copy a datum from one
       place to another.  If there are patterns accepting operands in
!      larger modes, `movM' must be defined for integer modes of those
       sizes.
  
       Second, these patterns are not used solely in the RTL generation
       pass.  Even the reload pass can generate move insns to copy values
!      from stack slots into temporary registers.  When it does so, one
!      of the operands is a hard register and the other is an operand
!      that can need to be reloaded into a register.
  
       Therefore, when given such a pair of operands, the pattern must
       generate RTL which needs no reloading and needs no temporary
       registers--no registers other than the operands.  For example, if
!      you support the pattern with a `define_expand', then in such a
!      case the `define_expand' mustn't call `force_reg' or any other such
       function which might generate new pseudo registers.
  
       This requirement exists even for subword modes on a RISC machine
--- 22695,22730 ----
  instruction pattern tells the RTL generation pass that it can use the
  pattern to accomplish a certain task.
  
! 'movM'
       Here M stands for a two-letter machine mode name, in lowercase.
       This instruction pattern moves data with that machine mode from
!      operand 1 to operand 0.  For example, 'movsi' moves full-word data.
  
!      If operand 0 is a 'subreg' with mode M of a register whose own mode
!      is wider than M, the effect of this instruction is to store the
!      specified value in the part of the register that corresponds to
!      mode M.  Bits outside of M, but which are within the same target
!      word as the 'subreg' are undefined.  Bits which are outside the
!      target word are left unchanged.
  
       This class of patterns is special in several ways.  First of all,
       each of these names up to and including full word size _must_ be
       defined, because there is no other way to copy a datum from one
       place to another.  If there are patterns accepting operands in
!      larger modes, 'movM' must be defined for integer modes of those
       sizes.
  
       Second, these patterns are not used solely in the RTL generation
       pass.  Even the reload pass can generate move insns to copy values
!      from stack slots into temporary registers.  When it does so, one of
!      the operands is a hard register and the other is an operand that
!      can need to be reloaded into a register.
  
       Therefore, when given such a pair of operands, the pattern must
       generate RTL which needs no reloading and needs no temporary
       registers--no registers other than the operands.  For example, if
!      you support the pattern with a 'define_expand', then in such a case
!      the 'define_expand' mustn't call 'force_reg' or any other such
       function which might generate new pseudo registers.
  
       This requirement exists even for subword modes on a RISC machine
*************** pattern to accomplish a certain task.
*** 23104,23114 ****
       be done with the address except to use it as it stands.  If it is
       copied, it will not be replaced with a valid address.  No attempt
       should be made to make such an address into a valid address and no
!      routine (such as `change_address') that will do so may be called.
!      Note that `general_operand' will fail when applied to such an
       address.
  
!      The global variable `reload_in_progress' (which must be explicitly
       declared if required) can be used to determine whether such special
       handling is required.
  
--- 22737,22747 ----
       be done with the address except to use it as it stands.  If it is
       copied, it will not be replaced with a valid address.  No attempt
       should be made to make such an address into a valid address and no
!      routine (such as 'change_address') that will do so may be called.
!      Note that 'general_operand' will fail when applied to such an
       address.
  
!      The global variable 'reload_in_progress' (which must be explicitly
       declared if required) can be used to determine whether such special
       handling is required.
  
*************** pattern to accomplish a certain task.
*** 23119,23194 ****
       reloads.
  
       If a scratch register is required to move an object to or from
!      memory, it can be allocated using `gen_reg_rtx' prior to life
       analysis.
  
       If there are cases which need scratch registers during or after
       reload, you must provide an appropriate secondary_reload target
       hook.
  
!      The macro `can_create_pseudo_p' can be used to determine if it is
       unsafe to create new pseudo registers.  If this variable is
!      nonzero, then it is unsafe to call `gen_reg_rtx' to allocate a new
       pseudo.
  
!      The constraints on a `movM' must permit moving any hard register
!      to any other hard register provided that `HARD_REGNO_MODE_OK'
!      permits mode M in both registers and `TARGET_REGISTER_MOVE_COST'
!      applied to their classes returns a value of 2.
  
!      It is obligatory to support floating point `movM' instructions
!      into and out of any registers that can hold fixed point values,
!      because unions and structures (which have modes `SImode' or
!      `DImode') can be in those registers and they may have floating
!      point members.
  
!      There may also be a need to support fixed point `movM'
!      instructions in and out of floating point registers.
!      Unfortunately, I have forgotten why this was so, and I don't know
!      whether it is still true.  If `HARD_REGNO_MODE_OK' rejects fixed
!      point values in floating point registers, then the constraints of
!      the fixed point `movM' instructions must be designed to avoid ever
!      trying to reload into a floating point register.
  
! `reload_inM'
! `reload_outM'
       These named patterns have been obsoleted by the target hook
!      `secondary_reload'.
  
!      Like `movM', but used when a scratch register is required to move
       between operand 0 and operand 1.  Operand 2 describes the scratch
!      register.  See the discussion of the `SECONDARY_RELOAD_CLASS'
!      macro in *note Register Classes::.
  
!      There are special restrictions on the form of the `match_operand's
       used in these patterns.  First, only the predicate for the reload
!      operand is examined, i.e., `reload_in' examines operand 1, but not
       the predicates for operand 0 or 2.  Second, there may be only one
       alternative in the constraints.  Third, only a single register
       class letter may be used for the constraint; subsequent constraint
       letters are ignored.  As a special exception, an empty constraint
!      string matches the `ALL_REGS' register class.  This may relieve
!      ports of the burden of defining an `ALL_REGS' constraint letter
       just for these patterns.
  
! `movstrictM'
!      Like `movM' except that if operand 0 is a `subreg' with mode M of
!      a register whose natural mode is wider, the `movstrictM'
!      instruction is guaranteed not to alter any of the register except
!      the part which belongs to mode M.
  
! `movmisalignM'
       This variant of a move pattern is designed to load or store a value
       from a memory address that is not naturally aligned for its mode.
       For a store, the memory will be in operand 0; for a load, the
       memory will be in operand 1.  The other operand is guaranteed not
!      to be a memory, so that it's easy to tell whether this is a load
!      or store.
  
       This pattern is used by the autovectorizer, and when expanding a
!      `MISALIGNED_INDIRECT_REF' expression.
  
! `load_multiple'
       Load several consecutive memory locations into consecutive
       registers.  Operand 0 is the first of the consecutive registers,
       operand 1 is the first memory location, and operand 2 is a
--- 22752,22826 ----
       reloads.
  
       If a scratch register is required to move an object to or from
!      memory, it can be allocated using 'gen_reg_rtx' prior to life
       analysis.
  
       If there are cases which need scratch registers during or after
       reload, you must provide an appropriate secondary_reload target
       hook.
  
!      The macro 'can_create_pseudo_p' can be used to determine if it is
       unsafe to create new pseudo registers.  If this variable is
!      nonzero, then it is unsafe to call 'gen_reg_rtx' to allocate a new
       pseudo.
  
!      The constraints on a 'movM' must permit moving any hard register to
!      any other hard register provided that 'HARD_REGNO_MODE_OK' permits
!      mode M in both registers and 'TARGET_REGISTER_MOVE_COST' applied to
!      their classes returns a value of 2.
  
!      It is obligatory to support floating point 'movM' instructions into
!      and out of any registers that can hold fixed point values, because
!      unions and structures (which have modes 'SImode' or 'DImode') can
!      be in those registers and they may have floating point members.
  
!      There may also be a need to support fixed point 'movM' instructions
!      in and out of floating point registers.  Unfortunately, I have
!      forgotten why this was so, and I don't know whether it is still
!      true.  If 'HARD_REGNO_MODE_OK' rejects fixed point values in
!      floating point registers, then the constraints of the fixed point
!      'movM' instructions must be designed to avoid ever trying to reload
!      into a floating point register.
  
! 'reload_inM'
! 'reload_outM'
       These named patterns have been obsoleted by the target hook
!      'secondary_reload'.
  
!      Like 'movM', but used when a scratch register is required to move
       between operand 0 and operand 1.  Operand 2 describes the scratch
!      register.  See the discussion of the 'SECONDARY_RELOAD_CLASS' macro
!      in *note Register Classes::.
  
!      There are special restrictions on the form of the 'match_operand's
       used in these patterns.  First, only the predicate for the reload
!      operand is examined, i.e., 'reload_in' examines operand 1, but not
       the predicates for operand 0 or 2.  Second, there may be only one
       alternative in the constraints.  Third, only a single register
       class letter may be used for the constraint; subsequent constraint
       letters are ignored.  As a special exception, an empty constraint
!      string matches the 'ALL_REGS' register class.  This may relieve
!      ports of the burden of defining an 'ALL_REGS' constraint letter
       just for these patterns.
  
! 'movstrictM'
!      Like 'movM' except that if operand 0 is a 'subreg' with mode M of a
!      register whose natural mode is wider, the 'movstrictM' instruction
!      is guaranteed not to alter any of the register except the part
!      which belongs to mode M.
  
! 'movmisalignM'
       This variant of a move pattern is designed to load or store a value
       from a memory address that is not naturally aligned for its mode.
       For a store, the memory will be in operand 0; for a load, the
       memory will be in operand 1.  The other operand is guaranteed not
!      to be a memory, so that it's easy to tell whether this is a load or
!      store.
  
       This pattern is used by the autovectorizer, and when expanding a
!      'MISALIGNED_INDIRECT_REF' expression.
  
! 'load_multiple'
       Load several consecutive memory locations into consecutive
       registers.  Operand 0 is the first of the consecutive registers,
       operand 1 is the first memory location, and operand 2 is a
*************** pattern to accomplish a certain task.
*** 23202,23223 ****
       On some machines, there are restrictions as to which consecutive
       registers can be stored into memory, such as particular starting or
       ending register numbers or only a range of valid counts.  For those
!      machines, use a `define_expand' (*note Expander Definitions::) and
       make the pattern fail if the restrictions are not met.
  
!      Write the generated insn as a `parallel' with elements being a
!      `set' of one register from the appropriate memory location (you may
!      also need `use' or `clobber' elements).  Use a `match_parallel'
!      (*note RTL Template::) to recognize the insn.  See `rs6000.md' for
       examples of the use of this insn pattern.
  
! `store_multiple'
!      Similar to `load_multiple', but store several consecutive registers
       into consecutive memory locations.  Operand 0 is the first of the
       consecutive memory locations, operand 1 is the first register, and
       operand 2 is a constant: the number of consecutive registers.
  
! `vec_load_lanesMN'
       Perform an interleaved load of several vectors from memory operand
       1 into register operand 0.  Both operands have mode M.  The
       register operand is viewed as holding consecutive vectors of mode
--- 22834,22855 ----
       On some machines, there are restrictions as to which consecutive
       registers can be stored into memory, such as particular starting or
       ending register numbers or only a range of valid counts.  For those
!      machines, use a 'define_expand' (*note Expander Definitions::) and
       make the pattern fail if the restrictions are not met.
  
!      Write the generated insn as a 'parallel' with elements being a
!      'set' of one register from the appropriate memory location (you may
!      also need 'use' or 'clobber' elements).  Use a 'match_parallel'
!      (*note RTL Template::) to recognize the insn.  See 'rs6000.md' for
       examples of the use of this insn pattern.
  
! 'store_multiple'
!      Similar to 'load_multiple', but store several consecutive registers
       into consecutive memory locations.  Operand 0 is the first of the
       consecutive memory locations, operand 1 is the first register, and
       operand 2 is a constant: the number of consecutive registers.
  
! 'vec_load_lanesMN'
       Perform an interleaved load of several vectors from memory operand
       1 into register operand 0.  Both operands have mode M.  The
       register operand is viewed as holding consecutive vectors of mode
*************** pattern to accomplish a certain task.
*** 23229,23237 ****
              for (i = 0; i < c; i++)
                operand0[i][j] = operand1[j * c + i];
  
!      For example, `vec_load_lanestiv4hi' loads 8 16-bit values from
!      memory into a register of mode `TI'.  The register contains two
!      consecutive vectors of mode `V4HI'.
  
       This pattern can only be used if:
            TARGET_ARRAY_MODE_SUPPORTED_P (N, C)
--- 22861,22869 ----
              for (i = 0; i < c; i++)
                operand0[i][j] = operand1[j * c + i];
  
!      For example, 'vec_load_lanestiv4hi' loads 8 16-bit values from
!      memory into a register of mode 'TI'.  The register contains two
!      consecutive vectors of mode 'V4HI'.
  
       This pattern can only be used if:
            TARGET_ARRAY_MODE_SUPPORTED_P (N, C)
*************** pattern to accomplish a certain task.
*** 23239,23248 ****
       instruction for some mode N, it also supports unaligned loads for
       vectors of mode N.
  
!      This pattern is not allowed to `FAIL'.
  
! `vec_store_lanesMN'
!      Equivalent to `vec_load_lanesMN', with the memory and register
       operands reversed.  That is, the instruction is equivalent to:
  
            int c = GET_MODE_SIZE (M) / GET_MODE_SIZE (N);
--- 22871,22880 ----
       instruction for some mode N, it also supports unaligned loads for
       vectors of mode N.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'vec_store_lanesMN'
!      Equivalent to 'vec_load_lanesMN', with the memory and register
       operands reversed.  That is, the instruction is equivalent to:
  
            int c = GET_MODE_SIZE (M) / GET_MODE_SIZE (N);
*************** pattern to accomplish a certain task.
*** 23252,23536 ****
  
       for a memory operand 0 and register operand 1.
  
!      This pattern is not allowed to `FAIL'.
  
! `vec_setM'
       Set given field in the vector value.  Operand 0 is the vector to
       modify, operand 1 is new value of field and operand 2 specify the
       field index.
  
! `vec_extractM'
       Extract given field from the vector value.  Operand 1 is the
       vector, operand 2 specify field index and operand 0 place to store
       value into.
  
! `vec_initM'
       Initialize the vector to given values.  Operand 0 is the vector to
       initialize and operand 1 is parallel containing values for
       individual fields.
  
! `vec_cmpMN'
!      Output a vector comparison.  Operand 0 of mode N is the
!      destination for predicate in operand 1 which is a signed vector
!      comparison with operands of mode M in operands 2 and 3.  Predicate
!      is computed by element-wise evaluation of the vector comparison
!      with a truth value of all-ones and a false value of all-zeros.
  
! `vec_cmpuMN'
!      Similar to `vec_cmpMN' but perform unsigned vector comparison.
  
! `vcondMN'
       Output a conditional vector move.  Operand 0 is the destination to
!      receive a combination of operand 1 and operand 2, which are of
!      mode M, dependent on the outcome of the predicate in operand 3
!      which is a signed vector comparison with operands of mode N in
!      operands 4 and 5.  The modes M and N should have the same size.
!      Operand 0 will be set to the value OP1 & MSK | OP2 & ~MSK where
!      MSK is computed by element-wise evaluation of the vector
!      comparison with a truth value of all-ones and a false value of
!      all-zeros.
  
! `vconduMN'
!      Similar to `vcondMN' but performs unsigned vector comparison.
  
! `vcond_mask_MN'
!      Similar to `vcondMN' but operand 3 holds a pre-computed result of
       vector comparison.
  
! `maskloadMN'
       Perform a masked load of vector from memory operand 1 of mode M
       into register operand 0.  Mask is provided in register operand 2 of
       mode N.
  
!      This pattern is not allowed to `FAIL'.
  
! `maskstoreMN'
       Perform a masked store of vector from register operand 1 of mode M
       into memory operand 0.  Mask is provided in register operand 2 of
       mode N.
  
!      This pattern is not allowed to `FAIL'.
  
! `vec_permM'
       Output a (variable) vector permutation.  Operand 0 is the
!      destination to receive elements from operand 1 and operand 2,
!      which are of mode M.  Operand 3 is the "selector".  It is an
!      integral mode vector of the same width and number of elements as
!      mode M.
  
       The input elements are numbered from 0 in operand 1 through 2*N-1
!      in operand 2.  The elements of the selector must be computed
!      modulo 2*N.  Note that if `rtx_equal_p(operand1, operand2)', this
!      can be implemented with just operand 1 and selector elements
!      modulo N.
  
       In order to make things easy for a number of targets, if there is
!      no `vec_perm' pattern for mode M, but there is for mode Q where Q
!      is a vector of `QImode' of the same width as M, the middle-end
!      will lower the mode M `VEC_PERM_EXPR' to mode Q.
  
! `vec_perm_constM'
!      Like `vec_perm' except that the permutation is a compile-time
!      constant.  That is, operand 3, the "selector", is a `CONST_VECTOR'.
  
       Some targets cannot perform a permutation with a variable selector,
       but can efficiently perform a constant permutation.  Further, the
!      target hook `vec_perm_ok' is queried to determine if the specific
!      constant permutation is available efficiently; the named pattern
!      is never expanded without `vec_perm_ok' returning true.
  
!      There is no need for a target to supply both `vec_permM' and
!      `vec_perm_constM' if the former can trivially implement the
       operation with, say, the vector constant loaded into a register.
  
! `pushM1'
       Output a push instruction.  Operand 0 is value to push.  Used only
!      when `PUSH_ROUNDING' is defined.  For historical reason, this
!      pattern may be missing and in such case an `mov' expander is used
!      instead, with a `MEM' expression forming the push operation.  The
!      `mov' expander method is deprecated.
  
! `addM3'
       Add operand 2 and operand 1, storing the result in operand 0.  All
       operands must have mode M.  This can be used even on two-address
       machines, by means of constraints requiring operands 1 and 0 to be
       the same location.
  
! `ssaddM3', `usaddM3'
! `subM3', `sssubM3', `ussubM3'
! `mulM3', `ssmulM3', `usmulM3'
! `divM3', `ssdivM3'
! `udivM3', `usdivM3'
! `modM3', `umodM3'
! `uminM3', `umaxM3'
! `andM3', `iorM3', `xorM3'
       Similar, for other arithmetic operations.
  
! `addvM4'
!      Like `addM3' but takes a `code_label' as operand 3 and emits code
       to jump to it if signed overflow occurs during the addition.  This
       pattern is used to implement the built-in functions performing
       signed integer addition with overflow checking.
  
! `subvM4', `mulvM4'
       Similar, for other signed arithmetic operations.
  
! `uaddvM4'
!      Like `addvM4' but for unsigned addition.  That is to say, the
!      operation is the same as signed addition but the jump is taken
!      only on unsigned overflow.
  
! `usubvM4', `umulvM4'
       Similar, for other unsigned arithmetic operations.
  
! `addptrM3'
!      Like `addM3' but is guaranteed to only be used for address
       calculations.  The expanded code is not allowed to clobber the
!      condition code.  It only needs to be defined if `addM3' sets the
       condition code.  If adds used for address calculations and normal
!      adds are not compatible it is required to expand a distinct
!      pattern (e.g. using an unspec).  The pattern is used by LRA to emit
!      address calculations.  `addM3' is used if `addptrM3' is not
       defined.
  
! `fmaM4'
       Multiply operand 2 and operand 1, then add operand 3, storing the
       result in operand 0 without doing an intermediate rounding step.
       All operands must have mode M.  This pattern is used to implement
!      the `fma', `fmaf', and `fmal' builtin functions from the ISO C99
       standard.
  
! `fmsM4'
!      Like `fmaM4', except operand 3 subtracted from the product instead
       of added to the product.  This is represented in the rtl as
  
            (fma:M OP1 OP2 (neg:M OP3))
  
! `fnmaM4'
!      Like `fmaM4' except that the intermediate product is negated
!      before being added to operand 3.  This is represented in the rtl as
  
            (fma:M (neg:M OP1) OP2 OP3)
  
! `fnmsM4'
!      Like `fmsM4' except that the intermediate product is negated
!      before subtracting operand 3.  This is represented in the rtl as
  
            (fma:M (neg:M OP1) OP2 (neg:M OP3))
  
! `sminM3', `smaxM3'
       Signed minimum and maximum operations.  When used with floating
!      point, if both operands are zeros, or if either operand is `NaN',
!      then it is unspecified which of the two operands is returned as
!      the result.
  
! `fminM3', `fmaxM3'
       IEEE-conformant minimum and maximum operations.  If one operand is
!      a quiet `NaN', then the other operand is returned.  If both
!      operands are quiet `NaN', then a quiet `NaN' is returned.  In the
!      case when gcc supports signalling `NaN' (-fsignaling-nans) an
!      invalid floating point exception is raised and a quiet `NaN' is
       returned.
  
       All operands have mode M, which is a scalar or vector
!      floating-point mode.  These patterns are not allowed to `FAIL'.
  
! `reduc_smin_scal_M', `reduc_smax_scal_M'
!      Find the signed minimum/maximum of the elements of a vector. The
       vector is operand 1, and operand 0 is the scalar result, with mode
       equal to the mode of the elements of the input vector.
  
! `reduc_umin_scal_M', `reduc_umax_scal_M'
!      Find the unsigned minimum/maximum of the elements of a vector. The
       vector is operand 1, and operand 0 is the scalar result, with mode
       equal to the mode of the elements of the input vector.
  
! `reduc_plus_scal_M'
!      Compute the sum of the elements of a vector. The vector is operand
       1, and operand 0 is the scalar result, with mode equal to the mode
       of the elements of the input vector.
  
! `sdot_prodM'
! `udot_prodM'
       Compute the sum of the products of two signed/unsigned elements.
!      Operand 1 and operand 2 are of the same mode. Their product, which
!      is of a wider mode, is computed and added to operand 3. Operand 3
!      is of a mode equal or wider than the mode of the product. The
!      result is placed in operand 0, which is of the same mode as
!      operand 3.
! 
! `ssadM'
  
! `usadM'
       Compute the sum of absolute differences of two signed/unsigned
!      elements.  Operand 1 and operand 2 are of the same mode. Their
       absolute difference, which is of a wider mode, is computed and
!      added to operand 3. Operand 3 is of a mode equal or wider than the
!      mode of the absolute difference. The result is placed in operand
       0, which is of the same mode as operand 3.
  
! `widen_ssumM3'
! `widen_usumM3'
!      Operands 0 and 2 are of the same mode, which is wider than the
!      mode of operand 1. Add operand 1 to operand 2 and place the
!      widened result in operand 0. (This is used express accumulation of
       elements into an accumulator of a wider mode.)
  
! `vec_shr_M'
!      Whole vector right shift in bits, i.e. towards element 0.  Operand
       1 is a vector to be shifted.  Operand 2 is an integer shift amount
       in bits.  Operand 0 is where the resulting shifted vector is
       stored.  The output and input vectors should have the same modes.
  
! `vec_pack_trunc_M'
!      Narrow (demote) and merge the elements of two vectors. Operands 1
       and 2 are vectors of the same mode having N integral or floating
       point elements of size S.  Operand 0 is the resulting vector in
       which 2*N elements of size N/2 are concatenated after narrowing
       them down using truncation.
  
! `vec_pack_ssat_M', `vec_pack_usat_M'
       Narrow (demote) and merge the elements of two vectors.  Operands 1
       and 2 are vectors of the same mode having N integral elements of
!      size S.  Operand 0 is the resulting vector in which the elements
!      of the two input vectors are concatenated after narrowing them
!      down using signed/unsigned saturating arithmetic.
  
! `vec_pack_sfix_trunc_M', `vec_pack_ufix_trunc_M'
       Narrow, convert to signed/unsigned integral type and merge the
       elements of two vectors.  Operands 1 and 2 are vectors of the same
       mode having N floating point elements of size S.  Operand 0 is the
       resulting vector in which 2*N elements of size N/2 are
       concatenated.
  
! `vec_unpacks_hi_M', `vec_unpacks_lo_M'
       Extract and widen (promote) the high/low part of a vector of signed
       integral or floating point elements.  The input vector (operand 1)
!      has N elements of size S.  Widen (promote) the high/low elements
!      of the vector using signed or floating point extension and place
!      the resulting N/2 values of size 2*S in the output vector (operand
!      0).
  
! `vec_unpacku_hi_M', `vec_unpacku_lo_M'
       Extract and widen (promote) the high/low part of a vector of
       unsigned integral elements.  The input vector (operand 1) has N
!      elements of size S.  Widen (promote) the high/low elements of the
       vector using zero extension and place the resulting N/2 values of
       size 2*S in the output vector (operand 0).
  
! `vec_unpacks_float_hi_M', `vec_unpacks_float_lo_M'
! `vec_unpacku_float_hi_M', `vec_unpacku_float_lo_M'
!      Extract, convert to floating point type and widen the high/low
!      part of a vector of signed/unsigned integral elements.  The input
!      vector (operand 1) has N elements of size S.  Convert the high/low
       elements of the vector using floating point conversion and place
       the resulting N/2 values of size 2*S in the output vector (operand
       0).
  
! `vec_widen_umult_hi_M', `vec_widen_umult_lo_M'
! `vec_widen_smult_hi_M', `vec_widen_smult_lo_M'
! `vec_widen_umult_even_M', `vec_widen_umult_odd_M'
! `vec_widen_smult_even_M', `vec_widen_smult_odd_M'
       Signed/Unsigned widening multiplication.  The two inputs (operands
       1 and 2) are vectors with N signed/unsigned elements of size S.
       Multiply the high/low or even/odd elements of the two vectors, and
--- 22884,23163 ----
  
       for a memory operand 0 and register operand 1.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'vec_setM'
       Set given field in the vector value.  Operand 0 is the vector to
       modify, operand 1 is new value of field and operand 2 specify the
       field index.
  
! 'vec_extractM'
       Extract given field from the vector value.  Operand 1 is the
       vector, operand 2 specify field index and operand 0 place to store
       value into.
  
! 'vec_initM'
       Initialize the vector to given values.  Operand 0 is the vector to
       initialize and operand 1 is parallel containing values for
       individual fields.
  
! 'vec_cmpMN'
!      Output a vector comparison.  Operand 0 of mode N is the destination
!      for predicate in operand 1 which is a signed vector comparison with
!      operands of mode M in operands 2 and 3.  Predicate is computed by
!      element-wise evaluation of the vector comparison with a truth value
!      of all-ones and a false value of all-zeros.
  
! 'vec_cmpuMN'
!      Similar to 'vec_cmpMN' but perform unsigned vector comparison.
  
! 'vcondMN'
       Output a conditional vector move.  Operand 0 is the destination to
!      receive a combination of operand 1 and operand 2, which are of mode
!      M, dependent on the outcome of the predicate in operand 3 which is
!      a signed vector comparison with operands of mode N in operands 4
!      and 5.  The modes M and N should have the same size.  Operand 0
!      will be set to the value OP1 & MSK | OP2 & ~MSK where MSK is
!      computed by element-wise evaluation of the vector comparison with a
!      truth value of all-ones and a false value of all-zeros.
  
! 'vconduMN'
!      Similar to 'vcondMN' but performs unsigned vector comparison.
  
! 'vcond_mask_MN'
!      Similar to 'vcondMN' but operand 3 holds a pre-computed result of
       vector comparison.
  
! 'maskloadMN'
       Perform a masked load of vector from memory operand 1 of mode M
       into register operand 0.  Mask is provided in register operand 2 of
       mode N.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'maskstoreMN'
       Perform a masked store of vector from register operand 1 of mode M
       into memory operand 0.  Mask is provided in register operand 2 of
       mode N.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'vec_permM'
       Output a (variable) vector permutation.  Operand 0 is the
!      destination to receive elements from operand 1 and operand 2, which
!      are of mode M.  Operand 3 is the "selector".  It is an integral
!      mode vector of the same width and number of elements as mode M.
  
       The input elements are numbered from 0 in operand 1 through 2*N-1
!      in operand 2.  The elements of the selector must be computed modulo
!      2*N.  Note that if 'rtx_equal_p(operand1, operand2)', this can be
!      implemented with just operand 1 and selector elements modulo N.
  
       In order to make things easy for a number of targets, if there is
!      no 'vec_perm' pattern for mode M, but there is for mode Q where Q
!      is a vector of 'QImode' of the same width as M, the middle-end will
!      lower the mode M 'VEC_PERM_EXPR' to mode Q.
  
! 'vec_perm_constM'
!      Like 'vec_perm' except that the permutation is a compile-time
!      constant.  That is, operand 3, the "selector", is a 'CONST_VECTOR'.
  
       Some targets cannot perform a permutation with a variable selector,
       but can efficiently perform a constant permutation.  Further, the
!      target hook 'vec_perm_ok' is queried to determine if the specific
!      constant permutation is available efficiently; the named pattern is
!      never expanded without 'vec_perm_ok' returning true.
  
!      There is no need for a target to supply both 'vec_permM' and
!      'vec_perm_constM' if the former can trivially implement the
       operation with, say, the vector constant loaded into a register.
  
! 'pushM1'
       Output a push instruction.  Operand 0 is value to push.  Used only
!      when 'PUSH_ROUNDING' is defined.  For historical reason, this
!      pattern may be missing and in such case an 'mov' expander is used
!      instead, with a 'MEM' expression forming the push operation.  The
!      'mov' expander method is deprecated.
  
! 'addM3'
       Add operand 2 and operand 1, storing the result in operand 0.  All
       operands must have mode M.  This can be used even on two-address
       machines, by means of constraints requiring operands 1 and 0 to be
       the same location.
  
! 'ssaddM3', 'usaddM3'
! 'subM3', 'sssubM3', 'ussubM3'
! 'mulM3', 'ssmulM3', 'usmulM3'
! 'divM3', 'ssdivM3'
! 'udivM3', 'usdivM3'
! 'modM3', 'umodM3'
! 'uminM3', 'umaxM3'
! 'andM3', 'iorM3', 'xorM3'
       Similar, for other arithmetic operations.
  
! 'addvM4'
!      Like 'addM3' but takes a 'code_label' as operand 3 and emits code
       to jump to it if signed overflow occurs during the addition.  This
       pattern is used to implement the built-in functions performing
       signed integer addition with overflow checking.
  
! 'subvM4', 'mulvM4'
       Similar, for other signed arithmetic operations.
  
! 'uaddvM4'
!      Like 'addvM4' but for unsigned addition.  That is to say, the
!      operation is the same as signed addition but the jump is taken only
!      on unsigned overflow.
  
! 'usubvM4', 'umulvM4'
       Similar, for other unsigned arithmetic operations.
  
! 'addptrM3'
!      Like 'addM3' but is guaranteed to only be used for address
       calculations.  The expanded code is not allowed to clobber the
!      condition code.  It only needs to be defined if 'addM3' sets the
       condition code.  If adds used for address calculations and normal
!      adds are not compatible it is required to expand a distinct pattern
!      (e.g.  using an unspec).  The pattern is used by LRA to emit
!      address calculations.  'addM3' is used if 'addptrM3' is not
       defined.
  
! 'fmaM4'
       Multiply operand 2 and operand 1, then add operand 3, storing the
       result in operand 0 without doing an intermediate rounding step.
       All operands must have mode M.  This pattern is used to implement
!      the 'fma', 'fmaf', and 'fmal' builtin functions from the ISO C99
       standard.
  
! 'fmsM4'
!      Like 'fmaM4', except operand 3 subtracted from the product instead
       of added to the product.  This is represented in the rtl as
  
            (fma:M OP1 OP2 (neg:M OP3))
  
! 'fnmaM4'
!      Like 'fmaM4' except that the intermediate product is negated before
!      being added to operand 3.  This is represented in the rtl as
  
            (fma:M (neg:M OP1) OP2 OP3)
  
! 'fnmsM4'
!      Like 'fmsM4' except that the intermediate product is negated before
!      subtracting operand 3.  This is represented in the rtl as
  
            (fma:M (neg:M OP1) OP2 (neg:M OP3))
  
! 'sminM3', 'smaxM3'
       Signed minimum and maximum operations.  When used with floating
!      point, if both operands are zeros, or if either operand is 'NaN',
!      then it is unspecified which of the two operands is returned as the
!      result.
  
! 'fminM3', 'fmaxM3'
       IEEE-conformant minimum and maximum operations.  If one operand is
!      a quiet 'NaN', then the other operand is returned.  If both
!      operands are quiet 'NaN', then a quiet 'NaN' is returned.  In the
!      case when gcc supports signalling 'NaN' (-fsignaling-nans) an
!      invalid floating point exception is raised and a quiet 'NaN' is
       returned.
  
       All operands have mode M, which is a scalar or vector
!      floating-point mode.  These patterns are not allowed to 'FAIL'.
  
! 'reduc_smin_scal_M', 'reduc_smax_scal_M'
!      Find the signed minimum/maximum of the elements of a vector.  The
       vector is operand 1, and operand 0 is the scalar result, with mode
       equal to the mode of the elements of the input vector.
  
! 'reduc_umin_scal_M', 'reduc_umax_scal_M'
!      Find the unsigned minimum/maximum of the elements of a vector.  The
       vector is operand 1, and operand 0 is the scalar result, with mode
       equal to the mode of the elements of the input vector.
  
! 'reduc_plus_scal_M'
!      Compute the sum of the elements of a vector.  The vector is operand
       1, and operand 0 is the scalar result, with mode equal to the mode
       of the elements of the input vector.
  
! 'sdot_prodM'
! 'udot_prodM'
       Compute the sum of the products of two signed/unsigned elements.
!      Operand 1 and operand 2 are of the same mode.  Their product, which
!      is of a wider mode, is computed and added to operand 3.  Operand 3
!      is of a mode equal or wider than the mode of the product.  The
!      result is placed in operand 0, which is of the same mode as operand
!      3.
  
! 'ssadM'
! 'usadM'
       Compute the sum of absolute differences of two signed/unsigned
!      elements.  Operand 1 and operand 2 are of the same mode.  Their
       absolute difference, which is of a wider mode, is computed and
!      added to operand 3.  Operand 3 is of a mode equal or wider than the
!      mode of the absolute difference.  The result is placed in operand
       0, which is of the same mode as operand 3.
  
! 'widen_ssumM3'
! 'widen_usumM3'
!      Operands 0 and 2 are of the same mode, which is wider than the mode
!      of operand 1.  Add operand 1 to operand 2 and place the widened
!      result in operand 0.  (This is used express accumulation of
       elements into an accumulator of a wider mode.)
  
! 'vec_shr_M'
!      Whole vector right shift in bits, i.e.  towards element 0.  Operand
       1 is a vector to be shifted.  Operand 2 is an integer shift amount
       in bits.  Operand 0 is where the resulting shifted vector is
       stored.  The output and input vectors should have the same modes.
  
! 'vec_pack_trunc_M'
!      Narrow (demote) and merge the elements of two vectors.  Operands 1
       and 2 are vectors of the same mode having N integral or floating
       point elements of size S.  Operand 0 is the resulting vector in
       which 2*N elements of size N/2 are concatenated after narrowing
       them down using truncation.
  
! 'vec_pack_ssat_M', 'vec_pack_usat_M'
       Narrow (demote) and merge the elements of two vectors.  Operands 1
       and 2 are vectors of the same mode having N integral elements of
!      size S. Operand 0 is the resulting vector in which the elements of
!      the two input vectors are concatenated after narrowing them down
!      using signed/unsigned saturating arithmetic.
  
! 'vec_pack_sfix_trunc_M', 'vec_pack_ufix_trunc_M'
       Narrow, convert to signed/unsigned integral type and merge the
       elements of two vectors.  Operands 1 and 2 are vectors of the same
       mode having N floating point elements of size S.  Operand 0 is the
       resulting vector in which 2*N elements of size N/2 are
       concatenated.
  
! 'vec_unpacks_hi_M', 'vec_unpacks_lo_M'
       Extract and widen (promote) the high/low part of a vector of signed
       integral or floating point elements.  The input vector (operand 1)
!      has N elements of size S.  Widen (promote) the high/low elements of
!      the vector using signed or floating point extension and place the
!      resulting N/2 values of size 2*S in the output vector (operand 0).
  
! 'vec_unpacku_hi_M', 'vec_unpacku_lo_M'
       Extract and widen (promote) the high/low part of a vector of
       unsigned integral elements.  The input vector (operand 1) has N
!      elements of size S. Widen (promote) the high/low elements of the
       vector using zero extension and place the resulting N/2 values of
       size 2*S in the output vector (operand 0).
  
! 'vec_unpacks_float_hi_M', 'vec_unpacks_float_lo_M'
! 'vec_unpacku_float_hi_M', 'vec_unpacku_float_lo_M'
!      Extract, convert to floating point type and widen the high/low part
!      of a vector of signed/unsigned integral elements.  The input vector
!      (operand 1) has N elements of size S.  Convert the high/low
       elements of the vector using floating point conversion and place
       the resulting N/2 values of size 2*S in the output vector (operand
       0).
  
! 'vec_widen_umult_hi_M', 'vec_widen_umult_lo_M'
! 'vec_widen_smult_hi_M', 'vec_widen_smult_lo_M'
! 'vec_widen_umult_even_M', 'vec_widen_umult_odd_M'
! 'vec_widen_smult_even_M', 'vec_widen_smult_odd_M'
       Signed/Unsigned widening multiplication.  The two inputs (operands
       1 and 2) are vectors with N signed/unsigned elements of size S.
       Multiply the high/low or even/odd elements of the two vectors, and
*************** pattern to accomplish a certain task.
*** 23538,24098 ****
       A target shouldn't implement even/odd pattern pair if it is less
       efficient than lo/hi one.
  
! `vec_widen_ushiftl_hi_M', `vec_widen_ushiftl_lo_M'
! `vec_widen_sshiftl_hi_M', `vec_widen_sshiftl_lo_M'
       Signed/Unsigned widening shift left.  The first input (operand 1)
       is a vector with N signed/unsigned elements of size S.  Operand 2
       is a constant.  Shift the high/low elements of operand 1, and put
       the N/2 results of size 2*S in the output vector (operand 0).
  
! `mulhisi3'
!      Multiply operands 1 and 2, which have mode `HImode', and store a
!      `SImode' product in operand 0.
  
! `mulqihi3', `mulsidi3'
       Similar widening-multiplication instructions of other widths.
  
! `umulqihi3', `umulhisi3', `umulsidi3'
       Similar widening-multiplication instructions that do unsigned
       multiplication.
  
! `usmulqihi3', `usmulhisi3', `usmulsidi3'
       Similar widening-multiplication instructions that interpret the
!      first operand as unsigned and the second operand as signed, then
!      do a signed multiplication.
  
! `smulM3_highpart'
       Perform a signed multiplication of operands 1 and 2, which have
       mode M, and store the most significant half of the product in
       operand 0.  The least significant half of the product is discarded.
  
! `umulM3_highpart'
       Similar, but the multiplication is unsigned.
  
! `maddMN4'
       Multiply operands 1 and 2, sign-extend them to mode N, add operand
!      3, and store the result in operand 0.  Operands 1 and 2 have mode
!      M and operands 0 and 3 have mode N.  Both modes must be integer or
       fixed-point modes and N must be twice the size of M.
  
!      In other words, `maddMN4' is like `mulMN3' except that it also
!      adds operand 3.
  
!      These instructions are not allowed to `FAIL'.
  
! `umaddMN4'
!      Like `maddMN4', but zero-extend the multiplication operands
!      instead of sign-extending them.
  
! `ssmaddMN4'
!      Like `maddMN4', but all involved operations must be
       signed-saturating.
  
! `usmaddMN4'
!      Like `umaddMN4', but all involved operations must be
       unsigned-saturating.
  
! `msubMN4'
       Multiply operands 1 and 2, sign-extend them to mode N, subtract the
!      result from operand 3, and store the result in operand 0.
!      Operands 1 and 2 have mode M and operands 0 and 3 have mode N.
!      Both modes must be integer or fixed-point modes and N must be twice
!      the size of M.
  
!      In other words, `msubMN4' is like `mulMN3' except that it also
       subtracts the result from operand 3.
  
!      These instructions are not allowed to `FAIL'.
  
! `umsubMN4'
!      Like `msubMN4', but zero-extend the multiplication operands
!      instead of sign-extending them.
  
! `ssmsubMN4'
!      Like `msubMN4', but all involved operations must be
       signed-saturating.
  
! `usmsubMN4'
!      Like `umsubMN4', but all involved operations must be
       unsigned-saturating.
  
! `divmodM4'
       Signed division that produces both a quotient and a remainder.
       Operand 1 is divided by operand 2 to produce a quotient stored in
       operand 0 and a remainder stored in operand 3.
  
       For machines with an instruction that produces both a quotient and
!      a remainder, provide a pattern for `divmodM4' but do not provide
!      patterns for `divM3' and `modM3'.  This allows optimization in the
       relatively common case when both the quotient and remainder are
       computed.
  
       If an instruction that just produces a quotient or just a remainder
       exists and is more efficient than the instruction that produces
!      both, write the output routine of `divmodM4' to call
!      `find_reg_note' and look for a `REG_UNUSED' note on the quotient
!      or remainder and generate the appropriate instruction.
  
! `udivmodM4'
       Similar, but does unsigned division.
  
! `ashlM3', `ssashlM3', `usashlM3'
       Arithmetic-shift operand 1 left by a number of bits specified by
       operand 2, and store the result in operand 0.  Here M is the mode
       of operand 0 and operand 1; operand 2's mode is specified by the
       instruction pattern, and the compiler will convert the operand to
       that mode before generating the instruction.  The shift or rotate
       expander or instruction pattern should explicitly specify the mode
!      of the operand 2, it should never be `VOIDmode'.  The meaning of
       out-of-range shift counts can optionally be specified by
!      `TARGET_SHIFT_TRUNCATION_MASK'.  *Note
       TARGET_SHIFT_TRUNCATION_MASK::.  Operand 2 is always a scalar type.
  
! `ashrM3', `lshrM3', `rotlM3', `rotrM3'
!      Other shift and rotate instructions, analogous to the `ashlM3'
       instructions.  Operand 2 is always a scalar type.
  
! `vashlM3', `vashrM3', `vlshrM3', `vrotlM3', `vrotrM3'
       Vector shift and rotate instructions that take vectors as operand 2
       instead of a scalar type.
  
! `bswapM2'
       Reverse the order of bytes of operand 1 and store the result in
       operand 0.
  
! `negM2', `ssnegM2', `usnegM2'
       Negate operand 1 and store the result in operand 0.
  
! `negvM3'
!      Like `negM2' but takes a `code_label' as operand 2 and emits code
       to jump to it if signed overflow occurs during the negation.
  
! `absM2'
       Store the absolute value of operand 1 into operand 0.
  
! `sqrtM2'
       Store the square root of operand 1 into operand 0.  Both operands
       have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `rsqrtM2'
       Store the reciprocal of the square root of operand 1 into operand
       0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
       On most architectures this pattern is only approximate, so either
!      its C condition or the `TARGET_OPTAB_SUPPORTED_P' hook should
!      check for the appropriate math flags.  (Using the C condition is
!      more direct, but using `TARGET_OPTAB_SUPPORTED_P' can be useful if
!      a target-specific built-in also uses the `rsqrtM2' pattern.)
  
!      This pattern is not allowed to `FAIL'.
  
! `fmodM3'
!      Store the remainder of dividing operand 1 by operand 2 into
!      operand 0, rounded towards zero to an integer.  All operands have
!      mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `remainderM3'
!      Store the remainder of dividing operand 1 by operand 2 into
!      operand 0, rounded to the nearest integer.  All operands have mode
!      M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `scalbM3'
!      Raise `FLT_RADIX' to the power of operand 2, multiply it by
!      operand 1, and store the result in operand 0.  All operands have
!      mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `ldexpM3'
       Raise 2 to the power of operand 2, multiply it by operand 1, and
!      store the result in operand 0.  Operands 0 and 1 have mode M,
!      which is a scalar or vector floating-point mode.  Operand 2's mode
!      has the same number of elements as M and each element is wide
!      enough to store an `int'.  The integers are signed.
  
!      This pattern is not allowed to `FAIL'.
  
! `cosM2'
       Store the cosine of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `sinM2'
       Store the sine of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `sincosM3'
       Store the cosine of operand 2 into operand 0 and the sine of
       operand 2 into operand 1.  All operands have mode M, which is a
       scalar or vector floating-point mode.
  
       Targets that can calculate the sine and cosine simultaneously can
       implement this pattern as opposed to implementing individual
!      `sinM2' and `cosM2' patterns.  The `sin' and `cos' built-in
!      functions will then be expanded to the `sincosM3' pattern, with
!      one of the output values left unused.
  
! `tanM2'
       Store the tangent of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `asinM2'
       Store the arc sine of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `acosM2'
       Store the arc cosine of operand 1 into operand 0.  Both operands
       have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `atanM2'
       Store the arc tangent of operand 1 into operand 0.  Both operands
       have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `expM2'
       Raise e (the base of natural logarithms) to the power of operand 1
       and store the result in operand 0.  Both operands have mode M,
       which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `expm1M2'
       Raise e (the base of natural logarithms) to the power of operand 1,
       subtract 1, and store the result in operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
       For inputs close to zero, the pattern is expected to be more
!      accurate than a separate `expM2' and `subM3' would be.
  
!      This pattern is not allowed to `FAIL'.
  
! `exp10M2'
       Raise 10 to the power of operand 1 and store the result in operand
       0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `exp2M2'
       Raise 2 to the power of operand 1 and store the result in operand
       0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `logM2'
       Store the natural logarithm of operand 1 into operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `log1pM2'
       Add 1 to operand 1, compute the natural logarithm, and store the
       result in operand 0.  Both operands have mode M, which is a scalar
       or vector floating-point mode.
  
       For inputs close to zero, the pattern is expected to be more
!      accurate than a separate `addM3' and `logM2' would be.
  
!      This pattern is not allowed to `FAIL'.
  
! `log10M2'
       Store the base-10 logarithm of operand 1 into operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `log2M2'
       Store the base-2 logarithm of operand 1 into operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `logbM2'
!      Store the base-`FLT_RADIX' logarithm of operand 1 into operand 0.
       Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `significandM2'
       Store the significand of floating-point operand 1 in operand 0.
       Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `powM3'
       Store the value of operand 1 raised to the exponent operand 2 into
       operand 0.  All operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `atan2M3'
       Store the arc tangent (inverse tangent) of operand 1 divided by
       operand 2 into operand 0, using the signs of both arguments to
       determine the quadrant of the result.  All operands have mode M,
       which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `floorM2'
       Store the largest integral value not greater than operand 1 in
       operand 0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `btruncM2'
       Round operand 1 to an integer, towards zero, and store the result
       in operand 0.  Both operands have mode M, which is a scalar or
       vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `roundM2'
       Round operand 1 to the nearest integer, rounding away from zero in
       the event of a tie, and store the result in operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `ceilM2'
       Store the smallest integral value not less than operand 1 in
       operand 0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `nearbyintM2'
       Round operand 1 to an integer, using the current rounding mode, and
       store the result in operand 0.  Do not raise an inexact condition
!      when the result is different from the argument.  Both operands
!      have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `rintM2'
       Round operand 1 to an integer, using the current rounding mode, and
!      store the result in operand 0.  Raise an inexact condition when
!      the result is different from the argument.  Both operands have mode
!      M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `lrintMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number according to the current rounding mode
       and store in operand 0 (which has mode N).
  
! `lroundMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number rounding to nearest and away from zero
       and store in operand 0 (which has mode N).
  
! `lfloorMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number rounding down and store in operand 0
       (which has mode N).
  
! `lceilMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
!      mode N as a signed number rounding up and store in operand 0
!      (which has mode N).
  
! `copysignM3'
       Store a value with the magnitude of operand 1 and the sign of
       operand 2 into operand 0.  All operands have mode M, which is a
       scalar or vector floating-point mode.
  
!      This pattern is not allowed to `FAIL'.
  
! `ffsM2'
       Store into operand 0 one plus the index of the least significant
       1-bit of operand 1.  If operand 1 is zero, store zero.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar
!      integer mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as `int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to `FAIL'.
  
! `clrsbM2'
!      Count leading redundant sign bits.  Store into operand 0 the
!      number of redundant sign bits in operand 1, starting at the most
       significant bit position.  A redundant sign bit is defined as any
!      sign bit after the first. As such, this count will be one less
       than the count of leading sign bits.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar
!      integer mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as `int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to `FAIL'.
  
! `clzM2'
       Store into operand 0 the number of leading 0-bits in operand 1,
       starting at the most significant bit position.  If operand 1 is 0,
!      the `CLZ_DEFINED_VALUE_AT_ZERO' (*note Misc::) macro defines if
!      the result is undefined or has a useful value.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar
!      integer mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as `int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to `FAIL'.
  
! `ctzM2'
       Store into operand 0 the number of trailing 0-bits in operand 1,
!      starting at the least significant bit position.  If operand 1 is
!      0, the `CTZ_DEFINED_VALUE_AT_ZERO' (*note Misc::) macro defines if
!      the result is undefined or has a useful value.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar
!      integer mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as `int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to `FAIL'.
  
! `popcountM2'
       Store into operand 0 the number of 1-bits in operand 1.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar
!      integer mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as `int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to `FAIL'.
  
! `parityM2'
       Store into operand 0 the parity of operand 1, i.e. the number of
       1-bits in operand 1 modulo 2.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar
!      integer mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as `int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to `FAIL'.
  
! `one_cmplM2'
       Store the bitwise-complement of operand 1 into operand 0.
  
! `movmemM'
       Block move instruction.  The destination and source blocks of
!      memory are the first two operands, and both are `mem:BLK's with an
!      address in mode `Pmode'.
  
       The number of bytes to move is the third operand, in mode M.
!      Usually, you specify `Pmode' for M.  However, if you can generate
       better code knowing the range of valid lengths is smaller than
       those representable in a full Pmode pointer, you should provide a
       pattern with a mode corresponding to the range of values you can
!      handle efficiently (e.g., `QImode' for values in the range 0-127;
!      note we avoid numbers that appear negative) and also a pattern
!      with `Pmode'.
  
       The fourth operand is the known shared alignment of the source and
!      destination, in the form of a `const_int' rtx.  Thus, if the
       compiler knows that both source and destination are word-aligned,
       it may provide the value 4 for this operand.
  
       Optional operands 5 and 6 specify expected alignment and size of
       block respectively.  The expected alignment differs from alignment
       in operand 4 in a way that the blocks are not required to be
!      aligned according to it in all cases. This expected alignment is
       also in bytes, just like operand 4.  Expected size, when unknown,
!      is set to `(const_int -1)'.
  
!      Descriptions of multiple `movmemM' patterns can only be beneficial
       if the patterns for smaller modes have fewer restrictions on their
       first, second and fourth operands.  Note that the mode M in
!      `movmemM' does not impose any restriction on the mode of
       individually moved data units in the block.
  
       These patterns need not give special consideration to the
       possibility that the source and destination strings might overlap.
  
! `movstr'
!      String copy instruction, with `stpcpy' semantics.  Operand 0 is an
!      output operand in mode `Pmode'.  The addresses of the destination
!      and source strings are operands 1 and 2, and both are `mem:BLK's
!      with addresses in mode `Pmode'.  The execution of the expansion of
       this pattern should store in operand 0 the address in which the
!      `NUL' terminator was stored in the destination string.
  
       This patern has also several optional operands that are same as in
!      `setmem'.
  
! `setmemM'
       Block set instruction.  The destination string is the first
!      operand, given as a `mem:BLK' whose address is in mode `Pmode'.
       The number of bytes to set is the second operand, in mode M.  The
!      value to initialize the memory with is the third operand. Targets
       that only support the clearing of memory should reject any value
!      that is not the constant 0.  See `movmemM' for a discussion of the
       choice of mode.
  
       The fourth operand is the known alignment of the destination, in
!      the form of a `const_int' rtx.  Thus, if the compiler knows that
       the destination is word-aligned, it may provide the value 4 for
       this operand.
  
       Optional operands 5 and 6 specify expected alignment and size of
       block respectively.  The expected alignment differs from alignment
       in operand 4 in a way that the blocks are not required to be
!      aligned according to it in all cases. This expected alignment is
       also in bytes, just like operand 4.  Expected size, when unknown,
!      is set to `(const_int -1)'.  Operand 7 is the minimal size of the
       block and operand 8 is the maximal size of the block (NULL if it
!      can not be represented as CONST_INT).  Operand 9 is the probable
!      maximal size (i.e. we can not rely on it for correctness, but it
       can be used for choosing proper code sequence for a given size).
  
!      The use for multiple `setmemM' is as for `movmemM'.
  
! `cmpstrnM'
       String compare instruction, with five operands.  Operand 0 is the
       output; it has mode M.  The remaining four operands are like the
!      operands of `movmemM'.  The two memory blocks specified are
       compared byte by byte in lexicographic order starting at the
       beginning of each string.  The instruction is not allowed to
       prefetch more than one byte at a time since either string may end
--- 23165,23725 ----
       A target shouldn't implement even/odd pattern pair if it is less
       efficient than lo/hi one.
  
! 'vec_widen_ushiftl_hi_M', 'vec_widen_ushiftl_lo_M'
! 'vec_widen_sshiftl_hi_M', 'vec_widen_sshiftl_lo_M'
       Signed/Unsigned widening shift left.  The first input (operand 1)
       is a vector with N signed/unsigned elements of size S.  Operand 2
       is a constant.  Shift the high/low elements of operand 1, and put
       the N/2 results of size 2*S in the output vector (operand 0).
  
! 'mulhisi3'
!      Multiply operands 1 and 2, which have mode 'HImode', and store a
!      'SImode' product in operand 0.
  
! 'mulqihi3', 'mulsidi3'
       Similar widening-multiplication instructions of other widths.
  
! 'umulqihi3', 'umulhisi3', 'umulsidi3'
       Similar widening-multiplication instructions that do unsigned
       multiplication.
  
! 'usmulqihi3', 'usmulhisi3', 'usmulsidi3'
       Similar widening-multiplication instructions that interpret the
!      first operand as unsigned and the second operand as signed, then do
!      a signed multiplication.
  
! 'smulM3_highpart'
       Perform a signed multiplication of operands 1 and 2, which have
       mode M, and store the most significant half of the product in
       operand 0.  The least significant half of the product is discarded.
  
! 'umulM3_highpart'
       Similar, but the multiplication is unsigned.
  
! 'maddMN4'
       Multiply operands 1 and 2, sign-extend them to mode N, add operand
!      3, and store the result in operand 0.  Operands 1 and 2 have mode M
!      and operands 0 and 3 have mode N.  Both modes must be integer or
       fixed-point modes and N must be twice the size of M.
  
!      In other words, 'maddMN4' is like 'mulMN3' except that it also adds
!      operand 3.
  
!      These instructions are not allowed to 'FAIL'.
  
! 'umaddMN4'
!      Like 'maddMN4', but zero-extend the multiplication operands instead
!      of sign-extending them.
  
! 'ssmaddMN4'
!      Like 'maddMN4', but all involved operations must be
       signed-saturating.
  
! 'usmaddMN4'
!      Like 'umaddMN4', but all involved operations must be
       unsigned-saturating.
  
! 'msubMN4'
       Multiply operands 1 and 2, sign-extend them to mode N, subtract the
!      result from operand 3, and store the result in operand 0.  Operands
!      1 and 2 have mode M and operands 0 and 3 have mode N.  Both modes
!      must be integer or fixed-point modes and N must be twice the size
!      of M.
  
!      In other words, 'msubMN4' is like 'mulMN3' except that it also
       subtracts the result from operand 3.
  
!      These instructions are not allowed to 'FAIL'.
  
! 'umsubMN4'
!      Like 'msubMN4', but zero-extend the multiplication operands instead
!      of sign-extending them.
  
! 'ssmsubMN4'
!      Like 'msubMN4', but all involved operations must be
       signed-saturating.
  
! 'usmsubMN4'
!      Like 'umsubMN4', but all involved operations must be
       unsigned-saturating.
  
! 'divmodM4'
       Signed division that produces both a quotient and a remainder.
       Operand 1 is divided by operand 2 to produce a quotient stored in
       operand 0 and a remainder stored in operand 3.
  
       For machines with an instruction that produces both a quotient and
!      a remainder, provide a pattern for 'divmodM4' but do not provide
!      patterns for 'divM3' and 'modM3'.  This allows optimization in the
       relatively common case when both the quotient and remainder are
       computed.
  
       If an instruction that just produces a quotient or just a remainder
       exists and is more efficient than the instruction that produces
!      both, write the output routine of 'divmodM4' to call
!      'find_reg_note' and look for a 'REG_UNUSED' note on the quotient or
!      remainder and generate the appropriate instruction.
  
! 'udivmodM4'
       Similar, but does unsigned division.
  
! 'ashlM3', 'ssashlM3', 'usashlM3'
       Arithmetic-shift operand 1 left by a number of bits specified by
       operand 2, and store the result in operand 0.  Here M is the mode
       of operand 0 and operand 1; operand 2's mode is specified by the
       instruction pattern, and the compiler will convert the operand to
       that mode before generating the instruction.  The shift or rotate
       expander or instruction pattern should explicitly specify the mode
!      of the operand 2, it should never be 'VOIDmode'.  The meaning of
       out-of-range shift counts can optionally be specified by
!      'TARGET_SHIFT_TRUNCATION_MASK'.  *Note
       TARGET_SHIFT_TRUNCATION_MASK::.  Operand 2 is always a scalar type.
  
! 'ashrM3', 'lshrM3', 'rotlM3', 'rotrM3'
!      Other shift and rotate instructions, analogous to the 'ashlM3'
       instructions.  Operand 2 is always a scalar type.
  
! 'vashlM3', 'vashrM3', 'vlshrM3', 'vrotlM3', 'vrotrM3'
       Vector shift and rotate instructions that take vectors as operand 2
       instead of a scalar type.
  
! 'bswapM2'
       Reverse the order of bytes of operand 1 and store the result in
       operand 0.
  
! 'negM2', 'ssnegM2', 'usnegM2'
       Negate operand 1 and store the result in operand 0.
  
! 'negvM3'
!      Like 'negM2' but takes a 'code_label' as operand 2 and emits code
       to jump to it if signed overflow occurs during the negation.
  
! 'absM2'
       Store the absolute value of operand 1 into operand 0.
  
! 'sqrtM2'
       Store the square root of operand 1 into operand 0.  Both operands
       have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'rsqrtM2'
       Store the reciprocal of the square root of operand 1 into operand
       0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
       On most architectures this pattern is only approximate, so either
!      its C condition or the 'TARGET_OPTAB_SUPPORTED_P' hook should check
!      for the appropriate math flags.  (Using the C condition is more
!      direct, but using 'TARGET_OPTAB_SUPPORTED_P' can be useful if a
!      target-specific built-in also uses the 'rsqrtM2' pattern.)
  
!      This pattern is not allowed to 'FAIL'.
  
! 'fmodM3'
!      Store the remainder of dividing operand 1 by operand 2 into operand
!      0, rounded towards zero to an integer.  All operands have mode M,
!      which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'remainderM3'
!      Store the remainder of dividing operand 1 by operand 2 into operand
!      0, rounded to the nearest integer.  All operands have mode M, which
!      is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'scalbM3'
!      Raise 'FLT_RADIX' to the power of operand 2, multiply it by operand
!      1, and store the result in operand 0.  All operands have mode M,
!      which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'ldexpM3'
       Raise 2 to the power of operand 2, multiply it by operand 1, and
!      store the result in operand 0.  Operands 0 and 1 have mode M, which
!      is a scalar or vector floating-point mode.  Operand 2's mode has
!      the same number of elements as M and each element is wide enough to
!      store an 'int'.  The integers are signed.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'cosM2'
       Store the cosine of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'sinM2'
       Store the sine of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'sincosM3'
       Store the cosine of operand 2 into operand 0 and the sine of
       operand 2 into operand 1.  All operands have mode M, which is a
       scalar or vector floating-point mode.
  
       Targets that can calculate the sine and cosine simultaneously can
       implement this pattern as opposed to implementing individual
!      'sinM2' and 'cosM2' patterns.  The 'sin' and 'cos' built-in
!      functions will then be expanded to the 'sincosM3' pattern, with one
!      of the output values left unused.
  
! 'tanM2'
       Store the tangent of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'asinM2'
       Store the arc sine of operand 1 into operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'acosM2'
       Store the arc cosine of operand 1 into operand 0.  Both operands
       have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'atanM2'
       Store the arc tangent of operand 1 into operand 0.  Both operands
       have mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'expM2'
       Raise e (the base of natural logarithms) to the power of operand 1
       and store the result in operand 0.  Both operands have mode M,
       which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'expm1M2'
       Raise e (the base of natural logarithms) to the power of operand 1,
       subtract 1, and store the result in operand 0.  Both operands have
       mode M, which is a scalar or vector floating-point mode.
  
       For inputs close to zero, the pattern is expected to be more
!      accurate than a separate 'expM2' and 'subM3' would be.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'exp10M2'
       Raise 10 to the power of operand 1 and store the result in operand
       0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'exp2M2'
       Raise 2 to the power of operand 1 and store the result in operand
       0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'logM2'
       Store the natural logarithm of operand 1 into operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'log1pM2'
       Add 1 to operand 1, compute the natural logarithm, and store the
       result in operand 0.  Both operands have mode M, which is a scalar
       or vector floating-point mode.
  
       For inputs close to zero, the pattern is expected to be more
!      accurate than a separate 'addM3' and 'logM2' would be.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'log10M2'
       Store the base-10 logarithm of operand 1 into operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'log2M2'
       Store the base-2 logarithm of operand 1 into operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'logbM2'
!      Store the base-'FLT_RADIX' logarithm of operand 1 into operand 0.
       Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'significandM2'
       Store the significand of floating-point operand 1 in operand 0.
       Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'powM3'
       Store the value of operand 1 raised to the exponent operand 2 into
       operand 0.  All operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'atan2M3'
       Store the arc tangent (inverse tangent) of operand 1 divided by
       operand 2 into operand 0, using the signs of both arguments to
       determine the quadrant of the result.  All operands have mode M,
       which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'floorM2'
       Store the largest integral value not greater than operand 1 in
       operand 0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'btruncM2'
       Round operand 1 to an integer, towards zero, and store the result
       in operand 0.  Both operands have mode M, which is a scalar or
       vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'roundM2'
       Round operand 1 to the nearest integer, rounding away from zero in
       the event of a tie, and store the result in operand 0.  Both
       operands have mode M, which is a scalar or vector floating-point
       mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'ceilM2'
       Store the smallest integral value not less than operand 1 in
       operand 0.  Both operands have mode M, which is a scalar or vector
       floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'nearbyintM2'
       Round operand 1 to an integer, using the current rounding mode, and
       store the result in operand 0.  Do not raise an inexact condition
!      when the result is different from the argument.  Both operands have
!      mode M, which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'rintM2'
       Round operand 1 to an integer, using the current rounding mode, and
!      store the result in operand 0.  Raise an inexact condition when the
!      result is different from the argument.  Both operands have mode M,
!      which is a scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'lrintMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number according to the current rounding mode
       and store in operand 0 (which has mode N).
  
! 'lroundMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number rounding to nearest and away from zero
       and store in operand 0 (which has mode N).
  
! 'lfloorMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number rounding down and store in operand 0
       (which has mode N).
  
! 'lceilMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
!      mode N as a signed number rounding up and store in operand 0 (which
!      has mode N).
  
! 'copysignM3'
       Store a value with the magnitude of operand 1 and the sign of
       operand 2 into operand 0.  All operands have mode M, which is a
       scalar or vector floating-point mode.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'ffsM2'
       Store into operand 0 one plus the index of the least significant
       1-bit of operand 1.  If operand 1 is zero, store zero.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar integer
!      mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as 'int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'clrsbM2'
!      Count leading redundant sign bits.  Store into operand 0 the number
!      of redundant sign bits in operand 1, starting at the most
       significant bit position.  A redundant sign bit is defined as any
!      sign bit after the first.  As such, this count will be one less
       than the count of leading sign bits.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar integer
!      mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as 'int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'clzM2'
       Store into operand 0 the number of leading 0-bits in operand 1,
       starting at the most significant bit position.  If operand 1 is 0,
!      the 'CLZ_DEFINED_VALUE_AT_ZERO' (*note Misc::) macro defines if the
!      result is undefined or has a useful value.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar integer
!      mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as 'int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'ctzM2'
       Store into operand 0 the number of trailing 0-bits in operand 1,
!      starting at the least significant bit position.  If operand 1 is 0,
!      the 'CTZ_DEFINED_VALUE_AT_ZERO' (*note Misc::) macro defines if the
!      result is undefined or has a useful value.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar integer
!      mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as 'int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'popcountM2'
       Store into operand 0 the number of 1-bits in operand 1.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar integer
!      mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as 'int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'parityM2'
       Store into operand 0 the parity of operand 1, i.e. the number of
       1-bits in operand 1 modulo 2.
  
       M is either a scalar or vector integer mode.  When it is a scalar,
!      operand 1 has mode M but operand 0 can have whatever scalar integer
!      mode is suitable for the target.  The compiler will insert
       conversion instructions as necessary (typically to convert the
!      result to the same width as 'int').  When M is a vector, both
       operands must have mode M.
  
!      This pattern is not allowed to 'FAIL'.
  
! 'one_cmplM2'
       Store the bitwise-complement of operand 1 into operand 0.
  
! 'movmemM'
       Block move instruction.  The destination and source blocks of
!      memory are the first two operands, and both are 'mem:BLK's with an
!      address in mode 'Pmode'.
  
       The number of bytes to move is the third operand, in mode M.
!      Usually, you specify 'Pmode' for M.  However, if you can generate
       better code knowing the range of valid lengths is smaller than
       those representable in a full Pmode pointer, you should provide a
       pattern with a mode corresponding to the range of values you can
!      handle efficiently (e.g., 'QImode' for values in the range 0-127;
!      note we avoid numbers that appear negative) and also a pattern with
!      'Pmode'.
  
       The fourth operand is the known shared alignment of the source and
!      destination, in the form of a 'const_int' rtx.  Thus, if the
       compiler knows that both source and destination are word-aligned,
       it may provide the value 4 for this operand.
  
       Optional operands 5 and 6 specify expected alignment and size of
       block respectively.  The expected alignment differs from alignment
       in operand 4 in a way that the blocks are not required to be
!      aligned according to it in all cases.  This expected alignment is
       also in bytes, just like operand 4.  Expected size, when unknown,
!      is set to '(const_int -1)'.
  
!      Descriptions of multiple 'movmemM' patterns can only be beneficial
       if the patterns for smaller modes have fewer restrictions on their
       first, second and fourth operands.  Note that the mode M in
!      'movmemM' does not impose any restriction on the mode of
       individually moved data units in the block.
  
       These patterns need not give special consideration to the
       possibility that the source and destination strings might overlap.
  
! 'movstr'
!      String copy instruction, with 'stpcpy' semantics.  Operand 0 is an
!      output operand in mode 'Pmode'.  The addresses of the destination
!      and source strings are operands 1 and 2, and both are 'mem:BLK's
!      with addresses in mode 'Pmode'.  The execution of the expansion of
       this pattern should store in operand 0 the address in which the
!      'NUL' terminator was stored in the destination string.
  
       This patern has also several optional operands that are same as in
!      'setmem'.
  
! 'setmemM'
       Block set instruction.  The destination string is the first
!      operand, given as a 'mem:BLK' whose address is in mode 'Pmode'.
       The number of bytes to set is the second operand, in mode M.  The
!      value to initialize the memory with is the third operand.  Targets
       that only support the clearing of memory should reject any value
!      that is not the constant 0.  See 'movmemM' for a discussion of the
       choice of mode.
  
       The fourth operand is the known alignment of the destination, in
!      the form of a 'const_int' rtx.  Thus, if the compiler knows that
       the destination is word-aligned, it may provide the value 4 for
       this operand.
  
       Optional operands 5 and 6 specify expected alignment and size of
       block respectively.  The expected alignment differs from alignment
       in operand 4 in a way that the blocks are not required to be
!      aligned according to it in all cases.  This expected alignment is
       also in bytes, just like operand 4.  Expected size, when unknown,
!      is set to '(const_int -1)'.  Operand 7 is the minimal size of the
       block and operand 8 is the maximal size of the block (NULL if it
!      can not be represented as CONST_INT). Operand 9 is the probable
!      maximal size (i.e.  we can not rely on it for correctness, but it
       can be used for choosing proper code sequence for a given size).
  
!      The use for multiple 'setmemM' is as for 'movmemM'.
  
! 'cmpstrnM'
       String compare instruction, with five operands.  Operand 0 is the
       output; it has mode M.  The remaining four operands are like the
!      operands of 'movmemM'.  The two memory blocks specified are
       compared byte by byte in lexicographic order starting at the
       beginning of each string.  The instruction is not allowed to
       prefetch more than one byte at a time since either string may end
*************** pattern to accomplish a certain task.
*** 24102,24284 ****
       effect of the instruction is to store a value in operand 0 whose
       sign indicates the result of the comparison.
  
! `cmpstrM'
       String compare instruction, without known maximum length.  Operand
       0 is the output; it has mode M.  The second and third operand are
!      the blocks of memory to be compared; both are `mem:BLK' with an
!      address in mode `Pmode'.
  
       The fourth operand is the known shared alignment of the source and
!      destination, in the form of a `const_int' rtx.  Thus, if the
       compiler knows that both source and destination are word-aligned,
       it may provide the value 4 for this operand.
  
       The two memory blocks specified are compared byte by byte in
       lexicographic order starting at the beginning of each string.  The
!      instruction is not allowed to prefetch more than one byte at a
!      time since either string may end in the first byte and reading
!      past that may access an invalid page or segment and cause a fault.
!      The comparison will terminate when the fetched bytes are different
!      or if they are equal to zero.  The effect of the instruction is to
       store a value in operand 0 whose sign indicates the result of the
       comparison.
  
! `cmpmemM'
       Block compare instruction, with five operands like the operands of
!      `cmpstrM'.  The two memory blocks specified are compared byte by
       byte in lexicographic order starting at the beginning of each
!      block.  Unlike `cmpstrM' the instruction can prefetch any bytes in
!      the two memory blocks.  Also unlike `cmpstrM' the comparison will
       not stop if both bytes are zero.  The effect of the instruction is
       to store a value in operand 0 whose sign indicates the result of
       the comparison.
  
! `strlenM'
       Compute the length of a string, with three operands.  Operand 0 is
!      the result (of mode M), operand 1 is a `mem' referring to the
!      first character of the string, operand 2 is the character to
!      search for (normally zero), and operand 3 is a constant describing
!      the known alignment of the beginning of the string.
  
! `floatMN2'
       Convert signed integer operand 1 (valid for fixed point mode M) to
       floating point mode N and store in operand 0 (which has mode N).
  
! `floatunsMN2'
       Convert unsigned integer operand 1 (valid for fixed point mode M)
       to floating point mode N and store in operand 0 (which has mode N).
  
! `fixMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number and store in operand 0 (which has mode
       N).  This instruction's result is defined only when the value of
       operand 1 is an integer.
  
       If the machine description defines this pattern, it also needs to
!      define the `ftrunc' pattern.
  
! `fixunsMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
!      mode N as an unsigned number and store in operand 0 (which has
!      mode N).  This instruction's result is defined only when the value
!      of operand 1 is an integer.
  
! `ftruncM2'
       Convert operand 1 (valid for floating point mode M) to an integer
       value, still represented in floating point mode M, and store it in
       operand 0 (valid for floating point mode M).
  
! `fix_truncMN2'
!      Like `fixMN2' but works for any floating point value of mode M by
       converting the value to an integer.
  
! `fixuns_truncMN2'
!      Like `fixunsMN2' but works for any floating point value of mode M
       by converting the value to an integer.
  
! `truncMN2'
       Truncate operand 1 (valid for mode M) to mode N and store in
       operand 0 (which has mode N).  Both modes must be fixed point or
       both floating point.
  
! `extendMN2'
       Sign-extend operand 1 (valid for mode M) to mode N and store in
       operand 0 (which has mode N).  Both modes must be fixed point or
       both floating point.
  
! `zero_extendMN2'
       Zero-extend operand 1 (valid for mode M) to mode N and store in
       operand 0 (which has mode N).  Both modes must be fixed point.
  
! `fractMN2'
!      Convert operand 1 of mode M to mode N and store in operand 0
!      (which has mode N).  Mode M and mode N could be fixed-point to
       fixed-point, signed integer to fixed-point, fixed-point to signed
       integer, floating-point to fixed-point, or fixed-point to
       floating-point.  When overflows or underflows happen, the results
       are undefined.
  
! `satfractMN2'
!      Convert operand 1 of mode M to mode N and store in operand 0
!      (which has mode N).  Mode M and mode N could be fixed-point to
       fixed-point, signed integer to fixed-point, or floating-point to
       fixed-point.  When overflows or underflows happen, the instruction
       saturates the results to the maximum or the minimum.
  
! `fractunsMN2'
!      Convert operand 1 of mode M to mode N and store in operand 0
!      (which has mode N).  Mode M and mode N could be unsigned integer
!      to fixed-point, or fixed-point to unsigned integer.  When
!      overflows or underflows happen, the results are undefined.
  
! `satfractunsMN2'
       Convert unsigned integer operand 1 of mode M to fixed-point mode N
       and store in operand 0 (which has mode N).  When overflows or
       underflows happen, the instruction saturates the results to the
       maximum or the minimum.
  
! `extvM'
       Extract a bit-field from register operand 1, sign-extend it, and
       store it in operand 0.  Operand 2 specifies the width of the field
       in bits and operand 3 the starting bit, which counts from the most
!      significant bit if `BITS_BIG_ENDIAN' is true and from the least
       significant bit otherwise.
  
       Operands 0 and 1 both have mode M.  Operands 2 and 3 have a
       target-specific mode.
  
! `extvmisalignM'
       Extract a bit-field from memory operand 1, sign extend it, and
       store it in operand 0.  Operand 2 specifies the width in bits and
       operand 3 the starting bit.  The starting bit is always somewhere
!      in the first byte of operand 1; it counts from the most
!      significant bit if `BITS_BIG_ENDIAN' is true and from the least
!      significant bit otherwise.
  
!      Operand 0 has mode M while operand 1 has `BLK' mode.  Operands 2
       and 3 have a target-specific mode.
  
       The instruction must not read beyond the last byte of the
       bit-field.
  
! `extzvM'
!      Like `extvM' except that the bit-field value is zero-extended.
  
! `extzvmisalignM'
!      Like `extvmisalignM' except that the bit-field value is
       zero-extended.
  
! `insvM'
       Insert operand 3 into a bit-field of register operand 0.  Operand 1
!      specifies the width of the field in bits and operand 2 the
!      starting bit, which counts from the most significant bit if
!      `BITS_BIG_ENDIAN' is true and from the least significant bit
       otherwise.
  
       Operands 0 and 3 both have mode M.  Operands 1 and 2 have a
       target-specific mode.
  
! `insvmisalignM'
       Insert operand 3 into a bit-field of memory operand 0.  Operand 1
!      specifies the width of the field in bits and operand 2 the
!      starting bit.  The starting bit is always somewhere in the first
!      byte of operand 0; it counts from the most significant bit if
!      `BITS_BIG_ENDIAN' is true and from the least significant bit
       otherwise.
  
!      Operand 3 has mode M while operand 0 has `BLK' mode.  Operands 1
       and 2 have a target-specific mode.
  
       The instruction must not read or write beyond the last byte of the
       bit-field.
  
! `extv'
       Extract a bit-field from operand 1 (a register or memory operand),
       where operand 2 specifies the width in bits and operand 3 the
       starting bit, and store it in operand 0.  Operand 0 must have mode
!      `word_mode'.  Operand 1 may have mode `byte_mode' or `word_mode';
!      often `word_mode' is allowed only for registers.  Operands 2 and 3
!      must be valid for `word_mode'.
  
       The RTL generation pass generates this instruction only with
       constants for operands 2 and 3 and the constant is never zero for
--- 23729,23911 ----
       effect of the instruction is to store a value in operand 0 whose
       sign indicates the result of the comparison.
  
! 'cmpstrM'
       String compare instruction, without known maximum length.  Operand
       0 is the output; it has mode M.  The second and third operand are
!      the blocks of memory to be compared; both are 'mem:BLK' with an
!      address in mode 'Pmode'.
  
       The fourth operand is the known shared alignment of the source and
!      destination, in the form of a 'const_int' rtx.  Thus, if the
       compiler knows that both source and destination are word-aligned,
       it may provide the value 4 for this operand.
  
       The two memory blocks specified are compared byte by byte in
       lexicographic order starting at the beginning of each string.  The
!      instruction is not allowed to prefetch more than one byte at a time
!      since either string may end in the first byte and reading past that
!      may access an invalid page or segment and cause a fault.  The
!      comparison will terminate when the fetched bytes are different or
!      if they are equal to zero.  The effect of the instruction is to
       store a value in operand 0 whose sign indicates the result of the
       comparison.
  
! 'cmpmemM'
       Block compare instruction, with five operands like the operands of
!      'cmpstrM'.  The two memory blocks specified are compared byte by
       byte in lexicographic order starting at the beginning of each
!      block.  Unlike 'cmpstrM' the instruction can prefetch any bytes in
!      the two memory blocks.  Also unlike 'cmpstrM' the comparison will
       not stop if both bytes are zero.  The effect of the instruction is
       to store a value in operand 0 whose sign indicates the result of
       the comparison.
  
! 'strlenM'
       Compute the length of a string, with three operands.  Operand 0 is
!      the result (of mode M), operand 1 is a 'mem' referring to the first
!      character of the string, operand 2 is the character to search for
!      (normally zero), and operand 3 is a constant describing the known
!      alignment of the beginning of the string.
  
! 'floatMN2'
       Convert signed integer operand 1 (valid for fixed point mode M) to
       floating point mode N and store in operand 0 (which has mode N).
  
! 'floatunsMN2'
       Convert unsigned integer operand 1 (valid for fixed point mode M)
       to floating point mode N and store in operand 0 (which has mode N).
  
! 'fixMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
       mode N as a signed number and store in operand 0 (which has mode
       N).  This instruction's result is defined only when the value of
       operand 1 is an integer.
  
       If the machine description defines this pattern, it also needs to
!      define the 'ftrunc' pattern.
  
! 'fixunsMN2'
       Convert operand 1 (valid for floating point mode M) to fixed point
!      mode N as an unsigned number and store in operand 0 (which has mode
!      N).  This instruction's result is defined only when the value of
!      operand 1 is an integer.
  
! 'ftruncM2'
       Convert operand 1 (valid for floating point mode M) to an integer
       value, still represented in floating point mode M, and store it in
       operand 0 (valid for floating point mode M).
  
! 'fix_truncMN2'
!      Like 'fixMN2' but works for any floating point value of mode M by
       converting the value to an integer.
  
! 'fixuns_truncMN2'
!      Like 'fixunsMN2' but works for any floating point value of mode M
       by converting the value to an integer.
  
! 'truncMN2'
       Truncate operand 1 (valid for mode M) to mode N and store in
       operand 0 (which has mode N).  Both modes must be fixed point or
       both floating point.
  
! 'extendMN2'
       Sign-extend operand 1 (valid for mode M) to mode N and store in
       operand 0 (which has mode N).  Both modes must be fixed point or
       both floating point.
  
! 'zero_extendMN2'
       Zero-extend operand 1 (valid for mode M) to mode N and store in
       operand 0 (which has mode N).  Both modes must be fixed point.
  
! 'fractMN2'
!      Convert operand 1 of mode M to mode N and store in operand 0 (which
!      has mode N).  Mode M and mode N could be fixed-point to
       fixed-point, signed integer to fixed-point, fixed-point to signed
       integer, floating-point to fixed-point, or fixed-point to
       floating-point.  When overflows or underflows happen, the results
       are undefined.
  
! 'satfractMN2'
!      Convert operand 1 of mode M to mode N and store in operand 0 (which
!      has mode N).  Mode M and mode N could be fixed-point to
       fixed-point, signed integer to fixed-point, or floating-point to
       fixed-point.  When overflows or underflows happen, the instruction
       saturates the results to the maximum or the minimum.
  
! 'fractunsMN2'
!      Convert operand 1 of mode M to mode N and store in operand 0 (which
!      has mode N).  Mode M and mode N could be unsigned integer to
!      fixed-point, or fixed-point to unsigned integer.  When overflows or
!      underflows happen, the results are undefined.
  
! 'satfractunsMN2'
       Convert unsigned integer operand 1 of mode M to fixed-point mode N
       and store in operand 0 (which has mode N).  When overflows or
       underflows happen, the instruction saturates the results to the
       maximum or the minimum.
  
! 'extvM'
       Extract a bit-field from register operand 1, sign-extend it, and
       store it in operand 0.  Operand 2 specifies the width of the field
       in bits and operand 3 the starting bit, which counts from the most
!      significant bit if 'BITS_BIG_ENDIAN' is true and from the least
       significant bit otherwise.
  
       Operands 0 and 1 both have mode M.  Operands 2 and 3 have a
       target-specific mode.
  
! 'extvmisalignM'
       Extract a bit-field from memory operand 1, sign extend it, and
       store it in operand 0.  Operand 2 specifies the width in bits and
       operand 3 the starting bit.  The starting bit is always somewhere
!      in the first byte of operand 1; it counts from the most significant
!      bit if 'BITS_BIG_ENDIAN' is true and from the least significant bit
!      otherwise.
  
!      Operand 0 has mode M while operand 1 has 'BLK' mode.  Operands 2
       and 3 have a target-specific mode.
  
       The instruction must not read beyond the last byte of the
       bit-field.
  
! 'extzvM'
!      Like 'extvM' except that the bit-field value is zero-extended.
  
! 'extzvmisalignM'
!      Like 'extvmisalignM' except that the bit-field value is
       zero-extended.
  
! 'insvM'
       Insert operand 3 into a bit-field of register operand 0.  Operand 1
!      specifies the width of the field in bits and operand 2 the starting
!      bit, which counts from the most significant bit if
!      'BITS_BIG_ENDIAN' is true and from the least significant bit
       otherwise.
  
       Operands 0 and 3 both have mode M.  Operands 1 and 2 have a
       target-specific mode.
  
! 'insvmisalignM'
       Insert operand 3 into a bit-field of memory operand 0.  Operand 1
!      specifies the width of the field in bits and operand 2 the starting
!      bit.  The starting bit is always somewhere in the first byte of
!      operand 0; it counts from the most significant bit if
!      'BITS_BIG_ENDIAN' is true and from the least significant bit
       otherwise.
  
!      Operand 3 has mode M while operand 0 has 'BLK' mode.  Operands 1
       and 2 have a target-specific mode.
  
       The instruction must not read or write beyond the last byte of the
       bit-field.
  
! 'extv'
       Extract a bit-field from operand 1 (a register or memory operand),
       where operand 2 specifies the width in bits and operand 3 the
       starting bit, and store it in operand 0.  Operand 0 must have mode
!      'word_mode'.  Operand 1 may have mode 'byte_mode' or 'word_mode';
!      often 'word_mode' is allowed only for registers.  Operands 2 and 3
!      must be valid for 'word_mode'.
  
       The RTL generation pass generates this instruction only with
       constants for operands 2 and 3 and the constant is never zero for
*************** pattern to accomplish a certain task.
*** 24287,24403 ****
       The bit-field value is sign-extended to a full word integer before
       it is stored in operand 0.
  
!      This pattern is deprecated; please use `extvM' and `extvmisalignM'
       instead.
  
! `extzv'
!      Like `extv' except that the bit-field value is zero-extended.
  
!      This pattern is deprecated; please use `extzvM' and
!      `extzvmisalignM' instead.
  
! `insv'
!      Store operand 3 (which must be valid for `word_mode') into a
!      bit-field in operand 0, where operand 1 specifies the width in
!      bits and operand 2 the starting bit.  Operand 0 may have mode
!      `byte_mode' or `word_mode'; often `word_mode' is allowed only for
!      registers.  Operands 1 and 2 must be valid for `word_mode'.
  
       The RTL generation pass generates this instruction only with
       constants for operands 1 and 2 and the constant is never zero for
       operand 1.
  
!      This pattern is deprecated; please use `insvM' and `insvmisalignM'
       instead.
  
! `movMODEcc'
       Conditionally move operand 2 or operand 3 into operand 0 according
!      to the comparison in operand 1.  If the comparison is true,
!      operand 2 is moved into operand 0, otherwise operand 3 is moved.
  
!      The mode of the operands being compared need not be the same as
!      the operands being moved.  Some machines, sparc64 for example,
!      have instructions that conditionally move an integer value based
!      on the floating point condition codes and vice versa.
  
       If the machine does not have conditional move instructions, do not
       define these patterns.
  
! `addMODEcc'
!      Similar to `movMODEcc' but for conditional addition.  Conditionally
!      move operand 2 or (operands 2 + operand 3) into operand 0
!      according to the comparison in operand 1.  If the comparison is
!      false, operand 2 is moved into operand 0, otherwise (operand 2 +
!      operand 3) is moved.
  
! `negMODEcc'
!      Similar to `movMODEcc' but for conditional negation.  Conditionally
       move the negation of operand 2 or the unchanged operand 3 into
       operand 0 according to the comparison in operand 1.  If the
!      comparison is true, the negation of operand 2 is moved into
!      operand 0, otherwise operand 3 is moved.
  
! `notMODEcc'
!      Similar to `negMODEcc' but for conditional complement.
       Conditionally move the bitwise complement of operand 2 or the
       unchanged operand 3 into operand 0 according to the comparison in
       operand 1.  If the comparison is true, the complement of operand 2
       is moved into operand 0, otherwise operand 3 is moved.
  
! `cstoreMODE4'
       Store zero or nonzero in operand 0 according to whether a
!      comparison is true.  Operand 1 is a comparison operator.  Operand
!      2 and operand 3 are the first and second operand of the
!      comparison, respectively.  You specify the mode that operand 0
!      must have when you write the `match_operand' expression.  The
!      compiler automatically sees which mode you have used and supplies
!      an operand of that mode.
  
       The value stored for a true condition must have 1 as its low bit,
       or else must be negative.  Otherwise the instruction is not
       suitable and you should omit it from the machine description.  You
       describe to the compiler exactly which value is stored by defining
!      the macro `STORE_FLAG_VALUE' (*note Misc::).  If a description
       cannot be found that can be used for all the possible comparison
!      operators, you should pick one and use a `define_expand' to map
!      all results onto the one you chose.
  
!      These operations may `FAIL', but should do so only in relatively
!      uncommon cases; if they would `FAIL' for common cases involving
       integer comparisons, it is best to restrict the predicates to not
       allow these operands.  Likewise if a given comparison operator will
!      always fail, independent of the operands (for floating-point
!      modes, the `ordered_comparison_operator' predicate is often useful
!      in this case).
  
       If this pattern is omitted, the compiler will generate a
       conditional branch--for example, it may copy a constant one to the
!      target and branching around an assignment of zero to the
!      target--or a libcall.  If the predicate for operand 1 only rejects
!      some operators, it will also try reordering the operands and/or
!      inverting the result value (e.g. by an exclusive OR).  These
       possibilities could be cheaper or equivalent to the instructions
!      used for the `cstoreMODE4' pattern followed by those required to
!      convert a positive result from `STORE_FLAG_VALUE' to 1; in this
       case, you can and should make operand 1's predicate reject some
!      operators in the `cstoreMODE4' pattern, or remove the pattern
       altogether from the machine description.
  
! `cbranchMODE4'
       Conditional branch instruction combined with a compare instruction.
       Operand 0 is a comparison operator.  Operand 1 and operand 2 are
       the first and second operands of the comparison, respectively.
!      Operand 3 is the `code_label' to jump to.
  
! `jump'
       A jump inside a function; an unconditional branch.  Operand 0 is
!      the `code_label' to jump to.  This pattern name is mandatory on all
       machines.
  
! `call'
       Subroutine call instruction returning no value.  Operand 0 is the
       function to call; operand 1 is the number of bytes of arguments
!      pushed as a `const_int'; operand 2 is the number of registers used
       as operands.
  
       On most machines, operand 2 is not actually stored into the RTL
--- 23914,24030 ----
       The bit-field value is sign-extended to a full word integer before
       it is stored in operand 0.
  
!      This pattern is deprecated; please use 'extvM' and 'extvmisalignM'
       instead.
  
! 'extzv'
!      Like 'extv' except that the bit-field value is zero-extended.
  
!      This pattern is deprecated; please use 'extzvM' and
!      'extzvmisalignM' instead.
  
! 'insv'
!      Store operand 3 (which must be valid for 'word_mode') into a
!      bit-field in operand 0, where operand 1 specifies the width in bits
!      and operand 2 the starting bit.  Operand 0 may have mode
!      'byte_mode' or 'word_mode'; often 'word_mode' is allowed only for
!      registers.  Operands 1 and 2 must be valid for 'word_mode'.
  
       The RTL generation pass generates this instruction only with
       constants for operands 1 and 2 and the constant is never zero for
       operand 1.
  
!      This pattern is deprecated; please use 'insvM' and 'insvmisalignM'
       instead.
  
! 'movMODEcc'
       Conditionally move operand 2 or operand 3 into operand 0 according
!      to the comparison in operand 1.  If the comparison is true, operand
!      2 is moved into operand 0, otherwise operand 3 is moved.
  
!      The mode of the operands being compared need not be the same as the
!      operands being moved.  Some machines, sparc64 for example, have
!      instructions that conditionally move an integer value based on the
!      floating point condition codes and vice versa.
  
       If the machine does not have conditional move instructions, do not
       define these patterns.
  
! 'addMODEcc'
!      Similar to 'movMODEcc' but for conditional addition.  Conditionally
!      move operand 2 or (operands 2 + operand 3) into operand 0 according
!      to the comparison in operand 1.  If the comparison is false,
!      operand 2 is moved into operand 0, otherwise (operand 2 + operand
!      3) is moved.
  
! 'negMODEcc'
!      Similar to 'movMODEcc' but for conditional negation.  Conditionally
       move the negation of operand 2 or the unchanged operand 3 into
       operand 0 according to the comparison in operand 1.  If the
!      comparison is true, the negation of operand 2 is moved into operand
!      0, otherwise operand 3 is moved.
  
! 'notMODEcc'
!      Similar to 'negMODEcc' but for conditional complement.
       Conditionally move the bitwise complement of operand 2 or the
       unchanged operand 3 into operand 0 according to the comparison in
       operand 1.  If the comparison is true, the complement of operand 2
       is moved into operand 0, otherwise operand 3 is moved.
  
! 'cstoreMODE4'
       Store zero or nonzero in operand 0 according to whether a
!      comparison is true.  Operand 1 is a comparison operator.  Operand 2
!      and operand 3 are the first and second operand of the comparison,
!      respectively.  You specify the mode that operand 0 must have when
!      you write the 'match_operand' expression.  The compiler
!      automatically sees which mode you have used and supplies an operand
!      of that mode.
  
       The value stored for a true condition must have 1 as its low bit,
       or else must be negative.  Otherwise the instruction is not
       suitable and you should omit it from the machine description.  You
       describe to the compiler exactly which value is stored by defining
!      the macro 'STORE_FLAG_VALUE' (*note Misc::).  If a description
       cannot be found that can be used for all the possible comparison
!      operators, you should pick one and use a 'define_expand' to map all
!      results onto the one you chose.
  
!      These operations may 'FAIL', but should do so only in relatively
!      uncommon cases; if they would 'FAIL' for common cases involving
       integer comparisons, it is best to restrict the predicates to not
       allow these operands.  Likewise if a given comparison operator will
!      always fail, independent of the operands (for floating-point modes,
!      the 'ordered_comparison_operator' predicate is often useful in this
!      case).
  
       If this pattern is omitted, the compiler will generate a
       conditional branch--for example, it may copy a constant one to the
!      target and branching around an assignment of zero to the target--or
!      a libcall.  If the predicate for operand 1 only rejects some
!      operators, it will also try reordering the operands and/or
!      inverting the result value (e.g. by an exclusive OR). These
       possibilities could be cheaper or equivalent to the instructions
!      used for the 'cstoreMODE4' pattern followed by those required to
!      convert a positive result from 'STORE_FLAG_VALUE' to 1; in this
       case, you can and should make operand 1's predicate reject some
!      operators in the 'cstoreMODE4' pattern, or remove the pattern
       altogether from the machine description.
  
! 'cbranchMODE4'
       Conditional branch instruction combined with a compare instruction.
       Operand 0 is a comparison operator.  Operand 1 and operand 2 are
       the first and second operands of the comparison, respectively.
!      Operand 3 is the 'code_label' to jump to.
  
! 'jump'
       A jump inside a function; an unconditional branch.  Operand 0 is
!      the 'code_label' to jump to.  This pattern name is mandatory on all
       machines.
  
! 'call'
       Subroutine call instruction returning no value.  Operand 0 is the
       function to call; operand 1 is the number of bytes of arguments
!      pushed as a 'const_int'; operand 2 is the number of registers used
       as operands.
  
       On most machines, operand 2 is not actually stored into the RTL
*************** pattern to accomplish a certain task.
*** 24405,24483 ****
       need to put this information into the assembler code; they can put
       it in the RTL instead of operand 1.
  
!      Operand 0 should be a `mem' RTX whose address is the address of the
!      function.  Note, however, that this address can be a `symbol_ref'
       expression even if it would not be a legitimate memory address on
       the target machine.  If it is also not a valid argument for a call
       instruction, the pattern for this operation should be a
!      `define_expand' (*note Expander Definitions::) that places the
       address into a register and uses that register in the call
       instruction.
  
! `call_value'
       Subroutine call instruction returning a value.  Operand 0 is the
       hard register in which the value is returned.  There are three more
!      operands, the same as the three operands of the `call' instruction
       (but with numbers increased by one).
  
!      Subroutines that return `BLKmode' objects use the `call' insn.
  
! `call_pop', `call_value_pop'
!      Similar to `call' and `call_value', except used if defined and if
!      `RETURN_POPS_ARGS' is nonzero.  They should emit a `parallel' that
!      contains both the function call and a `set' to indicate the
       adjustment made to the frame pointer.
  
!      For machines where `RETURN_POPS_ARGS' can be nonzero, the use of
       these patterns increases the number of functions for which the
       frame pointer can be eliminated, if desired.
  
! `untyped_call'
!      Subroutine call instruction returning a value of any type.
!      Operand 0 is the function to call; operand 1 is a memory location
!      where the result of calling the function is to be stored; operand
!      2 is a `parallel' expression where each element is a `set'
!      expression that indicates the saving of a function return value
!      into the result block.
  
       This instruction pattern should be defined to support
!      `__builtin_apply' on machines where special instructions are needed
       to call a subroutine with arbitrary arguments or to save the value
       returned.  This instruction pattern is required on machines that
       have multiple registers that can hold a return value (i.e.
!      `FUNCTION_VALUE_REGNO_P' is true for more than one register).
  
! `return'
       Subroutine return instruction.  This instruction pattern name
       should be defined only if a single instruction can do all the work
       of returning from a function.
  
!      Like the `movM' patterns, this pattern is also used after the RTL
       generation phase.  In this case it is to support machines where
!      multiple instructions are usually needed to return from a
!      function, but some class of functions only requires one
!      instruction to implement a return.  Normally, the applicable
!      functions are those which do not need to save any registers or
!      allocate stack space.
  
       It is valid for this pattern to expand to an instruction using
!      `simple_return' if no epilogue is required.
  
! `simple_return'
       Subroutine return instruction.  This instruction pattern name
       should be defined only if a single instruction can do all the work
       of returning from a function on a path where no epilogue is
!      required.  This pattern is very similar to the `return'
!      instruction pattern, but it is emitted only by the shrink-wrapping
!      optimization on paths where the function prologue has not been
!      executed, and a function return should occur without any of the
!      effects of the epilogue.  Additional uses may be introduced on
!      paths where both the prologue and the epilogue have executed.
  
       For such machines, the condition specified in this pattern should
!      only be true when `reload_completed' is nonzero and the function's
       epilogue would only be a single instruction.  For machines with
!      register windows, the routine `leaf_function_p' may be used to
       determine if a register window push is required.
  
       Machines that have conditional return instructions should define
--- 24032,24109 ----
       need to put this information into the assembler code; they can put
       it in the RTL instead of operand 1.
  
!      Operand 0 should be a 'mem' RTX whose address is the address of the
!      function.  Note, however, that this address can be a 'symbol_ref'
       expression even if it would not be a legitimate memory address on
       the target machine.  If it is also not a valid argument for a call
       instruction, the pattern for this operation should be a
!      'define_expand' (*note Expander Definitions::) that places the
       address into a register and uses that register in the call
       instruction.
  
! 'call_value'
       Subroutine call instruction returning a value.  Operand 0 is the
       hard register in which the value is returned.  There are three more
!      operands, the same as the three operands of the 'call' instruction
       (but with numbers increased by one).
  
!      Subroutines that return 'BLKmode' objects use the 'call' insn.
  
! 'call_pop', 'call_value_pop'
!      Similar to 'call' and 'call_value', except used if defined and if
!      'RETURN_POPS_ARGS' is nonzero.  They should emit a 'parallel' that
!      contains both the function call and a 'set' to indicate the
       adjustment made to the frame pointer.
  
!      For machines where 'RETURN_POPS_ARGS' can be nonzero, the use of
       these patterns increases the number of functions for which the
       frame pointer can be eliminated, if desired.
  
! 'untyped_call'
!      Subroutine call instruction returning a value of any type.  Operand
!      0 is the function to call; operand 1 is a memory location where the
!      result of calling the function is to be stored; operand 2 is a
!      'parallel' expression where each element is a 'set' expression that
!      indicates the saving of a function return value into the result
!      block.
  
       This instruction pattern should be defined to support
!      '__builtin_apply' on machines where special instructions are needed
       to call a subroutine with arbitrary arguments or to save the value
       returned.  This instruction pattern is required on machines that
       have multiple registers that can hold a return value (i.e.
!      'FUNCTION_VALUE_REGNO_P' is true for more than one register).
  
! 'return'
       Subroutine return instruction.  This instruction pattern name
       should be defined only if a single instruction can do all the work
       of returning from a function.
  
!      Like the 'movM' patterns, this pattern is also used after the RTL
       generation phase.  In this case it is to support machines where
!      multiple instructions are usually needed to return from a function,
!      but some class of functions only requires one instruction to
!      implement a return.  Normally, the applicable functions are those
!      which do not need to save any registers or allocate stack space.
  
       It is valid for this pattern to expand to an instruction using
!      'simple_return' if no epilogue is required.
  
! 'simple_return'
       Subroutine return instruction.  This instruction pattern name
       should be defined only if a single instruction can do all the work
       of returning from a function on a path where no epilogue is
!      required.  This pattern is very similar to the 'return' instruction
!      pattern, but it is emitted only by the shrink-wrapping optimization
!      on paths where the function prologue has not been executed, and a
!      function return should occur without any of the effects of the
!      epilogue.  Additional uses may be introduced on paths where both
!      the prologue and the epilogue have executed.
  
       For such machines, the condition specified in this pattern should
!      only be true when 'reload_completed' is nonzero and the function's
       epilogue would only be a single instruction.  For machines with
!      register windows, the routine 'leaf_function_p' may be used to
       determine if a register window push is required.
  
       Machines that have conditional return instructions should define
*************** pattern to accomplish a certain task.
*** 24494,24526 ****
              "...")
  
       where CONDITION would normally be the same condition specified on
!      the named `return' pattern.
  
! `untyped_return'
       Untyped subroutine return instruction.  This instruction pattern
!      should be defined to support `__builtin_return' on machines where
       special instructions are needed to return a value of any type.
  
       Operand 0 is a memory location where the result of calling a
!      function with `__builtin_apply' is stored; operand 1 is a
!      `parallel' expression where each element is a `set' expression
!      that indicates the restoring of a function return value from the
!      result block.
  
! `nop'
       No-op instruction.  This instruction pattern name should always be
!      defined to output a no-op in assembler code.  `(const_int 0)' will
       do as an RTL pattern.
  
! `indirect_jump'
       An instruction to jump to an address which is operand zero.  This
       pattern name is mandatory on all machines.
  
! `casesi'
       Instruction to jump through a dispatch table, including bounds
       checking.  This instruction takes five operands:
  
!        1. The index to dispatch on, which has mode `SImode'.
  
         2. The lower bound for indices in the table, an integer constant.
  
--- 24120,24152 ----
              "...")
  
       where CONDITION would normally be the same condition specified on
!      the named 'return' pattern.
  
! 'untyped_return'
       Untyped subroutine return instruction.  This instruction pattern
!      should be defined to support '__builtin_return' on machines where
       special instructions are needed to return a value of any type.
  
       Operand 0 is a memory location where the result of calling a
!      function with '__builtin_apply' is stored; operand 1 is a
!      'parallel' expression where each element is a 'set' expression that
!      indicates the restoring of a function return value from the result
!      block.
  
! 'nop'
       No-op instruction.  This instruction pattern name should always be
!      defined to output a no-op in assembler code.  '(const_int 0)' will
       do as an RTL pattern.
  
! 'indirect_jump'
       An instruction to jump to an address which is operand zero.  This
       pattern name is mandatory on all machines.
  
! 'casesi'
       Instruction to jump through a dispatch table, including bounds
       checking.  This instruction takes five operands:
  
!        1. The index to dispatch on, which has mode 'SImode'.
  
         2. The lower bound for indices in the table, an integer constant.
  
*************** pattern to accomplish a certain task.
*** 24532,24597 ****
         5. A label to jump to if the index has a value outside the
            bounds.
  
!      The table is an `addr_vec' or `addr_diff_vec' inside of a
!      `jump_table_data'.  The number of elements in the table is one
!      plus the difference between the upper bound and the lower bound.
  
! `tablejump'
       Instruction to jump to a variable address.  This is a low-level
       capability which can be used to implement a dispatch table when
!      there is no `casesi' pattern.
  
       This pattern requires two operands: the address or offset, and a
       label which should immediately precede the jump table.  If the
!      macro `CASE_VECTOR_PC_RELATIVE' evaluates to a nonzero value then
!      the first operand is an offset which counts from the address of
!      the table; otherwise, it is an absolute address to jump to.  In
!      either case, the first operand has mode `Pmode'.
  
!      The `tablejump' insn is always the last insn before the jump table
!      it uses.  Its assembler code normally has no need to use the
!      second operand, but you should incorporate it in the RTL pattern so
!      that the jump optimizer will not delete the table as unreachable
!      code.
  
! `decrement_and_branch_until_zero'
!      Conditional branch instruction that decrements a register and
!      jumps if the register is nonzero.  Operand 0 is the register to
!      decrement and test; operand 1 is the label to jump to if the
!      register is nonzero.  *Note Looping Patterns::.
  
       This optional instruction pattern is only used by the combiner,
       typically for loops reversed by the loop optimizer when strength
       reduction is enabled.
  
! `doloop_end'
!      Conditional branch instruction that decrements a register and
!      jumps if the register is nonzero.  Operand 0 is the register to
!      decrement and test; operand 1 is the label to jump to if the
!      register is nonzero.  *Note Looping Patterns::.
  
       This optional instruction pattern should be defined for machines
       with low-overhead looping instructions as the loop optimizer will
       try to modify suitable loops to utilize it.  The target hook
!      `TARGET_CAN_USE_DOLOOP_P' controls the conditions under which
       low-overhead loops can be used.
  
! `doloop_begin'
!      Companion instruction to `doloop_end' required for machines that
       need to perform some initialization, such as loading a special
!      counter register.  Operand 1 is the associated `doloop_end'
!      pattern and operand 0 is the register that it decrements.
  
       If initialization insns do not always need to be emitted, use a
!      `define_expand' (*note Expander Definitions::) and make it fail.
  
! `canonicalize_funcptr_for_compare'
       Canonicalize the function pointer in operand 1 and store the result
       into operand 0.
  
!      Operand 0 is always a `reg' and has mode `Pmode'; operand 1 may be
!      a `reg', `mem', `symbol_ref', `const_int', etc and also has mode
!      `Pmode'.
  
       Canonicalization of a function pointer usually involves computing
       the address of the function which would be called if the function
--- 24158,24222 ----
         5. A label to jump to if the index has a value outside the
            bounds.
  
!      The table is an 'addr_vec' or 'addr_diff_vec' inside of a
!      'jump_table_data'.  The number of elements in the table is one plus
!      the difference between the upper bound and the lower bound.
  
! 'tablejump'
       Instruction to jump to a variable address.  This is a low-level
       capability which can be used to implement a dispatch table when
!      there is no 'casesi' pattern.
  
       This pattern requires two operands: the address or offset, and a
       label which should immediately precede the jump table.  If the
!      macro 'CASE_VECTOR_PC_RELATIVE' evaluates to a nonzero value then
!      the first operand is an offset which counts from the address of the
!      table; otherwise, it is an absolute address to jump to.  In either
!      case, the first operand has mode 'Pmode'.
  
!      The 'tablejump' insn is always the last insn before the jump table
!      it uses.  Its assembler code normally has no need to use the second
!      operand, but you should incorporate it in the RTL pattern so that
!      the jump optimizer will not delete the table as unreachable code.
  
! 'decrement_and_branch_until_zero'
!      Conditional branch instruction that decrements a register and jumps
!      if the register is nonzero.  Operand 0 is the register to decrement
!      and test; operand 1 is the label to jump to if the register is
!      nonzero.  *Note Looping Patterns::.
  
       This optional instruction pattern is only used by the combiner,
       typically for loops reversed by the loop optimizer when strength
       reduction is enabled.
  
! 'doloop_end'
!      Conditional branch instruction that decrements a register and jumps
!      if the register is nonzero.  Operand 0 is the register to decrement
!      and test; operand 1 is the label to jump to if the register is
!      nonzero.  *Note Looping Patterns::.
  
       This optional instruction pattern should be defined for machines
       with low-overhead looping instructions as the loop optimizer will
       try to modify suitable loops to utilize it.  The target hook
!      'TARGET_CAN_USE_DOLOOP_P' controls the conditions under which
       low-overhead loops can be used.
  
! 'doloop_begin'
!      Companion instruction to 'doloop_end' required for machines that
       need to perform some initialization, such as loading a special
!      counter register.  Operand 1 is the associated 'doloop_end' pattern
!      and operand 0 is the register that it decrements.
  
       If initialization insns do not always need to be emitted, use a
!      'define_expand' (*note Expander Definitions::) and make it fail.
  
! 'canonicalize_funcptr_for_compare'
       Canonicalize the function pointer in operand 1 and store the result
       into operand 0.
  
!      Operand 0 is always a 'reg' and has mode 'Pmode'; operand 1 may be
!      a 'reg', 'mem', 'symbol_ref', 'const_int', etc and also has mode
!      'Pmode'.
  
       Canonicalization of a function pointer usually involves computing
       the address of the function which would be called if the function
*************** pattern to accomplish a certain task.
*** 24601,24638 ****
       can have different values but still call the same function when
       used in an indirect call.
  
! `save_stack_block'
! `save_stack_function'
! `save_stack_nonlocal'
! `restore_stack_block'
! `restore_stack_function'
! `restore_stack_nonlocal'
       Most machines save and restore the stack pointer by copying it to
!      or from an object of mode `Pmode'.  Do not define these patterns on
       such machines.
  
       Some machines require special handling for stack pointer saves and
       restores.  On those machines, define the patterns corresponding to
!      the non-standard cases by using a `define_expand' (*note Expander
       Definitions::) that produces the required insns.  The three types
       of saves and restores are:
  
!        1. `save_stack_block' saves the stack pointer at the start of a
            block that allocates a variable-sized object, and
!           `restore_stack_block' restores the stack pointer when the
            block is exited.
  
!        2. `save_stack_function' and `restore_stack_function' do a
!           similar job for the outermost block of a function and are
!           used when the function allocates variable-sized objects or
!           calls `alloca'.  Only the epilogue uses the restored stack
!           pointer, allowing a simpler save or restore sequence on some
!           machines.
  
!        3. `save_stack_nonlocal' is used in functions that contain labels
            branched to by nested functions.  It saves the stack pointer
            in such a way that the inner function can use
!           `restore_stack_nonlocal' to restore the stack pointer.  The
            compiler generates code to restore the frame and argument
            pointer registers, but some machines require saving and
            restoring additional data such as register window information
--- 24226,24262 ----
       can have different values but still call the same function when
       used in an indirect call.
  
! 'save_stack_block'
! 'save_stack_function'
! 'save_stack_nonlocal'
! 'restore_stack_block'
! 'restore_stack_function'
! 'restore_stack_nonlocal'
       Most machines save and restore the stack pointer by copying it to
!      or from an object of mode 'Pmode'.  Do not define these patterns on
       such machines.
  
       Some machines require special handling for stack pointer saves and
       restores.  On those machines, define the patterns corresponding to
!      the non-standard cases by using a 'define_expand' (*note Expander
       Definitions::) that produces the required insns.  The three types
       of saves and restores are:
  
!        1. 'save_stack_block' saves the stack pointer at the start of a
            block that allocates a variable-sized object, and
!           'restore_stack_block' restores the stack pointer when the
            block is exited.
  
!        2. 'save_stack_function' and 'restore_stack_function' do a
!           similar job for the outermost block of a function and are used
!           when the function allocates variable-sized objects or calls
!           'alloca'.  Only the epilogue uses the restored stack pointer,
!           allowing a simpler save or restore sequence on some machines.
  
!        3. 'save_stack_nonlocal' is used in functions that contain labels
            branched to by nested functions.  It saves the stack pointer
            in such a way that the inner function can use
!           'restore_stack_nonlocal' to restore the stack pointer.  The
            compiler generates code to restore the frame and argument
            pointer registers, but some machines require saving and
            restoring additional data such as register window information
*************** pattern to accomplish a certain task.
*** 24640,24668 ****
            and restore any such required data.
  
       When saving the stack pointer, operand 0 is the save area and
!      operand 1 is the stack pointer.  The mode used to allocate the
!      save area defaults to `Pmode' but you can override that choice by
!      defining the `STACK_SAVEAREA_MODE' macro (*note Storage Layout::).
!      You must specify an integral mode, or `VOIDmode' if no save area
!      is needed for a particular type of save (either because no save is
       needed or because a machine-specific save area can be used).
       Operand 0 is the stack pointer and operand 1 is the save area for
!      restore operations.  If `save_stack_block' is defined, operand 0
!      must not be `VOIDmode' since these saves can be arbitrarily nested.
  
!      A save area is a `mem' that is at a constant offset from
!      `virtual_stack_vars_rtx' when the stack pointer is saved for use by
!      nonlocal gotos and a `reg' in the other two cases.
  
! `allocate_stack'
!      Subtract (or add if `STACK_GROWS_DOWNWARD' is undefined) operand 1
       from the stack pointer to create space for dynamically allocated
       data.
  
       Store the resultant pointer to this space into operand 0.  If you
       are allocating space from the main stack, do this by emitting a
!      move insn to copy `virtual_stack_dynamic_rtx' to operand 0.  If
!      you are allocating the space elsewhere, generate code to copy the
       location of the space to operand 0.  In the latter case, you must
       ensure this space gets freed when the corresponding space on the
       main stack is free.
--- 24264,24292 ----
            and restore any such required data.
  
       When saving the stack pointer, operand 0 is the save area and
!      operand 1 is the stack pointer.  The mode used to allocate the save
!      area defaults to 'Pmode' but you can override that choice by
!      defining the 'STACK_SAVEAREA_MODE' macro (*note Storage Layout::).
!      You must specify an integral mode, or 'VOIDmode' if no save area is
!      needed for a particular type of save (either because no save is
       needed or because a machine-specific save area can be used).
       Operand 0 is the stack pointer and operand 1 is the save area for
!      restore operations.  If 'save_stack_block' is defined, operand 0
!      must not be 'VOIDmode' since these saves can be arbitrarily nested.
  
!      A save area is a 'mem' that is at a constant offset from
!      'virtual_stack_vars_rtx' when the stack pointer is saved for use by
!      nonlocal gotos and a 'reg' in the other two cases.
  
! 'allocate_stack'
!      Subtract (or add if 'STACK_GROWS_DOWNWARD' is undefined) operand 1
       from the stack pointer to create space for dynamically allocated
       data.
  
       Store the resultant pointer to this space into operand 0.  If you
       are allocating space from the main stack, do this by emitting a
!      move insn to copy 'virtual_stack_dynamic_rtx' to operand 0.  If you
!      are allocating the space elsewhere, generate code to copy the
       location of the space to operand 0.  In the latter case, you must
       ensure this space gets freed when the corresponding space on the
       main stack is free.
*************** pattern to accomplish a certain task.
*** 24672,24678 ****
       probes or maintaining the back chain.  Define this pattern to emit
       those operations in addition to updating the stack pointer.
  
! `check_stack'
       If stack checking (*note Stack Checking::) cannot be done on your
       system by probing the stack, define this pattern to perform the
       needed check and signal an error if the stack has overflowed.  The
--- 24296,24302 ----
       probes or maintaining the back chain.  Define this pattern to emit
       those operations in addition to updating the stack pointer.
  
! 'check_stack'
       If stack checking (*note Stack Checking::) cannot be done on your
       system by probing the stack, define this pattern to perform the
       needed check and signal an error if the stack has overflowed.  The
*************** pattern to accomplish a certain task.
*** 24681,24694 ****
       platforms where this pattern is needed, you would obtain the stack
       limit from a global or thread-specific variable or register.
  
! `probe_stack_address'
       If stack checking (*note Stack Checking::) can be done on your
!      system by probing the stack but without the need to actually
!      access it, define this pattern and signal an error if the stack
!      has overflowed.  The single operand is the memory address in the
!      stack that needs to be probed.
  
! `probe_stack'
       If stack checking (*note Stack Checking::) can be done on your
       system by probing the stack but doing it with a "store zero"
       instruction is not valid or optimal, define this pattern to do the
--- 24305,24318 ----
       platforms where this pattern is needed, you would obtain the stack
       limit from a global or thread-specific variable or register.
  
! 'probe_stack_address'
       If stack checking (*note Stack Checking::) can be done on your
!      system by probing the stack but without the need to actually access
!      it, define this pattern and signal an error if the stack has
!      overflowed.  The single operand is the memory address in the stack
!      that needs to be probed.
  
! 'probe_stack'
       If stack checking (*note Stack Checking::) can be done on your
       system by probing the stack but doing it with a "store zero"
       instruction is not valid or optimal, define this pattern to do the
*************** pattern to accomplish a certain task.
*** 24696,24702 ****
       overflowed.  The single operand is the memory reference in the
       stack that needs to be probed.
  
! `nonlocal_goto'
       Emit code to generate a non-local goto, e.g., a jump from one
       function to a label in an outer function.  This pattern has four
       arguments, each representing a value to be used in the jump.  The
--- 24320,24326 ----
       overflowed.  The single operand is the memory reference in the
       stack that needs to be probed.
  
! 'nonlocal_goto'
       Emit code to generate a non-local goto, e.g., a jump from one
       function to a label in an outer function.  This pattern has four
       arguments, each representing a value to be used in the jump.  The
*************** pattern to accomplish a certain task.
*** 24709,24750 ****
       On most machines you need not define this pattern, since GCC will
       already generate the correct code, which is to load the frame
       pointer and static chain, restore the stack (using the
!      `restore_stack_nonlocal' pattern, if defined), and jump indirectly
       to the dispatcher.  You need only define this pattern if this code
       will not work on your machine.
  
! `nonlocal_goto_receiver'
       This pattern, if defined, contains code needed at the target of a
       nonlocal goto after the code already generated by GCC.  You will
!      not normally need to define this pattern.  A typical reason why
!      you might need this pattern is if some value, such as a pointer to
!      a global table, must be restored when the frame pointer is
!      restored.  Note that a nonlocal goto only occurs within a
!      unit-of-translation, so a global table pointer that is shared by
!      all functions of a given module need not be restored.  There are
!      no arguments.
  
! `exception_receiver'
       This pattern, if defined, contains code needed at the site of an
!      exception handler that isn't needed at the site of a nonlocal
!      goto.  You will not normally need to define this pattern.  A
!      typical reason why you might need this pattern is if some value,
!      such as a pointer to a global table, must be restored after
!      control flow is branched to the handler of an exception.  There
!      are no arguments.
  
! `builtin_setjmp_setup'
       This pattern, if defined, contains additional code needed to
!      initialize the `jmp_buf'.  You will not normally need to define
       this pattern.  A typical reason why you might need this pattern is
       if some value, such as a pointer to a global table, must be
       restored.  Though it is preferred that the pointer value be
       recalculated if possible (given the address of a label for
!      instance).  The single argument is a pointer to the `jmp_buf'.
       Note that the buffer is five words long and that the first three
       are normally used by the generic mechanism.
  
! `builtin_setjmp_receiver'
       This pattern, if defined, contains code needed at the site of a
       built-in setjmp that isn't needed at the site of a nonlocal goto.
       You will not normally need to define this pattern.  A typical
--- 24333,24372 ----
       On most machines you need not define this pattern, since GCC will
       already generate the correct code, which is to load the frame
       pointer and static chain, restore the stack (using the
!      'restore_stack_nonlocal' pattern, if defined), and jump indirectly
       to the dispatcher.  You need only define this pattern if this code
       will not work on your machine.
  
! 'nonlocal_goto_receiver'
       This pattern, if defined, contains code needed at the target of a
       nonlocal goto after the code already generated by GCC.  You will
!      not normally need to define this pattern.  A typical reason why you
!      might need this pattern is if some value, such as a pointer to a
!      global table, must be restored when the frame pointer is restored.
!      Note that a nonlocal goto only occurs within a unit-of-translation,
!      so a global table pointer that is shared by all functions of a
!      given module need not be restored.  There are no arguments.
  
! 'exception_receiver'
       This pattern, if defined, contains code needed at the site of an
!      exception handler that isn't needed at the site of a nonlocal goto.
!      You will not normally need to define this pattern.  A typical
!      reason why you might need this pattern is if some value, such as a
!      pointer to a global table, must be restored after control flow is
!      branched to the handler of an exception.  There are no arguments.
  
! 'builtin_setjmp_setup'
       This pattern, if defined, contains additional code needed to
!      initialize the 'jmp_buf'.  You will not normally need to define
       this pattern.  A typical reason why you might need this pattern is
       if some value, such as a pointer to a global table, must be
       restored.  Though it is preferred that the pointer value be
       recalculated if possible (given the address of a label for
!      instance).  The single argument is a pointer to the 'jmp_buf'.
       Note that the buffer is five words long and that the first three
       are normally used by the generic mechanism.
  
! 'builtin_setjmp_receiver'
       This pattern, if defined, contains code needed at the site of a
       built-in setjmp that isn't needed at the site of a nonlocal goto.
       You will not normally need to define this pattern.  A typical
*************** pattern to accomplish a certain task.
*** 24754,24837 ****
       control; this pattern may be emitted at a small offset from that
       label.
  
! `builtin_longjmp'
       This pattern, if defined, performs the entire action of the
       longjmp.  You will not normally need to define this pattern unless
!      you also define `builtin_setjmp_setup'.  The single argument is a
!      pointer to the `jmp_buf'.
  
! `eh_return'
!      This pattern, if defined, affects the way `__builtin_eh_return',
       and thence the call frame exception handling library routines, are
       built.  It is intended to handle non-trivial actions needed along
       the abnormal return path.
  
       The address of the exception handler to which the function should
!      return is passed as operand to this pattern.  It will normally
!      need to copied by the pattern to some special register or memory
       location.  If the pattern needs to determine the location of the
       target call frame in order to do so, it may use
!      `EH_RETURN_STACKADJ_RTX', if defined; it will have already been
       assigned.
  
       If this pattern is not defined, the default action will be to
!      simply copy the return address to `EH_RETURN_HANDLER_RTX'.  Either
       that macro or this pattern needs to be defined if call frame
       exception handling is to be used.
  
! `prologue'
       This pattern, if defined, emits RTL for entry to a function.  The
       function entry is responsible for setting up the stack frame,
       initializing the frame pointer register, saving callee saved
       registers, etc.
  
       Using a prologue pattern is generally preferred over defining
!      `TARGET_ASM_FUNCTION_PROLOGUE' to emit assembly code for the
       prologue.
  
!      The `prologue' pattern is particularly useful for targets which
       perform instruction scheduling.
  
! `window_save'
!      This pattern, if defined, emits RTL for a register window save.
!      It should be defined if the target machine has register windows
!      but the window events are decoupled from calls to subroutines.
!      The canonical example is the SPARC architecture.
  
! `epilogue'
!      This pattern emits RTL for exit from a function.  The function
!      exit is responsible for deallocating the stack frame, restoring
!      callee saved registers and emitting the return instruction.
  
       Using an epilogue pattern is generally preferred over defining
!      `TARGET_ASM_FUNCTION_EPILOGUE' to emit assembly code for the
       epilogue.
  
!      The `epilogue' pattern is particularly useful for targets which
       perform instruction scheduling or which have delay slots for their
       return instruction.
  
! `sibcall_epilogue'
       This pattern, if defined, emits RTL for exit from a function
       without the final branch back to the calling function.  This
       pattern will be emitted before any sibling call (aka tail call)
       sites.
  
!      The `sibcall_epilogue' pattern must not clobber any arguments used
       for parameter passing or any stack slots for arguments passed to
       the current function.
  
! `trap'
       This pattern, if defined, signals an error, typically by causing
       some kind of signal to be raised.  Among other places, it is used
!      by the Java front end to signal `invalid array index' exceptions.
  
! `ctrapMM4'
       Conditional trap instruction.  Operand 0 is a piece of RTL which
       performs a comparison, and operands 1 and 2 are the arms of the
       comparison.  Operand 3 is the trap code, an integer.
  
!      A typical `ctrap' pattern looks like
  
            (define_insn "ctrapsi4"
              [(trap_if (match_operator 0 "trap_operator"
--- 24376,24459 ----
       control; this pattern may be emitted at a small offset from that
       label.
  
! 'builtin_longjmp'
       This pattern, if defined, performs the entire action of the
       longjmp.  You will not normally need to define this pattern unless
!      you also define 'builtin_setjmp_setup'.  The single argument is a
!      pointer to the 'jmp_buf'.
  
! 'eh_return'
!      This pattern, if defined, affects the way '__builtin_eh_return',
       and thence the call frame exception handling library routines, are
       built.  It is intended to handle non-trivial actions needed along
       the abnormal return path.
  
       The address of the exception handler to which the function should
!      return is passed as operand to this pattern.  It will normally need
!      to copied by the pattern to some special register or memory
       location.  If the pattern needs to determine the location of the
       target call frame in order to do so, it may use
!      'EH_RETURN_STACKADJ_RTX', if defined; it will have already been
       assigned.
  
       If this pattern is not defined, the default action will be to
!      simply copy the return address to 'EH_RETURN_HANDLER_RTX'.  Either
       that macro or this pattern needs to be defined if call frame
       exception handling is to be used.
  
! 'prologue'
       This pattern, if defined, emits RTL for entry to a function.  The
       function entry is responsible for setting up the stack frame,
       initializing the frame pointer register, saving callee saved
       registers, etc.
  
       Using a prologue pattern is generally preferred over defining
!      'TARGET_ASM_FUNCTION_PROLOGUE' to emit assembly code for the
       prologue.
  
!      The 'prologue' pattern is particularly useful for targets which
       perform instruction scheduling.
  
! 'window_save'
!      This pattern, if defined, emits RTL for a register window save.  It
!      should be defined if the target machine has register windows but
!      the window events are decoupled from calls to subroutines.  The
!      canonical example is the SPARC architecture.
  
! 'epilogue'
!      This pattern emits RTL for exit from a function.  The function exit
!      is responsible for deallocating the stack frame, restoring callee
!      saved registers and emitting the return instruction.
  
       Using an epilogue pattern is generally preferred over defining
!      'TARGET_ASM_FUNCTION_EPILOGUE' to emit assembly code for the
       epilogue.
  
!      The 'epilogue' pattern is particularly useful for targets which
       perform instruction scheduling or which have delay slots for their
       return instruction.
  
! 'sibcall_epilogue'
       This pattern, if defined, emits RTL for exit from a function
       without the final branch back to the calling function.  This
       pattern will be emitted before any sibling call (aka tail call)
       sites.
  
!      The 'sibcall_epilogue' pattern must not clobber any arguments used
       for parameter passing or any stack slots for arguments passed to
       the current function.
  
! 'trap'
       This pattern, if defined, signals an error, typically by causing
       some kind of signal to be raised.  Among other places, it is used
!      by the Java front end to signal 'invalid array index' exceptions.
  
! 'ctrapMM4'
       Conditional trap instruction.  Operand 0 is a piece of RTL which
       performs a comparison, and operands 1 and 2 are the arms of the
       comparison.  Operand 3 is the trap code, an integer.
  
!      A typical 'ctrap' pattern looks like
  
            (define_insn "ctrapsi4"
              [(trap_if (match_operator 0 "trap_operator"
*************** pattern to accomplish a certain task.
*** 24841,24876 ****
              ""
              "...")
  
! `prefetch'
       This pattern, if defined, emits code for a non-faulting data
       prefetch instruction.  Operand 0 is the address of the memory to
       prefetch.  Operand 1 is a constant 1 if the prefetch is preparing
       for a write to the memory address, or a constant 0 otherwise.
       Operand 2 is the expected degree of temporal locality of the data
       and is a value between 0 and 3, inclusive; 0 means that the data
!      has no temporal locality, so it need not be left in the cache
!      after the access; 3 means that the data has a high degree of
!      temporal locality and should be left in all levels of cache
!      possible;  1 and 2 mean, respectively, a low or moderate degree of
!      temporal locality.
  
       Targets that do not support write prefetches or locality hints can
       ignore the values of operands 1 and 2.
  
! `blockage'
       This pattern defines a pseudo insn that prevents the instruction
       scheduler and other passes from moving instructions and using
       register equivalences across the boundary defined by the blockage
       insn.  This needs to be an UNSPEC_VOLATILE pattern or a volatile
       ASM.
  
! `memory_barrier'
       If the target memory model is not fully synchronous, then this
       pattern should be defined to an instruction that orders both loads
       and stores before the instruction with respect to loads and stores
       after the instruction.  This pattern has no operands.
  
! `sync_compare_and_swapMODE'
       This pattern, if defined, emits code for an atomic compare-and-swap
       operation.  Operand 1 is the memory on which the atomic operation
       is performed.  Operand 2 is the "old" value to be compared against
--- 24463,24498 ----
              ""
              "...")
  
! 'prefetch'
       This pattern, if defined, emits code for a non-faulting data
       prefetch instruction.  Operand 0 is the address of the memory to
       prefetch.  Operand 1 is a constant 1 if the prefetch is preparing
       for a write to the memory address, or a constant 0 otherwise.
       Operand 2 is the expected degree of temporal locality of the data
       and is a value between 0 and 3, inclusive; 0 means that the data
!      has no temporal locality, so it need not be left in the cache after
!      the access; 3 means that the data has a high degree of temporal
!      locality and should be left in all levels of cache possible; 1 and
!      2 mean, respectively, a low or moderate degree of temporal
!      locality.
  
       Targets that do not support write prefetches or locality hints can
       ignore the values of operands 1 and 2.
  
! 'blockage'
       This pattern defines a pseudo insn that prevents the instruction
       scheduler and other passes from moving instructions and using
       register equivalences across the boundary defined by the blockage
       insn.  This needs to be an UNSPEC_VOLATILE pattern or a volatile
       ASM.
  
! 'memory_barrier'
       If the target memory model is not fully synchronous, then this
       pattern should be defined to an instruction that orders both loads
       and stores before the instruction with respect to loads and stores
       after the instruction.  This pattern has no operands.
  
! 'sync_compare_and_swapMODE'
       This pattern, if defined, emits code for an atomic compare-and-swap
       operation.  Operand 1 is the memory on which the atomic operation
       is performed.  Operand 2 is the "old" value to be compared against
*************** pattern to accomplish a certain task.
*** 24891,24918 ****
       For targets where the success or failure of the compare-and-swap
       operation is available via the status flags, it is possible to
       avoid a separate compare operation and issue the subsequent branch
!      or store-flag operation immediately after the compare-and-swap.
!      To this end, GCC will look for a `MODE_CC' set in the output of
!      `sync_compare_and_swapMODE'; if the machine description includes
!      such a set, the target should also define special `cbranchcc4'
!      and/or `cstorecc4' instructions.  GCC will then be able to take
!      the destination of the `MODE_CC' set and pass it to the
!      `cbranchcc4' or `cstorecc4' pattern as the first operand of the
!      comparison (the second will be `(const_int 0)').
  
       For targets where the operating system may provide support for this
!      operation via library calls, the `sync_compare_and_swap_optab' may
       be initialized to a function with the same interface as the
!      `__sync_val_compare_and_swap_N' built-in.  If the entire set of
       __SYNC builtins are supported via library calls, the target can
!      initialize all of the optabs at once with `init_sync_libfuncs'.
!      For the purposes of C++11 `std::atomic::is_lock_free', it is
       assumed that these library calls do _not_ use any kind of
       interruptable locking.
  
! `sync_addMODE', `sync_subMODE'
! `sync_iorMODE', `sync_andMODE'
! `sync_xorMODE', `sync_nandMODE'
       These patterns emit code for an atomic operation on memory.
       Operand 0 is the memory on which the atomic operation is performed.
       Operand 1 is the second operand to the binary operator.
--- 24513,24540 ----
       For targets where the success or failure of the compare-and-swap
       operation is available via the status flags, it is possible to
       avoid a separate compare operation and issue the subsequent branch
!      or store-flag operation immediately after the compare-and-swap.  To
!      this end, GCC will look for a 'MODE_CC' set in the output of
!      'sync_compare_and_swapMODE'; if the machine description includes
!      such a set, the target should also define special 'cbranchcc4'
!      and/or 'cstorecc4' instructions.  GCC will then be able to take the
!      destination of the 'MODE_CC' set and pass it to the 'cbranchcc4' or
!      'cstorecc4' pattern as the first operand of the comparison (the
!      second will be '(const_int 0)').
  
       For targets where the operating system may provide support for this
!      operation via library calls, the 'sync_compare_and_swap_optab' may
       be initialized to a function with the same interface as the
!      '__sync_val_compare_and_swap_N' built-in.  If the entire set of
       __SYNC builtins are supported via library calls, the target can
!      initialize all of the optabs at once with 'init_sync_libfuncs'.
!      For the purposes of C++11 'std::atomic::is_lock_free', it is
       assumed that these library calls do _not_ use any kind of
       interruptable locking.
  
! 'sync_addMODE', 'sync_subMODE'
! 'sync_iorMODE', 'sync_andMODE'
! 'sync_xorMODE', 'sync_nandMODE'
       These patterns emit code for an atomic operation on memory.
       Operand 0 is the memory on which the atomic operation is performed.
       Operand 1 is the second operand to the binary operator.
*************** pattern to accomplish a certain task.
*** 24925,24933 ****
       If these patterns are not defined, the operation will be
       constructed from a compare-and-swap operation, if defined.
  
! `sync_old_addMODE', `sync_old_subMODE'
! `sync_old_iorMODE', `sync_old_andMODE'
! `sync_old_xorMODE', `sync_old_nandMODE'
       These patterns emit code for an atomic operation on memory, and
       return the value that the memory contained before the operation.
       Operand 0 is the result value, operand 1 is the memory on which the
--- 24547,24555 ----
       If these patterns are not defined, the operation will be
       constructed from a compare-and-swap operation, if defined.
  
! 'sync_old_addMODE', 'sync_old_subMODE'
! 'sync_old_iorMODE', 'sync_old_andMODE'
! 'sync_old_xorMODE', 'sync_old_nandMODE'
       These patterns emit code for an atomic operation on memory, and
       return the value that the memory contained before the operation.
       Operand 0 is the result value, operand 1 is the memory on which the
*************** pattern to accomplish a certain task.
*** 24942,24959 ****
       If these patterns are not defined, the operation will be
       constructed from a compare-and-swap operation, if defined.
  
! `sync_new_addMODE', `sync_new_subMODE'
! `sync_new_iorMODE', `sync_new_andMODE'
! `sync_new_xorMODE', `sync_new_nandMODE'
!      These patterns are like their `sync_old_OP' counterparts, except
!      that they return the value that exists in the memory location
!      after the operation, rather than before the operation.
  
! `sync_lock_test_and_setMODE'
       This pattern takes two forms, based on the capabilities of the
       target.  In either case, operand 0 is the result of the operand,
!      operand 1 is the memory on which the atomic operation is
!      performed, and operand 2 is the value to set in the lock.
  
       In the ideal case, this operation is an atomic exchange operation,
       in which the previous value in memory operand is copied into the
--- 24564,24581 ----
       If these patterns are not defined, the operation will be
       constructed from a compare-and-swap operation, if defined.
  
! 'sync_new_addMODE', 'sync_new_subMODE'
! 'sync_new_iorMODE', 'sync_new_andMODE'
! 'sync_new_xorMODE', 'sync_new_nandMODE'
!      These patterns are like their 'sync_old_OP' counterparts, except
!      that they return the value that exists in the memory location after
!      the operation, rather than before the operation.
  
! 'sync_lock_test_and_setMODE'
       This pattern takes two forms, based on the capabilities of the
       target.  In either case, operand 0 is the result of the operand,
!      operand 1 is the memory on which the atomic operation is performed,
!      and operand 2 is the value to set in the lock.
  
       In the ideal case, this operation is an atomic exchange operation,
       in which the previous value in memory operand is copied into the
*************** pattern to accomplish a certain task.
*** 24961,24971 ****
       operand.
  
       For less capable targets, any value operand that is not the
!      constant 1 should be rejected with `FAIL'.  In this case the
!      target may use an atomic test-and-set bit operation.  The result
!      operand should contain 1 if the bit was previously set and 0 if
!      the bit was previously clear.  The true contents of the memory
!      operand are implementation defined.
  
       This pattern must issue any memory barrier instructions such that
       the pattern as a whole acts as an acquire barrier, that is all
--- 24583,24593 ----
       operand.
  
       For less capable targets, any value operand that is not the
!      constant 1 should be rejected with 'FAIL'.  In this case the target
!      may use an atomic test-and-set bit operation.  The result operand
!      should contain 1 if the bit was previously set and 0 if the bit was
!      previously clear.  The true contents of the memory operand are
!      implementation defined.
  
       This pattern must issue any memory barrier instructions such that
       the pattern as a whole acts as an acquire barrier, that is all
*************** pattern to accomplish a certain task.
*** 24975,25015 ****
       If this pattern is not defined, the operation will be constructed
       from a compare-and-swap operation, if defined.
  
! `sync_lock_releaseMODE'
       This pattern, if defined, releases a lock set by
!      `sync_lock_test_and_setMODE'.  Operand 0 is the memory that
       contains the lock; operand 1 is the value to store in the lock.
  
       If the target doesn't implement full semantics for
!      `sync_lock_test_and_setMODE', any value operand which is not the
!      constant 0 should be rejected with `FAIL', and the true contents
!      of the memory operand are implementation defined.
  
       This pattern must issue any memory barrier instructions such that
       the pattern as a whole acts as a release barrier, that is the lock
       is released only after all previous memory operations have
       completed.
  
!      If this pattern is not defined, then a `memory_barrier' pattern
       will be emitted, followed by a store of the value to the memory
       operand.
  
! `atomic_compare_and_swapMODE'
       This pattern, if defined, emits code for an atomic compare-and-swap
       operation with memory model semantics.  Operand 2 is the memory on
       which the atomic operation is performed.  Operand 0 is an output
       operand which is set to true or false based on whether the
       operation succeeded.  Operand 1 is an output operand which is set
       to the contents of the memory before the operation was attempted.
!      Operand 3 is the value that is expected to be in memory.  Operand
!      4 is the value to put in memory if the expected value is found
!      there.  Operand 5 is set to 1 if this compare and swap is to be
!      treated as a weak operation.  Operand 6 is the memory model to be
!      used if the operation is a success.  Operand 7 is the memory model
!      to be used if the operation fails.
  
!      If memory referred to in operand 2 contains the value in operand
!      3, then operand 4 is stored in memory pointed to by operand 2 and
       fencing based on the memory model in operand 6 is issued.
  
       If memory referred to in operand 2 does not contain the value in
--- 24597,24637 ----
       If this pattern is not defined, the operation will be constructed
       from a compare-and-swap operation, if defined.
  
! 'sync_lock_releaseMODE'
       This pattern, if defined, releases a lock set by
!      'sync_lock_test_and_setMODE'.  Operand 0 is the memory that
       contains the lock; operand 1 is the value to store in the lock.
  
       If the target doesn't implement full semantics for
!      'sync_lock_test_and_setMODE', any value operand which is not the
!      constant 0 should be rejected with 'FAIL', and the true contents of
!      the memory operand are implementation defined.
  
       This pattern must issue any memory barrier instructions such that
       the pattern as a whole acts as a release barrier, that is the lock
       is released only after all previous memory operations have
       completed.
  
!      If this pattern is not defined, then a 'memory_barrier' pattern
       will be emitted, followed by a store of the value to the memory
       operand.
  
! 'atomic_compare_and_swapMODE'
       This pattern, if defined, emits code for an atomic compare-and-swap
       operation with memory model semantics.  Operand 2 is the memory on
       which the atomic operation is performed.  Operand 0 is an output
       operand which is set to true or false based on whether the
       operation succeeded.  Operand 1 is an output operand which is set
       to the contents of the memory before the operation was attempted.
!      Operand 3 is the value that is expected to be in memory.  Operand 4
!      is the value to put in memory if the expected value is found there.
!      Operand 5 is set to 1 if this compare and swap is to be treated as
!      a weak operation.  Operand 6 is the memory model to be used if the
!      operation is a success.  Operand 7 is the memory model to be used
!      if the operation fails.
  
!      If memory referred to in operand 2 contains the value in operand 3,
!      then operand 4 is stored in memory pointed to by operand 2 and
       fencing based on the memory model in operand 6 is issued.
  
       If memory referred to in operand 2 does not contain the value in
*************** pattern to accomplish a certain task.
*** 25021,25129 ****
       operand 5 can be ignored.  Note a strong implementation must be
       provided.
  
!      If this pattern is not provided, the `__atomic_compare_exchange'
!      built-in functions will utilize the legacy `sync_compare_and_swap'
!      pattern with an `__ATOMIC_SEQ_CST' memory model.
  
! `atomic_loadMODE'
       This pattern implements an atomic load operation with memory model
       semantics.  Operand 1 is the memory address being loaded from.
!      Operand 0 is the result of the load.  Operand 2 is the memory
!      model to be used for the load operation.
  
!      If not present, the `__atomic_load' built-in function will either
       resort to a normal load with memory barriers, or a compare-and-swap
       operation if a normal load would not be atomic.
  
! `atomic_storeMODE'
       This pattern implements an atomic store operation with memory model
       semantics.  Operand 0 is the memory address being stored to.
       Operand 1 is the value to be written.  Operand 2 is the memory
       model to be used for the operation.
  
!      If not present, the `__atomic_store' built-in function will
!      attempt to perform a normal store and surround it with any
!      required memory fences.  If the store would not be atomic, then an
!      `__atomic_exchange' is attempted with the result being ignored.
  
! `atomic_exchangeMODE'
       This pattern implements an atomic exchange operation with memory
!      model semantics.  Operand 1 is the memory location the operation
!      is performed on.  Operand 0 is an output operand which is set to
!      the original value contained in the memory pointed to by operand
!      1.  Operand 2 is the value to be stored.  Operand 3 is the memory
!      model to be used.
  
       If this pattern is not present, the built-in function
!      `__atomic_exchange' will attempt to preform the operation with a
       compare and swap loop.
  
! `atomic_addMODE', `atomic_subMODE'
! `atomic_orMODE', `atomic_andMODE'
! `atomic_xorMODE', `atomic_nandMODE'
       These patterns emit code for an atomic operation on memory with
!      memory model semantics. Operand 0 is the memory on which the
       atomic operation is performed.  Operand 1 is the second operand to
       the binary operator.  Operand 2 is the memory model to be used by
       the operation.
  
       If these patterns are not defined, attempts will be made to use
!      legacy `sync' patterns, or equivalent patterns which return a
       result.  If none of these are available a compare-and-swap loop
       will be used.
  
! `atomic_fetch_addMODE', `atomic_fetch_subMODE'
! `atomic_fetch_orMODE', `atomic_fetch_andMODE'
! `atomic_fetch_xorMODE', `atomic_fetch_nandMODE'
       These patterns emit code for an atomic operation on memory with
!      memory model semantics, and return the original value. Operand 0
       is an output operand which contains the value of the memory
       location before the operation was performed.  Operand 1 is the
       memory on which the atomic operation is performed.  Operand 2 is
!      the second operand to the binary operator.  Operand 3 is the
!      memory model to be used by the operation.
  
       If these patterns are not defined, attempts will be made to use
!      legacy `sync' patterns.  If none of these are available a
       compare-and-swap loop will be used.
  
! `atomic_add_fetchMODE', `atomic_sub_fetchMODE'
! `atomic_or_fetchMODE', `atomic_and_fetchMODE'
! `atomic_xor_fetchMODE', `atomic_nand_fetchMODE'
       These patterns emit code for an atomic operation on memory with
!      memory model semantics and return the result after the operation
!      is performed.  Operand 0 is an output operand which contains the
!      value after the operation.  Operand 1 is the memory on which the
!      atomic operation is performed.  Operand 2 is the second operand to
!      the binary operator.  Operand 3 is the memory model to be used by
!      the operation.
  
       If these patterns are not defined, attempts will be made to use
!      legacy `sync' patterns, or equivalent patterns which return the
       result before the operation followed by the arithmetic operation
       required to produce the result.  If none of these are available a
       compare-and-swap loop will be used.
  
! `atomic_test_and_set'
!      This pattern emits code for `__builtin_atomic_test_and_set'.
       Operand 0 is an output operand which is set to true if the previous
       previous contents of the byte was "set", and false otherwise.
!      Operand 1 is the `QImode' memory to be modified.  Operand 2 is the
       memory model to be used.
  
       The specific value that defines "set" is implementation defined,
       and is normally based on what is performed by the native atomic
       test and set instruction.
  
! `mem_thread_fenceMODE'
       This pattern emits code required to implement a thread fence with
       memory model semantics.  Operand 0 is the memory model to be used.
  
       If this pattern is not specified, all memory models except
!      `__ATOMIC_RELAXED' will result in issuing a `sync_synchronize'
       barrier pattern.
  
! `mem_signal_fenceMODE'
       This pattern emits code required to implement a signal fence with
       memory model semantics.  Operand 0 is the memory model to be used.
  
--- 24643,24751 ----
       operand 5 can be ignored.  Note a strong implementation must be
       provided.
  
!      If this pattern is not provided, the '__atomic_compare_exchange'
!      built-in functions will utilize the legacy 'sync_compare_and_swap'
!      pattern with an '__ATOMIC_SEQ_CST' memory model.
  
! 'atomic_loadMODE'
       This pattern implements an atomic load operation with memory model
       semantics.  Operand 1 is the memory address being loaded from.
!      Operand 0 is the result of the load.  Operand 2 is the memory model
!      to be used for the load operation.
  
!      If not present, the '__atomic_load' built-in function will either
       resort to a normal load with memory barriers, or a compare-and-swap
       operation if a normal load would not be atomic.
  
! 'atomic_storeMODE'
       This pattern implements an atomic store operation with memory model
       semantics.  Operand 0 is the memory address being stored to.
       Operand 1 is the value to be written.  Operand 2 is the memory
       model to be used for the operation.
  
!      If not present, the '__atomic_store' built-in function will attempt
!      to perform a normal store and surround it with any required memory
!      fences.  If the store would not be atomic, then an
!      '__atomic_exchange' is attempted with the result being ignored.
  
! 'atomic_exchangeMODE'
       This pattern implements an atomic exchange operation with memory
!      model semantics.  Operand 1 is the memory location the operation is
!      performed on.  Operand 0 is an output operand which is set to the
!      original value contained in the memory pointed to by operand 1.
!      Operand 2 is the value to be stored.  Operand 3 is the memory model
!      to be used.
  
       If this pattern is not present, the built-in function
!      '__atomic_exchange' will attempt to preform the operation with a
       compare and swap loop.
  
! 'atomic_addMODE', 'atomic_subMODE'
! 'atomic_orMODE', 'atomic_andMODE'
! 'atomic_xorMODE', 'atomic_nandMODE'
       These patterns emit code for an atomic operation on memory with
!      memory model semantics.  Operand 0 is the memory on which the
       atomic operation is performed.  Operand 1 is the second operand to
       the binary operator.  Operand 2 is the memory model to be used by
       the operation.
  
       If these patterns are not defined, attempts will be made to use
!      legacy 'sync' patterns, or equivalent patterns which return a
       result.  If none of these are available a compare-and-swap loop
       will be used.
  
! 'atomic_fetch_addMODE', 'atomic_fetch_subMODE'
! 'atomic_fetch_orMODE', 'atomic_fetch_andMODE'
! 'atomic_fetch_xorMODE', 'atomic_fetch_nandMODE'
       These patterns emit code for an atomic operation on memory with
!      memory model semantics, and return the original value.  Operand 0
       is an output operand which contains the value of the memory
       location before the operation was performed.  Operand 1 is the
       memory on which the atomic operation is performed.  Operand 2 is
!      the second operand to the binary operator.  Operand 3 is the memory
!      model to be used by the operation.
  
       If these patterns are not defined, attempts will be made to use
!      legacy 'sync' patterns.  If none of these are available a
       compare-and-swap loop will be used.
  
! 'atomic_add_fetchMODE', 'atomic_sub_fetchMODE'
! 'atomic_or_fetchMODE', 'atomic_and_fetchMODE'
! 'atomic_xor_fetchMODE', 'atomic_nand_fetchMODE'
       These patterns emit code for an atomic operation on memory with
!      memory model semantics and return the result after the operation is
!      performed.  Operand 0 is an output operand which contains the value
!      after the operation.  Operand 1 is the memory on which the atomic
!      operation is performed.  Operand 2 is the second operand to the
!      binary operator.  Operand 3 is the memory model to be used by the
!      operation.
  
       If these patterns are not defined, attempts will be made to use
!      legacy 'sync' patterns, or equivalent patterns which return the
       result before the operation followed by the arithmetic operation
       required to produce the result.  If none of these are available a
       compare-and-swap loop will be used.
  
! 'atomic_test_and_set'
!      This pattern emits code for '__builtin_atomic_test_and_set'.
       Operand 0 is an output operand which is set to true if the previous
       previous contents of the byte was "set", and false otherwise.
!      Operand 1 is the 'QImode' memory to be modified.  Operand 2 is the
       memory model to be used.
  
       The specific value that defines "set" is implementation defined,
       and is normally based on what is performed by the native atomic
       test and set instruction.
  
! 'mem_thread_fenceMODE'
       This pattern emits code required to implement a thread fence with
       memory model semantics.  Operand 0 is the memory model to be used.
  
       If this pattern is not specified, all memory models except
!      '__ATOMIC_RELAXED' will result in issuing a 'sync_synchronize'
       barrier pattern.
  
! 'mem_signal_fenceMODE'
       This pattern emits code required to implement a signal fence with
       memory model semantics.  Operand 0 is the memory model to be used.
  
*************** pattern to accomplish a certain task.
*** 25132,25152 ****
       barrier instructions.
  
       If this pattern is not specified, all memory models except
!      `__ATOMIC_RELAXED' will result in issuing a `sync_synchronize'
       barrier pattern.
  
! `get_thread_pointerMODE'
! `set_thread_pointerMODE'
       These patterns emit code that reads/sets the TLS thread pointer.
       Currently, these are only needed if the target needs to support the
!      `__builtin_thread_pointer' and `__builtin_set_thread_pointer'
       builtins.
  
       The get/set patterns have a single output/input operand
!      respectively, with MODE intended to be `Pmode'.
  
! `stack_protect_set'
!      This pattern, if defined, moves a `ptr_mode' value from the memory
       in operand 1 to the memory in operand 0 without leaving the value
       in a register afterward.  This is to avoid leaking the value some
       place that an attacker might use to rewrite the stack guard slot
--- 24754,24774 ----
       barrier instructions.
  
       If this pattern is not specified, all memory models except
!      '__ATOMIC_RELAXED' will result in issuing a 'sync_synchronize'
       barrier pattern.
  
! 'get_thread_pointerMODE'
! 'set_thread_pointerMODE'
       These patterns emit code that reads/sets the TLS thread pointer.
       Currently, these are only needed if the target needs to support the
!      '__builtin_thread_pointer' and '__builtin_set_thread_pointer'
       builtins.
  
       The get/set patterns have a single output/input operand
!      respectively, with MODE intended to be 'Pmode'.
  
! 'stack_protect_set'
!      This pattern, if defined, moves a 'ptr_mode' value from the memory
       in operand 1 to the memory in operand 0 without leaving the value
       in a register afterward.  This is to avoid leaking the value some
       place that an attacker might use to rewrite the stack guard slot
*************** pattern to accomplish a certain task.
*** 25155,25162 ****
       If this pattern is not defined, then a plain move pattern is
       generated.
  
! `stack_protect_test'
!      This pattern, if defined, compares a `ptr_mode' value from the
       memory in operand 1 with the memory in operand 0 without leaving
       the value in a register afterward and branches to operand 2 if the
       values were equal.
--- 24777,24784 ----
       If this pattern is not defined, then a plain move pattern is
       generated.
  
! 'stack_protect_test'
!      This pattern, if defined, compares a 'ptr_mode' value from the
       memory in operand 1 with the memory in operand 0 without leaving
       the value in a register afterward and branches to operand 2 if the
       values were equal.
*************** pattern to accomplish a certain task.
*** 25164,25177 ****
       If this pattern is not defined, then a plain compare pattern and
       conditional branch pattern is used.
  
! `clear_cache'
       This pattern, if defined, flushes the instruction cache for a
       region of memory.  The region is bounded to by the Pmode pointers
       in operand 0 inclusive and operand 1 exclusive.
  
       If this pattern is not defined, a call to the library function
!      `__clear_cache' is used.
! 
  
  
  File: gccint.info,  Node: Pattern Ordering,  Next: Dependent Patterns,  Prev: Standard Names,  Up: Machine Desc
--- 24786,24798 ----
       If this pattern is not defined, then a plain compare pattern and
       conditional branch pattern is used.
  
! 'clear_cache'
       This pattern, if defined, flushes the instruction cache for a
       region of memory.  The region is bounded to by the Pmode pointers
       in operand 0 inclusive and operand 1 exclusive.
  
       If this pattern is not defined, a call to the library function
!      '__clear_cache' is used.
  
  
  File: gccint.info,  Node: Pattern Ordering,  Next: Dependent Patterns,  Prev: Standard Names,  Up: Machine Desc
*************** Therefore, more specific patterns (patte
*** 25185,25201 ****
  things) and faster instructions (those that will produce better code
  when they do match) should usually go first in the description.
  
!  In some cases the effect of ordering the patterns can be used to hide
! a pattern when it is not valid.  For example, the 68000 has an
! instruction for converting a fullword to floating point and another for
! converting a byte to floating point.  An instruction converting an
! integer to floating point could match either one.  We put the pattern
! to convert the fullword first to make sure that one will be used rather
! than the other.  (Otherwise a large integer might be generated as a
! single-byte immediate quantity, which would not work.)  Instead of
! using this pattern ordering it would be possible to make the pattern
! for convert-a-byte smart enough to deal properly with any constant
! value.
  
  
  File: gccint.info,  Node: Dependent Patterns,  Next: Jump Patterns,  Prev: Pattern Ordering,  Up: Machine Desc
--- 24806,24821 ----
  things) and faster instructions (those that will produce better code
  when they do match) should usually go first in the description.
  
!  In some cases the effect of ordering the patterns can be used to hide a
! pattern when it is not valid.  For example, the 68000 has an instruction
! for converting a fullword to floating point and another for converting a
! byte to floating point.  An instruction converting an integer to
! floating point could match either one.  We put the pattern to convert
! the fullword first to make sure that one will be used rather than the
! other.  (Otherwise a large integer might be generated as a single-byte
! immediate quantity, which would not work.)  Instead of using this
! pattern ordering it would be possible to make the pattern for
! convert-a-byte smart enough to deal properly with any constant value.
  
  
  File: gccint.info,  Node: Dependent Patterns,  Next: Jump Patterns,  Prev: Pattern Ordering,  Up: Machine Desc
*************** Constant integers do not specify a machi
*** 25218,25229 ****
  extend a constant value could match either pattern.  The pattern it
  actually will match is the one that appears first in the file.  For
  correct results, this must be the one for the widest possible mode
! (`HImode', here).  If the pattern matches the `QImode' instruction, the
  results will be incorrect if the constant value does not actually fit
  that mode.
  
!  Such instructions to extend constants are rarely generated because
! they are optimized away, but they do occasionally happen in nonoptimized
  compilations.
  
   If a constraint in a pattern allows a constant, the reload pass may
--- 24838,24849 ----
  extend a constant value could match either pattern.  The pattern it
  actually will match is the one that appears first in the file.  For
  correct results, this must be the one for the widest possible mode
! ('HImode', here).  If the pattern matches the 'QImode' instruction, the
  results will be incorrect if the constant value does not actually fit
  that mode.
  
!  Such instructions to extend constants are rarely generated because they
! are optimized away, but they do occasionally happen in nonoptimized
  compilations.
  
   If a constraint in a pattern allows a constant, the reload pass may
*************** File: gccint.info,  Node: Jump Patterns,
*** 25242,25270 ****
  
  GCC does not assume anything about how the machine realizes jumps.  The
  machine description should define a single pattern, usually a
! `define_expand', which expands to all the required insns.
  
   Usually, this would be a comparison insn to set the condition code and
  a separate branch insn testing the condition code and branching or not
! according to its value.  For many machines, however, separating
! compares and branches is limiting, which is why the more flexible
! approach with one `define_expand' is used in GCC.  The machine
! description becomes clearer for architectures that have
! compare-and-branch instructions but no condition code.  It also works
! better when different sets of comparison operators are supported by
! different kinds of conditional branches (e.g. integer vs.
! floating-point), or by conditional branches with respect to conditional
! stores.
  
   Two separate insns are always used if the machine description
  represents a condition code register using the legacy RTL expression
! `(cc0)', and on most machines that use a separate condition code
! register (*note Condition Code::).  For machines that use `(cc0)', in
  fact, the set and use of the condition code must be separate and
! adjacent(1), thus allowing flags in `cc_status' to be used (*note
  Condition Code::) and so that the comparison and branch insns could be
! located from each other by using the functions `prev_cc0_setter' and
! `next_cc0_user'.
  
   Even in this case having a single entry point for conditional branches
  is advantageous, because it handles equally well the case where a single
--- 24862,24889 ----
  
  GCC does not assume anything about how the machine realizes jumps.  The
  machine description should define a single pattern, usually a
! 'define_expand', which expands to all the required insns.
  
   Usually, this would be a comparison insn to set the condition code and
  a separate branch insn testing the condition code and branching or not
! according to its value.  For many machines, however, separating compares
! and branches is limiting, which is why the more flexible approach with
! one 'define_expand' is used in GCC. The machine description becomes
! clearer for architectures that have compare-and-branch instructions but
! no condition code.  It also works better when different sets of
! comparison operators are supported by different kinds of conditional
! branches (e.g.  integer vs.  floating-point), or by conditional branches
! with respect to conditional stores.
  
   Two separate insns are always used if the machine description
  represents a condition code register using the legacy RTL expression
! '(cc0)', and on most machines that use a separate condition code
! register (*note Condition Code::).  For machines that use '(cc0)', in
  fact, the set and use of the condition code must be separate and
! adjacent(1), thus allowing flags in 'cc_status' to be used (*note
  Condition Code::) and so that the comparison and branch insns could be
! located from each other by using the functions 'prev_cc0_setter' and
! 'next_cc0_user'.
  
   Even in this case having a single entry point for conditional branches
  is advantageous, because it handles equally well the case where a single
*************** distinct signed and unsigned flavors) as
*** 25274,25282 ****
  case where there are distinct signed and unsigned compare instructions
  and only one set of conditional branch instructions as in the PowerPC.
  
!  ---------- Footnotes ----------
  
!  (1) `note' insns can separate them, though.
  
  
  File: gccint.info,  Node: Looping Patterns,  Next: Insn Canonicalizations,  Prev: Jump Patterns,  Up: Machine Desc
--- 24893,24901 ----
  case where there are distinct signed and unsigned compare instructions
  and only one set of conditional branch instructions as in the PowerPC.
  
!    ---------- Footnotes ----------
  
!    (1) 'note' insns can separate them, though.
  
  
  File: gccint.info,  Node: Looping Patterns,  Next: Insn Canonicalizations,  Prev: Jump Patterns,  Up: Machine Desc
*************** File: gccint.info,  Node: Looping Patter
*** 25285,25291 ****
  ===========================================
  
  Some machines have special jump instructions that can be utilized to
! make loops more efficient.  A common example is the 68000 `dbra'
  instruction which performs a decrement of a register and a branch if the
  result was greater than zero.  Other machines, in particular digital
  signal processors (DSPs), have special block repeat instructions to
--- 24904,24910 ----
  ===========================================
  
  Some machines have special jump instructions that can be utilized to
! make loops more efficient.  A common example is the 68000 'dbra'
  instruction which performs a decrement of a register and a branch if the
  result was greater than zero.  Other machines, in particular digital
  signal processors (DSPs), have special block repeat instructions to
*************** provide low-overhead loop support.  For
*** 25293,25312 ****
  DSPs have a block repeat instruction that loads special registers to
  mark the top and end of a loop and to count the number of loop
  iterations.  This avoids the need for fetching and executing a
! `dbra'-like instruction and avoids pipeline stalls associated with the
  jump.
  
   GCC has three special named patterns to support low overhead looping.
! They are `decrement_and_branch_until_zero', `doloop_begin', and
! `doloop_end'.  The first pattern, `decrement_and_branch_until_zero', is
  not emitted during RTL generation but may be emitted during the
! instruction combination phase.  This requires the assistance of the
! loop optimizer, using information collected during strength reduction,
! to reverse a loop to count down to zero.  Some targets also require the
! loop optimizer to add a `REG_NONNEG' note to indicate that the
! iteration count is always positive.  This is needed if the target
! performs a signed loop termination test.  For example, the 68000 uses a
! pattern similar to the following for its `dbra' instruction:
  
       (define_insn "decrement_and_branch_until_zero"
         [(set (pc)
--- 24912,24931 ----
  DSPs have a block repeat instruction that loads special registers to
  mark the top and end of a loop and to count the number of loop
  iterations.  This avoids the need for fetching and executing a
! 'dbra'-like instruction and avoids pipeline stalls associated with the
  jump.
  
   GCC has three special named patterns to support low overhead looping.
! They are 'decrement_and_branch_until_zero', 'doloop_begin', and
! 'doloop_end'.  The first pattern, 'decrement_and_branch_until_zero', is
  not emitted during RTL generation but may be emitted during the
! instruction combination phase.  This requires the assistance of the loop
! optimizer, using information collected during strength reduction, to
! reverse a loop to count down to zero.  Some targets also require the
! loop optimizer to add a 'REG_NONNEG' note to indicate that the iteration
! count is always positive.  This is needed if the target performs a
! signed loop termination test.  For example, the 68000 uses a pattern
! similar to the following for its 'dbra' instruction:
  
       (define_insn "decrement_and_branch_until_zero"
         [(set (pc)
*************** pattern similar to the following for its
*** 25323,25329 ****
         "...")
  
   Note that since the insn is both a jump insn and has an output, it must
! deal with its own reloads, hence the `m' constraints.  Also note that
  since this insn is generated by the instruction combination phase
  combining two sequential insns together into an implicit parallel insn,
  the iteration counter needs to be biased by the same amount as the
--- 24942,24948 ----
         "...")
  
   Note that since the insn is both a jump insn and has an output, it must
! deal with its own reloads, hence the 'm' constraints.  Also note that
  since this insn is generated by the instruction combination phase
  combining two sequential insns together into an implicit parallel insn,
  the iteration counter needs to be biased by the same amount as the
*************** pattern will not be matched by the combi
*** 25343,25378 ****
         "find_reg_note (insn, REG_NONNEG, 0)"
         "...")
  
!  The other two special looping patterns, `doloop_begin' and
! `doloop_end', are emitted by the loop optimizer for certain
! well-behaved loops with a finite number of loop iterations using
! information collected during strength reduction.
  
!  The `doloop_end' pattern describes the actual looping instruction (or
! the implicit looping operation) and the `doloop_begin' pattern is an
  optional companion pattern that can be used for initialization needed
  for some low-overhead looping instructions.
  
   Note that some machines require the actual looping instruction to be
  emitted at the top of the loop (e.g., the TMS320C3x/C4x DSPs).  Emitting
  the true RTL for a looping instruction at the top of the loop can cause
! problems with flow analysis.  So instead, a dummy `doloop' insn is
  emitted at the end of the loop.  The machine dependent reorg pass checks
! for the presence of this `doloop' insn and then searches back to the
! top of the loop, where it inserts the true looping insn (provided there
! are no instructions in the loop which would cause problems).  Any
! additional labels can be emitted at this point.  In addition, if the
! desired special iteration counter register was not allocated, this
! machine dependent reorg pass could emit a traditional compare and jump
  instruction pair.
  
!  The essential difference between the `decrement_and_branch_until_zero'
! and the `doloop_end' patterns is that the loop optimizer allocates an
! additional pseudo register for the latter as an iteration counter.
! This pseudo register cannot be used within the loop (i.e., general
! induction variables cannot be derived from it), however, in many cases
! the loop induction variable may become redundant and removed by the
! flow pass.
  
  
  File: gccint.info,  Node: Insn Canonicalizations,  Next: Expander Definitions,  Prev: Looping Patterns,  Up: Machine Desc
--- 24962,24996 ----
         "find_reg_note (insn, REG_NONNEG, 0)"
         "...")
  
!  The other two special looping patterns, 'doloop_begin' and
! 'doloop_end', are emitted by the loop optimizer for certain well-behaved
! loops with a finite number of loop iterations using information
! collected during strength reduction.
  
!  The 'doloop_end' pattern describes the actual looping instruction (or
! the implicit looping operation) and the 'doloop_begin' pattern is an
  optional companion pattern that can be used for initialization needed
  for some low-overhead looping instructions.
  
   Note that some machines require the actual looping instruction to be
  emitted at the top of the loop (e.g., the TMS320C3x/C4x DSPs).  Emitting
  the true RTL for a looping instruction at the top of the loop can cause
! problems with flow analysis.  So instead, a dummy 'doloop' insn is
  emitted at the end of the loop.  The machine dependent reorg pass checks
! for the presence of this 'doloop' insn and then searches back to the top
! of the loop, where it inserts the true looping insn (provided there are
! no instructions in the loop which would cause problems).  Any additional
! labels can be emitted at this point.  In addition, if the desired
! special iteration counter register was not allocated, this machine
! dependent reorg pass could emit a traditional compare and jump
  instruction pair.
  
!  The essential difference between the 'decrement_and_branch_until_zero'
! and the 'doloop_end' patterns is that the loop optimizer allocates an
! additional pseudo register for the latter as an iteration counter.  This
! pseudo register cannot be used within the loop (i.e., general induction
! variables cannot be derived from it), however, in many cases the loop
! induction variable may become redundant and removed by the flow pass.
  
  
  File: gccint.info,  Node: Insn Canonicalizations,  Next: Expander Definitions,  Prev: Looping Patterns,  Up: Machine Desc
*************** number of insn patterns required.
*** 25390,25434 ****
   In addition to algebraic simplifications, following canonicalizations
  are performed:
  
!    * For commutative and comparison operators, a constant is always
!      made the second operand.  If a machine only supports a constant as
!      the second operand, only patterns that match a constant in the
!      second operand need be supplied.
  
     * For associative operators, a sequence of operators will always
       chain to the left; for instance, only the left operand of an
!      integer `plus' can itself be a `plus'.  `and', `ior', `xor',
!      `plus', `mult', `smin', `smax', `umin', and `umax' are associative
       when applied to integers, and sometimes to floating-point.
  
!    * For these operators, if only one operand is a `neg', `not',
!      `mult', `plus', or `minus' expression, it will be the first
!      operand.
  
!    * In combinations of `neg', `mult', `plus', and `minus', the `neg'
       operations (if any) will be moved inside the operations as far as
!      possible.  For instance, `(neg (mult A B))' is canonicalized as
!      `(mult (neg A) B)', but `(plus (mult (neg B) C) A)' is
!      canonicalized as `(minus A (mult B C))'.
  
!    * For the `compare' operator, a constant is always the second operand
!      if the first argument is a condition code register or `(cc0)'.
  
!    * An operand of `neg', `not', `mult', `plus', or `minus' is made the
       first operand under the same conditions as above.
  
!    * `(ltu (plus A B) B)' is converted to `(ltu (plus A B) A)'.
!      Likewise with `geu' instead of `ltu'.
  
!    * `(minus X (const_int N))' is converted to `(plus X (const_int
       -N))'.
  
!    * Within address computations (i.e., inside `mem'), a left shift is
       converted into the appropriate multiplication by a power of two.
  
     * De Morgan's Law is used to move bitwise negation inside a bitwise
       logical-and or logical-or operation.  If this results in only one
!      operand being a `not' expression, it will be the first one.
  
       A machine that has an instruction that performs a bitwise
       logical-and of one operand with the bitwise negation of the other
--- 25008,25051 ----
   In addition to algebraic simplifications, following canonicalizations
  are performed:
  
!    * For commutative and comparison operators, a constant is always made
!      the second operand.  If a machine only supports a constant as the
!      second operand, only patterns that match a constant in the second
!      operand need be supplied.
  
     * For associative operators, a sequence of operators will always
       chain to the left; for instance, only the left operand of an
!      integer 'plus' can itself be a 'plus'.  'and', 'ior', 'xor',
!      'plus', 'mult', 'smin', 'smax', 'umin', and 'umax' are associative
       when applied to integers, and sometimes to floating-point.
  
!    * For these operators, if only one operand is a 'neg', 'not', 'mult',
!      'plus', or 'minus' expression, it will be the first operand.
  
!    * In combinations of 'neg', 'mult', 'plus', and 'minus', the 'neg'
       operations (if any) will be moved inside the operations as far as
!      possible.  For instance, '(neg (mult A B))' is canonicalized as
!      '(mult (neg A) B)', but '(plus (mult (neg B) C) A)' is
!      canonicalized as '(minus A (mult B C))'.
  
!    * For the 'compare' operator, a constant is always the second operand
!      if the first argument is a condition code register or '(cc0)'.
  
!    * An operand of 'neg', 'not', 'mult', 'plus', or 'minus' is made the
       first operand under the same conditions as above.
  
!    * '(ltu (plus A B) B)' is converted to '(ltu (plus A B) A)'.
!      Likewise with 'geu' instead of 'ltu'.
  
!    * '(minus X (const_int N))' is converted to '(plus X (const_int
       -N))'.
  
!    * Within address computations (i.e., inside 'mem'), a left shift is
       converted into the appropriate multiplication by a power of two.
  
     * De Morgan's Law is used to move bitwise negation inside a bitwise
       logical-and or logical-or operation.  If this results in only one
!      operand being a 'not' expression, it will be the first one.
  
       A machine that has an instruction that performs a bitwise
       logical-and of one operand with the bitwise negation of the other
*************** are performed:
*** 25454,25460 ****
       logically equivalent RTL expressions.
  
     * The only possible RTL expressions involving both bitwise
!      exclusive-or and bitwise negation are `(xor:M X Y)' and `(not:M
       (xor:M X Y))'.
  
     * The sum of three items, one of which is a constant, will only
--- 25071,25077 ----
       logically equivalent RTL expressions.
  
     * The only possible RTL expressions involving both bitwise
!      exclusive-or and bitwise negation are '(xor:M X Y)' and '(not:M
       (xor:M X Y))'.
  
     * The sum of three items, one of which is a constant, will only
*************** are performed:
*** 25462,25486 ****
  
            (plus:M (plus:M X Y) CONSTANT)
  
!    * Equality comparisons of a group of bits (usually a single bit)
!      with zero will be written using `zero_extract' rather than the
!      equivalent `and' or `sign_extract' operations.
! 
!    * `(sign_extend:M1 (mult:M2 (sign_extend:M2 X) (sign_extend:M2 Y)))'
!      is converted to `(mult:M1 (sign_extend:M1 X) (sign_extend:M1 Y))',
!      and likewise for `zero_extend'.
  
!    * `(sign_extend:M1 (mult:M2 (ashiftrt:M2 X S) (sign_extend:M2 Y)))'
!      is converted to `(mult:M1 (sign_extend:M1 (ashiftrt:M2 X S))
!      (sign_extend:M1 Y))', and likewise for patterns using
!      `zero_extend' and `lshiftrt'.  If the second operand of `mult' is
!      also a shift, then that is extended also.  This transformation is
!      only applied when it can be proven that the original operation had
!      sufficient precision to prevent overflow.
  
  
   Further canonicalization rules are defined in the function
! `commutative_operand_precedence' in `gcc/rtlanal.c'.
  
  
  File: gccint.info,  Node: Expander Definitions,  Next: Insn Splitting,  Prev: Insn Canonicalizations,  Up: Machine Desc
--- 25079,25102 ----
  
            (plus:M (plus:M X Y) CONSTANT)
  
!    * Equality comparisons of a group of bits (usually a single bit) with
!      zero will be written using 'zero_extract' rather than the
!      equivalent 'and' or 'sign_extract' operations.
  
!    * '(sign_extend:M1 (mult:M2 (sign_extend:M2 X) (sign_extend:M2 Y)))'
!      is converted to '(mult:M1 (sign_extend:M1 X) (sign_extend:M1 Y))',
!      and likewise for 'zero_extend'.
  
+    * '(sign_extend:M1 (mult:M2 (ashiftrt:M2 X S) (sign_extend:M2 Y)))'
+      is converted to '(mult:M1 (sign_extend:M1 (ashiftrt:M2 X S))
+      (sign_extend:M1 Y))', and likewise for patterns using 'zero_extend'
+      and 'lshiftrt'.  If the second operand of 'mult' is also a shift,
+      then that is extended also.  This transformation is only applied
+      when it can be proven that the original operation had sufficient
+      precision to prevent overflow.
  
   Further canonicalization rules are defined in the function
! 'commutative_operand_precedence' in 'gcc/rtlanal.c'.
  
  
  File: gccint.info,  Node: Expander Definitions,  Next: Insn Splitting,  Prev: Insn Canonicalizations,  Up: Machine Desc
*************** File: gccint.info,  Node: Expander Defin
*** 25491,25520 ****
  On some target machines, some standard pattern names for RTL generation
  cannot be handled with single insn, but a sequence of RTL insns can
  represent them.  For these target machines, you can write a
! `define_expand' to specify how to generate the sequence of RTL.
  
!  A `define_expand' is an RTL expression that looks almost like a
! `define_insn'; but, unlike the latter, a `define_expand' is used only
  for RTL generation and it can produce more than one RTL insn.
  
!  A `define_expand' RTX has four operands:
  
!    * The name.  Each `define_expand' must have a name, since the only
       use for it is to refer to it by name.
  
     * The RTL template.  This is a vector of RTL expressions representing
!      a sequence of separate instructions.  Unlike `define_insn', there
!      is no implicit surrounding `PARALLEL'.
  
!    * The condition, a string containing a C expression.  This
!      expression is used to express how the availability of this pattern
!      depends on subclasses of target machine, selected by command-line
!      options when GCC is run.  This is just like the condition of a
!      `define_insn' that has a standard name.  Therefore, the condition
!      (if present) may not depend on the data in the insn being matched,
!      but only the target-machine-type flags.  The compiler needs to
!      test these conditions during initialization in order to learn
!      exactly which named instructions are available in a particular run.
  
     * The preparation statements, a string containing zero or more C
       statements which are to be executed before RTL code is generated
--- 25107,25136 ----
  On some target machines, some standard pattern names for RTL generation
  cannot be handled with single insn, but a sequence of RTL insns can
  represent them.  For these target machines, you can write a
! 'define_expand' to specify how to generate the sequence of RTL.
  
!  A 'define_expand' is an RTL expression that looks almost like a
! 'define_insn'; but, unlike the latter, a 'define_expand' is used only
  for RTL generation and it can produce more than one RTL insn.
  
!  A 'define_expand' RTX has four operands:
  
!    * The name.  Each 'define_expand' must have a name, since the only
       use for it is to refer to it by name.
  
     * The RTL template.  This is a vector of RTL expressions representing
!      a sequence of separate instructions.  Unlike 'define_insn', there
!      is no implicit surrounding 'PARALLEL'.
  
!    * The condition, a string containing a C expression.  This expression
!      is used to express how the availability of this pattern depends on
!      subclasses of target machine, selected by command-line options when
!      GCC is run.  This is just like the condition of a 'define_insn'
!      that has a standard name.  Therefore, the condition (if present)
!      may not depend on the data in the insn being matched, but only the
!      target-machine-type flags.  The compiler needs to test these
!      conditions during initialization in order to learn exactly which
!      named instructions are available in a particular run.
  
     * The preparation statements, a string containing zero or more C
       statements which are to be executed before RTL code is generated
*************** for RTL generation and it can produce mo
*** 25522,25535 ****
  
       Usually these statements prepare temporary registers for use as
       internal operands in the RTL template, but they can also generate
!      RTL insns directly by calling routines such as `emit_insn', etc.
       Any such insns precede the ones that come from the RTL template.
  
!    * Optionally, a vector containing the values of attributes. *Note
       Insn Attributes::.
  
!  Every RTL insn emitted by a `define_expand' must match some
! `define_insn' in the machine description.  Otherwise, the compiler will
  crash when trying to generate code for the insn or trying to optimize
  it.
  
--- 25138,25151 ----
  
       Usually these statements prepare temporary registers for use as
       internal operands in the RTL template, but they can also generate
!      RTL insns directly by calling routines such as 'emit_insn', etc.
       Any such insns precede the ones that come from the RTL template.
  
!    * Optionally, a vector containing the values of attributes.  *Note
       Insn Attributes::.
  
!  Every RTL insn emitted by a 'define_expand' must match some
! 'define_insn' in the machine description.  Otherwise, the compiler will
  crash when trying to generate code for the insn or trying to optimize
  it.
  
*************** also describes the operands that need to
*** 25538,25588 ****
  is used.  In particular, it gives a predicate for each operand.
  
   A true operand, which needs to be specified in order to generate RTL
! from the pattern, should be described with a `match_operand' in its
  first occurrence in the RTL template.  This enters information on the
  operand's predicate into the tables that record such things.  GCC uses
  the information to preload the operand into a register if that is
  required for valid RTL code.  If the operand is referred to more than
! once, subsequent references should use `match_dup'.
  
   The RTL template may also refer to internal "operands" which are
  temporary registers or labels used only within the sequence made by the
! `define_expand'.  Internal operands are substituted into the RTL
! template with `match_dup', never with `match_operand'.  The values of
  the internal operands are not passed in as arguments by the compiler
! when it requests use of this pattern.  Instead, they are computed
! within the pattern, in the preparation statements.  These statements
! compute the values and store them into the appropriate elements of
! `operands' so that `match_dup' can find them.
  
   There are two special macros defined for use in the preparation
! statements: `DONE' and `FAIL'.  Use them with a following semicolon, as
  a statement.
  
! `DONE'
!      Use the `DONE' macro to end RTL generation for the pattern.  The
       only RTL insns resulting from the pattern on this occasion will be
!      those already emitted by explicit calls to `emit_insn' within the
       preparation statements; the RTL template will not be generated.
  
! `FAIL'
       Make the pattern fail on this occasion.  When a pattern fails, it
       means that the pattern was not truly available.  The calling
       routines in the compiler will try other strategies for code
       generation using other patterns.
  
       Failure is currently supported only for binary (addition,
!      multiplication, shifting, etc.) and bit-field (`extv', `extzv',
!      and `insv') operations.
  
!  If the preparation falls through (invokes neither `DONE' nor `FAIL'),
! then the `define_expand' acts like a `define_insn' in that the RTL
  template is used to generate the insn.
  
   The RTL template is not used for matching, only for generating the
! initial insn list.  If the preparation statement always invokes `DONE'
! or `FAIL', the RTL template may be reduced to a simple list of
! operands, such as this example:
  
       (define_expand "addsi3"
         [(match_operand:SI 0 "register_operand" "")
--- 25154,25204 ----
  is used.  In particular, it gives a predicate for each operand.
  
   A true operand, which needs to be specified in order to generate RTL
! from the pattern, should be described with a 'match_operand' in its
  first occurrence in the RTL template.  This enters information on the
  operand's predicate into the tables that record such things.  GCC uses
  the information to preload the operand into a register if that is
  required for valid RTL code.  If the operand is referred to more than
! once, subsequent references should use 'match_dup'.
  
   The RTL template may also refer to internal "operands" which are
  temporary registers or labels used only within the sequence made by the
! 'define_expand'.  Internal operands are substituted into the RTL
! template with 'match_dup', never with 'match_operand'.  The values of
  the internal operands are not passed in as arguments by the compiler
! when it requests use of this pattern.  Instead, they are computed within
! the pattern, in the preparation statements.  These statements compute
! the values and store them into the appropriate elements of 'operands' so
! that 'match_dup' can find them.
  
   There are two special macros defined for use in the preparation
! statements: 'DONE' and 'FAIL'.  Use them with a following semicolon, as
  a statement.
  
! 'DONE'
!      Use the 'DONE' macro to end RTL generation for the pattern.  The
       only RTL insns resulting from the pattern on this occasion will be
!      those already emitted by explicit calls to 'emit_insn' within the
       preparation statements; the RTL template will not be generated.
  
! 'FAIL'
       Make the pattern fail on this occasion.  When a pattern fails, it
       means that the pattern was not truly available.  The calling
       routines in the compiler will try other strategies for code
       generation using other patterns.
  
       Failure is currently supported only for binary (addition,
!      multiplication, shifting, etc.)  and bit-field ('extv', 'extzv',
!      and 'insv') operations.
  
!  If the preparation falls through (invokes neither 'DONE' nor 'FAIL'),
! then the 'define_expand' acts like a 'define_insn' in that the RTL
  template is used to generate the insn.
  
   The RTL template is not used for matching, only for generating the
! initial insn list.  If the preparation statement always invokes 'DONE'
! or 'FAIL', the RTL template may be reduced to a simple list of operands,
! such as this example:
  
       (define_expand "addsi3"
         [(match_operand:SI 0 "register_operand" "")
*************** operands, such as this example:
*** 25611,25626 ****
           FAIL;
       }")
  
! This example uses `define_expand' so that it can generate an RTL insn
  for shifting when the shift-count is in the supported range of 0 to 3
  but fail in other cases where machine insns aren't available.  When it
  fails, the compiler tries another strategy using different patterns
  (such as, a library call).
  
   If the compiler were able to handle nontrivial condition-strings in
! patterns with names, then it would be possible to use a `define_insn'
! in that case.  Here is another case (zero-extension on the 68000) which
! makes more use of the power of `define_expand':
  
       (define_expand "zero_extendhisi2"
         [(set (match_operand:SI 0 "general_operand" "")
--- 25227,25242 ----
           FAIL;
       }")
  
! This example uses 'define_expand' so that it can generate an RTL insn
  for shifting when the shift-count is in the supported range of 0 to 3
  but fail in other cases where machine insns aren't available.  When it
  fails, the compiler tries another strategy using different patterns
  (such as, a library call).
  
   If the compiler were able to handle nontrivial condition-strings in
! patterns with names, then it would be possible to use a 'define_insn' in
! that case.  Here is another case (zero-extension on the 68000) which
! makes more use of the power of 'define_expand':
  
       (define_expand "zero_extendhisi2"
         [(set (match_operand:SI 0 "general_operand" "")
*************** Here two RTL insns are generated, one to
*** 25637,25652 ****
  and the other to copy the input operand into its low half.  This
  sequence is incorrect if the input operand refers to [the old value of]
  the output operand, so the preparation statement makes sure this isn't
! so.  The function `make_safe_from' copies the `operands[1]' into a
! temporary register if it refers to `operands[0]'.  It does this by
  emitting another RTL insn.
  
   Finally, a third example shows the use of an internal operand.
! Zero-extension on the SPUR chip is done by `and'-ing the result against
! a halfword mask.  But this mask cannot be represented by a `const_int'
  because the constant value is too large to be legitimate on this
! machine.  So it must be copied into a register with `force_reg' and
! then the register used in the `and'.
  
       (define_expand "zero_extendhisi2"
         [(set (match_operand:SI 0 "register_operand" "")
--- 25253,25268 ----
  and the other to copy the input operand into its low half.  This
  sequence is incorrect if the input operand refers to [the old value of]
  the output operand, so the preparation statement makes sure this isn't
! so.  The function 'make_safe_from' copies the 'operands[1]' into a
! temporary register if it refers to 'operands[0]'.  It does this by
  emitting another RTL insn.
  
   Finally, a third example shows the use of an internal operand.
! Zero-extension on the SPUR chip is done by 'and'-ing the result against
! a halfword mask.  But this mask cannot be represented by a 'const_int'
  because the constant value is too large to be legitimate on this
! machine.  So it must be copied into a register with 'force_reg' and then
! the register used in the 'and'.
  
       (define_expand "zero_extendhisi2"
         [(set (match_operand:SI 0 "register_operand" "")
*************** then the register used in the `and'.
*** 25658,25667 ****
         "operands[2]
            = force_reg (SImode, GEN_INT (65535)); ")
  
!  _Note:_ If the `define_expand' is used to serve a standard binary or
  unary arithmetic operation or a bit-field operation, then the last insn
! it generates must not be a `code_label', `barrier' or `note'.  It must
! be an `insn', `jump_insn' or `call_insn'.  If you don't need a real insn
  at the end, emit an insn to copy the result of the operation into
  itself.  Such an insn will generate no code, but it can avoid problems
  in the compiler.
--- 25274,25283 ----
         "operands[2]
            = force_reg (SImode, GEN_INT (65535)); ")
  
!  _Note:_ If the 'define_expand' is used to serve a standard binary or
  unary arithmetic operation or a bit-field operation, then the last insn
! it generates must not be a 'code_label', 'barrier' or 'note'.  It must
! be an 'insn', 'jump_insn' or 'call_insn'.  If you don't need a real insn
  at the end, emit an insn to copy the result of the operation into
  itself.  Such an insn will generate no code, but it can avoid problems
  in the compiler.
*************** File: gccint.info,  Node: Insn Splitting
*** 25672,25683 ****
  16.16 Defining How to Split Instructions
  ========================================
  
! There are two cases where you should specify how to split a pattern
! into multiple insns.  On machines that have instructions requiring
! delay slots (*note Delay Slots::) or that have instructions whose
! output is not available for multiple cycles (*note Processor pipeline
! description::), the compiler phases that optimize these cases need to
! be able to move insns into one-instruction delay slots.  However, some
  insns may generate more than one machine instruction.  These insns
  cannot be placed into a delay slot.
  
--- 25288,25299 ----
  16.16 Defining How to Split Instructions
  ========================================
  
! There are two cases where you should specify how to split a pattern into
! multiple insns.  On machines that have instructions requiring delay
! slots (*note Delay Slots::) or that have instructions whose output is
! not available for multiple cycles (*note Processor pipeline
! description::), the compiler phases that optimize these cases need to be
! able to move insns into one-instruction delay slots.  However, some
  insns may generate more than one machine instruction.  These insns
  cannot be placed into a delay slot.
  
*************** scheduling.
*** 25691,25705 ****
  
   The insn combiner phase also splits putative insns.  If three insns are
  merged into one insn with a complex expression that cannot be matched by
! some `define_insn' pattern, the combiner phase attempts to split the
  complex pattern into two insns that are recognized.  Usually it can
  break the complex pattern into two patterns by splitting out some
  subexpression.  However, in some other cases, such as performing an
  addition of a large constant in two insns on a RISC machine, the way to
  split the addition into two insns is machine-dependent.
  
!  The `define_split' definition tells the compiler how to split a
! complex insn into several simpler insns.  It looks like this:
  
       (define_split
         [INSN-PATTERN]
--- 25307,25321 ----
  
   The insn combiner phase also splits putative insns.  If three insns are
  merged into one insn with a complex expression that cannot be matched by
! some 'define_insn' pattern, the combiner phase attempts to split the
  complex pattern into two insns that are recognized.  Usually it can
  break the complex pattern into two patterns by splitting out some
  subexpression.  However, in some other cases, such as performing an
  addition of a large constant in two insns on a RISC machine, the way to
  split the addition into two insns is machine-dependent.
  
!  The 'define_split' definition tells the compiler how to split a complex
! insn into several simpler insns.  It looks like this:
  
       (define_split
         [INSN-PATTERN]
*************** complex insn into several simpler insns.
*** 25710,25740 ****
         "PREPARATION-STATEMENTS")
  
   INSN-PATTERN is a pattern that needs to be split and CONDITION is the
! final condition to be tested, as in a `define_insn'.  When an insn
  matching INSN-PATTERN and satisfying CONDITION is found, it is replaced
  in the insn list with the insns given by NEW-INSN-PATTERN-1,
  NEW-INSN-PATTERN-2, etc.
  
   The PREPARATION-STATEMENTS are similar to those statements that are
! specified for `define_expand' (*note Expander Definitions::) and are
  executed before the new RTL is generated to prepare for the generated
  code or emit some insns whose pattern is not fixed.  Unlike those in
! `define_expand', however, these statements must not generate any new
  pseudo-registers.  Once reload has completed, they also must not
  allocate any space in the stack frame.
  
   Patterns are matched against INSN-PATTERN in two different
  circumstances.  If an insn needs to be split for delay slot scheduling
  or insn scheduling, the insn is already known to be valid, which means
! that it must have been matched by some `define_insn' and, if
! `reload_completed' is nonzero, is known to satisfy the constraints of
! that `define_insn'.  In that case, the new insn patterns must also be
! insns that are matched by some `define_insn' and, if `reload_completed'
  is nonzero, must also satisfy the constraints of those definitions.
  
!  As an example of this usage of `define_split', consider the following
! example from `a29k.md', which splits a `sign_extend' from `HImode' to
! `SImode' into a pair of shift insns:
  
       (define_split
         [(set (match_operand:SI 0 "gen_reg_operand" "")
--- 25326,25356 ----
         "PREPARATION-STATEMENTS")
  
   INSN-PATTERN is a pattern that needs to be split and CONDITION is the
! final condition to be tested, as in a 'define_insn'.  When an insn
  matching INSN-PATTERN and satisfying CONDITION is found, it is replaced
  in the insn list with the insns given by NEW-INSN-PATTERN-1,
  NEW-INSN-PATTERN-2, etc.
  
   The PREPARATION-STATEMENTS are similar to those statements that are
! specified for 'define_expand' (*note Expander Definitions::) and are
  executed before the new RTL is generated to prepare for the generated
  code or emit some insns whose pattern is not fixed.  Unlike those in
! 'define_expand', however, these statements must not generate any new
  pseudo-registers.  Once reload has completed, they also must not
  allocate any space in the stack frame.
  
   Patterns are matched against INSN-PATTERN in two different
  circumstances.  If an insn needs to be split for delay slot scheduling
  or insn scheduling, the insn is already known to be valid, which means
! that it must have been matched by some 'define_insn' and, if
! 'reload_completed' is nonzero, is known to satisfy the constraints of
! that 'define_insn'.  In that case, the new insn patterns must also be
! insns that are matched by some 'define_insn' and, if 'reload_completed'
  is nonzero, must also satisfy the constraints of those definitions.
  
!  As an example of this usage of 'define_split', consider the following
! example from 'a29k.md', which splits a 'sign_extend' from 'HImode' to
! 'SImode' into a pair of shift insns:
  
       (define_split
         [(set (match_operand:SI 0 "gen_reg_operand" "")
*************** example from `a29k.md', which splits a `
*** 25750,25767 ****
       { operands[1] = gen_lowpart (SImode, operands[1]); }")
  
   When the combiner phase tries to split an insn pattern, it is always
! the case that the pattern is _not_ matched by any `define_insn'.  The
! combiner pass first tries to split a single `set' expression and then
! the same `set' expression inside a `parallel', but followed by a
! `clobber' of a pseudo-reg to use as a scratch register.  In these
! cases, the combiner expects exactly two new insn patterns to be
! generated.  It will verify that these patterns match some `define_insn'
! definitions, so you need not do this test in the `define_split' (of
! course, there is no point in writing a `define_split' that will never
! produce insns that match).
  
!  Here is an example of this use of `define_split', taken from
! `rs6000.md':
  
       (define_split
         [(set (match_operand:SI 0 "gen_reg_operand" "")
--- 25366,25383 ----
       { operands[1] = gen_lowpart (SImode, operands[1]); }")
  
   When the combiner phase tries to split an insn pattern, it is always
! the case that the pattern is _not_ matched by any 'define_insn'.  The
! combiner pass first tries to split a single 'set' expression and then
! the same 'set' expression inside a 'parallel', but followed by a
! 'clobber' of a pseudo-reg to use as a scratch register.  In these cases,
! the combiner expects exactly two new insn patterns to be generated.  It
! will verify that these patterns match some 'define_insn' definitions, so
! you need not do this test in the 'define_split' (of course, there is no
! point in writing a 'define_split' that will never produce insns that
! match).
  
!  Here is an example of this use of 'define_split', taken from
! 'rs6000.md':
  
       (define_split
         [(set (match_operand:SI 0 "gen_reg_operand" "")
*************** produce insns that match).
*** 25782,25791 ****
         operands[4] = GEN_INT (low);
       }")
  
!  Here the predicate `non_add_cint_operand' matches any `const_int' that
! is _not_ a valid operand of a single add insn.  The add with the
! smaller displacement is written so that it can be substituted into the
! address of a subsequent operation.
  
   An example that uses a scratch register, from the same file, generates
  an equality comparison of a register and a large constant:
--- 25398,25407 ----
         operands[4] = GEN_INT (low);
       }")
  
!  Here the predicate 'non_add_cint_operand' matches any 'const_int' that
! is _not_ a valid operand of a single add insn.  The add with the smaller
! displacement is written so that it can be substituted into the address
! of a subsequent operation.
  
   An example that uses a scratch register, from the same file, generates
  an equality comparison of a register and a large constant:
*************** an equality comparison of a register and
*** 25814,25822 ****
         operands[5] = GEN_INT (sextc);
       }")
  
!  To avoid confusion, don't write a single `define_split' that accepts
! some insns that match some `define_insn' as well as some insns that
! don't.  Instead, write two separate `define_split' definitions, one for
  the insns that are valid and one for the insns that are not valid.
  
   The splitter is allowed to split jump instructions into sequence of
--- 25430,25438 ----
         operands[5] = GEN_INT (sextc);
       }")
  
!  To avoid confusion, don't write a single 'define_split' that accepts
! some insns that match some 'define_insn' as well as some insns that
! don't.  Instead, write two separate 'define_split' definitions, one for
  the insns that are valid and one for the insns that are not valid.
  
   The splitter is allowed to split jump instructions into sequence of
*************** instruction is always valid, as compiler
*** 25829,25844 ****
  new jump.  When new sequence contains multiple jump instructions or new
  labels, more assistance is needed.  Splitter is required to create only
  unconditional jumps, or simple conditional jump instructions.
! Additionally it must attach a `REG_BR_PROB' note to each conditional
! jump.  A global variable `split_branch_probability' holds the
  probability of the original branch in case it was a simple conditional
  jump, -1 otherwise.  To simplify recomputing of edge frequencies, the
! new sequence is required to have only forward jumps to the newly
! created labels.
  
!  For the common case where the pattern of a define_split exactly
! matches the pattern of a define_insn, use `define_insn_and_split'.  It
! looks like this:
  
       (define_insn_and_split
         [INSN-PATTERN]
--- 25445,25460 ----
  new jump.  When new sequence contains multiple jump instructions or new
  labels, more assistance is needed.  Splitter is required to create only
  unconditional jumps, or simple conditional jump instructions.
! Additionally it must attach a 'REG_BR_PROB' note to each conditional
! jump.  A global variable 'split_branch_probability' holds the
  probability of the original branch in case it was a simple conditional
  jump, -1 otherwise.  To simplify recomputing of edge frequencies, the
! new sequence is required to have only forward jumps to the newly created
! labels.
  
!  For the common case where the pattern of a define_split exactly matches
! the pattern of a define_insn, use 'define_insn_and_split'.  It looks
! like this:
  
       (define_insn_and_split
         [INSN-PATTERN]
*************** looks like this:
*** 25851,25861 ****
         "PREPARATION-STATEMENTS"
         [INSN-ATTRIBUTES])
  
   INSN-PATTERN, CONDITION, OUTPUT-TEMPLATE, and INSN-ATTRIBUTES are used
! as in `define_insn'.  The NEW-INSN-PATTERN vector and the
! PREPARATION-STATEMENTS are used as in a `define_split'.  The
! SPLIT-CONDITION is also used as in `define_split', with the additional
! behavior that if the condition starts with `&&', the condition used for
  the split will be the constructed as a logical "and" of the split
  condition with the insn condition.  For example, from i386.md:
  
--- 25467,25478 ----
         "PREPARATION-STATEMENTS"
         [INSN-ATTRIBUTES])
  
+ 
   INSN-PATTERN, CONDITION, OUTPUT-TEMPLATE, and INSN-ATTRIBUTES are used
! as in 'define_insn'.  The NEW-INSN-PATTERN vector and the
! PREPARATION-STATEMENTS are used as in a 'define_split'.  The
! SPLIT-CONDITION is also used as in 'define_split', with the additional
! behavior that if the condition starts with '&&', the condition used for
  the split will be the constructed as a logical "and" of the split
  condition with the insn condition.  For example, from i386.md:
  
*************** condition with the insn condition.  For
*** 25872,25884 ****
         ""
         [(set_attr "type" "alu1")])
  
   In this case, the actual split condition will be
! `TARGET_ZERO_EXTEND_WITH_AND && !optimize_size && reload_completed'.
  
!  The `define_insn_and_split' construction provides exactly the same
! functionality as two separate `define_insn' and `define_split'
! patterns.  It exists for compactness, and as a maintenance tool to
! prevent having to ensure the two patterns' templates match.
  
  
  File: gccint.info,  Node: Including Patterns,  Next: Peephole Definitions,  Prev: Insn Splitting,  Up: Machine Desc
--- 25489,25502 ----
         ""
         [(set_attr "type" "alu1")])
  
+ 
   In this case, the actual split condition will be
! 'TARGET_ZERO_EXTEND_WITH_AND && !optimize_size && reload_completed'.
  
!  The 'define_insn_and_split' construction provides exactly the same
! functionality as two separate 'define_insn' and 'define_split' patterns.
! It exists for compactness, and as a maintenance tool to prevent having
! to ensure the two patterns' templates match.
  
  
  File: gccint.info,  Node: Including Patterns,  Next: Peephole Definitions,  Prev: Insn Splitting,  Up: Machine Desc
*************** File: gccint.info,  Node: Including Patt
*** 25886,25893 ****
  16.17 Including Patterns in Machine Descriptions.
  =================================================
  
! The `include' pattern tells the compiler tools where to look for
! patterns that are in files other than in the file `.md'.  This is used
  only at build time and there is no preprocessing allowed.
  
   It looks like:
--- 25504,25511 ----
  16.17 Including Patterns in Machine Descriptions.
  =================================================
  
! The 'include' pattern tells the compiler tools where to look for
! patterns that are in files other than in the file '.md'.  This is used
  only at build time and there is no preprocessing allowed.
  
   It looks like:
*************** only at build time and there is no prepr
*** 25901,25909 ****
  
       (include "filestuff")
  
   Where PATHNAME is a string that specifies the location of the file,
! specifies the include file to be in `gcc/config/target/filestuff'.  The
! directory `gcc/config/target' is regarded as the default directory.
  
   Machine descriptions may be split up into smaller more manageable
  subsections and placed into subdirectories.
--- 25519,25528 ----
  
       (include "filestuff")
  
+ 
   Where PATHNAME is a string that specifies the location of the file,
! specifies the include file to be in 'gcc/config/target/filestuff'.  The
! directory 'gcc/config/target' is regarded as the default directory.
  
   Machine descriptions may be split up into smaller more manageable
  subsections and placed into subdirectories.
*************** subsections and placed into subdirectori
*** 25913,25940 ****
  
       (include "BOGUS/filestuff")
  
   the include file is specified to be in
! `gcc/config/TARGET/BOGUS/filestuff'.
  
   Specifying an absolute path for the include file such as;
  
       (include "/u2/BOGUS/filestuff")
   is permitted but is not encouraged.
  
  16.17.1 RTL Generation Tool Options for Directory Search
  --------------------------------------------------------
  
! The `-IDIR' option specifies directories to search for machine
  descriptions.  For example:
  
  
       genrecog -I/p1/abc/proc1 -I/p2/abcd/pro2 target.md
  
   Add the directory DIR to the head of the list of directories to be
  searched for header files.  This can be used to override a system
  machine definition file, substituting your own version, since these
  directories are searched before the default machine description file
! directories.  If you use more than one `-I' option, the directories are
  scanned in left-to-right order; the standard default directory come
  after.
  
--- 25532,25562 ----
  
       (include "BOGUS/filestuff")
  
+ 
   the include file is specified to be in
! 'gcc/config/TARGET/BOGUS/filestuff'.
  
   Specifying an absolute path for the include file such as;
  
       (include "/u2/BOGUS/filestuff")
+ 
   is permitted but is not encouraged.
  
  16.17.1 RTL Generation Tool Options for Directory Search
  --------------------------------------------------------
  
! The '-IDIR' option specifies directories to search for machine
  descriptions.  For example:
  
  
       genrecog -I/p1/abc/proc1 -I/p2/abcd/pro2 target.md
  
+ 
   Add the directory DIR to the head of the list of directories to be
  searched for header files.  This can be used to override a system
  machine definition file, substituting your own version, since these
  directories are searched before the default machine description file
! directories.  If you use more than one '-I' option, the directories are
  scanned in left-to-right order; the standard default directory come
  after.
  
*************** File: gccint.info,  Node: Peephole Defin
*** 25944,25950 ****
  16.18 Machine-Specific Peephole Optimizers
  ==========================================
  
! In addition to instruction patterns the `md' file may contain
  definitions of machine-specific peephole optimizations.
  
   The combiner does not notice certain peephole optimizations when the
--- 25566,25572 ----
  16.18 Machine-Specific Peephole Optimizers
  ==========================================
  
! In addition to instruction patterns the 'md' file may contain
  definitions of machine-specific peephole optimizations.
  
   The combiner does not notice certain peephole optimizations when the
*************** computed in the first one.  A machine-sp
*** 25955,25966 ****
  detect such opportunities.
  
   There are two forms of peephole definitions that may be used.  The
! original `define_peephole' is run at assembly output time to match
! insns and substitute assembly text.  Use of `define_peephole' is
! deprecated.
  
!  A newer `define_peephole2' matches insns and substitutes new insns.
! The `peephole2' pass is run after register allocation but before
  scheduling, which may result in much better code for targets that do
  scheduling.
  
--- 25577,25587 ----
  detect such opportunities.
  
   There are two forms of peephole definitions that may be used.  The
! original 'define_peephole' is run at assembly output time to match insns
! and substitute assembly text.  Use of 'define_peephole' is deprecated.
  
!  A newer 'define_peephole2' matches insns and substitutes new insns.
! The 'peephole2' pass is run after register allocation but before
  scheduling, which may result in much better code for targets that do
  scheduling.
  
*************** A definition looks like this:
*** 25987,25993 ****
  
  The last string operand may be omitted if you are not using any
  machine-specific information in this machine description.  If present,
! it must obey the same rules as in a `define_insn'.
  
   In this skeleton, INSN-PATTERN-1 and so on are patterns to match
  consecutive insns.  The optimization applies to a sequence of insns when
--- 25608,25614 ----
  
  The last string operand may be omitted if you are not using any
  machine-specific information in this machine description.  If present,
! it must obey the same rules as in a 'define_insn'.
  
   In this skeleton, INSN-PATTERN-1 and so on are patterns to match
  consecutive insns.  The optimization applies to a sequence of insns when
*************** INSN-PATTERN-1 matches the first one, IN
*** 25995,26017 ****
  and so on.
  
   Each of the insns matched by a peephole must also match a
! `define_insn'.  Peepholes are checked only at the last stage just
! before code generation, and only optionally.  Therefore, any insn which
! would match a peephole but no `define_insn' will cause a crash in code
  generation in an unoptimized compilation, or at various optimization
  stages.
  
!  The operands of the insns are matched with `match_operands',
! `match_operator', and `match_dup', as usual.  What is not usual is that
  the operand numbers apply to all the insn patterns in the definition.
  So, you can check for identical operands in two insns by using
! `match_operand' in one insn and `match_dup' in the other.
  
!  The operand constraints used in `match_operand' patterns do not have
! any direct effect on the applicability of the peephole, but they will
! be validated afterward, so make sure your constraints are general enough
! to apply whenever the peephole matches.  If the peephole matches but
! the constraints are not satisfied, the compiler will crash.
  
   It is safe to omit constraints in all the operands of the peephole; or
  you can write constraints which serve as a double-check on the criteria
--- 25616,25638 ----
  and so on.
  
   Each of the insns matched by a peephole must also match a
! 'define_insn'.  Peepholes are checked only at the last stage just before
! code generation, and only optionally.  Therefore, any insn which would
! match a peephole but no 'define_insn' will cause a crash in code
  generation in an unoptimized compilation, or at various optimization
  stages.
  
!  The operands of the insns are matched with 'match_operands',
! 'match_operator', and 'match_dup', as usual.  What is not usual is that
  the operand numbers apply to all the insn patterns in the definition.
  So, you can check for identical operands in two insns by using
! 'match_operand' in one insn and 'match_dup' in the other.
  
!  The operand constraints used in 'match_operand' patterns do not have
! any direct effect on the applicability of the peephole, but they will be
! validated afterward, so make sure your constraints are general enough to
! apply whenever the peephole matches.  If the peephole matches but the
! constraints are not satisfied, the compiler will crash.
  
   It is safe to omit constraints in all the operands of the peephole; or
  you can write constraints which serve as a double-check on the criteria
*************** allocation is complete.  Therefore, the
*** 26029,26050 ****
  which operands have ended up in which kinds of registers, just by
  looking at the operands.
  
!  The way to refer to the operands in CONDITION is to write
! `operands[I]' for operand number I (as matched by `(match_operand I
! ...)').  Use the variable `insn' to refer to the last of the insns
! being matched; use `prev_active_insn' to find the preceding insns.
  
   When optimizing computations with intermediate results, you can use
  CONDITION to match only when the intermediate results are not used
! elsewhere.  Use the C expression `dead_or_set_p (INSN, OP)', where INSN
  is the insn in which you expect the value to be used for the last time
! (from the value of `insn', together with use of `prev_nonnote_insn'),
! and OP is the intermediate value (from `operands[I]').
  
   Applying the optimization means replacing the sequence of insns with
  one new insn.  The TEMPLATE controls ultimate output of assembler code
  for this combined insn.  It works exactly like the template of a
! `define_insn'.  Operand numbers in this template are the same ones used
  in matching the original sequence of insns.
  
   The result of a defined peephole optimizer does not need to match any
--- 25650,25671 ----
  which operands have ended up in which kinds of registers, just by
  looking at the operands.
  
!  The way to refer to the operands in CONDITION is to write 'operands[I]'
! for operand number I (as matched by '(match_operand I ...)').  Use the
! variable 'insn' to refer to the last of the insns being matched; use
! 'prev_active_insn' to find the preceding insns.
  
   When optimizing computations with intermediate results, you can use
  CONDITION to match only when the intermediate results are not used
! elsewhere.  Use the C expression 'dead_or_set_p (INSN, OP)', where INSN
  is the insn in which you expect the value to be used for the last time
! (from the value of 'insn', together with use of 'prev_nonnote_insn'),
! and OP is the intermediate value (from 'operands[I]').
  
   Applying the optimization means replacing the sequence of insns with
  one new insn.  The TEMPLATE controls ultimate output of assembler code
  for this combined insn.  It works exactly like the template of a
! 'define_insn'.  Operand numbers in this template are the same ones used
  in matching the original sequence of insns.
  
   The result of a defined peephole optimizer does not need to match any
*************** into
*** 26092,26105 ****
       fmoved sp@+,fp0
  
   INSN-PATTERN-1 and so on look _almost_ like the second operand of
! `define_insn'.  There is one important difference: the second operand
! of `define_insn' consists of one or more RTX's enclosed in square
! brackets.  Usually, there is only one: then the same action can be
! written as an element of a `define_peephole'.  But when there are
! multiple actions in a `define_insn', they are implicitly enclosed in a
! `parallel'.  Then you must explicitly write the `parallel', and the
! square brackets within it, in the `define_peephole'.  Thus, if an insn
! pattern looks like this,
  
       (define_insn "divmodsi4"
         [(set (match_operand:SI 0 "general_operand" "=d")
--- 25713,25725 ----
       fmoved sp@+,fp0
  
   INSN-PATTERN-1 and so on look _almost_ like the second operand of
! 'define_insn'.  There is one important difference: the second operand of
! 'define_insn' consists of one or more RTX's enclosed in square brackets.
! Usually, there is only one: then the same action can be written as an
! element of a 'define_peephole'.  But when there are multiple actions in
! a 'define_insn', they are implicitly enclosed in a 'parallel'.  Then you
! must explicitly write the 'parallel', and the square brackets within it,
! in the 'define_peephole'.  Thus, if an insn pattern looks like this,
  
       (define_insn "divmodsi4"
         [(set (match_operand:SI 0 "general_operand" "=d")
*************** File: gccint.info,  Node: define_peephol
*** 26129,26135 ****
  16.18.2 RTL to RTL Peephole Optimizers
  --------------------------------------
  
! The `define_peephole2' definition tells the compiler how to substitute
  one sequence of instructions for another sequence, what additional
  scratch registers may be needed and what their lifetimes must be.
  
--- 25749,25755 ----
  16.18.2 RTL to RTL Peephole Optimizers
  --------------------------------------
  
! The 'define_peephole2' definition tells the compiler how to substitute
  one sequence of instructions for another sequence, what additional
  scratch registers may be needed and what their lifetimes must be.
  
*************** scratch registers may be needed and what
*** 26143,26149 ****
          ...]
         "PREPARATION-STATEMENTS")
  
!  The definition is almost identical to `define_split' (*note Insn
  Splitting::) except that the pattern to match is not a single
  instruction, but a sequence of instructions.
  
--- 25763,25769 ----
          ...]
         "PREPARATION-STATEMENTS")
  
!  The definition is almost identical to 'define_split' (*note Insn
  Splitting::) except that the pattern to match is not a single
  instruction, but a sequence of instructions.
  
*************** instruction, but a sequence of instructi
*** 26151,26160 ****
  output template.  If appropriate registers are not free, the pattern
  will simply not match.
  
!  Scratch registers are requested with a `match_scratch' pattern at the
  top level of the input pattern.  The allocated register (initially) will
  be dead at the point requested within the original sequence.  If the
! scratch is used at more than a single point, a `match_dup' pattern at
  the top level of the input pattern marks the last position in the input
  sequence at which the register must be available.
  
--- 25771,25780 ----
  output template.  If appropriate registers are not free, the pattern
  will simply not match.
  
!  Scratch registers are requested with a 'match_scratch' pattern at the
  top level of the input pattern.  The allocated register (initially) will
  be dead at the point requested within the original sequence.  If the
! scratch is used at more than a single point, a 'match_dup' pattern at
  the top level of the input pattern marks the last position in the input
  sequence at which the register must be available.
  
*************** sequence at which the register must be a
*** 26176,26182 ****
  
  This pattern tries to split a load from its use in the hopes that we'll
  be able to schedule around the memory load latency.  It allocates a
! single `SImode' register of class `GENERAL_REGS' (`"r"') that needs to
  be live only at the point just before the arithmetic.
  
   A real example requiring extended scratch lifetimes is harder to come
--- 25796,25802 ----
  
  This pattern tries to split a load from its use in the hopes that we'll
  be able to schedule around the memory load latency.  It allocates a
! single 'SImode' register of class 'GENERAL_REGS' ('"r"') that needs to
  be live only at the point just before the arithmetic.
  
   A real example requiring extended scratch lifetimes is harder to come
*************** by, so here's a silly made-up example:
*** 26195,26203 ****
          (set (match_dup 3) (match_dup 4))]
         "")
  
! If we had not added the `(match_dup 4)' in the middle of the input
  sequence, it might have been the case that the register we chose at the
! beginning of the sequence is killed by the first or second `set'.
  
  
  File: gccint.info,  Node: Insn Attributes,  Next: Conditional Execution,  Prev: Peephole Definitions,  Up: Machine Desc
--- 25815,25823 ----
          (set (match_dup 3) (match_dup 4))]
         "")
  
! If we had not added the '(match_dup 4)' in the middle of the input
  sequence, it might have been the case that the register we chose at the
! beginning of the sequence is killed by the first or second 'set'.
  
  
  File: gccint.info,  Node: Insn Attributes,  Next: Conditional Execution,  Prev: Peephole Definitions,  Up: Machine Desc
*************** File: gccint.info,  Node: Insn Attribute
*** 26206,26216 ****
  ============================
  
  In addition to describing the instruction supported by the target
! machine, the `md' file also defines a group of "attributes" and a set of
  values for each.  Every generated insn is assigned a value for each
! attribute.  One possible attribute would be the effect that the insn
! has on the machine's condition code.  This attribute can then be used
! by `NOTICE_UPDATE_CC' to track the condition codes.
  
  * Menu:
  
--- 25826,25836 ----
  ============================
  
  In addition to describing the instruction supported by the target
! machine, the 'md' file also defines a group of "attributes" and a set of
  values for each.  Every generated insn is assigned a value for each
! attribute.  One possible attribute would be the effect that the insn has
! on the machine's condition code.  This attribute can then be used by
! 'NOTICE_UPDATE_CC' to track the condition codes.
  
  * Menu:
  
*************** File: gccint.info,  Node: Defining Attri
*** 26230,26321 ****
  16.19.1 Defining Attributes and their Values
  --------------------------------------------
  
! The `define_attr' expression is used to define each attribute required
  by the target machine.  It looks like:
  
       (define_attr NAME LIST-OF-VALUES DEFAULT)
  
   NAME is a string specifying the name of the attribute being defined.
  Some attributes are used in a special way by the rest of the compiler.
! The `enabled' attribute can be used to conditionally enable or disable
! insn alternatives (*note Disable Insn Alternatives::). The `predicable'
! attribute, together with a suitable `define_cond_exec' (*note
  Conditional Execution::), can be used to automatically generate
! conditional variants of instruction patterns. The `mnemonic' attribute
  can be used to check for the instruction mnemonic (*note Mnemonic
! Attribute::).  The compiler internally uses the names `ce_enabled' and
! `nonce_enabled', so they should not be used elsewhere as alternative
  names.
  
!  LIST-OF-VALUES is either a string that specifies a comma-separated
! list of values that can be assigned to the attribute, or a null string
! to indicate that the attribute takes numeric values.
  
   DEFAULT is an attribute expression that gives the value of this
  attribute for insns that match patterns whose definition does not
! include an explicit value for this attribute.  *Note Attr Example::,
! for more information on the handling of defaults.  *Note Constant
  Attributes::, for information on attributes that do not depend on any
  particular insn.
  
   For each defined attribute, a number of definitions are written to the
! `insn-attr.h' file.  For cases where an explicit set of values is
  specified for an attribute, the following are defined:
  
!    * A `#define' is written for the symbol `HAVE_ATTR_NAME'.
  
!    * An enumerated class is defined for `attr_NAME' with elements of
!      the form `UPPER-NAME_UPPER-VALUE' where the attribute name and
!      value are first converted to uppercase.
  
!    * A function `get_attr_NAME' is defined that is passed an insn and
       returns the attribute value for that insn.
  
!  For example, if the following is present in the `md' file:
  
       (define_attr "type" "branch,fp,load,store,arith" ...)
  
! the following lines will be written to the file `insn-attr.h'.
  
       #define HAVE_ATTR_type 1
       enum attr_type {TYPE_BRANCH, TYPE_FP, TYPE_LOAD,
                        TYPE_STORE, TYPE_ARITH};
       extern enum attr_type get_attr_type ();
  
!  If the attribute takes numeric values, no `enum' type will be defined
! and the function to obtain the attribute's value will return `int'.
  
   There are attributes which are tied to a specific meaning.  These
  attributes are not free to use for other purposes:
  
! `length'
!      The `length' attribute is used to calculate the length of emitted
       code chunks.  This is especially important when verifying branch
!      distances. *Note Insn Lengths::.
  
! `enabled'
!      The `enabled' attribute can be defined to prevent certain
       alternatives of an insn definition from being used during code
!      generation. *Note Disable Insn Alternatives::.
  
! `mnemonic'
!      The `mnemonic' attribute can be defined to implement instruction
!      specific checks in e.g. the pipeline description.  *Note Mnemonic
       Attribute::.
  
   For each of these special attributes, the corresponding
! `HAVE_ATTR_NAME' `#define' is also written when the attribute is not
! defined; in that case, it is defined as `0'.
  
   Another way of defining an attribute is to use:
  
       (define_enum_attr "ATTR" "ENUM" DEFAULT)
  
!  This works in just the same way as `define_attr', except that the list
  of values is taken from a separate enumeration called ENUM (*note
! define_enum::).  This form allows you to use the same list of values
! for several attributes without having to repeat the list each time.
! For example:
  
       (define_enum "processor" [
         model_a
--- 25850,25941 ----
  16.19.1 Defining Attributes and their Values
  --------------------------------------------
  
! The 'define_attr' expression is used to define each attribute required
  by the target machine.  It looks like:
  
       (define_attr NAME LIST-OF-VALUES DEFAULT)
  
   NAME is a string specifying the name of the attribute being defined.
  Some attributes are used in a special way by the rest of the compiler.
! The 'enabled' attribute can be used to conditionally enable or disable
! insn alternatives (*note Disable Insn Alternatives::).  The 'predicable'
! attribute, together with a suitable 'define_cond_exec' (*note
  Conditional Execution::), can be used to automatically generate
! conditional variants of instruction patterns.  The 'mnemonic' attribute
  can be used to check for the instruction mnemonic (*note Mnemonic
! Attribute::).  The compiler internally uses the names 'ce_enabled' and
! 'nonce_enabled', so they should not be used elsewhere as alternative
  names.
  
!  LIST-OF-VALUES is either a string that specifies a comma-separated list
! of values that can be assigned to the attribute, or a null string to
! indicate that the attribute takes numeric values.
  
   DEFAULT is an attribute expression that gives the value of this
  attribute for insns that match patterns whose definition does not
! include an explicit value for this attribute.  *Note Attr Example::, for
! more information on the handling of defaults.  *Note Constant
  Attributes::, for information on attributes that do not depend on any
  particular insn.
  
   For each defined attribute, a number of definitions are written to the
! 'insn-attr.h' file.  For cases where an explicit set of values is
  specified for an attribute, the following are defined:
  
!    * A '#define' is written for the symbol 'HAVE_ATTR_NAME'.
  
!    * An enumerated class is defined for 'attr_NAME' with elements of the
!      form 'UPPER-NAME_UPPER-VALUE' where the attribute name and value
!      are first converted to uppercase.
  
!    * A function 'get_attr_NAME' is defined that is passed an insn and
       returns the attribute value for that insn.
  
!  For example, if the following is present in the 'md' file:
  
       (define_attr "type" "branch,fp,load,store,arith" ...)
  
! the following lines will be written to the file 'insn-attr.h'.
  
       #define HAVE_ATTR_type 1
       enum attr_type {TYPE_BRANCH, TYPE_FP, TYPE_LOAD,
                        TYPE_STORE, TYPE_ARITH};
       extern enum attr_type get_attr_type ();
  
!  If the attribute takes numeric values, no 'enum' type will be defined
! and the function to obtain the attribute's value will return 'int'.
  
   There are attributes which are tied to a specific meaning.  These
  attributes are not free to use for other purposes:
  
! 'length'
!      The 'length' attribute is used to calculate the length of emitted
       code chunks.  This is especially important when verifying branch
!      distances.  *Note Insn Lengths::.
  
! 'enabled'
!      The 'enabled' attribute can be defined to prevent certain
       alternatives of an insn definition from being used during code
!      generation.  *Note Disable Insn Alternatives::.
  
! 'mnemonic'
!      The 'mnemonic' attribute can be defined to implement instruction
!      specific checks in e.g.  the pipeline description.  *Note Mnemonic
       Attribute::.
  
   For each of these special attributes, the corresponding
! 'HAVE_ATTR_NAME' '#define' is also written when the attribute is not
! defined; in that case, it is defined as '0'.
  
   Another way of defining an attribute is to use:
  
       (define_enum_attr "ATTR" "ENUM" DEFAULT)
  
!  This works in just the same way as 'define_attr', except that the list
  of values is taken from a separate enumeration called ENUM (*note
! define_enum::).  This form allows you to use the same list of values for
! several attributes without having to repeat the list each time.  For
! example:
  
       (define_enum "processor" [
         model_a
*************** For example:
*** 26334,26342 ****
       (define_attr "tune" "model_a,model_b,..."
         (const (symbol_ref "target_tune")))
  
!  but without duplicating the processor list.  The second example
! defines two separate C enums (`attr_arch' and `attr_tune') whereas the
! first defines a single C enum (`processor').
  
  
  File: gccint.info,  Node: Expressions,  Next: Tagging Insns,  Prev: Defining Attributes,  Up: Insn Attributes
--- 25954,25962 ----
       (define_attr "tune" "model_a,model_b,..."
         (const (symbol_ref "target_tune")))
  
!  but without duplicating the processor list.  The second example defines
! two separate C enums ('attr_arch' and 'attr_tune') whereas the first
! defines a single C enum ('processor').
  
  
  File: gccint.info,  Node: Expressions,  Next: Tagging Insns,  Prev: Defining Attributes,  Up: Insn Attributes
*************** RTL expressions used to define attribute
*** 26348,26457 ****
  plus a few specific to attribute definitions, to be discussed below.
  Attribute value expressions must have one of the following forms:
  
! `(const_int I)'
       The integer I specifies the value of a numeric attribute.  I must
       be non-negative.
  
       The value of a numeric attribute can be specified either with a
!      `const_int', or as an integer represented as a string in
!      `const_string', `eq_attr' (see below), `attr', `symbol_ref',
!      simple arithmetic expressions, and `set_attr' overrides on
!      specific instructions (*note Tagging Insns::).
  
! `(const_string VALUE)'
!      The string VALUE specifies a constant attribute value.  If VALUE
!      is specified as `"*"', it means that the default value of the
       attribute is to be used for the insn containing this expression.
!      `"*"' obviously cannot be used in the DEFAULT expression of a
!      `define_attr'.
  
       If the attribute whose value is being specified is numeric, VALUE
       must be a string containing a non-negative integer (normally
!      `const_int' would be used in this case).  Otherwise, it must
       contain one of the valid values for the attribute.
  
! `(if_then_else TEST TRUE-VALUE FALSE-VALUE)'
       TEST specifies an attribute test, whose format is defined below.
       The value of this expression is TRUE-VALUE if TEST is true,
       otherwise it is FALSE-VALUE.
  
! `(cond [TEST1 VALUE1 ...] DEFAULT)'
       The first operand of this expression is a vector containing an even
       number of expressions and consisting of pairs of TEST and VALUE
!      expressions.  The value of the `cond' expression is that of the
       VALUE corresponding to the first true TEST expression.  If none of
!      the TEST expressions are true, the value of the `cond' expression
       is that of the DEFAULT expression.
  
   TEST expressions can have one of the following forms:
  
! `(const_int I)'
       This test is true if I is nonzero and false otherwise.
  
! `(not TEST)'
! `(ior TEST1 TEST2)'
! `(and TEST1 TEST2)'
       These tests are true if the indicated logical function is true.
  
! `(match_operand:M N PRED CONSTRAINTS)'
!      This test is true if operand N of the insn whose attribute value
!      is being determined has mode M (this part of the test is ignored
!      if M is `VOIDmode') and the function specified by the string PRED
!      returns a nonzero value when passed operand N and mode M (this
!      part of the test is ignored if PRED is the null string).
  
       The CONSTRAINTS operand is ignored and should be the null string.
  
! `(match_test C-EXPR)'
       The test is true if C expression C-EXPR is true.  In non-constant
       attributes, C-EXPR has access to the following variables:
  
!     INSN
            The rtl instruction under test.
! 
!     WHICH_ALTERNATIVE
!           The `define_insn' alternative that INSN matches.  *Note
!           Output Statement::.
! 
!     OPERANDS
            An array of INSN's rtl operands.
  
!      C-EXPR behaves like the condition in a C `if' statement, so there
!      is no need to explicitly convert the expression into a boolean 0
!      or 1 value.  For example, the following two tests are equivalent:
  
            (match_test "x & 2")
            (match_test "(x & 2) != 0")
  
! `(le ARITH1 ARITH2)'
! `(leu ARITH1 ARITH2)'
! `(lt ARITH1 ARITH2)'
! `(ltu ARITH1 ARITH2)'
! `(gt ARITH1 ARITH2)'
! `(gtu ARITH1 ARITH2)'
! `(ge ARITH1 ARITH2)'
! `(geu ARITH1 ARITH2)'
! `(ne ARITH1 ARITH2)'
! `(eq ARITH1 ARITH2)'
       These tests are true if the indicated comparison of the two
       arithmetic expressions is true.  Arithmetic expressions are formed
!      with `plus', `minus', `mult', `div', `mod', `abs', `neg', `and',
!      `ior', `xor', `not', `ashift', `lshiftrt', and `ashiftrt'
       expressions.
  
!      `const_int' and `symbol_ref' are always valid terms (*note Insn
!      Lengths::,for additional forms).  `symbol_ref' is a string
!      denoting a C expression that yields an `int' when evaluated by the
!      `get_attr_...' routine.  It should normally be a global variable.
  
! `(eq_attr NAME VALUE)'
       NAME is a string specifying the name of an attribute.
  
       VALUE is a string that is either a valid value for attribute NAME,
!      a comma-separated list of values, or `!' followed by a value or
!      list.  If VALUE does not begin with a `!', this test is true if
!      the value of the NAME attribute of the current insn is in the list
!      specified by VALUE.  If VALUE begins with a `!', this test is true
       if the attribute's value is _not_ in the specified list.
  
       For example,
--- 25968,26075 ----
  plus a few specific to attribute definitions, to be discussed below.
  Attribute value expressions must have one of the following forms:
  
! '(const_int I)'
       The integer I specifies the value of a numeric attribute.  I must
       be non-negative.
  
       The value of a numeric attribute can be specified either with a
!      'const_int', or as an integer represented as a string in
!      'const_string', 'eq_attr' (see below), 'attr', 'symbol_ref', simple
!      arithmetic expressions, and 'set_attr' overrides on specific
!      instructions (*note Tagging Insns::).
  
! '(const_string VALUE)'
!      The string VALUE specifies a constant attribute value.  If VALUE is
!      specified as '"*"', it means that the default value of the
       attribute is to be used for the insn containing this expression.
!      '"*"' obviously cannot be used in the DEFAULT expression of a
!      'define_attr'.
  
       If the attribute whose value is being specified is numeric, VALUE
       must be a string containing a non-negative integer (normally
!      'const_int' would be used in this case).  Otherwise, it must
       contain one of the valid values for the attribute.
  
! '(if_then_else TEST TRUE-VALUE FALSE-VALUE)'
       TEST specifies an attribute test, whose format is defined below.
       The value of this expression is TRUE-VALUE if TEST is true,
       otherwise it is FALSE-VALUE.
  
! '(cond [TEST1 VALUE1 ...] DEFAULT)'
       The first operand of this expression is a vector containing an even
       number of expressions and consisting of pairs of TEST and VALUE
!      expressions.  The value of the 'cond' expression is that of the
       VALUE corresponding to the first true TEST expression.  If none of
!      the TEST expressions are true, the value of the 'cond' expression
       is that of the DEFAULT expression.
  
   TEST expressions can have one of the following forms:
  
! '(const_int I)'
       This test is true if I is nonzero and false otherwise.
  
! '(not TEST)'
! '(ior TEST1 TEST2)'
! '(and TEST1 TEST2)'
       These tests are true if the indicated logical function is true.
  
! '(match_operand:M N PRED CONSTRAINTS)'
!      This test is true if operand N of the insn whose attribute value is
!      being determined has mode M (this part of the test is ignored if M
!      is 'VOIDmode') and the function specified by the string PRED
!      returns a nonzero value when passed operand N and mode M (this part
!      of the test is ignored if PRED is the null string).
  
       The CONSTRAINTS operand is ignored and should be the null string.
  
! '(match_test C-EXPR)'
       The test is true if C expression C-EXPR is true.  In non-constant
       attributes, C-EXPR has access to the following variables:
  
!      INSN
            The rtl instruction under test.
!      WHICH_ALTERNATIVE
!           The 'define_insn' alternative that INSN matches.  *Note Output
!           Statement::.
!      OPERANDS
            An array of INSN's rtl operands.
  
!      C-EXPR behaves like the condition in a C 'if' statement, so there
!      is no need to explicitly convert the expression into a boolean 0 or
!      1 value.  For example, the following two tests are equivalent:
  
            (match_test "x & 2")
            (match_test "(x & 2) != 0")
  
! '(le ARITH1 ARITH2)'
! '(leu ARITH1 ARITH2)'
! '(lt ARITH1 ARITH2)'
! '(ltu ARITH1 ARITH2)'
! '(gt ARITH1 ARITH2)'
! '(gtu ARITH1 ARITH2)'
! '(ge ARITH1 ARITH2)'
! '(geu ARITH1 ARITH2)'
! '(ne ARITH1 ARITH2)'
! '(eq ARITH1 ARITH2)'
       These tests are true if the indicated comparison of the two
       arithmetic expressions is true.  Arithmetic expressions are formed
!      with 'plus', 'minus', 'mult', 'div', 'mod', 'abs', 'neg', 'and',
!      'ior', 'xor', 'not', 'ashift', 'lshiftrt', and 'ashiftrt'
       expressions.
  
!      'const_int' and 'symbol_ref' are always valid terms (*note Insn
!      Lengths::,for additional forms).  'symbol_ref' is a string denoting
!      a C expression that yields an 'int' when evaluated by the
!      'get_attr_...' routine.  It should normally be a global variable.
  
! '(eq_attr NAME VALUE)'
       NAME is a string specifying the name of an attribute.
  
       VALUE is a string that is either a valid value for attribute NAME,
!      a comma-separated list of values, or '!' followed by a value or
!      list.  If VALUE does not begin with a '!', this test is true if the
!      value of the NAME attribute of the current insn is in the list
!      specified by VALUE.  If VALUE begins with a '!', this test is true
       if the attribute's value is _not_ in the specified list.
  
       For example,
*************** Attribute value expressions must have on
*** 26462,26469 ****
  
            (ior (eq_attr "type" "load") (eq_attr "type" "store"))
  
!      If NAME specifies an attribute of `alternative', it refers to the
!      value of the compiler variable `which_alternative' (*note Output
       Statement::) and the values must be small integers.  For example,
  
            (eq_attr "alternative" "2,3")
--- 26080,26087 ----
  
            (ior (eq_attr "type" "load") (eq_attr "type" "store"))
  
!      If NAME specifies an attribute of 'alternative', it refers to the
!      value of the compiler variable 'which_alternative' (*note Output
       Statement::) and the values must be small integers.  For example,
  
            (eq_attr "alternative" "2,3")
*************** Attribute value expressions must have on
*** 26473,26494 ****
            (ior (eq (symbol_ref "which_alternative") (const_int 2))
                 (eq (symbol_ref "which_alternative") (const_int 3)))
  
!      Note that, for most attributes, an `eq_attr' test is simplified in
       cases where the value of the attribute being tested is known for
       all insns matching a particular pattern.  This is by far the most
       common case.
  
! `(attr_flag NAME)'
!      The value of an `attr_flag' expression is true if the flag
!      specified by NAME is true for the `insn' currently being scheduled.
  
       NAME is a string specifying one of a fixed set of flags to test.
!      Test the flags `forward' and `backward' to determine the direction
       of a conditional branch.
  
!      This example describes a conditional branch delay slot which can
!      be nullified for forward branches that are taken (annul-true) or
!      for backward branches which are not taken (annul-false).
  
            (define_delay (eq_attr "type" "cbranch")
              [(eq_attr "in_branch_delay" "true")
--- 26091,26112 ----
            (ior (eq (symbol_ref "which_alternative") (const_int 2))
                 (eq (symbol_ref "which_alternative") (const_int 3)))
  
!      Note that, for most attributes, an 'eq_attr' test is simplified in
       cases where the value of the attribute being tested is known for
       all insns matching a particular pattern.  This is by far the most
       common case.
  
! '(attr_flag NAME)'
!      The value of an 'attr_flag' expression is true if the flag
!      specified by NAME is true for the 'insn' currently being scheduled.
  
       NAME is a string specifying one of a fixed set of flags to test.
!      Test the flags 'forward' and 'backward' to determine the direction
       of a conditional branch.
  
!      This example describes a conditional branch delay slot which can be
!      nullified for forward branches that are taken (annul-true) or for
!      backward branches which are not taken (annul-false).
  
            (define_delay (eq_attr "type" "cbranch")
              [(eq_attr "in_branch_delay" "true")
*************** Attribute value expressions must have on
*** 26497,26511 ****
               (and (eq_attr "in_branch_delay" "true")
                    (attr_flag "backward"))])
  
!      The `forward' and `backward' flags are false if the current `insn'
       being scheduled is not a conditional branch.
  
!      `attr_flag' is only used during delay slot scheduling and has no
       meaning to other passes of the compiler.
  
! `(attr NAME)'
       The value of another attribute is returned.  This is most useful
!      for numeric attributes, as `eq_attr' and `attr_flag' produce more
       efficient code for non-numeric attributes.
  
  
--- 26115,26129 ----
               (and (eq_attr "in_branch_delay" "true")
                    (attr_flag "backward"))])
  
!      The 'forward' and 'backward' flags are false if the current 'insn'
       being scheduled is not a conditional branch.
  
!      'attr_flag' is only used during delay slot scheduling and has no
       meaning to other passes of the compiler.
  
! '(attr NAME)'
       The value of another attribute is returned.  This is most useful
!      for numeric attributes, as 'eq_attr' and 'attr_flag' produce more
       efficient code for non-numeric attributes.
  
  
*************** File: gccint.info,  Node: Tagging Insns,
*** 26515,26570 ****
  -------------------------------------------
  
  The value assigned to an attribute of an insn is primarily determined by
! which pattern is matched by that insn (or which `define_peephole'
! generated it).  Every `define_insn' and `define_peephole' can have an
  optional last argument to specify the values of attributes for matching
! insns.  The value of any attribute not specified in a particular insn
! is set to the default value for that attribute, as specified in its
! `define_attr'.  Extensive use of default values for attributes permits
  the specification of the values for only one or two attributes in the
  definition of most insn patterns, as seen in the example in the next
  section.
  
!  The optional last argument of `define_insn' and `define_peephole' is a
  vector of expressions, each of which defines the value for a single
! attribute.  The most general way of assigning an attribute's value is
! to use a `set' expression whose first operand is an `attr' expression
  giving the name of the attribute being set.  The second operand of the
! `set' is an attribute expression (*note Expressions::) giving the value
  of the attribute.
  
!  When the attribute value depends on the `alternative' attribute (i.e.,
  which is the applicable alternative in the constraint of the insn), the
! `set_attr_alternative' expression can be used.  It allows the
  specification of a vector of attribute expressions, one for each
  alternative.
  
   When the generality of arbitrary attribute expressions is not required,
! the simpler `set_attr' expression can be used, which allows specifying
! a string giving either a single attribute value or a list of attribute
  values, one for each alternative.
  
   The form of each of the above specifications is shown below.  In each
  case, NAME is a string specifying the attribute to be set.
  
! `(set_attr NAME VALUE-STRING)'
       VALUE-STRING is either a string giving the desired attribute value,
       or a string containing a comma-separated list giving the values for
       succeeding alternatives.  The number of elements must match the
       number of alternatives in the constraint of the insn pattern.
  
!      Note that it may be useful to specify `*' for some alternative, in
       which case the attribute will assume its default value for insns
       matching that alternative.
  
! `(set_attr_alternative NAME [VALUE1 VALUE2 ...])'
       Depending on the alternative of the insn, the value will be one of
!      the specified values.  This is a shorthand for using a `cond' with
!      tests on the `alternative' attribute.
  
! `(set (attr NAME) VALUE)'
!      The first operand of this `set' must be the special RTL expression
!      `attr', whose sole operand is a string giving the name of the
       attribute being set.  VALUE is the value of the attribute.
  
   The following shows three different ways of representing the same
--- 26133,26188 ----
  -------------------------------------------
  
  The value assigned to an attribute of an insn is primarily determined by
! which pattern is matched by that insn (or which 'define_peephole'
! generated it).  Every 'define_insn' and 'define_peephole' can have an
  optional last argument to specify the values of attributes for matching
! insns.  The value of any attribute not specified in a particular insn is
! set to the default value for that attribute, as specified in its
! 'define_attr'.  Extensive use of default values for attributes permits
  the specification of the values for only one or two attributes in the
  definition of most insn patterns, as seen in the example in the next
  section.
  
!  The optional last argument of 'define_insn' and 'define_peephole' is a
  vector of expressions, each of which defines the value for a single
! attribute.  The most general way of assigning an attribute's value is to
! use a 'set' expression whose first operand is an 'attr' expression
  giving the name of the attribute being set.  The second operand of the
! 'set' is an attribute expression (*note Expressions::) giving the value
  of the attribute.
  
!  When the attribute value depends on the 'alternative' attribute (i.e.,
  which is the applicable alternative in the constraint of the insn), the
! 'set_attr_alternative' expression can be used.  It allows the
  specification of a vector of attribute expressions, one for each
  alternative.
  
   When the generality of arbitrary attribute expressions is not required,
! the simpler 'set_attr' expression can be used, which allows specifying a
! string giving either a single attribute value or a list of attribute
  values, one for each alternative.
  
   The form of each of the above specifications is shown below.  In each
  case, NAME is a string specifying the attribute to be set.
  
! '(set_attr NAME VALUE-STRING)'
       VALUE-STRING is either a string giving the desired attribute value,
       or a string containing a comma-separated list giving the values for
       succeeding alternatives.  The number of elements must match the
       number of alternatives in the constraint of the insn pattern.
  
!      Note that it may be useful to specify '*' for some alternative, in
       which case the attribute will assume its default value for insns
       matching that alternative.
  
! '(set_attr_alternative NAME [VALUE1 VALUE2 ...])'
       Depending on the alternative of the insn, the value will be one of
!      the specified values.  This is a shorthand for using a 'cond' with
!      tests on the 'alternative' attribute.
  
! '(set (attr NAME) VALUE)'
!      The first operand of this 'set' must be the special RTL expression
!      'attr', whose sole operand is a string giving the name of the
       attribute being set.  VALUE is the value of the attribute.
  
   The following shows three different ways of representing the same
*************** attribute value specification:
*** 26581,26605 ****
                   (eq_attr "alternative" "2") (const_string "store")]
                  (const_string "arith")))
  
!  The `define_asm_attributes' expression provides a mechanism to specify
! the attributes assigned to insns produced from an `asm' statement.  It
  has the form:
  
       (define_asm_attributes [ATTR-SETS])
  
! where ATTR-SETS is specified the same as for both the `define_insn' and
! the `define_peephole' expressions.
  
   These values will typically be the "worst case" attribute values.  For
  example, they might indicate that the condition code will be clobbered.
  
!  A specification for a `length' attribute is handled specially.  The
! way to compute the length of an `asm' insn is to multiply the length
! specified in the expression `define_asm_attributes' by the number of
! machine instructions specified in the `asm' statement, determined by
  counting the number of semicolons and newlines in the string.
! Therefore, the value of the `length' attribute specified in a
! `define_asm_attributes' should be the maximum possible length of a
  single machine instruction.
  
  
--- 26199,26223 ----
                   (eq_attr "alternative" "2") (const_string "store")]
                  (const_string "arith")))
  
!  The 'define_asm_attributes' expression provides a mechanism to specify
! the attributes assigned to insns produced from an 'asm' statement.  It
  has the form:
  
       (define_asm_attributes [ATTR-SETS])
  
! where ATTR-SETS is specified the same as for both the 'define_insn' and
! the 'define_peephole' expressions.
  
   These values will typically be the "worst case" attribute values.  For
  example, they might indicate that the condition code will be clobbered.
  
!  A specification for a 'length' attribute is handled specially.  The way
! to compute the length of an 'asm' insn is to multiply the length
! specified in the expression 'define_asm_attributes' by the number of
! machine instructions specified in the 'asm' statement, determined by
  counting the number of semicolons and newlines in the string.
! Therefore, the value of the 'length' attribute specified in a
! 'define_asm_attributes' should be the maximum possible length of a
  single machine instruction.
  
  
*************** File: gccint.info,  Node: Attr Example,
*** 26610,26616 ****
  
  The judicious use of defaulting is important in the efficient use of
  insn attributes.  Typically, insns are divided into "types" and an
! attribute, customarily called `type', is used to represent this value.
  This attribute is normally used only to define the default value for
  other attributes.  An example will clarify this usage.
  
--- 26228,26234 ----
  
  The judicious use of defaulting is important in the efficient use of
  insn attributes.  Typically, insns are divided into "types" and an
! attribute, customarily called 'type', is used to represent this value.
  This attribute is normally used only to define the default value for
  other attributes.  An example will clarify this usage.
  
*************** operations, floating point operations, a
*** 26621,26632 ****
  
   Here we will concern ourselves with determining the effect of an insn
  on the condition code and will limit ourselves to the following possible
! effects:  The condition code can be set unpredictably (clobbered), not
! be changed, be set to agree with the results of the operation, or only
  changed if the item previously set into the condition code has been
  modified.
  
!  Here is part of a sample `md' file for such a machine:
  
       (define_attr "type" "load,store,arith,fp,branch" (const_string "arith"))
  
--- 26239,26250 ----
  
   Here we will concern ourselves with determining the effect of an insn
  on the condition code and will limit ourselves to the following possible
! effects: The condition code can be set unpredictably (clobbered), not be
! changed, be set to agree with the results of the operation, or only
  changed if the item previously set into the condition code has been
  modified.
  
!  Here is part of a sample 'md' file for such a machine:
  
       (define_attr "type" "load,store,arith,fp,branch" (const_string "arith"))
  
*************** File: gccint.info,  Node: Insn Lengths,
*** 26664,26714 ****
  
  For many machines, multiple types of branch instructions are provided,
  each for different length branch displacements.  In most cases, the
! assembler will choose the correct instruction to use.  However, when
! the assembler cannot do so, GCC can when a special attribute, the
! `length' attribute, is defined.  This attribute must be defined to have
! numeric values by specifying a null string in its `define_attr'.
  
!  In the case of the `length' attribute, two additional forms of
  arithmetic terms are allowed in test expressions:
  
! `(match_dup N)'
       This refers to the address of operand N of the current insn, which
!      must be a `label_ref'.
  
! `(pc)'
       For non-branch instructions and backward branch instructions, this
       refers to the address of the current insn.  But for forward branch
       instructions, this refers to the address of the next insn, because
       the length of the current insn is to be computed.
  
   For normal insns, the length will be determined by value of the
! `length' attribute.  In the case of `addr_vec' and `addr_diff_vec' insn
  patterns, the length is computed as the number of vectors multiplied by
  the size of each vector.
  
   Lengths are measured in addressable storage units (bytes).
  
!  Note that it is possible to call functions via the `symbol_ref'
  mechanism to compute the length of an insn.  However, if you use this
  mechanism you must provide dummy clauses to express the maximum length
! without using the function call.  You can an example of this in the
! `pa' machine description for the `call_symref' pattern.
  
   The following macros can be used to refine the length computation:
  
! `ADJUST_INSN_LENGTH (INSN, LENGTH)'
       If defined, modifies the length assigned to instruction INSN as a
       function of the context in which it is used.  LENGTH is an lvalue
       that contains the initially computed length of the insn and should
       be updated with the correct length of the insn.
  
       This macro will normally not be required.  A case in which it is
!      required is the ROMP.  On this machine, the size of an `addr_vec'
       insn must be increased by two to compensate for the fact that
       alignment may be required.
  
!  The routine that returns `get_attr_length' (the value of the `length'
  attribute) can be used by the output routine to determine the form of
  the branch instruction to be written, as the example below illustrates.
  
--- 26282,26332 ----
  
  For many machines, multiple types of branch instructions are provided,
  each for different length branch displacements.  In most cases, the
! assembler will choose the correct instruction to use.  However, when the
! assembler cannot do so, GCC can when a special attribute, the 'length'
! attribute, is defined.  This attribute must be defined to have numeric
! values by specifying a null string in its 'define_attr'.
  
!  In the case of the 'length' attribute, two additional forms of
  arithmetic terms are allowed in test expressions:
  
! '(match_dup N)'
       This refers to the address of operand N of the current insn, which
!      must be a 'label_ref'.
  
! '(pc)'
       For non-branch instructions and backward branch instructions, this
       refers to the address of the current insn.  But for forward branch
       instructions, this refers to the address of the next insn, because
       the length of the current insn is to be computed.
  
   For normal insns, the length will be determined by value of the
! 'length' attribute.  In the case of 'addr_vec' and 'addr_diff_vec' insn
  patterns, the length is computed as the number of vectors multiplied by
  the size of each vector.
  
   Lengths are measured in addressable storage units (bytes).
  
!  Note that it is possible to call functions via the 'symbol_ref'
  mechanism to compute the length of an insn.  However, if you use this
  mechanism you must provide dummy clauses to express the maximum length
! without using the function call.  You can an example of this in the 'pa'
! machine description for the 'call_symref' pattern.
  
   The following macros can be used to refine the length computation:
  
! 'ADJUST_INSN_LENGTH (INSN, LENGTH)'
       If defined, modifies the length assigned to instruction INSN as a
       function of the context in which it is used.  LENGTH is an lvalue
       that contains the initially computed length of the insn and should
       be updated with the correct length of the insn.
  
       This macro will normally not be required.  A case in which it is
!      required is the ROMP.  On this machine, the size of an 'addr_vec'
       insn must be increased by two to compensate for the fact that
       alignment may be required.
  
!  The routine that returns 'get_attr_length' (the value of the 'length'
  attribute) can be used by the output routine to determine the form of
  the branch instruction to be written, as the example below illustrates.
  
*************** the branch instruction to be written, as
*** 26716,26723 ****
  consider the IBM 360.  If we adopt the convention that a register will
  be set to the starting address of a function, we can jump to labels
  within 4k of the start using a four-byte instruction.  Otherwise, we
! need a six-byte sequence to load the address from memory and then
! branch to it.
  
   On such a machine, a pattern for a branch instruction might be
  specified as follows:
--- 26334,26341 ----
  consider the IBM 360.  If we adopt the convention that a register will
  be set to the starting address of a function, we can jump to labels
  within 4k of the start using a four-byte instruction.  Otherwise, we
! need a six-byte sequence to load the address from memory and then branch
! to it.
  
   On such a machine, a pattern for a branch instruction might be
  specified as follows:
*************** File: gccint.info,  Node: Constant Attri
*** 26741,26748 ****
  16.19.6 Constant Attributes
  ---------------------------
  
! A special form of `define_attr', where the expression for the default
! value is a `const' expression, indicates an attribute that is constant
  for a given run of the compiler.  Constant attributes may be used to
  specify which variety of processor is used.  For example,
  
--- 26359,26366 ----
  16.19.6 Constant Attributes
  ---------------------------
  
! A special form of 'define_attr', where the expression for the default
! value is a 'const' expression, indicates an attribute that is constant
  for a given run of the compiler.  Constant attributes may be used to
  specify which variety of processor is used.  For example,
  
*************** specify which variety of processor is us
*** 26760,26768 ****
  
   The routine generated for constant attributes has no parameters as it
  does not depend on any particular insn.  RTL expressions used to define
! the value of a constant attribute may use the `symbol_ref' form, but
! may not use either the `match_operand' form or `eq_attr' forms
! involving insn attributes.
  
  
  File: gccint.info,  Node: Mnemonic Attribute,  Next: Delay Slots,  Prev: Constant Attributes,  Up: Insn Attributes
--- 26378,26386 ----
  
   The routine generated for constant attributes has no parameters as it
  does not depend on any particular insn.  RTL expressions used to define
! the value of a constant attribute may use the 'symbol_ref' form, but may
! not use either the 'match_operand' form or 'eq_attr' forms involving
! insn attributes.
  
  
  File: gccint.info,  Node: Mnemonic Attribute,  Next: Delay Slots,  Prev: Constant Attributes,  Up: Insn Attributes
*************** File: gccint.info,  Node: Mnemonic Attri
*** 26770,26798 ****
  16.19.7 Mnemonic Attribute
  --------------------------
  
! The `mnemonic' attribute is a string type attribute holding the
! instruction mnemonic for an insn alternative.  The attribute values
! will automatically be generated by the machine description parser if
! there is an attribute definition in the md file:
  
       (define_attr "mnemonic" "unknown" (const_string "unknown"))
  
   The default value can be freely chosen as long as it does not collide
! with any of the instruction mnemonics.  This value will be used
! whenever the machine description parser is not able to determine the
! mnemonic string.  This might be the case for output templates
! containing more than a single instruction as in
! `"mvcle\t%0,%1,0\;jo\t.-4"'.
  
!  The `mnemonic' attribute set is not generated automatically if the
  instruction string is generated via C code.
  
!  An existing `mnemonic' attribute set in an insn definition will not be
  overriden by the md file parser.  That way it is possible to manually
  set the instruction mnemonics for the cases where the md file parser
  fails to determine it automatically.
  
!  The `mnemonic' attribute is useful for dealing with instruction
  specific properties in the pipeline description without defining
  additional insn attributes.
  
--- 26388,26415 ----
  16.19.7 Mnemonic Attribute
  --------------------------
  
! The 'mnemonic' attribute is a string type attribute holding the
! instruction mnemonic for an insn alternative.  The attribute values will
! automatically be generated by the machine description parser if there is
! an attribute definition in the md file:
  
       (define_attr "mnemonic" "unknown" (const_string "unknown"))
  
   The default value can be freely chosen as long as it does not collide
! with any of the instruction mnemonics.  This value will be used whenever
! the machine description parser is not able to determine the mnemonic
! string.  This might be the case for output templates containing more
! than a single instruction as in '"mvcle\t%0,%1,0\;jo\t.-4"'.
  
!  The 'mnemonic' attribute set is not generated automatically if the
  instruction string is generated via C code.
  
!  An existing 'mnemonic' attribute set in an insn definition will not be
  overriden by the md file parser.  That way it is possible to manually
  set the instruction mnemonics for the cases where the md file parser
  fails to determine it automatically.
  
!  The 'mnemonic' attribute is useful for dealing with instruction
  specific properties in the pipeline description without defining
  additional insn attributes.
  
*************** File: gccint.info,  Node: Delay Slots,
*** 26810,26824 ****
  The insn attribute mechanism can be used to specify the requirements for
  delay slots, if any, on a target machine.  An instruction is said to
  require a "delay slot" if some instructions that are physically after
! the instruction are executed as if they were located before it.
! Classic examples are branch and call instructions, which often execute
! the following instruction before the branch or call is performed.
  
   On some machines, conditional branch instructions can optionally
! "annul" instructions in the delay slot.  This means that the
! instruction will not be executed for certain branch outcomes.  Both
! instructions that annul if the branch is true and instructions that
! annul if the branch is false are supported.
  
   Delay slot scheduling differs from instruction scheduling in that
  determining whether an instruction needs a delay slot is dependent only
--- 26427,26441 ----
  The insn attribute mechanism can be used to specify the requirements for
  delay slots, if any, on a target machine.  An instruction is said to
  require a "delay slot" if some instructions that are physically after
! the instruction are executed as if they were located before it.  Classic
! examples are branch and call instructions, which often execute the
! following instruction before the branch or call is performed.
  
   On some machines, conditional branch instructions can optionally
! "annul" instructions in the delay slot.  This means that the instruction
! will not be executed for certain branch outcomes.  Both instructions
! that annul if the branch is true and instructions that annul if the
! branch is false are supported.
  
   Delay slot scheduling differs from instruction scheduling in that
  determining whether an instruction needs a delay slot is dependent only
*************** instructions.  See the next section for
*** 26827,26863 ****
  instruction scheduling.
  
   The requirement of an insn needing one or more delay slots is indicated
! via the `define_delay' expression.  It has the following form:
  
       (define_delay TEST
                     [DELAY-1 ANNUL-TRUE-1 ANNUL-FALSE-1
                      DELAY-2 ANNUL-TRUE-2 ANNUL-FALSE-2
                      ...])
  
!  TEST is an attribute test that indicates whether this `define_delay'
! applies to a particular insn.  If so, the number of required delay
! slots is determined by the length of the vector specified as the second
  argument.  An insn placed in delay slot N must satisfy attribute test
  DELAY-N.  ANNUL-TRUE-N is an attribute test that specifies which insns
  may be annulled if the branch is true.  Similarly, ANNUL-FALSE-N
! specifies which insns in the delay slot may be annulled if the branch
! is false.  If annulling is not supported for that delay slot, `(nil)'
  should be coded.
  
   For example, in the common case where branch and call insns require a
  single delay slot, which may contain any insn other than a branch or
! call, the following would be placed in the `md' file:
  
       (define_delay (eq_attr "type" "branch,call")
                     [(eq_attr "type" "!branch,call") (nil) (nil)])
  
!  Multiple `define_delay' expressions may be specified.  In this case,
  each such expression specifies different delay slot requirements and
! there must be no insn for which tests in two `define_delay' expressions
  are both true.
  
   For example, if we have a machine that requires one delay slot for
! branches but two for calls,  no delay slot can contain a branch or call
  insn, and any valid insn in the delay slot for the branch can be
  annulled if the branch is true, we might represent this as follows:
  
--- 26444,26480 ----
  instruction scheduling.
  
   The requirement of an insn needing one or more delay slots is indicated
! via the 'define_delay' expression.  It has the following form:
  
       (define_delay TEST
                     [DELAY-1 ANNUL-TRUE-1 ANNUL-FALSE-1
                      DELAY-2 ANNUL-TRUE-2 ANNUL-FALSE-2
                      ...])
  
!  TEST is an attribute test that indicates whether this 'define_delay'
! applies to a particular insn.  If so, the number of required delay slots
! is determined by the length of the vector specified as the second
  argument.  An insn placed in delay slot N must satisfy attribute test
  DELAY-N.  ANNUL-TRUE-N is an attribute test that specifies which insns
  may be annulled if the branch is true.  Similarly, ANNUL-FALSE-N
! specifies which insns in the delay slot may be annulled if the branch is
! false.  If annulling is not supported for that delay slot, '(nil)'
  should be coded.
  
   For example, in the common case where branch and call insns require a
  single delay slot, which may contain any insn other than a branch or
! call, the following would be placed in the 'md' file:
  
       (define_delay (eq_attr "type" "branch,call")
                     [(eq_attr "type" "!branch,call") (nil) (nil)])
  
!  Multiple 'define_delay' expressions may be specified.  In this case,
  each such expression specifies different delay slot requirements and
! there must be no insn for which tests in two 'define_delay' expressions
  are both true.
  
   For example, if we have a machine that requires one delay slot for
! branches but two for calls, no delay slot can contain a branch or call
  insn, and any valid insn in the delay slot for the branch can be
  annulled if the branch is true, we might represent this as follows:
  
*************** superscalar RISC, and VLIW processors) h
*** 26881,26889 ****
  which several instructions can be executed simultaneously.  An
  instruction starts execution if its issue conditions are satisfied.  If
  not, the instruction is stalled until its conditions are satisfied.
! Such "interlock (pipeline) delay" causes interruption of the fetching
! of successor instructions (or demands nop instructions, e.g. for some
! MIPS processors).
  
   There are two major kinds of interlock delays in modern processors.
  The first one is a data dependence delay determining "instruction
--- 26498,26506 ----
  which several instructions can be executed simultaneously.  An
  instruction starts execution if its issue conditions are satisfied.  If
  not, the instruction is stalled until its conditions are satisfied.
! Such "interlock (pipeline) delay" causes interruption of the fetching of
! successor instructions (or demands nop instructions, e.g. for some MIPS
! processors).
  
   There are two major kinds of interlock delays in modern processors.
  The first one is a data dependence delay determining "instruction
*************** automatically generated from the process
*** 26916,26923 ****
  pipeline hazard recognizer generated from the machine description is
  based on a deterministic finite state automaton (DFA): the instruction
  issue is possible if there is a transition from one automaton state to
! another one.  This algorithm is very fast, and furthermore, its speed
! is not dependent on processor complexity(1).
  
   The rest of this section describes the directives that constitute an
  automaton-based processor pipeline description.  The order of these
--- 26533,26540 ----
  pipeline hazard recognizer generated from the machine description is
  based on a deterministic finite state automaton (DFA): the instruction
  issue is possible if there is a transition from one automaton state to
! another one.  This algorithm is very fast, and furthermore, its speed is
! not dependent on processor complexity(1).
  
   The rest of this section describes the directives that constitute an
  automaton-based processor pipeline description.  The order of these
*************** constructions within the machine descrip
*** 26927,26942 ****
  generated and used for the pipeline hazards recognition.  Sometimes the
  generated finite state automaton used by the pipeline hazard recognizer
  is large.  If we use more than one automaton and bind functional units
! to the automata, the total size of the automata is usually less than
! the size of the single automaton.  If there is no one such
! construction, only one finite state automaton is generated.
  
       (define_automaton AUTOMATA-NAMES)
  
!  AUTOMATA-NAMES is a string giving names of the automata.  The names
! are separated by commas.  All the automata should have unique names.
! The automaton name is used in the constructions `define_cpu_unit' and
! `define_query_cpu_unit'.
  
   Each processor functional unit used in the description of instruction
  reservations should be described by the following construction.
--- 26544,26559 ----
  generated and used for the pipeline hazards recognition.  Sometimes the
  generated finite state automaton used by the pipeline hazard recognizer
  is large.  If we use more than one automaton and bind functional units
! to the automata, the total size of the automata is usually less than the
! size of the single automaton.  If there is no one such construction,
! only one finite state automaton is generated.
  
       (define_automaton AUTOMATA-NAMES)
  
!  AUTOMATA-NAMES is a string giving names of the automata.  The names are
! separated by commas.  All the automata should have unique names.  The
! automaton name is used in the constructions 'define_cpu_unit' and
! 'define_query_cpu_unit'.
  
   Each processor functional unit used in the description of instruction
  reservations should be described by the following construction.
*************** reservations should be described by the
*** 26944,26972 ****
       (define_cpu_unit UNIT-NAMES [AUTOMATON-NAME])
  
   UNIT-NAMES is a string giving the names of the functional units
! separated by commas.  Don't use name `nothing', it is reserved for
! other goals.
  
   AUTOMATON-NAME is a string giving the name of the automaton with which
  the unit is bound.  The automaton should be described in construction
! `define_automaton'.  You should give "automaton-name", if there is a
  defined automaton.
  
   The assignment of units to automata are constrained by the uses of the
! units in insn reservations.  The most important constraint is: if a
! unit reservation is present on a particular cycle of an alternative for
! an insn reservation, then some unit from the same automaton must be
! present on the same cycle for the other alternatives of the insn
! reservation.  The rest of the constraints are mentioned in the
! description of the subsequent constructions.
  
   The following construction describes CPU functional units analogously
! to `define_cpu_unit'.  The reservation of such units can be queried for
! an automaton state.  The instruction scheduler never queries
! reservation of functional units for given automaton state.  So as a
! rule, you don't need this construction.  This construction could be
! used for future code generation goals (e.g. to generate VLIW insn
! templates).
  
       (define_query_cpu_unit UNIT-NAMES [AUTOMATON-NAME])
  
--- 26561,26588 ----
       (define_cpu_unit UNIT-NAMES [AUTOMATON-NAME])
  
   UNIT-NAMES is a string giving the names of the functional units
! separated by commas.  Don't use name 'nothing', it is reserved for other
! goals.
  
   AUTOMATON-NAME is a string giving the name of the automaton with which
  the unit is bound.  The automaton should be described in construction
! 'define_automaton'.  You should give "automaton-name", if there is a
  defined automaton.
  
   The assignment of units to automata are constrained by the uses of the
! units in insn reservations.  The most important constraint is: if a unit
! reservation is present on a particular cycle of an alternative for an
! insn reservation, then some unit from the same automaton must be present
! on the same cycle for the other alternatives of the insn reservation.
! The rest of the constraints are mentioned in the description of the
! subsequent constructions.
  
   The following construction describes CPU functional units analogously
! to 'define_cpu_unit'.  The reservation of such units can be queried for
! an automaton state.  The instruction scheduler never queries reservation
! of functional units for given automaton state.  So as a rule, you don't
! need this construction.  This construction could be used for future code
! generation goals (e.g. to generate VLIW insn templates).
  
       (define_query_cpu_unit UNIT-NAMES [AUTOMATON-NAME])
  
*************** There is an important difference between
*** 26987,27013 ****
  automaton based pipeline description.  The latency time is used for all
  dependencies when we use the old description.  In the automaton based
  pipeline description, the given latency time is only used for true
! dependencies.  The cost of anti-dependencies is always zero and the
! cost of output dependencies is the difference between latency times of
! the producing and consuming insns (if the difference is negative, the
! cost is considered to be zero).  You can always change the default
! costs for any description by using the target hook
! `TARGET_SCHED_ADJUST_COST' (*note Scheduling::).
  
   INSN-NAME is a string giving the internal name of the insn.  The
! internal names are used in constructions `define_bypass' and in the
  automaton description file generated for debugging.  The internal name
! has nothing in common with the names in `define_insn'.  It is a good
  practice to use insn classes described in the processor manual.
  
   CONDITION defines what RTL insns are described by this construction.
  You should remember that you will be in trouble if CONDITION for two or
! more different `define_insn_reservation' constructions is TRUE for an
  insn.  In this case what reservation will be used for the insn is not
  defined.  Such cases are not checked during generation of the pipeline
  hazards recognizer because in general recognizing that two conditions
  may have the same value is quite difficult (especially if the conditions
! contain `symbol_ref').  It is also not checked during the pipeline
  hazard recognizer work because it would slow down the recognizer
  considerably.
  
--- 26603,26629 ----
  automaton based pipeline description.  The latency time is used for all
  dependencies when we use the old description.  In the automaton based
  pipeline description, the given latency time is only used for true
! dependencies.  The cost of anti-dependencies is always zero and the cost
! of output dependencies is the difference between latency times of the
! producing and consuming insns (if the difference is negative, the cost
! is considered to be zero).  You can always change the default costs for
! any description by using the target hook 'TARGET_SCHED_ADJUST_COST'
! (*note Scheduling::).
  
   INSN-NAME is a string giving the internal name of the insn.  The
! internal names are used in constructions 'define_bypass' and in the
  automaton description file generated for debugging.  The internal name
! has nothing in common with the names in 'define_insn'.  It is a good
  practice to use insn classes described in the processor manual.
  
   CONDITION defines what RTL insns are described by this construction.
  You should remember that you will be in trouble if CONDITION for two or
! more different 'define_insn_reservation' constructions is TRUE for an
  insn.  In this case what reservation will be used for the insn is not
  defined.  Such cases are not checked during generation of the pipeline
  hazards recognizer because in general recognizing that two conditions
  may have the same value is quite difficult (especially if the conditions
! contain 'symbol_ref').  It is also not checked during the pipeline
  hazard recognizer work because it would slow down the recognizer
  considerably.
  
*************** expression according to the following sy
*** 27033,27060 ****
                      | "nothing"
                      | "(" regexp ")"
  
!    * `,' is used for describing the start of the next cycle in the
       reservation.
  
!    * `|' is used for describing a reservation described by the first
       regular expression *or* a reservation described by the second
       regular expression *or* etc.
  
!    * `+' is used for describing a reservation described by the first
       regular expression *and* a reservation described by the second
       regular expression *and* etc.
  
!    * `*' is used for convenience and simply means a sequence in which
       the regular expression are repeated NUMBER times with cycle
!      advancing (see `,').
  
!    * `cpu_function_unit_name' denotes reservation of the named
       functional unit.
  
!    * `reservation_name' -- see description of construction
!      `define_reservation'.
  
!    * `nothing' denotes no unit reservations.
  
   Sometimes unit reservations for different insns contain common parts.
  In such case, you can simplify the pipeline description by describing
--- 26649,26676 ----
                      | "nothing"
                      | "(" regexp ")"
  
!    * ',' is used for describing the start of the next cycle in the
       reservation.
  
!    * '|' is used for describing a reservation described by the first
       regular expression *or* a reservation described by the second
       regular expression *or* etc.
  
!    * '+' is used for describing a reservation described by the first
       regular expression *and* a reservation described by the second
       regular expression *and* etc.
  
!    * '*' is used for convenience and simply means a sequence in which
       the regular expression are repeated NUMBER times with cycle
!      advancing (see ',').
  
!    * 'cpu_function_unit_name' denotes reservation of the named
       functional unit.
  
!    * 'reservation_name' -- see description of construction
!      'define_reservation'.
  
!    * 'nothing' denotes no unit reservations.
  
   Sometimes unit reservations for different insns contain common parts.
  In such case, you can simplify the pipeline description by describing
*************** the common part by the following constru
*** 27064,27071 ****
  
   RESERVATION-NAME is a string giving name of REGEXP.  Functional unit
  names and reservation names are in the same name space.  So the
! reservation names should be different from the functional unit names
! and can not be the reserved name `nothing'.
  
   The following construction is used to describe exceptions in the
  latency time for given instruction pair.  This is so called bypasses.
--- 26680,26687 ----
  
   RESERVATION-NAME is a string giving name of REGEXP.  Functional unit
  names and reservation names are in the same name space.  So the
! reservation names should be different from the functional unit names and
! can not be the reserved name 'nothing'.
  
   The following construction is used to describe exceptions in the
  latency time for given instruction pair.  This is so called bypasses.
*************** latency time for given instruction pair.
*** 27074,27098 ****
                      [GUARD])
  
   NUMBER defines when the result generated by the instructions given in
! string OUT_INSN_NAMES will be ready for the instructions given in
! string IN_INSN_NAMES.  Each of these strings is a comma-separated list
! of filename-style globs and they refer to the names of
! `define_insn_reservation's.  For example:
       (define_bypass 1 "cpu1_load_*, cpu1_store_*" "cpu1_load_*")
!  defines a bypass between instructions that start with `cpu1_load_' or
! `cpu1_store_' and those that start with `cpu1_load_'.
  
   GUARD is an optional string giving the name of a C function which
  defines an additional guard for the bypass.  The function will get the
  two insns as parameters.  If the function returns zero the bypass will
  be ignored for this case.  The additional guard is necessary to
  recognize complicated bypasses, e.g. when the consumer is only an
! address of insn `store' (not a stored value).
  
   If there are more one bypass with the same output and input insns, the
  chosen bypass is the first bypass with a guard in description whose
! guard function returns nonzero.  If there is no such bypass, then
! bypass without the guard function is chosen.
  
   The following five constructions are usually used to describe VLIW
  processors, or more precisely, to describe a placement of small
--- 26690,26714 ----
                      [GUARD])
  
   NUMBER defines when the result generated by the instructions given in
! string OUT_INSN_NAMES will be ready for the instructions given in string
! IN_INSN_NAMES.  Each of these strings is a comma-separated list of
! filename-style globs and they refer to the names of
! 'define_insn_reservation's.  For example:
       (define_bypass 1 "cpu1_load_*, cpu1_store_*" "cpu1_load_*")
!  defines a bypass between instructions that start with 'cpu1_load_' or
! 'cpu1_store_' and those that start with 'cpu1_load_'.
  
   GUARD is an optional string giving the name of a C function which
  defines an additional guard for the bypass.  The function will get the
  two insns as parameters.  If the function returns zero the bypass will
  be ignored for this case.  The additional guard is necessary to
  recognize complicated bypasses, e.g. when the consumer is only an
! address of insn 'store' (not a stored value).
  
   If there are more one bypass with the same output and input insns, the
  chosen bypass is the first bypass with a guard in description whose
! guard function returns nonzero.  If there is no such bypass, then bypass
! without the guard function is chosen.
  
   The following five constructions are usually used to describe VLIW
  processors, or more precisely, to describe a placement of small
*************** commas.
*** 27112,27118 ****
  comma.  Currently pattern is one unit or units separated by
  white-spaces.
  
!  The first construction (`exclusion_set') means that each functional
  unit in the first string can not be reserved simultaneously with a unit
  whose name is in the second string and vice versa.  For example, the
  construction is useful for describing processors (e.g. some SPARC
--- 26728,26734 ----
  comma.  Currently pattern is one unit or units separated by
  white-spaces.
  
!  The first construction ('exclusion_set') means that each functional
  unit in the first string can not be reserved simultaneously with a unit
  whose name is in the second string and vice versa.  For example, the
  construction is useful for describing processors (e.g. some SPARC
*************** processors) with a fully pipelined float
*** 27120,27179 ****
  can execute simultaneously only single floating point insns or only
  double floating point insns.
  
!  The second construction (`presence_set') means that each functional
  unit in the first string can not be reserved unless at least one of
! pattern of units whose names are in the second string is reserved.
! This is an asymmetric relation.  For example, it is useful for
! description that VLIW `slot1' is reserved after `slot0' reservation.
! We could describe it by the following construction
  
       (presence_set "slot1" "slot0")
  
!  Or `slot1' is reserved only after `slot0' and unit `b0' reservation.
  In this case we could write
  
       (presence_set "slot1" "slot0 b0")
  
!  The third construction (`final_presence_set') is analogous to
! `presence_set'.  The difference between them is when checking is done.
  When an instruction is issued in given automaton state reflecting all
  current and planned unit reservations, the automaton state is changed.
  The first state is a source state, the second one is a result state.
! Checking for `presence_set' is done on the source state reservation,
! checking for `final_presence_set' is done on the result reservation.
  This construction is useful to describe a reservation which is actually
  two subsequent reservations.  For example, if we use
  
       (presence_set "slot1" "slot0")
  
!  the following insn will be never issued (because `slot1' requires
! `slot0' which is absent in the source state).
  
       (define_reservation "insn_and_nop" "slot0 + slot1")
  
!  but it can be issued if we use analogous `final_presence_set'.
  
!  The forth construction (`absence_set') means that each functional unit
  in the first string can be reserved only if each pattern of units whose
  names are in the second string is not reserved.  This is an asymmetric
! relation (actually `exclusion_set' is analogous to this one but it is
! symmetric).  For example it might be useful in a VLIW description to
! say that `slot0' cannot be reserved after either `slot1' or `slot2'
! have been reserved.  This can be described as:
  
       (absence_set "slot0" "slot1, slot2")
  
!  Or `slot2' can not be reserved if `slot0' and unit `b0' are reserved
! or `slot1' and unit `b1' are reserved.  In this case we could write
  
       (absence_set "slot2" "slot0 b0, slot1 b1")
  
   All functional units mentioned in a set should belong to the same
  automaton.
  
!  The last construction (`final_absence_set') is analogous to
! `absence_set' but checking is done on the result (state) reservation.
! See comments for `final_presence_set'.
  
   You can control the generator of the pipeline hazard recognizer with
  the following construction.
--- 26736,26795 ----
  can execute simultaneously only single floating point insns or only
  double floating point insns.
  
!  The second construction ('presence_set') means that each functional
  unit in the first string can not be reserved unless at least one of
! pattern of units whose names are in the second string is reserved.  This
! is an asymmetric relation.  For example, it is useful for description
! that VLIW 'slot1' is reserved after 'slot0' reservation.  We could
! describe it by the following construction
  
       (presence_set "slot1" "slot0")
  
!  Or 'slot1' is reserved only after 'slot0' and unit 'b0' reservation.
  In this case we could write
  
       (presence_set "slot1" "slot0 b0")
  
!  The third construction ('final_presence_set') is analogous to
! 'presence_set'.  The difference between them is when checking is done.
  When an instruction is issued in given automaton state reflecting all
  current and planned unit reservations, the automaton state is changed.
  The first state is a source state, the second one is a result state.
! Checking for 'presence_set' is done on the source state reservation,
! checking for 'final_presence_set' is done on the result reservation.
  This construction is useful to describe a reservation which is actually
  two subsequent reservations.  For example, if we use
  
       (presence_set "slot1" "slot0")
  
!  the following insn will be never issued (because 'slot1' requires
! 'slot0' which is absent in the source state).
  
       (define_reservation "insn_and_nop" "slot0 + slot1")
  
!  but it can be issued if we use analogous 'final_presence_set'.
  
!  The forth construction ('absence_set') means that each functional unit
  in the first string can be reserved only if each pattern of units whose
  names are in the second string is not reserved.  This is an asymmetric
! relation (actually 'exclusion_set' is analogous to this one but it is
! symmetric).  For example it might be useful in a VLIW description to say
! that 'slot0' cannot be reserved after either 'slot1' or 'slot2' have
! been reserved.  This can be described as:
  
       (absence_set "slot0" "slot1, slot2")
  
!  Or 'slot2' can not be reserved if 'slot0' and unit 'b0' are reserved or
! 'slot1' and unit 'b1' are reserved.  In this case we could write
  
       (absence_set "slot2" "slot0 b0, slot1 b1")
  
   All functional units mentioned in a set should belong to the same
  automaton.
  
!  The last construction ('final_absence_set') is analogous to
! 'absence_set' but checking is done on the result (state) reservation.
! See comments for 'final_presence_set'.
  
   You can control the generator of the pipeline hazard recognizer with
  the following construction.
*************** Currently there are the following option
*** 27190,27227 ****
     * "time" means printing time statistics about the generation of
       automata.
  
!    * "stats" means printing statistics about the generated automata
!      such as the number of DFA states, NDFA states and arcs.
  
     * "v" means a generation of the file describing the result automata.
!      The file has suffix `.dfa' and can be used for the description
       verification and debugging.
  
!    * "w" means a generation of warning instead of error for
!      non-critical errors.
  
!    * "no-comb-vect" prevents the automaton generator from generating
!      two data structures and comparing them for space efficiency.  Using
!      a comb vector to represent transitions may be better, but it can be
       very expensive to construct.  This option is useful if the build
       process spends an unacceptably long time in genautomata.
  
     * "ndfa" makes nondeterministic finite state automata.  This affects
!      the treatment of operator `|' in the regular expressions.  The
       usual treatment of the operator is to try the first alternative
       and, if the reservation is not possible, the second alternative.
       The nondeterministic treatment means trying all alternatives, some
       of them may be rejected by reservations in the subsequent insns.
  
     * "collapse-ndfa" modifies the behavior of the generator when
!      producing an automaton.  An additional state transition to
!      collapse a nondeterministic NDFA state to a deterministic DFA
!      state is generated.  It can be triggered by passing `const0_rtx' to
       state_transition.  In such an automaton, cycle advance transitions
       are available only for these collapsed states.  This option is
!      useful for ports that want to use the `ndfa' option, but also want
!      to use `define_query_cpu_unit' to assign units to insns issued in
!      a cycle.
  
     * "progress" means output of a progress bar showing how many states
       were generated so far for automaton being processed.  This is
--- 26806,26843 ----
     * "time" means printing time statistics about the generation of
       automata.
  
!    * "stats" means printing statistics about the generated automata such
!      as the number of DFA states, NDFA states and arcs.
  
     * "v" means a generation of the file describing the result automata.
!      The file has suffix '.dfa' and can be used for the description
       verification and debugging.
  
!    * "w" means a generation of warning instead of error for non-critical
!      errors.
  
!    * "no-comb-vect" prevents the automaton generator from generating two
!      data structures and comparing them for space efficiency.  Using a
!      comb vector to represent transitions may be better, but it can be
       very expensive to construct.  This option is useful if the build
       process spends an unacceptably long time in genautomata.
  
     * "ndfa" makes nondeterministic finite state automata.  This affects
!      the treatment of operator '|' in the regular expressions.  The
       usual treatment of the operator is to try the first alternative
       and, if the reservation is not possible, the second alternative.
       The nondeterministic treatment means trying all alternatives, some
       of them may be rejected by reservations in the subsequent insns.
  
     * "collapse-ndfa" modifies the behavior of the generator when
!      producing an automaton.  An additional state transition to collapse
!      a nondeterministic NDFA state to a deterministic DFA state is
!      generated.  It can be triggered by passing 'const0_rtx' to
       state_transition.  In such an automaton, cycle advance transitions
       are available only for these collapsed states.  This option is
!      useful for ports that want to use the 'ndfa' option, but also want
!      to use 'define_query_cpu_unit' to assign units to insns issued in a
!      cycle.
  
     * "progress" means output of a progress bar showing how many states
       were generated so far for automaton being processed.  This is
*************** Currently there are the following option
*** 27231,27238 ****
       the huge automaton.
  
   As an example, consider a superscalar RISC machine which can issue
! three insns (two integer insns and one floating point insn) on the
! cycle but can finish only two insns.  To describe this, we define the
  following functional units.
  
       (define_cpu_unit "i0_pipeline, i1_pipeline, f_pipeline")
--- 26847,26854 ----
       the huge automaton.
  
   As an example, consider a superscalar RISC machine which can issue
! three insns (two integer insns and one floating point insn) on the cycle
! but can finish only two insns.  To describe this, we define the
  following functional units.
  
       (define_cpu_unit "i0_pipeline, i1_pipeline, f_pipeline")
*************** following functional units.
*** 27240,27255 ****
  
   All simple integer insns can be executed in any integer pipeline and
  their result is ready in two cycles.  The simple integer insns are
! issued into the first pipeline unless it is reserved, otherwise they
! are issued into the second pipeline.  Integer division and
! multiplication insns can be executed only in the second integer
! pipeline and their results are ready correspondingly in 8 and 4 cycles.
! The integer division is not pipelined, i.e. the subsequent integer
! division insn can not be issued until the current division insn
! finished.  Floating point insns are fully pipelined and their results
! are ready in 3 cycles.  Where the result of a floating point insn is
! used by an integer insn, an additional delay of one cycle is incurred.
! To describe all of this we could specify
  
       (define_cpu_unit "div")
  
--- 26856,26871 ----
  
   All simple integer insns can be executed in any integer pipeline and
  their result is ready in two cycles.  The simple integer insns are
! issued into the first pipeline unless it is reserved, otherwise they are
! issued into the second pipeline.  Integer division and multiplication
! insns can be executed only in the second integer pipeline and their
! results are ready correspondingly in 8 and 4 cycles.  The integer
! division is not pipelined, i.e. the subsequent integer division insn can
! not be issued until the current division insn finished.  Floating point
! insns are fully pipelined and their results are ready in 3 cycles.
! Where the result of a floating point insn is used by an integer insn, an
! additional delay of one cycle is incurred.  To describe all of this we
! could specify
  
       (define_cpu_unit "div")
  
*************** To describe all of this we could specify
*** 27271,27289 ****
  
       (define_reservation "finish" "port0|port1")
  
!  and use it in all `define_insn_reservation' as in the following
  construction
  
       (define_insn_reservation "simple" 2 (eq_attr "type" "int")
                                "(i0_pipeline | i1_pipeline), finish")
  
!  ---------- Footnotes ----------
  
!  (1) However, the size of the automaton depends on processor
  complexity.  To limit this effect, machine descriptions can split
  orthogonal parts of the machine description among several automata: but
! then, since each of these must be stepped independently, this does
! cause a small decrease in the algorithm's performance.
  
  
  File: gccint.info,  Node: Conditional Execution,  Next: Define Subst,  Prev: Insn Attributes,  Up: Machine Desc
--- 26887,26905 ----
  
       (define_reservation "finish" "port0|port1")
  
!  and use it in all 'define_insn_reservation' as in the following
  construction
  
       (define_insn_reservation "simple" 2 (eq_attr "type" "int")
                                "(i0_pipeline | i1_pipeline), finish")
  
!    ---------- Footnotes ----------
  
!    (1) However, the size of the automaton depends on processor
  complexity.  To limit this effect, machine descriptions can split
  orthogonal parts of the machine description among several automata: but
! then, since each of these must be stepped independently, this does cause
! a small decrease in the algorithm's performance.
  
  
  File: gccint.info,  Node: Conditional Execution,  Next: Define Subst,  Prev: Insn Attributes,  Up: Machine Desc
*************** A number of architectures provide for so
*** 27295,27302 ****
  execution, or predication.  The hallmark of this feature is the ability
  to nullify most of the instructions in the instruction set.  When the
  instruction set is large and not entirely symmetric, it can be quite
! tedious to describe these forms directly in the `.md' file.  An
! alternative is the `define_cond_exec' template.
  
       (define_cond_exec
         [PREDICATE-PATTERN]
--- 26911,26918 ----
  execution, or predication.  The hallmark of this feature is the ability
  to nullify most of the instructions in the instruction set.  When the
  instruction set is large and not entirely symmetric, it can be quite
! tedious to describe these forms directly in the '.md' file.  An
! alternative is the 'define_cond_exec' template.
  
       (define_cond_exec
         [PREDICATE-PATTERN]
*************** alternative is the `define_cond_exec' te
*** 27304,27345 ****
         "OUTPUT-TEMPLATE"
         "OPTIONAL-INSN-ATTRIBUES")
  
!  PREDICATE-PATTERN is the condition that must be true for the insn to
! be executed at runtime and should match a relational operator.  One can
! use `match_operator' to match several relational operators at once.
! Any `match_operand' operands must have no more than one alternative.
  
!  CONDITION is a C expression that must be true for the generated
! pattern to match.
  
!  OUTPUT-TEMPLATE is a string similar to the `define_insn' output
! template (*note Output Template::), except that the `*' and `@' special
  cases do not apply.  This is only useful if the assembly text for the
  predicate is a simple prefix to the main insn.  In order to handle the
! general case, there is a global variable `current_insn_predicate' that
! will contain the entire predicate if the current insn is predicated,
! and will otherwise be `NULL'.
  
   OPTIONAL-INSN-ATTRIBUTES is an optional vector of attributes that gets
! appended to the insn attributes of the produced cond_exec rtx. It can
  be used to add some distinguishing attribute to cond_exec rtxs produced
! that way. An example usage would be to use this attribute in conjunction
! with attributes on the main pattern to disable particular alternatives
! under certain conditions.
  
!  When `define_cond_exec' is used, an implicit reference to the
! `predicable' instruction attribute is made.  *Note Insn Attributes::.
  This attribute must be a boolean (i.e. have exactly two elements in its
! LIST-OF-VALUES), with the possible values being `no' and `yes'.  The
  default and all uses in the insns must be a simple constant, not a
  complex expressions.  It may, however, depend on the alternative, by
  using a comma-separated list of values.  If that is the case, the port
! should also define an `enabled' attribute (*note Disable Insn
! Alternatives::), which should also allow only `no' and `yes' as its
  values.
  
!  For each `define_insn' for which the `predicable' attribute is true, a
! new `define_insn' pattern will be generated that matches a predicated
  version of the instruction.  For example,
  
       (define_insn "addsi"
--- 26920,26961 ----
         "OUTPUT-TEMPLATE"
         "OPTIONAL-INSN-ATTRIBUES")
  
!  PREDICATE-PATTERN is the condition that must be true for the insn to be
! executed at runtime and should match a relational operator.  One can use
! 'match_operator' to match several relational operators at once.  Any
! 'match_operand' operands must have no more than one alternative.
  
!  CONDITION is a C expression that must be true for the generated pattern
! to match.
  
!  OUTPUT-TEMPLATE is a string similar to the 'define_insn' output
! template (*note Output Template::), except that the '*' and '@' special
  cases do not apply.  This is only useful if the assembly text for the
  predicate is a simple prefix to the main insn.  In order to handle the
! general case, there is a global variable 'current_insn_predicate' that
! will contain the entire predicate if the current insn is predicated, and
! will otherwise be 'NULL'.
  
   OPTIONAL-INSN-ATTRIBUTES is an optional vector of attributes that gets
! appended to the insn attributes of the produced cond_exec rtx.  It can
  be used to add some distinguishing attribute to cond_exec rtxs produced
! that way.  An example usage would be to use this attribute in
! conjunction with attributes on the main pattern to disable particular
! alternatives under certain conditions.
  
!  When 'define_cond_exec' is used, an implicit reference to the
! 'predicable' instruction attribute is made.  *Note Insn Attributes::.
  This attribute must be a boolean (i.e. have exactly two elements in its
! LIST-OF-VALUES), with the possible values being 'no' and 'yes'.  The
  default and all uses in the insns must be a simple constant, not a
  complex expressions.  It may, however, depend on the alternative, by
  using a comma-separated list of values.  If that is the case, the port
! should also define an 'enabled' attribute (*note Disable Insn
! Alternatives::), which should also allow only 'no' and 'yes' as its
  values.
  
!  For each 'define_insn' for which the 'predicable' attribute is true, a
! new 'define_insn' pattern will be generated that matches a predicated
  version of the instruction.  For example,
  
       (define_insn "addsi"
*************** File: gccint.info,  Node: Define Subst,
*** 27374,27384 ****
  
  For some hardware architectures there are common cases when the RTL
  templates for the instructions can be derived from the other RTL
! templates using simple transformations.  E.g., `i386.md' contains an
! RTL template for the ordinary `sub' instruction-- `*subsi_1', and for
! the `sub' instruction with subsequent zero-extension--`*subsi_1_zext'.
! Such cases can be easily implemented by a single meta-template capable
! of generating a modified case based on the initial one:
  
       (define_subst "NAME"
         [INPUT-TEMPLATE]
--- 26990,27000 ----
  
  For some hardware architectures there are common cases when the RTL
  templates for the instructions can be derived from the other RTL
! templates using simple transformations.  E.g., 'i386.md' contains an RTL
! template for the ordinary 'sub' instruction-- '*subsi_1', and for the
! 'sub' instruction with subsequent zero-extension--'*subsi_1_zext'.  Such
! cases can be easily implemented by a single meta-template capable of
! generating a modified case based on the initial one:
  
       (define_subst "NAME"
         [INPUT-TEMPLATE]
*************** output-template.
*** 27394,27431 ****
   OUTPUT-TEMPLATE is a pattern that will be used in the resulting
  template.
  
!  `define_subst' mechanism is tightly coupled with the notion of the
! subst attribute (*note Subst Iterators::).  The use of `define_subst'
! is triggered by a reference to a subst attribute in the transforming
! RTL template.  This reference initiates duplication of the source RTL
  template and substitution of the attributes with their values.  The
  source RTL template is left unchanged, while the copy is transformed by
! `define_subst'.  This transformation can fail in the case when the
  source RTL template is not matched against the input-template of the
! `define_subst'.  In such case the copy is deleted.
  
!  `define_subst' can be used only in `define_insn' and `define_expand',
! it cannot be used in other expressions (e.g. in
! `define_insn_and_split').
  
  * Menu:
  
! * Define Subst Example::	    Example of `define_subst' work.
  * Define Subst Pattern Matching::   Process of template comparison.
  * Define Subst Output Template::    Generation of output template.
  
  
  File: gccint.info,  Node: Define Subst Example,  Next: Define Subst Pattern Matching,  Up: Define Subst
  
! 16.21.1 `define_subst' Example
  ------------------------------
  
! To illustrate how `define_subst' works, let us examine a simple
! template transformation.
  
   Suppose there are two kinds of instructions: one that touches flags and
  the other that does not.  The instructions of the second type could be
! generated with the following `define_subst':
  
       (define_subst "add_clobber_subst"
         [(set (match_operand:SI 0 "" "")
--- 27010,27047 ----
   OUTPUT-TEMPLATE is a pattern that will be used in the resulting
  template.
  
!  'define_subst' mechanism is tightly coupled with the notion of the
! subst attribute (*note Subst Iterators::).  The use of 'define_subst' is
! triggered by a reference to a subst attribute in the transforming RTL
! template.  This reference initiates duplication of the source RTL
  template and substitution of the attributes with their values.  The
  source RTL template is left unchanged, while the copy is transformed by
! 'define_subst'.  This transformation can fail in the case when the
  source RTL template is not matched against the input-template of the
! 'define_subst'.  In such case the copy is deleted.
  
!  'define_subst' can be used only in 'define_insn' and 'define_expand',
! it cannot be used in other expressions (e.g.  in
! 'define_insn_and_split').
  
  * Menu:
  
! * Define Subst Example::	    Example of 'define_subst' work.
  * Define Subst Pattern Matching::   Process of template comparison.
  * Define Subst Output Template::    Generation of output template.
  
  
  File: gccint.info,  Node: Define Subst Example,  Next: Define Subst Pattern Matching,  Up: Define Subst
  
! 16.21.1 'define_subst' Example
  ------------------------------
  
! To illustrate how 'define_subst' works, let us examine a simple template
! transformation.
  
   Suppose there are two kinds of instructions: one that touches flags and
  the other that does not.  The instructions of the second type could be
! generated with the following 'define_subst':
  
       (define_subst "add_clobber_subst"
         [(set (match_operand:SI 0 "" "")
*************** generated with the following `define_sub
*** 27435,27445 ****
               (match_dup 1))
          (clobber (reg:CC FLAGS_REG))]
  
!  This `define_subst' can be applied to any RTL pattern containing `set'
  of mode SI and generates a copy with clobber when it is applied.
  
!  Assume there is an RTL template for a `max' instruction to be used in
! `define_subst' mentioned above:
  
       (define_insn "maxsi"
         [(set (match_operand:SI 0 "register_operand" "=r")
--- 27051,27061 ----
               (match_dup 1))
          (clobber (reg:CC FLAGS_REG))]
  
!  This 'define_subst' can be applied to any RTL pattern containing 'set'
  of mode SI and generates a copy with clobber when it is applied.
  
!  Assume there is an RTL template for a 'max' instruction to be used in
! 'define_subst' mentioned above:
  
       (define_insn "maxsi"
         [(set (match_operand:SI 0 "register_operand" "=r")
*************** of mode SI and generates a copy with clo
*** 27450,27469 ****
         "max\t{%2, %1, %0|%0, %1, %2}"
        [...])
  
!  To mark the RTL template for `define_subst' application,
  subst-attributes are used.  They should be declared in advance:
  
       (define_subst_attr "add_clobber_name" "add_clobber_subst" "_noclobber" "_clobber")
  
!  Here `add_clobber_name' is the attribute name, `add_clobber_subst' is
! the name of the corresponding `define_subst', the third argument
! (`_noclobber') is the attribute value that would be substituted into
! the unchanged version of the source RTL template, and the last argument
! (`_clobber') is the value that would be substituted into the second,
  transformed, version of the RTL template.
  
   Once the subst-attribute has been defined, it should be used in RTL
! templates which need to be processed by the `define_subst'.  So, the
  original RTL template should be changed:
  
       (define_insn "maxsi<add_clobber_name>"
--- 27066,27085 ----
         "max\t{%2, %1, %0|%0, %1, %2}"
        [...])
  
!  To mark the RTL template for 'define_subst' application,
  subst-attributes are used.  They should be declared in advance:
  
       (define_subst_attr "add_clobber_name" "add_clobber_subst" "_noclobber" "_clobber")
  
!  Here 'add_clobber_name' is the attribute name, 'add_clobber_subst' is
! the name of the corresponding 'define_subst', the third argument
! ('_noclobber') is the attribute value that would be substituted into the
! unchanged version of the source RTL template, and the last argument
! ('_clobber') is the value that would be substituted into the second,
  transformed, version of the RTL template.
  
   Once the subst-attribute has been defined, it should be used in RTL
! templates which need to be processed by the 'define_subst'.  So, the
  original RTL template should be changed:
  
       (define_insn "maxsi<add_clobber_name>"
*************** original RTL template should be changed:
*** 27475,27481 ****
         "max\t{%2, %1, %0|%0, %1, %2}"
        [...])
  
!  The result of the `define_subst' usage would look like the following:
  
       (define_insn "maxsi_noclobber"
         [(set (match_operand:SI 0 "register_operand" "=r")
--- 27091,27097 ----
         "max\t{%2, %1, %0|%0, %1, %2}"
        [...])
  
!  The result of the 'define_subst' usage would look like the following:
  
       (define_insn "maxsi_noclobber"
         [(set (match_operand:SI 0 "register_operand" "=r")
*************** original RTL template should be changed:
*** 27498,27564 ****
  
  File: gccint.info,  Node: Define Subst Pattern Matching,  Next: Define Subst Output Template,  Prev: Define Subst Example,  Up: Define Subst
  
! 16.21.2 Pattern Matching in `define_subst'
  ------------------------------------------
  
! All expressions, allowed in `define_insn' or `define_expand', are
! allowed in the input-template of `define_subst', except
! `match_par_dup', `match_scratch', `match_parallel'. The meanings of
! expressions in the input-template were changed:
  
!  `match_operand' matches any expression (possibly, a subtree in
! RTL-template), if modes of the `match_operand' and this expression are
! the same, or mode of the `match_operand' is `VOIDmode', or this
! expression is `match_dup', `match_op_dup'.  If the expression is
! `match_operand' too, and predicate of `match_operand' from the input
  pattern is not empty, then the predicates are compared.  That can be
  used for more accurate filtering of accepted RTL-templates.
  
!  `match_operator' matches common operators (like `plus', `minus'),
! `unspec', `unspec_volatile' operators and `match_operator's from the
! original pattern if the modes match and `match_operator' from the input
  pattern has the same number of operands as the operator from the
  original pattern.
  
  
  File: gccint.info,  Node: Define Subst Output Template,  Prev: Define Subst Pattern Matching,  Up: Define Subst
  
! 16.21.3 Generation of output template in `define_subst'
  -------------------------------------------------------
  
! If all necessary checks for `define_subst' application pass, a new
  RTL-pattern, based on the output-template, is created to replace the old
  template.  Like in input-patterns, meanings of some RTL expressions are
! changed when they are used in output-patterns of a `define_subst'.
! Thus, `match_dup' is used for copying the whole expression from the
! original pattern, which matched corresponding `match_operand' from the
  input pattern.
  
!  `match_dup N' is used in the output template to be replaced with the
! expression from the original pattern, which matched `match_operand N'
! from the input pattern.  As a consequence, `match_dup' cannot be used
! to point to `match_operand's from the output pattern, it should always
! refer to a `match_operand' from the input pattern.
  
   In the output template one can refer to the expressions from the
  original pattern and create new ones.  For instance, some operands could
! be added by means of standard `match_operand'.
  
!  After replacing `match_dup' with some RTL-subtree from the original
! pattern, it could happen that several `match_operand's in the output
! pattern have the same indexes.  It is unknown, how many and what
! indexes would be used in the expression which would replace
! `match_dup', so such conflicts in indexes are inevitable.  To overcome
! this issue, `match_operands' and `match_operators', which were
! introduced into the output pattern, are renumerated when all
! `match_dup's are replaced.
  
!  Number of alternatives in `match_operand's introduced into the output
! template `M' could differ from the number of alternatives in the
! original pattern `N', so in the resultant pattern there would be `N*M'
  alternatives.  Thus, constraints from the original pattern would be
! duplicated `N' times, constraints from the output pattern would be
! duplicated `M' times, producing all possible combinations.
  
  
  File: gccint.info,  Node: Constant Definitions,  Next: Iterators,  Prev: Define Subst,  Up: Machine Desc
--- 27114,27179 ----
  
  File: gccint.info,  Node: Define Subst Pattern Matching,  Next: Define Subst Output Template,  Prev: Define Subst Example,  Up: Define Subst
  
! 16.21.2 Pattern Matching in 'define_subst'
  ------------------------------------------
  
! All expressions, allowed in 'define_insn' or 'define_expand', are
! allowed in the input-template of 'define_subst', except 'match_par_dup',
! 'match_scratch', 'match_parallel'.  The meanings of expressions in the
! input-template were changed:
  
!  'match_operand' matches any expression (possibly, a subtree in
! RTL-template), if modes of the 'match_operand' and this expression are
! the same, or mode of the 'match_operand' is 'VOIDmode', or this
! expression is 'match_dup', 'match_op_dup'.  If the expression is
! 'match_operand' too, and predicate of 'match_operand' from the input
  pattern is not empty, then the predicates are compared.  That can be
  used for more accurate filtering of accepted RTL-templates.
  
!  'match_operator' matches common operators (like 'plus', 'minus'),
! 'unspec', 'unspec_volatile' operators and 'match_operator's from the
! original pattern if the modes match and 'match_operator' from the input
  pattern has the same number of operands as the operator from the
  original pattern.
  
  
  File: gccint.info,  Node: Define Subst Output Template,  Prev: Define Subst Pattern Matching,  Up: Define Subst
  
! 16.21.3 Generation of output template in 'define_subst'
  -------------------------------------------------------
  
! If all necessary checks for 'define_subst' application pass, a new
  RTL-pattern, based on the output-template, is created to replace the old
  template.  Like in input-patterns, meanings of some RTL expressions are
! changed when they are used in output-patterns of a 'define_subst'.
! Thus, 'match_dup' is used for copying the whole expression from the
! original pattern, which matched corresponding 'match_operand' from the
  input pattern.
  
!  'match_dup N' is used in the output template to be replaced with the
! expression from the original pattern, which matched 'match_operand N'
! from the input pattern.  As a consequence, 'match_dup' cannot be used to
! point to 'match_operand's from the output pattern, it should always
! refer to a 'match_operand' from the input pattern.
  
   In the output template one can refer to the expressions from the
  original pattern and create new ones.  For instance, some operands could
! be added by means of standard 'match_operand'.
  
!  After replacing 'match_dup' with some RTL-subtree from the original
! pattern, it could happen that several 'match_operand's in the output
! pattern have the same indexes.  It is unknown, how many and what indexes
! would be used in the expression which would replace 'match_dup', so such
! conflicts in indexes are inevitable.  To overcome this issue,
! 'match_operands' and 'match_operators', which were introduced into the
! output pattern, are renumerated when all 'match_dup's are replaced.
  
!  Number of alternatives in 'match_operand's introduced into the output
! template 'M' could differ from the number of alternatives in the
! original pattern 'N', so in the resultant pattern there would be 'N*M'
  alternatives.  Thus, constraints from the original pattern would be
! duplicated 'N' times, constraints from the output pattern would be
! duplicated 'M' times, producing all possible combinations.
  
  
  File: gccint.info,  Node: Constant Definitions,  Next: Iterators,  Prev: Define Subst,  Up: Machine Desc
*************** File: gccint.info,  Node: Constant Defin
*** 27569,27579 ****
  Using literal constants inside instruction patterns reduces legibility
  and can be a maintenance problem.
  
!  To overcome this problem, you may use the `define_constants'
  expression.  It contains a vector of name-value pairs.  From that point
  on, wherever any of the names appears in the MD file, it is as if the
  corresponding value had been written instead.  You may use
! `define_constants' multiple times; each appearance adds more constants
  to the table.  It is an error to redefine a constant with a different
  value.
  
--- 27184,27194 ----
  Using literal constants inside instruction patterns reduces legibility
  and can be a maintenance problem.
  
!  To overcome this problem, you may use the 'define_constants'
  expression.  It contains a vector of name-value pairs.  From that point
  on, wherever any of the names appears in the MD file, it is as if the
  corresponding value had been written instead.  You may use
! 'define_constants' multiple times; each appearance adds more constants
  to the table.  It is an error to redefine a constant with a different
  value.
  
*************** value.
*** 27610,27616 ****
  in the insn-codes.h header file as #defines.
  
   You can also use the machine description file to define enumerations.
! Like the constants defined by `define_constant', these enumerations are
  visible to both the machine description file and the main C code.
  
   The syntax is as follows:
--- 27225,27231 ----
  in the insn-codes.h header file as #defines.
  
   You can also use the machine description file to define enumerations.
! Like the constants defined by 'define_constant', these enumerations are
  visible to both the machine description file and the main C code.
  
   The syntax is as follows:
*************** visible to both the machine description
*** 27623,27629 ****
       ])
  
   This definition causes the equivalent of the following C code to appear
! in `insn-constants.h':
  
       enum NAME {
         VALUE0 = 0,
--- 27238,27244 ----
       ])
  
   This definition causes the equivalent of the following C code to appear
! in 'insn-constants.h':
  
       enum NAME {
         VALUE0 = 0,
*************** in `insn-constants.h':
*** 27633,27649 ****
       };
       #define NUM_CNAME_VALUES (N + 1)
  
!  where CNAME is the capitalized form of NAME.  It also makes each
! VALUEI available in the machine description file, just as if it had
! been declared with:
  
       (define_constants [(VALUEI I)])
  
!  Each VALUEI is usually an upper-case identifier and usually begins
! with CNAME.
  
!  You can split the enumeration definition into as many statements as
! you like.  The above example is directly equivalent to:
  
       (define_c_enum "NAME" [VALUE0])
       (define_c_enum "NAME" [VALUE1])
--- 27248,27264 ----
       };
       #define NUM_CNAME_VALUES (N + 1)
  
!  where CNAME is the capitalized form of NAME.  It also makes each VALUEI
! available in the machine description file, just as if it had been
! declared with:
  
       (define_constants [(VALUEI I)])
  
!  Each VALUEI is usually an upper-case identifier and usually begins with
! CNAME.
  
!  You can split the enumeration definition into as many statements as you
! like.  The above example is directly equivalent to:
  
       (define_c_enum "NAME" [VALUE0])
       (define_c_enum "NAME" [VALUE1])
*************** you like.  The above example is directly
*** 27651,27684 ****
       (define_c_enum "NAME" [VALUEN])
  
   Splitting the enumeration helps to improve the modularity of each
! individual `.md' file.  For example, if a port defines its
! synchronization instructions in a separate `sync.md' file, it is
  convenient to define all synchronization-specific enumeration values in
! `sync.md' rather than in the main `.md' file.
  
   Some enumeration names have special significance to GCC:
  
! `unspecv'
!      If an enumeration called `unspecv' is defined, GCC will use it
!      when printing out `unspec_volatile' expressions.  For example:
  
            (define_c_enum "unspecv" [
              UNSPECV_BLOCKAGE
            ])
  
!      causes GCC to print `(unspec_volatile ... 0)' as:
  
            (unspec_volatile ... UNSPECV_BLOCKAGE)
  
! `unspec'
!      If an enumeration called `unspec' is defined, GCC will use it when
!      printing out `unspec' expressions.  GCC will also use it when
!      printing out `unspec_volatile' expressions unless an `unspecv'
       enumeration is also defined.  You can therefore decide whether to
       keep separate enumerations for volatile and non-volatile
       expressions or whether to use the same enumeration for both.
  
!  Another way of defining an enumeration is to use `define_enum':
  
       (define_enum "NAME" [
         VALUE0
--- 27266,27299 ----
       (define_c_enum "NAME" [VALUEN])
  
   Splitting the enumeration helps to improve the modularity of each
! individual '.md' file.  For example, if a port defines its
! synchronization instructions in a separate 'sync.md' file, it is
  convenient to define all synchronization-specific enumeration values in
! 'sync.md' rather than in the main '.md' file.
  
   Some enumeration names have special significance to GCC:
  
! 'unspecv'
!      If an enumeration called 'unspecv' is defined, GCC will use it when
!      printing out 'unspec_volatile' expressions.  For example:
  
            (define_c_enum "unspecv" [
              UNSPECV_BLOCKAGE
            ])
  
!      causes GCC to print '(unspec_volatile ... 0)' as:
  
            (unspec_volatile ... UNSPECV_BLOCKAGE)
  
! 'unspec'
!      If an enumeration called 'unspec' is defined, GCC will use it when
!      printing out 'unspec' expressions.  GCC will also use it when
!      printing out 'unspec_volatile' expressions unless an 'unspecv'
       enumeration is also defined.  You can therefore decide whether to
       keep separate enumerations for volatile and non-volatile
       expressions or whether to use the same enumeration for both.
  
!  Another way of defining an enumeration is to use 'define_enum':
  
       (define_enum "NAME" [
         VALUE0
*************** convenient to define all synchronization
*** 27697,27703 ****
       ])
  
   where CVALUEI is the capitalized form of VALUEI.  However, unlike
! `define_c_enum', the enumerations defined by `define_enum' can be used
  in attribute specifications (*note define_enum_attr::).
  
  
--- 27312,27318 ----
       ])
  
   where CVALUEI is the capitalized form of VALUEI.  However, unlike
! 'define_c_enum', the enumerations defined by 'define_enum' can be used
  in attribute specifications (*note define_enum_attr::).
  
  
*************** Ports often need to define similar patte
*** 27727,27743 ****
  modes.  For example:
  
     * If a processor has hardware support for both single and double
!      floating-point arithmetic, the `SFmode' patterns tend to be very
!      similar to the `DFmode' ones.
  
!    * If a port uses `SImode' pointers in one configuration and `DImode'
!      pointers in another, it will usually have very similar `SImode'
!      and `DImode' patterns for manipulating pointers.
  
!  Mode iterators allow several patterns to be instantiated from one
! `.md' file template.  They can be used with any type of rtx-based
! construct, such as a `define_insn', `define_split', or
! `define_peephole2'.
  
  * Menu:
  
--- 27342,27357 ----
  modes.  For example:
  
     * If a processor has hardware support for both single and double
!      floating-point arithmetic, the 'SFmode' patterns tend to be very
!      similar to the 'DFmode' ones.
  
!    * If a port uses 'SImode' pointers in one configuration and 'DImode'
!      pointers in another, it will usually have very similar 'SImode' and
!      'DImode' patterns for manipulating pointers.
  
!  Mode iterators allow several patterns to be instantiated from one '.md'
! file template.  They can be used with any type of rtx-based construct,
! such as a 'define_insn', 'define_split', or 'define_peephole2'.
  
  * Menu:
  
*************** The syntax for defining a mode iterator
*** 27755,27783 ****
  
       (define_mode_iterator NAME [(MODE1 "COND1") ... (MODEN "CONDN")])
  
!  This allows subsequent `.md' file constructs to use the mode suffix
! `:NAME'.  Every construct that does so will be expanded N times, once
! with every use of `:NAME' replaced by `:MODE1', once with every use
! replaced by `:MODE2', and so on.  In the expansion for a particular
  MODEI, every C condition will also require that CONDI be true.
  
   For example:
  
       (define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")])
  
!  defines a new mode suffix `:P'.  Every construct that uses `:P' will
! be expanded twice, once with every `:P' replaced by `:SI' and once with
! every `:P' replaced by `:DI'.  The `:SI' version will only apply if
! `Pmode == SImode' and the `:DI' version will only apply if `Pmode ==
  DImode'.
  
!  As with other `.md' conditions, an empty string is treated as "always
! true".  `(MODE "")' can also be abbreviated to `MODE'.  For example:
  
       (define_mode_iterator GPR [SI (DI "TARGET_64BIT")])
  
!  means that the `:DI' expansion only applies if `TARGET_64BIT' but that
! the `:SI' expansion has no such constraint.
  
   Iterators are applied in the order they are defined.  This can be
  significant if two iterators are used in a construct that requires
--- 27369,27397 ----
  
       (define_mode_iterator NAME [(MODE1 "COND1") ... (MODEN "CONDN")])
  
!  This allows subsequent '.md' file constructs to use the mode suffix
! ':NAME'.  Every construct that does so will be expanded N times, once
! with every use of ':NAME' replaced by ':MODE1', once with every use
! replaced by ':MODE2', and so on.  In the expansion for a particular
  MODEI, every C condition will also require that CONDI be true.
  
   For example:
  
       (define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")])
  
!  defines a new mode suffix ':P'.  Every construct that uses ':P' will be
! expanded twice, once with every ':P' replaced by ':SI' and once with
! every ':P' replaced by ':DI'.  The ':SI' version will only apply if
! 'Pmode == SImode' and the ':DI' version will only apply if 'Pmode ==
  DImode'.
  
!  As with other '.md' conditions, an empty string is treated as "always
! true".  '(MODE "")' can also be abbreviated to 'MODE'.  For example:
  
       (define_mode_iterator GPR [SI (DI "TARGET_64BIT")])
  
!  means that the ':DI' expansion only applies if 'TARGET_64BIT' but that
! the ':SI' expansion has no such constraint.
  
   Iterators are applied in the order they are defined.  This can be
  significant if two iterators are used in a construct that requires
*************** File: gccint.info,  Node: Substitutions,
*** 27789,27813 ****
  16.23.1.2 Substitution in Mode Iterators
  ........................................
  
! If an `.md' file construct uses mode iterators, each version of the
  construct will often need slightly different strings or modes.  For
  example:
  
!    * When a `define_expand' defines several `addM3' patterns (*note
       Standard Names::), each expander will need to use the appropriate
       mode name for M.
  
!    * When a `define_insn' defines several instruction patterns, each
       instruction will often use a different assembler mnemonic.
  
!    * When a `define_insn' requires operands with different modes, using
       an iterator for one of the operand modes usually requires a
       specific mode for the other operand(s).
  
   GCC supports such variations through a system of "mode attributes".
! There are two standard attributes: `mode', which is the name of the
! mode in lower case, and `MODE', which is the same thing in upper case.
! You can define other attributes using:
  
       (define_mode_attr NAME [(MODE1 "VALUE1") ... (MODEN "VALUEN")])
  
--- 27403,27427 ----
  16.23.1.2 Substitution in Mode Iterators
  ........................................
  
! If an '.md' file construct uses mode iterators, each version of the
  construct will often need slightly different strings or modes.  For
  example:
  
!    * When a 'define_expand' defines several 'addM3' patterns (*note
       Standard Names::), each expander will need to use the appropriate
       mode name for M.
  
!    * When a 'define_insn' defines several instruction patterns, each
       instruction will often use a different assembler mnemonic.
  
!    * When a 'define_insn' requires operands with different modes, using
       an iterator for one of the operand modes usually requires a
       specific mode for the other operand(s).
  
   GCC supports such variations through a system of "mode attributes".
! There are two standard attributes: 'mode', which is the name of the mode
! in lower case, and 'MODE', which is the same thing in upper case.  You
! can define other attributes using:
  
       (define_mode_attr NAME [(MODE1 "VALUE1") ... (MODEN "VALUEN")])
  
*************** You can define other attributes using:
*** 27815,27833 ****
  associated with MODEI.
  
   When GCC replaces some :ITERATOR with :MODE, it will scan each string
! and mode in the pattern for sequences of the form `<ITERATOR:ATTR>',
! where ATTR is the name of a mode attribute.  If the attribute is
! defined for MODE, the whole `<...>' sequence will be replaced by the
! appropriate attribute value.
  
!  For example, suppose an `.md' file has:
  
       (define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")])
       (define_mode_attr load [(SI "lw") (DI "ld")])
  
!  If one of the patterns that uses `:P' contains the string
! `"<P:load>\t%0,%1"', the `SI' version of that pattern will use
! `"lw\t%0,%1"' and the `DI' version will use `"ld\t%0,%1"'.
  
   Here is an example of using an attribute for a mode:
  
--- 27429,27447 ----
  associated with MODEI.
  
   When GCC replaces some :ITERATOR with :MODE, it will scan each string
! and mode in the pattern for sequences of the form '<ITERATOR:ATTR>',
! where ATTR is the name of a mode attribute.  If the attribute is defined
! for MODE, the whole '<...>' sequence will be replaced by the appropriate
! attribute value.
  
!  For example, suppose an '.md' file has:
  
       (define_mode_iterator P [(SI "Pmode == SImode") (DI "Pmode == DImode")])
       (define_mode_attr load [(SI "lw") (DI "ld")])
  
!  If one of the patterns that uses ':P' contains the string
! '"<P:load>\t%0,%1"', the 'SI' version of that pattern will use
! '"lw\t%0,%1"' and the 'DI' version will use '"ld\t%0,%1"'.
  
   Here is an example of using an attribute for a mode:
  
*************** appropriate attribute value.
*** 27836,27842 ****
       (define_insn ...
         (sign_extend:LONG (match_operand:<LONG:SHORT> ...)) ...)
  
!  The `ITERATOR:' prefix may be omitted, in which case the substitution
  will be attempted for every iterator expansion.
  
  
--- 27450,27456 ----
       (define_insn ...
         (sign_extend:LONG (match_operand:<LONG:SHORT> ...)) ...)
  
!  The 'ITERATOR:' prefix may be omitted, in which case the substitution
  will be attempted for every iterator expansion.
  
  
*************** and attributes (among others):
*** 27851,27857 ****
       (define_mode_iterator GPR [SI (DI "TARGET_64BIT")])
       (define_mode_attr d [(SI "") (DI "d")])
  
!  and uses the following template to define both `subsi3' and `subdi3':
  
       (define_insn "sub<mode>3"
         [(set (match_operand:GPR 0 "register_operand" "=d")
--- 27465,27471 ----
       (define_mode_iterator GPR [SI (DI "TARGET_64BIT")])
       (define_mode_attr d [(SI "") (DI "d")])
  
!  and uses the following template to define both 'subsi3' and 'subdi3':
  
       (define_insn "sub<mode>3"
         [(set (match_operand:GPR 0 "register_operand" "=d")
*************** times, once with all uses of NAME replac
*** 27904,27911 ****
  replaced by CODE2, and so on.  *Note Defining Mode Iterators::.
  
   It is possible to define attributes for codes as well as for modes.
! There are two standard code attributes: `code', the name of the code in
! lower case, and `CODE', the name of the code in upper case.  Other
  attributes are defined using:
  
       (define_code_attr NAME [(CODE1 "VALUE1") ... (CODEN "VALUEN")])
--- 27518,27525 ----
  replaced by CODE2, and so on.  *Note Defining Mode Iterators::.
  
   It is possible to define attributes for codes as well as for modes.
! There are two standard code attributes: 'code', the name of the code in
! lower case, and 'CODE', the name of the code in upper case.  Other
  attributes are defined using:
  
       (define_code_attr NAME [(CODE1 "VALUE1") ... (CODEN "VALUEN")])
*************** Iterators::.
*** 27969,27984 ****
  
       (define_int_iterator NAME [(INT1 "COND1") ... (INTN "CONDN")])
  
!  defines a pseudo integer constant NAME that can be instantiated as
! INTI if condition CONDI is true.  Each INT must have the same rtx
! format.  *Note RTL Classes::. Int iterators can appear in only those
! rtx fields that have 'i' as the specifier. This means that each INT has
! to be a constant defined using define_constant or define_c_enum.
  
   As with mode and code iterators, each pattern that uses NAME will be
! expanded N times, once with all uses of NAME replaced by INT1, once
! with all uses replaced by INT2, and so on.  *Note Defining Mode
! Iterators::.
  
   It is possible to define attributes for ints as well as for codes and
  modes.  Attributes are defined using:
--- 27583,27597 ----
  
       (define_int_iterator NAME [(INT1 "COND1") ... (INTN "CONDN")])
  
!  defines a pseudo integer constant NAME that can be instantiated as INTI
! if condition CONDI is true.  Each INT must have the same rtx format.
! *Note RTL Classes::.  Int iterators can appear in only those rtx fields
! that have 'i' as the specifier.  This means that each INT has to be a
! constant defined using define_constant or define_c_enum.
  
   As with mode and code iterators, each pattern that uses NAME will be
! expanded N times, once with all uses of NAME replaced by INT1, once with
! all uses replaced by INT2, and so on.  *Note Defining Mode Iterators::.
  
   It is possible to define attributes for ints as well as for codes and
  modes.  Attributes are defined using:
*************** modes.  Attributes are defined using:
*** 28001,28006 ****
--- 27614,27620 ----
         [(set_attr "type" "neon_vqneg_vqabs")]
       )
  
+ 
   This is equivalent to:
  
       (define_insn "neon_vqabs<mode>"
*************** modes.  Attributes are defined using:
*** 28023,28028 ****
--- 27637,27643 ----
         [(set_attr "type" "neon_vqneg_vqabs")]
       )
  
+ 
  
  File: gccint.info,  Node: Subst Iterators,  Prev: Int Iterators,  Up: Iterators
  
*************** used in RTL-pattern.
*** 28038,28051 ****
   Subst iterators transform templates in the following way: the templates
  are duplicated, the subst-attributes in these templates are replaced
  with the corresponding values, and a new attribute is implicitly added
! to the given `define_insn'/`define_expand'.  The name of the added
! attribute matches the name of `define_subst'.  Such attributes are
! declared implicitly, and it is not allowed to have a `define_attr'
! named as a `define_subst'.
  
!  Each subst iterator is linked to a `define_subst'.  It is declared
  implicitly by the first appearance of the corresponding
! `define_subst_attr', and it is not allowed to define it explicitly.
  
   Declarations of subst-attributes have the following syntax:
  
--- 27653,27666 ----
   Subst iterators transform templates in the following way: the templates
  are duplicated, the subst-attributes in these templates are replaced
  with the corresponding values, and a new attribute is implicitly added
! to the given 'define_insn'/'define_expand'.  The name of the added
! attribute matches the name of 'define_subst'.  Such attributes are
! declared implicitly, and it is not allowed to have a 'define_attr' named
! as a 'define_subst'.
  
!  Each subst iterator is linked to a 'define_subst'.  It is declared
  implicitly by the first appearance of the corresponding
! 'define_subst_attr', and it is not allowed to define it explicitly.
  
   Declarations of subst-attributes have the following syntax:
  
*************** implicitly by the first appearance of th
*** 28054,28063 ****
         "NO-SUBST-VALUE"
         "SUBST-APPLIED-VALUE")
  
!  NAME is a string with which the given subst-attribute could be
! referred to.
  
!  SUBST-NAME shows which `define_subst' should be applied to an
  RTL-template if the given subst-attribute is present in the
  RTL-template.
  
--- 27669,27678 ----
         "NO-SUBST-VALUE"
         "SUBST-APPLIED-VALUE")
  
!  NAME is a string with which the given subst-attribute could be referred
! to.
  
!  SUBST-NAME shows which 'define_subst' should be applied to an
  RTL-template if the given subst-attribute is present in the
  RTL-template.
  
*************** File: gccint.info,  Node: Target Macros,
*** 28073,28096 ****
  17 Target Description Macros and Functions
  ******************************************
  
! In addition to the file `MACHINE.md', a machine description includes a
! C header file conventionally given the name `MACHINE.h' and a C source
! file named `MACHINE.c'.  The header file defines numerous macros that
  convey the information about the target machine that does not fit into
! the scheme of the `.md' file.  The file `tm.h' should be a link to
! `MACHINE.h'.  The header file `config.h' includes `tm.h' and most
! compiler source files include `config.h'.  The source file defines a
! variable `targetm', which is a structure containing pointers to
! functions and data relating to the target machine.  `MACHINE.c' should
  also contain their definitions, if they are not defined elsewhere in
! GCC, and other functions called through the macros defined in the `.h'
  file.
  
  * Menu:
  
! * Target Structure::    The `targetm' variable.
  * Driver::              Controlling how the driver runs the compilation passes.
! * Run-time Target::     Defining `-m' options like `-m68000' and `-m68020'.
  * Per-Function Data::   Defining data structures for per-function information.
  * Storage Layout::      Defining sizes and alignments of data.
  * Type Layout::         Defining sizes and properties of basic user data types.
--- 27688,27711 ----
  17 Target Description Macros and Functions
  ******************************************
  
! In addition to the file 'MACHINE.md', a machine description includes a C
! header file conventionally given the name 'MACHINE.h' and a C source
! file named 'MACHINE.c'.  The header file defines numerous macros that
  convey the information about the target machine that does not fit into
! the scheme of the '.md' file.  The file 'tm.h' should be a link to
! 'MACHINE.h'.  The header file 'config.h' includes 'tm.h' and most
! compiler source files include 'config.h'.  The source file defines a
! variable 'targetm', which is a structure containing pointers to
! functions and data relating to the target machine.  'MACHINE.c' should
  also contain their definitions, if they are not defined elsewhere in
! GCC, and other functions called through the macros defined in the '.h'
  file.
  
  * Menu:
  
! * Target Structure::    The 'targetm' variable.
  * Driver::              Controlling how the driver runs the compilation passes.
! * Run-time Target::     Defining '-m' options like '-m68000' and '-m68020'.
  * Per-Function Data::   Defining data structures for per-function information.
  * Storage Layout::      Defining sizes and alignments of data.
  * Type Layout::         Defining sizes and properties of basic user data types.
*************** file.
*** 28101,28107 ****
  * Trampolines::         Code set up at run time to enter a nested function.
  * Library Calls::       Controlling how library routines are implicitly called.
  * Addressing Modes::    Defining addressing modes valid for memory operands.
! * Anchored Addresses::  Defining how `-fsection-anchors' should work.
  * Condition Code::      Defining how insns update the condition code.
  * Costs::               Defining relative costs of different operations.
  * Scheduling::          Adjusting the behavior of the instruction scheduler.
--- 27716,27722 ----
  * Trampolines::         Code set up at run time to enter a nested function.
  * Library Calls::       Controlling how library routines are implicitly called.
  * Addressing Modes::    Defining addressing modes valid for memory operands.
! * Anchored Addresses::  Defining how '-fsection-anchors' should work.
  * Condition Code::      Defining how insns update the condition code.
  * Costs::               Defining relative costs of different operations.
  * Scheduling::          Adjusting the behavior of the instruction scheduler.
*************** file.
*** 28111,28117 ****
  * Debugging Info::      Defining the format of debugging output.
  * Floating Point::      Handling floating point for cross-compilers.
  * Mode Switching::      Insertion of mode-switching instructions.
! * Target Attributes::   Defining target-specific uses of `__attribute__'.
  * Emulated TLS::        Emulated TLS support.
  * MIPS Coprocessors::   MIPS coprocessor support and how to customize it.
  * PCH Target::          Validity checking for precompiled headers.
--- 27726,27732 ----
  * Debugging Info::      Defining the format of debugging output.
  * Floating Point::      Handling floating point for cross-compilers.
  * Mode Switching::      Insertion of mode-switching instructions.
! * Target Attributes::   Defining target-specific uses of '__attribute__'.
  * Emulated TLS::        Emulated TLS support.
  * MIPS Coprocessors::   MIPS coprocessor support and how to customize it.
  * PCH Target::          Validity checking for precompiled headers.
*************** file.
*** 28122,28139 ****
  
  File: gccint.info,  Node: Target Structure,  Next: Driver,  Up: Target Macros
  
! 17.1 The Global `targetm' Variable
  ==================================
  
   -- Variable: struct gcc_target targetm
!      The target `.c' file must define the global `targetm' variable
       which contains pointers to functions and data relating to the
!      target machine.  The variable is declared in `target.h';
!      `target-def.h' defines the macro `TARGET_INITIALIZER' which is
!      used to initialize the variable, and macros for the default
!      initializers for elements of the structure.  The `.c' file should
!      override those macros for which the default definition is
!      inappropriate.  For example:
            #include "target.h"
            #include "target-def.h"
  
--- 27737,27754 ----
  
  File: gccint.info,  Node: Target Structure,  Next: Driver,  Up: Target Macros
  
! 17.1 The Global 'targetm' Variable
  ==================================
  
   -- Variable: struct gcc_target targetm
!      The target '.c' file must define the global 'targetm' variable
       which contains pointers to functions and data relating to the
!      target machine.  The variable is declared in 'target.h';
!      'target-def.h' defines the macro 'TARGET_INITIALIZER' which is used
!      to initialize the variable, and macros for the default initializers
!      for elements of the structure.  The '.c' file should override those
!      macros for which the default definition is inappropriate.  For
!      example:
            #include "target.h"
            #include "target-def.h"
  
*************** File: gccint.info,  Node: Target Structu
*** 28144,28174 ****
  
            struct gcc_target targetm = TARGET_INITIALIZER;
  
! Where a macro should be defined in the `.c' file in this manner to form
! part of the `targetm' structure, it is documented below as a "Target
  Hook" with a prototype.  Many macros will change in future from being
! defined in the `.h' file to being part of the `targetm' structure.
  
!  Similarly, there is a `targetcm' variable for hooks that are specific
  to front ends for C-family languages, documented as "C Target Hook".
! This is declared in `c-family/c-target.h', the initializer
! `TARGETCM_INITIALIZER' in `c-family/c-target-def.h'.  If targets
! initialize `targetcm' themselves, they should set
! `target_has_targetcm=yes' in `config.gcc'; otherwise a default
  definition is used.
  
!  Similarly, there is a `targetm_common' variable for hooks that are
  shared between the compiler driver and the compilers proper, documented
! as "Common Target Hook".  This is declared in `common/common-target.h',
! the initializer `TARGETM_COMMON_INITIALIZER' in
! `common/common-target-def.h'.  If targets initialize `targetm_common'
! themselves, they should set `target_has_targetm_common=yes' in
! `config.gcc'; otherwise a default definition is used.
  
  
  File: gccint.info,  Node: Driver,  Next: Run-time Target,  Prev: Target Structure,  Up: Target Macros
  
! 17.2 Controlling the Compilation Driver, `gcc'
  ==============================================
  
  You can control the compilation driver.
--- 27759,27789 ----
  
            struct gcc_target targetm = TARGET_INITIALIZER;
  
!  Where a macro should be defined in the '.c' file in this manner to form
! part of the 'targetm' structure, it is documented below as a "Target
  Hook" with a prototype.  Many macros will change in future from being
! defined in the '.h' file to being part of the 'targetm' structure.
  
!  Similarly, there is a 'targetcm' variable for hooks that are specific
  to front ends for C-family languages, documented as "C Target Hook".
! This is declared in 'c-family/c-target.h', the initializer
! 'TARGETCM_INITIALIZER' in 'c-family/c-target-def.h'.  If targets
! initialize 'targetcm' themselves, they should set
! 'target_has_targetcm=yes' in 'config.gcc'; otherwise a default
  definition is used.
  
!  Similarly, there is a 'targetm_common' variable for hooks that are
  shared between the compiler driver and the compilers proper, documented
! as "Common Target Hook".  This is declared in 'common/common-target.h',
! the initializer 'TARGETM_COMMON_INITIALIZER' in
! 'common/common-target-def.h'.  If targets initialize 'targetm_common'
! themselves, they should set 'target_has_targetm_common=yes' in
! 'config.gcc'; otherwise a default definition is used.
  
  
  File: gccint.info,  Node: Driver,  Next: Run-time Target,  Prev: Target Structure,  Up: Target Macros
  
! 17.2 Controlling the Compilation Driver, 'gcc'
  ==============================================
  
  You can control the compilation driver.
*************** You can control the compilation driver.
*** 28178,28188 ****
       initializer for an array of strings, with no surrounding braces.
  
       The driver applies these specs to its own command line between
!      loading default `specs' files (but not command-line specified
!      ones) and choosing the multilib directory or running any
!      subcommands.  It applies them in the order given, so each spec can
!      depend on the options added by earlier ones.  It is also possible
!      to remove options using `%<OPTION' in the usual way.
  
       This macro can be useful when a port has several interdependent
       target options.  It provides a way of standardizing the command
--- 27793,27803 ----
       initializer for an array of strings, with no surrounding braces.
  
       The driver applies these specs to its own command line between
!      loading default 'specs' files (but not command-line specified ones)
!      and choosing the multilib directory or running any subcommands.  It
!      applies them in the order given, so each spec can depend on the
!      options added by earlier ones.  It is also possible to remove
!      options using '%<OPTION' in the usual way.
  
       This macro can be useful when a port has several interdependent
       target options.  It provides a way of standardizing the command
*************** You can control the compilation driver.
*** 28192,28240 ****
  
   -- Macro: OPTION_DEFAULT_SPECS
       A list of specs used to support configure-time default options
!      (i.e.  `--with' options) in the driver.  It should be a suitable
       initializer for an array of structures, each containing two
       strings, without the outermost pair of surrounding braces.
  
       The first item in the pair is the name of the default.  This must
!      match the code in `config.gcc' for the target.  The second item is
       a spec to apply if a default with this name was specified.  The
!      string `%(VALUE)' in the spec will be replaced by the value of the
       default everywhere it occurs.
  
       The driver will apply these specs to its own command line between
!      loading default `specs' files and processing `DRIVER_SELF_SPECS',
!      using the same mechanism as `DRIVER_SELF_SPECS'.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: CPP_SPEC
       A C string constant that tells the GCC driver program options to
!      pass to CPP.  It can also specify how to translate options you
!      give to GCC into options for GCC to pass to the CPP.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: CPLUSPLUS_CPP_SPEC
!      This macro is just like `CPP_SPEC', but is used for C++, rather
       than C.  If you do not define this macro, then the value of
!      `CPP_SPEC' (if any) will be used instead.
  
   -- Macro: CC1_SPEC
       A C string constant that tells the GCC driver program options to
!      pass to `cc1', `cc1plus', `f771', and the other language front
!      ends.  It can also specify how to translate options you give to
!      GCC into options for GCC to pass to front ends.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: CC1PLUS_SPEC
       A C string constant that tells the GCC driver program options to
!      pass to `cc1plus'.  It can also specify how to translate options
!      you give to GCC into options for GCC to pass to the `cc1plus'.
  
       Do not define this macro if it does not need to do anything.  Note
!      that everything defined in CC1_SPEC is already passed to `cc1plus'
       so there is no need to duplicate the contents of CC1_SPEC in
       CC1PLUS_SPEC.
  
--- 27807,27855 ----
  
   -- Macro: OPTION_DEFAULT_SPECS
       A list of specs used to support configure-time default options
!      (i.e. '--with' options) in the driver.  It should be a suitable
       initializer for an array of structures, each containing two
       strings, without the outermost pair of surrounding braces.
  
       The first item in the pair is the name of the default.  This must
!      match the code in 'config.gcc' for the target.  The second item is
       a spec to apply if a default with this name was specified.  The
!      string '%(VALUE)' in the spec will be replaced by the value of the
       default everywhere it occurs.
  
       The driver will apply these specs to its own command line between
!      loading default 'specs' files and processing 'DRIVER_SELF_SPECS',
!      using the same mechanism as 'DRIVER_SELF_SPECS'.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: CPP_SPEC
       A C string constant that tells the GCC driver program options to
!      pass to CPP.  It can also specify how to translate options you give
!      to GCC into options for GCC to pass to the CPP.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: CPLUSPLUS_CPP_SPEC
!      This macro is just like 'CPP_SPEC', but is used for C++, rather
       than C.  If you do not define this macro, then the value of
!      'CPP_SPEC' (if any) will be used instead.
  
   -- Macro: CC1_SPEC
       A C string constant that tells the GCC driver program options to
!      pass to 'cc1', 'cc1plus', 'f771', and the other language front
!      ends.  It can also specify how to translate options you give to GCC
!      into options for GCC to pass to front ends.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: CC1PLUS_SPEC
       A C string constant that tells the GCC driver program options to
!      pass to 'cc1plus'.  It can also specify how to translate options
!      you give to GCC into options for GCC to pass to the 'cc1plus'.
  
       Do not define this macro if it does not need to do anything.  Note
!      that everything defined in CC1_SPEC is already passed to 'cc1plus'
       so there is no need to duplicate the contents of CC1_SPEC in
       CC1PLUS_SPEC.
  
*************** You can control the compilation driver.
*** 28242,28269 ****
       A C string constant that tells the GCC driver program options to
       pass to the assembler.  It can also specify how to translate
       options you give to GCC into options for GCC to pass to the
!      assembler.  See the file `sun3.h' for an example of this.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: ASM_FINAL_SPEC
       A C string constant that tells the GCC driver program how to run
       any programs which cleanup after the normal assembler.  Normally,
!      this is not needed.  See the file `mips.h' for an example of this.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: AS_NEEDS_DASH_FOR_PIPED_INPUT
       Define this macro, with no value, if the driver should give the
!      assembler an argument consisting of a single dash, `-', to
!      instruct it to read from its standard input (which will be a pipe
!      connected to the output of the compiler proper).  This argument is
!      given after any `-o' option specifying the name of the output file.
  
       If you do not define this macro, the assembler is assumed to read
       its standard input if given no non-option arguments.  If your
!      assembler cannot read standard input at all, use a `%{pipe:%e}'
!      construct; see `mips.h' for instance.
  
   -- Macro: LINK_SPEC
       A C string constant that tells the GCC driver program options to
--- 27857,27884 ----
       A C string constant that tells the GCC driver program options to
       pass to the assembler.  It can also specify how to translate
       options you give to GCC into options for GCC to pass to the
!      assembler.  See the file 'sun3.h' for an example of this.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: ASM_FINAL_SPEC
       A C string constant that tells the GCC driver program how to run
       any programs which cleanup after the normal assembler.  Normally,
!      this is not needed.  See the file 'mips.h' for an example of this.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: AS_NEEDS_DASH_FOR_PIPED_INPUT
       Define this macro, with no value, if the driver should give the
!      assembler an argument consisting of a single dash, '-', to instruct
!      it to read from its standard input (which will be a pipe connected
!      to the output of the compiler proper).  This argument is given
!      after any '-o' option specifying the name of the output file.
  
       If you do not define this macro, the assembler is assumed to read
       its standard input if given no non-option arguments.  If your
!      assembler cannot read standard input at all, use a '%{pipe:%e}'
!      construct; see 'mips.h' for instance.
  
   -- Macro: LINK_SPEC
       A C string constant that tells the GCC driver program options to
*************** You can control the compilation driver.
*** 28273,28340 ****
       Do not define this macro if it does not need to do anything.
  
   -- Macro: LIB_SPEC
!      Another C string constant used much like `LINK_SPEC'.  The
!      difference between the two is that `LIB_SPEC' is used at the end
!      of the command given to the linker.
  
       If this macro is not defined, a default is provided that loads the
!      standard C library from the usual place.  See `gcc.c'.
  
   -- Macro: LIBGCC_SPEC
!      Another C string constant that tells the GCC driver program how
!      and when to place a reference to `libgcc.a' into the linker
!      command line.  This constant is placed both before and after the
!      value of `LIB_SPEC'.
  
       If this macro is not defined, the GCC driver provides a default
!      that passes the string `-lgcc' to the linker.
  
   -- Macro: REAL_LIBGCC_SPEC
!      By default, if `ENABLE_SHARED_LIBGCC' is defined, the
!      `LIBGCC_SPEC' is not directly used by the driver program but is
!      instead modified to refer to different versions of `libgcc.a'
!      depending on the values of the command line flags `-static',
!      `-shared', `-static-libgcc', and `-shared-libgcc'.  On targets
!      where these modifications are inappropriate, define
!      `REAL_LIBGCC_SPEC' instead.  `REAL_LIBGCC_SPEC' tells the driver
!      how to place a reference to `libgcc' on the link command line,
!      but, unlike `LIBGCC_SPEC', it is used unmodified.
  
   -- Macro: USE_LD_AS_NEEDED
!      A macro that controls the modifications to `LIBGCC_SPEC' mentioned
!      in `REAL_LIBGCC_SPEC'.  If nonzero, a spec will be generated that
!      uses `--as-needed' or equivalent options and the shared `libgcc'
!      in place of the static exception handler library, when linking
!      without any of `-static', `-static-libgcc', or `-shared-libgcc'.
  
   -- Macro: LINK_EH_SPEC
!      If defined, this C string constant is added to `LINK_SPEC'.  When
!      `USE_LD_AS_NEEDED' is zero or undefined, it also affects the
!      modifications to `LIBGCC_SPEC' mentioned in `REAL_LIBGCC_SPEC'.
  
   -- Macro: STARTFILE_SPEC
!      Another C string constant used much like `LINK_SPEC'.  The
!      difference between the two is that `STARTFILE_SPEC' is used at the
       very beginning of the command given to the linker.
  
       If this macro is not defined, a default is provided that loads the
!      standard C startup file from the usual place.  See `gcc.c'.
  
   -- Macro: ENDFILE_SPEC
!      Another C string constant used much like `LINK_SPEC'.  The
!      difference between the two is that `ENDFILE_SPEC' is used at the
       very end of the command given to the linker.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: THREAD_MODEL_SPEC
!      GCC `-v' will print the thread model GCC was configured to use.
       However, this doesn't work on platforms that are multilibbed on
       thread models, such as AIX 4.3.  On such platforms, define
!      `THREAD_MODEL_SPEC' such that it evaluates to a string without
!      blanks that names one of the recognized thread models.  `%*', the
       default value of this macro, will expand to the value of
!      `thread_file' set in `config.gcc'.
  
   -- Macro: SYSROOT_SUFFIX_SPEC
       Define this macro to add a suffix to the target sysroot when GCC is
--- 27888,27955 ----
       Do not define this macro if it does not need to do anything.
  
   -- Macro: LIB_SPEC
!      Another C string constant used much like 'LINK_SPEC'.  The
!      difference between the two is that 'LIB_SPEC' is used at the end of
!      the command given to the linker.
  
       If this macro is not defined, a default is provided that loads the
!      standard C library from the usual place.  See 'gcc.c'.
  
   -- Macro: LIBGCC_SPEC
!      Another C string constant that tells the GCC driver program how and
!      when to place a reference to 'libgcc.a' into the linker command
!      line.  This constant is placed both before and after the value of
!      'LIB_SPEC'.
  
       If this macro is not defined, the GCC driver provides a default
!      that passes the string '-lgcc' to the linker.
  
   -- Macro: REAL_LIBGCC_SPEC
!      By default, if 'ENABLE_SHARED_LIBGCC' is defined, the 'LIBGCC_SPEC'
!      is not directly used by the driver program but is instead modified
!      to refer to different versions of 'libgcc.a' depending on the
!      values of the command line flags '-static', '-shared',
!      '-static-libgcc', and '-shared-libgcc'.  On targets where these
!      modifications are inappropriate, define 'REAL_LIBGCC_SPEC' instead.
!      'REAL_LIBGCC_SPEC' tells the driver how to place a reference to
!      'libgcc' on the link command line, but, unlike 'LIBGCC_SPEC', it is
!      used unmodified.
  
   -- Macro: USE_LD_AS_NEEDED
!      A macro that controls the modifications to 'LIBGCC_SPEC' mentioned
!      in 'REAL_LIBGCC_SPEC'.  If nonzero, a spec will be generated that
!      uses '--as-needed' or equivalent options and the shared 'libgcc' in
!      place of the static exception handler library, when linking without
!      any of '-static', '-static-libgcc', or '-shared-libgcc'.
  
   -- Macro: LINK_EH_SPEC
!      If defined, this C string constant is added to 'LINK_SPEC'.  When
!      'USE_LD_AS_NEEDED' is zero or undefined, it also affects the
!      modifications to 'LIBGCC_SPEC' mentioned in 'REAL_LIBGCC_SPEC'.
  
   -- Macro: STARTFILE_SPEC
!      Another C string constant used much like 'LINK_SPEC'.  The
!      difference between the two is that 'STARTFILE_SPEC' is used at the
       very beginning of the command given to the linker.
  
       If this macro is not defined, a default is provided that loads the
!      standard C startup file from the usual place.  See 'gcc.c'.
  
   -- Macro: ENDFILE_SPEC
!      Another C string constant used much like 'LINK_SPEC'.  The
!      difference between the two is that 'ENDFILE_SPEC' is used at the
       very end of the command given to the linker.
  
       Do not define this macro if it does not need to do anything.
  
   -- Macro: THREAD_MODEL_SPEC
!      GCC '-v' will print the thread model GCC was configured to use.
       However, this doesn't work on platforms that are multilibbed on
       thread models, such as AIX 4.3.  On such platforms, define
!      'THREAD_MODEL_SPEC' such that it evaluates to a string without
!      blanks that names one of the recognized thread models.  '%*', the
       default value of this macro, will expand to the value of
!      'thread_file' set in 'config.gcc'.
  
   -- Macro: SYSROOT_SUFFIX_SPEC
       Define this macro to add a suffix to the target sysroot when GCC is
*************** You can control the compilation driver.
*** 28343,28356 ****
  
   -- Macro: SYSROOT_HEADERS_SUFFIX_SPEC
       Define this macro to add a headers_suffix to the target sysroot
!      when GCC is configured with a sysroot.  This will cause GCC to
!      pass the updated sysroot+headers_suffix to CPP, causing it to
!      search for usr/include, et al, within sysroot+headers_suffix.
  
   -- Macro: EXTRA_SPECS
       Define this macro to provide additional specifications to put in
!      the `specs' file that can be used in various specifications like
!      `CC1_SPEC'.
  
       The definition should be an initializer for an array of structures,
       containing a string constant, that defines the specification name,
--- 27958,27971 ----
  
   -- Macro: SYSROOT_HEADERS_SUFFIX_SPEC
       Define this macro to add a headers_suffix to the target sysroot
!      when GCC is configured with a sysroot.  This will cause GCC to pass
!      the updated sysroot+headers_suffix to CPP, causing it to search for
!      usr/include, et al, within sysroot+headers_suffix.
  
   -- Macro: EXTRA_SPECS
       Define this macro to provide additional specifications to put in
!      the 'specs' file that can be used in various specifications like
!      'CC1_SPEC'.
  
       The definition should be an initializer for an array of structures,
       containing a string constant, that defines the specification name,
*************** You can control the compilation driver.
*** 28358,28381 ****
  
       Do not define this macro if it does not need to do anything.
  
!      `EXTRA_SPECS' is useful when an architecture contains several
!      related targets, which have various `..._SPECS' which are similar
       to each other, and the maintainer would like one central place to
       keep these definitions.
  
!      For example, the PowerPC System V.4 targets use `EXTRA_SPECS' to
!      define either `_CALL_SYSV' when the System V calling sequence is
!      used or `_CALL_AIX' when the older AIX-based calling sequence is
       used.
  
!      The `config/rs6000/rs6000.h' target file defines:
  
            #define EXTRA_SPECS \
              { "cpp_sysv_default", CPP_SYSV_DEFAULT },
  
            #define CPP_SYS_DEFAULT ""
  
!      The `config/rs6000/sysv.h' target file defines:
            #undef CPP_SPEC
            #define CPP_SPEC \
            "%{posix: -D_POSIX_SOURCE } \
--- 27973,27996 ----
  
       Do not define this macro if it does not need to do anything.
  
!      'EXTRA_SPECS' is useful when an architecture contains several
!      related targets, which have various '..._SPECS' which are similar
       to each other, and the maintainer would like one central place to
       keep these definitions.
  
!      For example, the PowerPC System V.4 targets use 'EXTRA_SPECS' to
!      define either '_CALL_SYSV' when the System V calling sequence is
!      used or '_CALL_AIX' when the older AIX-based calling sequence is
       used.
  
!      The 'config/rs6000/rs6000.h' target file defines:
  
            #define EXTRA_SPECS \
              { "cpp_sysv_default", CPP_SYSV_DEFAULT },
  
            #define CPP_SYS_DEFAULT ""
  
!      The 'config/rs6000/sysv.h' target file defines:
            #undef CPP_SPEC
            #define CPP_SPEC \
            "%{posix: -D_POSIX_SOURCE } \
*************** You can control the compilation driver.
*** 28386,28405 ****
            #undef CPP_SYSV_DEFAULT
            #define CPP_SYSV_DEFAULT "-D_CALL_SYSV"
  
!      while the `config/rs6000/eabiaix.h' target file defines
!      `CPP_SYSV_DEFAULT' as:
  
            #undef CPP_SYSV_DEFAULT
            #define CPP_SYSV_DEFAULT "-D_CALL_AIX"
  
   -- Macro: LINK_LIBGCC_SPECIAL_1
       Define this macro if the driver program should find the library
!      `libgcc.a'.  If you do not define this macro, the driver program
!      will pass the argument `-lgcc' to tell the linker to do the search.
  
   -- Macro: LINK_GCC_C_SEQUENCE_SPEC
       The sequence in which libgcc and libc are specified to the linker.
!      By default this is `%G %L %G'.
  
   -- Macro: POST_LINK_SPEC
       Define this macro to add additional steps to be executed after
--- 28001,28020 ----
            #undef CPP_SYSV_DEFAULT
            #define CPP_SYSV_DEFAULT "-D_CALL_SYSV"
  
!      while the 'config/rs6000/eabiaix.h' target file defines
!      'CPP_SYSV_DEFAULT' as:
  
            #undef CPP_SYSV_DEFAULT
            #define CPP_SYSV_DEFAULT "-D_CALL_AIX"
  
   -- Macro: LINK_LIBGCC_SPECIAL_1
       Define this macro if the driver program should find the library
!      'libgcc.a'.  If you do not define this macro, the driver program
!      will pass the argument '-lgcc' to tell the linker to do the search.
  
   -- Macro: LINK_GCC_C_SEQUENCE_SPEC
       The sequence in which libgcc and libc are specified to the linker.
!      By default this is '%G %L %G'.
  
   -- Macro: POST_LINK_SPEC
       Define this macro to add additional steps to be executed after
*************** You can control the compilation driver.
*** 28407,28472 ****
  
   -- Macro: LINK_COMMAND_SPEC
       A C string constant giving the complete command line need to
!      execute the linker.  When you do this, you will need to update
!      your port each time a change is made to the link command line
!      within `gcc.c'.  Therefore, define this macro only if you need to
       completely redefine the command line for invoking the linker and
       there is no other way to accomplish the effect you need.
       Overriding this macro may be avoidable by overriding
!      `LINK_GCC_C_SEQUENCE_SPEC' instead.
  
   -- Common Target Hook: bool TARGET_ALWAYS_STRIP_DOTDOT
!      True if `..' components should always be removed from directory
       names computed relative to GCC's internal directories, false
       (default) if such components should be preserved and directory
       names containing them passed to other tools such as the linker.
  
   -- Macro: MULTILIB_DEFAULTS
!      Define this macro as a C expression for the initializer of an
!      array of string to tell the driver program which options are
!      defaults for this target and thus do not need to be handled
!      specially when using `MULTILIB_OPTIONS'.
  
!      Do not define this macro if `MULTILIB_OPTIONS' is not defined in
       the target makefile fragment or if none of the options listed in
!      `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.
  
   -- Macro: RELATIVE_PREFIX_NOT_LINKDIR
!      Define this macro to tell `gcc' that it should only translate a
!      `-B' prefix into a `-L' linker option if the prefix indicates an
       absolute file name.
  
   -- Macro: MD_EXEC_PREFIX
       If defined, this macro is an additional prefix to try after
!      `STANDARD_EXEC_PREFIX'.  `MD_EXEC_PREFIX' is not searched when the
       compiler is built as a cross compiler.  If you define
!      `MD_EXEC_PREFIX', then be sure to add it to the list of
!      directories used to find the assembler in `configure.ac'.
  
   -- Macro: STANDARD_STARTFILE_PREFIX
       Define this macro as a C string constant if you wish to override
!      the standard choice of `libdir' as the default prefix to try when
!      searching for startup files such as `crt0.o'.
!      `STANDARD_STARTFILE_PREFIX' is not searched when the compiler is
       built as a cross compiler.
  
   -- Macro: STANDARD_STARTFILE_PREFIX_1
       Define this macro as a C string constant if you wish to override
!      the standard choice of `/lib' as a prefix to try after the default
!      prefix when searching for startup files such as `crt0.o'.
!      `STANDARD_STARTFILE_PREFIX_1' is not searched when the compiler is
       built as a cross compiler.
  
   -- Macro: STANDARD_STARTFILE_PREFIX_2
       Define this macro as a C string constant if you wish to override
!      the standard choice of `/lib' as yet another prefix to try after
       the default prefix when searching for startup files such as
!      `crt0.o'.  `STANDARD_STARTFILE_PREFIX_2' is not searched when the
       compiler is built as a cross compiler.
  
   -- Macro: MD_STARTFILE_PREFIX
       If defined, this macro supplies an additional prefix to try after
!      the standard prefixes.  `MD_EXEC_PREFIX' is not searched when the
       compiler is built as a cross compiler.
  
   -- Macro: MD_STARTFILE_PREFIX_1
--- 28022,28087 ----
  
   -- Macro: LINK_COMMAND_SPEC
       A C string constant giving the complete command line need to
!      execute the linker.  When you do this, you will need to update your
!      port each time a change is made to the link command line within
!      'gcc.c'.  Therefore, define this macro only if you need to
       completely redefine the command line for invoking the linker and
       there is no other way to accomplish the effect you need.
       Overriding this macro may be avoidable by overriding
!      'LINK_GCC_C_SEQUENCE_SPEC' instead.
  
   -- Common Target Hook: bool TARGET_ALWAYS_STRIP_DOTDOT
!      True if '..' components should always be removed from directory
       names computed relative to GCC's internal directories, false
       (default) if such components should be preserved and directory
       names containing them passed to other tools such as the linker.
  
   -- Macro: MULTILIB_DEFAULTS
!      Define this macro as a C expression for the initializer of an array
!      of string to tell the driver program which options are defaults for
!      this target and thus do not need to be handled specially when using
!      'MULTILIB_OPTIONS'.
  
!      Do not define this macro if 'MULTILIB_OPTIONS' is not defined in
       the target makefile fragment or if none of the options listed in
!      'MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.
  
   -- Macro: RELATIVE_PREFIX_NOT_LINKDIR
!      Define this macro to tell 'gcc' that it should only translate a
!      '-B' prefix into a '-L' linker option if the prefix indicates an
       absolute file name.
  
   -- Macro: MD_EXEC_PREFIX
       If defined, this macro is an additional prefix to try after
!      'STANDARD_EXEC_PREFIX'.  'MD_EXEC_PREFIX' is not searched when the
       compiler is built as a cross compiler.  If you define
!      'MD_EXEC_PREFIX', then be sure to add it to the list of directories
!      used to find the assembler in 'configure.ac'.
  
   -- Macro: STANDARD_STARTFILE_PREFIX
       Define this macro as a C string constant if you wish to override
!      the standard choice of 'libdir' as the default prefix to try when
!      searching for startup files such as 'crt0.o'.
!      'STANDARD_STARTFILE_PREFIX' is not searched when the compiler is
       built as a cross compiler.
  
   -- Macro: STANDARD_STARTFILE_PREFIX_1
       Define this macro as a C string constant if you wish to override
!      the standard choice of '/lib' as a prefix to try after the default
!      prefix when searching for startup files such as 'crt0.o'.
!      'STANDARD_STARTFILE_PREFIX_1' is not searched when the compiler is
       built as a cross compiler.
  
   -- Macro: STANDARD_STARTFILE_PREFIX_2
       Define this macro as a C string constant if you wish to override
!      the standard choice of '/lib' as yet another prefix to try after
       the default prefix when searching for startup files such as
!      'crt0.o'.  'STANDARD_STARTFILE_PREFIX_2' is not searched when the
       compiler is built as a cross compiler.
  
   -- Macro: MD_STARTFILE_PREFIX
       If defined, this macro supplies an additional prefix to try after
!      the standard prefixes.  'MD_EXEC_PREFIX' is not searched when the
       compiler is built as a cross compiler.
  
   -- Macro: MD_STARTFILE_PREFIX_1
*************** You can control the compilation driver.
*** 28478,28522 ****
       Define this macro as a C string constant if you wish to set
       environment variables for programs called by the driver, such as
       the assembler and loader.  The driver passes the value of this
!      macro to `putenv' to initialize the necessary environment
       variables.
  
   -- Macro: LOCAL_INCLUDE_DIR
       Define this macro as a C string constant if you wish to override
!      the standard choice of `/usr/local/include' as the default prefix
!      to try when searching for local header files.  `LOCAL_INCLUDE_DIR'
!      comes before `NATIVE_SYSTEM_HEADER_DIR' (set in `config.gcc',
!      normally `/usr/include') in the search order.
  
!      Cross compilers do not search either `/usr/local/include' or its
       replacement.
  
   -- Macro: NATIVE_SYSTEM_HEADER_COMPONENT
!      The "component" corresponding to `NATIVE_SYSTEM_HEADER_DIR'.  See
!      `INCLUDE_DEFAULTS', below, for the description of components.  If
       you do not define this macro, no component is used.
  
   -- Macro: INCLUDE_DEFAULTS
!      Define this macro if you wish to override the entire default
!      search path for include files.  For a native compiler, the default
!      search path usually consists of `GCC_INCLUDE_DIR',
!      `LOCAL_INCLUDE_DIR', `GPLUSPLUS_INCLUDE_DIR', and
!      `NATIVE_SYSTEM_HEADER_DIR'.  In addition, `GPLUSPLUS_INCLUDE_DIR'
!      and `GCC_INCLUDE_DIR' are defined automatically by `Makefile', and
!      specify private search areas for GCC.  The directory
!      `GPLUSPLUS_INCLUDE_DIR' is used only for C++ programs.
  
       The definition should be an initializer for an array of structures.
       Each array element should have four elements: the directory name (a
       string constant), the component name (also a string constant), a
!      flag for C++-only directories, and a flag showing that the
!      includes in the directory don't need to be wrapped in `extern `C''
!      when compiling C++.  Mark the end of the array with a null element.
  
       The component name denotes what GNU package the include file is
       part of, if any, in all uppercase letters.  For example, it might
!      be `GCC' or `BINUTILS'.  If the package is part of a
!      vendor-supplied operating system, code the component name as `0'.
  
       For example, here is the definition used for VAX/VMS:
  
--- 28093,28137 ----
       Define this macro as a C string constant if you wish to set
       environment variables for programs called by the driver, such as
       the assembler and loader.  The driver passes the value of this
!      macro to 'putenv' to initialize the necessary environment
       variables.
  
   -- Macro: LOCAL_INCLUDE_DIR
       Define this macro as a C string constant if you wish to override
!      the standard choice of '/usr/local/include' as the default prefix
!      to try when searching for local header files.  'LOCAL_INCLUDE_DIR'
!      comes before 'NATIVE_SYSTEM_HEADER_DIR' (set in 'config.gcc',
!      normally '/usr/include') in the search order.
  
!      Cross compilers do not search either '/usr/local/include' or its
       replacement.
  
   -- Macro: NATIVE_SYSTEM_HEADER_COMPONENT
!      The "component" corresponding to 'NATIVE_SYSTEM_HEADER_DIR'.  See
!      'INCLUDE_DEFAULTS', below, for the description of components.  If
       you do not define this macro, no component is used.
  
   -- Macro: INCLUDE_DEFAULTS
!      Define this macro if you wish to override the entire default search
!      path for include files.  For a native compiler, the default search
!      path usually consists of 'GCC_INCLUDE_DIR', 'LOCAL_INCLUDE_DIR',
!      'GPLUSPLUS_INCLUDE_DIR', and 'NATIVE_SYSTEM_HEADER_DIR'.  In
!      addition, 'GPLUSPLUS_INCLUDE_DIR' and 'GCC_INCLUDE_DIR' are defined
!      automatically by 'Makefile', and specify private search areas for
!      GCC.  The directory 'GPLUSPLUS_INCLUDE_DIR' is used only for C++
!      programs.
  
       The definition should be an initializer for an array of structures.
       Each array element should have four elements: the directory name (a
       string constant), the component name (also a string constant), a
!      flag for C++-only directories, and a flag showing that the includes
!      in the directory don't need to be wrapped in 'extern 'C'' when
!      compiling C++.  Mark the end of the array with a null element.
  
       The component name denotes what GNU package the include file is
       part of, if any, in all uppercase letters.  For example, it might
!      be 'GCC' or 'BINUTILS'.  If the package is part of a
!      vendor-supplied operating system, code the component name as '0'.
  
       For example, here is the definition used for VAX/VMS:
  
*************** You can control the compilation driver.
*** 28531,28596 ****
  
   Here is the order of prefixes tried for exec files:
  
!   1. Any prefixes specified by the user with `-B'.
  
!   2. The environment variable `GCC_EXEC_PREFIX' or, if `GCC_EXEC_PREFIX'
       is not set and the compiler has not been installed in the
       configure-time PREFIX, the location in which the compiler has
       actually been installed.
  
    3. The directories specified by the environment variable
!      `COMPILER_PATH'.
  
!   4. The macro `STANDARD_EXEC_PREFIX', if the compiler has been
       installed in the configured-time PREFIX.
  
!   5. The location `/usr/libexec/gcc/', but only if this is a native
       compiler.
  
!   6. The location `/usr/lib/gcc/', but only if this is a native
       compiler.
  
!   7. The macro `MD_EXEC_PREFIX', if defined, but only if this is a
       native compiler.
  
   Here is the order of prefixes tried for startfiles:
  
!   1. Any prefixes specified by the user with `-B'.
  
!   2. The environment variable `GCC_EXEC_PREFIX' or its automatically
       determined value based on the installed toolchain location.
  
    3. The directories specified by the environment variable
!      `LIBRARY_PATH' (or port-specific name; native only, cross
!      compilers do not use this).
  
!   4. The macro `STANDARD_EXEC_PREFIX', but only if the toolchain is
       installed in the configured PREFIX or this is a native compiler.
  
!   5. The location `/usr/lib/gcc/', but only if this is a native
       compiler.
  
!   6. The macro `MD_EXEC_PREFIX', if defined, but only if this is a
       native compiler.
  
!   7. The macro `MD_STARTFILE_PREFIX', if defined, but only if this is a
       native compiler, or we have a target system root.
  
!   8. The macro `MD_STARTFILE_PREFIX_1', if defined, but only if this is
       a native compiler, or we have a target system root.
  
!   9. The macro `STANDARD_STARTFILE_PREFIX', with any sysroot
       modifications.  If this path is relative it will be prefixed by
!      `GCC_EXEC_PREFIX' and the machine suffix or `STANDARD_EXEC_PREFIX'
       and the machine suffix.
  
!  10. The macro `STANDARD_STARTFILE_PREFIX_1', but only if this is a
!      native compiler, or we have a target system root. The default for
!      this macro is `/lib/'.
  
!  11. The macro `STANDARD_STARTFILE_PREFIX_2', but only if this is a
!      native compiler, or we have a target system root. The default for
!      this macro is `/usr/lib/'.
  
  
  File: gccint.info,  Node: Run-time Target,  Next: Per-Function Data,  Prev: Driver,  Up: Target Macros
--- 28146,28211 ----
  
   Here is the order of prefixes tried for exec files:
  
!   1. Any prefixes specified by the user with '-B'.
  
!   2. The environment variable 'GCC_EXEC_PREFIX' or, if 'GCC_EXEC_PREFIX'
       is not set and the compiler has not been installed in the
       configure-time PREFIX, the location in which the compiler has
       actually been installed.
  
    3. The directories specified by the environment variable
!      'COMPILER_PATH'.
  
!   4. The macro 'STANDARD_EXEC_PREFIX', if the compiler has been
       installed in the configured-time PREFIX.
  
!   5. The location '/usr/libexec/gcc/', but only if this is a native
       compiler.
  
!   6. The location '/usr/lib/gcc/', but only if this is a native
       compiler.
  
!   7. The macro 'MD_EXEC_PREFIX', if defined, but only if this is a
       native compiler.
  
   Here is the order of prefixes tried for startfiles:
  
!   1. Any prefixes specified by the user with '-B'.
  
!   2. The environment variable 'GCC_EXEC_PREFIX' or its automatically
       determined value based on the installed toolchain location.
  
    3. The directories specified by the environment variable
!      'LIBRARY_PATH' (or port-specific name; native only, cross compilers
!      do not use this).
  
!   4. The macro 'STANDARD_EXEC_PREFIX', but only if the toolchain is
       installed in the configured PREFIX or this is a native compiler.
  
!   5. The location '/usr/lib/gcc/', but only if this is a native
       compiler.
  
!   6. The macro 'MD_EXEC_PREFIX', if defined, but only if this is a
       native compiler.
  
!   7. The macro 'MD_STARTFILE_PREFIX', if defined, but only if this is a
       native compiler, or we have a target system root.
  
!   8. The macro 'MD_STARTFILE_PREFIX_1', if defined, but only if this is
       a native compiler, or we have a target system root.
  
!   9. The macro 'STANDARD_STARTFILE_PREFIX', with any sysroot
       modifications.  If this path is relative it will be prefixed by
!      'GCC_EXEC_PREFIX' and the machine suffix or 'STANDARD_EXEC_PREFIX'
       and the machine suffix.
  
!   10. The macro 'STANDARD_STARTFILE_PREFIX_1', but only if this is a
!      native compiler, or we have a target system root.  The default for
!      this macro is '/lib/'.
  
!   11. The macro 'STANDARD_STARTFILE_PREFIX_2', but only if this is a
!      native compiler, or we have a target system root.  The default for
!      this macro is '/usr/lib/'.
  
  
  File: gccint.info,  Node: Run-time Target,  Next: Per-Function Data,  Prev: Driver,  Up: Target Macros
*************** Here are run-time target specifications.
*** 28603,28715 ****
   -- Macro: TARGET_CPU_CPP_BUILTINS ()
       This function-like macro expands to a block of code that defines
       built-in preprocessor macros and assertions for the target CPU,
!      using the functions `builtin_define', `builtin_define_std' and
!      `builtin_assert'.  When the front end calls this macro it provides
!      a trailing semicolon, and since it has finished command line
!      option processing your code can use those results freely.
  
!      `builtin_assert' takes a string in the form you pass to the
!      command-line option `-A', such as `cpu=mips', and creates the
!      assertion.  `builtin_define' takes a string in the form accepted
!      by option `-D' and unconditionally defines the macro.
  
!      `builtin_define_std' takes a string representing the name of an
       object-like macro.  If it doesn't lie in the user's namespace,
!      `builtin_define_std' defines it unconditionally.  Otherwise, it
       defines a version with two leading underscores, and another version
       with two leading and trailing underscores, and defines the original
       only if an ISO standard was not requested on the command line.  For
!      example, passing `unix' defines `__unix', `__unix__' and possibly
!      `unix'; passing `_mips' defines `__mips', `__mips__' and possibly
!      `_mips', and passing `_ABI64' defines only `_ABI64'.
  
       You can also test for the C dialect being compiled.  The variable
!      `c_language' is set to one of `clk_c', `clk_cplusplus' or
!      `clk_objective_c'.  Note that if we are preprocessing assembler,
!      this variable will be `clk_c' but the function-like macro
!      `preprocessing_asm_p()' will return true, so you might want to
       check for that first.  If you need to check for strict ANSI, the
!      variable `flag_iso' can be used.  The function-like macro
!      `preprocessing_trad_p()' can be used to check for traditional
       preprocessing.
  
   -- Macro: TARGET_OS_CPP_BUILTINS ()
!      Similarly to `TARGET_CPU_CPP_BUILTINS' but this macro is optional
       and is used for the target operating system instead.
  
   -- Macro: TARGET_OBJFMT_CPP_BUILTINS ()
!      Similarly to `TARGET_CPU_CPP_BUILTINS' but this macro is optional
!      and is used for the target object format.  `elfos.h' uses this
!      macro to define `__ELF__', so you probably do not need to define
!      it yourself.
  
   -- Variable: extern int target_flags
!      This variable is declared in `options.h', which is included before
       any target-specific headers.
  
   -- Common Target Hook: int TARGET_DEFAULT_TARGET_FLAGS
!      This variable specifies the initial value of `target_flags'.  Its
       default setting is 0.
  
   -- Common Target Hook: bool TARGET_HANDLE_OPTION (struct gcc_options
            *OPTS, struct gcc_options *OPTS_SET, const struct
            cl_decoded_option *DECODED, location_t LOC)
       This hook is called whenever the user specifies one of the
!      target-specific options described by the `.opt' definition files
       (*note Options::).  It has the opportunity to do some
       option-specific processing and should return true if the option is
       valid.  The default definition does nothing but return true.
  
       DECODED specifies the option and its arguments.  OPTS and OPTS_SET
!      are the `gcc_options' structures to be used for storing option
       state, and LOC is the location at which the option was passed
!      (`UNKNOWN_LOCATION' except for options passed via attributes).
  
   -- C Target Hook: bool TARGET_HANDLE_C_OPTION (size_t CODE, const char
            *ARG, int VALUE)
       This target hook is called whenever the user specifies one of the
!      target-specific C language family options described by the `.opt'
       definition files(*note Options::).  It has the opportunity to do
       some option-specific processing and should return true if the
       option is valid.  The arguments are like for
!      `TARGET_HANDLE_OPTION'.  The default definition does nothing but
       return false.
  
!      In general, you should use `TARGET_HANDLE_OPTION' to handle
       options.  However, if processing an option requires routines that
!      are only available in the C (and related language) front ends,
!      then you should use `TARGET_HANDLE_C_OPTION' instead.
  
   -- C Target Hook: tree TARGET_OBJC_CONSTRUCT_STRING_OBJECT (tree
            STRING)
       Targets may provide a string object type that can be used within
!      and between C, C++ and their respective Objective-C dialects. A
       string object might, for example, embed encoding and length
!      information. These objects are considered opaque to the compiler
!      and handled as references. An ideal implementation makes the
       composition of the string object match that of the Objective-C
!      `NSString' (`NXString' for GNUStep), allowing efficient
!      interworking between C-only and Objective-C code. If a target
       implements string objects then this hook should return a reference
!      to such an object constructed from the normal `C' string
!      representation provided in STRING. At present, the hook is used by
       Objective-C only, to obtain a common-format string object when the
       target provides one.
  
   -- C Target Hook: void TARGET_OBJC_DECLARE_UNRESOLVED_CLASS_REFERENCE
            (const char *CLASSNAME)
!      Declare that Objective C class CLASSNAME is referenced  by the
       current TU.
  
!  -- C Target Hook: void TARGET_OBJC_DECLARE_CLASS_DEFINITION (const
!           char *CLASSNAME)
!      Declare that Objective C class CLASSNAME is defined  by the
!      current TU.
  
   -- C Target Hook: bool TARGET_STRING_OBJECT_REF_TYPE_P (const_tree
            STRINGREF)
       If a target implements string objects then this hook should return
!      `true' if STRINGREF is a valid reference to such an object.
  
   -- C Target Hook: void TARGET_CHECK_STRING_OBJECT_FORMAT_ARG (tree
            FORMAT_ARG, tree ARGS_LIST)
--- 28218,28330 ----
   -- Macro: TARGET_CPU_CPP_BUILTINS ()
       This function-like macro expands to a block of code that defines
       built-in preprocessor macros and assertions for the target CPU,
!      using the functions 'builtin_define', 'builtin_define_std' and
!      'builtin_assert'.  When the front end calls this macro it provides
!      a trailing semicolon, and since it has finished command line option
!      processing your code can use those results freely.
  
!      'builtin_assert' takes a string in the form you pass to the
!      command-line option '-A', such as 'cpu=mips', and creates the
!      assertion.  'builtin_define' takes a string in the form accepted by
!      option '-D' and unconditionally defines the macro.
  
!      'builtin_define_std' takes a string representing the name of an
       object-like macro.  If it doesn't lie in the user's namespace,
!      'builtin_define_std' defines it unconditionally.  Otherwise, it
       defines a version with two leading underscores, and another version
       with two leading and trailing underscores, and defines the original
       only if an ISO standard was not requested on the command line.  For
!      example, passing 'unix' defines '__unix', '__unix__' and possibly
!      'unix'; passing '_mips' defines '__mips', '__mips__' and possibly
!      '_mips', and passing '_ABI64' defines only '_ABI64'.
  
       You can also test for the C dialect being compiled.  The variable
!      'c_language' is set to one of 'clk_c', 'clk_cplusplus' or
!      'clk_objective_c'.  Note that if we are preprocessing assembler,
!      this variable will be 'clk_c' but the function-like macro
!      'preprocessing_asm_p()' will return true, so you might want to
       check for that first.  If you need to check for strict ANSI, the
!      variable 'flag_iso' can be used.  The function-like macro
!      'preprocessing_trad_p()' can be used to check for traditional
       preprocessing.
  
   -- Macro: TARGET_OS_CPP_BUILTINS ()
!      Similarly to 'TARGET_CPU_CPP_BUILTINS' but this macro is optional
       and is used for the target operating system instead.
  
   -- Macro: TARGET_OBJFMT_CPP_BUILTINS ()
!      Similarly to 'TARGET_CPU_CPP_BUILTINS' but this macro is optional
!      and is used for the target object format.  'elfos.h' uses this
!      macro to define '__ELF__', so you probably do not need to define it
!      yourself.
  
   -- Variable: extern int target_flags
!      This variable is declared in 'options.h', which is included before
       any target-specific headers.
  
   -- Common Target Hook: int TARGET_DEFAULT_TARGET_FLAGS
!      This variable specifies the initial value of 'target_flags'.  Its
       default setting is 0.
  
   -- Common Target Hook: bool TARGET_HANDLE_OPTION (struct gcc_options
            *OPTS, struct gcc_options *OPTS_SET, const struct
            cl_decoded_option *DECODED, location_t LOC)
       This hook is called whenever the user specifies one of the
!      target-specific options described by the '.opt' definition files
       (*note Options::).  It has the opportunity to do some
       option-specific processing and should return true if the option is
       valid.  The default definition does nothing but return true.
  
       DECODED specifies the option and its arguments.  OPTS and OPTS_SET
!      are the 'gcc_options' structures to be used for storing option
       state, and LOC is the location at which the option was passed
!      ('UNKNOWN_LOCATION' except for options passed via attributes).
  
   -- C Target Hook: bool TARGET_HANDLE_C_OPTION (size_t CODE, const char
            *ARG, int VALUE)
       This target hook is called whenever the user specifies one of the
!      target-specific C language family options described by the '.opt'
       definition files(*note Options::).  It has the opportunity to do
       some option-specific processing and should return true if the
       option is valid.  The arguments are like for
!      'TARGET_HANDLE_OPTION'.  The default definition does nothing but
       return false.
  
!      In general, you should use 'TARGET_HANDLE_OPTION' to handle
       options.  However, if processing an option requires routines that
!      are only available in the C (and related language) front ends, then
!      you should use 'TARGET_HANDLE_C_OPTION' instead.
  
   -- C Target Hook: tree TARGET_OBJC_CONSTRUCT_STRING_OBJECT (tree
            STRING)
       Targets may provide a string object type that can be used within
!      and between C, C++ and their respective Objective-C dialects.  A
       string object might, for example, embed encoding and length
!      information.  These objects are considered opaque to the compiler
!      and handled as references.  An ideal implementation makes the
       composition of the string object match that of the Objective-C
!      'NSString' ('NXString' for GNUStep), allowing efficient
!      interworking between C-only and Objective-C code.  If a target
       implements string objects then this hook should return a reference
!      to such an object constructed from the normal 'C' string
!      representation provided in STRING.  At present, the hook is used by
       Objective-C only, to obtain a common-format string object when the
       target provides one.
  
   -- C Target Hook: void TARGET_OBJC_DECLARE_UNRESOLVED_CLASS_REFERENCE
            (const char *CLASSNAME)
!      Declare that Objective C class CLASSNAME is referenced by the
       current TU.
  
!  -- C Target Hook: void TARGET_OBJC_DECLARE_CLASS_DEFINITION (const char
!           *CLASSNAME)
!      Declare that Objective C class CLASSNAME is defined by the current
!      TU.
  
   -- C Target Hook: bool TARGET_STRING_OBJECT_REF_TYPE_P (const_tree
            STRINGREF)
       If a target implements string objects then this hook should return
!      'true' if STRINGREF is a valid reference to such an object.
  
   -- C Target Hook: void TARGET_CHECK_STRING_OBJECT_FORMAT_ARG (tree
            FORMAT_ARG, tree ARGS_LIST)
*************** Here are run-time target specifications.
*** 28720,28767 ****
  
   -- Target Hook: void TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE (void)
       This target function is similar to the hook
!      `TARGET_OPTION_OVERRIDE' but is called when the optimize level is
       changed via an attribute or pragma or when it is reset at the end
       of the code affected by the attribute or pragma.  It is not called
!      at the beginning of compilation when `TARGET_OPTION_OVERRIDE' is
       called so if you want to perform these actions then, you should
!      have `TARGET_OPTION_OVERRIDE' call
!      `TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE'.
  
   -- Macro: C_COMMON_OVERRIDE_OPTIONS
!      This is similar to the `TARGET_OPTION_OVERRIDE' hook but is only
       used in the C language frontends (C, Objective-C, C++,
       Objective-C++) and so can be used to alter option flag variables
       which only exist in those frontends.
  
   -- Common Target Hook: const struct default_options *
! TARGET_OPTION_OPTIMIZATION_TABLE
!      Some machines may desire to change what optimizations are
!      performed for various optimization levels.   This variable, if
!      defined, describes options to enable at particular sets of
!      optimization levels.  These options are processed once just after
!      the optimization level is determined and before the remainder of
!      the command options have been parsed, so may be overridden by other
       options passed explicitly.
  
       This processing is run once at program startup and when the
!      optimization options are changed via `#pragma GCC optimize' or by
!      using the `optimize' attribute.
  
   -- Common Target Hook: void TARGET_OPTION_INIT_STRUCT (struct
            gcc_options *OPTS)
       Set target-dependent initial values of fields in OPTS.
  
   -- Common Target Hook: void TARGET_OPTION_DEFAULT_PARAMS (void)
!      Set target-dependent default values for `--param' settings, using
!      calls to `set_default_param_value'.
  
   -- Macro: SWITCHABLE_TARGET
       Some targets need to switch between substantially different
       subtargets during compilation.  For example, the MIPS target has
!      one subtarget for the traditional MIPS architecture and another
!      for MIPS16.  Source code can switch between these two
!      subarchitectures using the `mips16' and `nomips16' attributes.
  
       Such subtargets can differ in things like the set of available
       registers, the set of available instructions, the costs of various
--- 28335,28382 ----
  
   -- Target Hook: void TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE (void)
       This target function is similar to the hook
!      'TARGET_OPTION_OVERRIDE' but is called when the optimize level is
       changed via an attribute or pragma or when it is reset at the end
       of the code affected by the attribute or pragma.  It is not called
!      at the beginning of compilation when 'TARGET_OPTION_OVERRIDE' is
       called so if you want to perform these actions then, you should
!      have 'TARGET_OPTION_OVERRIDE' call
!      'TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE'.
  
   -- Macro: C_COMMON_OVERRIDE_OPTIONS
!      This is similar to the 'TARGET_OPTION_OVERRIDE' hook but is only
       used in the C language frontends (C, Objective-C, C++,
       Objective-C++) and so can be used to alter option flag variables
       which only exist in those frontends.
  
   -- Common Target Hook: const struct default_options *
!           TARGET_OPTION_OPTIMIZATION_TABLE
!      Some machines may desire to change what optimizations are performed
!      for various optimization levels.  This variable, if defined,
!      describes options to enable at particular sets of optimization
!      levels.  These options are processed once just after the
!      optimization level is determined and before the remainder of the
!      command options have been parsed, so may be overridden by other
       options passed explicitly.
  
       This processing is run once at program startup and when the
!      optimization options are changed via '#pragma GCC optimize' or by
!      using the 'optimize' attribute.
  
   -- Common Target Hook: void TARGET_OPTION_INIT_STRUCT (struct
            gcc_options *OPTS)
       Set target-dependent initial values of fields in OPTS.
  
   -- Common Target Hook: void TARGET_OPTION_DEFAULT_PARAMS (void)
!      Set target-dependent default values for '--param' settings, using
!      calls to 'set_default_param_value'.
  
   -- Macro: SWITCHABLE_TARGET
       Some targets need to switch between substantially different
       subtargets during compilation.  For example, the MIPS target has
!      one subtarget for the traditional MIPS architecture and another for
!      MIPS16.  Source code can switch between these two subarchitectures
!      using the 'mips16' and 'nomips16' attributes.
  
       Such subtargets can differ in things like the set of available
       registers, the set of available instructions, the costs of various
*************** TARGET_OPTION_OPTIMIZATION_TABLE
*** 28770,28776 ****
       subtarget takes a significant amount of time.  The compiler
       therefore provides a facility for maintaining several versions of
       the global variables and quickly switching between them; see
!      `target-globals.h' for details.
  
       Define this macro to 1 if your target needs this facility.  The
       default is 0.
--- 28385,28391 ----
       subtarget takes a significant amount of time.  The compiler
       therefore provides a facility for maintaining several versions of
       the global variables and quickly switching between them; see
!      'target-globals.h' for details.
  
       Define this macro to 1 if your target needs this facility.  The
       default is 0.
*************** TARGET_OPTION_OPTIMIZATION_TABLE
*** 28779,28786 ****
            (void)
       Returns true if the target supports IEEE 754 floating-point
       exceptions and rounding modes, false otherwise.  This is intended
!      to relate to the `float' and `double' types, but not necessarily
!      `long double'. By default, returns true if the `adddf3'
       instruction pattern is available and false otherwise, on the
       assumption that hardware floating point supports exceptions and
       rounding modes but software floating point does not.
--- 28394,28401 ----
            (void)
       Returns true if the target supports IEEE 754 floating-point
       exceptions and rounding modes, false otherwise.  This is intended
!      to relate to the 'float' and 'double' types, but not necessarily
!      'long double'.  By default, returns true if the 'adddf3'
       instruction pattern is available and false otherwise, on the
       assumption that hardware floating point supports exceptions and
       rounding modes but software floating point does not.
*************** using statics to store the information i
*** 28797,28844 ****
  nested functions, so you can be halfway through encoding one function
  when another one comes along.
  
!  GCC defines a data structure called `struct function' which contains
  all of the data specific to an individual function.  This structure
! contains a field called `machine' whose type is `struct
! machine_function *', which can be used by targets to point to their own
! specific data.
  
   If a target needs per-function specific data it should define the type
! `struct machine_function' and also the macro `INIT_EXPANDERS'.  This
  macro should be used to initialize the function pointer
! `init_machine_status'.  This pointer is explained below.
  
   One typical use of per-function, target specific data is to create an
  RTX to hold the register containing the function's return address.  This
! RTX can then be used to implement the `__builtin_return_address'
  function, for level 0.
  
   Note--earlier implementations of GCC used a single data area to hold
  all of the per-function information.  Thus when processing of a nested
  function began the old per-function data had to be pushed onto a stack,
! and when the processing was finished, it had to be popped off the
! stack.  GCC used to provide function pointers called
! `save_machine_status' and `restore_machine_status' to handle the saving
! and restoring of the target specific information.  Since the single
! data area approach is no longer used, these pointers are no longer
! supported.
  
   -- Macro: INIT_EXPANDERS
       Macro called to initialize any target specific information.  This
!      macro is called once per function, before generation of any RTL
!      has begun.  The intention of this macro is to allow the
!      initialization of the function pointer `init_machine_status'.
  
   -- Variable: void (*)(struct function *) init_machine_status
!      If this function pointer is non-`NULL' it will be called once per
       function, before function compilation starts, in order to allow the
!      target to perform any target specific initialization of the
!      `struct function' structure.  It is intended that this would be
!      used to initialize the `machine' of that structure.
  
!      `struct machine_function' structures are expected to be freed by
!      GC.  Generally, any memory that they reference must be allocated
!      by using GC allocation, including the structure itself.
  
  
  File: gccint.info,  Node: Storage Layout,  Next: Type Layout,  Prev: Per-Function Data,  Up: Target Macros
--- 28412,28457 ----
  nested functions, so you can be halfway through encoding one function
  when another one comes along.
  
!  GCC defines a data structure called 'struct function' which contains
  all of the data specific to an individual function.  This structure
! contains a field called 'machine' whose type is 'struct machine_function
! *', which can be used by targets to point to their own specific data.
  
   If a target needs per-function specific data it should define the type
! 'struct machine_function' and also the macro 'INIT_EXPANDERS'.  This
  macro should be used to initialize the function pointer
! 'init_machine_status'.  This pointer is explained below.
  
   One typical use of per-function, target specific data is to create an
  RTX to hold the register containing the function's return address.  This
! RTX can then be used to implement the '__builtin_return_address'
  function, for level 0.
  
   Note--earlier implementations of GCC used a single data area to hold
  all of the per-function information.  Thus when processing of a nested
  function began the old per-function data had to be pushed onto a stack,
! and when the processing was finished, it had to be popped off the stack.
! GCC used to provide function pointers called 'save_machine_status' and
! 'restore_machine_status' to handle the saving and restoring of the
! target specific information.  Since the single data area approach is no
! longer used, these pointers are no longer supported.
  
   -- Macro: INIT_EXPANDERS
       Macro called to initialize any target specific information.  This
!      macro is called once per function, before generation of any RTL has
!      begun.  The intention of this macro is to allow the initialization
!      of the function pointer 'init_machine_status'.
  
   -- Variable: void (*)(struct function *) init_machine_status
!      If this function pointer is non-'NULL' it will be called once per
       function, before function compilation starts, in order to allow the
!      target to perform any target specific initialization of the 'struct
!      function' structure.  It is intended that this would be used to
!      initialize the 'machine' of that structure.
  
!      'struct machine_function' structures are expected to be freed by
!      GC.  Generally, any memory that they reference must be allocated by
!      using GC allocation, including the structure itself.
  
  
  File: gccint.info,  Node: Storage Layout,  Next: Type Layout,  Prev: Per-Function Data,  Up: Target Macros
*************** File: gccint.info,  Node: Storage Layout
*** 28848,28854 ****
  
  Note that the definitions of the macros in this table which are sizes or
  alignments measured in bits do not need to be constant.  They can be C
! expressions that refer to static variables, such as the `target_flags'.
  *Note Run-time Target::.
  
   -- Macro: BITS_BIG_ENDIAN
--- 28461,28467 ----
  
  Note that the definitions of the macros in this table which are sizes or
  alignments measured in bits do not need to be constant.  They can be C
! expressions that refer to static variables, such as the 'target_flags'.
  *Note Run-time Target::.
  
   -- Macro: BITS_BIG_ENDIAN
*************** expressions that refer to static variabl
*** 28861,28867 ****
       constant.
  
       This macro does not affect the way structure fields are packed into
!      bytes or words; that is controlled by `BYTES_BIG_ENDIAN'.
  
   -- Macro: BYTES_BIG_ENDIAN
       Define this macro to have the value 1 if the most significant byte
--- 28474,28480 ----
       constant.
  
       This macro does not affect the way structure fields are packed into
!      bytes or words; that is controlled by 'BYTES_BIG_ENDIAN'.
  
   -- Macro: BYTES_BIG_ENDIAN
       Define this macro to have the value 1 if the most significant byte
*************** expressions that refer to static variabl
*** 28871,28877 ****
   -- Macro: WORDS_BIG_ENDIAN
       Define this macro to have the value 1 if, in a multiword object,
       the most significant word has the lowest number.  This applies to
!      both memory locations and registers; see `REG_WORDS_BIG_ENDIAN' if
       the order of words in memory is not the same as the order in
       registers.  This macro need not be a constant.
  
--- 28484,28490 ----
   -- Macro: WORDS_BIG_ENDIAN
       Define this macro to have the value 1 if, in a multiword object,
       the most significant word has the lowest number.  This applies to
!      both memory locations and registers; see 'REG_WORDS_BIG_ENDIAN' if
       the order of words in memory is not the same as the order in
       registers.  This macro need not be a constant.
  
*************** expressions that refer to static variabl
*** 28879,28889 ****
       On some machines, the order of words in a multiword object differs
       between registers in memory.  In such a situation, define this
       macro to describe the order of words in a register.  The macro
!      `WORDS_BIG_ENDIAN' controls the order of words in memory.
  
   -- Macro: FLOAT_WORDS_BIG_ENDIAN
!      Define this macro to have the value 1 if `DFmode', `XFmode' or
!      `TFmode' floating point numbers are stored in memory with the word
       containing the sign bit at the lowest address; otherwise define it
       to have the value 0.  This macro need not be a constant.
  
--- 28492,28502 ----
       On some machines, the order of words in a multiword object differs
       between registers in memory.  In such a situation, define this
       macro to describe the order of words in a register.  The macro
!      'WORDS_BIG_ENDIAN' controls the order of words in memory.
  
   -- Macro: FLOAT_WORDS_BIG_ENDIAN
!      Define this macro to have the value 1 if 'DFmode', 'XFmode' or
!      'TFmode' floating point numbers are stored in memory with the word
       containing the sign bit at the lowest address; otherwise define it
       to have the value 0.  This macro need not be a constant.
  
*************** expressions that refer to static variabl
*** 28892,28903 ****
  
   -- Macro: BITS_PER_WORD
       Number of bits in a word.  If you do not define this macro, the
!      default is `BITS_PER_UNIT * UNITS_PER_WORD'.
  
   -- Macro: MAX_BITS_PER_WORD
       Maximum number of bits in a word.  If this is undefined, the
!      default is `BITS_PER_WORD'.  Otherwise, it is the constant value
!      that is the largest value that `BITS_PER_WORD' can have at
       run-time.
  
   -- Macro: UNITS_PER_WORD
--- 28505,28516 ----
  
   -- Macro: BITS_PER_WORD
       Number of bits in a word.  If you do not define this macro, the
!      default is 'BITS_PER_UNIT * UNITS_PER_WORD'.
  
   -- Macro: MAX_BITS_PER_WORD
       Maximum number of bits in a word.  If this is undefined, the
!      default is 'BITS_PER_WORD'.  Otherwise, it is the constant value
!      that is the largest value that 'BITS_PER_WORD' can have at
       run-time.
  
   -- Macro: UNITS_PER_WORD
*************** expressions that refer to static variabl
*** 28906,28942 ****
  
   -- Macro: MIN_UNITS_PER_WORD
       Minimum number of units in a word.  If this is undefined, the
!      default is `UNITS_PER_WORD'.  Otherwise, it is the constant value
!      that is the smallest value that `UNITS_PER_WORD' can have at
       run-time.
  
   -- Macro: POINTER_SIZE
       Width of a pointer, in bits.  You must specify a value no wider
!      than the width of `Pmode'.  If it is not equal to the width of
!      `Pmode', you must define `POINTERS_EXTEND_UNSIGNED'.  If you do
!      not specify a value the default is `BITS_PER_WORD'.
  
   -- Macro: POINTERS_EXTEND_UNSIGNED
       A C expression that determines how pointers should be extended from
!      `ptr_mode' to either `Pmode' or `word_mode'.  It is greater than
       zero if pointers should be zero-extended, zero if they should be
       sign-extended, and negative if some other sort of conversion is
       needed.  In the last case, the extension is done by the target's
!      `ptr_extend' instruction.
  
!      You need not define this macro if the `ptr_mode', `Pmode' and
!      `word_mode' are all the same width.
  
   -- Macro: PROMOTE_MODE (M, UNSIGNEDP, TYPE)
!      A macro to update M and UNSIGNEDP when an object whose type is
!      TYPE and which has the specified mode and signedness is to be
!      stored in a register.  This macro is only called when TYPE is a
!      scalar type.
  
!      On most RISC machines, which only have operations that operate on
!      a full register, define this macro to set M to `word_mode' if M is
!      an integer mode narrower than `BITS_PER_WORD'.  In most cases,
!      only integer modes should be widened because wider-precision
       floating-point operations are usually more expensive than their
       narrower counterparts.
  
--- 28519,28554 ----
  
   -- Macro: MIN_UNITS_PER_WORD
       Minimum number of units in a word.  If this is undefined, the
!      default is 'UNITS_PER_WORD'.  Otherwise, it is the constant value
!      that is the smallest value that 'UNITS_PER_WORD' can have at
       run-time.
  
   -- Macro: POINTER_SIZE
       Width of a pointer, in bits.  You must specify a value no wider
!      than the width of 'Pmode'.  If it is not equal to the width of
!      'Pmode', you must define 'POINTERS_EXTEND_UNSIGNED'.  If you do not
!      specify a value the default is 'BITS_PER_WORD'.
  
   -- Macro: POINTERS_EXTEND_UNSIGNED
       A C expression that determines how pointers should be extended from
!      'ptr_mode' to either 'Pmode' or 'word_mode'.  It is greater than
       zero if pointers should be zero-extended, zero if they should be
       sign-extended, and negative if some other sort of conversion is
       needed.  In the last case, the extension is done by the target's
!      'ptr_extend' instruction.
  
!      You need not define this macro if the 'ptr_mode', 'Pmode' and
!      'word_mode' are all the same width.
  
   -- Macro: PROMOTE_MODE (M, UNSIGNEDP, TYPE)
!      A macro to update M and UNSIGNEDP when an object whose type is TYPE
!      and which has the specified mode and signedness is to be stored in
!      a register.  This macro is only called when TYPE is a scalar type.
  
!      On most RISC machines, which only have operations that operate on a
!      full register, define this macro to set M to 'word_mode' if M is an
!      integer mode narrower than 'BITS_PER_WORD'.  In most cases, only
!      integer modes should be widened because wider-precision
       floating-point operations are usually more expensive than their
       narrower counterparts.
  
*************** expressions that refer to static variabl
*** 28953,28978 ****
   -- Target Hook: machine_mode TARGET_PROMOTE_FUNCTION_MODE (const_tree
            TYPE, machine_mode MODE, int *PUNSIGNEDP, const_tree FUNTYPE,
            int FOR_RETURN)
!      Like `PROMOTE_MODE', but it is applied to outgoing function
!      arguments or function return values.  The target hook should
!      return the new mode and possibly change `*PUNSIGNEDP' if the
!      promotion should change signedness.  This function is called only
!      for scalar _or pointer_ types.
  
       FOR_RETURN allows to distinguish the promotion of arguments and
!      return values.  If it is `1', a return value is being promoted and
!      `TARGET_FUNCTION_VALUE' must perform the same promotions done here.
!      If it is `2', the returned mode should be that of the register in
       which an incoming parameter is copied, or the outgoing result is
       computed; then the hook should return the same mode as
!      `promote_mode', though the signedness may be different.
  
       TYPE can be NULL when promoting function arguments of libcalls.
  
       The default is to not promote arguments and return values.  You can
       also define the hook to
!      `default_promote_function_mode_always_promote' if you would like
!      to apply the same rules given by `PROMOTE_MODE'.
  
   -- Macro: PARM_BOUNDARY
       Normal alignment required for function parameters on the stack, in
--- 28565,28590 ----
   -- Target Hook: machine_mode TARGET_PROMOTE_FUNCTION_MODE (const_tree
            TYPE, machine_mode MODE, int *PUNSIGNEDP, const_tree FUNTYPE,
            int FOR_RETURN)
!      Like 'PROMOTE_MODE', but it is applied to outgoing function
!      arguments or function return values.  The target hook should return
!      the new mode and possibly change '*PUNSIGNEDP' if the promotion
!      should change signedness.  This function is called only for scalar
!      _or pointer_ types.
  
       FOR_RETURN allows to distinguish the promotion of arguments and
!      return values.  If it is '1', a return value is being promoted and
!      'TARGET_FUNCTION_VALUE' must perform the same promotions done here.
!      If it is '2', the returned mode should be that of the register in
       which an incoming parameter is copied, or the outgoing result is
       computed; then the hook should return the same mode as
!      'promote_mode', though the signedness may be different.
  
       TYPE can be NULL when promoting function arguments of libcalls.
  
       The default is to not promote arguments and return values.  You can
       also define the hook to
!      'default_promote_function_mode_always_promote' if you would like to
!      apply the same rules given by 'PROMOTE_MODE'.
  
   -- Macro: PARM_BOUNDARY
       Normal alignment required for function parameters on the stack, in
*************** expressions that refer to static variabl
*** 28981,29004 ****
       size of an integer.
  
   -- Macro: STACK_BOUNDARY
!      Define this macro to the minimum alignment enforced by hardware
!      for the stack pointer on this machine.  The definition is a C
       expression for the desired alignment (measured in bits).  This
!      value is used as a default if `PREFERRED_STACK_BOUNDARY' is not
       defined.  On most machines, this should be the same as
!      `PARM_BOUNDARY'.
  
   -- Macro: PREFERRED_STACK_BOUNDARY
       Define this macro if you wish to preserve a certain alignment for
       the stack pointer, greater than what the hardware enforces.  The
!      definition is a C expression for the desired alignment (measured
!      in bits).  This macro must evaluate to a value equal to or larger
!      than `STACK_BOUNDARY'.
  
   -- Macro: INCOMING_STACK_BOUNDARY
       Define this macro if the incoming stack boundary may be different
!      from `PREFERRED_STACK_BOUNDARY'.  This macro must evaluate to a
!      value equal to or larger than `STACK_BOUNDARY'.
  
   -- Macro: FUNCTION_BOUNDARY
       Alignment required for a function entry point, in bits.
--- 28593,28616 ----
       size of an integer.
  
   -- Macro: STACK_BOUNDARY
!      Define this macro to the minimum alignment enforced by hardware for
!      the stack pointer on this machine.  The definition is a C
       expression for the desired alignment (measured in bits).  This
!      value is used as a default if 'PREFERRED_STACK_BOUNDARY' is not
       defined.  On most machines, this should be the same as
!      'PARM_BOUNDARY'.
  
   -- Macro: PREFERRED_STACK_BOUNDARY
       Define this macro if you wish to preserve a certain alignment for
       the stack pointer, greater than what the hardware enforces.  The
!      definition is a C expression for the desired alignment (measured in
!      bits).  This macro must evaluate to a value equal to or larger than
!      'STACK_BOUNDARY'.
  
   -- Macro: INCOMING_STACK_BOUNDARY
       Define this macro if the incoming stack boundary may be different
!      from 'PREFERRED_STACK_BOUNDARY'.  This macro must evaluate to a
!      value equal to or larger than 'STACK_BOUNDARY'.
  
   -- Macro: FUNCTION_BOUNDARY
       Alignment required for a function entry point, in bits.
*************** expressions that refer to static variabl
*** 29012,29083 ****
   -- Target Hook: HOST_WIDE_INT TARGET_ABSOLUTE_BIGGEST_ALIGNMENT
       If defined, this target hook specifies the absolute biggest
       alignment that a type or variable can have on this machine,
!      otherwise, `BIGGEST_ALIGNMENT' is used.
  
   -- Macro: MALLOC_ABI_ALIGNMENT
       Alignment, in bits, a C conformant malloc implementation has to
!      provide.  If not defined, the default value is `BITS_PER_WORD'.
  
   -- Macro: ATTRIBUTE_ALIGNED_VALUE
!      Alignment used by the `__attribute__ ((aligned))' construct.  If
!      not defined, the default value is `BIGGEST_ALIGNMENT'.
  
   -- Macro: MINIMUM_ATOMIC_ALIGNMENT
       If defined, the smallest alignment, in bits, that can be given to
       an object that can be referenced in one operation, without
!      disturbing any nearby object.  Normally, this is `BITS_PER_UNIT',
       but may be larger on machines that don't have byte or half-word
       store operations.
  
   -- Macro: BIGGEST_FIELD_ALIGNMENT
       Biggest alignment that any structure or union field can require on
       this machine, in bits.  If defined, this overrides
!      `BIGGEST_ALIGNMENT' for structure and union fields only, unless
!      the field alignment has been set by the `__attribute__ ((aligned
!      (N)))' construct.
  
   -- Macro: ADJUST_FIELD_ALIGN (FIELD, COMPUTED)
       An expression for the alignment of a structure field FIELD if the
       alignment computed in the usual way (including applying of
!      `BIGGEST_ALIGNMENT' and `BIGGEST_FIELD_ALIGNMENT' to the
!      alignment) is COMPUTED.  It overrides alignment only if the field
!      alignment has not been set by the `__attribute__ ((aligned (N)))'
!      construct.
  
   -- Macro: MAX_STACK_ALIGNMENT
       Biggest stack alignment guaranteed by the backend.  Use this macro
       to specify the maximum alignment of a variable on stack.
  
!      If not defined, the default value is `STACK_BOUNDARY'.
! 
  
   -- Macro: MAX_OFILE_ALIGNMENT
       Biggest alignment supported by the object file format of this
       machine.  Use this macro to limit the alignment which can be
!      specified using the `__attribute__ ((aligned (N)))' construct.  If
!      not defined, the default value is `BIGGEST_ALIGNMENT'.
  
!      On systems that use ELF, the default (in `config/elfos.h') is the
       largest supported 32-bit ELF section alignment representable on a
!      32-bit host e.g. `(((uint64_t) 1 << 28) * 8)'.  On 32-bit ELF the
!      largest supported section alignment in bits is `(0x80000000 * 8)',
       but this is not representable on 32-bit hosts.
  
   -- Macro: DATA_ALIGNMENT (TYPE, BASIC-ALIGN)
       If defined, a C expression to compute the alignment for a variable
!      in the static store.  TYPE is the data type, and BASIC-ALIGN is
!      the alignment that the object would ordinarily have.  The value of
!      this macro is used instead of that alignment to align the object.
  
       If this macro is not defined, then BASIC-ALIGN is used.
  
       One use of this macro is to increase alignment of medium-size data
       to make it all fit in fewer cache lines.  Another is to cause
!      character arrays to be word-aligned so that `strcpy' calls that
       copy constants to character arrays can be done inline.
  
   -- Macro: DATA_ABI_ALIGNMENT (TYPE, BASIC-ALIGN)
!      Similar to `DATA_ALIGNMENT', but for the cases where the ABI
       mandates some alignment increase, instead of optimization only
       purposes.  E.g. AMD x86-64 psABI says that variables with array
       type larger than 15 bytes must be aligned to 16 byte boundaries.
--- 28624,28693 ----
   -- Target Hook: HOST_WIDE_INT TARGET_ABSOLUTE_BIGGEST_ALIGNMENT
       If defined, this target hook specifies the absolute biggest
       alignment that a type or variable can have on this machine,
!      otherwise, 'BIGGEST_ALIGNMENT' is used.
  
   -- Macro: MALLOC_ABI_ALIGNMENT
       Alignment, in bits, a C conformant malloc implementation has to
!      provide.  If not defined, the default value is 'BITS_PER_WORD'.
  
   -- Macro: ATTRIBUTE_ALIGNED_VALUE
!      Alignment used by the '__attribute__ ((aligned))' construct.  If
!      not defined, the default value is 'BIGGEST_ALIGNMENT'.
  
   -- Macro: MINIMUM_ATOMIC_ALIGNMENT
       If defined, the smallest alignment, in bits, that can be given to
       an object that can be referenced in one operation, without
!      disturbing any nearby object.  Normally, this is 'BITS_PER_UNIT',
       but may be larger on machines that don't have byte or half-word
       store operations.
  
   -- Macro: BIGGEST_FIELD_ALIGNMENT
       Biggest alignment that any structure or union field can require on
       this machine, in bits.  If defined, this overrides
!      'BIGGEST_ALIGNMENT' for structure and union fields only, unless the
!      field alignment has been set by the '__attribute__ ((aligned (N)))'
!      construct.
  
   -- Macro: ADJUST_FIELD_ALIGN (FIELD, COMPUTED)
       An expression for the alignment of a structure field FIELD if the
       alignment computed in the usual way (including applying of
!      'BIGGEST_ALIGNMENT' and 'BIGGEST_FIELD_ALIGNMENT' to the alignment)
!      is COMPUTED.  It overrides alignment only if the field alignment
!      has not been set by the '__attribute__ ((aligned (N)))' construct.
  
   -- Macro: MAX_STACK_ALIGNMENT
       Biggest stack alignment guaranteed by the backend.  Use this macro
       to specify the maximum alignment of a variable on stack.
  
!      If not defined, the default value is 'STACK_BOUNDARY'.
  
   -- Macro: MAX_OFILE_ALIGNMENT
       Biggest alignment supported by the object file format of this
       machine.  Use this macro to limit the alignment which can be
!      specified using the '__attribute__ ((aligned (N)))' construct.  If
!      not defined, the default value is 'BIGGEST_ALIGNMENT'.
  
!      On systems that use ELF, the default (in 'config/elfos.h') is the
       largest supported 32-bit ELF section alignment representable on a
!      32-bit host e.g.  '(((uint64_t) 1 << 28) * 8)'.  On 32-bit ELF the
!      largest supported section alignment in bits is '(0x80000000 * 8)',
       but this is not representable on 32-bit hosts.
  
   -- Macro: DATA_ALIGNMENT (TYPE, BASIC-ALIGN)
       If defined, a C expression to compute the alignment for a variable
!      in the static store.  TYPE is the data type, and BASIC-ALIGN is the
!      alignment that the object would ordinarily have.  The value of this
!      macro is used instead of that alignment to align the object.
  
       If this macro is not defined, then BASIC-ALIGN is used.
  
       One use of this macro is to increase alignment of medium-size data
       to make it all fit in fewer cache lines.  Another is to cause
!      character arrays to be word-aligned so that 'strcpy' calls that
       copy constants to character arrays can be done inline.
  
   -- Macro: DATA_ABI_ALIGNMENT (TYPE, BASIC-ALIGN)
!      Similar to 'DATA_ALIGNMENT', but for the cases where the ABI
       mandates some alignment increase, instead of optimization only
       purposes.  E.g. AMD x86-64 psABI says that variables with array
       type larger than 15 bytes must be aligned to 16 byte boundaries.
*************** expressions that refer to static variabl
*** 29094,29100 ****
       The default definition just returns BASIC-ALIGN.
  
       The typical use of this macro is to increase alignment for string
!      constants to be word aligned so that `strcpy' calls that copy
       constants can be done inline.
  
   -- Macro: LOCAL_ALIGNMENT (TYPE, BASIC-ALIGN)
--- 28704,28710 ----
       The default definition just returns BASIC-ALIGN.
  
       The typical use of this macro is to increase alignment for string
!      constants to be word aligned so that 'strcpy' calls that copy
       constants can be done inline.
  
   -- Macro: LOCAL_ALIGNMENT (TYPE, BASIC-ALIGN)
*************** expressions that refer to static variabl
*** 29113,29122 ****
  
   -- Target Hook: HOST_WIDE_INT TARGET_VECTOR_ALIGNMENT (const_tree TYPE)
       This hook can be used to define the alignment for a vector of type
!      TYPE, in order to comply with a platform ABI.  The default is to
!      require natural alignment for vector types.  The alignment
!      returned by this hook must be a power-of-two multiple of the
!      default alignment of the vector element type.
  
   -- Macro: STACK_SLOT_ALIGNMENT (TYPE, MODE, BASIC-ALIGN)
       If defined, a C expression to compute the alignment for stack slot.
--- 28723,28732 ----
  
   -- Target Hook: HOST_WIDE_INT TARGET_VECTOR_ALIGNMENT (const_tree TYPE)
       This hook can be used to define the alignment for a vector of type
!      TYPE, in order to comply with a platform ABI. The default is to
!      require natural alignment for vector types.  The alignment returned
!      by this hook must be a power-of-two multiple of the default
!      alignment of the vector element type.
  
   -- Macro: STACK_SLOT_ALIGNMENT (TYPE, MODE, BASIC-ALIGN)
       If defined, a C expression to compute the alignment for stack slot.
*************** expressions that refer to static variabl
*** 29125,29132 ****
       The value of this macro is used instead of that alignment to align
       the slot.
  
!      If this macro is not defined, then BASIC-ALIGN is used when TYPE
!      is `NULL'.  Otherwise, `LOCAL_ALIGNMENT' will be used.
  
       This macro is to set alignment of stack slot to the maximum
       alignment of all possible modes which the slot may have.
--- 28735,28742 ----
       The value of this macro is used instead of that alignment to align
       the slot.
  
!      If this macro is not defined, then BASIC-ALIGN is used when TYPE is
!      'NULL'.  Otherwise, 'LOCAL_ALIGNMENT' will be used.
  
       This macro is to set alignment of stack slot to the maximum
       alignment of all possible modes which the slot may have.
*************** expressions that refer to static variabl
*** 29138,29144 ****
       If defined, a C expression to compute the alignment for a local
       variable DECL.
  
!      If this macro is not defined, then `LOCAL_ALIGNMENT (TREE_TYPE
       (DECL), DECL_ALIGN (DECL))' is used.
  
       One use of this macro is to increase alignment of medium-size data
--- 28748,28754 ----
       If defined, a C expression to compute the alignment for a local
       variable DECL.
  
!      If this macro is not defined, then 'LOCAL_ALIGNMENT (TREE_TYPE
       (DECL), DECL_ALIGN (DECL))' is used.
  
       One use of this macro is to increase alignment of medium-size data
*************** expressions that refer to static variabl
*** 29149,29164 ****
  
   -- Macro: MINIMUM_ALIGNMENT (EXP, MODE, ALIGN)
       If defined, a C expression to compute the minimum required
!      alignment for dynamic stack realignment purposes for EXP (a type
!      or decl), MODE, assuming normal alignment ALIGN.
  
       If this macro is not defined, then ALIGN will be used.
  
   -- Macro: EMPTY_FIELD_BOUNDARY
!      Alignment in bits to be given to a structure bit-field that
!      follows an empty field such as `int : 0;'.
  
!      If `PCC_BITFIELD_TYPE_MATTERS' is true, it overrides this macro.
  
   -- Macro: STRUCTURE_SIZE_BOUNDARY
       Number of bits which any structure or union's size must be a
--- 28759,28774 ----
  
   -- Macro: MINIMUM_ALIGNMENT (EXP, MODE, ALIGN)
       If defined, a C expression to compute the minimum required
!      alignment for dynamic stack realignment purposes for EXP (a type or
!      decl), MODE, assuming normal alignment ALIGN.
  
       If this macro is not defined, then ALIGN will be used.
  
   -- Macro: EMPTY_FIELD_BOUNDARY
!      Alignment in bits to be given to a structure bit-field that follows
!      an empty field such as 'int : 0;'.
  
!      If 'PCC_BITFIELD_TYPE_MATTERS' is true, it overrides this macro.
  
   -- Macro: STRUCTURE_SIZE_BOUNDARY
       Number of bits which any structure or union's size must be a
*************** expressions that refer to static variabl
*** 29166,29172 ****
       multiple of this.
  
       If you do not define this macro, the default is the same as
!      `BITS_PER_UNIT'.
  
   -- Macro: STRICT_ALIGNMENT
       Define this macro to be the value 1 if instructions will fail to
--- 28776,28782 ----
       multiple of this.
  
       If you do not define this macro, the default is the same as
!      'BITS_PER_UNIT'.
  
   -- Macro: STRICT_ALIGNMENT
       Define this macro to be the value 1 if instructions will fail to
*************** expressions that refer to static variabl
*** 29178,29192 ****
       handle alignment of bit-fields and the structures that contain
       them.
  
!      The behavior is that the type written for a named bit-field (`int',
!      `short', or other integer type) imposes an alignment for the entire
!      structure, as if the structure really did contain an ordinary
!      field of that type.  In addition, the bit-field is placed within
!      the structure so that it would fit within such a field, not
!      crossing a boundary for it.
  
       Thus, on most machines, a named bit-field whose type is written as
!      `int' would not cross a four-byte boundary, and would force
       four-byte alignment for the whole structure.  (The alignment used
       may not be four bytes; it is controlled by the other alignment
       parameters.)
--- 28788,28802 ----
       handle alignment of bit-fields and the structures that contain
       them.
  
!      The behavior is that the type written for a named bit-field ('int',
!      'short', or other integer type) imposes an alignment for the entire
!      structure, as if the structure really did contain an ordinary field
!      of that type.  In addition, the bit-field is placed within the
!      structure so that it would fit within such a field, not crossing a
!      boundary for it.
  
       Thus, on most machines, a named bit-field whose type is written as
!      'int' would not cross a four-byte boundary, and would force
       four-byte alignment for the whole structure.  (The alignment used
       may not be four bytes; it is controlled by the other alignment
       parameters.)
*************** expressions that refer to static variabl
*** 29194,29214 ****
       An unnamed bit-field will not affect the alignment of the
       containing structure.
  
!      If the macro is defined, its definition should be a C expression;
!      a nonzero value for the expression enables this behavior.
  
       Note that if this macro is not defined, or its value is zero, some
       bit-fields may cross more than one alignment boundary.  The
!      compiler can support such references if there are `insv', `extv',
!      and `extzv' insns that can directly reference memory.
  
       The other known way of making bit-fields work is to define
!      `STRUCTURE_SIZE_BOUNDARY' as large as `BIGGEST_ALIGNMENT'.  Then
       every structure can be accessed with fullwords.
  
       Unless the machine has bit-field instructions or you define
!      `STRUCTURE_SIZE_BOUNDARY' that way, you must define
!      `PCC_BITFIELD_TYPE_MATTERS' to have a nonzero value.
  
       If your aim is to make GCC use the same conventions for laying out
       bit-fields as are used by another compiler, here is how to
--- 28804,28824 ----
       An unnamed bit-field will not affect the alignment of the
       containing structure.
  
!      If the macro is defined, its definition should be a C expression; a
!      nonzero value for the expression enables this behavior.
  
       Note that if this macro is not defined, or its value is zero, some
       bit-fields may cross more than one alignment boundary.  The
!      compiler can support such references if there are 'insv', 'extv',
!      and 'extzv' insns that can directly reference memory.
  
       The other known way of making bit-fields work is to define
!      'STRUCTURE_SIZE_BOUNDARY' as large as 'BIGGEST_ALIGNMENT'.  Then
       every structure can be accessed with fullwords.
  
       Unless the machine has bit-field instructions or you define
!      'STRUCTURE_SIZE_BOUNDARY' that way, you must define
!      'PCC_BITFIELD_TYPE_MATTERS' to have a nonzero value.
  
       If your aim is to make GCC use the same conventions for laying out
       bit-fields as are used by another compiler, here is how to
*************** expressions that refer to static variabl
*** 29239,29268 ****
            }
  
       If this prints 2 and 5, then the compiler's behavior is what you
!      would get from `PCC_BITFIELD_TYPE_MATTERS'.
  
   -- Macro: BITFIELD_NBYTES_LIMITED
!      Like `PCC_BITFIELD_TYPE_MATTERS' except that its effect is limited
       to aligning a bit-field within the structure.
  
   -- Target Hook: bool TARGET_ALIGN_ANON_BITFIELD (void)
!      When `PCC_BITFIELD_TYPE_MATTERS' is true this hook will determine
       whether unnamed bitfields affect the alignment of the containing
       structure.  The hook should return true if the structure should
       inherit the alignment requirements of an unnamed bitfield's type.
  
   -- Target Hook: bool TARGET_NARROW_VOLATILE_BITFIELD (void)
!      This target hook should return `true' if accesses to volatile
!      bitfields should use the narrowest mode possible.  It should
!      return `false' if these accesses should use the bitfield container
!      type.
  
!      The default is `false'.
  
   -- Target Hook: bool TARGET_MEMBER_TYPE_FORCES_BLK (const_tree FIELD,
            machine_mode MODE)
       Return true if a structure, union or array containing FIELD should
!      be accessed using `BLKMODE'.
  
       If FIELD is the only field in the structure, MODE is its mode,
       otherwise MODE is VOIDmode.  MODE is provided in the case where
--- 28849,28877 ----
            }
  
       If this prints 2 and 5, then the compiler's behavior is what you
!      would get from 'PCC_BITFIELD_TYPE_MATTERS'.
  
   -- Macro: BITFIELD_NBYTES_LIMITED
!      Like 'PCC_BITFIELD_TYPE_MATTERS' except that its effect is limited
       to aligning a bit-field within the structure.
  
   -- Target Hook: bool TARGET_ALIGN_ANON_BITFIELD (void)
!      When 'PCC_BITFIELD_TYPE_MATTERS' is true this hook will determine
       whether unnamed bitfields affect the alignment of the containing
       structure.  The hook should return true if the structure should
       inherit the alignment requirements of an unnamed bitfield's type.
  
   -- Target Hook: bool TARGET_NARROW_VOLATILE_BITFIELD (void)
!      This target hook should return 'true' if accesses to volatile
!      bitfields should use the narrowest mode possible.  It should return
!      'false' if these accesses should use the bitfield container type.
  
!      The default is 'false'.
  
   -- Target Hook: bool TARGET_MEMBER_TYPE_FORCES_BLK (const_tree FIELD,
            machine_mode MODE)
       Return true if a structure, union or array containing FIELD should
!      be accessed using 'BLKMODE'.
  
       If FIELD is the only field in the structure, MODE is its mode,
       otherwise MODE is VOIDmode.  MODE is provided in the case where
*************** expressions that refer to static variabl
*** 29277,29331 ****
       usual way is COMPUTED and the alignment explicitly specified was
       SPECIFIED.
  
!      The default is to use SPECIFIED if it is larger; otherwise, use
!      the smaller of COMPUTED and `BIGGEST_ALIGNMENT'
  
   -- Macro: MAX_FIXED_MODE_SIZE
       An integer expression for the size in bits of the largest integer
       machine mode that should actually be used.  All integer machine
!      modes of this size or smaller can be used for structures and
!      unions with the appropriate sizes.  If this macro is undefined,
!      `GET_MODE_BITSIZE (DImode)' is assumed.
  
   -- Macro: STACK_SAVEAREA_MODE (SAVE_LEVEL)
!      If defined, an expression of type `machine_mode' that specifies
!      the mode of the save area operand of a `save_stack_LEVEL' named
!      pattern (*note Standard Names::).  SAVE_LEVEL is one of
!      `SAVE_BLOCK', `SAVE_FUNCTION', or `SAVE_NONLOCAL' and selects
!      which of the three named patterns is having its mode specified.
  
!      You need not define this macro if it always returns `Pmode'.  You
!      would most commonly define this macro if the `save_stack_LEVEL'
       patterns need to support both a 32- and a 64-bit mode.
  
   -- Macro: STACK_SIZE_MODE
!      If defined, an expression of type `machine_mode' that specifies
!      the mode of the size increment operand of an `allocate_stack'
!      named pattern (*note Standard Names::).
  
!      You need not define this macro if it always returns `word_mode'.
!      You would most commonly define this macro if the `allocate_stack'
       pattern needs to support both a 32- and a 64-bit mode.
  
   -- Target Hook: machine_mode TARGET_LIBGCC_CMP_RETURN_MODE (void)
       This target hook should return the mode to be used for the return
       value of compare instructions expanded to libgcc calls.  If not
!      defined `word_mode' is returned which is the right choice for a
       majority of targets.
  
   -- Target Hook: machine_mode TARGET_LIBGCC_SHIFT_COUNT_MODE (void)
       This target hook should return the mode to be used for the shift
       count operand of shift instructions expanded to libgcc calls.  If
!      not defined `word_mode' is returned which is the right choice for
!      a majority of targets.
  
   -- Target Hook: machine_mode TARGET_UNWIND_WORD_MODE (void)
!      Return machine mode to be used for `_Unwind_Word' type.  The
!      default is to use `word_mode'.
  
   -- Target Hook: bool TARGET_MS_BITFIELD_LAYOUT_P (const_tree
            RECORD_TYPE)
!      This target hook returns `true' if bit-fields in the given
       RECORD_TYPE are to be laid out following the rules of Microsoft
       Visual C/C++, namely: (i) a bit-field won't share the same storage
       unit with the previous bit-field if their underlying types have
--- 28886,28940 ----
       usual way is COMPUTED and the alignment explicitly specified was
       SPECIFIED.
  
!      The default is to use SPECIFIED if it is larger; otherwise, use the
!      smaller of COMPUTED and 'BIGGEST_ALIGNMENT'
  
   -- Macro: MAX_FIXED_MODE_SIZE
       An integer expression for the size in bits of the largest integer
       machine mode that should actually be used.  All integer machine
!      modes of this size or smaller can be used for structures and unions
!      with the appropriate sizes.  If this macro is undefined,
!      'GET_MODE_BITSIZE (DImode)' is assumed.
  
   -- Macro: STACK_SAVEAREA_MODE (SAVE_LEVEL)
!      If defined, an expression of type 'machine_mode' that specifies the
!      mode of the save area operand of a 'save_stack_LEVEL' named pattern
!      (*note Standard Names::).  SAVE_LEVEL is one of 'SAVE_BLOCK',
!      'SAVE_FUNCTION', or 'SAVE_NONLOCAL' and selects which of the three
!      named patterns is having its mode specified.
  
!      You need not define this macro if it always returns 'Pmode'.  You
!      would most commonly define this macro if the 'save_stack_LEVEL'
       patterns need to support both a 32- and a 64-bit mode.
  
   -- Macro: STACK_SIZE_MODE
!      If defined, an expression of type 'machine_mode' that specifies the
!      mode of the size increment operand of an 'allocate_stack' named
!      pattern (*note Standard Names::).
  
!      You need not define this macro if it always returns 'word_mode'.
!      You would most commonly define this macro if the 'allocate_stack'
       pattern needs to support both a 32- and a 64-bit mode.
  
   -- Target Hook: machine_mode TARGET_LIBGCC_CMP_RETURN_MODE (void)
       This target hook should return the mode to be used for the return
       value of compare instructions expanded to libgcc calls.  If not
!      defined 'word_mode' is returned which is the right choice for a
       majority of targets.
  
   -- Target Hook: machine_mode TARGET_LIBGCC_SHIFT_COUNT_MODE (void)
       This target hook should return the mode to be used for the shift
       count operand of shift instructions expanded to libgcc calls.  If
!      not defined 'word_mode' is returned which is the right choice for a
!      majority of targets.
  
   -- Target Hook: machine_mode TARGET_UNWIND_WORD_MODE (void)
!      Return machine mode to be used for '_Unwind_Word' type.  The
!      default is to use 'word_mode'.
  
   -- Target Hook: bool TARGET_MS_BITFIELD_LAYOUT_P (const_tree
            RECORD_TYPE)
!      This target hook returns 'true' if bit-fields in the given
       RECORD_TYPE are to be laid out following the rules of Microsoft
       Visual C/C++, namely: (i) a bit-field won't share the same storage
       unit with the previous bit-field if their underlying types have
*************** expressions that refer to static variabl
*** 29334,29340 ****
       bit-field; (ii) a zero-sized bit-field will affect the alignment of
       the whole enclosing structure, even if it is unnamed; except that
       (iii) a zero-sized bit-field will be disregarded unless it follows
!      another bit-field of nonzero size.  If this hook returns `true',
       other macros that control bit-field layout are ignored.
  
       When a bit-field is inserted into a packed record, the whole size
--- 28943,28949 ----
       bit-field; (ii) a zero-sized bit-field will affect the alignment of
       the whole enclosing structure, even if it is unnamed; except that
       (iii) a zero-sized bit-field will be disregarded unless it follows
!      another bit-field of nonzero size.  If this hook returns 'true',
       other macros that control bit-field layout are ignored.
  
       When a bit-field is inserted into a packed record, the whole size
*************** expressions that refer to static variabl
*** 29345,29352 ****
       of that size is allocated).  In an unpacked record, this is the
       same as using alignment, but not equivalent when packing.
  
!      If both MS bit-fields and `__attribute__((packed))' are used, the
!      latter will take precedence.  If `__attribute__((packed))' is used
       on a single field when MS bit-fields are in use, it will take
       precedence for that field, but the alignment of the rest of the
       structure may affect its placement.
--- 28954,28961 ----
       of that size is allocated).  In an unpacked record, this is the
       same as using alignment, but not equivalent when packing.
  
!      If both MS bit-fields and '__attribute__((packed))' are used, the
!      latter will take precedence.  If '__attribute__((packed))' is used
       on a single field when MS bit-fields are in use, it will take
       precedence for that field, but the alignment of the rest of the
       structure may affect its placement.
*************** expressions that refer to static variabl
*** 29359,29366 ****
  
   -- Target Hook: void TARGET_EXPAND_TO_RTL_HOOK (void)
       This hook is called just before expansion into rtl, allowing the
!      target to perform additional initializations or analysis before
!      the expansion.  For example, the rs6000 port uses it to allocate a
       scratch stack slot for use in copying SDmode values between memory
       and floating point registers whenever the function being expanded
       has any SDmode usage.
--- 28968,28975 ----
  
   -- Target Hook: void TARGET_EXPAND_TO_RTL_HOOK (void)
       This hook is called just before expansion into rtl, allowing the
!      target to perform additional initializations or analysis before the
!      expansion.  For example, the rs6000 port uses it to allocate a
       scratch stack slot for use in copying SDmode values between memory
       and floating point registers whenever the function being expanded
       has any SDmode usage.
*************** expressions that refer to static variabl
*** 29376,29403 ****
       part of a C++ mangled name.  The TYPE argument is the tree
       structure representing the type to be mangled.  The hook may be
       applied to trees which are not target-specific fundamental types;
!      it should return `NULL' for all such types, as well as arguments
!      it does not recognize.  If the return value is not `NULL', it must
       point to a statically-allocated string constant.
  
       Target-specific fundamental types might be new fundamental types or
       qualified versions of ordinary fundamental types.  Encode new
!      fundamental types as `u N NAME', where NAME is the name used for
       the type in source code, and N is the length of NAME in decimal.
!      Encode qualified versions of ordinary types as `U N NAME CODE',
       where NAME is the name used for the type qualifier in source code,
       N is the length of NAME as above, and CODE is the code used to
       represent the unqualified version of this type.  (See
!      `write_builtin_type' in `cp/mangle.c' for the list of codes.)  In
!      both cases the spaces are for clarity; do not include any spaces
!      in your string.
  
       This hook is applied to types prior to typedef resolution.  If the
!      mangled name for a particular type depends only on that type's
!      main variant, you can perform typedef resolution yourself using
!      `TYPE_MAIN_VARIANT' before mangling.
  
!      The default version of this hook always returns `NULL', which is
       appropriate for a target that does not define any new fundamental
       types.
  
--- 28985,29012 ----
       part of a C++ mangled name.  The TYPE argument is the tree
       structure representing the type to be mangled.  The hook may be
       applied to trees which are not target-specific fundamental types;
!      it should return 'NULL' for all such types, as well as arguments it
!      does not recognize.  If the return value is not 'NULL', it must
       point to a statically-allocated string constant.
  
       Target-specific fundamental types might be new fundamental types or
       qualified versions of ordinary fundamental types.  Encode new
!      fundamental types as 'u N NAME', where NAME is the name used for
       the type in source code, and N is the length of NAME in decimal.
!      Encode qualified versions of ordinary types as 'U N NAME CODE',
       where NAME is the name used for the type qualifier in source code,
       N is the length of NAME as above, and CODE is the code used to
       represent the unqualified version of this type.  (See
!      'write_builtin_type' in 'cp/mangle.c' for the list of codes.)  In
!      both cases the spaces are for clarity; do not include any spaces in
!      your string.
  
       This hook is applied to types prior to typedef resolution.  If the
!      mangled name for a particular type depends only on that type's main
!      variant, you can perform typedef resolution yourself using
!      'TYPE_MAIN_VARIANT' before mangling.
  
!      The default version of this hook always returns 'NULL', which is
       appropriate for a target that does not define any new fundamental
       types.
  
*************** the previous section, these apply to spe
*** 29413,29619 ****
  languages, rather than to fundamental aspects of storage layout.
  
   -- Macro: INT_TYPE_SIZE
!      A C expression for the size in bits of the type `int' on the
!      target machine.  If you don't define this, the default is one word.
  
   -- Macro: SHORT_TYPE_SIZE
!      A C expression for the size in bits of the type `short' on the
       target machine.  If you don't define this, the default is half a
       word.  (If this would be less than one storage unit, it is rounded
       up to one unit.)
  
   -- Macro: LONG_TYPE_SIZE
!      A C expression for the size in bits of the type `long' on the
       target machine.  If you don't define this, the default is one word.
  
   -- Macro: ADA_LONG_TYPE_SIZE
       On some machines, the size used for the Ada equivalent of the type
!      `long' by a native Ada compiler differs from that used by C.  In
       that situation, define this macro to be a C expression to be used
       for the size of that type.  If you don't define this, the default
!      is the value of `LONG_TYPE_SIZE'.
  
   -- Macro: LONG_LONG_TYPE_SIZE
!      A C expression for the size in bits of the type `long long' on the
       target machine.  If you don't define this, the default is two
       words.  If you want to support GNU Ada on your machine, the value
       of this macro must be at least 64.
  
   -- Macro: CHAR_TYPE_SIZE
!      A C expression for the size in bits of the type `char' on the
       target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT'.
  
   -- Macro: BOOL_TYPE_SIZE
!      A C expression for the size in bits of the C++ type `bool' and C99
!      type `_Bool' on the target machine.  If you don't define this, and
!      you probably shouldn't, the default is `CHAR_TYPE_SIZE'.
  
   -- Macro: FLOAT_TYPE_SIZE
!      A C expression for the size in bits of the type `float' on the
       target machine.  If you don't define this, the default is one word.
  
   -- Macro: DOUBLE_TYPE_SIZE
!      A C expression for the size in bits of the type `double' on the
       target machine.  If you don't define this, the default is two
       words.
  
   -- Macro: LONG_DOUBLE_TYPE_SIZE
!      A C expression for the size in bits of the type `long double' on
       the target machine.  If you don't define this, the default is two
       words.
  
   -- Macro: SHORT_FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type `short _Fract' on
       the target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT'.
  
   -- Macro: FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type `_Fract' on the
       target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 2'.
  
   -- Macro: LONG_FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type `long _Fract' on
       the target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 4'.
  
   -- Macro: LONG_LONG_FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type `long long _Fract'
       on the target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 8'.
  
   -- Macro: SHORT_ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type `short _Accum' on
       the target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 2'.
  
   -- Macro: ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type `_Accum' on the
       target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 4'.
  
   -- Macro: LONG_ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type `long _Accum' on
       the target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 8'.
  
   -- Macro: LONG_LONG_ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type `long long _Accum'
       on the target machine.  If you don't define this, the default is
!      `BITS_PER_UNIT * 16'.
  
   -- Macro: LIBGCC2_GNU_PREFIX
!      This macro corresponds to the `TARGET_LIBFUNC_GNU_PREFIX' target
       hook and should be defined if that hook is overriden to be true.
!      It causes function names in libgcc to be changed to use a `__gnu_'
!      prefix for their name rather than the default `__'.  A port which
!      uses this macro should also arrange to use `t-gnu-prefix' in the
!      libgcc `config.host'.
  
   -- Macro: TARGET_FLT_EVAL_METHOD
!      A C expression for the value for `FLT_EVAL_METHOD' in `float.h',
!      assuming, if applicable, that the floating-point control word is
!      in its default state.  If you do not define this macro the value of
!      `FLT_EVAL_METHOD' will be zero.
  
   -- Macro: WIDEST_HARDWARE_FP_SIZE
       A C expression for the size in bits of the widest floating-point
       format supported by the hardware.  If you define this macro, you
       must specify a value less than or equal to the value of
!      `LONG_DOUBLE_TYPE_SIZE'.  If you do not define this macro, the
!      value of `LONG_DOUBLE_TYPE_SIZE' is the default.
  
   -- Macro: DEFAULT_SIGNED_CHAR
       An expression whose value is 1 or 0, according to whether the type
!      `char' should be signed or unsigned by default.  The user can
!      always override this default with the options `-fsigned-char' and
!      `-funsigned-char'.
  
   -- Target Hook: bool TARGET_DEFAULT_SHORT_ENUMS (void)
       This target hook should return true if the compiler should give an
!      `enum' type only as many bytes as it takes to represent the range
       of possible values of that type.  It should return false if all
!      `enum' types should be allocated like `int'.
  
       The default is to return false.
  
   -- Macro: SIZE_TYPE
!      A C expression for a string describing the name of the data type
!      to use for size values.  The typedef name `size_t' is defined
!      using the contents of the string.
  
!      The string can contain more than one keyword.  If so, separate
!      them with spaces, and write first any length keyword, then
!      `unsigned' if appropriate, and finally `int'.  The string must
!      exactly match one of the data type names defined in the function
!      `c_common_nodes_and_builtins' in the file `c-family/c-common.c'.
!      You may not omit `int' or change the order--that would cause the
       compiler to crash on startup.
  
!      If you don't define this macro, the default is `"long unsigned
       int"'.
  
   -- Macro: SIZETYPE
!      GCC defines internal types (`sizetype', `ssizetype', `bitsizetype'
!      and `sbitsizetype') for expressions dealing with size.  This macro
!      is a C expression for a string describing the name of the data
!      type from which the precision of `sizetype' is extracted.
  
!      The string has the same restrictions as `SIZE_TYPE' string.
  
!      If you don't define this macro, the default is `SIZE_TYPE'.
  
   -- Macro: PTRDIFF_TYPE
!      A C expression for a string describing the name of the data type
!      to use for the result of subtracting two pointers.  The typedef
!      name `ptrdiff_t' is defined using the contents of the string.  See
!      `SIZE_TYPE' above for more information.
  
!      If you don't define this macro, the default is `"long int"'.
  
   -- Macro: WCHAR_TYPE
!      A C expression for a string describing the name of the data type
!      to use for wide characters.  The typedef name `wchar_t' is defined
!      using the contents of the string.  See `SIZE_TYPE' above for more
       information.
  
!      If you don't define this macro, the default is `"int"'.
  
   -- Macro: WCHAR_TYPE_SIZE
       A C expression for the size in bits of the data type for wide
!      characters.  This is used in `cpp', which cannot make use of
!      `WCHAR_TYPE'.
  
   -- Macro: WINT_TYPE
       A C expression for a string describing the name of the data type to
!      use for wide characters passed to `printf' and returned from
!      `getwc'.  The typedef name `wint_t' is defined using the contents
!      of the string.  See `SIZE_TYPE' above for more information.
  
!      If you don't define this macro, the default is `"unsigned int"'.
  
   -- Macro: INTMAX_TYPE
       A C expression for a string describing the name of the data type
       that can represent any value of any standard or extended signed
!      integer type.  The typedef name `intmax_t' is defined using the
!      contents of the string.  See `SIZE_TYPE' above for more
       information.
  
       If you don't define this macro, the default is the first of
!      `"int"', `"long int"', or `"long long int"' that has as much
!      precision as `long long int'.
  
   -- Macro: UINTMAX_TYPE
       A C expression for a string describing the name of the data type
       that can represent any value of any standard or extended unsigned
!      integer type.  The typedef name `uintmax_t' is defined using the
!      contents of the string.  See `SIZE_TYPE' above for more
       information.
  
       If you don't define this macro, the default is the first of
!      `"unsigned int"', `"long unsigned int"', or `"long long unsigned
!      int"' that has as much precision as `long long unsigned int'.
  
   -- Macro: SIG_ATOMIC_TYPE
   -- Macro: INT8_TYPE
--- 29022,29228 ----
  languages, rather than to fundamental aspects of storage layout.
  
   -- Macro: INT_TYPE_SIZE
!      A C expression for the size in bits of the type 'int' on the target
!      machine.  If you don't define this, the default is one word.
  
   -- Macro: SHORT_TYPE_SIZE
!      A C expression for the size in bits of the type 'short' on the
       target machine.  If you don't define this, the default is half a
       word.  (If this would be less than one storage unit, it is rounded
       up to one unit.)
  
   -- Macro: LONG_TYPE_SIZE
!      A C expression for the size in bits of the type 'long' on the
       target machine.  If you don't define this, the default is one word.
  
   -- Macro: ADA_LONG_TYPE_SIZE
       On some machines, the size used for the Ada equivalent of the type
!      'long' by a native Ada compiler differs from that used by C.  In
       that situation, define this macro to be a C expression to be used
       for the size of that type.  If you don't define this, the default
!      is the value of 'LONG_TYPE_SIZE'.
  
   -- Macro: LONG_LONG_TYPE_SIZE
!      A C expression for the size in bits of the type 'long long' on the
       target machine.  If you don't define this, the default is two
       words.  If you want to support GNU Ada on your machine, the value
       of this macro must be at least 64.
  
   -- Macro: CHAR_TYPE_SIZE
!      A C expression for the size in bits of the type 'char' on the
       target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT'.
  
   -- Macro: BOOL_TYPE_SIZE
!      A C expression for the size in bits of the C++ type 'bool' and C99
!      type '_Bool' on the target machine.  If you don't define this, and
!      you probably shouldn't, the default is 'CHAR_TYPE_SIZE'.
  
   -- Macro: FLOAT_TYPE_SIZE
!      A C expression for the size in bits of the type 'float' on the
       target machine.  If you don't define this, the default is one word.
  
   -- Macro: DOUBLE_TYPE_SIZE
!      A C expression for the size in bits of the type 'double' on the
       target machine.  If you don't define this, the default is two
       words.
  
   -- Macro: LONG_DOUBLE_TYPE_SIZE
!      A C expression for the size in bits of the type 'long double' on
       the target machine.  If you don't define this, the default is two
       words.
  
   -- Macro: SHORT_FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type 'short _Fract' on
       the target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT'.
  
   -- Macro: FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type '_Fract' on the
       target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 2'.
  
   -- Macro: LONG_FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type 'long _Fract' on
       the target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 4'.
  
   -- Macro: LONG_LONG_FRACT_TYPE_SIZE
!      A C expression for the size in bits of the type 'long long _Fract'
       on the target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 8'.
  
   -- Macro: SHORT_ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type 'short _Accum' on
       the target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 2'.
  
   -- Macro: ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type '_Accum' on the
       target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 4'.
  
   -- Macro: LONG_ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type 'long _Accum' on
       the target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 8'.
  
   -- Macro: LONG_LONG_ACCUM_TYPE_SIZE
!      A C expression for the size in bits of the type 'long long _Accum'
       on the target machine.  If you don't define this, the default is
!      'BITS_PER_UNIT * 16'.
  
   -- Macro: LIBGCC2_GNU_PREFIX
!      This macro corresponds to the 'TARGET_LIBFUNC_GNU_PREFIX' target
       hook and should be defined if that hook is overriden to be true.
!      It causes function names in libgcc to be changed to use a '__gnu_'
!      prefix for their name rather than the default '__'.  A port which
!      uses this macro should also arrange to use 't-gnu-prefix' in the
!      libgcc 'config.host'.
  
   -- Macro: TARGET_FLT_EVAL_METHOD
!      A C expression for the value for 'FLT_EVAL_METHOD' in 'float.h',
!      assuming, if applicable, that the floating-point control word is in
!      its default state.  If you do not define this macro the value of
!      'FLT_EVAL_METHOD' will be zero.
  
   -- Macro: WIDEST_HARDWARE_FP_SIZE
       A C expression for the size in bits of the widest floating-point
       format supported by the hardware.  If you define this macro, you
       must specify a value less than or equal to the value of
!      'LONG_DOUBLE_TYPE_SIZE'.  If you do not define this macro, the
!      value of 'LONG_DOUBLE_TYPE_SIZE' is the default.
  
   -- Macro: DEFAULT_SIGNED_CHAR
       An expression whose value is 1 or 0, according to whether the type
!      'char' should be signed or unsigned by default.  The user can
!      always override this default with the options '-fsigned-char' and
!      '-funsigned-char'.
  
   -- Target Hook: bool TARGET_DEFAULT_SHORT_ENUMS (void)
       This target hook should return true if the compiler should give an
!      'enum' type only as many bytes as it takes to represent the range
       of possible values of that type.  It should return false if all
!      'enum' types should be allocated like 'int'.
  
       The default is to return false.
  
   -- Macro: SIZE_TYPE
!      A C expression for a string describing the name of the data type to
!      use for size values.  The typedef name 'size_t' is defined using
!      the contents of the string.
  
!      The string can contain more than one keyword.  If so, separate them
!      with spaces, and write first any length keyword, then 'unsigned' if
!      appropriate, and finally 'int'.  The string must exactly match one
!      of the data type names defined in the function
!      'c_common_nodes_and_builtins' in the file 'c-family/c-common.c'.
!      You may not omit 'int' or change the order--that would cause the
       compiler to crash on startup.
  
!      If you don't define this macro, the default is '"long unsigned
       int"'.
  
   -- Macro: SIZETYPE
!      GCC defines internal types ('sizetype', 'ssizetype', 'bitsizetype'
!      and 'sbitsizetype') for expressions dealing with size.  This macro
!      is a C expression for a string describing the name of the data type
!      from which the precision of 'sizetype' is extracted.
  
!      The string has the same restrictions as 'SIZE_TYPE' string.
  
!      If you don't define this macro, the default is 'SIZE_TYPE'.
  
   -- Macro: PTRDIFF_TYPE
!      A C expression for a string describing the name of the data type to
!      use for the result of subtracting two pointers.  The typedef name
!      'ptrdiff_t' is defined using the contents of the string.  See
!      'SIZE_TYPE' above for more information.
  
!      If you don't define this macro, the default is '"long int"'.
  
   -- Macro: WCHAR_TYPE
!      A C expression for a string describing the name of the data type to
!      use for wide characters.  The typedef name 'wchar_t' is defined
!      using the contents of the string.  See 'SIZE_TYPE' above for more
       information.
  
!      If you don't define this macro, the default is '"int"'.
  
   -- Macro: WCHAR_TYPE_SIZE
       A C expression for the size in bits of the data type for wide
!      characters.  This is used in 'cpp', which cannot make use of
!      'WCHAR_TYPE'.
  
   -- Macro: WINT_TYPE
       A C expression for a string describing the name of the data type to
!      use for wide characters passed to 'printf' and returned from
!      'getwc'.  The typedef name 'wint_t' is defined using the contents
!      of the string.  See 'SIZE_TYPE' above for more information.
  
!      If you don't define this macro, the default is '"unsigned int"'.
  
   -- Macro: INTMAX_TYPE
       A C expression for a string describing the name of the data type
       that can represent any value of any standard or extended signed
!      integer type.  The typedef name 'intmax_t' is defined using the
!      contents of the string.  See 'SIZE_TYPE' above for more
       information.
  
       If you don't define this macro, the default is the first of
!      '"int"', '"long int"', or '"long long int"' that has as much
!      precision as 'long long int'.
  
   -- Macro: UINTMAX_TYPE
       A C expression for a string describing the name of the data type
       that can represent any value of any standard or extended unsigned
!      integer type.  The typedef name 'uintmax_t' is defined using the
!      contents of the string.  See 'SIZE_TYPE' above for more
       information.
  
       If you don't define this macro, the default is the first of
!      '"unsigned int"', '"long unsigned int"', or '"long long unsigned
!      int"' that has as much precision as 'long long unsigned int'.
  
   -- Macro: SIG_ATOMIC_TYPE
   -- Macro: INT8_TYPE
*************** languages, rather than to fundamental as
*** 29642,29660 ****
   -- Macro: UINT_FAST64_TYPE
   -- Macro: INTPTR_TYPE
   -- Macro: UINTPTR_TYPE
!      C expressions for the standard types `sig_atomic_t', `int8_t',
!      `int16_t', `int32_t', `int64_t', `uint8_t', `uint16_t',
!      `uint32_t', `uint64_t', `int_least8_t', `int_least16_t',
!      `int_least32_t', `int_least64_t', `uint_least8_t',
!      `uint_least16_t', `uint_least32_t', `uint_least64_t',
!      `int_fast8_t', `int_fast16_t', `int_fast32_t', `int_fast64_t',
!      `uint_fast8_t', `uint_fast16_t', `uint_fast32_t', `uint_fast64_t',
!      `intptr_t', and `uintptr_t'.  See `SIZE_TYPE' above for more
!      information.
  
       If any of these macros evaluates to a null pointer, the
       corresponding type is not supported; if GCC is configured to
!      provide `<stdint.h>' in such a case, the header provided may not
       conform to C99, depending on the type in question.  The defaults
       for all of these macros are null pointers.
  
--- 29251,29268 ----
   -- Macro: UINT_FAST64_TYPE
   -- Macro: INTPTR_TYPE
   -- Macro: UINTPTR_TYPE
!      C expressions for the standard types 'sig_atomic_t', 'int8_t',
!      'int16_t', 'int32_t', 'int64_t', 'uint8_t', 'uint16_t', 'uint32_t',
!      'uint64_t', 'int_least8_t', 'int_least16_t', 'int_least32_t',
!      'int_least64_t', 'uint_least8_t', 'uint_least16_t',
!      'uint_least32_t', 'uint_least64_t', 'int_fast8_t', 'int_fast16_t',
!      'int_fast32_t', 'int_fast64_t', 'uint_fast8_t', 'uint_fast16_t',
!      'uint_fast32_t', 'uint_fast64_t', 'intptr_t', and 'uintptr_t'.  See
!      'SIZE_TYPE' above for more information.
  
       If any of these macros evaluates to a null pointer, the
       corresponding type is not supported; if GCC is configured to
!      provide '<stdint.h>' in such a case, the header provided may not
       conform to C99, depending on the type in question.  The defaults
       for all of these macros are null pointers.
  
*************** languages, rather than to fundamental as
*** 29677,29698 ****
       vtable_index is odd, we can distinguish which variant of the union
       is in use.  But, on some platforms function pointers can be odd,
       and so this doesn't work.  In that case, we use the low-order bit
!      of the `delta' field, and shift the remainder of the `delta' field
       to the left.
  
       GCC will automatically make the right selection about where to
!      store this bit using the `FUNCTION_BOUNDARY' setting for your
       platform.  However, some platforms such as ARM/Thumb have
!      `FUNCTION_BOUNDARY' set such that functions always start at even
       addresses, but the lowest bit of pointers to functions indicate
       whether the function at that address is in ARM or Thumb mode.  If
!      this is the case of your architecture, you should define this
!      macro to `ptrmemfunc_vbit_in_delta'.
  
       In general, you should not have to define this macro.  On
       architectures in which function addresses are always even,
!      according to `FUNCTION_BOUNDARY', GCC will automatically define
!      this macro to `ptrmemfunc_vbit_in_pfn'.
  
   -- Macro: TARGET_VTABLE_USES_DESCRIPTORS
       Normally, the C++ compiler uses function pointers in vtables.  This
--- 29285,29306 ----
       vtable_index is odd, we can distinguish which variant of the union
       is in use.  But, on some platforms function pointers can be odd,
       and so this doesn't work.  In that case, we use the low-order bit
!      of the 'delta' field, and shift the remainder of the 'delta' field
       to the left.
  
       GCC will automatically make the right selection about where to
!      store this bit using the 'FUNCTION_BOUNDARY' setting for your
       platform.  However, some platforms such as ARM/Thumb have
!      'FUNCTION_BOUNDARY' set such that functions always start at even
       addresses, but the lowest bit of pointers to functions indicate
       whether the function at that address is in ARM or Thumb mode.  If
!      this is the case of your architecture, you should define this macro
!      to 'ptrmemfunc_vbit_in_delta'.
  
       In general, you should not have to define this macro.  On
       architectures in which function addresses are always even,
!      according to 'FUNCTION_BOUNDARY', GCC will automatically define
!      this macro to 'ptrmemfunc_vbit_in_pfn'.
  
   -- Macro: TARGET_VTABLE_USES_DESCRIPTORS
       Normally, the C++ compiler uses function pointers in vtables.  This
*************** languages, rather than to fundamental as
*** 29709,29720 ****
       By default, the vtable entries are void pointers, the so the
       alignment is the same as pointer alignment.  The value of this
       macro specifies the alignment of the vtable entry in bits.  It
!      should be defined only when special alignment is necessary. */
  
   -- Macro: TARGET_VTABLE_DATA_ENTRY_DISTANCE
       There are a few non-descriptor entries in the vtable at offsets
       below zero.  If these entries must be padded (say, to preserve the
!      alignment specified by `TARGET_VTABLE_ENTRY_ALIGN'), set this to
       the number of words in each data entry.
  
  
--- 29317,29328 ----
       By default, the vtable entries are void pointers, the so the
       alignment is the same as pointer alignment.  The value of this
       macro specifies the alignment of the vtable entry in bits.  It
!      should be defined only when special alignment is necessary.  */
  
   -- Macro: TARGET_VTABLE_DATA_ENTRY_DISTANCE
       There are a few non-descriptor entries in the vtable at offsets
       below zero.  If these entries must be padded (say, to preserve the
!      alignment specified by 'TARGET_VTABLE_ENTRY_ALIGN'), set this to
       the number of words in each data entry.
  
  
*************** Registers have various characteristics.
*** 29751,29759 ****
  
   -- Macro: FIRST_PSEUDO_REGISTER
       Number of hardware registers known to the compiler.  They receive
!      numbers 0 through `FIRST_PSEUDO_REGISTER-1'; thus, the first
!      pseudo register's number really is assigned the number
!      `FIRST_PSEUDO_REGISTER'.
  
   -- Macro: FIXED_REGISTERS
       An initializer that says which registers are used for fixed
--- 29359,29367 ----
  
   -- Macro: FIRST_PSEUDO_REGISTER
       Number of hardware registers known to the compiler.  They receive
!      numbers 0 through 'FIRST_PSEUDO_REGISTER-1'; thus, the first pseudo
!      register's number really is assigned the number
!      'FIRST_PSEUDO_REGISTER'.
  
   -- Macro: FIXED_REGISTERS
       An initializer that says which registers are used for fixed
*************** Registers have various characteristics.
*** 29772,29797 ****
       The table initialized from this macro, and the table initialized by
       the following one, may be overridden at run time either
       automatically, by the actions of the macro
!      `CONDITIONAL_REGISTER_USAGE', or by the user with the command
!      options `-ffixed-REG', `-fcall-used-REG' and `-fcall-saved-REG'.
  
   -- Macro: CALL_USED_REGISTERS
!      Like `FIXED_REGISTERS' but has 1 for each register that is
       clobbered (in general) by function calls as well as for fixed
       registers.  This macro therefore identifies the registers that are
       not available for general allocation of values that must live
       across function calls.
  
!      If a register has 0 in `CALL_USED_REGISTERS', the compiler
       automatically saves it on function entry and restores it on
       function exit, if the register is used within the function.
  
   -- Macro: CALL_REALLY_USED_REGISTERS
!      Like `CALL_USED_REGISTERS' except this macro doesn't require that
!      the entire set of `FIXED_REGISTERS' be included.
!      (`CALL_USED_REGISTERS' must be a superset of `FIXED_REGISTERS').
       This macro is optional.  If not specified, it defaults to the value
!      of `CALL_USED_REGISTERS'.
  
   -- Macro: HARD_REGNO_CALL_PART_CLOBBERED (REGNO, MODE)
       A C expression that is nonzero if it is not permissible to store a
--- 29380,29405 ----
       The table initialized from this macro, and the table initialized by
       the following one, may be overridden at run time either
       automatically, by the actions of the macro
!      'CONDITIONAL_REGISTER_USAGE', or by the user with the command
!      options '-ffixed-REG', '-fcall-used-REG' and '-fcall-saved-REG'.
  
   -- Macro: CALL_USED_REGISTERS
!      Like 'FIXED_REGISTERS' but has 1 for each register that is
       clobbered (in general) by function calls as well as for fixed
       registers.  This macro therefore identifies the registers that are
       not available for general allocation of values that must live
       across function calls.
  
!      If a register has 0 in 'CALL_USED_REGISTERS', the compiler
       automatically saves it on function entry and restores it on
       function exit, if the register is used within the function.
  
   -- Macro: CALL_REALLY_USED_REGISTERS
!      Like 'CALL_USED_REGISTERS' except this macro doesn't require that
!      the entire set of 'FIXED_REGISTERS' be included.
!      ('CALL_USED_REGISTERS' must be a superset of 'FIXED_REGISTERS').
       This macro is optional.  If not specified, it defaults to the value
!      of 'CALL_USED_REGISTERS'.
  
   -- Macro: HARD_REGNO_CALL_PART_CLOBBERED (REGNO, MODE)
       A C expression that is nonzero if it is not permissible to store a
*************** Registers have various characteristics.
*** 29801,29850 ****
       do not preserve the entire contents of a register across a call.
  
   -- Target Hook: void TARGET_CONDITIONAL_REGISTER_USAGE (void)
!      This hook may conditionally modify five variables `fixed_regs',
!      `call_used_regs', `global_regs', `reg_names', and
!      `reg_class_contents', to take into account any dependence of these
       register sets on target flags.  The first three of these are of
!      type `char []' (interpreted as Boolean vectors).  `global_regs' is
!      a `const char *[]', and `reg_class_contents' is a `HARD_REG_SET'.
!      Before the macro is called, `fixed_regs', `call_used_regs',
!      `reg_class_contents', and `reg_names' have been initialized from
!      `FIXED_REGISTERS', `CALL_USED_REGISTERS', `REG_CLASS_CONTENTS',
!      and `REGISTER_NAMES', respectively.  `global_regs' has been
!      cleared, and any `-ffixed-REG', `-fcall-used-REG' and
!      `-fcall-saved-REG' command options have been applied.
  
       If the usage of an entire class of registers depends on the target
       flags, you may indicate this to GCC by using this macro to modify
!      `fixed_regs' and `call_used_regs' to 1 for each of the registers
!      in the classes which should not be used by GCC.  Also make
!      `define_register_constraint's return `NO_REGS' for constraints
!      that shouldn't be used.
  
!      (However, if this class is not included in `GENERAL_REGS' and all
       of the insn patterns whose constraints permit this class are
       controlled by target switches, then GCC will automatically avoid
       using these registers when the target switches are opposed to
       them.)
  
   -- Macro: INCOMING_REGNO (OUT)
!      Define this macro if the target machine has register windows.
!      This C expression returns the register number as seen by the
!      called function corresponding to the register number OUT as seen
!      by the calling function.  Return OUT if register number OUT is not
!      an outbound register.
  
   -- Macro: OUTGOING_REGNO (IN)
!      Define this macro if the target machine has register windows.
!      This C expression returns the register number as seen by the
!      calling function corresponding to the register number IN as seen
!      by the called function.  Return IN if register number IN is not an
!      inbound register.
  
   -- Macro: LOCAL_REGNO (REGNO)
!      Define this macro if the target machine has register windows.
!      This C expression returns true if the register is call-saved but
!      is in the register window.  Unlike most call-saved registers, such
       registers need not be explicitly restored on function exit or
       during non-local gotos.
  
--- 29409,29458 ----
       do not preserve the entire contents of a register across a call.
  
   -- Target Hook: void TARGET_CONDITIONAL_REGISTER_USAGE (void)
!      This hook may conditionally modify five variables 'fixed_regs',
!      'call_used_regs', 'global_regs', 'reg_names', and
!      'reg_class_contents', to take into account any dependence of these
       register sets on target flags.  The first three of these are of
!      type 'char []' (interpreted as Boolean vectors).  'global_regs' is
!      a 'const char *[]', and 'reg_class_contents' is a 'HARD_REG_SET'.
!      Before the macro is called, 'fixed_regs', 'call_used_regs',
!      'reg_class_contents', and 'reg_names' have been initialized from
!      'FIXED_REGISTERS', 'CALL_USED_REGISTERS', 'REG_CLASS_CONTENTS', and
!      'REGISTER_NAMES', respectively.  'global_regs' has been cleared,
!      and any '-ffixed-REG', '-fcall-used-REG' and '-fcall-saved-REG'
!      command options have been applied.
  
       If the usage of an entire class of registers depends on the target
       flags, you may indicate this to GCC by using this macro to modify
!      'fixed_regs' and 'call_used_regs' to 1 for each of the registers in
!      the classes which should not be used by GCC.  Also make
!      'define_register_constraint's return 'NO_REGS' for constraints that
!      shouldn't be used.
  
!      (However, if this class is not included in 'GENERAL_REGS' and all
       of the insn patterns whose constraints permit this class are
       controlled by target switches, then GCC will automatically avoid
       using these registers when the target switches are opposed to
       them.)
  
   -- Macro: INCOMING_REGNO (OUT)
!      Define this macro if the target machine has register windows.  This
!      C expression returns the register number as seen by the called
!      function corresponding to the register number OUT as seen by the
!      calling function.  Return OUT if register number OUT is not an
!      outbound register.
  
   -- Macro: OUTGOING_REGNO (IN)
!      Define this macro if the target machine has register windows.  This
!      C expression returns the register number as seen by the calling
!      function corresponding to the register number IN as seen by the
!      called function.  Return IN if register number IN is not an inbound
!      register.
  
   -- Macro: LOCAL_REGNO (REGNO)
!      Define this macro if the target machine has register windows.  This
!      C expression returns true if the register is call-saved but is in
!      the register window.  Unlike most call-saved registers, such
       registers need not be explicitly restored on function exit or
       during non-local gotos.
  
*************** Registers are allocated in order.
*** 29871,29877 ****
       One use of this macro is on machines where the highest numbered
       registers must always be saved and the save-multiple-registers
       instruction supports only sequences of consecutive registers.  On
!      such machines, define `REG_ALLOC_ORDER' to be an initializer that
       lists the highest numbered allocable register first.
  
   -- Macro: ADJUST_REG_ALLOC_ORDER
--- 29479,29485 ----
       One use of this macro is on machines where the highest numbered
       registers must always be saved and the save-multiple-registers
       instruction supports only sequences of consecutive registers.  On
!      such machines, define 'REG_ALLOC_ORDER' to be an initializer that
       lists the highest numbered allocable register first.
  
   -- Macro: ADJUST_REG_ALLOC_ORDER
*************** Registers are allocated in order.
*** 29879,29901 ****
       allocate hard registers for pseudo-registers local to a basic
       block.
  
!      Store the desired register order in the array `reg_alloc_order'.
       Element 0 should be the register to allocate first; element 1, the
       next register; and so on.
  
       The macro body should not assume anything about the contents of
!      `reg_alloc_order' before execution of the macro.
  
       On most machines, it is not necessary to define this macro.
  
   -- Macro: HONOR_REG_ALLOC_ORDER
       Normally, IRA tries to estimate the costs for saving a register in
!      the prologue and restoring it in the epilogue.  This discourages
!      it from using call-saved registers.  If a machine wants to ensure
!      that IRA allocates registers in the order given by REG_ALLOC_ORDER
!      even if some call-saved registers appear earlier than call-used
!      ones, then define this macro as a C expression to nonzero. Default
!      is 0.
  
   -- Macro: IRA_HARD_REGNO_ADD_COST_MULTIPLIER (REGNO)
       In some case register allocation order is not enough for the
--- 29487,29508 ----
       allocate hard registers for pseudo-registers local to a basic
       block.
  
!      Store the desired register order in the array 'reg_alloc_order'.
       Element 0 should be the register to allocate first; element 1, the
       next register; and so on.
  
       The macro body should not assume anything about the contents of
!      'reg_alloc_order' before execution of the macro.
  
       On most machines, it is not necessary to define this macro.
  
   -- Macro: HONOR_REG_ALLOC_ORDER
       Normally, IRA tries to estimate the costs for saving a register in
!      the prologue and restoring it in the epilogue.  This discourages it
!      from using call-saved registers.  If a machine wants to ensure that
!      IRA allocates registers in the order given by REG_ALLOC_ORDER even
!      if some call-saved registers appear earlier than call-used ones,
!      then define this macro as a C expression to nonzero.  Default is 0.
  
   -- Macro: IRA_HARD_REGNO_ADD_COST_MULTIPLIER (REGNO)
       In some case register allocation order is not enough for the
*************** Registers are allocated in order.
*** 29904,29910 ****
       based on REGNO.  The cost of using REGNO for a pseudo will be
       increased by approximately the pseudo's usage frequency times the
       value returned by this macro.  Not defining this macro is
!      equivalent to having it always return `0.0'.
  
       On most machines, it is not necessary to define this macro.
  
--- 29511,29517 ----
       based on REGNO.  The cost of using REGNO for a pseudo will be
       increased by approximately the pseudo's usage frequency times the
       value returned by this macro.  Not defining this macro is
!      equivalent to having it always return '0.0'.
  
       On most machines, it is not necessary to define this macro.
  
*************** consecutive registers are needed for a g
*** 29921,29929 ****
   -- Macro: HARD_REGNO_NREGS (REGNO, MODE)
       A C expression for the number of consecutive hard registers,
       starting at register number REGNO, required to hold a value of mode
!      MODE.  This macro must never return zero, even if a register
!      cannot hold the requested mode - indicate that with
!      HARD_REGNO_MODE_OK and/or CANNOT_CHANGE_MODE_CLASS instead.
  
       On a machine where all registers are exactly one word, a suitable
       definition of this macro is
--- 29528,29536 ----
   -- Macro: HARD_REGNO_NREGS (REGNO, MODE)
       A C expression for the number of consecutive hard registers,
       starting at register number REGNO, required to hold a value of mode
!      MODE.  This macro must never return zero, even if a register cannot
!      hold the requested mode - indicate that with HARD_REGNO_MODE_OK
!      and/or CANNOT_CHANGE_MODE_CLASS instead.
  
       On a machine where all registers are exactly one word, a suitable
       definition of this macro is
*************** consecutive registers are needed for a g
*** 29938,29961 ****
       in registers starting at register number REGNO (as determined by
       multiplying GCC's notion of the size of the register when
       containing this mode by the number of registers returned by
!      `HARD_REGNO_NREGS').  By default this is zero.
  
       For example, if a floating-point value is stored in three 32-bit
       registers but takes up 128 bits in memory, then this would be
       nonzero.
  
       This macros only needs to be defined if there are cases where
!      `subreg_get_info' would otherwise wrongly determine that a
!      `subreg' can be represented by an offset to the register number,
!      when in fact such a `subreg' would contain some of the padding not
!      stored in registers and so not be representable.
  
   -- Macro: HARD_REGNO_NREGS_WITH_PADDING (REGNO, MODE)
       For values of REGNO and MODE for which
!      `HARD_REGNO_NREGS_HAS_PADDING' returns nonzero, a C expression
       returning the greater number of registers required to hold the
!      value including any padding.  In the example above, the value
!      would be four.
  
   -- Macro: REGMODE_NATURAL_SIZE (MODE)
       Define this macro if the natural size of registers that hold values
--- 29545,29568 ----
       in registers starting at register number REGNO (as determined by
       multiplying GCC's notion of the size of the register when
       containing this mode by the number of registers returned by
!      'HARD_REGNO_NREGS').  By default this is zero.
  
       For example, if a floating-point value is stored in three 32-bit
       registers but takes up 128 bits in memory, then this would be
       nonzero.
  
       This macros only needs to be defined if there are cases where
!      'subreg_get_info' would otherwise wrongly determine that a 'subreg'
!      can be represented by an offset to the register number, when in
!      fact such a 'subreg' would contain some of the padding not stored
!      in registers and so not be representable.
  
   -- Macro: HARD_REGNO_NREGS_WITH_PADDING (REGNO, MODE)
       For values of REGNO and MODE for which
!      'HARD_REGNO_NREGS_HAS_PADDING' returns nonzero, a C expression
       returning the greater number of registers required to hold the
!      value including any padding.  In the example above, the value would
!      be four.
  
   -- Macro: REGMODE_NATURAL_SIZE (MODE)
       Define this macro if the natural size of registers that hold values
*************** consecutive registers are needed for a g
*** 29982,30030 ****
       reject odd register numbers for such modes.
  
       The minimum requirement for a mode to be OK in a register is that
!      the `movMODE' instruction pattern support moves between the
       register and other hard register in the same class and that moving
       a value into the register and back out not alter it.
  
!      Since the same instruction used to move `word_mode' will work for
       all narrower integer modes, it is not necessary on any machine for
!      `HARD_REGNO_MODE_OK' to distinguish between these modes, provided
!      you define patterns `movhi', etc., to take advantage of this.  This
!      is useful because of the interaction between `HARD_REGNO_MODE_OK'
!      and `MODES_TIEABLE_P'; it is very desirable for all integer modes
       to be tieable.
  
       Many machines have special registers for floating point arithmetic.
       Often people assume that floating point machine modes are allowed
!      only in floating point registers.  This is not true.  Any
!      registers that can hold integers can safely _hold_ a floating
!      point machine mode, whether or not floating arithmetic can be done
!      on it in those registers.  Integer move instructions can be used
!      to move the values.
  
       On some machines, though, the converse is true: fixed-point machine
       modes may not go in floating registers.  This is true if the
       floating registers normalize any value stored in them, because
       storing a non-floating value there would garble it.  In this case,
!      `HARD_REGNO_MODE_OK' should reject fixed-point machine modes in
       floating registers.  But if the floating registers do not
       automatically normalize, if you can store any bit pattern in one
!      and retrieve it unchanged without a trap, then any machine mode
!      may go in a floating register, so you can define this macro to say
!      so.
  
       The primary significance of special floating registers is rather
       that they are the registers acceptable in floating point arithmetic
       instructions.  However, this is of no concern to
!      `HARD_REGNO_MODE_OK'.  You handle it by writing the proper
       constraints for those instructions.
  
       On some machines, the floating registers are especially slow to
!      access, so that it is better to store a value in a stack frame
!      than in such a register if floating point arithmetic is not being
!      done.  As long as the floating registers are not in class
!      `GENERAL_REGS', they will not be used unless some pattern's
!      constraint asks for one.
  
   -- Macro: HARD_REGNO_RENAME_OK (FROM, TO)
       A C expression that is nonzero if it is OK to rename a hard
--- 29589,29636 ----
       reject odd register numbers for such modes.
  
       The minimum requirement for a mode to be OK in a register is that
!      the 'movMODE' instruction pattern support moves between the
       register and other hard register in the same class and that moving
       a value into the register and back out not alter it.
  
!      Since the same instruction used to move 'word_mode' will work for
       all narrower integer modes, it is not necessary on any machine for
!      'HARD_REGNO_MODE_OK' to distinguish between these modes, provided
!      you define patterns 'movhi', etc., to take advantage of this.  This
!      is useful because of the interaction between 'HARD_REGNO_MODE_OK'
!      and 'MODES_TIEABLE_P'; it is very desirable for all integer modes
       to be tieable.
  
       Many machines have special registers for floating point arithmetic.
       Often people assume that floating point machine modes are allowed
!      only in floating point registers.  This is not true.  Any registers
!      that can hold integers can safely _hold_ a floating point machine
!      mode, whether or not floating arithmetic can be done on it in those
!      registers.  Integer move instructions can be used to move the
!      values.
  
       On some machines, though, the converse is true: fixed-point machine
       modes may not go in floating registers.  This is true if the
       floating registers normalize any value stored in them, because
       storing a non-floating value there would garble it.  In this case,
!      'HARD_REGNO_MODE_OK' should reject fixed-point machine modes in
       floating registers.  But if the floating registers do not
       automatically normalize, if you can store any bit pattern in one
!      and retrieve it unchanged without a trap, then any machine mode may
!      go in a floating register, so you can define this macro to say so.
  
       The primary significance of special floating registers is rather
       that they are the registers acceptable in floating point arithmetic
       instructions.  However, this is of no concern to
!      'HARD_REGNO_MODE_OK'.  You handle it by writing the proper
       constraints for those instructions.
  
       On some machines, the floating registers are especially slow to
!      access, so that it is better to store a value in a stack frame than
!      in such a register if floating point arithmetic is not being done.
!      As long as the floating registers are not in class 'GENERAL_REGS',
!      they will not be used unless some pattern's constraint asks for
!      one.
  
   -- Macro: HARD_REGNO_RENAME_OK (FROM, TO)
       A C expression that is nonzero if it is OK to rename a hard
*************** consecutive registers are needed for a g
*** 30040,30069 ****
       A C expression that is nonzero if a value of mode MODE1 is
       accessible in mode MODE2 without copying.
  
!      If `HARD_REGNO_MODE_OK (R, MODE1)' and `HARD_REGNO_MODE_OK (R,
!      MODE2)' are always the same for any R, then `MODES_TIEABLE_P
       (MODE1, MODE2)' should be nonzero.  If they differ for any R, you
!      should define this macro to return zero unless some other
!      mechanism ensures the accessibility of the value in a narrower
!      mode.
  
       You should define this macro to return nonzero in as many cases as
       possible since doing so will allow GCC to perform better register
       allocation.
  
   -- Target Hook: bool TARGET_HARD_REGNO_SCRATCH_OK (unsigned int REGNO)
!      This target hook should return `true' if it is OK to use a hard
       register REGNO as scratch reg in peephole2.
  
       One common use of this macro is to prevent using of a register that
       is not saved by a prologue in an interrupt handler.
  
!      The default version of this hook always returns `true'.
  
   -- Macro: AVOID_CCMODE_COPIES
       Define this macro if the compiler should avoid copies to/from
!      `CCmode' registers.  You should only define this macro if support
!      for copying to/from `CCmode' is incomplete.
  
  
  File: gccint.info,  Node: Leaf Functions,  Next: Stack Registers,  Prev: Values in Registers,  Up: Registers
--- 29646,29674 ----
       A C expression that is nonzero if a value of mode MODE1 is
       accessible in mode MODE2 without copying.
  
!      If 'HARD_REGNO_MODE_OK (R, MODE1)' and 'HARD_REGNO_MODE_OK (R,
!      MODE2)' are always the same for any R, then 'MODES_TIEABLE_P
       (MODE1, MODE2)' should be nonzero.  If they differ for any R, you
!      should define this macro to return zero unless some other mechanism
!      ensures the accessibility of the value in a narrower mode.
  
       You should define this macro to return nonzero in as many cases as
       possible since doing so will allow GCC to perform better register
       allocation.
  
   -- Target Hook: bool TARGET_HARD_REGNO_SCRATCH_OK (unsigned int REGNO)
!      This target hook should return 'true' if it is OK to use a hard
       register REGNO as scratch reg in peephole2.
  
       One common use of this macro is to prevent using of a register that
       is not saved by a prologue in an interrupt handler.
  
!      The default version of this hook always returns 'true'.
  
   -- Macro: AVOID_CCMODE_COPIES
       Define this macro if the compiler should avoid copies to/from
!      'CCmode' registers.  You should only define this macro if support
!      for copying to/from 'CCmode' is incomplete.
  
  
  File: gccint.info,  Node: Leaf Functions,  Next: Stack Registers,  Prev: Values in Registers,  Up: Registers
*************** File: gccint.info,  Node: Leaf Functions
*** 30072,30088 ****
  ------------------------------
  
  On some machines, a leaf function (i.e., one which makes no calls) can
! run more efficiently if it does not make its own register window.
! Often this means it is required to receive its arguments in the
! registers where they are passed by the caller, instead of the registers
! where they would normally arrive.
  
   The special treatment for leaf functions generally applies only when
  other conditions are met; for example, often they may use only those
  registers for its own variables and temporaries.  We use the term "leaf
! function" to mean a function that is suitable for this special
! handling, so that functions with no calls are not necessarily "leaf
! functions".
  
   GCC assigns register numbers before it knows whether the function is
  suitable for leaf function treatment.  So it needs to renumber the
--- 29677,29692 ----
  ------------------------------
  
  On some machines, a leaf function (i.e., one which makes no calls) can
! run more efficiently if it does not make its own register window.  Often
! this means it is required to receive its arguments in the registers
! where they are passed by the caller, instead of the registers where they
! would normally arrive.
  
   The special treatment for leaf functions generally applies only when
  other conditions are met; for example, often they may use only those
  registers for its own variables and temporaries.  We use the term "leaf
! function" to mean a function that is suitable for this special handling,
! so that functions with no calls are not necessarily "leaf functions".
  
   GCC assigns register numbers before it knows whether the function is
  suitable for leaf function treatment.  So it needs to renumber the
*************** accomplish this.
*** 30094,30101 ****
       contains 1 for a register that is allowable in a candidate for leaf
       function treatment.
  
!      If leaf function treatment involves renumbering the registers,
!      then the registers marked here should be the ones before
       renumbering--those that GCC would ordinarily allocate.  The
       registers which will actually be used in the assembler code, after
       renumbering, should not be marked with 1 in this vector.
--- 29698,29705 ----
       contains 1 for a register that is allowable in a candidate for leaf
       function treatment.
  
!      If leaf function treatment involves renumbering the registers, then
!      the registers marked here should be the ones before
       renumbering--those that GCC would ordinarily allocate.  The
       registers which will actually be used in the assembler code, after
       renumbering, should not be marked with 1 in this vector.
*************** accomplish this.
*** 30116,30131 ****
       optimize the treatment of leaf functions, and registers need to be
       renumbered to do this.
  
!  `TARGET_ASM_FUNCTION_PROLOGUE' and `TARGET_ASM_FUNCTION_EPILOGUE' must
  usually treat leaf functions specially.  They can test the C variable
! `current_function_is_leaf' which is nonzero for leaf functions.
! `current_function_is_leaf' is set prior to local register allocation
! and is valid for the remaining compiler passes.  They can also test the
! C variable `current_function_uses_only_leaf_regs' which is nonzero for
  leaf functions which only use leaf registers.
! `current_function_uses_only_leaf_regs' is valid after all passes that
  modify the instructions have been run and is only useful if
! `LEAF_REGISTERS' is defined.
  
  
  File: gccint.info,  Node: Stack Registers,  Prev: Leaf Functions,  Up: Registers
--- 29720,29735 ----
       optimize the treatment of leaf functions, and registers need to be
       renumbered to do this.
  
!  'TARGET_ASM_FUNCTION_PROLOGUE' and 'TARGET_ASM_FUNCTION_EPILOGUE' must
  usually treat leaf functions specially.  They can test the C variable
! 'current_function_is_leaf' which is nonzero for leaf functions.
! 'current_function_is_leaf' is set prior to local register allocation and
! is valid for the remaining compiler passes.  They can also test the C
! variable 'current_function_uses_only_leaf_regs' which is nonzero for
  leaf functions which only use leaf registers.
! 'current_function_uses_only_leaf_regs' is valid after all passes that
  modify the instructions have been run and is only useful if
! 'LEAF_REGISTERS' is defined.
  
  
  File: gccint.info,  Node: Stack Registers,  Prev: Leaf Functions,  Up: Registers
*************** stack.
*** 30142,30150 ****
  they must be consecutively numbered.  Furthermore, the existing support
  for stack-like registers is specific to the 80387 floating point
  coprocessor.  If you have a new architecture that uses stack-like
! registers, you will need to do substantial work on `reg-stack.c' and
! write your machine description to cooperate with it, as well as
! defining these macros.
  
   -- Macro: STACK_REGS
       Define this if the machine has any stack-like registers.
--- 29746,29754 ----
  they must be consecutively numbered.  Furthermore, the existing support
  for stack-like registers is specific to the 80387 floating point
  coprocessor.  If you have a new architecture that uses stack-like
! registers, you will need to do substantial work on 'reg-stack.c' and
! write your machine description to cooperate with it, as well as defining
! these macros.
  
   -- Macro: STACK_REGS
       Define this if the machine has any stack-like registers.
*************** defining these macros.
*** 30158,30165 ****
       of the stack.
  
   -- Macro: LAST_STACK_REG
!      The number of the last stack-like register.  This one is the
!      bottom of the stack.
  
  
  File: gccint.info,  Node: Register Classes,  Next: Stack and Calling,  Prev: Registers,  Up: Target Macros
--- 29762,29769 ----
       of the stack.
  
   -- Macro: LAST_STACK_REG
!      The number of the last stack-like register.  This one is the bottom
!      of the stack.
  
  
  File: gccint.info,  Node: Register Classes,  Next: Stack and Calling,  Prev: Registers,  Up: Target Macros
*************** register classes that are allowed as ope
*** 30179,30214 ****
  patterns.
  
   In general, each register will belong to several classes.  In fact, one
! class must be named `ALL_REGS' and contain all the registers.  Another
! class must be named `NO_REGS' and contain no registers.  Often the
! union of two classes will be another class; however, this is not
! required.
  
!  One of the classes must be named `GENERAL_REGS'.  There is nothing
! terribly special about the name, but the operand constraint letters `r'
! and `g' specify this class.  If `GENERAL_REGS' is the same as
! `ALL_REGS', just define it as a macro which expands to `ALL_REGS'.
  
!  Order the classes so that if class X is contained in class Y then X
! has a lower class number than Y.
  
!  The way classes other than `GENERAL_REGS' are specified in operand
  constraints is through machine-dependent operand constraint letters.
  You can define such letters to correspond to various classes, then use
  them in operand constraints.
  
   You must define the narrowest register classes for allocatable
! registers, so that each class either has no subclasses, or that for
! some mode, the move cost between registers within the class is cheaper
! than moving a register in the class to or from memory (*note Costs::).
  
   You should define a class for the union of two classes whenever some
  instruction allows both classes.  For example, if an instruction allows
! either a floating point (coprocessor) register or a general register
! for a certain operand, you should define a class `FLOAT_OR_GENERAL_REGS'
! which includes both of them.  Otherwise you will get suboptimal code,
! or even internal compiler errors when reload cannot find a register in
! the class computed via `reg_class_subunion'.
  
   You must also specify certain redundant information about the register
  classes: for each class, which classes contain it and which ones are
--- 29783,29817 ----
  patterns.
  
   In general, each register will belong to several classes.  In fact, one
! class must be named 'ALL_REGS' and contain all the registers.  Another
! class must be named 'NO_REGS' and contain no registers.  Often the union
! of two classes will be another class; however, this is not required.
  
!  One of the classes must be named 'GENERAL_REGS'.  There is nothing
! terribly special about the name, but the operand constraint letters 'r'
! and 'g' specify this class.  If 'GENERAL_REGS' is the same as
! 'ALL_REGS', just define it as a macro which expands to 'ALL_REGS'.
  
!  Order the classes so that if class X is contained in class Y then X has
! a lower class number than Y.
  
!  The way classes other than 'GENERAL_REGS' are specified in operand
  constraints is through machine-dependent operand constraint letters.
  You can define such letters to correspond to various classes, then use
  them in operand constraints.
  
   You must define the narrowest register classes for allocatable
! registers, so that each class either has no subclasses, or that for some
! mode, the move cost between registers within the class is cheaper than
! moving a register in the class to or from memory (*note Costs::).
  
   You should define a class for the union of two classes whenever some
  instruction allows both classes.  For example, if an instruction allows
! either a floating point (coprocessor) register or a general register for
! a certain operand, you should define a class 'FLOAT_OR_GENERAL_REGS'
! which includes both of them.  Otherwise you will get suboptimal code, or
! even internal compiler errors when reload cannot find a register in the
! class computed via 'reg_class_subunion'.
  
   You must also specify certain redundant information about the register
  classes: for each class, which classes contain it and which ones are
*************** in their union.
*** 30219,30247 ****
  certain class, all the registers used must belong to that class.
  Therefore, register classes cannot be used to enforce a requirement for
  a register pair to start with an even-numbered register.  The way to
! specify this requirement is with `HARD_REGNO_MODE_OK'.
  
   Register classes used for input-operands of bitwise-and or shift
  instructions have a special requirement: each such class must have, for
  each fixed-point machine mode, a subclass whose registers can transfer
  that mode to or from memory.  For example, on some machines, the
! operations for single-byte values (`QImode') are limited to certain
  registers.  When this is so, each register class that is used in a
  bitwise-and or shift instruction must have a subclass consisting of
  registers from which single-byte values can be loaded or stored.  This
! is so that `PREFERRED_RELOAD_CLASS' can always have a possible value to
  return.
  
   -- Data type: enum reg_class
!      An enumerated type that must be defined with all the register
!      class names as enumerated values.  `NO_REGS' must be first.
!      `ALL_REGS' must be the last register class, followed by one more
!      enumerated value, `LIM_REG_CLASSES', which is not a register class
!      but rather tells how many classes there are.
  
!      Each register class has a number, which is the value of casting
!      the class name to type `int'.  The number serves as an index in
!      many of the tables described below.
  
   -- Macro: N_REG_CLASSES
       The number of distinct register classes, defined as follows:
--- 29822,29850 ----
  certain class, all the registers used must belong to that class.
  Therefore, register classes cannot be used to enforce a requirement for
  a register pair to start with an even-numbered register.  The way to
! specify this requirement is with 'HARD_REGNO_MODE_OK'.
  
   Register classes used for input-operands of bitwise-and or shift
  instructions have a special requirement: each such class must have, for
  each fixed-point machine mode, a subclass whose registers can transfer
  that mode to or from memory.  For example, on some machines, the
! operations for single-byte values ('QImode') are limited to certain
  registers.  When this is so, each register class that is used in a
  bitwise-and or shift instruction must have a subclass consisting of
  registers from which single-byte values can be loaded or stored.  This
! is so that 'PREFERRED_RELOAD_CLASS' can always have a possible value to
  return.
  
   -- Data type: enum reg_class
!      An enumerated type that must be defined with all the register class
!      names as enumerated values.  'NO_REGS' must be first.  'ALL_REGS'
!      must be the last register class, followed by one more enumerated
!      value, 'LIM_REG_CLASSES', which is not a register class but rather
!      tells how many classes there are.
  
!      Each register class has a number, which is the value of casting the
!      class name to type 'int'.  The number serves as an index in many of
!      the tables described below.
  
   -- Macro: N_REG_CLASSES
       The number of distinct register classes, defined as follows:
*************** return.
*** 30257,30272 ****
       An initializer containing the contents of the register classes, as
       integers which are bit masks.  The Nth integer specifies the
       contents of class N.  The way the integer MASK is interpreted is
!      that register R is in the class if `MASK & (1 << R)' is 1.
  
       When the machine has more than 32 registers, an integer does not
       suffice.  Then the integers are replaced by sub-initializers,
!      braced groupings containing several integers.  Each
!      sub-initializer must be suitable as an initializer for the type
!      `HARD_REG_SET' which is defined in `hard-reg-set.h'.  In this
!      situation, the first integer in each sub-initializer corresponds to
!      registers 0 through 31, the second integer to registers 32 through
!      63, and so on.
  
   -- Macro: REGNO_REG_CLASS (REGNO)
       A C expression whose value is a register class containing hard
--- 29860,29874 ----
       An initializer containing the contents of the register classes, as
       integers which are bit masks.  The Nth integer specifies the
       contents of class N.  The way the integer MASK is interpreted is
!      that register R is in the class if 'MASK & (1 << R)' is 1.
  
       When the machine has more than 32 registers, an integer does not
       suffice.  Then the integers are replaced by sub-initializers,
!      braced groupings containing several integers.  Each sub-initializer
!      must be suitable as an initializer for the type 'HARD_REG_SET'
!      which is defined in 'hard-reg-set.h'.  In this situation, the first
!      integer in each sub-initializer corresponds to registers 0 through
!      31, the second integer to registers 32 through 63, and so on.
  
   -- Macro: REGNO_REG_CLASS (REGNO)
       A C expression whose value is a register class containing hard
*************** return.
*** 30280,30289 ****
       address which is the register value plus a displacement.
  
   -- Macro: MODE_BASE_REG_CLASS (MODE)
!      This is a variation of the `BASE_REG_CLASS' macro which allows the
       selection of a base register in a mode dependent manner.  If MODE
       is VOIDmode then it should return the same value as
!      `BASE_REG_CLASS'.
  
   -- Macro: MODE_BASE_REG_REG_CLASS (MODE)
       A C expression whose value is the register class to which a valid
--- 29882,29891 ----
       address which is the register value plus a displacement.
  
   -- Macro: MODE_BASE_REG_CLASS (MODE)
!      This is a variation of the 'BASE_REG_CLASS' macro which allows the
       selection of a base register in a mode dependent manner.  If MODE
       is VOIDmode then it should return the same value as
!      'BASE_REG_CLASS'.
  
   -- Macro: MODE_BASE_REG_REG_CLASS (MODE)
       A C expression whose value is the register class to which a valid
*************** return.
*** 30298,30307 ****
       base register for a memory reference in mode MODE to address space
       ADDRESS_SPACE must belong.  OUTER_CODE and INDEX_CODE define the
       context in which the base register occurs.  OUTER_CODE is the code
!      of the immediately enclosing expression (`MEM' for the top level
!      of an address, `ADDRESS' for something that occurs in an
!      `address_operand').  INDEX_CODE is the code of the corresponding
!      index expression if OUTER_CODE is `PLUS'; `SCRATCH' otherwise.
  
   -- Macro: INDEX_REG_CLASS
       A macro whose definition is the name of the class to which a valid
--- 29900,29909 ----
       base register for a memory reference in mode MODE to address space
       ADDRESS_SPACE must belong.  OUTER_CODE and INDEX_CODE define the
       context in which the base register occurs.  OUTER_CODE is the code
!      of the immediately enclosing expression ('MEM' for the top level of
!      an address, 'ADDRESS' for something that occurs in an
!      'address_operand').  INDEX_CODE is the code of the corresponding
!      index expression if OUTER_CODE is 'PLUS'; 'SCRATCH' otherwise.
  
   -- Macro: INDEX_REG_CLASS
       A macro whose definition is the name of the class to which a valid
*************** return.
*** 30314,30327 ****
       for use as a base register in operand addresses.
  
   -- Macro: REGNO_MODE_OK_FOR_BASE_P (NUM, MODE)
!      A C expression that is just like `REGNO_OK_FOR_BASE_P', except that
       that expression may examine the mode of the memory reference in
       MODE.  You should define this macro if the mode of the memory
       reference affects whether a register may be used as a base
       register.  If you define this macro, the compiler will use it
!      instead of `REGNO_OK_FOR_BASE_P'.  The mode may be `VOIDmode' for
!      addresses that appear outside a `MEM', i.e., as an
!      `address_operand'.
  
   -- Macro: REGNO_MODE_OK_FOR_REG_BASE_P (NUM, MODE)
       A C expression which is nonzero if register number NUM is suitable
--- 29916,29929 ----
       for use as a base register in operand addresses.
  
   -- Macro: REGNO_MODE_OK_FOR_BASE_P (NUM, MODE)
!      A C expression that is just like 'REGNO_OK_FOR_BASE_P', except that
       that expression may examine the mode of the memory reference in
       MODE.  You should define this macro if the mode of the memory
       reference affects whether a register may be used as a base
       register.  If you define this macro, the compiler will use it
!      instead of 'REGNO_OK_FOR_BASE_P'.  The mode may be 'VOIDmode' for
!      addresses that appear outside a 'MEM', i.e., as an
!      'address_operand'.
  
   -- Macro: REGNO_MODE_OK_FOR_REG_BASE_P (NUM, MODE)
       A C expression which is nonzero if register number NUM is suitable
*************** return.
*** 30333,30354 ****
       uses.
  
       Use of this macro is deprecated; please use the more general
!      `REGNO_MODE_CODE_OK_FOR_BASE_P'.
  
   -- Macro: REGNO_MODE_CODE_OK_FOR_BASE_P (NUM, MODE, ADDRESS_SPACE,
            OUTER_CODE, INDEX_CODE)
       A C expression which is nonzero if register number NUM is suitable
       for use as a base register in operand addresses, accessing memory
       in mode MODE in address space ADDRESS_SPACE.  This is similar to
!      `REGNO_MODE_OK_FOR_BASE_P', except that that expression may
!      examine the context in which the register appears in the memory
!      reference.  OUTER_CODE is the code of the immediately enclosing
!      expression (`MEM' if at the top level of the address, `ADDRESS'
!      for something that occurs in an `address_operand').  INDEX_CODE is
!      the code of the corresponding index expression if OUTER_CODE is
!      `PLUS'; `SCRATCH' otherwise.  The mode may be `VOIDmode' for
!      addresses that appear outside a `MEM', i.e., as an
!      `address_operand'.
  
   -- Macro: REGNO_OK_FOR_INDEX_P (NUM)
       A C expression which is nonzero if register number NUM is suitable
--- 29935,29955 ----
       uses.
  
       Use of this macro is deprecated; please use the more general
!      'REGNO_MODE_CODE_OK_FOR_BASE_P'.
  
   -- Macro: REGNO_MODE_CODE_OK_FOR_BASE_P (NUM, MODE, ADDRESS_SPACE,
            OUTER_CODE, INDEX_CODE)
       A C expression which is nonzero if register number NUM is suitable
       for use as a base register in operand addresses, accessing memory
       in mode MODE in address space ADDRESS_SPACE.  This is similar to
!      'REGNO_MODE_OK_FOR_BASE_P', except that that expression may examine
!      the context in which the register appears in the memory reference.
!      OUTER_CODE is the code of the immediately enclosing expression
!      ('MEM' if at the top level of the address, 'ADDRESS' for something
!      that occurs in an 'address_operand').  INDEX_CODE is the code of
!      the corresponding index expression if OUTER_CODE is 'PLUS';
!      'SCRATCH' otherwise.  The mode may be 'VOIDmode' for addresses that
!      appear outside a 'MEM', i.e., as an 'address_operand'.
  
   -- Macro: REGNO_OK_FOR_INDEX_P (NUM)
       A C expression which is nonzero if register number NUM is suitable
*************** return.
*** 30370,30414 ****
       A target hook that places additional preference on the register
       class to use when it is necessary to rename a register in class
       RCLASS to another class, or perhaps NO_REGS, if no preferred
!      register class is found or hook `preferred_rename_class' is not
!      implemented. Sometimes returning a more restrictive class makes
       better code.  For example, on ARM, thumb-2 instructions using
!      `LO_REGS' may be smaller than instructions using `GENERIC_REGS'.
!      By returning `LO_REGS' from `preferred_rename_class', code size
!      can be reduced.
  
   -- Target Hook: reg_class_t TARGET_PREFERRED_RELOAD_CLASS (rtx X,
            reg_class_t RCLASS)
       A target hook that places additional restrictions on the register
       class to use when it is necessary to copy value X into a register
!      in class RCLASS.  The value is a register class; perhaps RCLASS,
!      or perhaps another, smaller class.
  
!      The default version of this hook always returns value of `rclass'
       argument.
  
       Sometimes returning a more restrictive class makes better code.
!      For example, on the 68000, when X is an integer constant that is
!      in range for a `moveq' instruction, the value of this macro is
!      always `DATA_REGS' as long as RCLASS includes the data registers.
!      Requiring a data register guarantees that a `moveq' will be used.
  
!      One case where `TARGET_PREFERRED_RELOAD_CLASS' must not return
!      RCLASS is if X is a legitimate constant which cannot be loaded
!      into some register class.  By returning `NO_REGS' you can force X
!      into a memory location.  For example, rs6000 can load immediate
!      values into general-purpose registers, but does not have an
!      instruction for loading an immediate value into a floating-point
!      register, so `TARGET_PREFERRED_RELOAD_CLASS' returns `NO_REGS' when
!      X is a floating-point constant.  If the constant can't be loaded
!      into any kind of register, code generation will be better if
!      `TARGET_LEGITIMATE_CONSTANT_P' makes the constant illegitimate
!      instead of using `TARGET_PREFERRED_RELOAD_CLASS'.
  
!      If an insn has pseudos in it after register allocation, reload
!      will go through the alternatives and call repeatedly
!      `TARGET_PREFERRED_RELOAD_CLASS' to find the best one.  Returning
!      `NO_REGS', in this case, makes reload add a `!' in front of the
       constraint: the x86 back-end uses this feature to discourage usage
       of 387 registers when math is done in the SSE registers (and vice
       versa).
--- 29971,30015 ----
       A target hook that places additional preference on the register
       class to use when it is necessary to rename a register in class
       RCLASS to another class, or perhaps NO_REGS, if no preferred
!      register class is found or hook 'preferred_rename_class' is not
!      implemented.  Sometimes returning a more restrictive class makes
       better code.  For example, on ARM, thumb-2 instructions using
!      'LO_REGS' may be smaller than instructions using 'GENERIC_REGS'.
!      By returning 'LO_REGS' from 'preferred_rename_class', code size can
!      be reduced.
  
   -- Target Hook: reg_class_t TARGET_PREFERRED_RELOAD_CLASS (rtx X,
            reg_class_t RCLASS)
       A target hook that places additional restrictions on the register
       class to use when it is necessary to copy value X into a register
!      in class RCLASS.  The value is a register class; perhaps RCLASS, or
!      perhaps another, smaller class.
  
!      The default version of this hook always returns value of 'rclass'
       argument.
  
       Sometimes returning a more restrictive class makes better code.
!      For example, on the 68000, when X is an integer constant that is in
!      range for a 'moveq' instruction, the value of this macro is always
!      'DATA_REGS' as long as RCLASS includes the data registers.
!      Requiring a data register guarantees that a 'moveq' will be used.
  
!      One case where 'TARGET_PREFERRED_RELOAD_CLASS' must not return
!      RCLASS is if X is a legitimate constant which cannot be loaded into
!      some register class.  By returning 'NO_REGS' you can force X into a
!      memory location.  For example, rs6000 can load immediate values
!      into general-purpose registers, but does not have an instruction
!      for loading an immediate value into a floating-point register, so
!      'TARGET_PREFERRED_RELOAD_CLASS' returns 'NO_REGS' when X is a
!      floating-point constant.  If the constant can't be loaded into any
!      kind of register, code generation will be better if
!      'TARGET_LEGITIMATE_CONSTANT_P' makes the constant illegitimate
!      instead of using 'TARGET_PREFERRED_RELOAD_CLASS'.
  
!      If an insn has pseudos in it after register allocation, reload will
!      go through the alternatives and call repeatedly
!      'TARGET_PREFERRED_RELOAD_CLASS' to find the best one.  Returning
!      'NO_REGS', in this case, makes reload add a '!' in front of the
       constraint: the x86 back-end uses this feature to discourage usage
       of 387 registers when math is done in the SSE registers (and vice
       versa).
*************** return.
*** 30423,30464 ****
            #define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
  
       Sometimes returning a more restrictive class makes better code.
!      For example, on the 68000, when X is an integer constant that is
!      in range for a `moveq' instruction, the value of this macro is
!      always `DATA_REGS' as long as CLASS includes the data registers.
!      Requiring a data register guarantees that a `moveq' will be used.
  
!      One case where `PREFERRED_RELOAD_CLASS' must not return CLASS is
!      if X is a legitimate constant which cannot be loaded into some
!      register class.  By returning `NO_REGS' you can force X into a
       memory location.  For example, rs6000 can load immediate values
       into general-purpose registers, but does not have an instruction
       for loading an immediate value into a floating-point register, so
!      `PREFERRED_RELOAD_CLASS' returns `NO_REGS' when X is a
       floating-point constant.  If the constant can't be loaded into any
       kind of register, code generation will be better if
!      `TARGET_LEGITIMATE_CONSTANT_P' makes the constant illegitimate
!      instead of using `TARGET_PREFERRED_RELOAD_CLASS'.
  
!      If an insn has pseudos in it after register allocation, reload
!      will go through the alternatives and call repeatedly
!      `PREFERRED_RELOAD_CLASS' to find the best one.  Returning
!      `NO_REGS', in this case, makes reload add a `!' in front of the
       constraint: the x86 back-end uses this feature to discourage usage
       of 387 registers when math is done in the SSE registers (and vice
       versa).
  
   -- Target Hook: reg_class_t TARGET_PREFERRED_OUTPUT_RELOAD_CLASS (rtx
            X, reg_class_t RCLASS)
!      Like `TARGET_PREFERRED_RELOAD_CLASS', but for output reloads
       instead of input reloads.
  
!      The default version of this hook always returns value of `rclass'
       argument.
  
!      You can also use `TARGET_PREFERRED_OUTPUT_RELOAD_CLASS' to
       discourage reload from using some alternatives, like
!      `TARGET_PREFERRED_RELOAD_CLASS'.
  
   -- Macro: LIMIT_RELOAD_CLASS (MODE, CLASS)
       A C expression that places additional restrictions on the register
--- 30024,30065 ----
            #define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
  
       Sometimes returning a more restrictive class makes better code.
!      For example, on the 68000, when X is an integer constant that is in
!      range for a 'moveq' instruction, the value of this macro is always
!      'DATA_REGS' as long as CLASS includes the data registers.
!      Requiring a data register guarantees that a 'moveq' will be used.
  
!      One case where 'PREFERRED_RELOAD_CLASS' must not return CLASS is if
!      X is a legitimate constant which cannot be loaded into some
!      register class.  By returning 'NO_REGS' you can force X into a
       memory location.  For example, rs6000 can load immediate values
       into general-purpose registers, but does not have an instruction
       for loading an immediate value into a floating-point register, so
!      'PREFERRED_RELOAD_CLASS' returns 'NO_REGS' when X is a
       floating-point constant.  If the constant can't be loaded into any
       kind of register, code generation will be better if
!      'TARGET_LEGITIMATE_CONSTANT_P' makes the constant illegitimate
!      instead of using 'TARGET_PREFERRED_RELOAD_CLASS'.
  
!      If an insn has pseudos in it after register allocation, reload will
!      go through the alternatives and call repeatedly
!      'PREFERRED_RELOAD_CLASS' to find the best one.  Returning
!      'NO_REGS', in this case, makes reload add a '!' in front of the
       constraint: the x86 back-end uses this feature to discourage usage
       of 387 registers when math is done in the SSE registers (and vice
       versa).
  
   -- Target Hook: reg_class_t TARGET_PREFERRED_OUTPUT_RELOAD_CLASS (rtx
            X, reg_class_t RCLASS)
!      Like 'TARGET_PREFERRED_RELOAD_CLASS', but for output reloads
       instead of input reloads.
  
!      The default version of this hook always returns value of 'rclass'
       argument.
  
!      You can also use 'TARGET_PREFERRED_OUTPUT_RELOAD_CLASS' to
       discourage reload from using some alternatives, like
!      'TARGET_PREFERRED_RELOAD_CLASS'.
  
   -- Macro: LIMIT_RELOAD_CLASS (MODE, CLASS)
       A C expression that places additional restrictions on the register
*************** return.
*** 30466,30472 ****
       mode MODE in a reload register for which class CLASS would
       ordinarily be used.
  
!      Unlike `PREFERRED_RELOAD_CLASS', this macro should be used when
       there are certain modes that simply can't go in certain reload
       classes.
  
--- 30067,30073 ----
       mode MODE in a reload register for which class CLASS would
       ordinarily be used.
  
!      Unlike 'PREFERRED_RELOAD_CLASS', this macro should be used when
       there are certain modes that simply can't go in certain reload
       classes.
  
*************** return.
*** 30479,30497 ****
   -- Target Hook: reg_class_t TARGET_SECONDARY_RELOAD (bool IN_P, rtx X,
            reg_class_t RELOAD_CLASS, machine_mode RELOAD_MODE,
            secondary_reload_info *SRI)
!      Many machines have some registers that cannot be copied directly
!      to or from memory or even from other types of registers.  An
!      example is the `MQ' register, which on most machines, can only be
!      copied to or from general registers, but not memory.  Below, we
!      shall be using the term 'intermediate register' when a move
!      operation cannot be performed directly, but has to be done by
!      copying the source into the intermediate register first, and then
!      copying the intermediate register to the destination.  An
!      intermediate register always has the same mode as source and
!      destination.  Since it holds the actual value being copied, reload
!      might apply optimizations to re-use an intermediate register and
!      eliding the copy from the source when it can determine that the
!      intermediate register still holds the required value.
  
       Another kind of secondary reload is required on some machines which
       allow copying all registers to and from memory, but require a
--- 30080,30098 ----
   -- Target Hook: reg_class_t TARGET_SECONDARY_RELOAD (bool IN_P, rtx X,
            reg_class_t RELOAD_CLASS, machine_mode RELOAD_MODE,
            secondary_reload_info *SRI)
!      Many machines have some registers that cannot be copied directly to
!      or from memory or even from other types of registers.  An example
!      is the 'MQ' register, which on most machines, can only be copied to
!      or from general registers, but not memory.  Below, we shall be
!      using the term 'intermediate register' when a move operation cannot
!      be performed directly, but has to be done by copying the source
!      into the intermediate register first, and then copying the
!      intermediate register to the destination.  An intermediate register
!      always has the same mode as source and destination.  Since it holds
!      the actual value being copied, reload might apply optimizations to
!      re-use an intermediate register and eliding the copy from the
!      source when it can determine that the intermediate register still
!      holds the required value.
  
       Another kind of secondary reload is required on some machines which
       allow copying all registers to and from memory, but require a
*************** return.
*** 30514,30594 ****
       needs to be copied to rtx X in RELOAD_MODE.
  
       If copying a register of RELOAD_CLASS from/to X requires an
!      intermediate register, the hook `secondary_reload' should return
       the register class required for this intermediate register.  If no
!      intermediate register is required, it should return NO_REGS.  If
       more than one intermediate register is required, describe the one
       that is closest in the copy chain to the reload register.
  
       If scratch registers are needed, you also have to describe how to
       perform the copy from/to the reload register to/from this closest
!      intermediate register.  Or if no intermediate register is
!      required, but still a scratch register is needed, describe the
!      copy  from/to the reload register to/from the reload operand X.
  
!      You do this by setting `sri->icode' to the instruction code of a
       pattern in the md file which performs the move.  Operands 0 and 1
!      are the output and input of this copy, respectively.  Operands
!      from operand 2 onward are for scratch operands.  These scratch
!      operands must have a mode, and a single-register-class output
!      constraint.
  
!      When an intermediate register is used, the `secondary_reload' hook
       will be called again to determine how to copy the intermediate
       register to/from the reload operand X, so your hook must also have
       code to handle the register class of the intermediate operand.
  
!      X might be a pseudo-register or a `subreg' of a pseudo-register,
       which could either be in a hard register or in memory.  Use
!      `true_regnum' to find out; it will return -1 if the pseudo is in
       memory and the hard register number if it is in a register.
  
!      Scratch operands in memory (constraint `"=m"' / `"=&m"') are
       currently not supported.  For the time being, you will have to
!      continue to use `SECONDARY_MEMORY_NEEDED' for that purpose.
  
!      `copy_cost' also uses this target hook to find out how values are
       copied.  If you want it to include some extra cost for the need to
!      allocate (a) scratch register(s), set `sri->extra_cost' to the
       additional cost.  Or if two dependent moves are supposed to have a
       lower cost than the sum of the individual moves due to expected
       fortuitous scheduling and/or special forwarding logic, you can set
!      `sri->extra_cost' to a negative amount.
  
   -- Macro: SECONDARY_RELOAD_CLASS (CLASS, MODE, X)
   -- Macro: SECONDARY_INPUT_RELOAD_CLASS (CLASS, MODE, X)
   -- Macro: SECONDARY_OUTPUT_RELOAD_CLASS (CLASS, MODE, X)
       These macros are obsolete, new ports should use the target hook
!      `TARGET_SECONDARY_RELOAD' instead.
  
       These are obsolete macros, replaced by the
!      `TARGET_SECONDARY_RELOAD' target hook.  Older ports still define
       these macros to indicate to the reload phase that it may need to
       allocate at least one register for a reload in addition to the
       register to contain the data.  Specifically, if copying X to a
       register CLASS in MODE requires an intermediate register, you were
!      supposed to define `SECONDARY_INPUT_RELOAD_CLASS' to return the
       largest register class all of whose registers can be used as
       intermediate registers or scratch registers.
  
       If copying a register CLASS in MODE to X requires an intermediate
!      or scratch register, `SECONDARY_OUTPUT_RELOAD_CLASS' was supposed
       to be defined be defined to return the largest register class
       required.  If the requirements for input and output reloads were
!      the same, the macro `SECONDARY_RELOAD_CLASS' should have been used
       instead of defining both macros identically.
  
!      The values returned by these macros are often `GENERAL_REGS'.
!      Return `NO_REGS' if no spare register is needed; i.e., if X can be
       directly copied to or from a register of CLASS in MODE without
!      requiring a scratch register.  Do not define this macro if it
!      would always return `NO_REGS'.
  
       If a scratch register is required (either with or without an
       intermediate register), you were supposed to define patterns for
!      `reload_inM' or `reload_outM', as required (*note Standard
!      Names::.  These patterns, which were normally implemented with a
!      `define_expand', should be similar to the `movM' patterns, except
       that operand 2 is the scratch register.
  
       These patterns need constraints for the reload register and scratch
--- 30115,30194 ----
       needs to be copied to rtx X in RELOAD_MODE.
  
       If copying a register of RELOAD_CLASS from/to X requires an
!      intermediate register, the hook 'secondary_reload' should return
       the register class required for this intermediate register.  If no
!      intermediate register is required, it should return NO_REGS. If
       more than one intermediate register is required, describe the one
       that is closest in the copy chain to the reload register.
  
       If scratch registers are needed, you also have to describe how to
       perform the copy from/to the reload register to/from this closest
!      intermediate register.  Or if no intermediate register is required,
!      but still a scratch register is needed, describe the copy from/to
!      the reload register to/from the reload operand X.
  
!      You do this by setting 'sri->icode' to the instruction code of a
       pattern in the md file which performs the move.  Operands 0 and 1
!      are the output and input of this copy, respectively.  Operands from
!      operand 2 onward are for scratch operands.  These scratch operands
!      must have a mode, and a single-register-class output constraint.
  
!      When an intermediate register is used, the 'secondary_reload' hook
       will be called again to determine how to copy the intermediate
       register to/from the reload operand X, so your hook must also have
       code to handle the register class of the intermediate operand.
  
!      X might be a pseudo-register or a 'subreg' of a pseudo-register,
       which could either be in a hard register or in memory.  Use
!      'true_regnum' to find out; it will return -1 if the pseudo is in
       memory and the hard register number if it is in a register.
  
!      Scratch operands in memory (constraint '"=m"' / '"=&m"') are
       currently not supported.  For the time being, you will have to
!      continue to use 'SECONDARY_MEMORY_NEEDED' for that purpose.
  
!      'copy_cost' also uses this target hook to find out how values are
       copied.  If you want it to include some extra cost for the need to
!      allocate (a) scratch register(s), set 'sri->extra_cost' to the
       additional cost.  Or if two dependent moves are supposed to have a
       lower cost than the sum of the individual moves due to expected
       fortuitous scheduling and/or special forwarding logic, you can set
!      'sri->extra_cost' to a negative amount.
  
   -- Macro: SECONDARY_RELOAD_CLASS (CLASS, MODE, X)
   -- Macro: SECONDARY_INPUT_RELOAD_CLASS (CLASS, MODE, X)
   -- Macro: SECONDARY_OUTPUT_RELOAD_CLASS (CLASS, MODE, X)
       These macros are obsolete, new ports should use the target hook
!      'TARGET_SECONDARY_RELOAD' instead.
  
       These are obsolete macros, replaced by the
!      'TARGET_SECONDARY_RELOAD' target hook.  Older ports still define
       these macros to indicate to the reload phase that it may need to
       allocate at least one register for a reload in addition to the
       register to contain the data.  Specifically, if copying X to a
       register CLASS in MODE requires an intermediate register, you were
!      supposed to define 'SECONDARY_INPUT_RELOAD_CLASS' to return the
       largest register class all of whose registers can be used as
       intermediate registers or scratch registers.
  
       If copying a register CLASS in MODE to X requires an intermediate
!      or scratch register, 'SECONDARY_OUTPUT_RELOAD_CLASS' was supposed
       to be defined be defined to return the largest register class
       required.  If the requirements for input and output reloads were
!      the same, the macro 'SECONDARY_RELOAD_CLASS' should have been used
       instead of defining both macros identically.
  
!      The values returned by these macros are often 'GENERAL_REGS'.
!      Return 'NO_REGS' if no spare register is needed; i.e., if X can be
       directly copied to or from a register of CLASS in MODE without
!      requiring a scratch register.  Do not define this macro if it would
!      always return 'NO_REGS'.
  
       If a scratch register is required (either with or without an
       intermediate register), you were supposed to define patterns for
!      'reload_inM' or 'reload_outM', as required (*note Standard Names::.
!      These patterns, which were normally implemented with a
!      'define_expand', should be similar to the 'movM' patterns, except
       that operand 2 is the scratch register.
  
       These patterns need constraints for the reload register and scratch
*************** return.
*** 30596,30614 ****
       reload register (whose class is CLASS) can meet the constraint
       given in the pattern, the value returned by these macros is used
       for the class of the scratch register.  Otherwise, two additional
!      reload registers are required.  Their classes are obtained from
!      the constraints in the insn pattern.
  
!      X might be a pseudo-register or a `subreg' of a pseudo-register,
       which could either be in a hard register or in memory.  Use
!      `true_regnum' to find out; it will return -1 if the pseudo is in
       memory and the hard register number if it is in a register.
  
       These macros should not be used in the case where a particular
       class of registers can only be copied to memory and not to another
       class of registers.  In that case, secondary reload registers are
       not needed and would not be helpful.  Instead, a stack location
!      must be used to perform the copy and the `movM' pattern should use
       memory as an intermediate storage.  This case often occurs between
       floating-point and general registers.
  
--- 30196,30214 ----
       reload register (whose class is CLASS) can meet the constraint
       given in the pattern, the value returned by these macros is used
       for the class of the scratch register.  Otherwise, two additional
!      reload registers are required.  Their classes are obtained from the
!      constraints in the insn pattern.
  
!      X might be a pseudo-register or a 'subreg' of a pseudo-register,
       which could either be in a hard register or in memory.  Use
!      'true_regnum' to find out; it will return -1 if the pseudo is in
       memory and the hard register number if it is in a register.
  
       These macros should not be used in the case where a particular
       class of registers can only be copied to memory and not to another
       class of registers.  In that case, secondary reload registers are
       not needed and would not be helpful.  Instead, a stack location
!      must be used to perform the copy and the 'movM' pattern should use
       memory as an intermediate storage.  This case often occurs between
       floating-point and general registers.
  
*************** return.
*** 30623,30642 ****
       Do not define this macro if its value would always be zero.
  
   -- Macro: SECONDARY_MEMORY_NEEDED_RTX (MODE)
!      Normally when `SECONDARY_MEMORY_NEEDED' is defined, the compiler
       allocates a stack slot for a memory location needed for register
       copies.  If this macro is defined, the compiler instead uses the
       memory location defined by this macro.
  
       Do not define this macro if you do not define
!      `SECONDARY_MEMORY_NEEDED'.
  
   -- Macro: SECONDARY_MEMORY_NEEDED_MODE (MODE)
!      When the compiler needs a secondary memory location to copy
!      between two registers of mode MODE, it normally allocates
!      sufficient memory to hold a quantity of `BITS_PER_WORD' bits and
!      performs the store and load operations in a mode that many bits
!      wide and whose class is the same as that of MODE.
  
       This is right thing to do on most machines because it ensures that
       all bits of the register are copied and prevents accesses to the
--- 30223,30242 ----
       Do not define this macro if its value would always be zero.
  
   -- Macro: SECONDARY_MEMORY_NEEDED_RTX (MODE)
!      Normally when 'SECONDARY_MEMORY_NEEDED' is defined, the compiler
       allocates a stack slot for a memory location needed for register
       copies.  If this macro is defined, the compiler instead uses the
       memory location defined by this macro.
  
       Do not define this macro if you do not define
!      'SECONDARY_MEMORY_NEEDED'.
  
   -- Macro: SECONDARY_MEMORY_NEEDED_MODE (MODE)
!      When the compiler needs a secondary memory location to copy between
!      two registers of mode MODE, it normally allocates sufficient memory
!      to hold a quantity of 'BITS_PER_WORD' bits and performs the store
!      and load operations in a mode that many bits wide and whose class
!      is the same as that of MODE.
  
       This is right thing to do on most machines because it ensures that
       all bits of the register are copied and prevents accesses to the
*************** return.
*** 30646,30666 ****
       However, this default behavior is not correct on some machines,
       such as the DEC Alpha, that store short integers in floating-point
       registers differently than in integer registers.  On those
!      machines, the default widening will not work correctly and you
!      must define this macro to suppress that widening in some cases.
!      See the file `alpha.h' for details.
  
       Do not define this macro if you do not define
!      `SECONDARY_MEMORY_NEEDED' or if widening MODE to a mode that is
!      `BITS_PER_WORD' bits wide is correct for your machine.
  
   -- Target Hook: bool TARGET_CLASS_LIKELY_SPILLED_P (reg_class_t RCLASS)
!      A target hook which returns `true' if pseudos that have been
       assigned to registers of class RCLASS would likely be spilled
       because registers of RCLASS are needed for spill registers.
  
!      The default version of this target hook returns `true' if RCLASS
!      has exactly one register and `false' otherwise.  On most machines,
       this default should be used.  For generally register-starved
       machines, such as i386, or machines with right register
       constraints, such as SH, this hook can be used to avoid excessive
--- 30246,30266 ----
       However, this default behavior is not correct on some machines,
       such as the DEC Alpha, that store short integers in floating-point
       registers differently than in integer registers.  On those
!      machines, the default widening will not work correctly and you must
!      define this macro to suppress that widening in some cases.  See the
!      file 'alpha.h' for details.
  
       Do not define this macro if you do not define
!      'SECONDARY_MEMORY_NEEDED' or if widening MODE to a mode that is
!      'BITS_PER_WORD' bits wide is correct for your machine.
  
   -- Target Hook: bool TARGET_CLASS_LIKELY_SPILLED_P (reg_class_t RCLASS)
!      A target hook which returns 'true' if pseudos that have been
       assigned to registers of class RCLASS would likely be spilled
       because registers of RCLASS are needed for spill registers.
  
!      The default version of this target hook returns 'true' if RCLASS
!      has exactly one register and 'false' otherwise.  On most machines,
       this default should be used.  For generally register-starved
       machines, such as i386, or machines with right register
       constraints, such as SH, this hook can be used to avoid excessive
*************** return.
*** 30675,30699 ****
       A target hook returns the maximum number of consecutive registers
       of class RCLASS needed to hold a value of mode MODE.
  
!      This is closely related to the macro `HARD_REGNO_NREGS'.  In fact,
!      the value returned by `TARGET_CLASS_MAX_NREGS (RCLASS, MODE)'
!      target hook should be the maximum value of `HARD_REGNO_NREGS
       (REGNO, MODE)' for all REGNO values in the class RCLASS.
  
       This target hook helps control the handling of multiple-word values
       in the reload pass.
  
!      The default version of this target hook returns the size of MODE
!      in words.
  
   -- Macro: CLASS_MAX_NREGS (CLASS, MODE)
       A C expression for the maximum number of consecutive registers of
       class CLASS needed to hold a value of mode MODE.
  
!      This is closely related to the macro `HARD_REGNO_NREGS'.  In fact,
!      the value of the macro `CLASS_MAX_NREGS (CLASS, MODE)' should be
!      the maximum value of `HARD_REGNO_NREGS (REGNO, MODE)' for all
!      REGNO values in the class CLASS.
  
       This macro helps control the handling of multiple-word values in
       the reload pass.
--- 30275,30299 ----
       A target hook returns the maximum number of consecutive registers
       of class RCLASS needed to hold a value of mode MODE.
  
!      This is closely related to the macro 'HARD_REGNO_NREGS'.  In fact,
!      the value returned by 'TARGET_CLASS_MAX_NREGS (RCLASS, MODE)'
!      target hook should be the maximum value of 'HARD_REGNO_NREGS
       (REGNO, MODE)' for all REGNO values in the class RCLASS.
  
       This target hook helps control the handling of multiple-word values
       in the reload pass.
  
!      The default version of this target hook returns the size of MODE in
!      words.
  
   -- Macro: CLASS_MAX_NREGS (CLASS, MODE)
       A C expression for the maximum number of consecutive registers of
       class CLASS needed to hold a value of mode MODE.
  
!      This is closely related to the macro 'HARD_REGNO_NREGS'.  In fact,
!      the value of the macro 'CLASS_MAX_NREGS (CLASS, MODE)' should be
!      the maximum value of 'HARD_REGNO_NREGS (REGNO, MODE)' for all REGNO
!      values in the class CLASS.
  
       This macro helps control the handling of multiple-word values in
       the reload pass.
*************** return.
*** 30706,30799 ****
       floating-point registers on Alpha extends them to 64 bits.
       Therefore loading a 64-bit object and then storing it as a 32-bit
       object does not store the low-order 32 bits, as would be the case
!      for a normal register.  Therefore, `alpha.h' defines
!      `CANNOT_CHANGE_MODE_CLASS' as below:
  
            #define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
              (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \
               ? reg_classes_intersect_p (FLOAT_REGS, (CLASS)) : 0)
  
       Even if storing from a register in mode TO would be valid, if both
!      FROM and `raw_reg_mode' for CLASS are wider than `word_mode', then
       we must prevent TO narrowing the mode.  This happens when the
       middle-end assumes that it can load or store pieces of an N-word
       pseudo, and that the pseudo will eventually be allocated to N
!      `word_mode' hard registers.  Failure to prevent this kind of mode
!      change will result in the entire `raw_reg_mode' being modified
       instead of the partial value that the middle-end intended.
  
- 
   -- Target Hook: reg_class_t TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS
            (int, REG_CLASS_T, REG_CLASS_T)
       A target hook which can change allocno class for given pseudo from
!       allocno and best class calculated by IRA.
  
       The default version of this target hook always returns given class.
  
   -- Target Hook: bool TARGET_LRA_P (void)
       A target hook which returns true if we use LRA instead of reload
!      pass.    The default version of this target hook returns always
!      false, but new  ports should use LRA.
  
   -- Target Hook: int TARGET_REGISTER_PRIORITY (int)
       A target hook which returns the register priority number to which
!      the  register HARD_REGNO belongs to.  The bigger the number, the
       more preferable the hard register usage (when all other conditions
!      are  the same).  This hook can be used to prefer some hard
!      register over  others in LRA.  For example, some x86-64 register
!      usage needs  additional prefix which makes instructions longer.
!      The hook can  return lower priority number for such registers make
!      them less favorable  and as result making the generated code
!      smaller.    The default version of this target hook returns always
!      zero.
  
   -- Target Hook: bool TARGET_REGISTER_USAGE_LEVELING_P (void)
       A target hook which returns true if we need register usage
       leveling.  That means if a few hard registers are equally good for
!      the  assignment, we choose the least used hard register.  The
!      register  usage leveling may be profitable for some targets.
!      Don't use the  usage leveling for targets with conditional
!      execution or targets  with big register files as it hurts
!      if-conversion and cross-jumping  optimizations.    The default
!      version of this target hook returns always false.
  
   -- Target Hook: bool TARGET_DIFFERENT_ADDR_DISPLACEMENT_P (void)
       A target hook which returns true if an address with the same
!      structure  can have different maximal legitimate displacement.
!      For example, the  displacement can depend on memory mode or on
!      operand combinations in  the insn.    The default version of this
!      target hook returns always false.
  
   -- Target Hook: bool TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P (rtx SUBST)
!      A target hook which returns `true' if SUBST can't substitute
!      safely pseudos with equivalent memory values during register
!      allocation.  The default version of this target hook returns
!      `false'.  On most machines, this default should be used.  For
!      generally machines with non orthogonal register usage for
!      addressing, such as SH, this hook can be used to avoid excessive
!      spilling.
  
!  -- Target Hook: bool TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT (rtx
!           *DISP, rtx *OFFSET, machine_mode MODE)
!      A target hook which returns `true' if *DISP is legitimezed to
!      valid address displacement with subtracting *OFFSET at memory mode
!      MODE.  The default version of this target hook returns `false'.
!      This hook will benefit machines with limited base plus displacement
       addressing.
  
   -- Target Hook: reg_class_t TARGET_SPILL_CLASS (reg_class_t,
            MACHINE_MODE)
       This hook defines a class of registers which could be used for
!      spilling  pseudos of the given mode and class, or `NO_REGS' if
!      only memory  should be used.  Not defining this hook is equivalent
!      to returning  `NO_REGS' for all inputs.
  
   -- Target Hook: machine_mode TARGET_CSTORE_MODE (enum insn_code ICODE)
!      This hook defines the machine mode to use for the boolean result
!      of  conditional store patterns.  The ICODE argument is the
!      instruction code  for the cstore being performed.  Not definiting
!      this hook is the same  as accepting the mode encoded into operand
!      0 of the cstore expander  patterns.
  
  
  File: gccint.info,  Node: Stack and Calling,  Next: Varargs,  Prev: Register Classes,  Up: Target Macros
--- 30306,30396 ----
       floating-point registers on Alpha extends them to 64 bits.
       Therefore loading a 64-bit object and then storing it as a 32-bit
       object does not store the low-order 32 bits, as would be the case
!      for a normal register.  Therefore, 'alpha.h' defines
!      'CANNOT_CHANGE_MODE_CLASS' as below:
  
            #define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
              (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \
               ? reg_classes_intersect_p (FLOAT_REGS, (CLASS)) : 0)
  
       Even if storing from a register in mode TO would be valid, if both
!      FROM and 'raw_reg_mode' for CLASS are wider than 'word_mode', then
       we must prevent TO narrowing the mode.  This happens when the
       middle-end assumes that it can load or store pieces of an N-word
       pseudo, and that the pseudo will eventually be allocated to N
!      'word_mode' hard registers.  Failure to prevent this kind of mode
!      change will result in the entire 'raw_reg_mode' being modified
       instead of the partial value that the middle-end intended.
  
   -- Target Hook: reg_class_t TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS
            (int, REG_CLASS_T, REG_CLASS_T)
       A target hook which can change allocno class for given pseudo from
!      allocno and best class calculated by IRA.
  
       The default version of this target hook always returns given class.
  
   -- Target Hook: bool TARGET_LRA_P (void)
       A target hook which returns true if we use LRA instead of reload
!      pass.  The default version of this target hook returns always
!      false, but new ports should use LRA.
  
   -- Target Hook: int TARGET_REGISTER_PRIORITY (int)
       A target hook which returns the register priority number to which
!      the register HARD_REGNO belongs to.  The bigger the number, the
       more preferable the hard register usage (when all other conditions
!      are the same).  This hook can be used to prefer some hard register
!      over others in LRA. For example, some x86-64 register usage needs
!      additional prefix which makes instructions longer.  The hook can
!      return lower priority number for such registers make them less
!      favorable and as result making the generated code smaller.  The
!      default version of this target hook returns always zero.
  
   -- Target Hook: bool TARGET_REGISTER_USAGE_LEVELING_P (void)
       A target hook which returns true if we need register usage
       leveling.  That means if a few hard registers are equally good for
!      the assignment, we choose the least used hard register.  The
!      register usage leveling may be profitable for some targets.  Don't
!      use the usage leveling for targets with conditional execution or
!      targets with big register files as it hurts if-conversion and
!      cross-jumping optimizations.  The default version of this target
!      hook returns always false.
  
   -- Target Hook: bool TARGET_DIFFERENT_ADDR_DISPLACEMENT_P (void)
       A target hook which returns true if an address with the same
!      structure can have different maximal legitimate displacement.  For
!      example, the displacement can depend on memory mode or on operand
!      combinations in the insn.  The default version of this target hook
!      returns always false.
  
   -- Target Hook: bool TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P (rtx SUBST)
!      A target hook which returns 'true' if SUBST can't substitute safely
!      pseudos with equivalent memory values during register allocation.
!      The default version of this target hook returns 'false'.  On most
!      machines, this default should be used.  For generally machines with
!      non orthogonal register usage for addressing, such as SH, this hook
!      can be used to avoid excessive spilling.
  
!  -- Target Hook: bool TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT (rtx *DISP,
!           rtx *OFFSET, machine_mode MODE)
!      A target hook which returns 'true' if *DISP is legitimezed to valid
!      address displacement with subtracting *OFFSET at memory mode MODE.
!      The default version of this target hook returns 'false'.  This hook
!      will benefit machines with limited base plus displacement
       addressing.
  
   -- Target Hook: reg_class_t TARGET_SPILL_CLASS (reg_class_t,
            MACHINE_MODE)
       This hook defines a class of registers which could be used for
!      spilling pseudos of the given mode and class, or 'NO_REGS' if only
!      memory should be used.  Not defining this hook is equivalent to
!      returning 'NO_REGS' for all inputs.
  
   -- Target Hook: machine_mode TARGET_CSTORE_MODE (enum insn_code ICODE)
!      This hook defines the machine mode to use for the boolean result of
!      conditional store patterns.  The ICODE argument is the instruction
!      code for the cstore being performed.  Not definiting this hook is
!      the same as accepting the mode encoded into operand 0 of the cstore
!      expander patterns.
  
  
  File: gccint.info,  Node: Stack and Calling,  Next: Varargs,  Prev: Register Classes,  Up: Target Macros
*************** File: gccint.info,  Node: Frame Layout,
*** 30830,30851 ****
  Here is the basic stack layout.
  
   -- Macro: STACK_GROWS_DOWNWARD
!      Define this macro to be true if pushing a word onto the stack
!      moves the stack pointer to a smaller address, and false otherwise.
  
   -- Macro: STACK_PUSH_CODE
       This macro defines the operation used when something is pushed on
!      the stack.  In RTL, a push operation will be `(set (mem
       (STACK_PUSH_CODE (reg sp))) ...)'
  
!      The choices are `PRE_DEC', `POST_DEC', `PRE_INC', and `POST_INC'.
       Which of these is correct depends on the stack direction and on
       whether the stack pointer points to the last item on the stack or
       whether it points to the space for the next item on the stack.
  
!      The default is `PRE_DEC' when `STACK_GROWS_DOWNWARD' is true,
!      which is almost always right, and `PRE_INC' otherwise, which is
!      often wrong.
  
   -- Macro: FRAME_GROWS_DOWNWARD
       Define this macro to nonzero value if the addresses of local
--- 30427,30448 ----
  Here is the basic stack layout.
  
   -- Macro: STACK_GROWS_DOWNWARD
!      Define this macro to be true if pushing a word onto the stack moves
!      the stack pointer to a smaller address, and false otherwise.
  
   -- Macro: STACK_PUSH_CODE
       This macro defines the operation used when something is pushed on
!      the stack.  In RTL, a push operation will be '(set (mem
       (STACK_PUSH_CODE (reg sp))) ...)'
  
!      The choices are 'PRE_DEC', 'POST_DEC', 'PRE_INC', and 'POST_INC'.
       Which of these is correct depends on the stack direction and on
       whether the stack pointer points to the last item on the stack or
       whether it points to the space for the next item on the stack.
  
!      The default is 'PRE_DEC' when 'STACK_GROWS_DOWNWARD' is true, which
!      is almost always right, and 'PRE_INC' otherwise, which is often
!      wrong.
  
   -- Macro: FRAME_GROWS_DOWNWARD
       Define this macro to nonzero value if the addresses of local
*************** Here is the basic stack layout.
*** 30859,30886 ****
       Offset from the frame pointer to the first local variable slot to
       be allocated.
  
!      If `FRAME_GROWS_DOWNWARD', find the next slot's offset by
!      subtracting the first slot's length from `STARTING_FRAME_OFFSET'.
       Otherwise, it is found by adding the length of the first slot to
!      the value `STARTING_FRAME_OFFSET'.
  
   -- Macro: STACK_ALIGNMENT_NEEDED
       Define to zero to disable final alignment of the stack during
       reload.  The nonzero default for this macro is suitable for most
       ports.
  
!      On ports where `STARTING_FRAME_OFFSET' is nonzero or where there
!      is a register save block following the local block that doesn't
!      require alignment to `STACK_BOUNDARY', it may be beneficial to
       disable stack alignment and do it in the backend.
  
   -- Macro: STACK_POINTER_OFFSET
       Offset from the stack pointer register to the first location at
!      which outgoing arguments are placed.  If not specified, the
!      default value of zero is used.  This is the proper value for most
!      machines.
  
!      If `ARGS_GROW_DOWNWARD', this is the offset to the location above
       the first location at which outgoing arguments are placed.
  
   -- Macro: FIRST_PARM_OFFSET (FUNDECL)
--- 30456,30482 ----
       Offset from the frame pointer to the first local variable slot to
       be allocated.
  
!      If 'FRAME_GROWS_DOWNWARD', find the next slot's offset by
!      subtracting the first slot's length from 'STARTING_FRAME_OFFSET'.
       Otherwise, it is found by adding the length of the first slot to
!      the value 'STARTING_FRAME_OFFSET'.
  
   -- Macro: STACK_ALIGNMENT_NEEDED
       Define to zero to disable final alignment of the stack during
       reload.  The nonzero default for this macro is suitable for most
       ports.
  
!      On ports where 'STARTING_FRAME_OFFSET' is nonzero or where there is
!      a register save block following the local block that doesn't
!      require alignment to 'STACK_BOUNDARY', it may be beneficial to
       disable stack alignment and do it in the backend.
  
   -- Macro: STACK_POINTER_OFFSET
       Offset from the stack pointer register to the first location at
!      which outgoing arguments are placed.  If not specified, the default
!      value of zero is used.  This is the proper value for most machines.
  
!      If 'ARGS_GROW_DOWNWARD', this is the offset to the location above
       the first location at which outgoing arguments are placed.
  
   -- Macro: FIRST_PARM_OFFSET (FUNDECL)
*************** Here is the basic stack layout.
*** 30888,30912 ****
       address.  On some machines it may depend on the data type of the
       function.
  
!      If `ARGS_GROW_DOWNWARD', this is the offset to the location above
       the first argument's address.
  
   -- Macro: STACK_DYNAMIC_OFFSET (FUNDECL)
       Offset from the stack pointer register to an item dynamically
!      allocated on the stack, e.g., by `alloca'.
  
!      The default value for this macro is `STACK_POINTER_OFFSET' plus the
       length of the outgoing arguments.  The default is correct for most
!      machines.  See `function.c' for details.
  
   -- Macro: INITIAL_FRAME_ADDRESS_RTX
       A C expression whose value is RTL representing the address of the
!      initial stack frame. This address is passed to `RETURN_ADDR_RTX'
!      and `DYNAMIC_CHAIN_ADDRESS'.  If you don't define this macro, a
       reasonable default value will be used.  Define this macro in order
       to make frame pointer elimination work in the presence of
!      `__builtin_frame_address (count)' and `__builtin_return_address
!      (count)' for `count' not equal to zero.
  
   -- Macro: DYNAMIC_CHAIN_ADDRESS (FRAMEADDR)
       A C expression whose value is RTL representing the address in a
--- 30484,30508 ----
       address.  On some machines it may depend on the data type of the
       function.
  
!      If 'ARGS_GROW_DOWNWARD', this is the offset to the location above
       the first argument's address.
  
   -- Macro: STACK_DYNAMIC_OFFSET (FUNDECL)
       Offset from the stack pointer register to an item dynamically
!      allocated on the stack, e.g., by 'alloca'.
  
!      The default value for this macro is 'STACK_POINTER_OFFSET' plus the
       length of the outgoing arguments.  The default is correct for most
!      machines.  See 'function.c' for details.
  
   -- Macro: INITIAL_FRAME_ADDRESS_RTX
       A C expression whose value is RTL representing the address of the
!      initial stack frame.  This address is passed to 'RETURN_ADDR_RTX'
!      and 'DYNAMIC_CHAIN_ADDRESS'.  If you don't define this macro, a
       reasonable default value will be used.  Define this macro in order
       to make frame pointer elimination work in the presence of
!      '__builtin_frame_address (count)' and '__builtin_return_address
!      (count)' for 'count' not equal to zero.
  
   -- Macro: DYNAMIC_CHAIN_ADDRESS (FRAMEADDR)
       A C expression whose value is RTL representing the address in a
*************** Here is the basic stack layout.
*** 30919,30936 ****
       of the stack word that points to the previous frame.
  
   -- Macro: SETUP_FRAME_ADDRESSES
!      A C expression that produces the machine-specific code to setup
!      the stack so that arbitrary frames can be accessed.  For example,
!      on the SPARC, we must flush all of the register windows to the
!      stack before we can access arbitrary stack frames.  You will
!      seldom need to define this macro.  The default is to do nothing.
  
   -- Target Hook: rtx TARGET_BUILTIN_SETJMP_FRAME_VALUE (void)
       This target hook should return an rtx that is used to store the
!      address of the current frame into the built in `setjmp' buffer.
!      The default value, `virtual_stack_vars_rtx', is correct for most
       machines.  One reason you may need to define this target hook is if
!      `hard_frame_pointer_rtx' is the appropriate value on your machine.
  
   -- Macro: FRAME_ADDR_RTX (FRAMEADDR)
       A C expression whose value is RTL representing the value of the
--- 30515,30532 ----
       of the stack word that points to the previous frame.
  
   -- Macro: SETUP_FRAME_ADDRESSES
!      A C expression that produces the machine-specific code to setup the
!      stack so that arbitrary frames can be accessed.  For example, on
!      the SPARC, we must flush all of the register windows to the stack
!      before we can access arbitrary stack frames.  You will seldom need
!      to define this macro.  The default is to do nothing.
  
   -- Target Hook: rtx TARGET_BUILTIN_SETJMP_FRAME_VALUE (void)
       This target hook should return an rtx that is used to store the
!      address of the current frame into the built in 'setjmp' buffer.
!      The default value, 'virtual_stack_vars_rtx', is correct for most
       machines.  One reason you may need to define this target hook is if
!      'hard_frame_pointer_rtx' is the appropriate value on your machine.
  
   -- Macro: FRAME_ADDR_RTX (FRAMEADDR)
       A C expression whose value is RTL representing the value of the
*************** Here is the basic stack layout.
*** 30942,30954 ****
  
   -- Macro: RETURN_ADDR_RTX (COUNT, FRAMEADDR)
       A C expression whose value is RTL representing the value of the
!      return address for the frame COUNT steps up from the current
!      frame, after the prologue.  FRAMEADDR is the frame pointer of the
!      COUNT frame, or the frame pointer of the COUNT - 1 frame if
!      `RETURN_ADDR_IN_PREVIOUS_FRAME' is nonzero.
  
       The value of the expression must always be the correct address when
!      COUNT is zero, but may be `NULL_RTX' if there is no way to
       determine the return address of other frames.
  
   -- Macro: RETURN_ADDR_IN_PREVIOUS_FRAME
--- 30538,30550 ----
  
   -- Macro: RETURN_ADDR_RTX (COUNT, FRAMEADDR)
       A C expression whose value is RTL representing the value of the
!      return address for the frame COUNT steps up from the current frame,
!      after the prologue.  FRAMEADDR is the frame pointer of the COUNT
!      frame, or the frame pointer of the COUNT - 1 frame if
!      'RETURN_ADDR_IN_PREVIOUS_FRAME' is nonzero.
  
       The value of the expression must always be the correct address when
!      COUNT is zero, but may be 'NULL_RTX' if there is no way to
       determine the return address of other frames.
  
   -- Macro: RETURN_ADDR_IN_PREVIOUS_FRAME
*************** Here is the basic stack layout.
*** 30960,30982 ****
   -- Macro: INCOMING_RETURN_ADDR_RTX
       A C expression whose value is RTL representing the location of the
       incoming return address at the beginning of any function, before
!      the prologue.  This RTL is either a `REG', indicating that the
!      return value is saved in `REG', or a `MEM' representing a location
       in the stack.
  
       You only need to define this macro if you want to support call
       frame debugging information like that provided by DWARF 2.
  
!      If this RTL is a `REG', you should also define
!      `DWARF_FRAME_RETURN_COLUMN' to `DWARF_FRAME_REGNUM (REGNO)'.
  
   -- Macro: DWARF_ALT_FRAME_RETURN_COLUMN
       A C expression whose value is an integer giving a DWARF 2 column
       number that may be used as an alternative return column.  The
       column must not correspond to any gcc hard register (that is, it
!      must not be in the range of `DWARF_FRAME_REGNUM').
  
!      This macro can be useful if `DWARF_FRAME_RETURN_COLUMN' is set to a
       general register, but an alternative column needs to be used for
       signal frames.  Some targets have also used different frame return
       columns over time.
--- 30556,30578 ----
   -- Macro: INCOMING_RETURN_ADDR_RTX
       A C expression whose value is RTL representing the location of the
       incoming return address at the beginning of any function, before
!      the prologue.  This RTL is either a 'REG', indicating that the
!      return value is saved in 'REG', or a 'MEM' representing a location
       in the stack.
  
       You only need to define this macro if you want to support call
       frame debugging information like that provided by DWARF 2.
  
!      If this RTL is a 'REG', you should also define
!      'DWARF_FRAME_RETURN_COLUMN' to 'DWARF_FRAME_REGNUM (REGNO)'.
  
   -- Macro: DWARF_ALT_FRAME_RETURN_COLUMN
       A C expression whose value is an integer giving a DWARF 2 column
       number that may be used as an alternative return column.  The
       column must not correspond to any gcc hard register (that is, it
!      must not be in the range of 'DWARF_FRAME_REGNUM').
  
!      This macro can be useful if 'DWARF_FRAME_RETURN_COLUMN' is set to a
       general register, but an alternative column needs to be used for
       signal frames.  Some targets have also used different frame return
       columns over time.
*************** Here is the basic stack layout.
*** 30986,30993 ****
       number that is considered to always have the value zero.  This
       should only be defined if the target has an architected zero
       register, and someone decided it was a good idea to use that
!      register number to terminate the stack backtrace.  New ports
!      should avoid this.
  
   -- Target Hook: void TARGET_DWARF_HANDLE_FRAME_UNSPEC (const char
            *LABEL, rtx PATTERN, int INDEX)
--- 30582,30589 ----
       number that is considered to always have the value zero.  This
       should only be defined if the target has an architected zero
       register, and someone decided it was a good idea to use that
!      register number to terminate the stack backtrace.  New ports should
!      avoid this.
  
   -- Target Hook: void TARGET_DWARF_HANDLE_FRAME_UNSPEC (const char
            *LABEL, rtx PATTERN, int INDEX)
*************** Here is the basic stack layout.
*** 30999,31005 ****
            (set (reg) (unspec_volatile [...] UNSPECV_INDEX)).
       to let the backend emit the call frame instructions.  LABEL is the
       CFI label attached to the insn, PATTERN is the pattern of the insn
!      and INDEX is `UNSPEC_INDEX' or `UNSPECV_INDEX'.
  
   -- Macro: INCOMING_FRAME_SP_OFFSET
       A C expression whose value is an integer giving the offset, in
--- 30595,30601 ----
            (set (reg) (unspec_volatile [...] UNSPECV_INDEX)).
       to let the backend emit the call frame instructions.  LABEL is the
       CFI label attached to the insn, PATTERN is the pattern of the insn
!      and INDEX is 'UNSPEC_INDEX' or 'UNSPECV_INDEX'.
  
   -- Macro: INCOMING_FRAME_SP_OFFSET
       A C expression whose value is an integer giving the offset, in
*************** Here is the basic stack layout.
*** 31016,31055 ****
       A C expression whose value is an integer giving the offset, in
       bytes, from the argument pointer to the canonical frame address
       (cfa).  The final value should coincide with that calculated by
!      `INCOMING_FRAME_SP_OFFSET'.  Which is unfortunately not usable
       during virtual register instantiation.
  
!      The default value for this macro is `FIRST_PARM_OFFSET (fundecl) +
       crtl->args.pretend_args_size', which is correct for most machines;
       in general, the arguments are found immediately before the stack
       frame.  Note that this is not the case on some targets that save
!      registers into the caller's frame, such as SPARC and rs6000, and
!      so such targets need to define this macro.
  
!      You only need to define this macro if the default is incorrect,
!      and you want to support call frame debugging information like that
       provided by DWARF 2.
  
   -- Macro: FRAME_POINTER_CFA_OFFSET (FUNDECL)
       If defined, a C expression whose value is an integer giving the
       offset in bytes from the frame pointer to the canonical frame
       address (cfa).  The final value should coincide with that
!      calculated by `INCOMING_FRAME_SP_OFFSET'.
  
       Normally the CFA is calculated as an offset from the argument
!      pointer, via `ARG_POINTER_CFA_OFFSET', but if the argument pointer
       is variable due to the ABI, this may not be possible.  If this
       macro is defined, it implies that the virtual register
       instantiation should be based on the frame pointer instead of the
!      argument pointer.  Only one of `FRAME_POINTER_CFA_OFFSET' and
!      `ARG_POINTER_CFA_OFFSET' should be defined.
  
   -- Macro: CFA_FRAME_BASE_OFFSET (FUNDECL)
       If defined, a C expression whose value is an integer giving the
!      offset in bytes from the canonical frame address (cfa) to the
!      frame base used in DWARF 2 debug information.  The default is
!      zero.  A different value may reduce the size of debug information
!      on some ports.
  
  
  File: gccint.info,  Node: Exception Handling,  Next: Stack Checking,  Prev: Frame Layout,  Up: Stack and Calling
--- 30612,30651 ----
       A C expression whose value is an integer giving the offset, in
       bytes, from the argument pointer to the canonical frame address
       (cfa).  The final value should coincide with that calculated by
!      'INCOMING_FRAME_SP_OFFSET'.  Which is unfortunately not usable
       during virtual register instantiation.
  
!      The default value for this macro is 'FIRST_PARM_OFFSET (fundecl) +
       crtl->args.pretend_args_size', which is correct for most machines;
       in general, the arguments are found immediately before the stack
       frame.  Note that this is not the case on some targets that save
!      registers into the caller's frame, such as SPARC and rs6000, and so
!      such targets need to define this macro.
  
!      You only need to define this macro if the default is incorrect, and
!      you want to support call frame debugging information like that
       provided by DWARF 2.
  
   -- Macro: FRAME_POINTER_CFA_OFFSET (FUNDECL)
       If defined, a C expression whose value is an integer giving the
       offset in bytes from the frame pointer to the canonical frame
       address (cfa).  The final value should coincide with that
!      calculated by 'INCOMING_FRAME_SP_OFFSET'.
  
       Normally the CFA is calculated as an offset from the argument
!      pointer, via 'ARG_POINTER_CFA_OFFSET', but if the argument pointer
       is variable due to the ABI, this may not be possible.  If this
       macro is defined, it implies that the virtual register
       instantiation should be based on the frame pointer instead of the
!      argument pointer.  Only one of 'FRAME_POINTER_CFA_OFFSET' and
!      'ARG_POINTER_CFA_OFFSET' should be defined.
  
   -- Macro: CFA_FRAME_BASE_OFFSET (FUNDECL)
       If defined, a C expression whose value is an integer giving the
!      offset in bytes from the canonical frame address (cfa) to the frame
!      base used in DWARF 2 debug information.  The default is zero.  A
!      different value may reduce the size of debug information on some
!      ports.
  
  
  File: gccint.info,  Node: Exception Handling,  Next: Stack Checking,  Prev: Frame Layout,  Up: Stack and Calling
*************** File: gccint.info,  Node: Exception Hand
*** 31058,31065 ****
  ---------------------------------
  
   -- Macro: EH_RETURN_DATA_REGNO (N)
!      A C expression whose value is the Nth register number used for
!      data by exception handlers, or `INVALID_REGNUM' if fewer than N
       registers are usable.
  
       The exception handling library routines communicate with the
--- 30654,30661 ----
  ---------------------------------
  
   -- Macro: EH_RETURN_DATA_REGNO (N)
!      A C expression whose value is the Nth register number used for data
!      by exception handlers, or 'INVALID_REGNUM' if fewer than N
       registers are usable.
  
       The exception handling library routines communicate with the
*************** File: gccint.info,  Node: Exception Hand
*** 31099,31120 ****
       normal return address is stored.  For targets that return by
       popping an address off the stack, this might be a memory address
       just below the _target_ call frame rather than inside the current
!      call frame.  If defined, `EH_RETURN_STACKADJ_RTX' will have already
       been assigned, so it may be used to calculate the location of the
       target call frame.
  
       Some targets have more complex requirements than storing to an
       address calculable during initial code generation.  In that case
!      the `eh_return' instruction pattern should be used instead.
  
       If you want to support call frame exception handling, you must
!      define either this macro or the `eh_return' instruction pattern.
  
   -- Macro: RETURN_ADDR_OFFSET
       If defined, an integer-valued C expression for which rtl will be
       generated to add it to the exception handler address before it is
!      searched in the exception handling tables, and to subtract it
!      again from the address before using it to return to the exception
       handler.
  
   -- Macro: ASM_PREFERRED_EH_DATA_FORMAT (CODE, GLOBAL)
--- 30695,30716 ----
       normal return address is stored.  For targets that return by
       popping an address off the stack, this might be a memory address
       just below the _target_ call frame rather than inside the current
!      call frame.  If defined, 'EH_RETURN_STACKADJ_RTX' will have already
       been assigned, so it may be used to calculate the location of the
       target call frame.
  
       Some targets have more complex requirements than storing to an
       address calculable during initial code generation.  In that case
!      the 'eh_return' instruction pattern should be used instead.
  
       If you want to support call frame exception handling, you must
!      define either this macro or the 'eh_return' instruction pattern.
  
   -- Macro: RETURN_ADDR_OFFSET
       If defined, an integer-valued C expression for which rtl will be
       generated to add it to the exception handler address before it is
!      searched in the exception handling tables, and to subtract it again
!      from the address before using it to return to the exception
       handler.
  
   -- Macro: ASM_PREFERRED_EH_DATA_FORMAT (CODE, GLOBAL)
*************** File: gccint.info,  Node: Exception Hand
*** 31126,31132 ****
       CODE is 0 for data, 1 for code labels, 2 for function pointers.
       GLOBAL is true if the symbol may be affected by dynamic
       relocations.  The macro should return a combination of the
!      `DW_EH_PE_*' defines as found in `dwarf2.h'.
  
       If this macro is not defined, pointers will not be encoded but
       represented directly.
--- 30722,30728 ----
       CODE is 0 for data, 1 for code labels, 2 for function pointers.
       GLOBAL is true if the symbol may be affected by dynamic
       relocations.  The macro should return a combination of the
!      'DW_EH_PE_*' defines as found in 'dwarf2.h'.
  
       If this macro is not defined, pointers will not be encoded but
       represented directly.
*************** File: gccint.info,  Node: Exception Hand
*** 31135,31147 ****
            ADDR, DONE)
       This macro allows the target to emit whatever special magic is
       required to represent the encoding chosen by
!      `ASM_PREFERRED_EH_DATA_FORMAT'.  Generic code takes care of
       pc-relative and indirect encodings; this must be defined if the
       target uses text-relative or data-relative encodings.
  
       This is a C statement that branches to DONE if the format was
       handled.  ENCODING is the format chosen, SIZE is the number of
!      bytes that the format occupies, ADDR is the `SYMBOL_REF' to be
       emitted.
  
   -- Macro: MD_FALLBACK_FRAME_STATE_FOR (CONTEXT, FS)
--- 30731,30743 ----
            ADDR, DONE)
       This macro allows the target to emit whatever special magic is
       required to represent the encoding chosen by
!      'ASM_PREFERRED_EH_DATA_FORMAT'.  Generic code takes care of
       pc-relative and indirect encodings; this must be defined if the
       target uses text-relative or data-relative encodings.
  
       This is a C statement that branches to DONE if the format was
       handled.  ENCODING is the format chosen, SIZE is the number of
!      bytes that the format occupies, ADDR is the 'SYMBOL_REF' to be
       emitted.
  
   -- Macro: MD_FALLBACK_FRAME_STATE_FOR (CONTEXT, FS)
*************** File: gccint.info,  Node: Exception Hand
*** 31150,31185 ****
       unwind data available.  The most common reason to implement this
       macro is to unwind through signal frames.
  
!      This macro is called from `uw_frame_state_for' in `unwind-dw2.c',
!      `unwind-dw2-xtensa.c' and `unwind-ia64.c'.  CONTEXT is an
!      `_Unwind_Context'; FS is an `_Unwind_FrameState'.  Examine
!      `context->ra' for the address of the code being executed and
!      `context->cfa' for the stack pointer value.  If the frame can be
       decoded, the register save addresses should be updated in FS and
!      the macro should evaluate to `_URC_NO_REASON'.  If the frame
!      cannot be decoded, the macro should evaluate to
!      `_URC_END_OF_STACK'.
  
       For proper signal handling in Java this macro is accompanied by
!      `MAKE_THROW_FRAME', defined in `libjava/include/*-signal.h'
       headers.
  
   -- Macro: MD_HANDLE_UNWABI (CONTEXT, FS)
       This macro allows the target to add operating system specific code
!      to the call-frame unwinder to handle the IA-64 `.unwabi' unwinding
       directive, usually used for signal or interrupt frames.
  
!      This macro is called from `uw_update_context' in libgcc's
!      `unwind-ia64.c'.  CONTEXT is an `_Unwind_Context'; FS is an
!      `_Unwind_FrameState'.  Examine `fs->unwabi' for the abi and
!      context in the `.unwabi' directive.  If the `.unwabi' directive
!      can be handled, the register save addresses should be updated in
!      FS.
  
   -- Macro: TARGET_USES_WEAK_UNWIND_INFO
       A C expression that evaluates to true if the target requires unwind
!      info to be given comdat linkage.  Define it to be `1' if comdat
!      linkage is necessary.  The default is `0'.
  
  
  File: gccint.info,  Node: Stack Checking,  Next: Frame Registers,  Prev: Exception Handling,  Up: Stack and Calling
--- 30746,30779 ----
       unwind data available.  The most common reason to implement this
       macro is to unwind through signal frames.
  
!      This macro is called from 'uw_frame_state_for' in 'unwind-dw2.c',
!      'unwind-dw2-xtensa.c' and 'unwind-ia64.c'.  CONTEXT is an
!      '_Unwind_Context'; FS is an '_Unwind_FrameState'.  Examine
!      'context->ra' for the address of the code being executed and
!      'context->cfa' for the stack pointer value.  If the frame can be
       decoded, the register save addresses should be updated in FS and
!      the macro should evaluate to '_URC_NO_REASON'.  If the frame cannot
!      be decoded, the macro should evaluate to '_URC_END_OF_STACK'.
  
       For proper signal handling in Java this macro is accompanied by
!      'MAKE_THROW_FRAME', defined in 'libjava/include/*-signal.h'
       headers.
  
   -- Macro: MD_HANDLE_UNWABI (CONTEXT, FS)
       This macro allows the target to add operating system specific code
!      to the call-frame unwinder to handle the IA-64 '.unwabi' unwinding
       directive, usually used for signal or interrupt frames.
  
!      This macro is called from 'uw_update_context' in libgcc's
!      'unwind-ia64.c'.  CONTEXT is an '_Unwind_Context'; FS is an
!      '_Unwind_FrameState'.  Examine 'fs->unwabi' for the abi and context
!      in the '.unwabi' directive.  If the '.unwabi' directive can be
!      handled, the register save addresses should be updated in FS.
  
   -- Macro: TARGET_USES_WEAK_UNWIND_INFO
       A C expression that evaluates to true if the target requires unwind
!      info to be given comdat linkage.  Define it to be '1' if comdat
!      linkage is necessary.  The default is '0'.
  
  
  File: gccint.info,  Node: Stack Checking,  Next: Frame Registers,  Prev: Exception Handling,  Up: Stack and Calling
*************** File: gccint.info,  Node: Stack Checking
*** 31188,31207 ****
  --------------------------------------------
  
  GCC will check that stack references are within the boundaries of the
! stack, if the option `-fstack-check' is specified, in one of three ways:
  
!   1. If the value of the `STACK_CHECK_BUILTIN' macro is nonzero, GCC
       will assume that you have arranged for full stack checking to be
       done at appropriate places in the configuration files.  GCC will
       not do other special processing.
  
!   2. If `STACK_CHECK_BUILTIN' is zero and the value of the
!      `STACK_CHECK_STATIC_BUILTIN' macro is nonzero, GCC will assume
!      that you have arranged for static stack checking (checking of the
!      static stack frame of functions) to be done at appropriate places
!      in the configuration files.  GCC will only emit code to do dynamic
!      stack checking (checking on dynamic stack allocations) using the
!      third approach below.
  
    3. If neither of the above are true, GCC will generate code to
       periodically "probe" the stack pointer using the values of the
--- 30782,30801 ----
  --------------------------------------------
  
  GCC will check that stack references are within the boundaries of the
! stack, if the option '-fstack-check' is specified, in one of three ways:
  
!   1. If the value of the 'STACK_CHECK_BUILTIN' macro is nonzero, GCC
       will assume that you have arranged for full stack checking to be
       done at appropriate places in the configuration files.  GCC will
       not do other special processing.
  
!   2. If 'STACK_CHECK_BUILTIN' is zero and the value of the
!      'STACK_CHECK_STATIC_BUILTIN' macro is nonzero, GCC will assume that
!      you have arranged for static stack checking (checking of the static
!      stack frame of functions) to be done at appropriate places in the
!      configuration files.  GCC will only emit code to do dynamic stack
!      checking (checking on dynamic stack allocations) using the third
!      approach below.
  
    3. If neither of the above are true, GCC will generate code to
       periodically "probe" the stack pointer using the values of the
*************** stack, if the option `-fstack-check' is
*** 31209,31223 ****
  
   If neither STACK_CHECK_BUILTIN nor STACK_CHECK_STATIC_BUILTIN is
  defined, GCC will change its allocation strategy for large objects if
! the option `-fstack-check' is specified: they will always be allocated
! dynamically if their size exceeds `STACK_CHECK_MAX_VAR_SIZE' bytes.
  
   -- Macro: STACK_CHECK_BUILTIN
       A nonzero value if stack checking is done by the configuration
       files in a machine-dependent manner.  You should define this macro
       if stack checking is required by the ABI of your machine or if you
!      would like to do stack checking in some more efficient way than
!      the generic approach.  The default value of this macro is zero.
  
   -- Macro: STACK_CHECK_STATIC_BUILTIN
       A nonzero value if static stack checking is done by the
--- 30803,30817 ----
  
   If neither STACK_CHECK_BUILTIN nor STACK_CHECK_STATIC_BUILTIN is
  defined, GCC will change its allocation strategy for large objects if
! the option '-fstack-check' is specified: they will always be allocated
! dynamically if their size exceeds 'STACK_CHECK_MAX_VAR_SIZE' bytes.
  
   -- Macro: STACK_CHECK_BUILTIN
       A nonzero value if stack checking is done by the configuration
       files in a machine-dependent manner.  You should define this macro
       if stack checking is required by the ABI of your machine or if you
!      would like to do stack checking in some more efficient way than the
!      generic approach.  The default value of this macro is zero.
  
   -- Macro: STACK_CHECK_STATIC_BUILTIN
       A nonzero value if static stack checking is done by the
*************** dynamically if their size exceeds `STACK
*** 31227,31252 ****
       value of this macro is zero.
  
   -- Macro: STACK_CHECK_PROBE_INTERVAL_EXP
!      An integer specifying the interval at which GCC must generate
!      stack probe instructions, defined as 2 raised to this integer.
!      You will normally define this macro so that the interval be no
!      larger than the size of the "guard pages" at the end of a stack
!      area.  The default value of 12 (4096-byte interval) is suitable
!      for most systems.
  
   -- Macro: STACK_CHECK_MOVING_SP
       An integer which is nonzero if GCC should move the stack pointer
       page by page when doing probes.  This can be necessary on systems
       where the stack pointer contains the bottom address of the memory
       area accessible to the executing thread at any point in time.  In
!      this situation an alternate signal stack is required in order to
!      be able to recover from a stack overflow.  The default value of
!      this macro is zero.
  
   -- Macro: STACK_CHECK_PROTECT
       The number of bytes of stack needed to recover from a stack
       overflow, for languages where such a recovery is supported.  The
!      default value of 4KB/8KB with the `setjmp'/`longjmp'-based
       exception handling mechanism and 8KB/12KB with other exception
       handling mechanisms should be adequate for most architectures and
       operating systems.
--- 30821,30846 ----
       value of this macro is zero.
  
   -- Macro: STACK_CHECK_PROBE_INTERVAL_EXP
!      An integer specifying the interval at which GCC must generate stack
!      probe instructions, defined as 2 raised to this integer.  You will
!      normally define this macro so that the interval be no larger than
!      the size of the "guard pages" at the end of a stack area.  The
!      default value of 12 (4096-byte interval) is suitable for most
!      systems.
  
   -- Macro: STACK_CHECK_MOVING_SP
       An integer which is nonzero if GCC should move the stack pointer
       page by page when doing probes.  This can be necessary on systems
       where the stack pointer contains the bottom address of the memory
       area accessible to the executing thread at any point in time.  In
!      this situation an alternate signal stack is required in order to be
!      able to recover from a stack overflow.  The default value of this
!      macro is zero.
  
   -- Macro: STACK_CHECK_PROTECT
       The number of bytes of stack needed to recover from a stack
       overflow, for languages where such a recovery is supported.  The
!      default value of 4KB/8KB with the 'setjmp'/'longjmp'-based
       exception handling mechanism and 8KB/12KB with other exception
       handling mechanisms should be adequate for most architectures and
       operating systems.
*************** in the opposite case.
*** 31258,31268 ****
   -- Macro: STACK_CHECK_MAX_FRAME_SIZE
       The maximum size of a stack frame, in bytes.  GCC will generate
       probe instructions in non-leaf functions to ensure at least this
!      many bytes of stack are available.  If a stack frame is larger
!      than this size, stack checking will not be reliable and GCC will
!      issue a warning.  The default is chosen so that GCC only generates
!      one instruction on most systems.  You should normally not change
!      the default value of this macro.
  
   -- Macro: STACK_CHECK_FIXED_FRAME_SIZE
       GCC uses this value to generate the above warning message.  It
--- 30852,30862 ----
   -- Macro: STACK_CHECK_MAX_FRAME_SIZE
       The maximum size of a stack frame, in bytes.  GCC will generate
       probe instructions in non-leaf functions to ensure at least this
!      many bytes of stack are available.  If a stack frame is larger than
!      this size, stack checking will not be reliable and GCC will issue a
!      warning.  The default is chosen so that GCC only generates one
!      instruction on most systems.  You should normally not change the
!      default value of this macro.
  
   -- Macro: STACK_CHECK_FIXED_FRAME_SIZE
       GCC uses this value to generate the above warning message.  It
*************** in the opposite case.
*** 31274,31280 ****
   -- Macro: STACK_CHECK_MAX_VAR_SIZE
       The maximum size, in bytes, of an object that GCC will place in the
       fixed area of the stack frame when the user specifies
!      `-fstack-check'.  GCC computed the default from the values of the
       above macros and you will normally not need to override that
       default.
  
--- 30868,30874 ----
   -- Macro: STACK_CHECK_MAX_VAR_SIZE
       The maximum size, in bytes, of an object that GCC will place in the
       fixed area of the stack frame when the user specifies
!      '-fstack-check'.  GCC computed the default from the values of the
       above macros and you will normally not need to override that
       default.
  
*************** This discusses registers that address th
*** 31288,31344 ****
  
   -- Macro: STACK_POINTER_REGNUM
       The register number of the stack pointer register, which must also
!      be a fixed register according to `FIXED_REGISTERS'.  On most
       machines, the hardware determines which register this is.
  
   -- Macro: FRAME_POINTER_REGNUM
       The register number of the frame pointer register, which is used to
       access automatic variables in the stack frame.  On some machines,
!      the hardware determines which register this is.  On other
!      machines, you can choose any register you wish for this purpose.
  
   -- Macro: HARD_FRAME_POINTER_REGNUM
       On some machines the offset between the frame pointer and starting
       offset of the automatic variables is not known until after register
       allocation has been done (for example, because the saved registers
       are between these two locations).  On those machines, define
!      `FRAME_POINTER_REGNUM' the number of a special, fixed register to
       be used internally until the offset is known, and define
!      `HARD_FRAME_POINTER_REGNUM' to be the actual hard register number
       used for the frame pointer.
  
       You should define this macro only in the very rare circumstances
       when it is not possible to calculate the offset between the frame
!      pointer and the automatic variables until after register
!      allocation has been completed.  When this macro is defined, you
!      must also indicate in your definition of `ELIMINABLE_REGS' how to
!      eliminate `FRAME_POINTER_REGNUM' into either
!      `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'.
  
       Do not define this macro if it would be the same as
!      `FRAME_POINTER_REGNUM'.
  
   -- Macro: ARG_POINTER_REGNUM
       The register number of the arg pointer register, which is used to
!      access the function's argument list.  On some machines, this is
!      the same as the frame pointer register.  On some machines, the
!      hardware determines which register this is.  On other machines,
!      you can choose any register you wish for this purpose.  If this is
!      not the same register as the frame pointer register, then you must
!      mark it as a fixed register according to `FIXED_REGISTERS', or
!      arrange to be able to eliminate it (*note Elimination::).
  
   -- Macro: HARD_FRAME_POINTER_IS_FRAME_POINTER
       Define this to a preprocessor constant that is nonzero if
!      `hard_frame_pointer_rtx' and `frame_pointer_rtx' should be the
!      same.  The default definition is `(HARD_FRAME_POINTER_REGNUM ==
       FRAME_POINTER_REGNUM)'; you only need to define this macro if that
       definition is not suitable for use in preprocessor conditionals.
  
   -- Macro: HARD_FRAME_POINTER_IS_ARG_POINTER
       Define this to a preprocessor constant that is nonzero if
!      `hard_frame_pointer_rtx' and `arg_pointer_rtx' should be the same.
!      The default definition is `(HARD_FRAME_POINTER_REGNUM ==
       ARG_POINTER_REGNUM)'; you only need to define this macro if that
       definition is not suitable for use in preprocessor conditionals.
  
--- 30882,30938 ----
  
   -- Macro: STACK_POINTER_REGNUM
       The register number of the stack pointer register, which must also
!      be a fixed register according to 'FIXED_REGISTERS'.  On most
       machines, the hardware determines which register this is.
  
   -- Macro: FRAME_POINTER_REGNUM
       The register number of the frame pointer register, which is used to
       access automatic variables in the stack frame.  On some machines,
!      the hardware determines which register this is.  On other machines,
!      you can choose any register you wish for this purpose.
  
   -- Macro: HARD_FRAME_POINTER_REGNUM
       On some machines the offset between the frame pointer and starting
       offset of the automatic variables is not known until after register
       allocation has been done (for example, because the saved registers
       are between these two locations).  On those machines, define
!      'FRAME_POINTER_REGNUM' the number of a special, fixed register to
       be used internally until the offset is known, and define
!      'HARD_FRAME_POINTER_REGNUM' to be the actual hard register number
       used for the frame pointer.
  
       You should define this macro only in the very rare circumstances
       when it is not possible to calculate the offset between the frame
!      pointer and the automatic variables until after register allocation
!      has been completed.  When this macro is defined, you must also
!      indicate in your definition of 'ELIMINABLE_REGS' how to eliminate
!      'FRAME_POINTER_REGNUM' into either 'HARD_FRAME_POINTER_REGNUM' or
!      'STACK_POINTER_REGNUM'.
  
       Do not define this macro if it would be the same as
!      'FRAME_POINTER_REGNUM'.
  
   -- Macro: ARG_POINTER_REGNUM
       The register number of the arg pointer register, which is used to
!      access the function's argument list.  On some machines, this is the
!      same as the frame pointer register.  On some machines, the hardware
!      determines which register this is.  On other machines, you can
!      choose any register you wish for this purpose.  If this is not the
!      same register as the frame pointer register, then you must mark it
!      as a fixed register according to 'FIXED_REGISTERS', or arrange to
!      be able to eliminate it (*note Elimination::).
  
   -- Macro: HARD_FRAME_POINTER_IS_FRAME_POINTER
       Define this to a preprocessor constant that is nonzero if
!      'hard_frame_pointer_rtx' and 'frame_pointer_rtx' should be the
!      same.  The default definition is '(HARD_FRAME_POINTER_REGNUM ==
       FRAME_POINTER_REGNUM)'; you only need to define this macro if that
       definition is not suitable for use in preprocessor conditionals.
  
   -- Macro: HARD_FRAME_POINTER_IS_ARG_POINTER
       Define this to a preprocessor constant that is nonzero if
!      'hard_frame_pointer_rtx' and 'arg_pointer_rtx' should be the same.
!      The default definition is '(HARD_FRAME_POINTER_REGNUM ==
       ARG_POINTER_REGNUM)'; you only need to define this macro if that
       definition is not suitable for use in preprocessor conditionals.
  
*************** This discusses registers that address th
*** 31346,31355 ****
       The register number of the return address pointer register, which
       is used to access the current function's return address from the
       stack.  On some machines, the return address is not at a fixed
!      offset from the frame pointer or stack pointer or argument
!      pointer.  This register can be defined to point to the return
!      address on the stack, and then be converted by `ELIMINABLE_REGS'
!      into either the frame pointer or stack pointer.
  
       Do not define this macro unless there is no other way to get the
       return address from the stack.
--- 30940,30949 ----
       The register number of the return address pointer register, which
       is used to access the current function's return address from the
       stack.  On some machines, the return address is not at a fixed
!      offset from the frame pointer or stack pointer or argument pointer.
!      This register can be defined to point to the return address on the
!      stack, and then be converted by 'ELIMINABLE_REGS' into either the
!      frame pointer or stack pointer.
  
       Do not define this macro unless there is no other way to get the
       return address from the stack.
*************** This discusses registers that address th
*** 31357,31390 ****
   -- Macro: STATIC_CHAIN_REGNUM
   -- Macro: STATIC_CHAIN_INCOMING_REGNUM
       Register numbers used for passing a function's static chain
!      pointer.  If register windows are used, the register number as
!      seen by the called function is `STATIC_CHAIN_INCOMING_REGNUM',
!      while the register number as seen by the calling function is
!      `STATIC_CHAIN_REGNUM'.  If these registers are the same,
!      `STATIC_CHAIN_INCOMING_REGNUM' need not be defined.
  
       The static chain register need not be a fixed register.
  
       If the static chain is passed in memory, these macros should not be
!      defined; instead, the `TARGET_STATIC_CHAIN' hook should be used.
  
   -- Target Hook: rtx TARGET_STATIC_CHAIN (const_tree FNDECL_OR_TYPE,
            bool INCOMING_P)
!      This hook replaces the use of `STATIC_CHAIN_REGNUM' et al for
       targets that may use different static chain locations for different
       nested functions.  This may be required if the target has function
       attributes that affect the calling conventions of the function and
       those calling conventions use different static chain locations.
  
!      The default version of this hook uses `STATIC_CHAIN_REGNUM' et al.
  
       If the static chain is passed in memory, this hook should be used
!      to provide rtx giving `mem' expressions that denote where they are
!      stored.  Often the `mem' expression as seen by the caller will be
!      at an offset from the stack pointer and the `mem' expression as
!      seen by the callee will be at an offset from the frame pointer.  The
!      variables `stack_pointer_rtx', `frame_pointer_rtx', and
!      `arg_pointer_rtx' will have been initialized and should be used to
       refer to those items.
  
   -- Macro: DWARF_FRAME_REGISTERS
--- 30951,30984 ----
   -- Macro: STATIC_CHAIN_REGNUM
   -- Macro: STATIC_CHAIN_INCOMING_REGNUM
       Register numbers used for passing a function's static chain
!      pointer.  If register windows are used, the register number as seen
!      by the called function is 'STATIC_CHAIN_INCOMING_REGNUM', while the
!      register number as seen by the calling function is
!      'STATIC_CHAIN_REGNUM'.  If these registers are the same,
!      'STATIC_CHAIN_INCOMING_REGNUM' need not be defined.
  
       The static chain register need not be a fixed register.
  
       If the static chain is passed in memory, these macros should not be
!      defined; instead, the 'TARGET_STATIC_CHAIN' hook should be used.
  
   -- Target Hook: rtx TARGET_STATIC_CHAIN (const_tree FNDECL_OR_TYPE,
            bool INCOMING_P)
!      This hook replaces the use of 'STATIC_CHAIN_REGNUM' et al for
       targets that may use different static chain locations for different
       nested functions.  This may be required if the target has function
       attributes that affect the calling conventions of the function and
       those calling conventions use different static chain locations.
  
!      The default version of this hook uses 'STATIC_CHAIN_REGNUM' et al.
  
       If the static chain is passed in memory, this hook should be used
!      to provide rtx giving 'mem' expressions that denote where they are
!      stored.  Often the 'mem' expression as seen by the caller will be
!      at an offset from the stack pointer and the 'mem' expression as
!      seen by the callee will be at an offset from the frame pointer.
!      The variables 'stack_pointer_rtx', 'frame_pointer_rtx', and
!      'arg_pointer_rtx' will have been initialized and should be used to
       refer to those items.
  
   -- Macro: DWARF_FRAME_REGISTERS
*************** This discusses registers that address th
*** 31402,31417 ****
       call-saved.
  
       If this macro is not defined, it defaults to
!      `FIRST_PSEUDO_REGISTER'.
  
   -- Macro: PRE_GCC3_DWARF_FRAME_REGISTERS
!      This macro is similar to `DWARF_FRAME_REGISTERS', but is provided
       for backward compatibility in pre GCC 3.0 compiled code.
  
       If this macro is not defined, it defaults to
!      `DWARF_FRAME_REGISTERS'.
  
   -- Macro: DWARF_REG_TO_UNWIND_COLUMN (REGNO)
       Define this macro if the target's representation for dwarf
       registers is different than the internal representation for unwind
       column.  Given a dwarf register, this macro should return the
--- 30996,31013 ----
       call-saved.
  
       If this macro is not defined, it defaults to
!      'FIRST_PSEUDO_REGISTER'.
  
   -- Macro: PRE_GCC3_DWARF_FRAME_REGISTERS
! 
!      This macro is similar to 'DWARF_FRAME_REGISTERS', but is provided
       for backward compatibility in pre GCC 3.0 compiled code.
  
       If this macro is not defined, it defaults to
!      'DWARF_FRAME_REGISTERS'.
  
   -- Macro: DWARF_REG_TO_UNWIND_COLUMN (REGNO)
+ 
       Define this macro if the target's representation for dwarf
       registers is different than the internal representation for unwind
       column.  Given a dwarf register, this macro should return the
*************** This discusses registers that address th
*** 31420,31452 ****
       See the PowerPC's SPE target for an example.
  
   -- Macro: DWARF_FRAME_REGNUM (REGNO)
       Define this macro if the target's representation for dwarf
       registers used in .eh_frame or .debug_frame is different from that
       used in other debug info sections.  Given a GCC hard register
       number, this macro should return the .eh_frame register number.
!      The default is `DBX_REGISTER_NUMBER (REGNO)'.
! 
  
   -- Macro: DWARF2_FRAME_REG_OUT (REGNO, FOR_EH)
-      Define this macro to map register numbers held in the call frame
-      info that GCC has collected using `DWARF_FRAME_REGNUM' to those
-      that should be output in .debug_frame (`FOR_EH' is zero) and
-      .eh_frame (`FOR_EH' is nonzero).  The default is to return `REGNO'.
  
  
   -- Macro: REG_VALUE_IN_UNWIND_CONTEXT
-      Define this macro if the target stores register values as
-      `_Unwind_Word' type in unwind context.  It should be defined if
-      target register size is larger than the size of `void *'.  The
-      default is to store register values as `void *' type.
  
  
   -- Macro: ASSUME_EXTENDED_UNWIND_CONTEXT
       Define this macro to be 1 if the target always uses extended unwind
       context with version, args_size and by_value fields.  If it is
       undefined, it will be defined to 1 when
!      `REG_VALUE_IN_UNWIND_CONTEXT' is defined and 0 otherwise.
! 
  
  
  File: gccint.info,  Node: Elimination,  Next: Stack Arguments,  Prev: Frame Registers,  Up: Stack and Calling
--- 31016,31048 ----
       See the PowerPC's SPE target for an example.
  
   -- Macro: DWARF_FRAME_REGNUM (REGNO)
+ 
       Define this macro if the target's representation for dwarf
       registers used in .eh_frame or .debug_frame is different from that
       used in other debug info sections.  Given a GCC hard register
       number, this macro should return the .eh_frame register number.
!      The default is 'DBX_REGISTER_NUMBER (REGNO)'.
  
   -- Macro: DWARF2_FRAME_REG_OUT (REGNO, FOR_EH)
  
+      Define this macro to map register numbers held in the call frame
+      info that GCC has collected using 'DWARF_FRAME_REGNUM' to those
+      that should be output in .debug_frame ('FOR_EH' is zero) and
+      .eh_frame ('FOR_EH' is nonzero).  The default is to return 'REGNO'.
  
   -- Macro: REG_VALUE_IN_UNWIND_CONTEXT
  
+      Define this macro if the target stores register values as
+      '_Unwind_Word' type in unwind context.  It should be defined if
+      target register size is larger than the size of 'void *'.  The
+      default is to store register values as 'void *' type.
  
   -- Macro: ASSUME_EXTENDED_UNWIND_CONTEXT
+ 
       Define this macro to be 1 if the target always uses extended unwind
       context with version, args_size and by_value fields.  If it is
       undefined, it will be defined to 1 when
!      'REG_VALUE_IN_UNWIND_CONTEXT' is defined and 0 otherwise.
  
  
  File: gccint.info,  Node: Elimination,  Next: Stack Arguments,  Prev: Frame Registers,  Up: Stack and Calling
*************** File: gccint.info,  Node: Elimination,
*** 31457,31497 ****
  This is about eliminating the frame pointer and arg pointer.
  
   -- Target Hook: bool TARGET_FRAME_POINTER_REQUIRED (void)
!      This target hook should return `true' if a function must have and
       use a frame pointer.  This target hook is called in the reload
!      pass.  If its return value is `true' the function will have a
!      frame pointer.
  
       This target hook can in principle examine the current function and
       decide according to the facts, but on most machines the constant
!      `false' or the constant `true' suffices.  Use `false' when the
       machine allows code to be generated with no frame pointer, and
!      doing so saves some time or space.  Use `true' when there is no
       possible advantage to avoiding a frame pointer.
  
       In certain cases, the compiler does not know how to produce valid
       code without a frame pointer.  The compiler recognizes those cases
       and automatically gives the function a frame pointer regardless of
!      what `TARGET_FRAME_POINTER_REQUIRED' returns.  You don't need to
       worry about them.
  
       In a function that does not require a frame pointer, the frame
       pointer register can be allocated for ordinary usage, unless you
!      mark it as a fixed register.  See `FIXED_REGISTERS' for more
       information.
  
!      Default return value is `false'.
  
   -- Macro: INITIAL_FRAME_POINTER_OFFSET (DEPTH-VAR)
       A C statement to store in the variable DEPTH-VAR the difference
       between the frame pointer and the stack pointer values immediately
       after the function prologue.  The value would be computed from
!      information such as the result of `get_frame_size ()' and the
!      tables of registers `regs_ever_live' and `call_used_regs'.
  
!      If `ELIMINABLE_REGS' is defined, this macro will be not be used and
       need not be defined.  Otherwise, it must be defined even if
!      `TARGET_FRAME_POINTER_REQUIRED' always returns true; in that case,
       you may set DEPTH-VAR to anything.
  
   -- Macro: ELIMINABLE_REGS
--- 31053,31093 ----
  This is about eliminating the frame pointer and arg pointer.
  
   -- Target Hook: bool TARGET_FRAME_POINTER_REQUIRED (void)
!      This target hook should return 'true' if a function must have and
       use a frame pointer.  This target hook is called in the reload
!      pass.  If its return value is 'true' the function will have a frame
!      pointer.
  
       This target hook can in principle examine the current function and
       decide according to the facts, but on most machines the constant
!      'false' or the constant 'true' suffices.  Use 'false' when the
       machine allows code to be generated with no frame pointer, and
!      doing so saves some time or space.  Use 'true' when there is no
       possible advantage to avoiding a frame pointer.
  
       In certain cases, the compiler does not know how to produce valid
       code without a frame pointer.  The compiler recognizes those cases
       and automatically gives the function a frame pointer regardless of
!      what 'TARGET_FRAME_POINTER_REQUIRED' returns.  You don't need to
       worry about them.
  
       In a function that does not require a frame pointer, the frame
       pointer register can be allocated for ordinary usage, unless you
!      mark it as a fixed register.  See 'FIXED_REGISTERS' for more
       information.
  
!      Default return value is 'false'.
  
   -- Macro: INITIAL_FRAME_POINTER_OFFSET (DEPTH-VAR)
       A C statement to store in the variable DEPTH-VAR the difference
       between the frame pointer and the stack pointer values immediately
       after the function prologue.  The value would be computed from
!      information such as the result of 'get_frame_size ()' and the
!      tables of registers 'regs_ever_live' and 'call_used_regs'.
  
!      If 'ELIMINABLE_REGS' is defined, this macro will be not be used and
       need not be defined.  Otherwise, it must be defined even if
!      'TARGET_FRAME_POINTER_REQUIRED' always returns true; in that case,
       you may set DEPTH-VAR to anything.
  
   -- Macro: ELIMINABLE_REGS
*************** This is about eliminating the frame poin
*** 31505,31516 ****
       initializations, each of which specifies an original and
       replacement register.
  
!      On some machines, the position of the argument pointer is not
!      known until the compilation is completed.  In such a case, a
!      separate hard register must be used for the argument pointer.
!      This register can be eliminated by replacing it with either the
!      frame pointer or the argument pointer, depending on whether or not
!      the frame pointer has been eliminated.
  
       In this case, you might specify:
            #define ELIMINABLE_REGS  \
--- 31101,31112 ----
       initializations, each of which specifies an original and
       replacement register.
  
!      On some machines, the position of the argument pointer is not known
!      until the compilation is completed.  In such a case, a separate
!      hard register must be used for the argument pointer.  This register
!      can be eliminated by replacing it with either the frame pointer or
!      the argument pointer, depending on whether or not the frame pointer
!      has been eliminated.
  
       In this case, you might specify:
            #define ELIMINABLE_REGS  \
*************** This is about eliminating the frame poin
*** 31523,31541 ****
  
   -- Target Hook: bool TARGET_CAN_ELIMINATE (const int FROM_REG, const
            int TO_REG)
!      This target hook should returns `true' if the compiler is allowed
       to try to replace register number FROM_REG with register number
!      TO_REG.  This target hook need only be defined if `ELIMINABLE_REGS'
!      is defined, and will usually be `true', since most of the cases
       preventing register elimination are things that the compiler
       already knows about.
  
!      Default return value is `true'.
  
   -- Macro: INITIAL_ELIMINATION_OFFSET (FROM-REG, TO-REG, OFFSET-VAR)
!      This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'.  It
       specifies the initial difference between the specified pair of
!      registers.  This macro must be defined if `ELIMINABLE_REGS' is
       defined.
  
  
--- 31119,31137 ----
  
   -- Target Hook: bool TARGET_CAN_ELIMINATE (const int FROM_REG, const
            int TO_REG)
!      This target hook should returns 'true' if the compiler is allowed
       to try to replace register number FROM_REG with register number
!      TO_REG.  This target hook need only be defined if 'ELIMINABLE_REGS'
!      is defined, and will usually be 'true', since most of the cases
       preventing register elimination are things that the compiler
       already knows about.
  
!      Default return value is 'true'.
  
   -- Macro: INITIAL_ELIMINATION_OFFSET (FROM-REG, TO-REG, OFFSET-VAR)
!      This macro is similar to 'INITIAL_FRAME_POINTER_OFFSET'.  It
       specifies the initial difference between the specified pair of
!      registers.  This macro must be defined if 'ELIMINABLE_REGS' is
       defined.
  
  
*************** stack.  See the following section for ot
*** 31549,31557 ****
  certain arguments in registers.
  
   -- Target Hook: bool TARGET_PROMOTE_PROTOTYPES (const_tree FNTYPE)
!      This target hook returns `true' if an argument declared in a
!      prototype as an integral type smaller than `int' should actually be
!      passed as an `int'.  In addition to avoiding errors in certain
       cases of mismatch, it also makes for better code on certain
       machines.  The default is to not promote prototypes.
  
--- 31145,31153 ----
  certain arguments in registers.
  
   -- Target Hook: bool TARGET_PROMOTE_PROTOTYPES (const_tree FNTYPE)
!      This target hook returns 'true' if an argument declared in a
!      prototype as an integral type smaller than 'int' should actually be
!      passed as an 'int'.  In addition to avoiding errors in certain
       cases of mismatch, it also makes for better code on certain
       machines.  The default is to not promote prototypes.
  
*************** certain arguments in registers.
*** 31560,31572 ****
       outgoing arguments.  If the target machine does not have a push
       instruction, set it to zero.  That directs GCC to use an alternate
       strategy: to allocate the entire argument block and then store the
!      arguments into it.  When `PUSH_ARGS' is nonzero, `PUSH_ROUNDING'
       must be defined too.
  
   -- Macro: PUSH_ARGS_REVERSED
       A C expression.  If nonzero, function arguments will be evaluated
       from last to first, rather than from first to last.  If this macro
!      is not defined, it defaults to `PUSH_ARGS' on targets where the
       stack and args grow in opposite directions, and 0 otherwise.
  
   -- Macro: PUSH_ROUNDING (NPUSHED)
--- 31156,31168 ----
       outgoing arguments.  If the target machine does not have a push
       instruction, set it to zero.  That directs GCC to use an alternate
       strategy: to allocate the entire argument block and then store the
!      arguments into it.  When 'PUSH_ARGS' is nonzero, 'PUSH_ROUNDING'
       must be defined too.
  
   -- Macro: PUSH_ARGS_REVERSED
       A C expression.  If nonzero, function arguments will be evaluated
       from last to first, rather than from first to last.  If this macro
!      is not defined, it defaults to 'PUSH_ARGS' on targets where the
       stack and args grow in opposite directions, and 0 otherwise.
  
   -- Macro: PUSH_ROUNDING (NPUSHED)
*************** certain arguments in registers.
*** 31589,31599 ****
   -- Macro: ACCUMULATE_OUTGOING_ARGS
       A C expression.  If nonzero, the maximum amount of space required
       for outgoing arguments will be computed and placed into
!      `crtl->outgoing_args_size'.  No space will be pushed onto the
!      stack for each call; instead, the function prologue should
!      increase the stack frame size by this amount.
  
!      Setting both `PUSH_ARGS' and `ACCUMULATE_OUTGOING_ARGS' is not
       proper.
  
   -- Macro: REG_PARM_STACK_SPACE (FNDECL)
--- 31185,31195 ----
   -- Macro: ACCUMULATE_OUTGOING_ARGS
       A C expression.  If nonzero, the maximum amount of space required
       for outgoing arguments will be computed and placed into
!      'crtl->outgoing_args_size'.  No space will be pushed onto the stack
!      for each call; instead, the function prologue should increase the
!      stack frame size by this amount.
  
!      Setting both 'PUSH_ARGS' and 'ACCUMULATE_OUTGOING_ARGS' is not
       proper.
  
   -- Macro: REG_PARM_STACK_SPACE (FNDECL)
*************** certain arguments in registers.
*** 31601,31640 ****
       been allocated for arguments even when their values are passed in
       registers.
  
!      The value of this macro is the size, in bytes, of the area
!      reserved for arguments passed in registers for the function
!      represented by FNDECL, which can be zero if GCC is calling a
!      library function.  The argument FNDECL can be the FUNCTION_DECL,
!      or the type itself of the function.
  
       This space can be allocated by the caller, or be a part of the
!      machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' says
       which.
  
   -- Macro: INCOMING_REG_PARM_STACK_SPACE (FNDECL)
!      Like `REG_PARM_STACK_SPACE', but for incoming register arguments.
       Define this macro if space guaranteed when compiling a function
!      body is different to space required when making a call, a
!      situation that can arise with K&R style function definitions.
  
   -- Macro: OUTGOING_REG_PARM_STACK_SPACE (FNTYPE)
       Define this to a nonzero value if it is the responsibility of the
       caller to allocate the area reserved for arguments passed in
!      registers when calling a function of FNTYPE.  FNTYPE may be NULL
!      if the function called is a library function.
  
!      If `ACCUMULATE_OUTGOING_ARGS' is defined, this macro controls
       whether the space for these arguments counts in the value of
!      `crtl->outgoing_args_size'.
  
   -- Macro: STACK_PARMS_IN_REG_PARM_AREA
!      Define this macro if `REG_PARM_STACK_SPACE' is defined, but the
       stack parameters don't skip the area specified by it.
  
!      Normally, when a parameter is not passed in registers, it is
!      placed on the stack beyond the `REG_PARM_STACK_SPACE' area.
!      Defining this macro suppresses this behavior and causes the
!      parameter to be passed on the stack in its natural location.
  
   -- Target Hook: int TARGET_RETURN_POPS_ARGS (tree FUNDECL, tree
            FUNTYPE, int SIZE)
--- 31197,31236 ----
       been allocated for arguments even when their values are passed in
       registers.
  
!      The value of this macro is the size, in bytes, of the area reserved
!      for arguments passed in registers for the function represented by
!      FNDECL, which can be zero if GCC is calling a library function.
!      The argument FNDECL can be the FUNCTION_DECL, or the type itself of
!      the function.
  
       This space can be allocated by the caller, or be a part of the
!      machine-dependent stack frame: 'OUTGOING_REG_PARM_STACK_SPACE' says
       which.
  
   -- Macro: INCOMING_REG_PARM_STACK_SPACE (FNDECL)
!      Like 'REG_PARM_STACK_SPACE', but for incoming register arguments.
       Define this macro if space guaranteed when compiling a function
!      body is different to space required when making a call, a situation
!      that can arise with K&R style function definitions.
  
   -- Macro: OUTGOING_REG_PARM_STACK_SPACE (FNTYPE)
       Define this to a nonzero value if it is the responsibility of the
       caller to allocate the area reserved for arguments passed in
!      registers when calling a function of FNTYPE.  FNTYPE may be NULL if
!      the function called is a library function.
  
!      If 'ACCUMULATE_OUTGOING_ARGS' is defined, this macro controls
       whether the space for these arguments counts in the value of
!      'crtl->outgoing_args_size'.
  
   -- Macro: STACK_PARMS_IN_REG_PARM_AREA
!      Define this macro if 'REG_PARM_STACK_SPACE' is defined, but the
       stack parameters don't skip the area specified by it.
  
!      Normally, when a parameter is not passed in registers, it is placed
!      on the stack beyond the 'REG_PARM_STACK_SPACE' area.  Defining this
!      macro suppresses this behavior and causes the parameter to be
!      passed on the stack in its natural location.
  
   -- Target Hook: int TARGET_RETURN_POPS_ARGS (tree FUNDECL, tree
            FUNTYPE, int SIZE)
*************** certain arguments in registers.
*** 31645,31685 ****
  
       FUNDECL is a C variable whose value is a tree node that describes
       the function in question.  Normally it is a node of type
!      `FUNCTION_DECL' that describes the declaration of the function.
!      From this you can obtain the `DECL_ATTRIBUTES' of the function.
  
       FUNTYPE is a C variable whose value is a tree node that describes
       the function in question.  Normally it is a node of type
!      `FUNCTION_TYPE' that describes the data type of the function.
!      From this it is possible to obtain the data types of the value and
       arguments (if known).
  
!      When a call to a library function is being considered, FUNDECL
!      will contain an identifier node for the library function.  Thus, if
!      you need to distinguish among various library functions, you can
!      do so by their names.  Note that "library function" in this
!      context means a function used to perform arithmetic, whose name is
!      known specially in the compiler and was not mentioned in the C
!      code being compiled.
  
!      SIZE is the number of bytes of arguments passed on the stack.  If
!      a variable number of bytes is passed, it is zero, and argument
       popping will always be the responsibility of the calling function.
  
       On the VAX, all functions always pop their arguments, so the
       definition of this macro is SIZE.  On the 68000, using the standard
       calling convention, no functions pop their arguments, so the value
       of the macro is always 0 in this case.  But an alternative calling
!      convention is available in which functions that take a fixed
!      number of arguments pop them but other functions (such as
!      `printf') pop nothing (the caller pops all).  When this convention
!      is in use, FUNTYPE is examined to determine whether a function
!      takes a fixed number of arguments.
  
   -- Macro: CALL_POPS_ARGS (CUM)
       A C expression that should indicate the number of bytes a call
       sequence pops off the stack.  It is added to the value of
!      `RETURN_POPS_ARGS' when compiling a function call.
  
       CUM is the variable in which all arguments to the called function
       have been accumulated.
--- 31241,31281 ----
  
       FUNDECL is a C variable whose value is a tree node that describes
       the function in question.  Normally it is a node of type
!      'FUNCTION_DECL' that describes the declaration of the function.
!      From this you can obtain the 'DECL_ATTRIBUTES' of the function.
  
       FUNTYPE is a C variable whose value is a tree node that describes
       the function in question.  Normally it is a node of type
!      'FUNCTION_TYPE' that describes the data type of the function.  From
!      this it is possible to obtain the data types of the value and
       arguments (if known).
  
!      When a call to a library function is being considered, FUNDECL will
!      contain an identifier node for the library function.  Thus, if you
!      need to distinguish among various library functions, you can do so
!      by their names.  Note that "library function" in this context means
!      a function used to perform arithmetic, whose name is known
!      specially in the compiler and was not mentioned in the C code being
!      compiled.
  
!      SIZE is the number of bytes of arguments passed on the stack.  If a
!      variable number of bytes is passed, it is zero, and argument
       popping will always be the responsibility of the calling function.
  
       On the VAX, all functions always pop their arguments, so the
       definition of this macro is SIZE.  On the 68000, using the standard
       calling convention, no functions pop their arguments, so the value
       of the macro is always 0 in this case.  But an alternative calling
!      convention is available in which functions that take a fixed number
!      of arguments pop them but other functions (such as 'printf') pop
!      nothing (the caller pops all).  When this convention is in use,
!      FUNTYPE is examined to determine whether a function takes a fixed
!      number of arguments.
  
   -- Macro: CALL_POPS_ARGS (CUM)
       A C expression that should indicate the number of bytes a call
       sequence pops off the stack.  It is added to the value of
!      'RETURN_POPS_ARGS' when compiling a function call.
  
       CUM is the variable in which all arguments to the called function
       have been accumulated.
*************** certain arguments in registers.
*** 31688,31694 ****
       used that pops certain registers off the stack, depending on the
       arguments that have been passed to the function.  Since this is a
       property of the call site, not of the called function,
!      `RETURN_POPS_ARGS' is not appropriate.
  
  
  File: gccint.info,  Node: Register Arguments,  Next: Scalar Return,  Prev: Stack Arguments,  Up: Stack and Calling
--- 31284,31290 ----
       used that pops certain registers off the stack, depending on the
       arguments that have been passed to the function.  Since this is a
       property of the call site, not of the called function,
!      'RETURN_POPS_ARGS' is not appropriate.
  
  
  File: gccint.info,  Node: Register Arguments,  Next: Scalar Return,  Prev: Stack Arguments,  Up: Stack and Calling
*************** the stack.
*** 31708,31782 ****
       The arguments are CA, which summarizes all the previous arguments;
       MODE, the machine mode of the argument; TYPE, the data type of the
       argument as a tree node or 0 if that is not known (which happens
!      for C support library functions); and NAMED, which is `true' for
!      an ordinary argument and `false' for nameless arguments that
!      correspond to `...' in the called function's prototype.  TYPE can
       be an incomplete type if a syntax error has previously occurred.
  
!      The return value is usually either a `reg' RTX for the hard
       register in which to pass the argument, or zero to pass the
       argument on the stack.
  
!      The return value can be a `const_int' which means argument is
       passed in a target specific slot with specified number.  Target
       hooks should be used to store or load argument in such case.  See
!      `TARGET_STORE_BOUNDS_FOR_ARG' and `TARGET_LOAD_BOUNDS_FOR_ARG' for
       more information.
  
!      The value of the expression can also be a `parallel' RTX.  This is
!      used when an argument is passed in multiple locations.  The mode
!      of the `parallel' should be the mode of the entire argument.  The
!      `parallel' holds any number of `expr_list' pairs; each one
       describes where part of the argument is passed.  In each
!      `expr_list' the first operand must be a `reg' RTX for the hard
       register in which to pass this part of the argument, and the mode
       of the register RTX indicates how large this part of the argument
!      is.  The second operand of the `expr_list' is a `const_int' which
       gives the offset in bytes into the entire argument of where this
!      part starts.  As a special exception the first `expr_list' in the
!      `parallel' RTX may have a first operand of zero.  This indicates
       that the entire argument is also stored on the stack.
  
!      The last time this hook is called, it is called with `MODE ==
!      VOIDmode', and its result is passed to the `call' or `call_value'
       pattern as operands 2 and 3 respectively.
  
!      The usual way to make the ISO library `stdarg.h' work on a machine
       where some arguments are usually passed in registers, is to cause
!      nameless arguments to be passed on the stack instead.  This is
!      done by making `TARGET_FUNCTION_ARG' return 0 whenever NAMED is
!      `false'.
  
!      You may use the hook `targetm.calls.must_pass_in_stack' in the
!      definition of this macro to determine if this argument is of a
!      type that must be passed in the stack.  If `REG_PARM_STACK_SPACE'
!      is not defined and `TARGET_FUNCTION_ARG' returns nonzero for such
!      an argument, the compiler will abort.  If `REG_PARM_STACK_SPACE' is
!      defined, the argument will be computed in the stack and then
!      loaded into a register.
  
   -- Target Hook: bool TARGET_MUST_PASS_IN_STACK (machine_mode MODE,
            const_tree TYPE)
!      This target hook should return `true' if we should not pass TYPE
!      solely in registers.  The file `expr.h' defines a definition that
!      is usually appropriate, refer to `expr.h' for additional
       documentation.
  
!  -- Target Hook: rtx TARGET_FUNCTION_INCOMING_ARG (cumulative_args_t
!           CA, machine_mode MODE, const_tree TYPE, bool NAMED)
       Define this hook if the target machine has "register windows", so
       that the register in which a function sees an arguments is not
       necessarily the same as the one in which the caller passed the
       argument.
  
!      For such machines, `TARGET_FUNCTION_ARG' computes the register in
       which the caller passes the value, and
!      `TARGET_FUNCTION_INCOMING_ARG' should be defined in a similar
       fashion to tell the function being called where the arguments will
       arrive.
  
!      If `TARGET_FUNCTION_INCOMING_ARG' is not defined,
!      `TARGET_FUNCTION_ARG' serves both purposes.
  
   -- Target Hook: bool TARGET_USE_PSEUDO_PIC_REG (void)
       This hook should return 1 in case pseudo register should be created
--- 31304,31377 ----
       The arguments are CA, which summarizes all the previous arguments;
       MODE, the machine mode of the argument; TYPE, the data type of the
       argument as a tree node or 0 if that is not known (which happens
!      for C support library functions); and NAMED, which is 'true' for an
!      ordinary argument and 'false' for nameless arguments that
!      correspond to '...' in the called function's prototype.  TYPE can
       be an incomplete type if a syntax error has previously occurred.
  
!      The return value is usually either a 'reg' RTX for the hard
       register in which to pass the argument, or zero to pass the
       argument on the stack.
  
!      The return value can be a 'const_int' which means argument is
       passed in a target specific slot with specified number.  Target
       hooks should be used to store or load argument in such case.  See
!      'TARGET_STORE_BOUNDS_FOR_ARG' and 'TARGET_LOAD_BOUNDS_FOR_ARG' for
       more information.
  
!      The value of the expression can also be a 'parallel' RTX.  This is
!      used when an argument is passed in multiple locations.  The mode of
!      the 'parallel' should be the mode of the entire argument.  The
!      'parallel' holds any number of 'expr_list' pairs; each one
       describes where part of the argument is passed.  In each
!      'expr_list' the first operand must be a 'reg' RTX for the hard
       register in which to pass this part of the argument, and the mode
       of the register RTX indicates how large this part of the argument
!      is.  The second operand of the 'expr_list' is a 'const_int' which
       gives the offset in bytes into the entire argument of where this
!      part starts.  As a special exception the first 'expr_list' in the
!      'parallel' RTX may have a first operand of zero.  This indicates
       that the entire argument is also stored on the stack.
  
!      The last time this hook is called, it is called with 'MODE ==
!      VOIDmode', and its result is passed to the 'call' or 'call_value'
       pattern as operands 2 and 3 respectively.
  
!      The usual way to make the ISO library 'stdarg.h' work on a machine
       where some arguments are usually passed in registers, is to cause
!      nameless arguments to be passed on the stack instead.  This is done
!      by making 'TARGET_FUNCTION_ARG' return 0 whenever NAMED is 'false'.
  
!      You may use the hook 'targetm.calls.must_pass_in_stack' in the
!      definition of this macro to determine if this argument is of a type
!      that must be passed in the stack.  If 'REG_PARM_STACK_SPACE' is not
!      defined and 'TARGET_FUNCTION_ARG' returns nonzero for such an
!      argument, the compiler will abort.  If 'REG_PARM_STACK_SPACE' is
!      defined, the argument will be computed in the stack and then loaded
!      into a register.
  
   -- Target Hook: bool TARGET_MUST_PASS_IN_STACK (machine_mode MODE,
            const_tree TYPE)
!      This target hook should return 'true' if we should not pass TYPE
!      solely in registers.  The file 'expr.h' defines a definition that
!      is usually appropriate, refer to 'expr.h' for additional
       documentation.
  
!  -- Target Hook: rtx TARGET_FUNCTION_INCOMING_ARG (cumulative_args_t CA,
!           machine_mode MODE, const_tree TYPE, bool NAMED)
       Define this hook if the target machine has "register windows", so
       that the register in which a function sees an arguments is not
       necessarily the same as the one in which the caller passed the
       argument.
  
!      For such machines, 'TARGET_FUNCTION_ARG' computes the register in
       which the caller passes the value, and
!      'TARGET_FUNCTION_INCOMING_ARG' should be defined in a similar
       fashion to tell the function being called where the arguments will
       arrive.
  
!      If 'TARGET_FUNCTION_INCOMING_ARG' is not defined,
!      'TARGET_FUNCTION_ARG' serves both purposes.
  
   -- Target Hook: bool TARGET_USE_PSEUDO_PIC_REG (void)
       This hook should return 1 in case pseudo register should be created
*************** the stack.
*** 31796,31822 ****
       On some machines, certain arguments must be passed partially in
       registers and partially in memory.  On these machines, typically
       the first few words of arguments are passed in registers, and the
!      rest on the stack.  If a multi-word argument (a `double' or a
       structure) crosses that boundary, its first few words must be
       passed in registers and the rest must be pushed.  This macro tells
       the compiler when this occurs, and how many bytes should go in
       registers.
  
!      `TARGET_FUNCTION_ARG' for these arguments should return the first
       register to be used by the caller for this argument; likewise
!      `TARGET_FUNCTION_INCOMING_ARG', for the called function.
  
   -- Target Hook: bool TARGET_PASS_BY_REFERENCE (cumulative_args_t CUM,
            machine_mode MODE, const_tree TYPE, bool NAMED)
!      This target hook should return `true' if an argument at the
       position indicated by CUM should be passed by reference.  This
       predicate is queried after target independent reasons for being
!      passed by reference, such as `TREE_ADDRESSABLE (type)'.
  
!      If the hook returns true, a copy of that argument is made in
!      memory and a pointer to the argument is passed instead of the
!      argument itself.  The pointer is passed in whatever way is
!      appropriate for passing a pointer to that type.
  
   -- Target Hook: bool TARGET_CALLEE_COPIES (cumulative_args_t CUM,
            machine_mode MODE, const_tree TYPE, bool NAMED)
--- 31391,31417 ----
       On some machines, certain arguments must be passed partially in
       registers and partially in memory.  On these machines, typically
       the first few words of arguments are passed in registers, and the
!      rest on the stack.  If a multi-word argument (a 'double' or a
       structure) crosses that boundary, its first few words must be
       passed in registers and the rest must be pushed.  This macro tells
       the compiler when this occurs, and how many bytes should go in
       registers.
  
!      'TARGET_FUNCTION_ARG' for these arguments should return the first
       register to be used by the caller for this argument; likewise
!      'TARGET_FUNCTION_INCOMING_ARG', for the called function.
  
   -- Target Hook: bool TARGET_PASS_BY_REFERENCE (cumulative_args_t CUM,
            machine_mode MODE, const_tree TYPE, bool NAMED)
!      This target hook should return 'true' if an argument at the
       position indicated by CUM should be passed by reference.  This
       predicate is queried after target independent reasons for being
!      passed by reference, such as 'TREE_ADDRESSABLE (type)'.
  
!      If the hook returns true, a copy of that argument is made in memory
!      and a pointer to the argument is passed instead of the argument
!      itself.  The pointer is passed in whatever way is appropriate for
!      passing a pointer to that type.
  
   -- Target Hook: bool TARGET_CALLEE_COPIES (cumulative_args_t CUM,
            machine_mode MODE, const_tree TYPE, bool NAMED)
*************** the stack.
*** 31833,31936 ****
  
   -- Macro: CUMULATIVE_ARGS
       A C type for declaring a variable that is used as the first
!      argument of `TARGET_FUNCTION_ARG' and other related values.  For
!      some target machines, the type `int' suffices and can hold the
       number of bytes of argument so far.
  
!      There is no need to record in `CUMULATIVE_ARGS' anything about the
       arguments that have been passed on the stack.  The compiler has
       other variables to keep track of that.  For target machines on
       which all arguments are passed on the stack, there is no need to
!      store anything in `CUMULATIVE_ARGS'; however, the data structure
!      must exist and should not be empty, so use `int'.
  
   -- Macro: OVERRIDE_ABI_FORMAT (FNDECL)
       If defined, this macro is called before generating any code for a
       function, but after the CFUN descriptor for the function has been
!      created.  The back end may use this macro to update CFUN to
!      reflect an ABI other than that which would normally be used by
!      default.  If the compiler is generating code for a
!      compiler-generated function, FNDECL may be `NULL'.
  
   -- Macro: INIT_CUMULATIVE_ARGS (CUM, FNTYPE, LIBNAME, FNDECL,
            N_NAMED_ARGS)
       A C statement (sans semicolon) for initializing the variable CUM
       for the state at the beginning of the argument list.  The variable
!      has type `CUMULATIVE_ARGS'.  The value of FNTYPE is the tree node
!      for the data type of the function which will receive the args, or
!      0 if the args are to a compiler support library function.  For
!      direct calls that are not libcalls, FNDECL contain the declaration
!      node of the function.  FNDECL is also set when
!      `INIT_CUMULATIVE_ARGS' is used to find arguments for the function
!      being compiled.  N_NAMED_ARGS is set to the number of named
!      arguments, including a structure return address if it is passed as
!      a parameter, when making a call.  When processing incoming
!      arguments, N_NAMED_ARGS is set to -1.
  
       When processing a call to a compiler support library function,
!      LIBNAME identifies which one.  It is a `symbol_ref' rtx which
       contains the name of the function, as a string.  LIBNAME is 0 when
       an ordinary C function call is being processed.  Thus, each time
       this macro is called, either LIBNAME or FNTYPE is nonzero, but
       never both of them at once.
  
   -- Macro: INIT_CUMULATIVE_LIBCALL_ARGS (CUM, MODE, LIBNAME)
!      Like `INIT_CUMULATIVE_ARGS' but only used for outgoing libcalls,
!      it gets a `MODE' argument instead of FNTYPE, that would be `NULL'.
       INDIRECT would always be zero, too.  If this macro is not defined,
!      `INIT_CUMULATIVE_ARGS (cum, NULL_RTX, libname, 0)' is used instead.
  
   -- Macro: INIT_CUMULATIVE_INCOMING_ARGS (CUM, FNTYPE, LIBNAME)
!      Like `INIT_CUMULATIVE_ARGS' but overrides it for the purposes of
       finding the arguments for the function being compiled.  If this
!      macro is undefined, `INIT_CUMULATIVE_ARGS' is used instead.
  
       The value passed for LIBNAME is always 0, since library routines
       with special calling conventions are never compiled with GCC.  The
!      argument LIBNAME exists for symmetry with `INIT_CUMULATIVE_ARGS'.
  
!  -- Target Hook: void TARGET_FUNCTION_ARG_ADVANCE (cumulative_args_t
!           CA, machine_mode MODE, const_tree TYPE, bool NAMED)
       This hook updates the summarizer variable pointed to by CA to
       advance past an argument in the argument list.  The values MODE,
       TYPE and NAMED describe that argument.  Once this is done, the
       variable CUM is suitable for analyzing the _following_ argument
!      with `TARGET_FUNCTION_ARG', etc.
  
       This hook need not do anything if the argument in question was
!      passed on the stack.  The compiler knows how to track the amount
!      of stack space used for arguments without any special help.
  
   -- Macro: FUNCTION_ARG_OFFSET (MODE, TYPE)
       If defined, a C expression that is the number of bytes to add to
       the offset of the argument passed in memory.  This is needed for
!      the SPU, which passes `char' and `short' arguments in the preferred
       slot that is in the middle of the quad word instead of starting at
       the top.
  
   -- Macro: FUNCTION_ARG_PADDING (MODE, TYPE)
       If defined, a C expression which determines whether, and in which
       direction, to pad out an argument with extra space.  The value
!      should be of type `enum direction': either `upward' to pad above
!      the argument, `downward' to pad below, or `none' to inhibit
       padding.
  
       The _amount_ of padding is not controlled by this macro, but by the
!      target hook `TARGET_FUNCTION_ARG_ROUND_BOUNDARY'.  It is always
       just enough to reach the next multiple of that boundary.
  
       This macro has a default definition which is right for most
!      systems.  For little-endian machines, the default is to pad
!      upward.  For big-endian machines, the default is to pad downward
!      for an argument of constant size shorter than an `int', and upward
       otherwise.
  
   -- Macro: PAD_VARARGS_DOWN
       If defined, a C expression which determines whether the default
       implementation of va_arg will attempt to pad down before reading
       the next argument, if that argument is smaller than its aligned
!      space as controlled by `PARM_BOUNDARY'.  If this macro is not
!      defined, all such arguments are padded down if `BYTES_BIG_ENDIAN'
       is true.
  
   -- Macro: BLOCK_REG_PADDING (MODE, TYPE, FIRST)
--- 31428,31531 ----
  
   -- Macro: CUMULATIVE_ARGS
       A C type for declaring a variable that is used as the first
!      argument of 'TARGET_FUNCTION_ARG' and other related values.  For
!      some target machines, the type 'int' suffices and can hold the
       number of bytes of argument so far.
  
!      There is no need to record in 'CUMULATIVE_ARGS' anything about the
       arguments that have been passed on the stack.  The compiler has
       other variables to keep track of that.  For target machines on
       which all arguments are passed on the stack, there is no need to
!      store anything in 'CUMULATIVE_ARGS'; however, the data structure
!      must exist and should not be empty, so use 'int'.
  
   -- Macro: OVERRIDE_ABI_FORMAT (FNDECL)
       If defined, this macro is called before generating any code for a
       function, but after the CFUN descriptor for the function has been
!      created.  The back end may use this macro to update CFUN to reflect
!      an ABI other than that which would normally be used by default.  If
!      the compiler is generating code for a compiler-generated function,
!      FNDECL may be 'NULL'.
  
   -- Macro: INIT_CUMULATIVE_ARGS (CUM, FNTYPE, LIBNAME, FNDECL,
            N_NAMED_ARGS)
       A C statement (sans semicolon) for initializing the variable CUM
       for the state at the beginning of the argument list.  The variable
!      has type 'CUMULATIVE_ARGS'.  The value of FNTYPE is the tree node
!      for the data type of the function which will receive the args, or 0
!      if the args are to a compiler support library function.  For direct
!      calls that are not libcalls, FNDECL contain the declaration node of
!      the function.  FNDECL is also set when 'INIT_CUMULATIVE_ARGS' is
!      used to find arguments for the function being compiled.
!      N_NAMED_ARGS is set to the number of named arguments, including a
!      structure return address if it is passed as a parameter, when
!      making a call.  When processing incoming arguments, N_NAMED_ARGS is
!      set to -1.
  
       When processing a call to a compiler support library function,
!      LIBNAME identifies which one.  It is a 'symbol_ref' rtx which
       contains the name of the function, as a string.  LIBNAME is 0 when
       an ordinary C function call is being processed.  Thus, each time
       this macro is called, either LIBNAME or FNTYPE is nonzero, but
       never both of them at once.
  
   -- Macro: INIT_CUMULATIVE_LIBCALL_ARGS (CUM, MODE, LIBNAME)
!      Like 'INIT_CUMULATIVE_ARGS' but only used for outgoing libcalls, it
!      gets a 'MODE' argument instead of FNTYPE, that would be 'NULL'.
       INDIRECT would always be zero, too.  If this macro is not defined,
!      'INIT_CUMULATIVE_ARGS (cum, NULL_RTX, libname, 0)' is used instead.
  
   -- Macro: INIT_CUMULATIVE_INCOMING_ARGS (CUM, FNTYPE, LIBNAME)
!      Like 'INIT_CUMULATIVE_ARGS' but overrides it for the purposes of
       finding the arguments for the function being compiled.  If this
!      macro is undefined, 'INIT_CUMULATIVE_ARGS' is used instead.
  
       The value passed for LIBNAME is always 0, since library routines
       with special calling conventions are never compiled with GCC.  The
!      argument LIBNAME exists for symmetry with 'INIT_CUMULATIVE_ARGS'.
  
!  -- Target Hook: void TARGET_FUNCTION_ARG_ADVANCE (cumulative_args_t CA,
!           machine_mode MODE, const_tree TYPE, bool NAMED)
       This hook updates the summarizer variable pointed to by CA to
       advance past an argument in the argument list.  The values MODE,
       TYPE and NAMED describe that argument.  Once this is done, the
       variable CUM is suitable for analyzing the _following_ argument
!      with 'TARGET_FUNCTION_ARG', etc.
  
       This hook need not do anything if the argument in question was
!      passed on the stack.  The compiler knows how to track the amount of
!      stack space used for arguments without any special help.
  
   -- Macro: FUNCTION_ARG_OFFSET (MODE, TYPE)
       If defined, a C expression that is the number of bytes to add to
       the offset of the argument passed in memory.  This is needed for
!      the SPU, which passes 'char' and 'short' arguments in the preferred
       slot that is in the middle of the quad word instead of starting at
       the top.
  
   -- Macro: FUNCTION_ARG_PADDING (MODE, TYPE)
       If defined, a C expression which determines whether, and in which
       direction, to pad out an argument with extra space.  The value
!      should be of type 'enum direction': either 'upward' to pad above
!      the argument, 'downward' to pad below, or 'none' to inhibit
       padding.
  
       The _amount_ of padding is not controlled by this macro, but by the
!      target hook 'TARGET_FUNCTION_ARG_ROUND_BOUNDARY'.  It is always
       just enough to reach the next multiple of that boundary.
  
       This macro has a default definition which is right for most
!      systems.  For little-endian machines, the default is to pad upward.
!      For big-endian machines, the default is to pad downward for an
!      argument of constant size shorter than an 'int', and upward
       otherwise.
  
   -- Macro: PAD_VARARGS_DOWN
       If defined, a C expression which determines whether the default
       implementation of va_arg will attempt to pad down before reading
       the next argument, if that argument is smaller than its aligned
!      space as controlled by 'PARM_BOUNDARY'.  If this macro is not
!      defined, all such arguments are padded down if 'BYTES_BIG_ENDIAN'
       is true.
  
   -- Macro: BLOCK_REG_PADDING (MODE, TYPE, FIRST)
*************** the stack.
*** 31938,31960 ****
       registers and memory.  FIRST is nonzero if this is the only
       element.  Defining this macro allows better control of register
       function parameters on big-endian machines, without using
!      `PARALLEL' rtl.  In particular, `MUST_PASS_IN_STACK' need not test
       padding and mode of types in registers, as there is no longer a
!      "wrong" part of a register;  For example, a three byte aggregate
!      may be passed in the high part of a register if so required.
  
!  -- Target Hook: unsigned int TARGET_FUNCTION_ARG_BOUNDARY
!           (machine_mode MODE, const_tree TYPE)
       This hook returns the alignment boundary, in bits, of an argument
       with the specified mode and type.  The default hook returns
!      `PARM_BOUNDARY' for all arguments.
  
   -- Target Hook: unsigned int TARGET_FUNCTION_ARG_ROUND_BOUNDARY
            (machine_mode MODE, const_tree TYPE)
!      Normally, the size of an argument is rounded up to `PARM_BOUNDARY',
!      which is the default value for this hook.  You can define this
!      hook to return a different value if an argument size must be
!      rounded to a larger value.
  
   -- Macro: FUNCTION_ARG_REGNO_P (REGNO)
       A C expression that is nonzero if REGNO is the number of a hard
--- 31533,31555 ----
       registers and memory.  FIRST is nonzero if this is the only
       element.  Defining this macro allows better control of register
       function parameters on big-endian machines, without using
!      'PARALLEL' rtl.  In particular, 'MUST_PASS_IN_STACK' need not test
       padding and mode of types in registers, as there is no longer a
!      "wrong" part of a register; For example, a three byte aggregate may
!      be passed in the high part of a register if so required.
  
!  -- Target Hook: unsigned int TARGET_FUNCTION_ARG_BOUNDARY (machine_mode
!           MODE, const_tree TYPE)
       This hook returns the alignment boundary, in bits, of an argument
       with the specified mode and type.  The default hook returns
!      'PARM_BOUNDARY' for all arguments.
  
   -- Target Hook: unsigned int TARGET_FUNCTION_ARG_ROUND_BOUNDARY
            (machine_mode MODE, const_tree TYPE)
!      Normally, the size of an argument is rounded up to 'PARM_BOUNDARY',
!      which is the default value for this hook.  You can define this hook
!      to return a different value if an argument size must be rounded to
!      a larger value.
  
   -- Macro: FUNCTION_ARG_REGNO_P (REGNO)
       A C expression that is nonzero if REGNO is the number of a hard
*************** the stack.
*** 31969,31991 ****
       as two scalar parameters.  By default, GCC will attempt to pack
       complex arguments into the target's word size.  Some ABIs require
       complex arguments to be split and treated as their individual
!      components.  For example, on AIX64, complex floats should be
!      passed in a pair of floating point registers, even though a
!      complex float would fit in one 64-bit floating point register.
  
!      The default value of this hook is `NULL', which is treated as
       always false.
  
   -- Target Hook: tree TARGET_BUILD_BUILTIN_VA_LIST (void)
!      This hook returns a type node for `va_list' for the target.  The
!      default version of the hook returns `void*'.
  
!  -- Target Hook: int TARGET_ENUM_VA_LIST_P (int IDX, const char
!           **PNAME, tree *PTREE)
!      This target hook is used in function `c_common_nodes_and_builtins'
       to iterate through the target specific builtin types for va_list.
!      The variable IDX is used as iterator. PNAME has to be a pointer to
!      a `const char *' and PTREE a pointer to a `tree' typed variable.
       The arguments PNAME and PTREE are used to store the result of this
       macro and are set to the name of the va_list builtin type and its
       internal type.  If the return value of this macro is zero, then
--- 31564,31586 ----
       as two scalar parameters.  By default, GCC will attempt to pack
       complex arguments into the target's word size.  Some ABIs require
       complex arguments to be split and treated as their individual
!      components.  For example, on AIX64, complex floats should be passed
!      in a pair of floating point registers, even though a complex float
!      would fit in one 64-bit floating point register.
  
!      The default value of this hook is 'NULL', which is treated as
       always false.
  
   -- Target Hook: tree TARGET_BUILD_BUILTIN_VA_LIST (void)
!      This hook returns a type node for 'va_list' for the target.  The
!      default version of the hook returns 'void*'.
  
!  -- Target Hook: int TARGET_ENUM_VA_LIST_P (int IDX, const char **PNAME,
!           tree *PTREE)
!      This target hook is used in function 'c_common_nodes_and_builtins'
       to iterate through the target specific builtin types for va_list.
!      The variable IDX is used as iterator.  PNAME has to be a pointer to
!      a 'const char *' and PTREE a pointer to a 'tree' typed variable.
       The arguments PNAME and PTREE are used to store the result of this
       macro and are set to the name of the va_list builtin type and its
       internal type.  If the return value of this macro is zero, then
*************** the stack.
*** 31995,32036 ****
   -- Target Hook: tree TARGET_FN_ABI_VA_LIST (tree FNDECL)
       This hook returns the va_list type of the calling convention
       specified by FNDECL.  The default version of this hook returns
!      `va_list_type_node'.
  
   -- Target Hook: tree TARGET_CANONICAL_VA_LIST_TYPE (tree TYPE)
       This hook returns the va_list type of the calling convention
!      specified by the type of TYPE. If TYPE is not a valid va_list
!      type, it returns `NULL_TREE'.
  
   -- Target Hook: tree TARGET_GIMPLIFY_VA_ARG_EXPR (tree VALIST, tree
            TYPE, gimple_seq *PRE_P, gimple_seq *POST_P)
!      This hook performs target-specific gimplification of
!      `VA_ARG_EXPR'.  The first two parameters correspond to the
!      arguments to `va_arg'; the latter two are as in
!      `gimplify.c:gimplify_expr'.
  
   -- Target Hook: bool TARGET_VALID_POINTER_MODE (machine_mode MODE)
       Define this to return nonzero if the port can handle pointers with
       machine mode MODE.  The default version of this hook returns true
!      for both `ptr_mode' and `Pmode'.
  
   -- Target Hook: bool TARGET_REF_MAY_ALIAS_ERRNO (struct ao_ref *REF)
!      Define this to return nonzero if the memory reference REF  may
!      alias with the system C library errno location.  The default
!      version of this hook assumes the system C library errno location
!      is either a declaration of type int or accessed by dereferencing
!      a pointer to int.
  
   -- Target Hook: bool TARGET_SCALAR_MODE_SUPPORTED_P (machine_mode MODE)
       Define this to return nonzero if the port is prepared to handle
       insns involving scalar mode MODE.  For a scalar mode to be
!      considered supported, all the basic arithmetic and comparisons
!      must work.
  
!      The default version of this hook returns true for any mode
!      required to handle the basic C types (as defined by the port).
!      Included here are the double-word arithmetic supported by the code
!      in `optabs.c'.
  
   -- Target Hook: bool TARGET_VECTOR_MODE_SUPPORTED_P (machine_mode MODE)
       Define this to return nonzero if the port is prepared to handle
--- 31590,31630 ----
   -- Target Hook: tree TARGET_FN_ABI_VA_LIST (tree FNDECL)
       This hook returns the va_list type of the calling convention
       specified by FNDECL.  The default version of this hook returns
!      'va_list_type_node'.
  
   -- Target Hook: tree TARGET_CANONICAL_VA_LIST_TYPE (tree TYPE)
       This hook returns the va_list type of the calling convention
!      specified by the type of TYPE.  If TYPE is not a valid va_list
!      type, it returns 'NULL_TREE'.
  
   -- Target Hook: tree TARGET_GIMPLIFY_VA_ARG_EXPR (tree VALIST, tree
            TYPE, gimple_seq *PRE_P, gimple_seq *POST_P)
!      This hook performs target-specific gimplification of 'VA_ARG_EXPR'.
!      The first two parameters correspond to the arguments to 'va_arg';
!      the latter two are as in 'gimplify.c:gimplify_expr'.
  
   -- Target Hook: bool TARGET_VALID_POINTER_MODE (machine_mode MODE)
       Define this to return nonzero if the port can handle pointers with
       machine mode MODE.  The default version of this hook returns true
!      for both 'ptr_mode' and 'Pmode'.
  
   -- Target Hook: bool TARGET_REF_MAY_ALIAS_ERRNO (struct ao_ref *REF)
!      Define this to return nonzero if the memory reference REF may alias
!      with the system C library errno location.  The default version of
!      this hook assumes the system C library errno location is either a
!      declaration of type int or accessed by dereferencing a pointer to
!      int.
  
   -- Target Hook: bool TARGET_SCALAR_MODE_SUPPORTED_P (machine_mode MODE)
       Define this to return nonzero if the port is prepared to handle
       insns involving scalar mode MODE.  For a scalar mode to be
!      considered supported, all the basic arithmetic and comparisons must
!      work.
  
!      The default version of this hook returns true for any mode required
!      to handle the basic C types (as defined by the port).  Included
!      here are the double-word arithmetic supported by the code in
!      'optabs.c'.
  
   -- Target Hook: bool TARGET_VECTOR_MODE_SUPPORTED_P (machine_mode MODE)
       Define this to return nonzero if the port is prepared to handle
*************** the stack.
*** 32041,32047 ****
            unsigned HOST_WIDE_INT NELEMS)
       Return true if GCC should try to use a scalar mode to store an
       array of NELEMS elements, given that each element has mode MODE.
!      Returning true here overrides the usual `MAX_FIXED_MODE' limit and
       allows GCC to use any defined integer mode.
  
       One use of this hook is to support vector load and store operations
--- 31635,31641 ----
            unsigned HOST_WIDE_INT NELEMS)
       Return true if GCC should try to use a scalar mode to store an
       array of NELEMS elements, given that each element has mode MODE.
!      Returning true here overrides the usual 'MAX_FIXED_MODE' limit and
       allows GCC to use any defined integer mode.
  
       One use of this hook is to support vector load and store operations
*************** the stack.
*** 32057,32080 ****
              int8x8_t val[3];
            } int8x8x3_t;
  
!      If this hook allows `val' to have a scalar mode, then `int8x8x3_t'
!      can have the same mode.  GCC can then store `int8x8x3_t's in
       registers rather than forcing them onto the stack.
  
   -- Target Hook: bool TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
            (machine_mode MODE)
       Define this to return nonzero if libgcc provides support for the
       floating-point mode MODE, which is known to pass
!      `TARGET_SCALAR_MODE_SUPPORTED_P'.  The default version of this
!      hook returns true for all of `SFmode', `DFmode', `XFmode' and
!      `TFmode', if such modes exist.
  
   -- Target Hook: bool TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P
            (machine_mode MODE)
       Define this to return nonzero for machine modes for which the port
       has small register classes.  If this target hook returns nonzero
!      for a given MODE, the compiler will try to minimize the lifetime
!      of registers in MODE.  The hook may be called with `VOIDmode' as
       argument.  In this case, the hook is expected to return nonzero if
       it returns nonzero for any mode.
  
--- 31651,31674 ----
              int8x8_t val[3];
            } int8x8x3_t;
  
!      If this hook allows 'val' to have a scalar mode, then 'int8x8x3_t'
!      can have the same mode.  GCC can then store 'int8x8x3_t's in
       registers rather than forcing them onto the stack.
  
   -- Target Hook: bool TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P
            (machine_mode MODE)
       Define this to return nonzero if libgcc provides support for the
       floating-point mode MODE, which is known to pass
!      'TARGET_SCALAR_MODE_SUPPORTED_P'.  The default version of this hook
!      returns true for all of 'SFmode', 'DFmode', 'XFmode' and 'TFmode',
!      if such modes exist.
  
   -- Target Hook: bool TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P
            (machine_mode MODE)
       Define this to return nonzero for machine modes for which the port
       has small register classes.  If this target hook returns nonzero
!      for a given MODE, the compiler will try to minimize the lifetime of
!      registers in MODE.  The hook may be called with 'VOIDmode' as
       argument.  In this case, the hook is expected to return nonzero if
       it returns nonzero for any mode.
  
*************** the stack.
*** 32088,32107 ****
       in an instruction, but the machine modes of the registers set or
       used in the instruction are already known.  And for some machines,
       register classes are small for, say, integer registers but not for
!      floating point registers.  For example, the AMD x86-64
!      architecture requires specific registers for the legacy x86
!      integer instructions, but there are many SSE registers for
!      floating point operations.  On such targets, a good strategy may
!      be to return nonzero from this hook for `INTEGRAL_MODE_P' machine
!      modes but zero for the SSE register classes.
  
!      The default version of this hook returns false for any mode.  It
!      is always safe to redefine this hook to return with a nonzero
!      value.  But if you unnecessarily define it, you will reduce the
!      amount of optimizations that can be performed in some cases.  If
!      you do not define this hook to return a nonzero value when it is
!      required, the compiler will run out of spill registers and print a
!      fatal error message.
  
  
  File: gccint.info,  Node: Scalar Return,  Next: Aggregate Return,  Prev: Register Arguments,  Up: Stack and Calling
--- 31682,31701 ----
       in an instruction, but the machine modes of the registers set or
       used in the instruction are already known.  And for some machines,
       register classes are small for, say, integer registers but not for
!      floating point registers.  For example, the AMD x86-64 architecture
!      requires specific registers for the legacy x86 integer
!      instructions, but there are many SSE registers for floating point
!      operations.  On such targets, a good strategy may be to return
!      nonzero from this hook for 'INTEGRAL_MODE_P' machine modes but zero
!      for the SSE register classes.
  
!      The default version of this hook returns false for any mode.  It is
!      always safe to redefine this hook to return with a nonzero value.
!      But if you unnecessarily define it, you will reduce the amount of
!      optimizations that can be performed in some cases.  If you do not
!      define this hook to return a nonzero value when it is required, the
!      compiler will run out of spill registers and print a fatal error
!      message.
  
  
  File: gccint.info,  Node: Scalar Return,  Next: Aggregate Return,  Prev: Register Arguments,  Up: Stack and Calling
*************** values--values that can fit in registers
*** 32114,32161 ****
  
   -- Target Hook: rtx TARGET_FUNCTION_VALUE (const_tree RET_TYPE,
            const_tree FN_DECL_OR_TYPE, bool OUTGOING)
       Define this to return an RTX representing the place where a
       function returns or receives a value of data type RET_TYPE, a tree
       node representing a data type.  FN_DECL_OR_TYPE is a tree node
!      representing `FUNCTION_DECL' or `FUNCTION_TYPE' of a function
!      being called.  If OUTGOING is false, the hook should compute the
!      register in which the caller will see the return value.
!      Otherwise, the hook should return an RTX representing the place
!      where a function returns a value.
  
!      On many machines, only `TYPE_MODE (RET_TYPE)' is relevant.
       (Actually, on most machines, scalar values are returned in the same
       place regardless of mode.)  The value of the expression is usually
!      a `reg' RTX for the hard register where the return value is stored.
!      The value can also be a `parallel' RTX, if the return value is in
!      multiple places.  See `TARGET_FUNCTION_ARG' for an explanation of
!      the `parallel' form.   Note that the callee will populate every
!      location specified in the `parallel', but if the first element of
!      the `parallel' contains the whole return value, callers will use
       that element as the canonical location and ignore the others.  The
!      m68k port uses this type of `parallel' to return pointers in both
!      `%a0' (the canonical location) and `%d0'.
  
!      If `TARGET_PROMOTE_FUNCTION_RETURN' returns true, you must apply
!      the same promotion rules specified in `PROMOTE_MODE' if VALTYPE is
       a scalar type.
  
       If the precise function being called is known, FUNC is a tree node
!      (`FUNCTION_DECL') for it; otherwise, FUNC is a null pointer.  This
!      makes it possible to use a different value-returning convention
!      for specific functions when all their calls are known.
  
       Some target machines have "register windows" so that the register
!      in which a function returns its value is not the same as the one
!      in which the caller sees the value.  For such machines, you should
       return different RTX depending on OUTGOING.
  
!      `TARGET_FUNCTION_VALUE' is not used for return values with
       aggregate data types, because these are returned in another way.
!      See `TARGET_STRUCT_VALUE_RTX' and related macros, below.
  
   -- Macro: FUNCTION_VALUE (VALTYPE, FUNC)
!      This macro has been deprecated.  Use `TARGET_FUNCTION_VALUE' for a
       new target instead.
  
   -- Macro: LIBCALL_VALUE (MODE)
--- 31708,31756 ----
  
   -- Target Hook: rtx TARGET_FUNCTION_VALUE (const_tree RET_TYPE,
            const_tree FN_DECL_OR_TYPE, bool OUTGOING)
+ 
       Define this to return an RTX representing the place where a
       function returns or receives a value of data type RET_TYPE, a tree
       node representing a data type.  FN_DECL_OR_TYPE is a tree node
!      representing 'FUNCTION_DECL' or 'FUNCTION_TYPE' of a function being
!      called.  If OUTGOING is false, the hook should compute the register
!      in which the caller will see the return value.  Otherwise, the hook
!      should return an RTX representing the place where a function
!      returns a value.
  
!      On many machines, only 'TYPE_MODE (RET_TYPE)' is relevant.
       (Actually, on most machines, scalar values are returned in the same
       place regardless of mode.)  The value of the expression is usually
!      a 'reg' RTX for the hard register where the return value is stored.
!      The value can also be a 'parallel' RTX, if the return value is in
!      multiple places.  See 'TARGET_FUNCTION_ARG' for an explanation of
!      the 'parallel' form.  Note that the callee will populate every
!      location specified in the 'parallel', but if the first element of
!      the 'parallel' contains the whole return value, callers will use
       that element as the canonical location and ignore the others.  The
!      m68k port uses this type of 'parallel' to return pointers in both
!      '%a0' (the canonical location) and '%d0'.
  
!      If 'TARGET_PROMOTE_FUNCTION_RETURN' returns true, you must apply
!      the same promotion rules specified in 'PROMOTE_MODE' if VALTYPE is
       a scalar type.
  
       If the precise function being called is known, FUNC is a tree node
!      ('FUNCTION_DECL') for it; otherwise, FUNC is a null pointer.  This
!      makes it possible to use a different value-returning convention for
!      specific functions when all their calls are known.
  
       Some target machines have "register windows" so that the register
!      in which a function returns its value is not the same as the one in
!      which the caller sees the value.  For such machines, you should
       return different RTX depending on OUTGOING.
  
!      'TARGET_FUNCTION_VALUE' is not used for return values with
       aggregate data types, because these are returned in another way.
!      See 'TARGET_STRUCT_VALUE_RTX' and related macros, below.
  
   -- Macro: FUNCTION_VALUE (VALTYPE, FUNC)
!      This macro has been deprecated.  Use 'TARGET_FUNCTION_VALUE' for a
       new target instead.
  
   -- Macro: LIBCALL_VALUE (MODE)
*************** values--values that can fit in registers
*** 32185,32191 ****
       register in which the values of called function may come back.
  
       A register whose use for returning values is limited to serving as
!      the second of a pair (for a value of type `double', say) need not
       be recognized by this macro.  So for most machines, this definition
       suffices:
  
--- 31780,31786 ----
       register in which the values of called function may come back.
  
       A register whose use for returning values is limited to serving as
!      the second of a pair (for a value of type 'double', say) need not
       be recognized by this macro.  So for most machines, this definition
       suffices:
  
*************** values--values that can fit in registers
*** 32196,32210 ****
       macro should recognize only the caller's register numbers.
  
       This macro has been deprecated.  Use
!      `TARGET_FUNCTION_VALUE_REGNO_P' for a new target instead.
  
   -- Target Hook: bool TARGET_FUNCTION_VALUE_REGNO_P (const unsigned int
            REGNO)
!      A target hook that return `true' if REGNO is the number of a hard
       register in which the values of called function may come back.
  
       A register whose use for returning values is limited to serving as
!      the second of a pair (for a value of type `double', say) need not
       be recognized by this target hook.
  
       If the machine has register windows, so that the caller and the
--- 31791,31805 ----
       macro should recognize only the caller's register numbers.
  
       This macro has been deprecated.  Use
!      'TARGET_FUNCTION_VALUE_REGNO_P' for a new target instead.
  
   -- Target Hook: bool TARGET_FUNCTION_VALUE_REGNO_P (const unsigned int
            REGNO)
!      A target hook that return 'true' if REGNO is the number of a hard
       register in which the values of called function may come back.
  
       A register whose use for returning values is limited to serving as
!      the second of a pair (for a value of type 'double', say) need not
       be recognized by this target hook.
  
       If the machine has register windows, so that the caller and the
*************** values--values that can fit in registers
*** 32215,32242 ****
       used.
  
   -- Macro: APPLY_RESULT_SIZE
!      Define this macro if `untyped_call' and `untyped_return' need more
!      space than is implied by `FUNCTION_VALUE_REGNO_P' for saving and
       restoring an arbitrary return value.
  
   -- Target Hook: bool TARGET_OMIT_STRUCT_RETURN_REG
       Normally, when a function returns a structure by memory, the
       address is passed as an invisible pointer argument, but the
!      compiler also arranges to return the address from the function
!      like it would a normal pointer return value.  Define this to true
!      if that behavior is undesirable on your target.
  
   -- Target Hook: bool TARGET_RETURN_IN_MSB (const_tree TYPE)
!      This hook should return true if values of type TYPE are returned
!      at the most significant end of a register (in other words, if they
!      are padded at the least significant end).  You can assume that TYPE
!      is returned in a register; the caller is required to check this.
  
!      Note that the register provided by `TARGET_FUNCTION_VALUE' must be
       able to hold the complete return value.  For example, if a 1-, 2-
       or 3-byte structure is returned at the most significant end of a
!      4-byte register, `TARGET_FUNCTION_VALUE' should provide an
!      `SImode' rtx.
  
  
  File: gccint.info,  Node: Aggregate Return,  Next: Caller Saves,  Prev: Scalar Return,  Up: Stack and Calling
--- 31810,31837 ----
       used.
  
   -- Macro: APPLY_RESULT_SIZE
!      Define this macro if 'untyped_call' and 'untyped_return' need more
!      space than is implied by 'FUNCTION_VALUE_REGNO_P' for saving and
       restoring an arbitrary return value.
  
   -- Target Hook: bool TARGET_OMIT_STRUCT_RETURN_REG
       Normally, when a function returns a structure by memory, the
       address is passed as an invisible pointer argument, but the
!      compiler also arranges to return the address from the function like
!      it would a normal pointer return value.  Define this to true if
!      that behavior is undesirable on your target.
  
   -- Target Hook: bool TARGET_RETURN_IN_MSB (const_tree TYPE)
!      This hook should return true if values of type TYPE are returned at
!      the most significant end of a register (in other words, if they are
!      padded at the least significant end).  You can assume that TYPE is
!      returned in a register; the caller is required to check this.
  
!      Note that the register provided by 'TARGET_FUNCTION_VALUE' must be
       able to hold the complete return value.  For example, if a 1-, 2-
       or 3-byte structure is returned at the most significant end of a
!      4-byte register, 'TARGET_FUNCTION_VALUE' should provide an 'SImode'
!      rtx.
  
  
  File: gccint.info,  Node: Aggregate Return,  Next: Caller Saves,  Prev: Scalar Return,  Up: Stack and Calling
*************** File: gccint.info,  Node: Aggregate Retu
*** 32244,32253 ****
  17.9.9 How Large Values Are Returned
  ------------------------------------
  
! When a function value's mode is `BLKmode' (and in some other cases),
! the value is not returned according to `TARGET_FUNCTION_VALUE' (*note
! Scalar Return::).  Instead, the caller passes the address of a block of
! memory in which the value should be stored.  This address is called the
  "structure value address".
  
   This section describes how to control returning structure values in
--- 31839,31848 ----
  17.9.9 How Large Values Are Returned
  ------------------------------------
  
! When a function value's mode is 'BLKmode' (and in some other cases), the
! value is not returned according to 'TARGET_FUNCTION_VALUE' (*note Scalar
! Return::).  Instead, the caller passes the address of a block of memory
! in which the value should be stored.  This address is called the
  "structure value address".
  
   This section describes how to control returning structure values in
*************** memory.
*** 32258,32306 ****
       This target hook should return a nonzero value to say to return the
       function value in memory, just as large structures are always
       returned.  Here TYPE will be the data type of the value, and FNTYPE
!      will be the type of the function doing the returning, or `NULL' for
       libcalls.
  
!      Note that values of mode `BLKmode' must be explicitly handled by
!      this function.  Also, the option `-fpcc-struct-return' takes
!      effect regardless of this macro.  On most systems, it is possible
!      to leave the hook undefined; this causes a default definition to
!      be used, whose value is the constant 1 for `BLKmode' values, and 0
       otherwise.
  
       Do not use this hook to indicate that structures and unions should
       always be returned in memory.  You should instead use
!      `DEFAULT_PCC_STRUCT_RETURN' to indicate this.
  
   -- Macro: DEFAULT_PCC_STRUCT_RETURN
       Define this macro to be 1 if all structure and union return values
       must be in memory.  Since this results in slower code, this should
!      be defined only if needed for compatibility with other compilers
!      or with an ABI.  If you define this macro to be 0, then the
       conventions used for structure and union return values are decided
!      by the `TARGET_RETURN_IN_MEMORY' target hook.
  
       If not defined, this defaults to the value 1.
  
   -- Target Hook: rtx TARGET_STRUCT_VALUE_RTX (tree FNDECL, int INCOMING)
       This target hook should return the location of the structure value
!      address (normally a `mem' or `reg'), or 0 if the address is passed
!      as an "invisible" first argument.  Note that FNDECL may be `NULL',
       for libcalls.  You do not need to define this target hook if the
       address is always passed as an "invisible" first argument.
  
       On some architectures the place where the structure value address
       is found by the called function is not the same place that the
!      caller put it.  This can be due to register windows, or it could
!      be because the function prologue moves it to a different place.
!      INCOMING is `1' or `2' when the location is needed in the context
!      of the called function, and `0' in the context of the caller.
  
!      If INCOMING is nonzero and the address is to be found on the
!      stack, return a `mem' which refers to the frame pointer. If
!      INCOMING is `2', the result is being used to fetch the structure
!      value address at the beginning of a function.  If you need to emit
!      adjusting code, you should do it at this point.
  
   -- Macro: PCC_STATIC_STRUCT_RETURN
       Define this macro if the usual system convention on the target
--- 31853,31901 ----
       This target hook should return a nonzero value to say to return the
       function value in memory, just as large structures are always
       returned.  Here TYPE will be the data type of the value, and FNTYPE
!      will be the type of the function doing the returning, or 'NULL' for
       libcalls.
  
!      Note that values of mode 'BLKmode' must be explicitly handled by
!      this function.  Also, the option '-fpcc-struct-return' takes effect
!      regardless of this macro.  On most systems, it is possible to leave
!      the hook undefined; this causes a default definition to be used,
!      whose value is the constant 1 for 'BLKmode' values, and 0
       otherwise.
  
       Do not use this hook to indicate that structures and unions should
       always be returned in memory.  You should instead use
!      'DEFAULT_PCC_STRUCT_RETURN' to indicate this.
  
   -- Macro: DEFAULT_PCC_STRUCT_RETURN
       Define this macro to be 1 if all structure and union return values
       must be in memory.  Since this results in slower code, this should
!      be defined only if needed for compatibility with other compilers or
!      with an ABI.  If you define this macro to be 0, then the
       conventions used for structure and union return values are decided
!      by the 'TARGET_RETURN_IN_MEMORY' target hook.
  
       If not defined, this defaults to the value 1.
  
   -- Target Hook: rtx TARGET_STRUCT_VALUE_RTX (tree FNDECL, int INCOMING)
       This target hook should return the location of the structure value
!      address (normally a 'mem' or 'reg'), or 0 if the address is passed
!      as an "invisible" first argument.  Note that FNDECL may be 'NULL',
       for libcalls.  You do not need to define this target hook if the
       address is always passed as an "invisible" first argument.
  
       On some architectures the place where the structure value address
       is found by the called function is not the same place that the
!      caller put it.  This can be due to register windows, or it could be
!      because the function prologue moves it to a different place.
!      INCOMING is '1' or '2' when the location is needed in the context
!      of the called function, and '0' in the context of the caller.
  
!      If INCOMING is nonzero and the address is to be found on the stack,
!      return a 'mem' which refers to the frame pointer.  If INCOMING is
!      '2', the result is being used to fetch the structure value address
!      at the beginning of a function.  If you need to emit adjusting
!      code, you should do it at this point.
  
   -- Macro: PCC_STATIC_STRUCT_RETURN
       Define this macro if the usual system convention on the target
*************** memory.
*** 32308,32328 ****
       function to return the address of a static variable containing the
       value.
  
!      Do not define this if the usual system convention is for the
!      caller to pass an address to the subroutine.
  
!      This macro has effect in `-fpcc-struct-return' mode, but it does
!      nothing when you use `-freg-struct-return' mode.
  
   -- Target Hook: machine_mode TARGET_GET_RAW_RESULT_MODE (int REGNO)
       This target hook returns the mode to be used when accessing raw
!      return registers in `__builtin_return'.  Define this macro if the
       value in REG_RAW_MODE is not correct.
  
   -- Target Hook: machine_mode TARGET_GET_RAW_ARG_MODE (int REGNO)
       This target hook returns the mode to be used when accessing raw
!      argument registers in `__builtin_apply_args'.  Define this macro
!      if the value in REG_RAW_MODE is not correct.
  
  
  File: gccint.info,  Node: Caller Saves,  Next: Function Entry,  Prev: Aggregate Return,  Up: Stack and Calling
--- 31903,31923 ----
       function to return the address of a static variable containing the
       value.
  
!      Do not define this if the usual system convention is for the caller
!      to pass an address to the subroutine.
  
!      This macro has effect in '-fpcc-struct-return' mode, but it does
!      nothing when you use '-freg-struct-return' mode.
  
   -- Target Hook: machine_mode TARGET_GET_RAW_RESULT_MODE (int REGNO)
       This target hook returns the mode to be used when accessing raw
!      return registers in '__builtin_return'.  Define this macro if the
       value in REG_RAW_MODE is not correct.
  
   -- Target Hook: machine_mode TARGET_GET_RAW_ARG_MODE (int REGNO)
       This target hook returns the mode to be used when accessing raw
!      argument registers in '__builtin_apply_args'.  Define this macro if
!      the value in REG_RAW_MODE is not correct.
  
  
  File: gccint.info,  Node: Caller Saves,  Next: Function Entry,  Prev: Aggregate Return,  Up: Stack and Calling
*************** must live across calls.
*** 32337,32345 ****
   -- Macro: HARD_REGNO_CALLER_SAVE_MODE (REGNO, NREGS)
       A C expression specifying which mode is required for saving NREGS
       of a pseudo-register in call-clobbered hard register REGNO.  If
!      REGNO is unsuitable for caller save, `VOIDmode' should be
!      returned.  For most machines this macro need not be defined since
!      GCC will select the smallest suitable mode.
  
  
  File: gccint.info,  Node: Function Entry,  Next: Profiling,  Prev: Caller Saves,  Up: Stack and Calling
--- 31932,31940 ----
   -- Macro: HARD_REGNO_CALLER_SAVE_MODE (REGNO, NREGS)
       A C expression specifying which mode is required for saving NREGS
       of a pseudo-register in call-clobbered hard register REGNO.  If
!      REGNO is unsuitable for caller save, 'VOIDmode' should be returned.
!      For most machines this macro need not be defined since GCC will
!      select the smallest suitable mode.
  
  
  File: gccint.info,  Node: Function Entry,  Next: Profiling,  Prev: Caller Saves,  Up: Stack and Calling
*************** This section describes the macros that o
*** 32352,32393 ****
  
   -- Target Hook: void TARGET_ASM_FUNCTION_PROLOGUE (FILE *FILE,
            HOST_WIDE_INT SIZE)
!      If defined, a function that outputs the assembler code for entry
!      to a function.  The prologue is responsible for setting up the
!      stack frame, initializing the frame pointer register, saving
!      registers that must be saved, and allocating SIZE additional bytes
!      of storage for the local variables.  SIZE is an integer.  FILE is
!      a stdio stream to which the assembler code should be output.
  
       The label for the beginning of the function need not be output by
       this macro.  That has already been done when the macro is run.
  
       To determine which registers to save, the macro can refer to the
!      array `regs_ever_live': element R is nonzero if hard register R is
       used anywhere within the function.  This implies the function
       prologue should save register R, provided it is not one of the
!      call-used registers.  (`TARGET_ASM_FUNCTION_EPILOGUE' must
!      likewise use `regs_ever_live'.)
  
       On machines that have "register windows", the function entry code
       does not save on the stack the registers that are in the windows,
       even if they are supposed to be preserved by function calls;
!      instead it takes appropriate steps to "push" the register stack,
!      if any non-call-used registers are used in the function.
  
       On machines where functions may or may not have frame-pointers, the
       function entry code must vary accordingly; it must set up the frame
       pointer if one is wanted, and not otherwise.  To determine whether
       a frame pointer is in wanted, the macro can refer to the variable
!      `frame_pointer_needed'.  The variable's value will be 1 at run
!      time in a function that needs a frame pointer.  *Note
!      Elimination::.
  
       The function entry code is responsible for allocating any stack
       space required for the function.  This stack space consists of the
       regions listed below.  In most cases, these regions are allocated
!      in the order listed, with the last listed region closest to the
!      top of the stack (the lowest address if `STACK_GROWS_DOWNWARD' is
       defined, and the highest address if it is not defined).  You can
       use a different order for a machine if doing so is more convenient
       or required for compatibility reasons.  Except in cases where
--- 31947,31987 ----
  
   -- Target Hook: void TARGET_ASM_FUNCTION_PROLOGUE (FILE *FILE,
            HOST_WIDE_INT SIZE)
!      If defined, a function that outputs the assembler code for entry to
!      a function.  The prologue is responsible for setting up the stack
!      frame, initializing the frame pointer register, saving registers
!      that must be saved, and allocating SIZE additional bytes of storage
!      for the local variables.  SIZE is an integer.  FILE is a stdio
!      stream to which the assembler code should be output.
  
       The label for the beginning of the function need not be output by
       this macro.  That has already been done when the macro is run.
  
       To determine which registers to save, the macro can refer to the
!      array 'regs_ever_live': element R is nonzero if hard register R is
       used anywhere within the function.  This implies the function
       prologue should save register R, provided it is not one of the
!      call-used registers.  ('TARGET_ASM_FUNCTION_EPILOGUE' must likewise
!      use 'regs_ever_live'.)
  
       On machines that have "register windows", the function entry code
       does not save on the stack the registers that are in the windows,
       even if they are supposed to be preserved by function calls;
!      instead it takes appropriate steps to "push" the register stack, if
!      any non-call-used registers are used in the function.
  
       On machines where functions may or may not have frame-pointers, the
       function entry code must vary accordingly; it must set up the frame
       pointer if one is wanted, and not otherwise.  To determine whether
       a frame pointer is in wanted, the macro can refer to the variable
!      'frame_pointer_needed'.  The variable's value will be 1 at run time
!      in a function that needs a frame pointer.  *Note Elimination::.
  
       The function entry code is responsible for allocating any stack
       space required for the function.  This stack space consists of the
       regions listed below.  In most cases, these regions are allocated
!      in the order listed, with the last listed region closest to the top
!      of the stack (the lowest address if 'STACK_GROWS_DOWNWARD' is
       defined, and the highest address if it is not defined).  You can
       use a different order for a machine if doing so is more convenient
       or required for compatibility reasons.  Except in cases where
*************** This section describes the macros that o
*** 32411,32467 ****
            HOST_WIDE_INT SIZE)
       If defined, a function that outputs the assembler code for exit
       from a function.  The epilogue is responsible for restoring the
!      saved registers and stack pointer to their values when the
!      function was called, and returning control to the caller.  This
!      macro takes the same arguments as the macro
!      `TARGET_ASM_FUNCTION_PROLOGUE', and the registers to restore are
!      determined from `regs_ever_live' and `CALL_USED_REGISTERS' in the
!      same way.
  
       On some machines, there is a single instruction that does all the
       work of returning from the function.  On these machines, give that
!      instruction the name `return' and do not define the macro
!      `TARGET_ASM_FUNCTION_EPILOGUE' at all.
  
!      Do not define a pattern named `return' if you want the
!      `TARGET_ASM_FUNCTION_EPILOGUE' to be used.  If you want the target
       switches to control whether return instructions or epilogues are
!      used, define a `return' pattern with a validity condition that
!      tests the target switches appropriately.  If the `return'
!      pattern's validity condition is false, epilogues will be used.
  
       On machines where functions may or may not have frame-pointers, the
       function exit code must vary accordingly.  Sometimes the code for
       these two cases is completely different.  To determine whether a
       frame pointer is wanted, the macro can refer to the variable
!      `frame_pointer_needed'.  The variable's value will be 1 when
       compiling a function that needs a frame pointer.
  
!      Normally, `TARGET_ASM_FUNCTION_PROLOGUE' and
!      `TARGET_ASM_FUNCTION_EPILOGUE' must treat leaf functions specially.
!      The C variable `current_function_is_leaf' is nonzero for such a
       function.  *Note Leaf Functions::.
  
       On some machines, some functions pop their arguments on exit while
       others leave that for the caller to do.  For example, the 68020
!      when given `-mrtd' pops arguments in functions that take a fixed
       number of arguments.
  
!      Your definition of the macro `RETURN_POPS_ARGS' decides which
!      functions pop their own arguments.  `TARGET_ASM_FUNCTION_EPILOGUE'
       needs to know what was decided.  The number of bytes of the current
       function's arguments that this function should pop is available in
!      `crtl->args.pops_args'.  *Note Scalar Return::.
  
!    * A region of `crtl->args.pretend_args_size' bytes of uninitialized
       space just underneath the first argument arriving on the stack.
!      (This may not be at the very start of the allocated stack region
!      if the calling sequence has pushed anything else since pushing the
       stack arguments.  But usually, on such machines, nothing else has
       been pushed yet, because the function prologue itself does all the
!      pushing.)  This region is used on machines where an argument may
!      be passed partly in registers and partly in memory, and, in some
!      cases to support the features in `<stdarg.h>'.
  
     * An area of memory used to save certain registers used by the
       function.  The size of this area, which may also include space for
--- 32005,32060 ----
            HOST_WIDE_INT SIZE)
       If defined, a function that outputs the assembler code for exit
       from a function.  The epilogue is responsible for restoring the
!      saved registers and stack pointer to their values when the function
!      was called, and returning control to the caller.  This macro takes
!      the same arguments as the macro 'TARGET_ASM_FUNCTION_PROLOGUE', and
!      the registers to restore are determined from 'regs_ever_live' and
!      'CALL_USED_REGISTERS' in the same way.
  
       On some machines, there is a single instruction that does all the
       work of returning from the function.  On these machines, give that
!      instruction the name 'return' and do not define the macro
!      'TARGET_ASM_FUNCTION_EPILOGUE' at all.
  
!      Do not define a pattern named 'return' if you want the
!      'TARGET_ASM_FUNCTION_EPILOGUE' to be used.  If you want the target
       switches to control whether return instructions or epilogues are
!      used, define a 'return' pattern with a validity condition that
!      tests the target switches appropriately.  If the 'return' pattern's
!      validity condition is false, epilogues will be used.
  
       On machines where functions may or may not have frame-pointers, the
       function exit code must vary accordingly.  Sometimes the code for
       these two cases is completely different.  To determine whether a
       frame pointer is wanted, the macro can refer to the variable
!      'frame_pointer_needed'.  The variable's value will be 1 when
       compiling a function that needs a frame pointer.
  
!      Normally, 'TARGET_ASM_FUNCTION_PROLOGUE' and
!      'TARGET_ASM_FUNCTION_EPILOGUE' must treat leaf functions specially.
!      The C variable 'current_function_is_leaf' is nonzero for such a
       function.  *Note Leaf Functions::.
  
       On some machines, some functions pop their arguments on exit while
       others leave that for the caller to do.  For example, the 68020
!      when given '-mrtd' pops arguments in functions that take a fixed
       number of arguments.
  
!      Your definition of the macro 'RETURN_POPS_ARGS' decides which
!      functions pop their own arguments.  'TARGET_ASM_FUNCTION_EPILOGUE'
       needs to know what was decided.  The number of bytes of the current
       function's arguments that this function should pop is available in
!      'crtl->args.pops_args'.  *Note Scalar Return::.
  
!    * A region of 'crtl->args.pretend_args_size' bytes of uninitialized
       space just underneath the first argument arriving on the stack.
!      (This may not be at the very start of the allocated stack region if
!      the calling sequence has pushed anything else since pushing the
       stack arguments.  But usually, on such machines, nothing else has
       been pushed yet, because the function prologue itself does all the
!      pushing.)  This region is used on machines where an argument may be
!      passed partly in registers and partly in memory, and, in some cases
!      to support the features in '<stdarg.h>'.
  
     * An area of memory used to save certain registers used by the
       function.  The size of this area, which may also include space for
*************** This section describes the macros that o
*** 32476,32483 ****
       occur in the opposite order, with the save area closer to the top
       of the stack.
  
!    * Optionally, when `ACCUMULATE_OUTGOING_ARGS' is defined, a region of
!      `crtl->outgoing_args_size' bytes to be used for outgoing argument
       lists of the function.  *Note Stack Arguments::.
  
   -- Macro: EXIT_IGNORE_STACK
--- 32069,32076 ----
       occur in the opposite order, with the save area closer to the top
       of the stack.
  
!    * Optionally, when 'ACCUMULATE_OUTGOING_ARGS' is defined, a region of
!      'crtl->outgoing_args_size' bytes to be used for outgoing argument
       lists of the function.  *Note Stack Arguments::.
  
   -- Macro: EXIT_IGNORE_STACK
*************** This section describes the macros that o
*** 32489,32511 ****
  
       Note that this macro's value is relevant only for functions for
       which frame pointers are maintained.  It is never safe to delete a
!      final stack adjustment in a function that has no frame pointer,
!      and the compiler knows this regardless of `EXIT_IGNORE_STACK'.
  
   -- Macro: EPILOGUE_USES (REGNO)
       Define this macro as a C expression that is nonzero for registers
!      that are used by the epilogue or the `return' pattern.  The stack
       and frame pointer registers are already assumed to be used as
       needed.
  
   -- Macro: EH_USES (REGNO)
       Define this macro as a C expression that is nonzero for registers
!      that are used by the exception handling mechanism, and so should
!      be considered live on entry to an exception edge.
  
   -- Target Hook: void TARGET_ASM_OUTPUT_MI_THUNK (FILE *FILE, tree
!           THUNK_FNDECL, HOST_WIDE_INT DELTA, HOST_WIDE_INT
!           VCALL_OFFSET, tree FUNCTION)
       A function that outputs the assembler code for a thunk function,
       used to implement C++ virtual function calls with multiple
       inheritance.  The thunk acts as a wrapper around a virtual
--- 32082,32104 ----
  
       Note that this macro's value is relevant only for functions for
       which frame pointers are maintained.  It is never safe to delete a
!      final stack adjustment in a function that has no frame pointer, and
!      the compiler knows this regardless of 'EXIT_IGNORE_STACK'.
  
   -- Macro: EPILOGUE_USES (REGNO)
       Define this macro as a C expression that is nonzero for registers
!      that are used by the epilogue or the 'return' pattern.  The stack
       and frame pointer registers are already assumed to be used as
       needed.
  
   -- Macro: EH_USES (REGNO)
       Define this macro as a C expression that is nonzero for registers
!      that are used by the exception handling mechanism, and so should be
!      considered live on entry to an exception edge.
  
   -- Target Hook: void TARGET_ASM_OUTPUT_MI_THUNK (FILE *FILE, tree
!           THUNK_FNDECL, HOST_WIDE_INT DELTA, HOST_WIDE_INT VCALL_OFFSET,
!           tree FUNCTION)
       A function that outputs the assembler code for a thunk function,
       used to implement C++ virtual function calls with multiple
       inheritance.  The thunk acts as a wrapper around a virtual
*************** This section describes the macros that o
*** 32514,32558 ****
  
       First, emit code to add the integer DELTA to the location that
       contains the incoming first argument.  Assume that this argument
!      contains a pointer, and is the one used to pass the `this' pointer
       in C++.  This is the incoming argument _before_ the function
!      prologue, e.g. `%o0' on a sparc.  The addition must preserve the
       values of all other incoming arguments.
  
       Then, if VCALL_OFFSET is nonzero, an additional adjustment should
!      be made after adding `delta'.  In particular, if P is the adjusted
       pointer, the following adjustment should be made:
  
            p += (*((ptrdiff_t **)p))[vcall_offset/sizeof(ptrdiff_t)]
  
       After the additions, emit code to jump to FUNCTION, which is a
!      `FUNCTION_DECL'.  This is a direct pure jump, not a call, and does
       not touch the return address.  Hence returning from FUNCTION will
!      return to whoever called the current `thunk'.
  
!      The effect must be as if FUNCTION had been called directly with
!      the adjusted first argument.  This macro is responsible for
!      emitting all of the code for a thunk function;
!      `TARGET_ASM_FUNCTION_PROLOGUE' and `TARGET_ASM_FUNCTION_EPILOGUE'
       are not invoked.
  
       The THUNK_FNDECL is redundant.  (DELTA and FUNCTION have already
       been extracted from it.)  It might possibly be useful on some
       targets, but probably not.
  
!      If you do not define this macro, the target-independent code in
!      the C++ front end will generate a less efficient heavyweight thunk
!      that calls FUNCTION instead of jumping to it.  The generic
!      approach does not support varargs.
  
   -- Target Hook: bool TARGET_ASM_CAN_OUTPUT_MI_THUNK (const_tree
!           THUNK_FNDECL, HOST_WIDE_INT DELTA, HOST_WIDE_INT
!           VCALL_OFFSET, const_tree FUNCTION)
!      A function that returns true if TARGET_ASM_OUTPUT_MI_THUNK would
!      be able to output the assembler code for the thunk function
!      specified by the arguments it is passed, and false otherwise.  In
!      the latter case, the generic approach will be used by the C++
!      front end, with the limitations previously exposed.
  
  
  File: gccint.info,  Node: Profiling,  Next: Tail Calls,  Prev: Function Entry,  Up: Stack and Calling
--- 32107,32151 ----
  
       First, emit code to add the integer DELTA to the location that
       contains the incoming first argument.  Assume that this argument
!      contains a pointer, and is the one used to pass the 'this' pointer
       in C++.  This is the incoming argument _before_ the function
!      prologue, e.g. '%o0' on a sparc.  The addition must preserve the
       values of all other incoming arguments.
  
       Then, if VCALL_OFFSET is nonzero, an additional adjustment should
!      be made after adding 'delta'.  In particular, if P is the adjusted
       pointer, the following adjustment should be made:
  
            p += (*((ptrdiff_t **)p))[vcall_offset/sizeof(ptrdiff_t)]
  
       After the additions, emit code to jump to FUNCTION, which is a
!      'FUNCTION_DECL'.  This is a direct pure jump, not a call, and does
       not touch the return address.  Hence returning from FUNCTION will
!      return to whoever called the current 'thunk'.
  
!      The effect must be as if FUNCTION had been called directly with the
!      adjusted first argument.  This macro is responsible for emitting
!      all of the code for a thunk function;
!      'TARGET_ASM_FUNCTION_PROLOGUE' and 'TARGET_ASM_FUNCTION_EPILOGUE'
       are not invoked.
  
       The THUNK_FNDECL is redundant.  (DELTA and FUNCTION have already
       been extracted from it.)  It might possibly be useful on some
       targets, but probably not.
  
!      If you do not define this macro, the target-independent code in the
!      C++ front end will generate a less efficient heavyweight thunk that
!      calls FUNCTION instead of jumping to it.  The generic approach does
!      not support varargs.
  
   -- Target Hook: bool TARGET_ASM_CAN_OUTPUT_MI_THUNK (const_tree
!           THUNK_FNDECL, HOST_WIDE_INT DELTA, HOST_WIDE_INT VCALL_OFFSET,
!           const_tree FUNCTION)
!      A function that returns true if TARGET_ASM_OUTPUT_MI_THUNK would be
!      able to output the assembler code for the thunk function specified
!      by the arguments it is passed, and false otherwise.  In the latter
!      case, the generic approach will be used by the C++ front end, with
!      the limitations previously exposed.
  
  
  File: gccint.info,  Node: Profiling,  Next: Tail Calls,  Prev: Function Entry,  Up: Stack and Calling
*************** These macros will help you generate code
*** 32564,32592 ****
  
   -- Macro: FUNCTION_PROFILER (FILE, LABELNO)
       A C statement or compound statement to output to FILE some
!      assembler code to call the profiling subroutine `mcount'.
  
!      The details of how `mcount' expects to be called are determined by
       your operating system environment, not by GCC.  To figure them out,
       compile a small program for profiling using the system's installed
       C compiler and look at the assembler code that results.
  
!      Older implementations of `mcount' expect the address of a counter
       variable to be loaded into some register.  The name of this
!      variable is `LP' followed by the number LABELNO, so you would
!      generate the name using `LP%d' in a `fprintf'.
  
   -- Macro: PROFILE_HOOK
       A C statement or compound statement to output to FILE some assembly
!      code to call the profiling subroutine `mcount' even the target does
       not support profiling.
  
   -- Macro: NO_PROFILE_COUNTERS
       Define this macro to be an expression with a nonzero value if the
!      `mcount' subroutine on your system does not need a counter variable
       allocated for each function.  This is true for almost all modern
       implementations.  If you define this macro, you must not use the
!      LABELNO argument to `FUNCTION_PROFILER'.
  
   -- Macro: PROFILE_BEFORE_PROLOGUE
       Define this macro if the code for function profiling should come
--- 32157,32185 ----
  
   -- Macro: FUNCTION_PROFILER (FILE, LABELNO)
       A C statement or compound statement to output to FILE some
!      assembler code to call the profiling subroutine 'mcount'.
  
!      The details of how 'mcount' expects to be called are determined by
       your operating system environment, not by GCC.  To figure them out,
       compile a small program for profiling using the system's installed
       C compiler and look at the assembler code that results.
  
!      Older implementations of 'mcount' expect the address of a counter
       variable to be loaded into some register.  The name of this
!      variable is 'LP' followed by the number LABELNO, so you would
!      generate the name using 'LP%d' in a 'fprintf'.
  
   -- Macro: PROFILE_HOOK
       A C statement or compound statement to output to FILE some assembly
!      code to call the profiling subroutine 'mcount' even the target does
       not support profiling.
  
   -- Macro: NO_PROFILE_COUNTERS
       Define this macro to be an expression with a nonzero value if the
!      'mcount' subroutine on your system does not need a counter variable
       allocated for each function.  This is true for almost all modern
       implementations.  If you define this macro, you must not use the
!      LABELNO argument to 'FUNCTION_PROFILER'.
  
   -- Macro: PROFILE_BEFORE_PROLOGUE
       Define this macro if the code for function profiling should come
*************** These macros will help you generate code
*** 32594,32605 ****
       after.
  
   -- Target Hook: bool TARGET_KEEP_LEAF_WHEN_PROFILED (void)
!      This target hook returns true if the target wants the leaf flag
!      for the current function to stay true even if it calls mcount.
!      This might make sense for targets using the leaf flag only to
!      determine whether a stack frame needs to be generated or not and
!      for which the call to mcount is generated before the function
!      prologue.
  
  
  File: gccint.info,  Node: Tail Calls,  Next: Stack Smashing Protection,  Prev: Profiling,  Up: Stack and Calling
--- 32187,32197 ----
       after.
  
   -- Target Hook: bool TARGET_KEEP_LEAF_WHEN_PROFILED (void)
!      This target hook returns true if the target wants the leaf flag for
!      the current function to stay true even if it calls mcount.  This
!      might make sense for targets using the leaf flag only to determine
!      whether a stack frame needs to be generated or not and for which
!      the call to mcount is generated before the function prologue.
  
  
  File: gccint.info,  Node: Tail Calls,  Next: Stack Smashing Protection,  Prev: Profiling,  Up: Stack and Calling
*************** File: gccint.info,  Node: Tail Calls,  N
*** 32610,32634 ****
   -- Target Hook: bool TARGET_FUNCTION_OK_FOR_SIBCALL (tree DECL, tree
            EXP)
       True if it is OK to do sibling call optimization for the specified
!      call expression EXP.  DECL will be the called function, or `NULL'
       if this is an indirect call.
  
       It is not uncommon for limitations of calling conventions to
       prevent tail calls to functions outside the current unit of
       translation, or during PIC compilation.  The hook is used to
!      enforce these restrictions, as the `sibcall' md pattern can not
!      fail, or fall over to a "normal" call.  The criteria for
!      successful sibling call optimization may vary greatly between
!      different architectures.
  
   -- Target Hook: void TARGET_EXTRA_LIVE_ON_ENTRY (bitmap REGS)
       Add any hard registers to REGS that are live on entry to the
       function.  This hook only needs to be defined to provide registers
       that cannot be found by examination of FUNCTION_ARG_REGNO_P, the
       callee saved registers, STATIC_CHAIN_INCOMING_REGNUM,
!      STATIC_CHAIN_REGNUM, TARGET_STRUCT_VALUE_RTX,
!      FRAME_POINTER_REGNUM, EH_USES, FRAME_POINTER_REGNUM,
!      ARG_POINTER_REGNUM, and the PIC_OFFSET_TABLE_REGNUM.
  
   -- Target Hook: void TARGET_SET_UP_BY_PROLOGUE (struct
            hard_reg_set_container *)
--- 32202,32226 ----
   -- Target Hook: bool TARGET_FUNCTION_OK_FOR_SIBCALL (tree DECL, tree
            EXP)
       True if it is OK to do sibling call optimization for the specified
!      call expression EXP.  DECL will be the called function, or 'NULL'
       if this is an indirect call.
  
       It is not uncommon for limitations of calling conventions to
       prevent tail calls to functions outside the current unit of
       translation, or during PIC compilation.  The hook is used to
!      enforce these restrictions, as the 'sibcall' md pattern can not
!      fail, or fall over to a "normal" call.  The criteria for successful
!      sibling call optimization may vary greatly between different
!      architectures.
  
   -- Target Hook: void TARGET_EXTRA_LIVE_ON_ENTRY (bitmap REGS)
       Add any hard registers to REGS that are live on entry to the
       function.  This hook only needs to be defined to provide registers
       that cannot be found by examination of FUNCTION_ARG_REGNO_P, the
       callee saved registers, STATIC_CHAIN_INCOMING_REGNUM,
!      STATIC_CHAIN_REGNUM, TARGET_STRUCT_VALUE_RTX, FRAME_POINTER_REGNUM,
!      EH_USES, FRAME_POINTER_REGNUM, ARG_POINTER_REGNUM, and the
!      PIC_OFFSET_TABLE_REGNUM.
  
   -- Target Hook: void TARGET_SET_UP_BY_PROLOGUE (struct
            hard_reg_set_container *)
*************** File: gccint.info,  Node: Stack Smashing
*** 32649,32671 ****
  ---------------------------------
  
   -- Target Hook: tree TARGET_STACK_PROTECT_GUARD (void)
!      This hook returns a `DECL' node for the external variable to use
       for the stack protection guard.  This variable is initialized by
       the runtime to some random value and is used to initialize the
       guard value that is placed at the top of the local stack frame.
!      The type of this variable must be `ptr_type_node'.
  
       The default version of this hook creates a variable called
!      `__stack_chk_guard', which is normally defined in `libgcc2.c'.
  
   -- Target Hook: tree TARGET_STACK_PROTECT_FAIL (void)
!      This hook returns a `CALL_EXPR' that alerts the runtime that the
       stack protect guard variable has been modified.  This expression
!      should involve a call to a `noreturn' function.
  
       The default version of this hook invokes a function called
!      `__stack_chk_fail', taking no arguments.  This function is
!      normally defined in `libgcc2.c'.
  
   -- Common Target Hook: bool TARGET_SUPPORTS_SPLIT_STACK (bool REPORT,
            struct gcc_options *OPTS)
--- 32241,32263 ----
  ---------------------------------
  
   -- Target Hook: tree TARGET_STACK_PROTECT_GUARD (void)
!      This hook returns a 'DECL' node for the external variable to use
       for the stack protection guard.  This variable is initialized by
       the runtime to some random value and is used to initialize the
       guard value that is placed at the top of the local stack frame.
!      The type of this variable must be 'ptr_type_node'.
  
       The default version of this hook creates a variable called
!      '__stack_chk_guard', which is normally defined in 'libgcc2.c'.
  
   -- Target Hook: tree TARGET_STACK_PROTECT_FAIL (void)
!      This hook returns a 'CALL_EXPR' that alerts the runtime that the
       stack protect guard variable has been modified.  This expression
!      should involve a call to a 'noreturn' function.
  
       The default version of this hook invokes a function called
!      '__stack_chk_fail', taking no arguments.  This function is normally
!      defined in 'libgcc2.c'.
  
   -- Common Target Hook: bool TARGET_SUPPORTS_SPLIT_STACK (bool REPORT,
            struct gcc_options *OPTS)
*************** File: gccint.info,  Node: Miscellaneous
*** 32686,32695 ****
       Set to true if each call that binds to a local definition
       explicitly clobbers or sets all non-fixed registers modified by
       performing the call.  That is, by the call pattern itself, or by
!      code that might be inserted by the linker (e.g. stubs, veneers,
       branch islands), but not including those modifiable by the callee.
       The affected registers may be mentioned explicitly in the call
!      pattern, or included as clobbers in CALL_INSN_FUNCTION_USAGE.  The
       default version of this hook is set to false.  The purpose of this
       hook is to enable the fipa-ra optimization.
  
--- 32278,32287 ----
       Set to true if each call that binds to a local definition
       explicitly clobbers or sets all non-fixed registers modified by
       performing the call.  That is, by the call pattern itself, or by
!      code that might be inserted by the linker (e.g.  stubs, veneers,
       branch islands), but not including those modifiable by the callee.
       The affected registers may be mentioned explicitly in the call
!      pattern, or included as clobbers in CALL_INSN_FUNCTION_USAGE. The
       default version of this hook is set to false.  The purpose of this
       hook is to enable the fipa-ra optimization.
  
*************** File: gccint.info,  Node: Varargs,  Next
*** 32699,32862 ****
  17.10 Implementing the Varargs Macros
  =====================================
  
! GCC comes with an implementation of `<varargs.h>' and `<stdarg.h>' that
! work without change on machines that pass arguments on the stack.
! Other machines require their own implementations of varargs, and the
! two machine independent header files must have conditionals to include
! it.
  
!  ISO `<stdarg.h>' differs from traditional `<varargs.h>' mainly in the
! calling convention for `va_start'.  The traditional implementation
! takes just one argument, which is the variable in which to store the
! argument pointer.  The ISO implementation of `va_start' takes an
! additional second argument.  The user is supposed to write the last
! named argument of the function here.
  
!  However, `va_start' should not use this argument.  The way to find the
  end of the named arguments is with the built-in functions described
  below.
  
   -- Macro: __builtin_saveregs ()
!      Use this built-in function to save the argument registers in
!      memory so that the varargs mechanism can access them.  Both ISO
!      and traditional versions of `va_start' must use
!      `__builtin_saveregs', unless you use
!      `TARGET_SETUP_INCOMING_VARARGS' (see below) instead.
  
!      On some machines, `__builtin_saveregs' is open-coded under the
!      control of the target hook `TARGET_EXPAND_BUILTIN_SAVEREGS'.  On
       other machines, it calls a routine written in assembler language,
!      found in `libgcc2.c'.
  
!      Code generated for the call to `__builtin_saveregs' appears at the
       beginning of the function, as opposed to where the call to
!      `__builtin_saveregs' is written, regardless of what the code is.
       This is because the registers must be saved before the function
       starts to use them for its own purposes.
  
   -- Macro: __builtin_next_arg (LASTARG)
       This builtin returns the address of the first anonymous stack
!      argument, as type `void *'.  If `ARGS_GROW_DOWNWARD', it returns
       the address of the location above the first anonymous stack
!      argument.  Use it in `va_start' to initialize the pointer for
!      fetching arguments from the stack.  Also use it in `va_start' to
       verify that the second parameter LASTARG is the last named argument
       of the current function.
  
   -- Macro: __builtin_classify_type (OBJECT)
       Since each machine has its own conventions for which data types are
!      passed in which kind of register, your implementation of `va_arg'
       has to embody these conventions.  The easiest way to categorize the
!      specified data type is to use `__builtin_classify_type' together
!      with `sizeof' and `__alignof__'.
  
!      `__builtin_classify_type' ignores the value of OBJECT, considering
       only its data type.  It returns an integer describing what kind of
       type that is--integer, floating, pointer, structure, and so on.
  
!      The file `typeclass.h' defines an enumeration that you can use to
!      interpret the values of `__builtin_classify_type'.
  
   These machine description macros help implement varargs:
  
   -- Target Hook: rtx TARGET_EXPAND_BUILTIN_SAVEREGS (void)
!      If defined, this hook produces the machine-specific code for a
!      call to `__builtin_saveregs'.  This code will be moved to the very
       beginning of the function, before any parameter access are made.
       The return value of this function should be an RTX that contains
!      the value to use as the return of `__builtin_saveregs'.
  
   -- Target Hook: void TARGET_SETUP_INCOMING_VARARGS (cumulative_args_t
            ARGS_SO_FAR, machine_mode MODE, tree TYPE, int
            *PRETEND_ARGS_SIZE, int SECOND_TIME)
       This target hook offers an alternative to using
!      `__builtin_saveregs' and defining the hook
!      `TARGET_EXPAND_BUILTIN_SAVEREGS'.  Use it to store the anonymous
       register arguments into the stack so that all the arguments appear
!      to have been passed consecutively on the stack.  Once this is
!      done, you can use the standard implementation of varargs that
!      works for machines that pass all their arguments on the stack.
  
!      The argument ARGS_SO_FAR points to the `CUMULATIVE_ARGS' data
!      structure, containing the values that are obtained after
!      processing the named arguments.  The arguments MODE and TYPE
!      describe the last named argument--its machine mode and its data
!      type as a tree node.
  
       The target hook should do two things: first, push onto the stack
       all the argument registers _not_ used for the named arguments, and
       second, store the size of the data thus pushed into the
!      `int'-valued variable pointed to by PRETEND_ARGS_SIZE.  The value
       that you store here will serve as additional offset for setting up
       the stack frame.
  
       Because you must generate code to push the anonymous arguments at
       compile time without knowing their data types,
!      `TARGET_SETUP_INCOMING_VARARGS' is only useful on machines that
       have just a single category of argument register and use it
       uniformly for all data types.
  
!      If the argument SECOND_TIME is nonzero, it means that the
!      arguments of the function are being analyzed for the second time.
!      This happens for an inline function, which is not actually
!      compiled until the end of the source file.  The hook
!      `TARGET_SETUP_INCOMING_VARARGS' should not generate any
       instructions in this case.
  
   -- Target Hook: bool TARGET_STRICT_ARGUMENT_NAMING (cumulative_args_t
            CA)
!      Define this hook to return `true' if the location where a function
       argument is passed depends on whether or not it is a named
       argument.
  
!      This hook controls how the NAMED argument to `TARGET_FUNCTION_ARG'
       is set for varargs and stdarg functions.  If this hook returns
!      `true', the NAMED argument is always true for named arguments, and
!      false for unnamed arguments.  If it returns `false', but
!      `TARGET_PRETEND_OUTGOING_VARARGS_NAMED' returns `true', then all
       arguments are treated as named.  Otherwise, all named arguments
       except the last are treated as named.
  
!      You need not define this hook if it always returns `false'.
  
   -- Target Hook: void TARGET_CALL_ARGS (rtx, TREE)
       While generating RTL for a function call, this target hook is
       invoked once for each argument passed to the function, either a
!      register returned by `TARGET_FUNCTION_ARG' or a memory location.
       It is called just before the point where argument registers are
       stored.  The type of the function to be called is also passed as
!      the second argument; it is `NULL_TREE' for libcalls.  The
!      `TARGET_END_CALL_ARGS' hook is invoked just after the code to copy
!      the return reg has been emitted.  This functionality can be used
!      to perform special setup of call argument registers if a target
!      needs it.  For functions without arguments, the hook is called
!      once with `pc_rtx' passed instead of an argument register.  Most
!      ports do not need to implement anything for this hook.
  
   -- Target Hook: void TARGET_END_CALL_ARGS (void)
       This target hook is invoked while generating RTL for a function
       call, just after the point where the return reg is copied into a
!      pseudo.  It signals that all the call argument and return
!      registers for the just emitted call are now no longer in use.
!      Most ports do not need to implement anything for this hook.
  
   -- Target Hook: bool TARGET_PRETEND_OUTGOING_VARARGS_NAMED
            (cumulative_args_t CA)
       If you need to conditionally change ABIs so that one works with
!      `TARGET_SETUP_INCOMING_VARARGS', but the other works like neither
!      `TARGET_SETUP_INCOMING_VARARGS' nor
!      `TARGET_STRICT_ARGUMENT_NAMING' was defined, then define this hook
!      to return `true' if `TARGET_SETUP_INCOMING_VARARGS' is used,
!      `false' otherwise.  Otherwise, you should not define this hook.
  
   -- Target Hook: rtx TARGET_LOAD_BOUNDS_FOR_ARG (rtx SLOT, rtx ARG, rtx
            SLOT_NO)
!      This hook is used by expand pass to emit insn to load bounds of
!      ARG passed in SLOT.  Expand pass uses this hook in case bounds of
!      ARG are not passed in register.  If SLOT is a memory, then bounds
!      are loaded as for regular pointer loaded from memory.  If SLOT is
!      not a memory then SLOT_NO is an integer constant holding number of
!      the target dependent special slot which should be used to obtain
       bounds.  Hook returns RTX holding loaded bounds.
  
   -- Target Hook: void TARGET_STORE_BOUNDS_FOR_ARG (rtx ARG, rtx SLOT,
--- 32291,32451 ----
  17.10 Implementing the Varargs Macros
  =====================================
  
! GCC comes with an implementation of '<varargs.h>' and '<stdarg.h>' that
! work without change on machines that pass arguments on the stack.  Other
! machines require their own implementations of varargs, and the two
! machine independent header files must have conditionals to include it.
  
!  ISO '<stdarg.h>' differs from traditional '<varargs.h>' mainly in the
! calling convention for 'va_start'.  The traditional implementation takes
! just one argument, which is the variable in which to store the argument
! pointer.  The ISO implementation of 'va_start' takes an additional
! second argument.  The user is supposed to write the last named argument
! of the function here.
  
!  However, 'va_start' should not use this argument.  The way to find the
  end of the named arguments is with the built-in functions described
  below.
  
   -- Macro: __builtin_saveregs ()
!      Use this built-in function to save the argument registers in memory
!      so that the varargs mechanism can access them.  Both ISO and
!      traditional versions of 'va_start' must use '__builtin_saveregs',
!      unless you use 'TARGET_SETUP_INCOMING_VARARGS' (see below) instead.
  
!      On some machines, '__builtin_saveregs' is open-coded under the
!      control of the target hook 'TARGET_EXPAND_BUILTIN_SAVEREGS'.  On
       other machines, it calls a routine written in assembler language,
!      found in 'libgcc2.c'.
  
!      Code generated for the call to '__builtin_saveregs' appears at the
       beginning of the function, as opposed to where the call to
!      '__builtin_saveregs' is written, regardless of what the code is.
       This is because the registers must be saved before the function
       starts to use them for its own purposes.
  
   -- Macro: __builtin_next_arg (LASTARG)
       This builtin returns the address of the first anonymous stack
!      argument, as type 'void *'.  If 'ARGS_GROW_DOWNWARD', it returns
       the address of the location above the first anonymous stack
!      argument.  Use it in 'va_start' to initialize the pointer for
!      fetching arguments from the stack.  Also use it in 'va_start' to
       verify that the second parameter LASTARG is the last named argument
       of the current function.
  
   -- Macro: __builtin_classify_type (OBJECT)
       Since each machine has its own conventions for which data types are
!      passed in which kind of register, your implementation of 'va_arg'
       has to embody these conventions.  The easiest way to categorize the
!      specified data type is to use '__builtin_classify_type' together
!      with 'sizeof' and '__alignof__'.
  
!      '__builtin_classify_type' ignores the value of OBJECT, considering
       only its data type.  It returns an integer describing what kind of
       type that is--integer, floating, pointer, structure, and so on.
  
!      The file 'typeclass.h' defines an enumeration that you can use to
!      interpret the values of '__builtin_classify_type'.
  
   These machine description macros help implement varargs:
  
   -- Target Hook: rtx TARGET_EXPAND_BUILTIN_SAVEREGS (void)
!      If defined, this hook produces the machine-specific code for a call
!      to '__builtin_saveregs'.  This code will be moved to the very
       beginning of the function, before any parameter access are made.
       The return value of this function should be an RTX that contains
!      the value to use as the return of '__builtin_saveregs'.
  
   -- Target Hook: void TARGET_SETUP_INCOMING_VARARGS (cumulative_args_t
            ARGS_SO_FAR, machine_mode MODE, tree TYPE, int
            *PRETEND_ARGS_SIZE, int SECOND_TIME)
       This target hook offers an alternative to using
!      '__builtin_saveregs' and defining the hook
!      'TARGET_EXPAND_BUILTIN_SAVEREGS'.  Use it to store the anonymous
       register arguments into the stack so that all the arguments appear
!      to have been passed consecutively on the stack.  Once this is done,
!      you can use the standard implementation of varargs that works for
!      machines that pass all their arguments on the stack.
  
!      The argument ARGS_SO_FAR points to the 'CUMULATIVE_ARGS' data
!      structure, containing the values that are obtained after processing
!      the named arguments.  The arguments MODE and TYPE describe the last
!      named argument--its machine mode and its data type as a tree node.
  
       The target hook should do two things: first, push onto the stack
       all the argument registers _not_ used for the named arguments, and
       second, store the size of the data thus pushed into the
!      'int'-valued variable pointed to by PRETEND_ARGS_SIZE.  The value
       that you store here will serve as additional offset for setting up
       the stack frame.
  
       Because you must generate code to push the anonymous arguments at
       compile time without knowing their data types,
!      'TARGET_SETUP_INCOMING_VARARGS' is only useful on machines that
       have just a single category of argument register and use it
       uniformly for all data types.
  
!      If the argument SECOND_TIME is nonzero, it means that the arguments
!      of the function are being analyzed for the second time.  This
!      happens for an inline function, which is not actually compiled
!      until the end of the source file.  The hook
!      'TARGET_SETUP_INCOMING_VARARGS' should not generate any
       instructions in this case.
  
   -- Target Hook: bool TARGET_STRICT_ARGUMENT_NAMING (cumulative_args_t
            CA)
!      Define this hook to return 'true' if the location where a function
       argument is passed depends on whether or not it is a named
       argument.
  
!      This hook controls how the NAMED argument to 'TARGET_FUNCTION_ARG'
       is set for varargs and stdarg functions.  If this hook returns
!      'true', the NAMED argument is always true for named arguments, and
!      false for unnamed arguments.  If it returns 'false', but
!      'TARGET_PRETEND_OUTGOING_VARARGS_NAMED' returns 'true', then all
       arguments are treated as named.  Otherwise, all named arguments
       except the last are treated as named.
  
!      You need not define this hook if it always returns 'false'.
  
   -- Target Hook: void TARGET_CALL_ARGS (rtx, TREE)
       While generating RTL for a function call, this target hook is
       invoked once for each argument passed to the function, either a
!      register returned by 'TARGET_FUNCTION_ARG' or a memory location.
       It is called just before the point where argument registers are
       stored.  The type of the function to be called is also passed as
!      the second argument; it is 'NULL_TREE' for libcalls.  The
!      'TARGET_END_CALL_ARGS' hook is invoked just after the code to copy
!      the return reg has been emitted.  This functionality can be used to
!      perform special setup of call argument registers if a target needs
!      it.  For functions without arguments, the hook is called once with
!      'pc_rtx' passed instead of an argument register.  Most ports do not
!      need to implement anything for this hook.
  
   -- Target Hook: void TARGET_END_CALL_ARGS (void)
       This target hook is invoked while generating RTL for a function
       call, just after the point where the return reg is copied into a
!      pseudo.  It signals that all the call argument and return registers
!      for the just emitted call are now no longer in use.  Most ports do
!      not need to implement anything for this hook.
  
   -- Target Hook: bool TARGET_PRETEND_OUTGOING_VARARGS_NAMED
            (cumulative_args_t CA)
       If you need to conditionally change ABIs so that one works with
!      'TARGET_SETUP_INCOMING_VARARGS', but the other works like neither
!      'TARGET_SETUP_INCOMING_VARARGS' nor 'TARGET_STRICT_ARGUMENT_NAMING'
!      was defined, then define this hook to return 'true' if
!      'TARGET_SETUP_INCOMING_VARARGS' is used, 'false' otherwise.
!      Otherwise, you should not define this hook.
  
   -- Target Hook: rtx TARGET_LOAD_BOUNDS_FOR_ARG (rtx SLOT, rtx ARG, rtx
            SLOT_NO)
!      This hook is used by expand pass to emit insn to load bounds of ARG
!      passed in SLOT.  Expand pass uses this hook in case bounds of ARG
!      are not passed in register.  If SLOT is a memory, then bounds are
!      loaded as for regular pointer loaded from memory.  If SLOT is not a
!      memory then SLOT_NO is an integer constant holding number of the
!      target dependent special slot which should be used to obtain
       bounds.  Hook returns RTX holding loaded bounds.
  
   -- Target Hook: void TARGET_STORE_BOUNDS_FOR_ARG (rtx ARG, rtx SLOT,
*************** below.
*** 32864,32878 ****
       This hook is used by expand pass to emit insns to store BOUNDS of
       ARG passed in SLOT.  Expand pass uses this hook in case BOUNDS of
       ARG are not passed in register.  If SLOT is a memory, then BOUNDS
!      are stored as for regular pointer stored in memory.  If SLOT is
!      not a memory then SLOT_NO is an integer constant holding number of
!      the target dependent special slot which should be used to store
!      BOUNDS.
  
   -- Target Hook: rtx TARGET_LOAD_RETURNED_BOUNDS (rtx SLOT)
       This hook is used by expand pass to emit insn to load bounds
!      returned by function call in SLOT.  Hook returns RTX holding
!      loaded bounds.
  
   -- Target Hook: void TARGET_STORE_RETURNED_BOUNDS (rtx SLOT, rtx
            BOUNDS)
--- 32453,32466 ----
       This hook is used by expand pass to emit insns to store BOUNDS of
       ARG passed in SLOT.  Expand pass uses this hook in case BOUNDS of
       ARG are not passed in register.  If SLOT is a memory, then BOUNDS
!      are stored as for regular pointer stored in memory.  If SLOT is not
!      a memory then SLOT_NO is an integer constant holding number of the
!      target dependent special slot which should be used to store BOUNDS.
  
   -- Target Hook: rtx TARGET_LOAD_RETURNED_BOUNDS (rtx SLOT)
       This hook is used by expand pass to emit insn to load bounds
!      returned by function call in SLOT.  Hook returns RTX holding loaded
!      bounds.
  
   -- Target Hook: void TARGET_STORE_RETURNED_BOUNDS (rtx SLOT, rtx
            BOUNDS)
*************** below.
*** 32883,32896 ****
            RET_TYPE, const_tree FN_DECL_OR_TYPE, bool OUTGOING)
       Define this to return an RTX representing the place where a
       function returns bounds for returned pointers.  Arguments meaning
!      is similar to `TARGET_FUNCTION_VALUE'.
  
   -- Target Hook: void TARGET_SETUP_INCOMING_VARARG_BOUNDS
            (cumulative_args_t ARGS_SO_FAR, enum machine_mode MODE, tree
            TYPE, int *PRETEND_ARGS_SIZE, int SECOND_TIME)
!      Use it to store bounds for anonymous register arguments stored
!      into the stack.  Arguments meaning is similar to
!      `TARGET_SETUP_INCOMING_VARARGS'.
  
  
  File: gccint.info,  Node: Trampolines,  Next: Library Calls,  Prev: Varargs,  Up: Target Macros
--- 32471,32484 ----
            RET_TYPE, const_tree FN_DECL_OR_TYPE, bool OUTGOING)
       Define this to return an RTX representing the place where a
       function returns bounds for returned pointers.  Arguments meaning
!      is similar to 'TARGET_FUNCTION_VALUE'.
  
   -- Target Hook: void TARGET_SETUP_INCOMING_VARARG_BOUNDS
            (cumulative_args_t ARGS_SO_FAR, enum machine_mode MODE, tree
            TYPE, int *PRETEND_ARGS_SIZE, int SECOND_TIME)
!      Use it to store bounds for anonymous register arguments stored into
!      the stack.  Arguments meaning is similar to
!      'TARGET_SETUP_INCOMING_VARARGS'.
  
  
  File: gccint.info,  Node: Trampolines,  Next: Library Calls,  Prev: Varargs,  Up: Target Macros
*************** File: gccint.info,  Node: Trampolines,
*** 32898,32907 ****
  17.11 Trampolines for Nested Functions
  ======================================
  
! A "trampoline" is a small piece of code that is created at run time
! when the address of a nested function is taken.  It normally resides on
! the stack, in the stack frame of the containing function.  These macros
! tell GCC how to generate code to allocate and initialize a trampoline.
  
   The instructions in the trampoline must do two things: load a constant
  address into the static chain register, and jump to the real address of
--- 32486,32495 ----
  17.11 Trampolines for Nested Functions
  ======================================
  
! A "trampoline" is a small piece of code that is created at run time when
! the address of a nested function is taken.  It normally resides on the
! stack, in the stack frame of the containing function.  These macros tell
! GCC how to generate code to allocate and initialize a trampoline.
  
   The instructions in the trampoline must do two things: load a constant
  address into the static chain register, and jump to the real address of
*************** may be necessary to take out pieces of t
*** 32921,32929 ****
  separately.
  
   -- Target Hook: void TARGET_ASM_TRAMPOLINE_TEMPLATE (FILE *F)
!      This hook is called by `assemble_trampoline_template' to output,
!      on the stream F, assembler code for a block of data that contains
!      the constant parts of a trampoline.  This code should not include a
       label--the label is taken care of automatically.
  
       If you do not define this hook, it means no template is needed for
--- 32509,32517 ----
  separately.
  
   -- Target Hook: void TARGET_ASM_TRAMPOLINE_TEMPLATE (FILE *F)
!      This hook is called by 'assemble_trampoline_template' to output, on
!      the stream F, assembler code for a block of data that contains the
!      constant parts of a trampoline.  This code should not include a
       label--the label is taken care of automatically.
  
       If you do not define this hook, it means no template is needed for
*************** separately.
*** 32934,32940 ****
   -- Macro: TRAMPOLINE_SECTION
       Return the section into which the trampoline template is to be
       placed (*note Sections::).  The default value is
!      `readonly_data_section'.
  
   -- Macro: TRAMPOLINE_SIZE
       A C expression for the size in bytes of the trampoline, as an
--- 32522,32528 ----
   -- Macro: TRAMPOLINE_SECTION
       Return the section into which the trampoline template is to be
       placed (*note Sections::).  The default value is
!      'readonly_data_section'.
  
   -- Macro: TRAMPOLINE_SIZE
       A C expression for the size in bytes of the trampoline, as an
*************** separately.
*** 32943,32965 ****
   -- Macro: TRAMPOLINE_ALIGNMENT
       Alignment required for trampolines, in bits.
  
!      If you don't define this macro, the value of `FUNCTION_ALIGNMENT'
       is used for aligning trampolines.
  
   -- Target Hook: void TARGET_TRAMPOLINE_INIT (rtx M_TRAMP, tree FNDECL,
            rtx STATIC_CHAIN)
       This hook is called to initialize a trampoline.  M_TRAMP is an RTX
       for the memory block for the trampoline; FNDECL is the
!      `FUNCTION_DECL' for the nested function; STATIC_CHAIN is an RTX
!      for the static chain value that should be passed to the function
!      when it is called.
  
!      If the target defines `TARGET_ASM_TRAMPOLINE_TEMPLATE', then the
       first thing this hook should do is emit a block move into M_TRAMP
!      from the memory block returned by `assemble_trampoline_template'.
       Note that the block move need only cover the constant parts of the
       trampoline.  If the target isolates the variable parts of the
!      trampoline to the end, not all `TRAMPOLINE_SIZE' bytes need be
       copied.
  
       If the target requires any other actions, such as flushing caches
--- 32531,32553 ----
   -- Macro: TRAMPOLINE_ALIGNMENT
       Alignment required for trampolines, in bits.
  
!      If you don't define this macro, the value of 'FUNCTION_ALIGNMENT'
       is used for aligning trampolines.
  
   -- Target Hook: void TARGET_TRAMPOLINE_INIT (rtx M_TRAMP, tree FNDECL,
            rtx STATIC_CHAIN)
       This hook is called to initialize a trampoline.  M_TRAMP is an RTX
       for the memory block for the trampoline; FNDECL is the
!      'FUNCTION_DECL' for the nested function; STATIC_CHAIN is an RTX for
!      the static chain value that should be passed to the function when
!      it is called.
  
!      If the target defines 'TARGET_ASM_TRAMPOLINE_TEMPLATE', then the
       first thing this hook should do is emit a block move into M_TRAMP
!      from the memory block returned by 'assemble_trampoline_template'.
       Note that the block move need only cover the constant parts of the
       trampoline.  If the target isolates the variable parts of the
!      trampoline to the end, not all 'TRAMPOLINE_SIZE' bytes need be
       copied.
  
       If the target requires any other actions, such as flushing caches
*************** separately.
*** 32969,32985 ****
   -- Target Hook: rtx TARGET_TRAMPOLINE_ADJUST_ADDRESS (rtx ADDR)
       This hook should perform any machine-specific adjustment in the
       address of the trampoline.  Its argument contains the address of
!      the memory block that was passed to `TARGET_TRAMPOLINE_INIT'.  In
!      case the address to be used for a function call should be
!      different from the address at which the template was stored, the
!      different address should be returned; otherwise ADDR should be
!      returned unchanged.  If this hook is not defined, ADDR will be
!      used for function calls.
  
   Implementing trampolines is difficult on many machines because they
  have separate instruction and data caches.  Writing into a stack
! location fails to clear the memory in the instruction cache, so when
! the program jumps to that location, it executes the old contents.
  
   Here are two possible solutions.  One is to clear the relevant parts of
  the instruction cache whenever a trampoline is set up.  The other is to
--- 32557,32573 ----
   -- Target Hook: rtx TARGET_TRAMPOLINE_ADJUST_ADDRESS (rtx ADDR)
       This hook should perform any machine-specific adjustment in the
       address of the trampoline.  Its argument contains the address of
!      the memory block that was passed to 'TARGET_TRAMPOLINE_INIT'.  In
!      case the address to be used for a function call should be different
!      from the address at which the template was stored, the different
!      address should be returned; otherwise ADDR should be returned
!      unchanged.  If this hook is not defined, ADDR will be used for
!      function calls.
  
   Implementing trampolines is difficult on many machines because they
  have separate instruction and data caches.  Writing into a stack
! location fails to clear the memory in the instruction cache, so when the
! program jumps to that location, it executes the old contents.
  
   Here are two possible solutions.  One is to clear the relevant parts of
  the instruction cache whenever a trampoline is set up.  The other is to
*************** the following macro.
*** 32993,33019 ****
   -- Macro: CLEAR_INSN_CACHE (BEG, END)
       If defined, expands to a C expression clearing the _instruction
       cache_ in the specified interval.  The definition of this macro
!      would typically be a series of `asm' statements.  Both BEG and END
       are both pointer expressions.
  
   To use a standard subroutine, define the following macro.  In addition,
  you must make sure that the instructions in a trampoline fill an entire
  cache line with identical instructions, or else ensure that the
  beginning of the trampoline code is always aligned at the same point in
! its cache line.  Look in `m68k.h' as a guide.
  
   -- Macro: TRANSFER_FROM_TRAMPOLINE
       Define this macro if trampolines need a special subroutine to do
!      their work.  The macro should expand to a series of `asm'
       statements which will be compiled with GCC.  They go in a library
!      function named `__transfer_from_trampoline'.
  
       If you need to avoid executing the ordinary prologue code of a
       compiled C function when you jump to the subroutine, you can do so
       by placing a special label of your own in the assembler code.  Use
!      one `asm' statement to generate an assembler label, and another to
!      make the label global.  Then trampolines can use that label to
!      jump directly to your special assembler code.
  
  
  File: gccint.info,  Node: Library Calls,  Next: Addressing Modes,  Prev: Trampolines,  Up: Target Macros
--- 32581,32607 ----
   -- Macro: CLEAR_INSN_CACHE (BEG, END)
       If defined, expands to a C expression clearing the _instruction
       cache_ in the specified interval.  The definition of this macro
!      would typically be a series of 'asm' statements.  Both BEG and END
       are both pointer expressions.
  
   To use a standard subroutine, define the following macro.  In addition,
  you must make sure that the instructions in a trampoline fill an entire
  cache line with identical instructions, or else ensure that the
  beginning of the trampoline code is always aligned at the same point in
! its cache line.  Look in 'm68k.h' as a guide.
  
   -- Macro: TRANSFER_FROM_TRAMPOLINE
       Define this macro if trampolines need a special subroutine to do
!      their work.  The macro should expand to a series of 'asm'
       statements which will be compiled with GCC.  They go in a library
!      function named '__transfer_from_trampoline'.
  
       If you need to avoid executing the ordinary prologue code of a
       compiled C function when you jump to the subroutine, you can do so
       by placing a special label of your own in the assembler code.  Use
!      one 'asm' statement to generate an assembler label, and another to
!      make the label global.  Then trampolines can use that label to jump
!      directly to your special assembler code.
  
  
  File: gccint.info,  Node: Library Calls,  Next: Addressing Modes,  Prev: Trampolines,  Up: Target Macros
*************** Here is an explanation of implicit calls
*** 33025,33054 ****
  
   -- Macro: DECLARE_LIBRARY_RENAMES
       This macro, if defined, should expand to a piece of C code that
!      will get expanded when compiling functions for libgcc.a.  It can
!      be used to provide alternate names for GCC's internal library
       functions if there are ABI-mandated names that the compiler should
       provide.
  
   -- Target Hook: void TARGET_INIT_LIBFUNCS (void)
       This hook should declare additional library routines or rename
!      existing ones, using the functions `set_optab_libfunc' and
!      `init_one_libfunc' defined in `optabs.c'.  `init_optabs' calls
!      this macro after initializing all the normal library routines.
  
!      The default is to do nothing.  Most ports don't need to define
!      this hook.
  
   -- Target Hook: bool TARGET_LIBFUNC_GNU_PREFIX
       If false (the default), internal library routines start with two
!      underscores.  If set to true, these routines start with `__gnu_'
!      instead.  E.g., `__muldi3' changes to `__gnu_muldi3'.  This
!      currently only affects functions defined in `libgcc2.c'.  If this
!      is set to true, the `tm.h' file must also `#define
       LIBGCC2_GNU_PREFIX'.
  
   -- Macro: FLOAT_LIB_COMPARE_RETURNS_BOOL (MODE, COMPARISON)
!      This macro should return `true' if the library routine that
       implements the floating point comparison operator COMPARISON in
       mode MODE will return a boolean, and FALSE if it will return a
       tristate.
--- 32613,32642 ----
  
   -- Macro: DECLARE_LIBRARY_RENAMES
       This macro, if defined, should expand to a piece of C code that
!      will get expanded when compiling functions for libgcc.a.  It can be
!      used to provide alternate names for GCC's internal library
       functions if there are ABI-mandated names that the compiler should
       provide.
  
   -- Target Hook: void TARGET_INIT_LIBFUNCS (void)
       This hook should declare additional library routines or rename
!      existing ones, using the functions 'set_optab_libfunc' and
!      'init_one_libfunc' defined in 'optabs.c'.  'init_optabs' calls this
!      macro after initializing all the normal library routines.
  
!      The default is to do nothing.  Most ports don't need to define this
!      hook.
  
   -- Target Hook: bool TARGET_LIBFUNC_GNU_PREFIX
       If false (the default), internal library routines start with two
!      underscores.  If set to true, these routines start with '__gnu_'
!      instead.  E.g., '__muldi3' changes to '__gnu_muldi3'.  This
!      currently only affects functions defined in 'libgcc2.c'.  If this
!      is set to true, the 'tm.h' file must also '#define
       LIBGCC2_GNU_PREFIX'.
  
   -- Macro: FLOAT_LIB_COMPARE_RETURNS_BOOL (MODE, COMPARISON)
!      This macro should return 'true' if the library routine that
       implements the floating point comparison operator COMPARISON in
       mode MODE will return a boolean, and FALSE if it will return a
       tristate.
*************** Here is an explanation of implicit calls
*** 33058,33070 ****
       ports don't need to define this macro.
  
   -- Macro: TARGET_LIB_INT_CMP_BIASED
!      This macro should evaluate to `true' if the integer comparison
!      functions (like `__cmpdi2') return 0 to indicate that the first
       operand is smaller than the second, 1 to indicate that they are
!      equal, and 2 to indicate that the first operand is greater than
!      the second.  If this macro evaluates to `false' the comparison
       functions return -1, 0, and 1 instead of 0, 1, and 2.  If the
!      target uses the routines in `libgcc.a', you do not need to define
       this macro.
  
   -- Macro: TARGET_HAS_NO_HW_DIVIDE
--- 32646,32658 ----
       ports don't need to define this macro.
  
   -- Macro: TARGET_LIB_INT_CMP_BIASED
!      This macro should evaluate to 'true' if the integer comparison
!      functions (like '__cmpdi2') return 0 to indicate that the first
       operand is smaller than the second, 1 to indicate that they are
!      equal, and 2 to indicate that the first operand is greater than the
!      second.  If this macro evaluates to 'false' the comparison
       functions return -1, 0, and 1 instead of 0, 1, and 2.  If the
!      target uses the routines in 'libgcc.a', you do not need to define
       this macro.
  
   -- Macro: TARGET_HAS_NO_HW_DIVIDE
*************** Here is an explanation of implicit calls
*** 33075,33095 ****
       algorithm which make use of a 64-bit by 32-bit divide primitive.
  
   -- Macro: TARGET_EDOM
!      The value of `EDOM' on the target machine, as a C integer constant
       expression.  If you don't define this macro, GCC does not attempt
!      to deposit the value of `EDOM' into `errno' directly.  Look in
!      `/usr/include/errno.h' to find the value of `EDOM' on your system.
  
!      If you do not define `TARGET_EDOM', then compiled code reports
!      domain errors by calling the library function and letting it
!      report the error.  If mathematical functions on your system use
!      `matherr' when there is an error, then you should leave
!      `TARGET_EDOM' undefined so that `matherr' is used normally.
  
   -- Macro: GEN_ERRNO_RTX
       Define this macro as a C expression to create an rtl expression
!      that refers to the global "variable" `errno'.  (On certain systems,
!      `errno' may not actually be a variable.)  If you don't define this
       macro, a reasonable default is used.
  
   -- Target Hook: bool TARGET_LIBC_HAS_FUNCTION (enum function_class
--- 32663,32683 ----
       algorithm which make use of a 64-bit by 32-bit divide primitive.
  
   -- Macro: TARGET_EDOM
!      The value of 'EDOM' on the target machine, as a C integer constant
       expression.  If you don't define this macro, GCC does not attempt
!      to deposit the value of 'EDOM' into 'errno' directly.  Look in
!      '/usr/include/errno.h' to find the value of 'EDOM' on your system.
  
!      If you do not define 'TARGET_EDOM', then compiled code reports
!      domain errors by calling the library function and letting it report
!      the error.  If mathematical functions on your system use 'matherr'
!      when there is an error, then you should leave 'TARGET_EDOM'
!      undefined so that 'matherr' is used normally.
  
   -- Macro: GEN_ERRNO_RTX
       Define this macro as a C expression to create an rtl expression
!      that refers to the global "variable" 'errno'.  (On certain systems,
!      'errno' may not actually be a variable.)  If you don't define this
       macro, a reasonable default is used.
  
   -- Target Hook: bool TARGET_LIBC_HAS_FUNCTION (enum function_class
*************** Here is an explanation of implicit calls
*** 33101,33109 ****
       Set this macro to 1 to use the "NeXT" Objective-C message sending
       conventions by default.  This calling convention involves passing
       the object, the selector and the method arguments all at once to
!      the method-lookup library function.  This is the usual setting
!      when targeting Darwin/Mac OS X systems, which have the NeXT
!      runtime installed.
  
       If the macro is set to 0, the "GNU" Objective-C message sending
       convention will be used by default.  This convention passes just
--- 32689,32697 ----
       Set this macro to 1 to use the "NeXT" Objective-C message sending
       conventions by default.  This calling convention involves passing
       the object, the selector and the method arguments all at once to
!      the method-lookup library function.  This is the usual setting when
!      targeting Darwin/Mac OS X systems, which have the NeXT runtime
!      installed.
  
       If the macro is set to 0, the "GNU" Objective-C message sending
       convention will be used by default.  This convention passes just
*************** This is about addressing modes.
*** 33144,33165 ****
   -- Macro: CONSTANT_ADDRESS_P (X)
       A C expression that is 1 if the RTX X is a constant which is a
       valid address.  On most machines the default definition of
!      `(CONSTANT_P (X) && GET_CODE (X) != CONST_DOUBLE)' is acceptable,
       but a few machines are more restrictive as to which constant
       addresses are supported.
  
   -- Macro: CONSTANT_P (X)
!      `CONSTANT_P', which is defined by target-independent code, accepts
       integer-values expressions whose values are not explicitly known,
!      such as `symbol_ref', `label_ref', and `high' expressions and
!      `const' arithmetic expressions, in addition to `const_int' and
!      `const_double' expressions.
  
   -- Macro: MAX_REGS_PER_ADDRESS
       A number, the maximum number of registers that can appear in a
!      valid memory address.  Note that it is up to you to specify a
!      value equal to the maximum number that
!      `TARGET_LEGITIMATE_ADDRESS_P' would ever accept.
  
   -- Target Hook: bool TARGET_LEGITIMATE_ADDRESS_P (machine_mode MODE,
            rtx X, bool STRICT)
--- 32732,32753 ----
   -- Macro: CONSTANT_ADDRESS_P (X)
       A C expression that is 1 if the RTX X is a constant which is a
       valid address.  On most machines the default definition of
!      '(CONSTANT_P (X) && GET_CODE (X) != CONST_DOUBLE)' is acceptable,
       but a few machines are more restrictive as to which constant
       addresses are supported.
  
   -- Macro: CONSTANT_P (X)
!      'CONSTANT_P', which is defined by target-independent code, accepts
       integer-values expressions whose values are not explicitly known,
!      such as 'symbol_ref', 'label_ref', and 'high' expressions and
!      'const' arithmetic expressions, in addition to 'const_int' and
!      'const_double' expressions.
  
   -- Macro: MAX_REGS_PER_ADDRESS
       A number, the maximum number of registers that can appear in a
!      valid memory address.  Note that it is up to you to specify a value
!      equal to the maximum number that 'TARGET_LEGITIMATE_ADDRESS_P'
!      would ever accept.
  
   -- Target Hook: bool TARGET_LEGITIMATE_ADDRESS_P (machine_mode MODE,
            rtx X, bool STRICT)
*************** This is about addressing modes.
*** 33173,33220 ****
       The strict variant is used in the reload pass.  It must be defined
       so that any pseudo-register that has not been allocated a hard
       register is considered a memory reference.  This is because in
!      contexts where some kind of register is required, a
!      pseudo-register with no hard register must be rejected.  For
!      non-hard registers, the strict variant should look up the
!      `reg_renumber' array; it should then proceed using the hard
!      register number in the array, or treat the pseudo as a memory
!      reference if the array holds `-1'.
  
!      The non-strict variant is used in other passes.  It must be
!      defined to accept all pseudo-registers in every context where some
!      kind of register is required.
  
!      Normally, constant addresses which are the sum of a `symbol_ref'
!      and an integer are stored inside a `const' RTX to mark them as
       constant.  Therefore, there is no need to recognize such sums
       specifically as legitimate addresses.  Normally you would simply
!      recognize any `const' as legitimate.
  
!      Usually `PRINT_OPERAND_ADDRESS' is not prepared to handle constant
!      sums that are not marked with  `const'.  It assumes that a naked
!      `plus' indicates indexing.  If so, then you _must_ reject such
!      naked constant sums as illegitimate addresses, so that none of
!      them will be given to `PRINT_OPERAND_ADDRESS'.
  
       On some machines, whether a symbolic address is legitimate depends
       on the section that the address refers to.  On these machines,
!      define the target hook `TARGET_ENCODE_SECTION_INFO' to store the
!      information into the `symbol_ref', and then check for it here.
!      When you see a `const', you will have to look inside it to find the
!      `symbol_ref' in order to determine the section.  *Note Assembler
       Format::.
  
       Some ports are still using a deprecated legacy substitute for this
!      hook, the `GO_IF_LEGITIMATE_ADDRESS' macro.  This macro has this
       syntax:
  
            #define GO_IF_LEGITIMATE_ADDRESS (MODE, X, LABEL)
  
!      and should `goto LABEL' if the address X is a valid address on the
       target machine for a memory operand of mode MODE.
  
       Compiler source files that want to use the strict variant of this
!      macro define the macro `REG_OK_STRICT'.  You should use an `#ifdef
       REG_OK_STRICT' conditional to define the strict variant in that
       case and the non-strict variant otherwise.
  
--- 32761,32807 ----
       The strict variant is used in the reload pass.  It must be defined
       so that any pseudo-register that has not been allocated a hard
       register is considered a memory reference.  This is because in
!      contexts where some kind of register is required, a pseudo-register
!      with no hard register must be rejected.  For non-hard registers,
!      the strict variant should look up the 'reg_renumber' array; it
!      should then proceed using the hard register number in the array, or
!      treat the pseudo as a memory reference if the array holds '-1'.
  
!      The non-strict variant is used in other passes.  It must be defined
!      to accept all pseudo-registers in every context where some kind of
!      register is required.
  
!      Normally, constant addresses which are the sum of a 'symbol_ref'
!      and an integer are stored inside a 'const' RTX to mark them as
       constant.  Therefore, there is no need to recognize such sums
       specifically as legitimate addresses.  Normally you would simply
!      recognize any 'const' as legitimate.
  
!      Usually 'PRINT_OPERAND_ADDRESS' is not prepared to handle constant
!      sums that are not marked with 'const'.  It assumes that a naked
!      'plus' indicates indexing.  If so, then you _must_ reject such
!      naked constant sums as illegitimate addresses, so that none of them
!      will be given to 'PRINT_OPERAND_ADDRESS'.
  
       On some machines, whether a symbolic address is legitimate depends
       on the section that the address refers to.  On these machines,
!      define the target hook 'TARGET_ENCODE_SECTION_INFO' to store the
!      information into the 'symbol_ref', and then check for it here.
!      When you see a 'const', you will have to look inside it to find the
!      'symbol_ref' in order to determine the section.  *Note Assembler
       Format::.
  
       Some ports are still using a deprecated legacy substitute for this
!      hook, the 'GO_IF_LEGITIMATE_ADDRESS' macro.  This macro has this
       syntax:
  
            #define GO_IF_LEGITIMATE_ADDRESS (MODE, X, LABEL)
  
!      and should 'goto LABEL' if the address X is a valid address on the
       target machine for a memory operand of mode MODE.
  
       Compiler source files that want to use the strict variant of this
!      macro define the macro 'REG_OK_STRICT'.  You should use an '#ifdef
       REG_OK_STRICT' conditional to define the strict variant in that
       case and the non-strict variant otherwise.
  
*************** This is about addressing modes.
*** 33222,33241 ****
       files that are recompiled when changes are made.
  
   -- Macro: TARGET_MEM_CONSTRAINT
!      A single character to be used instead of the default `'m''
       character for general memory addresses.  This defines the
       constraint letter which matches the memory addresses accepted by
!      `TARGET_LEGITIMATE_ADDRESS_P'.  Define this macro if you want to
       support new address formats in your back end without changing the
!      semantics of the `'m'' constraint.  This is necessary in order to
       preserve functionality of inline assembly constructs using the
!      `'m'' constraint.
  
   -- Macro: FIND_BASE_TERM (X)
       A C expression to determine the base term of address X, or to
!      provide a simplified version of X from which `alias.c' can easily
       find the base term.  This macro is used in only two places:
!      `find_base_value' and `find_base_term' in `alias.c'.
  
       It is always safe for this macro to not be defined.  It exists so
       that alias analysis can understand machine-dependent addresses.
--- 32809,32828 ----
       files that are recompiled when changes are made.
  
   -- Macro: TARGET_MEM_CONSTRAINT
!      A single character to be used instead of the default ''m''
       character for general memory addresses.  This defines the
       constraint letter which matches the memory addresses accepted by
!      'TARGET_LEGITIMATE_ADDRESS_P'.  Define this macro if you want to
       support new address formats in your back end without changing the
!      semantics of the ''m'' constraint.  This is necessary in order to
       preserve functionality of inline assembly constructs using the
!      ''m'' constraint.
  
   -- Macro: FIND_BASE_TERM (X)
       A C expression to determine the base term of address X, or to
!      provide a simplified version of X from which 'alias.c' can easily
       find the base term.  This macro is used in only two places:
!      'find_base_value' and 'find_base_term' in 'alias.c'.
  
       It is always safe for this macro to not be defined.  It exists so
       that alias analysis can understand machine-dependent addresses.
*************** This is about addressing modes.
*** 33248,33321 ****
       This hook is given an invalid memory address X for an operand of
       mode MODE and should try to return a valid memory address.
  
!      X will always be the result of a call to `break_out_memory_refs',
       and OLDX will be the operand that was given to that function to
       produce X.
  
!      The code of the hook should not alter the substructure of X.  If
!      it transforms X into a more legitimate form, it should return the
!      new X.
  
       It is not necessary for this hook to come up with a legitimate
!      address, with the exception of native TLS addresses (*note
!      Emulated TLS::).  The compiler has standard ways of doing so in
!      all cases.  In fact, if the target supports only emulated TLS, it
!      is safe to omit this hook or make it return X if it cannot find a
!      valid way to legitimize the address.  But often a machine-dependent
!      strategy can generate better code.
  
   -- Macro: LEGITIMIZE_RELOAD_ADDRESS (X, MODE, OPNUM, TYPE, IND_LEVELS,
            WIN)
       A C compound statement that attempts to replace X, which is an
       address that needs reloading, with a valid memory address for an
!      operand of mode MODE.  WIN will be a C statement label elsewhere
!      in the code.  It is not necessary to define this macro, but it
!      might be useful for performance reasons.
  
       For example, on the i386, it is sometimes possible to use a single
       reload register instead of two by reloading a sum of two pseudo
       registers into a register.  On the other hand, for number of RISC
       processors offsets are limited so that often an intermediate
!      address needs to be generated in order to address a stack slot.
!      By defining `LEGITIMIZE_RELOAD_ADDRESS' appropriately, the
       intermediate addresses generated for adjacent some stack slots can
       be made identical, and thus be shared.
  
!      _Note_: This macro should be used with caution.  It is necessary
!      to know something of how reload works in order to effectively use
!      this, and it is quite easy to produce macros that build in too
!      much knowledge of reload internals.
  
       _Note_: This macro must be able to reload an address created by a
       previous invocation of this macro.  If it fails to handle such
       addresses then the compiler may generate incorrect code or abort.
  
!      The macro definition should use `push_reload' to indicate parts
       that need reloading; OPNUM, TYPE and IND_LEVELS are usually
!      suitable to be passed unaltered to `push_reload'.
  
       The code generated by this macro must not alter the substructure of
       X.  If it transforms X into a more legitimate form, it should
       assign X (which will always be a C variable) a new value.  This
       also applies to parts that you change indirectly by calling
!      `push_reload'.
  
!      The macro definition may use `strict_memory_address_p' to test if
       the address has become legitimate.
  
       If you want to change only a part of X, one standard way of doing
!      this is to use `copy_rtx'.  Note, however, that it unshares only a
       single level of rtl.  Thus, if the part to be changed is not at the
       top level, you'll need to replace first the top level.  It is not
!      necessary for this macro to come up with a legitimate address;
!      but often a machine-dependent strategy can generate better code.
  
   -- Target Hook: bool TARGET_MODE_DEPENDENT_ADDRESS_P (const_rtx ADDR,
            addr_space_t ADDRSPACE)
!      This hook returns `true' if memory address ADDR in address space
!      ADDRSPACE can have different meanings depending on the machine
!      mode of the memory reference it is used for or if the address is
!      valid for some modes but not others.
  
       Autoincrement and autodecrement addresses typically have
       mode-dependent effects because the amount of the increment or
--- 32835,32908 ----
       This hook is given an invalid memory address X for an operand of
       mode MODE and should try to return a valid memory address.
  
!      X will always be the result of a call to 'break_out_memory_refs',
       and OLDX will be the operand that was given to that function to
       produce X.
  
!      The code of the hook should not alter the substructure of X.  If it
!      transforms X into a more legitimate form, it should return the new
!      X.
  
       It is not necessary for this hook to come up with a legitimate
!      address, with the exception of native TLS addresses (*note Emulated
!      TLS::).  The compiler has standard ways of doing so in all cases.
!      In fact, if the target supports only emulated TLS, it is safe to
!      omit this hook or make it return X if it cannot find a valid way to
!      legitimize the address.  But often a machine-dependent strategy can
!      generate better code.
  
   -- Macro: LEGITIMIZE_RELOAD_ADDRESS (X, MODE, OPNUM, TYPE, IND_LEVELS,
            WIN)
       A C compound statement that attempts to replace X, which is an
       address that needs reloading, with a valid memory address for an
!      operand of mode MODE.  WIN will be a C statement label elsewhere in
!      the code.  It is not necessary to define this macro, but it might
!      be useful for performance reasons.
  
       For example, on the i386, it is sometimes possible to use a single
       reload register instead of two by reloading a sum of two pseudo
       registers into a register.  On the other hand, for number of RISC
       processors offsets are limited so that often an intermediate
!      address needs to be generated in order to address a stack slot.  By
!      defining 'LEGITIMIZE_RELOAD_ADDRESS' appropriately, the
       intermediate addresses generated for adjacent some stack slots can
       be made identical, and thus be shared.
  
!      _Note_: This macro should be used with caution.  It is necessary to
!      know something of how reload works in order to effectively use
!      this, and it is quite easy to produce macros that build in too much
!      knowledge of reload internals.
  
       _Note_: This macro must be able to reload an address created by a
       previous invocation of this macro.  If it fails to handle such
       addresses then the compiler may generate incorrect code or abort.
  
!      The macro definition should use 'push_reload' to indicate parts
       that need reloading; OPNUM, TYPE and IND_LEVELS are usually
!      suitable to be passed unaltered to 'push_reload'.
  
       The code generated by this macro must not alter the substructure of
       X.  If it transforms X into a more legitimate form, it should
       assign X (which will always be a C variable) a new value.  This
       also applies to parts that you change indirectly by calling
!      'push_reload'.
  
!      The macro definition may use 'strict_memory_address_p' to test if
       the address has become legitimate.
  
       If you want to change only a part of X, one standard way of doing
!      this is to use 'copy_rtx'.  Note, however, that it unshares only a
       single level of rtl.  Thus, if the part to be changed is not at the
       top level, you'll need to replace first the top level.  It is not
!      necessary for this macro to come up with a legitimate address; but
!      often a machine-dependent strategy can generate better code.
  
   -- Target Hook: bool TARGET_MODE_DEPENDENT_ADDRESS_P (const_rtx ADDR,
            addr_space_t ADDRSPACE)
!      This hook returns 'true' if memory address ADDR in address space
!      ADDRSPACE can have different meanings depending on the machine mode
!      of the memory reference it is used for or if the address is valid
!      for some modes but not others.
  
       Autoincrement and autodecrement addresses typically have
       mode-dependent effects because the amount of the increment or
*************** This is about addressing modes.
*** 33325,33348 ****
  
       You may assume that ADDR is a valid address for the machine.
  
!      The default version of this hook returns `false'.
  
   -- Target Hook: bool TARGET_LEGITIMATE_CONSTANT_P (machine_mode MODE,
            rtx X)
       This hook returns true if X is a legitimate constant for a
       MODE-mode immediate operand on the target machine.  You can assume
!      that X satisfies `CONSTANT_P', so you need not check this.
  
       The default definition returns true.
  
   -- Target Hook: rtx TARGET_DELEGITIMIZE_ADDRESS (rtx X)
       This hook is used to undo the possibly obfuscating effects of the
!      `LEGITIMIZE_ADDRESS' and `LEGITIMIZE_RELOAD_ADDRESS' target
!      macros.  Some backend implementations of these macros wrap symbol
!      references inside an `UNSPEC' rtx to represent PIC or similar
!      addressing modes.  This target hook allows GCC's optimizers to
!      understand the semantics of these opaque `UNSPEC's by converting
!      them back into their original form.
  
   -- Target Hook: bool TARGET_CONST_NOT_OK_FOR_DEBUG_P (rtx X)
       This hook should return true if X should not be emitted into debug
--- 32912,32935 ----
  
       You may assume that ADDR is a valid address for the machine.
  
!      The default version of this hook returns 'false'.
  
   -- Target Hook: bool TARGET_LEGITIMATE_CONSTANT_P (machine_mode MODE,
            rtx X)
       This hook returns true if X is a legitimate constant for a
       MODE-mode immediate operand on the target machine.  You can assume
!      that X satisfies 'CONSTANT_P', so you need not check this.
  
       The default definition returns true.
  
   -- Target Hook: rtx TARGET_DELEGITIMIZE_ADDRESS (rtx X)
       This hook is used to undo the possibly obfuscating effects of the
!      'LEGITIMIZE_ADDRESS' and 'LEGITIMIZE_RELOAD_ADDRESS' target macros.
!      Some backend implementations of these macros wrap symbol references
!      inside an 'UNSPEC' rtx to represent PIC or similar addressing
!      modes.  This target hook allows GCC's optimizers to understand the
!      semantics of these opaque 'UNSPEC's by converting them back into
!      their original form.
  
   -- Target Hook: bool TARGET_CONST_NOT_OK_FOR_DEBUG_P (rtx X)
       This hook should return true if X should not be emitted into debug
*************** This is about addressing modes.
*** 33365,33384 ****
   -- Target Hook: bool TARGET_USE_BLOCKS_FOR_CONSTANT_P (machine_mode
            MODE, const_rtx X)
       This hook should return true if pool entries for constant X can be
!      placed in an `object_block' structure.  MODE is the mode of X.
  
       The default version returns false for all constants.
  
   -- Target Hook: bool TARGET_USE_BLOCKS_FOR_DECL_P (const_tree DECL)
       This hook should return true if pool entries for DECL should be
!      placed in an `object_block' structure.
  
       The default version returns true for all decls.
  
   -- Target Hook: tree TARGET_BUILTIN_RECIPROCAL (tree FNDECL)
       This hook should return the DECL of a function that implements the
       reciprocal of the machine-specific builtin function FNDECL, or
!      `NULL_TREE' if such a function is not available.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD (void)
       This hook should return the DECL of a function F that given an
--- 32952,32971 ----
   -- Target Hook: bool TARGET_USE_BLOCKS_FOR_CONSTANT_P (machine_mode
            MODE, const_rtx X)
       This hook should return true if pool entries for constant X can be
!      placed in an 'object_block' structure.  MODE is the mode of X.
  
       The default version returns false for all constants.
  
   -- Target Hook: bool TARGET_USE_BLOCKS_FOR_DECL_P (const_tree DECL)
       This hook should return true if pool entries for DECL should be
!      placed in an 'object_block' structure.
  
       The default version returns true for all decls.
  
   -- Target Hook: tree TARGET_BUILTIN_RECIPROCAL (tree FNDECL)
       This hook should return the DECL of a function that implements the
       reciprocal of the machine-specific builtin function FNDECL, or
!      'NULL_TREE' if such a function is not available.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD (void)
       This hook should return the DECL of a function F that given an
*************** This is about addressing modes.
*** 33388,33409 ****
  
       The autovectorizer, when vectorizing a load operation from an
       address ADDR that may be unaligned, will generate two vector loads
!      from the two aligned addresses around ADDR. It then generates a
!      `REALIGN_LOAD' operation to extract the relevant data from the two
!      loaded vectors. The first two arguments to `REALIGN_LOAD', V1 and
       V2, are the two vectors, each of size VS, and the third argument,
!      OFF, defines how the data will be extracted from these two
!      vectors: if OFF is 0, then the returned vector is V2; otherwise,
!      the returned vector is composed from the last VS-OFF elements of
!      V1 concatenated to the first OFF elements of V2.
  
!      If this hook is defined, the autovectorizer will generate a call
!      to F (using the DECL tree that this hook returns) and will use the
!      return value of F as the argument OFF to `REALIGN_LOAD'.
       Therefore, the mask M returned by F should comply with the
!      semantics expected by `REALIGN_LOAD' described above.  If this
!      hook is not defined, then ADDR will be used as the argument OFF to
!      `REALIGN_LOAD', in which case the low log2(VS) - 1 bits of ADDR
       will be considered.
  
   -- Target Hook: int TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST (enum
--- 32975,32996 ----
  
       The autovectorizer, when vectorizing a load operation from an
       address ADDR that may be unaligned, will generate two vector loads
!      from the two aligned addresses around ADDR.  It then generates a
!      'REALIGN_LOAD' operation to extract the relevant data from the two
!      loaded vectors.  The first two arguments to 'REALIGN_LOAD', V1 and
       V2, are the two vectors, each of size VS, and the third argument,
!      OFF, defines how the data will be extracted from these two vectors:
!      if OFF is 0, then the returned vector is V2; otherwise, the
!      returned vector is composed from the last VS-OFF elements of V1
!      concatenated to the first OFF elements of V2.
  
!      If this hook is defined, the autovectorizer will generate a call to
!      F (using the DECL tree that this hook returns) and will use the
!      return value of F as the argument OFF to 'REALIGN_LOAD'.
       Therefore, the mask M returned by F should comply with the
!      semantics expected by 'REALIGN_LOAD' described above.  If this hook
!      is not defined, then ADDR will be used as the argument OFF to
!      'REALIGN_LOAD', in which case the low log2(VS) - 1 bits of ADDR
       will be considered.
  
   -- Target Hook: int TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST (enum
*************** This is about addressing modes.
*** 33420,33451 ****
  
   -- Target Hook: bool TARGET_VECTORIZE_VEC_PERM_CONST_OK (machine_mode,
            const unsigned char *SEL)
!      Return true if a vector created for `vec_perm_const' is valid.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_CONVERSION (unsigned
            CODE, tree DEST_TYPE, tree SRC_TYPE)
       This hook should return the DECL of a function that implements
       conversion of the input vector of type SRC_TYPE to type DEST_TYPE.
!      The value of CODE is one of the enumerators in `enum tree_code' and
       specifies how the conversion is to be applied (truncation,
       rounding, etc.).
  
       If this hook is defined, the autovectorizer will use the
!      `TARGET_VECTORIZE_BUILTIN_CONVERSION' target hook when vectorizing
!      conversion. Otherwise, it will return `NULL_TREE'.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION
            (unsigned CODE, tree VEC_TYPE_OUT, tree VEC_TYPE_IN)
       This hook should return the decl of a function that implements the
!      vectorized variant of the function with the `combined_fn' code
!      CODE or `NULL_TREE' if such a function is not available.  The
!      return type of the vectorized function shall be of vector type
       VEC_TYPE_OUT and the argument types should be VEC_TYPE_IN.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_MD_VECTORIZED_FUNCTION
            (tree FNDECL, tree VEC_TYPE_OUT, tree VEC_TYPE_IN)
       This hook should return the decl of a function that implements the
!      vectorized variant of target built-in function `fndecl'.  The
       return type of the vectorized function shall be of vector type
       VEC_TYPE_OUT and the argument types should be VEC_TYPE_IN.
  
--- 33007,33038 ----
  
   -- Target Hook: bool TARGET_VECTORIZE_VEC_PERM_CONST_OK (machine_mode,
            const unsigned char *SEL)
!      Return true if a vector created for 'vec_perm_const' is valid.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_CONVERSION (unsigned
            CODE, tree DEST_TYPE, tree SRC_TYPE)
       This hook should return the DECL of a function that implements
       conversion of the input vector of type SRC_TYPE to type DEST_TYPE.
!      The value of CODE is one of the enumerators in 'enum tree_code' and
       specifies how the conversion is to be applied (truncation,
       rounding, etc.).
  
       If this hook is defined, the autovectorizer will use the
!      'TARGET_VECTORIZE_BUILTIN_CONVERSION' target hook when vectorizing
!      conversion.  Otherwise, it will return 'NULL_TREE'.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION
            (unsigned CODE, tree VEC_TYPE_OUT, tree VEC_TYPE_IN)
       This hook should return the decl of a function that implements the
!      vectorized variant of the function with the 'combined_fn' code CODE
!      or 'NULL_TREE' if such a function is not available.  The return
!      type of the vectorized function shall be of vector type
       VEC_TYPE_OUT and the argument types should be VEC_TYPE_IN.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_MD_VECTORIZED_FUNCTION
            (tree FNDECL, tree VEC_TYPE_OUT, tree VEC_TYPE_IN)
       This hook should return the decl of a function that implements the
!      vectorized variant of target built-in function 'fndecl'.  The
       return type of the vectorized function shall be of vector type
       VEC_TYPE_OUT and the argument types should be VEC_TYPE_IN.
  
*************** This is about addressing modes.
*** 33462,33476 ****
   -- Target Hook: machine_mode TARGET_VECTORIZE_PREFERRED_SIMD_MODE
            (machine_mode MODE)
       This hook should return the preferred mode for vectorizing scalar
!      mode MODE.  The default is equal to `word_mode', because the
       vectorizer can do some transformations even in absence of
       specialized SIMD hardware.
  
   -- Target Hook: unsigned int
! TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES (void)
       This hook should return a mask of sizes that should be iterated
       over after trying to autovectorize using the vector size derived
!      from the mode returned by `TARGET_VECTORIZE_PREFERRED_SIMD_MODE'.
       The default is zero which means to not iterate over other vector
       sizes.
  
--- 33049,33063 ----
   -- Target Hook: machine_mode TARGET_VECTORIZE_PREFERRED_SIMD_MODE
            (machine_mode MODE)
       This hook should return the preferred mode for vectorizing scalar
!      mode MODE.  The default is equal to 'word_mode', because the
       vectorizer can do some transformations even in absence of
       specialized SIMD hardware.
  
   -- Target Hook: unsigned int
!           TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES (void)
       This hook should return a mask of sizes that should be iterated
       over after trying to autovectorize using the vector size derived
!      from the mode returned by 'TARGET_VECTORIZE_PREFERRED_SIMD_MODE'.
       The default is zero which means to not iterate over other vector
       sizes.
  
*************** TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SI
*** 33485,33533 ****
       This hook should initialize target-specific data structures in
       preparation for modeling the costs of vectorizing a loop or basic
       block.  The default allocates three unsigned integers for
!      accumulating costs for the prologue, body, and epilogue of the
!      loop or basic block.  If LOOP_INFO is non-NULL, it identifies the
!      loop being vectorized; otherwise a single block is being
!      vectorized.
  
   -- Target Hook: unsigned TARGET_VECTORIZE_ADD_STMT_COST (void *DATA,
!           int COUNT, enum vect_cost_for_stmt KIND, struct
!           _stmt_vec_info *STMT_INFO, int MISALIGN, enum
!           vect_cost_model_location WHERE)
       This hook should update the target-specific DATA in response to
       adding COUNT copies of the given KIND of statement to a loop or
       basic block.  The default adds the builtin vectorizer cost for the
!      copies of the statement to the accumulator specified by WHERE,
!      (the prologue, body, or epilogue) and returns the amount added.
!      The return value should be viewed as a tentative cost that may
!      later be revised.
  
!  -- Target Hook: void TARGET_VECTORIZE_FINISH_COST (void *DATA,
!           unsigned *PROLOGUE_COST, unsigned *BODY_COST, unsigned
!           *EPILOGUE_COST)
!      This hook should complete calculations of the cost of vectorizing
!      a loop or basic block based on DATA, and return the prologue,
!      body, and epilogue costs as unsigned integers.  The default
!      returns the value of the three accumulators.
  
   -- Target Hook: void TARGET_VECTORIZE_DESTROY_COST_DATA (void *DATA)
       This hook should release DATA and any related data structures
!      allocated by TARGET_VECTORIZE_INIT_COST.  The default releases the
       accumulator.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_GATHER (const_tree
            MEM_VECTYPE, const_tree INDEX_TYPE, int SCALE)
       Target builtin that implements vector gather operation.
!      MEM_VECTYPE is the vector type of the load and INDEX_TYPE is
!      scalar type of the index, scaled by SCALE.  The default is
!      `NULL_TREE' which means to not vectorize gather loads.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_SCATTER (const_tree
            VECTYPE, const_tree INDEX_TYPE, int SCALE)
       Target builtin that implements vector scatter operation.  VECTYPE
       is the vector type of the store and INDEX_TYPE is scalar type of
!      the index, scaled by SCALE.  The default is `NULL_TREE' which
!      means to not vectorize scatter stores.
  
   -- Target Hook: int TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN
            (struct cgraph_node *, struct cgraph_simd_clone *, TREE, INT)
--- 33072,33117 ----
       This hook should initialize target-specific data structures in
       preparation for modeling the costs of vectorizing a loop or basic
       block.  The default allocates three unsigned integers for
!      accumulating costs for the prologue, body, and epilogue of the loop
!      or basic block.  If LOOP_INFO is non-NULL, it identifies the loop
!      being vectorized; otherwise a single block is being vectorized.
  
   -- Target Hook: unsigned TARGET_VECTORIZE_ADD_STMT_COST (void *DATA,
!           int COUNT, enum vect_cost_for_stmt KIND, struct _stmt_vec_info
!           *STMT_INFO, int MISALIGN, enum vect_cost_model_location WHERE)
       This hook should update the target-specific DATA in response to
       adding COUNT copies of the given KIND of statement to a loop or
       basic block.  The default adds the builtin vectorizer cost for the
!      copies of the statement to the accumulator specified by WHERE, (the
!      prologue, body, or epilogue) and returns the amount added.  The
!      return value should be viewed as a tentative cost that may later be
!      revised.
  
!  -- Target Hook: void TARGET_VECTORIZE_FINISH_COST (void *DATA, unsigned
!           *PROLOGUE_COST, unsigned *BODY_COST, unsigned *EPILOGUE_COST)
!      This hook should complete calculations of the cost of vectorizing a
!      loop or basic block based on DATA, and return the prologue, body,
!      and epilogue costs as unsigned integers.  The default returns the
!      value of the three accumulators.
  
   -- Target Hook: void TARGET_VECTORIZE_DESTROY_COST_DATA (void *DATA)
       This hook should release DATA and any related data structures
!      allocated by TARGET_VECTORIZE_INIT_COST. The default releases the
       accumulator.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_GATHER (const_tree
            MEM_VECTYPE, const_tree INDEX_TYPE, int SCALE)
       Target builtin that implements vector gather operation.
!      MEM_VECTYPE is the vector type of the load and INDEX_TYPE is scalar
!      type of the index, scaled by SCALE.  The default is 'NULL_TREE'
!      which means to not vectorize gather loads.
  
   -- Target Hook: tree TARGET_VECTORIZE_BUILTIN_SCATTER (const_tree
            VECTYPE, const_tree INDEX_TYPE, int SCALE)
       Target builtin that implements vector scatter operation.  VECTYPE
       is the vector type of the store and INDEX_TYPE is scalar type of
!      the index, scaled by SCALE.  The default is 'NULL_TREE' which means
!      to not vectorize scatter stores.
  
   -- Target Hook: int TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN
            (struct cgraph_node *, struct cgraph_simd_clone *, TREE, INT)
*************** TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SI
*** 33538,33544 ****
       variants that should be emitted.
  
   -- Target Hook: void TARGET_SIMD_CLONE_ADJUST (struct cgraph_node *)
!      This hook should add implicit `attribute(target("..."))' attribute
       to SIMD clone NODE if needed.
  
   -- Target Hook: int TARGET_SIMD_CLONE_USABLE (struct cgraph_node *)
--- 33122,33128 ----
       variants that should be emitted.
  
   -- Target Hook: void TARGET_SIMD_CLONE_ADJUST (struct cgraph_node *)
!      This hook should add implicit 'attribute(target("..."))' attribute
       to SIMD clone NODE if needed.
  
   -- Target Hook: int TARGET_SIMD_CLONE_USABLE (struct cgraph_node *)
*************** TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SI
*** 33552,33564 ****
       This hook should check the launch dimensions provided for an
       OpenACC compute region, or routine.  Defaulted values are
       represented as -1 and non-constant values as 0.  The FN_LEVEL is
!      negative for the function corresponding to the compute region.
!      For a routine is is the outermost level at which partitioned
!      execution may be spawned.  The hook should verify non-default
!      values.  If DECL is NULL, global defaults are being validated and
!      unspecified defaults should be filled in.  Diagnostics should be
!      issued as appropriate.  Return true, if changes have been made.
!      You must override this hook to provide dimensions larger than 1.
  
   -- Target Hook: int TARGET_GOACC_DIM_LIMIT (int AXIS)
       This hook should return the maximum size of a particular dimension,
--- 33136,33148 ----
       This hook should check the launch dimensions provided for an
       OpenACC compute region, or routine.  Defaulted values are
       represented as -1 and non-constant values as 0.  The FN_LEVEL is
!      negative for the function corresponding to the compute region.  For
!      a routine is is the outermost level at which partitioned execution
!      may be spawned.  The hook should verify non-default values.  If
!      DECL is NULL, global defaults are being validated and unspecified
!      defaults should be filled in.  Diagnostics should be issued as
!      appropriate.  Return true, if changes have been made.  You must
!      override this hook to provide dimensions larger than 1.
  
   -- Target Hook: int TARGET_GOACC_DIM_LIMIT (int AXIS)
       This hook should return the maximum size of a particular dimension,
*************** example, if we have:
*** 33595,33602 ****
       static int a, b, c;
       int foo (void) { return a + b + c; }
  
!  the code for `foo' will usually calculate three separate symbolic
! addresses: those of `a', `b' and `c'.  On some targets, it would be
  better to calculate just one symbolic address and access the three
  variables relative to it.  The equivalent pseudocode would be something
  like:
--- 33179,33186 ----
       static int a, b, c;
       int foo (void) { return a + b + c; }
  
!  the code for 'foo' will usually calculate three separate symbolic
! addresses: those of 'a', 'b' and 'c'.  On some targets, it would be
  better to calculate just one symbolic address and access the three
  variables relative to it.  The equivalent pseudocode would be something
  like:
*************** like:
*** 33607,33619 ****
         return xr[&a - &x] + xr[&b - &x] + xr[&c - &x];
       }
  
!  (which isn't valid C).  We refer to shared addresses like `x' as
! "section anchors".  Their use is controlled by `-fsection-anchors'.
  
   The hooks below describe the target properties that GCC needs to know
! in order to make effective use of section anchors.  It won't use
! section anchors at all unless either `TARGET_MIN_ANCHOR_OFFSET' or
! `TARGET_MAX_ANCHOR_OFFSET' is set to a nonzero value.
  
   -- Target Hook: HOST_WIDE_INT TARGET_MIN_ANCHOR_OFFSET
       The minimum offset that should be applied to a section anchor.  On
--- 33191,33203 ----
         return xr[&a - &x] + xr[&b - &x] + xr[&c - &x];
       }
  
!  (which isn't valid C). We refer to shared addresses like 'x' as
! "section anchors".  Their use is controlled by '-fsection-anchors'.
  
   The hooks below describe the target properties that GCC needs to know
! in order to make effective use of section anchors.  It won't use section
! anchors at all unless either 'TARGET_MIN_ANCHOR_OFFSET' or
! 'TARGET_MAX_ANCHOR_OFFSET' is set to a nonzero value.
  
   -- Target Hook: HOST_WIDE_INT TARGET_MIN_ANCHOR_OFFSET
       The minimum offset that should be applied to a section anchor.  On
*************** section anchors at all unless either `TA
*** 33622,33649 ****
       every mode.  The default value is 0.
  
   -- Target Hook: HOST_WIDE_INT TARGET_MAX_ANCHOR_OFFSET
!      Like `TARGET_MIN_ANCHOR_OFFSET', but the maximum (inclusive)
!      offset that should be applied to section anchors.  The default
!      value is 0.
  
   -- Target Hook: void TARGET_ASM_OUTPUT_ANCHOR (rtx X)
       Write the assembly code to define section anchor X, which is a
!      `SYMBOL_REF' for which `SYMBOL_REF_ANCHOR_P (X)' is true.  The
!      hook is called with the assembly output position set to the
!      beginning of `SYMBOL_REF_BLOCK (X)'.
  
!      If `ASM_OUTPUT_DEF' is available, the hook's default definition
!      uses it to define the symbol as `. + SYMBOL_REF_BLOCK_OFFSET (X)'.
!      If `ASM_OUTPUT_DEF' is not available, the hook's default definition
!      is `NULL', which disables the use of section anchors altogether.
  
   -- Target Hook: bool TARGET_USE_ANCHORS_FOR_SYMBOL_P (const_rtx X)
       Return true if GCC should attempt to use anchors to access
!      `SYMBOL_REF' X.  You can assume `SYMBOL_REF_HAS_BLOCK_INFO_P (X)'
!      and `!SYMBOL_REF_ANCHOR_P (X)'.
  
!      The default version is correct for most targets, but you might
!      need to intercept this hook to handle things like target-specific
       attributes or target-specific sections.
  
  
--- 33206,33232 ----
       every mode.  The default value is 0.
  
   -- Target Hook: HOST_WIDE_INT TARGET_MAX_ANCHOR_OFFSET
!      Like 'TARGET_MIN_ANCHOR_OFFSET', but the maximum (inclusive) offset
!      that should be applied to section anchors.  The default value is 0.
  
   -- Target Hook: void TARGET_ASM_OUTPUT_ANCHOR (rtx X)
       Write the assembly code to define section anchor X, which is a
!      'SYMBOL_REF' for which 'SYMBOL_REF_ANCHOR_P (X)' is true.  The hook
!      is called with the assembly output position set to the beginning of
!      'SYMBOL_REF_BLOCK (X)'.
  
!      If 'ASM_OUTPUT_DEF' is available, the hook's default definition
!      uses it to define the symbol as '. + SYMBOL_REF_BLOCK_OFFSET (X)'.
!      If 'ASM_OUTPUT_DEF' is not available, the hook's default definition
!      is 'NULL', which disables the use of section anchors altogether.
  
   -- Target Hook: bool TARGET_USE_ANCHORS_FOR_SYMBOL_P (const_rtx X)
       Return true if GCC should attempt to use anchors to access
!      'SYMBOL_REF' X.  You can assume 'SYMBOL_REF_HAS_BLOCK_INFO_P (X)'
!      and '!SYMBOL_REF_ANCHOR_P (X)'.
  
!      The default version is correct for most targets, but you might need
!      to intercept this hook to handle things like target-specific
       attributes or target-specific sections.
  
  
*************** File: gccint.info,  Node: Condition Code
*** 33655,33673 ****
  The macros in this section can be split in two families, according to
  the two ways of representing condition codes in GCC.
  
!  The first representation is the so called `(cc0)' representation
! (*note Jump Patterns::), where all instructions can have an implicit
! clobber of the condition codes.  The second is the condition code
! register representation, which provides better schedulability for
! architectures that do have a condition code register, but on which most
! instructions do not affect it.  The latter category includes most RISC
! machines.
  
   The implicit clobbering poses a strong restriction on the placement of
  the definition and use of the condition code.  In the past the
  definition and use were always adjacent.  However, recent changes to
  support trapping arithmatic may result in the definition and user being
! in different blocks.  Thus, there may be a `NOTE_INSN_BASIC_BLOCK'
  between them.  Additionally, the definition may be the source of
  exception handling edges.
  
--- 33238,33255 ----
  The macros in this section can be split in two families, according to
  the two ways of representing condition codes in GCC.
  
!  The first representation is the so called '(cc0)' representation (*note
! Jump Patterns::), where all instructions can have an implicit clobber of
! the condition codes.  The second is the condition code register
! representation, which provides better schedulability for architectures
! that do have a condition code register, but on which most instructions
! do not affect it.  The latter category includes most RISC machines.
  
   The implicit clobbering poses a strong restriction on the placement of
  the definition and use of the condition code.  In the past the
  definition and use were always adjacent.  However, recent changes to
  support trapping arithmatic may result in the definition and user being
! in different blocks.  Thus, there may be a 'NOTE_INSN_BASIC_BLOCK'
  between them.  Additionally, the definition may be the source of
  exception handling edges.
  
*************** represent the condition code for new por
*** 33683,33692 ****
  condition code register in the machine, use a hard register.  If the
  condition code or comparison result can be placed in any general
  register, or if there are multiple condition registers, use a pseudo
! register.  Registers used to store the condition code value will
! usually have a mode that is in class `MODE_CC'.
  
!  Alternatively, you can use `BImode' if the comparison operator is
  specified already in the compare instruction.  In this case, you are not
  interested in most macros in this section.
  
--- 33265,33274 ----
  condition code register in the machine, use a hard register.  If the
  condition code or comparison result can be placed in any general
  register, or if there are multiple condition registers, use a pseudo
! register.  Registers used to store the condition code value will usually
! have a mode that is in class 'MODE_CC'.
  
!  Alternatively, you can use 'BImode' if the comparison operator is
  specified already in the compare instruction.  In this case, you are not
  interested in most macros in this section.
  
*************** interested in most macros in this sectio
*** 33698,33707 ****
  
  File: gccint.info,  Node: CC0 Condition Codes,  Next: MODE_CC Condition Codes,  Up: Condition Code
  
! 17.15.1 Representation of condition codes using `(cc0)'
  -------------------------------------------------------
  
! The file `conditions.h' defines a variable `cc_status' to describe how
  the condition code was computed (in case the interpretation of the
  condition code depends on the instruction that it was set by).  This
  variable contains the RTL expressions on which the condition code is
--- 33280,33289 ----
  
  File: gccint.info,  Node: CC0 Condition Codes,  Next: MODE_CC Condition Codes,  Up: Condition Code
  
! 17.15.1 Representation of condition codes using '(cc0)'
  -------------------------------------------------------
  
! The file 'conditions.h' defines a variable 'cc_status' to describe how
  the condition code was computed (in case the interpretation of the
  condition code depends on the instruction that it was set by).  This
  variable contains the RTL expressions on which the condition code is
*************** currently based, and several standard fl
*** 33709,33764 ****
  
   Sometimes additional machine-specific flags must be defined in the
  machine description header file.  It can also add additional
! machine-specific information by defining `CC_STATUS_MDEP'.
  
   -- Macro: CC_STATUS_MDEP
!      C code for a data type which is used for declaring the `mdep'
!      component of `cc_status'.  It defaults to `int'.
  
!      This macro is not used on machines that do not use `cc0'.
  
   -- Macro: CC_STATUS_MDEP_INIT
!      A C expression to initialize the `mdep' field to "empty".  The
       default definition does nothing, since most machines don't use the
       field anyway.  If you want to use the field, you should probably
       define this macro to initialize it.
  
!      This macro is not used on machines that do not use `cc0'.
  
   -- Macro: NOTICE_UPDATE_CC (EXP, INSN)
!      A C compound statement to set the components of `cc_status'
       appropriately for an insn INSN whose body is EXP.  It is this
       macro's responsibility to recognize insns that set the condition
       code as a byproduct of other activity as well as those that
!      explicitly set `(cc0)'.
  
!      This macro is not used on machines that do not use `cc0'.
  
       If there are insns that do not set the condition code but do alter
       other machine registers, this macro must check to see whether they
       invalidate the expressions that the condition code is recorded as
       reflecting.  For example, on the 68000, insns that store in address
       registers do not set the condition code, which means that usually
!      `NOTICE_UPDATE_CC' can leave `cc_status' unaltered for such insns.
       But suppose that the previous insn set the condition code based on
!      location `a4@(102)' and the current insn stores a new value in
!      `a4'.  Although the condition code is not changed by this, it will
!      no longer be true that it reflects the contents of `a4@(102)'.
!      Therefore, `NOTICE_UPDATE_CC' must alter `cc_status' in this case
       to say that nothing is known about the condition code value.
  
!      The definition of `NOTICE_UPDATE_CC' must be prepared to deal with
       the results of peephole optimization: insns whose patterns are
!      `parallel' RTXs containing various `reg', `mem' or constants which
       are just the operands.  The RTL structure of these insns is not
       sufficient to indicate what the insns actually do.  What
!      `NOTICE_UPDATE_CC' should do when it sees one is just to run
!      `CC_STATUS_INIT'.
  
!      A possible definition of `NOTICE_UPDATE_CC' is to call a function
       that looks at an attribute (*note Insn Attributes::) named, for
!      example, `cc'.  This avoids having detailed information about
!      patterns in two places, the `md' file and in `NOTICE_UPDATE_CC'.
  
  
  File: gccint.info,  Node: MODE_CC Condition Codes,  Prev: CC0 Condition Codes,  Up: Condition Code
--- 33291,33346 ----
  
   Sometimes additional machine-specific flags must be defined in the
  machine description header file.  It can also add additional
! machine-specific information by defining 'CC_STATUS_MDEP'.
  
   -- Macro: CC_STATUS_MDEP
!      C code for a data type which is used for declaring the 'mdep'
!      component of 'cc_status'.  It defaults to 'int'.
  
!      This macro is not used on machines that do not use 'cc0'.
  
   -- Macro: CC_STATUS_MDEP_INIT
!      A C expression to initialize the 'mdep' field to "empty".  The
       default definition does nothing, since most machines don't use the
       field anyway.  If you want to use the field, you should probably
       define this macro to initialize it.
  
!      This macro is not used on machines that do not use 'cc0'.
  
   -- Macro: NOTICE_UPDATE_CC (EXP, INSN)
!      A C compound statement to set the components of 'cc_status'
       appropriately for an insn INSN whose body is EXP.  It is this
       macro's responsibility to recognize insns that set the condition
       code as a byproduct of other activity as well as those that
!      explicitly set '(cc0)'.
  
!      This macro is not used on machines that do not use 'cc0'.
  
       If there are insns that do not set the condition code but do alter
       other machine registers, this macro must check to see whether they
       invalidate the expressions that the condition code is recorded as
       reflecting.  For example, on the 68000, insns that store in address
       registers do not set the condition code, which means that usually
!      'NOTICE_UPDATE_CC' can leave 'cc_status' unaltered for such insns.
       But suppose that the previous insn set the condition code based on
!      location 'a4@(102)' and the current insn stores a new value in
!      'a4'.  Although the condition code is not changed by this, it will
!      no longer be true that it reflects the contents of 'a4@(102)'.
!      Therefore, 'NOTICE_UPDATE_CC' must alter 'cc_status' in this case
       to say that nothing is known about the condition code value.
  
!      The definition of 'NOTICE_UPDATE_CC' must be prepared to deal with
       the results of peephole optimization: insns whose patterns are
!      'parallel' RTXs containing various 'reg', 'mem' or constants which
       are just the operands.  The RTL structure of these insns is not
       sufficient to indicate what the insns actually do.  What
!      'NOTICE_UPDATE_CC' should do when it sees one is just to run
!      'CC_STATUS_INIT'.
  
!      A possible definition of 'NOTICE_UPDATE_CC' is to call a function
       that looks at an attribute (*note Insn Attributes::) named, for
!      example, 'cc'.  This avoids having detailed information about
!      patterns in two places, the 'md' file and in 'NOTICE_UPDATE_CC'.
  
  
  File: gccint.info,  Node: MODE_CC Condition Codes,  Prev: CC0 Condition Codes,  Up: Condition Code
*************** File: gccint.info,  Node: MODE_CC Condit
*** 33768,33790 ****
  
   -- Macro: SELECT_CC_MODE (OP, X, Y)
       On many machines, the condition code may be produced by other
!      instructions than compares, for example the branch can use
!      directly the condition code set by a subtract instruction.
!      However, on some machines when the condition code is set this way
!      some bits (such as the overflow bit) are not set in the same way
!      as a test instruction, so that a different branch instruction must
!      be used for some conditional branches.  When this happens, use the
!      machine mode of the condition code register to record different
!      formats of the condition code register.  Modes can also be used to
!      record which compare instruction (e.g. a signed or an unsigned
       comparison) produced the condition codes.
  
!      If other modes than `CCmode' are required, add them to
!      `MACHINE-modes.def' and define `SELECT_CC_MODE' to choose a mode
       given an operand of a compare.  This is needed because the modes
       have to be chosen not only during RTL generation but also, for
       example, by instruction combination.  The result of
!      `SELECT_CC_MODE' should be consistent with the mode used in the
       patterns; for example to support the case of the add on the SPARC
       discussed above, we have the pattern
  
--- 33350,33372 ----
  
   -- Macro: SELECT_CC_MODE (OP, X, Y)
       On many machines, the condition code may be produced by other
!      instructions than compares, for example the branch can use directly
!      the condition code set by a subtract instruction.  However, on some
!      machines when the condition code is set this way some bits (such as
!      the overflow bit) are not set in the same way as a test
!      instruction, so that a different branch instruction must be used
!      for some conditional branches.  When this happens, use the machine
!      mode of the condition code register to record different formats of
!      the condition code register.  Modes can also be used to record
!      which compare instruction (e.g.  a signed or an unsigned
       comparison) produced the condition codes.
  
!      If other modes than 'CCmode' are required, add them to
!      'MACHINE-modes.def' and define 'SELECT_CC_MODE' to choose a mode
       given an operand of a compare.  This is needed because the modes
       have to be chosen not only during RTL generation but also, for
       example, by instruction combination.  The result of
!      'SELECT_CC_MODE' should be consistent with the mode used in the
       patterns; for example to support the case of the add on the SPARC
       discussed above, we have the pattern
  
*************** File: gccint.info,  Node: MODE_CC Condit
*** 33797,33804 ****
              ""
              "...")
  
!      together with a `SELECT_CC_MODE' that returns `CC_NOOVmode' for
!      comparisons whose argument is a `plus':
  
            #define SELECT_CC_MODE(OP,X,Y) \
              (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT           \
--- 33379,33386 ----
              ""
              "...")
  
!      together with a 'SELECT_CC_MODE' that returns 'CC_NOOVmode' for
!      comparisons whose argument is a 'plus':
  
            #define SELECT_CC_MODE(OP,X,Y) \
              (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT           \
*************** File: gccint.info,  Node: MODE_CC Condit
*** 33809,33853 ****
                  ? CC_NOOVmode : CCmode))
  
       Another reason to use modes is to retain information on which
!      operands were used by the comparison; see `REVERSIBLE_CC_MODE'
       later in this section.
  
       You should define this macro if and only if you define extra CC
!      modes in `MACHINE-modes.def'.
  
   -- Target Hook: void TARGET_CANONICALIZE_COMPARISON (int *CODE, rtx
            *OP0, rtx *OP1, bool OP0_PRESERVE_VALUE)
       On some machines not all possible comparisons are defined, but you
       can convert an invalid comparison into a valid one.  For example,
!      the Alpha does not have a `GT' comparison, but you can use an `LT'
       comparison instead and swap the order of the operands.
  
       On such machines, implement this hook to do any required
       conversions.  CODE is the initial comparison code and OP0 and OP1
       are the left and right operands of the comparison, respectively.
!      If OP0_PRESERVE_VALUE is `true' the implementation is not allowed
       to change the value of OP0 since the value might be used in RTXs
!      which aren't comparisons.  E.g. the implementation is not allowed
       to swap operands in that case.
  
       GCC will not assume that the comparison resulting from this macro
       is valid but will see if the resulting insn matches a pattern in
!      the `md' file.
  
       You need not to implement this hook if it would never change the
       comparison code or operands.
  
   -- Macro: REVERSIBLE_CC_MODE (MODE)
       A C expression whose value is one if it is always safe to reverse a
!      comparison whose mode is MODE.  If `SELECT_CC_MODE' can ever
!      return MODE for a floating-point inequality comparison, then
!      `REVERSIBLE_CC_MODE (MODE)' must be zero.
  
       You need not define this macro if it would always returns zero or
       if the floating-point format is anything other than
!      `IEEE_FLOAT_FORMAT'.  For example, here is the definition used on
       the SPARC, where floating-point inequality comparisons are given
!      either `CCFPEmode' or `CCFPmode':
  
            #define REVERSIBLE_CC_MODE(MODE) \
               ((MODE) != CCFPEmode && (MODE) != CCFPmode)
--- 33391,33435 ----
                  ? CC_NOOVmode : CCmode))
  
       Another reason to use modes is to retain information on which
!      operands were used by the comparison; see 'REVERSIBLE_CC_MODE'
       later in this section.
  
       You should define this macro if and only if you define extra CC
!      modes in 'MACHINE-modes.def'.
  
   -- Target Hook: void TARGET_CANONICALIZE_COMPARISON (int *CODE, rtx
            *OP0, rtx *OP1, bool OP0_PRESERVE_VALUE)
       On some machines not all possible comparisons are defined, but you
       can convert an invalid comparison into a valid one.  For example,
!      the Alpha does not have a 'GT' comparison, but you can use an 'LT'
       comparison instead and swap the order of the operands.
  
       On such machines, implement this hook to do any required
       conversions.  CODE is the initial comparison code and OP0 and OP1
       are the left and right operands of the comparison, respectively.
!      If OP0_PRESERVE_VALUE is 'true' the implementation is not allowed
       to change the value of OP0 since the value might be used in RTXs
!      which aren't comparisons.  E.g.  the implementation is not allowed
       to swap operands in that case.
  
       GCC will not assume that the comparison resulting from this macro
       is valid but will see if the resulting insn matches a pattern in
!      the 'md' file.
  
       You need not to implement this hook if it would never change the
       comparison code or operands.
  
   -- Macro: REVERSIBLE_CC_MODE (MODE)
       A C expression whose value is one if it is always safe to reverse a
!      comparison whose mode is MODE.  If 'SELECT_CC_MODE' can ever return
!      MODE for a floating-point inequality comparison, then
!      'REVERSIBLE_CC_MODE (MODE)' must be zero.
  
       You need not define this macro if it would always returns zero or
       if the floating-point format is anything other than
!      'IEEE_FLOAT_FORMAT'.  For example, here is the definition used on
       the SPARC, where floating-point inequality comparisons are given
!      either 'CCFPEmode' or 'CCFPmode':
  
            #define REVERSIBLE_CC_MODE(MODE) \
               ((MODE) != CCFPEmode && (MODE) != CCFPmode)
*************** File: gccint.info,  Node: MODE_CC Condit
*** 33855,33865 ****
   -- Macro: REVERSE_CONDITION (CODE, MODE)
       A C expression whose value is reversed condition code of the CODE
       for comparison done in CC_MODE MODE.  The macro is used only in
!      case `REVERSIBLE_CC_MODE (MODE)' is nonzero.  Define this macro in
       case machine has some non-standard way how to reverse certain
       conditionals.  For instance in case all floating point conditions
!      are non-trapping, compiler may freely convert unordered compares
!      to ordered ones.  Then definition may look like:
  
            #define REVERSE_CONDITION(CODE, MODE) \
               ((MODE) != CCFPmode ? reverse_condition (CODE) \
--- 33437,33447 ----
   -- Macro: REVERSE_CONDITION (CODE, MODE)
       A C expression whose value is reversed condition code of the CODE
       for comparison done in CC_MODE MODE.  The macro is used only in
!      case 'REVERSIBLE_CC_MODE (MODE)' is nonzero.  Define this macro in
       case machine has some non-standard way how to reverse certain
       conditionals.  For instance in case all floating point conditions
!      are non-trapping, compiler may freely convert unordered compares to
!      ordered ones.  Then definition may look like:
  
            #define REVERSE_CONDITION(CODE, MODE) \
               ((MODE) != CCFPmode ? reverse_condition (CODE) \
*************** File: gccint.info,  Node: MODE_CC Condit
*** 33867,33902 ****
  
   -- Target Hook: bool TARGET_FIXED_CONDITION_CODE_REGS (unsigned int
            *P1, unsigned int *P2)
!      On targets which do not use `(cc0)', and which use a hard register
       rather than a pseudo-register to hold condition codes, the regular
       CSE passes are often not able to identify cases in which the hard
!      register is set to a common value.  Use this hook to enable a
!      small pass which optimizes such cases.  This hook should return
!      true to enable this pass, and it should set the integers to which
!      its arguments point to the hard register numbers used for
!      condition codes.  When there is only one such register, as is true
!      on most systems, the integer pointed to by P2 should be set to
!      `INVALID_REGNUM'.
  
       The default version of this hook returns false.
  
   -- Target Hook: machine_mode TARGET_CC_MODES_COMPATIBLE (machine_mode
            M1, machine_mode M2)
       On targets which use multiple condition code modes in class
!      `MODE_CC', it is sometimes the case that a comparison can be
       validly done in more than one mode.  On such a system, define this
       target hook to take two mode arguments and to return a mode in
       which both comparisons may be validly done.  If there is no such
!      mode, return `VOIDmode'.
  
       The default version of this hook checks whether the modes are the
       same.  If they are, it returns that mode.  If they are different,
!      it returns `VOIDmode'.
  
   -- Target Hook: unsigned int TARGET_FLAGS_REGNUM
       If the target has a dedicated flags register, and it needs to use
!      the post-reload comparison elimination pass, then this value
!      should be set appropriately.
  
  
  File: gccint.info,  Node: Costs,  Next: Scheduling,  Prev: Condition Code,  Up: Target Macros
--- 33449,33484 ----
  
   -- Target Hook: bool TARGET_FIXED_CONDITION_CODE_REGS (unsigned int
            *P1, unsigned int *P2)
!      On targets which do not use '(cc0)', and which use a hard register
       rather than a pseudo-register to hold condition codes, the regular
       CSE passes are often not able to identify cases in which the hard
!      register is set to a common value.  Use this hook to enable a small
!      pass which optimizes such cases.  This hook should return true to
!      enable this pass, and it should set the integers to which its
!      arguments point to the hard register numbers used for condition
!      codes.  When there is only one such register, as is true on most
!      systems, the integer pointed to by P2 should be set to
!      'INVALID_REGNUM'.
  
       The default version of this hook returns false.
  
   -- Target Hook: machine_mode TARGET_CC_MODES_COMPATIBLE (machine_mode
            M1, machine_mode M2)
       On targets which use multiple condition code modes in class
!      'MODE_CC', it is sometimes the case that a comparison can be
       validly done in more than one mode.  On such a system, define this
       target hook to take two mode arguments and to return a mode in
       which both comparisons may be validly done.  If there is no such
!      mode, return 'VOIDmode'.
  
       The default version of this hook checks whether the modes are the
       same.  If they are, it returns that mode.  If they are different,
!      it returns 'VOIDmode'.
  
   -- Target Hook: unsigned int TARGET_FLAGS_REGNUM
       If the target has a dedicated flags register, and it needs to use
!      the post-reload comparison elimination pass, then this value should
!      be set appropriately.
  
  
  File: gccint.info,  Node: Costs,  Next: Scheduling,  Prev: Condition Code,  Up: Target Macros
*************** on the target machine.
*** 33910,33916 ****
   -- Macro: REGISTER_MOVE_COST (MODE, FROM, TO)
       A C expression for the cost of moving data of mode MODE from a
       register in class FROM to one in class TO.  The classes are
!      expressed using the enumeration values such as `GENERAL_REGS'.  A
       value of 2 is the default; other values are interpreted relative to
       that.
  
--- 33492,33498 ----
   -- Macro: REGISTER_MOVE_COST (MODE, FROM, TO)
       A C expression for the cost of moving data of mode MODE from a
       register in class FROM to one in class TO.  The classes are
!      expressed using the enumeration values such as 'GENERAL_REGS'.  A
       value of 2 is the default; other values are interpreted relative to
       that.
  
*************** on the target machine.
*** 33918,33939 ****
       same as TO; on some machines it is expensive to move between
       registers if they are not general registers.
  
!      If reload sees an insn consisting of a single `set' between two
!      hard registers, and if `REGISTER_MOVE_COST' applied to their
       classes returns a value of 2, reload does not check to ensure that
       the constraints of the insn are met.  Setting a cost of other than
       2 will allow reload to verify that the constraints are met.  You
!      should do this if the `movM' pattern's constraints do not allow
       such copying.
  
       These macros are obsolete, new ports should use the target hook
!      `TARGET_REGISTER_MOVE_COST' instead.
  
   -- Target Hook: int TARGET_REGISTER_MOVE_COST (machine_mode MODE,
            reg_class_t FROM, reg_class_t TO)
       This target hook should return the cost of moving data of mode MODE
       from a register in class FROM to one in class TO.  The classes are
!      expressed using the enumeration values such as `GENERAL_REGS'.  A
       value of 2 is the default; other values are interpreted relative to
       that.
  
--- 33500,33521 ----
       same as TO; on some machines it is expensive to move between
       registers if they are not general registers.
  
!      If reload sees an insn consisting of a single 'set' between two
!      hard registers, and if 'REGISTER_MOVE_COST' applied to their
       classes returns a value of 2, reload does not check to ensure that
       the constraints of the insn are met.  Setting a cost of other than
       2 will allow reload to verify that the constraints are met.  You
!      should do this if the 'movM' pattern's constraints do not allow
       such copying.
  
       These macros are obsolete, new ports should use the target hook
!      'TARGET_REGISTER_MOVE_COST' instead.
  
   -- Target Hook: int TARGET_REGISTER_MOVE_COST (machine_mode MODE,
            reg_class_t FROM, reg_class_t TO)
       This target hook should return the cost of moving data of mode MODE
       from a register in class FROM to one in class TO.  The classes are
!      expressed using the enumeration values such as 'GENERAL_REGS'.  A
       value of 2 is the default; other values are interpreted relative to
       that.
  
*************** on the target machine.
*** 33941,33952 ****
       same as TO; on some machines it is expensive to move between
       registers if they are not general registers.
  
!      If reload sees an insn consisting of a single `set' between two
!      hard registers, and if `TARGET_REGISTER_MOVE_COST' applied to their
       classes returns a value of 2, reload does not check to ensure that
       the constraints of the insn are met.  Setting a cost of other than
       2 will allow reload to verify that the constraints are met.  You
!      should do this if the `movM' pattern's constraints do not allow
       such copying.
  
       The default version of this function returns 2.
--- 33523,33534 ----
       same as TO; on some machines it is expensive to move between
       registers if they are not general registers.
  
!      If reload sees an insn consisting of a single 'set' between two
!      hard registers, and if 'TARGET_REGISTER_MOVE_COST' applied to their
       classes returns a value of 2, reload does not check to ensure that
       the constraints of the insn are met.  Setting a cost of other than
       2 will allow reload to verify that the constraints are met.  You
!      should do this if the 'movM' pattern's constraints do not allow
       such copying.
  
       The default version of this function returns 2.
*************** on the target machine.
*** 33954,33961 ****
   -- Macro: MEMORY_MOVE_COST (MODE, CLASS, IN)
       A C expression for the cost of moving data of mode MODE between a
       register of class CLASS and memory; IN is zero if the value is to
!      be written to memory, nonzero if it is to be read in.  This cost
!      is relative to those in `REGISTER_MOVE_COST'.  If moving between
       registers and memory is more expensive than between two registers,
       you should define this macro to express the relative cost.
  
--- 33536,33543 ----
   -- Macro: MEMORY_MOVE_COST (MODE, CLASS, IN)
       A C expression for the cost of moving data of mode MODE between a
       register of class CLASS and memory; IN is zero if the value is to
!      be written to memory, nonzero if it is to be read in.  This cost is
!      relative to those in 'REGISTER_MOVE_COST'.  If moving between
       registers and memory is more expensive than between two registers,
       you should define this macro to express the relative cost.
  
*************** on the target machine.
*** 33966,33991 ****
       mechanism is more complex than copying via an intermediate, define
       this macro to reflect the actual cost of the move.
  
!      GCC defines the function `memory_move_secondary_cost' if secondary
       reloads are needed.  It computes the costs due to copying via a
       secondary register.  If your machine copies from memory using a
       secondary register in the conventional way but the default base
       value of 4 is not correct for your machine, define this macro to
!      add some other value to the result of that function.  The
!      arguments to that function are the same as to this macro.
  
       These macros are obsolete, new ports should use the target hook
!      `TARGET_MEMORY_MOVE_COST' instead.
  
   -- Target Hook: int TARGET_MEMORY_MOVE_COST (machine_mode MODE,
            reg_class_t RCLASS, bool IN)
       This target hook should return the cost of moving data of mode MODE
!      between a register of class RCLASS and memory; IN is `false' if
!      the value is to be written to memory, `true' if it is to be read
!      in.  This cost is relative to those in `TARGET_REGISTER_MOVE_COST'.
!      If moving between registers and memory is more expensive than
!      between two registers, you should add this target hook to express
!      the relative cost.
  
       If you do not add this target hook, GCC uses a default cost of 4
       plus the cost of copying via a secondary reload register, if one is
--- 33548,33573 ----
       mechanism is more complex than copying via an intermediate, define
       this macro to reflect the actual cost of the move.
  
!      GCC defines the function 'memory_move_secondary_cost' if secondary
       reloads are needed.  It computes the costs due to copying via a
       secondary register.  If your machine copies from memory using a
       secondary register in the conventional way but the default base
       value of 4 is not correct for your machine, define this macro to
!      add some other value to the result of that function.  The arguments
!      to that function are the same as to this macro.
  
       These macros are obsolete, new ports should use the target hook
!      'TARGET_MEMORY_MOVE_COST' instead.
  
   -- Target Hook: int TARGET_MEMORY_MOVE_COST (machine_mode MODE,
            reg_class_t RCLASS, bool IN)
       This target hook should return the cost of moving data of mode MODE
!      between a register of class RCLASS and memory; IN is 'false' if the
!      value is to be written to memory, 'true' if it is to be read in.
!      This cost is relative to those in 'TARGET_REGISTER_MOVE_COST'.  If
!      moving between registers and memory is more expensive than between
!      two registers, you should add this target hook to express the
!      relative cost.
  
       If you do not add this target hook, GCC uses a default cost of 4
       plus the cost of copying via a secondary reload register, if one is
*************** on the target machine.
*** 33994,34015 ****
       mechanism is more complex than copying via an intermediate, use
       this target hook to reflect the actual cost of the move.
  
!      GCC defines the function `memory_move_secondary_cost' if secondary
       reloads are needed.  It computes the costs due to copying via a
       secondary register.  If your machine copies from memory using a
       secondary register in the conventional way but the default base
!      value of 4 is not correct for your machine, use this target hook
!      to add some other value to the result of that function.  The
!      arguments to that function are the same as to this target hook.
  
   -- Macro: BRANCH_COST (SPEED_P, PREDICTABLE_P)
       A C expression for the cost of a branch instruction.  A value of 1
       is the default; other values are interpreted relative to that.
       Parameter SPEED_P is true when the branch in question should be
!      optimized for speed.  When it is false, `BRANCH_COST' should
!      return a value optimal for code size rather than performance.
!      PREDICTABLE_P is true for well-predicted branches. On many
!      architectures the `BRANCH_COST' can be reduced then.
  
   Here are additional macros which do not specify precise relative costs,
  but only that certain actions are more expensive than GCC would
--- 33576,33597 ----
       mechanism is more complex than copying via an intermediate, use
       this target hook to reflect the actual cost of the move.
  
!      GCC defines the function 'memory_move_secondary_cost' if secondary
       reloads are needed.  It computes the costs due to copying via a
       secondary register.  If your machine copies from memory using a
       secondary register in the conventional way but the default base
!      value of 4 is not correct for your machine, use this target hook to
!      add some other value to the result of that function.  The arguments
!      to that function are the same as to this target hook.
  
   -- Macro: BRANCH_COST (SPEED_P, PREDICTABLE_P)
       A C expression for the cost of a branch instruction.  A value of 1
       is the default; other values are interpreted relative to that.
       Parameter SPEED_P is true when the branch in question should be
!      optimized for speed.  When it is false, 'BRANCH_COST' should return
!      a value optimal for code size rather than performance.
!      PREDICTABLE_P is true for well-predicted branches.  On many
!      architectures the 'BRANCH_COST' can be reduced then.
  
   Here are additional macros which do not specify precise relative costs,
  but only that certain actions are more expensive than GCC would
*************** ordinarily expect.
*** 34017,34023 ****
  
   -- Macro: SLOW_BYTE_ACCESS
       Define this macro as a C expression which is nonzero if accessing
!      less than a word of memory (i.e. a `char' or a `short') is no
       faster than accessing a word of memory, i.e., if such access
       require more than one instruction or if there is no difference in
       cost between byte and (aligned) word loads.
--- 33599,33605 ----
  
   -- Macro: SLOW_BYTE_ACCESS
       Define this macro as a C expression which is nonzero if accessing
!      less than a word of memory (i.e. a 'char' or a 'short') is no
       faster than accessing a word of memory, i.e., if such access
       require more than one instruction or if there is no difference in
       cost between byte and (aligned) word loads.
*************** ordinarily expect.
*** 34031,34050 ****
       structure, but to different bytes.
  
   -- Macro: SLOW_UNALIGNED_ACCESS (MODE, ALIGNMENT)
!      Define this macro to be the value 1 if memory accesses described
!      by the MODE and ALIGNMENT parameters have a cost many times greater
       than aligned accesses, for example if they are emulated in a trap
       handler.
  
       When this macro is nonzero, the compiler will act as if
!      `STRICT_ALIGNMENT' were nonzero when generating code for block
       moves.  This can cause significantly more instructions to be
       produced.  Therefore, do not set this macro nonzero if unaligned
       accesses only add a cycle or two to the time for a memory access.
  
       If the value of this macro is always zero, it need not be defined.
       If this macro is defined, it should produce a nonzero value when
!      `STRICT_ALIGNMENT' is nonzero.
  
   -- Macro: MOVE_RATIO (SPEED)
       The threshold of number of scalar memory-to-memory move insns,
--- 33613,33632 ----
       structure, but to different bytes.
  
   -- Macro: SLOW_UNALIGNED_ACCESS (MODE, ALIGNMENT)
!      Define this macro to be the value 1 if memory accesses described by
!      the MODE and ALIGNMENT parameters have a cost many times greater
       than aligned accesses, for example if they are emulated in a trap
       handler.
  
       When this macro is nonzero, the compiler will act as if
!      'STRICT_ALIGNMENT' were nonzero when generating code for block
       moves.  This can cause significantly more instructions to be
       produced.  Therefore, do not set this macro nonzero if unaligned
       accesses only add a cycle or two to the time for a memory access.
  
       If the value of this macro is always zero, it need not be defined.
       If this macro is defined, it should produce a nonzero value when
!      'STRICT_ALIGNMENT' is nonzero.
  
   -- Macro: MOVE_RATIO (SPEED)
       The threshold of number of scalar memory-to-memory move insns,
*************** ordinarily expect.
*** 34054,34060 ****
       increased code size.
  
       Note that on machines where the corresponding move insn is a
!      `define_expand' that emits a sequence of insns, this macro counts
       the number of such sequences.
  
       The parameter SPEED is true if the code is currently being
--- 33636,33642 ----
       increased code size.
  
       Note that on machines where the corresponding move insn is a
!      'define_expand' that emits a sequence of insns, this macro counts
       the number of such sequences.
  
       The parameter SPEED is true if the code is currently being
*************** ordinarily expect.
*** 34067,34085 ****
            by_pieces_operation OP, bool SPEED_P)
       GCC will attempt several strategies when asked to copy between two
       areas of memory, or to set, clear or store to memory, for example
!      when copying a `struct'. The `by_pieces' infrastructure implements
       such memory operations as a sequence of load, store or move insns.
!      Alternate strategies are to expand the `movmem' or `setmem'
!      optabs, to emit a library call, or to emit unit-by-unit,
!      loop-based operations.
  
!      This target hook should return true if, for a memory operation
!      with a given SIZE and ALIGNMENT, using the `by_pieces'
!      infrastructure is expected to result in better code generation.
!      Both SIZE and ALIGNMENT are measured in terms of storage units.
  
!      The parameter OP is one of: `CLEAR_BY_PIECES', `MOVE_BY_PIECES',
!      `SET_BY_PIECES', `STORE_BY_PIECES'.  These describe the type of
       memory operation under consideration.
  
       The parameter SPEED_P is true if the code is currently being
--- 33649,33667 ----
            by_pieces_operation OP, bool SPEED_P)
       GCC will attempt several strategies when asked to copy between two
       areas of memory, or to set, clear or store to memory, for example
!      when copying a 'struct'.  The 'by_pieces' infrastructure implements
       such memory operations as a sequence of load, store or move insns.
!      Alternate strategies are to expand the 'movmem' or 'setmem' optabs,
!      to emit a library call, or to emit unit-by-unit, loop-based
!      operations.
  
!      This target hook should return true if, for a memory operation with
!      a given SIZE and ALIGNMENT, using the 'by_pieces' infrastructure is
!      expected to result in better code generation.  Both SIZE and
!      ALIGNMENT are measured in terms of storage units.
  
!      The parameter OP is one of: 'CLEAR_BY_PIECES', 'MOVE_BY_PIECES',
!      'SET_BY_PIECES', 'STORE_BY_PIECES'.  These describe the type of
       memory operation under consideration.
  
       The parameter SPEED_P is true if the code is currently being
*************** ordinarily expect.
*** 34087,34106 ****
  
       Returning true for higher values of SIZE can improve code
       generation for speed if the target does not provide an
!      implementation of the `movmem' or `setmem' standard names, if the
!      `movmem' or `setmem' implementation would be more expensive than a
       sequence of insns, or if the overhead of a library call would
       dominate that of the body of the memory operation.
  
!      Returning true for higher values of `size' may also cause an
       increase in code size, for example where the number of insns
       emitted to perform a move would be greater than that of a library
       call.
  
   -- Macro: MOVE_MAX_PIECES
!      A C expression used by `move_by_pieces' to determine the largest
       unit a load or store used to copy memory is.  Defaults to
!      `MOVE_MAX'.
  
   -- Macro: CLEAR_RATIO (SPEED)
       The threshold of number of scalar move insns, _below_ which a
--- 33669,33688 ----
  
       Returning true for higher values of SIZE can improve code
       generation for speed if the target does not provide an
!      implementation of the 'movmem' or 'setmem' standard names, if the
!      'movmem' or 'setmem' implementation would be more expensive than a
       sequence of insns, or if the overhead of a library call would
       dominate that of the body of the memory operation.
  
!      Returning true for higher values of 'size' may also cause an
       increase in code size, for example where the number of insns
       emitted to perform a move would be greater than that of a library
       call.
  
   -- Macro: MOVE_MAX_PIECES
!      A C expression used by 'move_by_pieces' to determine the largest
       unit a load or store used to copy memory is.  Defaults to
!      'MOVE_MAX'.
  
   -- Macro: CLEAR_RATIO (SPEED)
       The threshold of number of scalar move insns, _below_ which a
*************** ordinarily expect.
*** 34124,34170 ****
       The parameter SPEED is true if the code is currently being
       optimized for speed rather than size.
  
!      If you don't define this, it defaults to the value of `MOVE_RATIO'.
  
   -- Macro: USE_LOAD_POST_INCREMENT (MODE)
       A C expression used to determine whether a load postincrement is a
       good thing to use for a given mode.  Defaults to the value of
!      `HAVE_POST_INCREMENT'.
  
   -- Macro: USE_LOAD_POST_DECREMENT (MODE)
       A C expression used to determine whether a load postdecrement is a
       good thing to use for a given mode.  Defaults to the value of
!      `HAVE_POST_DECREMENT'.
  
   -- Macro: USE_LOAD_PRE_INCREMENT (MODE)
       A C expression used to determine whether a load preincrement is a
       good thing to use for a given mode.  Defaults to the value of
!      `HAVE_PRE_INCREMENT'.
  
   -- Macro: USE_LOAD_PRE_DECREMENT (MODE)
       A C expression used to determine whether a load predecrement is a
       good thing to use for a given mode.  Defaults to the value of
!      `HAVE_PRE_DECREMENT'.
  
   -- Macro: USE_STORE_POST_INCREMENT (MODE)
!      A C expression used to determine whether a store postincrement is
!      a good thing to use for a given mode.  Defaults to the value of
!      `HAVE_POST_INCREMENT'.
  
   -- Macro: USE_STORE_POST_DECREMENT (MODE)
!      A C expression used to determine whether a store postdecrement is
!      a good thing to use for a given mode.  Defaults to the value of
!      `HAVE_POST_DECREMENT'.
  
   -- Macro: USE_STORE_PRE_INCREMENT (MODE)
       This macro is used to determine whether a store preincrement is a
       good thing to use for a given mode.  Defaults to the value of
!      `HAVE_PRE_INCREMENT'.
  
   -- Macro: USE_STORE_PRE_DECREMENT (MODE)
       This macro is used to determine whether a store predecrement is a
       good thing to use for a given mode.  Defaults to the value of
!      `HAVE_PRE_DECREMENT'.
  
   -- Macro: NO_FUNCTION_CSE
       Define this macro to be true if it is as good or better to call a
--- 33706,33752 ----
       The parameter SPEED is true if the code is currently being
       optimized for speed rather than size.
  
!      If you don't define this, it defaults to the value of 'MOVE_RATIO'.
  
   -- Macro: USE_LOAD_POST_INCREMENT (MODE)
       A C expression used to determine whether a load postincrement is a
       good thing to use for a given mode.  Defaults to the value of
!      'HAVE_POST_INCREMENT'.
  
   -- Macro: USE_LOAD_POST_DECREMENT (MODE)
       A C expression used to determine whether a load postdecrement is a
       good thing to use for a given mode.  Defaults to the value of
!      'HAVE_POST_DECREMENT'.
  
   -- Macro: USE_LOAD_PRE_INCREMENT (MODE)
       A C expression used to determine whether a load preincrement is a
       good thing to use for a given mode.  Defaults to the value of
!      'HAVE_PRE_INCREMENT'.
  
   -- Macro: USE_LOAD_PRE_DECREMENT (MODE)
       A C expression used to determine whether a load predecrement is a
       good thing to use for a given mode.  Defaults to the value of
!      'HAVE_PRE_DECREMENT'.
  
   -- Macro: USE_STORE_POST_INCREMENT (MODE)
!      A C expression used to determine whether a store postincrement is a
!      good thing to use for a given mode.  Defaults to the value of
!      'HAVE_POST_INCREMENT'.
  
   -- Macro: USE_STORE_POST_DECREMENT (MODE)
!      A C expression used to determine whether a store postdecrement is a
!      good thing to use for a given mode.  Defaults to the value of
!      'HAVE_POST_DECREMENT'.
  
   -- Macro: USE_STORE_PRE_INCREMENT (MODE)
       This macro is used to determine whether a store preincrement is a
       good thing to use for a given mode.  Defaults to the value of
!      'HAVE_PRE_INCREMENT'.
  
   -- Macro: USE_STORE_PRE_DECREMENT (MODE)
       This macro is used to determine whether a store predecrement is a
       good thing to use for a given mode.  Defaults to the value of
!      'HAVE_PRE_DECREMENT'.
  
   -- Macro: NO_FUNCTION_CSE
       Define this macro to be true if it is as good or better to call a
*************** ordinarily expect.
*** 34173,34192 ****
  
   -- Macro: LOGICAL_OP_NON_SHORT_CIRCUIT
       Define this macro if a non-short-circuit operation produced by
!      `fold_range_test ()' is optimal.  This macro defaults to true if
!      `BRANCH_COST' is greater than or equal to the value 2.
  
   -- Target Hook: bool TARGET_OPTAB_SUPPORTED_P (int OP, machine_mode
            MODE1, machine_mode MODE2, optimization_type OPT_TYPE)
       Return true if the optimizers should use optab OP with modes MODE1
       and MODE2 for optimization type OPT_TYPE.  The optab is known to
!      have an associated `.md' instruction whose C condition is true.
       MODE2 is only meaningful for conversion optabs; for direct optabs
       it is a copy of MODE1.
  
!      For example, when called with OP equal to `rint_optab' and MODE1
!      equal to `DFmode', the hook should say whether the optimizers
!      should use optab `rintdf2'.
  
       The default hook returns true for all inputs.
  
--- 33755,33774 ----
  
   -- Macro: LOGICAL_OP_NON_SHORT_CIRCUIT
       Define this macro if a non-short-circuit operation produced by
!      'fold_range_test ()' is optimal.  This macro defaults to true if
!      'BRANCH_COST' is greater than or equal to the value 2.
  
   -- Target Hook: bool TARGET_OPTAB_SUPPORTED_P (int OP, machine_mode
            MODE1, machine_mode MODE2, optimization_type OPT_TYPE)
       Return true if the optimizers should use optab OP with modes MODE1
       and MODE2 for optimization type OPT_TYPE.  The optab is known to
!      have an associated '.md' instruction whose C condition is true.
       MODE2 is only meaningful for conversion optabs; for direct optabs
       it is a copy of MODE1.
  
!      For example, when called with OP equal to 'rint_optab' and MODE1
!      equal to 'DFmode', the hook should say whether the optimizers
!      should use optab 'rintdf2'.
  
       The default hook returns true for all inputs.
  
*************** ordinarily expect.
*** 34197,34236 ****
       The cost may depend on the precise form of the expression, which is
       available for examination in X, and the fact that X appears as
       operand OPNO of an expression with rtx code OUTER_CODE.  That is,
!      the hook can assume that there is some rtx Y such that `GET_CODE
!      (Y) == OUTER_CODE' and such that either (a) `XEXP (Y, OPNO) == X'
!      or (b) `XVEC (Y, OPNO)' contains X.
  
!      MODE is X's machine mode, or for cases like `const_int' that do
!      not have a mode, the mode in which X is used.
  
!      In implementing this hook, you can use the construct
!      `COSTS_N_INSNS (N)' to specify a cost equal to N fast instructions.
  
!      On entry to the hook, `*TOTAL' contains a default estimate for the
       cost of the expression.  The hook should modify this value as
!      necessary.  Traditionally, the default costs are `COSTS_N_INSNS
!      (5)' for multiplications, `COSTS_N_INSNS (7)' for division and
!      modulus operations, and `COSTS_N_INSNS (1)' for all other
       operations.
  
!      When optimizing for code size, i.e. when `speed' is false, this
!      target hook should be used to estimate the relative size cost of
!      an expression, again relative to `COSTS_N_INSNS'.
  
       The hook returns true when all subexpressions of X have been
!      processed, and false when `rtx_cost' should recurse.
  
   -- Target Hook: int TARGET_ADDRESS_COST (rtx ADDRESS, machine_mode
            MODE, addr_space_t AS, bool SPEED)
       This hook computes the cost of an addressing mode that contains
       ADDRESS.  If not defined, the cost is computed from the ADDRESS
!      expression and the `TARGET_RTX_COST' hook.
  
!      For most CISC machines, the default cost is a good approximation
!      of the true cost of the addressing mode.  However, on RISC
!      machines, all instructions normally have the same length and
!      execution time.  Hence all addresses will have equal costs.
  
       In cases where more than one form of an address is known, the form
       with the lowest cost will be used.  If multiple forms have the
--- 33779,33818 ----
       The cost may depend on the precise form of the expression, which is
       available for examination in X, and the fact that X appears as
       operand OPNO of an expression with rtx code OUTER_CODE.  That is,
!      the hook can assume that there is some rtx Y such that 'GET_CODE
!      (Y) == OUTER_CODE' and such that either (a) 'XEXP (Y, OPNO) == X'
!      or (b) 'XVEC (Y, OPNO)' contains X.
  
!      MODE is X's machine mode, or for cases like 'const_int' that do not
!      have a mode, the mode in which X is used.
  
!      In implementing this hook, you can use the construct 'COSTS_N_INSNS
!      (N)' to specify a cost equal to N fast instructions.
  
!      On entry to the hook, '*TOTAL' contains a default estimate for the
       cost of the expression.  The hook should modify this value as
!      necessary.  Traditionally, the default costs are 'COSTS_N_INSNS
!      (5)' for multiplications, 'COSTS_N_INSNS (7)' for division and
!      modulus operations, and 'COSTS_N_INSNS (1)' for all other
       operations.
  
!      When optimizing for code size, i.e. when 'speed' is false, this
!      target hook should be used to estimate the relative size cost of an
!      expression, again relative to 'COSTS_N_INSNS'.
  
       The hook returns true when all subexpressions of X have been
!      processed, and false when 'rtx_cost' should recurse.
  
   -- Target Hook: int TARGET_ADDRESS_COST (rtx ADDRESS, machine_mode
            MODE, addr_space_t AS, bool SPEED)
       This hook computes the cost of an addressing mode that contains
       ADDRESS.  If not defined, the cost is computed from the ADDRESS
!      expression and the 'TARGET_RTX_COST' hook.
  
!      For most CISC machines, the default cost is a good approximation of
!      the true cost of the addressing mode.  However, on RISC machines,
!      all instructions normally have the same length and execution time.
!      Hence all addresses will have equal costs.
  
       In cases where more than one form of an address is known, the form
       with the lowest cost will be used.  If multiple forms have the
*************** ordinarily expect.
*** 34242,34262 ****
       register and memory references will be indirect through that
       register.  On machines where the cost of the addressing mode
       containing the sum is no higher than that of a simple indirect
!      reference, this will produce an additional instruction and
!      possibly require an additional register.  Proper specification of
!      this macro eliminates this overhead for such machines.
  
       This hook is never called with an invalid address.
  
       On machines where an address involving more than one register is as
       cheap as an address computation involving only one register,
!      defining `TARGET_ADDRESS_COST' to reflect this can cause two
       registers to be live over a region of code where only one would
!      have been if `TARGET_ADDRESS_COST' were not defined in that
!      manner.  This effect should be considered in the definition of
!      this macro.  Equivalent costs should probably only be given to
!      addresses with different numbers of registers on machines with
!      lots of registers.
  
   -- Target Hook: bool TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P (void)
       This predicate controls the use of the eager delay slot filler to
--- 33824,33843 ----
       register and memory references will be indirect through that
       register.  On machines where the cost of the addressing mode
       containing the sum is no higher than that of a simple indirect
!      reference, this will produce an additional instruction and possibly
!      require an additional register.  Proper specification of this macro
!      eliminates this overhead for such machines.
  
       This hook is never called with an invalid address.
  
       On machines where an address involving more than one register is as
       cheap as an address computation involving only one register,
!      defining 'TARGET_ADDRESS_COST' to reflect this can cause two
       registers to be live over a region of code where only one would
!      have been if 'TARGET_ADDRESS_COST' were not defined in that manner.
!      This effect should be considered in the definition of this macro.
!      Equivalent costs should probably only be given to addresses with
!      different numbers of registers on machines with lots of registers.
  
   -- Target Hook: bool TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P (void)
       This predicate controls the use of the eager delay slot filler to
*************** ordinarily expect.
*** 34264,34272 ****
       slots.  Targets such as certain MIPS architectures possess both
       branches with and without delay slots.  As the eager delay slot
       filler can decrease performance, disabling it is beneficial when
!      ordinary branches are available.  Use of delay slot branches
!      filled using the basic filler is often still desirable as the
!      delay slot can hide a pipeline bubble.
  
  
  File: gccint.info,  Node: Scheduling,  Next: Sections,  Prev: Costs,  Up: Target Macros
--- 33845,33853 ----
       slots.  Targets such as certain MIPS architectures possess both
       branches with and without delay slots.  As the eager delay slot
       filler can decrease performance, disabling it is beneficial when
!      ordinary branches are available.  Use of delay slot branches filled
!      using the basic filler is often still desirable as the delay slot
!      can hide a pipeline bubble.
  
  
  File: gccint.info,  Node: Scheduling,  Next: Sections,  Prev: Costs,  Up: Target Macros
*************** them: try the first ones in this list fi
*** 34285,34310 ****
       Although the insn scheduler can define itself the possibility of
       issue an insn on the same cycle, the value can serve as an
       additional constraint to issue insns on the same simulated
!      processor cycle (see hooks `TARGET_SCHED_REORDER' and
!      `TARGET_SCHED_REORDER2').  This value must be constant over the
       entire compilation.  If you need it to vary depending on what the
!      instructions are, you must use `TARGET_SCHED_VARIABLE_ISSUE'.
  
   -- Target Hook: int TARGET_SCHED_VARIABLE_ISSUE (FILE *FILE, int
            VERBOSE, rtx_insn *INSN, int MORE)
       This hook is executed by the scheduler after it has scheduled an
       insn from the ready list.  It should return the number of insns
       which can still be issued in the current cycle.  The default is
!      `MORE - 1' for insns other than `CLOBBER' and `USE', which
!      normally are not counted against the issue rate.  You should
!      define this hook if some insns take more machine resources than
!      others, so that fewer insns can follow them in the same cycle.
!      FILE is either a null pointer, or a stdio stream to write any
!      debug output to.  VERBOSE is the verbose level provided by
!      `-fsched-verbose-N'.  INSN is the instruction that was scheduled.
  
!  -- Target Hook: int TARGET_SCHED_ADJUST_COST (rtx_insn *INSN, rtx
!           LINK, rtx_insn *DEP_INSN, int COST)
       This function corrects the value of COST based on the relationship
       between INSN and DEP_INSN through the dependence LINK.  It should
       return the new value.  The default is to make no adjustment to
--- 33866,33891 ----
       Although the insn scheduler can define itself the possibility of
       issue an insn on the same cycle, the value can serve as an
       additional constraint to issue insns on the same simulated
!      processor cycle (see hooks 'TARGET_SCHED_REORDER' and
!      'TARGET_SCHED_REORDER2').  This value must be constant over the
       entire compilation.  If you need it to vary depending on what the
!      instructions are, you must use 'TARGET_SCHED_VARIABLE_ISSUE'.
  
   -- Target Hook: int TARGET_SCHED_VARIABLE_ISSUE (FILE *FILE, int
            VERBOSE, rtx_insn *INSN, int MORE)
       This hook is executed by the scheduler after it has scheduled an
       insn from the ready list.  It should return the number of insns
       which can still be issued in the current cycle.  The default is
!      'MORE - 1' for insns other than 'CLOBBER' and 'USE', which normally
!      are not counted against the issue rate.  You should define this
!      hook if some insns take more machine resources than others, so that
!      fewer insns can follow them in the same cycle.  FILE is either a
!      null pointer, or a stdio stream to write any debug output to.
!      VERBOSE is the verbose level provided by '-fsched-verbose-N'.  INSN
!      is the instruction that was scheduled.
  
!  -- Target Hook: int TARGET_SCHED_ADJUST_COST (rtx_insn *INSN, rtx LINK,
!           rtx_insn *DEP_INSN, int COST)
       This function corrects the value of COST based on the relationship
       between INSN and DEP_INSN through the dependence LINK.  It should
       return the new value.  The default is to make no adjustment to
*************** them: try the first ones in this list fi
*** 34320,34358 ****
  
   -- Target Hook: int TARGET_SCHED_ADJUST_PRIORITY (rtx_insn *INSN, int
            PRIORITY)
!      This hook adjusts the integer scheduling priority PRIORITY of
!      INSN.  It should return the new priority.  Increase the priority to
       execute INSN earlier, reduce the priority to execute INSN later.
!      Do not define this hook if you do not need to adjust the
!      scheduling priorities of insns.
  
   -- Target Hook: int TARGET_SCHED_REORDER (FILE *FILE, int VERBOSE,
            rtx_insn **READY, int *N_READYP, int CLOCK)
       This hook is executed by the scheduler after it has scheduled the
       ready list, to allow the machine description to reorder it (for
!      example to combine two small instructions together on `VLIW'
       machines).  FILE is either a null pointer, or a stdio stream to
       write any debug output to.  VERBOSE is the verbose level provided
!      by `-fsched-verbose-N'.  READY is a pointer to the ready list of
!      instructions that are ready to be scheduled.  N_READYP is a
!      pointer to the number of elements in the ready list.  The scheduler
!      reads the ready list in reverse order, starting with
!      READY[*N_READYP - 1] and going to READY[0].  CLOCK is the timer
!      tick of the scheduler.  You may modify the ready list and the
!      number of ready insns.  The return value is the number of insns
!      that can issue this cycle; normally this is just `issue_rate'.
!      See also `TARGET_SCHED_REORDER2'.
  
   -- Target Hook: int TARGET_SCHED_REORDER2 (FILE *FILE, int VERBOSE,
            rtx_insn **READY, int *N_READYP, int CLOCK)
!      Like `TARGET_SCHED_REORDER', but called at a different time.  That
!      function is called whenever the scheduler starts a new cycle.
!      This one is called once per iteration over a cycle, immediately
!      after `TARGET_SCHED_VARIABLE_ISSUE'; it can reorder the ready list
!      and return the number of insns to be scheduled in the same cycle.
       Defining this hook can be useful if there are frequent situations
!      where scheduling one insn causes other insns to become ready in
!      the same cycle.  These other insns can then be taken into account
       properly.
  
   -- Target Hook: bool TARGET_SCHED_MACRO_FUSION_P (void)
--- 33901,33939 ----
  
   -- Target Hook: int TARGET_SCHED_ADJUST_PRIORITY (rtx_insn *INSN, int
            PRIORITY)
!      This hook adjusts the integer scheduling priority PRIORITY of INSN.
!      It should return the new priority.  Increase the priority to
       execute INSN earlier, reduce the priority to execute INSN later.
!      Do not define this hook if you do not need to adjust the scheduling
!      priorities of insns.
  
   -- Target Hook: int TARGET_SCHED_REORDER (FILE *FILE, int VERBOSE,
            rtx_insn **READY, int *N_READYP, int CLOCK)
       This hook is executed by the scheduler after it has scheduled the
       ready list, to allow the machine description to reorder it (for
!      example to combine two small instructions together on 'VLIW'
       machines).  FILE is either a null pointer, or a stdio stream to
       write any debug output to.  VERBOSE is the verbose level provided
!      by '-fsched-verbose-N'.  READY is a pointer to the ready list of
!      instructions that are ready to be scheduled.  N_READYP is a pointer
!      to the number of elements in the ready list.  The scheduler reads
!      the ready list in reverse order, starting with READY[*N_READYP - 1]
!      and going to READY[0].  CLOCK is the timer tick of the scheduler.
!      You may modify the ready list and the number of ready insns.  The
!      return value is the number of insns that can issue this cycle;
!      normally this is just 'issue_rate'.  See also
!      'TARGET_SCHED_REORDER2'.
  
   -- Target Hook: int TARGET_SCHED_REORDER2 (FILE *FILE, int VERBOSE,
            rtx_insn **READY, int *N_READYP, int CLOCK)
!      Like 'TARGET_SCHED_REORDER', but called at a different time.  That
!      function is called whenever the scheduler starts a new cycle.  This
!      one is called once per iteration over a cycle, immediately after
!      'TARGET_SCHED_VARIABLE_ISSUE'; it can reorder the ready list and
!      return the number of insns to be scheduled in the same cycle.
       Defining this hook can be useful if there are frequent situations
!      where scheduling one insn causes other insns to become ready in the
!      same cycle.  These other insns can then be taken into account
       properly.
  
   -- Target Hook: bool TARGET_SCHED_MACRO_FUSION_P (void)
*************** them: try the first ones in this list fi
*** 34362,34373 ****
   -- Target Hook: bool TARGET_SCHED_MACRO_FUSION_PAIR_P (rtx_insn *PREV,
            rtx_insn *CURR)
       This hook is used to check whether two insns should be macro fused
!      for a target microarchitecture. If this hook returns true for the
!      given insn pair (PREV and CURR), the scheduler will put them into
!      a sched group, and they will not be scheduled apart.  The two
!      insns will be either two SET insns or a compare and a conditional
!      jump and this hook should validate any dependencies needed to fuse
!      the two insns together.
  
   -- Target Hook: void TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK
            (rtx_insn *HEAD, rtx_insn *TAIL)
--- 33943,33954 ----
   -- Target Hook: bool TARGET_SCHED_MACRO_FUSION_PAIR_P (rtx_insn *PREV,
            rtx_insn *CURR)
       This hook is used to check whether two insns should be macro fused
!      for a target microarchitecture.  If this hook returns true for the
!      given insn pair (PREV and CURR), the scheduler will put them into a
!      sched group, and they will not be scheduled apart.  The two insns
!      will be either two SET insns or a compare and a conditional jump
!      and this hook should validate any dependencies needed to fuse the
!      two insns together.
  
   -- Target Hook: void TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK
            (rtx_insn *HEAD, rtx_insn *TAIL)
*************** them: try the first ones in this list fi
*** 34384,34417 ****
       This hook is executed by the scheduler at the beginning of each
       block of instructions that are to be scheduled.  FILE is either a
       null pointer, or a stdio stream to write any debug output to.
!      VERBOSE is the verbose level provided by `-fsched-verbose-N'.
       MAX_READY is the maximum number of insns in the current scheduling
       region that can be live at the same time.  This can be used to
       allocate scratch space if it is needed, e.g. by
!      `TARGET_SCHED_REORDER'.
  
   -- Target Hook: void TARGET_SCHED_FINISH (FILE *FILE, int VERBOSE)
       This hook is executed by the scheduler at the end of each block of
       instructions that are to be scheduled.  It can be used to perform
!      cleanup of any actions done by the other scheduling hooks.  FILE
!      is either a null pointer, or a stdio stream to write any debug
!      output to.  VERBOSE is the verbose level provided by
!      `-fsched-verbose-N'.
  
!  -- Target Hook: void TARGET_SCHED_INIT_GLOBAL (FILE *FILE, int
!           VERBOSE, int OLD_MAX_UID)
       This hook is executed by the scheduler after function level
       initializations.  FILE is either a null pointer, or a stdio stream
       to write any debug output to.  VERBOSE is the verbose level
!      provided by `-fsched-verbose-N'.  OLD_MAX_UID is the maximum insn
       uid when scheduling begins.
  
   -- Target Hook: void TARGET_SCHED_FINISH_GLOBAL (FILE *FILE, int
            VERBOSE)
       This is the cleanup hook corresponding to
!      `TARGET_SCHED_INIT_GLOBAL'.  FILE is either a null pointer, or a
       stdio stream to write any debug output to.  VERBOSE is the verbose
!      level provided by `-fsched-verbose-N'.
  
   -- Target Hook: rtx TARGET_SCHED_DFA_PRE_CYCLE_INSN (void)
       The hook returns an RTL insn.  The automaton state used in the
--- 33965,33997 ----
       This hook is executed by the scheduler at the beginning of each
       block of instructions that are to be scheduled.  FILE is either a
       null pointer, or a stdio stream to write any debug output to.
!      VERBOSE is the verbose level provided by '-fsched-verbose-N'.
       MAX_READY is the maximum number of insns in the current scheduling
       region that can be live at the same time.  This can be used to
       allocate scratch space if it is needed, e.g. by
!      'TARGET_SCHED_REORDER'.
  
   -- Target Hook: void TARGET_SCHED_FINISH (FILE *FILE, int VERBOSE)
       This hook is executed by the scheduler at the end of each block of
       instructions that are to be scheduled.  It can be used to perform
!      cleanup of any actions done by the other scheduling hooks.  FILE is
!      either a null pointer, or a stdio stream to write any debug output
!      to.  VERBOSE is the verbose level provided by '-fsched-verbose-N'.
  
!  -- Target Hook: void TARGET_SCHED_INIT_GLOBAL (FILE *FILE, int VERBOSE,
!           int OLD_MAX_UID)
       This hook is executed by the scheduler after function level
       initializations.  FILE is either a null pointer, or a stdio stream
       to write any debug output to.  VERBOSE is the verbose level
!      provided by '-fsched-verbose-N'.  OLD_MAX_UID is the maximum insn
       uid when scheduling begins.
  
   -- Target Hook: void TARGET_SCHED_FINISH_GLOBAL (FILE *FILE, int
            VERBOSE)
       This is the cleanup hook corresponding to
!      'TARGET_SCHED_INIT_GLOBAL'.  FILE is either a null pointer, or a
       stdio stream to write any debug output to.  VERBOSE is the verbose
!      level provided by '-fsched-verbose-N'.
  
   -- Target Hook: rtx TARGET_SCHED_DFA_PRE_CYCLE_INSN (void)
       The hook returns an RTL insn.  The automaton state used in the
*************** them: try the first ones in this list fi
*** 34419,34450 ****
       when the new simulated processor cycle starts.  Usage of the hook
       may simplify the automaton pipeline description for some VLIW
       processors.  If the hook is defined, it is used only for the
!      automaton based pipeline description.  The default is not to
!      change the state when the new simulated processor cycle starts.
  
   -- Target Hook: void TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN (void)
       The hook can be used to initialize data used by the previous hook.
  
   -- Target Hook: rtx_insn * TARGET_SCHED_DFA_POST_CYCLE_INSN (void)
!      The hook is analogous to `TARGET_SCHED_DFA_PRE_CYCLE_INSN' but used
       to changed the state as if the insn were scheduled when the new
       simulated processor cycle finishes.
  
   -- Target Hook: void TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN (void)
!      The hook is analogous to `TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN' but
       used to initialize data used by the previous hook.
  
   -- Target Hook: void TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE (void)
!      The hook to notify target that the current simulated cycle is
!      about to finish.  The hook is analogous to
!      `TARGET_SCHED_DFA_PRE_CYCLE_INSN' but used to change the state in
       more complicated situations - e.g., when advancing state on a
       single insn is not enough.
  
   -- Target Hook: void TARGET_SCHED_DFA_POST_ADVANCE_CYCLE (void)
       The hook to notify target that new simulated cycle has just
       started.  The hook is analogous to
!      `TARGET_SCHED_DFA_POST_CYCLE_INSN' but used to change the state in
       more complicated situations - e.g., when advancing state on a
       single insn is not enough.
  
--- 33999,34030 ----
       when the new simulated processor cycle starts.  Usage of the hook
       may simplify the automaton pipeline description for some VLIW
       processors.  If the hook is defined, it is used only for the
!      automaton based pipeline description.  The default is not to change
!      the state when the new simulated processor cycle starts.
  
   -- Target Hook: void TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN (void)
       The hook can be used to initialize data used by the previous hook.
  
   -- Target Hook: rtx_insn * TARGET_SCHED_DFA_POST_CYCLE_INSN (void)
!      The hook is analogous to 'TARGET_SCHED_DFA_PRE_CYCLE_INSN' but used
       to changed the state as if the insn were scheduled when the new
       simulated processor cycle finishes.
  
   -- Target Hook: void TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN (void)
!      The hook is analogous to 'TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN' but
       used to initialize data used by the previous hook.
  
   -- Target Hook: void TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE (void)
!      The hook to notify target that the current simulated cycle is about
!      to finish.  The hook is analogous to
!      'TARGET_SCHED_DFA_PRE_CYCLE_INSN' but used to change the state in
       more complicated situations - e.g., when advancing state on a
       single insn is not enough.
  
   -- Target Hook: void TARGET_SCHED_DFA_POST_ADVANCE_CYCLE (void)
       The hook to notify target that new simulated cycle has just
       started.  The hook is analogous to
!      'TARGET_SCHED_DFA_POST_CYCLE_INSN' but used to change the state in
       more complicated situations - e.g., when advancing state on a
       single insn is not enough.
  
*************** them: try the first ones in this list fi
*** 34453,34465 ****
       This hook controls better choosing an insn from the ready insn
       queue for the DFA-based insn scheduler.  Usually the scheduler
       chooses the first insn from the queue.  If the hook returns a
!      positive value, an additional scheduler code tries all
!      permutations of `TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD
!      ()' subsequent ready insns to choose an insn whose issue will
!      result in maximal number of issued insns on the same cycle.  For
!      the VLIW processor, the code could actually solve the problem of
!      packing simple insns into the VLIW insn.  Of course, if the rules
!      of VLIW packing are described in the automaton.
  
       This code also could be used for superscalar RISC processors.  Let
       us consider a superscalar RISC processor with 3 pipelines.  Some
--- 34033,34045 ----
       This hook controls better choosing an insn from the ready insn
       queue for the DFA-based insn scheduler.  Usually the scheduler
       chooses the first insn from the queue.  If the hook returns a
!      positive value, an additional scheduler code tries all permutations
!      of 'TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD ()' subsequent
!      ready insns to choose an insn whose issue will result in maximal
!      number of issued insns on the same cycle.  For the VLIW processor,
!      the code could actually solve the problem of packing simple insns
!      into the VLIW insn.  Of course, if the rules of VLIW packing are
!      described in the automaton.
  
       This code also could be used for superscalar RISC processors.  Let
       us consider a superscalar RISC processor with 3 pipelines.  Some
*************** them: try the first ones in this list fi
*** 34477,34490 ****
       The default is no multipass scheduling.
  
   -- Target Hook: int
! TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD (rtx_insn *INSN,
!           int READY_INDEX)
       This hook controls what insns from the ready insn queue will be
       considered for the multipass insn scheduling.  If the hook returns
       zero for INSN, the insn will be considered in multipass scheduling.
       Positive return values will remove INSN from consideration on the
!      current round of multipass scheduling.  Negative return values
!      will remove INSN from consideration for given number of cycles.
       Backends should be careful about returning non-zero for highest
       priority instruction at position 0 in the ready list.  READY_INDEX
       is passed to allow backends make correct judgements.
--- 34057,34071 ----
       The default is no multipass scheduling.
  
   -- Target Hook: int
!           TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD
!           (rtx_insn *INSN, int READY_INDEX)
! 
       This hook controls what insns from the ready insn queue will be
       considered for the multipass insn scheduling.  If the hook returns
       zero for INSN, the insn will be considered in multipass scheduling.
       Positive return values will remove INSN from consideration on the
!      current round of multipass scheduling.  Negative return values will
!      remove INSN from consideration for given number of cycles.
       Backends should be careful about returning non-zero for highest
       priority instruction at position 0 in the ready list.  READY_INDEX
       is passed to allow backends make correct judgements.
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34500,34515 ****
   -- Target Hook: void TARGET_SCHED_FIRST_CYCLE_MULTIPASS_ISSUE (void
            *DATA, signed char *READY_TRY, int N_READY, rtx_insn *INSN,
            const void *PREV_DATA)
!      This hook is called when multipass scheduling evaluates
!      instruction INSN.
  
   -- Target Hook: void TARGET_SCHED_FIRST_CYCLE_MULTIPASS_BACKTRACK
            (const void *DATA, signed char *READY_TRY, int N_READY)
!      This is called when multipass scheduling backtracks from
!      evaluation of an instruction.
  
!  -- Target Hook: void TARGET_SCHED_FIRST_CYCLE_MULTIPASS_END (const
!           void *DATA)
       This hook notifies the target about the result of the concluded
       current round of multipass scheduling.
  
--- 34081,34096 ----
   -- Target Hook: void TARGET_SCHED_FIRST_CYCLE_MULTIPASS_ISSUE (void
            *DATA, signed char *READY_TRY, int N_READY, rtx_insn *INSN,
            const void *PREV_DATA)
!      This hook is called when multipass scheduling evaluates instruction
!      INSN.
  
   -- Target Hook: void TARGET_SCHED_FIRST_CYCLE_MULTIPASS_BACKTRACK
            (const void *DATA, signed char *READY_TRY, int N_READY)
!      This is called when multipass scheduling backtracks from evaluation
!      of an instruction.
  
!  -- Target Hook: void TARGET_SCHED_FIRST_CYCLE_MULTIPASS_END (const void
!           *DATA)
       This hook notifies the target about the result of the concluded
       current round of multipass scheduling.
  
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34537,34563 ****
  
   -- Target Hook: bool TARGET_SCHED_IS_COSTLY_DEPENDENCE (struct _dep
            *_DEP, int COST, int DISTANCE)
!      This hook is used to define which dependences are considered
!      costly by the target, so costly that it is not advisable to
!      schedule the insns that are involved in the dependence too close
!      to one another.  The parameters to this hook are as follows:  The
!      first parameter _DEP is the dependence being evaluated.  The
!      second parameter COST is the cost of the dependence as estimated
!      by the scheduler, and the third parameter DISTANCE is the distance
!      in cycles between the two insns.  The hook returns `true' if
!      considering the distance between the two insns the dependence
!      between them is considered costly by the target, and `false'
!      otherwise.
  
       Defining this hook can be useful in multiple-issue out-of-order
!      machines, where (a) it's practically hopeless to predict the
!      actual data/resource delays, however: (b) there's a better chance
!      to predict the actual grouping that will be formed, and (c)
!      correctly emulating the grouping can be very important.  In such
!      targets one may want to allow issuing dependent insns closer to
!      one another--i.e., closer than the dependence distance;  however,
!      not in cases of "costly dependences", which this hooks allows to
!      define.
  
   -- Target Hook: void TARGET_SCHED_H_I_D_EXTENDED (void)
       This hook is called by the insn scheduler after emitting a new
--- 34118,34142 ----
  
   -- Target Hook: bool TARGET_SCHED_IS_COSTLY_DEPENDENCE (struct _dep
            *_DEP, int COST, int DISTANCE)
!      This hook is used to define which dependences are considered costly
!      by the target, so costly that it is not advisable to schedule the
!      insns that are involved in the dependence too close to one another.
!      The parameters to this hook are as follows: The first parameter
!      _DEP is the dependence being evaluated.  The second parameter COST
!      is the cost of the dependence as estimated by the scheduler, and
!      the third parameter DISTANCE is the distance in cycles between the
!      two insns.  The hook returns 'true' if considering the distance
!      between the two insns the dependence between them is considered
!      costly by the target, and 'false' otherwise.
  
       Defining this hook can be useful in multiple-issue out-of-order
!      machines, where (a) it's practically hopeless to predict the actual
!      data/resource delays, however: (b) there's a better chance to
!      predict the actual grouping that will be formed, and (c) correctly
!      emulating the grouping can be very important.  In such targets one
!      may want to allow issuing dependent insns closer to one
!      another--i.e., closer than the dependence distance; however, not in
!      cases of "costly dependences", which this hooks allows to define.
  
   -- Target Hook: void TARGET_SCHED_H_I_D_EXTENDED (void)
       This hook is called by the insn scheduler after emitting a new
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34572,34587 ****
            CLEAN_P)
       Initialize store pointed to by TC to hold target scheduling
       context.  It CLEAN_P is true then initialize TC as if scheduler is
!      at the beginning of the block.  Otherwise, copy the current
!      context into TC.
  
   -- Target Hook: void TARGET_SCHED_SET_SCHED_CONTEXT (void *TC)
       Copy target scheduling context pointed to by TC to the current
       context.
  
   -- Target Hook: void TARGET_SCHED_CLEAR_SCHED_CONTEXT (void *TC)
!      Deallocate internal data in target scheduling context pointed to
!      by TC.
  
   -- Target Hook: void TARGET_SCHED_FREE_SCHED_CONTEXT (void *TC)
       Deallocate a store for target scheduling context pointed to by TC.
--- 34151,34166 ----
            CLEAN_P)
       Initialize store pointed to by TC to hold target scheduling
       context.  It CLEAN_P is true then initialize TC as if scheduler is
!      at the beginning of the block.  Otherwise, copy the current context
!      into TC.
  
   -- Target Hook: void TARGET_SCHED_SET_SCHED_CONTEXT (void *TC)
       Copy target scheduling context pointed to by TC to the current
       context.
  
   -- Target Hook: void TARGET_SCHED_CLEAR_SCHED_CONTEXT (void *TC)
!      Deallocate internal data in target scheduling context pointed to by
!      TC.
  
   -- Target Hook: void TARGET_SCHED_FREE_SCHED_CONTEXT (void *TC)
       Deallocate a store for target scheduling context pointed to by TC.
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34594,34615 ****
       has a speculative version and, in case of successful check, to
       generate that speculative pattern.  The hook should return 1, if
       the instruction has a speculative form, or -1, if it doesn't.
!      REQUEST describes the type of requested speculation.  If the
!      return value equals 1 then NEW_PAT is assigned the generated
!      speculative pattern.
  
   -- Target Hook: bool TARGET_SCHED_NEEDS_BLOCK_P (unsigned int
            DEP_STATUS)
       This hook is called by the insn scheduler during generation of
!      recovery code for INSN.  It should return `true', if the
       corresponding check instruction should branch to recovery code, or
!      `false' otherwise.
  
   -- Target Hook: rtx TARGET_SCHED_GEN_SPEC_CHECK (rtx_insn *INSN,
            rtx_insn *LABEL, unsigned int DS)
!      This hook is called by the insn scheduler to generate a pattern
!      for recovery check instruction.  If MUTATE_P is zero, then INSN is
!      a speculative instruction for which the check should be generated.
       LABEL is either a label of a basic block, where recovery code
       should be emitted, or a null pointer, when requested check doesn't
       branch to recovery code (a simple check).  If MUTATE_P is nonzero,
--- 34173,34194 ----
       has a speculative version and, in case of successful check, to
       generate that speculative pattern.  The hook should return 1, if
       the instruction has a speculative form, or -1, if it doesn't.
!      REQUEST describes the type of requested speculation.  If the return
!      value equals 1 then NEW_PAT is assigned the generated speculative
!      pattern.
  
   -- Target Hook: bool TARGET_SCHED_NEEDS_BLOCK_P (unsigned int
            DEP_STATUS)
       This hook is called by the insn scheduler during generation of
!      recovery code for INSN.  It should return 'true', if the
       corresponding check instruction should branch to recovery code, or
!      'false' otherwise.
  
   -- Target Hook: rtx TARGET_SCHED_GEN_SPEC_CHECK (rtx_insn *INSN,
            rtx_insn *LABEL, unsigned int DS)
!      This hook is called by the insn scheduler to generate a pattern for
!      recovery check instruction.  If MUTATE_P is zero, then INSN is a
!      speculative instruction for which the check should be generated.
       LABEL is either a label of a basic block, where recovery code
       should be emitted, or a null pointer, when requested check doesn't
       branch to recovery code (a simple check).  If MUTATE_P is nonzero,
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34617,34624 ****
       denoted by INSN should be generated.  In this case LABEL can't be
       null.
  
!  -- Target Hook: void TARGET_SCHED_SET_SCHED_FLAGS (struct
!           spec_info_def *SPEC_INFO)
       This hook is used by the insn scheduler to find out what features
       should be enabled/used.  The structure *SPEC_INFO should be filled
       in by the target.  The structure describes speculation types that
--- 34196,34203 ----
       denoted by INSN should be generated.  In this case LABEL can't be
       null.
  
!  -- Target Hook: void TARGET_SCHED_SET_SCHED_FLAGS (struct spec_info_def
!           *SPEC_INFO)
       This hook is used by the insn scheduler to find out what features
       should be enabled/used.  The structure *SPEC_INFO should be filled
       in by the target.  The structure describes speculation types that
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34628,34637 ****
       This hook is called by the swing modulo scheduler to calculate a
       resource-based lower bound which is based on the resources
       available in the machine and the resources required by each
!      instruction.  The target backend can use G to calculate such
!      bound.  A very simple lower bound will be used in case this hook
!      is not implemented: the total number of instructions divided by
!      the issue rate.
  
   -- Target Hook: bool TARGET_SCHED_DISPATCH (rtx_insn *INSN, int X)
       This hook is called by Haifa Scheduler.  It returns true if
--- 34207,34216 ----
       This hook is called by the swing modulo scheduler to calculate a
       resource-based lower bound which is based on the resources
       available in the machine and the resources required by each
!      instruction.  The target backend can use G to calculate such bound.
!      A very simple lower bound will be used in case this hook is not
!      implemented: the total number of instructions divided by the issue
!      rate.
  
   -- Target Hook: bool TARGET_SCHED_DISPATCH (rtx_insn *INSN, int X)
       This hook is called by Haifa Scheduler.  It returns true if
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34643,34662 ****
       specified in its second parameter.
  
   -- Target Hook: bool TARGET_SCHED_EXPOSED_PIPELINE
!      True if the processor has an exposed pipeline, which means that
!      not just the order of instructions is important for correctness
!      when scheduling, but also the latencies of operations.
  
!  -- Target Hook: int TARGET_SCHED_REASSOCIATION_WIDTH (unsigned int
!           OPC, machine_mode MODE)
       This hook is called by tree reassociator to determine a level of
       parallelism required in output calculations chain.
  
   -- Target Hook: void TARGET_SCHED_FUSION_PRIORITY (rtx_insn *INSN, int
            MAX_PRI, int *FUSION_PRI, int *PRI)
       This hook is called by scheduling fusion pass.  It calculates
!      fusion priorities for each instruction passed in by parameter.
!      The priorities are returned via pointer parameters.
  
       INSN is the instruction whose priorities need to be calculated.
       MAX_PRI is the maximum priority can be returned in any cases.
--- 34222,34241 ----
       specified in its second parameter.
  
   -- Target Hook: bool TARGET_SCHED_EXPOSED_PIPELINE
!      True if the processor has an exposed pipeline, which means that not
!      just the order of instructions is important for correctness when
!      scheduling, but also the latencies of operations.
  
!  -- Target Hook: int TARGET_SCHED_REASSOCIATION_WIDTH (unsigned int OPC,
!           machine_mode MODE)
       This hook is called by tree reassociator to determine a level of
       parallelism required in output calculations chain.
  
   -- Target Hook: void TARGET_SCHED_FUSION_PRIORITY (rtx_insn *INSN, int
            MAX_PRI, int *FUSION_PRI, int *PRI)
       This hook is called by scheduling fusion pass.  It calculates
!      fusion priorities for each instruction passed in by parameter.  The
!      priorities are returned via pointer parameters.
  
       INSN is the instruction whose priorities need to be calculated.
       MAX_PRI is the maximum priority can be returned in any cases.
*************** TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_L
*** 34665,34679 ****
       parameter through which INSN's priority should be calculated and
       returned.
  
!      Same FUSION_PRI should be returned for instructions which should
!      be scheduled together.  Different PRI should be returned for
       instructions with same FUSION_PRI.  FUSION_PRI is the major sort
!      key, PRI is the minor sort key.  All instructions will be
!      scheduled according to the two priorities.  All priorities
!      calculated should be between 0 (exclusive) and MAX_PRI
!      (inclusive).  To avoid false dependencies, FUSION_PRI of
!      instructions which need to be scheduled together should be smaller
!      than FUSION_PRI of irrelevant instructions.
  
       Given below example:
  
--- 34244,34258 ----
       parameter through which INSN's priority should be calculated and
       returned.
  
!      Same FUSION_PRI should be returned for instructions which should be
!      scheduled together.  Different PRI should be returned for
       instructions with same FUSION_PRI.  FUSION_PRI is the major sort
!      key, PRI is the minor sort key.  All instructions will be scheduled
!      according to the two priorities.  All priorities calculated should
!      be between 0 (exclusive) and MAX_PRI (inclusive).  To avoid false
!      dependencies, FUSION_PRI of instructions which need to be scheduled
!      together should be smaller than FUSION_PRI of irrelevant
!      instructions.
  
       Given below example:
  
*************** section", which holds initialized writab
*** 34737,34770 ****
  which holds uninitialized data.  Some systems have other kinds of
  sections.
  
!  `varasm.c' provides several well-known sections, such as
! `text_section', `data_section' and `bss_section'.  The normal way of
! controlling a `FOO_section' variable is to define the associated
! `FOO_SECTION_ASM_OP' macro, as described below.  The macros are only
! read once, when `varasm.c' initializes itself, so their values must be
  run-time constants.  They may however depend on command-line flags.
  
!  _Note:_ Some run-time files, such `crtstuff.c', also make use of the
! `FOO_SECTION_ASM_OP' macros, and expect them to be string literals.
  
   Some assemblers require a different string to be written every time a
  section is selected.  If your assembler falls into this category, you
! should define the `TARGET_ASM_INIT_SECTIONS' hook and use
! `get_unnamed_section' to set up the sections.
  
!  You must always create a `text_section', either by defining
! `TEXT_SECTION_ASM_OP' or by initializing `text_section' in
! `TARGET_ASM_INIT_SECTIONS'.  The same is true of `data_section' and
! `DATA_SECTION_ASM_OP'.  If you do not create a distinct
! `readonly_data_section', the default is to reuse `text_section'.
  
!  All the other `varasm.c' sections are optional, and are null if the
  target does not provide them.
  
   -- Macro: TEXT_SECTION_ASM_OP
       A C expression whose value is a string, including spacing,
!      containing the assembler operation that should precede
!      instructions and read-only data.  Normally `"\t.text"' is right.
  
   -- Macro: HOT_TEXT_SECTION_NAME
       If defined, a C string constant for the name of the section
--- 34316,34349 ----
  which holds uninitialized data.  Some systems have other kinds of
  sections.
  
!  'varasm.c' provides several well-known sections, such as
! 'text_section', 'data_section' and 'bss_section'.  The normal way of
! controlling a 'FOO_section' variable is to define the associated
! 'FOO_SECTION_ASM_OP' macro, as described below.  The macros are only
! read once, when 'varasm.c' initializes itself, so their values must be
  run-time constants.  They may however depend on command-line flags.
  
!  _Note:_ Some run-time files, such 'crtstuff.c', also make use of the
! 'FOO_SECTION_ASM_OP' macros, and expect them to be string literals.
  
   Some assemblers require a different string to be written every time a
  section is selected.  If your assembler falls into this category, you
! should define the 'TARGET_ASM_INIT_SECTIONS' hook and use
! 'get_unnamed_section' to set up the sections.
  
!  You must always create a 'text_section', either by defining
! 'TEXT_SECTION_ASM_OP' or by initializing 'text_section' in
! 'TARGET_ASM_INIT_SECTIONS'.  The same is true of 'data_section' and
! 'DATA_SECTION_ASM_OP'.  If you do not create a distinct
! 'readonly_data_section', the default is to reuse 'text_section'.
  
!  All the other 'varasm.c' sections are optional, and are null if the
  target does not provide them.
  
   -- Macro: TEXT_SECTION_ASM_OP
       A C expression whose value is a string, including spacing,
!      containing the assembler operation that should precede instructions
!      and read-only data.  Normally '"\t.text"' is right.
  
   -- Macro: HOT_TEXT_SECTION_NAME
       If defined, a C string constant for the name of the section
*************** target does not provide them.
*** 34779,34785 ****
   -- Macro: DATA_SECTION_ASM_OP
       A C expression whose value is a string, including spacing,
       containing the assembler operation to identify the following data
!      as writable initialized data.  Normally `"\t.data"' is right.
  
   -- Macro: SDATA_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
--- 34358,34364 ----
   -- Macro: DATA_SECTION_ASM_OP
       A C expression whose value is a string, including spacing,
       containing the assembler operation to identify the following data
!      as writable initialized data.  Normally '"\t.data"' is right.
  
   -- Macro: SDATA_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
*************** target does not provide them.
*** 34795,34803 ****
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
       following data as uninitialized global data.  If not defined, and
!      `ASM_OUTPUT_ALIGNED_BSS' not defined, uninitialized global data
!      will be output in the data section if `-fno-common' is passed,
!      otherwise `ASM_OUTPUT_COMMON' will be used.
  
   -- Macro: SBSS_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
--- 34374,34382 ----
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
       following data as uninitialized global data.  If not defined, and
!      'ASM_OUTPUT_ALIGNED_BSS' not defined, uninitialized global data
!      will be output in the data section if '-fno-common' is passed,
!      otherwise 'ASM_OUTPUT_COMMON' will be used.
  
   -- Macro: SBSS_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
*************** target does not provide them.
*** 34807,34825 ****
   -- Macro: TLS_COMMON_ASM_OP
       If defined, a C expression whose value is a string containing the
       assembler operation to identify the following data as thread-local
!      common data.  The default is `".tls_common"'.
  
   -- Macro: TLS_SECTION_ASM_FLAG
       If defined, a C expression whose value is a character constant
       containing the flag used to mark a section as a TLS section.  The
!      default is `'T''.
  
   -- Macro: INIT_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
       following data as initialization code.  If not defined, GCC will
       assume such a section does not exist.  This section has no
!      corresponding `init_section' variable; it is used entirely in
       runtime code.
  
   -- Macro: FINI_SECTION_ASM_OP
--- 34386,34404 ----
   -- Macro: TLS_COMMON_ASM_OP
       If defined, a C expression whose value is a string containing the
       assembler operation to identify the following data as thread-local
!      common data.  The default is '".tls_common"'.
  
   -- Macro: TLS_SECTION_ASM_FLAG
       If defined, a C expression whose value is a character constant
       containing the flag used to mark a section as a TLS section.  The
!      default is ''T''.
  
   -- Macro: INIT_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
       following data as initialization code.  If not defined, GCC will
       assume such a section does not exist.  This section has no
!      corresponding 'init_section' variable; it is used entirely in
       runtime code.
  
   -- Macro: FINI_SECTION_ASM_OP
*************** target does not provide them.
*** 34827,34882 ****
       spacing, containing the assembler operation to identify the
       following data as finalization code.  If not defined, GCC will
       assume such a section does not exist.  This section has no
!      corresponding `fini_section' variable; it is used entirely in
       runtime code.
  
   -- Macro: INIT_ARRAY_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
!      following data as part of the `.init_array' (or equivalent)
       section.  If not defined, GCC will assume such a section does not
!      exist.  Do not define both this macro and `INIT_SECTION_ASM_OP'.
  
   -- Macro: FINI_ARRAY_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
!      following data as part of the `.fini_array' (or equivalent)
       section.  If not defined, GCC will assume such a section does not
!      exist.  Do not define both this macro and `FINI_SECTION_ASM_OP'.
  
   -- Macro: CRT_CALL_STATIC_FUNCTION (SECTION_OP, FUNCTION)
       If defined, an ASM statement that switches to a different section
       via SECTION_OP, calls FUNCTION, and switches back to the text
!      section.  This is used in `crtstuff.c' if `INIT_SECTION_ASM_OP' or
!      `FINI_SECTION_ASM_OP' to calls to initialization and finalization
       functions from the init and fini sections.  By default, this macro
!      uses a simple function call.  Some ports need hand-crafted
!      assembly code to avoid dependencies on registers initialized in
!      the function prologue or to ensure that constant pools don't end
!      up too far way in the text section.
  
   -- Macro: TARGET_LIBGCC_SDATA_SECTION
       If defined, a string which names the section into which small
       variables defined in crtstuff and libgcc should go.  This is useful
       when the target has options for optimizing access to small data,
!      and you want the crtstuff and libgcc routines to be conservative
!      in what they expect of your application yet liberal in what your
!      application expects.  For example, for targets with a `.sdata'
!      section (like MIPS), you could compile crtstuff with `-G 0' so
!      that it doesn't require small data support from your application,
!      but use this macro to put small data into `.sdata' so that your
       application can access these variables whether it uses small data
       or not.
  
   -- Macro: FORCE_CODE_SECTION_ALIGN
       If defined, an ASM statement that aligns a code section to some
       arbitrary boundary.  This is used to force all fragments of the
!      `.init' and `.fini' sections to have to same alignment and thus
       prevent the linker from having to add any padding.
  
   -- Macro: JUMP_TABLES_IN_TEXT_SECTION
       Define this macro to be an expression with a nonzero value if jump
!      tables (for `tablejump' insns) should be output in the text
       section, along with the assembler instructions.  Otherwise, the
       readonly data section is used.
  
--- 34406,34461 ----
       spacing, containing the assembler operation to identify the
       following data as finalization code.  If not defined, GCC will
       assume such a section does not exist.  This section has no
!      corresponding 'fini_section' variable; it is used entirely in
       runtime code.
  
   -- Macro: INIT_ARRAY_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
!      following data as part of the '.init_array' (or equivalent)
       section.  If not defined, GCC will assume such a section does not
!      exist.  Do not define both this macro and 'INIT_SECTION_ASM_OP'.
  
   -- Macro: FINI_ARRAY_SECTION_ASM_OP
       If defined, a C expression whose value is a string, including
       spacing, containing the assembler operation to identify the
!      following data as part of the '.fini_array' (or equivalent)
       section.  If not defined, GCC will assume such a section does not
!      exist.  Do not define both this macro and 'FINI_SECTION_ASM_OP'.
  
   -- Macro: CRT_CALL_STATIC_FUNCTION (SECTION_OP, FUNCTION)
       If defined, an ASM statement that switches to a different section
       via SECTION_OP, calls FUNCTION, and switches back to the text
!      section.  This is used in 'crtstuff.c' if 'INIT_SECTION_ASM_OP' or
!      'FINI_SECTION_ASM_OP' to calls to initialization and finalization
       functions from the init and fini sections.  By default, this macro
!      uses a simple function call.  Some ports need hand-crafted assembly
!      code to avoid dependencies on registers initialized in the function
!      prologue or to ensure that constant pools don't end up too far way
!      in the text section.
  
   -- Macro: TARGET_LIBGCC_SDATA_SECTION
       If defined, a string which names the section into which small
       variables defined in crtstuff and libgcc should go.  This is useful
       when the target has options for optimizing access to small data,
!      and you want the crtstuff and libgcc routines to be conservative in
!      what they expect of your application yet liberal in what your
!      application expects.  For example, for targets with a '.sdata'
!      section (like MIPS), you could compile crtstuff with '-G 0' so that
!      it doesn't require small data support from your application, but
!      use this macro to put small data into '.sdata' so that your
       application can access these variables whether it uses small data
       or not.
  
   -- Macro: FORCE_CODE_SECTION_ALIGN
       If defined, an ASM statement that aligns a code section to some
       arbitrary boundary.  This is used to force all fragments of the
!      '.init' and '.fini' sections to have to same alignment and thus
       prevent the linker from having to add any padding.
  
   -- Macro: JUMP_TABLES_IN_TEXT_SECTION
       Define this macro to be an expression with a nonzero value if jump
!      tables (for 'tablejump' insns) should be output in the text
       section, along with the assembler instructions.  Otherwise, the
       readonly data section is used.
  
*************** target does not provide them.
*** 34885,34892 ****
  
   -- Target Hook: void TARGET_ASM_INIT_SECTIONS (void)
       Define this hook if you need to do something special to set up the
!      `varasm.c' sections, or if your target has some special sections
!      of its own that you need to create.
  
       GCC calls this hook after processing the command line, but before
       writing any assembly code, and before calling any of the
--- 34464,34471 ----
  
   -- Target Hook: void TARGET_ASM_INIT_SECTIONS (void)
       Define this hook if you need to do something special to set up the
!      'varasm.c' sections, or if your target has some special sections of
!      its own that you need to create.
  
       GCC calls this hook after processing the command line, but before
       writing any assembly code, and before calling any of the
*************** target does not provide them.
*** 34898,34979 ****
       should be placed in a read-write section; bit 0 should be set if
       local relocations should be placed in a read-write section.
  
!      The default version of this function returns 3 when `-fpic' is in
       effect, and 0 otherwise.  The hook is typically redefined when the
       target cannot support (some kinds of) dynamic relocations in
       read-only sections even in executables.
  
   -- Target Hook: section * TARGET_ASM_SELECT_SECTION (tree EXP, int
            RELOC, unsigned HOST_WIDE_INT ALIGN)
!      Return the section into which EXP should be placed.  You can
!      assume that EXP is either a `VAR_DECL' node or a constant of some
!      sort.  RELOC indicates whether the initial value of EXP requires
!      link-time relocations.  Bit 0 is set when variable contains local
!      relocations only, while bit 1 is set for global relocations.
!      ALIGN is the constant alignment in bits.
  
       The default version of this function takes care of putting
!      read-only variables in `readonly_data_section'.
  
       See also USE_SELECT_SECTION_FOR_FUNCTIONS.
  
   -- Macro: USE_SELECT_SECTION_FOR_FUNCTIONS
       Define this macro if you wish TARGET_ASM_SELECT_SECTION to be
!      called for `FUNCTION_DECL's as well as for variables and constants.
  
!      In the case of a `FUNCTION_DECL', RELOC will be zero if the
!      function has been determined to be likely to be called, and
!      nonzero if it is unlikely to be called.
  
   -- Target Hook: void TARGET_ASM_UNIQUE_SECTION (tree DECL, int RELOC)
!      Build up a unique section name, expressed as a `STRING_CST' node,
!      and assign it to `DECL_SECTION_NAME (DECL)'.  As with
!      `TARGET_ASM_SELECT_SECTION', RELOC indicates whether the initial
       value of EXP requires link-time relocations.
  
       The default version of this function appends the symbol name to the
       ELF section name that would normally be used for the symbol.  For
!      example, the function `foo' would be placed in `.text.foo'.
       Whatever the actual target object format, this is often good
       enough.
  
   -- Target Hook: section * TARGET_ASM_FUNCTION_RODATA_SECTION (tree
            DECL)
!      Return the readonly data section associated with
!      `DECL_SECTION_NAME (DECL)'.  The default version of this function
!      selects `.gnu.linkonce.r.name' if the function's section is
!      `.gnu.linkonce.t.name', `.rodata.name' if function is in
!      `.text.name', and the normal readonly-data section otherwise.
  
   -- Target Hook: const char * TARGET_ASM_MERGEABLE_RODATA_PREFIX
!      Usually, the compiler uses the prefix `".rodata"' to construct
       section names for mergeable constant data.  Define this macro to
       override the string if a different section name should be used.
  
   -- Target Hook: section * TARGET_ASM_TM_CLONE_TABLE_SECTION (void)
       Return the section that should be used for transactional memory
!      clone  tables.
  
   -- Target Hook: section * TARGET_ASM_SELECT_RTX_SECTION (machine_mode
            MODE, rtx X, unsigned HOST_WIDE_INT ALIGN)
!      Return the section into which a constant X, of mode MODE, should
!      be placed.  You can assume that X is some kind of constant in RTL.
!      The argument MODE is redundant except in the case of a `const_int'
       rtx.  ALIGN is the constant alignment in bits.
  
       The default version of this function takes care of putting symbolic
!      constants in `flag_pic' mode in `data_section' and everything else
!      in `readonly_data_section'.
  
!  -- Target Hook: tree TARGET_MANGLE_DECL_ASSEMBLER_NAME (tree DECL,
!           tree ID)
       Define this hook if you need to postprocess the assembler name
!      generated by target-independent code.  The ID provided to this
!      hook will be the computed name (e.g., the macro `DECL_NAME' of the
!      DECL in C, or the mangled name of the DECL in C++).  The return
!      value of the hook is an `IDENTIFIER_NODE' for the appropriate
!      mangled name on your target system.  The default implementation of
!      this hook just returns the ID provided.
  
   -- Target Hook: void TARGET_ENCODE_SECTION_INFO (tree DECL, rtx RTL,
            int NEW_DECL_P)
--- 34477,34558 ----
       should be placed in a read-write section; bit 0 should be set if
       local relocations should be placed in a read-write section.
  
!      The default version of this function returns 3 when '-fpic' is in
       effect, and 0 otherwise.  The hook is typically redefined when the
       target cannot support (some kinds of) dynamic relocations in
       read-only sections even in executables.
  
   -- Target Hook: section * TARGET_ASM_SELECT_SECTION (tree EXP, int
            RELOC, unsigned HOST_WIDE_INT ALIGN)
!      Return the section into which EXP should be placed.  You can assume
!      that EXP is either a 'VAR_DECL' node or a constant of some sort.
!      RELOC indicates whether the initial value of EXP requires link-time
!      relocations.  Bit 0 is set when variable contains local relocations
!      only, while bit 1 is set for global relocations.  ALIGN is the
!      constant alignment in bits.
  
       The default version of this function takes care of putting
!      read-only variables in 'readonly_data_section'.
  
       See also USE_SELECT_SECTION_FOR_FUNCTIONS.
  
   -- Macro: USE_SELECT_SECTION_FOR_FUNCTIONS
       Define this macro if you wish TARGET_ASM_SELECT_SECTION to be
!      called for 'FUNCTION_DECL's as well as for variables and constants.
  
!      In the case of a 'FUNCTION_DECL', RELOC will be zero if the
!      function has been determined to be likely to be called, and nonzero
!      if it is unlikely to be called.
  
   -- Target Hook: void TARGET_ASM_UNIQUE_SECTION (tree DECL, int RELOC)
!      Build up a unique section name, expressed as a 'STRING_CST' node,
!      and assign it to 'DECL_SECTION_NAME (DECL)'.  As with
!      'TARGET_ASM_SELECT_SECTION', RELOC indicates whether the initial
       value of EXP requires link-time relocations.
  
       The default version of this function appends the symbol name to the
       ELF section name that would normally be used for the symbol.  For
!      example, the function 'foo' would be placed in '.text.foo'.
       Whatever the actual target object format, this is often good
       enough.
  
   -- Target Hook: section * TARGET_ASM_FUNCTION_RODATA_SECTION (tree
            DECL)
!      Return the readonly data section associated with 'DECL_SECTION_NAME
!      (DECL)'.  The default version of this function selects
!      '.gnu.linkonce.r.name' if the function's section is
!      '.gnu.linkonce.t.name', '.rodata.name' if function is in
!      '.text.name', and the normal readonly-data section otherwise.
  
   -- Target Hook: const char * TARGET_ASM_MERGEABLE_RODATA_PREFIX
!      Usually, the compiler uses the prefix '".rodata"' to construct
       section names for mergeable constant data.  Define this macro to
       override the string if a different section name should be used.
  
   -- Target Hook: section * TARGET_ASM_TM_CLONE_TABLE_SECTION (void)
       Return the section that should be used for transactional memory
!      clone tables.
  
   -- Target Hook: section * TARGET_ASM_SELECT_RTX_SECTION (machine_mode
            MODE, rtx X, unsigned HOST_WIDE_INT ALIGN)
!      Return the section into which a constant X, of mode MODE, should be
!      placed.  You can assume that X is some kind of constant in RTL.
!      The argument MODE is redundant except in the case of a 'const_int'
       rtx.  ALIGN is the constant alignment in bits.
  
       The default version of this function takes care of putting symbolic
!      constants in 'flag_pic' mode in 'data_section' and everything else
!      in 'readonly_data_section'.
  
!  -- Target Hook: tree TARGET_MANGLE_DECL_ASSEMBLER_NAME (tree DECL, tree
!           ID)
       Define this hook if you need to postprocess the assembler name
!      generated by target-independent code.  The ID provided to this hook
!      will be the computed name (e.g., the macro 'DECL_NAME' of the DECL
!      in C, or the mangled name of the DECL in C++).  The return value of
!      the hook is an 'IDENTIFIER_NODE' for the appropriate mangled name
!      on your target system.  The default implementation of this hook
!      just returns the ID provided.
  
   -- Target Hook: void TARGET_ENCODE_SECTION_INFO (tree DECL, rtx RTL,
            int NEW_DECL_P)
*************** target does not provide them.
*** 34984,35045 ****
       The hook is executed immediately after rtl has been created for
       DECL, which may be a variable or function declaration or an entry
       in the constant pool.  In either case, RTL is the rtl in question.
!      Do _not_ use `DECL_RTL (DECL)' in this hook; that field may not
       have been initialized yet.
  
       In the case of a constant, it is safe to assume that the rtl is a
!      `mem' whose address is a `symbol_ref'.  Most decls will also have
       this form, but that is not guaranteed.  Global register variables,
!      for instance, will have a `reg' for their rtl.  (Normally the
!      right thing to do with such unusual rtl is leave it alone.)
  
!      The NEW_DECL_P argument will be true if this is the first time
!      that `TARGET_ENCODE_SECTION_INFO' has been invoked on this decl.
!      It will be false for subsequent invocations, which will happen for
       duplicate declarations.  Whether or not anything must be done for
       the duplicate declaration depends on whether the hook examines
!      `DECL_ATTRIBUTES'.  NEW_DECL_P is always true when the hook is
       called for a constant.
  
       The usual thing for this hook to do is to record flags in the
!      `symbol_ref', using `SYMBOL_REF_FLAG' or `SYMBOL_REF_FLAGS'.
       Historically, the name string was modified if it was necessary to
       encode more than one bit of information, but this practice is now
!      discouraged; use `SYMBOL_REF_FLAGS'.
  
!      The default definition of this hook, `default_encode_section_info'
!      in `varasm.c', sets a number of commonly-useful bits in
!      `SYMBOL_REF_FLAGS'.  Check whether the default does what you need
       before overriding it.
  
   -- Target Hook: const char * TARGET_STRIP_NAME_ENCODING (const char
            *NAME)
!      Decode NAME and return the real name part, sans the characters
!      that `TARGET_ENCODE_SECTION_INFO' may have added.
  
   -- Target Hook: bool TARGET_IN_SMALL_DATA_P (const_tree EXP)
       Returns true if EXP should be placed into a "small data" section.
       The default version of this hook always returns false.
  
   -- Target Hook: bool TARGET_HAVE_SRODATA_SECTION
!      Contains the value true if the target places read-only "small
!      data" into a separate section.  The default value is false.
  
   -- Target Hook: bool TARGET_PROFILE_BEFORE_PROLOGUE (void)
       It returns true if target wants profile code emitted before
       prologue.
  
       The default version of this hook use the target macro
!      `PROFILE_BEFORE_PROLOGUE'.
  
   -- Target Hook: bool TARGET_BINDS_LOCAL_P (const_tree EXP)
!      Returns true if EXP names an object for which name resolution
!      rules must resolve to the current "module" (dynamic shared library
!      or executable image).
  
       The default version of this hook implements the name resolution
!      rules for ELF, which has a looser model of global name binding
!      than other currently supported object file formats.
  
   -- Target Hook: bool TARGET_HAVE_TLS
       Contains the value true if the target supports thread-local
--- 34563,34624 ----
       The hook is executed immediately after rtl has been created for
       DECL, which may be a variable or function declaration or an entry
       in the constant pool.  In either case, RTL is the rtl in question.
!      Do _not_ use 'DECL_RTL (DECL)' in this hook; that field may not
       have been initialized yet.
  
       In the case of a constant, it is safe to assume that the rtl is a
!      'mem' whose address is a 'symbol_ref'.  Most decls will also have
       this form, but that is not guaranteed.  Global register variables,
!      for instance, will have a 'reg' for their rtl.  (Normally the right
!      thing to do with such unusual rtl is leave it alone.)
  
!      The NEW_DECL_P argument will be true if this is the first time that
!      'TARGET_ENCODE_SECTION_INFO' has been invoked on this decl.  It
!      will be false for subsequent invocations, which will happen for
       duplicate declarations.  Whether or not anything must be done for
       the duplicate declaration depends on whether the hook examines
!      'DECL_ATTRIBUTES'.  NEW_DECL_P is always true when the hook is
       called for a constant.
  
       The usual thing for this hook to do is to record flags in the
!      'symbol_ref', using 'SYMBOL_REF_FLAG' or 'SYMBOL_REF_FLAGS'.
       Historically, the name string was modified if it was necessary to
       encode more than one bit of information, but this practice is now
!      discouraged; use 'SYMBOL_REF_FLAGS'.
  
!      The default definition of this hook, 'default_encode_section_info'
!      in 'varasm.c', sets a number of commonly-useful bits in
!      'SYMBOL_REF_FLAGS'.  Check whether the default does what you need
       before overriding it.
  
   -- Target Hook: const char * TARGET_STRIP_NAME_ENCODING (const char
            *NAME)
!      Decode NAME and return the real name part, sans the characters that
!      'TARGET_ENCODE_SECTION_INFO' may have added.
  
   -- Target Hook: bool TARGET_IN_SMALL_DATA_P (const_tree EXP)
       Returns true if EXP should be placed into a "small data" section.
       The default version of this hook always returns false.
  
   -- Target Hook: bool TARGET_HAVE_SRODATA_SECTION
!      Contains the value true if the target places read-only "small data"
!      into a separate section.  The default value is false.
  
   -- Target Hook: bool TARGET_PROFILE_BEFORE_PROLOGUE (void)
       It returns true if target wants profile code emitted before
       prologue.
  
       The default version of this hook use the target macro
!      'PROFILE_BEFORE_PROLOGUE'.
  
   -- Target Hook: bool TARGET_BINDS_LOCAL_P (const_tree EXP)
!      Returns true if EXP names an object for which name resolution rules
!      must resolve to the current "module" (dynamic shared library or
!      executable image).
  
       The default version of this hook implements the name resolution
!      rules for ELF, which has a looser model of global name binding than
!      other currently supported object file formats.
  
   -- Target Hook: bool TARGET_HAVE_TLS
       Contains the value true if the target supports thread-local
*************** File: gccint.info,  Node: PIC,  Next: As
*** 35054,35062 ****
  This section describes macros that help implement generation of position
  independent code.  Simply defining these macros is not enough to
  generate valid PIC; you must also add support to the hook
! `TARGET_LEGITIMATE_ADDRESS_P' and to the macro `PRINT_OPERAND_ADDRESS',
! as well as `LEGITIMIZE_ADDRESS'.  You must modify the definition of
! `movsi' to do something appropriate when the source operand contains a
  symbolic address.  You may also need to alter the handling of switch
  statements so that they use relative addresses.
  
--- 34633,34641 ----
  This section describes macros that help implement generation of position
  independent code.  Simply defining these macros is not enough to
  generate valid PIC; you must also add support to the hook
! 'TARGET_LEGITIMATE_ADDRESS_P' and to the macro 'PRINT_OPERAND_ADDRESS',
! as well as 'LEGITIMIZE_ADDRESS'.  You must modify the definition of
! 'movsi' to do something appropriate when the source operand contains a
  symbolic address.  You may also need to alter the handling of switch
  statements so that they use relative addresses.
  
*************** statements so that they use relative add
*** 35068,35088 ****
       once, as with the stack pointer and frame pointer registers.  If
       this macro is not defined, it is up to the machine-dependent files
       to allocate such a register (if necessary).  Note that this
!      register must be fixed when in use (e.g.  when `flag_pic' is true).
  
   -- Macro: PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
       A C expression that is nonzero if the register defined by
!      `PIC_OFFSET_TABLE_REGNUM' is clobbered by calls.  If not defined,
       the default is zero.  Do not define this macro if
!      `PIC_OFFSET_TABLE_REGNUM' is not defined.
  
   -- Macro: LEGITIMATE_PIC_OPERAND_P (X)
       A C expression that is nonzero if X is a legitimate immediate
       operand on the target machine when generating position independent
!      code.  You can assume that X satisfies `CONSTANT_P', so you need
       not check this.  You can also assume FLAG_PIC is true, so you need
       not check it either.  You need not define this macro if all
!      constants (including `SYMBOL_REF') can be immediate operands when
       generating position independent code.
  
  
--- 34647,34667 ----
       once, as with the stack pointer and frame pointer registers.  If
       this macro is not defined, it is up to the machine-dependent files
       to allocate such a register (if necessary).  Note that this
!      register must be fixed when in use (e.g. when 'flag_pic' is true).
  
   -- Macro: PIC_OFFSET_TABLE_REG_CALL_CLOBBERED
       A C expression that is nonzero if the register defined by
!      'PIC_OFFSET_TABLE_REGNUM' is clobbered by calls.  If not defined,
       the default is zero.  Do not define this macro if
!      'PIC_OFFSET_TABLE_REGNUM' is not defined.
  
   -- Macro: LEGITIMATE_PIC_OPERAND_P (X)
       A C expression that is nonzero if X is a legitimate immediate
       operand on the target machine when generating position independent
!      code.  You can assume that X satisfies 'CONSTANT_P', so you need
       not check this.  You can also assume FLAG_PIC is true, so you need
       not check it either.  You need not define this macro if all
!      constants (including 'SYMBOL_REF') can be immediate operands when
       generating position independent code.
  
  
*************** File: gccint.info,  Node: File Framework
*** 35120,35176 ****
  This describes the overall framework of an assembly file.
  
   -- Target Hook: void TARGET_ASM_FILE_START (void)
!      Output to `asm_out_file' any text which the assembler expects to
       find at the beginning of a file.  The default behavior is
       controlled by two flags, documented below.  Unless your target's
!      assembler is quite unusual, if you override the default, you
!      should call `default_file_start' at some point in your target
!      hook.  This lets other target files rely on these variables.
  
   -- Target Hook: bool TARGET_ASM_FILE_START_APP_OFF
!      If this flag is true, the text of the macro `ASM_APP_OFF' will be
       printed as the very first line in the assembly file, unless
!      `-fverbose-asm' is in effect.  (If that macro has been defined to
       the empty string, this variable has no effect.)  With the normal
!      definition of `ASM_APP_OFF', the effect is to notify the GNU
       assembler that it need not bother stripping comments or extra
       whitespace from its input.  This allows it to work a bit faster.
  
       The default is false.  You should not set it to true unless you
!      have verified that your port does not generate any extra
!      whitespace or comments that will cause GAS to issue errors in
!      NO_APP mode.
  
   -- Target Hook: bool TARGET_ASM_FILE_START_FILE_DIRECTIVE
!      If this flag is true, `output_file_directive' will be called for
!      the primary source file, immediately after printing `ASM_APP_OFF'
       (if that is enabled).  Most ELF assemblers expect this to be done.
       The default is false.
  
   -- Target Hook: void TARGET_ASM_FILE_END (void)
!      Output to `asm_out_file' any text which the assembler expects to
       find at the end of a file.  The default is to output nothing.
  
   -- Function: void file_end_indicate_exec_stack ()
!      Some systems use a common convention, the `.note.GNU-stack'
!      special section, to indicate whether or not an object file relies
!      on the stack being executable.  If your system uses this
!      convention, you should define `TARGET_ASM_FILE_END' to this
!      function.  If you need to do other things in that hook, have your
!      hook function call this function.
  
   -- Target Hook: void TARGET_ASM_LTO_START (void)
!      Output to `asm_out_file' any text which the assembler expects to
       find at the start of an LTO section.  The default is to output
       nothing.
  
   -- Target Hook: void TARGET_ASM_LTO_END (void)
!      Output to `asm_out_file' any text which the assembler expects to
       find at the end of an LTO section.  The default is to output
       nothing.
  
   -- Target Hook: void TARGET_ASM_CODE_END (void)
!      Output to `asm_out_file' any text which is needed before emitting
       unwind info and debug info at the end of a file.  Some targets emit
       here PIC setup thunks that cannot be emitted at the end of file,
       because they couldn't have unwind info then.  The default is to
--- 34699,34754 ----
  This describes the overall framework of an assembly file.
  
   -- Target Hook: void TARGET_ASM_FILE_START (void)
!      Output to 'asm_out_file' any text which the assembler expects to
       find at the beginning of a file.  The default behavior is
       controlled by two flags, documented below.  Unless your target's
!      assembler is quite unusual, if you override the default, you should
!      call 'default_file_start' at some point in your target hook.  This
!      lets other target files rely on these variables.
  
   -- Target Hook: bool TARGET_ASM_FILE_START_APP_OFF
!      If this flag is true, the text of the macro 'ASM_APP_OFF' will be
       printed as the very first line in the assembly file, unless
!      '-fverbose-asm' is in effect.  (If that macro has been defined to
       the empty string, this variable has no effect.)  With the normal
!      definition of 'ASM_APP_OFF', the effect is to notify the GNU
       assembler that it need not bother stripping comments or extra
       whitespace from its input.  This allows it to work a bit faster.
  
       The default is false.  You should not set it to true unless you
!      have verified that your port does not generate any extra whitespace
!      or comments that will cause GAS to issue errors in NO_APP mode.
  
   -- Target Hook: bool TARGET_ASM_FILE_START_FILE_DIRECTIVE
!      If this flag is true, 'output_file_directive' will be called for
!      the primary source file, immediately after printing 'ASM_APP_OFF'
       (if that is enabled).  Most ELF assemblers expect this to be done.
       The default is false.
  
   -- Target Hook: void TARGET_ASM_FILE_END (void)
!      Output to 'asm_out_file' any text which the assembler expects to
       find at the end of a file.  The default is to output nothing.
  
   -- Function: void file_end_indicate_exec_stack ()
!      Some systems use a common convention, the '.note.GNU-stack' special
!      section, to indicate whether or not an object file relies on the
!      stack being executable.  If your system uses this convention, you
!      should define 'TARGET_ASM_FILE_END' to this function.  If you need
!      to do other things in that hook, have your hook function call this
!      function.
  
   -- Target Hook: void TARGET_ASM_LTO_START (void)
!      Output to 'asm_out_file' any text which the assembler expects to
       find at the start of an LTO section.  The default is to output
       nothing.
  
   -- Target Hook: void TARGET_ASM_LTO_END (void)
!      Output to 'asm_out_file' any text which the assembler expects to
       find at the end of an LTO section.  The default is to output
       nothing.
  
   -- Target Hook: void TARGET_ASM_CODE_END (void)
!      Output to 'asm_out_file' any text which is needed before emitting
       unwind info and debug info at the end of a file.  Some targets emit
       here PIC setup thunks that cannot be emitted at the end of file,
       because they couldn't have unwind info then.  The default is to
*************** This describes the overall framework of
*** 35178,35197 ****
  
   -- Macro: ASM_COMMENT_START
       A C string constant describing how to begin a comment in the target
!      assembler language.  The compiler assumes that the comment will
!      end at the end of the line.
  
   -- Macro: ASM_APP_ON
!      A C string constant for text to be output before each `asm'
!      statement or group of consecutive ones.  Normally this is
!      `"#APP"', which is a comment that has no effect on most assemblers
!      but tells the GNU assembler that it must check the lines that
!      follow for all valid assembler constructs.
  
   -- Macro: ASM_APP_OFF
!      A C string constant for text to be output after each `asm'
       statement or group of consecutive ones.  Normally this is
!      `"#NO_APP"', which tells the GNU assembler to resume making the
       time-saving assumptions that are valid for ordinary compiler
       output.
  
--- 34756,34775 ----
  
   -- Macro: ASM_COMMENT_START
       A C string constant describing how to begin a comment in the target
!      assembler language.  The compiler assumes that the comment will end
!      at the end of the line.
  
   -- Macro: ASM_APP_ON
!      A C string constant for text to be output before each 'asm'
!      statement or group of consecutive ones.  Normally this is '"#APP"',
!      which is a comment that has no effect on most assemblers but tells
!      the GNU assembler that it must check the lines that follow for all
!      valid assembler constructs.
  
   -- Macro: ASM_APP_OFF
!      A C string constant for text to be output after each 'asm'
       statement or group of consecutive ones.  Normally this is
!      '"#NO_APP"', which tells the GNU assembler to resume making the
       time-saving assumptions that are valid for ordinary compiler
       output.
  
*************** This describes the overall framework of
*** 35209,35245 ****
       indicates that filename NAME is the current source file to the
       stdio stream FILE.
  
!      This target hook need not be defined if the standard form of
!      output for the file format in use is appropriate.
  
   -- Target Hook: void TARGET_ASM_OUTPUT_IDENT (const char *NAME)
!      Output a string based on NAME, suitable for the `#ident'
!      directive, or the equivalent directive or pragma in non-C-family
!      languages.  If this hook is not defined, nothing is output for the
!      `#ident'  directive.
  
   -- Macro: OUTPUT_QUOTED_STRING (STREAM, STRING)
       A C statement to output the string STRING to the stdio stream
!      STREAM.  If you do not call the function `output_quoted_string' in
!      your config files, GCC will only call it to output filenames to
!      the assembler source.  So you can use it to canonicalize the format
!      of the filename using this macro.
  
   -- Target Hook: void TARGET_ASM_NAMED_SECTION (const char *NAME,
            unsigned int FLAGS, tree DECL)
       Output assembly directives to switch to section NAME.  The section
       should have attributes as specified by FLAGS, which is a bit mask
!      of the `SECTION_*' flags defined in `output.h'.  If DECL is
!      non-NULL, it is the `VAR_DECL' or `FUNCTION_DECL' with which this
       section is associated.
  
   -- Target Hook: section * TARGET_ASM_FUNCTION_SECTION (tree DECL, enum
            node_frequency FREQ, bool STARTUP, bool EXIT)
!      Return preferred text (sub)section for function DECL.  Main
!      purpose of this function is to separate cold, normal and hot
!      functions. STARTUP is true when function is known to be used only
!      at startup (from static constructors or it is `main()').  EXIT is
!      true when function is known to be used only at exit (from static
       destructors).  Return NULL if function should go to default text
       section.
  
--- 34787,34823 ----
       indicates that filename NAME is the current source file to the
       stdio stream FILE.
  
!      This target hook need not be defined if the standard form of output
!      for the file format in use is appropriate.
  
   -- Target Hook: void TARGET_ASM_OUTPUT_IDENT (const char *NAME)
!      Output a string based on NAME, suitable for the '#ident' directive,
!      or the equivalent directive or pragma in non-C-family languages.
!      If this hook is not defined, nothing is output for the '#ident'
!      directive.
  
   -- Macro: OUTPUT_QUOTED_STRING (STREAM, STRING)
       A C statement to output the string STRING to the stdio stream
!      STREAM.  If you do not call the function 'output_quoted_string' in
!      your config files, GCC will only call it to output filenames to the
!      assembler source.  So you can use it to canonicalize the format of
!      the filename using this macro.
  
   -- Target Hook: void TARGET_ASM_NAMED_SECTION (const char *NAME,
            unsigned int FLAGS, tree DECL)
       Output assembly directives to switch to section NAME.  The section
       should have attributes as specified by FLAGS, which is a bit mask
!      of the 'SECTION_*' flags defined in 'output.h'.  If DECL is
!      non-NULL, it is the 'VAR_DECL' or 'FUNCTION_DECL' with which this
       section is associated.
  
   -- Target Hook: section * TARGET_ASM_FUNCTION_SECTION (tree DECL, enum
            node_frequency FREQ, bool STARTUP, bool EXIT)
!      Return preferred text (sub)section for function DECL.  Main purpose
!      of this function is to separate cold, normal and hot functions.
!      STARTUP is true when function is known to be used only at startup
!      (from static constructors or it is 'main()').  EXIT is true when
!      function is known to be used only at exit (from static
       destructors).  Return NULL if function should go to default text
       section.
  
*************** This describes the overall framework of
*** 35247,35278 ****
            *FILE, tree DECL, bool NEW_IS_COLD)
       Used by the target to emit any assembler directives or additional
       labels needed when a function is partitioned between different
!      sections.  Output should be written to FILE.  The function  decl
!      is available as DECL and the new section is `cold' if  NEW_IS_COLD
!      is `true'.
  
   -- Common Target Hook: bool TARGET_HAVE_NAMED_SECTIONS
       This flag is true if the target supports
!      `TARGET_ASM_NAMED_SECTION'.  It must not be modified by
       command-line option processing.
  
   -- Target Hook: bool TARGET_HAVE_SWITCHABLE_BSS_SECTIONS
       This flag is true if we can create zeroed data by switching to a
!      BSS section and then using `ASM_OUTPUT_SKIP' to allocate the space.
       This is true on most ELF targets.
  
   -- Target Hook: unsigned int TARGET_SECTION_TYPE_FLAGS (tree DECL,
            const char *NAME, int RELOC)
       Choose a set of section attributes for use by
!      `TARGET_ASM_NAMED_SECTION' based on a variable or function decl, a
       section name, and whether or not the declaration's initializer may
       contain runtime relocations.  DECL may be null, in which case
       read-write data should be assumed.
  
       The default version of this function handles choosing code vs data,
!      read-only vs read-write data, and `flag_pic'.  You should only
!      need to override this if your target has special flags that might
!      be set via `__attribute__'.
  
   -- Target Hook: int TARGET_ASM_RECORD_GCC_SWITCHES (print_switch_type
            TYPE, const char *TEXT)
--- 34825,34856 ----
            *FILE, tree DECL, bool NEW_IS_COLD)
       Used by the target to emit any assembler directives or additional
       labels needed when a function is partitioned between different
!      sections.  Output should be written to FILE.  The function decl is
!      available as DECL and the new section is 'cold' if NEW_IS_COLD is
!      'true'.
  
   -- Common Target Hook: bool TARGET_HAVE_NAMED_SECTIONS
       This flag is true if the target supports
!      'TARGET_ASM_NAMED_SECTION'.  It must not be modified by
       command-line option processing.
  
   -- Target Hook: bool TARGET_HAVE_SWITCHABLE_BSS_SECTIONS
       This flag is true if we can create zeroed data by switching to a
!      BSS section and then using 'ASM_OUTPUT_SKIP' to allocate the space.
       This is true on most ELF targets.
  
   -- Target Hook: unsigned int TARGET_SECTION_TYPE_FLAGS (tree DECL,
            const char *NAME, int RELOC)
       Choose a set of section attributes for use by
!      'TARGET_ASM_NAMED_SECTION' based on a variable or function decl, a
       section name, and whether or not the declaration's initializer may
       contain runtime relocations.  DECL may be null, in which case
       read-write data should be assumed.
  
       The default version of this function handles choosing code vs data,
!      read-only vs read-write data, and 'flag_pic'.  You should only need
!      to override this if your target has special flags that might be set
!      via '__attribute__'.
  
   -- Target Hook: int TARGET_ASM_RECORD_GCC_SWITCHES (print_switch_type
            TYPE, const char *TEXT)
*************** This describes the overall framework of
*** 35281,35312 ****
       are enabled.  The TYPE argument specifies what is being recorded.
       It can take the following values:
  
!     `SWITCH_TYPE_PASSED'
            TEXT is a command line switch that has been set by the user.
  
!     `SWITCH_TYPE_ENABLED'
            TEXT is an option which has been enabled.  This might be as a
            direct result of a command line switch, or because it is
            enabled by default or because it has been enabled as a side
            effect of a different command line switch.  For example, the
!           `-O2' switch enables various different individual
!           optimization passes.
  
!     `SWITCH_TYPE_DESCRIPTIVE'
            TEXT is either NULL or some descriptive text which should be
            ignored.  If TEXT is NULL then it is being used to warn the
            target hook that either recording is starting or ending.  The
            first time TYPE is SWITCH_TYPE_DESCRIPTIVE and TEXT is NULL,
!           the warning is for start up and the second time the warning
!           is for wind down.  This feature is to allow the target hook
!           to make any necessary preparations before it starts to record
            switches and to perform any necessary tidying up after it has
            finished recording switches.
  
!     `SWITCH_TYPE_LINE_START'
            This option can be ignored by this target hook.
  
!     `SWITCH_TYPE_LINE_END'
            This option can be ignored by this target hook.
  
       The hook's return value must be zero.  Other return values may be
--- 34859,34890 ----
       are enabled.  The TYPE argument specifies what is being recorded.
       It can take the following values:
  
!      'SWITCH_TYPE_PASSED'
            TEXT is a command line switch that has been set by the user.
  
!      'SWITCH_TYPE_ENABLED'
            TEXT is an option which has been enabled.  This might be as a
            direct result of a command line switch, or because it is
            enabled by default or because it has been enabled as a side
            effect of a different command line switch.  For example, the
!           '-O2' switch enables various different individual optimization
!           passes.
  
!      'SWITCH_TYPE_DESCRIPTIVE'
            TEXT is either NULL or some descriptive text which should be
            ignored.  If TEXT is NULL then it is being used to warn the
            target hook that either recording is starting or ending.  The
            first time TYPE is SWITCH_TYPE_DESCRIPTIVE and TEXT is NULL,
!           the warning is for start up and the second time the warning is
!           for wind down.  This feature is to allow the target hook to
!           make any necessary preparations before it starts to record
            switches and to perform any necessary tidying up after it has
            finished recording switches.
  
!      'SWITCH_TYPE_LINE_START'
            This option can be ignored by this target hook.
  
!      'SWITCH_TYPE_LINE_END'
            This option can be ignored by this target hook.
  
       The hook's return value must be zero.  Other return values may be
*************** This describes the overall framework of
*** 35317,35327 ****
       it records the switches as ASCII text inside a new, string
       mergeable section in the assembler output file.  The name of the
       new section is provided by the
!      `TARGET_ASM_RECORD_GCC_SWITCHES_SECTION' target hook.
  
   -- Target Hook: const char * TARGET_ASM_RECORD_GCC_SWITCHES_SECTION
       This is the name of the section that will be created by the example
!      ELF implementation of the `TARGET_ASM_RECORD_GCC_SWITCHES' target
       hook.
  
  
--- 34895,34905 ----
       it records the switches as ASCII text inside a new, string
       mergeable section in the assembler output file.  The name of the
       new section is provided by the
!      'TARGET_ASM_RECORD_GCC_SWITCHES_SECTION' target hook.
  
   -- Target Hook: const char * TARGET_ASM_RECORD_GCC_SWITCHES_SECTION
       This is the name of the section that will be created by the example
!      ELF implementation of the 'TARGET_ASM_RECORD_GCC_SWITCHES' target
       hook.
  
  
*************** File: gccint.info,  Node: Data Output,
*** 35340,35349 ****
   -- Target Hook: const char * TARGET_ASM_UNALIGNED_DI_OP
   -- Target Hook: const char * TARGET_ASM_UNALIGNED_TI_OP
       These hooks specify assembly directives for creating certain kinds
!      of integer object.  The `TARGET_ASM_BYTE_OP' directive creates a
!      byte-sized object, the `TARGET_ASM_ALIGNED_HI_OP' one creates an
       aligned two-byte object, and so on.  Any of the hooks may be
!      `NULL', indicating that no suitable directive is available.
  
       The compiler will print these strings at the start of a new line,
       followed immediately by the object's initial value.  In most cases,
--- 34918,34927 ----
   -- Target Hook: const char * TARGET_ASM_UNALIGNED_DI_OP
   -- Target Hook: const char * TARGET_ASM_UNALIGNED_TI_OP
       These hooks specify assembly directives for creating certain kinds
!      of integer object.  The 'TARGET_ASM_BYTE_OP' directive creates a
!      byte-sized object, the 'TARGET_ASM_ALIGNED_HI_OP' one creates an
       aligned two-byte object, and so on.  Any of the hooks may be
!      'NULL', indicating that no suitable directive is available.
  
       The compiler will print these strings at the start of a new line,
       followed immediately by the object's initial value.  In most cases,
*************** File: gccint.info,  Node: Data Output,
*** 35351,35366 ****
  
   -- Target Hook: bool TARGET_ASM_INTEGER (rtx X, unsigned int SIZE, int
            ALIGNED_P)
!      The `assemble_integer' function uses this hook to output an
!      integer object.  X is the object's value, SIZE is its size in
!      bytes and ALIGNED_P indicates whether it is aligned.  The function
!      should return `true' if it was able to output the object.  If it
!      returns false, `assemble_integer' will try to split the object
!      into smaller parts.
  
       The default implementation of this hook will use the
!      `TARGET_ASM_BYTE_OP' family of strings, returning `false' when the
!      relevant string is `NULL'.
  
   -- Target Hook: void TARGET_ASM_DECL_END (void)
       Define this hook if the target assembler requires a special marker
--- 34929,34944 ----
  
   -- Target Hook: bool TARGET_ASM_INTEGER (rtx X, unsigned int SIZE, int
            ALIGNED_P)
!      The 'assemble_integer' function uses this hook to output an integer
!      object.  X is the object's value, SIZE is its size in bytes and
!      ALIGNED_P indicates whether it is aligned.  The function should
!      return 'true' if it was able to output the object.  If it returns
!      false, 'assemble_integer' will try to split the object into smaller
!      parts.
  
       The default implementation of this hook will use the
!      'TARGET_ASM_BYTE_OP' family of strings, returning 'false' when the
!      relevant string is 'NULL'.
  
   -- Target Hook: void TARGET_ASM_DECL_END (void)
       Define this hook if the target assembler requires a special marker
*************** File: gccint.info,  Node: Data Output,
*** 35368,35402 ****
  
   -- Target Hook: bool TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA (FILE *FILE,
            rtx X)
!      A target hook to recognize RTX patterns that `output_addr_const'
       can't deal with, and output assembly code to FILE corresponding to
       the pattern X.  This may be used to allow machine-dependent
!      `UNSPEC's to appear within constants.
  
       If target hook fails to recognize a pattern, it must return
!      `false', so that a standard error message is printed.  If it
!      prints an error message itself, by calling, for example,
!      `output_operand_lossage', it may just return `true'.
  
   -- Macro: ASM_OUTPUT_ASCII (STREAM, PTR, LEN)
       A C statement to output to the stdio stream STREAM an assembler
       instruction to assemble a string constant containing the LEN bytes
!      at PTR.  PTR will be a C expression of type `char *' and LEN a C
!      expression of type `int'.
  
!      If the assembler has a `.ascii' pseudo-op as found in the Berkeley
!      Unix assembler, do not define the macro `ASM_OUTPUT_ASCII'.
  
   -- Macro: ASM_OUTPUT_FDESC (STREAM, DECL, N)
       A C statement to output word N of a function descriptor for DECL.
!      This must be defined if `TARGET_VTABLE_USES_DESCRIPTORS' is
       defined, and is otherwise unused.
  
   -- Macro: CONSTANT_POOL_BEFORE_FUNCTION
       You may define this macro as a C expression.  You should define the
       expression to have a nonzero value if GCC should output the
!      constant pool for a function before the code for the function, or
!      a zero value if GCC should output the constant pool after the
       function.  If you do not define this macro, the usual case, GCC
       will output the constant pool before the function.
  
--- 34946,34980 ----
  
   -- Target Hook: bool TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA (FILE *FILE,
            rtx X)
!      A target hook to recognize RTX patterns that 'output_addr_const'
       can't deal with, and output assembly code to FILE corresponding to
       the pattern X.  This may be used to allow machine-dependent
!      'UNSPEC's to appear within constants.
  
       If target hook fails to recognize a pattern, it must return
!      'false', so that a standard error message is printed.  If it prints
!      an error message itself, by calling, for example,
!      'output_operand_lossage', it may just return 'true'.
  
   -- Macro: ASM_OUTPUT_ASCII (STREAM, PTR, LEN)
       A C statement to output to the stdio stream STREAM an assembler
       instruction to assemble a string constant containing the LEN bytes
!      at PTR.  PTR will be a C expression of type 'char *' and LEN a C
!      expression of type 'int'.
  
!      If the assembler has a '.ascii' pseudo-op as found in the Berkeley
!      Unix assembler, do not define the macro 'ASM_OUTPUT_ASCII'.
  
   -- Macro: ASM_OUTPUT_FDESC (STREAM, DECL, N)
       A C statement to output word N of a function descriptor for DECL.
!      This must be defined if 'TARGET_VTABLE_USES_DESCRIPTORS' is
       defined, and is otherwise unused.
  
   -- Macro: CONSTANT_POOL_BEFORE_FUNCTION
       You may define this macro as a C expression.  You should define the
       expression to have a nonzero value if GCC should output the
!      constant pool for a function before the code for the function, or a
!      zero value if GCC should output the constant pool after the
       function.  If you do not define this macro, the usual case, GCC
       will output the constant pool before the function.
  
*************** File: gccint.info,  Node: Data Output,
*** 35411,35426 ****
       If no constant-pool prefix is required, the usual case, this macro
       need not be defined.
  
!  -- Macro: ASM_OUTPUT_SPECIAL_POOL_ENTRY (FILE, X, MODE, ALIGN,
!           LABELNO, JUMPTO)
       A C statement (with or without semicolon) to output a constant in
!      the constant pool, if it needs special treatment.  (This macro
!      need not do anything for RTL expressions that can be output
!      normally.)
  
       The argument FILE is the standard I/O stream to output the
       assembler code on.  X is the RTL expression for the constant to
!      output, and MODE is the machine mode (in case X is a `const_int').
       ALIGN is the required alignment for the value X; you should output
       an assembler directive to force this much alignment.
  
--- 34989,35003 ----
       If no constant-pool prefix is required, the usual case, this macro
       need not be defined.
  
!  -- Macro: ASM_OUTPUT_SPECIAL_POOL_ENTRY (FILE, X, MODE, ALIGN, LABELNO,
!           JUMPTO)
       A C statement (with or without semicolon) to output a constant in
!      the constant pool, if it needs special treatment.  (This macro need
!      not do anything for RTL expressions that can be output normally.)
  
       The argument FILE is the standard I/O stream to output the
       assembler code on.  X is the RTL expression for the constant to
!      output, and MODE is the machine mode (in case X is a 'const_int').
       ALIGN is the required alignment for the value X; you should output
       an assembler directive to force this much alignment.
  
*************** File: gccint.info,  Node: Data Output,
*** 35429,35438 ****
       responsible for outputting the label definition at the proper
       place.  Here is how to do this:
  
!           `(*targetm.asm_out.internal_label)' (FILE, "LC", LABELNO);
  
       When you output a pool entry specially, you should end with a
!      `goto' to the label JUMPTO.  This will prevent the same pool entry
       from being output a second time in the usual manner.
  
       You need not define this macro if it would do nothing.
--- 35006,35015 ----
       responsible for outputting the label definition at the proper
       place.  Here is how to do this:
  
!           (*targetm.asm_out.internal_label) (FILE, "LC", LABELNO);
  
       When you output a pool entry specially, you should end with a
!      'goto' to the label JUMPTO.  This will prevent the same pool entry
       from being output a second time in the usual manner.
  
       You need not define this macro if it would do nothing.
*************** File: gccint.info,  Node: Data Output,
*** 35455,35471 ****
       line separator uses multiple characters.
  
       If you do not define this macro, the default is that only the
!      character `;' is treated as a logical line separator.
  
   -- Target Hook: const char * TARGET_ASM_OPEN_PAREN
   -- Target Hook: const char * TARGET_ASM_CLOSE_PAREN
!      These target hooks are C string constants, describing the syntax
!      in the assembler for grouping arithmetic expressions.  If not
       overridden, they default to normal parentheses, which is correct
       for most assemblers.
  
!  These macros are provided by `real.h' for writing the definitions of
! `ASM_OUTPUT_DOUBLE' and the like:
  
   -- Macro: REAL_VALUE_TO_TARGET_SINGLE (X, L)
   -- Macro: REAL_VALUE_TO_TARGET_DOUBLE (X, L)
--- 35032,35048 ----
       line separator uses multiple characters.
  
       If you do not define this macro, the default is that only the
!      character ';' is treated as a logical line separator.
  
   -- Target Hook: const char * TARGET_ASM_OPEN_PAREN
   -- Target Hook: const char * TARGET_ASM_CLOSE_PAREN
!      These target hooks are C string constants, describing the syntax in
!      the assembler for grouping arithmetic expressions.  If not
       overridden, they default to normal parentheses, which is correct
       for most assemblers.
  
!  These macros are provided by 'real.h' for writing the definitions of
! 'ASM_OUTPUT_DOUBLE' and the like:
  
   -- Macro: REAL_VALUE_TO_TARGET_SINGLE (X, L)
   -- Macro: REAL_VALUE_TO_TARGET_DOUBLE (X, L)
*************** File: gccint.info,  Node: Data Output,
*** 35473,35491 ****
   -- Macro: REAL_VALUE_TO_TARGET_DECIMAL32 (X, L)
   -- Macro: REAL_VALUE_TO_TARGET_DECIMAL64 (X, L)
   -- Macro: REAL_VALUE_TO_TARGET_DECIMAL128 (X, L)
!      These translate X, of type `REAL_VALUE_TYPE', to the target's
       floating point representation, and store its bit pattern in the
!      variable L.  For `REAL_VALUE_TO_TARGET_SINGLE' and
!      `REAL_VALUE_TO_TARGET_DECIMAL32', this variable should be a simple
!      `long int'.  For the others, it should be an array of `long int'.
       The number of elements in this array is determined by the size of
       the desired target floating point data type: 32 bits of it go in
!      each `long int' array element.  Each array element holds 32 bits
!      of the result, even if `long int' is wider than 32 bits on the
!      host machine.
  
       The array element values are designed so that you can print them
!      out using `fprintf' in the order they should appear in the target
       machine's memory.
  
  
--- 35050,35068 ----
   -- Macro: REAL_VALUE_TO_TARGET_DECIMAL32 (X, L)
   -- Macro: REAL_VALUE_TO_TARGET_DECIMAL64 (X, L)
   -- Macro: REAL_VALUE_TO_TARGET_DECIMAL128 (X, L)
!      These translate X, of type 'REAL_VALUE_TYPE', to the target's
       floating point representation, and store its bit pattern in the
!      variable L.  For 'REAL_VALUE_TO_TARGET_SINGLE' and
!      'REAL_VALUE_TO_TARGET_DECIMAL32', this variable should be a simple
!      'long int'.  For the others, it should be an array of 'long int'.
       The number of elements in this array is determined by the size of
       the desired target floating point data type: 32 bits of it go in
!      each 'long int' array element.  Each array element holds 32 bits of
!      the result, even if 'long int' is wider than 32 bits on the host
!      machine.
  
       The array element values are designed so that you can print them
!      out using 'fprintf' in the order they should appear in the target
       machine's memory.
  
  
*************** Each of the macros in this section is us
*** 35498,35508 ****
  outputting a single uninitialized variable.
  
   -- Macro: ASM_OUTPUT_COMMON (STREAM, NAME, SIZE, ROUNDED)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM the assembler definition of a common-label named NAME whose
!      size is SIZE bytes.  The variable ROUNDED is the size rounded up
!      to whatever alignment the caller wants.  It is possible that SIZE
!      may be zero, for instance if a struct with no other member than a
       zero-length array is defined.  In this case, the backend must
       output a symbol definition that allocates at least one byte, both
       so that the address of the resulting object does not compare equal
--- 35075,35085 ----
  outputting a single uninitialized variable.
  
   -- Macro: ASM_OUTPUT_COMMON (STREAM, NAME, SIZE, ROUNDED)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      the assembler definition of a common-label named NAME whose size is
!      SIZE bytes.  The variable ROUNDED is the size rounded up to
!      whatever alignment the caller wants.  It is possible that SIZE may
!      be zero, for instance if a struct with no other member than a
       zero-length array is defined.  In this case, the backend must
       output a symbol definition that allocates at least one byte, both
       so that the address of the resulting object does not compare equal
*************** outputting a single uninitialized variab
*** 35510,35590 ****
       the concept of a zero-sized common symbol, as that is how they
       represent an ordinary undefined external.
  
!      Use the expression `assemble_name (STREAM, NAME)' to output the
!      name itself; before and after that, output the additional
!      assembler syntax for defining the name, and a newline.
  
       This macro controls how the assembler definitions of uninitialized
       common global variables are output.
  
   -- Macro: ASM_OUTPUT_ALIGNED_COMMON (STREAM, NAME, SIZE, ALIGNMENT)
!      Like `ASM_OUTPUT_COMMON' except takes the required alignment as a
       separate, explicit argument.  If you define this macro, it is used
!      in place of `ASM_OUTPUT_COMMON', and gives you more flexibility in
       handling the required alignment of the variable.  The alignment is
       specified as the number of bits.
  
   -- Macro: ASM_OUTPUT_ALIGNED_DECL_COMMON (STREAM, DECL, NAME, SIZE,
            ALIGNMENT)
!      Like `ASM_OUTPUT_ALIGNED_COMMON' except that DECL of the variable
!      to be output, if there is one, or `NULL_TREE' if there is no
       corresponding variable.  If you define this macro, GCC will use it
!      in place of both `ASM_OUTPUT_COMMON' and
!      `ASM_OUTPUT_ALIGNED_COMMON'.  Define this macro when you need to
       see the variable's decl in order to chose what to output.
  
   -- Macro: ASM_OUTPUT_ALIGNED_BSS (STREAM, DECL, NAME, SIZE, ALIGNMENT)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM the assembler definition of uninitialized global DECL named
!      NAME whose size is SIZE bytes.  The variable ALIGNMENT is the
!      alignment specified as the number of bits.
  
!      Try to use function `asm_output_aligned_bss' defined in file
!      `varasm.c' when defining this macro.  If unable, use the expression
!      `assemble_name (STREAM, NAME)' to output the name itself; before
       and after that, output the additional assembler syntax for defining
       the name, and a newline.
  
       There are two ways of handling global BSS.  One is to define this
!      macro.  The other is to have `TARGET_ASM_SELECT_SECTION' return a
       switchable BSS section (*note
       TARGET_HAVE_SWITCHABLE_BSS_SECTIONS::).  You do not need to do
       both.
  
!      Some languages do not have `common' data, and require a non-common
       form of global BSS in order to handle uninitialized globals
       efficiently.  C++ is one example of this.  However, if the target
       does not support global BSS, the front end may choose to make
       globals common in order to save space in the object file.
  
   -- Macro: ASM_OUTPUT_LOCAL (STREAM, NAME, SIZE, ROUNDED)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM the assembler definition of a local-common-label named NAME
!      whose size is SIZE bytes.  The variable ROUNDED is the size
!      rounded up to whatever alignment the caller wants.
  
!      Use the expression `assemble_name (STREAM, NAME)' to output the
!      name itself; before and after that, output the additional
!      assembler syntax for defining the name, and a newline.
  
       This macro controls how the assembler definitions of uninitialized
       static variables are output.
  
   -- Macro: ASM_OUTPUT_ALIGNED_LOCAL (STREAM, NAME, SIZE, ALIGNMENT)
!      Like `ASM_OUTPUT_LOCAL' except takes the required alignment as a
       separate, explicit argument.  If you define this macro, it is used
!      in place of `ASM_OUTPUT_LOCAL', and gives you more flexibility in
       handling the required alignment of the variable.  The alignment is
       specified as the number of bits.
  
   -- Macro: ASM_OUTPUT_ALIGNED_DECL_LOCAL (STREAM, DECL, NAME, SIZE,
            ALIGNMENT)
!      Like `ASM_OUTPUT_ALIGNED_DECL' except that DECL of the variable to
!      be output, if there is one, or `NULL_TREE' if there is no
       corresponding variable.  If you define this macro, GCC will use it
!      in place of both `ASM_OUTPUT_DECL' and `ASM_OUTPUT_ALIGNED_DECL'.
!      Define this macro when you need to see the variable's decl in
!      order to chose what to output.
  
  
  File: gccint.info,  Node: Label Output,  Next: Initialization,  Prev: Uninitialized Data,  Up: Assembler Format
--- 35087,35167 ----
       the concept of a zero-sized common symbol, as that is how they
       represent an ordinary undefined external.
  
!      Use the expression 'assemble_name (STREAM, NAME)' to output the
!      name itself; before and after that, output the additional assembler
!      syntax for defining the name, and a newline.
  
       This macro controls how the assembler definitions of uninitialized
       common global variables are output.
  
   -- Macro: ASM_OUTPUT_ALIGNED_COMMON (STREAM, NAME, SIZE, ALIGNMENT)
!      Like 'ASM_OUTPUT_COMMON' except takes the required alignment as a
       separate, explicit argument.  If you define this macro, it is used
!      in place of 'ASM_OUTPUT_COMMON', and gives you more flexibility in
       handling the required alignment of the variable.  The alignment is
       specified as the number of bits.
  
   -- Macro: ASM_OUTPUT_ALIGNED_DECL_COMMON (STREAM, DECL, NAME, SIZE,
            ALIGNMENT)
!      Like 'ASM_OUTPUT_ALIGNED_COMMON' except that DECL of the variable
!      to be output, if there is one, or 'NULL_TREE' if there is no
       corresponding variable.  If you define this macro, GCC will use it
!      in place of both 'ASM_OUTPUT_COMMON' and
!      'ASM_OUTPUT_ALIGNED_COMMON'.  Define this macro when you need to
       see the variable's decl in order to chose what to output.
  
   -- Macro: ASM_OUTPUT_ALIGNED_BSS (STREAM, DECL, NAME, SIZE, ALIGNMENT)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      the assembler definition of uninitialized global DECL named NAME
!      whose size is SIZE bytes.  The variable ALIGNMENT is the alignment
!      specified as the number of bits.
  
!      Try to use function 'asm_output_aligned_bss' defined in file
!      'varasm.c' when defining this macro.  If unable, use the expression
!      'assemble_name (STREAM, NAME)' to output the name itself; before
       and after that, output the additional assembler syntax for defining
       the name, and a newline.
  
       There are two ways of handling global BSS.  One is to define this
!      macro.  The other is to have 'TARGET_ASM_SELECT_SECTION' return a
       switchable BSS section (*note
       TARGET_HAVE_SWITCHABLE_BSS_SECTIONS::).  You do not need to do
       both.
  
!      Some languages do not have 'common' data, and require a non-common
       form of global BSS in order to handle uninitialized globals
       efficiently.  C++ is one example of this.  However, if the target
       does not support global BSS, the front end may choose to make
       globals common in order to save space in the object file.
  
   -- Macro: ASM_OUTPUT_LOCAL (STREAM, NAME, SIZE, ROUNDED)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      the assembler definition of a local-common-label named NAME whose
!      size is SIZE bytes.  The variable ROUNDED is the size rounded up to
!      whatever alignment the caller wants.
  
!      Use the expression 'assemble_name (STREAM, NAME)' to output the
!      name itself; before and after that, output the additional assembler
!      syntax for defining the name, and a newline.
  
       This macro controls how the assembler definitions of uninitialized
       static variables are output.
  
   -- Macro: ASM_OUTPUT_ALIGNED_LOCAL (STREAM, NAME, SIZE, ALIGNMENT)
!      Like 'ASM_OUTPUT_LOCAL' except takes the required alignment as a
       separate, explicit argument.  If you define this macro, it is used
!      in place of 'ASM_OUTPUT_LOCAL', and gives you more flexibility in
       handling the required alignment of the variable.  The alignment is
       specified as the number of bits.
  
   -- Macro: ASM_OUTPUT_ALIGNED_DECL_LOCAL (STREAM, DECL, NAME, SIZE,
            ALIGNMENT)
!      Like 'ASM_OUTPUT_ALIGNED_DECL' except that DECL of the variable to
!      be output, if there is one, or 'NULL_TREE' if there is no
       corresponding variable.  If you define this macro, GCC will use it
!      in place of both 'ASM_OUTPUT_DECL' and 'ASM_OUTPUT_ALIGNED_DECL'.
!      Define this macro when you need to see the variable's decl in order
!      to chose what to output.
  
  
  File: gccint.info,  Node: Label Output,  Next: Initialization,  Prev: Uninitialized Data,  Up: Assembler Format
*************** File: gccint.info,  Node: Label Output,
*** 35595,35880 ****
  This is about outputting labels.
  
   -- Macro: ASM_OUTPUT_LABEL (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM the assembler definition of a label named NAME.  Use the
!      expression `assemble_name (STREAM, NAME)' to output the name
       itself; before and after that, output the additional assembler
       syntax for defining the name, and a newline.  A default definition
       of this macro is provided which is correct for most systems.
  
-  -- Macro: ASM_OUTPUT_FUNCTION_LABEL (STREAM, NAME, DECL)
-      A C statement (sans semicolon) to output to the stdio stream
-      STREAM the assembler definition of a label named NAME of a
-      function.  Use the expression `assemble_name (STREAM, NAME)' to
-      output the name itself; before and after that, output the
-      additional assembler syntax for defining the name, and a newline.
-      A default definition of this macro is provided which is correct
-      for most systems.
- 
       If this macro is not defined, then the function name is defined in
!      the usual manner as a label (by means of `ASM_OUTPUT_LABEL').
  
   -- Macro: ASM_OUTPUT_INTERNAL_LABEL (STREAM, NAME)
!      Identical to `ASM_OUTPUT_LABEL', except that NAME is known to
!      refer to a compiler-generated label.  The default definition uses
!      `assemble_name_raw', which is like `assemble_name' except that it
       is more efficient.
  
   -- Macro: SIZE_ASM_OP
       A C string containing the appropriate assembler directive to
       specify the size of a symbol, without any arguments.  On systems
!      that use ELF, the default (in `config/elfos.h') is `"\t.size\t"';
       on other systems, the default is not to define this macro.
  
       Define this macro only if it is correct to use the default
!      definitions of `ASM_OUTPUT_SIZE_DIRECTIVE' and
!      `ASM_OUTPUT_MEASURED_SIZE' for your system.  If you need your own
       custom definitions of those macros, or if you do not need explicit
       symbol sizes at all, do not define this macro.
  
   -- Macro: ASM_OUTPUT_SIZE_DIRECTIVE (STREAM, NAME, SIZE)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM a directive telling the assembler that the size of the
!      symbol NAME is SIZE.  SIZE is a `HOST_WIDE_INT'.  If you define
!      `SIZE_ASM_OP', a default definition of this macro is provided.
  
   -- Macro: ASM_OUTPUT_MEASURED_SIZE (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM a directive telling the assembler to calculate the size of
!      the symbol NAME by subtracting its address from the current
!      address.
  
!      If you define `SIZE_ASM_OP', a default definition of this macro is
       provided.  The default assumes that the assembler recognizes a
!      special `.' symbol as referring to the current address, and can
       calculate the difference between this and another symbol.  If your
!      assembler does not recognize `.' or cannot do calculations with
!      it, you will need to redefine `ASM_OUTPUT_MEASURED_SIZE' to use
!      some other technique.
  
   -- Macro: NO_DOLLAR_IN_LABEL
       Define this macro if the assembler does not accept the character
!      `$' in label names.  By default constructors and destructors in
!      G++ have `$' in the identifiers.  If this macro is defined, `.' is
!      used instead.
  
   -- Macro: NO_DOT_IN_LABEL
       Define this macro if the assembler does not accept the character
!      `.' in label names.  By default constructors and destructors in G++
!      have names that use `.'.  If this macro is defined, these names
!      are rewritten to avoid `.'.
  
   -- Macro: TYPE_ASM_OP
       A C string containing the appropriate assembler directive to
       specify the type of a symbol, without any arguments.  On systems
!      that use ELF, the default (in `config/elfos.h') is `"\t.type\t"';
       on other systems, the default is not to define this macro.
  
       Define this macro only if it is correct to use the default
!      definition of `ASM_OUTPUT_TYPE_DIRECTIVE' for your system.  If you
       need your own custom definition of this macro, or if you do not
       need explicit symbol types at all, do not define this macro.
  
   -- Macro: TYPE_OPERAND_FMT
!      A C string which specifies (using `printf' syntax) the format of
!      the second operand to `TYPE_ASM_OP'.  On systems that use ELF, the
!      default (in `config/elfos.h') is `"@%s"'; on other systems, the
       default is not to define this macro.
  
       Define this macro only if it is correct to use the default
!      definition of `ASM_OUTPUT_TYPE_DIRECTIVE' for your system.  If you
       need your own custom definition of this macro, or if you do not
       need explicit symbol types at all, do not define this macro.
  
   -- Macro: ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, TYPE)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM a directive telling the assembler that the type of the
!      symbol NAME is TYPE.  TYPE is a C string; currently, that string
!      is always either `"function"' or `"object"', but you should not
!      count on this.
  
!      If you define `TYPE_ASM_OP' and `TYPE_OPERAND_FMT', a default
       definition of this macro is provided.
  
   -- Macro: ASM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for declaring the name NAME of a
!      function which is being defined.  This macro is responsible for
!      outputting the label definition (perhaps using
!      `ASM_OUTPUT_FUNCTION_LABEL').  The argument DECL is the
!      `FUNCTION_DECL' tree node representing the function.
  
       If this macro is not defined, then the function name is defined in
       the usual manner as a label (by means of
!      `ASM_OUTPUT_FUNCTION_LABEL').
  
!      You may wish to use `ASM_OUTPUT_TYPE_DIRECTIVE' in the definition
       of this macro.
  
   -- Macro: ASM_DECLARE_FUNCTION_SIZE (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for declaring the size of a function
!      which is being defined.  The argument NAME is the name of the
!      function.  The argument DECL is the `FUNCTION_DECL' tree node
!      representing the function.
  
       If this macro is not defined, then the function size is not
       defined.
  
!      You may wish to use `ASM_OUTPUT_MEASURED_SIZE' in the definition
!      of this macro.
  
   -- Macro: ASM_DECLARE_COLD_FUNCTION_NAME (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for declaring the name NAME of a cold
!      function partition which is being defined.  This macro is
!      responsible for outputting the label definition (perhaps using
!      `ASM_OUTPUT_FUNCTION_LABEL').  The argument DECL is the
!      `FUNCTION_DECL' tree node representing the function.
  
       If this macro is not defined, then the cold partition name is
       defined in the usual manner as a label (by means of
!      `ASM_OUTPUT_LABEL').
  
!      You may wish to use `ASM_OUTPUT_TYPE_DIRECTIVE' in the definition
       of this macro.
  
   -- Macro: ASM_DECLARE_COLD_FUNCTION_SIZE (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for declaring the size of a cold function
!      partition which is being defined.  The argument NAME is the name
!      of the cold partition of the function.  The argument DECL is the
!      `FUNCTION_DECL' tree node representing the function.
  
       If this macro is not defined, then the partition size is not
       defined.
  
!      You may wish to use `ASM_OUTPUT_MEASURED_SIZE' in the definition
!      of this macro.
  
   -- Macro: ASM_DECLARE_OBJECT_NAME (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for declaring the name NAME of an
!      initialized variable which is being defined.  This macro must
!      output the label definition (perhaps using `ASM_OUTPUT_LABEL').
!      The argument DECL is the `VAR_DECL' tree node representing the
!      variable.
  
       If this macro is not defined, then the variable name is defined in
!      the usual manner as a label (by means of `ASM_OUTPUT_LABEL').
  
!      You may wish to use `ASM_OUTPUT_TYPE_DIRECTIVE' and/or
!      `ASM_OUTPUT_SIZE_DIRECTIVE' in the definition of this macro.
  
   -- Target Hook: void TARGET_ASM_DECLARE_CONSTANT_NAME (FILE *FILE,
            const char *NAME, const_tree EXPR, HOST_WIDE_INT SIZE)
       A target hook to output to the stdio stream FILE any text necessary
       for declaring the name NAME of a constant which is being defined.
!      This target hook is responsible for outputting the label
!      definition (perhaps using `assemble_label').  The argument EXP is
!      the value of the constant, and SIZE is the size of the constant in
!      bytes.  The NAME will be an internal label.
  
       The default version of this target hook, define the NAME in the
!      usual manner as a label (by means of `assemble_label').
  
!      You may wish to use `ASM_OUTPUT_TYPE_DIRECTIVE' in this target
       hook.
  
   -- Macro: ASM_DECLARE_REGISTER_GLOBAL (STREAM, DECL, REGNO, NAME)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for claiming a register REGNO for a
!      global variable DECL with name NAME.
  
       If you don't define this macro, that is equivalent to defining it
       to do nothing.
  
   -- Macro: ASM_FINISH_DECLARE_OBJECT (STREAM, DECL, TOPLEVEL, ATEND)
       A C statement (sans semicolon) to finish up declaring a variable
!      name once the compiler has processed its initializer fully and
!      thus has had a chance to determine the size of an array when
!      controlled by an initializer.  This is used on systems where it's
!      necessary to declare something about the size of the object.
  
       If you don't define this macro, that is equivalent to defining it
       to do nothing.
  
!      You may wish to use `ASM_OUTPUT_SIZE_DIRECTIVE' and/or
!      `ASM_OUTPUT_MEASURED_SIZE' in the definition of this macro.
  
   -- Target Hook: void TARGET_ASM_GLOBALIZE_LABEL (FILE *STREAM, const
            char *NAME)
!      This target hook is a function to output to the stdio stream
!      STREAM some commands that will make the label NAME global; that
!      is, available for reference from other files.
  
       The default implementation relies on a proper definition of
!      `GLOBAL_ASM_OP'.
  
!  -- Target Hook: void TARGET_ASM_GLOBALIZE_DECL_NAME (FILE *STREAM,
!           tree DECL)
!      This target hook is a function to output to the stdio stream
!      STREAM some commands that will make the name associated with DECL
!      global; that is, available for reference from other files.
  
       The default implementation uses the TARGET_ASM_GLOBALIZE_LABEL
       target hook.
  
   -- Target Hook: void TARGET_ASM_ASSEMBLE_UNDEFINED_DECL (FILE *STREAM,
            const char *NAME, const_tree DECL)
!      This target hook is a function to output to the stdio stream
!      STREAM some commands that will declare the name associated with
!      DECL which is not defined in the current translation unit.  Most
!      assemblers do not require anything to be output in this case.
  
   -- Macro: ASM_WEAKEN_LABEL (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM some commands that will make the label NAME weak; that is,
       available for reference from other files but only used if no other
!      definition is available.  Use the expression `assemble_name
       (STREAM, NAME)' to output the name itself; before and after that,
       output the additional assembler syntax for making that name weak,
       and a newline.
  
!      If you don't define this macro or `ASM_WEAKEN_DECL', GCC will not
!      support weak symbols and you should not define the `SUPPORTS_WEAK'
       macro.
  
   -- Macro: ASM_WEAKEN_DECL (STREAM, DECL, NAME, VALUE)
!      Combines (and replaces) the function of `ASM_WEAKEN_LABEL' and
!      `ASM_OUTPUT_WEAK_ALIAS', allowing access to the associated function
!      or variable decl.  If VALUE is not `NULL', this C statement should
       output to the stdio stream STREAM assembler code which defines
       (equates) the weak symbol NAME to have the value VALUE.  If VALUE
!      is `NULL', it should output commands to make NAME weak.
  
   -- Macro: ASM_OUTPUT_WEAKREF (STREAM, DECL, NAME, VALUE)
!      Outputs a directive that enables NAME to be used to refer to
!      symbol VALUE with weak-symbol semantics.  `decl' is the
!      declaration of `name'.
  
   -- Macro: SUPPORTS_WEAK
       A preprocessor constant expression which evaluates to true if the
       target supports weak symbols.
  
!      If you don't define this macro, `defaults.h' provides a default
!      definition.  If either `ASM_WEAKEN_LABEL' or `ASM_WEAKEN_DECL' is
!      defined, the default definition is `1'; otherwise, it is `0'.
  
   -- Macro: TARGET_SUPPORTS_WEAK
       A C expression which evaluates to true if the target supports weak
       symbols.
  
!      If you don't define this macro, `defaults.h' provides a default
!      definition.  The default definition is `(SUPPORTS_WEAK)'.  Define
       this macro if you want to control weak symbol support with a
!      compiler flag such as `-melf'.
  
   -- Macro: MAKE_DECL_ONE_ONLY (DECL)
       A C statement (sans semicolon) to mark DECL to be emitted as a
       public symbol such that extra copies in multiple translation units
       will be discarded by the linker.  Define this macro if your object
!      file format provides support for this concept, such as the `COMDAT'
       section flags in the Microsoft Windows PE/COFF format, and this
       support requires changes to DECL, such as putting it in a separate
       section.
--- 35172,35454 ----
  This is about outputting labels.
  
   -- Macro: ASM_OUTPUT_LABEL (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      the assembler definition of a label named NAME.  Use the expression
!      'assemble_name (STREAM, NAME)' to output the name itself; before
!      and after that, output the additional assembler syntax for defining
!      the name, and a newline.  A default definition of this macro is
!      provided which is correct for most systems.
! 
!  -- Macro: ASM_OUTPUT_FUNCTION_LABEL (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      the assembler definition of a label named NAME of a function.  Use
!      the expression 'assemble_name (STREAM, NAME)' to output the name
       itself; before and after that, output the additional assembler
       syntax for defining the name, and a newline.  A default definition
       of this macro is provided which is correct for most systems.
  
       If this macro is not defined, then the function name is defined in
!      the usual manner as a label (by means of 'ASM_OUTPUT_LABEL').
  
   -- Macro: ASM_OUTPUT_INTERNAL_LABEL (STREAM, NAME)
!      Identical to 'ASM_OUTPUT_LABEL', except that NAME is known to refer
!      to a compiler-generated label.  The default definition uses
!      'assemble_name_raw', which is like 'assemble_name' except that it
       is more efficient.
  
   -- Macro: SIZE_ASM_OP
       A C string containing the appropriate assembler directive to
       specify the size of a symbol, without any arguments.  On systems
!      that use ELF, the default (in 'config/elfos.h') is '"\t.size\t"';
       on other systems, the default is not to define this macro.
  
       Define this macro only if it is correct to use the default
!      definitions of 'ASM_OUTPUT_SIZE_DIRECTIVE' and
!      'ASM_OUTPUT_MEASURED_SIZE' for your system.  If you need your own
       custom definitions of those macros, or if you do not need explicit
       symbol sizes at all, do not define this macro.
  
   -- Macro: ASM_OUTPUT_SIZE_DIRECTIVE (STREAM, NAME, SIZE)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      a directive telling the assembler that the size of the symbol NAME
!      is SIZE.  SIZE is a 'HOST_WIDE_INT'.  If you define 'SIZE_ASM_OP',
!      a default definition of this macro is provided.
  
   -- Macro: ASM_OUTPUT_MEASURED_SIZE (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      a directive telling the assembler to calculate the size of the
!      symbol NAME by subtracting its address from the current address.
  
!      If you define 'SIZE_ASM_OP', a default definition of this macro is
       provided.  The default assumes that the assembler recognizes a
!      special '.' symbol as referring to the current address, and can
       calculate the difference between this and another symbol.  If your
!      assembler does not recognize '.' or cannot do calculations with it,
!      you will need to redefine 'ASM_OUTPUT_MEASURED_SIZE' to use some
!      other technique.
  
   -- Macro: NO_DOLLAR_IN_LABEL
       Define this macro if the assembler does not accept the character
!      '$' in label names.  By default constructors and destructors in G++
!      have '$' in the identifiers.  If this macro is defined, '.' is used
!      instead.
  
   -- Macro: NO_DOT_IN_LABEL
       Define this macro if the assembler does not accept the character
!      '.' in label names.  By default constructors and destructors in G++
!      have names that use '.'.  If this macro is defined, these names are
!      rewritten to avoid '.'.
  
   -- Macro: TYPE_ASM_OP
       A C string containing the appropriate assembler directive to
       specify the type of a symbol, without any arguments.  On systems
!      that use ELF, the default (in 'config/elfos.h') is '"\t.type\t"';
       on other systems, the default is not to define this macro.
  
       Define this macro only if it is correct to use the default
!      definition of 'ASM_OUTPUT_TYPE_DIRECTIVE' for your system.  If you
       need your own custom definition of this macro, or if you do not
       need explicit symbol types at all, do not define this macro.
  
   -- Macro: TYPE_OPERAND_FMT
!      A C string which specifies (using 'printf' syntax) the format of
!      the second operand to 'TYPE_ASM_OP'.  On systems that use ELF, the
!      default (in 'config/elfos.h') is '"@%s"'; on other systems, the
       default is not to define this macro.
  
       Define this macro only if it is correct to use the default
!      definition of 'ASM_OUTPUT_TYPE_DIRECTIVE' for your system.  If you
       need your own custom definition of this macro, or if you do not
       need explicit symbol types at all, do not define this macro.
  
   -- Macro: ASM_OUTPUT_TYPE_DIRECTIVE (STREAM, TYPE)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      a directive telling the assembler that the type of the symbol NAME
!      is TYPE.  TYPE is a C string; currently, that string is always
!      either '"function"' or '"object"', but you should not count on
!      this.
  
!      If you define 'TYPE_ASM_OP' and 'TYPE_OPERAND_FMT', a default
       definition of this macro is provided.
  
   -- Macro: ASM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for declaring the name NAME of a function which
!      is being defined.  This macro is responsible for outputting the
!      label definition (perhaps using 'ASM_OUTPUT_FUNCTION_LABEL').  The
!      argument DECL is the 'FUNCTION_DECL' tree node representing the
!      function.
  
       If this macro is not defined, then the function name is defined in
       the usual manner as a label (by means of
!      'ASM_OUTPUT_FUNCTION_LABEL').
  
!      You may wish to use 'ASM_OUTPUT_TYPE_DIRECTIVE' in the definition
       of this macro.
  
   -- Macro: ASM_DECLARE_FUNCTION_SIZE (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for declaring the size of a function which is
!      being defined.  The argument NAME is the name of the function.  The
!      argument DECL is the 'FUNCTION_DECL' tree node representing the
!      function.
  
       If this macro is not defined, then the function size is not
       defined.
  
!      You may wish to use 'ASM_OUTPUT_MEASURED_SIZE' in the definition of
!      this macro.
  
   -- Macro: ASM_DECLARE_COLD_FUNCTION_NAME (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for declaring the name NAME of a cold function
!      partition which is being defined.  This macro is responsible for
!      outputting the label definition (perhaps using
!      'ASM_OUTPUT_FUNCTION_LABEL').  The argument DECL is the
!      'FUNCTION_DECL' tree node representing the function.
  
       If this macro is not defined, then the cold partition name is
       defined in the usual manner as a label (by means of
!      'ASM_OUTPUT_LABEL').
  
!      You may wish to use 'ASM_OUTPUT_TYPE_DIRECTIVE' in the definition
       of this macro.
  
   -- Macro: ASM_DECLARE_COLD_FUNCTION_SIZE (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for declaring the size of a cold function
!      partition which is being defined.  The argument NAME is the name of
!      the cold partition of the function.  The argument DECL is the
!      'FUNCTION_DECL' tree node representing the function.
  
       If this macro is not defined, then the partition size is not
       defined.
  
!      You may wish to use 'ASM_OUTPUT_MEASURED_SIZE' in the definition of
!      this macro.
  
   -- Macro: ASM_DECLARE_OBJECT_NAME (STREAM, NAME, DECL)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for declaring the name NAME of an initialized
!      variable which is being defined.  This macro must output the label
!      definition (perhaps using 'ASM_OUTPUT_LABEL').  The argument DECL
!      is the 'VAR_DECL' tree node representing the variable.
  
       If this macro is not defined, then the variable name is defined in
!      the usual manner as a label (by means of 'ASM_OUTPUT_LABEL').
  
!      You may wish to use 'ASM_OUTPUT_TYPE_DIRECTIVE' and/or
!      'ASM_OUTPUT_SIZE_DIRECTIVE' in the definition of this macro.
  
   -- Target Hook: void TARGET_ASM_DECLARE_CONSTANT_NAME (FILE *FILE,
            const char *NAME, const_tree EXPR, HOST_WIDE_INT SIZE)
       A target hook to output to the stdio stream FILE any text necessary
       for declaring the name NAME of a constant which is being defined.
!      This target hook is responsible for outputting the label definition
!      (perhaps using 'assemble_label').  The argument EXP is the value of
!      the constant, and SIZE is the size of the constant in bytes.  The
!      NAME will be an internal label.
  
       The default version of this target hook, define the NAME in the
!      usual manner as a label (by means of 'assemble_label').
  
!      You may wish to use 'ASM_OUTPUT_TYPE_DIRECTIVE' in this target
       hook.
  
   -- Macro: ASM_DECLARE_REGISTER_GLOBAL (STREAM, DECL, REGNO, NAME)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for claiming a register REGNO for a global
!      variable DECL with name NAME.
  
       If you don't define this macro, that is equivalent to defining it
       to do nothing.
  
   -- Macro: ASM_FINISH_DECLARE_OBJECT (STREAM, DECL, TOPLEVEL, ATEND)
       A C statement (sans semicolon) to finish up declaring a variable
!      name once the compiler has processed its initializer fully and thus
!      has had a chance to determine the size of an array when controlled
!      by an initializer.  This is used on systems where it's necessary to
!      declare something about the size of the object.
  
       If you don't define this macro, that is equivalent to defining it
       to do nothing.
  
!      You may wish to use 'ASM_OUTPUT_SIZE_DIRECTIVE' and/or
!      'ASM_OUTPUT_MEASURED_SIZE' in the definition of this macro.
  
   -- Target Hook: void TARGET_ASM_GLOBALIZE_LABEL (FILE *STREAM, const
            char *NAME)
!      This target hook is a function to output to the stdio stream STREAM
!      some commands that will make the label NAME global; that is,
!      available for reference from other files.
  
       The default implementation relies on a proper definition of
!      'GLOBAL_ASM_OP'.
  
!  -- Target Hook: void TARGET_ASM_GLOBALIZE_DECL_NAME (FILE *STREAM, tree
!           DECL)
!      This target hook is a function to output to the stdio stream STREAM
!      some commands that will make the name associated with DECL global;
!      that is, available for reference from other files.
  
       The default implementation uses the TARGET_ASM_GLOBALIZE_LABEL
       target hook.
  
   -- Target Hook: void TARGET_ASM_ASSEMBLE_UNDEFINED_DECL (FILE *STREAM,
            const char *NAME, const_tree DECL)
!      This target hook is a function to output to the stdio stream STREAM
!      some commands that will declare the name associated with DECL which
!      is not defined in the current translation unit.  Most assemblers do
!      not require anything to be output in this case.
  
   -- Macro: ASM_WEAKEN_LABEL (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      some commands that will make the label NAME weak; that is,
       available for reference from other files but only used if no other
!      definition is available.  Use the expression 'assemble_name
       (STREAM, NAME)' to output the name itself; before and after that,
       output the additional assembler syntax for making that name weak,
       and a newline.
  
!      If you don't define this macro or 'ASM_WEAKEN_DECL', GCC will not
!      support weak symbols and you should not define the 'SUPPORTS_WEAK'
       macro.
  
   -- Macro: ASM_WEAKEN_DECL (STREAM, DECL, NAME, VALUE)
!      Combines (and replaces) the function of 'ASM_WEAKEN_LABEL' and
!      'ASM_OUTPUT_WEAK_ALIAS', allowing access to the associated function
!      or variable decl.  If VALUE is not 'NULL', this C statement should
       output to the stdio stream STREAM assembler code which defines
       (equates) the weak symbol NAME to have the value VALUE.  If VALUE
!      is 'NULL', it should output commands to make NAME weak.
  
   -- Macro: ASM_OUTPUT_WEAKREF (STREAM, DECL, NAME, VALUE)
!      Outputs a directive that enables NAME to be used to refer to symbol
!      VALUE with weak-symbol semantics.  'decl' is the declaration of
!      'name'.
  
   -- Macro: SUPPORTS_WEAK
       A preprocessor constant expression which evaluates to true if the
       target supports weak symbols.
  
!      If you don't define this macro, 'defaults.h' provides a default
!      definition.  If either 'ASM_WEAKEN_LABEL' or 'ASM_WEAKEN_DECL' is
!      defined, the default definition is '1'; otherwise, it is '0'.
  
   -- Macro: TARGET_SUPPORTS_WEAK
       A C expression which evaluates to true if the target supports weak
       symbols.
  
!      If you don't define this macro, 'defaults.h' provides a default
!      definition.  The default definition is '(SUPPORTS_WEAK)'.  Define
       this macro if you want to control weak symbol support with a
!      compiler flag such as '-melf'.
  
   -- Macro: MAKE_DECL_ONE_ONLY (DECL)
       A C statement (sans semicolon) to mark DECL to be emitted as a
       public symbol such that extra copies in multiple translation units
       will be discarded by the linker.  Define this macro if your object
!      file format provides support for this concept, such as the 'COMDAT'
       section flags in the Microsoft Windows PE/COFF format, and this
       support requires changes to DECL, such as putting it in a separate
       section.
*************** This is about outputting labels.
*** 35883,35893 ****
       A C expression which evaluates to true if the target supports
       one-only semantics.
  
!      If you don't define this macro, `varasm.c' provides a default
!      definition.  If `MAKE_DECL_ONE_ONLY' is defined, the default
!      definition is `1'; otherwise, it is `0'.  Define this macro if you
       want to control one-only symbol support with a compiler flag, or if
!      setting the `DECL_ONE_ONLY' flag is enough to mark a declaration to
       be emitted as one-only.
  
   -- Target Hook: void TARGET_ASM_ASSEMBLE_VISIBILITY (tree DECL, int
--- 35457,35467 ----
       A C expression which evaluates to true if the target supports
       one-only semantics.
  
!      If you don't define this macro, 'varasm.c' provides a default
!      definition.  If 'MAKE_DECL_ONE_ONLY' is defined, the default
!      definition is '1'; otherwise, it is '0'.  Define this macro if you
       want to control one-only symbol support with a compiler flag, or if
!      setting the 'DECL_ONE_ONLY' flag is enough to mark a declaration to
       be emitted as one-only.
  
   -- Target Hook: void TARGET_ASM_ASSEMBLE_VISIBILITY (tree DECL, int
*************** This is about outputting labels.
*** 35899,35936 ****
  
   -- Macro: TARGET_WEAK_NOT_IN_ARCHIVE_TOC
       A C expression that evaluates to true if the target's linker
!      expects that weak symbols do not appear in a static archive's
!      table of contents.  The default is `0'.
  
       Leaving weak symbols out of an archive's table of contents means
       that, if a symbol will only have a definition in one translation
       unit and will have undefined references from other translation
       units, that symbol should not be weak.  Defining this macro to be
       nonzero will thus have the effect that certain symbols that would
!      normally be weak (explicit template instantiations, and vtables
!      for polymorphic classes with noninline key methods) will instead
!      be nonweak.
  
       The C++ ABI requires this macro to be zero.  Define this macro for
       targets where full C++ ABI compliance is impossible and where
!      linker restrictions require weak symbols to be left out of a
!      static archive's table of contents.
  
   -- Macro: ASM_OUTPUT_EXTERNAL (STREAM, DECL, NAME)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM any text necessary for declaring the name of an external
!      symbol named NAME which is referenced in this compilation but not
!      defined.  The value of DECL is the tree node for the declaration.
  
       This macro need not be defined if it does not need to output
!      anything.  The GNU assembler and most Unix assemblers don't
!      require anything.
  
   -- Target Hook: void TARGET_ASM_EXTERNAL_LIBCALL (rtx SYMREF)
       This target hook is a function to output to ASM_OUT_FILE an
       assembler pseudo-op to declare a library function name external.
       The name of the library function is given by SYMREF, which is a
!      `symbol_ref'.
  
   -- Target Hook: void TARGET_ASM_MARK_DECL_PRESERVED (const char
            *SYMBOL)
--- 35473,35510 ----
  
   -- Macro: TARGET_WEAK_NOT_IN_ARCHIVE_TOC
       A C expression that evaluates to true if the target's linker
!      expects that weak symbols do not appear in a static archive's table
!      of contents.  The default is '0'.
  
       Leaving weak symbols out of an archive's table of contents means
       that, if a symbol will only have a definition in one translation
       unit and will have undefined references from other translation
       units, that symbol should not be weak.  Defining this macro to be
       nonzero will thus have the effect that certain symbols that would
!      normally be weak (explicit template instantiations, and vtables for
!      polymorphic classes with noninline key methods) will instead be
!      nonweak.
  
       The C++ ABI requires this macro to be zero.  Define this macro for
       targets where full C++ ABI compliance is impossible and where
!      linker restrictions require weak symbols to be left out of a static
!      archive's table of contents.
  
   -- Macro: ASM_OUTPUT_EXTERNAL (STREAM, DECL, NAME)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      any text necessary for declaring the name of an external symbol
!      named NAME which is referenced in this compilation but not defined.
!      The value of DECL is the tree node for the declaration.
  
       This macro need not be defined if it does not need to output
!      anything.  The GNU assembler and most Unix assemblers don't require
!      anything.
  
   -- Target Hook: void TARGET_ASM_EXTERNAL_LIBCALL (rtx SYMREF)
       This target hook is a function to output to ASM_OUT_FILE an
       assembler pseudo-op to declare a library function name external.
       The name of the library function is given by SYMREF, which is a
!      'symbol_ref'.
  
   -- Target Hook: void TARGET_ASM_MARK_DECL_PRESERVED (const char
            *SYMBOL)
*************** This is about outputting labels.
*** 35939,35973 ****
       uses the .no_dead_code_strip directive.
  
   -- Macro: ASM_OUTPUT_LABELREF (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream
!      STREAM a reference in assembler syntax to a label named NAME.
!      This should add `_' to the front of the name, if that is customary
!      on your operating system, as it is in most Berkeley Unix systems.
!      This macro is used in `assemble_name'.
  
   -- Target Hook: tree TARGET_MANGLE_ASSEMBLER_NAME (const char *NAME)
!      Given a symbol NAME, perform same mangling as `varasm.c''s
!      `assemble_name', but in memory rather than to a file stream,
!      returning result as an `IDENTIFIER_NODE'.  Required for correct
!      LTO symtabs.  The default implementation calls the
!      `TARGET_STRIP_NAME_ENCODING' hook and then prepends the
!      `USER_LABEL_PREFIX', if any.
  
   -- Macro: ASM_OUTPUT_SYMBOL_REF (STREAM, SYM)
       A C statement (sans semicolon) to output a reference to
!      `SYMBOL_REF' SYM.  If not defined, `assemble_name' will be used to
       output the name of the symbol.  This macro may be used to modify
       the way a symbol is referenced depending on information encoded by
!      `TARGET_ENCODE_SECTION_INFO'.
  
   -- Macro: ASM_OUTPUT_LABEL_REF (STREAM, BUF)
       A C statement (sans semicolon) to output a reference to BUF, the
!      result of `ASM_GENERATE_INTERNAL_LABEL'.  If not defined,
!      `assemble_name' will be used to output the name of the symbol.
!      This macro is not used by `output_asm_label', or the `%l'
!      specifier that calls it; the intention is that this macro should
!      be set when it is necessary to output a label differently when its
!      address is being taken.
  
   -- Target Hook: void TARGET_ASM_INTERNAL_LABEL (FILE *STREAM, const
            char *PREFIX, unsigned long LABELNO)
--- 35513,35547 ----
       uses the .no_dead_code_strip directive.
  
   -- Macro: ASM_OUTPUT_LABELREF (STREAM, NAME)
!      A C statement (sans semicolon) to output to the stdio stream STREAM
!      a reference in assembler syntax to a label named NAME.  This should
!      add '_' to the front of the name, if that is customary on your
!      operating system, as it is in most Berkeley Unix systems.  This
!      macro is used in 'assemble_name'.
  
   -- Target Hook: tree TARGET_MANGLE_ASSEMBLER_NAME (const char *NAME)
!      Given a symbol NAME, perform same mangling as 'varasm.c''s
!      'assemble_name', but in memory rather than to a file stream,
!      returning result as an 'IDENTIFIER_NODE'.  Required for correct LTO
!      symtabs.  The default implementation calls the
!      'TARGET_STRIP_NAME_ENCODING' hook and then prepends the
!      'USER_LABEL_PREFIX', if any.
  
   -- Macro: ASM_OUTPUT_SYMBOL_REF (STREAM, SYM)
       A C statement (sans semicolon) to output a reference to
!      'SYMBOL_REF' SYM.  If not defined, 'assemble_name' will be used to
       output the name of the symbol.  This macro may be used to modify
       the way a symbol is referenced depending on information encoded by
!      'TARGET_ENCODE_SECTION_INFO'.
  
   -- Macro: ASM_OUTPUT_LABEL_REF (STREAM, BUF)
       A C statement (sans semicolon) to output a reference to BUF, the
!      result of 'ASM_GENERATE_INTERNAL_LABEL'.  If not defined,
!      'assemble_name' will be used to output the name of the symbol.
!      This macro is not used by 'output_asm_label', or the '%l' specifier
!      that calls it; the intention is that this macro should be set when
!      it is necessary to output a label differently when its address is
!      being taken.
  
   -- Target Hook: void TARGET_ASM_INTERNAL_LABEL (FILE *STREAM, const
            char *PREFIX, unsigned long LABELNO)
*************** This is about outputting labels.
*** 35978,36027 ****
       labels used for user-level functions and variables.  Otherwise,
       certain programs will have name conflicts with internal labels.
  
!      It is desirable to exclude internal labels from the symbol table
!      of the object file.  Most assemblers have a naming convention for
!      labels that should be excluded; on many systems, the letter `L' at
       the beginning of a label has this effect.  You should find out what
       convention your system uses, and follow it.
  
       The default version of this function utilizes
!      `ASM_GENERATE_INTERNAL_LABEL'.
  
   -- Macro: ASM_OUTPUT_DEBUG_LABEL (STREAM, PREFIX, NUM)
       A C statement to output to the stdio stream STREAM a debug info
!      label whose name is made from the string PREFIX and the number
!      NUM.  This is useful for VLIW targets, where debug info labels may
!      need to be treated differently than branch target labels.  On some
       systems, branch target labels must be at the beginning of
       instruction bundles, but debug info labels can occur in the middle
       of instruction bundles.
  
       If this macro is not defined, then
!      `(*targetm.asm_out.internal_label)' will be used.
  
   -- Macro: ASM_GENERATE_INTERNAL_LABEL (STRING, PREFIX, NUM)
!      A C statement to store into the string STRING a label whose name
!      is made from the string PREFIX and the number NUM.
  
!      This string, when output subsequently by `assemble_name', should
!      produce the output that `(*targetm.asm_out.internal_label)' would
       produce with the same PREFIX and NUM.
  
!      If the string begins with `*', then `assemble_name' will output
!      the rest of the string unchanged.  It is often convenient for
!      `ASM_GENERATE_INTERNAL_LABEL' to use `*' in this way.  If the
!      string doesn't start with `*', then `ASM_OUTPUT_LABELREF' gets to
       output the string, and may change it.  (Of course,
!      `ASM_OUTPUT_LABELREF' is also part of your machine description, so
       you should know what it does on your machine.)
  
   -- Macro: ASM_FORMAT_PRIVATE_NAME (OUTVAR, NAME, NUMBER)
       A C expression to assign to OUTVAR (which is a variable of type
!      `char *') a newly allocated string made from the string NAME and
       the number NUMBER, with some suitable punctuation added.  Use
!      `alloca' to get space for the string.
  
!      The string will be used as an argument to `ASM_OUTPUT_LABELREF' to
       produce an assembler label for an internal static variable whose
       name is NAME.  Therefore, the string must be such as to result in
       valid assembler code.  The argument NUMBER is different each time
--- 35552,35601 ----
       labels used for user-level functions and variables.  Otherwise,
       certain programs will have name conflicts with internal labels.
  
!      It is desirable to exclude internal labels from the symbol table of
!      the object file.  Most assemblers have a naming convention for
!      labels that should be excluded; on many systems, the letter 'L' at
       the beginning of a label has this effect.  You should find out what
       convention your system uses, and follow it.
  
       The default version of this function utilizes
!      'ASM_GENERATE_INTERNAL_LABEL'.
  
   -- Macro: ASM_OUTPUT_DEBUG_LABEL (STREAM, PREFIX, NUM)
       A C statement to output to the stdio stream STREAM a debug info
!      label whose name is made from the string PREFIX and the number NUM.
!      This is useful for VLIW targets, where debug info labels may need
!      to be treated differently than branch target labels.  On some
       systems, branch target labels must be at the beginning of
       instruction bundles, but debug info labels can occur in the middle
       of instruction bundles.
  
       If this macro is not defined, then
!      '(*targetm.asm_out.internal_label)' will be used.
  
   -- Macro: ASM_GENERATE_INTERNAL_LABEL (STRING, PREFIX, NUM)
!      A C statement to store into the string STRING a label whose name is
!      made from the string PREFIX and the number NUM.
  
!      This string, when output subsequently by 'assemble_name', should
!      produce the output that '(*targetm.asm_out.internal_label)' would
       produce with the same PREFIX and NUM.
  
!      If the string begins with '*', then 'assemble_name' will output the
!      rest of the string unchanged.  It is often convenient for
!      'ASM_GENERATE_INTERNAL_LABEL' to use '*' in this way.  If the
!      string doesn't start with '*', then 'ASM_OUTPUT_LABELREF' gets to
       output the string, and may change it.  (Of course,
!      'ASM_OUTPUT_LABELREF' is also part of your machine description, so
       you should know what it does on your machine.)
  
   -- Macro: ASM_FORMAT_PRIVATE_NAME (OUTVAR, NAME, NUMBER)
       A C expression to assign to OUTVAR (which is a variable of type
!      'char *') a newly allocated string made from the string NAME and
       the number NUMBER, with some suitable punctuation added.  Use
!      'alloca' to get space for the string.
  
!      The string will be used as an argument to 'ASM_OUTPUT_LABELREF' to
       produce an assembler label for an internal static variable whose
       name is NAME.  Therefore, the string must be such as to result in
       valid assembler code.  The argument NUMBER is different each time
*************** This is about outputting labels.
*** 36030,36037 ****
  
       Ideally this string should not be a valid C identifier, to prevent
       any conflict with the user's own symbols.  Most assemblers allow
!      periods or percent signs in assembler symbols; putting at least
!      one of these between the name and the number will suffice.
  
       If this macro is not defined, a default definition will be provided
       which is correct for most systems.
--- 35604,35611 ----
  
       Ideally this string should not be a valid C identifier, to prevent
       any conflict with the user's own symbols.  Most assemblers allow
!      periods or percent signs in assembler symbols; putting at least one
!      of these between the name and the number will suffice.
  
       If this macro is not defined, a default definition will be provided
       which is correct for most systems.
*************** This is about outputting labels.
*** 36040,36046 ****
       A C statement to output to the stdio stream STREAM assembler code
       which defines (equates) the symbol NAME to have the value VALUE.
  
!      If `SET_ASM_OP' is defined, a default definition is provided which
       is correct for most systems.
  
   -- Macro: ASM_OUTPUT_DEF_FROM_DECLS (STREAM, DECL_OF_NAME,
--- 35614,35620 ----
       A C statement to output to the stdio stream STREAM assembler code
       which defines (equates) the symbol NAME to have the value VALUE.
  
!      If 'SET_ASM_OP' is defined, a default definition is provided which
       is correct for most systems.
  
   -- Macro: ASM_OUTPUT_DEF_FROM_DECLS (STREAM, DECL_OF_NAME,
*************** This is about outputting labels.
*** 36048,36057 ****
       A C statement to output to the stdio stream STREAM assembler code
       which defines (equates) the symbol whose tree node is DECL_OF_NAME
       to have the value of the tree node DECL_OF_VALUE.  This macro will
!      be used in preference to `ASM_OUTPUT_DEF' if it is defined and if
       the tree nodes are available.
  
!      If `SET_ASM_OP' is defined, a default definition is provided which
       is correct for most systems.
  
   -- Macro: TARGET_DEFERRED_OUTPUT_DEFS (DECL_OF_NAME, DECL_OF_VALUE)
--- 35622,35631 ----
       A C statement to output to the stdio stream STREAM assembler code
       which defines (equates) the symbol whose tree node is DECL_OF_NAME
       to have the value of the tree node DECL_OF_VALUE.  This macro will
!      be used in preference to 'ASM_OUTPUT_DEF' if it is defined and if
       the tree nodes are available.
  
!      If 'SET_ASM_OP' is defined, a default definition is provided which
       is correct for most systems.
  
   -- Macro: TARGET_DEFERRED_OUTPUT_DEFS (DECL_OF_NAME, DECL_OF_VALUE)
*************** This is about outputting labels.
*** 36060,36075 ****
       have the value of the tree node DECL_OF_VALUE should be emitted
       near the end of the current compilation unit.  The default is to
       not defer output of defines.  This macro affects defines output by
!      `ASM_OUTPUT_DEF' and `ASM_OUTPUT_DEF_FROM_DECLS'.
  
   -- Macro: ASM_OUTPUT_WEAK_ALIAS (STREAM, NAME, VALUE)
       A C statement to output to the stdio stream STREAM assembler code
       which defines (equates) the weak symbol NAME to have the value
!      VALUE.  If VALUE is `NULL', it defines NAME as an undefined weak
       symbol.
  
       Define this macro if the target only supports weak aliases; define
!      `ASM_OUTPUT_DEF' instead if possible.
  
   -- Macro: OBJC_GEN_METHOD_LABEL (BUF, IS_INST, CLASS_NAME, CAT_NAME,
            SEL_NAME)
--- 35634,35649 ----
       have the value of the tree node DECL_OF_VALUE should be emitted
       near the end of the current compilation unit.  The default is to
       not defer output of defines.  This macro affects defines output by
!      'ASM_OUTPUT_DEF' and 'ASM_OUTPUT_DEF_FROM_DECLS'.
  
   -- Macro: ASM_OUTPUT_WEAK_ALIAS (STREAM, NAME, VALUE)
       A C statement to output to the stdio stream STREAM assembler code
       which defines (equates) the weak symbol NAME to have the value
!      VALUE.  If VALUE is 'NULL', it defines NAME as an undefined weak
       symbol.
  
       Define this macro if the target only supports weak aliases; define
!      'ASM_OUTPUT_DEF' instead if possible.
  
   -- Macro: OBJC_GEN_METHOD_LABEL (BUF, IS_INST, CLASS_NAME, CAT_NAME,
            SEL_NAME)
*************** This is about outputting labels.
*** 36077,36101 ****
       Objective-C methods.
  
       The default name is a unique method number followed by the name of
!      the class (e.g. `_1_Foo').  For methods in categories, the name of
       the category is also included in the assembler name (e.g.
!      `_1_Foo_Bar').
  
       These names are safe on most systems, but make debugging difficult
!      since the method's selector is not present in the name.
!      Therefore, particular systems define other ways of computing names.
  
!      BUF is an expression of type `char *' which gives you a buffer in
       which to store the name; its length is as long as CLASS_NAME,
       CAT_NAME and SEL_NAME put together, plus 50 characters extra.
  
       The argument IS_INST specifies whether the method is an instance
       method or a class method; CLASS_NAME is the name of the class;
!      CAT_NAME is the name of the category (or `NULL' if the method is
       not in a category); and SEL_NAME is the name of the selector.
  
!      On systems where the assembler can handle quoted names, you can
!      use this macro to provide more human-readable names.
  
  
  File: gccint.info,  Node: Initialization,  Next: Macros for Initialization,  Prev: Label Output,  Up: Assembler Format
--- 35651,35675 ----
       Objective-C methods.
  
       The default name is a unique method number followed by the name of
!      the class (e.g. '_1_Foo').  For methods in categories, the name of
       the category is also included in the assembler name (e.g.
!      '_1_Foo_Bar').
  
       These names are safe on most systems, but make debugging difficult
!      since the method's selector is not present in the name.  Therefore,
!      particular systems define other ways of computing names.
  
!      BUF is an expression of type 'char *' which gives you a buffer in
       which to store the name; its length is as long as CLASS_NAME,
       CAT_NAME and SEL_NAME put together, plus 50 characters extra.
  
       The argument IS_INST specifies whether the method is an instance
       method or a class method; CLASS_NAME is the name of the class;
!      CAT_NAME is the name of the category (or 'NULL' if the method is
       not in a category); and SEL_NAME is the name of the selector.
  
!      On systems where the assembler can handle quoted names, you can use
!      this macro to provide more human-readable names.
  
  
  File: gccint.info,  Node: Initialization,  Next: Macros for Initialization,  Prev: Label Output,  Up: Assembler Format
*************** File: gccint.info,  Node: Initialization
*** 36106,36112 ****
  The compiled code for certain languages includes "constructors" (also
  called "initialization routines")--functions to initialize data in the
  program when the program is started.  These functions need to be called
! before the program is "started"--that is to say, before `main' is
  called.
  
   Compiling some languages generates "destructors" (also called
--- 35680,35686 ----
  The compiled code for certain languages includes "constructors" (also
  called "initialization routines")--functions to initialize data in the
  program when the program is started.  These functions need to be called
! before the program is "started"--that is to say, before 'main' is
  called.
  
   Compiling some languages generates "destructors" (also called
*************** initialization and termination functions
*** 36123,36130 ****
  Much of the structure is common to all four variations.
  
   The linker must build two lists of these functions--a list of
! initialization functions, called `__CTOR_LIST__', and a list of
! termination functions, called `__DTOR_LIST__'.
  
   Each list always begins with an ignored function pointer (which may
  hold 0, -1, or a count of the function pointers after it, depending on
--- 35697,35704 ----
  Much of the structure is common to all four variations.
  
   The linker must build two lists of these functions--a list of
! initialization functions, called '__CTOR_LIST__', and a list of
! termination functions, called '__DTOR_LIST__'.
  
   Each list always begins with an ignored function pointer (which may
  hold 0, -1, or a count of the function pointers after it, depending on
*************** pointers to constructors (or destructors
*** 36133,36213 ****
  pointer containing zero.
  
   Depending on the operating system and its executable file format,
! either `crtstuff.c' or `libgcc2.c' traverses these lists at startup
! time and exit time.  Constructors are called in reverse order of the
! list; destructors in forward order.
  
   The best way to handle static constructors works only for object file
  formats which provide arbitrarily-named sections.  A section is set
  aside for a list of constructors, and another for a list of destructors.
! Traditionally these are called `.ctors' and `.dtors'.  Each object file
  that defines an initialization function also puts a word in the
  constructor section to point to that function.  The linker accumulates
! all these words into one contiguous `.ctors' section.  Termination
  functions are handled similarly.
  
!  This method will be chosen as the default by `target-def.h' if
! `TARGET_ASM_NAMED_SECTION' is defined.  A target that does not support
  arbitrary sections, but does support special designated constructor and
! destructor sections may define `CTORS_SECTION_ASM_OP' and
! `DTORS_SECTION_ASM_OP' to achieve the same effect.
  
   When arbitrary sections are available, there are two variants,
! depending upon how the code in `crtstuff.c' is called.  On systems that
! support a ".init" section which is executed at program startup, parts
! of `crtstuff.c' are compiled into that section.  The program is linked
! by the `gcc' driver like this:
  
       ld -o OUTPUT_FILE crti.o crtbegin.o ... -lgcc crtend.o crtn.o
  
!  The prologue of a function (`__init') appears in the `.init' section
! of `crti.o'; the epilogue appears in `crtn.o'.  Likewise for the
! function `__fini' in the ".fini" section.  Normally these files are
! provided by the operating system or by the GNU C library, but are
! provided by GCC for a few targets.
  
!  The objects `crtbegin.o' and `crtend.o' are (for most targets)
! compiled from `crtstuff.c'.  They contain, among other things, code
! fragments within the `.init' and `.fini' sections that branch to
! routines in the `.text' section.  The linker will pull all parts of a
! section together, which results in a complete `__init' function that
! invokes the routines we need at startup.
  
!  To use this variant, you must define the `INIT_SECTION_ASM_OP' macro
  properly.
  
   If no init section is available, when GCC compiles any function called
! `main' (or more accurately, any function designated as a program entry
! point by the language front end calling `expand_main_function'), it
! inserts a procedure call to `__main' as the first executable code after
! the function prologue.  The `__main' function is defined in `libgcc2.c'
  and runs the global constructors.
  
   In file formats that don't support arbitrary sections, there are again
! two variants.  In the simplest variant, the GNU linker (GNU `ld') and
! an `a.out' format must be used.  In this case, `TARGET_ASM_CONSTRUCTOR'
! is defined to produce a `.stabs' entry of type `N_SETT', referencing
! the name `__CTOR_LIST__', and with the address of the void function
  containing the initialization code as its value.  The GNU linker
! recognizes this as a request to add the value to a "set"; the values
! are accumulated, and are eventually placed in the executable as a
! vector in the format described above, with a leading (ignored) count
! and a trailing zero element.  `TARGET_ASM_DESTRUCTOR' is handled
! similarly.  Since no init section is available, the absence of
! `INIT_SECTION_ASM_OP' causes the compilation of `main' to call `__main'
! as above, starting the initialization process.
  
   The last variant uses neither arbitrary sections nor the GNU linker.
  This is preferable when you want to do dynamic linking and when using
! file formats which the GNU linker does not support, such as `ECOFF'.  In
! this case, `TARGET_HAVE_CTORS_DTORS' is false, initialization and
  termination functions are recognized simply by their names.  This
! requires an extra program in the linkage step, called `collect2'.  This
  program pretends to be the linker, for use with GCC; it does its job by
  running the ordinary linker, but also arranges to include the vectors of
  initialization and termination functions.  These functions are called
! via `__main' as described above.  In order to use this method,
! `use_collect2' must be defined in the target in `config.gcc'.
  
   The following section describes the specific macros that control and
  customize the handling of initialization and termination functions.
--- 35707,35787 ----
  pointer containing zero.
  
   Depending on the operating system and its executable file format,
! either 'crtstuff.c' or 'libgcc2.c' traverses these lists at startup time
! and exit time.  Constructors are called in reverse order of the list;
! destructors in forward order.
  
   The best way to handle static constructors works only for object file
  formats which provide arbitrarily-named sections.  A section is set
  aside for a list of constructors, and another for a list of destructors.
! Traditionally these are called '.ctors' and '.dtors'.  Each object file
  that defines an initialization function also puts a word in the
  constructor section to point to that function.  The linker accumulates
! all these words into one contiguous '.ctors' section.  Termination
  functions are handled similarly.
  
!  This method will be chosen as the default by 'target-def.h' if
! 'TARGET_ASM_NAMED_SECTION' is defined.  A target that does not support
  arbitrary sections, but does support special designated constructor and
! destructor sections may define 'CTORS_SECTION_ASM_OP' and
! 'DTORS_SECTION_ASM_OP' to achieve the same effect.
  
   When arbitrary sections are available, there are two variants,
! depending upon how the code in 'crtstuff.c' is called.  On systems that
! support a ".init" section which is executed at program startup, parts of
! 'crtstuff.c' are compiled into that section.  The program is linked by
! the 'gcc' driver like this:
  
       ld -o OUTPUT_FILE crti.o crtbegin.o ... -lgcc crtend.o crtn.o
  
!  The prologue of a function ('__init') appears in the '.init' section of
! 'crti.o'; the epilogue appears in 'crtn.o'.  Likewise for the function
! '__fini' in the ".fini" section.  Normally these files are provided by
! the operating system or by the GNU C library, but are provided by GCC
! for a few targets.
  
!  The objects 'crtbegin.o' and 'crtend.o' are (for most targets) compiled
! from 'crtstuff.c'.  They contain, among other things, code fragments
! within the '.init' and '.fini' sections that branch to routines in the
! '.text' section.  The linker will pull all parts of a section together,
! which results in a complete '__init' function that invokes the routines
! we need at startup.
  
!  To use this variant, you must define the 'INIT_SECTION_ASM_OP' macro
  properly.
  
   If no init section is available, when GCC compiles any function called
! 'main' (or more accurately, any function designated as a program entry
! point by the language front end calling 'expand_main_function'), it
! inserts a procedure call to '__main' as the first executable code after
! the function prologue.  The '__main' function is defined in 'libgcc2.c'
  and runs the global constructors.
  
   In file formats that don't support arbitrary sections, there are again
! two variants.  In the simplest variant, the GNU linker (GNU 'ld') and an
! 'a.out' format must be used.  In this case, 'TARGET_ASM_CONSTRUCTOR' is
! defined to produce a '.stabs' entry of type 'N_SETT', referencing the
! name '__CTOR_LIST__', and with the address of the void function
  containing the initialization code as its value.  The GNU linker
! recognizes this as a request to add the value to a "set"; the values are
! accumulated, and are eventually placed in the executable as a vector in
! the format described above, with a leading (ignored) count and a
! trailing zero element.  'TARGET_ASM_DESTRUCTOR' is handled similarly.
! Since no init section is available, the absence of 'INIT_SECTION_ASM_OP'
! causes the compilation of 'main' to call '__main' as above, starting the
! initialization process.
  
   The last variant uses neither arbitrary sections nor the GNU linker.
  This is preferable when you want to do dynamic linking and when using
! file formats which the GNU linker does not support, such as 'ECOFF'.  In
! this case, 'TARGET_HAVE_CTORS_DTORS' is false, initialization and
  termination functions are recognized simply by their names.  This
! requires an extra program in the linkage step, called 'collect2'.  This
  program pretends to be the linker, for use with GCC; it does its job by
  running the ordinary linker, but also arranges to include the vectors of
  initialization and termination functions.  These functions are called
! via '__main' as described above.  In order to use this method,
! 'use_collect2' must be defined in the target in 'config.gcc'.
  
   The following section describes the specific macros that control and
  customize the handling of initialization and termination functions.
*************** and termination functions:
*** 36227,36240 ****
       initialization code.  If not defined, GCC will assume such a
       section does not exist.  When you are using special sections for
       initialization and termination functions, this macro also controls
!      how `crtstuff.c' and `libgcc2.c' arrange to run the initialization
       functions.
  
   -- Macro: HAS_INIT_SECTION
!      If defined, `main' will not call `__main' as described above.
!      This macro should be defined for systems that control start-up code
!      on a symbol-by-symbol basis, such as OSF/1, and should not be
!      defined explicitly for systems that support `INIT_SECTION_ASM_OP'.
  
   -- Macro: LD_INIT_SWITCH
       If defined, a C string constant for a switch that tells the linker
--- 35801,35814 ----
       initialization code.  If not defined, GCC will assume such a
       section does not exist.  When you are using special sections for
       initialization and termination functions, this macro also controls
!      how 'crtstuff.c' and 'libgcc2.c' arrange to run the initialization
       functions.
  
   -- Macro: HAS_INIT_SECTION
!      If defined, 'main' will not call '__main' as described above.  This
!      macro should be defined for systems that control start-up code on a
!      symbol-by-symbol basis, such as OSF/1, and should not be defined
!      explicitly for systems that support 'INIT_SECTION_ASM_OP'.
  
   -- Macro: LD_INIT_SWITCH
       If defined, a C string constant for a switch that tells the linker
*************** and termination functions:
*** 36249,36332 ****
       automatically called when a shared library is loaded.  The function
       should call FUNC, which takes no arguments.  If not defined, and
       the object format requires an explicit initialization function,
!      then a function called `_GLOBAL__DI' will be generated.
  
       This function and the following one are used by collect2 when
!      linking a shared library that needs constructors or destructors,
!      or has DWARF2 exception tables embedded in the code.
  
   -- Macro: COLLECT_SHARED_FINI_FUNC (STREAM, FUNC)
       If defined, a C statement that will write a function that can be
       automatically called when a shared library is unloaded.  The
       function should call FUNC, which takes no arguments.  If not
       defined, and the object format requires an explicit finalization
!      function, then a function called `_GLOBAL__DD' will be generated.
  
   -- Macro: INVOKE__main
!      If defined, `main' will call `__main' despite the presence of
!      `INIT_SECTION_ASM_OP'.  This macro should be defined for systems
       where the init section is not actually run automatically, but is
       still useful for collecting the lists of constructors and
       destructors.
  
   -- Macro: SUPPORTS_INIT_PRIORITY
!      If nonzero, the C++ `init_priority' attribute is supported and the
       compiler should emit instructions to control the order of
       initialization of objects.  If zero, the compiler will issue an
!      error message upon encountering an `init_priority' attribute.
  
   -- Target Hook: bool TARGET_HAVE_CTORS_DTORS
       This value is true if the target supports some "native" method of
       collecting constructors and destructors to be run at startup and
!      exit.  It is false if we must use `collect2'.
  
   -- Target Hook: void TARGET_ASM_CONSTRUCTOR (rtx SYMBOL, int PRIORITY)
       If defined, a function that outputs assembler code to arrange to
       call the function referenced by SYMBOL at initialization time.
  
!      Assume that SYMBOL is a `SYMBOL_REF' for a function taking no
       arguments and with no return value.  If the target supports
       initialization priorities, PRIORITY is a value between 0 and
!      `MAX_INIT_PRIORITY'; otherwise it must be `DEFAULT_INIT_PRIORITY'.
  
       If this macro is not defined by the target, a suitable default will
       be chosen if (1) the target supports arbitrary section names, (2)
!      the target defines `CTORS_SECTION_ASM_OP', or (3) `USE_COLLECT2'
!      is not defined.
  
   -- Target Hook: void TARGET_ASM_DESTRUCTOR (rtx SYMBOL, int PRIORITY)
!      This is like `TARGET_ASM_CONSTRUCTOR' but used for termination
       functions rather than initialization functions.
  
!  If `TARGET_HAVE_CTORS_DTORS' is true, the initialization routine
  generated for the generated object file will have static linkage.
  
!  If your system uses `collect2' as the means of processing
! constructors, then that program normally uses `nm' to scan an object
! file for constructor functions to be called.
  
   On certain kinds of systems, you can define this macro to make
! `collect2' work faster (and, in some cases, make it work at all):
  
   -- Macro: OBJECT_FORMAT_COFF
       Define this macro if the system uses COFF (Common Object File
!      Format) object files, so that `collect2' can assume this format
!      and scan object files directly for dynamic constructor/destructor
       functions.
  
!      This macro is effective only in a native compiler; `collect2' as
!      part of a cross compiler always uses `nm' for the target machine.
  
   -- Macro: REAL_NM_FILE_NAME
       Define this macro as a C string constant containing the file name
!      to use to execute `nm'.  The default is to search the path
!      normally for `nm'.
  
   -- Macro: NM_FLAGS
!      `collect2' calls `nm' to scan object files for static constructors
!      and destructors and LTO info.  By default, `-n' is passed.  Define
!      `NM_FLAGS' to a C string constant if other options are needed to
!      get the same output format as GNU `nm -n' produces.
  
   If your system supports shared libraries and has a program to list the
  dynamic dependencies of a given library or executable, you can define
--- 35823,35906 ----
       automatically called when a shared library is loaded.  The function
       should call FUNC, which takes no arguments.  If not defined, and
       the object format requires an explicit initialization function,
!      then a function called '_GLOBAL__DI' will be generated.
  
       This function and the following one are used by collect2 when
!      linking a shared library that needs constructors or destructors, or
!      has DWARF2 exception tables embedded in the code.
  
   -- Macro: COLLECT_SHARED_FINI_FUNC (STREAM, FUNC)
       If defined, a C statement that will write a function that can be
       automatically called when a shared library is unloaded.  The
       function should call FUNC, which takes no arguments.  If not
       defined, and the object format requires an explicit finalization
!      function, then a function called '_GLOBAL__DD' will be generated.
  
   -- Macro: INVOKE__main
!      If defined, 'main' will call '__main' despite the presence of
!      'INIT_SECTION_ASM_OP'.  This macro should be defined for systems
       where the init section is not actually run automatically, but is
       still useful for collecting the lists of constructors and
       destructors.
  
   -- Macro: SUPPORTS_INIT_PRIORITY
!      If nonzero, the C++ 'init_priority' attribute is supported and the
       compiler should emit instructions to control the order of
       initialization of objects.  If zero, the compiler will issue an
!      error message upon encountering an 'init_priority' attribute.
  
   -- Target Hook: bool TARGET_HAVE_CTORS_DTORS
       This value is true if the target supports some "native" method of
       collecting constructors and destructors to be run at startup and
!      exit.  It is false if we must use 'collect2'.
  
   -- Target Hook: void TARGET_ASM_CONSTRUCTOR (rtx SYMBOL, int PRIORITY)
       If defined, a function that outputs assembler code to arrange to
       call the function referenced by SYMBOL at initialization time.
  
!      Assume that SYMBOL is a 'SYMBOL_REF' for a function taking no
       arguments and with no return value.  If the target supports
       initialization priorities, PRIORITY is a value between 0 and
!      'MAX_INIT_PRIORITY'; otherwise it must be 'DEFAULT_INIT_PRIORITY'.
  
       If this macro is not defined by the target, a suitable default will
       be chosen if (1) the target supports arbitrary section names, (2)
!      the target defines 'CTORS_SECTION_ASM_OP', or (3) 'USE_COLLECT2' is
!      not defined.
  
   -- Target Hook: void TARGET_ASM_DESTRUCTOR (rtx SYMBOL, int PRIORITY)
!      This is like 'TARGET_ASM_CONSTRUCTOR' but used for termination
       functions rather than initialization functions.
  
!  If 'TARGET_HAVE_CTORS_DTORS' is true, the initialization routine
  generated for the generated object file will have static linkage.
  
!  If your system uses 'collect2' as the means of processing constructors,
! then that program normally uses 'nm' to scan an object file for
! constructor functions to be called.
  
   On certain kinds of systems, you can define this macro to make
! 'collect2' work faster (and, in some cases, make it work at all):
  
   -- Macro: OBJECT_FORMAT_COFF
       Define this macro if the system uses COFF (Common Object File
!      Format) object files, so that 'collect2' can assume this format and
!      scan object files directly for dynamic constructor/destructor
       functions.
  
!      This macro is effective only in a native compiler; 'collect2' as
!      part of a cross compiler always uses 'nm' for the target machine.
  
   -- Macro: REAL_NM_FILE_NAME
       Define this macro as a C string constant containing the file name
!      to use to execute 'nm'.  The default is to search the path normally
!      for 'nm'.
  
   -- Macro: NM_FLAGS
!      'collect2' calls 'nm' to scan object files for static constructors
!      and destructors and LTO info.  By default, '-n' is passed.  Define
!      'NM_FLAGS' to a C string constant if other options are needed to
!      get the same output format as GNU 'nm -n' produces.
  
   If your system supports shared libraries and has a program to list the
  dynamic dependencies of a given library or executable, you can define
*************** these macros to enable support for runni
*** 36334,36357 ****
  termination functions in shared libraries:
  
   -- Macro: LDD_SUFFIX
!      Define this macro to a C string constant containing the name of
!      the program which lists dynamic dependencies, like `ldd' under
!      SunOS 4.
  
   -- Macro: PARSE_LDD_OUTPUT (PTR)
       Define this macro to be C code that extracts filenames from the
!      output of the program denoted by `LDD_SUFFIX'.  PTR is a variable
!      of type `char *' that points to the beginning of a line of output
!      from `LDD_SUFFIX'.  If the line lists a dynamic dependency, the
       code must advance PTR to the beginning of the filename on that
!      line.  Otherwise, it must set PTR to `NULL'.
  
   -- Macro: SHLIB_SUFFIX
       Define this macro to a C string constant containing the default
!      shared library extension of the target (e.g., `".so"').  `collect2'
       strips version information after this suffix when generating global
       constructor and destructor names.  This define is only needed on
!      targets that use `collect2' to process constructors and
       destructors.
  
  
--- 35908,35930 ----
  termination functions in shared libraries:
  
   -- Macro: LDD_SUFFIX
!      Define this macro to a C string constant containing the name of the
!      program which lists dynamic dependencies, like 'ldd' under SunOS 4.
  
   -- Macro: PARSE_LDD_OUTPUT (PTR)
       Define this macro to be C code that extracts filenames from the
!      output of the program denoted by 'LDD_SUFFIX'.  PTR is a variable
!      of type 'char *' that points to the beginning of a line of output
!      from 'LDD_SUFFIX'.  If the line lists a dynamic dependency, the
       code must advance PTR to the beginning of the filename on that
!      line.  Otherwise, it must set PTR to 'NULL'.
  
   -- Macro: SHLIB_SUFFIX
       Define this macro to a C string constant containing the default
!      shared library extension of the target (e.g., '".so"').  'collect2'
       strips version information after this suffix when generating global
       constructor and destructor names.  This define is only needed on
!      targets that use 'collect2' to process constructors and
       destructors.
  
  
*************** This describes assembler instruction out
*** 36369,36390 ****
       language.
  
   -- Macro: ADDITIONAL_REGISTER_NAMES
!      If defined, a C initializer for an array of structures containing
!      a name and a register number.  This macro defines additional names
!      for hard registers, thus allowing the `asm' option in declarations
       to refer to registers using alternate names.
  
   -- Macro: OVERLAPPING_REGISTER_NAMES
       If defined, a C initializer for an array of structures containing a
       name, a register number and a count of the number of consecutive
       machine registers the name overlaps.  This macro defines additional
!      names for hard registers, thus allowing the `asm' option in
       declarations to refer to registers using alternate names.  Unlike
!      `ADDITIONAL_REGISTER_NAMES', this macro should be used when the
       register name implies multiple underlying registers.
  
       This macro should be used when it is important that a clobber in an
!      `asm' statement clobbers all the underlying values implied by the
       register name.  For example, on ARM, clobbering the
       double-precision VFP register "d0" implies clobbering both
       single-precision registers "s0" and "s1".
--- 35942,35963 ----
       language.
  
   -- Macro: ADDITIONAL_REGISTER_NAMES
!      If defined, a C initializer for an array of structures containing a
!      name and a register number.  This macro defines additional names
!      for hard registers, thus allowing the 'asm' option in declarations
       to refer to registers using alternate names.
  
   -- Macro: OVERLAPPING_REGISTER_NAMES
       If defined, a C initializer for an array of structures containing a
       name, a register number and a count of the number of consecutive
       machine registers the name overlaps.  This macro defines additional
!      names for hard registers, thus allowing the 'asm' option in
       declarations to refer to registers using alternate names.  Unlike
!      'ADDITIONAL_REGISTER_NAMES', this macro should be used when the
       register name implies multiple underlying registers.
  
       This macro should be used when it is important that a clobber in an
!      'asm' statement clobbers all the underlying values implied by the
       register name.  For example, on ARM, clobbering the
       double-precision VFP register "d0" implies clobbering both
       single-precision registers "s0" and "s1".
*************** This describes assembler instruction out
*** 36395,36415 ****
  
       The definition is a C statement or statements which output an
       assembler instruction opcode to the stdio stream STREAM.  The
!      macro-operand PTR is a variable of type `char *' which points to
!      the opcode name in its "internal" form--the form that is written
!      in the machine description.  The definition should output the
!      opcode name to STREAM, performing any translation you desire, and
       increment the variable PTR to point at the end of the opcode so
       that it will not be output twice.
  
       In fact, your macro definition may process less than the entire
       opcode name, or more than the opcode name; but if you want to
!      process text that includes `%'-sequences to substitute operands,
       you must take care of the substitution yourself.  Just be sure to
       increment PTR over whatever text should not be output normally.
  
       If you need to look at the operand values, they can be found as the
!      elements of `recog_data.operand'.
  
       If the macro definition does nothing, the instruction is output in
       the usual way.
--- 35968,35988 ----
  
       The definition is a C statement or statements which output an
       assembler instruction opcode to the stdio stream STREAM.  The
!      macro-operand PTR is a variable of type 'char *' which points to
!      the opcode name in its "internal" form--the form that is written in
!      the machine description.  The definition should output the opcode
!      name to STREAM, performing any translation you desire, and
       increment the variable PTR to point at the end of the opcode so
       that it will not be output twice.
  
       In fact, your macro definition may process less than the entire
       opcode name, or more than the opcode name; but if you want to
!      process text that includes '%'-sequences to substitute operands,
       you must take care of the substitution yourself.  Just be sure to
       increment PTR over whatever text should not be output normally.
  
       If you need to look at the operand values, they can be found as the
!      elements of 'recog_data.operand'.
  
       If the macro definition does nothing, the instruction is output in
       the usual way.
*************** This describes assembler instruction out
*** 36420,36438 ****
       they will be output differently.
  
       Here the argument OPVEC is the vector containing the operands
!      extracted from INSN, and NOPERANDS is the number of elements of
!      the vector which contain meaningful data for this insn.  The
!      contents of this vector are what will be used to convert the insn
!      template into assembler code, so you can change the assembler
!      output by changing the contents of the vector.
  
       This macro is useful when various assembler syntaxes share a single
       file of instruction patterns; by defining this macro differently,
       you can cause a large class of instructions to be output
       differently (such as with rearranged operands).  Naturally,
       variations in assembler syntax affecting individual insn patterns
!      ought to be handled by writing conditional output routines in
!      those patterns.
  
       If this macro is not defined, it is equivalent to a null statement.
  
--- 35993,36011 ----
       they will be output differently.
  
       Here the argument OPVEC is the vector containing the operands
!      extracted from INSN, and NOPERANDS is the number of elements of the
!      vector which contain meaningful data for this insn.  The contents
!      of this vector are what will be used to convert the insn template
!      into assembler code, so you can change the assembler output by
!      changing the contents of the vector.
  
       This macro is useful when various assembler syntaxes share a single
       file of instruction patterns; by defining this macro differently,
       you can cause a large class of instructions to be output
       differently (such as with rearranged operands).  Naturally,
       variations in assembler syntax affecting individual insn patterns
!      ought to be handled by writing conditional output routines in those
!      patterns.
  
       If this macro is not defined, it is equivalent to a null statement.
  
*************** This describes assembler instruction out
*** 36443,36453 ****
       the assembler if necessary.
  
       Here the argument OPVEC is the vector containing the operands
!      extracted from INSN, and NOPERANDS is the number of elements of
!      the vector which contain meaningful data for this insn.  The
!      contents of this vector are what was used to convert the insn
!      template into assembler code, so you can change the assembler mode
!      by checking the contents of the vector.
  
   -- Macro: PRINT_OPERAND (STREAM, X, CODE)
       A C compound statement to output to stdio stream STREAM the
--- 36016,36026 ----
       the assembler if necessary.
  
       Here the argument OPVEC is the vector containing the operands
!      extracted from INSN, and NOPERANDS is the number of elements of the
!      vector which contain meaningful data for this insn.  The contents
!      of this vector are what was used to convert the insn template into
!      assembler code, so you can change the assembler mode by checking
!      the contents of the vector.
  
   -- Macro: PRINT_OPERAND (STREAM, X, CODE)
       A C compound statement to output to stdio stream STREAM the
*************** This describes assembler instruction out
*** 36457,36480 ****
       CODE is a value that can be used to specify one of several ways of
       printing the operand.  It is used when identical operands must be
       printed differently depending on the context.  CODE comes from the
!      `%' specification that was used to request printing of the
!      operand.  If the specification was just `%DIGIT' then CODE is 0;
!      if the specification was `%LTR DIGIT' then CODE is the ASCII code
!      for LTR.
  
       If X is a register, this macro should print the register's name.
!      The names can be found in an array `reg_names' whose type is `char
!      *[]'.  `reg_names' is initialized from `REGISTER_NAMES'.
  
!      When the machine description has a specification `%PUNCT' (a `%'
       followed by a punctuation character), this macro is called with a
       null pointer for X and the punctuation character for CODE.
  
   -- Macro: PRINT_OPERAND_PUNCT_VALID_P (CODE)
       A C expression which evaluates to true if CODE is a valid
!      punctuation character for use in the `PRINT_OPERAND' macro.  If
!      `PRINT_OPERAND_PUNCT_VALID_P' is not defined, it means that no
!      punctuation characters (except for the standard one, `%') are used
       in this way.
  
   -- Macro: PRINT_OPERAND_ADDRESS (STREAM, X)
--- 36030,36052 ----
       CODE is a value that can be used to specify one of several ways of
       printing the operand.  It is used when identical operands must be
       printed differently depending on the context.  CODE comes from the
!      '%' specification that was used to request printing of the operand.
!      If the specification was just '%DIGIT' then CODE is 0; if the
!      specification was '%LTR DIGIT' then CODE is the ASCII code for LTR.
  
       If X is a register, this macro should print the register's name.
!      The names can be found in an array 'reg_names' whose type is 'char
!      *[]'.  'reg_names' is initialized from 'REGISTER_NAMES'.
  
!      When the machine description has a specification '%PUNCT' (a '%'
       followed by a punctuation character), this macro is called with a
       null pointer for X and the punctuation character for CODE.
  
   -- Macro: PRINT_OPERAND_PUNCT_VALID_P (CODE)
       A C expression which evaluates to true if CODE is a valid
!      punctuation character for use in the 'PRINT_OPERAND' macro.  If
!      'PRINT_OPERAND_PUNCT_VALID_P' is not defined, it means that no
!      punctuation characters (except for the standard one, '%') are used
       in this way.
  
   -- Macro: PRINT_OPERAND_ADDRESS (STREAM, X)
*************** This describes assembler instruction out
*** 36484,36496 ****
  
       On some machines, the syntax for a symbolic address depends on the
       section that the address refers to.  On these machines, define the
!      hook `TARGET_ENCODE_SECTION_INFO' to store the information into the
!      `symbol_ref', and then check for it here.  *Note Assembler
       Format::.
  
   -- Macro: DBR_OUTPUT_SEQEND (FILE)
       A C statement, to be executed after all slot-filler instructions
!      have been output.  If necessary, call `dbr_sequence_length' to
       determine the number of slots filled in a sequence (zero if not
       currently outputting a sequence), to decide how many no-ops to
       output, or whatever.
--- 36056,36068 ----
  
       On some machines, the syntax for a symbolic address depends on the
       section that the address refers to.  On these machines, define the
!      hook 'TARGET_ENCODE_SECTION_INFO' to store the information into the
!      'symbol_ref', and then check for it here.  *Note Assembler
       Format::.
  
   -- Macro: DBR_OUTPUT_SEQEND (FILE)
       A C statement, to be executed after all slot-filler instructions
!      have been output.  If necessary, call 'dbr_sequence_length' to
       determine the number of slots filled in a sequence (zero if not
       currently outputting a sequence), to decide how many no-ops to
       output, or whatever.
*************** This describes assembler instruction out
*** 36501,36524 ****
  
   Note that output routines for instructions with delay slots must be
  prepared to deal with not being output as part of a sequence (i.e. when
! the scheduling pass is not run, or when no slot fillers could be
! found.)  The variable `final_sequence' is null when not processing a
! sequence, otherwise it contains the `sequence' rtx being output.
  
   -- Macro: REGISTER_PREFIX
   -- Macro: LOCAL_LABEL_PREFIX
   -- Macro: USER_LABEL_PREFIX
   -- Macro: IMMEDIATE_PREFIX
!      If defined, C string expressions to be used for the `%R', `%L',
!      `%U', and `%I' options of `asm_fprintf' (see `final.c').  These
!      are useful when a single `md' file must support multiple assembler
!      formats.  In that case, the various `tm.h' files can define these
       macros differently.
  
   -- Macro: ASM_FPRINTF_EXTENSIONS (FILE, ARGPTR, FORMAT)
!      If defined this macro should expand to a series of `case'
!      statements which will be parsed inside the `switch' statement of
!      the `asm_fprintf' function.  This allows targets to define extra
       printf formats which may useful when generating their assembler
       statements.  Note that uppercase letters are reserved for future
       generic extensions to asm_fprintf, and so are not available to
--- 36073,36096 ----
  
   Note that output routines for instructions with delay slots must be
  prepared to deal with not being output as part of a sequence (i.e. when
! the scheduling pass is not run, or when no slot fillers could be found.)
! The variable 'final_sequence' is null when not processing a sequence,
! otherwise it contains the 'sequence' rtx being output.
  
   -- Macro: REGISTER_PREFIX
   -- Macro: LOCAL_LABEL_PREFIX
   -- Macro: USER_LABEL_PREFIX
   -- Macro: IMMEDIATE_PREFIX
!      If defined, C string expressions to be used for the '%R', '%L',
!      '%U', and '%I' options of 'asm_fprintf' (see 'final.c').  These are
!      useful when a single 'md' file must support multiple assembler
!      formats.  In that case, the various 'tm.h' files can define these
       macros differently.
  
   -- Macro: ASM_FPRINTF_EXTENSIONS (FILE, ARGPTR, FORMAT)
!      If defined this macro should expand to a series of 'case'
!      statements which will be parsed inside the 'switch' statement of
!      the 'asm_fprintf' function.  This allows targets to define extra
       printf formats which may useful when generating their assembler
       statements.  Note that uppercase letters are reserved for future
       generic extensions to asm_fprintf, and so are not available to
*************** sequence, otherwise it contains the `seq
*** 36534,36558 ****
       use, with zero as the first variant.
  
       If this macro is defined, you may use constructs of the form
!           `{option0|option1|option2...}'
!      in the output templates of patterns (*note Output Template::) or
!      in the first argument of `asm_fprintf'.  This construct outputs
!      `option0', `option1', `option2', etc., if the value of
!      `ASSEMBLER_DIALECT' is zero, one, two, etc.  Any special characters
       within these strings retain their usual meaning.  If there are
       fewer alternatives within the braces than the value of
!      `ASSEMBLER_DIALECT', the construct outputs nothing. If it's needed
!      to print curly braces or `|' character in assembler output
!      directly, `%{', `%}' and `%|' can be used.
  
!      If you do not define this macro, the characters `{', `|' and `}'
!      do not have any special meaning when used in templates or operands
!      to `asm_fprintf'.
  
!      Define the macros `REGISTER_PREFIX', `LOCAL_LABEL_PREFIX',
!      `USER_LABEL_PREFIX' and `IMMEDIATE_PREFIX' if you can express the
       variations in assembler language syntax with that mechanism.
!      Define `ASSEMBLER_DIALECT' and use the `{option0|option1}' syntax
       if the syntax variant are larger and involve such things as
       different opcodes or operand order.
  
--- 36106,36130 ----
       use, with zero as the first variant.
  
       If this macro is defined, you may use constructs of the form
!           '{option0|option1|option2...}'
!      in the output templates of patterns (*note Output Template::) or in
!      the first argument of 'asm_fprintf'.  This construct outputs
!      'option0', 'option1', 'option2', etc., if the value of
!      'ASSEMBLER_DIALECT' is zero, one, two, etc.  Any special characters
       within these strings retain their usual meaning.  If there are
       fewer alternatives within the braces than the value of
!      'ASSEMBLER_DIALECT', the construct outputs nothing.  If it's needed
!      to print curly braces or '|' character in assembler output
!      directly, '%{', '%}' and '%|' can be used.
  
!      If you do not define this macro, the characters '{', '|' and '}' do
!      not have any special meaning when used in templates or operands to
!      'asm_fprintf'.
  
!      Define the macros 'REGISTER_PREFIX', 'LOCAL_LABEL_PREFIX',
!      'USER_LABEL_PREFIX' and 'IMMEDIATE_PREFIX' if you can express the
       variations in assembler language syntax with that mechanism.
!      Define 'ASSEMBLER_DIALECT' and use the '{option0|option1}' syntax
       if the syntax variant are larger and involve such things as
       different opcodes or operand order.
  
*************** sequence, otherwise it contains the `seq
*** 36563,36570 ****
  
   -- Macro: ASM_OUTPUT_REG_POP (STREAM, REGNO)
       A C expression to output to STREAM some assembler code which will
!      pop hard register number REGNO off of the stack.  The code need
!      not be optimal, since this macro is used only when profiling.
  
  
  File: gccint.info,  Node: Dispatch Tables,  Next: Exception Region Output,  Prev: Instruction Output,  Up: Assembler Format
--- 36135,36142 ----
  
   -- Macro: ASM_OUTPUT_REG_POP (STREAM, REGNO)
       A C expression to output to STREAM some assembler code which will
!      pop hard register number REGNO off of the stack.  The code need not
!      be optimal, since this macro is used only when profiling.
  
  
  File: gccint.info,  Node: Dispatch Tables,  Next: Exception Region Output,  Prev: Instruction Output,  Up: Assembler Format
*************** This concerns dispatch tables.
*** 36579,36585 ****
       pseudo-instruction to generate a difference between two labels.
       VALUE and REL are the numbers of two internal labels.  The
       definitions of these labels are output using
!      `(*targetm.asm_out.internal_label)', and they must be printed in
       the same way here.  For example,
  
            fprintf (STREAM, "\t.word L%d-L%d\n",
--- 36151,36157 ----
       pseudo-instruction to generate a difference between two labels.
       VALUE and REL are the numbers of two internal labels.  The
       definitions of these labels are output using
!      '(*targetm.asm_out.internal_label)', and they must be printed in
       the same way here.  For example,
  
            fprintf (STREAM, "\t.word L%d-L%d\n",
*************** This concerns dispatch tables.
*** 36588,36594 ****
       You must provide this macro on machines where the addresses in a
       dispatch table are relative to the table's own address.  If
       defined, GCC will also use this macro on all machines when
!      producing PIC.  BODY is the body of the `ADDR_DIFF_VEC'; it is
       provided so that the mode and flags can be read.
  
   -- Macro: ASM_OUTPUT_ADDR_VEC_ELT (STREAM, VALUE)
--- 36160,36166 ----
       You must provide this macro on machines where the addresses in a
       dispatch table are relative to the table's own address.  If
       defined, GCC will also use this macro on all machines when
!      producing PIC.  BODY is the body of the 'ADDR_DIFF_VEC'; it is
       provided so that the mode and flags can be read.
  
   -- Macro: ASM_OUTPUT_ADDR_VEC_ELT (STREAM, VALUE)
*************** This concerns dispatch tables.
*** 36599,36628 ****
       stream STREAM an assembler pseudo-instruction to generate a
       reference to a label.  VALUE is the number of an internal label
       whose definition is output using
!      `(*targetm.asm_out.internal_label)'.  For example,
  
            fprintf (STREAM, "\t.word L%d\n", VALUE)
  
   -- Macro: ASM_OUTPUT_CASE_LABEL (STREAM, PREFIX, NUM, TABLE)
       Define this if the label before a jump-table needs to be output
       specially.  The first three arguments are the same as for
!      `(*targetm.asm_out.internal_label)'; the fourth argument is the
!      jump-table which follows (a `jump_table_data' containing an
!      `addr_vec' or `addr_diff_vec').
  
!      This feature is used on system V to output a `swbeg' statement for
       the table.
  
       If this macro is not defined, these labels are output with
!      `(*targetm.asm_out.internal_label)'.
  
   -- Macro: ASM_OUTPUT_CASE_END (STREAM, NUM, TABLE)
       Define this if something special must be output at the end of a
       jump-table.  The definition should be a C statement to be executed
       after the assembler code for the table is written.  It should write
!      the appropriate code to stdio stream STREAM.  The argument TABLE
!      is the jump-table insn, and NUM is the label-number of the
!      preceding label.
  
       If this macro is not defined, nothing special is output at the end
       of the jump-table.
--- 36171,36200 ----
       stream STREAM an assembler pseudo-instruction to generate a
       reference to a label.  VALUE is the number of an internal label
       whose definition is output using
!      '(*targetm.asm_out.internal_label)'.  For example,
  
            fprintf (STREAM, "\t.word L%d\n", VALUE)
  
   -- Macro: ASM_OUTPUT_CASE_LABEL (STREAM, PREFIX, NUM, TABLE)
       Define this if the label before a jump-table needs to be output
       specially.  The first three arguments are the same as for
!      '(*targetm.asm_out.internal_label)'; the fourth argument is the
!      jump-table which follows (a 'jump_table_data' containing an
!      'addr_vec' or 'addr_diff_vec').
  
!      This feature is used on system V to output a 'swbeg' statement for
       the table.
  
       If this macro is not defined, these labels are output with
!      '(*targetm.asm_out.internal_label)'.
  
   -- Macro: ASM_OUTPUT_CASE_END (STREAM, NUM, TABLE)
       Define this if something special must be output at the end of a
       jump-table.  The definition should be a C statement to be executed
       after the assembler code for the table is written.  It should write
!      the appropriate code to stdio stream STREAM.  The argument TABLE is
!      the jump-table insn, and NUM is the label-number of the preceding
!      label.
  
       If this macro is not defined, nothing special is output at the end
       of the jump-table.
*************** This concerns dispatch tables.
*** 36634,36641 ****
       should write the appropriate label, for the FDE associated with the
       function declaration DECL, to the stdio stream STREAM.  The third
       argument, FOR_EH, is a boolean: true if this is for an exception
!      table.  The fourth argument, EMPTY, is a boolean: true if this is
!      a placeholder label for an omitted FDE.
  
       The default is that FDEs are not given nonlocal labels.
  
--- 36206,36213 ----
       should write the appropriate label, for the FDE associated with the
       function declaration DECL, to the stdio stream STREAM.  The third
       argument, FOR_EH, is a boolean: true if this is for an exception
!      table.  The fourth argument, EMPTY, is a boolean: true if this is a
!      placeholder label for an omitted FDE.
  
       The default is that FDEs are not given nonlocal labels.
  
*************** This concerns dispatch tables.
*** 36648,36668 ****
  
   -- Target Hook: void TARGET_ASM_EMIT_EXCEPT_PERSONALITY (rtx
            PERSONALITY)
!      If the target implements `TARGET_ASM_UNWIND_EMIT', this hook may
!      be used to emit a directive to install a personality hook into the
!      unwind info.  This hook should not be used if dwarf2 unwind info
!      is used.
  
   -- Target Hook: void TARGET_ASM_UNWIND_EMIT (FILE *STREAM, rtx_insn
            *INSN)
       This target hook emits assembly directives required to unwind the
       given instruction.  This is only used when
!      `TARGET_EXCEPT_UNWIND_INFO' returns `UI_TARGET'.
  
   -- Target Hook: bool TARGET_ASM_UNWIND_EMIT_BEFORE_INSN
!      True if the `TARGET_ASM_UNWIND_EMIT' hook should be called before
!      the assembly for INSN has been emitted, false if the hook should
!      be called afterward.
  
  
  File: gccint.info,  Node: Exception Region Output,  Next: Alignment Output,  Prev: Dispatch Tables,  Up: Assembler Format
--- 36220,36240 ----
  
   -- Target Hook: void TARGET_ASM_EMIT_EXCEPT_PERSONALITY (rtx
            PERSONALITY)
!      If the target implements 'TARGET_ASM_UNWIND_EMIT', this hook may be
!      used to emit a directive to install a personality hook into the
!      unwind info.  This hook should not be used if dwarf2 unwind info is
!      used.
  
   -- Target Hook: void TARGET_ASM_UNWIND_EMIT (FILE *STREAM, rtx_insn
            *INSN)
       This target hook emits assembly directives required to unwind the
       given instruction.  This is only used when
!      'TARGET_EXCEPT_UNWIND_INFO' returns 'UI_TARGET'.
  
   -- Target Hook: bool TARGET_ASM_UNWIND_EMIT_BEFORE_INSN
!      True if the 'TARGET_ASM_UNWIND_EMIT' hook should be called before
!      the assembly for INSN has been emitted, false if the hook should be
!      called afterward.
  
  
  File: gccint.info,  Node: Exception Region Output,  Next: Alignment Output,  Prev: Dispatch Tables,  Up: Assembler Format
*************** region.
*** 36677,36684 ****
       If defined, a C string constant for the name of the section
       containing exception handling frame unwind information.  If not
       defined, GCC will provide a default definition if the target
!      supports named sections.  `crtstuff.c' uses this macro to switch
!      to the appropriate section.
  
       You should define this symbol if your target supports DWARF 2 frame
       unwind information and the default definition does not work.
--- 36249,36256 ----
       If defined, a C string constant for the name of the section
       containing exception handling frame unwind information.  If not
       defined, GCC will provide a default definition if the target
!      supports named sections.  'crtstuff.c' uses this macro to switch to
!      the appropriate section.
  
       You should define this symbol if your target supports DWARF 2 frame
       unwind information and the default definition does not work.
*************** region.
*** 36689,36695 ****
       labels and generate code to register the frames.
  
       This might be necessary, for instance, if the system linker will
!      not place the eh_frames in-between the sentinals from `crtstuff.c',
       or if the system linker does garbage collection and sections cannot
       be marked as not to be collected.
  
--- 36261,36267 ----
       labels and generate code to register the frames.
  
       This might be necessary, for instance, if the system linker will
!      not place the eh_frames in-between the sentinals from 'crtstuff.c',
       or if the system linker does garbage collection and sections cannot
       be marked as not to be collected.
  
*************** region.
*** 36700,36765 ****
       read-only and read-write sections into a single read-write section.
  
   -- Macro: MASK_RETURN_ADDR
!      An rtx used to mask the return address found via
!      `RETURN_ADDR_RTX', so that it does not contain any extraneous set
!      bits in it.
  
   -- Macro: DWARF2_UNWIND_INFO
       Define this macro to 0 if your target supports DWARF 2 frame unwind
       information, but it does not yet work with exception handling.
       Otherwise, if your target supports this information (if it defines
!      `INCOMING_RETURN_ADDR_RTX' and `OBJECT_FORMAT_ELF'), GCC will
       provide a default definition of 1.
  
   -- Common Target Hook: enum unwind_info_type TARGET_EXCEPT_UNWIND_INFO
            (struct gcc_options *OPTS)
       This hook defines the mechanism that will be used for exception
       handling by the target.  If the target has ABI specified unwind
!      tables, the hook should return `UI_TARGET'.  If the target is to
!      use the `setjmp'/`longjmp'-based exception handling scheme, the
!      hook should return `UI_SJLJ'.  If the target supports DWARF 2
!      frame unwind information, the hook should return `UI_DWARF2'.
  
       A target may, if exceptions are disabled, choose to return
!      `UI_NONE'.  This may end up simplifying other parts of
       target-specific code.  The default implementation of this hook
!      never returns `UI_NONE'.
  
       Note that the value returned by this hook should be constant.  It
       should not depend on anything except the command-line switches
!      described by OPTS.  In particular, the setting `UI_SJLJ' must be
       fixed at compiler start-up as C pre-processor macros and builtin
       functions related to exception handling are set up depending on
       this setting.
  
       The default implementation of the hook first honors the
!      `--enable-sjlj-exceptions' configure option, then
!      `DWARF2_UNWIND_INFO', and finally defaults to `UI_SJLJ'.  If
!      `DWARF2_UNWIND_INFO' depends on command-line options, the target
       must define this hook so that OPTS is used correctly.
  
   -- Common Target Hook: bool TARGET_UNWIND_TABLES_DEFAULT
!      This variable should be set to `true' if the target ABI requires
!      unwinding tables even when exceptions are not used.  It must not
!      be modified by command-line option processing.
  
   -- Macro: DONT_USE_BUILTIN_SETJMP
!      Define this macro to 1 if the `setjmp'/`longjmp'-based scheme
!      should use the `setjmp'/`longjmp' functions from the C library
!      instead of the `__builtin_setjmp'/`__builtin_longjmp' machinery.
  
   -- Macro: JMP_BUF_SIZE
!      This macro has no effect unless `DONT_USE_BUILTIN_SETJMP' is also
!      defined.  Define this macro if the default size of `jmp_buf' buffer
!      for the `setjmp'/`longjmp'-based exception handling mechanism is
       not large enough, or if it is much too large.  The default size is
!      `FIRST_PSEUDO_REGISTER * sizeof(void *)'.
  
   -- Macro: DWARF_CIE_DATA_ALIGNMENT
       This macro need only be defined if the target might save registers
       in the function prologue at an offset to the stack pointer that is
!      not aligned to `UNITS_PER_WORD'.  The definition should be the
!      negative minimum alignment if `STACK_GROWS_DOWNWARD' is true, and
       the positive minimum alignment otherwise.  *Note SDB and DWARF::.
       Only applicable if the target supports DWARF 2 frame unwind
       information.
--- 36272,36336 ----
       read-only and read-write sections into a single read-write section.
  
   -- Macro: MASK_RETURN_ADDR
!      An rtx used to mask the return address found via 'RETURN_ADDR_RTX',
!      so that it does not contain any extraneous set bits in it.
  
   -- Macro: DWARF2_UNWIND_INFO
       Define this macro to 0 if your target supports DWARF 2 frame unwind
       information, but it does not yet work with exception handling.
       Otherwise, if your target supports this information (if it defines
!      'INCOMING_RETURN_ADDR_RTX' and 'OBJECT_FORMAT_ELF'), GCC will
       provide a default definition of 1.
  
   -- Common Target Hook: enum unwind_info_type TARGET_EXCEPT_UNWIND_INFO
            (struct gcc_options *OPTS)
       This hook defines the mechanism that will be used for exception
       handling by the target.  If the target has ABI specified unwind
!      tables, the hook should return 'UI_TARGET'.  If the target is to
!      use the 'setjmp'/'longjmp'-based exception handling scheme, the
!      hook should return 'UI_SJLJ'.  If the target supports DWARF 2 frame
!      unwind information, the hook should return 'UI_DWARF2'.
  
       A target may, if exceptions are disabled, choose to return
!      'UI_NONE'.  This may end up simplifying other parts of
       target-specific code.  The default implementation of this hook
!      never returns 'UI_NONE'.
  
       Note that the value returned by this hook should be constant.  It
       should not depend on anything except the command-line switches
!      described by OPTS.  In particular, the setting 'UI_SJLJ' must be
       fixed at compiler start-up as C pre-processor macros and builtin
       functions related to exception handling are set up depending on
       this setting.
  
       The default implementation of the hook first honors the
!      '--enable-sjlj-exceptions' configure option, then
!      'DWARF2_UNWIND_INFO', and finally defaults to 'UI_SJLJ'.  If
!      'DWARF2_UNWIND_INFO' depends on command-line options, the target
       must define this hook so that OPTS is used correctly.
  
   -- Common Target Hook: bool TARGET_UNWIND_TABLES_DEFAULT
!      This variable should be set to 'true' if the target ABI requires
!      unwinding tables even when exceptions are not used.  It must not be
!      modified by command-line option processing.
  
   -- Macro: DONT_USE_BUILTIN_SETJMP
!      Define this macro to 1 if the 'setjmp'/'longjmp'-based scheme
!      should use the 'setjmp'/'longjmp' functions from the C library
!      instead of the '__builtin_setjmp'/'__builtin_longjmp' machinery.
  
   -- Macro: JMP_BUF_SIZE
!      This macro has no effect unless 'DONT_USE_BUILTIN_SETJMP' is also
!      defined.  Define this macro if the default size of 'jmp_buf' buffer
!      for the 'setjmp'/'longjmp'-based exception handling mechanism is
       not large enough, or if it is much too large.  The default size is
!      'FIRST_PSEUDO_REGISTER * sizeof(void *)'.
  
   -- Macro: DWARF_CIE_DATA_ALIGNMENT
       This macro need only be defined if the target might save registers
       in the function prologue at an offset to the stack pointer that is
!      not aligned to 'UNITS_PER_WORD'.  The definition should be the
!      negative minimum alignment if 'STACK_GROWS_DOWNWARD' is true, and
       the positive minimum alignment otherwise.  *Note SDB and DWARF::.
       Only applicable if the target supports DWARF 2 frame unwind
       information.
*************** region.
*** 36767,36773 ****
   -- Target Hook: bool TARGET_TERMINATE_DW2_EH_FRAME_INFO
       Contains the value true if the target should add a zero word onto
       the end of a Dwarf-2 frame info section when used for exception
!      handling.  Default value is false if `EH_FRAME_SECTION_NAME' is
       defined, and true otherwise.
  
   -- Target Hook: rtx TARGET_DWARF_REGISTER_SPAN (rtx REG)
--- 36338,36344 ----
   -- Target Hook: bool TARGET_TERMINATE_DW2_EH_FRAME_INFO
       Contains the value true if the target should add a zero word onto
       the end of a Dwarf-2 frame info section when used for exception
!      handling.  Default value is false if 'EH_FRAME_SECTION_NAME' is
       defined, and true otherwise.
  
   -- Target Hook: rtx TARGET_DWARF_REGISTER_SPAN (rtx REG)
*************** region.
*** 36776,36783 ****
       if the register and its mode are represented in Dwarf in
       non-contiguous locations, or if the register should be represented
       in more than one register in Dwarf.  Otherwise, this hook should
!      return `NULL_RTX'.  If not defined, the default is to return
!      `NULL_RTX'.
  
   -- Target Hook: machine_mode TARGET_DWARF_FRAME_REG_MODE (int REGNO)
       Given a register, this hook should return the mode which the
--- 36347,36354 ----
       if the register and its mode are represented in Dwarf in
       non-contiguous locations, or if the register should be represented
       in more than one register in Dwarf.  Otherwise, this hook should
!      return 'NULL_RTX'.  If not defined, the default is to return
!      'NULL_RTX'.
  
   -- Target Hook: machine_mode TARGET_DWARF_FRAME_REG_MODE (int REGNO)
       Given a register, this hook should return the mode which the
*************** region.
*** 36789,36809 ****
       If some registers are represented in Dwarf-2 unwind information in
       multiple pieces, define this hook to fill in information about the
       sizes of those pieces in the table used by the unwinder at runtime.
!      It will be called by `expand_builtin_init_dwarf_reg_sizes' after
       filling in a single size corresponding to each hard register;
       ADDRESS is the address of the table.
  
   -- Target Hook: bool TARGET_ASM_TTYPE (rtx SYM)
       This hook is used to output a reference from a frame unwinding
       table to the type_info object identified by SYM.  It should return
!      `true' if the reference was output.  Returning `false' will cause
       the reference to be output using the normal Dwarf2 routines.
  
   -- Target Hook: bool TARGET_ARM_EABI_UNWINDER
!      This flag should be set to `true' on targets that use an ARM EABI
!      based unwinding library, and `false' on other targets.  This
       effects the format of unwinding tables, and how the unwinder in
!      entered after running a cleanup.  The default is `false'.
  
  
  File: gccint.info,  Node: Alignment Output,  Prev: Exception Region Output,  Up: Assembler Format
--- 36360,36380 ----
       If some registers are represented in Dwarf-2 unwind information in
       multiple pieces, define this hook to fill in information about the
       sizes of those pieces in the table used by the unwinder at runtime.
!      It will be called by 'expand_builtin_init_dwarf_reg_sizes' after
       filling in a single size corresponding to each hard register;
       ADDRESS is the address of the table.
  
   -- Target Hook: bool TARGET_ASM_TTYPE (rtx SYM)
       This hook is used to output a reference from a frame unwinding
       table to the type_info object identified by SYM.  It should return
!      'true' if the reference was output.  Returning 'false' will cause
       the reference to be output using the normal Dwarf2 routines.
  
   -- Target Hook: bool TARGET_ARM_EABI_UNWINDER
!      This flag should be set to 'true' on targets that use an ARM EABI
!      based unwinding library, and 'false' on other targets.  This
       effects the format of unwinding tables, and how the unwinder in
!      entered after running a cleanup.  The default is 'false'.
  
  
  File: gccint.info,  Node: Alignment Output,  Prev: Exception Region Output,  Up: Assembler Format
*************** This describes commands for alignment.
*** 36823,36839 ****
  
       Unless it's necessary to inspect the LABEL parameter, it is better
       to set the variable ALIGN_JUMPS in the target's
!      `TARGET_OPTION_OVERRIDE'.  Otherwise, you should try to honor the
!      user's selection in ALIGN_JUMPS in a `JUMP_ALIGN' implementation.
  
   -- Target Hook: int TARGET_ASM_JUMP_ALIGN_MAX_SKIP (rtx_insn *LABEL)
       The maximum number of bytes to skip before LABEL when applying
!      `JUMP_ALIGN'.  This works only if `ASM_OUTPUT_MAX_SKIP_ALIGN' is
       defined.
  
   -- Macro: LABEL_ALIGN_AFTER_BARRIER (LABEL)
       The alignment (log base 2) to put in front of LABEL, which follows
!      a `BARRIER'.
  
       This macro need not be defined if you don't want any special
       alignment to be done at such a time.  Most machine descriptions do
--- 36394,36410 ----
  
       Unless it's necessary to inspect the LABEL parameter, it is better
       to set the variable ALIGN_JUMPS in the target's
!      'TARGET_OPTION_OVERRIDE'.  Otherwise, you should try to honor the
!      user's selection in ALIGN_JUMPS in a 'JUMP_ALIGN' implementation.
  
   -- Target Hook: int TARGET_ASM_JUMP_ALIGN_MAX_SKIP (rtx_insn *LABEL)
       The maximum number of bytes to skip before LABEL when applying
!      'JUMP_ALIGN'.  This works only if 'ASM_OUTPUT_MAX_SKIP_ALIGN' is
       defined.
  
   -- Macro: LABEL_ALIGN_AFTER_BARRIER (LABEL)
       The alignment (log base 2) to put in front of LABEL, which follows
!      a 'BARRIER'.
  
       This macro need not be defined if you don't want any special
       alignment to be done at such a time.  Most machine descriptions do
*************** This describes commands for alignment.
*** 36842,36849 ****
   -- Target Hook: int TARGET_ASM_LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP
            (rtx_insn *LABEL)
       The maximum number of bytes to skip before LABEL when applying
!      `LABEL_ALIGN_AFTER_BARRIER'.  This works only if
!      `ASM_OUTPUT_MAX_SKIP_ALIGN' is defined.
  
   -- Macro: LOOP_ALIGN (LABEL)
       The alignment (log base 2) to put in front of LABEL that heads a
--- 36413,36420 ----
   -- Target Hook: int TARGET_ASM_LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP
            (rtx_insn *LABEL)
       The maximum number of bytes to skip before LABEL when applying
!      'LABEL_ALIGN_AFTER_BARRIER'.  This works only if
!      'ASM_OUTPUT_MAX_SKIP_ALIGN' is defined.
  
   -- Macro: LOOP_ALIGN (LABEL)
       The alignment (log base 2) to put in front of LABEL that heads a
*************** This describes commands for alignment.
*** 36854,36902 ****
       not currently define the macro.
  
       Unless it's necessary to inspect the LABEL parameter, it is better
!      to set the variable `align_loops' in the target's
!      `TARGET_OPTION_OVERRIDE'.  Otherwise, you should try to honor the
!      user's selection in `align_loops' in a `LOOP_ALIGN' implementation.
  
   -- Target Hook: int TARGET_ASM_LOOP_ALIGN_MAX_SKIP (rtx_insn *LABEL)
!      The maximum number of bytes to skip when applying `LOOP_ALIGN' to
!      LABEL.  This works only if `ASM_OUTPUT_MAX_SKIP_ALIGN' is defined.
  
   -- Macro: LABEL_ALIGN (LABEL)
       The alignment (log base 2) to put in front of LABEL.  If
!      `LABEL_ALIGN_AFTER_BARRIER' / `LOOP_ALIGN' specify a different
       alignment, the maximum of the specified values is used.
  
       Unless it's necessary to inspect the LABEL parameter, it is better
!      to set the variable `align_labels' in the target's
!      `TARGET_OPTION_OVERRIDE'.  Otherwise, you should try to honor the
!      user's selection in `align_labels' in a `LABEL_ALIGN'
       implementation.
  
   -- Target Hook: int TARGET_ASM_LABEL_ALIGN_MAX_SKIP (rtx_insn *LABEL)
!      The maximum number of bytes to skip when applying `LABEL_ALIGN' to
!      LABEL.  This works only if `ASM_OUTPUT_MAX_SKIP_ALIGN' is defined.
  
   -- Macro: ASM_OUTPUT_SKIP (STREAM, NBYTES)
       A C statement to output to the stdio stream STREAM an assembler
!      instruction to advance the location counter by NBYTES bytes.
!      Those bytes should be zero when loaded.  NBYTES will be a C
!      expression of type `unsigned HOST_WIDE_INT'.
  
   -- Macro: ASM_NO_SKIP_IN_TEXT
!      Define this macro if `ASM_OUTPUT_SKIP' should not be used in the
       text section because it fails to put zeros in the bytes that are
!      skipped.  This is true on many Unix systems, where the pseudo-op
!      to skip bytes produces no-op instructions rather than zeros when
!      used in the text section.
  
   -- Macro: ASM_OUTPUT_ALIGN (STREAM, POWER)
       A C statement to output to the stdio stream STREAM an assembler
       command to advance the location counter to a multiple of 2 to the
!      POWER bytes.  POWER will be a C expression of type `int'.
  
   -- Macro: ASM_OUTPUT_ALIGN_WITH_NOP (STREAM, POWER)
!      Like `ASM_OUTPUT_ALIGN', except that the "nop" instruction is used
       for padding, if necessary.
  
   -- Macro: ASM_OUTPUT_MAX_SKIP_ALIGN (STREAM, POWER, MAX_SKIP)
--- 36425,36473 ----
       not currently define the macro.
  
       Unless it's necessary to inspect the LABEL parameter, it is better
!      to set the variable 'align_loops' in the target's
!      'TARGET_OPTION_OVERRIDE'.  Otherwise, you should try to honor the
!      user's selection in 'align_loops' in a 'LOOP_ALIGN' implementation.
  
   -- Target Hook: int TARGET_ASM_LOOP_ALIGN_MAX_SKIP (rtx_insn *LABEL)
!      The maximum number of bytes to skip when applying 'LOOP_ALIGN' to
!      LABEL.  This works only if 'ASM_OUTPUT_MAX_SKIP_ALIGN' is defined.
  
   -- Macro: LABEL_ALIGN (LABEL)
       The alignment (log base 2) to put in front of LABEL.  If
!      'LABEL_ALIGN_AFTER_BARRIER' / 'LOOP_ALIGN' specify a different
       alignment, the maximum of the specified values is used.
  
       Unless it's necessary to inspect the LABEL parameter, it is better
!      to set the variable 'align_labels' in the target's
!      'TARGET_OPTION_OVERRIDE'.  Otherwise, you should try to honor the
!      user's selection in 'align_labels' in a 'LABEL_ALIGN'
       implementation.
  
   -- Target Hook: int TARGET_ASM_LABEL_ALIGN_MAX_SKIP (rtx_insn *LABEL)
!      The maximum number of bytes to skip when applying 'LABEL_ALIGN' to
!      LABEL.  This works only if 'ASM_OUTPUT_MAX_SKIP_ALIGN' is defined.
  
   -- Macro: ASM_OUTPUT_SKIP (STREAM, NBYTES)
       A C statement to output to the stdio stream STREAM an assembler
!      instruction to advance the location counter by NBYTES bytes.  Those
!      bytes should be zero when loaded.  NBYTES will be a C expression of
!      type 'unsigned HOST_WIDE_INT'.
  
   -- Macro: ASM_NO_SKIP_IN_TEXT
!      Define this macro if 'ASM_OUTPUT_SKIP' should not be used in the
       text section because it fails to put zeros in the bytes that are
!      skipped.  This is true on many Unix systems, where the pseudo-op to
!      skip bytes produces no-op instructions rather than zeros when used
!      in the text section.
  
   -- Macro: ASM_OUTPUT_ALIGN (STREAM, POWER)
       A C statement to output to the stdio stream STREAM an assembler
       command to advance the location counter to a multiple of 2 to the
!      POWER bytes.  POWER will be a C expression of type 'int'.
  
   -- Macro: ASM_OUTPUT_ALIGN_WITH_NOP (STREAM, POWER)
!      Like 'ASM_OUTPUT_ALIGN', except that the "nop" instruction is used
       for padding, if necessary.
  
   -- Macro: ASM_OUTPUT_MAX_SKIP_ALIGN (STREAM, POWER, MAX_SKIP)
*************** This describes commands for alignment.
*** 36904,36910 ****
       command to advance the location counter to a multiple of 2 to the
       POWER bytes, but only if MAX_SKIP or fewer bytes are needed to
       satisfy the alignment request.  POWER and MAX_SKIP will be a C
!      expression of type `int'.
  
  
  File: gccint.info,  Node: Debugging Info,  Next: Floating Point,  Prev: Assembler Format,  Up: Target Macros
--- 36475,36481 ----
       command to advance the location counter to a multiple of 2 to the
       POWER bytes, but only if MAX_SKIP or fewer bytes are needed to
       satisfy the alignment request.  POWER and MAX_SKIP will be a C
!      expression of type 'int'.
  
  
  File: gccint.info,  Node: Debugging Info,  Next: Floating Point,  Prev: Assembler Format,  Up: Target Macros
*************** These macros affect all debugging format
*** 36933,36952 ****
  
   -- Macro: DBX_REGISTER_NUMBER (REGNO)
       A C expression that returns the DBX register number for the
!      compiler register number REGNO.  In the default macro provided,
!      the value of this expression will be REGNO itself.  But sometimes
!      there are some registers that the compiler knows about and DBX
!      does not, or vice versa.  In such cases, some register may need to
!      have one number in the compiler and another for DBX.
  
       If two registers have consecutive numbers inside GCC, and they can
       be used as a pair to hold a multiword value, then they _must_ have
!      consecutive numbers after renumbering with `DBX_REGISTER_NUMBER'.
       Otherwise, debuggers will be unable to access such a pair, because
!      they expect register pairs to be consecutive in their own
!      numbering scheme.
  
!      If you find yourself defining `DBX_REGISTER_NUMBER' in way that
       does not preserve register pairs, then what you must do instead is
       redefine the actual register numbering scheme.
  
--- 36504,36523 ----
  
   -- Macro: DBX_REGISTER_NUMBER (REGNO)
       A C expression that returns the DBX register number for the
!      compiler register number REGNO.  In the default macro provided, the
!      value of this expression will be REGNO itself.  But sometimes there
!      are some registers that the compiler knows about and DBX does not,
!      or vice versa.  In such cases, some register may need to have one
!      number in the compiler and another for DBX.
  
       If two registers have consecutive numbers inside GCC, and they can
       be used as a pair to hold a multiword value, then they _must_ have
!      consecutive numbers after renumbering with 'DBX_REGISTER_NUMBER'.
       Otherwise, debuggers will be unable to access such a pair, because
!      they expect register pairs to be consecutive in their own numbering
!      scheme.
  
!      If you find yourself defining 'DBX_REGISTER_NUMBER' in way that
       does not preserve register pairs, then what you must do instead is
       redefine the actual register numbering scheme.
  
*************** These macros affect all debugging format
*** 36957,36963 ****
       and gives the offset from the frame-pointer.  This is required for
       targets that produce debugging output for DBX or COFF-style
       debugging output for SDB and allow the frame-pointer to be
!      eliminated when the `-g' options is used.
  
   -- Macro: DEBUGGER_ARG_OFFSET (OFFSET, X)
       A C expression that returns the integer offset value for an
--- 36528,36534 ----
       and gives the offset from the frame-pointer.  This is required for
       targets that produce debugging output for DBX or COFF-style
       debugging output for SDB and allow the frame-pointer to be
!      eliminated when the '-g' options is used.
  
   -- Macro: DEBUGGER_ARG_OFFSET (OFFSET, X)
       A C expression that returns the integer offset value for an
*************** These macros affect all debugging format
*** 36966,36986 ****
  
   -- Macro: PREFERRED_DEBUGGING_TYPE
       A C expression that returns the type of debugging output GCC should
!      produce when the user specifies just `-g'.  Define this if you
!      have arranged for GCC to support more than one format of debugging
!      output.  Currently, the allowable values are `DBX_DEBUG',
!      `SDB_DEBUG', `DWARF_DEBUG', `DWARF2_DEBUG', `XCOFF_DEBUG',
!      `VMS_DEBUG', and `VMS_AND_DWARF2_DEBUG'.
  
!      When the user specifies `-ggdb', GCC normally also uses the value
       of this macro to select the debugging output format, but with two
!      exceptions.  If `DWARF2_DEBUGGING_INFO' is defined, GCC uses the
!      value `DWARF2_DEBUG'.  Otherwise, if `DBX_DEBUGGING_INFO' is
!      defined, GCC uses `DBX_DEBUG'.
  
       The value of this macro only affects the default debugging output;
       the user can always get a specific type of output by using
!      `-gstabs', `-gcoff', `-gdwarf-2', `-gxcoff', or `-gvms'.
  
  
  File: gccint.info,  Node: DBX Options,  Next: DBX Hooks,  Prev: All Debuggers,  Up: Debugging Info
--- 36537,36557 ----
  
   -- Macro: PREFERRED_DEBUGGING_TYPE
       A C expression that returns the type of debugging output GCC should
!      produce when the user specifies just '-g'.  Define this if you have
!      arranged for GCC to support more than one format of debugging
!      output.  Currently, the allowable values are 'DBX_DEBUG',
!      'SDB_DEBUG', 'DWARF_DEBUG', 'DWARF2_DEBUG', 'XCOFF_DEBUG',
!      'VMS_DEBUG', and 'VMS_AND_DWARF2_DEBUG'.
  
!      When the user specifies '-ggdb', GCC normally also uses the value
       of this macro to select the debugging output format, but with two
!      exceptions.  If 'DWARF2_DEBUGGING_INFO' is defined, GCC uses the
!      value 'DWARF2_DEBUG'.  Otherwise, if 'DBX_DEBUGGING_INFO' is
!      defined, GCC uses 'DBX_DEBUG'.
  
       The value of this macro only affects the default debugging output;
       the user can always get a specific type of output by using
!      '-gstabs', '-gcoff', '-gdwarf-2', '-gxcoff', or '-gvms'.
  
  
  File: gccint.info,  Node: DBX Options,  Next: DBX Hooks,  Prev: All Debuggers,  Up: Debugging Info
*************** File: gccint.info,  Node: DBX Options,
*** 36991,37002 ****
  These are specific options for DBX output.
  
   -- Macro: DBX_DEBUGGING_INFO
!      Define this macro if GCC should produce debugging output for DBX
!      in response to the `-g' option.
  
   -- Macro: XCOFF_DEBUGGING_INFO
       Define this macro if GCC should produce XCOFF format debugging
!      output in response to the `-g' option.  This is a variant of DBX
       format.
  
   -- Macro: DEFAULT_GDB_EXTENSIONS
--- 36562,36573 ----
  These are specific options for DBX output.
  
   -- Macro: DBX_DEBUGGING_INFO
!      Define this macro if GCC should produce debugging output for DBX in
!      response to the '-g' option.
  
   -- Macro: XCOFF_DEBUGGING_INFO
       Define this macro if GCC should produce XCOFF format debugging
!      output in response to the '-g' option.  This is a variant of DBX
       format.
  
   -- Macro: DEFAULT_GDB_EXTENSIONS
*************** These are specific options for DBX outpu
*** 37007,37045 ****
       information if there is any occasion to.
  
   -- Macro: DEBUG_SYMS_TEXT
!      Define this macro if all `.stabs' commands should be output while
       in the text section.
  
   -- Macro: ASM_STABS_OP
!      A C string constant, including spacing, naming the assembler
!      pseudo op to use instead of `"\t.stabs\t"' to define an ordinary
!      debugging symbol.  If you don't define this macro, `"\t.stabs\t"'
!      is used.  This macro applies only to DBX debugging information
!      format.
  
   -- Macro: ASM_STABD_OP
!      A C string constant, including spacing, naming the assembler
!      pseudo op to use instead of `"\t.stabd\t"' to define a debugging
!      symbol whose value is the current location.  If you don't define
!      this macro, `"\t.stabd\t"' is used.  This macro applies only to
!      DBX debugging information format.
  
   -- Macro: ASM_STABN_OP
!      A C string constant, including spacing, naming the assembler
!      pseudo op to use instead of `"\t.stabn\t"' to define a debugging
!      symbol with no name.  If you don't define this macro,
!      `"\t.stabn\t"' is used.  This macro applies only to DBX debugging
!      information format.
  
   -- Macro: DBX_NO_XREFS
       Define this macro if DBX on your system does not support the
!      construct `xsTAGNAME'.  On some systems, this construct is used to
       describe a forward reference to a structure named TAGNAME.  On
       other systems, this construct is not supported at all.
  
   -- Macro: DBX_CONTIN_LENGTH
       A symbol name in DBX-format debugging information is normally
!      continued (split into two separate `.stabs' directives) when it
       exceeds a certain length (by default, 80 characters).  On some
       operating systems, DBX requires this splitting; on others,
       splitting must not be done.  You can inhibit splitting by defining
--- 36578,36614 ----
       information if there is any occasion to.
  
   -- Macro: DEBUG_SYMS_TEXT
!      Define this macro if all '.stabs' commands should be output while
       in the text section.
  
   -- Macro: ASM_STABS_OP
!      A C string constant, including spacing, naming the assembler pseudo
!      op to use instead of '"\t.stabs\t"' to define an ordinary debugging
!      symbol.  If you don't define this macro, '"\t.stabs\t"' is used.
!      This macro applies only to DBX debugging information format.
  
   -- Macro: ASM_STABD_OP
!      A C string constant, including spacing, naming the assembler pseudo
!      op to use instead of '"\t.stabd\t"' to define a debugging symbol
!      whose value is the current location.  If you don't define this
!      macro, '"\t.stabd\t"' is used.  This macro applies only to DBX
!      debugging information format.
  
   -- Macro: ASM_STABN_OP
!      A C string constant, including spacing, naming the assembler pseudo
!      op to use instead of '"\t.stabn\t"' to define a debugging symbol
!      with no name.  If you don't define this macro, '"\t.stabn\t"' is
!      used.  This macro applies only to DBX debugging information format.
  
   -- Macro: DBX_NO_XREFS
       Define this macro if DBX on your system does not support the
!      construct 'xsTAGNAME'.  On some systems, this construct is used to
       describe a forward reference to a structure named TAGNAME.  On
       other systems, this construct is not supported at all.
  
   -- Macro: DBX_CONTIN_LENGTH
       A symbol name in DBX-format debugging information is normally
!      continued (split into two separate '.stabs' directives) when it
       exceeds a certain length (by default, 80 characters).  On some
       operating systems, DBX requires this splitting; on others,
       splitting must not be done.  You can inhibit splitting by defining
*************** These are specific options for DBX outpu
*** 37048,37108 ****
       length you desire.
  
   -- Macro: DBX_CONTIN_CHAR
!      Normally continuation is indicated by adding a `\' character to
!      the end of a `.stabs' string when a continuation follows.  To use
!      a different character instead, define this macro as a character
       constant for the character you want to use.  Do not define this
       macro if backslash is correct for your system.
  
   -- Macro: DBX_STATIC_STAB_DATA_SECTION
       Define this macro if it is necessary to go to the data section
!      before outputting the `.stabs' pseudo-op for a non-global static
       variable.
  
   -- Macro: DBX_TYPE_DECL_STABS_CODE
!      The value to use in the "code" field of the `.stabs' directive for
!      a typedef.  The default is `N_LSYM'.
  
   -- Macro: DBX_STATIC_CONST_VAR_CODE
!      The value to use in the "code" field of the `.stabs' directive for
       a static variable located in the text section.  DBX format does not
!      provide any "right" way to do this.  The default is `N_FUN'.
  
   -- Macro: DBX_REGPARM_STABS_CODE
!      The value to use in the "code" field of the `.stabs' directive for
       a parameter passed in registers.  DBX format does not provide any
!      "right" way to do this.  The default is `N_RSYM'.
  
   -- Macro: DBX_REGPARM_STABS_LETTER
       The letter to use in DBX symbol data to identify a symbol as a
       parameter passed in registers.  DBX format does not customarily
!      provide any way to do this.  The default is `'P''.
  
   -- Macro: DBX_FUNCTION_FIRST
       Define this macro if the DBX information for a function and its
       arguments should precede the assembler code for the function.
!      Normally, in DBX format, the debugging information entirely
!      follows the assembler code.
  
   -- Macro: DBX_BLOCKS_FUNCTION_RELATIVE
       Define this macro, with value 1, if the value of a symbol
!      describing the scope of a block (`N_LBRAC' or `N_RBRAC') should be
       relative to the start of the enclosing function.  Normally, GCC
       uses an absolute address.
  
   -- Macro: DBX_LINES_FUNCTION_RELATIVE
       Define this macro, with value 1, if the value of a symbol
!      indicating the current line number (`N_SLINE') should be relative
       to the start of the enclosing function.  Normally, GCC uses an
       absolute address.
  
   -- Macro: DBX_USE_BINCL
!      Define this macro if GCC should generate `N_BINCL' and `N_EINCL'
       stabs for included header files, as on Sun systems.  This macro
!      also directs GCC to output a type number as a pair of a file
!      number and a type number within the file.  Normally, GCC does not
!      generate `N_BINCL' or `N_EINCL' stabs, and it outputs a single
!      number for a type number.
  
  
  File: gccint.info,  Node: DBX Hooks,  Next: File Names and DBX,  Prev: DBX Options,  Up: Debugging Info
--- 36617,36677 ----
       length you desire.
  
   -- Macro: DBX_CONTIN_CHAR
!      Normally continuation is indicated by adding a '\' character to the
!      end of a '.stabs' string when a continuation follows.  To use a
!      different character instead, define this macro as a character
       constant for the character you want to use.  Do not define this
       macro if backslash is correct for your system.
  
   -- Macro: DBX_STATIC_STAB_DATA_SECTION
       Define this macro if it is necessary to go to the data section
!      before outputting the '.stabs' pseudo-op for a non-global static
       variable.
  
   -- Macro: DBX_TYPE_DECL_STABS_CODE
!      The value to use in the "code" field of the '.stabs' directive for
!      a typedef.  The default is 'N_LSYM'.
  
   -- Macro: DBX_STATIC_CONST_VAR_CODE
!      The value to use in the "code" field of the '.stabs' directive for
       a static variable located in the text section.  DBX format does not
!      provide any "right" way to do this.  The default is 'N_FUN'.
  
   -- Macro: DBX_REGPARM_STABS_CODE
!      The value to use in the "code" field of the '.stabs' directive for
       a parameter passed in registers.  DBX format does not provide any
!      "right" way to do this.  The default is 'N_RSYM'.
  
   -- Macro: DBX_REGPARM_STABS_LETTER
       The letter to use in DBX symbol data to identify a symbol as a
       parameter passed in registers.  DBX format does not customarily
!      provide any way to do this.  The default is ''P''.
  
   -- Macro: DBX_FUNCTION_FIRST
       Define this macro if the DBX information for a function and its
       arguments should precede the assembler code for the function.
!      Normally, in DBX format, the debugging information entirely follows
!      the assembler code.
  
   -- Macro: DBX_BLOCKS_FUNCTION_RELATIVE
       Define this macro, with value 1, if the value of a symbol
!      describing the scope of a block ('N_LBRAC' or 'N_RBRAC') should be
       relative to the start of the enclosing function.  Normally, GCC
       uses an absolute address.
  
   -- Macro: DBX_LINES_FUNCTION_RELATIVE
       Define this macro, with value 1, if the value of a symbol
!      indicating the current line number ('N_SLINE') should be relative
       to the start of the enclosing function.  Normally, GCC uses an
       absolute address.
  
   -- Macro: DBX_USE_BINCL
!      Define this macro if GCC should generate 'N_BINCL' and 'N_EINCL'
       stabs for included header files, as on Sun systems.  This macro
!      also directs GCC to output a type number as a pair of a file number
!      and a type number within the file.  Normally, GCC does not generate
!      'N_BINCL' or 'N_EINCL' stabs, and it outputs a single number for a
!      type number.
  
  
  File: gccint.info,  Node: DBX Hooks,  Next: File Names and DBX,  Prev: DBX Options,  Up: Debugging Info
*************** These are hooks for DBX format.
*** 37116,37136 ****
       A C statement to output DBX debugging information before code for
       line number LINE of the current source file to the stdio stream
       STREAM.  COUNTER is the number of time the macro was invoked,
!      including the current invocation; it is intended to generate
!      unique labels in the assembly output.
  
       This macro should not be defined if the default output is correct,
       or if it can be made correct by defining
!      `DBX_LINES_FUNCTION_RELATIVE'.
  
   -- Macro: NO_DBX_FUNCTION_END
       Some stabs encapsulation formats (in particular ECOFF), cannot
!      handle the `.stabs "",N_FUN,,0,0,Lscope-function-1' gdb dbx
       extension construct.  On those machines, define this macro to turn
       this feature off without disturbing the rest of the gdb extensions.
  
   -- Macro: NO_DBX_BNSYM_ENSYM
!      Some assemblers cannot handle the `.stabd BNSYM/ENSYM,0,0' gdb dbx
       extension construct.  On those machines, define this macro to turn
       this feature off without disturbing the rest of the gdb extensions.
  
--- 36685,36705 ----
       A C statement to output DBX debugging information before code for
       line number LINE of the current source file to the stdio stream
       STREAM.  COUNTER is the number of time the macro was invoked,
!      including the current invocation; it is intended to generate unique
!      labels in the assembly output.
  
       This macro should not be defined if the default output is correct,
       or if it can be made correct by defining
!      'DBX_LINES_FUNCTION_RELATIVE'.
  
   -- Macro: NO_DBX_FUNCTION_END
       Some stabs encapsulation formats (in particular ECOFF), cannot
!      handle the '.stabs "",N_FUN,,0,0,Lscope-function-1' gdb dbx
       extension construct.  On those machines, define this macro to turn
       this feature off without disturbing the rest of the gdb extensions.
  
   -- Macro: NO_DBX_BNSYM_ENSYM
!      Some assemblers cannot handle the '.stabd BNSYM/ENSYM,0,0' gdb dbx
       extension construct.  On those machines, define this macro to turn
       this feature off without disturbing the rest of the gdb extensions.
  
*************** This describes file names in DBX format.
*** 37152,37160 ****
       DBX debugging information is appropriate.
  
       It may be necessary to refer to a label equal to the beginning of
!      the text section.  You can use `assemble_name (stream,
!      ltext_label_name)' to do so.  If you do this, you must also set
!      the variable USED_LTEXT_LABEL_NAME to `true'.
  
   -- Macro: NO_DBX_MAIN_SOURCE_DIRECTORY
       Define this macro, with value 1, if GCC should not emit an
--- 36721,36729 ----
       DBX debugging information is appropriate.
  
       It may be necessary to refer to a label equal to the beginning of
!      the text section.  You can use 'assemble_name (stream,
!      ltext_label_name)' to do so.  If you do this, you must also set the
!      variable USED_LTEXT_LABEL_NAME to 'true'.
  
   -- Macro: NO_DBX_MAIN_SOURCE_DIRECTORY
       Define this macro, with value 1, if GCC should not emit an
*************** This describes file names in DBX format.
*** 37164,37184 ****
   -- Macro: NO_DBX_GCC_MARKER
       Define this macro, with value 1, if GCC should not emit an
       indication that this object file was compiled by GCC.  The default
!      is to emit an `N_OPT' stab at the beginning of every source file,
!      with `gcc2_compiled.' for the string and value 0.
  
   -- Macro: DBX_OUTPUT_MAIN_SOURCE_FILE_END (STREAM, NAME)
       A C statement to output DBX debugging information at the end of
!      compilation of the main source file NAME.  Output should be
!      written to the stdio stream STREAM.
  
       If you don't define this macro, nothing special is output at the
       end of compilation, which is correct for most machines.
  
   -- Macro: DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
       Define this macro _instead of_ defining
!      `DBX_OUTPUT_MAIN_SOURCE_FILE_END', if what needs to be output at
!      the end of compilation is an `N_SO' stab with an empty string,
       whose value is the highest absolute text address in the file.
  
  
--- 36733,36753 ----
   -- Macro: NO_DBX_GCC_MARKER
       Define this macro, with value 1, if GCC should not emit an
       indication that this object file was compiled by GCC.  The default
!      is to emit an 'N_OPT' stab at the beginning of every source file,
!      with 'gcc2_compiled.' for the string and value 0.
  
   -- Macro: DBX_OUTPUT_MAIN_SOURCE_FILE_END (STREAM, NAME)
       A C statement to output DBX debugging information at the end of
!      compilation of the main source file NAME.  Output should be written
!      to the stdio stream STREAM.
  
       If you don't define this macro, nothing special is output at the
       end of compilation, which is correct for most machines.
  
   -- Macro: DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
       Define this macro _instead of_ defining
!      'DBX_OUTPUT_MAIN_SOURCE_FILE_END', if what needs to be output at
!      the end of compilation is an 'N_SO' stab with an empty string,
       whose value is the highest absolute text address in the file.
  
  
*************** Here are macros for SDB and DWARF output
*** 37191,37232 ****
  
   -- Macro: SDB_DEBUGGING_INFO
       Define this macro to 1 if GCC should produce COFF-style debugging
!      output for SDB in response to the `-g' option.
  
   -- Macro: DWARF2_DEBUGGING_INFO
       Define this macro if GCC should produce dwarf version 2 format
!      debugging output in response to the `-g' option.
  
        -- Target Hook: int TARGET_DWARF_CALLING_CONVENTION (const_tree
                 FUNCTION)
            Define this to enable the dwarf attribute
!           `DW_AT_calling_convention' to be emitted for each function.
!           Instead of an integer return the enum value for the `DW_CC_'
            tag.
  
       To support optional call frame debugging information, you must also
!      define `INCOMING_RETURN_ADDR_RTX' and either set
!      `RTX_FRAME_RELATED_P' on the prologue insns if you use RTL for the
!      prologue, or call `dwarf2out_def_cfa' and `dwarf2out_reg_save' as
!      appropriate from `TARGET_ASM_FUNCTION_PROLOGUE' if you don't.
  
   -- Macro: DWARF2_FRAME_INFO
       Define this macro to a nonzero value if GCC should always output
!      Dwarf 2 frame information.  If `TARGET_EXCEPT_UNWIND_INFO' (*note
!      Exception Region Output::) returns `UI_DWARF2', and exceptions are
!      enabled, GCC will output this information not matter how you
!      define `DWARF2_FRAME_INFO'.
  
   -- Target Hook: enum unwind_info_type TARGET_DEBUG_UNWIND_INFO (void)
       This hook defines the mechanism that will be used for describing
       frame unwind information to the debugger.  Normally the hook will
!      return `UI_DWARF2' if DWARF 2 debug information is enabled, and
!      return `UI_NONE' otherwise.
  
!      A target may return `UI_DWARF2' even when DWARF 2 debug information
       is disabled in order to always output DWARF 2 frame information.
  
!      A target may return `UI_TARGET' if it has ABI specified unwind
       tables.  This will suppress generation of the normal debug frame
       unwind information.
  
--- 36760,36801 ----
  
   -- Macro: SDB_DEBUGGING_INFO
       Define this macro to 1 if GCC should produce COFF-style debugging
!      output for SDB in response to the '-g' option.
  
   -- Macro: DWARF2_DEBUGGING_INFO
       Define this macro if GCC should produce dwarf version 2 format
!      debugging output in response to the '-g' option.
  
        -- Target Hook: int TARGET_DWARF_CALLING_CONVENTION (const_tree
                 FUNCTION)
            Define this to enable the dwarf attribute
!           'DW_AT_calling_convention' to be emitted for each function.
!           Instead of an integer return the enum value for the 'DW_CC_'
            tag.
  
       To support optional call frame debugging information, you must also
!      define 'INCOMING_RETURN_ADDR_RTX' and either set
!      'RTX_FRAME_RELATED_P' on the prologue insns if you use RTL for the
!      prologue, or call 'dwarf2out_def_cfa' and 'dwarf2out_reg_save' as
!      appropriate from 'TARGET_ASM_FUNCTION_PROLOGUE' if you don't.
  
   -- Macro: DWARF2_FRAME_INFO
       Define this macro to a nonzero value if GCC should always output
!      Dwarf 2 frame information.  If 'TARGET_EXCEPT_UNWIND_INFO' (*note
!      Exception Region Output::) returns 'UI_DWARF2', and exceptions are
!      enabled, GCC will output this information not matter how you define
!      'DWARF2_FRAME_INFO'.
  
   -- Target Hook: enum unwind_info_type TARGET_DEBUG_UNWIND_INFO (void)
       This hook defines the mechanism that will be used for describing
       frame unwind information to the debugger.  Normally the hook will
!      return 'UI_DWARF2' if DWARF 2 debug information is enabled, and
!      return 'UI_NONE' otherwise.
  
!      A target may return 'UI_DWARF2' even when DWARF 2 debug information
       is disabled in order to always output DWARF 2 frame information.
  
!      A target may return 'UI_TARGET' if it has ABI specified unwind
       tables.  This will suppress generation of the normal debug frame
       unwind information.
  
*************** Here are macros for SDB and DWARF output
*** 37237,37250 ****
       works.
  
   -- Target Hook: bool TARGET_WANT_DEBUG_PUB_SECTIONS
!      True if the `.debug_pubtypes' and `.debug_pubnames' sections
!      should be emitted.  These sections are not used on most platforms,
!      and in particular GDB does not use them.
  
   -- Target Hook: bool TARGET_FORCE_AT_COMP_DIR
!      True if the `DW_AT_comp_dir' attribute should be emitted for each
!      compilation unit.  This attribute is required for the darwin
!      linker  to emit debug information.
  
   -- Target Hook: bool TARGET_DELAY_SCHED2
       True if sched2 is not to be run at its normal place.  This usually
--- 36806,36819 ----
       works.
  
   -- Target Hook: bool TARGET_WANT_DEBUG_PUB_SECTIONS
!      True if the '.debug_pubtypes' and '.debug_pubnames' sections should
!      be emitted.  These sections are not used on most platforms, and in
!      particular GDB does not use them.
  
   -- Target Hook: bool TARGET_FORCE_AT_COMP_DIR
!      True if the 'DW_AT_comp_dir' attribute should be emitted for each
!      compilation unit.  This attribute is required for the darwin linker
!      to emit debug information.
  
   -- Target Hook: bool TARGET_DELAY_SCHED2
       True if sched2 is not to be run at its normal place.  This usually
*************** Here are macros for SDB and DWARF output
*** 37275,37282 ****
  
   -- Macro: ASM_OUTPUT_DWARF_PCREL (STREAM, SIZE, LABEL)
       A C statement to issue assembly directives that create a
!      self-relative reference to the given LABEL, using an integer of
!      the given SIZE.
  
   -- Macro: ASM_OUTPUT_DWARF_DATAREL (STREAM, SIZE, LABEL)
       A C statement to issue assembly directives that create a reference
--- 36844,36851 ----
  
   -- Macro: ASM_OUTPUT_DWARF_PCREL (STREAM, SIZE, LABEL)
       A C statement to issue assembly directives that create a
!      self-relative reference to the given LABEL, using an integer of the
!      given SIZE.
  
   -- Macro: ASM_OUTPUT_DWARF_DATAREL (STREAM, SIZE, LABEL)
       A C statement to issue assembly directives that create a reference
*************** Here are macros for SDB and DWARF output
*** 37297,37311 ****
  
   -- Macro: PUT_SDB_...
       Define these macros to override the assembler syntax for the
!      special SDB assembler directives.  See `sdbout.c' for a list of
       these macros and their arguments.  If the standard syntax is used,
       you need not define them yourself.
  
   -- Macro: SDB_DELIM
       Some assemblers do not support a semicolon as a delimiter, even
       between SDB assembler directives.  In that case, define this macro
!      to be the delimiter to use (usually `\n').  It is not necessary to
!      define a new set of `PUT_SDB_OP' macros if this is the only change
       required.
  
   -- Macro: SDB_ALLOW_UNKNOWN_REFERENCES
--- 36866,36880 ----
  
   -- Macro: PUT_SDB_...
       Define these macros to override the assembler syntax for the
!      special SDB assembler directives.  See 'sdbout.c' for a list of
       these macros and their arguments.  If the standard syntax is used,
       you need not define them yourself.
  
   -- Macro: SDB_DELIM
       Some assemblers do not support a semicolon as a delimiter, even
       between SDB assembler directives.  In that case, define this macro
!      to be the delimiter to use (usually '\n').  It is not necessary to
!      define a new set of 'PUT_SDB_OP' macros if this is the only change
       required.
  
   -- Macro: SDB_ALLOW_UNKNOWN_REFERENCES
*************** Here are macros for SDB and DWARF output
*** 37321,37327 ****
   -- Macro: SDB_OUTPUT_SOURCE_LINE (STREAM, LINE)
       A C statement to output SDB debugging information before code for
       line number LINE of the current source file to the stdio stream
!      STREAM.  The default is to emit an `.ln' directive.
  
  
  File: gccint.info,  Node: VMS Debug,  Prev: SDB and DWARF,  Up: Debugging Info
--- 36890,36896 ----
   -- Macro: SDB_OUTPUT_SOURCE_LINE (STREAM, LINE)
       A C statement to output SDB debugging information before code for
       line number LINE of the current source file to the stdio stream
!      STREAM.  The default is to emit an '.ln' directive.
  
  
  File: gccint.info,  Node: VMS Debug,  Prev: SDB and DWARF,  Up: Debugging Info
*************** File: gccint.info,  Node: VMS Debug,  Pr
*** 37332,37343 ****
  Here are macros for VMS debug format.
  
   -- Macro: VMS_DEBUGGING_INFO
!      Define this macro if GCC should produce debugging output for VMS
!      in response to the `-g' option.  The default behavior for VMS is
!      to generate minimal debug info for a traceback in the absence of
!      `-g' unless explicitly overridden with `-g0'.  This behavior is
!      controlled by `TARGET_OPTION_OPTIMIZATION' and
!      `TARGET_OPTION_OVERRIDE'.
  
  
  File: gccint.info,  Node: Floating Point,  Next: Mode Switching,  Prev: Debugging Info,  Up: Target Macros
--- 36901,36912 ----
  Here are macros for VMS debug format.
  
   -- Macro: VMS_DEBUGGING_INFO
!      Define this macro if GCC should produce debugging output for VMS in
!      response to the '-g' option.  The default behavior for VMS is to
!      generate minimal debug info for a traceback in the absence of '-g'
!      unless explicitly overridden with '-g0'.  This behavior is
!      controlled by 'TARGET_OPTION_OPTIMIZATION' and
!      'TARGET_OPTION_OVERRIDE'.
  
  
  File: gccint.info,  Node: Floating Point,  Next: Mode Switching,  Prev: Debugging Info,  Up: Target Macros
*************** the target's arithmetic.  To ensure cons
*** 37359,37373 ****
  emulation to work with floating point values, even when the host and
  target floating point formats are identical.
  
!  The following macros are provided by `real.h' for the compiler to use.
  All parts of the compiler which generate or optimize floating-point
  calculations must use these macros.  They may evaluate their operands
  more than once, so operands must not have side effects.
  
   -- Macro: REAL_VALUE_TYPE
       The C data type to be used to hold a floating point value in the
!      target machine's format.  Typically this is a `struct' containing
!      an array of `HOST_WIDE_INT', but all code should treat it as an
       opaque quantity.
  
   -- Macro: HOST_WIDE_INT REAL_VALUE_FIX (REAL_VALUE_TYPE X)
--- 36928,36942 ----
  emulation to work with floating point values, even when the host and
  target floating point formats are identical.
  
!  The following macros are provided by 'real.h' for the compiler to use.
  All parts of the compiler which generate or optimize floating-point
  calculations must use these macros.  They may evaluate their operands
  more than once, so operands must not have side effects.
  
   -- Macro: REAL_VALUE_TYPE
       The C data type to be used to hold a floating point value in the
!      target machine's format.  Typically this is a 'struct' containing
!      an array of 'HOST_WIDE_INT', but all code should treat it as an
       opaque quantity.
  
   -- Macro: HOST_WIDE_INT REAL_VALUE_FIX (REAL_VALUE_TYPE X)
*************** File: gccint.info,  Node: Mode Switching
*** 37409,37461 ****
  The following macros control mode switching optimizations:
  
   -- Macro: OPTIMIZE_MODE_SWITCHING (ENTITY)
!      Define this macro if the port needs extra instructions inserted
!      for mode switching in an optimizing compilation.
  
       For an example, the SH4 can perform both single and double
       precision floating point operations, but to perform a single
       precision operation, the FPSCR PR bit has to be cleared, while for
!      a double precision operation, this bit has to be set.  Changing
!      the PR bit requires a general purpose register as a scratch
!      register, hence these FPSCR sets have to be inserted before
!      reload, i.e. you can't put this into instruction emitting or
!      `TARGET_MACHINE_DEPENDENT_REORG'.
  
       You can have multiple entities that are mode-switched, and select
       at run time which entities actually need it.
!      `OPTIMIZE_MODE_SWITCHING' should return nonzero for any ENTITY
!      that needs mode-switching.  If you define this macro, you also
!      have to define `NUM_MODES_FOR_MODE_SWITCHING',
!      `TARGET_MODE_NEEDED', `TARGET_MODE_PRIORITY' and
!      `TARGET_MODE_EMIT'.  `TARGET_MODE_AFTER', `TARGET_MODE_ENTRY', and
!      `TARGET_MODE_EXIT' are optional.
  
   -- Macro: NUM_MODES_FOR_MODE_SWITCHING
!      If you define `OPTIMIZE_MODE_SWITCHING', you have to define this as
       initializer for an array of integers.  Each initializer element N
       refers to an entity that needs mode switching, and specifies the
       number of different modes that might need to be set for this
       entity.  The position of the initializer in the
!      initializer--starting counting at zero--determines the integer
!      that is used to refer to the mode-switched entity in question.  In
       macros that take mode arguments / yield a mode result, modes are
       represented as numbers 0 ... N - 1.  N is used to specify that no
       mode switch is needed / supplied.
  
   -- Target Hook: void TARGET_MODE_EMIT (int ENTITY, int MODE, int
            PREV_MODE, HARD_REG_SET REGS_LIVE)
!      Generate one or more insns to set ENTITY to MODE. HARD_REG_LIVE is
       the set of hard registers live at the point where the insn(s) are
!      to be inserted. PREV_MOXDE indicates the mode to switch from. Sets
!      of a lower numbered entity will be emitted before sets of a higher
!      numbered entity to a mode of the same or lower priority.
  
   -- Target Hook: int TARGET_MODE_NEEDED (int ENTITY, rtx_insn *INSN)
       ENTITY is an integer specifying a mode-switched entity.  If
!      `OPTIMIZE_MODE_SWITCHING' is defined, you must define this macro
!      to return an integer value not larger than the corresponding
!      element in `NUM_MODES_FOR_MODE_SWITCHING', to denote the mode that
!      ENTITY must be switched into prior to the execution of INSN.
  
   -- Target Hook: int TARGET_MODE_AFTER (int ENTITY, int MODE, rtx_insn
            *INSN)
--- 36978,37030 ----
  The following macros control mode switching optimizations:
  
   -- Macro: OPTIMIZE_MODE_SWITCHING (ENTITY)
!      Define this macro if the port needs extra instructions inserted for
!      mode switching in an optimizing compilation.
  
       For an example, the SH4 can perform both single and double
       precision floating point operations, but to perform a single
       precision operation, the FPSCR PR bit has to be cleared, while for
!      a double precision operation, this bit has to be set.  Changing the
!      PR bit requires a general purpose register as a scratch register,
!      hence these FPSCR sets have to be inserted before reload, i.e. you
!      can't put this into instruction emitting or
!      'TARGET_MACHINE_DEPENDENT_REORG'.
  
       You can have multiple entities that are mode-switched, and select
       at run time which entities actually need it.
!      'OPTIMIZE_MODE_SWITCHING' should return nonzero for any ENTITY that
!      needs mode-switching.  If you define this macro, you also have to
!      define 'NUM_MODES_FOR_MODE_SWITCHING', 'TARGET_MODE_NEEDED',
!      'TARGET_MODE_PRIORITY' and 'TARGET_MODE_EMIT'.
!      'TARGET_MODE_AFTER', 'TARGET_MODE_ENTRY', and 'TARGET_MODE_EXIT'
!      are optional.
  
   -- Macro: NUM_MODES_FOR_MODE_SWITCHING
!      If you define 'OPTIMIZE_MODE_SWITCHING', you have to define this as
       initializer for an array of integers.  Each initializer element N
       refers to an entity that needs mode switching, and specifies the
       number of different modes that might need to be set for this
       entity.  The position of the initializer in the
!      initializer--starting counting at zero--determines the integer that
!      is used to refer to the mode-switched entity in question.  In
       macros that take mode arguments / yield a mode result, modes are
       represented as numbers 0 ... N - 1.  N is used to specify that no
       mode switch is needed / supplied.
  
   -- Target Hook: void TARGET_MODE_EMIT (int ENTITY, int MODE, int
            PREV_MODE, HARD_REG_SET REGS_LIVE)
!      Generate one or more insns to set ENTITY to MODE.  HARD_REG_LIVE is
       the set of hard registers live at the point where the insn(s) are
!      to be inserted.  PREV_MOXDE indicates the mode to switch from.
!      Sets of a lower numbered entity will be emitted before sets of a
!      higher numbered entity to a mode of the same or lower priority.
  
   -- Target Hook: int TARGET_MODE_NEEDED (int ENTITY, rtx_insn *INSN)
       ENTITY is an integer specifying a mode-switched entity.  If
!      'OPTIMIZE_MODE_SWITCHING' is defined, you must define this macro to
!      return an integer value not larger than the corresponding element
!      in 'NUM_MODES_FOR_MODE_SWITCHING', to denote the mode that ENTITY
!      must be switched into prior to the execution of INSN.
  
   -- Target Hook: int TARGET_MODE_AFTER (int ENTITY, int MODE, rtx_insn
            *INSN)
*************** The following macros control mode switch
*** 37466,37506 ****
  
   -- Target Hook: int TARGET_MODE_ENTRY (int ENTITY)
       If this macro is defined, it is evaluated for every ENTITY that
!      needs mode switching.  It should evaluate to an integer, which is
!      a mode that ENTITY is assumed to be switched to at function entry.
!      If `TARGET_MODE_ENTRY' is defined then `TARGET_MODE_EXIT' must be
       defined.
  
   -- Target Hook: int TARGET_MODE_EXIT (int ENTITY)
       If this macro is defined, it is evaluated for every ENTITY that
!      needs mode switching.  It should evaluate to an integer, which is
!      a mode that ENTITY is assumed to be switched to at function exit.
!      If `TARGET_MODE_EXIT' is defined then `TARGET_MODE_ENTRY' must be
       defined.
  
   -- Target Hook: int TARGET_MODE_PRIORITY (int ENTITY, int N)
       This macro specifies the order in which modes for ENTITY are
!      processed. 0 is the highest priority,
!      `NUM_MODES_FOR_MODE_SWITCHING[ENTITY] - 1' the lowest.  The value
       of the macro should be an integer designating a mode for ENTITY.
!      For any fixed ENTITY, `mode_priority' (ENTITY, N) shall be a
!      bijection in 0 ... `num_modes_for_mode_switching[ENTITY] - 1'.
  
  
  File: gccint.info,  Node: Target Attributes,  Next: Emulated TLS,  Prev: Mode Switching,  Up: Target Macros
  
! 17.24 Defining target-specific uses of `__attribute__'
  ======================================================
  
  Target-specific attributes may be defined for functions, data and types.
  These are described using the following target hooks; they also need to
! be documented in `extend.texi'.
  
   -- Target Hook: const struct attribute_spec * TARGET_ATTRIBUTE_TABLE
!      If defined, this target hook points to an array of `struct
!      attribute_spec' (defined in `tree-core.h') specifying the machine
!      specific attributes for this target and some of the restrictions
!      on the entities to which these attributes are applied and the
       arguments they take.
  
   -- Target Hook: bool TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P (const_tree
--- 37035,37075 ----
  
   -- Target Hook: int TARGET_MODE_ENTRY (int ENTITY)
       If this macro is defined, it is evaluated for every ENTITY that
!      needs mode switching.  It should evaluate to an integer, which is a
!      mode that ENTITY is assumed to be switched to at function entry.
!      If 'TARGET_MODE_ENTRY' is defined then 'TARGET_MODE_EXIT' must be
       defined.
  
   -- Target Hook: int TARGET_MODE_EXIT (int ENTITY)
       If this macro is defined, it is evaluated for every ENTITY that
!      needs mode switching.  It should evaluate to an integer, which is a
!      mode that ENTITY is assumed to be switched to at function exit.  If
!      'TARGET_MODE_EXIT' is defined then 'TARGET_MODE_ENTRY' must be
       defined.
  
   -- Target Hook: int TARGET_MODE_PRIORITY (int ENTITY, int N)
       This macro specifies the order in which modes for ENTITY are
!      processed.  0 is the highest priority,
!      'NUM_MODES_FOR_MODE_SWITCHING[ENTITY] - 1' the lowest.  The value
       of the macro should be an integer designating a mode for ENTITY.
!      For any fixed ENTITY, 'mode_priority' (ENTITY, N) shall be a
!      bijection in 0 ... 'num_modes_for_mode_switching[ENTITY] - 1'.
  
  
  File: gccint.info,  Node: Target Attributes,  Next: Emulated TLS,  Prev: Mode Switching,  Up: Target Macros
  
! 17.24 Defining target-specific uses of '__attribute__'
  ======================================================
  
  Target-specific attributes may be defined for functions, data and types.
  These are described using the following target hooks; they also need to
! be documented in 'extend.texi'.
  
   -- Target Hook: const struct attribute_spec * TARGET_ATTRIBUTE_TABLE
!      If defined, this target hook points to an array of 'struct
!      attribute_spec' (defined in 'tree-core.h') specifying the machine
!      specific attributes for this target and some of the restrictions on
!      the entities to which these attributes are applied and the
       arguments they take.
  
   -- Target Hook: bool TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P (const_tree
*************** be documented in `extend.texi'.
*** 37514,37523 ****
   -- Target Hook: int TARGET_COMP_TYPE_ATTRIBUTES (const_tree TYPE1,
            const_tree TYPE2)
       If defined, this target hook is a function which returns zero if
!      the attributes on TYPE1 and TYPE2 are incompatible, one if they
!      are compatible, and two if they are nearly compatible (which
!      causes a warning to be generated).  If this is not defined,
!      machine-specific attributes are supposed always to be compatible.
  
   -- Target Hook: void TARGET_SET_DEFAULT_TYPE_ATTRIBUTES (tree TYPE)
       If defined, this target hook is a function which assigns default
--- 37083,37092 ----
   -- Target Hook: int TARGET_COMP_TYPE_ATTRIBUTES (const_tree TYPE1,
            const_tree TYPE2)
       If defined, this target hook is a function which returns zero if
!      the attributes on TYPE1 and TYPE2 are incompatible, one if they are
!      compatible, and two if they are nearly compatible (which causes a
!      warning to be generated).  If this is not defined, machine-specific
!      attributes are supposed always to be compatible.
  
   -- Target Hook: void TARGET_SET_DEFAULT_TYPE_ATTRIBUTES (tree TYPE)
       If defined, this target hook is a function which assigns default
*************** be documented in `extend.texi'.
*** 37527,37658 ****
            TYPE2)
       Define this target hook if the merging of type attributes needs
       special handling.  If defined, the result is a list of the combined
!      `TYPE_ATTRIBUTES' of TYPE1 and TYPE2.  It is assumed that
!      `comptypes' has already been called and returned 1.  This function
!      may call `merge_attributes' to handle machine-independent merging.
  
   -- Target Hook: tree TARGET_MERGE_DECL_ATTRIBUTES (tree OLDDECL, tree
            NEWDECL)
       Define this target hook if the merging of decl attributes needs
       special handling.  If defined, the result is a list of the combined
!      `DECL_ATTRIBUTES' of OLDDECL and NEWDECL.  NEWDECL is a duplicate
       declaration of OLDDECL.  Examples of when this is needed are when
       one attribute overrides another, or when an attribute is nullified
       by a subsequent definition.  This function may call
!      `merge_attributes' to handle machine-independent merging.
  
!      If the only target-specific handling you require is `dllimport'
!      for Microsoft Windows targets, you should define the macro
!      `TARGET_DLLIMPORT_DECL_ATTRIBUTES' to `1'.  The compiler will then
!      define a function called `merge_dllimport_decl_attributes' which
       can then be defined as the expansion of
!      `TARGET_MERGE_DECL_ATTRIBUTES'.  You can also add
!      `handle_dll_attribute' in the attribute table for your port to
!      perform initial processing of the `dllimport' and `dllexport'
!      attributes.  This is done in `i386/cygwin.h' and `i386/i386.c',
!      for example.
  
   -- Target Hook: bool TARGET_VALID_DLLIMPORT_ATTRIBUTE_P (const_tree
            DECL)
!      DECL is a variable or function with `__attribute__((dllimport))'
       specified.  Use this hook if the target needs to add extra
!      validation checks to `handle_dll_attribute'.
  
   -- Macro: TARGET_DECLSPEC
       Define this macro to a nonzero value if you want to treat
!      `__declspec(X)' as equivalent to `__attribute((X))'.  By default,
       this behavior is enabled only for targets that define
!      `TARGET_DLLIMPORT_DECL_ATTRIBUTES'.  The current implementation of
!      `__declspec' is via a built-in macro, but you should not rely on
       this implementation detail.
  
   -- Target Hook: void TARGET_INSERT_ATTRIBUTES (tree NODE, tree
            *ATTR_PTR)
!      Define this target hook if you want to be able to add attributes
!      to a decl when it is being created.  This is normally useful for
!      back ends which wish to implement a pragma by using the attributes
!      which correspond to the pragma's effect.  The NODE argument is the
!      decl which is being created.  The ATTR_PTR argument is a pointer
!      to the attribute list for this decl.  The list itself should not
!      be modified, since it may be shared with other decls, but
!      attributes may be chained on the head of the list and `*ATTR_PTR'
!      modified to point to the new attributes, or a copy of the list may
!      be made if further changes are needed.
  
   -- Target Hook: bool TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P (const_tree
            FNDECL)
!      This target hook returns `true' if it is OK to inline FNDECL into
       the current function, despite its having target-specific
!      attributes, `false' otherwise.  By default, if a function has a
       target specific attribute attached to it, it will not be inlined.
  
!  -- Target Hook: bool TARGET_OPTION_VALID_ATTRIBUTE_P (tree FNDECL,
!           tree NAME, tree ARGS, int FLAGS)
!      This hook is called to parse `attribute(target("..."))', which
       allows setting target-specific options on individual functions.
       These function-specific options may differ from the options
!      specified on the command line.  The hook should return `true' if
       the options are valid.
  
!      The hook should set the `DECL_FUNCTION_SPECIFIC_TARGET' field in
       the function declaration to hold a pointer to a target-specific
!      `struct cl_target_option' structure.
  
   -- Target Hook: void TARGET_OPTION_SAVE (struct cl_target_option *PTR,
            struct gcc_options *OPTS)
       This hook is called to save any additional target-specific
!      information in the `struct cl_target_option' structure for
!      function-specific options from the `struct gcc_options' structure.
       *Note Option file format::.
  
   -- Target Hook: void TARGET_OPTION_RESTORE (struct gcc_options *OPTS,
            struct cl_target_option *PTR)
       This hook is called to restore any additional target-specific
!      information in the `struct cl_target_option' structure for
!      function-specific options to the `struct gcc_options' structure.
  
   -- Target Hook: void TARGET_OPTION_POST_STREAM_IN (struct
            cl_target_option *PTR)
       This hook is called to update target-specific information in the
!      `struct cl_target_option' structure after it is streamed in from
       LTO bytecode.
  
   -- Target Hook: void TARGET_OPTION_PRINT (FILE *FILE, int INDENT,
            struct cl_target_option *PTR)
       This hook is called to print any additional target-specific
!      information in the `struct cl_target_option' structure for
       function-specific options.
  
   -- Target Hook: bool TARGET_OPTION_PRAGMA_PARSE (tree ARGS, tree
            POP_TARGET)
!      This target hook parses the options for `#pragma GCC target', which
       sets the target-specific options for functions that occur later in
!      the input stream.  The options accepted should be the same as
!      those handled by the `TARGET_OPTION_VALID_ATTRIBUTE_P' hook.
  
   -- Target Hook: void TARGET_OPTION_OVERRIDE (void)
!      Sometimes certain combinations of command options do not make
!      sense on a particular target machine.  You can override the hook
!      `TARGET_OPTION_OVERRIDE' to take account of this.  This hooks is
       called once just after all the command options have been parsed.
  
       Don't use this hook to turn on various extra optimizations for
!      `-O'.  That is what `TARGET_OPTION_OPTIMIZATION' is for.
  
       If you need to do something whenever the optimization level is
       changed via the optimize attribute or pragma, see
!      `TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE'
  
   -- Target Hook: bool TARGET_OPTION_FUNCTION_VERSIONS (tree DECL1, tree
            DECL2)
!      This target hook returns `true' if DECL1 and DECL2 are versions of
       the same function.  DECL1 and DECL2 are function versions if and
       only if they have the same function signature and different target
       specific attributes, that is, they are compiled for different
       target machines.
  
   -- Target Hook: bool TARGET_CAN_INLINE_P (tree CALLER, tree CALLEE)
!      This target hook returns `false' if the CALLER function cannot
       inline CALLEE, based on target specific information.  By default,
       inlining is not allowed if the callee function has function
       specific target options and the caller does not use the same
--- 37096,37227 ----
            TYPE2)
       Define this target hook if the merging of type attributes needs
       special handling.  If defined, the result is a list of the combined
!      'TYPE_ATTRIBUTES' of TYPE1 and TYPE2.  It is assumed that
!      'comptypes' has already been called and returned 1.  This function
!      may call 'merge_attributes' to handle machine-independent merging.
  
   -- Target Hook: tree TARGET_MERGE_DECL_ATTRIBUTES (tree OLDDECL, tree
            NEWDECL)
       Define this target hook if the merging of decl attributes needs
       special handling.  If defined, the result is a list of the combined
!      'DECL_ATTRIBUTES' of OLDDECL and NEWDECL.  NEWDECL is a duplicate
       declaration of OLDDECL.  Examples of when this is needed are when
       one attribute overrides another, or when an attribute is nullified
       by a subsequent definition.  This function may call
!      'merge_attributes' to handle machine-independent merging.
  
!      If the only target-specific handling you require is 'dllimport' for
!      Microsoft Windows targets, you should define the macro
!      'TARGET_DLLIMPORT_DECL_ATTRIBUTES' to '1'.  The compiler will then
!      define a function called 'merge_dllimport_decl_attributes' which
       can then be defined as the expansion of
!      'TARGET_MERGE_DECL_ATTRIBUTES'.  You can also add
!      'handle_dll_attribute' in the attribute table for your port to
!      perform initial processing of the 'dllimport' and 'dllexport'
!      attributes.  This is done in 'i386/cygwin.h' and 'i386/i386.c', for
!      example.
  
   -- Target Hook: bool TARGET_VALID_DLLIMPORT_ATTRIBUTE_P (const_tree
            DECL)
!      DECL is a variable or function with '__attribute__((dllimport))'
       specified.  Use this hook if the target needs to add extra
!      validation checks to 'handle_dll_attribute'.
  
   -- Macro: TARGET_DECLSPEC
       Define this macro to a nonzero value if you want to treat
!      '__declspec(X)' as equivalent to '__attribute((X))'.  By default,
       this behavior is enabled only for targets that define
!      'TARGET_DLLIMPORT_DECL_ATTRIBUTES'.  The current implementation of
!      '__declspec' is via a built-in macro, but you should not rely on
       this implementation detail.
  
   -- Target Hook: void TARGET_INSERT_ATTRIBUTES (tree NODE, tree
            *ATTR_PTR)
!      Define this target hook if you want to be able to add attributes to
!      a decl when it is being created.  This is normally useful for back
!      ends which wish to implement a pragma by using the attributes which
!      correspond to the pragma's effect.  The NODE argument is the decl
!      which is being created.  The ATTR_PTR argument is a pointer to the
!      attribute list for this decl.  The list itself should not be
!      modified, since it may be shared with other decls, but attributes
!      may be chained on the head of the list and '*ATTR_PTR' modified to
!      point to the new attributes, or a copy of the list may be made if
!      further changes are needed.
  
   -- Target Hook: bool TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P (const_tree
            FNDECL)
!      This target hook returns 'true' if it is OK to inline FNDECL into
       the current function, despite its having target-specific
!      attributes, 'false' otherwise.  By default, if a function has a
       target specific attribute attached to it, it will not be inlined.
  
!  -- Target Hook: bool TARGET_OPTION_VALID_ATTRIBUTE_P (tree FNDECL, tree
!           NAME, tree ARGS, int FLAGS)
!      This hook is called to parse 'attribute(target("..."))', which
       allows setting target-specific options on individual functions.
       These function-specific options may differ from the options
!      specified on the command line.  The hook should return 'true' if
       the options are valid.
  
!      The hook should set the 'DECL_FUNCTION_SPECIFIC_TARGET' field in
       the function declaration to hold a pointer to a target-specific
!      'struct cl_target_option' structure.
  
   -- Target Hook: void TARGET_OPTION_SAVE (struct cl_target_option *PTR,
            struct gcc_options *OPTS)
       This hook is called to save any additional target-specific
!      information in the 'struct cl_target_option' structure for
!      function-specific options from the 'struct gcc_options' structure.
       *Note Option file format::.
  
   -- Target Hook: void TARGET_OPTION_RESTORE (struct gcc_options *OPTS,
            struct cl_target_option *PTR)
       This hook is called to restore any additional target-specific
!      information in the 'struct cl_target_option' structure for
!      function-specific options to the 'struct gcc_options' structure.
  
   -- Target Hook: void TARGET_OPTION_POST_STREAM_IN (struct
            cl_target_option *PTR)
       This hook is called to update target-specific information in the
!      'struct cl_target_option' structure after it is streamed in from
       LTO bytecode.
  
   -- Target Hook: void TARGET_OPTION_PRINT (FILE *FILE, int INDENT,
            struct cl_target_option *PTR)
       This hook is called to print any additional target-specific
!      information in the 'struct cl_target_option' structure for
       function-specific options.
  
   -- Target Hook: bool TARGET_OPTION_PRAGMA_PARSE (tree ARGS, tree
            POP_TARGET)
!      This target hook parses the options for '#pragma GCC target', which
       sets the target-specific options for functions that occur later in
!      the input stream.  The options accepted should be the same as those
!      handled by the 'TARGET_OPTION_VALID_ATTRIBUTE_P' hook.
  
   -- Target Hook: void TARGET_OPTION_OVERRIDE (void)
!      Sometimes certain combinations of command options do not make sense
!      on a particular target machine.  You can override the hook
!      'TARGET_OPTION_OVERRIDE' to take account of this.  This hooks is
       called once just after all the command options have been parsed.
  
       Don't use this hook to turn on various extra optimizations for
!      '-O'.  That is what 'TARGET_OPTION_OPTIMIZATION' is for.
  
       If you need to do something whenever the optimization level is
       changed via the optimize attribute or pragma, see
!      'TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE'
  
   -- Target Hook: bool TARGET_OPTION_FUNCTION_VERSIONS (tree DECL1, tree
            DECL2)
!      This target hook returns 'true' if DECL1 and DECL2 are versions of
       the same function.  DECL1 and DECL2 are function versions if and
       only if they have the same function signature and different target
       specific attributes, that is, they are compiled for different
       target machines.
  
   -- Target Hook: bool TARGET_CAN_INLINE_P (tree CALLER, tree CALLEE)
!      This target hook returns 'false' if the CALLER function cannot
       inline CALLEE, based on target specific information.  By default,
       inlining is not allowed if the callee function has function
       specific target options and the caller does not use the same
*************** be documented in `extend.texi'.
*** 37660,37666 ****
  
   -- Target Hook: void TARGET_RELAYOUT_FUNCTION (tree FNDECL)
       This target hook fixes function FNDECL after attributes are
!      processed. Default does nothing. On ARM, the default function's
       alignment is updated with the attribute target.
  
  
--- 37229,37235 ----
  
   -- Target Hook: void TARGET_RELAYOUT_FUNCTION (tree FNDECL)
       This target hook fixes function FNDECL after attributes are
!      processed.  Default does nothing.  On ARM, the default function's
       alignment is updated with the attribute target.
  
  
*************** layer.
*** 37678,37685 ****
  
   The emulation layer works by creating a control object for every TLS
  object.  To access the TLS object, a lookup function is provided which,
! when given the address of the control object, will return the address
! of the current thread's instance of the TLS object.
  
   -- Target Hook: const char * TARGET_EMUTLS_GET_ADDRESS
       Contains the name of the helper function that uses a TLS control
--- 37247,37254 ----
  
   The emulation layer works by creating a control object for every TLS
  object.  To access the TLS object, a lookup function is provided which,
! when given the address of the control object, will return the address of
! the current thread's instance of the TLS object.
  
   -- Target Hook: const char * TARGET_EMUTLS_GET_ADDRESS
       Contains the name of the helper function that uses a TLS control
*************** of the current thread's instance of the
*** 37689,37728 ****
   -- Target Hook: const char * TARGET_EMUTLS_REGISTER_COMMON
       Contains the name of the helper function that should be used at
       program startup to register TLS objects that are implicitly
!      initialized to zero.  If this is `NULL', all TLS objects will have
       explicit initializers.  The default causes libgcc's emulated TLS
       registration function to be used.
  
   -- Target Hook: const char * TARGET_EMUTLS_VAR_SECTION
       Contains the name of the section in which TLS control variables
!      should be placed.  The default of `NULL' allows these to be placed
       in any section.
  
   -- Target Hook: const char * TARGET_EMUTLS_TMPL_SECTION
       Contains the name of the section in which TLS initializers should
!      be placed.  The default of `NULL' allows these to be placed in any
       section.
  
   -- Target Hook: const char * TARGET_EMUTLS_VAR_PREFIX
       Contains the prefix to be prepended to TLS control variable names.
!      The default of `NULL' uses a target-specific prefix.
  
   -- Target Hook: const char * TARGET_EMUTLS_TMPL_PREFIX
       Contains the prefix to be prepended to TLS initializer objects.
!      The default of `NULL' uses a target-specific prefix.
  
   -- Target Hook: tree TARGET_EMUTLS_VAR_FIELDS (tree TYPE, tree *NAME)
       Specifies a function that generates the FIELD_DECLs for a TLS
       control object type.  TYPE is the RECORD_TYPE the fields are for
       and NAME should be filled with the structure tag, if the default of
!      `__emutls_object' is unsuitable.  The default creates a type
       suitable for libgcc's emulated TLS function.
  
   -- Target Hook: tree TARGET_EMUTLS_VAR_INIT (tree VAR, tree DECL, tree
            TMPL_ADDR)
       Specifies a function that generates the CONSTRUCTOR to initialize a
!      TLS control object.  VAR is the TLS control object, DECL is the
!      TLS object and TMPL_ADDR is the address of the initializer.  The
       default initializes libgcc's emulated TLS control object.
  
   -- Target Hook: bool TARGET_EMUTLS_VAR_ALIGN_FIXED
--- 37258,37297 ----
   -- Target Hook: const char * TARGET_EMUTLS_REGISTER_COMMON
       Contains the name of the helper function that should be used at
       program startup to register TLS objects that are implicitly
!      initialized to zero.  If this is 'NULL', all TLS objects will have
       explicit initializers.  The default causes libgcc's emulated TLS
       registration function to be used.
  
   -- Target Hook: const char * TARGET_EMUTLS_VAR_SECTION
       Contains the name of the section in which TLS control variables
!      should be placed.  The default of 'NULL' allows these to be placed
       in any section.
  
   -- Target Hook: const char * TARGET_EMUTLS_TMPL_SECTION
       Contains the name of the section in which TLS initializers should
!      be placed.  The default of 'NULL' allows these to be placed in any
       section.
  
   -- Target Hook: const char * TARGET_EMUTLS_VAR_PREFIX
       Contains the prefix to be prepended to TLS control variable names.
!      The default of 'NULL' uses a target-specific prefix.
  
   -- Target Hook: const char * TARGET_EMUTLS_TMPL_PREFIX
       Contains the prefix to be prepended to TLS initializer objects.
!      The default of 'NULL' uses a target-specific prefix.
  
   -- Target Hook: tree TARGET_EMUTLS_VAR_FIELDS (tree TYPE, tree *NAME)
       Specifies a function that generates the FIELD_DECLs for a TLS
       control object type.  TYPE is the RECORD_TYPE the fields are for
       and NAME should be filled with the structure tag, if the default of
!      '__emutls_object' is unsuitable.  The default creates a type
       suitable for libgcc's emulated TLS function.
  
   -- Target Hook: tree TARGET_EMUTLS_VAR_INIT (tree VAR, tree DECL, tree
            TMPL_ADDR)
       Specifies a function that generates the CONSTRUCTOR to initialize a
!      TLS control object.  VAR is the TLS control object, DECL is the TLS
!      object and TMPL_ADDR is the address of the initializer.  The
       default initializes libgcc's emulated TLS control object.
  
   -- Target Hook: bool TARGET_EMUTLS_VAR_ALIGN_FIXED
*************** of the current thread's instance of the
*** 37731,37737 ****
       optimize single objects.  The default is false.
  
   -- Target Hook: bool TARGET_EMUTLS_DEBUG_FORM_TLS_ADDRESS
!      Specifies whether a DWARF `DW_OP_form_tls_address' location
       descriptor may be used to describe emulated TLS control objects.
  
  
--- 37300,37306 ----
       optimize single objects.  The default is false.
  
   -- Target Hook: bool TARGET_EMUTLS_DEBUG_FORM_TLS_ADDRESS
!      Specifies whether a DWARF 'DW_OP_form_tls_address' location
       descriptor may be used to describe emulated TLS control objects.
  
  
*************** and memory using asm-ized variables.  Fo
*** 37752,37758 ****
  
   ("c0r1" is the default name of register 1 in coprocessor 0; alternate
  names may be added as described below, or the default names may be
! overridden entirely in `SUBTARGET_CONDITIONAL_REGISTER_USAGE'.)
  
   Coprocessor registers are assumed to be epilogue-used; sets to them
  will be preserved even if it does not appear that the register is used
--- 37321,37327 ----
  
   ("c0r1" is the default name of register 1 in coprocessor 0; alternate
  names may be added as described below, or the default names may be
! overridden entirely in 'SUBTARGET_CONDITIONAL_REGISTER_USAGE'.)
  
   Coprocessor registers are assumed to be epilogue-used; sets to them
  will be preserved even if it does not appear that the register is used
*************** File: gccint.info,  Node: PCH Target,  N
*** 37770,37800 ****
  
   -- Target Hook: void * TARGET_GET_PCH_VALIDITY (size_t *SZ)
       This hook returns a pointer to the data needed by
!      `TARGET_PCH_VALID_P' and sets `*SZ' to the size of the data in
       bytes.
  
   -- Target Hook: const char * TARGET_PCH_VALID_P (const void *DATA,
            size_t SZ)
       This hook checks whether the options used to create a PCH file are
!      compatible with the current settings.  It returns `NULL' if so and
       a suitable error message if not.  Error messages will be presented
!      to the user and must be localized using `_(MSG)'.
  
!      DATA is the data that was returned by `TARGET_GET_PCH_VALIDITY'
       when the PCH file was created and SZ is the size of that data in
       bytes.  It's safe to assume that the data was created by the same
       version of the compiler, so no format checking is needed.
  
!      The default definition of `default_pch_valid_p' should be suitable
       for most targets.
  
   -- Target Hook: const char * TARGET_CHECK_PCH_TARGET_FLAGS (int
            PCH_FLAGS)
       If this hook is nonnull, the default implementation of
!      `TARGET_PCH_VALID_P' will use it to check for compatible values of
!      `target_flags'.  PCH_FLAGS specifies the value that `target_flags'
!      had when the PCH file was created.  The return value is the same
!      as for `TARGET_PCH_VALID_P'.
  
   -- Target Hook: void TARGET_PREPARE_PCH_SAVE (void)
       Called before writing out a PCH file.  If the target has some
--- 37339,37369 ----
  
   -- Target Hook: void * TARGET_GET_PCH_VALIDITY (size_t *SZ)
       This hook returns a pointer to the data needed by
!      'TARGET_PCH_VALID_P' and sets '*SZ' to the size of the data in
       bytes.
  
   -- Target Hook: const char * TARGET_PCH_VALID_P (const void *DATA,
            size_t SZ)
       This hook checks whether the options used to create a PCH file are
!      compatible with the current settings.  It returns 'NULL' if so and
       a suitable error message if not.  Error messages will be presented
!      to the user and must be localized using '_(MSG)'.
  
!      DATA is the data that was returned by 'TARGET_GET_PCH_VALIDITY'
       when the PCH file was created and SZ is the size of that data in
       bytes.  It's safe to assume that the data was created by the same
       version of the compiler, so no format checking is needed.
  
!      The default definition of 'default_pch_valid_p' should be suitable
       for most targets.
  
   -- Target Hook: const char * TARGET_CHECK_PCH_TARGET_FLAGS (int
            PCH_FLAGS)
       If this hook is nonnull, the default implementation of
!      'TARGET_PCH_VALID_P' will use it to check for compatible values of
!      'target_flags'.  PCH_FLAGS specifies the value that 'target_flags'
!      had when the PCH file was created.  The return value is the same as
!      for 'TARGET_PCH_VALID_P'.
  
   -- Target Hook: void TARGET_PREPARE_PCH_SAVE (void)
       Called before writing out a PCH file.  If the target has some
*************** File: gccint.info,  Node: C++ ABI,  Next
*** 37815,37834 ****
  
   -- Target Hook: bool TARGET_CXX_GUARD_MASK_BIT (void)
       This hook determines how guard variables are used.  It should
!      return `false' (the default) if the first byte should be used.  A
!      return value of `true' indicates that only the least significant
       bit should be used.
  
   -- Target Hook: tree TARGET_CXX_GET_COOKIE_SIZE (tree TYPE)
       This hook returns the size of the cookie to use when allocating an
       array whose elements have the indicated TYPE.  Assumes that it is
!      already known that a cookie is needed.  The default is `max(sizeof
       (size_t), alignof(type))', as defined in section 2.7 of the
       IA64/Generic C++ ABI.
  
   -- Target Hook: bool TARGET_CXX_COOKIE_HAS_SIZE (void)
!      This hook should return `true' if the element size should be
!      stored in array cookies.  The default is to return `false'.
  
   -- Target Hook: int TARGET_CXX_IMPORT_EXPORT_CLASS (tree TYPE, int
            IMPORT_EXPORT)
--- 37384,37403 ----
  
   -- Target Hook: bool TARGET_CXX_GUARD_MASK_BIT (void)
       This hook determines how guard variables are used.  It should
!      return 'false' (the default) if the first byte should be used.  A
!      return value of 'true' indicates that only the least significant
       bit should be used.
  
   -- Target Hook: tree TARGET_CXX_GET_COOKIE_SIZE (tree TYPE)
       This hook returns the size of the cookie to use when allocating an
       array whose elements have the indicated TYPE.  Assumes that it is
!      already known that a cookie is needed.  The default is 'max(sizeof
       (size_t), alignof(type))', as defined in section 2.7 of the
       IA64/Generic C++ ABI.
  
   -- Target Hook: bool TARGET_CXX_COOKIE_HAS_SIZE (void)
!      This hook should return 'true' if the element size should be stored
!      in array cookies.  The default is to return 'false'.
  
   -- Target Hook: int TARGET_CXX_IMPORT_EXPORT_CLASS (tree TYPE, int
            IMPORT_EXPORT)
*************** File: gccint.info,  Node: C++ ABI,  Next
*** 37840,37848 ****
       the backend's targeted operating system.
  
   -- Target Hook: bool TARGET_CXX_CDTOR_RETURNS_THIS (void)
!      This hook should return `true' if constructors and destructors
!      return the address of the object created/destroyed.  The default
!      is to return `false'.
  
   -- Target Hook: bool TARGET_CXX_KEY_METHOD_MAY_BE_INLINE (void)
       This hook returns true if the key method for a class (i.e., the
--- 37409,37417 ----
       the backend's targeted operating system.
  
   -- Target Hook: bool TARGET_CXX_CDTOR_RETURNS_THIS (void)
!      This hook should return 'true' if constructors and destructors
!      return the address of the object created/destroyed.  The default is
!      to return 'false'.
  
   -- Target Hook: bool TARGET_CXX_KEY_METHOD_MAY_BE_INLINE (void)
       This hook returns true if the key method for a class (i.e., the
*************** File: gccint.info,  Node: C++ ABI,  Next
*** 37852,37858 ****
       function so long as the function is not declared inline in the
       class definition.  Under some variants of the ABI, an inline
       function can never be the key method.  The default is to return
!      `true'.
  
   -- Target Hook: void TARGET_CXX_DETERMINE_CLASS_DATA_VISIBILITY (tree
            DECL)
--- 37421,37427 ----
       function so long as the function is not declared inline in the
       class definition.  Under some variants of the ABI, an inline
       function can never be the key method.  The default is to return
!      'true'.
  
   -- Target Hook: void TARGET_CXX_DETERMINE_CLASS_DATA_VISIBILITY (tree
            DECL)
*************** File: gccint.info,  Node: C++ ABI,  Next
*** 37861,37867 ****
       external linkage in this translation unit.  No ELF visibility has
       been explicitly specified.  If the target needs to specify a
       visibility other than that of the containing class, use this hook
!      to set `DECL_VISIBILITY' and `DECL_VISIBILITY_SPECIFIED'.
  
   -- Target Hook: bool TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT (void)
       This hook returns true (the default) if virtual tables and other
--- 37430,37436 ----
       external linkage in this translation unit.  No ELF visibility has
       been explicitly specified.  If the target needs to specify a
       visibility other than that of the containing class, use this hook
!      to set 'DECL_VISIBILITY' and 'DECL_VISIBILITY_SPECIFIED'.
  
   -- Target Hook: bool TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT (void)
       This hook returns true (the default) if virtual tables and other
*************** File: gccint.info,  Node: C++ ABI,  Next
*** 37876,37901 ****
       be COMDAT, false if it should not be COMDAT.
  
   -- Target Hook: bool TARGET_CXX_USE_AEABI_ATEXIT (void)
!      This hook returns true if `__aeabi_atexit' (as defined by the ARM
       EABI) should be used to register static destructors when
!      `-fuse-cxa-atexit' is in effect.  The default is to return false
!      to use `__cxa_atexit'.
  
   -- Target Hook: bool TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT (void)
!      This hook returns true if the target `atexit' function can be used
!      in the same manner as `__cxa_atexit' to register C++ static
!      destructors. This requires that `atexit'-registered functions in
       shared libraries are run in the correct order when the libraries
!      are unloaded. The default is to return false.
  
   -- Target Hook: void TARGET_CXX_ADJUST_CLASS_AT_DEFINITION (tree TYPE)
!      TYPE is a C++ class (i.e., RECORD_TYPE or UNION_TYPE) that has
!      just been defined.  Use this hook to make adjustments to the class
!      (eg, tweak visibility or perform any other required target
       modifications).
  
   -- Target Hook: tree TARGET_CXX_DECL_MANGLING_CONTEXT (const_tree DECL)
!      Return target-specific mangling context of DECL or `NULL_TREE'.
  
  
  File: gccint.info,  Node: Named Address Spaces,  Next: Misc,  Prev: C++ ABI,  Up: Target Macros
--- 37445,37470 ----
       be COMDAT, false if it should not be COMDAT.
  
   -- Target Hook: bool TARGET_CXX_USE_AEABI_ATEXIT (void)
!      This hook returns true if '__aeabi_atexit' (as defined by the ARM
       EABI) should be used to register static destructors when
!      '-fuse-cxa-atexit' is in effect.  The default is to return false to
!      use '__cxa_atexit'.
  
   -- Target Hook: bool TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT (void)
!      This hook returns true if the target 'atexit' function can be used
!      in the same manner as '__cxa_atexit' to register C++ static
!      destructors.  This requires that 'atexit'-registered functions in
       shared libraries are run in the correct order when the libraries
!      are unloaded.  The default is to return false.
  
   -- Target Hook: void TARGET_CXX_ADJUST_CLASS_AT_DEFINITION (tree TYPE)
!      TYPE is a C++ class (i.e., RECORD_TYPE or UNION_TYPE) that has just
!      been defined.  Use this hook to make adjustments to the class (eg,
!      tweak visibility or perform any other required target
       modifications).
  
   -- Target Hook: tree TARGET_CXX_DECL_MANGLING_CONTEXT (const_tree DECL)
!      Return target-specific mangling context of DECL or 'NULL_TREE'.
  
  
  File: gccint.info,  Node: Named Address Spaces,  Next: Misc,  Prev: C++ ABI,  Up: Target Macros
*************** File: gccint.info,  Node: Named Address
*** 37904,37925 ****
  =============================================
  
  The draft technical report of the ISO/IEC JTC1 S22 WG14 N1275 standards
! committee, `Programming Languages - C - Extensions to support embedded
  processors', specifies a syntax for embedded processors to specify
  alternate address spaces.  You can configure a GCC port to support
  section 5.1 of the draft report to add support for address spaces other
  than the default address space.  These address spaces are new keywords
! that are similar to the `volatile' and `const' type attributes.
  
   Pointers to named address spaces can have a different size than
  pointers to the generic address space.
  
!  For example, the SPU port uses the `__ea' address space to refer to
  memory in the host processor, rather than memory local to the SPU
! processor.  Access to memory in the `__ea' address space involves
  issuing DMA operations to move data between the host processor and the
! local processor memory address space.  Pointers in the `__ea' address
! space are either 32 bits or 64 bits based on the `-mea32' or `-mea64'
  switches (native SPU pointers are always 32 bits).
  
   Internally, address spaces are represented as a small integer in the
--- 37473,37494 ----
  =============================================
  
  The draft technical report of the ISO/IEC JTC1 S22 WG14 N1275 standards
! committee, 'Programming Languages - C - Extensions to support embedded
  processors', specifies a syntax for embedded processors to specify
  alternate address spaces.  You can configure a GCC port to support
  section 5.1 of the draft report to add support for address spaces other
  than the default address space.  These address spaces are new keywords
! that are similar to the 'volatile' and 'const' type attributes.
  
   Pointers to named address spaces can have a different size than
  pointers to the generic address space.
  
!  For example, the SPU port uses the '__ea' address space to refer to
  memory in the host processor, rather than memory local to the SPU
! processor.  Access to memory in the '__ea' address space involves
  issuing DMA operations to move data between the host processor and the
! local processor memory address space.  Pointers in the '__ea' address
! space are either 32 bits or 64 bits based on the '-mea32' or '-mea64'
  switches (native SPU pointers are always 32 bits).
  
   Internally, address spaces are represented as a small integer in the
*************** range 0 to 15 with address space 0 being
*** 37927,37934 ****
  address space.
  
   To register a named address space qualifier keyword with the C front
! end, the target may call the `c_register_addr_space' routine.  For
! example, the SPU port uses the following to declare `__ea' as the
  keyword for named address space #1:
       #define ADDR_SPACE_EA 1
       c_register_addr_space ("__ea", ADDR_SPACE_EA);
--- 37496,37503 ----
  address space.
  
   To register a named address space qualifier keyword with the C front
! end, the target may call the 'c_register_addr_space' routine.  For
! example, the SPU port uses the following to declare '__ea' as the
  keyword for named address space #1:
       #define ADDR_SPACE_EA 1
       c_register_addr_space ("__ea", ADDR_SPACE_EA);
*************** keyword for named address space #1:
*** 37937,37975 ****
            (addr_space_t ADDRESS_SPACE)
       Define this to return the machine mode to use for pointers to
       ADDRESS_SPACE if the target supports named address spaces.  The
!      default version of this hook returns `ptr_mode'.
  
   -- Target Hook: machine_mode TARGET_ADDR_SPACE_ADDRESS_MODE
            (addr_space_t ADDRESS_SPACE)
       Define this to return the machine mode to use for addresses in
       ADDRESS_SPACE if the target supports named address spaces.  The
!      default version of this hook returns `Pmode'.
  
!  -- Target Hook: bool TARGET_ADDR_SPACE_VALID_POINTER_MODE
!           (machine_mode MODE, addr_space_t AS)
       Define this to return nonzero if the port can handle pointers with
       machine mode MODE to address space AS.  This target hook is the
!      same as the `TARGET_VALID_POINTER_MODE' target hook, except that
!      it includes explicit named address space support.  The default
!      version of this hook returns true for the modes returned by either
!      the `TARGET_ADDR_SPACE_POINTER_MODE' or
!      `TARGET_ADDR_SPACE_ADDRESS_MODE' target hooks for the given
!      address space.
  
   -- Target Hook: bool TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P
            (machine_mode MODE, rtx EXP, bool STRICT, addr_space_t AS)
       Define this to return true if EXP is a valid address for mode MODE
       in the named address space AS.  The STRICT parameter says whether
       strict addressing is in effect after reload has finished.  This
!      target hook is the same as the `TARGET_LEGITIMATE_ADDRESS_P'
!      target hook, except that it includes explicit named address space
!      support.
  
   -- Target Hook: rtx TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS (rtx X, rtx
            OLDX, machine_mode MODE, addr_space_t AS)
       Define this to modify an invalid address X to be a valid address
       with mode MODE in the named address space AS.  This target hook is
!      the same as the `TARGET_LEGITIMIZE_ADDRESS' target hook, except
       that it includes explicit named address space support.
  
   -- Target Hook: bool TARGET_ADDR_SPACE_SUBSET_P (addr_space_t SUBSET,
--- 37506,37543 ----
            (addr_space_t ADDRESS_SPACE)
       Define this to return the machine mode to use for pointers to
       ADDRESS_SPACE if the target supports named address spaces.  The
!      default version of this hook returns 'ptr_mode'.
  
   -- Target Hook: machine_mode TARGET_ADDR_SPACE_ADDRESS_MODE
            (addr_space_t ADDRESS_SPACE)
       Define this to return the machine mode to use for addresses in
       ADDRESS_SPACE if the target supports named address spaces.  The
!      default version of this hook returns 'Pmode'.
  
!  -- Target Hook: bool TARGET_ADDR_SPACE_VALID_POINTER_MODE (machine_mode
!           MODE, addr_space_t AS)
       Define this to return nonzero if the port can handle pointers with
       machine mode MODE to address space AS.  This target hook is the
!      same as the 'TARGET_VALID_POINTER_MODE' target hook, except that it
!      includes explicit named address space support.  The default version
!      of this hook returns true for the modes returned by either the
!      'TARGET_ADDR_SPACE_POINTER_MODE' or
!      'TARGET_ADDR_SPACE_ADDRESS_MODE' target hooks for the given address
!      space.
  
   -- Target Hook: bool TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P
            (machine_mode MODE, rtx EXP, bool STRICT, addr_space_t AS)
       Define this to return true if EXP is a valid address for mode MODE
       in the named address space AS.  The STRICT parameter says whether
       strict addressing is in effect after reload has finished.  This
!      target hook is the same as the 'TARGET_LEGITIMATE_ADDRESS_P' target
!      hook, except that it includes explicit named address space support.
  
   -- Target Hook: rtx TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS (rtx X, rtx
            OLDX, machine_mode MODE, addr_space_t AS)
       Define this to modify an invalid address X to be a valid address
       with mode MODE in the named address space AS.  This target hook is
!      the same as the 'TARGET_LEGITIMIZE_ADDRESS' target hook, except
       that it includes explicit named address space support.
  
   -- Target Hook: bool TARGET_ADDR_SPACE_SUBSET_P (addr_space_t SUBSET,
*************** keyword for named address space #1:
*** 37981,37988 ****
       arithmetic operations.  Pointers to a superset address space can be
       converted to pointers to a subset address space via explicit casts.
  
!  -- Target Hook: bool TARGET_ADDR_SPACE_ZERO_ADDRESS_VALID
!           (addr_space_t AS)
       Define this to modify the default handling of address 0 for the
       address space.  Return true if 0 should be considered a valid
       address.
--- 37549,37556 ----
       arithmetic operations.  Pointers to a superset address space can be
       converted to pointers to a subset address space via explicit casts.
  
!  -- Target Hook: bool TARGET_ADDR_SPACE_ZERO_ADDRESS_VALID (addr_space_t
!           AS)
       Define this to modify the default handling of address 0 for the
       address space.  Return true if 0 should be considered a valid
       address.
*************** keyword for named address space #1:
*** 37994,38005 ****
       a new pointer expression with type TO_TYPE that points to a
       different named address space.  When this hook it called, it is
       guaranteed that one of the two address spaces is a subset of the
!      other, as determined by the `TARGET_ADDR_SPACE_SUBSET_P' target
       hook.
  
   -- Target Hook: int TARGET_ADDR_SPACE_DEBUG (addr_space_t AS)
       Define this to define how the address space is encoded in dwarf.
!      The result is the value to be used with `DW_AT_address_class'.
  
  
  File: gccint.info,  Node: Misc,  Prev: Named Address Spaces,  Up: Target Macros
--- 37562,37573 ----
       a new pointer expression with type TO_TYPE that points to a
       different named address space.  When this hook it called, it is
       guaranteed that one of the two address spaces is a subset of the
!      other, as determined by the 'TARGET_ADDR_SPACE_SUBSET_P' target
       hook.
  
   -- Target Hook: int TARGET_ADDR_SPACE_DEBUG (addr_space_t AS)
       Define this to define how the address space is encoded in dwarf.
!      The result is the value to be used with 'DW_AT_address_class'.
  
  
  File: gccint.info,  Node: Misc,  Prev: Named Address Spaces,  Up: Target Macros
*************** Here are several miscellaneous parameter
*** 38013,38020 ****
       Define this boolean macro to indicate whether or not your
       architecture has conditional branches that can span all of memory.
       It is used in conjunction with an optimization that partitions hot
!      and cold basic blocks into separate sections of the executable.
!      If this macro is set to false, gcc will convert any conditional
       branches that attempt to cross between sections into unconditional
       branches or indirect jumps.
  
--- 37581,37588 ----
       Define this boolean macro to indicate whether or not your
       architecture has conditional branches that can span all of memory.
       It is used in conjunction with an optimization that partitions hot
!      and cold basic blocks into separate sections of the executable.  If
!      this macro is set to false, gcc will convert any conditional
       branches that attempt to cross between sections into unconditional
       branches or indirect jumps.
  
*************** Here are several miscellaneous parameter
*** 38032,38042 ****
       elements of a jump-table should have.
  
   -- Macro: CASE_VECTOR_SHORTEN_MODE (MIN_OFFSET, MAX_OFFSET, BODY)
!      Optional: return the preferred mode for an `addr_diff_vec' when
!      the minimum and maximum offset are known.  If you define this, it
       enables extra code in branch shortening to deal with
!      `addr_diff_vec'.  To make this work, you also have to define
!      `INSN_ALIGN' and make the alignment for `addr_diff_vec' explicit.
       The BODY argument is provided so that the offset_unsigned and scale
       flags can be updated.
  
--- 37600,37610 ----
       elements of a jump-table should have.
  
   -- Macro: CASE_VECTOR_SHORTEN_MODE (MIN_OFFSET, MAX_OFFSET, BODY)
!      Optional: return the preferred mode for an 'addr_diff_vec' when the
!      minimum and maximum offset are known.  If you define this, it
       enables extra code in branch shortening to deal with
!      'addr_diff_vec'.  To make this work, you also have to define
!      'INSN_ALIGN' and make the alignment for 'addr_diff_vec' explicit.
       The BODY argument is provided so that the offset_unsigned and scale
       flags can be updated.
  
*************** Here are several miscellaneous parameter
*** 38044,38057 ****
       Define this macro to be a C expression to indicate when jump-tables
       should contain relative addresses.  You need not define this macro
       if jump-tables never contain relative addresses, or jump-tables
!      should contain relative addresses only when `-fPIC' or `-fPIC' is
       in effect.
  
   -- Target Hook: unsigned int TARGET_CASE_VALUES_THRESHOLD (void)
       This function return the smallest number of different values for
       which it is best to use a jump-table instead of a tree of
       conditional branches.  The default is four for machines with a
!      `casesi' instruction and five otherwise.  This is best for most
       machines.
  
   -- Macro: WORD_REGISTER_OPERATIONS
--- 37612,37625 ----
       Define this macro to be a C expression to indicate when jump-tables
       should contain relative addresses.  You need not define this macro
       if jump-tables never contain relative addresses, or jump-tables
!      should contain relative addresses only when '-fPIC' or '-fPIC' is
       in effect.
  
   -- Target Hook: unsigned int TARGET_CASE_VALUES_THRESHOLD (void)
       This function return the smallest number of different values for
       which it is best to use a jump-table instead of a tree of
       conditional branches.  The default is four for machines with a
!      'casesi' instruction and five otherwise.  This is best for most
       machines.
  
   -- Macro: WORD_REGISTER_OPERATIONS
*************** Here are several miscellaneous parameter
*** 38062,38091 ****
  
   -- Macro: LOAD_EXTEND_OP (MEM_MODE)
       Define this macro to be a C expression indicating when insns that
!      read memory in MEM_MODE, an integral mode narrower than a word,
!      set the bits outside of MEM_MODE to be either the sign-extension
!      or the zero-extension of the data read.  Return `SIGN_EXTEND' for
!      values of MEM_MODE for which the insn sign-extends, `ZERO_EXTEND'
!      for which it zero-extends, and `UNKNOWN' for other modes.
  
       This macro is not called with MEM_MODE non-integral or with a width
!      greater than or equal to `BITS_PER_WORD', so you may return any
       value in this case.  Do not define this macro if it would always
!      return `UNKNOWN'.  On machines where this macro is defined, you
!      will normally define it as the constant `SIGN_EXTEND' or
!      `ZERO_EXTEND'.
  
!      You may return a non-`UNKNOWN' value even if for some hard
       registers the sign extension is not performed, if for the
!      `REGNO_REG_CLASS' of these hard registers
!      `CANNOT_CHANGE_MODE_CLASS' returns nonzero when the FROM mode is
       MEM_MODE and the TO mode is any integral mode larger than this but
!      not larger than `word_mode'.
  
!      You must return `UNKNOWN' if for some hard registers that allow
!      this mode, `CANNOT_CHANGE_MODE_CLASS' says that they cannot change
!      to `word_mode', but that they can change to another integral mode
!      that is larger then MEM_MODE but still smaller than `word_mode'.
  
   -- Macro: SHORT_IMMEDIATES_SIGN_EXTEND
       Define this macro to 1 if loading short immediate values into
--- 37630,37659 ----
  
   -- Macro: LOAD_EXTEND_OP (MEM_MODE)
       Define this macro to be a C expression indicating when insns that
!      read memory in MEM_MODE, an integral mode narrower than a word, set
!      the bits outside of MEM_MODE to be either the sign-extension or the
!      zero-extension of the data read.  Return 'SIGN_EXTEND' for values
!      of MEM_MODE for which the insn sign-extends, 'ZERO_EXTEND' for
!      which it zero-extends, and 'UNKNOWN' for other modes.
  
       This macro is not called with MEM_MODE non-integral or with a width
!      greater than or equal to 'BITS_PER_WORD', so you may return any
       value in this case.  Do not define this macro if it would always
!      return 'UNKNOWN'.  On machines where this macro is defined, you
!      will normally define it as the constant 'SIGN_EXTEND' or
!      'ZERO_EXTEND'.
  
!      You may return a non-'UNKNOWN' value even if for some hard
       registers the sign extension is not performed, if for the
!      'REGNO_REG_CLASS' of these hard registers
!      'CANNOT_CHANGE_MODE_CLASS' returns nonzero when the FROM mode is
       MEM_MODE and the TO mode is any integral mode larger than this but
!      not larger than 'word_mode'.
  
!      You must return 'UNKNOWN' if for some hard registers that allow
!      this mode, 'CANNOT_CHANGE_MODE_CLASS' says that they cannot change
!      to 'word_mode', but that they can change to another integral mode
!      that is larger then MEM_MODE but still smaller than 'word_mode'.
  
   -- Macro: SHORT_IMMEDIATES_SIGN_EXTEND
       Define this macro to 1 if loading short immediate values into
*************** Here are several miscellaneous parameter
*** 38093,38100 ****
  
   -- Target Hook: unsigned int TARGET_MIN_DIVISIONS_FOR_RECIP_MUL
            (machine_mode MODE)
!      When `-ffast-math' is in effect, GCC tries to optimize divisions
!      by the same divisor, by turning them into multiplications by the
       reciprocal.  This target hook specifies the minimum number of
       divisions that should be there for GCC to perform the optimization
       for a variable of mode MODE.  The default implementation returns 3
--- 37661,37668 ----
  
   -- Target Hook: unsigned int TARGET_MIN_DIVISIONS_FOR_RECIP_MUL
            (machine_mode MODE)
!      When '-ffast-math' is in effect, GCC tries to optimize divisions by
!      the same divisor, by turning them into multiplications by the
       reciprocal.  This target hook specifies the minimum number of
       divisions that should be there for GCC to perform the optimization
       for a variable of mode MODE.  The default implementation returns 3
*************** Here are several miscellaneous parameter
*** 38109,38130 ****
   -- Macro: MAX_MOVE_MAX
       The maximum number of bytes that a single instruction can move
       quickly between memory and registers or between two memory
!      locations.  If this is undefined, the default is `MOVE_MAX'.
       Otherwise, it is the constant value that is the largest value that
!      `MOVE_MAX' can have at run-time.
  
   -- Macro: SHIFT_COUNT_TRUNCATED
       A C expression that is nonzero if on this machine the number of
       bits actually used for the count of a shift operation is equal to
!      the number of bits needed to represent the size of the object
!      being shifted.  When this macro is nonzero, the compiler will
!      assume that it is safe to omit a sign-extend, zero-extend, and
!      certain bitwise `and' instructions that truncates the count of a
!      shift operation.  On machines that have instructions that act on
!      bit-fields at variable positions, which may include `bit test'
!      instructions, a nonzero `SHIFT_COUNT_TRUNCATED' also enables
!      deletion of truncations of the values that serve as arguments to
!      bit-field instructions.
  
       If both types of instructions truncate the count (for shifts) and
       position (for bit-field operations), or if no variable-position
--- 37677,37698 ----
   -- Macro: MAX_MOVE_MAX
       The maximum number of bytes that a single instruction can move
       quickly between memory and registers or between two memory
!      locations.  If this is undefined, the default is 'MOVE_MAX'.
       Otherwise, it is the constant value that is the largest value that
!      'MOVE_MAX' can have at run-time.
  
   -- Macro: SHIFT_COUNT_TRUNCATED
       A C expression that is nonzero if on this machine the number of
       bits actually used for the count of a shift operation is equal to
!      the number of bits needed to represent the size of the object being
!      shifted.  When this macro is nonzero, the compiler will assume that
!      it is safe to omit a sign-extend, zero-extend, and certain bitwise
!      'and' instructions that truncates the count of a shift operation.
!      On machines that have instructions that act on bit-fields at
!      variable positions, which may include 'bit test' instructions, a
!      nonzero 'SHIFT_COUNT_TRUNCATED' also enables deletion of
!      truncations of the values that serve as arguments to bit-field
!      instructions.
  
       If both types of instructions truncate the count (for shifts) and
       position (for bit-field operations), or if no variable-position
*************** Here are several miscellaneous parameter
*** 38132,38143 ****
  
       However, on some machines, such as the 80386 and the 680x0,
       truncation only applies to shift operations and not the (real or
!      pretended) bit-field operations.  Define `SHIFT_COUNT_TRUNCATED'
!      to be zero on such machines.  Instead, add patterns to the `md'
!      file that include the implied truncation of the shift instructions.
  
!      You need not define this macro if it would always have the value
!      of zero.
  
   -- Target Hook: unsigned HOST_WIDE_INT TARGET_SHIFT_TRUNCATION_MASK
            (machine_mode MODE)
--- 37700,37711 ----
  
       However, on some machines, such as the 80386 and the 680x0,
       truncation only applies to shift operations and not the (real or
!      pretended) bit-field operations.  Define 'SHIFT_COUNT_TRUNCATED' to
!      be zero on such machines.  Instead, add patterns to the 'md' file
!      that include the implied truncation of the shift instructions.
  
!      You need not define this macro if it would always have the value of
!      zero.
  
   -- Target Hook: unsigned HOST_WIDE_INT TARGET_SHIFT_TRUNCATION_MASK
            (machine_mode MODE)
*************** Here are several miscellaneous parameter
*** 38152,38165 ****
       should return 0.  A return value of 0 indicates that no particular
       behavior is guaranteed.
  
!      Note that, unlike `SHIFT_COUNT_TRUNCATED', this function does
!      _not_ apply to general shift rtxes; it applies only to instructions
!      that are generated by the named shift patterns.
  
       The default implementation of this function returns
!      `GET_MODE_BITSIZE (MODE) - 1' if `SHIFT_COUNT_TRUNCATED' and 0
       otherwise.  This definition is always safe, but if
!      `SHIFT_COUNT_TRUNCATED' is false, and some shift patterns
       nevertheless truncate the shift count, you may get better code by
       overriding it.
  
--- 37720,37733 ----
       should return 0.  A return value of 0 indicates that no particular
       behavior is guaranteed.
  
!      Note that, unlike 'SHIFT_COUNT_TRUNCATED', this function does _not_
!      apply to general shift rtxes; it applies only to instructions that
!      are generated by the named shift patterns.
  
       The default implementation of this function returns
!      'GET_MODE_BITSIZE (MODE) - 1' if 'SHIFT_COUNT_TRUNCATED' and 0
       otherwise.  This definition is always safe, but if
!      'SHIFT_COUNT_TRUNCATED' is false, and some shift patterns
       nevertheless truncate the shift count, you may get better code by
       overriding it.
  
*************** Here are several miscellaneous parameter
*** 38171,38213 ****
  
       On many machines, this expression can be 1.
  
!      When `TRULY_NOOP_TRUNCATION' returns 1 for a pair of sizes for
!      modes for which `MODES_TIEABLE_P' is 0, suboptimal code can result.
!      If this is the case, making `TRULY_NOOP_TRUNCATION' return 0 in
       such cases may improve things.
  
   -- Target Hook: int TARGET_MODE_REP_EXTENDED (machine_mode MODE,
            machine_mode REP_MODE)
       The representation of an integral mode can be such that the values
!      are always extended to a wider integral mode.  Return
!      `SIGN_EXTEND' if values of MODE are represented in sign-extended
!      form to REP_MODE.  Return `UNKNOWN' otherwise.  (Currently, none
!      of the targets use zero-extended representation this way so unlike
!      `LOAD_EXTEND_OP', `TARGET_MODE_REP_EXTENDED' is expected to return
!      either `SIGN_EXTEND' or `UNKNOWN'.  Also no target extends MODE to
       REP_MODE so that REP_MODE is not the next widest integral mode and
       currently we take advantage of this fact.)
  
!      Similarly to `LOAD_EXTEND_OP' you may return a non-`UNKNOWN' value
!      even if the extension is not performed on certain hard registers
!      as long as for the `REGNO_REG_CLASS' of these hard registers
!      `CANNOT_CHANGE_MODE_CLASS' returns nonzero.
  
!      Note that `TARGET_MODE_REP_EXTENDED' and `LOAD_EXTEND_OP' describe
!      two related properties.  If you define `TARGET_MODE_REP_EXTENDED
!      (mode, word_mode)' you probably also want to define
!      `LOAD_EXTEND_OP (mode)' to return the same type of extension.
  
!      In order to enforce the representation of `mode',
!      `TRULY_NOOP_TRUNCATION' should return false when truncating to
!      `mode'.
  
   -- Macro: STORE_FLAG_VALUE
       A C expression describing the value returned by a comparison
       operator with an integral mode and stored by a store-flag
!      instruction (`cstoreMODE4') when the condition is true.  This
!      description must apply to _all_ the `cstoreMODE4' patterns and all
!      the comparison operators whose results have a `MODE_INT' mode.
  
       A value of 1 or -1 means that the instruction implementing the
       comparison operator returns exactly 1 or -1 when the comparison is
--- 37739,37781 ----
  
       On many machines, this expression can be 1.
  
!      When 'TRULY_NOOP_TRUNCATION' returns 1 for a pair of sizes for
!      modes for which 'MODES_TIEABLE_P' is 0, suboptimal code can result.
!      If this is the case, making 'TRULY_NOOP_TRUNCATION' return 0 in
       such cases may improve things.
  
   -- Target Hook: int TARGET_MODE_REP_EXTENDED (machine_mode MODE,
            machine_mode REP_MODE)
       The representation of an integral mode can be such that the values
!      are always extended to a wider integral mode.  Return 'SIGN_EXTEND'
!      if values of MODE are represented in sign-extended form to
!      REP_MODE.  Return 'UNKNOWN' otherwise.  (Currently, none of the
!      targets use zero-extended representation this way so unlike
!      'LOAD_EXTEND_OP', 'TARGET_MODE_REP_EXTENDED' is expected to return
!      either 'SIGN_EXTEND' or 'UNKNOWN'.  Also no target extends MODE to
       REP_MODE so that REP_MODE is not the next widest integral mode and
       currently we take advantage of this fact.)
  
!      Similarly to 'LOAD_EXTEND_OP' you may return a non-'UNKNOWN' value
!      even if the extension is not performed on certain hard registers as
!      long as for the 'REGNO_REG_CLASS' of these hard registers
!      'CANNOT_CHANGE_MODE_CLASS' returns nonzero.
  
!      Note that 'TARGET_MODE_REP_EXTENDED' and 'LOAD_EXTEND_OP' describe
!      two related properties.  If you define 'TARGET_MODE_REP_EXTENDED
!      (mode, word_mode)' you probably also want to define 'LOAD_EXTEND_OP
!      (mode)' to return the same type of extension.
  
!      In order to enforce the representation of 'mode',
!      'TRULY_NOOP_TRUNCATION' should return false when truncating to
!      'mode'.
  
   -- Macro: STORE_FLAG_VALUE
       A C expression describing the value returned by a comparison
       operator with an integral mode and stored by a store-flag
!      instruction ('cstoreMODE4') when the condition is true.  This
!      description must apply to _all_ the 'cstoreMODE4' patterns and all
!      the comparison operators whose results have a 'MODE_INT' mode.
  
       A value of 1 or -1 means that the instruction implementing the
       comparison operator returns exactly 1 or -1 when the comparison is
*************** Here are several miscellaneous parameter
*** 38215,38231 ****
       indicates which bits of the result are guaranteed to be 1 when the
       comparison is true.  This value is interpreted in the mode of the
       comparison operation, which is given by the mode of the first
!      operand in the `cstoreMODE4' pattern.  Either the low bit or the
!      sign bit of `STORE_FLAG_VALUE' be on.  Presently, only those bits
       are used by the compiler.
  
!      If `STORE_FLAG_VALUE' is neither 1 or -1, the compiler will
       generate code that depends only on the specified bits.  It can also
       replace comparison operators with equivalent operations if they
       cause the required bits to be set, even if the remaining bits are
       undefined.  For example, on a machine whose comparison operators
!      return an `SImode' value and where `STORE_FLAG_VALUE' is defined as
!      `0x80000000', saying that just the sign bit is relevant, the
       expression
  
            (ne:SI (and:SI X (const_int POWER-OF-2)) (const_int 0))
--- 37783,37799 ----
       indicates which bits of the result are guaranteed to be 1 when the
       comparison is true.  This value is interpreted in the mode of the
       comparison operation, which is given by the mode of the first
!      operand in the 'cstoreMODE4' pattern.  Either the low bit or the
!      sign bit of 'STORE_FLAG_VALUE' be on.  Presently, only those bits
       are used by the compiler.
  
!      If 'STORE_FLAG_VALUE' is neither 1 or -1, the compiler will
       generate code that depends only on the specified bits.  It can also
       replace comparison operators with equivalent operations if they
       cause the required bits to be set, even if the remaining bits are
       undefined.  For example, on a machine whose comparison operators
!      return an 'SImode' value and where 'STORE_FLAG_VALUE' is defined as
!      '0x80000000', saying that just the sign bit is relevant, the
       expression
  
            (ne:SI (and:SI X (const_int POWER-OF-2)) (const_int 0))
*************** Here are several miscellaneous parameter
*** 38234,38257 ****
  
            (ashift:SI X (const_int N))
  
!      where N is the appropriate shift count to move the bit being
!      tested into the sign bit.
  
       There is no way to describe a machine that always sets the
!      low-order bit for a true value, but does not guarantee the value
!      of any other bits, but we do not know of any machine that has such
!      an instruction.  If you are trying to port GCC to such a machine,
       include an instruction to perform a logical-and of the result with
       1 in the pattern for the comparison operators and let us know at
       <gcc@gcc.gnu.org>.
  
       Often, a machine will have multiple instructions that obtain a
       value from a comparison (or the condition codes).  Here are rules
!      to guide the choice of value for `STORE_FLAG_VALUE', and hence the
       instructions to be used:
  
          * Use the shortest sequence that yields a valid definition for
!           `STORE_FLAG_VALUE'.  It is more efficient for the compiler to
            "normalize" the value (convert it to, e.g., 1 or 0) than for
            the comparison operators to do so because there may be
            opportunities to combine the normalization with other
--- 37802,37825 ----
  
            (ashift:SI X (const_int N))
  
!      where N is the appropriate shift count to move the bit being tested
!      into the sign bit.
  
       There is no way to describe a machine that always sets the
!      low-order bit for a true value, but does not guarantee the value of
!      any other bits, but we do not know of any machine that has such an
!      instruction.  If you are trying to port GCC to such a machine,
       include an instruction to perform a logical-and of the result with
       1 in the pattern for the comparison operators and let us know at
       <gcc@gcc.gnu.org>.
  
       Often, a machine will have multiple instructions that obtain a
       value from a comparison (or the condition codes).  Here are rules
!      to guide the choice of value for 'STORE_FLAG_VALUE', and hence the
       instructions to be used:
  
          * Use the shortest sequence that yields a valid definition for
!           'STORE_FLAG_VALUE'.  It is more efficient for the compiler to
            "normalize" the value (convert it to, e.g., 1 or 0) than for
            the comparison operators to do so because there may be
            opportunities to combine the normalization with other
*************** Here are several miscellaneous parameter
*** 38261,38331 ****
            being slightly preferred on machines with expensive jumps and
            1 preferred on other machines.
  
!         * As a second choice, choose a value of `0x80000001' if
            instructions exist that set both the sign and low-order bits
            but do not define the others.
  
!         * Otherwise, use a value of `0x80000000'.
  
       Many machines can produce both the value chosen for
!      `STORE_FLAG_VALUE' and its negation in the same number of
       instructions.  On those machines, you should also define a pattern
       for those cases, e.g., one matching
  
            (set A (neg:M (ne:M B C)))
  
!      Some machines can also perform `and' or `plus' operations on
       condition code values with less instructions than the corresponding
!      `cstoreMODE4' insn followed by `and' or `plus'.  On those
!      machines, define the appropriate patterns.  Use the names `incscc'
!      and `decscc', respectively, for the patterns which perform `plus'
!      or `minus' operations on condition code values.  See `rs6000.md'
!      for some examples.  The GNU Superoptimizer can be used to find
!      such instruction sequences on other machines.
  
       If this macro is not defined, the default value, 1, is used.  You
!      need not define `STORE_FLAG_VALUE' if the machine has no store-flag
       instructions, or if the value generated by these instructions is 1.
  
   -- Macro: FLOAT_STORE_FLAG_VALUE (MODE)
!      A C expression that gives a nonzero `REAL_VALUE_TYPE' value that is
       returned when comparison operators with floating-point results are
       true.  Define this macro on machines that have comparison
!      operations that return floating-point values.  If there are no
!      such operations, do not define this macro.
  
   -- Macro: VECTOR_STORE_FLAG_VALUE (MODE)
       A C expression that gives a rtx representing the nonzero true
       element for vector comparisons.  The returned rtx should be valid
!      for the inner mode of MODE which is guaranteed to be a vector
!      mode.  Define this macro on machines that have vector comparison
       operations that return a vector result.  If there are no such
       operations, do not define this macro.  Typically, this macro is
!      defined as `const1_rtx' or `constm1_rtx'.  This macro may return
!      `NULL_RTX' to prevent the compiler optimizing such vector
       comparison operations for the given mode.
  
   -- Macro: CLZ_DEFINED_VALUE_AT_ZERO (MODE, VALUE)
   -- Macro: CTZ_DEFINED_VALUE_AT_ZERO (MODE, VALUE)
       A C expression that indicates whether the architecture defines a
!      value for `clz' or `ctz' with a zero operand.  A result of `0'
!      indicates the value is undefined.  If the value is defined for
!      only the RTL expression, the macro should evaluate to `1'; if the
!      value applies also to the corresponding optab entry (which is
!      normally the case if it expands directly into the corresponding
!      RTL), then the macro should evaluate to `2'.  In the cases where
!      the value is defined, VALUE should be set to this value.
  
!      If this macro is not defined, the value of `clz' or `ctz' at zero
       is assumed to be undefined.
  
!      This macro must be defined if the target's expansion for `ffs'
       relies on a particular value to get correct results.  Otherwise it
       is not necessary, though it may be used to optimize some corner
!      cases, and to provide a default expansion for the `ffs' optab.
  
!      Note that regardless of this macro the "definedness" of `clz' and
!      `ctz' at zero do _not_ extend to the builtin functions visible to
       the user.  Thus one may be free to adjust the value at will to
       match the target expansion of these operations without fear of
       breaking the API.
--- 37829,37899 ----
            being slightly preferred on machines with expensive jumps and
            1 preferred on other machines.
  
!         * As a second choice, choose a value of '0x80000001' if
            instructions exist that set both the sign and low-order bits
            but do not define the others.
  
!         * Otherwise, use a value of '0x80000000'.
  
       Many machines can produce both the value chosen for
!      'STORE_FLAG_VALUE' and its negation in the same number of
       instructions.  On those machines, you should also define a pattern
       for those cases, e.g., one matching
  
            (set A (neg:M (ne:M B C)))
  
!      Some machines can also perform 'and' or 'plus' operations on
       condition code values with less instructions than the corresponding
!      'cstoreMODE4' insn followed by 'and' or 'plus'.  On those machines,
!      define the appropriate patterns.  Use the names 'incscc' and
!      'decscc', respectively, for the patterns which perform 'plus' or
!      'minus' operations on condition code values.  See 'rs6000.md' for
!      some examples.  The GNU Superoptimizer can be used to find such
!      instruction sequences on other machines.
  
       If this macro is not defined, the default value, 1, is used.  You
!      need not define 'STORE_FLAG_VALUE' if the machine has no store-flag
       instructions, or if the value generated by these instructions is 1.
  
   -- Macro: FLOAT_STORE_FLAG_VALUE (MODE)
!      A C expression that gives a nonzero 'REAL_VALUE_TYPE' value that is
       returned when comparison operators with floating-point results are
       true.  Define this macro on machines that have comparison
!      operations that return floating-point values.  If there are no such
!      operations, do not define this macro.
  
   -- Macro: VECTOR_STORE_FLAG_VALUE (MODE)
       A C expression that gives a rtx representing the nonzero true
       element for vector comparisons.  The returned rtx should be valid
!      for the inner mode of MODE which is guaranteed to be a vector mode.
!      Define this macro on machines that have vector comparison
       operations that return a vector result.  If there are no such
       operations, do not define this macro.  Typically, this macro is
!      defined as 'const1_rtx' or 'constm1_rtx'.  This macro may return
!      'NULL_RTX' to prevent the compiler optimizing such vector
       comparison operations for the given mode.
  
   -- Macro: CLZ_DEFINED_VALUE_AT_ZERO (MODE, VALUE)
   -- Macro: CTZ_DEFINED_VALUE_AT_ZERO (MODE, VALUE)
       A C expression that indicates whether the architecture defines a
!      value for 'clz' or 'ctz' with a zero operand.  A result of '0'
!      indicates the value is undefined.  If the value is defined for only
!      the RTL expression, the macro should evaluate to '1'; if the value
!      applies also to the corresponding optab entry (which is normally
!      the case if it expands directly into the corresponding RTL), then
!      the macro should evaluate to '2'.  In the cases where the value is
!      defined, VALUE should be set to this value.
  
!      If this macro is not defined, the value of 'clz' or 'ctz' at zero
       is assumed to be undefined.
  
!      This macro must be defined if the target's expansion for 'ffs'
       relies on a particular value to get correct results.  Otherwise it
       is not necessary, though it may be used to optimize some corner
!      cases, and to provide a default expansion for the 'ffs' optab.
  
!      Note that regardless of this macro the "definedness" of 'clz' and
!      'ctz' at zero do _not_ extend to the builtin functions visible to
       the user.  Thus one may be free to adjust the value at will to
       match the target expansion of these operations without fear of
       breaking the API.
*************** Here are several miscellaneous parameter
*** 38333,38472 ****
   -- Macro: Pmode
       An alias for the machine mode for pointers.  On most machines,
       define this to be the integer mode corresponding to the width of a
!      hardware pointer; `SImode' on 32-bit machine or `DImode' on 64-bit
       machines.  On some machines you must define this to be one of the
!      partial integer modes, such as `PSImode'.
  
!      The width of `Pmode' must be at least as large as the value of
!      `POINTER_SIZE'.  If it is not equal, you must define the macro
!      `POINTERS_EXTEND_UNSIGNED' to specify how pointers are extended to
!      `Pmode'.
  
   -- Macro: FUNCTION_MODE
       An alias for the machine mode used for memory references to
!      functions being called, in `call' RTL expressions.  On most CISC
       machines, where an instruction can begin at any byte address, this
!      should be `QImode'.  On most RISC machines, where all instructions
       have fixed size and alignment, this should be a mode with the same
       size and alignment as the machine instruction words - typically
!      `SImode' or `HImode'.
  
   -- Macro: STDC_0_IN_SYSTEM_HEADERS
!      In normal operation, the preprocessor expands `__STDC__' to the
       constant 1, to signify that GCC conforms to ISO Standard C.  On
       some hosts, like Solaris, the system compiler uses a different
!      convention, where `__STDC__' is normally 0, but is 1 if the user
       specifies strict conformance to the C Standard.
  
!      Defining `STDC_0_IN_SYSTEM_HEADERS' makes GNU CPP follows the host
!      convention when processing system header files, but when
!      processing user files `__STDC__' will always expand to 1.
  
   -- C Target Hook: const char * TARGET_C_PREINCLUDE (void)
!      Define this hook to return the name of a header file to be
!      included at the start of all compilations, as if it had been
!      included with `#include <FILE>'.  If this hook returns `NULL', or
!      is not defined, or the header is not found, or if the user
!      specifies `-ffreestanding' or `-nostdinc', no header is included.
  
!      This hook can be used together with a header provided by the
!      system C library to implement ISO C requirements for certain
!      macros to be predefined that describe properties of the whole
!      implementation rather than just the compiler.
  
   -- C Target Hook: bool TARGET_CXX_IMPLICIT_EXTERN_C (const char*)
       Define this hook to add target-specific C++ implicit extern C
!      functions. If this function returns true for the name of a
       file-scope function, that function implicitly gets extern "C"
!      linkage rather than whatever language linkage the declaration
!      would normally have.  An example of such function is WinMain on
!      Win32 targets.
  
   -- Macro: NO_IMPLICIT_EXTERN_C
!      Define this macro if the system header files support C++ as well
!      as C.  This macro inhibits the usual method of using system header
       files in C++, which is to pretend that the file's contents are
!      enclosed in `extern "C" {...}'.
  
   -- Macro: REGISTER_TARGET_PRAGMAS ()
       Define this macro if you want to implement any target-specific
       pragmas.  If defined, it is a C expression which makes a series of
!      calls to `c_register_pragma' or `c_register_pragma_with_expansion'
       for each pragma.  The macro may also do any setup required for the
       pragmas.
  
!      The primary reason to define this macro is to provide
!      compatibility with other compilers for the same target.  In
!      general, we discourage definition of target-specific pragmas for
!      GCC.
  
       If the pragma can be implemented by attributes then you should
!      consider defining the target hook `TARGET_INSERT_ATTRIBUTES' as
       well.
  
       Preprocessor macros that appear on pragma lines are not expanded.
!      All `#pragma' directives that do not match any registered pragma
       are silently ignored, unless the user specifies
!      `-Wunknown-pragmas'.
  
   -- Function: void c_register_pragma (const char *SPACE, const char
            *NAME, void (*CALLBACK) (struct cpp_reader *))
   -- Function: void c_register_pragma_with_expansion (const char *SPACE,
            const char *NAME, void (*CALLBACK) (struct cpp_reader *))
!      Each call to `c_register_pragma' or
!      `c_register_pragma_with_expansion' establishes one pragma.  The
       CALLBACK routine will be called when the preprocessor encounters a
       pragma of the form
  
            #pragma [SPACE] NAME ...
  
!      SPACE is the case-sensitive namespace of the pragma, or `NULL' to
       put the pragma in the global namespace.  The callback routine
       receives PFILE as its first argument, which can be passed on to
!      cpplib's functions if necessary.  You can lex tokens after the
!      NAME by calling `pragma_lex'.  Tokens that are not read by the
!      callback will be silently ignored.  The end of the line is
!      indicated by a token of type `CPP_EOF'.  Macro expansion occurs on
!      the arguments of pragmas registered with
!      `c_register_pragma_with_expansion' but not on the arguments of
!      pragmas registered with `c_register_pragma'.
  
!      Note that the use of `pragma_lex' is specific to the C and C++
       compilers.  It will not work in the Java or Fortran compilers, or
!      any other language compilers for that matter.  Thus if
!      `pragma_lex' is going to be called from target-specific code, it
!      must only be done so when building the C and C++ compilers.  This
!      can be done by defining the variables `c_target_objs' and
!      `cxx_target_objs' in the target entry in the `config.gcc' file.
!      These variables should name the target-specific, language-specific
!      object file which contains the code that uses `pragma_lex'.  Note
!      it will also be necessary to add a rule to the makefile fragment
!      pointed to by `tmake_file' that shows how to build this object
!      file.
  
   -- Macro: HANDLE_PRAGMA_PACK_WITH_EXPANSION
       Define this macro if macros should be expanded in the arguments of
!      `#pragma pack'.
  
   -- Macro: TARGET_DEFAULT_PACK_STRUCT
       If your target requires a structure packing default other than 0
       (meaning the machine default), define this macro to the necessary
!      value (in bytes).  This must be a value that would also be valid
!      to use with `#pragma pack()' (that is, a small power of two).
  
   -- Macro: DOLLARS_IN_IDENTIFIERS
!      Define this macro to control use of the character `$' in
!      identifier names for the C family of languages.  0 means `$' is
!      not allowed by default; 1 means it is allowed.  1 is the default;
!      there is no need to define this macro in that case.
  
   -- Macro: INSN_SETS_ARE_DELAYED (INSN)
       Define this macro as a C expression that is nonzero if it is safe
       for the delay slot scheduler to place instructions in the delay
       slot of INSN, even if they appear to use a resource set or
!      clobbered in INSN.  INSN is always a `jump_insn' or an `insn'; GCC
!      knows that every `call_insn' has this behavior.  On machines where
!      some `insn' or `jump_insn' is really a function call and hence has
       this behavior, you should define this macro.
  
       You need not define this macro if it would always return zero.
--- 37901,38039 ----
   -- Macro: Pmode
       An alias for the machine mode for pointers.  On most machines,
       define this to be the integer mode corresponding to the width of a
!      hardware pointer; 'SImode' on 32-bit machine or 'DImode' on 64-bit
       machines.  On some machines you must define this to be one of the
!      partial integer modes, such as 'PSImode'.
  
!      The width of 'Pmode' must be at least as large as the value of
!      'POINTER_SIZE'.  If it is not equal, you must define the macro
!      'POINTERS_EXTEND_UNSIGNED' to specify how pointers are extended to
!      'Pmode'.
  
   -- Macro: FUNCTION_MODE
       An alias for the machine mode used for memory references to
!      functions being called, in 'call' RTL expressions.  On most CISC
       machines, where an instruction can begin at any byte address, this
!      should be 'QImode'.  On most RISC machines, where all instructions
       have fixed size and alignment, this should be a mode with the same
       size and alignment as the machine instruction words - typically
!      'SImode' or 'HImode'.
  
   -- Macro: STDC_0_IN_SYSTEM_HEADERS
!      In normal operation, the preprocessor expands '__STDC__' to the
       constant 1, to signify that GCC conforms to ISO Standard C.  On
       some hosts, like Solaris, the system compiler uses a different
!      convention, where '__STDC__' is normally 0, but is 1 if the user
       specifies strict conformance to the C Standard.
  
!      Defining 'STDC_0_IN_SYSTEM_HEADERS' makes GNU CPP follows the host
!      convention when processing system header files, but when processing
!      user files '__STDC__' will always expand to 1.
  
   -- C Target Hook: const char * TARGET_C_PREINCLUDE (void)
!      Define this hook to return the name of a header file to be included
!      at the start of all compilations, as if it had been included with
!      '#include <FILE>'.  If this hook returns 'NULL', or is not defined,
!      or the header is not found, or if the user specifies
!      '-ffreestanding' or '-nostdinc', no header is included.
  
!      This hook can be used together with a header provided by the system
!      C library to implement ISO C requirements for certain macros to be
!      predefined that describe properties of the whole implementation
!      rather than just the compiler.
  
   -- C Target Hook: bool TARGET_CXX_IMPLICIT_EXTERN_C (const char*)
       Define this hook to add target-specific C++ implicit extern C
!      functions.  If this function returns true for the name of a
       file-scope function, that function implicitly gets extern "C"
!      linkage rather than whatever language linkage the declaration would
!      normally have.  An example of such function is WinMain on Win32
!      targets.
  
   -- Macro: NO_IMPLICIT_EXTERN_C
!      Define this macro if the system header files support C++ as well as
!      C.  This macro inhibits the usual method of using system header
       files in C++, which is to pretend that the file's contents are
!      enclosed in 'extern "C" {...}'.
  
   -- Macro: REGISTER_TARGET_PRAGMAS ()
       Define this macro if you want to implement any target-specific
       pragmas.  If defined, it is a C expression which makes a series of
!      calls to 'c_register_pragma' or 'c_register_pragma_with_expansion'
       for each pragma.  The macro may also do any setup required for the
       pragmas.
  
!      The primary reason to define this macro is to provide compatibility
!      with other compilers for the same target.  In general, we
!      discourage definition of target-specific pragmas for GCC.
  
       If the pragma can be implemented by attributes then you should
!      consider defining the target hook 'TARGET_INSERT_ATTRIBUTES' as
       well.
  
       Preprocessor macros that appear on pragma lines are not expanded.
!      All '#pragma' directives that do not match any registered pragma
       are silently ignored, unless the user specifies
!      '-Wunknown-pragmas'.
  
   -- Function: void c_register_pragma (const char *SPACE, const char
            *NAME, void (*CALLBACK) (struct cpp_reader *))
   -- Function: void c_register_pragma_with_expansion (const char *SPACE,
            const char *NAME, void (*CALLBACK) (struct cpp_reader *))
! 
!      Each call to 'c_register_pragma' or
!      'c_register_pragma_with_expansion' establishes one pragma.  The
       CALLBACK routine will be called when the preprocessor encounters a
       pragma of the form
  
            #pragma [SPACE] NAME ...
  
!      SPACE is the case-sensitive namespace of the pragma, or 'NULL' to
       put the pragma in the global namespace.  The callback routine
       receives PFILE as its first argument, which can be passed on to
!      cpplib's functions if necessary.  You can lex tokens after the NAME
!      by calling 'pragma_lex'.  Tokens that are not read by the callback
!      will be silently ignored.  The end of the line is indicated by a
!      token of type 'CPP_EOF'.  Macro expansion occurs on the arguments
!      of pragmas registered with 'c_register_pragma_with_expansion' but
!      not on the arguments of pragmas registered with
!      'c_register_pragma'.
  
!      Note that the use of 'pragma_lex' is specific to the C and C++
       compilers.  It will not work in the Java or Fortran compilers, or
!      any other language compilers for that matter.  Thus if 'pragma_lex'
!      is going to be called from target-specific code, it must only be
!      done so when building the C and C++ compilers.  This can be done by
!      defining the variables 'c_target_objs' and 'cxx_target_objs' in the
!      target entry in the 'config.gcc' file.  These variables should name
!      the target-specific, language-specific object file which contains
!      the code that uses 'pragma_lex'.  Note it will also be necessary to
!      add a rule to the makefile fragment pointed to by 'tmake_file' that
!      shows how to build this object file.
  
   -- Macro: HANDLE_PRAGMA_PACK_WITH_EXPANSION
       Define this macro if macros should be expanded in the arguments of
!      '#pragma pack'.
  
   -- Macro: TARGET_DEFAULT_PACK_STRUCT
       If your target requires a structure packing default other than 0
       (meaning the machine default), define this macro to the necessary
!      value (in bytes).  This must be a value that would also be valid to
!      use with '#pragma pack()' (that is, a small power of two).
  
   -- Macro: DOLLARS_IN_IDENTIFIERS
!      Define this macro to control use of the character '$' in identifier
!      names for the C family of languages.  0 means '$' is not allowed by
!      default; 1 means it is allowed.  1 is the default; there is no need
!      to define this macro in that case.
  
   -- Macro: INSN_SETS_ARE_DELAYED (INSN)
       Define this macro as a C expression that is nonzero if it is safe
       for the delay slot scheduler to place instructions in the delay
       slot of INSN, even if they appear to use a resource set or
!      clobbered in INSN.  INSN is always a 'jump_insn' or an 'insn'; GCC
!      knows that every 'call_insn' has this behavior.  On machines where
!      some 'insn' or 'jump_insn' is really a function call and hence has
       this behavior, you should define this macro.
  
       You need not define this macro if it would always return zero.
*************** Here are several miscellaneous parameter
*** 38475,38493 ****
       Define this macro as a C expression that is nonzero if it is safe
       for the delay slot scheduler to place instructions in the delay
       slot of INSN, even if they appear to set or clobber a resource
!      referenced in INSN.  INSN is always a `jump_insn' or an `insn'.
!      On machines where some `insn' or `jump_insn' is really a function
!      call and its operands are registers whose use is actually in the
!      subroutine it calls, you should define this macro.  Doing so
!      allows the delay slot scheduler to move instructions which copy
!      arguments into the argument registers into the delay slot of INSN.
  
       You need not define this macro if it would always return zero.
  
   -- Macro: MULTIPLE_SYMBOL_SPACES
       Define this macro as a C expression that is nonzero if, in some
!      cases, global symbols from one translation unit may not be bound
!      to undefined symbols in another translation unit without user
       intervention.  For instance, under Microsoft Windows symbols must
       be explicitly imported from shared libraries (DLLs).
  
--- 38042,38060 ----
       Define this macro as a C expression that is nonzero if it is safe
       for the delay slot scheduler to place instructions in the delay
       slot of INSN, even if they appear to set or clobber a resource
!      referenced in INSN.  INSN is always a 'jump_insn' or an 'insn'.  On
!      machines where some 'insn' or 'jump_insn' is really a function call
!      and its operands are registers whose use is actually in the
!      subroutine it calls, you should define this macro.  Doing so allows
!      the delay slot scheduler to move instructions which copy arguments
!      into the argument registers into the delay slot of INSN.
  
       You need not define this macro if it would always return zero.
  
   -- Macro: MULTIPLE_SYMBOL_SPACES
       Define this macro as a C expression that is nonzero if, in some
!      cases, global symbols from one translation unit may not be bound to
!      undefined symbols in another translation unit without user
       intervention.  For instance, under Microsoft Windows symbols must
       be explicitly imported from shared libraries (DLLs).
  
*************** Here are several miscellaneous parameter
*** 38498,38578 ****
            CLOBBERS, HARD_REG_SET& CLOBBERED_REGS)
       This target hook may add "clobbers" to CLOBBERS and CLOBBERED_REGS
       for any hard regs the port wishes to automatically clobber for an
!      asm.  The OUTPUTS and INPUTS may be inspected to avoid clobbering
!      a register that is already used by the asm.
  
!      It may modify the OUTPUTS, INPUTS, and CONSTRAINTS as necessary
!      for other pre-processing.  In this case the return value is a
!      sequence of insns to emit after the asm.
  
   -- Macro: MATH_LIBRARY
!      Define this macro as a C string constant for the linker argument
!      to link in the system math library, minus the initial `"-l"', or
!      `""' if the target does not have a separate math library.
  
!      You need only define this macro if the default of `"m"' is wrong.
  
   -- Macro: LIBRARY_PATH_ENV
       Define this macro as a C string constant for the environment
       variable that specifies where the linker should look for libraries.
  
!      You need only define this macro if the default of `"LIBRARY_PATH"'
       is wrong.
  
   -- Macro: TARGET_POSIX_IO
       Define this macro if the target supports the following POSIX file
!      functions, access, mkdir and  file locking with fcntl / F_SETLKW.
!      Defining `TARGET_POSIX_IO' will enable the test coverage code to
       use file locking when exiting a program, which avoids race
!      conditions if the program has forked. It will also create
       directories at run-time for cross-profiling.
  
   -- Macro: MAX_CONDITIONAL_EXECUTE
       A C expression for the maximum number of instructions to execute
       via conditional execution instructions instead of a branch.  A
!      value of `BRANCH_COST'+1 is the default if the machine does not
!      use cc0, and 1 if it does use cc0.
  
   -- Macro: IFCVT_MODIFY_TESTS (CE_INFO, TRUE_EXPR, FALSE_EXPR)
!      Used if the target needs to perform machine-dependent
!      modifications on the conditionals used for turning basic blocks
!      into conditionally executed code.  CE_INFO points to a data
!      structure, `struct ce_if_block', which contains information about
!      the currently processed blocks.  TRUE_EXPR and FALSE_EXPR are the
!      tests that are used for converting the then-block and the
!      else-block, respectively.  Set either TRUE_EXPR or FALSE_EXPR to a
!      null pointer if the tests cannot be converted.
  
   -- Macro: IFCVT_MODIFY_MULTIPLE_TESTS (CE_INFO, BB, TRUE_EXPR,
            FALSE_EXPR)
!      Like `IFCVT_MODIFY_TESTS', but used when converting more
!      complicated if-statements into conditions combined by `and' and
!      `or' operations.  BB contains the basic block that contains the
       test that is currently being processed and about to be turned into
       a condition.
  
   -- Macro: IFCVT_MODIFY_INSN (CE_INFO, PATTERN, INSN)
       A C expression to modify the PATTERN of an INSN that is to be
       converted to conditional execution format.  CE_INFO points to a
!      data structure, `struct ce_if_block', which contains information
       about the currently processed blocks.
  
   -- Macro: IFCVT_MODIFY_FINAL (CE_INFO)
!      A C expression to perform any final machine dependent
!      modifications in converting code to conditional execution.  The
!      involved basic blocks can be found in the `struct ce_if_block'
!      structure that is pointed to by CE_INFO.
  
   -- Macro: IFCVT_MODIFY_CANCEL (CE_INFO)
       A C expression to cancel any machine dependent modifications in
       converting code to conditional execution.  The involved basic
!      blocks can be found in the `struct ce_if_block' structure that is
       pointed to by CE_INFO.
  
   -- Macro: IFCVT_MACHDEP_INIT (CE_INFO)
       A C expression to initialize any machine specific data for
!      if-conversion of the if-block in the `struct ce_if_block'
!      structure that is pointed to by CE_INFO.
  
   -- Target Hook: void TARGET_MACHINE_DEPENDENT_REORG (void)
       If non-null, this hook performs a target-specific pass over the
--- 38065,38146 ----
            CLOBBERS, HARD_REG_SET& CLOBBERED_REGS)
       This target hook may add "clobbers" to CLOBBERS and CLOBBERED_REGS
       for any hard regs the port wishes to automatically clobber for an
!      asm.  The OUTPUTS and INPUTS may be inspected to avoid clobbering a
!      register that is already used by the asm.
  
!      It may modify the OUTPUTS, INPUTS, and CONSTRAINTS as necessary for
!      other pre-processing.  In this case the return value is a sequence
!      of insns to emit after the asm.
  
   -- Macro: MATH_LIBRARY
!      Define this macro as a C string constant for the linker argument to
!      link in the system math library, minus the initial '"-l"', or '""'
!      if the target does not have a separate math library.
  
!      You need only define this macro if the default of '"m"' is wrong.
  
   -- Macro: LIBRARY_PATH_ENV
       Define this macro as a C string constant for the environment
       variable that specifies where the linker should look for libraries.
  
!      You need only define this macro if the default of '"LIBRARY_PATH"'
       is wrong.
  
   -- Macro: TARGET_POSIX_IO
       Define this macro if the target supports the following POSIX file
!      functions, access, mkdir and file locking with fcntl / F_SETLKW.
!      Defining 'TARGET_POSIX_IO' will enable the test coverage code to
       use file locking when exiting a program, which avoids race
!      conditions if the program has forked.  It will also create
       directories at run-time for cross-profiling.
  
   -- Macro: MAX_CONDITIONAL_EXECUTE
+ 
       A C expression for the maximum number of instructions to execute
       via conditional execution instructions instead of a branch.  A
!      value of 'BRANCH_COST'+1 is the default if the machine does not use
!      cc0, and 1 if it does use cc0.
  
   -- Macro: IFCVT_MODIFY_TESTS (CE_INFO, TRUE_EXPR, FALSE_EXPR)
!      Used if the target needs to perform machine-dependent modifications
!      on the conditionals used for turning basic blocks into
!      conditionally executed code.  CE_INFO points to a data structure,
!      'struct ce_if_block', which contains information about the
!      currently processed blocks.  TRUE_EXPR and FALSE_EXPR are the tests
!      that are used for converting the then-block and the else-block,
!      respectively.  Set either TRUE_EXPR or FALSE_EXPR to a null pointer
!      if the tests cannot be converted.
  
   -- Macro: IFCVT_MODIFY_MULTIPLE_TESTS (CE_INFO, BB, TRUE_EXPR,
            FALSE_EXPR)
!      Like 'IFCVT_MODIFY_TESTS', but used when converting more
!      complicated if-statements into conditions combined by 'and' and
!      'or' operations.  BB contains the basic block that contains the
       test that is currently being processed and about to be turned into
       a condition.
  
   -- Macro: IFCVT_MODIFY_INSN (CE_INFO, PATTERN, INSN)
       A C expression to modify the PATTERN of an INSN that is to be
       converted to conditional execution format.  CE_INFO points to a
!      data structure, 'struct ce_if_block', which contains information
       about the currently processed blocks.
  
   -- Macro: IFCVT_MODIFY_FINAL (CE_INFO)
!      A C expression to perform any final machine dependent modifications
!      in converting code to conditional execution.  The involved basic
!      blocks can be found in the 'struct ce_if_block' structure that is
!      pointed to by CE_INFO.
  
   -- Macro: IFCVT_MODIFY_CANCEL (CE_INFO)
       A C expression to cancel any machine dependent modifications in
       converting code to conditional execution.  The involved basic
!      blocks can be found in the 'struct ce_if_block' structure that is
       pointed to by CE_INFO.
  
   -- Macro: IFCVT_MACHDEP_INIT (CE_INFO)
       A C expression to initialize any machine specific data for
!      if-conversion of the if-block in the 'struct ce_if_block' structure
!      that is pointed to by CE_INFO.
  
   -- Target Hook: void TARGET_MACHINE_DEPENDENT_REORG (void)
       If non-null, this hook performs a target-specific pass over the
*************** Here are several miscellaneous parameter
*** 38594,38609 ****
       functions that need to be defined.  It should be a function that
       performs the necessary setup.
  
!      Machine specific built-in functions can be useful to expand
!      special machine instructions that would otherwise not normally be
!      generated because they have no equivalent in the source language
!      (for example, SIMD vector instructions or prefetch instructions).
  
       To create a built-in function, call the function
!      `lang_hooks.builtin_function' which is defined by the language
       front end.  You can use any type nodes set up by
!      `build_common_tree_nodes'; only language front ends that use those
!      two functions will call `TARGET_INIT_BUILTINS'.
  
   -- Target Hook: tree TARGET_BUILTIN_DECL (unsigned CODE, bool
            INITIALIZE_P)
--- 38162,38177 ----
       functions that need to be defined.  It should be a function that
       performs the necessary setup.
  
!      Machine specific built-in functions can be useful to expand special
!      machine instructions that would otherwise not normally be generated
!      because they have no equivalent in the source language (for
!      example, SIMD vector instructions or prefetch instructions).
  
       To create a built-in function, call the function
!      'lang_hooks.builtin_function' which is defined by the language
       front end.  You can use any type nodes set up by
!      'build_common_tree_nodes'; only language front ends that use those
!      two functions will call 'TARGET_INIT_BUILTINS'.
  
   -- Target Hook: tree TARGET_BUILTIN_DECL (unsigned CODE, bool
            INITIALIZE_P)
*************** Here are several miscellaneous parameter
*** 38612,38624 ****
       returns the builtin function declaration for the builtin function
       code CODE.  If there is no such builtin and it cannot be
       initialized at this time if INITIALIZE_P is true the function
!      should return `NULL_TREE'.  If CODE is out of range the function
!      should return `error_mark_node'.
  
   -- Target Hook: rtx TARGET_EXPAND_BUILTIN (tree EXP, rtx TARGET, rtx
            SUBTARGET, machine_mode MODE, int IGNORE)
       Expand a call to a machine specific built-in function that was set
!      up by `TARGET_INIT_BUILTINS'.  EXP is the expression for the
       function call; the result should go to TARGET if that is
       convenient, and have mode MODE if that is convenient.  SUBTARGET
       may be used as the target for computing one of EXP's operands.
--- 38180,38193 ----
       returns the builtin function declaration for the builtin function
       code CODE.  If there is no such builtin and it cannot be
       initialized at this time if INITIALIZE_P is true the function
!      should return 'NULL_TREE'.  If CODE is out of range the function
!      should return 'error_mark_node'.
  
   -- Target Hook: rtx TARGET_EXPAND_BUILTIN (tree EXP, rtx TARGET, rtx
            SUBTARGET, machine_mode MODE, int IGNORE)
+ 
       Expand a call to a machine specific built-in function that was set
!      up by 'TARGET_INIT_BUILTINS'.  EXP is the expression for the
       function call; the result should go to TARGET if that is
       convenient, and have mode MODE if that is convenient.  SUBTARGET
       may be used as the target for computing one of EXP's operands.
*************** Here are several miscellaneous parameter
*** 38631,38763 ****
       return fndecl of function implementing generic builtin whose code
       is passed in FCODE.  Currently following built-in functions are
       obtained using this hook:
- 
        -- Built-in Function: __bounds_type __chkp_bndmk (const void *LB,
                 size_t SIZE)
!           Function code - BUILT_IN_CHKP_BNDMK.  This built-in function
!           is used by Pointer Bounds Checker to create bound values.  LB
            holds low bound of the resulting bounds.  SIZE holds size of
            created bounds.
  
        -- Built-in Function: void __chkp_bndstx (const void *PTR,
                 __bounds_type B, const void **LOC)
!           Function code - `BUILT_IN_CHKP_BNDSTX'.  This built-in
            function is used by Pointer Bounds Checker to store bounds B
            for pointer PTR when PTR is stored by address LOC.
  
        -- Built-in Function: __bounds_type __chkp_bndldx (const void
                 **LOC, const void *PTR)
!           Function code - `BUILT_IN_CHKP_BNDLDX'.  This built-in
            function is used by Pointer Bounds Checker to get bounds of
            pointer PTR loaded by address LOC.
  
        -- Built-in Function: void __chkp_bndcl (const void *PTR,
                 __bounds_type B)
!           Function code - `BUILT_IN_CHKP_BNDCL'.  This built-in
!           function is used by Pointer Bounds Checker to perform check
!           for pointer PTR against lower bound of bounds B.
  
        -- Built-in Function: void __chkp_bndcu (const void *PTR,
                 __bounds_type B)
!           Function code - `BUILT_IN_CHKP_BNDCU'.  This built-in
!           function is used by Pointer Bounds Checker to perform check
!           for pointer PTR against upper bound of bounds B.
  
        -- Built-in Function: __bounds_type __chkp_bndret (void *PTR)
!           Function code - `BUILT_IN_CHKP_BNDRET'.  This built-in
            function is used by Pointer Bounds Checker to obtain bounds
            returned by a call statement.  PTR passed to built-in is
!           `SSA_NAME' returned by the call.
  
        -- Built-in Function: __bounds_type __chkp_intersect
                 (__bounds_type B1, __bounds_type B2)
!           Function code - `BUILT_IN_CHKP_INTERSECT'.  This built-in
            function returns intersection of bounds B1 and B2.
  
        -- Built-in Function: __bounds_type __chkp_narrow (const void
                 *PTR, __bounds_type B, size_t S)
!           Function code - `BUILT_IN_CHKP_NARROW'.  This built-in
            function returns intersection of bounds B and [PTR, PTR + S -
!           `1'].
  
        -- Built-in Function: size_t __chkp_sizeof (const void *PTR)
!           Function code - `BUILT_IN_CHKP_SIZEOF'.  This built-in
!           function returns size of object referenced by PTR. PTR is
!           always `ADDR_EXPR' of `VAR_DECL'.  This built-in is used by
            Pointer Bounds Checker when bounds of object cannot be
!           computed statically (e.g. object has incomplete type).
  
        -- Built-in Function: const void *__chkp_extract_lower
                 (__bounds_type B)
!           Function code - `BUILT_IN_CHKP_EXTRACT_LOWER'.  This built-in
            function returns lower bound of bounds B.
  
        -- Built-in Function: const void *__chkp_extract_upper
                 (__bounds_type B)
!           Function code - `BUILT_IN_CHKP_EXTRACT_UPPER'.  This built-in
            function returns upper bound of bounds B.
- 
   -- Target Hook: tree TARGET_CHKP_BOUND_TYPE (void)
       Return type to be used for bounds
- 
   -- Target Hook: enum machine_mode TARGET_CHKP_BOUND_MODE (void)
       Return mode to be used for bounds.
- 
   -- Target Hook: tree TARGET_CHKP_MAKE_BOUNDS_CONSTANT (HOST_WIDE_INT
            LB, HOST_WIDE_INT UB)
       Return constant used to statically initialize constant bounds with
       specified lower bound LB and upper bounds UB.
- 
   -- Target Hook: int TARGET_CHKP_INITIALIZE_BOUNDS (tree VAR, tree LB,
            tree UB, tree *STMTS)
       Generate a list of statements STMTS to initialize pointer bounds
!      variable VAR with bounds LB and UB.  Return the number of
!      generated statements.
  
   -- Target Hook: tree TARGET_RESOLVE_OVERLOADED_BUILTIN (unsigned int
            LOC, tree FNDECL, void *ARGLIST)
       Select a replacement for a machine specific built-in function that
!      was set up by `TARGET_INIT_BUILTINS'.  This is done _before_
       regular type checking, and so allows the target to implement a
       crude form of function overloading.  FNDECL is the declaration of
       the built-in function.  ARGLIST is the list of arguments passed to
       the built-in function.  The result is a complete expression that
!      implements the operation, usually another `CALL_EXPR'.  ARGLIST
!      really has type `VEC(tree,gc)*'
  
!  -- Target Hook: tree TARGET_FOLD_BUILTIN (tree FNDECL, int N_ARGS,
!           tree *ARGP, bool IGNORE)
!      Fold a call to a machine specific built-in function that was set
!      up by `TARGET_INIT_BUILTINS'.  FNDECL is the declaration of the
!      built-in function.  N_ARGS is the number of arguments passed to
!      the function; the arguments themselves are pointed to by ARGP.
!      The result is another tree, valid for both GIMPLE and GENERIC,
       containing a simplified expression for the call's result.  If
       IGNORE is true the value will be ignored.
  
   -- Target Hook: bool TARGET_GIMPLE_FOLD_BUILTIN (gimple_stmt_iterator
            *GSI)
       Fold a call to a machine specific built-in function that was set up
!      by `TARGET_INIT_BUILTINS'.  GSI points to the gimple statement
       holding the function call.  Returns true if any change was made to
       the GIMPLE stream.
  
   -- Target Hook: int TARGET_COMPARE_VERSION_PRIORITY (tree DECL1, tree
            DECL2)
!      This hook is used to compare the target attributes in two
!      functions to determine which function's features get higher
!      priority.  This is used during function multi-versioning to figure
!      out the order in which two versions must be dispatched.  A
!      function version with a higher priority is checked for dispatching
!      earlier.  DECL1 and DECL2 are  the two function decls that will be
!      compared.
  
   -- Target Hook: tree TARGET_GET_FUNCTION_VERSIONS_DISPATCHER (void
            *DECL)
       This hook is used to get the dispatcher function for a set of
!      function versions.  The dispatcher function is called to invoke
!      the right function version at run-time. DECL is one version from a
!      set of semantically identical versions.
  
   -- Target Hook: tree TARGET_GENERATE_VERSION_DISPATCHER_BODY (void
            *ARG)
--- 38200,38326 ----
       return fndecl of function implementing generic builtin whose code
       is passed in FCODE.  Currently following built-in functions are
       obtained using this hook:
        -- Built-in Function: __bounds_type __chkp_bndmk (const void *LB,
                 size_t SIZE)
!           Function code - BUILT_IN_CHKP_BNDMK. This built-in function is
!           used by Pointer Bounds Checker to create bound values.  LB
            holds low bound of the resulting bounds.  SIZE holds size of
            created bounds.
  
        -- Built-in Function: void __chkp_bndstx (const void *PTR,
                 __bounds_type B, const void **LOC)
!           Function code - 'BUILT_IN_CHKP_BNDSTX'.  This built-in
            function is used by Pointer Bounds Checker to store bounds B
            for pointer PTR when PTR is stored by address LOC.
  
        -- Built-in Function: __bounds_type __chkp_bndldx (const void
                 **LOC, const void *PTR)
!           Function code - 'BUILT_IN_CHKP_BNDLDX'.  This built-in
            function is used by Pointer Bounds Checker to get bounds of
            pointer PTR loaded by address LOC.
  
        -- Built-in Function: void __chkp_bndcl (const void *PTR,
                 __bounds_type B)
!           Function code - 'BUILT_IN_CHKP_BNDCL'.  This built-in function
!           is used by Pointer Bounds Checker to perform check for pointer
!           PTR against lower bound of bounds B.
  
        -- Built-in Function: void __chkp_bndcu (const void *PTR,
                 __bounds_type B)
!           Function code - 'BUILT_IN_CHKP_BNDCU'.  This built-in function
!           is used by Pointer Bounds Checker to perform check for pointer
!           PTR against upper bound of bounds B.
  
        -- Built-in Function: __bounds_type __chkp_bndret (void *PTR)
!           Function code - 'BUILT_IN_CHKP_BNDRET'.  This built-in
            function is used by Pointer Bounds Checker to obtain bounds
            returned by a call statement.  PTR passed to built-in is
!           'SSA_NAME' returned by the call.
  
        -- Built-in Function: __bounds_type __chkp_intersect
                 (__bounds_type B1, __bounds_type B2)
!           Function code - 'BUILT_IN_CHKP_INTERSECT'.  This built-in
            function returns intersection of bounds B1 and B2.
  
        -- Built-in Function: __bounds_type __chkp_narrow (const void
                 *PTR, __bounds_type B, size_t S)
!           Function code - 'BUILT_IN_CHKP_NARROW'.  This built-in
            function returns intersection of bounds B and [PTR, PTR + S -
!           '1'].
  
        -- Built-in Function: size_t __chkp_sizeof (const void *PTR)
!           Function code - 'BUILT_IN_CHKP_SIZEOF'.  This built-in
!           function returns size of object referenced by PTR.  PTR is
!           always 'ADDR_EXPR' of 'VAR_DECL'.  This built-in is used by
            Pointer Bounds Checker when bounds of object cannot be
!           computed statically (e.g.  object has incomplete type).
  
        -- Built-in Function: const void *__chkp_extract_lower
                 (__bounds_type B)
!           Function code - 'BUILT_IN_CHKP_EXTRACT_LOWER'.  This built-in
            function returns lower bound of bounds B.
  
        -- Built-in Function: const void *__chkp_extract_upper
                 (__bounds_type B)
!           Function code - 'BUILT_IN_CHKP_EXTRACT_UPPER'.  This built-in
            function returns upper bound of bounds B.
   -- Target Hook: tree TARGET_CHKP_BOUND_TYPE (void)
       Return type to be used for bounds
   -- Target Hook: enum machine_mode TARGET_CHKP_BOUND_MODE (void)
       Return mode to be used for bounds.
   -- Target Hook: tree TARGET_CHKP_MAKE_BOUNDS_CONSTANT (HOST_WIDE_INT
            LB, HOST_WIDE_INT UB)
       Return constant used to statically initialize constant bounds with
       specified lower bound LB and upper bounds UB.
   -- Target Hook: int TARGET_CHKP_INITIALIZE_BOUNDS (tree VAR, tree LB,
            tree UB, tree *STMTS)
       Generate a list of statements STMTS to initialize pointer bounds
!      variable VAR with bounds LB and UB.  Return the number of generated
!      statements.
  
   -- Target Hook: tree TARGET_RESOLVE_OVERLOADED_BUILTIN (unsigned int
            LOC, tree FNDECL, void *ARGLIST)
       Select a replacement for a machine specific built-in function that
!      was set up by 'TARGET_INIT_BUILTINS'.  This is done _before_
       regular type checking, and so allows the target to implement a
       crude form of function overloading.  FNDECL is the declaration of
       the built-in function.  ARGLIST is the list of arguments passed to
       the built-in function.  The result is a complete expression that
!      implements the operation, usually another 'CALL_EXPR'.  ARGLIST
!      really has type 'VEC(tree,gc)*'
  
!  -- Target Hook: tree TARGET_FOLD_BUILTIN (tree FNDECL, int N_ARGS, tree
!           *ARGP, bool IGNORE)
!      Fold a call to a machine specific built-in function that was set up
!      by 'TARGET_INIT_BUILTINS'.  FNDECL is the declaration of the
!      built-in function.  N_ARGS is the number of arguments passed to the
!      function; the arguments themselves are pointed to by ARGP.  The
!      result is another tree, valid for both GIMPLE and GENERIC,
       containing a simplified expression for the call's result.  If
       IGNORE is true the value will be ignored.
  
   -- Target Hook: bool TARGET_GIMPLE_FOLD_BUILTIN (gimple_stmt_iterator
            *GSI)
       Fold a call to a machine specific built-in function that was set up
!      by 'TARGET_INIT_BUILTINS'.  GSI points to the gimple statement
       holding the function call.  Returns true if any change was made to
       the GIMPLE stream.
  
   -- Target Hook: int TARGET_COMPARE_VERSION_PRIORITY (tree DECL1, tree
            DECL2)
!      This hook is used to compare the target attributes in two functions
!      to determine which function's features get higher priority.  This
!      is used during function multi-versioning to figure out the order in
!      which two versions must be dispatched.  A function version with a
!      higher priority is checked for dispatching earlier.  DECL1 and
!      DECL2 are the two function decls that will be compared.
  
   -- Target Hook: tree TARGET_GET_FUNCTION_VERSIONS_DISPATCHER (void
            *DECL)
       This hook is used to get the dispatcher function for a set of
!      function versions.  The dispatcher function is called to invoke the
!      right function version at run-time.  DECL is one version from a set
!      of semantically identical versions.
  
   -- Target Hook: tree TARGET_GENERATE_VERSION_DISPATCHER_BODY (void
            *ARG)
*************** Here are several miscellaneous parameter
*** 38770,38795 ****
            &ITERATIONS, const widest_int &ITERATIONS_MAX, unsigned int
            LOOP_DEPTH, bool ENTERED_AT_TOP)
       Return true if it is possible to use low-overhead loops
!      (`doloop_end' and `doloop_begin') for a particular loop.
!      ITERATIONS gives the exact number of iterations, or 0 if not
!      known.  ITERATIONS_MAX gives the maximum number of iterations, or
!      0 if not known.  LOOP_DEPTH is the nesting depth of the loop, with
!      1 for innermost loops, 2 for loops that contain innermost loops,
!      and so on.  ENTERED_AT_TOP is true if the loop is only entered
!      from the top.
  
!      This hook is only used if `doloop_end' is available.  The default
       implementation returns true.  You can use
!      `can_use_doloop_if_innermost' if the loop must be the innermost,
       and if there are no other restrictions.
  
   -- Target Hook: const char * TARGET_INVALID_WITHIN_DOLOOP (const
            rtx_insn *INSN)
       Take an instruction in INSN and return NULL if it is valid within a
       low-overhead loop, otherwise return a string explaining why doloop
       could not be applied.
  
!      Many targets use special registers for low-overhead looping. For
       any instruction that clobbers these this function should return a
       string indicating the reason why the doloop could not be applied.
       By default, the RTL loop optimizer does not use a present doloop
--- 38333,38359 ----
            &ITERATIONS, const widest_int &ITERATIONS_MAX, unsigned int
            LOOP_DEPTH, bool ENTERED_AT_TOP)
       Return true if it is possible to use low-overhead loops
!      ('doloop_end' and 'doloop_begin') for a particular loop.
!      ITERATIONS gives the exact number of iterations, or 0 if not known.
!      ITERATIONS_MAX gives the maximum number of iterations, or 0 if not
!      known.  LOOP_DEPTH is the nesting depth of the loop, with 1 for
!      innermost loops, 2 for loops that contain innermost loops, and so
!      on.  ENTERED_AT_TOP is true if the loop is only entered from the
!      top.
  
!      This hook is only used if 'doloop_end' is available.  The default
       implementation returns true.  You can use
!      'can_use_doloop_if_innermost' if the loop must be the innermost,
       and if there are no other restrictions.
  
   -- Target Hook: const char * TARGET_INVALID_WITHIN_DOLOOP (const
            rtx_insn *INSN)
+ 
       Take an instruction in INSN and return NULL if it is valid within a
       low-overhead loop, otherwise return a string explaining why doloop
       could not be applied.
  
!      Many targets use special registers for low-overhead looping.  For
       any instruction that clobbers these this function should return a
       string indicating the reason why the doloop could not be applied.
       By default, the RTL loop optimizer does not use a present doloop
*************** Here are several miscellaneous parameter
*** 38797,38881 ****
       instructions.
  
   -- Target Hook: bool TARGET_LEGITIMATE_COMBINED_INSN (rtx_insn *INSN)
!      Take an instruction in INSN and return `false' if the instruction
       is not appropriate as a combination of two or more instructions.
       The default is to accept all instructions.
  
   -- Target Hook: bool TARGET_CAN_FOLLOW_JUMP (const rtx_insn *FOLLOWER,
            const rtx_insn *FOLLOWEE)
!      FOLLOWER and FOLLOWEE are JUMP_INSN instructions;  return true if
!      FOLLOWER may be modified to follow FOLLOWEE;  false, if it can't.
       For example, on some targets, certain kinds of branches can't be
!      made to  follow through a hot/cold partitioning.
  
   -- Target Hook: bool TARGET_COMMUTATIVE_P (const_rtx X, int OUTER_CODE)
!      This target hook returns `true' if X is considered to be
       commutative.  Usually, this is just COMMUTATIVE_P (X), but the HP
       PA doesn't consider PLUS to be commutative inside a MEM.
       OUTER_CODE is the rtx code of the enclosing rtl, if known,
       otherwise it is UNKNOWN.
  
   -- Target Hook: rtx TARGET_ALLOCATE_INITIAL_VALUE (rtx HARD_REG)
       When the initial value of a hard register has been copied in a
       pseudo register, it is often not necessary to actually allocate
!      another register to this pseudo register, because the original
!      hard register or a stack slot it has been saved into can be used.
!      `TARGET_ALLOCATE_INITIAL_VALUE' is called at the start of register
       allocation once for each hard register that had its initial value
!      copied by using `get_func_hard_reg_initial_val' or
!      `get_hard_reg_initial_val'.  Possible values are `NULL_RTX', if
!      you don't want to do any special allocation, a `REG' rtx--that
!      would typically be the hard register itself, if it is known not to
!      be clobbered--or a `MEM'.  If you are returning a `MEM', this is
!      only a hint for the allocator; it might decide to use another
!      register anyways.  You may use `current_function_is_leaf' or
!      `REG_N_SETS' in the hook to determine if the hard register in
!      question will not be clobbered.  The default value of this hook is
!      `NULL', which disables any special allocation.
  
   -- Target Hook: int TARGET_UNSPEC_MAY_TRAP_P (const_rtx X, unsigned
            FLAGS)
!      This target hook returns nonzero if X, an `unspec' or
!      `unspec_volatile' operation, might cause a trap.  Targets can use
!      this hook to enhance precision of analysis for `unspec' and
!      `unspec_volatile' operations.  You may call `may_trap_p_1' to
       analyze inner elements of X in which case FLAGS should be passed
       along.
  
   -- Target Hook: void TARGET_SET_CURRENT_FUNCTION (tree DECL)
       The compiler invokes this hook whenever it changes its current
!      function context (`cfun').  You can define this function if the
       back end needs to perform any initialization or reset actions on a
       per-function basis.  For example, it may be used to implement
       function attributes that affect register usage or code generation
       patterns.  The argument DECL is the declaration for the new
!      function context, and may be null to indicate that the compiler
!      has left a function context and is returning to processing at the
!      top level.  The default hook function does nothing.
  
!      GCC sets `cfun' to a dummy function context during initialization
!      of some parts of the back end.  The hook function is not invoked
!      in this situation; you need not worry about the hook being invoked
       recursively, or when the back end is in a partially-initialized
!      state.  `cfun' might be `NULL' to indicate processing at top level,
       outside of any function scope.
  
   -- Macro: TARGET_OBJECT_SUFFIX
       Define this macro to be a C string representing the suffix for
       object files on your target machine.  If you do not define this
!      macro, GCC will use `.o' as the suffix for object files.
  
   -- Macro: TARGET_EXECUTABLE_SUFFIX
       Define this macro to be a C string representing the suffix to be
!      automatically added to executable files on your target machine.
!      If you do not define this macro, GCC will use the null string as
!      the suffix for executable files.
  
   -- Macro: COLLECT_EXPORT_LIST
!      If defined, `collect2' will scan the individual object files
       specified on its command line and create an export list for the
       linker.  Define this macro for systems like AIX, where the linker
!      discards object files that are not referenced from `main' and uses
       export lists.
  
   -- Macro: MODIFY_JNI_METHOD_CALL (MDECL)
--- 38361,38446 ----
       instructions.
  
   -- Target Hook: bool TARGET_LEGITIMATE_COMBINED_INSN (rtx_insn *INSN)
!      Take an instruction in INSN and return 'false' if the instruction
       is not appropriate as a combination of two or more instructions.
       The default is to accept all instructions.
  
   -- Target Hook: bool TARGET_CAN_FOLLOW_JUMP (const rtx_insn *FOLLOWER,
            const rtx_insn *FOLLOWEE)
!      FOLLOWER and FOLLOWEE are JUMP_INSN instructions; return true if
!      FOLLOWER may be modified to follow FOLLOWEE; false, if it can't.
       For example, on some targets, certain kinds of branches can't be
!      made to follow through a hot/cold partitioning.
  
   -- Target Hook: bool TARGET_COMMUTATIVE_P (const_rtx X, int OUTER_CODE)
!      This target hook returns 'true' if X is considered to be
       commutative.  Usually, this is just COMMUTATIVE_P (X), but the HP
       PA doesn't consider PLUS to be commutative inside a MEM.
       OUTER_CODE is the rtx code of the enclosing rtl, if known,
       otherwise it is UNKNOWN.
  
   -- Target Hook: rtx TARGET_ALLOCATE_INITIAL_VALUE (rtx HARD_REG)
+ 
       When the initial value of a hard register has been copied in a
       pseudo register, it is often not necessary to actually allocate
!      another register to this pseudo register, because the original hard
!      register or a stack slot it has been saved into can be used.
!      'TARGET_ALLOCATE_INITIAL_VALUE' is called at the start of register
       allocation once for each hard register that had its initial value
!      copied by using 'get_func_hard_reg_initial_val' or
!      'get_hard_reg_initial_val'.  Possible values are 'NULL_RTX', if you
!      don't want to do any special allocation, a 'REG' rtx--that would
!      typically be the hard register itself, if it is known not to be
!      clobbered--or a 'MEM'.  If you are returning a 'MEM', this is only
!      a hint for the allocator; it might decide to use another register
!      anyways.  You may use 'current_function_is_leaf' or 'REG_N_SETS' in
!      the hook to determine if the hard register in question will not be
!      clobbered.  The default value of this hook is 'NULL', which
!      disables any special allocation.
  
   -- Target Hook: int TARGET_UNSPEC_MAY_TRAP_P (const_rtx X, unsigned
            FLAGS)
!      This target hook returns nonzero if X, an 'unspec' or
!      'unspec_volatile' operation, might cause a trap.  Targets can use
!      this hook to enhance precision of analysis for 'unspec' and
!      'unspec_volatile' operations.  You may call 'may_trap_p_1' to
       analyze inner elements of X in which case FLAGS should be passed
       along.
  
   -- Target Hook: void TARGET_SET_CURRENT_FUNCTION (tree DECL)
       The compiler invokes this hook whenever it changes its current
!      function context ('cfun').  You can define this function if the
       back end needs to perform any initialization or reset actions on a
       per-function basis.  For example, it may be used to implement
       function attributes that affect register usage or code generation
       patterns.  The argument DECL is the declaration for the new
!      function context, and may be null to indicate that the compiler has
!      left a function context and is returning to processing at the top
!      level.  The default hook function does nothing.
  
!      GCC sets 'cfun' to a dummy function context during initialization
!      of some parts of the back end.  The hook function is not invoked in
!      this situation; you need not worry about the hook being invoked
       recursively, or when the back end is in a partially-initialized
!      state.  'cfun' might be 'NULL' to indicate processing at top level,
       outside of any function scope.
  
   -- Macro: TARGET_OBJECT_SUFFIX
       Define this macro to be a C string representing the suffix for
       object files on your target machine.  If you do not define this
!      macro, GCC will use '.o' as the suffix for object files.
  
   -- Macro: TARGET_EXECUTABLE_SUFFIX
       Define this macro to be a C string representing the suffix to be
!      automatically added to executable files on your target machine.  If
!      you do not define this macro, GCC will use the null string as the
!      suffix for executable files.
  
   -- Macro: COLLECT_EXPORT_LIST
!      If defined, 'collect2' will scan the individual object files
       specified on its command line and create an export list for the
       linker.  Define this macro for systems like AIX, where the linker
!      discards object files that are not referenced from 'main' and uses
       export lists.
  
   -- Macro: MODIFY_JNI_METHOD_CALL (MDECL)
*************** Here are several miscellaneous parameter
*** 38883,38889 ****
       method call MDECL, if Java Native Interface (JNI) methods must be
       invoked differently from other methods on your target.  For
       example, on 32-bit Microsoft Windows, JNI methods must be invoked
!      using the `stdcall' calling convention and this macro is then
       defined as this expression:
  
            build_type_attribute_variant (MDECL,
--- 38448,38454 ----
       method call MDECL, if Java Native Interface (JNI) methods must be
       invoked differently from other methods on your target.  For
       example, on 32-bit Microsoft Windows, JNI methods must be invoked
!      using the 'stdcall' calling convention and this macro is then
       defined as this expression:
  
            build_type_attribute_variant (MDECL,
*************** Here are several miscellaneous parameter
*** 38892,38902 ****
                                           NULL))
  
   -- Target Hook: bool TARGET_CANNOT_MODIFY_JUMPS_P (void)
!      This target hook returns `true' past the point in which new jump
!      instructions could be created.  On machines that require a
!      register for every jump such as the SHmedia ISA of SH5, this point
!      would typically be reload, so this target hook should be defined
!      to a function such as:
  
            static bool
            cannot_modify_jumps_past_reload_p ()
--- 38457,38467 ----
                                           NULL))
  
   -- Target Hook: bool TARGET_CANNOT_MODIFY_JUMPS_P (void)
!      This target hook returns 'true' past the point in which new jump
!      instructions could be created.  On machines that require a register
!      for every jump such as the SHmedia ISA of SH5, this point would
!      typically be reload, so this target hook should be defined to a
!      function such as:
  
            static bool
            cannot_modify_jumps_past_reload_p ()
*************** Here are several miscellaneous parameter
*** 38907,38929 ****
   -- Target Hook: reg_class_t TARGET_BRANCH_TARGET_REGISTER_CLASS (void)
       This target hook returns a register class for which branch target
       register optimizations should be applied.  All registers in this
!      class should be usable interchangeably.  After reload, registers
!      in this class will be re-allocated and loads will be hoisted out
!      of loops and be subjected to inter-block scheduling.
  
   -- Target Hook: bool TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED (bool
            AFTER_PROLOGUE_EPILOGUE_GEN)
       Branch target register optimization will by default exclude
!      callee-saved registers that are not already live during the
!      current function; if this target hook returns true, they will be
!      included.  The target code must than make sure that all target
!      registers in the class returned by
!      `TARGET_BRANCH_TARGET_REGISTER_CLASS' that might need saving are
!      saved.  AFTER_PROLOGUE_EPILOGUE_GEN indicates if prologues and
!      epilogues have already been generated.  Note, even if you only
!      return true when AFTER_PROLOGUE_EPILOGUE_GEN is false, you still
!      are likely to have to make special provisions in
!      `INITIAL_ELIMINATION_OFFSET' to reserve space for caller-saved
       target registers.
  
   -- Target Hook: bool TARGET_HAVE_CONDITIONAL_EXECUTION (void)
--- 38472,38493 ----
   -- Target Hook: reg_class_t TARGET_BRANCH_TARGET_REGISTER_CLASS (void)
       This target hook returns a register class for which branch target
       register optimizations should be applied.  All registers in this
!      class should be usable interchangeably.  After reload, registers in
!      this class will be re-allocated and loads will be hoisted out of
!      loops and be subjected to inter-block scheduling.
  
   -- Target Hook: bool TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED (bool
            AFTER_PROLOGUE_EPILOGUE_GEN)
       Branch target register optimization will by default exclude
!      callee-saved registers that are not already live during the current
!      function; if this target hook returns true, they will be included.
!      The target code must than make sure that all target registers in
!      the class returned by 'TARGET_BRANCH_TARGET_REGISTER_CLASS' that
!      might need saving are saved.  AFTER_PROLOGUE_EPILOGUE_GEN indicates
!      if prologues and epilogues have already been generated.  Note, even
!      if you only return true when AFTER_PROLOGUE_EPILOGUE_GEN is false,
!      you still are likely to have to make special provisions in
!      'INITIAL_ELIMINATION_OFFSET' to reserve space for caller-saved
       target registers.
  
   -- Target Hook: bool TARGET_HAVE_CONDITIONAL_EXECUTION (void)
*************** Here are several miscellaneous parameter
*** 38932,38970 ****
       several different modes and they have different conditional
       execution capability, such as ARM.
  
!  -- Target Hook: rtx TARGET_GEN_CCMP_FIRST (rtx *PREP_SEQ, rtx
!           *GEN_SEQ, int CODE, tree OP0, tree OP1)
       This function prepares to emit a comparison insn for the first
!      compare in a  sequence of conditional comparisions.  It returns an
!      appropriate comparison  with `CC' for passing to `gen_ccmp_next'
!      or `cbranch_optab'.   The insns to prepare the compare are saved
!      in PREP_SEQ and the compare  insns are saved in GEN_SEQ.  They
!      will be emitted when all the  compares in the the conditional
!      comparision are generated without error.   CODE is the `rtx_code'
!      of the compare for OP0 and OP1.
  
   -- Target Hook: rtx TARGET_GEN_CCMP_NEXT (rtx *PREP_SEQ, rtx *GEN_SEQ,
            rtx PREV, int CMP_CODE, tree OP0, tree OP1, int BIT_CODE)
       This function prepares to emit a conditional comparison within a
!      sequence  of conditional comparisons.  It returns an appropriate
!      comparison with  `CC' for passing to `gen_ccmp_next' or
!      `cbranch_optab'.   The insns to prepare the compare are saved in
!      PREP_SEQ and the compare  insns are saved in GEN_SEQ.  They will
!      be emitted when all the  compares in the conditional comparision
!      are generated without error.  The  PREV expression is the result
!      of a prior call to `gen_ccmp_first'  or `gen_ccmp_next'.  It may
!      return `NULL' if the combination of  PREV and this comparison is
!      not supported, otherwise the result must  be appropriate for
!      passing to `gen_ccmp_next' or `cbranch_optab'.   CODE is the
!      `rtx_code' of the compare for OP0 and OP1.   BIT_CODE is `AND' or
!      `IOR', which is the op on the compares.
  
   -- Target Hook: unsigned TARGET_LOOP_UNROLL_ADJUST (unsigned NUNROLL,
            struct loop *LOOP)
       This target hook returns a new value for the number of times LOOP
!      should be unrolled. The parameter NUNROLL is the number of times
!      the loop is to be unrolled. The parameter LOOP is a pointer to the
!      loop, which is going to be checked for unrolling. This target hook
       is required only when the target has special constraints like
       maximum number of memory accesses.
  
--- 38496,38534 ----
       several different modes and they have different conditional
       execution capability, such as ARM.
  
!  -- Target Hook: rtx TARGET_GEN_CCMP_FIRST (rtx *PREP_SEQ, rtx *GEN_SEQ,
!           int CODE, tree OP0, tree OP1)
       This function prepares to emit a comparison insn for the first
!      compare in a sequence of conditional comparisions.  It returns an
!      appropriate comparison with 'CC' for passing to 'gen_ccmp_next' or
!      'cbranch_optab'.  The insns to prepare the compare are saved in
!      PREP_SEQ and the compare insns are saved in GEN_SEQ.  They will be
!      emitted when all the compares in the the conditional comparision
!      are generated without error.  CODE is the 'rtx_code' of the compare
!      for OP0 and OP1.
  
   -- Target Hook: rtx TARGET_GEN_CCMP_NEXT (rtx *PREP_SEQ, rtx *GEN_SEQ,
            rtx PREV, int CMP_CODE, tree OP0, tree OP1, int BIT_CODE)
       This function prepares to emit a conditional comparison within a
!      sequence of conditional comparisons.  It returns an appropriate
!      comparison with 'CC' for passing to 'gen_ccmp_next' or
!      'cbranch_optab'.  The insns to prepare the compare are saved in
!      PREP_SEQ and the compare insns are saved in GEN_SEQ.  They will be
!      emitted when all the compares in the conditional comparision are
!      generated without error.  The PREV expression is the result of a
!      prior call to 'gen_ccmp_first' or 'gen_ccmp_next'.  It may return
!      'NULL' if the combination of PREV and this comparison is not
!      supported, otherwise the result must be appropriate for passing to
!      'gen_ccmp_next' or 'cbranch_optab'.  CODE is the 'rtx_code' of the
!      compare for OP0 and OP1.  BIT_CODE is 'AND' or 'IOR', which is the
!      op on the compares.
  
   -- Target Hook: unsigned TARGET_LOOP_UNROLL_ADJUST (unsigned NUNROLL,
            struct loop *LOOP)
       This target hook returns a new value for the number of times LOOP
!      should be unrolled.  The parameter NUNROLL is the number of times
!      the loop is to be unrolled.  The parameter LOOP is a pointer to the
!      loop, which is going to be checked for unrolling.  This target hook
       is required only when the target has special constraints like
       maximum number of memory accesses.
  
*************** Here are several miscellaneous parameter
*** 38975,39034 ****
       exponentiation by an integer constant inline.  When this value is
       defined, exponentiation requiring more than this number of
       multiplications is implemented by calling the system library's
!      `pow', `powf' or `powl' routines.  The default value places no
       upper bound on the multiplication count.
  
   -- Macro: void TARGET_EXTRA_INCLUDES (const char *SYSROOT, const char
            *IPREFIX, int STDINC)
       This target hook should register any extra include files for the
!      target.  The parameter STDINC indicates if normal include files
!      are present.  The parameter SYSROOT is the system root directory.
!      The parameter IPREFIX is the prefix for the gcc directory.
  
   -- Macro: void TARGET_EXTRA_PRE_INCLUDES (const char *SYSROOT, const
            char *IPREFIX, int STDINC)
       This target hook should register any extra include files for the
!      target before any standard headers.  The parameter STDINC
!      indicates if normal include files are present.  The parameter
!      SYSROOT is the system root directory.  The parameter IPREFIX is
!      the prefix for the gcc directory.
  
   -- Macro: void TARGET_OPTF (char *PATH)
       This target hook should register special include paths for the
       target.  The parameter PATH is the include to register.  On Darwin
       systems, this is used for Framework includes, which have semantics
!      that are different from `-I'.
  
   -- Macro: bool TARGET_USE_LOCAL_THUNK_ALIAS_P (tree FNDECL)
!      This target macro returns `true' if it is safe to use a local alias
!      for a virtual function FNDECL when constructing thunks, `false'
!      otherwise.  By default, the macro returns `true' for all
!      functions, if a target supports aliases (i.e. defines
!      `ASM_OUTPUT_DEF'), `false' otherwise,
  
   -- Macro: TARGET_FORMAT_TYPES
       If defined, this macro is the name of a global variable containing
!      target-specific format checking information for the `-Wformat'
       option.  The default is to have no target-specific format checks.
  
   -- Macro: TARGET_N_FORMAT_TYPES
       If defined, this macro is the number of entries in
!      `TARGET_FORMAT_TYPES'.
  
   -- Macro: TARGET_OVERRIDES_FORMAT_ATTRIBUTES
       If defined, this macro is the name of a global variable containing
!      target-specific format overrides for the `-Wformat' option. The
!      default is to have no target-specific format overrides. If defined,
!      `TARGET_FORMAT_TYPES' must be defined, too.
  
   -- Macro: TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT
       If defined, this macro specifies the number of entries in
!      `TARGET_OVERRIDES_FORMAT_ATTRIBUTES'.
  
   -- Macro: TARGET_OVERRIDES_FORMAT_INIT
       If defined, this macro specifies the optional initialization
!      routine for target specific customizations of the system printf
!      and scanf formatter settings.
  
   -- Target Hook: const char * TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN
            (const_tree TYPELIST, const_tree FUNCDECL, const_tree VAL)
--- 38539,38598 ----
       exponentiation by an integer constant inline.  When this value is
       defined, exponentiation requiring more than this number of
       multiplications is implemented by calling the system library's
!      'pow', 'powf' or 'powl' routines.  The default value places no
       upper bound on the multiplication count.
  
   -- Macro: void TARGET_EXTRA_INCLUDES (const char *SYSROOT, const char
            *IPREFIX, int STDINC)
       This target hook should register any extra include files for the
!      target.  The parameter STDINC indicates if normal include files are
!      present.  The parameter SYSROOT is the system root directory.  The
!      parameter IPREFIX is the prefix for the gcc directory.
  
   -- Macro: void TARGET_EXTRA_PRE_INCLUDES (const char *SYSROOT, const
            char *IPREFIX, int STDINC)
       This target hook should register any extra include files for the
!      target before any standard headers.  The parameter STDINC indicates
!      if normal include files are present.  The parameter SYSROOT is the
!      system root directory.  The parameter IPREFIX is the prefix for the
!      gcc directory.
  
   -- Macro: void TARGET_OPTF (char *PATH)
       This target hook should register special include paths for the
       target.  The parameter PATH is the include to register.  On Darwin
       systems, this is used for Framework includes, which have semantics
!      that are different from '-I'.
  
   -- Macro: bool TARGET_USE_LOCAL_THUNK_ALIAS_P (tree FNDECL)
!      This target macro returns 'true' if it is safe to use a local alias
!      for a virtual function FNDECL when constructing thunks, 'false'
!      otherwise.  By default, the macro returns 'true' for all functions,
!      if a target supports aliases (i.e. defines 'ASM_OUTPUT_DEF'),
!      'false' otherwise,
  
   -- Macro: TARGET_FORMAT_TYPES
       If defined, this macro is the name of a global variable containing
!      target-specific format checking information for the '-Wformat'
       option.  The default is to have no target-specific format checks.
  
   -- Macro: TARGET_N_FORMAT_TYPES
       If defined, this macro is the number of entries in
!      'TARGET_FORMAT_TYPES'.
  
   -- Macro: TARGET_OVERRIDES_FORMAT_ATTRIBUTES
       If defined, this macro is the name of a global variable containing
!      target-specific format overrides for the '-Wformat' option.  The
!      default is to have no target-specific format overrides.  If
!      defined, 'TARGET_FORMAT_TYPES' must be defined, too.
  
   -- Macro: TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT
       If defined, this macro specifies the number of entries in
!      'TARGET_OVERRIDES_FORMAT_ATTRIBUTES'.
  
   -- Macro: TARGET_OVERRIDES_FORMAT_INIT
       If defined, this macro specifies the optional initialization
!      routine for target specific customizations of the system printf and
!      scanf formatter settings.
  
   -- Target Hook: const char * TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN
            (const_tree TYPELIST, const_tree FUNCDECL, const_tree VAL)
*************** Here are several miscellaneous parameter
*** 39039,39106 ****
   -- Target Hook: const char * TARGET_INVALID_CONVERSION (const_tree
            FROMTYPE, const_tree TOTYPE)
       If defined, this macro returns the diagnostic message when it is
!      invalid to convert from FROMTYPE to TOTYPE, or `NULL' if validity
       should be determined by the front end.
  
   -- Target Hook: const char * TARGET_INVALID_UNARY_OP (int OP,
            const_tree TYPE)
       If defined, this macro returns the diagnostic message when it is
       invalid to apply operation OP (where unary plus is denoted by
!      `CONVERT_EXPR') to an operand of type TYPE, or `NULL' if validity
       should be determined by the front end.
  
   -- Target Hook: const char * TARGET_INVALID_BINARY_OP (int OP,
            const_tree TYPE1, const_tree TYPE2)
       If defined, this macro returns the diagnostic message when it is
!      invalid to apply operation OP to operands of types TYPE1 and
!      TYPE2, or `NULL' if validity should be determined by the front end.
  
   -- Target Hook: const char * TARGET_INVALID_PARAMETER_TYPE (const_tree
            TYPE)
       If defined, this macro returns the diagnostic message when it is
!      invalid for functions to include parameters of type TYPE, or
!      `NULL' if validity should be determined by the front end.  This is
       currently used only by the C and C++ front ends.
  
   -- Target Hook: const char * TARGET_INVALID_RETURN_TYPE (const_tree
            TYPE)
       If defined, this macro returns the diagnostic message when it is
!      invalid for functions to have return type TYPE, or `NULL' if
       validity should be determined by the front end.  This is currently
       used only by the C and C++ front ends.
  
   -- Target Hook: tree TARGET_PROMOTED_TYPE (const_tree TYPE)
       If defined, this target hook returns the type to which values of
       TYPE should be promoted when they appear in expressions, analogous
!      to the integer promotions, or `NULL_TREE' to use the front end's
       normal promotion rules.  This hook is useful when there are
       target-specific types with special promotion rules.  This is
       currently used only by the C and C++ front ends.
  
   -- Target Hook: tree TARGET_CONVERT_TO_TYPE (tree TYPE, tree EXPR)
       If defined, this hook returns the result of converting EXPR to
!      TYPE.  It should return the converted expression, or `NULL_TREE'
!      to apply the front end's normal conversion rules.  This hook is
!      useful when there are target-specific types with special
!      conversion rules.  This is currently used only by the C and C++
!      front ends.
  
   -- Macro: TARGET_USE_JCR_SECTION
       This macro determines whether to use the JCR section to register
!      Java classes. By default, TARGET_USE_JCR_SECTION is defined to 1
!      if both SUPPORTS_WEAK and TARGET_HAVE_NAMED_SECTIONS are true,
!      else 0.
  
   -- Macro: OBJC_JBLEN
       This macro determines the size of the objective C jump buffer for
!      the NeXT runtime. By default, OBJC_JBLEN is defined to an
       innocuous value.
  
   -- Macro: LIBGCC2_UNWIND_ATTRIBUTE
       Define this macro if any target-specific attributes need to be
!      attached to the functions in `libgcc' that provide low-level
       support for call stack unwinding.  It is used in declarations in
!      `unwind-generic.h' and the associated definitions of those
       functions.
  
   -- Target Hook: void TARGET_UPDATE_STACK_BOUNDARY (void)
--- 38603,38669 ----
   -- Target Hook: const char * TARGET_INVALID_CONVERSION (const_tree
            FROMTYPE, const_tree TOTYPE)
       If defined, this macro returns the diagnostic message when it is
!      invalid to convert from FROMTYPE to TOTYPE, or 'NULL' if validity
       should be determined by the front end.
  
   -- Target Hook: const char * TARGET_INVALID_UNARY_OP (int OP,
            const_tree TYPE)
       If defined, this macro returns the diagnostic message when it is
       invalid to apply operation OP (where unary plus is denoted by
!      'CONVERT_EXPR') to an operand of type TYPE, or 'NULL' if validity
       should be determined by the front end.
  
   -- Target Hook: const char * TARGET_INVALID_BINARY_OP (int OP,
            const_tree TYPE1, const_tree TYPE2)
       If defined, this macro returns the diagnostic message when it is
!      invalid to apply operation OP to operands of types TYPE1 and TYPE2,
!      or 'NULL' if validity should be determined by the front end.
  
   -- Target Hook: const char * TARGET_INVALID_PARAMETER_TYPE (const_tree
            TYPE)
       If defined, this macro returns the diagnostic message when it is
!      invalid for functions to include parameters of type TYPE, or 'NULL'
!      if validity should be determined by the front end.  This is
       currently used only by the C and C++ front ends.
  
   -- Target Hook: const char * TARGET_INVALID_RETURN_TYPE (const_tree
            TYPE)
       If defined, this macro returns the diagnostic message when it is
!      invalid for functions to have return type TYPE, or 'NULL' if
       validity should be determined by the front end.  This is currently
       used only by the C and C++ front ends.
  
   -- Target Hook: tree TARGET_PROMOTED_TYPE (const_tree TYPE)
       If defined, this target hook returns the type to which values of
       TYPE should be promoted when they appear in expressions, analogous
!      to the integer promotions, or 'NULL_TREE' to use the front end's
       normal promotion rules.  This hook is useful when there are
       target-specific types with special promotion rules.  This is
       currently used only by the C and C++ front ends.
  
   -- Target Hook: tree TARGET_CONVERT_TO_TYPE (tree TYPE, tree EXPR)
       If defined, this hook returns the result of converting EXPR to
!      TYPE.  It should return the converted expression, or 'NULL_TREE' to
!      apply the front end's normal conversion rules.  This hook is useful
!      when there are target-specific types with special conversion rules.
!      This is currently used only by the C and C++ front ends.
  
   -- Macro: TARGET_USE_JCR_SECTION
       This macro determines whether to use the JCR section to register
!      Java classes.  By default, TARGET_USE_JCR_SECTION is defined to 1
!      if both SUPPORTS_WEAK and TARGET_HAVE_NAMED_SECTIONS are true, else
!      0.
  
   -- Macro: OBJC_JBLEN
       This macro determines the size of the objective C jump buffer for
!      the NeXT runtime.  By default, OBJC_JBLEN is defined to an
       innocuous value.
  
   -- Macro: LIBGCC2_UNWIND_ATTRIBUTE
       Define this macro if any target-specific attributes need to be
!      attached to the functions in 'libgcc' that provide low-level
       support for call stack unwinding.  It is used in declarations in
!      'unwind-generic.h' and the associated definitions of those
       functions.
  
   -- Target Hook: void TARGET_UPDATE_STACK_BOUNDARY (void)
*************** Here are several miscellaneous parameter
*** 39108,39124 ****
       necessary.
  
   -- Target Hook: rtx TARGET_GET_DRAP_RTX (void)
!      This hook should return an rtx for Dynamic Realign Argument
!      Pointer (DRAP) if a different argument pointer register is needed
!      to access the function's argument list due to stack realignment.
!      Return `NULL' if no DRAP is needed.
  
   -- Target Hook: bool TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS (void)
       When optimization is disabled, this hook indicates whether or not
       arguments should be allocated to stack slots.  Normally, GCC
       allocates stacks slots for arguments when not optimizing in order
       to make debugging easier.  However, when a function is declared
!      with `__attribute__((naked))', there is no stack frame, and the
       compiler cannot safely move arguments from the registers in which
       they are passed to the stack.  Therefore, this hook should return
       true in general, but false for naked functions.  The default
--- 38671,38687 ----
       necessary.
  
   -- Target Hook: rtx TARGET_GET_DRAP_RTX (void)
!      This hook should return an rtx for Dynamic Realign Argument Pointer
!      (DRAP) if a different argument pointer register is needed to access
!      the function's argument list due to stack realignment.  Return
!      'NULL' if no DRAP is needed.
  
   -- Target Hook: bool TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS (void)
       When optimization is disabled, this hook indicates whether or not
       arguments should be allocated to stack slots.  Normally, GCC
       allocates stacks slots for arguments when not optimizing in order
       to make debugging easier.  However, when a function is declared
!      with '__attribute__((naked))', there is no stack frame, and the
       compiler cannot safely move arguments from the registers in which
       they are passed to the stack.  Therefore, this hook should return
       true in general, but false for naked functions.  The default
*************** Here are several miscellaneous parameter
*** 39129,39145 ****
       synthesize a constant.  If there is another constant already in a
       register that is close enough in value then it is preferable that
       the new constant is computed from this register using immediate
!      addition or subtraction.  We accomplish this through CSE.  Besides
!      the value of the constant we also add a lower and an upper
!      constant anchor to the available expressions.  These are then
!      queried when encountering new constants.  The anchors are computed
!      by rounding the constant up and down to a multiple of the value of
!      `TARGET_CONST_ANCHOR'.  `TARGET_CONST_ANCHOR' should be the
!      maximum positive value accepted by immediate-add plus one.  We
!      currently assume that the value of `TARGET_CONST_ANCHOR' is a
!      power of 2.  For example, on MIPS, where add-immediate takes a
!      16-bit signed value, `TARGET_CONST_ANCHOR' is set to `0x8000'.
!      The default value is zero, which disables this optimization.
  
   -- Target Hook: unsigned HOST_WIDE_INT TARGET_ASAN_SHADOW_OFFSET (void)
       Return the offset bitwise ored into shifted address to get
--- 38692,38708 ----
       synthesize a constant.  If there is another constant already in a
       register that is close enough in value then it is preferable that
       the new constant is computed from this register using immediate
!      addition or subtraction.  We accomplish this through CSE. Besides
!      the value of the constant we also add a lower and an upper constant
!      anchor to the available expressions.  These are then queried when
!      encountering new constants.  The anchors are computed by rounding
!      the constant up and down to a multiple of the value of
!      'TARGET_CONST_ANCHOR'.  'TARGET_CONST_ANCHOR' should be the maximum
!      positive value accepted by immediate-add plus one.  We currently
!      assume that the value of 'TARGET_CONST_ANCHOR' is a power of 2.
!      For example, on MIPS, where add-immediate takes a 16-bit signed
!      value, 'TARGET_CONST_ANCHOR' is set to '0x8000'.  The default value
!      is zero, which disables this optimization.
  
   -- Target Hook: unsigned HOST_WIDE_INT TARGET_ASAN_SHADOW_OFFSET (void)
       Return the offset bitwise ored into shifted address to get
*************** Here are several miscellaneous parameter
*** 39148,39246 ****
  
   -- Target Hook: unsigned HOST_WIDE_INT TARGET_MEMMODEL_CHECK (unsigned
            HOST_WIDE_INT VAL)
!      Validate target specific memory model mask bits. When NULL no
       target specific memory model bits are allowed.
  
   -- Target Hook: unsigned char TARGET_ATOMIC_TEST_AND_SET_TRUEVAL
       This value should be set if the result written by
!      `atomic_test_and_set' is not exactly 1, i.e. the `bool' `true'.
  
   -- Target Hook: bool TARGET_HAS_IFUNC_P (void)
!      It returns true if the target supports GNU indirect functions.
!      The support includes the assembler, linker and dynamic linker.
!      The default value of this hook is based on target's libc.
  
!  -- Target Hook: unsigned int TARGET_ATOMIC_ALIGN_FOR_MODE
!           (machine_mode MODE)
       If defined, this function returns an appropriate alignment in bits
       for an atomic object of machine_mode MODE.  If 0 is returned then
       the default alignment for the specified mode is used.
  
!  -- Target Hook: void TARGET_ATOMIC_ASSIGN_EXPAND_FENV (tree *HOLD,
!           tree *CLEAR, tree *UPDATE)
       ISO C11 requires atomic compound assignments that may raise
       floating-point exceptions to raise exceptions corresponding to the
       arithmetic operation whose result was successfully stored in a
       compare-and-exchange sequence.  This requires code equivalent to
!      calls to `feholdexcept', `feclearexcept' and `feupdateenv' to be
       generated at appropriate points in the compare-and-exchange
!      sequence.  This hook should set `*HOLD' to an expression
!      equivalent to the call to `feholdexcept', `*CLEAR' to an
!      expression equivalent to the call to `feclearexcept' and `*UPDATE'
!      to an expression equivalent to the call to `feupdateenv'.  The
!      three expressions are `NULL_TREE' on entry to the hook and may be
!      left as `NULL_TREE' if no code is required in a particular place.
!      The default implementation leaves all three expressions as
!      `NULL_TREE'.  The `__atomic_feraiseexcept' function from
!      `libatomic' may be of use as part of the code generated in
!      `*UPDATE'.
  
   -- Target Hook: void TARGET_RECORD_OFFLOAD_SYMBOL (tree)
       Used when offloaded functions are seen in the compilation unit and
!      no named sections are available.  It is called once for each
!      symbol that must be recorded in the offload function and variable
!      table.
  
   -- Target Hook: char * TARGET_OFFLOAD_OPTIONS (void)
       Used when writing out the list of options into an LTO file.  It
       should translate any relevant target-specific options (such as the
!      ABI in use) into one of the `-foffload' options that exist as a
       common interface to express such options.  It should return a
       string containing these options, separated by spaces, which the
       caller will free.
  
- 
   -- Macro: TARGET_SUPPORTS_WIDE_INT
!      On older ports, large integers are stored in `CONST_DOUBLE' rtl
!      objects.  Newer ports define `TARGET_SUPPORTS_WIDE_INT' to be
       nonzero to indicate that large integers are stored in
!      `CONST_WIDE_INT' rtl objects.  The `CONST_WIDE_INT' allows very
!      large integer constants to be represented.  `CONST_DOUBLE' is
!      limited to twice the size of the host's `HOST_WIDE_INT'
       representation.
  
       Converting a port mostly requires looking for the places where
!      `CONST_DOUBLE's are used with `VOIDmode' and replacing that code
!      with code that accesses `CONST_WIDE_INT's.  `"grep -i
       const_double"' at the port level gets you to 95% of the changes
!      that need to be made.  There are a few places that require a
!      deeper look.
  
!         * There is no equivalent to `hval' and `lval' for
!           `CONST_WIDE_INT's.  This would be difficult to express in the
            md language since there are a variable number of elements.
  
!           Most ports only check that `hval' is either 0 or -1 to see if
            the value is small.  As mentioned above, this will no longer
!           be necessary since small constants are always `CONST_INT'.
!           Of course there are still a few exceptions, the alpha's
            constraint used by the zap instruction certainly requires
            careful examination by C code.  However, all the current code
            does is pass the hval and lval to C code, so evolving the c
!           code to look at the `CONST_WIDE_INT' is not really a large
            change.
  
          * Because there is no standard template that ports use to
!           materialize constants, there is likely to be some futzing
!           that is unique to each port in this code.
  
          * The rtx costs may have to be adjusted to properly account for
!           larger constants that are represented as `CONST_WIDE_INT'.
  
       All and all it does not take long to convert ports that the
       maintainer is familiar with.
  
- 
  
  File: gccint.info,  Node: Host Config,  Next: Fragments,  Prev: Target Macros,  Up: Top
  
--- 38711,38806 ----
  
   -- Target Hook: unsigned HOST_WIDE_INT TARGET_MEMMODEL_CHECK (unsigned
            HOST_WIDE_INT VAL)
!      Validate target specific memory model mask bits.  When NULL no
       target specific memory model bits are allowed.
  
   -- Target Hook: unsigned char TARGET_ATOMIC_TEST_AND_SET_TRUEVAL
       This value should be set if the result written by
!      'atomic_test_and_set' is not exactly 1, i.e.  the 'bool' 'true'.
  
   -- Target Hook: bool TARGET_HAS_IFUNC_P (void)
!      It returns true if the target supports GNU indirect functions.  The
!      support includes the assembler, linker and dynamic linker.  The
!      default value of this hook is based on target's libc.
  
!  -- Target Hook: unsigned int TARGET_ATOMIC_ALIGN_FOR_MODE (machine_mode
!           MODE)
       If defined, this function returns an appropriate alignment in bits
       for an atomic object of machine_mode MODE.  If 0 is returned then
       the default alignment for the specified mode is used.
  
!  -- Target Hook: void TARGET_ATOMIC_ASSIGN_EXPAND_FENV (tree *HOLD, tree
!           *CLEAR, tree *UPDATE)
       ISO C11 requires atomic compound assignments that may raise
       floating-point exceptions to raise exceptions corresponding to the
       arithmetic operation whose result was successfully stored in a
       compare-and-exchange sequence.  This requires code equivalent to
!      calls to 'feholdexcept', 'feclearexcept' and 'feupdateenv' to be
       generated at appropriate points in the compare-and-exchange
!      sequence.  This hook should set '*HOLD' to an expression equivalent
!      to the call to 'feholdexcept', '*CLEAR' to an expression equivalent
!      to the call to 'feclearexcept' and '*UPDATE' to an expression
!      equivalent to the call to 'feupdateenv'.  The three expressions are
!      'NULL_TREE' on entry to the hook and may be left as 'NULL_TREE' if
!      no code is required in a particular place.  The default
!      implementation leaves all three expressions as 'NULL_TREE'.  The
!      '__atomic_feraiseexcept' function from 'libatomic' may be of use as
!      part of the code generated in '*UPDATE'.
  
   -- Target Hook: void TARGET_RECORD_OFFLOAD_SYMBOL (tree)
       Used when offloaded functions are seen in the compilation unit and
!      no named sections are available.  It is called once for each symbol
!      that must be recorded in the offload function and variable table.
  
   -- Target Hook: char * TARGET_OFFLOAD_OPTIONS (void)
       Used when writing out the list of options into an LTO file.  It
       should translate any relevant target-specific options (such as the
!      ABI in use) into one of the '-foffload' options that exist as a
       common interface to express such options.  It should return a
       string containing these options, separated by spaces, which the
       caller will free.
  
   -- Macro: TARGET_SUPPORTS_WIDE_INT
! 
!      On older ports, large integers are stored in 'CONST_DOUBLE' rtl
!      objects.  Newer ports define 'TARGET_SUPPORTS_WIDE_INT' to be
       nonzero to indicate that large integers are stored in
!      'CONST_WIDE_INT' rtl objects.  The 'CONST_WIDE_INT' allows very
!      large integer constants to be represented.  'CONST_DOUBLE' is
!      limited to twice the size of the host's 'HOST_WIDE_INT'
       representation.
  
       Converting a port mostly requires looking for the places where
!      'CONST_DOUBLE's are used with 'VOIDmode' and replacing that code
!      with code that accesses 'CONST_WIDE_INT's.  '"grep -i
       const_double"' at the port level gets you to 95% of the changes
!      that need to be made.  There are a few places that require a deeper
!      look.
  
!         * There is no equivalent to 'hval' and 'lval' for
!           'CONST_WIDE_INT's.  This would be difficult to express in the
            md language since there are a variable number of elements.
  
!           Most ports only check that 'hval' is either 0 or -1 to see if
            the value is small.  As mentioned above, this will no longer
!           be necessary since small constants are always 'CONST_INT'.  Of
!           course there are still a few exceptions, the alpha's
            constraint used by the zap instruction certainly requires
            careful examination by C code.  However, all the current code
            does is pass the hval and lval to C code, so evolving the c
!           code to look at the 'CONST_WIDE_INT' is not really a large
            change.
  
          * Because there is no standard template that ports use to
!           materialize constants, there is likely to be some futzing that
!           is unique to each port in this code.
  
          * The rtx costs may have to be adjusted to properly account for
!           larger constants that are represented as 'CONST_WIDE_INT'.
  
       All and all it does not take long to convert ports that the
       maintainer is familiar with.
  
  
  File: gccint.info,  Node: Host Config,  Next: Fragments,  Prev: Target Macros,  Up: Top
  
*************** File: gccint.info,  Node: Host Config,
*** 39248,39270 ****
  *********************
  
  Most details about the machine and system on which the compiler is
! actually running are detected by the `configure' script.  Some things
! are impossible for `configure' to detect; these are described in two
! ways, either by macros defined in a file named `xm-MACHINE.h' or by
! hook functions in the file specified by the OUT_HOST_HOOK_OBJ variable
! in `config.gcc'.  (The intention is that very few hosts will need a
! header file but nearly every fully supported host will need to override
! some hooks.)
  
   If you need to define only a few macros, and they have simple
! definitions, consider using the `xm_defines' variable in your
! `config.gcc' entry instead of creating a host configuration header.
  *Note System Config::.
  
  * Menu:
  
  * Host Common::         Things every host probably needs implemented.
! * Filesystem::          Your host can't have the letter `a' in filenames?
  * Host Misc::           Rare configuration options for hosts.
  
  
--- 38808,38830 ----
  *********************
  
  Most details about the machine and system on which the compiler is
! actually running are detected by the 'configure' script.  Some things
! are impossible for 'configure' to detect; these are described in two
! ways, either by macros defined in a file named 'xm-MACHINE.h' or by hook
! functions in the file specified by the OUT_HOST_HOOK_OBJ variable in
! 'config.gcc'.  (The intention is that very few hosts will need a header
! file but nearly every fully supported host will need to override some
! hooks.)
  
   If you need to define only a few macros, and they have simple
! definitions, consider using the 'xm_defines' variable in your
! 'config.gcc' entry instead of creating a host configuration header.
  *Note System Config::.
  
  * Menu:
  
  * Host Common::         Things every host probably needs implemented.
! * Filesystem::          Your host can't have the letter 'a' in filenames?
  * Host Misc::           Rare configuration options for hosts.
  
  
*************** File: gccint.info,  Node: Host Common,
*** 39276,39282 ****
  Some things are just not portable, even between similar operating
  systems, and are too difficult for autoconf to detect.  They get
  implemented using hook functions in the file specified by the
! HOST_HOOK_OBJ variable in `config.gcc'.
  
   -- Host Hook: void HOST_HOOKS_EXTRA_SIGNALS (void)
       This host hook is used to set up handling for extra signals.  The
--- 38836,38842 ----
  Some things are just not portable, even between similar operating
  systems, and are too difficult for autoconf to detect.  They get
  implemented using hook functions in the file specified by the
! HOST_HOOK_OBJ variable in 'config.gcc'.
  
   -- Host Hook: void HOST_HOOKS_EXTRA_SIGNALS (void)
       This host hook is used to set up handling for extra signals.  The
*************** HOST_HOOK_OBJ variable in `config.gcc'.
*** 39286,39305 ****
            FD)
       This host hook returns the address of some space that is likely to
       be free in some subsequent invocation of the compiler.  We intend
!      to load the PCH data at this address such that the data need not
!      be relocated.  The area should be able to hold SIZE bytes.  If the
!      host uses `mmap', FD is an open file descriptor that can be used
       for probing.
  
!  -- Host Hook: int HOST_HOOKS_GT_PCH_USE_ADDRESS (void * ADDRESS,
!           size_t SIZE, int FD, size_t OFFSET)
!      This host hook is called when a PCH file is about to be loaded.
!      We want to load SIZE bytes from FD at OFFSET into memory at
!      ADDRESS.  The given address will be the result of a previous
!      invocation of `HOST_HOOKS_GT_PCH_GET_ADDRESS'.  Return -1 if we
!      couldn't allocate SIZE bytes at ADDRESS.  Return 0 if the memory
!      is allocated but the data is not loaded.  Return 1 if the hook has
!      performed everything.
  
       If the implementation uses reserved address space, free any
       reserved space beyond SIZE, regardless of the return value.  If no
--- 38846,38864 ----
            FD)
       This host hook returns the address of some space that is likely to
       be free in some subsequent invocation of the compiler.  We intend
!      to load the PCH data at this address such that the data need not be
!      relocated.  The area should be able to hold SIZE bytes.  If the
!      host uses 'mmap', FD is an open file descriptor that can be used
       for probing.
  
!  -- Host Hook: int HOST_HOOKS_GT_PCH_USE_ADDRESS (void * ADDRESS, size_t
!           SIZE, int FD, size_t OFFSET)
!      This host hook is called when a PCH file is about to be loaded.  We
!      want to load SIZE bytes from FD at OFFSET into memory at ADDRESS.
!      The given address will be the result of a previous invocation of
!      'HOST_HOOKS_GT_PCH_GET_ADDRESS'.  Return -1 if we couldn't allocate
!      SIZE bytes at ADDRESS.  Return 0 if the memory is allocated but the
!      data is not loaded.  Return 1 if the hook has performed everything.
  
       If the implementation uses reserved address space, free any
       reserved space beyond SIZE, regardless of the return value.  If no
*************** File: gccint.info,  Node: Filesystem,  N
*** 39325,39382 ****
  
  GCC needs to know a number of things about the semantics of the host
  machine's filesystem.  Filesystems with Unix and MS-DOS semantics are
! automatically detected.  For other systems, you can define the
! following macros in `xm-MACHINE.h'.
  
! `HAVE_DOS_BASED_FILE_SYSTEM'
!      This macro is automatically defined by `system.h' if the host file
       system obeys the semantics defined by MS-DOS instead of Unix.  DOS
       file systems are case insensitive, file specifications may begin
!      with a drive letter, and both forward slash and backslash (`/' and
!      `\') are directory separators.
  
! `DIR_SEPARATOR'
! `DIR_SEPARATOR_2'
       If defined, these macros expand to character constants specifying
       separators for directory names within a file specification.
!      `system.h' will automatically give them appropriate values on Unix
       and MS-DOS file systems.  If your file system is neither of these,
!      define one or both appropriately in `xm-MACHINE.h'.
  
       However, operating systems like VMS, where constructing a pathname
       is more complicated than just stringing together directory names
       separated by a special character, should not define either of these
       macros.
  
! `PATH_SEPARATOR'
       If defined, this macro should expand to a character constant
       specifying the separator for elements of search paths.  The default
!      value is a colon (`:').  DOS-based systems usually, but not
!      always, use semicolon (`;').
  
! `VMS'
       Define this macro if the host system is VMS.
  
! `HOST_OBJECT_SUFFIX'
       Define this macro to be a C string representing the suffix for
       object files on your host machine.  If you do not define this
!      macro, GCC will use `.o' as the suffix for object files.
  
! `HOST_EXECUTABLE_SUFFIX'
       Define this macro to be a C string representing the suffix for
       executable files on your host machine.  If you do not define this
       macro, GCC will use the null string as the suffix for executable
       files.
  
! `HOST_BIT_BUCKET'
       A pathname defined by the host operating system, which can be
!      opened as a file and written to, but all the information written
!      is discarded.  This is commonly known as a "bit bucket" or "null
!      device".  If you do not define this macro, GCC will use
!      `/dev/null' as the bit bucket.  If the host does not support a bit
!      bucket, define this macro to an invalid filename.
  
! `UPDATE_PATH_HOST_CANONICALIZE (PATH)'
       If defined, a C statement (sans semicolon) that performs
       host-dependent canonicalization when a path used in a compilation
       driver or preprocessor is canonicalized.  PATH is a malloc-ed path
--- 38884,38941 ----
  
  GCC needs to know a number of things about the semantics of the host
  machine's filesystem.  Filesystems with Unix and MS-DOS semantics are
! automatically detected.  For other systems, you can define the following
! macros in 'xm-MACHINE.h'.
  
! 'HAVE_DOS_BASED_FILE_SYSTEM'
!      This macro is automatically defined by 'system.h' if the host file
       system obeys the semantics defined by MS-DOS instead of Unix.  DOS
       file systems are case insensitive, file specifications may begin
!      with a drive letter, and both forward slash and backslash ('/' and
!      '\') are directory separators.
  
! 'DIR_SEPARATOR'
! 'DIR_SEPARATOR_2'
       If defined, these macros expand to character constants specifying
       separators for directory names within a file specification.
!      'system.h' will automatically give them appropriate values on Unix
       and MS-DOS file systems.  If your file system is neither of these,
!      define one or both appropriately in 'xm-MACHINE.h'.
  
       However, operating systems like VMS, where constructing a pathname
       is more complicated than just stringing together directory names
       separated by a special character, should not define either of these
       macros.
  
! 'PATH_SEPARATOR'
       If defined, this macro should expand to a character constant
       specifying the separator for elements of search paths.  The default
!      value is a colon (':').  DOS-based systems usually, but not always,
!      use semicolon (';').
  
! 'VMS'
       Define this macro if the host system is VMS.
  
! 'HOST_OBJECT_SUFFIX'
       Define this macro to be a C string representing the suffix for
       object files on your host machine.  If you do not define this
!      macro, GCC will use '.o' as the suffix for object files.
  
! 'HOST_EXECUTABLE_SUFFIX'
       Define this macro to be a C string representing the suffix for
       executable files on your host machine.  If you do not define this
       macro, GCC will use the null string as the suffix for executable
       files.
  
! 'HOST_BIT_BUCKET'
       A pathname defined by the host operating system, which can be
!      opened as a file and written to, but all the information written is
!      discarded.  This is commonly known as a "bit bucket" or "null
!      device".  If you do not define this macro, GCC will use '/dev/null'
!      as the bit bucket.  If the host does not support a bit bucket,
!      define this macro to an invalid filename.
  
! 'UPDATE_PATH_HOST_CANONICALIZE (PATH)'
       If defined, a C statement (sans semicolon) that performs
       host-dependent canonicalization when a path used in a compilation
       driver or preprocessor is canonicalized.  PATH is a malloc-ed path
*************** following macros in `xm-MACHINE.h'.
*** 39384,39402 ****
       into a different buffer, the old path should be freed and the new
       buffer should have been allocated with malloc.
  
! `DUMPFILE_FORMAT'
       Define this macro to be a C string representing the format to use
       for constructing the index part of debugging dump file names.  The
!      resultant string must fit in fifteen bytes.  The full filename
!      will be the concatenation of: the prefix of the assembler file
!      name, the string resulting from applying this format to an index
!      number, and a string unique to each dump file kind, e.g. `rtl'.
  
!      If you do not define this macro, GCC will use `.%02d.'.  You should
       define this macro if using the default will create an invalid file
       name.
  
! `DELETE_IF_ORDINARY'
       Define this macro to be a C statement (sans semicolon) that
       performs host-dependent removal of ordinary temp files in the
       compilation driver.
--- 38943,38961 ----
       into a different buffer, the old path should be freed and the new
       buffer should have been allocated with malloc.
  
! 'DUMPFILE_FORMAT'
       Define this macro to be a C string representing the format to use
       for constructing the index part of debugging dump file names.  The
!      resultant string must fit in fifteen bytes.  The full filename will
!      be the concatenation of: the prefix of the assembler file name, the
!      string resulting from applying this format to an index number, and
!      a string unique to each dump file kind, e.g. 'rtl'.
  
!      If you do not define this macro, GCC will use '.%02d.'.  You should
       define this macro if using the default will create an invalid file
       name.
  
! 'DELETE_IF_ORDINARY'
       Define this macro to be a C statement (sans semicolon) that
       performs host-dependent removal of ordinary temp files in the
       compilation driver.
*************** following macros in `xm-MACHINE.h'.
*** 39406,39414 ****
       reliably remove the temp file as, for example, on VMS which allows
       multiple versions of a file.
  
! `HOST_LACKS_INODE_NUMBERS'
!      Define this macro if the host filesystem does not report
!      meaningful inode numbers in struct stat.
  
  
  File: gccint.info,  Node: Host Misc,  Prev: Filesystem,  Up: Host Config
--- 38965,38973 ----
       reliably remove the temp file as, for example, on VMS which allows
       multiple versions of a file.
  
! 'HOST_LACKS_INODE_NUMBERS'
!      Define this macro if the host filesystem does not report meaningful
!      inode numbers in struct stat.
  
  
  File: gccint.info,  Node: Host Misc,  Prev: Filesystem,  Up: Host Config
*************** File: gccint.info,  Node: Host Misc,  Pr
*** 39416,39472 ****
  18.3 Host Misc
  ==============
  
! `FATAL_EXIT_CODE'
       A C expression for the status code to be returned when the compiler
       exits after serious errors.  The default is the system-provided
!      macro `EXIT_FAILURE', or `1' if the system doesn't define that
       macro.  Define this macro only if these defaults are incorrect.
  
! `SUCCESS_EXIT_CODE'
       A C expression for the status code to be returned when the compiler
       exits without serious errors.  (Warnings are not serious errors.)
!      The default is the system-provided macro `EXIT_SUCCESS', or `0' if
       the system doesn't define that macro.  Define this macro only if
       these defaults are incorrect.
  
! `USE_C_ALLOCA'
       Define this macro if GCC should use the C implementation of
!      `alloca' provided by `libiberty.a'.  This only affects how some
       parts of the compiler itself allocate memory.  It does not change
       code generation.
  
!      When GCC is built with a compiler other than itself, the C `alloca'
       is always used.  This is because most other implementations have
       serious bugs.  You should define this macro only on a system where
!      no stack-based `alloca' can possibly work.  For instance, if a
       system has a small limit on the size of the stack, GCC's builtin
!      `alloca' will not work reliably.
  
! `COLLECT2_HOST_INITIALIZATION'
       If defined, a C statement (sans semicolon) that performs
!      host-dependent initialization when `collect2' is being initialized.
  
! `GCC_DRIVER_HOST_INITIALIZATION'
       If defined, a C statement (sans semicolon) that performs
       host-dependent initialization when a compilation driver is being
       initialized.
  
! `HOST_LONG_LONG_FORMAT'
!      If defined, the string used to indicate an argument of type `long
!      long' to functions like `printf'.  The default value is `"ll"'.
  
! `HOST_LONG_FORMAT'
!      If defined, the string used to indicate an argument of type `long'
!      to functions like `printf'.  The default value is `"l"'.
  
! `HOST_PTR_PRINTF'
!      If defined, the string used to indicate an argument of type `void
!      *' to functions like `printf'.  The default value is `"%p"'.
  
!  In addition, if `configure' generates an incorrect definition of any
! of the macros in `auto-host.h', you can override that definition in a
! host configuration header.  If you need to do this, first see if it is
! possible to fix `configure'.
  
  
  File: gccint.info,  Node: Fragments,  Next: Collect2,  Prev: Host Config,  Up: Top
--- 38975,39031 ----
  18.3 Host Misc
  ==============
  
! 'FATAL_EXIT_CODE'
       A C expression for the status code to be returned when the compiler
       exits after serious errors.  The default is the system-provided
!      macro 'EXIT_FAILURE', or '1' if the system doesn't define that
       macro.  Define this macro only if these defaults are incorrect.
  
! 'SUCCESS_EXIT_CODE'
       A C expression for the status code to be returned when the compiler
       exits without serious errors.  (Warnings are not serious errors.)
!      The default is the system-provided macro 'EXIT_SUCCESS', or '0' if
       the system doesn't define that macro.  Define this macro only if
       these defaults are incorrect.
  
! 'USE_C_ALLOCA'
       Define this macro if GCC should use the C implementation of
!      'alloca' provided by 'libiberty.a'.  This only affects how some
       parts of the compiler itself allocate memory.  It does not change
       code generation.
  
!      When GCC is built with a compiler other than itself, the C 'alloca'
       is always used.  This is because most other implementations have
       serious bugs.  You should define this macro only on a system where
!      no stack-based 'alloca' can possibly work.  For instance, if a
       system has a small limit on the size of the stack, GCC's builtin
!      'alloca' will not work reliably.
  
! 'COLLECT2_HOST_INITIALIZATION'
       If defined, a C statement (sans semicolon) that performs
!      host-dependent initialization when 'collect2' is being initialized.
  
! 'GCC_DRIVER_HOST_INITIALIZATION'
       If defined, a C statement (sans semicolon) that performs
       host-dependent initialization when a compilation driver is being
       initialized.
  
! 'HOST_LONG_LONG_FORMAT'
!      If defined, the string used to indicate an argument of type 'long
!      long' to functions like 'printf'.  The default value is '"ll"'.
  
! 'HOST_LONG_FORMAT'
!      If defined, the string used to indicate an argument of type 'long'
!      to functions like 'printf'.  The default value is '"l"'.
  
! 'HOST_PTR_PRINTF'
!      If defined, the string used to indicate an argument of type 'void
!      *' to functions like 'printf'.  The default value is '"%p"'.
  
!  In addition, if 'configure' generates an incorrect definition of any of
! the macros in 'auto-host.h', you can override that definition in a host
! configuration header.  If you need to do this, first see if it is
! possible to fix 'configure'.
  
  
  File: gccint.info,  Node: Fragments,  Next: Collect2,  Prev: Host Config,  Up: Top
*************** File: gccint.info,  Node: Fragments,  Ne
*** 39474,39501 ****
  19 Makefile Fragments
  *********************
  
! When you configure GCC using the `configure' script, it will construct
! the file `Makefile' from the template file `Makefile.in'.  When it does
! this, it can incorporate makefile fragments from the `config'
! directory.  These are used to set Makefile parameters that are not
! amenable to being calculated by autoconf.  The list of fragments to
! incorporate is set by `config.gcc' (and occasionally `config.build' and
! `config.host'); *Note System Config::.
  
!  Fragments are named either `t-TARGET' or `x-HOST', depending on
! whether they are relevant to configuring GCC to produce code for a
! particular target, or to configuring GCC to run on a particular host.
! Here TARGET and HOST are mnemonics which usually have some relationship
! to the canonical system name, but no formal connection.
  
   If these files do not exist, it means nothing needs to be added for a
! given target or host.  Most targets need a few `t-TARGET' fragments,
! but needing `x-HOST' fragments is rare.
  
  * Menu:
  
! * Target Fragment:: Writing `t-TARGET' files.
! * Host Fragment::   Writing `x-HOST' files.
  
  
  File: gccint.info,  Node: Target Fragment,  Next: Host Fragment,  Up: Fragments
--- 39033,39060 ----
  19 Makefile Fragments
  *********************
  
! When you configure GCC using the 'configure' script, it will construct
! the file 'Makefile' from the template file 'Makefile.in'.  When it does
! this, it can incorporate makefile fragments from the 'config' directory.
! These are used to set Makefile parameters that are not amenable to being
! calculated by autoconf.  The list of fragments to incorporate is set by
! 'config.gcc' (and occasionally 'config.build' and 'config.host'); *Note
! System Config::.
  
!  Fragments are named either 't-TARGET' or 'x-HOST', depending on whether
! they are relevant to configuring GCC to produce code for a particular
! target, or to configuring GCC to run on a particular host.  Here TARGET
! and HOST are mnemonics which usually have some relationship to the
! canonical system name, but no formal connection.
  
   If these files do not exist, it means nothing needs to be added for a
! given target or host.  Most targets need a few 't-TARGET' fragments, but
! needing 'x-HOST' fragments is rare.
  
  * Menu:
  
! * Target Fragment:: Writing 't-TARGET' files.
! * Host Fragment::   Writing 'x-HOST' files.
  
  
  File: gccint.info,  Node: Target Fragment,  Next: Host Fragment,  Up: Fragments
*************** File: gccint.info,  Node: Target Fragmen
*** 39505,39673 ****
  
  Target makefile fragments can set these Makefile variables.
  
! `LIBGCC2_CFLAGS'
!      Compiler flags to use when compiling `libgcc2.c'.
  
! `LIB2FUNCS_EXTRA'
       A list of source file names to be compiled or assembled and
!      inserted into `libgcc.a'.
  
! `CRTSTUFF_T_CFLAGS'
!      Special flags used when compiling `crtstuff.c'.  *Note
       Initialization::.
  
! `CRTSTUFF_T_CFLAGS_S'
!      Special flags used when compiling `crtstuff.c' for shared linking.
!      Used if you use `crtbeginS.o' and `crtendS.o' in `EXTRA-PARTS'.
       *Note Initialization::.
  
! `MULTILIB_OPTIONS'
       For some targets, invoking GCC in different ways produces objects
       that can not be linked together.  For example, for some targets GCC
       produces both big and little endian code.  For these targets, you
!      must arrange for multiple versions of `libgcc.a' to be compiled,
       one for each set of incompatible options.  When GCC invokes the
!      linker, it arranges to link in the right version of `libgcc.a',
       based on the command line options used.
  
!      The `MULTILIB_OPTIONS' macro lists the set of options for which
!      special versions of `libgcc.a' must be built.  Write options that
       are mutually incompatible side by side, separated by a slash.
       Write options that may be used together separated by a space.  The
       build procedure will build all combinations of compatible options.
  
!      For example, if you set `MULTILIB_OPTIONS' to `m68000/m68020
!      msoft-float', `Makefile' will build special versions of `libgcc.a'
!      using the following sets of options:  `-m68000', `-m68020',
!      `-msoft-float', `-m68000 -msoft-float', and `-m68020 -msoft-float'.
  
! `MULTILIB_DIRNAMES'
!      If `MULTILIB_OPTIONS' is used, this variable specifies the
       directory names that should be used to hold the various libraries.
!      Write one element in `MULTILIB_DIRNAMES' for each element in
!      `MULTILIB_OPTIONS'.  If `MULTILIB_DIRNAMES' is not used, the
!      default value will be `MULTILIB_OPTIONS', with all slashes treated
       as spaces.
  
!      `MULTILIB_DIRNAMES' describes the multilib directories using GCC
       conventions and is applied to directories that are part of the GCC
       installation.  When multilib-enabled, the compiler will add a
       subdirectory of the form PREFIX/MULTILIB before each directory in
       the search path for libraries and crt files.
  
!      For example, if `MULTILIB_OPTIONS' is set to `m68000/m68020
!      msoft-float', then the default value of `MULTILIB_DIRNAMES' is
!      `m68000 m68020 msoft-float'.  You may specify a different value if
       you desire a different set of directory names.
  
! `MULTILIB_MATCHES'
!      Sometimes the same option may be written in two different ways.
!      If an option is listed in `MULTILIB_OPTIONS', GCC needs to know
!      about any synonyms.  In that case, set `MULTILIB_MATCHES' to a
!      list of items of the form `option=option' to describe all relevant
!      synonyms.  For example, `m68000=mc68000 m68020=mc68020'.
  
! `MULTILIB_EXCEPTIONS'
!      Sometimes when there are multiple sets of `MULTILIB_OPTIONS' being
       specified, there are combinations that should not be built.  In
!      that case, set `MULTILIB_EXCEPTIONS' to be all of the switch
       exceptions in shell case syntax that should not be built.
  
       For example the ARM processor cannot execute both hardware floating
       point instructions and the reduced size THUMB instructions at the
       same time, so there is no need to build libraries with both of
!      these options enabled.  Therefore `MULTILIB_EXCEPTIONS' is set to:
            *mthumb/*mhard-float*
  
! `MULTILIB_REQUIRED'
       Sometimes when there are only a few combinations are required, it
!      would be a big effort to come up with a `MULTILIB_EXCEPTIONS' list
       to cover all undesired ones.  In such a case, just listing all the
!      required combinations in `MULTILIB_REQUIRED' would be more
       straightforward.
  
!      The way to specify the entries in `MULTILIB_REQUIRED' is same with
!      the way used for `MULTILIB_EXCEPTIONS', only this time what are
       required will be specified.  Suppose there are multiple sets of
!      `MULTILIB_OPTIONS' and only two combinations are required, one for
       ARMv7-M and one for ARMv7-R with hard floating-point ABI and FPU,
!      the `MULTILIB_REQUIRED' can be set to:
!           `MULTILIB_REQUIRED' =  mthumb/march=armv7-m
!           `MULTILIB_REQUIRED' += march=armv7-r/mfloat-abi=hard/mfpu=vfpv3-d16
  
!      The `MULTILIB_REQUIRED' can be used together with
!      `MULTILIB_EXCEPTIONS'.  The option combinations generated from
!      `MULTILIB_OPTIONS' will be filtered by `MULTILIB_EXCEPTIONS' and
!      then by `MULTILIB_REQUIRED'.
  
! `MULTILIB_REUSE'
       Sometimes it is desirable to reuse one existing multilib for
       different sets of options.  Such kind of reuse can minimize the
       number of multilib variants.  And for some targets it is better to
       reuse an existing multilib than to fall back to default multilib
       when there is no corresponding multilib.  This can be done by
!      adding reuse rules to `MULTILIB_REUSE'.
  
       A reuse rule is comprised of two parts connected by equality sign.
       The left part is option set used to build multilib and the right
       part is option set that will reuse this multilib.  The order of
       options in the left part matters and should be same with those
!      specified in `MULTILIB_REQUIRED' or aligned with order in
!      `MULTILIB_OPTIONS'.  There is no such limitation for options in
       right part as we don't build multilib from them.  But the equality
       sign in both parts should be replaced with period.
  
!      The `MULTILIB_REUSE' is different from `MULTILIB_MATCHES' in that
       it sets up relations between two option sets rather than two
       options.  Here is an example to demo how we reuse libraries built
       in Thumb mode for applications built in ARM mode:
!           `MULTILIB_REUSE' = mthumb/march.armv7-r=marm/march.armv7-r
  
!      Before the advent of `MULTILIB_REUSE', GCC select multilib by
!      comparing command line options with options used to build
!      multilib.  The `MULTILIB_REUSE' is complementary to that way.
!      Only when the original comparison matches nothing it will work to
!      see if it is OK to reuse some existing multilib.
  
! `MULTILIB_EXTRA_OPTS'
       Sometimes it is desirable that when building multiple versions of
!      `libgcc.a' certain options should always be passed on to the
!      compiler.  In that case, set `MULTILIB_EXTRA_OPTS' to be the list
       of options to be used for all builds.  If you set this, you should
!      probably set `CRTSTUFF_T_CFLAGS' to a dash followed by it.
  
! `MULTILIB_OSDIRNAMES'
!      If `MULTILIB_OPTIONS' is used, this variable specifies a list of
       subdirectory names, that are used to modify the search path
!      depending on the chosen multilib.  Unlike `MULTILIB_DIRNAMES',
!      `MULTILIB_OSDIRNAMES' describes the multilib directories using
       operating systems conventions, and is applied to the directories
!      such as `lib' or those in the `LIBRARY_PATH' environment variable.
!      The format is either the same as of `MULTILIB_DIRNAMES', or a set
!      of mappings.  When it is the same as `MULTILIB_DIRNAMES', it
       describes the multilib directories using operating system
       conventions, rather than GCC conventions.  When it is a set of
       mappings of the form GCCDIR=OSDIR, the left side gives the GCC
       convention and the right gives the equivalent OS defined location.
!      If the OSDIR part begins with a `!', GCC will not search in the
       non-multilib directory and use exclusively the multilib directory.
       Otherwise, the compiler will examine the search path for libraries
       and crt files twice; the first time it will add MULTILIB to each
       directory in the search path, the second it will not.
  
       For configurations that support both multilib and multiarch,
!      `MULTILIB_OSDIRNAMES' also encodes the multiarch name, thus
!      subsuming `MULTIARCH_DIRNAME'.  The multiarch name is appended to
       each directory name, separated by a colon (e.g.
!      `../lib32:i386-linux-gnu').
  
       Each multiarch subdirectory will be searched before the
       corresponding OS multilib directory, for example
!      `/lib/i386-linux-gnu' before `/lib/../lib32'.  The multiarch name
       will also be used to modify the system header search path, as
!      explained for `MULTIARCH_DIRNAME'.
  
! `MULTIARCH_DIRNAME'
       This variable specifies the multiarch name for configurations that
       are multiarch-enabled but not multilibbed configurations.
  
--- 39064,39232 ----
  
  Target makefile fragments can set these Makefile variables.
  
! 'LIBGCC2_CFLAGS'
!      Compiler flags to use when compiling 'libgcc2.c'.
  
! 'LIB2FUNCS_EXTRA'
       A list of source file names to be compiled or assembled and
!      inserted into 'libgcc.a'.
  
! 'CRTSTUFF_T_CFLAGS'
!      Special flags used when compiling 'crtstuff.c'.  *Note
       Initialization::.
  
! 'CRTSTUFF_T_CFLAGS_S'
!      Special flags used when compiling 'crtstuff.c' for shared linking.
!      Used if you use 'crtbeginS.o' and 'crtendS.o' in 'EXTRA-PARTS'.
       *Note Initialization::.
  
! 'MULTILIB_OPTIONS'
       For some targets, invoking GCC in different ways produces objects
       that can not be linked together.  For example, for some targets GCC
       produces both big and little endian code.  For these targets, you
!      must arrange for multiple versions of 'libgcc.a' to be compiled,
       one for each set of incompatible options.  When GCC invokes the
!      linker, it arranges to link in the right version of 'libgcc.a',
       based on the command line options used.
  
!      The 'MULTILIB_OPTIONS' macro lists the set of options for which
!      special versions of 'libgcc.a' must be built.  Write options that
       are mutually incompatible side by side, separated by a slash.
       Write options that may be used together separated by a space.  The
       build procedure will build all combinations of compatible options.
  
!      For example, if you set 'MULTILIB_OPTIONS' to 'm68000/m68020
!      msoft-float', 'Makefile' will build special versions of 'libgcc.a'
!      using the following sets of options: '-m68000', '-m68020',
!      '-msoft-float', '-m68000 -msoft-float', and '-m68020 -msoft-float'.
  
! 'MULTILIB_DIRNAMES'
!      If 'MULTILIB_OPTIONS' is used, this variable specifies the
       directory names that should be used to hold the various libraries.
!      Write one element in 'MULTILIB_DIRNAMES' for each element in
!      'MULTILIB_OPTIONS'.  If 'MULTILIB_DIRNAMES' is not used, the
!      default value will be 'MULTILIB_OPTIONS', with all slashes treated
       as spaces.
  
!      'MULTILIB_DIRNAMES' describes the multilib directories using GCC
       conventions and is applied to directories that are part of the GCC
       installation.  When multilib-enabled, the compiler will add a
       subdirectory of the form PREFIX/MULTILIB before each directory in
       the search path for libraries and crt files.
  
!      For example, if 'MULTILIB_OPTIONS' is set to 'm68000/m68020
!      msoft-float', then the default value of 'MULTILIB_DIRNAMES' is
!      'm68000 m68020 msoft-float'.  You may specify a different value if
       you desire a different set of directory names.
  
! 'MULTILIB_MATCHES'
!      Sometimes the same option may be written in two different ways.  If
!      an option is listed in 'MULTILIB_OPTIONS', GCC needs to know about
!      any synonyms.  In that case, set 'MULTILIB_MATCHES' to a list of
!      items of the form 'option=option' to describe all relevant
!      synonyms.  For example, 'm68000=mc68000 m68020=mc68020'.
  
! 'MULTILIB_EXCEPTIONS'
!      Sometimes when there are multiple sets of 'MULTILIB_OPTIONS' being
       specified, there are combinations that should not be built.  In
!      that case, set 'MULTILIB_EXCEPTIONS' to be all of the switch
       exceptions in shell case syntax that should not be built.
  
       For example the ARM processor cannot execute both hardware floating
       point instructions and the reduced size THUMB instructions at the
       same time, so there is no need to build libraries with both of
!      these options enabled.  Therefore 'MULTILIB_EXCEPTIONS' is set to:
            *mthumb/*mhard-float*
  
! 'MULTILIB_REQUIRED'
       Sometimes when there are only a few combinations are required, it
!      would be a big effort to come up with a 'MULTILIB_EXCEPTIONS' list
       to cover all undesired ones.  In such a case, just listing all the
!      required combinations in 'MULTILIB_REQUIRED' would be more
       straightforward.
  
!      The way to specify the entries in 'MULTILIB_REQUIRED' is same with
!      the way used for 'MULTILIB_EXCEPTIONS', only this time what are
       required will be specified.  Suppose there are multiple sets of
!      'MULTILIB_OPTIONS' and only two combinations are required, one for
       ARMv7-M and one for ARMv7-R with hard floating-point ABI and FPU,
!      the 'MULTILIB_REQUIRED' can be set to:
!           MULTILIB_REQUIRED =  mthumb/march=armv7-m
!           MULTILIB_REQUIRED += march=armv7-r/mfloat-abi=hard/mfpu=vfpv3-d16
  
!      The 'MULTILIB_REQUIRED' can be used together with
!      'MULTILIB_EXCEPTIONS'.  The option combinations generated from
!      'MULTILIB_OPTIONS' will be filtered by 'MULTILIB_EXCEPTIONS' and
!      then by 'MULTILIB_REQUIRED'.
  
! 'MULTILIB_REUSE'
       Sometimes it is desirable to reuse one existing multilib for
       different sets of options.  Such kind of reuse can minimize the
       number of multilib variants.  And for some targets it is better to
       reuse an existing multilib than to fall back to default multilib
       when there is no corresponding multilib.  This can be done by
!      adding reuse rules to 'MULTILIB_REUSE'.
  
       A reuse rule is comprised of two parts connected by equality sign.
       The left part is option set used to build multilib and the right
       part is option set that will reuse this multilib.  The order of
       options in the left part matters and should be same with those
!      specified in 'MULTILIB_REQUIRED' or aligned with order in
!      'MULTILIB_OPTIONS'.  There is no such limitation for options in
       right part as we don't build multilib from them.  But the equality
       sign in both parts should be replaced with period.
  
!      The 'MULTILIB_REUSE' is different from 'MULTILIB_MATCHES' in that
       it sets up relations between two option sets rather than two
       options.  Here is an example to demo how we reuse libraries built
       in Thumb mode for applications built in ARM mode:
!           MULTILIB_REUSE = mthumb/march.armv7-r=marm/march.armv7-r
  
!      Before the advent of 'MULTILIB_REUSE', GCC select multilib by
!      comparing command line options with options used to build multilib.
!      The 'MULTILIB_REUSE' is complementary to that way.  Only when the
!      original comparison matches nothing it will work to see if it is OK
!      to reuse some existing multilib.
  
! 'MULTILIB_EXTRA_OPTS'
       Sometimes it is desirable that when building multiple versions of
!      'libgcc.a' certain options should always be passed on to the
!      compiler.  In that case, set 'MULTILIB_EXTRA_OPTS' to be the list
       of options to be used for all builds.  If you set this, you should
!      probably set 'CRTSTUFF_T_CFLAGS' to a dash followed by it.
  
! 'MULTILIB_OSDIRNAMES'
!      If 'MULTILIB_OPTIONS' is used, this variable specifies a list of
       subdirectory names, that are used to modify the search path
!      depending on the chosen multilib.  Unlike 'MULTILIB_DIRNAMES',
!      'MULTILIB_OSDIRNAMES' describes the multilib directories using
       operating systems conventions, and is applied to the directories
!      such as 'lib' or those in the 'LIBRARY_PATH' environment variable.
!      The format is either the same as of 'MULTILIB_DIRNAMES', or a set
!      of mappings.  When it is the same as 'MULTILIB_DIRNAMES', it
       describes the multilib directories using operating system
       conventions, rather than GCC conventions.  When it is a set of
       mappings of the form GCCDIR=OSDIR, the left side gives the GCC
       convention and the right gives the equivalent OS defined location.
!      If the OSDIR part begins with a '!', GCC will not search in the
       non-multilib directory and use exclusively the multilib directory.
       Otherwise, the compiler will examine the search path for libraries
       and crt files twice; the first time it will add MULTILIB to each
       directory in the search path, the second it will not.
  
       For configurations that support both multilib and multiarch,
!      'MULTILIB_OSDIRNAMES' also encodes the multiarch name, thus
!      subsuming 'MULTIARCH_DIRNAME'.  The multiarch name is appended to
       each directory name, separated by a colon (e.g.
!      '../lib32:i386-linux-gnu').
  
       Each multiarch subdirectory will be searched before the
       corresponding OS multilib directory, for example
!      '/lib/i386-linux-gnu' before '/lib/../lib32'.  The multiarch name
       will also be used to modify the system header search path, as
!      explained for 'MULTIARCH_DIRNAME'.
  
! 'MULTIARCH_DIRNAME'
       This variable specifies the multiarch name for configurations that
       are multiarch-enabled but not multilibbed configurations.
  
*************** Target makefile fragments can set these
*** 39676,39709 ****
       locations.  The compiler will add a multiarch subdirectory of the
       form PREFIX/MULTIARCH before each directory in the library and crt
       search path.  It will also add two directories
!      `LOCAL_INCLUDE_DIR'/MULTIARCH and
!      `NATIVE_SYSTEM_HEADER_DIR'/MULTIARCH) to the system header search
!      path, respectively before `LOCAL_INCLUDE_DIR' and
!      `NATIVE_SYSTEM_HEADER_DIR'.
  
!      `MULTIARCH_DIRNAME' is not used for configurations that support
       both multilib and multiarch.  In that case, multiarch names are
!      encoded in `MULTILIB_OSDIRNAMES' instead.
  
       More documentation about multiarch can be found at
!      `https://wiki.debian.org/Multiarch'.
  
! `SPECS'
!      Unfortunately, setting `MULTILIB_EXTRA_OPTS' is not enough, since
       it does not affect the build of target libraries, at least not the
       build of the default multilib.  One possible work-around is to use
!      `DRIVER_SELF_SPECS' to bring options from the `specs' file as if
!      they had been passed in the compiler driver command line.
!      However, you don't want to be adding these options after the
!      toolchain is installed, so you can instead tweak the `specs' file
!      that will be used during the toolchain build, while you still
!      install the original, built-in `specs'.  The trick is to set
!      `SPECS' to some other filename (say `specs.install'), that will
!      then be created out of the built-in specs, and introduce a
!      `Makefile' rule to generate the `specs' file that's going to be
!      used at build time out of your `specs.install'.
  
! `T_CFLAGS'
       These are extra flags to pass to the C compiler.  They are used
       both when building GCC, and when compiling things with the
       just-built GCC.  This variable is deprecated and should not be
--- 39235,39268 ----
       locations.  The compiler will add a multiarch subdirectory of the
       form PREFIX/MULTIARCH before each directory in the library and crt
       search path.  It will also add two directories
!      'LOCAL_INCLUDE_DIR'/MULTIARCH and
!      'NATIVE_SYSTEM_HEADER_DIR'/MULTIARCH) to the system header search
!      path, respectively before 'LOCAL_INCLUDE_DIR' and
!      'NATIVE_SYSTEM_HEADER_DIR'.
  
!      'MULTIARCH_DIRNAME' is not used for configurations that support
       both multilib and multiarch.  In that case, multiarch names are
!      encoded in 'MULTILIB_OSDIRNAMES' instead.
  
       More documentation about multiarch can be found at
!      <https://wiki.debian.org/Multiarch>.
  
! 'SPECS'
!      Unfortunately, setting 'MULTILIB_EXTRA_OPTS' is not enough, since
       it does not affect the build of target libraries, at least not the
       build of the default multilib.  One possible work-around is to use
!      'DRIVER_SELF_SPECS' to bring options from the 'specs' file as if
!      they had been passed in the compiler driver command line.  However,
!      you don't want to be adding these options after the toolchain is
!      installed, so you can instead tweak the 'specs' file that will be
!      used during the toolchain build, while you still install the
!      original, built-in 'specs'.  The trick is to set 'SPECS' to some
!      other filename (say 'specs.install'), that will then be created out
!      of the built-in specs, and introduce a 'Makefile' rule to generate
!      the 'specs' file that's going to be used at build time out of your
!      'specs.install'.
  
! 'T_CFLAGS'
       These are extra flags to pass to the C compiler.  They are used
       both when building GCC, and when compiling things with the
       just-built GCC.  This variable is deprecated and should not be
*************** File: gccint.info,  Node: Host Fragment,
*** 39715,39793 ****
  19.2 Host Makefile Fragments
  ============================
  
! The use of `x-HOST' fragments is discouraged.  You should only use it
  for makefile dependencies.
  
  
  File: gccint.info,  Node: Collect2,  Next: Header Dirs,  Prev: Fragments,  Up: Top
  
! 20 `collect2'
  *************
  
! GCC uses a utility called `collect2' on nearly all systems to arrange
! to call various initialization functions at start time.
  
!  The program `collect2' works by linking the program once and looking
  through the linker output file for symbols with particular names
  indicating they are constructor functions.  If it finds any, it creates
! a new temporary `.c' file containing a table of them, compiles it, and
  links the program a second time including that file.
  
   The actual calls to the constructors are carried out by a subroutine
! called `__main', which is called (automatically) at the beginning of
! the body of `main' (provided `main' was compiled with GNU CC).  Calling
! `__main' is necessary, even when compiling C code, to allow linking C
! and C++ object code together.  (If you use `-nostdlib', you get an
! unresolved reference to `__main', since it's defined in the standard
! GCC library.  Include `-lgcc' at the end of your compiler command line
! to resolve this reference.)
  
!  The program `collect2' is installed as `ld' in the directory where the
! passes of the compiler are installed.  When `collect2' needs to find
! the _real_ `ld', it tries the following file names:
  
     * a hard coded linker file name, if GCC was configured with the
!      `--with-ld' option.
  
!    * `real-ld' in the directories listed in the compiler's search
       directories.
  
!    * `real-ld' in the directories listed in the environment variable
!      `PATH'.
  
!    * The file specified in the `REAL_LD_FILE_NAME' configuration macro,
       if specified.
  
!    * `ld' in the compiler's search directories, except that `collect2'
       will not execute itself recursively.
  
!    * `ld' in `PATH'.
  
   "The compiler's search directories" means all the directories where
! `gcc' searches for passes of the compiler.  This includes directories
! that you specify with `-B'.
  
   Cross-compilers search a little differently:
  
!    * `real-ld' in the compiler's search directories.
  
!    * `TARGET-real-ld' in `PATH'.
  
!    * The file specified in the `REAL_LD_FILE_NAME' configuration macro,
       if specified.
  
!    * `ld' in the compiler's search directories.
  
!    * `TARGET-ld' in `PATH'.
  
!  `collect2' explicitly avoids running `ld' using the file name under
! which `collect2' itself was invoked.  In fact, it remembers up a list
! of such names--in case one copy of `collect2' finds another copy (or
! version) of `collect2' installed as `ld' in a second place in the
! search path.
  
!  `collect2' searches for the utilities `nm' and `strip' using the same
! algorithm as above for `ld'.
  
  
  File: gccint.info,  Node: Header Dirs,  Next: Type Information,  Prev: Collect2,  Up: Top
--- 39274,39352 ----
  19.2 Host Makefile Fragments
  ============================
  
! The use of 'x-HOST' fragments is discouraged.  You should only use it
  for makefile dependencies.
  
  
  File: gccint.info,  Node: Collect2,  Next: Header Dirs,  Prev: Fragments,  Up: Top
  
! 20 'collect2'
  *************
  
! GCC uses a utility called 'collect2' on nearly all systems to arrange to
! call various initialization functions at start time.
  
!  The program 'collect2' works by linking the program once and looking
  through the linker output file for symbols with particular names
  indicating they are constructor functions.  If it finds any, it creates
! a new temporary '.c' file containing a table of them, compiles it, and
  links the program a second time including that file.
  
   The actual calls to the constructors are carried out by a subroutine
! called '__main', which is called (automatically) at the beginning of the
! body of 'main' (provided 'main' was compiled with GNU CC).  Calling
! '__main' is necessary, even when compiling C code, to allow linking C
! and C++ object code together.  (If you use '-nostdlib', you get an
! unresolved reference to '__main', since it's defined in the standard GCC
! library.  Include '-lgcc' at the end of your compiler command line to
! resolve this reference.)
  
!  The program 'collect2' is installed as 'ld' in the directory where the
! passes of the compiler are installed.  When 'collect2' needs to find the
! _real_ 'ld', it tries the following file names:
  
     * a hard coded linker file name, if GCC was configured with the
!      '--with-ld' option.
  
!    * 'real-ld' in the directories listed in the compiler's search
       directories.
  
!    * 'real-ld' in the directories listed in the environment variable
!      'PATH'.
  
!    * The file specified in the 'REAL_LD_FILE_NAME' configuration macro,
       if specified.
  
!    * 'ld' in the compiler's search directories, except that 'collect2'
       will not execute itself recursively.
  
!    * 'ld' in 'PATH'.
  
   "The compiler's search directories" means all the directories where
! 'gcc' searches for passes of the compiler.  This includes directories
! that you specify with '-B'.
  
   Cross-compilers search a little differently:
  
!    * 'real-ld' in the compiler's search directories.
  
!    * 'TARGET-real-ld' in 'PATH'.
  
!    * The file specified in the 'REAL_LD_FILE_NAME' configuration macro,
       if specified.
  
!    * 'ld' in the compiler's search directories.
  
!    * 'TARGET-ld' in 'PATH'.
  
!  'collect2' explicitly avoids running 'ld' using the file name under
! which 'collect2' itself was invoked.  In fact, it remembers up a list of
! such names--in case one copy of 'collect2' finds another copy (or
! version) of 'collect2' installed as 'ld' in a second place in the search
! path.
  
!  'collect2' searches for the utilities 'nm' and 'strip' using the same
! algorithm as above for 'ld'.
  
  
  File: gccint.info,  Node: Header Dirs,  Next: Type Information,  Prev: Collect2,  Up: Top
*************** File: gccint.info,  Node: Header Dirs,
*** 39795,39823 ****
  21 Standard Header File Directories
  ***********************************
  
! `GCC_INCLUDE_DIR' means the same thing for native and cross.  It is
  where GCC stores its private include files, and also where GCC stores
! the fixed include files.  A cross compiled GCC runs `fixincludes' on
! the header files in `$(tooldir)/include'.  (If the cross compilation
! header files need to be fixed, they must be installed before GCC is
! built.  If the cross compilation header files are already suitable for
! GCC, nothing special need be done).
  
!  `GPLUSPLUS_INCLUDE_DIR' means the same thing for native and cross.  It
! is where `g++' looks first for header files.  The C++ library installs
  only target independent header files in that directory.
  
!  `LOCAL_INCLUDE_DIR' is used only by native compilers.  GCC doesn't
! install anything there.  It is normally `/usr/local/include'.  This is
  where local additions to a packaged system should place header files.
  
!  `CROSS_INCLUDE_DIR' is used only by cross compilers.  GCC doesn't
  install anything there.
  
!  `TOOL_INCLUDE_DIR' is used for both native and cross compilers.  It is
  the place for other packages to install header files that GCC will use.
! For a cross-compiler, this is the equivalent of `/usr/include'.  When
! you build a cross-compiler, `fixincludes' processes any header files in
  this directory.
  
  
--- 39354,39382 ----
  21 Standard Header File Directories
  ***********************************
  
! 'GCC_INCLUDE_DIR' means the same thing for native and cross.  It is
  where GCC stores its private include files, and also where GCC stores
! the fixed include files.  A cross compiled GCC runs 'fixincludes' on the
! header files in '$(tooldir)/include'.  (If the cross compilation header
! files need to be fixed, they must be installed before GCC is built.  If
! the cross compilation header files are already suitable for GCC, nothing
! special need be done).
  
!  'GPLUSPLUS_INCLUDE_DIR' means the same thing for native and cross.  It
! is where 'g++' looks first for header files.  The C++ library installs
  only target independent header files in that directory.
  
!  'LOCAL_INCLUDE_DIR' is used only by native compilers.  GCC doesn't
! install anything there.  It is normally '/usr/local/include'.  This is
  where local additions to a packaged system should place header files.
  
!  'CROSS_INCLUDE_DIR' is used only by cross compilers.  GCC doesn't
  install anything there.
  
!  'TOOL_INCLUDE_DIR' is used for both native and cross compilers.  It is
  the place for other packages to install header files that GCC will use.
! For a cross-compiler, this is the equivalent of '/usr/include'.  When
! you build a cross-compiler, 'fixincludes' processes any header files in
  this directory.
  
  
*************** implement precompiled headers.
*** 39833,39858 ****
  
   A full C++ parser would be too complicated for this task, so a limited
  subset of C++ is interpreted and special markers are used to determine
! what parts of the source to look at.  All `struct', `union' and
! `template' structure declarations that define data structures that are
  allocated under control of the garbage collector must be marked.  All
  global variables that hold pointers to garbage-collected memory must
! also be marked.  Finally, all global variables that need to be saved
! and restored by a precompiled header must be marked.  (The precompiled
  header mechanism can only save static variables if they're scalar.
! Complex data structures must be allocated in garbage-collected memory
! to be saved in a precompiled header.)
  
   The full format of a marker is
       GTY (([OPTION] [(PARAM)], [OPTION] [(PARAM)] ...))
!  but in most cases no options are needed.  The outer double parentheses
! are still necessary, though: `GTY(())'.  Markers can appear:
  
     * In a structure definition, before the open brace;
! 
!    * In a global variable declaration, after the keyword `static' or
!      `extern'; and
! 
     * In a structure field definition, before the name of the field.
  
   Here are some examples of marking simple data structures and globals.
--- 39392,39415 ----
  
   A full C++ parser would be too complicated for this task, so a limited
  subset of C++ is interpreted and special markers are used to determine
! what parts of the source to look at.  All 'struct', 'union' and
! 'template' structure declarations that define data structures that are
  allocated under control of the garbage collector must be marked.  All
  global variables that hold pointers to garbage-collected memory must
! also be marked.  Finally, all global variables that need to be saved and
! restored by a precompiled header must be marked.  (The precompiled
  header mechanism can only save static variables if they're scalar.
! Complex data structures must be allocated in garbage-collected memory to
! be saved in a precompiled header.)
  
   The full format of a marker is
       GTY (([OPTION] [(PARAM)], [OPTION] [(PARAM)] ...))
! but in most cases no options are needed.  The outer double parentheses
! are still necessary, though: 'GTY(())'.  Markers can appear:
  
     * In a structure definition, before the open brace;
!    * In a global variable declaration, after the keyword 'static' or
!      'extern'; and
     * In a structure field definition, before the name of the field.
  
   Here are some examples of marking simple data structures and globals.
*************** are still necessary, though: `GTY(())'.
*** 39870,39899 ****
       static GTY(()) struct TAG *LIST;   /* points to GC memory */
       static GTY(()) int COUNTER;        /* save counter in a PCH */
  
!  The parser understands simple typedefs such as `typedef struct TAG
! *NAME;' and `typedef int NAME;'.  These don't need to be marked.
  
!  Since `gengtype''s understanding of C++ is limited, there are several
  constructs and declarations that are not supported inside
  classes/structures marked for automatic GC code generation.  The
! following C++ constructs produce a `gengtype' error on
  structures/classes marked for automatic GC code generation:
  
     * Type definitions inside classes/structures are not supported.
- 
     * Enumerations inside classes/structures are not supported.
  
!  If you have a class or structure using any of the above constructs,
! you need to mark that class as `GTY ((user))' and provide your own
! marking routines (see section *note User GC:: for details).
  
   It is always valid to include function definitions inside classes.
! Those are always ignored by `gengtype', as it only cares about data
  members.
  
  * Menu:
  
! * GTY Options::         What goes inside a `GTY(())'.
  * Inheritance and GTY:: Adding GTY to a class hierarchy.
  * User GC::		Adding user-provided GC marking routines.
  * GGC Roots::           Making global variables GGC roots.
--- 39427,39455 ----
       static GTY(()) struct TAG *LIST;   /* points to GC memory */
       static GTY(()) int COUNTER;        /* save counter in a PCH */
  
!  The parser understands simple typedefs such as 'typedef struct TAG
! *NAME;' and 'typedef int NAME;'.  These don't need to be marked.
  
!  Since 'gengtype''s understanding of C++ is limited, there are several
  constructs and declarations that are not supported inside
  classes/structures marked for automatic GC code generation.  The
! following C++ constructs produce a 'gengtype' error on
  structures/classes marked for automatic GC code generation:
  
     * Type definitions inside classes/structures are not supported.
     * Enumerations inside classes/structures are not supported.
  
!  If you have a class or structure using any of the above constructs, you
! need to mark that class as 'GTY ((user))' and provide your own marking
! routines (see section *note User GC:: for details).
  
   It is always valid to include function definitions inside classes.
! Those are always ignored by 'gengtype', as it only cares about data
  members.
  
  * Menu:
  
! * GTY Options::         What goes inside a 'GTY(())'.
  * Inheritance and GTY:: Adding GTY to a class hierarchy.
  * User GC::		Adding user-provided GC marking routines.
  * GGC Roots::           Making global variables GGC roots.
*************** members.
*** 39904,39935 ****
  
  File: gccint.info,  Node: GTY Options,  Next: Inheritance and GTY,  Up: Type Information
  
! 22.1 The Inside of a `GTY(())'
  ==============================
  
! Sometimes the C code is not enough to fully describe the type
! structure.  Extra information can be provided with `GTY' options and
! additional markers.  Some options take a parameter, which may be either
! a string or a type name, depending on the parameter.  If an option
! takes no parameter, it is acceptable either to omit the parameter
! entirely, or to provide an empty string as a parameter.  For example,
! `GTY ((skip))' and `GTY ((skip ("")))' are equivalent.
  
   When the parameter is a string, often it is a fragment of C code.  Four
  special escapes may be used in these strings, to refer to pieces of the
  data structure being marked:
  
! `%h'
       The current structure.
! 
! `%1'
       The structure that immediately contains the current structure.
! 
! `%0'
       The outermost structure that contains the current structure.
! 
! `%a'
!      A partial expression of the form `[i1][i2]...' that indexes the
       array item currently being marked.
  
   For instance, suppose that you have a structure of the form
--- 39460,39488 ----
  
  File: gccint.info,  Node: GTY Options,  Next: Inheritance and GTY,  Up: Type Information
  
! 22.1 The Inside of a 'GTY(())'
  ==============================
  
! Sometimes the C code is not enough to fully describe the type structure.
! Extra information can be provided with 'GTY' options and additional
! markers.  Some options take a parameter, which may be either a string or
! a type name, depending on the parameter.  If an option takes no
! parameter, it is acceptable either to omit the parameter entirely, or to
! provide an empty string as a parameter.  For example, 'GTY ((skip))' and
! 'GTY ((skip ("")))' are equivalent.
  
   When the parameter is a string, often it is a fragment of C code.  Four
  special escapes may be used in these strings, to refer to pieces of the
  data structure being marked:
  
! '%h'
       The current structure.
! '%1'
       The structure that immediately contains the current structure.
! '%0'
       The outermost structure that contains the current structure.
! '%a'
!      A partial expression of the form '[i1][i2]...' that indexes the
       array item currently being marked.
  
   For instance, suppose that you have a structure of the form
*************** data structure being marked:
*** 39939,39947 ****
       struct B {
         struct A foo[12];
       };
!  and `b' is a variable of type `struct B'.  When marking `b.foo[11]',
! `%h' would expand to `b.foo[11]', `%0' and `%1' would both expand to
! `b', and `%a' would expand to `[11]'.
  
   As in ordinary C, adjacent strings will be concatenated; this is
  helpful when you have a complicated expression.
--- 39492,39500 ----
       struct B {
         struct A foo[12];
       };
! and 'b' is a variable of type 'struct B'.  When marking 'b.foo[11]',
! '%h' would expand to 'b.foo[11]', '%0' and '%1' would both expand to
! 'b', and '%a' would expand to '[11]'.
  
   As in ordinary C, adjacent strings will be concatenated; this is
  helpful when you have a complicated expression.
*************** helpful when you have a complicated expr
*** 39951,39957 ****
  
   The available options are:
  
! `length ("EXPRESSION")'
       There are two places the type machinery will need to be explicitly
       told the length of an array of non-atomic objects.  The first case
       is when a structure ends in a variable-length array, like this:
--- 39504,39511 ----
  
   The available options are:
  
! 'length ("EXPRESSION")'
! 
       There are two places the type machinery will need to be explicitly
       told the length of an array of non-atomic objects.  The first case
       is when a structure ends in a variable-length array, like this:
*************** helpful when you have a complicated expr
*** 39960,40008 ****
              rtx GTY ((length ("%h.num_elem"))) elem[1];
            };
  
!      In this case, the `length' option is used to override the specified
!      array length (which should usually be `1').  The parameter of the
       option is a fragment of C code that calculates the length.
  
       The second case is when a structure or a global variable contains a
       pointer to an array, like this:
            struct gimple_omp_for_iter * GTY((length ("%h.collapse"))) iter;
!      In this case, `iter' has been allocated by writing something like
              x->iter = ggc_alloc_cleared_vec_gimple_omp_for_iter (collapse);
!      and the `collapse' provides the length of the field.
  
!      This second use of `length' also works on global variables, like: static GTY((length("reg_known_value_size"))) rtx *reg_known_value;
  
!      Note that the `length' option is only meant for use with arrays of
!      non-atomic objects, that is, objects that contain pointers
!      pointing to other GTY-managed objects.  For other GC-allocated
!      arrays and strings you should use `atomic'.
  
! `skip'
!      If `skip' is applied to a field, the type machinery will ignore it.
       This is somewhat dangerous; the only safe use is in a union when
       one field really isn't ever used.
  
       Use this to mark types that need to be marked by user gc routines,
!      but are not refered to in a template argument.  So if you have
!      some user gc type T1 and a non user gc type T2 you can give T2 the
       for_user option so that the marking functions for T1 can call non
       mangled functions to mark T2.
  
! `desc ("EXPRESSION")'
! `tag ("CONSTANT")'
! `default'
!      The type machinery needs to be told which field of a `union' is
       currently active.  This is done by giving each field a constant
!      `tag' value, and then specifying a discriminator using `desc'.
!      The value of the expression given by `desc' is compared against
!      each `tag' value, each of which should be different.  If no `tag'
!      is matched, the field marked with `default' is used if there is
!      one, otherwise no field in the union will be marked.
  
!      In the `desc' option, the "current structure" is the union that it
!      discriminates.  Use `%1' to mean the structure containing it.
!      There are no escapes available to the `tag' option, since it is a
       constant.
  
       For example,
--- 39514,39565 ----
              rtx GTY ((length ("%h.num_elem"))) elem[1];
            };
  
!      In this case, the 'length' option is used to override the specified
!      array length (which should usually be '1').  The parameter of the
       option is a fragment of C code that calculates the length.
  
       The second case is when a structure or a global variable contains a
       pointer to an array, like this:
            struct gimple_omp_for_iter * GTY((length ("%h.collapse"))) iter;
!      In this case, 'iter' has been allocated by writing something like
              x->iter = ggc_alloc_cleared_vec_gimple_omp_for_iter (collapse);
!      and the 'collapse' provides the length of the field.
  
!      This second use of 'length' also works on global variables, like:
!      static GTY((length("reg_known_value_size"))) rtx *reg_known_value;
  
!      Note that the 'length' option is only meant for use with arrays of
!      non-atomic objects, that is, objects that contain pointers pointing
!      to other GTY-managed objects.  For other GC-allocated arrays and
!      strings you should use 'atomic'.
  
! 'skip'
! 
!      If 'skip' is applied to a field, the type machinery will ignore it.
       This is somewhat dangerous; the only safe use is in a union when
       one field really isn't ever used.
  
       Use this to mark types that need to be marked by user gc routines,
!      but are not refered to in a template argument.  So if you have some
!      user gc type T1 and a non user gc type T2 you can give T2 the
       for_user option so that the marking functions for T1 can call non
       mangled functions to mark T2.
  
! 'desc ("EXPRESSION")'
! 'tag ("CONSTANT")'
! 'default'
! 
!      The type machinery needs to be told which field of a 'union' is
       currently active.  This is done by giving each field a constant
!      'tag' value, and then specifying a discriminator using 'desc'.  The
!      value of the expression given by 'desc' is compared against each
!      'tag' value, each of which should be different.  If no 'tag' is
!      matched, the field marked with 'default' is used if there is one,
!      otherwise no field in the union will be marked.
  
!      In the 'desc' option, the "current structure" is the union that it
!      discriminates.  Use '%1' to mean the structure containing it.
!      There are no escapes available to the 'tag' option, since it is a
       constant.
  
       For example,
*************** helpful when you have a complicated expr
*** 40017,40051 ****
            };
  
       In this example, the value of BINDING_HAS_LEVEL_P when applied to a
!      `struct tree_binding *' is presumed to be 0 or 1.  If 1, the type
!      mechanism will treat the field `level' as being present and if 0,
!      will treat the field `scope' as being present.
  
!      The `desc' and `tag' options can also be used for inheritance to
       denote which subclass an instance is.  See *note Inheritance and
       GTY:: for more information.
  
! `cache'
!      When the `cache' option is applied to a global variable
       gt_clear_cache is called on that variable between the mark and
!      sweep phases of garbage collection.  The gt_clear_cache function
!      is free to mark blocks as used, or to clear pointers in the
!      variable.
  
! `deletable'
!      `deletable', when applied to a global variable, indicates that when
       garbage collection runs, there's no need to mark anything pointed
!      to by this variable, it can just be set to `NULL' instead.  This
!      is used to keep a list of free structures around for re-use.
  
! `maybe_undef'
!      When applied to a field, `maybe_undef' indicates that it's OK if
       the structure that this fields points to is never defined, so long
!      as this field is always `NULL'.  This is used to avoid requiring
       backends to define certain optional structures.  It doesn't work
       with language frontends.
  
! `nested_ptr (TYPE, "TO EXPRESSION", "FROM EXPRESSION")'
       The type machinery expects all pointers to point to the start of an
       object.  Sometimes for abstraction purposes it's convenient to have
       a pointer which points inside an object.  So long as it's possible
--- 39574,39611 ----
            };
  
       In this example, the value of BINDING_HAS_LEVEL_P when applied to a
!      'struct tree_binding *' is presumed to be 0 or 1.  If 1, the type
!      mechanism will treat the field 'level' as being present and if 0,
!      will treat the field 'scope' as being present.
  
!      The 'desc' and 'tag' options can also be used for inheritance to
       denote which subclass an instance is.  See *note Inheritance and
       GTY:: for more information.
  
! 'cache'
! 
!      When the 'cache' option is applied to a global variable
       gt_clear_cache is called on that variable between the mark and
!      sweep phases of garbage collection.  The gt_clear_cache function is
!      free to mark blocks as used, or to clear pointers in the variable.
  
! 'deletable'
! 
!      'deletable', when applied to a global variable, indicates that when
       garbage collection runs, there's no need to mark anything pointed
!      to by this variable, it can just be set to 'NULL' instead.  This is
!      used to keep a list of free structures around for re-use.
  
! 'maybe_undef'
! 
!      When applied to a field, 'maybe_undef' indicates that it's OK if
       the structure that this fields points to is never defined, so long
!      as this field is always 'NULL'.  This is used to avoid requiring
       backends to define certain optional structures.  It doesn't work
       with language frontends.
  
! 'nested_ptr (TYPE, "TO EXPRESSION", "FROM EXPRESSION")'
! 
       The type machinery expects all pointers to point to the start of an
       object.  Sometimes for abstraction purposes it's convenient to have
       a pointer which points inside an object.  So long as it's possible
*************** helpful when you have a complicated expr
*** 40053,40145 ****
       pointers can still be used.  TYPE is the type of the original
       object, the TO EXPRESSION returns the pointer given the original
       object, and the FROM EXPRESSION returns the original object given
!      the pointer.  The pointer will be available using the `%h' escape.
  
- `chain_next ("EXPRESSION")'
- `chain_prev ("EXPRESSION")'
- `chain_circular ("EXPRESSION")'
       It's helpful for the type machinery to know if objects are often
       chained together in long lists; this lets it generate code that
       uses less stack space by iterating along the list instead of
!      recursing down it.  `chain_next' is an expression for the next
!      item in the list, `chain_prev' is an expression for the previous
!      item.  For singly linked lists, use only `chain_next'; for doubly
!      linked lists, use both.  The machinery requires that taking the
!      next item of the previous item gives the original item.
!      `chain_circular' is similar to `chain_next', but can be used for
!      circular single linked lists.
  
- `reorder ("FUNCTION NAME")'
       Some data structures depend on the relative ordering of pointers.
       If the precompiled header machinery needs to change that ordering,
!      it will call the function referenced by the `reorder' option,
!      before changing the pointers in the object that's pointed to by
!      the field the option applies to.  The function must take four
       arguments, with the signature
!      `void *, void *, gt_pointer_operator, void *'.  The first
!      parameter is a pointer to the structure that contains the object
!      being updated, or the object itself if there is no containing
!      structure.  The second parameter is a cookie that should be
!      ignored.  The third parameter is a routine that, given a pointer,
!      will update it to its correct new value.  The fourth parameter is
!      a cookie that must be passed to the second parameter.
  
       PCH cannot handle data structures that depend on the absolute
!      values of pointers.  `reorder' functions can be expensive.  When
!      possible, it is better to depend on properties of the data, like
!      an ID number or the hash of a string instead.
  
! `atomic'
!      The `atomic' option can only be used with pointers.  It informs
!      the GC machinery that the memory that the pointer points to does
!      not contain any pointers, and hence it should be treated by the GC
!      and PCH machinery as an "atomic" block of memory that does not
!      need to be examined when scanning memory for pointers.  In
!      particular, the machinery will not scan that memory for pointers
!      to mark them as reachable (when marking pointers for GC) or to
!      relocate them (when writing a PCH file).
  
!      The `atomic' option differs from the `skip' option.  `atomic'
!      keeps the memory under Garbage Collection, but makes the GC ignore
!      the contents of the memory.  `skip' is more drastic in that it
!      causes the pointer and the memory to be completely ignored by the
!      Garbage Collector.  So, memory marked as `atomic' is automatically
!      freed when no longer reachable, while memory marked as `skip' is
!      not.
  
!      The `atomic' option must be used with great care, because all
!      sorts of problem can occur if used incorrectly, that is, if the
!      memory the pointer points to does actually contain a pointer.
  
       Here is an example of how to use it:
            struct GTY(()) my_struct {
              int number_of_elements;
              unsigned int * GTY ((atomic)) elements;
            };
!      In this case, `elements' is a pointer under GC, and the memory it
       points to needs to be allocated using the Garbage Collector, and
       will be freed automatically by the Garbage Collector when it is no
!      longer referenced.  But the memory that the pointer points to is
!      an array of `unsigned int' elements, and the GC must not try to
!      scan it to find pointers to mark or relocate, which is why it is
!      marked with the `atomic' option.
  
       Note that, currently, global variables can not be marked with
!      `atomic'; only fields of a struct can.  This is a known
!      limitation.  It would be useful to be able to mark global pointers
!      with `atomic' to make the PCH machinery aware of them so that they
!      are saved and restored correctly to PCH files.
  
! `special ("NAME")'
!      The `special' option is used to mark types that have to be dealt
       with by special case machinery.  The parameter is the name of the
!      special case.  See `gengtype.c' for further details.  Avoid adding
       new special cases unless there is no other alternative.
  
! `user'
!      The `user' option indicates that the code to mark structure fields
!      is completely handled by user-provided routines.  See section
!      *note User GC:: for details on what functions need to be provided.
  
  
  File: gccint.info,  Node: Inheritance and GTY,  Next: User GC,  Prev: GTY Options,  Up: Type Information
--- 39613,39709 ----
       pointers can still be used.  TYPE is the type of the original
       object, the TO EXPRESSION returns the pointer given the original
       object, and the FROM EXPRESSION returns the original object given
!      the pointer.  The pointer will be available using the '%h' escape.
! 
! 'chain_next ("EXPRESSION")'
! 'chain_prev ("EXPRESSION")'
! 'chain_circular ("EXPRESSION")'
  
       It's helpful for the type machinery to know if objects are often
       chained together in long lists; this lets it generate code that
       uses less stack space by iterating along the list instead of
!      recursing down it.  'chain_next' is an expression for the next item
!      in the list, 'chain_prev' is an expression for the previous item.
!      For singly linked lists, use only 'chain_next'; for doubly linked
!      lists, use both.  The machinery requires that taking the next item
!      of the previous item gives the original item.  'chain_circular' is
!      similar to 'chain_next', but can be used for circular single linked
!      lists.
! 
! 'reorder ("FUNCTION NAME")'
  
       Some data structures depend on the relative ordering of pointers.
       If the precompiled header machinery needs to change that ordering,
!      it will call the function referenced by the 'reorder' option,
!      before changing the pointers in the object that's pointed to by the
!      field the option applies to.  The function must take four
       arguments, with the signature
!      'void *, void *, gt_pointer_operator, void *'.  The first parameter
!      is a pointer to the structure that contains the object being
!      updated, or the object itself if there is no containing structure.
!      The second parameter is a cookie that should be ignored.  The third
!      parameter is a routine that, given a pointer, will update it to its
!      correct new value.  The fourth parameter is a cookie that must be
!      passed to the second parameter.
  
       PCH cannot handle data structures that depend on the absolute
!      values of pointers.  'reorder' functions can be expensive.  When
!      possible, it is better to depend on properties of the data, like an
!      ID number or the hash of a string instead.
  
! 'atomic'
  
!      The 'atomic' option can only be used with pointers.  It informs the
!      GC machinery that the memory that the pointer points to does not
!      contain any pointers, and hence it should be treated by the GC and
!      PCH machinery as an "atomic" block of memory that does not need to
!      be examined when scanning memory for pointers.  In particular, the
!      machinery will not scan that memory for pointers to mark them as
!      reachable (when marking pointers for GC) or to relocate them (when
!      writing a PCH file).
  
!      The 'atomic' option differs from the 'skip' option.  'atomic' keeps
!      the memory under Garbage Collection, but makes the GC ignore the
!      contents of the memory.  'skip' is more drastic in that it causes
!      the pointer and the memory to be completely ignored by the Garbage
!      Collector.  So, memory marked as 'atomic' is automatically freed
!      when no longer reachable, while memory marked as 'skip' is not.
! 
!      The 'atomic' option must be used with great care, because all sorts
!      of problem can occur if used incorrectly, that is, if the memory
!      the pointer points to does actually contain a pointer.
  
       Here is an example of how to use it:
            struct GTY(()) my_struct {
              int number_of_elements;
              unsigned int * GTY ((atomic)) elements;
            };
!      In this case, 'elements' is a pointer under GC, and the memory it
       points to needs to be allocated using the Garbage Collector, and
       will be freed automatically by the Garbage Collector when it is no
!      longer referenced.  But the memory that the pointer points to is an
!      array of 'unsigned int' elements, and the GC must not try to scan
!      it to find pointers to mark or relocate, which is why it is marked
!      with the 'atomic' option.
  
       Note that, currently, global variables can not be marked with
!      'atomic'; only fields of a struct can.  This is a known limitation.
!      It would be useful to be able to mark global pointers with 'atomic'
!      to make the PCH machinery aware of them so that they are saved and
!      restored correctly to PCH files.
  
! 'special ("NAME")'
! 
!      The 'special' option is used to mark types that have to be dealt
       with by special case machinery.  The parameter is the name of the
!      special case.  See 'gengtype.c' for further details.  Avoid adding
       new special cases unless there is no other alternative.
  
! 'user'
! 
!      The 'user' option indicates that the code to mark structure fields
!      is completely handled by user-provided routines.  See section *note
!      User GC:: for details on what functions need to be provided.
  
  
  File: gccint.info,  Node: Inheritance and GTY,  Next: User GC,  Prev: GTY Options,  Up: Type Information
*************** this to have gengtype autogenerate marki
*** 40153,40161 ****
     * There must be a concrete base class, with a discriminator
       expression that can be used to identify which subclass an instance
       is.
- 
     * Only single inheritance is used.
- 
     * None of the classes within the hierarchy are templates.
  
   If your class hierarchy does not fit in this pattern, you must use
--- 39717,39723 ----
*************** this to have gengtype autogenerate marki
*** 40165,40171 ****
  "desc" option.  Each concrete subclass must use the "tag" option to
  identify which value of the discriminator it corresponds to.
  
!  Every class in the hierarchy must have a `GTY(())' marker, as gengtype
  will only attempt to parse classes that have such a marker (1).
  
       class GTY((desc("%h.kind"), tag("0"))) example_base
--- 39727,39733 ----
  "desc" option.  Each concrete subclass must use the "tag" option to
  identify which value of the discriminator it corresponds to.
  
!  Every class in the hierarchy must have a 'GTY(())' marker, as gengtype
  will only attempt to parse classes that have such a marker (1).
  
       class GTY((desc("%h.kind"), tag("0"))) example_base
*************** will only attempt to parse classes that
*** 40187,40200 ****
           tree c;
       };
  
!  The generated marking routines for the above will contain a "switch"
! on "kind", visiting all appropriate fields.  For example, if kind is 2,
! it will cast to "some_other_subclass" and visit fields a, b, and c.
  
!  ---------- Footnotes ----------
  
!  (1) Classes lacking such a marker will not be identified as being part
! of the hierarchy, and so the marking routines will not handle them,
  leading to a assertion failure within the marking routines due to an
  unknown tag value (assuming that assertions are enabled).
  
--- 39749,39762 ----
           tree c;
       };
  
!  The generated marking routines for the above will contain a "switch" on
! "kind", visiting all appropriate fields.  For example, if kind is 2, it
! will cast to "some_other_subclass" and visit fields a, b, and c.
  
!    ---------- Footnotes ----------
  
!    (1) Classes lacking such a marker will not be identified as being
! part of the hierarchy, and so the marking routines will not handle them,
  leading to a assertion failure within the marking routines due to an
  unknown tag value (assuming that assertions are enabled).
  
*************** File: gccint.info,  Node: User GC,  Next
*** 40204,40216 ****
  22.3 Support for user-provided GC marking routines
  ==================================================
  
! The garbage collector supports types for which no automatic marking
! code is generated.  For these types, the user is required to provide
! three functions: one to act as a marker for garbage collection, and two
  functions to act as marker and pointer walker for pre-compiled headers.
  
!  Given a structure `struct GTY((user)) my_struct', the following
! functions should be defined to mark `my_struct':
  
       void gt_ggc_mx (my_struct *p)
       {
--- 39766,39778 ----
  22.3 Support for user-provided GC marking routines
  ==================================================
  
! The garbage collector supports types for which no automatic marking code
! is generated.  For these types, the user is required to provide three
! functions: one to act as a marker for garbage collection, and two
  functions to act as marker and pointer walker for pre-compiled headers.
  
!  Given a structure 'struct GTY((user)) my_struct', the following
! functions should be defined to mark 'my_struct':
  
       void gt_ggc_mx (my_struct *p)
       {
*************** functions should be defined to mark `my_
*** 40230,40259 ****
         op (&(tp->fld), cookie);
       }
  
!  In general, each marker `M' should call `M' for every pointer field in
  the structure.  Fields that are not allocated in GC or are not pointers
  must be ignored.
  
!  For embedded lists (e.g., structures with a `next' or `prev' pointer),
  the marker must follow the chain and mark every element in it.
  
!  Note that the rules for the pointer walker `gt_pch_nx (my_struct *,
! gt_pointer_operator, void *)' are slightly different.  In this case,
! the operation `op' must be applied to the _address_ of every pointer
! field.
  
  22.3.1 User-provided marking routines for template types
  --------------------------------------------------------
  
! When a template type `TP' is marked with `GTY', all instances of that
! type are considered user-provided types.  This means that the
! individual instances of `TP' do not need to be marked with `GTY'.  The
! user needs to provide template functions to mark all the fields of the
! type.
  
!  The following code snippets represent all the functions that need to
! be provided. Note that type `TP' may reference to more than one type.
! In these snippets, there is only one type `T', but there could be more.
  
       template<typename T>
       void gt_ggc_mx (TP<T> *tp)
--- 39792,39819 ----
         op (&(tp->fld), cookie);
       }
  
!  In general, each marker 'M' should call 'M' for every pointer field in
  the structure.  Fields that are not allocated in GC or are not pointers
  must be ignored.
  
!  For embedded lists (e.g., structures with a 'next' or 'prev' pointer),
  the marker must follow the chain and mark every element in it.
  
!  Note that the rules for the pointer walker 'gt_pch_nx (my_struct *,
! gt_pointer_operator, void *)' are slightly different.  In this case, the
! operation 'op' must be applied to the _address_ of every pointer field.
  
  22.3.1 User-provided marking routines for template types
  --------------------------------------------------------
  
! When a template type 'TP' is marked with 'GTY', all instances of that
! type are considered user-provided types.  This means that the individual
! instances of 'TP' do not need to be marked with 'GTY'.  The user needs
! to provide template functions to mark all the fields of the type.
  
!  The following code snippets represent all the functions that need to be
! provided.  Note that type 'TP' may reference to more than one type.  In
! these snippets, there is only one type 'T', but there could be more.
  
       template<typename T>
       void gt_ggc_mx (TP<T> *tp)
*************** In these snippets, there is only one typ
*** 40291,40308 ****
         gt_pch_nx (&(tp->fld), op, cookie);
       }
  
!  Support for user-defined types is currently limited. The following
  restrictions apply:
  
!   1. Type `TP' and all the argument types `T' must be marked with `GTY'.
  
!   2. Type `TP' can only have type names in its argument list.
  
!   3. The pointer walker functions are different for `TP<T>' and `TP<T
!      *>'. In the case of `TP<T>', references to `T' must be handled by
!      calling `gt_pch_nx' (which will, in turn, walk all the pointers
!      inside fields of `T').  In the case of `TP<T *>', references to `T
!      *' must be handled by calling the `op' function on the address of
       the pointer (see the code snippets above).
  
  
--- 39851,39868 ----
         gt_pch_nx (&(tp->fld), op, cookie);
       }
  
!  Support for user-defined types is currently limited.  The following
  restrictions apply:
  
!   1. Type 'TP' and all the argument types 'T' must be marked with 'GTY'.
  
!   2. Type 'TP' can only have type names in its argument list.
  
!   3. The pointer walker functions are different for 'TP<T>' and 'TP<T
!      *>'.  In the case of 'TP<T>', references to 'T' must be handled by
!      calling 'gt_pch_nx' (which will, in turn, walk all the pointers
!      inside fields of 'T').  In the case of 'TP<T *>', references to 'T
!      *' must be handled by calling the 'op' function on the address of
       the pointer (see the code snippets above).
  
  
*************** In addition to keeping track of types, t
*** 40315,40328 ****
  the global variables ("roots") that the garbage collector starts at.
  Roots must be declared using one of the following syntaxes:
  
!    * `extern GTY(([OPTIONS])) TYPE NAME;'
! 
!    * `static GTY(([OPTIONS])) TYPE NAME;'
!  The syntax
!    * `GTY(([OPTIONS])) TYPE NAME;'
!  is _not_ accepted.  There should be an `extern' declaration of such a
  variable in a header somewhere--mark that, not the definition.  Or, if
! the variable is only used in one file, make it `static'.
  
  
  File: gccint.info,  Node: Files,  Next: Invoking the garbage collector,  Prev: GGC Roots,  Up: Type Information
--- 39875,39887 ----
  the global variables ("roots") that the garbage collector starts at.
  Roots must be declared using one of the following syntaxes:
  
!    * 'extern GTY(([OPTIONS])) TYPE NAME;'
!    * 'static GTY(([OPTIONS])) TYPE NAME;'
! The syntax
!    * 'GTY(([OPTIONS])) TYPE NAME;'
! is _not_ accepted.  There should be an 'extern' declaration of such a
  variable in a header somewhere--mark that, not the definition.  Or, if
! the variable is only used in one file, make it 'static'.
  
  
  File: gccint.info,  Node: Files,  Next: Invoking the garbage collector,  Prev: GGC Roots,  Up: Type Information
*************** File: gccint.info,  Node: Files,  Next:
*** 40330,40386 ****
  22.5 Source Files Containing Type Information
  =============================================
  
! Whenever you add `GTY' markers to a source file that previously had
! none, or create a new source file containing `GTY' markers, there are
  three things you need to do:
  
    1. You need to add the file to the list of source files the type
       machinery scans.  There are four cases:
  
         a. For a back-end file, this is usually done automatically; if
!           not, you should add it to `target_gtfiles' in the appropriate
!           port's entries in `config.gcc'.
  
         b. For files shared by all front ends, add the filename to the
!           `GTFILES' variable in `Makefile.in'.
  
         c. For files that are part of one front end, add the filename to
!           the `gtfiles' variable defined in the appropriate
!           `config-lang.in'.  Headers should appear before non-headers
!           in this list.
  
         d. For files that are part of some but not all front ends, add
!           the filename to the `gtfiles' variable of _all_ the front ends
            that use it.
  
    2. If the file was a header file, you'll need to check that it's
       included in the right place to be visible to the generated files.
!      For a back-end header file, this should be done automatically.
!      For a front-end header file, it needs to be included by the same
!      file that includes `gtype-LANG.h'.  For other header files, it
!      needs to be included in `gtype-desc.c', which is a generated file,
!      so add it to `ifiles' in `open_base_file' in `gengtype.c'.
  
       For source files that aren't header files, the machinery will
       generate a header file that should be included in the source file
!      you just changed.  The file will be called `gt-PATH.h' where PATH
!      is the pathname relative to the `gcc' directory with slashes
       replaced by -, so for example the header file to be included in
!      `cp/parser.c' is called `gt-cp-parser.c'.  The generated header
       file should be included after everything else in the source file.
       Don't forget to mention this file as a dependency in the
!      `Makefile'!
! 
  
   For language frontends, there is another file that needs to be included
! somewhere.  It will be called `gtype-LANG.h', where LANG is the name of
  the subdirectory the language is contained in.
  
!  Plugins can add additional root tables.  Run the `gengtype' utility in
! plugin mode as `gengtype -P pluginout.h SOURCE-DIR FILE-LIST PLUGIN*.C'
! with your plugin files PLUGIN*.C using `GTY' to generate the
! PLUGINOUT.H file.  The GCC build tree is needed to be present in that
! mode.
  
  
  File: gccint.info,  Node: Invoking the garbage collector,  Next: Troubleshooting,  Prev: Files,  Up: Type Information
--- 39889,39943 ----
  22.5 Source Files Containing Type Information
  =============================================
  
! Whenever you add 'GTY' markers to a source file that previously had
! none, or create a new source file containing 'GTY' markers, there are
  three things you need to do:
  
    1. You need to add the file to the list of source files the type
       machinery scans.  There are four cases:
  
         a. For a back-end file, this is usually done automatically; if
!           not, you should add it to 'target_gtfiles' in the appropriate
!           port's entries in 'config.gcc'.
  
         b. For files shared by all front ends, add the filename to the
!           'GTFILES' variable in 'Makefile.in'.
  
         c. For files that are part of one front end, add the filename to
!           the 'gtfiles' variable defined in the appropriate
!           'config-lang.in'.  Headers should appear before non-headers in
!           this list.
  
         d. For files that are part of some but not all front ends, add
!           the filename to the 'gtfiles' variable of _all_ the front ends
            that use it.
  
    2. If the file was a header file, you'll need to check that it's
       included in the right place to be visible to the generated files.
!      For a back-end header file, this should be done automatically.  For
!      a front-end header file, it needs to be included by the same file
!      that includes 'gtype-LANG.h'.  For other header files, it needs to
!      be included in 'gtype-desc.c', which is a generated file, so add it
!      to 'ifiles' in 'open_base_file' in 'gengtype.c'.
  
       For source files that aren't header files, the machinery will
       generate a header file that should be included in the source file
!      you just changed.  The file will be called 'gt-PATH.h' where PATH
!      is the pathname relative to the 'gcc' directory with slashes
       replaced by -, so for example the header file to be included in
!      'cp/parser.c' is called 'gt-cp-parser.c'.  The generated header
       file should be included after everything else in the source file.
       Don't forget to mention this file as a dependency in the
!      'Makefile'!
  
   For language frontends, there is another file that needs to be included
! somewhere.  It will be called 'gtype-LANG.h', where LANG is the name of
  the subdirectory the language is contained in.
  
!  Plugins can add additional root tables.  Run the 'gengtype' utility in
! plugin mode as 'gengtype -P pluginout.h SOURCE-DIR FILE-LIST PLUGIN*.C'
! with your plugin files PLUGIN*.C using 'GTY' to generate the PLUGINOUT.H
! file.  The GCC build tree is needed to be present in that mode.
  
  
  File: gccint.info,  Node: Invoking the garbage collector,  Next: Troubleshooting,  Prev: Files,  Up: Type Information
*************** File: gccint.info,  Node: Invoking the g
*** 40388,40409 ****
  22.6 How to invoke the garbage collector
  ========================================
  
! The GCC garbage collector GGC is only invoked explicitly. In contrast
  with many other garbage collectors, it is not implicitly invoked by
! allocation routines when a lot of memory has been consumed. So the only
! way to have GGC reclaim storage is to call the `ggc_collect' function
! explicitly.  This call is an expensive operation, as it may have to
! scan the entire heap.  Beware that local variables (on the GCC call
! stack) are not followed by such an invocation (as many other garbage
! collectors do): you should reference all your data from static or
! external `GTY'-ed variables, and it is advised to call `ggc_collect'
! with a shallow call stack.  The GGC is an exact mark and sweep garbage
! collector (so it does not scan the call stack for pointers).  In
! practice GCC passes don't often call `ggc_collect' themselves, because
! it is called by the pass manager between passes.
  
!  At the time of the `ggc_collect' call all pointers in the GC-marked
! structures must be valid or `NULL'.  In practice this means that there
  should not be uninitialized pointer fields in the structures even if
  your code never reads or writes those fields at a particular instance.
  One way to ensure this is to use cleared versions of allocators unless
--- 39945,39966 ----
  22.6 How to invoke the garbage collector
  ========================================
  
! The GCC garbage collector GGC is only invoked explicitly.  In contrast
  with many other garbage collectors, it is not implicitly invoked by
! allocation routines when a lot of memory has been consumed.  So the only
! way to have GGC reclaim storage is to call the 'ggc_collect' function
! explicitly.  This call is an expensive operation, as it may have to scan
! the entire heap.  Beware that local variables (on the GCC call stack)
! are not followed by such an invocation (as many other garbage collectors
! do): you should reference all your data from static or external 'GTY'-ed
! variables, and it is advised to call 'ggc_collect' with a shallow call
! stack.  The GGC is an exact mark and sweep garbage collector (so it does
! not scan the call stack for pointers).  In practice GCC passes don't
! often call 'ggc_collect' themselves, because it is called by the pass
! manager between passes.
  
!  At the time of the 'ggc_collect' call all pointers in the GC-marked
! structures must be valid or 'NULL'.  In practice this means that there
  should not be uninitialized pointer fields in the structures even if
  your code never reads or writes those fields at a particular instance.
  One way to ensure this is to use cleared versions of allocators unless
*************** With the current garbage collector imple
*** 40419,40437 ****
  show up as GCC compilation errors.  Some of the most commonly
  encountered issues are described below.
  
!    * Gengtype does not produce allocators for a `GTY'-marked type.
       Gengtype checks if there is at least one possible path from GC
       roots to at least one instance of each type before outputting
!      allocators.  If there is no such path, the `GTY' markers will be
       ignored and no allocators will be output.  Solve this by making
       sure that there exists at least one such path.  If creating it is
       unfeasible or raises a "code smell", consider if you really must
       use GC for allocating such type.
  
!    * Link-time errors about undefined `gt_ggc_r_foo_bar' and
!      similarly-named symbols.  Check if your `foo_bar' source file has
!      `#include "gt-foo_bar.h"' as its very last line.
! 
  
  
  File: gccint.info,  Node: Plugins,  Next: LTO,  Prev: Type Information,  Up: Top
--- 39976,39993 ----
  show up as GCC compilation errors.  Some of the most commonly
  encountered issues are described below.
  
!    * Gengtype does not produce allocators for a 'GTY'-marked type.
       Gengtype checks if there is at least one possible path from GC
       roots to at least one instance of each type before outputting
!      allocators.  If there is no such path, the 'GTY' markers will be
       ignored and no allocators will be output.  Solve this by making
       sure that there exists at least one such path.  If creating it is
       unfeasible or raises a "code smell", consider if you really must
       use GC for allocating such type.
  
!    * Link-time errors about undefined 'gt_ggc_r_foo_bar' and
!      similarly-named symbols.  Check if your 'foo_bar' source file has
!      '#include "gt-foo_bar.h"' as its very last line.
  
  
  File: gccint.info,  Node: Plugins,  Next: LTO,  Prev: Type Information,  Up: Top
*************** File: gccint.info,  Node: Plugins loadin
*** 40467,40489 ****
  23.1 Loading Plugins
  ====================
  
! Plugins are supported on platforms that support `-ldl -rdynamic'.  They
! are loaded by the compiler using `dlopen' and invoked at pre-determined
  locations in the compilation process.
  
   Plugins are loaded with
  
!  `-fplugin=/path/to/NAME.so' `-fplugin-arg-NAME-KEY1[=VALUE1]'
  
!  The plugin arguments are parsed by GCC and passed to respective
! plugins as key-value pairs. Multiple plugins can be invoked by
! specifying multiple `-fplugin' arguments.
  
   A plugin can be simply given by its short name (no dots or slashes).
! When simply passing `-fplugin=NAME', the plugin is loaded from the
! `plugin' directory, so `-fplugin=NAME' is the same as `-fplugin=`gcc
! -print-file-name=plugin`/NAME.so', using backquote shell syntax to
! query the `plugin' directory.
  
  
  File: gccint.info,  Node: Plugin API,  Next: Plugins pass,  Prev: Plugins loading,  Up: Plugins
--- 40023,40045 ----
  23.1 Loading Plugins
  ====================
  
! Plugins are supported on platforms that support '-ldl -rdynamic'.  They
! are loaded by the compiler using 'dlopen' and invoked at pre-determined
  locations in the compilation process.
  
   Plugins are loaded with
  
!  '-fplugin=/path/to/NAME.so' '-fplugin-arg-NAME-KEY1[=VALUE1]'
  
!  The plugin arguments are parsed by GCC and passed to respective plugins
! as key-value pairs.  Multiple plugins can be invoked by specifying
! multiple '-fplugin' arguments.
  
   A plugin can be simply given by its short name (no dots or slashes).
! When simply passing '-fplugin=NAME', the plugin is loaded from the
! 'plugin' directory, so '-fplugin=NAME' is the same as '-fplugin=`gcc
! -print-file-name=plugin`/NAME.so', using backquote shell syntax to query
! the 'plugin' directory.
  
  
  File: gccint.info,  Node: Plugin API,  Next: Plugins pass,  Prev: Plugins loading,  Up: Plugins
*************** File: gccint.info,  Node: Plugin API,  N
*** 40492,40507 ****
  ===============
  
  Plugins are activated by the compiler at specific events as defined in
! `gcc-plugin.h'.  For each event of interest, the plugin should call
! `register_callback' specifying the name of the event and address of the
  callback function that will handle that event.
  
!  The header `gcc-plugin.h' must be the first gcc header to be included.
  
  23.2.1 Plugin license check
  ---------------------------
  
! Every plugin should define the global symbol `plugin_is_GPL_compatible'
  to assert that it has been licensed under a GPL-compatible license.  If
  this symbol does not exist, the compiler will emit a fatal error and
  exit with the error message:
--- 40048,40063 ----
  ===============
  
  Plugins are activated by the compiler at specific events as defined in
! 'gcc-plugin.h'.  For each event of interest, the plugin should call
! 'register_callback' specifying the name of the event and address of the
  callback function that will handle that event.
  
!  The header 'gcc-plugin.h' must be the first gcc header to be included.
  
  23.2.1 Plugin license check
  ---------------------------
  
! Every plugin should define the global symbol 'plugin_is_GPL_compatible'
  to assert that it has been licensed under a GPL-compatible license.  If
  this symbol does not exist, the compiler will emit a fatal error and
  exit with the error message:
*************** exit with the error message:
*** 40511,40539 ****
       compilation terminated
  
   The declared type of the symbol should be int, to match a forward
! declaration in `gcc-plugin.h' that suppresses C++ mangling.  It does
! not need to be in any allocated section, though.  The compiler merely
! asserts that the symbol exists in the global scope.  Something like
! this is enough:
  
       int plugin_is_GPL_compatible;
  
  23.2.2 Plugin initialization
  ----------------------------
  
! Every plugin should export a function called `plugin_init' that is
! called right after the plugin is loaded. This function is responsible
  for registering all the callbacks required by the plugin and do any
  other required initialization.
  
!  This function is called from `compile_file' right before invoking the
! parser.  The arguments to `plugin_init' are:
! 
!    * `plugin_info': Plugin invocation information.
  
!    * `version': GCC version.
  
!  The `plugin_info' struct is defined as follows:
  
       struct plugin_name_args
       {
--- 40067,40094 ----
       compilation terminated
  
   The declared type of the symbol should be int, to match a forward
! declaration in 'gcc-plugin.h' that suppresses C++ mangling.  It does not
! need to be in any allocated section, though.  The compiler merely
! asserts that the symbol exists in the global scope.  Something like this
! is enough:
  
       int plugin_is_GPL_compatible;
  
  23.2.2 Plugin initialization
  ----------------------------
  
! Every plugin should export a function called 'plugin_init' that is
! called right after the plugin is loaded.  This function is responsible
  for registering all the callbacks required by the plugin and do any
  other required initialization.
  
!  This function is called from 'compile_file' right before invoking the
! parser.  The arguments to 'plugin_init' are:
  
!    * 'plugin_info': Plugin invocation information.
!    * 'version': GCC version.
  
!  The 'plugin_info' struct is defined as follows:
  
       struct plugin_name_args
       {
*************** parser.  The arguments to `plugin_init'
*** 40548,40554 ****
         const char *help;             /* Help string provided by plugin. */
       }
  
!  If initialization fails, `plugin_init' must return a non-zero value.
  Otherwise, it should return 0.
  
   The version of the GCC compiler loading the plugin is described by the
--- 40103,40109 ----
         const char *help;             /* Help string provided by plugin. */
       }
  
!  If initialization fails, 'plugin_init' must return a non-zero value.
  Otherwise, it should return 0.
  
   The version of the GCC compiler loading the plugin is described by the
*************** following structure:
*** 40563,40574 ****
         const char *configuration_arguments;
       };
  
!  The function `plugin_default_version_check' takes two pointers to such
! structure and compare them field by field. It can be used by the
! plugin's `plugin_init' function.
  
   The version of GCC used to compile the plugin can be found in the
! symbol `gcc_version' defined in the header `plugin-version.h'. The
  recommended version check to perform looks like
  
       #include "plugin-version.h"
--- 40118,40129 ----
         const char *configuration_arguments;
       };
  
!  The function 'plugin_default_version_check' takes two pointers to such
! structure and compare them field by field.  It can be used by the
! plugin's 'plugin_init' function.
  
   The version of GCC used to compile the plugin can be found in the
! symbol 'gcc_version' defined in the header 'plugin-version.h'.  The
  recommended version check to perform looks like
  
       #include "plugin-version.h"
*************** Callback functions have the following pr
*** 40647,40680 ****
  
   In addition, plugins can also look up the enumerator of a named event,
  and / or generate new events dynamically, by calling the function
! `get_named_event_id'.
  
!  To register a callback, the plugin calls `register_callback' with the
  arguments:
  
!    * `char *name': Plugin name.
! 
!    * `int event': The event code.
! 
!    * `plugin_callback_func callback': The function that handles `event'.
! 
!    * `void *user_data': Pointer to plugin-specific data.
  
   For the PLUGIN_PASS_MANAGER_SETUP, PLUGIN_INFO, and
! PLUGIN_REGISTER_GGC_ROOTS pseudo-events the `callback' should be null,
! and the `user_data' is specific.
  
!  When the PLUGIN_PRAGMAS event is triggered (with a null pointer as
! data from GCC), plugins may register their own pragmas.  Notice that
! pragmas are not available from `lto1', so plugins used with `-flto'
! option to GCC during link-time optimization cannot use pragmas and do
! not even see functions like `c_register_pragma' or `pragma_lex'.
  
!  The PLUGIN_INCLUDE_FILE event, with a `const char*' file path as GCC
! data, is triggered for processing of `#include' or `#line' directives.
  
   The PLUGIN_FINISH event is the last time that plugins can call GCC
! functions, notably emit diagnostics with `warning', `error' etc.
  
  
  File: gccint.info,  Node: Plugins pass,  Next: Plugins GC,  Prev: Plugin API,  Up: Plugins
--- 40202,40232 ----
  
   In addition, plugins can also look up the enumerator of a named event,
  and / or generate new events dynamically, by calling the function
! 'get_named_event_id'.
  
!  To register a callback, the plugin calls 'register_callback' with the
  arguments:
  
!    * 'char *name': Plugin name.
!    * 'int event': The event code.
!    * 'plugin_callback_func callback': The function that handles 'event'.
!    * 'void *user_data': Pointer to plugin-specific data.
  
   For the PLUGIN_PASS_MANAGER_SETUP, PLUGIN_INFO, and
! PLUGIN_REGISTER_GGC_ROOTS pseudo-events the 'callback' should be null,
! and the 'user_data' is specific.
  
!  When the PLUGIN_PRAGMAS event is triggered (with a null pointer as data
! from GCC), plugins may register their own pragmas.  Notice that pragmas
! are not available from 'lto1', so plugins used with '-flto' option to
! GCC during link-time optimization cannot use pragmas and do not even see
! functions like 'c_register_pragma' or 'pragma_lex'.
  
!  The PLUGIN_INCLUDE_FILE event, with a 'const char*' file path as GCC
! data, is triggered for processing of '#include' or '#line' directives.
  
   The PLUGIN_FINISH event is the last time that plugins can call GCC
! functions, notably emit diagnostics with 'warning', 'error' etc.
  
  
  File: gccint.info,  Node: Plugins pass,  Next: Plugins GC,  Prev: Plugin API,  Up: Plugins
*************** File: gccint.info,  Node: Plugins pass,
*** 40682,40695 ****
  23.3 Interacting with the pass manager
  ======================================
  
! There needs to be a way to add/reorder/remove passes dynamically. This
  is useful for both analysis plugins (plugging in after a certain pass
  such as CFG or an IPA pass) and optimization plugins.
  
   Basic support for inserting new passes or replacing existing passes is
! provided. A plugin registers a new pass with GCC by calling
! `register_callback' with the `PLUGIN_PASS_MANAGER_SETUP' event and a
! pointer to a `struct register_pass_info' object defined as follows
  
       enum pass_positioning_ops
       {
--- 40234,40247 ----
  23.3 Interacting with the pass manager
  ======================================
  
! There needs to be a way to add/reorder/remove passes dynamically.  This
  is useful for both analysis plugins (plugging in after a certain pass
  such as CFG or an IPA pass) and optimization plugins.
  
   Basic support for inserting new passes or replacing existing passes is
! provided.  A plugin registers a new pass with GCC by calling
! 'register_callback' with the 'PLUGIN_PASS_MANAGER_SETUP' event and a
! pointer to a 'struct register_pass_info' object defined as follows
  
       enum pass_positioning_ops
       {
*************** File: gccint.info,  Node: Plugins GC,  N
*** 40736,40767 ****
  ===============================================
  
  Some plugins may want to be informed when GGC (the GCC Garbage
! Collector) is running. They can register callbacks for the
! `PLUGIN_GGC_START' and `PLUGIN_GGC_END' events (for which the callback
! is called with a null `gcc_data') to be notified of the start or end of
  the GCC garbage collection.
  
!  Some plugins may need to have GGC mark additional data. This can be
! done by registering a callback (called with a null `gcc_data') for the
! `PLUGIN_GGC_MARKING' event. Such callbacks can call the `ggc_set_mark'
! routine, preferably through the `ggc_mark' macro (and conversely, these
  routines should usually not be used in plugins outside of the
! `PLUGIN_GGC_MARKING' event).  Plugins that wish to hold weak references
  to gc data may also use this event to drop weak references when the
! object is about to be collected.  The `ggc_marked_p' function can be
! used to tell if an object is marked, or is about to  be collected.  The
! `gt_clear_cache' overloads which some types define may also be of use in
  managing weak references.
  
!  Some plugins may need to add extra GGC root tables, e.g. to handle
! their own `GTY'-ed data. This can be done with the
! `PLUGIN_REGISTER_GGC_ROOTS' pseudo-event with a null callback and the
! extra root table (of type `struct ggc_root_tab*') as `user_data'.
! Running the  `gengtype -p SOURCE-DIR FILE-LIST PLUGIN*.C ...' utility
  generates these extra root tables.
  
   You should understand the details of memory management inside GCC
! before using `PLUGIN_GGC_MARKING' or `PLUGIN_REGISTER_GGC_ROOTS'.
  
  
  File: gccint.info,  Node: Plugins description,  Next: Plugins attr,  Prev: Plugins GC,  Up: Plugins
--- 40288,40319 ----
  ===============================================
  
  Some plugins may want to be informed when GGC (the GCC Garbage
! Collector) is running.  They can register callbacks for the
! 'PLUGIN_GGC_START' and 'PLUGIN_GGC_END' events (for which the callback
! is called with a null 'gcc_data') to be notified of the start or end of
  the GCC garbage collection.
  
!  Some plugins may need to have GGC mark additional data.  This can be
! done by registering a callback (called with a null 'gcc_data') for the
! 'PLUGIN_GGC_MARKING' event.  Such callbacks can call the 'ggc_set_mark'
! routine, preferably through the 'ggc_mark' macro (and conversely, these
  routines should usually not be used in plugins outside of the
! 'PLUGIN_GGC_MARKING' event).  Plugins that wish to hold weak references
  to gc data may also use this event to drop weak references when the
! object is about to be collected.  The 'ggc_marked_p' function can be
! used to tell if an object is marked, or is about to be collected.  The
! 'gt_clear_cache' overloads which some types define may also be of use in
  managing weak references.
  
!  Some plugins may need to add extra GGC root tables, e.g.  to handle
! their own 'GTY'-ed data.  This can be done with the
! 'PLUGIN_REGISTER_GGC_ROOTS' pseudo-event with a null callback and the
! extra root table (of type 'struct ggc_root_tab*') as 'user_data'.
! Running the 'gengtype -p SOURCE-DIR FILE-LIST PLUGIN*.C ...' utility
  generates these extra root tables.
  
   You should understand the details of memory management inside GCC
! before using 'PLUGIN_GGC_MARKING' or 'PLUGIN_REGISTER_GGC_ROOTS'.
  
  
  File: gccint.info,  Node: Plugins description,  Next: Plugins attr,  Prev: Plugins GC,  Up: Plugins
*************** File: gccint.info,  Node: Plugins descri
*** 40769,40775 ****
  23.5 Giving information about a plugin
  ======================================
  
! A plugin should give some information to the user about itself. This
  uses the following structure:
  
       struct plugin_info
--- 40321,40327 ----
  23.5 Giving information about a plugin
  ======================================
  
! A plugin should give some information to the user about itself.  This
  uses the following structure:
  
       struct plugin_info
*************** uses the following structure:
*** 40778,40785 ****
         const char *help;
       };
  
!  Such a structure is passed as the `user_data' by the plugin's init
! routine using `register_callback' with the `PLUGIN_INFO' pseudo-event
  and a null callback.
  
  
--- 40330,40337 ----
         const char *help;
       };
  
!  Such a structure is passed as the 'user_data' by the plugin's init
! routine using 'register_callback' with the 'PLUGIN_INFO' pseudo-event
  and a null callback.
  
  
*************** File: gccint.info,  Node: Plugins attr,
*** 40791,40798 ****
  For analysis (or other) purposes it is useful to be able to add custom
  attributes or pragmas.
  
!  The `PLUGIN_ATTRIBUTES' callback is called during attribute
! registration. Use the `register_attribute' function to register custom
  attributes.
  
       /* Attribute handler callback */
--- 40343,40350 ----
  For analysis (or other) purposes it is useful to be able to add custom
  attributes or pragmas.
  
!  The 'PLUGIN_ATTRIBUTES' callback is called during attribute
! registration.  Use the 'register_attribute' function to register custom
  attributes.
  
       /* Attribute handler callback */
*************** attributes.
*** 40817,40828 ****
         register_attribute (&user_attr);
       }
  
!  The PLUGIN_PRAGMAS callback is called once during pragmas
! registration. Use the `c_register_pragma',
! `c_register_pragma_with_data', `c_register_pragma_with_expansion',
! `c_register_pragma_with_expansion_and_data' functions to register
! custom pragmas and their handlers (which often want to call
! `pragma_lex') from `c-family/c-pragma.h'.
  
       /* Plugin callback called during pragmas registration. Registered with
            register_callback (plugin_name, PLUGIN_PRAGMAS,
--- 40369,40381 ----
         register_attribute (&user_attr);
       }
  
! 
!  The PLUGIN_PRAGMAS callback is called once during pragmas registration.
! Use the 'c_register_pragma', 'c_register_pragma_with_data',
! 'c_register_pragma_with_expansion',
! 'c_register_pragma_with_expansion_and_data' functions to register custom
! pragmas and their handlers (which often want to call 'pragma_lex') from
! 'c-family/c-pragma.h'.
  
       /* Plugin callback called during pragmas registration. Registered with
            register_callback (plugin_name, PLUGIN_PRAGMAS,
*************** custom pragmas and their handlers (which
*** 40835,40846 ****
         c_register_pragma ("GCCPLUGIN", "sayhello", handle_pragma_sayhello);
       }
  
!  It is suggested to pass `"GCCPLUGIN"' (or a short name identifying
! your plugin) as the "space" argument of your pragma.
  
!  Pragmas registered with `c_register_pragma_with_expansion' or
! `c_register_pragma_with_expansion_and_data' support preprocessor
! expansions. For example:
  
       #define NUMBER 10
       #pragma GCCPLUGIN foothreshold (NUMBER)
--- 40388,40399 ----
         c_register_pragma ("GCCPLUGIN", "sayhello", handle_pragma_sayhello);
       }
  
!  It is suggested to pass '"GCCPLUGIN"' (or a short name identifying your
! plugin) as the "space" argument of your pragma.
  
!  Pragmas registered with 'c_register_pragma_with_expansion' or
! 'c_register_pragma_with_expansion_and_data' support preprocessor
! expansions.  For example:
  
       #define NUMBER 10
       #pragma GCCPLUGIN foothreshold (NUMBER)
*************** File: gccint.info,  Node: Plugins record
*** 40852,40865 ****
  ===============================================
  
  The event PLUGIN_PASS_EXECUTION passes the pointer to the executed pass
! (the same as current_pass) as `gcc_data' to the callback.  You can also
  inspect cfun to find out about which function this pass is executed for.
  Note that this event will only be invoked if the gate check (if
  applicable, modified by PLUGIN_OVERRIDE_GATE) succeeds.  You can use
! other hooks, like `PLUGIN_ALL_PASSES_START', `PLUGIN_ALL_PASSES_END',
! `PLUGIN_ALL_IPA_PASSES_START', `PLUGIN_ALL_IPA_PASSES_END',
! `PLUGIN_EARLY_GIMPLE_PASSES_START', and/or
! `PLUGIN_EARLY_GIMPLE_PASSES_END' to manipulate global state in your
  plugin(s) in order to get context for the pass execution.
  
  
--- 40405,40418 ----
  ===============================================
  
  The event PLUGIN_PASS_EXECUTION passes the pointer to the executed pass
! (the same as current_pass) as 'gcc_data' to the callback.  You can also
  inspect cfun to find out about which function this pass is executed for.
  Note that this event will only be invoked if the gate check (if
  applicable, modified by PLUGIN_OVERRIDE_GATE) succeeds.  You can use
! other hooks, like 'PLUGIN_ALL_PASSES_START', 'PLUGIN_ALL_PASSES_END',
! 'PLUGIN_ALL_IPA_PASSES_START', 'PLUGIN_ALL_IPA_PASSES_END',
! 'PLUGIN_EARLY_GIMPLE_PASSES_START', and/or
! 'PLUGIN_EARLY_GIMPLE_PASSES_END' to manipulate global state in your
  plugin(s) in order to get context for the pass execution.
  
  
*************** File: gccint.info,  Node: Plugins gate,
*** 40870,40877 ****
  
  After the original gate function for a pass is called, its result - the
  gate status - is stored as an integer.  Then the event
! `PLUGIN_OVERRIDE_GATE' is invoked, with a pointer to the gate status in
! the `gcc_data' parameter to the callback function.  A nonzero value of
  the gate status means that the pass is to be executed.  You can both
  read and write the gate status via the passed pointer.
  
--- 40423,40430 ----
  
  After the original gate function for a pass is called, its result - the
  gate status - is stored as an integer.  Then the event
! 'PLUGIN_OVERRIDE_GATE' is invoked, with a pointer to the gate status in
! the 'gcc_data' parameter to the callback function.  A nonzero value of
  the gate status means that the pass is to be executed.  You can both
  read and write the gate status via the passed pointer.
  
*************** File: gccint.info,  Node: Plugins tracki
*** 40884,40892 ****
  When your plugin is loaded, you can inspect the various pass lists to
  determine what passes are available.  However, other plugins might add
  new passes.  Also, future changes to GCC might cause generic passes to
! be added after plugin loading.  When a pass is first added to one of
! the pass lists, the event `PLUGIN_NEW_PASS' is invoked, with the
! callback parameter `gcc_data' pointing to the new pass.
  
  
  File: gccint.info,  Node: Plugins building,  Prev: Plugins tracking,  Up: Plugins
--- 40437,40445 ----
  When your plugin is loaded, you can inspect the various pass lists to
  determine what passes are available.  However, other plugins might add
  new passes.  Also, future changes to GCC might cause generic passes to
! be added after plugin loading.  When a pass is first added to one of the
! pass lists, the event 'PLUGIN_NEW_PASS' is invoked, with the callback
! parameter 'gcc_data' pointing to the new pass.
  
  
  File: gccint.info,  Node: Plugins building,  Prev: Plugins tracking,  Up: Plugins
*************** File: gccint.info,  Node: Plugins buildi
*** 40895,40916 ****
  ==========================
  
  If plugins are enabled, GCC installs the headers needed to build a
! plugin (somewhere in the installation tree, e.g. under `/usr/local').
! In particular a `plugin/include' directory is installed, containing all
  the header files needed to build plugins.
  
!  On most systems, you can query this `plugin' directory by invoking
! `gcc -print-file-name=plugin' (replace if needed `gcc' with the
! appropriate program path).
  
!  Inside plugins, this `plugin' directory name can be queried by calling
! `default_plugin_dir_name ()'.
  
   Plugins may know, when they are compiled, the GCC version for which
! `plugin-version.h' is provided.  The constant macros
! `GCCPLUGIN_VERSION_MAJOR', `GCCPLUGIN_VERSION_MINOR',
! `GCCPLUGIN_VERSION_PATCHLEVEL', `GCCPLUGIN_VERSION' are integer
! numbers, so a plugin could ensure it is built for GCC 4.7 with
       #if GCCPLUGIN_VERSION != 4007
       #error this GCC plugin is for GCC 4.7
       #endif
--- 40448,40469 ----
  ==========================
  
  If plugins are enabled, GCC installs the headers needed to build a
! plugin (somewhere in the installation tree, e.g.  under '/usr/local').
! In particular a 'plugin/include' directory is installed, containing all
  the header files needed to build plugins.
  
!  On most systems, you can query this 'plugin' directory by invoking 'gcc
! -print-file-name=plugin' (replace if needed 'gcc' with the appropriate
! program path).
  
!  Inside plugins, this 'plugin' directory name can be queried by calling
! 'default_plugin_dir_name ()'.
  
   Plugins may know, when they are compiled, the GCC version for which
! 'plugin-version.h' is provided.  The constant macros
! 'GCCPLUGIN_VERSION_MAJOR', 'GCCPLUGIN_VERSION_MINOR',
! 'GCCPLUGIN_VERSION_PATCHLEVEL', 'GCCPLUGIN_VERSION' are integer numbers,
! so a plugin could ensure it is built for GCC 4.7 with
       #if GCCPLUGIN_VERSION != 4007
       #error this GCC plugin is for GCC 4.7
       #endif
*************** numbers, so a plugin could ensure it is
*** 40926,40939 ****
       plugin.so: $(PLUGIN_SOURCE_FILES)
          $(HOST_GCC) -shared $(CXXFLAGS) $^ -o $@
  
!  A single source file plugin may be built with `g++ -I`gcc
  -print-file-name=plugin`/include -fPIC -shared -fno-rtti -O2 plugin.c -o
! plugin.so', using backquote shell syntax to query the `plugin'
  directory.
  
!  When a plugin needs to use `gengtype', be sure that both `gengtype'
! and `gtype.state' have the same version as the GCC for which the plugin
! is built.
  
  
  File: gccint.info,  Node: LTO,  Next: Match and Simplify,  Prev: Plugins,  Up: Top
--- 40479,40492 ----
       plugin.so: $(PLUGIN_SOURCE_FILES)
          $(HOST_GCC) -shared $(CXXFLAGS) $^ -o $@
  
!  A single source file plugin may be built with 'g++ -I`gcc
  -print-file-name=plugin`/include -fPIC -shared -fno-rtti -O2 plugin.c -o
! plugin.so', using backquote shell syntax to query the 'plugin'
  directory.
  
!  When a plugin needs to use 'gengtype', be sure that both 'gengtype' and
! 'gtype.state' have the same version as the GCC for which the plugin is
! built.
  
  
  File: gccint.info,  Node: LTO,  Next: Match and Simplify,  Prev: Plugins,  Up: Top
*************** File: gccint.info,  Node: LTO,  Next: Ma
*** 40943,40952 ****
  
  Link Time Optimization (LTO) gives GCC the capability of dumping its
  internal representation (GIMPLE) to disk, so that all the different
! compilation units that make up a single executable can be optimized as
! a single module.  This expands the scope of inter-procedural
! optimizations to encompass the whole program (or, rather, everything
! that is visible at link time).
  
  * Menu:
  
--- 40496,40505 ----
  
  Link Time Optimization (LTO) gives GCC the capability of dumping its
  internal representation (GIMPLE) to disk, so that all the different
! compilation units that make up a single executable can be optimized as a
! single module.  This expands the scope of inter-procedural optimizations
! to encompass the whole program (or, rather, everything that is visible
! at link time).
  
  * Menu:
  
*************** that is visible at link time).
*** 40955,40961 ****
  * IPA::                     Using summary information in IPA passes.
  * WHOPR::                   Whole program assumptions,
                              linker plugin and symbol visibilities.
! * Internal flags::          Internal flags controlling `lto1'.
  
  
  File: gccint.info,  Node: LTO Overview,  Next: LTO object file layout,  Up: LTO
--- 40508,40514 ----
  * IPA::                     Using summary information in IPA passes.
  * WHOPR::                   Whole program assumptions,
                              linker plugin and symbol visibilities.
! * Internal flags::          Internal flags controlling 'lto1'.
  
  
  File: gccint.info,  Node: LTO Overview,  Next: LTO object file layout,  Up: LTO
*************** File: gccint.info,  Node: LTO Overview,
*** 40964,40970 ****
  ====================
  
  Link time optimization is implemented as a GCC front end for a bytecode
! representation of GIMPLE that is emitted in special sections of `.o'
  files.  Currently, LTO support is enabled in most ELF-based systems, as
  well as darwin, cygwin and mingw systems.
  
--- 40517,40523 ----
  ====================
  
  Link time optimization is implemented as a GCC front end for a bytecode
! representation of GIMPLE that is emitted in special sections of '.o'
  files.  Currently, LTO support is enabled in most ELF-based systems, as
  well as darwin, cygwin and mingw systems.
  
*************** Additionally, one might be able to ship
*** 40976,40991 ****
  could be used both for development and the production of optimized
  builds.  A, perhaps surprising, side effect of this feature is that any
  mistake in the toolchain leads to LTO information not being used (e.g.
! an older `libtool' calling `ld' directly).  This is both an advantage,
  as the system is more robust, and a disadvantage, as the user is not
  informed that the optimization has been disabled.
  
   The current implementation only produces "fat" objects, effectively
  doubling compilation time and increasing file sizes up to 5x the
! original size.  This hides the problem that some tools, such as `ar'
! and `nm', need to understand symbol tables of LTO sections.  These
! tools were extended to use the plugin infrastructure, and with these
! problems solved, GCC will also support "slim" objects consisting of the
  intermediate code alone.
  
   At the highest level, LTO splits the compiler in two.  The first half
--- 40529,40544 ----
  could be used both for development and the production of optimized
  builds.  A, perhaps surprising, side effect of this feature is that any
  mistake in the toolchain leads to LTO information not being used (e.g.
! an older 'libtool' calling 'ld' directly).  This is both an advantage,
  as the system is more robust, and a disadvantage, as the user is not
  informed that the optimization has been disabled.
  
   The current implementation only produces "fat" objects, effectively
  doubling compilation time and increasing file sizes up to 5x the
! original size.  This hides the problem that some tools, such as 'ar' and
! 'nm', need to understand symbol tables of LTO sections.  These tools
! were extended to use the plugin infrastructure, and with these problems
! solved, GCC will also support "slim" objects consisting of the
  intermediate code alone.
  
   At the highest level, LTO splits the compiler in two.  The first half
*************** data structures needed to optimize and g
*** 40994,41041 ****
  declarations, types, the callgraph and the GIMPLE representation of
  function bodies.
  
!  When `-flto' is given during compilation of a source file, the pass
! manager executes all the passes in `all_lto_gen_passes'.  Currently,
  this phase is composed of two IPA passes:
  
!    * `pass_ipa_lto_gimple_out' This pass executes the function
!      `lto_output' in `lto-streamer-out.c', which traverses the call
       graph encoding every reachable declaration, type and function.
       This generates a memory representation of all the file sections
       described below.
  
!    * `pass_ipa_lto_finish_out' This pass executes the function
!      `produce_asm_for_decls' in `lto-streamer-out.c', which takes the
       memory image built in the previous pass and encodes it in the
       corresponding ELF file sections.
  
!  The second half of LTO support is the "reader".  This is implemented
! as the GCC front end `lto1' in `lto/lto.c'.  When `collect2' detects a
! link set of `.o'/`.a' files with LTO information and the `-flto' is
! enabled, it invokes `lto1' which reads the set of files and aggregates
! them into a single translation unit for optimization.  The main entry
! point for the reader is `lto/lto.c':`lto_main'.
  
  24.1.1 LTO modes of operation
  -----------------------------
  
  One of the main goals of the GCC link-time infrastructure was to allow
! effective compilation of large programs.  For this reason GCC
! implements two link-time compilation modes.
  
!   1. _LTO mode_, in which the whole program is read into the compiler
!      at link-time and optimized in a similar way as if it were a single
       source-level compilation unit.
  
    2. _WHOPR or partitioned mode_, designed to utilize multiple CPUs
       and/or a distributed compilation environment to quickly link large
       applications.  WHOPR stands for WHOle Program optimizeR (not to be
!      confused with the semantics of `-fwhole-program').  It partitions
!      the aggregated callgraph from many different `.o' files and
       distributes the compilation of the sub-graphs to different CPUs.
  
       Note that distributed compilation is not implemented yet, but since
!      the parallelism is facilitated via generating a `Makefile', it
       would be easy to implement.
  
   WHOPR splits LTO into three main stages:
--- 40547,40594 ----
  declarations, types, the callgraph and the GIMPLE representation of
  function bodies.
  
!  When '-flto' is given during compilation of a source file, the pass
! manager executes all the passes in 'all_lto_gen_passes'.  Currently,
  this phase is composed of two IPA passes:
  
!    * 'pass_ipa_lto_gimple_out' This pass executes the function
!      'lto_output' in 'lto-streamer-out.c', which traverses the call
       graph encoding every reachable declaration, type and function.
       This generates a memory representation of all the file sections
       described below.
  
!    * 'pass_ipa_lto_finish_out' This pass executes the function
!      'produce_asm_for_decls' in 'lto-streamer-out.c', which takes the
       memory image built in the previous pass and encodes it in the
       corresponding ELF file sections.
  
!  The second half of LTO support is the "reader".  This is implemented as
! the GCC front end 'lto1' in 'lto/lto.c'.  When 'collect2' detects a link
! set of '.o'/'.a' files with LTO information and the '-flto' is enabled,
! it invokes 'lto1' which reads the set of files and aggregates them into
! a single translation unit for optimization.  The main entry point for
! the reader is 'lto/lto.c':'lto_main'.
  
  24.1.1 LTO modes of operation
  -----------------------------
  
  One of the main goals of the GCC link-time infrastructure was to allow
! effective compilation of large programs.  For this reason GCC implements
! two link-time compilation modes.
  
!   1. _LTO mode_, in which the whole program is read into the compiler at
!      link-time and optimized in a similar way as if it were a single
       source-level compilation unit.
  
    2. _WHOPR or partitioned mode_, designed to utilize multiple CPUs
       and/or a distributed compilation environment to quickly link large
       applications.  WHOPR stands for WHOle Program optimizeR (not to be
!      confused with the semantics of '-fwhole-program').  It partitions
!      the aggregated callgraph from many different '.o' files and
       distributes the compilation of the sub-graphs to different CPUs.
  
       Note that distributed compilation is not implemented yet, but since
!      the parallelism is facilitated via generating a 'Makefile', it
       would be easy to implement.
  
   WHOPR splits LTO into three main stages:
*************** implements two link-time compilation mod
*** 41049,41057 ****
       global call-graph is generated, and a global analysis procedure
       makes transformation decisions.  The global call-graph is
       partitioned to facilitate parallel optimization during phase 3.
!      The results of the WPA stage are stored into new object files
!      which contain the partitions of program expressed in the
!      intermediate language and the optimization decisions.
  
    3. Local transformations (LTRANS) This stage executes in parallel.
       All the decisions made during phase 2 are implemented locally in
--- 40602,40610 ----
       global call-graph is generated, and a global analysis procedure
       makes transformation decisions.  The global call-graph is
       partitioned to facilitate parallel optimization during phase 3.
!      The results of the WPA stage are stored into new object files which
!      contain the partitions of program expressed in the intermediate
!      language and the optimization decisions.
  
    3. Local transformations (LTRANS) This stage executes in parallel.
       All the decisions made during phase 2 are implemented locally in
*************** implements two link-time compilation mod
*** 41060,41077 ****
       during the phase 2 may be performed on the local call-graph
       partitions.
  
!  WHOPR can be seen as an extension of the usual LTO mode of
! compilation.  In LTO, WPA and LTRANS are executed within a single
! execution of the compiler, after the whole program has been read into
! memory.
  
   When compiling in WHOPR mode, the callgraph is partitioned during the
! WPA stage.  The whole program is split into a given number of
! partitions of roughly the same size.  The compiler tries to minimize
! the number of references which cross partition boundaries.  The main
! advantage of WHOPR is to allow the parallel execution of LTRANS stages,
! which are the most time-consuming part of the compilation process.
! Additionally, it avoids the need to load the whole program into memory.
  
  
  File: gccint.info,  Node: LTO object file layout,  Next: IPA,  Prev: LTO Overview,  Up: LTO
--- 40613,40629 ----
       during the phase 2 may be performed on the local call-graph
       partitions.
  
!  WHOPR can be seen as an extension of the usual LTO mode of compilation.
! In LTO, WPA and LTRANS are executed within a single execution of the
! compiler, after the whole program has been read into memory.
  
   When compiling in WHOPR mode, the callgraph is partitioned during the
! WPA stage.  The whole program is split into a given number of partitions
! of roughly the same size.  The compiler tries to minimize the number of
! references which cross partition boundaries.  The main advantage of
! WHOPR is to allow the parallel execution of LTRANS stages, which are the
! most time-consuming part of the compilation process.  Additionally, it
! avoids the need to load the whole program into memory.
  
  
  File: gccint.info,  Node: LTO object file layout,  Next: IPA,  Prev: LTO Overview,  Up: LTO
*************** File: gccint.info,  Node: LTO object fil
*** 41081,41093 ****
  
  LTO information is stored in several ELF sections inside object files.
  Data structures and enum codes for sections are defined in
! `lto-streamer.h'.
  
!  These sections are emitted from `lto-streamer-out.c' and mapped in all
! at once from `lto/lto.c':`lto_file_read'.  The individual functions
  dealing with the reading/writing of each section are described below.
  
!    * Command line options (`.gnu.lto_.opts')
  
       This section contains the command line options used to generate the
       object files.  This is used at link time to determine the
--- 40633,40645 ----
  
  LTO information is stored in several ELF sections inside object files.
  Data structures and enum codes for sections are defined in
! 'lto-streamer.h'.
  
!  These sections are emitted from 'lto-streamer-out.c' and mapped in all
! at once from 'lto/lto.c':'lto_file_read'.  The individual functions
  dealing with the reading/writing of each section are described below.
  
!    * Command line options ('.gnu.lto_.opts')
  
       This section contains the command line options used to generate the
       object files.  This is used at link time to determine the
*************** dealing with the reading/writing of each
*** 41100,41111 ****
       the options saved on all the files in a link-time set are applied
       globally.  No attempt is made at validating the combination of
       flags (other than the usual validation done by option processing).
!      This is implemented in `lto/lto.c':`lto_read_all_file_options'.
  
!    * Symbol table (`.gnu.lto_.symtab')
  
       This table replaces the ELF symbol table for functions and
!      variables represented in the LTO IL.  Symbols used and exported by
       the optimized assembly code of "fat" objects might not match the
       ones used and exported by the intermediate code.  This table is
       necessary because the intermediate code is less optimized and thus
--- 40652,40663 ----
       the options saved on all the files in a link-time set are applied
       globally.  No attempt is made at validating the combination of
       flags (other than the usual validation done by option processing).
!      This is implemented in 'lto/lto.c':'lto_read_all_file_options'.
  
!    * Symbol table ('.gnu.lto_.symtab')
  
       This table replaces the ELF symbol table for functions and
!      variables represented in the LTO IL. Symbols used and exported by
       the optimized assembly code of "fat" objects might not match the
       ones used and exported by the intermediate code.  This table is
       necessary because the intermediate code is less optimized and thus
*************** dealing with the reading/writing of each
*** 41119,41182 ****
       symbol table was used.
  
       The symbol table is emitted in
!      `lto-streamer-out.c':`produce_symtab'.
  
!    * Global declarations and types (`.gnu.lto_.decls')
  
       This section contains an intermediate language dump of all
       declarations and types required to represent the callgraph, static
       variables and top-level debug info.
  
       The contents of this section are emitted in
!      `lto-streamer-out.c':`produce_asm_for_decls'.  Types and symbols
       are emitted in a topological order that preserves the sharing of
       pointers when the file is read back in
!      (`lto.c':`read_cgraph_and_symbols').
  
!    * The callgraph (`.gnu.lto_.cgraph')
  
       This section contains the basic data structure used by the GCC
       inter-procedural optimization infrastructure.  This section stores
       an annotated multi-graph which represents the functions and call
!      sites as well as the variables, aliases and top-level `asm'
       statements.
  
!      This section is emitted in `lto-streamer-out.c':`output_cgraph'
!      and read in `lto-cgraph.c':`input_cgraph'.
  
!    * IPA references (`.gnu.lto_.refs')
  
       This section contains references between function and static
!      variables.  It is emitted by `lto-cgraph.c':`output_refs' and read
!      by `lto-cgraph.c':`input_refs'.
  
!    * Function bodies (`.gnu.lto_.function_body.<name>')
  
       This section contains function bodies in the intermediate language
       representation.  Every function body is in a separate section to
       allow copying of the section independently to different object
       files or reading the function on demand.
  
!      Functions are emitted in `lto-streamer-out.c':`output_function'
!      and read in `lto-streamer-in.c':`input_function'.
  
!    * Static variable initializers (`.gnu.lto_.vars')
  
       This section contains all the symbols in the global variable pool.
!      It is emitted by `lto-cgraph.c':`output_varpool' and read in
!      `lto-cgraph.c':`input_cgraph'.
  
     * Summaries and optimization summaries used by IPA passes
!      (`.gnu.lto_.<xxx>', where `<xxx>' is one of `jmpfuncs',
!      `pureconst' or `reference')
  
       These sections are used by IPA passes that need to emit summary
!      information during LTO generation to be read and aggregated at
!      link time.  Each pass is responsible for implementing two pass
!      manager hooks: one for writing the summary and another for reading
!      it in.  The format of these sections is entirely up to each
!      individual pass.  The only requirement is that the writer and
!      reader hooks agree on the format.
  
  
  File: gccint.info,  Node: IPA,  Next: WHOPR,  Prev: LTO object file layout,  Up: LTO
--- 40671,40734 ----
       symbol table was used.
  
       The symbol table is emitted in
!      'lto-streamer-out.c':'produce_symtab'.
  
!    * Global declarations and types ('.gnu.lto_.decls')
  
       This section contains an intermediate language dump of all
       declarations and types required to represent the callgraph, static
       variables and top-level debug info.
  
       The contents of this section are emitted in
!      'lto-streamer-out.c':'produce_asm_for_decls'.  Types and symbols
       are emitted in a topological order that preserves the sharing of
       pointers when the file is read back in
!      ('lto.c':'read_cgraph_and_symbols').
  
!    * The callgraph ('.gnu.lto_.cgraph')
  
       This section contains the basic data structure used by the GCC
       inter-procedural optimization infrastructure.  This section stores
       an annotated multi-graph which represents the functions and call
!      sites as well as the variables, aliases and top-level 'asm'
       statements.
  
!      This section is emitted in 'lto-streamer-out.c':'output_cgraph' and
!      read in 'lto-cgraph.c':'input_cgraph'.
  
!    * IPA references ('.gnu.lto_.refs')
  
       This section contains references between function and static
!      variables.  It is emitted by 'lto-cgraph.c':'output_refs' and read
!      by 'lto-cgraph.c':'input_refs'.
  
!    * Function bodies ('.gnu.lto_.function_body.<name>')
  
       This section contains function bodies in the intermediate language
       representation.  Every function body is in a separate section to
       allow copying of the section independently to different object
       files or reading the function on demand.
  
!      Functions are emitted in 'lto-streamer-out.c':'output_function' and
!      read in 'lto-streamer-in.c':'input_function'.
  
!    * Static variable initializers ('.gnu.lto_.vars')
  
       This section contains all the symbols in the global variable pool.
!      It is emitted by 'lto-cgraph.c':'output_varpool' and read in
!      'lto-cgraph.c':'input_cgraph'.
  
     * Summaries and optimization summaries used by IPA passes
!      ('.gnu.lto_.<xxx>', where '<xxx>' is one of 'jmpfuncs', 'pureconst'
!      or 'reference')
  
       These sections are used by IPA passes that need to emit summary
!      information during LTO generation to be read and aggregated at link
!      time.  Each pass is responsible for implementing two pass manager
!      hooks: one for writing the summary and another for reading it in.
!      The format of these sections is entirely up to each individual
!      pass.  The only requirement is that the writer and reader hooks
!      agree on the format.
  
  
  File: gccint.info,  Node: IPA,  Next: WHOPR,  Prev: LTO object file layout,  Up: LTO
*************** optimization pass is split into several
*** 41195,41240 ****
  different times during WHOPR compilation:
  
     * LGEN time
!        1. _Generate summary_ (`generate_summary' in `struct
!           ipa_opt_pass_d').  This stage analyzes every function body
!           and variable initializer is examined and stores relevant
            information into a pass-specific data structure.
  
!        2. _Write summary_ (`write_summary' in `struct ipa_opt_pass_d').
            This stage writes all the pass-specific information generated
!           by `generate_summary'.  Summaries go into their own
!           `LTO_section_*' sections that have to be declared in
!           `lto-streamer.h':`enum lto_section_type'.  A new section is
!           created by calling `create_output_block' and data can be
!           written using the `lto_output_*' routines.
  
     * WPA time
!        1. _Read summary_ (`read_summary' in `struct ipa_opt_pass_d').
            This stage reads all the pass-specific information in exactly
!           the same order that it was written by `write_summary'.
  
!        2. _Execute_ (`execute' in `struct opt_pass').  This performs
            inter-procedural propagation.  This must be done without
            actual access to the individual function bodies or variable
!           initializers.  Typically, this results in a transitive
!           closure operation over the summary information of all the
!           nodes in the callgraph.
  
!        3. _Write optimization summary_ (`write_optimization_summary' in
!           `struct ipa_opt_pass_d').  This writes the result of the
            inter-procedural propagation into the object file.  This can
            use the same data structures and helper routines used in
!           `write_summary'.
  
     * LTRANS time
!        1. _Read optimization summary_ (`read_optimization_summary' in
!           `struct ipa_opt_pass_d').  The counterpart to
!           `write_optimization_summary'.  This reads the interprocedural
            optimization decisions in exactly the same format emitted by
!           `write_optimization_summary'.
  
!        2. _Transform_ (`function_transform' and `variable_transform' in
!           `struct ipa_opt_pass_d').  The actual function bodies and
            variable initializers are updated based on the information
            passed down from the _Execute_ stage.
  
--- 40747,40792 ----
  different times during WHOPR compilation:
  
     * LGEN time
!        1. _Generate summary_ ('generate_summary' in 'struct
!           ipa_opt_pass_d').  This stage analyzes every function body and
!           variable initializer is examined and stores relevant
            information into a pass-specific data structure.
  
!        2. _Write summary_ ('write_summary' in 'struct ipa_opt_pass_d').
            This stage writes all the pass-specific information generated
!           by 'generate_summary'.  Summaries go into their own
!           'LTO_section_*' sections that have to be declared in
!           'lto-streamer.h':'enum lto_section_type'.  A new section is
!           created by calling 'create_output_block' and data can be
!           written using the 'lto_output_*' routines.
  
     * WPA time
!        1. _Read summary_ ('read_summary' in 'struct ipa_opt_pass_d').
            This stage reads all the pass-specific information in exactly
!           the same order that it was written by 'write_summary'.
  
!        2. _Execute_ ('execute' in 'struct opt_pass').  This performs
            inter-procedural propagation.  This must be done without
            actual access to the individual function bodies or variable
!           initializers.  Typically, this results in a transitive closure
!           operation over the summary information of all the nodes in the
!           callgraph.
  
!        3. _Write optimization summary_ ('write_optimization_summary' in
!           'struct ipa_opt_pass_d').  This writes the result of the
            inter-procedural propagation into the object file.  This can
            use the same data structures and helper routines used in
!           'write_summary'.
  
     * LTRANS time
!        1. _Read optimization summary_ ('read_optimization_summary' in
!           'struct ipa_opt_pass_d').  The counterpart to
!           'write_optimization_summary'.  This reads the interprocedural
            optimization decisions in exactly the same format emitted by
!           'write_optimization_summary'.
  
!        2. _Transform_ ('function_transform' and 'variable_transform' in
!           'struct ipa_opt_pass_d').  The actual function bodies and
            variable initializers are updated based on the information
            passed down from the _Execute_ stage.
  
*************** LTO, WHOPR and classic non-LTO compilati
*** 41254,41260 ****
  
   To simplify development, the GCC pass manager differentiates between
  normal inter-procedural passes and small inter-procedural passes.  A
! _small inter-procedural pass_ (`SIMPLE_IPA_PASS') is a pass that does
  everything at once and thus it can not be executed during WPA in WHOPR
  mode.  It defines only the _Execute_ stage and during this stage it
  accesses and modifies the function bodies.  Such passes are useful for
--- 40806,40812 ----
  
   To simplify development, the GCC pass manager differentiates between
  normal inter-procedural passes and small inter-procedural passes.  A
! _small inter-procedural pass_ ('SIMPLE_IPA_PASS') is a pass that does
  everything at once and thus it can not be executed during WPA in WHOPR
  mode.  It defines only the _Execute_ stage and during this stage it
  accesses and modifies the function bodies.  Such passes are useful for
*************** development of a new inter-procedural pa
*** 41266,41278 ****
  24.3.1 Virtual clones
  ---------------------
  
! One of the main challenges of introducing the WHOPR compilation mode
! was addressing the interactions between optimization passes.  In LTO
  compilation mode, the passes are executed in a sequence, each of which
! consists of analysis (or _Generate summary_), propagation (or
! _Execute_) and _Transform_ stages.  Once the work of one pass is
! finished, the next pass sees the updated program representation and can
! execute.  This makes the individual passes dependent on each other.
  
   In WHOPR mode all passes first execute their _Generate summary_ stage.
  Then summary writing marks the end of the LGEN stage.  At WPA time, the
--- 40818,40830 ----
  24.3.1 Virtual clones
  ---------------------
  
! One of the main challenges of introducing the WHOPR compilation mode was
! addressing the interactions between optimization passes.  In LTO
  compilation mode, the passes are executed in a sequence, each of which
! consists of analysis (or _Generate summary_), propagation (or _Execute_)
! and _Transform_ stages.  Once the work of one pass is finished, the next
! pass sees the updated program representation and can execute.  This
! makes the individual passes dependent on each other.
  
   In WHOPR mode all passes first execute their _Generate summary_ stage.
  Then summary writing marks the end of the LGEN stage.  At WPA time, the
*************** summaries are read back into memory and
*** 41280,41317 ****
  stage.  Optimization summaries are streamed and sent to LTRANS, where
  all the passes execute the _Transform_ stage.
  
!  Most optimization passes split naturally into analysis, propagation
! and transformation stages.  But some do not.  The main problem arises
! when one pass performs changes and the following pass gets confused by
! seeing different callgraphs between the _Transform_ stage and the
! _Generate summary_ or _Execute_ stage.  This means that the passes are
! required to communicate their decisions with each other.
  
   To facilitate this communication, the GCC callgraph infrastructure
  implements _virtual clones_, a method of representing the changes
! performed by the optimization passes in the callgraph without needing
! to update function bodies.
  
!  A _virtual clone_ in the callgraph is a function that has no
! associated body, just a description of how to create its body based on
! a different function (which itself may be a virtual clone).
  
   The description of function modifications includes adjustments to the
  function's signature (which allows, for example, removing or adding
! function arguments), substitutions to perform on the function body,
! and, for inlined functions, a pointer to the function that it will be
! inlined into.
  
   It is also possible to redirect any edge of the callgraph from a
  function to its virtual clone.  This implies updating of the call site
  to adjust for the new function signature.
  
!  Most of the transformations performed by inter-procedural
! optimizations can be represented via virtual clones.  For instance, a
! constant propagation pass can produce a virtual clone of the function
! which replaces one of its arguments by a constant.  The inliner can
! represent its decisions by producing a clone of a function whose body
! will be later integrated into a given function.
  
   Using _virtual clones_, the program can be easily updated during the
  _Execute_ stage, solving most of pass interactions problems that would
--- 40832,40869 ----
  stage.  Optimization summaries are streamed and sent to LTRANS, where
  all the passes execute the _Transform_ stage.
  
!  Most optimization passes split naturally into analysis, propagation and
! transformation stages.  But some do not.  The main problem arises when
! one pass performs changes and the following pass gets confused by seeing
! different callgraphs between the _Transform_ stage and the _Generate
! summary_ or _Execute_ stage.  This means that the passes are required to
! communicate their decisions with each other.
  
   To facilitate this communication, the GCC callgraph infrastructure
  implements _virtual clones_, a method of representing the changes
! performed by the optimization passes in the callgraph without needing to
! update function bodies.
  
!  A _virtual clone_ in the callgraph is a function that has no associated
! body, just a description of how to create its body based on a different
! function (which itself may be a virtual clone).
  
   The description of function modifications includes adjustments to the
  function's signature (which allows, for example, removing or adding
! function arguments), substitutions to perform on the function body, and,
! for inlined functions, a pointer to the function that it will be inlined
! into.
  
   It is also possible to redirect any edge of the callgraph from a
  function to its virtual clone.  This implies updating of the call site
  to adjust for the new function signature.
  
!  Most of the transformations performed by inter-procedural optimizations
! can be represented via virtual clones.  For instance, a constant
! propagation pass can produce a virtual clone of the function which
! replaces one of its arguments by a constant.  The inliner can represent
! its decisions by producing a clone of a function whose body will be
! later integrated into a given function.
  
   Using _virtual clones_, the program can be easily updated during the
  _Execute_ stage, solving most of pass interactions problems that would
*************** otherwise occur during _Transform_.
*** 41319,41332 ****
  
   Virtual clones are later materialized in the LTRANS stage and turned
  into real functions.  Passes executed after the virtual clone were
! introduced also perform their _Transform_ stage on new functions, so
! for a pass there is no significant difference between operating on a
! real function or a virtual clone introduced before its _Execute_ stage.
  
!  Optimization passes then work on virtual clones introduced before
! their _Execute_ stage as if they were real functions.  The only
! difference is that clones are not visible during the _Generate Summary_
! stage.
  
   To keep function summaries updated, the callgraph interface allows an
  optimizer to register a callback that is called every time a new clone
--- 40871,40883 ----
  
   Virtual clones are later materialized in the LTRANS stage and turned
  into real functions.  Passes executed after the virtual clone were
! introduced also perform their _Transform_ stage on new functions, so for
! a pass there is no significant difference between operating on a real
! function or a virtual clone introduced before its _Execute_ stage.
  
!  Optimization passes then work on virtual clones introduced before their
! _Execute_ stage as if they were real functions.  The only difference is
! that clones are not visible during the _Generate Summary_ stage.
  
   To keep function summaries updated, the callgraph interface allows an
  optimizer to register a callback that is called every time a new clone
*************** summaries updated for the _Transform_ st
*** 41341,41359 ****
  ---------------------
  
  GCC represents IPA references in the callgraph.  For a function or
! variable `A', the _IPA reference_ is a list of all locations where the
! address of `A' is taken and, when `A' is a variable, a list of all
! direct stores and reads to/from `A'.  References represent an oriented
  multi-graph on the union of nodes of the callgraph and the varpool.  See
! `ipa-reference.c':`ipa_reference_write_optimization_summary' and
! `ipa-reference.c':`ipa_reference_read_optimization_summary' for details.
  
  24.3.3 Jump functions
  ---------------------
  
! Suppose that an optimization pass sees a function `A' and it knows the
  values of (some of) its arguments.  The _jump function_ describes the
! value of a parameter of a given function call in function `A' based on
  this knowledge.
  
   Jump functions are used by several optimizations, such as the
--- 40892,40910 ----
  ---------------------
  
  GCC represents IPA references in the callgraph.  For a function or
! variable 'A', the _IPA reference_ is a list of all locations where the
! address of 'A' is taken and, when 'A' is a variable, a list of all
! direct stores and reads to/from 'A'.  References represent an oriented
  multi-graph on the union of nodes of the callgraph and the varpool.  See
! 'ipa-reference.c':'ipa_reference_write_optimization_summary' and
! 'ipa-reference.c':'ipa_reference_read_optimization_summary' for details.
  
  24.3.3 Jump functions
  ---------------------
  
! Suppose that an optimization pass sees a function 'A' and it knows the
  values of (some of) its arguments.  The _jump function_ describes the
! value of a parameter of a given function call in function 'A' based on
  this knowledge.
  
   Jump functions are used by several optimizations, such as the
*************** File: gccint.info,  Node: WHOPR,  Next:
*** 41368,41425 ****
  =====================================================================
  
  Link-time optimization gives relatively minor benefits when used alone.
! The problem is that propagation of inter-procedural information does
! not work well across functions and variables that are called or
! referenced by other compilation units (such as from a dynamically
! linked library).  We say that such functions and variables are
! _externally visible_.
  
   To make the situation even more difficult, many applications organize
  themselves as a set of shared libraries, and the default ELF visibility
  rules allow one to overwrite any externally visible symbol with a
  different symbol at runtime.  This basically disables any optimizations
! across such functions and variables, because the compiler cannot be
! sure that the function body it is seeing is the same function body that
! will be used at runtime.  Any function or variable not declared
! `static' in the sources degrades the quality of inter-procedural
! optimization.
  
   To avoid this problem the compiler must assume that it sees the whole
! program when doing link-time optimization.  Strictly speaking, the
! whole program is rarely visible even at link-time.  Standard system
! libraries are usually linked dynamically or not provided with the
! link-time information.  In GCC, the whole program option
! (`-fwhole-program') asserts that every function and variable defined in
! the current compilation unit is static, except for function `main'
! (note: at link time, the current unit is the union of all objects
! compiled with LTO).  Since some functions and variables need to be
! referenced externally, for example by another DSO or from an assembler
! file, GCC also provides the function and variable attribute
! `externally_visible' which can be used to disable the effect of
! `-fwhole-program' on a specific symbol.
  
   The whole program mode assumptions are slightly more complex in C++,
  where inline functions in headers are put into _COMDAT_ sections.
  COMDAT function and variables can be defined by multiple object files
! and their bodies are unified at link-time and dynamic link-time.
! COMDAT functions are changed to local only when their address is not
! taken and thus un-sharing them with a library is not harmful.  COMDAT
! variables always remain externally visible, however for readonly
! variables it is assumed that their initializers cannot be overwritten
! by a different value.
  
!  GCC provides the function and variable attribute `visibility' that can
  be used to specify the visibility of externally visible symbols (or
! alternatively an `-fdefault-visibility' command line option).  ELF
! defines the `default', `protected', `hidden' and `internal'
  visibilities.
  
!  The most commonly used is visibility is `hidden'.  It specifies that
  the symbol cannot be referenced from outside of the current shared
! library.  Unfortunately, this information cannot be used directly by
! the link-time optimization in the compiler since the whole shared
! library also might contain non-LTO objects and those are not visible to
! the compiler.
  
   GCC solves this problem using linker plugins.  A _linker plugin_ is an
  interface to the linker that allows an external program to claim the
--- 40919,40973 ----
  =====================================================================
  
  Link-time optimization gives relatively minor benefits when used alone.
! The problem is that propagation of inter-procedural information does not
! work well across functions and variables that are called or referenced
! by other compilation units (such as from a dynamically linked library).
! We say that such functions and variables are _externally visible_.
  
   To make the situation even more difficult, many applications organize
  themselves as a set of shared libraries, and the default ELF visibility
  rules allow one to overwrite any externally visible symbol with a
  different symbol at runtime.  This basically disables any optimizations
! across such functions and variables, because the compiler cannot be sure
! that the function body it is seeing is the same function body that will
! be used at runtime.  Any function or variable not declared 'static' in
! the sources degrades the quality of inter-procedural optimization.
  
   To avoid this problem the compiler must assume that it sees the whole
! program when doing link-time optimization.  Strictly speaking, the whole
! program is rarely visible even at link-time.  Standard system libraries
! are usually linked dynamically or not provided with the link-time
! information.  In GCC, the whole program option ('-fwhole-program')
! asserts that every function and variable defined in the current
! compilation unit is static, except for function 'main' (note: at link
! time, the current unit is the union of all objects compiled with LTO).
! Since some functions and variables need to be referenced externally, for
! example by another DSO or from an assembler file, GCC also provides the
! function and variable attribute 'externally_visible' which can be used
! to disable the effect of '-fwhole-program' on a specific symbol.
  
   The whole program mode assumptions are slightly more complex in C++,
  where inline functions in headers are put into _COMDAT_ sections.
  COMDAT function and variables can be defined by multiple object files
! and their bodies are unified at link-time and dynamic link-time.  COMDAT
! functions are changed to local only when their address is not taken and
! thus un-sharing them with a library is not harmful.  COMDAT variables
! always remain externally visible, however for readonly variables it is
! assumed that their initializers cannot be overwritten by a different
! value.
  
!  GCC provides the function and variable attribute 'visibility' that can
  be used to specify the visibility of externally visible symbols (or
! alternatively an '-fdefault-visibility' command line option).  ELF
! defines the 'default', 'protected', 'hidden' and 'internal'
  visibilities.
  
!  The most commonly used is visibility is 'hidden'.  It specifies that
  the symbol cannot be referenced from outside of the current shared
! library.  Unfortunately, this information cannot be used directly by the
! link-time optimization in the compiler since the whole shared library
! also might contain non-LTO objects and those are not visible to the
! compiler.
  
   GCC solves this problem using linker plugins.  A _linker plugin_ is an
  interface to the linker that allows an external program to claim the
*************** ownership of a given object file.  The l
*** 41427,41463 ****
  procedure by querying the plugin about the symbol table of the claimed
  objects and once the linking decisions are complete, the plugin is
  allowed to provide the final object file before the actual linking is
! made.  The linker plugin obtains the symbol resolution information
! which specifies which symbols provided by the claimed objects are bound
! from the rest of a binary being linked.
  
!  GCC is designed to be independent of the rest of the toolchain and
! aims to support linkers without plugin support.  For this reason it
! does not use the linker plugin by default.  Instead, the object files
! are examined by `collect2' before being passed to the linker and
! objects found to have LTO sections are passed to `lto1' first.  This
! mode does not work for library archives.  The decision on what object
! files from the archive are needed depends on the actual linking and
! thus GCC would have to implement the linker itself.  The resolution
! information is missing too and thus GCC needs to make an educated guess
! based on `-fwhole-program'.  Without the linker plugin GCC also assumes
! that symbols are declared `hidden' and not referred by non-LTO code by
  default.
  
  
  File: gccint.info,  Node: Internal flags,  Prev: WHOPR,  Up: LTO
  
! 24.5 Internal flags controlling `lto1'
  ======================================
  
! The following flags are passed into `lto1' and are not meant to be used
  directly from the command line.
  
     * -fwpa This option runs the serial part of the link-time optimizer
       performing the inter-procedural propagation (WPA mode).  The
       compiler reads in summary information from all inputs and performs
!      an analysis based on summary information only.  It generates
!      object files for subsequent runs of the link-time optimizer where
       individual object files are optimized using both summary
       information from the WPA mode and the actual function bodies.  It
       then drives the LTRANS phase.
--- 40975,41011 ----
  procedure by querying the plugin about the symbol table of the claimed
  objects and once the linking decisions are complete, the plugin is
  allowed to provide the final object file before the actual linking is
! made.  The linker plugin obtains the symbol resolution information which
! specifies which symbols provided by the claimed objects are bound from
! the rest of a binary being linked.
  
!  GCC is designed to be independent of the rest of the toolchain and aims
! to support linkers without plugin support.  For this reason it does not
! use the linker plugin by default.  Instead, the object files are
! examined by 'collect2' before being passed to the linker and objects
! found to have LTO sections are passed to 'lto1' first.  This mode does
! not work for library archives.  The decision on what object files from
! the archive are needed depends on the actual linking and thus GCC would
! have to implement the linker itself.  The resolution information is
! missing too and thus GCC needs to make an educated guess based on
! '-fwhole-program'.  Without the linker plugin GCC also assumes that
! symbols are declared 'hidden' and not referred by non-LTO code by
  default.
  
  
  File: gccint.info,  Node: Internal flags,  Prev: WHOPR,  Up: LTO
  
! 24.5 Internal flags controlling 'lto1'
  ======================================
  
! The following flags are passed into 'lto1' and are not meant to be used
  directly from the command line.
  
     * -fwpa This option runs the serial part of the link-time optimizer
       performing the inter-procedural propagation (WPA mode).  The
       compiler reads in summary information from all inputs and performs
!      an analysis based on summary information only.  It generates object
!      files for subsequent runs of the link-time optimizer where
       individual object files are optimized using both summary
       information from the WPA mode and the actual function bodies.  It
       then drives the LTRANS phase.
*************** directly from the command line.
*** 41467,41479 ****
       previous run of the LTO in WPA mode.  In the LTRANS mode, LTO
       optimizes an object and produces the final assembly.
  
!    * -fltrans-output-list=FILE This option specifies a file to which
!      the names of LTRANS output files are written.  This option is only
!      meaningful in conjunction with `-fwpa'.
  
!    * -fresolution=FILE This option specifies the linker resolution
!      file.  This option is only meaningful in conjunction with `-fwpa'
!      and as option to pass through to the LTO linker plugin.
  
  
  File: gccint.info,  Node: Match and Simplify,  Next: Funding,  Prev: LTO,  Up: Top
--- 41015,41027 ----
       previous run of the LTO in WPA mode.  In the LTRANS mode, LTO
       optimizes an object and produces the final assembly.
  
!    * -fltrans-output-list=FILE This option specifies a file to which the
!      names of LTRANS output files are written.  This option is only
!      meaningful in conjunction with '-fwpa'.
  
!    * -fresolution=FILE This option specifies the linker resolution file.
!      This option is only meaningful in conjunction with '-fwpa' and as
!      option to pass through to the LTO linker plugin.
  
  
  File: gccint.info,  Node: Match and Simplify,  Next: Funding,  Prev: LTO,  Up: Top
*************** File: gccint.info,  Node: Match and Simp
*** 41481,41493 ****
  25 Match and Simplify
  *********************
  
! The GIMPLE and GENERIC pattern matching project match-and-simplify
! tries to address several issues.
  
    1. unify expression simplifications currently spread and duplicated
!       over separate files like fold-const.c, gimple-fold.c and
!      builtins.c
! 
    2. allow for a cheap way to implement building and simplifying
       non-trivial GIMPLE expressions, avoiding the need to go through
       building and simplifying GENERIC via fold_buildN and then
--- 41029,41039 ----
  25 Match and Simplify
  *********************
  
! The GIMPLE and GENERIC pattern matching project match-and-simplify tries
! to address several issues.
  
    1. unify expression simplifications currently spread and duplicated
!      over separate files like fold-const.c, gimple-fold.c and builtins.c
    2. allow for a cheap way to implement building and simplifying
       non-trivial GIMPLE expressions, avoiding the need to go through
       building and simplifying GENERIC via fold_buildN and then
*************** File: gccint.info,  Node: GIMPLE API,  N
*** 41516,41542 ****
            tree, gimple_seq *, tree (*)(tree))
   -- GIMPLE function: tree gimple_simplify (enum tree_code, tree, tree,
            tree, tree, gimple_seq *, tree (*)(tree))
!  -- GIMPLE function: tree gimple_simplify (enum built_in_function,
            tree, tree, gimple_seq *, tree (*)(tree))
!  -- GIMPLE function: tree gimple_simplify (enum built_in_function,
            tree, tree, tree, gimple_seq *, tree (*)(tree))
-  -- GIMPLE function: tree gimple_simplify (enum built_in_function,
-           tree, tree, tree, tree, gimple_seq *, tree (*)(tree))
       The main GIMPLE API entry to the expression simplifications
       mimicing that of the GENERIC fold_{unary,binary,ternary} functions.
  
   thus providing n-ary overloads for operation or function.  The
  additional arguments are a gimple_seq where built statements are
! inserted on (if `NULL' then simplifications requiring new statements
! are not performed) and a valueization hook that can be used to tie
  simplifications to a SSA lattice.
  
!  In addition to those APIs `fold_stmt' is overloaded with a
! valueization hook:
  
   -- bool: fold_stmt (gimple_stmt_iterator *, tree (*)(tree));
  
!  Ontop of these a `fold_buildN'-like API for GIMPLE is introduced:
  
   -- GIMPLE function: tree gimple_build (gimple_seq *, location_t, enum
            tree_code, tree, tree, tree (*valueize) (tree) = NULL);
--- 41062,41088 ----
            tree, gimple_seq *, tree (*)(tree))
   -- GIMPLE function: tree gimple_simplify (enum tree_code, tree, tree,
            tree, tree, gimple_seq *, tree (*)(tree))
!  -- GIMPLE function: tree gimple_simplify (enum built_in_function, tree,
!           tree, gimple_seq *, tree (*)(tree))
!  -- GIMPLE function: tree gimple_simplify (enum built_in_function, tree,
            tree, tree, gimple_seq *, tree (*)(tree))
!  -- GIMPLE function: tree gimple_simplify (enum built_in_function, tree,
            tree, tree, tree, gimple_seq *, tree (*)(tree))
       The main GIMPLE API entry to the expression simplifications
       mimicing that of the GENERIC fold_{unary,binary,ternary} functions.
  
   thus providing n-ary overloads for operation or function.  The
  additional arguments are a gimple_seq where built statements are
! inserted on (if 'NULL' then simplifications requiring new statements are
! not performed) and a valueization hook that can be used to tie
  simplifications to a SSA lattice.
  
!  In addition to those APIs 'fold_stmt' is overloaded with a valueization
! hook:
  
   -- bool: fold_stmt (gimple_stmt_iterator *, tree (*)(tree));
  
!  Ontop of these a 'fold_buildN'-like API for GIMPLE is introduced:
  
   -- GIMPLE function: tree gimple_build (gimple_seq *, location_t, enum
            tree_code, tree, tree, tree (*valueize) (tree) = NULL);
*************** valueization hook:
*** 41549,41564 ****
            built_in_function, tree, tree, tree (*valueize) (tree) =
            NULL);
   -- GIMPLE function: tree gimple_build (gimple_seq *, location_t, enum
!           built_in_function, tree, tree, tree, tree (*valueize) (tree)
!           = NULL);
   -- GIMPLE function: tree gimple_build (gimple_seq *, location_t, enum
            built_in_function, tree, tree, tree, tree, tree (*valueize)
            (tree) = NULL);
   -- GIMPLE function: tree gimple_convert (gimple_seq *, location_t,
            tree, tree);
  
!  which is supposed to replace `force_gimple_operand (fold_buildN (...),
! ...)' and calls to `fold_convert'.  Overloads without the `location_t'
  argument exist.  Built statements are inserted on the provided sequence
  and simplification is performed using the optional valueization hook.
  
--- 41095,41110 ----
            built_in_function, tree, tree, tree (*valueize) (tree) =
            NULL);
   -- GIMPLE function: tree gimple_build (gimple_seq *, location_t, enum
!           built_in_function, tree, tree, tree, tree (*valueize) (tree) =
!           NULL);
   -- GIMPLE function: tree gimple_build (gimple_seq *, location_t, enum
            built_in_function, tree, tree, tree, tree, tree (*valueize)
            (tree) = NULL);
   -- GIMPLE function: tree gimple_convert (gimple_seq *, location_t,
            tree, tree);
  
!  which is supposed to replace 'force_gimple_operand (fold_buildN (...),
! ...)' and calls to 'fold_convert'.  Overloads without the 'location_t'
  argument exist.  Built statements are inserted on the provided sequence
  and simplification is performed using the optional valueization hook.
  
*************** an example from the match.pd file:
*** 41577,41627 ****
         @0)
  
   This example contains all required parts of an expression
! simplification.  A simplification is wrapped inside a `(simplify ...)'
! expression.  That contains at least two operands - an expression that
! is matched with the GIMPLE or GENERIC IL and a replacement expression
! that is returned if the match was successful.
  
!  Expressions have an operator ID, `bit_and' in this case.  Expressions
! can be lower-case tree codes with `_expr' stripped off or builtin
! function code names in all-caps, like `BUILT_IN_SQRT'.
  
!  `@n' denotes a so-called capture.  It captures the operand and lets
! you refer to it in other places of the match-and-simplify.  In the
! above example it is refered to in the replacement expression.  Captures
! are `@' followed by a number or an identifier.
  
       (simplify
         (bit_xor @0 @0)
         { build_zero_cst (type); })
  
!  In this example `@0' is mentioned twice which constrains the matched
  expression to have two equal operands.  This example also introduces
  operands written in C code.  These can be used in the expression
! replacements and are supposed to evaluate to a tree node which has to
! be a valid GIMPLE operand (so you cannot generate expressions in C
! code).
  
       (simplify
         (trunc_mod integer_zerop@0 @1)
         (if (!integer_zerop (@1))
          @0))
  
!  Here `@0' captures the first operand of the trunc_mod expression which
! is also predicated with `integer_zerop'.  Expression operands may be
  either expressions, predicates or captures.  Captures can be
  unconstrained or capture expresions or predicates.
  
   This example introduces an optional operand of simplify, the
! if-expression.  This condition is evaluated after the expression
! matched in the IL and is required to evaluate to true to enable the
! replacement expression in the second operand position.  The expression
! operand of the `if' is a standard C expression which may contain
! references to captures.  The `if' has an optional third operand which
! may contain the replacement expression that is enabled when the
! condition evaluates to false.
  
!  A `if' expression can be used to specify a common condition for
  multiple simplify patterns, avoiding the need to repeat that multiple
  times:
  
--- 41123,41172 ----
         @0)
  
   This example contains all required parts of an expression
! simplification.  A simplification is wrapped inside a '(simplify ...)'
! expression.  That contains at least two operands - an expression that is
! matched with the GIMPLE or GENERIC IL and a replacement expression that
! is returned if the match was successful.
  
!  Expressions have an operator ID, 'bit_and' in this case.  Expressions
! can be lower-case tree codes with '_expr' stripped off or builtin
! function code names in all-caps, like 'BUILT_IN_SQRT'.
  
!  '@n' denotes a so-called capture.  It captures the operand and lets you
! refer to it in other places of the match-and-simplify.  In the above
! example it is refered to in the replacement expression.  Captures are
! '@' followed by a number or an identifier.
  
       (simplify
         (bit_xor @0 @0)
         { build_zero_cst (type); })
  
!  In this example '@0' is mentioned twice which constrains the matched
  expression to have two equal operands.  This example also introduces
  operands written in C code.  These can be used in the expression
! replacements and are supposed to evaluate to a tree node which has to be
! a valid GIMPLE operand (so you cannot generate expressions in C code).
  
       (simplify
         (trunc_mod integer_zerop@0 @1)
         (if (!integer_zerop (@1))
          @0))
  
!  Here '@0' captures the first operand of the trunc_mod expression which
! is also predicated with 'integer_zerop'.  Expression operands may be
  either expressions, predicates or captures.  Captures can be
  unconstrained or capture expresions or predicates.
  
   This example introduces an optional operand of simplify, the
! if-expression.  This condition is evaluated after the expression matched
! in the IL and is required to evaluate to true to enable the replacement
! expression in the second operand position.  The expression operand of
! the 'if' is a standard C expression which may contain references to
! captures.  The 'if' has an optional third operand which may contain the
! replacement expression that is enabled when the condition evaluates to
! false.
  
!  A 'if' expression can be used to specify a common condition for
  multiple simplify patterns, avoiding the need to repeat that multiple
  times:
  
*************** times:
*** 41634,41646 ****
           (minus (minus @0 @1) @0)
           (negate @1)))
  
!  Note that `if's in outer position do not have the optional else clause
  but instead have multiple then clauses.
  
   Ifs can be nested.
  
!  There exists a `switch' expression which can be used to chain
! conditions avoiding nesting `if's too much:
  
       (simplify
        (simple_comparison @0 REAL_CST@1)
--- 41179,41191 ----
           (minus (minus @0 @1) @0)
           (negate @1)))
  
!  Note that 'if's in outer position do not have the optional else clause
  but instead have multiple then clauses.
  
   Ifs can be nested.
  
!  There exists a 'switch' expression which can be used to chain
! conditions avoiding nesting 'if's too much:
  
       (simplify
        (simple_comparison @0 REAL_CST@1)
*************** conditions avoiding nesting `if's too mu
*** 41666,41673 ****
               && ! HONOR_SNANS (@1))
           { constant_boolean_node (cmp == NE_EXPR, type); }))))
  
!  which has the second `if' in the else operand of the first.  The
! `switch' expression takes `if' expressions as operands (which may not
  have else clauses) and as a last operand a replacement expression which
  should be enabled by default if no other condition evaluated to true.
  
--- 41211,41218 ----
               && ! HONOR_SNANS (@1))
           { constant_boolean_node (cmp == NE_EXPR, type); }))))
  
!  which has the second 'if' in the else operand of the first.  The
! 'switch' expression takes 'if' expressions as operands (which may not
  have else clauses) and as a last operand a replacement expression which
  should be enabled by default if no other condition evaluated to true.
  
*************** should be enabled by default if no other
*** 41690,41708 ****
         })
       #endif
  
!  In the above example, `@2' captures the result of the expression
! `(addr @0)'.  For outermost expression only its type can be captured,
! and the keyword `type' is reserved for this purpose.  The above example
! also gives a way to conditionalize patterns to only apply to `GIMPLE'
! or `GENERIC' by means of using the pre-defined preprocessor macros
! `GIMPLE' and `GENERIC' and using preprocessor directives.
  
       (simplify
         (bit_and:c integral_op_p@0 (bit_ior:c (bit_not @0) @1))
         (bit_and @1 @0))
  
   Here we introduce flags on match expressions.  The flag used above,
! `c', denotes that the expression should be also matched commutated.
  Thus the above match expression is really the following four match
  expressions:
  
--- 41235,41253 ----
         })
       #endif
  
!  In the above example, '@2' captures the result of the expression '(addr
! @0)'.  For outermost expression only its type can be captured, and the
! keyword 'type' is reserved for this purpose.  The above example also
! gives a way to conditionalize patterns to only apply to 'GIMPLE' or
! 'GENERIC' by means of using the pre-defined preprocessor macros 'GIMPLE'
! and 'GENERIC' and using preprocessor directives.
  
       (simplify
         (bit_and:c integral_op_p@0 (bit_ior:c (bit_not @0) @1))
         (bit_and @1 @0))
  
   Here we introduce flags on match expressions.  The flag used above,
! 'c', denotes that the expression should be also matched commutated.
  Thus the above match expression is really the following four match
  expressions:
  
*************** expressions:
*** 41715,41729 ****
  before matching, so for example constant operands always come second in
  commutative expressions.
  
!  The second supported flag is `s' which tells the code generator to
! fail the pattern if the expression marked with `s' does have more than
! one use.  For example in
  
       (simplify
         (pointer_plus (pointer_plus:s @0 @1) @3)
         (pointer_plus @0 (plus @1 @3)))
  
!  this avoids the association if `(pointer_plus @0 @1)' is used outside
  of the matched expression and thus it would stay live and not trivially
  removed by dead code elimination.
  
--- 41260,41274 ----
  before matching, so for example constant operands always come second in
  commutative expressions.
  
!  The second supported flag is 's' which tells the code generator to fail
! the pattern if the expression marked with 's' does have more than one
! use.  For example in
  
       (simplify
         (pointer_plus (pointer_plus:s @0 @1) @3)
         (pointer_plus @0 (plus @1 @3)))
  
!  this avoids the association if '(pointer_plus @0 @1)' is used outside
  of the matched expression and thus it would stay live and not trivially
  removed by dead code elimination.
  
*************** removed by dead code elimination.
*** 41734,41741 ****
           (op @0 integer_zerop)
           @0))
  
!  A `for' expression can be used to repeat a pattern for each operator
! specified, substituting `op'.  `for' can be nested and a `for' can have
  multiple operators to iterate.
  
       (for opa (plus minus)
--- 41279,41286 ----
           (op @0 integer_zerop)
           @0))
  
!  A 'for' expression can be used to repeat a pattern for each operator
! specified, substituting 'op'.  'for' can be nested and a 'for' can have
  multiple operators to iterate.
  
       (for opa (plus minus)
*************** multiple operators to iterate.
*** 41743,41766 ****
         (for opc (plus minus)
           (simplify...
  
!  In this example the pattern will be repeated four times with `opa,
! opb, opc' being `plus, minus, plus', `plus, minus, minus', `minus,
! plus, plus', `minus, plus, minus'.
  
!  To avoid repeating operator lists in `for' you can name them via
  
       (define_operator_list pmm plus minus mult)
  
!  and use them in `for' operator lists where they get expanded.
  
       (for opa (pmm trunc_div)
        (simplify...
  
!  So this example iterates over `plus', `minus', `mult' and `trunc_div'.
  
   Using operator lists can also remove the need to explicitely write a
! `for'.  All operator list uses that appear in a `simplify' or `match'
! pattern in operator positions will implicitely be added to a new `for'.
  For example
  
       (define_operator_list SQRT BUILT_IN_SQRTF BUILT_IN_SQRT BUILT_IN_SQRTL)
--- 41288,41311 ----
         (for opc (plus minus)
           (simplify...
  
!  In this example the pattern will be repeated four times with 'opa, opb,
! opc' being 'plus, minus, plus', 'plus, minus, minus', 'minus, plus,
! plus', 'minus, plus, minus'.
  
!  To avoid repeating operator lists in 'for' you can name them via
  
       (define_operator_list pmm plus minus mult)
  
!  and use them in 'for' operator lists where they get expanded.
  
       (for opa (pmm trunc_div)
        (simplify...
  
!  So this example iterates over 'plus', 'minus', 'mult' and 'trunc_div'.
  
   Using operator lists can also remove the need to explicitely write a
! 'for'.  All operator list uses that appear in a 'simplify' or 'match'
! pattern in operator positions will implicitely be added to a new 'for'.
  For example
  
       (define_operator_list SQRT BUILT_IN_SQRTF BUILT_IN_SQRT BUILT_IN_SQRTL)
*************** For example
*** 41777,41788 ****
         (SQRT (POW @0 @1))
         (POW (abs @0) (mult @1 { built_real (TREE_TYPE (@1), dconsthalf); }))))
  
!  `for's and operator lists can include the special identifier `null'
  that matches nothing and can never be generated.  This can be used to
! pad an operator list so that it has a standard form, even if there
! isn't a suitable operator for every form.
  
!  Another building block are `with' expressions in the result expression
  which nest the generated code in a new C block followed by its argument:
  
       (simplify
--- 41322,41333 ----
         (SQRT (POW @0 @1))
         (POW (abs @0) (mult @1 { built_real (TREE_TYPE (@1), dconsthalf); }))))
  
!  'for's and operator lists can include the special identifier 'null'
  that matches nothing and can never be generated.  This can be used to
! pad an operator list so that it has a standard form, even if there isn't
! a suitable operator for every form.
  
!  Another building block are 'with' expressions in the result expression
  which nest the generated code in a new C block followed by its argument:
  
       (simplify
*************** which nest the generated code in a new C
*** 41790,41826 ****
        (with { tree utype = unsigned_type_for (type); }
         (convert (mult (convert:utype @0) (convert:utype @1)))))
  
!  This allows code nested in the `with' to refer to the declared
  variables.  In the above case we use the feature to specify the type of
! a generated expression with the `:type' syntax where `type' needs to be
! an identifier that refers to the desired type.  Usually the types of
! the generated result expressions are determined from the context, but
  sometimes like in the above case it is required that you specify them
  explicitely.
  
   As intermediate conversions are often optional there is a way to avoid
  the need to repeat patterns both with and without such conversions.
! Namely you can mark a conversion as being optional with a `?':
  
       (simplify
        (eq (convert@0 @1) (convert? @2))
        (eq @1 (convert @2)))
  
!  which will match both `(eq (convert @1) (convert @2))' and `(eq
  (convert @1) @2)'.  The optional converts are supposed to be all either
! present or not, thus `(eq (convert? @1) (convert? @2))' will result in
  two patterns only.  If you want to match all four combinations you have
! access to two additional conditional converts as in `(eq (convert1? @1)
  (convert2? @2))'.
  
   Predicates available from the GCC middle-end need to be made available
! explicitely via `define_predicates':
  
       (define_predicates
        integer_onep integer_zerop integer_all_onesp)
  
   You can also define predicates using the pattern matching language and
! the `match' form:
  
       (match negate_expr_p
        INTEGER_CST
--- 41335,41371 ----
        (with { tree utype = unsigned_type_for (type); }
         (convert (mult (convert:utype @0) (convert:utype @1)))))
  
!  This allows code nested in the 'with' to refer to the declared
  variables.  In the above case we use the feature to specify the type of
! a generated expression with the ':type' syntax where 'type' needs to be
! an identifier that refers to the desired type.  Usually the types of the
! generated result expressions are determined from the context, but
  sometimes like in the above case it is required that you specify them
  explicitely.
  
   As intermediate conversions are often optional there is a way to avoid
  the need to repeat patterns both with and without such conversions.
! Namely you can mark a conversion as being optional with a '?':
  
       (simplify
        (eq (convert@0 @1) (convert? @2))
        (eq @1 (convert @2)))
  
!  which will match both '(eq (convert @1) (convert @2))' and '(eq
  (convert @1) @2)'.  The optional converts are supposed to be all either
! present or not, thus '(eq (convert? @1) (convert? @2))' will result in
  two patterns only.  If you want to match all four combinations you have
! access to two additional conditional converts as in '(eq (convert1? @1)
  (convert2? @2))'.
  
   Predicates available from the GCC middle-end need to be made available
! explicitely via 'define_predicates':
  
       (define_predicates
        integer_onep integer_zerop integer_all_onesp)
  
   You can also define predicates using the pattern matching language and
! the 'match' form:
  
       (match negate_expr_p
        INTEGER_CST
*************** the `match' form:
*** 41829,41839 ****
       (match negate_expr_p
        (negate @0))
  
!  This shows that for `match' expressions there is `t' available which
  captures the outermost expression (something not possible in the
! `simplify' context).  As you can see `match' has an identifier as first
  operand which is how you refer to the predicate in patterns.  Multiple
! `match' for the same identifier add additional cases where the predicate
  matches.
  
   Predicates can also match an expression in which case you need to
--- 41374,41384 ----
       (match negate_expr_p
        (negate @0))
  
!  This shows that for 'match' expressions there is 't' available which
  captures the outermost expression (something not possible in the
! 'simplify' context).  As you can see 'match' has an identifier as first
  operand which is how you refer to the predicate in patterns.  Multiple
! 'match' for the same identifier add additional cases where the predicate
  matches.
  
   Predicates can also match an expression in which case you need to
*************** to free software developers--the Free So
*** 41871,41878 ****
  
   The way to convince distributors to do this is to demand it and expect
  it from them.  So when you compare distributors, judge them partly by
! how much they give to free software development.  Show distributors
! they must compete to be the one who gives the most.
  
   To make this approach work, you must insist on numbers that you can
  compare, such as, "We will donate ten dollars to the Frobnitz project
--- 41416,41423 ----
  
   The way to convince distributors to do this is to demand it and expect
  it from them.  So when you compare distributors, judge them partly by
! how much they give to free software development.  Show distributors they
! must compete to be the one who gives the most.
  
   To make this approach work, you must insist on numbers that you can
  compare, such as, "We will donate ten dollars to the Frobnitz project
*************** for comparison.
*** 41882,41889 ****
  
   Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.
! If the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
   Some redistributors do development work themselves.  This is useful
--- 41427,41434 ----
  
   Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.  If
! the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
   Some redistributors do development work themselves.  This is useful
*************** difference than others.  For example, ma
*** 41893,41900 ****
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection
! contribute more; major new features or packages contribute the most.
  
   By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
--- 41438,41445 ----
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection contribute
! more; major new features or packages contribute the most.
  
   By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
*************** now widely used; though these systems ar
*** 41918,41925 ****
  they are more accurately called GNU/Linux systems.
  
   For more information, see:
!      `http://www.gnu.org/'
!      `http://www.gnu.org/gnu/linux-and-gnu.html'
  
  
  File: gccint.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: GNU Project,  Up: Top
--- 41463,41470 ----
  they are more accurately called GNU/Linux systems.
  
   For more information, see:
!      <http://www.gnu.org/>
!      <http://www.gnu.org/gnu/linux-and-gnu.html>
  
  
  File: gccint.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: GNU Project,  Up: Top
*************** GNU General Public License
*** 41929,41935 ****
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
--- 41474,41480 ----
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
*************** GNU General Public License for most of o
*** 41949,41975 ****
  any other work released this way by its authors.  You can apply it to
  your programs, too.
  
!  When we speak of free software, we are referring to freedom, not
! price.  Our General Public Licenses are designed to make sure that you
! have the freedom to distribute copies of free software (and charge for
! them if you wish), that you receive source code or can get it if you
! want it, that you can change the software or use pieces of it in new
! free programs, and that you know you can do these things.
  
   To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you
! have certain responsibilities if you distribute copies of the software,
! or if you modify it: responsibilities to respect the freedom of others.
  
!  For example, if you distribute copies of such a program, whether
! gratis or for a fee, you must pass on to the recipients the same
! freedoms that you received.  You must make sure that they, too, receive
! or can get the source code.  And you must show them these terms so they
! know their rights.
  
!  Developers that use the GNU GPL protect your rights with two steps:
! (1) assert copyright on the software, and (2) offer you this License
! giving you legal permission to copy, distribute and/or modify it.
  
   For the developers' and authors' protection, the GPL clearly explains
  that there is no warranty for this free software.  For both users' and
--- 41494,41520 ----
  any other work released this way by its authors.  You can apply it to
  your programs, too.
  
!  When we speak of free software, we are referring to freedom, not price.
! Our General Public Licenses are designed to make sure that you have the
! freedom to distribute copies of free software (and charge for them if
! you wish), that you receive source code or can get it if you want it,
! that you can change the software or use pieces of it in new free
! programs, and that you know you can do these things.
  
   To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you have
! certain responsibilities if you distribute copies of the software, or if
! you modify it: responsibilities to respect the freedom of others.
  
!  For example, if you distribute copies of such a program, whether gratis
! or for a fee, you must pass on to the recipients the same freedoms that
! you received.  You must make sure that they, too, receive or can get the
! source code.  And you must show them these terms so they know their
! rights.
  
!  Developers that use the GNU GPL protect your rights with two steps: (1)
! assert copyright on the software, and (2) offer you this License giving
! you legal permission to copy, distribute and/or modify it.
  
   For the developers' and authors' protection, the GPL clearly explains
  that there is no warranty for this free software.  For both users' and
*************** changed, so that their problems will not
*** 41978,41993 ****
  authors of previous versions.
  
   Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the
! manufacturer can do so.  This is fundamentally incompatible with the
! aim of protecting users' freedom to change the software.  The
! systematic pattern of such abuse occurs in the area of products for
! individuals to use, which is precisely where it is most unacceptable.
! Therefore, we have designed this version of the GPL to prohibit the
! practice for those products.  If such problems arise substantially in
! other domains, we stand ready to extend this provision to those domains
! in future versions of the GPL, as needed to protect the freedom of
! users.
  
   Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
--- 41523,41537 ----
  authors of previous versions.
  
   Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the manufacturer
! can do so.  This is fundamentally incompatible with the aim of
! protecting users' freedom to change the software.  The systematic
! pattern of such abuse occurs in the area of products for individuals to
! use, which is precisely where it is most unacceptable.  Therefore, we
! have designed this version of the GPL to prohibit the practice for those
! products.  If such problems arise substantially in other domains, we
! stand ready to extend this provision to those domains in future versions
! of the GPL, as needed to protect the freedom of users.
  
   Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
*************** TERMS AND CONDITIONS
*** 42024,42031 ****
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it
!      on a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
--- 41568,41575 ----
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it on
!      a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
*************** TERMS AND CONDITIONS
*** 42039,42046 ****
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may
!      convey the work under this License, and how to view a copy of this
       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
--- 41583,41590 ----
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may convey
!      the work under this License, and how to view a copy of this
       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
*************** TERMS AND CONDITIONS
*** 42048,42055 ****
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any
!      non-source form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
--- 41592,41599 ----
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any non-source
!      form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
*************** TERMS AND CONDITIONS
*** 42060,42069 ****
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work
!      with that Major Component, or to implement a Standard Interface
!      for which an implementation is available to the public in source
!      code form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
--- 41604,41613 ----
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work with
!      that Major Component, or to implement a Standard Interface for
!      which an implementation is available to the public in source code
!      form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
*************** TERMS AND CONDITIONS
*** 42071,42085 ****
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including
!      scripts to control those activities.  However, it does not include
!      the work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files
!      associated with source files for the work, and the source code for
!      shared libraries and dynamically linked subprograms that the work
!      is specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
--- 41615,41629 ----
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including scripts
!      to control those activities.  However, it does not include the
!      work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files associated
!      with source files for the work, and the source code for shared
!      libraries and dynamically linked subprograms that the work is
!      specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
*************** TERMS AND CONDITIONS
*** 42096,42117 ****
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output,
!      given its content, constitutes a covered work.  This License
!      acknowledges your rights of fair use or other equivalent, as
!      provided by copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for
!      you, or provide you with facilities for running those works,
!      provided that you comply with the terms of this License in
!      conveying all material for which you do not control copyright.
!      Those thus making or running the covered works for you must do so
!      exclusively on your behalf, under your direction and control, on
!      terms that prohibit them from making any copies of your
!      copyrighted material outside their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
--- 41640,41661 ----
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output, given
!      its content, constitutes a covered work.  This License acknowledges
!      your rights of fair use or other equivalent, as provided by
!      copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for you,
!      or provide you with facilities for running those works, provided
!      that you comply with the terms of this License in conveying all
!      material for which you do not control copyright.  Those thus making
!      or running the covered works for you must do so exclusively on your
!      behalf, under your direction and control, on terms that prohibit
!      them from making any copies of your copyrighted material outside
!      their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
*************** TERMS AND CONDITIONS
*** 42128,42135 ****
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention
!      to limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
--- 41672,41679 ----
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention to
!      limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
*************** TERMS AND CONDITIONS
*** 42199,42206 ****
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for
!           as long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
--- 41743,41750 ----
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for as
!           long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
*************** TERMS AND CONDITIONS
*** 42210,42241 ****
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of
!           the written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access
!           to the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated
!           by you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to
!           the object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long
!           as needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
- 
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
--- 41754,41784 ----
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of the
!           written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access to
!           the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated by
!           you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to the
!           object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long as
!           needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
*************** TERMS AND CONDITIONS
*** 42243,42250 ****
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product
!      is a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
--- 41786,41793 ----
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product is
!      a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
*************** TERMS AND CONDITIONS
*** 42275,42285 ****
  
       The requirement to provide Installation Information does not
       include a requirement to continue to provide support service,
!      warranty, or updates for a work that has been modified or
!      installed by the recipient, or for the User Product in which it
!      has been modified or installed.  Access to a network may be denied
!      when the modification itself materially and adversely affects the
!      operation of the network or violates the rules and protocols for
       communication across the network.
  
       Corresponding Source conveyed, and Installation Information
--- 41818,41828 ----
  
       The requirement to provide Installation Information does not
       include a requirement to continue to provide support service,
!      warranty, or updates for a work that has been modified or installed
!      by the recipient, or for the User Product in which it has been
!      modified or installed.  Access to a network may be denied when the
!      modification itself materially and adversely affects the operation
!      of the network or violates the rules and protocols for
       communication across the network.
  
       Corresponding Source conveyed, and Installation Information
*************** TERMS AND CONDITIONS
*** 42309,42316 ****
  
       Notwithstanding any other provision of this License, for material
       you add to a covered work, you may (if authorized by the copyright
!      holders of that material) supplement the terms of this License
!      with terms:
  
         a. Disclaiming warranty or limiting liability differently from
            the terms of sections 15 and 16 of this License; or
--- 41852,41859 ----
  
       Notwithstanding any other provision of this License, for material
       you add to a covered work, you may (if authorized by the copyright
!      holders of that material) supplement the terms of this License with
!      terms:
  
         a. Disclaiming warranty or limiting liability differently from
            the terms of sections 15 and 16 of this License; or
*************** TERMS AND CONDITIONS
*** 42320,42328 ****
            Legal Notices displayed by works containing it; or
  
         c. Prohibiting misrepresentation of the origin of that material,
!           or requiring that modified versions of such material be
!           marked in reasonable ways as different from the original
!           version; or
  
         d. Limiting the use for publicity purposes of names of licensors
            or authors of the material; or
--- 41863,41870 ----
            Legal Notices displayed by works containing it; or
  
         c. Prohibiting misrepresentation of the origin of that material,
!           or requiring that modified versions of such material be marked
!           in reasonable ways as different from the original version; or
  
         d. Limiting the use for publicity purposes of names of licensors
            or authors of the material; or
*************** TERMS AND CONDITIONS
*** 42341,42351 ****
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or
!      conveying under this License, you may add to a covered work
!      material governed by the terms of that license document, provided
!      that the further restriction does not survive such relicensing or
!      conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
--- 41883,41892 ----
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or conveying
!      under this License, you may add to a covered work material governed
!      by the terms of that license document, provided that the further
!      restriction does not survive such relicensing or conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
*************** TERMS AND CONDITIONS
*** 42361,42373 ****
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under
!      the third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 41902,41914 ----
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under the
!      third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** TERMS AND CONDITIONS
*** 42379,42388 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, you do not qualify to receive new
!      licenses for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
--- 41920,41929 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, you do not qualify to receive new licenses
!      for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
*************** TERMS AND CONDITIONS
*** 42396,42402 ****
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!  10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
--- 41937,41943 ----
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!   10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
*************** TERMS AND CONDITIONS
*** 42410,42430 ****
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to
!      possession of the Corresponding Source of the work from the
!      predecessor in interest, if the predecessor has it or can get it
!      with reasonable efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for
!      exercise of rights granted under this License, and you may not
!      initiate litigation (including a cross-claim or counterclaim in a
!      lawsuit) alleging that any patent claim is infringed by making,
!      using, selling, offering for sale, or importing the Program or any
!      portion of it.
  
!  11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
--- 41951,41971 ----
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to possession
!      of the Corresponding Source of the work from the predecessor in
!      interest, if the predecessor has it or can get it with reasonable
!      efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for exercise
!      of rights granted under this License, and you may not initiate
!      litigation (including a cross-claim or counterclaim in a lawsuit)
!      alleging that any patent claim is infringed by making, using,
!      selling, offering for sale, or importing the Program or any portion
!      of it.
  
!   11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
*************** TERMS AND CONDITIONS
*** 42444,42458 ****
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its
!      contributor version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To
!      "grant" such a patent license to a party means to make such an
!      agreement or commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
--- 41985,41999 ----
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its contributor
!      version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To "grant"
!      such a patent license to a party means to make such an agreement or
!      commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
*************** TERMS AND CONDITIONS
*** 42482,42517 ****
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under
!      which you make payment to the third party based on the extent of
!      your activity of conveying the work, and under which the third
!      party grants, to any of the parties who would receive the covered
!      work from you, a discriminatory patent license (a) in connection
!      with copies of the covered work conveyed by you (or copies made
!      from those copies), or (b) primarily for and in connection with
!      specific products or compilations that contain the covered work,
!      unless you entered into that arrangement, or that patent license
!      was granted, prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!  12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order,
!      agreement or otherwise) that contradict the conditions of this
!      License, they do not excuse you from the conditions of this
!      License.  If you cannot convey a covered work so as to satisfy
!      simultaneously your obligations under this License and any other
!      pertinent obligations, then as a consequence you may not convey it
!      at all.  For example, if you agree to terms that obligate you to
!      collect a royalty for further conveying from those to whom you
!      convey the Program, the only way you could satisfy both those
!      terms and this License would be to refrain entirely from conveying
!      the Program.
  
!  13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
--- 42023,42057 ----
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under which
!      you make payment to the third party based on the extent of your
!      activity of conveying the work, and under which the third party
!      grants, to any of the parties who would receive the covered work
!      from you, a discriminatory patent license (a) in connection with
!      copies of the covered work conveyed by you (or copies made from
!      those copies), or (b) primarily for and in connection with specific
!      products or compilations that contain the covered work, unless you
!      entered into that arrangement, or that patent license was granted,
!      prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!   12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order, agreement
!      or otherwise) that contradict the conditions of this License, they
!      do not excuse you from the conditions of this License.  If you
!      cannot convey a covered work so as to satisfy simultaneously your
!      obligations under this License and any other pertinent obligations,
!      then as a consequence you may not convey it at all.  For example,
!      if you agree to terms that obligate you to collect a royalty for
!      further conveying from those to whom you convey the Program, the
!      only way you could satisfy both those terms and this License would
!      be to refrain entirely from conveying the Program.
  
!   13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
*************** TERMS AND CONDITIONS
*** 42522,42543 ****
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!  14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.
!      Such new versions will be similar in spirit to the present
!      version, but may differ in detail to address new problems or
!      concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the
!      Free Software Foundation.  If the Program does not specify a
!      version number of the GNU General Public License, you may choose
!      any version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
--- 42062,42082 ----
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!   14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.  Such
!      new versions will be similar in spirit to the present version, but
!      may differ in detail to address new problems or concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the Free
!      Software Foundation.  If the Program does not specify a version
!      number of the GNU General Public License, you may choose any
!      version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
*************** TERMS AND CONDITIONS
*** 42549,42572 ****
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!  15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!  16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
!      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
--- 42088,42111 ----
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!   15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!   16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
!      DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
*************** TERMS AND CONDITIONS
*** 42574,42580 ****
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!  17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
--- 42113,42119 ----
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!   17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
*************** TERMS AND CONDITIONS
*** 42583,42589 ****
       connection with the Program, unless a warranty or assumption of
       liability accompanies a copy of the Program in return for a fee.
  
- 
  END OF TERMS AND CONDITIONS
  ===========================
  
--- 42122,42127 ----
*************** possible use to the public, the best way
*** 42595,42603 ****
  free software which everyone can redistribute and change under these
  terms.
  
!  To do so, attach the following notices to the program.  It is safest
! to attach them to the start of each source file to most effectively
! state the exclusion of warranty; and each file should have at least the
  "copyright" line and a pointer to where the full notice is found.
  
       ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES.
--- 42133,42141 ----
  free software which everyone can redistribute and change under these
  terms.
  
!  To do so, attach the following notices to the program.  It is safest to
! attach them to the start of each source file to most effectively state
! the exclusion of warranty; and each file should have at least the
  "copyright" line and a pointer to where the full notice is found.
  
       ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES.
*************** state the exclusion of warranty; and eac
*** 42614,42633 ****
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see `http://www.gnu.org/licenses/'.
  
   Also add information on how to contact you by electronic and paper
  mail.
  
!  If the program does terminal interaction, make it output a short
! notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type `show c' for details.
  
!  The hypothetical commands `show w' and `show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
--- 42152,42171 ----
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
   Also add information on how to contact you by electronic and paper
  mail.
  
!  If the program does terminal interaction, make it output a short notice
! like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type 'show c' for details.
  
!  The hypothetical commands 'show w' and 'show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
*************** use an "about box".
*** 42635,42648 ****
   You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see `http://www.gnu.org/licenses/'.
  
   The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read `http://www.gnu.org/philosophy/why-not-lgpl.html'.
  
  
  File: gccint.info,  Node: GNU Free Documentation License,  Next: Contributors,  Prev: Copying,  Up: Top
--- 42173,42186 ----
   You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see <http://www.gnu.org/licenses/>.
  
   The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
  
  
  File: gccint.info,  Node: GNU Free Documentation License,  Next: Contributors,  Prev: Copying,  Up: Top
*************** GNU Free Documentation License
*** 42653,42659 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 42191,42197 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 42678,42698 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 42216,42236 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 42710,42721 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 42248,42259 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 42726,42752 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 42264,42290 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 42784,42791 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 42322,42329 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 42799,42810 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 42337,42347 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 42812,42851 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 42349,42387 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 42875,42905 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 42411,42440 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 42912,42922 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 42447,42457 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 42925,42939 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 42460,42474 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 42943,42950 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 42478,42485 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 42971,42990 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 42506,42525 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 43029,43036 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 42564,42571 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 43042,43074 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 42577,42609 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 43098,43104 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 42633,42638 ----
*************** notices just after the title page:
*** 43115,43121 ****
         Free Documentation License''.
  
   If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
! replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 42649,42655 ----
         Free Documentation License''.
  
   If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts,
! replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 43126,43134 ****
  situation.
  
   If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: gccint.info,  Node: Contributors,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
--- 42660,42668 ----
  situation.
  
   If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: gccint.info,  Node: Contributors,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
*************** File: gccint.info,  Node: Contributors,
*** 43136,43144 ****
  Contributors to GCC
  *******************
  
! The GCC project would like to thank its many contributors.  Without
! them the project would not have been nearly as successful as it has
! been.  Any omissions in this list are accidental.  Feel free to contact
  <law@redhat.com> or <gerald@pfeifer.com> if you have been left out or
  some of your contributions are not listed.  Please keep this list in
  alphabetical order.
--- 42670,42678 ----
  Contributors to GCC
  *******************
  
! The GCC project would like to thank its many contributors.  Without them
! the project would not have been nearly as successful as it has been.
! Any omissions in this list are accidental.  Feel free to contact
  <law@redhat.com> or <gerald@pfeifer.com> if you have been left out or
  some of your contributions are not listed.  Please keep this list in
  alphabetical order.
*************** alphabetical order.
*** 43273,43279 ****
     * The GNU Classpath project for all of their merged runtime code.
  
     * Nick Clifton for arm, mcore, fr30, v850, m32r, msp430 rx work,
!      `--help', and other random hacking.
  
     * Michael Cook for libstdc++ cleanup patches to reduce warnings.
  
--- 42807,42813 ----
     * The GNU Classpath project for all of their merged runtime code.
  
     * Nick Clifton for arm, mcore, fr30, v850, m32r, msp430 rx work,
!      '--help', and other random hacking.
  
     * Michael Cook for libstdc++ cleanup patches to reduce warnings.
  
*************** alphabetical order.
*** 43293,43300 ****
     * Paul Dale for his work to add uClinux platform support to the m68k
       backend.
  
!    * Dario Dariol contributed the four varieties of sample programs
!      that print a copy of their source.
  
     * Russell Davidson for fstream and stringstream fixes in libstdc++.
  
--- 42827,42834 ----
     * Paul Dale for his work to add uClinux platform support to the m68k
       backend.
  
!    * Dario Dariol contributed the four varieties of sample programs that
!      print a copy of their source.
  
     * Russell Davidson for fstream and stringstream fixes in libstdc++.
  
*************** alphabetical order.
*** 43309,43327 ****
  
     * Gabriel Dos Reis for contributions to G++, contributions and
       maintenance of GCC diagnostics infrastructure, libstdc++-v3,
!      including `valarray<>', `complex<>', maintaining the numerics
!      library (including that pesky `<limits>' :-) and keeping
!      up-to-date anything to do with numbers.
  
     * Ulrich Drepper for his work on glibc, testing of GCC using glibc,
!      ISO C99 support, CFG dumping support, etc., plus support of the
!      C++ runtime libraries including for all kinds of C interface
!      issues, contributing and maintaining `complex<>', sanity checking
!      and disbursement, configuration architecture, libio maintenance,
!      and early math work.
  
     * Franc,ois Dumont for his work on libstdc++-v3, especially
!      maintaining and improving `debug-mode' and associative and
       unordered containers.
  
     * Zdenek Dvorak for a new loop unroller and various fixes.
--- 42843,42861 ----
  
     * Gabriel Dos Reis for contributions to G++, contributions and
       maintenance of GCC diagnostics infrastructure, libstdc++-v3,
!      including 'valarray<>', 'complex<>', maintaining the numerics
!      library (including that pesky '<limits>' :-) and keeping up-to-date
!      anything to do with numbers.
  
     * Ulrich Drepper for his work on glibc, testing of GCC using glibc,
!      ISO C99 support, CFG dumping support, etc., plus support of the C++
!      runtime libraries including for all kinds of C interface issues,
!      contributing and maintaining 'complex<>', sanity checking and
!      disbursement, configuration architecture, libio maintenance, and
!      early math work.
  
     * Franc,ois Dumont for his work on libstdc++-v3, especially
!      maintaining and improving 'debug-mode' and associative and
       unordered containers.
  
     * Zdenek Dvorak for a new loop unroller and various fixes.
*************** alphabetical order.
*** 43373,43383 ****
     * Peter Gerwinski for various bug fixes and the Pascal front end.
  
     * Kaveh R. Ghazi for his direction via the steering committee,
!      amazing work to make `-W -Wall -W* -Werror' useful, and testing
!      GCC on a plethora of platforms.  Kaveh extends his gratitude to
!      the CAIP Center at Rutgers University for providing him with
!      computing resources to work on Free Software from the late 1980s
!      to 2010.
  
     * John Gilmore for a donation to the FSF earmarked improving GNU
       Java.
--- 42907,42916 ----
     * Peter Gerwinski for various bug fixes and the Pascal front end.
  
     * Kaveh R. Ghazi for his direction via the steering committee,
!      amazing work to make '-W -Wall -W* -Werror' useful, and testing GCC
!      on a plethora of platforms.  Kaveh extends his gratitude to the
!      CAIP Center at Rutgers University for providing him with computing
!      resources to work on Free Software from the late 1980s to 2010.
  
     * John Gilmore for a donation to the FSF earmarked improving GNU
       Java.
*************** alphabetical order.
*** 43389,43409 ****
       support, improved leaf function register allocation, and his
       direction via the steering committee.
  
!    * Jonny Grant for improvements to `collect2's' `--help'
       documentation.
  
!    * Anthony Green for his `-Os' contributions, the moxie port, and
!      Java front end work.
  
!    * Stu Grossman for gdb hacking, allowing GCJ developers to debug
!      Java code.
  
     * Michael K. Gschwind contributed the port to the PDP-11.
  
     * Richard Biener for his ongoing middle-end contributions and bug
       fixes and for release management.
  
!    * Ron Guilmette implemented the `protoize' and `unprotoize' tools,
       the support for DWARF 1 symbolic debugging information, and much of
       the support for System V Release 4.  He has also worked heavily on
       the Intel 386 and 860 support.
--- 42922,42942 ----
       support, improved leaf function register allocation, and his
       direction via the steering committee.
  
!    * Jonny Grant for improvements to 'collect2's' '--help'
       documentation.
  
!    * Anthony Green for his '-Os' contributions, the moxie port, and Java
!      front end work.
  
!    * Stu Grossman for gdb hacking, allowing GCJ developers to debug Java
!      code.
  
     * Michael K. Gschwind contributed the port to the PDP-11.
  
     * Richard Biener for his ongoing middle-end contributions and bug
       fixes and for release management.
  
!    * Ron Guilmette implemented the 'protoize' and 'unprotoize' tools,
       the support for DWARF 1 symbolic debugging information, and much of
       the support for System V Release 4.  He has also worked heavily on
       the Intel 386 and 860 support.
*************** alphabetical order.
*** 43422,43429 ****
       series 300.
  
     * Michael Hayes for various thankless work he's done trying to get
!      the c30/c40 ports functional.  Lots of loop and unroll
!      improvements and fixes.
  
     * Dara Hazeghi for wading through myriads of target-specific bug
       reports.
--- 42955,42962 ----
       series 300.
  
     * Michael Hayes for various thankless work he's done trying to get
!      the c30/c40 ports functional.  Lots of loop and unroll improvements
!      and fixes.
  
     * Dara Hazeghi for wading through myriads of target-specific bug
       reports.
*************** alphabetical order.
*** 43457,43464 ****
  
     * Falk Hueffner for working on C and optimization bug reports.
  
!    * Bernardo Innocenti for his m68k work, including merging of
!      ColdFire improvements and uClinux support.
  
     * Christian Iseli for various bug fixes.
  
--- 42990,42997 ----
  
     * Falk Hueffner for working on C and optimization bug reports.
  
!    * Bernardo Innocenti for his m68k work, including merging of ColdFire
!      improvements and uClinux support.
  
     * Christian Iseli for various bug fixes.
  
*************** alphabetical order.
*** 43511,43523 ****
     * Richard Kenner of the New York University Ultracomputer Research
       Laboratory wrote the machine descriptions for the AMD 29000, the
       DEC Alpha, the IBM RT PC, and the IBM RS/6000 as well as the
!      support for instruction attributes.  He also made changes to
!      better support RISC processors including changes to common
!      subexpression elimination, strength reduction, function calling
!      sequence handling, and condition code support, in addition to
!      generalizing the code for frame pointer elimination and delay slot
!      scheduling.  Richard Kenner was also the head maintainer of GCC
!      for several years.
  
     * Mumit Khan for various contributions to the Cygwin and Mingw32
       ports and maintaining binary releases for Microsoft Windows hosts,
--- 43044,43056 ----
     * Richard Kenner of the New York University Ultracomputer Research
       Laboratory wrote the machine descriptions for the AMD 29000, the
       DEC Alpha, the IBM RT PC, and the IBM RS/6000 as well as the
!      support for instruction attributes.  He also made changes to better
!      support RISC processors including changes to common subexpression
!      elimination, strength reduction, function calling sequence
!      handling, and condition code support, in addition to generalizing
!      the code for frame pointer elimination and delay slot scheduling.
!      Richard Kenner was also the head maintainer of GCC for several
!      years.
  
     * Mumit Khan for various contributions to the Cygwin and Mingw32
       ports and maintaining binary releases for Microsoft Windows hosts,
*************** alphabetical order.
*** 43543,43553 ****
     * Asher Langton and Mike Kumbera for contributing Cray pointer
       support to GNU Fortran, and for other GNU Fortran improvements.
  
!    * Jeff Law for his direction via the steering committee,
!      coordinating the entire egcs project and GCC 2.95, rolling out
!      snapshots and releases, handling merges from GCC2, reviewing tons
!      of patches that might have fallen through the cracks else, and
!      random but extensive hacking.
  
     * Walter Lee for work on the TILE-Gx and TILEPro ports.
  
--- 43076,43086 ----
     * Asher Langton and Mike Kumbera for contributing Cray pointer
       support to GNU Fortran, and for other GNU Fortran improvements.
  
!    * Jeff Law for his direction via the steering committee, coordinating
!      the entire egcs project and GCC 2.95, rolling out snapshots and
!      releases, handling merges from GCC2, reviewing tons of patches that
!      might have fallen through the cracks else, and random but extensive
!      hacking.
  
     * Walter Lee for work on the TILE-Gx and TILEPro ports.
  
*************** alphabetical order.
*** 43576,43582 ****
  
     * Weiwen Liu for testing and various bug fixes.
  
!    * Manuel Lo'pez-Iba'n~ez for improving `-Wconversion' and many other
       diagnostics fixes and improvements.
  
     * Dave Love for his ongoing work with the Fortran front end and
--- 43109,43115 ----
  
     * Weiwen Liu for testing and various bug fixes.
  
!    * Manuel Lo'pez-Iba'n~ez for improving '-Wconversion' and many other
       diagnostics fixes and improvements.
  
     * Dave Love for his ongoing work with the Fortran front end and
*************** alphabetical order.
*** 43593,43606 ****
     * Greg McGary for random fixes and (someday) bounded pointers.
  
     * Andrew MacLeod for his ongoing work in building a real EH system,
!      various code generation improvements, work on the global
!      optimizer, etc.
  
     * Vladimir Makarov for hacking some ugly i960 problems, PowerPC
!      hacking improvements to compile-time performance, overall
!      knowledge and direction in the area of instruction scheduling, and
!      design and implementation of the automaton based instruction
!      scheduler.
  
     * Bob Manson for his behind the scenes work on dejagnu.
  
--- 43126,43138 ----
     * Greg McGary for random fixes and (someday) bounded pointers.
  
     * Andrew MacLeod for his ongoing work in building a real EH system,
!      various code generation improvements, work on the global optimizer,
!      etc.
  
     * Vladimir Makarov for hacking some ugly i960 problems, PowerPC
!      hacking improvements to compile-time performance, overall knowledge
!      and direction in the area of instruction scheduling, and design and
!      implementation of the automaton based instruction scheduler.
  
     * Bob Manson for his behind the scenes work on dejagnu.
  
*************** alphabetical order.
*** 43639,43645 ****
  
     * Mark Mitchell for his direction via the steering committee,
       mountains of C++ work, load/store hoisting out of loops, alias
!      analysis improvements, ISO C `restrict' support, and serving as
       release manager from 2000 to 2011.
  
     * Alan Modra for various GNU/Linux bits and testing.
--- 43171,43177 ----
  
     * Mark Mitchell for his direction via the steering committee,
       mountains of C++ work, load/store hoisting out of loops, alias
!      analysis improvements, ISO C 'restrict' support, and serving as
       release manager from 2000 to 2011.
  
     * Alan Modra for various GNU/Linux bits and testing.
*************** alphabetical order.
*** 43649,43657 ****
  
     * Jason Molenda for major help in the care and feeding of all the
       services on the gcc.gnu.org (formerly egcs.cygnus.com)
!      machine--mail, web services, ftp services, etc etc.  Doing all
!      this work on scrap paper and the backs of envelopes would have
!      been... difficult.
  
     * Catherine Moore for fixing various ugly problems we have sent her
       way, including the haifa bug which was killing the Alpha & PowerPC
--- 43181,43189 ----
  
     * Jason Molenda for major help in the care and feeding of all the
       services on the gcc.gnu.org (formerly egcs.cygnus.com)
!      machine--mail, web services, ftp services, etc etc.  Doing all this
!      work on scrap paper and the backs of envelopes would have been...
!      difficult.
  
     * Catherine Moore for fixing various ugly problems we have sent her
       way, including the haifa bug which was killing the Alpha & PowerPC
*************** alphabetical order.
*** 43663,43670 ****
       initial IA-64 port.
  
     * Stephen Moshier contributed the floating point emulator that
!      assists in cross-compilation and permits support for floating
!      point numbers wider than 64 bits and for ISO C99 support.
  
     * Bill Moyer for his behind the scenes work on various issues.
  
--- 43195,43202 ----
       initial IA-64 port.
  
     * Stephen Moshier contributed the floating point emulator that
!      assists in cross-compilation and permits support for floating point
!      numbers wider than 64 bits and for ISO C99 support.
  
     * Bill Moyer for his behind the scenes work on various issues.
  
*************** alphabetical order.
*** 43687,43695 ****
     * NeXT, Inc. donated the front end that supports the Objective-C
       language.
  
!    * Hans-Peter Nilsson for the CRIS and MMIX ports, improvements to
!      the search engine setup, various documentation fixes and other
!      small fixes.
  
     * Geoff Noer for his work on getting cygwin native builds working.
  
--- 43219,43227 ----
     * NeXT, Inc. donated the front end that supports the Objective-C
       language.
  
!    * Hans-Peter Nilsson for the CRIS and MMIX ports, improvements to the
!      search engine setup, various documentation fixes and other small
!      fixes.
  
     * Geoff Noer for his work on getting cygwin native builds working.
  
*************** alphabetical order.
*** 43697,43704 ****
       tracking web pages, GIMPLE tuples, and assorted fixes.
  
     * David O'Brien for the FreeBSD/alpha, FreeBSD/AMD x86-64,
!      FreeBSD/ARM, FreeBSD/PowerPC, and FreeBSD/SPARC64 ports and
!      related infrastructure improvements.
  
     * Alexandre Oliva for various build infrastructure improvements,
       scripts and amazing testing work, including keeping libtool issues
--- 43229,43236 ----
       tracking web pages, GIMPLE tuples, and assorted fixes.
  
     * David O'Brien for the FreeBSD/alpha, FreeBSD/AMD x86-64,
!      FreeBSD/ARM, FreeBSD/PowerPC, and FreeBSD/SPARC64 ports and related
!      infrastructure improvements.
  
     * Alexandre Oliva for various build infrastructure improvements,
       scripts and amazing testing work, including keeping libtool issues
*************** alphabetical order.
*** 43710,43717 ****
  
     * Rainer Orth for random MIPS work, including improvements to GCC's
       o32 ABI support, improvements to dejagnu's MIPS support, Java
!      configuration clean-ups and porting work, and maintaining the
!      IRIX, Solaris 2, and Tru64 UNIX ports.
  
     * Hartmut Penner for work on the s390 port.
  
--- 43242,43249 ----
  
     * Rainer Orth for random MIPS work, including improvements to GCC's
       o32 ABI support, improvements to dejagnu's MIPS support, Java
!      configuration clean-ups and porting work, and maintaining the IRIX,
!      Solaris 2, and Tru64 UNIX ports.
  
     * Hartmut Penner for work on the s390 port.
  
*************** alphabetical order.
*** 43761,43767 ****
  
     * David Ronis inspired and encouraged Craig to rewrite the G77
       documentation in texinfo format by contributing a first pass at a
!      translation of the old `g77-0.5.16/f/DOC' file.
  
     * Ken Rose for fixes to GCC's delay slot filling code.
  
--- 43293,43299 ----
  
     * David Ronis inspired and encouraged Craig to rewrite the G77
       documentation in texinfo format by contributing a first pass at a
!      translation of the old 'g77-0.5.16/f/DOC' file.
  
     * Ken Rose for fixes to GCC's delay slot filling code.
  
*************** alphabetical order.
*** 43793,43800 ****
     * Tobias Schlu"ter for work on GNU Fortran.
  
     * Bernd Schmidt for various code generation improvements and major
!      work in the reload pass, serving as release manager for GCC
!      2.95.3, and work on the Blackfin and C6X ports.
  
     * Peter Schmid for constant testing of libstdc++--especially
       application testing, going above and beyond what was requested for
--- 43325,43332 ----
     * Tobias Schlu"ter for work on GNU Fortran.
  
     * Bernd Schmidt for various code generation improvements and major
!      work in the reload pass, serving as release manager for GCC 2.95.3,
!      and work on the Blackfin and C6X ports.
  
     * Peter Schmid for constant testing of libstdc++--especially
       application testing, going above and beyond what was requested for
*************** alphabetical order.
*** 43809,43815 ****
     * Dodji Seketeli for numerous C++ bug fixes and debug info
       improvements.
  
!    * Tim Shen for major work on `<regex>'.
  
     * Joel Sherrill for his direction via the steering committee, RTEMS
       contributions and RTEMS testing.
--- 43341,43347 ----
     * Dodji Seketeli for numerous C++ bug fixes and debug info
       improvements.
  
!    * Tim Shen for major work on '<regex>'.
  
     * Joel Sherrill for his direction via the steering committee, RTEMS
       contributions and RTEMS testing.
*************** alphabetical order.
*** 43824,43831 ****
       from the LWG (thereby keeping GCC in line with updates from the
       ISO).
  
!    * Franz Sirl for his ongoing work with making the PPC port stable
!      for GNU/Linux.
  
     * Andrey Slepuhin for assorted AIX hacking.
  
--- 43356,43363 ----
       from the LWG (thereby keeping GCC in line with updates from the
       ISO).
  
!    * Franz Sirl for his ongoing work with making the PPC port stable for
!      GNU/Linux.
  
     * Andrey Slepuhin for assorted AIX hacking.
  
*************** alphabetical order.
*** 43840,43851 ****
     * Randy Smith finished the Sun FPA support.
  
     * Ed Smith-Rowland for his continuous work on libstdc++-v3, special
!      functions, `<random>', and various improvements to C++11 features.
  
     * Scott Snyder for queue, iterator, istream, and string fixes and
       libstdc++ testsuite entries.  Also for providing the patch to G77
!      to add rudimentary support for `INTEGER*1', `INTEGER*2', and
!      `LOGICAL*1'.
  
     * Zdenek Sojka for running automated regression testing of GCC and
       reporting numerous bugs.
--- 43372,43383 ----
     * Randy Smith finished the Sun FPA support.
  
     * Ed Smith-Rowland for his continuous work on libstdc++-v3, special
!      functions, '<random>', and various improvements to C++11 features.
  
     * Scott Snyder for queue, iterator, istream, and string fixes and
       libstdc++ testsuite entries.  Also for providing the patch to G77
!      to add rudimentary support for 'INTEGER*1', 'INTEGER*2', and
!      'LOGICAL*1'.
  
     * Zdenek Sojka for running automated regression testing of GCC and
       reporting numerous bugs.
*************** alphabetical order.
*** 43869,43876 ****
  
     * John Stracke for his Java HTTP protocol fixes.
  
!    * Mike Stump for his Elxsi port, G++ contributions over the years
!      and more recently his vxworks contributions
  
     * Jeff Sturm for Java porting help, bug fixes, and encouragement.
  
--- 43401,43408 ----
  
     * John Stracke for his Java HTTP protocol fixes.
  
!    * Mike Stump for his Elxsi port, G++ contributions over the years and
!      more recently his vxworks contributions
  
     * Jeff Sturm for Java porting help, bug fixes, and encouragement.
  
*************** alphabetical order.
*** 43924,43931 ****
     * Jonathan Wakely for contributing libstdc++ Doxygen notes and XHTML
       guidance.
  
!    * Dean Wakerley for converting the install documentation from HTML
!      to texinfo in time for GCC 3.0.
  
     * Krister Walfridsson for random bug fixes.
  
--- 43456,43463 ----
     * Jonathan Wakely for contributing libstdc++ Doxygen notes and XHTML
       guidance.
  
!    * Dean Wakerley for converting the install documentation from HTML to
!      texinfo in time for GCC 3.0.
  
     * Krister Walfridsson for random bug fixes.
  
*************** alphabetical order.
*** 43933,43940 ****
  
     * Stephen M. Webb for time and effort on making libstdc++ shadow
       files work with the tricky Solaris 8+ headers, and for pushing the
!      build-time header tree. Also, for starting and driving the
!      `<regex>' effort.
  
     * John Wehle for various improvements for the x86 code generator,
       related infrastructure improvements to help x86 code generation,
--- 43465,43472 ----
  
     * Stephen M. Webb for time and effort on making libstdc++ shadow
       files work with the tricky Solaris 8+ headers, and for pushing the
!      build-time header tree.  Also, for starting and driving the
!      '<regex>' effort.
  
     * John Wehle for various improvements for the x86 code generator,
       related infrastructure improvements to help x86 code generation,
*************** alphabetical order.
*** 43956,43963 ****
     * Bob Wilson from Tensilica, Inc. for the Xtensa port.
  
     * Jim Wilson for his direction via the steering committee, tackling
!      hard problems in various places that nobody else wanted to work
!      on, strength reduction and other loop optimizations.
  
     * Paul Woegerer and Tal Agmon for the CRX port.
  
--- 43488,43495 ----
     * Bob Wilson from Tensilica, Inc. for the Xtensa port.
  
     * Jim Wilson for his direction via the steering committee, tackling
!      hard problems in various places that nobody else wanted to work on,
!      strength reduction and other loop optimizations.
  
     * Paul Woegerer and Tal Agmon for the CRX port.
  
*************** alphabetical order.
*** 43980,43986 ****
  
     * Gilles Zunino for help porting Java to Irix.
  
- 
   The following people are recognized for their contributions to GNAT,
  the Ada front end of GCC:
     * Bernard Banner
--- 43512,43517 ----
*************** the Ada front end of GCC:
*** 44077,44178 ****
  
     * Samuel Tardieu
  
- 
   The following people are recognized for their contributions of new
  features, bug reports, testing and integration of classpath/libgcj for
  GCC version 4.1:
!    * Lillian Angel for `JTree' implementation and lots Free Swing
       additions and bug fixes.
  
!    * Wolfgang Baer for `GapContent' bug fixes.
  
!    * Anthony Balkissoon for `JList', Free Swing 1.5 updates and mouse
!      event fixes, lots of Free Swing work including `JTable' editing.
  
     * Stuart Ballard for RMI constant fixes.
  
!    * Goffredo Baroncelli for `HTTPURLConnection' fixes.
  
!    * Gary Benson for `MessageFormat' fixes.
  
!    * Daniel Bonniot for `Serialization' fixes.
  
!    * Chris Burdess for lots of gnu.xml and http protocol fixes, `StAX'
!      and `DOM xml:id' support.
  
!    * Ka-Hing Cheung for `TreePath' and `TreeSelection' fixes.
  
     * Archie Cobbs for build fixes, VM interface updates,
!      `URLClassLoader' updates.
  
     * Kelley Cook for build fixes.
  
!    * Martin Cordova for Suggestions for better `SocketTimeoutException'.
  
!    * David Daney for `BitSet' bug fixes, `HttpURLConnection' rewrite
!      and improvements.
  
     * Thomas Fitzsimmons for lots of upgrades to the gtk+ AWT and Cairo
!      2D support. Lots of imageio framework additions, lots of AWT and
       Free Swing bug fixes.
  
!    * Jeroen Frijters for `ClassLoader' and nio cleanups, serialization
!      fixes, better `Proxy' support, bug fixes and IKVM integration.
  
!    * Santiago Gala for `AccessControlContext' fixes.
  
!    * Nicolas Geoffray for `VMClassLoader' and `AccessController'
       improvements.
  
!    * David Gilbert for `basic' and `metal' icon and plaf support and
       lots of documenting, Lots of Free Swing and metal theme additions.
!      `MetalIconFactory' implementation.
  
!    * Anthony Green for `MIDI' framework, `ALSA' and `DSSI' providers.
  
!    * Andrew Haley for `Serialization' and `URLClassLoader' fixes, gcj
       build speedups.
  
!    * Kim Ho for `JFileChooser' implementation.
  
!    * Andrew John Hughes for `Locale' and net fixes, URI RFC2986
!      updates, `Serialization' fixes, `Properties' XML support and
!      generic branch work, VMIntegration guide update.
  
!    * Bastiaan Huisman for `TimeZone' bug fixing.
  
     * Andreas Jaeger for mprec updates.
  
!    * Paul Jenner for better `-Werror' support.
  
!    * Ito Kazumitsu for `NetworkInterface' implementation and updates.
  
!    * Roman Kennke for `BoxLayout', `GrayFilter' and `SplitPane', plus
!      bug fixes all over. Lots of Free Swing work including styled text.
  
!    * Simon Kitching for `String' cleanups and optimization suggestions.
  
!    * Michael Koch for configuration fixes, `Locale' updates, bug and
       build fixes.
  
     * Guilhem Lavaux for configuration, thread and channel fixes and
!      Kaffe integration. JCL native `Pointer' updates. Logger bug fixes.
  
     * David Lichteblau for JCL support library global/local reference
       cleanups.
  
     * Aaron Luchko for JDWP updates and documentation fixes.
  
!    * Ziga Mahkovec for `Graphics2D' upgraded to Cairo 0.5 and new regex
       features.
  
!    * Sven de Marothy for BMP imageio support, CSS and `TextLayout'
!      fixes. `GtkImage' rewrite, 2D, awt, free swing and date/time fixes
       and implementing the Qt4 peers.
  
!    * Casey Marshall for crypto algorithm fixes, `FileChannel' lock,
!      `SystemLogger' and `FileHandler' rotate implementations, NIO
!      `FileChannel.map' support, security and policy updates.
  
     * Bryce McKinlay for RMI work.
  
--- 43608,43709 ----
  
     * Samuel Tardieu
  
   The following people are recognized for their contributions of new
  features, bug reports, testing and integration of classpath/libgcj for
  GCC version 4.1:
!    * Lillian Angel for 'JTree' implementation and lots Free Swing
       additions and bug fixes.
  
!    * Wolfgang Baer for 'GapContent' bug fixes.
  
!    * Anthony Balkissoon for 'JList', Free Swing 1.5 updates and mouse
!      event fixes, lots of Free Swing work including 'JTable' editing.
  
     * Stuart Ballard for RMI constant fixes.
  
!    * Goffredo Baroncelli for 'HTTPURLConnection' fixes.
  
!    * Gary Benson for 'MessageFormat' fixes.
  
!    * Daniel Bonniot for 'Serialization' fixes.
  
!    * Chris Burdess for lots of gnu.xml and http protocol fixes, 'StAX'
!      and 'DOM xml:id' support.
  
!    * Ka-Hing Cheung for 'TreePath' and 'TreeSelection' fixes.
  
     * Archie Cobbs for build fixes, VM interface updates,
!      'URLClassLoader' updates.
  
     * Kelley Cook for build fixes.
  
!    * Martin Cordova for Suggestions for better 'SocketTimeoutException'.
  
!    * David Daney for 'BitSet' bug fixes, 'HttpURLConnection' rewrite and
!      improvements.
  
     * Thomas Fitzsimmons for lots of upgrades to the gtk+ AWT and Cairo
!      2D support.  Lots of imageio framework additions, lots of AWT and
       Free Swing bug fixes.
  
!    * Jeroen Frijters for 'ClassLoader' and nio cleanups, serialization
!      fixes, better 'Proxy' support, bug fixes and IKVM integration.
  
!    * Santiago Gala for 'AccessControlContext' fixes.
  
!    * Nicolas Geoffray for 'VMClassLoader' and 'AccessController'
       improvements.
  
!    * David Gilbert for 'basic' and 'metal' icon and plaf support and
       lots of documenting, Lots of Free Swing and metal theme additions.
!      'MetalIconFactory' implementation.
  
!    * Anthony Green for 'MIDI' framework, 'ALSA' and 'DSSI' providers.
  
!    * Andrew Haley for 'Serialization' and 'URLClassLoader' fixes, gcj
       build speedups.
  
!    * Kim Ho for 'JFileChooser' implementation.
  
!    * Andrew John Hughes for 'Locale' and net fixes, URI RFC2986 updates,
!      'Serialization' fixes, 'Properties' XML support and generic branch
!      work, VMIntegration guide update.
  
!    * Bastiaan Huisman for 'TimeZone' bug fixing.
  
     * Andreas Jaeger for mprec updates.
  
!    * Paul Jenner for better '-Werror' support.
  
!    * Ito Kazumitsu for 'NetworkInterface' implementation and updates.
  
!    * Roman Kennke for 'BoxLayout', 'GrayFilter' and 'SplitPane', plus
!      bug fixes all over.  Lots of Free Swing work including styled text.
  
!    * Simon Kitching for 'String' cleanups and optimization suggestions.
  
!    * Michael Koch for configuration fixes, 'Locale' updates, bug and
       build fixes.
  
     * Guilhem Lavaux for configuration, thread and channel fixes and
!      Kaffe integration.  JCL native 'Pointer' updates.  Logger bug
!      fixes.
  
     * David Lichteblau for JCL support library global/local reference
       cleanups.
  
     * Aaron Luchko for JDWP updates and documentation fixes.
  
!    * Ziga Mahkovec for 'Graphics2D' upgraded to Cairo 0.5 and new regex
       features.
  
!    * Sven de Marothy for BMP imageio support, CSS and 'TextLayout'
!      fixes.  'GtkImage' rewrite, 2D, awt, free swing and date/time fixes
       and implementing the Qt4 peers.
  
!    * Casey Marshall for crypto algorithm fixes, 'FileChannel' lock,
!      'SystemLogger' and 'FileHandler' rotate implementations, NIO
!      'FileChannel.map' support, security and policy updates.
  
     * Bryce McKinlay for RMI work.
  
*************** GCC version 4.1:
*** 44183,44228 ****
  
     * Rainer Orth for build fixes.
  
!    * Andrew Overholt for `File' locking fixes.
  
!    * Ingo Proetel for `Image', `Logger' and `URLClassLoader' updates.
  
!    * Olga Rodimina for `MenuSelectionManager' implementation.
  
!    * Jan Roehrich for `BasicTreeUI' and `JTree' fixes.
  
     * Julian Scheid for documentation updates and gjdoc support.
  
     * Christian Schlichtherle for zip fixes and cleanups.
  
     * Robert Schuster for documentation updates and beans fixes,
!      `TreeNode' enumerations and `ActionCommand' and various fixes, XML
       and URL, AWT and Free Swing bug fixes.
  
     * Keith Seitz for lots of JDWP work.
  
     * Christian Thalinger for 64-bit cleanups, Configuration and VM
!      interface fixes and `CACAO' integration, `fdlibm' updates.
  
!    * Gael Thomas for `VMClassLoader' boot packages support suggestions.
  
!    * Andreas Tobler for Darwin and Solaris testing and fixing, `Qt4'
!      support for Darwin/OS X, `Graphics2D' support, `gtk+' updates.
  
!    * Dalibor Topic for better `DEBUG' support, build cleanups and Kaffe
!      integration. `Qt4' build infrastructure, `SHA1PRNG' and
!      `GdkPixbugDecoder' updates.
  
     * Tom Tromey for Eclipse integration, generics work, lots of bug
       fixes and gcj integration including coordinating The Big Merge.
  
     * Mark Wielaard for bug fixes, packaging and release management,
!      `Clipboard' implementation, system call interrupts and network
!      timeouts and `GdkPixpufDecoder' fixes.
! 
  
!  In addition to the above, all of which also contributed time and
! energy in testing GCC, we would like to thank the following for their
  contributions to testing:
  
     * Michael Abd-El-Malek
--- 43714,43758 ----
  
     * Rainer Orth for build fixes.
  
!    * Andrew Overholt for 'File' locking fixes.
  
!    * Ingo Proetel for 'Image', 'Logger' and 'URLClassLoader' updates.
  
!    * Olga Rodimina for 'MenuSelectionManager' implementation.
  
!    * Jan Roehrich for 'BasicTreeUI' and 'JTree' fixes.
  
     * Julian Scheid for documentation updates and gjdoc support.
  
     * Christian Schlichtherle for zip fixes and cleanups.
  
     * Robert Schuster for documentation updates and beans fixes,
!      'TreeNode' enumerations and 'ActionCommand' and various fixes, XML
       and URL, AWT and Free Swing bug fixes.
  
     * Keith Seitz for lots of JDWP work.
  
     * Christian Thalinger for 64-bit cleanups, Configuration and VM
!      interface fixes and 'CACAO' integration, 'fdlibm' updates.
  
!    * Gael Thomas for 'VMClassLoader' boot packages support suggestions.
  
!    * Andreas Tobler for Darwin and Solaris testing and fixing, 'Qt4'
!      support for Darwin/OS X, 'Graphics2D' support, 'gtk+' updates.
  
!    * Dalibor Topic for better 'DEBUG' support, build cleanups and Kaffe
!      integration.  'Qt4' build infrastructure, 'SHA1PRNG' and
!      'GdkPixbugDecoder' updates.
  
     * Tom Tromey for Eclipse integration, generics work, lots of bug
       fixes and gcj integration including coordinating The Big Merge.
  
     * Mark Wielaard for bug fixes, packaging and release management,
!      'Clipboard' implementation, system call interrupts and network
!      timeouts and 'GdkPixpufDecoder' fixes.
  
!  In addition to the above, all of which also contributed time and energy
! in testing GCC, we would like to thank the following for their
  contributions to testing:
  
     * Michael Abd-El-Malek
*************** File: gccint.info,  Node: Option Index,
*** 44391,44399 ****
  Option Index
  ************
  
! GCC's command line options are indexed here without any initial `-' or
! `--'.  Where an option has both positive and negative forms (such as
! `-fOPTION' and `-fno-OPTION'), relevant entries in the manual are
  indexed under the most appropriate form; it may sometimes be useful to
  look up both forms.
  
--- 43921,43929 ----
  Option Index
  ************
  
! GCC's command line options are indexed here without any initial '-' or
! '--'.  Where an option has both positive and negative forms (such as
! '-fOPTION' and '-fno-OPTION'), relevant entries in the manual are
  indexed under the most appropriate form; it may sometimes be useful to
  look up both forms.
  
*************** Concept Index
*** 44425,44468 ****
  * % in GTY option:                       GTY Options.        (line   18)
  * % in template:                         Output Template.    (line    6)
  * & in constraint:                       Modifiers.          (line   25)
! * (:                                     GIMPLE API.         (line   31)
  * (nil):                                 RTL Objects.        (line   73)
  * * in constraint:                       Modifiers.          (line   83)
  * * in template:                         Output Statement.   (line   29)
! * *gimple_build_asm_vec:                 GIMPLE_ASM.         (line    9)
! * *gimple_build_assign:                  GIMPLE_ASSIGN.      (line    7)
! * *gimple_build_bind:                    GIMPLE_BIND.        (line    8)
! * *gimple_build_call:                    GIMPLE_CALL.        (line    8)
! * *gimple_build_call_from_tree:          GIMPLE_CALL.        (line   16)
! * *gimple_build_call_vec:                GIMPLE_CALL.        (line   25)
! * *gimple_build_catch:                   GIMPLE_CATCH.       (line    8)
! * *gimple_build_cond:                    GIMPLE_COND.        (line    8)
! * *gimple_build_cond_from_tree:          GIMPLE_COND.        (line   16)
! * *gimple_build_debug_bind:              GIMPLE_DEBUG.       (line    8)
! * *gimple_build_eh_filter:               GIMPLE_EH_FILTER.   (line    8)
! * *gimple_build_goto:                    GIMPLE_GOTO.        (line    7)
! * *gimple_build_label:                   GIMPLE_LABEL.       (line    7)
  * *gimple_build_omp_atomic_load:         GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line    8)
  * *gimple_build_omp_atomic_store:        GIMPLE_OMP_ATOMIC_STORE.
!                                                              (line    8)
  * *gimple_build_omp_continue:            GIMPLE_OMP_CONTINUE.
!                                                              (line    8)
  * *gimple_build_omp_critical:            GIMPLE_OMP_CRITICAL.
!                                                              (line    8)
! * *gimple_build_omp_for:                 GIMPLE_OMP_FOR.     (line    9)
  * *gimple_build_omp_parallel:            GIMPLE_OMP_PARALLEL.
!                                                              (line    8)
  * *gimple_build_omp_sections:            GIMPLE_OMP_SECTIONS.
!                                                              (line    8)
! * *gimple_build_omp_single:              GIMPLE_OMP_SINGLE.  (line    8)
! * *gimple_build_resx:                    GIMPLE_RESX.        (line    7)
! * *gimple_build_return:                  GIMPLE_RETURN.      (line    7)
! * *gimple_build_switch:                  GIMPLE_SWITCH.      (line    8)
! * *gimple_build_try:                     GIMPLE_TRY.         (line    8)
  * + in constraint:                       Modifiers.          (line   12)
  * -fsection-anchors <1>:                 Anchored Addresses. (line    6)
- * -fsection-anchors:                     Special Accessors.  (line  120)
  * /c in RTL dump:                        Flags.              (line  221)
  * /f in RTL dump:                        Flags.              (line  229)
  * /i in RTL dump:                        Flags.              (line  274)
--- 43955,44001 ----
  * % in GTY option:                       GTY Options.        (line   18)
  * % in template:                         Output Template.    (line    6)
  * & in constraint:                       Modifiers.          (line   25)
! * (gimple_stmt_iterator:                 GIMPLE API.         (line   30)
  * (nil):                                 RTL Objects.        (line   73)
  * * in constraint:                       Modifiers.          (line   83)
  * * in template:                         Output Statement.   (line   29)
! * *gimple_build_asm_vec:                 GIMPLE_ASM.         (line    6)
! * *gimple_build_assign:                  GIMPLE_ASSIGN.      (line    6)
! * *gimple_build_assign <1>:              GIMPLE_ASSIGN.      (line   18)
! * *gimple_build_assign <2>:              GIMPLE_ASSIGN.      (line   29)
! * *gimple_build_assign <3>:              GIMPLE_ASSIGN.      (line   35)
! * *gimple_build_bind:                    GIMPLE_BIND.        (line    6)
! * *gimple_build_call:                    GIMPLE_CALL.        (line    6)
! * *gimple_build_call_from_tree:          GIMPLE_CALL.        (line   15)
! * *gimple_build_call_vec:                GIMPLE_CALL.        (line   23)
! * *gimple_build_catch:                   GIMPLE_CATCH.       (line    6)
! * *gimple_build_cond:                    GIMPLE_COND.        (line    6)
! * *gimple_build_cond_from_tree:          GIMPLE_COND.        (line   14)
! * *gimple_build_debug_bind:              GIMPLE_DEBUG.       (line    6)
! * *gimple_build_eh_filter:               GIMPLE_EH_FILTER.   (line    6)
! * *gimple_build_goto:                    GIMPLE_GOTO.        (line    6)
! * *gimple_build_label:                   GIMPLE_LABEL.       (line    6)
  * *gimple_build_omp_atomic_load:         GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line    6)
  * *gimple_build_omp_atomic_store:        GIMPLE_OMP_ATOMIC_STORE.
!                                                              (line    6)
  * *gimple_build_omp_continue:            GIMPLE_OMP_CONTINUE.
!                                                              (line    6)
  * *gimple_build_omp_critical:            GIMPLE_OMP_CRITICAL.
!                                                              (line    6)
! * *gimple_build_omp_for:                 GIMPLE_OMP_FOR.     (line    6)
  * *gimple_build_omp_parallel:            GIMPLE_OMP_PARALLEL.
!                                                              (line    6)
  * *gimple_build_omp_sections:            GIMPLE_OMP_SECTIONS.
!                                                              (line    6)
! * *gimple_build_omp_single:              GIMPLE_OMP_SINGLE.  (line    6)
! * *gimple_build_resx:                    GIMPLE_RESX.        (line    6)
! * *gimple_build_return:                  GIMPLE_RETURN.      (line    6)
! * *gimple_build_switch:                  GIMPLE_SWITCH.      (line    6)
! * *gimple_build_try:                     GIMPLE_TRY.         (line    6)
  * + in constraint:                       Modifiers.          (line   12)
+ * -fsection-anchors:                     Special Accessors.  (line  117)
  * -fsection-anchors <1>:                 Anchored Addresses. (line    6)
  * /c in RTL dump:                        Flags.              (line  221)
  * /f in RTL dump:                        Flags.              (line  229)
  * /i in RTL dump:                        Flags.              (line  274)
*************** Concept Index
*** 44470,47999 ****
  * /s in RTL dump:                        Flags.              (line  245)
  * /u in RTL dump:                        Flags.              (line  296)
  * /v in RTL dump:                        Flags.              (line  328)
! * 0 in constraint:                       Simple Constraints. (line  130)
! * < in constraint:                       Simple Constraints. (line   48)
  * = in constraint:                       Modifiers.          (line    8)
! * > in constraint:                       Simple Constraints. (line   61)
  * ? in constraint:                       Multi-Alternative.  (line   42)
  * \:                                     Output Template.    (line   46)
  * ^ in constraint:                       Multi-Alternative.  (line   53)
  * __absvdi2:                             Integer library routines.
-                                                              (line  107)
- * __absvsi2:                             Integer library routines.
                                                               (line  106)
  * __addda3:                              Fixed-point fractional library routines.
!                                                              (line   45)
  * __adddf3:                              Soft float library routines.
!                                                              (line   23)
  * __adddq3:                              Fixed-point fractional library routines.
!                                                              (line   33)
  * __addha3:                              Fixed-point fractional library routines.
!                                                              (line   43)
  * __addhq3:                              Fixed-point fractional library routines.
!                                                              (line   30)
  * __addqq3:                              Fixed-point fractional library routines.
!                                                              (line   29)
  * __addsa3:                              Fixed-point fractional library routines.
!                                                              (line   44)
  * __addsf3:                              Soft float library routines.
!                                                              (line   22)
  * __addsq3:                              Fixed-point fractional library routines.
!                                                              (line   31)
  * __addta3:                              Fixed-point fractional library routines.
!                                                              (line   47)
  * __addtf3:                              Soft float library routines.
!                                                              (line   25)
  * __adduda3:                             Fixed-point fractional library routines.
!                                                              (line   53)
  * __addudq3:                             Fixed-point fractional library routines.
!                                                              (line   41)
  * __adduha3:                             Fixed-point fractional library routines.
!                                                              (line   49)
  * __adduhq3:                             Fixed-point fractional library routines.
!                                                              (line   37)
  * __adduqq3:                             Fixed-point fractional library routines.
!                                                              (line   35)
  * __addusa3:                             Fixed-point fractional library routines.
!                                                              (line   51)
  * __addusq3:                             Fixed-point fractional library routines.
!                                                              (line   39)
  * __adduta3:                             Fixed-point fractional library routines.
!                                                              (line   55)
  * __addvdi3:                             Integer library routines.
-                                                              (line  111)
- * __addvsi3:                             Integer library routines.
                                                               (line  110)
  * __addxf3:                              Soft float library routines.
!                                                              (line   27)
  * __ashlda3:                             Fixed-point fractional library routines.
!                                                              (line  351)
  * __ashldi3:                             Integer library routines.
!                                                              (line   14)
  * __ashldq3:                             Fixed-point fractional library routines.
!                                                              (line  340)
  * __ashlha3:                             Fixed-point fractional library routines.
!                                                              (line  349)
  * __ashlhq3:                             Fixed-point fractional library routines.
!                                                              (line  337)
  * __ashlqq3:                             Fixed-point fractional library routines.
!                                                              (line  336)
  * __ashlsa3:                             Fixed-point fractional library routines.
!                                                              (line  350)
  * __ashlsi3:                             Integer library routines.
!                                                              (line   13)
  * __ashlsq3:                             Fixed-point fractional library routines.
!                                                              (line  338)
  * __ashlta3:                             Fixed-point fractional library routines.
!                                                              (line  353)
  * __ashlti3:                             Integer library routines.
!                                                              (line   15)
  * __ashluda3:                            Fixed-point fractional library routines.
!                                                              (line  359)
  * __ashludq3:                            Fixed-point fractional library routines.
!                                                              (line  348)
  * __ashluha3:                            Fixed-point fractional library routines.
!                                                              (line  355)
  * __ashluhq3:                            Fixed-point fractional library routines.
!                                                              (line  344)
  * __ashluqq3:                            Fixed-point fractional library routines.
!                                                              (line  342)
  * __ashlusa3:                            Fixed-point fractional library routines.
!                                                              (line  357)
  * __ashlusq3:                            Fixed-point fractional library routines.
!                                                              (line  346)
  * __ashluta3:                            Fixed-point fractional library routines.
!                                                              (line  361)
  * __ashrda3:                             Fixed-point fractional library routines.
!                                                              (line  371)
  * __ashrdi3:                             Integer library routines.
!                                                              (line   19)
  * __ashrdq3:                             Fixed-point fractional library routines.
!                                                              (line  368)
  * __ashrha3:                             Fixed-point fractional library routines.
!                                                              (line  369)
  * __ashrhq3:                             Fixed-point fractional library routines.
!                                                              (line  365)
  * __ashrqq3:                             Fixed-point fractional library routines.
!                                                              (line  364)
  * __ashrsa3:                             Fixed-point fractional library routines.
!                                                              (line  370)
  * __ashrsi3:                             Integer library routines.
!                                                              (line   18)
  * __ashrsq3:                             Fixed-point fractional library routines.
-                                                              (line  366)
- * __ashrta3:                             Fixed-point fractional library routines.
                                                               (line  373)
  * __ashrti3:                             Integer library routines.
!                                                              (line   20)
  * __bid_adddd3:                          Decimal float library routines.
!                                                              (line   25)
  * __bid_addsd3:                          Decimal float library routines.
!                                                              (line   21)
  * __bid_addtd3:                          Decimal float library routines.
!                                                              (line   29)
  * __bid_divdd3:                          Decimal float library routines.
!                                                              (line   68)
  * __bid_divsd3:                          Decimal float library routines.
!                                                              (line   64)
  * __bid_divtd3:                          Decimal float library routines.
!                                                              (line   72)
  * __bid_eqdd2:                           Decimal float library routines.
!                                                              (line  259)
  * __bid_eqsd2:                           Decimal float library routines.
!                                                              (line  257)
  * __bid_eqtd2:                           Decimal float library routines.
!                                                              (line  261)
  * __bid_extendddtd2:                     Decimal float library routines.
!                                                              (line   92)
  * __bid_extendddtf:                      Decimal float library routines.
!                                                              (line  140)
  * __bid_extendddxf:                      Decimal float library routines.
!                                                              (line  134)
  * __bid_extenddfdd:                      Decimal float library routines.
!                                                              (line  147)
  * __bid_extenddftd:                      Decimal float library routines.
!                                                              (line  107)
  * __bid_extendsddd2:                     Decimal float library routines.
!                                                              (line   88)
  * __bid_extendsddf:                      Decimal float library routines.
!                                                              (line  128)
  * __bid_extendsdtd2:                     Decimal float library routines.
!                                                              (line   90)
  * __bid_extendsdtf:                      Decimal float library routines.
!                                                              (line  138)
  * __bid_extendsdxf:                      Decimal float library routines.
!                                                              (line  132)
  * __bid_extendsfdd:                      Decimal float library routines.
!                                                              (line  103)
  * __bid_extendsfsd:                      Decimal float library routines.
!                                                              (line  145)
  * __bid_extendsftd:                      Decimal float library routines.
!                                                              (line  105)
  * __bid_extendtftd:                      Decimal float library routines.
!                                                              (line  149)
  * __bid_extendxftd:                      Decimal float library routines.
!                                                              (line  109)
  * __bid_fixdddi:                         Decimal float library routines.
!                                                              (line  170)
  * __bid_fixddsi:                         Decimal float library routines.
!                                                              (line  162)
  * __bid_fixsddi:                         Decimal float library routines.
!                                                              (line  168)
  * __bid_fixsdsi:                         Decimal float library routines.
!                                                              (line  160)
  * __bid_fixtddi:                         Decimal float library routines.
!                                                              (line  172)
  * __bid_fixtdsi:                         Decimal float library routines.
!                                                              (line  164)
  * __bid_fixunsdddi:                      Decimal float library routines.
!                                                              (line  187)
  * __bid_fixunsddsi:                      Decimal float library routines.
!                                                              (line  178)
  * __bid_fixunssddi:                      Decimal float library routines.
!                                                              (line  185)
  * __bid_fixunssdsi:                      Decimal float library routines.
!                                                              (line  176)
  * __bid_fixunstddi:                      Decimal float library routines.
!                                                              (line  189)
  * __bid_fixunstdsi:                      Decimal float library routines.
!                                                              (line  180)
  * __bid_floatdidd:                       Decimal float library routines.
!                                                              (line  205)
  * __bid_floatdisd:                       Decimal float library routines.
!                                                              (line  203)
  * __bid_floatditd:                       Decimal float library routines.
!                                                              (line  207)
  * __bid_floatsidd:                       Decimal float library routines.
!                                                              (line  196)
  * __bid_floatsisd:                       Decimal float library routines.
!                                                              (line  194)
  * __bid_floatsitd:                       Decimal float library routines.
!                                                              (line  198)
  * __bid_floatunsdidd:                    Decimal float library routines.
!                                                              (line  223)
  * __bid_floatunsdisd:                    Decimal float library routines.
!                                                              (line  221)
  * __bid_floatunsditd:                    Decimal float library routines.
!                                                              (line  225)
  * __bid_floatunssidd:                    Decimal float library routines.
!                                                              (line  214)
  * __bid_floatunssisd:                    Decimal float library routines.
!                                                              (line  212)
  * __bid_floatunssitd:                    Decimal float library routines.
!                                                              (line  216)
  * __bid_gedd2:                           Decimal float library routines.
!                                                              (line  277)
  * __bid_gesd2:                           Decimal float library routines.
!                                                              (line  275)
  * __bid_getd2:                           Decimal float library routines.
!                                                              (line  279)
  * __bid_gtdd2:                           Decimal float library routines.
!                                                              (line  304)
  * __bid_gtsd2:                           Decimal float library routines.
!                                                              (line  302)
  * __bid_gttd2:                           Decimal float library routines.
!                                                              (line  306)
  * __bid_ledd2:                           Decimal float library routines.
!                                                              (line  295)
  * __bid_lesd2:                           Decimal float library routines.
!                                                              (line  293)
  * __bid_letd2:                           Decimal float library routines.
!                                                              (line  297)
  * __bid_ltdd2:                           Decimal float library routines.
!                                                              (line  286)
  * __bid_ltsd2:                           Decimal float library routines.
!                                                              (line  284)
  * __bid_lttd2:                           Decimal float library routines.
!                                                              (line  288)
  * __bid_muldd3:                          Decimal float library routines.
!                                                              (line   54)
  * __bid_mulsd3:                          Decimal float library routines.
!                                                              (line   50)
  * __bid_multd3:                          Decimal float library routines.
!                                                              (line   58)
  * __bid_nedd2:                           Decimal float library routines.
!                                                              (line  268)
  * __bid_negdd2:                          Decimal float library routines.
!                                                              (line   78)
  * __bid_negsd2:                          Decimal float library routines.
!                                                              (line   76)
  * __bid_negtd2:                          Decimal float library routines.
!                                                              (line   80)
  * __bid_nesd2:                           Decimal float library routines.
!                                                              (line  266)
  * __bid_netd2:                           Decimal float library routines.
!                                                              (line  270)
  * __bid_subdd3:                          Decimal float library routines.
!                                                              (line   39)
  * __bid_subsd3:                          Decimal float library routines.
!                                                              (line   35)
  * __bid_subtd3:                          Decimal float library routines.
!                                                              (line   43)
  * __bid_truncdddf:                       Decimal float library routines.
!                                                              (line  153)
  * __bid_truncddsd2:                      Decimal float library routines.
!                                                              (line   94)
  * __bid_truncddsf:                       Decimal float library routines.
!                                                              (line  124)
  * __bid_truncdfsd:                       Decimal float library routines.
!                                                              (line  111)
  * __bid_truncsdsf:                       Decimal float library routines.
!                                                              (line  151)
  * __bid_trunctddd2:                      Decimal float library routines.
!                                                              (line   98)
  * __bid_trunctddf:                       Decimal float library routines.
!                                                              (line  130)
  * __bid_trunctdsd2:                      Decimal float library routines.
!                                                              (line   96)
  * __bid_trunctdsf:                       Decimal float library routines.
!                                                              (line  126)
  * __bid_trunctdtf:                       Decimal float library routines.
!                                                              (line  155)
  * __bid_trunctdxf:                       Decimal float library routines.
!                                                              (line  136)
  * __bid_trunctfdd:                       Decimal float library routines.
!                                                              (line  119)
  * __bid_trunctfsd:                       Decimal float library routines.
!                                                              (line  115)
  * __bid_truncxfdd:                       Decimal float library routines.
!                                                              (line  117)
  * __bid_truncxfsd:                       Decimal float library routines.
!                                                              (line  113)
  * __bid_unorddd2:                        Decimal float library routines.
!                                                              (line  235)
  * __bid_unordsd2:                        Decimal float library routines.
!                                                              (line  233)
  * __bid_unordtd2:                        Decimal float library routines.
!                                                              (line  237)
  * __bswapdi2:                            Integer library routines.
-                                                              (line  162)
- * __bswapsi2:                            Integer library routines.
                                                               (line  161)
! * __builtin_classify_type:               Varargs.            (line   51)
! * __builtin_next_arg:                    Varargs.            (line   42)
! * __builtin_saveregs:                    Varargs.            (line   24)
! * __chkp_bndcl:                          Misc.               (line  652)
! * __chkp_bndcu:                          Misc.               (line  658)
! * __chkp_bndldx:                         Misc.               (line  646)
! * __chkp_bndmk:                          Misc.               (line  633)
! * __chkp_bndret:                         Misc.               (line  663)
! * __chkp_bndstx:                         Misc.               (line  640)
! * __chkp_intersect:                      Misc.               (line  670)
! * __chkp_narrow:                         Misc.               (line  675)
! * __chkp_sizeof:                         Misc.               (line  680)
  * __clear_cache:                         Miscellaneous routines.
!                                                              (line   10)
  * __clzdi2:                              Integer library routines.
-                                                              (line  131)
- * __clzsi2:                              Integer library routines.
                                                               (line  130)
  * __clzti2:                              Integer library routines.
!                                                              (line  132)
  * __cmpda2:                              Fixed-point fractional library routines.
!                                                              (line  451)
  * __cmpdf2:                              Soft float library routines.
!                                                              (line  164)
  * __cmpdi2:                              Integer library routines.
!                                                              (line   87)
  * __cmpdq2:                              Fixed-point fractional library routines.
!                                                              (line  441)
  * __cmpha2:                              Fixed-point fractional library routines.
!                                                              (line  449)
  * __cmphq2:                              Fixed-point fractional library routines.
!                                                              (line  438)
  * __cmpqq2:                              Fixed-point fractional library routines.
!                                                              (line  437)
  * __cmpsa2:                              Fixed-point fractional library routines.
!                                                              (line  450)
  * __cmpsf2:                              Soft float library routines.
!                                                              (line  163)
  * __cmpsq2:                              Fixed-point fractional library routines.
!                                                              (line  439)
  * __cmpta2:                              Fixed-point fractional library routines.
!                                                              (line  453)
  * __cmptf2:                              Soft float library routines.
!                                                              (line  165)
  * __cmpti2:                              Integer library routines.
!                                                              (line   88)
  * __cmpuda2:                             Fixed-point fractional library routines.
!                                                              (line  458)
  * __cmpudq2:                             Fixed-point fractional library routines.
!                                                              (line  448)
  * __cmpuha2:                             Fixed-point fractional library routines.
!                                                              (line  455)
  * __cmpuhq2:                             Fixed-point fractional library routines.
!                                                              (line  444)
  * __cmpuqq2:                             Fixed-point fractional library routines.
!                                                              (line  443)
  * __cmpusa2:                             Fixed-point fractional library routines.
!                                                              (line  456)
  * __cmpusq2:                             Fixed-point fractional library routines.
!                                                              (line  446)
  * __cmputa2:                             Fixed-point fractional library routines.
!                                                              (line  460)
  * __CTOR_LIST__:                         Initialization.     (line   25)
  * __ctzdi2:                              Integer library routines.
-                                                              (line  138)
- * __ctzsi2:                              Integer library routines.
                                                               (line  137)
  * __ctzti2:                              Integer library routines.
!                                                              (line  139)
  * __divda3:                              Fixed-point fractional library routines.
!                                                              (line  227)
  * __divdc3:                              Soft float library routines.
!                                                              (line  252)
  * __divdf3:                              Soft float library routines.
!                                                              (line   48)
  * __divdi3:                              Integer library routines.
!                                                              (line   25)
  * __divdq3:                              Fixed-point fractional library routines.
!                                                              (line  223)
  * __divha3:                              Fixed-point fractional library routines.
!                                                              (line  225)
  * __divhq3:                              Fixed-point fractional library routines.
!                                                              (line  220)
  * __divqq3:                              Fixed-point fractional library routines.
!                                                              (line  219)
  * __divsa3:                              Fixed-point fractional library routines.
!                                                              (line  226)
  * __divsc3:                              Soft float library routines.
!                                                              (line  250)
  * __divsf3:                              Soft float library routines.
!                                                              (line   47)
  * __divsi3:                              Integer library routines.
!                                                              (line   24)
  * __divsq3:                              Fixed-point fractional library routines.
!                                                              (line  221)
  * __divta3:                              Fixed-point fractional library routines.
!                                                              (line  229)
  * __divtc3:                              Soft float library routines.
!                                                              (line  254)
  * __divtf3:                              Soft float library routines.
!                                                              (line   50)
  * __divti3:                              Integer library routines.
!                                                              (line   26)
  * __divxc3:                              Soft float library routines.
!                                                              (line  256)
  * __divxf3:                              Soft float library routines.
!                                                              (line   52)
  * __dpd_adddd3:                          Decimal float library routines.
!                                                              (line   23)
  * __dpd_addsd3:                          Decimal float library routines.
!                                                              (line   19)
  * __dpd_addtd3:                          Decimal float library routines.
!                                                              (line   27)
  * __dpd_divdd3:                          Decimal float library routines.
!                                                              (line   66)
  * __dpd_divsd3:                          Decimal float library routines.
!                                                              (line   62)
  * __dpd_divtd3:                          Decimal float library routines.
!                                                              (line   70)
  * __dpd_eqdd2:                           Decimal float library routines.
!                                                              (line  258)
  * __dpd_eqsd2:                           Decimal float library routines.
!                                                              (line  256)
  * __dpd_eqtd2:                           Decimal float library routines.
!                                                              (line  260)
  * __dpd_extendddtd2:                     Decimal float library routines.
!                                                              (line   91)
  * __dpd_extendddtf:                      Decimal float library routines.
!                                                              (line  139)
  * __dpd_extendddxf:                      Decimal float library routines.
!                                                              (line  133)
  * __dpd_extenddfdd:                      Decimal float library routines.
!                                                              (line  146)
  * __dpd_extenddftd:                      Decimal float library routines.
!                                                              (line  106)
  * __dpd_extendsddd2:                     Decimal float library routines.
!                                                              (line   87)
  * __dpd_extendsddf:                      Decimal float library routines.
!                                                              (line  127)
  * __dpd_extendsdtd2:                     Decimal float library routines.
!                                                              (line   89)
  * __dpd_extendsdtf:                      Decimal float library routines.
!                                                              (line  137)
  * __dpd_extendsdxf:                      Decimal float library routines.
!                                                              (line  131)
  * __dpd_extendsfdd:                      Decimal float library routines.
!                                                              (line  102)
  * __dpd_extendsfsd:                      Decimal float library routines.
!                                                              (line  144)
  * __dpd_extendsftd:                      Decimal float library routines.
!                                                              (line  104)
  * __dpd_extendtftd:                      Decimal float library routines.
!                                                              (line  148)
  * __dpd_extendxftd:                      Decimal float library routines.
!                                                              (line  108)
  * __dpd_fixdddi:                         Decimal float library routines.
!                                                              (line  169)
  * __dpd_fixddsi:                         Decimal float library routines.
!                                                              (line  161)
  * __dpd_fixsddi:                         Decimal float library routines.
!                                                              (line  167)
  * __dpd_fixsdsi:                         Decimal float library routines.
!                                                              (line  159)
  * __dpd_fixtddi:                         Decimal float library routines.
!                                                              (line  171)
  * __dpd_fixtdsi:                         Decimal float library routines.
!                                                              (line  163)
  * __dpd_fixunsdddi:                      Decimal float library routines.
!                                                              (line  186)
  * __dpd_fixunsddsi:                      Decimal float library routines.
!                                                              (line  177)
  * __dpd_fixunssddi:                      Decimal float library routines.
!                                                              (line  184)
  * __dpd_fixunssdsi:                      Decimal float library routines.
!                                                              (line  175)
  * __dpd_fixunstddi:                      Decimal float library routines.
!                                                              (line  188)
  * __dpd_fixunstdsi:                      Decimal float library routines.
!                                                              (line  179)
  * __dpd_floatdidd:                       Decimal float library routines.
!                                                              (line  204)
  * __dpd_floatdisd:                       Decimal float library routines.
!                                                              (line  202)
  * __dpd_floatditd:                       Decimal float library routines.
!                                                              (line  206)
  * __dpd_floatsidd:                       Decimal float library routines.
!                                                              (line  195)
  * __dpd_floatsisd:                       Decimal float library routines.
!                                                              (line  193)
  * __dpd_floatsitd:                       Decimal float library routines.
!                                                              (line  197)
  * __dpd_floatunsdidd:                    Decimal float library routines.
!                                                              (line  222)
  * __dpd_floatunsdisd:                    Decimal float library routines.
!                                                              (line  220)
  * __dpd_floatunsditd:                    Decimal float library routines.
!                                                              (line  224)
  * __dpd_floatunssidd:                    Decimal float library routines.
!                                                              (line  213)
  * __dpd_floatunssisd:                    Decimal float library routines.
!                                                              (line  211)
  * __dpd_floatunssitd:                    Decimal float library routines.
!                                                              (line  215)
  * __dpd_gedd2:                           Decimal float library routines.
!                                                              (line  276)
  * __dpd_gesd2:                           Decimal float library routines.
!                                                              (line  274)
  * __dpd_getd2:                           Decimal float library routines.
!                                                              (line  278)
  * __dpd_gtdd2:                           Decimal float library routines.
!                                                              (line  303)
  * __dpd_gtsd2:                           Decimal float library routines.
!                                                              (line  301)
  * __dpd_gttd2:                           Decimal float library routines.
!                                                              (line  305)
  * __dpd_ledd2:                           Decimal float library routines.
!                                                              (line  294)
  * __dpd_lesd2:                           Decimal float library routines.
!                                                              (line  292)
  * __dpd_letd2:                           Decimal float library routines.
!                                                              (line  296)
  * __dpd_ltdd2:                           Decimal float library routines.
!                                                              (line  285)
  * __dpd_ltsd2:                           Decimal float library routines.
!                                                              (line  283)
  * __dpd_lttd2:                           Decimal float library routines.
!                                                              (line  287)
  * __dpd_muldd3:                          Decimal float library routines.
!                                                              (line   52)
  * __dpd_mulsd3:                          Decimal float library routines.
!                                                              (line   48)
  * __dpd_multd3:                          Decimal float library routines.
!                                                              (line   56)
  * __dpd_nedd2:                           Decimal float library routines.
!                                                              (line  267)
  * __dpd_negdd2:                          Decimal float library routines.
!                                                              (line   77)
  * __dpd_negsd2:                          Decimal float library routines.
!                                                              (line   75)
  * __dpd_negtd2:                          Decimal float library routines.
!                                                              (line   79)
  * __dpd_nesd2:                           Decimal float library routines.
!                                                              (line  265)
  * __dpd_netd2:                           Decimal float library routines.
!                                                              (line  269)
  * __dpd_subdd3:                          Decimal float library routines.
!                                                              (line   37)
  * __dpd_subsd3:                          Decimal float library routines.
!                                                              (line   33)
  * __dpd_subtd3:                          Decimal float library routines.
!                                                              (line   41)
  * __dpd_truncdddf:                       Decimal float library routines.
!                                                              (line  152)
  * __dpd_truncddsd2:                      Decimal float library routines.
!                                                              (line   93)
  * __dpd_truncddsf:                       Decimal float library routines.
!                                                              (line  123)
  * __dpd_truncdfsd:                       Decimal float library routines.
!                                                              (line  110)
  * __dpd_truncsdsf:                       Decimal float library routines.
!                                                              (line  150)
  * __dpd_trunctddd2:                      Decimal float library routines.
!                                                              (line   97)
  * __dpd_trunctddf:                       Decimal float library routines.
!                                                              (line  129)
  * __dpd_trunctdsd2:                      Decimal float library routines.
!                                                              (line   95)
  * __dpd_trunctdsf:                       Decimal float library routines.
!                                                              (line  125)
  * __dpd_trunctdtf:                       Decimal float library routines.
!                                                              (line  154)
  * __dpd_trunctdxf:                       Decimal float library routines.
!                                                              (line  135)
  * __dpd_trunctfdd:                       Decimal float library routines.
!                                                              (line  118)
  * __dpd_trunctfsd:                       Decimal float library routines.
!                                                              (line  114)
  * __dpd_truncxfdd:                       Decimal float library routines.
!                                                              (line  116)
  * __dpd_truncxfsd:                       Decimal float library routines.
!                                                              (line  112)
  * __dpd_unorddd2:                        Decimal float library routines.
!                                                              (line  234)
  * __dpd_unordsd2:                        Decimal float library routines.
!                                                              (line  232)
  * __dpd_unordtd2:                        Decimal float library routines.
!                                                              (line  236)
  * __DTOR_LIST__:                         Initialization.     (line   25)
  * __eqdf2:                               Soft float library routines.
-                                                              (line  194)
- * __eqsf2:                               Soft float library routines.
                                                               (line  193)
  * __eqtf2:                               Soft float library routines.
!                                                              (line  195)
  * __extenddftf2:                         Soft float library routines.
!                                                              (line   68)
  * __extenddfxf2:                         Soft float library routines.
!                                                              (line   69)
  * __extendsfdf2:                         Soft float library routines.
!                                                              (line   65)
  * __extendsftf2:                         Soft float library routines.
!                                                              (line   66)
  * __extendsfxf2:                         Soft float library routines.
!                                                              (line   67)
  * __ffsdi2:                              Integer library routines.
!                                                              (line  144)
  * __ffsti2:                              Integer library routines.
!                                                              (line  145)
  * __fixdfdi:                             Soft float library routines.
!                                                              (line   88)
  * __fixdfsi:                             Soft float library routines.
!                                                              (line   81)
  * __fixdfti:                             Soft float library routines.
!                                                              (line   94)
  * __fixsfdi:                             Soft float library routines.
!                                                              (line   87)
  * __fixsfsi:                             Soft float library routines.
!                                                              (line   80)
  * __fixsfti:                             Soft float library routines.
!                                                              (line   93)
  * __fixtfdi:                             Soft float library routines.
!                                                              (line   89)
  * __fixtfsi:                             Soft float library routines.
!                                                              (line   82)
  * __fixtfti:                             Soft float library routines.
!                                                              (line   95)
  * __fixunsdfdi:                          Soft float library routines.
!                                                              (line  108)
  * __fixunsdfsi:                          Soft float library routines.
!                                                              (line  101)
  * __fixunsdfti:                          Soft float library routines.
!                                                              (line  115)
  * __fixunssfdi:                          Soft float library routines.
!                                                              (line  107)
  * __fixunssfsi:                          Soft float library routines.
!                                                              (line  100)
  * __fixunssfti:                          Soft float library routines.
!                                                              (line  114)
  * __fixunstfdi:                          Soft float library routines.
!                                                              (line  109)
  * __fixunstfsi:                          Soft float library routines.
!                                                              (line  102)
  * __fixunstfti:                          Soft float library routines.
!                                                              (line  116)
  * __fixunsxfdi:                          Soft float library routines.
!                                                              (line  110)
  * __fixunsxfsi:                          Soft float library routines.
!                                                              (line  103)
  * __fixunsxfti:                          Soft float library routines.
!                                                              (line  117)
  * __fixxfdi:                             Soft float library routines.
!                                                              (line   90)
  * __fixxfsi:                             Soft float library routines.
!                                                              (line   83)
  * __fixxfti:                             Soft float library routines.
!                                                              (line   96)
  * __floatdidf:                           Soft float library routines.
-                                                              (line  128)
- * __floatdisf:                           Soft float library routines.
                                                               (line  127)
  * __floatditf:                           Soft float library routines.
!                                                              (line  129)
  * __floatdixf:                           Soft float library routines.
!                                                              (line  130)
  * __floatsidf:                           Soft float library routines.
-                                                              (line  122)
- * __floatsisf:                           Soft float library routines.
                                                               (line  121)
  * __floatsitf:                           Soft float library routines.
!                                                              (line  123)
  * __floatsixf:                           Soft float library routines.
!                                                              (line  124)
  * __floattidf:                           Soft float library routines.
-                                                              (line  134)
- * __floattisf:                           Soft float library routines.
                                                               (line  133)
  * __floattitf:                           Soft float library routines.
!                                                              (line  135)
  * __floattixf:                           Soft float library routines.
!                                                              (line  136)
  * __floatundidf:                         Soft float library routines.
-                                                              (line  146)
- * __floatundisf:                         Soft float library routines.
                                                               (line  145)
  * __floatunditf:                         Soft float library routines.
!                                                              (line  147)
  * __floatundixf:                         Soft float library routines.
!                                                              (line  148)
  * __floatunsidf:                         Soft float library routines.
-                                                              (line  140)
- * __floatunsisf:                         Soft float library routines.
                                                               (line  139)
  * __floatunsitf:                         Soft float library routines.
!                                                              (line  141)
  * __floatunsixf:                         Soft float library routines.
!                                                              (line  142)
  * __floatuntidf:                         Soft float library routines.
-                                                              (line  152)
- * __floatuntisf:                         Soft float library routines.
                                                               (line  151)
  * __floatuntitf:                         Soft float library routines.
!                                                              (line  153)
  * __floatuntixf:                         Soft float library routines.
!                                                              (line  154)
  * __fractdadf:                           Fixed-point fractional library routines.
!                                                              (line  636)
  * __fractdadi:                           Fixed-point fractional library routines.
!                                                              (line  633)
  * __fractdadq:                           Fixed-point fractional library routines.
!                                                              (line  616)
  * __fractdaha2:                          Fixed-point fractional library routines.
!                                                              (line  617)
  * __fractdahi:                           Fixed-point fractional library routines.
!                                                              (line  631)
  * __fractdahq:                           Fixed-point fractional library routines.
!                                                              (line  614)
  * __fractdaqi:                           Fixed-point fractional library routines.
!                                                              (line  630)
  * __fractdaqq:                           Fixed-point fractional library routines.
!                                                              (line  613)
  * __fractdasa2:                          Fixed-point fractional library routines.
!                                                              (line  618)
  * __fractdasf:                           Fixed-point fractional library routines.
!                                                              (line  635)
  * __fractdasi:                           Fixed-point fractional library routines.
!                                                              (line  632)
  * __fractdasq:                           Fixed-point fractional library routines.
!                                                              (line  615)
  * __fractdata2:                          Fixed-point fractional library routines.
!                                                              (line  619)
  * __fractdati:                           Fixed-point fractional library routines.
!                                                              (line  634)
  * __fractdauda:                          Fixed-point fractional library routines.
!                                                              (line  627)
  * __fractdaudq:                          Fixed-point fractional library routines.
!                                                              (line  624)
  * __fractdauha:                          Fixed-point fractional library routines.
!                                                              (line  625)
  * __fractdauhq:                          Fixed-point fractional library routines.
!                                                              (line  621)
  * __fractdauqq:                          Fixed-point fractional library routines.
!                                                              (line  620)
  * __fractdausa:                          Fixed-point fractional library routines.
!                                                              (line  626)
  * __fractdausq:                          Fixed-point fractional library routines.
-                                                              (line  622)
- * __fractdauta:                          Fixed-point fractional library routines.
                                                               (line  629)
  * __fractdfda:                           Fixed-point fractional library routines.
!                                                              (line 1025)
  * __fractdfdq:                           Fixed-point fractional library routines.
!                                                              (line 1022)
  * __fractdfha:                           Fixed-point fractional library routines.
!                                                              (line 1023)
  * __fractdfhq:                           Fixed-point fractional library routines.
!                                                              (line 1020)
  * __fractdfqq:                           Fixed-point fractional library routines.
!                                                              (line 1019)
  * __fractdfsa:                           Fixed-point fractional library routines.
!                                                              (line 1024)
  * __fractdfsq:                           Fixed-point fractional library routines.
!                                                              (line 1021)
  * __fractdfta:                           Fixed-point fractional library routines.
-                                                              (line 1026)
- * __fractdfuda:                          Fixed-point fractional library routines.
                                                               (line 1033)
  * __fractdfudq:                          Fixed-point fractional library routines.
!                                                              (line 1030)
  * __fractdfuha:                          Fixed-point fractional library routines.
!                                                              (line 1031)
  * __fractdfuhq:                          Fixed-point fractional library routines.
!                                                              (line 1028)
  * __fractdfuqq:                          Fixed-point fractional library routines.
!                                                              (line 1027)
  * __fractdfusa:                          Fixed-point fractional library routines.
!                                                              (line 1032)
  * __fractdfusq:                          Fixed-point fractional library routines.
!                                                              (line 1029)
  * __fractdfuta:                          Fixed-point fractional library routines.
!                                                              (line 1034)
  * __fractdida:                           Fixed-point fractional library routines.
!                                                              (line  975)
  * __fractdidq:                           Fixed-point fractional library routines.
!                                                              (line  972)
  * __fractdiha:                           Fixed-point fractional library routines.
!                                                              (line  973)
  * __fractdihq:                           Fixed-point fractional library routines.
!                                                              (line  970)
  * __fractdiqq:                           Fixed-point fractional library routines.
!                                                              (line  969)
  * __fractdisa:                           Fixed-point fractional library routines.
!                                                              (line  974)
  * __fractdisq:                           Fixed-point fractional library routines.
!                                                              (line  971)
  * __fractdita:                           Fixed-point fractional library routines.
-                                                              (line  976)
- * __fractdiuda:                          Fixed-point fractional library routines.
                                                               (line  983)
  * __fractdiudq:                          Fixed-point fractional library routines.
!                                                              (line  980)
  * __fractdiuha:                          Fixed-point fractional library routines.
!                                                              (line  981)
  * __fractdiuhq:                          Fixed-point fractional library routines.
!                                                              (line  978)
  * __fractdiuqq:                          Fixed-point fractional library routines.
!                                                              (line  977)
  * __fractdiusa:                          Fixed-point fractional library routines.
!                                                              (line  982)
  * __fractdiusq:                          Fixed-point fractional library routines.
!                                                              (line  979)
  * __fractdiuta:                          Fixed-point fractional library routines.
!                                                              (line  984)
  * __fractdqda:                           Fixed-point fractional library routines.
!                                                              (line  544)
  * __fractdqdf:                           Fixed-point fractional library routines.
!                                                              (line  566)
  * __fractdqdi:                           Fixed-point fractional library routines.
!                                                              (line  563)
  * __fractdqha:                           Fixed-point fractional library routines.
!                                                              (line  542)
  * __fractdqhi:                           Fixed-point fractional library routines.
!                                                              (line  561)
  * __fractdqhq2:                          Fixed-point fractional library routines.
!                                                              (line  540)
  * __fractdqqi:                           Fixed-point fractional library routines.
!                                                              (line  560)
  * __fractdqqq2:                          Fixed-point fractional library routines.
!                                                              (line  539)
  * __fractdqsa:                           Fixed-point fractional library routines.
!                                                              (line  543)
  * __fractdqsf:                           Fixed-point fractional library routines.
!                                                              (line  565)
  * __fractdqsi:                           Fixed-point fractional library routines.
!                                                              (line  562)
  * __fractdqsq2:                          Fixed-point fractional library routines.
!                                                              (line  541)
  * __fractdqta:                           Fixed-point fractional library routines.
!                                                              (line  545)
  * __fractdqti:                           Fixed-point fractional library routines.
!                                                              (line  564)
  * __fractdquda:                          Fixed-point fractional library routines.
!                                                              (line  557)
  * __fractdqudq:                          Fixed-point fractional library routines.
!                                                              (line  552)
  * __fractdquha:                          Fixed-point fractional library routines.
!                                                              (line  554)
  * __fractdquhq:                          Fixed-point fractional library routines.
!                                                              (line  548)
  * __fractdquqq:                          Fixed-point fractional library routines.
!                                                              (line  547)
  * __fractdqusa:                          Fixed-point fractional library routines.
!                                                              (line  555)
  * __fractdqusq:                          Fixed-point fractional library routines.
!                                                              (line  550)
  * __fractdquta:                          Fixed-point fractional library routines.
!                                                              (line  559)
  * __fracthada2:                          Fixed-point fractional library routines.
!                                                              (line  572)
  * __fracthadf:                           Fixed-point fractional library routines.
!                                                              (line  590)
  * __fracthadi:                           Fixed-point fractional library routines.
!                                                              (line  587)
  * __fracthadq:                           Fixed-point fractional library routines.
!                                                              (line  570)
  * __fracthahi:                           Fixed-point fractional library routines.
!                                                              (line  585)
  * __fracthahq:                           Fixed-point fractional library routines.
!                                                              (line  568)
  * __fracthaqi:                           Fixed-point fractional library routines.
!                                                              (line  584)
  * __fracthaqq:                           Fixed-point fractional library routines.
!                                                              (line  567)
  * __fracthasa2:                          Fixed-point fractional library routines.
!                                                              (line  571)
  * __fracthasf:                           Fixed-point fractional library routines.
!                                                              (line  589)
  * __fracthasi:                           Fixed-point fractional library routines.
!                                                              (line  586)
  * __fracthasq:                           Fixed-point fractional library routines.
!                                                              (line  569)
  * __fracthata2:                          Fixed-point fractional library routines.
!                                                              (line  573)
  * __fracthati:                           Fixed-point fractional library routines.
!                                                              (line  588)
  * __fracthauda:                          Fixed-point fractional library routines.
!                                                              (line  581)
  * __fracthaudq:                          Fixed-point fractional library routines.
!                                                              (line  578)
  * __fracthauha:                          Fixed-point fractional library routines.
!                                                              (line  579)
  * __fracthauhq:                          Fixed-point fractional library routines.
!                                                              (line  575)
  * __fracthauqq:                          Fixed-point fractional library routines.
!                                                              (line  574)
  * __fracthausa:                          Fixed-point fractional library routines.
!                                                              (line  580)
  * __fracthausq:                          Fixed-point fractional library routines.
-                                                              (line  576)
- * __fracthauta:                          Fixed-point fractional library routines.
                                                               (line  583)
  * __fracthida:                           Fixed-point fractional library routines.
!                                                              (line  943)
  * __fracthidq:                           Fixed-point fractional library routines.
!                                                              (line  940)
  * __fracthiha:                           Fixed-point fractional library routines.
!                                                              (line  941)
  * __fracthihq:                           Fixed-point fractional library routines.
!                                                              (line  938)
  * __fracthiqq:                           Fixed-point fractional library routines.
!                                                              (line  937)
  * __fracthisa:                           Fixed-point fractional library routines.
!                                                              (line  942)
  * __fracthisq:                           Fixed-point fractional library routines.
!                                                              (line  939)
  * __fracthita:                           Fixed-point fractional library routines.
-                                                              (line  944)
- * __fracthiuda:                          Fixed-point fractional library routines.
                                                               (line  951)
  * __fracthiudq:                          Fixed-point fractional library routines.
!                                                              (line  948)
  * __fracthiuha:                          Fixed-point fractional library routines.
!                                                              (line  949)
  * __fracthiuhq:                          Fixed-point fractional library routines.
!                                                              (line  946)
  * __fracthiuqq:                          Fixed-point fractional library routines.
!                                                              (line  945)
  * __fracthiusa:                          Fixed-point fractional library routines.
!                                                              (line  950)
  * __fracthiusq:                          Fixed-point fractional library routines.
!                                                              (line  947)
  * __fracthiuta:                          Fixed-point fractional library routines.
!                                                              (line  952)
  * __fracthqda:                           Fixed-point fractional library routines.
!                                                              (line  498)
  * __fracthqdf:                           Fixed-point fractional library routines.
!                                                              (line  514)
  * __fracthqdi:                           Fixed-point fractional library routines.
!                                                              (line  511)
  * __fracthqdq2:                          Fixed-point fractional library routines.
!                                                              (line  495)
  * __fracthqha:                           Fixed-point fractional library routines.
!                                                              (line  496)
  * __fracthqhi:                           Fixed-point fractional library routines.
!                                                              (line  509)
  * __fracthqqi:                           Fixed-point fractional library routines.
!                                                              (line  508)
  * __fracthqqq2:                          Fixed-point fractional library routines.
!                                                              (line  493)
  * __fracthqsa:                           Fixed-point fractional library routines.
!                                                              (line  497)
  * __fracthqsf:                           Fixed-point fractional library routines.
!                                                              (line  513)
  * __fracthqsi:                           Fixed-point fractional library routines.
!                                                              (line  510)
  * __fracthqsq2:                          Fixed-point fractional library routines.
!                                                              (line  494)
  * __fracthqta:                           Fixed-point fractional library routines.
!                                                              (line  499)
  * __fracthqti:                           Fixed-point fractional library routines.
!                                                              (line  512)
  * __fracthquda:                          Fixed-point fractional library routines.
!                                                              (line  506)
  * __fracthqudq:                          Fixed-point fractional library routines.
!                                                              (line  503)
  * __fracthquha:                          Fixed-point fractional library routines.
!                                                              (line  504)
  * __fracthquhq:                          Fixed-point fractional library routines.
!                                                              (line  501)
  * __fracthquqq:                          Fixed-point fractional library routines.
!                                                              (line  500)
  * __fracthqusa:                          Fixed-point fractional library routines.
!                                                              (line  505)
  * __fracthqusq:                          Fixed-point fractional library routines.
!                                                              (line  502)
  * __fracthquta:                          Fixed-point fractional library routines.
!                                                              (line  507)
  * __fractqida:                           Fixed-point fractional library routines.
!                                                              (line  925)
  * __fractqidq:                           Fixed-point fractional library routines.
!                                                              (line  922)
  * __fractqiha:                           Fixed-point fractional library routines.
!                                                              (line  923)
  * __fractqihq:                           Fixed-point fractional library routines.
!                                                              (line  920)
  * __fractqiqq:                           Fixed-point fractional library routines.
!                                                              (line  919)
  * __fractqisa:                           Fixed-point fractional library routines.
!                                                              (line  924)
  * __fractqisq:                           Fixed-point fractional library routines.
!                                                              (line  921)
  * __fractqita:                           Fixed-point fractional library routines.
!                                                              (line  926)
  * __fractqiuda:                          Fixed-point fractional library routines.
!                                                              (line  934)
  * __fractqiudq:                          Fixed-point fractional library routines.
!                                                              (line  931)
  * __fractqiuha:                          Fixed-point fractional library routines.
!                                                              (line  932)
  * __fractqiuhq:                          Fixed-point fractional library routines.
!                                                              (line  928)
  * __fractqiuqq:                          Fixed-point fractional library routines.
!                                                              (line  927)
  * __fractqiusa:                          Fixed-point fractional library routines.
!                                                              (line  933)
  * __fractqiusq:                          Fixed-point fractional library routines.
-                                                              (line  929)
- * __fractqiuta:                          Fixed-point fractional library routines.
                                                               (line  936)
  * __fractqqda:                           Fixed-point fractional library routines.
!                                                              (line  474)
  * __fractqqdf:                           Fixed-point fractional library routines.
!                                                              (line  492)
  * __fractqqdi:                           Fixed-point fractional library routines.
!                                                              (line  489)
  * __fractqqdq2:                          Fixed-point fractional library routines.
!                                                              (line  471)
  * __fractqqha:                           Fixed-point fractional library routines.
!                                                              (line  472)
  * __fractqqhi:                           Fixed-point fractional library routines.
!                                                              (line  487)
  * __fractqqhq2:                          Fixed-point fractional library routines.
!                                                              (line  469)
  * __fractqqqi:                           Fixed-point fractional library routines.
!                                                              (line  486)
  * __fractqqsa:                           Fixed-point fractional library routines.
!                                                              (line  473)
  * __fractqqsf:                           Fixed-point fractional library routines.
!                                                              (line  491)
  * __fractqqsi:                           Fixed-point fractional library routines.
!                                                              (line  488)
  * __fractqqsq2:                          Fixed-point fractional library routines.
!                                                              (line  470)
  * __fractqqta:                           Fixed-point fractional library routines.
!                                                              (line  475)
  * __fractqqti:                           Fixed-point fractional library routines.
!                                                              (line  490)
  * __fractqquda:                          Fixed-point fractional library routines.
!                                                              (line  483)
  * __fractqqudq:                          Fixed-point fractional library routines.
!                                                              (line  480)
  * __fractqquha:                          Fixed-point fractional library routines.
!                                                              (line  481)
  * __fractqquhq:                          Fixed-point fractional library routines.
!                                                              (line  477)
  * __fractqquqq:                          Fixed-point fractional library routines.
!                                                              (line  476)
  * __fractqqusa:                          Fixed-point fractional library routines.
!                                                              (line  482)
  * __fractqqusq:                          Fixed-point fractional library routines.
-                                                              (line  478)
- * __fractqquta:                          Fixed-point fractional library routines.
                                                               (line  485)
  * __fractsada2:                          Fixed-point fractional library routines.
!                                                              (line  596)
  * __fractsadf:                           Fixed-point fractional library routines.
!                                                              (line  612)
  * __fractsadi:                           Fixed-point fractional library routines.
!                                                              (line  609)
  * __fractsadq:                           Fixed-point fractional library routines.
!                                                              (line  594)
  * __fractsaha2:                          Fixed-point fractional library routines.
!                                                              (line  595)
  * __fractsahi:                           Fixed-point fractional library routines.
!                                                              (line  607)
  * __fractsahq:                           Fixed-point fractional library routines.
!                                                              (line  592)
  * __fractsaqi:                           Fixed-point fractional library routines.
!                                                              (line  606)
  * __fractsaqq:                           Fixed-point fractional library routines.
!                                                              (line  591)
  * __fractsasf:                           Fixed-point fractional library routines.
!                                                              (line  611)
  * __fractsasi:                           Fixed-point fractional library routines.
!                                                              (line  608)
  * __fractsasq:                           Fixed-point fractional library routines.
!                                                              (line  593)
  * __fractsata2:                          Fixed-point fractional library routines.
!                                                              (line  597)
  * __fractsati:                           Fixed-point fractional library routines.
!                                                              (line  610)
  * __fractsauda:                          Fixed-point fractional library routines.
!                                                              (line  604)
  * __fractsaudq:                          Fixed-point fractional library routines.
!                                                              (line  601)
  * __fractsauha:                          Fixed-point fractional library routines.
!                                                              (line  602)
  * __fractsauhq:                          Fixed-point fractional library routines.
!                                                              (line  599)
  * __fractsauqq:                          Fixed-point fractional library routines.
!                                                              (line  598)
  * __fractsausa:                          Fixed-point fractional library routines.
!                                                              (line  603)
  * __fractsausq:                          Fixed-point fractional library routines.
!                                                              (line  600)
  * __fractsauta:                          Fixed-point fractional library routines.
!                                                              (line  605)
  * __fractsfda:                           Fixed-point fractional library routines.
!                                                              (line 1009)
  * __fractsfdq:                           Fixed-point fractional library routines.
!                                                              (line 1006)
  * __fractsfha:                           Fixed-point fractional library routines.
!                                                              (line 1007)
  * __fractsfhq:                           Fixed-point fractional library routines.
!                                                              (line 1004)
  * __fractsfqq:                           Fixed-point fractional library routines.
!                                                              (line 1003)
  * __fractsfsa:                           Fixed-point fractional library routines.
!                                                              (line 1008)
  * __fractsfsq:                           Fixed-point fractional library routines.
!                                                              (line 1005)
  * __fractsfta:                           Fixed-point fractional library routines.
-                                                              (line 1010)
- * __fractsfuda:                          Fixed-point fractional library routines.
                                                               (line 1017)
  * __fractsfudq:                          Fixed-point fractional library routines.
!                                                              (line 1014)
  * __fractsfuha:                          Fixed-point fractional library routines.
!                                                              (line 1015)
  * __fractsfuhq:                          Fixed-point fractional library routines.
!                                                              (line 1012)
  * __fractsfuqq:                          Fixed-point fractional library routines.
!                                                              (line 1011)
  * __fractsfusa:                          Fixed-point fractional library routines.
!                                                              (line 1016)
  * __fractsfusq:                          Fixed-point fractional library routines.
!                                                              (line 1013)
  * __fractsfuta:                          Fixed-point fractional library routines.
!                                                              (line 1018)
  * __fractsida:                           Fixed-point fractional library routines.
!                                                              (line  959)
  * __fractsidq:                           Fixed-point fractional library routines.
!                                                              (line  956)
  * __fractsiha:                           Fixed-point fractional library routines.
!                                                              (line  957)
  * __fractsihq:                           Fixed-point fractional library routines.
!                                                              (line  954)
  * __fractsiqq:                           Fixed-point fractional library routines.
!                                                              (line  953)
  * __fractsisa:                           Fixed-point fractional library routines.
!                                                              (line  958)
  * __fractsisq:                           Fixed-point fractional library routines.
!                                                              (line  955)
  * __fractsita:                           Fixed-point fractional library routines.
-                                                              (line  960)
- * __fractsiuda:                          Fixed-point fractional library routines.
                                                               (line  967)
  * __fractsiudq:                          Fixed-point fractional library routines.
!                                                              (line  964)
  * __fractsiuha:                          Fixed-point fractional library routines.
!                                                              (line  965)
  * __fractsiuhq:                          Fixed-point fractional library routines.
!                                                              (line  962)
  * __fractsiuqq:                          Fixed-point fractional library routines.
!                                                              (line  961)
  * __fractsiusa:                          Fixed-point fractional library routines.
!                                                              (line  966)
  * __fractsiusq:                          Fixed-point fractional library routines.
!                                                              (line  963)
  * __fractsiuta:                          Fixed-point fractional library routines.
!                                                              (line  968)
  * __fractsqda:                           Fixed-point fractional library routines.
!                                                              (line  520)
  * __fractsqdf:                           Fixed-point fractional library routines.
!                                                              (line  538)
  * __fractsqdi:                           Fixed-point fractional library routines.
!                                                              (line  535)
  * __fractsqdq2:                          Fixed-point fractional library routines.
!                                                              (line  517)
  * __fractsqha:                           Fixed-point fractional library routines.
!                                                              (line  518)
  * __fractsqhi:                           Fixed-point fractional library routines.
!                                                              (line  533)
  * __fractsqhq2:                          Fixed-point fractional library routines.
!                                                              (line  516)
  * __fractsqqi:                           Fixed-point fractional library routines.
!                                                              (line  532)
  * __fractsqqq2:                          Fixed-point fractional library routines.
!                                                              (line  515)
  * __fractsqsa:                           Fixed-point fractional library routines.
!                                                              (line  519)
  * __fractsqsf:                           Fixed-point fractional library routines.
!                                                              (line  537)
  * __fractsqsi:                           Fixed-point fractional library routines.
!                                                              (line  534)
  * __fractsqta:                           Fixed-point fractional library routines.
!                                                              (line  521)
  * __fractsqti:                           Fixed-point fractional library routines.
!                                                              (line  536)
  * __fractsquda:                          Fixed-point fractional library routines.
!                                                              (line  529)
  * __fractsqudq:                          Fixed-point fractional library routines.
!                                                              (line  526)
  * __fractsquha:                          Fixed-point fractional library routines.
!                                                              (line  527)
  * __fractsquhq:                          Fixed-point fractional library routines.
!                                                              (line  523)
  * __fractsquqq:                          Fixed-point fractional library routines.
!                                                              (line  522)
  * __fractsqusa:                          Fixed-point fractional library routines.
!                                                              (line  528)
  * __fractsqusq:                          Fixed-point fractional library routines.
-                                                              (line  524)
- * __fractsquta:                          Fixed-point fractional library routines.
                                                               (line  531)
  * __fracttada2:                          Fixed-point fractional library routines.
!                                                              (line  643)
  * __fracttadf:                           Fixed-point fractional library routines.
!                                                              (line  664)
  * __fracttadi:                           Fixed-point fractional library routines.
!                                                              (line  661)
  * __fracttadq:                           Fixed-point fractional library routines.
!                                                              (line  640)
  * __fracttaha2:                          Fixed-point fractional library routines.
!                                                              (line  641)
  * __fracttahi:                           Fixed-point fractional library routines.
!                                                              (line  659)
  * __fracttahq:                           Fixed-point fractional library routines.
!                                                              (line  638)
  * __fracttaqi:                           Fixed-point fractional library routines.
!                                                              (line  658)
  * __fracttaqq:                           Fixed-point fractional library routines.
!                                                              (line  637)
  * __fracttasa2:                          Fixed-point fractional library routines.
!                                                              (line  642)
  * __fracttasf:                           Fixed-point fractional library routines.
!                                                              (line  663)
  * __fracttasi:                           Fixed-point fractional library routines.
!                                                              (line  660)
  * __fracttasq:                           Fixed-point fractional library routines.
!                                                              (line  639)
  * __fracttati:                           Fixed-point fractional library routines.
!                                                              (line  662)
  * __fracttauda:                          Fixed-point fractional library routines.
!                                                              (line  655)
  * __fracttaudq:                          Fixed-point fractional library routines.
!                                                              (line  650)
  * __fracttauha:                          Fixed-point fractional library routines.
!                                                              (line  652)
  * __fracttauhq:                          Fixed-point fractional library routines.
!                                                              (line  646)
  * __fracttauqq:                          Fixed-point fractional library routines.
!                                                              (line  645)
  * __fracttausa:                          Fixed-point fractional library routines.
!                                                              (line  653)
  * __fracttausq:                          Fixed-point fractional library routines.
!                                                              (line  648)
  * __fracttauta:                          Fixed-point fractional library routines.
!                                                              (line  657)
  * __fracttida:                           Fixed-point fractional library routines.
!                                                              (line  991)
  * __fracttidq:                           Fixed-point fractional library routines.
!                                                              (line  988)
  * __fracttiha:                           Fixed-point fractional library routines.
!                                                              (line  989)
  * __fracttihq:                           Fixed-point fractional library routines.
!                                                              (line  986)
  * __fracttiqq:                           Fixed-point fractional library routines.
!                                                              (line  985)
  * __fracttisa:                           Fixed-point fractional library routines.
!                                                              (line  990)
  * __fracttisq:                           Fixed-point fractional library routines.
!                                                              (line  987)
  * __fracttita:                           Fixed-point fractional library routines.
!                                                              (line  992)
  * __fracttiuda:                          Fixed-point fractional library routines.
!                                                              (line 1000)
  * __fracttiudq:                          Fixed-point fractional library routines.
!                                                              (line  997)
  * __fracttiuha:                          Fixed-point fractional library routines.
!                                                              (line  998)
  * __fracttiuhq:                          Fixed-point fractional library routines.
!                                                              (line  994)
  * __fracttiuqq:                          Fixed-point fractional library routines.
!                                                              (line  993)
  * __fracttiusa:                          Fixed-point fractional library routines.
!                                                              (line  999)
  * __fracttiusq:                          Fixed-point fractional library routines.
-                                                              (line  995)
- * __fracttiuta:                          Fixed-point fractional library routines.
                                                               (line 1002)
  * __fractudada:                          Fixed-point fractional library routines.
!                                                              (line  858)
  * __fractudadf:                          Fixed-point fractional library routines.
!                                                              (line  881)
  * __fractudadi:                          Fixed-point fractional library routines.
!                                                              (line  878)
  * __fractudadq:                          Fixed-point fractional library routines.
!                                                              (line  855)
  * __fractudaha:                          Fixed-point fractional library routines.
!                                                              (line  856)
  * __fractudahi:                          Fixed-point fractional library routines.
!                                                              (line  876)
  * __fractudahq:                          Fixed-point fractional library routines.
!                                                              (line  852)
  * __fractudaqi:                          Fixed-point fractional library routines.
!                                                              (line  875)
  * __fractudaqq:                          Fixed-point fractional library routines.
!                                                              (line  851)
  * __fractudasa:                          Fixed-point fractional library routines.
!                                                              (line  857)
  * __fractudasf:                          Fixed-point fractional library routines.
!                                                              (line  880)
  * __fractudasi:                          Fixed-point fractional library routines.
!                                                              (line  877)
  * __fractudasq:                          Fixed-point fractional library routines.
-                                                              (line  853)
- * __fractudata:                          Fixed-point fractional library routines.
                                                               (line  860)
  * __fractudati:                          Fixed-point fractional library routines.
!                                                              (line  879)
  * __fractudaudq:                         Fixed-point fractional library routines.
!                                                              (line  868)
  * __fractudauha2:                        Fixed-point fractional library routines.
!                                                              (line  870)
  * __fractudauhq:                         Fixed-point fractional library routines.
!                                                              (line  864)
  * __fractudauqq:                         Fixed-point fractional library routines.
!                                                              (line  862)
  * __fractudausa2:                        Fixed-point fractional library routines.
!                                                              (line  872)
  * __fractudausq:                         Fixed-point fractional library routines.
!                                                              (line  866)
  * __fractudauta2:                        Fixed-point fractional library routines.
!                                                              (line  874)
  * __fractudqda:                          Fixed-point fractional library routines.
!                                                              (line  766)
  * __fractudqdf:                          Fixed-point fractional library routines.
!                                                              (line  791)
  * __fractudqdi:                          Fixed-point fractional library routines.
!                                                              (line  787)
  * __fractudqdq:                          Fixed-point fractional library routines.
!                                                              (line  761)
  * __fractudqha:                          Fixed-point fractional library routines.
!                                                              (line  763)
  * __fractudqhi:                          Fixed-point fractional library routines.
!                                                              (line  785)
  * __fractudqhq:                          Fixed-point fractional library routines.
!                                                              (line  757)
  * __fractudqqi:                          Fixed-point fractional library routines.
!                                                              (line  784)
  * __fractudqqq:                          Fixed-point fractional library routines.
!                                                              (line  756)
  * __fractudqsa:                          Fixed-point fractional library routines.
!                                                              (line  764)
  * __fractudqsf:                          Fixed-point fractional library routines.
!                                                              (line  790)
  * __fractudqsi:                          Fixed-point fractional library routines.
!                                                              (line  786)
  * __fractudqsq:                          Fixed-point fractional library routines.
!                                                              (line  759)
  * __fractudqta:                          Fixed-point fractional library routines.
!                                                              (line  768)
  * __fractudqti:                          Fixed-point fractional library routines.
!                                                              (line  789)
  * __fractudquda:                         Fixed-point fractional library routines.
!                                                              (line  780)
  * __fractudquha:                         Fixed-point fractional library routines.
!                                                              (line  776)
  * __fractudquhq2:                        Fixed-point fractional library routines.
!                                                              (line  772)
  * __fractudquqq2:                        Fixed-point fractional library routines.
!                                                              (line  770)
  * __fractudqusa:                         Fixed-point fractional library routines.
!                                                              (line  778)
  * __fractudqusq2:                        Fixed-point fractional library routines.
!                                                              (line  774)
  * __fractudquta:                         Fixed-point fractional library routines.
!                                                              (line  782)
  * __fractuhada:                          Fixed-point fractional library routines.
!                                                              (line  799)
  * __fractuhadf:                          Fixed-point fractional library routines.
!                                                              (line  822)
  * __fractuhadi:                          Fixed-point fractional library routines.
!                                                              (line  819)
  * __fractuhadq:                          Fixed-point fractional library routines.
!                                                              (line  796)
  * __fractuhaha:                          Fixed-point fractional library routines.
!                                                              (line  797)
  * __fractuhahi:                          Fixed-point fractional library routines.
!                                                              (line  817)
  * __fractuhahq:                          Fixed-point fractional library routines.
!                                                              (line  793)
  * __fractuhaqi:                          Fixed-point fractional library routines.
!                                                              (line  816)
  * __fractuhaqq:                          Fixed-point fractional library routines.
!                                                              (line  792)
  * __fractuhasa:                          Fixed-point fractional library routines.
!                                                              (line  798)
  * __fractuhasf:                          Fixed-point fractional library routines.
!                                                              (line  821)
  * __fractuhasi:                          Fixed-point fractional library routines.
!                                                              (line  818)
  * __fractuhasq:                          Fixed-point fractional library routines.
-                                                              (line  794)
- * __fractuhata:                          Fixed-point fractional library routines.
                                                               (line  801)
  * __fractuhati:                          Fixed-point fractional library routines.
!                                                              (line  820)
  * __fractuhauda2:                        Fixed-point fractional library routines.
!                                                              (line  813)
  * __fractuhaudq:                         Fixed-point fractional library routines.
!                                                              (line  809)
  * __fractuhauhq:                         Fixed-point fractional library routines.
!                                                              (line  805)
  * __fractuhauqq:                         Fixed-point fractional library routines.
!                                                              (line  803)
  * __fractuhausa2:                        Fixed-point fractional library routines.
!                                                              (line  811)
  * __fractuhausq:                         Fixed-point fractional library routines.
!                                                              (line  807)
  * __fractuhauta2:                        Fixed-point fractional library routines.
!                                                              (line  815)
  * __fractuhqda:                          Fixed-point fractional library routines.
!                                                              (line  702)
  * __fractuhqdf:                          Fixed-point fractional library routines.
!                                                              (line  723)
  * __fractuhqdi:                          Fixed-point fractional library routines.
!                                                              (line  720)
  * __fractuhqdq:                          Fixed-point fractional library routines.
!                                                              (line  699)
  * __fractuhqha:                          Fixed-point fractional library routines.
!                                                              (line  700)
  * __fractuhqhi:                          Fixed-point fractional library routines.
!                                                              (line  718)
  * __fractuhqhq:                          Fixed-point fractional library routines.
!                                                              (line  697)
  * __fractuhqqi:                          Fixed-point fractional library routines.
!                                                              (line  717)
  * __fractuhqqq:                          Fixed-point fractional library routines.
!                                                              (line  696)
  * __fractuhqsa:                          Fixed-point fractional library routines.
!                                                              (line  701)
  * __fractuhqsf:                          Fixed-point fractional library routines.
!                                                              (line  722)
  * __fractuhqsi:                          Fixed-point fractional library routines.
!                                                              (line  719)
  * __fractuhqsq:                          Fixed-point fractional library routines.
!                                                              (line  698)
  * __fractuhqta:                          Fixed-point fractional library routines.
!                                                              (line  703)
  * __fractuhqti:                          Fixed-point fractional library routines.
!                                                              (line  721)
  * __fractuhquda:                         Fixed-point fractional library routines.
!                                                              (line  714)
  * __fractuhqudq2:                        Fixed-point fractional library routines.
!                                                              (line  709)
  * __fractuhquha:                         Fixed-point fractional library routines.
!                                                              (line  711)
  * __fractuhquqq2:                        Fixed-point fractional library routines.
!                                                              (line  705)
  * __fractuhqusa:                         Fixed-point fractional library routines.
!                                                              (line  712)
  * __fractuhqusq2:                        Fixed-point fractional library routines.
!                                                              (line  707)
  * __fractuhquta:                         Fixed-point fractional library routines.
!                                                              (line  716)
  * __fractunsdadi:                        Fixed-point fractional library routines.
!                                                              (line 1555)
  * __fractunsdahi:                        Fixed-point fractional library routines.
!                                                              (line 1553)
  * __fractunsdaqi:                        Fixed-point fractional library routines.
!                                                              (line 1552)
  * __fractunsdasi:                        Fixed-point fractional library routines.
!                                                              (line 1554)
  * __fractunsdati:                        Fixed-point fractional library routines.
!                                                              (line 1556)
  * __fractunsdida:                        Fixed-point fractional library routines.
!                                                              (line 1707)
  * __fractunsdidq:                        Fixed-point fractional library routines.
!                                                              (line 1704)
  * __fractunsdiha:                        Fixed-point fractional library routines.
!                                                              (line 1705)
  * __fractunsdihq:                        Fixed-point fractional library routines.
!                                                              (line 1702)
  * __fractunsdiqq:                        Fixed-point fractional library routines.
!                                                              (line 1701)
  * __fractunsdisa:                        Fixed-point fractional library routines.
!                                                              (line 1706)
  * __fractunsdisq:                        Fixed-point fractional library routines.
!                                                              (line 1703)
  * __fractunsdita:                        Fixed-point fractional library routines.
!                                                              (line 1708)
  * __fractunsdiuda:                       Fixed-point fractional library routines.
!                                                              (line 1720)
  * __fractunsdiudq:                       Fixed-point fractional library routines.
!                                                              (line 1715)
  * __fractunsdiuha:                       Fixed-point fractional library routines.
!                                                              (line 1717)
  * __fractunsdiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1711)
  * __fractunsdiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1710)
  * __fractunsdiusa:                       Fixed-point fractional library routines.
!                                                              (line 1718)
  * __fractunsdiusq:                       Fixed-point fractional library routines.
!                                                              (line 1713)
  * __fractunsdiuta:                       Fixed-point fractional library routines.
!                                                              (line 1722)
  * __fractunsdqdi:                        Fixed-point fractional library routines.
!                                                              (line 1539)
  * __fractunsdqhi:                        Fixed-point fractional library routines.
!                                                              (line 1537)
  * __fractunsdqqi:                        Fixed-point fractional library routines.
!                                                              (line 1536)
  * __fractunsdqsi:                        Fixed-point fractional library routines.
!                                                              (line 1538)
  * __fractunsdqti:                        Fixed-point fractional library routines.
!                                                              (line 1541)
  * __fractunshadi:                        Fixed-point fractional library routines.
!                                                              (line 1545)
  * __fractunshahi:                        Fixed-point fractional library routines.
!                                                              (line 1543)
  * __fractunshaqi:                        Fixed-point fractional library routines.
!                                                              (line 1542)
  * __fractunshasi:                        Fixed-point fractional library routines.
!                                                              (line 1544)
  * __fractunshati:                        Fixed-point fractional library routines.
!                                                              (line 1546)
  * __fractunshida:                        Fixed-point fractional library routines.
!                                                              (line 1663)
  * __fractunshidq:                        Fixed-point fractional library routines.
!                                                              (line 1660)
  * __fractunshiha:                        Fixed-point fractional library routines.
!                                                              (line 1661)
  * __fractunshihq:                        Fixed-point fractional library routines.
!                                                              (line 1658)
  * __fractunshiqq:                        Fixed-point fractional library routines.
!                                                              (line 1657)
  * __fractunshisa:                        Fixed-point fractional library routines.
!                                                              (line 1662)
  * __fractunshisq:                        Fixed-point fractional library routines.
!                                                              (line 1659)
  * __fractunshita:                        Fixed-point fractional library routines.
!                                                              (line 1664)
  * __fractunshiuda:                       Fixed-point fractional library routines.
!                                                              (line 1676)
  * __fractunshiudq:                       Fixed-point fractional library routines.
!                                                              (line 1671)
  * __fractunshiuha:                       Fixed-point fractional library routines.
!                                                              (line 1673)
  * __fractunshiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1667)
  * __fractunshiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1666)
  * __fractunshiusa:                       Fixed-point fractional library routines.
!                                                              (line 1674)
  * __fractunshiusq:                       Fixed-point fractional library routines.
!                                                              (line 1669)
  * __fractunshiuta:                       Fixed-point fractional library routines.
!                                                              (line 1678)
  * __fractunshqdi:                        Fixed-point fractional library routines.
!                                                              (line 1529)
  * __fractunshqhi:                        Fixed-point fractional library routines.
!                                                              (line 1527)
  * __fractunshqqi:                        Fixed-point fractional library routines.
!                                                              (line 1526)
  * __fractunshqsi:                        Fixed-point fractional library routines.
!                                                              (line 1528)
  * __fractunshqti:                        Fixed-point fractional library routines.
!                                                              (line 1530)
  * __fractunsqida:                        Fixed-point fractional library routines.
!                                                              (line 1641)
  * __fractunsqidq:                        Fixed-point fractional library routines.
!                                                              (line 1638)
  * __fractunsqiha:                        Fixed-point fractional library routines.
!                                                              (line 1639)
  * __fractunsqihq:                        Fixed-point fractional library routines.
!                                                              (line 1636)
  * __fractunsqiqq:                        Fixed-point fractional library routines.
!                                                              (line 1635)
  * __fractunsqisa:                        Fixed-point fractional library routines.
!                                                              (line 1640)
  * __fractunsqisq:                        Fixed-point fractional library routines.
!                                                              (line 1637)
  * __fractunsqita:                        Fixed-point fractional library routines.
!                                                              (line 1642)
  * __fractunsqiuda:                       Fixed-point fractional library routines.
!                                                              (line 1654)
  * __fractunsqiudq:                       Fixed-point fractional library routines.
!                                                              (line 1649)
  * __fractunsqiuha:                       Fixed-point fractional library routines.
!                                                              (line 1651)
  * __fractunsqiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1645)
  * __fractunsqiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1644)
  * __fractunsqiusa:                       Fixed-point fractional library routines.
!                                                              (line 1652)
  * __fractunsqiusq:                       Fixed-point fractional library routines.
!                                                              (line 1647)
  * __fractunsqiuta:                       Fixed-point fractional library routines.
!                                                              (line 1656)
  * __fractunsqqdi:                        Fixed-point fractional library routines.
!                                                              (line 1524)
  * __fractunsqqhi:                        Fixed-point fractional library routines.
!                                                              (line 1522)
  * __fractunsqqqi:                        Fixed-point fractional library routines.
!                                                              (line 1521)
  * __fractunsqqsi:                        Fixed-point fractional library routines.
!                                                              (line 1523)
  * __fractunsqqti:                        Fixed-point fractional library routines.
!                                                              (line 1525)
  * __fractunssadi:                        Fixed-point fractional library routines.
!                                                              (line 1550)
  * __fractunssahi:                        Fixed-point fractional library routines.
!                                                              (line 1548)
  * __fractunssaqi:                        Fixed-point fractional library routines.
!                                                              (line 1547)
  * __fractunssasi:                        Fixed-point fractional library routines.
!                                                              (line 1549)
  * __fractunssati:                        Fixed-point fractional library routines.
!                                                              (line 1551)
  * __fractunssida:                        Fixed-point fractional library routines.
!                                                              (line 1685)
  * __fractunssidq:                        Fixed-point fractional library routines.
!                                                              (line 1682)
  * __fractunssiha:                        Fixed-point fractional library routines.
!                                                              (line 1683)
  * __fractunssihq:                        Fixed-point fractional library routines.
!                                                              (line 1680)
  * __fractunssiqq:                        Fixed-point fractional library routines.
!                                                              (line 1679)
  * __fractunssisa:                        Fixed-point fractional library routines.
!                                                              (line 1684)
  * __fractunssisq:                        Fixed-point fractional library routines.
!                                                              (line 1681)
  * __fractunssita:                        Fixed-point fractional library routines.
!                                                              (line 1686)
  * __fractunssiuda:                       Fixed-point fractional library routines.
!                                                              (line 1698)
  * __fractunssiudq:                       Fixed-point fractional library routines.
!                                                              (line 1693)
  * __fractunssiuha:                       Fixed-point fractional library routines.
!                                                              (line 1695)
  * __fractunssiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1689)
  * __fractunssiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1688)
  * __fractunssiusa:                       Fixed-point fractional library routines.
!                                                              (line 1696)
  * __fractunssiusq:                       Fixed-point fractional library routines.
!                                                              (line 1691)
  * __fractunssiuta:                       Fixed-point fractional library routines.
!                                                              (line 1700)
  * __fractunssqdi:                        Fixed-point fractional library routines.
!                                                              (line 1534)
  * __fractunssqhi:                        Fixed-point fractional library routines.
!                                                              (line 1532)
  * __fractunssqqi:                        Fixed-point fractional library routines.
!                                                              (line 1531)
  * __fractunssqsi:                        Fixed-point fractional library routines.
!                                                              (line 1533)
  * __fractunssqti:                        Fixed-point fractional library routines.
!                                                              (line 1535)
  * __fractunstadi:                        Fixed-point fractional library routines.
!                                                              (line 1560)
  * __fractunstahi:                        Fixed-point fractional library routines.
!                                                              (line 1558)
  * __fractunstaqi:                        Fixed-point fractional library routines.
!                                                              (line 1557)
  * __fractunstasi:                        Fixed-point fractional library routines.
!                                                              (line 1559)
  * __fractunstati:                        Fixed-point fractional library routines.
!                                                              (line 1562)
  * __fractunstida:                        Fixed-point fractional library routines.
!                                                              (line 1730)
  * __fractunstidq:                        Fixed-point fractional library routines.
!                                                              (line 1727)
  * __fractunstiha:                        Fixed-point fractional library routines.
!                                                              (line 1728)
  * __fractunstihq:                        Fixed-point fractional library routines.
!                                                              (line 1724)
  * __fractunstiqq:                        Fixed-point fractional library routines.
!                                                              (line 1723)
  * __fractunstisa:                        Fixed-point fractional library routines.
!                                                              (line 1729)
  * __fractunstisq:                        Fixed-point fractional library routines.
-                                                              (line 1725)
- * __fractunstita:                        Fixed-point fractional library routines.
                                                               (line 1732)
  * __fractunstiuda:                       Fixed-point fractional library routines.
!                                                              (line 1746)
  * __fractunstiudq:                       Fixed-point fractional library routines.
!                                                              (line 1740)
  * __fractunstiuha:                       Fixed-point fractional library routines.
!                                                              (line 1742)
  * __fractunstiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1736)
  * __fractunstiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1734)
  * __fractunstiusa:                       Fixed-point fractional library routines.
!                                                              (line 1744)
  * __fractunstiusq:                       Fixed-point fractional library routines.
!                                                              (line 1738)
  * __fractunstiuta:                       Fixed-point fractional library routines.
!                                                              (line 1748)
  * __fractunsudadi:                       Fixed-point fractional library routines.
!                                                              (line 1622)
  * __fractunsudahi:                       Fixed-point fractional library routines.
!                                                              (line 1618)
  * __fractunsudaqi:                       Fixed-point fractional library routines.
!                                                              (line 1616)
  * __fractunsudasi:                       Fixed-point fractional library routines.
!                                                              (line 1620)
  * __fractunsudati:                       Fixed-point fractional library routines.
!                                                              (line 1624)
  * __fractunsudqdi:                       Fixed-point fractional library routines.
!                                                              (line 1596)
  * __fractunsudqhi:                       Fixed-point fractional library routines.
!                                                              (line 1592)
  * __fractunsudqqi:                       Fixed-point fractional library routines.
!                                                              (line 1590)
  * __fractunsudqsi:                       Fixed-point fractional library routines.
!                                                              (line 1594)
  * __fractunsudqti:                       Fixed-point fractional library routines.
!                                                              (line 1598)
  * __fractunsuhadi:                       Fixed-point fractional library routines.
!                                                              (line 1606)
  * __fractunsuhahi:                       Fixed-point fractional library routines.
!                                                              (line 1602)
  * __fractunsuhaqi:                       Fixed-point fractional library routines.
!                                                              (line 1600)
  * __fractunsuhasi:                       Fixed-point fractional library routines.
!                                                              (line 1604)
  * __fractunsuhati:                       Fixed-point fractional library routines.
!                                                              (line 1608)
  * __fractunsuhqdi:                       Fixed-point fractional library routines.
!                                                              (line 1576)
  * __fractunsuhqhi:                       Fixed-point fractional library routines.
!                                                              (line 1574)
  * __fractunsuhqqi:                       Fixed-point fractional library routines.
!                                                              (line 1573)
  * __fractunsuhqsi:                       Fixed-point fractional library routines.
!                                                              (line 1575)
  * __fractunsuhqti:                       Fixed-point fractional library routines.
!                                                              (line 1578)
  * __fractunsuqqdi:                       Fixed-point fractional library routines.
!                                                              (line 1570)
  * __fractunsuqqhi:                       Fixed-point fractional library routines.
!                                                              (line 1566)
  * __fractunsuqqqi:                       Fixed-point fractional library routines.
!                                                              (line 1564)
  * __fractunsuqqsi:                       Fixed-point fractional library routines.
!                                                              (line 1568)
  * __fractunsuqqti:                       Fixed-point fractional library routines.
!                                                              (line 1572)
  * __fractunsusadi:                       Fixed-point fractional library routines.
!                                                              (line 1612)
  * __fractunsusahi:                       Fixed-point fractional library routines.
!                                                              (line 1610)
  * __fractunsusaqi:                       Fixed-point fractional library routines.
!                                                              (line 1609)
  * __fractunsusasi:                       Fixed-point fractional library routines.
!                                                              (line 1611)
  * __fractunsusati:                       Fixed-point fractional library routines.
!                                                              (line 1614)
  * __fractunsusqdi:                       Fixed-point fractional library routines.
!                                                              (line 1586)
  * __fractunsusqhi:                       Fixed-point fractional library routines.
!                                                              (line 1582)
  * __fractunsusqqi:                       Fixed-point fractional library routines.
!                                                              (line 1580)
  * __fractunsusqsi:                       Fixed-point fractional library routines.
!                                                              (line 1584)
  * __fractunsusqti:                       Fixed-point fractional library routines.
!                                                              (line 1588)
  * __fractunsutadi:                       Fixed-point fractional library routines.
!                                                              (line 1632)
  * __fractunsutahi:                       Fixed-point fractional library routines.
!                                                              (line 1628)
  * __fractunsutaqi:                       Fixed-point fractional library routines.
!                                                              (line 1626)
  * __fractunsutasi:                       Fixed-point fractional library routines.
!                                                              (line 1630)
  * __fractunsutati:                       Fixed-point fractional library routines.
!                                                              (line 1634)
  * __fractuqqda:                          Fixed-point fractional library routines.
!                                                              (line  672)
  * __fractuqqdf:                          Fixed-point fractional library routines.
!                                                              (line  695)
  * __fractuqqdi:                          Fixed-point fractional library routines.
!                                                              (line  692)
  * __fractuqqdq:                          Fixed-point fractional library routines.
!                                                              (line  669)
  * __fractuqqha:                          Fixed-point fractional library routines.
!                                                              (line  670)
  * __fractuqqhi:                          Fixed-point fractional library routines.
!                                                              (line  690)
  * __fractuqqhq:                          Fixed-point fractional library routines.
!                                                              (line  666)
  * __fractuqqqi:                          Fixed-point fractional library routines.
!                                                              (line  689)
  * __fractuqqqq:                          Fixed-point fractional library routines.
!                                                              (line  665)
  * __fractuqqsa:                          Fixed-point fractional library routines.
!                                                              (line  671)
  * __fractuqqsf:                          Fixed-point fractional library routines.
!                                                              (line  694)
  * __fractuqqsi:                          Fixed-point fractional library routines.
!                                                              (line  691)
  * __fractuqqsq:                          Fixed-point fractional library routines.
-                                                              (line  667)
- * __fractuqqta:                          Fixed-point fractional library routines.
                                                               (line  674)
  * __fractuqqti:                          Fixed-point fractional library routines.
!                                                              (line  693)
  * __fractuqquda:                         Fixed-point fractional library routines.
!                                                              (line  686)
  * __fractuqqudq2:                        Fixed-point fractional library routines.
!                                                              (line  680)
  * __fractuqquha:                         Fixed-point fractional library routines.
!                                                              (line  682)
  * __fractuqquhq2:                        Fixed-point fractional library routines.
!                                                              (line  676)
  * __fractuqqusa:                         Fixed-point fractional library routines.
!                                                              (line  684)
  * __fractuqqusq2:                        Fixed-point fractional library routines.
!                                                              (line  678)
  * __fractuqquta:                         Fixed-point fractional library routines.
!                                                              (line  688)
  * __fractusada:                          Fixed-point fractional library routines.
!                                                              (line  829)
  * __fractusadf:                          Fixed-point fractional library routines.
!                                                              (line  850)
  * __fractusadi:                          Fixed-point fractional library routines.
!                                                              (line  847)
  * __fractusadq:                          Fixed-point fractional library routines.
!                                                              (line  826)
  * __fractusaha:                          Fixed-point fractional library routines.
!                                                              (line  827)
  * __fractusahi:                          Fixed-point fractional library routines.
!                                                              (line  845)
  * __fractusahq:                          Fixed-point fractional library routines.
!                                                              (line  824)
  * __fractusaqi:                          Fixed-point fractional library routines.
!                                                              (line  844)
  * __fractusaqq:                          Fixed-point fractional library routines.
!                                                              (line  823)
  * __fractusasa:                          Fixed-point fractional library routines.
!                                                              (line  828)
  * __fractusasf:                          Fixed-point fractional library routines.
!                                                              (line  849)
  * __fractusasi:                          Fixed-point fractional library routines.
!                                                              (line  846)
  * __fractusasq:                          Fixed-point fractional library routines.
!                                                              (line  825)
  * __fractusata:                          Fixed-point fractional library routines.
!                                                              (line  830)
  * __fractusati:                          Fixed-point fractional library routines.
!                                                              (line  848)
  * __fractusauda2:                        Fixed-point fractional library routines.
!                                                              (line  841)
  * __fractusaudq:                         Fixed-point fractional library routines.
!                                                              (line  837)
  * __fractusauha2:                        Fixed-point fractional library routines.
!                                                              (line  839)
  * __fractusauhq:                         Fixed-point fractional library routines.
!                                                              (line  833)
  * __fractusauqq:                         Fixed-point fractional library routines.
!                                                              (line  832)
  * __fractusausq:                         Fixed-point fractional library routines.
!                                                              (line  835)
  * __fractusauta2:                        Fixed-point fractional library routines.
!                                                              (line  843)
  * __fractusqda:                          Fixed-point fractional library routines.
!                                                              (line  731)
  * __fractusqdf:                          Fixed-point fractional library routines.
!                                                              (line  754)
  * __fractusqdi:                          Fixed-point fractional library routines.
!                                                              (line  751)
  * __fractusqdq:                          Fixed-point fractional library routines.
!                                                              (line  728)
  * __fractusqha:                          Fixed-point fractional library routines.
!                                                              (line  729)
  * __fractusqhi:                          Fixed-point fractional library routines.
!                                                              (line  749)
  * __fractusqhq:                          Fixed-point fractional library routines.
!                                                              (line  725)
  * __fractusqqi:                          Fixed-point fractional library routines.
!                                                              (line  748)
  * __fractusqqq:                          Fixed-point fractional library routines.
!                                                              (line  724)
  * __fractusqsa:                          Fixed-point fractional library routines.
!                                                              (line  730)
  * __fractusqsf:                          Fixed-point fractional library routines.
!                                                              (line  753)
  * __fractusqsi:                          Fixed-point fractional library routines.
!                                                              (line  750)
  * __fractusqsq:                          Fixed-point fractional library routines.
-                                                              (line  726)
- * __fractusqta:                          Fixed-point fractional library routines.
                                                               (line  733)
  * __fractusqti:                          Fixed-point fractional library routines.
!                                                              (line  752)
  * __fractusquda:                         Fixed-point fractional library routines.
!                                                              (line  745)
  * __fractusqudq2:                        Fixed-point fractional library routines.
!                                                              (line  739)
  * __fractusquha:                         Fixed-point fractional library routines.
!                                                              (line  741)
  * __fractusquhq2:                        Fixed-point fractional library routines.
!                                                              (line  737)
  * __fractusquqq2:                        Fixed-point fractional library routines.
!                                                              (line  735)
  * __fractusqusa:                         Fixed-point fractional library routines.
!                                                              (line  743)
  * __fractusquta:                         Fixed-point fractional library routines.
!                                                              (line  747)
  * __fractutada:                          Fixed-point fractional library routines.
!                                                              (line  893)
  * __fractutadf:                          Fixed-point fractional library routines.
!                                                              (line  918)
  * __fractutadi:                          Fixed-point fractional library routines.
!                                                              (line  914)
  * __fractutadq:                          Fixed-point fractional library routines.
!                                                              (line  888)
  * __fractutaha:                          Fixed-point fractional library routines.
!                                                              (line  890)
  * __fractutahi:                          Fixed-point fractional library routines.
!                                                              (line  912)
  * __fractutahq:                          Fixed-point fractional library routines.
!                                                              (line  884)
  * __fractutaqi:                          Fixed-point fractional library routines.
!                                                              (line  911)
  * __fractutaqq:                          Fixed-point fractional library routines.
!                                                              (line  883)
  * __fractutasa:                          Fixed-point fractional library routines.
!                                                              (line  891)
  * __fractutasf:                          Fixed-point fractional library routines.
!                                                              (line  917)
  * __fractutasi:                          Fixed-point fractional library routines.
!                                                              (line  913)
  * __fractutasq:                          Fixed-point fractional library routines.
!                                                              (line  886)
  * __fractutata:                          Fixed-point fractional library routines.
!                                                              (line  895)
  * __fractutati:                          Fixed-point fractional library routines.
!                                                              (line  916)
  * __fractutauda2:                        Fixed-point fractional library routines.
!                                                              (line  909)
  * __fractutaudq:                         Fixed-point fractional library routines.
!                                                              (line  903)
  * __fractutauha2:                        Fixed-point fractional library routines.
!                                                              (line  905)
  * __fractutauhq:                         Fixed-point fractional library routines.
!                                                              (line  899)
  * __fractutauqq:                         Fixed-point fractional library routines.
!                                                              (line  897)
  * __fractutausa2:                        Fixed-point fractional library routines.
!                                                              (line  907)
  * __fractutausq:                         Fixed-point fractional library routines.
!                                                              (line  901)
  * __gedf2:                               Soft float library routines.
-                                                              (line  206)
- * __gesf2:                               Soft float library routines.
                                                               (line  205)
  * __getf2:                               Soft float library routines.
!                                                              (line  207)
  * __gtdf2:                               Soft float library routines.
-                                                              (line  224)
- * __gtsf2:                               Soft float library routines.
                                                               (line  223)
  * __gttf2:                               Soft float library routines.
!                                                              (line  225)
  * __ledf2:                               Soft float library routines.
-                                                              (line  218)
- * __lesf2:                               Soft float library routines.
                                                               (line  217)
  * __letf2:                               Soft float library routines.
!                                                              (line  219)
  * __lshrdi3:                             Integer library routines.
-                                                              (line   31)
- * __lshrsi3:                             Integer library routines.
                                                               (line   30)
  * __lshrti3:                             Integer library routines.
!                                                              (line   32)
  * __lshruda3:                            Fixed-point fractional library routines.
!                                                              (line  390)
  * __lshrudq3:                            Fixed-point fractional library routines.
!                                                              (line  384)
  * __lshruha3:                            Fixed-point fractional library routines.
!                                                              (line  386)
  * __lshruhq3:                            Fixed-point fractional library routines.
!                                                              (line  380)
  * __lshruqq3:                            Fixed-point fractional library routines.
!                                                              (line  378)
  * __lshrusa3:                            Fixed-point fractional library routines.
!                                                              (line  388)
  * __lshrusq3:                            Fixed-point fractional library routines.
!                                                              (line  382)
  * __lshruta3:                            Fixed-point fractional library routines.
!                                                              (line  392)
  * __ltdf2:                               Soft float library routines.
-                                                              (line  212)
- * __ltsf2:                               Soft float library routines.
                                                               (line  211)
  * __lttf2:                               Soft float library routines.
!                                                              (line  213)
  * __main:                                Collect2.           (line   15)
  * __moddi3:                              Integer library routines.
-                                                              (line   37)
- * __modsi3:                              Integer library routines.
                                                               (line   36)
  * __modti3:                              Integer library routines.
!                                                              (line   38)
  * __morestack_current_segment:           Miscellaneous routines.
!                                                              (line   46)
  * __morestack_initial_sp:                Miscellaneous routines.
!                                                              (line   47)
  * __morestack_segments:                  Miscellaneous routines.
!                                                              (line   45)
  * __mulda3:                              Fixed-point fractional library routines.
!                                                              (line  171)
  * __muldc3:                              Soft float library routines.
!                                                              (line  241)
  * __muldf3:                              Soft float library routines.
!                                                              (line   40)
  * __muldi3:                              Integer library routines.
!                                                              (line   43)
  * __muldq3:                              Fixed-point fractional library routines.
!                                                              (line  159)
  * __mulha3:                              Fixed-point fractional library routines.
!                                                              (line  169)
  * __mulhq3:                              Fixed-point fractional library routines.
!                                                              (line  156)
  * __mulqq3:                              Fixed-point fractional library routines.
!                                                              (line  155)
  * __mulsa3:                              Fixed-point fractional library routines.
!                                                              (line  170)
  * __mulsc3:                              Soft float library routines.
!                                                              (line  239)
  * __mulsf3:                              Soft float library routines.
!                                                              (line   39)
  * __mulsi3:                              Integer library routines.
!                                                              (line   42)
  * __mulsq3:                              Fixed-point fractional library routines.
!                                                              (line  157)
  * __multa3:                              Fixed-point fractional library routines.
!                                                              (line  173)
  * __multc3:                              Soft float library routines.
!                                                              (line  243)
  * __multf3:                              Soft float library routines.
!                                                              (line   42)
  * __multi3:                              Integer library routines.
!                                                              (line   44)
  * __muluda3:                             Fixed-point fractional library routines.
!                                                              (line  179)
  * __muludq3:                             Fixed-point fractional library routines.
!                                                              (line  167)
  * __muluha3:                             Fixed-point fractional library routines.
!                                                              (line  175)
  * __muluhq3:                             Fixed-point fractional library routines.
!                                                              (line  163)
  * __muluqq3:                             Fixed-point fractional library routines.
!                                                              (line  161)
  * __mulusa3:                             Fixed-point fractional library routines.
!                                                              (line  177)
  * __mulusq3:                             Fixed-point fractional library routines.
!                                                              (line  165)
  * __muluta3:                             Fixed-point fractional library routines.
!                                                              (line  181)
  * __mulvdi3:                             Integer library routines.
-                                                              (line  115)
- * __mulvsi3:                             Integer library routines.
                                                               (line  114)
  * __mulxc3:                              Soft float library routines.
!                                                              (line  245)
  * __mulxf3:                              Soft float library routines.
!                                                              (line   44)
  * __nedf2:                               Soft float library routines.
!                                                              (line  200)
  * __negda2:                              Fixed-point fractional library routines.
!                                                              (line  299)
  * __negdf2:                              Soft float library routines.
!                                                              (line   56)
  * __negdi2:                              Integer library routines.
!                                                              (line   47)
  * __negdq2:                              Fixed-point fractional library routines.
!                                                              (line  289)
  * __negha2:                              Fixed-point fractional library routines.
!                                                              (line  297)
  * __neghq2:                              Fixed-point fractional library routines.
!                                                              (line  287)
  * __negqq2:                              Fixed-point fractional library routines.
!                                                              (line  286)
  * __negsa2:                              Fixed-point fractional library routines.
!                                                              (line  298)
  * __negsf2:                              Soft float library routines.
!                                                              (line   55)
  * __negsq2:                              Fixed-point fractional library routines.
!                                                              (line  288)
  * __negta2:                              Fixed-point fractional library routines.
!                                                              (line  300)
  * __negtf2:                              Soft float library routines.
!                                                              (line   57)
  * __negti2:                              Integer library routines.
!                                                              (line   48)
  * __neguda2:                             Fixed-point fractional library routines.
!                                                              (line  305)
  * __negudq2:                             Fixed-point fractional library routines.
-                                                              (line  296)
- * __neguha2:                             Fixed-point fractional library routines.
                                                               (line  302)
  * __neguhq2:                             Fixed-point fractional library routines.
!                                                              (line  292)
  * __neguqq2:                             Fixed-point fractional library routines.
!                                                              (line  291)
  * __negusa2:                             Fixed-point fractional library routines.
!                                                              (line  303)
  * __negusq2:                             Fixed-point fractional library routines.
!                                                              (line  294)
  * __neguta2:                             Fixed-point fractional library routines.
!                                                              (line  307)
  * __negvdi2:                             Integer library routines.
-                                                              (line  119)
- * __negvsi2:                             Integer library routines.
                                                               (line  118)
  * __negxf2:                              Soft float library routines.
!                                                              (line   58)
  * __nesf2:                               Soft float library routines.
!                                                              (line  199)
  * __netf2:                               Soft float library routines.
!                                                              (line  201)
  * __paritydi2:                           Integer library routines.
-                                                              (line  151)
- * __paritysi2:                           Integer library routines.
                                                               (line  150)
  * __parityti2:                           Integer library routines.
!                                                              (line  152)
  * __popcountdi2:                         Integer library routines.
-                                                              (line  157)
- * __popcountsi2:                         Integer library routines.
                                                               (line  156)
  * __popcountti2:                         Integer library routines.
!                                                              (line  158)
  * __powidf2:                             Soft float library routines.
-                                                              (line  233)
- * __powisf2:                             Soft float library routines.
                                                               (line  232)
  * __powitf2:                             Soft float library routines.
!                                                              (line  234)
  * __powixf2:                             Soft float library routines.
!                                                              (line  235)
  * __satfractdadq:                        Fixed-point fractional library routines.
!                                                              (line 1153)
  * __satfractdaha2:                       Fixed-point fractional library routines.
!                                                              (line 1154)
  * __satfractdahq:                        Fixed-point fractional library routines.
!                                                              (line 1151)
  * __satfractdaqq:                        Fixed-point fractional library routines.
!                                                              (line 1150)
  * __satfractdasa2:                       Fixed-point fractional library routines.
!                                                              (line 1155)
  * __satfractdasq:                        Fixed-point fractional library routines.
!                                                              (line 1152)
  * __satfractdata2:                       Fixed-point fractional library routines.
!                                                              (line 1156)
  * __satfractdauda:                       Fixed-point fractional library routines.
!                                                              (line 1166)
  * __satfractdaudq:                       Fixed-point fractional library routines.
!                                                              (line 1162)
  * __satfractdauha:                       Fixed-point fractional library routines.
!                                                              (line 1164)
  * __satfractdauhq:                       Fixed-point fractional library routines.
!                                                              (line 1159)
  * __satfractdauqq:                       Fixed-point fractional library routines.
!                                                              (line 1158)
  * __satfractdausa:                       Fixed-point fractional library routines.
!                                                              (line 1165)
  * __satfractdausq:                       Fixed-point fractional library routines.
!                                                              (line 1160)
  * __satfractdauta:                       Fixed-point fractional library routines.
!                                                              (line 1168)
  * __satfractdfda:                        Fixed-point fractional library routines.
!                                                              (line 1506)
  * __satfractdfdq:                        Fixed-point fractional library routines.
!                                                              (line 1503)
  * __satfractdfha:                        Fixed-point fractional library routines.
!                                                              (line 1504)
  * __satfractdfhq:                        Fixed-point fractional library routines.
!                                                              (line 1501)
  * __satfractdfqq:                        Fixed-point fractional library routines.
!                                                              (line 1500)
  * __satfractdfsa:                        Fixed-point fractional library routines.
!                                                              (line 1505)
  * __satfractdfsq:                        Fixed-point fractional library routines.
!                                                              (line 1502)
  * __satfractdfta:                        Fixed-point fractional library routines.
!                                                              (line 1507)
  * __satfractdfuda:                       Fixed-point fractional library routines.
!                                                              (line 1515)
  * __satfractdfudq:                       Fixed-point fractional library routines.
!                                                              (line 1512)
  * __satfractdfuha:                       Fixed-point fractional library routines.
!                                                              (line 1513)
  * __satfractdfuhq:                       Fixed-point fractional library routines.
!                                                              (line 1509)
  * __satfractdfuqq:                       Fixed-point fractional library routines.
!                                                              (line 1508)
  * __satfractdfusa:                       Fixed-point fractional library routines.
!                                                              (line 1514)
  * __satfractdfusq:                       Fixed-point fractional library routines.
-                                                              (line 1510)
- * __satfractdfuta:                       Fixed-point fractional library routines.
                                                               (line 1517)
  * __satfractdida:                        Fixed-point fractional library routines.
!                                                              (line 1456)
  * __satfractdidq:                        Fixed-point fractional library routines.
!                                                              (line 1453)
  * __satfractdiha:                        Fixed-point fractional library routines.
!                                                              (line 1454)
  * __satfractdihq:                        Fixed-point fractional library routines.
!                                                              (line 1451)
  * __satfractdiqq:                        Fixed-point fractional library routines.
!                                                              (line 1450)
  * __satfractdisa:                        Fixed-point fractional library routines.
!                                                              (line 1455)
  * __satfractdisq:                        Fixed-point fractional library routines.
!                                                              (line 1452)
  * __satfractdita:                        Fixed-point fractional library routines.
-                                                              (line 1457)
- * __satfractdiuda:                       Fixed-point fractional library routines.
                                                               (line 1464)
  * __satfractdiudq:                       Fixed-point fractional library routines.
!                                                              (line 1461)
  * __satfractdiuha:                       Fixed-point fractional library routines.
!                                                              (line 1462)
  * __satfractdiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1459)
  * __satfractdiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1458)
  * __satfractdiusa:                       Fixed-point fractional library routines.
!                                                              (line 1463)
  * __satfractdiusq:                       Fixed-point fractional library routines.
!                                                              (line 1460)
  * __satfractdiuta:                       Fixed-point fractional library routines.
!                                                              (line 1465)
  * __satfractdqda:                        Fixed-point fractional library routines.
!                                                              (line 1098)
  * __satfractdqha:                        Fixed-point fractional library routines.
!                                                              (line 1096)
  * __satfractdqhq2:                       Fixed-point fractional library routines.
!                                                              (line 1094)
  * __satfractdqqq2:                       Fixed-point fractional library routines.
!                                                              (line 1093)
  * __satfractdqsa:                        Fixed-point fractional library routines.
!                                                              (line 1097)
  * __satfractdqsq2:                       Fixed-point fractional library routines.
!                                                              (line 1095)
  * __satfractdqta:                        Fixed-point fractional library routines.
!                                                              (line 1099)
  * __satfractdquda:                       Fixed-point fractional library routines.
!                                                              (line 1111)
  * __satfractdqudq:                       Fixed-point fractional library routines.
!                                                              (line 1106)
  * __satfractdquha:                       Fixed-point fractional library routines.
!                                                              (line 1108)
  * __satfractdquhq:                       Fixed-point fractional library routines.
!                                                              (line 1102)
  * __satfractdquqq:                       Fixed-point fractional library routines.
!                                                              (line 1101)
  * __satfractdqusa:                       Fixed-point fractional library routines.
!                                                              (line 1109)
  * __satfractdqusq:                       Fixed-point fractional library routines.
!                                                              (line 1104)
  * __satfractdquta:                       Fixed-point fractional library routines.
-                                                              (line 1113)
- * __satfracthada2:                       Fixed-point fractional library routines.
                                                               (line 1119)
  * __satfracthadq:                        Fixed-point fractional library routines.
!                                                              (line 1117)
  * __satfracthahq:                        Fixed-point fractional library routines.
!                                                              (line 1115)
  * __satfracthaqq:                        Fixed-point fractional library routines.
!                                                              (line 1114)
  * __satfracthasa2:                       Fixed-point fractional library routines.
!                                                              (line 1118)
  * __satfracthasq:                        Fixed-point fractional library routines.
!                                                              (line 1116)
  * __satfracthata2:                       Fixed-point fractional library routines.
!                                                              (line 1120)
  * __satfracthauda:                       Fixed-point fractional library routines.
!                                                              (line 1132)
  * __satfracthaudq:                       Fixed-point fractional library routines.
!                                                              (line 1127)
  * __satfracthauha:                       Fixed-point fractional library routines.
!                                                              (line 1129)
  * __satfracthauhq:                       Fixed-point fractional library routines.
!                                                              (line 1123)
  * __satfracthauqq:                       Fixed-point fractional library routines.
!                                                              (line 1122)
  * __satfracthausa:                       Fixed-point fractional library routines.
!                                                              (line 1130)
  * __satfracthausq:                       Fixed-point fractional library routines.
!                                                              (line 1125)
  * __satfracthauta:                       Fixed-point fractional library routines.
!                                                              (line 1134)
  * __satfracthida:                        Fixed-point fractional library routines.
!                                                              (line 1424)
  * __satfracthidq:                        Fixed-point fractional library routines.
!                                                              (line 1421)
  * __satfracthiha:                        Fixed-point fractional library routines.
!                                                              (line 1422)
  * __satfracthihq:                        Fixed-point fractional library routines.
!                                                              (line 1419)
  * __satfracthiqq:                        Fixed-point fractional library routines.
!                                                              (line 1418)
  * __satfracthisa:                        Fixed-point fractional library routines.
!                                                              (line 1423)
  * __satfracthisq:                        Fixed-point fractional library routines.
!                                                              (line 1420)
  * __satfracthita:                        Fixed-point fractional library routines.
-                                                              (line 1425)
- * __satfracthiuda:                       Fixed-point fractional library routines.
                                                               (line 1432)
  * __satfracthiudq:                       Fixed-point fractional library routines.
!                                                              (line 1429)
  * __satfracthiuha:                       Fixed-point fractional library routines.
!                                                              (line 1430)
  * __satfracthiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1427)
  * __satfracthiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1426)
  * __satfracthiusa:                       Fixed-point fractional library routines.
!                                                              (line 1431)
  * __satfracthiusq:                       Fixed-point fractional library routines.
!                                                              (line 1428)
  * __satfracthiuta:                       Fixed-point fractional library routines.
!                                                              (line 1433)
  * __satfracthqda:                        Fixed-point fractional library routines.
!                                                              (line 1064)
  * __satfracthqdq2:                       Fixed-point fractional library routines.
!                                                              (line 1061)
  * __satfracthqha:                        Fixed-point fractional library routines.
!                                                              (line 1062)
  * __satfracthqqq2:                       Fixed-point fractional library routines.
!                                                              (line 1059)
  * __satfracthqsa:                        Fixed-point fractional library routines.
!                                                              (line 1063)
  * __satfracthqsq2:                       Fixed-point fractional library routines.
!                                                              (line 1060)
  * __satfracthqta:                        Fixed-point fractional library routines.
-                                                              (line 1065)
- * __satfracthquda:                       Fixed-point fractional library routines.
                                                               (line 1072)
  * __satfracthqudq:                       Fixed-point fractional library routines.
!                                                              (line 1069)
  * __satfracthquha:                       Fixed-point fractional library routines.
!                                                              (line 1070)
  * __satfracthquhq:                       Fixed-point fractional library routines.
!                                                              (line 1067)
  * __satfracthquqq:                       Fixed-point fractional library routines.
!                                                              (line 1066)
  * __satfracthqusa:                       Fixed-point fractional library routines.
!                                                              (line 1071)
  * __satfracthqusq:                       Fixed-point fractional library routines.
!                                                              (line 1068)
  * __satfracthquta:                       Fixed-point fractional library routines.
!                                                              (line 1073)
  * __satfractqida:                        Fixed-point fractional library routines.
!                                                              (line 1402)
  * __satfractqidq:                        Fixed-point fractional library routines.
!                                                              (line 1399)
  * __satfractqiha:                        Fixed-point fractional library routines.
!                                                              (line 1400)
  * __satfractqihq:                        Fixed-point fractional library routines.
!                                                              (line 1397)
  * __satfractqiqq:                        Fixed-point fractional library routines.
!                                                              (line 1396)
  * __satfractqisa:                        Fixed-point fractional library routines.
!                                                              (line 1401)
  * __satfractqisq:                        Fixed-point fractional library routines.
!                                                              (line 1398)
  * __satfractqita:                        Fixed-point fractional library routines.
!                                                              (line 1403)
  * __satfractqiuda:                       Fixed-point fractional library routines.
!                                                              (line 1415)
  * __satfractqiudq:                       Fixed-point fractional library routines.
!                                                              (line 1410)
  * __satfractqiuha:                       Fixed-point fractional library routines.
!                                                              (line 1412)
  * __satfractqiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1406)
  * __satfractqiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1405)
  * __satfractqiusa:                       Fixed-point fractional library routines.
!                                                              (line 1413)
  * __satfractqiusq:                       Fixed-point fractional library routines.
!                                                              (line 1408)
  * __satfractqiuta:                       Fixed-point fractional library routines.
!                                                              (line 1417)
  * __satfractqqda:                        Fixed-point fractional library routines.
!                                                              (line 1043)
  * __satfractqqdq2:                       Fixed-point fractional library routines.
!                                                              (line 1040)
  * __satfractqqha:                        Fixed-point fractional library routines.
!                                                              (line 1041)
  * __satfractqqhq2:                       Fixed-point fractional library routines.
!                                                              (line 1038)
  * __satfractqqsa:                        Fixed-point fractional library routines.
!                                                              (line 1042)
  * __satfractqqsq2:                       Fixed-point fractional library routines.
!                                                              (line 1039)
  * __satfractqqta:                        Fixed-point fractional library routines.
!                                                              (line 1044)
  * __satfractqquda:                       Fixed-point fractional library routines.
!                                                              (line 1056)
  * __satfractqqudq:                       Fixed-point fractional library routines.
!                                                              (line 1051)
  * __satfractqquha:                       Fixed-point fractional library routines.
!                                                              (line 1053)
  * __satfractqquhq:                       Fixed-point fractional library routines.
!                                                              (line 1047)
  * __satfractqquqq:                       Fixed-point fractional library routines.
!                                                              (line 1046)
  * __satfractqqusa:                       Fixed-point fractional library routines.
!                                                              (line 1054)
  * __satfractqqusq:                       Fixed-point fractional library routines.
!                                                              (line 1049)
  * __satfractqquta:                       Fixed-point fractional library routines.
!                                                              (line 1058)
  * __satfractsada2:                       Fixed-point fractional library routines.
!                                                              (line 1140)
  * __satfractsadq:                        Fixed-point fractional library routines.
!                                                              (line 1138)
  * __satfractsaha2:                       Fixed-point fractional library routines.
!                                                              (line 1139)
  * __satfractsahq:                        Fixed-point fractional library routines.
!                                                              (line 1136)
  * __satfractsaqq:                        Fixed-point fractional library routines.
!                                                              (line 1135)
  * __satfractsasq:                        Fixed-point fractional library routines.
!                                                              (line 1137)
  * __satfractsata2:                       Fixed-point fractional library routines.
-                                                              (line 1141)
- * __satfractsauda:                       Fixed-point fractional library routines.
                                                               (line 1148)
  * __satfractsaudq:                       Fixed-point fractional library routines.
!                                                              (line 1145)
  * __satfractsauha:                       Fixed-point fractional library routines.
!                                                              (line 1146)
  * __satfractsauhq:                       Fixed-point fractional library routines.
!                                                              (line 1143)
  * __satfractsauqq:                       Fixed-point fractional library routines.
!                                                              (line 1142)
  * __satfractsausa:                       Fixed-point fractional library routines.
!                                                              (line 1147)
  * __satfractsausq:                       Fixed-point fractional library routines.
!                                                              (line 1144)
  * __satfractsauta:                       Fixed-point fractional library routines.
!                                                              (line 1149)
  * __satfractsfda:                        Fixed-point fractional library routines.
!                                                              (line 1490)
  * __satfractsfdq:                        Fixed-point fractional library routines.
!                                                              (line 1487)
  * __satfractsfha:                        Fixed-point fractional library routines.
!                                                              (line 1488)
  * __satfractsfhq:                        Fixed-point fractional library routines.
!                                                              (line 1485)
  * __satfractsfqq:                        Fixed-point fractional library routines.
!                                                              (line 1484)
  * __satfractsfsa:                        Fixed-point fractional library routines.
!                                                              (line 1489)
  * __satfractsfsq:                        Fixed-point fractional library routines.
!                                                              (line 1486)
  * __satfractsfta:                        Fixed-point fractional library routines.
-                                                              (line 1491)
- * __satfractsfuda:                       Fixed-point fractional library routines.
                                                               (line 1498)
  * __satfractsfudq:                       Fixed-point fractional library routines.
!                                                              (line 1495)
  * __satfractsfuha:                       Fixed-point fractional library routines.
!                                                              (line 1496)
  * __satfractsfuhq:                       Fixed-point fractional library routines.
!                                                              (line 1493)
  * __satfractsfuqq:                       Fixed-point fractional library routines.
!                                                              (line 1492)
  * __satfractsfusa:                       Fixed-point fractional library routines.
!                                                              (line 1497)
  * __satfractsfusq:                       Fixed-point fractional library routines.
!                                                              (line 1494)
  * __satfractsfuta:                       Fixed-point fractional library routines.
!                                                              (line 1499)
  * __satfractsida:                        Fixed-point fractional library routines.
!                                                              (line 1440)
  * __satfractsidq:                        Fixed-point fractional library routines.
!                                                              (line 1437)
  * __satfractsiha:                        Fixed-point fractional library routines.
!                                                              (line 1438)
  * __satfractsihq:                        Fixed-point fractional library routines.
!                                                              (line 1435)
  * __satfractsiqq:                        Fixed-point fractional library routines.
!                                                              (line 1434)
  * __satfractsisa:                        Fixed-point fractional library routines.
!                                                              (line 1439)
  * __satfractsisq:                        Fixed-point fractional library routines.
!                                                              (line 1436)
  * __satfractsita:                        Fixed-point fractional library routines.
-                                                              (line 1441)
- * __satfractsiuda:                       Fixed-point fractional library routines.
                                                               (line 1448)
  * __satfractsiudq:                       Fixed-point fractional library routines.
!                                                              (line 1445)
  * __satfractsiuha:                       Fixed-point fractional library routines.
!                                                              (line 1446)
  * __satfractsiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1443)
  * __satfractsiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1442)
  * __satfractsiusa:                       Fixed-point fractional library routines.
!                                                              (line 1447)
  * __satfractsiusq:                       Fixed-point fractional library routines.
!                                                              (line 1444)
  * __satfractsiuta:                       Fixed-point fractional library routines.
!                                                              (line 1449)
  * __satfractsqda:                        Fixed-point fractional library routines.
!                                                              (line 1079)
  * __satfractsqdq2:                       Fixed-point fractional library routines.
!                                                              (line 1076)
  * __satfractsqha:                        Fixed-point fractional library routines.
!                                                              (line 1077)
  * __satfractsqhq2:                       Fixed-point fractional library routines.
!                                                              (line 1075)
  * __satfractsqqq2:                       Fixed-point fractional library routines.
!                                                              (line 1074)
  * __satfractsqsa:                        Fixed-point fractional library routines.
!                                                              (line 1078)
  * __satfractsqta:                        Fixed-point fractional library routines.
!                                                              (line 1080)
  * __satfractsquda:                       Fixed-point fractional library routines.
!                                                              (line 1090)
  * __satfractsqudq:                       Fixed-point fractional library routines.
!                                                              (line 1086)
  * __satfractsquha:                       Fixed-point fractional library routines.
!                                                              (line 1088)
  * __satfractsquhq:                       Fixed-point fractional library routines.
!                                                              (line 1083)
  * __satfractsquqq:                       Fixed-point fractional library routines.
!                                                              (line 1082)
  * __satfractsqusa:                       Fixed-point fractional library routines.
!                                                              (line 1089)
  * __satfractsqusq:                       Fixed-point fractional library routines.
!                                                              (line 1084)
  * __satfractsquta:                       Fixed-point fractional library routines.
!                                                              (line 1092)
  * __satfracttada2:                       Fixed-point fractional library routines.
!                                                              (line 1175)
  * __satfracttadq:                        Fixed-point fractional library routines.
!                                                              (line 1172)
  * __satfracttaha2:                       Fixed-point fractional library routines.
!                                                              (line 1173)
  * __satfracttahq:                        Fixed-point fractional library routines.
!                                                              (line 1170)
  * __satfracttaqq:                        Fixed-point fractional library routines.
!                                                              (line 1169)
  * __satfracttasa2:                       Fixed-point fractional library routines.
!                                                              (line 1174)
  * __satfracttasq:                        Fixed-point fractional library routines.
!                                                              (line 1171)
  * __satfracttauda:                       Fixed-point fractional library routines.
!                                                              (line 1187)
  * __satfracttaudq:                       Fixed-point fractional library routines.
!                                                              (line 1182)
  * __satfracttauha:                       Fixed-point fractional library routines.
!                                                              (line 1184)
  * __satfracttauhq:                       Fixed-point fractional library routines.
!                                                              (line 1178)
  * __satfracttauqq:                       Fixed-point fractional library routines.
!                                                              (line 1177)
  * __satfracttausa:                       Fixed-point fractional library routines.
!                                                              (line 1185)
  * __satfracttausq:                       Fixed-point fractional library routines.
!                                                              (line 1180)
  * __satfracttauta:                       Fixed-point fractional library routines.
!                                                              (line 1189)
  * __satfracttida:                        Fixed-point fractional library routines.
!                                                              (line 1472)
  * __satfracttidq:                        Fixed-point fractional library routines.
!                                                              (line 1469)
  * __satfracttiha:                        Fixed-point fractional library routines.
!                                                              (line 1470)
  * __satfracttihq:                        Fixed-point fractional library routines.
!                                                              (line 1467)
  * __satfracttiqq:                        Fixed-point fractional library routines.
!                                                              (line 1466)
  * __satfracttisa:                        Fixed-point fractional library routines.
!                                                              (line 1471)
  * __satfracttisq:                        Fixed-point fractional library routines.
!                                                              (line 1468)
  * __satfracttita:                        Fixed-point fractional library routines.
!                                                              (line 1473)
  * __satfracttiuda:                       Fixed-point fractional library routines.
!                                                              (line 1481)
  * __satfracttiudq:                       Fixed-point fractional library routines.
!                                                              (line 1478)
  * __satfracttiuha:                       Fixed-point fractional library routines.
!                                                              (line 1479)
  * __satfracttiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1475)
  * __satfracttiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1474)
  * __satfracttiusa:                       Fixed-point fractional library routines.
!                                                              (line 1480)
  * __satfracttiusq:                       Fixed-point fractional library routines.
-                                                              (line 1476)
- * __satfracttiuta:                       Fixed-point fractional library routines.
                                                               (line 1483)
  * __satfractudada:                       Fixed-point fractional library routines.
!                                                              (line 1351)
  * __satfractudadq:                       Fixed-point fractional library routines.
!                                                              (line 1347)
  * __satfractudaha:                       Fixed-point fractional library routines.
!                                                              (line 1349)
  * __satfractudahq:                       Fixed-point fractional library routines.
!                                                              (line 1344)
  * __satfractudaqq:                       Fixed-point fractional library routines.
!                                                              (line 1343)
  * __satfractudasa:                       Fixed-point fractional library routines.
!                                                              (line 1350)
  * __satfractudasq:                       Fixed-point fractional library routines.
!                                                              (line 1345)
  * __satfractudata:                       Fixed-point fractional library routines.
!                                                              (line 1353)
  * __satfractudaudq:                      Fixed-point fractional library routines.
!                                                              (line 1361)
  * __satfractudauha2:                     Fixed-point fractional library routines.
!                                                              (line 1363)
  * __satfractudauhq:                      Fixed-point fractional library routines.
!                                                              (line 1357)
  * __satfractudauqq:                      Fixed-point fractional library routines.
!                                                              (line 1355)
  * __satfractudausa2:                     Fixed-point fractional library routines.
!                                                              (line 1365)
  * __satfractudausq:                      Fixed-point fractional library routines.
!                                                              (line 1359)
  * __satfractudauta2:                     Fixed-point fractional library routines.
!                                                              (line 1367)
  * __satfractudqda:                       Fixed-point fractional library routines.
!                                                              (line 1276)
  * __satfractudqdq:                       Fixed-point fractional library routines.
!                                                              (line 1271)
  * __satfractudqha:                       Fixed-point fractional library routines.
!                                                              (line 1273)
  * __satfractudqhq:                       Fixed-point fractional library routines.
!                                                              (line 1267)
  * __satfractudqqq:                       Fixed-point fractional library routines.
!                                                              (line 1266)
  * __satfractudqsa:                       Fixed-point fractional library routines.
!                                                              (line 1274)
  * __satfractudqsq:                       Fixed-point fractional library routines.
!                                                              (line 1269)
  * __satfractudqta:                       Fixed-point fractional library routines.
!                                                              (line 1278)
  * __satfractudquda:                      Fixed-point fractional library routines.
!                                                              (line 1290)
  * __satfractudquha:                      Fixed-point fractional library routines.
!                                                              (line 1286)
  * __satfractudquhq2:                     Fixed-point fractional library routines.
!                                                              (line 1282)
  * __satfractudquqq2:                     Fixed-point fractional library routines.
!                                                              (line 1280)
  * __satfractudqusa:                      Fixed-point fractional library routines.
!                                                              (line 1288)
  * __satfractudqusq2:                     Fixed-point fractional library routines.
!                                                              (line 1284)
  * __satfractudquta:                      Fixed-point fractional library routines.
!                                                              (line 1292)
  * __satfractuhada:                       Fixed-point fractional library routines.
!                                                              (line 1304)
  * __satfractuhadq:                       Fixed-point fractional library routines.
!                                                              (line 1299)
  * __satfractuhaha:                       Fixed-point fractional library routines.
!                                                              (line 1301)
  * __satfractuhahq:                       Fixed-point fractional library routines.
!                                                              (line 1295)
  * __satfractuhaqq:                       Fixed-point fractional library routines.
!                                                              (line 1294)
  * __satfractuhasa:                       Fixed-point fractional library routines.
!                                                              (line 1302)
  * __satfractuhasq:                       Fixed-point fractional library routines.
!                                                              (line 1297)
  * __satfractuhata:                       Fixed-point fractional library routines.
!                                                              (line 1306)
  * __satfractuhauda2:                     Fixed-point fractional library routines.
!                                                              (line 1318)
  * __satfractuhaudq:                      Fixed-point fractional library routines.
!                                                              (line 1314)
  * __satfractuhauhq:                      Fixed-point fractional library routines.
!                                                              (line 1310)
  * __satfractuhauqq:                      Fixed-point fractional library routines.
!                                                              (line 1308)
  * __satfractuhausa2:                     Fixed-point fractional library routines.
!                                                              (line 1316)
  * __satfractuhausq:                      Fixed-point fractional library routines.
!                                                              (line 1312)
  * __satfractuhauta2:                     Fixed-point fractional library routines.
!                                                              (line 1320)
  * __satfractuhqda:                       Fixed-point fractional library routines.
!                                                              (line 1224)
  * __satfractuhqdq:                       Fixed-point fractional library routines.
!                                                              (line 1221)
  * __satfractuhqha:                       Fixed-point fractional library routines.
!                                                              (line 1222)
  * __satfractuhqhq:                       Fixed-point fractional library routines.
!                                                              (line 1219)
  * __satfractuhqqq:                       Fixed-point fractional library routines.
!                                                              (line 1218)
  * __satfractuhqsa:                       Fixed-point fractional library routines.
!                                                              (line 1223)
  * __satfractuhqsq:                       Fixed-point fractional library routines.
!                                                              (line 1220)
  * __satfractuhqta:                       Fixed-point fractional library routines.
!                                                              (line 1225)
  * __satfractuhquda:                      Fixed-point fractional library routines.
!                                                              (line 1236)
  * __satfractuhqudq2:                     Fixed-point fractional library routines.
!                                                              (line 1231)
  * __satfractuhquha:                      Fixed-point fractional library routines.
!                                                              (line 1233)
  * __satfractuhquqq2:                     Fixed-point fractional library routines.
!                                                              (line 1227)
  * __satfractuhqusa:                      Fixed-point fractional library routines.
!                                                              (line 1234)
  * __satfractuhqusq2:                     Fixed-point fractional library routines.
!                                                              (line 1229)
  * __satfractuhquta:                      Fixed-point fractional library routines.
!                                                              (line 1238)
  * __satfractunsdida:                     Fixed-point fractional library routines.
!                                                              (line 1834)
  * __satfractunsdidq:                     Fixed-point fractional library routines.
!                                                              (line 1831)
  * __satfractunsdiha:                     Fixed-point fractional library routines.
!                                                              (line 1832)
  * __satfractunsdihq:                     Fixed-point fractional library routines.
!                                                              (line 1828)
  * __satfractunsdiqq:                     Fixed-point fractional library routines.
!                                                              (line 1827)
  * __satfractunsdisa:                     Fixed-point fractional library routines.
!                                                              (line 1833)
  * __satfractunsdisq:                     Fixed-point fractional library routines.
-                                                              (line 1829)
- * __satfractunsdita:                     Fixed-point fractional library routines.
                                                               (line 1836)
  * __satfractunsdiuda:                    Fixed-point fractional library routines.
!                                                              (line 1850)
  * __satfractunsdiudq:                    Fixed-point fractional library routines.
!                                                              (line 1844)
  * __satfractunsdiuha:                    Fixed-point fractional library routines.
!                                                              (line 1846)
  * __satfractunsdiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1840)
  * __satfractunsdiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1838)
  * __satfractunsdiusa:                    Fixed-point fractional library routines.
!                                                              (line 1848)
  * __satfractunsdiusq:                    Fixed-point fractional library routines.
!                                                              (line 1842)
  * __satfractunsdiuta:                    Fixed-point fractional library routines.
!                                                              (line 1852)
  * __satfractunshida:                     Fixed-point fractional library routines.
!                                                              (line 1786)
  * __satfractunshidq:                     Fixed-point fractional library routines.
!                                                              (line 1783)
  * __satfractunshiha:                     Fixed-point fractional library routines.
!                                                              (line 1784)
  * __satfractunshihq:                     Fixed-point fractional library routines.
!                                                              (line 1780)
  * __satfractunshiqq:                     Fixed-point fractional library routines.
!                                                              (line 1779)
  * __satfractunshisa:                     Fixed-point fractional library routines.
!                                                              (line 1785)
  * __satfractunshisq:                     Fixed-point fractional library routines.
-                                                              (line 1781)
- * __satfractunshita:                     Fixed-point fractional library routines.
                                                               (line 1788)
  * __satfractunshiuda:                    Fixed-point fractional library routines.
!                                                              (line 1802)
  * __satfractunshiudq:                    Fixed-point fractional library routines.
!                                                              (line 1796)
  * __satfractunshiuha:                    Fixed-point fractional library routines.
!                                                              (line 1798)
  * __satfractunshiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1792)
  * __satfractunshiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1790)
  * __satfractunshiusa:                    Fixed-point fractional library routines.
!                                                              (line 1800)
  * __satfractunshiusq:                    Fixed-point fractional library routines.
!                                                              (line 1794)
  * __satfractunshiuta:                    Fixed-point fractional library routines.
!                                                              (line 1804)
  * __satfractunsqida:                     Fixed-point fractional library routines.
!                                                              (line 1760)
  * __satfractunsqidq:                     Fixed-point fractional library routines.
!                                                              (line 1757)
  * __satfractunsqiha:                     Fixed-point fractional library routines.
!                                                              (line 1758)
  * __satfractunsqihq:                     Fixed-point fractional library routines.
!                                                              (line 1754)
  * __satfractunsqiqq:                     Fixed-point fractional library routines.
!                                                              (line 1753)
  * __satfractunsqisa:                     Fixed-point fractional library routines.
!                                                              (line 1759)
  * __satfractunsqisq:                     Fixed-point fractional library routines.
-                                                              (line 1755)
- * __satfractunsqita:                     Fixed-point fractional library routines.
                                                               (line 1762)
  * __satfractunsqiuda:                    Fixed-point fractional library routines.
!                                                              (line 1776)
  * __satfractunsqiudq:                    Fixed-point fractional library routines.
!                                                              (line 1770)
  * __satfractunsqiuha:                    Fixed-point fractional library routines.
!                                                              (line 1772)
  * __satfractunsqiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1766)
  * __satfractunsqiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1764)
  * __satfractunsqiusa:                    Fixed-point fractional library routines.
!                                                              (line 1774)
  * __satfractunsqiusq:                    Fixed-point fractional library routines.
!                                                              (line 1768)
  * __satfractunsqiuta:                    Fixed-point fractional library routines.
!                                                              (line 1778)
  * __satfractunssida:                     Fixed-point fractional library routines.
!                                                              (line 1811)
  * __satfractunssidq:                     Fixed-point fractional library routines.
!                                                              (line 1808)
  * __satfractunssiha:                     Fixed-point fractional library routines.
!                                                              (line 1809)
  * __satfractunssihq:                     Fixed-point fractional library routines.
!                                                              (line 1806)
  * __satfractunssiqq:                     Fixed-point fractional library routines.
!                                                              (line 1805)
  * __satfractunssisa:                     Fixed-point fractional library routines.
!                                                              (line 1810)
  * __satfractunssisq:                     Fixed-point fractional library routines.
!                                                              (line 1807)
  * __satfractunssita:                     Fixed-point fractional library routines.
!                                                              (line 1812)
  * __satfractunssiuda:                    Fixed-point fractional library routines.
!                                                              (line 1824)
  * __satfractunssiudq:                    Fixed-point fractional library routines.
!                                                              (line 1819)
  * __satfractunssiuha:                    Fixed-point fractional library routines.
!                                                              (line 1821)
  * __satfractunssiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1815)
  * __satfractunssiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1814)
  * __satfractunssiusa:                    Fixed-point fractional library routines.
!                                                              (line 1822)
  * __satfractunssiusq:                    Fixed-point fractional library routines.
!                                                              (line 1817)
  * __satfractunssiuta:                    Fixed-point fractional library routines.
!                                                              (line 1826)
  * __satfractunstida:                     Fixed-point fractional library routines.
!                                                              (line 1864)
  * __satfractunstidq:                     Fixed-point fractional library routines.
!                                                              (line 1859)
  * __satfractunstiha:                     Fixed-point fractional library routines.
!                                                              (line 1861)
  * __satfractunstihq:                     Fixed-point fractional library routines.
!                                                              (line 1855)
  * __satfractunstiqq:                     Fixed-point fractional library routines.
!                                                              (line 1854)
  * __satfractunstisa:                     Fixed-point fractional library routines.
!                                                              (line 1862)
  * __satfractunstisq:                     Fixed-point fractional library routines.
!                                                              (line 1857)
  * __satfractunstita:                     Fixed-point fractional library routines.
!                                                              (line 1866)
  * __satfractunstiuda:                    Fixed-point fractional library routines.
!                                                              (line 1880)
  * __satfractunstiudq:                    Fixed-point fractional library routines.
!                                                              (line 1874)
  * __satfractunstiuha:                    Fixed-point fractional library routines.
!                                                              (line 1876)
  * __satfractunstiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1870)
  * __satfractunstiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1868)
  * __satfractunstiusa:                    Fixed-point fractional library routines.
!                                                              (line 1878)
  * __satfractunstiusq:                    Fixed-point fractional library routines.
!                                                              (line 1872)
  * __satfractunstiuta:                    Fixed-point fractional library routines.
!                                                              (line 1882)
  * __satfractuqqda:                       Fixed-point fractional library routines.
!                                                              (line 1201)
  * __satfractuqqdq:                       Fixed-point fractional library routines.
!                                                              (line 1196)
  * __satfractuqqha:                       Fixed-point fractional library routines.
!                                                              (line 1198)
  * __satfractuqqhq:                       Fixed-point fractional library routines.
!                                                              (line 1192)
  * __satfractuqqqq:                       Fixed-point fractional library routines.
!                                                              (line 1191)
  * __satfractuqqsa:                       Fixed-point fractional library routines.
!                                                              (line 1199)
  * __satfractuqqsq:                       Fixed-point fractional library routines.
!                                                              (line 1194)
  * __satfractuqqta:                       Fixed-point fractional library routines.
!                                                              (line 1203)
  * __satfractuqquda:                      Fixed-point fractional library routines.
!                                                              (line 1215)
  * __satfractuqqudq2:                     Fixed-point fractional library routines.
!                                                              (line 1209)
  * __satfractuqquha:                      Fixed-point fractional library routines.
!                                                              (line 1211)
  * __satfractuqquhq2:                     Fixed-point fractional library routines.
!                                                              (line 1205)
  * __satfractuqqusa:                      Fixed-point fractional library routines.
!                                                              (line 1213)
  * __satfractuqqusq2:                     Fixed-point fractional library routines.
!                                                              (line 1207)
  * __satfractuqquta:                      Fixed-point fractional library routines.
!                                                              (line 1217)
  * __satfractusada:                       Fixed-point fractional library routines.
!                                                              (line 1327)
  * __satfractusadq:                       Fixed-point fractional library routines.
!                                                              (line 1324)
  * __satfractusaha:                       Fixed-point fractional library routines.
!                                                              (line 1325)
  * __satfractusahq:                       Fixed-point fractional library routines.
!                                                              (line 1322)
  * __satfractusaqq:                       Fixed-point fractional library routines.
!                                                              (line 1321)
  * __satfractusasa:                       Fixed-point fractional library routines.
!                                                              (line 1326)
  * __satfractusasq:                       Fixed-point fractional library routines.
!                                                              (line 1323)
  * __satfractusata:                       Fixed-point fractional library routines.
!                                                              (line 1328)
  * __satfractusauda2:                     Fixed-point fractional library routines.
!                                                              (line 1339)
  * __satfractusaudq:                      Fixed-point fractional library routines.
!                                                              (line 1335)
  * __satfractusauha2:                     Fixed-point fractional library routines.
!                                                              (line 1337)
  * __satfractusauhq:                      Fixed-point fractional library routines.
!                                                              (line 1331)
  * __satfractusauqq:                      Fixed-point fractional library routines.
!                                                              (line 1330)
  * __satfractusausq:                      Fixed-point fractional library routines.
!                                                              (line 1333)
  * __satfractusauta2:                     Fixed-point fractional library routines.
!                                                              (line 1341)
  * __satfractusqda:                       Fixed-point fractional library routines.
!                                                              (line 1248)
  * __satfractusqdq:                       Fixed-point fractional library routines.
!                                                              (line 1244)
  * __satfractusqha:                       Fixed-point fractional library routines.
!                                                              (line 1246)
  * __satfractusqhq:                       Fixed-point fractional library routines.
!                                                              (line 1241)
  * __satfractusqqq:                       Fixed-point fractional library routines.
!                                                              (line 1240)
  * __satfractusqsa:                       Fixed-point fractional library routines.
!                                                              (line 1247)
  * __satfractusqsq:                       Fixed-point fractional library routines.
!                                                              (line 1242)
  * __satfractusqta:                       Fixed-point fractional library routines.
!                                                              (line 1250)
  * __satfractusquda:                      Fixed-point fractional library routines.
!                                                              (line 1262)
  * __satfractusqudq2:                     Fixed-point fractional library routines.
!                                                              (line 1256)
  * __satfractusquha:                      Fixed-point fractional library routines.
!                                                              (line 1258)
  * __satfractusquhq2:                     Fixed-point fractional library routines.
!                                                              (line 1254)
  * __satfractusquqq2:                     Fixed-point fractional library routines.
!                                                              (line 1252)
  * __satfractusqusa:                      Fixed-point fractional library routines.
!                                                              (line 1260)
  * __satfractusquta:                      Fixed-point fractional library routines.
!                                                              (line 1264)
  * __satfractutada:                       Fixed-point fractional library routines.
!                                                              (line 1379)
  * __satfractutadq:                       Fixed-point fractional library routines.
!                                                              (line 1374)
  * __satfractutaha:                       Fixed-point fractional library routines.
!                                                              (line 1376)
  * __satfractutahq:                       Fixed-point fractional library routines.
!                                                              (line 1370)
  * __satfractutaqq:                       Fixed-point fractional library routines.
!                                                              (line 1369)
  * __satfractutasa:                       Fixed-point fractional library routines.
!                                                              (line 1377)
  * __satfractutasq:                       Fixed-point fractional library routines.
!                                                              (line 1372)
  * __satfractutata:                       Fixed-point fractional library routines.
!                                                              (line 1381)
  * __satfractutauda2:                     Fixed-point fractional library routines.
!                                                              (line 1395)
  * __satfractutaudq:                      Fixed-point fractional library routines.
!                                                              (line 1389)
  * __satfractutauha2:                     Fixed-point fractional library routines.
!                                                              (line 1391)
  * __satfractutauhq:                      Fixed-point fractional library routines.
!                                                              (line 1385)
  * __satfractutauqq:                      Fixed-point fractional library routines.
!                                                              (line 1383)
  * __satfractutausa2:                     Fixed-point fractional library routines.
!                                                              (line 1393)
  * __satfractutausq:                      Fixed-point fractional library routines.
!                                                              (line 1387)
  * __splitstack_find:                     Miscellaneous routines.
!                                                              (line   18)
  * __ssaddda3:                            Fixed-point fractional library routines.
!                                                              (line   67)
  * __ssadddq3:                            Fixed-point fractional library routines.
!                                                              (line   63)
  * __ssaddha3:                            Fixed-point fractional library routines.
!                                                              (line   65)
  * __ssaddhq3:                            Fixed-point fractional library routines.
!                                                              (line   60)
  * __ssaddqq3:                            Fixed-point fractional library routines.
!                                                              (line   59)
  * __ssaddsa3:                            Fixed-point fractional library routines.
!                                                              (line   66)
  * __ssaddsq3:                            Fixed-point fractional library routines.
!                                                              (line   61)
  * __ssaddta3:                            Fixed-point fractional library routines.
!                                                              (line   69)
  * __ssashlda3:                           Fixed-point fractional library routines.
!                                                              (line  402)
  * __ssashldq3:                           Fixed-point fractional library routines.
!                                                              (line  399)
  * __ssashlha3:                           Fixed-point fractional library routines.
!                                                              (line  400)
  * __ssashlhq3:                           Fixed-point fractional library routines.
!                                                              (line  396)
  * __ssashlsa3:                           Fixed-point fractional library routines.
!                                                              (line  401)
  * __ssashlsq3:                           Fixed-point fractional library routines.
-                                                              (line  397)
- * __ssashlta3:                           Fixed-point fractional library routines.
                                                               (line  404)
  * __ssdivda3:                            Fixed-point fractional library routines.
!                                                              (line  261)
  * __ssdivdq3:                            Fixed-point fractional library routines.
!                                                              (line  257)
  * __ssdivha3:                            Fixed-point fractional library routines.
!                                                              (line  259)
  * __ssdivhq3:                            Fixed-point fractional library routines.
!                                                              (line  254)
  * __ssdivqq3:                            Fixed-point fractional library routines.
!                                                              (line  253)
  * __ssdivsa3:                            Fixed-point fractional library routines.
!                                                              (line  260)
  * __ssdivsq3:                            Fixed-point fractional library routines.
!                                                              (line  255)
  * __ssdivta3:                            Fixed-point fractional library routines.
!                                                              (line  263)
  * __ssmulda3:                            Fixed-point fractional library routines.
!                                                              (line  193)
  * __ssmuldq3:                            Fixed-point fractional library routines.
!                                                              (line  189)
  * __ssmulha3:                            Fixed-point fractional library routines.
!                                                              (line  191)
  * __ssmulhq3:                            Fixed-point fractional library routines.
!                                                              (line  186)
  * __ssmulqq3:                            Fixed-point fractional library routines.
!                                                              (line  185)
  * __ssmulsa3:                            Fixed-point fractional library routines.
!                                                              (line  192)
  * __ssmulsq3:                            Fixed-point fractional library routines.
!                                                              (line  187)
  * __ssmulta3:                            Fixed-point fractional library routines.
!                                                              (line  195)
  * __ssnegda2:                            Fixed-point fractional library routines.
!                                                              (line  316)
  * __ssnegdq2:                            Fixed-point fractional library routines.
!                                                              (line  313)
  * __ssnegha2:                            Fixed-point fractional library routines.
!                                                              (line  314)
  * __ssneghq2:                            Fixed-point fractional library routines.
!                                                              (line  311)
  * __ssnegqq2:                            Fixed-point fractional library routines.
!                                                              (line  310)
  * __ssnegsa2:                            Fixed-point fractional library routines.
!                                                              (line  315)
  * __ssnegsq2:                            Fixed-point fractional library routines.
!                                                              (line  312)
  * __ssnegta2:                            Fixed-point fractional library routines.
!                                                              (line  317)
  * __sssubda3:                            Fixed-point fractional library routines.
!                                                              (line  129)
  * __sssubdq3:                            Fixed-point fractional library routines.
!                                                              (line  125)
  * __sssubha3:                            Fixed-point fractional library routines.
!                                                              (line  127)
  * __sssubhq3:                            Fixed-point fractional library routines.
!                                                              (line  122)
  * __sssubqq3:                            Fixed-point fractional library routines.
!                                                              (line  121)
  * __sssubsa3:                            Fixed-point fractional library routines.
!                                                              (line  128)
  * __sssubsq3:                            Fixed-point fractional library routines.
!                                                              (line  123)
  * __sssubta3:                            Fixed-point fractional library routines.
!                                                              (line  131)
  * __subda3:                              Fixed-point fractional library routines.
!                                                              (line  107)
  * __subdf3:                              Soft float library routines.
!                                                              (line   31)
  * __subdq3:                              Fixed-point fractional library routines.
!                                                              (line   95)
  * __subha3:                              Fixed-point fractional library routines.
!                                                              (line  105)
  * __subhq3:                              Fixed-point fractional library routines.
!                                                              (line   92)
  * __subqq3:                              Fixed-point fractional library routines.
!                                                              (line   91)
  * __subsa3:                              Fixed-point fractional library routines.
!                                                              (line  106)
  * __subsf3:                              Soft float library routines.
!                                                              (line   30)
  * __subsq3:                              Fixed-point fractional library routines.
!                                                              (line   93)
  * __subta3:                              Fixed-point fractional library routines.
!                                                              (line  109)
  * __subtf3:                              Soft float library routines.
!                                                              (line   33)
  * __subuda3:                             Fixed-point fractional library routines.
!                                                              (line  115)
  * __subudq3:                             Fixed-point fractional library routines.
!                                                              (line  103)
  * __subuha3:                             Fixed-point fractional library routines.
!                                                              (line  111)
  * __subuhq3:                             Fixed-point fractional library routines.
!                                                              (line   99)
  * __subuqq3:                             Fixed-point fractional library routines.
!                                                              (line   97)
  * __subusa3:                             Fixed-point fractional library routines.
!                                                              (line  113)
  * __subusq3:                             Fixed-point fractional library routines.
!                                                              (line  101)
  * __subuta3:                             Fixed-point fractional library routines.
-                                                              (line  117)
- * __subvdi3:                             Integer library routines.
                                                               (line  123)
! * __subvsi3:                             Integer library routines.
                                                               (line  122)
  * __subxf3:                              Soft float library routines.
!                                                              (line   35)
  * __truncdfsf2:                          Soft float library routines.
!                                                              (line   76)
  * __trunctfdf2:                          Soft float library routines.
!                                                              (line   73)
  * __trunctfsf2:                          Soft float library routines.
!                                                              (line   75)
  * __truncxfdf2:                          Soft float library routines.
!                                                              (line   72)
  * __truncxfsf2:                          Soft float library routines.
!                                                              (line   74)
  * __ucmpdi2:                             Integer library routines.
!                                                              (line   93)
  * __ucmpti2:                             Integer library routines.
!                                                              (line   95)
  * __udivdi3:                             Integer library routines.
!                                                              (line   54)
  * __udivmoddi4:                          Integer library routines.
!                                                              (line   61)
  * __udivmodti4:                          Integer library routines.
!                                                              (line   63)
  * __udivsi3:                             Integer library routines.
!                                                              (line   52)
  * __udivti3:                             Integer library routines.
!                                                              (line   56)
  * __udivuda3:                            Fixed-point fractional library routines.
!                                                              (line  246)
  * __udivudq3:                            Fixed-point fractional library routines.
!                                                              (line  240)
  * __udivuha3:                            Fixed-point fractional library routines.
!                                                              (line  242)
  * __udivuhq3:                            Fixed-point fractional library routines.
!                                                              (line  236)
  * __udivuqq3:                            Fixed-point fractional library routines.
!                                                              (line  234)
  * __udivusa3:                            Fixed-point fractional library routines.
!                                                              (line  244)
  * __udivusq3:                            Fixed-point fractional library routines.
!                                                              (line  238)
  * __udivuta3:                            Fixed-point fractional library routines.
!                                                              (line  248)
  * __umoddi3:                             Integer library routines.
-                                                              (line   71)
- * __umodsi3:                             Integer library routines.
                                                               (line   69)
  * __umodti3:                             Integer library routines.
!                                                              (line   73)
  * __unorddf2:                            Soft float library routines.
-                                                              (line  173)
- * __unordsf2:                            Soft float library routines.
                                                               (line  172)
  * __unordtf2:                            Soft float library routines.
!                                                              (line  174)
  * __usadduda3:                           Fixed-point fractional library routines.
!                                                              (line   85)
  * __usaddudq3:                           Fixed-point fractional library routines.
!                                                              (line   79)
  * __usadduha3:                           Fixed-point fractional library routines.
!                                                              (line   81)
  * __usadduhq3:                           Fixed-point fractional library routines.
!                                                              (line   75)
  * __usadduqq3:                           Fixed-point fractional library routines.
!                                                              (line   73)
  * __usaddusa3:                           Fixed-point fractional library routines.
!                                                              (line   83)
  * __usaddusq3:                           Fixed-point fractional library routines.
!                                                              (line   77)
  * __usadduta3:                           Fixed-point fractional library routines.
!                                                              (line   87)
  * __usashluda3:                          Fixed-point fractional library routines.
!                                                              (line  421)
  * __usashludq3:                          Fixed-point fractional library routines.
!                                                              (line  415)
  * __usashluha3:                          Fixed-point fractional library routines.
!                                                              (line  417)
  * __usashluhq3:                          Fixed-point fractional library routines.
!                                                              (line  411)
  * __usashluqq3:                          Fixed-point fractional library routines.
!                                                              (line  409)
  * __usashlusa3:                          Fixed-point fractional library routines.
!                                                              (line  419)
  * __usashlusq3:                          Fixed-point fractional library routines.
!                                                              (line  413)
  * __usashluta3:                          Fixed-point fractional library routines.
!                                                              (line  423)
  * __usdivuda3:                           Fixed-point fractional library routines.
!                                                              (line  280)
  * __usdivudq3:                           Fixed-point fractional library routines.
!                                                              (line  274)
  * __usdivuha3:                           Fixed-point fractional library routines.
!                                                              (line  276)
  * __usdivuhq3:                           Fixed-point fractional library routines.
!                                                              (line  270)
  * __usdivuqq3:                           Fixed-point fractional library routines.
!                                                              (line  268)
  * __usdivusa3:                           Fixed-point fractional library routines.
!                                                              (line  278)
  * __usdivusq3:                           Fixed-point fractional library routines.
!                                                              (line  272)
  * __usdivuta3:                           Fixed-point fractional library routines.
!                                                              (line  282)
  * __usmuluda3:                           Fixed-point fractional library routines.
!                                                              (line  212)
  * __usmuludq3:                           Fixed-point fractional library routines.
!                                                              (line  206)
  * __usmuluha3:                           Fixed-point fractional library routines.
!                                                              (line  208)
  * __usmuluhq3:                           Fixed-point fractional library routines.
!                                                              (line  202)
  * __usmuluqq3:                           Fixed-point fractional library routines.
!                                                              (line  200)
  * __usmulusa3:                           Fixed-point fractional library routines.
!                                                              (line  210)
  * __usmulusq3:                           Fixed-point fractional library routines.
!                                                              (line  204)
  * __usmuluta3:                           Fixed-point fractional library routines.
!                                                              (line  214)
  * __usneguda2:                           Fixed-point fractional library routines.
!                                                              (line  331)
  * __usnegudq2:                           Fixed-point fractional library routines.
!                                                              (line  326)
  * __usneguha2:                           Fixed-point fractional library routines.
!                                                              (line  328)
  * __usneguhq2:                           Fixed-point fractional library routines.
!                                                              (line  322)
  * __usneguqq2:                           Fixed-point fractional library routines.
!                                                              (line  321)
  * __usnegusa2:                           Fixed-point fractional library routines.
!                                                              (line  329)
  * __usnegusq2:                           Fixed-point fractional library routines.
!                                                              (line  324)
  * __usneguta2:                           Fixed-point fractional library routines.
!                                                              (line  333)
  * __ussubuda3:                           Fixed-point fractional library routines.
!                                                              (line  148)
  * __ussubudq3:                           Fixed-point fractional library routines.
!                                                              (line  142)
  * __ussubuha3:                           Fixed-point fractional library routines.
!                                                              (line  144)
  * __ussubuhq3:                           Fixed-point fractional library routines.
!                                                              (line  138)
  * __ussubuqq3:                           Fixed-point fractional library routines.
!                                                              (line  136)
  * __ussubusa3:                           Fixed-point fractional library routines.
!                                                              (line  146)
  * __ussubusq3:                           Fixed-point fractional library routines.
!                                                              (line  140)
  * __ussubuta3:                           Fixed-point fractional library routines.
!                                                              (line  150)
! * abort:                                 Portability.        (line   21)
! * abs:                                   Arithmetic.         (line  199)
! * abs and attributes:                    Expressions.        (line   85)
  * ABS_EXPR:                              Unary and Binary Expressions.
                                                               (line    6)
- * absence_set:                           Processor pipeline description.
-                                                              (line  224)
- * absM2 instruction pattern:             Standard Names.     (line  616)
- * absolute value:                        Arithmetic.         (line  199)
  * access to operands:                    Accessors.          (line    6)
  * access to special operands:            Special Accessors.  (line    6)
  * accessors:                             Accessors.          (line    6)
! * ACCUM_TYPE_SIZE:                       Type Layout.        (line   88)
! * ACCUMULATE_OUTGOING_ARGS:              Stack Arguments.    (line   49)
! * ACCUMULATE_OUTGOING_ARGS and stack frames: Function Entry. (line  135)
! * acosM2 instruction pattern:            Standard Names.     (line  703)
! * ADA_LONG_TYPE_SIZE:                    Type Layout.        (line   26)
  * Adding a new GIMPLE statement code:    Adding a new GIMPLE statement code.
                                                               (line    6)
! * ADDITIONAL_REGISTER_NAMES:             Instruction Output. (line   15)
! * addM3 instruction pattern:             Standard Names.     (line  299)
! * addMODEcc instruction pattern:         Standard Names.     (line 1272)
! * addptrM3 instruction pattern:          Standard Names.     (line  332)
! * addr_diff_vec:                         Side Effects.       (line  315)
  * addr_diff_vec, length of:              Insn Lengths.       (line   26)
  * ADDR_EXPR:                             Storage References. (line    6)
! * addr_vec:                              Side Effects.       (line  310)
  * addr_vec, length of:                   Insn Lengths.       (line   26)
! * address constraints:                   Simple Constraints. (line  164)
! * address_operand <1>:                   Simple Constraints. (line  168)
! * address_operand:                       Machine-Independent Predicates.
!                                                              (line   63)
! * addressing modes:                      Addressing Modes.   (line    6)
! * addvM4 instruction pattern:            Standard Names.     (line  315)
! * ADJUST_FIELD_ALIGN:                    Storage Layout.     (line  197)
  * ADJUST_INSN_LENGTH:                    Insn Lengths.       (line   41)
! * ADJUST_REG_ALLOC_ORDER:                Allocation Order.   (line   23)
  * aggregates as return values:           Aggregate Return.   (line    6)
  * alias:                                 Alias analysis.     (line    6)
  * ALL_REGS:                              Register Classes.   (line   17)
- * allocate_stack instruction pattern:    Standard Names.     (line 1603)
  * alternate entry points:                Insns.              (line  146)
  * anchored addresses:                    Anchored Addresses. (line    6)
! * and:                                   Arithmetic.         (line  157)
  * and and attributes:                    Expressions.        (line   50)
  * and, canonicalization of:              Insn Canonicalizations.
!                                                              (line   52)
! * andM3 instruction pattern:             Standard Names.     (line  305)
  * ANNOTATE_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
  * annotations:                           Annotations.        (line    6)
  * APPLY_RESULT_SIZE:                     Scalar Return.      (line  112)
! * ARG_POINTER_CFA_OFFSET:                Frame Layout.       (line  192)
! * ARG_POINTER_REGNUM:                    Frame Registers.    (line   41)
! * ARG_POINTER_REGNUM and virtual registers: Regs and Memory. (line   65)
! * arg_pointer_rtx:                       Frame Registers.    (line  104)
! * ARGS_GROW_DOWNWARD:                    Frame Layout.       (line   31)
  * argument passing:                      Interface.          (line   36)
  * arguments in registers:                Register Arguments. (line    6)
  * arguments on stack:                    Stack Arguments.    (line    6)
  * arithmetic library:                    Soft float library routines.
                                                               (line    6)
! * arithmetic shift:                      Arithmetic.         (line  172)
! * arithmetic shift with signed saturation: Arithmetic.       (line  172)
! * arithmetic shift with unsigned saturation: Arithmetic.     (line  172)
  * arithmetic, in RTL:                    Arithmetic.         (line    6)
! * ARITHMETIC_TYPE_P:                     Types for C++.      (line   61)
  * array:                                 Types.              (line    6)
  * ARRAY_RANGE_REF:                       Storage References. (line    6)
  * ARRAY_REF:                             Storage References. (line    6)
  * ARRAY_TYPE:                            Types.              (line    6)
! * AS_NEEDS_DASH_FOR_PIPED_INPUT:         Driver.             (line   89)
! * ashift:                                Arithmetic.         (line  172)
! * ashift and attributes:                 Expressions.        (line   85)
! * ashiftrt:                              Arithmetic.         (line  189)
! * ashiftrt and attributes:               Expressions.        (line   85)
! * ashlM3 instruction pattern:            Standard Names.     (line  585)
! * ashrM3 instruction pattern:            Standard Names.     (line  597)
! * asinM2 instruction pattern:            Standard Names.     (line  697)
! * ASM_APP_OFF:                           File Framework.     (line   78)
! * ASM_APP_ON:                            File Framework.     (line   71)
! * ASM_COMMENT_START:                     File Framework.     (line   66)
! * ASM_DECLARE_COLD_FUNCTION_NAME:        Label Output.       (line  139)
! * ASM_DECLARE_COLD_FUNCTION_SIZE:        Label Output.       (line  154)
! * ASM_DECLARE_FUNCTION_NAME:             Label Output.       (line  111)
! * ASM_DECLARE_FUNCTION_SIZE:             Label Output.       (line  126)
! * ASM_DECLARE_OBJECT_NAME:               Label Output.       (line  167)
! * ASM_DECLARE_REGISTER_GLOBAL:           Label Output.       (line  196)
! * ASM_FINAL_SPEC:                        Driver.             (line   82)
! * ASM_FINISH_DECLARE_OBJECT:             Label Output.       (line  204)
! * ASM_FORMAT_PRIVATE_NAME:               Label Output.       (line  430)
! * asm_fprintf:                           Instruction Output. (line  151)
! * ASM_FPRINTF_EXTENSIONS:                Instruction Output. (line  162)
! * ASM_GENERATE_INTERNAL_LABEL:           Label Output.       (line  414)
! * asm_input:                             Side Effects.       (line  297)
  * asm_input and /v:                      Flags.              (line   76)
! * ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX:     Exception Handling. (line   82)
! * ASM_NO_SKIP_IN_TEXT:                   Alignment Output.   (line   79)
! * asm_noperands:                         Insns.              (line  308)
  * asm_operands and /v:                   Flags.              (line   76)
  * asm_operands, RTL sharing:             Sharing.            (line   45)
  * asm_operands, usage:                   Assembler.          (line    6)
! * ASM_OUTPUT_ADDR_DIFF_ELT:              Dispatch Tables.    (line    9)
! * ASM_OUTPUT_ADDR_VEC_ELT:               Dispatch Tables.    (line   26)
! * ASM_OUTPUT_ALIGN:                      Alignment Output.   (line   86)
! * ASM_OUTPUT_ALIGN_WITH_NOP:             Alignment Output.   (line   91)
! * ASM_OUTPUT_ALIGNED_BSS:                Uninitialized Data. (line   46)
! * ASM_OUTPUT_ALIGNED_COMMON:             Uninitialized Data. (line   30)
! * ASM_OUTPUT_ALIGNED_DECL_COMMON:        Uninitialized Data. (line   38)
! * ASM_OUTPUT_ALIGNED_DECL_LOCAL:         Uninitialized Data. (line   91)
! * ASM_OUTPUT_ALIGNED_LOCAL:              Uninitialized Data. (line   83)
! * ASM_OUTPUT_ASCII:                      Data Output.        (line   55)
! * ASM_OUTPUT_CASE_END:                   Dispatch Tables.    (line   51)
! * ASM_OUTPUT_CASE_LABEL:                 Dispatch Tables.    (line   38)
! * ASM_OUTPUT_COMMON:                     Uninitialized Data. (line   10)
! * ASM_OUTPUT_DEBUG_LABEL:                Label Output.       (line  402)
! * ASM_OUTPUT_DEF:                        Label Output.       (line  451)
! * ASM_OUTPUT_DEF_FROM_DECLS:             Label Output.       (line  459)
! * ASM_OUTPUT_DWARF_DATAREL:              SDB and DWARF.      (line   98)
! * ASM_OUTPUT_DWARF_DELTA:                SDB and DWARF.      (line   78)
! * ASM_OUTPUT_DWARF_OFFSET:               SDB and DWARF.      (line   87)
! * ASM_OUTPUT_DWARF_PCREL:                SDB and DWARF.      (line   93)
! * ASM_OUTPUT_DWARF_TABLE_REF:            SDB and DWARF.      (line  103)
! * ASM_OUTPUT_DWARF_VMS_DELTA:            SDB and DWARF.      (line   82)
! * ASM_OUTPUT_EXTERNAL:                   Label Output.       (line  331)
! * ASM_OUTPUT_FDESC:                      Data Output.        (line   64)
! * ASM_OUTPUT_FUNCTION_LABEL:             Label Output.       (line   17)
! * ASM_OUTPUT_INTERNAL_LABEL:             Label Output.       (line   29)
! * ASM_OUTPUT_LABEL:                      Label Output.       (line    9)
! * ASM_OUTPUT_LABEL_REF:                  Label Output.       (line  375)
! * ASM_OUTPUT_LABELREF:                   Label Output.       (line  353)
! * ASM_OUTPUT_LOCAL:                      Uninitialized Data. (line   70)
! * ASM_OUTPUT_MAX_SKIP_ALIGN:             Alignment Output.   (line   95)
! * ASM_OUTPUT_MEASURED_SIZE:              Label Output.       (line   53)
! * ASM_OUTPUT_OPCODE:                     Instruction Output. (line   36)
! * ASM_OUTPUT_POOL_EPILOGUE:              Data Output.        (line  114)
! * ASM_OUTPUT_POOL_PROLOGUE:              Data Output.        (line   77)
! * ASM_OUTPUT_REG_POP:                    Instruction Output. (line  208)
! * ASM_OUTPUT_REG_PUSH:                   Instruction Output. (line  203)
! * ASM_OUTPUT_SIZE_DIRECTIVE:             Label Output.       (line   47)
! * ASM_OUTPUT_SKIP:                       Alignment Output.   (line   73)
! * ASM_OUTPUT_SOURCE_FILENAME:            File Framework.     (line   85)
! * ASM_OUTPUT_SPECIAL_POOL_ENTRY:         Data Output.        (line   89)
! * ASM_OUTPUT_SYMBOL_REF:                 Label Output.       (line  368)
! * ASM_OUTPUT_TYPE_DIRECTIVE:             Label Output.       (line  101)
! * ASM_OUTPUT_WEAK_ALIAS:                 Label Output.       (line  477)
! * ASM_OUTPUT_WEAKREF:                    Label Output.       (line  263)
! * ASM_PREFERRED_EH_DATA_FORMAT:          Exception Handling. (line   67)
! * ASM_SPEC:                              Driver.             (line   74)
! * ASM_STABD_OP:                          DBX Options.        (line   36)
! * ASM_STABN_OP:                          DBX Options.        (line   43)
! * ASM_STABS_OP:                          DBX Options.        (line   29)
! * ASM_WEAKEN_DECL:                       Label Output.       (line  255)
! * ASM_WEAKEN_LABEL:                      Label Output.       (line  242)
! * assemble_name:                         Label Output.       (line    8)
! * assemble_name_raw:                     Label Output.       (line   28)
  * assembler format:                      File Framework.     (line    6)
  * assembler instructions in RTL:         Assembler.          (line    6)
! * ASSEMBLER_DIALECT:                     Instruction Output. (line  174)
  * assigning attribute values to insns:   Tagging Insns.      (line    6)
! * ASSUME_EXTENDED_UNWIND_CONTEXT:        Frame Registers.    (line  164)
  * asterisk in template:                  Output Statement.   (line   29)
! * atan2M3 instruction pattern:           Standard Names.     (line  798)
! * atanM2 instruction pattern:            Standard Names.     (line  709)
! * atomic:                                GTY Options.        (line  188)
! * atomic_add_fetchMODE instruction pattern: Standard Names.  (line 2036)
! * atomic_addMODE instruction pattern:    Standard Names.     (line 2007)
! * atomic_and_fetchMODE instruction pattern: Standard Names.  (line 2036)
! * atomic_andMODE instruction pattern:    Standard Names.     (line 2007)
  * atomic_compare_and_swapMODE instruction pattern: Standard Names.
!                                                              (line 1943)
! * atomic_exchangeMODE instruction pattern: Standard Names.   (line 1995)
! * atomic_fetch_addMODE instruction pattern: Standard Names.  (line 2021)
! * atomic_fetch_andMODE instruction pattern: Standard Names.  (line 2021)
! * atomic_fetch_nandMODE instruction pattern: Standard Names. (line 2021)
! * atomic_fetch_orMODE instruction pattern: Standard Names.   (line 2021)
! * atomic_fetch_subMODE instruction pattern: Standard Names.  (line 2021)
! * atomic_fetch_xorMODE instruction pattern: Standard Names.  (line 2021)
! * atomic_loadMODE instruction pattern:   Standard Names.     (line 1974)
! * atomic_nand_fetchMODE instruction pattern: Standard Names. (line 2036)
! * atomic_nandMODE instruction pattern:   Standard Names.     (line 2007)
! * atomic_or_fetchMODE instruction pattern: Standard Names.   (line 2036)
! * atomic_orMODE instruction pattern:     Standard Names.     (line 2007)
! * atomic_storeMODE instruction pattern:  Standard Names.     (line 1984)
! * atomic_sub_fetchMODE instruction pattern: Standard Names.  (line 2036)
! * atomic_subMODE instruction pattern:    Standard Names.     (line 2007)
! * atomic_test_and_set instruction pattern: Standard Names.   (line 2053)
! * atomic_xor_fetchMODE instruction pattern: Standard Names.  (line 2036)
! * atomic_xorMODE instruction pattern:    Standard Names.     (line 2007)
  * attr <1>:                              Tagging Insns.      (line   54)
- * attr:                                  Expressions.        (line  165)
- * attr_flag:                             Expressions.        (line  140)
  * attribute expressions:                 Expressions.        (line    6)
  * attribute specifications:              Attr Example.       (line    6)
  * attribute specifications example:      Attr Example.       (line    6)
- * ATTRIBUTE_ALIGNED_VALUE:               Storage Layout.     (line  179)
  * attributes:                            Attributes.         (line    6)
  * attributes, defining:                  Defining Attributes.
                                                               (line    6)
  * attributes, target-specific:           Target Attributes.  (line    6)
! * autoincrement addressing, availability: Portability.       (line   21)
  * autoincrement/decrement addressing:    Simple Constraints. (line   30)
  * automata_option:                       Processor pipeline description.
!                                                              (line  305)
  * automaton based pipeline description:  Processor pipeline description.
                                                               (line    6)
  * automaton based scheduler:             Processor pipeline description.
                                                               (line    6)
  * AVOID_CCMODE_COPIES:                   Values in Registers.
!                                                              (line  153)
  * backslash:                             Output Template.    (line   46)
! * barrier:                               Insns.              (line  177)
  * barrier and /f:                        Flags.              (line  107)
  * barrier and /v:                        Flags.              (line   44)
! * BASE_REG_CLASS:                        Register Classes.   (line  114)
  * basic block:                           Basic Blocks.       (line    6)
  * Basic Statements:                      Basic Statements.   (line    6)
  * basic-block.h:                         Control Flow.       (line    6)
- * BASIC_BLOCK:                           Basic Blocks.       (line   14)
  * basic_block:                           Basic Blocks.       (line    6)
  * BB_HEAD, BB_END:                       Maintaining the CFG.
!                                                              (line   77)
! * bb_seq:                                GIMPLE sequences.   (line   73)
! * BIGGEST_ALIGNMENT:                     Storage Layout.     (line  164)
! * BIGGEST_FIELD_ALIGNMENT:               Storage Layout.     (line  190)
  * BImode:                                Machine Modes.      (line   22)
  * BIND_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * BINFO_TYPE:                            Classes.            (line    6)
  * bit-fields:                            Bit-Fields.         (line    6)
  * BIT_AND_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
  * BIT_IOR_EXPR:                          Unary and Binary Expressions.
--- 44003,47543 ----
  * /s in RTL dump:                        Flags.              (line  245)
  * /u in RTL dump:                        Flags.              (line  296)
  * /v in RTL dump:                        Flags.              (line  328)
! * 0 in constraint:                       Simple Constraints. (line  128)
! * < in constraint:                       Simple Constraints. (line   47)
  * = in constraint:                       Modifiers.          (line    8)
! * > in constraint:                       Simple Constraints. (line   59)
  * ? in constraint:                       Multi-Alternative.  (line   42)
  * \:                                     Output Template.    (line   46)
  * ^ in constraint:                       Multi-Alternative.  (line   53)
  * __absvdi2:                             Integer library routines.
                                                               (line  106)
+ * __absvsi2:                             Integer library routines.
+                                                              (line  105)
  * __addda3:                              Fixed-point fractional library routines.
!                                                              (line   52)
  * __adddf3:                              Soft float library routines.
!                                                              (line   22)
  * __adddq3:                              Fixed-point fractional library routines.
!                                                              (line   39)
  * __addha3:                              Fixed-point fractional library routines.
!                                                              (line   49)
  * __addhq3:                              Fixed-point fractional library routines.
!                                                              (line   37)
  * __addqq3:                              Fixed-point fractional library routines.
!                                                              (line   35)
  * __addsa3:                              Fixed-point fractional library routines.
!                                                              (line   51)
  * __addsf3:                              Soft float library routines.
!                                                              (line   21)
  * __addsq3:                              Fixed-point fractional library routines.
!                                                              (line   38)
  * __addta3:                              Fixed-point fractional library routines.
!                                                              (line   53)
  * __addtf3:                              Soft float library routines.
!                                                              (line   23)
  * __adduda3:                             Fixed-point fractional library routines.
!                                                              (line   59)
  * __addudq3:                             Fixed-point fractional library routines.
!                                                              (line   47)
  * __adduha3:                             Fixed-point fractional library routines.
!                                                              (line   55)
  * __adduhq3:                             Fixed-point fractional library routines.
!                                                              (line   43)
  * __adduqq3:                             Fixed-point fractional library routines.
!                                                              (line   41)
  * __addusa3:                             Fixed-point fractional library routines.
!                                                              (line   57)
  * __addusq3:                             Fixed-point fractional library routines.
!                                                              (line   45)
  * __adduta3:                             Fixed-point fractional library routines.
!                                                              (line   61)
  * __addvdi3:                             Integer library routines.
                                                               (line  110)
+ * __addvsi3:                             Integer library routines.
+                                                              (line  109)
  * __addxf3:                              Soft float library routines.
!                                                              (line   25)
  * __ashlda3:                             Fixed-point fractional library routines.
!                                                              (line  358)
  * __ashldi3:                             Integer library routines.
!                                                              (line   13)
  * __ashldq3:                             Fixed-point fractional library routines.
!                                                              (line  346)
  * __ashlha3:                             Fixed-point fractional library routines.
!                                                              (line  356)
  * __ashlhq3:                             Fixed-point fractional library routines.
!                                                              (line  344)
  * __ashlqq3:                             Fixed-point fractional library routines.
!                                                              (line  343)
  * __ashlsa3:                             Fixed-point fractional library routines.
!                                                              (line  357)
  * __ashlsi3:                             Integer library routines.
!                                                              (line   12)
  * __ashlsq3:                             Fixed-point fractional library routines.
!                                                              (line  345)
  * __ashlta3:                             Fixed-point fractional library routines.
!                                                              (line  359)
  * __ashlti3:                             Integer library routines.
!                                                              (line   14)
  * __ashluda3:                            Fixed-point fractional library routines.
!                                                              (line  365)
  * __ashludq3:                            Fixed-point fractional library routines.
!                                                              (line  354)
  * __ashluha3:                            Fixed-point fractional library routines.
!                                                              (line  361)
  * __ashluhq3:                            Fixed-point fractional library routines.
!                                                              (line  350)
  * __ashluqq3:                            Fixed-point fractional library routines.
!                                                              (line  348)
  * __ashlusa3:                            Fixed-point fractional library routines.
!                                                              (line  363)
  * __ashlusq3:                            Fixed-point fractional library routines.
!                                                              (line  352)
  * __ashluta3:                            Fixed-point fractional library routines.
!                                                              (line  367)
  * __ashrda3:                             Fixed-point fractional library routines.
!                                                              (line  378)
  * __ashrdi3:                             Integer library routines.
!                                                              (line   18)
  * __ashrdq3:                             Fixed-point fractional library routines.
!                                                              (line  374)
  * __ashrha3:                             Fixed-point fractional library routines.
!                                                              (line  376)
  * __ashrhq3:                             Fixed-point fractional library routines.
!                                                              (line  372)
  * __ashrqq3:                             Fixed-point fractional library routines.
!                                                              (line  371)
  * __ashrsa3:                             Fixed-point fractional library routines.
!                                                              (line  377)
  * __ashrsi3:                             Integer library routines.
!                                                              (line   17)
  * __ashrsq3:                             Fixed-point fractional library routines.
                                                               (line  373)
+ * __ashrta3:                             Fixed-point fractional library routines.
+                                                              (line  379)
  * __ashrti3:                             Integer library routines.
!                                                              (line   19)
  * __bid_adddd3:                          Decimal float library routines.
!                                                              (line   23)
  * __bid_addsd3:                          Decimal float library routines.
!                                                              (line   19)
  * __bid_addtd3:                          Decimal float library routines.
!                                                              (line   27)
  * __bid_divdd3:                          Decimal float library routines.
!                                                              (line   66)
  * __bid_divsd3:                          Decimal float library routines.
!                                                              (line   62)
  * __bid_divtd3:                          Decimal float library routines.
!                                                              (line   70)
  * __bid_eqdd2:                           Decimal float library routines.
!                                                              (line  258)
  * __bid_eqsd2:                           Decimal float library routines.
!                                                              (line  256)
  * __bid_eqtd2:                           Decimal float library routines.
!                                                              (line  260)
  * __bid_extendddtd2:                     Decimal float library routines.
!                                                              (line   91)
  * __bid_extendddtf:                      Decimal float library routines.
!                                                              (line  139)
  * __bid_extendddxf:                      Decimal float library routines.
!                                                              (line  133)
  * __bid_extenddfdd:                      Decimal float library routines.
!                                                              (line  146)
  * __bid_extenddftd:                      Decimal float library routines.
!                                                              (line  106)
  * __bid_extendsddd2:                     Decimal float library routines.
!                                                              (line   87)
  * __bid_extendsddf:                      Decimal float library routines.
!                                                              (line  127)
  * __bid_extendsdtd2:                     Decimal float library routines.
!                                                              (line   89)
  * __bid_extendsdtf:                      Decimal float library routines.
!                                                              (line  137)
  * __bid_extendsdxf:                      Decimal float library routines.
!                                                              (line  131)
  * __bid_extendsfdd:                      Decimal float library routines.
!                                                              (line  102)
  * __bid_extendsfsd:                      Decimal float library routines.
!                                                              (line  144)
  * __bid_extendsftd:                      Decimal float library routines.
!                                                              (line  104)
  * __bid_extendtftd:                      Decimal float library routines.
!                                                              (line  148)
  * __bid_extendxftd:                      Decimal float library routines.
!                                                              (line  108)
  * __bid_fixdddi:                         Decimal float library routines.
!                                                              (line  169)
  * __bid_fixddsi:                         Decimal float library routines.
!                                                              (line  161)
  * __bid_fixsddi:                         Decimal float library routines.
!                                                              (line  167)
  * __bid_fixsdsi:                         Decimal float library routines.
!                                                              (line  159)
  * __bid_fixtddi:                         Decimal float library routines.
!                                                              (line  171)
  * __bid_fixtdsi:                         Decimal float library routines.
!                                                              (line  163)
  * __bid_fixunsdddi:                      Decimal float library routines.
!                                                              (line  186)
  * __bid_fixunsddsi:                      Decimal float library routines.
!                                                              (line  177)
  * __bid_fixunssddi:                      Decimal float library routines.
!                                                              (line  184)
  * __bid_fixunssdsi:                      Decimal float library routines.
!                                                              (line  175)
  * __bid_fixunstddi:                      Decimal float library routines.
!                                                              (line  188)
  * __bid_fixunstdsi:                      Decimal float library routines.
!                                                              (line  179)
  * __bid_floatdidd:                       Decimal float library routines.
!                                                              (line  204)
  * __bid_floatdisd:                       Decimal float library routines.
!                                                              (line  202)
  * __bid_floatditd:                       Decimal float library routines.
!                                                              (line  206)
  * __bid_floatsidd:                       Decimal float library routines.
!                                                              (line  195)
  * __bid_floatsisd:                       Decimal float library routines.
!                                                              (line  193)
  * __bid_floatsitd:                       Decimal float library routines.
!                                                              (line  197)
  * __bid_floatunsdidd:                    Decimal float library routines.
!                                                              (line  222)
  * __bid_floatunsdisd:                    Decimal float library routines.
!                                                              (line  220)
  * __bid_floatunsditd:                    Decimal float library routines.
!                                                              (line  224)
  * __bid_floatunssidd:                    Decimal float library routines.
!                                                              (line  213)
  * __bid_floatunssisd:                    Decimal float library routines.
!                                                              (line  211)
  * __bid_floatunssitd:                    Decimal float library routines.
!                                                              (line  215)
  * __bid_gedd2:                           Decimal float library routines.
!                                                              (line  276)
  * __bid_gesd2:                           Decimal float library routines.
!                                                              (line  274)
  * __bid_getd2:                           Decimal float library routines.
!                                                              (line  278)
  * __bid_gtdd2:                           Decimal float library routines.
!                                                              (line  303)
  * __bid_gtsd2:                           Decimal float library routines.
!                                                              (line  301)
  * __bid_gttd2:                           Decimal float library routines.
!                                                              (line  305)
  * __bid_ledd2:                           Decimal float library routines.
!                                                              (line  294)
  * __bid_lesd2:                           Decimal float library routines.
!                                                              (line  292)
  * __bid_letd2:                           Decimal float library routines.
!                                                              (line  296)
  * __bid_ltdd2:                           Decimal float library routines.
!                                                              (line  285)
  * __bid_ltsd2:                           Decimal float library routines.
!                                                              (line  283)
  * __bid_lttd2:                           Decimal float library routines.
!                                                              (line  287)
  * __bid_muldd3:                          Decimal float library routines.
!                                                              (line   52)
  * __bid_mulsd3:                          Decimal float library routines.
!                                                              (line   48)
  * __bid_multd3:                          Decimal float library routines.
!                                                              (line   56)
  * __bid_nedd2:                           Decimal float library routines.
!                                                              (line  267)
  * __bid_negdd2:                          Decimal float library routines.
!                                                              (line   77)
  * __bid_negsd2:                          Decimal float library routines.
!                                                              (line   75)
  * __bid_negtd2:                          Decimal float library routines.
!                                                              (line   79)
  * __bid_nesd2:                           Decimal float library routines.
!                                                              (line  265)
  * __bid_netd2:                           Decimal float library routines.
!                                                              (line  269)
  * __bid_subdd3:                          Decimal float library routines.
!                                                              (line   37)
  * __bid_subsd3:                          Decimal float library routines.
!                                                              (line   33)
  * __bid_subtd3:                          Decimal float library routines.
!                                                              (line   41)
  * __bid_truncdddf:                       Decimal float library routines.
!                                                              (line  152)
  * __bid_truncddsd2:                      Decimal float library routines.
!                                                              (line   93)
  * __bid_truncddsf:                       Decimal float library routines.
!                                                              (line  123)
  * __bid_truncdfsd:                       Decimal float library routines.
!                                                              (line  110)
  * __bid_truncsdsf:                       Decimal float library routines.
!                                                              (line  150)
  * __bid_trunctddd2:                      Decimal float library routines.
!                                                              (line   97)
  * __bid_trunctddf:                       Decimal float library routines.
!                                                              (line  129)
  * __bid_trunctdsd2:                      Decimal float library routines.
!                                                              (line   95)
  * __bid_trunctdsf:                       Decimal float library routines.
!                                                              (line  125)
  * __bid_trunctdtf:                       Decimal float library routines.
!                                                              (line  154)
  * __bid_trunctdxf:                       Decimal float library routines.
!                                                              (line  135)
  * __bid_trunctfdd:                       Decimal float library routines.
!                                                              (line  118)
  * __bid_trunctfsd:                       Decimal float library routines.
!                                                              (line  114)
  * __bid_truncxfdd:                       Decimal float library routines.
!                                                              (line  116)
  * __bid_truncxfsd:                       Decimal float library routines.
!                                                              (line  112)
  * __bid_unorddd2:                        Decimal float library routines.
!                                                              (line  234)
  * __bid_unordsd2:                        Decimal float library routines.
!                                                              (line  232)
  * __bid_unordtd2:                        Decimal float library routines.
!                                                              (line  236)
  * __bswapdi2:                            Integer library routines.
                                                               (line  161)
! * __bswapsi2:                            Integer library routines.
!                                                              (line  160)
! * __builtin_classify_type:               Varargs.            (line   48)
! * __builtin_next_arg:                    Varargs.            (line   39)
! * __builtin_saveregs:                    Varargs.            (line   22)
! * __chkp_bndcl:                          Misc.               (line  650)
! * __chkp_bndcu:                          Misc.               (line  656)
! * __chkp_bndldx:                         Misc.               (line  644)
! * __chkp_bndmk:                          Misc.               (line  631)
! * __chkp_bndret:                         Misc.               (line  662)
! * __chkp_bndstx:                         Misc.               (line  638)
! * __chkp_intersect:                      Misc.               (line  668)
! * __chkp_narrow:                         Misc.               (line  673)
! * __chkp_sizeof:                         Misc.               (line  679)
  * __clear_cache:                         Miscellaneous routines.
!                                                              (line    9)
  * __clzdi2:                              Integer library routines.
                                                               (line  130)
+ * __clzsi2:                              Integer library routines.
+                                                              (line  129)
  * __clzti2:                              Integer library routines.
!                                                              (line  131)
  * __cmpda2:                              Fixed-point fractional library routines.
!                                                              (line  458)
  * __cmpdf2:                              Soft float library routines.
!                                                              (line  163)
  * __cmpdi2:                              Integer library routines.
!                                                              (line   86)
  * __cmpdq2:                              Fixed-point fractional library routines.
!                                                              (line  447)
  * __cmpha2:                              Fixed-point fractional library routines.
!                                                              (line  456)
  * __cmphq2:                              Fixed-point fractional library routines.
!                                                              (line  445)
  * __cmpqq2:                              Fixed-point fractional library routines.
!                                                              (line  444)
  * __cmpsa2:                              Fixed-point fractional library routines.
!                                                              (line  457)
  * __cmpsf2:                              Soft float library routines.
!                                                              (line  162)
  * __cmpsq2:                              Fixed-point fractional library routines.
!                                                              (line  446)
  * __cmpta2:                              Fixed-point fractional library routines.
!                                                              (line  459)
  * __cmptf2:                              Soft float library routines.
!                                                              (line  164)
  * __cmpti2:                              Integer library routines.
!                                                              (line   87)
  * __cmpuda2:                             Fixed-point fractional library routines.
!                                                              (line  464)
  * __cmpudq2:                             Fixed-point fractional library routines.
!                                                              (line  454)
  * __cmpuha2:                             Fixed-point fractional library routines.
!                                                              (line  461)
  * __cmpuhq2:                             Fixed-point fractional library routines.
!                                                              (line  451)
  * __cmpuqq2:                             Fixed-point fractional library routines.
!                                                              (line  449)
  * __cmpusa2:                             Fixed-point fractional library routines.
!                                                              (line  463)
  * __cmpusq2:                             Fixed-point fractional library routines.
!                                                              (line  452)
  * __cmputa2:                             Fixed-point fractional library routines.
!                                                              (line  466)
  * __CTOR_LIST__:                         Initialization.     (line   25)
  * __ctzdi2:                              Integer library routines.
                                                               (line  137)
+ * __ctzsi2:                              Integer library routines.
+                                                              (line  136)
  * __ctzti2:                              Integer library routines.
!                                                              (line  138)
  * __divda3:                              Fixed-point fractional library routines.
!                                                              (line  234)
  * __divdc3:                              Soft float library routines.
!                                                              (line  250)
  * __divdf3:                              Soft float library routines.
!                                                              (line   47)
  * __divdi3:                              Integer library routines.
!                                                              (line   24)
  * __divdq3:                              Fixed-point fractional library routines.
!                                                              (line  229)
  * __divha3:                              Fixed-point fractional library routines.
!                                                              (line  231)
  * __divhq3:                              Fixed-point fractional library routines.
!                                                              (line  227)
  * __divqq3:                              Fixed-point fractional library routines.
!                                                              (line  225)
  * __divsa3:                              Fixed-point fractional library routines.
!                                                              (line  233)
  * __divsc3:                              Soft float library routines.
!                                                              (line  248)
  * __divsf3:                              Soft float library routines.
!                                                              (line   46)
  * __divsi3:                              Integer library routines.
!                                                              (line   23)
  * __divsq3:                              Fixed-point fractional library routines.
!                                                              (line  228)
  * __divta3:                              Fixed-point fractional library routines.
!                                                              (line  235)
  * __divtc3:                              Soft float library routines.
!                                                              (line  252)
  * __divtf3:                              Soft float library routines.
!                                                              (line   48)
  * __divti3:                              Integer library routines.
!                                                              (line   25)
  * __divxc3:                              Soft float library routines.
!                                                              (line  254)
  * __divxf3:                              Soft float library routines.
!                                                              (line   50)
  * __dpd_adddd3:                          Decimal float library routines.
!                                                              (line   21)
  * __dpd_addsd3:                          Decimal float library routines.
!                                                              (line   17)
  * __dpd_addtd3:                          Decimal float library routines.
!                                                              (line   25)
  * __dpd_divdd3:                          Decimal float library routines.
!                                                              (line   64)
  * __dpd_divsd3:                          Decimal float library routines.
!                                                              (line   60)
  * __dpd_divtd3:                          Decimal float library routines.
!                                                              (line   68)
  * __dpd_eqdd2:                           Decimal float library routines.
!                                                              (line  257)
  * __dpd_eqsd2:                           Decimal float library routines.
!                                                              (line  255)
  * __dpd_eqtd2:                           Decimal float library routines.
!                                                              (line  259)
  * __dpd_extendddtd2:                     Decimal float library routines.
!                                                              (line   90)
  * __dpd_extendddtf:                      Decimal float library routines.
!                                                              (line  138)
  * __dpd_extendddxf:                      Decimal float library routines.
!                                                              (line  132)
  * __dpd_extenddfdd:                      Decimal float library routines.
!                                                              (line  145)
  * __dpd_extenddftd:                      Decimal float library routines.
!                                                              (line  105)
  * __dpd_extendsddd2:                     Decimal float library routines.
!                                                              (line   86)
  * __dpd_extendsddf:                      Decimal float library routines.
!                                                              (line  126)
  * __dpd_extendsdtd2:                     Decimal float library routines.
!                                                              (line   88)
  * __dpd_extendsdtf:                      Decimal float library routines.
!                                                              (line  136)
  * __dpd_extendsdxf:                      Decimal float library routines.
!                                                              (line  130)
  * __dpd_extendsfdd:                      Decimal float library routines.
!                                                              (line  101)
  * __dpd_extendsfsd:                      Decimal float library routines.
!                                                              (line  143)
  * __dpd_extendsftd:                      Decimal float library routines.
!                                                              (line  103)
  * __dpd_extendtftd:                      Decimal float library routines.
!                                                              (line  147)
  * __dpd_extendxftd:                      Decimal float library routines.
!                                                              (line  107)
  * __dpd_fixdddi:                         Decimal float library routines.
!                                                              (line  168)
  * __dpd_fixddsi:                         Decimal float library routines.
!                                                              (line  160)
  * __dpd_fixsddi:                         Decimal float library routines.
!                                                              (line  166)
  * __dpd_fixsdsi:                         Decimal float library routines.
!                                                              (line  158)
  * __dpd_fixtddi:                         Decimal float library routines.
!                                                              (line  170)
  * __dpd_fixtdsi:                         Decimal float library routines.
!                                                              (line  162)
  * __dpd_fixunsdddi:                      Decimal float library routines.
!                                                              (line  185)
  * __dpd_fixunsddsi:                      Decimal float library routines.
!                                                              (line  176)
  * __dpd_fixunssddi:                      Decimal float library routines.
!                                                              (line  183)
  * __dpd_fixunssdsi:                      Decimal float library routines.
!                                                              (line  174)
  * __dpd_fixunstddi:                      Decimal float library routines.
!                                                              (line  187)
  * __dpd_fixunstdsi:                      Decimal float library routines.
!                                                              (line  178)
  * __dpd_floatdidd:                       Decimal float library routines.
!                                                              (line  203)
  * __dpd_floatdisd:                       Decimal float library routines.
!                                                              (line  201)
  * __dpd_floatditd:                       Decimal float library routines.
!                                                              (line  205)
  * __dpd_floatsidd:                       Decimal float library routines.
!                                                              (line  194)
  * __dpd_floatsisd:                       Decimal float library routines.
!                                                              (line  192)
  * __dpd_floatsitd:                       Decimal float library routines.
!                                                              (line  196)
  * __dpd_floatunsdidd:                    Decimal float library routines.
!                                                              (line  221)
  * __dpd_floatunsdisd:                    Decimal float library routines.
!                                                              (line  219)
  * __dpd_floatunsditd:                    Decimal float library routines.
!                                                              (line  223)
  * __dpd_floatunssidd:                    Decimal float library routines.
!                                                              (line  212)
  * __dpd_floatunssisd:                    Decimal float library routines.
!                                                              (line  210)
  * __dpd_floatunssitd:                    Decimal float library routines.
!                                                              (line  214)
  * __dpd_gedd2:                           Decimal float library routines.
!                                                              (line  275)
  * __dpd_gesd2:                           Decimal float library routines.
!                                                              (line  273)
  * __dpd_getd2:                           Decimal float library routines.
!                                                              (line  277)
  * __dpd_gtdd2:                           Decimal float library routines.
!                                                              (line  302)
  * __dpd_gtsd2:                           Decimal float library routines.
!                                                              (line  300)
  * __dpd_gttd2:                           Decimal float library routines.
!                                                              (line  304)
  * __dpd_ledd2:                           Decimal float library routines.
!                                                              (line  293)
  * __dpd_lesd2:                           Decimal float library routines.
!                                                              (line  291)
  * __dpd_letd2:                           Decimal float library routines.
!                                                              (line  295)
  * __dpd_ltdd2:                           Decimal float library routines.
!                                                              (line  284)
  * __dpd_ltsd2:                           Decimal float library routines.
!                                                              (line  282)
  * __dpd_lttd2:                           Decimal float library routines.
!                                                              (line  286)
  * __dpd_muldd3:                          Decimal float library routines.
!                                                              (line   50)
  * __dpd_mulsd3:                          Decimal float library routines.
!                                                              (line   46)
  * __dpd_multd3:                          Decimal float library routines.
!                                                              (line   54)
  * __dpd_nedd2:                           Decimal float library routines.
!                                                              (line  266)
  * __dpd_negdd2:                          Decimal float library routines.
!                                                              (line   76)
  * __dpd_negsd2:                          Decimal float library routines.
!                                                              (line   74)
  * __dpd_negtd2:                          Decimal float library routines.
!                                                              (line   78)
  * __dpd_nesd2:                           Decimal float library routines.
!                                                              (line  264)
  * __dpd_netd2:                           Decimal float library routines.
!                                                              (line  268)
  * __dpd_subdd3:                          Decimal float library routines.
!                                                              (line   35)
  * __dpd_subsd3:                          Decimal float library routines.
!                                                              (line   31)
  * __dpd_subtd3:                          Decimal float library routines.
!                                                              (line   39)
  * __dpd_truncdddf:                       Decimal float library routines.
!                                                              (line  151)
  * __dpd_truncddsd2:                      Decimal float library routines.
!                                                              (line   92)
  * __dpd_truncddsf:                       Decimal float library routines.
!                                                              (line  122)
  * __dpd_truncdfsd:                       Decimal float library routines.
!                                                              (line  109)
  * __dpd_truncsdsf:                       Decimal float library routines.
!                                                              (line  149)
  * __dpd_trunctddd2:                      Decimal float library routines.
!                                                              (line   96)
  * __dpd_trunctddf:                       Decimal float library routines.
!                                                              (line  128)
  * __dpd_trunctdsd2:                      Decimal float library routines.
!                                                              (line   94)
  * __dpd_trunctdsf:                       Decimal float library routines.
!                                                              (line  124)
  * __dpd_trunctdtf:                       Decimal float library routines.
!                                                              (line  153)
  * __dpd_trunctdxf:                       Decimal float library routines.
!                                                              (line  134)
  * __dpd_trunctfdd:                       Decimal float library routines.
!                                                              (line  117)
  * __dpd_trunctfsd:                       Decimal float library routines.
!                                                              (line  113)
  * __dpd_truncxfdd:                       Decimal float library routines.
!                                                              (line  115)
  * __dpd_truncxfsd:                       Decimal float library routines.
!                                                              (line  111)
  * __dpd_unorddd2:                        Decimal float library routines.
!                                                              (line  233)
  * __dpd_unordsd2:                        Decimal float library routines.
!                                                              (line  231)
  * __dpd_unordtd2:                        Decimal float library routines.
!                                                              (line  235)
  * __DTOR_LIST__:                         Initialization.     (line   25)
  * __eqdf2:                               Soft float library routines.
                                                               (line  193)
+ * __eqsf2:                               Soft float library routines.
+                                                              (line  192)
  * __eqtf2:                               Soft float library routines.
!                                                              (line  194)
  * __extenddftf2:                         Soft float library routines.
!                                                              (line   67)
  * __extenddfxf2:                         Soft float library routines.
!                                                              (line   68)
  * __extendsfdf2:                         Soft float library routines.
!                                                              (line   64)
  * __extendsftf2:                         Soft float library routines.
!                                                              (line   65)
  * __extendsfxf2:                         Soft float library routines.
!                                                              (line   66)
  * __ffsdi2:                              Integer library routines.
!                                                              (line  143)
  * __ffsti2:                              Integer library routines.
!                                                              (line  144)
  * __fixdfdi:                             Soft float library routines.
!                                                              (line   87)
  * __fixdfsi:                             Soft float library routines.
!                                                              (line   80)
  * __fixdfti:                             Soft float library routines.
!                                                              (line   93)
  * __fixsfdi:                             Soft float library routines.
!                                                              (line   86)
  * __fixsfsi:                             Soft float library routines.
!                                                              (line   79)
  * __fixsfti:                             Soft float library routines.
!                                                              (line   92)
  * __fixtfdi:                             Soft float library routines.
!                                                              (line   88)
  * __fixtfsi:                             Soft float library routines.
!                                                              (line   81)
  * __fixtfti:                             Soft float library routines.
!                                                              (line   94)
  * __fixunsdfdi:                          Soft float library routines.
!                                                              (line  107)
  * __fixunsdfsi:                          Soft float library routines.
!                                                              (line  100)
  * __fixunsdfti:                          Soft float library routines.
!                                                              (line  114)
  * __fixunssfdi:                          Soft float library routines.
!                                                              (line  106)
  * __fixunssfsi:                          Soft float library routines.
!                                                              (line   99)
  * __fixunssfti:                          Soft float library routines.
!                                                              (line  113)
  * __fixunstfdi:                          Soft float library routines.
!                                                              (line  108)
  * __fixunstfsi:                          Soft float library routines.
!                                                              (line  101)
  * __fixunstfti:                          Soft float library routines.
!                                                              (line  115)
  * __fixunsxfdi:                          Soft float library routines.
!                                                              (line  109)
  * __fixunsxfsi:                          Soft float library routines.
!                                                              (line  102)
  * __fixunsxfti:                          Soft float library routines.
!                                                              (line  116)
  * __fixxfdi:                             Soft float library routines.
!                                                              (line   89)
  * __fixxfsi:                             Soft float library routines.
!                                                              (line   82)
  * __fixxfti:                             Soft float library routines.
!                                                              (line   95)
  * __floatdidf:                           Soft float library routines.
                                                               (line  127)
+ * __floatdisf:                           Soft float library routines.
+                                                              (line  126)
  * __floatditf:                           Soft float library routines.
!                                                              (line  128)
  * __floatdixf:                           Soft float library routines.
!                                                              (line  129)
  * __floatsidf:                           Soft float library routines.
                                                               (line  121)
+ * __floatsisf:                           Soft float library routines.
+                                                              (line  120)
  * __floatsitf:                           Soft float library routines.
!                                                              (line  122)
  * __floatsixf:                           Soft float library routines.
!                                                              (line  123)
  * __floattidf:                           Soft float library routines.
                                                               (line  133)
+ * __floattisf:                           Soft float library routines.
+                                                              (line  132)
  * __floattitf:                           Soft float library routines.
!                                                              (line  134)
  * __floattixf:                           Soft float library routines.
!                                                              (line  135)
  * __floatundidf:                         Soft float library routines.
                                                               (line  145)
+ * __floatundisf:                         Soft float library routines.
+                                                              (line  144)
  * __floatunditf:                         Soft float library routines.
!                                                              (line  146)
  * __floatundixf:                         Soft float library routines.
!                                                              (line  147)
  * __floatunsidf:                         Soft float library routines.
                                                               (line  139)
+ * __floatunsisf:                         Soft float library routines.
+                                                              (line  138)
  * __floatunsitf:                         Soft float library routines.
!                                                              (line  140)
  * __floatunsixf:                         Soft float library routines.
!                                                              (line  141)
  * __floatuntidf:                         Soft float library routines.
                                                               (line  151)
+ * __floatuntisf:                         Soft float library routines.
+                                                              (line  150)
  * __floatuntitf:                         Soft float library routines.
!                                                              (line  152)
  * __floatuntixf:                         Soft float library routines.
!                                                              (line  153)
  * __fractdadf:                           Fixed-point fractional library routines.
!                                                              (line  643)
  * __fractdadi:                           Fixed-point fractional library routines.
!                                                              (line  640)
  * __fractdadq:                           Fixed-point fractional library routines.
!                                                              (line  623)
  * __fractdaha2:                          Fixed-point fractional library routines.
!                                                              (line  624)
  * __fractdahi:                           Fixed-point fractional library routines.
!                                                              (line  638)
  * __fractdahq:                           Fixed-point fractional library routines.
!                                                              (line  621)
  * __fractdaqi:                           Fixed-point fractional library routines.
!                                                              (line  637)
  * __fractdaqq:                           Fixed-point fractional library routines.
!                                                              (line  620)
  * __fractdasa2:                          Fixed-point fractional library routines.
!                                                              (line  625)
  * __fractdasf:                           Fixed-point fractional library routines.
!                                                              (line  642)
  * __fractdasi:                           Fixed-point fractional library routines.
!                                                              (line  639)
  * __fractdasq:                           Fixed-point fractional library routines.
!                                                              (line  622)
  * __fractdata2:                          Fixed-point fractional library routines.
!                                                              (line  626)
  * __fractdati:                           Fixed-point fractional library routines.
!                                                              (line  641)
  * __fractdauda:                          Fixed-point fractional library routines.
!                                                              (line  634)
  * __fractdaudq:                          Fixed-point fractional library routines.
!                                                              (line  630)
  * __fractdauha:                          Fixed-point fractional library routines.
!                                                              (line  632)
  * __fractdauhq:                          Fixed-point fractional library routines.
!                                                              (line  628)
  * __fractdauqq:                          Fixed-point fractional library routines.
!                                                              (line  627)
  * __fractdausa:                          Fixed-point fractional library routines.
!                                                              (line  633)
  * __fractdausq:                          Fixed-point fractional library routines.
                                                               (line  629)
+ * __fractdauta:                          Fixed-point fractional library routines.
+                                                              (line  635)
  * __fractdfda:                           Fixed-point fractional library routines.
!                                                              (line 1032)
  * __fractdfdq:                           Fixed-point fractional library routines.
!                                                              (line 1029)
  * __fractdfha:                           Fixed-point fractional library routines.
!                                                              (line 1030)
  * __fractdfhq:                           Fixed-point fractional library routines.
!                                                              (line 1027)
  * __fractdfqq:                           Fixed-point fractional library routines.
!                                                              (line 1026)
  * __fractdfsa:                           Fixed-point fractional library routines.
!                                                              (line 1031)
  * __fractdfsq:                           Fixed-point fractional library routines.
!                                                              (line 1028)
  * __fractdfta:                           Fixed-point fractional library routines.
                                                               (line 1033)
+ * __fractdfuda:                          Fixed-point fractional library routines.
+                                                              (line 1040)
  * __fractdfudq:                          Fixed-point fractional library routines.
!                                                              (line 1037)
  * __fractdfuha:                          Fixed-point fractional library routines.
!                                                              (line 1038)
  * __fractdfuhq:                          Fixed-point fractional library routines.
!                                                              (line 1035)
  * __fractdfuqq:                          Fixed-point fractional library routines.
!                                                              (line 1034)
  * __fractdfusa:                          Fixed-point fractional library routines.
!                                                              (line 1039)
  * __fractdfusq:                          Fixed-point fractional library routines.
!                                                              (line 1036)
  * __fractdfuta:                          Fixed-point fractional library routines.
!                                                              (line 1041)
  * __fractdida:                           Fixed-point fractional library routines.
!                                                              (line  982)
  * __fractdidq:                           Fixed-point fractional library routines.
!                                                              (line  979)
  * __fractdiha:                           Fixed-point fractional library routines.
!                                                              (line  980)
  * __fractdihq:                           Fixed-point fractional library routines.
!                                                              (line  977)
  * __fractdiqq:                           Fixed-point fractional library routines.
!                                                              (line  976)
  * __fractdisa:                           Fixed-point fractional library routines.
!                                                              (line  981)
  * __fractdisq:                           Fixed-point fractional library routines.
!                                                              (line  978)
  * __fractdita:                           Fixed-point fractional library routines.
                                                               (line  983)
+ * __fractdiuda:                          Fixed-point fractional library routines.
+                                                              (line  990)
  * __fractdiudq:                          Fixed-point fractional library routines.
!                                                              (line  987)
  * __fractdiuha:                          Fixed-point fractional library routines.
!                                                              (line  988)
  * __fractdiuhq:                          Fixed-point fractional library routines.
!                                                              (line  985)
  * __fractdiuqq:                          Fixed-point fractional library routines.
!                                                              (line  984)
  * __fractdiusa:                          Fixed-point fractional library routines.
!                                                              (line  989)
  * __fractdiusq:                          Fixed-point fractional library routines.
!                                                              (line  986)
  * __fractdiuta:                          Fixed-point fractional library routines.
!                                                              (line  991)
  * __fractdqda:                           Fixed-point fractional library routines.
!                                                              (line  551)
  * __fractdqdf:                           Fixed-point fractional library routines.
!                                                              (line  573)
  * __fractdqdi:                           Fixed-point fractional library routines.
!                                                              (line  570)
  * __fractdqha:                           Fixed-point fractional library routines.
!                                                              (line  549)
  * __fractdqhi:                           Fixed-point fractional library routines.
!                                                              (line  568)
  * __fractdqhq2:                          Fixed-point fractional library routines.
!                                                              (line  547)
  * __fractdqqi:                           Fixed-point fractional library routines.
!                                                              (line  567)
  * __fractdqqq2:                          Fixed-point fractional library routines.
!                                                              (line  546)
  * __fractdqsa:                           Fixed-point fractional library routines.
!                                                              (line  550)
  * __fractdqsf:                           Fixed-point fractional library routines.
!                                                              (line  572)
  * __fractdqsi:                           Fixed-point fractional library routines.
!                                                              (line  569)
  * __fractdqsq2:                          Fixed-point fractional library routines.
!                                                              (line  548)
  * __fractdqta:                           Fixed-point fractional library routines.
!                                                              (line  552)
  * __fractdqti:                           Fixed-point fractional library routines.
!                                                              (line  571)
  * __fractdquda:                          Fixed-point fractional library routines.
!                                                              (line  563)
  * __fractdqudq:                          Fixed-point fractional library routines.
!                                                              (line  558)
  * __fractdquha:                          Fixed-point fractional library routines.
!                                                              (line  560)
  * __fractdquhq:                          Fixed-point fractional library routines.
!                                                              (line  555)
  * __fractdquqq:                          Fixed-point fractional library routines.
!                                                              (line  553)
  * __fractdqusa:                          Fixed-point fractional library routines.
!                                                              (line  562)
  * __fractdqusq:                          Fixed-point fractional library routines.
!                                                              (line  556)
  * __fractdquta:                          Fixed-point fractional library routines.
!                                                              (line  565)
  * __fracthada2:                          Fixed-point fractional library routines.
!                                                              (line  579)
  * __fracthadf:                           Fixed-point fractional library routines.
!                                                              (line  597)
  * __fracthadi:                           Fixed-point fractional library routines.
!                                                              (line  594)
  * __fracthadq:                           Fixed-point fractional library routines.
!                                                              (line  577)
  * __fracthahi:                           Fixed-point fractional library routines.
!                                                              (line  592)
  * __fracthahq:                           Fixed-point fractional library routines.
!                                                              (line  575)
  * __fracthaqi:                           Fixed-point fractional library routines.
!                                                              (line  591)
  * __fracthaqq:                           Fixed-point fractional library routines.
!                                                              (line  574)
  * __fracthasa2:                          Fixed-point fractional library routines.
!                                                              (line  578)
  * __fracthasf:                           Fixed-point fractional library routines.
!                                                              (line  596)
  * __fracthasi:                           Fixed-point fractional library routines.
!                                                              (line  593)
  * __fracthasq:                           Fixed-point fractional library routines.
!                                                              (line  576)
  * __fracthata2:                          Fixed-point fractional library routines.
!                                                              (line  580)
  * __fracthati:                           Fixed-point fractional library routines.
!                                                              (line  595)
  * __fracthauda:                          Fixed-point fractional library routines.
!                                                              (line  588)
  * __fracthaudq:                          Fixed-point fractional library routines.
!                                                              (line  584)
  * __fracthauha:                          Fixed-point fractional library routines.
!                                                              (line  586)
  * __fracthauhq:                          Fixed-point fractional library routines.
!                                                              (line  582)
  * __fracthauqq:                          Fixed-point fractional library routines.
!                                                              (line  581)
  * __fracthausa:                          Fixed-point fractional library routines.
!                                                              (line  587)
  * __fracthausq:                          Fixed-point fractional library routines.
                                                               (line  583)
+ * __fracthauta:                          Fixed-point fractional library routines.
+                                                              (line  589)
  * __fracthida:                           Fixed-point fractional library routines.
!                                                              (line  950)
  * __fracthidq:                           Fixed-point fractional library routines.
!                                                              (line  947)
  * __fracthiha:                           Fixed-point fractional library routines.
!                                                              (line  948)
  * __fracthihq:                           Fixed-point fractional library routines.
!                                                              (line  945)
  * __fracthiqq:                           Fixed-point fractional library routines.
!                                                              (line  944)
  * __fracthisa:                           Fixed-point fractional library routines.
!                                                              (line  949)
  * __fracthisq:                           Fixed-point fractional library routines.
!                                                              (line  946)
  * __fracthita:                           Fixed-point fractional library routines.
                                                               (line  951)
+ * __fracthiuda:                          Fixed-point fractional library routines.
+                                                              (line  958)
  * __fracthiudq:                          Fixed-point fractional library routines.
!                                                              (line  955)
  * __fracthiuha:                          Fixed-point fractional library routines.
!                                                              (line  956)
  * __fracthiuhq:                          Fixed-point fractional library routines.
!                                                              (line  953)
  * __fracthiuqq:                          Fixed-point fractional library routines.
!                                                              (line  952)
  * __fracthiusa:                          Fixed-point fractional library routines.
!                                                              (line  957)
  * __fracthiusq:                          Fixed-point fractional library routines.
!                                                              (line  954)
  * __fracthiuta:                          Fixed-point fractional library routines.
!                                                              (line  959)
  * __fracthqda:                           Fixed-point fractional library routines.
!                                                              (line  505)
  * __fracthqdf:                           Fixed-point fractional library routines.
!                                                              (line  521)
  * __fracthqdi:                           Fixed-point fractional library routines.
!                                                              (line  518)
  * __fracthqdq2:                          Fixed-point fractional library routines.
!                                                              (line  502)
  * __fracthqha:                           Fixed-point fractional library routines.
!                                                              (line  503)
  * __fracthqhi:                           Fixed-point fractional library routines.
!                                                              (line  516)
  * __fracthqqi:                           Fixed-point fractional library routines.
!                                                              (line  515)
  * __fracthqqq2:                          Fixed-point fractional library routines.
!                                                              (line  500)
  * __fracthqsa:                           Fixed-point fractional library routines.
!                                                              (line  504)
  * __fracthqsf:                           Fixed-point fractional library routines.
!                                                              (line  520)
  * __fracthqsi:                           Fixed-point fractional library routines.
!                                                              (line  517)
  * __fracthqsq2:                          Fixed-point fractional library routines.
!                                                              (line  501)
  * __fracthqta:                           Fixed-point fractional library routines.
!                                                              (line  506)
  * __fracthqti:                           Fixed-point fractional library routines.
!                                                              (line  519)
  * __fracthquda:                          Fixed-point fractional library routines.
!                                                              (line  513)
  * __fracthqudq:                          Fixed-point fractional library routines.
!                                                              (line  510)
  * __fracthquha:                          Fixed-point fractional library routines.
!                                                              (line  511)
  * __fracthquhq:                          Fixed-point fractional library routines.
!                                                              (line  508)
  * __fracthquqq:                          Fixed-point fractional library routines.
!                                                              (line  507)
  * __fracthqusa:                          Fixed-point fractional library routines.
!                                                              (line  512)
  * __fracthqusq:                          Fixed-point fractional library routines.
!                                                              (line  509)
  * __fracthquta:                          Fixed-point fractional library routines.
!                                                              (line  514)
  * __fractqida:                           Fixed-point fractional library routines.
!                                                              (line  932)
  * __fractqidq:                           Fixed-point fractional library routines.
!                                                              (line  929)
  * __fractqiha:                           Fixed-point fractional library routines.
!                                                              (line  930)
  * __fractqihq:                           Fixed-point fractional library routines.
!                                                              (line  927)
  * __fractqiqq:                           Fixed-point fractional library routines.
!                                                              (line  926)
  * __fractqisa:                           Fixed-point fractional library routines.
!                                                              (line  931)
  * __fractqisq:                           Fixed-point fractional library routines.
!                                                              (line  928)
  * __fractqita:                           Fixed-point fractional library routines.
!                                                              (line  933)
  * __fractqiuda:                          Fixed-point fractional library routines.
!                                                              (line  941)
  * __fractqiudq:                          Fixed-point fractional library routines.
!                                                              (line  937)
  * __fractqiuha:                          Fixed-point fractional library routines.
!                                                              (line  939)
  * __fractqiuhq:                          Fixed-point fractional library routines.
!                                                              (line  935)
  * __fractqiuqq:                          Fixed-point fractional library routines.
!                                                              (line  934)
  * __fractqiusa:                          Fixed-point fractional library routines.
!                                                              (line  940)
  * __fractqiusq:                          Fixed-point fractional library routines.
                                                               (line  936)
+ * __fractqiuta:                          Fixed-point fractional library routines.
+                                                              (line  942)
  * __fractqqda:                           Fixed-point fractional library routines.
!                                                              (line  481)
  * __fractqqdf:                           Fixed-point fractional library routines.
!                                                              (line  499)
  * __fractqqdi:                           Fixed-point fractional library routines.
!                                                              (line  496)
  * __fractqqdq2:                          Fixed-point fractional library routines.
!                                                              (line  478)
  * __fractqqha:                           Fixed-point fractional library routines.
!                                                              (line  479)
  * __fractqqhi:                           Fixed-point fractional library routines.
!                                                              (line  494)
  * __fractqqhq2:                          Fixed-point fractional library routines.
!                                                              (line  476)
  * __fractqqqi:                           Fixed-point fractional library routines.
!                                                              (line  493)
  * __fractqqsa:                           Fixed-point fractional library routines.
!                                                              (line  480)
  * __fractqqsf:                           Fixed-point fractional library routines.
!                                                              (line  498)
  * __fractqqsi:                           Fixed-point fractional library routines.
!                                                              (line  495)
  * __fractqqsq2:                          Fixed-point fractional library routines.
!                                                              (line  477)
  * __fractqqta:                           Fixed-point fractional library routines.
!                                                              (line  482)
  * __fractqqti:                           Fixed-point fractional library routines.
!                                                              (line  497)
  * __fractqquda:                          Fixed-point fractional library routines.
!                                                              (line  490)
  * __fractqqudq:                          Fixed-point fractional library routines.
!                                                              (line  486)
  * __fractqquha:                          Fixed-point fractional library routines.
!                                                              (line  488)
  * __fractqquhq:                          Fixed-point fractional library routines.
!                                                              (line  484)
  * __fractqquqq:                          Fixed-point fractional library routines.
!                                                              (line  483)
  * __fractqqusa:                          Fixed-point fractional library routines.
!                                                              (line  489)
  * __fractqqusq:                          Fixed-point fractional library routines.
                                                               (line  485)
+ * __fractqquta:                          Fixed-point fractional library routines.
+                                                              (line  491)
  * __fractsada2:                          Fixed-point fractional library routines.
!                                                              (line  603)
  * __fractsadf:                           Fixed-point fractional library routines.
!                                                              (line  619)
  * __fractsadi:                           Fixed-point fractional library routines.
!                                                              (line  616)
  * __fractsadq:                           Fixed-point fractional library routines.
!                                                              (line  601)
  * __fractsaha2:                          Fixed-point fractional library routines.
!                                                              (line  602)
  * __fractsahi:                           Fixed-point fractional library routines.
!                                                              (line  614)
  * __fractsahq:                           Fixed-point fractional library routines.
!                                                              (line  599)
  * __fractsaqi:                           Fixed-point fractional library routines.
!                                                              (line  613)
  * __fractsaqq:                           Fixed-point fractional library routines.
!                                                              (line  598)
  * __fractsasf:                           Fixed-point fractional library routines.
!                                                              (line  618)
  * __fractsasi:                           Fixed-point fractional library routines.
!                                                              (line  615)
  * __fractsasq:                           Fixed-point fractional library routines.
!                                                              (line  600)
  * __fractsata2:                          Fixed-point fractional library routines.
!                                                              (line  604)
  * __fractsati:                           Fixed-point fractional library routines.
!                                                              (line  617)
  * __fractsauda:                          Fixed-point fractional library routines.
!                                                              (line  611)
  * __fractsaudq:                          Fixed-point fractional library routines.
!                                                              (line  608)
  * __fractsauha:                          Fixed-point fractional library routines.
!                                                              (line  609)
  * __fractsauhq:                          Fixed-point fractional library routines.
!                                                              (line  606)
  * __fractsauqq:                          Fixed-point fractional library routines.
!                                                              (line  605)
  * __fractsausa:                          Fixed-point fractional library routines.
!                                                              (line  610)
  * __fractsausq:                          Fixed-point fractional library routines.
!                                                              (line  607)
  * __fractsauta:                          Fixed-point fractional library routines.
!                                                              (line  612)
  * __fractsfda:                           Fixed-point fractional library routines.
!                                                              (line 1016)
  * __fractsfdq:                           Fixed-point fractional library routines.
!                                                              (line 1013)
  * __fractsfha:                           Fixed-point fractional library routines.
!                                                              (line 1014)
  * __fractsfhq:                           Fixed-point fractional library routines.
!                                                              (line 1011)
  * __fractsfqq:                           Fixed-point fractional library routines.
!                                                              (line 1010)
  * __fractsfsa:                           Fixed-point fractional library routines.
!                                                              (line 1015)
  * __fractsfsq:                           Fixed-point fractional library routines.
!                                                              (line 1012)
  * __fractsfta:                           Fixed-point fractional library routines.
                                                               (line 1017)
+ * __fractsfuda:                          Fixed-point fractional library routines.
+                                                              (line 1024)
  * __fractsfudq:                          Fixed-point fractional library routines.
!                                                              (line 1021)
  * __fractsfuha:                          Fixed-point fractional library routines.
!                                                              (line 1022)
  * __fractsfuhq:                          Fixed-point fractional library routines.
!                                                              (line 1019)
  * __fractsfuqq:                          Fixed-point fractional library routines.
!                                                              (line 1018)
  * __fractsfusa:                          Fixed-point fractional library routines.
!                                                              (line 1023)
  * __fractsfusq:                          Fixed-point fractional library routines.
!                                                              (line 1020)
  * __fractsfuta:                          Fixed-point fractional library routines.
!                                                              (line 1025)
  * __fractsida:                           Fixed-point fractional library routines.
!                                                              (line  966)
  * __fractsidq:                           Fixed-point fractional library routines.
!                                                              (line  963)
  * __fractsiha:                           Fixed-point fractional library routines.
!                                                              (line  964)
  * __fractsihq:                           Fixed-point fractional library routines.
!                                                              (line  961)
  * __fractsiqq:                           Fixed-point fractional library routines.
!                                                              (line  960)
  * __fractsisa:                           Fixed-point fractional library routines.
!                                                              (line  965)
  * __fractsisq:                           Fixed-point fractional library routines.
!                                                              (line  962)
  * __fractsita:                           Fixed-point fractional library routines.
                                                               (line  967)
+ * __fractsiuda:                          Fixed-point fractional library routines.
+                                                              (line  974)
  * __fractsiudq:                          Fixed-point fractional library routines.
!                                                              (line  971)
  * __fractsiuha:                          Fixed-point fractional library routines.
!                                                              (line  972)
  * __fractsiuhq:                          Fixed-point fractional library routines.
!                                                              (line  969)
  * __fractsiuqq:                          Fixed-point fractional library routines.
!                                                              (line  968)
  * __fractsiusa:                          Fixed-point fractional library routines.
!                                                              (line  973)
  * __fractsiusq:                          Fixed-point fractional library routines.
!                                                              (line  970)
  * __fractsiuta:                          Fixed-point fractional library routines.
!                                                              (line  975)
  * __fractsqda:                           Fixed-point fractional library routines.
!                                                              (line  527)
  * __fractsqdf:                           Fixed-point fractional library routines.
!                                                              (line  545)
  * __fractsqdi:                           Fixed-point fractional library routines.
!                                                              (line  542)
  * __fractsqdq2:                          Fixed-point fractional library routines.
!                                                              (line  524)
  * __fractsqha:                           Fixed-point fractional library routines.
!                                                              (line  525)
  * __fractsqhi:                           Fixed-point fractional library routines.
!                                                              (line  540)
  * __fractsqhq2:                          Fixed-point fractional library routines.
!                                                              (line  523)
  * __fractsqqi:                           Fixed-point fractional library routines.
!                                                              (line  539)
  * __fractsqqq2:                          Fixed-point fractional library routines.
!                                                              (line  522)
  * __fractsqsa:                           Fixed-point fractional library routines.
!                                                              (line  526)
  * __fractsqsf:                           Fixed-point fractional library routines.
!                                                              (line  544)
  * __fractsqsi:                           Fixed-point fractional library routines.
!                                                              (line  541)
  * __fractsqta:                           Fixed-point fractional library routines.
!                                                              (line  528)
  * __fractsqti:                           Fixed-point fractional library routines.
!                                                              (line  543)
  * __fractsquda:                          Fixed-point fractional library routines.
!                                                              (line  536)
  * __fractsqudq:                          Fixed-point fractional library routines.
!                                                              (line  532)
  * __fractsquha:                          Fixed-point fractional library routines.
!                                                              (line  534)
  * __fractsquhq:                          Fixed-point fractional library routines.
!                                                              (line  530)
  * __fractsquqq:                          Fixed-point fractional library routines.
!                                                              (line  529)
  * __fractsqusa:                          Fixed-point fractional library routines.
!                                                              (line  535)
  * __fractsqusq:                          Fixed-point fractional library routines.
                                                               (line  531)
+ * __fractsquta:                          Fixed-point fractional library routines.
+                                                              (line  537)
  * __fracttada2:                          Fixed-point fractional library routines.
!                                                              (line  650)
  * __fracttadf:                           Fixed-point fractional library routines.
!                                                              (line  671)
  * __fracttadi:                           Fixed-point fractional library routines.
!                                                              (line  668)
  * __fracttadq:                           Fixed-point fractional library routines.
!                                                              (line  647)
  * __fracttaha2:                          Fixed-point fractional library routines.
!                                                              (line  648)
  * __fracttahi:                           Fixed-point fractional library routines.
!                                                              (line  666)
  * __fracttahq:                           Fixed-point fractional library routines.
!                                                              (line  645)
  * __fracttaqi:                           Fixed-point fractional library routines.
!                                                              (line  665)
  * __fracttaqq:                           Fixed-point fractional library routines.
!                                                              (line  644)
  * __fracttasa2:                          Fixed-point fractional library routines.
!                                                              (line  649)
  * __fracttasf:                           Fixed-point fractional library routines.
!                                                              (line  670)
  * __fracttasi:                           Fixed-point fractional library routines.
!                                                              (line  667)
  * __fracttasq:                           Fixed-point fractional library routines.
!                                                              (line  646)
  * __fracttati:                           Fixed-point fractional library routines.
!                                                              (line  669)
  * __fracttauda:                          Fixed-point fractional library routines.
!                                                              (line  661)
  * __fracttaudq:                          Fixed-point fractional library routines.
!                                                              (line  656)
  * __fracttauha:                          Fixed-point fractional library routines.
!                                                              (line  658)
  * __fracttauhq:                          Fixed-point fractional library routines.
!                                                              (line  653)
  * __fracttauqq:                          Fixed-point fractional library routines.
!                                                              (line  651)
  * __fracttausa:                          Fixed-point fractional library routines.
!                                                              (line  660)
  * __fracttausq:                          Fixed-point fractional library routines.
!                                                              (line  654)
  * __fracttauta:                          Fixed-point fractional library routines.
!                                                              (line  663)
  * __fracttida:                           Fixed-point fractional library routines.
!                                                              (line  998)
  * __fracttidq:                           Fixed-point fractional library routines.
!                                                              (line  995)
  * __fracttiha:                           Fixed-point fractional library routines.
!                                                              (line  996)
  * __fracttihq:                           Fixed-point fractional library routines.
!                                                              (line  993)
  * __fracttiqq:                           Fixed-point fractional library routines.
!                                                              (line  992)
  * __fracttisa:                           Fixed-point fractional library routines.
!                                                              (line  997)
  * __fracttisq:                           Fixed-point fractional library routines.
!                                                              (line  994)
  * __fracttita:                           Fixed-point fractional library routines.
!                                                              (line  999)
  * __fracttiuda:                          Fixed-point fractional library routines.
!                                                              (line 1007)
  * __fracttiudq:                          Fixed-point fractional library routines.
!                                                              (line 1003)
  * __fracttiuha:                          Fixed-point fractional library routines.
!                                                              (line 1005)
  * __fracttiuhq:                          Fixed-point fractional library routines.
!                                                              (line 1001)
  * __fracttiuqq:                          Fixed-point fractional library routines.
!                                                              (line 1000)
  * __fracttiusa:                          Fixed-point fractional library routines.
!                                                              (line 1006)
  * __fracttiusq:                          Fixed-point fractional library routines.
                                                               (line 1002)
+ * __fracttiuta:                          Fixed-point fractional library routines.
+                                                              (line 1008)
  * __fractudada:                          Fixed-point fractional library routines.
!                                                              (line  865)
  * __fractudadf:                          Fixed-point fractional library routines.
!                                                              (line  888)
  * __fractudadi:                          Fixed-point fractional library routines.
!                                                              (line  885)
  * __fractudadq:                          Fixed-point fractional library routines.
!                                                              (line  861)
  * __fractudaha:                          Fixed-point fractional library routines.
!                                                              (line  863)
  * __fractudahi:                          Fixed-point fractional library routines.
!                                                              (line  883)
  * __fractudahq:                          Fixed-point fractional library routines.
!                                                              (line  859)
  * __fractudaqi:                          Fixed-point fractional library routines.
!                                                              (line  882)
  * __fractudaqq:                          Fixed-point fractional library routines.
!                                                              (line  858)
  * __fractudasa:                          Fixed-point fractional library routines.
!                                                              (line  864)
  * __fractudasf:                          Fixed-point fractional library routines.
!                                                              (line  887)
  * __fractudasi:                          Fixed-point fractional library routines.
!                                                              (line  884)
  * __fractudasq:                          Fixed-point fractional library routines.
                                                               (line  860)
+ * __fractudata:                          Fixed-point fractional library routines.
+                                                              (line  866)
  * __fractudati:                          Fixed-point fractional library routines.
!                                                              (line  886)
  * __fractudaudq:                         Fixed-point fractional library routines.
!                                                              (line  874)
  * __fractudauha2:                        Fixed-point fractional library routines.
!                                                              (line  876)
  * __fractudauhq:                         Fixed-point fractional library routines.
!                                                              (line  870)
  * __fractudauqq:                         Fixed-point fractional library routines.
!                                                              (line  868)
  * __fractudausa2:                        Fixed-point fractional library routines.
!                                                              (line  878)
  * __fractudausq:                         Fixed-point fractional library routines.
!                                                              (line  872)
  * __fractudauta2:                        Fixed-point fractional library routines.
!                                                              (line  880)
  * __fractudqda:                          Fixed-point fractional library routines.
!                                                              (line  772)
  * __fractudqdf:                          Fixed-point fractional library routines.
!                                                              (line  798)
  * __fractudqdi:                          Fixed-point fractional library routines.
!                                                              (line  794)
  * __fractudqdq:                          Fixed-point fractional library routines.
!                                                              (line  767)
  * __fractudqha:                          Fixed-point fractional library routines.
!                                                              (line  769)
  * __fractudqhi:                          Fixed-point fractional library routines.
!                                                              (line  792)
  * __fractudqhq:                          Fixed-point fractional library routines.
!                                                              (line  764)
  * __fractudqqi:                          Fixed-point fractional library routines.
!                                                              (line  790)
  * __fractudqqq:                          Fixed-point fractional library routines.
!                                                              (line  762)
  * __fractudqsa:                          Fixed-point fractional library routines.
!                                                              (line  771)
  * __fractudqsf:                          Fixed-point fractional library routines.
!                                                              (line  797)
  * __fractudqsi:                          Fixed-point fractional library routines.
!                                                              (line  793)
  * __fractudqsq:                          Fixed-point fractional library routines.
!                                                              (line  765)
  * __fractudqta:                          Fixed-point fractional library routines.
!                                                              (line  774)
  * __fractudqti:                          Fixed-point fractional library routines.
!                                                              (line  795)
  * __fractudquda:                         Fixed-point fractional library routines.
!                                                              (line  786)
  * __fractudquha:                         Fixed-point fractional library routines.
!                                                              (line  782)
  * __fractudquhq2:                        Fixed-point fractional library routines.
!                                                              (line  778)
  * __fractudquqq2:                        Fixed-point fractional library routines.
!                                                              (line  776)
  * __fractudqusa:                         Fixed-point fractional library routines.
!                                                              (line  784)
  * __fractudqusq2:                        Fixed-point fractional library routines.
!                                                              (line  780)
  * __fractudquta:                         Fixed-point fractional library routines.
!                                                              (line  788)
  * __fractuhada:                          Fixed-point fractional library routines.
!                                                              (line  806)
  * __fractuhadf:                          Fixed-point fractional library routines.
!                                                              (line  829)
  * __fractuhadi:                          Fixed-point fractional library routines.
!                                                              (line  826)
  * __fractuhadq:                          Fixed-point fractional library routines.
!                                                              (line  802)
  * __fractuhaha:                          Fixed-point fractional library routines.
!                                                              (line  804)
  * __fractuhahi:                          Fixed-point fractional library routines.
!                                                              (line  824)
  * __fractuhahq:                          Fixed-point fractional library routines.
!                                                              (line  800)
  * __fractuhaqi:                          Fixed-point fractional library routines.
!                                                              (line  823)
  * __fractuhaqq:                          Fixed-point fractional library routines.
!                                                              (line  799)
  * __fractuhasa:                          Fixed-point fractional library routines.
!                                                              (line  805)
  * __fractuhasf:                          Fixed-point fractional library routines.
!                                                              (line  828)
  * __fractuhasi:                          Fixed-point fractional library routines.
!                                                              (line  825)
  * __fractuhasq:                          Fixed-point fractional library routines.
                                                               (line  801)
+ * __fractuhata:                          Fixed-point fractional library routines.
+                                                              (line  807)
  * __fractuhati:                          Fixed-point fractional library routines.
!                                                              (line  827)
  * __fractuhauda2:                        Fixed-point fractional library routines.
!                                                              (line  819)
  * __fractuhaudq:                         Fixed-point fractional library routines.
!                                                              (line  815)
  * __fractuhauhq:                         Fixed-point fractional library routines.
!                                                              (line  811)
  * __fractuhauqq:                         Fixed-point fractional library routines.
!                                                              (line  809)
  * __fractuhausa2:                        Fixed-point fractional library routines.
!                                                              (line  817)
  * __fractuhausq:                         Fixed-point fractional library routines.
!                                                              (line  813)
  * __fractuhauta2:                        Fixed-point fractional library routines.
!                                                              (line  821)
  * __fractuhqda:                          Fixed-point fractional library routines.
!                                                              (line  709)
  * __fractuhqdf:                          Fixed-point fractional library routines.
!                                                              (line  730)
  * __fractuhqdi:                          Fixed-point fractional library routines.
!                                                              (line  727)
  * __fractuhqdq:                          Fixed-point fractional library routines.
!                                                              (line  706)
  * __fractuhqha:                          Fixed-point fractional library routines.
!                                                              (line  707)
  * __fractuhqhi:                          Fixed-point fractional library routines.
!                                                              (line  725)
  * __fractuhqhq:                          Fixed-point fractional library routines.
!                                                              (line  704)
  * __fractuhqqi:                          Fixed-point fractional library routines.
!                                                              (line  724)
  * __fractuhqqq:                          Fixed-point fractional library routines.
!                                                              (line  703)
  * __fractuhqsa:                          Fixed-point fractional library routines.
!                                                              (line  708)
  * __fractuhqsf:                          Fixed-point fractional library routines.
!                                                              (line  729)
  * __fractuhqsi:                          Fixed-point fractional library routines.
!                                                              (line  726)
  * __fractuhqsq:                          Fixed-point fractional library routines.
!                                                              (line  705)
  * __fractuhqta:                          Fixed-point fractional library routines.
!                                                              (line  710)
  * __fractuhqti:                          Fixed-point fractional library routines.
!                                                              (line  728)
  * __fractuhquda:                         Fixed-point fractional library routines.
!                                                              (line  720)
  * __fractuhqudq2:                        Fixed-point fractional library routines.
!                                                              (line  715)
  * __fractuhquha:                         Fixed-point fractional library routines.
!                                                              (line  717)
  * __fractuhquqq2:                        Fixed-point fractional library routines.
!                                                              (line  711)
  * __fractuhqusa:                         Fixed-point fractional library routines.
!                                                              (line  719)
  * __fractuhqusq2:                        Fixed-point fractional library routines.
!                                                              (line  713)
  * __fractuhquta:                         Fixed-point fractional library routines.
!                                                              (line  722)
  * __fractunsdadi:                        Fixed-point fractional library routines.
!                                                              (line 1562)
  * __fractunsdahi:                        Fixed-point fractional library routines.
!                                                              (line 1560)
  * __fractunsdaqi:                        Fixed-point fractional library routines.
!                                                              (line 1559)
  * __fractunsdasi:                        Fixed-point fractional library routines.
!                                                              (line 1561)
  * __fractunsdati:                        Fixed-point fractional library routines.
!                                                              (line 1563)
  * __fractunsdida:                        Fixed-point fractional library routines.
!                                                              (line 1714)
  * __fractunsdidq:                        Fixed-point fractional library routines.
!                                                              (line 1711)
  * __fractunsdiha:                        Fixed-point fractional library routines.
!                                                              (line 1712)
  * __fractunsdihq:                        Fixed-point fractional library routines.
!                                                              (line 1709)
  * __fractunsdiqq:                        Fixed-point fractional library routines.
!                                                              (line 1708)
  * __fractunsdisa:                        Fixed-point fractional library routines.
!                                                              (line 1713)
  * __fractunsdisq:                        Fixed-point fractional library routines.
!                                                              (line 1710)
  * __fractunsdita:                        Fixed-point fractional library routines.
!                                                              (line 1715)
  * __fractunsdiuda:                       Fixed-point fractional library routines.
!                                                              (line 1726)
  * __fractunsdiudq:                       Fixed-point fractional library routines.
!                                                              (line 1721)
  * __fractunsdiuha:                       Fixed-point fractional library routines.
!                                                              (line 1723)
  * __fractunsdiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1718)
  * __fractunsdiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1716)
  * __fractunsdiusa:                       Fixed-point fractional library routines.
!                                                              (line 1725)
  * __fractunsdiusq:                       Fixed-point fractional library routines.
!                                                              (line 1719)
  * __fractunsdiuta:                       Fixed-point fractional library routines.
!                                                              (line 1728)
  * __fractunsdqdi:                        Fixed-point fractional library routines.
!                                                              (line 1546)
  * __fractunsdqhi:                        Fixed-point fractional library routines.
!                                                              (line 1544)
  * __fractunsdqqi:                        Fixed-point fractional library routines.
!                                                              (line 1543)
  * __fractunsdqsi:                        Fixed-point fractional library routines.
!                                                              (line 1545)
  * __fractunsdqti:                        Fixed-point fractional library routines.
!                                                              (line 1547)
  * __fractunshadi:                        Fixed-point fractional library routines.
!                                                              (line 1552)
  * __fractunshahi:                        Fixed-point fractional library routines.
!                                                              (line 1550)
  * __fractunshaqi:                        Fixed-point fractional library routines.
!                                                              (line 1549)
  * __fractunshasi:                        Fixed-point fractional library routines.
!                                                              (line 1551)
  * __fractunshati:                        Fixed-point fractional library routines.
!                                                              (line 1553)
  * __fractunshida:                        Fixed-point fractional library routines.
!                                                              (line 1670)
  * __fractunshidq:                        Fixed-point fractional library routines.
!                                                              (line 1667)
  * __fractunshiha:                        Fixed-point fractional library routines.
!                                                              (line 1668)
  * __fractunshihq:                        Fixed-point fractional library routines.
!                                                              (line 1665)
  * __fractunshiqq:                        Fixed-point fractional library routines.
!                                                              (line 1664)
  * __fractunshisa:                        Fixed-point fractional library routines.
!                                                              (line 1669)
  * __fractunshisq:                        Fixed-point fractional library routines.
!                                                              (line 1666)
  * __fractunshita:                        Fixed-point fractional library routines.
!                                                              (line 1671)
  * __fractunshiuda:                       Fixed-point fractional library routines.
!                                                              (line 1682)
  * __fractunshiudq:                       Fixed-point fractional library routines.
!                                                              (line 1677)
  * __fractunshiuha:                       Fixed-point fractional library routines.
!                                                              (line 1679)
  * __fractunshiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1674)
  * __fractunshiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1672)
  * __fractunshiusa:                       Fixed-point fractional library routines.
!                                                              (line 1681)
  * __fractunshiusq:                       Fixed-point fractional library routines.
!                                                              (line 1675)
  * __fractunshiuta:                       Fixed-point fractional library routines.
!                                                              (line 1684)
  * __fractunshqdi:                        Fixed-point fractional library routines.
!                                                              (line 1536)
  * __fractunshqhi:                        Fixed-point fractional library routines.
!                                                              (line 1534)
  * __fractunshqqi:                        Fixed-point fractional library routines.
!                                                              (line 1533)
  * __fractunshqsi:                        Fixed-point fractional library routines.
!                                                              (line 1535)
  * __fractunshqti:                        Fixed-point fractional library routines.
!                                                              (line 1537)
  * __fractunsqida:                        Fixed-point fractional library routines.
!                                                              (line 1648)
  * __fractunsqidq:                        Fixed-point fractional library routines.
!                                                              (line 1645)
  * __fractunsqiha:                        Fixed-point fractional library routines.
!                                                              (line 1646)
  * __fractunsqihq:                        Fixed-point fractional library routines.
!                                                              (line 1643)
  * __fractunsqiqq:                        Fixed-point fractional library routines.
!                                                              (line 1642)
  * __fractunsqisa:                        Fixed-point fractional library routines.
!                                                              (line 1647)
  * __fractunsqisq:                        Fixed-point fractional library routines.
!                                                              (line 1644)
  * __fractunsqita:                        Fixed-point fractional library routines.
!                                                              (line 1649)
  * __fractunsqiuda:                       Fixed-point fractional library routines.
!                                                              (line 1660)
  * __fractunsqiudq:                       Fixed-point fractional library routines.
!                                                              (line 1655)
  * __fractunsqiuha:                       Fixed-point fractional library routines.
!                                                              (line 1657)
  * __fractunsqiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1652)
  * __fractunsqiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1650)
  * __fractunsqiusa:                       Fixed-point fractional library routines.
!                                                              (line 1659)
  * __fractunsqiusq:                       Fixed-point fractional library routines.
!                                                              (line 1653)
  * __fractunsqiuta:                       Fixed-point fractional library routines.
!                                                              (line 1662)
  * __fractunsqqdi:                        Fixed-point fractional library routines.
!                                                              (line 1531)
  * __fractunsqqhi:                        Fixed-point fractional library routines.
!                                                              (line 1529)
  * __fractunsqqqi:                        Fixed-point fractional library routines.
!                                                              (line 1528)
  * __fractunsqqsi:                        Fixed-point fractional library routines.
!                                                              (line 1530)
  * __fractunsqqti:                        Fixed-point fractional library routines.
!                                                              (line 1532)
  * __fractunssadi:                        Fixed-point fractional library routines.
!                                                              (line 1557)
  * __fractunssahi:                        Fixed-point fractional library routines.
!                                                              (line 1555)
  * __fractunssaqi:                        Fixed-point fractional library routines.
!                                                              (line 1554)
  * __fractunssasi:                        Fixed-point fractional library routines.
!                                                              (line 1556)
  * __fractunssati:                        Fixed-point fractional library routines.
!                                                              (line 1558)
  * __fractunssida:                        Fixed-point fractional library routines.
!                                                              (line 1692)
  * __fractunssidq:                        Fixed-point fractional library routines.
!                                                              (line 1689)
  * __fractunssiha:                        Fixed-point fractional library routines.
!                                                              (line 1690)
  * __fractunssihq:                        Fixed-point fractional library routines.
!                                                              (line 1687)
  * __fractunssiqq:                        Fixed-point fractional library routines.
!                                                              (line 1686)
  * __fractunssisa:                        Fixed-point fractional library routines.
!                                                              (line 1691)
  * __fractunssisq:                        Fixed-point fractional library routines.
!                                                              (line 1688)
  * __fractunssita:                        Fixed-point fractional library routines.
!                                                              (line 1693)
  * __fractunssiuda:                       Fixed-point fractional library routines.
!                                                              (line 1704)
  * __fractunssiudq:                       Fixed-point fractional library routines.
!                                                              (line 1699)
  * __fractunssiuha:                       Fixed-point fractional library routines.
!                                                              (line 1701)
  * __fractunssiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1696)
  * __fractunssiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1694)
  * __fractunssiusa:                       Fixed-point fractional library routines.
!                                                              (line 1703)
  * __fractunssiusq:                       Fixed-point fractional library routines.
!                                                              (line 1697)
  * __fractunssiuta:                       Fixed-point fractional library routines.
!                                                              (line 1706)
  * __fractunssqdi:                        Fixed-point fractional library routines.
!                                                              (line 1541)
  * __fractunssqhi:                        Fixed-point fractional library routines.
!                                                              (line 1539)
  * __fractunssqqi:                        Fixed-point fractional library routines.
!                                                              (line 1538)
  * __fractunssqsi:                        Fixed-point fractional library routines.
!                                                              (line 1540)
  * __fractunssqti:                        Fixed-point fractional library routines.
!                                                              (line 1542)
  * __fractunstadi:                        Fixed-point fractional library routines.
!                                                              (line 1567)
  * __fractunstahi:                        Fixed-point fractional library routines.
!                                                              (line 1565)
  * __fractunstaqi:                        Fixed-point fractional library routines.
!                                                              (line 1564)
  * __fractunstasi:                        Fixed-point fractional library routines.
!                                                              (line 1566)
  * __fractunstati:                        Fixed-point fractional library routines.
!                                                              (line 1568)
  * __fractunstida:                        Fixed-point fractional library routines.
!                                                              (line 1737)
  * __fractunstidq:                        Fixed-point fractional library routines.
!                                                              (line 1733)
  * __fractunstiha:                        Fixed-point fractional library routines.
!                                                              (line 1735)
  * __fractunstihq:                        Fixed-point fractional library routines.
!                                                              (line 1731)
  * __fractunstiqq:                        Fixed-point fractional library routines.
!                                                              (line 1730)
  * __fractunstisa:                        Fixed-point fractional library routines.
!                                                              (line 1736)
  * __fractunstisq:                        Fixed-point fractional library routines.
                                                               (line 1732)
+ * __fractunstita:                        Fixed-point fractional library routines.
+                                                              (line 1738)
  * __fractunstiuda:                       Fixed-point fractional library routines.
!                                                              (line 1752)
  * __fractunstiudq:                       Fixed-point fractional library routines.
!                                                              (line 1746)
  * __fractunstiuha:                       Fixed-point fractional library routines.
!                                                              (line 1748)
  * __fractunstiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1742)
  * __fractunstiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1740)
  * __fractunstiusa:                       Fixed-point fractional library routines.
!                                                              (line 1750)
  * __fractunstiusq:                       Fixed-point fractional library routines.
!                                                              (line 1744)
  * __fractunstiuta:                       Fixed-point fractional library routines.
!                                                              (line 1754)
  * __fractunsudadi:                       Fixed-point fractional library routines.
!                                                              (line 1628)
  * __fractunsudahi:                       Fixed-point fractional library routines.
!                                                              (line 1624)
  * __fractunsudaqi:                       Fixed-point fractional library routines.
!                                                              (line 1622)
  * __fractunsudasi:                       Fixed-point fractional library routines.
!                                                              (line 1626)
  * __fractunsudati:                       Fixed-point fractional library routines.
!                                                              (line 1630)
  * __fractunsudqdi:                       Fixed-point fractional library routines.
!                                                              (line 1602)
  * __fractunsudqhi:                       Fixed-point fractional library routines.
!                                                              (line 1598)
  * __fractunsudqqi:                       Fixed-point fractional library routines.
!                                                              (line 1596)
  * __fractunsudqsi:                       Fixed-point fractional library routines.
!                                                              (line 1600)
  * __fractunsudqti:                       Fixed-point fractional library routines.
!                                                              (line 1604)
  * __fractunsuhadi:                       Fixed-point fractional library routines.
!                                                              (line 1612)
  * __fractunsuhahi:                       Fixed-point fractional library routines.
!                                                              (line 1608)
  * __fractunsuhaqi:                       Fixed-point fractional library routines.
!                                                              (line 1606)
  * __fractunsuhasi:                       Fixed-point fractional library routines.
!                                                              (line 1610)
  * __fractunsuhati:                       Fixed-point fractional library routines.
!                                                              (line 1614)
  * __fractunsuhqdi:                       Fixed-point fractional library routines.
!                                                              (line 1583)
  * __fractunsuhqhi:                       Fixed-point fractional library routines.
!                                                              (line 1581)
  * __fractunsuhqqi:                       Fixed-point fractional library routines.
!                                                              (line 1580)
  * __fractunsuhqsi:                       Fixed-point fractional library routines.
!                                                              (line 1582)
  * __fractunsuhqti:                       Fixed-point fractional library routines.
!                                                              (line 1584)
  * __fractunsuqqdi:                       Fixed-point fractional library routines.
!                                                              (line 1576)
  * __fractunsuqqhi:                       Fixed-point fractional library routines.
!                                                              (line 1572)
  * __fractunsuqqqi:                       Fixed-point fractional library routines.
!                                                              (line 1570)
  * __fractunsuqqsi:                       Fixed-point fractional library routines.
!                                                              (line 1574)
  * __fractunsuqqti:                       Fixed-point fractional library routines.
!                                                              (line 1578)
  * __fractunsusadi:                       Fixed-point fractional library routines.
!                                                              (line 1619)
  * __fractunsusahi:                       Fixed-point fractional library routines.
!                                                              (line 1617)
  * __fractunsusaqi:                       Fixed-point fractional library routines.
!                                                              (line 1616)
  * __fractunsusasi:                       Fixed-point fractional library routines.
!                                                              (line 1618)
  * __fractunsusati:                       Fixed-point fractional library routines.
!                                                              (line 1620)
  * __fractunsusqdi:                       Fixed-point fractional library routines.
!                                                              (line 1592)
  * __fractunsusqhi:                       Fixed-point fractional library routines.
!                                                              (line 1588)
  * __fractunsusqqi:                       Fixed-point fractional library routines.
!                                                              (line 1586)
  * __fractunsusqsi:                       Fixed-point fractional library routines.
!                                                              (line 1590)
  * __fractunsusqti:                       Fixed-point fractional library routines.
!                                                              (line 1594)
  * __fractunsutadi:                       Fixed-point fractional library routines.
!                                                              (line 1638)
  * __fractunsutahi:                       Fixed-point fractional library routines.
!                                                              (line 1634)
  * __fractunsutaqi:                       Fixed-point fractional library routines.
!                                                              (line 1632)
  * __fractunsutasi:                       Fixed-point fractional library routines.
!                                                              (line 1636)
  * __fractunsutati:                       Fixed-point fractional library routines.
!                                                              (line 1640)
  * __fractuqqda:                          Fixed-point fractional library routines.
!                                                              (line  679)
  * __fractuqqdf:                          Fixed-point fractional library routines.
!                                                              (line  702)
  * __fractuqqdi:                          Fixed-point fractional library routines.
!                                                              (line  699)
  * __fractuqqdq:                          Fixed-point fractional library routines.
!                                                              (line  675)
  * __fractuqqha:                          Fixed-point fractional library routines.
!                                                              (line  677)
  * __fractuqqhi:                          Fixed-point fractional library routines.
!                                                              (line  697)
  * __fractuqqhq:                          Fixed-point fractional library routines.
!                                                              (line  673)
  * __fractuqqqi:                          Fixed-point fractional library routines.
!                                                              (line  696)
  * __fractuqqqq:                          Fixed-point fractional library routines.
!                                                              (line  672)
  * __fractuqqsa:                          Fixed-point fractional library routines.
!                                                              (line  678)
  * __fractuqqsf:                          Fixed-point fractional library routines.
!                                                              (line  701)
  * __fractuqqsi:                          Fixed-point fractional library routines.
!                                                              (line  698)
  * __fractuqqsq:                          Fixed-point fractional library routines.
                                                               (line  674)
+ * __fractuqqta:                          Fixed-point fractional library routines.
+                                                              (line  680)
  * __fractuqqti:                          Fixed-point fractional library routines.
!                                                              (line  700)
  * __fractuqquda:                         Fixed-point fractional library routines.
!                                                              (line  692)
  * __fractuqqudq2:                        Fixed-point fractional library routines.
!                                                              (line  686)
  * __fractuqquha:                         Fixed-point fractional library routines.
!                                                              (line  688)
  * __fractuqquhq2:                        Fixed-point fractional library routines.
!                                                              (line  682)
  * __fractuqqusa:                         Fixed-point fractional library routines.
!                                                              (line  690)
  * __fractuqqusq2:                        Fixed-point fractional library routines.
!                                                              (line  684)
  * __fractuqquta:                         Fixed-point fractional library routines.
!                                                              (line  694)
  * __fractusada:                          Fixed-point fractional library routines.
!                                                              (line  836)
  * __fractusadf:                          Fixed-point fractional library routines.
!                                                              (line  857)
  * __fractusadi:                          Fixed-point fractional library routines.
!                                                              (line  854)
  * __fractusadq:                          Fixed-point fractional library routines.
!                                                              (line  833)
  * __fractusaha:                          Fixed-point fractional library routines.
!                                                              (line  834)
  * __fractusahi:                          Fixed-point fractional library routines.
!                                                              (line  852)
  * __fractusahq:                          Fixed-point fractional library routines.
!                                                              (line  831)
  * __fractusaqi:                          Fixed-point fractional library routines.
!                                                              (line  851)
  * __fractusaqq:                          Fixed-point fractional library routines.
!                                                              (line  830)
  * __fractusasa:                          Fixed-point fractional library routines.
!                                                              (line  835)
  * __fractusasf:                          Fixed-point fractional library routines.
!                                                              (line  856)
  * __fractusasi:                          Fixed-point fractional library routines.
!                                                              (line  853)
  * __fractusasq:                          Fixed-point fractional library routines.
!                                                              (line  832)
  * __fractusata:                          Fixed-point fractional library routines.
!                                                              (line  837)
  * __fractusati:                          Fixed-point fractional library routines.
!                                                              (line  855)
  * __fractusauda2:                        Fixed-point fractional library routines.
!                                                              (line  847)
  * __fractusaudq:                         Fixed-point fractional library routines.
!                                                              (line  843)
  * __fractusauha2:                        Fixed-point fractional library routines.
!                                                              (line  845)
  * __fractusauhq:                         Fixed-point fractional library routines.
!                                                              (line  840)
  * __fractusauqq:                         Fixed-point fractional library routines.
!                                                              (line  838)
  * __fractusausq:                         Fixed-point fractional library routines.
!                                                              (line  841)
  * __fractusauta2:                        Fixed-point fractional library routines.
!                                                              (line  849)
  * __fractusqda:                          Fixed-point fractional library routines.
!                                                              (line  738)
  * __fractusqdf:                          Fixed-point fractional library routines.
!                                                              (line  761)
  * __fractusqdi:                          Fixed-point fractional library routines.
!                                                              (line  758)
  * __fractusqdq:                          Fixed-point fractional library routines.
!                                                              (line  734)
  * __fractusqha:                          Fixed-point fractional library routines.
!                                                              (line  736)
  * __fractusqhi:                          Fixed-point fractional library routines.
!                                                              (line  756)
  * __fractusqhq:                          Fixed-point fractional library routines.
!                                                              (line  732)
  * __fractusqqi:                          Fixed-point fractional library routines.
!                                                              (line  755)
  * __fractusqqq:                          Fixed-point fractional library routines.
!                                                              (line  731)
  * __fractusqsa:                          Fixed-point fractional library routines.
!                                                              (line  737)
  * __fractusqsf:                          Fixed-point fractional library routines.
!                                                              (line  760)
  * __fractusqsi:                          Fixed-point fractional library routines.
!                                                              (line  757)
  * __fractusqsq:                          Fixed-point fractional library routines.
                                                               (line  733)
+ * __fractusqta:                          Fixed-point fractional library routines.
+                                                              (line  739)
  * __fractusqti:                          Fixed-point fractional library routines.
!                                                              (line  759)
  * __fractusquda:                         Fixed-point fractional library routines.
!                                                              (line  751)
  * __fractusqudq2:                        Fixed-point fractional library routines.
!                                                              (line  745)
  * __fractusquha:                         Fixed-point fractional library routines.
!                                                              (line  747)
  * __fractusquhq2:                        Fixed-point fractional library routines.
!                                                              (line  743)
  * __fractusquqq2:                        Fixed-point fractional library routines.
!                                                              (line  741)
  * __fractusqusa:                         Fixed-point fractional library routines.
!                                                              (line  749)
  * __fractusquta:                         Fixed-point fractional library routines.
!                                                              (line  753)
  * __fractutada:                          Fixed-point fractional library routines.
!                                                              (line  899)
  * __fractutadf:                          Fixed-point fractional library routines.
!                                                              (line  925)
  * __fractutadi:                          Fixed-point fractional library routines.
!                                                              (line  921)
  * __fractutadq:                          Fixed-point fractional library routines.
!                                                              (line  894)
  * __fractutaha:                          Fixed-point fractional library routines.
!                                                              (line  896)
  * __fractutahi:                          Fixed-point fractional library routines.
!                                                              (line  919)
  * __fractutahq:                          Fixed-point fractional library routines.
!                                                              (line  891)
  * __fractutaqi:                          Fixed-point fractional library routines.
!                                                              (line  917)
  * __fractutaqq:                          Fixed-point fractional library routines.
!                                                              (line  889)
  * __fractutasa:                          Fixed-point fractional library routines.
!                                                              (line  898)
  * __fractutasf:                          Fixed-point fractional library routines.
!                                                              (line  924)
  * __fractutasi:                          Fixed-point fractional library routines.
!                                                              (line  920)
  * __fractutasq:                          Fixed-point fractional library routines.
!                                                              (line  892)
  * __fractutata:                          Fixed-point fractional library routines.
!                                                              (line  901)
  * __fractutati:                          Fixed-point fractional library routines.
!                                                              (line  922)
  * __fractutauda2:                        Fixed-point fractional library routines.
!                                                              (line  915)
  * __fractutaudq:                         Fixed-point fractional library routines.
!                                                              (line  909)
  * __fractutauha2:                        Fixed-point fractional library routines.
!                                                              (line  911)
  * __fractutauhq:                         Fixed-point fractional library routines.
!                                                              (line  905)
  * __fractutauqq:                         Fixed-point fractional library routines.
!                                                              (line  903)
  * __fractutausa2:                        Fixed-point fractional library routines.
!                                                              (line  913)
  * __fractutausq:                         Fixed-point fractional library routines.
!                                                              (line  907)
  * __gedf2:                               Soft float library routines.
                                                               (line  205)
+ * __gesf2:                               Soft float library routines.
+                                                              (line  204)
  * __getf2:                               Soft float library routines.
!                                                              (line  206)
  * __gtdf2:                               Soft float library routines.
                                                               (line  223)
+ * __gtsf2:                               Soft float library routines.
+                                                              (line  222)
  * __gttf2:                               Soft float library routines.
!                                                              (line  224)
  * __ledf2:                               Soft float library routines.
                                                               (line  217)
+ * __lesf2:                               Soft float library routines.
+                                                              (line  216)
  * __letf2:                               Soft float library routines.
!                                                              (line  218)
  * __lshrdi3:                             Integer library routines.
                                                               (line   30)
+ * __lshrsi3:                             Integer library routines.
+                                                              (line   29)
  * __lshrti3:                             Integer library routines.
!                                                              (line   31)
  * __lshruda3:                            Fixed-point fractional library routines.
!                                                              (line  396)
  * __lshrudq3:                            Fixed-point fractional library routines.
!                                                              (line  390)
  * __lshruha3:                            Fixed-point fractional library routines.
!                                                              (line  392)
  * __lshruhq3:                            Fixed-point fractional library routines.
!                                                              (line  386)
  * __lshruqq3:                            Fixed-point fractional library routines.
!                                                              (line  384)
  * __lshrusa3:                            Fixed-point fractional library routines.
!                                                              (line  394)
  * __lshrusq3:                            Fixed-point fractional library routines.
!                                                              (line  388)
  * __lshruta3:                            Fixed-point fractional library routines.
!                                                              (line  398)
  * __ltdf2:                               Soft float library routines.
                                                               (line  211)
+ * __ltsf2:                               Soft float library routines.
+                                                              (line  210)
  * __lttf2:                               Soft float library routines.
!                                                              (line  212)
  * __main:                                Collect2.           (line   15)
  * __moddi3:                              Integer library routines.
                                                               (line   36)
+ * __modsi3:                              Integer library routines.
+                                                              (line   35)
  * __modti3:                              Integer library routines.
!                                                              (line   37)
  * __morestack_current_segment:           Miscellaneous routines.
!                                                              (line   45)
  * __morestack_initial_sp:                Miscellaneous routines.
!                                                              (line   46)
  * __morestack_segments:                  Miscellaneous routines.
!                                                              (line   44)
  * __mulda3:                              Fixed-point fractional library routines.
!                                                              (line  178)
  * __muldc3:                              Soft float library routines.
!                                                              (line  239)
  * __muldf3:                              Soft float library routines.
!                                                              (line   39)
  * __muldi3:                              Integer library routines.
!                                                              (line   42)
  * __muldq3:                              Fixed-point fractional library routines.
!                                                              (line  165)
  * __mulha3:                              Fixed-point fractional library routines.
!                                                              (line  175)
  * __mulhq3:                              Fixed-point fractional library routines.
!                                                              (line  163)
  * __mulqq3:                              Fixed-point fractional library routines.
!                                                              (line  161)
  * __mulsa3:                              Fixed-point fractional library routines.
!                                                              (line  177)
  * __mulsc3:                              Soft float library routines.
!                                                              (line  237)
  * __mulsf3:                              Soft float library routines.
!                                                              (line   38)
  * __mulsi3:                              Integer library routines.
!                                                              (line   41)
  * __mulsq3:                              Fixed-point fractional library routines.
!                                                              (line  164)
  * __multa3:                              Fixed-point fractional library routines.
!                                                              (line  179)
  * __multc3:                              Soft float library routines.
!                                                              (line  241)
  * __multf3:                              Soft float library routines.
!                                                              (line   40)
  * __multi3:                              Integer library routines.
!                                                              (line   43)
  * __muluda3:                             Fixed-point fractional library routines.
!                                                              (line  185)
  * __muludq3:                             Fixed-point fractional library routines.
!                                                              (line  173)
  * __muluha3:                             Fixed-point fractional library routines.
!                                                              (line  181)
  * __muluhq3:                             Fixed-point fractional library routines.
!                                                              (line  169)
  * __muluqq3:                             Fixed-point fractional library routines.
!                                                              (line  167)
  * __mulusa3:                             Fixed-point fractional library routines.
!                                                              (line  183)
  * __mulusq3:                             Fixed-point fractional library routines.
!                                                              (line  171)
  * __muluta3:                             Fixed-point fractional library routines.
!                                                              (line  187)
  * __mulvdi3:                             Integer library routines.
                                                               (line  114)
+ * __mulvsi3:                             Integer library routines.
+                                                              (line  113)
  * __mulxc3:                              Soft float library routines.
!                                                              (line  243)
  * __mulxf3:                              Soft float library routines.
!                                                              (line   42)
  * __nedf2:                               Soft float library routines.
!                                                              (line  199)
  * __negda2:                              Fixed-point fractional library routines.
!                                                              (line  306)
  * __negdf2:                              Soft float library routines.
!                                                              (line   55)
  * __negdi2:                              Integer library routines.
!                                                              (line   46)
  * __negdq2:                              Fixed-point fractional library routines.
!                                                              (line  296)
  * __negha2:                              Fixed-point fractional library routines.
!                                                              (line  304)
  * __neghq2:                              Fixed-point fractional library routines.
!                                                              (line  294)
  * __negqq2:                              Fixed-point fractional library routines.
!                                                              (line  293)
  * __negsa2:                              Fixed-point fractional library routines.
!                                                              (line  305)
  * __negsf2:                              Soft float library routines.
!                                                              (line   54)
  * __negsq2:                              Fixed-point fractional library routines.
!                                                              (line  295)
  * __negta2:                              Fixed-point fractional library routines.
!                                                              (line  307)
  * __negtf2:                              Soft float library routines.
!                                                              (line   56)
  * __negti2:                              Integer library routines.
!                                                              (line   47)
  * __neguda2:                             Fixed-point fractional library routines.
!                                                              (line  311)
  * __negudq2:                             Fixed-point fractional library routines.
                                                               (line  302)
+ * __neguha2:                             Fixed-point fractional library routines.
+                                                              (line  308)
  * __neguhq2:                             Fixed-point fractional library routines.
!                                                              (line  299)
  * __neguqq2:                             Fixed-point fractional library routines.
!                                                              (line  297)
  * __negusa2:                             Fixed-point fractional library routines.
!                                                              (line  310)
  * __negusq2:                             Fixed-point fractional library routines.
!                                                              (line  300)
  * __neguta2:                             Fixed-point fractional library routines.
!                                                              (line  313)
  * __negvdi2:                             Integer library routines.
                                                               (line  118)
+ * __negvsi2:                             Integer library routines.
+                                                              (line  117)
  * __negxf2:                              Soft float library routines.
!                                                              (line   57)
  * __nesf2:                               Soft float library routines.
!                                                              (line  198)
  * __netf2:                               Soft float library routines.
!                                                              (line  200)
  * __paritydi2:                           Integer library routines.
                                                               (line  150)
+ * __paritysi2:                           Integer library routines.
+                                                              (line  149)
  * __parityti2:                           Integer library routines.
!                                                              (line  151)
  * __popcountdi2:                         Integer library routines.
                                                               (line  156)
+ * __popcountsi2:                         Integer library routines.
+                                                              (line  155)
  * __popcountti2:                         Integer library routines.
!                                                              (line  157)
  * __powidf2:                             Soft float library routines.
                                                               (line  232)
+ * __powisf2:                             Soft float library routines.
+                                                              (line  231)
  * __powitf2:                             Soft float library routines.
!                                                              (line  233)
  * __powixf2:                             Soft float library routines.
!                                                              (line  234)
  * __satfractdadq:                        Fixed-point fractional library routines.
!                                                              (line 1160)
  * __satfractdaha2:                       Fixed-point fractional library routines.
!                                                              (line 1161)
  * __satfractdahq:                        Fixed-point fractional library routines.
!                                                              (line 1158)
  * __satfractdaqq:                        Fixed-point fractional library routines.
!                                                              (line 1157)
  * __satfractdasa2:                       Fixed-point fractional library routines.
!                                                              (line 1162)
  * __satfractdasq:                        Fixed-point fractional library routines.
!                                                              (line 1159)
  * __satfractdata2:                       Fixed-point fractional library routines.
!                                                              (line 1163)
  * __satfractdauda:                       Fixed-point fractional library routines.
!                                                              (line 1173)
  * __satfractdaudq:                       Fixed-point fractional library routines.
!                                                              (line 1168)
  * __satfractdauha:                       Fixed-point fractional library routines.
!                                                              (line 1170)
  * __satfractdauhq:                       Fixed-point fractional library routines.
!                                                              (line 1166)
  * __satfractdauqq:                       Fixed-point fractional library routines.
!                                                              (line 1164)
  * __satfractdausa:                       Fixed-point fractional library routines.
!                                                              (line 1172)
  * __satfractdausq:                       Fixed-point fractional library routines.
!                                                              (line 1167)
  * __satfractdauta:                       Fixed-point fractional library routines.
!                                                              (line 1174)
  * __satfractdfda:                        Fixed-point fractional library routines.
!                                                              (line 1513)
  * __satfractdfdq:                        Fixed-point fractional library routines.
!                                                              (line 1510)
  * __satfractdfha:                        Fixed-point fractional library routines.
!                                                              (line 1511)
  * __satfractdfhq:                        Fixed-point fractional library routines.
!                                                              (line 1508)
  * __satfractdfqq:                        Fixed-point fractional library routines.
!                                                              (line 1507)
  * __satfractdfsa:                        Fixed-point fractional library routines.
!                                                              (line 1512)
  * __satfractdfsq:                        Fixed-point fractional library routines.
!                                                              (line 1509)
  * __satfractdfta:                        Fixed-point fractional library routines.
!                                                              (line 1514)
  * __satfractdfuda:                       Fixed-point fractional library routines.
!                                                              (line 1522)
  * __satfractdfudq:                       Fixed-point fractional library routines.
!                                                              (line 1518)
  * __satfractdfuha:                       Fixed-point fractional library routines.
!                                                              (line 1520)
  * __satfractdfuhq:                       Fixed-point fractional library routines.
!                                                              (line 1516)
  * __satfractdfuqq:                       Fixed-point fractional library routines.
!                                                              (line 1515)
  * __satfractdfusa:                       Fixed-point fractional library routines.
!                                                              (line 1521)
  * __satfractdfusq:                       Fixed-point fractional library routines.
                                                               (line 1517)
+ * __satfractdfuta:                       Fixed-point fractional library routines.
+                                                              (line 1523)
  * __satfractdida:                        Fixed-point fractional library routines.
!                                                              (line 1463)
  * __satfractdidq:                        Fixed-point fractional library routines.
!                                                              (line 1460)
  * __satfractdiha:                        Fixed-point fractional library routines.
!                                                              (line 1461)
  * __satfractdihq:                        Fixed-point fractional library routines.
!                                                              (line 1458)
  * __satfractdiqq:                        Fixed-point fractional library routines.
!                                                              (line 1457)
  * __satfractdisa:                        Fixed-point fractional library routines.
!                                                              (line 1462)
  * __satfractdisq:                        Fixed-point fractional library routines.
!                                                              (line 1459)
  * __satfractdita:                        Fixed-point fractional library routines.
                                                               (line 1464)
+ * __satfractdiuda:                       Fixed-point fractional library routines.
+                                                              (line 1471)
  * __satfractdiudq:                       Fixed-point fractional library routines.
!                                                              (line 1468)
  * __satfractdiuha:                       Fixed-point fractional library routines.
!                                                              (line 1469)
  * __satfractdiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1466)
  * __satfractdiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1465)
  * __satfractdiusa:                       Fixed-point fractional library routines.
!                                                              (line 1470)
  * __satfractdiusq:                       Fixed-point fractional library routines.
!                                                              (line 1467)
  * __satfractdiuta:                       Fixed-point fractional library routines.
!                                                              (line 1472)
  * __satfractdqda:                        Fixed-point fractional library routines.
!                                                              (line 1105)
  * __satfractdqha:                        Fixed-point fractional library routines.
!                                                              (line 1103)
  * __satfractdqhq2:                       Fixed-point fractional library routines.
!                                                              (line 1101)
  * __satfractdqqq2:                       Fixed-point fractional library routines.
!                                                              (line 1100)
  * __satfractdqsa:                        Fixed-point fractional library routines.
!                                                              (line 1104)
  * __satfractdqsq2:                       Fixed-point fractional library routines.
!                                                              (line 1102)
  * __satfractdqta:                        Fixed-point fractional library routines.
!                                                              (line 1106)
  * __satfractdquda:                       Fixed-point fractional library routines.
!                                                              (line 1117)
  * __satfractdqudq:                       Fixed-point fractional library routines.
!                                                              (line 1112)
  * __satfractdquha:                       Fixed-point fractional library routines.
!                                                              (line 1114)
  * __satfractdquhq:                       Fixed-point fractional library routines.
!                                                              (line 1109)
  * __satfractdquqq:                       Fixed-point fractional library routines.
!                                                              (line 1107)
  * __satfractdqusa:                       Fixed-point fractional library routines.
!                                                              (line 1116)
  * __satfractdqusq:                       Fixed-point fractional library routines.
!                                                              (line 1110)
  * __satfractdquta:                       Fixed-point fractional library routines.
                                                               (line 1119)
+ * __satfracthada2:                       Fixed-point fractional library routines.
+                                                              (line 1126)
  * __satfracthadq:                        Fixed-point fractional library routines.
!                                                              (line 1124)
  * __satfracthahq:                        Fixed-point fractional library routines.
!                                                              (line 1122)
  * __satfracthaqq:                        Fixed-point fractional library routines.
!                                                              (line 1121)
  * __satfracthasa2:                       Fixed-point fractional library routines.
!                                                              (line 1125)
  * __satfracthasq:                        Fixed-point fractional library routines.
!                                                              (line 1123)
  * __satfracthata2:                       Fixed-point fractional library routines.
!                                                              (line 1127)
  * __satfracthauda:                       Fixed-point fractional library routines.
!                                                              (line 1138)
  * __satfracthaudq:                       Fixed-point fractional library routines.
!                                                              (line 1133)
  * __satfracthauha:                       Fixed-point fractional library routines.
!                                                              (line 1135)
  * __satfracthauhq:                       Fixed-point fractional library routines.
!                                                              (line 1130)
  * __satfracthauqq:                       Fixed-point fractional library routines.
!                                                              (line 1128)
  * __satfracthausa:                       Fixed-point fractional library routines.
!                                                              (line 1137)
  * __satfracthausq:                       Fixed-point fractional library routines.
!                                                              (line 1131)
  * __satfracthauta:                       Fixed-point fractional library routines.
!                                                              (line 1140)
  * __satfracthida:                        Fixed-point fractional library routines.
!                                                              (line 1431)
  * __satfracthidq:                        Fixed-point fractional library routines.
!                                                              (line 1428)
  * __satfracthiha:                        Fixed-point fractional library routines.
!                                                              (line 1429)
  * __satfracthihq:                        Fixed-point fractional library routines.
!                                                              (line 1426)
  * __satfracthiqq:                        Fixed-point fractional library routines.
!                                                              (line 1425)
  * __satfracthisa:                        Fixed-point fractional library routines.
!                                                              (line 1430)
  * __satfracthisq:                        Fixed-point fractional library routines.
!                                                              (line 1427)
  * __satfracthita:                        Fixed-point fractional library routines.
                                                               (line 1432)
+ * __satfracthiuda:                       Fixed-point fractional library routines.
+                                                              (line 1439)
  * __satfracthiudq:                       Fixed-point fractional library routines.
!                                                              (line 1436)
  * __satfracthiuha:                       Fixed-point fractional library routines.
!                                                              (line 1437)
  * __satfracthiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1434)
  * __satfracthiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1433)
  * __satfracthiusa:                       Fixed-point fractional library routines.
!                                                              (line 1438)
  * __satfracthiusq:                       Fixed-point fractional library routines.
!                                                              (line 1435)
  * __satfracthiuta:                       Fixed-point fractional library routines.
!                                                              (line 1440)
  * __satfracthqda:                        Fixed-point fractional library routines.
!                                                              (line 1071)
  * __satfracthqdq2:                       Fixed-point fractional library routines.
!                                                              (line 1068)
  * __satfracthqha:                        Fixed-point fractional library routines.
!                                                              (line 1069)
  * __satfracthqqq2:                       Fixed-point fractional library routines.
!                                                              (line 1066)
  * __satfracthqsa:                        Fixed-point fractional library routines.
!                                                              (line 1070)
  * __satfracthqsq2:                       Fixed-point fractional library routines.
!                                                              (line 1067)
  * __satfracthqta:                        Fixed-point fractional library routines.
                                                               (line 1072)
+ * __satfracthquda:                       Fixed-point fractional library routines.
+                                                              (line 1079)
  * __satfracthqudq:                       Fixed-point fractional library routines.
!                                                              (line 1076)
  * __satfracthquha:                       Fixed-point fractional library routines.
!                                                              (line 1077)
  * __satfracthquhq:                       Fixed-point fractional library routines.
!                                                              (line 1074)
  * __satfracthquqq:                       Fixed-point fractional library routines.
!                                                              (line 1073)
  * __satfracthqusa:                       Fixed-point fractional library routines.
!                                                              (line 1078)
  * __satfracthqusq:                       Fixed-point fractional library routines.
!                                                              (line 1075)
  * __satfracthquta:                       Fixed-point fractional library routines.
!                                                              (line 1080)
  * __satfractqida:                        Fixed-point fractional library routines.
!                                                              (line 1409)
  * __satfractqidq:                        Fixed-point fractional library routines.
!                                                              (line 1406)
  * __satfractqiha:                        Fixed-point fractional library routines.
!                                                              (line 1407)
  * __satfractqihq:                        Fixed-point fractional library routines.
!                                                              (line 1404)
  * __satfractqiqq:                        Fixed-point fractional library routines.
!                                                              (line 1403)
  * __satfractqisa:                        Fixed-point fractional library routines.
!                                                              (line 1408)
  * __satfractqisq:                        Fixed-point fractional library routines.
!                                                              (line 1405)
  * __satfractqita:                        Fixed-point fractional library routines.
!                                                              (line 1410)
  * __satfractqiuda:                       Fixed-point fractional library routines.
!                                                              (line 1421)
  * __satfractqiudq:                       Fixed-point fractional library routines.
!                                                              (line 1416)
  * __satfractqiuha:                       Fixed-point fractional library routines.
!                                                              (line 1418)
  * __satfractqiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1413)
  * __satfractqiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1411)
  * __satfractqiusa:                       Fixed-point fractional library routines.
!                                                              (line 1420)
  * __satfractqiusq:                       Fixed-point fractional library routines.
!                                                              (line 1414)
  * __satfractqiuta:                       Fixed-point fractional library routines.
!                                                              (line 1423)
  * __satfractqqda:                        Fixed-point fractional library routines.
!                                                              (line 1050)
  * __satfractqqdq2:                       Fixed-point fractional library routines.
!                                                              (line 1047)
  * __satfractqqha:                        Fixed-point fractional library routines.
!                                                              (line 1048)
  * __satfractqqhq2:                       Fixed-point fractional library routines.
!                                                              (line 1045)
  * __satfractqqsa:                        Fixed-point fractional library routines.
!                                                              (line 1049)
  * __satfractqqsq2:                       Fixed-point fractional library routines.
!                                                              (line 1046)
  * __satfractqqta:                        Fixed-point fractional library routines.
!                                                              (line 1051)
  * __satfractqquda:                       Fixed-point fractional library routines.
!                                                              (line 1062)
  * __satfractqqudq:                       Fixed-point fractional library routines.
!                                                              (line 1057)
  * __satfractqquha:                       Fixed-point fractional library routines.
!                                                              (line 1059)
  * __satfractqquhq:                       Fixed-point fractional library routines.
!                                                              (line 1054)
  * __satfractqquqq:                       Fixed-point fractional library routines.
!                                                              (line 1052)
  * __satfractqqusa:                       Fixed-point fractional library routines.
!                                                              (line 1061)
  * __satfractqqusq:                       Fixed-point fractional library routines.
!                                                              (line 1055)
  * __satfractqquta:                       Fixed-point fractional library routines.
!                                                              (line 1064)
  * __satfractsada2:                       Fixed-point fractional library routines.
!                                                              (line 1147)
  * __satfractsadq:                        Fixed-point fractional library routines.
!                                                              (line 1145)
  * __satfractsaha2:                       Fixed-point fractional library routines.
!                                                              (line 1146)
  * __satfractsahq:                        Fixed-point fractional library routines.
!                                                              (line 1143)
  * __satfractsaqq:                        Fixed-point fractional library routines.
!                                                              (line 1142)
  * __satfractsasq:                        Fixed-point fractional library routines.
!                                                              (line 1144)
  * __satfractsata2:                       Fixed-point fractional library routines.
                                                               (line 1148)
+ * __satfractsauda:                       Fixed-point fractional library routines.
+                                                              (line 1155)
  * __satfractsaudq:                       Fixed-point fractional library routines.
!                                                              (line 1152)
  * __satfractsauha:                       Fixed-point fractional library routines.
!                                                              (line 1153)
  * __satfractsauhq:                       Fixed-point fractional library routines.
!                                                              (line 1150)
  * __satfractsauqq:                       Fixed-point fractional library routines.
!                                                              (line 1149)
  * __satfractsausa:                       Fixed-point fractional library routines.
!                                                              (line 1154)
  * __satfractsausq:                       Fixed-point fractional library routines.
!                                                              (line 1151)
  * __satfractsauta:                       Fixed-point fractional library routines.
!                                                              (line 1156)
  * __satfractsfda:                        Fixed-point fractional library routines.
!                                                              (line 1497)
  * __satfractsfdq:                        Fixed-point fractional library routines.
!                                                              (line 1494)
  * __satfractsfha:                        Fixed-point fractional library routines.
!                                                              (line 1495)
  * __satfractsfhq:                        Fixed-point fractional library routines.
!                                                              (line 1492)
  * __satfractsfqq:                        Fixed-point fractional library routines.
!                                                              (line 1491)
  * __satfractsfsa:                        Fixed-point fractional library routines.
!                                                              (line 1496)
  * __satfractsfsq:                        Fixed-point fractional library routines.
!                                                              (line 1493)
  * __satfractsfta:                        Fixed-point fractional library routines.
                                                               (line 1498)
+ * __satfractsfuda:                       Fixed-point fractional library routines.
+                                                              (line 1505)
  * __satfractsfudq:                       Fixed-point fractional library routines.
!                                                              (line 1502)
  * __satfractsfuha:                       Fixed-point fractional library routines.
!                                                              (line 1503)
  * __satfractsfuhq:                       Fixed-point fractional library routines.
!                                                              (line 1500)
  * __satfractsfuqq:                       Fixed-point fractional library routines.
!                                                              (line 1499)
  * __satfractsfusa:                       Fixed-point fractional library routines.
!                                                              (line 1504)
  * __satfractsfusq:                       Fixed-point fractional library routines.
!                                                              (line 1501)
  * __satfractsfuta:                       Fixed-point fractional library routines.
!                                                              (line 1506)
  * __satfractsida:                        Fixed-point fractional library routines.
!                                                              (line 1447)
  * __satfractsidq:                        Fixed-point fractional library routines.
!                                                              (line 1444)
  * __satfractsiha:                        Fixed-point fractional library routines.
!                                                              (line 1445)
  * __satfractsihq:                        Fixed-point fractional library routines.
!                                                              (line 1442)
  * __satfractsiqq:                        Fixed-point fractional library routines.
!                                                              (line 1441)
  * __satfractsisa:                        Fixed-point fractional library routines.
!                                                              (line 1446)
  * __satfractsisq:                        Fixed-point fractional library routines.
!                                                              (line 1443)
  * __satfractsita:                        Fixed-point fractional library routines.
                                                               (line 1448)
+ * __satfractsiuda:                       Fixed-point fractional library routines.
+                                                              (line 1455)
  * __satfractsiudq:                       Fixed-point fractional library routines.
!                                                              (line 1452)
  * __satfractsiuha:                       Fixed-point fractional library routines.
!                                                              (line 1453)
  * __satfractsiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1450)
  * __satfractsiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1449)
  * __satfractsiusa:                       Fixed-point fractional library routines.
!                                                              (line 1454)
  * __satfractsiusq:                       Fixed-point fractional library routines.
!                                                              (line 1451)
  * __satfractsiuta:                       Fixed-point fractional library routines.
!                                                              (line 1456)
  * __satfractsqda:                        Fixed-point fractional library routines.
!                                                              (line 1086)
  * __satfractsqdq2:                       Fixed-point fractional library routines.
!                                                              (line 1083)
  * __satfractsqha:                        Fixed-point fractional library routines.
!                                                              (line 1084)
  * __satfractsqhq2:                       Fixed-point fractional library routines.
!                                                              (line 1082)
  * __satfractsqqq2:                       Fixed-point fractional library routines.
!                                                              (line 1081)
  * __satfractsqsa:                        Fixed-point fractional library routines.
!                                                              (line 1085)
  * __satfractsqta:                        Fixed-point fractional library routines.
!                                                              (line 1087)
  * __satfractsquda:                       Fixed-point fractional library routines.
!                                                              (line 1097)
  * __satfractsqudq:                       Fixed-point fractional library routines.
!                                                              (line 1092)
  * __satfractsquha:                       Fixed-point fractional library routines.
!                                                              (line 1094)
  * __satfractsquhq:                       Fixed-point fractional library routines.
!                                                              (line 1090)
  * __satfractsquqq:                       Fixed-point fractional library routines.
!                                                              (line 1088)
  * __satfractsqusa:                       Fixed-point fractional library routines.
!                                                              (line 1096)
  * __satfractsqusq:                       Fixed-point fractional library routines.
!                                                              (line 1091)
  * __satfractsquta:                       Fixed-point fractional library routines.
!                                                              (line 1098)
  * __satfracttada2:                       Fixed-point fractional library routines.
!                                                              (line 1182)
  * __satfracttadq:                        Fixed-point fractional library routines.
!                                                              (line 1179)
  * __satfracttaha2:                       Fixed-point fractional library routines.
!                                                              (line 1180)
  * __satfracttahq:                        Fixed-point fractional library routines.
!                                                              (line 1177)
  * __satfracttaqq:                        Fixed-point fractional library routines.
!                                                              (line 1176)
  * __satfracttasa2:                       Fixed-point fractional library routines.
!                                                              (line 1181)
  * __satfracttasq:                        Fixed-point fractional library routines.
!                                                              (line 1178)
  * __satfracttauda:                       Fixed-point fractional library routines.
!                                                              (line 1193)
  * __satfracttaudq:                       Fixed-point fractional library routines.
!                                                              (line 1188)
  * __satfracttauha:                       Fixed-point fractional library routines.
!                                                              (line 1190)
  * __satfracttauhq:                       Fixed-point fractional library routines.
!                                                              (line 1185)
  * __satfracttauqq:                       Fixed-point fractional library routines.
!                                                              (line 1183)
  * __satfracttausa:                       Fixed-point fractional library routines.
!                                                              (line 1192)
  * __satfracttausq:                       Fixed-point fractional library routines.
!                                                              (line 1186)
  * __satfracttauta:                       Fixed-point fractional library routines.
!                                                              (line 1195)
  * __satfracttida:                        Fixed-point fractional library routines.
!                                                              (line 1479)
  * __satfracttidq:                        Fixed-point fractional library routines.
!                                                              (line 1476)
  * __satfracttiha:                        Fixed-point fractional library routines.
!                                                              (line 1477)
  * __satfracttihq:                        Fixed-point fractional library routines.
!                                                              (line 1474)
  * __satfracttiqq:                        Fixed-point fractional library routines.
!                                                              (line 1473)
  * __satfracttisa:                        Fixed-point fractional library routines.
!                                                              (line 1478)
  * __satfracttisq:                        Fixed-point fractional library routines.
!                                                              (line 1475)
  * __satfracttita:                        Fixed-point fractional library routines.
!                                                              (line 1480)
  * __satfracttiuda:                       Fixed-point fractional library routines.
!                                                              (line 1488)
  * __satfracttiudq:                       Fixed-point fractional library routines.
!                                                              (line 1484)
  * __satfracttiuha:                       Fixed-point fractional library routines.
!                                                              (line 1486)
  * __satfracttiuhq:                       Fixed-point fractional library routines.
!                                                              (line 1482)
  * __satfracttiuqq:                       Fixed-point fractional library routines.
!                                                              (line 1481)
  * __satfracttiusa:                       Fixed-point fractional library routines.
!                                                              (line 1487)
  * __satfracttiusq:                       Fixed-point fractional library routines.
                                                               (line 1483)
+ * __satfracttiuta:                       Fixed-point fractional library routines.
+                                                              (line 1489)
  * __satfractudada:                       Fixed-point fractional library routines.
!                                                              (line 1358)
  * __satfractudadq:                       Fixed-point fractional library routines.
!                                                              (line 1353)
  * __satfractudaha:                       Fixed-point fractional library routines.
!                                                              (line 1355)
  * __satfractudahq:                       Fixed-point fractional library routines.
!                                                              (line 1351)
  * __satfractudaqq:                       Fixed-point fractional library routines.
!                                                              (line 1349)
  * __satfractudasa:                       Fixed-point fractional library routines.
!                                                              (line 1357)
  * __satfractudasq:                       Fixed-point fractional library routines.
!                                                              (line 1352)
  * __satfractudata:                       Fixed-point fractional library routines.
!                                                              (line 1359)
  * __satfractudaudq:                      Fixed-point fractional library routines.
!                                                              (line 1367)
  * __satfractudauha2:                     Fixed-point fractional library routines.
!                                                              (line 1369)
  * __satfractudauhq:                      Fixed-point fractional library routines.
!                                                              (line 1363)
  * __satfractudauqq:                      Fixed-point fractional library routines.
!                                                              (line 1361)
  * __satfractudausa2:                     Fixed-point fractional library routines.
!                                                              (line 1371)
  * __satfractudausq:                      Fixed-point fractional library routines.
!                                                              (line 1365)
  * __satfractudauta2:                     Fixed-point fractional library routines.
!                                                              (line 1373)
  * __satfractudqda:                       Fixed-point fractional library routines.
!                                                              (line 1282)
  * __satfractudqdq:                       Fixed-point fractional library routines.
!                                                              (line 1277)
  * __satfractudqha:                       Fixed-point fractional library routines.
!                                                              (line 1279)
  * __satfractudqhq:                       Fixed-point fractional library routines.
!                                                              (line 1274)
  * __satfractudqqq:                       Fixed-point fractional library routines.
!                                                              (line 1272)
  * __satfractudqsa:                       Fixed-point fractional library routines.
!                                                              (line 1281)
  * __satfractudqsq:                       Fixed-point fractional library routines.
!                                                              (line 1275)
  * __satfractudqta:                       Fixed-point fractional library routines.
!                                                              (line 1284)
  * __satfractudquda:                      Fixed-point fractional library routines.
!                                                              (line 1296)
  * __satfractudquha:                      Fixed-point fractional library routines.
!                                                              (line 1292)
  * __satfractudquhq2:                     Fixed-point fractional library routines.
!                                                              (line 1288)
  * __satfractudquqq2:                     Fixed-point fractional library routines.
!                                                              (line 1286)
  * __satfractudqusa:                      Fixed-point fractional library routines.
!                                                              (line 1294)
  * __satfractudqusq2:                     Fixed-point fractional library routines.
!                                                              (line 1290)
  * __satfractudquta:                      Fixed-point fractional library routines.
!                                                              (line 1298)
  * __satfractuhada:                       Fixed-point fractional library routines.
!                                                              (line 1310)
  * __satfractuhadq:                       Fixed-point fractional library routines.
!                                                              (line 1305)
  * __satfractuhaha:                       Fixed-point fractional library routines.
!                                                              (line 1307)
  * __satfractuhahq:                       Fixed-point fractional library routines.
!                                                              (line 1302)
  * __satfractuhaqq:                       Fixed-point fractional library routines.
!                                                              (line 1300)
  * __satfractuhasa:                       Fixed-point fractional library routines.
!                                                              (line 1309)
  * __satfractuhasq:                       Fixed-point fractional library routines.
!                                                              (line 1303)
  * __satfractuhata:                       Fixed-point fractional library routines.
!                                                              (line 1312)
  * __satfractuhauda2:                     Fixed-point fractional library routines.
!                                                              (line 1324)
  * __satfractuhaudq:                      Fixed-point fractional library routines.
!                                                              (line 1320)
  * __satfractuhauhq:                      Fixed-point fractional library routines.
!                                                              (line 1316)
  * __satfractuhauqq:                      Fixed-point fractional library routines.
!                                                              (line 1314)
  * __satfractuhausa2:                     Fixed-point fractional library routines.
!                                                              (line 1322)
  * __satfractuhausq:                      Fixed-point fractional library routines.
!                                                              (line 1318)
  * __satfractuhauta2:                     Fixed-point fractional library routines.
!                                                              (line 1326)
  * __satfractuhqda:                       Fixed-point fractional library routines.
!                                                              (line 1231)
  * __satfractuhqdq:                       Fixed-point fractional library routines.
!                                                              (line 1228)
  * __satfractuhqha:                       Fixed-point fractional library routines.
!                                                              (line 1229)
  * __satfractuhqhq:                       Fixed-point fractional library routines.
!                                                              (line 1226)
  * __satfractuhqqq:                       Fixed-point fractional library routines.
!                                                              (line 1225)
  * __satfractuhqsa:                       Fixed-point fractional library routines.
!                                                              (line 1230)
  * __satfractuhqsq:                       Fixed-point fractional library routines.
!                                                              (line 1227)
  * __satfractuhqta:                       Fixed-point fractional library routines.
!                                                              (line 1232)
  * __satfractuhquda:                      Fixed-point fractional library routines.
!                                                              (line 1242)
  * __satfractuhqudq2:                     Fixed-point fractional library routines.
!                                                              (line 1237)
  * __satfractuhquha:                      Fixed-point fractional library routines.
!                                                              (line 1239)
  * __satfractuhquqq2:                     Fixed-point fractional library routines.
!                                                              (line 1233)
  * __satfractuhqusa:                      Fixed-point fractional library routines.
!                                                              (line 1241)
  * __satfractuhqusq2:                     Fixed-point fractional library routines.
!                                                              (line 1235)
  * __satfractuhquta:                      Fixed-point fractional library routines.
!                                                              (line 1244)
  * __satfractunsdida:                     Fixed-point fractional library routines.
!                                                              (line 1841)
  * __satfractunsdidq:                     Fixed-point fractional library routines.
!                                                              (line 1837)
  * __satfractunsdiha:                     Fixed-point fractional library routines.
!                                                              (line 1839)
  * __satfractunsdihq:                     Fixed-point fractional library routines.
!                                                              (line 1835)
  * __satfractunsdiqq:                     Fixed-point fractional library routines.
!                                                              (line 1834)
  * __satfractunsdisa:                     Fixed-point fractional library routines.
!                                                              (line 1840)
  * __satfractunsdisq:                     Fixed-point fractional library routines.
                                                               (line 1836)
+ * __satfractunsdita:                     Fixed-point fractional library routines.
+                                                              (line 1842)
  * __satfractunsdiuda:                    Fixed-point fractional library routines.
!                                                              (line 1856)
  * __satfractunsdiudq:                    Fixed-point fractional library routines.
!                                                              (line 1850)
  * __satfractunsdiuha:                    Fixed-point fractional library routines.
!                                                              (line 1852)
  * __satfractunsdiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1846)
  * __satfractunsdiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1844)
  * __satfractunsdiusa:                    Fixed-point fractional library routines.
!                                                              (line 1854)
  * __satfractunsdiusq:                    Fixed-point fractional library routines.
!                                                              (line 1848)
  * __satfractunsdiuta:                    Fixed-point fractional library routines.
!                                                              (line 1858)
  * __satfractunshida:                     Fixed-point fractional library routines.
!                                                              (line 1793)
  * __satfractunshidq:                     Fixed-point fractional library routines.
!                                                              (line 1789)
  * __satfractunshiha:                     Fixed-point fractional library routines.
!                                                              (line 1791)
  * __satfractunshihq:                     Fixed-point fractional library routines.
!                                                              (line 1787)
  * __satfractunshiqq:                     Fixed-point fractional library routines.
!                                                              (line 1786)
  * __satfractunshisa:                     Fixed-point fractional library routines.
!                                                              (line 1792)
  * __satfractunshisq:                     Fixed-point fractional library routines.
                                                               (line 1788)
+ * __satfractunshita:                     Fixed-point fractional library routines.
+                                                              (line 1794)
  * __satfractunshiuda:                    Fixed-point fractional library routines.
!                                                              (line 1808)
  * __satfractunshiudq:                    Fixed-point fractional library routines.
!                                                              (line 1802)
  * __satfractunshiuha:                    Fixed-point fractional library routines.
!                                                              (line 1804)
  * __satfractunshiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1798)
  * __satfractunshiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1796)
  * __satfractunshiusa:                    Fixed-point fractional library routines.
!                                                              (line 1806)
  * __satfractunshiusq:                    Fixed-point fractional library routines.
!                                                              (line 1800)
  * __satfractunshiuta:                    Fixed-point fractional library routines.
!                                                              (line 1810)
  * __satfractunsqida:                     Fixed-point fractional library routines.
!                                                              (line 1767)
  * __satfractunsqidq:                     Fixed-point fractional library routines.
!                                                              (line 1763)
  * __satfractunsqiha:                     Fixed-point fractional library routines.
!                                                              (line 1765)
  * __satfractunsqihq:                     Fixed-point fractional library routines.
!                                                              (line 1761)
  * __satfractunsqiqq:                     Fixed-point fractional library routines.
!                                                              (line 1760)
  * __satfractunsqisa:                     Fixed-point fractional library routines.
!                                                              (line 1766)
  * __satfractunsqisq:                     Fixed-point fractional library routines.
                                                               (line 1762)
+ * __satfractunsqita:                     Fixed-point fractional library routines.
+                                                              (line 1768)
  * __satfractunsqiuda:                    Fixed-point fractional library routines.
!                                                              (line 1782)
  * __satfractunsqiudq:                    Fixed-point fractional library routines.
!                                                              (line 1776)
  * __satfractunsqiuha:                    Fixed-point fractional library routines.
!                                                              (line 1778)
  * __satfractunsqiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1772)
  * __satfractunsqiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1770)
  * __satfractunsqiusa:                    Fixed-point fractional library routines.
!                                                              (line 1780)
  * __satfractunsqiusq:                    Fixed-point fractional library routines.
!                                                              (line 1774)
  * __satfractunsqiuta:                    Fixed-point fractional library routines.
!                                                              (line 1784)
  * __satfractunssida:                     Fixed-point fractional library routines.
!                                                              (line 1818)
  * __satfractunssidq:                     Fixed-point fractional library routines.
!                                                              (line 1815)
  * __satfractunssiha:                     Fixed-point fractional library routines.
!                                                              (line 1816)
  * __satfractunssihq:                     Fixed-point fractional library routines.
!                                                              (line 1813)
  * __satfractunssiqq:                     Fixed-point fractional library routines.
!                                                              (line 1812)
  * __satfractunssisa:                     Fixed-point fractional library routines.
!                                                              (line 1817)
  * __satfractunssisq:                     Fixed-point fractional library routines.
!                                                              (line 1814)
  * __satfractunssita:                     Fixed-point fractional library routines.
!                                                              (line 1819)
  * __satfractunssiuda:                    Fixed-point fractional library routines.
!                                                              (line 1830)
  * __satfractunssiudq:                    Fixed-point fractional library routines.
!                                                              (line 1825)
  * __satfractunssiuha:                    Fixed-point fractional library routines.
!                                                              (line 1827)
  * __satfractunssiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1822)
  * __satfractunssiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1820)
  * __satfractunssiusa:                    Fixed-point fractional library routines.
!                                                              (line 1829)
  * __satfractunssiusq:                    Fixed-point fractional library routines.
!                                                              (line 1823)
  * __satfractunssiuta:                    Fixed-point fractional library routines.
!                                                              (line 1832)
  * __satfractunstida:                     Fixed-point fractional library routines.
!                                                              (line 1870)
  * __satfractunstidq:                     Fixed-point fractional library routines.
!                                                              (line 1865)
  * __satfractunstiha:                     Fixed-point fractional library routines.
!                                                              (line 1867)
  * __satfractunstihq:                     Fixed-point fractional library routines.
!                                                              (line 1862)
  * __satfractunstiqq:                     Fixed-point fractional library routines.
!                                                              (line 1860)
  * __satfractunstisa:                     Fixed-point fractional library routines.
!                                                              (line 1869)
  * __satfractunstisq:                     Fixed-point fractional library routines.
!                                                              (line 1863)
  * __satfractunstita:                     Fixed-point fractional library routines.
!                                                              (line 1872)
  * __satfractunstiuda:                    Fixed-point fractional library routines.
!                                                              (line 1886)
  * __satfractunstiudq:                    Fixed-point fractional library routines.
!                                                              (line 1880)
  * __satfractunstiuha:                    Fixed-point fractional library routines.
!                                                              (line 1882)
  * __satfractunstiuhq:                    Fixed-point fractional library routines.
!                                                              (line 1876)
  * __satfractunstiuqq:                    Fixed-point fractional library routines.
!                                                              (line 1874)
  * __satfractunstiusa:                    Fixed-point fractional library routines.
!                                                              (line 1884)
  * __satfractunstiusq:                    Fixed-point fractional library routines.
!                                                              (line 1878)
  * __satfractunstiuta:                    Fixed-point fractional library routines.
!                                                              (line 1888)
  * __satfractuqqda:                       Fixed-point fractional library routines.
!                                                              (line 1207)
  * __satfractuqqdq:                       Fixed-point fractional library routines.
!                                                              (line 1202)
  * __satfractuqqha:                       Fixed-point fractional library routines.
!                                                              (line 1204)
  * __satfractuqqhq:                       Fixed-point fractional library routines.
!                                                              (line 1199)
  * __satfractuqqqq:                       Fixed-point fractional library routines.
!                                                              (line 1197)
  * __satfractuqqsa:                       Fixed-point fractional library routines.
!                                                              (line 1206)
  * __satfractuqqsq:                       Fixed-point fractional library routines.
!                                                              (line 1200)
  * __satfractuqqta:                       Fixed-point fractional library routines.
!                                                              (line 1209)
  * __satfractuqquda:                      Fixed-point fractional library routines.
!                                                              (line 1221)
  * __satfractuqqudq2:                     Fixed-point fractional library routines.
!                                                              (line 1215)
  * __satfractuqquha:                      Fixed-point fractional library routines.
!                                                              (line 1217)
  * __satfractuqquhq2:                     Fixed-point fractional library routines.
!                                                              (line 1211)
  * __satfractuqqusa:                      Fixed-point fractional library routines.
!                                                              (line 1219)
  * __satfractuqqusq2:                     Fixed-point fractional library routines.
!                                                              (line 1213)
  * __satfractuqquta:                      Fixed-point fractional library routines.
!                                                              (line 1223)
  * __satfractusada:                       Fixed-point fractional library routines.
!                                                              (line 1334)
  * __satfractusadq:                       Fixed-point fractional library routines.
!                                                              (line 1331)
  * __satfractusaha:                       Fixed-point fractional library routines.
!                                                              (line 1332)
  * __satfractusahq:                       Fixed-point fractional library routines.
!                                                              (line 1329)
  * __satfractusaqq:                       Fixed-point fractional library routines.
!                                                              (line 1328)
  * __satfractusasa:                       Fixed-point fractional library routines.
!                                                              (line 1333)
  * __satfractusasq:                       Fixed-point fractional library routines.
!                                                              (line 1330)
  * __satfractusata:                       Fixed-point fractional library routines.
!                                                              (line 1335)
  * __satfractusauda2:                     Fixed-point fractional library routines.
!                                                              (line 1345)
  * __satfractusaudq:                      Fixed-point fractional library routines.
!                                                              (line 1341)
  * __satfractusauha2:                     Fixed-point fractional library routines.
!                                                              (line 1343)
  * __satfractusauhq:                      Fixed-point fractional library routines.
!                                                              (line 1338)
  * __satfractusauqq:                      Fixed-point fractional library routines.
!                                                              (line 1336)
  * __satfractusausq:                      Fixed-point fractional library routines.
!                                                              (line 1339)
  * __satfractusauta2:                     Fixed-point fractional library routines.
!                                                              (line 1347)
  * __satfractusqda:                       Fixed-point fractional library routines.
!                                                              (line 1255)
  * __satfractusqdq:                       Fixed-point fractional library routines.
!                                                              (line 1250)
  * __satfractusqha:                       Fixed-point fractional library routines.
!                                                              (line 1252)
  * __satfractusqhq:                       Fixed-point fractional library routines.
!                                                              (line 1248)
  * __satfractusqqq:                       Fixed-point fractional library routines.
!                                                              (line 1246)
  * __satfractusqsa:                       Fixed-point fractional library routines.
!                                                              (line 1254)
  * __satfractusqsq:                       Fixed-point fractional library routines.
!                                                              (line 1249)
  * __satfractusqta:                       Fixed-point fractional library routines.
!                                                              (line 1256)
  * __satfractusquda:                      Fixed-point fractional library routines.
!                                                              (line 1268)
  * __satfractusqudq2:                     Fixed-point fractional library routines.
!                                                              (line 1262)
  * __satfractusquha:                      Fixed-point fractional library routines.
!                                                              (line 1264)
  * __satfractusquhq2:                     Fixed-point fractional library routines.
!                                                              (line 1260)
  * __satfractusquqq2:                     Fixed-point fractional library routines.
!                                                              (line 1258)
  * __satfractusqusa:                      Fixed-point fractional library routines.
!                                                              (line 1266)
  * __satfractusquta:                      Fixed-point fractional library routines.
!                                                              (line 1270)
  * __satfractutada:                       Fixed-point fractional library routines.
!                                                              (line 1385)
  * __satfractutadq:                       Fixed-point fractional library routines.
!                                                              (line 1380)
  * __satfractutaha:                       Fixed-point fractional library routines.
!                                                              (line 1382)
  * __satfractutahq:                       Fixed-point fractional library routines.
!                                                              (line 1377)
  * __satfractutaqq:                       Fixed-point fractional library routines.
!                                                              (line 1375)
  * __satfractutasa:                       Fixed-point fractional library routines.
!                                                              (line 1384)
  * __satfractutasq:                       Fixed-point fractional library routines.
!                                                              (line 1378)
  * __satfractutata:                       Fixed-point fractional library routines.
!                                                              (line 1387)
  * __satfractutauda2:                     Fixed-point fractional library routines.
!                                                              (line 1401)
  * __satfractutaudq:                      Fixed-point fractional library routines.
!                                                              (line 1395)
  * __satfractutauha2:                     Fixed-point fractional library routines.
!                                                              (line 1397)
  * __satfractutauhq:                      Fixed-point fractional library routines.
!                                                              (line 1391)
  * __satfractutauqq:                      Fixed-point fractional library routines.
!                                                              (line 1389)
  * __satfractutausa2:                     Fixed-point fractional library routines.
!                                                              (line 1399)
  * __satfractutausq:                      Fixed-point fractional library routines.
!                                                              (line 1393)
  * __splitstack_find:                     Miscellaneous routines.
!                                                              (line   15)
  * __ssaddda3:                            Fixed-point fractional library routines.
!                                                              (line   74)
  * __ssadddq3:                            Fixed-point fractional library routines.
!                                                              (line   69)
  * __ssaddha3:                            Fixed-point fractional library routines.
!                                                              (line   71)
  * __ssaddhq3:                            Fixed-point fractional library routines.
!                                                              (line   67)
  * __ssaddqq3:                            Fixed-point fractional library routines.
!                                                              (line   65)
  * __ssaddsa3:                            Fixed-point fractional library routines.
!                                                              (line   73)
  * __ssaddsq3:                            Fixed-point fractional library routines.
!                                                              (line   68)
  * __ssaddta3:                            Fixed-point fractional library routines.
!                                                              (line   75)
  * __ssashlda3:                           Fixed-point fractional library routines.
!                                                              (line  409)
  * __ssashldq3:                           Fixed-point fractional library routines.
!                                                              (line  405)
  * __ssashlha3:                           Fixed-point fractional library routines.
!                                                              (line  407)
  * __ssashlhq3:                           Fixed-point fractional library routines.
!                                                              (line  403)
  * __ssashlsa3:                           Fixed-point fractional library routines.
!                                                              (line  408)
  * __ssashlsq3:                           Fixed-point fractional library routines.
                                                               (line  404)
+ * __ssashlta3:                           Fixed-point fractional library routines.
+                                                              (line  410)
  * __ssdivda3:                            Fixed-point fractional library routines.
!                                                              (line  268)
  * __ssdivdq3:                            Fixed-point fractional library routines.
!                                                              (line  263)
  * __ssdivha3:                            Fixed-point fractional library routines.
!                                                              (line  265)
  * __ssdivhq3:                            Fixed-point fractional library routines.
!                                                              (line  261)
  * __ssdivqq3:                            Fixed-point fractional library routines.
!                                                              (line  259)
  * __ssdivsa3:                            Fixed-point fractional library routines.
!                                                              (line  267)
  * __ssdivsq3:                            Fixed-point fractional library routines.
!                                                              (line  262)
  * __ssdivta3:                            Fixed-point fractional library routines.
!                                                              (line  269)
  * __ssmulda3:                            Fixed-point fractional library routines.
!                                                              (line  200)
  * __ssmuldq3:                            Fixed-point fractional library routines.
!                                                              (line  195)
  * __ssmulha3:                            Fixed-point fractional library routines.
!                                                              (line  197)
  * __ssmulhq3:                            Fixed-point fractional library routines.
!                                                              (line  193)
  * __ssmulqq3:                            Fixed-point fractional library routines.
!                                                              (line  191)
  * __ssmulsa3:                            Fixed-point fractional library routines.
!                                                              (line  199)
  * __ssmulsq3:                            Fixed-point fractional library routines.
!                                                              (line  194)
  * __ssmulta3:                            Fixed-point fractional library routines.
!                                                              (line  201)
  * __ssnegda2:                            Fixed-point fractional library routines.
!                                                              (line  323)
  * __ssnegdq2:                            Fixed-point fractional library routines.
!                                                              (line  320)
  * __ssnegha2:                            Fixed-point fractional library routines.
!                                                              (line  321)
  * __ssneghq2:                            Fixed-point fractional library routines.
!                                                              (line  318)
  * __ssnegqq2:                            Fixed-point fractional library routines.
!                                                              (line  317)
  * __ssnegsa2:                            Fixed-point fractional library routines.
!                                                              (line  322)
  * __ssnegsq2:                            Fixed-point fractional library routines.
!                                                              (line  319)
  * __ssnegta2:                            Fixed-point fractional library routines.
!                                                              (line  324)
  * __sssubda3:                            Fixed-point fractional library routines.
!                                                              (line  136)
  * __sssubdq3:                            Fixed-point fractional library routines.
!                                                              (line  131)
  * __sssubha3:                            Fixed-point fractional library routines.
!                                                              (line  133)
  * __sssubhq3:                            Fixed-point fractional library routines.
!                                                              (line  129)
  * __sssubqq3:                            Fixed-point fractional library routines.
!                                                              (line  127)
  * __sssubsa3:                            Fixed-point fractional library routines.
!                                                              (line  135)
  * __sssubsq3:                            Fixed-point fractional library routines.
!                                                              (line  130)
  * __sssubta3:                            Fixed-point fractional library routines.
!                                                              (line  137)
  * __subda3:                              Fixed-point fractional library routines.
!                                                              (line  114)
  * __subdf3:                              Soft float library routines.
!                                                              (line   30)
  * __subdq3:                              Fixed-point fractional library routines.
!                                                              (line  101)
  * __subha3:                              Fixed-point fractional library routines.
!                                                              (line  111)
  * __subhq3:                              Fixed-point fractional library routines.
!                                                              (line   99)
  * __subqq3:                              Fixed-point fractional library routines.
!                                                              (line   97)
  * __subsa3:                              Fixed-point fractional library routines.
!                                                              (line  113)
  * __subsf3:                              Soft float library routines.
!                                                              (line   29)
  * __subsq3:                              Fixed-point fractional library routines.
!                                                              (line  100)
  * __subta3:                              Fixed-point fractional library routines.
!                                                              (line  115)
  * __subtf3:                              Soft float library routines.
!                                                              (line   31)
  * __subuda3:                             Fixed-point fractional library routines.
!                                                              (line  121)
  * __subudq3:                             Fixed-point fractional library routines.
!                                                              (line  109)
  * __subuha3:                             Fixed-point fractional library routines.
!                                                              (line  117)
  * __subuhq3:                             Fixed-point fractional library routines.
!                                                              (line  105)
  * __subuqq3:                             Fixed-point fractional library routines.
!                                                              (line  103)
  * __subusa3:                             Fixed-point fractional library routines.
!                                                              (line  119)
  * __subusq3:                             Fixed-point fractional library routines.
!                                                              (line  107)
  * __subuta3:                             Fixed-point fractional library routines.
                                                               (line  123)
! * __subvdi3:                             Integer library routines.
                                                               (line  122)
+ * __subvsi3:                             Integer library routines.
+                                                              (line  121)
  * __subxf3:                              Soft float library routines.
!                                                              (line   33)
  * __truncdfsf2:                          Soft float library routines.
!                                                              (line   75)
  * __trunctfdf2:                          Soft float library routines.
!                                                              (line   72)
  * __trunctfsf2:                          Soft float library routines.
!                                                              (line   74)
  * __truncxfdf2:                          Soft float library routines.
!                                                              (line   71)
  * __truncxfsf2:                          Soft float library routines.
!                                                              (line   73)
  * __ucmpdi2:                             Integer library routines.
!                                                              (line   92)
  * __ucmpti2:                             Integer library routines.
!                                                              (line   93)
  * __udivdi3:                             Integer library routines.
!                                                              (line   52)
  * __udivmoddi4:                          Integer library routines.
!                                                              (line   59)
  * __udivmodti4:                          Integer library routines.
!                                                              (line   61)
  * __udivsi3:                             Integer library routines.
!                                                              (line   50)
  * __udivti3:                             Integer library routines.
!                                                              (line   54)
  * __udivuda3:                            Fixed-point fractional library routines.
!                                                              (line  252)
  * __udivudq3:                            Fixed-point fractional library routines.
!                                                              (line  246)
  * __udivuha3:                            Fixed-point fractional library routines.
!                                                              (line  248)
  * __udivuhq3:                            Fixed-point fractional library routines.
!                                                              (line  242)
  * __udivuqq3:                            Fixed-point fractional library routines.
!                                                              (line  240)
  * __udivusa3:                            Fixed-point fractional library routines.
!                                                              (line  250)
  * __udivusq3:                            Fixed-point fractional library routines.
!                                                              (line  244)
  * __udivuta3:                            Fixed-point fractional library routines.
!                                                              (line  254)
  * __umoddi3:                             Integer library routines.
                                                               (line   69)
+ * __umodsi3:                             Integer library routines.
+                                                              (line   67)
  * __umodti3:                             Integer library routines.
!                                                              (line   71)
  * __unorddf2:                            Soft float library routines.
                                                               (line  172)
+ * __unordsf2:                            Soft float library routines.
+                                                              (line  171)
  * __unordtf2:                            Soft float library routines.
!                                                              (line  173)
  * __usadduda3:                           Fixed-point fractional library routines.
!                                                              (line   91)
  * __usaddudq3:                           Fixed-point fractional library routines.
!                                                              (line   85)
  * __usadduha3:                           Fixed-point fractional library routines.
!                                                              (line   87)
  * __usadduhq3:                           Fixed-point fractional library routines.
!                                                              (line   81)
  * __usadduqq3:                           Fixed-point fractional library routines.
!                                                              (line   79)
  * __usaddusa3:                           Fixed-point fractional library routines.
!                                                              (line   89)
  * __usaddusq3:                           Fixed-point fractional library routines.
!                                                              (line   83)
  * __usadduta3:                           Fixed-point fractional library routines.
!                                                              (line   93)
  * __usashluda3:                          Fixed-point fractional library routines.
!                                                              (line  427)
  * __usashludq3:                          Fixed-point fractional library routines.
!                                                              (line  421)
  * __usashluha3:                          Fixed-point fractional library routines.
!                                                              (line  423)
  * __usashluhq3:                          Fixed-point fractional library routines.
!                                                              (line  417)
  * __usashluqq3:                          Fixed-point fractional library routines.
!                                                              (line  415)
  * __usashlusa3:                          Fixed-point fractional library routines.
!                                                              (line  425)
  * __usashlusq3:                          Fixed-point fractional library routines.
!                                                              (line  419)
  * __usashluta3:                          Fixed-point fractional library routines.
!                                                              (line  429)
  * __usdivuda3:                           Fixed-point fractional library routines.
!                                                              (line  286)
  * __usdivudq3:                           Fixed-point fractional library routines.
!                                                              (line  280)
  * __usdivuha3:                           Fixed-point fractional library routines.
!                                                              (line  282)
  * __usdivuhq3:                           Fixed-point fractional library routines.
!                                                              (line  276)
  * __usdivuqq3:                           Fixed-point fractional library routines.
!                                                              (line  274)
  * __usdivusa3:                           Fixed-point fractional library routines.
!                                                              (line  284)
  * __usdivusq3:                           Fixed-point fractional library routines.
!                                                              (line  278)
  * __usdivuta3:                           Fixed-point fractional library routines.
!                                                              (line  288)
  * __usmuluda3:                           Fixed-point fractional library routines.
!                                                              (line  218)
  * __usmuludq3:                           Fixed-point fractional library routines.
!                                                              (line  212)
  * __usmuluha3:                           Fixed-point fractional library routines.
!                                                              (line  214)
  * __usmuluhq3:                           Fixed-point fractional library routines.
!                                                              (line  208)
  * __usmuluqq3:                           Fixed-point fractional library routines.
!                                                              (line  206)
  * __usmulusa3:                           Fixed-point fractional library routines.
!                                                              (line  216)
  * __usmulusq3:                           Fixed-point fractional library routines.
!                                                              (line  210)
  * __usmuluta3:                           Fixed-point fractional library routines.
!                                                              (line  220)
  * __usneguda2:                           Fixed-point fractional library routines.
!                                                              (line  337)
  * __usnegudq2:                           Fixed-point fractional library routines.
!                                                              (line  332)
  * __usneguha2:                           Fixed-point fractional library routines.
!                                                              (line  334)
  * __usneguhq2:                           Fixed-point fractional library routines.
!                                                              (line  329)
  * __usneguqq2:                           Fixed-point fractional library routines.
!                                                              (line  327)
  * __usnegusa2:                           Fixed-point fractional library routines.
!                                                              (line  336)
  * __usnegusq2:                           Fixed-point fractional library routines.
!                                                              (line  330)
  * __usneguta2:                           Fixed-point fractional library routines.
!                                                              (line  339)
  * __ussubuda3:                           Fixed-point fractional library routines.
!                                                              (line  154)
  * __ussubudq3:                           Fixed-point fractional library routines.
!                                                              (line  148)
  * __ussubuha3:                           Fixed-point fractional library routines.
!                                                              (line  150)
  * __ussubuhq3:                           Fixed-point fractional library routines.
!                                                              (line  144)
  * __ussubuqq3:                           Fixed-point fractional library routines.
!                                                              (line  142)
  * __ussubusa3:                           Fixed-point fractional library routines.
!                                                              (line  152)
  * __ussubusq3:                           Fixed-point fractional library routines.
!                                                              (line  146)
  * __ussubuta3:                           Fixed-point fractional library routines.
!                                                              (line  156)
! * abort:                                 Portability.        (line   20)
! * abs:                                   Arithmetic.         (line  200)
! * abs and attributes:                    Expressions.        (line   83)
! * absence_set:                           Processor pipeline description.
!                                                              (line  223)
! * absM2 instruction pattern:             Standard Names.     (line  610)
! * absolute value:                        Arithmetic.         (line  200)
  * ABS_EXPR:                              Unary and Binary Expressions.
                                                               (line    6)
  * access to operands:                    Accessors.          (line    6)
  * access to special operands:            Special Accessors.  (line    6)
  * accessors:                             Accessors.          (line    6)
! * ACCUMULATE_OUTGOING_ARGS:              Stack Arguments.    (line   48)
! * ACCUMULATE_OUTGOING_ARGS and stack frames: Function Entry. (line  133)
! * ACCUM_TYPE_SIZE:                       Type Layout.        (line   87)
! * acosM2 instruction pattern:            Standard Names.     (line  697)
! * ADA_LONG_TYPE_SIZE:                    Type Layout.        (line   25)
  * Adding a new GIMPLE statement code:    Adding a new GIMPLE statement code.
                                                               (line    6)
! * ADDITIONAL_REGISTER_NAMES:             Instruction Output. (line   14)
! * addM3 instruction pattern:             Standard Names.     (line  295)
! * addMODEcc instruction pattern:         Standard Names.     (line 1266)
! * addptrM3 instruction pattern:          Standard Names.     (line  328)
! * address constraints:                   Simple Constraints. (line  162)
! * addressing modes:                      Addressing Modes.   (line    6)
! * address_operand:                       Machine-Independent Predicates.
!                                                              (line   62)
! * address_operand <1>:                   Simple Constraints. (line  166)
! * addr_diff_vec:                         Side Effects.       (line  314)
  * addr_diff_vec, length of:              Insn Lengths.       (line   26)
  * ADDR_EXPR:                             Storage References. (line    6)
! * addr_vec:                              Side Effects.       (line  309)
  * addr_vec, length of:                   Insn Lengths.       (line   26)
! * addvM4 instruction pattern:            Standard Names.     (line  311)
! * ADJUST_FIELD_ALIGN:                    Storage Layout.     (line  195)
  * ADJUST_INSN_LENGTH:                    Insn Lengths.       (line   41)
! * ADJUST_REG_ALLOC_ORDER:                Allocation Order.   (line   22)
  * aggregates as return values:           Aggregate Return.   (line    6)
  * alias:                                 Alias analysis.     (line    6)
+ * allocate_stack instruction pattern:    Standard Names.     (line 1594)
  * ALL_REGS:                              Register Classes.   (line   17)
  * alternate entry points:                Insns.              (line  146)
  * anchored addresses:                    Anchored Addresses. (line    6)
! * and:                                   Arithmetic.         (line  158)
  * and and attributes:                    Expressions.        (line   50)
  * and, canonicalization of:              Insn Canonicalizations.
!                                                              (line   51)
! * andM3 instruction pattern:             Standard Names.     (line  301)
  * ANNOTATE_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
  * annotations:                           Annotations.        (line    6)
  * APPLY_RESULT_SIZE:                     Scalar Return.      (line  112)
! * ARGS_GROW_DOWNWARD:                    Frame Layout.       (line   30)
  * argument passing:                      Interface.          (line   36)
  * arguments in registers:                Register Arguments. (line    6)
  * arguments on stack:                    Stack Arguments.    (line    6)
+ * ARG_POINTER_CFA_OFFSET:                Frame Layout.       (line  190)
+ * ARG_POINTER_REGNUM:                    Frame Registers.    (line   40)
+ * ARG_POINTER_REGNUM and virtual registers: Regs and Memory. (line   65)
+ * arg_pointer_rtx:                       Frame Registers.    (line  104)
  * arithmetic library:                    Soft float library routines.
                                                               (line    6)
! * arithmetic shift:                      Arithmetic.         (line  173)
! * arithmetic shift with signed saturation: Arithmetic.       (line  173)
! * arithmetic shift with unsigned saturation: Arithmetic.     (line  173)
  * arithmetic, in RTL:                    Arithmetic.         (line    6)
! * ARITHMETIC_TYPE_P:                     Types for C++.      (line   59)
  * array:                                 Types.              (line    6)
  * ARRAY_RANGE_REF:                       Storage References. (line    6)
  * ARRAY_REF:                             Storage References. (line    6)
  * ARRAY_TYPE:                            Types.              (line    6)
! * ashift:                                Arithmetic.         (line  173)
! * ashift and attributes:                 Expressions.        (line   83)
! * ashiftrt:                              Arithmetic.         (line  190)
! * ashiftrt and attributes:               Expressions.        (line   83)
! * ashlM3 instruction pattern:            Standard Names.     (line  579)
! * ashrM3 instruction pattern:            Standard Names.     (line  591)
! * asinM2 instruction pattern:            Standard Names.     (line  691)
! * ASM_APP_OFF:                           File Framework.     (line   76)
! * ASM_APP_ON:                            File Framework.     (line   69)
! * ASM_COMMENT_START:                     File Framework.     (line   64)
! * ASM_DECLARE_COLD_FUNCTION_NAME:        Label Output.       (line  136)
! * ASM_DECLARE_COLD_FUNCTION_SIZE:        Label Output.       (line  151)
! * ASM_DECLARE_FUNCTION_NAME:             Label Output.       (line  108)
! * ASM_DECLARE_FUNCTION_SIZE:             Label Output.       (line  123)
! * ASM_DECLARE_OBJECT_NAME:               Label Output.       (line  164)
! * ASM_DECLARE_REGISTER_GLOBAL:           Label Output.       (line  192)
! * ASM_FINAL_SPEC:                        Driver.             (line   81)
! * ASM_FINISH_DECLARE_OBJECT:             Label Output.       (line  200)
! * ASM_FORMAT_PRIVATE_NAME:               Label Output.       (line  426)
! * asm_fprintf:                           Instruction Output. (line  150)
! * ASM_FPRINTF_EXTENSIONS:                Instruction Output. (line  160)
! * ASM_GENERATE_INTERNAL_LABEL:           Label Output.       (line  410)
! * asm_input:                             Side Effects.       (line  296)
  * asm_input and /v:                      Flags.              (line   76)
! * ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX:     Exception Handling. (line   80)
! * asm_noperands:                         Insns.              (line  304)
! * ASM_NO_SKIP_IN_TEXT:                   Alignment Output.   (line   78)
  * asm_operands and /v:                   Flags.              (line   76)
  * asm_operands, RTL sharing:             Sharing.            (line   45)
  * asm_operands, usage:                   Assembler.          (line    6)
! * ASM_OUTPUT_ADDR_DIFF_ELT:              Dispatch Tables.    (line    8)
! * ASM_OUTPUT_ADDR_VEC_ELT:               Dispatch Tables.    (line   25)
! * ASM_OUTPUT_ALIGN:                      Alignment Output.   (line   85)
! * ASM_OUTPUT_ALIGNED_BSS:                Uninitialized Data. (line   45)
! * ASM_OUTPUT_ALIGNED_COMMON:             Uninitialized Data. (line   29)
! * ASM_OUTPUT_ALIGNED_DECL_COMMON:        Uninitialized Data. (line   36)
! * ASM_OUTPUT_ALIGNED_DECL_LOCAL:         Uninitialized Data. (line   89)
! * ASM_OUTPUT_ALIGNED_LOCAL:              Uninitialized Data. (line   82)
! * ASM_OUTPUT_ALIGN_WITH_NOP:             Alignment Output.   (line   90)
! * ASM_OUTPUT_ASCII:                      Data Output.        (line   54)
! * ASM_OUTPUT_CASE_END:                   Dispatch Tables.    (line   50)
! * ASM_OUTPUT_CASE_LABEL:                 Dispatch Tables.    (line   37)
! * ASM_OUTPUT_COMMON:                     Uninitialized Data. (line    9)
! * ASM_OUTPUT_DEBUG_LABEL:                Label Output.       (line  398)
! * ASM_OUTPUT_DEF:                        Label Output.       (line  447)
! * ASM_OUTPUT_DEF_FROM_DECLS:             Label Output.       (line  454)
! * ASM_OUTPUT_DWARF_DATAREL:              SDB and DWARF.      (line   97)
! * ASM_OUTPUT_DWARF_DELTA:                SDB and DWARF.      (line   77)
! * ASM_OUTPUT_DWARF_OFFSET:               SDB and DWARF.      (line   86)
! * ASM_OUTPUT_DWARF_PCREL:                SDB and DWARF.      (line   92)
! * ASM_OUTPUT_DWARF_TABLE_REF:            SDB and DWARF.      (line  102)
! * ASM_OUTPUT_DWARF_VMS_DELTA:            SDB and DWARF.      (line   81)
! * ASM_OUTPUT_EXTERNAL:                   Label Output.       (line  327)
! * ASM_OUTPUT_FDESC:                      Data Output.        (line   63)
! * ASM_OUTPUT_FUNCTION_LABEL:             Label Output.       (line   16)
! * ASM_OUTPUT_INTERNAL_LABEL:             Label Output.       (line   27)
! * ASM_OUTPUT_LABEL:                      Label Output.       (line    8)
! * ASM_OUTPUT_LABELREF:                   Label Output.       (line  349)
! * ASM_OUTPUT_LABEL_REF:                  Label Output.       (line  371)
! * ASM_OUTPUT_LOCAL:                      Uninitialized Data. (line   69)
! * ASM_OUTPUT_MAX_SKIP_ALIGN:             Alignment Output.   (line   94)
! * ASM_OUTPUT_MEASURED_SIZE:              Label Output.       (line   51)
! * ASM_OUTPUT_OPCODE:                     Instruction Output. (line   35)
! * ASM_OUTPUT_POOL_EPILOGUE:              Data Output.        (line  112)
! * ASM_OUTPUT_POOL_PROLOGUE:              Data Output.        (line   76)
! * ASM_OUTPUT_REG_POP:                    Instruction Output. (line  206)
! * ASM_OUTPUT_REG_PUSH:                   Instruction Output. (line  201)
! * ASM_OUTPUT_SIZE_DIRECTIVE:             Label Output.       (line   45)
! * ASM_OUTPUT_SKIP:                       Alignment Output.   (line   72)
! * ASM_OUTPUT_SOURCE_FILENAME:            File Framework.     (line   83)
! * ASM_OUTPUT_SPECIAL_POOL_ENTRY:         Data Output.        (line   87)
! * ASM_OUTPUT_SYMBOL_REF:                 Label Output.       (line  364)
! * ASM_OUTPUT_TYPE_DIRECTIVE:             Label Output.       (line   98)
! * ASM_OUTPUT_WEAKREF:                    Label Output.       (line  259)
! * ASM_OUTPUT_WEAK_ALIAS:                 Label Output.       (line  473)
! * ASM_PREFERRED_EH_DATA_FORMAT:          Exception Handling. (line   66)
! * ASM_SPEC:                              Driver.             (line   73)
! * ASM_STABD_OP:                          DBX Options.        (line   34)
! * ASM_STABN_OP:                          DBX Options.        (line   41)
! * ASM_STABS_OP:                          DBX Options.        (line   28)
! * ASM_WEAKEN_DECL:                       Label Output.       (line  251)
! * ASM_WEAKEN_LABEL:                      Label Output.       (line  238)
  * assembler format:                      File Framework.     (line    6)
  * assembler instructions in RTL:         Assembler.          (line    6)
! * ASSEMBLER_DIALECT:                     Instruction Output. (line  172)
! * assemble_name:                         Label Output.       (line    8)
! * assemble_name_raw:                     Label Output.       (line   27)
  * assigning attribute values to insns:   Tagging Insns.      (line    6)
! * ASSUME_EXTENDED_UNWIND_CONTEXT:        Frame Registers.    (line  165)
  * asterisk in template:                  Output Statement.   (line   29)
! * AS_NEEDS_DASH_FOR_PIPED_INPUT:         Driver.             (line   88)
! * atan2M3 instruction pattern:           Standard Names.     (line  792)
! * atanM2 instruction pattern:            Standard Names.     (line  703)
! * atomic:                                GTY Options.        (line  195)
! * atomic_addMODE instruction pattern:    Standard Names.     (line 1996)
! * atomic_add_fetchMODE instruction pattern: Standard Names.  (line 2025)
! * atomic_andMODE instruction pattern:    Standard Names.     (line 1996)
! * atomic_and_fetchMODE instruction pattern: Standard Names.  (line 2025)
  * atomic_compare_and_swapMODE instruction pattern: Standard Names.
!                                                              (line 1932)
! * atomic_exchangeMODE instruction pattern: Standard Names.   (line 1984)
! * atomic_fetch_addMODE instruction pattern: Standard Names.  (line 2010)
! * atomic_fetch_andMODE instruction pattern: Standard Names.  (line 2010)
! * atomic_fetch_nandMODE instruction pattern: Standard Names. (line 2010)
! * atomic_fetch_orMODE instruction pattern: Standard Names.   (line 2010)
! * atomic_fetch_subMODE instruction pattern: Standard Names.  (line 2010)
! * atomic_fetch_xorMODE instruction pattern: Standard Names.  (line 2010)
! * atomic_loadMODE instruction pattern:   Standard Names.     (line 1963)
! * atomic_nandMODE instruction pattern:   Standard Names.     (line 1996)
! * atomic_nand_fetchMODE instruction pattern: Standard Names. (line 2025)
! * atomic_orMODE instruction pattern:     Standard Names.     (line 1996)
! * atomic_or_fetchMODE instruction pattern: Standard Names.   (line 2025)
! * atomic_storeMODE instruction pattern:  Standard Names.     (line 1973)
! * atomic_subMODE instruction pattern:    Standard Names.     (line 1996)
! * atomic_sub_fetchMODE instruction pattern: Standard Names.  (line 2025)
! * atomic_test_and_set instruction pattern: Standard Names.   (line 2042)
! * atomic_xorMODE instruction pattern:    Standard Names.     (line 1996)
! * atomic_xor_fetchMODE instruction pattern: Standard Names.  (line 2025)
! * attr:                                  Expressions.        (line  163)
  * attr <1>:                              Tagging Insns.      (line   54)
  * attribute expressions:                 Expressions.        (line    6)
  * attribute specifications:              Attr Example.       (line    6)
  * attribute specifications example:      Attr Example.       (line    6)
  * attributes:                            Attributes.         (line    6)
  * attributes, defining:                  Defining Attributes.
                                                               (line    6)
  * attributes, target-specific:           Target Attributes.  (line    6)
! * ATTRIBUTE_ALIGNED_VALUE:               Storage Layout.     (line  177)
! * attr_flag:                             Expressions.        (line  138)
! * autoincrement addressing, availability: Portability.       (line   20)
  * autoincrement/decrement addressing:    Simple Constraints. (line   30)
  * automata_option:                       Processor pipeline description.
!                                                              (line  304)
  * automaton based pipeline description:  Processor pipeline description.
                                                               (line    6)
+ * automaton based pipeline description <1>: Processor pipeline description.
+                                                              (line   49)
  * automaton based scheduler:             Processor pipeline description.
                                                               (line    6)
  * AVOID_CCMODE_COPIES:                   Values in Registers.
!                                                              (line  150)
  * backslash:                             Output Template.    (line   46)
! * barrier:                               Insns.              (line  176)
  * barrier and /f:                        Flags.              (line  107)
  * barrier and /v:                        Flags.              (line   44)
! * BASE_REG_CLASS:                        Register Classes.   (line  111)
  * basic block:                           Basic Blocks.       (line    6)
  * Basic Statements:                      Basic Statements.   (line    6)
  * basic-block.h:                         Control Flow.       (line    6)
  * basic_block:                           Basic Blocks.       (line    6)
+ * BASIC_BLOCK:                           Basic Blocks.       (line   14)
  * BB_HEAD, BB_END:                       Maintaining the CFG.
!                                                              (line   76)
! * bb_seq:                                GIMPLE sequences.   (line   72)
! * BIGGEST_ALIGNMENT:                     Storage Layout.     (line  162)
! * BIGGEST_FIELD_ALIGNMENT:               Storage Layout.     (line  188)
  * BImode:                                Machine Modes.      (line   22)
  * BIND_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * BINFO_TYPE:                            Classes.            (line    6)
  * bit-fields:                            Bit-Fields.         (line    6)
+ * BITFIELD_NBYTES_LIMITED:               Storage Layout.     (line  398)
+ * BITS_BIG_ENDIAN:                       Storage Layout.     (line   11)
+ * BITS_BIG_ENDIAN, effect on sign_extract: Bit-Fields.       (line    8)
+ * BITS_PER_UNIT:                         Machine Modes.      (line  354)
+ * BITS_PER_WORD:                         Storage Layout.     (line   50)
+ * bitwise complement:                    Arithmetic.         (line  154)
+ * bitwise exclusive-or:                  Arithmetic.         (line  168)
+ * bitwise inclusive-or:                  Arithmetic.         (line  163)
+ * bitwise logical-and:                   Arithmetic.         (line  158)
  * BIT_AND_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
  * BIT_IOR_EXPR:                          Unary and Binary Expressions.
*************** Concept Index
*** 48002,48037 ****
                                                               (line    6)
  * BIT_XOR_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
! * BITFIELD_NBYTES_LIMITED:               Storage Layout.     (line  402)
! * BITS_BIG_ENDIAN:                       Storage Layout.     (line   12)
! * BITS_BIG_ENDIAN, effect on sign_extract: Bit-Fields.       (line    8)
! * BITS_PER_UNIT:                         Machine Modes.      (line  355)
! * BITS_PER_WORD:                         Storage Layout.     (line   51)
! * bitwise complement:                    Arithmetic.         (line  153)
! * bitwise exclusive-or:                  Arithmetic.         (line  167)
! * bitwise inclusive-or:                  Arithmetic.         (line  162)
! * bitwise logical-and:                   Arithmetic.         (line  157)
! * BLKmode:                               Machine Modes.      (line  186)
  * BLKmode, and function return values:   Calls.              (line   23)
! * BLOCK_FOR_INSN, gimple_bb:             Maintaining the CFG.
!                                                              (line   29)
! * BLOCK_REG_PADDING:                     Register Arguments. (line  244)
! * blockage instruction pattern:          Standard Names.     (line 1806)
  * Blocks:                                Blocks.             (line    6)
! * BND32mode:                             Machine Modes.      (line  210)
! * BND64mode:                             Machine Modes.      (line  210)
! * bool:                                  Misc.               (line  999)
! * BOOL_TYPE_SIZE:                        Type Layout.        (line   44)
  * BOOLEAN_TYPE:                          Types.              (line    6)
  * branch prediction:                     Profile information.
                                                               (line   24)
! * BRANCH_COST:                           Costs.              (line  105)
! * break_out_memory_refs:                 Addressing Modes.   (line  135)
  * BREAK_STMT:                            Statements for C++. (line    6)
! * BSS_SECTION_ASM_OP:                    Sections.           (line   68)
  * bswap:                                 Arithmetic.         (line  246)
! * bswapM2 instruction pattern:           Standard Names.     (line  605)
! * btruncM2 instruction pattern:          Standard Names.     (line  813)
  * build0:                                Macros and Functions.
                                                               (line   16)
  * build1:                                Macros and Functions.
--- 47546,47572 ----
                                                               (line    6)
  * BIT_XOR_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
! * BLKmode:                               Machine Modes.      (line  185)
  * BLKmode, and function return values:   Calls.              (line   23)
! * blockage instruction pattern:          Standard Names.     (line 1795)
  * Blocks:                                Blocks.             (line    6)
! * BLOCK_FOR_INSN, gimple_bb:             Maintaining the CFG.
!                                                              (line   28)
! * BLOCK_REG_PADDING:                     Register Arguments. (line  242)
! * BND32mode:                             Machine Modes.      (line  209)
! * BND64mode:                             Machine Modes.      (line  209)
! * bool:                                  Misc.               (line  994)
  * BOOLEAN_TYPE:                          Types.              (line    6)
+ * BOOL_TYPE_SIZE:                        Type Layout.        (line   43)
  * branch prediction:                     Profile information.
                                                               (line   24)
! * BRANCH_COST:                           Costs.              (line  104)
! * break_out_memory_refs:                 Addressing Modes.   (line  134)
  * BREAK_STMT:                            Statements for C++. (line    6)
! * BSS_SECTION_ASM_OP:                    Sections.           (line   67)
  * bswap:                                 Arithmetic.         (line  246)
! * bswapM2 instruction pattern:           Standard Names.     (line  599)
! * btruncM2 instruction pattern:          Standard Names.     (line  807)
  * build0:                                Macros and Functions.
                                                               (line   16)
  * build1:                                Macros and Functions.
*************** Concept Index
*** 48046,48072 ****
                                                               (line   21)
  * build6:                                Macros and Functions.
                                                               (line   22)
! * builtin_longjmp instruction pattern:   Standard Names.     (line 1703)
  * builtin_setjmp_receiver instruction pattern: Standard Names.
!                                                              (line 1693)
! * builtin_setjmp_setup instruction pattern: Standard Names.  (line 1682)
! * byte_mode:                             Machine Modes.      (line  368)
! * BYTES_BIG_ENDIAN:                      Storage Layout.     (line   24)
! * BYTES_BIG_ENDIAN, effect on subreg:    Regs and Memory.    (line  221)
  * C statements for assembler output:     Output Statement.   (line    6)
! * C_COMMON_OVERRIDE_OPTIONS:             Run-time Target.    (line  137)
! * c_register_pragma:                     Misc.               (line  410)
! * c_register_pragma_with_expansion:      Misc.               (line  412)
! * cache:                                 GTY Options.        (line  124)
! * call <1>:                              Side Effects.       (line   92)
  * call:                                  Flags.              (line  221)
! * call instruction pattern:              Standard Names.     (line 1343)
  * call usage:                            Calls.              (line   10)
  * call, in call_insn:                    Flags.              (line   33)
  * call, in mem:                          Flags.              (line   81)
  * call-clobbered register:               Register Basics.    (line   35)
  * call-saved register:                   Register Basics.    (line   35)
  * call-used register:                    Register Basics.    (line   35)
  * CALL_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * call_insn:                             Insns.              (line   95)
--- 47581,47612 ----
                                                               (line   21)
  * build6:                                Macros and Functions.
                                                               (line   22)
! * builtin_longjmp instruction pattern:   Standard Names.     (line 1692)
  * builtin_setjmp_receiver instruction pattern: Standard Names.
!                                                              (line 1682)
! * builtin_setjmp_setup instruction pattern: Standard Names.  (line 1671)
! * BYTES_BIG_ENDIAN:                      Storage Layout.     (line   23)
! * BYTES_BIG_ENDIAN, effect on subreg:    Regs and Memory.    (line  219)
! * byte_mode:                             Machine Modes.      (line  367)
  * C statements for assembler output:     Output Statement.   (line    6)
! * cache:                                 GTY Options.        (line  125)
  * call:                                  Flags.              (line  221)
! * call <1>:                              Side Effects.       (line   92)
! * call instruction pattern:              Standard Names.     (line 1337)
  * call usage:                            Calls.              (line   10)
  * call, in call_insn:                    Flags.              (line   33)
  * call, in mem:                          Flags.              (line   81)
  * call-clobbered register:               Register Basics.    (line   35)
+ * call-clobbered register <1>:           Register Basics.    (line   46)
+ * call-clobbered register <2>:           Register Basics.    (line   53)
  * call-saved register:                   Register Basics.    (line   35)
+ * call-saved register <1>:               Register Basics.    (line   46)
+ * call-saved register <2>:               Register Basics.    (line   53)
  * call-used register:                    Register Basics.    (line   35)
+ * call-used register <1>:                Register Basics.    (line   46)
+ * call-used register <2>:                Register Basics.    (line   53)
+ * calling conventions:                   Stack and Calling.  (line    6)
+ * calling functions in RTL:              Calls.              (line    6)
  * CALL_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * call_insn:                             Insns.              (line   95)
*************** Concept Index
*** 48075,48199 ****
  * call_insn and /i:                      Flags.              (line   24)
  * call_insn and /j:                      Flags.              (line  161)
  * call_insn and /s:                      Flags.              (line   49)
  * call_insn and /u:                      Flags.              (line   19)
  * call_insn and /u or /i:                Flags.              (line   29)
  * call_insn and /v:                      Flags.              (line   44)
  * CALL_INSN_FUNCTION_USAGE:              Insns.              (line  101)
! * call_pop instruction pattern:          Standard Names.     (line 1371)
! * CALL_POPS_ARGS:                        Stack Arguments.    (line  139)
! * CALL_REALLY_USED_REGISTERS:            Register Basics.    (line   46)
! * CALL_USED_REGISTERS:                   Register Basics.    (line   35)
  * call_used_regs:                        Register Basics.    (line   59)
! * call_value instruction pattern:        Standard Names.     (line 1363)
! * call_value_pop instruction pattern:    Standard Names.     (line 1371)
! * calling conventions:                   Stack and Calling.  (line    6)
! * calling functions in RTL:              Calls.              (line    6)
! * can_create_pseudo_p:                   Standard Names.     (line   75)
! * can_fallthru:                          Basic Blocks.       (line   67)
  * canadian:                              Configure Terms.    (line    6)
! * CANNOT_CHANGE_MODE_CLASS:              Register Classes.   (line  538)
  * CANNOT_CHANGE_MODE_CLASS and subreg semantics: Regs and Memory.
!                                                              (line  280)
  * canonicalization of instructions:      Insn Canonicalizations.
                                                               (line    6)
  * canonicalize_funcptr_for_compare instruction pattern: Standard Names.
!                                                              (line 1534)
  * caret:                                 Multi-Alternative.  (line   53)
! * CASE_VECTOR_MODE:                      Misc.               (line   27)
! * CASE_VECTOR_PC_RELATIVE:               Misc.               (line   40)
! * CASE_VECTOR_SHORTEN_MODE:              Misc.               (line   31)
! * casesi instruction pattern:            Standard Names.     (line 1465)
! * cbranchMODE4 instruction pattern:      Standard Names.     (line 1332)
  * cc0 <1>:                               CC0 Condition Codes.
                                                               (line    6)
- * cc0:                                   Regs and Memory.    (line  307)
  * cc0, RTL sharing:                      Sharing.            (line   27)
! * cc0_rtx:                               Regs and Memory.    (line  333)
! * CC1_SPEC:                              Driver.             (line   56)
! * CC1PLUS_SPEC:                          Driver.             (line   64)
  * cc_status:                             CC0 Condition Codes.
                                                               (line    6)
  * CC_STATUS_MDEP:                        CC0 Condition Codes.
!                                                              (line   17)
  * CC_STATUS_MDEP_INIT:                   CC0 Condition Codes.
!                                                              (line   23)
! * CCmode <1>:                            MODE_CC Condition Codes.
!                                                              (line    6)
! * CCmode:                                Machine Modes.      (line  179)
! * CDImode:                               Machine Modes.      (line  205)
  * CEIL_DIV_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
  * CEIL_MOD_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
! * ceilM2 instruction pattern:            Standard Names.     (line  828)
! * CFA_FRAME_BASE_OFFSET:                 Frame Layout.       (line  224)
  * CFG verification:                      Maintaining the CFG.
!                                                              (line  119)
  * CFG, Control Flow Graph:               Control Flow.       (line    6)
  * cfghooks.h:                            Maintaining the CFG.
                                                               (line    6)
! * cgraph_finalize_function:              Parsing pass.       (line   52)
! * chain_circular:                        GTY Options.        (line  154)
! * chain_next:                            GTY Options.        (line  154)
! * chain_prev:                            GTY Options.        (line  154)
  * change_address:                        Standard Names.     (line   47)
! * CHAR_TYPE_SIZE:                        Type Layout.        (line   39)
! * check_stack instruction pattern:       Standard Names.     (line 1621)
! * CHImode:                               Machine Modes.      (line  205)
  * CILK_PLUS:                             Cilk Plus Transformation.
                                                               (line    6)
  * class definitions, register:           Register Classes.   (line    6)
  * class preference constraints:          Class Preferences.  (line    6)
  * class, scope:                          Classes.            (line    6)
- * CLASS_MAX_NREGS:                       Register Classes.   (line  526)
- * CLASS_TYPE_P:                          Types for C++.      (line   65)
  * classes of RTX codes:                  RTL Classes.        (line    6)
  * CLASSTYPE_DECLARED_CLASS:              Classes.            (line    6)
  * CLASSTYPE_HAS_MUTABLE:                 Classes.            (line   85)
  * CLASSTYPE_NON_POD_P:                   Classes.            (line   90)
  * CLEANUP_DECL:                          Statements for C++. (line    6)
  * CLEANUP_EXPR:                          Statements for C++. (line    6)
  * CLEANUP_POINT_EXPR:                    Unary and Binary Expressions.
                                                               (line    6)
  * CLEANUP_STMT:                          Statements for C++. (line    6)
! * Cleanups:                              Cleanups.           (line    6)
! * clear_cache instruction pattern:       Standard Names.     (line 2113)
! * CLEAR_INSN_CACHE:                      Trampolines.        (line   99)
! * CLEAR_RATIO:                           Costs.              (line  205)
  * clobber:                               Side Effects.       (line  106)
  * clrsb:                                 Arithmetic.         (line  215)
! * clrsbM2 instruction pattern:           Standard Names.     (line  891)
  * clz:                                   Arithmetic.         (line  222)
! * CLZ_DEFINED_VALUE_AT_ZERO:             Misc.               (line  305)
! * clzM2 instruction pattern:             Standard Names.     (line  907)
! * cmpmemM instruction pattern:           Standard Names.     (line 1072)
! * cmpstrM instruction pattern:           Standard Names.     (line 1051)
! * cmpstrnM instruction pattern:          Standard Names.     (line 1038)
  * code generation RTL sequences:         Expander Definitions.
                                                               (line    6)
  * code iterators in .md files:           Code Iterators.     (line    6)
! * CODE_LABEL:                            Basic Blocks.       (line   50)
  * code_label:                            Insns.              (line  125)
  * code_label and /i:                     Flags.              (line   59)
  * code_label and /v:                     Flags.              (line   44)
  * CODE_LABEL_NUMBER:                     Insns.              (line  125)
! * codes, RTL expression:                 RTL Objects.        (line   47)
! * COImode:                               Machine Modes.      (line  205)
  * COLLECT2_HOST_INITIALIZATION:          Host Misc.          (line   32)
! * COLLECT_EXPORT_LIST:                   Misc.               (line  871)
  * COLLECT_SHARED_FINI_FUNC:              Macros for Initialization.
!                                                              (line   44)
  * COLLECT_SHARED_INIT_FUNC:              Macros for Initialization.
!                                                              (line   33)
  * commit_edge_insertions:                Maintaining the CFG.
!                                                              (line  107)
! * compare:                               Arithmetic.         (line   43)
  * compare, canonicalization of:          Insn Canonicalizations.
!                                                              (line   37)
  * comparison_operator:                   Machine-Independent Predicates.
!                                                              (line  111)
  * compiler passes and files:             Passes.             (line    6)
! * complement, bitwise:                   Arithmetic.         (line  153)
  * COMPLEX_CST:                           Constant expressions.
                                                               (line    6)
  * COMPLEX_EXPR:                          Unary and Binary Expressions.
--- 47615,47739 ----
  * call_insn and /i:                      Flags.              (line   24)
  * call_insn and /j:                      Flags.              (line  161)
  * call_insn and /s:                      Flags.              (line   49)
+ * call_insn and /s <1>:                  Flags.              (line  148)
  * call_insn and /u:                      Flags.              (line   19)
+ * call_insn and /u <1>:                  Flags.              (line   39)
  * call_insn and /u or /i:                Flags.              (line   29)
  * call_insn and /v:                      Flags.              (line   44)
  * CALL_INSN_FUNCTION_USAGE:              Insns.              (line  101)
! * call_pop instruction pattern:          Standard Names.     (line 1365)
! * CALL_POPS_ARGS:                        Stack Arguments.    (line  138)
! * CALL_REALLY_USED_REGISTERS:            Register Basics.    (line   45)
! * CALL_USED_REGISTERS:                   Register Basics.    (line   34)
  * call_used_regs:                        Register Basics.    (line   59)
! * call_value instruction pattern:        Standard Names.     (line 1357)
! * call_value_pop instruction pattern:    Standard Names.     (line 1365)
  * canadian:                              Configure Terms.    (line    6)
! * CANNOT_CHANGE_MODE_CLASS:              Register Classes.   (line  533)
  * CANNOT_CHANGE_MODE_CLASS and subreg semantics: Regs and Memory.
!                                                              (line  276)
  * canonicalization of instructions:      Insn Canonicalizations.
                                                               (line    6)
  * canonicalize_funcptr_for_compare instruction pattern: Standard Names.
!                                                              (line 1526)
! * can_create_pseudo_p:                   Standard Names.     (line   75)
! * can_fallthru:                          Basic Blocks.       (line   67)
  * caret:                                 Multi-Alternative.  (line   53)
! * casesi instruction pattern:            Standard Names.     (line 1458)
! * CASE_VECTOR_MODE:                      Misc.               (line   26)
! * CASE_VECTOR_PC_RELATIVE:               Misc.               (line   39)
! * CASE_VECTOR_SHORTEN_MODE:              Misc.               (line   30)
! * cbranchMODE4 instruction pattern:      Standard Names.     (line 1326)
! * cc0:                                   Regs and Memory.    (line  303)
  * cc0 <1>:                               CC0 Condition Codes.
                                                               (line    6)
  * cc0, RTL sharing:                      Sharing.            (line   27)
! * cc0_rtx:                               Regs and Memory.    (line  329)
! * CC1PLUS_SPEC:                          Driver.             (line   63)
! * CC1_SPEC:                              Driver.             (line   55)
! * CCmode:                                Machine Modes.      (line  178)
! * CCmode <1>:                            MODE_CC Condition Codes.
!                                                              (line    6)
  * cc_status:                             CC0 Condition Codes.
                                                               (line    6)
  * CC_STATUS_MDEP:                        CC0 Condition Codes.
!                                                              (line   16)
  * CC_STATUS_MDEP_INIT:                   CC0 Condition Codes.
!                                                              (line   22)
! * CDImode:                               Machine Modes.      (line  204)
! * ceilM2 instruction pattern:            Standard Names.     (line  822)
  * CEIL_DIV_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
  * CEIL_MOD_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
! * CFA_FRAME_BASE_OFFSET:                 Frame Layout.       (line  222)
  * CFG verification:                      Maintaining the CFG.
!                                                              (line  117)
  * CFG, Control Flow Graph:               Control Flow.       (line    6)
  * cfghooks.h:                            Maintaining the CFG.
                                                               (line    6)
! * cgraph_finalize_function:              Parsing pass.       (line   51)
! * chain_circular:                        GTY Options.        (line  158)
! * chain_next:                            GTY Options.        (line  158)
! * chain_prev:                            GTY Options.        (line  158)
  * change_address:                        Standard Names.     (line   47)
! * CHAR_TYPE_SIZE:                        Type Layout.        (line   38)
! * check_stack instruction pattern:       Standard Names.     (line 1612)
! * CHImode:                               Machine Modes.      (line  204)
  * CILK_PLUS:                             Cilk Plus Transformation.
                                                               (line    6)
  * class definitions, register:           Register Classes.   (line    6)
  * class preference constraints:          Class Preferences.  (line    6)
  * class, scope:                          Classes.            (line    6)
  * classes of RTX codes:                  RTL Classes.        (line    6)
  * CLASSTYPE_DECLARED_CLASS:              Classes.            (line    6)
  * CLASSTYPE_HAS_MUTABLE:                 Classes.            (line   85)
  * CLASSTYPE_NON_POD_P:                   Classes.            (line   90)
+ * CLASS_MAX_NREGS:                       Register Classes.   (line  521)
+ * CLASS_TYPE_P:                          Types for C++.      (line   63)
+ * Cleanups:                              Cleanups.           (line    6)
  * CLEANUP_DECL:                          Statements for C++. (line    6)
  * CLEANUP_EXPR:                          Statements for C++. (line    6)
  * CLEANUP_POINT_EXPR:                    Unary and Binary Expressions.
                                                               (line    6)
  * CLEANUP_STMT:                          Statements for C++. (line    6)
! * clear_cache instruction pattern:       Standard Names.     (line 2102)
! * CLEAR_INSN_CACHE:                      Trampolines.        (line   98)
! * CLEAR_RATIO:                           Costs.              (line  204)
  * clobber:                               Side Effects.       (line  106)
  * clrsb:                                 Arithmetic.         (line  215)
! * clrsbM2 instruction pattern:           Standard Names.     (line  885)
  * clz:                                   Arithmetic.         (line  222)
! * clzM2 instruction pattern:             Standard Names.     (line  901)
! * CLZ_DEFINED_VALUE_AT_ZERO:             Misc.               (line  304)
! * cmpmemM instruction pattern:           Standard Names.     (line 1066)
! * cmpstrM instruction pattern:           Standard Names.     (line 1045)
! * cmpstrnM instruction pattern:          Standard Names.     (line 1032)
  * code generation RTL sequences:         Expander Definitions.
                                                               (line    6)
  * code iterators in .md files:           Code Iterators.     (line    6)
! * codes, RTL expression:                 RTL Objects.        (line   47)
  * code_label:                            Insns.              (line  125)
+ * CODE_LABEL:                            Basic Blocks.       (line   50)
  * code_label and /i:                     Flags.              (line   59)
  * code_label and /v:                     Flags.              (line   44)
  * CODE_LABEL_NUMBER:                     Insns.              (line  125)
! * COImode:                               Machine Modes.      (line  204)
  * COLLECT2_HOST_INITIALIZATION:          Host Misc.          (line   32)
! * COLLECT_EXPORT_LIST:                   Misc.               (line  867)
  * COLLECT_SHARED_FINI_FUNC:              Macros for Initialization.
!                                                              (line   43)
  * COLLECT_SHARED_INIT_FUNC:              Macros for Initialization.
!                                                              (line   32)
  * commit_edge_insertions:                Maintaining the CFG.
!                                                              (line  105)
! * compare:                               Arithmetic.         (line   46)
  * compare, canonicalization of:          Insn Canonicalizations.
!                                                              (line   36)
  * comparison_operator:                   Machine-Independent Predicates.
!                                                              (line  110)
  * compiler passes and files:             Passes.             (line    6)
! * complement, bitwise:                   Arithmetic.         (line  154)
  * COMPLEX_CST:                           Constant expressions.
                                                               (line    6)
  * COMPLEX_EXPR:                          Unary and Binary Expressions.
*************** Concept Index
*** 48208,48226 ****
  * COMPOUND_LITERAL_EXPR:                 Unary and Binary Expressions.
                                                               (line    6)
  * COMPOUND_LITERAL_EXPR_DECL:            Unary and Binary Expressions.
!                                                              (line  378)
  * COMPOUND_LITERAL_EXPR_DECL_EXPR:       Unary and Binary Expressions.
!                                                              (line  378)
! * computed jump:                         Edges.              (line  128)
  * computing the length of an insn:       Insn Lengths.       (line    6)
! * concat:                                Regs and Memory.    (line  385)
! * concatn:                               Regs and Memory.    (line  391)
  * cond:                                  Comparisons.        (line   90)
  * cond and attributes:                   Expressions.        (line   37)
! * cond_exec:                             Side Effects.       (line  254)
! * COND_EXPR:                             Unary and Binary Expressions.
!                                                              (line    6)
! * condition code register:               Regs and Memory.    (line  307)
  * condition code status:                 Condition Code.     (line    6)
  * condition codes:                       Comparisons.        (line   20)
  * conditional execution:                 Conditional Execution.
--- 47748,47763 ----
  * COMPOUND_LITERAL_EXPR:                 Unary and Binary Expressions.
                                                               (line    6)
  * COMPOUND_LITERAL_EXPR_DECL:            Unary and Binary Expressions.
!                                                              (line  377)
  * COMPOUND_LITERAL_EXPR_DECL_EXPR:       Unary and Binary Expressions.
!                                                              (line  377)
! * computed jump:                         Edges.              (line  127)
  * computing the length of an insn:       Insn Lengths.       (line    6)
! * concat:                                Regs and Memory.    (line  381)
! * concatn:                               Regs and Memory.    (line  387)
  * cond:                                  Comparisons.        (line   90)
  * cond and attributes:                   Expressions.        (line   37)
! * condition code register:               Regs and Memory.    (line  303)
  * condition code status:                 Condition Code.     (line    6)
  * condition codes:                       Comparisons.        (line   20)
  * conditional execution:                 Conditional Execution.
*************** Concept Index
*** 48228,48258 ****
  * Conditional Expressions:               Conditional Expressions.
                                                               (line    6)
  * conditions, in patterns:               Patterns.           (line   43)
! * configuration file <1>:                Host Misc.          (line    6)
  * configuration file:                    Filesystem.         (line    6)
  * configure terms:                       Configure Terms.    (line    6)
  * CONJ_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * const:                                 Constants.          (line  140)
- * CONST0_RTX:                            Constants.          (line  160)
  * const0_rtx:                            Constants.          (line   21)
! * CONST1_RTX:                            Constants.          (line  160)
  * const1_rtx:                            Constants.          (line   21)
! * CONST2_RTX:                            Constants.          (line  160)
  * const2_rtx:                            Constants.          (line   21)
  * CONST_DECL:                            Declarations.       (line    6)
  * const_double:                          Constants.          (line   37)
  * const_double, RTL sharing:             Sharing.            (line   29)
  * CONST_DOUBLE_LOW:                      Constants.          (line   54)
  * const_double_operand:                  Machine-Independent Predicates.
!                                                              (line   21)
  * const_fixed:                           Constants.          (line   93)
  * const_int:                             Constants.          (line    8)
  * const_int and attribute tests:         Expressions.        (line   47)
  * const_int and attributes:              Expressions.        (line   10)
  * const_int, RTL sharing:                Sharing.            (line   23)
  * const_int_operand:                     Machine-Independent Predicates.
!                                                              (line   16)
  * const_string:                          Constants.          (line  112)
  * const_string and attributes:           Expressions.        (line   20)
  * const_true_rtx:                        Constants.          (line   31)
--- 47765,47825 ----
  * Conditional Expressions:               Conditional Expressions.
                                                               (line    6)
  * conditions, in patterns:               Patterns.           (line   43)
! * cond_exec:                             Side Effects.       (line  254)
! * COND_EXPR:                             Unary and Binary Expressions.
!                                                              (line    6)
  * configuration file:                    Filesystem.         (line    6)
+ * configuration file <1>:                Host Misc.          (line    6)
  * configure terms:                       Configure Terms.    (line    6)
  * CONJ_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * const:                                 Constants.          (line  140)
  * const0_rtx:                            Constants.          (line   21)
! * CONST0_RTX:                            Constants.          (line  160)
  * const1_rtx:                            Constants.          (line   21)
! * CONST1_RTX:                            Constants.          (line  160)
  * const2_rtx:                            Constants.          (line   21)
+ * CONST2_RTX:                            Constants.          (line  160)
+ * constant attributes:                   Constant Attributes.
+                                                              (line    6)
+ * constant definitions:                  Constant Definitions.
+                                                              (line    6)
+ * constants in constraints:              Simple Constraints. (line   68)
+ * CONSTANT_ADDRESS_P:                    Addressing Modes.   (line   28)
+ * CONSTANT_ALIGNMENT:                    Storage Layout.     (line  241)
+ * CONSTANT_P:                            Addressing Modes.   (line   35)
+ * CONSTANT_POOL_ADDRESS_P:               Flags.              (line   10)
+ * CONSTANT_POOL_BEFORE_FUNCTION:         Data Output.        (line   68)
+ * constm1_rtx:                           Constants.          (line   21)
+ * constraint modifier characters:        Modifiers.          (line    6)
+ * constraint, matching:                  Simple Constraints. (line  140)
+ * constraints:                           Constraints.        (line    6)
+ * constraints, defining:                 Define Constraints. (line    6)
+ * constraints, machine specific:         Machine Constraints.
+                                                              (line    6)
+ * constraints, testing:                  C Constraint Interface.
+                                                              (line    6)
+ * constraint_num:                        C Constraint Interface.
+                                                              (line   30)
+ * constraint_satisfied_p:                C Constraint Interface.
+                                                              (line   42)
+ * CONSTRUCTOR:                           Unary and Binary Expressions.
+                                                              (line    6)
+ * constructors, automatic calls:         Collect2.           (line   15)
+ * constructors, output of:               Initialization.     (line    6)
  * CONST_DECL:                            Declarations.       (line    6)
  * const_double:                          Constants.          (line   37)
  * const_double, RTL sharing:             Sharing.            (line   29)
  * CONST_DOUBLE_LOW:                      Constants.          (line   54)
  * const_double_operand:                  Machine-Independent Predicates.
!                                                              (line   20)
  * const_fixed:                           Constants.          (line   93)
  * const_int:                             Constants.          (line    8)
  * const_int and attribute tests:         Expressions.        (line   47)
  * const_int and attributes:              Expressions.        (line   10)
  * const_int, RTL sharing:                Sharing.            (line   23)
  * const_int_operand:                     Machine-Independent Predicates.
!                                                              (line   15)
  * const_string:                          Constants.          (line  112)
  * const_string and attributes:           Expressions.        (line   20)
  * const_true_rtx:                        Constants.          (line   31)
*************** Concept Index
*** 48262,48294 ****
  * CONST_WIDE_INT_ELT:                    Constants.          (line   89)
  * CONST_WIDE_INT_NUNITS:                 Constants.          (line   84)
  * CONST_WIDE_INT_VEC:                    Constants.          (line   80)
- * constant attributes:                   Constant Attributes.
-                                                              (line    6)
- * constant definitions:                  Constant Definitions.
-                                                              (line    6)
- * CONSTANT_ADDRESS_P:                    Addressing Modes.   (line   29)
- * CONSTANT_ALIGNMENT:                    Storage Layout.     (line  245)
- * CONSTANT_P:                            Addressing Modes.   (line   36)
- * CONSTANT_POOL_ADDRESS_P:               Flags.              (line   10)
- * CONSTANT_POOL_BEFORE_FUNCTION:         Data Output.        (line   69)
- * constants in constraints:              Simple Constraints. (line   70)
- * constm1_rtx:                           Constants.          (line   21)
- * constraint modifier characters:        Modifiers.          (line    6)
- * constraint, matching:                  Simple Constraints. (line  142)
- * constraint_num:                        C Constraint Interface.
-                                                              (line   31)
- * constraint_satisfied_p:                C Constraint Interface.
-                                                              (line   44)
- * constraints:                           Constraints.        (line    6)
- * constraints, defining:                 Define Constraints. (line    6)
- * constraints, machine specific:         Machine Constraints.
-                                                              (line    6)
- * constraints, testing:                  C Constraint Interface.
-                                                              (line    6)
- * CONSTRUCTOR:                           Unary and Binary Expressions.
-                                                              (line    6)
- * constructors, automatic calls:         Collect2.           (line   15)
- * constructors, output of:               Initialization.     (line    6)
  * container:                             Containers.         (line    6)
  * CONTINUE_STMT:                         Statements for C++. (line    6)
  * contributors:                          Contributors.       (line    6)
--- 47829,47834 ----
*************** Concept Index
*** 48298,48429 ****
  * conversions:                           Conversions.        (line    6)
  * CONVERT_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
! * copy_rtx:                              Addressing Modes.   (line  190)
  * copy_rtx_if_shared:                    Sharing.            (line   64)
! * copysignM3 instruction pattern:        Standard Names.     (line  871)
! * cosM2 instruction pattern:             Standard Names.     (line  668)
  * costs of instructions:                 Costs.              (line    6)
! * CP_INTEGRAL_TYPE:                      Types for C++.      (line   57)
  * cp_namespace_decls:                    Namespaces.         (line   49)
  * CP_TYPE_CONST_NON_VOLATILE_P:          Types for C++.      (line   33)
  * CP_TYPE_CONST_P:                       Types for C++.      (line   24)
  * cp_type_quals:                         Types for C++.      (line    6)
  * CP_TYPE_RESTRICT_P:                    Types for C++.      (line   30)
  * CP_TYPE_VOLATILE_P:                    Types for C++.      (line   27)
! * CPLUSPLUS_CPP_SPEC:                    Driver.             (line   51)
! * CPP_SPEC:                              Driver.             (line   44)
! * CQImode:                               Machine Modes.      (line  205)
  * cross compilation and floating point:  Floating Point.     (line    6)
! * CRT_CALL_STATIC_FUNCTION:              Sections.           (line  121)
! * crtl->args.pops_args:                  Function Entry.     (line  106)
! * crtl->args.pretend_args_size:          Function Entry.     (line  112)
  * crtl->outgoing_args_size:              Stack Arguments.    (line   48)
  * CRTSTUFF_T_CFLAGS:                     Target Fragment.    (line   15)
  * CRTSTUFF_T_CFLAGS_S:                   Target Fragment.    (line   19)
! * CSImode:                               Machine Modes.      (line  205)
! * cstoreMODE4 instruction pattern:       Standard Names.     (line 1293)
! * CTImode:                               Machine Modes.      (line  205)
! * ctrapMM4 instruction pattern:          Standard Names.     (line 1775)
  * ctz:                                   Arithmetic.         (line  230)
! * CTZ_DEFINED_VALUE_AT_ZERO:             Misc.               (line  306)
! * ctzM2 instruction pattern:             Standard Names.     (line  922)
! * CUMULATIVE_ARGS:                       Register Arguments. (line  142)
! * current_function_is_leaf:              Leaf Functions.     (line   51)
! * current_function_uses_only_leaf_regs:  Leaf Functions.     (line   51)
  * current_insn_predicate:                Conditional Execution.
                                                               (line   27)
! * DAmode:                                Machine Modes.      (line  155)
  * data bypass:                           Processor pipeline description.
!                                                              (line  106)
  * data dependence delays:                Processor pipeline description.
                                                               (line    6)
  * Data Dependency Analysis:              Dependency analysis.
                                                               (line    6)
  * data structures:                       Per-Function Data.  (line    6)
! * DATA_ABI_ALIGNMENT:                    Storage Layout.     (line  237)
! * DATA_ALIGNMENT:                        Storage Layout.     (line  224)
! * DATA_SECTION_ASM_OP:                   Sections.           (line   53)
! * DBR_OUTPUT_SEQEND:                     Instruction Output. (line  135)
! * dbr_sequence_length:                   Instruction Output. (line  134)
! * DBX_BLOCKS_FUNCTION_RELATIVE:          DBX Options.        (line  103)
! * DBX_CONTIN_CHAR:                       DBX Options.        (line   66)
! * DBX_CONTIN_LENGTH:                     DBX Options.        (line   56)
! * DBX_DEBUGGING_INFO:                    DBX Options.        (line    9)
! * DBX_FUNCTION_FIRST:                    DBX Options.        (line   97)
! * DBX_LINES_FUNCTION_RELATIVE:           DBX Options.        (line  109)
! * DBX_NO_XREFS:                          DBX Options.        (line   50)
! * DBX_OUTPUT_MAIN_SOURCE_FILE_END:       File Names and DBX. (line   34)
! * DBX_OUTPUT_MAIN_SOURCE_FILENAME:       File Names and DBX. (line    9)
  * DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END: File Names and DBX.
!                                                              (line   42)
! * DBX_OUTPUT_SOURCE_LINE:                DBX Hooks.          (line    9)
! * DBX_REGISTER_NUMBER:                   All Debuggers.      (line    9)
! * DBX_REGPARM_STABS_CODE:                DBX Options.        (line   87)
! * DBX_REGPARM_STABS_LETTER:              DBX Options.        (line   92)
! * DBX_STATIC_CONST_VAR_CODE:             DBX Options.        (line   82)
! * DBX_STATIC_STAB_DATA_SECTION:          DBX Options.        (line   73)
! * DBX_TYPE_DECL_STABS_CODE:              DBX Options.        (line   78)
! * DBX_USE_BINCL:                         DBX Options.        (line  115)
! * DCmode:                                Machine Modes.      (line  200)
  * DDmode:                                Machine Modes.      (line   93)
  * De Morgan's law:                       Insn Canonicalizations.
!                                                              (line   52)
  * dead_or_set_p:                         define_peephole.    (line   65)
  * debug_expr:                            Debug Information.  (line   22)
  * DEBUG_EXPR_DECL:                       Declarations.       (line    6)
! * debug_insn:                            Insns.              (line  239)
! * DEBUG_SYMS_TEXT:                       DBX Options.        (line   25)
! * DEBUGGER_ARG_OFFSET:                   All Debuggers.      (line   37)
! * DEBUGGER_AUTO_OFFSET:                  All Debuggers.      (line   28)
  * decimal float library:                 Decimal float library routines.
                                                               (line    6)
  * DECL_ALIGN:                            Declarations.       (line    6)
  * DECL_ANTICIPATED:                      Functions for C++.  (line   42)
  * DECL_ARGUMENTS:                        Function Basics.    (line   36)
  * DECL_ARRAY_DELETE_OPERATOR_P:          Functions for C++.  (line  158)
- * DECL_ARTIFICIAL <1>:                   Function Properties.
-                                                              (line   47)
- * DECL_ARTIFICIAL <2>:                   Function Basics.    (line    6)
  * DECL_ARTIFICIAL:                       Working with declarations.
                                                               (line   24)
  * DECL_ASSEMBLER_NAME:                   Function Basics.    (line    6)
! * DECL_ATTRIBUTES:                       Attributes.         (line   22)
  * DECL_BASE_CONSTRUCTOR_P:               Functions for C++.  (line   88)
  * DECL_COMPLETE_CONSTRUCTOR_P:           Functions for C++.  (line   84)
  * DECL_COMPLETE_DESTRUCTOR_P:            Functions for C++.  (line   98)
- * DECL_CONST_MEMFUNC_P:                  Functions for C++.  (line   71)
  * DECL_CONSTRUCTOR_P:                    Functions for C++.  (line   77)
  * DECL_CONTEXT:                          Namespaces.         (line   31)
  * DECL_CONV_FN_P:                        Functions for C++.  (line  105)
  * DECL_COPY_CONSTRUCTOR_P:               Functions for C++.  (line   92)
  * DECL_DESTRUCTOR_P:                     Functions for C++.  (line   95)
! * DECL_EXTERN_C_FUNCTION_P:              Functions for C++.  (line   46)
  * DECL_EXTERNAL <1>:                     Function Properties.
                                                               (line   25)
! * DECL_EXTERNAL:                         Declarations.       (line    6)
  * DECL_FUNCTION_MEMBER_P:                Functions for C++.  (line   61)
  * DECL_FUNCTION_SPECIFIC_OPTIMIZATION <1>: Function Properties.
                                                               (line   61)
! * DECL_FUNCTION_SPECIFIC_OPTIMIZATION:   Function Basics.    (line    6)
  * DECL_FUNCTION_SPECIFIC_TARGET <1>:     Function Properties.
                                                               (line   55)
- * DECL_FUNCTION_SPECIFIC_TARGET:         Function Basics.    (line    6)
  * DECL_GLOBAL_CTOR_P:                    Functions for C++.  (line  108)
  * DECL_GLOBAL_DTOR_P:                    Functions for C++.  (line  112)
- * DECL_INITIAL <1>:                      Function Basics.    (line   51)
  * DECL_INITIAL:                          Declarations.       (line    6)
  * DECL_LINKONCE_P:                       Functions for C++.  (line   50)
  * DECL_LOCAL_FUNCTION_P:                 Functions for C++.  (line   38)
  * DECL_MAIN_P:                           Functions for C++.  (line   34)
- * DECL_NAME <1>:                         Namespaces.         (line   20)
- * DECL_NAME <2>:                         Function Basics.    (line    6)
  * DECL_NAME:                             Working with declarations.
                                                               (line    7)
  * DECL_NAMESPACE_ALIAS:                  Namespaces.         (line   35)
  * DECL_NAMESPACE_STD_P:                  Namespaces.         (line   45)
- * DECL_NON_THUNK_FUNCTION_P:             Functions for C++.  (line  138)
  * DECL_NONCONVERTING_P:                  Functions for C++.  (line   80)
  * DECL_NONSTATIC_MEMBER_FUNCTION_P:      Functions for C++.  (line   68)
  * DECL_OVERLOADED_OPERATOR_P:            Functions for C++.  (line  102)
  * DECL_PURE_P:                           Function Properties.
                                                               (line   40)
--- 47838,47980 ----
  * conversions:                           Conversions.        (line    6)
  * CONVERT_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
! * copysignM3 instruction pattern:        Standard Names.     (line  865)
! * copy_rtx:                              Addressing Modes.   (line  189)
  * copy_rtx_if_shared:                    Sharing.            (line   64)
! * cosM2 instruction pattern:             Standard Names.     (line  662)
  * costs of instructions:                 Costs.              (line    6)
! * CPLUSPLUS_CPP_SPEC:                    Driver.             (line   50)
! * CPP_SPEC:                              Driver.             (line   43)
! * CP_INTEGRAL_TYPE:                      Types for C++.      (line   55)
  * cp_namespace_decls:                    Namespaces.         (line   49)
  * CP_TYPE_CONST_NON_VOLATILE_P:          Types for C++.      (line   33)
  * CP_TYPE_CONST_P:                       Types for C++.      (line   24)
  * cp_type_quals:                         Types for C++.      (line    6)
+ * cp_type_quals <1>:                     Types for C++.      (line   16)
  * CP_TYPE_RESTRICT_P:                    Types for C++.      (line   30)
  * CP_TYPE_VOLATILE_P:                    Types for C++.      (line   27)
! * CQImode:                               Machine Modes.      (line  204)
  * cross compilation and floating point:  Floating Point.     (line    6)
! * crtl->args.pops_args:                  Function Entry.     (line  104)
! * crtl->args.pretend_args_size:          Function Entry.     (line  110)
  * crtl->outgoing_args_size:              Stack Arguments.    (line   48)
  * CRTSTUFF_T_CFLAGS:                     Target Fragment.    (line   15)
  * CRTSTUFF_T_CFLAGS_S:                   Target Fragment.    (line   19)
! * CRT_CALL_STATIC_FUNCTION:              Sections.           (line  120)
! * CSImode:                               Machine Modes.      (line  204)
! * cstoreMODE4 instruction pattern:       Standard Names.     (line 1287)
! * CTImode:                               Machine Modes.      (line  204)
! * ctrapMM4 instruction pattern:          Standard Names.     (line 1764)
  * ctz:                                   Arithmetic.         (line  230)
! * ctzM2 instruction pattern:             Standard Names.     (line  916)
! * CTZ_DEFINED_VALUE_AT_ZERO:             Misc.               (line  305)
! * CUMULATIVE_ARGS:                       Register Arguments. (line  140)
! * current_function_is_leaf:              Leaf Functions.     (line   50)
! * current_function_uses_only_leaf_regs:  Leaf Functions.     (line   50)
  * current_insn_predicate:                Conditional Execution.
                                                               (line   27)
! * C_COMMON_OVERRIDE_OPTIONS:             Run-time Target.    (line  136)
! * c_register_pragma:                     Misc.               (line  407)
! * c_register_pragma_with_expansion:      Misc.               (line  409)
! * DAmode:                                Machine Modes.      (line  154)
  * data bypass:                           Processor pipeline description.
!                                                              (line  105)
! * data bypass <1>:                       Processor pipeline description.
!                                                              (line  196)
  * data dependence delays:                Processor pipeline description.
                                                               (line    6)
  * Data Dependency Analysis:              Dependency analysis.
                                                               (line    6)
  * data structures:                       Per-Function Data.  (line    6)
! * DATA_ABI_ALIGNMENT:                    Storage Layout.     (line  233)
! * DATA_ALIGNMENT:                        Storage Layout.     (line  220)
! * DATA_SECTION_ASM_OP:                   Sections.           (line   52)
! * DBR_OUTPUT_SEQEND:                     Instruction Output. (line  133)
! * dbr_sequence_length:                   Instruction Output. (line  133)
! * DBX_BLOCKS_FUNCTION_RELATIVE:          DBX Options.        (line  100)
! * DBX_CONTIN_CHAR:                       DBX Options.        (line   63)
! * DBX_CONTIN_LENGTH:                     DBX Options.        (line   53)
! * DBX_DEBUGGING_INFO:                    DBX Options.        (line    8)
! * DBX_FUNCTION_FIRST:                    DBX Options.        (line   94)
! * DBX_LINES_FUNCTION_RELATIVE:           DBX Options.        (line  106)
! * DBX_NO_XREFS:                          DBX Options.        (line   47)
! * DBX_OUTPUT_MAIN_SOURCE_FILENAME:       File Names and DBX. (line    8)
! * DBX_OUTPUT_MAIN_SOURCE_FILE_END:       File Names and DBX. (line   33)
  * DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END: File Names and DBX.
!                                                              (line   41)
! * DBX_OUTPUT_SOURCE_LINE:                DBX Hooks.          (line    8)
! * DBX_REGISTER_NUMBER:                   All Debuggers.      (line    8)
! * DBX_REGPARM_STABS_CODE:                DBX Options.        (line   84)
! * DBX_REGPARM_STABS_LETTER:              DBX Options.        (line   89)
! * DBX_STATIC_CONST_VAR_CODE:             DBX Options.        (line   79)
! * DBX_STATIC_STAB_DATA_SECTION:          DBX Options.        (line   70)
! * DBX_TYPE_DECL_STABS_CODE:              DBX Options.        (line   75)
! * DBX_USE_BINCL:                         DBX Options.        (line  112)
! * DCmode:                                Machine Modes.      (line  199)
  * DDmode:                                Machine Modes.      (line   93)
  * De Morgan's law:                       Insn Canonicalizations.
!                                                              (line   51)
  * dead_or_set_p:                         define_peephole.    (line   65)
+ * DEBUGGER_ARG_OFFSET:                   All Debuggers.      (line   36)
+ * DEBUGGER_AUTO_OFFSET:                  All Debuggers.      (line   27)
  * debug_expr:                            Debug Information.  (line   22)
  * DEBUG_EXPR_DECL:                       Declarations.       (line    6)
! * debug_insn:                            Insns.              (line  236)
! * DEBUG_SYMS_TEXT:                       DBX Options.        (line   24)
  * decimal float library:                 Decimal float library routines.
                                                               (line    6)
+ * declaration:                           Declarations.       (line    6)
+ * declarations, RTL:                     RTL Declarations.   (line    6)
+ * DECLARE_LIBRARY_RENAMES:               Library Calls.      (line    8)
  * DECL_ALIGN:                            Declarations.       (line    6)
  * DECL_ANTICIPATED:                      Functions for C++.  (line   42)
  * DECL_ARGUMENTS:                        Function Basics.    (line   36)
  * DECL_ARRAY_DELETE_OPERATOR_P:          Functions for C++.  (line  158)
  * DECL_ARTIFICIAL:                       Working with declarations.
                                                               (line   24)
+ * DECL_ARTIFICIAL <1>:                   Function Basics.    (line    6)
+ * DECL_ARTIFICIAL <2>:                   Function Properties.
+                                                              (line   47)
  * DECL_ASSEMBLER_NAME:                   Function Basics.    (line    6)
! * DECL_ASSEMBLER_NAME <1>:               Function Basics.    (line   19)
! * DECL_ATTRIBUTES:                       Attributes.         (line   21)
  * DECL_BASE_CONSTRUCTOR_P:               Functions for C++.  (line   88)
  * DECL_COMPLETE_CONSTRUCTOR_P:           Functions for C++.  (line   84)
  * DECL_COMPLETE_DESTRUCTOR_P:            Functions for C++.  (line   98)
  * DECL_CONSTRUCTOR_P:                    Functions for C++.  (line   77)
+ * DECL_CONST_MEMFUNC_P:                  Functions for C++.  (line   71)
  * DECL_CONTEXT:                          Namespaces.         (line   31)
  * DECL_CONV_FN_P:                        Functions for C++.  (line  105)
  * DECL_COPY_CONSTRUCTOR_P:               Functions for C++.  (line   92)
  * DECL_DESTRUCTOR_P:                     Functions for C++.  (line   95)
! * DECL_EXTERNAL:                         Declarations.       (line    6)
  * DECL_EXTERNAL <1>:                     Function Properties.
                                                               (line   25)
! * DECL_EXTERN_C_FUNCTION_P:              Functions for C++.  (line   46)
  * DECL_FUNCTION_MEMBER_P:                Functions for C++.  (line   61)
+ * DECL_FUNCTION_SPECIFIC_OPTIMIZATION:   Function Basics.    (line    6)
  * DECL_FUNCTION_SPECIFIC_OPTIMIZATION <1>: Function Properties.
                                                               (line   61)
! * DECL_FUNCTION_SPECIFIC_TARGET:         Function Basics.    (line    6)
  * DECL_FUNCTION_SPECIFIC_TARGET <1>:     Function Properties.
                                                               (line   55)
  * DECL_GLOBAL_CTOR_P:                    Functions for C++.  (line  108)
  * DECL_GLOBAL_DTOR_P:                    Functions for C++.  (line  112)
  * DECL_INITIAL:                          Declarations.       (line    6)
+ * DECL_INITIAL <1>:                      Function Basics.    (line   51)
  * DECL_LINKONCE_P:                       Functions for C++.  (line   50)
  * DECL_LOCAL_FUNCTION_P:                 Functions for C++.  (line   38)
  * DECL_MAIN_P:                           Functions for C++.  (line   34)
  * DECL_NAME:                             Working with declarations.
                                                               (line    7)
+ * DECL_NAME <1>:                         Function Basics.    (line    6)
+ * DECL_NAME <2>:                         Function Basics.    (line    9)
+ * DECL_NAME <3>:                         Namespaces.         (line   20)
  * DECL_NAMESPACE_ALIAS:                  Namespaces.         (line   35)
  * DECL_NAMESPACE_STD_P:                  Namespaces.         (line   45)
  * DECL_NONCONVERTING_P:                  Functions for C++.  (line   80)
  * DECL_NONSTATIC_MEMBER_FUNCTION_P:      Functions for C++.  (line   68)
+ * DECL_NON_THUNK_FUNCTION_P:             Functions for C++.  (line  138)
  * DECL_OVERLOADED_OPERATOR_P:            Functions for C++.  (line  102)
  * DECL_PURE_P:                           Function Properties.
                                                               (line   40)
*************** Concept Index
*** 48437,48488 ****
  * DECL_VIRTUAL_P:                        Function Properties.
                                                               (line   44)
  * DECL_VOLATILE_MEMFUNC_P:               Functions for C++.  (line   74)
- * declaration:                           Declarations.       (line    6)
- * declarations, RTL:                     RTL Declarations.   (line    6)
- * DECLARE_LIBRARY_RENAMES:               Library Calls.      (line    9)
  * decrement_and_branch_until_zero instruction pattern: Standard Names.
!                                                              (line 1503)
  * default:                               GTY Options.        (line   88)
  * default_file_start:                    File Framework.     (line    8)
! * DEFAULT_GDB_EXTENSIONS:                DBX Options.        (line   18)
! * DEFAULT_PCC_STRUCT_RETURN:             Aggregate Return.   (line   35)
! * DEFAULT_SIGNED_CHAR:                   Type Layout.        (line  124)
! * define_address_constraint:             Define Constraints. (line  121)
  * define_asm_attributes:                 Tagging Insns.      (line   73)
  * define_attr:                           Defining Attributes.
                                                               (line    6)
  * define_automaton:                      Processor pipeline description.
                                                               (line   53)
  * define_bypass:                         Processor pipeline description.
!                                                              (line  197)
! * define_c_enum:                         Constant Definitions.
!                                                              (line   49)
  * define_code_attr:                      Code Iterators.     (line    6)
  * define_code_iterator:                  Code Iterators.     (line    6)
  * define_cond_exec:                      Conditional Execution.
                                                               (line   13)
  * define_constants:                      Constant Definitions.
                                                               (line    6)
! * define_constraint:                     Define Constraints. (line   48)
  * define_cpu_unit:                       Processor pipeline description.
                                                               (line   68)
  * define_delay:                          Delay Slots.        (line   25)
  * define_enum:                           Constant Definitions.
                                                               (line  118)
- * define_enum_attr <1>:                  Constant Definitions.
-                                                              (line  136)
  * define_enum_attr:                      Defining Attributes.
                                                               (line   83)
  * define_expand:                         Expander Definitions.
                                                               (line   11)
  * define_insn:                           Patterns.           (line    6)
  * define_insn example:                   Example.            (line    6)
  * define_insn_and_split:                 Insn Splitting.     (line  170)
  * define_insn_reservation:               Processor pipeline description.
!                                                              (line  106)
  * define_int_attr:                       Int Iterators.      (line    6)
  * define_int_iterator:                   Int Iterators.      (line    6)
! * define_memory_constraint:              Define Constraints. (line   88)
  * define_mode_attr:                      Substitutions.      (line    6)
  * define_mode_iterator:                  Defining Mode Iterators.
                                                               (line    6)
--- 47988,48036 ----
  * DECL_VIRTUAL_P:                        Function Properties.
                                                               (line   44)
  * DECL_VOLATILE_MEMFUNC_P:               Functions for C++.  (line   74)
  * decrement_and_branch_until_zero instruction pattern: Standard Names.
!                                                              (line 1495)
  * default:                               GTY Options.        (line   88)
  * default_file_start:                    File Framework.     (line    8)
! * DEFAULT_GDB_EXTENSIONS:                DBX Options.        (line   17)
! * DEFAULT_PCC_STRUCT_RETURN:             Aggregate Return.   (line   34)
! * DEFAULT_SIGNED_CHAR:                   Type Layout.        (line  123)
! * define_address_constraint:             Define Constraints. (line  113)
  * define_asm_attributes:                 Tagging Insns.      (line   73)
  * define_attr:                           Defining Attributes.
                                                               (line    6)
  * define_automaton:                      Processor pipeline description.
                                                               (line   53)
  * define_bypass:                         Processor pipeline description.
!                                                              (line  196)
  * define_code_attr:                      Code Iterators.     (line    6)
  * define_code_iterator:                  Code Iterators.     (line    6)
  * define_cond_exec:                      Conditional Execution.
                                                               (line   13)
  * define_constants:                      Constant Definitions.
                                                               (line    6)
! * define_constraint:                     Define Constraints. (line   45)
  * define_cpu_unit:                       Processor pipeline description.
                                                               (line   68)
+ * define_c_enum:                         Constant Definitions.
+                                                              (line   49)
  * define_delay:                          Delay Slots.        (line   25)
  * define_enum:                           Constant Definitions.
                                                               (line  118)
  * define_enum_attr:                      Defining Attributes.
                                                               (line   83)
+ * define_enum_attr <1>:                  Constant Definitions.
+                                                              (line  136)
  * define_expand:                         Expander Definitions.
                                                               (line   11)
  * define_insn:                           Patterns.           (line    6)
  * define_insn example:                   Example.            (line    6)
  * define_insn_and_split:                 Insn Splitting.     (line  170)
  * define_insn_reservation:               Processor pipeline description.
!                                                              (line  105)
  * define_int_attr:                       Int Iterators.      (line    6)
  * define_int_iterator:                   Int Iterators.      (line    6)
! * define_memory_constraint:              Define Constraints. (line   80)
  * define_mode_attr:                      Substitutions.      (line    6)
  * define_mode_iterator:                  Defining Mode Iterators.
                                                               (line    6)
*************** Concept Index
*** 48492,48513 ****
                                                               (line    6)
  * define_query_cpu_unit:                 Processor pipeline description.
                                                               (line   90)
! * define_register_constraint:            Define Constraints. (line   28)
  * define_reservation:                    Processor pipeline description.
!                                                              (line  186)
! * define_special_memory_constraint:      Define Constraints. (line  107)
  * define_special_predicate:              Defining Predicates.
                                                               (line    6)
  * define_split:                          Insn Splitting.     (line   32)
! * define_subst <1>:                      Subst Iterators.    (line    6)
! * define_subst <2>:                      Define Subst Output Template.
                                                               (line    6)
! * define_subst <3>:                      Define Subst Pattern Matching.
                                                               (line    6)
! * define_subst <4>:                      Define Subst Example.
                                                               (line    6)
! * define_subst:                          Define Subst.       (line    6)
  * define_subst_attr:                     Subst Iterators.    (line    6)
  * defining attributes and their values:  Defining Attributes.
                                                               (line    6)
  * defining constraints:                  Define Constraints. (line    6)
--- 48040,48063 ----
                                                               (line    6)
  * define_query_cpu_unit:                 Processor pipeline description.
                                                               (line   90)
! * define_register_constraint:            Define Constraints. (line   26)
  * define_reservation:                    Processor pipeline description.
!                                                              (line  185)
! * define_special_memory_constraint:      Define Constraints. (line   99)
  * define_special_predicate:              Defining Predicates.
                                                               (line    6)
  * define_split:                          Insn Splitting.     (line   32)
! * define_subst:                          Define Subst.       (line    6)
! * define_subst <1>:                      Define Subst Example.
                                                               (line    6)
! * define_subst <2>:                      Define Subst Pattern Matching.
                                                               (line    6)
! * define_subst <3>:                      Define Subst Output Template.
                                                               (line    6)
! * define_subst <4>:                      Define Subst.       (line   14)
! * define_subst <5>:                      Subst Iterators.    (line    6)
  * define_subst_attr:                     Subst Iterators.    (line    6)
+ * define_subst_attr <1>:                 Subst Iterators.    (line   26)
  * defining attributes and their values:  Defining Attributes.
                                                               (line    6)
  * defining constraints:                  Define Constraints. (line    6)
*************** Concept Index
*** 48520,48608 ****
  * defining RTL sequences for code generation: Expander Definitions.
                                                               (line    6)
  * delay slots, defining:                 Delay Slots.        (line    6)
! * deletable:                             GTY Options.        (line  131)
  * DELETE_IF_ORDINARY:                    Filesystem.         (line   79)
  * Dependent Patterns:                    Dependent Patterns. (line    6)
  * desc:                                  GTY Options.        (line   88)
  * destructors, output of:                Initialization.     (line    6)
  * deterministic finite state automaton:  Processor pipeline description.
                                                               (line    6)
  * DFmode:                                Machine Modes.      (line   76)
! * digits in constraint:                  Simple Constraints. (line  130)
  * DImode:                                Machine Modes.      (line   45)
  * DIR_SEPARATOR:                         Filesystem.         (line   18)
  * DIR_SEPARATOR_2:                       Filesystem.         (line   19)
- * directory options .md:                 Including Patterns. (line   44)
  * disabling certain registers:           Register Basics.    (line   73)
  * dispatch table:                        Dispatch Tables.    (line    8)
! * div:                                   Arithmetic.         (line  115)
! * div and attributes:                    Expressions.        (line   85)
! * division:                              Arithmetic.         (line  115)
! * divM3 instruction pattern:             Standard Names.     (line  305)
! * divmodM4 instruction pattern:          Standard Names.     (line  565)
! * DO_BODY:                               Statements for C++. (line    6)
! * DO_COND:                               Statements for C++. (line    6)
! * DO_STMT:                               Statements for C++. (line    6)
  * dollar sign:                           Multi-Alternative.  (line   57)
! * DOLLARS_IN_IDENTIFIERS:                Misc.               (line  454)
! * doloop_begin instruction pattern:      Standard Names.     (line 1525)
! * doloop_end instruction pattern:        Standard Names.     (line 1513)
  * DONE:                                  Expander Definitions.
                                                               (line   77)
  * DONT_USE_BUILTIN_SETJMP:               Exception Region Output.
!                                                              (line   80)
! * DOUBLE_TYPE_SIZE:                      Type Layout.        (line   53)
  * DQmode:                                Machine Modes.      (line  118)
  * driver:                                Driver.             (line    6)
! * DRIVER_SELF_SPECS:                     Driver.             (line    9)
  * dump examples:                         Dump examples.      (line    6)
  * dump setup:                            Dump setup.         (line    6)
  * dump types:                            Dump types.         (line    6)
  * dump verbosity:                        Dump output verbosity.
                                                               (line    6)
- * dump_basic_block:                      Dump types.         (line   30)
- * dump_generic_expr:                     Dump types.         (line   33)
- * dump_gimple_stmt:                      Dump types.         (line   36)
- * dump_printf:                           Dump types.         (line    6)
  * DUMPFILE_FORMAT:                       Filesystem.         (line   67)
! * DWARF2_ASM_LINE_DEBUG_INFO:            SDB and DWARF.      (line   50)
! * DWARF2_DEBUGGING_INFO:                 SDB and DWARF.      (line   13)
! * DWARF2_FRAME_INFO:                     SDB and DWARF.      (line   30)
! * DWARF2_FRAME_REG_OUT:                  Frame Registers.    (line  150)
  * DWARF2_UNWIND_INFO:                    Exception Region Output.
!                                                              (line   41)
! * DWARF_ALT_FRAME_RETURN_COLUMN:         Frame Layout.       (line  150)
  * DWARF_CIE_DATA_ALIGNMENT:              Exception Region Output.
!                                                              (line   92)
! * DWARF_FRAME_REGISTERS:                 Frame Registers.    (line  110)
! * DWARF_FRAME_REGNUM:                    Frame Registers.    (line  142)
  * DWARF_REG_TO_UNWIND_COLUMN:            Frame Registers.    (line  134)
! * DWARF_ZERO_REG:                        Frame Layout.       (line  161)
! * DYNAMIC_CHAIN_ADDRESS:                 Frame Layout.       (line   88)
! * E in constraint:                       Simple Constraints. (line   89)
  * earlyclobber operand:                  Modifiers.          (line   25)
  * edge:                                  Edges.              (line    6)
  * edge in the flow graph:                Edges.              (line    6)
  * edge iterators:                        Edges.              (line   15)
  * edge splitting:                        Maintaining the CFG.
!                                                              (line  107)
! * EDGE_ABNORMAL:                         Edges.              (line  128)
! * EDGE_ABNORMAL, EDGE_ABNORMAL_CALL:     Edges.              (line  172)
! * EDGE_ABNORMAL, EDGE_EH:                Edges.              (line   96)
! * EDGE_ABNORMAL, EDGE_SIBCALL:           Edges.              (line  122)
! * EDGE_FALLTHRU, force_nonfallthru:      Edges.              (line   86)
  * EDOM, implicit usage:                  Library Calls.      (line   59)
  * EH_FRAME_SECTION_NAME:                 Exception Region Output.
!                                                              (line   10)
  * EH_FRAME_THROUGH_COLLECT2:             Exception Region Output.
!                                                              (line   20)
! * eh_return instruction pattern:         Standard Names.     (line 1709)
! * EH_RETURN_DATA_REGNO:                  Exception Handling. (line    7)
! * EH_RETURN_HANDLER_RTX:                 Exception Handling. (line   39)
! * EH_RETURN_STACKADJ_RTX:                Exception Handling. (line   22)
  * EH_TABLES_CAN_BE_READ_ONLY:            Exception Region Output.
!                                                              (line   30)
! * EH_USES:                               Function Entry.     (line  158)
  * ei_edge:                               Edges.              (line   43)
  * ei_end_p:                              Edges.              (line   27)
  * ei_last:                               Edges.              (line   23)
--- 48070,48162 ----
  * defining RTL sequences for code generation: Expander Definitions.
                                                               (line    6)
  * delay slots, defining:                 Delay Slots.        (line    6)
! * deletable:                             GTY Options.        (line  132)
  * DELETE_IF_ORDINARY:                    Filesystem.         (line   79)
  * Dependent Patterns:                    Dependent Patterns. (line    6)
  * desc:                                  GTY Options.        (line   88)
  * destructors, output of:                Initialization.     (line    6)
  * deterministic finite state automaton:  Processor pipeline description.
                                                               (line    6)
+ * deterministic finite state automaton <1>: Processor pipeline description.
+                                                              (line  304)
  * DFmode:                                Machine Modes.      (line   76)
! * digits in constraint:                  Simple Constraints. (line  128)
  * DImode:                                Machine Modes.      (line   45)
+ * directory options .md:                 Including Patterns. (line   47)
  * DIR_SEPARATOR:                         Filesystem.         (line   18)
  * DIR_SEPARATOR_2:                       Filesystem.         (line   19)
  * disabling certain registers:           Register Basics.    (line   73)
  * dispatch table:                        Dispatch Tables.    (line    8)
! * div:                                   Arithmetic.         (line  116)
! * div and attributes:                    Expressions.        (line   83)
! * division:                              Arithmetic.         (line  116)
! * division <1>:                          Arithmetic.         (line  130)
! * division <2>:                          Arithmetic.         (line  136)
! * divM3 instruction pattern:             Standard Names.     (line  301)
! * divmodM4 instruction pattern:          Standard Names.     (line  559)
  * dollar sign:                           Multi-Alternative.  (line   57)
! * DOLLARS_IN_IDENTIFIERS:                Misc.               (line  452)
! * doloop_begin instruction pattern:      Standard Names.     (line 1517)
! * doloop_end instruction pattern:        Standard Names.     (line 1505)
  * DONE:                                  Expander Definitions.
                                                               (line   77)
  * DONT_USE_BUILTIN_SETJMP:               Exception Region Output.
!                                                              (line   78)
! * DOUBLE_TYPE_SIZE:                      Type Layout.        (line   52)
! * DO_BODY:                               Statements for C++. (line    6)
! * DO_COND:                               Statements for C++. (line    6)
! * DO_STMT:                               Statements for C++. (line    6)
  * DQmode:                                Machine Modes.      (line  118)
  * driver:                                Driver.             (line    6)
! * DRIVER_SELF_SPECS:                     Driver.             (line    8)
  * dump examples:                         Dump examples.      (line    6)
  * dump setup:                            Dump setup.         (line    6)
  * dump types:                            Dump types.         (line    6)
  * dump verbosity:                        Dump output verbosity.
                                                               (line    6)
  * DUMPFILE_FORMAT:                       Filesystem.         (line   67)
! * dump_basic_block:                      Dump types.         (line   29)
! * dump_generic_expr:                     Dump types.         (line   31)
! * dump_gimple_stmt:                      Dump types.         (line   33)
! * dump_printf:                           Dump types.         (line    6)
! * DWARF2_ASM_LINE_DEBUG_INFO:            SDB and DWARF.      (line   49)
! * DWARF2_DEBUGGING_INFO:                 SDB and DWARF.      (line   12)
! * DWARF2_FRAME_INFO:                     SDB and DWARF.      (line   29)
! * DWARF2_FRAME_REG_OUT:                  Frame Registers.    (line  151)
  * DWARF2_UNWIND_INFO:                    Exception Region Output.
!                                                              (line   39)
! * DWARF_ALT_FRAME_RETURN_COLUMN:         Frame Layout.       (line  148)
  * DWARF_CIE_DATA_ALIGNMENT:              Exception Region Output.
!                                                              (line   90)
! * DWARF_FRAME_REGISTERS:                 Frame Registers.    (line  109)
! * DWARF_FRAME_REGNUM:                    Frame Registers.    (line  143)
  * DWARF_REG_TO_UNWIND_COLUMN:            Frame Registers.    (line  134)
! * DWARF_ZERO_REG:                        Frame Layout.       (line  159)
! * DYNAMIC_CHAIN_ADDRESS:                 Frame Layout.       (line   86)
! * E in constraint:                       Simple Constraints. (line   87)
  * earlyclobber operand:                  Modifiers.          (line   25)
  * edge:                                  Edges.              (line    6)
  * edge in the flow graph:                Edges.              (line    6)
  * edge iterators:                        Edges.              (line   15)
  * edge splitting:                        Maintaining the CFG.
!                                                              (line  105)
! * EDGE_ABNORMAL:                         Edges.              (line  127)
! * EDGE_ABNORMAL, EDGE_ABNORMAL_CALL:     Edges.              (line  171)
! * EDGE_ABNORMAL, EDGE_EH:                Edges.              (line   95)
! * EDGE_ABNORMAL, EDGE_SIBCALL:           Edges.              (line  121)
! * EDGE_FALLTHRU, force_nonfallthru:      Edges.              (line   85)
  * EDOM, implicit usage:                  Library Calls.      (line   59)
  * EH_FRAME_SECTION_NAME:                 Exception Region Output.
!                                                              (line    9)
  * EH_FRAME_THROUGH_COLLECT2:             Exception Region Output.
!                                                              (line   19)
! * eh_return instruction pattern:         Standard Names.     (line 1698)
! * EH_RETURN_DATA_REGNO:                  Exception Handling. (line    6)
! * EH_RETURN_HANDLER_RTX:                 Exception Handling. (line   38)
! * EH_RETURN_STACKADJ_RTX:                Exception Handling. (line   21)
  * EH_TABLES_CAN_BE_READ_ONLY:            Exception Region Output.
!                                                              (line   29)
! * EH_USES:                               Function Entry.     (line  155)
  * ei_edge:                               Edges.              (line   43)
  * ei_end_p:                              Edges.              (line   27)
  * ei_last:                               Edges.              (line   23)
*************** Concept Index
*** 48611,48715 ****
  * ei_prev:                               Edges.              (line   39)
  * ei_safe_safe:                          Edges.              (line   47)
  * ei_start:                              Edges.              (line   19)
! * ELIMINABLE_REGS:                       Elimination.        (line   47)
  * ELSE_CLAUSE:                           Statements for C++. (line    6)
  * Embedded C:                            Fixed-point fractional library routines.
                                                               (line    6)
  * Empty Statements:                      Empty Statements.   (line    6)
  * EMPTY_CLASS_EXPR:                      Statements for C++. (line    6)
! * EMPTY_FIELD_BOUNDARY:                  Storage Layout.     (line  315)
  * Emulated TLS:                          Emulated TLS.       (line    6)
  * enabled:                               Disable Insn Alternatives.
                                                               (line    6)
! * ENDFILE_SPEC:                          Driver.             (line  156)
! * endianness:                            Portability.        (line   21)
  * ENTRY_BLOCK_PTR, EXIT_BLOCK_PTR:       Basic Blocks.       (line   10)
! * enum reg_class:                        Register Classes.   (line   72)
  * ENUMERAL_TYPE:                         Types.              (line    6)
  * enumerations:                          Constant Definitions.
                                                               (line   49)
  * epilogue:                              Function Entry.     (line    6)
! * epilogue instruction pattern:          Standard Names.     (line 1747)
! * EPILOGUE_USES:                         Function Entry.     (line  152)
  * eq:                                    Comparisons.        (line   52)
! * eq and attributes:                     Expressions.        (line   85)
! * eq_attr:                               Expressions.        (line  106)
  * EQ_EXPR:                               Unary and Binary Expressions.
                                                               (line    6)
- * equal:                                 Comparisons.        (line   52)
  * errno, implicit usage:                 Library Calls.      (line   71)
  * EXACT_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * examining SSA_NAMEs:                   SSA.                (line  182)
  * exception handling <1>:                Exception Handling. (line    6)
! * exception handling:                    Edges.              (line   96)
! * exception_receiver instruction pattern: Standard Names.    (line 1673)
  * exclamation point:                     Multi-Alternative.  (line   48)
  * exclusion_set:                         Processor pipeline description.
!                                                              (line  224)
! * exclusive-or, bitwise:                 Arithmetic.         (line  167)
  * EXIT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * EXIT_IGNORE_STACK:                     Function Entry.     (line  140)
! * exp10M2 instruction pattern:           Standard Names.     (line  732)
! * exp2M2 instruction pattern:            Standard Names.     (line  739)
  * expander definitions:                  Expander Definitions.
                                                               (line    6)
! * expm1M2 instruction pattern:           Standard Names.     (line  722)
! * expM2 instruction pattern:             Standard Names.     (line  715)
  * EXPR_FILENAME:                         Working with declarations.
                                                               (line   14)
  * EXPR_LINENO:                           Working with declarations.
                                                               (line   20)
! * expr_list:                             Insns.              (line  548)
  * EXPR_STMT:                             Statements for C++. (line    6)
  * EXPR_STMT_EXPR:                        Statements for C++. (line    6)
! * expression:                            Expression trees.   (line    6)
! * expression codes:                      RTL Objects.        (line   47)
! * extendMN2 instruction pattern:         Standard Names.     (line 1130)
! * extensible constraints:                Simple Constraints. (line  173)
! * EXTRA_SPECS:                           Driver.             (line  183)
! * extv instruction pattern:              Standard Names.     (line 1221)
! * extvM instruction pattern:             Standard Names.     (line 1166)
! * extvmisalignM instruction pattern:     Standard Names.     (line 1176)
! * extzv instruction pattern:             Standard Names.     (line 1239)
! * extzvM instruction pattern:            Standard Names.     (line 1190)
! * extzvmisalignM instruction pattern:    Standard Names.     (line 1193)
! * F in constraint:                       Simple Constraints. (line   94)
  * FAIL:                                  Expander Definitions.
                                                               (line   83)
! * fall-thru:                             Edges.              (line   69)
  * FATAL_EXIT_CODE:                       Host Misc.          (line    6)
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                               (line    6)
  * features, optional, in system conventions: Run-time Target.
                                                               (line   59)
  * ffs:                                   Arithmetic.         (line  210)
! * ffsM2 instruction pattern:             Standard Names.     (line  878)
  * FIELD_DECL:                            Declarations.       (line    6)
- * file_end_indicate_exec_stack:          File Framework.     (line   41)
  * files and passes of the compiler:      Passes.             (line    6)
  * files, generated:                      Files.              (line    6)
  * final_absence_set:                     Processor pipeline description.
!                                                              (line  224)
! * FINAL_PRESCAN_INSN:                    Instruction Output. (line   61)
  * final_presence_set:                    Processor pipeline description.
!                                                              (line  224)
! * final_sequence:                        Instruction Output. (line  145)
! * FIND_BASE_TERM:                        Addressing Modes.   (line  119)
! * FINI_ARRAY_SECTION_ASM_OP:             Sections.           (line  114)
! * FINI_SECTION_ASM_OP:                   Sections.           (line   99)
  * finite state automaton minimization:   Processor pipeline description.
!                                                              (line  305)
! * FIRST_PARM_OFFSET:                     Frame Layout.       (line   63)
  * FIRST_PARM_OFFSET and virtual registers: Regs and Memory.  (line   65)
! * FIRST_PSEUDO_REGISTER:                 Register Basics.    (line    9)
! * FIRST_STACK_REG:                       Stack Registers.    (line   27)
  * FIRST_VIRTUAL_REGISTER:                Regs and Memory.    (line   51)
  * fix:                                   Conversions.        (line   66)
- * FIX_TRUNC_EXPR:                        Unary and Binary Expressions.
-                                                              (line    6)
- * fix_truncMN2 instruction pattern:      Standard Names.     (line 1117)
  * fixed register:                        Register Basics.    (line   15)
  * fixed-point fractional library:        Fixed-point fractional library routines.
                                                               (line    6)
--- 48165,48266 ----
  * ei_prev:                               Edges.              (line   39)
  * ei_safe_safe:                          Edges.              (line   47)
  * ei_start:                              Edges.              (line   19)
! * ELIMINABLE_REGS:                       Elimination.        (line   46)
  * ELSE_CLAUSE:                           Statements for C++. (line    6)
  * Embedded C:                            Fixed-point fractional library routines.
                                                               (line    6)
  * Empty Statements:                      Empty Statements.   (line    6)
  * EMPTY_CLASS_EXPR:                      Statements for C++. (line    6)
! * EMPTY_FIELD_BOUNDARY:                  Storage Layout.     (line  311)
  * Emulated TLS:                          Emulated TLS.       (line    6)
  * enabled:                               Disable Insn Alternatives.
                                                               (line    6)
! * ENDFILE_SPEC:                          Driver.             (line  155)
! * endianness:                            Portability.        (line   20)
  * ENTRY_BLOCK_PTR, EXIT_BLOCK_PTR:       Basic Blocks.       (line   10)
! * enum reg_class:                        Register Classes.   (line   70)
  * ENUMERAL_TYPE:                         Types.              (line    6)
  * enumerations:                          Constant Definitions.
                                                               (line   49)
  * epilogue:                              Function Entry.     (line    6)
! * epilogue instruction pattern:          Standard Names.     (line 1736)
! * EPILOGUE_USES:                         Function Entry.     (line  149)
  * eq:                                    Comparisons.        (line   52)
! * eq and attributes:                     Expressions.        (line   83)
! * equal:                                 Comparisons.        (line   52)
! * eq_attr:                               Expressions.        (line  104)
  * EQ_EXPR:                               Unary and Binary Expressions.
                                                               (line    6)
  * errno, implicit usage:                 Library Calls.      (line   71)
  * EXACT_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * examining SSA_NAMEs:                   SSA.                (line  182)
+ * exception handling:                    Edges.              (line   95)
  * exception handling <1>:                Exception Handling. (line    6)
! * exception_receiver instruction pattern: Standard Names.    (line 1663)
  * exclamation point:                     Multi-Alternative.  (line   48)
  * exclusion_set:                         Processor pipeline description.
!                                                              (line  223)
! * exclusive-or, bitwise:                 Arithmetic.         (line  168)
  * EXIT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * EXIT_IGNORE_STACK:                     Function Entry.     (line  137)
! * exp10M2 instruction pattern:           Standard Names.     (line  726)
! * exp2M2 instruction pattern:            Standard Names.     (line  733)
  * expander definitions:                  Expander Definitions.
                                                               (line    6)
! * expm1M2 instruction pattern:           Standard Names.     (line  716)
! * expM2 instruction pattern:             Standard Names.     (line  709)
! * expression:                            Expression trees.   (line    6)
! * expression codes:                      RTL Objects.        (line   47)
  * EXPR_FILENAME:                         Working with declarations.
                                                               (line   14)
  * EXPR_LINENO:                           Working with declarations.
                                                               (line   20)
! * expr_list:                             Insns.              (line  540)
  * EXPR_STMT:                             Statements for C++. (line    6)
  * EXPR_STMT_EXPR:                        Statements for C++. (line    6)
! * extendMN2 instruction pattern:         Standard Names.     (line 1124)
! * extensible constraints:                Simple Constraints. (line  171)
! * EXTRA_SPECS:                           Driver.             (line  182)
! * extv instruction pattern:              Standard Names.     (line 1215)
! * extvM instruction pattern:             Standard Names.     (line 1160)
! * extvmisalignM instruction pattern:     Standard Names.     (line 1170)
! * extzv instruction pattern:             Standard Names.     (line 1233)
! * extzvM instruction pattern:            Standard Names.     (line 1184)
! * extzvmisalignM instruction pattern:    Standard Names.     (line 1187)
! * F in constraint:                       Simple Constraints. (line   92)
  * FAIL:                                  Expander Definitions.
                                                               (line   83)
! * fall-thru:                             Edges.              (line   68)
  * FATAL_EXIT_CODE:                       Host Misc.          (line    6)
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                               (line    6)
  * features, optional, in system conventions: Run-time Target.
                                                               (line   59)
  * ffs:                                   Arithmetic.         (line  210)
! * ffsM2 instruction pattern:             Standard Names.     (line  872)
  * FIELD_DECL:                            Declarations.       (line    6)
  * files and passes of the compiler:      Passes.             (line    6)
  * files, generated:                      Files.              (line    6)
+ * file_end_indicate_exec_stack:          File Framework.     (line   39)
  * final_absence_set:                     Processor pipeline description.
!                                                              (line  223)
! * FINAL_PRESCAN_INSN:                    Instruction Output. (line   60)
  * final_presence_set:                    Processor pipeline description.
!                                                              (line  223)
! * final_sequence:                        Instruction Output. (line  144)
! * FIND_BASE_TERM:                        Addressing Modes.   (line  117)
  * finite state automaton minimization:   Processor pipeline description.
!                                                              (line  304)
! * FINI_ARRAY_SECTION_ASM_OP:             Sections.           (line  113)
! * FINI_SECTION_ASM_OP:                   Sections.           (line   98)
! * FIRST_PARM_OFFSET:                     Frame Layout.       (line   61)
  * FIRST_PARM_OFFSET and virtual registers: Regs and Memory.  (line   65)
! * FIRST_PSEUDO_REGISTER:                 Register Basics.    (line    8)
! * FIRST_STACK_REG:                       Stack Registers.    (line   26)
  * FIRST_VIRTUAL_REGISTER:                Regs and Memory.    (line   51)
  * fix:                                   Conversions.        (line   66)
  * fixed register:                        Register Basics.    (line   15)
  * fixed-point fractional library:        Fixed-point fractional library routines.
                                                               (line    6)
*************** Concept Index
*** 48718,48780 ****
  * FIXED_CST:                             Constant expressions.
                                                               (line    6)
  * FIXED_POINT_TYPE:                      Types.              (line    6)
! * FIXED_REGISTERS:                       Register Basics.    (line   15)
  * fixed_regs:                            Register Basics.    (line   59)
! * fixMN2 instruction pattern:            Standard Names.     (line 1097)
! * fixuns_truncMN2 instruction pattern:   Standard Names.     (line 1121)
! * fixunsMN2 instruction pattern:         Standard Names.     (line 1106)
  * flags in RTL expression:               Flags.              (line    6)
  * float:                                 Conversions.        (line   58)
  * FLOAT_EXPR:                            Unary and Binary Expressions.
                                                               (line    6)
  * float_extend:                          Conversions.        (line   33)
! * FLOAT_LIB_COMPARE_RETURNS_BOOL:        Library Calls.      (line   33)
! * FLOAT_STORE_FLAG_VALUE:                Misc.               (line  287)
  * float_truncate:                        Conversions.        (line   53)
! * FLOAT_TYPE_SIZE:                       Type Layout.        (line   49)
! * FLOAT_WORDS_BIG_ENDIAN:                Storage Layout.     (line   42)
  * FLOAT_WORDS_BIG_ENDIAN, (lack of) effect on subreg: Regs and Memory.
!                                                              (line  226)
! * floating point and cross compilation:  Floating Point.     (line    6)
! * floatMN2 instruction pattern:          Standard Names.     (line 1089)
! * floatunsMN2 instruction pattern:       Standard Names.     (line 1093)
  * FLOOR_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * FLOOR_MOD_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
- * floorM2 instruction pattern:           Standard Names.     (line  806)
  * flow-insensitive alias analysis:       Alias analysis.     (line    6)
  * flow-sensitive alias analysis:         Alias analysis.     (line    6)
! * fma:                                   Arithmetic.         (line  111)
! * fmaM4 instruction pattern:             Standard Names.     (line  342)
! * fmaxM3 instruction pattern:            Standard Names.     (line  373)
! * fminM3 instruction pattern:            Standard Names.     (line  373)
! * fmodM3 instruction pattern:            Standard Names.     (line  638)
! * fmsM4 instruction pattern:             Standard Names.     (line  349)
! * fnmaM4 instruction pattern:            Standard Names.     (line  355)
! * fnmsM4 instruction pattern:            Standard Names.     (line  361)
  * FOR_BODY:                              Statements for C++. (line    6)
  * FOR_COND:                              Statements for C++. (line    6)
  * FOR_EXPR:                              Statements for C++. (line    6)
  * FOR_INIT_STMT:                         Statements for C++. (line    6)
  * FOR_STMT:                              Statements for C++. (line    6)
  * for_user:                              GTY Options.        (line   82)
- * FORCE_CODE_SECTION_ALIGN:              Sections.           (line  145)
- * force_reg:                             Standard Names.     (line   36)
- * fract_convert:                         Conversions.        (line   82)
- * FRACT_TYPE_SIZE:                       Type Layout.        (line   68)
  * fractional types:                      Fixed-point fractional library routines.
                                                               (line    6)
! * fractMN2 instruction pattern:          Standard Names.     (line 1139)
! * fractunsMN2 instruction pattern:       Standard Names.     (line 1154)
  * frame layout:                          Frame Layout.       (line    6)
! * FRAME_ADDR_RTX:                        Frame Layout.       (line  112)
! * FRAME_GROWS_DOWNWARD:                  Frame Layout.       (line   27)
  * FRAME_GROWS_DOWNWARD and virtual registers: Regs and Memory.
                                                               (line   69)
! * FRAME_POINTER_CFA_OFFSET:              Frame Layout.       (line  210)
  * frame_pointer_needed:                  Function Entry.     (line   34)
! * FRAME_POINTER_REGNUM:                  Frame Registers.    (line   14)
  * FRAME_POINTER_REGNUM and virtual registers: Regs and Memory.
                                                               (line   74)
  * frame_pointer_rtx:                     Frame Registers.    (line  104)
--- 48269,48334 ----
  * FIXED_CST:                             Constant expressions.
                                                               (line    6)
  * FIXED_POINT_TYPE:                      Types.              (line    6)
! * FIXED_REGISTERS:                       Register Basics.    (line   14)
  * fixed_regs:                            Register Basics.    (line   59)
! * fixMN2 instruction pattern:            Standard Names.     (line 1091)
! * fixunsMN2 instruction pattern:         Standard Names.     (line 1100)
! * fixuns_truncMN2 instruction pattern:   Standard Names.     (line 1115)
! * fix_truncMN2 instruction pattern:      Standard Names.     (line 1111)
! * FIX_TRUNC_EXPR:                        Unary and Binary Expressions.
!                                                              (line    6)
  * flags in RTL expression:               Flags.              (line    6)
  * float:                                 Conversions.        (line   58)
+ * floating point and cross compilation:  Floating Point.     (line    6)
+ * floatMN2 instruction pattern:          Standard Names.     (line 1083)
+ * floatunsMN2 instruction pattern:       Standard Names.     (line 1087)
  * FLOAT_EXPR:                            Unary and Binary Expressions.
                                                               (line    6)
  * float_extend:                          Conversions.        (line   33)
! * FLOAT_LIB_COMPARE_RETURNS_BOOL:        Library Calls.      (line   32)
! * FLOAT_STORE_FLAG_VALUE:                Misc.               (line  286)
  * float_truncate:                        Conversions.        (line   53)
! * FLOAT_TYPE_SIZE:                       Type Layout.        (line   48)
! * FLOAT_WORDS_BIG_ENDIAN:                Storage Layout.     (line   41)
  * FLOAT_WORDS_BIG_ENDIAN, (lack of) effect on subreg: Regs and Memory.
!                                                              (line  224)
! * floorM2 instruction pattern:           Standard Names.     (line  800)
  * FLOOR_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * FLOOR_MOD_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * flow-insensitive alias analysis:       Alias analysis.     (line    6)
  * flow-sensitive alias analysis:         Alias analysis.     (line    6)
! * fma:                                   Arithmetic.         (line  112)
! * fmaM4 instruction pattern:             Standard Names.     (line  338)
! * fmaxM3 instruction pattern:            Standard Names.     (line  369)
! * fminM3 instruction pattern:            Standard Names.     (line  369)
! * fmodM3 instruction pattern:            Standard Names.     (line  632)
! * fmsM4 instruction pattern:             Standard Names.     (line  345)
! * fnmaM4 instruction pattern:            Standard Names.     (line  351)
! * fnmsM4 instruction pattern:            Standard Names.     (line  357)
! * FORCE_CODE_SECTION_ALIGN:              Sections.           (line  144)
! * force_reg:                             Standard Names.     (line   36)
  * FOR_BODY:                              Statements for C++. (line    6)
  * FOR_COND:                              Statements for C++. (line    6)
  * FOR_EXPR:                              Statements for C++. (line    6)
  * FOR_INIT_STMT:                         Statements for C++. (line    6)
  * FOR_STMT:                              Statements for C++. (line    6)
  * for_user:                              GTY Options.        (line   82)
  * fractional types:                      Fixed-point fractional library routines.
                                                               (line    6)
! * fractMN2 instruction pattern:          Standard Names.     (line 1133)
! * fractunsMN2 instruction pattern:       Standard Names.     (line 1148)
! * fract_convert:                         Conversions.        (line   82)
! * FRACT_TYPE_SIZE:                       Type Layout.        (line   67)
  * frame layout:                          Frame Layout.       (line    6)
! * FRAME_ADDR_RTX:                        Frame Layout.       (line  110)
! * FRAME_GROWS_DOWNWARD:                  Frame Layout.       (line   26)
  * FRAME_GROWS_DOWNWARD and virtual registers: Regs and Memory.
                                                               (line   69)
! * FRAME_POINTER_CFA_OFFSET:              Frame Layout.       (line  208)
  * frame_pointer_needed:                  Function Entry.     (line   34)
! * FRAME_POINTER_REGNUM:                  Frame Registers.    (line   13)
  * FRAME_POINTER_REGNUM and virtual registers: Regs and Memory.
                                                               (line   74)
  * frame_pointer_rtx:                     Frame Registers.    (line  104)
*************** Concept Index
*** 48786,48816 ****
  * frame_related, in symbol_ref:          Flags.              (line  165)
  * frequency, count, BB_FREQ_BASE:        Profile information.
                                                               (line   30)
! * ftruncM2 instruction pattern:          Standard Names.     (line 1112)
! * function <1>:                          Functions for C++.  (line    6)
  * function:                              Functions.          (line    6)
  * function call conventions:             Interface.          (line    6)
  * function entry and exit:               Function Entry.     (line    6)
  * function entry point, alternate function entry point: Edges.
!                                                              (line  181)
  * function properties:                   Function Properties.
                                                               (line    6)
  * function-call insns:                   Calls.              (line    6)
! * FUNCTION_ARG_OFFSET:                   Register Arguments. (line  212)
! * FUNCTION_ARG_PADDING:                  Register Arguments. (line  219)
! * FUNCTION_ARG_REGNO_P:                  Register Arguments. (line  267)
! * FUNCTION_BOUNDARY:                     Storage Layout.     (line  161)
! * FUNCTION_DECL <1>:                     Functions for C++.  (line    6)
  * FUNCTION_DECL:                         Functions.          (line    6)
! * FUNCTION_MODE:                         Misc.               (line  342)
! * FUNCTION_PROFILER:                     Profiling.          (line    9)
  * FUNCTION_TYPE:                         Types.              (line    6)
  * FUNCTION_VALUE:                        Scalar Return.      (line   52)
  * FUNCTION_VALUE_REGNO_P:                Scalar Return.      (line   78)
- * functions, leaf:                       Leaf Functions.     (line    6)
  * fundamental type:                      Types.              (line    6)
! * g in constraint:                       Simple Constraints. (line  120)
! * G in constraint:                       Simple Constraints. (line   98)
  * garbage collector, invocation:         Invoking the garbage collector.
                                                               (line    6)
  * garbage collector, troubleshooting:    Troubleshooting.    (line    6)
--- 48340,48370 ----
  * frame_related, in symbol_ref:          Flags.              (line  165)
  * frequency, count, BB_FREQ_BASE:        Profile information.
                                                               (line   30)
! * ftruncM2 instruction pattern:          Standard Names.     (line 1106)
  * function:                              Functions.          (line    6)
+ * function <1>:                          Functions for C++.  (line    6)
  * function call conventions:             Interface.          (line    6)
  * function entry and exit:               Function Entry.     (line    6)
  * function entry point, alternate function entry point: Edges.
!                                                              (line  180)
  * function properties:                   Function Properties.
                                                               (line    6)
  * function-call insns:                   Calls.              (line    6)
! * functions, leaf:                       Leaf Functions.     (line    6)
! * FUNCTION_ARG_OFFSET:                   Register Arguments. (line  210)
! * FUNCTION_ARG_PADDING:                  Register Arguments. (line  217)
! * FUNCTION_ARG_REGNO_P:                  Register Arguments. (line  265)
! * FUNCTION_BOUNDARY:                     Storage Layout.     (line  159)
  * FUNCTION_DECL:                         Functions.          (line    6)
! * FUNCTION_DECL <1>:                     Functions for C++.  (line    6)
! * FUNCTION_MODE:                         Misc.               (line  341)
! * FUNCTION_PROFILER:                     Profiling.          (line    8)
  * FUNCTION_TYPE:                         Types.              (line    6)
  * FUNCTION_VALUE:                        Scalar Return.      (line   52)
  * FUNCTION_VALUE_REGNO_P:                Scalar Return.      (line   78)
  * fundamental type:                      Types.              (line    6)
! * G in constraint:                       Simple Constraints. (line   96)
! * g in constraint:                       Simple Constraints. (line  118)
  * garbage collector, invocation:         Invoking the garbage collector.
                                                               (line    6)
  * garbage collector, troubleshooting:    Troubleshooting.    (line    6)
*************** Concept Index
*** 48819,48875 ****
  * gcov_type:                             Profile information.
                                                               (line   41)
  * ge:                                    Comparisons.        (line   72)
! * ge and attributes:                     Expressions.        (line   85)
! * GE_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
! * GEN_ERRNO_RTX:                         Library Calls.      (line   72)
  * gencodes:                              RTL passes.         (line   18)
  * general_operand:                       Machine-Independent Predicates.
!                                                              (line  105)
! * GENERAL_REGS:                          Register Classes.   (line   23)
  * generated files:                       Files.              (line    6)
  * generating assembler output:           Output Statement.   (line    6)
  * generating insns:                      RTL Template.       (line    6)
- * GENERIC <1>:                           GENERIC.            (line    6)
  * GENERIC:                               Parsing pass.       (line    6)
  * generic predicates:                    Machine-Independent Predicates.
                                                               (line    6)
  * genflags:                              RTL passes.         (line   18)
! * get_attr:                              Expressions.        (line  101)
  * get_attr_length:                       Insn Lengths.       (line   52)
! * GET_CLASS_NARROWEST_MODE:              Machine Modes.      (line  345)
  * GET_CODE:                              RTL Objects.        (line   47)
  * get_frame_size:                        Elimination.        (line   34)
  * get_insns:                             Insns.              (line   34)
  * get_last_insn:                         Insns.              (line   34)
! * GET_MODE:                              Machine Modes.      (line  292)
! * GET_MODE_ALIGNMENT:                    Machine Modes.      (line  332)
! * GET_MODE_BITSIZE:                      Machine Modes.      (line  316)
! * GET_MODE_CLASS:                        Machine Modes.      (line  306)
! * GET_MODE_FBIT:                         Machine Modes.      (line  323)
! * GET_MODE_IBIT:                         Machine Modes.      (line  319)
! * GET_MODE_MASK:                         Machine Modes.      (line  327)
! * GET_MODE_NAME:                         Machine Modes.      (line  303)
! * GET_MODE_NUNITS:                       Machine Modes.      (line  341)
! * GET_MODE_SIZE:                         Machine Modes.      (line  313)
! * GET_MODE_UNIT_SIZE:                    Machine Modes.      (line  335)
! * GET_MODE_WIDER_MODE:                   Machine Modes.      (line  309)
  * GET_RTX_CLASS:                         RTL Classes.        (line    6)
  * GET_RTX_FORMAT:                        RTL Classes.        (line  131)
  * GET_RTX_LENGTH:                        RTL Classes.        (line  128)
  * get_thread_pointerMODE instruction pattern: Standard Names.
!                                                              (line 2084)
  * geu:                                   Comparisons.        (line   72)
! * geu and attributes:                    Expressions.        (line   85)
  * GGC:                                   Type Information.   (line    6)
  * ggc_collect:                           Invoking the garbage collector.
                                                               (line    6)
  * gimple:                                Tuple representation.
                                                               (line   14)
- * GIMPLE <1>:                            GIMPLE.             (line    6)
- * GIMPLE <2>:                            Gimplification pass.
-                                                              (line    6)
- * GIMPLE:                                Parsing pass.       (line   14)
  * GIMPLE API:                            GIMPLE API.         (line    6)
  * GIMPLE class hierarchy:                Class hierarchy of GIMPLE statements.
                                                               (line    6)
--- 48373,48429 ----
  * gcov_type:                             Profile information.
                                                               (line   41)
  * ge:                                    Comparisons.        (line   72)
! * ge and attributes:                     Expressions.        (line   83)
  * gencodes:                              RTL passes.         (line   18)
  * general_operand:                       Machine-Independent Predicates.
!                                                              (line  104)
! * GENERAL_REGS:                          Register Classes.   (line   22)
  * generated files:                       Files.              (line    6)
  * generating assembler output:           Output Statement.   (line    6)
  * generating insns:                      RTL Template.       (line    6)
  * GENERIC:                               Parsing pass.       (line    6)
+ * GENERIC <1>:                           GENERIC.            (line    6)
  * generic predicates:                    Machine-Independent Predicates.
                                                               (line    6)
  * genflags:                              RTL passes.         (line   18)
! * GEN_ERRNO_RTX:                         Library Calls.      (line   71)
! * get_attr:                              Expressions.        (line   99)
  * get_attr_length:                       Insn Lengths.       (line   52)
! * GET_CLASS_NARROWEST_MODE:              Machine Modes.      (line  344)
  * GET_CODE:                              RTL Objects.        (line   47)
  * get_frame_size:                        Elimination.        (line   34)
  * get_insns:                             Insns.              (line   34)
  * get_last_insn:                         Insns.              (line   34)
! * GET_MODE:                              Machine Modes.      (line  291)
! * GET_MODE_ALIGNMENT:                    Machine Modes.      (line  331)
! * GET_MODE_BITSIZE:                      Machine Modes.      (line  315)
! * GET_MODE_CLASS:                        Machine Modes.      (line  305)
! * GET_MODE_FBIT:                         Machine Modes.      (line  322)
! * GET_MODE_IBIT:                         Machine Modes.      (line  318)
! * GET_MODE_MASK:                         Machine Modes.      (line  326)
! * GET_MODE_NAME:                         Machine Modes.      (line  302)
! * GET_MODE_NUNITS:                       Machine Modes.      (line  340)
! * GET_MODE_SIZE:                         Machine Modes.      (line  312)
! * GET_MODE_UNIT_SIZE:                    Machine Modes.      (line  334)
! * GET_MODE_WIDER_MODE:                   Machine Modes.      (line  308)
  * GET_RTX_CLASS:                         RTL Classes.        (line    6)
  * GET_RTX_FORMAT:                        RTL Classes.        (line  131)
  * GET_RTX_LENGTH:                        RTL Classes.        (line  128)
  * get_thread_pointerMODE instruction pattern: Standard Names.
!                                                              (line 2073)
  * geu:                                   Comparisons.        (line   72)
! * geu and attributes:                    Expressions.        (line   83)
! * GE_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
  * GGC:                                   Type Information.   (line    6)
  * ggc_collect:                           Invoking the garbage collector.
                                                               (line    6)
+ * GIMPLE:                                Parsing pass.       (line   13)
+ * GIMPLE <1>:                            Gimplification pass.
+                                                              (line    6)
+ * GIMPLE <2>:                            GIMPLE.             (line    6)
  * gimple:                                Tuple representation.
                                                               (line   14)
  * GIMPLE API:                            GIMPLE API.         (line    6)
  * GIMPLE class hierarchy:                Class hierarchy of GIMPLE statements.
                                                               (line    6)
*************** Concept Index
*** 48878,49384 ****
  * GIMPLE instruction set:                GIMPLE instruction set.
                                                               (line    6)
  * GIMPLE sequences:                      GIMPLE sequences.   (line    6)
- * GIMPLE statement iterators <1>:        Maintaining the CFG.
-                                                              (line   34)
  * GIMPLE statement iterators:            Basic Blocks.       (line   78)
  * gimple_addresses_taken:                Manipulating GIMPLE statements.
!                                                              (line   90)
  * GIMPLE_ASM:                            GIMPLE_ASM.         (line    6)
! * gimple_asm_clobber_op:                 GIMPLE_ASM.         (line   41)
! * gimple_asm_input_op:                   GIMPLE_ASM.         (line   25)
! * gimple_asm_nclobbers:                  GIMPLE_ASM.         (line   21)
! * gimple_asm_ninputs:                    GIMPLE_ASM.         (line   15)
! * gimple_asm_noutputs:                   GIMPLE_ASM.         (line   18)
! * gimple_asm_output_op:                  GIMPLE_ASM.         (line   33)
! * gimple_asm_set_clobber_op:             GIMPLE_ASM.         (line   45)
! * gimple_asm_set_input_op:               GIMPLE_ASM.         (line   29)
! * gimple_asm_set_output_op:              GIMPLE_ASM.         (line   37)
! * gimple_asm_set_volatile:               GIMPLE_ASM.         (line   56)
! * gimple_asm_string:                     GIMPLE_ASM.         (line   48)
! * gimple_asm_volatile_p:                 GIMPLE_ASM.         (line   52)
  * GIMPLE_ASSIGN:                         GIMPLE_ASSIGN.      (line    6)
! * gimple_assign_cast_p <1>:              GIMPLE_ASSIGN.      (line  105)
! * gimple_assign_cast_p:                  Logical Operators.  (line  160)
! * gimple_assign_lhs:                     GIMPLE_ASSIGN.      (line   63)
! * gimple_assign_lhs_ptr:                 GIMPLE_ASSIGN.      (line   66)
! * gimple_assign_rhs1:                    GIMPLE_ASSIGN.      (line   69)
! * gimple_assign_rhs1_ptr:                GIMPLE_ASSIGN.      (line   72)
! * gimple_assign_rhs2:                    GIMPLE_ASSIGN.      (line   76)
! * gimple_assign_rhs2_ptr:                GIMPLE_ASSIGN.      (line   79)
! * gimple_assign_rhs3:                    GIMPLE_ASSIGN.      (line   83)
! * gimple_assign_rhs3_ptr:                GIMPLE_ASSIGN.      (line   86)
! * gimple_assign_rhs_class:               GIMPLE_ASSIGN.      (line   58)
! * gimple_assign_rhs_code:                GIMPLE_ASSIGN.      (line   53)
! * gimple_assign_set_lhs:                 GIMPLE_ASSIGN.      (line   90)
! * gimple_assign_set_rhs1:                GIMPLE_ASSIGN.      (line   93)
! * gimple_assign_set_rhs2:                GIMPLE_ASSIGN.      (line   97)
! * gimple_assign_set_rhs3:                GIMPLE_ASSIGN.      (line  101)
  * gimple_bb:                             Manipulating GIMPLE statements.
!                                                              (line   18)
  * GIMPLE_BIND:                           GIMPLE_BIND.        (line    6)
! * gimple_bind_add_seq:                   GIMPLE_BIND.        (line   36)
! * gimple_bind_add_stmt:                  GIMPLE_BIND.        (line   32)
! * gimple_bind_append_vars:               GIMPLE_BIND.        (line   19)
! * gimple_bind_block:                     GIMPLE_BIND.        (line   40)
! * gimple_bind_body:                      GIMPLE_BIND.        (line   23)
! * gimple_bind_set_block:                 GIMPLE_BIND.        (line   45)
! * gimple_bind_set_body:                  GIMPLE_BIND.        (line   28)
! * gimple_bind_set_vars:                  GIMPLE_BIND.        (line   15)
! * gimple_bind_vars:                      GIMPLE_BIND.        (line   12)
  * gimple_block:                          Manipulating GIMPLE statements.
!                                                              (line   21)
! * gimple_build:                          GIMPLE API.         (line   36)
! * gimple_build_nop:                      GIMPLE_NOP.         (line    7)
! * gimple_build_omp_master:               GIMPLE_OMP_MASTER.  (line    7)
! * gimple_build_omp_ordered:              GIMPLE_OMP_ORDERED. (line    7)
! * gimple_build_omp_return:               GIMPLE_OMP_RETURN.  (line    7)
! * gimple_build_omp_section:              GIMPLE_OMP_SECTION. (line    7)
  * gimple_build_omp_sections_switch:      GIMPLE_OMP_SECTIONS.
!                                                              (line   14)
  * gimple_build_wce:                      GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line    7)
  * GIMPLE_CALL:                           GIMPLE_CALL.        (line    6)
! * gimple_call_arg:                       GIMPLE_CALL.        (line   66)
! * gimple_call_arg_ptr:                   GIMPLE_CALL.        (line   71)
! * gimple_call_chain:                     GIMPLE_CALL.        (line   57)
! * gimple_call_copy_skip_args:            GIMPLE_CALL.        (line   92)
! * gimple_call_fn:                        GIMPLE_CALL.        (line   38)
! * gimple_call_fndecl:                    GIMPLE_CALL.        (line   46)
! * gimple_call_lhs:                       GIMPLE_CALL.        (line   29)
! * gimple_call_lhs_ptr:                   GIMPLE_CALL.        (line   32)
! * gimple_call_noreturn_p:                GIMPLE_CALL.        (line   88)
! * gimple_call_num_args:                  GIMPLE_CALL.        (line   63)
! * gimple_call_return_type:               GIMPLE_CALL.        (line   54)
! * gimple_call_set_arg:                   GIMPLE_CALL.        (line   76)
! * gimple_call_set_chain:                 GIMPLE_CALL.        (line   60)
! * gimple_call_set_fn:                    GIMPLE_CALL.        (line   42)
! * gimple_call_set_fndecl:                GIMPLE_CALL.        (line   51)
! * gimple_call_set_lhs:                   GIMPLE_CALL.        (line   35)
! * gimple_call_set_tail:                  GIMPLE_CALL.        (line   80)
! * gimple_call_tail_p:                    GIMPLE_CALL.        (line   85)
  * GIMPLE_CATCH:                          GIMPLE_CATCH.       (line    6)
! * gimple_catch_handler:                  GIMPLE_CATCH.       (line   20)
! * gimple_catch_set_handler:              GIMPLE_CATCH.       (line   28)
! * gimple_catch_set_types:                GIMPLE_CATCH.       (line   24)
! * gimple_catch_types:                    GIMPLE_CATCH.       (line   13)
! * gimple_catch_types_ptr:                GIMPLE_CATCH.       (line   16)
  * gimple_code:                           Manipulating GIMPLE statements.
!                                                              (line   15)
  * GIMPLE_COND:                           GIMPLE_COND.        (line    6)
! * gimple_cond_code:                      GIMPLE_COND.        (line   21)
! * gimple_cond_false_label:               GIMPLE_COND.        (line   60)
! * gimple_cond_lhs:                       GIMPLE_COND.        (line   30)
! * gimple_cond_make_false:                GIMPLE_COND.        (line   64)
! * gimple_cond_make_true:                 GIMPLE_COND.        (line   67)
! * gimple_cond_rhs:                       GIMPLE_COND.        (line   38)
! * gimple_cond_set_code:                  GIMPLE_COND.        (line   26)
! * gimple_cond_set_false_label:           GIMPLE_COND.        (line   56)
! * gimple_cond_set_lhs:                   GIMPLE_COND.        (line   34)
! * gimple_cond_set_rhs:                   GIMPLE_COND.        (line   42)
! * gimple_cond_set_true_label:            GIMPLE_COND.        (line   51)
! * gimple_cond_true_label:                GIMPLE_COND.        (line   46)
! * gimple_convert:                        GIMPLE API.         (line   52)
  * gimple_copy:                           Manipulating GIMPLE statements.
!                                                              (line  147)
  * GIMPLE_DEBUG:                          GIMPLE_DEBUG.       (line    6)
  * GIMPLE_DEBUG_BIND:                     GIMPLE_DEBUG.       (line    6)
! * gimple_debug_bind_get_value:           GIMPLE_DEBUG.       (line   48)
! * gimple_debug_bind_get_value_ptr:       GIMPLE_DEBUG.       (line   53)
! * gimple_debug_bind_get_var:             GIMPLE_DEBUG.       (line   45)
! * gimple_debug_bind_has_value_p:         GIMPLE_DEBUG.       (line   70)
! * gimple_debug_bind_p:                   Logical Operators.  (line  164)
! * gimple_debug_bind_reset_value:         GIMPLE_DEBUG.       (line   66)
! * gimple_debug_bind_set_value:           GIMPLE_DEBUG.       (line   62)
! * gimple_debug_bind_set_var:             GIMPLE_DEBUG.       (line   58)
  * gimple_def_ops:                        Manipulating GIMPLE statements.
!                                                              (line   94)
  * GIMPLE_EH_FILTER:                      GIMPLE_EH_FILTER.   (line    6)
! * gimple_eh_filter_failure:              GIMPLE_EH_FILTER.   (line   19)
! * gimple_eh_filter_set_failure:          GIMPLE_EH_FILTER.   (line   29)
! * gimple_eh_filter_set_types:            GIMPLE_EH_FILTER.   (line   24)
! * gimple_eh_filter_types:                GIMPLE_EH_FILTER.   (line   12)
! * gimple_eh_filter_types_ptr:            GIMPLE_EH_FILTER.   (line   15)
! * gimple_eh_must_not_throw_fndecl:       GIMPLE_EH_FILTER.   (line   34)
! * gimple_eh_must_not_throw_set_fndecl:   GIMPLE_EH_FILTER.   (line   38)
  * gimple_expr_code:                      Manipulating GIMPLE statements.
!                                                              (line   31)
  * gimple_expr_type:                      Manipulating GIMPLE statements.
!                                                              (line   24)
  * GIMPLE_GOTO:                           GIMPLE_GOTO.        (line    6)
! * gimple_goto_dest:                      GIMPLE_GOTO.        (line   10)
! * gimple_goto_set_dest:                  GIMPLE_GOTO.        (line   13)
  * gimple_has_mem_ops:                    Manipulating GIMPLE statements.
!                                                              (line   72)
  * gimple_has_ops:                        Manipulating GIMPLE statements.
!                                                              (line   69)
  * gimple_has_volatile_ops:               Manipulating GIMPLE statements.
!                                                              (line  134)
  * GIMPLE_LABEL:                          GIMPLE_LABEL.       (line    6)
! * gimple_label_label:                    GIMPLE_LABEL.       (line   11)
! * gimple_label_set_label:                GIMPLE_LABEL.       (line   14)
  * gimple_loaded_syms:                    Manipulating GIMPLE statements.
!                                                              (line  122)
  * gimple_locus:                          Manipulating GIMPLE statements.
!                                                              (line   42)
  * gimple_locus_empty_p:                  Manipulating GIMPLE statements.
!                                                              (line   48)
  * gimple_modified_p:                     Manipulating GIMPLE statements.
!                                                              (line  130)
! * gimple_no_warning_p:                   Manipulating GIMPLE statements.
!                                                              (line   51)
  * GIMPLE_NOP:                            GIMPLE_NOP.         (line    6)
! * gimple_nop_p:                          GIMPLE_NOP.         (line   10)
  * gimple_num_ops <1>:                    Manipulating GIMPLE statements.
!                                                              (line   75)
! * gimple_num_ops:                        Logical Operators.  (line   78)
  * GIMPLE_OMP_ATOMIC_LOAD:                GIMPLE_OMP_ATOMIC_LOAD.
                                                               (line    6)
  * gimple_omp_atomic_load_lhs:            GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   18)
  * gimple_omp_atomic_load_rhs:            GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   26)
  * gimple_omp_atomic_load_set_lhs:        GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   14)
  * gimple_omp_atomic_load_set_rhs:        GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   22)
  * GIMPLE_OMP_ATOMIC_STORE:               GIMPLE_OMP_ATOMIC_STORE.
                                                               (line    6)
  * gimple_omp_atomic_store_set_val:       GIMPLE_OMP_ATOMIC_STORE.
!                                                              (line   13)
  * gimple_omp_atomic_store_val:           GIMPLE_OMP_ATOMIC_STORE.
!                                                              (line   17)
  * gimple_omp_body:                       GIMPLE_OMP_PARALLEL.
!                                                              (line   24)
  * GIMPLE_OMP_CONTINUE:                   GIMPLE_OMP_CONTINUE.
                                                               (line    6)
  * gimple_omp_continue_control_def:       GIMPLE_OMP_CONTINUE.
!                                                              (line   14)
  * gimple_omp_continue_control_def_ptr:   GIMPLE_OMP_CONTINUE.
!                                                              (line   19)
  * gimple_omp_continue_control_use:       GIMPLE_OMP_CONTINUE.
!                                                              (line   28)
  * gimple_omp_continue_control_use_ptr:   GIMPLE_OMP_CONTINUE.
!                                                              (line   33)
  * gimple_omp_continue_set_control_def:   GIMPLE_OMP_CONTINUE.
!                                                              (line   23)
  * gimple_omp_continue_set_control_use:   GIMPLE_OMP_CONTINUE.
!                                                              (line   37)
  * GIMPLE_OMP_CRITICAL:                   GIMPLE_OMP_CRITICAL.
                                                               (line    6)
  * gimple_omp_critical_name:              GIMPLE_OMP_CRITICAL.
!                                                              (line   14)
  * gimple_omp_critical_name_ptr:          GIMPLE_OMP_CRITICAL.
!                                                              (line   18)
  * gimple_omp_critical_set_name:          GIMPLE_OMP_CRITICAL.
!                                                              (line   23)
  * GIMPLE_OMP_FOR:                        GIMPLE_OMP_FOR.     (line    6)
! * gimple_omp_for_clauses:                GIMPLE_OMP_FOR.     (line   18)
! * gimple_omp_for_clauses_ptr:            GIMPLE_OMP_FOR.     (line   21)
! * gimple_omp_for_cond:                   GIMPLE_OMP_FOR.     (line   81)
! * gimple_omp_for_final:                  GIMPLE_OMP_FOR.     (line   49)
! * gimple_omp_for_final_ptr:              GIMPLE_OMP_FOR.     (line   52)
! * gimple_omp_for_incr:                   GIMPLE_OMP_FOR.     (line   59)
! * gimple_omp_for_incr_ptr:               GIMPLE_OMP_FOR.     (line   62)
! * gimple_omp_for_index:                  GIMPLE_OMP_FOR.     (line   29)
! * gimple_omp_for_index_ptr:              GIMPLE_OMP_FOR.     (line   32)
! * gimple_omp_for_initial:                GIMPLE_OMP_FOR.     (line   39)
! * gimple_omp_for_initial_ptr:            GIMPLE_OMP_FOR.     (line   42)
! * gimple_omp_for_pre_body:               GIMPLE_OMP_FOR.     (line   68)
! * gimple_omp_for_set_clauses:            GIMPLE_OMP_FOR.     (line   25)
! * gimple_omp_for_set_cond:               GIMPLE_OMP_FOR.     (line   78)
! * gimple_omp_for_set_final:              GIMPLE_OMP_FOR.     (line   56)
! * gimple_omp_for_set_incr:               GIMPLE_OMP_FOR.     (line   65)
! * gimple_omp_for_set_index:              GIMPLE_OMP_FOR.     (line   36)
! * gimple_omp_for_set_initial:            GIMPLE_OMP_FOR.     (line   46)
! * gimple_omp_for_set_pre_body:           GIMPLE_OMP_FOR.     (line   73)
  * GIMPLE_OMP_MASTER:                     GIMPLE_OMP_MASTER.  (line    6)
  * GIMPLE_OMP_ORDERED:                    GIMPLE_OMP_ORDERED. (line    6)
  * GIMPLE_OMP_PARALLEL:                   GIMPLE_OMP_PARALLEL.
                                                               (line    6)
  * gimple_omp_parallel_child_fn:          GIMPLE_OMP_PARALLEL.
!                                                              (line   44)
  * gimple_omp_parallel_child_fn_ptr:      GIMPLE_OMP_PARALLEL.
!                                                              (line   49)
  * gimple_omp_parallel_clauses:           GIMPLE_OMP_PARALLEL.
!                                                              (line   31)
  * gimple_omp_parallel_clauses_ptr:       GIMPLE_OMP_PARALLEL.
!                                                              (line   35)
  * gimple_omp_parallel_combined_p:        GIMPLE_OMP_PARALLEL.
!                                                              (line   16)
  * gimple_omp_parallel_data_arg:          GIMPLE_OMP_PARALLEL.
!                                                              (line   58)
  * gimple_omp_parallel_data_arg_ptr:      GIMPLE_OMP_PARALLEL.
!                                                              (line   63)
  * gimple_omp_parallel_set_child_fn:      GIMPLE_OMP_PARALLEL.
!                                                              (line   54)
  * gimple_omp_parallel_set_clauses:       GIMPLE_OMP_PARALLEL.
!                                                              (line   39)
  * gimple_omp_parallel_set_combined_p:    GIMPLE_OMP_PARALLEL.
!                                                              (line   20)
  * gimple_omp_parallel_set_data_arg:      GIMPLE_OMP_PARALLEL.
!                                                              (line   67)
  * GIMPLE_OMP_RETURN:                     GIMPLE_OMP_RETURN.  (line    6)
! * gimple_omp_return_nowait_p:            GIMPLE_OMP_RETURN.  (line   14)
! * gimple_omp_return_set_nowait:          GIMPLE_OMP_RETURN.  (line   11)
  * GIMPLE_OMP_SECTION:                    GIMPLE_OMP_SECTION. (line    6)
- * gimple_omp_section_last_p:             GIMPLE_OMP_SECTION. (line   12)
- * gimple_omp_section_set_last:           GIMPLE_OMP_SECTION. (line   16)
  * GIMPLE_OMP_SECTIONS:                   GIMPLE_OMP_SECTIONS.
                                                               (line    6)
  * gimple_omp_sections_clauses:           GIMPLE_OMP_SECTIONS.
!                                                              (line   30)
  * gimple_omp_sections_clauses_ptr:       GIMPLE_OMP_SECTIONS.
!                                                              (line   33)
  * gimple_omp_sections_control:           GIMPLE_OMP_SECTIONS.
!                                                              (line   17)
  * gimple_omp_sections_control_ptr:       GIMPLE_OMP_SECTIONS.
!                                                              (line   21)
  * gimple_omp_sections_set_clauses:       GIMPLE_OMP_SECTIONS.
!                                                              (line   37)
  * gimple_omp_sections_set_control:       GIMPLE_OMP_SECTIONS.
!                                                              (line   26)
  * gimple_omp_set_body:                   GIMPLE_OMP_PARALLEL.
!                                                              (line   28)
  * GIMPLE_OMP_SINGLE:                     GIMPLE_OMP_SINGLE.  (line    6)
! * gimple_omp_single_clauses:             GIMPLE_OMP_SINGLE.  (line   14)
! * gimple_omp_single_clauses_ptr:         GIMPLE_OMP_SINGLE.  (line   17)
! * gimple_omp_single_set_clauses:         GIMPLE_OMP_SINGLE.  (line   21)
  * gimple_op <1>:                         Manipulating GIMPLE statements.
!                                                              (line   81)
! * gimple_op:                             Logical Operators.  (line   81)
! * gimple_op_ptr:                         Manipulating GIMPLE statements.
!                                                              (line   84)
  * gimple_ops <1>:                        Manipulating GIMPLE statements.
!                                                              (line   78)
! * gimple_ops:                            Logical Operators.  (line   84)
  * GIMPLE_PHI:                            GIMPLE_PHI.         (line    6)
! * gimple_phi_arg <1>:                    SSA.                (line   63)
! * gimple_phi_arg:                        GIMPLE_PHI.         (line   25)
! * gimple_phi_arg_def:                    SSA.                (line   69)
! * gimple_phi_arg_edge:                   SSA.                (line   66)
! * gimple_phi_capacity:                   GIMPLE_PHI.         (line    7)
! * gimple_phi_num_args <1>:               SSA.                (line   59)
! * gimple_phi_num_args:                   GIMPLE_PHI.         (line   11)
! * gimple_phi_result <1>:                 SSA.                (line   56)
! * gimple_phi_result:                     GIMPLE_PHI.         (line   16)
! * gimple_phi_result_ptr:                 GIMPLE_PHI.         (line   19)
! * gimple_phi_set_arg:                    GIMPLE_PHI.         (line   30)
! * gimple_phi_set_result:                 GIMPLE_PHI.         (line   22)
  * gimple_plf:                            Manipulating GIMPLE statements.
!                                                              (line   66)
  * GIMPLE_RESX:                           GIMPLE_RESX.        (line    6)
! * gimple_resx_region:                    GIMPLE_RESX.        (line   13)
! * gimple_resx_set_region:                GIMPLE_RESX.        (line   16)
  * GIMPLE_RETURN:                         GIMPLE_RETURN.      (line    6)
! * gimple_return_retval:                  GIMPLE_RETURN.      (line   10)
! * gimple_return_set_retval:              GIMPLE_RETURN.      (line   14)
! * gimple_seq_add_seq:                    GIMPLE sequences.   (line   32)
! * gimple_seq_add_stmt:                   GIMPLE sequences.   (line   26)
! * gimple_seq_alloc:                      GIMPLE sequences.   (line   62)
! * gimple_seq_copy:                       GIMPLE sequences.   (line   67)
! * gimple_seq_deep_copy:                  GIMPLE sequences.   (line   37)
! * gimple_seq_empty_p:                    GIMPLE sequences.   (line   70)
! * gimple_seq_first:                      GIMPLE sequences.   (line   44)
! * gimple_seq_init:                       GIMPLE sequences.   (line   59)
! * gimple_seq_last:                       GIMPLE sequences.   (line   47)
! * gimple_seq_reverse:                    GIMPLE sequences.   (line   40)
! * gimple_seq_set_first:                  GIMPLE sequences.   (line   55)
! * gimple_seq_set_last:                   GIMPLE sequences.   (line   51)
! * gimple_seq_singleton_p:                GIMPLE sequences.   (line   79)
  * gimple_set_block:                      Manipulating GIMPLE statements.
!                                                              (line   39)
  * gimple_set_def_ops:                    Manipulating GIMPLE statements.
!                                                              (line   98)
  * gimple_set_has_volatile_ops:           Manipulating GIMPLE statements.
!                                                              (line  138)
  * gimple_set_locus:                      Manipulating GIMPLE statements.
!                                                              (line   45)
  * gimple_set_op:                         Manipulating GIMPLE statements.
!                                                              (line   87)
  * gimple_set_plf:                        Manipulating GIMPLE statements.
!                                                              (line   62)
  * gimple_set_use_ops:                    Manipulating GIMPLE statements.
!                                                              (line  105)
  * gimple_set_vdef_ops:                   Manipulating GIMPLE statements.
!                                                              (line  119)
  * gimple_set_visited:                    Manipulating GIMPLE statements.
!                                                              (line   55)
  * gimple_set_vuse_ops:                   Manipulating GIMPLE statements.
!                                                              (line  112)
! * gimple_simplify:                       GIMPLE API.         (line    8)
  * gimple_statement_with_ops:             Tuple representation.
                                                               (line   96)
  * gimple_stored_syms:                    Manipulating GIMPLE statements.
!                                                              (line  126)
  * GIMPLE_SWITCH:                         GIMPLE_SWITCH.      (line    6)
! * gimple_switch_default_label:           GIMPLE_SWITCH.      (line   43)
! * gimple_switch_index:                   GIMPLE_SWITCH.      (line   25)
! * gimple_switch_label:                   GIMPLE_SWITCH.      (line   33)
! * gimple_switch_num_labels:              GIMPLE_SWITCH.      (line   16)
! * gimple_switch_set_default_label:       GIMPLE_SWITCH.      (line   47)
! * gimple_switch_set_index:               GIMPLE_SWITCH.      (line   29)
! * gimple_switch_set_label:               GIMPLE_SWITCH.      (line   38)
! * gimple_switch_set_num_labels:          GIMPLE_SWITCH.      (line   21)
  * GIMPLE_TRY:                            GIMPLE_TRY.         (line    6)
! * gimple_try_catch_is_cleanup:           GIMPLE_TRY.         (line   20)
! * gimple_try_cleanup:                    GIMPLE_TRY.         (line   27)
! * gimple_try_eval:                       GIMPLE_TRY.         (line   23)
! * gimple_try_kind:                       GIMPLE_TRY.         (line   16)
! * gimple_try_set_catch_is_cleanup:       GIMPLE_TRY.         (line   32)
! * gimple_try_set_cleanup:                GIMPLE_TRY.         (line   40)
! * gimple_try_set_eval:                   GIMPLE_TRY.         (line   35)
  * gimple_use_ops:                        Manipulating GIMPLE statements.
!                                                              (line  101)
  * gimple_vdef_ops:                       Manipulating GIMPLE statements.
!                                                              (line  115)
  * gimple_visited_p:                      Manipulating GIMPLE statements.
!                                                              (line   58)
  * gimple_vuse_ops:                       Manipulating GIMPLE statements.
!                                                              (line  108)
  * gimple_wce_cleanup:                    GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   11)
  * gimple_wce_cleanup_eh_only:            GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   18)
  * gimple_wce_set_cleanup:                GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   15)
  * gimple_wce_set_cleanup_eh_only:        GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   22)
  * GIMPLE_WITH_CLEANUP_EXPR:              GIMPLE_WITH_CLEANUP_EXPR.
                                                               (line    6)
  * gimplification <1>:                    Gimplification pass.
                                                               (line    6)
! * gimplification:                        Parsing pass.       (line   14)
! * gimplifier:                            Parsing pass.       (line   14)
! * gimplify_assign:                       GIMPLE_ASSIGN.      (line   43)
  * gimplify_expr:                         Gimplification pass.
                                                               (line   18)
  * gimplify_function_tree:                Gimplification pass.
                                                               (line   18)
  * GLOBAL_INIT_PRIORITY:                  Functions for C++.  (line  141)
  * global_regs:                           Register Basics.    (line   59)
! * GO_IF_LEGITIMATE_ADDRESS:              Addressing Modes.   (line   91)
  * greater than:                          Comparisons.        (line   60)
! * gsi_after_labels:                      Sequence iterators. (line   76)
! * gsi_bb:                                Sequence iterators. (line   83)
  * gsi_commit_edge_inserts <1>:           Maintaining the CFG.
!                                                              (line  107)
! * gsi_commit_edge_inserts:               Sequence iterators. (line  194)
! * gsi_commit_one_edge_insert:            Sequence iterators. (line  190)
  * gsi_end_p <1>:                         Maintaining the CFG.
!                                                              (line   49)
! * gsi_end_p:                             Sequence iterators. (line   60)
! * gsi_for_stmt:                          Sequence iterators. (line  157)
  * gsi_insert_after <1>:                  Maintaining the CFG.
!                                                              (line   61)
! * gsi_insert_after:                      Sequence iterators. (line  147)
  * gsi_insert_before <1>:                 Maintaining the CFG.
!                                                              (line   67)
! * gsi_insert_before:                     Sequence iterators. (line  136)
  * gsi_insert_on_edge <1>:                Maintaining the CFG.
!                                                              (line  107)
! * gsi_insert_on_edge:                    Sequence iterators. (line  174)
! * gsi_insert_on_edge_immediate:          Sequence iterators. (line  185)
! * gsi_insert_seq_after:                  Sequence iterators. (line  154)
! * gsi_insert_seq_before:                 Sequence iterators. (line  143)
! * gsi_insert_seq_on_edge:                Sequence iterators. (line  179)
  * gsi_last <1>:                          Maintaining the CFG.
!                                                              (line   45)
! * gsi_last:                              Sequence iterators. (line   50)
! * gsi_last_bb:                           Sequence iterators. (line   56)
! * gsi_link_after:                        Sequence iterators. (line  115)
! * gsi_link_before:                       Sequence iterators. (line  105)
! * gsi_link_seq_after:                    Sequence iterators. (line  110)
! * gsi_link_seq_before:                   Sequence iterators. (line   99)
! * gsi_move_after:                        Sequence iterators. (line  161)
! * gsi_move_before:                       Sequence iterators. (line  166)
! * gsi_move_to_bb_end:                    Sequence iterators. (line  171)
  * gsi_next <1>:                          Maintaining the CFG.
!                                                              (line   53)
! * gsi_next:                              Sequence iterators. (line   66)
! * gsi_one_before_end_p:                  Sequence iterators. (line   63)
  * gsi_prev <1>:                          Maintaining the CFG.
!                                                              (line   57)
! * gsi_prev:                              Sequence iterators. (line   69)
  * gsi_remove <1>:                        Maintaining the CFG.
!                                                              (line   73)
! * gsi_remove:                            Sequence iterators. (line   90)
! * gsi_replace:                           Sequence iterators. (line  130)
! * gsi_seq:                               Sequence iterators. (line   86)
! * gsi_split_seq_after:                   Sequence iterators. (line  120)
! * gsi_split_seq_before:                  Sequence iterators. (line  125)
  * gsi_start <1>:                         Maintaining the CFG.
!                                                              (line   41)
! * gsi_start:                             Sequence iterators. (line   40)
! * gsi_start_bb:                          Sequence iterators. (line   46)
! * gsi_stmt:                              Sequence iterators. (line   72)
! * gsi_stmt_ptr:                          Sequence iterators. (line   80)
  * gt:                                    Comparisons.        (line   60)
! * gt and attributes:                     Expressions.        (line   85)
! * GT_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
  * gtu:                                   Comparisons.        (line   64)
! * gtu and attributes:                    Expressions.        (line   85)
  * GTY:                                   Type Information.   (line    6)
! * H in constraint:                       Simple Constraints. (line   98)
! * HAmode:                                Machine Modes.      (line  147)
! * HANDLE_PRAGMA_PACK_WITH_EXPANSION:     Misc.               (line  444)
  * HANDLER:                               Statements for C++. (line    6)
  * HANDLER_BODY:                          Statements for C++. (line    6)
  * HANDLER_PARMS:                         Statements for C++. (line    6)
  * hard registers:                        Regs and Memory.    (line    9)
! * HARD_FRAME_POINTER_IS_ARG_POINTER:     Frame Registers.    (line   58)
! * HARD_FRAME_POINTER_IS_FRAME_POINTER:   Frame Registers.    (line   51)
! * HARD_FRAME_POINTER_REGNUM:             Frame Registers.    (line   20)
! * HARD_REGNO_CALL_PART_CLOBBERED:        Register Basics.    (line   53)
! * HARD_REGNO_CALLER_SAVE_MODE:           Caller Saves.       (line   11)
  * HARD_REGNO_MODE_OK:                    Values in Registers.
!                                                              (line   58)
  * HARD_REGNO_NREGS:                      Values in Registers.
!                                                              (line   11)
  * HARD_REGNO_NREGS_HAS_PADDING:          Values in Registers.
!                                                              (line   25)
  * HARD_REGNO_NREGS_WITH_PADDING:         Values in Registers.
!                                                              (line   43)
  * HARD_REGNO_RENAME_OK:                  Values in Registers.
!                                                              (line  119)
  * HAS_INIT_SECTION:                      Macros for Initialization.
!                                                              (line   19)
! * HAS_LONG_COND_BRANCH:                  Misc.               (line    9)
! * HAS_LONG_UNCOND_BRANCH:                Misc.               (line   18)
  * HAVE_DOS_BASED_FILE_SYSTEM:            Filesystem.         (line   11)
! * HAVE_POST_DECREMENT:                   Addressing Modes.   (line   12)
! * HAVE_POST_INCREMENT:                   Addressing Modes.   (line   11)
! * HAVE_POST_MODIFY_DISP:                 Addressing Modes.   (line   18)
! * HAVE_POST_MODIFY_REG:                  Addressing Modes.   (line   24)
! * HAVE_PRE_DECREMENT:                    Addressing Modes.   (line   10)
! * HAVE_PRE_INCREMENT:                    Addressing Modes.   (line    9)
! * HAVE_PRE_MODIFY_DISP:                  Addressing Modes.   (line   17)
! * HAVE_PRE_MODIFY_REG:                   Addressing Modes.   (line   23)
! * HCmode:                                Machine Modes.      (line  200)
  * HFmode:                                Machine Modes.      (line   61)
  * high:                                  Constants.          (line  150)
  * HImode:                                Machine Modes.      (line   29)
! * HImode, in insn:                       Insns.              (line  272)
! * HONOR_REG_ALLOC_ORDER:                 Allocation Order.   (line   37)
  * host configuration:                    Host Config.        (line    6)
  * host functions:                        Host Common.        (line    6)
  * host hooks:                            Host Common.        (line    6)
  * host makefile fragment:                Host Fragment.      (line    6)
  * HOST_BIT_BUCKET:                       Filesystem.         (line   51)
  * HOST_EXECUTABLE_SUFFIX:                Filesystem.         (line   45)
! * HOST_HOOKS_EXTRA_SIGNALS:              Host Common.        (line   12)
! * HOST_HOOKS_GT_PCH_ALLOC_GRANULARITY:   Host Common.        (line   45)
! * HOST_HOOKS_GT_PCH_GET_ADDRESS:         Host Common.        (line   17)
! * HOST_HOOKS_GT_PCH_USE_ADDRESS:         Host Common.        (line   26)
  * HOST_LACKS_INODE_NUMBERS:              Filesystem.         (line   89)
  * HOST_LONG_FORMAT:                      Host Misc.          (line   45)
  * HOST_LONG_LONG_FORMAT:                 Host Misc.          (line   41)
  * HOST_OBJECT_SUFFIX:                    Filesystem.         (line   40)
  * HOST_PTR_PRINTF:                       Host Misc.          (line   49)
! * HOT_TEXT_SECTION_NAME:                 Sections.           (line   43)
  * HQmode:                                Machine Modes.      (line  110)
! * I in constraint:                       Simple Constraints. (line   81)
! * i in constraint:                       Simple Constraints. (line   70)
  * identifier:                            Identifiers.        (line    6)
  * IDENTIFIER_LENGTH:                     Identifiers.        (line   22)
  * IDENTIFIER_NODE:                       Identifiers.        (line    6)
--- 48432,48950 ----
  * GIMPLE instruction set:                GIMPLE instruction set.
                                                               (line    6)
  * GIMPLE sequences:                      GIMPLE sequences.   (line    6)
  * GIMPLE statement iterators:            Basic Blocks.       (line   78)
+ * GIMPLE statement iterators <1>:        Maintaining the CFG.
+                                                              (line   33)
  * gimple_addresses_taken:                Manipulating GIMPLE statements.
!                                                              (line   89)
  * GIMPLE_ASM:                            GIMPLE_ASM.         (line    6)
! * gimple_asm_clobber_op:                 GIMPLE_ASM.         (line   39)
! * gimple_asm_input_op:                   GIMPLE_ASM.         (line   23)
! * gimple_asm_nclobbers:                  GIMPLE_ASM.         (line   20)
! * gimple_asm_ninputs:                    GIMPLE_ASM.         (line   14)
! * gimple_asm_noutputs:                   GIMPLE_ASM.         (line   17)
! * gimple_asm_output_op:                  GIMPLE_ASM.         (line   31)
! * gimple_asm_set_clobber_op:             GIMPLE_ASM.         (line   43)
! * gimple_asm_set_input_op:               GIMPLE_ASM.         (line   27)
! * gimple_asm_set_output_op:              GIMPLE_ASM.         (line   35)
! * gimple_asm_set_volatile:               GIMPLE_ASM.         (line   54)
! * gimple_asm_string:                     GIMPLE_ASM.         (line   47)
! * gimple_asm_volatile_p:                 GIMPLE_ASM.         (line   51)
  * GIMPLE_ASSIGN:                         GIMPLE_ASSIGN.      (line    6)
! * gimple_assign_cast_p:                  Logical Operators.  (line  158)
! * gimple_assign_cast_p <1>:              GIMPLE_ASSIGN.      (line  104)
! * gimple_assign_lhs:                     GIMPLE_ASSIGN.      (line   62)
! * gimple_assign_lhs_ptr:                 GIMPLE_ASSIGN.      (line   65)
! * gimple_assign_rhs1:                    GIMPLE_ASSIGN.      (line   68)
! * gimple_assign_rhs1_ptr:                GIMPLE_ASSIGN.      (line   71)
! * gimple_assign_rhs2:                    GIMPLE_ASSIGN.      (line   75)
! * gimple_assign_rhs2_ptr:                GIMPLE_ASSIGN.      (line   78)
! * gimple_assign_rhs3:                    GIMPLE_ASSIGN.      (line   82)
! * gimple_assign_rhs3_ptr:                GIMPLE_ASSIGN.      (line   85)
! * gimple_assign_rhs_class:               GIMPLE_ASSIGN.      (line   56)
! * gimple_assign_rhs_code:                GIMPLE_ASSIGN.      (line   52)
! * gimple_assign_set_lhs:                 GIMPLE_ASSIGN.      (line   89)
! * gimple_assign_set_rhs1:                GIMPLE_ASSIGN.      (line   92)
! * gimple_assign_set_rhs2:                GIMPLE_ASSIGN.      (line   96)
! * gimple_assign_set_rhs3:                GIMPLE_ASSIGN.      (line  100)
  * gimple_bb:                             Manipulating GIMPLE statements.
!                                                              (line   17)
  * GIMPLE_BIND:                           GIMPLE_BIND.        (line    6)
! * gimple_bind_add_seq:                   GIMPLE_BIND.        (line   34)
! * gimple_bind_add_stmt:                  GIMPLE_BIND.        (line   31)
! * gimple_bind_append_vars:               GIMPLE_BIND.        (line   18)
! * gimple_bind_block:                     GIMPLE_BIND.        (line   39)
! * gimple_bind_body:                      GIMPLE_BIND.        (line   22)
! * gimple_bind_set_block:                 GIMPLE_BIND.        (line   44)
! * gimple_bind_set_body:                  GIMPLE_BIND.        (line   26)
! * gimple_bind_set_vars:                  GIMPLE_BIND.        (line   14)
! * gimple_bind_vars:                      GIMPLE_BIND.        (line   11)
  * gimple_block:                          Manipulating GIMPLE statements.
!                                                              (line   20)
! * gimple_build:                          GIMPLE API.         (line   34)
! * gimple_build <1>:                      GIMPLE API.         (line   36)
! * gimple_build <2>:                      GIMPLE API.         (line   38)
! * gimple_build <3>:                      GIMPLE API.         (line   41)
! * gimple_build <4>:                      GIMPLE API.         (line   44)
! * gimple_build <5>:                      GIMPLE API.         (line   47)
! * gimple_build_nop:                      GIMPLE_NOP.         (line    6)
! * gimple_build_omp_master:               GIMPLE_OMP_MASTER.  (line    6)
! * gimple_build_omp_ordered:              GIMPLE_OMP_ORDERED. (line    6)
! * gimple_build_omp_return:               GIMPLE_OMP_RETURN.  (line    6)
! * gimple_build_omp_section:              GIMPLE_OMP_SECTION. (line    6)
  * gimple_build_omp_sections_switch:      GIMPLE_OMP_SECTIONS.
!                                                              (line   13)
  * gimple_build_wce:                      GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line    6)
  * GIMPLE_CALL:                           GIMPLE_CALL.        (line    6)
! * gimple_call_arg:                       GIMPLE_CALL.        (line   65)
! * gimple_call_arg_ptr:                   GIMPLE_CALL.        (line   69)
! * gimple_call_chain:                     GIMPLE_CALL.        (line   56)
! * gimple_call_copy_skip_args:            GIMPLE_CALL.        (line   90)
! * gimple_call_fn:                        GIMPLE_CALL.        (line   37)
! * gimple_call_fndecl:                    GIMPLE_CALL.        (line   45)
! * gimple_call_lhs:                       GIMPLE_CALL.        (line   28)
! * gimple_call_lhs_ptr:                   GIMPLE_CALL.        (line   31)
! * gimple_call_noreturn_p:                GIMPLE_CALL.        (line   87)
! * gimple_call_num_args:                  GIMPLE_CALL.        (line   62)
! * gimple_call_return_type:               GIMPLE_CALL.        (line   53)
! * gimple_call_set_arg:                   GIMPLE_CALL.        (line   74)
! * gimple_call_set_chain:                 GIMPLE_CALL.        (line   59)
! * gimple_call_set_fn:                    GIMPLE_CALL.        (line   41)
! * gimple_call_set_fndecl:                GIMPLE_CALL.        (line   50)
! * gimple_call_set_lhs:                   GIMPLE_CALL.        (line   34)
! * gimple_call_set_tail:                  GIMPLE_CALL.        (line   79)
! * gimple_call_tail_p:                    GIMPLE_CALL.        (line   84)
  * GIMPLE_CATCH:                          GIMPLE_CATCH.       (line    6)
! * gimple_catch_handler:                  GIMPLE_CATCH.       (line   19)
! * gimple_catch_set_handler:              GIMPLE_CATCH.       (line   26)
! * gimple_catch_set_types:                GIMPLE_CATCH.       (line   23)
! * gimple_catch_types:                    GIMPLE_CATCH.       (line   12)
! * gimple_catch_types_ptr:                GIMPLE_CATCH.       (line   15)
  * gimple_code:                           Manipulating GIMPLE statements.
!                                                              (line   14)
  * GIMPLE_COND:                           GIMPLE_COND.        (line    6)
! * gimple_cond_code:                      GIMPLE_COND.        (line   20)
! * gimple_cond_false_label:               GIMPLE_COND.        (line   59)
! * gimple_cond_lhs:                       GIMPLE_COND.        (line   29)
! * gimple_cond_make_false:                GIMPLE_COND.        (line   63)
! * gimple_cond_make_true:                 GIMPLE_COND.        (line   66)
! * gimple_cond_rhs:                       GIMPLE_COND.        (line   37)
! * gimple_cond_set_code:                  GIMPLE_COND.        (line   24)
! * gimple_cond_set_false_label:           GIMPLE_COND.        (line   54)
! * gimple_cond_set_lhs:                   GIMPLE_COND.        (line   33)
! * gimple_cond_set_rhs:                   GIMPLE_COND.        (line   41)
! * gimple_cond_set_true_label:            GIMPLE_COND.        (line   49)
! * gimple_cond_true_label:                GIMPLE_COND.        (line   45)
! * gimple_convert:                        GIMPLE API.         (line   50)
  * gimple_copy:                           Manipulating GIMPLE statements.
!                                                              (line  146)
  * GIMPLE_DEBUG:                          GIMPLE_DEBUG.       (line    6)
  * GIMPLE_DEBUG_BIND:                     GIMPLE_DEBUG.       (line    6)
! * gimple_debug_bind_get_value:           GIMPLE_DEBUG.       (line   46)
! * gimple_debug_bind_get_value_ptr:       GIMPLE_DEBUG.       (line   50)
! * gimple_debug_bind_get_var:             GIMPLE_DEBUG.       (line   43)
! * gimple_debug_bind_has_value_p:         GIMPLE_DEBUG.       (line   68)
! * gimple_debug_bind_p:                   Logical Operators.  (line  162)
! * gimple_debug_bind_reset_value:         GIMPLE_DEBUG.       (line   64)
! * gimple_debug_bind_set_value:           GIMPLE_DEBUG.       (line   59)
! * gimple_debug_bind_set_var:             GIMPLE_DEBUG.       (line   55)
  * gimple_def_ops:                        Manipulating GIMPLE statements.
!                                                              (line   93)
  * GIMPLE_EH_FILTER:                      GIMPLE_EH_FILTER.   (line    6)
! * gimple_eh_filter_failure:              GIMPLE_EH_FILTER.   (line   18)
! * gimple_eh_filter_set_failure:          GIMPLE_EH_FILTER.   (line   27)
! * gimple_eh_filter_set_types:            GIMPLE_EH_FILTER.   (line   22)
! * gimple_eh_filter_types:                GIMPLE_EH_FILTER.   (line   11)
! * gimple_eh_filter_types_ptr:            GIMPLE_EH_FILTER.   (line   14)
! * gimple_eh_must_not_throw_fndecl:       GIMPLE_EH_FILTER.   (line   32)
! * gimple_eh_must_not_throw_set_fndecl:   GIMPLE_EH_FILTER.   (line   36)
  * gimple_expr_code:                      Manipulating GIMPLE statements.
!                                                              (line   30)
  * gimple_expr_type:                      Manipulating GIMPLE statements.
!                                                              (line   23)
  * GIMPLE_GOTO:                           GIMPLE_GOTO.        (line    6)
! * gimple_goto_dest:                      GIMPLE_GOTO.        (line    9)
! * gimple_goto_set_dest:                  GIMPLE_GOTO.        (line   12)
  * gimple_has_mem_ops:                    Manipulating GIMPLE statements.
!                                                              (line   71)
  * gimple_has_ops:                        Manipulating GIMPLE statements.
!                                                              (line   68)
  * gimple_has_volatile_ops:               Manipulating GIMPLE statements.
!                                                              (line  133)
  * GIMPLE_LABEL:                          GIMPLE_LABEL.       (line    6)
! * gimple_label_label:                    GIMPLE_LABEL.       (line   10)
! * gimple_label_set_label:                GIMPLE_LABEL.       (line   13)
  * gimple_loaded_syms:                    Manipulating GIMPLE statements.
!                                                              (line  121)
  * gimple_locus:                          Manipulating GIMPLE statements.
!                                                              (line   41)
  * gimple_locus_empty_p:                  Manipulating GIMPLE statements.
!                                                              (line   47)
  * gimple_modified_p:                     Manipulating GIMPLE statements.
!                                                              (line  129)
  * GIMPLE_NOP:                            GIMPLE_NOP.         (line    6)
! * gimple_nop_p:                          GIMPLE_NOP.         (line    9)
! * gimple_no_warning_p:                   Manipulating GIMPLE statements.
!                                                              (line   50)
! * gimple_num_ops:                        Logical Operators.  (line   76)
  * gimple_num_ops <1>:                    Manipulating GIMPLE statements.
!                                                              (line   74)
  * GIMPLE_OMP_ATOMIC_LOAD:                GIMPLE_OMP_ATOMIC_LOAD.
                                                               (line    6)
  * gimple_omp_atomic_load_lhs:            GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   16)
  * gimple_omp_atomic_load_rhs:            GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   24)
  * gimple_omp_atomic_load_set_lhs:        GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   12)
  * gimple_omp_atomic_load_set_rhs:        GIMPLE_OMP_ATOMIC_LOAD.
!                                                              (line   20)
  * GIMPLE_OMP_ATOMIC_STORE:               GIMPLE_OMP_ATOMIC_STORE.
                                                               (line    6)
  * gimple_omp_atomic_store_set_val:       GIMPLE_OMP_ATOMIC_STORE.
!                                                              (line   11)
  * gimple_omp_atomic_store_val:           GIMPLE_OMP_ATOMIC_STORE.
!                                                              (line   15)
  * gimple_omp_body:                       GIMPLE_OMP_PARALLEL.
!                                                              (line   23)
  * GIMPLE_OMP_CONTINUE:                   GIMPLE_OMP_CONTINUE.
                                                               (line    6)
  * gimple_omp_continue_control_def:       GIMPLE_OMP_CONTINUE.
!                                                              (line   12)
  * gimple_omp_continue_control_def_ptr:   GIMPLE_OMP_CONTINUE.
!                                                              (line   17)
  * gimple_omp_continue_control_use:       GIMPLE_OMP_CONTINUE.
!                                                              (line   26)
  * gimple_omp_continue_control_use_ptr:   GIMPLE_OMP_CONTINUE.
!                                                              (line   31)
  * gimple_omp_continue_set_control_def:   GIMPLE_OMP_CONTINUE.
!                                                              (line   21)
  * gimple_omp_continue_set_control_use:   GIMPLE_OMP_CONTINUE.
!                                                              (line   35)
  * GIMPLE_OMP_CRITICAL:                   GIMPLE_OMP_CRITICAL.
                                                               (line    6)
  * gimple_omp_critical_name:              GIMPLE_OMP_CRITICAL.
!                                                              (line   12)
  * gimple_omp_critical_name_ptr:          GIMPLE_OMP_CRITICAL.
!                                                              (line   16)
  * gimple_omp_critical_set_name:          GIMPLE_OMP_CRITICAL.
!                                                              (line   21)
  * GIMPLE_OMP_FOR:                        GIMPLE_OMP_FOR.     (line    6)
! * gimple_omp_for_clauses:                GIMPLE_OMP_FOR.     (line   17)
! * gimple_omp_for_clauses_ptr:            GIMPLE_OMP_FOR.     (line   20)
! * gimple_omp_for_cond:                   GIMPLE_OMP_FOR.     (line   80)
! * gimple_omp_for_final:                  GIMPLE_OMP_FOR.     (line   48)
! * gimple_omp_for_final_ptr:              GIMPLE_OMP_FOR.     (line   51)
! * gimple_omp_for_incr:                   GIMPLE_OMP_FOR.     (line   58)
! * gimple_omp_for_incr_ptr:               GIMPLE_OMP_FOR.     (line   61)
! * gimple_omp_for_index:                  GIMPLE_OMP_FOR.     (line   28)
! * gimple_omp_for_index_ptr:              GIMPLE_OMP_FOR.     (line   31)
! * gimple_omp_for_initial:                GIMPLE_OMP_FOR.     (line   38)
! * gimple_omp_for_initial_ptr:            GIMPLE_OMP_FOR.     (line   41)
! * gimple_omp_for_pre_body:               GIMPLE_OMP_FOR.     (line   67)
! * gimple_omp_for_set_clauses:            GIMPLE_OMP_FOR.     (line   23)
! * gimple_omp_for_set_cond:               GIMPLE_OMP_FOR.     (line   76)
! * gimple_omp_for_set_final:              GIMPLE_OMP_FOR.     (line   54)
! * gimple_omp_for_set_incr:               GIMPLE_OMP_FOR.     (line   64)
! * gimple_omp_for_set_index:              GIMPLE_OMP_FOR.     (line   34)
! * gimple_omp_for_set_initial:            GIMPLE_OMP_FOR.     (line   44)
! * gimple_omp_for_set_pre_body:           GIMPLE_OMP_FOR.     (line   71)
  * GIMPLE_OMP_MASTER:                     GIMPLE_OMP_MASTER.  (line    6)
  * GIMPLE_OMP_ORDERED:                    GIMPLE_OMP_ORDERED. (line    6)
  * GIMPLE_OMP_PARALLEL:                   GIMPLE_OMP_PARALLEL.
                                                               (line    6)
  * gimple_omp_parallel_child_fn:          GIMPLE_OMP_PARALLEL.
!                                                              (line   42)
  * gimple_omp_parallel_child_fn_ptr:      GIMPLE_OMP_PARALLEL.
!                                                              (line   47)
  * gimple_omp_parallel_clauses:           GIMPLE_OMP_PARALLEL.
!                                                              (line   30)
  * gimple_omp_parallel_clauses_ptr:       GIMPLE_OMP_PARALLEL.
!                                                              (line   33)
  * gimple_omp_parallel_combined_p:        GIMPLE_OMP_PARALLEL.
!                                                              (line   15)
  * gimple_omp_parallel_data_arg:          GIMPLE_OMP_PARALLEL.
!                                                              (line   56)
  * gimple_omp_parallel_data_arg_ptr:      GIMPLE_OMP_PARALLEL.
!                                                              (line   61)
  * gimple_omp_parallel_set_child_fn:      GIMPLE_OMP_PARALLEL.
!                                                              (line   52)
  * gimple_omp_parallel_set_clauses:       GIMPLE_OMP_PARALLEL.
!                                                              (line   37)
  * gimple_omp_parallel_set_combined_p:    GIMPLE_OMP_PARALLEL.
!                                                              (line   19)
  * gimple_omp_parallel_set_data_arg:      GIMPLE_OMP_PARALLEL.
!                                                              (line   65)
  * GIMPLE_OMP_RETURN:                     GIMPLE_OMP_RETURN.  (line    6)
! * gimple_omp_return_nowait_p:            GIMPLE_OMP_RETURN.  (line   13)
! * gimple_omp_return_set_nowait:          GIMPLE_OMP_RETURN.  (line   10)
  * GIMPLE_OMP_SECTION:                    GIMPLE_OMP_SECTION. (line    6)
  * GIMPLE_OMP_SECTIONS:                   GIMPLE_OMP_SECTIONS.
                                                               (line    6)
  * gimple_omp_sections_clauses:           GIMPLE_OMP_SECTIONS.
!                                                              (line   29)
  * gimple_omp_sections_clauses_ptr:       GIMPLE_OMP_SECTIONS.
!                                                              (line   32)
  * gimple_omp_sections_control:           GIMPLE_OMP_SECTIONS.
!                                                              (line   16)
  * gimple_omp_sections_control_ptr:       GIMPLE_OMP_SECTIONS.
!                                                              (line   20)
  * gimple_omp_sections_set_clauses:       GIMPLE_OMP_SECTIONS.
!                                                              (line   35)
  * gimple_omp_sections_set_control:       GIMPLE_OMP_SECTIONS.
!                                                              (line   24)
! * gimple_omp_section_last_p:             GIMPLE_OMP_SECTION. (line   11)
! * gimple_omp_section_set_last:           GIMPLE_OMP_SECTION. (line   15)
  * gimple_omp_set_body:                   GIMPLE_OMP_PARALLEL.
!                                                              (line   26)
  * GIMPLE_OMP_SINGLE:                     GIMPLE_OMP_SINGLE.  (line    6)
! * gimple_omp_single_clauses:             GIMPLE_OMP_SINGLE.  (line   13)
! * gimple_omp_single_clauses_ptr:         GIMPLE_OMP_SINGLE.  (line   16)
! * gimple_omp_single_set_clauses:         GIMPLE_OMP_SINGLE.  (line   19)
! * gimple_op:                             Logical Operators.  (line   79)
  * gimple_op <1>:                         Manipulating GIMPLE statements.
!                                                              (line   80)
! * gimple_ops:                            Logical Operators.  (line   82)
  * gimple_ops <1>:                        Manipulating GIMPLE statements.
!                                                              (line   77)
! * gimple_op_ptr:                         Manipulating GIMPLE statements.
!                                                              (line   83)
  * GIMPLE_PHI:                            GIMPLE_PHI.         (line    6)
! * gimple_phi_arg:                        GIMPLE_PHI.         (line   24)
! * gimple_phi_arg <1>:                    SSA.                (line   62)
! * gimple_phi_arg_def:                    SSA.                (line   68)
! * gimple_phi_arg_edge:                   SSA.                (line   65)
! * gimple_phi_capacity:                   GIMPLE_PHI.         (line    6)
! * gimple_phi_num_args:                   GIMPLE_PHI.         (line   10)
! * gimple_phi_num_args <1>:               SSA.                (line   58)
! * gimple_phi_result:                     GIMPLE_PHI.         (line   15)
! * gimple_phi_result <1>:                 SSA.                (line   55)
! * gimple_phi_result_ptr:                 GIMPLE_PHI.         (line   18)
! * gimple_phi_set_arg:                    GIMPLE_PHI.         (line   28)
! * gimple_phi_set_result:                 GIMPLE_PHI.         (line   21)
  * gimple_plf:                            Manipulating GIMPLE statements.
!                                                              (line   64)
  * GIMPLE_RESX:                           GIMPLE_RESX.        (line    6)
! * gimple_resx_region:                    GIMPLE_RESX.        (line   12)
! * gimple_resx_set_region:                GIMPLE_RESX.        (line   15)
  * GIMPLE_RETURN:                         GIMPLE_RETURN.      (line    6)
! * gimple_return_retval:                  GIMPLE_RETURN.      (line    9)
! * gimple_return_set_retval:              GIMPLE_RETURN.      (line   12)
! * gimple_seq_add_seq:                    GIMPLE sequences.   (line   30)
! * gimple_seq_add_stmt:                   GIMPLE sequences.   (line   24)
! * gimple_seq_alloc:                      GIMPLE sequences.   (line   61)
! * gimple_seq_copy:                       GIMPLE sequences.   (line   65)
! * gimple_seq_deep_copy:                  GIMPLE sequences.   (line   36)
! * gimple_seq_empty_p:                    GIMPLE sequences.   (line   69)
! * gimple_seq_first:                      GIMPLE sequences.   (line   43)
! * gimple_seq_init:                       GIMPLE sequences.   (line   58)
! * gimple_seq_last:                       GIMPLE sequences.   (line   46)
! * gimple_seq_reverse:                    GIMPLE sequences.   (line   39)
! * gimple_seq_set_first:                  GIMPLE sequences.   (line   53)
! * gimple_seq_set_last:                   GIMPLE sequences.   (line   49)
! * gimple_seq_singleton_p:                GIMPLE sequences.   (line   78)
  * gimple_set_block:                      Manipulating GIMPLE statements.
!                                                              (line   38)
  * gimple_set_def_ops:                    Manipulating GIMPLE statements.
!                                                              (line   96)
  * gimple_set_has_volatile_ops:           Manipulating GIMPLE statements.
!                                                              (line  136)
  * gimple_set_locus:                      Manipulating GIMPLE statements.
!                                                              (line   44)
  * gimple_set_op:                         Manipulating GIMPLE statements.
!                                                              (line   86)
  * gimple_set_plf:                        Manipulating GIMPLE statements.
!                                                              (line   60)
  * gimple_set_use_ops:                    Manipulating GIMPLE statements.
!                                                              (line  103)
  * gimple_set_vdef_ops:                   Manipulating GIMPLE statements.
!                                                              (line  117)
  * gimple_set_visited:                    Manipulating GIMPLE statements.
!                                                              (line   53)
  * gimple_set_vuse_ops:                   Manipulating GIMPLE statements.
!                                                              (line  110)
! * gimple_simplify:                       GIMPLE API.         (line    6)
! * gimple_simplify <1>:                   GIMPLE API.         (line    8)
! * gimple_simplify <2>:                   GIMPLE API.         (line   10)
! * gimple_simplify <3>:                   GIMPLE API.         (line   12)
! * gimple_simplify <4>:                   GIMPLE API.         (line   14)
! * gimple_simplify <5>:                   GIMPLE API.         (line   16)
  * gimple_statement_with_ops:             Tuple representation.
                                                               (line   96)
  * gimple_stored_syms:                    Manipulating GIMPLE statements.
!                                                              (line  125)
  * GIMPLE_SWITCH:                         GIMPLE_SWITCH.      (line    6)
! * gimple_switch_default_label:           GIMPLE_SWITCH.      (line   41)
! * gimple_switch_index:                   GIMPLE_SWITCH.      (line   24)
! * gimple_switch_label:                   GIMPLE_SWITCH.      (line   31)
! * gimple_switch_num_labels:              GIMPLE_SWITCH.      (line   14)
! * gimple_switch_set_default_label:       GIMPLE_SWITCH.      (line   45)
! * gimple_switch_set_index:               GIMPLE_SWITCH.      (line   27)
! * gimple_switch_set_label:               GIMPLE_SWITCH.      (line   36)
! * gimple_switch_set_num_labels:          GIMPLE_SWITCH.      (line   19)
  * GIMPLE_TRY:                            GIMPLE_TRY.         (line    6)
! * gimple_try_catch_is_cleanup:           GIMPLE_TRY.         (line   19)
! * gimple_try_cleanup:                    GIMPLE_TRY.         (line   26)
! * gimple_try_eval:                       GIMPLE_TRY.         (line   22)
! * gimple_try_kind:                       GIMPLE_TRY.         (line   15)
! * gimple_try_set_catch_is_cleanup:       GIMPLE_TRY.         (line   30)
! * gimple_try_set_cleanup:                GIMPLE_TRY.         (line   38)
! * gimple_try_set_eval:                   GIMPLE_TRY.         (line   34)
  * gimple_use_ops:                        Manipulating GIMPLE statements.
!                                                              (line  100)
  * gimple_vdef_ops:                       Manipulating GIMPLE statements.
!                                                              (line  114)
  * gimple_visited_p:                      Manipulating GIMPLE statements.
!                                                              (line   57)
  * gimple_vuse_ops:                       Manipulating GIMPLE statements.
!                                                              (line  107)
  * gimple_wce_cleanup:                    GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   10)
  * gimple_wce_cleanup_eh_only:            GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   17)
  * gimple_wce_set_cleanup:                GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   13)
  * gimple_wce_set_cleanup_eh_only:        GIMPLE_WITH_CLEANUP_EXPR.
!                                                              (line   20)
  * GIMPLE_WITH_CLEANUP_EXPR:              GIMPLE_WITH_CLEANUP_EXPR.
                                                               (line    6)
+ * gimplification:                        Parsing pass.       (line   13)
  * gimplification <1>:                    Gimplification pass.
                                                               (line    6)
! * gimplifier:                            Parsing pass.       (line   13)
! * gimplify_assign:                       GIMPLE_ASSIGN.      (line   41)
  * gimplify_expr:                         Gimplification pass.
                                                               (line   18)
  * gimplify_function_tree:                Gimplification pass.
                                                               (line   18)
  * GLOBAL_INIT_PRIORITY:                  Functions for C++.  (line  141)
  * global_regs:                           Register Basics.    (line   59)
! * GO_IF_LEGITIMATE_ADDRESS:              Addressing Modes.   (line   90)
  * greater than:                          Comparisons.        (line   60)
! * greater than <1>:                      Comparisons.        (line   64)
! * greater than <2>:                      Comparisons.        (line   72)
! * gsi_after_labels:                      Sequence iterators. (line   74)
! * gsi_bb:                                Sequence iterators. (line   82)
! * gsi_commit_edge_inserts:               Sequence iterators. (line  193)
  * gsi_commit_edge_inserts <1>:           Maintaining the CFG.
!                                                              (line  105)
! * gsi_commit_one_edge_insert:            Sequence iterators. (line  188)
! * gsi_end_p:                             Sequence iterators. (line   59)
  * gsi_end_p <1>:                         Maintaining the CFG.
!                                                              (line   48)
! * gsi_for_stmt:                          Sequence iterators. (line  156)
! * gsi_insert_after:                      Sequence iterators. (line  145)
  * gsi_insert_after <1>:                  Maintaining the CFG.
!                                                              (line   60)
! * gsi_insert_before:                     Sequence iterators. (line  134)
  * gsi_insert_before <1>:                 Maintaining the CFG.
!                                                              (line   66)
! * gsi_insert_on_edge:                    Sequence iterators. (line  173)
  * gsi_insert_on_edge <1>:                Maintaining the CFG.
!                                                              (line  105)
! * gsi_insert_on_edge_immediate:          Sequence iterators. (line  183)
! * gsi_insert_seq_after:                  Sequence iterators. (line  152)
! * gsi_insert_seq_before:                 Sequence iterators. (line  141)
! * gsi_insert_seq_on_edge:                Sequence iterators. (line  177)
! * gsi_last:                              Sequence iterators. (line   49)
  * gsi_last <1>:                          Maintaining the CFG.
!                                                              (line   44)
! * gsi_last_bb:                           Sequence iterators. (line   55)
! * gsi_link_after:                        Sequence iterators. (line  113)
! * gsi_link_before:                       Sequence iterators. (line  103)
! * gsi_link_seq_after:                    Sequence iterators. (line  108)
! * gsi_link_seq_before:                   Sequence iterators. (line   97)
! * gsi_move_after:                        Sequence iterators. (line  159)
! * gsi_move_before:                       Sequence iterators. (line  164)
! * gsi_move_to_bb_end:                    Sequence iterators. (line  169)
! * gsi_next:                              Sequence iterators. (line   65)
  * gsi_next <1>:                          Maintaining the CFG.
!                                                              (line   52)
! * gsi_one_before_end_p:                  Sequence iterators. (line   62)
! * gsi_prev:                              Sequence iterators. (line   68)
  * gsi_prev <1>:                          Maintaining the CFG.
!                                                              (line   56)
! * gsi_remove:                            Sequence iterators. (line   88)
  * gsi_remove <1>:                        Maintaining the CFG.
!                                                              (line   72)
! * gsi_replace:                           Sequence iterators. (line  128)
! * gsi_seq:                               Sequence iterators. (line   85)
! * gsi_split_seq_after:                   Sequence iterators. (line  118)
! * gsi_split_seq_before:                  Sequence iterators. (line  123)
! * gsi_start:                             Sequence iterators. (line   39)
  * gsi_start <1>:                         Maintaining the CFG.
!                                                              (line   40)
! * gsi_start_bb:                          Sequence iterators. (line   45)
! * gsi_stmt:                              Sequence iterators. (line   71)
! * gsi_stmt_ptr:                          Sequence iterators. (line   79)
  * gt:                                    Comparisons.        (line   60)
! * gt and attributes:                     Expressions.        (line   83)
  * gtu:                                   Comparisons.        (line   64)
! * gtu and attributes:                    Expressions.        (line   83)
  * GTY:                                   Type Information.   (line    6)
! * GT_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
! * H in constraint:                       Simple Constraints. (line   96)
! * HAmode:                                Machine Modes.      (line  146)
  * HANDLER:                               Statements for C++. (line    6)
  * HANDLER_BODY:                          Statements for C++. (line    6)
  * HANDLER_PARMS:                         Statements for C++. (line    6)
+ * HANDLE_PRAGMA_PACK_WITH_EXPANSION:     Misc.               (line  442)
  * hard registers:                        Regs and Memory.    (line    9)
! * HARD_FRAME_POINTER_IS_ARG_POINTER:     Frame Registers.    (line   57)
! * HARD_FRAME_POINTER_IS_FRAME_POINTER:   Frame Registers.    (line   50)
! * HARD_FRAME_POINTER_REGNUM:             Frame Registers.    (line   19)
! * HARD_REGNO_CALLER_SAVE_MODE:           Caller Saves.       (line   10)
! * HARD_REGNO_CALL_PART_CLOBBERED:        Register Basics.    (line   52)
  * HARD_REGNO_MODE_OK:                    Values in Registers.
!                                                              (line   57)
  * HARD_REGNO_NREGS:                      Values in Registers.
!                                                              (line   10)
  * HARD_REGNO_NREGS_HAS_PADDING:          Values in Registers.
!                                                              (line   24)
  * HARD_REGNO_NREGS_WITH_PADDING:         Values in Registers.
!                                                              (line   42)
  * HARD_REGNO_RENAME_OK:                  Values in Registers.
!                                                              (line  117)
  * HAS_INIT_SECTION:                      Macros for Initialization.
!                                                              (line   18)
! * HAS_LONG_COND_BRANCH:                  Misc.               (line    8)
! * HAS_LONG_UNCOND_BRANCH:                Misc.               (line   17)
  * HAVE_DOS_BASED_FILE_SYSTEM:            Filesystem.         (line   11)
! * HAVE_POST_DECREMENT:                   Addressing Modes.   (line   11)
! * HAVE_POST_INCREMENT:                   Addressing Modes.   (line   10)
! * HAVE_POST_MODIFY_DISP:                 Addressing Modes.   (line   17)
! * HAVE_POST_MODIFY_REG:                  Addressing Modes.   (line   23)
! * HAVE_PRE_DECREMENT:                    Addressing Modes.   (line    9)
! * HAVE_PRE_INCREMENT:                    Addressing Modes.   (line    8)
! * HAVE_PRE_MODIFY_DISP:                  Addressing Modes.   (line   16)
! * HAVE_PRE_MODIFY_REG:                   Addressing Modes.   (line   22)
! * HCmode:                                Machine Modes.      (line  199)
  * HFmode:                                Machine Modes.      (line   61)
  * high:                                  Constants.          (line  150)
  * HImode:                                Machine Modes.      (line   29)
! * HImode, in insn:                       Insns.              (line  268)
! * HONOR_REG_ALLOC_ORDER:                 Allocation Order.   (line   36)
  * host configuration:                    Host Config.        (line    6)
  * host functions:                        Host Common.        (line    6)
  * host hooks:                            Host Common.        (line    6)
  * host makefile fragment:                Host Fragment.      (line    6)
  * HOST_BIT_BUCKET:                       Filesystem.         (line   51)
  * HOST_EXECUTABLE_SUFFIX:                Filesystem.         (line   45)
! * HOST_HOOKS_EXTRA_SIGNALS:              Host Common.        (line   11)
! * HOST_HOOKS_GT_PCH_ALLOC_GRANULARITY:   Host Common.        (line   43)
! * HOST_HOOKS_GT_PCH_GET_ADDRESS:         Host Common.        (line   15)
! * HOST_HOOKS_GT_PCH_USE_ADDRESS:         Host Common.        (line   24)
  * HOST_LACKS_INODE_NUMBERS:              Filesystem.         (line   89)
  * HOST_LONG_FORMAT:                      Host Misc.          (line   45)
  * HOST_LONG_LONG_FORMAT:                 Host Misc.          (line   41)
  * HOST_OBJECT_SUFFIX:                    Filesystem.         (line   40)
  * HOST_PTR_PRINTF:                       Host Misc.          (line   49)
! * HOT_TEXT_SECTION_NAME:                 Sections.           (line   42)
  * HQmode:                                Machine Modes.      (line  110)
! * i in constraint:                       Simple Constraints. (line   68)
! * I in constraint:                       Simple Constraints. (line   79)
  * identifier:                            Identifiers.        (line    6)
  * IDENTIFIER_LENGTH:                     Identifiers.        (line   22)
  * IDENTIFIER_NODE:                       Identifiers.        (line    6)
*************** Concept Index
*** 49387,49452 ****
  * IDENTIFIER_TYPENAME_P:                 Identifiers.        (line   33)
  * IEEE 754-2008:                         Decimal float library routines.
                                                               (line    6)
  * IF_COND:                               Statements for C++. (line    6)
  * IF_STMT:                               Statements for C++. (line    6)
  * if_then_else:                          Comparisons.        (line   80)
  * if_then_else and attributes:           Expressions.        (line   32)
  * if_then_else usage:                    Side Effects.       (line   56)
- * IFCVT_MACHDEP_INIT:                    Misc.               (line  569)
- * IFCVT_MODIFY_CANCEL:                   Misc.               (line  563)
- * IFCVT_MODIFY_FINAL:                    Misc.               (line  557)
- * IFCVT_MODIFY_INSN:                     Misc.               (line  551)
- * IFCVT_MODIFY_MULTIPLE_TESTS:           Misc.               (line  544)
- * IFCVT_MODIFY_TESTS:                    Misc.               (line  533)
  * IMAGPART_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
! * Immediate Uses:                        SSA Operands.       (line  261)
  * immediate_operand:                     Machine-Independent Predicates.
!                                                              (line   11)
! * IMMEDIATE_PREFIX:                      Instruction Output. (line  155)
! * in_struct:                             Flags.              (line  245)
! * in_struct, in code_label and note:     Flags.              (line   59)
! * in_struct, in insn and jump_insn and call_insn: Flags.     (line   49)
! * in_struct, in insn, call_insn, jump_insn and jump_table_data: Flags.
!                                                              (line  148)
! * in_struct, in subreg:                  Flags.              (line  187)
  * include:                               Including Patterns. (line    6)
! * INCLUDE_DEFAULTS:                      Driver.             (line  332)
! * inclusive-or, bitwise:                 Arithmetic.         (line  162)
! * INCOMING_FRAME_SP_OFFSET:              Frame Layout.       (line  181)
! * INCOMING_REG_PARM_STACK_SPACE:         Stack Arguments.    (line   74)
! * INCOMING_REGNO:                        Register Basics.    (line   87)
! * INCOMING_RETURN_ADDR_RTX:              Frame Layout.       (line  137)
! * INCOMING_STACK_BOUNDARY:               Storage Layout.     (line  156)
! * INDEX_REG_CLASS:                       Register Classes.   (line  143)
! * indirect_jump instruction pattern:     Standard Names.     (line 1461)
  * indirect_operand:                      Machine-Independent Predicates.
!                                                              (line   71)
  * INDIRECT_REF:                          Storage References. (line    6)
! * INIT_ARRAY_SECTION_ASM_OP:             Sections.           (line  107)
! * INIT_CUMULATIVE_ARGS:                  Register Arguments. (line  164)
! * INIT_CUMULATIVE_INCOMING_ARGS:         Register Arguments. (line  191)
! * INIT_CUMULATIVE_LIBCALL_ARGS:          Register Arguments. (line  185)
! * INIT_ENVIRONMENT:                      Driver.             (line  310)
! * INIT_EXPANDERS:                        Per-Function Data.  (line   39)
  * INIT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * init_machine_status:                   Per-Function Data.  (line   45)
  * init_one_libfunc:                      Library Calls.      (line   15)
  * INIT_SECTION_ASM_OP <1>:               Macros for Initialization.
!                                                              (line   10)
! * INIT_SECTION_ASM_OP:                   Sections.           (line   91)
! * INITIAL_ELIMINATION_OFFSET:            Elimination.        (line   85)
! * INITIAL_FRAME_ADDRESS_RTX:             Frame Layout.       (line   79)
! * INITIAL_FRAME_POINTER_OFFSET:          Elimination.        (line   35)
! * initialization routines:               Initialization.     (line    6)
  * inlining:                              Target Attributes.  (line   95)
  * insert_insn_on_edge:                   Maintaining the CFG.
!                                                              (line  107)
  * insn:                                  Insns.              (line   63)
  * insn and /f:                           Flags.              (line  107)
  * insn and /j:                           Flags.              (line  157)
  * insn and /s:                           Flags.              (line   49)
  * insn and /u:                           Flags.              (line   39)
  * insn and /v:                           Flags.              (line   44)
  * insn attributes:                       Insn Attributes.    (line    6)
--- 48953,49013 ----
  * IDENTIFIER_TYPENAME_P:                 Identifiers.        (line   33)
  * IEEE 754-2008:                         Decimal float library routines.
                                                               (line    6)
+ * IFCVT_MACHDEP_INIT:                    Misc.               (line  568)
+ * IFCVT_MODIFY_CANCEL:                   Misc.               (line  562)
+ * IFCVT_MODIFY_FINAL:                    Misc.               (line  556)
+ * IFCVT_MODIFY_INSN:                     Misc.               (line  550)
+ * IFCVT_MODIFY_MULTIPLE_TESTS:           Misc.               (line  542)
+ * IFCVT_MODIFY_TESTS:                    Misc.               (line  532)
  * IF_COND:                               Statements for C++. (line    6)
  * IF_STMT:                               Statements for C++. (line    6)
  * if_then_else:                          Comparisons.        (line   80)
  * if_then_else and attributes:           Expressions.        (line   32)
  * if_then_else usage:                    Side Effects.       (line   56)
  * IMAGPART_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
! * Immediate Uses:                        SSA Operands.       (line  258)
  * immediate_operand:                     Machine-Independent Predicates.
!                                                              (line   10)
! * IMMEDIATE_PREFIX:                      Instruction Output. (line  153)
  * include:                               Including Patterns. (line    6)
! * INCLUDE_DEFAULTS:                      Driver.             (line  331)
! * inclusive-or, bitwise:                 Arithmetic.         (line  163)
! * INCOMING_FRAME_SP_OFFSET:              Frame Layout.       (line  179)
! * INCOMING_REGNO:                        Register Basics.    (line   86)
! * INCOMING_REG_PARM_STACK_SPACE:         Stack Arguments.    (line   73)
! * INCOMING_RETURN_ADDR_RTX:              Frame Layout.       (line  135)
! * INCOMING_STACK_BOUNDARY:               Storage Layout.     (line  154)
! * INDEX_REG_CLASS:                       Register Classes.   (line  140)
! * indirect_jump instruction pattern:     Standard Names.     (line 1454)
  * indirect_operand:                      Machine-Independent Predicates.
!                                                              (line   70)
  * INDIRECT_REF:                          Storage References. (line    6)
! * initialization routines:               Initialization.     (line    6)
! * INITIAL_ELIMINATION_OFFSET:            Elimination.        (line   84)
! * INITIAL_FRAME_ADDRESS_RTX:             Frame Layout.       (line   77)
! * INITIAL_FRAME_POINTER_OFFSET:          Elimination.        (line   34)
! * INIT_ARRAY_SECTION_ASM_OP:             Sections.           (line  106)
! * INIT_CUMULATIVE_ARGS:                  Register Arguments. (line  161)
! * INIT_CUMULATIVE_INCOMING_ARGS:         Register Arguments. (line  189)
! * INIT_CUMULATIVE_LIBCALL_ARGS:          Register Arguments. (line  183)
! * INIT_ENVIRONMENT:                      Driver.             (line  309)
! * INIT_EXPANDERS:                        Per-Function Data.  (line   36)
  * INIT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * init_machine_status:                   Per-Function Data.  (line   42)
  * init_one_libfunc:                      Library Calls.      (line   15)
+ * INIT_SECTION_ASM_OP:                   Sections.           (line   90)
  * INIT_SECTION_ASM_OP <1>:               Macros for Initialization.
!                                                              (line    9)
  * inlining:                              Target Attributes.  (line   95)
  * insert_insn_on_edge:                   Maintaining the CFG.
!                                                              (line  105)
  * insn:                                  Insns.              (line   63)
  * insn and /f:                           Flags.              (line  107)
  * insn and /j:                           Flags.              (line  157)
  * insn and /s:                           Flags.              (line   49)
+ * insn and /s <1>:                       Flags.              (line  148)
  * insn and /u:                           Flags.              (line   39)
  * insn and /v:                           Flags.              (line   44)
  * insn attributes:                       Insn Attributes.    (line    6)
*************** Concept Index
*** 49458,49497 ****
  * insn splitting:                        Insn Splitting.     (line    6)
  * insn-attr.h:                           Defining Attributes.
                                                               (line   34)
  * INSN_ANNULLED_BRANCH_P:                Flags.              (line   39)
! * INSN_CODE:                             Insns.              (line  299)
  * INSN_DELETED_P:                        Flags.              (line   44)
  * INSN_FROM_TARGET_P:                    Flags.              (line   49)
! * insn_list:                             Insns.              (line  548)
! * INSN_REFERENCES_ARE_DELAYED:           Misc.               (line  471)
! * INSN_SETS_ARE_DELAYED:                 Misc.               (line  460)
  * INSN_UID:                              Insns.              (line   23)
! * INSN_VAR_LOCATION:                     Insns.              (line  239)
! * insns:                                 Insns.              (line    6)
! * insns, generating:                     RTL Template.       (line    6)
! * insns, recognizing:                    RTL Template.       (line    6)
  * instruction attributes:                Insn Attributes.    (line    6)
  * instruction latency time:              Processor pipeline description.
                                                               (line    6)
  * instruction patterns:                  Patterns.           (line    6)
  * instruction splitting:                 Insn Splitting.     (line    6)
! * insv instruction pattern:              Standard Names.     (line 1245)
! * insvM instruction pattern:             Standard Names.     (line 1197)
! * insvmisalignM instruction pattern:     Standard Names.     (line 1207)
  * int iterators in .md files:            Int Iterators.      (line    6)
! * INT16_TYPE:                            Type Layout.        (line  217)
! * INT32_TYPE:                            Type Layout.        (line  218)
! * INT64_TYPE:                            Type Layout.        (line  219)
! * INT8_TYPE:                             Type Layout.        (line  216)
! * INT_FAST16_TYPE:                       Type Layout.        (line  233)
! * INT_FAST32_TYPE:                       Type Layout.        (line  234)
! * INT_FAST64_TYPE:                       Type Layout.        (line  235)
! * INT_FAST8_TYPE:                        Type Layout.        (line  232)
! * INT_LEAST16_TYPE:                      Type Layout.        (line  225)
! * INT_LEAST32_TYPE:                      Type Layout.        (line  226)
! * INT_LEAST64_TYPE:                      Type Layout.        (line  227)
! * INT_LEAST8_TYPE:                       Type Layout.        (line  224)
! * INT_TYPE_SIZE:                         Type Layout.        (line   12)
  * INTEGER_CST:                           Constant expressions.
                                                               (line    6)
  * INTEGER_TYPE:                          Types.              (line    6)
--- 49019,49053 ----
  * insn splitting:                        Insn Splitting.     (line    6)
  * insn-attr.h:                           Defining Attributes.
                                                               (line   34)
+ * insns:                                 Insns.              (line    6)
+ * insns, generating:                     RTL Template.       (line    6)
+ * insns, recognizing:                    RTL Template.       (line    6)
  * INSN_ANNULLED_BRANCH_P:                Flags.              (line   39)
! * INSN_CODE:                             Insns.              (line  295)
  * INSN_DELETED_P:                        Flags.              (line   44)
  * INSN_FROM_TARGET_P:                    Flags.              (line   49)
! * insn_list:                             Insns.              (line  540)
! * INSN_REFERENCES_ARE_DELAYED:           Misc.               (line  469)
! * INSN_SETS_ARE_DELAYED:                 Misc.               (line  458)
  * INSN_UID:                              Insns.              (line   23)
! * INSN_VAR_LOCATION:                     Insns.              (line  236)
  * instruction attributes:                Insn Attributes.    (line    6)
  * instruction latency time:              Processor pipeline description.
                                                               (line    6)
+ * instruction latency time <1>:          Processor pipeline description.
+                                                              (line  105)
+ * instruction latency time <2>:          Processor pipeline description.
+                                                              (line  196)
  * instruction patterns:                  Patterns.           (line    6)
  * instruction splitting:                 Insn Splitting.     (line    6)
! * insv instruction pattern:              Standard Names.     (line 1239)
! * insvM instruction pattern:             Standard Names.     (line 1191)
! * insvmisalignM instruction pattern:     Standard Names.     (line 1201)
  * int iterators in .md files:            Int Iterators.      (line    6)
! * INT16_TYPE:                            Type Layout.        (line  216)
! * INT32_TYPE:                            Type Layout.        (line  217)
! * INT64_TYPE:                            Type Layout.        (line  218)
! * INT8_TYPE:                             Type Layout.        (line  215)
  * INTEGER_CST:                           Constant expressions.
                                                               (line    6)
  * INTEGER_TYPE:                          Types.              (line    6)
*************** Concept Index
*** 49499,49558 ****
  * interfacing to GCC output:             Interface.          (line    6)
  * interlock delays:                      Processor pipeline description.
                                                               (line    6)
! * intermediate representation lowering:  Parsing pass.       (line   14)
! * INTMAX_TYPE:                           Type Layout.        (line  193)
! * INTPTR_TYPE:                           Type Layout.        (line  240)
  * introduction:                          Top.                (line    6)
  * INVOKE__main:                          Macros for Initialization.
!                                                              (line   51)
! * ior:                                   Arithmetic.         (line  162)
  * ior and attributes:                    Expressions.        (line   50)
  * ior, canonicalization of:              Insn Canonicalizations.
!                                                              (line   52)
! * iorM3 instruction pattern:             Standard Names.     (line  305)
! * IRA_HARD_REGNO_ADD_COST_MULTIPLIER:    Allocation Order.   (line   46)
! * IS_ASM_LOGICAL_LINE_SEPARATOR:         Data Output.        (line  125)
! * is_gimple_addressable:                 Logical Operators.  (line  115)
! * is_gimple_asm_val:                     Logical Operators.  (line  119)
! * is_gimple_assign:                      Logical Operators.  (line  151)
! * is_gimple_call:                        Logical Operators.  (line  154)
! * is_gimple_call_addr:                   Logical Operators.  (line  122)
! * is_gimple_constant:                    Logical Operators.  (line  130)
! * is_gimple_debug:                       Logical Operators.  (line  157)
! * is_gimple_ip_invariant:                Logical Operators.  (line  139)
! * is_gimple_ip_invariant_address:        Logical Operators.  (line  144)
! * is_gimple_mem_ref_addr:                Logical Operators.  (line  126)
! * is_gimple_min_invariant:               Logical Operators.  (line  133)
! * is_gimple_omp:                         Logical Operators.  (line  168)
! * is_gimple_val:                         Logical Operators.  (line  109)
  * iterators in .md files:                Iterators.          (line    6)
  * IV analysis on GIMPLE:                 Scalar evolutions.  (line    6)
  * IV analysis on RTL:                    loop-iv.            (line    6)
  * JMP_BUF_SIZE:                          Exception Region Output.
!                                                              (line   85)
  * jump:                                  Flags.              (line  286)
! * jump instruction pattern:              Standard Names.     (line 1338)
  * jump instruction patterns:             Jump Patterns.      (line    6)
  * jump instructions and set:             Side Effects.       (line   56)
  * jump, in call_insn:                    Flags.              (line  161)
  * jump, in insn:                         Flags.              (line  157)
  * jump, in mem:                          Flags.              (line   70)
! * JUMP_ALIGN:                            Alignment Output.   (line    9)
  * jump_insn:                             Insns.              (line   73)
  * jump_insn and /f:                      Flags.              (line  107)
  * jump_insn and /s:                      Flags.              (line   49)
  * jump_insn and /u:                      Flags.              (line   39)
  * jump_insn and /v:                      Flags.              (line   44)
  * JUMP_LABEL:                            Insns.              (line   80)
  * jump_table_data:                       Insns.              (line  166)
  * jump_table_data and /s:                Flags.              (line  148)
  * jump_table_data and /v:                Flags.              (line   44)
! * JUMP_TABLES_IN_TEXT_SECTION:           Sections.           (line  151)
! * Jumps:                                 Jumps.              (line    6)
! * LABEL_ALIGN:                           Alignment Output.   (line   58)
! * LABEL_ALIGN_AFTER_BARRIER:             Alignment Output.   (line   27)
  * LABEL_ALT_ENTRY_P:                     Insns.              (line  146)
- * LABEL_ALTERNATE_NAME:                  Edges.              (line  181)
  * LABEL_DECL:                            Declarations.       (line    6)
  * LABEL_KIND:                            Insns.              (line  146)
  * LABEL_NUSES:                           Insns.              (line  142)
--- 49055,49130 ----
  * interfacing to GCC output:             Interface.          (line    6)
  * interlock delays:                      Processor pipeline description.
                                                               (line    6)
! * intermediate representation lowering:  Parsing pass.       (line   13)
! * INTMAX_TYPE:                           Type Layout.        (line  192)
! * INTPTR_TYPE:                           Type Layout.        (line  239)
  * introduction:                          Top.                (line    6)
+ * INT_FAST16_TYPE:                       Type Layout.        (line  232)
+ * INT_FAST32_TYPE:                       Type Layout.        (line  233)
+ * INT_FAST64_TYPE:                       Type Layout.        (line  234)
+ * INT_FAST8_TYPE:                        Type Layout.        (line  231)
+ * INT_LEAST16_TYPE:                      Type Layout.        (line  224)
+ * INT_LEAST32_TYPE:                      Type Layout.        (line  225)
+ * INT_LEAST64_TYPE:                      Type Layout.        (line  226)
+ * INT_LEAST8_TYPE:                       Type Layout.        (line  223)
+ * INT_TYPE_SIZE:                         Type Layout.        (line   11)
  * INVOKE__main:                          Macros for Initialization.
!                                                              (line   50)
! * in_struct:                             Flags.              (line  245)
! * in_struct, in code_label and note:     Flags.              (line   59)
! * in_struct, in insn and jump_insn and call_insn: Flags.     (line   49)
! * in_struct, in insn, call_insn, jump_insn and jump_table_data: Flags.
!                                                              (line  148)
! * in_struct, in subreg:                  Flags.              (line  187)
! * ior:                                   Arithmetic.         (line  163)
  * ior and attributes:                    Expressions.        (line   50)
  * ior, canonicalization of:              Insn Canonicalizations.
!                                                              (line   51)
! * iorM3 instruction pattern:             Standard Names.     (line  301)
! * IRA_HARD_REGNO_ADD_COST_MULTIPLIER:    Allocation Order.   (line   44)
! * IS_ASM_LOGICAL_LINE_SEPARATOR:         Data Output.        (line  123)
! * is_gimple_addressable:                 Logical Operators.  (line  113)
! * is_gimple_asm_val:                     Logical Operators.  (line  117)
! * is_gimple_assign:                      Logical Operators.  (line  149)
! * is_gimple_call:                        Logical Operators.  (line  152)
! * is_gimple_call_addr:                   Logical Operators.  (line  120)
! * is_gimple_constant:                    Logical Operators.  (line  128)
! * is_gimple_debug:                       Logical Operators.  (line  155)
! * is_gimple_ip_invariant:                Logical Operators.  (line  137)
! * is_gimple_ip_invariant_address:        Logical Operators.  (line  142)
! * is_gimple_mem_ref_addr:                Logical Operators.  (line  124)
! * is_gimple_min_invariant:               Logical Operators.  (line  131)
! * is_gimple_omp:                         Logical Operators.  (line  166)
! * is_gimple_val:                         Logical Operators.  (line  107)
  * iterators in .md files:                Iterators.          (line    6)
  * IV analysis on GIMPLE:                 Scalar evolutions.  (line    6)
  * IV analysis on RTL:                    loop-iv.            (line    6)
  * JMP_BUF_SIZE:                          Exception Region Output.
!                                                              (line   83)
  * jump:                                  Flags.              (line  286)
! * jump instruction pattern:              Standard Names.     (line 1332)
  * jump instruction patterns:             Jump Patterns.      (line    6)
  * jump instructions and set:             Side Effects.       (line   56)
  * jump, in call_insn:                    Flags.              (line  161)
  * jump, in insn:                         Flags.              (line  157)
  * jump, in mem:                          Flags.              (line   70)
! * Jumps:                                 Jumps.              (line    6)
! * JUMP_ALIGN:                            Alignment Output.   (line    8)
  * jump_insn:                             Insns.              (line   73)
  * jump_insn and /f:                      Flags.              (line  107)
  * jump_insn and /s:                      Flags.              (line   49)
+ * jump_insn and /s <1>:                  Flags.              (line  148)
  * jump_insn and /u:                      Flags.              (line   39)
  * jump_insn and /v:                      Flags.              (line   44)
  * JUMP_LABEL:                            Insns.              (line   80)
+ * JUMP_TABLES_IN_TEXT_SECTION:           Sections.           (line  150)
  * jump_table_data:                       Insns.              (line  166)
  * jump_table_data and /s:                Flags.              (line  148)
  * jump_table_data and /v:                Flags.              (line   44)
! * LABEL_ALIGN:                           Alignment Output.   (line   57)
! * LABEL_ALIGN_AFTER_BARRIER:             Alignment Output.   (line   26)
! * LABEL_ALTERNATE_NAME:                  Edges.              (line  180)
  * LABEL_ALT_ENTRY_P:                     Insns.              (line  146)
  * LABEL_DECL:                            Declarations.       (line    6)
  * LABEL_KIND:                            Insns.              (line  146)
  * LABEL_NUSES:                           Insns.              (line  142)
*************** Concept Index
*** 49561,49650 ****
  * label_ref and /v:                      Flags.              (line   65)
  * label_ref, RTL sharing:                Sharing.            (line   35)
  * LABEL_REF_NONLOCAL_P:                  Flags.              (line   65)
- * lang_hooks.gimplify_expr:              Gimplification pass.
-                                                              (line   18)
- * lang_hooks.parse_file:                 Parsing pass.       (line    6)
  * language-dependent trees:              Language-dependent trees.
                                                               (line    6)
  * language-independent intermediate representation: Parsing pass.
!                                                              (line   14)
  * large return values:                   Aggregate Return.   (line    6)
! * LAST_STACK_REG:                        Stack Registers.    (line   31)
  * LAST_VIRTUAL_REGISTER:                 Regs and Memory.    (line   51)
! * lceilMN2:                              Standard Names.     (line  866)
  * LCSSA:                                 LCSSA.              (line    6)
  * LD_FINI_SWITCH:                        Macros for Initialization.
!                                                              (line   29)
  * LD_INIT_SWITCH:                        Macros for Initialization.
!                                                              (line   25)
! * LDD_SUFFIX:                            Macros for Initialization.
!                                                              (line  122)
! * ldexpM3 instruction pattern:           Standard Names.     (line  659)
  * le:                                    Comparisons.        (line   76)
! * le and attributes:                     Expressions.        (line   85)
! * LE_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
  * leaf functions:                        Leaf Functions.     (line    6)
! * leaf_function_p:                       Standard Names.     (line 1423)
! * LEAF_REG_REMAP:                        Leaf Functions.     (line   39)
! * LEAF_REGISTERS:                        Leaf Functions.     (line   25)
! * left rotate:                           Arithmetic.         (line  194)
! * left shift:                            Arithmetic.         (line  172)
! * LEGITIMATE_PIC_OPERAND_P:              PIC.                (line   32)
! * LEGITIMIZE_RELOAD_ADDRESS:             Addressing Modes.   (line  153)
! * length:                                GTY Options.        (line   50)
  * less than:                             Comparisons.        (line   68)
  * less than or equal:                    Comparisons.        (line   76)
  * leu:                                   Comparisons.        (line   76)
! * leu and attributes:                    Expressions.        (line   85)
! * lfloorMN2:                             Standard Names.     (line  861)
  * LIB2FUNCS_EXTRA:                       Target Fragment.    (line   11)
- * LIB_SPEC:                              Driver.             (line  108)
  * LIBCALL_VALUE:                         Scalar Return.      (line   56)
  * libgcc.a:                              Library Calls.      (line    6)
  * LIBGCC2_CFLAGS:                        Target Fragment.    (line    8)
! * LIBGCC2_GNU_PREFIX:                    Type Layout.        (line  103)
! * LIBGCC2_UNWIND_ATTRIBUTE:              Misc.               (line 1096)
! * LIBGCC_SPEC:                           Driver.             (line  116)
  * library subroutine names:              Library Calls.      (line    6)
! * LIBRARY_PATH_ENV:                      Misc.               (line  512)
! * LIMIT_RELOAD_CLASS:                    Register Classes.   (line  300)
! * LINK_COMMAND_SPEC:                     Driver.             (line  241)
! * LINK_EH_SPEC:                          Driver.             (line  143)
! * LINK_GCC_C_SEQUENCE_SPEC:              Driver.             (line  233)
! * LINK_LIBGCC_SPECIAL_1:                 Driver.             (line  228)
! * LINK_SPEC:                             Driver.             (line  101)
  * list:                                  Containers.         (line    6)
  * Liveness representation:               Liveness information.
                                                               (line    6)
! * lo_sum:                                Arithmetic.         (line   24)
! * load address instruction:              Simple Constraints. (line  164)
! * LOAD_EXTEND_OP:                        Misc.               (line   60)
! * load_multiple instruction pattern:     Standard Names.     (line  137)
! * Local Register Allocator (LRA):        RTL passes.         (line  188)
! * LOCAL_ALIGNMENT:                       Storage Layout.     (line  258)
  * LOCAL_CLASS_P:                         Classes.            (line   73)
! * LOCAL_DECL_ALIGNMENT:                  Storage Layout.     (line  295)
! * LOCAL_INCLUDE_DIR:                     Driver.             (line  317)
! * LOCAL_LABEL_PREFIX:                    Instruction Output. (line  153)
! * LOCAL_REGNO:                           Register Basics.    (line  101)
! * log10M2 instruction pattern:           Standard Names.     (line  763)
! * log1pM2 instruction pattern:           Standard Names.     (line  753)
! * log2M2 instruction pattern:            Standard Names.     (line  770)
! * LOG_LINKS:                             Insns.              (line  318)
! * logbM2 instruction pattern:            Standard Names.     (line  777)
  * Logical Operators:                     Logical Operators.  (line    6)
! * logical-and, bitwise:                  Arithmetic.         (line  157)
! * LOGICAL_OP_NON_SHORT_CIRCUIT:          Costs.              (line  274)
! * logM2 instruction pattern:             Standard Names.     (line  746)
! * LONG_ACCUM_TYPE_SIZE:                  Type Layout.        (line   93)
! * LONG_DOUBLE_TYPE_SIZE:                 Type Layout.        (line   58)
! * LONG_FRACT_TYPE_SIZE:                  Type Layout.        (line   73)
! * LONG_LONG_ACCUM_TYPE_SIZE:             Type Layout.        (line   98)
! * LONG_LONG_FRACT_TYPE_SIZE:             Type Layout.        (line   78)
! * LONG_LONG_TYPE_SIZE:                   Type Layout.        (line   33)
! * LONG_TYPE_SIZE:                        Type Layout.        (line   22)
  * longjmp and automatic variables:       Interface.          (line   52)
  * Loop analysis:                         Loop representation.
                                                               (line    6)
  * Loop manipulation:                     Loop manipulation.  (line    6)
--- 49133,49221 ----
  * label_ref and /v:                      Flags.              (line   65)
  * label_ref, RTL sharing:                Sharing.            (line   35)
  * LABEL_REF_NONLOCAL_P:                  Flags.              (line   65)
  * language-dependent trees:              Language-dependent trees.
                                                               (line    6)
  * language-independent intermediate representation: Parsing pass.
!                                                              (line   13)
! * lang_hooks.gimplify_expr:              Gimplification pass.
!                                                              (line   18)
! * lang_hooks.parse_file:                 Parsing pass.       (line    6)
  * large return values:                   Aggregate Return.   (line    6)
! * LAST_STACK_REG:                        Stack Registers.    (line   30)
  * LAST_VIRTUAL_REGISTER:                 Regs and Memory.    (line   51)
! * lceilMN2:                              Standard Names.     (line  860)
  * LCSSA:                                 LCSSA.              (line    6)
+ * LDD_SUFFIX:                            Macros for Initialization.
+                                                              (line  121)
+ * ldexpM3 instruction pattern:           Standard Names.     (line  653)
  * LD_FINI_SWITCH:                        Macros for Initialization.
!                                                              (line   28)
  * LD_INIT_SWITCH:                        Macros for Initialization.
!                                                              (line   24)
  * le:                                    Comparisons.        (line   76)
! * le and attributes:                     Expressions.        (line   83)
  * leaf functions:                        Leaf Functions.     (line    6)
! * leaf_function_p:                       Standard Names.     (line 1416)
! * LEAF_REGISTERS:                        Leaf Functions.     (line   23)
! * LEAF_REG_REMAP:                        Leaf Functions.     (line   37)
! * left rotate:                           Arithmetic.         (line  195)
! * left shift:                            Arithmetic.         (line  173)
! * LEGITIMATE_PIC_OPERAND_P:              PIC.                (line   31)
! * LEGITIMIZE_RELOAD_ADDRESS:             Addressing Modes.   (line  150)
! * length:                                GTY Options.        (line   47)
  * less than:                             Comparisons.        (line   68)
  * less than or equal:                    Comparisons.        (line   76)
  * leu:                                   Comparisons.        (line   76)
! * leu and attributes:                    Expressions.        (line   83)
! * LE_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
! * lfloorMN2:                             Standard Names.     (line  855)
  * LIB2FUNCS_EXTRA:                       Target Fragment.    (line   11)
  * LIBCALL_VALUE:                         Scalar Return.      (line   56)
  * libgcc.a:                              Library Calls.      (line    6)
  * LIBGCC2_CFLAGS:                        Target Fragment.    (line    8)
! * LIBGCC2_GNU_PREFIX:                    Type Layout.        (line  102)
! * LIBGCC2_UNWIND_ATTRIBUTE:              Misc.               (line 1090)
! * LIBGCC_SPEC:                           Driver.             (line  115)
  * library subroutine names:              Library Calls.      (line    6)
! * LIBRARY_PATH_ENV:                      Misc.               (line  510)
! * LIB_SPEC:                              Driver.             (line  107)
! * LIMIT_RELOAD_CLASS:                    Register Classes.   (line  296)
! * LINK_COMMAND_SPEC:                     Driver.             (line  240)
! * LINK_EH_SPEC:                          Driver.             (line  142)
! * LINK_GCC_C_SEQUENCE_SPEC:              Driver.             (line  232)
! * LINK_LIBGCC_SPECIAL_1:                 Driver.             (line  227)
! * LINK_SPEC:                             Driver.             (line  100)
  * list:                                  Containers.         (line    6)
  * Liveness representation:               Liveness information.
                                                               (line    6)
! * load address instruction:              Simple Constraints. (line  162)
! * LOAD_EXTEND_OP:                        Misc.               (line   59)
! * load_multiple instruction pattern:     Standard Names.     (line  136)
! * Local Register Allocator (LRA):        RTL passes.         (line  187)
! * LOCAL_ALIGNMENT:                       Storage Layout.     (line  254)
  * LOCAL_CLASS_P:                         Classes.            (line   73)
! * LOCAL_DECL_ALIGNMENT:                  Storage Layout.     (line  291)
! * LOCAL_INCLUDE_DIR:                     Driver.             (line  316)
! * LOCAL_LABEL_PREFIX:                    Instruction Output. (line  151)
! * LOCAL_REGNO:                           Register Basics.    (line  100)
! * log10M2 instruction pattern:           Standard Names.     (line  757)
! * log1pM2 instruction pattern:           Standard Names.     (line  747)
! * log2M2 instruction pattern:            Standard Names.     (line  764)
! * logbM2 instruction pattern:            Standard Names.     (line  771)
  * Logical Operators:                     Logical Operators.  (line    6)
! * logical-and, bitwise:                  Arithmetic.         (line  158)
! * LOGICAL_OP_NON_SHORT_CIRCUIT:          Costs.              (line  273)
! * logM2 instruction pattern:             Standard Names.     (line  740)
! * LOG_LINKS:                             Insns.              (line  314)
  * longjmp and automatic variables:       Interface.          (line   52)
+ * LONG_ACCUM_TYPE_SIZE:                  Type Layout.        (line   92)
+ * LONG_DOUBLE_TYPE_SIZE:                 Type Layout.        (line   57)
+ * LONG_FRACT_TYPE_SIZE:                  Type Layout.        (line   72)
+ * LONG_LONG_ACCUM_TYPE_SIZE:             Type Layout.        (line   97)
+ * LONG_LONG_FRACT_TYPE_SIZE:             Type Layout.        (line   77)
+ * LONG_LONG_TYPE_SIZE:                   Type Layout.        (line   32)
+ * LONG_TYPE_SIZE:                        Type Layout.        (line   21)
  * Loop analysis:                         Loop representation.
                                                               (line    6)
  * Loop manipulation:                     Loop manipulation.  (line    6)
*************** Concept Index
*** 49652,49679 ****
  * Loop representation:                   Loop representation.
                                                               (line    6)
  * Loop-closed SSA form:                  LCSSA.              (line    6)
! * LOOP_ALIGN:                            Alignment Output.   (line   41)
  * LOOP_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
- * looping instruction patterns:          Looping Patterns.   (line    6)
  * lowering, language-dependent intermediate representation: Parsing pass.
!                                                              (line   14)
! * lrintMN2:                              Standard Names.     (line  851)
! * lroundMN2:                             Standard Names.     (line  856)
  * LSHIFT_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * lshiftrt:                              Arithmetic.         (line  189)
! * lshiftrt and attributes:               Expressions.        (line   85)
! * lshrM3 instruction pattern:            Standard Names.     (line  597)
  * lt:                                    Comparisons.        (line   68)
! * lt and attributes:                     Expressions.        (line   85)
! * LT_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
  * LTGT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * lto:                                   LTO.                (line    6)
  * ltrans:                                LTO.                (line    6)
  * ltu:                                   Comparisons.        (line   68)
  * m in constraint:                       Simple Constraints. (line   17)
  * machine attributes:                    Target Attributes.  (line    6)
  * machine description macros:            Target Macros.      (line    6)
--- 49223,49251 ----
  * Loop representation:                   Loop representation.
                                                               (line    6)
  * Loop-closed SSA form:                  LCSSA.              (line    6)
! * looping instruction patterns:          Looping Patterns.   (line    6)
! * LOOP_ALIGN:                            Alignment Output.   (line   40)
  * LOOP_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * lowering, language-dependent intermediate representation: Parsing pass.
!                                                              (line   13)
! * lo_sum:                                Arithmetic.         (line   25)
! * lrintMN2:                              Standard Names.     (line  845)
! * lroundMN2:                             Standard Names.     (line  850)
! * lshiftrt:                              Arithmetic.         (line  190)
! * lshiftrt and attributes:               Expressions.        (line   83)
  * LSHIFT_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * lshrM3 instruction pattern:            Standard Names.     (line  591)
  * lt:                                    Comparisons.        (line   68)
! * lt and attributes:                     Expressions.        (line   83)
  * LTGT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * lto:                                   LTO.                (line    6)
  * ltrans:                                LTO.                (line    6)
  * ltu:                                   Comparisons.        (line   68)
+ * LT_EXPR:                               Unary and Binary Expressions.
+                                                              (line    6)
  * m in constraint:                       Simple Constraints. (line   17)
  * machine attributes:                    Target Attributes.  (line    6)
  * machine description macros:            Target Macros.      (line    6)
*************** Concept Index
*** 49686,49844 ****
                                                               (line    6)
  * machine_mode:                          Machine Modes.      (line    6)
  * macros, target description:            Target Macros.      (line    6)
! * maddMN4 instruction pattern:           Standard Names.     (line  518)
! * MAKE_DECL_ONE_ONLY:                    Label Output.       (line  285)
! * make_safe_from:                        Expander Definitions.
!                                                              (line  151)
  * makefile fragment:                     Fragments.          (line    6)
  * makefile targets:                      Makefile.           (line    6)
! * MALLOC_ABI_ALIGNMENT:                  Storage Layout.     (line  175)
  * Manipulating GIMPLE statements:        Manipulating GIMPLE statements.
                                                               (line    6)
  * marking roots:                         GGC Roots.          (line    6)
  * MASK_RETURN_ADDR:                      Exception Region Output.
!                                                              (line   36)
! * maskloadMN instruction pattern:        Standard Names.     (line  246)
! * maskstoreMN instruction pattern:       Standard Names.     (line  253)
  * Match and Simplify:                    Match and Simplify. (line    6)
! * match_dup <1>:                         define_peephole2.   (line   28)
  * match_dup:                             RTL Template.       (line   73)
  * match_dup and attributes:              Insn Lengths.       (line   16)
- * match_op_dup:                          RTL Template.       (line  163)
  * match_operand:                         RTL Template.       (line   16)
  * match_operand and attributes:          Expressions.        (line   55)
  * match_operator:                        RTL Template.       (line   95)
! * match_par_dup:                         RTL Template.       (line  219)
  * match_parallel:                        RTL Template.       (line  172)
! * match_scratch <1>:                     define_peephole2.   (line   28)
  * match_scratch:                         RTL Template.       (line   58)
  * match_test and attributes:             Expressions.        (line   64)
- * matching constraint:                   Simple Constraints. (line  142)
- * matching operands:                     Output Template.    (line   49)
  * math library:                          Soft float library routines.
                                                               (line    6)
  * math, in RTL:                          Arithmetic.         (line    6)
- * MATH_LIBRARY:                          Misc.               (line  505)
  * matherr:                               Library Calls.      (line   59)
! * MAX_BITS_PER_WORD:                     Storage Layout.     (line   55)
! * MAX_BITSIZE_MODE_ANY_INT:              Machine Modes.      (line  359)
! * MAX_BITSIZE_MODE_ANY_MODE:             Machine Modes.      (line  365)
! * MAX_CONDITIONAL_EXECUTE:               Misc.               (line  527)
! * MAX_FIXED_MODE_SIZE:                   Storage Layout.     (line  441)
! * MAX_MOVE_MAX:                          Misc.               (line  106)
! * MAX_OFILE_ALIGNMENT:                   Storage Layout.     (line  212)
! * MAX_REGS_PER_ADDRESS:                  Addressing Modes.   (line   43)
! * MAX_STACK_ALIGNMENT:                   Storage Layout.     (line  205)
! * maxM3 instruction pattern:             Standard Names.     (line  367)
! * may_trap_p, tree_could_trap_p:         Edges.              (line  115)
! * maybe_undef:                           GTY Options.        (line  137)
  * mcount:                                Profiling.          (line   12)
! * MD_EXEC_PREFIX:                        Driver.             (line  272)
! * MD_FALLBACK_FRAME_STATE_FOR:           Exception Handling. (line   94)
! * MD_HANDLE_UNWABI:                      Exception Handling. (line  114)
! * MD_STARTFILE_PREFIX:                   Driver.             (line  300)
! * MD_STARTFILE_PREFIX_1:                 Driver.             (line  305)
! * mem:                                   Regs and Memory.    (line  374)
  * mem and /c:                            Flags.              (line   81)
  * mem and /f:                            Flags.              (line   85)
  * mem and /j:                            Flags.              (line   70)
  * mem and /u:                            Flags.              (line  134)
  * mem and /v:                            Flags.              (line   76)
  * mem, RTL sharing:                      Sharing.            (line   40)
! * MEM_ADDR_SPACE:                        Special Accessors.  (line   49)
  * MEM_ALIAS_SET:                         Special Accessors.  (line    9)
! * MEM_ALIGN:                             Special Accessors.  (line   46)
! * MEM_EXPR:                              Special Accessors.  (line   20)
  * MEM_KEEP_ALIAS_SET_P:                  Flags.              (line   70)
  * MEM_NOTRAP_P:                          Flags.              (line   81)
! * MEM_OFFSET:                            Special Accessors.  (line   32)
! * MEM_OFFSET_KNOWN_P:                    Special Accessors.  (line   28)
  * MEM_POINTER:                           Flags.              (line   85)
  * MEM_READONLY_P:                        Flags.              (line  134)
  * MEM_REF:                               Storage References. (line    6)
! * mem_signal_fenceMODE instruction pattern: Standard Names.  (line 2072)
! * MEM_SIZE:                              Special Accessors.  (line   40)
! * MEM_SIZE_KNOWN_P:                      Special Accessors.  (line   36)
! * mem_thread_fenceMODE instruction pattern: Standard Names.  (line 2064)
  * MEM_VOLATILE_P:                        Flags.              (line   76)
- * memory model:                          Memory model.       (line    6)
- * memory reference, nonoffsettable:      Simple Constraints. (line  256)
- * memory references in constraints:      Simple Constraints. (line   17)
- * memory_barrier instruction pattern:    Standard Names.     (line 1813)
- * MEMORY_MOVE_COST:                      Costs.              (line   54)
- * memory_operand:                        Machine-Independent Predicates.
-                                                              (line   58)
  * METHOD_TYPE:                           Types.              (line    6)
! * MIN_UNITS_PER_WORD:                    Storage Layout.     (line   65)
! * MINIMUM_ALIGNMENT:                     Storage Layout.     (line  308)
! * MINIMUM_ATOMIC_ALIGNMENT:              Storage Layout.     (line  183)
! * minM3 instruction pattern:             Standard Names.     (line  367)
! * minus:                                 Arithmetic.         (line   36)
! * minus and attributes:                  Expressions.        (line   85)
  * minus, canonicalization of:            Insn Canonicalizations.
                                                               (line   27)
  * MINUS_EXPR:                            Unary and Binary Expressions.
                                                               (line    6)
  * MIPS coprocessor-definition macros:    MIPS Coprocessors.  (line    6)
  * miscellaneous register hooks:          Miscellaneous Register Hooks.
                                                               (line    6)
  * mnemonic attribute:                    Mnemonic Attribute. (line    6)
! * mod:                                   Arithmetic.         (line  135)
! * mod and attributes:                    Expressions.        (line   85)
! * mode classes:                          Machine Modes.      (line  226)
  * mode iterators in .md files:           Mode Iterators.     (line    6)
  * mode switching:                        Mode Switching.     (line    6)
! * MODE_ACCUM:                            Machine Modes.      (line  256)
! * MODE_BASE_REG_CLASS:                   Register Classes.   (line  119)
! * MODE_BASE_REG_REG_CLASS:               Register Classes.   (line  125)
  * MODE_CC <1>:                           MODE_CC Condition Codes.
                                                               (line    6)
! * MODE_CC:                               Machine Modes.      (line  275)
! * MODE_CODE_BASE_REG_CLASS:              Register Classes.   (line  133)
! * MODE_COMPLEX_FLOAT:                    Machine Modes.      (line  267)
! * MODE_COMPLEX_INT:                      Machine Modes.      (line  264)
! * MODE_DECIMAL_FLOAT:                    Machine Modes.      (line  244)
! * MODE_FLOAT:                            Machine Modes.      (line  240)
! * MODE_FRACT:                            Machine Modes.      (line  248)
! * MODE_FUNCTION:                         Machine Modes.      (line  271)
! * MODE_INT:                              Machine Modes.      (line  232)
! * MODE_PARTIAL_INT:                      Machine Modes.      (line  236)
! * MODE_POINTER_BOUNDS:                   Machine Modes.      (line  280)
! * MODE_RANDOM:                           Machine Modes.      (line  285)
! * MODE_UACCUM:                           Machine Modes.      (line  260)
! * MODE_UFRACT:                           Machine Modes.      (line  252)
! * MODES_TIEABLE_P:                       Values in Registers.
!                                                              (line  129)
  * modifiers in constraints:              Modifiers.          (line    6)
  * MODIFY_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * MODIFY_JNI_METHOD_CALL:                Misc.               (line  878)
! * modM3 instruction pattern:             Standard Names.     (line  305)
! * modulo scheduling:                     RTL passes.         (line  124)
! * MOVE_MAX:                              Misc.               (line  101)
! * MOVE_MAX_PIECES:                       Costs.              (line  200)
! * MOVE_RATIO:                            Costs.              (line  149)
  * movM instruction pattern:              Standard Names.     (line   11)
! * movmemM instruction pattern:           Standard Names.     (line  965)
! * movmisalignM instruction pattern:      Standard Names.     (line  126)
! * movMODEcc instruction pattern:         Standard Names.     (line 1259)
! * movstr instruction pattern:            Standard Names.     (line 1000)
! * movstrictM instruction pattern:        Standard Names.     (line  120)
! * msubMN4 instruction pattern:           Standard Names.     (line  541)
! * mulhisi3 instruction pattern:          Standard Names.     (line  494)
! * mulM3 instruction pattern:             Standard Names.     (line  305)
! * mulqihi3 instruction pattern:          Standard Names.     (line  498)
! * mulsidi3 instruction pattern:          Standard Names.     (line  498)
! * mult:                                  Arithmetic.         (line   92)
! * mult and attributes:                   Expressions.        (line   85)
  * mult, canonicalization of:             Insn Canonicalizations.
                                                               (line   27)
! * MULT_EXPR:                             Unary and Binary Expressions.
!                                                              (line    6)
! * MULT_HIGHPART_EXPR:                    Unary and Binary Expressions.
!                                                              (line    6)
  * MULTIARCH_DIRNAME:                     Target Fragment.    (line  170)
! * MULTILIB_DEFAULTS:                     Driver.             (line  257)
  * MULTILIB_DIRNAMES:                     Target Fragment.    (line   44)
  * MULTILIB_EXCEPTIONS:                   Target Fragment.    (line   70)
  * MULTILIB_EXTRA_OPTS:                   Target Fragment.    (line  132)
--- 49258,49414 ----
                                                               (line    6)
  * machine_mode:                          Machine Modes.      (line    6)
  * macros, target description:            Target Macros.      (line    6)
! * maddMN4 instruction pattern:           Standard Names.     (line  512)
  * makefile fragment:                     Fragments.          (line    6)
  * makefile targets:                      Makefile.           (line    6)
! * MAKE_DECL_ONE_ONLY:                    Label Output.       (line  281)
! * make_safe_from:                        Expander Definitions.
!                                                              (line  151)
! * MALLOC_ABI_ALIGNMENT:                  Storage Layout.     (line  173)
  * Manipulating GIMPLE statements:        Manipulating GIMPLE statements.
                                                               (line    6)
  * marking roots:                         GGC Roots.          (line    6)
+ * maskloadMN instruction pattern:        Standard Names.     (line  244)
+ * maskstoreMN instruction pattern:       Standard Names.     (line  251)
  * MASK_RETURN_ADDR:                      Exception Region Output.
!                                                              (line   35)
  * Match and Simplify:                    Match and Simplify. (line    6)
! * matching constraint:                   Simple Constraints. (line  140)
! * matching operands:                     Output Template.    (line   49)
  * match_dup:                             RTL Template.       (line   73)
+ * match_dup <1>:                         define_peephole2.   (line   28)
  * match_dup and attributes:              Insn Lengths.       (line   16)
  * match_operand:                         RTL Template.       (line   16)
  * match_operand and attributes:          Expressions.        (line   55)
  * match_operator:                        RTL Template.       (line   95)
! * match_op_dup:                          RTL Template.       (line  163)
  * match_parallel:                        RTL Template.       (line  172)
! * match_par_dup:                         RTL Template.       (line  219)
  * match_scratch:                         RTL Template.       (line   58)
+ * match_scratch <1>:                     define_peephole2.   (line   28)
  * match_test and attributes:             Expressions.        (line   64)
  * math library:                          Soft float library routines.
                                                               (line    6)
  * math, in RTL:                          Arithmetic.         (line    6)
  * matherr:                               Library Calls.      (line   59)
! * MATH_LIBRARY:                          Misc.               (line  503)
! * maxM3 instruction pattern:             Standard Names.     (line  363)
! * MAX_BITSIZE_MODE_ANY_INT:              Machine Modes.      (line  358)
! * MAX_BITSIZE_MODE_ANY_MODE:             Machine Modes.      (line  364)
! * MAX_BITS_PER_WORD:                     Storage Layout.     (line   54)
! * MAX_CONDITIONAL_EXECUTE:               Misc.               (line  525)
! * MAX_FIXED_MODE_SIZE:                   Storage Layout.     (line  436)
! * MAX_MOVE_MAX:                          Misc.               (line  105)
! * MAX_OFILE_ALIGNMENT:                   Storage Layout.     (line  208)
! * MAX_REGS_PER_ADDRESS:                  Addressing Modes.   (line   42)
! * MAX_STACK_ALIGNMENT:                   Storage Layout.     (line  202)
! * maybe_undef:                           GTY Options.        (line  139)
! * may_trap_p, tree_could_trap_p:         Edges.              (line  114)
  * mcount:                                Profiling.          (line   12)
! * MD_EXEC_PREFIX:                        Driver.             (line  271)
! * MD_FALLBACK_FRAME_STATE_FOR:           Exception Handling. (line   93)
! * MD_HANDLE_UNWABI:                      Exception Handling. (line  112)
! * MD_STARTFILE_PREFIX:                   Driver.             (line  299)
! * MD_STARTFILE_PREFIX_1:                 Driver.             (line  304)
! * mem:                                   Regs and Memory.    (line  370)
  * mem and /c:                            Flags.              (line   81)
  * mem and /f:                            Flags.              (line   85)
  * mem and /j:                            Flags.              (line   70)
  * mem and /u:                            Flags.              (line  134)
  * mem and /v:                            Flags.              (line   76)
  * mem, RTL sharing:                      Sharing.            (line   40)
! * memory model:                          Memory model.       (line    6)
! * memory reference, nonoffsettable:      Simple Constraints. (line  254)
! * memory references in constraints:      Simple Constraints. (line   17)
! * memory_barrier instruction pattern:    Standard Names.     (line 1802)
! * MEMORY_MOVE_COST:                      Costs.              (line   53)
! * memory_operand:                        Machine-Independent Predicates.
!                                                              (line   57)
! * MEM_ADDR_SPACE:                        Special Accessors.  (line   48)
  * MEM_ALIAS_SET:                         Special Accessors.  (line    9)
! * MEM_ALIGN:                             Special Accessors.  (line   45)
! * MEM_EXPR:                              Special Accessors.  (line   19)
  * MEM_KEEP_ALIAS_SET_P:                  Flags.              (line   70)
  * MEM_NOTRAP_P:                          Flags.              (line   81)
! * MEM_OFFSET:                            Special Accessors.  (line   31)
! * MEM_OFFSET_KNOWN_P:                    Special Accessors.  (line   27)
  * MEM_POINTER:                           Flags.              (line   85)
  * MEM_READONLY_P:                        Flags.              (line  134)
  * MEM_REF:                               Storage References. (line    6)
! * mem_signal_fenceMODE instruction pattern: Standard Names.  (line 2061)
! * MEM_SIZE:                              Special Accessors.  (line   39)
! * MEM_SIZE_KNOWN_P:                      Special Accessors.  (line   35)
! * mem_thread_fenceMODE instruction pattern: Standard Names.  (line 2053)
  * MEM_VOLATILE_P:                        Flags.              (line   76)
  * METHOD_TYPE:                           Types.              (line    6)
! * MINIMUM_ALIGNMENT:                     Storage Layout.     (line  304)
! * MINIMUM_ATOMIC_ALIGNMENT:              Storage Layout.     (line  181)
! * minM3 instruction pattern:             Standard Names.     (line  363)
! * minus:                                 Arithmetic.         (line   38)
! * minus and attributes:                  Expressions.        (line   83)
  * minus, canonicalization of:            Insn Canonicalizations.
                                                               (line   27)
  * MINUS_EXPR:                            Unary and Binary Expressions.
                                                               (line    6)
+ * MIN_UNITS_PER_WORD:                    Storage Layout.     (line   64)
  * MIPS coprocessor-definition macros:    MIPS Coprocessors.  (line    6)
  * miscellaneous register hooks:          Miscellaneous Register Hooks.
                                                               (line    6)
  * mnemonic attribute:                    Mnemonic Attribute. (line    6)
! * mod:                                   Arithmetic.         (line  136)
! * mod and attributes:                    Expressions.        (line   83)
! * mode classes:                          Machine Modes.      (line  225)
  * mode iterators in .md files:           Mode Iterators.     (line    6)
  * mode switching:                        Mode Switching.     (line    6)
! * MODES_TIEABLE_P:                       Values in Registers.
!                                                              (line  127)
! * MODE_ACCUM:                            Machine Modes.      (line  255)
! * MODE_BASE_REG_CLASS:                   Register Classes.   (line  116)
! * MODE_BASE_REG_REG_CLASS:               Register Classes.   (line  122)
! * MODE_CC:                               Machine Modes.      (line  274)
  * MODE_CC <1>:                           MODE_CC Condition Codes.
                                                               (line    6)
! * MODE_CODE_BASE_REG_CLASS:              Register Classes.   (line  129)
! * MODE_COMPLEX_FLOAT:                    Machine Modes.      (line  266)
! * MODE_COMPLEX_INT:                      Machine Modes.      (line  263)
! * MODE_DECIMAL_FLOAT:                    Machine Modes.      (line  243)
! * MODE_FLOAT:                            Machine Modes.      (line  239)
! * MODE_FRACT:                            Machine Modes.      (line  247)
! * MODE_FUNCTION:                         Machine Modes.      (line  270)
! * MODE_INT:                              Machine Modes.      (line  231)
! * MODE_PARTIAL_INT:                      Machine Modes.      (line  235)
! * MODE_POINTER_BOUNDS:                   Machine Modes.      (line  279)
! * MODE_RANDOM:                           Machine Modes.      (line  284)
! * MODE_UACCUM:                           Machine Modes.      (line  259)
! * MODE_UFRACT:                           Machine Modes.      (line  251)
  * modifiers in constraints:              Modifiers.          (line    6)
  * MODIFY_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * MODIFY_JNI_METHOD_CALL:                Misc.               (line  874)
! * modM3 instruction pattern:             Standard Names.     (line  301)
! * modulo scheduling:                     RTL passes.         (line  123)
! * MOVE_MAX:                              Misc.               (line  100)
! * MOVE_MAX_PIECES:                       Costs.              (line  199)
! * MOVE_RATIO:                            Costs.              (line  148)
  * movM instruction pattern:              Standard Names.     (line   11)
! * movmemM instruction pattern:           Standard Names.     (line  959)
! * movmisalignM instruction pattern:      Standard Names.     (line  125)
! * movMODEcc instruction pattern:         Standard Names.     (line 1253)
! * movstr instruction pattern:            Standard Names.     (line  994)
! * movstrictM instruction pattern:        Standard Names.     (line  119)
! * msubMN4 instruction pattern:           Standard Names.     (line  535)
! * mulhisi3 instruction pattern:          Standard Names.     (line  488)
! * mulM3 instruction pattern:             Standard Names.     (line  301)
! * mulqihi3 instruction pattern:          Standard Names.     (line  492)
! * mulsidi3 instruction pattern:          Standard Names.     (line  492)
! * mult:                                  Arithmetic.         (line   93)
! * mult and attributes:                   Expressions.        (line   83)
  * mult, canonicalization of:             Insn Canonicalizations.
                                                               (line   27)
! * mult, canonicalization of <1>:         Insn Canonicalizations.
!                                                              (line   91)
  * MULTIARCH_DIRNAME:                     Target Fragment.    (line  170)
! * MULTILIB_DEFAULTS:                     Driver.             (line  256)
  * MULTILIB_DIRNAMES:                     Target Fragment.    (line   44)
  * MULTILIB_EXCEPTIONS:                   Target Fragment.    (line   70)
  * MULTILIB_EXTRA_OPTS:                   Target Fragment.    (line  132)
*************** Concept Index
*** 49848,49948 ****
  * MULTILIB_REQUIRED:                     Target Fragment.    (line   82)
  * MULTILIB_REUSE:                        Target Fragment.    (line  103)
  * multiple alternative constraints:      Multi-Alternative.  (line    6)
! * MULTIPLE_SYMBOL_SPACES:                Misc.               (line  484)
! * multiplication:                        Arithmetic.         (line   92)
! * multiplication with signed saturation: Arithmetic.         (line   92)
! * multiplication with unsigned saturation: Arithmetic.       (line   92)
! * mulvM4 instruction pattern:            Standard Names.     (line  321)
! * n in constraint:                       Simple Constraints. (line   75)
! * N_REG_CLASSES:                         Register Classes.   (line   83)
  * name:                                  Identifiers.        (line    6)
  * named address spaces:                  Named Address Spaces.
                                                               (line    6)
  * named patterns and conditions:         Patterns.           (line   49)
  * names, pattern:                        Standard Names.     (line    6)
  * namespace, scope:                      Namespaces.         (line    6)
- * NAMESPACE_DECL <1>:                    Namespaces.         (line    6)
  * NAMESPACE_DECL:                        Declarations.       (line    6)
! * NATIVE_SYSTEM_HEADER_COMPONENT:        Driver.             (line  327)
  * ne:                                    Comparisons.        (line   56)
! * ne and attributes:                     Expressions.        (line   85)
! * NE_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
! * nearbyintM2 instruction pattern:       Standard Names.     (line  835)
! * neg:                                   Arithmetic.         (line   81)
! * neg and attributes:                    Expressions.        (line   85)
  * neg, canonicalization of:              Insn Canonicalizations.
                                                               (line   27)
  * NEGATE_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * negation:                              Arithmetic.         (line   81)
! * negation with signed saturation:       Arithmetic.         (line   81)
! * negation with unsigned saturation:     Arithmetic.         (line   81)
! * negM2 instruction pattern:             Standard Names.     (line  609)
! * negMODEcc instruction pattern:         Standard Names.     (line 1279)
! * negvM3 instruction pattern:            Standard Names.     (line  612)
  * nested functions, trampolines for:     Trampolines.        (line    6)
! * nested_ptr:                            GTY Options.        (line  144)
  * next_bb, prev_bb, FOR_EACH_BB, FOR_ALL_BB: Basic Blocks.   (line   25)
  * NEXT_INSN:                             Insns.              (line   30)
! * NEXT_OBJC_RUNTIME:                     Library Calls.      (line   83)
  * nil:                                   RTL Objects.        (line   73)
  * NM_FLAGS:                              Macros for Initialization.
!                                                              (line  111)
! * NO_DBX_BNSYM_ENSYM:                    DBX Hooks.          (line   26)
! * NO_DBX_FUNCTION_END:                   DBX Hooks.          (line   20)
! * NO_DBX_GCC_MARKER:                     File Names and DBX. (line   28)
! * NO_DBX_MAIN_SOURCE_DIRECTORY:          File Names and DBX. (line   23)
! * NO_DOLLAR_IN_LABEL:                    Label Output.       (line   67)
! * NO_DOT_IN_LABEL:                       Label Output.       (line   73)
! * NO_FUNCTION_CSE:                       Costs.              (line  269)
! * NO_IMPLICIT_EXTERN_C:                  Misc.               (line  382)
! * NO_PROFILE_COUNTERS:                   Profiling.          (line   28)
! * NO_REGS:                               Register Classes.   (line   17)
! * NON_LVALUE_EXPR:                       Unary and Binary Expressions.
!                                                              (line    6)
  * nondeterministic finite state automaton: Processor pipeline description.
!                                                              (line  305)
  * nonimmediate_operand:                  Machine-Independent Predicates.
!                                                              (line  101)
! * nonlocal goto handler:                 Edges.              (line  172)
! * nonlocal_goto instruction pattern:     Standard Names.     (line 1645)
  * nonlocal_goto_receiver instruction pattern: Standard Names.
!                                                              (line 1662)
  * nonmemory_operand:                     Machine-Independent Predicates.
!                                                              (line   97)
! * nonoffsettable memory reference:       Simple Constraints. (line  256)
! * nop instruction pattern:               Standard Names.     (line 1456)
  * NOP_EXPR:                              Unary and Binary Expressions.
                                                               (line    6)
  * normal predicates:                     Predicates.         (line   31)
! * not:                                   Arithmetic.         (line  153)
  * not and attributes:                    Expressions.        (line   50)
  * not equal:                             Comparisons.        (line   56)
  * not, canonicalization of:              Insn Canonicalizations.
                                                               (line   27)
! * note:                                  Insns.              (line  185)
  * note and /i:                           Flags.              (line   59)
  * note and /v:                           Flags.              (line   44)
  * NOTE_INSN_BASIC_BLOCK:                 Basic Blocks.       (line   50)
! * NOTE_INSN_BLOCK_BEG:                   Insns.              (line  210)
! * NOTE_INSN_BLOCK_END:                   Insns.              (line  210)
! * NOTE_INSN_DELETED:                     Insns.              (line  200)
! * NOTE_INSN_DELETED_LABEL:               Insns.              (line  205)
! * NOTE_INSN_EH_REGION_BEG:               Insns.              (line  216)
! * NOTE_INSN_EH_REGION_END:               Insns.              (line  216)
! * NOTE_INSN_FUNCTION_BEG:                Insns.              (line  223)
! * NOTE_INSN_VAR_LOCATION:                Insns.              (line  227)
! * NOTE_LINE_NUMBER:                      Insns.              (line  185)
! * NOTE_SOURCE_FILE:                      Insns.              (line  185)
! * NOTE_VAR_LOCATION:                     Insns.              (line  227)
  * NOTICE_UPDATE_CC:                      CC0 Condition Codes.
!                                                              (line   31)
! * notMODEcc instruction pattern:         Standard Names.     (line 1286)
! * NUM_MACHINE_MODES:                     Machine Modes.      (line  298)
! * NUM_MODES_FOR_MODE_SWITCHING:          Mode Switching.     (line   31)
  * Number of iterations analysis:         Number of iterations.
                                                               (line    6)
  * o in constraint:                       Simple Constraints. (line   23)
  * OACC_CACHE:                            OpenACC.            (line    6)
  * OACC_DATA:                             OpenACC.            (line    6)
--- 49418,49523 ----
  * MULTILIB_REQUIRED:                     Target Fragment.    (line   82)
  * MULTILIB_REUSE:                        Target Fragment.    (line  103)
  * multiple alternative constraints:      Multi-Alternative.  (line    6)
! * MULTIPLE_SYMBOL_SPACES:                Misc.               (line  482)
! * multiplication:                        Arithmetic.         (line   93)
! * multiplication with signed saturation: Arithmetic.         (line   93)
! * multiplication with unsigned saturation: Arithmetic.       (line   93)
! * MULT_EXPR:                             Unary and Binary Expressions.
!                                                              (line    6)
! * MULT_HIGHPART_EXPR:                    Unary and Binary Expressions.
!                                                              (line    6)
! * mulvM4 instruction pattern:            Standard Names.     (line  317)
! * n in constraint:                       Simple Constraints. (line   73)
  * name:                                  Identifiers.        (line    6)
  * named address spaces:                  Named Address Spaces.
                                                               (line    6)
  * named patterns and conditions:         Patterns.           (line   49)
  * names, pattern:                        Standard Names.     (line    6)
  * namespace, scope:                      Namespaces.         (line    6)
  * NAMESPACE_DECL:                        Declarations.       (line    6)
! * NAMESPACE_DECL <1>:                    Namespaces.         (line    6)
! * NATIVE_SYSTEM_HEADER_COMPONENT:        Driver.             (line  326)
  * ne:                                    Comparisons.        (line   56)
! * ne and attributes:                     Expressions.        (line   83)
! * nearbyintM2 instruction pattern:       Standard Names.     (line  829)
! * neg:                                   Arithmetic.         (line   82)
! * neg and attributes:                    Expressions.        (line   83)
  * neg, canonicalization of:              Insn Canonicalizations.
                                                               (line   27)
  * NEGATE_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * negation:                              Arithmetic.         (line   82)
! * negation with signed saturation:       Arithmetic.         (line   82)
! * negation with unsigned saturation:     Arithmetic.         (line   82)
! * negM2 instruction pattern:             Standard Names.     (line  603)
! * negMODEcc instruction pattern:         Standard Names.     (line 1273)
! * negvM3 instruction pattern:            Standard Names.     (line  606)
  * nested functions, trampolines for:     Trampolines.        (line    6)
! * nested_ptr:                            GTY Options.        (line  147)
  * next_bb, prev_bb, FOR_EACH_BB, FOR_ALL_BB: Basic Blocks.   (line   25)
  * NEXT_INSN:                             Insns.              (line   30)
! * NEXT_OBJC_RUNTIME:                     Library Calls.      (line   82)
! * NE_EXPR:                               Unary and Binary Expressions.
!                                                              (line    6)
  * nil:                                   RTL Objects.        (line   73)
  * NM_FLAGS:                              Macros for Initialization.
!                                                              (line  110)
  * nondeterministic finite state automaton: Processor pipeline description.
!                                                              (line  304)
  * nonimmediate_operand:                  Machine-Independent Predicates.
!                                                              (line  100)
! * nonlocal goto handler:                 Edges.              (line  171)
! * nonlocal_goto instruction pattern:     Standard Names.     (line 1636)
  * nonlocal_goto_receiver instruction pattern: Standard Names.
!                                                              (line 1653)
  * nonmemory_operand:                     Machine-Independent Predicates.
!                                                              (line   96)
! * nonoffsettable memory reference:       Simple Constraints. (line  254)
! * NON_LVALUE_EXPR:                       Unary and Binary Expressions.
!                                                              (line    6)
! * nop instruction pattern:               Standard Names.     (line 1449)
  * NOP_EXPR:                              Unary and Binary Expressions.
                                                               (line    6)
  * normal predicates:                     Predicates.         (line   31)
! * not:                                   Arithmetic.         (line  154)
  * not and attributes:                    Expressions.        (line   50)
  * not equal:                             Comparisons.        (line   56)
  * not, canonicalization of:              Insn Canonicalizations.
                                                               (line   27)
! * note:                                  Insns.              (line  183)
  * note and /i:                           Flags.              (line   59)
  * note and /v:                           Flags.              (line   44)
  * NOTE_INSN_BASIC_BLOCK:                 Basic Blocks.       (line   50)
! * NOTE_INSN_BASIC_BLOCK <1>:             Basic Blocks.       (line   52)
! * NOTE_INSN_BLOCK_BEG:                   Insns.              (line  208)
! * NOTE_INSN_BLOCK_END:                   Insns.              (line  208)
! * NOTE_INSN_DELETED:                     Insns.              (line  198)
! * NOTE_INSN_DELETED_LABEL:               Insns.              (line  203)
! * NOTE_INSN_EH_REGION_BEG:               Insns.              (line  214)
! * NOTE_INSN_EH_REGION_END:               Insns.              (line  214)
! * NOTE_INSN_FUNCTION_BEG:                Insns.              (line  221)
! * NOTE_INSN_VAR_LOCATION:                Insns.              (line  225)
! * NOTE_LINE_NUMBER:                      Insns.              (line  183)
! * NOTE_SOURCE_FILE:                      Insns.              (line  183)
! * NOTE_VAR_LOCATION:                     Insns.              (line  225)
  * NOTICE_UPDATE_CC:                      CC0 Condition Codes.
!                                                              (line   30)
! * notMODEcc instruction pattern:         Standard Names.     (line 1280)
! * NO_DBX_BNSYM_ENSYM:                    DBX Hooks.          (line   25)
! * NO_DBX_FUNCTION_END:                   DBX Hooks.          (line   19)
! * NO_DBX_GCC_MARKER:                     File Names and DBX. (line   27)
! * NO_DBX_MAIN_SOURCE_DIRECTORY:          File Names and DBX. (line   22)
! * NO_DOLLAR_IN_LABEL:                    Label Output.       (line   64)
! * NO_DOT_IN_LABEL:                       Label Output.       (line   70)
! * NO_FUNCTION_CSE:                       Costs.              (line  268)
! * NO_IMPLICIT_EXTERN_C:                  Misc.               (line  381)
! * NO_PROFILE_COUNTERS:                   Profiling.          (line   27)
! * NO_REGS:                               Register Classes.   (line   17)
  * Number of iterations analysis:         Number of iterations.
                                                               (line    6)
+ * NUM_MACHINE_MODES:                     Machine Modes.      (line  297)
+ * NUM_MODES_FOR_MODE_SWITCHING:          Mode Switching.     (line   30)
+ * N_REG_CLASSES:                         Register Classes.   (line   81)
  * o in constraint:                       Simple Constraints. (line   23)
  * OACC_CACHE:                            OpenACC.            (line    6)
  * OACC_DATA:                             OpenACC.            (line    6)
*************** Concept Index
*** 49954,49965 ****
  * OACC_LOOP:                             OpenACC.            (line    6)
  * OACC_PARALLEL:                         OpenACC.            (line    6)
  * OACC_UPDATE:                           OpenACC.            (line    6)
! * OBJC_GEN_METHOD_LABEL:                 Label Output.       (line  487)
! * OBJC_JBLEN:                            Misc.               (line 1091)
  * OBJECT_FORMAT_COFF:                    Macros for Initialization.
!                                                              (line   97)
! * OFFSET_TYPE:                           Types.              (line    6)
  * offsettable address:                   Simple Constraints. (line   23)
  * OImode:                                Machine Modes.      (line   51)
  * OMP_ATOMIC:                            OpenMP.             (line    6)
  * OMP_CLAUSE:                            OpenMP.             (line    6)
--- 49529,49540 ----
  * OACC_LOOP:                             OpenACC.            (line    6)
  * OACC_PARALLEL:                         OpenACC.            (line    6)
  * OACC_UPDATE:                           OpenACC.            (line    6)
! * OBJC_GEN_METHOD_LABEL:                 Label Output.       (line  482)
! * OBJC_JBLEN:                            Misc.               (line 1085)
  * OBJECT_FORMAT_COFF:                    Macros for Initialization.
!                                                              (line   96)
  * offsettable address:                   Simple Constraints. (line   23)
+ * OFFSET_TYPE:                           Types.              (line    6)
  * OImode:                                Machine Modes.      (line   51)
  * OMP_ATOMIC:                            OpenMP.             (line    6)
  * OMP_CLAUSE:                            OpenMP.             (line    6)
*************** Concept Index
*** 49973,49988 ****
  * OMP_SECTION:                           OpenMP.             (line    6)
  * OMP_SECTIONS:                          OpenMP.             (line    6)
  * OMP_SINGLE:                            OpenMP.             (line    6)
! * one_cmplM2 instruction pattern:        Standard Names.     (line  962)
  * operand access:                        Accessors.          (line    6)
! * Operand Access Routines:               SSA Operands.       (line  119)
  * operand constraints:                   Constraints.        (line    6)
! * Operand Iterators:                     SSA Operands.       (line  119)
  * operand predicates:                    Predicates.         (line    6)
  * operand substitution:                  Output Template.    (line    6)
- * operands <1>:                          Patterns.           (line   55)
- * operands:                              SSA Operands.       (line    6)
  * Operands:                              Operands.           (line    6)
  * operator predicates:                   Predicates.         (line    6)
  * optc-gen.awk:                          Options.            (line    6)
  * OPTGROUP_ALL:                          Optimization groups.
--- 49548,49563 ----
  * OMP_SECTION:                           OpenMP.             (line    6)
  * OMP_SECTIONS:                          OpenMP.             (line    6)
  * OMP_SINGLE:                            OpenMP.             (line    6)
! * one_cmplM2 instruction pattern:        Standard Names.     (line  956)
  * operand access:                        Accessors.          (line    6)
! * Operand Access Routines:               SSA Operands.       (line  116)
  * operand constraints:                   Constraints.        (line    6)
! * Operand Iterators:                     SSA Operands.       (line  116)
  * operand predicates:                    Predicates.         (line    6)
  * operand substitution:                  Output Template.    (line    6)
  * Operands:                              Operands.           (line    6)
+ * operands:                              SSA Operands.       (line    6)
+ * operands <1>:                          Patterns.           (line   55)
  * operator predicates:                   Predicates.         (line    6)
  * optc-gen.awk:                          Options.            (line    6)
  * OPTGROUP_ALL:                          Optimization groups.
*************** Concept Index
*** 50003,50063 ****
  * optimization info file names:          Dump files and streams.
                                                               (line    6)
  * Optimization infrastructure for GIMPLE: Tree SSA.          (line    6)
! * OPTIMIZE_MODE_SWITCHING:               Mode Switching.     (line    9)
  * option specification files:            Options.            (line    6)
- * OPTION_DEFAULT_SPECS:                  Driver.             (line   26)
  * optional hardware or system features:  Run-time Target.    (line   59)
! * options, directory search:             Including Patterns. (line   44)
  * order of register allocation:          Allocation Order.   (line    6)
  * ordered_comparison_operator:           Machine-Independent Predicates.
!                                                              (line  116)
  * ORDERED_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
  * Ordering of Patterns:                  Pattern Ordering.   (line    6)
! * ORIGINAL_REGNO:                        Special Accessors.  (line   54)
! * other register constraints:            Simple Constraints. (line  173)
  * outgoing_args_size:                    Stack Arguments.    (line   48)
! * OUTGOING_REG_PARM_STACK_SPACE:         Stack Arguments.    (line   80)
! * OUTGOING_REGNO:                        Register Basics.    (line   94)
  * output of assembler code:              File Framework.     (line    6)
  * output statements:                     Output Statement.   (line    6)
  * output templates:                      Output Template.    (line    6)
! * output_asm_insn:                       Output Statement.   (line   53)
! * OUTPUT_QUOTED_STRING:                  File Framework.     (line  108)
! * OVERLAPPING_REGISTER_NAMES:            Instruction Output. (line   21)
  * OVERLOAD:                              Functions for C++.  (line    6)
! * OVERRIDE_ABI_FORMAT:                   Register Arguments. (line  155)
  * OVL_CURRENT:                           Functions for C++.  (line    6)
  * OVL_NEXT:                              Functions for C++.  (line    6)
! * p in constraint:                       Simple Constraints. (line  164)
! * PAD_VARARGS_DOWN:                      Register Arguments. (line  236)
  * parallel:                              Side Effects.       (line  210)
  * parameters, c++ abi:                   C++ ABI.            (line    6)
  * parameters, miscellaneous:             Misc.               (line    6)
  * parameters, precompiled headers:       PCH Target.         (line    6)
  * parity:                                Arithmetic.         (line  242)
! * parityM2 instruction pattern:          Standard Names.     (line  949)
! * PARM_BOUNDARY:                         Storage Layout.     (line  135)
  * PARM_DECL:                             Declarations.       (line    6)
  * PARSE_LDD_OUTPUT:                      Macros for Initialization.
!                                                              (line  127)
  * pass dumps:                            Passes.             (line    6)
- * pass_duplicate_computed_gotos:         Edges.              (line  162)
  * passes and files of the compiler:      Passes.             (line    6)
  * passing arguments:                     Interface.          (line   36)
  * PATH_SEPARATOR:                        Filesystem.         (line   31)
! * PATTERN:                               Insns.              (line  288)
  * pattern conditions:                    Patterns.           (line   43)
  * pattern names:                         Standard Names.     (line    6)
  * Pattern Ordering:                      Pattern Ordering.   (line    6)
  * patterns:                              Patterns.           (line    6)
! * pc:                                    Regs and Memory.    (line  361)
  * pc and attributes:                     Insn Lengths.       (line   20)
  * pc, RTL sharing:                       Sharing.            (line   25)
! * PC_REGNUM:                             Register Basics.    (line  108)
! * pc_rtx:                                Regs and Memory.    (line  366)
! * PCC_BITFIELD_TYPE_MATTERS:             Storage Layout.     (line  334)
! * PCC_STATIC_STRUCT_RETURN:              Aggregate Return.   (line   65)
  * PDImode:                               Machine Modes.      (line   40)
  * peephole optimization, RTL representation: Side Effects.   (line  244)
  * peephole optimizer definitions:        Peephole Definitions.
--- 49578,49638 ----
  * optimization info file names:          Dump files and streams.
                                                               (line    6)
  * Optimization infrastructure for GIMPLE: Tree SSA.          (line    6)
! * OPTIMIZE_MODE_SWITCHING:               Mode Switching.     (line    8)
  * option specification files:            Options.            (line    6)
  * optional hardware or system features:  Run-time Target.    (line   59)
! * options, directory search:             Including Patterns. (line   47)
! * OPTION_DEFAULT_SPECS:                  Driver.             (line   25)
  * order of register allocation:          Allocation Order.   (line    6)
  * ordered_comparison_operator:           Machine-Independent Predicates.
!                                                              (line  115)
  * ORDERED_EXPR:                          Unary and Binary Expressions.
                                                               (line    6)
  * Ordering of Patterns:                  Pattern Ordering.   (line    6)
! * ORIGINAL_REGNO:                        Special Accessors.  (line   53)
! * other register constraints:            Simple Constraints. (line  171)
  * outgoing_args_size:                    Stack Arguments.    (line   48)
! * OUTGOING_REGNO:                        Register Basics.    (line   93)
! * OUTGOING_REG_PARM_STACK_SPACE:         Stack Arguments.    (line   79)
  * output of assembler code:              File Framework.     (line    6)
  * output statements:                     Output Statement.   (line    6)
  * output templates:                      Output Template.    (line    6)
! * output_asm_insn:                       Output Statement.   (line   52)
! * OUTPUT_QUOTED_STRING:                  File Framework.     (line  106)
! * OVERLAPPING_REGISTER_NAMES:            Instruction Output. (line   20)
  * OVERLOAD:                              Functions for C++.  (line    6)
! * OVERRIDE_ABI_FORMAT:                   Register Arguments. (line  153)
  * OVL_CURRENT:                           Functions for C++.  (line    6)
  * OVL_NEXT:                              Functions for C++.  (line    6)
! * p in constraint:                       Simple Constraints. (line  162)
! * PAD_VARARGS_DOWN:                      Register Arguments. (line  234)
  * parallel:                              Side Effects.       (line  210)
  * parameters, c++ abi:                   C++ ABI.            (line    6)
  * parameters, miscellaneous:             Misc.               (line    6)
  * parameters, precompiled headers:       PCH Target.         (line    6)
  * parity:                                Arithmetic.         (line  242)
! * parityM2 instruction pattern:          Standard Names.     (line  943)
! * PARM_BOUNDARY:                         Storage Layout.     (line  133)
  * PARM_DECL:                             Declarations.       (line    6)
  * PARSE_LDD_OUTPUT:                      Macros for Initialization.
!                                                              (line  125)
  * pass dumps:                            Passes.             (line    6)
  * passes and files of the compiler:      Passes.             (line    6)
  * passing arguments:                     Interface.          (line   36)
+ * pass_duplicate_computed_gotos:         Edges.              (line  161)
  * PATH_SEPARATOR:                        Filesystem.         (line   31)
! * PATTERN:                               Insns.              (line  284)
  * pattern conditions:                    Patterns.           (line   43)
  * pattern names:                         Standard Names.     (line    6)
  * Pattern Ordering:                      Pattern Ordering.   (line    6)
  * patterns:                              Patterns.           (line    6)
! * pc:                                    Regs and Memory.    (line  357)
  * pc and attributes:                     Insn Lengths.       (line   20)
  * pc, RTL sharing:                       Sharing.            (line   25)
! * PCC_BITFIELD_TYPE_MATTERS:             Storage Layout.     (line  330)
! * PCC_STATIC_STRUCT_RETURN:              Aggregate Return.   (line   64)
! * PC_REGNUM:                             Register Basics.    (line  107)
! * pc_rtx:                                Regs and Memory.    (line  362)
  * PDImode:                               Machine Modes.      (line   40)
  * peephole optimization, RTL representation: Side Effects.   (line  244)
  * peephole optimizer definitions:        Peephole Definitions.
*************** Concept Index
*** 50066,50115 ****
  * percent sign:                          Output Template.    (line    6)
  * PHI nodes:                             SSA.                (line   31)
  * PIC:                                   PIC.                (line    6)
! * PIC_OFFSET_TABLE_REG_CALL_CLOBBERED:   PIC.                (line   26)
! * PIC_OFFSET_TABLE_REGNUM:               PIC.                (line   16)
  * pipeline hazard recognizer:            Processor pipeline description.
                                                               (line    6)
  * Plugins:                               Plugins.            (line    6)
  * plus:                                  Arithmetic.         (line   14)
! * plus and attributes:                   Expressions.        (line   85)
  * plus, canonicalization of:             Insn Canonicalizations.
                                                               (line   27)
  * PLUS_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * Pmode:                                 Misc.               (line  330)
  * pmode_register_operand:                Machine-Independent Predicates.
!                                                              (line   35)
  * pointer:                               Types.              (line    6)
  * POINTER_PLUS_EXPR:                     Unary and Binary Expressions.
                                                               (line    6)
! * POINTER_SIZE:                          Storage Layout.     (line   71)
  * POINTER_TYPE:                          Types.              (line    6)
- * POINTERS_EXTEND_UNSIGNED:              Storage Layout.     (line   77)
- * pop_operand:                           Machine-Independent Predicates.
-                                                              (line   88)
  * popcount:                              Arithmetic.         (line  238)
! * popcountM2 instruction pattern:        Standard Names.     (line  937)
! * pops_args:                             Function Entry.     (line  106)
  * portability:                           Portability.        (line    6)
  * position independent code:             PIC.                (line    6)
  * post_dec:                              Incdec.             (line   25)
  * post_inc:                              Incdec.             (line   30)
! * POST_LINK_SPEC:                        Driver.             (line  237)
  * post_modify:                           Incdec.             (line   33)
  * post_order_compute, inverted_post_order_compute, walk_dominator_tree: Basic Blocks.
                                                               (line   34)
! * POSTDECREMENT_EXPR:                    Unary and Binary Expressions.
!                                                              (line    6)
! * POSTINCREMENT_EXPR:                    Unary and Binary Expressions.
!                                                              (line    6)
! * POWI_MAX_MULTS:                        Misc.               (line  968)
! * powM3 instruction pattern:             Standard Names.     (line  791)
  * pragma:                                Misc.               (line  387)
- * pre_dec:                               Incdec.             (line    8)
- * PRE_GCC3_DWARF_FRAME_REGISTERS:        Frame Registers.    (line  127)
- * pre_inc:                               Incdec.             (line   22)
- * pre_modify:                            Incdec.             (line   51)
  * PREDECREMENT_EXPR:                     Unary and Binary Expressions.
                                                               (line    6)
  * predefined macros:                     Run-time Target.    (line    6)
--- 49641,49688 ----
  * percent sign:                          Output Template.    (line    6)
  * PHI nodes:                             SSA.                (line   31)
  * PIC:                                   PIC.                (line    6)
! * PIC_OFFSET_TABLE_REGNUM:               PIC.                (line   15)
! * PIC_OFFSET_TABLE_REG_CALL_CLOBBERED:   PIC.                (line   25)
  * pipeline hazard recognizer:            Processor pipeline description.
                                                               (line    6)
+ * pipeline hazard recognizer <1>:        Processor pipeline description.
+                                                              (line   53)
  * Plugins:                               Plugins.            (line    6)
  * plus:                                  Arithmetic.         (line   14)
! * plus and attributes:                   Expressions.        (line   83)
  * plus, canonicalization of:             Insn Canonicalizations.
                                                               (line   27)
  * PLUS_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * Pmode:                                 Misc.               (line  329)
  * pmode_register_operand:                Machine-Independent Predicates.
!                                                              (line   34)
  * pointer:                               Types.              (line    6)
+ * POINTERS_EXTEND_UNSIGNED:              Storage Layout.     (line   76)
  * POINTER_PLUS_EXPR:                     Unary and Binary Expressions.
                                                               (line    6)
! * POINTER_SIZE:                          Storage Layout.     (line   70)
  * POINTER_TYPE:                          Types.              (line    6)
  * popcount:                              Arithmetic.         (line  238)
! * popcountM2 instruction pattern:        Standard Names.     (line  931)
! * pops_args:                             Function Entry.     (line  104)
! * pop_operand:                           Machine-Independent Predicates.
!                                                              (line   87)
  * portability:                           Portability.        (line    6)
  * position independent code:             PIC.                (line    6)
+ * POSTDECREMENT_EXPR:                    Unary and Binary Expressions.
+                                                              (line    6)
+ * POSTINCREMENT_EXPR:                    Unary and Binary Expressions.
+                                                              (line    6)
  * post_dec:                              Incdec.             (line   25)
  * post_inc:                              Incdec.             (line   30)
! * POST_LINK_SPEC:                        Driver.             (line  236)
  * post_modify:                           Incdec.             (line   33)
  * post_order_compute, inverted_post_order_compute, walk_dominator_tree: Basic Blocks.
                                                               (line   34)
! * POWI_MAX_MULTS:                        Misc.               (line  963)
! * powM3 instruction pattern:             Standard Names.     (line  785)
  * pragma:                                Misc.               (line  387)
  * PREDECREMENT_EXPR:                     Unary and Binary Expressions.
                                                               (line    6)
  * predefined macros:                     Run-time Target.    (line    6)
*************** Concept Index
*** 50119,50230 ****
                                                               (line    6)
  * predict.def:                           Profile information.
                                                               (line   24)
! * PREFERRED_DEBUGGING_TYPE:              All Debuggers.      (line   42)
! * PREFERRED_RELOAD_CLASS:                Register Classes.   (line  253)
! * PREFERRED_STACK_BOUNDARY:              Storage Layout.     (line  149)
! * prefetch:                              Side Effects.       (line  325)
  * prefetch and /v:                       Flags.              (line  214)
! * prefetch instruction pattern:          Standard Names.     (line 1790)
  * PREFETCH_SCHEDULE_BARRIER_P:           Flags.              (line  214)
  * PREINCREMENT_EXPR:                     Unary and Binary Expressions.
                                                               (line    6)
  * presence_set:                          Processor pipeline description.
!                                                              (line  224)
  * preserving SSA form:                   SSA.                (line   74)
! * pretend_args_size:                     Function Entry.     (line  112)
  * prev_active_insn:                      define_peephole.    (line   60)
  * PREV_INSN:                             Insns.              (line   26)
! * PRINT_OPERAND:                         Instruction Output. (line   96)
! * PRINT_OPERAND_ADDRESS:                 Instruction Output. (line  124)
! * PRINT_OPERAND_PUNCT_VALID_P:           Instruction Output. (line  117)
! * probe_stack instruction pattern:       Standard Names.     (line 1637)
! * probe_stack_address instruction pattern: Standard Names.   (line 1630)
  * processor functional units:            Processor pipeline description.
                                                               (line    6)
  * processor pipeline description:        Processor pipeline description.
                                                               (line    6)
! * product:                               Arithmetic.         (line   92)
  * profile feedback:                      Profile information.
                                                               (line   14)
  * profile representation:                Profile information.
                                                               (line    6)
! * PROFILE_BEFORE_PROLOGUE:               Profiling.          (line   35)
! * PROFILE_HOOK:                          Profiling.          (line   23)
  * profiling, code generation:            Profiling.          (line    6)
! * program counter:                       Regs and Memory.    (line  362)
  * prologue:                              Function Entry.     (line    6)
! * prologue instruction pattern:          Standard Names.     (line 1728)
! * PROMOTE_MODE:                          Storage Layout.     (line   88)
  * pseudo registers:                      Regs and Memory.    (line    9)
  * PSImode:                               Machine Modes.      (line   32)
! * PTRDIFF_TYPE:                          Type Layout.        (line  164)
  * purge_dead_edges <1>:                  Maintaining the CFG.
-                                                              (line   82)
- * purge_dead_edges:                      Edges.              (line  104)
- * push address instruction:              Simple Constraints. (line  164)
- * PUSH_ARGS:                             Stack Arguments.    (line   18)
- * PUSH_ARGS_REVERSED:                    Stack Arguments.    (line   26)
- * push_operand:                          Machine-Independent Predicates.
                                                               (line   81)
! * push_reload:                           Addressing Modes.   (line  177)
! * PUSH_ROUNDING:                         Stack Arguments.    (line   32)
! * pushM1 instruction pattern:            Standard Names.     (line  292)
  * PUT_CODE:                              RTL Objects.        (line   47)
! * PUT_MODE:                              Machine Modes.      (line  295)
! * PUT_REG_NOTE_KIND:                     Insns.              (line  352)
! * PUT_SDB_:                              SDB and DWARF.      (line  115)
! * QCmode:                                Machine Modes.      (line  200)
  * QFmode:                                Machine Modes.      (line   57)
  * QImode:                                Machine Modes.      (line   25)
! * QImode, in insn:                       Insns.              (line  272)
  * QQmode:                                Machine Modes.      (line  106)
- * qualified type <1>:                    Types for C++.      (line    6)
  * qualified type:                        Types.              (line    6)
  * querying function unit reservations:   Processor pipeline description.
                                                               (line   90)
  * question mark:                         Multi-Alternative.  (line   42)
! * quotient:                              Arithmetic.         (line  115)
! * r in constraint:                       Simple Constraints. (line   66)
  * RDIV_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * READONLY_DATA_SECTION_ASM_OP:          Sections.           (line   63)
  * real operands:                         SSA Operands.       (line    6)
  * REAL_CST:                              Constant expressions.
                                                               (line    6)
! * REAL_LIBGCC_SPEC:                      Driver.             (line  125)
  * REAL_NM_FILE_NAME:                     Macros for Initialization.
!                                                              (line  106)
  * REAL_TYPE:                             Types.              (line    6)
! * REAL_VALUE_ABS:                        Floating Point.     (line   59)
! * REAL_VALUE_ATOF:                       Floating Point.     (line   41)
! * REAL_VALUE_FIX:                        Floating Point.     (line   32)
! * REAL_VALUE_ISINF:                      Floating Point.     (line   50)
! * REAL_VALUE_ISNAN:                      Floating Point.     (line   53)
! * REAL_VALUE_NEGATE:                     Floating Point.     (line   56)
! * REAL_VALUE_NEGATIVE:                   Floating Point.     (line   47)
! * REAL_VALUE_TO_TARGET_DECIMAL128:       Data Output.        (line  149)
! * REAL_VALUE_TO_TARGET_DECIMAL32:        Data Output.        (line  147)
! * REAL_VALUE_TO_TARGET_DECIMAL64:        Data Output.        (line  148)
! * REAL_VALUE_TO_TARGET_DOUBLE:           Data Output.        (line  145)
! * REAL_VALUE_TO_TARGET_LONG_DOUBLE:      Data Output.        (line  146)
! * REAL_VALUE_TO_TARGET_SINGLE:           Data Output.        (line  144)
! * REAL_VALUE_TYPE:                       Floating Point.     (line   26)
! * REAL_VALUE_UNSIGNED_FIX:               Floating Point.     (line   36)
! * REALPART_EXPR:                         Unary and Binary Expressions.
!                                                              (line    6)
! * recog_data.operand:                    Instruction Output. (line   54)
  * recognizing insns:                     RTL Template.       (line    6)
! * RECORD_TYPE <1>:                       Classes.            (line    6)
  * RECORD_TYPE:                           Types.              (line    6)
  * redirect_edge_and_branch:              Profile information.
                                                               (line   71)
  * redirect_edge_and_branch, redirect_jump: Maintaining the CFG.
!                                                              (line   92)
! * reduc_plus_scal_M instruction pattern: Standard Names.     (line  394)
! * reduc_smax_scal_M instruction pattern: Standard Names.     (line  384)
! * reduc_smin_scal_M instruction pattern: Standard Names.     (line  384)
! * reduc_umax_scal_M instruction pattern: Standard Names.     (line  389)
! * reduc_umin_scal_M instruction pattern: Standard Names.     (line  389)
  * reference:                             Types.              (line    6)
  * REFERENCE_TYPE:                        Types.              (line    6)
  * reg:                                   Regs and Memory.    (line    9)
--- 49692,49809 ----
                                                               (line    6)
  * predict.def:                           Profile information.
                                                               (line   24)
! * PREFERRED_DEBUGGING_TYPE:              All Debuggers.      (line   41)
! * PREFERRED_RELOAD_CLASS:                Register Classes.   (line  249)
! * PREFERRED_STACK_BOUNDARY:              Storage Layout.     (line  147)
! * prefetch:                              Side Effects.       (line  324)
  * prefetch and /v:                       Flags.              (line  214)
! * prefetch instruction pattern:          Standard Names.     (line 1779)
  * PREFETCH_SCHEDULE_BARRIER_P:           Flags.              (line  214)
  * PREINCREMENT_EXPR:                     Unary and Binary Expressions.
                                                               (line    6)
  * presence_set:                          Processor pipeline description.
!                                                              (line  223)
  * preserving SSA form:                   SSA.                (line   74)
! * pretend_args_size:                     Function Entry.     (line  110)
  * prev_active_insn:                      define_peephole.    (line   60)
  * PREV_INSN:                             Insns.              (line   26)
! * pre_dec:                               Incdec.             (line    8)
! * PRE_GCC3_DWARF_FRAME_REGISTERS:        Frame Registers.    (line  126)
! * pre_inc:                               Incdec.             (line   22)
! * pre_modify:                            Incdec.             (line   52)
! * PRINT_OPERAND:                         Instruction Output. (line   95)
! * PRINT_OPERAND_ADDRESS:                 Instruction Output. (line  122)
! * PRINT_OPERAND_PUNCT_VALID_P:           Instruction Output. (line  115)
! * probe_stack instruction pattern:       Standard Names.     (line 1628)
! * probe_stack_address instruction pattern: Standard Names.   (line 1621)
  * processor functional units:            Processor pipeline description.
                                                               (line    6)
+ * processor functional units <1>:        Processor pipeline description.
+                                                              (line   68)
  * processor pipeline description:        Processor pipeline description.
                                                               (line    6)
! * product:                               Arithmetic.         (line   93)
  * profile feedback:                      Profile information.
                                                               (line   14)
  * profile representation:                Profile information.
                                                               (line    6)
! * PROFILE_BEFORE_PROLOGUE:               Profiling.          (line   34)
! * PROFILE_HOOK:                          Profiling.          (line   22)
  * profiling, code generation:            Profiling.          (line    6)
! * program counter:                       Regs and Memory.    (line  358)
  * prologue:                              Function Entry.     (line    6)
! * prologue instruction pattern:          Standard Names.     (line 1717)
! * PROMOTE_MODE:                          Storage Layout.     (line   87)
  * pseudo registers:                      Regs and Memory.    (line    9)
  * PSImode:                               Machine Modes.      (line   32)
! * PTRDIFF_TYPE:                          Type Layout.        (line  163)
! * purge_dead_edges:                      Edges.              (line  103)
  * purge_dead_edges <1>:                  Maintaining the CFG.
                                                               (line   81)
! * push address instruction:              Simple Constraints. (line  162)
! * pushM1 instruction pattern:            Standard Names.     (line  288)
! * PUSH_ARGS:                             Stack Arguments.    (line   17)
! * PUSH_ARGS_REVERSED:                    Stack Arguments.    (line   25)
! * push_operand:                          Machine-Independent Predicates.
!                                                              (line   80)
! * push_reload:                           Addressing Modes.   (line  176)
! * PUSH_ROUNDING:                         Stack Arguments.    (line   31)
  * PUT_CODE:                              RTL Objects.        (line   47)
! * PUT_MODE:                              Machine Modes.      (line  294)
! * PUT_REG_NOTE_KIND:                     Insns.              (line  346)
! * PUT_SDB_...:                           SDB and DWARF.      (line  114)
! * QCmode:                                Machine Modes.      (line  199)
  * QFmode:                                Machine Modes.      (line   57)
  * QImode:                                Machine Modes.      (line   25)
! * QImode, in insn:                       Insns.              (line  268)
  * QQmode:                                Machine Modes.      (line  106)
  * qualified type:                        Types.              (line    6)
+ * qualified type <1>:                    Types for C++.      (line    6)
  * querying function unit reservations:   Processor pipeline description.
                                                               (line   90)
  * question mark:                         Multi-Alternative.  (line   42)
! * quotient:                              Arithmetic.         (line  116)
! * r in constraint:                       Simple Constraints. (line   64)
  * RDIV_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * READONLY_DATA_SECTION_ASM_OP:          Sections.           (line   62)
  * real operands:                         SSA Operands.       (line    6)
+ * REALPART_EXPR:                         Unary and Binary Expressions.
+                                                              (line    6)
  * REAL_CST:                              Constant expressions.
                                                               (line    6)
! * REAL_LIBGCC_SPEC:                      Driver.             (line  124)
  * REAL_NM_FILE_NAME:                     Macros for Initialization.
!                                                              (line  105)
  * REAL_TYPE:                             Types.              (line    6)
! * REAL_VALUE_ABS:                        Floating Point.     (line   58)
! * REAL_VALUE_ATOF:                       Floating Point.     (line   39)
! * REAL_VALUE_FIX:                        Floating Point.     (line   31)
! * REAL_VALUE_ISINF:                      Floating Point.     (line   49)
! * REAL_VALUE_ISNAN:                      Floating Point.     (line   52)
! * REAL_VALUE_NEGATE:                     Floating Point.     (line   55)
! * REAL_VALUE_NEGATIVE:                   Floating Point.     (line   46)
! * REAL_VALUE_TO_TARGET_DECIMAL128:       Data Output.        (line  147)
! * REAL_VALUE_TO_TARGET_DECIMAL32:        Data Output.        (line  145)
! * REAL_VALUE_TO_TARGET_DECIMAL64:        Data Output.        (line  146)
! * REAL_VALUE_TO_TARGET_DOUBLE:           Data Output.        (line  143)
! * REAL_VALUE_TO_TARGET_LONG_DOUBLE:      Data Output.        (line  144)
! * REAL_VALUE_TO_TARGET_SINGLE:           Data Output.        (line  142)
! * REAL_VALUE_TYPE:                       Floating Point.     (line   25)
! * REAL_VALUE_UNSIGNED_FIX:               Floating Point.     (line   34)
  * recognizing insns:                     RTL Template.       (line    6)
! * recog_data.operand:                    Instruction Output. (line   54)
  * RECORD_TYPE:                           Types.              (line    6)
+ * RECORD_TYPE <1>:                       Classes.            (line    6)
  * redirect_edge_and_branch:              Profile information.
                                                               (line   71)
  * redirect_edge_and_branch, redirect_jump: Maintaining the CFG.
!                                                              (line   90)
! * reduc_plus_scal_M instruction pattern: Standard Names.     (line  390)
! * reduc_smax_scal_M instruction pattern: Standard Names.     (line  380)
! * reduc_smin_scal_M instruction pattern: Standard Names.     (line  380)
! * reduc_umax_scal_M instruction pattern: Standard Names.     (line  385)
! * reduc_umin_scal_M instruction pattern: Standard Names.     (line  385)
  * reference:                             Types.              (line    6)
  * REFERENCE_TYPE:                        Types.              (line    6)
  * reg:                                   Regs and Memory.    (line    9)
*************** Concept Index
*** 50232,50381 ****
  * reg and /i:                            Flags.              (line   89)
  * reg and /v:                            Flags.              (line   98)
  * reg, RTL sharing:                      Sharing.            (line   17)
! * REG_ALLOC_ORDER:                       Allocation Order.   (line    9)
! * REG_BR_PRED:                           Insns.              (line  534)
! * REG_BR_PROB:                           Insns.              (line  527)
  * REG_BR_PROB_BASE, BB_FREQ_BASE, count: Profile information.
                                                               (line   82)
  * REG_BR_PROB_BASE, EDGE_FREQUENCY:      Profile information.
                                                               (line   52)
! * REG_CC_SETTER:                         Insns.              (line  498)
! * REG_CC_USER:                           Insns.              (line  498)
! * REG_CLASS_CONTENTS:                    Register Classes.   (line   93)
  * reg_class_contents:                    Register Basics.    (line   59)
  * reg_class_for_constraint:              C Constraint Interface.
!                                                              (line   50)
! * REG_CLASS_NAMES:                       Register Classes.   (line   88)
! * REG_CROSSING_JUMP:                     Insns.              (line  411)
! * REG_DEAD:                              Insns.              (line  363)
  * REG_DEAD, REG_UNUSED:                  Liveness information.
                                                               (line   32)
! * REG_DEP_ANTI:                          Insns.              (line  520)
! * REG_DEP_OUTPUT:                        Insns.              (line  516)
! * REG_DEP_TRUE:                          Insns.              (line  513)
! * REG_EH_REGION, EDGE_ABNORMAL_CALL:     Edges.              (line  110)
! * REG_EQUAL:                             Insns.              (line  426)
! * REG_EQUIV:                             Insns.              (line  426)
! * REG_EXPR:                              Special Accessors.  (line   60)
! * REG_FRAME_RELATED_EXPR:                Insns.              (line  540)
  * REG_FUNCTION_VALUE_P:                  Flags.              (line   89)
! * REG_INC:                               Insns.              (line  379)
  * reg_label and /v:                      Flags.              (line   65)
! * REG_LABEL_OPERAND:                     Insns.              (line  393)
! * REG_LABEL_TARGET:                      Insns.              (line  402)
! * reg_names <1>:                         Instruction Output. (line  108)
  * reg_names:                             Register Basics.    (line   59)
! * REG_NONNEG:                            Insns.              (line  385)
! * REG_NOTE_KIND:                         Insns.              (line  352)
! * REG_NOTES:                             Insns.              (line  325)
! * REG_OFFSET:                            Special Accessors.  (line   64)
! * REG_OK_STRICT:                         Addressing Modes.   (line  100)
! * REG_PARM_STACK_SPACE:                  Stack Arguments.    (line   59)
  * REG_PARM_STACK_SPACE, and TARGET_FUNCTION_ARG: Register Arguments.
!                                                              (line   57)
  * REG_POINTER:                           Flags.              (line   94)
! * REG_SETJMP:                            Insns.              (line  420)
! * REG_UNUSED:                            Insns.              (line  372)
  * REG_USERVAR_P:                         Flags.              (line   98)
! * REG_VALUE_IN_UNWIND_CONTEXT:           Frame Registers.    (line  157)
! * REG_WORDS_BIG_ENDIAN:                  Storage Layout.     (line   36)
! * register allocation order:             Allocation Order.   (line    6)
! * register class definitions:            Register Classes.   (line    6)
! * register class preference constraints: Class Preferences.  (line    6)
! * register pairs:                        Values in Registers.
!                                                              (line   69)
! * Register Transfer Language (RTL):      RTL.                (line    6)
! * register usage:                        Registers.          (line    6)
! * REGISTER_MOVE_COST:                    Costs.              (line   10)
! * REGISTER_NAMES:                        Instruction Output. (line    9)
! * register_operand:                      Machine-Independent Predicates.
!                                                              (line   30)
! * REGISTER_PREFIX:                       Instruction Output. (line  152)
! * REGISTER_TARGET_PRAGMAS:               Misc.               (line  388)
! * registers arguments:                   Register Arguments. (line    6)
! * registers in constraints:              Simple Constraints. (line   66)
! * REGMODE_NATURAL_SIZE:                  Values in Registers.
!                                                              (line   50)
! * REGNO_MODE_CODE_OK_FOR_BASE_P:         Register Classes.   (line  176)
! * REGNO_MODE_OK_FOR_BASE_P:              Register Classes.   (line  153)
! * REGNO_MODE_OK_FOR_REG_BASE_P:          Register Classes.   (line  163)
! * REGNO_OK_FOR_BASE_P:                   Register Classes.   (line  149)
! * REGNO_OK_FOR_INDEX_P:                  Register Classes.   (line  190)
! * REGNO_REG_CLASS:                       Register Classes.   (line  108)
! * regs_ever_live:                        Function Entry.     (line   21)
! * regular expressions:                   Processor pipeline description.
!                                                              (line    6)
  * relative costs:                        Costs.              (line    6)
! * RELATIVE_PREFIX_NOT_LINKDIR:           Driver.             (line  267)
! * reload_completed:                      Standard Names.     (line 1423)
! * reload_in instruction pattern:         Standard Names.     (line   99)
  * reload_in_progress:                    Standard Names.     (line   57)
! * reload_out instruction pattern:        Standard Names.     (line   99)
! * reloading:                             RTL passes.         (line  171)
! * remainder:                             Arithmetic.         (line  135)
! * remainderM3 instruction pattern:       Standard Names.     (line  645)
! * reorder:                               GTY Options.        (line  168)
  * representation of RTL:                 RTL.                (line    6)
  * reservation delays:                    Processor pipeline description.
                                                               (line    6)
! * rest_of_decl_compilation:              Parsing pass.       (line   52)
! * rest_of_type_compilation:              Parsing pass.       (line   52)
! * restore_stack_block instruction pattern: Standard Names.   (line 1550)
  * restore_stack_function instruction pattern: Standard Names.
!                                                              (line 1550)
  * restore_stack_nonlocal instruction pattern: Standard Names.
!                                                              (line 1550)
  * RESULT_DECL:                           Declarations.       (line    6)
  * return:                                Side Effects.       (line   72)
! * return instruction pattern:            Standard Names.     (line 1396)
  * return values in registers:            Scalar Return.      (line    6)
! * RETURN_ADDR_IN_PREVIOUS_FRAME:         Frame Layout.       (line  131)
! * RETURN_ADDR_OFFSET:                    Exception Handling. (line   60)
! * RETURN_ADDR_RTX:                       Frame Layout.       (line  120)
! * RETURN_ADDRESS_POINTER_REGNUM:         Frame Registers.    (line   65)
  * RETURN_EXPR:                           Statements for C++. (line    6)
  * RETURN_STMT:                           Statements for C++. (line    6)
  * return_val:                            Flags.              (line  274)
  * return_val, in call_insn:              Flags.              (line   24)
  * return_val, in reg:                    Flags.              (line   89)
  * return_val, in symbol_ref:             Flags.              (line  202)
- * returning aggregate values:            Aggregate Return.   (line    6)
- * returning structures and unions:       Interface.          (line   10)
  * reverse probability:                   Profile information.
                                                               (line   66)
  * REVERSE_CONDITION:                     MODE_CC Condition Codes.
!                                                              (line   93)
  * REVERSIBLE_CC_MODE:                    MODE_CC Condition Codes.
!                                                              (line   78)
! * right rotate:                          Arithmetic.         (line  194)
! * right shift:                           Arithmetic.         (line  189)
! * rintM2 instruction pattern:            Standard Names.     (line  843)
  * RISC:                                  Processor pipeline description.
                                                               (line    6)
  * roots, marking:                        GGC Roots.          (line    6)
! * rotate:                                Arithmetic.         (line  194)
! * rotatert:                              Arithmetic.         (line  194)
! * rotlM3 instruction pattern:            Standard Names.     (line  597)
! * rotrM3 instruction pattern:            Standard Names.     (line  597)
  * ROUND_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * ROUND_MOD_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
! * ROUND_TYPE_ALIGN:                      Storage Layout.     (line  432)
! * roundM2 instruction pattern:           Standard Names.     (line  820)
  * RSHIFT_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * rsqrtM2 instruction pattern:           Standard Names.     (line  625)
  * RTL addition:                          Arithmetic.         (line   14)
  * RTL addition with signed saturation:   Arithmetic.         (line   14)
  * RTL addition with unsigned saturation: Arithmetic.         (line   14)
  * RTL classes:                           RTL Classes.        (line    6)
! * RTL comparison:                        Arithmetic.         (line   43)
  * RTL comparison operations:             Comparisons.        (line    6)
  * RTL constant expression types:         Constants.          (line    6)
  * RTL constants:                         Constants.          (line    6)
  * RTL declarations:                      RTL Declarations.   (line    6)
! * RTL difference:                        Arithmetic.         (line   36)
  * RTL expression:                        RTL Objects.        (line    6)
  * RTL expressions for arithmetic:        Arithmetic.         (line    6)
  * RTL format:                            RTL Classes.        (line   72)
--- 49811,49965 ----
  * reg and /i:                            Flags.              (line   89)
  * reg and /v:                            Flags.              (line   98)
  * reg, RTL sharing:                      Sharing.            (line   17)
! * register allocation order:             Allocation Order.   (line    6)
! * register class definitions:            Register Classes.   (line    6)
! * register class preference constraints: Class Preferences.  (line    6)
! * register pairs:                        Values in Registers.
!                                                              (line   69)
! * Register Transfer Language (RTL):      RTL.                (line    6)
! * register usage:                        Registers.          (line    6)
! * registers arguments:                   Register Arguments. (line    6)
! * registers in constraints:              Simple Constraints. (line   64)
! * REGISTER_MOVE_COST:                    Costs.              (line    9)
! * REGISTER_NAMES:                        Instruction Output. (line    8)
! * register_operand:                      Machine-Independent Predicates.
!                                                              (line   29)
! * REGISTER_PREFIX:                       Instruction Output. (line  150)
! * REGISTER_TARGET_PRAGMAS:               Misc.               (line  387)
! * REGMODE_NATURAL_SIZE:                  Values in Registers.
!                                                              (line   49)
! * REGNO_MODE_CODE_OK_FOR_BASE_P:         Register Classes.   (line  172)
! * REGNO_MODE_OK_FOR_BASE_P:              Register Classes.   (line  150)
! * REGNO_MODE_OK_FOR_REG_BASE_P:          Register Classes.   (line  160)
! * REGNO_OK_FOR_BASE_P:                   Register Classes.   (line  146)
! * REGNO_OK_FOR_INDEX_P:                  Register Classes.   (line  186)
! * REGNO_REG_CLASS:                       Register Classes.   (line  105)
! * regs_ever_live:                        Function Entry.     (line   21)
! * regular expressions:                   Processor pipeline description.
!                                                              (line    6)
! * regular expressions <1>:               Processor pipeline description.
!                                                              (line  105)
! * REG_ALLOC_ORDER:                       Allocation Order.   (line    8)
! * REG_BR_PRED:                           Insns.              (line  526)
! * REG_BR_PROB:                           Insns.              (line  519)
  * REG_BR_PROB_BASE, BB_FREQ_BASE, count: Profile information.
                                                               (line   82)
  * REG_BR_PROB_BASE, EDGE_FREQUENCY:      Profile information.
                                                               (line   52)
! * REG_CC_SETTER:                         Insns.              (line  491)
! * REG_CC_USER:                           Insns.              (line  491)
  * reg_class_contents:                    Register Basics.    (line   59)
+ * REG_CLASS_CONTENTS:                    Register Classes.   (line   91)
  * reg_class_for_constraint:              C Constraint Interface.
!                                                              (line   48)
! * REG_CLASS_NAMES:                       Register Classes.   (line   86)
! * REG_CROSSING_JUMP:                     Insns.              (line  405)
! * REG_DEAD:                              Insns.              (line  357)
  * REG_DEAD, REG_UNUSED:                  Liveness information.
                                                               (line   32)
! * REG_DEP_ANTI:                          Insns.              (line  513)
! * REG_DEP_OUTPUT:                        Insns.              (line  509)
! * REG_DEP_TRUE:                          Insns.              (line  506)
! * REG_EH_REGION, EDGE_ABNORMAL_CALL:     Edges.              (line  109)
! * REG_EQUAL:                             Insns.              (line  420)
! * REG_EQUIV:                             Insns.              (line  420)
! * REG_EXPR:                              Special Accessors.  (line   58)
! * REG_FRAME_RELATED_EXPR:                Insns.              (line  532)
  * REG_FUNCTION_VALUE_P:                  Flags.              (line   89)
! * REG_INC:                               Insns.              (line  373)
  * reg_label and /v:                      Flags.              (line   65)
! * REG_LABEL_OPERAND:                     Insns.              (line  387)
! * REG_LABEL_TARGET:                      Insns.              (line  396)
  * reg_names:                             Register Basics.    (line   59)
! * reg_names <1>:                         Instruction Output. (line  107)
! * REG_NONNEG:                            Insns.              (line  379)
! * REG_NOTES:                             Insns.              (line  321)
! * REG_NOTE_KIND:                         Insns.              (line  346)
! * REG_OFFSET:                            Special Accessors.  (line   62)
! * REG_OK_STRICT:                         Addressing Modes.   (line   99)
! * REG_PARM_STACK_SPACE:                  Stack Arguments.    (line   58)
  * REG_PARM_STACK_SPACE, and TARGET_FUNCTION_ARG: Register Arguments.
!                                                              (line   56)
  * REG_POINTER:                           Flags.              (line   94)
! * REG_SETJMP:                            Insns.              (line  414)
! * REG_UNUSED:                            Insns.              (line  366)
  * REG_USERVAR_P:                         Flags.              (line   98)
! * REG_VALUE_IN_UNWIND_CONTEXT:           Frame Registers.    (line  158)
! * REG_WORDS_BIG_ENDIAN:                  Storage Layout.     (line   35)
  * relative costs:                        Costs.              (line    6)
! * RELATIVE_PREFIX_NOT_LINKDIR:           Driver.             (line  266)
! * reloading:                             RTL passes.         (line  170)
! * reload_completed:                      Standard Names.     (line 1416)
! * reload_in instruction pattern:         Standard Names.     (line   98)
  * reload_in_progress:                    Standard Names.     (line   57)
! * reload_out instruction pattern:        Standard Names.     (line   98)
! * remainder:                             Arithmetic.         (line  136)
! * remainderM3 instruction pattern:       Standard Names.     (line  639)
! * reorder:                               GTY Options.        (line  173)
  * representation of RTL:                 RTL.                (line    6)
  * reservation delays:                    Processor pipeline description.
                                                               (line    6)
! * restore_stack_block instruction pattern: Standard Names.   (line 1542)
  * restore_stack_function instruction pattern: Standard Names.
!                                                              (line 1542)
  * restore_stack_nonlocal instruction pattern: Standard Names.
!                                                              (line 1542)
! * rest_of_decl_compilation:              Parsing pass.       (line   51)
! * rest_of_type_compilation:              Parsing pass.       (line   51)
  * RESULT_DECL:                           Declarations.       (line    6)
  * return:                                Side Effects.       (line   72)
! * return instruction pattern:            Standard Names.     (line 1390)
  * return values in registers:            Scalar Return.      (line    6)
! * returning aggregate values:            Aggregate Return.   (line    6)
! * returning structures and unions:       Interface.          (line   10)
! * RETURN_ADDRESS_POINTER_REGNUM:         Frame Registers.    (line   64)
! * RETURN_ADDR_IN_PREVIOUS_FRAME:         Frame Layout.       (line  129)
! * RETURN_ADDR_OFFSET:                    Exception Handling. (line   59)
! * RETURN_ADDR_RTX:                       Frame Layout.       (line  118)
  * RETURN_EXPR:                           Statements for C++. (line    6)
  * RETURN_STMT:                           Statements for C++. (line    6)
  * return_val:                            Flags.              (line  274)
  * return_val, in call_insn:              Flags.              (line   24)
  * return_val, in reg:                    Flags.              (line   89)
  * return_val, in symbol_ref:             Flags.              (line  202)
  * reverse probability:                   Profile information.
                                                               (line   66)
  * REVERSE_CONDITION:                     MODE_CC Condition Codes.
!                                                              (line   92)
  * REVERSIBLE_CC_MODE:                    MODE_CC Condition Codes.
!                                                              (line   77)
! * right rotate:                          Arithmetic.         (line  195)
! * right shift:                           Arithmetic.         (line  190)
! * rintM2 instruction pattern:            Standard Names.     (line  837)
  * RISC:                                  Processor pipeline description.
                                                               (line    6)
+ * RISC <1>:                              Processor pipeline description.
+                                                              (line  223)
  * roots, marking:                        GGC Roots.          (line    6)
! * rotate:                                Arithmetic.         (line  195)
! * rotate <1>:                            Arithmetic.         (line  195)
! * rotatert:                              Arithmetic.         (line  195)
! * rotlM3 instruction pattern:            Standard Names.     (line  591)
! * rotrM3 instruction pattern:            Standard Names.     (line  591)
! * roundM2 instruction pattern:           Standard Names.     (line  814)
  * ROUND_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * ROUND_MOD_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
! * ROUND_TYPE_ALIGN:                      Storage Layout.     (line  427)
  * RSHIFT_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * rsqrtM2 instruction pattern:           Standard Names.     (line  619)
  * RTL addition:                          Arithmetic.         (line   14)
  * RTL addition with signed saturation:   Arithmetic.         (line   14)
  * RTL addition with unsigned saturation: Arithmetic.         (line   14)
  * RTL classes:                           RTL Classes.        (line    6)
! * RTL comparison:                        Arithmetic.         (line   46)
  * RTL comparison operations:             Comparisons.        (line    6)
  * RTL constant expression types:         Constants.          (line    6)
  * RTL constants:                         Constants.          (line    6)
  * RTL declarations:                      RTL Declarations.   (line    6)
! * RTL difference:                        Arithmetic.         (line   38)
  * RTL expression:                        RTL Objects.        (line    6)
  * RTL expressions for arithmetic:        Arithmetic.         (line    6)
  * RTL format:                            RTL Classes.        (line   72)
*************** Concept Index
*** 50394,50402 ****
  * RTL side effect expressions:           Side Effects.       (line    6)
  * RTL strings:                           RTL Objects.        (line    6)
  * RTL structure sharing assumptions:     Sharing.            (line    6)
! * RTL subtraction:                       Arithmetic.         (line   36)
! * RTL subtraction with signed saturation: Arithmetic.        (line   36)
! * RTL subtraction with unsigned saturation: Arithmetic.      (line   36)
  * RTL sum:                               Arithmetic.         (line   14)
  * RTL vectors:                           RTL Objects.        (line    6)
  * RTL_CONST_CALL_P:                      Flags.              (line   19)
--- 49978,49986 ----
  * RTL side effect expressions:           Side Effects.       (line    6)
  * RTL strings:                           RTL Objects.        (line    6)
  * RTL structure sharing assumptions:     Sharing.            (line    6)
! * RTL subtraction:                       Arithmetic.         (line   38)
! * RTL subtraction with signed saturation: Arithmetic.        (line   38)
! * RTL subtraction with unsigned saturation: Arithmetic.      (line   38)
  * RTL sum:                               Arithmetic.         (line   14)
  * RTL vectors:                           RTL Objects.        (line    6)
  * RTL_CONST_CALL_P:                      Flags.              (line   19)
*************** Concept Index
*** 50408,50621 ****
  * RTX_FRAME_RELATED_P:                   Flags.              (line  107)
  * run-time conventions:                  Interface.          (line    6)
  * run-time target specification:         Run-time Target.    (line    6)
! * s in constraint:                       Simple Constraints. (line  102)
  * SAD_EXPR:                              Vectors.            (line    6)
! * same_type_p:                           Types.              (line   88)
! * SAmode:                                Machine Modes.      (line  151)
  * sat_fract:                             Conversions.        (line   90)
- * satfractMN2 instruction pattern:       Standard Names.     (line 1147)
- * satfractunsMN2 instruction pattern:    Standard Names.     (line 1160)
- * satisfies_constraint_:                 C Constraint Interface.
-                                                              (line   37)
  * SAVE_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * save_stack_block instruction pattern:  Standard Names.     (line 1550)
! * save_stack_function instruction pattern: Standard Names.   (line 1550)
! * save_stack_nonlocal instruction pattern: Standard Names.   (line 1550)
! * SBSS_SECTION_ASM_OP:                   Sections.           (line   76)
  * Scalar evolutions:                     Scalar evolutions.  (line    6)
  * scalars, returned as values:           Scalar Return.      (line    6)
! * scalbM3 instruction pattern:           Standard Names.     (line  652)
  * SCHED_GROUP_P:                         Flags.              (line  148)
! * SCmode:                                Machine Modes.      (line  200)
! * scratch:                               Regs and Memory.    (line  298)
! * scratch operands:                      Regs and Memory.    (line  298)
  * scratch, RTL sharing:                  Sharing.            (line   35)
  * scratch_operand:                       Machine-Independent Predicates.
!                                                              (line   50)
! * SDATA_SECTION_ASM_OP:                  Sections.           (line   58)
! * SDB_ALLOW_FORWARD_REFERENCES:          SDB and DWARF.      (line  133)
! * SDB_ALLOW_UNKNOWN_REFERENCES:          SDB and DWARF.      (line  128)
! * SDB_DEBUGGING_INFO:                    SDB and DWARF.      (line    9)
! * SDB_DELIM:                             SDB and DWARF.      (line  121)
! * SDB_OUTPUT_SOURCE_LINE:                SDB and DWARF.      (line  138)
  * SDmode:                                Machine Modes.      (line   88)
! * sdot_prodM instruction pattern:        Standard Names.     (line  399)
! * search options:                        Including Patterns. (line   44)
! * SECONDARY_INPUT_RELOAD_CLASS:          Register Classes.   (line  396)
! * SECONDARY_MEMORY_NEEDED:               Register Classes.   (line  452)
! * SECONDARY_MEMORY_NEEDED_MODE:          Register Classes.   (line  471)
! * SECONDARY_MEMORY_NEEDED_RTX:           Register Classes.   (line  462)
! * SECONDARY_OUTPUT_RELOAD_CLASS:         Register Classes.   (line  397)
! * SECONDARY_RELOAD_CLASS:                Register Classes.   (line  395)
  * SELECT_CC_MODE:                        MODE_CC Condition Codes.
!                                                              (line    7)
! * sequence:                              Side Effects.       (line  260)
  * Sequence iterators:                    Sequence iterators. (line    6)
  * set:                                   Side Effects.       (line   15)
  * set and /f:                            Flags.              (line  107)
! * SET_ASM_OP:                            Label Output.       (line  454)
  * set_attr:                              Tagging Insns.      (line   31)
  * set_attr_alternative:                  Tagging Insns.      (line   49)
! * set_bb_seq:                            GIMPLE sequences.   (line   76)
  * SET_DEST:                              Side Effects.       (line   69)
  * SET_IS_RETURN_P:                       Flags.              (line  157)
  * SET_LABEL_KIND:                        Insns.              (line  146)
  * set_optab_libfunc:                     Library Calls.      (line   15)
! * SET_RATIO:                             Costs.              (line  217)
  * SET_SRC:                               Side Effects.       (line   69)
  * set_thread_pointerMODE instruction pattern: Standard Names.
!                                                              (line 2084)
  * SET_TYPE_STRUCTURAL_EQUALITY:          Types.              (line    6)
! * setmemM instruction pattern:           Standard Names.     (line 1011)
! * SETUP_FRAME_ADDRESSES:                 Frame Layout.       (line   98)
  * SFmode:                                Machine Modes.      (line   69)
  * sharing of RTL components:             Sharing.            (line    6)
! * shift:                                 Arithmetic.         (line  172)
! * SHIFT_COUNT_TRUNCATED:                 Misc.               (line  113)
  * SHLIB_SUFFIX:                          Macros for Initialization.
!                                                              (line  135)
! * SHORT_ACCUM_TYPE_SIZE:                 Type Layout.        (line   83)
! * SHORT_FRACT_TYPE_SIZE:                 Type Layout.        (line   63)
! * SHORT_IMMEDIATES_SIGN_EXTEND:          Misc.               (line   87)
! * SHORT_TYPE_SIZE:                       Type Layout.        (line   16)
! * sibcall_epilogue instruction pattern:  Standard Names.     (line 1760)
! * sibling call:                          Edges.              (line  122)
  * SIBLING_CALL_P:                        Flags.              (line  161)
! * SIG_ATOMIC_TYPE:                       Type Layout.        (line  215)
  * sign_extend:                           Conversions.        (line   23)
  * sign_extract:                          Bit-Fields.         (line    8)
  * sign_extract, canonicalization of:     Insn Canonicalizations.
!                                                              (line   88)
! * signed division:                       Arithmetic.         (line  115)
! * signed division with signed saturation: Arithmetic.        (line  115)
! * signed maximum:                        Arithmetic.         (line  140)
! * signed minimum:                        Arithmetic.         (line  140)
! * significandM2 instruction pattern:     Standard Names.     (line  784)
  * SImode:                                Machine Modes.      (line   37)
  * simple constraints:                    Simple Constraints. (line    6)
  * simple_return:                         Side Effects.       (line   86)
! * simple_return instruction pattern:     Standard Names.     (line 1412)
! * sincosM3 instruction pattern:          Standard Names.     (line  680)
! * sinM2 instruction pattern:             Standard Names.     (line  674)
! * SIZE_ASM_OP:                           Label Output.       (line   35)
! * SIZE_TYPE:                             Type Layout.        (line  138)
! * SIZETYPE:                              Type Layout.        (line  154)
! * skip:                                  GTY Options.        (line   77)
! * SLOW_BYTE_ACCESS:                      Costs.              (line  118)
! * SLOW_UNALIGNED_ACCESS:                 Costs.              (line  133)
! * smax:                                  Arithmetic.         (line  140)
! * smin:                                  Arithmetic.         (line  140)
! * sms, swing, software pipelining:       RTL passes.         (line  124)
! * smulM3_highpart instruction pattern:   Standard Names.     (line  510)
  * soft float library:                    Soft float library routines.
                                                               (line    6)
! * special:                               GTY Options.        (line  229)
  * special predicates:                    Predicates.         (line   31)
  * SPECS:                                 Target Fragment.    (line  191)
  * speed of instructions:                 Costs.              (line    6)
- * split_block:                           Maintaining the CFG.
-                                                              (line   99)
  * splitting instructions:                Insn Splitting.     (line    6)
  * SQmode:                                Machine Modes.      (line  114)
  * sqrt:                                  Arithmetic.         (line  206)
! * sqrtM2 instruction pattern:            Standard Names.     (line  619)
  * square root:                           Arithmetic.         (line  206)
! * ss_abs:                                Arithmetic.         (line  199)
! * ss_ashift:                             Arithmetic.         (line  172)
! * ss_div:                                Arithmetic.         (line  115)
! * ss_minus:                              Arithmetic.         (line   36)
! * ss_mult:                               Arithmetic.         (line   92)
! * ss_neg:                                Arithmetic.         (line   81)
  * ss_plus:                               Arithmetic.         (line   14)
  * ss_truncate:                           Conversions.        (line   43)
- * SSA:                                   SSA.                (line    6)
- * SSA_NAME_DEF_STMT:                     SSA.                (line  185)
- * SSA_NAME_VERSION:                      SSA.                (line  190)
- * ssaddM3 instruction pattern:           Standard Names.     (line  305)
- * ssadM instruction pattern:             Standard Names.     (line  408)
- * ssashlM3 instruction pattern:          Standard Names.     (line  585)
- * ssdivM3 instruction pattern:           Standard Names.     (line  305)
- * ssmaddMN4 instruction pattern:         Standard Names.     (line  533)
- * ssmsubMN4 instruction pattern:         Standard Names.     (line  557)
- * ssmulM3 instruction pattern:           Standard Names.     (line  305)
- * ssnegM2 instruction pattern:           Standard Names.     (line  609)
- * sssubM3 instruction pattern:           Standard Names.     (line  305)
  * stack arguments:                       Stack Arguments.    (line    6)
  * stack frame layout:                    Frame Layout.       (line    6)
  * stack smashing protection:             Stack Smashing Protection.
                                                               (line    6)
! * STACK_ALIGNMENT_NEEDED:                Frame Layout.       (line   44)
! * STACK_BOUNDARY:                        Storage Layout.     (line  141)
! * STACK_CHECK_BUILTIN:                   Stack Checking.     (line   32)
! * STACK_CHECK_FIXED_FRAME_SIZE:          Stack Checking.     (line   84)
! * STACK_CHECK_MAX_FRAME_SIZE:            Stack Checking.     (line   75)
! * STACK_CHECK_MAX_VAR_SIZE:              Stack Checking.     (line   91)
! * STACK_CHECK_MOVING_SP:                 Stack Checking.     (line   54)
! * STACK_CHECK_PROBE_INTERVAL_EXP:        Stack Checking.     (line   46)
! * STACK_CHECK_PROTECT:                   Stack Checking.     (line   63)
! * STACK_CHECK_STATIC_BUILTIN:            Stack Checking.     (line   39)
! * STACK_DYNAMIC_OFFSET:                  Frame Layout.       (line   71)
  * STACK_DYNAMIC_OFFSET and virtual registers: Regs and Memory.
                                                               (line   83)
! * STACK_GROWS_DOWNWARD:                  Frame Layout.       (line    9)
! * STACK_PARMS_IN_REG_PARM_AREA:          Stack Arguments.    (line   90)
! * STACK_POINTER_OFFSET:                  Frame Layout.       (line   54)
  * STACK_POINTER_OFFSET and virtual registers: Regs and Memory.
                                                               (line   93)
! * STACK_POINTER_REGNUM:                  Frame Registers.    (line    9)
  * STACK_POINTER_REGNUM and virtual registers: Regs and Memory.
                                                               (line   83)
  * stack_pointer_rtx:                     Frame Registers.    (line  104)
! * stack_protect_set instruction pattern: Standard Names.     (line 2094)
! * stack_protect_test instruction pattern: Standard Names.    (line 2104)
! * STACK_PUSH_CODE:                       Frame Layout.       (line   13)
! * STACK_REG_COVER_CLASS:                 Stack Registers.    (line   23)
! * STACK_REGS:                            Stack Registers.    (line   20)
! * STACK_SAVEAREA_MODE:                   Storage Layout.     (line  448)
! * STACK_SIZE_MODE:                       Storage Layout.     (line  459)
! * STACK_SLOT_ALIGNMENT:                  Storage Layout.     (line  279)
  * standard pattern names:                Standard Names.     (line    6)
! * STANDARD_STARTFILE_PREFIX:             Driver.             (line  279)
! * STANDARD_STARTFILE_PREFIX_1:           Driver.             (line  286)
! * STANDARD_STARTFILE_PREFIX_2:           Driver.             (line  293)
! * STARTFILE_SPEC:                        Driver.             (line  148)
! * STARTING_FRAME_OFFSET:                 Frame Layout.       (line   35)
  * STARTING_FRAME_OFFSET and virtual registers: Regs and Memory.
                                                               (line   74)
  * Statement and operand traversals:      Statement and operand traversals.
                                                               (line    6)
  * Statement Sequences:                   Statement Sequences.
                                                               (line    6)
! * statements <1>:                        Statements for C++. (line    6)
  * statements:                            Function Properties.
                                                               (line    6)
! * Statements:                            Statements.         (line    6)
  * Static profile estimation:             Profile information.
                                                               (line   24)
  * static single assignment:              SSA.                (line    6)
! * STATIC_CHAIN_INCOMING_REGNUM:          Frame Registers.    (line   78)
! * STATIC_CHAIN_REGNUM:                   Frame Registers.    (line   77)
  * stdarg.h and register arguments:       Register Arguments. (line   51)
! * STDC_0_IN_SYSTEM_HEADERS:              Misc.               (line  351)
  * STMT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * STMT_IS_FULL_EXPR_P:                   Statements for C++. (line   22)
  * storage layout:                        Storage Layout.     (line    6)
! * STORE_FLAG_VALUE:                      Misc.               (line  202)
! * store_multiple instruction pattern:    Standard Names.     (line  160)
! * strcpy:                                Storage Layout.     (line  231)
! * STRICT_ALIGNMENT:                      Storage Layout.     (line  329)
  * strict_low_part:                       RTL Declarations.   (line    9)
! * strict_memory_address_p:               Addressing Modes.   (line  187)
  * STRING_CST:                            Constant expressions.
                                                               (line    6)
  * STRING_POOL_ADDRESS_P:                 Flags.              (line  165)
! * strlenM instruction pattern:           Standard Names.     (line 1082)
  * structure value address:               Aggregate Return.   (line    6)
- * STRUCTURE_SIZE_BOUNDARY:               Storage Layout.     (line  321)
  * structures, returning:                 Interface.          (line   10)
! * subM3 instruction pattern:             Standard Names.     (line  305)
  * SUBOBJECT:                             Statements for C++. (line    6)
  * SUBOBJECT_CLEANUP:                     Statements for C++. (line    6)
  * subreg:                                Regs and Memory.    (line   97)
--- 49992,50207 ----
  * RTX_FRAME_RELATED_P:                   Flags.              (line  107)
  * run-time conventions:                  Interface.          (line    6)
  * run-time target specification:         Run-time Target.    (line    6)
! * s in constraint:                       Simple Constraints. (line  100)
  * SAD_EXPR:                              Vectors.            (line    6)
! * same_type_p:                           Types.              (line   86)
! * SAmode:                                Machine Modes.      (line  150)
! * satfractMN2 instruction pattern:       Standard Names.     (line 1141)
! * satfractunsMN2 instruction pattern:    Standard Names.     (line 1154)
! * satisfies_constraint_M:                C Constraint Interface.
!                                                              (line   36)
  * sat_fract:                             Conversions.        (line   90)
  * SAVE_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * save_stack_block instruction pattern:  Standard Names.     (line 1542)
! * save_stack_function instruction pattern: Standard Names.   (line 1542)
! * save_stack_nonlocal instruction pattern: Standard Names.   (line 1542)
! * SBSS_SECTION_ASM_OP:                   Sections.           (line   75)
  * Scalar evolutions:                     Scalar evolutions.  (line    6)
  * scalars, returned as values:           Scalar Return.      (line    6)
! * scalbM3 instruction pattern:           Standard Names.     (line  646)
  * SCHED_GROUP_P:                         Flags.              (line  148)
! * SCmode:                                Machine Modes.      (line  199)
! * scratch:                               Regs and Memory.    (line  294)
! * scratch operands:                      Regs and Memory.    (line  294)
  * scratch, RTL sharing:                  Sharing.            (line   35)
  * scratch_operand:                       Machine-Independent Predicates.
!                                                              (line   49)
! * SDATA_SECTION_ASM_OP:                  Sections.           (line   57)
! * SDB_ALLOW_FORWARD_REFERENCES:          SDB and DWARF.      (line  132)
! * SDB_ALLOW_UNKNOWN_REFERENCES:          SDB and DWARF.      (line  127)
! * SDB_DEBUGGING_INFO:                    SDB and DWARF.      (line    8)
! * SDB_DELIM:                             SDB and DWARF.      (line  120)
! * SDB_OUTPUT_SOURCE_LINE:                SDB and DWARF.      (line  137)
  * SDmode:                                Machine Modes.      (line   88)
! * sdot_prodM instruction pattern:        Standard Names.     (line  395)
! * search options:                        Including Patterns. (line   47)
! * SECONDARY_INPUT_RELOAD_CLASS:          Register Classes.   (line  391)
! * SECONDARY_MEMORY_NEEDED:               Register Classes.   (line  447)
! * SECONDARY_MEMORY_NEEDED_MODE:          Register Classes.   (line  466)
! * SECONDARY_MEMORY_NEEDED_RTX:           Register Classes.   (line  457)
! * SECONDARY_OUTPUT_RELOAD_CLASS:         Register Classes.   (line  392)
! * SECONDARY_RELOAD_CLASS:                Register Classes.   (line  390)
  * SELECT_CC_MODE:                        MODE_CC Condition Codes.
!                                                              (line    6)
! * sequence:                              Side Effects.       (line  259)
  * Sequence iterators:                    Sequence iterators. (line    6)
  * set:                                   Side Effects.       (line   15)
  * set and /f:                            Flags.              (line  107)
! * setmemM instruction pattern:           Standard Names.     (line 1005)
! * SETUP_FRAME_ADDRESSES:                 Frame Layout.       (line   96)
! * SET_ASM_OP:                            Label Output.       (line  451)
! * SET_ASM_OP <1>:                        Label Output.       (line  462)
  * set_attr:                              Tagging Insns.      (line   31)
  * set_attr_alternative:                  Tagging Insns.      (line   49)
! * set_bb_seq:                            GIMPLE sequences.   (line   75)
  * SET_DEST:                              Side Effects.       (line   69)
  * SET_IS_RETURN_P:                       Flags.              (line  157)
  * SET_LABEL_KIND:                        Insns.              (line  146)
  * set_optab_libfunc:                     Library Calls.      (line   15)
! * SET_RATIO:                             Costs.              (line  216)
  * SET_SRC:                               Side Effects.       (line   69)
  * set_thread_pointerMODE instruction pattern: Standard Names.
!                                                              (line 2073)
  * SET_TYPE_STRUCTURAL_EQUALITY:          Types.              (line    6)
! * SET_TYPE_STRUCTURAL_EQUALITY <1>:      Types.              (line   81)
  * SFmode:                                Machine Modes.      (line   69)
  * sharing of RTL components:             Sharing.            (line    6)
! * shift:                                 Arithmetic.         (line  173)
! * SHIFT_COUNT_TRUNCATED:                 Misc.               (line  112)
  * SHLIB_SUFFIX:                          Macros for Initialization.
!                                                              (line  133)
! * SHORT_ACCUM_TYPE_SIZE:                 Type Layout.        (line   82)
! * SHORT_FRACT_TYPE_SIZE:                 Type Layout.        (line   62)
! * SHORT_IMMEDIATES_SIGN_EXTEND:          Misc.               (line   86)
! * SHORT_TYPE_SIZE:                       Type Layout.        (line   15)
! * sibcall_epilogue instruction pattern:  Standard Names.     (line 1749)
! * sibling call:                          Edges.              (line  121)
  * SIBLING_CALL_P:                        Flags.              (line  161)
! * signed division:                       Arithmetic.         (line  116)
! * signed division with signed saturation: Arithmetic.        (line  116)
! * signed maximum:                        Arithmetic.         (line  141)
! * signed minimum:                        Arithmetic.         (line  141)
! * significandM2 instruction pattern:     Standard Names.     (line  778)
  * sign_extend:                           Conversions.        (line   23)
  * sign_extract:                          Bit-Fields.         (line    8)
  * sign_extract, canonicalization of:     Insn Canonicalizations.
!                                                              (line   87)
! * SIG_ATOMIC_TYPE:                       Type Layout.        (line  214)
  * SImode:                                Machine Modes.      (line   37)
  * simple constraints:                    Simple Constraints. (line    6)
  * simple_return:                         Side Effects.       (line   86)
! * simple_return instruction pattern:     Standard Names.     (line 1405)
! * sincosM3 instruction pattern:          Standard Names.     (line  674)
! * sinM2 instruction pattern:             Standard Names.     (line  668)
! * SIZETYPE:                              Type Layout.        (line  153)
! * SIZE_ASM_OP:                           Label Output.       (line   33)
! * SIZE_TYPE:                             Type Layout.        (line  137)
! * skip:                                  GTY Options.        (line   76)
! * SLOW_BYTE_ACCESS:                      Costs.              (line  117)
! * SLOW_UNALIGNED_ACCESS:                 Costs.              (line  132)
! * smax:                                  Arithmetic.         (line  141)
! * smin:                                  Arithmetic.         (line  141)
! * sms, swing, software pipelining:       RTL passes.         (line  123)
! * smulM3_highpart instruction pattern:   Standard Names.     (line  504)
  * soft float library:                    Soft float library routines.
                                                               (line    6)
! * special:                               GTY Options.        (line  236)
  * special predicates:                    Predicates.         (line   31)
  * SPECS:                                 Target Fragment.    (line  191)
  * speed of instructions:                 Costs.              (line    6)
  * splitting instructions:                Insn Splitting.     (line    6)
+ * split_block:                           Maintaining the CFG.
+                                                              (line   97)
  * SQmode:                                Machine Modes.      (line  114)
  * sqrt:                                  Arithmetic.         (line  206)
! * sqrtM2 instruction pattern:            Standard Names.     (line  613)
  * square root:                           Arithmetic.         (line  206)
! * SSA:                                   SSA.                (line    6)
! * ssaddM3 instruction pattern:           Standard Names.     (line  301)
! * ssadM instruction pattern:             Standard Names.     (line  404)
! * ssashlM3 instruction pattern:          Standard Names.     (line  579)
! * SSA_NAME_DEF_STMT:                     SSA.                (line  184)
! * SSA_NAME_VERSION:                      SSA.                (line  189)
! * ssdivM3 instruction pattern:           Standard Names.     (line  301)
! * ssmaddMN4 instruction pattern:         Standard Names.     (line  527)
! * ssmsubMN4 instruction pattern:         Standard Names.     (line  551)
! * ssmulM3 instruction pattern:           Standard Names.     (line  301)
! * ssnegM2 instruction pattern:           Standard Names.     (line  603)
! * sssubM3 instruction pattern:           Standard Names.     (line  301)
! * ss_abs:                                Arithmetic.         (line  200)
! * ss_ashift:                             Arithmetic.         (line  173)
! * ss_div:                                Arithmetic.         (line  116)
! * ss_minus:                              Arithmetic.         (line   38)
! * ss_mult:                               Arithmetic.         (line   93)
! * ss_neg:                                Arithmetic.         (line   82)
  * ss_plus:                               Arithmetic.         (line   14)
  * ss_truncate:                           Conversions.        (line   43)
  * stack arguments:                       Stack Arguments.    (line    6)
  * stack frame layout:                    Frame Layout.       (line    6)
  * stack smashing protection:             Stack Smashing Protection.
                                                               (line    6)
! * STACK_ALIGNMENT_NEEDED:                Frame Layout.       (line   43)
! * STACK_BOUNDARY:                        Storage Layout.     (line  139)
! * STACK_CHECK_BUILTIN:                   Stack Checking.     (line   31)
! * STACK_CHECK_FIXED_FRAME_SIZE:          Stack Checking.     (line   83)
! * STACK_CHECK_MAX_FRAME_SIZE:            Stack Checking.     (line   74)
! * STACK_CHECK_MAX_VAR_SIZE:              Stack Checking.     (line   90)
! * STACK_CHECK_MOVING_SP:                 Stack Checking.     (line   53)
! * STACK_CHECK_PROBE_INTERVAL_EXP:        Stack Checking.     (line   45)
! * STACK_CHECK_PROTECT:                   Stack Checking.     (line   62)
! * STACK_CHECK_STATIC_BUILTIN:            Stack Checking.     (line   38)
! * STACK_DYNAMIC_OFFSET:                  Frame Layout.       (line   69)
  * STACK_DYNAMIC_OFFSET and virtual registers: Regs and Memory.
                                                               (line   83)
! * STACK_GROWS_DOWNWARD:                  Frame Layout.       (line    8)
! * STACK_PARMS_IN_REG_PARM_AREA:          Stack Arguments.    (line   89)
! * STACK_POINTER_OFFSET:                  Frame Layout.       (line   53)
  * STACK_POINTER_OFFSET and virtual registers: Regs and Memory.
                                                               (line   93)
! * STACK_POINTER_REGNUM:                  Frame Registers.    (line    8)
  * STACK_POINTER_REGNUM and virtual registers: Regs and Memory.
                                                               (line   83)
  * stack_pointer_rtx:                     Frame Registers.    (line  104)
! * stack_protect_set instruction pattern: Standard Names.     (line 2083)
! * stack_protect_test instruction pattern: Standard Names.    (line 2093)
! * STACK_PUSH_CODE:                       Frame Layout.       (line   12)
! * STACK_REGS:                            Stack Registers.    (line   19)
! * STACK_REG_COVER_CLASS:                 Stack Registers.    (line   22)
! * STACK_SAVEAREA_MODE:                   Storage Layout.     (line  443)
! * STACK_SIZE_MODE:                       Storage Layout.     (line  454)
! * STACK_SLOT_ALIGNMENT:                  Storage Layout.     (line  275)
  * standard pattern names:                Standard Names.     (line    6)
! * STANDARD_STARTFILE_PREFIX:             Driver.             (line  278)
! * STANDARD_STARTFILE_PREFIX_1:           Driver.             (line  285)
! * STANDARD_STARTFILE_PREFIX_2:           Driver.             (line  292)
! * STARTFILE_SPEC:                        Driver.             (line  147)
! * STARTING_FRAME_OFFSET:                 Frame Layout.       (line   34)
  * STARTING_FRAME_OFFSET and virtual registers: Regs and Memory.
                                                               (line   74)
  * Statement and operand traversals:      Statement and operand traversals.
                                                               (line    6)
  * Statement Sequences:                   Statement Sequences.
                                                               (line    6)
! * Statements:                            Statements.         (line    6)
  * statements:                            Function Properties.
                                                               (line    6)
! * statements <1>:                        Statements for C++. (line    6)
  * Static profile estimation:             Profile information.
                                                               (line   24)
  * static single assignment:              SSA.                (line    6)
! * STATIC_CHAIN_INCOMING_REGNUM:          Frame Registers.    (line   77)
! * STATIC_CHAIN_REGNUM:                   Frame Registers.    (line   76)
  * stdarg.h and register arguments:       Register Arguments. (line   51)
! * STDC_0_IN_SYSTEM_HEADERS:              Misc.               (line  350)
  * STMT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * STMT_IS_FULL_EXPR_P:                   Statements for C++. (line   22)
  * storage layout:                        Storage Layout.     (line    6)
! * STORE_FLAG_VALUE:                      Misc.               (line  201)
! * store_multiple instruction pattern:    Standard Names.     (line  159)
! * strcpy:                                Storage Layout.     (line  228)
! * STRICT_ALIGNMENT:                      Storage Layout.     (line  325)
  * strict_low_part:                       RTL Declarations.   (line    9)
! * strict_memory_address_p:               Addressing Modes.   (line  186)
  * STRING_CST:                            Constant expressions.
                                                               (line    6)
  * STRING_POOL_ADDRESS_P:                 Flags.              (line  165)
! * strlenM instruction pattern:           Standard Names.     (line 1076)
  * structure value address:               Aggregate Return.   (line    6)
  * structures, returning:                 Interface.          (line   10)
! * STRUCTURE_SIZE_BOUNDARY:               Storage Layout.     (line  317)
! * subM3 instruction pattern:             Standard Names.     (line  301)
  * SUBOBJECT:                             Statements for C++. (line    6)
  * SUBOBJECT_CLEANUP:                     Statements for C++. (line    6)
  * subreg:                                Regs and Memory.    (line   97)
*************** Concept Index
*** 50623,51252 ****
  * subreg and /u:                         Flags.              (line  180)
  * subreg and /u and /v:                  Flags.              (line  170)
  * subreg, in strict_low_part:            RTL Declarations.   (line    9)
! * SUBREG_BYTE:                           Regs and Memory.    (line  289)
  * SUBREG_PROMOTED_UNSIGNED_P:            Flags.              (line  170)
  * SUBREG_PROMOTED_UNSIGNED_SET:          Flags.              (line  180)
  * SUBREG_PROMOTED_VAR_P:                 Flags.              (line  187)
! * SUBREG_REG:                            Regs and Memory.    (line  289)
  * subst iterators in .md files:          Subst Iterators.    (line    6)
! * subvM4 instruction pattern:            Standard Names.     (line  321)
  * SUCCESS_EXIT_CODE:                     Host Misc.          (line   12)
  * SUPPORTS_INIT_PRIORITY:                Macros for Initialization.
!                                                              (line   58)
! * SUPPORTS_ONE_ONLY:                     Label Output.       (line  294)
! * SUPPORTS_WEAK:                         Label Output.       (line  268)
  * SWITCH_BODY:                           Statements for C++. (line    6)
  * SWITCH_COND:                           Statements for C++. (line    6)
  * SWITCH_STMT:                           Statements for C++. (line    6)
! * SWITCHABLE_TARGET:                     Run-time Target.    (line  165)
! * SYMBOL_FLAG_ANCHOR:                    Special Accessors.  (line  120)
! * SYMBOL_FLAG_EXTERNAL:                  Special Accessors.  (line  102)
! * SYMBOL_FLAG_FUNCTION:                  Special Accessors.  (line   95)
! * SYMBOL_FLAG_HAS_BLOCK_INFO:            Special Accessors.  (line  116)
! * SYMBOL_FLAG_LOCAL:                     Special Accessors.  (line   98)
! * SYMBOL_FLAG_SMALL:                     Special Accessors.  (line  107)
! * SYMBOL_FLAG_TLS_SHIFT:                 Special Accessors.  (line  111)
  * symbol_ref:                            Constants.          (line  117)
  * symbol_ref and /f:                     Flags.              (line  165)
  * symbol_ref and /i:                     Flags.              (line  202)
  * symbol_ref and /u:                     Flags.              (line   10)
  * symbol_ref and /v:                     Flags.              (line  206)
  * symbol_ref, RTL sharing:               Sharing.            (line   20)
! * SYMBOL_REF_ANCHOR_P:                   Special Accessors.  (line  120)
! * SYMBOL_REF_BLOCK:                      Special Accessors.  (line  133)
! * SYMBOL_REF_BLOCK_OFFSET:               Special Accessors.  (line  138)
! * SYMBOL_REF_CONSTANT:                   Special Accessors.  (line   81)
! * SYMBOL_REF_DATA:                       Special Accessors.  (line   85)
! * SYMBOL_REF_DECL:                       Special Accessors.  (line   69)
! * SYMBOL_REF_EXTERNAL_P:                 Special Accessors.  (line  102)
  * SYMBOL_REF_FLAG:                       Flags.              (line  206)
  * SYMBOL_REF_FLAG, in TARGET_ENCODE_SECTION_INFO: Sections.  (line  277)
! * SYMBOL_REF_FLAGS:                      Special Accessors.  (line   89)
! * SYMBOL_REF_FUNCTION_P:                 Special Accessors.  (line   95)
! * SYMBOL_REF_HAS_BLOCK_INFO_P:           Special Accessors.  (line  116)
! * SYMBOL_REF_LOCAL_P:                    Special Accessors.  (line   98)
! * SYMBOL_REF_SMALL_P:                    Special Accessors.  (line  107)
! * SYMBOL_REF_TLS_MODEL:                  Special Accessors.  (line  111)
  * SYMBOL_REF_USED:                       Flags.              (line  197)
  * SYMBOL_REF_WEAK:                       Flags.              (line  202)
! * symbolic label:                        Sharing.            (line   20)
! * sync_addMODE instruction pattern:      Standard Names.     (line 1859)
! * sync_andMODE instruction pattern:      Standard Names.     (line 1859)
  * sync_compare_and_swapMODE instruction pattern: Standard Names.
!                                                              (line 1819)
! * sync_iorMODE instruction pattern:      Standard Names.     (line 1859)
! * sync_lock_releaseMODE instruction pattern: Standard Names. (line 1924)
  * sync_lock_test_and_setMODE instruction pattern: Standard Names.
!                                                              (line 1898)
! * sync_nandMODE instruction pattern:     Standard Names.     (line 1859)
! * sync_new_addMODE instruction pattern:  Standard Names.     (line 1891)
! * sync_new_andMODE instruction pattern:  Standard Names.     (line 1891)
! * sync_new_iorMODE instruction pattern:  Standard Names.     (line 1891)
! * sync_new_nandMODE instruction pattern: Standard Names.     (line 1891)
! * sync_new_subMODE instruction pattern:  Standard Names.     (line 1891)
! * sync_new_xorMODE instruction pattern:  Standard Names.     (line 1891)
! * sync_old_addMODE instruction pattern:  Standard Names.     (line 1874)
! * sync_old_andMODE instruction pattern:  Standard Names.     (line 1874)
! * sync_old_iorMODE instruction pattern:  Standard Names.     (line 1874)
! * sync_old_nandMODE instruction pattern: Standard Names.     (line 1874)
! * sync_old_subMODE instruction pattern:  Standard Names.     (line 1874)
! * sync_old_xorMODE instruction pattern:  Standard Names.     (line 1874)
! * sync_subMODE instruction pattern:      Standard Names.     (line 1859)
! * sync_xorMODE instruction pattern:      Standard Names.     (line 1859)
! * SYSROOT_HEADERS_SUFFIX_SPEC:           Driver.             (line  177)
! * SYSROOT_SUFFIX_SPEC:                   Driver.             (line  172)
  * t-TARGET:                              Target Fragment.    (line    6)
  * table jump:                            Basic Blocks.       (line   67)
! * tablejump instruction pattern:         Standard Names.     (line 1485)
  * tag:                                   GTY Options.        (line   88)
  * tagging insns:                         Tagging Insns.      (line    6)
  * tail calls:                            Tail Calls.         (line    6)
! * TAmode:                                Machine Modes.      (line  159)
! * tanM2 instruction pattern:             Standard Names.     (line  691)
  * target attributes:                     Target Attributes.  (line    6)
  * target description macros:             Target Macros.      (line    6)
  * target functions:                      Target Structure.   (line    6)
  * target hooks:                          Target Structure.   (line    6)
  * target makefile fragment:              Target Fragment.    (line    6)
  * target specifications:                 Run-time Target.    (line    6)
! * TARGET_ABSOLUTE_BIGGEST_ALIGNMENT:     Storage Layout.     (line  170)
  * TARGET_ADDR_SPACE_ADDRESS_MODE:        Named Address Spaces.
!                                                              (line   44)
  * TARGET_ADDR_SPACE_CONVERT:             Named Address Spaces.
!                                                              (line   92)
  * TARGET_ADDR_SPACE_DEBUG:               Named Address Spaces.
!                                                              (line  101)
  * TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P: Named Address Spaces.
!                                                              (line   61)
  * TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS:  Named Address Spaces.
!                                                              (line   70)
  * TARGET_ADDR_SPACE_POINTER_MODE:        Named Address Spaces.
!                                                              (line   38)
  * TARGET_ADDR_SPACE_SUBSET_P:            Named Address Spaces.
!                                                              (line   77)
  * TARGET_ADDR_SPACE_VALID_POINTER_MODE:  Named Address Spaces.
!                                                              (line   50)
  * TARGET_ADDR_SPACE_ZERO_ADDRESS_VALID:  Named Address Spaces.
!                                                              (line   86)
! * TARGET_ADDRESS_COST:                   Costs.              (line  325)
! * TARGET_ALIGN_ANON_BITFIELD:            Storage Layout.     (line  406)
! * TARGET_ALLOCATE_INITIAL_VALUE:         Misc.               (line  815)
! * TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS:  Misc.               (line 1113)
! * TARGET_ALWAYS_STRIP_DOTDOT:            Driver.             (line  251)
! * TARGET_ARG_PARTIAL_BYTES:              Register Arguments. (line   98)
  * TARGET_ARM_EABI_UNWINDER:              Exception Region Output.
!                                                              (line  136)
! * TARGET_ARRAY_MODE_SUPPORTED_P:         Register Arguments. (line  349)
! * TARGET_ASAN_SHADOW_OFFSET:             Misc.               (line 1141)
! * TARGET_ASM_ALIGNED_DI_OP:              Data Output.        (line   10)
! * TARGET_ASM_ALIGNED_HI_OP:              Data Output.        (line    8)
! * TARGET_ASM_ALIGNED_SI_OP:              Data Output.        (line    9)
! * TARGET_ASM_ALIGNED_TI_OP:              Data Output.        (line   11)
! * TARGET_ASM_ASSEMBLE_UNDEFINED_DECL:    Label Output.       (line  236)
! * TARGET_ASM_ASSEMBLE_VISIBILITY:        Label Output.       (line  306)
! * TARGET_ASM_BYTE_OP:                    Data Output.        (line    7)
! * TARGET_ASM_CAN_OUTPUT_MI_THUNK:        Function Entry.     (line  207)
! * TARGET_ASM_CLOSE_PAREN:                Data Output.        (line  135)
! * TARGET_ASM_CODE_END:                   File Framework.     (line   59)
  * TARGET_ASM_CONSTRUCTOR:                Macros for Initialization.
!                                                              (line   69)
! * TARGET_ASM_DECL_END:                   Data Output.        (line   39)
! * TARGET_ASM_DECLARE_CONSTANT_NAME:      Label Output.       (line  182)
  * TARGET_ASM_DESTRUCTOR:                 Macros for Initialization.
!                                                              (line   83)
! * TARGET_ASM_EMIT_EXCEPT_PERSONALITY:    Dispatch Tables.    (line   82)
! * TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL:    Dispatch Tables.    (line   74)
! * TARGET_ASM_EMIT_UNWIND_LABEL:          Dispatch Tables.    (line   63)
! * TARGET_ASM_EXTERNAL_LIBCALL:           Label Output.       (line  341)
! * TARGET_ASM_FILE_END:                   File Framework.     (line   37)
! * TARGET_ASM_FILE_START:                 File Framework.     (line    9)
! * TARGET_ASM_FILE_START_APP_OFF:         File Framework.     (line   17)
! * TARGET_ASM_FILE_START_FILE_DIRECTIVE:  File Framework.     (line   31)
! * TARGET_ASM_FINAL_POSTSCAN_INSN:        Instruction Output. (line   84)
! * TARGET_ASM_FUNCTION_BEGIN_EPILOGUE:    Function Entry.     (line   61)
! * TARGET_ASM_FUNCTION_END_PROLOGUE:      Function Entry.     (line   55)
! * TARGET_ASM_FUNCTION_EPILOGUE:          Function Entry.     (line   68)
! * TARGET_ASM_FUNCTION_PROLOGUE:          Function Entry.     (line   11)
! * TARGET_ASM_FUNCTION_RODATA_SECTION:    Sections.           (line  215)
! * TARGET_ASM_FUNCTION_SECTION:           File Framework.     (line  124)
  * TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS: File Framework.
!                                                              (line  134)
! * TARGET_ASM_GLOBALIZE_DECL_NAME:        Label Output.       (line  227)
! * TARGET_ASM_GLOBALIZE_LABEL:            Label Output.       (line  218)
! * TARGET_ASM_INIT_SECTIONS:              Sections.           (line  160)
! * TARGET_ASM_INTEGER:                    Data Output.        (line   27)
! * TARGET_ASM_INTERNAL_LABEL:             Label Output.       (line  385)
! * TARGET_ASM_JUMP_ALIGN_MAX_SKIP:        Alignment Output.   (line   22)
  * TARGET_ASM_LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP: Alignment Output.
!                                                              (line   36)
! * TARGET_ASM_LABEL_ALIGN_MAX_SKIP:       Alignment Output.   (line   69)
! * TARGET_ASM_LOOP_ALIGN_MAX_SKIP:        Alignment Output.   (line   54)
! * TARGET_ASM_LTO_END:                    File Framework.     (line   54)
! * TARGET_ASM_LTO_START:                  File Framework.     (line   49)
! * TARGET_ASM_MARK_DECL_PRESERVED:        Label Output.       (line  348)
! * TARGET_ASM_MERGEABLE_RODATA_PREFIX:    Sections.           (line  222)
! * TARGET_ASM_NAMED_SECTION:              File Framework.     (line  116)
! * TARGET_ASM_OPEN_PAREN:                 Data Output.        (line  134)
! * TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA:    Data Output.        (line   44)
! * TARGET_ASM_OUTPUT_ANCHOR:              Anchored Addresses. (line   44)
! * TARGET_ASM_OUTPUT_DWARF_DTPREL:        SDB and DWARF.      (line  110)
! * TARGET_ASM_OUTPUT_IDENT:               File Framework.     (line  102)
! * TARGET_ASM_OUTPUT_MI_THUNK:            Function Entry.     (line  165)
! * TARGET_ASM_OUTPUT_SOURCE_FILENAME:     File Framework.     (line   94)
! * TARGET_ASM_RECORD_GCC_SWITCHES:        File Framework.     (line  165)
! * TARGET_ASM_RECORD_GCC_SWITCHES_SECTION: File Framework.    (line  209)
! * TARGET_ASM_RELOC_RW_MASK:              Sections.           (line  169)
! * TARGET_ASM_SELECT_RTX_SECTION:         Sections.           (line  232)
! * TARGET_ASM_SELECT_SECTION:             Sections.           (line  181)
! * TARGET_ASM_TM_CLONE_TABLE_SECTION:     Sections.           (line  227)
! * TARGET_ASM_TRAMPOLINE_TEMPLATE:        Trampolines.        (line   29)
  * TARGET_ASM_TTYPE:                      Exception Region Output.
!                                                              (line  130)
! * TARGET_ASM_UNALIGNED_DI_OP:            Data Output.        (line   14)
! * TARGET_ASM_UNALIGNED_HI_OP:            Data Output.        (line   12)
! * TARGET_ASM_UNALIGNED_SI_OP:            Data Output.        (line   13)
! * TARGET_ASM_UNALIGNED_TI_OP:            Data Output.        (line   15)
! * TARGET_ASM_UNIQUE_SECTION:             Sections.           (line  202)
! * TARGET_ASM_UNWIND_EMIT:                Dispatch Tables.    (line   89)
! * TARGET_ASM_UNWIND_EMIT_BEFORE_INSN:    Dispatch Tables.    (line   94)
! * TARGET_ATOMIC_ALIGN_FOR_MODE:          Misc.               (line 1161)
! * TARGET_ATOMIC_ASSIGN_EXPAND_FENV:      Misc.               (line 1167)
! * TARGET_ATOMIC_TEST_AND_SET_TRUEVAL:    Misc.               (line 1151)
! * TARGET_ATTRIBUTE_TABLE:                Target Attributes.  (line   11)
! * TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P:   Target Attributes.  (line   19)
! * TARGET_BINDS_LOCAL_P:                  Sections.           (line  309)
! * TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED: Misc.          (line  912)
! * TARGET_BRANCH_TARGET_REGISTER_CLASS:   Misc.               (line  904)
! * TARGET_BUILD_BUILTIN_VA_LIST:          Register Arguments. (line  287)
  * TARGET_BUILTIN_CHKP_FUNCTION:          Misc.               (line  625)
! * TARGET_BUILTIN_DECL:                   Misc.               (line  606)
! * TARGET_BUILTIN_RECIPROCAL:             Addressing Modes.   (line  263)
! * TARGET_BUILTIN_SETJMP_FRAME_VALUE:     Frame Layout.       (line  105)
! * TARGET_C_PREINCLUDE:                   Misc.               (line  362)
! * TARGET_CALL_ARGS:                      Varargs.            (line  127)
  * TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS: Miscellaneous Register Hooks.
!                                                              (line    7)
! * TARGET_CALLEE_COPIES:                  Register Arguments. (line  130)
! * TARGET_CAN_ELIMINATE:                  Elimination.        (line   75)
! * TARGET_CAN_FOLLOW_JUMP:                Misc.               (line  802)
! * TARGET_CAN_INLINE_P:                   Target Attributes.  (line  166)
! * TARGET_CAN_USE_DOLOOP_P:               Misc.               (line  768)
! * TARGET_CANNOT_FORCE_CONST_MEM:         Addressing Modes.   (line  237)
! * TARGET_CANNOT_MODIFY_JUMPS_P:          Misc.               (line  891)
! * TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P:  Register Classes.   (line  604)
! * TARGET_CANONICAL_VA_LIST_TYPE:         Register Arguments. (line  308)
  * TARGET_CANONICALIZE_COMPARISON:        MODE_CC Condition Codes.
!                                                              (line   57)
! * TARGET_CASE_VALUES_THRESHOLD:          Misc.               (line   47)
  * TARGET_CC_MODES_COMPATIBLE:            MODE_CC Condition Codes.
!                                                              (line  122)
! * TARGET_CHECK_PCH_TARGET_FLAGS:         PCH Target.         (line   28)
! * TARGET_CHECK_STRING_OBJECT_FORMAT_ARG: Run-time Target.    (line  121)
! * TARGET_CHKP_BOUND_MODE:                Misc.               (line  700)
! * TARGET_CHKP_BOUND_TYPE:                Misc.               (line  697)
! * TARGET_CHKP_FUNCTION_VALUE_BOUNDS:     Varargs.            (line  188)
! * TARGET_CHKP_INITIALIZE_BOUNDS:         Misc.               (line  709)
! * TARGET_CHKP_MAKE_BOUNDS_CONSTANT:      Misc.               (line  704)
! * TARGET_CLASS_LIKELY_SPILLED_P:         Register Classes.   (line  494)
! * TARGET_CLASS_MAX_NREGS:                Register Classes.   (line  511)
! * TARGET_COMMUTATIVE_P:                  Misc.               (line  808)
! * TARGET_COMP_TYPE_ATTRIBUTES:           Target Attributes.  (line   27)
! * TARGET_COMPARE_VERSION_PRIORITY:       Misc.               (line  743)
! * TARGET_CONDITIONAL_REGISTER_USAGE:     Register Basics.    (line   60)
! * TARGET_CONST_ANCHOR:                   Misc.               (line 1124)
! * TARGET_CONST_NOT_OK_FOR_DEBUG_P:       Addressing Modes.   (line  232)
! * TARGET_CONVERT_TO_TYPE:                Misc.               (line 1077)
! * TARGET_CPU_CPP_BUILTINS:               Run-time Target.    (line    9)
! * TARGET_CSTORE_MODE:                    Register Classes.   (line  628)
! * TARGET_CXX_ADJUST_CLASS_AT_DEFINITION: C++ ABI.            (line   87)
! * TARGET_CXX_CDTOR_RETURNS_THIS:         C++ ABI.            (line   38)
! * TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT:   C++ ABI.            (line   62)
! * TARGET_CXX_COOKIE_HAS_SIZE:            C++ ABI.            (line   25)
! * TARGET_CXX_DECL_MANGLING_CONTEXT:      C++ ABI.            (line   93)
! * TARGET_CXX_DETERMINE_CLASS_DATA_VISIBILITY: C++ ABI.       (line   54)
! * TARGET_CXX_GET_COOKIE_SIZE:            C++ ABI.            (line   18)
! * TARGET_CXX_GUARD_MASK_BIT:             C++ ABI.            (line   12)
! * TARGET_CXX_GUARD_TYPE:                 C++ ABI.            (line    7)
! * TARGET_CXX_IMPLICIT_EXTERN_C:          Misc.               (line  374)
! * TARGET_CXX_IMPORT_EXPORT_CLASS:        C++ ABI.            (line   30)
! * TARGET_CXX_KEY_METHOD_MAY_BE_INLINE:   C++ ABI.            (line   43)
! * TARGET_CXX_LIBRARY_RTTI_COMDAT:        C++ ABI.            (line   69)
! * TARGET_CXX_USE_AEABI_ATEXIT:           C++ ABI.            (line   74)
! * TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT:  C++ ABI.            (line   80)
! * TARGET_DEBUG_UNWIND_INFO:              SDB and DWARF.      (line   37)
! * TARGET_DECIMAL_FLOAT_SUPPORTED_P:      Storage Layout.     (line  512)
! * TARGET_DECLSPEC:                       Target Attributes.  (line   73)
! * TARGET_DEFAULT_PACK_STRUCT:            Misc.               (line  448)
! * TARGET_DEFAULT_SHORT_ENUMS:            Type Layout.        (line  130)
! * TARGET_DEFAULT_TARGET_FLAGS:           Run-time Target.    (line   56)
! * TARGET_DEFERRED_OUTPUT_DEFS:           Label Output.       (line  469)
! * TARGET_DELAY_SCHED2:                   SDB and DWARF.      (line   66)
! * TARGET_DELAY_VARTRACK:                 SDB and DWARF.      (line   70)
! * TARGET_DELEGITIMIZE_ADDRESS:           Addressing Modes.   (line  223)
! * TARGET_DIFFERENT_ADDR_DISPLACEMENT_P:  Register Classes.   (line  597)
  * TARGET_DLLIMPORT_DECL_ATTRIBUTES:      Target Attributes.  (line   55)
! * TARGET_DWARF_CALLING_CONVENTION:       SDB and DWARF.      (line   18)
  * TARGET_DWARF_FRAME_REG_MODE:           Exception Region Output.
!                                                              (line  116)
! * TARGET_DWARF_HANDLE_FRAME_UNSPEC:      Frame Layout.       (line  170)
  * TARGET_DWARF_REGISTER_SPAN:            Exception Region Output.
!                                                              (line  107)
! * TARGET_EDOM:                           Library Calls.      (line   60)
! * TARGET_EMUTLS_DEBUG_FORM_TLS_ADDRESS:  Emulated TLS.       (line   68)
! * TARGET_EMUTLS_GET_ADDRESS:             Emulated TLS.       (line   19)
! * TARGET_EMUTLS_REGISTER_COMMON:         Emulated TLS.       (line   24)
! * TARGET_EMUTLS_TMPL_PREFIX:             Emulated TLS.       (line   45)
! * TARGET_EMUTLS_TMPL_SECTION:            Emulated TLS.       (line   36)
! * TARGET_EMUTLS_VAR_ALIGN_FIXED:         Emulated TLS.       (line   63)
! * TARGET_EMUTLS_VAR_FIELDS:              Emulated TLS.       (line   49)
! * TARGET_EMUTLS_VAR_INIT:                Emulated TLS.       (line   57)
! * TARGET_EMUTLS_VAR_PREFIX:              Emulated TLS.       (line   41)
! * TARGET_EMUTLS_VAR_SECTION:             Emulated TLS.       (line   31)
! * TARGET_ENCODE_SECTION_INFO:            Sections.           (line  253)
  * TARGET_ENCODE_SECTION_INFO and address validation: Addressing Modes.
!                                                              (line   83)
! * TARGET_ENCODE_SECTION_INFO usage:      Instruction Output. (line  128)
! * TARGET_END_CALL_ARGS:                  Varargs.            (line  141)
! * TARGET_ENUM_VA_LIST_P:                 Register Arguments. (line  292)
  * TARGET_EXCEPT_UNWIND_INFO:             Exception Region Output.
!                                                              (line   49)
! * TARGET_EXECUTABLE_SUFFIX:              Misc.               (line  865)
! * TARGET_EXPAND_BUILTIN:                 Misc.               (line  616)
! * TARGET_EXPAND_BUILTIN_SAVEREGS:        Varargs.            (line   67)
! * TARGET_EXPAND_TO_RTL_HOOK:             Storage Layout.     (line  518)
  * TARGET_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * TARGET_EXTRA_INCLUDES:                 Misc.               (line  979)
! * TARGET_EXTRA_LIVE_ON_ENTRY:            Tail Calls.         (line   21)
! * TARGET_EXTRA_PRE_INCLUDES:             Misc.               (line  986)
  * TARGET_FIXED_CONDITION_CODE_REGS:      MODE_CC Condition Codes.
!                                                              (line  107)
! * TARGET_FIXED_POINT_SUPPORTED_P:        Storage Layout.     (line  515)
! * target_flags:                          Run-time Target.    (line   52)
  * TARGET_FLAGS_REGNUM:                   MODE_CC Condition Codes.
!                                                              (line  134)
  * TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P: Run-time Target.
!                                                              (line  185)
! * TARGET_FLT_EVAL_METHOD:                Type Layout.        (line  111)
! * TARGET_FN_ABI_VA_LIST:                 Register Arguments. (line  303)
! * TARGET_FOLD_BUILTIN:                   Misc.               (line  726)
! * TARGET_FORCE_AT_COMP_DIR:              SDB and DWARF.      (line   61)
! * TARGET_FORMAT_TYPES:                   Misc.               (line 1006)
! * TARGET_FRAME_POINTER_REQUIRED:         Elimination.        (line    9)
! * TARGET_FUNCTION_ARG:                   Register Arguments. (line   12)
! * TARGET_FUNCTION_ARG_ADVANCE:           Register Arguments. (line  201)
! * TARGET_FUNCTION_ARG_BOUNDARY:          Register Arguments. (line  255)
! * TARGET_FUNCTION_ARG_ROUND_BOUNDARY:    Register Arguments. (line  261)
! * TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P: Target Attributes.  (line   95)
! * TARGET_FUNCTION_INCOMING_ARG:          Register Arguments. (line   74)
! * TARGET_FUNCTION_OK_FOR_SIBCALL:        Tail Calls.         (line    8)
! * TARGET_FUNCTION_VALUE:                 Scalar Return.      (line   11)
! * TARGET_FUNCTION_VALUE_REGNO_P:         Scalar Return.      (line   97)
! * TARGET_GEN_CCMP_FIRST:                 Misc.               (line  933)
! * TARGET_GEN_CCMP_NEXT:                  Misc.               (line  944)
! * TARGET_GENERATE_VERSION_DISPATCHER_BODY: Misc.             (line  760)
! * TARGET_GET_DRAP_RTX:                   Misc.               (line 1107)
! * TARGET_GET_FUNCTION_VERSIONS_DISPATCHER: Misc.             (line  753)
! * TARGET_GET_PCH_VALIDITY:               PCH Target.         (line    7)
! * TARGET_GET_RAW_ARG_MODE:               Aggregate Return.   (line   82)
! * TARGET_GET_RAW_RESULT_MODE:            Aggregate Return.   (line   77)
! * TARGET_GIMPLE_FOLD_BUILTIN:            Misc.               (line  736)
! * TARGET_GIMPLIFY_VA_ARG_EXPR:           Register Arguments. (line  314)
! * TARGET_GOACC_DIM_LIMIT:                Addressing Modes.   (line  448)
! * TARGET_GOACC_FORK_JOIN:                Addressing Modes.   (line  453)
! * TARGET_GOACC_REDUCTION:                Addressing Modes.   (line  463)
! * TARGET_GOACC_VALIDATE_DIMS:            Addressing Modes.   (line  436)
! * TARGET_HANDLE_C_OPTION:                Run-time Target.    (line   75)
! * TARGET_HANDLE_OPTION:                  Run-time Target.    (line   62)
  * TARGET_HARD_REGNO_SCRATCH_OK:          Values in Registers.
!                                                              (line  144)
! * TARGET_HAS_IFUNC_P:                    Misc.               (line 1155)
! * TARGET_HAS_NO_HW_DIVIDE:               Library Calls.      (line   53)
! * TARGET_HAVE_CONDITIONAL_EXECUTION:     Misc.               (line  926)
  * TARGET_HAVE_CTORS_DTORS:               Macros for Initialization.
!                                                              (line   64)
! * TARGET_HAVE_NAMED_SECTIONS:            File Framework.     (line  141)
! * TARGET_HAVE_SRODATA_SECTION:           Sections.           (line  298)
! * TARGET_HAVE_SWITCHABLE_BSS_SECTIONS:   File Framework.     (line  146)
! * TARGET_HAVE_TLS:                       Sections.           (line  318)
! * TARGET_IN_SMALL_DATA_P:                Sections.           (line  294)
! * TARGET_INIT_BUILTINS:                  Misc.               (line  589)
  * TARGET_INIT_DWARF_REG_SIZES_EXTRA:     Exception Region Output.
!                                                              (line  122)
! * TARGET_INIT_LIBFUNCS:                  Library Calls.      (line   16)
! * TARGET_INIT_PIC_REG:                   Register Arguments. (line   93)
! * TARGET_INSERT_ATTRIBUTES:              Target Attributes.  (line   82)
! * TARGET_INSTANTIATE_DECLS:              Storage Layout.     (line  526)
! * TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN: Misc.              (line 1031)
! * TARGET_INVALID_BINARY_OP:              Misc.               (line 1050)
! * TARGET_INVALID_CONVERSION:             Misc.               (line 1037)
! * TARGET_INVALID_PARAMETER_TYPE:         Misc.               (line 1056)
! * TARGET_INVALID_RETURN_TYPE:            Misc.               (line 1063)
! * TARGET_INVALID_UNARY_OP:               Misc.               (line 1043)
! * TARGET_INVALID_WITHIN_DOLOOP:          Misc.               (line  784)
! * TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS: Register Classes.  (line  564)
! * TARGET_KEEP_LEAF_WHEN_PROFILED:        Profiling.          (line   40)
! * TARGET_LEGITIMATE_ADDRESS_P:           Addressing Modes.   (line   50)
! * TARGET_LEGITIMATE_COMBINED_INSN:       Misc.               (line  796)
! * TARGET_LEGITIMATE_CONSTANT_P:          Addressing Modes.   (line  216)
! * TARGET_LEGITIMIZE_ADDRESS:             Addressing Modes.   (line  132)
! * TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT: Register Classes.  (line  614)
! * TARGET_LIB_INT_CMP_BIASED:             Library Calls.      (line   43)
! * TARGET_LIBC_HAS_FUNCTION:              Library Calls.      (line   79)
! * TARGET_LIBCALL_VALUE:                  Scalar Return.      (line   66)
! * TARGET_LIBFUNC_GNU_PREFIX:             Library Calls.      (line   25)
! * TARGET_LIBGCC_CMP_RETURN_MODE:         Storage Layout.     (line  468)
  * TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P: Register Arguments.
!                                                              (line  373)
! * TARGET_LIBGCC_SDATA_SECTION:           Sections.           (line  132)
! * TARGET_LIBGCC_SHIFT_COUNT_MODE:        Storage Layout.     (line  474)
! * TARGET_LOAD_BOUNDS_FOR_ARG:            Varargs.            (line  158)
! * TARGET_LOAD_RETURNED_BOUNDS:           Varargs.            (line  177)
! * TARGET_LOOP_UNROLL_ADJUST:             Misc.               (line  960)
! * TARGET_LRA_P:                          Register Classes.   (line  570)
! * TARGET_MACHINE_DEPENDENT_REORG:        Misc.               (line  574)
! * TARGET_MANGLE_ASSEMBLER_NAME:          Label Output.       (line  360)
! * TARGET_MANGLE_DECL_ASSEMBLER_NAME:     Sections.           (line  243)
! * TARGET_MANGLE_TYPE:                    Storage Layout.     (line  530)
! * TARGET_MAX_ANCHOR_OFFSET:              Anchored Addresses. (line   39)
! * TARGET_MD_ASM_ADJUST:                  Misc.               (line  495)
! * TARGET_MEM_CONSTRAINT:                 Addressing Modes.   (line  109)
  * TARGET_MEM_REF:                        Storage References. (line    6)
! * TARGET_MEMBER_TYPE_FORCES_BLK:         Storage Layout.     (line  421)
! * TARGET_MEMMODEL_CHECK:                 Misc.               (line 1147)
! * TARGET_MEMORY_MOVE_COST:               Costs.              (line   81)
! * TARGET_MERGE_DECL_ATTRIBUTES:          Target Attributes.  (line   47)
! * TARGET_MERGE_TYPE_ATTRIBUTES:          Target Attributes.  (line   39)
! * TARGET_MIN_ANCHOR_OFFSET:              Anchored Addresses. (line   33)
! * TARGET_MIN_DIVISIONS_FOR_RECIP_MUL:    Misc.               (line   92)
! * TARGET_MODE_AFTER:                     Mode Switching.     (line   59)
! * TARGET_MODE_DEPENDENT_ADDRESS_P:       Addressing Modes.   (line  199)
! * TARGET_MODE_EMIT:                      Mode Switching.     (line   44)
! * TARGET_MODE_ENTRY:                     Mode Switching.     (line   65)
! * TARGET_MODE_EXIT:                      Mode Switching.     (line   72)
! * TARGET_MODE_NEEDED:                    Mode Switching.     (line   51)
! * TARGET_MODE_PRIORITY:                  Mode Switching.     (line   79)
! * TARGET_MODE_REP_EXTENDED:              Misc.               (line  177)
! * TARGET_MS_BITFIELD_LAYOUT_P:           Storage Layout.     (line  485)
! * TARGET_MUST_PASS_IN_STACK:             Register Arguments. (line   67)
  * TARGET_MUST_PASS_IN_STACK, and TARGET_FUNCTION_ARG: Register Arguments.
!                                                              (line   57)
! * TARGET_N_FORMAT_TYPES:                 Misc.               (line 1011)
! * TARGET_NARROW_VOLATILE_BITFIELD:       Storage Layout.     (line  412)
! * TARGET_NO_REGISTER_ALLOCATION:         SDB and DWARF.      (line   74)
! * TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P: Costs.             (line  361)
! * TARGET_OBJC_CONSTRUCT_STRING_OBJECT:   Run-time Target.    (line   90)
! * TARGET_OBJC_DECLARE_CLASS_DEFINITION:  Run-time Target.    (line  111)
  * TARGET_OBJC_DECLARE_UNRESOLVED_CLASS_REFERENCE: Run-time Target.
!                                                              (line  106)
! * TARGET_OBJECT_SUFFIX:                  Misc.               (line  860)
! * TARGET_OBJFMT_CPP_BUILTINS:            Run-time Target.    (line   46)
! * TARGET_OFFLOAD_OPTIONS:                Misc.               (line 1191)
  * TARGET_OMIT_STRUCT_RETURN_REG:         Scalar Return.      (line  117)
! * TARGET_OPTAB_SUPPORTED_P:              Costs.              (line  280)
! * TARGET_OPTF:                           Misc.               (line  993)
! * TARGET_OPTION_DEFAULT_PARAMS:          Run-time Target.    (line  161)
! * TARGET_OPTION_FUNCTION_VERSIONS:       Target Attributes.  (line  159)
! * TARGET_OPTION_INIT_STRUCT:             Run-time Target.    (line  158)
! * TARGET_OPTION_OPTIMIZATION_TABLE:      Run-time Target.    (line  144)
! * TARGET_OPTION_OVERRIDE:                Target Attributes.  (line  145)
! * TARGET_OPTION_POST_STREAM_IN:          Target Attributes.  (line  127)
! * TARGET_OPTION_PRAGMA_PARSE:            Target Attributes.  (line  139)
! * TARGET_OPTION_PRINT:                   Target Attributes.  (line  133)
! * TARGET_OPTION_RESTORE:                 Target Attributes.  (line  121)
! * TARGET_OPTION_SAVE:                    Target Attributes.  (line  114)
! * TARGET_OPTION_VALID_ATTRIBUTE_P:       Target Attributes.  (line  102)
! * TARGET_OS_CPP_BUILTINS:                Run-time Target.    (line   42)
! * TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE:  Run-time Target.    (line  127)
! * TARGET_OVERRIDES_FORMAT_ATTRIBUTES:    Misc.               (line 1015)
! * TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT: Misc.            (line 1021)
! * TARGET_OVERRIDES_FORMAT_INIT:          Misc.               (line 1025)
! * TARGET_PASS_BY_REFERENCE:              Register Arguments. (line  118)
! * TARGET_PCH_VALID_P:                    PCH Target.         (line   13)
! * TARGET_POSIX_IO:                       Misc.               (line  519)
! * TARGET_PREFERRED_OUTPUT_RELOAD_CLASS:  Register Classes.   (line  289)
! * TARGET_PREFERRED_RELOAD_CLASS:         Register Classes.   (line  218)
! * TARGET_PREFERRED_RENAME_CLASS:         Register Classes.   (line  206)
! * TARGET_PREPARE_PCH_SAVE:               PCH Target.         (line   35)
! * TARGET_PRETEND_OUTGOING_VARARGS_NAMED: Varargs.            (line  149)
! * TARGET_PROFILE_BEFORE_PROLOGUE:        Sections.           (line  302)
! * TARGET_PROMOTE_FUNCTION_MODE:          Storage Layout.     (line  113)
! * TARGET_PROMOTE_PROTOTYPES:             Stack Arguments.    (line   11)
! * TARGET_PROMOTED_TYPE:                  Misc.               (line 1069)
! * TARGET_PTRMEMFUNC_VBIT_LOCATION:       Type Layout.        (line  258)
! * TARGET_RECORD_OFFLOAD_SYMBOL:          Misc.               (line 1185)
! * TARGET_REF_MAY_ALIAS_ERRNO:            Register Arguments. (line  325)
! * TARGET_REGISTER_MOVE_COST:             Costs.              (line   33)
! * TARGET_REGISTER_PRIORITY:              Register Classes.   (line  575)
! * TARGET_REGISTER_USAGE_LEVELING_P:      Register Classes.   (line  587)
! * TARGET_RELAYOUT_FUNCTION:              Target Attributes.  (line  173)
! * TARGET_RESOLVE_OVERLOADED_BUILTIN:     Misc.               (line  715)
! * TARGET_RETURN_IN_MEMORY:               Aggregate Return.   (line   17)
  * TARGET_RETURN_IN_MSB:                  Scalar Return.      (line  124)
! * TARGET_RETURN_POPS_ARGS:               Stack Arguments.    (line  100)
! * TARGET_RTX_COSTS:                      Costs.              (line  294)
! * TARGET_SCALAR_MODE_SUPPORTED_P:        Register Arguments. (line  332)
! * TARGET_SCHED_ADJUST_COST:              Scheduling.         (line   37)
! * TARGET_SCHED_ADJUST_PRIORITY:          Scheduling.         (line   52)
! * TARGET_SCHED_ALLOC_SCHED_CONTEXT:      Scheduling.         (line  297)
! * TARGET_SCHED_CLEAR_SCHED_CONTEXT:      Scheduling.         (line  312)
! * TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK: Scheduling.     (line  103)
! * TARGET_SCHED_DFA_NEW_CYCLE:            Scheduling.         (line  258)
! * TARGET_SCHED_DFA_POST_ADVANCE_CYCLE:   Scheduling.         (line  174)
! * TARGET_SCHED_DFA_POST_CYCLE_INSN:      Scheduling.         (line  158)
! * TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE:    Scheduling.         (line  167)
! * TARGET_SCHED_DFA_PRE_CYCLE_INSN:       Scheduling.         (line  146)
! * TARGET_SCHED_DISPATCH:                 Scheduling.         (line  366)
! * TARGET_SCHED_DISPATCH_DO:              Scheduling.         (line  371)
! * TARGET_SCHED_EXPOSED_PIPELINE:         Scheduling.         (line  375)
! * TARGET_SCHED_FINISH:                   Scheduling.         (line  123)
! * TARGET_SCHED_FINISH_GLOBAL:            Scheduling.         (line  140)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_BACKTRACK: Scheduling.  (line  237)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_BEGIN: Scheduling.      (line  226)
  * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD: Scheduling.
!                                                              (line  182)
  * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD: Scheduling.
!                                                              (line  211)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_END: Scheduling.        (line  242)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_FINI: Scheduling.       (line  252)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_INIT: Scheduling.       (line  247)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_ISSUE: Scheduling.      (line  232)
! * TARGET_SCHED_FREE_SCHED_CONTEXT:       Scheduling.         (line  316)
! * TARGET_SCHED_FUSION_PRIORITY:          Scheduling.         (line  386)
! * TARGET_SCHED_GEN_SPEC_CHECK:           Scheduling.         (line  339)
! * TARGET_SCHED_H_I_D_EXTENDED:           Scheduling.         (line  292)
! * TARGET_SCHED_INIT:                     Scheduling.         (line  113)
! * TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN: Scheduling.         (line  163)
! * TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN:  Scheduling.         (line  155)
! * TARGET_SCHED_INIT_GLOBAL:              Scheduling.         (line  132)
! * TARGET_SCHED_INIT_SCHED_CONTEXT:       Scheduling.         (line  302)
! * TARGET_SCHED_IS_COSTLY_DEPENDENCE:     Scheduling.         (line  269)
! * TARGET_SCHED_ISSUE_RATE:               Scheduling.         (line   12)
! * TARGET_SCHED_MACRO_FUSION_P:           Scheduling.         (line   88)
! * TARGET_SCHED_MACRO_FUSION_PAIR_P:      Scheduling.         (line   93)
! * TARGET_SCHED_NEEDS_BLOCK_P:            Scheduling.         (line  332)
! * TARGET_SCHED_REASSOCIATION_WIDTH:      Scheduling.         (line  381)
! * TARGET_SCHED_REORDER:                  Scheduling.         (line   60)
! * TARGET_SCHED_REORDER2:                 Scheduling.         (line   77)
! * TARGET_SCHED_SET_SCHED_CONTEXT:        Scheduling.         (line  308)
! * TARGET_SCHED_SET_SCHED_FLAGS:          Scheduling.         (line  351)
! * TARGET_SCHED_SMS_RES_MII:              Scheduling.         (line  357)
! * TARGET_SCHED_SPECULATE_INSN:           Scheduling.         (line  320)
! * TARGET_SCHED_VARIABLE_ISSUE:           Scheduling.         (line   24)
! * TARGET_SECONDARY_RELOAD:               Register Classes.   (line  318)
! * TARGET_SECTION_TYPE_FLAGS:             File Framework.     (line  152)
! * TARGET_SET_CURRENT_FUNCTION:           Misc.               (line  842)
! * TARGET_SET_DEFAULT_TYPE_ATTRIBUTES:    Target Attributes.  (line   34)
! * TARGET_SET_UP_BY_PROLOGUE:             Tail Calls.         (line   31)
! * TARGET_SETUP_INCOMING_VARARG_BOUNDS:   Varargs.            (line  195)
! * TARGET_SETUP_INCOMING_VARARGS:         Varargs.            (line   76)
! * TARGET_SHIFT_TRUNCATION_MASK:          Misc.               (line  140)
! * TARGET_SIMD_CLONE_ADJUST:              Addressing Modes.   (line  425)
  * TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN: Addressing Modes.
!                                                              (line  418)
! * TARGET_SIMD_CLONE_USABLE:              Addressing Modes.   (line  429)
  * TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P: Register Arguments.
!                                                              (line  381)
! * TARGET_SPILL_CLASS:                    Register Classes.   (line  622)
! * TARGET_SPLIT_COMPLEX_ARG:              Register Arguments. (line  275)
  * TARGET_STACK_PROTECT_FAIL:             Stack Smashing Protection.
!                                                              (line   17)
  * TARGET_STACK_PROTECT_GUARD:            Stack Smashing Protection.
!                                                              (line    7)
! * TARGET_STATIC_CHAIN:                   Frame Registers.    (line   92)
! * TARGET_STORE_BOUNDS_FOR_ARG:           Varargs.            (line  168)
! * TARGET_STORE_RETURNED_BOUNDS:          Varargs.            (line  183)
! * TARGET_STRICT_ARGUMENT_NAMING:         Varargs.            (line  112)
! * TARGET_STRING_OBJECT_REF_TYPE_P:       Run-time Target.    (line  116)
! * TARGET_STRIP_NAME_ENCODING:            Sections.           (line  290)
! * TARGET_STRUCT_VALUE_RTX:               Aggregate Return.   (line   45)
  * TARGET_SUPPORTS_SPLIT_STACK:           Stack Smashing Protection.
!                                                              (line   27)
! * TARGET_SUPPORTS_WEAK:                  Label Output.       (line  276)
! * TARGET_SUPPORTS_WIDE_INT:              Misc.               (line 1200)
  * TARGET_TERMINATE_DW2_EH_FRAME_INFO:    Exception Region Output.
!                                                              (line  101)
! * TARGET_TRAMPOLINE_ADJUST_ADDRESS:      Trampolines.        (line   75)
! * TARGET_TRAMPOLINE_INIT:                Trampolines.        (line   56)
! * TARGET_UNSPEC_MAY_TRAP_P:              Misc.               (line  834)
  * TARGET_UNWIND_TABLES_DEFAULT:          Exception Region Output.
!                                                              (line   75)
! * TARGET_UNWIND_WORD_MODE:               Storage Layout.     (line  480)
! * TARGET_UPDATE_STACK_BOUNDARY:          Misc.               (line 1103)
! * TARGET_USE_ANCHORS_FOR_SYMBOL_P:       Anchored Addresses. (line   55)
! * TARGET_USE_BLOCKS_FOR_CONSTANT_P:      Addressing Modes.   (line  251)
! * TARGET_USE_BLOCKS_FOR_DECL_P:          Addressing Modes.   (line  257)
! * TARGET_USE_BY_PIECES_INFRASTRUCTURE_P: Costs.              (line  167)
! * TARGET_USE_JCR_SECTION:                Misc.               (line 1085)
! * TARGET_USE_PSEUDO_PIC_REG:             Register Arguments. (line   89)
! * TARGET_USES_WEAK_UNWIND_INFO:          Exception Handling. (line  126)
! * TARGET_VALID_DLLIMPORT_ATTRIBUTE_P:    Target Attributes.  (line   68)
! * TARGET_VALID_POINTER_MODE:             Register Arguments. (line  320)
! * TARGET_VECTOR_ALIGNMENT:               Storage Layout.     (line  272)
! * TARGET_VECTOR_MODE_SUPPORTED_P:        Register Arguments. (line  343)
! * TARGET_VECTORIZE_ADD_STMT_COST:        Addressing Modes.   (line  381)
  * TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES: Addressing Modes.
!                                                              (line  355)
! * TARGET_VECTORIZE_BUILTIN_CONVERSION:   Addressing Modes.   (line  311)
! * TARGET_VECTORIZE_BUILTIN_GATHER:       Addressing Modes.   (line  404)
! * TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD: Addressing Modes.  (line  268)
  * TARGET_VECTORIZE_BUILTIN_MD_VECTORIZED_FUNCTION: Addressing Modes.
!                                                              (line  331)
! * TARGET_VECTORIZE_BUILTIN_SCATTER:      Addressing Modes.   (line  411)
  * TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST: Addressing Modes.
!                                                              (line  295)
  * TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION: Addressing Modes.
!                                                              (line  323)
! * TARGET_VECTORIZE_DESTROY_COST_DATA:    Addressing Modes.   (line  398)
! * TARGET_VECTORIZE_FINISH_COST:          Addressing Modes.   (line  392)
! * TARGET_VECTORIZE_GET_MASK_MODE:        Addressing Modes.   (line  363)
! * TARGET_VECTORIZE_INIT_COST:            Addressing Modes.   (line  369)
! * TARGET_VECTORIZE_PREFERRED_SIMD_MODE:  Addressing Modes.   (line  348)
  * TARGET_VECTORIZE_SUPPORT_VECTOR_MISALIGNMENT: Addressing Modes.
!                                                              (line  339)
! * TARGET_VECTORIZE_VEC_PERM_CONST_OK:    Addressing Modes.   (line  307)
  * TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE: Addressing Modes.
!                                                              (line  301)
! * TARGET_VTABLE_DATA_ENTRY_DISTANCE:     Type Layout.        (line  311)
! * TARGET_VTABLE_ENTRY_ALIGN:             Type Layout.        (line  305)
! * TARGET_VTABLE_USES_DESCRIPTORS:        Type Layout.        (line  294)
! * TARGET_WANT_DEBUG_PUB_SECTIONS:        SDB and DWARF.      (line   56)
! * TARGET_WARN_FUNC_RETURN:               Tail Calls.         (line   36)
! * TARGET_WEAK_NOT_IN_ARCHIVE_TOC:        Label Output.       (line  312)
! * targetm:                               Target Structure.   (line    7)
! * targets, makefile:                     Makefile.           (line    6)
! * TCmode:                                Machine Modes.      (line  200)
  * TDmode:                                Machine Modes.      (line   97)
  * TEMPLATE_DECL:                         Declarations.       (line    6)
  * Temporaries:                           Temporaries.        (line    6)
  * termination routines:                  Initialization.     (line    6)
  * testing constraints:                   C Constraint Interface.
                                                               (line    6)
! * TEXT_SECTION_ASM_OP:                   Sections.           (line   38)
  * TFmode:                                Machine Modes.      (line  101)
  * The Language:                          The Language.       (line    6)
  * THEN_CLAUSE:                           Statements for C++. (line    6)
! * THREAD_MODEL_SPEC:                     Driver.             (line  163)
  * THROW_EXPR:                            Unary and Binary Expressions.
                                                               (line    6)
  * THUNK_DECL:                            Declarations.       (line    6)
  * THUNK_DELTA:                           Declarations.       (line    6)
  * TImode:                                Machine Modes.      (line   48)
! * TImode, in insn:                       Insns.              (line  272)
! * TLS_COMMON_ASM_OP:                     Sections.           (line   81)
! * TLS_SECTION_ASM_FLAG:                  Sections.           (line   86)
  * tm.h macros:                           Target Macros.      (line    6)
  * TQFmode:                               Machine Modes.      (line   65)
  * TQmode:                                Machine Modes.      (line  122)
- * TRAMPOLINE_ALIGNMENT:                  Trampolines.        (line   49)
- * TRAMPOLINE_SECTION:                    Trampolines.        (line   40)
- * TRAMPOLINE_SIZE:                       Trampolines.        (line   45)
  * trampolines for nested functions:      Trampolines.        (line    6)
! * TRANSFER_FROM_TRAMPOLINE:              Trampolines.        (line  111)
! * trap instruction pattern:              Standard Names.     (line 1770)
  * tree <1>:                              Macros and Functions.
                                                               (line    6)
- * tree:                                  Tree overview.      (line    6)
  * Tree SSA:                              Tree SSA.           (line    6)
  * TREE_CHAIN:                            Macros and Functions.
                                                               (line    6)
--- 50209,50838 ----
  * subreg and /u:                         Flags.              (line  180)
  * subreg and /u and /v:                  Flags.              (line  170)
  * subreg, in strict_low_part:            RTL Declarations.   (line    9)
! * SUBREG_BYTE:                           Regs and Memory.    (line  285)
  * SUBREG_PROMOTED_UNSIGNED_P:            Flags.              (line  170)
  * SUBREG_PROMOTED_UNSIGNED_SET:          Flags.              (line  180)
  * SUBREG_PROMOTED_VAR_P:                 Flags.              (line  187)
! * SUBREG_REG:                            Regs and Memory.    (line  285)
  * subst iterators in .md files:          Subst Iterators.    (line    6)
! * subvM4 instruction pattern:            Standard Names.     (line  317)
  * SUCCESS_EXIT_CODE:                     Host Misc.          (line   12)
  * SUPPORTS_INIT_PRIORITY:                Macros for Initialization.
!                                                              (line   57)
! * SUPPORTS_ONE_ONLY:                     Label Output.       (line  290)
! * SUPPORTS_WEAK:                         Label Output.       (line  264)
! * SWITCHABLE_TARGET:                     Run-time Target.    (line  164)
  * SWITCH_BODY:                           Statements for C++. (line    6)
  * SWITCH_COND:                           Statements for C++. (line    6)
  * SWITCH_STMT:                           Statements for C++. (line    6)
! * symbolic label:                        Sharing.            (line   20)
! * SYMBOL_FLAG_ANCHOR:                    Special Accessors.  (line  117)
! * SYMBOL_FLAG_EXTERNAL:                  Special Accessors.  (line   99)
! * SYMBOL_FLAG_FUNCTION:                  Special Accessors.  (line   92)
! * SYMBOL_FLAG_HAS_BLOCK_INFO:            Special Accessors.  (line  113)
! * SYMBOL_FLAG_LOCAL:                     Special Accessors.  (line   95)
! * SYMBOL_FLAG_SMALL:                     Special Accessors.  (line  104)
! * SYMBOL_FLAG_TLS_SHIFT:                 Special Accessors.  (line  108)
  * symbol_ref:                            Constants.          (line  117)
  * symbol_ref and /f:                     Flags.              (line  165)
  * symbol_ref and /i:                     Flags.              (line  202)
  * symbol_ref and /u:                     Flags.              (line   10)
  * symbol_ref and /v:                     Flags.              (line  206)
  * symbol_ref, RTL sharing:               Sharing.            (line   20)
! * SYMBOL_REF_ANCHOR_P:                   Special Accessors.  (line  117)
! * SYMBOL_REF_BLOCK:                      Special Accessors.  (line  130)
! * SYMBOL_REF_BLOCK_OFFSET:               Special Accessors.  (line  135)
! * SYMBOL_REF_CONSTANT:                   Special Accessors.  (line   78)
! * SYMBOL_REF_DATA:                       Special Accessors.  (line   82)
! * SYMBOL_REF_DECL:                       Special Accessors.  (line   67)
! * SYMBOL_REF_EXTERNAL_P:                 Special Accessors.  (line   99)
  * SYMBOL_REF_FLAG:                       Flags.              (line  206)
  * SYMBOL_REF_FLAG, in TARGET_ENCODE_SECTION_INFO: Sections.  (line  277)
! * SYMBOL_REF_FLAGS:                      Special Accessors.  (line   86)
! * SYMBOL_REF_FUNCTION_P:                 Special Accessors.  (line   92)
! * SYMBOL_REF_HAS_BLOCK_INFO_P:           Special Accessors.  (line  113)
! * SYMBOL_REF_LOCAL_P:                    Special Accessors.  (line   95)
! * SYMBOL_REF_SMALL_P:                    Special Accessors.  (line  104)
! * SYMBOL_REF_TLS_MODEL:                  Special Accessors.  (line  108)
  * SYMBOL_REF_USED:                       Flags.              (line  197)
  * SYMBOL_REF_WEAK:                       Flags.              (line  202)
! * sync_addMODE instruction pattern:      Standard Names.     (line 1848)
! * sync_andMODE instruction pattern:      Standard Names.     (line 1848)
  * sync_compare_and_swapMODE instruction pattern: Standard Names.
!                                                              (line 1808)
! * sync_iorMODE instruction pattern:      Standard Names.     (line 1848)
! * sync_lock_releaseMODE instruction pattern: Standard Names. (line 1913)
  * sync_lock_test_and_setMODE instruction pattern: Standard Names.
!                                                              (line 1887)
! * sync_nandMODE instruction pattern:     Standard Names.     (line 1848)
! * sync_new_addMODE instruction pattern:  Standard Names.     (line 1880)
! * sync_new_andMODE instruction pattern:  Standard Names.     (line 1880)
! * sync_new_iorMODE instruction pattern:  Standard Names.     (line 1880)
! * sync_new_nandMODE instruction pattern: Standard Names.     (line 1880)
! * sync_new_subMODE instruction pattern:  Standard Names.     (line 1880)
! * sync_new_xorMODE instruction pattern:  Standard Names.     (line 1880)
! * sync_old_addMODE instruction pattern:  Standard Names.     (line 1863)
! * sync_old_andMODE instruction pattern:  Standard Names.     (line 1863)
! * sync_old_iorMODE instruction pattern:  Standard Names.     (line 1863)
! * sync_old_nandMODE instruction pattern: Standard Names.     (line 1863)
! * sync_old_subMODE instruction pattern:  Standard Names.     (line 1863)
! * sync_old_xorMODE instruction pattern:  Standard Names.     (line 1863)
! * sync_subMODE instruction pattern:      Standard Names.     (line 1848)
! * sync_xorMODE instruction pattern:      Standard Names.     (line 1848)
! * SYSROOT_HEADERS_SUFFIX_SPEC:           Driver.             (line  176)
! * SYSROOT_SUFFIX_SPEC:                   Driver.             (line  171)
  * t-TARGET:                              Target Fragment.    (line    6)
  * table jump:                            Basic Blocks.       (line   67)
! * tablejump instruction pattern:         Standard Names.     (line 1478)
  * tag:                                   GTY Options.        (line   88)
  * tagging insns:                         Tagging Insns.      (line    6)
  * tail calls:                            Tail Calls.         (line    6)
! * TAmode:                                Machine Modes.      (line  158)
! * tanM2 instruction pattern:             Standard Names.     (line  685)
  * target attributes:                     Target Attributes.  (line    6)
  * target description macros:             Target Macros.      (line    6)
  * target functions:                      Target Structure.   (line    6)
  * target hooks:                          Target Structure.   (line    6)
  * target makefile fragment:              Target Fragment.    (line    6)
  * target specifications:                 Run-time Target.    (line    6)
! * targetm:                               Target Structure.   (line    6)
! * targets, makefile:                     Makefile.           (line    6)
! * TARGET_ABSOLUTE_BIGGEST_ALIGNMENT:     Storage Layout.     (line  168)
! * TARGET_ADDRESS_COST:                   Costs.              (line  323)
  * TARGET_ADDR_SPACE_ADDRESS_MODE:        Named Address Spaces.
!                                                              (line   42)
  * TARGET_ADDR_SPACE_CONVERT:             Named Address Spaces.
!                                                              (line   89)
  * TARGET_ADDR_SPACE_DEBUG:               Named Address Spaces.
!                                                              (line   99)
  * TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P: Named Address Spaces.
!                                                              (line   59)
  * TARGET_ADDR_SPACE_LEGITIMIZE_ADDRESS:  Named Address Spaces.
!                                                              (line   67)
  * TARGET_ADDR_SPACE_POINTER_MODE:        Named Address Spaces.
!                                                              (line   36)
  * TARGET_ADDR_SPACE_SUBSET_P:            Named Address Spaces.
!                                                              (line   74)
  * TARGET_ADDR_SPACE_VALID_POINTER_MODE:  Named Address Spaces.
!                                                              (line   48)
  * TARGET_ADDR_SPACE_ZERO_ADDRESS_VALID:  Named Address Spaces.
!                                                              (line   83)
! * TARGET_ALIGN_ANON_BITFIELD:            Storage Layout.     (line  402)
! * TARGET_ALLOCATE_INITIAL_VALUE:         Misc.               (line  810)
! * TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS:  Misc.               (line 1107)
! * TARGET_ALWAYS_STRIP_DOTDOT:            Driver.             (line  250)
! * TARGET_ARG_PARTIAL_BYTES:              Register Arguments. (line   95)
  * TARGET_ARM_EABI_UNWINDER:              Exception Region Output.
!                                                              (line  134)
! * TARGET_ARRAY_MODE_SUPPORTED_P:         Register Arguments. (line  345)
! * TARGET_ASAN_SHADOW_OFFSET:             Misc.               (line 1135)
! * TARGET_ASM_ALIGNED_DI_OP:              Data Output.        (line    9)
! * TARGET_ASM_ALIGNED_HI_OP:              Data Output.        (line    7)
! * TARGET_ASM_ALIGNED_SI_OP:              Data Output.        (line    8)
! * TARGET_ASM_ALIGNED_TI_OP:              Data Output.        (line   10)
! * TARGET_ASM_ASSEMBLE_UNDEFINED_DECL:    Label Output.       (line  231)
! * TARGET_ASM_ASSEMBLE_VISIBILITY:        Label Output.       (line  301)
! * TARGET_ASM_BYTE_OP:                    Data Output.        (line    6)
! * TARGET_ASM_CAN_OUTPUT_MI_THUNK:        Function Entry.     (line  202)
! * TARGET_ASM_CLOSE_PAREN:                Data Output.        (line  133)
! * TARGET_ASM_CODE_END:                   File Framework.     (line   57)
  * TARGET_ASM_CONSTRUCTOR:                Macros for Initialization.
!                                                              (line   68)
! * TARGET_ASM_DECLARE_CONSTANT_NAME:      Label Output.       (line  177)
! * TARGET_ASM_DECL_END:                   Data Output.        (line   38)
  * TARGET_ASM_DESTRUCTOR:                 Macros for Initialization.
!                                                              (line   82)
! * TARGET_ASM_EMIT_EXCEPT_PERSONALITY:    Dispatch Tables.    (line   80)
! * TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL:    Dispatch Tables.    (line   73)
! * TARGET_ASM_EMIT_UNWIND_LABEL:          Dispatch Tables.    (line   61)
! * TARGET_ASM_EXTERNAL_LIBCALL:           Label Output.       (line  337)
! * TARGET_ASM_FILE_END:                   File Framework.     (line   35)
! * TARGET_ASM_FILE_START:                 File Framework.     (line    8)
! * TARGET_ASM_FILE_START_APP_OFF:         File Framework.     (line   16)
! * TARGET_ASM_FILE_START_FILE_DIRECTIVE:  File Framework.     (line   29)
! * TARGET_ASM_FINAL_POSTSCAN_INSN:        Instruction Output. (line   82)
! * TARGET_ASM_FUNCTION_BEGIN_EPILOGUE:    Function Entry.     (line   59)
! * TARGET_ASM_FUNCTION_END_PROLOGUE:      Function Entry.     (line   53)
! * TARGET_ASM_FUNCTION_EPILOGUE:          Function Entry.     (line   65)
! * TARGET_ASM_FUNCTION_PROLOGUE:          Function Entry.     (line    9)
! * TARGET_ASM_FUNCTION_RODATA_SECTION:    Sections.           (line  213)
! * TARGET_ASM_FUNCTION_SECTION:           File Framework.     (line  121)
  * TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS: File Framework.
!                                                              (line  131)
! * TARGET_ASM_GLOBALIZE_DECL_NAME:        Label Output.       (line  222)
! * TARGET_ASM_GLOBALIZE_LABEL:            Label Output.       (line  213)
! * TARGET_ASM_INIT_SECTIONS:              Sections.           (line  159)
! * TARGET_ASM_INTEGER:                    Data Output.        (line   25)
! * TARGET_ASM_INTERNAL_LABEL:             Label Output.       (line  380)
! * TARGET_ASM_JUMP_ALIGN_MAX_SKIP:        Alignment Output.   (line   21)
  * TARGET_ASM_LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP: Alignment Output.
!                                                              (line   34)
! * TARGET_ASM_LABEL_ALIGN_MAX_SKIP:       Alignment Output.   (line   68)
! * TARGET_ASM_LOOP_ALIGN_MAX_SKIP:        Alignment Output.   (line   53)
! * TARGET_ASM_LTO_END:                    File Framework.     (line   52)
! * TARGET_ASM_LTO_START:                  File Framework.     (line   47)
! * TARGET_ASM_MARK_DECL_PRESERVED:        Label Output.       (line  343)
! * TARGET_ASM_MERGEABLE_RODATA_PREFIX:    Sections.           (line  221)
! * TARGET_ASM_NAMED_SECTION:              File Framework.     (line  113)
! * TARGET_ASM_OPEN_PAREN:                 Data Output.        (line  132)
! * TARGET_ASM_OUTPUT_ADDR_CONST_EXTRA:    Data Output.        (line   42)
! * TARGET_ASM_OUTPUT_ANCHOR:              Anchored Addresses. (line   42)
! * TARGET_ASM_OUTPUT_DWARF_DTPREL:        SDB and DWARF.      (line  108)
! * TARGET_ASM_OUTPUT_IDENT:               File Framework.     (line  100)
! * TARGET_ASM_OUTPUT_MI_THUNK:            Function Entry.     (line  160)
! * TARGET_ASM_OUTPUT_SOURCE_FILENAME:     File Framework.     (line   91)
! * TARGET_ASM_RECORD_GCC_SWITCHES:        File Framework.     (line  162)
! * TARGET_ASM_RECORD_GCC_SWITCHES_SECTION: File Framework.    (line  207)
! * TARGET_ASM_RELOC_RW_MASK:              Sections.           (line  168)
! * TARGET_ASM_SELECT_RTX_SECTION:         Sections.           (line  230)
! * TARGET_ASM_SELECT_SECTION:             Sections.           (line  179)
! * TARGET_ASM_TM_CLONE_TABLE_SECTION:     Sections.           (line  226)
! * TARGET_ASM_TRAMPOLINE_TEMPLATE:        Trampolines.        (line   28)
  * TARGET_ASM_TTYPE:                      Exception Region Output.
!                                                              (line  128)
! * TARGET_ASM_UNALIGNED_DI_OP:            Data Output.        (line   13)
! * TARGET_ASM_UNALIGNED_HI_OP:            Data Output.        (line   11)
! * TARGET_ASM_UNALIGNED_SI_OP:            Data Output.        (line   12)
! * TARGET_ASM_UNALIGNED_TI_OP:            Data Output.        (line   14)
! * TARGET_ASM_UNIQUE_SECTION:             Sections.           (line  201)
! * TARGET_ASM_UNWIND_EMIT:                Dispatch Tables.    (line   87)
! * TARGET_ASM_UNWIND_EMIT_BEFORE_INSN:    Dispatch Tables.    (line   93)
! * TARGET_ATOMIC_ALIGN_FOR_MODE:          Misc.               (line 1154)
! * TARGET_ATOMIC_ASSIGN_EXPAND_FENV:      Misc.               (line 1160)
! * TARGET_ATOMIC_TEST_AND_SET_TRUEVAL:    Misc.               (line 1145)
! * TARGET_ATTRIBUTE_TABLE:                Target Attributes.  (line   10)
! * TARGET_ATTRIBUTE_TAKES_IDENTIFIER_P:   Target Attributes.  (line   17)
! * TARGET_BINDS_LOCAL_P:                  Sections.           (line  308)
! * TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED: Misc.          (line  907)
! * TARGET_BRANCH_TARGET_REGISTER_CLASS:   Misc.               (line  900)
! * TARGET_BUILD_BUILTIN_VA_LIST:          Register Arguments. (line  285)
  * TARGET_BUILTIN_CHKP_FUNCTION:          Misc.               (line  625)
! * TARGET_BUILTIN_DECL:                   Misc.               (line  604)
! * TARGET_BUILTIN_RECIPROCAL:             Addressing Modes.   (line  261)
! * TARGET_BUILTIN_SETJMP_FRAME_VALUE:     Frame Layout.       (line  103)
! * TARGET_CALLEE_COPIES:                  Register Arguments. (line  127)
! * TARGET_CALL_ARGS:                      Varargs.            (line  123)
  * TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS: Miscellaneous Register Hooks.
!                                                              (line    6)
! * TARGET_CANNOT_FORCE_CONST_MEM:         Addressing Modes.   (line  234)
! * TARGET_CANNOT_MODIFY_JUMPS_P:          Misc.               (line  887)
! * TARGET_CANNOT_SUBSTITUTE_MEM_EQUIV_P:  Register Classes.   (line  597)
  * TARGET_CANONICALIZE_COMPARISON:        MODE_CC Condition Codes.
!                                                              (line   55)
! * TARGET_CANONICAL_VA_LIST_TYPE:         Register Arguments. (line  306)
! * TARGET_CAN_ELIMINATE:                  Elimination.        (line   73)
! * TARGET_CAN_FOLLOW_JUMP:                Misc.               (line  796)
! * TARGET_CAN_INLINE_P:                   Target Attributes.  (line  165)
! * TARGET_CAN_USE_DOLOOP_P:               Misc.               (line  760)
! * TARGET_CASE_VALUES_THRESHOLD:          Misc.               (line   46)
  * TARGET_CC_MODES_COMPATIBLE:            MODE_CC Condition Codes.
!                                                              (line  120)
! * TARGET_CHECK_PCH_TARGET_FLAGS:         PCH Target.         (line   26)
! * TARGET_CHECK_STRING_OBJECT_FORMAT_ARG: Run-time Target.    (line  119)
! * TARGET_CHKP_BOUND_MODE:                Misc.               (line  697)
! * TARGET_CHKP_BOUND_TYPE:                Misc.               (line  695)
! * TARGET_CHKP_FUNCTION_VALUE_BOUNDS:     Varargs.            (line  182)
! * TARGET_CHKP_INITIALIZE_BOUNDS:         Misc.               (line  703)
! * TARGET_CHKP_MAKE_BOUNDS_CONSTANT:      Misc.               (line  699)
! * TARGET_CLASS_LIKELY_SPILLED_P:         Register Classes.   (line  489)
! * TARGET_CLASS_MAX_NREGS:                Register Classes.   (line  505)
! * TARGET_COMMUTATIVE_P:                  Misc.               (line  803)
! * TARGET_COMPARE_VERSION_PRIORITY:       Misc.               (line  737)
! * TARGET_COMP_TYPE_ATTRIBUTES:           Target Attributes.  (line   25)
! * TARGET_CONDITIONAL_REGISTER_USAGE:     Register Basics.    (line   59)
! * TARGET_CONST_ANCHOR:                   Misc.               (line 1118)
! * TARGET_CONST_NOT_OK_FOR_DEBUG_P:       Addressing Modes.   (line  230)
! * TARGET_CONVERT_TO_TYPE:                Misc.               (line 1072)
! * TARGET_CPU_CPP_BUILTINS:               Run-time Target.    (line    8)
! * TARGET_CSTORE_MODE:                    Register Classes.   (line  620)
! * TARGET_CXX_ADJUST_CLASS_AT_DEFINITION: C++ ABI.            (line   86)
! * TARGET_CXX_CDTOR_RETURNS_THIS:         C++ ABI.            (line   37)
! * TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT:   C++ ABI.            (line   61)
! * TARGET_CXX_COOKIE_HAS_SIZE:            C++ ABI.            (line   24)
! * TARGET_CXX_DECL_MANGLING_CONTEXT:      C++ ABI.            (line   92)
! * TARGET_CXX_DETERMINE_CLASS_DATA_VISIBILITY: C++ ABI.       (line   52)
! * TARGET_CXX_GET_COOKIE_SIZE:            C++ ABI.            (line   17)
! * TARGET_CXX_GUARD_MASK_BIT:             C++ ABI.            (line   11)
! * TARGET_CXX_GUARD_TYPE:                 C++ ABI.            (line    6)
! * TARGET_CXX_IMPLICIT_EXTERN_C:          Misc.               (line  373)
! * TARGET_CXX_IMPORT_EXPORT_CLASS:        C++ ABI.            (line   28)
! * TARGET_CXX_KEY_METHOD_MAY_BE_INLINE:   C++ ABI.            (line   42)
! * TARGET_CXX_LIBRARY_RTTI_COMDAT:        C++ ABI.            (line   68)
! * TARGET_CXX_USE_AEABI_ATEXIT:           C++ ABI.            (line   73)
! * TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT:  C++ ABI.            (line   79)
! * TARGET_C_PREINCLUDE:                   Misc.               (line  361)
! * TARGET_DEBUG_UNWIND_INFO:              SDB and DWARF.      (line   36)
! * TARGET_DECIMAL_FLOAT_SUPPORTED_P:      Storage Layout.     (line  507)
! * TARGET_DECLSPEC:                       Target Attributes.  (line   72)
! * TARGET_DEFAULT_PACK_STRUCT:            Misc.               (line  446)
! * TARGET_DEFAULT_SHORT_ENUMS:            Type Layout.        (line  129)
! * TARGET_DEFAULT_TARGET_FLAGS:           Run-time Target.    (line   55)
! * TARGET_DEFERRED_OUTPUT_DEFS:           Label Output.       (line  465)
! * TARGET_DELAY_SCHED2:                   SDB and DWARF.      (line   65)
! * TARGET_DELAY_VARTRACK:                 SDB and DWARF.      (line   69)
! * TARGET_DELEGITIMIZE_ADDRESS:           Addressing Modes.   (line  221)
! * TARGET_DIFFERENT_ADDR_DISPLACEMENT_P:  Register Classes.   (line  590)
  * TARGET_DLLIMPORT_DECL_ATTRIBUTES:      Target Attributes.  (line   55)
! * TARGET_DWARF_CALLING_CONVENTION:       SDB and DWARF.      (line   16)
  * TARGET_DWARF_FRAME_REG_MODE:           Exception Region Output.
!                                                              (line  114)
! * TARGET_DWARF_HANDLE_FRAME_UNSPEC:      Frame Layout.       (line  167)
  * TARGET_DWARF_REGISTER_SPAN:            Exception Region Output.
!                                                              (line  105)
! * TARGET_EDOM:                           Library Calls.      (line   59)
! * TARGET_EMUTLS_DEBUG_FORM_TLS_ADDRESS:  Emulated TLS.       (line   67)
! * TARGET_EMUTLS_GET_ADDRESS:             Emulated TLS.       (line   18)
! * TARGET_EMUTLS_REGISTER_COMMON:         Emulated TLS.       (line   23)
! * TARGET_EMUTLS_TMPL_PREFIX:             Emulated TLS.       (line   44)
! * TARGET_EMUTLS_TMPL_SECTION:            Emulated TLS.       (line   35)
! * TARGET_EMUTLS_VAR_ALIGN_FIXED:         Emulated TLS.       (line   62)
! * TARGET_EMUTLS_VAR_FIELDS:              Emulated TLS.       (line   48)
! * TARGET_EMUTLS_VAR_INIT:                Emulated TLS.       (line   55)
! * TARGET_EMUTLS_VAR_PREFIX:              Emulated TLS.       (line   40)
! * TARGET_EMUTLS_VAR_SECTION:             Emulated TLS.       (line   30)
! * TARGET_ENCODE_SECTION_INFO:            Sections.           (line  251)
  * TARGET_ENCODE_SECTION_INFO and address validation: Addressing Modes.
!                                                              (line   82)
! * TARGET_ENCODE_SECTION_INFO usage:      Instruction Output. (line  127)
! * TARGET_END_CALL_ARGS:                  Varargs.            (line  137)
! * TARGET_ENUM_VA_LIST_P:                 Register Arguments. (line  289)
  * TARGET_EXCEPT_UNWIND_INFO:             Exception Region Output.
!                                                              (line   46)
! * TARGET_EXECUTABLE_SUFFIX:              Misc.               (line  861)
! * TARGET_EXPAND_BUILTIN:                 Misc.               (line  614)
! * TARGET_EXPAND_BUILTIN_SAVEREGS:        Varargs.            (line   64)
! * TARGET_EXPAND_TO_RTL_HOOK:             Storage Layout.     (line  513)
  * TARGET_EXPR:                           Unary and Binary Expressions.
                                                               (line    6)
! * TARGET_EXTRA_INCLUDES:                 Misc.               (line  973)
! * TARGET_EXTRA_LIVE_ON_ENTRY:            Tail Calls.         (line   20)
! * TARGET_EXTRA_PRE_INCLUDES:             Misc.               (line  980)
  * TARGET_FIXED_CONDITION_CODE_REGS:      MODE_CC Condition Codes.
!                                                              (line  105)
! * TARGET_FIXED_POINT_SUPPORTED_P:        Storage Layout.     (line  510)
! * target_flags:                          Run-time Target.    (line   51)
  * TARGET_FLAGS_REGNUM:                   MODE_CC Condition Codes.
!                                                              (line  133)
  * TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P: Run-time Target.
!                                                              (line  183)
! * TARGET_FLT_EVAL_METHOD:                Type Layout.        (line  110)
! * TARGET_FN_ABI_VA_LIST:                 Register Arguments. (line  301)
! * TARGET_FOLD_BUILTIN:                   Misc.               (line  720)
! * TARGET_FORCE_AT_COMP_DIR:              SDB and DWARF.      (line   60)
! * TARGET_FORMAT_TYPES:                   Misc.               (line 1001)
! * TARGET_FRAME_POINTER_REQUIRED:         Elimination.        (line    8)
! * TARGET_FUNCTION_ARG:                   Register Arguments. (line   10)
! * TARGET_FUNCTION_ARG_ADVANCE:           Register Arguments. (line  198)
! * TARGET_FUNCTION_ARG_BOUNDARY:          Register Arguments. (line  252)
! * TARGET_FUNCTION_ARG_ROUND_BOUNDARY:    Register Arguments. (line  258)
! * TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P: Target Attributes.  (line   93)
! * TARGET_FUNCTION_INCOMING_ARG:          Register Arguments. (line   71)
! * TARGET_FUNCTION_OK_FOR_SIBCALL:        Tail Calls.         (line    6)
! * TARGET_FUNCTION_VALUE:                 Scalar Return.      (line    9)
! * TARGET_FUNCTION_VALUE_REGNO_P:         Scalar Return.      (line   96)
! * TARGET_GENERATE_VERSION_DISPATCHER_BODY: Misc.             (line  753)
! * TARGET_GEN_CCMP_FIRST:                 Misc.               (line  927)
! * TARGET_GEN_CCMP_NEXT:                  Misc.               (line  938)
! * TARGET_GET_DRAP_RTX:                   Misc.               (line 1101)
! * TARGET_GET_FUNCTION_VERSIONS_DISPATCHER: Misc.             (line  746)
! * TARGET_GET_PCH_VALIDITY:               PCH Target.         (line    6)
! * TARGET_GET_RAW_ARG_MODE:               Aggregate Return.   (line   81)
! * TARGET_GET_RAW_RESULT_MODE:            Aggregate Return.   (line   76)
! * TARGET_GIMPLE_FOLD_BUILTIN:            Misc.               (line  730)
! * TARGET_GIMPLIFY_VA_ARG_EXPR:           Register Arguments. (line  311)
! * TARGET_GOACC_DIM_LIMIT:                Addressing Modes.   (line  443)
! * TARGET_GOACC_FORK_JOIN:                Addressing Modes.   (line  447)
! * TARGET_GOACC_REDUCTION:                Addressing Modes.   (line  458)
! * TARGET_GOACC_VALIDATE_DIMS:            Addressing Modes.   (line  430)
! * TARGET_HANDLE_C_OPTION:                Run-time Target.    (line   73)
! * TARGET_HANDLE_OPTION:                  Run-time Target.    (line   59)
  * TARGET_HARD_REGNO_SCRATCH_OK:          Values in Registers.
!                                                              (line  141)
! * TARGET_HAS_IFUNC_P:                    Misc.               (line 1149)
! * TARGET_HAS_NO_HW_DIVIDE:               Library Calls.      (line   52)
! * TARGET_HAVE_CONDITIONAL_EXECUTION:     Misc.               (line  921)
  * TARGET_HAVE_CTORS_DTORS:               Macros for Initialization.
!                                                              (line   63)
! * TARGET_HAVE_NAMED_SECTIONS:            File Framework.     (line  139)
! * TARGET_HAVE_SRODATA_SECTION:           Sections.           (line  297)
! * TARGET_HAVE_SWITCHABLE_BSS_SECTIONS:   File Framework.     (line  144)
! * TARGET_HAVE_TLS:                       Sections.           (line  317)
! * TARGET_INIT_BUILTINS:                  Misc.               (line  588)
  * TARGET_INIT_DWARF_REG_SIZES_EXTRA:     Exception Region Output.
!                                                              (line  120)
! * TARGET_INIT_LIBFUNCS:                  Library Calls.      (line   15)
! * TARGET_INIT_PIC_REG:                   Register Arguments. (line   91)
! * TARGET_INSERT_ATTRIBUTES:              Target Attributes.  (line   80)
! * TARGET_INSTANTIATE_DECLS:              Storage Layout.     (line  521)
! * TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN: Misc.              (line 1025)
! * TARGET_INVALID_BINARY_OP:              Misc.               (line 1044)
! * TARGET_INVALID_CONVERSION:             Misc.               (line 1031)
! * TARGET_INVALID_PARAMETER_TYPE:         Misc.               (line 1050)
! * TARGET_INVALID_RETURN_TYPE:            Misc.               (line 1057)
! * TARGET_INVALID_UNARY_OP:               Misc.               (line 1037)
! * TARGET_INVALID_WITHIN_DOLOOP:          Misc.               (line  777)
! * TARGET_IN_SMALL_DATA_P:                Sections.           (line  293)
! * TARGET_IRA_CHANGE_PSEUDO_ALLOCNO_CLASS: Register Classes.  (line  557)
! * TARGET_KEEP_LEAF_WHEN_PROFILED:        Profiling.          (line   39)
! * TARGET_LEGITIMATE_ADDRESS_P:           Addressing Modes.   (line   48)
! * TARGET_LEGITIMATE_COMBINED_INSN:       Misc.               (line  791)
! * TARGET_LEGITIMATE_CONSTANT_P:          Addressing Modes.   (line  213)
! * TARGET_LEGITIMIZE_ADDRESS:             Addressing Modes.   (line  129)
! * TARGET_LEGITIMIZE_ADDRESS_DISPLACEMENT: Register Classes.  (line  605)
! * TARGET_LIBCALL_VALUE:                  Scalar Return.      (line   65)
! * TARGET_LIBC_HAS_FUNCTION:              Library Calls.      (line   77)
! * TARGET_LIBFUNC_GNU_PREFIX:             Library Calls.      (line   24)
! * TARGET_LIBGCC_CMP_RETURN_MODE:         Storage Layout.     (line  463)
  * TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P: Register Arguments.
!                                                              (line  369)
! * TARGET_LIBGCC_SDATA_SECTION:           Sections.           (line  131)
! * TARGET_LIBGCC_SHIFT_COUNT_MODE:        Storage Layout.     (line  469)
! * TARGET_LIB_INT_CMP_BIASED:             Library Calls.      (line   42)
! * TARGET_LOAD_BOUNDS_FOR_ARG:            Varargs.            (line  153)
! * TARGET_LOAD_RETURNED_BOUNDS:           Varargs.            (line  172)
! * TARGET_LOOP_UNROLL_ADJUST:             Misc.               (line  954)
! * TARGET_LRA_P:                          Register Classes.   (line  564)
! * TARGET_MACHINE_DEPENDENT_REORG:        Misc.               (line  573)
! * TARGET_MANGLE_ASSEMBLER_NAME:          Label Output.       (line  356)
! * TARGET_MANGLE_DECL_ASSEMBLER_NAME:     Sections.           (line  241)
! * TARGET_MANGLE_TYPE:                    Storage Layout.     (line  525)
! * TARGET_MAX_ANCHOR_OFFSET:              Anchored Addresses. (line   38)
! * TARGET_MD_ASM_ADJUST:                  Misc.               (line  491)
! * TARGET_MEMBER_TYPE_FORCES_BLK:         Storage Layout.     (line  415)
! * TARGET_MEMMODEL_CHECK:                 Misc.               (line 1140)
! * TARGET_MEMORY_MOVE_COST:               Costs.              (line   79)
! * TARGET_MEM_CONSTRAINT:                 Addressing Modes.   (line  107)
  * TARGET_MEM_REF:                        Storage References. (line    6)
! * TARGET_MERGE_DECL_ATTRIBUTES:          Target Attributes.  (line   45)
! * TARGET_MERGE_TYPE_ATTRIBUTES:          Target Attributes.  (line   37)
! * TARGET_MIN_ANCHOR_OFFSET:              Anchored Addresses. (line   32)
! * TARGET_MIN_DIVISIONS_FOR_RECIP_MUL:    Misc.               (line   90)
! * TARGET_MODE_AFTER:                     Mode Switching.     (line   57)
! * TARGET_MODE_DEPENDENT_ADDRESS_P:       Addressing Modes.   (line  196)
! * TARGET_MODE_EMIT:                      Mode Switching.     (line   42)
! * TARGET_MODE_ENTRY:                     Mode Switching.     (line   64)
! * TARGET_MODE_EXIT:                      Mode Switching.     (line   71)
! * TARGET_MODE_NEEDED:                    Mode Switching.     (line   50)
! * TARGET_MODE_PRIORITY:                  Mode Switching.     (line   78)
! * TARGET_MODE_REP_EXTENDED:              Misc.               (line  175)
! * TARGET_MS_BITFIELD_LAYOUT_P:           Storage Layout.     (line  479)
! * TARGET_MUST_PASS_IN_STACK:             Register Arguments. (line   64)
  * TARGET_MUST_PASS_IN_STACK, and TARGET_FUNCTION_ARG: Register Arguments.
!                                                              (line   56)
! * TARGET_NARROW_VOLATILE_BITFIELD:       Storage Layout.     (line  408)
! * TARGET_NO_REGISTER_ALLOCATION:         SDB and DWARF.      (line   73)
! * TARGET_NO_SPECULATION_IN_DELAY_SLOTS_P: Costs.             (line  359)
! * TARGET_N_FORMAT_TYPES:                 Misc.               (line 1006)
! * TARGET_OBJC_CONSTRUCT_STRING_OBJECT:   Run-time Target.    (line   88)
! * TARGET_OBJC_DECLARE_CLASS_DEFINITION:  Run-time Target.    (line  109)
  * TARGET_OBJC_DECLARE_UNRESOLVED_CLASS_REFERENCE: Run-time Target.
!                                                              (line  104)
! * TARGET_OBJECT_SUFFIX:                  Misc.               (line  856)
! * TARGET_OBJFMT_CPP_BUILTINS:            Run-time Target.    (line   45)
! * TARGET_OFFLOAD_OPTIONS:                Misc.               (line 1183)
  * TARGET_OMIT_STRUCT_RETURN_REG:         Scalar Return.      (line  117)
! * TARGET_OPTAB_SUPPORTED_P:              Costs.              (line  278)
! * TARGET_OPTF:                           Misc.               (line  988)
! * TARGET_OPTION_DEFAULT_PARAMS:          Run-time Target.    (line  160)
! * TARGET_OPTION_FUNCTION_VERSIONS:       Target Attributes.  (line  157)
! * TARGET_OPTION_INIT_STRUCT:             Run-time Target.    (line  156)
! * TARGET_OPTION_OPTIMIZATION_TABLE:      Run-time Target.    (line  142)
! * TARGET_OPTION_OVERRIDE:                Target Attributes.  (line  144)
! * TARGET_OPTION_POST_STREAM_IN:          Target Attributes.  (line  125)
! * TARGET_OPTION_PRAGMA_PARSE:            Target Attributes.  (line  137)
! * TARGET_OPTION_PRINT:                   Target Attributes.  (line  131)
! * TARGET_OPTION_RESTORE:                 Target Attributes.  (line  119)
! * TARGET_OPTION_SAVE:                    Target Attributes.  (line  112)
! * TARGET_OPTION_VALID_ATTRIBUTE_P:       Target Attributes.  (line  100)
! * TARGET_OS_CPP_BUILTINS:                Run-time Target.    (line   41)
! * TARGET_OVERRIDES_FORMAT_ATTRIBUTES:    Misc.               (line 1010)
! * TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT: Misc.            (line 1016)
! * TARGET_OVERRIDES_FORMAT_INIT:          Misc.               (line 1020)
! * TARGET_OVERRIDE_OPTIONS_AFTER_CHANGE:  Run-time Target.    (line  126)
! * TARGET_PASS_BY_REFERENCE:              Register Arguments. (line  115)
! * TARGET_PCH_VALID_P:                    PCH Target.         (line   11)
! * TARGET_POSIX_IO:                       Misc.               (line  517)
! * TARGET_PREFERRED_OUTPUT_RELOAD_CLASS:  Register Classes.   (line  284)
! * TARGET_PREFERRED_RELOAD_CLASS:         Register Classes.   (line  213)
! * TARGET_PREFERRED_RENAME_CLASS:         Register Classes.   (line  201)
! * TARGET_PREPARE_PCH_SAVE:               PCH Target.         (line   34)
! * TARGET_PRETEND_OUTGOING_VARARGS_NAMED: Varargs.            (line  144)
! * TARGET_PROFILE_BEFORE_PROLOGUE:        Sections.           (line  301)
! * TARGET_PROMOTED_TYPE:                  Misc.               (line 1064)
! * TARGET_PROMOTE_FUNCTION_MODE:          Storage Layout.     (line  109)
! * TARGET_PROMOTE_PROTOTYPES:             Stack Arguments.    (line   10)
! * TARGET_PTRMEMFUNC_VBIT_LOCATION:       Type Layout.        (line  256)
! * TARGET_RECORD_OFFLOAD_SYMBOL:          Misc.               (line 1178)
! * TARGET_REF_MAY_ALIAS_ERRNO:            Register Arguments. (line  322)
! * TARGET_REGISTER_MOVE_COST:             Costs.              (line   31)
! * TARGET_REGISTER_PRIORITY:              Register Classes.   (line  569)
! * TARGET_REGISTER_USAGE_LEVELING_P:      Register Classes.   (line  580)
! * TARGET_RELAYOUT_FUNCTION:              Target Attributes.  (line  172)
! * TARGET_RESOLVE_OVERLOADED_BUILTIN:     Misc.               (line  709)
! * TARGET_RETURN_IN_MEMORY:               Aggregate Return.   (line   15)
  * TARGET_RETURN_IN_MSB:                  Scalar Return.      (line  124)
! * TARGET_RETURN_POPS_ARGS:               Stack Arguments.    (line   98)
! * TARGET_RTX_COSTS:                      Costs.              (line  292)
! * TARGET_SCALAR_MODE_SUPPORTED_P:        Register Arguments. (line  329)
! * TARGET_SCHED_ADJUST_COST:              Scheduling.         (line   35)
! * TARGET_SCHED_ADJUST_PRIORITY:          Scheduling.         (line   50)
! * TARGET_SCHED_ALLOC_SCHED_CONTEXT:      Scheduling.         (line  294)
! * TARGET_SCHED_CLEAR_SCHED_CONTEXT:      Scheduling.         (line  309)
! * TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK: Scheduling.     (line  101)
! * TARGET_SCHED_DFA_NEW_CYCLE:            Scheduling.         (line  255)
! * TARGET_SCHED_DFA_POST_ADVANCE_CYCLE:   Scheduling.         (line  172)
! * TARGET_SCHED_DFA_POST_CYCLE_INSN:      Scheduling.         (line  156)
! * TARGET_SCHED_DFA_PRE_ADVANCE_CYCLE:    Scheduling.         (line  165)
! * TARGET_SCHED_DFA_PRE_CYCLE_INSN:       Scheduling.         (line  144)
! * TARGET_SCHED_DISPATCH:                 Scheduling.         (line  363)
! * TARGET_SCHED_DISPATCH_DO:              Scheduling.         (line  368)
! * TARGET_SCHED_EXPOSED_PIPELINE:         Scheduling.         (line  372)
! * TARGET_SCHED_FINISH:                   Scheduling.         (line  122)
! * TARGET_SCHED_FINISH_GLOBAL:            Scheduling.         (line  137)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_BACKTRACK: Scheduling.  (line  235)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_BEGIN: Scheduling.      (line  223)
  * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD: Scheduling.
!                                                              (line  179)
  * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD: Scheduling.
!                                                              (line  207)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_END: Scheduling.        (line  240)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_FINI: Scheduling.       (line  250)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_INIT: Scheduling.       (line  245)
! * TARGET_SCHED_FIRST_CYCLE_MULTIPASS_ISSUE: Scheduling.      (line  229)
! * TARGET_SCHED_FREE_SCHED_CONTEXT:       Scheduling.         (line  313)
! * TARGET_SCHED_FUSION_PRIORITY:          Scheduling.         (line  382)
! * TARGET_SCHED_GEN_SPEC_CHECK:           Scheduling.         (line  335)
! * TARGET_SCHED_H_I_D_EXTENDED:           Scheduling.         (line  289)
! * TARGET_SCHED_INIT:                     Scheduling.         (line  111)
! * TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN: Scheduling.         (line  161)
! * TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN:  Scheduling.         (line  153)
! * TARGET_SCHED_INIT_GLOBAL:              Scheduling.         (line  129)
! * TARGET_SCHED_INIT_SCHED_CONTEXT:       Scheduling.         (line  298)
! * TARGET_SCHED_ISSUE_RATE:               Scheduling.         (line   11)
! * TARGET_SCHED_IS_COSTLY_DEPENDENCE:     Scheduling.         (line  267)
! * TARGET_SCHED_MACRO_FUSION_P:           Scheduling.         (line   87)
! * TARGET_SCHED_MACRO_FUSION_PAIR_P:      Scheduling.         (line   91)
! * TARGET_SCHED_NEEDS_BLOCK_P:            Scheduling.         (line  328)
! * TARGET_SCHED_REASSOCIATION_WIDTH:      Scheduling.         (line  377)
! * TARGET_SCHED_REORDER:                  Scheduling.         (line   58)
! * TARGET_SCHED_REORDER2:                 Scheduling.         (line   75)
! * TARGET_SCHED_SET_SCHED_CONTEXT:        Scheduling.         (line  305)
! * TARGET_SCHED_SET_SCHED_FLAGS:          Scheduling.         (line  347)
! * TARGET_SCHED_SMS_RES_MII:              Scheduling.         (line  354)
! * TARGET_SCHED_SPECULATE_INSN:           Scheduling.         (line  316)
! * TARGET_SCHED_VARIABLE_ISSUE:           Scheduling.         (line   22)
! * TARGET_SECONDARY_RELOAD:               Register Classes.   (line  312)
! * TARGET_SECTION_TYPE_FLAGS:             File Framework.     (line  149)
! * TARGET_SETUP_INCOMING_VARARGS:         Varargs.            (line   71)
! * TARGET_SETUP_INCOMING_VARARG_BOUNDS:   Varargs.            (line  188)
! * TARGET_SET_CURRENT_FUNCTION:           Misc.               (line  838)
! * TARGET_SET_DEFAULT_TYPE_ATTRIBUTES:    Target Attributes.  (line   33)
! * TARGET_SET_UP_BY_PROLOGUE:             Tail Calls.         (line   29)
! * TARGET_SHIFT_TRUNCATION_MASK:          Misc.               (line  138)
! * TARGET_SIMD_CLONE_ADJUST:              Addressing Modes.   (line  420)
  * TARGET_SIMD_CLONE_COMPUTE_VECSIZE_AND_SIMDLEN: Addressing Modes.
!                                                              (line  412)
! * TARGET_SIMD_CLONE_USABLE:              Addressing Modes.   (line  424)
  * TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P: Register Arguments.
!                                                              (line  377)
! * TARGET_SPILL_CLASS:                    Register Classes.   (line  613)
! * TARGET_SPLIT_COMPLEX_ARG:              Register Arguments. (line  273)
  * TARGET_STACK_PROTECT_FAIL:             Stack Smashing Protection.
!                                                              (line   16)
  * TARGET_STACK_PROTECT_GUARD:            Stack Smashing Protection.
!                                                              (line    6)
! * TARGET_STATIC_CHAIN:                   Frame Registers.    (line   90)
! * TARGET_STORE_BOUNDS_FOR_ARG:           Varargs.            (line  163)
! * TARGET_STORE_RETURNED_BOUNDS:          Varargs.            (line  177)
! * TARGET_STRICT_ARGUMENT_NAMING:         Varargs.            (line  107)
! * TARGET_STRING_OBJECT_REF_TYPE_P:       Run-time Target.    (line  114)
! * TARGET_STRIP_NAME_ENCODING:            Sections.           (line  288)
! * TARGET_STRUCT_VALUE_RTX:               Aggregate Return.   (line   44)
  * TARGET_SUPPORTS_SPLIT_STACK:           Stack Smashing Protection.
!                                                              (line   25)
! * TARGET_SUPPORTS_WEAK:                  Label Output.       (line  272)
! * TARGET_SUPPORTS_WIDE_INT:              Misc.               (line 1191)
  * TARGET_TERMINATE_DW2_EH_FRAME_INFO:    Exception Region Output.
!                                                              (line   99)
! * TARGET_TRAMPOLINE_ADJUST_ADDRESS:      Trampolines.        (line   74)
! * TARGET_TRAMPOLINE_INIT:                Trampolines.        (line   54)
! * TARGET_UNSPEC_MAY_TRAP_P:              Misc.               (line  829)
  * TARGET_UNWIND_TABLES_DEFAULT:          Exception Region Output.
!                                                              (line   73)
! * TARGET_UNWIND_WORD_MODE:               Storage Layout.     (line  475)
! * TARGET_UPDATE_STACK_BOUNDARY:          Misc.               (line 1097)
! * TARGET_USES_WEAK_UNWIND_INFO:          Exception Handling. (line  123)
! * TARGET_USE_ANCHORS_FOR_SYMBOL_P:       Anchored Addresses. (line   53)
! * TARGET_USE_BLOCKS_FOR_CONSTANT_P:      Addressing Modes.   (line  248)
! * TARGET_USE_BLOCKS_FOR_DECL_P:          Addressing Modes.   (line  255)
! * TARGET_USE_BY_PIECES_INFRASTRUCTURE_P: Costs.              (line  164)
! * TARGET_USE_JCR_SECTION:                Misc.               (line 1079)
! * TARGET_USE_PSEUDO_PIC_REG:             Register Arguments. (line   87)
! * TARGET_VALID_DLLIMPORT_ATTRIBUTE_P:    Target Attributes.  (line   66)
! * TARGET_VALID_POINTER_MODE:             Register Arguments. (line  317)
! * TARGET_VECTORIZE_ADD_STMT_COST:        Addressing Modes.   (line  375)
  * TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES: Addressing Modes.
!                                                              (line  352)
! * TARGET_VECTORIZE_BUILTIN_CONVERSION:   Addressing Modes.   (line  308)
! * TARGET_VECTORIZE_BUILTIN_GATHER:       Addressing Modes.   (line  398)
! * TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD: Addressing Modes.  (line  266)
  * TARGET_VECTORIZE_BUILTIN_MD_VECTORIZED_FUNCTION: Addressing Modes.
!                                                              (line  328)
! * TARGET_VECTORIZE_BUILTIN_SCATTER:      Addressing Modes.   (line  405)
  * TARGET_VECTORIZE_BUILTIN_VECTORIZATION_COST: Addressing Modes.
!                                                              (line  292)
  * TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION: Addressing Modes.
!                                                              (line  320)
! * TARGET_VECTORIZE_DESTROY_COST_DATA:    Addressing Modes.   (line  393)
! * TARGET_VECTORIZE_FINISH_COST:          Addressing Modes.   (line  386)
! * TARGET_VECTORIZE_GET_MASK_MODE:        Addressing Modes.   (line  360)
! * TARGET_VECTORIZE_INIT_COST:            Addressing Modes.   (line  366)
! * TARGET_VECTORIZE_PREFERRED_SIMD_MODE:  Addressing Modes.   (line  345)
  * TARGET_VECTORIZE_SUPPORT_VECTOR_MISALIGNMENT: Addressing Modes.
!                                                              (line  335)
  * TARGET_VECTORIZE_VECTOR_ALIGNMENT_REACHABLE: Addressing Modes.
!                                                              (line  298)
! * TARGET_VECTORIZE_VEC_PERM_CONST_OK:    Addressing Modes.   (line  304)
! * TARGET_VECTOR_ALIGNMENT:               Storage Layout.     (line  268)
! * TARGET_VECTOR_MODE_SUPPORTED_P:        Register Arguments. (line  340)
! * TARGET_VTABLE_DATA_ENTRY_DISTANCE:     Type Layout.        (line  309)
! * TARGET_VTABLE_ENTRY_ALIGN:             Type Layout.        (line  303)
! * TARGET_VTABLE_USES_DESCRIPTORS:        Type Layout.        (line  292)
! * TARGET_WANT_DEBUG_PUB_SECTIONS:        SDB and DWARF.      (line   55)
! * TARGET_WARN_FUNC_RETURN:               Tail Calls.         (line   35)
! * TARGET_WEAK_NOT_IN_ARCHIVE_TOC:        Label Output.       (line  308)
! * TCmode:                                Machine Modes.      (line  199)
  * TDmode:                                Machine Modes.      (line   97)
  * TEMPLATE_DECL:                         Declarations.       (line    6)
  * Temporaries:                           Temporaries.        (line    6)
  * termination routines:                  Initialization.     (line    6)
  * testing constraints:                   C Constraint Interface.
                                                               (line    6)
! * TEXT_SECTION_ASM_OP:                   Sections.           (line   37)
  * TFmode:                                Machine Modes.      (line  101)
  * The Language:                          The Language.       (line    6)
  * THEN_CLAUSE:                           Statements for C++. (line    6)
! * THREAD_MODEL_SPEC:                     Driver.             (line  162)
  * THROW_EXPR:                            Unary and Binary Expressions.
                                                               (line    6)
  * THUNK_DECL:                            Declarations.       (line    6)
  * THUNK_DELTA:                           Declarations.       (line    6)
  * TImode:                                Machine Modes.      (line   48)
! * TImode, in insn:                       Insns.              (line  268)
! * TLS_COMMON_ASM_OP:                     Sections.           (line   80)
! * TLS_SECTION_ASM_FLAG:                  Sections.           (line   85)
  * tm.h macros:                           Target Macros.      (line    6)
  * TQFmode:                               Machine Modes.      (line   65)
  * TQmode:                                Machine Modes.      (line  122)
  * trampolines for nested functions:      Trampolines.        (line    6)
! * TRAMPOLINE_ALIGNMENT:                  Trampolines.        (line   48)
! * TRAMPOLINE_SECTION:                    Trampolines.        (line   39)
! * TRAMPOLINE_SIZE:                       Trampolines.        (line   44)
! * TRANSFER_FROM_TRAMPOLINE:              Trampolines.        (line  110)
! * trap instruction pattern:              Standard Names.     (line 1759)
! * tree:                                  Tree overview.      (line    6)
  * tree <1>:                              Macros and Functions.
                                                               (line    6)
  * Tree SSA:                              Tree SSA.           (line    6)
  * TREE_CHAIN:                            Macros and Functions.
                                                               (line    6)
*************** Concept Index
*** 51267,51275 ****
                                                               (line    6)
  * TREE_LIST:                             Containers.         (line    6)
  * TREE_OPERAND:                          Expression trees.   (line    6)
  * TREE_PUBLIC <1>:                       Function Properties.
                                                               (line   28)
- * TREE_PUBLIC:                           Function Basics.    (line    6)
  * TREE_PURPOSE:                          Containers.         (line    6)
  * TREE_READONLY:                         Function Properties.
                                                               (line   37)
--- 50853,50861 ----
                                                               (line    6)
  * TREE_LIST:                             Containers.         (line    6)
  * TREE_OPERAND:                          Expression trees.   (line    6)
+ * TREE_PUBLIC:                           Function Basics.    (line    6)
  * TREE_PUBLIC <1>:                       Function Properties.
                                                               (line   28)
  * TREE_PURPOSE:                          Containers.         (line    6)
  * TREE_READONLY:                         Function Properties.
                                                               (line   37)
*************** Concept Index
*** 51287,51321 ****
                                                               (line    6)
  * tree_to_uhwi:                          Constant expressions.
                                                               (line    6)
- * TREE_TYPE <1>:                         Types for C++.      (line    6)
- * TREE_TYPE <2>:                         Function Basics.    (line   47)
- * TREE_TYPE <3>:                         Expression trees.   (line    6)
- * TREE_TYPE <4>:                         Working with declarations.
-                                                              (line   11)
- * TREE_TYPE <5>:                         Types.              (line    6)
  * TREE_TYPE:                             Macros and Functions.
                                                               (line    6)
  * TREE_VALUE:                            Containers.         (line    6)
  * TREE_VEC:                              Containers.         (line    6)
  * TREE_VEC_ELT:                          Containers.         (line    6)
  * TREE_VEC_LENGTH:                       Containers.         (line    6)
! * TRULY_NOOP_TRUNCATION:                 Misc.               (line  163)
  * TRUNC_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * TRUNC_MOD_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
- * truncate:                              Conversions.        (line   38)
- * truncMN2 instruction pattern:          Standard Names.     (line 1125)
- * TRUTH_AND_EXPR:                        Unary and Binary Expressions.
-                                                              (line    6)
  * TRUTH_ANDIF_EXPR:                      Unary and Binary Expressions.
                                                               (line    6)
! * TRUTH_NOT_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
! * TRUTH_OR_EXPR:                         Unary and Binary Expressions.
                                                               (line    6)
  * TRUTH_ORIF_EXPR:                       Unary and Binary Expressions.
                                                               (line    6)
  * TRUTH_XOR_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * TRY_BLOCK:                             Statements for C++. (line    6)
--- 50873,50908 ----
                                                               (line    6)
  * tree_to_uhwi:                          Constant expressions.
                                                               (line    6)
  * TREE_TYPE:                             Macros and Functions.
                                                               (line    6)
+ * TREE_TYPE <1>:                         Types.              (line    6)
+ * TREE_TYPE <2>:                         Working with declarations.
+                                                              (line   11)
+ * TREE_TYPE <3>:                         Expression trees.   (line    6)
+ * TREE_TYPE <4>:                         Expression trees.   (line   17)
+ * TREE_TYPE <5>:                         Function Basics.    (line   47)
+ * TREE_TYPE <6>:                         Types for C++.      (line    6)
  * TREE_VALUE:                            Containers.         (line    6)
  * TREE_VEC:                              Containers.         (line    6)
  * TREE_VEC_ELT:                          Containers.         (line    6)
  * TREE_VEC_LENGTH:                       Containers.         (line    6)
! * TRULY_NOOP_TRUNCATION:                 Misc.               (line  162)
! * truncate:                              Conversions.        (line   38)
! * truncMN2 instruction pattern:          Standard Names.     (line 1119)
  * TRUNC_DIV_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * TRUNC_MOD_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * TRUTH_ANDIF_EXPR:                      Unary and Binary Expressions.
                                                               (line    6)
! * TRUTH_AND_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
! * TRUTH_NOT_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * TRUTH_ORIF_EXPR:                       Unary and Binary Expressions.
                                                               (line    6)
+ * TRUTH_OR_EXPR:                         Unary and Binary Expressions.
+                                                              (line    6)
  * TRUTH_XOR_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * TRY_BLOCK:                             Statements for C++. (line    6)
*************** Concept Index
*** 51327,51433 ****
                                                               (line    6)
  * type:                                  Types.              (line    6)
  * type declaration:                      Declarations.       (line    6)
! * TYPE_ALIGN <1>:                        Types for C++.      (line    6)
  * TYPE_ALIGN:                            Types.              (line    6)
! * TYPE_ARG_TYPES <1>:                    Types for C++.      (line    6)
  * TYPE_ARG_TYPES:                        Types.              (line    6)
! * TYPE_ASM_OP:                           Label Output.       (line   79)
! * TYPE_ATTRIBUTES:                       Attributes.         (line   25)
  * TYPE_BINFO:                            Classes.            (line    6)
! * TYPE_BUILT_IN:                         Types for C++.      (line   68)
  * TYPE_CANONICAL:                        Types.              (line    6)
! * TYPE_CONTEXT <1>:                      Types for C++.      (line    6)
  * TYPE_CONTEXT:                          Types.              (line    6)
  * TYPE_DECL:                             Declarations.       (line    6)
- * TYPE_FIELDS <1>:                       Classes.            (line    6)
- * TYPE_FIELDS <2>:                       Types for C++.      (line    6)
  * TYPE_FIELDS:                           Types.              (line    6)
  * TYPE_HAS_ARRAY_NEW_OPERATOR:           Classes.            (line   96)
  * TYPE_HAS_DEFAULT_CONSTRUCTOR:          Classes.            (line   81)
  * TYPE_HAS_MUTABLE_P:                    Classes.            (line   86)
  * TYPE_HAS_NEW_OPERATOR:                 Classes.            (line   93)
- * TYPE_MAIN_VARIANT <1>:                 Types for C++.      (line    6)
  * TYPE_MAIN_VARIANT:                     Types.              (line    6)
  * TYPE_MAX_VALUE:                        Types.              (line    6)
- * TYPE_METHOD_BASETYPE <1>:              Types for C++.      (line    6)
- * TYPE_METHOD_BASETYPE:                  Types.              (line    6)
  * TYPE_METHODS:                          Classes.            (line    6)
  * TYPE_MIN_VALUE:                        Types.              (line    6)
- * TYPE_NAME <1>:                         Types for C++.      (line    6)
  * TYPE_NAME:                             Types.              (line    6)
  * TYPE_NOTHROW_P:                        Functions for C++.  (line  154)
- * TYPE_OFFSET_BASETYPE <1>:              Types for C++.      (line    6)
  * TYPE_OFFSET_BASETYPE:                  Types.              (line    6)
! * TYPE_OPERAND_FMT:                      Label Output.       (line   90)
  * TYPE_OVERLOADS_ARRAY_REF:              Classes.            (line  104)
  * TYPE_OVERLOADS_ARROW:                  Classes.            (line  107)
  * TYPE_OVERLOADS_CALL_EXPR:              Classes.            (line  100)
  * TYPE_POLYMORPHIC_P:                    Classes.            (line   77)
- * TYPE_PRECISION <1>:                    Types for C++.      (line    6)
  * TYPE_PRECISION:                        Types.              (line    6)
! * TYPE_PTR_P:                            Types for C++.      (line   74)
  * TYPE_PTRDATAMEM_P:                     Types for C++.      (line    6)
! * TYPE_PTRFN_P:                          Types for C++.      (line   78)
! * TYPE_PTROB_P:                          Types for C++.      (line   81)
  * TYPE_PTROBV_P:                         Types for C++.      (line    6)
! * TYPE_QUAL_CONST <1>:                   Types for C++.      (line    6)
  * TYPE_QUAL_CONST:                       Types.              (line    6)
! * TYPE_QUAL_RESTRICT <1>:                Types for C++.      (line    6)
  * TYPE_QUAL_RESTRICT:                    Types.              (line    6)
! * TYPE_QUAL_VOLATILE <1>:                Types for C++.      (line    6)
  * TYPE_QUAL_VOLATILE:                    Types.              (line    6)
  * TYPE_RAISES_EXCEPTIONS:                Functions for C++.  (line  149)
- * TYPE_SIZE <1>:                         Types for C++.      (line    6)
  * TYPE_SIZE:                             Types.              (line    6)
  * TYPE_STRUCTURAL_EQUALITY_P:            Types.              (line    6)
! * TYPE_UNQUALIFIED <1>:                  Types for C++.      (line    6)
  * TYPE_UNQUALIFIED:                      Types.              (line    6)
  * TYPE_VFIELD:                           Classes.            (line    6)
! * TYPENAME_TYPE:                         Types for C++.      (line    6)
! * TYPENAME_TYPE_FULLNAME <1>:            Types for C++.      (line    6)
! * TYPENAME_TYPE_FULLNAME:                Types.              (line    6)
! * TYPEOF_TYPE:                           Types for C++.      (line    6)
! * uaddvM4 instruction pattern:           Standard Names.     (line  324)
! * UDAmode:                               Machine Modes.      (line  171)
! * udiv:                                  Arithmetic.         (line  129)
! * udivM3 instruction pattern:            Standard Names.     (line  305)
! * udivmodM4 instruction pattern:         Standard Names.     (line  582)
! * udot_prodM instruction pattern:        Standard Names.     (line  400)
! * UDQmode:                               Machine Modes.      (line  139)
! * UHAmode:                               Machine Modes.      (line  163)
! * UHQmode:                               Machine Modes.      (line  131)
! * UINT16_TYPE:                           Type Layout.        (line  221)
! * UINT32_TYPE:                           Type Layout.        (line  222)
! * UINT64_TYPE:                           Type Layout.        (line  223)
! * UINT8_TYPE:                            Type Layout.        (line  220)
! * UINT_FAST16_TYPE:                      Type Layout.        (line  237)
! * UINT_FAST32_TYPE:                      Type Layout.        (line  238)
! * UINT_FAST64_TYPE:                      Type Layout.        (line  239)
! * UINT_FAST8_TYPE:                       Type Layout.        (line  236)
! * UINT_LEAST16_TYPE:                     Type Layout.        (line  229)
! * UINT_LEAST32_TYPE:                     Type Layout.        (line  230)
! * UINT_LEAST64_TYPE:                     Type Layout.        (line  231)
! * UINT_LEAST8_TYPE:                      Type Layout.        (line  228)
! * UINTMAX_TYPE:                          Type Layout.        (line  204)
! * UINTPTR_TYPE:                          Type Layout.        (line  241)
! * umaddMN4 instruction pattern:          Standard Names.     (line  529)
! * umax:                                  Arithmetic.         (line  148)
! * umaxM3 instruction pattern:            Standard Names.     (line  305)
! * umin:                                  Arithmetic.         (line  148)
! * uminM3 instruction pattern:            Standard Names.     (line  305)
! * umod:                                  Arithmetic.         (line  135)
! * umodM3 instruction pattern:            Standard Names.     (line  305)
! * umsubMN4 instruction pattern:          Standard Names.     (line  553)
! * umulhisi3 instruction pattern:         Standard Names.     (line  501)
! * umulM3_highpart instruction pattern:   Standard Names.     (line  515)
! * umulqihi3 instruction pattern:         Standard Names.     (line  501)
! * umulsidi3 instruction pattern:         Standard Names.     (line  501)
! * umulvM4 instruction pattern:           Standard Names.     (line  329)
  * unchanging:                            Flags.              (line  296)
  * unchanging, in call_insn:              Flags.              (line   19)
  * unchanging, in jump_insn, call_insn and insn: Flags.       (line   39)
  * unchanging, in mem:                    Flags.              (line  134)
  * unchanging, in subreg:                 Flags.              (line  170)
  * unchanging, in symbol_ref:             Flags.              (line   10)
  * UNEQ_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
--- 50914,51031 ----
                                                               (line    6)
  * type:                                  Types.              (line    6)
  * type declaration:                      Declarations.       (line    6)
! * TYPENAME_TYPE:                         Types for C++.      (line    6)
! * TYPENAME_TYPE_FULLNAME:                Types.              (line    6)
! * TYPENAME_TYPE_FULLNAME <1>:            Types for C++.      (line    6)
! * TYPEOF_TYPE:                           Types for C++.      (line    6)
  * TYPE_ALIGN:                            Types.              (line    6)
! * TYPE_ALIGN <1>:                        Types.              (line   30)
! * TYPE_ALIGN <2>:                        Types for C++.      (line    6)
! * TYPE_ALIGN <3>:                        Types for C++.      (line   44)
  * TYPE_ARG_TYPES:                        Types.              (line    6)
! * TYPE_ARG_TYPES <1>:                    Types for C++.      (line    6)
! * TYPE_ASM_OP:                           Label Output.       (line   76)
! * TYPE_ATTRIBUTES:                       Attributes.         (line   24)
  * TYPE_BINFO:                            Classes.            (line    6)
! * TYPE_BUILT_IN:                         Types for C++.      (line   66)
  * TYPE_CANONICAL:                        Types.              (line    6)
! * TYPE_CANONICAL <1>:                    Types.              (line   41)
  * TYPE_CONTEXT:                          Types.              (line    6)
+ * TYPE_CONTEXT <1>:                      Types for C++.      (line    6)
  * TYPE_DECL:                             Declarations.       (line    6)
  * TYPE_FIELDS:                           Types.              (line    6)
+ * TYPE_FIELDS <1>:                       Types for C++.      (line    6)
+ * TYPE_FIELDS <2>:                       Classes.            (line    6)
  * TYPE_HAS_ARRAY_NEW_OPERATOR:           Classes.            (line   96)
  * TYPE_HAS_DEFAULT_CONSTRUCTOR:          Classes.            (line   81)
  * TYPE_HAS_MUTABLE_P:                    Classes.            (line   86)
  * TYPE_HAS_NEW_OPERATOR:                 Classes.            (line   93)
  * TYPE_MAIN_VARIANT:                     Types.              (line    6)
+ * TYPE_MAIN_VARIANT <1>:                 Types.              (line   19)
+ * TYPE_MAIN_VARIANT <2>:                 Types for C++.      (line    6)
  * TYPE_MAX_VALUE:                        Types.              (line    6)
  * TYPE_METHODS:                          Classes.            (line    6)
+ * TYPE_METHOD_BASETYPE:                  Types.              (line    6)
+ * TYPE_METHOD_BASETYPE <1>:              Types for C++.      (line    6)
  * TYPE_MIN_VALUE:                        Types.              (line    6)
  * TYPE_NAME:                             Types.              (line    6)
+ * TYPE_NAME <1>:                         Types.              (line   33)
+ * TYPE_NAME <2>:                         Types for C++.      (line    6)
+ * TYPE_NAME <3>:                         Types for C++.      (line   47)
  * TYPE_NOTHROW_P:                        Functions for C++.  (line  154)
  * TYPE_OFFSET_BASETYPE:                  Types.              (line    6)
! * TYPE_OFFSET_BASETYPE <1>:              Types for C++.      (line    6)
! * TYPE_OPERAND_FMT:                      Label Output.       (line   87)
  * TYPE_OVERLOADS_ARRAY_REF:              Classes.            (line  104)
  * TYPE_OVERLOADS_ARROW:                  Classes.            (line  107)
  * TYPE_OVERLOADS_CALL_EXPR:              Classes.            (line  100)
  * TYPE_POLYMORPHIC_P:                    Classes.            (line   77)
  * TYPE_PRECISION:                        Types.              (line    6)
! * TYPE_PRECISION <1>:                    Types for C++.      (line    6)
  * TYPE_PTRDATAMEM_P:                     Types for C++.      (line    6)
! * TYPE_PTRDATAMEM_P <1>:                 Types for C++.      (line   69)
! * TYPE_PTRFN_P:                          Types for C++.      (line   76)
  * TYPE_PTROBV_P:                         Types for C++.      (line    6)
! * TYPE_PTROB_P:                          Types for C++.      (line   79)
! * TYPE_PTR_P:                            Types for C++.      (line   72)
  * TYPE_QUAL_CONST:                       Types.              (line    6)
! * TYPE_QUAL_CONST <1>:                   Types for C++.      (line    6)
  * TYPE_QUAL_RESTRICT:                    Types.              (line    6)
! * TYPE_QUAL_RESTRICT <1>:                Types for C++.      (line    6)
  * TYPE_QUAL_VOLATILE:                    Types.              (line    6)
+ * TYPE_QUAL_VOLATILE <1>:                Types for C++.      (line    6)
  * TYPE_RAISES_EXCEPTIONS:                Functions for C++.  (line  149)
  * TYPE_SIZE:                             Types.              (line    6)
+ * TYPE_SIZE <1>:                         Types.              (line   25)
+ * TYPE_SIZE <2>:                         Types for C++.      (line    6)
+ * TYPE_SIZE <3>:                         Types for C++.      (line   39)
  * TYPE_STRUCTURAL_EQUALITY_P:            Types.              (line    6)
! * TYPE_STRUCTURAL_EQUALITY_P <1>:        Types.              (line   77)
  * TYPE_UNQUALIFIED:                      Types.              (line    6)
+ * TYPE_UNQUALIFIED <1>:                  Types for C++.      (line    6)
  * TYPE_VFIELD:                           Classes.            (line    6)
! * uaddvM4 instruction pattern:           Standard Names.     (line  320)
! * UDAmode:                               Machine Modes.      (line  170)
! * udiv:                                  Arithmetic.         (line  130)
! * udivM3 instruction pattern:            Standard Names.     (line  301)
! * udivmodM4 instruction pattern:         Standard Names.     (line  576)
! * udot_prodM instruction pattern:        Standard Names.     (line  396)
! * UDQmode:                               Machine Modes.      (line  138)
! * UHAmode:                               Machine Modes.      (line  162)
! * UHQmode:                               Machine Modes.      (line  130)
! * UINT16_TYPE:                           Type Layout.        (line  220)
! * UINT32_TYPE:                           Type Layout.        (line  221)
! * UINT64_TYPE:                           Type Layout.        (line  222)
! * UINT8_TYPE:                            Type Layout.        (line  219)
! * UINTMAX_TYPE:                          Type Layout.        (line  203)
! * UINTPTR_TYPE:                          Type Layout.        (line  240)
! * UINT_FAST16_TYPE:                      Type Layout.        (line  236)
! * UINT_FAST32_TYPE:                      Type Layout.        (line  237)
! * UINT_FAST64_TYPE:                      Type Layout.        (line  238)
! * UINT_FAST8_TYPE:                       Type Layout.        (line  235)
! * UINT_LEAST16_TYPE:                     Type Layout.        (line  228)
! * UINT_LEAST32_TYPE:                     Type Layout.        (line  229)
! * UINT_LEAST64_TYPE:                     Type Layout.        (line  230)
! * UINT_LEAST8_TYPE:                      Type Layout.        (line  227)
! * umaddMN4 instruction pattern:          Standard Names.     (line  523)
! * umax:                                  Arithmetic.         (line  149)
! * umaxM3 instruction pattern:            Standard Names.     (line  301)
! * umin:                                  Arithmetic.         (line  149)
! * uminM3 instruction pattern:            Standard Names.     (line  301)
! * umod:                                  Arithmetic.         (line  136)
! * umodM3 instruction pattern:            Standard Names.     (line  301)
! * umsubMN4 instruction pattern:          Standard Names.     (line  547)
! * umulhisi3 instruction pattern:         Standard Names.     (line  495)
! * umulM3_highpart instruction pattern:   Standard Names.     (line  509)
! * umulqihi3 instruction pattern:         Standard Names.     (line  495)
! * umulsidi3 instruction pattern:         Standard Names.     (line  495)
! * umulvM4 instruction pattern:           Standard Names.     (line  325)
  * unchanging:                            Flags.              (line  296)
  * unchanging, in call_insn:              Flags.              (line   19)
  * unchanging, in jump_insn, call_insn and insn: Flags.       (line   39)
  * unchanging, in mem:                    Flags.              (line  134)
  * unchanging, in subreg:                 Flags.              (line  170)
+ * unchanging, in subreg <1>:             Flags.              (line  180)
  * unchanging, in symbol_ref:             Flags.              (line   10)
  * UNEQ_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
*************** Concept Index
*** 51435,51602 ****
                                                               (line    6)
  * UNGT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
- * UNION_TYPE <1>:                        Classes.            (line    6)
- * UNION_TYPE:                            Types.              (line    6)
  * unions, returning:                     Interface.          (line   10)
! * UNITS_PER_WORD:                        Storage Layout.     (line   61)
! * UNKNOWN_TYPE <1>:                      Types for C++.      (line    6)
  * UNKNOWN_TYPE:                          Types.              (line    6)
  * UNLE_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * UNLIKELY_EXECUTED_TEXT_SECTION_NAME:   Sections.           (line   49)
  * UNLT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * UNORDERED_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * unshare_all_rtl:                       Sharing.            (line   58)
! * unsigned division:                     Arithmetic.         (line  129)
! * unsigned division with unsigned saturation: Arithmetic.    (line  129)
  * unsigned greater than:                 Comparisons.        (line   64)
  * unsigned less than:                    Comparisons.        (line   68)
! * unsigned minimum and maximum:          Arithmetic.         (line  148)
  * unsigned_fix:                          Conversions.        (line   77)
  * unsigned_float:                        Conversions.        (line   62)
  * unsigned_fract_convert:                Conversions.        (line   97)
  * unsigned_sat_fract:                    Conversions.        (line  103)
  * unspec <1>:                            Constant Definitions.
                                                               (line  111)
! * unspec:                                Side Effects.       (line  300)
  * unspec_volatile <1>:                   Constant Definitions.
                                                               (line   99)
! * unspec_volatile:                       Side Effects.       (line  300)
! * untyped_call instruction pattern:      Standard Names.     (line 1381)
! * untyped_return instruction pattern:    Standard Names.     (line 1445)
  * UPDATE_PATH_HOST_CANONICALIZE (PATH):  Filesystem.         (line   59)
  * update_ssa:                            SSA.                (line   74)
- * update_stmt <1>:                       SSA Operands.       (line    6)
  * update_stmt:                           Manipulating GIMPLE statements.
!                                                              (line  141)
  * update_stmt_if_modified:               Manipulating GIMPLE statements.
!                                                              (line  144)
  * UQQmode:                               Machine Modes.      (line  126)
! * us_ashift:                             Arithmetic.         (line  172)
! * us_minus:                              Arithmetic.         (line   36)
! * us_mult:                               Arithmetic.         (line   92)
! * us_neg:                                Arithmetic.         (line   81)
! * us_plus:                               Arithmetic.         (line   14)
! * us_truncate:                           Conversions.        (line   48)
! * usaddM3 instruction pattern:           Standard Names.     (line  305)
! * usadM instruction pattern:             Standard Names.     (line  409)
! * USAmode:                               Machine Modes.      (line  167)
! * usashlM3 instruction pattern:          Standard Names.     (line  585)
! * usdivM3 instruction pattern:           Standard Names.     (line  305)
  * use:                                   Side Effects.       (line  168)
- * USE_C_ALLOCA:                          Host Misc.          (line   19)
- * USE_LD_AS_NEEDED:                      Driver.             (line  136)
- * USE_LOAD_POST_DECREMENT:               Costs.              (line  234)
- * USE_LOAD_POST_INCREMENT:               Costs.              (line  229)
- * USE_LOAD_PRE_DECREMENT:                Costs.              (line  244)
- * USE_LOAD_PRE_INCREMENT:                Costs.              (line  239)
- * USE_SELECT_SECTION_FOR_FUNCTIONS:      Sections.           (line  194)
- * USE_STORE_POST_DECREMENT:              Costs.              (line  254)
- * USE_STORE_POST_INCREMENT:              Costs.              (line  249)
- * USE_STORE_PRE_DECREMENT:               Costs.              (line  264)
- * USE_STORE_PRE_INCREMENT:               Costs.              (line  259)
  * used:                                  Flags.              (line  314)
  * used, in symbol_ref:                   Flags.              (line  197)
! * user:                                  GTY Options.        (line  235)
  * user gc:                               User GC.            (line    6)
! * USER_LABEL_PREFIX:                     Instruction Output. (line  154)
  * USING_STMT:                            Statements for C++. (line    6)
! * usmaddMN4 instruction pattern:         Standard Names.     (line  537)
! * usmsubMN4 instruction pattern:         Standard Names.     (line  561)
! * usmulhisi3 instruction pattern:        Standard Names.     (line  505)
! * usmulM3 instruction pattern:           Standard Names.     (line  305)
! * usmulqihi3 instruction pattern:        Standard Names.     (line  505)
! * usmulsidi3 instruction pattern:        Standard Names.     (line  505)
! * usnegM2 instruction pattern:           Standard Names.     (line  609)
! * USQmode:                               Machine Modes.      (line  135)
! * ussubM3 instruction pattern:           Standard Names.     (line  305)
! * usubvM4 instruction pattern:           Standard Names.     (line  329)
! * UTAmode:                               Machine Modes.      (line  175)
! * UTQmode:                               Machine Modes.      (line  143)
  * V in constraint:                       Simple Constraints. (line   43)
- * VA_ARG_EXPR:                           Unary and Binary Expressions.
-                                                              (line    6)
  * values, returned by functions:         Scalar Return.      (line    6)
- * VAR_DECL:                              Declarations.       (line    6)
- * var_location:                          Debug Information.  (line   14)
  * varargs implementation:                Varargs.            (line    6)
  * variable:                              Declarations.       (line    6)
  * Variable Location Debug Information in RTL: Debug Information.
                                                               (line    6)
! * vashlM3 instruction pattern:           Standard Names.     (line  601)
! * vashrM3 instruction pattern:           Standard Names.     (line  601)
! * vcond_mask_MN instruction pattern:     Standard Names.     (line  242)
! * vcondMN instruction pattern:           Standard Names.     (line  228)
! * vconduMN instruction pattern:          Standard Names.     (line  239)
! * vec_cmpMN instruction pattern:         Standard Names.     (line  218)
! * vec_cmpuMN instruction pattern:        Standard Names.     (line  225)
  * vec_concat:                            Vector Operations.  (line   28)
  * vec_duplicate:                         Vector Operations.  (line   33)
! * vec_extractM instruction pattern:      Standard Names.     (line  208)
! * vec_initM instruction pattern:         Standard Names.     (line  213)
! * vec_load_lanesMN instruction pattern:  Standard Names.     (line  166)
  * VEC_LSHIFT_EXPR:                       Vectors.            (line    6)
  * vec_merge:                             Vector Operations.  (line   11)
  * VEC_PACK_FIX_TRUNC_EXPR:               Vectors.            (line    6)
  * VEC_PACK_SAT_EXPR:                     Vectors.            (line    6)
! * vec_pack_sfix_trunc_M instruction pattern: Standard Names. (line  445)
! * vec_pack_ssat_M instruction pattern:   Standard Names.     (line  438)
  * VEC_PACK_TRUNC_EXPR:                   Vectors.            (line    6)
! * vec_pack_trunc_M instruction pattern:  Standard Names.     (line  431)
! * vec_pack_ufix_trunc_M instruction pattern: Standard Names. (line  445)
! * vec_pack_usat_M instruction pattern:   Standard Names.     (line  438)
! * vec_perm_constM instruction pattern:   Standard Names.     (line  278)
! * vec_permM instruction pattern:         Standard Names.     (line  260)
  * VEC_RSHIFT_EXPR:                       Vectors.            (line    6)
  * vec_select:                            Vector Operations.  (line   19)
! * vec_setM instruction pattern:          Standard Names.     (line  203)
! * vec_shr_M instruction pattern:         Standard Names.     (line  425)
! * vec_store_lanesMN instruction pattern: Standard Names.     (line  190)
! * VEC_UNPACK_FLOAT_HI_EXPR:              Vectors.            (line    6)
! * VEC_UNPACK_FLOAT_LO_EXPR:              Vectors.            (line    6)
! * VEC_UNPACK_HI_EXPR:                    Vectors.            (line    6)
! * VEC_UNPACK_LO_EXPR:                    Vectors.            (line    6)
  * vec_unpacks_float_hi_M instruction pattern: Standard Names.
!                                                              (line  467)
  * vec_unpacks_float_lo_M instruction pattern: Standard Names.
!                                                              (line  467)
! * vec_unpacks_hi_M instruction pattern:  Standard Names.     (line  452)
! * vec_unpacks_lo_M instruction pattern:  Standard Names.     (line  452)
  * vec_unpacku_float_hi_M instruction pattern: Standard Names.
!                                                              (line  467)
  * vec_unpacku_float_lo_M instruction pattern: Standard Names.
!                                                              (line  467)
! * vec_unpacku_hi_M instruction pattern:  Standard Names.     (line  460)
! * vec_unpacku_lo_M instruction pattern:  Standard Names.     (line  460)
  * VEC_WIDEN_MULT_HI_EXPR:                Vectors.            (line    6)
  * VEC_WIDEN_MULT_LO_EXPR:                Vectors.            (line    6)
  * vec_widen_smult_even_M instruction pattern: Standard Names.
!                                                              (line  476)
! * vec_widen_smult_hi_M instruction pattern: Standard Names.  (line  476)
! * vec_widen_smult_lo_M instruction pattern: Standard Names.  (line  476)
! * vec_widen_smult_odd_M instruction pattern: Standard Names. (line  476)
  * vec_widen_sshiftl_hi_M instruction pattern: Standard Names.
!                                                              (line  487)
  * vec_widen_sshiftl_lo_M instruction pattern: Standard Names.
!                                                              (line  487)
  * vec_widen_umult_even_M instruction pattern: Standard Names.
!                                                              (line  476)
! * vec_widen_umult_hi_M instruction pattern: Standard Names.  (line  476)
! * vec_widen_umult_lo_M instruction pattern: Standard Names.  (line  476)
! * vec_widen_umult_odd_M instruction pattern: Standard Names. (line  476)
  * vec_widen_ushiftl_hi_M instruction pattern: Standard Names.
!                                                              (line  487)
  * vec_widen_ushiftl_lo_M instruction pattern: Standard Names.
!                                                              (line  487)
! * vector:                                Containers.         (line    6)
! * vector operations:                     Vector Operations.  (line    6)
! * VECTOR_CST:                            Constant expressions.
!                                                              (line    6)
! * VECTOR_STORE_FLAG_VALUE:               Misc.               (line  294)
  * verify_flow_info:                      Maintaining the CFG.
!                                                              (line  119)
  * virtual operands:                      SSA Operands.       (line    6)
  * VIRTUAL_INCOMING_ARGS_REGNUM:          Regs and Memory.    (line   59)
  * VIRTUAL_OUTGOING_ARGS_REGNUM:          Regs and Memory.    (line   87)
--- 51033,51202 ----
                                                               (line    6)
  * UNGT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * unions, returning:                     Interface.          (line   10)
! * UNION_TYPE:                            Types.              (line    6)
! * UNION_TYPE <1>:                        Classes.            (line    6)
! * UNITS_PER_WORD:                        Storage Layout.     (line   60)
  * UNKNOWN_TYPE:                          Types.              (line    6)
+ * UNKNOWN_TYPE <1>:                      Types for C++.      (line    6)
  * UNLE_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
! * UNLIKELY_EXECUTED_TEXT_SECTION_NAME:   Sections.           (line   48)
  * UNLT_EXPR:                             Unary and Binary Expressions.
                                                               (line    6)
  * UNORDERED_EXPR:                        Unary and Binary Expressions.
                                                               (line    6)
  * unshare_all_rtl:                       Sharing.            (line   58)
! * unsigned division:                     Arithmetic.         (line  130)
! * unsigned division with unsigned saturation: Arithmetic.    (line  130)
  * unsigned greater than:                 Comparisons.        (line   64)
+ * unsigned greater than <1>:             Comparisons.        (line   72)
  * unsigned less than:                    Comparisons.        (line   68)
! * unsigned less than <1>:                Comparisons.        (line   76)
! * unsigned minimum and maximum:          Arithmetic.         (line  149)
  * unsigned_fix:                          Conversions.        (line   77)
  * unsigned_float:                        Conversions.        (line   62)
  * unsigned_fract_convert:                Conversions.        (line   97)
  * unsigned_sat_fract:                    Conversions.        (line  103)
+ * unspec:                                Side Effects.       (line  299)
  * unspec <1>:                            Constant Definitions.
                                                               (line  111)
! * unspec_volatile:                       Side Effects.       (line  299)
  * unspec_volatile <1>:                   Constant Definitions.
                                                               (line   99)
! * untyped_call instruction pattern:      Standard Names.     (line 1375)
! * untyped_return instruction pattern:    Standard Names.     (line 1438)
  * UPDATE_PATH_HOST_CANONICALIZE (PATH):  Filesystem.         (line   59)
  * update_ssa:                            SSA.                (line   74)
  * update_stmt:                           Manipulating GIMPLE statements.
!                                                              (line  140)
! * update_stmt <1>:                       SSA Operands.       (line    6)
  * update_stmt_if_modified:               Manipulating GIMPLE statements.
!                                                              (line  143)
  * UQQmode:                               Machine Modes.      (line  126)
! * usaddM3 instruction pattern:           Standard Names.     (line  301)
! * usadM instruction pattern:             Standard Names.     (line  405)
! * USAmode:                               Machine Modes.      (line  166)
! * usashlM3 instruction pattern:          Standard Names.     (line  579)
! * usdivM3 instruction pattern:           Standard Names.     (line  301)
  * use:                                   Side Effects.       (line  168)
  * used:                                  Flags.              (line  314)
  * used, in symbol_ref:                   Flags.              (line  197)
! * user:                                  GTY Options.        (line  243)
  * user gc:                               User GC.            (line    6)
! * USER_LABEL_PREFIX:                     Instruction Output. (line  152)
! * USE_C_ALLOCA:                          Host Misc.          (line   19)
! * USE_LD_AS_NEEDED:                      Driver.             (line  135)
! * USE_LOAD_POST_DECREMENT:               Costs.              (line  233)
! * USE_LOAD_POST_INCREMENT:               Costs.              (line  228)
! * USE_LOAD_PRE_DECREMENT:                Costs.              (line  243)
! * USE_LOAD_PRE_INCREMENT:                Costs.              (line  238)
! * USE_SELECT_SECTION_FOR_FUNCTIONS:      Sections.           (line  193)
! * USE_STORE_POST_DECREMENT:              Costs.              (line  253)
! * USE_STORE_POST_INCREMENT:              Costs.              (line  248)
! * USE_STORE_PRE_DECREMENT:               Costs.              (line  263)
! * USE_STORE_PRE_INCREMENT:               Costs.              (line  258)
  * USING_STMT:                            Statements for C++. (line    6)
! * usmaddMN4 instruction pattern:         Standard Names.     (line  531)
! * usmsubMN4 instruction pattern:         Standard Names.     (line  555)
! * usmulhisi3 instruction pattern:        Standard Names.     (line  499)
! * usmulM3 instruction pattern:           Standard Names.     (line  301)
! * usmulqihi3 instruction pattern:        Standard Names.     (line  499)
! * usmulsidi3 instruction pattern:        Standard Names.     (line  499)
! * usnegM2 instruction pattern:           Standard Names.     (line  603)
! * USQmode:                               Machine Modes.      (line  134)
! * ussubM3 instruction pattern:           Standard Names.     (line  301)
! * usubvM4 instruction pattern:           Standard Names.     (line  325)
! * us_ashift:                             Arithmetic.         (line  173)
! * us_minus:                              Arithmetic.         (line   38)
! * us_mult:                               Arithmetic.         (line   93)
! * us_neg:                                Arithmetic.         (line   82)
! * us_plus:                               Arithmetic.         (line   14)
! * us_truncate:                           Conversions.        (line   48)
! * UTAmode:                               Machine Modes.      (line  174)
! * UTQmode:                               Machine Modes.      (line  142)
  * V in constraint:                       Simple Constraints. (line   43)
  * values, returned by functions:         Scalar Return.      (line    6)
  * varargs implementation:                Varargs.            (line    6)
  * variable:                              Declarations.       (line    6)
  * Variable Location Debug Information in RTL: Debug Information.
                                                               (line    6)
! * VAR_DECL:                              Declarations.       (line    6)
! * var_location:                          Debug Information.  (line   14)
! * vashlM3 instruction pattern:           Standard Names.     (line  595)
! * vashrM3 instruction pattern:           Standard Names.     (line  595)
! * VA_ARG_EXPR:                           Unary and Binary Expressions.
!                                                              (line    6)
! * vcondMN instruction pattern:           Standard Names.     (line  227)
! * vconduMN instruction pattern:          Standard Names.     (line  237)
! * vcond_mask_MN instruction pattern:     Standard Names.     (line  240)
! * vector:                                Containers.         (line    6)
! * vector operations:                     Vector Operations.  (line    6)
! * VECTOR_CST:                            Constant expressions.
!                                                              (line    6)
! * VECTOR_STORE_FLAG_VALUE:               Misc.               (line  293)
! * vec_cmpMN instruction pattern:         Standard Names.     (line  217)
! * vec_cmpuMN instruction pattern:        Standard Names.     (line  224)
  * vec_concat:                            Vector Operations.  (line   28)
  * vec_duplicate:                         Vector Operations.  (line   33)
! * vec_extractM instruction pattern:      Standard Names.     (line  207)
! * vec_initM instruction pattern:         Standard Names.     (line  212)
! * vec_load_lanesMN instruction pattern:  Standard Names.     (line  165)
  * VEC_LSHIFT_EXPR:                       Vectors.            (line    6)
  * vec_merge:                             Vector Operations.  (line   11)
  * VEC_PACK_FIX_TRUNC_EXPR:               Vectors.            (line    6)
  * VEC_PACK_SAT_EXPR:                     Vectors.            (line    6)
! * vec_pack_sfix_trunc_M instruction pattern: Standard Names. (line  440)
! * vec_pack_ssat_M instruction pattern:   Standard Names.     (line  433)
  * VEC_PACK_TRUNC_EXPR:                   Vectors.            (line    6)
! * vec_pack_trunc_M instruction pattern:  Standard Names.     (line  426)
! * vec_pack_ufix_trunc_M instruction pattern: Standard Names. (line  440)
! * vec_pack_usat_M instruction pattern:   Standard Names.     (line  433)
! * vec_permM instruction pattern:         Standard Names.     (line  258)
! * vec_perm_constM instruction pattern:   Standard Names.     (line  274)
  * VEC_RSHIFT_EXPR:                       Vectors.            (line    6)
  * vec_select:                            Vector Operations.  (line   19)
! * vec_setM instruction pattern:          Standard Names.     (line  202)
! * vec_shr_M instruction pattern:         Standard Names.     (line  420)
! * vec_store_lanesMN instruction pattern: Standard Names.     (line  189)
  * vec_unpacks_float_hi_M instruction pattern: Standard Names.
!                                                              (line  461)
  * vec_unpacks_float_lo_M instruction pattern: Standard Names.
!                                                              (line  461)
! * vec_unpacks_hi_M instruction pattern:  Standard Names.     (line  447)
! * vec_unpacks_lo_M instruction pattern:  Standard Names.     (line  447)
  * vec_unpacku_float_hi_M instruction pattern: Standard Names.
!                                                              (line  461)
  * vec_unpacku_float_lo_M instruction pattern: Standard Names.
!                                                              (line  461)
! * vec_unpacku_hi_M instruction pattern:  Standard Names.     (line  454)
! * vec_unpacku_lo_M instruction pattern:  Standard Names.     (line  454)
! * VEC_UNPACK_FLOAT_HI_EXPR:              Vectors.            (line    6)
! * VEC_UNPACK_FLOAT_LO_EXPR:              Vectors.            (line    6)
! * VEC_UNPACK_HI_EXPR:                    Vectors.            (line    6)
! * VEC_UNPACK_LO_EXPR:                    Vectors.            (line    6)
  * VEC_WIDEN_MULT_HI_EXPR:                Vectors.            (line    6)
  * VEC_WIDEN_MULT_LO_EXPR:                Vectors.            (line    6)
  * vec_widen_smult_even_M instruction pattern: Standard Names.
!                                                              (line  470)
! * vec_widen_smult_hi_M instruction pattern: Standard Names.  (line  470)
! * vec_widen_smult_lo_M instruction pattern: Standard Names.  (line  470)
! * vec_widen_smult_odd_M instruction pattern: Standard Names. (line  470)
  * vec_widen_sshiftl_hi_M instruction pattern: Standard Names.
!                                                              (line  481)
  * vec_widen_sshiftl_lo_M instruction pattern: Standard Names.
!                                                              (line  481)
  * vec_widen_umult_even_M instruction pattern: Standard Names.
!                                                              (line  470)
! * vec_widen_umult_hi_M instruction pattern: Standard Names.  (line  470)
! * vec_widen_umult_lo_M instruction pattern: Standard Names.  (line  470)
! * vec_widen_umult_odd_M instruction pattern: Standard Names. (line  470)
  * vec_widen_ushiftl_hi_M instruction pattern: Standard Names.
!                                                              (line  481)
  * vec_widen_ushiftl_lo_M instruction pattern: Standard Names.
!                                                              (line  481)
  * verify_flow_info:                      Maintaining the CFG.
!                                                              (line  117)
  * virtual operands:                      SSA Operands.       (line    6)
  * VIRTUAL_INCOMING_ARGS_REGNUM:          Regs and Memory.    (line   59)
  * VIRTUAL_OUTGOING_ARGS_REGNUM:          Regs and Memory.    (line   87)
*************** Concept Index
*** 51604,51615 ****
  * VIRTUAL_STACK_VARS_REGNUM:             Regs and Memory.    (line   69)
  * VLIW:                                  Processor pipeline description.
                                                               (line    6)
! * vlshrM3 instruction pattern:           Standard Names.     (line  601)
  * VMS:                                   Filesystem.         (line   37)
! * VMS_DEBUGGING_INFO:                    VMS Debug.          (line    9)
! * void:                                  Misc.               (line  688)
  * VOID_TYPE:                             Types.              (line    6)
- * VOIDmode:                              Machine Modes.      (line  193)
  * volatil:                               Flags.              (line  328)
  * volatil, in insn, call_insn, jump_insn, code_label, jump_table_data, barrier, and note: Flags.
                                                               (line   44)
--- 51204,51218 ----
  * VIRTUAL_STACK_VARS_REGNUM:             Regs and Memory.    (line   69)
  * VLIW:                                  Processor pipeline description.
                                                               (line    6)
! * VLIW <1>:                              Processor pipeline description.
!                                                              (line  223)
! * vlshrM3 instruction pattern:           Standard Names.     (line  595)
  * VMS:                                   Filesystem.         (line   37)
! * VMS_DEBUGGING_INFO:                    VMS Debug.          (line    8)
! * void:                                  Misc.               (line  686)
! * void <1>:                              Misc.               (line  691)
! * VOIDmode:                              Machine Modes.      (line  192)
  * VOID_TYPE:                             Types.              (line    6)
  * volatil:                               Flags.              (line  328)
  * volatil, in insn, call_insn, jump_insn, code_label, jump_table_data, barrier, and note: Flags.
                                                               (line   44)
*************** Concept Index
*** 51617,52063 ****
  * volatil, in mem, asm_operands, and asm_input: Flags.       (line   76)
  * volatil, in reg:                       Flags.              (line   98)
  * volatil, in subreg:                    Flags.              (line  170)
  * volatil, in symbol_ref:                Flags.              (line  206)
  * volatile memory references:            Flags.              (line  329)
  * volatile, in prefetch:                 Flags.              (line  214)
  * voting between constraint alternatives: Class Preferences. (line    6)
! * vrotlM3 instruction pattern:           Standard Names.     (line  601)
! * vrotrM3 instruction pattern:           Standard Names.     (line  601)
! * walk_dominator_tree:                   SSA.                (line  196)
  * walk_gimple_op:                        Statement and operand traversals.
!                                                              (line   32)
  * walk_gimple_seq:                       Statement and operand traversals.
!                                                              (line   50)
  * walk_gimple_stmt:                      Statement and operand traversals.
!                                                              (line   13)
! * WCHAR_TYPE:                            Type Layout.        (line  172)
! * WCHAR_TYPE_SIZE:                       Type Layout.        (line  180)
! * which_alternative:                     Output Statement.   (line   59)
  * WHILE_BODY:                            Statements for C++. (line    6)
  * WHILE_COND:                            Statements for C++. (line    6)
  * WHILE_STMT:                            Statements for C++. (line    6)
  * whopr:                                 LTO.                (line    6)
! * widen_ssumM3 instruction pattern:      Standard Names.     (line  418)
! * widen_usumM3 instruction pattern:      Standard Names.     (line  419)
! * WIDEST_HARDWARE_FP_SIZE:               Type Layout.        (line  117)
! * window_save instruction pattern:       Standard Names.     (line 1741)
! * WINT_TYPE:                             Type Layout.        (line  185)
! * word_mode:                             Machine Modes.      (line  368)
! * WORD_REGISTER_OPERATIONS:              Misc.               (line   54)
! * WORDS_BIG_ENDIAN:                      Storage Layout.     (line   29)
! * WORDS_BIG_ENDIAN, effect on subreg:    Regs and Memory.    (line  217)
  * wpa:                                   LTO.                (line    6)
! * X in constraint:                       Simple Constraints. (line  124)
  * x-HOST:                                Host Fragment.      (line    6)
! * XCmode:                                Machine Modes.      (line  200)
! * XCOFF_DEBUGGING_INFO:                  DBX Options.        (line   13)
  * XEXP:                                  Accessors.          (line    6)
  * XFmode:                                Machine Modes.      (line   82)
  * XImode:                                Machine Modes.      (line   54)
  * XINT:                                  Accessors.          (line    6)
- * xm-MACHINE.h <1>:                      Host Misc.          (line    6)
  * xm-MACHINE.h:                          Filesystem.         (line    6)
! * xor:                                   Arithmetic.         (line  167)
  * xor, canonicalization of:              Insn Canonicalizations.
!                                                              (line   79)
! * xorM3 instruction pattern:             Standard Names.     (line  305)
  * XSTR:                                  Accessors.          (line    6)
  * XVEC:                                  Accessors.          (line   41)
  * XVECEXP:                               Accessors.          (line   48)
  * XVECLEN:                               Accessors.          (line   44)
  * XWINT:                                 Accessors.          (line    6)
  * zero_extend:                           Conversions.        (line   28)
! * zero_extendMN2 instruction pattern:    Standard Names.     (line 1135)
  * zero_extract:                          Bit-Fields.         (line   30)
  * zero_extract, canonicalization of:     Insn Canonicalizations.
!                                                              (line   88)
  
  
  
  Tag Table:
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  End Tag Table
--- 51220,51667 ----
  * volatil, in mem, asm_operands, and asm_input: Flags.       (line   76)
  * volatil, in reg:                       Flags.              (line   98)
  * volatil, in subreg:                    Flags.              (line  170)
+ * volatil, in subreg <1>:                Flags.              (line  180)
  * volatil, in symbol_ref:                Flags.              (line  206)
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  * volatile, in prefetch:                 Flags.              (line  214)
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!                                                              (line   30)
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!                                                              (line   47)
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!                                                              (line   10)
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!                                                              (line   87)
  
  
  
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! Node: Exception Region Output1579985
! Node: Alignment Output1587079
! Node: Debugging Info1591682
! Node: All Debuggers1592352
! Node: DBX Options1595207
! Node: DBX Hooks1600645
! Node: File Names and DBX1601954
! Node: SDB and DWARF1604066
! Node: VMS Debug1610549
! Node: Floating Point1611136
! Node: Mode Switching1613891
! Node: Target Attributes1618327
! Node: Emulated TLS1627293
! Node: MIPS Coprocessors1630683
! Node: PCH Target1631842
! Node: C++ ABI1633684
! Node: Named Address Spaces1638478
! Node: Misc1643747
! Ref: TARGET_SHIFT_TRUNCATION_MASK1650494
! Node: Host Config1706669
! Node: Host Common1707737
! Node: Filesystem1710111
! Node: Host Misc1714226
! Node: Fragments1716675
! Node: Target Fragment1717870
! Node: Host Fragment1728499
! Node: Collect21728739
! Node: Header Dirs1731375
! Node: Type Information1732798
! Node: GTY Options1736074
! Node: Inheritance and GTY1747321
! Ref: Inheritance and GTY-Footnote-11748886
! Node: User GC1749156
! Node: GGC Roots1752895
! Node: Files1753608
! Node: Invoking the garbage collector1756315
! Node: Troubleshooting1757820
! Node: Plugins1758895
! Node: Plugins loading1760024
! Node: Plugin API1760894
! Node: Plugins pass1768620
! Node: Plugins GC1770591
! Node: Plugins description1772309
! Node: Plugins attr1772845
! Node: Plugins recording1775119
! Node: Plugins gate1775969
! Node: Plugins tracking1776560
! Node: Plugins building1777148
! Node: LTO1778938
! Node: LTO Overview1779810
! Node: LTO object file layout1785637
! Node: IPA1790267
! Node: WHOPR1799232
! Node: Internal flags1803792
! Node: Match and Simplify1805203
! Node: GIMPLE API1806157
! Node: The Language1808952
! Node: Funding1820057
! Node: GNU Project1822556
! Node: Copying1823205
! Node: GNU Free Documentation License1860717
! Node: Contributors1885838
! Node: Option Index1924647
! Node: Concept Index1925524
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/doc/gcj-dbtool.1 gcc-6.5.0/gcc/doc/gcj-dbtool.1
*** gcc-6.4.0/gcc/doc/gcj-dbtool.1	Tue Jul  4 09:08:00 2017
--- gcc-6.5.0/gcc/doc/gcj-dbtool.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCJ-DBTOOL 1"
! .TH GCJ-DBTOOL 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCJ-DBTOOL 1"
! .TH GCJ-DBTOOL 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/gcj.1 gcc-6.5.0/gcc/doc/gcj.1
*** gcc-6.4.0/gcc/doc/gcj.1	Tue Jul  4 09:07:59 2017
--- gcc-6.5.0/gcc/doc/gcj.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCJ 1"
! .TH GCJ 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCJ 1"
! .TH GCJ 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** It is safe to use this option if you are
*** 440,446 ****
  .IP "\fB\-fjni\fR" 4
  .IX Item "-fjni"
  With \fBgcj\fR there are two options for writing native methods: \s-1CNI\s0
! and \s-1JNI. \s0 By default \fBgcj\fR assumes you are using \s-1CNI. \s0 If you are
  compiling a class with native methods, and these methods are implemented
  using \s-1JNI,\s0 then you must use \f(CW\*(C`\-fjni\*(C'\fR.  This option causes
  \&\fBgcj\fR to generate stubs which will invoke the underlying \s-1JNI\s0
--- 436,442 ----
  .IP "\fB\-fjni\fR" 4
  .IX Item "-fjni"
  With \fBgcj\fR there are two options for writing native methods: \s-1CNI\s0
! and \s-1JNI.\s0  By default \fBgcj\fR assumes you are using \s-1CNI.\s0  If you are
  compiling a class with native methods, and these methods are implemented
  using \s-1JNI,\s0 then you must use \f(CW\*(C`\-fjni\*(C'\fR.  This option causes
  \&\fBgcj\fR to generate stubs which will invoke the underlying \s-1JNI\s0
*************** interpreted and compiled code.
*** 490,496 ****
  Note that, at present, \f(CW\*(C`\-findirect\-dispatch\*(C'\fR can only be used
  when compiling \fI.class\fR files.  It will not work when compiling
  from source.  \s-1CNI\s0 also does not yet work with the binary compatibility
! \&\s-1ABI. \s0 These restrictions will be lifted in some future release.
  .Sp
  However, if you compile \s-1CNI\s0 code with the standard \s-1ABI,\s0 you can call
  it from code built with the binary compatibility \s-1ABI.\s0
--- 486,492 ----
  Note that, at present, \f(CW\*(C`\-findirect\-dispatch\*(C'\fR can only be used
  when compiling \fI.class\fR files.  It will not work when compiling
  from source.  \s-1CNI\s0 also does not yet work with the binary compatibility
! \&\s-1ABI.\s0  These restrictions will be lifted in some future release.
  .Sp
  However, if you compile \s-1CNI\s0 code with the standard \s-1ABI,\s0 you can call
  it from code built with the binary compatibility \s-1ABI.\s0
*************** or call methods in the \f(CW\*(C`java.la
*** 517,524 ****
  \&\f(CW\*(C`\-freduced\-reflection\*(C'\fR will result in proper operation with a
  savings in executable code size.
  .Sp
! \&\s-1JNI \s0(\f(CW\*(C`\-fjni\*(C'\fR) and the binary compatibility \s-1ABI
! \&\s0(\f(CW\*(C`\-findirect\-dispatch\*(C'\fR) do not work properly without full
  reflection meta-data.  Because of this, it is an error to use these options
  with \f(CW\*(C`\-freduced\-reflection\*(C'\fR.
  .Sp
--- 513,520 ----
  \&\f(CW\*(C`\-freduced\-reflection\*(C'\fR will result in proper operation with a
  savings in executable code size.
  .Sp
! \&\s-1JNI\s0 (\f(CW\*(C`\-fjni\*(C'\fR) and the binary compatibility \s-1ABI\s0
! (\f(CW\*(C`\-findirect\-dispatch\*(C'\fR) do not work properly without full
  reflection meta-data.  Because of this, it is an error to use these options
  with \f(CW\*(C`\-freduced\-reflection\*(C'\fR.
  .Sp
diff -Nrcpad gcc-6.4.0/gcc/doc/gcj.info gcc-6.5.0/gcc/doc/gcj.info
*** gcc-6.4.0/gcc/doc/gcj.info	Tue Jul  4 09:27:46 2017
--- gcc-6.5.0/gcc/doc/gcj.info	Fri Oct 26 10:07:26 2018
***************
*** 1,5 ****
! This is doc/gcj.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/java/gcj.texi.
  
  Copyright (C) 2001-2016 Free Software Foundation, Inc.
  
--- 1,4 ----
! This is gcj.info, produced by makeinfo version 6.4 from gcj.texi.
  
  Copyright (C) 2001-2016 Free Software Foundation, Inc.
  
*************** is included in the section entitled "GNU
*** 17,25 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * Gcj: (gcj).               Ahead-of-time compiler for the Java language
--- 16,23 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * Gcj: (gcj).               Ahead-of-time compiler for the Java language
*************** START-INFO-DIR-ENTRY
*** 45,50 ****
--- 43,50 ----
                              into one system-wide database.
  END-INFO-DIR-ENTRY
  
+ 
+ 
     Copyright (C) 2001-2016 Free Software Foundation, Inc.
  
     Permission is granted to copy, distribute and/or modify this document
*************** is included in the section entitled "GNU
*** 61,68 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
  
  
  File: gcj.info,  Node: Top,  Next: Copying,  Up: (dir)
--- 61,68 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  
  
  File: gcj.info,  Node: Top,  Next: Copying,  Up: (dir)
*************** File: gcj.info,  Node: Top,  Next: Copyi
*** 70,85 ****
  Introduction
  ************
  
! This manual describes how to use `gcj', the GNU compiler for the Java
! programming language.  `gcj' can generate both `.class' files and
! object files, and it can read both Java source code and `.class' files.
  
  * Menu:
  
  * Copying::             The GNU General Public License
  * GNU Free Documentation License::
                          How you can share and copy this manual
! * Invoking gcj::        Compiler options supported by `gcj'
  * Compatibility::       Compatibility between gcj and other tools for Java
  * Invoking jcf-dump::   Print information about class files
  * Invoking gij::        Interpreting Java bytecodes
--- 70,85 ----
  Introduction
  ************
  
! This manual describes how to use 'gcj', the GNU compiler for the Java
! programming language.  'gcj' can generate both '.class' files and object
! files, and it can read both Java source code and '.class' files.
  
  * Menu:
  
  * Copying::             The GNU General Public License
  * GNU Free Documentation License::
                          How you can share and copy this manual
! * Invoking gcj::        Compiler options supported by 'gcj'
  * Compatibility::       Compatibility between gcj and other tools for Java
  * Invoking jcf-dump::   Print information about class files
  * Invoking gij::        Interpreting Java bytecodes
*************** GNU General Public License
*** 103,109 ****
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
--- 103,109 ----
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
*************** want it, that you can change the softwar
*** 131,139 ****
  free programs, and that you know you can do these things.
  
     To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you
! have certain responsibilities if you distribute copies of the software,
! or if you modify it: responsibilities to respect the freedom of others.
  
     For example, if you distribute copies of such a program, whether
  gratis or for a fee, you must pass on to the recipients the same
--- 131,139 ----
  free programs, and that you know you can do these things.
  
     To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you have
! certain responsibilities if you distribute copies of the software, or if
! you modify it: responsibilities to respect the freedom of others.
  
     For example, if you distribute copies of such a program, whether
  gratis or for a fee, you must pass on to the recipients the same
*************** changed, so that their problems will not
*** 152,167 ****
  authors of previous versions.
  
     Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the
! manufacturer can do so.  This is fundamentally incompatible with the
! aim of protecting users' freedom to change the software.  The
! systematic pattern of such abuse occurs in the area of products for
! individuals to use, which is precisely where it is most unacceptable.
! Therefore, we have designed this version of the GPL to prohibit the
! practice for those products.  If such problems arise substantially in
! other domains, we stand ready to extend this provision to those domains
! in future versions of the GPL, as needed to protect the freedom of
! users.
  
     Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
--- 152,166 ----
  authors of previous versions.
  
     Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the manufacturer
! can do so.  This is fundamentally incompatible with the aim of
! protecting users' freedom to change the software.  The systematic
! pattern of such abuse occurs in the area of products for individuals to
! use, which is precisely where it is most unacceptable.  Therefore, we
! have designed this version of the GPL to prohibit the practice for those
! products.  If such problems arise substantially in other domains, we
! stand ready to extend this provision to those domains in future versions
! of the GPL, as needed to protect the freedom of users.
  
     Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
*************** TERMS AND CONDITIONS
*** 198,205 ****
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it
!      on a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
--- 197,204 ----
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it on
!      a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
*************** TERMS AND CONDITIONS
*** 213,220 ****
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may
!      convey the work under this License, and how to view a copy of this
       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
--- 212,219 ----
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may convey
!      the work under this License, and how to view a copy of this
       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
*************** TERMS AND CONDITIONS
*** 222,229 ****
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any
!      non-source form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
--- 221,228 ----
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any non-source
!      form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
*************** TERMS AND CONDITIONS
*** 234,243 ****
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work
!      with that Major Component, or to implement a Standard Interface
!      for which an implementation is available to the public in source
!      code form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
--- 233,242 ----
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work with
!      that Major Component, or to implement a Standard Interface for
!      which an implementation is available to the public in source code
!      form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
*************** TERMS AND CONDITIONS
*** 245,259 ****
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including
!      scripts to control those activities.  However, it does not include
!      the work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files
!      associated with source files for the work, and the source code for
!      shared libraries and dynamically linked subprograms that the work
!      is specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
--- 244,258 ----
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including scripts
!      to control those activities.  However, it does not include the
!      work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files associated
!      with source files for the work, and the source code for shared
!      libraries and dynamically linked subprograms that the work is
!      specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
*************** TERMS AND CONDITIONS
*** 270,291 ****
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output,
!      given its content, constitutes a covered work.  This License
!      acknowledges your rights of fair use or other equivalent, as
!      provided by copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for
!      you, or provide you with facilities for running those works,
!      provided that you comply with the terms of this License in
!      conveying all material for which you do not control copyright.
!      Those thus making or running the covered works for you must do so
!      exclusively on your behalf, under your direction and control, on
!      terms that prohibit them from making any copies of your
!      copyrighted material outside their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
--- 269,290 ----
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output, given
!      its content, constitutes a covered work.  This License acknowledges
!      your rights of fair use or other equivalent, as provided by
!      copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for you,
!      or provide you with facilities for running those works, provided
!      that you comply with the terms of this License in conveying all
!      material for which you do not control copyright.  Those thus making
!      or running the covered works for you must do so exclusively on your
!      behalf, under your direction and control, on terms that prohibit
!      them from making any copies of your copyrighted material outside
!      their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
*************** TERMS AND CONDITIONS
*** 302,309 ****
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention
!      to limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
--- 301,308 ----
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention to
!      limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
*************** TERMS AND CONDITIONS
*** 373,380 ****
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for
!           as long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
--- 372,379 ----
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for as
!           long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
*************** TERMS AND CONDITIONS
*** 384,415 ****
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of
!           the written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access
!           to the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated
!           by you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to
!           the object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long
!           as needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
- 
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
--- 383,413 ----
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of the
!           written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access to
!           the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated by
!           you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to the
!           object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long as
!           needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
*************** TERMS AND CONDITIONS
*** 417,424 ****
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product
!      is a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
--- 415,422 ----
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product is
!      a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
*************** TERMS AND CONDITIONS
*** 449,459 ****
  
       The requirement to provide Installation Information does not
       include a requirement to continue to provide support service,
!      warranty, or updates for a work that has been modified or
!      installed by the recipient, or for the User Product in which it
!      has been modified or installed.  Access to a network may be denied
!      when the modification itself materially and adversely affects the
!      operation of the network or violates the rules and protocols for
       communication across the network.
  
       Corresponding Source conveyed, and Installation Information
--- 447,457 ----
  
       The requirement to provide Installation Information does not
       include a requirement to continue to provide support service,
!      warranty, or updates for a work that has been modified or installed
!      by the recipient, or for the User Product in which it has been
!      modified or installed.  Access to a network may be denied when the
!      modification itself materially and adversely affects the operation
!      of the network or violates the rules and protocols for
       communication across the network.
  
       Corresponding Source conveyed, and Installation Information
*************** TERMS AND CONDITIONS
*** 483,490 ****
  
       Notwithstanding any other provision of this License, for material
       you add to a covered work, you may (if authorized by the copyright
!      holders of that material) supplement the terms of this License
!      with terms:
  
         a. Disclaiming warranty or limiting liability differently from
            the terms of sections 15 and 16 of this License; or
--- 481,488 ----
  
       Notwithstanding any other provision of this License, for material
       you add to a covered work, you may (if authorized by the copyright
!      holders of that material) supplement the terms of this License with
!      terms:
  
         a. Disclaiming warranty or limiting liability differently from
            the terms of sections 15 and 16 of this License; or
*************** TERMS AND CONDITIONS
*** 494,502 ****
            Legal Notices displayed by works containing it; or
  
         c. Prohibiting misrepresentation of the origin of that material,
!           or requiring that modified versions of such material be
!           marked in reasonable ways as different from the original
!           version; or
  
         d. Limiting the use for publicity purposes of names of licensors
            or authors of the material; or
--- 492,499 ----
            Legal Notices displayed by works containing it; or
  
         c. Prohibiting misrepresentation of the origin of that material,
!           or requiring that modified versions of such material be marked
!           in reasonable ways as different from the original version; or
  
         d. Limiting the use for publicity purposes of names of licensors
            or authors of the material; or
*************** TERMS AND CONDITIONS
*** 515,525 ****
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or
!      conveying under this License, you may add to a covered work
!      material governed by the terms of that license document, provided
!      that the further restriction does not survive such relicensing or
!      conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
--- 512,521 ----
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or conveying
!      under this License, you may add to a covered work material governed
!      by the terms of that license document, provided that the further
!      restriction does not survive such relicensing or conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
*************** TERMS AND CONDITIONS
*** 535,547 ****
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under
!      the third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 531,543 ----
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under the
!      third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** TERMS AND CONDITIONS
*** 553,562 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, you do not qualify to receive new
!      licenses for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
--- 549,558 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, you do not qualify to receive new licenses
!      for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
*************** TERMS AND CONDITIONS
*** 570,576 ****
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!  10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
--- 566,572 ----
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!   10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
*************** TERMS AND CONDITIONS
*** 584,604 ****
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to
!      possession of the Corresponding Source of the work from the
!      predecessor in interest, if the predecessor has it or can get it
!      with reasonable efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for
!      exercise of rights granted under this License, and you may not
!      initiate litigation (including a cross-claim or counterclaim in a
!      lawsuit) alleging that any patent claim is infringed by making,
!      using, selling, offering for sale, or importing the Program or any
!      portion of it.
  
!  11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
--- 580,600 ----
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to possession
!      of the Corresponding Source of the work from the predecessor in
!      interest, if the predecessor has it or can get it with reasonable
!      efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for exercise
!      of rights granted under this License, and you may not initiate
!      litigation (including a cross-claim or counterclaim in a lawsuit)
!      alleging that any patent claim is infringed by making, using,
!      selling, offering for sale, or importing the Program or any portion
!      of it.
  
!   11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
*************** TERMS AND CONDITIONS
*** 618,632 ****
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its
!      contributor version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To
!      "grant" such a patent license to a party means to make such an
!      agreement or commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
--- 614,628 ----
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its contributor
!      version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To "grant"
!      such a patent license to a party means to make such an agreement or
!      commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
*************** TERMS AND CONDITIONS
*** 656,691 ****
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under
!      which you make payment to the third party based on the extent of
!      your activity of conveying the work, and under which the third
!      party grants, to any of the parties who would receive the covered
!      work from you, a discriminatory patent license (a) in connection
!      with copies of the covered work conveyed by you (or copies made
!      from those copies), or (b) primarily for and in connection with
!      specific products or compilations that contain the covered work,
!      unless you entered into that arrangement, or that patent license
!      was granted, prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!  12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order,
!      agreement or otherwise) that contradict the conditions of this
!      License, they do not excuse you from the conditions of this
!      License.  If you cannot convey a covered work so as to satisfy
!      simultaneously your obligations under this License and any other
!      pertinent obligations, then as a consequence you may not convey it
!      at all.  For example, if you agree to terms that obligate you to
!      collect a royalty for further conveying from those to whom you
!      convey the Program, the only way you could satisfy both those
!      terms and this License would be to refrain entirely from conveying
!      the Program.
  
!  13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
--- 652,686 ----
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under which
!      you make payment to the third party based on the extent of your
!      activity of conveying the work, and under which the third party
!      grants, to any of the parties who would receive the covered work
!      from you, a discriminatory patent license (a) in connection with
!      copies of the covered work conveyed by you (or copies made from
!      those copies), or (b) primarily for and in connection with specific
!      products or compilations that contain the covered work, unless you
!      entered into that arrangement, or that patent license was granted,
!      prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!   12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order, agreement
!      or otherwise) that contradict the conditions of this License, they
!      do not excuse you from the conditions of this License.  If you
!      cannot convey a covered work so as to satisfy simultaneously your
!      obligations under this License and any other pertinent obligations,
!      then as a consequence you may not convey it at all.  For example,
!      if you agree to terms that obligate you to collect a royalty for
!      further conveying from those to whom you convey the Program, the
!      only way you could satisfy both those terms and this License would
!      be to refrain entirely from conveying the Program.
  
!   13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
*************** TERMS AND CONDITIONS
*** 696,717 ****
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!  14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.
!      Such new versions will be similar in spirit to the present
!      version, but may differ in detail to address new problems or
!      concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the
!      Free Software Foundation.  If the Program does not specify a
!      version number of the GNU General Public License, you may choose
!      any version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
--- 691,711 ----
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!   14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.  Such
!      new versions will be similar in spirit to the present version, but
!      may differ in detail to address new problems or concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the Free
!      Software Foundation.  If the Program does not specify a version
!      number of the GNU General Public License, you may choose any
!      version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
*************** TERMS AND CONDITIONS
*** 723,746 ****
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!  15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!  16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
!      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
--- 717,740 ----
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!   15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!   16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
!      DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
*************** TERMS AND CONDITIONS
*** 748,754 ****
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!  17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
--- 742,748 ----
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!   17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
*************** TERMS AND CONDITIONS
*** 757,763 ****
       connection with the Program, unless a warranty or assumption of
       liability accompanies a copy of the Program in return for a fee.
  
- 
  END OF TERMS AND CONDITIONS
  ===========================
  
--- 751,756 ----
*************** state the exclusion of warranty; and eac
*** 788,794 ****
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see `http://www.gnu.org/licenses/'.
  
     Also add information on how to contact you by electronic and paper
  mail.
--- 781,787 ----
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
     Also add information on how to contact you by electronic and paper
  mail.
*************** mail.
*** 797,807 ****
  notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type `show c' for details.
  
!    The hypothetical commands `show w' and `show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
--- 790,800 ----
  notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type 'show c' for details.
  
!    The hypothetical commands 'show w' and 'show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
*************** use an "about box".
*** 809,822 ****
     You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see `http://www.gnu.org/licenses/'.
  
     The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read `http://www.gnu.org/philosophy/why-not-lgpl.html'.
  
  
  File: gcj.info,  Node: GNU Free Documentation License,  Next: Invoking gcj,  Prev: Copying,  Up: Top
--- 802,815 ----
     You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see <http://www.gnu.org/licenses/>.
  
     The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
  
  
  File: gcj.info,  Node: GNU Free Documentation License,  Next: Invoking gcj,  Prev: Copying,  Up: Top
*************** GNU Free Documentation License
*** 827,833 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 820,826 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 852,872 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 845,865 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 884,895 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 877,888 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 900,926 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 893,919 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 958,965 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 951,958 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 973,984 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 966,976 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 986,1025 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 978,1016 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 1049,1079 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 1040,1069 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 1086,1096 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 1076,1086 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 1099,1113 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 1089,1103 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 1117,1124 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 1107,1114 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 1145,1164 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 1135,1154 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 1203,1210 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 1193,1200 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 1216,1248 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 1206,1238 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 1272,1278 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 1262,1267 ----
*************** notices just after the title page:
*** 1289,1295 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 1278,1284 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 1300,1308 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: gcj.info,  Node: Invoking gcj,  Next: Compatibility,  Prev: GNU Free Documentation License,  Up: Top
--- 1289,1297 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: gcj.info,  Node: Invoking gcj,  Next: Compatibility,  Prev: GNU Free Documentation License,  Up: Top
*************** File: gcj.info,  Node: Invoking gcj,  Ne
*** 1310,1318 ****
  1 Invoking gcj
  **************
  
! As `gcj' is just another front end to `gcc', it supports many of the
  same options as gcc.  *Note Option Summary: (gcc)Option Summary.  This
! manual only documents the options specific to `gcj'.
  
  * Menu:
  
--- 1299,1307 ----
  1 Invoking gcj
  **************
  
! As 'gcj' is just another front end to 'gcc', it supports many of the
  same options as gcc.  *Note Option Summary: (gcc)Option Summary.  This
! manual only documents the options specific to 'gcj'.
  
  * Menu:
  
*************** File: gcj.info,  Node: Input and output
*** 1330,1370 ****
  1.1 Input and output files
  ==========================
  
! A `gcj' command is like a `gcc' command, in that it consists of a
! number of options and file names.  The following kinds of input file
! names are supported:
  
! `FILE.java'
       Java source files.
! 
! `FILE.class'
       Java bytecode files.
! 
! `FILE.zip'
! `FILE.jar'
!      An archive containing one or more `.class' files, all of which are
       compiled.  The archive may be compressed.  Files in an archive
!      which don't end with `.class' are treated as resource files; they
!      are compiled into the resulting object file as `core:' URLs.
! 
! `@FILE'
       A file containing a whitespace-separated list of input file names.
!      (Currently, these must all be `.java' source files, but that may
       change.)  Each named file is compiled, just as if it had been on
       the command line.
  
! `LIBRARY.a'
! `LIBRARY.so'
! `-lLIBNAME'
!      Libraries to use when linking.  See the `gcc' manual.
! 
!    You can specify more than one input file on the `gcj' command line,
! in which case they will all be compiled.  If you specify a `-o FILENAME'
  option, all the input files will be compiled together, producing a
  single output file, named FILENAME.  This is allowed even when using
! `-S' or `-c', but not when using `-C' or `--resource'.  (This is an
! extension beyond the what plain `gcc' allows.)  (If more than one input
! file is specified, all must currently be `.java' files, though we hope
  to fix this.)
  
  
--- 1319,1355 ----
  1.1 Input and output files
  ==========================
  
! A 'gcj' command is like a 'gcc' command, in that it consists of a number
! of options and file names.  The following kinds of input file names are
! supported:
  
! 'FILE.java'
       Java source files.
! 'FILE.class'
       Java bytecode files.
! 'FILE.zip'
! 'FILE.jar'
!      An archive containing one or more '.class' files, all of which are
       compiled.  The archive may be compressed.  Files in an archive
!      which don't end with '.class' are treated as resource files; they
!      are compiled into the resulting object file as 'core:' URLs.
! '@FILE'
       A file containing a whitespace-separated list of input file names.
!      (Currently, these must all be '.java' source files, but that may
       change.)  Each named file is compiled, just as if it had been on
       the command line.
+ 'LIBRARY.a'
+ 'LIBRARY.so'
+ '-lLIBNAME'
+      Libraries to use when linking.  See the 'gcc' manual.
  
!    You can specify more than one input file on the 'gcj' command line,
! in which case they will all be compiled.  If you specify a '-o FILENAME'
  option, all the input files will be compiled together, producing a
  single output file, named FILENAME.  This is allowed even when using
! '-S' or '-c', but not when using '-C' or '--resource'.  (This is an
! extension beyond the what plain 'gcc' allows.)  (If more than one input
! file is specified, all must currently be '.java' files, though we hope
  to fix this.)
  
  
*************** File: gcj.info,  Node: Input Options,  N
*** 1373,1451 ****
  1.2 Input Options
  =================
  
! `gcj' has options to control where it looks to find files it needs.
! For instance, `gcj' might need to load a class that is referenced by
! the file it has been asked to compile.  Like other compilers for the
! Java language, `gcj' has a notion of a "class path".  There are several
  options and environment variables which can be used to manipulate the
! class path.  When `gcj' looks for a given class, it searches the class
! path looking for matching `.class' or `.java' file.  `gcj' comes with a
! built-in class path which points at the installed `libgcj.jar', a file
  which contains all the standard classes.
  
     In the text below, a directory or path component can refer either to
! an actual directory on the filesystem, or to a `.zip' or `.jar' file,
! which `gcj' will search as if it is a directory.
  
! `-IDIR'
!      All directories specified by `-I' are kept in order and prepended
       to the class path constructed from all the other options.  Unless
!      compatibility with tools like `javac' is important, we recommend
!      always using `-I' instead of the other options for manipulating the
       class path.
  
! `--classpath=PATH'
       This sets the class path to PATH, a colon-separated list of paths
       (on Windows-based systems, a semicolon-separate list of paths).
       This does not override the builtin ("boot") search path.
  
! `--CLASSPATH=PATH'
!      Deprecated synonym for `--classpath'.
  
! `--bootclasspath=PATH'
       Where to find the standard builtin classes, such as
!      `java.lang.String'.
  
! `--extdirs=PATH'
       For each directory in the PATH, place the contents of that
       directory at the end of the class path.
  
! `CLASSPATH'
       This is an environment variable which holds a list of paths.
  
     The final class path is constructed like so:
  
!    * First come all directories specified via `-I'.
  
!    * If `--classpath' is specified, its value is appended.  Otherwise,
!      if the `CLASSPATH' environment variable is specified, then its
!      value is appended.  Otherwise, the current directory (`"."') is
       appended.
  
!    * If `--bootclasspath' was specified, append its value.  Otherwise,
!      append the built-in system directory, `libgcj.jar'.
  
!    * Finally, if `--extdirs' was specified, append the contents of the
       specified directories at the end of the class path.  Otherwise,
       append the contents of the built-in extdirs at
!      `$(prefix)/share/java/ext'.
  
!    The classfile built by `gcj' for the class `java.lang.Object' (and
! placed in `libgcj.jar') contains a special zero length attribute
! `gnu.gcj.gcj-compiled'. The compiler looks for this attribute when
! loading `java.lang.Object' and will report an error if it isn't found,
  unless it compiles to bytecode (the option
! `-fforce-classes-archive-check' can be used to override this behavior
! in this particular case.)
  
! `-fforce-classes-archive-check'
       This forces the compiler to always check for the special zero
!      length attribute `gnu.gcj.gcj-compiled' in `java.lang.Object' and
       issue an error if it isn't found.
  
! `-fsource=VERSION'
!      This option is used to choose the source version accepted by
!      `gcj'.  The default is `1.5'.
  
  
  File: gcj.info,  Node: Encodings,  Next: Warnings,  Prev: Input Options,  Up: Invoking gcj
--- 1358,1436 ----
  1.2 Input Options
  =================
  
! 'gcj' has options to control where it looks to find files it needs.  For
! instance, 'gcj' might need to load a class that is referenced by the
! file it has been asked to compile.  Like other compilers for the Java
! language, 'gcj' has a notion of a "class path".  There are several
  options and environment variables which can be used to manipulate the
! class path.  When 'gcj' looks for a given class, it searches the class
! path looking for matching '.class' or '.java' file.  'gcj' comes with a
! built-in class path which points at the installed 'libgcj.jar', a file
  which contains all the standard classes.
  
     In the text below, a directory or path component can refer either to
! an actual directory on the filesystem, or to a '.zip' or '.jar' file,
! which 'gcj' will search as if it is a directory.
  
! '-IDIR'
!      All directories specified by '-I' are kept in order and prepended
       to the class path constructed from all the other options.  Unless
!      compatibility with tools like 'javac' is important, we recommend
!      always using '-I' instead of the other options for manipulating the
       class path.
  
! '--classpath=PATH'
       This sets the class path to PATH, a colon-separated list of paths
       (on Windows-based systems, a semicolon-separate list of paths).
       This does not override the builtin ("boot") search path.
  
! '--CLASSPATH=PATH'
!      Deprecated synonym for '--classpath'.
  
! '--bootclasspath=PATH'
       Where to find the standard builtin classes, such as
!      'java.lang.String'.
  
! '--extdirs=PATH'
       For each directory in the PATH, place the contents of that
       directory at the end of the class path.
  
! 'CLASSPATH'
       This is an environment variable which holds a list of paths.
  
     The final class path is constructed like so:
  
!    * First come all directories specified via '-I'.
  
!    * If '--classpath' is specified, its value is appended.  Otherwise,
!      if the 'CLASSPATH' environment variable is specified, then its
!      value is appended.  Otherwise, the current directory ('"."') is
       appended.
  
!    * If '--bootclasspath' was specified, append its value.  Otherwise,
!      append the built-in system directory, 'libgcj.jar'.
  
!    * Finally, if '--extdirs' was specified, append the contents of the
       specified directories at the end of the class path.  Otherwise,
       append the contents of the built-in extdirs at
!      '$(prefix)/share/java/ext'.
  
!    The classfile built by 'gcj' for the class 'java.lang.Object' (and
! placed in 'libgcj.jar') contains a special zero length attribute
! 'gnu.gcj.gcj-compiled'.  The compiler looks for this attribute when
! loading 'java.lang.Object' and will report an error if it isn't found,
  unless it compiles to bytecode (the option
! '-fforce-classes-archive-check' can be used to override this behavior in
! this particular case.)
  
! '-fforce-classes-archive-check'
       This forces the compiler to always check for the special zero
!      length attribute 'gnu.gcj.gcj-compiled' in 'java.lang.Object' and
       issue an error if it isn't found.
  
! '-fsource=VERSION'
!      This option is used to choose the source version accepted by 'gcj'.
!      The default is '1.5'.
  
  
  File: gcj.info,  Node: Encodings,  Next: Warnings,  Prev: Input Options,  Up: Invoking gcj
*************** File: gcj.info,  Node: Encodings,  Next:
*** 1454,1476 ****
  =============
  
  The Java programming language uses Unicode throughout.  In an effort to
! integrate well with other locales, `gcj' allows `.java' files to be
! written using almost any encoding.  `gcj' knows how to convert these
  encodings into its internal encoding at compile time.
  
!    You can use the `--encoding=NAME' option to specify an encoding (of
! a particular character set) to use for source files.  If this is not
! specified, the default encoding comes from your current locale.  If
! your host system has insufficient locale support, then `gcj' assumes
! the default encoding to be the `UTF-8' encoding of Unicode.
  
!    To implement `--encoding', `gcj' simply uses the host platform's
! `iconv' conversion routine.  This means that in practice `gcj' is
  limited by the capabilities of the host platform.
  
!    The names allowed for the argument `--encoding' vary from platform
! to platform (since they are not standardized anywhere).  However, `gcj'
! implements the encoding named `UTF-8' internally, so if you choose to
  use this for your source files you can be assured that it will work on
  every host.
  
--- 1439,1461 ----
  =============
  
  The Java programming language uses Unicode throughout.  In an effort to
! integrate well with other locales, 'gcj' allows '.java' files to be
! written using almost any encoding.  'gcj' knows how to convert these
  encodings into its internal encoding at compile time.
  
!    You can use the '--encoding=NAME' option to specify an encoding (of a
! particular character set) to use for source files.  If this is not
! specified, the default encoding comes from your current locale.  If your
! host system has insufficient locale support, then 'gcj' assumes the
! default encoding to be the 'UTF-8' encoding of Unicode.
  
!    To implement '--encoding', 'gcj' simply uses the host platform's
! 'iconv' conversion routine.  This means that in practice 'gcj' is
  limited by the capabilities of the host platform.
  
!    The names allowed for the argument '--encoding' vary from platform to
! platform (since they are not standardized anywhere).  However, 'gcj'
! implements the encoding named 'UTF-8' internally, so if you choose to
  use this for your source files you can be assured that it will work on
  every host.
  
*************** File: gcj.info,  Node: Warnings,  Next:
*** 1480,1512 ****
  1.4 Warnings
  ============
  
! `gcj' implements several warnings.  As with other generic `gcc'
! warnings, if an option of the form `-Wfoo' enables a warning, then
! `-Wno-foo' will disable it.  Here we've chosen to document the form of
  the warning which will have an effect - the default being the opposite
  of what is listed.
  
! `-Wredundant-modifiers'
!      With this flag, `gcj' will warn about redundant modifiers.  For
!      instance, it will warn if an interface method is declared `public'.
  
! `-Wextraneous-semicolon'
!      This causes `gcj' to warn about empty statements.  Empty statements
       have been deprecated.
  
! `-Wno-out-of-date'
!      This option will cause `gcj' not to warn when a source file is
!      newer than its matching class file.  By default `gcj' will warn
       about this.
  
! `-Wno-deprecated'
       Warn if a deprecated class, method, or field is referred to.
  
! `-Wunused'
!      This is the same as `gcc''s `-Wunused'.
  
! `-Wall'
!      This is the same as `-Wredundant-modifiers -Wextraneous-semicolon
       -Wunused'.
  
  
--- 1465,1497 ----
  1.4 Warnings
  ============
  
! 'gcj' implements several warnings.  As with other generic 'gcc'
! warnings, if an option of the form '-Wfoo' enables a warning, then
! '-Wno-foo' will disable it.  Here we've chosen to document the form of
  the warning which will have an effect - the default being the opposite
  of what is listed.
  
! '-Wredundant-modifiers'
!      With this flag, 'gcj' will warn about redundant modifiers.  For
!      instance, it will warn if an interface method is declared 'public'.
  
! '-Wextraneous-semicolon'
!      This causes 'gcj' to warn about empty statements.  Empty statements
       have been deprecated.
  
! '-Wno-out-of-date'
!      This option will cause 'gcj' not to warn when a source file is
!      newer than its matching class file.  By default 'gcj' will warn
       about this.
  
! '-Wno-deprecated'
       Warn if a deprecated class, method, or field is referred to.
  
! '-Wunused'
!      This is the same as 'gcc''s '-Wunused'.
  
! '-Wall'
!      This is the same as '-Wredundant-modifiers -Wextraneous-semicolon
       -Wunused'.
  
  
*************** File: gcj.info,  Node: Linking,  Next: C
*** 1517,1578 ****
  
  To turn a Java application into an executable program, you need to link
  it with the needed libraries, just as for C or C++.  The linker by
! default looks for a global function named `main'.  Since Java does not
  have global functions, and a collection of Java classes may have more
! than one class with a `main' method, you need to let the linker know
! which of those `main' methods it should invoke when starting the
  application.  You can do that in any of these ways:
  
!    * Specify the class containing the desired `main' method when you
!      link the application, using the `--main' flag, described below.
! 
     * Link the Java package(s) into a shared library (dll) rather than an
!      executable.  Then invoke the application using the `gij' program,
!      making sure that `gij' can find the libraries it needs.
! 
!    * Link the Java packages(s) with the flag `-lgij', which links in
!      the `main' routine from the `gij' command.  This allows you to
!      select the class whose `main' method you want to run when you run
!      the application.  You can also use other `gij' flags, such as `-D'
!      flags to set properties.  Using the `-lgij' library (rather than
!      the `gij' program of the previous mechanism) has some advantages:
       it is compatible with static linking, and does not require
       configuring or installing libraries.
  
!    These `gij' options relate to linking an executable:
  
! `--main=CLASSNAME'
       This option is used when linking to specify the name of the class
!      whose `main' method should be invoked when the resulting
!      executable is run.
  
! `-DNAME[=VALUE]'
!      This option can only be used with `--main'.  It defines a system
       property named NAME with value VALUE.  If VALUE is not specified
       then it defaults to the empty string.  These system properties are
       initialized at the program's startup and can be retrieved at
!      runtime using the `java.lang.System.getProperty' method.
  
! `-lgij'
       Create an application whose command-line processing is that of the
!      `gij' command.
  
!      This option is an alternative to using `--main'; you cannot use
       both.
  
! `-static-libgcj'
       This option causes linking to be done against a static version of
       the libgcj runtime library.  This option is only available if
       corresponding linker support exists.
  
       *Caution:* Static linking of libgcj may cause essential parts of
       libgcj to be omitted.  Some parts of libgcj use reflection to load
!      classes at runtime.  Since the linker does not see these
!      references at link time, it can omit the referred to classes.  The
!      result is usually (but not always) a `ClassNotFoundException'
!      being thrown at runtime. Caution must be used when using this
!      option.  For more details see:
!      `http://gcc.gnu.org/wiki/Statically%20linking%20libgcj'
  
  
  File: gcj.info,  Node: Code Generation,  Next: Configure-time Options,  Prev: Linking,  Up: Invoking gcj
--- 1502,1561 ----
  
  To turn a Java application into an executable program, you need to link
  it with the needed libraries, just as for C or C++.  The linker by
! default looks for a global function named 'main'.  Since Java does not
  have global functions, and a collection of Java classes may have more
! than one class with a 'main' method, you need to let the linker know
! which of those 'main' methods it should invoke when starting the
  application.  You can do that in any of these ways:
  
!    * Specify the class containing the desired 'main' method when you
!      link the application, using the '--main' flag, described below.
     * Link the Java package(s) into a shared library (dll) rather than an
!      executable.  Then invoke the application using the 'gij' program,
!      making sure that 'gij' can find the libraries it needs.
!    * Link the Java packages(s) with the flag '-lgij', which links in the
!      'main' routine from the 'gij' command.  This allows you to select
!      the class whose 'main' method you want to run when you run the
!      application.  You can also use other 'gij' flags, such as '-D'
!      flags to set properties.  Using the '-lgij' library (rather than
!      the 'gij' program of the previous mechanism) has some advantages:
       it is compatible with static linking, and does not require
       configuring or installing libraries.
  
!    These 'gij' options relate to linking an executable:
  
! '--main=CLASSNAME'
       This option is used when linking to specify the name of the class
!      whose 'main' method should be invoked when the resulting executable
!      is run.
  
! '-DNAME[=VALUE]'
!      This option can only be used with '--main'.  It defines a system
       property named NAME with value VALUE.  If VALUE is not specified
       then it defaults to the empty string.  These system properties are
       initialized at the program's startup and can be retrieved at
!      runtime using the 'java.lang.System.getProperty' method.
  
! '-lgij'
       Create an application whose command-line processing is that of the
!      'gij' command.
  
!      This option is an alternative to using '--main'; you cannot use
       both.
  
! '-static-libgcj'
       This option causes linking to be done against a static version of
       the libgcj runtime library.  This option is only available if
       corresponding linker support exists.
  
       *Caution:* Static linking of libgcj may cause essential parts of
       libgcj to be omitted.  Some parts of libgcj use reflection to load
!      classes at runtime.  Since the linker does not see these references
!      at link time, it can omit the referred to classes.  The result is
!      usually (but not always) a 'ClassNotFoundException' being thrown at
!      runtime.  Caution must be used when using this option.  For more
!      details see:
!      <http://gcc.gnu.org/wiki/Statically%20linking%20libgcj>
  
  
  File: gcj.info,  Node: Code Generation,  Next: Configure-time Options,  Prev: Linking,  Up: Invoking gcj
*************** File: gcj.info,  Node: Code Generation,
*** 1580,1765 ****
  1.6 Code Generation
  ===================
  
! In addition to the many `gcc' options controlling code generation,
! `gcj' has several options specific to itself.
  
! `-C'
!      This option is used to tell `gcj' to generate bytecode (`.class'
       files) rather than object code.
  
! `--resource RESOURCE-NAME'
!      This option is used to tell `gcj' to compile the contents of a
!      given file to object code so it may be accessed at runtime with
!      the core protocol handler as `core:/RESOURCE-NAME'.  Note that
       RESOURCE-NAME is the name of the resource as found at runtime; for
!      instance, it could be used in a call to `ResourceBundle.getBundle'.
       The actual file name to be compiled this way must be specified
       separately.
  
! `-ftarget=VERSION'
!      This can be used with `-C' to choose the version of bytecode
!      emitted by `gcj'.  The default is `1.5'.  When not generating
       bytecode, this option has no effect.
  
! `-d DIRECTORY'
!      When used with `-C', this causes all generated `.class' files to
!      be put in the appropriate subdirectory of DIRECTORY.  By default
!      they will be put in subdirectories of the current working
!      directory.
  
! `-fno-bounds-check'
!      By default, `gcj' generates code which checks the bounds of all
       array indexing operations.  With this option, these checks are
       omitted, which can improve performance for code that uses arrays
       extensively.  Note that this can result in unpredictable behavior
       if the code in question actually does violate array bounds
       constraints.  It is safe to use this option if you are sure that
!      your code will never throw an `ArrayIndexOutOfBoundsException'.
  
! `-fno-store-check'
       Don't generate array store checks.  When storing objects into
       arrays, a runtime check is normally generated in order to ensure
!      that the object is assignment compatible with the component type
!      of the array (which may not be known at compile-time).  With this
!      option, these checks are omitted.  This can improve performance
!      for code which stores objects into arrays frequently.  It is safe
!      to use this option if you are sure your code will never throw an
!      `ArrayStoreException'.
  
! `-fjni'
!      With `gcj' there are two options for writing native methods: CNI
!      and JNI.  By default `gcj' assumes you are using CNI.  If you are
       compiling a class with native methods, and these methods are
!      implemented using JNI, then you must use `-fjni'.  This option
!      causes `gcj' to generate stubs which will invoke the underlying JNI
       methods.
  
! `-fno-assert'
!      Don't recognize the `assert' keyword.  This is for compatibility
       with older versions of the language specification.
  
! `-fno-optimize-static-class-initialization'
!      When the optimization level is greater or equal to `-O2', `gcj'
       will try to optimize the way calls into the runtime are made to
       initialize static classes upon their first use (this optimization
!      isn't carried out if `-C' was specified.) When compiling to native
!      code, `-fno-optimize-static-class-initialization' will turn this
       optimization off, regardless of the optimization level in use.
  
! `--disable-assertions[=CLASS-OR-PACKAGE]'
       Don't include code for checking assertions in the compiled code.
!      If `=CLASS-OR-PACKAGE' is missing disables assertion code
       generation for all classes, unless overridden by a more specific
!      `--enable-assertions' flag.  If CLASS-OR-PACKAGE is a class name,
!      only disables generating assertion checks within the named class
!      or its inner classes.  If CLASS-OR-PACKAGE is a package name,
!      disables generating assertion checks within the named package or a
       subpackage.
  
       By default, assertions are enabled when generating class files or
       when not optimizing, and disabled when generating optimized
       binaries.
  
! `--enable-assertions[=CLASS-OR-PACKAGE]'
       Generates code to check assertions.  The option is perhaps
       misnamed, as you still need to turn on assertion checking at
       run-time, and we don't support any easy way to do that.  So this
       flag isn't very useful yet, except to partially override
!      `--disable-assertions'.
  
! `-findirect-dispatch'
!      `gcj' has a special binary compatibility ABI, which is enabled by
!      the `-findirect-dispatch' option.  In this mode, the code
!      generated by `gcj' honors the binary compatibility guarantees in
!      the Java Language Specification, and the resulting object files do
!      not need to be directly linked against their dependencies.
!      Instead, all dependencies are looked up at runtime.  This allows
!      free mixing of interpreted and compiled code.
  
!      Note that, at present, `-findirect-dispatch' can only be used when
!      compiling `.class' files.  It will not work when compiling from
       source.  CNI also does not yet work with the binary compatibility
!      ABI.  These restrictions will be lifted in some future release.
  
       However, if you compile CNI code with the standard ABI, you can
       call it from code built with the binary compatibility ABI.
  
! `-fbootstrap-classes'
!      This option can be use to tell `libgcj' that the compiled classes
       should be loaded by the bootstrap loader, not the system class
       loader.  By default, if you compile a class and link it into an
!      executable, it will be treated as if it was loaded using the
!      system class loader.  This is convenient, as it means that things
!      like `Class.forName()' will search `CLASSPATH' to find the desired
       class.
  
! `-freduced-reflection'
!      This option causes the code generated by `gcj' to contain a
!      reduced amount of the class meta-data used to support runtime
!      reflection. The cost of this savings is the loss of the ability to
!      use certain reflection capabilities of the standard Java runtime
!      environment. When set all meta-data except for that which is
!      needed to obtain correct runtime semantics is eliminated.
  
!      For code that does not use reflection (i.e. serialization, RMI,
!      CORBA or call methods in the `java.lang.reflect' package),
!      `-freduced-reflection' will result in proper operation with a
       savings in executable code size.
  
!      JNI (`-fjni') and the binary compatibility ABI
!      (`-findirect-dispatch') do not work properly without full
!      reflection meta-data.  Because of this, it is an error to use
!      these options with `-freduced-reflection'.
  
       *Caution:* If there is no reflection meta-data, code that uses a
!      `SecurityManager' may not work properly.  Also calling
!      `Class.forName()' may fail if the calling method has no reflection
       meta-data.
  
- 
  
  File: gcj.info,  Node: Configure-time Options,  Prev: Code Generation,  Up: Invoking gcj
  
  1.7 Configure-time Options
  ==========================
  
! Some `gcj' code generations options affect the resulting ABI, and so
! can only be meaningfully given when `libgcj', the runtime package, is
! configured.  `libgcj' puts the appropriate options from this group into
! a `spec' file which is read by `gcj'.  These options are listed here
! for completeness; if you are using `libgcj' then you won't want to
! touch these options.
  
! `-fuse-boehm-gc'
       This enables the use of the Boehm GC bitmap marking code.  In
!      particular this causes `gcj' to put an object marking descriptor
       into each vtable.
  
! `-fhash-synchronization'
!      By default, synchronization data (the data used for `synchronize',
!      `wait', and `notify') is pointed to by a word in each object.
!      With this option `gcj' assumes that this information is stored in a
!      hash table and not in the object itself.
  
! `-fuse-divide-subroutine'
       On some systems, a library routine is called to perform integer
       division.  This is required to get exception handling correct when
       dividing by zero.
  
! `-fcheck-references'
       On some systems it's necessary to insert inline checks whenever
       accessing an object via a reference.  On other systems you won't
!      need this because null pointer accesses are caught automatically
!      by the processor.
  
! `-fuse-atomic-builtins'
       On some systems, GCC can generate code for built-in atomic
       operations.  Use this option to force gcj to use these builtins
       when compiling Java code.  Where this capability is present it
       should be automatically detected, so you won't usually need to use
       this option.
  
- 
  
  File: gcj.info,  Node: Compatibility,  Next: Invoking jcf-dump,  Prev: Invoking gcj,  Up: Top
  
--- 1563,1745 ----
  1.6 Code Generation
  ===================
  
! In addition to the many 'gcc' options controlling code generation, 'gcj'
! has several options specific to itself.
  
! '-C'
!      This option is used to tell 'gcj' to generate bytecode ('.class'
       files) rather than object code.
  
! '--resource RESOURCE-NAME'
!      This option is used to tell 'gcj' to compile the contents of a
!      given file to object code so it may be accessed at runtime with the
!      core protocol handler as 'core:/RESOURCE-NAME'.  Note that
       RESOURCE-NAME is the name of the resource as found at runtime; for
!      instance, it could be used in a call to 'ResourceBundle.getBundle'.
       The actual file name to be compiled this way must be specified
       separately.
  
! '-ftarget=VERSION'
!      This can be used with '-C' to choose the version of bytecode
!      emitted by 'gcj'.  The default is '1.5'.  When not generating
       bytecode, this option has no effect.
  
! '-d DIRECTORY'
!      When used with '-C', this causes all generated '.class' files to be
!      put in the appropriate subdirectory of DIRECTORY.  By default they
!      will be put in subdirectories of the current working directory.
  
! '-fno-bounds-check'
!      By default, 'gcj' generates code which checks the bounds of all
       array indexing operations.  With this option, these checks are
       omitted, which can improve performance for code that uses arrays
       extensively.  Note that this can result in unpredictable behavior
       if the code in question actually does violate array bounds
       constraints.  It is safe to use this option if you are sure that
!      your code will never throw an 'ArrayIndexOutOfBoundsException'.
  
! '-fno-store-check'
       Don't generate array store checks.  When storing objects into
       arrays, a runtime check is normally generated in order to ensure
!      that the object is assignment compatible with the component type of
!      the array (which may not be known at compile-time).  With this
!      option, these checks are omitted.  This can improve performance for
!      code which stores objects into arrays frequently.  It is safe to
!      use this option if you are sure your code will never throw an
!      'ArrayStoreException'.
  
! '-fjni'
!      With 'gcj' there are two options for writing native methods: CNI
!      and JNI.  By default 'gcj' assumes you are using CNI.  If you are
       compiling a class with native methods, and these methods are
!      implemented using JNI, then you must use '-fjni'.  This option
!      causes 'gcj' to generate stubs which will invoke the underlying JNI
       methods.
  
! '-fno-assert'
!      Don't recognize the 'assert' keyword.  This is for compatibility
       with older versions of the language specification.
  
! '-fno-optimize-static-class-initialization'
!      When the optimization level is greater or equal to '-O2', 'gcj'
       will try to optimize the way calls into the runtime are made to
       initialize static classes upon their first use (this optimization
!      isn't carried out if '-C' was specified.)  When compiling to native
!      code, '-fno-optimize-static-class-initialization' will turn this
       optimization off, regardless of the optimization level in use.
  
! '--disable-assertions[=CLASS-OR-PACKAGE]'
       Don't include code for checking assertions in the compiled code.
!      If '=CLASS-OR-PACKAGE' is missing disables assertion code
       generation for all classes, unless overridden by a more specific
!      '--enable-assertions' flag.  If CLASS-OR-PACKAGE is a class name,
!      only disables generating assertion checks within the named class or
!      its inner classes.  If CLASS-OR-PACKAGE is a package name, disables
!      generating assertion checks within the named package or a
       subpackage.
  
       By default, assertions are enabled when generating class files or
       when not optimizing, and disabled when generating optimized
       binaries.
  
! '--enable-assertions[=CLASS-OR-PACKAGE]'
       Generates code to check assertions.  The option is perhaps
       misnamed, as you still need to turn on assertion checking at
       run-time, and we don't support any easy way to do that.  So this
       flag isn't very useful yet, except to partially override
!      '--disable-assertions'.
  
! '-findirect-dispatch'
!      'gcj' has a special binary compatibility ABI, which is enabled by
!      the '-findirect-dispatch' option.  In this mode, the code generated
!      by 'gcj' honors the binary compatibility guarantees in the Java
!      Language Specification, and the resulting object files do not need
!      to be directly linked against their dependencies.  Instead, all
!      dependencies are looked up at runtime.  This allows free mixing of
!      interpreted and compiled code.
  
!      Note that, at present, '-findirect-dispatch' can only be used when
!      compiling '.class' files.  It will not work when compiling from
       source.  CNI also does not yet work with the binary compatibility
!      ABI. These restrictions will be lifted in some future release.
  
       However, if you compile CNI code with the standard ABI, you can
       call it from code built with the binary compatibility ABI.
  
! '-fbootstrap-classes'
!      This option can be use to tell 'libgcj' that the compiled classes
       should be loaded by the bootstrap loader, not the system class
       loader.  By default, if you compile a class and link it into an
!      executable, it will be treated as if it was loaded using the system
!      class loader.  This is convenient, as it means that things like
!      'Class.forName()' will search 'CLASSPATH' to find the desired
       class.
  
! '-freduced-reflection'
!      This option causes the code generated by 'gcj' to contain a reduced
!      amount of the class meta-data used to support runtime reflection.
!      The cost of this savings is the loss of the ability to use certain
!      reflection capabilities of the standard Java runtime environment.
!      When set all meta-data except for that which is needed to obtain
!      correct runtime semantics is eliminated.
  
!      For code that does not use reflection (i.e.  serialization, RMI,
!      CORBA or call methods in the 'java.lang.reflect' package),
!      '-freduced-reflection' will result in proper operation with a
       savings in executable code size.
  
!      JNI ('-fjni') and the binary compatibility ABI
!      ('-findirect-dispatch') do not work properly without full
!      reflection meta-data.  Because of this, it is an error to use these
!      options with '-freduced-reflection'.
  
       *Caution:* If there is no reflection meta-data, code that uses a
!      'SecurityManager' may not work properly.  Also calling
!      'Class.forName()' may fail if the calling method has no reflection
       meta-data.
  
  
  File: gcj.info,  Node: Configure-time Options,  Prev: Code Generation,  Up: Invoking gcj
  
  1.7 Configure-time Options
  ==========================
  
! Some 'gcj' code generations options affect the resulting ABI, and so can
! only be meaningfully given when 'libgcj', the runtime package, is
! configured.  'libgcj' puts the appropriate options from this group into
! a 'spec' file which is read by 'gcj'.  These options are listed here for
! completeness; if you are using 'libgcj' then you won't want to touch
! these options.
  
! '-fuse-boehm-gc'
       This enables the use of the Boehm GC bitmap marking code.  In
!      particular this causes 'gcj' to put an object marking descriptor
       into each vtable.
  
! '-fhash-synchronization'
!      By default, synchronization data (the data used for 'synchronize',
!      'wait', and 'notify') is pointed to by a word in each object.  With
!      this option 'gcj' assumes that this information is stored in a hash
!      table and not in the object itself.
  
! '-fuse-divide-subroutine'
       On some systems, a library routine is called to perform integer
       division.  This is required to get exception handling correct when
       dividing by zero.
  
! '-fcheck-references'
       On some systems it's necessary to insert inline checks whenever
       accessing an object via a reference.  On other systems you won't
!      need this because null pointer accesses are caught automatically by
!      the processor.
  
! '-fuse-atomic-builtins'
       On some systems, GCC can generate code for built-in atomic
       operations.  Use this option to force gcj to use these builtins
       when compiling Java code.  Where this capability is present it
       should be automatically detected, so you won't usually need to use
       this option.
  
  
  File: gcj.info,  Node: Compatibility,  Next: Invoking jcf-dump,  Prev: Invoking gcj,  Up: Top
  
*************** File: gcj.info,  Node: Compatibility,  N
*** 1767,1775 ****
  **************************************
  
  As we believe it is important that the Java platform not be fragmented,
! `gcj' and `libgcj' try to conform to the relevant Java specifications.
  However, limited manpower and incomplete and unclear documentation work
! against us.  So, there are caveats to using `gcj'.
  
  * Menu:
  
--- 1747,1755 ----
  **************************************
  
  As we believe it is important that the Java platform not be fragmented,
! 'gcj' and 'libgcj' try to conform to the relevant Java specifications.
  However, limited manpower and incomplete and unclear documentation work
! against us.  So, there are caveats to using 'gcj'.
  
  * Menu:
  
*************** File: gcj.info,  Node: Limitations,  Nex
*** 1784,1813 ****
  
  This list of compatibility issues is by no means complete.
  
!    * `gcj' implements the JDK 1.2 language.  It supports inner classes
!      and the new 1.4 `assert' keyword.  It does not yet support the
!      Java 2 `strictfp' keyword (it recognizes the keyword but ignores
!      it).
  
!    * `libgcj' is largely compatible with the JDK 1.2 libraries.
!      However, `libgcj' is missing many packages, most notably
!      `java.awt'.  There are also individual missing classes and methods.
       We currently do not have a list showing differences between
!      `libgcj' and the Java 2 platform.
  
!    * Sometimes the `libgcj' implementation of a method or class differs
       from the JDK implementation.  This is not always a bug.  Still, if
!      it affects you, it probably makes sense to report it so that we
!      can discuss the appropriate response.
  
!    * `gcj' does not currently allow for piecemeal replacement of
!      components within `libgcj'. Unfortunately, programmers often want
       to use newer versions of certain packages, such as those provided
       by the Apache Software Foundation's Jakarta project.  This has
!      forced us to place the `org.w3c.dom' and `org.xml.sax' packages
!      into their own libraries, separate from `libgcj'.  If you intend to
       use these classes, you must link them explicitly with
!      `-l-org-w3c-dom' and `-l-org-xml-sax'.  Future versions of `gcj'
       may not have this restriction.
  
  
--- 1764,1792 ----
  
  This list of compatibility issues is by no means complete.
  
!    * 'gcj' implements the JDK 1.2 language.  It supports inner classes
!      and the new 1.4 'assert' keyword.  It does not yet support the Java
!      2 'strictfp' keyword (it recognizes the keyword but ignores it).
  
!    * 'libgcj' is largely compatible with the JDK 1.2 libraries.
!      However, 'libgcj' is missing many packages, most notably
!      'java.awt'.  There are also individual missing classes and methods.
       We currently do not have a list showing differences between
!      'libgcj' and the Java 2 platform.
  
!    * Sometimes the 'libgcj' implementation of a method or class differs
       from the JDK implementation.  This is not always a bug.  Still, if
!      it affects you, it probably makes sense to report it so that we can
!      discuss the appropriate response.
  
!    * 'gcj' does not currently allow for piecemeal replacement of
!      components within 'libgcj'.  Unfortunately, programmers often want
       to use newer versions of certain packages, such as those provided
       by the Apache Software Foundation's Jakarta project.  This has
!      forced us to place the 'org.w3c.dom' and 'org.xml.sax' packages
!      into their own libraries, separate from 'libgcj'.  If you intend to
       use these classes, you must link them explicitly with
!      '-l-org-w3c-dom' and '-l-org-xml-sax'.  Future versions of 'gcj'
       may not have this restriction.
  
  
*************** File: gcj.info,  Node: Extensions,  Prev
*** 1816,1873 ****
  2.2 Extra features unique to gcj
  ================================
  
! The main feature of `gcj' is that it can compile programs written in
! the Java programming language to native code.  Most extensions that
! have been added are to facilitate this functionality.
  
!    * `gcj' makes it easy and efficient to mix code written in Java and
       C++.  *Note About CNI::, for more info on how to use this in your
       programs.
  
     * When you compile your classes into a shared library using
!      `-findirect-dispatch' then add them to the system-wide classmap.db
!      file using `gcj-dbtool', they will be automatically loaded by the
!      `libgcj' system classloader.  This is the new, preferred
       classname-to-library resolution mechanism.  *Note Invoking
       gcj-dbtool::, for more information on using the classmap database.
  
     * The old classname-to-library lookup mechanism is still supported
!      through the `gnu.gcj.runtime.VMClassLoader.library_control'
       property, but it is deprecated and will likely be removed in some
!      future release.  When trying to load a class `gnu.pkg.SomeClass'
       the system classloader will first try to load the shared library
!      `lib-gnu-pkg-SomeClass.so', if that fails to load the class then
!      it will try to load `lib-gnu-pkg.so' and finally when the class is
!      still not loaded it will try to load `lib-gnu.so'.  Note that all
!      `.'s will be transformed into `-'s and that searching for inner
       classes starts with their outermost outer class.  If the class
       cannot be found this way the system classloader tries to use the
!      `libgcj' bytecode interpreter to load the class from the standard
       classpath.  This process can be controlled to some degree via the
!      `gnu.gcj.runtime.VMClassLoader.library_control' property; *Note
       libgcj Runtime Properties::.
  
!    * `libgcj' includes a special `gcjlib' URL type.  A URL of this form
!      is like a `jar' URL, and looks like
!      `gcjlib:/path/to/shared/library.so!/path/to/resource'.  An access
!      to one of these URLs causes the shared library to be `dlopen()'d,
       and then the resource is looked for in that library.  These URLs
       are most useful when used in conjunction with
!      `java.net.URLClassLoader'.  Note that, due to implementation
       limitations, currently any such URL can be accessed by only one
       class loader, and libraries are never unloaded.  This means some
!      care must be exercised to make sure that a `gcjlib' URL is not
       accessed by more than one class loader at once.  In a future
       release this limitation will be lifted, and such libraries will be
       mapped privately.
  
!    * A program compiled by `gcj' will examine the `GCJ_PROPERTIES'
       environment variable and change its behavior in some ways.  In
!      particular `GCJ_PROPERTIES' holds a list of assignments to global
!      properties, such as would be set with the `-D' option to `java'.
!      For instance, `java.compiler=gcj' is a valid (but currently
!      meaningless) setting.  
! 
  
  
  File: gcj.info,  Node: Invoking jcf-dump,  Next: Invoking gij,  Prev: Compatibility,  Up: Top
--- 1795,1851 ----
  2.2 Extra features unique to gcj
  ================================
  
! The main feature of 'gcj' is that it can compile programs written in the
! Java programming language to native code.  Most extensions that have
! been added are to facilitate this functionality.
  
!    * 'gcj' makes it easy and efficient to mix code written in Java and
       C++.  *Note About CNI::, for more info on how to use this in your
       programs.
  
     * When you compile your classes into a shared library using
!      '-findirect-dispatch' then add them to the system-wide classmap.db
!      file using 'gcj-dbtool', they will be automatically loaded by the
!      'libgcj' system classloader.  This is the new, preferred
       classname-to-library resolution mechanism.  *Note Invoking
       gcj-dbtool::, for more information on using the classmap database.
  
     * The old classname-to-library lookup mechanism is still supported
!      through the 'gnu.gcj.runtime.VMClassLoader.library_control'
       property, but it is deprecated and will likely be removed in some
!      future release.  When trying to load a class 'gnu.pkg.SomeClass'
       the system classloader will first try to load the shared library
!      'lib-gnu-pkg-SomeClass.so', if that fails to load the class then it
!      will try to load 'lib-gnu-pkg.so' and finally when the class is
!      still not loaded it will try to load 'lib-gnu.so'.  Note that all
!      '.'s will be transformed into '-'s and that searching for inner
       classes starts with their outermost outer class.  If the class
       cannot be found this way the system classloader tries to use the
!      'libgcj' bytecode interpreter to load the class from the standard
       classpath.  This process can be controlled to some degree via the
!      'gnu.gcj.runtime.VMClassLoader.library_control' property; *Note
       libgcj Runtime Properties::.
  
!    * 'libgcj' includes a special 'gcjlib' URL type.  A URL of this form
!      is like a 'jar' URL, and looks like
!      'gcjlib:/path/to/shared/library.so!/path/to/resource'.  An access
!      to one of these URLs causes the shared library to be 'dlopen()'d,
       and then the resource is looked for in that library.  These URLs
       are most useful when used in conjunction with
!      'java.net.URLClassLoader'.  Note that, due to implementation
       limitations, currently any such URL can be accessed by only one
       class loader, and libraries are never unloaded.  This means some
!      care must be exercised to make sure that a 'gcjlib' URL is not
       accessed by more than one class loader at once.  In a future
       release this limitation will be lifted, and such libraries will be
       mapped privately.
  
!    * A program compiled by 'gcj' will examine the 'GCJ_PROPERTIES'
       environment variable and change its behavior in some ways.  In
!      particular 'GCJ_PROPERTIES' holds a list of assignments to global
!      properties, such as would be set with the '-D' option to 'java'.
!      For instance, 'java.compiler=gcj' is a valid (but currently
!      meaningless) setting.
  
  
  File: gcj.info,  Node: Invoking jcf-dump,  Next: Invoking gij,  Prev: Compatibility,  Up: Top
*************** File: gcj.info,  Node: Invoking jcf-dump
*** 1875,1911 ****
  3 Invoking jcf-dump
  *******************
  
! This is a class file examiner, similar to `javap'.  It will print
  information about a number of classes, which are specified by class name
  or file name.
  
! `-c'
       Disassemble method bodies.  By default method bodies are not
       printed.
  
! `--print-constants'
       Print the constant pool.  When printing a reference to a constant
       also print its index in the constant pool.
  
! `--javap'
!      Generate output in `javap' format.  The implementation of this
       feature is very incomplete.
  
! `--classpath=PATH'
! `--CLASSPATH=PATH'
! `-IDIRECTORY'
! `-o FILE'
!      These options as the same as the corresponding `gcj' options.
  
! `--help'
       Print help, then exit.
  
! `--version'
       Print version number, then exit.
  
! `-v, --verbose'
       Print extra information while running.  Implies
!      `--print-constants'.
  
  
  File: gcj.info,  Node: Invoking gij,  Next: Invoking gcj-dbtool,  Prev: Invoking jcf-dump,  Up: Top
--- 1853,1889 ----
  3 Invoking jcf-dump
  *******************
  
! This is a class file examiner, similar to 'javap'.  It will print
  information about a number of classes, which are specified by class name
  or file name.
  
! '-c'
       Disassemble method bodies.  By default method bodies are not
       printed.
  
! '--print-constants'
       Print the constant pool.  When printing a reference to a constant
       also print its index in the constant pool.
  
! '--javap'
!      Generate output in 'javap' format.  The implementation of this
       feature is very incomplete.
  
! '--classpath=PATH'
! '--CLASSPATH=PATH'
! '-IDIRECTORY'
! '-o FILE'
!      These options as the same as the corresponding 'gcj' options.
  
! '--help'
       Print help, then exit.
  
! '--version'
       Print version number, then exit.
  
! '-v, --verbose'
       Print extra information while running.  Implies
!      '--print-constants'.
  
  
  File: gcj.info,  Node: Invoking gij,  Next: Invoking gcj-dbtool,  Prev: Invoking jcf-dump,  Up: Top
*************** File: gcj.info,  Node: Invoking gij,  Ne
*** 1913,2012 ****
  4 Invoking gij
  **************
  
! `gij' is a Java bytecode interpreter included with `libgcj'.  `gij' is
  not available on every platform; porting it requires a small amount of
  assembly programming which has not been done for all the targets
! supported by `gcj'.
  
!    The primary argument to `gij' is the name of a class or, with
! `-jar', a jar file.  Options before this argument are interpreted by
! `gij'; remaining options are passed to the interpreted program.
  
!    If a class name is specified and this class does not have a `main'
! method with the appropriate signature (a `static void' method with a
! `String[]' as its sole argument), then `gij' will print an error and
  exit.
  
!    If a jar file is specified then `gij' will use information in it to
! determine which class' `main' method will be invoked.
  
!    `gij' will invoke the `main' method with all the remaining
  command-line options.
  
!    Note that `gij' is not limited to interpreting code.  Because
! `libgcj' includes a class loader which can dynamically load shared
! objects, it is possible to give `gij' the name of a class which has
! been compiled and put into a shared library on the class path.
  
! `-cp PATH'
! `-classpath PATH'
       Set the initial class path.  The class path is used for finding
       class and resource files.  If specified, this option overrides the
!      `CLASSPATH' environment variable.  Note that this option is
!      ignored if `-jar' is used.
  
! `-DNAME[=VALUE]'
       This defines a system property named NAME with value VALUE.  If
!      VALUE is not specified then it defaults to the empty string.
!      These system properties are initialized at the program's startup
!      and can be retrieved at runtime using the
!      `java.lang.System.getProperty' method.
  
! `-ms=NUMBER'
!      Equivalent to `-Xms'.
  
! `-mx=NUMBER'
!      Equivalent to `-Xmx'.
  
! `-noverify'
!      Do not verify compliance of bytecode with the VM specification. In
!      addition, this option disables type verification which is
!      otherwise performed on BC-ABI compiled code.
  
! `-X'
! `-XARGUMENT'
!      Supplying `-X' by itself will cause `gij' to list all the
!      supported `-X' options.  Currently these options are supported:
  
!     `-XmsSIZE'
            Set the initial heap size.
  
!     `-XmxSIZE'
            Set the maximum heap size.
  
!     `-XssSIZE'
            Set the thread stack size.
  
!      Unrecognized `-X' options are ignored, for compatibility with
!      other runtimes.
  
! `-jar'
!      This indicates that the name passed to `gij' should be interpreted
       as the name of a jar file, not a class.
  
! `--help'
! `-?'
       Print help, then exit.
  
! `--showversion'
       Print version number and continue.
  
! `--fullversion'
       Print detailed version information, then exit.
  
! `--version'
       Print version number, then exit.
  
! `-verbose'
! `-verbose:class'
!      Each time a class is initialized, print a short message on
!      standard error.
  
!    `gij' also recognizes and ignores the following options, for
! compatibility with existing application launch scripts: `-client',
! `-server', `-hotspot', `-jrockit', `-agentlib', `-agentpath', `-debug',
! `-d32', `-d64', `-javaagent', `-noclassgc', `-verify', and
! `-verifyremote'.
  
  
  File: gcj.info,  Node: Invoking gcj-dbtool,  Next: Invoking jv-convert,  Prev: Invoking gij,  Up: Top
--- 1891,1990 ----
  4 Invoking gij
  **************
  
! 'gij' is a Java bytecode interpreter included with 'libgcj'.  'gij' is
  not available on every platform; porting it requires a small amount of
  assembly programming which has not been done for all the targets
! supported by 'gcj'.
  
!    The primary argument to 'gij' is the name of a class or, with '-jar',
! a jar file.  Options before this argument are interpreted by 'gij';
! remaining options are passed to the interpreted program.
  
!    If a class name is specified and this class does not have a 'main'
! method with the appropriate signature (a 'static void' method with a
! 'String[]' as its sole argument), then 'gij' will print an error and
  exit.
  
!    If a jar file is specified then 'gij' will use information in it to
! determine which class' 'main' method will be invoked.
  
!    'gij' will invoke the 'main' method with all the remaining
  command-line options.
  
!    Note that 'gij' is not limited to interpreting code.  Because
! 'libgcj' includes a class loader which can dynamically load shared
! objects, it is possible to give 'gij' the name of a class which has been
! compiled and put into a shared library on the class path.
  
! '-cp PATH'
! '-classpath PATH'
       Set the initial class path.  The class path is used for finding
       class and resource files.  If specified, this option overrides the
!      'CLASSPATH' environment variable.  Note that this option is ignored
!      if '-jar' is used.
  
! '-DNAME[=VALUE]'
       This defines a system property named NAME with value VALUE.  If
!      VALUE is not specified then it defaults to the empty string.  These
!      system properties are initialized at the program's startup and can
!      be retrieved at runtime using the 'java.lang.System.getProperty'
!      method.
  
! '-ms=NUMBER'
!      Equivalent to '-Xms'.
  
! '-mx=NUMBER'
!      Equivalent to '-Xmx'.
  
! '-noverify'
!      Do not verify compliance of bytecode with the VM specification.  In
!      addition, this option disables type verification which is otherwise
!      performed on BC-ABI compiled code.
  
! '-X'
! '-XARGUMENT'
!      Supplying '-X' by itself will cause 'gij' to list all the supported
!      '-X' options.  Currently these options are supported:
  
!      '-XmsSIZE'
            Set the initial heap size.
  
!      '-XmxSIZE'
            Set the maximum heap size.
  
!      '-XssSIZE'
            Set the thread stack size.
  
!      Unrecognized '-X' options are ignored, for compatibility with other
!      runtimes.
  
! '-jar'
!      This indicates that the name passed to 'gij' should be interpreted
       as the name of a jar file, not a class.
  
! '--help'
! '-?'
       Print help, then exit.
  
! '--showversion'
       Print version number and continue.
  
! '--fullversion'
       Print detailed version information, then exit.
  
! '--version'
       Print version number, then exit.
  
! '-verbose'
! '-verbose:class'
!      Each time a class is initialized, print a short message on standard
!      error.
  
!    'gij' also recognizes and ignores the following options, for
! compatibility with existing application launch scripts: '-client',
! '-server', '-hotspot', '-jrockit', '-agentlib', '-agentpath', '-debug',
! '-d32', '-d64', '-javaagent', '-noclassgc', '-verify', and
! '-verifyremote'.
  
  
  File: gcj.info,  Node: Invoking gcj-dbtool,  Next: Invoking jv-convert,  Prev: Invoking gij,  Up: Top
*************** File: gcj.info,  Node: Invoking gcj-dbto
*** 2014,2116 ****
  5 Invoking gcj-dbtool.
  **********************
  
! `gcj-dbtool' is a tool for creating and manipulating class file mapping
! databases.  `libgcj' can use these databases to find a shared library
  corresponding to the bytecode representation of a class.  This
  functionality is useful for ahead-of-time compilation of a program that
! has no knowledge of `gcj'.
  
!    `gcj-dbtool' works best if all the jar files added to it are
! compiled using `-findirect-dispatch'.
  
!    Note that `gcj-dbtool' is currently available as "preview
  technology".  We believe it is a reasonable way to allow
  application-transparent ahead-of-time compilation, but this is an
  unexplored area.  We welcome your comments.
  
! `-n DBFILE [SIZE]'
       This creates a new database.  Currently, databases cannot be
       resized; you can choose a larger initial size if desired.  The
       default size is 32,749.
  
! `-a DBFILE JARFILE LIB'
! `-f DBFILE JARFILE LIB'
       This adds a jar file to the database.  For each class file in the
       jar, a cryptographic signature of the bytecode representation of
       the class is recorded in the database.  At runtime, a class is
       looked up by its signature and the compiled form of the class is
!      looked for in the corresponding shared library.  The `-a' option
!      will verify that LIB exists before adding it to the database; `-f'
       skips this check.
  
! `[`-'][`-0'] -m DBFILE DBFILE,[DBFILE]'
       Merge a number of databases.  The output database overwrites any
       existing database.  To add databases into an existing database,
       include the destination in the list of sources.
  
!      If `-' or `-0' are used, the list of files to read is taken from
!      standard input instead of the command line.  For `-0', Input
       filenames are terminated by a null character instead of by
       whitespace.  Useful when arguments might contain white space.  The
       GNU find -print0 option produces input suitable for this mode.
  
! `-t DBFILE'
       Test a database.
  
! `-l DBFILE'
       List the contents of a database.
  
! `-p'
       Print the name of the default database.  If there is no default
!      database, this prints a blank line.  If LIBDIR is specified, use
!      it instead of the default library directory component of the
!      database name.
  
! `--help'
       Print a help message, then exit.
  
! `--version'
! `-v'
       Print version information, then exit.
  
- 
  
  File: gcj.info,  Node: Invoking jv-convert,  Next: Invoking grmic,  Prev: Invoking gcj-dbtool,  Up: Top
  
  6 Invoking jv-convert
  *********************
  
! `jv-convert' [`OPTION'] ... [INPUTFILE [OUTPUTFILE]]
  
!    `jv-convert' is a utility included with `libgcj' which converts a
! file from one encoding to another.  It is similar to the Unix `iconv'
  utility.
  
!    The encodings supported by `jv-convert' are platform-dependent.
  Currently there is no way to get a list of all supported encodings.
  
! `--encoding NAME'
! `--from NAME'
       Use NAME as the input encoding.  The default is the current
       locale's encoding.
  
! `--to NAME'
!      Use NAME as the output encoding.  The default is the `JavaSrc'
!      encoding; this is ASCII with `\u' escapes for non-ASCII characters.
  
! `-i FILE'
       Read from FILE.  The default is to read from standard input.
  
! `-o FILE'
       Write to FILE.  The default is to write to standard output.
  
! `--reverse'
       Swap the input and output encodings.
  
! `--help'
       Print a help message, then exit.
  
! `--version'
       Print version information, then exit.
  
  
--- 1992,2093 ----
  5 Invoking gcj-dbtool.
  **********************
  
! 'gcj-dbtool' is a tool for creating and manipulating class file mapping
! databases.  'libgcj' can use these databases to find a shared library
  corresponding to the bytecode representation of a class.  This
  functionality is useful for ahead-of-time compilation of a program that
! has no knowledge of 'gcj'.
  
!    'gcj-dbtool' works best if all the jar files added to it are compiled
! using '-findirect-dispatch'.
  
!    Note that 'gcj-dbtool' is currently available as "preview
  technology".  We believe it is a reasonable way to allow
  application-transparent ahead-of-time compilation, but this is an
  unexplored area.  We welcome your comments.
  
! '-n DBFILE [SIZE]'
       This creates a new database.  Currently, databases cannot be
       resized; you can choose a larger initial size if desired.  The
       default size is 32,749.
  
! '-a DBFILE JARFILE LIB'
! '-f DBFILE JARFILE LIB'
       This adds a jar file to the database.  For each class file in the
       jar, a cryptographic signature of the bytecode representation of
       the class is recorded in the database.  At runtime, a class is
       looked up by its signature and the compiled form of the class is
!      looked for in the corresponding shared library.  The '-a' option
!      will verify that LIB exists before adding it to the database; '-f'
       skips this check.
  
! '[-][-0] -m DBFILE DBFILE,[DBFILE]'
       Merge a number of databases.  The output database overwrites any
       existing database.  To add databases into an existing database,
       include the destination in the list of sources.
  
!      If '-' or '-0' are used, the list of files to read is taken from
!      standard input instead of the command line.  For '-0', Input
       filenames are terminated by a null character instead of by
       whitespace.  Useful when arguments might contain white space.  The
       GNU find -print0 option produces input suitable for this mode.
  
! '-t DBFILE'
       Test a database.
  
! '-l DBFILE'
       List the contents of a database.
  
! '-p'
       Print the name of the default database.  If there is no default
!      database, this prints a blank line.  If LIBDIR is specified, use it
!      instead of the default library directory component of the database
!      name.
  
! '--help'
       Print a help message, then exit.
  
! '--version'
! '-v'
       Print version information, then exit.
  
  
  File: gcj.info,  Node: Invoking jv-convert,  Next: Invoking grmic,  Prev: Invoking gcj-dbtool,  Up: Top
  
  6 Invoking jv-convert
  *********************
  
! 'jv-convert' ['OPTION'] ... [INPUTFILE [OUTPUTFILE]]
  
!    'jv-convert' is a utility included with 'libgcj' which converts a
! file from one encoding to another.  It is similar to the Unix 'iconv'
  utility.
  
!    The encodings supported by 'jv-convert' are platform-dependent.
  Currently there is no way to get a list of all supported encodings.
  
! '--encoding NAME'
! '--from NAME'
       Use NAME as the input encoding.  The default is the current
       locale's encoding.
  
! '--to NAME'
!      Use NAME as the output encoding.  The default is the 'JavaSrc'
!      encoding; this is ASCII with '\u' escapes for non-ASCII characters.
  
! '-i FILE'
       Read from FILE.  The default is to read from standard input.
  
! '-o FILE'
       Write to FILE.  The default is to write to standard output.
  
! '--reverse'
       Swap the input and output encodings.
  
! '--help'
       Print a help message, then exit.
  
! '--version'
       Print version information, then exit.
  
  
*************** File: gcj.info,  Node: Invoking grmic,
*** 2119,2167 ****
  7 Invoking grmic
  ****************
  
! `grmic' [`OPTION'] ... CLASS ...
  
!    `grmic' is a utility included with `libgcj' which generates stubs
! for remote objects.
  
     Note that this program isn't yet fully compatible with the JDK
! `grmic'.  Some options, such as `-classpath', are recognized but
  currently ignored.  We have left these options undocumented for now.
  
!    Long options can also be given with a GNU-style leading `--'.  For
! instance, `--help' is accepted.
  
! `-keep'
! `-keepgenerated'
!      By default, `grmic' deletes intermediate files.  Either of these
       options causes it not to delete such files.
  
! `-v1.1'
!      Cause `grmic' to create stubs and skeletons for the 1.1 protocol
       version.
  
! `-vcompat'
!      Cause `grmic' to create stubs and skeletons compatible with both
       the 1.1 and 1.2 protocol versions.  This is the default.
  
! `-v1.2'
!      Cause `grmic' to create stubs and skeletons for the 1.2 protocol
       version.
  
! `-nocompile'
       Don't compile the generated files.
  
! `-verbose'
!      Print information about what `grmic' is doing.
  
! `-d DIRECTORY'
!      Put output files in DIRECTORY.  By default the files are put in
!      the current working directory.
  
! `-help'
       Print a help message, then exit.
  
! `-version'
       Print version information, then exit.
  
  
--- 2096,2144 ----
  7 Invoking grmic
  ****************
  
! 'grmic' ['OPTION'] ... CLASS ...
  
!    'grmic' is a utility included with 'libgcj' which generates stubs for
! remote objects.
  
     Note that this program isn't yet fully compatible with the JDK
! 'grmic'.  Some options, such as '-classpath', are recognized but
  currently ignored.  We have left these options undocumented for now.
  
!    Long options can also be given with a GNU-style leading '--'.  For
! instance, '--help' is accepted.
  
! '-keep'
! '-keepgenerated'
!      By default, 'grmic' deletes intermediate files.  Either of these
       options causes it not to delete such files.
  
! '-v1.1'
!      Cause 'grmic' to create stubs and skeletons for the 1.1 protocol
       version.
  
! '-vcompat'
!      Cause 'grmic' to create stubs and skeletons compatible with both
       the 1.1 and 1.2 protocol versions.  This is the default.
  
! '-v1.2'
!      Cause 'grmic' to create stubs and skeletons for the 1.2 protocol
       version.
  
! '-nocompile'
       Don't compile the generated files.
  
! '-verbose'
!      Print information about what 'grmic' is doing.
  
! '-d DIRECTORY'
!      Put output files in DIRECTORY.  By default the files are put in the
!      current working directory.
  
! '-help'
       Print a help message, then exit.
  
! '-version'
       Print version information, then exit.
  
  
*************** File: gcj.info,  Node: Invoking gc-analy
*** 2170,2187 ****
  8 Invoking gc-analyze
  *********************
  
! `gc-analyze' [`OPTION'] ... [FILE]
  
!    `gc-analyze' prints an analysis of a GC memory dump to standard out.
  
     The memory dumps may be created by calling
! `gnu.gcj.util.GCInfo.enumerate(String namePrefix)' from java code.  A
  memory dump will be created on an out of memory condition if
! `gnu.gcj.util.GCInfo.setOOMDump(String namePrefix)' is called before
! the out of memory occurs.
  
!    Running this program will create two files: `TestDump001' and
! `TestDump001.bytes'.
  
       import gnu.gcj.util.*;
       import java.util.*;
--- 2147,2164 ----
  8 Invoking gc-analyze
  *********************
  
! 'gc-analyze' ['OPTION'] ... [FILE]
  
!    'gc-analyze' prints an analysis of a GC memory dump to standard out.
  
     The memory dumps may be created by calling
! 'gnu.gcj.util.GCInfo.enumerate(String namePrefix)' from java code.  A
  memory dump will be created on an out of memory condition if
! 'gnu.gcj.util.GCInfo.setOOMDump(String namePrefix)' is called before the
! out of memory occurs.
  
!    Running this program will create two files: 'TestDump001' and
! 'TestDump001.bytes'.
  
       import gnu.gcj.util.*;
       import java.util.*;
*************** the out of memory occurs.
*** 2203,2223 ****
  
       gc-analyze -v TestDump001
  
! `--verbose'
! `-v'
       Verbose output.
  
! `-p TOOL-PREFIX'
!      Prefix added to the names of the `nm' and `readelf' commands.
  
! `-d DIRECTORY'
       Directory that contains the executable and shared libraries used
       when the dump was generated.
  
! `--help'
       Print a help message, then exit.
  
! `--version'
       Print version information, then exit.
  
  
--- 2180,2200 ----
  
       gc-analyze -v TestDump001
  
! '--verbose'
! '-v'
       Verbose output.
  
! '-p TOOL-PREFIX'
!      Prefix added to the names of the 'nm' and 'readelf' commands.
  
! '-d DIRECTORY'
       Directory that contains the executable and shared libraries used
       when the dump was generated.
  
! '--help'
       Print a help message, then exit.
  
! '--version'
       Print version information, then exit.
  
  
*************** File: gcj.info,  Node: Invoking aot-comp
*** 2226,2267 ****
  9 Invoking aot-compile
  **********************
  
! `aot-compile' is a script that searches a directory for Java bytecode
! (as class files, or in jars) and uses `gcj' to compile it to native
! code and generate the databases from it.
  
! `-M, --make=PATH'
!      Specify the path to the `make' executable to use.
  
! `-C, --gcj=PATH'
!      Specify the path to the `gcj' executable to use.
  
! `-D, --dbtool=PATH'
!      Specify the path to the `gcj-dbtool' executable to use.
  
! `-m, --makeflags=FLAGS'
!      Specify flags to pass to `make' during the build.
  
! `-c, --gcjflags=FLAGS'
!      Specify flags to pass to `gcj' during compilation, in addition to
       '-fPIC -findirect-dispatch -fjni'.
  
! `-l, --ldflags=FLAGS'
!      Specify flags to pass to `gcj' during linking, in addition to
       '-Wl,-Bsymbolic'.
  
! `-e, --exclude=PATH'
       Do not compile PATH.
  
- 
  
  File: gcj.info,  Node: Invoking rebuild-gcj-db,  Next: About CNI,  Prev: Invoking aot-compile,  Up: Top
  
  10 Invoking rebuild-gcj-db
  **************************
  
! `rebuild-gcj-db' is a script that merges the per-solib databases made by
! `aot-compile' into one system-wide database so `gij' can find the
  solibs.
  
  
--- 2203,2243 ----
  9 Invoking aot-compile
  **********************
  
! 'aot-compile' is a script that searches a directory for Java bytecode
! (as class files, or in jars) and uses 'gcj' to compile it to native code
! and generate the databases from it.
  
! '-M, --make=PATH'
!      Specify the path to the 'make' executable to use.
  
! '-C, --gcj=PATH'
!      Specify the path to the 'gcj' executable to use.
  
! '-D, --dbtool=PATH'
!      Specify the path to the 'gcj-dbtool' executable to use.
  
! '-m, --makeflags=FLAGS'
!      Specify flags to pass to 'make' during the build.
  
! '-c, --gcjflags=FLAGS'
!      Specify flags to pass to 'gcj' during compilation, in addition to
       '-fPIC -findirect-dispatch -fjni'.
  
! '-l, --ldflags=FLAGS'
!      Specify flags to pass to 'gcj' during linking, in addition to
       '-Wl,-Bsymbolic'.
  
! '-e, --exclude=PATH'
       Do not compile PATH.
  
  
  File: gcj.info,  Node: Invoking rebuild-gcj-db,  Next: About CNI,  Prev: Invoking aot-compile,  Up: Top
  
  10 Invoking rebuild-gcj-db
  **************************
  
! 'rebuild-gcj-db' is a script that merges the per-solib databases made by
! 'aot-compile' into one system-wide database so 'gij' can find the
  solibs.
  
  
*************** File: gcj.info,  Node: Basic concepts,
*** 2304,2312 ****
  In terms of languages features, Java is mostly a subset of C++.  Java
  has a few important extensions, plus a powerful standard class library,
  but on the whole that does not change the basic similarity.  Java is a
! hybrid object-oriented language, with a few native types, in addition
! to class types.  It is class-based, where a class may have static as
! well as per-object fields, and static as well as instance methods.
  Non-static methods may be virtual, and may be overloaded.  Overloading
  is resolved at compile time by matching the actual argument types
  against the parameter types.  Virtual methods are implemented using
--- 2280,2288 ----
  In terms of languages features, Java is mostly a subset of C++.  Java
  has a few important extensions, plus a powerful standard class library,
  but on the whole that does not change the basic similarity.  Java is a
! hybrid object-oriented language, with a few native types, in addition to
! class types.  It is class-based, where a class may have static as well
! as per-object fields, and static as well as instance methods.
  Non-static methods may be virtual, and may be overloaded.  Overloading
  is resolved at compile time by matching the actual argument types
  against the parameter types.  Virtual methods are implemented using
*************** method.  Classes are organized in a pack
*** 2316,2328 ****
  
     All of the listed attributes are also true of C++, though C++ has
  extra features (for example in C++ objects may be allocated not just on
! the heap, but also statically or in a local stack frame).  Because
! `gcj' uses the same compiler technology as G++ (the GNU C++ compiler),
! it is possible to make the intersection of the two languages use the
! same ABI (object representation and calling conventions).  The key idea
! in CNI is that Java objects are C++ objects, and all Java classes are
! C++ classes (but not the other way around).  So the most important task
! in integrating Java and C++ is to remove gratuitous incompatibilities.
  
     You write CNI code as a regular C++ source file.  (You do have to use
  a Java/CNI-aware C++ compiler, specifically a recent version of G++.)
--- 2292,2304 ----
  
     All of the listed attributes are also true of C++, though C++ has
  extra features (for example in C++ objects may be allocated not just on
! the heap, but also statically or in a local stack frame).  Because 'gcj'
! uses the same compiler technology as G++ (the GNU C++ compiler), it is
! possible to make the intersection of the two languages use the same ABI
! (object representation and calling conventions).  The key idea in CNI is
! that Java objects are C++ objects, and all Java classes are C++ classes
! (but not the other way around).  So the most important task in
! integrating Java and C++ is to remove gratuitous incompatibilities.
  
     You write CNI code as a regular C++ source file.  (You do have to use
  a Java/CNI-aware C++ compiler, specifically a recent version of G++.)
*************** and then must include one header file fo
*** 2337,2350 ****
       #include <java/util/Date.h>
       #include <java/lang/IndexOutOfBoundsException.h>
  
! These header files are automatically generated by `gcjh'.
  
     CNI provides some functions and macros to make using Java objects and
  primitive types from C++ easier.  In general, these CNI functions and
! macros start with the `Jv' prefix, for example the function
! `JvNewObjectArray'.  This convention is used to avoid conflicts with
  other libraries.  Internal functions in CNI start with the prefix
! `_Jv_'.  You should not call these; if you find a need to, let us know
  and we will try to come up with an alternate solution.
  
  11.1.1 Limitations
--- 2313,2326 ----
       #include <java/util/Date.h>
       #include <java/lang/IndexOutOfBoundsException.h>
  
! These header files are automatically generated by 'gcjh'.
  
     CNI provides some functions and macros to make using Java objects and
  primitive types from C++ easier.  In general, these CNI functions and
! macros start with the 'Jv' prefix, for example the function
! 'JvNewObjectArray'.  This convention is used to avoid conflicts with
  other libraries.  Internal functions in CNI start with the prefix
! '_Jv_'.  You should not call these; if you find a need to, let us know
  and we will try to come up with an alternate solution.
  
  11.1.1 Limitations
*************** freed from the shackles of Java, a CNI C
*** 2355,2361 ****
  rules of the Java programming language.
  
     For example: it is not possible to declare a method in a CNI class
! that will take a C string (`char*') as an argument, or to declare a
  member variable of some non-Java datatype.
  
  
--- 2331,2337 ----
  rules of the Java programming language.
  
     For example: it is not possible to declare a method in a CNI class
! that will take a C string ('char*') as an argument, or to declare a
  member variable of some non-Java datatype.
  
  
*************** sub-packages.  Every class belongs to ei
*** 2370,2379 ****
  package that has a hierarchical and globally unique name.
  
     A Java package is mapped to a C++ "namespace".  The Java class
! `java.lang.String' is in the package `java.lang', which is a
! sub-package of `java'.  The C++ equivalent is the class
! `java::lang::String', which is in the namespace `java::lang' which is
! in the namespace `java'.
  
  Here is how you could express this:
  
--- 2346,2354 ----
  package that has a hierarchical and globally unique name.
  
     A Java package is mapped to a C++ "namespace".  The Java class
! 'java.lang.String' is in the package 'java.lang', which is a sub-package
! of 'java'.  The C++ equivalent is the class 'java::lang::String', which
! is in the namespace 'java::lang' which is in the namespace 'java'.
  
  Here is how you could express this:
  
*************** Here is how you could express this:
*** 2391,2397 ****
         ...
       };
  
! The `gcjh' tool automatically generates the necessary namespace
  declarations.
  
  11.2.1 Leaving out package names
--- 2366,2372 ----
         ...
       };
  
! The 'gcjh' tool automatically generates the necessary namespace
  declarations.
  
  11.2.1 Leaving out package names
*************** declarations.
*** 2400,2419 ****
  Always using the fully-qualified name of a java class can be tiresomely
  verbose.  Using the full qualified name also ties the code to a single
  package making code changes necessary should the class move from one
! package to another.  The Java `package' declaration specifies that the
! following class declarations are in the named package, without having
! to explicitly name the full package qualifiers.  The `package'
! declaration can be followed by zero or more `import' declarations, which
! allows either a single class or all the classes in a package to be
! named by a simple identifier.  C++ provides something similar with the
! `using' declaration and directive.
  
  In Java:
  
       import PACKAGE-NAME.CLASS-NAME;
  
  allows the program text to refer to CLASS-NAME as a shorthand for the
! fully qualified name: `PACKAGE-NAME.CLASS-NAME'.
  
  To achieve the same effect C++, you have to do this:
  
--- 2375,2394 ----
  Always using the fully-qualified name of a java class can be tiresomely
  verbose.  Using the full qualified name also ties the code to a single
  package making code changes necessary should the class move from one
! package to another.  The Java 'package' declaration specifies that the
! following class declarations are in the named package, without having to
! explicitly name the full package qualifiers.  The 'package' declaration
! can be followed by zero or more 'import' declarations, which allows
! either a single class or all the classes in a package to be named by a
! simple identifier.  C++ provides something similar with the 'using'
! declaration and directive.
  
  In Java:
  
       import PACKAGE-NAME.CLASS-NAME;
  
  allows the program text to refer to CLASS-NAME as a shorthand for the
! fully qualified name: 'PACKAGE-NAME.CLASS-NAME'.
  
  To achieve the same effect C++, you have to do this:
  
*************** Java can also cause imports on demand, l
*** 2423,2430 ****
  
       import PACKAGE-NAME.*;
  
! Doing this allows any class from the package PACKAGE-NAME to be
! referred to only by its class-name within the program text.
  
  The same effect can be achieved in C++ like this:
  
--- 2398,2405 ----
  
       import PACKAGE-NAME.*;
  
! Doing this allows any class from the package PACKAGE-NAME to be referred
! to only by its class-name within the program text.
  
  The same effect can be achieved in C++ like this:
  
*************** example) so CNI provides a special C++ t
*** 2444,2477 ****
  type:
  
  *Java type*    *C/C++ typename*   *Description*
! `char'         `jchar'            16 bit Unicode character
! `boolean'      `jboolean'         logical (true or false) values
! `byte'         `jbyte'            8-bit signed integer
! `short'        `jshort'           16 bit signed integer
! `int'          `jint'             32 bit signed integer
! `long'         `jlong'            64 bit signed integer
! `float'        `jfloat'           32 bit IEEE floating point number
! `double'       `jdouble'          64 bit IEEE floating point number
! `void'         `void'             no value
  
     When referring to a Java type You should always use these C++
! typenames (e.g.: `jint') to avoid disappointment.
  
  11.3.1 Reference types associated with primitive types
  ------------------------------------------------------
  
  In Java each primitive type has an associated reference type, e.g.:
! `boolean' has an associated `java.lang.Boolean.TYPE' class.  In order
! to make working with such classes easier GCJ provides the macro
! `JvPrimClass':
  
   -- macro: JvPrimClass type
!      Return a pointer to the `Class' object corresponding to the type
       supplied.
  
            JvPrimClass(void) => java.lang.Void.TYPE
  
- 
  
  File: gcj.info,  Node: Reference types,  Next: Interfaces,  Prev: Primitive types,  Up: About CNI
  
--- 2419,2451 ----
  type:
  
  *Java type*    *C/C++ typename*   *Description*
! 'char'         'jchar'            16 bit Unicode character
! 'boolean'      'jboolean'         logical (true or false) values
! 'byte'         'jbyte'            8-bit signed integer
! 'short'        'jshort'           16 bit signed integer
! 'int'          'jint'             32 bit signed integer
! 'long'         'jlong'            64 bit signed integer
! 'float'        'jfloat'           32 bit IEEE floating point number
! 'double'       'jdouble'          64 bit IEEE floating point number
! 'void'         'void'             no value
  
     When referring to a Java type You should always use these C++
! typenames (e.g.: 'jint') to avoid disappointment.
  
  11.3.1 Reference types associated with primitive types
  ------------------------------------------------------
  
  In Java each primitive type has an associated reference type, e.g.:
! 'boolean' has an associated 'java.lang.Boolean.TYPE' class.  In order to
! make working with such classes easier GCJ provides the macro
! 'JvPrimClass':
  
   -- macro: JvPrimClass type
!      Return a pointer to the 'Class' object corresponding to the type
       supplied.
  
            JvPrimClass(void) => java.lang.Void.TYPE
  
  
  File: gcj.info,  Node: Reference types,  Next: Interfaces,  Prev: Primitive types,  Up: About CNI
  
*************** File: gcj.info,  Node: Reference types,
*** 2480,2501 ****
  
  A Java reference type is treated as a class in C++.  Classes and
  interfaces are handled this way.  A Java reference is translated to a
! C++ pointer, so for instance a Java `java.lang.String' becomes, in C++,
! `java::lang::String *'.
  
     CNI provides a few built-in typedefs for the most common classes:
  *Java type*            *C++ typename*     *Description*
! `java.lang.Object'     `jobject'          Object type
! `java.lang.String'     `jstring'          String type
! `java.lang.Class'      `jclass'           Class type
!    
!    Every Java class or interface has a corresponding `Class' instance.
! These can be accessed in CNI via the static `class$' field of a class.
! The `class$' field is of type `Class' (and not `Class *'), so you will
! typically take the address of it.  
  
!    Here is how you can refer to the class of `String', which in Java
! would be written `String.class':
  
       using namespace java::lang;
       doSomething (&String::class$);
--- 2454,2475 ----
  
  A Java reference type is treated as a class in C++.  Classes and
  interfaces are handled this way.  A Java reference is translated to a
! C++ pointer, so for instance a Java 'java.lang.String' becomes, in C++,
! 'java::lang::String *'.
  
     CNI provides a few built-in typedefs for the most common classes:
  *Java type*            *C++ typename*     *Description*
! 'java.lang.Object'     'jobject'          Object type
! 'java.lang.String'     'jstring'          String type
! 'java.lang.Class'      'jclass'           Class type
  
!    Every Java class or interface has a corresponding 'Class' instance.
! These can be accessed in CNI via the static 'class$' field of a class.
! The 'class$' field is of type 'Class' (and not 'Class *'), so you will
! typically take the address of it.
! 
!    Here is how you can refer to the class of 'String', which in Java
! would be written 'String.class':
  
       using namespace java::lang;
       doSomething (&String::class$);
*************** File: gcj.info,  Node: Interfaces,  Next
*** 2509,2522 ****
  A Java class can "implement" zero or more "interfaces", in addition to
  inheriting from a single base class.
  
!    CNI allows CNI code to implement methods of interfaces.  You can
! also call methods through interface references, with some limitations.
  
!    CNI doesn't understand interface inheritance at all yet.  So, you
! can only call an interface method when the declared type of the field
! being called matches the interface which declares that method.  The
! workaround is to cast the interface reference to the right
! superinterface.
  
     For example if you have:
  
--- 2483,2495 ----
  A Java class can "implement" zero or more "interfaces", in addition to
  inheriting from a single base class.
  
!    CNI allows CNI code to implement methods of interfaces.  You can also
! call methods through interface references, with some limitations.
  
!    CNI doesn't understand interface inheritance at all yet.  So, you can
! only call an interface method when the declared type of the field being
! called matches the interface which declares that method.  The workaround
! is to cast the interface reference to the right superinterface.
  
     For example if you have:
  
*************** superinterface.
*** 2530,2537 ****
         void b();
       }
  
!    and declare a variable of type `B' in C++, you can't call `a()'
! unless you cast it to an `A' first.
  
  
  File: gcj.info,  Node: Objects and Classes,  Next: Class Initialization,  Prev: Interfaces,  Up: About CNI
--- 2503,2510 ----
         void b();
       }
  
!    and declare a variable of type 'B' in C++, you can't call 'a()'
! unless you cast it to an 'A' first.
  
  
  File: gcj.info,  Node: Objects and Classes,  Next: Class Initialization,  Prev: Interfaces,  Up: About CNI
*************** File: gcj.info,  Node: Objects and Class
*** 2542,2554 ****
  11.6.1 Classes
  --------------
  
! All Java classes are derived from `java.lang.Object'.  C++ does not
! have a unique root class, but we use the C++ class `java::lang::Object'
! as the C++ version of the `java.lang.Object' Java class.  All other
! Java classes are mapped into corresponding C++ classes derived from
! `java::lang::Object'.
  
!    Interface inheritance (the `implements' keyword) is currently not
  reflected in the C++ mapping.
  
  11.6.2 Object fields
--- 2515,2527 ----
  11.6.1 Classes
  --------------
  
! All Java classes are derived from 'java.lang.Object'.  C++ does not have
! a unique root class, but we use the C++ class 'java::lang::Object' as
! the C++ version of the 'java.lang.Object' Java class.  All other Java
! classes are mapped into corresponding C++ classes derived from
! 'java::lang::Object'.
  
!    Interface inheritance (the 'implements' keyword) is currently not
  reflected in the C++ mapping.
  
  11.6.2 Object fields
*************** reflected in the C++ mapping.
*** 2556,2573 ****
  
  Each object contains an object header, followed by the instance fields
  of the class, in order.  The object header consists of a single pointer
! to a dispatch or virtual function table.  (There may be extra fields
! _in front of_ the object, for example for memory management, but this
! is invisible to the application, and the reference to the object points
! to the dispatch table pointer.)
  
     The fields are laid out in the same order, alignment, and size as in
! C++.  Specifically, 8-bit and 16-bit native types (`byte', `short',
! `char', and `boolean') are _not_ widened to 32 bits.  Note that the
! Java VM does extend 8-bit and 16-bit types to 32 bits when on the VM
! stack or temporary registers.
  
!    If you include the `gcjh'-generated header for a class, you can
  access fields of Java classes in the _natural_ way.  For example, given
  the following Java class:
  
--- 2529,2546 ----
  
  Each object contains an object header, followed by the instance fields
  of the class, in order.  The object header consists of a single pointer
! to a dispatch or virtual function table.  (There may be extra fields _in
! front of_ the object, for example for memory management, but this is
! invisible to the application, and the reference to the object points to
! the dispatch table pointer.)
  
     The fields are laid out in the same order, alignment, and size as in
! C++.  Specifically, 8-bit and 16-bit native types ('byte', 'short',
! 'char', and 'boolean') are _not_ widened to 32 bits.  Note that the Java
! VM does extend 8-bit and 16-bit types to 32 bits when on the VM stack or
! temporary registers.
  
!    If you include the 'gcjh'-generated header for a class, you can
  access fields of Java classes in the _natural_ way.  For example, given
  the following Java class:
  
*************** the following Java class:
*** 2595,2603 ****
  ------------------------
  
  CNI does not strictly enforce the Java access specifiers, because Java
! permissions cannot be directly mapped into C++ permission.  Private
! Java fields and methods are mapped to private C++ fields and methods,
! but other fields and methods are mapped to public fields and methods.
  
  
  File: gcj.info,  Node: Class Initialization,  Next: Object allocation,  Prev: Objects and Classes,  Up: About CNI
--- 2568,2576 ----
  ------------------------
  
  CNI does not strictly enforce the Java access specifiers, because Java
! permissions cannot be directly mapped into C++ permission.  Private Java
! fields and methods are mapped to private C++ fields and methods, but
! other fields and methods are mapped to public fields and methods.
  
  
  File: gcj.info,  Node: Class Initialization,  Next: Object allocation,  Prev: Objects and Classes,  Up: About CNI
*************** File: gcj.info,  Node: Class Initializat
*** 2606,2649 ****
  =========================
  
  Java requires that each class be automatically initialized at the time
! of the first active use.  Initializing a class involves initializing
! the static fields, running code in class initializer methods, and
  initializing base classes.  There may also be some implementation
! specific actions, such as allocating `String' objects corresponding to
  string literals in the code.
  
!    The GCJ compiler inserts calls to `JvInitClass' at appropriate
! places to ensure that a class is initialized when required.  The C++
! compiler does not insert these calls automatically--it is the
! programmer's responsibility to make sure classes are initialized.
! However, this is fairly painless because of the conventions assumed by
! the Java system.
  
!    First, `libgcj' will make sure a class is initialized before an
! instance of that object is created.  This is one of the
! responsibilities of the `new' operation.  This is taken care of both in
! Java code, and in C++ code.  When G++ sees a `new' of a Java class, it
! will call a routine in `libgcj' to allocate the object, and that
! routine will take care of initializing the class.  Note however that
! this does not happen for Java arrays; you must allocate those using the
! appropriate CNI function.  It follows that you can access an instance
! field, or call an instance (non-static) method and be safe in the
! knowledge that the class and all of its base classes have been
! initialized.
  
     Invoking a static method is also safe.  This is because the Java
  compiler adds code to the start of a static method to make sure the
! class is initialized.  However, the C++ compiler does not add this
! extra code.  Hence, if you write a native static method using CNI, you
! are responsible for calling `JvInitClass' before doing anything else in
! the method (unless you are sure it is safe to leave it out).
  
     Accessing a static field also requires the class of the field to be
! initialized.  The Java compiler will generate code to call
! `JvInitClass' before getting or setting the field.  However, the C++
! compiler will not generate this extra code, so it is your
! responsibility to make sure the class is initialized before you access
! a static field from C++.
  
  
  File: gcj.info,  Node: Object allocation,  Next: Memory allocation,  Prev: Class Initialization,  Up: About CNI
--- 2579,2619 ----
  =========================
  
  Java requires that each class be automatically initialized at the time
! of the first active use.  Initializing a class involves initializing the
! static fields, running code in class initializer methods, and
  initializing base classes.  There may also be some implementation
! specific actions, such as allocating 'String' objects corresponding to
  string literals in the code.
  
!    The GCJ compiler inserts calls to 'JvInitClass' at appropriate places
! to ensure that a class is initialized when required.  The C++ compiler
! does not insert these calls automatically--it is the programmer's
! responsibility to make sure classes are initialized.  However, this is
! fairly painless because of the conventions assumed by the Java system.
  
!    First, 'libgcj' will make sure a class is initialized before an
! instance of that object is created.  This is one of the responsibilities
! of the 'new' operation.  This is taken care of both in Java code, and in
! C++ code.  When G++ sees a 'new' of a Java class, it will call a routine
! in 'libgcj' to allocate the object, and that routine will take care of
! initializing the class.  Note however that this does not happen for Java
! arrays; you must allocate those using the appropriate CNI function.  It
! follows that you can access an instance field, or call an instance
! (non-static) method and be safe in the knowledge that the class and all
! of its base classes have been initialized.
  
     Invoking a static method is also safe.  This is because the Java
  compiler adds code to the start of a static method to make sure the
! class is initialized.  However, the C++ compiler does not add this extra
! code.  Hence, if you write a native static method using CNI, you are
! responsible for calling 'JvInitClass' before doing anything else in the
! method (unless you are sure it is safe to leave it out).
  
     Accessing a static field also requires the class of the field to be
! initialized.  The Java compiler will generate code to call 'JvInitClass'
! before getting or setting the field.  However, the C++ compiler will not
! generate this extra code, so it is your responsibility to make sure the
! class is initialized before you access a static field from C++.
  
  
  File: gcj.info,  Node: Object allocation,  Next: Memory allocation,  Prev: Class Initialization,  Up: About CNI
*************** expression", e.g.:
*** 2660,2668 ****
  objects have to be explicitly deleted; in Java they are automatically
  deleted by the garbage collector.  Using CNI, you can allocate a new
  Java object using standard C++ syntax and the C++ compiler will allocate
! memory from the garbage collector.  If you have overloaded
! constructors, the compiler will choose the correct one using standard
! C++ overload resolution rules.
  
  For example:
  
--- 2630,2638 ----
  objects have to be explicitly deleted; in Java they are automatically
  deleted by the garbage collector.  Using CNI, you can allocate a new
  Java object using standard C++ syntax and the C++ compiler will allocate
! memory from the garbage collector.  If you have overloaded constructors,
! the compiler will choose the correct one using standard C++ overload
! resolution rules.
  
  For example:
  
*************** File: gcj.info,  Node: Memory allocation
*** 2674,2690 ****
  11.9 Memory allocation
  ======================
  
! When allocating memory in CNI methods it is best to handle
! out-of-memory conditions by throwing a Java exception.  These functions
! are provided for that purpose:
  
   -- Function: void* JvMalloc (jsize SIZE)
!      Calls malloc.  Throws `java.lang.OutOfMemoryError' if allocation
       fails.
  
   -- Function: void* JvRealloc (void* PTR, jsize SIZE)
!      Calls realloc.  Throws `java.lang.OutOfMemoryError' if
!      reallocation fails.
  
   -- Function: void JvFree (void* PTR)
       Calls free.
--- 2644,2660 ----
  11.9 Memory allocation
  ======================
  
! When allocating memory in CNI methods it is best to handle out-of-memory
! conditions by throwing a Java exception.  These functions are provided
! for that purpose:
  
   -- Function: void* JvMalloc (jsize SIZE)
!      Calls malloc.  Throws 'java.lang.OutOfMemoryError' if allocation
       fails.
  
   -- Function: void* JvRealloc (void* PTR, jsize SIZE)
!      Calls realloc.  Throws 'java.lang.OutOfMemoryError' if reallocation
!      fails.
  
   -- Function: void JvFree (void* PTR)
       Calls free.
*************** While in many ways Java is similar to C
*** 2699,2708 ****
  in its treatment of arrays.  C arrays are based on the idea of pointer
  arithmetic, which would be incompatible with Java's security
  requirements.  Java arrays are true objects (array types inherit from
! `java.lang.Object').  An array-valued variable is one that contains a
  reference (pointer) to an array object.
  
!    Referencing a Java array in C++ code is done using the `JArray'
  template, which as defined as follows:
  
       class __JArray : public java::lang::Object
--- 2669,2678 ----
  in its treatment of arrays.  C arrays are based on the idea of pointer
  arithmetic, which would be incompatible with Java's security
  requirements.  Java arrays are true objects (array types inherit from
! 'java.lang.Object').  An array-valued variable is one that contains a
  reference (pointer) to an array object.
  
!    Referencing a Java array in C++ code is done using the 'JArray'
  template, which as defined as follows:
  
       class __JArray : public java::lang::Object
*************** template, which as defined as follows:
*** 2719,2725 ****
         T& operator[](jint i) { return data[i]; }
       };
  
!    There are a number of `typedef's which correspond to `typedef's from
  the JNI.  Each is the type of an array holding objects of the relevant
  type:
  
--- 2689,2695 ----
         T& operator[](jint i) { return data[i]; }
       };
  
!    There are a number of 'typedef's which correspond to 'typedef's from
  the JNI.  Each is the type of an array holding objects of the relevant
  type:
  
*************** type:
*** 2735,2753 ****
       typedef JArray<jdouble> *jdoubleArray;
  
   -- Method on template<class T>: T* elements (JArray<T> ARRAY)
!      This template function can be used to get a pointer to the
!      elements of the `array'.  For instance, you can fetch a pointer to
!      the integers that make up an `int[]' like so:
  
            extern jintArray foo;
            jint *intp = elements (foo);
  
       The name of this function may change in the future.
  
!  -- Function: jobjectArray JvNewObjectArray (jsize LENGTH, jclass
!           KLASS, jobject INIT)
       This creates a new array whose elements have reference type.
!      `klass' is the type of elements of the array and `init' is the
       initial value put into every slot in the array.
  
       using namespace java::lang;
--- 2705,2723 ----
       typedef JArray<jdouble> *jdoubleArray;
  
   -- Method on template<class T>: T* elements (JArray<T> ARRAY)
!      This template function can be used to get a pointer to the elements
!      of the 'array'.  For instance, you can fetch a pointer to the
!      integers that make up an 'int[]' like so:
  
            extern jintArray foo;
            jint *intp = elements (foo);
  
       The name of this function may change in the future.
  
!  -- Function: jobjectArray JvNewObjectArray (jsize LENGTH, jclass KLASS,
!           jobject INIT)
       This creates a new array whose elements have reference type.
!      'klass' is the type of elements of the array and 'init' is the
       initial value put into every slot in the array.
  
       using namespace java::lang;
*************** File: gcj.info,  Node: Methods,  Next: S
*** 2784,2793 ****
  =============
  
  Java methods are mapped directly into C++ methods.  The header files
! generated by `gcjh' include the appropriate method definitions.
! Basically, the generated methods have the same names and
! _corresponding_ types as the Java methods, and are called in the
! natural manner.
  
  11.11.1 Overloading
  -------------------
--- 2754,2762 ----
  =============
  
  Java methods are mapped directly into C++ methods.  The header files
! generated by 'gcjh' include the appropriate method definitions.
! Basically, the generated methods have the same names and _corresponding_
! types as the Java methods, and are called in the natural manner.
  
  11.11.1 Overloading
  -------------------
*************** Both Java and C++ provide method overloa
*** 2796,2807 ****
  a class have the same name, and the correct one is chosen (at compile
  time) depending on the argument types.  The rules for choosing the
  correct method are (as expected) more complicated in C++ than in Java,
! but given a set of overloaded methods generated by `gcjh' the C++
  compiler will choose the expected one.
  
     Common assemblers and linkers are not aware of C++ overloading, so
! the standard implementation strategy is to encode the parameter types
! of a method into its assembly-level name.  This encoding is called
  "mangling", and the encoded name is the "mangled name".  The same
  mechanism is used to implement Java overloading.  For C++/Java
  interoperability, it is important that both the Java and C++ compilers
--- 2765,2776 ----
  a class have the same name, and the correct one is chosen (at compile
  time) depending on the argument types.  The rules for choosing the
  correct method are (as expected) more complicated in C++ than in Java,
! but given a set of overloaded methods generated by 'gcjh' the C++
  compiler will choose the expected one.
  
     Common assemblers and linkers are not aware of C++ overloading, so
! the standard implementation strategy is to encode the parameter types of
! a method into its assembly-level name.  This encoding is called
  "mangling", and the encoded name is the "mangled name".  The same
  mechanism is used to implement Java overloading.  For C++/Java
  interoperability, it is important that both the Java and C++ compilers
*************** use the _same_ encoding scheme.
*** 2811,2817 ****
  ----------------------
  
  Static Java methods are invoked in CNI using the standard C++ syntax,
! using the `::' operator rather than the `.' operator.
  
  For example:
  
--- 2780,2786 ----
  ----------------------
  
  Static Java methods are invoked in CNI using the standard C++ syntax,
! using the '::' operator rather than the '.' operator.
  
  For example:
  
*************** For example:
*** 2831,2845 ****
  ---------------------------
  
  Constructors are called implicitly as part of object allocation using
! the `new' operator.
  
  For example:
  
       java::lang::Integer *x = new java::lang::Integer(234);
  
     Java does not allow a constructor to be a native method.  This
! limitation can be coded round however because a constructor can _call_
! a native method.
  
  11.11.4 Instance methods
  ------------------------
--- 2800,2814 ----
  ---------------------------
  
  Constructors are called implicitly as part of object allocation using
! the 'new' operator.
  
  For example:
  
       java::lang::Integer *x = new java::lang::Integer(234);
  
     Java does not allow a constructor to be a native method.  This
! limitation can be coded round however because a constructor can _call_ a
! native method.
  
  11.11.4 Instance methods
  ------------------------
*************** File: gcj.info,  Node: Strings,  Next: M
*** 2877,2911 ****
  =============
  
  CNI provides a number of utility functions for working with Java Java
! `String' objects.  The names and interfaces are analogous to those of
  JNI.
  
   -- Function: jstring JvNewString (const jchar* CHARS, jsize LEN)
!      Returns a Java `String' object with characters from the array of
       Unicode characters CHARS up to the index LEN in that array.
  
   -- Function: jstring JvNewStringLatin1 (const char* BYTES, jsize LEN)
!      Returns a Java `String' made up of LEN bytes from BYTES.
  
   -- Function: jstring JvNewStringLatin1 (const char* BYTES)
!      As above but the length of the `String' is `strlen(BYTES)'.
  
   -- Function: jstring JvNewStringUTF (const char* BYTES)
!      Returns a `String' which is made up of the UTF encoded characters
       present in the C string BYTES.
  
   -- Function: jchar* JvGetStringChars (jstring STR)
!      Returns a pointer to an array of characters making up the `String'
       STR.
  
   -- Function: int JvGetStringUTFLength (jstring STR)
       Returns the number of bytes required to encode the contents of the
!      `String' STR in UTF-8.
  
   -- Function: jsize JvGetStringUTFRegion (jstring STR, jsize START,
            jsize LEN, char* BUF)
!      Puts the UTF-8 encoding of a region of the `String' STR into the
!      buffer `buf'.  The region to fetch is marked by START and LEN.
  
       Note that BUF is a buffer, not a C string.  It is _not_ null
       terminated.
--- 2846,2880 ----
  =============
  
  CNI provides a number of utility functions for working with Java Java
! 'String' objects.  The names and interfaces are analogous to those of
  JNI.
  
   -- Function: jstring JvNewString (const jchar* CHARS, jsize LEN)
!      Returns a Java 'String' object with characters from the array of
       Unicode characters CHARS up to the index LEN in that array.
  
   -- Function: jstring JvNewStringLatin1 (const char* BYTES, jsize LEN)
!      Returns a Java 'String' made up of LEN bytes from BYTES.
  
   -- Function: jstring JvNewStringLatin1 (const char* BYTES)
!      As above but the length of the 'String' is 'strlen(BYTES)'.
  
   -- Function: jstring JvNewStringUTF (const char* BYTES)
!      Returns a 'String' which is made up of the UTF encoded characters
       present in the C string BYTES.
  
   -- Function: jchar* JvGetStringChars (jstring STR)
!      Returns a pointer to an array of characters making up the 'String'
       STR.
  
   -- Function: int JvGetStringUTFLength (jstring STR)
       Returns the number of bytes required to encode the contents of the
!      'String' STR in UTF-8.
  
   -- Function: jsize JvGetStringUTFRegion (jstring STR, jsize START,
            jsize LEN, char* BUF)
!      Puts the UTF-8 encoding of a region of the 'String' STR into the
!      buffer 'buf'.  The region to fetch is marked by START and LEN.
  
       Note that BUF is a buffer, not a C string.  It is _not_ null
       terminated.
*************** None of the following is possible with C
*** 2938,2944 ****
         .
         .
         .
!      }   // `uint' is not a valid Java type, neither is `char*'
  
  Of course, it is ok to use C/C++ types within the scope of a method:
  
--- 2907,2913 ----
         .
         .
         .
!      }   // 'uint' is not a valid Java type, neither is 'char*'
  
  Of course, it is ok to use C/C++ types within the scope of a method:
  
*************** Of course, it is ok to use C/C++ types w
*** 2955,2962 ****
  ---------------
  
  The above restriction can be problematic, so CNI includes the
! `gnu.gcj.RawData' class.  The `RawData' class is a "non-scanned
! reference" type.  In other words variables declared of type `RawData'
  can contain any data and are not checked by the compiler or memory
  manager in any way.
  
--- 2924,2931 ----
  ---------------
  
  The above restriction can be problematic, so CNI includes the
! 'gnu.gcj.RawData' class.  The 'RawData' class is a "non-scanned
! reference" type.  In other words variables declared of type 'RawData'
  can contain any data and are not checked by the compiler or memory
  manager in any way.
  
*************** Here are some examples:
*** 2996,3008 ****
  11.13.2 RawDataManaged
  ----------------------
  
! `gnu.gcj.RawDataManaged' is another type used to indicate special data
! used by native code. Unlike the `RawData' type, fields declared as
! `RawDataManaged' will be "marked" by the memory manager and considered
  for garbage collection.
  
!    Native data which is allocated using CNI's `JvAllocBytes()' function
! and stored in a `RawDataManaged' will be automatically freed when the
  Java object it is associated with becomes unreachable.
  
  11.13.3 Native memory allocation
--- 2965,2977 ----
  11.13.2 RawDataManaged
  ----------------------
  
! 'gnu.gcj.RawDataManaged' is another type used to indicate special data
! used by native code.  Unlike the 'RawData' type, fields declared as
! 'RawDataManaged' will be "marked" by the memory manager and considered
  for garbage collection.
  
!    Native data which is allocated using CNI's 'JvAllocBytes()' function
! and stored in a 'RawDataManaged' will be automatically freed when the
  Java object it is associated with becomes unreachable.
  
  11.13.3 Native memory allocation
*************** Java object it is associated with become
*** 3014,3035 ****
       but will be freed if no references to it are discovered.
  
       This function can be useful if you need to associate some native
!      data with a Java object. Using a CNI's special `RawDataManaged'
!      type, native data allocated with `JvAllocBytes' will be
       automatically freed when the Java object itself becomes
       unreachable.
  
  11.13.4 Posix signals
  ---------------------
  
! On Posix based systems the `libgcj' library uses several signals
  internally.  CNI code should not attempt to use the same signals as
! doing so may cause `libgcj' and/or the CNI code to fail.
  
!    SIGSEGV is used on many systems to generate `NullPointerExceptions'.
! SIGCHLD is used internally by `Runtime.exec()'.  Several other signals
  (that vary from platform to platform) can be used by the memory manager
! and by `Thread.interrupt()'.
  
  
  File: gcj.info,  Node: Exception Handling,  Next: Synchronization,  Prev: Mixing with C++,  Up: About CNI
--- 2983,3004 ----
       but will be freed if no references to it are discovered.
  
       This function can be useful if you need to associate some native
!      data with a Java object.  Using a CNI's special 'RawDataManaged'
!      type, native data allocated with 'JvAllocBytes' will be
       automatically freed when the Java object itself becomes
       unreachable.
  
  11.13.4 Posix signals
  ---------------------
  
! On Posix based systems the 'libgcj' library uses several signals
  internally.  CNI code should not attempt to use the same signals as
! doing so may cause 'libgcj' and/or the CNI code to fail.
  
!    SIGSEGV is used on many systems to generate 'NullPointerExceptions'.
! SIGCHLD is used internally by 'Runtime.exec()'.  Several other signals
  (that vary from platform to platform) can be used by the memory manager
! and by 'Thread.interrupt()'.
  
  
  File: gcj.info,  Node: Exception Handling,  Next: Synchronization,  Prev: Mixing with C++,  Up: About CNI
*************** are not yet perfectly integrated.  The m
*** 3042,3061 ****
  type information facilities of the two languages are not integrated.
  
     Still, things work fairly well.  You can throw a Java exception from
! C++ using the ordinary `throw' construct, and this exception can be
  caught by Java code.  Similarly, you can catch an exception thrown from
! Java using the C++ `catch' construct.
  
  Here is an example:
  
       if (i >= count)
          throw new java::lang::IndexOutOfBoundsException();
  
!    Normally, G++ will automatically detect when you are writing C++
! code that uses Java exceptions, and handle them appropriately.
! However, if C++ code only needs to execute destructors when Java
! exceptions are thrown through it, GCC will guess incorrectly.  Sample
! problematic code:
  
       struct S { ~S(); };
  
--- 3011,3029 ----
  type information facilities of the two languages are not integrated.
  
     Still, things work fairly well.  You can throw a Java exception from
! C++ using the ordinary 'throw' construct, and this exception can be
  caught by Java code.  Similarly, you can catch an exception thrown from
! Java using the C++ 'catch' construct.
  
  Here is an example:
  
       if (i >= count)
          throw new java::lang::IndexOutOfBoundsException();
  
!    Normally, G++ will automatically detect when you are writing C++ code
! that uses Java exceptions, and handle them appropriately.  However, if
! C++ code only needs to execute destructors when Java exceptions are
! thrown through it, GCC will guess incorrectly.  Sample problematic code:
  
       struct S { ~S(); };
  
*************** problematic code:
*** 3067,3078 ****
         bar();
       }
  
!    The usual effect of an incorrect guess is a link failure,
! complaining of a missing routine called `__gxx_personality_v0'.
  
     You can inform the compiler that Java exceptions are to be used in a
  translation unit, irrespective of what it might think, by writing
! `#pragma GCC java_exceptions' at the head of the file.  This `#pragma'
  must appear before any functions that throw or catch exceptions, or run
  destructors when exceptions are thrown through them.
  
--- 3035,3046 ----
         bar();
       }
  
!    The usual effect of an incorrect guess is a link failure, complaining
! of a missing routine called '__gxx_personality_v0'.
  
     You can inform the compiler that Java exceptions are to be used in a
  translation unit, irrespective of what it might think, by writing
! '#pragma GCC java_exceptions' at the head of the file.  This '#pragma'
  must appear before any functions that throw or catch exceptions, or run
  destructors when exceptions are thrown through them.
  
*************** File: gcj.info,  Node: Synchronization,
*** 3083,3101 ****
  =====================
  
  Each Java object has an implicit monitor.  The Java VM uses the
! instruction `monitorenter' to acquire and lock a monitor, and
! `monitorexit' to release it.
  
!    The corresponding CNI macros are `JvMonitorEnter' and
! `JvMonitorExit' (JNI has similar  methods `MonitorEnter' and
! `MonitorExit').
  
     The Java source language does not provide direct access to these
! primitives.  Instead, there is a `synchronized' statement that does an
! implicit `monitorenter' before entry to the block, and does a
! `monitorexit' on exit from the block.  Note that the lock has to be
  released even when the block is abnormally terminated by an exception,
! which means there is an implicit `try finally' surrounding
  synchronization locks.
  
     From C++, it makes sense to use a destructor to release a lock.  CNI
--- 3051,3068 ----
  =====================
  
  Each Java object has an implicit monitor.  The Java VM uses the
! instruction 'monitorenter' to acquire and lock a monitor, and
! 'monitorexit' to release it.
  
!    The corresponding CNI macros are 'JvMonitorEnter' and 'JvMonitorExit'
! (JNI has similar methods 'MonitorEnter' and 'MonitorExit').
  
     The Java source language does not provide direct access to these
! primitives.  Instead, there is a 'synchronized' statement that does an
! implicit 'monitorenter' before entry to the block, and does a
! 'monitorexit' on exit from the block.  Note that the lock has to be
  released even when the block is abnormally terminated by an exception,
! which means there is an implicit 'try finally' surrounding
  synchronization locks.
  
     From C++, it makes sense to use a destructor to release a lock.  CNI
*************** might become this C++ code:
*** 3121,3136 ****
          CODE;
       }
  
!    Java also has methods with the `synchronized' attribute.  This is
! equivalent to wrapping the entire method body in a `synchronized'
  statement.  (Alternatively, an implementation could require the caller
  to do the synchronization.  This is not practical for a compiler,
  because each virtual method call would have to test at run-time if
! synchronization is needed.)  Since in `gcj' the `synchronized'
! attribute is handled by the method implementation, it is up to the
! programmer of a synchronized native method to handle the synchronization
! (in the C++ implementation of the method).  In other words, you need to
! manually add `JvSynchronize' in a `native synchronized' method.
  
  
  File: gcj.info,  Node: Invocation,  Next: Reflection,  Prev: Synchronization,  Up: About CNI
--- 3088,3103 ----
          CODE;
       }
  
!    Java also has methods with the 'synchronized' attribute.  This is
! equivalent to wrapping the entire method body in a 'synchronized'
  statement.  (Alternatively, an implementation could require the caller
  to do the synchronization.  This is not practical for a compiler,
  because each virtual method call would have to test at run-time if
! synchronization is needed.)  Since in 'gcj' the 'synchronized' attribute
! is handled by the method implementation, it is up to the programmer of a
! synchronized native method to handle the synchronization (in the C++
! implementation of the method).  In other words, you need to manually add
! 'JvSynchronize' in a 'native synchronized' method.
  
  
  File: gcj.info,  Node: Invocation,  Next: Reflection,  Prev: Synchronization,  Up: About CNI
*************** File: gcj.info,  Node: Invocation,  Next
*** 3139,3160 ****
  ================
  
  CNI permits C++ applications to make calls into Java classes, in
! addition to allowing Java code to call into C++. Several functions,
  known as the "invocation API", are provided to support this.
  
   -- Function: jint JvCreateJavaVM (JvVMInitArgs* VM_ARGS)
!      Initializes the Java runtime. This function performs essential
       initialization of the threads interface, garbage collector,
!      exception handling and other key aspects of the runtime. It must
!      be called once by an application with a non-Java `main()'
!      function, before any other Java or CNI calls are made.  It is
!      safe, but not recommended, to call `JvCreateJavaVM()' more than
!      once provided it is only called from a single thread.  The VMARGS
!      parameter can be used to specify initialization parameters for the
!      Java runtime. It may be `NULL'.
  
       JvVMInitArgs represents a list of virtual machine initialization
!      arguments. `JvCreateJavaVM()' ignores the version field.
  
            typedef struct JvVMOption
            {
--- 3106,3128 ----
  ================
  
  CNI permits C++ applications to make calls into Java classes, in
! addition to allowing Java code to call into C++.  Several functions,
  known as the "invocation API", are provided to support this.
  
   -- Function: jint JvCreateJavaVM (JvVMInitArgs* VM_ARGS)
! 
!      Initializes the Java runtime.  This function performs essential
       initialization of the threads interface, garbage collector,
!      exception handling and other key aspects of the runtime.  It must
!      be called once by an application with a non-Java 'main()' function,
!      before any other Java or CNI calls are made.  It is safe, but not
!      recommended, to call 'JvCreateJavaVM()' more than once provided it
!      is only called from a single thread.  The VMARGS parameter can be
!      used to specify initialization parameters for the Java runtime.  It
!      may be 'NULL'.
  
       JvVMInitArgs represents a list of virtual machine initialization
!      arguments.  'JvCreateJavaVM()' ignores the version field.
  
            typedef struct JvVMOption
            {
*************** known as the "invocation API", are provi
*** 3179,3218 ****
              jboolean ignoreUnrecognized;
            } JvVMInitArgs;
  
!      `JvCreateJavaVM()' returns `0' upon success, or `-1' if the
!      runtime is already initialized.
  
!      _Note:_ In GCJ 3.1, the `vm_args' parameter is ignored. It is
       recognized and used as of release 4.0.
  
   -- Function: java::lang::Thread* JvAttachCurrentThread (jstring NAME,
            java::lang::ThreadGroup* GROUP)
       Registers an existing thread with the Java runtime.  This must be
       called once from each thread, before that thread makes any other
!      Java or CNI calls. It must be called after `JvCreateJavaVM'.  NAME
!      specifies a name for the thread. It may be `NULL', in which case a
       name will be generated.  GROUP is the ThreadGroup in which this
!      thread will be a member. If it is `NULL', the thread will be a
       member of the main thread group.  The return value is the Java
!      `Thread' object that represents the thread.  It is safe to call
!      `JvAttachCurrentThread()' more than once from the same thread. If
       the thread is already attached, the call is ignored and the current
       thread object is returned.
  
   -- Function: jint JvDetachCurrentThread ()
!      Unregisters a thread from the Java runtime. This should be called
!      by threads that were attached using `JvAttachCurrentThread()',
!      after they have finished making calls to Java code. This ensures
       that any resources associated with the thread become eligible for
!      garbage collection.  This function returns `0' upon success, or
!      `-1' if the current thread is not attached.
  
  11.16.1 Handling uncaught exceptions
  ------------------------------------
  
  If an exception is thrown from Java code called using the invocation
  API, and no handler for the exception can be found, the runtime will
! abort the application. In order to make the application more robust, it
  is recommended that code which uses the invocation API be wrapped by a
  top-level try/catch block that catches all Java exceptions.
  
--- 3147,3186 ----
              jboolean ignoreUnrecognized;
            } JvVMInitArgs;
  
!      'JvCreateJavaVM()' returns '0' upon success, or '-1' if the runtime
!      is already initialized.
  
!      _Note:_ In GCJ 3.1, the 'vm_args' parameter is ignored.  It is
       recognized and used as of release 4.0.
  
   -- Function: java::lang::Thread* JvAttachCurrentThread (jstring NAME,
            java::lang::ThreadGroup* GROUP)
       Registers an existing thread with the Java runtime.  This must be
       called once from each thread, before that thread makes any other
!      Java or CNI calls.  It must be called after 'JvCreateJavaVM'.  NAME
!      specifies a name for the thread.  It may be 'NULL', in which case a
       name will be generated.  GROUP is the ThreadGroup in which this
!      thread will be a member.  If it is 'NULL', the thread will be a
       member of the main thread group.  The return value is the Java
!      'Thread' object that represents the thread.  It is safe to call
!      'JvAttachCurrentThread()' more than once from the same thread.  If
       the thread is already attached, the call is ignored and the current
       thread object is returned.
  
   -- Function: jint JvDetachCurrentThread ()
!      Unregisters a thread from the Java runtime.  This should be called
!      by threads that were attached using 'JvAttachCurrentThread()',
!      after they have finished making calls to Java code.  This ensures
       that any resources associated with the thread become eligible for
!      garbage collection.  This function returns '0' upon success, or
!      '-1' if the current thread is not attached.
  
  11.16.1 Handling uncaught exceptions
  ------------------------------------
  
  If an exception is thrown from Java code called using the invocation
  API, and no handler for the exception can be found, the runtime will
! abort the application.  In order to make the application more robust, it
  is recommended that code which uses the invocation API be wrapped by a
  top-level try/catch block that catches all Java exceptions.
  
*************** top-level try/catch block that catches a
*** 3221,3233 ****
  
  The following code demonstrates the use of the invocation API. In this
  example, the C++ application initializes the Java runtime and attaches
! itself. The `java.lang.System' class is initialized in order to access
! its `out' field, and a Java string is printed. Finally, the thread is
  detached from the runtime once it has finished making Java calls.
  Everything is wrapped with a try/catch block to provide a default
  handler for any uncaught exceptions.
  
!    The example can be compiled with `c++ -c test.cc; gcj test.o'.
  
       // test.cc
       #include <gcj/cni.h>
--- 3189,3201 ----
  
  The following code demonstrates the use of the invocation API. In this
  example, the C++ application initializes the Java runtime and attaches
! itself.  The 'java.lang.System' class is initialized in order to access
! its 'out' field, and a Java string is printed.  Finally, the thread is
  detached from the runtime once it has finished making Java calls.
  Everything is wrapped with a try/catch block to provide a default
  handler for any uncaught exceptions.
  
!    The example can be compiled with 'c++ -c test.cc; gcj test.o'.
  
       // test.cc
       #include <gcj/cni.h>
*************** File: gcj.info,  Node: Reflection,  Prev
*** 3266,3282 ****
  Reflection is possible with CNI code, it functions similarly to how it
  functions with JNI.
  
!    The types `jfieldID' and `jmethodID' are as in JNI.
  
  The functions:
  
!    * `JvFromReflectedField',
! 
!    * `JvFromReflectedMethod',
! 
!    * `JvToReflectedField'
! 
!    * `JvToFromReflectedMethod'
  
  will be added shortly, as will other functions corresponding to JNI.
  
--- 3234,3247 ----
  Reflection is possible with CNI code, it functions similarly to how it
  functions with JNI.
  
!    The types 'jfieldID' and 'jmethodID' are as in JNI.
  
  The functions:
  
!    * 'JvFromReflectedField',
!    * 'JvFromReflectedMethod',
!    * 'JvToReflectedField'
!    * 'JvToFromReflectedMethod'
  
  will be added shortly, as will other functions corresponding to JNI.
  
*************** File: gcj.info,  Node: System properties
*** 3286,3305 ****
  12 System properties
  ********************
  
! The runtime behavior of the `libgcj' library can be modified by setting
  certain system properties.  These properties can be compiled into the
! program using the `-DNAME[=VALUE]' option to `gcj' or by setting them
  explicitly in the program by calling the
! `java.lang.System.setProperty()' method.  Some system properties are
  only used for informational purposes (like giving a version number or a
  user name).  A program can inspect the current value of a property by
! calling the `java.lang.System.getProperty()' method.
  
  * Menu:
  
! * Standard Properties::         Standard properties supported by `libgcj'
  * GNU Classpath Properties::    Properties found in Classpath based libraries
! * libgcj Runtime Properties::   Properties specific to `libgcj'
  
  
  File: gcj.info,  Node: Standard Properties,  Next: GNU Classpath Properties,  Up: System properties
--- 3251,3270 ----
  12 System properties
  ********************
  
! The runtime behavior of the 'libgcj' library can be modified by setting
  certain system properties.  These properties can be compiled into the
! program using the '-DNAME[=VALUE]' option to 'gcj' or by setting them
  explicitly in the program by calling the
! 'java.lang.System.setProperty()' method.  Some system properties are
  only used for informational purposes (like giving a version number or a
  user name).  A program can inspect the current value of a property by
! calling the 'java.lang.System.getProperty()' method.
  
  * Menu:
  
! * Standard Properties::         Standard properties supported by 'libgcj'
  * GNU Classpath Properties::    Properties found in Classpath based libraries
! * libgcj Runtime Properties::   Properties specific to 'libgcj'
  
  
  File: gcj.info,  Node: Standard Properties,  Next: GNU Classpath Properties,  Up: System properties
*************** File: gcj.info,  Node: Standard Properti
*** 3310,3487 ****
  The following properties are normally found in all implementations of
  the core libraries for the Java language.
  
! `java.version'
!      The `libgcj' version number.
  
! `java.vendor'
!      Set to `The Free Software Foundation, Inc.'
  
! `java.vendor.url'
!      Set to `http://gcc.gnu.org/java/'.
  
! `java.home'
!      The directory where `gcj' was installed.  Taken from the `--prefix'
!      option given to `configure'.
  
! `java.class.version'
       The class format version number supported by the libgcj byte code
!      interpreter.  (Currently `46.0')
  
! `java.vm.specification.version'
!      The Virtual Machine Specification version implemented by `libgcj'.
!      (Currently `1.0')
  
! `java.vm.specification.vendor'
       The name of the Virtual Machine specification designer.
  
! `java.vm.specification.name'
!      The name of the Virtual Machine specification (Set to `Java
!      Virtual Machine Specification').
  
! `java.vm.version'
!      The `gcj' version number.
  
! `java.vm.vendor'
!      Set to `The Free Software Foundation, Inc.'
  
! `java.vm.name'
!      Set to `GNU libgcj'.
  
! `java.specification.version'
       The Runtime Environment specification version implemented by
!      `libgcj'.  (Currently set to `1.3')
  
! `java.specification.vendor'
       The Runtime Environment specification designer.
  
! `java.specification.name'
!      The name of the Runtime Environment specification (Set to `Java
       Platform API Specification').
  
! `java.class.path'
       The paths (jar files, zip files and directories) used for finding
       class files.
  
! `java.library.path'
       Directory path used for finding native libraries.
  
! `java.io.tmpdir'
       The directory used to put temporary files in.
  
! `java.compiler'
       Name of the Just In Time compiler to use by the byte code
!      interpreter.  Currently not used in `libgcj'.
  
! `java.ext.dirs'
       Directories containing jar files with extra libraries.  Will be
       used when resolving classes.
  
! `java.protocol.handler.pkgs'
!      A `|' separated list of package names that is used to find classes
!      that implement handlers for `java.net.URL'.
  
! `java.rmi.server.codebase'
!      A list of URLs that is used by the `java.rmi.server.RMIClassLoader'
       to load classes from.
  
! `jdbc.drivers'
       A list of class names that will be loaded by the
!      `java.sql.DriverManager' when it starts up.
  
! `file.separator'
       The separator used in when directories are included in a filename
!      (normally `/' or `\' ).
  
! `file.encoding'
!      The default character encoding used when converting platform
!      native files to Unicode (usually set to `8859_1').
  
! `path.separator'
       The standard separator used when a string contains multiple paths
!      (normally `:' or `;'), the string is usually not a valid character
       to use in normal directory names.)
  
! `line.separator'
!      The default line separator used on the platform (normally `\n',
!      `\r' or a combination of those two characters).
  
! `policy.provider'
       The class name used for the default policy provider returned by
!      `java.security.Policy.getPolicy'.
  
! `user.name'
       The name of the user running the program.  Can be the full name,
       the login name or empty if unknown.
  
! `user.home'
       The default directory to put user specific files in.
  
! `user.dir'
       The current working directory from which the program was started.
  
! `user.language'
!      The default language as used by the `java.util.Locale' class.
  
! `user.region'
!      The default region as used by the `java.util.Local' class.
  
! `user.variant'
       The default variant of the language and region local used.
  
! `user.timezone'
!      The default timezone as used by the `java.util.TimeZone' class.
  
! `os.name'
       The operating system/kernel name that the program runs on.
  
! `os.arch'
       The hardware that we are running on.
  
! `os.version'
       The version number of the operating system/kernel.
  
! `awt.appletWarning'
       The string to display when an untrusted applet is displayed.
!      Returned by `java.awt.Window.getWarningString()' when the window is
       "insecure".
  
! `awt.toolkit'
       The class name used for initializing the default
!      `java.awt.Toolkit'.  Defaults to `gnu.awt.gtk.GtkToolkit'.
  
! `http.proxyHost'
       Name of proxy host for http connections.
  
! `http.proxyPort'
       Port number to use when a proxy host is in use.
  
- 
  
  File: gcj.info,  Node: GNU Classpath Properties,  Next: libgcj Runtime Properties,  Prev: Standard Properties,  Up: System properties
  
  12.2 GNU Classpath Properties
  =============================
  
! `libgcj' is based on the GNU Classpath (Essential Libraries for Java) a
  GNU project to create free core class libraries for use with virtual
  machines and compilers for the Java language.  The following properties
  are common to libraries based on GNU Classpath.
  
! `gcj.dumpobject'
       Enables printing serialization debugging by the
!      `java.io.ObjectInput' and `java.io.ObjectOutput' classes when set
       to something else then the empty string.  Only used when running a
       debug build of the library.
  
! `gnu.classpath.vm.shortname'
!      This is a succinct name of the virtual machine.  For `libgcj',
!      this will always be `libgcj'.
  
! `gnu.classpath.home.url'
       A base URL used for finding system property files (e.g.,
!      `classpath.security').  By default this is a `file:' URL pointing
!      to the `lib' directory under `java.home'.
! 
  
  
  File: gcj.info,  Node: libgcj Runtime Properties,  Prev: GNU Classpath Properties,  Up: System properties
--- 3275,3450 ----
  The following properties are normally found in all implementations of
  the core libraries for the Java language.
  
! 'java.version'
!      The 'libgcj' version number.
  
! 'java.vendor'
!      Set to 'The Free Software Foundation, Inc.'
  
! 'java.vendor.url'
!      Set to <http://gcc.gnu.org/java/>.
  
! 'java.home'
!      The directory where 'gcj' was installed.  Taken from the '--prefix'
!      option given to 'configure'.
  
! 'java.class.version'
       The class format version number supported by the libgcj byte code
!      interpreter.  (Currently '46.0')
  
! 'java.vm.specification.version'
!      The Virtual Machine Specification version implemented by 'libgcj'.
!      (Currently '1.0')
  
! 'java.vm.specification.vendor'
       The name of the Virtual Machine specification designer.
  
! 'java.vm.specification.name'
!      The name of the Virtual Machine specification (Set to 'Java Virtual
!      Machine Specification').
  
! 'java.vm.version'
!      The 'gcj' version number.
  
! 'java.vm.vendor'
!      Set to 'The Free Software Foundation, Inc.'
  
! 'java.vm.name'
!      Set to 'GNU libgcj'.
  
! 'java.specification.version'
       The Runtime Environment specification version implemented by
!      'libgcj'.  (Currently set to '1.3')
  
! 'java.specification.vendor'
       The Runtime Environment specification designer.
  
! 'java.specification.name'
!      The name of the Runtime Environment specification (Set to 'Java
       Platform API Specification').
  
! 'java.class.path'
       The paths (jar files, zip files and directories) used for finding
       class files.
  
! 'java.library.path'
       Directory path used for finding native libraries.
  
! 'java.io.tmpdir'
       The directory used to put temporary files in.
  
! 'java.compiler'
       Name of the Just In Time compiler to use by the byte code
!      interpreter.  Currently not used in 'libgcj'.
  
! 'java.ext.dirs'
       Directories containing jar files with extra libraries.  Will be
       used when resolving classes.
  
! 'java.protocol.handler.pkgs'
!      A '|' separated list of package names that is used to find classes
!      that implement handlers for 'java.net.URL'.
  
! 'java.rmi.server.codebase'
!      A list of URLs that is used by the 'java.rmi.server.RMIClassLoader'
       to load classes from.
  
! 'jdbc.drivers'
       A list of class names that will be loaded by the
!      'java.sql.DriverManager' when it starts up.
  
! 'file.separator'
       The separator used in when directories are included in a filename
!      (normally '/' or '\' ).
  
! 'file.encoding'
!      The default character encoding used when converting platform native
!      files to Unicode (usually set to '8859_1').
  
! 'path.separator'
       The standard separator used when a string contains multiple paths
!      (normally ':' or ';'), the string is usually not a valid character
       to use in normal directory names.)
  
! 'line.separator'
!      The default line separator used on the platform (normally '\n',
!      '\r' or a combination of those two characters).
  
! 'policy.provider'
       The class name used for the default policy provider returned by
!      'java.security.Policy.getPolicy'.
  
! 'user.name'
       The name of the user running the program.  Can be the full name,
       the login name or empty if unknown.
  
! 'user.home'
       The default directory to put user specific files in.
  
! 'user.dir'
       The current working directory from which the program was started.
  
! 'user.language'
!      The default language as used by the 'java.util.Locale' class.
  
! 'user.region'
!      The default region as used by the 'java.util.Local' class.
  
! 'user.variant'
       The default variant of the language and region local used.
  
! 'user.timezone'
!      The default timezone as used by the 'java.util.TimeZone' class.
  
! 'os.name'
       The operating system/kernel name that the program runs on.
  
! 'os.arch'
       The hardware that we are running on.
  
! 'os.version'
       The version number of the operating system/kernel.
  
! 'awt.appletWarning'
       The string to display when an untrusted applet is displayed.
!      Returned by 'java.awt.Window.getWarningString()' when the window is
       "insecure".
  
! 'awt.toolkit'
       The class name used for initializing the default
!      'java.awt.Toolkit'.  Defaults to 'gnu.awt.gtk.GtkToolkit'.
  
! 'http.proxyHost'
       Name of proxy host for http connections.
  
! 'http.proxyPort'
       Port number to use when a proxy host is in use.
  
  
  File: gcj.info,  Node: GNU Classpath Properties,  Next: libgcj Runtime Properties,  Prev: Standard Properties,  Up: System properties
  
  12.2 GNU Classpath Properties
  =============================
  
! 'libgcj' is based on the GNU Classpath (Essential Libraries for Java) a
  GNU project to create free core class libraries for use with virtual
  machines and compilers for the Java language.  The following properties
  are common to libraries based on GNU Classpath.
  
! 'gcj.dumpobject'
       Enables printing serialization debugging by the
!      'java.io.ObjectInput' and 'java.io.ObjectOutput' classes when set
       to something else then the empty string.  Only used when running a
       debug build of the library.
  
! 'gnu.classpath.vm.shortname'
!      This is a succinct name of the virtual machine.  For 'libgcj', this
!      will always be 'libgcj'.
  
! 'gnu.classpath.home.url'
       A base URL used for finding system property files (e.g.,
!      'classpath.security').  By default this is a 'file:' URL pointing
!      to the 'lib' directory under 'java.home'.
  
  
  File: gcj.info,  Node: libgcj Runtime Properties,  Prev: GNU Classpath Properties,  Up: System properties
*************** File: gcj.info,  Node: libgcj Runtime Pr
*** 3489,3585 ****
  12.3 libgcj Runtime Properties
  ==============================
  
! The following properties are specific to the `libgcj' runtime and will
  normally not be found in other core libraries for the java language.
  
! `java.fullversion'
!      The combination of `java.vm.name' and `java.vm.version'.
  
! `java.vm.info'
!      Same as `java.fullversion'.
  
! `impl.prefix'
!      Used by the `java.net.DatagramSocket' class when set to something
       else then the empty string.  When set all newly created
!      `DatagramSocket's will try to load a class
!      `java.net.[impl.prefix]DatagramSocketImpl' instead of the normal
!      `java.net.PlainDatagramSocketImpl'.
  
! `gnu.gcj.progname'
!      The class or binary name that was used to invoke the program. This
!      will be the name of the "main" class in the case where the `gij'
       front end is used, or the program binary name in the case where an
       application is compiled to a native binary.
  
! `gnu.gcj.user.realname'
       The real name of the user, as taken from the password file.  This
       may not always hold only the user's name (as some sites put extra
       information in this field).  Also, this property is not available
       on all platforms.
  
! `gnu.gcj.runtime.NameFinder.use_addr2line'
!      Whether an external process, `addr2line', should be used to
!      determine line number information when tracing the stack. Setting
!      this to `false' may suppress line numbers when printing stack
       traces and when using the java.util.logging infrastructure.
       However, performance may improve significantly for applications
       that print stack traces or make logging calls frequently.
  
! `gnu.gcj.runtime.NameFinder.show_raw'
       Whether the address of a stack frame should be printed when the
!      line number is unavailable. Setting this to `true' will cause the
       name of the object and the offset within that object to be printed
       when no line number is available.  This allows for off-line
       decoding of stack traces if necessary debug information is
!      available.  The default is `false', no raw addresses are printed.
  
! `gnu.gcj.runtime.NameFinder.remove_unknown'
       Whether stack frames for non-java code should be included in a
!      stack trace.  The default value is `true', stack frames for
!      non-java code are suppressed.  Setting this to `false' will cause
       any non-java stack frames to be printed in addition to frames for
       the java code.
  
! `gnu.gcj.runtime.VMClassLoader.library_control'
       This controls how shared libraries are automatically loaded by the
!      built-in class loader.  If this property is set to `full', a full
       search is done for each requested class.  If this property is set
!      to `cache', then any failed lookups are cached and not tried again.
!      If this property is set to `never' (the default), then lookups are
       never done.  For more information, *Note Extensions::.
  
! `gnu.gcj.runtime.endorsed.dirs'
!      This is like the standard `java.endorsed.dirs', property, but
       specifies some extra directories which are searched after the
       standard endorsed directories.  This is primarily useful for
!      telling `libgcj' about additional libraries which are ordinarily
       incorporated into the JDK, and which should be loaded by the
!      bootstrap class loader, but which are not yet part of `libgcj'
       itself for some reason.
  
! `gnu.gcj.jit.compiler'
!      This is the full path to `gcj' executable which should be used to
!      compile classes just-in-time when `ClassLoader.defineClass' is
!      called.  If not set, `gcj' will not be invoked by the runtime;
!      this can also be controlled via `Compiler.disable'.
  
! `gnu.gcj.jit.options'
       This is a space-separated string of options which should be passed
!      to `gcj' when in JIT mode.  If not set, a sensible default is
       chosen.
  
! `gnu.gcj.jit.cachedir'
!      This is the directory where cached shared library files are
!      stored.  If not set, JIT compilation is disabled.  This should
!      never be set to a directory that is writable by any other user.
  
! `gnu.gcj.precompiled.db.path'
       This is a sequence of file names, each referring to a file created
!      by `gcj-dbtool'.  These files will be used by `libgcj' to find
       shared libraries corresponding to classes that are loaded from
!      bytecode.  `libgcj' often has a built-in default database; it can
!      be queried using `gcj-dbtool -p'.
! 
  
  
  File: gcj.info,  Node: Resources,  Next: Index,  Prev: System properties,  Up: Top
--- 3452,3547 ----
  12.3 libgcj Runtime Properties
  ==============================
  
! The following properties are specific to the 'libgcj' runtime and will
  normally not be found in other core libraries for the java language.
  
! 'java.fullversion'
!      The combination of 'java.vm.name' and 'java.vm.version'.
  
! 'java.vm.info'
!      Same as 'java.fullversion'.
  
! 'impl.prefix'
!      Used by the 'java.net.DatagramSocket' class when set to something
       else then the empty string.  When set all newly created
!      'DatagramSocket's will try to load a class
!      'java.net.[impl.prefix]DatagramSocketImpl' instead of the normal
!      'java.net.PlainDatagramSocketImpl'.
  
! 'gnu.gcj.progname'
!      The class or binary name that was used to invoke the program.  This
!      will be the name of the "main" class in the case where the 'gij'
       front end is used, or the program binary name in the case where an
       application is compiled to a native binary.
  
! 'gnu.gcj.user.realname'
       The real name of the user, as taken from the password file.  This
       may not always hold only the user's name (as some sites put extra
       information in this field).  Also, this property is not available
       on all platforms.
  
! 'gnu.gcj.runtime.NameFinder.use_addr2line'
!      Whether an external process, 'addr2line', should be used to
!      determine line number information when tracing the stack.  Setting
!      this to 'false' may suppress line numbers when printing stack
       traces and when using the java.util.logging infrastructure.
       However, performance may improve significantly for applications
       that print stack traces or make logging calls frequently.
  
! 'gnu.gcj.runtime.NameFinder.show_raw'
       Whether the address of a stack frame should be printed when the
!      line number is unavailable.  Setting this to 'true' will cause the
       name of the object and the offset within that object to be printed
       when no line number is available.  This allows for off-line
       decoding of stack traces if necessary debug information is
!      available.  The default is 'false', no raw addresses are printed.
  
! 'gnu.gcj.runtime.NameFinder.remove_unknown'
       Whether stack frames for non-java code should be included in a
!      stack trace.  The default value is 'true', stack frames for
!      non-java code are suppressed.  Setting this to 'false' will cause
       any non-java stack frames to be printed in addition to frames for
       the java code.
  
! 'gnu.gcj.runtime.VMClassLoader.library_control'
       This controls how shared libraries are automatically loaded by the
!      built-in class loader.  If this property is set to 'full', a full
       search is done for each requested class.  If this property is set
!      to 'cache', then any failed lookups are cached and not tried again.
!      If this property is set to 'never' (the default), then lookups are
       never done.  For more information, *Note Extensions::.
  
! 'gnu.gcj.runtime.endorsed.dirs'
!      This is like the standard 'java.endorsed.dirs', property, but
       specifies some extra directories which are searched after the
       standard endorsed directories.  This is primarily useful for
!      telling 'libgcj' about additional libraries which are ordinarily
       incorporated into the JDK, and which should be loaded by the
!      bootstrap class loader, but which are not yet part of 'libgcj'
       itself for some reason.
  
! 'gnu.gcj.jit.compiler'
!      This is the full path to 'gcj' executable which should be used to
!      compile classes just-in-time when 'ClassLoader.defineClass' is
!      called.  If not set, 'gcj' will not be invoked by the runtime; this
!      can also be controlled via 'Compiler.disable'.
  
! 'gnu.gcj.jit.options'
       This is a space-separated string of options which should be passed
!      to 'gcj' when in JIT mode.  If not set, a sensible default is
       chosen.
  
! 'gnu.gcj.jit.cachedir'
!      This is the directory where cached shared library files are stored.
!      If not set, JIT compilation is disabled.  This should never be set
!      to a directory that is writable by any other user.
  
! 'gnu.gcj.precompiled.db.path'
       This is a sequence of file names, each referring to a file created
!      by 'gcj-dbtool'.  These files will be used by 'libgcj' to find
       shared libraries corresponding to classes that are loaded from
!      bytecode.  'libgcj' often has a built-in default database; it can
!      be queried using 'gcj-dbtool -p'.
  
  
  File: gcj.info,  Node: Resources,  Next: Index,  Prev: System properties,  Up: Top
*************** File: gcj.info,  Node: Resources,  Next:
*** 3587,3606 ****
  13 Resources
  ************
  
! While writing `gcj' and `libgcj' we have, of course, relied heavily on
  documentation from Sun Microsystems.  In particular we have used The
  Java Language Specification (both first and second editions), the Java
  Class Libraries (volumes one and two), and the Java Virtual Machine
  Specification.  In addition we've used Sun's online documentation.
  
!    The current `gcj' home page is `http://gcc.gnu.org/java/'.
  
!    For more information on GCC, see `http://gcc.gnu.org/'.
  
!    Some `libgcj' testing is done using the Mauve test suite.  This is a
  free software Java class library test suite which is being written
! because the JCK is not free.  See `http://www.sourceware.org/mauve/'
! for more information.
  
  
  File: gcj.info,  Node: Index,  Prev: Resources,  Up: Top
--- 3549,3568 ----
  13 Resources
  ************
  
! While writing 'gcj' and 'libgcj' we have, of course, relied heavily on
  documentation from Sun Microsystems.  In particular we have used The
  Java Language Specification (both first and second editions), the Java
  Class Libraries (volumes one and two), and the Java Virtual Machine
  Specification.  In addition we've used Sun's online documentation.
  
!    The current 'gcj' home page is <http://gcc.gnu.org/java/>.
  
!    For more information on GCC, see <http://gcc.gnu.org/>.
  
!    Some 'libgcj' testing is done using the Mauve test suite.  This is a
  free software Java class library test suite which is being written
! because the JCK is not free.  See <http://www.sourceware.org/mauve/> for
! more information.
  
  
  File: gcj.info,  Node: Index,  Prev: Resources,  Up: Top
*************** Index
*** 3613,3691 ****
  
  * class path:                            Input Options.        (line  6)
  * class$:                                Reference types.      (line 20)
! * elements on template<class T>:         Arrays.               (line 46)
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                                 (line  6)
  * GCJ_PROPERTIES:                        Extensions.           (line 56)
  * jclass:                                Reference types.      (line 16)
  * jobject:                               Reference types.      (line 16)
  * jstring:                               Reference types.      (line 16)
! * JvAllocBytes:                          Mixing with C++.      (line 99)
! * JvAttachCurrentThread:                 Invocation.           (line 55)
! * JvCreateJavaVM:                        Invocation.           (line 11)
  * JvDetachCurrentThread:                 Invocation.           (line 68)
! * JvFree:                                Memory allocation.    (line 19)
! * JvGetArrayLength:                      Arrays.               (line 86)
! * JvGetStringChars:                      Strings.              (line 25)
! * JvGetStringUTFLength:                  Strings.              (line 29)
! * JvGetStringUTFRegion:                  Strings.              (line 34)
! * JvMalloc:                              Memory allocation.    (line 11)
! * JvNewBooleanArray:                     Arrays.               (line 83)
! * JvNewObjectArray:                      Arrays.               (line 57)
! * JvNewString:                           Strings.              (line 11)
! * JvNewStringLatin1:                     Strings.              (line 15)
! * JvNewStringUTF:                        Strings.              (line 21)
! * JvPrimClass:                           Primitive types.      (line 36)
! * JvRealloc:                             Memory allocation.    (line 15)
  
  
  
  Tag Table:
! Node: Top2729
! Node: Copying4148
! Node: GNU Free Documentation License41698
! Node: Invoking gcj66841
! Node: Input and output files67604
! Node: Input Options69130
! Node: Encodings72404
! Node: Warnings73610
! Node: Linking74723
! Node: Code Generation77662
! Node: Configure-time Options84442
! Node: Compatibility86182
! Node: Limitations86666
! Node: Extensions88248
! Node: Invoking jcf-dump91342
! Node: Invoking gij92287
! Node: Invoking gcj-dbtool95538
! Node: Invoking jv-convert98004
! Node: Invoking grmic99083
! Node: Invoking gc-analyze100469
! Node: Invoking aot-compile101910
! Node: Invoking rebuild-gcj-db102859
! Node: About CNI103169
! Node: Basic concepts104628
! Node: Packages107524
! Node: Primitive types109852
! Node: Reference types111530
! Node: Interfaces112619
! Node: Objects and Classes113530
! Node: Class Initialization115725
! Node: Object allocation118067
! Node: Memory allocation118857
! Node: Arrays119489
! Node: Methods122299
! Node: Strings125120
! Node: Mixing with C++126624
! Node: Exception Handling130095
! Node: Synchronization131729
! Node: Invocation133719
! Node: Reflection138655
! Node: System properties139116
! Node: Standard Properties139993
! Node: GNU Classpath Properties144425
! Node: libgcj Runtime Properties145472
! Node: Resources149974
! Node: Index150788
  
  End Tag Table
--- 3575,3655 ----
  
  * class path:                            Input Options.        (line  6)
  * class$:                                Reference types.      (line 20)
! * elements on template<class T>:         Arrays.               (line 45)
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                                 (line  6)
  * GCJ_PROPERTIES:                        Extensions.           (line 56)
+ * GCJ_PROPERTIES <1>:                    Extensions.           (line 56)
  * jclass:                                Reference types.      (line 16)
  * jobject:                               Reference types.      (line 16)
  * jstring:                               Reference types.      (line 16)
! * JvAllocBytes:                          Mixing with C++.      (line 98)
! * JvAttachCurrentThread:                 Invocation.           (line 54)
! * JvCreateJavaVM:                        Invocation.           (line 10)
  * JvDetachCurrentThread:                 Invocation.           (line 68)
! * JvFree:                                Memory allocation.    (line 18)
! * JvGetArrayLength:                      Arrays.               (line 85)
! * JvGetStringChars:                      Strings.              (line 24)
! * JvGetStringUTFLength:                  Strings.              (line 28)
! * JvGetStringUTFRegion:                  Strings.              (line 32)
! * JvMalloc:                              Memory allocation.    (line 10)
! * JvNewBooleanArray:                     Arrays.               (line 82)
! * JvNewObjectArray:                      Arrays.               (line 55)
! * JvNewString:                           Strings.              (line 10)
! * JvNewStringLatin1:                     Strings.              (line 14)
! * JvNewStringLatin1 <1>:                 Strings.              (line 17)
! * JvNewStringUTF:                        Strings.              (line 20)
! * JvPrimClass:                           Primitive types.      (line 35)
! * JvRealloc:                             Memory allocation.    (line 14)
  
  
  
  Tag Table:
! Node: Top2679
! Node: Copying4098
! Node: GNU Free Documentation License41630
! Node: Invoking gcj66754
! Node: Input and output files67517
! Node: Input Options69039
! Node: Encodings72314
! Node: Warnings73520
! Node: Linking74633
! Node: Code Generation77571
! Node: Configure-time Options84347
! Node: Compatibility86087
! Node: Limitations86571
! Node: Extensions88149
! Node: Invoking jcf-dump91240
! Node: Invoking gij92185
! Node: Invoking gcj-dbtool95441
! Node: Invoking jv-convert97902
! Node: Invoking grmic98981
! Node: Invoking gc-analyze100367
! Node: Invoking aot-compile101808
! Node: Invoking rebuild-gcj-db102756
! Node: About CNI103066
! Node: Basic concepts104525
! Node: Packages107421
! Node: Primitive types109749
! Node: Reference types111426
! Node: Interfaces112510
! Node: Objects and Classes113421
! Node: Class Initialization115616
! Node: Object allocation117959
! Node: Memory allocation118749
! Node: Arrays119381
! Node: Methods122191
! Node: Strings125012
! Node: Mixing with C++126516
! Node: Exception Handling129989
! Node: Synchronization131624
! Node: Invocation133613
! Node: Reflection138565
! Node: System properties139023
! Node: Standard Properties139900
! Node: GNU Classpath Properties144331
! Node: libgcj Runtime Properties145377
! Node: Resources149880
! Node: Index150694
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/doc/gcov-dump.1 gcc-6.5.0/gcc/doc/gcov-dump.1
*** gcc-6.4.0/gcc/doc/gcov-dump.1	Tue Jul  4 07:37:47 2017
--- gcc-6.5.0/gcc/doc/gcov-dump.1	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCOV-DUMP 1"
! .TH GCOV-DUMP 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCOV-DUMP 1"
! .TH GCOV-DUMP 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/gcov-tool.1 gcc-6.5.0/gcc/doc/gcov-tool.1
*** gcc-6.4.0/gcc/doc/gcov-tool.1	Tue Jul  4 07:37:47 2017
--- gcc-6.5.0/gcc/doc/gcov-tool.1	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCOV-TOOL 1"
! .TH GCOV-TOOL 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCOV-TOOL 1"
! .TH GCOV-TOOL 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/gcov.1 gcc-6.5.0/gcc/doc/gcov.1
*** gcc-6.4.0/gcc/doc/gcov.1	Tue Jul  4 07:37:44 2017
--- gcc-6.5.0/gcc/doc/gcov.1	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GCOV 1"
! .TH GCOV 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GCOV 1"
! .TH GCOV 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** in fine-tuning the performance of your p
*** 210,216 ****
  timing information you can use along with the information you get from
  \&\fBgcov\fR.
  .PP
! \&\fBgcov\fR works only on code compiled with \s-1GCC. \s0 It is not
  compatible with any other profiling or test coverage mechanism.
  .SH "OPTIONS"
  .IX Header "OPTIONS"
--- 206,212 ----
  timing information you can use along with the information you get from
  \&\fBgcov\fR.
  .PP
! \&\fBgcov\fR works only on code compiled with \s-1GCC.\s0  It is not
  compatible with any other profiling or test coverage mechanism.
  .SH "OPTIONS"
  .IX Header "OPTIONS"
*************** program source code.  The format is
*** 446,457 ****
  Additional block information may succeed each line, when requested by
  command line option.  The \fIexecution_count\fR is \fB\-\fR for lines
  containing no code.  Unexecuted lines are marked \fB#####\fR or
! \&\fB====\fR, depending on whether they are reachable by
  non-exceptional paths or only exceptional paths such as \*(C+ exception
  handlers, respectively. Given \fB\-a\fR option, unexecuted blocks are
  marked \fB$$$$$\fR or \fB%%%%%\fR, depending on whether a basic block
  is reachable via non-exceptional or exceptional paths.
  .PP
  Some lines of information at the start have \fIline_number\fR of zero.
  These preamble lines are of the form
  .PP
--- 442,460 ----
  Additional block information may succeed each line, when requested by
  command line option.  The \fIexecution_count\fR is \fB\-\fR for lines
  containing no code.  Unexecuted lines are marked \fB#####\fR or
! \&\fB=====\fR, depending on whether they are reachable by
  non-exceptional paths or only exceptional paths such as \*(C+ exception
  handlers, respectively. Given \fB\-a\fR option, unexecuted blocks are
  marked \fB$$$$$\fR or \fB%%%%%\fR, depending on whether a basic block
  is reachable via non-exceptional or exceptional paths.
  .PP
+ Note that \s-1GCC\s0 can completely remove the bodies of functions that are
+ not needed \*(-- for instance if they are inlined everywhere.  Such functions
+ are marked with \fB\-\fR, which can be confusing.
+ Use the \fB\-fkeep\-inline\-functions\fR and \fB\-fkeep\-static\-functions\fR
+ options to retain these functions and
+ allow gcov to properly show their \fIexecution_count\fR.
+ .PP
  Some lines of information at the start have \fIline_number\fR of zero.
  These preamble lines are of the form
  .PP
*************** facilities to restrict profile collectio
*** 725,730 ****
--- 728,735 ----
  interest. Calling \f(CW\*(C`_gcov_reset(void)\*(C'\fR will clear all profile counters
  to zero, and calling \f(CW\*(C`_gcov_dump(void)\*(C'\fR will cause the profile information
  collected at that point to be dumped to \fI.gcda\fR output files.
+ If an executable loads a dynamic shared object via dlopen functionality,
+ \&\fB\-Wl,\-\-dynamic\-list\-data\fR is needed to dump all profile data.
  .SH "SEE ALSO"
  .IX Header "SEE ALSO"
  \&\fIgpl\fR\|(7), \fIgfdl\fR\|(7), \fIfsf\-funding\fR\|(7), \fIgcc\fR\|(1) and the Info entry for \fIgcc\fR.
diff -Nrcpad gcc-6.4.0/gcc/doc/gcov.texi gcc-6.5.0/gcc/doc/gcov.texi
*** gcc-6.4.0/gcc/doc/gcov.texi	Tue Jul  4 07:15:57 2017
--- gcc-6.5.0/gcc/doc/gcov.texi	Thu Mar  8 08:55:59 2018
*************** program source code.  The format is
*** 321,332 ****
  Additional block information may succeed each line, when requested by
  command line option.  The @var{execution_count} is @samp{-} for lines
  containing no code.  Unexecuted lines are marked @samp{#####} or
! @samp{====}, depending on whether they are reachable by
  non-exceptional paths or only exceptional paths such as C++ exception
  handlers, respectively. Given @samp{-a} option, unexecuted blocks are
  marked @samp{$$$$$} or @samp{%%%%%}, depending on whether a basic block
  is reachable via non-exceptional or exceptional paths.
  
  Some lines of information at the start have @var{line_number} of zero.
  These preamble lines are of the form
  
--- 321,339 ----
  Additional block information may succeed each line, when requested by
  command line option.  The @var{execution_count} is @samp{-} for lines
  containing no code.  Unexecuted lines are marked @samp{#####} or
! @samp{=====}, depending on whether they are reachable by
  non-exceptional paths or only exceptional paths such as C++ exception
  handlers, respectively. Given @samp{-a} option, unexecuted blocks are
  marked @samp{$$$$$} or @samp{%%%%%}, depending on whether a basic block
  is reachable via non-exceptional or exceptional paths.
  
+ Note that GCC can completely remove the bodies of functions that are
+ not needed -- for instance if they are inlined everywhere.  Such functions
+ are marked with @samp{-}, which can be confusing.
+ Use the @option{-fkeep-inline-functions} and @option{-fkeep-static-functions}
+ options to retain these functions and
+ allow gcov to properly show their @var{execution_count}.
+ 
  Some lines of information at the start have @var{line_number} of zero.
  These preamble lines are of the form
  
*************** facilities to restrict profile collectio
*** 604,609 ****
--- 611,618 ----
  interest. Calling @code{_gcov_reset(void)} will clear all profile counters
  to zero, and calling @code{_gcov_dump(void)} will cause the profile information
  collected at that point to be dumped to @file{.gcda} output files.
+ If an executable loads a dynamic shared object via dlopen functionality,
+ @option{-Wl,--dynamic-list-data} is needed to dump all profile data.
  
  @c man end
  
diff -Nrcpad gcc-6.4.0/gcc/doc/gfdl.7 gcc-6.5.0/gcc/doc/gfdl.7
*** gcc-6.4.0/gcc/doc/gfdl.7	Tue Jul  4 07:37:47 2017
--- gcc-6.5.0/gcc/doc/gfdl.7	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GFDL 7"
! .TH GFDL 7 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GFDL 7"
! .TH GFDL 7 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** format, \s-1SGML\s0 or \s-1XML\s0 using
*** 243,249 ****
  \&\s-1DTD,\s0 and standard-conforming simple \s-1HTML,\s0
  PostScript or \s-1PDF\s0 designed for human modification.  Examples
  of transparent image formats include \s-1PNG, XCF\s0 and
! \&\s-1JPG. \s0 Opaque formats include proprietary formats that can be
  read and edited only by proprietary word processors, \s-1SGML\s0 or
  \&\s-1XML\s0 for which the \s-1DTD\s0 and/or processing tools are
  not generally available, and the machine-generated \s-1HTML,\s0
--- 239,245 ----
  \&\s-1DTD,\s0 and standard-conforming simple \s-1HTML,\s0
  PostScript or \s-1PDF\s0 designed for human modification.  Examples
  of transparent image formats include \s-1PNG, XCF\s0 and
! \&\s-1JPG.\s0  Opaque formats include proprietary formats that can be
  read and edited only by proprietary word processors, \s-1SGML\s0 or
  \&\s-1XML\s0 for which the \s-1DTD\s0 and/or processing tools are
  not generally available, and the machine-generated \s-1HTML,\s0
*************** in part, as part of another Document.
*** 600,606 ****
  An \s-1MMC\s0 is \*(L"eligible for relicensing\*(R" if it is licensed under this
  License, and if all works that were first published under this License
  somewhere other than this \s-1MMC,\s0 and subsequently incorporated in whole
! or in part into the \s-1MMC, \\fIs0\fR\|(1) had no cover texts or invariant sections,
  and (2) were thus incorporated prior to November 1, 2008.
  .Sp
  The operator of an \s-1MMC\s0 Site may republish an \s-1MMC\s0 contained in the site
--- 596,602 ----
  An \s-1MMC\s0 is \*(L"eligible for relicensing\*(R" if it is licensed under this
  License, and if all works that were first published under this License
  somewhere other than this \s-1MMC,\s0 and subsequently incorporated in whole
! or in part into the \s-1MMC,\s0 (1) had no cover texts or invariant sections,
  and (2) were thus incorporated prior to November 1, 2008.
  .Sp
  The operator of an \s-1MMC\s0 Site may republish an \s-1MMC\s0 contained in the site
diff -Nrcpad gcc-6.4.0/gcc/doc/gfortran.1 gcc-6.5.0/gcc/doc/gfortran.1
*** gcc-6.4.0/gcc/doc/gfortran.1	Tue Jul  4 09:27:49 2017
--- gcc-6.5.0/gcc/doc/gfortran.1	Fri Oct 26 10:07:26 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GFORTRAN 1"
! .TH GFORTRAN 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GFORTRAN 1"
! .TH GFORTRAN 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** Other flags enabled by this switch are:
*** 280,286 ****
  \&\fB\-fdollar\-ok\fR \fB\-fcray\-pointer\fR \fB\-fdec\-structure\fR
  .IP "\fB\-fdec\-structure\fR" 4
  .IX Item "-fdec-structure"
! Enable \s-1DEC \s0\f(CW\*(C`STRUCTURE\*(C'\fR and \f(CW\*(C`RECORD\*(C'\fR as well as \f(CW\*(C`UNION\*(C'\fR,
  \&\f(CW\*(C`MAP\*(C'\fR, and dot ('.') as a member separator (in addition to '%'). This is
  provided for compatibility only; Fortran 90 derived types should be used
  instead where possible.
--- 276,282 ----
  \&\fB\-fdollar\-ok\fR \fB\-fcray\-pointer\fR \fB\-fdec\-structure\fR
  .IP "\fB\-fdec\-structure\fR" 4
  .IX Item "-fdec-structure"
! Enable \s-1DEC\s0 \f(CW\*(C`STRUCTURE\*(C'\fR and \f(CW\*(C`RECORD\*(C'\fR as well as \f(CW\*(C`UNION\*(C'\fR,
  \&\f(CW\*(C`MAP\*(C'\fR, and dot ('.') as a member separator (in addition to '%'). This is
  provided for compatibility only; Fortran 90 derived types should be used
  instead where possible.
*************** compilation sentinels in free form and \
*** 352,358 ****
  OpenACC runtime library to be linked in.
  .Sp
  Note that this is an experimental feature, incomplete, and subject to
! change in future versions of \s-1GCC. \s0 See
  <\fBhttps://gcc.gnu.org/wiki/OpenACC\fR> for more information.
  .IP "\fB\-fopenmp\fR" 4
  .IX Item "-fopenmp"
--- 348,354 ----
  OpenACC runtime library to be linked in.
  .Sp
  Note that this is an experimental feature, incomplete, and subject to
! change in future versions of \s-1GCC.\s0  See
  <\fBhttps://gcc.gnu.org/wiki/OpenACC\fR> for more information.
  .IP "\fB\-fopenmp\fR" 4
  .IX Item "-fopenmp"
diff -Nrcpad gcc-6.4.0/gcc/doc/gij.1 gcc-6.5.0/gcc/doc/gij.1
*** gcc-6.4.0/gcc/doc/gij.1	Tue Jul  4 09:07:59 2017
--- gcc-6.5.0/gcc/doc/gij.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GIJ 1"
! .TH GIJ 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GIJ 1"
! .TH GIJ 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/gpl.7 gcc-6.5.0/gcc/doc/gpl.7
*** gcc-6.4.0/gcc/doc/gpl.7	Tue Jul  4 07:37:47 2017
--- gcc-6.5.0/gcc/doc/gpl.7	Fri Oct 26 09:57:35 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GPL 7"
! .TH GPL 7 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GPL 7"
! .TH GPL 7 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** later version.
*** 752,763 ****
  .IP "15. Disclaimer of Warranty." 4
  .IX Item "15. Disclaimer of Warranty."
  \&\s-1THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
! APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM \*(L"AS IS\*(R" WITHOUT
  WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
! A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND
! PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE
  DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
  CORRECTION.\s0
  .IP "16. Limitation of Liability." 4
--- 748,759 ----
  .IP "15. Disclaimer of Warranty." 4
  .IX Item "15. Disclaimer of Warranty."
  \&\s-1THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
! APPLICABLE LAW.\s0  \s-1EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
  HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM \*(L"AS IS\*(R" WITHOUT
  WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
! A PARTICULAR PURPOSE.\s0  \s-1THE ENTIRE RISK AS TO THE QUALITY AND
! PERFORMANCE OF THE PROGRAM IS WITH YOU.\s0  \s-1SHOULD THE PROGRAM PROVE
  DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
  CORRECTION.\s0
  .IP "16. Limitation of Liability." 4
*************** CORRECTION.\s0
*** 766,772 ****
  WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
  CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
! ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM \s0(\s-1INCLUDING BUT
  NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
  LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
  TO OPERATE WITH ANY OTHER PROGRAMS\s0), \s-1EVEN IF SUCH HOLDER OR OTHER
--- 762,768 ----
  WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
  CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
! ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM\s0 (\s-1INCLUDING BUT
  NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
  LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
  TO OPERATE WITH ANY OTHER PROGRAMS\s0), \s-1EVEN IF SUCH HOLDER OR OTHER
diff -Nrcpad gcc-6.4.0/gcc/doc/grmic.1 gcc-6.5.0/gcc/doc/grmic.1
*** gcc-6.4.0/gcc/doc/grmic.1	Tue Jul  4 09:08:00 2017
--- gcc-6.5.0/gcc/doc/grmic.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GRMIC 1"
! .TH GRMIC 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GRMIC 1"
! .TH GRMIC 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** grmic \- Generate stubs for Remote Metho
*** 148,155 ****
  \&\fBgrmic\fR is a utility included with \f(CW\*(C`libgcj\*(C'\fR which generates
  stubs for remote objects.
  .PP
! Note that this program isn't yet fully compatible with the \s-1JDK
! \&\s0\fBgrmic\fR.  Some options, such as \fB\-classpath\fR, are
  recognized but currently ignored.  We have left these options
  undocumented for now.
  .PP
--- 144,151 ----
  \&\fBgrmic\fR is a utility included with \f(CW\*(C`libgcj\*(C'\fR which generates
  stubs for remote objects.
  .PP
! Note that this program isn't yet fully compatible with the \s-1JDK\s0
! \&\fBgrmic\fR.  Some options, such as \fB\-classpath\fR, are
  recognized but currently ignored.  We have left these options
  undocumented for now.
  .PP
diff -Nrcpad gcc-6.4.0/gcc/doc/invoke.texi gcc-6.5.0/gcc/doc/invoke.texi
*** gcc-6.4.0/gcc/doc/invoke.texi	Tue Jul  4 07:15:57 2017
--- gcc-6.5.0/gcc/doc/invoke.texi	Mon Apr 16 19:03:00 2018
*************** Objective-C and Objective-C++ Dialects}.
*** 637,643 ****
  @emph{AVR Options}
  @gccoptlist{-mmcu=@var{mcu} -maccumulate-args -mbranch-cost=@var{cost} @gol
  -mcall-prologues -mint8 -mn_flash=@var{size} -mno-interrupts @gol
! -mrelax -mrmw -mstrict-X -mtiny-stack -nodevicelib -Waddr-space-convert}
  
  @emph{Blackfin Options}
  @gccoptlist{-mcpu=@var{cpu}@r{[}-@var{sirevision}@r{]} @gol
--- 637,644 ----
  @emph{AVR Options}
  @gccoptlist{-mmcu=@var{mcu} -maccumulate-args -mbranch-cost=@var{cost} @gol
  -mcall-prologues -mint8 -mn_flash=@var{size} -mno-interrupts @gol
! -mrelax -mrmw -mstrict-X -mtiny-stack -nodevicelib -Waddr-space-convert @gol
! -Wmisspelled-isr}
  
  @emph{Blackfin Options}
  @gccoptlist{-mcpu=@var{cpu}@r{[}-@var{sirevision}@r{]} @gol
*************** Objective-C and Objective-C++ Dialects}.
*** 741,747 ****
  
  @emph{HPPA Options}
  @gccoptlist{-march=@var{architecture-type} @gol
! -mdisable-fpregs  -mdisable-indexing @gol
  -mfast-indirect-calls  -mgas  -mgnu-ld   -mhp-ld @gol
  -mfixed-range=@var{register-range} @gol
  -mjump-in-delay -mlinker-opt -mlong-calls @gol
--- 742,748 ----
  
  @emph{HPPA Options}
  @gccoptlist{-march=@var{architecture-type} @gol
! -mcaller-copies  -mdisable-fpregs  -mdisable-indexing @gol
  -mfast-indirect-calls  -mgas  -mgnu-ld   -mhp-ld @gol
  -mfixed-range=@var{register-range} @gol
  -mjump-in-delay -mlinker-opt -mlong-calls @gol
*************** See RS/6000 and PowerPC Options.
*** 989,995 ****
  -mfloat-gprs=yes  -mfloat-gprs=no -mfloat-gprs=single -mfloat-gprs=double @gol
  -mprototype  -mno-prototype @gol
  -msim  -mmvme  -mads  -myellowknife  -memb  -msdata @gol
! -msdata=@var{opt}  -mvxworks  -G @var{num}  -pthread @gol
  -mrecip -mrecip=@var{opt} -mno-recip -mrecip-precision @gol
  -mno-recip-precision @gol
  -mveclibabi=@var{type} -mfriz -mno-friz @gol
--- 990,996 ----
  -mfloat-gprs=yes  -mfloat-gprs=no -mfloat-gprs=single -mfloat-gprs=double @gol
  -mprototype  -mno-prototype @gol
  -msim  -mmvme  -mads  -myellowknife  -memb  -msdata @gol
! -msdata=@var{opt}  -mreadonly-in-sdata  -mvxworks  -G @var{num}  -pthread @gol
  -mrecip -mrecip=@var{opt} -mno-recip -mrecip-precision @gol
  -mno-recip-precision @gol
  -mveclibabi=@var{type} -mfriz -mno-friz @gol
*************** See RS/6000 and PowerPC Options.
*** 1168,1174 ****
  -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol
  -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
  -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
! -mmitigate-rop}
  
  @emph{x86 Windows Options}
  @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
--- 1169,1176 ----
  -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol
  -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
  -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol
! -mmitigate-rop -mindirect-branch=@var{choice} @gol
! -mfunction-return=@var{choice} -mindirect-branch-register}
  
  @emph{x86 Windows Options}
  @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
*************** This flag is enabled by default at @opti
*** 7277,7283 ****
  
  @item -fisolate-erroneous-paths-attribute
  @opindex fisolate-erroneous-paths-attribute
! Detect paths that trigger erroneous or undefined behavior due a null value
  being used in a way forbidden by a @code{returns_nonnull} or @code{nonnull}
  attribute.  Isolate those paths from the main control flow and turn the
  statement with erroneous or undefined behavior into a trap.  This is not
--- 7279,7285 ----
  
  @item -fisolate-erroneous-paths-attribute
  @opindex fisolate-erroneous-paths-attribute
! Detect paths that trigger erroneous or undefined behavior due to a null value
  being used in a way forbidden by a @code{returns_nonnull} or @code{nonnull}
  attribute.  Isolate those paths from the main control flow and turn the
  statement with erroneous or undefined behavior into a trap.  This is not
*************** Some assemblers only support this flag w
*** 7821,7826 ****
--- 7823,7829 ----
  in that case, it is rounded up.
  
  If @var{n} is not specified or is zero, use a machine-dependent default.
+ The maximum allowed @var{n} option value is 65536.
  
  Enabled at levels @option{-O2}, @option{-O3}.
  
*************** are greater than this value, then their
*** 7840,7845 ****
--- 7843,7849 ----
  
  If @var{n} is not specified or is zero, use a machine-dependent default
  which is very likely to be @samp{1}, meaning no alignment.
+ The maximum allowed @var{n} option value is 65536.
  
  Enabled at levels @option{-O2}, @option{-O3}.
  
*************** operations.
*** 7853,7858 ****
--- 7857,7863 ----
  
  @option{-fno-align-loops} and @option{-falign-loops=1} are
  equivalent and mean that loops are not aligned.
+ The maximum allowed @var{n} option value is 65536.
  
  If @var{n} is not specified or is zero, use a machine-dependent default.
  
*************** need be executed.
*** 7870,7875 ****
--- 7875,7881 ----
  equivalent and mean that loops are not aligned.
  
  If @var{n} is not specified or is zero, use a machine-dependent default.
+ The maximum allowed @var{n} option value is 65536.
  
  Enabled at levels @option{-O2}, @option{-O3}.
  
*************** Link your object files with @option{-lgc
*** 9695,9703 ****
  Run the program on a representative workload to generate the arc profile
  information.  This may be repeated any number of times.  You can run
  concurrent instances of your program, and provided that the file system
! supports locking, the data files will be correctly updated.  Also
! @code{fork} calls are detected and correctly handled (double counting
! will not happen).
  
  @item
  For profile-directed optimizations, compile the source files again with
--- 9701,9709 ----
  Run the program on a representative workload to generate the arc profile
  information.  This may be repeated any number of times.  You can run
  concurrent instances of your program, and provided that the file system
! supports locking, the data files will be correctly updated.  Unless
! a strict ISO C dialect option is in effect, @code{fork} calls are
! detected and correctly handled without double counting.
  
  @item
  For profile-directed optimizations, compile the source files again with
*************** Only change the lower 8@tie{}bits of the
*** 14449,14460 ****
  
  @item -nodevicelib
  @opindex nodevicelib
! Don't link against AVR-LibC's device specific library @code{libdev.a}.
  
  @item -Waddr-space-convert
  @opindex Waddr-space-convert
  Warn about conversions between address spaces in the case where the
  resulting address space is not contained in the incoming address space.
  @end table
  
  @subsubsection @code{EIND} and Devices with More Than 128 Ki Bytes of Flash
--- 14455,14471 ----
  
  @item -nodevicelib
  @opindex nodevicelib
! Don't link against AVR-LibC's device specific library @code{lib<mcu>.a}.
  
  @item -Waddr-space-convert
  @opindex Waddr-space-convert
  Warn about conversions between address spaces in the case where the
  resulting address space is not contained in the incoming address space.
+  
+ @item -Wmisspelled-isr
+ @opindex Wmisspelled-isr
+ Warn if the ISR is misspelled, i.e. without @code{__vector} prefix.
+ Enabled by default.
  @end table
  
  @subsubsection @code{EIND} and Devices with More Than 128 Ki Bytes of Flash
*************** other way around.
*** 16286,16291 ****
--- 16297,16310 ----
  @opindex mpa-risc-2-0
  Synonyms for @option{-march=1.0}, @option{-march=1.1}, and @option{-march=2.0} respectively.
  
+ @item -mcaller-copies
+ @opindex mcaller-copies
+ The caller copies function arguments passed by hidden reference.  This
+ option should be used with care as it is not compatible with the default
+ 32-bit runtime.  However, only aggregates larger than eight bytes are
+ passed by hidden reference and the option provides better compatibility
+ with OpenMP.
+ 
  @item -mjump-in-delay
  @opindex mjump-in-delay
  This option is ignored and provided for compatibility purposes only.
*************** On embedded PowerPC systems, put all ini
*** 20728,20733 ****
--- 20747,20759 ----
  in the @code{.data} section, and all uninitialized data in the
  @code{.bss} section.
  
+ @item -mreadonly-in-sdata
+ @itemx -mreadonly-in-sdata
+ @opindex mreadonly-in-sdata
+ @opindex mno-readonly-in-sdata
+ Put read-only objects in the @code{.sdata} section as well.  This is the
+ default.
+ 
  @item -mblock-move-inline-limit=@var{num}
  @opindex mblock-move-inline-limit
  Inline all block moves (such as calls to @code{memcpy} or structure
*************** preferred alignment to @option{-mpreferr
*** 23623,23630 ****
  @itemx -mpclmul
  @opindex mpclmul
  @need 200
! @itemx -mclfushopt
! @opindex mclfushopt
  @need 200
  @itemx -mfsgsbase
  @opindex mfsgsbase
--- 23649,23656 ----
  @itemx -mpclmul
  @opindex mpclmul
  @need 200
! @itemx -mclflushopt
! @opindex mclflushopt
  @need 200
  @itemx -mfsgsbase
  @opindex mfsgsbase
*************** opcodes, to mitigate against certain for
*** 24212,24217 ****
--- 24238,24280 ----
  this option is limited in what it can do and should not be relied
  on to provide serious protection.
  
+ @item -mindirect-branch=@var{choice}
+ @opindex -mindirect-branch
+ Convert indirect call and jump with @var{choice}.  The default is
+ @samp{keep}, which keeps indirect call and jump unmodified.
+ @samp{thunk} converts indirect call and jump to call and return thunk.
+ @samp{thunk-inline} converts indirect call and jump to inlined call
+ and return thunk.  @samp{thunk-extern} converts indirect call and jump
+ to external call and return thunk provided in a separate object file.
+ You can control this behavior for a specific function by using the
+ function attribute @code{indirect_branch}.  @xref{Function Attributes}.
+ 
+ Note that @option{-mcmodel=large} is incompatible with
+ @option{-mindirect-branch=thunk} nor
+ @option{-mindirect-branch=thunk-extern} since the thunk function may
+ not be reachable in large code model.
+ 
+ @item -mfunction-return=@var{choice}
+ @opindex -mfunction-return
+ Convert function return with @var{choice}.  The default is @samp{keep},
+ which keeps function return unmodified.  @samp{thunk} converts function
+ return to call and return thunk.  @samp{thunk-inline} converts function
+ return to inlined call and return thunk.  @samp{thunk-extern} converts
+ function return to external call and return thunk provided in a separate
+ object file.  You can control this behavior for a specific function by
+ using the function attribute @code{function_return}.
+ @xref{Function Attributes}.
+ 
+ Note that @option{-mcmodel=large} is incompatible with
+ @option{-mfunction-return=thunk} nor
+ @option{-mfunction-return=thunk-extern} since the thunk function may
+ not be reachable in large code model.
+ 
+ 
+ @item -mindirect-branch-register
+ @opindex -mindirect-branch-register
+ Force indirect call and jump via register.
+ 
  @end table
  
  These @samp{-m} switches are supported in addition to the above
diff -Nrcpad gcc-6.4.0/gcc/doc/jcf-dump.1 gcc-6.5.0/gcc/doc/jcf-dump.1
*** gcc-6.4.0/gcc/doc/jcf-dump.1	Tue Jul  4 09:07:59 2017
--- gcc-6.5.0/gcc/doc/jcf-dump.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "JCF-DUMP 1"
! .TH JCF-DUMP 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "JCF-DUMP 1"
! .TH JCF-DUMP 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/jv-convert.1 gcc-6.5.0/gcc/doc/jv-convert.1
*** gcc-6.4.0/gcc/doc/jv-convert.1	Tue Jul  4 09:08:00 2017
--- gcc-6.5.0/gcc/doc/jv-convert.1	Fri Oct 26 10:01:57 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "JV-CONVERT 1"
! .TH JV-CONVERT 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "JV-CONVERT 1"
! .TH JV-CONVERT 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/doc/rebuild-gcj-db.1 gcc-6.5.0/gcc/doc/rebuild-gcj-db.1
*** gcc-6.4.0/gcc/doc/rebuild-gcj-db.1	Tue Jul  4 09:27:49 2017
--- gcc-6.5.0/gcc/doc/rebuild-gcj-db.1	Fri Oct 26 10:07:26 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "REBUILD-GCJ-DB 1"
! .TH REBUILD-GCJ-DB 1 "2017-07-04" "gcc-6.4.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "REBUILD-GCJ-DB 1"
! .TH REBUILD-GCJ-DB 1 "2018-10-26" "gcc-6.5.0" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/gcc/dse.c gcc-6.5.0/gcc/dse.c
*** gcc-6.4.0/gcc/dse.c	Wed Dec  7 22:49:10 2016
--- gcc-6.5.0/gcc/dse.c	Mon Jun 25 17:48:47 2018
*************** record_store (rtx body, bb_info_t bb_inf
*** 1342,1347 ****
--- 1342,1350 ----
    else
      width = GET_MODE_SIZE (GET_MODE (mem));
  
+   if (width == 0)
+     return 0;
+ 
    if (group_id >= 0)
      {
        /* In the restrictive case where the base is a constant or the
diff -Nrcpad gcc-6.4.0/gcc/dwarf2out.c gcc-6.5.0/gcc/dwarf2out.c
*** gcc-6.4.0/gcc/dwarf2out.c	Fri May  5 21:50:27 2017
--- gcc-6.5.0/gcc/dwarf2out.c	Mon Jun 25 17:44:31 2018
*************** rtl_for_decl_init (tree init, tree type)
*** 17229,17234 ****
--- 17229,17236 ----
  
        if (GET_MODE_CLASS (mode) == MODE_INT && GET_MODE_SIZE (mode) == 1
  	  && domain
+ 	  && TYPE_MAX_VALUE (domain)
+ 	  && TREE_CODE (TYPE_MAX_VALUE (domain)) == INTEGER_CST
  	  && integer_zerop (TYPE_MIN_VALUE (domain))
  	  && compare_tree_int (TYPE_MAX_VALUE (domain),
  			       TREE_STRING_LENGTH (init) - 1) == 0
diff -Nrcpad gcc-6.4.0/gcc/emit-rtl.c gcc-6.5.0/gcc/emit-rtl.c
*** gcc-6.4.0/gcc/emit-rtl.c	Tue Feb 16 23:12:19 2016
--- gcc-6.5.0/gcc/emit-rtl.c	Mon Jun 25 17:39:11 2018
*************** init_emit_regs (void)
*** 5829,5835 ****
        attrs = ggc_cleared_alloc<mem_attrs> ();
        attrs->align = BITS_PER_UNIT;
        attrs->addrspace = ADDR_SPACE_GENERIC;
!       if (mode != BLKmode)
  	{
  	  attrs->size_known_p = true;
  	  attrs->size = GET_MODE_SIZE (mode);
--- 5829,5835 ----
        attrs = ggc_cleared_alloc<mem_attrs> ();
        attrs->align = BITS_PER_UNIT;
        attrs->addrspace = ADDR_SPACE_GENERIC;
!       if (mode != BLKmode && mode != VOIDmode)
  	{
  	  attrs->size_known_p = true;
  	  attrs->size = GET_MODE_SIZE (mode);
diff -Nrcpad gcc-6.4.0/gcc/expmed.c gcc-6.5.0/gcc/expmed.c
*** gcc-6.4.0/gcc/expmed.c	Wed Dec  7 22:54:14 2016
--- gcc-6.5.0/gcc/expmed.c	Fri Oct 12 17:31:33 2018
*************** expand_shift_1 (enum tree_code code, mac
*** 2361,2369 ****
        && CONST_INT_P (op1)
        && INTVAL (op1) == BITS_PER_UNIT
        && GET_MODE_SIZE (scalar_mode) == 2
!       && optab_handler (bswap_optab, HImode) != CODE_FOR_nothing)
!     return expand_unop (HImode, bswap_optab, shifted, NULL_RTX,
! 				  unsignedp);
  
    if (op1 == const0_rtx)
      return shifted;
--- 2361,2368 ----
        && CONST_INT_P (op1)
        && INTVAL (op1) == BITS_PER_UNIT
        && GET_MODE_SIZE (scalar_mode) == 2
!       && optab_handler (bswap_optab, mode) != CODE_FOR_nothing)
!     return expand_unop (mode, bswap_optab, shifted, NULL_RTX, unsignedp);
  
    if (op1 == const0_rtx)
      return shifted;
*************** expand_divmod (int rem_flag, enum tree_c
*** 4346,4351 ****
--- 4345,4355 ----
  		HOST_WIDE_INT d = INTVAL (op1);
  		unsigned HOST_WIDE_INT abs_d;
  
+ 		/* Not prepared to handle division/remainder by
+ 		   0xffffffffffffffff8000000000000000 etc.  */
+ 		if (d == HOST_WIDE_INT_MIN && size > HOST_BITS_PER_WIDE_INT)
+ 		  break;
+ 
  		/* Since d might be INT_MIN, we have to cast to
  		   unsigned HOST_WIDE_INT before negating to avoid
  		   undefined signed overflow.  */
*************** expand_divmod (int rem_flag, enum tree_c
*** 4389,4397 ****
  						compute_mode)
  				 != CODE_FOR_nothing)))
  		  ;
! 		else if (EXACT_POWER_OF_2_OR_ZERO_P (abs_d)
! 			 && (size <= HOST_BITS_PER_WIDE_INT
! 			     || abs_d != (unsigned HOST_WIDE_INT) d))
  		  {
  		    if (rem_flag)
  		      {
--- 4393,4399 ----
  						compute_mode)
  				 != CODE_FOR_nothing)))
  		  ;
! 		else if (EXACT_POWER_OF_2_OR_ZERO_P (abs_d))
  		  {
  		    if (rem_flag)
  		      {
*************** emit_store_flag_force (rtx target, enum
*** 5917,5922 ****
--- 5919,5936 ----
    if (tem != 0)
      return tem;
  
+   /* If one operand is constant, make it the second one.  Only do this
+      if the other operand is not constant as well.  */
+ 
+   if (swap_commutative_operands_p (op0, op1))
+     {
+       std::swap (op0, op1);
+       code = swap_condition (code);
+     }
+ 
+   if (mode == VOIDmode)
+     mode = GET_MODE (op0);
+ 
    if (!target)
      target = gen_reg_rtx (word_mode);
  
diff -Nrcpad gcc-6.4.0/gcc/expr.c gcc-6.5.0/gcc/expr.c
*** gcc-6.4.0/gcc/expr.c	Tue May  9 12:24:53 2017
--- gcc-6.5.0/gcc/expr.c	Mon Jun 25 17:53:06 2018
*************** expand_assignment (tree to, tree from, b
*** 4954,4964 ****
        else if (GET_CODE (to_rtx) == CONCAT)
  	{
  	  unsigned short mode_bitsize = GET_MODE_BITSIZE (GET_MODE (to_rtx));
! 	  if (COMPLEX_MODE_P (TYPE_MODE (TREE_TYPE (from)))
  	      && bitpos == 0
  	      && bitsize == mode_bitsize)
  	    result = store_expr (from, to_rtx, false, nontemporal, reversep);
! 	  else if (bitsize == mode_bitsize / 2
  		   && (bitpos == 0 || bitpos == mode_bitsize / 2))
  	    result = store_expr (from, XEXP (to_rtx, bitpos != 0), false,
  				 nontemporal, reversep);
--- 4954,4968 ----
        else if (GET_CODE (to_rtx) == CONCAT)
  	{
  	  unsigned short mode_bitsize = GET_MODE_BITSIZE (GET_MODE (to_rtx));
! 	  if (TYPE_MODE (TREE_TYPE (from)) == GET_MODE (to_rtx)
! 	      && COMPLEX_MODE_P (GET_MODE (to_rtx))
  	      && bitpos == 0
  	      && bitsize == mode_bitsize)
  	    result = store_expr (from, to_rtx, false, nontemporal, reversep);
! 	  else if (COMPLEX_MODE_P (GET_MODE (to_rtx))
! 		   && (TYPE_MODE (TREE_TYPE (from))
! 		       == GET_MODE_INNER (GET_MODE (to_rtx)))
! 		   && bitsize == mode_bitsize / 2
  		   && (bitpos == 0 || bitpos == mode_bitsize / 2))
  	    result = store_expr (from, XEXP (to_rtx, bitpos != 0), false,
  				 nontemporal, reversep);
*************** expand_assignment (tree to, tree from, b
*** 4975,4988 ****
  				  nontemporal, reversep);
  	  else if (bitpos == 0 && bitsize == mode_bitsize)
  	    {
- 	      rtx from_rtx;
  	      result = expand_normal (from);
! 	      from_rtx = simplify_gen_subreg (GET_MODE (to_rtx), result,
! 					      TYPE_MODE (TREE_TYPE (from)), 0);
! 	      emit_move_insn (XEXP (to_rtx, 0),
! 			      read_complex_part (from_rtx, false));
! 	      emit_move_insn (XEXP (to_rtx, 1),
! 			      read_complex_part (from_rtx, true));
  	    }
  	  else
  	    {
--- 4979,5008 ----
  				  nontemporal, reversep);
  	  else if (bitpos == 0 && bitsize == mode_bitsize)
  	    {
  	      result = expand_normal (from);
! 	      if (GET_CODE (result) == CONCAT)
! 		{
! 		  machine_mode to_mode = GET_MODE_INNER (GET_MODE (to_rtx));
! 		  machine_mode from_mode = GET_MODE_INNER (GET_MODE (result));
! 		  rtx from_real
! 		    = simplify_gen_subreg (to_mode, XEXP (result, 0),
! 					   from_mode, 0);
! 		  rtx from_imag
! 		    = simplify_gen_subreg (to_mode, XEXP (result, 1),
! 					   from_mode, 1);
! 		  emit_move_insn (XEXP (to_rtx, 0), from_real);
! 		  emit_move_insn (XEXP (to_rtx, 1), from_imag);
! 		}
! 	      else
! 		{
! 		  rtx from_rtx
! 		    = simplify_gen_subreg (GET_MODE (to_rtx), result,
! 					   TYPE_MODE (TREE_TYPE (from)), 0);
! 		  emit_move_insn (XEXP (to_rtx, 0),
! 				  read_complex_part (from_rtx, false));
! 		  emit_move_insn (XEXP (to_rtx, 1),
! 				  read_complex_part (from_rtx, true));
! 		}
  	    }
  	  else
  	    {
*************** store_field (rtx target, HOST_WIDE_INT b
*** 6598,6605 ****
      return const0_rtx;
  
    /* If we have nothing to store, do nothing unless the expression has
!      side-effects.  */
!   if (bitsize == 0)
      return expand_expr (exp, const0_rtx, VOIDmode, EXPAND_NORMAL);
  
    if (GET_CODE (target) == CONCAT)
--- 6618,6628 ----
      return const0_rtx;
  
    /* If we have nothing to store, do nothing unless the expression has
!      side-effects.  Don't do that for zero sized addressable lhs of
!      calls.  */
!   if (bitsize == 0
!       && (!TREE_ADDRESSABLE (TREE_TYPE (exp))
! 	  || TREE_CODE (exp) != CALL_EXPR))
      return expand_expr (exp, const0_rtx, VOIDmode, EXPAND_NORMAL);
  
    if (GET_CODE (target) == CONCAT)
*************** store_field (rtx target, HOST_WIDE_INT b
*** 6693,6700 ****
        if (GET_CODE (temp) == PARALLEL)
  	{
  	  HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (exp));
! 	  machine_mode temp_mode
! 	    = smallest_mode_for_size (size * BITS_PER_UNIT, MODE_INT);
  	  rtx temp_target = gen_reg_rtx (temp_mode);
  	  emit_group_store (temp_target, temp, TREE_TYPE (exp), size);
  	  temp = temp_target;
--- 6716,6724 ----
        if (GET_CODE (temp) == PARALLEL)
  	{
  	  HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (exp));
! 	  machine_mode temp_mode = GET_MODE (temp);
! 	  if (temp_mode == BLKmode || temp_mode == VOIDmode)
! 	    temp_mode = smallest_mode_for_size (size * BITS_PER_UNIT, MODE_INT);
  	  rtx temp_target = gen_reg_rtx (temp_mode);
  	  emit_group_store (temp_target, temp, TREE_TYPE (exp), size);
  	  temp = temp_target;
*************** get_inner_reference (tree exp, HOST_WIDE
*** 6865,6871 ****
  	     size.  */
  	mode = TYPE_MODE (DECL_BIT_FIELD_TYPE (field));
        else if (!DECL_BIT_FIELD (field))
! 	mode = DECL_MODE (field);
        else if (DECL_MODE (field) == BLKmode)
  	blkmode_bitfield = true;
  
--- 6889,6904 ----
  	     size.  */
  	mode = TYPE_MODE (DECL_BIT_FIELD_TYPE (field));
        else if (!DECL_BIT_FIELD (field))
! 	{
! 	  mode = DECL_MODE (field);
! 	  /* For vector fields re-check the target flags, as DECL_MODE
! 	     could have been set with different target flags than
! 	     the current function has.  */
! 	  if (mode == BLKmode
! 	      && VECTOR_TYPE_P (TREE_TYPE (field))
! 	      && VECTOR_MODE_P (TYPE_MODE_RAW (TREE_TYPE (field))))
! 	    mode = TYPE_MODE (TREE_TYPE (field));
! 	}
        else if (DECL_MODE (field) == BLKmode)
  	blkmode_bitfield = true;
  
diff -Nrcpad gcc-6.4.0/gcc/final.c gcc-6.5.0/gcc/final.c
*** gcc-6.4.0/gcc/final.c	Fri Jan 22 16:44:10 2016
--- gcc-6.5.0/gcc/final.c	Wed Mar  7 09:49:47 2018
*************** shorten_branches (rtx_insn *first)
*** 901,907 ****
    char *varying_length;
    rtx body;
    int uid;
!   rtx align_tab[MAX_CODE_ALIGN];
  
    /* Compute maximum UID and allocate label_align / uid_shuid.  */
    max_uid = get_max_uid ();
--- 901,907 ----
    char *varying_length;
    rtx body;
    int uid;
!   rtx align_tab[MAX_CODE_ALIGN + 1];
  
    /* Compute maximum UID and allocate label_align / uid_shuid.  */
    max_uid = get_max_uid ();
*************** shorten_branches (rtx_insn *first)
*** 1010,1016 ****
       alignment of n.  */
    uid_align = XCNEWVEC (rtx, max_uid);
  
!   for (i = MAX_CODE_ALIGN; --i >= 0;)
      align_tab[i] = NULL_RTX;
    seq = get_last_insn ();
    for (; seq; seq = PREV_INSN (seq))
--- 1010,1016 ----
       alignment of n.  */
    uid_align = XCNEWVEC (rtx, max_uid);
  
!   for (i = MAX_CODE_ALIGN + 1; --i >= 0;)
      align_tab[i] = NULL_RTX;
    seq = get_last_insn ();
    for (; seq; seq = PREV_INSN (seq))
diff -Nrcpad gcc-6.4.0/gcc/fold-const.c gcc-6.5.0/gcc/fold-const.c
*** gcc-6.4.0/gcc/fold-const.c	Thu Jun 22 07:30:03 2017
--- gcc-6.5.0/gcc/fold-const.c	Wed Oct 17 17:54:26 2018
*************** negate_expr_p (tree t)
*** 481,492 ****
      case EXACT_DIV_EXPR:
        if (TYPE_UNSIGNED (type))
  	break;
!       if (negate_expr_p (TREE_OPERAND (t, 0)))
  	return true;
        /* In general we can't negate B in A / B, because if A is INT_MIN and
  	 B is 1, we may turn this into INT_MIN / -1 which is undefined
  	 and actually traps on some architectures.  */
!       if (! INTEGRAL_TYPE_P (TREE_TYPE (t))
  	  || TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))
  	  || (TREE_CODE (TREE_OPERAND (t, 1)) == INTEGER_CST
  	      && ! integer_onep (TREE_OPERAND (t, 1))))
--- 481,495 ----
      case EXACT_DIV_EXPR:
        if (TYPE_UNSIGNED (type))
  	break;
!       /* In general we can't negate A in A / B, because if A is INT_MIN and
!          B is not 1 we change the sign of the result.  */
!       if (TREE_CODE (TREE_OPERAND (t, 0)) == INTEGER_CST
! 	  && negate_expr_p (TREE_OPERAND (t, 0)))
  	return true;
        /* In general we can't negate B in A / B, because if A is INT_MIN and
  	 B is 1, we may turn this into INT_MIN / -1 which is undefined
  	 and actually traps on some architectures.  */
!       if (! ANY_INTEGRAL_TYPE_P (TREE_TYPE (t))
  	  || TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))
  	  || (TREE_CODE (TREE_OPERAND (t, 1)) == INTEGER_CST
  	      && ! integer_onep (TREE_OPERAND (t, 1))))
*************** fold_negate_expr_1 (location_t loc, tree
*** 663,676 ****
      case EXACT_DIV_EXPR:
        if (TYPE_UNSIGNED (type))
  	break;
!       if (negate_expr_p (TREE_OPERAND (t, 0)))
  	return fold_build2_loc (loc, TREE_CODE (t), type,
  				negate_expr (TREE_OPERAND (t, 0)),
  				TREE_OPERAND (t, 1));
        /* In general we can't negate B in A / B, because if A is INT_MIN and
  	 B is 1, we may turn this into INT_MIN / -1 which is undefined
  	 and actually traps on some architectures.  */
!       if ((! INTEGRAL_TYPE_P (TREE_TYPE (t))
  	   || TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))
  	   || (TREE_CODE (TREE_OPERAND (t, 1)) == INTEGER_CST
  	       && ! integer_onep (TREE_OPERAND (t, 1))))
--- 666,682 ----
      case EXACT_DIV_EXPR:
        if (TYPE_UNSIGNED (type))
  	break;
!       /* In general we can't negate A in A / B, because if A is INT_MIN and
! 	 B is not 1 we change the sign of the result.  */
!       if (TREE_CODE (TREE_OPERAND (t, 0)) == INTEGER_CST
! 	  && negate_expr_p (TREE_OPERAND (t, 0)))
  	return fold_build2_loc (loc, TREE_CODE (t), type,
  				negate_expr (TREE_OPERAND (t, 0)),
  				TREE_OPERAND (t, 1));
        /* In general we can't negate B in A / B, because if A is INT_MIN and
  	 B is 1, we may turn this into INT_MIN / -1 which is undefined
  	 and actually traps on some architectures.  */
!       if ((! ANY_INTEGRAL_TYPE_P (TREE_TYPE (t))
  	   || TYPE_OVERFLOW_WRAPS (TREE_TYPE (t))
  	   || (TREE_CODE (TREE_OPERAND (t, 1)) == INTEGER_CST
  	       && ! integer_onep (TREE_OPERAND (t, 1))))
*************** optimize_bit_field_compare (location_t l
*** 3972,3992 ****
  		      size_int (nbitsize - lbitsize - lbitpos));
  
    if (! const_p)
!     /* If not comparing with constant, just rework the comparison
!        and return.  */
!     return fold_build2_loc (loc, code, compare_type,
! 			fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type,
! 				     make_bit_field_ref (loc, linner, lhs,
! 							 unsigned_type,
! 							 nbitsize, nbitpos,
! 							 1, lreversep),
! 				     mask),
! 			fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type,
! 				     make_bit_field_ref (loc, rinner, rhs,
! 							 unsigned_type,
! 							 nbitsize, nbitpos,
! 							 1, rreversep),
! 				     mask));
  
    /* Otherwise, we are handling the constant case.  See if the constant is too
       big for the field.  Warn and return a tree for 0 (false) if so.  We do
--- 3978,3997 ----
  		      size_int (nbitsize - lbitsize - lbitpos));
  
    if (! const_p)
!     {
!       if (nbitpos < 0)
! 	return 0;
! 
!       /* If not comparing with constant, just rework the comparison
! 	 and return.  */
!       tree t1 = make_bit_field_ref (loc, linner, lhs, unsigned_type,
! 				    nbitsize, nbitpos, 1, lreversep);
!       t1 = fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type, t1, mask);
!       tree t2 = make_bit_field_ref (loc, rinner, rhs, unsigned_type,
! 				    nbitsize, nbitpos, 1, rreversep);
!       t2 = fold_build2_loc (loc, BIT_AND_EXPR, unsigned_type, t2, mask);
!       return fold_build2_loc (loc, code, compare_type, t1, t2);
!     }
  
    /* Otherwise, we are handling the constant case.  See if the constant is too
       big for the field.  Warn and return a tree for 0 (false) if so.  We do
*************** optimize_bit_field_compare (location_t l
*** 4017,4022 ****
--- 4022,4030 ----
  	}
      }
  
+   if (nbitpos < 0)
+     return 0;
+ 
    /* Single-bit compares should always be against zero.  */
    if (lbitsize == 1 && ! integer_zerop (rhs))
      {
*************** fold_truth_andor_1 (location_t loc, enum
*** 5847,5858 ****
      }
  
    /* If the right sides are not constant, do the same for it.  Also,
!      disallow this optimization if a size or signedness mismatch occurs
!      between the left and right sides.  */
    if (l_const == 0)
      {
        if (ll_bitsize != lr_bitsize || rl_bitsize != rr_bitsize
  	  || ll_unsignedp != lr_unsignedp || rl_unsignedp != rr_unsignedp
  	  /* Make sure the two fields on the right
  	     correspond to the left without being swapped.  */
  	  || ll_bitpos - rl_bitpos != lr_bitpos - rr_bitpos)
--- 5855,5867 ----
      }
  
    /* If the right sides are not constant, do the same for it.  Also,
!      disallow this optimization if a size, signedness or storage order
!      mismatch occurs between the left and right sides.  */
    if (l_const == 0)
      {
        if (ll_bitsize != lr_bitsize || rl_bitsize != rr_bitsize
  	  || ll_unsignedp != lr_unsignedp || rl_unsignedp != rr_unsignedp
+ 	  || ll_reversep != lr_reversep
  	  /* Make sure the two fields on the right
  	     correspond to the left without being swapped.  */
  	  || ll_bitpos - rl_bitpos != lr_bitpos - rr_bitpos)
*************** fold_truth_andor_1 (location_t loc, enum
*** 5891,5897 ****
  	 results.  */
        ll_mask = const_binop (BIT_IOR_EXPR, ll_mask, rl_mask);
        lr_mask = const_binop (BIT_IOR_EXPR, lr_mask, rr_mask);
!       if (lnbitsize == rnbitsize && xll_bitpos == xlr_bitpos)
  	{
  	  lhs = make_bit_field_ref (loc, ll_inner, ll_arg,
  				    lntype, lnbitsize, lnbitpos,
--- 5900,5909 ----
  	 results.  */
        ll_mask = const_binop (BIT_IOR_EXPR, ll_mask, rl_mask);
        lr_mask = const_binop (BIT_IOR_EXPR, lr_mask, rr_mask);
!       if (lnbitsize == rnbitsize
! 	  && xll_bitpos == xlr_bitpos
! 	  && lnbitpos >= 0
! 	  && rnbitpos >= 0)
  	{
  	  lhs = make_bit_field_ref (loc, ll_inner, ll_arg,
  				    lntype, lnbitsize, lnbitpos,
*************** fold_truth_andor_1 (location_t loc, enum
*** 5915,5924 ****
  	 Note that we still must mask the lhs/rhs expressions.  Furthermore,
  	 the mask must be shifted to account for the shift done by
  	 make_bit_field_ref.  */
!       if ((ll_bitsize + ll_bitpos == rl_bitpos
! 	   && lr_bitsize + lr_bitpos == rr_bitpos)
! 	  || (ll_bitpos == rl_bitpos + rl_bitsize
! 	      && lr_bitpos == rr_bitpos + rr_bitsize))
  	{
  	  tree type;
  
--- 5927,5940 ----
  	 Note that we still must mask the lhs/rhs expressions.  Furthermore,
  	 the mask must be shifted to account for the shift done by
  	 make_bit_field_ref.  */
!       if (((ll_bitsize + ll_bitpos == rl_bitpos
! 	    && lr_bitsize + lr_bitpos == rr_bitpos)
! 	   || (ll_bitpos == rl_bitpos + rl_bitsize
! 	       && lr_bitpos == rr_bitpos + rr_bitsize))
! 	  && ll_bitpos >= 0
! 	  && rl_bitpos >= 0
! 	  && lr_bitpos >= 0
! 	  && rr_bitpos >= 0)
  	{
  	  tree type;
  
*************** fold_truth_andor_1 (location_t loc, enum
*** 5987,5992 ****
--- 6003,6011 ----
  	}
      }
  
+   if (lnbitpos < 0)
+     return 0;
+ 
    /* Construct the expression we will return.  First get the component
       reference we will make.  Unless the mask is all ones the width of
       that field, perform the mask operation.  Then compare with the
*************** native_encode_vector (const_tree expr, u
*** 7340,7346 ****
  	return 0;
        offset += res;
        if (offset >= len)
! 	return offset;
        if (off != -1)
  	off = 0;
      }
--- 7359,7365 ----
  	return 0;
        offset += res;
        if (offset >= len)
! 	return (off == -1 && i < count - 1) ? 0 : offset;
        if (off != -1)
  	off = 0;
      }
*************** native_encode_vector (const_tree expr, u
*** 7356,7370 ****
  static int
  native_encode_string (const_tree expr, unsigned char *ptr, int len, int off)
  {
!   tree type = TREE_TYPE (expr);
!   HOST_WIDE_INT total_bytes;
! 
!   if (TREE_CODE (type) != ARRAY_TYPE
!       || TREE_CODE (TREE_TYPE (type)) != INTEGER_TYPE
!       || GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (type))) != BITS_PER_UNIT
!       || !tree_fits_shwi_p (TYPE_SIZE_UNIT (type)))
      return 0;
!   total_bytes = tree_to_shwi (TYPE_SIZE_UNIT (type));
    if ((off == -1 && total_bytes > len)
        || off >= total_bytes)
      return 0;
--- 7375,7384 ----
  static int
  native_encode_string (const_tree expr, unsigned char *ptr, int len, int off)
  {
!   if (! can_native_encode_string_p (expr))
      return 0;
! 
!   HOST_WIDE_INT total_bytes = tree_to_shwi (TYPE_SIZE_UNIT (TREE_TYPE (expr)));
    if ((off == -1 && total_bytes > len)
        || off >= total_bytes)
      return 0;
*************** can_native_interpret_type_p (tree type)
*** 7638,7643 ****
--- 7652,7673 ----
      }
  }
  
+ /* Return true iff a STRING_CST S is accepted by
+    native_encode_expr.  */
+ 
+ bool
+ can_native_encode_string_p (const_tree expr)
+ {
+   tree type = TREE_TYPE (expr);
+ 
+   if (TREE_CODE (type) != ARRAY_TYPE
+       || TREE_CODE (TREE_TYPE (type)) != INTEGER_TYPE
+       || (GET_MODE_BITSIZE (TYPE_MODE (TREE_TYPE (type))) != BITS_PER_UNIT)
+       || !tree_fits_shwi_p (TYPE_SIZE_UNIT (type)))
+     return false;
+   return true;
+ }
+ 
  /* Fold a VIEW_CONVERT_EXPR of a constant expression EXPR to type
     TYPE at compile-time.  If we're unable to perform the conversion
     return NULL_TREE.  */
*************** fold_binary_loc (location_t loc,
*** 11500,11521 ****
      } /* switch (code) */
  }
  
  /* Callback for walk_tree, looking for LABEL_EXPR.  Return *TP if it is
!    a LABEL_EXPR; otherwise return NULL_TREE.  Do not check the subtrees
!    of GOTO_EXPR.  */
  
  static tree
! contains_label_1 (tree *tp, int *walk_subtrees, void *data ATTRIBUTE_UNUSED)
  {
    switch (TREE_CODE (*tp))
      {
      case LABEL_EXPR:
        return *tp;
  
      case GOTO_EXPR:
        *walk_subtrees = 0;
! 
!       /* ... fall through ...  */
  
      default:
        return NULL_TREE;
--- 11530,11577 ----
      } /* switch (code) */
  }
  
+ /* Used by contains_label_[p1].  */
+ 
+ struct contains_label_data
+ {
+   hash_set<tree> *pset;
+   bool inside_switch_p;
+ };
+ 
  /* Callback for walk_tree, looking for LABEL_EXPR.  Return *TP if it is
!    a LABEL_EXPR or CASE_LABEL_EXPR not inside of another SWITCH_EXPR; otherwise
!    return NULL_TREE.  Do not check the subtrees of GOTO_EXPR.  */
  
  static tree
! contains_label_1 (tree *tp, int *walk_subtrees, void *data)
  {
+   contains_label_data *d = (contains_label_data *) data;
    switch (TREE_CODE (*tp))
      {
      case LABEL_EXPR:
        return *tp;
  
+     case CASE_LABEL_EXPR:
+       if (!d->inside_switch_p)
+ 	return *tp;
+       return NULL_TREE;
+ 
+     case SWITCH_EXPR:
+       if (!d->inside_switch_p)
+ 	{
+ 	  if (walk_tree (&SWITCH_COND (*tp), contains_label_1, data, d->pset))
+ 	    return *tp;
+ 	  d->inside_switch_p = true;
+ 	  if (walk_tree (&SWITCH_BODY (*tp), contains_label_1, data, d->pset))
+ 	    return *tp;
+ 	  d->inside_switch_p = false;
+ 	  *walk_subtrees = 0;
+ 	}
+       return NULL_TREE;
+ 
      case GOTO_EXPR:
        *walk_subtrees = 0;
!       return NULL_TREE;
  
      default:
        return NULL_TREE;
*************** contains_label_1 (tree *tp, int *walk_su
*** 11528,11535 ****
  static bool
  contains_label_p (tree st)
  {
!   return
!    (walk_tree_without_duplicates (&st, contains_label_1 , NULL) != NULL_TREE);
  }
  
  /* Fold a ternary expression of code CODE and type TYPE with operands
--- 11584,11592 ----
  static bool
  contains_label_p (tree st)
  {
!   hash_set<tree> pset;
!   contains_label_data data = { &pset, false };
!   return walk_tree (&st, contains_label_1, &data, &pset) != NULL_TREE;
  }
  
  /* Fold a ternary expression of code CODE and type TYPE with operands
*************** fold_ternary_loc (location_t loc, enum t
*** 11810,11819 ****
  	  && integer_pow2p (arg1)
  	  && TREE_CODE (TREE_OPERAND (arg0, 0)) == BIT_AND_EXPR
  	  && operand_equal_p (TREE_OPERAND (TREE_OPERAND (arg0, 0), 1),
! 			      arg1, OEP_ONLY_CONST))
  	return pedantic_non_lvalue_loc (loc,
! 				    fold_convert_loc (loc, type,
! 						      TREE_OPERAND (arg0, 0)));
  
        /* Disable the transformations below for vectors, since
  	 fold_binary_op_with_conditional_arg may undo them immediately,
--- 11867,11882 ----
  	  && integer_pow2p (arg1)
  	  && TREE_CODE (TREE_OPERAND (arg0, 0)) == BIT_AND_EXPR
  	  && operand_equal_p (TREE_OPERAND (TREE_OPERAND (arg0, 0), 1),
! 			      arg1, OEP_ONLY_CONST)
! 	  /* operand_equal_p compares just value, not precision, so e.g.
! 	     arg1 could be 8-bit -128 and be power of two, but BIT_AND_EXPR
! 	     second operand 32-bit -128, which is not a power of two (or vice
! 	     versa.  */
! 	  && integer_pow2p (TREE_OPERAND (TREE_OPERAND (arg0, 0), 1)))
  	return pedantic_non_lvalue_loc (loc,
! 					fold_convert_loc (loc, type,
! 							  TREE_OPERAND (arg0,
! 									0)));
  
        /* Disable the transformations below for vectors, since
  	 fold_binary_op_with_conditional_arg may undo them immediately,
*************** fold_negate_const (tree arg0, tree type)
*** 13980,13987 ****
  	bool overflow;
  	wide_int val = wi::neg (arg0, &overflow);
  	t = force_fit_type (type, val, 1,
! 			    (overflow | TREE_OVERFLOW (arg0))
! 			    && !TYPE_UNSIGNED (type));
  	break;
        }
  
--- 14043,14050 ----
  	bool overflow;
  	wide_int val = wi::neg (arg0, &overflow);
  	t = force_fit_type (type, val, 1,
! 			    (overflow && ! TYPE_UNSIGNED (type))
! 			    || TREE_OVERFLOW (arg0));
  	break;
        }
  
diff -Nrcpad gcc-6.4.0/gcc/fold-const.h gcc-6.5.0/gcc/fold-const.h
*** gcc-6.4.0/gcc/fold-const.h	Sat Jan  9 07:37:04 2016
--- gcc-6.5.0/gcc/fold-const.h	Mon Sep 18 11:07:50 2017
*************** extern int folding_initializer;
*** 27,32 ****
--- 27,33 ----
  /* Convert between trees and native memory representation.  */
  extern int native_encode_expr (const_tree, unsigned char *, int, int off = -1);
  extern tree native_interpret_expr (tree, const unsigned char *, int);
+ extern bool can_native_encode_string_p (const_tree);
  
  /* Fold constants as much as possible in an expression.
     Returns the simplified expression.
diff -Nrcpad gcc-6.4.0/gcc/fortran/ChangeLog gcc-6.5.0/gcc/fortran/ChangeLog
*** gcc-6.4.0/gcc/fortran/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/fortran/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,484 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-09-07  Janus Weil  <janus@gcc.gnu.org>
+ 
+ 	Backported from trunk
+ 	PR fortran/86116
+ 	* interface.c (compare_type): Remove a CLASS/TYPE check.
+ 	(compare_type_characteristics): New function that behaves like the old
+ 	'compare_type'.
+ 	(gfc_check_dummy_characteristics, gfc_check_result_characteristics):
+ 	Call 'compare_type_characteristics' instead of 'compare_type'.
+ 
+ 2018-07-03  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/82969
+ 	PR fortran/86242
+ 	* trans-array.c (structure_alloc_comps): Do not explicitly copy
+ 	procedure pointer components.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-04-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR fortran/85313
+ 	* openmp.c (resolve_omp_do): Remove bogus if (j < i) break;.
+ 	(resolve_oacc_nested_loops): Likewise.  Formatting fix.
+ 
+ 	2017-11-24  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR fortran/81304
+ 	* trans-openmp.c (gfc_trans_omp_array_reduction_or_udr): Set
+ 	attr.implicit_type in intrinsic_sym to avoid undesirable warning.
+ 
+ 	2017-11-23  Dirk Broemmel  <d.broemmel@fz-juelich.de>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR fortran/81841
+ 	* parse.c (parse_spec): Allow ST_OMP_THREADPRIVATE inside of
+ 	BLOCK DATA.
+ 
+ 2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85138
+ 	PR fortran/85996
+ 	PR fortran/86051
+ 	* decl.c (gfc_match_char_spec): Use private namespace in attempt to
+ 	reduce a charlen to a constant.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85895
+ 	Backport from trunk
+ 	* resolve.c (resolve_sync): Resolve expression before checking for
+ 	an error.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85780
+ 	Backport from trunk
+ 	* resolve.c (resolve_fl_procedure): Avoid NULL dereference.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85779
+ 	Backport from trunk
+ 	* decl.c (gfc_match_derived_decl): Fix NULL pointer dereference.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85543
+ 	Backport from trunk
+ 	* resolve.c (update_current_proc_array_outer_dependency): Avoid NULL
+ 	pointer dereference.
+ 
+ 2018-05-16  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/83149
+ 	Backport from trunk
+ 	* trans-decl.c (gfc_finish_var_decl): Test sym->ns->proc_name
+ 	before accessing its components.
+ 	* trans-types.c (gfc_sym_type): If a character result has null
+ 	backend_decl, try the procedure symbol.
+ 
+ 2018-16-05  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/83898
+ 	Backport from trunk
+ 	* trans-stmt.c (trans_associate_var): Do not set cst_array_ctor
+ 	for characters.
+ 
+ 2018-05-13  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/68846
+ 	PR fortran/70864
+ 	Backport from trunk
+ 	* resolve.c (get_temp_from_expr): The temporary must not have
+ 	dummy or intent attributes.
+ 
+ 2018-05-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85542
+ 	Backport from trunk
+ 	* expr.c (check_inquiry): Avoid NULL pointer dereference.
+ 
+ 2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/70870
+ 	Backport from trunk
+ 	* data.c (gfc_assign_data_value): Check that a data object does
+ 	not also have default initialization.
+ 
+ 2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85521
+ 	Backport from trunk
+ 	* array.c (gfc_resolve_character_array_constructor): Substrings
+ 	with upper bound smaller than lower bound are zero length strings.
+ 
+ 2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85687
+ 	Backport from trunk
+ 	* check.c (gfc_check_rank): Check that the argument is a data object.
+ 
+ 2018-05-06  Andre Vehreschild  <vehre@gcc.gnu.org>
+ 
+ 	PR fortran/85507
+ 	Backport from trunk.
+ 	* dependency.c (gfc_dep_resolver): Revert looking at coarray dimension
+ 	introduced by r259385.
+ 	* trans-intrinsic.c (conv_caf_send): Always report a dependency for
+ 	same variables in coarray assignments.
+ 
+ 2018-04-28  Andre Vehreschild  <vehre@gcc.gnu.org>
+ 
+ 	PR fortran/81773
+ 	PR fortran/83606
+ 	Backport from trunk.
+ 	* dependency.c (gfc_dep_resolver): Coarray indexes are to be ignored
+ 	during dependency computation.  They define no data dependency.
+ 	* trans-array.c (conv_array_index_offset): The stride can not be set
+ 	here, prevent fail.
+ 	* trans-intrinsic.c (conv_caf_send): Add creation of temporary array
+ 	for caf_get's result and copying to the array with vectorial
+ 	indexing.
+ 
+ 2018-04-24  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85520
+ 	* decl.c (gfc_match_char_spec): Check for negative length and set to 0.
+ 
+ 2018-03-28  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	PR fortran/85084
+ 	Backport from trunk.
+ 	* frontend-passes.c (gfc_run_passes): Do not run front-end
+ 	optimizations if a previous error occurred.
+ 
+ 2018-03-20  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	ChangeLog entry for r258698
+ 	PR fortran/85001
+ 	* interface.c (symbol_rank): Remove bogus null pointer check that
+ 	crept in when translating a ternary operator into an if-else
+ 	constructor.
+ 
+ 2018-03-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	PR fortran/84931
+ 	Backport from trunk
+ 	* simplify.c (gfc_convert_constant): Correctly handle iterators
+ 	for type conversion.
+ 
+ 2018-03-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/65453
+ 	* decl.c (get_proc_name): Catch clash between a procedure statement
+ 	and a contained subprogram
+ 
+ 2018-03-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83939
+ 	* resolve.c (resolve_fl_procedure): Enforce F2018:C15100.
+ 
+ 2018-03-10  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/84734
+ 	* arith.c (check_result, eval_intrinsic):  If result overflows, pass
+ 	the expression up the chain instead of a NULL pointer.
+ 
+ 2018-03-08 Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/64124
+ 	PR fortran/70409
+ 	* decl.c (gfc_match_char_spec): Try to reduce a charlen to a constant.
+ 
+ 2018-03-06  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/56667
+ 	* primary.c (match_sym_complex_part): Give the matcher for an implied
+ 	do-loop a chance to run.
+ 
+ 2018-03-03  Harald Anlauf  <anlauf@gmx.de>
+ 
+ 	PR fortran/71085
+ 	* trans-expr.c (gfc_apply_interface_mapping_to_expr): Do not
+ 	dereference NULL pointer.
+ 
+ 2018-03-03  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk.
+ 	PR fortran/78990
+ 	* expr.c (gfc_is_class_array_function): Renamed from
+ 	'gfc_is_alloc_class_array_function' and modified to return true
+ 	for pointers as well as allocatable results.
+ 	* gfortran.h : Change of name for prototype of above function.
+ 	* trans-array.c (gfc_add_loop_ss_code): Force finalization of
+ 	class array results.
+ 	(build_class_array_ref): Change assertion into a condition.
+ 	(build_class_array_ref): Set the se class_vptr for class array
+ 	function results.
+ 	(gfc_walk_function_expr): Reference gfc_is_class_array_function
+ 	as above.
+ 	* trans-decl.c (get_proc_result): Move it up before
+ 	gfc_trans_deferred_vars.
+ 	(gfc_trans_deferred_vars): Nullify explicit return class arrays
+ 	on entry.
+ 	* trans-expr.c (gfc_conv_class_to_class): Allow conversion of
+ 	class array functions that have an se class_vptr and use it
+ 	for the result vptr.
+ 	(gfc_conv_subref_array_arg): Rename reference to the above
+ 	function.
+ 	(gfc_conv_procedure_call): Ditto. Add the se pre block to the
+ 	loop pre block before the function is evaluated. Do not
+ 	finalize class pointer results.
+ 	(arrayfunc_assign_needs_temporary, gfc_trans_assignment_1) More
+ 	renamed references.
+ 	* trans-intrinsic.c (gfc_conv_intrinsic_size): Ditto.
+ 
+ 2018-02-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83633
+ 	* decl.c (variable_decl): Check that an explicit-shape-array with
+ 	nonconstant bounds is allowed.
+ 
+ 2018-02-24  Steven G. Kargl <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/30792
+ 	* decl.c (gfc_match_data): Check for invalid substring in
+ 	data-implied-do
+ 
+ 2018-02-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/84506
+ 	* trans-io.c (set_parameter_value_inquire): Adjust range check of
+ 	negative unit values for kind=8 units to the kind=4 negative limit.
+ 
+ 2018-02-23  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/84511
+ 	* trans-io.c (transfer_expr): Deal with C_LOC in transfer statement.
+ 
+ 2018-02-23  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/84346
+ 	* interface.c (compare_actual_formal): Issue error if keyword is
+ 	used in a statement function.
+ 
+ 2018-02-13  Alastair McKinstry  <alastair.mckinstry@sceal.ie>
+ 	    Janne Blomqvist  <jb@gcc.gnu.org>
+ 
+ 	* module.c (dump_module): Use lbasename to ensure that module
+ 	files are reproducible.
+ 
+ 2018-02-12  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	PR fortran/68560
+ 	* gfortran.dg/shape_9.f90: New test.
+ 
+ 2018-02-12  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+ 
+ 	PR fortran/35299
+ 	ChangeLog for r257566
+ 	* resolve.c (resolve_formal_arglist): Update error message.
+ 
+ 2018-02-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/54223
+ 	PR fortran/84276
+ 	* interface.c (compare_actual_formal): Add in_statement_function
+ 	bool parameter.  Skip check of INTENT attribute for statement
+ 	functions.  Arguments to a statement function cannot be optional,
+ 	issue error for missing argument.
+ 	(gfc_procedure_use, gfc_ppc_use, gfc_arglist_matches_symbol): Use
+ 	in_statement_function.
+ 
+ 2018-02-07  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/82994
+ 	* match.c (gfc_match_deallocate): Check for NULL pointer.
+ 
+ 2018-02-07  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/82049
+ 	* match.c (gfc_match_type_spec): If the charlen is non-NULL, then
+ 	try to resolve it.  While here return early if possible.
+ 
+ 2018-01-20  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83900
+     * simplify.c (gfc_simplify_matmul): Set return type correctly.
+ 
+ 2018-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83900
+ 	* simplify.c (gfc_simplify_matmul): Delete bogus assertion.
+ 
+ 2018-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport of r250734 from mainline
+ 	PR fortran/80768
+ 	* check.c (gfc_check_num_images): Fix typo.
+ 
+ 2018-01-17  Harald Anlauf  <anlauf@gmx.de>
+ 
+ 	Back from mainline
+ 	PR fortran/83874
+ 	* decl.c (add_init_expr_to_sym): Do not dereference NULL pointer.
+ 
+ 2018-01-13  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	PR fortran/78814
+ 	* interface.c (symbol_rank): Check for NULL pointer.
+ 
+ 2018-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/82367
+ 	* resolve.c (resolve_allocate_expr): Check for NULL pointer.
+ 
+ 2018-01-10 Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/83093
+ 	* resolve.c (resolve_charlen): Check the type of cl->length
+ 	after resolution.
+ 
+ 2018-01-10  Steven G. Kargl  <kargl@kgcc.gnu.org>
+ 
+ 	Backport r254555 from trunk
+ 	PR Fortran/82841
+ 	* simplify.c(gfc_simplify_transfer): Do not dereference a NULL pointer.
+ 	Unwrap a short line.
+ 
+ 2018-01-04  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR Fortran/83679
+ 	* simplify.c (gfc_simplify_cshift): Restore early return for zero-sized
+ 	array.  Update Copyright year while here.
+ 
+ 2018-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	Backport from 7-branch
+ 	PR fortran/83650
+ 	* simplify.c (gfc_simplify_cshift): Correct contition for
+ 	negative shifts.
+ 
+ 2017-11-13  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/82934
+ 	* trans-stmt.c (gfc_trans_allocate): Remove the gcc_assert on
+ 	null string length for assumed length typespec and set
+ 	expr3_esize to NULL_TREE;
+ 
+ 2017-11-13  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/78619
+ 	* check.c (same_type_check): Introduce a new argument 'assoc'
+ 	with default value false. If this is true, use the symbol type
+ 	spec of BT_PROCEDURE expressions.
+ 	(gfc_check_associated): Set 'assoc' true in the call to
+ 	'same_type_check'.
+ 
+ 2017-11-06  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backported from trunk
+ 	PR fortran/78641
+ 	* resolve.c (resolve_ordinary_assign): Do not add the _data
+ 	component for class valued array constructors being assigned
+ 	to derived type arrays.
+ 	* trans-array.c (gfc_trans_array_ctor_element): Take the _data
+ 	of class valued elements for assignment to derived type arrays.
+ 
+ 2017-11-06  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backported from trunk
+ 	PR fortran/69739
+ 	* trans-expr.c (gfc_map_intrinsic_function): Return false for
+ 	bounds without the DIM argument instead of ICEing.
+ 
+ 2017-11-01  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/82796
+ 	* resolve.c (resolve_equivalence): An entity in a common block within
+  	a module cannot appear in an equivalence statement if the entity is
+ 	with a pure procedure.
+ 
+ 2017-11-03  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from 7-branch
+ 	PR fortran/81735
+ 	* trans-decl.c (gfc_trans_deferred_vars): Correct case where
+ 	'tmp' can be used unititialized.
+ 
+ 2017-11-01  Andre Vehreschild  <vehre@gcc.gnu.org>
+ 	Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/78293
+ 	* trans-expr.c (gfc_conv_procedure_call): Prepend deallocation
+ 	of alloctable components to post, rather than adding to
+ 	se->post.
+ 	* trans-stmt.c (gfc_trans_allocate): Move deallocation of expr3
+ 	allocatable components so that all expr3s are visited.
+ 
+ 2017-11-01  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/80554
+ 	* decl.c (build_sym): In a submodule allow overriding of host
+ 	associated symbols from the ancestor module with a new
+ 	declaration.
+ 
+ 2017-11-01  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/80554
+ 	* gfortran.dg/submodule_29.f08: New test.
+ 
+ 2017-10-20  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/79795
+ 	* resolve.c (resovle_symbol): Change gcc_assert to
+ 	sensible error message.
+ 
+ 2017-10-19  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/79402
+ 	* resolve.c (fixup_unique_dummy): New function.
+ 	(gfc_resolve_expr): Call it for dummy variables with a unique
+ 	symtree name.
+ 
+ 2017-10-19  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/81048
+ 	* resolve.c (resolve_symbol): Ensure that derived type array
+ 	results get default initialization.
+ 
+ 2017-10-06  Thomas Koenig <tkoenig@gcc.gnu.org>
+ 	    Steven G. Kargl <kargl@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	* expr.c (gfc_get_full_arrayspec_from_expr): If there is
+ 	no symtree, set array spec to NULL.
+ 
+ 2017-09-02  Janus Weil  <janus@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/81770
+ 	* expr.c (gfc_check_pointer_assign): Improve the check whether pointer
+ 	may outlive pointer target.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/fortran/arith.c gcc-6.5.0/gcc/fortran/arith.c
*** gcc-6.4.0/gcc/fortran/arith.c	Mon Nov  7 13:46:31 2016
--- gcc-6.5.0/gcc/fortran/arith.c	Sat Mar 10 19:00:49 2018
*************** check_result (arith rc, gfc_expr *x, gfc
*** 555,564 ****
        val = ARITH_OK;
      }
  
!   if (val != ARITH_OK)
!     gfc_free_expr (r);
!   else
      *rp = r;
  
    return val;
  }
--- 555,564 ----
        val = ARITH_OK;
      }
  
!   if (val == ARITH_OK || val == ARITH_OVERFLOW)
      *rp = r;
+   else
+     gfc_free_expr (r);
  
    return val;
  }
*************** eval_intrinsic (gfc_intrinsic_op op,
*** 1599,1607 ****
--- 1599,1611 ----
    if (rc != ARITH_OK)
      {
        gfc_error (gfc_arith_error (rc), &op1->where);
+       if (rc == ARITH_OVERFLOW)
+ 	goto done;
        return NULL;
      }
  
+ done:
+ 
    gfc_free_expr (op1);
    gfc_free_expr (op2);
    return result;
diff -Nrcpad gcc-6.4.0/gcc/fortran/array.c gcc-6.5.0/gcc/fortran/array.c
*** gcc-6.4.0/gcc/fortran/array.c	Wed Sep 28 20:18:56 2016
--- gcc-6.5.0/gcc/fortran/array.c	Fri May 11 18:34:14 2018
*************** got_charlen:
*** 2018,2024 ****
  	  else
  	    return true;
  
! 	  gcc_assert (current_length != -1);
  
  	  if (found_length == -1)
  	    found_length = current_length;
--- 2018,2025 ----
  	  else
  	    return true;
  
! 	  if (current_length < 0)
! 	    current_length = 0;
  
  	  if (found_length == -1)
  	    found_length = current_length;
diff -Nrcpad gcc-6.4.0/gcc/fortran/check.c gcc-6.5.0/gcc/fortran/check.c
*** gcc-6.4.0/gcc/fortran/check.c	Wed Sep 28 20:18:56 2016
--- gcc-6.5.0/gcc/fortran/check.c	Fri May 11 18:33:05 2018
*************** less_than_bitsize2 (const char *arg1, gf
*** 404,418 ****
  /* Make sure two expressions have the same type.  */
  
  static bool
! same_type_check (gfc_expr *e, int n, gfc_expr *f, int m)
  {
    gfc_typespec *ets = &e->ts;
    gfc_typespec *fts = &f->ts;
  
!   if (e->ts.type == BT_PROCEDURE && e->symtree->n.sym)
!     ets = &e->symtree->n.sym->ts;
!   if (f->ts.type == BT_PROCEDURE && f->symtree->n.sym)
!     fts = &f->symtree->n.sym->ts;
  
    if (gfc_compare_types (ets, fts))
      return true;
--- 404,425 ----
  /* Make sure two expressions have the same type.  */
  
  static bool
! same_type_check (gfc_expr *e, int n, gfc_expr *f, int m, bool assoc = false)
  {
    gfc_typespec *ets = &e->ts;
    gfc_typespec *fts = &f->ts;
  
!   if (assoc)
!     {
!       /* Procedure pointer component expressions have the type of the interface
! 	 procedure. If they are being tested for association with a procedure
! 	 pointer (ie. not a component), the type of the procedure must be
! 	 determined.  */
!       if (e->ts.type == BT_PROCEDURE && e->symtree->n.sym)
! 	ets = &e->symtree->n.sym->ts;
!       if (f->ts.type == BT_PROCEDURE && f->symtree->n.sym)
! 	fts = &f->symtree->n.sym->ts;
!     }
  
    if (gfc_compare_types (ets, fts))
      return true;
*************** gfc_check_associated (gfc_expr *pointer,
*** 968,974 ****
      }
  
    t = true;
!   if (!same_type_check (pointer, 0, target, 1))
      t = false;
    if (!rank_check (target, 0, pointer->rank))
      t = false;
--- 975,981 ----
      }
  
    t = true;
!   if (!same_type_check (pointer, 0, target, 1, true))
      t = false;
    if (!rank_check (target, 0, pointer->rank))
      t = false;
*************** gfc_check_rank (gfc_expr *a ATTRIBUTE_UN
*** 3629,3636 ****
  		  ? a->value.function.esym->result->attr.pointer
  		  : a->symtree->n.sym->result->attr.pointer;
  
!   if (a->expr_type == EXPR_OP || a->expr_type == EXPR_NULL
!       || a->expr_type == EXPR_COMPCALL|| a->expr_type == EXPR_PPC
        || !is_variable)
      {
        gfc_error ("The argument of the RANK intrinsic at %L must be a data "
--- 3636,3646 ----
  		  ? a->value.function.esym->result->attr.pointer
  		  : a->symtree->n.sym->result->attr.pointer;
  
!   if (a->expr_type == EXPR_OP
!       || a->expr_type == EXPR_NULL
!       || a->expr_type == EXPR_COMPCALL
!       || a->expr_type == EXPR_PPC
!       || a->ts.type == BT_PROCEDURE
        || !is_variable)
      {
        gfc_error ("The argument of the RANK intrinsic at %L must be a data "
*************** gfc_check_num_images (gfc_expr *distance
*** 5021,5027 ****
  	return false;
  
        if (!gfc_notify_std (GFC_STD_F2008_TS, "FAILED= argument to "
! 			   "NUM_IMAGES at %L", &distance->where))
  	return false;
      }
  
--- 5031,5037 ----
  	return false;
  
        if (!gfc_notify_std (GFC_STD_F2008_TS, "FAILED= argument to "
! 			   "NUM_IMAGES at %L", &failed->where))
  	return false;
      }
  
diff -Nrcpad gcc-6.4.0/gcc/fortran/data.c gcc-6.5.0/gcc/fortran/data.c
*** gcc-6.4.0/gcc/fortran/data.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/fortran/data.c	Fri May 11 18:35:20 2018
*************** gfc_assign_data_value (gfc_expr *lvalue,
*** 489,494 ****
--- 489,503 ----
      }
    else
      {
+       if (lvalue->ts.type == BT_DERIVED
+ 	  && gfc_has_default_initializer (lvalue->ts.u.derived))
+ 	{
+ 	  gfc_error ("Nonpointer object %qs with default initialization "
+ 		     "shall not appear in a DATA statement at %L", 
+ 		     symbol->name, &lvalue->where);
+ 	  return false;
+ 	}
+ 
        /* Overwriting an existing initializer is non-standard but usually only
  	 provokes a warning from other compilers.  */
        if (init != NULL)
diff -Nrcpad gcc-6.4.0/gcc/fortran/decl.c gcc-6.5.0/gcc/fortran/decl.c
*** gcc-6.4.0/gcc/fortran/decl.c	Thu Dec 22 17:05:13 2016
--- gcc-6.5.0/gcc/fortran/decl.c	Sat Jun  9 18:35:58 2018
*************** gfc_match_data (void)
*** 573,578 ****
--- 573,592 ----
        if (m != MATCH_YES)
  	goto cleanup;
  
+       if (new_data->var->iter.var
+ 	  && new_data->var->iter.var->ts.type == BT_INTEGER
+ 	  && new_data->var->iter.var->symtree->n.sym->attr.implied_index == 1
+ 	  && new_data->var->list
+ 	  && new_data->var->list->expr
+ 	  && new_data->var->list->expr->ts.type == BT_CHARACTER
+ 	  && new_data->var->list->expr->ref
+ 	  && new_data->var->list->expr->ref->type == REF_SUBSTRING)
+ 	{
+ 	  gfc_error ("Invalid substring in data-implied-do at %L in DATA "
+ 		     "statement", &new_data->var->list->expr->where);
+ 	  goto cleanup;
+ 	}
+ 
        m = top_val_list (new_data);
        if (m != MATCH_YES)
  	goto cleanup;
*************** get_proc_name (const char *name, gfc_sym
*** 1157,1162 ****
--- 1171,1182 ----
  	gfc_error_now ("Procedure %qs at %C is already defined at %L",
  		       name, &sym->declared_at);
  
+       if (sym->attr.external && sym->attr.procedure
+ 	  && gfc_current_state () == COMP_CONTAINS)
+ 	gfc_error_now ("Contained procedure %qs at %C clashes with "
+ 			"procedure defined at %L",
+ 		       name, &sym->declared_at);
+ 
        /* Trap a procedure with a name the same as interface in the
  	 encompassing scope.  */
        if (sym->attr.generic != 0
*************** build_sym (const char *name, gfc_charlen
*** 1383,1390 ****
    symbol_attribute attr;
    gfc_symbol *sym;
    int upper;
  
!   if (gfc_get_symbol (name, NULL, &sym))
      return false;
  
    /* Check if the name has already been defined as a type.  The
--- 1403,1430 ----
    symbol_attribute attr;
    gfc_symbol *sym;
    int upper;
+   gfc_symtree *st;
  
!   /* Symbols in a submodule are host associated from the parent module or
!      submodules. Therefore, they can be overridden by declarations in the
!      submodule scope. Deal with this by attaching the existing symbol to
!      a new symtree and recycling the old symtree with a new symbol...  */
!   st = gfc_find_symtree (gfc_current_ns->sym_root, name);
!   if (st != NULL && gfc_state_stack->state == COMP_SUBMODULE
!       && st->n.sym != NULL
!       && st->n.sym->attr.host_assoc && st->n.sym->attr.used_in_submodule)
!     {
!       gfc_symtree *s = gfc_get_unique_symtree (gfc_current_ns);
!       s->n.sym = st->n.sym;
!       sym = gfc_new_symbol (name, gfc_current_ns);
! 
! 
!       st->n.sym = sym;
!       sym->refs++;
!       gfc_set_sym_referenced (sym);
!     }
!   /* ...Otherwise generate a new symtree and new symbol.  */
!   else if (gfc_get_symbol (name, NULL, &sym))
      return false;
  
    /* Check if the name has already been defined as a type.  The
*************** add_init_expr_to_sym (const char *name,
*** 1672,1678 ****
  		    }
  		  else if (init->expr_type == EXPR_ARRAY)
  		    {
! 		      if (init->ts.u.cl)
  			clen = mpz_get_si (init->ts.u.cl->length->value.integer);
  		      else if (init->value.constructor)
  			{
--- 1712,1718 ----
  		    }
  		  else if (init->expr_type == EXPR_ARRAY)
  		    {
! 		      if (init->ts.u.cl && init->ts.u.cl->length)
  			clen = mpz_get_si (init->ts.u.cl->length->value.integer);
  		      else if (init->value.constructor)
  			{
*************** variable_decl (int elem)
*** 2186,2192 ****
    /* At this point, we know for sure if the symbol is PARAMETER and can thus
       determine (and check) whether it can be implied-shape.  If it
       was parsed as assumed-size, change it because PARAMETERs can not
!      be assumed-size.  */
    if (as)
      {
        if (as->type == AS_IMPLIED_SHAPE && current_attr.flavor != FL_PARAMETER)
--- 2226,2235 ----
    /* At this point, we know for sure if the symbol is PARAMETER and can thus
       determine (and check) whether it can be implied-shape.  If it
       was parsed as assumed-size, change it because PARAMETERs can not
!      be assumed-size.
! 
!      An explicit-shape-array cannot appear under several conditions.
!      That check is done here as well.  */
    if (as)
      {
        if (as->type == AS_IMPLIED_SHAPE && current_attr.flavor != FL_PARAMETER)
*************** variable_decl (int elem)
*** 2208,2213 ****
--- 2251,2300 ----
  	  m = MATCH_ERROR;
  	  goto cleanup;
  	}
+ 
+       /* F2018:C830 (R816) An explicit-shape-spec whose bounds are not
+ 	 constant expressions shall appear only in a subprogram, derived
+ 	 type definition, BLOCK construct, or interface body.  */
+       if (as->type == AS_EXPLICIT
+ 	  && gfc_current_state () != COMP_BLOCK
+ 	  && gfc_current_state () != COMP_DERIVED
+ 	  && gfc_current_state () != COMP_FUNCTION
+ 	  && gfc_current_state () != COMP_INTERFACE
+ 	  && gfc_current_state () != COMP_SUBROUTINE)
+ 	{
+ 	  gfc_expr *e;
+ 	  bool not_constant = false;
+ 
+ 	  for (int i = 0; i < as->rank; i++)
+ 	    {
+ 	      e = gfc_copy_expr (as->lower[i]);
+ 	      gfc_resolve_expr (e);
+ 	      gfc_simplify_expr (e, 0);
+ 	      if (e && (e->expr_type != EXPR_CONSTANT))
+ 		{
+ 		  not_constant = true;
+ 		  break;
+ 		}
+ 	      gfc_free_expr (e);
+ 
+ 	      e = gfc_copy_expr (as->upper[i]);
+ 	      gfc_resolve_expr (e);
+ 	      gfc_simplify_expr (e, 0);
+ 	      if (e && (e->expr_type != EXPR_CONSTANT))
+ 		{
+ 		  not_constant = true;
+ 		  break;
+ 		}
+ 	      gfc_free_expr (e);
+ 	    }
+ 
+ 	  if (not_constant)
+ 	    { 
+ 	      gfc_error ("Explicit shaped array with nonconstant bounds at %C");
+ 	      m = MATCH_ERROR;
+ 	      goto cleanup;
+ 	    }
+ 	}
      }
  
    char_len = NULL;
*************** done:
*** 2926,2932 ****
    if (seen_length == 0)
      cl->length = gfc_get_int_expr (gfc_default_integer_kind, NULL, 1);
    else
!     cl->length = len;
  
    ts->u.cl = cl;
    ts->kind = kind == 0 ? gfc_default_character_kind : kind;
--- 3013,3050 ----
    if (seen_length == 0)
      cl->length = gfc_get_int_expr (gfc_default_integer_kind, NULL, 1);
    else
!     {
!       /* If gfortran ends up here, then len may be reducible to a constant.
! 	 Try to do that here.  If it does not reduce, simply assign len to
! 	 charlen.  A complication occurs with user-defined generic functions,
! 	 which are not resolved.  Use a private namespace to deal with
! 	 generic functions.  */
! 
!       if (len && len->expr_type != EXPR_CONSTANT)
! 	{
! 	  gfc_namespace *old_ns;
! 	  gfc_expr *e;
! 
! 	  old_ns = gfc_current_ns;
! 	  gfc_current_ns = gfc_get_namespace (NULL, 0);
! 
! 	  e = gfc_copy_expr (len);
! 	  gfc_reduce_init_expr (e);
! 	  if (e->expr_type == EXPR_CONSTANT)
! 	    {
! 	      gfc_replace_expr (len, e);
! 	      if (mpz_cmp_si (len->value.integer, 0) < 0)
! 		mpz_set_ui (len->value.integer, 0);
! 	    }
! 	  else
! 	    gfc_free_expr (e);
! 
! 	  gfc_free_namespace (gfc_current_ns);
! 	  gfc_current_ns = old_ns;
! 	}
! 
!       cl->length = len;
!     }
  
    ts->u.cl = cl;
    ts->kind = kind == 0 ? gfc_default_character_kind : kind;
*************** gfc_match_derived_decl (void)
*** 8647,8654 ****
  
    if (!gensym->attr.generic && gensym->ts.type != BT_UNKNOWN)
      {
!       gfc_error ("Derived type name %qs at %C already has a basic type "
! 		 "of %s", gensym->name, gfc_typename (&gensym->ts));
        return MATCH_ERROR;
      }
  
--- 8765,8776 ----
  
    if (!gensym->attr.generic && gensym->ts.type != BT_UNKNOWN)
      {
!       if (gensym->ts.u.derived)
! 	gfc_error ("Derived type name %qs at %C already has a basic type "
! 		   "of %s", gensym->name, gfc_typename (&gensym->ts));
!       else
! 	gfc_error ("Derived type name %qs at %C already has a basic type",
! 		   gensym->name);
        return MATCH_ERROR;
      }
  
diff -Nrcpad gcc-6.4.0/gcc/fortran/expr.c gcc-6.5.0/gcc/fortran/expr.c
*** gcc-6.4.0/gcc/fortran/expr.c	Mon May 15 23:02:42 2017
--- gcc-6.5.0/gcc/fortran/expr.c	Sat May 12 17:17:19 2018
*************** check_inquiry (gfc_expr *e, int not_rest
*** 2321,2327 ****
  
  	/* Assumed character length will not reduce to a constant expression
  	   with LEN, as required by the standard.  */
! 	if (i == 5 && not_restricted
  	    && ap->expr->symtree->n.sym->ts.type == BT_CHARACTER
  	    && (ap->expr->symtree->n.sym->ts.u.cl->length == NULL
  		|| ap->expr->symtree->n.sym->ts.deferred))
--- 2321,2327 ----
  
  	/* Assumed character length will not reduce to a constant expression
  	   with LEN, as required by the standard.  */
! 	if (i == 5 && not_restricted && ap->expr->symtree
  	    && ap->expr->symtree->n.sym->ts.type == BT_CHARACTER
  	    && (ap->expr->symtree->n.sym->ts.u.cl->length == NULL
  		|| ap->expr->symtree->n.sym->ts.deferred))
*************** gfc_check_pointer_assign (gfc_expr *lval
*** 3768,3774 ****
    if (warn_target_lifetime
        && rvalue->expr_type == EXPR_VARIABLE
        && !rvalue->symtree->n.sym->attr.save
!       && !attr.pointer && !rvalue->symtree->n.sym->attr.host_assoc
        && !rvalue->symtree->n.sym->attr.in_common
        && !rvalue->symtree->n.sym->attr.use_assoc
        && !rvalue->symtree->n.sym->attr.dummy)
--- 3768,3775 ----
    if (warn_target_lifetime
        && rvalue->expr_type == EXPR_VARIABLE
        && !rvalue->symtree->n.sym->attr.save
!       && !rvalue->symtree->n.sym->attr.pointer && !attr.pointer
!       && !rvalue->symtree->n.sym->attr.host_assoc
        && !rvalue->symtree->n.sym->attr.in_common
        && !rvalue->symtree->n.sym->attr.use_assoc
        && !rvalue->symtree->n.sym->attr.dummy)
*************** gfc_get_full_arrayspec_from_expr (gfc_ex
*** 4101,4107 ****
    if (expr->expr_type == EXPR_VARIABLE
        || expr->expr_type == EXPR_CONSTANT)
      {
!       as = expr->symtree->n.sym->as;
        for (ref = expr->ref; ref; ref = ref->next)
  	{
  	  switch (ref->type)
--- 4102,4112 ----
    if (expr->expr_type == EXPR_VARIABLE
        || expr->expr_type == EXPR_CONSTANT)
      {
!       if (expr->symtree)
! 	as = expr->symtree->n.sym->as;
!       else
! 	as = NULL;
! 
        for (ref = expr->ref; ref; ref = ref->next)
  	{
  	  switch (ref->type)
*************** gfc_is_alloc_class_scalar_function (gfc_
*** 4343,4356 ****
  /* Determine if an expression is a function with an allocatable class array
     result.  */
  bool
! gfc_is_alloc_class_array_function (gfc_expr *expr)
  {
    if (expr->expr_type == EXPR_FUNCTION
        && expr->value.function.esym
        && expr->value.function.esym->result
        && expr->value.function.esym->result->ts.type == BT_CLASS
        && CLASS_DATA (expr->value.function.esym->result)->attr.dimension
!       && CLASS_DATA (expr->value.function.esym->result)->attr.allocatable)
      return true;
  
    return false;
--- 4348,4362 ----
  /* Determine if an expression is a function with an allocatable class array
     result.  */
  bool
! gfc_is_class_array_function (gfc_expr *expr)
  {
    if (expr->expr_type == EXPR_FUNCTION
        && expr->value.function.esym
        && expr->value.function.esym->result
        && expr->value.function.esym->result->ts.type == BT_CLASS
        && CLASS_DATA (expr->value.function.esym->result)->attr.dimension
!       && (CLASS_DATA (expr->value.function.esym->result)->attr.allocatable
! 	  || CLASS_DATA (expr->value.function.esym->result)->attr.pointer))
      return true;
  
    return false;
diff -Nrcpad gcc-6.4.0/gcc/fortran/frontend-passes.c gcc-6.5.0/gcc/fortran/frontend-passes.c
*** gcc-6.4.0/gcc/fortran/frontend-passes.c	Fri Jun  2 19:29:29 2017
--- gcc-6.5.0/gcc/fortran/frontend-passes.c	Wed Mar 28 17:41:51 2018
*************** gfc_run_passes (gfc_namespace *ns)
*** 127,132 ****
--- 127,136 ----
    doloop_list.release ();
    int w, e;
  
+   gfc_get_errors (&w, &e);
+   if (e > 0)
+    return;
+ 
    if (flag_frontend_optimize)
      {
        optimize_namespace (ns);
*************** gfc_run_passes (gfc_namespace *ns)
*** 137,146 ****
        expr_array.release ();
      }
  
-   gfc_get_errors (&w, &e);
-   if (e > 0)
-    return;
- 
    if (flag_realloc_lhs)
      realloc_strings (ns);
  }
--- 141,146 ----
diff -Nrcpad gcc-6.4.0/gcc/fortran/gfortran.h gcc-6.5.0/gcc/fortran/gfortran.h
*** gcc-6.4.0/gcc/fortran/gfortran.h	Sat May 14 19:52:46 2016
--- gcc-6.5.0/gcc/fortran/gfortran.h	Sat Mar  3 18:00:39 2018
*************** bool gfc_expr_check_typed (gfc_expr*, gf
*** 3057,3063 ****
  gfc_component * gfc_get_proc_ptr_comp (gfc_expr *);
  bool gfc_is_proc_ptr_comp (gfc_expr *);
  bool gfc_is_alloc_class_scalar_function (gfc_expr *);
! bool gfc_is_alloc_class_array_function (gfc_expr *);
  
  bool gfc_ref_this_image (gfc_ref *ref);
  bool gfc_is_coindexed (gfc_expr *);
--- 3057,3063 ----
  gfc_component * gfc_get_proc_ptr_comp (gfc_expr *);
  bool gfc_is_proc_ptr_comp (gfc_expr *);
  bool gfc_is_alloc_class_scalar_function (gfc_expr *);
! bool gfc_is_class_array_function (gfc_expr *);
  
  bool gfc_ref_this_image (gfc_ref *ref);
  bool gfc_is_coindexed (gfc_expr *);
diff -Nrcpad gcc-6.4.0/gcc/fortran/gfortran.info gcc-6.5.0/gcc/fortran/gfortran.info
*** gcc-6.4.0/gcc/fortran/gfortran.info	Tue Jul  4 09:27:46 2017
--- gcc-6.5.0/gcc/fortran/gfortran.info	Fri Oct 26 10:07:29 2018
***************
*** 1,5 ****
! This is doc/gfortran.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/fortran/gfortran.texi.
  
  Copyright (C) 1999-2016 Free Software Foundation, Inc.
  
--- 1,5 ----
! This is gfortran.info, produced by makeinfo version 6.4 from
! gfortran.texi.
  
  Copyright (C) 1999-2016 Free Software Foundation, Inc.
  
*************** Free Documentation License".
*** 18,32 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * gfortran: (gfortran).                  The GNU Fortran Compiler.
  END-INFO-DIR-ENTRY
     This file documents the use and the internals of the GNU Fortran
! compiler, (`gfortran').
  
     Published by the Free Software Foundation 51 Franklin Street, Fifth
  Floor Boston, MA 02110-1301 USA
--- 18,32 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  INFO-DIR-SECTION Software development
  START-INFO-DIR-ENTRY
  * gfortran: (gfortran).                  The GNU Fortran Compiler.
  END-INFO-DIR-ENTRY
+ 
     This file documents the use and the internals of the GNU Fortran
! compiler, ('gfortran').
  
     Published by the Free Software Foundation 51 Franklin Street, Fifth
  Floor Boston, MA 02110-1301 USA
*************** Free Documentation License".
*** 48,55 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
  
  
  File: gfortran.info,  Node: Top,  Next: Introduction,  Up: (dir)
--- 48,55 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  
  
  File: gfortran.info,  Node: Top,  Next: Introduction,  Up: (dir)
*************** File: gfortran.info,  Node: Top,  Next:
*** 57,64 ****
  Introduction
  ************
  
! This manual documents the use of `gfortran', the GNU Fortran compiler.
! You can find in this manual how to invoke `gfortran', as well as its
  features and incompatibilities.
  
  * Menu:
--- 57,64 ----
  Introduction
  ************
  
! This manual documents the use of 'gfortran', the GNU Fortran compiler.
! You can find in this manual how to invoke 'gfortran', as well as its
  features and incompatibilities.
  
  * Menu:
*************** features and incompatibilities.
*** 66,72 ****
  * Introduction::
  
  Part I: Invoking GNU Fortran
! * Invoking GNU Fortran:: Command options supported by `gfortran'.
  * Runtime::              Influencing runtime behavior with environment variables.
  
  Part II: Language Reference
--- 66,72 ----
  * Introduction::
  
  Part I: Invoking GNU Fortran
! * Invoking GNU Fortran:: Command options supported by 'gfortran'.
  * Runtime::              Influencing runtime behavior with environment variables.
  
  Part II: Language Reference
*************** File: gfortran.info,  Node: Introduction
*** 94,100 ****
  **************
  
  The GNU Fortran compiler front end was designed initially as a free
! replacement for, or alternative to, the Unix `f95' command; `gfortran'
  is the command you will use to invoke the compiler.
  
  * Menu:
--- 94,100 ----
  **************
  
  The GNU Fortran compiler front end was designed initially as a free
! replacement for, or alternative to, the Unix 'f95' command; 'gfortran'
  is the command you will use to invoke the compiler.
  
  * Menu:
*************** completely, parts of the Fortran 2003 an
*** 117,190 ****
  several vendor extensions.  The development goal is to provide the
  following features:
  
!    * Read a user's program, stored in a file and containing
!      instructions written in Fortran 77, Fortran 90, Fortran 95,
!      Fortran 2003 or Fortran 2008.  This file contains "source code".
  
!    * Translate the user's program into instructions a computer can
!      carry out more quickly than it takes to translate the instructions
!      in the first place.  The result after compilation of a program is
!      "machine code", code designed to be efficiently translated and
!      processed by a machine such as your computer.  Humans usually are
!      not as good writing machine code as they are at writing Fortran
!      (or C++, Ada, or Java), because it is easy to make tiny mistakes
!      writing machine code.
  
     * Provide the user with information about the reasons why the
       compiler is unable to create a binary from the source code.
       Usually this will be the case if the source code is flawed.  The
       Fortran 90 standard requires that the compiler can point out
!      mistakes to the user.  An incorrect usage of the language causes
!      an "error message".
  
       The compiler will also attempt to diagnose cases where the user's
!      program contains a correct usage of the language, but instructs
!      the computer to do something questionable.  This kind of
!      diagnostics message is called a "warning message".
  
     * Provide optional information about the translation passes from the
       source code to machine code.  This can help a user of the compiler
       to find the cause of certain bugs which may not be obvious in the
!      source code, but may be more easily found at a lower level
!      compiler output.  It also helps developers to find bugs in the
!      compiler itself.
  
     * Provide information in the generated machine code that can make it
       easier to find bugs in the program (using a debugging tool, called
!      a "debugger", such as the GNU Debugger `gdb').
  
!    * Locate and gather machine code already generated to perform
!      actions requested by statements in the user's program.  This
!      machine code is organized into "modules" and is located and
!      "linked" to the user program.
  
     The GNU Fortran compiler consists of several components:
  
!    * A version of the `gcc' command (which also might be installed as
!      the system's `cc' command) that also understands and accepts
!      Fortran source code.  The `gcc' command is the "driver" program for
!      all the languages in the GNU Compiler Collection (GCC); With `gcc',
       you can compile the source code of any language for which a front
       end is available in GCC.
  
!    * The `gfortran' command itself, which also might be installed as the
!      system's `f95' command.  `gfortran' is just another driver program,
       but specifically for the Fortran compiler only.  The difference
!      with `gcc' is that `gfortran' will automatically link the correct
       libraries to your program.
  
     * A collection of run-time libraries.  These libraries contain the
!      machine code needed to support capabilities of the Fortran
!      language that are not directly provided by the machine code
!      generated by the `gfortran' compilation phase, such as intrinsic
!      functions and subroutines, and routines for interaction with files
!      and the operating system.
  
!    * The Fortran compiler itself, (`f951').  This is the GNU Fortran
       parser and code generator, linked to and interfaced with the GCC
!      backend library.  `f951' "translates" the source code to assembler
       code.  You would typically not use this program directly; instead,
!      the `gcc' or `gfortran' driver programs will call it for you.
  
  
  File: gfortran.info,  Node: GNU Fortran and GCC,  Next: Preprocessing and conditional compilation,  Prev: About GNU Fortran,  Up: Introduction
--- 117,190 ----
  several vendor extensions.  The development goal is to provide the
  following features:
  
!    * Read a user's program, stored in a file and containing instructions
!      written in Fortran 77, Fortran 90, Fortran 95, Fortran 2003 or
!      Fortran 2008.  This file contains "source code".
  
!    * Translate the user's program into instructions a computer can carry
!      out more quickly than it takes to translate the instructions in the
!      first place.  The result after compilation of a program is "machine
!      code", code designed to be efficiently translated and processed by
!      a machine such as your computer.  Humans usually are not as good
!      writing machine code as they are at writing Fortran (or C++, Ada,
!      or Java), because it is easy to make tiny mistakes writing machine
!      code.
  
     * Provide the user with information about the reasons why the
       compiler is unable to create a binary from the source code.
       Usually this will be the case if the source code is flawed.  The
       Fortran 90 standard requires that the compiler can point out
!      mistakes to the user.  An incorrect usage of the language causes an
!      "error message".
  
       The compiler will also attempt to diagnose cases where the user's
!      program contains a correct usage of the language, but instructs the
!      computer to do something questionable.  This kind of diagnostics
!      message is called a "warning message".
  
     * Provide optional information about the translation passes from the
       source code to machine code.  This can help a user of the compiler
       to find the cause of certain bugs which may not be obvious in the
!      source code, but may be more easily found at a lower level compiler
!      output.  It also helps developers to find bugs in the compiler
!      itself.
  
     * Provide information in the generated machine code that can make it
       easier to find bugs in the program (using a debugging tool, called
!      a "debugger", such as the GNU Debugger 'gdb').
  
!    * Locate and gather machine code already generated to perform actions
!      requested by statements in the user's program.  This machine code
!      is organized into "modules" and is located and "linked" to the user
!      program.
  
     The GNU Fortran compiler consists of several components:
  
!    * A version of the 'gcc' command (which also might be installed as
!      the system's 'cc' command) that also understands and accepts
!      Fortran source code.  The 'gcc' command is the "driver" program for
!      all the languages in the GNU Compiler Collection (GCC); With 'gcc',
       you can compile the source code of any language for which a front
       end is available in GCC.
  
!    * The 'gfortran' command itself, which also might be installed as the
!      system's 'f95' command.  'gfortran' is just another driver program,
       but specifically for the Fortran compiler only.  The difference
!      with 'gcc' is that 'gfortran' will automatically link the correct
       libraries to your program.
  
     * A collection of run-time libraries.  These libraries contain the
!      machine code needed to support capabilities of the Fortran language
!      that are not directly provided by the machine code generated by the
!      'gfortran' compilation phase, such as intrinsic functions and
!      subroutines, and routines for interaction with files and the
!      operating system.
  
!    * The Fortran compiler itself, ('f951').  This is the GNU Fortran
       parser and code generator, linked to and interfaced with the GCC
!      backend library.  'f951' "translates" the source code to assembler
       code.  You would typically not use this program directly; instead,
!      the 'gcc' or 'gfortran' driver programs will call it for you.
  
  
  File: gfortran.info,  Node: GNU Fortran and GCC,  Next: Preprocessing and conditional compilation,  Prev: About GNU Fortran,  Up: Introduction
*************** File: gfortran.info,  Node: GNU Fortran
*** 195,230 ****
  GNU Fortran is a part of GCC, the "GNU Compiler Collection".  GCC
  consists of a collection of front ends for various languages, which
  translate the source code into a language-independent form called
! "GENERIC".  This is then processed by a common middle end which
! provides optimization, and then passed to one of a collection of back
! ends which generate code for different computer architectures and
! operating systems.
  
!    Functionally, this is implemented with a driver program (`gcc')
! which provides the command-line interface for the compiler.  It calls
! the relevant compiler front-end program (e.g., `f951' for Fortran) for
! each file in the source code, and then calls the assembler and linker
! as appropriate to produce the compiled output.  In a copy of GCC which
! has been compiled with Fortran language support enabled, `gcc' will
! recognize files with `.f', `.for', `.ftn', `.f90', `.f95', `.f03' and
! `.f08' extensions as Fortran source code, and compile it accordingly.
! A `gfortran' driver program is also provided, which is identical to
! `gcc' except that it automatically links the Fortran runtime libraries
! into the compiled program.
  
!    Source files with `.f', `.for', `.fpp', `.ftn', `.F', `.FOR',
! `.FPP', and `.FTN' extensions are treated as fixed form.  Source files
! with `.f90', `.f95', `.f03', `.f08', `.F90', `.F95', `.F03' and `.F08'
! extensions are treated as free form.  The capitalized versions of
! either form are run through preprocessing.  Source files with the lower
! case `.fpp' extension are also run through preprocessing.
  
     This manual specifically documents the Fortran front end, which
! handles the programming language's syntax and semantics.  The aspects
! of GCC which relate to the optimization passes and the back-end code
  generation are documented in the GCC manual; see *note Introduction:
! (gcc)Top.  The two manuals together provide a complete reference for
! the GNU Fortran compiler.
  
  
  File: gfortran.info,  Node: Preprocessing and conditional compilation,  Next: GNU Fortran and G77,  Prev: GNU Fortran and GCC,  Up: Introduction
--- 195,230 ----
  GNU Fortran is a part of GCC, the "GNU Compiler Collection".  GCC
  consists of a collection of front ends for various languages, which
  translate the source code into a language-independent form called
! "GENERIC". This is then processed by a common middle end which provides
! optimization, and then passed to one of a collection of back ends which
! generate code for different computer architectures and operating
! systems.
  
!    Functionally, this is implemented with a driver program ('gcc') which
! provides the command-line interface for the compiler.  It calls the
! relevant compiler front-end program (e.g., 'f951' for Fortran) for each
! file in the source code, and then calls the assembler and linker as
! appropriate to produce the compiled output.  In a copy of GCC which has
! been compiled with Fortran language support enabled, 'gcc' will
! recognize files with '.f', '.for', '.ftn', '.f90', '.f95', '.f03' and
! '.f08' extensions as Fortran source code, and compile it accordingly.  A
! 'gfortran' driver program is also provided, which is identical to 'gcc'
! except that it automatically links the Fortran runtime libraries into
! the compiled program.
  
!    Source files with '.f', '.for', '.fpp', '.ftn', '.F', '.FOR', '.FPP',
! and '.FTN' extensions are treated as fixed form.  Source files with
! '.f90', '.f95', '.f03', '.f08', '.F90', '.F95', '.F03' and '.F08'
! extensions are treated as free form.  The capitalized versions of either
! form are run through preprocessing.  Source files with the lower case
! '.fpp' extension are also run through preprocessing.
  
     This manual specifically documents the Fortran front end, which
! handles the programming language's syntax and semantics.  The aspects of
! GCC which relate to the optimization passes and the back-end code
  generation are documented in the GCC manual; see *note Introduction:
! (gcc)Top.  The two manuals together provide a complete reference for the
! GNU Fortran compiler.
  
  
  File: gfortran.info,  Node: Preprocessing and conditional compilation,  Next: GNU Fortran and G77,  Prev: GNU Fortran and GCC,  Up: Introduction
*************** File: gfortran.info,  Node: Preprocessin
*** 234,263 ****
  
  Many Fortran compilers including GNU Fortran allow passing the source
  code through a C preprocessor (CPP; sometimes also called the Fortran
! preprocessor, FPP) to allow for conditional compilation.  In the case
! of GNU Fortran, this is the GNU C Preprocessor in the traditional mode.
! On systems with case-preserving file names, the preprocessor is
! automatically invoked if the filename extension is `.F', `.FOR',
! `.FTN', `.fpp', `.FPP', `.F90', `.F95', `.F03' or `.F08'.  To manually
! invoke the preprocessor on any file, use `-cpp', to disable
! preprocessing on files where the preprocessor is run automatically, use
! `-nocpp'.
  
     If a preprocessed file includes another file with the Fortran
! `INCLUDE' statement, the included file is not preprocessed.  To
  preprocess included files, use the equivalent preprocessor statement
! `#include'.
  
!    If GNU Fortran invokes the preprocessor, `__GFORTRAN__' is defined
! and `__GNUC__', `__GNUC_MINOR__' and `__GNUC_PATCHLEVEL__' can be used
! to determine the version of the compiler.  See *note Overview:
! (cpp)Top. for details.
  
     While CPP is the de-facto standard for preprocessing Fortran code,
  Part 3 of the Fortran 95 standard (ISO/IEC 1539-3:1998) defines
  Conditional Compilation, which is not widely used and not directly
  supported by the GNU Fortran compiler.  You can use the program coco to
! preprocess such files (`http://www.daniellnagle.com/coco.html').
  
  
  File: gfortran.info,  Node: GNU Fortran and G77,  Next: Project Status,  Prev: Preprocessing and conditional compilation,  Up: Introduction
--- 234,262 ----
  
  Many Fortran compilers including GNU Fortran allow passing the source
  code through a C preprocessor (CPP; sometimes also called the Fortran
! preprocessor, FPP) to allow for conditional compilation.  In the case of
! GNU Fortran, this is the GNU C Preprocessor in the traditional mode.  On
! systems with case-preserving file names, the preprocessor is
! automatically invoked if the filename extension is '.F', '.FOR', '.FTN',
! '.fpp', '.FPP', '.F90', '.F95', '.F03' or '.F08'.  To manually invoke
! the preprocessor on any file, use '-cpp', to disable preprocessing on
! files where the preprocessor is run automatically, use '-nocpp'.
  
     If a preprocessed file includes another file with the Fortran
! 'INCLUDE' statement, the included file is not preprocessed.  To
  preprocess included files, use the equivalent preprocessor statement
! '#include'.
  
!    If GNU Fortran invokes the preprocessor, '__GFORTRAN__' is defined
! and '__GNUC__', '__GNUC_MINOR__' and '__GNUC_PATCHLEVEL__' can be used
! to determine the version of the compiler.  See *note Overview: (cpp)Top.
! for details.
  
     While CPP is the de-facto standard for preprocessing Fortran code,
  Part 3 of the Fortran 95 standard (ISO/IEC 1539-3:1998) defines
  Conditional Compilation, which is not widely used and not directly
  supported by the GNU Fortran compiler.  You can use the program coco to
! preprocess such files (<http://www.daniellnagle.com/coco.html>).
  
  
  File: gfortran.info,  Node: GNU Fortran and G77,  Next: Project Status,  Prev: Preprocessing and conditional compilation,  Up: Introduction
*************** File: gfortran.info,  Node: GNU Fortran
*** 265,276 ****
  1.4 GNU Fortran and G77
  =======================
  
! The GNU Fortran compiler is the successor to `g77', the Fortran 77
! front end included in GCC prior to version 4.  It is an entirely new
! program that has been designed to provide Fortran 95 support and
! extensibility for future Fortran language standards, as well as
! providing backwards compatibility for Fortran 77 and nearly all of the
! GNU language extensions supported by `g77'.
  
  
  File: gfortran.info,  Node: Project Status,  Next: Standards,  Prev: GNU Fortran and G77,  Up: Introduction
--- 264,275 ----
  1.4 GNU Fortran and G77
  =======================
  
! The GNU Fortran compiler is the successor to 'g77', the Fortran 77 front
! end included in GCC prior to version 4.  It is an entirely new program
! that has been designed to provide Fortran 95 support and extensibility
! for future Fortran language standards, as well as providing backwards
! compatibility for Fortran 77 and nearly all of the GNU language
! extensions supported by 'g77'.
  
  
  File: gfortran.info,  Node: Project Status,  Next: Standards,  Prev: GNU Fortran and G77,  Up: Introduction
*************** File: gfortran.info,  Node: Project Stat
*** 278,293 ****
  1.5 Project Status
  ==================
  
!      As soon as `gfortran' can parse all of the statements correctly,
!      it will be in the "larva" state.  When we generate code, the
!      "puppa" state.  When `gfortran' is done, we'll see if it will be a
       beautiful butterfly, or just a big bug....
  
       -Andy Vaught, April 2000
  
     The start of the GNU Fortran 95 project was announced on the GCC
! homepage in March 18, 2000 (even though Andy had already been working
! on it for a while, of course).
  
     The GNU Fortran compiler is able to compile nearly all
  standard-compliant Fortran 95, Fortran 90, and Fortran 77 programs,
--- 277,292 ----
  1.5 Project Status
  ==================
  
!      As soon as 'gfortran' can parse all of the statements correctly, it
!      will be in the "larva" state.  When we generate code, the "puppa"
!      state.  When 'gfortran' is done, we'll see if it will be a
       beautiful butterfly, or just a big bug....
  
       -Andy Vaught, April 2000
  
     The start of the GNU Fortran 95 project was announced on the GCC
! homepage in March 18, 2000 (even though Andy had already been working on
! it for a while, of course).
  
     The GNU Fortran compiler is able to compile nearly all
  standard-compliant Fortran 95, Fortran 90, and Fortran 77 programs,
*************** used on real-world programs.  In particu
*** 296,304 ****
  include OpenMP, Cray-style pointers, some old vendor extensions, and
  several Fortran 2003 and Fortran 2008 features, including TR 15581.
  However, it is still under development and has a few remaining rough
! edges.  There also is initial support for OpenACC.  Note that this is
! an experimental feature, incomplete, and subject to change in future
! versions of GCC.  See `https://gcc.gnu.org/wiki/OpenACC' for more
  information.
  
     At present, the GNU Fortran compiler passes the NIST Fortran 77 Test
--- 295,303 ----
  include OpenMP, Cray-style pointers, some old vendor extensions, and
  several Fortran 2003 and Fortran 2008 features, including TR 15581.
  However, it is still under development and has a few remaining rough
! edges.  There also is initial support for OpenACC. Note that this is an
! experimental feature, incomplete, and subject to change in future
! versions of GCC. See <https://gcc.gnu.org/wiki/OpenACC> for more
  information.
  
     At present, the GNU Fortran compiler passes the NIST Fortran 77 Test
*************** compile a number of large real-world pro
*** 313,324 ****
  and HIRLAM weather forecasting code (http://hirlam.org/) and the Tonto
  quantum chemistry package
  (http://physical-chemistry.scb.uwa.edu.au/tonto/wiki/index.php/Main_Page);
! see `https://gcc.gnu.org/wiki/GfortranApps' for an extended list.
  
     Among other things, the GNU Fortran compiler is intended as a
  replacement for G77.  At this point, nearly all programs that could be
! compiled with G77 can be compiled with GNU Fortran, although there are
! a few minor known regressions.
  
     The primary work remaining to be done on GNU Fortran falls into three
  categories: bug fixing (primarily regarding the treatment of invalid
--- 312,323 ----
  and HIRLAM weather forecasting code (http://hirlam.org/) and the Tonto
  quantum chemistry package
  (http://physical-chemistry.scb.uwa.edu.au/tonto/wiki/index.php/Main_Page);
! see <https://gcc.gnu.org/wiki/GfortranApps> for an extended list.
  
     Among other things, the GNU Fortran compiler is intended as a
  replacement for G77.  At this point, nearly all programs that could be
! compiled with G77 can be compiled with GNU Fortran, although there are a
! few minor known regressions.
  
     The primary work remaining to be done on GNU Fortran falls into three
  categories: bug fixing (primarily regarding the treatment of invalid
*************** File: gfortran.info,  Node: Standards,
*** 337,363 ****
  
  * Varying Length Character Strings::
  
!    The GNU Fortran compiler implements ISO/IEC 1539:1997 (Fortran 95).
! As such, it can also compile essentially all standard-compliant Fortran
! 90 and Fortran 77 programs.   It also supports the ISO/IEC TR-15581
  enhancements to allocatable arrays.
  
     GNU Fortran also have a partial support for ISO/IEC 1539-1:2004
  (Fortran 2003), ISO/IEC 1539-1:2010 (Fortran 2008), the Technical
! Specification `Further Interoperability of Fortran with C' (ISO/IEC TS
  29113:2012).  Full support of those standards and future Fortran
! standards is planned.  The current status of the support is can be
! found in the *note Fortran 2003 status::, *note Fortran 2008 status::,
! *note TS 29113 status:: and *note TS 18508 status:: sections of the
  documentation.
  
     Additionally, the GNU Fortran compilers supports the OpenMP
  specification (version 4.0,
! `http://openmp.org/wp/openmp-specifications/').  There also is initial
  support for the OpenACC specification (targeting version 2.0,
! `http://www.openacc.org/').  Note that this is an experimental feature,
! incomplete, and subject to change in future versions of GCC.  See
! `https://gcc.gnu.org/wiki/OpenACC' for more information.
  
  
  File: gfortran.info,  Node: Varying Length Character Strings,  Up: Standards
--- 336,362 ----
  
  * Varying Length Character Strings::
  
! The GNU Fortran compiler implements ISO/IEC 1539:1997 (Fortran 95).  As
! such, it can also compile essentially all standard-compliant Fortran 90
! and Fortran 77 programs.  It also supports the ISO/IEC TR-15581
  enhancements to allocatable arrays.
  
     GNU Fortran also have a partial support for ISO/IEC 1539-1:2004
  (Fortran 2003), ISO/IEC 1539-1:2010 (Fortran 2008), the Technical
! Specification 'Further Interoperability of Fortran with C' (ISO/IEC TS
  29113:2012).  Full support of those standards and future Fortran
! standards is planned.  The current status of the support is can be found
! in the *note Fortran 2003 status::, *note Fortran 2008 status::, *note
! TS 29113 status:: and *note TS 18508 status:: sections of the
  documentation.
  
     Additionally, the GNU Fortran compilers supports the OpenMP
  specification (version 4.0,
! <http://openmp.org/wp/openmp-specifications/>).  There also is initial
  support for the OpenACC specification (targeting version 2.0,
! <http://www.openacc.org/>).  Note that this is an experimental feature,
! incomplete, and subject to change in future versions of GCC. See
! <https://gcc.gnu.org/wiki/OpenACC> for more information.
  
  
  File: gfortran.info,  Node: Varying Length Character Strings,  Up: Standards
*************** The Fortran 95 standard specifies in Par
*** 369,381 ****
  varying length character strings.  While GNU Fortran currently does not
  support such strings directly, there exist two Fortran implementations
  for them, which work with GNU Fortran.  They can be found at
! `http://www.fortran.com/iso_varying_string.f95' and at
! `ftp://ftp.nag.co.uk/sc22wg5/ISO_VARYING_STRING/'.
  
     Deferred-length character strings of Fortran 2003 supports part of
! the features of `ISO_VARYING_STRING' and should be considered as
! replacement. (Namely, allocatable or pointers of the type
! `character(len=:)'.)
  
  
  File: gfortran.info,  Node: Invoking GNU Fortran,  Next: Runtime,  Prev: Introduction,  Up: Top
--- 368,380 ----
  varying length character strings.  While GNU Fortran currently does not
  support such strings directly, there exist two Fortran implementations
  for them, which work with GNU Fortran.  They can be found at
! <http://www.fortran.com/iso_varying_string.f95> and at
! <ftp://ftp.nag.co.uk/sc22wg5/ISO_VARYING_STRING/>.
  
     Deferred-length character strings of Fortran 2003 supports part of
! the features of 'ISO_VARYING_STRING' and should be considered as
! replacement.  (Namely, allocatable or pointers of the type
! 'character(len=:)'.)
  
  
  File: gfortran.info,  Node: Invoking GNU Fortran,  Next: Runtime,  Prev: Introduction,  Up: Top
*************** File: gfortran.info,  Node: Invoking GNU
*** 383,407 ****
  2 GNU Fortran Command Options
  *****************************
  
! The `gfortran' command supports all the options supported by the `gcc'
  command.  Only options specific to GNU Fortran are documented here.
  
     *Note GCC Command Options: (gcc)Invoking GCC, for information on the
! non-Fortran-specific aspects of the `gcc' command (and, therefore, the
! `gfortran' command).
  
!    All GCC and GNU Fortran options are accepted both by `gfortran' and
! by `gcc' (as well as any other drivers built at the same time, such as
! `g++'), since adding GNU Fortran to the GCC distribution enables
  acceptance of GNU Fortran options by all of the relevant drivers.
  
!    In some cases, options have positive and negative forms; the
! negative form of `-ffoo' would be `-fno-foo'.  This manual documents
! only one of these two forms, whichever one is not the default.
  
  * Menu:
  
! * Option Summary::      Brief list of all `gfortran' options,
                          without explanations.
  * Fortran Dialect Options::  Controlling the variant of Fortran language
                               compiled.
--- 382,406 ----
  2 GNU Fortran Command Options
  *****************************
  
! The 'gfortran' command supports all the options supported by the 'gcc'
  command.  Only options specific to GNU Fortran are documented here.
  
     *Note GCC Command Options: (gcc)Invoking GCC, for information on the
! non-Fortran-specific aspects of the 'gcc' command (and, therefore, the
! 'gfortran' command).
  
!    All GCC and GNU Fortran options are accepted both by 'gfortran' and
! by 'gcc' (as well as any other drivers built at the same time, such as
! 'g++'), since adding GNU Fortran to the GCC distribution enables
  acceptance of GNU Fortran options by all of the relevant drivers.
  
!    In some cases, options have positive and negative forms; the negative
! form of '-ffoo' would be '-fno-foo'.  This manual documents only one of
! these two forms, whichever one is not the default.
  
  * Menu:
  
! * Option Summary::      Brief list of all 'gfortran' options,
                          without explanations.
  * Fortran Dialect Options::  Controlling the variant of Fortran language
                               compiled.
*************** only one of these two forms, whichever o
*** 413,419 ****
  * Runtime Options::     Influencing runtime behavior
  * Code Gen Options::    Specifying conventions for function calls, data layout
                          and register usage.
! * Environment Variables:: Environment variables that affect `gfortran'.
  
  
  File: gfortran.info,  Node: Option Summary,  Next: Fortran Dialect Options,  Up: Invoking GNU Fortran
--- 412,418 ----
  * Runtime Options::     Influencing runtime behavior
  * Code Gen Options::    Specifying conventions for function calls, data layout
                          and register usage.
! * Environment Variables:: Environment variables that affect 'gfortran'.
  
  
  File: gfortran.info,  Node: Option Summary,  Next: Fortran Dialect Options,  Up: Invoking GNU Fortran
*************** File: gfortran.info,  Node: Option Summa
*** 421,428 ****
  2.1 Option summary
  ==================
  
! Here is a summary of all the options specific to GNU Fortran, grouped
! by type.  Explanations are in the following sections.
  
  _Fortran Language Options_
       *Note Options controlling Fortran dialect: Fortran Dialect Options.
--- 420,427 ----
  2.1 Option summary
  ==================
  
! Here is a summary of all the options specific to GNU Fortran, grouped by
! type.  Explanations are in the following sections.
  
  _Fortran Language Options_
       *Note Options controlling Fortran dialect: Fortran Dialect Options.
*************** _Fortran Language Options_
*** 436,441 ****
--- 435,441 ----
            -fopenacc -fopenmp -freal-4-real-10 -freal-4-real-16 -freal-4-real-8
            -freal-8-real-10 -freal-8-real-16 -freal-8-real-4 -std=STD
  
+ 
  _Preprocessing Options_
       *Note Enable and customize preprocessing: Preprocessing Options.
            -A-QUESTION[=ANSWER]
*************** _Preprocessing Options_
*** 447,455 ****
            -nostdinc
            -undef
  
  _Error and Warning Options_
!      *Note Options to request or suppress errors and warnings: Error
!      and Warning Options.
            -Waliasing -Wall -Wampersand -Warray-bounds
            -Wc-binding-type -Wcharacter-truncation
            -Wconversion -Wfunction-elimination -Wimplicit-interface
--- 447,456 ----
            -nostdinc
            -undef
  
+ 
  _Error and Warning Options_
!      *Note Options to request or suppress errors and warnings: Error and
!      Warning Options.
            -Waliasing -Wall -Wampersand -Warray-bounds
            -Wc-binding-type -Wcharacter-truncation
            -Wconversion -Wfunction-elimination -Wimplicit-interface
*************** _Error and Warning Options_
*** 458,469 ****
--- 459,472 ----
            -Wsurprising -Wunderflow -Wunused-parameter -Wrealloc-lhs -Wrealloc-lhs-all
            -Wtarget-lifetime -fmax-errors=N -fsyntax-only -pedantic -pedantic-errors
  
+ 
  _Debugging Options_
       *Note Options for debugging your program or GNU Fortran: Debugging
       Options.
            -fbacktrace -fdump-fortran-optimized -fdump-fortran-original
            -fdump-parse-tree -ffpe-trap=LIST -ffpe-summary=LIST
  
+ 
  _Directory Options_
       *Note Options for directory search: Directory Options.
            -IDIR  -JDIR -fintrinsic-modules-path DIR
*************** _Runtime Options_
*** 477,482 ****
--- 480,486 ----
            -fconvert=CONVERSION -fmax-subrecord-length=LENGTH
            -frecord-marker=LENGTH -fsign-zero
  
+ 
  _Code Generation Options_
       *Note Options for code generation conventions: Code Gen Options.
            -faggressive-function-elimination -fblas-matmul-limit=N
*************** File: gfortran.info,  Node: Fortran Dial
*** 504,706 ****
  The following options control the details of the Fortran dialect
  accepted by the compiler:
  
! `-ffree-form'
! `-ffixed-form'
       Specify the layout used by the source file.  The free form layout
       was introduced in Fortran 90.  Fixed form was traditionally used in
       older Fortran programs.  When neither option is specified, the
       source form is determined by the file extension.
  
! `-fall-intrinsics'
       This option causes all intrinsic procedures (including the
       GNU-specific extensions) to be accepted.  This can be useful with
!      `-std=f95' to force standard-compliance but get access to the full
!      range of intrinsics available with `gfortran'.  As a consequence,
!      `-Wintrinsics-std' will be ignored and no user-defined procedure
       with the same name as any intrinsic will be called except when it
!      is explicitly declared `EXTERNAL'.
  
! `-fd-lines-as-code'
! `-fd-lines-as-comments'
!      Enable special treatment for lines beginning with `d' or `D' in
!      fixed form sources.  If the `-fd-lines-as-code' option is given
       they are treated as if the first column contained a blank.  If the
!      `-fd-lines-as-comments' option is given, they are treated as
       comment lines.
  
! `-fdec'
!      DEC compatibility mode. Enables extensions and other features that
!      mimic the default behavior of older compilers (such as DEC).
!      These features are non-standard and should be avoided at all costs.
!      For details on GNU Fortran's implementation of these extensions
!      see the full documentation.
  
!      Other flags enabled by this switch are: `-fdollar-ok'
!      `-fcray-pointer' `-fdec-structure'
  
! `-fdec-structure'
!      Enable DEC `STRUCTURE' and `RECORD' as well as `UNION', `MAP', and
!      dot ('.') as a member separator (in addition to '%'). This is
!      provided for compatibility only; Fortran 90 derived types should
!      be used instead where possible.
  
! `-fdollar-ok'
!      Allow `$' as a valid non-first character in a symbol name. Symbols
!      that start with `$' are rejected since it is unclear which rules to
       apply to implicit typing as different vendors implement different
!      rules.  Using `$' in `IMPLICIT' statements is also rejected.
  
! `-fbackslash'
       Change the interpretation of backslashes in string literals from a
!      single backslash character to "C-style" escape characters. The
!      following combinations are expanded `\a', `\b', `\f', `\n', `\r',
!      `\t', `\v', `\\', and `\0' to the ASCII characters alert,
       backspace, form feed, newline, carriage return, horizontal tab,
       vertical tab, backslash, and NUL, respectively.  Additionally,
!      `\x'NN, `\u'NNNN and `\U'NNNNNNNN (where each N is a hexadecimal
       digit) are translated into the Unicode characters corresponding to
!      the specified code points. All other combinations of a character
       preceded by \ are unexpanded.
  
! `-fmodule-private'
!      Set the default accessibility of module entities to `PRIVATE'.
       Use-associated entities will not be accessible unless they are
!      explicitly declared as `PUBLIC'.
  
! `-ffixed-line-length-N'
       Set column after which characters are ignored in typical fixed-form
       lines in the source file, and through which spaces are assumed (as
       if padded to that length) after the ends of short fixed-form lines.
  
       Popular values for N include 72 (the standard and the default), 80
       (card image), and 132 (corresponding to "extended-source" options
!      in some popular compilers).  N may also be `none', meaning that
!      the entire line is meaningful and that continued character
!      constants never have implicit spaces appended to them to fill out
!      the line.  `-ffixed-line-length-0' means the same thing as
!      `-ffixed-line-length-none'.
  
! `-ffree-line-length-N'
       Set column after which characters are ignored in typical free-form
!      lines in the source file. The default value is 132.  N may be
!      `none', meaning that the entire line is meaningful.
!      `-ffree-line-length-0' means the same thing as
!      `-ffree-line-length-none'.
  
! `-fmax-identifier-length=N'
!      Specify the maximum allowed identifier length. Typical values are
       31 (Fortran 95) and 63 (Fortran 2003 and Fortran 2008).
  
! `-fimplicit-none'
       Specify that no implicit typing is allowed, unless overridden by
!      explicit `IMPLICIT' statements.  This is the equivalent of adding
!      `implicit none' to the start of every procedure.
  
! `-fcray-pointer'
       Enable the Cray pointer extension, which provides C-like pointer
       functionality.
  
! `-fopenacc'
!      Enable the OpenACC extensions.  This includes OpenACC `!$acc'
!      directives in free form and `c$acc', `*$acc' and `!$acc'
!      directives in fixed form, `!$' conditional compilation sentinels
!      in free form and `c$', `*$' and `!$' sentinels in fixed form, and
!      when linking arranges for the OpenACC runtime library to be linked
!      in.
  
       Note that this is an experimental feature, incomplete, and subject
!      to change in future versions of GCC.  See
!      `https://gcc.gnu.org/wiki/OpenACC' for more information.
  
! `-fopenmp'
!      Enable the OpenMP extensions.  This includes OpenMP `!$omp'
!      directives in free form and `c$omp', `*$omp' and `!$omp'
!      directives in fixed form, `!$' conditional compilation sentinels
!      in free form and `c$', `*$' and `!$' sentinels in fixed form, and
!      when linking arranges for the OpenMP runtime library to be linked
!      in.  The option `-fopenmp' implies `-frecursive'.
  
! `-fno-range-check'
       Disable range checking on results of simplification of constant
       expressions during compilation.  For example, GNU Fortran will give
!      an error at compile time when simplifying `a = 1. / 0'.  With this
!      option, no error will be given and `a' will be assigned the value
!      `+Infinity'.  If an expression evaluates to a value outside of the
!      relevant range of [`-HUGE()':`HUGE()'], then the expression will
!      be replaced by `-Inf' or `+Inf' as appropriate.  Similarly, `DATA
!      i/Z'FFFFFFFF'/' will result in an integer overflow on most
!      systems, but with `-fno-range-check' the value will "wrap around"
!      and `i' will be initialized to -1 instead.
  
! `-fdefault-integer-8'
       Set the default integer and logical types to an 8 byte wide type.
!      This option also affects the kind of integer constants like `42'.
!      Unlike `-finteger-4-integer-8', it does not promote variables with
       explicit kind declaration.
  
! `-fdefault-real-8'
!      Set the default real type to an 8 byte wide type. This option also
!      affects the kind of non-double real constants like `1.0', and does
!      promote the default width of `DOUBLE PRECISION' to 16 bytes if
!      possible, unless `-fdefault-double-8' is given, too. Unlike
!      `-freal-4-real-8', it does not promote variables with explicit
!      kind declaration.
  
! `-fdefault-double-8'
!      Set the `DOUBLE PRECISION' type to an 8 byte wide type.  Do
!      nothing if this is already the default.  If `-fdefault-real-8' is
!      given, `DOUBLE PRECISION' would instead be promoted to 16 bytes if
!      possible, and `-fdefault-double-8' can be used to prevent this.
!      The kind of real constants like `1.d0' will not be changed by
!      `-fdefault-real-8' though, so also `-fdefault-double-8' does not
       affect it.
  
! `-finteger-4-integer-8'
!      Promote all `INTEGER(KIND=4)' entities to an `INTEGER(KIND=8)'
!      entities.  If `KIND=8' is unavailable, then an error will be
       issued.  This option should be used with care and may not be
       suitable for your codes.  Areas of possible concern include calls
!      to external procedures, alignment in `EQUIVALENCE' and/or
!      `COMMON', generic interfaces, BOZ literal constant conversion, and
!      I/O.  Inspection of the intermediate representation of the
!      translated Fortran code, produced by `-fdump-tree-original', is
!      suggested.
  
! `-freal-4-real-8'
! `-freal-4-real-10'
! `-freal-4-real-16'
! `-freal-8-real-4'
! `-freal-8-real-10'
! `-freal-8-real-16'
!      Promote all `REAL(KIND=M)' entities to `REAL(KIND=N)' entities.
!      If `REAL(KIND=N)' is unavailable, then an error will be issued.
!      All other real kind types are unaffected by this option.  These
!      options should be used with care and may not be suitable for your
!      codes.  Areas of possible concern include calls to external
!      procedures, alignment in `EQUIVALENCE' and/or `COMMON', generic
!      interfaces, BOZ literal constant conversion, and I/O.  Inspection
!      of the intermediate representation of the translated Fortran code,
!      produced by `-fdump-tree-original', is suggested.
  
! `-std=STD'
       Specify the standard to which the program is expected to conform,
!      which may be one of `f95', `f2003', `f2008', `gnu', or `legacy'.
!      The default value for STD is `gnu', which specifies a superset of
       the Fortran 95 standard that includes all of the extensions
       supported by GNU Fortran, although warnings will be given for
       obsolete extensions not recommended for use in new code.  The
!      `legacy' value is equivalent but without the warnings for obsolete
       extensions, and may be useful for old non-standard programs.  The
!      `f95', `f2003' and `f2008' values specify strict conformance to
!      the Fortran 95, Fortran 2003 and Fortran 2008 standards,
!      respectively; errors are given for all extensions beyond the
!      relevant language standard, and warnings are given for the Fortran
!      77 features that are permitted but obsolescent in later standards.
!      `-std=f2008ts' allows the Fortran 2008 standard including the
!      additions of the Technical Specification (TS) 29113 on Further
!      Interoperability of Fortran with C and TS 18508 on Additional
!      Parallel Features in Fortran.
! 
  
  
  File: gfortran.info,  Node: Preprocessing Options,  Next: Error and Warning Options,  Prev: Fortran Dialect Options,  Up: Invoking GNU Fortran
--- 508,707 ----
  The following options control the details of the Fortran dialect
  accepted by the compiler:
  
! '-ffree-form'
! '-ffixed-form'
       Specify the layout used by the source file.  The free form layout
       was introduced in Fortran 90.  Fixed form was traditionally used in
       older Fortran programs.  When neither option is specified, the
       source form is determined by the file extension.
  
! '-fall-intrinsics'
       This option causes all intrinsic procedures (including the
       GNU-specific extensions) to be accepted.  This can be useful with
!      '-std=f95' to force standard-compliance but get access to the full
!      range of intrinsics available with 'gfortran'.  As a consequence,
!      '-Wintrinsics-std' will be ignored and no user-defined procedure
       with the same name as any intrinsic will be called except when it
!      is explicitly declared 'EXTERNAL'.
  
! '-fd-lines-as-code'
! '-fd-lines-as-comments'
!      Enable special treatment for lines beginning with 'd' or 'D' in
!      fixed form sources.  If the '-fd-lines-as-code' option is given
       they are treated as if the first column contained a blank.  If the
!      '-fd-lines-as-comments' option is given, they are treated as
       comment lines.
  
! '-fdec'
!      DEC compatibility mode.  Enables extensions and other features that
!      mimic the default behavior of older compilers (such as DEC). These
!      features are non-standard and should be avoided at all costs.  For
!      details on GNU Fortran's implementation of these extensions see the
!      full documentation.
  
!      Other flags enabled by this switch are: '-fdollar-ok'
!      '-fcray-pointer' '-fdec-structure'
  
! '-fdec-structure'
!      Enable DEC 'STRUCTURE' and 'RECORD' as well as 'UNION', 'MAP', and
!      dot ('.')  as a member separator (in addition to '%').  This is
!      provided for compatibility only; Fortran 90 derived types should be
!      used instead where possible.
  
! '-fdollar-ok'
!      Allow '$' as a valid non-first character in a symbol name.  Symbols
!      that start with '$' are rejected since it is unclear which rules to
       apply to implicit typing as different vendors implement different
!      rules.  Using '$' in 'IMPLICIT' statements is also rejected.
  
! '-fbackslash'
       Change the interpretation of backslashes in string literals from a
!      single backslash character to "C-style" escape characters.  The
!      following combinations are expanded '\a', '\b', '\f', '\n', '\r',
!      '\t', '\v', '\\', and '\0' to the ASCII characters alert,
       backspace, form feed, newline, carriage return, horizontal tab,
       vertical tab, backslash, and NUL, respectively.  Additionally,
!      '\x'NN, '\u'NNNN and '\U'NNNNNNNN (where each N is a hexadecimal
       digit) are translated into the Unicode characters corresponding to
!      the specified code points.  All other combinations of a character
       preceded by \ are unexpanded.
  
! '-fmodule-private'
!      Set the default accessibility of module entities to 'PRIVATE'.
       Use-associated entities will not be accessible unless they are
!      explicitly declared as 'PUBLIC'.
  
! '-ffixed-line-length-N'
       Set column after which characters are ignored in typical fixed-form
       lines in the source file, and through which spaces are assumed (as
       if padded to that length) after the ends of short fixed-form lines.
  
       Popular values for N include 72 (the standard and the default), 80
       (card image), and 132 (corresponding to "extended-source" options
!      in some popular compilers).  N may also be 'none', meaning that the
!      entire line is meaningful and that continued character constants
!      never have implicit spaces appended to them to fill out the line.
!      '-ffixed-line-length-0' means the same thing as
!      '-ffixed-line-length-none'.
  
! '-ffree-line-length-N'
       Set column after which characters are ignored in typical free-form
!      lines in the source file.  The default value is 132.  N may be
!      'none', meaning that the entire line is meaningful.
!      '-ffree-line-length-0' means the same thing as
!      '-ffree-line-length-none'.
  
! '-fmax-identifier-length=N'
!      Specify the maximum allowed identifier length.  Typical values are
       31 (Fortran 95) and 63 (Fortran 2003 and Fortran 2008).
  
! '-fimplicit-none'
       Specify that no implicit typing is allowed, unless overridden by
!      explicit 'IMPLICIT' statements.  This is the equivalent of adding
!      'implicit none' to the start of every procedure.
  
! '-fcray-pointer'
       Enable the Cray pointer extension, which provides C-like pointer
       functionality.
  
! '-fopenacc'
!      Enable the OpenACC extensions.  This includes OpenACC '!$acc'
!      directives in free form and 'c$acc', '*$acc' and '!$acc' directives
!      in fixed form, '!$' conditional compilation sentinels in free form
!      and 'c$', '*$' and '!$' sentinels in fixed form, and when linking
!      arranges for the OpenACC runtime library to be linked in.
  
       Note that this is an experimental feature, incomplete, and subject
!      to change in future versions of GCC. See
!      <https://gcc.gnu.org/wiki/OpenACC> for more information.
  
! '-fopenmp'
!      Enable the OpenMP extensions.  This includes OpenMP '!$omp'
!      directives in free form and 'c$omp', '*$omp' and '!$omp' directives
!      in fixed form, '!$' conditional compilation sentinels in free form
!      and 'c$', '*$' and '!$' sentinels in fixed form, and when linking
!      arranges for the OpenMP runtime library to be linked in.  The
!      option '-fopenmp' implies '-frecursive'.
  
! '-fno-range-check'
       Disable range checking on results of simplification of constant
       expressions during compilation.  For example, GNU Fortran will give
!      an error at compile time when simplifying 'a = 1. / 0'.  With this
!      option, no error will be given and 'a' will be assigned the value
!      '+Infinity'.  If an expression evaluates to a value outside of the
!      relevant range of ['-HUGE()':'HUGE()'], then the expression will be
!      replaced by '-Inf' or '+Inf' as appropriate.  Similarly, 'DATA
!      i/Z'FFFFFFFF'/' will result in an integer overflow on most systems,
!      but with '-fno-range-check' the value will "wrap around" and 'i'
!      will be initialized to -1 instead.
  
! '-fdefault-integer-8'
       Set the default integer and logical types to an 8 byte wide type.
!      This option also affects the kind of integer constants like '42'.
!      Unlike '-finteger-4-integer-8', it does not promote variables with
       explicit kind declaration.
  
! '-fdefault-real-8'
!      Set the default real type to an 8 byte wide type.  This option also
!      affects the kind of non-double real constants like '1.0', and does
!      promote the default width of 'DOUBLE PRECISION' to 16 bytes if
!      possible, unless '-fdefault-double-8' is given, too.  Unlike
!      '-freal-4-real-8', it does not promote variables with explicit kind
!      declaration.
  
! '-fdefault-double-8'
!      Set the 'DOUBLE PRECISION' type to an 8 byte wide type.  Do nothing
!      if this is already the default.  If '-fdefault-real-8' is given,
!      'DOUBLE PRECISION' would instead be promoted to 16 bytes if
!      possible, and '-fdefault-double-8' can be used to prevent this.
!      The kind of real constants like '1.d0' will not be changed by
!      '-fdefault-real-8' though, so also '-fdefault-double-8' does not
       affect it.
  
! '-finteger-4-integer-8'
!      Promote all 'INTEGER(KIND=4)' entities to an 'INTEGER(KIND=8)'
!      entities.  If 'KIND=8' is unavailable, then an error will be
       issued.  This option should be used with care and may not be
       suitable for your codes.  Areas of possible concern include calls
!      to external procedures, alignment in 'EQUIVALENCE' and/or 'COMMON',
!      generic interfaces, BOZ literal constant conversion, and I/O.
!      Inspection of the intermediate representation of the translated
!      Fortran code, produced by '-fdump-tree-original', is suggested.
  
! '-freal-4-real-8'
! '-freal-4-real-10'
! '-freal-4-real-16'
! '-freal-8-real-4'
! '-freal-8-real-10'
! '-freal-8-real-16'
!      Promote all 'REAL(KIND=M)' entities to 'REAL(KIND=N)' entities.  If
!      'REAL(KIND=N)' is unavailable, then an error will be issued.  All
!      other real kind types are unaffected by this option.  These options
!      should be used with care and may not be suitable for your codes.
!      Areas of possible concern include calls to external procedures,
!      alignment in 'EQUIVALENCE' and/or 'COMMON', generic interfaces, BOZ
!      literal constant conversion, and I/O. Inspection of the
!      intermediate representation of the translated Fortran code,
!      produced by '-fdump-tree-original', is suggested.
  
! '-std=STD'
       Specify the standard to which the program is expected to conform,
!      which may be one of 'f95', 'f2003', 'f2008', 'gnu', or 'legacy'.
!      The default value for STD is 'gnu', which specifies a superset of
       the Fortran 95 standard that includes all of the extensions
       supported by GNU Fortran, although warnings will be given for
       obsolete extensions not recommended for use in new code.  The
!      'legacy' value is equivalent but without the warnings for obsolete
       extensions, and may be useful for old non-standard programs.  The
!      'f95', 'f2003' and 'f2008' values specify strict conformance to the
!      Fortran 95, Fortran 2003 and Fortran 2008 standards, respectively;
!      errors are given for all extensions beyond the relevant language
!      standard, and warnings are given for the Fortran 77 features that
!      are permitted but obsolescent in later standards.  '-std=f2008ts'
!      allows the Fortran 2008 standard including the additions of the
!      Technical Specification (TS) 29113 on Further Interoperability of
!      Fortran with C and TS 18508 on Additional Parallel Features in
!      Fortran.
  
  
  File: gfortran.info,  Node: Preprocessing Options,  Next: Error and Warning Options,  Prev: Fortran Dialect Options,  Up: Invoking GNU Fortran
*************** File: gfortran.info,  Node: Preprocessin
*** 708,865 ****
  2.3 Enable and customize preprocessing
  ======================================
  
! Preprocessor related options. See section *note Preprocessing and
! conditional compilation:: for more detailed information on
! preprocessing in `gfortran'.
  
! `-cpp'
! `-nocpp'
!      Enable preprocessing. The preprocessor is automatically invoked if
!      the file extension is `.fpp', `.FPP',  `.F', `.FOR', `.FTN',
!      `.F90', `.F95', `.F03' or `.F08'. Use this option to manually
!      enable preprocessing of any kind of Fortran file.
  
       To disable preprocessing of files with any of the above listed
!      extensions, use the negative form: `-nocpp'.
  
!      The preprocessor is run in traditional mode. Any restrictions of
       the file-format, especially the limits on line length, apply for
       preprocessed output as well, so it might be advisable to use the
!      `-ffree-line-length-none' or `-ffixed-line-length-none' options.
  
! `-dM'
!      Instead of the normal output, generate a list of `'#define''
       directives for all the macros defined during the execution of the
!      preprocessor, including predefined macros. This gives you a way of
       finding out what is predefined in your version of the preprocessor.
!      Assuming you have no file `foo.f90', the command
              touch foo.f90; gfortran -cpp -E -dM foo.f90
       will show all the predefined macros.
  
! `-dD'
!      Like `-dM' except in two respects: it does not include the
!      predefined macros, and it outputs both the `#define' directives
!      and the result of preprocessing. Both kinds of output go to the
       standard output file.
  
! `-dN'
!      Like `-dD', but emit only the macro names, not their expansions.
  
! `-dU'
!      Like `dD' except that only macros that are expanded, or whose
       definedness is tested in preprocessor directives, are output; the
       output is delayed until the use or test of the macro; and
!      `'#undef'' directives are also output for macros tested but
       undefined at the time.
  
! `-dI'
!      Output `'#include'' directives in addition to the result of
       preprocessing.
  
! `-fworking-directory'
       Enable generation of linemarkers in the preprocessor output that
       will let the compiler know the current working directory at the
!      time of preprocessing. When this option is enabled, the
       preprocessor will emit, after the initial linemarker, a second
       linemarker with the current working directory followed by two
!      slashes. GCC will use this directory, when it is present in the
!      preprocessed input, as the directory emitted as the current
!      working directory in some debugging information formats.  This
!      option is implicitly enabled if debugging information is enabled,
!      but this can be inhibited with the negated form
!      `-fno-working-directory'. If the `-P' flag is present in the
!      command line, this option has no effect, since no `#line'
!      directives are emitted whatsoever.
  
! `-idirafter DIR'
       Search DIR for include files, but do it after all directories
!      specified with `-I' and the standard system directories have been
!      exhausted. DIR is treated as a system include directory.  If dir
!      begins with `=', then the `=' will be replaced by the sysroot
!      prefix; see `--sysroot' and `-isysroot'.
  
! `-imultilib DIR'
       Use DIR as a subdirectory of the directory containing
       target-specific C++ headers.
  
! `-iprefix PREFIX'
!      Specify PREFIX as the prefix for subsequent `-iwithprefix'
!      options. If the PREFIX represents a directory, you should include
!      the final `'/''.
  
! `-isysroot DIR'
!      This option is like the `--sysroot' option, but applies only to
!      header files. See the `--sysroot' option for more information.
  
! `-iquote DIR'
!      Search DIR only for header files requested with `#include "file"';
!      they are not searched for `#include <file>', before all directories
!      specified by `-I' and before the standard system directories. If
!      DIR begins with `=', then the `=' will be replaced by the sysroot
!      prefix; see `--sysroot' and `-isysroot'.
  
! `-isystem DIR'
       Search DIR for header files, after all directories specified by
!      `-I' but before the standard system directories. Mark it as a
       system directory, so that it gets the same special treatment as is
!      applied to the standard system directories. If DIR begins with
!      `=', then the `=' will be replaced by the sysroot prefix; see
!      `--sysroot' and `-isysroot'.
  
! `-nostdinc'
       Do not search the standard system directories for header files.
!      Only the directories you have specified with `-I' options (and the
       directory of the current file, if appropriate) are searched.
  
! `-undef'
       Do not predefine any system-specific or GCC-specific macros.  The
       standard predefined macros remain defined.
  
! `-APREDICATE=ANSWER'
       Make an assertion with the predicate PREDICATE and answer ANSWER.
       This form is preferred to the older form -A predicate(answer),
       which is still supported, because it does not use shell special
       characters.
  
! `-A-PREDICATE=ANSWER'
       Cancel an assertion with the predicate PREDICATE and answer ANSWER.
  
! `-C'
!      Do not discard comments. All comments are passed through to the
!      output file, except for comments in processed directives, which
!      are deleted along with the directive.
  
!      You should be prepared for side effects when using `-C'; it causes
       the preprocessor to treat comments as tokens in their own right.
       For example, comments appearing at the start of what would be a
       directive line have the effect of turning that line into an
       ordinary source line, since the first token on the line is no
!      longer a `'#''.
  
!      Warning: this currently handles C-Style comments only. The
       preprocessor does not yet recognize Fortran-style comments.
  
! `-CC'
!      Do not discard comments, including during macro expansion. This is
!      like `-C', except that comments contained within macros are also
       passed through to the output file where the macro is expanded.
  
!      In addition to the side-effects of the `-C' option, the `-CC'
!      option causes all C++-style comments inside a macro to be
!      converted to C-style comments. This is to prevent later use of
!      that macro from inadvertently commenting out the remainder of the
!      source line. The `-CC' option is generally used to support lint
!      comments.
  
!      Warning: this currently handles C- and C++-Style comments only. The
!      preprocessor does not yet recognize Fortran-style comments.
  
! `-DNAME'
!      Predefine name as a macro, with definition `1'.
  
! `-DNAME=DEFINITION'
       The contents of DEFINITION are tokenized and processed as if they
!      appeared during translation phase three in a `'#define'' directive.
       In particular, the definition will be truncated by embedded newline
       characters.
  
--- 709,864 ----
  2.3 Enable and customize preprocessing
  ======================================
  
! Preprocessor related options.  See section *note Preprocessing and
! conditional compilation:: for more detailed information on preprocessing
! in 'gfortran'.
  
! '-cpp'
! '-nocpp'
!      Enable preprocessing.  The preprocessor is automatically invoked if
!      the file extension is '.fpp', '.FPP', '.F', '.FOR', '.FTN', '.F90',
!      '.F95', '.F03' or '.F08'.  Use this option to manually enable
!      preprocessing of any kind of Fortran file.
  
       To disable preprocessing of files with any of the above listed
!      extensions, use the negative form: '-nocpp'.
  
!      The preprocessor is run in traditional mode.  Any restrictions of
       the file-format, especially the limits on line length, apply for
       preprocessed output as well, so it might be advisable to use the
!      '-ffree-line-length-none' or '-ffixed-line-length-none' options.
  
! '-dM'
!      Instead of the normal output, generate a list of ''#define''
       directives for all the macros defined during the execution of the
!      preprocessor, including predefined macros.  This gives you a way of
       finding out what is predefined in your version of the preprocessor.
!      Assuming you have no file 'foo.f90', the command
              touch foo.f90; gfortran -cpp -E -dM foo.f90
       will show all the predefined macros.
  
! '-dD'
!      Like '-dM' except in two respects: it does not include the
!      predefined macros, and it outputs both the '#define' directives and
!      the result of preprocessing.  Both kinds of output go to the
       standard output file.
  
! '-dN'
!      Like '-dD', but emit only the macro names, not their expansions.
  
! '-dU'
!      Like 'dD' except that only macros that are expanded, or whose
       definedness is tested in preprocessor directives, are output; the
       output is delayed until the use or test of the macro; and
!      ''#undef'' directives are also output for macros tested but
       undefined at the time.
  
! '-dI'
!      Output ''#include'' directives in addition to the result of
       preprocessing.
  
! '-fworking-directory'
       Enable generation of linemarkers in the preprocessor output that
       will let the compiler know the current working directory at the
!      time of preprocessing.  When this option is enabled, the
       preprocessor will emit, after the initial linemarker, a second
       linemarker with the current working directory followed by two
!      slashes.  GCC will use this directory, when it is present in the
!      preprocessed input, as the directory emitted as the current working
!      directory in some debugging information formats.  This option is
!      implicitly enabled if debugging information is enabled, but this
!      can be inhibited with the negated form '-fno-working-directory'.
!      If the '-P' flag is present in the command line, this option has no
!      effect, since no '#line' directives are emitted whatsoever.
  
! '-idirafter DIR'
       Search DIR for include files, but do it after all directories
!      specified with '-I' and the standard system directories have been
!      exhausted.  DIR is treated as a system include directory.  If dir
!      begins with '=', then the '=' will be replaced by the sysroot
!      prefix; see '--sysroot' and '-isysroot'.
  
! '-imultilib DIR'
       Use DIR as a subdirectory of the directory containing
       target-specific C++ headers.
  
! '-iprefix PREFIX'
!      Specify PREFIX as the prefix for subsequent '-iwithprefix' options.
!      If the PREFIX represents a directory, you should include the final
!      ''/''.
  
! '-isysroot DIR'
!      This option is like the '--sysroot' option, but applies only to
!      header files.  See the '--sysroot' option for more information.
  
! '-iquote DIR'
!      Search DIR only for header files requested with '#include "file"';
!      they are not searched for '#include <file>', before all directories
!      specified by '-I' and before the standard system directories.  If
!      DIR begins with '=', then the '=' will be replaced by the sysroot
!      prefix; see '--sysroot' and '-isysroot'.
  
! '-isystem DIR'
       Search DIR for header files, after all directories specified by
!      '-I' but before the standard system directories.  Mark it as a
       system directory, so that it gets the same special treatment as is
!      applied to the standard system directories.  If DIR begins with
!      '=', then the '=' will be replaced by the sysroot prefix; see
!      '--sysroot' and '-isysroot'.
  
! '-nostdinc'
       Do not search the standard system directories for header files.
!      Only the directories you have specified with '-I' options (and the
       directory of the current file, if appropriate) are searched.
  
! '-undef'
       Do not predefine any system-specific or GCC-specific macros.  The
       standard predefined macros remain defined.
  
! '-APREDICATE=ANSWER'
       Make an assertion with the predicate PREDICATE and answer ANSWER.
       This form is preferred to the older form -A predicate(answer),
       which is still supported, because it does not use shell special
       characters.
  
! '-A-PREDICATE=ANSWER'
       Cancel an assertion with the predicate PREDICATE and answer ANSWER.
  
! '-C'
!      Do not discard comments.  All comments are passed through to the
!      output file, except for comments in processed directives, which are
!      deleted along with the directive.
  
!      You should be prepared for side effects when using '-C'; it causes
       the preprocessor to treat comments as tokens in their own right.
       For example, comments appearing at the start of what would be a
       directive line have the effect of turning that line into an
       ordinary source line, since the first token on the line is no
!      longer a ''#''.
  
!      Warning: this currently handles C-Style comments only.  The
       preprocessor does not yet recognize Fortran-style comments.
  
! '-CC'
!      Do not discard comments, including during macro expansion.  This is
!      like '-C', except that comments contained within macros are also
       passed through to the output file where the macro is expanded.
  
!      In addition to the side-effects of the '-C' option, the '-CC'
!      option causes all C++-style comments inside a macro to be converted
!      to C-style comments.  This is to prevent later use of that macro
!      from inadvertently commenting out the remainder of the source line.
!      The '-CC' option is generally used to support lint comments.
  
!      Warning: this currently handles C- and C++-Style comments only.
!      The preprocessor does not yet recognize Fortran-style comments.
  
! '-DNAME'
!      Predefine name as a macro, with definition '1'.
  
! '-DNAME=DEFINITION'
       The contents of DEFINITION are tokenized and processed as if they
!      appeared during translation phase three in a ''#define'' directive.
       In particular, the definition will be truncated by embedded newline
       characters.
  
*************** preprocessing in `gfortran'.
*** 869,896 ****
  
       If you wish to define a function-like macro on the command line,
       write its argument list with surrounding parentheses before the
!      equals sign (if any). Parentheses are meaningful to most shells,
!      so you will need to quote the option. With sh and csh,
!      `-D'name(args...)=definition'' works.
  
!      `-D' and `-U' options are processed in the order they are given on
!      the command line. All -imacros file and -include file options are
       processed after all -D and -U options.
  
! `-H'
       Print the name of each header file used, in addition to other
!      normal activities. Each name is indented to show how deep in the
!      `'#include'' stack it is.
  
! `-P'
       Inhibit generation of linemarkers in the output from the
       preprocessor.  This might be useful when running the preprocessor
       on something that is not C code, and will be sent to a program
       which might be confused by the linemarkers.
  
! `-UNAME'
       Cancel any previous definition of NAME, either built in or provided
!      with a `-D' option.
  
  
  File: gfortran.info,  Node: Error and Warning Options,  Next: Debugging Options,  Prev: Preprocessing Options,  Up: Invoking GNU Fortran
--- 868,895 ----
  
       If you wish to define a function-like macro on the command line,
       write its argument list with surrounding parentheses before the
!      equals sign (if any).  Parentheses are meaningful to most shells,
!      so you will need to quote the option.  With sh and csh,
!      '-D'name(args...)=definition'' works.
  
!      '-D' and '-U' options are processed in the order they are given on
!      the command line.  All -imacros file and -include file options are
       processed after all -D and -U options.
  
! '-H'
       Print the name of each header file used, in addition to other
!      normal activities.  Each name is indented to show how deep in the
!      ''#include'' stack it is.
  
! '-P'
       Inhibit generation of linemarkers in the output from the
       preprocessor.  This might be useful when running the preprocessor
       on something that is not C code, and will be sent to a program
       which might be confused by the linemarkers.
  
! '-UNAME'
       Cancel any previous definition of NAME, either built in or provided
!      with a '-D' option.
  
  
  File: gfortran.info,  Node: Error and Warning Options,  Next: Debugging Options,  Prev: Preprocessing Options,  Up: Invoking GNU Fortran
*************** to aid in debugging, but will not produc
*** 905,969 ****
  
     Warnings are diagnostic messages that report constructions which are
  not inherently erroneous but which are risky or suggest there is likely
! to be a bug in the program.  Unless `-Werror' is specified, they do not
  prevent compilation of the program.
  
!    You can request many specific warnings with options beginning `-W',
! for example `-Wimplicit' to request warnings on implicit declarations.
  Each of these specific warning options also has a negative form
! beginning `-Wno-' to turn off warnings; for example, `-Wno-implicit'.
  This manual lists only one of the two forms, whichever is not the
  default.
  
     These options control the amount and kinds of errors and warnings
  produced by GNU Fortran:
  
! `-fmax-errors=N'
       Limits the maximum number of error messages to N, at which point
!      GNU Fortran bails out rather than attempting to continue
!      processing the source code.  If N is 0, there is no limit on the
!      number of error messages produced.
  
! `-fsyntax-only'
       Check the code for syntax errors, but do not actually compile it.
       This will generate module files for each module present in the
       code, but no other output file.
  
! `-pedantic'
!      Issue warnings for uses of extensions to Fortran 95.  `-pedantic'
       also applies to C-language constructs where they occur in GNU
!      Fortran source files, such as use of `\e' in a character constant
!      within a directive like `#include'.
  
       Valid Fortran 95 programs should compile properly with or without
       this option.  However, without this option, certain GNU extensions
       and traditional Fortran features are supported as well.  With this
       option, many of them are rejected.
  
!      Some users try to use `-pedantic' to check programs for
       conformance.  They soon find that it does not do quite what they
       want--it finds some nonstandard practices, but not all.  However,
       improvements to GNU Fortran in this area are welcome.
  
!      This should be used in conjunction with `-std=f95', `-std=f2003'
!      or `-std=f2008'.
  
! `-pedantic-errors'
!      Like `-pedantic', except that errors are produced rather than
       warnings.
  
! `-Wall'
       Enables commonly used warning options pertaining to usage that we
       recommend avoiding and that we believe are easy to avoid.  This
!      currently includes `-Waliasing', `-Wampersand', `-Wconversion',
!      `-Wsurprising', `-Wc-binding-type', `-Wintrinsics-std', `-Wtabs',
!      `-Wintrinsic-shadow', `-Wline-truncation', `-Wtarget-lifetime',
!      `-Winteger-division', `-Wreal-q-constant' and `-Wunused'.
  
! `-Waliasing'
!      Warn about possible aliasing of dummy arguments. Specifically, it
       warns if the same actual argument is associated with a dummy
!      argument with `INTENT(IN)' and a dummy argument with `INTENT(OUT)'
       in a call with an explicit interface.
  
       The following example will trigger the warning.
--- 904,968 ----
  
     Warnings are diagnostic messages that report constructions which are
  not inherently erroneous but which are risky or suggest there is likely
! to be a bug in the program.  Unless '-Werror' is specified, they do not
  prevent compilation of the program.
  
!    You can request many specific warnings with options beginning '-W',
! for example '-Wimplicit' to request warnings on implicit declarations.
  Each of these specific warning options also has a negative form
! beginning '-Wno-' to turn off warnings; for example, '-Wno-implicit'.
  This manual lists only one of the two forms, whichever is not the
  default.
  
     These options control the amount and kinds of errors and warnings
  produced by GNU Fortran:
  
! '-fmax-errors=N'
       Limits the maximum number of error messages to N, at which point
!      GNU Fortran bails out rather than attempting to continue processing
!      the source code.  If N is 0, there is no limit on the number of
!      error messages produced.
  
! '-fsyntax-only'
       Check the code for syntax errors, but do not actually compile it.
       This will generate module files for each module present in the
       code, but no other output file.
  
! '-pedantic'
!      Issue warnings for uses of extensions to Fortran 95.  '-pedantic'
       also applies to C-language constructs where they occur in GNU
!      Fortran source files, such as use of '\e' in a character constant
!      within a directive like '#include'.
  
       Valid Fortran 95 programs should compile properly with or without
       this option.  However, without this option, certain GNU extensions
       and traditional Fortran features are supported as well.  With this
       option, many of them are rejected.
  
!      Some users try to use '-pedantic' to check programs for
       conformance.  They soon find that it does not do quite what they
       want--it finds some nonstandard practices, but not all.  However,
       improvements to GNU Fortran in this area are welcome.
  
!      This should be used in conjunction with '-std=f95', '-std=f2003' or
!      '-std=f2008'.
  
! '-pedantic-errors'
!      Like '-pedantic', except that errors are produced rather than
       warnings.
  
! '-Wall'
       Enables commonly used warning options pertaining to usage that we
       recommend avoiding and that we believe are easy to avoid.  This
!      currently includes '-Waliasing', '-Wampersand', '-Wconversion',
!      '-Wsurprising', '-Wc-binding-type', '-Wintrinsics-std', '-Wtabs',
!      '-Wintrinsic-shadow', '-Wline-truncation', '-Wtarget-lifetime',
!      '-Winteger-division', '-Wreal-q-constant' and '-Wunused'.
  
! '-Waliasing'
!      Warn about possible aliasing of dummy arguments.  Specifically, it
       warns if the same actual argument is associated with a dummy
!      argument with 'INTENT(IN)' and a dummy argument with 'INTENT(OUT)'
       in a call with an explicit interface.
  
       The following example will trigger the warning.
*************** produced by GNU Fortran:
*** 977,1050 ****
  
              call bar(a,a)
  
! `-Wampersand'
!      Warn about missing ampersand in continued character constants. The
!      warning is given with `-Wampersand', `-pedantic', `-std=f95',
!      `-std=f2003' and `-std=f2008'. Note: With no ampersand given in a
       continued character constant, GNU Fortran assumes continuation at
       the first non-comment, non-whitespace character after the ampersand
       that initiated the continuation.
  
! `-Warray-temporaries'
       Warn about array temporaries generated by the compiler.  The
       information generated by this warning is sometimes useful in
       optimization, in order to avoid such temporaries.
  
! `-Wc-binding-type'
       Warn if the a variable might not be C interoperable.  In
       particular, warn if the variable has been declared using an
       intrinsic type with default kind instead of using a kind parameter
!      defined for C interoperability in the intrinsic `ISO_C_Binding'
!      module.  This option is implied by `-Wall'.
  
! `-Wcharacter-truncation'
       Warn when a character assignment will truncate the assigned string.
  
! `-Wline-truncation'
       Warn when a source code line will be truncated.  This option is
!      implied by `-Wall'.  For free-form source code, the default is
!      `-Werror=line-truncation' such that truncations are reported as
       error.
  
! `-Wconversion'
!      Warn about implicit conversions that are likely to change the
!      value of the expression after conversion. Implied by `-Wall'.
  
! `-Wconversion-extra'
       Warn about implicit conversions between different types and kinds.
!      This option does _not_ imply `-Wconversion'.
  
! `-Wextra'
       Enables some warning options for usages of language features which
!      may be problematic. This currently includes `-Wcompare-reals' and
!      `-Wunused-parameter'.
  
! `-Wimplicit-interface'
       Warn if a procedure is called without an explicit interface.  Note
       this only checks that an explicit interface is present.  It does
       not check that the declared interfaces are consistent across
       program units.
  
! `-Wimplicit-procedure'
       Warn if a procedure is called that has neither an explicit
!      interface nor has been declared as `EXTERNAL'.
  
! `-Winteger-division'
       Warn if a constant integer division truncates it result.  As an
       example, 3/5 evaluates to 0.
  
! `-Wintrinsics-std'
!      Warn if `gfortran' finds a procedure named like an intrinsic not
!      available in the currently selected standard (with `-std') and
!      treats it as `EXTERNAL' procedure because of this.
!      `-fall-intrinsics' can be used to never trigger this behavior and
       always link to the intrinsic regardless of the selected standard.
  
! `-Wreal-q-constant'
!      Produce a warning if a real-literal-constant contains a `q'
       exponent-letter.
  
! `-Wsurprising'
       Produce a warning when "suspicious" code constructs are
       encountered.  While technically legal these usually indicate that
       an error has been made.
--- 976,1049 ----
  
              call bar(a,a)
  
! '-Wampersand'
!      Warn about missing ampersand in continued character constants.  The
!      warning is given with '-Wampersand', '-pedantic', '-std=f95',
!      '-std=f2003' and '-std=f2008'.  Note: With no ampersand given in a
       continued character constant, GNU Fortran assumes continuation at
       the first non-comment, non-whitespace character after the ampersand
       that initiated the continuation.
  
! '-Warray-temporaries'
       Warn about array temporaries generated by the compiler.  The
       information generated by this warning is sometimes useful in
       optimization, in order to avoid such temporaries.
  
! '-Wc-binding-type'
       Warn if the a variable might not be C interoperable.  In
       particular, warn if the variable has been declared using an
       intrinsic type with default kind instead of using a kind parameter
!      defined for C interoperability in the intrinsic 'ISO_C_Binding'
!      module.  This option is implied by '-Wall'.
  
! '-Wcharacter-truncation'
       Warn when a character assignment will truncate the assigned string.
  
! '-Wline-truncation'
       Warn when a source code line will be truncated.  This option is
!      implied by '-Wall'.  For free-form source code, the default is
!      '-Werror=line-truncation' such that truncations are reported as
       error.
  
! '-Wconversion'
!      Warn about implicit conversions that are likely to change the value
!      of the expression after conversion.  Implied by '-Wall'.
  
! '-Wconversion-extra'
       Warn about implicit conversions between different types and kinds.
!      This option does _not_ imply '-Wconversion'.
  
! '-Wextra'
       Enables some warning options for usages of language features which
!      may be problematic.  This currently includes '-Wcompare-reals' and
!      '-Wunused-parameter'.
  
! '-Wimplicit-interface'
       Warn if a procedure is called without an explicit interface.  Note
       this only checks that an explicit interface is present.  It does
       not check that the declared interfaces are consistent across
       program units.
  
! '-Wimplicit-procedure'
       Warn if a procedure is called that has neither an explicit
!      interface nor has been declared as 'EXTERNAL'.
  
! '-Winteger-division'
       Warn if a constant integer division truncates it result.  As an
       example, 3/5 evaluates to 0.
  
! '-Wintrinsics-std'
!      Warn if 'gfortran' finds a procedure named like an intrinsic not
!      available in the currently selected standard (with '-std') and
!      treats it as 'EXTERNAL' procedure because of this.
!      '-fall-intrinsics' can be used to never trigger this behavior and
       always link to the intrinsic regardless of the selected standard.
  
! '-Wreal-q-constant'
!      Produce a warning if a real-literal-constant contains a 'q'
       exponent-letter.
  
! '-Wsurprising'
       Produce a warning when "suspicious" code constructs are
       encountered.  While technically legal these usually indicate that
       an error has been made.
*************** produced by GNU Fortran:
*** 1061,1152 ****
            destination.
  
          * The type of a function result is declared more than once with
!           the same type.  If `-pedantic' or standard-conforming mode is
            enabled, this is an error.
  
!         * A `CHARACTER' variable is declared with negative length.
  
! `-Wtabs'
       By default, tabs are accepted as whitespace, but tabs are not
       members of the Fortran Character Set.  For continuation lines, a
!      tab followed by a digit between 1 and 9 is supported.  `-Wtabs'
!      will cause a warning to be issued if a tab is encountered. Note,
!      `-Wtabs' is active for `-pedantic', `-std=f95', `-std=f2003',
!      `-std=f2008', `-std=f2008ts' and `-Wall'.
  
! `-Wunderflow'
       Produce a warning when numerical constant expressions are
!      encountered, which yield an UNDERFLOW during compilation. Enabled
       by default.
  
! `-Wintrinsic-shadow'
       Warn if a user-defined procedure or module procedure has the same
       name as an intrinsic; in this case, an explicit interface or
!      `EXTERNAL' or `INTRINSIC' declaration might be needed to get calls
       later resolved to the desired intrinsic/procedure.  This option is
!      implied by `-Wall'.
  
! `-Wuse-without-only'
!      Warn if a `USE' statement has no `ONLY' qualifier and thus
       implicitly imports all public entities of the used module.
  
! `-Wunused-dummy-argument'
!      Warn about unused dummy arguments. This option is implied by
!      `-Wall'.
  
! `-Wunused-parameter'
!      Contrary to `gcc''s meaning of `-Wunused-parameter', `gfortran''s
       implementation of this option does not warn about unused dummy
!      arguments (see `-Wunused-dummy-argument'), but about unused
!      `PARAMETER' values. `-Wunused-parameter' is implied by `-Wextra'
!      if also `-Wunused' or `-Wall' is used.
  
! `-Walign-commons'
!      By default, `gfortran' warns about any occasion of variables being
!      padded for proper alignment inside a `COMMON' block. This warning
!      can be turned off via `-Wno-align-commons'. See also
!      `-falign-commons'.
  
! `-Wfunction-elimination'
       Warn if any calls to functions are eliminated by the optimizations
!      enabled by the `-ffrontend-optimize' option.
  
! `-Wrealloc-lhs'
       Warn when the compiler might insert code to for allocation or
       reallocation of an allocatable array variable of intrinsic type in
!      intrinsic assignments.  In hot loops, the Fortran 2003
!      reallocation feature may reduce the performance.  If the array is
!      already allocated with the correct shape, consider using a
!      whole-array array-spec (e.g. `(:,:,:)') for the variable on the
!      left-hand side to prevent the reallocation check. Note that in
!      some cases the warning is shown, even if the compiler will
!      optimize reallocation checks away.  For instance, when the
!      right-hand side contains the same variable multiplied by a scalar.
!      See also `-frealloc-lhs'.
  
! `-Wrealloc-lhs-all'
       Warn when the compiler inserts code to for allocation or
       reallocation of an allocatable variable; this includes scalars and
       derived types.
  
! `-Wcompare-reals'
       Warn when comparing real or complex types for equality or
!      inequality.  This option is implied by `-Wextra'.
  
! `-Wtarget-lifetime'
       Warn if the pointer in a pointer assignment might be longer than
!      the its target. This option is implied by `-Wall'.
  
! `-Wzerotrip'
!      Warn if a `DO' loop is known to execute zero times at compile
!      time.  This option is implied by `-Wall'.
  
! `-Werror'
       Turns all warnings into errors.
  
     *Note Options to Request or Suppress Errors and Warnings:
! (gcc)Warning Options, for information on more options offered by the
! GBE shared by `gfortran', `gcc' and other GNU compilers.
  
     Some of these have no effect when compiling programs written in
  Fortran.
--- 1060,1150 ----
            destination.
  
          * The type of a function result is declared more than once with
!           the same type.  If '-pedantic' or standard-conforming mode is
            enabled, this is an error.
  
!         * A 'CHARACTER' variable is declared with negative length.
  
! '-Wtabs'
       By default, tabs are accepted as whitespace, but tabs are not
       members of the Fortran Character Set.  For continuation lines, a
!      tab followed by a digit between 1 and 9 is supported.  '-Wtabs'
!      will cause a warning to be issued if a tab is encountered.  Note,
!      '-Wtabs' is active for '-pedantic', '-std=f95', '-std=f2003',
!      '-std=f2008', '-std=f2008ts' and '-Wall'.
  
! '-Wunderflow'
       Produce a warning when numerical constant expressions are
!      encountered, which yield an UNDERFLOW during compilation.  Enabled
       by default.
  
! '-Wintrinsic-shadow'
       Warn if a user-defined procedure or module procedure has the same
       name as an intrinsic; in this case, an explicit interface or
!      'EXTERNAL' or 'INTRINSIC' declaration might be needed to get calls
       later resolved to the desired intrinsic/procedure.  This option is
!      implied by '-Wall'.
  
! '-Wuse-without-only'
!      Warn if a 'USE' statement has no 'ONLY' qualifier and thus
       implicitly imports all public entities of the used module.
  
! '-Wunused-dummy-argument'
!      Warn about unused dummy arguments.  This option is implied by
!      '-Wall'.
  
! '-Wunused-parameter'
!      Contrary to 'gcc''s meaning of '-Wunused-parameter', 'gfortran''s
       implementation of this option does not warn about unused dummy
!      arguments (see '-Wunused-dummy-argument'), but about unused
!      'PARAMETER' values.  '-Wunused-parameter' is implied by '-Wextra'
!      if also '-Wunused' or '-Wall' is used.
  
! '-Walign-commons'
!      By default, 'gfortran' warns about any occasion of variables being
!      padded for proper alignment inside a 'COMMON' block.  This warning
!      can be turned off via '-Wno-align-commons'.  See also
!      '-falign-commons'.
  
! '-Wfunction-elimination'
       Warn if any calls to functions are eliminated by the optimizations
!      enabled by the '-ffrontend-optimize' option.
  
! '-Wrealloc-lhs'
       Warn when the compiler might insert code to for allocation or
       reallocation of an allocatable array variable of intrinsic type in
!      intrinsic assignments.  In hot loops, the Fortran 2003 reallocation
!      feature may reduce the performance.  If the array is already
!      allocated with the correct shape, consider using a whole-array
!      array-spec (e.g.  '(:,:,:)') for the variable on the left-hand side
!      to prevent the reallocation check.  Note that in some cases the
!      warning is shown, even if the compiler will optimize reallocation
!      checks away.  For instance, when the right-hand side contains the
!      same variable multiplied by a scalar.  See also '-frealloc-lhs'.
  
! '-Wrealloc-lhs-all'
       Warn when the compiler inserts code to for allocation or
       reallocation of an allocatable variable; this includes scalars and
       derived types.
  
! '-Wcompare-reals'
       Warn when comparing real or complex types for equality or
!      inequality.  This option is implied by '-Wextra'.
  
! '-Wtarget-lifetime'
       Warn if the pointer in a pointer assignment might be longer than
!      the its target.  This option is implied by '-Wall'.
  
! '-Wzerotrip'
!      Warn if a 'DO' loop is known to execute zero times at compile time.
!      This option is implied by '-Wall'.
  
! '-Werror'
       Turns all warnings into errors.
  
     *Note Options to Request or Suppress Errors and Warnings:
! (gcc)Warning Options, for information on more options offered by the GBE
! shared by 'gfortran', 'gcc' and other GNU compilers.
  
     Some of these have no effect when compiling programs written in
  Fortran.
*************** File: gfortran.info,  Node: Debugging Op
*** 1160,1227 ****
  GNU Fortran has various special options that are used for debugging
  either your program or the GNU Fortran compiler.
  
! `-fdump-fortran-original'
       Output the internal parse tree after translating the source program
       into internal representation.  Only really useful for debugging the
       GNU Fortran compiler itself.
  
! `-fdump-fortran-optimized'
       Output the parse tree after front-end optimization.  Only really
       useful for debugging the GNU Fortran compiler itself.
  
! `-fdump-parse-tree'
       Output the internal parse tree after translating the source program
       into internal representation.  Only really useful for debugging the
       GNU Fortran compiler itself.  This option is deprecated; use
!      `-fdump-fortran-original' instead.
  
! `-ffpe-trap=LIST'
       Specify a list of floating point exception traps to enable.  On
!      most systems, if a floating point exception occurs and the trap
!      for that exception is enabled, a SIGFPE signal will be sent and
!      the program being aborted, producing a core file useful for
!      debugging.  LIST is a (possibly empty) comma-separated list of the
!      following exceptions: `invalid' (invalid floating point operation,
!      such as `SQRT(-1.0)'), `zero' (division by zero), `overflow'
!      (overflow in a floating point operation), `underflow' (underflow
!      in a floating point operation), `inexact' (loss of precision
!      during operation), and `denormal' (operation performed on a
!      denormal value).  The first five exceptions correspond to the five
!      IEEE 754 exceptions, whereas the last one (`denormal') is not part
!      of the IEEE 754 standard but is available on some common
!      architectures such as x86.
  
!      The first three exceptions (`invalid', `zero', and `overflow')
       often indicate serious errors, and unless the program has
       provisions for dealing with these exceptions, enabling traps for
       these three exceptions is probably a good idea.
  
       Many, if not most, floating point operations incur loss of
!      precision due to rounding, and hence the `ffpe-trap=inexact' is
       likely to be uninteresting in practice.
  
       By default no exception traps are enabled.
  
! `-ffpe-summary=LIST'
       Specify a list of floating-point exceptions, whose flag status is
!      printed to `ERROR_UNIT' when invoking `STOP' and `ERROR STOP'.
!      LIST can be either `none', `all' or a comma-separated list of the
!      following exceptions: `invalid', `zero', `overflow', `underflow',
!      `inexact' and `denormal'. (See `-ffpe-trap' for a description of
       the exceptions.)
  
!      By default, a summary for all exceptions but `inexact' is shown.
  
! `-fno-backtrace'
       When a serious runtime error is encountered or a deadly signal is
       emitted (segmentation fault, illegal instruction, bus error,
       floating-point exception, and the other POSIX signals that have the
!      action `core'), the Fortran runtime library tries to output a
!      backtrace of the error. `-fno-backtrace' disables the backtrace
!      generation. This option only has influence for compilation of the
       Fortran main program.
  
- 
     *Note Options for Debugging Your Program or GCC: (gcc)Debugging
  Options, for more information on debugging options.
  
--- 1158,1223 ----
  GNU Fortran has various special options that are used for debugging
  either your program or the GNU Fortran compiler.
  
! '-fdump-fortran-original'
       Output the internal parse tree after translating the source program
       into internal representation.  Only really useful for debugging the
       GNU Fortran compiler itself.
  
! '-fdump-fortran-optimized'
       Output the parse tree after front-end optimization.  Only really
       useful for debugging the GNU Fortran compiler itself.
  
! '-fdump-parse-tree'
       Output the internal parse tree after translating the source program
       into internal representation.  Only really useful for debugging the
       GNU Fortran compiler itself.  This option is deprecated; use
!      '-fdump-fortran-original' instead.
  
! '-ffpe-trap=LIST'
       Specify a list of floating point exception traps to enable.  On
!      most systems, if a floating point exception occurs and the trap for
!      that exception is enabled, a SIGFPE signal will be sent and the
!      program being aborted, producing a core file useful for debugging.
!      LIST is a (possibly empty) comma-separated list of the following
!      exceptions: 'invalid' (invalid floating point operation, such as
!      'SQRT(-1.0)'), 'zero' (division by zero), 'overflow' (overflow in a
!      floating point operation), 'underflow' (underflow in a floating
!      point operation), 'inexact' (loss of precision during operation),
!      and 'denormal' (operation performed on a denormal value).  The
!      first five exceptions correspond to the five IEEE 754 exceptions,
!      whereas the last one ('denormal') is not part of the IEEE 754
!      standard but is available on some common architectures such as x86.
  
!      The first three exceptions ('invalid', 'zero', and 'overflow')
       often indicate serious errors, and unless the program has
       provisions for dealing with these exceptions, enabling traps for
       these three exceptions is probably a good idea.
  
       Many, if not most, floating point operations incur loss of
!      precision due to rounding, and hence the 'ffpe-trap=inexact' is
       likely to be uninteresting in practice.
  
       By default no exception traps are enabled.
  
! '-ffpe-summary=LIST'
       Specify a list of floating-point exceptions, whose flag status is
!      printed to 'ERROR_UNIT' when invoking 'STOP' and 'ERROR STOP'.
!      LIST can be either 'none', 'all' or a comma-separated list of the
!      following exceptions: 'invalid', 'zero', 'overflow', 'underflow',
!      'inexact' and 'denormal'.  (See '-ffpe-trap' for a description of
       the exceptions.)
  
!      By default, a summary for all exceptions but 'inexact' is shown.
  
! '-fno-backtrace'
       When a serious runtime error is encountered or a deadly signal is
       emitted (segmentation fault, illegal instruction, bus error,
       floating-point exception, and the other POSIX signals that have the
!      action 'core'), the Fortran runtime library tries to output a
!      backtrace of the error.  '-fno-backtrace' disables the backtrace
!      generation.  This option only has influence for compilation of the
       Fortran main program.
  
     *Note Options for Debugging Your Program or GCC: (gcc)Debugging
  Options, for more information on debugging options.
  
*************** File: gfortran.info,  Node: Directory Op
*** 1231,1266 ****
  2.6 Options for directory search
  ================================
  
! These options affect how GNU Fortran searches for files specified by
! the `INCLUDE' directive and where it searches for previously compiled
  modules.
  
!    It also affects the search paths used by `cpp' when used to
  preprocess Fortran source.
  
! `-IDIR'
!      These affect interpretation of the `INCLUDE' directive (as well as
!      of the `#include' directive of the `cpp' preprocessor).
  
!      Also note that the general behavior of `-I' and `INCLUDE' is
!      pretty much the same as of `-I' with `#include' in the `cpp'
!      preprocessor, with regard to looking for `header.gcc' files and
!      other such things.
  
!      This path is also used to search for `.mod' files when previously
!      compiled modules are required by a `USE' statement.
  
       *Note Options for Directory Search: (gcc)Directory Options, for
!      information on the `-I' option.
  
! `-JDIR'
!      This option specifies where to put `.mod' files for compiled
       modules.  It is also added to the list of directories to searched
!      by an `USE' statement.
  
       The default is the current directory.
  
! `-fintrinsic-modules-path DIR'
       This option specifies the location of pre-compiled intrinsic
       modules, if they are not in the default location expected by the
       compiler.
--- 1227,1262 ----
  2.6 Options for directory search
  ================================
  
! These options affect how GNU Fortran searches for files specified by the
! 'INCLUDE' directive and where it searches for previously compiled
  modules.
  
!    It also affects the search paths used by 'cpp' when used to
  preprocess Fortran source.
  
! '-IDIR'
!      These affect interpretation of the 'INCLUDE' directive (as well as
!      of the '#include' directive of the 'cpp' preprocessor).
  
!      Also note that the general behavior of '-I' and 'INCLUDE' is pretty
!      much the same as of '-I' with '#include' in the 'cpp' preprocessor,
!      with regard to looking for 'header.gcc' files and other such
!      things.
  
!      This path is also used to search for '.mod' files when previously
!      compiled modules are required by a 'USE' statement.
  
       *Note Options for Directory Search: (gcc)Directory Options, for
!      information on the '-I' option.
  
! '-JDIR'
!      This option specifies where to put '.mod' files for compiled
       modules.  It is also added to the list of directories to searched
!      by an 'USE' statement.
  
       The default is the current directory.
  
! '-fintrinsic-modules-path DIR'
       This option specifies the location of pre-compiled intrinsic
       modules, if they are not in the default location expected by the
       compiler.
*************** File: gfortran.info,  Node: Link Options
*** 1272,1284 ****
  ================================
  
  These options come into play when the compiler links object files into
! an executable output file. They are meaningless if the compiler is not
  doing a link step.
  
! `-static-libgfortran'
!      On systems that provide `libgfortran' as a shared and a static
!      library, this option forces the use of the static version. If no
!      shared version of `libgfortran' was built when the compiler was
       configured, this option has no effect.
  
  
--- 1268,1280 ----
  ================================
  
  These options come into play when the compiler links object files into
! an executable output file.  They are meaningless if the compiler is not
  doing a link step.
  
! '-static-libgfortran'
!      On systems that provide 'libgfortran' as a shared and a static
!      library, this option forces the use of the static version.  If no
!      shared version of 'libgfortran' was built when the compiler was
       configured, this option has no effect.
  
  
*************** File: gfortran.info,  Node: Runtime Opti
*** 1290,1327 ****
  These options affect the runtime behavior of programs compiled with GNU
  Fortran.
  
! `-fconvert=CONVERSION'
       Specify the representation of data for unformatted files.  Valid
!      values for conversion are: `native', the default; `swap', swap
!      between big- and little-endian; `big-endian', use big-endian
!      representation for unformatted files; `little-endian', use
       little-endian representation for unformatted files.
  
!      _This option has an effect only when used in the main program.
!      The `CONVERT' specifier and the GFORTRAN_CONVERT_UNIT environment
!      variable override the default specified by `-fconvert'._
  
! `-frecord-marker=LENGTH'
       Specify the length of record markers for unformatted files.  Valid
       values for LENGTH are 4 and 8.  Default is 4.  _This is different
!      from previous versions of `gfortran'_, which specified a default
       record marker length of 8 on most systems.  If you want to read or
!      write files compatible with earlier versions of `gfortran', use
!      `-frecord-marker=8'.
  
! `-fmax-subrecord-length=LENGTH'
       Specify the maximum length for a subrecord.  The maximum permitted
       value for length is 2147483639, which is also the default.  Only
       really useful for use by the gfortran testsuite.
  
! `-fsign-zero'
       When enabled, floating point numbers of value zero with the sign
       bit set are written as negative number in formatted output and
!      treated as negative in the `SIGN' intrinsic.  `-fno-sign-zero'
!      does not print the negative sign of zero values (or values rounded
!      to zero for I/O) and regards zero as positive number in the `SIGN'
!      intrinsic for compatibility with Fortran 77. The default is
!      `-fsign-zero'.
  
  
  File: gfortran.info,  Node: Code Gen Options,  Next: Environment Variables,  Prev: Runtime Options,  Up: Invoking GNU Fortran
--- 1286,1323 ----
  These options affect the runtime behavior of programs compiled with GNU
  Fortran.
  
! '-fconvert=CONVERSION'
       Specify the representation of data for unformatted files.  Valid
!      values for conversion are: 'native', the default; 'swap', swap
!      between big- and little-endian; 'big-endian', use big-endian
!      representation for unformatted files; 'little-endian', use
       little-endian representation for unformatted files.
  
!      _This option has an effect only when used in the main program.  The
!      'CONVERT' specifier and the GFORTRAN_CONVERT_UNIT environment
!      variable override the default specified by '-fconvert'._
  
! '-frecord-marker=LENGTH'
       Specify the length of record markers for unformatted files.  Valid
       values for LENGTH are 4 and 8.  Default is 4.  _This is different
!      from previous versions of 'gfortran'_, which specified a default
       record marker length of 8 on most systems.  If you want to read or
!      write files compatible with earlier versions of 'gfortran', use
!      '-frecord-marker=8'.
  
! '-fmax-subrecord-length=LENGTH'
       Specify the maximum length for a subrecord.  The maximum permitted
       value for length is 2147483639, which is also the default.  Only
       really useful for use by the gfortran testsuite.
  
! '-fsign-zero'
       When enabled, floating point numbers of value zero with the sign
       bit set are written as negative number in formatted output and
!      treated as negative in the 'SIGN' intrinsic.  '-fno-sign-zero' does
!      not print the negative sign of zero values (or values rounded to
!      zero for I/O) and regards zero as positive number in the 'SIGN'
!      intrinsic for compatibility with Fortran 77.  The default is
!      '-fsign-zero'.
  
  
  File: gfortran.info,  Node: Code Gen Options,  Next: Environment Variables,  Prev: Runtime Options,  Up: Invoking GNU Fortran
*************** File: gfortran.info,  Node: Code Gen Opt
*** 1329,1412 ****
  2.9 Options for code generation conventions
  ===========================================
  
! These machine-independent options control the interface conventions
! used in code generation.
  
     Most of them have both positive and negative forms; the negative form
! of `-ffoo' would be `-fno-foo'.  In the table below, only one of the
  forms is listed--the one which is not the default.  You can figure out
! the other form by either removing `no-' or adding it.
  
! `-fno-automatic'
       Treat each program unit (except those marked as RECURSIVE) as if
!      the `SAVE' statement were specified for every local variable and
!      array referenced in it. Does not affect common blocks. (Some
!      Fortran compilers provide this option under the name `-static' or
!      `-save'.)  The default, which is `-fautomatic', uses the stack for
       local variables smaller than the value given by
!      `-fmax-stack-var-size'.  Use the option `-frecursive' to use no
       static memory.
  
! `-ff2c'
       Generate code designed to be compatible with code generated by
!      `g77' and `f2c'.
  
!      The calling conventions used by `g77' (originally implemented in
!      `f2c') require functions that return type default `REAL' to
!      actually return the C type `double', and functions that return
!      type `COMPLEX' to return the values via an extra argument in the
!      calling sequence that points to where to store the return value.
!      Under the default GNU calling conventions, such functions simply
!      return their results as they would in GNU C--default `REAL'
!      functions return the C type `float', and `COMPLEX' functions
!      return the GNU C type `complex'.  Additionally, this option
!      implies the `-fsecond-underscore' option, unless
!      `-fno-second-underscore' is explicitly requested.
  
       This does not affect the generation of code that interfaces with
!      the `libgfortran' library.
  
       _Caution:_ It is not a good idea to mix Fortran code compiled with
!      `-ff2c' with code compiled with the default `-fno-f2c' calling
!      conventions as, calling `COMPLEX' or default `REAL' functions
       between program parts which were compiled with different calling
       conventions will break at execution time.
  
!      _Caution:_ This will break code which passes intrinsic functions
!      of type default `REAL' or `COMPLEX' as actual arguments, as the
!      library implementations use the `-fno-f2c' calling conventions.
  
! `-fno-underscoring'
       Do not transform names of entities specified in the Fortran source
       file by appending underscores to them.
  
!      With `-funderscoring' in effect, GNU Fortran appends one
!      underscore to external names with no underscores.  This is done to
!      ensure compatibility with code produced by many UNIX Fortran
!      compilers.
  
!      _Caution_: The default behavior of GNU Fortran is incompatible
!      with `f2c' and `g77', please use the `-ff2c' option if you want
!      object files compiled with GNU Fortran to be compatible with
!      object code created with these tools.
  
!      Use of `-fno-underscoring' is not recommended unless you are
       experimenting with issues such as integration of GNU Fortran into
       existing system environments (vis-a`-vis existing libraries, tools,
       and so on).
  
!      For example, with `-funderscoring', and assuming that `j()' and
!      `max_count()' are external functions while `my_var' and `lvar' are
       local variables, a statement like
            I = J() + MAX_COUNT (MY_VAR, LVAR)
       is implemented as something akin to:
            i = j_() + max_count__(&my_var__, &lvar);
  
!      With `-fno-underscoring', the same statement is implemented as:
  
            i = j() + max_count(&my_var, &lvar);
  
!      Use of `-fno-underscoring' allows direct specification of
       user-defined names while debugging and when interfacing GNU Fortran
       code with other languages.
  
--- 1325,1407 ----
  2.9 Options for code generation conventions
  ===========================================
  
! These machine-independent options control the interface conventions used
! in code generation.
  
     Most of them have both positive and negative forms; the negative form
! of '-ffoo' would be '-fno-foo'.  In the table below, only one of the
  forms is listed--the one which is not the default.  You can figure out
! the other form by either removing 'no-' or adding it.
  
! '-fno-automatic'
       Treat each program unit (except those marked as RECURSIVE) as if
!      the 'SAVE' statement were specified for every local variable and
!      array referenced in it.  Does not affect common blocks.  (Some
!      Fortran compilers provide this option under the name '-static' or
!      '-save'.)  The default, which is '-fautomatic', uses the stack for
       local variables smaller than the value given by
!      '-fmax-stack-var-size'.  Use the option '-frecursive' to use no
       static memory.
  
! '-ff2c'
       Generate code designed to be compatible with code generated by
!      'g77' and 'f2c'.
  
!      The calling conventions used by 'g77' (originally implemented in
!      'f2c') require functions that return type default 'REAL' to
!      actually return the C type 'double', and functions that return type
!      'COMPLEX' to return the values via an extra argument in the calling
!      sequence that points to where to store the return value.  Under the
!      default GNU calling conventions, such functions simply return their
!      results as they would in GNU C--default 'REAL' functions return the
!      C type 'float', and 'COMPLEX' functions return the GNU C type
!      'complex'.  Additionally, this option implies the
!      '-fsecond-underscore' option, unless '-fno-second-underscore' is
!      explicitly requested.
  
       This does not affect the generation of code that interfaces with
!      the 'libgfortran' library.
  
       _Caution:_ It is not a good idea to mix Fortran code compiled with
!      '-ff2c' with code compiled with the default '-fno-f2c' calling
!      conventions as, calling 'COMPLEX' or default 'REAL' functions
       between program parts which were compiled with different calling
       conventions will break at execution time.
  
!      _Caution:_ This will break code which passes intrinsic functions of
!      type default 'REAL' or 'COMPLEX' as actual arguments, as the
!      library implementations use the '-fno-f2c' calling conventions.
  
! '-fno-underscoring'
       Do not transform names of entities specified in the Fortran source
       file by appending underscores to them.
  
!      With '-funderscoring' in effect, GNU Fortran appends one underscore
!      to external names with no underscores.  This is done to ensure
!      compatibility with code produced by many UNIX Fortran compilers.
  
!      _Caution_: The default behavior of GNU Fortran is incompatible with
!      'f2c' and 'g77', please use the '-ff2c' option if you want object
!      files compiled with GNU Fortran to be compatible with object code
!      created with these tools.
  
!      Use of '-fno-underscoring' is not recommended unless you are
       experimenting with issues such as integration of GNU Fortran into
       existing system environments (vis-a`-vis existing libraries, tools,
       and so on).
  
!      For example, with '-funderscoring', and assuming that 'j()' and
!      'max_count()' are external functions while 'my_var' and 'lvar' are
       local variables, a statement like
            I = J() + MAX_COUNT (MY_VAR, LVAR)
       is implemented as something akin to:
            i = j_() + max_count__(&my_var__, &lvar);
  
!      With '-fno-underscoring', the same statement is implemented as:
  
            i = j() + max_count(&my_var, &lvar);
  
!      Use of '-fno-underscoring' allows direct specification of
       user-defined names while debugging and when interfacing GNU Fortran
       code with other languages.
  
*************** the other form by either removing `no-'
*** 1414,1427 ****
       interface implemented by GNU Fortran for an external name matches
       the interface implemented by some other language for that same
       name.  That is, getting code produced by GNU Fortran to link to
!      code produced by some other compiler using this or any other
!      method can be only a small part of the overall solution--getting
!      the code generated by both compilers to agree on issues other than
!      naming can require significant effort, and, unlike naming
!      disagreements, linkers normally cannot detect disagreements in
!      these other areas.
  
!      Also, note that with `-fno-underscoring', the lack of appended
       underscores introduces the very real possibility that a
       user-defined external name will conflict with a name in a system
       library, which could make finding unresolved-reference bugs quite
--- 1409,1421 ----
       interface implemented by GNU Fortran for an external name matches
       the interface implemented by some other language for that same
       name.  That is, getting code produced by GNU Fortran to link to
!      code produced by some other compiler using this or any other method
!      can be only a small part of the overall solution--getting the code
!      generated by both compilers to agree on issues other than naming
!      can require significant effort, and, unlike naming disagreements,
!      linkers normally cannot detect disagreements in these other areas.
  
!      Also, note that with '-fno-underscoring', the lack of appended
       underscores introduces the very real possibility that a
       user-defined external name will conflict with a name in a system
       library, which could make finding unresolved-reference bugs quite
*************** the other form by either removing `no-'
*** 1429,1488 ****
       show up only as buggy behavior at run time.
  
       In future versions of GNU Fortran we hope to improve naming and
!      linking issues so that debugging always involves using the names
!      as they appear in the source, even if the names as seen by the
!      linker are mangled to prevent accidental linking between
!      procedures with incompatible interfaces.
  
! `-fsecond-underscore'
       By default, GNU Fortran appends an underscore to external names.
!      If this option is used GNU Fortran appends two underscores to
!      names with underscores and one underscore to external names with
!      no underscores.  GNU Fortran also appends two underscores to
!      internal names with underscores to avoid naming collisions with
!      external names.
  
!      This option has no effect if `-fno-underscoring' is in effect.  It
!      is implied by the `-ff2c' option.
  
!      Otherwise, with this option, an external name such as `MAX_COUNT'
       is implemented as a reference to the link-time external symbol
!      `max_count__', instead of `max_count_'.  This is required for
!      compatibility with `g77' and `f2c', and is implied by use of the
!      `-ff2c' option.
  
! `-fcoarray=<KEYWORD>'
  
!     `none'
            Disable coarray support; using coarray declarations and
            image-control statements will produce a compile-time error.
            (Default)
  
!     `single'
!           Single-image mode, i.e. `num_images()' is always one.
  
!     `lib'
            Library-based coarray parallelization; a suitable GNU Fortran
            coarray library needs to be linked.
  
! `-fcheck=<KEYWORD>'
       Enable the generation of run-time checks; the argument shall be a
       comma-delimited list of the following keywords.  Prefixing a check
!      with `no-' disables it if it was activated by a previous
       specification.
  
!     `all'
!           Enable all run-time test of `-fcheck'.
  
!     `array-temps'
            Warns at run time when for passing an actual argument a
!           temporary array had to be generated. The information
!           generated by this warning is sometimes useful in
!           optimization, in order to avoid such temporaries.
  
            Note: The warning is only printed once per location.
  
!     `bounds'
            Enable generation of run-time checks for array subscripts and
            against the declared minimum and maximum values.  It also
            checks array indices for assumed and deferred shape arrays
--- 1423,1483 ----
       show up only as buggy behavior at run time.
  
       In future versions of GNU Fortran we hope to improve naming and
!      linking issues so that debugging always involves using the names as
!      they appear in the source, even if the names as seen by the linker
!      are mangled to prevent accidental linking between procedures with
!      incompatible interfaces.
  
! '-fsecond-underscore'
       By default, GNU Fortran appends an underscore to external names.
!      If this option is used GNU Fortran appends two underscores to names
!      with underscores and one underscore to external names with no
!      underscores.  GNU Fortran also appends two underscores to internal
!      names with underscores to avoid naming collisions with external
!      names.
  
!      This option has no effect if '-fno-underscoring' is in effect.  It
!      is implied by the '-ff2c' option.
  
!      Otherwise, with this option, an external name such as 'MAX_COUNT'
       is implemented as a reference to the link-time external symbol
!      'max_count__', instead of 'max_count_'.  This is required for
!      compatibility with 'g77' and 'f2c', and is implied by use of the
!      '-ff2c' option.
  
! '-fcoarray=<KEYWORD>'
  
!      'none'
            Disable coarray support; using coarray declarations and
            image-control statements will produce a compile-time error.
            (Default)
  
!      'single'
!           Single-image mode, i.e.  'num_images()' is always one.
  
!      'lib'
            Library-based coarray parallelization; a suitable GNU Fortran
            coarray library needs to be linked.
  
! '-fcheck=<KEYWORD>'
! 
       Enable the generation of run-time checks; the argument shall be a
       comma-delimited list of the following keywords.  Prefixing a check
!      with 'no-' disables it if it was activated by a previous
       specification.
  
!      'all'
!           Enable all run-time test of '-fcheck'.
  
!      'array-temps'
            Warns at run time when for passing an actual argument a
!           temporary array had to be generated.  The information
!           generated by this warning is sometimes useful in optimization,
!           in order to avoid such temporaries.
  
            Note: The warning is only printed once per location.
  
!      'bounds'
            Enable generation of run-time checks for array subscripts and
            against the declared minimum and maximum values.  It also
            checks array indices for assumed and deferred shape arrays
*************** the other form by either removing `no-'
*** 1490,1533 ****
            string lengths are equal for character array constructors
            without an explicit typespec.
  
!           Some checks require that `-fcheck=bounds' is set for the
            compilation of the main program.
  
            Note: In the future this may also include other forms of
            checking, e.g., checking substring references.
  
!     `do'
            Enable generation of run-time checks for invalid modification
            of loop iteration variables.
  
!     `mem'
            Enable generation of run-time checks for memory allocation.
            Note: This option does not affect explicit allocations using
!           the `ALLOCATE' statement, which will be always checked.
  
!     `pointer'
            Enable generation of run-time checks for pointers and
            allocatables.
  
!     `recursion'
            Enable generation of run-time checks for recursively called
            subroutines and functions which are not marked as recursive.
!           See also `-frecursive'.  Note: This check does not work for
            OpenMP programs and is disabled if used together with
!           `-frecursive' and `-fopenmp'.
  
!      Example: Assuming you have a file `foo.f90', the command
              gfortran -fcheck=all,no-array-temps foo.f90
       will compile the file with all checks enabled as specified above
       except warnings for generated array temporaries.
  
! `-fbounds-check'
!      Deprecated alias for `-fcheck=bounds'.
  
! `-fcheck-array-temporaries'
!      Deprecated alias for `-fcheck=array-temps'.
  
! `-fmax-array-constructor=N'
       This option can be used to increase the upper limit permitted in
       array constructors.  The code below requires this option to expand
       the array at compile time.
--- 1485,1528 ----
            string lengths are equal for character array constructors
            without an explicit typespec.
  
!           Some checks require that '-fcheck=bounds' is set for the
            compilation of the main program.
  
            Note: In the future this may also include other forms of
            checking, e.g., checking substring references.
  
!      'do'
            Enable generation of run-time checks for invalid modification
            of loop iteration variables.
  
!      'mem'
            Enable generation of run-time checks for memory allocation.
            Note: This option does not affect explicit allocations using
!           the 'ALLOCATE' statement, which will be always checked.
  
!      'pointer'
            Enable generation of run-time checks for pointers and
            allocatables.
  
!      'recursion'
            Enable generation of run-time checks for recursively called
            subroutines and functions which are not marked as recursive.
!           See also '-frecursive'.  Note: This check does not work for
            OpenMP programs and is disabled if used together with
!           '-frecursive' and '-fopenmp'.
  
!      Example: Assuming you have a file 'foo.f90', the command
              gfortran -fcheck=all,no-array-temps foo.f90
       will compile the file with all checks enabled as specified above
       except warnings for generated array temporaries.
  
! '-fbounds-check'
!      Deprecated alias for '-fcheck=bounds'.
  
! '-fcheck-array-temporaries'
!      Deprecated alias for '-fcheck=array-temps'.
  
! '-fmax-array-constructor=N'
       This option can be used to increase the upper limit permitted in
       array constructors.  The code below requires this option to expand
       the array at compile time.
*************** the other form by either removing `no-'
*** 1540,1557 ****
            print '(10(I0,1X))', i
            end program test
  
!      _Caution:  This option can lead to long compile times and
       excessively large object files._
  
       The default value for N is 65535.
  
! `-fmax-stack-var-size=N'
       This option specifies the size in bytes of the largest array that
       will be put on the stack; if the size is exceeded static memory is
       used (except in procedures marked as RECURSIVE). Use the option
!      `-frecursive' to allow for recursive procedures which do not have
!      a RECURSIVE attribute or for parallel programs. Use
!      `-fno-automatic' to never use the stack.
  
       This option currently only affects local arrays declared with
       constant bounds, and may not apply to all character variables.
--- 1535,1552 ----
            print '(10(I0,1X))', i
            end program test
  
!      _Caution: This option can lead to long compile times and
       excessively large object files._
  
       The default value for N is 65535.
  
! '-fmax-stack-var-size=N'
       This option specifies the size in bytes of the largest array that
       will be put on the stack; if the size is exceeded static memory is
       used (except in procedures marked as RECURSIVE). Use the option
!      '-frecursive' to allow for recursive procedures which do not have a
!      RECURSIVE attribute or for parallel programs.  Use '-fno-automatic'
!      to never use the stack.
  
       This option currently only affects local arrays declared with
       constant bounds, and may not apply to all character variables.
*************** the other form by either removing `no-'
*** 1559,1722 ****
  
       The default value for N is 32768.
  
! `-fstack-arrays'
       Adding this option will make the Fortran compiler put all local
       arrays, even those of unknown size onto stack memory.  If your
       program uses very large local arrays it is possible that you will
       have to extend your runtime limits for stack memory on some
!      operating systems. This flag is enabled by default at optimization
!      level `-Ofast'.
  
! `-fpack-derived'
       This option tells GNU Fortran to pack derived type members as
       closely as possible.  Code compiled with this option is likely to
       be incompatible with code compiled without this option, and may
       execute slower.
  
! `-frepack-arrays'
       In some circumstances GNU Fortran may pass assumed shape array
       sections via a descriptor describing a noncontiguous area of
       memory.  This option adds code to the function prologue to repack
       the data into a contiguous block at runtime.
  
!      This should result in faster accesses to the array.  However it
!      can introduce significant overhead to the function call,
!      especially  when the passed data is noncontiguous.
  
! `-fshort-enums'
       This option is provided for interoperability with C code that was
!      compiled with the `-fshort-enums' option.  It will make GNU
!      Fortran choose the smallest `INTEGER' kind a given enumerator set
!      will fit in, and give all its enumerators this kind.
  
! `-fexternal-blas'
!      This option will make `gfortran' generate calls to BLAS functions
!      for some matrix operations like `MATMUL', instead of using our own
       algorithms, if the size of the matrices involved is larger than a
!      given limit (see `-fblas-matmul-limit').  This may be profitable
!      if an optimized vendor BLAS library is available.  The BLAS
!      library will have to be specified at link time.
  
! `-fblas-matmul-limit=N'
!      Only significant when `-fexternal-blas' is in effect.  Matrix
       multiplication of matrices with size larger than (or equal to) N
       will be performed by calls to BLAS functions, while others will be
!      handled by `gfortran' internal algorithms. If the matrices
       involved are not square, the size comparison is performed using the
       geometric mean of the dimensions of the argument and result
       matrices.
  
       The default value for N is 30.
  
! `-finline-matmul-limit=N'
!      When front-end optimiztion is active, some calls to the `MATMUL'
       intrinsic function will be inlined.  This may result in code size
       increase if the size of the matrix cannot be determined at compile
       time, as code for both cases is generated.  Setting
!      `-finline-matmul-limit=0' will disable inlining in all cases.
       Setting this option with a value of N will produce inline code for
!      matrices with size up to N. If the matrices involved are not
       square, the size comparison is performed using the geometric mean
       of the dimensions of the argument and result matrices.
  
       The default value for N is the value specified for
!      `-fblas-matmul-limit' if this option is specified, or unlimitited
       otherwise.
  
! `-frecursive'
       Allow indirect recursion by forcing all local arrays to be
!      allocated on the stack. This flag cannot be used together with
!      `-fmax-stack-var-size=' or `-fno-automatic'.
  
! `-finit-local-zero'
! `-finit-integer=N'
! `-finit-real=<ZERO|INF|-INF|NAN|SNAN>'
! `-finit-logical=<TRUE|FALSE>'
! `-finit-character=N'
!      The `-finit-local-zero' option instructs the compiler to
!      initialize local `INTEGER', `REAL', and `COMPLEX' variables to
!      zero, `LOGICAL' variables to false, and `CHARACTER' variables to a
!      string of null bytes.  Finer-grained initialization options are
!      provided by the `-finit-integer=N',
!      `-finit-real=<ZERO|INF|-INF|NAN|SNAN>' (which also initializes the
!      real and imaginary parts of local `COMPLEX' variables),
!      `-finit-logical=<TRUE|FALSE>', and `-finit-character=N' (where N
!      is an ASCII character value) options.  These options do not
!      initialize
          * allocatable arrays
- 
          * components of derived type variables
! 
!         * variables that appear in an `EQUIVALENCE' statement.
       (These limitations may be removed in future releases).
  
!      Note that the `-finit-real=nan' option initializes `REAL' and
!      `COMPLEX' variables with a quiet NaN. For a signalling NaN use
!      `-finit-real=snan'; note, however, that compile-time optimizations
       may convert them into quiet NaN and that trapping needs to be
!      enabled (e.g. via `-ffpe-trap').
  
!      Finally, note that enabling any of the `-finit-*' options will
!      silence warnings that would have been emitted by `-Wuninitialized'
       for the affected local variables.
  
! `-falign-commons'
!      By default, `gfortran' enforces proper alignment of all variables
!      in a `COMMON' block by padding them as needed. On certain
       platforms this is mandatory, on others it increases performance.
!      If a `COMMON' block is not declared with consistent data types
       everywhere, this padding can cause trouble, and
!      `-fno-align-commons' can be used to disable automatic alignment.
       The same form of this option should be used for all files that
!      share a `COMMON' block.  To avoid potential alignment issues in
!      `COMMON' blocks, it is recommended to order objects from largest
!      to smallest.
  
! `-fno-protect-parens'
       By default the parentheses in expression are honored for all
       optimization levels such that the compiler does not do any
!      re-association. Using `-fno-protect-parens' allows the compiler to
!      reorder `REAL' and `COMPLEX' expressions to produce faster code.
!      Note that for the re-association optimization `-fno-signed-zeros'
!      and `-fno-trapping-math' need to be in effect. The parentheses
!      protection is enabled by default, unless `-Ofast' is given.
  
! `-frealloc-lhs'
       An allocatable left-hand side of an intrinsic assignment is
       automatically (re)allocated if it is either unallocated or has a
!      different shape. The option is enabled by default except when
!      `-std=f95' is given. See also `-Wrealloc-lhs'.
  
! `-faggressive-function-elimination'
       Functions with identical argument lists are eliminated within
!      statements, regardless of whether these functions are marked
!      `PURE' or not. For example, in
              a = f(b,c) + f(b,c)
!      there will only be a single call to `f'.  This option only works
!      if `-ffrontend-optimize' is in effect.
  
! `-ffrontend-optimize'
       This option performs front-end optimization, based on manipulating
!      parts the Fortran parse tree.  Enabled by default by any `-O'
       option.  Optimizations enabled by this option include inlining
!      calls to `MATMUL', elimination of identical function calls within
!      expressions, removing unnecessary calls to `TRIM' in comparisons
!      and assignments and replacing `TRIM(a)' with `a(1:LEN_TRIM(a))'.
!      It can be deselected by specifying `-fno-frontend-optimize'.
  
!    *Note Options for Code Generation Conventions: (gcc)Code Gen
! Options, for information on more options offered by the GBE shared by
! `gfortran', `gcc', and other GNU compilers.
  
  
  File: gfortran.info,  Node: Environment Variables,  Prev: Code Gen Options,  Up: Invoking GNU Fortran
  
! 2.10 Environment variables affecting `gfortran'
  ===============================================
  
! The `gfortran' compiler currently does not make use of any environment
  variables to control its operation above and beyond those that affect
! the operation of `gcc'.
  
     *Note Environment Variables Affecting GCC: (gcc)Environment
  Variables, for information on environment variables.
--- 1554,1714 ----
  
       The default value for N is 32768.
  
! '-fstack-arrays'
       Adding this option will make the Fortran compiler put all local
       arrays, even those of unknown size onto stack memory.  If your
       program uses very large local arrays it is possible that you will
       have to extend your runtime limits for stack memory on some
!      operating systems.  This flag is enabled by default at optimization
!      level '-Ofast'.
  
! '-fpack-derived'
       This option tells GNU Fortran to pack derived type members as
       closely as possible.  Code compiled with this option is likely to
       be incompatible with code compiled without this option, and may
       execute slower.
  
! '-frepack-arrays'
       In some circumstances GNU Fortran may pass assumed shape array
       sections via a descriptor describing a noncontiguous area of
       memory.  This option adds code to the function prologue to repack
       the data into a contiguous block at runtime.
  
!      This should result in faster accesses to the array.  However it can
!      introduce significant overhead to the function call, especially
!      when the passed data is noncontiguous.
  
! '-fshort-enums'
       This option is provided for interoperability with C code that was
!      compiled with the '-fshort-enums' option.  It will make GNU Fortran
!      choose the smallest 'INTEGER' kind a given enumerator set will fit
!      in, and give all its enumerators this kind.
  
! '-fexternal-blas'
!      This option will make 'gfortran' generate calls to BLAS functions
!      for some matrix operations like 'MATMUL', instead of using our own
       algorithms, if the size of the matrices involved is larger than a
!      given limit (see '-fblas-matmul-limit').  This may be profitable if
!      an optimized vendor BLAS library is available.  The BLAS library
!      will have to be specified at link time.
  
! '-fblas-matmul-limit=N'
!      Only significant when '-fexternal-blas' is in effect.  Matrix
       multiplication of matrices with size larger than (or equal to) N
       will be performed by calls to BLAS functions, while others will be
!      handled by 'gfortran' internal algorithms.  If the matrices
       involved are not square, the size comparison is performed using the
       geometric mean of the dimensions of the argument and result
       matrices.
  
       The default value for N is 30.
  
! '-finline-matmul-limit=N'
!      When front-end optimiztion is active, some calls to the 'MATMUL'
       intrinsic function will be inlined.  This may result in code size
       increase if the size of the matrix cannot be determined at compile
       time, as code for both cases is generated.  Setting
!      '-finline-matmul-limit=0' will disable inlining in all cases.
       Setting this option with a value of N will produce inline code for
!      matrices with size up to N.  If the matrices involved are not
       square, the size comparison is performed using the geometric mean
       of the dimensions of the argument and result matrices.
  
       The default value for N is the value specified for
!      '-fblas-matmul-limit' if this option is specified, or unlimitited
       otherwise.
  
! '-frecursive'
       Allow indirect recursion by forcing all local arrays to be
!      allocated on the stack.  This flag cannot be used together with
!      '-fmax-stack-var-size=' or '-fno-automatic'.
  
! '-finit-local-zero'
! '-finit-integer=N'
! '-finit-real=<ZERO|INF|-INF|NAN|SNAN>'
! '-finit-logical=<TRUE|FALSE>'
! '-finit-character=N'
!      The '-finit-local-zero' option instructs the compiler to initialize
!      local 'INTEGER', 'REAL', and 'COMPLEX' variables to zero, 'LOGICAL'
!      variables to false, and 'CHARACTER' variables to a string of null
!      bytes.  Finer-grained initialization options are provided by the
!      '-finit-integer=N', '-finit-real=<ZERO|INF|-INF|NAN|SNAN>' (which
!      also initializes the real and imaginary parts of local 'COMPLEX'
!      variables), '-finit-logical=<TRUE|FALSE>', and '-finit-character=N'
!      (where N is an ASCII character value) options.  These options do
!      not initialize
          * allocatable arrays
          * components of derived type variables
!         * variables that appear in an 'EQUIVALENCE' statement.
       (These limitations may be removed in future releases).
  
!      Note that the '-finit-real=nan' option initializes 'REAL' and
!      'COMPLEX' variables with a quiet NaN. For a signalling NaN use
!      '-finit-real=snan'; note, however, that compile-time optimizations
       may convert them into quiet NaN and that trapping needs to be
!      enabled (e.g.  via '-ffpe-trap').
  
!      Finally, note that enabling any of the '-finit-*' options will
!      silence warnings that would have been emitted by '-Wuninitialized'
       for the affected local variables.
  
! '-falign-commons'
!      By default, 'gfortran' enforces proper alignment of all variables
!      in a 'COMMON' block by padding them as needed.  On certain
       platforms this is mandatory, on others it increases performance.
!      If a 'COMMON' block is not declared with consistent data types
       everywhere, this padding can cause trouble, and
!      '-fno-align-commons' can be used to disable automatic alignment.
       The same form of this option should be used for all files that
!      share a 'COMMON' block.  To avoid potential alignment issues in
!      'COMMON' blocks, it is recommended to order objects from largest to
!      smallest.
  
! '-fno-protect-parens'
       By default the parentheses in expression are honored for all
       optimization levels such that the compiler does not do any
!      re-association.  Using '-fno-protect-parens' allows the compiler to
!      reorder 'REAL' and 'COMPLEX' expressions to produce faster code.
!      Note that for the re-association optimization '-fno-signed-zeros'
!      and '-fno-trapping-math' need to be in effect.  The parentheses
!      protection is enabled by default, unless '-Ofast' is given.
  
! '-frealloc-lhs'
       An allocatable left-hand side of an intrinsic assignment is
       automatically (re)allocated if it is either unallocated or has a
!      different shape.  The option is enabled by default except when
!      '-std=f95' is given.  See also '-Wrealloc-lhs'.
  
! '-faggressive-function-elimination'
       Functions with identical argument lists are eliminated within
!      statements, regardless of whether these functions are marked 'PURE'
!      or not.  For example, in
              a = f(b,c) + f(b,c)
!      there will only be a single call to 'f'.  This option only works if
!      '-ffrontend-optimize' is in effect.
  
! '-ffrontend-optimize'
       This option performs front-end optimization, based on manipulating
!      parts the Fortran parse tree.  Enabled by default by any '-O'
       option.  Optimizations enabled by this option include inlining
!      calls to 'MATMUL', elimination of identical function calls within
!      expressions, removing unnecessary calls to 'TRIM' in comparisons
!      and assignments and replacing 'TRIM(a)' with 'a(1:LEN_TRIM(a))'.
!      It can be deselected by specifying '-fno-frontend-optimize'.
  
!    *Note Options for Code Generation Conventions: (gcc)Code Gen Options,
! for information on more options offered by the GBE shared by 'gfortran',
! 'gcc', and other GNU compilers.
  
  
  File: gfortran.info,  Node: Environment Variables,  Prev: Code Gen Options,  Up: Invoking GNU Fortran
  
! 2.10 Environment variables affecting 'gfortran'
  ===============================================
  
! The 'gfortran' compiler currently does not make use of any environment
  variables to control its operation above and beyond those that affect
! the operation of 'gcc'.
  
     *Note Environment Variables Affecting GCC: (gcc)Environment
  Variables, for information on environment variables.
*************** behavior of programs compiled with GNU F
*** 1727,1736 ****
  
  File: gfortran.info,  Node: Runtime,  Next: Fortran 2003 and 2008 status,  Prev: Invoking GNU Fortran,  Up: Top
  
! 3 Runtime:  Influencing runtime behavior with environment variables
! *******************************************************************
  
! The behavior of the `gfortran' can be influenced by environment
  variables.
  
     Malformed environment variables are silently ignored.
--- 1719,1728 ----
  
  File: gfortran.info,  Node: Runtime,  Next: Fortran 2003 and 2008 status,  Prev: Invoking GNU Fortran,  Up: Top
  
! 3 Runtime: Influencing runtime behavior with environment variables
! ******************************************************************
  
! The behavior of the 'gfortran' can be influenced by environment
  variables.
  
     Malformed environment variables are silently ignored.
*************** variables.
*** 1753,1778 ****
  
  File: gfortran.info,  Node: TMPDIR,  Next: GFORTRAN_STDIN_UNIT,  Up: Runtime
  
! 3.1 `TMPDIR'--Directory for scratch files
  =========================================
  
! When opening a file with `STATUS='SCRATCH'', GNU Fortran tries to
! create the file in one of the potential directories by testing each
! directory in the order below.
  
!   1. The environment variable `TMPDIR', if it exists.
  
!   2. On the MinGW target, the directory returned by the `GetTempPath'
!      function. Alternatively, on the Cygwin target, the `TMP' and
!      `TEMP' environment variables, if they exist, in that order.
  
!   3. The `P_tmpdir' macro if it is defined, otherwise the directory
!      `/tmp'.
  
  
  File: gfortran.info,  Node: GFORTRAN_STDIN_UNIT,  Next: GFORTRAN_STDOUT_UNIT,  Prev: TMPDIR,  Up: Runtime
  
! 3.2 `GFORTRAN_STDIN_UNIT'--Unit number for standard input
  =========================================================
  
  This environment variable can be used to select the unit number
--- 1745,1770 ----
  
  File: gfortran.info,  Node: TMPDIR,  Next: GFORTRAN_STDIN_UNIT,  Up: Runtime
  
! 3.1 'TMPDIR'--Directory for scratch files
  =========================================
  
! When opening a file with 'STATUS='SCRATCH'', GNU Fortran tries to create
! the file in one of the potential directories by testing each directory
! in the order below.
  
!   1. The environment variable 'TMPDIR', if it exists.
  
!   2. On the MinGW target, the directory returned by the 'GetTempPath'
!      function.  Alternatively, on the Cygwin target, the 'TMP' and
!      'TEMP' environment variables, if they exist, in that order.
  
!   3. The 'P_tmpdir' macro if it is defined, otherwise the directory
!      '/tmp'.
  
  
  File: gfortran.info,  Node: GFORTRAN_STDIN_UNIT,  Next: GFORTRAN_STDOUT_UNIT,  Prev: TMPDIR,  Up: Runtime
  
! 3.2 'GFORTRAN_STDIN_UNIT'--Unit number for standard input
  =========================================================
  
  This environment variable can be used to select the unit number
*************** default value is 5.
*** 1782,1788 ****
  
  File: gfortran.info,  Node: GFORTRAN_STDOUT_UNIT,  Next: GFORTRAN_STDERR_UNIT,  Prev: GFORTRAN_STDIN_UNIT,  Up: Runtime
  
! 3.3 `GFORTRAN_STDOUT_UNIT'--Unit number for standard output
  ===========================================================
  
  This environment variable can be used to select the unit number
--- 1774,1780 ----
  
  File: gfortran.info,  Node: GFORTRAN_STDOUT_UNIT,  Next: GFORTRAN_STDERR_UNIT,  Prev: GFORTRAN_STDIN_UNIT,  Up: Runtime
  
! 3.3 'GFORTRAN_STDOUT_UNIT'--Unit number for standard output
  ===========================================================
  
  This environment variable can be used to select the unit number
*************** default value is 6.
*** 1792,1798 ****
  
  File: gfortran.info,  Node: GFORTRAN_STDERR_UNIT,  Next: GFORTRAN_UNBUFFERED_ALL,  Prev: GFORTRAN_STDOUT_UNIT,  Up: Runtime
  
! 3.4 `GFORTRAN_STDERR_UNIT'--Unit number for standard error
  ==========================================================
  
  This environment variable can be used to select the unit number
--- 1784,1790 ----
  
  File: gfortran.info,  Node: GFORTRAN_STDERR_UNIT,  Next: GFORTRAN_UNBUFFERED_ALL,  Prev: GFORTRAN_STDOUT_UNIT,  Up: Runtime
  
! 3.4 'GFORTRAN_STDERR_UNIT'--Unit number for standard error
  ==========================================================
  
  This environment variable can be used to select the unit number
*************** default value is 0.
*** 1802,1864 ****
  
  File: gfortran.info,  Node: GFORTRAN_UNBUFFERED_ALL,  Next: GFORTRAN_UNBUFFERED_PRECONNECTED,  Prev: GFORTRAN_STDERR_UNIT,  Up: Runtime
  
! 3.5 `GFORTRAN_UNBUFFERED_ALL'--Do not buffer I/O on all units
  =============================================================
  
  This environment variable controls whether all I/O is unbuffered.  If
! the first letter is `y', `Y' or `1', all I/O is unbuffered.  This will
  slow down small sequential reads and writes.  If the first letter is
! `n', `N' or `0', I/O is buffered.  This is the default.
  
  
  File: gfortran.info,  Node: GFORTRAN_UNBUFFERED_PRECONNECTED,  Next: GFORTRAN_SHOW_LOCUS,  Prev: GFORTRAN_UNBUFFERED_ALL,  Up: Runtime
  
! 3.6 `GFORTRAN_UNBUFFERED_PRECONNECTED'--Do not buffer I/O on preconnected units
  ===============================================================================
  
! The environment variable named `GFORTRAN_UNBUFFERED_PRECONNECTED'
  controls whether I/O on a preconnected unit (i.e. STDOUT or STDERR) is
! unbuffered.  If the first letter is `y', `Y' or `1', I/O is unbuffered.
  This will slow down small sequential reads and writes.  If the first
! letter is `n', `N' or `0', I/O is buffered.  This is the default.
  
  
  File: gfortran.info,  Node: GFORTRAN_SHOW_LOCUS,  Next: GFORTRAN_OPTIONAL_PLUS,  Prev: GFORTRAN_UNBUFFERED_PRECONNECTED,  Up: Runtime
  
! 3.7 `GFORTRAN_SHOW_LOCUS'--Show location for runtime errors
  ===========================================================
  
! If the first letter is `y', `Y' or `1', filename and line numbers for
! runtime errors are printed.  If the first letter is `n', `N' or `0', do
  not print filename and line numbers for runtime errors.  The default is
  to print the location.
  
  
  File: gfortran.info,  Node: GFORTRAN_OPTIONAL_PLUS,  Next: GFORTRAN_DEFAULT_RECL,  Prev: GFORTRAN_SHOW_LOCUS,  Up: Runtime
  
! 3.8 `GFORTRAN_OPTIONAL_PLUS'--Print leading + where permitted
  =============================================================
  
! If the first letter is `y', `Y' or `1', a plus sign is printed where
! permitted by the Fortran standard.  If the first letter is `n', `N' or
! `0', a plus sign is not printed in most cases.  Default is not to print
  plus signs.
  
  
  File: gfortran.info,  Node: GFORTRAN_DEFAULT_RECL,  Next: GFORTRAN_LIST_SEPARATOR,  Prev: GFORTRAN_OPTIONAL_PLUS,  Up: Runtime
  
! 3.9 `GFORTRAN_DEFAULT_RECL'--Default record length for new files
  ================================================================
  
! This environment variable specifies the default record length, in
! bytes, for files which are opened without a `RECL' tag in the `OPEN'
! statement.  This must be a positive integer.  The default value is
! 1073741824 bytes (1 GB).
  
  
  File: gfortran.info,  Node: GFORTRAN_LIST_SEPARATOR,  Next: GFORTRAN_CONVERT_UNIT,  Prev: GFORTRAN_DEFAULT_RECL,  Up: Runtime
  
! 3.10 `GFORTRAN_LIST_SEPARATOR'--Separator for list output
  =========================================================
  
  This environment variable specifies the separator when writing
--- 1794,1856 ----
  
  File: gfortran.info,  Node: GFORTRAN_UNBUFFERED_ALL,  Next: GFORTRAN_UNBUFFERED_PRECONNECTED,  Prev: GFORTRAN_STDERR_UNIT,  Up: Runtime
  
! 3.5 'GFORTRAN_UNBUFFERED_ALL'--Do not buffer I/O on all units
  =============================================================
  
  This environment variable controls whether all I/O is unbuffered.  If
! the first letter is 'y', 'Y' or '1', all I/O is unbuffered.  This will
  slow down small sequential reads and writes.  If the first letter is
! 'n', 'N' or '0', I/O is buffered.  This is the default.
  
  
  File: gfortran.info,  Node: GFORTRAN_UNBUFFERED_PRECONNECTED,  Next: GFORTRAN_SHOW_LOCUS,  Prev: GFORTRAN_UNBUFFERED_ALL,  Up: Runtime
  
! 3.6 'GFORTRAN_UNBUFFERED_PRECONNECTED'--Do not buffer I/O on preconnected units
  ===============================================================================
  
! The environment variable named 'GFORTRAN_UNBUFFERED_PRECONNECTED'
  controls whether I/O on a preconnected unit (i.e. STDOUT or STDERR) is
! unbuffered.  If the first letter is 'y', 'Y' or '1', I/O is unbuffered.
  This will slow down small sequential reads and writes.  If the first
! letter is 'n', 'N' or '0', I/O is buffered.  This is the default.
  
  
  File: gfortran.info,  Node: GFORTRAN_SHOW_LOCUS,  Next: GFORTRAN_OPTIONAL_PLUS,  Prev: GFORTRAN_UNBUFFERED_PRECONNECTED,  Up: Runtime
  
! 3.7 'GFORTRAN_SHOW_LOCUS'--Show location for runtime errors
  ===========================================================
  
! If the first letter is 'y', 'Y' or '1', filename and line numbers for
! runtime errors are printed.  If the first letter is 'n', 'N' or '0', do
  not print filename and line numbers for runtime errors.  The default is
  to print the location.
  
  
  File: gfortran.info,  Node: GFORTRAN_OPTIONAL_PLUS,  Next: GFORTRAN_DEFAULT_RECL,  Prev: GFORTRAN_SHOW_LOCUS,  Up: Runtime
  
! 3.8 'GFORTRAN_OPTIONAL_PLUS'--Print leading + where permitted
  =============================================================
  
! If the first letter is 'y', 'Y' or '1', a plus sign is printed where
! permitted by the Fortran standard.  If the first letter is 'n', 'N' or
! '0', a plus sign is not printed in most cases.  Default is not to print
  plus signs.
  
  
  File: gfortran.info,  Node: GFORTRAN_DEFAULT_RECL,  Next: GFORTRAN_LIST_SEPARATOR,  Prev: GFORTRAN_OPTIONAL_PLUS,  Up: Runtime
  
! 3.9 'GFORTRAN_DEFAULT_RECL'--Default record length for new files
  ================================================================
  
! This environment variable specifies the default record length, in bytes,
! for files which are opened without a 'RECL' tag in the 'OPEN' statement.
! This must be a positive integer.  The default value is 1073741824 bytes
! (1 GB).
  
  
  File: gfortran.info,  Node: GFORTRAN_LIST_SEPARATOR,  Next: GFORTRAN_CONVERT_UNIT,  Prev: GFORTRAN_DEFAULT_RECL,  Up: Runtime
  
! 3.10 'GFORTRAN_LIST_SEPARATOR'--Separator for list output
  =========================================================
  
  This environment variable specifies the separator when writing
*************** list-directed output.  It may contain an
*** 1866,1920 ****
  one comma.  If you specify this on the command line, be sure to quote
  spaces, as in
       $ GFORTRAN_LIST_SEPARATOR='  ,  ' ./a.out
!    when `a.out' is the compiled Fortran program that you want to run.
  Default is a single space.
  
  
  File: gfortran.info,  Node: GFORTRAN_CONVERT_UNIT,  Next: GFORTRAN_ERROR_BACKTRACE,  Prev: GFORTRAN_LIST_SEPARATOR,  Up: Runtime
  
! 3.11 `GFORTRAN_CONVERT_UNIT'--Set endianness for unformatted I/O
  ================================================================
  
! By setting the `GFORTRAN_CONVERT_UNIT' variable, it is possible to
! change the representation of data for unformatted files.  The syntax
! for the `GFORTRAN_CONVERT_UNIT' variable is:
       GFORTRAN_CONVERT_UNIT: mode | mode ';' exception | exception ;
       mode: 'native' | 'swap' | 'big_endian' | 'little_endian' ;
       exception: mode ':' unit_list | unit_list ;
       unit_list: unit_spec | unit_list unit_spec ;
       unit_spec: INTEGER | INTEGER '-' INTEGER ;
!    The variable consists of an optional default mode, followed by a
! list of optional exceptions, which are separated by semicolons from the
  preceding default and each other.  Each exception consists of a format
! and a comma-separated list of units.  Valid values for the modes are
! the same as for the `CONVERT' specifier:
! 
!      `NATIVE' Use the native format.  This is the default.
! 
!      `SWAP' Swap between little- and big-endian.
! 
!      `LITTLE_ENDIAN' Use the little-endian format for unformatted files.
! 
!      `BIG_ENDIAN' Use the big-endian format for unformatted files.
!    A missing mode for an exception is taken to mean `BIG_ENDIAN'.
! Examples of values for `GFORTRAN_CONVERT_UNIT' are:
!      `'big_endian''  Do all unformatted I/O in big_endian mode.
  
!      `'little_endian;native:10-20,25''  Do all unformatted I/O in
       little_endian mode, except for units 10 to 20 and 25, which are in
       native format.
! 
!      `'10-20''  Units 10 to 20 are big-endian, the rest is native.
  
     Setting the environment variables should be done on the command line
! or via the `export' command for `sh'-compatible shells and via `setenv'
! for `csh'-compatible shells.
  
!    Example for `sh':
       $ gfortran foo.f90
       $ GFORTRAN_CONVERT_UNIT='big_endian;native:10-20' ./a.out
  
!    Example code for `csh':
       % gfortran foo.f90
       % setenv GFORTRAN_CONVERT_UNIT 'big_endian;native:10-20'
       % ./a.out
--- 1858,1907 ----
  one comma.  If you specify this on the command line, be sure to quote
  spaces, as in
       $ GFORTRAN_LIST_SEPARATOR='  ,  ' ./a.out
!    when 'a.out' is the compiled Fortran program that you want to run.
  Default is a single space.
  
  
  File: gfortran.info,  Node: GFORTRAN_CONVERT_UNIT,  Next: GFORTRAN_ERROR_BACKTRACE,  Prev: GFORTRAN_LIST_SEPARATOR,  Up: Runtime
  
! 3.11 'GFORTRAN_CONVERT_UNIT'--Set endianness for unformatted I/O
  ================================================================
  
! By setting the 'GFORTRAN_CONVERT_UNIT' variable, it is possible to
! change the representation of data for unformatted files.  The syntax for
! the 'GFORTRAN_CONVERT_UNIT' variable is:
       GFORTRAN_CONVERT_UNIT: mode | mode ';' exception | exception ;
       mode: 'native' | 'swap' | 'big_endian' | 'little_endian' ;
       exception: mode ':' unit_list | unit_list ;
       unit_list: unit_spec | unit_list unit_spec ;
       unit_spec: INTEGER | INTEGER '-' INTEGER ;
!    The variable consists of an optional default mode, followed by a list
! of optional exceptions, which are separated by semicolons from the
  preceding default and each other.  Each exception consists of a format
! and a comma-separated list of units.  Valid values for the modes are the
! same as for the 'CONVERT' specifier:
  
!      'NATIVE' Use the native format.  This is the default.
!      'SWAP' Swap between little- and big-endian.
!      'LITTLE_ENDIAN' Use the little-endian format for unformatted files.
!      'BIG_ENDIAN' Use the big-endian format for unformatted files.
!    A missing mode for an exception is taken to mean 'BIG_ENDIAN'.
! Examples of values for 'GFORTRAN_CONVERT_UNIT' are:
!      ''big_endian'' Do all unformatted I/O in big_endian mode.
!      ''little_endian;native:10-20,25'' Do all unformatted I/O in
       little_endian mode, except for units 10 to 20 and 25, which are in
       native format.
!      ''10-20'' Units 10 to 20 are big-endian, the rest is native.
  
     Setting the environment variables should be done on the command line
! or via the 'export' command for 'sh'-compatible shells and via 'setenv'
! for 'csh'-compatible shells.
  
!    Example for 'sh':
       $ gfortran foo.f90
       $ GFORTRAN_CONVERT_UNIT='big_endian;native:10-20' ./a.out
  
!    Example code for 'csh':
       % gfortran foo.f90
       % setenv GFORTRAN_CONVERT_UNIT 'big_endian;native:10-20'
       % ./a.out
*************** for `csh'-compatible shells.
*** 1923,1932 ****
  carries a significant speed overhead.  If speed in this area matters to
  you, it is best if you use this only for data that needs to be portable.
  
!    *Note CONVERT specifier::, for an alternative way to specify the
! data representation for unformatted files.  *Note Runtime Options::, for
  setting a default data representation for the whole program.  The
! `CONVERT' specifier overrides the `-fconvert' compile options.
  
     _Note that the values specified via the GFORTRAN_CONVERT_UNIT
  environment variable will override the CONVERT specifier in the open
--- 1910,1919 ----
  carries a significant speed overhead.  If speed in this area matters to
  you, it is best if you use this only for data that needs to be portable.
  
!    *Note CONVERT specifier::, for an alternative way to specify the data
! representation for unformatted files.  *Note Runtime Options::, for
  setting a default data representation for the whole program.  The
! 'CONVERT' specifier overrides the '-fconvert' compile options.
  
     _Note that the values specified via the GFORTRAN_CONVERT_UNIT
  environment variable will override the CONVERT specifier in the open
*************** not have the source code of their progra
*** 1936,1949 ****
  
  File: gfortran.info,  Node: GFORTRAN_ERROR_BACKTRACE,  Prev: GFORTRAN_CONVERT_UNIT,  Up: Runtime
  
! 3.12 `GFORTRAN_ERROR_BACKTRACE'--Show backtrace on run-time errors
  ==================================================================
  
! If the `GFORTRAN_ERROR_BACKTRACE' variable is set to `y', `Y' or `1'
  (only the first letter is relevant) then a backtrace is printed when a
  serious run-time error occurs.  To disable the backtracing, set the
! variable to `n', `N', `0'.  Default is to print a backtrace unless the
! `-fno-backtrace' compile option was used.
  
  
  File: gfortran.info,  Node: Fortran 2003 and 2008 status,  Next: Compiler Characteristics,  Prev: Runtime,  Up: Top
--- 1923,1936 ----
  
  File: gfortran.info,  Node: GFORTRAN_ERROR_BACKTRACE,  Prev: GFORTRAN_CONVERT_UNIT,  Up: Runtime
  
! 3.12 'GFORTRAN_ERROR_BACKTRACE'--Show backtrace on run-time errors
  ==================================================================
  
! If the 'GFORTRAN_ERROR_BACKTRACE' variable is set to 'y', 'Y' or '1'
  (only the first letter is relevant) then a backtrace is printed when a
  serious run-time error occurs.  To disable the backtracing, set the
! variable to 'n', 'N', '0'.  Default is to print a backtrace unless the
! '-fno-backtrace' compile option was used.
  
  
  File: gfortran.info,  Node: Fortran 2003 and 2008 status,  Next: Compiler Characteristics,  Prev: Runtime,  Up: Top
*************** can be found below.  See also the wiki p
*** 1969,2099 ****
  (https://gcc.gnu.org/wiki/Fortran2003) about Fortran 2003.
  
     * Procedure pointers including procedure-pointer components with
!      `PASS' attribute.
  
     * Procedures which are bound to a derived type (type-bound
!      procedures) including `PASS', `PROCEDURE' and `GENERIC', and
       operators bound to a type.
  
     * Abstract interfaces and type extension with the possibility to
       override type-bound procedures or to have deferred binding.
  
!    * Polymorphic entities ("`CLASS'") for derived types and unlimited
!      polymorphism ("`CLASS(*)'") - including `SAME_TYPE_AS',
!      `EXTENDS_TYPE_OF' and `SELECT TYPE' for scalars and arrays and
       finalization.
  
     * Generic interface names, which have the same name as derived types,
!      are now supported. This allows one to write constructor functions.
       Note that Fortran does not support static constructor functions.
       For static variables, only default initialization or
       structure-constructor initialization are available.
  
!    * The `ASSOCIATE' construct.
  
     * Interoperability with C including enumerations,
  
     * In structure constructors the components with default values may be
       omitted.
  
!    * Extensions to the `ALLOCATE' statement, allowing for a
       type-specification with type parameter and for allocation and
!      initialization from a `SOURCE=' expression; `ALLOCATE' and
!      `DEALLOCATE' optionally return an error message string via
!      `ERRMSG='.
  
     * Reallocation on assignment: If an intrinsic assignment is used, an
       allocatable variable on the left-hand side is automatically
       allocated (if unallocated) or reallocated (if the shape is
!      different). Currently, scalar deferred character length left-hand
       sides are correctly handled but arrays are not yet fully
       implemented.
  
     * Deferred-length character variables and scalar deferred-length
!      character components of derived types are supported. (Note that
       array-valued compoents are not yet implemented.)
  
!    * Transferring of allocations via `MOVE_ALLOC'.
  
!    * The `PRIVATE' and `PUBLIC' attributes may be given individually to
       derived-type components.
  
     * In pointer assignments, the lower bound may be specified and the
       remapping of elements is supported.
  
!    * For pointers an `INTENT' may be specified which affect the
       association status not the value of the pointer target.
  
!    * Intrinsics `command_argument_count', `get_command',
!      `get_command_argument', and `get_environment_variable'.
  
!    * Support for Unicode characters (ISO 10646) and UTF-8, including
!      the `SELECTED_CHAR_KIND' and `NEW_LINE' intrinsic functions.
  
     * Support for binary, octal and hexadecimal (BOZ) constants in the
!      intrinsic functions `INT', `REAL', `CMPLX' and `DBLE'.
  
     * Support for namelist variables with allocatable and pointer
       attribute and nonconstant length type parameter.
  
!    * Array constructors using square brackets.  That is, `[...]' rather
!      than `(/.../)'.  Type-specification for array constructors like
!      `(/ some-type :: ... /)'.
  
     * Extensions to the specification and initialization expressions,
       including the support for intrinsics with real and complex
       arguments.
  
!    * Support for the asynchronous input/output syntax; however, the
!      data transfer is currently always synchronously performed.
  
!    * `FLUSH' statement.
  
!    * `IOMSG=' specifier for I/O statements.
  
!    * Support for the declaration of enumeration constants via the
!      `ENUM' and `ENUMERATOR' statements.  Interoperability with `gcc'
!      is guaranteed also for the case where the `-fshort-enums' command
!      line option is given.
  
     * TR 15581:
!         * `ALLOCATABLE' dummy arguments.
! 
!         * `ALLOCATABLE' function results
! 
!         * `ALLOCATABLE' components of derived types
  
!    * The `OPEN' statement supports the `ACCESS='STREAM'' specifier,
       allowing I/O without any record structure.
  
     * Namelist input/output for internal files.
  
     * Minor I/O features: Rounding during formatted output, using of a
       decimal comma instead of a decimal point, setting whether a plus
!      sign should appear for positive numbers. On systems where `strtod'
       honours the rounding mode, the rounding mode is also supported for
       input.
  
!    * The `PROTECTED' statement and attribute.
  
!    * The `VALUE' statement and attribute.
  
!    * The `VOLATILE' statement and attribute.
  
!    * The `IMPORT' statement, allowing to import host-associated derived
       types.
  
!    * The intrinsic modules `ISO_FORTRAN_ENVIRONMENT' is supported,
!      which contains parameters of the I/O units, storage sizes.
!      Additionally, procedures for C interoperability are available in
!      the `ISO_C_BINDING' module.
! 
!    * `USE' statement with `INTRINSIC' and `NON_INTRINSIC' attribute;
!      supported intrinsic modules: `ISO_FORTRAN_ENV', `ISO_C_BINDING',
!      `OMP_LIB' and `OMP_LIB_KINDS', and `OPENACC'.
  
!    * Renaming of operators in the `USE' statement.
  
  
  
  File: gfortran.info,  Node: Fortran 2008 status,  Next: TS 29113 status,  Prev: Fortran 2003 status,  Up: Fortran 2003 and 2008 status
--- 1956,2083 ----
  (https://gcc.gnu.org/wiki/Fortran2003) about Fortran 2003.
  
     * Procedure pointers including procedure-pointer components with
!      'PASS' attribute.
  
     * Procedures which are bound to a derived type (type-bound
!      procedures) including 'PASS', 'PROCEDURE' and 'GENERIC', and
       operators bound to a type.
  
     * Abstract interfaces and type extension with the possibility to
       override type-bound procedures or to have deferred binding.
  
!    * Polymorphic entities ("'CLASS'") for derived types and unlimited
!      polymorphism ("'CLASS(*)'") - including 'SAME_TYPE_AS',
!      'EXTENDS_TYPE_OF' and 'SELECT TYPE' for scalars and arrays and
       finalization.
  
     * Generic interface names, which have the same name as derived types,
!      are now supported.  This allows one to write constructor functions.
       Note that Fortran does not support static constructor functions.
       For static variables, only default initialization or
       structure-constructor initialization are available.
  
!    * The 'ASSOCIATE' construct.
  
     * Interoperability with C including enumerations,
  
     * In structure constructors the components with default values may be
       omitted.
  
!    * Extensions to the 'ALLOCATE' statement, allowing for a
       type-specification with type parameter and for allocation and
!      initialization from a 'SOURCE=' expression; 'ALLOCATE' and
!      'DEALLOCATE' optionally return an error message string via
!      'ERRMSG='.
  
     * Reallocation on assignment: If an intrinsic assignment is used, an
       allocatable variable on the left-hand side is automatically
       allocated (if unallocated) or reallocated (if the shape is
!      different).  Currently, scalar deferred character length left-hand
       sides are correctly handled but arrays are not yet fully
       implemented.
  
     * Deferred-length character variables and scalar deferred-length
!      character components of derived types are supported.  (Note that
       array-valued compoents are not yet implemented.)
  
!    * Transferring of allocations via 'MOVE_ALLOC'.
  
!    * The 'PRIVATE' and 'PUBLIC' attributes may be given individually to
       derived-type components.
  
     * In pointer assignments, the lower bound may be specified and the
       remapping of elements is supported.
  
!    * For pointers an 'INTENT' may be specified which affect the
       association status not the value of the pointer target.
  
!    * Intrinsics 'command_argument_count', 'get_command',
!      'get_command_argument', and 'get_environment_variable'.
  
!    * Support for Unicode characters (ISO 10646) and UTF-8, including the
!      'SELECTED_CHAR_KIND' and 'NEW_LINE' intrinsic functions.
  
     * Support for binary, octal and hexadecimal (BOZ) constants in the
!      intrinsic functions 'INT', 'REAL', 'CMPLX' and 'DBLE'.
  
     * Support for namelist variables with allocatable and pointer
       attribute and nonconstant length type parameter.
  
!    * Array constructors using square brackets.  That is, '[...]' rather
!      than '(/.../)'.  Type-specification for array constructors like '(/
!      some-type :: ... /)'.
  
     * Extensions to the specification and initialization expressions,
       including the support for intrinsics with real and complex
       arguments.
  
!    * Support for the asynchronous input/output syntax; however, the data
!      transfer is currently always synchronously performed.
  
!    * 'FLUSH' statement.
  
!    * 'IOMSG=' specifier for I/O statements.
  
!    * Support for the declaration of enumeration constants via the 'ENUM'
!      and 'ENUMERATOR' statements.  Interoperability with 'gcc' is
!      guaranteed also for the case where the '-fshort-enums' command line
!      option is given.
  
     * TR 15581:
!         * 'ALLOCATABLE' dummy arguments.
!         * 'ALLOCATABLE' function results
!         * 'ALLOCATABLE' components of derived types
  
!    * The 'OPEN' statement supports the 'ACCESS='STREAM'' specifier,
       allowing I/O without any record structure.
  
     * Namelist input/output for internal files.
  
     * Minor I/O features: Rounding during formatted output, using of a
       decimal comma instead of a decimal point, setting whether a plus
!      sign should appear for positive numbers.  On systems where 'strtod'
       honours the rounding mode, the rounding mode is also supported for
       input.
  
!    * The 'PROTECTED' statement and attribute.
  
!    * The 'VALUE' statement and attribute.
  
!    * The 'VOLATILE' statement and attribute.
  
!    * The 'IMPORT' statement, allowing to import host-associated derived
       types.
  
!    * The intrinsic modules 'ISO_FORTRAN_ENVIRONMENT' is supported, which
!      contains parameters of the I/O units, storage sizes.  Additionally,
!      procedures for C interoperability are available in the
!      'ISO_C_BINDING' module.
  
!    * 'USE' statement with 'INTRINSIC' and 'NON_INTRINSIC' attribute;
!      supported intrinsic modules: 'ISO_FORTRAN_ENV', 'ISO_C_BINDING',
!      'OMP_LIB' and 'OMP_LIB_KINDS', and 'OPENACC'.
  
+    * Renaming of operators in the 'USE' statement.
  
  
  File: gfortran.info,  Node: Fortran 2008 status,  Next: TS 29113 status,  Prev: Fortran 2003 status,  Up: Fortran 2003 and 2008 status
*************** informally known as Fortran 2008.  The o
*** 2106,2115 ****
  from International Organization for Standardization (ISO) or its
  national member organizations.  The the final draft (FDIS) can be
  downloaded free of charge from
! `http://www.nag.co.uk/sc22wg5/links.html'.  Fortran is developed by the
  Working Group 5 of Sub-Committee 22 of the Joint Technical Committee 1
  of the International Organization for Standardization and the
! International Electrotechnical Commission (IEC).  This group is known as
  WG5 (http://www.nag.co.uk/sc22wg5/).
  
     The GNU Fortran compiler supports several of the new features of
--- 2090,2099 ----
  from International Organization for Standardization (ISO) or its
  national member organizations.  The the final draft (FDIS) can be
  downloaded free of charge from
! <http://www.nag.co.uk/sc22wg5/links.html>.  Fortran is developed by the
  Working Group 5 of Sub-Committee 22 of the Joint Technical Committee 1
  of the International Organization for Standardization and the
! International Electrotechnical Commission (IEC). This group is known as
  WG5 (http://www.nag.co.uk/sc22wg5/).
  
     The GNU Fortran compiler supports several of the new features of
*************** Fortran 2008; the wiki (https://gcc.gnu.
*** 2117,2218 ****
  some information about the current Fortran 2008 implementation status.
  In particular, the following is implemented.
  
!    * The `-std=f2008' option and support for the file extensions `.f08'
!      and `.F08'.
  
!    * The `OPEN' statement now supports the `NEWUNIT=' option, which
       returns a unique file unit, thus preventing inadvertent use of the
       same unit in different parts of the program.
  
!    * The `g0' format descriptor and unlimited format items.
  
!    * The mathematical intrinsics `ASINH', `ACOSH', `ATANH', `ERF',
!      `ERFC', `GAMMA', `LOG_GAMMA', `BESSEL_J0', `BESSEL_J1',
!      `BESSEL_JN', `BESSEL_Y0', `BESSEL_Y1', `BESSEL_YN', `HYPOT',
!      `NORM2', and `ERFC_SCALED'.
  
!    * Using complex arguments with `TAN', `SINH', `COSH', `TANH',
!      `ASIN', `ACOS', and `ATAN' is now possible; `ATAN'(Y,X) is now an
!      alias for `ATAN2'(Y,X).
  
!    * Support of the `PARITY' intrinsic functions.
  
!    * The following bit intrinsics: `LEADZ' and `TRAILZ' for counting
!      the number of leading and trailing zero bits, `POPCNT' and
!      `POPPAR' for counting the number of one bits and returning the
!      parity; `BGE', `BGT', `BLE', and `BLT' for bitwise comparisons;
!      `DSHIFTL' and `DSHIFTR' for combined left and right shifts,
!      `MASKL' and `MASKR' for simple left and right justified masks,
!      `MERGE_BITS' for a bitwise merge using a mask, `SHIFTA', `SHIFTL'
!      and `SHIFTR' for shift operations, and the transformational bit
!      intrinsics `IALL', `IANY' and `IPARITY'.
  
!    * Support of the `EXECUTE_COMMAND_LINE' intrinsic subroutine.
  
!    * Support for the `STORAGE_SIZE' intrinsic inquiry function.
  
!    * The `INT{8,16,32}' and `REAL{32,64,128}' kind type parameters and
!      the array-valued named constants `INTEGER_KINDS', `LOGICAL_KINDS',
!      `REAL_KINDS' and `CHARACTER_KINDS' of the intrinsic module
!      `ISO_FORTRAN_ENV'.
  
!    * The module procedures `C_SIZEOF' of the intrinsic module
!      `ISO_C_BINDINGS' and `COMPILER_VERSION' and `COMPILER_OPTIONS' of
!      `ISO_FORTRAN_ENV'.
  
!    * Coarray support for serial programs with `-fcoarray=single' flag
       and experimental support for multiple images with the
!      `-fcoarray=lib' flag.
  
!    * Submodules are supported. It should noted that `MODULEs' do not
!      produce the smod file needed by the descendent `SUBMODULEs' unless
!      they contain at least one `MODULE PROCEDURE' interface. The reason
!      for this is that `SUBMODULEs' are useless without `MODULE
!      PROCEDUREs'. See http://j3-fortran.org/doc/meeting/207/15-209.txt
!      for a discussion and a draft interpretation. Adopting this
       interpretation has the advantage that code that does not use
       submodules does not generate smod files.
  
!    * The `DO CONCURRENT' construct is supported.
  
!    * The `BLOCK' construct is supported.
  
!    * The `STOP' and the new `ERROR STOP' statements now support all
!      constant expressions. Both show the signals which were signaling
       at termination.
  
!    * Support for the `CONTIGUOUS' attribute.
  
!    * Support for `ALLOCATE' with `MOLD'.
  
!    * Support for the `IMPURE' attribute for procedures, which allows
!      for `ELEMENTAL' procedures without the restrictions of `PURE'.
  
!    * Null pointers (including `NULL()') and not-allocated variables can
       be used as actual argument to optional non-pointer, non-allocatable
       dummy arguments, denoting an absent argument.
  
!    * Non-pointer variables with `TARGET' attribute can be used as
!      actual argument to `POINTER' dummies with `INTENT(IN)'.
  
     * Pointers including procedure pointers and those in a derived type
       (pointer components) can now be initialized by a target instead of
!      only by `NULL'.
  
!    * The `EXIT' statement (with construct-name) can be now be used to
!      leave not only the `DO' but also the `ASSOCIATE', `BLOCK', `IF',
!      `SELECT CASE' and `SELECT TYPE' constructs.
  
     * Internal procedures can now be used as actual argument.
  
!    * Minor features: obsolesce diagnostics for `ENTRY' with
!      `-std=f2008'; a line may start with a semicolon; for internal and
!      module procedures `END' can be used instead of `END SUBROUTINE'
!      and `END FUNCTION'; `SELECTED_REAL_KIND' now also takes a `RADIX'
       argument; intrinsic types are supported for
!      `TYPE'(INTRINSIC-TYPE-SPEC); multiple type-bound procedures can be
!      declared in a single `PROCEDURE' statement; implied-shape arrays
!      are supported for named constants (`PARAMETER').
  
  
  File: gfortran.info,  Node: TS 29113 status,  Next: TS 18508 status,  Prev: Fortran 2008 status,  Up: Fortran 2003 and 2008 status
--- 2101,2202 ----
  some information about the current Fortran 2008 implementation status.
  In particular, the following is implemented.
  
!    * The '-std=f2008' option and support for the file extensions '.f08'
!      and '.F08'.
  
!    * The 'OPEN' statement now supports the 'NEWUNIT=' option, which
       returns a unique file unit, thus preventing inadvertent use of the
       same unit in different parts of the program.
  
!    * The 'g0' format descriptor and unlimited format items.
  
!    * The mathematical intrinsics 'ASINH', 'ACOSH', 'ATANH', 'ERF',
!      'ERFC', 'GAMMA', 'LOG_GAMMA', 'BESSEL_J0', 'BESSEL_J1',
!      'BESSEL_JN', 'BESSEL_Y0', 'BESSEL_Y1', 'BESSEL_YN', 'HYPOT',
!      'NORM2', and 'ERFC_SCALED'.
  
!    * Using complex arguments with 'TAN', 'SINH', 'COSH', 'TANH', 'ASIN',
!      'ACOS', and 'ATAN' is now possible; 'ATAN'(Y,X) is now an alias for
!      'ATAN2'(Y,X).
  
!    * Support of the 'PARITY' intrinsic functions.
  
!    * The following bit intrinsics: 'LEADZ' and 'TRAILZ' for counting the
!      number of leading and trailing zero bits, 'POPCNT' and 'POPPAR' for
!      counting the number of one bits and returning the parity; 'BGE',
!      'BGT', 'BLE', and 'BLT' for bitwise comparisons; 'DSHIFTL' and
!      'DSHIFTR' for combined left and right shifts, 'MASKL' and 'MASKR'
!      for simple left and right justified masks, 'MERGE_BITS' for a
!      bitwise merge using a mask, 'SHIFTA', 'SHIFTL' and 'SHIFTR' for
!      shift operations, and the transformational bit intrinsics 'IALL',
!      'IANY' and 'IPARITY'.
  
!    * Support of the 'EXECUTE_COMMAND_LINE' intrinsic subroutine.
  
!    * Support for the 'STORAGE_SIZE' intrinsic inquiry function.
  
!    * The 'INT{8,16,32}' and 'REAL{32,64,128}' kind type parameters and
!      the array-valued named constants 'INTEGER_KINDS', 'LOGICAL_KINDS',
!      'REAL_KINDS' and 'CHARACTER_KINDS' of the intrinsic module
!      'ISO_FORTRAN_ENV'.
  
!    * The module procedures 'C_SIZEOF' of the intrinsic module
!      'ISO_C_BINDINGS' and 'COMPILER_VERSION' and 'COMPILER_OPTIONS' of
!      'ISO_FORTRAN_ENV'.
  
!    * Coarray support for serial programs with '-fcoarray=single' flag
       and experimental support for multiple images with the
!      '-fcoarray=lib' flag.
  
!    * Submodules are supported.  It should noted that 'MODULEs' do not
!      produce the smod file needed by the descendent 'SUBMODULEs' unless
!      they contain at least one 'MODULE PROCEDURE' interface.  The reason
!      for this is that 'SUBMODULEs' are useless without 'MODULE
!      PROCEDUREs'.  See http://j3-fortran.org/doc/meeting/207/15-209.txt
!      for a discussion and a draft interpretation.  Adopting this
       interpretation has the advantage that code that does not use
       submodules does not generate smod files.
  
!    * The 'DO CONCURRENT' construct is supported.
  
!    * The 'BLOCK' construct is supported.
  
!    * The 'STOP' and the new 'ERROR STOP' statements now support all
!      constant expressions.  Both show the signals which were signaling
       at termination.
  
!    * Support for the 'CONTIGUOUS' attribute.
  
!    * Support for 'ALLOCATE' with 'MOLD'.
  
!    * Support for the 'IMPURE' attribute for procedures, which allows for
!      'ELEMENTAL' procedures without the restrictions of 'PURE'.
  
!    * Null pointers (including 'NULL()') and not-allocated variables can
       be used as actual argument to optional non-pointer, non-allocatable
       dummy arguments, denoting an absent argument.
  
!    * Non-pointer variables with 'TARGET' attribute can be used as actual
!      argument to 'POINTER' dummies with 'INTENT(IN)'.
  
     * Pointers including procedure pointers and those in a derived type
       (pointer components) can now be initialized by a target instead of
!      only by 'NULL'.
  
!    * The 'EXIT' statement (with construct-name) can be now be used to
!      leave not only the 'DO' but also the 'ASSOCIATE', 'BLOCK', 'IF',
!      'SELECT CASE' and 'SELECT TYPE' constructs.
  
     * Internal procedures can now be used as actual argument.
  
!    * Minor features: obsolesce diagnostics for 'ENTRY' with
!      '-std=f2008'; a line may start with a semicolon; for internal and
!      module procedures 'END' can be used instead of 'END SUBROUTINE' and
!      'END FUNCTION'; 'SELECTED_REAL_KIND' now also takes a 'RADIX'
       argument; intrinsic types are supported for
!      'TYPE'(INTRINSIC-TYPE-SPEC); multiple type-bound procedures can be
!      declared in a single 'PROCEDURE' statement; implied-shape arrays
!      are supported for named constants ('PARAMETER').
  
  
  File: gfortran.info,  Node: TS 29113 status,  Next: TS 18508 status,  Prev: Fortran 2008 status,  Up: Fortran 2003 and 2008 status
*************** following is implemented.
*** 2228,2246 ****
  
     See also *note Further Interoperability of Fortran with C::.
  
!    * The `-std=f2008ts' option.
  
!    * The `OPTIONAL' attribute is allowed for dummy arguments of
!      `BIND(C) procedures.'
  
!    * The `RANK' intrinsic is supported.
  
!    * GNU Fortran's implementation for variables with `ASYNCHRONOUS'
       attribute is compatible with TS 29113.
  
!    * Assumed types (`TYPE(*)'.
  
!    * Assumed-rank (`DIMENSION(..)'). However, the array descriptor of
       the TS is not yet supported.
  
  
--- 2212,2230 ----
  
     See also *note Further Interoperability of Fortran with C::.
  
!    * The '-std=f2008ts' option.
  
!    * The 'OPTIONAL' attribute is allowed for dummy arguments of 'BIND(C)
!      procedures.'
  
!    * The 'RANK' intrinsic is supported.
  
!    * GNU Fortran's implementation for variables with 'ASYNCHRONOUS'
       attribute is compatible with TS 29113.
  
!    * Assumed types ('TYPE(*)'.
  
!    * Assumed-rank ('DIMENSION(..)').  However, the array descriptor of
       the TS is not yet supported.
  
  
*************** Specification 18508 on Additional Parall
*** 2255,2266 ****
     * The new atomic ADD, CAS, FETCH and ADD/OR/XOR, OR and XOR
       intrinsics.
  
!    * The `CO_MIN' and `CO_MAX' and `SUM' reduction intrinsics.  And the
!      `CO_BROADCAST' and `CO_REDUCE' intrinsic, except that those do not
       support polymorphic types or types with allocatable, pointer or
       polymorphic components.
  
!    * Events (`EVENT POST', `EVENT WAIT', `EVENT_QUERY')
  
  
  File: gfortran.info,  Node: Compiler Characteristics,  Next: Extensions,  Prev: Fortran 2003 and 2008 status,  Up: Top
--- 2239,2250 ----
     * The new atomic ADD, CAS, FETCH and ADD/OR/XOR, OR and XOR
       intrinsics.
  
!    * The 'CO_MIN' and 'CO_MAX' and 'SUM' reduction intrinsics.  And the
!      'CO_BROADCAST' and 'CO_REDUCE' intrinsic, except that those do not
       support polymorphic types or types with allocatable, pointer or
       polymorphic components.
  
!    * Events ('EVENT POST', 'EVENT WAIT', 'EVENT_QUERY')
  
  
  File: gfortran.info,  Node: Compiler Characteristics,  Next: Extensions,  Prev: Fortran 2003 and 2008 status,  Up: Top
*************** File: gfortran.info,  Node: KIND Type Pa
*** 2287,2328 ****
  5.1 KIND Type Parameters
  ========================
  
! The `KIND' type parameters supported by GNU Fortran for the primitive
  data types are:
  
! `INTEGER'
       1, 2, 4, 8*, 16*, default: 4**
  
! `LOGICAL'
       1, 2, 4, 8*, 16*, default: 4**
  
! `REAL'
       4, 8, 10*, 16*, default: 4***
  
! `COMPLEX'
       4, 8, 10*, 16*, default: 4***
  
! `DOUBLE PRECISION'
       4, 8, 10*, 16*, default: 8***
  
! `CHARACTER'
       1, 4, default: 1
  
- 
  * not available on all systems
! ** unless `-fdefault-integer-8' is used
! *** unless `-fdefault-real-8' is used (see *note Fortran Dialect
  Options::)
  
! The `KIND' value matches the storage size in bytes, except for
! `COMPLEX' where the storage size is twice as much (or both real and
! imaginary part are a real value of the given size).  It is recommended
! to use the *note SELECTED_CHAR_KIND::, *note SELECTED_INT_KIND:: and
! *note SELECTED_REAL_KIND:: intrinsics or the `INT8', `INT16', `INT32',
! `INT64', `REAL32', `REAL64', and `REAL128' parameters of the
! `ISO_FORTRAN_ENV' module instead of the concrete values.  The available
! kind parameters can be found in the constant arrays `CHARACTER_KINDS',
! `INTEGER_KINDS', `LOGICAL_KINDS' and `REAL_KINDS' in the *note
  ISO_FORTRAN_ENV:: module.  For C interoperability, the kind parameters
  of the *note ISO_C_BINDING:: module should be used.
  
--- 2271,2311 ----
  5.1 KIND Type Parameters
  ========================
  
! The 'KIND' type parameters supported by GNU Fortran for the primitive
  data types are:
  
! 'INTEGER'
       1, 2, 4, 8*, 16*, default: 4**
  
! 'LOGICAL'
       1, 2, 4, 8*, 16*, default: 4**
  
! 'REAL'
       4, 8, 10*, 16*, default: 4***
  
! 'COMPLEX'
       4, 8, 10*, 16*, default: 4***
  
! 'DOUBLE PRECISION'
       4, 8, 10*, 16*, default: 8***
  
! 'CHARACTER'
       1, 4, default: 1
  
  * not available on all systems
! ** unless '-fdefault-integer-8' is used
! *** unless '-fdefault-real-8' is used (see *note Fortran Dialect
  Options::)
  
! The 'KIND' value matches the storage size in bytes, except for 'COMPLEX'
! where the storage size is twice as much (or both real and imaginary part
! are a real value of the given size).  It is recommended to use the *note
! SELECTED_CHAR_KIND::, *note SELECTED_INT_KIND:: and *note
! SELECTED_REAL_KIND:: intrinsics or the 'INT8', 'INT16', 'INT32',
! 'INT64', 'REAL32', 'REAL64', and 'REAL128' parameters of the
! 'ISO_FORTRAN_ENV' module instead of the concrete values.  The available
! kind parameters can be found in the constant arrays 'CHARACTER_KINDS',
! 'INTEGER_KINDS', 'LOGICAL_KINDS' and 'REAL_KINDS' in the *note
  ISO_FORTRAN_ENV:: module.  For C interoperability, the kind parameters
  of the *note ISO_C_BINDING:: module should be used.
  
*************** File: gfortran.info,  Node: Internal rep
*** 2332,2345 ****
  5.2 Internal representation of LOGICAL variables
  ================================================
  
! The Fortran standard does not specify how variables of `LOGICAL' type
! are represented, beyond requiring that `LOGICAL' variables of default
! kind have the same storage size as default `INTEGER' and `REAL'
  variables.  The GNU Fortran internal representation is as follows.
  
!    A `LOGICAL(KIND=N)' variable is represented as an `INTEGER(KIND=N)'
! variable, however, with only two permissible values: `1' for `.TRUE.'
! and `0' for `.FALSE.'.  Any other integer value results in undefined
  behavior.
  
     See also *note Argument passing conventions:: and *note
--- 2315,2328 ----
  5.2 Internal representation of LOGICAL variables
  ================================================
  
! The Fortran standard does not specify how variables of 'LOGICAL' type
! are represented, beyond requiring that 'LOGICAL' variables of default
! kind have the same storage size as default 'INTEGER' and 'REAL'
  variables.  The GNU Fortran internal representation is as follows.
  
!    A 'LOGICAL(KIND=N)' variable is represented as an 'INTEGER(KIND=N)'
! variable, however, with only two permissible values: '1' for '.TRUE.'
! and '0' for '.FALSE.'.  Any other integer value results in undefined
  behavior.
  
     See also *note Argument passing conventions:: and *note
*************** File: gfortran.info,  Node: Thread-safet
*** 2351,2395 ****
  5.3 Thread-safety of the runtime library
  ========================================
  
! GNU Fortran can be used in programs with multiple threads, e.g. by
! using OpenMP, by calling OS thread handling functions via the
! `ISO_C_BINDING' facility, or by GNU Fortran compiled library code being
! called from a multi-threaded program.
  
!    The GNU Fortran runtime library, (`libgfortran'), supports being
  called concurrently from multiple threads with the following exceptions.
  
!    During library initialization, the C `getenv' function is used,
! which need not be thread-safe.  Similarly, the `getenv' function is
! used to implement the `GET_ENVIRONMENT_VARIABLE' and `GETENV'
! intrinsics.  It is the responsibility of the user to ensure that the
! environment is not being updated concurrently when any of these actions
! are taking place.
  
!    The `EXECUTE_COMMAND_LINE' and `SYSTEM' intrinsics are implemented
! with the `system' function, which need not be thread-safe.  It is the
! responsibility of the user to ensure that `system' is not called
  concurrently.
  
     For platforms not supporting thread-safe POSIX functions, further
! functionality might not be thread-safe.  For details, please consult
! the documentation for your operating system.
  
     The GNU Fortran runtime library uses various C library functions that
! depend on the locale, such as `strtod' and `snprintf'.  In order to
! work correctly in locale-aware programs that set the locale using
! `setlocale', the locale is reset to the default "C" locale while
! executing a formatted `READ' or `WRITE' statement.  On targets
  supporting the POSIX 2008 per-thread locale functions (e.g.
! `newlocale', `uselocale', `freelocale'), these are used and thus the
! global locale set using `setlocale' or the per-thread locales in other
  threads are not affected.  However, on targets lacking this
  functionality, the global LC_NUMERIC locale is set to "C" during the
! formatted I/O.  Thus, on such targets it's not safe to call `setlocale'
! concurrently from another thread while a Fortran formatted I/O
! operation is in progress.  Also, other threads doing something
! dependent on the LC_NUMERIC locale might not work correctly if a
! formatted I/O operation is in progress in another thread.
  
  
  File: gfortran.info,  Node: Data consistency and durability,  Next: Files opened without an explicit ACTION= specifier,  Prev: Thread-safety of the runtime library,  Up: Compiler Characteristics
--- 2334,2377 ----
  5.3 Thread-safety of the runtime library
  ========================================
  
! GNU Fortran can be used in programs with multiple threads, e.g. by using
! OpenMP, by calling OS thread handling functions via the 'ISO_C_BINDING'
! facility, or by GNU Fortran compiled library code being called from a
! multi-threaded program.
  
!    The GNU Fortran runtime library, ('libgfortran'), supports being
  called concurrently from multiple threads with the following exceptions.
  
!    During library initialization, the C 'getenv' function is used, which
! need not be thread-safe.  Similarly, the 'getenv' function is used to
! implement the 'GET_ENVIRONMENT_VARIABLE' and 'GETENV' intrinsics.  It is
! the responsibility of the user to ensure that the environment is not
! being updated concurrently when any of these actions are taking place.
  
!    The 'EXECUTE_COMMAND_LINE' and 'SYSTEM' intrinsics are implemented
! with the 'system' function, which need not be thread-safe.  It is the
! responsibility of the user to ensure that 'system' is not called
  concurrently.
  
     For platforms not supporting thread-safe POSIX functions, further
! functionality might not be thread-safe.  For details, please consult the
! documentation for your operating system.
  
     The GNU Fortran runtime library uses various C library functions that
! depend on the locale, such as 'strtod' and 'snprintf'.  In order to work
! correctly in locale-aware programs that set the locale using
! 'setlocale', the locale is reset to the default "C" locale while
! executing a formatted 'READ' or 'WRITE' statement.  On targets
  supporting the POSIX 2008 per-thread locale functions (e.g.
! 'newlocale', 'uselocale', 'freelocale'), these are used and thus the
! global locale set using 'setlocale' or the per-thread locales in other
  threads are not affected.  However, on targets lacking this
  functionality, the global LC_NUMERIC locale is set to "C" during the
! formatted I/O. Thus, on such targets it's not safe to call 'setlocale'
! concurrently from another thread while a Fortran formatted I/O operation
! is in progress.  Also, other threads doing something dependent on the
! LC_NUMERIC locale might not work correctly if a formatted I/O operation
! is in progress in another thread.
  
  
  File: gfortran.info,  Node: Data consistency and durability,  Next: Files opened without an explicit ACTION= specifier,  Prev: Thread-safety of the runtime library,  Up: Compiler Characteristics
*************** This section contains a brief overview o
*** 2401,2412 ****
  and durability issues when doing I/O.
  
     With respect to durability, GNU Fortran makes no effort to ensure
! that data is committed to stable storage. If this is required, the GNU
! Fortran programmer can use the intrinsic `FNUM' to retrieve the low
! level file descriptor corresponding to an open Fortran unit. Then,
! using e.g. the `ISO_C_BINDING' feature, one can call the underlying
! system call to flush dirty data to stable storage, such as `fsync' on
! POSIX, `_commit' on MingW, or `fcntl(fd, F_FULLSYNC, 0)' on Mac OS X.
  The following example shows how to call fsync:
  
         ! Declare the interface for POSIX fsync function
--- 2383,2394 ----
  and durability issues when doing I/O.
  
     With respect to durability, GNU Fortran makes no effort to ensure
! that data is committed to stable storage.  If this is required, the GNU
! Fortran programmer can use the intrinsic 'FNUM' to retrieve the low
! level file descriptor corresponding to an open Fortran unit.  Then,
! using e.g.  the 'ISO_C_BINDING' feature, one can call the underlying
! system call to flush dirty data to stable storage, such as 'fsync' on
! POSIX, '_commit' on MingW, or 'fcntl(fd, F_FULLSYNC, 0)' on Mac OS X.
  The following example shows how to call fsync:
  
         ! Declare the interface for POSIX fsync function
*************** The following example shows how to call
*** 2436,2465 ****
         if (ret /= 0) stop "Error calling FSYNC"
  
     With respect to consistency, for regular files GNU Fortran uses
! buffered I/O in order to improve performance. This buffer is flushed
! automatically when full and in some other situations, e.g. when closing
! a unit. It can also be explicitly flushed with the `FLUSH' statement.
! Also, the buffering can be turned off with the
! `GFORTRAN_UNBUFFERED_ALL' and `GFORTRAN_UNBUFFERED_PRECONNECTED'
! environment variables. Special files, such as terminals and pipes, are
! always unbuffered. Sometimes, however, further things may need to be
! done in order to allow other processes to see data that GNU Fortran has
! written, as follows.
  
     The Windows platform supports a relaxed metadata consistency model,
! where file metadata is written to the directory lazily. This means
! that, for instance, the `dir' command can show a stale size for a file.
  One can force a directory metadata update by closing the unit, or by
! calling `_commit' on the file descriptor. Note, though, that `_commit'
  will force all dirty data to stable storage, which is often a very slow
  operation.
  
     The Network File System (NFS) implements a relaxed consistency model
! called open-to-close consistency. Closing a file forces dirty data and
  metadata to be flushed to the server, and opening a file forces the
  client to contact the server in order to revalidate cached data.
! `fsync' will also force a flush of dirty data and metadata to the
! server. Similar to `open' and `close', acquiring and releasing `fcntl'
  file locks, if the server supports them, will also force cache
  validation and flushing dirty data and metadata.
  
--- 2418,2446 ----
         if (ret /= 0) stop "Error calling FSYNC"
  
     With respect to consistency, for regular files GNU Fortran uses
! buffered I/O in order to improve performance.  This buffer is flushed
! automatically when full and in some other situations, e.g.  when closing
! a unit.  It can also be explicitly flushed with the 'FLUSH' statement.
! Also, the buffering can be turned off with the 'GFORTRAN_UNBUFFERED_ALL'
! and 'GFORTRAN_UNBUFFERED_PRECONNECTED' environment variables.  Special
! files, such as terminals and pipes, are always unbuffered.  Sometimes,
! however, further things may need to be done in order to allow other
! processes to see data that GNU Fortran has written, as follows.
  
     The Windows platform supports a relaxed metadata consistency model,
! where file metadata is written to the directory lazily.  This means
! that, for instance, the 'dir' command can show a stale size for a file.
  One can force a directory metadata update by closing the unit, or by
! calling '_commit' on the file descriptor.  Note, though, that '_commit'
  will force all dirty data to stable storage, which is often a very slow
  operation.
  
     The Network File System (NFS) implements a relaxed consistency model
! called open-to-close consistency.  Closing a file forces dirty data and
  metadata to be flushed to the server, and opening a file forces the
  client to contact the server in order to revalidate cached data.
! 'fsync' will also force a flush of dirty data and metadata to the
! server.  Similar to 'open' and 'close', acquiring and releasing 'fcntl'
  file locks, if the server supports them, will also force cache
  validation and flushing dirty data and metadata.
  
*************** File: gfortran.info,  Node: Files opened
*** 2469,2484 ****
  5.5 Files opened without an explicit ACTION= specifier
  ======================================================
  
! The Fortran standard says that if an `OPEN' statement is executed
! without an explicit `ACTION=' specifier, the default value is processor
  dependent.  GNU Fortran behaves as follows:
  
!   1. Attempt to open the file with `ACTION='READWRITE''
! 
!   2. If that fails, try to open with `ACTION='READ''
! 
!   3. If that fails, try to open with `ACTION='WRITE''
! 
    4. If that fails, generate an error
  
  
--- 2450,2462 ----
  5.5 Files opened without an explicit ACTION= specifier
  ======================================================
  
! The Fortran standard says that if an 'OPEN' statement is executed
! without an explicit 'ACTION=' specifier, the default value is processor
  dependent.  GNU Fortran behaves as follows:
  
!   1. Attempt to open the file with 'ACTION='READWRITE''
!   2. If that fails, try to open with 'ACTION='READ''
!   3. If that fails, try to open with 'ACTION='WRITE''
    4. If that fails, generate an error
  
  
*************** This section documents the behavior of G
*** 2491,2510 ****
  on symbolic links, on systems that support them.
  
     * Results of INQUIRE statements of the "inquire by file" form will
!      relate to the target of the symbolic link. For example,
!      `INQUIRE(FILE="foo",EXIST=ex)' will set EX to .TRUE. if FOO is a
!      symbolic link pointing to an existing file, and .FALSE.  if FOO
       points to an non-existing file ("dangling" symbolic link).
  
!    * Using the `OPEN' statement with a `STATUS="NEW"' specifier on a
       symbolic link will result in an error condition, whether the
       symbolic link points to an existing target or is dangling.
  
!    * If a symbolic link was connected, using the `CLOSE' statement with
!      a `STATUS="DELETE"' specifier will cause the symbolic link itself
       to be deleted, not its target.
  
- 
  
  File: gfortran.info,  Node: Extensions,  Next: Mixed-Language Programming,  Prev: Compiler Characteristics,  Up: Top
  
--- 2469,2487 ----
  on symbolic links, on systems that support them.
  
     * Results of INQUIRE statements of the "inquire by file" form will
!      relate to the target of the symbolic link.  For example,
!      'INQUIRE(FILE="foo",EXIST=ex)' will set EX to .TRUE. if FOO is a
!      symbolic link pointing to an existing file, and .FALSE. if FOO
       points to an non-existing file ("dangling" symbolic link).
  
!    * Using the 'OPEN' statement with a 'STATUS="NEW"' specifier on a
       symbolic link will result in an error condition, whether the
       symbolic link points to an existing target or is dangling.
  
!    * If a symbolic link was connected, using the 'CLOSE' statement with
!      a 'STATUS="DELETE"' specifier will cause the symbolic link itself
       to be deleted, not its target.
  
  
  File: gfortran.info,  Node: Extensions,  Next: Mixed-Language Programming,  Prev: Compiler Characteristics,  Up: Top
  
*************** GNU Fortran implements a number of exten
*** 2533,2544 ****
  This chapter contains information on their syntax and meaning.  There
  are currently two categories of GNU Fortran extensions, those that
  provide functionality beyond that provided by any standard, and those
! that are supported by GNU Fortran purely for backward compatibility
! with legacy compilers.  By default, `-std=gnu' allows the compiler to
! accept both types of extensions, but to warn about the use of the
! latter.  Specifying either `-std=f95', `-std=f2003' or `-std=f2008'
! disables both types of extensions, and `-std=legacy' allows both
! without warning.
  
  * Menu:
  
--- 2510,2520 ----
  This chapter contains information on their syntax and meaning.  There
  are currently two categories of GNU Fortran extensions, those that
  provide functionality beyond that provided by any standard, and those
! that are supported by GNU Fortran purely for backward compatibility with
! legacy compilers.  By default, '-std=gnu' allows the compiler to accept
! both types of extensions, but to warn about the use of the latter.
! Specifying either '-std=f95', '-std=f2003' or '-std=f2008' disables both
! types of extensions, and '-std=legacy' allows both without warning.
  
  * Menu:
  
*************** without warning.
*** 2549,2555 ****
  * Commas in FORMAT specifications::
  * Missing period in FORMAT specifications::
  * I/O item lists::
! * `Q' exponent-letter::
  * BOZ literal constants::
  * Real array indices::
  * Unary operators::
--- 2525,2531 ----
  * Commas in FORMAT specifications::
  * Missing period in FORMAT specifications::
  * I/O item lists::
! * Q exponent-letter::
  * BOZ literal constants::
  * Real array indices::
  * Unary operators::
*************** File: gfortran.info,  Node: Old-style ki
*** 2573,2589 ****
  GNU Fortran allows old-style kind specifications in declarations.  These
  look like:
             TYPESPEC*size x,y,z
!    where `TYPESPEC' is a basic type (`INTEGER', `REAL', etc.), and
! where `size' is a byte count corresponding to the storage size of a
! valid kind for that type.  (For `COMPLEX' variables, `size' is the
! total size of the real and imaginary parts.)  The statement then
! declares `x', `y' and `z' to be of type `TYPESPEC' with the appropriate
! kind.  This is equivalent to the standard-conforming declaration
             TYPESPEC(k) x,y,z
!    where `k' is the kind parameter suitable for the intended precision.
! As kind parameters are implementation-dependent, use the `KIND',
! `SELECTED_INT_KIND' and `SELECTED_REAL_KIND' intrinsics to retrieve the
! correct value, for instance `REAL*8 x' can be replaced by:
       INTEGER, PARAMETER :: dbl = KIND(1.0d0)
       REAL(KIND=dbl) :: x
  
--- 2549,2565 ----
  GNU Fortran allows old-style kind specifications in declarations.  These
  look like:
             TYPESPEC*size x,y,z
! where 'TYPESPEC' is a basic type ('INTEGER', 'REAL', etc.), and where
! 'size' is a byte count corresponding to the storage size of a valid kind
! for that type.  (For 'COMPLEX' variables, 'size' is the total size of
! the real and imaginary parts.)  The statement then declares 'x', 'y' and
! 'z' to be of type 'TYPESPEC' with the appropriate kind.  This is
! equivalent to the standard-conforming declaration
             TYPESPEC(k) x,y,z
! where 'k' is the kind parameter suitable for the intended precision.  As
! kind parameters are implementation-dependent, use the 'KIND',
! 'SELECTED_INT_KIND' and 'SELECTED_REAL_KIND' intrinsics to retrieve the
! correct value, for instance 'REAL*8 x' can be replaced by:
       INTEGER, PARAMETER :: dbl = KIND(1.0d0)
       REAL(KIND=dbl) :: x
  
*************** File: gfortran.info,  Node: Old-style va
*** 2596,2607 ****
  GNU Fortran allows old-style initialization of variables of the form:
             INTEGER i/1/,j/2/
             REAL x(2,2) /3*0.,1./
!    The syntax for the initializers is as for the `DATA' statement, but
! unlike in a `DATA' statement, an initializer only applies to the
  variable immediately preceding the initialization.  In other words,
! something like `INTEGER I,J/2,3/' is not valid.  This style of
  initialization is only allowed in declarations without double colons
! (`::'); the double colons were introduced in Fortran 90, which also
  introduced a standard syntax for initializing variables in type
  declarations.
  
--- 2572,2583 ----
  GNU Fortran allows old-style initialization of variables of the form:
             INTEGER i/1/,j/2/
             REAL x(2,2) /3*0.,1./
!    The syntax for the initializers is as for the 'DATA' statement, but
! unlike in a 'DATA' statement, an initializer only applies to the
  variable immediately preceding the initialization.  In other words,
! something like 'INTEGER I,J/2,3/' is not valid.  This style of
  initialization is only allowed in declarations without double colons
! ('::'); the double colons were introduced in Fortran 90, which also
  introduced a standard syntax for initializing variables in type
  declarations.
  
*************** are:
*** 2616,2622 ****
             DATA i/1/, j/2/, x/3*0.,1./
  
     Note that variables which are explicitly initialized in declarations
! or in `DATA' statements automatically acquire the `SAVE' attribute.
  
  
  File: gfortran.info,  Node: Extensions to namelist,  Next: X format descriptor without count field,  Prev: Old-style variable initialization,  Up: Extensions implemented in GNU Fortran
--- 2592,2598 ----
             DATA i/1/, j/2/, x/3*0.,1./
  
     Note that variables which are explicitly initialized in declarations
! or in 'DATA' statements automatically acquire the 'SAVE' attribute.
  
  
  File: gfortran.info,  Node: Extensions to namelist,  Next: X format descriptor without count field,  Prev: Old-style variable initialization,  Up: Extensions implemented in GNU Fortran
*************** types.  The output from a namelist write
*** 2630,2646 ****
  read.  The output has all names in upper case and indentation to column
  1 after the namelist name.  Two extensions are permitted:
  
!    Old-style use of `$' instead of `&'
       $MYNML
        X(:)%Y(2) = 1.0 2.0 3.0
        CH(1:4) = "abcd"
       $END
  
!    It should be noted that the default terminator is `/' rather than
! `&END'.
  
     Querying of the namelist when inputting from stdin.  After at least
! one space, entering `?' sends to stdout the namelist name and the names
  of the variables in the namelist:
        ?
  
--- 2606,2622 ----
  read.  The output has all names in upper case and indentation to column
  1 after the namelist name.  Two extensions are permitted:
  
!    Old-style use of '$' instead of '&'
       $MYNML
        X(:)%Y(2) = 1.0 2.0 3.0
        CH(1:4) = "abcd"
       $END
  
!    It should be noted that the default terminator is '/' rather than
! '&END'.
  
     Querying of the namelist when inputting from stdin.  After at least
! one space, entering '?' sends to stdout the namelist name and the names
  of the variables in the namelist:
        ?
  
*************** of the variables in the namelist:
*** 2650,2656 ****
        ch
       &end
  
!    Entering `=?' outputs the namelist to stdout, as if `WRITE(*,NML =
  mynml)' had been called:
       =?
  
--- 2626,2632 ----
        ch
       &end
  
!    Entering '=?' outputs the namelist to stdout, as if 'WRITE(*,NML =
  mynml)' had been called:
       =?
  
*************** mynml)' had been called:
*** 2661,2670 ****
        CH=abcd,  /
  
     To aid this dialog, when input is from stdin, errors send their
! messages to stderr and execution continues, even if `IOSTAT' is set.
  
!    `PRINT' namelist is permitted.  This causes an error if `-std=f95'
! is used.
       PROGRAM test_print
         REAL, dimension (4)  ::  x = (/1.0, 2.0, 3.0, 4.0/)
         NAMELIST /mynml/ x
--- 2637,2646 ----
        CH=abcd,  /
  
     To aid this dialog, when input is from stdin, errors send their
! messages to stderr and execution continues, even if 'IOSTAT' is set.
  
!    'PRINT' namelist is permitted.  This causes an error if '-std=f95' is
! used.
       PROGRAM test_print
         REAL, dimension (4)  ::  x = (/1.0, 2.0, 3.0, 4.0/)
         NAMELIST /mynml/ x
*************** is used.
*** 2672,2686 ****
       END PROGRAM test_print
  
     Expanded namelist reads are permitted.  This causes an error if
! `-std=f95' is used.  In the following example, the first element of the
  array will be given the value 0.00 and the two succeeding elements will
  be given the values 1.00 and 2.00.
       &MYNML
         X(1,1) = 0.00 , 1.00 , 2.00
       /
  
!    When writing a namelist, if no `DELIM=' is specified, by default a
! double quote is used to delimit character strings. If -std=F95, F2003,
  or F2008, etc, the delim status is set to 'none'.  Defaulting to quotes
  ensures that namelists with character strings can be subsequently read
  back in accurately.
--- 2648,2662 ----
       END PROGRAM test_print
  
     Expanded namelist reads are permitted.  This causes an error if
! '-std=f95' is used.  In the following example, the first element of the
  array will be given the value 0.00 and the two succeeding elements will
  be given the values 1.00 and 2.00.
       &MYNML
         X(1,1) = 0.00 , 1.00 , 2.00
       /
  
!    When writing a namelist, if no 'DELIM=' is specified, by default a
! double quote is used to delimit character strings.  If -std=F95, F2003,
  or F2008, etc, the delim status is set to 'none'.  Defaulting to quotes
  ensures that namelists with character strings can be subsequently read
  back in accurately.
*************** back in accurately.
*** 2688,2699 ****
  
  File: gfortran.info,  Node: X format descriptor without count field,  Next: Commas in FORMAT specifications,  Prev: Extensions to namelist,  Up: Extensions implemented in GNU Fortran
  
! 6.1.4 `X' format descriptor without count field
  -----------------------------------------------
  
! To support legacy codes, GNU Fortran permits the count field of the `X'
! edit descriptor in `FORMAT' statements to be omitted.  When omitted,
! the count is implicitly assumed to be one.
  
              PRINT 10, 2, 3
       10     FORMAT (I1, X, I1)
--- 2664,2675 ----
  
  File: gfortran.info,  Node: X format descriptor without count field,  Next: Commas in FORMAT specifications,  Prev: Extensions to namelist,  Up: Extensions implemented in GNU Fortran
  
! 6.1.4 'X' format descriptor without count field
  -----------------------------------------------
  
! To support legacy codes, GNU Fortran permits the count field of the 'X'
! edit descriptor in 'FORMAT' statements to be omitted.  When omitted, the
! count is implicitly assumed to be one.
  
              PRINT 10, 2, 3
       10     FORMAT (I1, X, I1)
*************** the count is implicitly assumed to be on
*** 2701,2712 ****
  
  File: gfortran.info,  Node: Commas in FORMAT specifications,  Next: Missing period in FORMAT specifications,  Prev: X format descriptor without count field,  Up: Extensions implemented in GNU Fortran
  
! 6.1.5 Commas in `FORMAT' specifications
  ---------------------------------------
  
  To support legacy codes, GNU Fortran allows the comma separator to be
  omitted immediately before and after character string edit descriptors
! in `FORMAT' statements.
  
              PRINT 10, 2, 3
       10     FORMAT ('FOO='I1' BAR='I2)
--- 2677,2688 ----
  
  File: gfortran.info,  Node: Commas in FORMAT specifications,  Next: Missing period in FORMAT specifications,  Prev: X format descriptor without count field,  Up: Extensions implemented in GNU Fortran
  
! 6.1.5 Commas in 'FORMAT' specifications
  ---------------------------------------
  
  To support legacy codes, GNU Fortran allows the comma separator to be
  omitted immediately before and after character string edit descriptors
! in 'FORMAT' statements.
  
              PRINT 10, 2, 3
       10     FORMAT ('FOO='I1' BAR='I2)
*************** in `FORMAT' statements.
*** 2714,2724 ****
  
  File: gfortran.info,  Node: Missing period in FORMAT specifications,  Next: I/O item lists,  Prev: Commas in FORMAT specifications,  Up: Extensions implemented in GNU Fortran
  
! 6.1.6 Missing period in `FORMAT' specifications
  -----------------------------------------------
  
  To support legacy codes, GNU Fortran allows missing periods in format
! specifications if and only if `-std=legacy' is given on the command
  line.  This is considered non-conforming code and is discouraged.
  
              REAL :: value
--- 2690,2700 ----
  
  File: gfortran.info,  Node: Missing period in FORMAT specifications,  Next: I/O item lists,  Prev: Commas in FORMAT specifications,  Up: Extensions implemented in GNU Fortran
  
! 6.1.6 Missing period in 'FORMAT' specifications
  -----------------------------------------------
  
  To support legacy codes, GNU Fortran allows missing periods in format
! specifications if and only if '-std=legacy' is given on the command
  line.  This is considered non-conforming code and is discouraged.
  
              REAL :: value
*************** line.  This is considered non-conforming
*** 2726,2799 ****
       10     FORMAT ('F4')
  
  
! File: gfortran.info,  Node: I/O item lists,  Next: `Q' exponent-letter,  Prev: Missing period in FORMAT specifications,  Up: Extensions implemented in GNU Fortran
  
  6.1.7 I/O item lists
  --------------------
  
  To support legacy codes, GNU Fortran allows the input item list of the
! `READ' statement, and the output item lists of the `WRITE' and `PRINT'
  statements, to start with a comma.
  
  
! File: gfortran.info,  Node: `Q' exponent-letter,  Next: BOZ literal constants,  Prev: I/O item lists,  Up: Extensions implemented in GNU Fortran
  
! 6.1.8 `Q' exponent-letter
  -------------------------
  
  GNU Fortran accepts real literal constants with an exponent-letter of
! `Q', for example, `1.23Q45'.  The constant is interpreted as a
! `REAL(16)' entity on targets that support this type.  If the target
! does not support `REAL(16)' but has a `REAL(10)' type, then the
! real-literal-constant will be interpreted as a `REAL(10)' entity.  In
! the absence of `REAL(16)' and `REAL(10)', an error will occur.
  
  
! File: gfortran.info,  Node: BOZ literal constants,  Next: Real array indices,  Prev: `Q' exponent-letter,  Up: Extensions implemented in GNU Fortran
  
  6.1.9 BOZ literal constants
  ---------------------------
  
! Besides decimal constants, Fortran also supports binary (`b'), octal
! (`o') and hexadecimal (`z') integer constants.  The syntax is: `prefix
! quote digits quote', were the prefix is either `b', `o' or `z', quote
! is either `'' or `"' and the digits are for binary `0' or `1', for
! octal between `0' and `7', and for hexadecimal between `0' and `F'.
! (Example: `b'01011101''.)
  
     Up to Fortran 95, BOZ literals were only allowed to initialize
  integer variables in DATA statements.  Since Fortran 2003 BOZ literals
! are also allowed as argument of `REAL', `DBLE', `INT' and `CMPLX'; the
  result is the same as if the integer BOZ literal had been converted by
! `TRANSFER' to, respectively, `real', `double precision', `integer' or
! `complex'.  As GNU Fortran extension the intrinsic procedures `FLOAT',
! `DFLOAT', `COMPLEX' and `DCMPLX' are treated alike.
  
!    As an extension, GNU Fortran allows hexadecimal BOZ literal
! constants to be specified using the `X' prefix, in addition to the
! standard `Z' prefix.  The BOZ literal can also be specified by adding a
! suffix to the string, for example, `Z'ABC'' and `'ABC'Z' are equivalent.
  
     Furthermore, GNU Fortran allows using BOZ literal constants outside
  DATA statements and the four intrinsic functions allowed by Fortran
  2003.  In DATA statements, in direct assignments, where the right-hand
  side only contains a BOZ literal constant, and for old-style
! initializers of the form `integer i /o'0173'/', the constant is
! transferred as if `TRANSFER' had been used; for `COMPLEX' numbers, only
! the real part is initialized unless `CMPLX' is used.  In all other
! cases, the BOZ literal constant is converted to an `INTEGER' value with
  the largest decimal representation.  This value is then converted
  numerically to the type and kind of the variable in question.  (For
! instance, `real :: r = b'0000001' + 1' initializes `r' with `2.0'.) As
  different compilers implement the extension differently, one should be
  careful when doing bitwise initialization of non-integer variables.
  
!    Note that initializing an `INTEGER' variable with a statement such
! as `DATA i/Z'FFFFFFFF'/' will give an integer overflow error rather
! than the desired result of -1 when `i' is a 32-bit integer on a system
! that supports 64-bit integers.  The `-fno-range-check' option can be
! used as a workaround for legacy code that initializes integers in this
! manner.
  
  
  File: gfortran.info,  Node: Real array indices,  Next: Unary operators,  Prev: BOZ literal constants,  Up: Extensions implemented in GNU Fortran
--- 2702,2774 ----
       10     FORMAT ('F4')
  
  
! File: gfortran.info,  Node: I/O item lists,  Next: Q exponent-letter,  Prev: Missing period in FORMAT specifications,  Up: Extensions implemented in GNU Fortran
  
  6.1.7 I/O item lists
  --------------------
  
  To support legacy codes, GNU Fortran allows the input item list of the
! 'READ' statement, and the output item lists of the 'WRITE' and 'PRINT'
  statements, to start with a comma.
  
  
! File: gfortran.info,  Node: Q exponent-letter,  Next: BOZ literal constants,  Prev: I/O item lists,  Up: Extensions implemented in GNU Fortran
  
! 6.1.8 'Q' exponent-letter
  -------------------------
  
  GNU Fortran accepts real literal constants with an exponent-letter of
! 'Q', for example, '1.23Q45'.  The constant is interpreted as a
! 'REAL(16)' entity on targets that support this type.  If the target does
! not support 'REAL(16)' but has a 'REAL(10)' type, then the
! real-literal-constant will be interpreted as a 'REAL(10)' entity.  In
! the absence of 'REAL(16)' and 'REAL(10)', an error will occur.
  
  
! File: gfortran.info,  Node: BOZ literal constants,  Next: Real array indices,  Prev: Q exponent-letter,  Up: Extensions implemented in GNU Fortran
  
  6.1.9 BOZ literal constants
  ---------------------------
  
! Besides decimal constants, Fortran also supports binary ('b'), octal
! ('o') and hexadecimal ('z') integer constants.  The syntax is: 'prefix
! quote digits quote', were the prefix is either 'b', 'o' or 'z', quote is
! either ''' or '"' and the digits are for binary '0' or '1', for octal
! between '0' and '7', and for hexadecimal between '0' and 'F'.  (Example:
! 'b'01011101''.)
  
     Up to Fortran 95, BOZ literals were only allowed to initialize
  integer variables in DATA statements.  Since Fortran 2003 BOZ literals
! are also allowed as argument of 'REAL', 'DBLE', 'INT' and 'CMPLX'; the
  result is the same as if the integer BOZ literal had been converted by
! 'TRANSFER' to, respectively, 'real', 'double precision', 'integer' or
! 'complex'.  As GNU Fortran extension the intrinsic procedures 'FLOAT',
! 'DFLOAT', 'COMPLEX' and 'DCMPLX' are treated alike.
  
!    As an extension, GNU Fortran allows hexadecimal BOZ literal constants
! to be specified using the 'X' prefix, in addition to the standard 'Z'
! prefix.  The BOZ literal can also be specified by adding a suffix to the
! string, for example, 'Z'ABC'' and ''ABC'Z' are equivalent.
  
     Furthermore, GNU Fortran allows using BOZ literal constants outside
  DATA statements and the four intrinsic functions allowed by Fortran
  2003.  In DATA statements, in direct assignments, where the right-hand
  side only contains a BOZ literal constant, and for old-style
! initializers of the form 'integer i /o'0173'/', the constant is
! transferred as if 'TRANSFER' had been used; for 'COMPLEX' numbers, only
! the real part is initialized unless 'CMPLX' is used.  In all other
! cases, the BOZ literal constant is converted to an 'INTEGER' value with
  the largest decimal representation.  This value is then converted
  numerically to the type and kind of the variable in question.  (For
! instance, 'real :: r = b'0000001' + 1' initializes 'r' with '2.0'.)  As
  different compilers implement the extension differently, one should be
  careful when doing bitwise initialization of non-integer variables.
  
!    Note that initializing an 'INTEGER' variable with a statement such as
! 'DATA i/Z'FFFFFFFF'/' will give an integer overflow error rather than
! the desired result of -1 when 'i' is a 32-bit integer on a system that
! supports 64-bit integers.  The '-fno-range-check' option can be used as
! a workaround for legacy code that initializes integers in this manner.
  
  
  File: gfortran.info,  Node: Real array indices,  Next: Unary operators,  Prev: BOZ literal constants,  Up: Extensions implemented in GNU Fortran
*************** File: gfortran.info,  Node: Real array i
*** 2801,2807 ****
  6.1.10 Real array indices
  -------------------------
  
! As an extension, GNU Fortran allows the use of `REAL' expressions or
  variables as array indices.
  
  
--- 2776,2782 ----
  6.1.10 Real array indices
  -------------------------
  
! As an extension, GNU Fortran allows the use of 'REAL' expressions or
  variables as array indices.
  
  
*************** the need for parenthesis.
*** 2819,2843 ****
  
  File: gfortran.info,  Node: Implicitly convert LOGICAL and INTEGER values,  Next: Hollerith constants support,  Prev: Unary operators,  Up: Extensions implemented in GNU Fortran
  
! 6.1.12 Implicitly convert `LOGICAL' and `INTEGER' values
  --------------------------------------------------------
  
  As an extension for backwards compatibility with other compilers, GNU
! Fortran allows the implicit conversion of `LOGICAL' values to `INTEGER'
! values and vice versa.  When converting from a `LOGICAL' to an
! `INTEGER', `.FALSE.' is interpreted as zero, and `.TRUE.' is
! interpreted as one.  When converting from `INTEGER' to `LOGICAL', the
! value zero is interpreted as `.FALSE.' and any nonzero value is
! interpreted as `.TRUE.'.
  
               LOGICAL :: l
               l = 1
- 
               INTEGER :: i
               i = .TRUE.
  
!    However, there is no implicit conversion of `INTEGER' values in
! `if'-statements, nor of `LOGICAL' or `INTEGER' values in I/O operations.
  
  
  File: gfortran.info,  Node: Hollerith constants support,  Next: Cray pointers,  Prev: Implicitly convert LOGICAL and INTEGER values,  Up: Extensions implemented in GNU Fortran
--- 2794,2817 ----
  
  File: gfortran.info,  Node: Implicitly convert LOGICAL and INTEGER values,  Next: Hollerith constants support,  Prev: Unary operators,  Up: Extensions implemented in GNU Fortran
  
! 6.1.12 Implicitly convert 'LOGICAL' and 'INTEGER' values
  --------------------------------------------------------
  
  As an extension for backwards compatibility with other compilers, GNU
! Fortran allows the implicit conversion of 'LOGICAL' values to 'INTEGER'
! values and vice versa.  When converting from a 'LOGICAL' to an
! 'INTEGER', '.FALSE.' is interpreted as zero, and '.TRUE.' is interpreted
! as one.  When converting from 'INTEGER' to 'LOGICAL', the value zero is
! interpreted as '.FALSE.' and any nonzero value is interpreted as
! '.TRUE.'.
  
               LOGICAL :: l
               l = 1
               INTEGER :: i
               i = .TRUE.
  
!    However, there is no implicit conversion of 'INTEGER' values in
! 'if'-statements, nor of 'LOGICAL' or 'INTEGER' values in I/O operations.
  
  
  File: gfortran.info,  Node: Hollerith constants support,  Next: Cray pointers,  Prev: Implicitly convert LOGICAL and INTEGER values,  Up: Extensions implemented in GNU Fortran
*************** File: gfortran.info,  Node: Hollerith co
*** 2846,2857 ****
  ----------------------------------
  
  GNU Fortran supports Hollerith constants in assignments, function
! arguments, and `DATA' and `ASSIGN' statements.  A Hollerith constant is
  written as a string of characters preceded by an integer constant
! indicating the character count, and the letter `H' or `h', and stored
! in bytewise fashion in a numeric (`INTEGER', `REAL', or `complex') or
! `LOGICAL' variable.  The constant will be padded or truncated to fit
! the size of the variable in which it is stored.
  
     Examples of valid uses of Hollerith constants:
             complex*16 x(2)
--- 2820,2831 ----
  ----------------------------------
  
  GNU Fortran supports Hollerith constants in assignments, function
! arguments, and 'DATA' and 'ASSIGN' statements.  A Hollerith constant is
  written as a string of characters preceded by an integer constant
! indicating the character count, and the letter 'H' or 'h', and stored in
! bytewise fashion in a numeric ('INTEGER', 'REAL', or 'complex') or
! 'LOGICAL' variable.  The constant will be padded or truncated to fit the
! size of the variable in which it is stored.
  
     Examples of valid uses of Hollerith constants:
             complex*16 x(2)
*************** the size of the variable in which it is
*** 2866,2877 ****
  
     In general, Hollerith constants were used to provide a rudimentary
  facility for handling character strings in early Fortran compilers,
! prior to the introduction of `CHARACTER' variables in Fortran 77; in
! those cases, the standard-compliant equivalent is to convert the
! program to use proper character strings.  On occasion, there may be a
! case where the intent is specifically to initialize a numeric variable
! with a given byte sequence.  In these cases, the same result can be
! obtained by using the `TRANSFER' statement, as in this example.
             INTEGER(KIND=4) :: a
             a = TRANSFER ("abcd", a)     ! equivalent to: a = 4Habcd
  
--- 2840,2851 ----
  
     In general, Hollerith constants were used to provide a rudimentary
  facility for handling character strings in early Fortran compilers,
! prior to the introduction of 'CHARACTER' variables in Fortran 77; in
! those cases, the standard-compliant equivalent is to convert the program
! to use proper character strings.  On occasion, there may be a case where
! the intent is specifically to initialize a numeric variable with a given
! byte sequence.  In these cases, the same result can be obtained by using
! the 'TRANSFER' statement, as in this example.
             INTEGER(KIND=4) :: a
             a = TRANSFER ("abcd", a)     ! equivalent to: a = 4Habcd
  
*************** variables: an integer "pointer" that hol
*** 2891,2907 ****
     or,
               pointer ( <pointer1> , <pointee1> ), ( <pointer2> , <pointee2> ), ...
     The pointer is an integer that is intended to hold a memory address.
! The pointee may be an array or scalar.  A pointee can be an assumed
! size array--that is, the last dimension may be left unspecified by
! using a `*' in place of a value--but a pointee cannot be an assumed
! shape array.  No space is allocated for the pointee.
  
     The pointee may have its type declared before or after the pointer
  statement, and its array specification (if any) may be declared before,
  during, or after the pointer statement.  The pointer may be declared as
  an integer prior to the pointer statement.  However, some machines have
! default integer sizes that are different than the size of a pointer,
! and so the following code is not portable:
               integer ipt
               pointer (ipt, iarr)
     If a pointer is declared with a kind that is too small, the compiler
--- 2865,2881 ----
     or,
               pointer ( <pointer1> , <pointee1> ), ( <pointer2> , <pointee2> ), ...
     The pointer is an integer that is intended to hold a memory address.
! The pointee may be an array or scalar.  A pointee can be an assumed size
! array--that is, the last dimension may be left unspecified by using a
! '*' in place of a value--but a pointee cannot be an assumed shape array.
! No space is allocated for the pointee.
  
     The pointee may have its type declared before or after the pointer
  statement, and its array specification (if any) may be declared before,
  during, or after the pointer statement.  The pointer may be declared as
  an integer prior to the pointer statement.  However, some machines have
! default integer sizes that are different than the size of a pointer, and
! so the following code is not portable:
               integer ipt
               pointer (ipt, iarr)
     If a pointer is declared with a kind that is too small, the compiler
*************** explicit declaration of ipt's type is om
*** 2912,2942 ****
  ensure that ipt is an integer variable large enough to hold a pointer.
  
     Pointer arithmetic is valid with Cray pointers, but it is not the
! same as C pointer arithmetic.  Cray pointers are just ordinary
! integers, so the user is responsible for determining how many bytes to
! add to a pointer in order to increment it.  Consider the following
! example:
               real target(10)
               real pointee(10)
               pointer (ipt, pointee)
               ipt = loc (target)
               ipt = ipt + 1
!    The last statement does not set `ipt' to the address of `target(1)',
! as it would in C pointer arithmetic.  Adding `1' to `ipt' just adds one
! byte to the address stored in `ipt'.
  
     Any expression involving the pointee will be translated to use the
  value stored in the pointer as the base address.
  
     To get the address of elements, this extension provides an intrinsic
! function `LOC()'.  The `LOC()' function is equivalent to the `&'
  operator in C, except the address is cast to an integer type:
               real ar(10)
               pointer(ipt, arpte(10))
               real arpte
               ipt = loc(ar)  ! Makes arpte is an alias for ar
               arpte(1) = 1.0 ! Sets ar(1) to 1.0
!    The pointer can also be set by a call to the `MALLOC' intrinsic (see
  *note MALLOC::).
  
     Cray pointees often are used to alias an existing variable.  For
--- 2886,2915 ----
  ensure that ipt is an integer variable large enough to hold a pointer.
  
     Pointer arithmetic is valid with Cray pointers, but it is not the
! same as C pointer arithmetic.  Cray pointers are just ordinary integers,
! so the user is responsible for determining how many bytes to add to a
! pointer in order to increment it.  Consider the following example:
               real target(10)
               real pointee(10)
               pointer (ipt, pointee)
               ipt = loc (target)
               ipt = ipt + 1
!    The last statement does not set 'ipt' to the address of 'target(1)',
! as it would in C pointer arithmetic.  Adding '1' to 'ipt' just adds one
! byte to the address stored in 'ipt'.
  
     Any expression involving the pointee will be translated to use the
  value stored in the pointer as the base address.
  
     To get the address of elements, this extension provides an intrinsic
! function 'LOC()'.  The 'LOC()' function is equivalent to the '&'
  operator in C, except the address is cast to an integer type:
               real ar(10)
               pointer(ipt, arpte(10))
               real arpte
               ipt = loc(ar)  ! Makes arpte is an alias for ar
               arpte(1) = 1.0 ! Sets ar(1) to 1.0
!    The pointer can also be set by a call to the 'MALLOC' intrinsic (see
  *note MALLOC::).
  
     Cray pointees often are used to alias an existing variable.  For
*************** example:
*** 2945,2974 ****
               integer iarr(10)
               pointer (ipt, iarr)
               ipt = loc(target)
!    As long as `ipt' remains unchanged, `iarr' is now an alias for
! `target'.  The optimizer, however, will not detect this aliasing, so it
! is unsafe to use `iarr' and `target' simultaneously.  Using a pointee
! in any way that violates the Fortran aliasing rules or assumptions is
  illegal.  It is the user's responsibility to avoid doing this; the
  compiler works under the assumption that no such aliasing occurs.
  
     Cray pointers will work correctly when there is no aliasing (i.e.,
  when they are used to access a dynamically allocated block of memory),
  and also in any routine where a pointee is used, but any variable with
! which it shares storage is not used.  Code that violates these rules
! may not run as the user intends.  This is not a bug in the optimizer;
! any code that violates the aliasing rules is illegal.  (Note that this
! is not unique to GNU Fortran; any Fortran compiler that supports Cray
  pointers will "incorrectly" optimize code with illegal aliasing.)
  
     There are a number of restrictions on the attributes that can be
  applied to Cray pointers and pointees.  Pointees may not have the
! `ALLOCATABLE', `INTENT', `OPTIONAL', `DUMMY', `TARGET', `INTRINSIC', or
! `POINTER' attributes.  Pointers may not have the `DIMENSION',
! `POINTER', `TARGET', `ALLOCATABLE', `EXTERNAL', or `INTRINSIC'
! attributes, nor may they be function results.  Pointees may not occur
! in more than one pointer statement.  A pointee cannot be a pointer.
! Pointees cannot occur in equivalence, common, or data statements.
  
     A Cray pointer may also point to a function or a subroutine.  For
  example, the following excerpt is valid:
--- 2918,2947 ----
               integer iarr(10)
               pointer (ipt, iarr)
               ipt = loc(target)
!    As long as 'ipt' remains unchanged, 'iarr' is now an alias for
! 'target'.  The optimizer, however, will not detect this aliasing, so it
! is unsafe to use 'iarr' and 'target' simultaneously.  Using a pointee in
! any way that violates the Fortran aliasing rules or assumptions is
  illegal.  It is the user's responsibility to avoid doing this; the
  compiler works under the assumption that no such aliasing occurs.
  
     Cray pointers will work correctly when there is no aliasing (i.e.,
  when they are used to access a dynamically allocated block of memory),
  and also in any routine where a pointee is used, but any variable with
! which it shares storage is not used.  Code that violates these rules may
! not run as the user intends.  This is not a bug in the optimizer; any
! code that violates the aliasing rules is illegal.  (Note that this is
! not unique to GNU Fortran; any Fortran compiler that supports Cray
  pointers will "incorrectly" optimize code with illegal aliasing.)
  
     There are a number of restrictions on the attributes that can be
  applied to Cray pointers and pointees.  Pointees may not have the
! 'ALLOCATABLE', 'INTENT', 'OPTIONAL', 'DUMMY', 'TARGET', 'INTRINSIC', or
! 'POINTER' attributes.  Pointers may not have the 'DIMENSION', 'POINTER',
! 'TARGET', 'ALLOCATABLE', 'EXTERNAL', or 'INTRINSIC' attributes, nor may
! they be function results.  Pointees may not occur in more than one
! pointer statement.  A pointee cannot be a pointer.  Pointees cannot
! occur in equivalence, common, or data statements.
  
     A Cray pointer may also point to a function or a subroutine.  For
  example, the following excerpt is valid:
*************** example, the following excerpt is valid:
*** 2985,3016 ****
  
     A pointer may be modified during the course of a program, and this
  will change the location to which the pointee refers.  However, when
! pointees are passed as arguments, they are treated as ordinary
! variables in the invoked function.  Subsequent changes to the pointer
! will not change the base address of the array that was passed.
  
  
  File: gfortran.info,  Node: CONVERT specifier,  Next: OpenMP,  Prev: Cray pointers,  Up: Extensions implemented in GNU Fortran
  
! 6.1.15 `CONVERT' specifier
  --------------------------
  
  GNU Fortran allows the conversion of unformatted data between little-
  and big-endian representation to facilitate moving of data between
! different systems.  The conversion can be indicated with the `CONVERT'
! specifier on the `OPEN' statement.  *Note GFORTRAN_CONVERT_UNIT::, for
  an alternative way of specifying the data format via an environment
  variable.
  
!    Valid values for `CONVERT' are:
!      `CONVERT='NATIVE'' Use the native format.  This is the default.
! 
!      `CONVERT='SWAP'' Swap between little- and big-endian.
! 
!      `CONVERT='LITTLE_ENDIAN'' Use the little-endian representation for
       unformatted files.
! 
!      `CONVERT='BIG_ENDIAN'' Use the big-endian representation for
       unformatted files.
  
     Using the option could look like this:
--- 2958,2986 ----
  
     A pointer may be modified during the course of a program, and this
  will change the location to which the pointee refers.  However, when
! pointees are passed as arguments, they are treated as ordinary variables
! in the invoked function.  Subsequent changes to the pointer will not
! change the base address of the array that was passed.
  
  
  File: gfortran.info,  Node: CONVERT specifier,  Next: OpenMP,  Prev: Cray pointers,  Up: Extensions implemented in GNU Fortran
  
! 6.1.15 'CONVERT' specifier
  --------------------------
  
  GNU Fortran allows the conversion of unformatted data between little-
  and big-endian representation to facilitate moving of data between
! different systems.  The conversion can be indicated with the 'CONVERT'
! specifier on the 'OPEN' statement.  *Note GFORTRAN_CONVERT_UNIT::, for
  an alternative way of specifying the data format via an environment
  variable.
  
!    Valid values for 'CONVERT' are:
!      'CONVERT='NATIVE'' Use the native format.  This is the default.
!      'CONVERT='SWAP'' Swap between little- and big-endian.
!      'CONVERT='LITTLE_ENDIAN'' Use the little-endian representation for
       unformatted files.
!      'CONVERT='BIG_ENDIAN'' Use the big-endian representation for
       unformatted files.
  
     Using the option could look like this:
*************** variable.
*** 3018,3031 ****
              convert='big_endian')
  
     The value of the conversion can be queried by using
! `INQUIRE(CONVERT=ch)'.  The values returned are `'BIG_ENDIAN'' and
! `'LITTLE_ENDIAN''.
  
!    `CONVERT' works between big- and little-endian for `INTEGER' values
! of all supported kinds and for `REAL' on IEEE systems of kinds 4 and 8.
  Conversion between different "extended double" types on different
  architectures such as m68k and x86_64, which GNU Fortran supports as
! `REAL(KIND=10)' and `REAL(KIND=16)', will probably not work.
  
     _Note that the values specified via the GFORTRAN_CONVERT_UNIT
  environment variable will override the CONVERT specifier in the open
--- 2988,3001 ----
              convert='big_endian')
  
     The value of the conversion can be queried by using
! 'INQUIRE(CONVERT=ch)'.  The values returned are ''BIG_ENDIAN'' and
! ''LITTLE_ENDIAN''.
  
!    'CONVERT' works between big- and little-endian for 'INTEGER' values
! of all supported kinds and for 'REAL' on IEEE systems of kinds 4 and 8.
  Conversion between different "extended double" types on different
  architectures such as m68k and x86_64, which GNU Fortran supports as
! 'REAL(KIND=10)' and 'REAL(KIND=16)', will probably not work.
  
     _Note that the values specified via the GFORTRAN_CONVERT_UNIT
  environment variable will override the CONVERT specifier in the open
*************** run-time behavior.
*** 3052,3068 ****
     GNU Fortran strives to be compatible to the OpenMP Application
  Program Interface v4.0 (http://openmp.org/wp/openmp-specifications/).
  
!    To enable the processing of the OpenMP directive `!$omp' in
! free-form source code; the `c$omp', `*$omp' and `!$omp' directives in
! fixed form; the `!$' conditional compilation sentinels in free form;
! and the `c$', `*$' and `!$' sentinels in fixed form, `gfortran' needs
! to be invoked with the `-fopenmp'.  This also arranges for automatic
! linking of the GNU Offloading and Multi Processing Runtime Library
! *note libgomp: (libgomp)Top.
  
     The OpenMP Fortran runtime library routines are provided both in a
! form of a Fortran 90 module named `omp_lib' and in a form of a Fortran
! `include' file named `omp_lib.h'.
  
     An example of a parallelized loop taken from Appendix A.1 of the
  OpenMP Application Program Interface v2.5:
--- 3022,3038 ----
     GNU Fortran strives to be compatible to the OpenMP Application
  Program Interface v4.0 (http://openmp.org/wp/openmp-specifications/).
  
!    To enable the processing of the OpenMP directive '!$omp' in free-form
! source code; the 'c$omp', '*$omp' and '!$omp' directives in fixed form;
! the '!$' conditional compilation sentinels in free form; and the 'c$',
! '*$' and '!$' sentinels in fixed form, 'gfortran' needs to be invoked
! with the '-fopenmp'.  This also arranges for automatic linking of the
! GNU Offloading and Multi Processing Runtime Library *note libgomp:
! (libgomp)Top.
  
     The OpenMP Fortran runtime library routines are provided both in a
! form of a Fortran 90 module named 'omp_lib' and in a form of a Fortran
! 'include' file named 'omp_lib.h'.
  
     An example of a parallelized loop taken from Appendix A.1 of the
  OpenMP Application Program Interface v2.5:
*************** OpenMP Application Program Interface v2.
*** 3077,3093 ****
       END SUBROUTINE A1
  
     Please note:
!    * `-fopenmp' implies `-frecursive', i.e., all local arrays will be
!      allocated on the stack.  When porting existing code to OpenMP,
!      this may lead to surprising results, especially to segmentation
!      faults if the stacksize is limited.
  
     * On glibc-based systems, OpenMP enabled applications cannot be
       statically linked due to limitations of the underlying
       pthreads-implementation.  It might be possible to get a working
!      solution if `-Wl,--whole-archive -lpthread -Wl,--no-whole-archive'
       is added to the command line.  However, this is not supported by
!      `gcc' and thus not recommended.
  
  
  File: gfortran.info,  Node: OpenACC,  Next: Argument list functions,  Prev: OpenMP,  Up: Extensions implemented in GNU Fortran
--- 3047,3063 ----
       END SUBROUTINE A1
  
     Please note:
!    * '-fopenmp' implies '-frecursive', i.e., all local arrays will be
!      allocated on the stack.  When porting existing code to OpenMP, this
!      may lead to surprising results, especially to segmentation faults
!      if the stacksize is limited.
  
     * On glibc-based systems, OpenMP enabled applications cannot be
       statically linked due to limitations of the underlying
       pthreads-implementation.  It might be possible to get a working
!      solution if '-Wl,--whole-archive -lpthread -Wl,--no-whole-archive'
       is added to the command line.  However, this is not supported by
!      'gcc' and thus not recommended.
  
  
  File: gfortran.info,  Node: OpenACC,  Next: Argument list functions,  Prev: OpenMP,  Up: Extensions implemented in GNU Fortran
*************** influence run-time behavior.
*** 3103,3145 ****
     GNU Fortran strives to be compatible to the OpenACC Application
  Programming Interface v2.0 (http://www.openacc.org/).
  
!    To enable the processing of the OpenACC directive `!$acc' in
! free-form source code; the `c$acc', `*$acc' and `!$acc' directives in
! fixed form; the `!$' conditional compilation sentinels in free form;
! and the `c$', `*$' and `!$' sentinels in fixed form, `gfortran' needs
! to be invoked with the `-fopenacc'.  This also arranges for automatic
! linking of the GNU Offloading and Multi Processing Runtime Library
! *note libgomp: (libgomp)Top.
  
     The OpenACC Fortran runtime library routines are provided both in a
! form of a Fortran 90 module named `openacc' and in a form of a Fortran
! `include' file named `openacc_lib.h'.
  
     Note that this is an experimental feature, incomplete, and subject to
! change in future versions of GCC.  See
! `https://gcc.gnu.org/wiki/OpenACC' for more information.
  
  
  File: gfortran.info,  Node: Argument list functions,  Next: Read/Write after EOF marker,  Prev: OpenACC,  Up: Extensions implemented in GNU Fortran
  
! 6.1.18 Argument list functions `%VAL', `%REF' and `%LOC'
  --------------------------------------------------------
  
! GNU Fortran supports argument list functions `%VAL', `%REF' and `%LOC'
! statements, for backward compatibility with g77.  It is recommended
! that these should be used only for code that is accessing facilities
! outside of GNU Fortran, such as operating system or windowing
! facilities.  It is best to constrain such uses to isolated portions of
! a program-portions that deal specifically and exclusively with
! low-level, system-dependent facilities.  Such portions might well
! provide a portable interface for use by the program as a whole, but are
! themselves not portable, and should be thoroughly tested each time they
! are rebuilt using a new compiler or version of a compiler.
  
!    `%VAL' passes a scalar argument by value, `%REF' passes it by
! reference and `%LOC' passes its memory location.  Since gfortran
! already passes scalar arguments by reference, `%REF' is in effect a
! do-nothing.  `%LOC' has the same effect as a Fortran pointer.
  
     An example of passing an argument by value to a C subroutine foo.:
       C
--- 3073,3115 ----
     GNU Fortran strives to be compatible to the OpenACC Application
  Programming Interface v2.0 (http://www.openacc.org/).
  
!    To enable the processing of the OpenACC directive '!$acc' in
! free-form source code; the 'c$acc', '*$acc' and '!$acc' directives in
! fixed form; the '!$' conditional compilation sentinels in free form; and
! the 'c$', '*$' and '!$' sentinels in fixed form, 'gfortran' needs to be
! invoked with the '-fopenacc'.  This also arranges for automatic linking
! of the GNU Offloading and Multi Processing Runtime Library *note
! libgomp: (libgomp)Top.
  
     The OpenACC Fortran runtime library routines are provided both in a
! form of a Fortran 90 module named 'openacc' and in a form of a Fortran
! 'include' file named 'openacc_lib.h'.
  
     Note that this is an experimental feature, incomplete, and subject to
! change in future versions of GCC. See <https://gcc.gnu.org/wiki/OpenACC>
! for more information.
  
  
  File: gfortran.info,  Node: Argument list functions,  Next: Read/Write after EOF marker,  Prev: OpenACC,  Up: Extensions implemented in GNU Fortran
  
! 6.1.18 Argument list functions '%VAL', '%REF' and '%LOC'
  --------------------------------------------------------
  
! GNU Fortran supports argument list functions '%VAL', '%REF' and '%LOC'
! statements, for backward compatibility with g77.  It is recommended that
! these should be used only for code that is accessing facilities outside
! of GNU Fortran, such as operating system or windowing facilities.  It is
! best to constrain such uses to isolated portions of a program-portions
! that deal specifically and exclusively with low-level, system-dependent
! facilities.  Such portions might well provide a portable interface for
! use by the program as a whole, but are themselves not portable, and
! should be thoroughly tested each time they are rebuilt using a new
! compiler or version of a compiler.
  
!    '%VAL' passes a scalar argument by value, '%REF' passes it by
! reference and '%LOC' passes its memory location.  Since gfortran already
! passes scalar arguments by reference, '%REF' is in effect a do-nothing.
! '%LOC' has the same effect as a Fortran pointer.
  
     An example of passing an argument by value to a C subroutine foo.:
       C
*************** do-nothing.  `%LOC' has the same effect
*** 3152,3160 ****
             end
  
     For details refer to the g77 manual
! `https://gcc.gnu.org/onlinedocs/gcc-3.4.6/g77/index.html#Top'.
  
!    Also, `c_by_val.f' and its partner `c_by_val.c' of the GNU Fortran
  testsuite are worth a look.
  
  
--- 3122,3130 ----
             end
  
     For details refer to the g77 manual
! <https://gcc.gnu.org/onlinedocs/gcc-3.4.6/g77/index.html#Top>.
  
!    Also, 'c_by_val.f' and its partner 'c_by_val.c' of the GNU Fortran
  testsuite are worth a look.
  
  
*************** File: gfortran.info,  Node: Read/Write a
*** 3163,3179 ****
  6.1.19 Read/Write after EOF marker
  ----------------------------------
  
! Some legacy codes rely on allowing `READ' or `WRITE' after the EOF file
! marker in order to find the end of a file. GNU Fortran normally rejects
! these codes with a run-time error message and suggests the user
! consider `BACKSPACE' or `REWIND' to properly position the file before
! the EOF marker.  As an extension, the run-time error may be disabled
! using -std=legacy.
  
  
  File: gfortran.info,  Node: STRUCTURE and RECORD,  Next: UNION and MAP,  Prev: Read/Write after EOF marker,  Up: Extensions implemented in GNU Fortran
  
! 6.1.20 `STRUCTURE' and `RECORD'
  -------------------------------
  
  Record structures are a pre-Fortran-90 vendor extension to create
--- 3133,3149 ----
  6.1.19 Read/Write after EOF marker
  ----------------------------------
  
! Some legacy codes rely on allowing 'READ' or 'WRITE' after the EOF file
! marker in order to find the end of a file.  GNU Fortran normally rejects
! these codes with a run-time error message and suggests the user consider
! 'BACKSPACE' or 'REWIND' to properly position the file before the EOF
! marker.  As an extension, the run-time error may be disabled using
! -std=legacy.
  
  
  File: gfortran.info,  Node: STRUCTURE and RECORD,  Next: UNION and MAP,  Prev: Read/Write after EOF marker,  Up: Extensions implemented in GNU Fortran
  
! 6.1.20 'STRUCTURE' and 'RECORD'
  -------------------------------
  
  Record structures are a pre-Fortran-90 vendor extension to create
*************** structures, only Fortran 90's "derived t
*** 3182,3191 ****
  syntax.
  
     In many cases, record structures can easily be converted to derived
! types.  To convert, replace `STRUCTURE /'STRUCTURE-NAME`/' by `TYPE'
! TYPE-NAME.  Additionally, replace `RECORD /'STRUCTURE-NAME`/' by
! `TYPE('TYPE-NAME`)'. Finally, in the component access, replace the
! period (`.') by the percent sign (`%').
  
     Here is an example of code using the non portable record structure
  syntax:
--- 3152,3161 ----
  syntax.
  
     In many cases, record structures can easily be converted to derived
! types.  To convert, replace 'STRUCTURE /'STRUCTURE-NAME'/' by 'TYPE'
! TYPE-NAME.  Additionally, replace 'RECORD /'STRUCTURE-NAME'/' by
! 'TYPE('TYPE-NAME')'.  Finally, in the component access, replace the
! period ('.') by the percent sign ('%').
  
     Here is an example of code using the non portable record structure
  syntax:
*************** This code can easily be rewritten in the
*** 3243,3252 ****
  GNU Fortran implements STRUCTURES like derived types with the following
  rules and exceptions:
  
!    * Structures act like derived types with the `SEQUENCE' attribute.
       Otherwise they may contain no specifiers.
  
!    * Structures may share names with other symbols. For example, the
       following is invalid for derived types, but valid for structures:
  
            structure /header/
--- 3213,3222 ----
  GNU Fortran implements STRUCTURES like derived types with the following
  rules and exceptions:
  
!    * Structures act like derived types with the 'SEQUENCE' attribute.
       Otherwise they may contain no specifiers.
  
!    * Structures may share names with other symbols.  For example, the
       following is invalid for derived types, but valid for structures:
  
            structure /header/
*************** rules and exceptions:
*** 3263,3269 ****
  
       The type name may be ommitted, in which case the structure type
       itself is anonymous, and other structures of the same type cannot
!      be instantiated. The following shows some examples:
  
            structure /appointment/
              ! nested structure definition: app_time is an array of two 'time'
--- 3233,3239 ----
  
       The type name may be ommitted, in which case the structure type
       itself is anonymous, and other structures of the same type cannot
!      be instantiated.  The following shows some examples:
  
            structure /appointment/
              ! nested structure definition: app_time is an array of two 'time'
*************** rules and exceptions:
*** 3287,3320 ****
              character(10) memo
            end structure
  
!    * Structures may contain `UNION' blocks. For more detail see the
       section on *note UNION and MAP::.
  
     * Structures support old-style initialization of components, like
!      those described in *note Old-style variable initialization::. For
       array initializers, an initializer may contain a repeat
!      specification of the form `<literal-integer> *
!      <constant-initializer>'. The value of the integer indicates the
       number of times to repeat the constant initializer when expanding
       the initializer list.
  
  
  File: gfortran.info,  Node: UNION and MAP,  Prev: STRUCTURE and RECORD,  Up: Extensions implemented in GNU Fortran
  
! 6.1.21 `UNION' and `MAP'
  ------------------------
  
  Unions are an old vendor extension which were commonly used with the
! non-standard *note STRUCTURE and RECORD:: extensions. Use of `UNION' and
! `MAP' is automatically enabled with `-fdec-structure'.
  
!    A `UNION' declaration occurs within a structure; within the
! definition of each union is a number of `MAP' blocks. Each `MAP' shares
  storage with its sibling maps (in the same union), and the size of the
  union is the size of the largest map within it, just as with unions in
  C. The major difference is that component references do not indicate
! which union or map the component is in (the compiler gets to figure
! that out).
  
     Here is a small example:
       structure /myunion/
--- 3257,3290 ----
              character(10) memo
            end structure
  
!    * Structures may contain 'UNION' blocks.  For more detail see the
       section on *note UNION and MAP::.
  
     * Structures support old-style initialization of components, like
!      those described in *note Old-style variable initialization::.  For
       array initializers, an initializer may contain a repeat
!      specification of the form '<literal-integer> *
!      <constant-initializer>'.  The value of the integer indicates the
       number of times to repeat the constant initializer when expanding
       the initializer list.
  
  
  File: gfortran.info,  Node: UNION and MAP,  Prev: STRUCTURE and RECORD,  Up: Extensions implemented in GNU Fortran
  
! 6.1.21 'UNION' and 'MAP'
  ------------------------
  
  Unions are an old vendor extension which were commonly used with the
! non-standard *note STRUCTURE and RECORD:: extensions.  Use of 'UNION'
! and 'MAP' is automatically enabled with '-fdec-structure'.
  
!    A 'UNION' declaration occurs within a structure; within the
! definition of each union is a number of 'MAP' blocks.  Each 'MAP' shares
  storage with its sibling maps (in the same union), and the size of the
  union is the size of the largest map within it, just as with unions in
  C. The major difference is that component references do not indicate
! which union or map the component is in (the compiler gets to figure that
! out).
  
     Here is a small example:
       structure /myunion/
*************** some features crucial to users in the fi
*** 3415,3422 ****
  existence of a number of important extensions to the language.  While
  some of the most useful or popular extensions are supported by the GNU
  Fortran compiler, not all existing extensions are supported.  This
! section aims at listing these extensions and offering advice on how
! best make code that uses them running with the GNU Fortran compiler.
  
  * Menu:
  
--- 3385,3392 ----
  existence of a number of important extensions to the language.  While
  some of the most useful or popular extensions are supported by the GNU
  Fortran compiler, not all existing extensions are supported.  This
! section aims at listing these extensions and offering advice on how best
! make code that uses them running with the GNU Fortran compiler.
  
  * Menu:
  
*************** best make code that uses them running wi
*** 3429,3440 ****
  
  File: gfortran.info,  Node: ENCODE and DECODE statements,  Next: Variable FORMAT expressions,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.1 `ENCODE' and `DECODE' statements
  --------------------------------------
  
! GNU Fortran does not support the `ENCODE' and `DECODE' statements.
! These statements are best replaced by `READ' and `WRITE' statements
! involving internal files (`CHARACTER' variables and arrays), which have
  been part of the Fortran standard since Fortran 77.  For example,
  replace a code fragment like
  
--- 3399,3410 ----
  
  File: gfortran.info,  Node: ENCODE and DECODE statements,  Next: Variable FORMAT expressions,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.1 'ENCODE' and 'DECODE' statements
  --------------------------------------
  
! GNU Fortran does not support the 'ENCODE' and 'DECODE' statements.
! These statements are best replaced by 'READ' and 'WRITE' statements
! involving internal files ('CHARACTER' variables and arrays), which have
  been part of the Fortran standard since Fortran 77.  For example,
  replace a code fragment like
  
*************** with the following:
*** 3471,3485 ****
  
  File: gfortran.info,  Node: Variable FORMAT expressions,  Next: Alternate complex function syntax,  Prev: ENCODE and DECODE statements,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.2 Variable `FORMAT' expressions
  -----------------------------------
  
! A variable `FORMAT' expression is format statement which includes angle
! brackets enclosing a Fortran expression: `FORMAT(I<N>)'.  GNU Fortran
  does not support this legacy extension.  The effect of variable format
  expressions can be reproduced by using the more powerful (and standard)
! combination of internal output and string formats.  For example,
! replace a code fragment like this:
  
             WRITE(6,20) INT1
        20   FORMAT(I<N+1>)
--- 3441,3455 ----
  
  File: gfortran.info,  Node: Variable FORMAT expressions,  Next: Alternate complex function syntax,  Prev: ENCODE and DECODE statements,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.2 Variable 'FORMAT' expressions
  -----------------------------------
  
! A variable 'FORMAT' expression is format statement which includes angle
! brackets enclosing a Fortran expression: 'FORMAT(I<N>)'.  GNU Fortran
  does not support this legacy extension.  The effect of variable format
  expressions can be reproduced by using the more powerful (and standard)
! combination of internal output and string formats.  For example, replace
! a code fragment like this:
  
             WRITE(6,20) INT1
        20   FORMAT(I<N+1>)
*************** File: gfortran.info,  Node: Alternate co
*** 3510,3542 ****
  6.2.3 Alternate complex function syntax
  ---------------------------------------
  
! Some Fortran compilers, including `g77', let the user declare complex
! functions with the syntax `COMPLEX FUNCTION name*16()', as well as
! `COMPLEX*16 FUNCTION name()'.  Both are non-standard, legacy
! extensions.  `gfortran' accepts the latter form, which is more common,
! but not the former.
  
  
  File: gfortran.info,  Node: Volatile COMMON blocks,  Next: OPEN( ... NAME=),  Prev: Alternate complex function syntax,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.4 Volatile `COMMON' blocks
  ------------------------------
  
! Some Fortran compilers, including `g77', let the user declare `COMMON'
! with the `VOLATILE' attribute. This is invalid standard Fortran syntax
! and is not supported by `gfortran'.  Note that `gfortran' accepts
! `VOLATILE' variables in `COMMON' blocks since revision 4.3.
  
  
  File: gfortran.info,  Node: OPEN( ... NAME=),  Prev: Volatile COMMON blocks,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.5 `OPEN( ... NAME=)'
  ------------------------
  
! Some Fortran compilers, including `g77', let the user declare `OPEN(
! ... NAME=)'. This is invalid standard Fortran syntax and is not
! supported by `gfortran'.  `OPEN( ... NAME=)' should be replaced with
! `OPEN( ... FILE=)'.
  
  
  File: gfortran.info,  Node: Mixed-Language Programming,  Next: Coarray Programming,  Prev: Extensions,  Up: Top
--- 3480,3512 ----
  6.2.3 Alternate complex function syntax
  ---------------------------------------
  
! Some Fortran compilers, including 'g77', let the user declare complex
! functions with the syntax 'COMPLEX FUNCTION name*16()', as well as
! 'COMPLEX*16 FUNCTION name()'.  Both are non-standard, legacy extensions.
! 'gfortran' accepts the latter form, which is more common, but not the
! former.
  
  
  File: gfortran.info,  Node: Volatile COMMON blocks,  Next: OPEN( ... NAME=),  Prev: Alternate complex function syntax,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.4 Volatile 'COMMON' blocks
  ------------------------------
  
! Some Fortran compilers, including 'g77', let the user declare 'COMMON'
! with the 'VOLATILE' attribute.  This is invalid standard Fortran syntax
! and is not supported by 'gfortran'.  Note that 'gfortran' accepts
! 'VOLATILE' variables in 'COMMON' blocks since revision 4.3.
  
  
  File: gfortran.info,  Node: OPEN( ... NAME=),  Prev: Volatile COMMON blocks,  Up: Extensions not implemented in GNU Fortran
  
! 6.2.5 'OPEN( ... NAME=)'
  ------------------------
  
! Some Fortran compilers, including 'g77', let the user declare 'OPEN( ...
! NAME=)'.  This is invalid standard Fortran syntax and is not supported
! by 'gfortran'.  'OPEN( ... NAME=)' should be replaced with 'OPEN( ...
! FILE=)'.
  
  
  File: gfortran.info,  Node: Mixed-Language Programming,  Next: Coarray Programming,  Prev: Extensions,  Up: Top
*************** File: gfortran.info,  Node: Mixed-Langua
*** 3551,3560 ****
  * Non-Fortran Main Program::
  * Naming and argument-passing conventions::
  
!    This chapter is about mixed-language interoperability, but also
! applies if one links Fortran code compiled by different compilers.  In
! most cases, use of the C Binding features of the Fortran 2003 standard
! is sufficient, and their use is highly recommended.
  
  
  File: gfortran.info,  Node: Interoperability with C,  Next: GNU Fortran Compiler Directives,  Up: Mixed-Language Programming
--- 3521,3530 ----
  * Non-Fortran Main Program::
  * Naming and argument-passing conventions::
  
! This chapter is about mixed-language interoperability, but also applies
! if one links Fortran code compiled by different compilers.  In most
! cases, use of the C Binding features of the Fortran 2003 standard is
! sufficient, and their use is highly recommended.
  
  
  File: gfortran.info,  Node: Interoperability with C,  Next: GNU Fortran Compiler Directives,  Up: Mixed-Language Programming
*************** File: gfortran.info,  Node: Interoperabi
*** 3571,3591 ****
  * Working with Pointers::
  * Further Interoperability of Fortran with C::
  
!    Since Fortran 2003 (ISO/IEC 1539-1:2004(E)) there is a standardized
! way to generate procedure and derived-type declarations and global
! variables which are interoperable with C (ISO/IEC 9899:1999).  The
! `bind(C)' attribute has been added to inform the compiler that a symbol
! shall be interoperable with C; also, some constraints are added.  Note,
! however, that not all C features have a Fortran equivalent or vice
! versa.  For instance, neither C's unsigned integers nor C's functions
! with variable number of arguments have an equivalent in Fortran.
  
!    Note that array dimensions are reversely ordered in C and that
! arrays in C always start with index 0 while in Fortran they start by
! default with 1.  Thus, an array declaration `A(n,m)' in Fortran matches
! `A[m][n]' in C and accessing the element `A(i,j)' matches
! `A[j-1][i-1]'.  The element following `A(i,j)' (C: `A[j-1][i-1]';
! assuming i < n) in memory is `A(i+1,j)' (C: `A[j-1][i]').
  
  
  File: gfortran.info,  Node: Intrinsic Types,  Next: Derived Types and struct,  Up: Interoperability with C
--- 3541,3561 ----
  * Working with Pointers::
  * Further Interoperability of Fortran with C::
  
! Since Fortran 2003 (ISO/IEC 1539-1:2004(E)) there is a standardized way
! to generate procedure and derived-type declarations and global variables
! which are interoperable with C (ISO/IEC 9899:1999).  The 'bind(C)'
! attribute has been added to inform the compiler that a symbol shall be
! interoperable with C; also, some constraints are added.  Note, however,
! that not all C features have a Fortran equivalent or vice versa.  For
! instance, neither C's unsigned integers nor C's functions with variable
! number of arguments have an equivalent in Fortran.
  
!    Note that array dimensions are reversely ordered in C and that arrays
! in C always start with index 0 while in Fortran they start by default
! with 1.  Thus, an array declaration 'A(n,m)' in Fortran matches
! 'A[m][n]' in C and accessing the element 'A(i,j)' matches 'A[j-1][i-1]'.
! The element following 'A(i,j)' (C: 'A[j-1][i-1]'; assuming i < n) in
! memory is 'A(i+1,j)' (C: 'A[j-1][i]').
  
  
  File: gfortran.info,  Node: Intrinsic Types,  Next: Derived Types and struct,  Up: Interoperability with C
*************** File: gfortran.info,  Node: Intrinsic Ty
*** 3594,3613 ****
  ---------------------
  
  In order to ensure that exactly the same variable type and kind is used
! in C and Fortran, the named constants shall be used which are defined
! in the `ISO_C_BINDING' intrinsic module.  That module contains named
  constants for kind parameters and character named constants for the
! escape sequences in C.  For a list of the constants, see *note
  ISO_C_BINDING::.
  
     For logical types, please note that the Fortran standard only
! guarantees interoperability between C99's `_Bool' and Fortran's
! `C_Bool'-kind logicals and C99 defines that `true' has the value 1 and
! `false' the value 0.  Using any other integer value with GNU Fortran's
! `LOGICAL' (with any kind parameter) gives an undefined result.
! (Passing other integer values than 0 and 1 to GCC's `_Bool' is also
! undefined, unless the integer is explicitly or implicitly casted to
! `_Bool'.)
  
  
  File: gfortran.info,  Node: Derived Types and struct,  Next: Interoperable Global Variables,  Prev: Intrinsic Types,  Up: Interoperability with C
--- 3564,3582 ----
  ---------------------
  
  In order to ensure that exactly the same variable type and kind is used
! in C and Fortran, the named constants shall be used which are defined in
! the 'ISO_C_BINDING' intrinsic module.  That module contains named
  constants for kind parameters and character named constants for the
! escape sequences in C. For a list of the constants, see *note
  ISO_C_BINDING::.
  
     For logical types, please note that the Fortran standard only
! guarantees interoperability between C99's '_Bool' and Fortran's
! 'C_Bool'-kind logicals and C99 defines that 'true' has the value 1 and
! 'false' the value 0.  Using any other integer value with GNU Fortran's
! 'LOGICAL' (with any kind parameter) gives an undefined result.  (Passing
! other integer values than 0 and 1 to GCC's '_Bool' is also undefined,
! unless the integer is explicitly or implicitly casted to '_Bool'.)
  
  
  File: gfortran.info,  Node: Derived Types and struct,  Next: Interoperable Global Variables,  Prev: Intrinsic Types,  Up: Interoperability with C
*************** File: gfortran.info,  Node: Derived Type
*** 3615,3622 ****
  7.1.2 Derived Types and struct
  ------------------------------
  
! For compatibility of derived types with `struct', one needs to use the
! `BIND(C)' attribute in the type declaration.  For instance, the
  following type declaration
  
        USE ISO_C_BINDING
--- 3584,3591 ----
  7.1.2 Derived Types and struct
  ------------------------------
  
! For compatibility of derived types with 'struct', one needs to use the
! 'BIND(C)' attribute in the type declaration.  For instance, the
  following type declaration
  
        USE ISO_C_BINDING
*************** following type declaration
*** 3628,3634 ****
          CHARACTER(KIND=C_CHAR) :: str(5)
        END TYPE
  
!    matches the following `struct' declaration in C
  
        struct {
          int i1, i2;
--- 3597,3603 ----
          CHARACTER(KIND=C_CHAR) :: str(5)
        END TYPE
  
!    matches the following 'struct' declaration in C
  
        struct {
          int i1, i2;
*************** following type declaration
*** 3640,3649 ****
        } myType;
  
     Derived types with the C binding attribute shall not have the
! `sequence' attribute, type parameters, the `extends' attribute, nor
  type-bound procedures.  Every component must be of interoperable type
! and kind and may not have the `pointer' or `allocatable' attribute.
! The names of the components are irrelevant for interoperability.
  
     As there exist no direct Fortran equivalents, neither unions nor
  structs with bit field or variable-length array members are
--- 3609,3618 ----
        } myType;
  
     Derived types with the C binding attribute shall not have the
! 'sequence' attribute, type parameters, the 'extends' attribute, nor
  type-bound procedures.  Every component must be of interoperable type
! and kind and may not have the 'pointer' or 'allocatable' attribute.  The
! names of the components are irrelevant for interoperability.
  
     As there exist no direct Fortran equivalents, neither unions nor
  structs with bit field or variable-length array members are
*************** File: gfortran.info,  Node: Interoperabl
*** 3657,3665 ****
  
  Variables can be made accessible from C using the C binding attribute,
  optionally together with specifying a binding name.  Those variables
! have to be declared in the declaration part of a `MODULE', be of
! interoperable type, and have neither the `pointer' nor the
! `allocatable' attribute.
  
         MODULE m
           USE myType_module
--- 3626,3634 ----
  
  Variables can be made accessible from C using the C binding attribute,
  optionally together with specifying a binding name.  Those variables
! have to be declared in the declaration part of a 'MODULE', be of
! interoperable type, and have neither the 'pointer' nor the 'allocatable'
! attribute.
  
         MODULE m
           USE myType_module
*************** interoperable type, and have neither the
*** 3668,3681 ****
           type(myType), bind(C) :: tp
         END MODULE
  
!    Here, `_MyProject_flags' is the case-sensitive name of the variable
! as seen from C programs while `global_flag' is the case-insensitive
! name as seen from Fortran.  If no binding name is specified, as for TP,
! the C binding name is the (lowercase) Fortran binding name.  If a
! binding name is specified, only a single variable may be after the
! double colon.  Note of warning: You cannot use a global variable to
! access ERRNO of the C library as the C standard allows it to be a
! macro.  Use the `IERRNO' intrinsic (GNU extension) instead.
  
  
  File: gfortran.info,  Node: Interoperable Subroutines and Functions,  Next: Working with Pointers,  Prev: Interoperable Global Variables,  Up: Interoperability with C
--- 3637,3650 ----
           type(myType), bind(C) :: tp
         END MODULE
  
!    Here, '_MyProject_flags' is the case-sensitive name of the variable
! as seen from C programs while 'global_flag' is the case-insensitive name
! as seen from Fortran.  If no binding name is specified, as for TP, the C
! binding name is the (lowercase) Fortran binding name.  If a binding name
! is specified, only a single variable may be after the double colon.
! Note of warning: You cannot use a global variable to access ERRNO of the
! C library as the C standard allows it to be a macro.  Use the 'IERRNO'
! intrinsic (GNU extension) instead.
  
  
  File: gfortran.info,  Node: Interoperable Subroutines and Functions,  Next: Working with Pointers,  Prev: Interoperable Global Variables,  Up: Interoperability with C
*************** File: gfortran.info,  Node: Interoperabl
*** 3683,3703 ****
  7.1.4 Interoperable Subroutines and Functions
  ---------------------------------------------
  
! Subroutines and functions have to have the `BIND(C)' attribute to be
! compatible with C.  The dummy argument declaration is relatively
  straightforward.  However, one needs to be careful because C uses
  call-by-value by default while Fortran behaves usually similar to
  call-by-reference.  Furthermore, strings and pointers are handled
  differently.  Note that in Fortran 2003 and 2008 only explicit size and
  assumed-size arrays are supported but not assumed-shape or
! deferred-shape (i.e. allocatable or pointer) arrays.  However, those
  are allowed since the Technical Specification 29113, see *note Further
  Interoperability of Fortran with C::
  
!    To pass a variable by value, use the `VALUE' attribute.  Thus, the
  following C prototype
  
!      `int func(int i, int *j)'
  
     matches the Fortran declaration
  
--- 3652,3672 ----
  7.1.4 Interoperable Subroutines and Functions
  ---------------------------------------------
  
! Subroutines and functions have to have the 'BIND(C)' attribute to be
! compatible with C. The dummy argument declaration is relatively
  straightforward.  However, one needs to be careful because C uses
  call-by-value by default while Fortran behaves usually similar to
  call-by-reference.  Furthermore, strings and pointers are handled
  differently.  Note that in Fortran 2003 and 2008 only explicit size and
  assumed-size arrays are supported but not assumed-shape or
! deferred-shape (i.e.  allocatable or pointer) arrays.  However, those
  are allowed since the Technical Specification 29113, see *note Further
  Interoperability of Fortran with C::
  
!    To pass a variable by value, use the 'VALUE' attribute.  Thus, the
  following C prototype
  
!      int func(int i, int *j)
  
     matches the Fortran declaration
  
*************** following C prototype
*** 3706,3718 ****
           integer(c_int), VALUE :: i
           integer(c_int) :: j
  
!    Note that pointer arguments also frequently need the `VALUE'
  attribute, see *note Working with Pointers::.
  
     Strings are handled quite differently in C and Fortran.  In C a
! string is a `NUL'-terminated array of characters while in Fortran each
  string has a length associated with it and is thus not terminated (by
! e.g.  `NUL').  For example, if one wants to use the following C
  function,
  
         #include <stdio.h>
--- 3675,3687 ----
           integer(c_int), VALUE :: i
           integer(c_int) :: j
  
!    Note that pointer arguments also frequently need the 'VALUE'
  attribute, see *note Working with Pointers::.
  
     Strings are handled quite differently in C and Fortran.  In C a
! string is a 'NUL'-terminated array of characters while in Fortran each
  string has a length associated with it and is thus not terminated (by
! e.g.  'NUL').  For example, if one wants to use the following C
  function,
  
         #include <stdio.h>
*************** function,
*** 3732,3751 ****
         end interface
         call print_c(C_CHAR_"Hello World"//C_NULL_CHAR)
  
!    As the example shows, one needs to ensure that the string is `NUL'
! terminated.  Additionally, the dummy argument STRING of `print_C' is a
! length-one assumed-size array; using `character(len=*)' is not allowed.
! The example above uses `c_char_"Hello World"' to ensure the string
  literal has the right type; typically the default character kind and
! `c_char' are the same and thus `"Hello World"' is equivalent.  However,
  the standard does not guarantee this.
  
     The use of strings is now further illustrated using the C library
! function `strncpy', whose prototype is
  
         char *strncpy(char *restrict s1, const char *restrict s2, size_t n);
  
!    The function `strncpy' copies at most N characters from string S2 to
  S1 and returns S1.  In the following example, we ignore the return
  value:
  
--- 3701,3720 ----
         end interface
         call print_c(C_CHAR_"Hello World"//C_NULL_CHAR)
  
!    As the example shows, one needs to ensure that the string is 'NUL'
! terminated.  Additionally, the dummy argument STRING of 'print_C' is a
! length-one assumed-size array; using 'character(len=*)' is not allowed.
! The example above uses 'c_char_"Hello World"' to ensure the string
  literal has the right type; typically the default character kind and
! 'c_char' are the same and thus '"Hello World"' is equivalent.  However,
  the standard does not guarantee this.
  
     The use of strings is now further illustrated using the C library
! function 'strncpy', whose prototype is
  
         char *strncpy(char *restrict s1, const char *restrict s2, size_t n);
  
!    The function 'strncpy' copies at most N characters from string S2 to
  S1 and returns S1.  In the following example, we ignore the return
  value:
  
*************** File: gfortran.info,  Node: Working with
*** 3778,3787 ****
  ---------------------------
  
  C pointers are represented in Fortran via the special opaque derived
! type `type(c_ptr)' (with private components).  Thus one needs to use
  intrinsic conversion procedures to convert from or to C pointers.
  
!    For some applications, using an assumed type (`TYPE(*)') can be an
  alternative to a C pointer; see *note Further Interoperability of
  Fortran with C::.
  
--- 3747,3756 ----
  ---------------------------
  
  C pointers are represented in Fortran via the special opaque derived
! type 'type(c_ptr)' (with private components).  Thus one needs to use
  intrinsic conversion procedures to convert from or to C pointers.
  
!    For some applications, using an assumed type ('TYPE(*)') can be an
  alternative to a C pointer; see *note Further Interoperability of
  Fortran with C::.
  
*************** Fortran with C::.
*** 3798,3819 ****
         call c_f_pointer(cptr2, ps)
         call c_f_pointer(cptr2, pa, shape=[7])
  
!    When converting C to Fortran arrays, the one-dimensional `SHAPE'
  argument has to be passed.
  
     If a pointer is a dummy-argument of an interoperable procedure, it
! usually has to be declared using the `VALUE' attribute.  `void*'
! matches `TYPE(C_PTR), VALUE', while `TYPE(C_PTR)' alone matches
! `void**'.
  
     Procedure pointers are handled analogously to pointers; the C type is
! `TYPE(C_FUNPTR)' and the intrinsic conversion procedures are
! `C_F_PROCPOINTER' and `C_FUNLOC'.
  
     Let us consider two examples of actually passing a procedure pointer
  from C to Fortran and vice versa.  Note that these examples are also
! very similar to passing ordinary pointers between both languages. First,
! consider this code in C:
  
       /* Procedure implemented in Fortran.  */
       void get_values (void (*)(double));
--- 3767,3787 ----
         call c_f_pointer(cptr2, ps)
         call c_f_pointer(cptr2, pa, shape=[7])
  
!    When converting C to Fortran arrays, the one-dimensional 'SHAPE'
  argument has to be passed.
  
     If a pointer is a dummy-argument of an interoperable procedure, it
! usually has to be declared using the 'VALUE' attribute.  'void*' matches
! 'TYPE(C_PTR), VALUE', while 'TYPE(C_PTR)' alone matches 'void**'.
  
     Procedure pointers are handled analogously to pointers; the C type is
! 'TYPE(C_FUNPTR)' and the intrinsic conversion procedures are
! 'C_F_PROCPOINTER' and 'C_FUNLOC'.
  
     Let us consider two examples of actually passing a procedure pointer
  from C to Fortran and vice versa.  Note that these examples are also
! very similar to passing ordinary pointers between both languages.
! First, consider this code in C:
  
       /* Procedure implemented in Fortran.  */
       void get_values (void (*)(double));
*************** consider this code in C:
*** 3832,3840 ****
         get_values (&print_it);
       }
  
!    A matching implementation for `get_values' in Fortran, that correctly
  receives the procedure pointer from C and is able to call it, is given
! in the following `MODULE':
  
       MODULE m
         IMPLICIT NONE
--- 3800,3808 ----
         get_values (&print_it);
       }
  
!    A matching implementation for 'get_values' in Fortran, that correctly
  receives the procedure pointer from C and is able to call it, is given
! in the following 'MODULE':
  
       MODULE m
         IMPLICIT NONE
*************** File: gfortran.info,  Node: Further Inte
*** 3925,3990 ****
  
  The Technical Specification ISO/IEC TS 29113:2012 on further
  interoperability of Fortran with C extends the interoperability support
! of Fortran 2003 and Fortran 2008. Besides removing some restrictions
! and constraints, it adds assumed-type (`TYPE(*)') and assumed-rank
! (`dimension') variables and allows for interoperability of
  assumed-shape, assumed-rank and deferred-shape arrays, including
  allocatables and pointers.
  
     Note: Currently, GNU Fortran does not support the array descriptor
  (dope vector) as specified in the Technical Specification, but uses an
! array descriptor with different fields. The Chasm Language
! Interoperability Tools, `http://chasm-interop.sourceforge.net/',
! provide an interface to GNU Fortran's array descriptor.
  
     The Technical Specification adds the following new features, which
  are supported by GNU Fortran:
  
!    * The `ASYNCHRONOUS' attribute has been clarified and extended to
       allow its use with asynchronous communication in user-provided
       libraries such as in implementations of the Message Passing
       Interface specification.
  
!    * Many constraints have been relaxed, in particular for the `C_LOC'
!      and `C_F_POINTER' intrinsics.
  
!    * The `OPTIONAL' attribute is now allowed for dummy arguments; an
!      absent argument matches a `NULL' pointer.
  
!    * Assumed types (`TYPE(*)') have been added, which may only be used
       for dummy arguments.  They are unlimited polymorphic but contrary
!      to `CLASS(*)' they do not contain any type information, similar to
!      C's `void *' pointers.  Expressions of any type and kind can be
!      passed; thus, it can be used as replacement for `TYPE(C_PTR)',
!      avoiding the use of `C_LOC' in the caller.
  
!      Note, however, that `TYPE(*)' only accepts scalar arguments,
!      unless the `DIMENSION' is explicitly specified.  As `DIMENSION(*)'
!      only supports array (including array elements) but no scalars, it
!      is not a full replacement for `C_LOC'.  On the other hand,
!      assumed-type assumed-rank dummy arguments (`TYPE(*),
!      DIMENSION(..)') allow for both scalars and arrays, but require
!      special code on the callee side to handle the array descriptor.
  
!    * Assumed-rank arrays (`DIMENSION(..)') as dummy argument allow that
       scalars and arrays of any rank can be passed as actual argument.
!      As the Technical Specification does not provide for direct means
!      to operate with them, they have to be used either from the C side
!      or be converted using `C_LOC' and `C_F_POINTER' to scalars or
!      arrays of a specific rank. The rank can be determined using the
!      `RANK' intrinisic.
  
     Currently unimplemented:
  
     * GNU Fortran always uses an array descriptor, which does not match
!      the one of the Technical Specification. The
!      `ISO_Fortran_binding.h' header file and the C functions it
       specifies are not available.
  
     * Using assumed-shape, assumed-rank and deferred-shape arrays in
!      `BIND(C)' procedures is not fully supported. In particular, C
!      interoperable strings of other length than one are not supported
!      as this requires the new array descriptor.
  
  
  File: gfortran.info,  Node: GNU Fortran Compiler Directives,  Next: Non-Fortran Main Program,  Prev: Interoperability with C,  Up: Mixed-Language Programming
--- 3893,3958 ----
  
  The Technical Specification ISO/IEC TS 29113:2012 on further
  interoperability of Fortran with C extends the interoperability support
! of Fortran 2003 and Fortran 2008.  Besides removing some restrictions
! and constraints, it adds assumed-type ('TYPE(*)') and assumed-rank
! ('dimension') variables and allows for interoperability of
  assumed-shape, assumed-rank and deferred-shape arrays, including
  allocatables and pointers.
  
     Note: Currently, GNU Fortran does not support the array descriptor
  (dope vector) as specified in the Technical Specification, but uses an
! array descriptor with different fields.  The Chasm Language
! Interoperability Tools, <http://chasm-interop.sourceforge.net/>, provide
! an interface to GNU Fortran's array descriptor.
  
     The Technical Specification adds the following new features, which
  are supported by GNU Fortran:
  
!    * The 'ASYNCHRONOUS' attribute has been clarified and extended to
       allow its use with asynchronous communication in user-provided
       libraries such as in implementations of the Message Passing
       Interface specification.
  
!    * Many constraints have been relaxed, in particular for the 'C_LOC'
!      and 'C_F_POINTER' intrinsics.
  
!    * The 'OPTIONAL' attribute is now allowed for dummy arguments; an
!      absent argument matches a 'NULL' pointer.
  
!    * Assumed types ('TYPE(*)') have been added, which may only be used
       for dummy arguments.  They are unlimited polymorphic but contrary
!      to 'CLASS(*)' they do not contain any type information, similar to
!      C's 'void *' pointers.  Expressions of any type and kind can be
!      passed; thus, it can be used as replacement for 'TYPE(C_PTR)',
!      avoiding the use of 'C_LOC' in the caller.
  
!      Note, however, that 'TYPE(*)' only accepts scalar arguments, unless
!      the 'DIMENSION' is explicitly specified.  As 'DIMENSION(*)' only
!      supports array (including array elements) but no scalars, it is not
!      a full replacement for 'C_LOC'.  On the other hand, assumed-type
!      assumed-rank dummy arguments ('TYPE(*), DIMENSION(..)') allow for
!      both scalars and arrays, but require special code on the callee
!      side to handle the array descriptor.
  
!    * Assumed-rank arrays ('DIMENSION(..)') as dummy argument allow that
       scalars and arrays of any rank can be passed as actual argument.
!      As the Technical Specification does not provide for direct means to
!      operate with them, they have to be used either from the C side or
!      be converted using 'C_LOC' and 'C_F_POINTER' to scalars or arrays
!      of a specific rank.  The rank can be determined using the 'RANK'
!      intrinisic.
  
     Currently unimplemented:
  
     * GNU Fortran always uses an array descriptor, which does not match
!      the one of the Technical Specification.  The
!      'ISO_Fortran_binding.h' header file and the C functions it
       specifies are not available.
  
     * Using assumed-shape, assumed-rank and deferred-shape arrays in
!      'BIND(C)' procedures is not fully supported.  In particular, C
!      interoperable strings of other length than one are not supported as
!      this requires the new array descriptor.
  
  
  File: gfortran.info,  Node: GNU Fortran Compiler Directives,  Next: Non-Fortran Main Program,  Prev: Interoperability with C,  Up: Mixed-Language Programming
*************** allow the user to choose specific implem
*** 3998,4014 ****
  directives can be used to set attributes of variables and procedures
  which are not part of the standard.  Whether a given attribute is
  supported and its exact effects depend on both the operating system and
! on the processor; see *note C Extensions: (gcc)Top.  for details.
  
     For procedures and procedure pointers, the following attributes can
  be used to change the calling convention:
  
!    * `CDECL' - standard C calling convention
! 
!    * `STDCALL' - convention where the called procedure pops the stack
! 
!    * `FASTCALL' - part of the arguments are passed via registers
!      instead using the stack
  
     Besides changing the calling convention, the attributes also
  influence the decoration of the symbol name, e.g., by a leading
--- 3966,3980 ----
  directives can be used to set attributes of variables and procedures
  which are not part of the standard.  Whether a given attribute is
  supported and its exact effects depend on both the operating system and
! on the processor; see *note C Extensions: (gcc)Top. for details.
  
     For procedures and procedure pointers, the following attributes can
  be used to change the calling convention:
  
!    * 'CDECL' - standard C calling convention
!    * 'STDCALL' - convention where the called procedure pops the stack
!    * 'FASTCALL' - part of the arguments are passed via registers instead
!      using the stack
  
     Besides changing the calling convention, the attributes also
  influence the decoration of the symbol name, e.g., by a leading
*************** the stack.  When assigning a procedure t
*** 4017,4055 ****
  should use the same calling convention.
  
     On some systems, procedures and global variables (module variables
! and `COMMON' blocks) need special handling to be accessible when they
  are in a shared library.  The following attributes are available:
  
!    * `DLLEXPORT' - provide a global pointer to a pointer in the DLL
! 
!    * `DLLIMPORT' - reference the function or variable using a global
       pointer
  
!    For dummy arguments, the `NO_ARG_CHECK' attribute can be used; in
! other compilers, it is also known as `IGNORE_TKR'.  For dummy arguments
  with this attribute actual arguments of any type and kind (similar to
! `TYPE(*)'), scalars and arrays of any rank (no equivalent in Fortran
! standard) are accepted.  As with `TYPE(*)', the argument is unlimited
  polymorphic and no type information is available.  Additionally, the
! argument may only be passed to dummy arguments with the `NO_ARG_CHECK'
! attribute and as argument to the `PRESENT' intrinsic function and to
! `C_LOC' of the `ISO_C_BINDING' module.
  
!    Variables with `NO_ARG_CHECK' attribute shall be of assumed-type
! (`TYPE(*)'; recommended) or of type `INTEGER', `LOGICAL', `REAL' or
! `COMPLEX'. They shall not have the `ALLOCATE', `CODIMENSION',
! `INTENT(OUT)', `POINTER' or `VALUE' attribute; furthermore, they shall
! be either scalar or of assumed-size (`dimension(*)'). As `TYPE(*)', the
! `NO_ARG_CHECK' attribute requires an explicit interface.
  
!    * `NO_ARG_CHECK' - disable the type, kind and rank checking
  
     The attributes are specified using the syntax
  
!    `!GCC$ ATTRIBUTES' ATTRIBUTE-LIST `::' VARIABLE-LIST
  
     where in free-form source code only whitespace is allowed before
! `!GCC$' and in fixed-form source code `!GCC$', `cGCC$' or `*GCC$' shall
  start in the first column.
  
     For procedures, the compiler directives shall be placed into the body
--- 3983,4020 ----
  should use the same calling convention.
  
     On some systems, procedures and global variables (module variables
! and 'COMMON' blocks) need special handling to be accessible when they
  are in a shared library.  The following attributes are available:
  
!    * 'DLLEXPORT' - provide a global pointer to a pointer in the DLL
!    * 'DLLIMPORT' - reference the function or variable using a global
       pointer
  
!    For dummy arguments, the 'NO_ARG_CHECK' attribute can be used; in
! other compilers, it is also known as 'IGNORE_TKR'.  For dummy arguments
  with this attribute actual arguments of any type and kind (similar to
! 'TYPE(*)'), scalars and arrays of any rank (no equivalent in Fortran
! standard) are accepted.  As with 'TYPE(*)', the argument is unlimited
  polymorphic and no type information is available.  Additionally, the
! argument may only be passed to dummy arguments with the 'NO_ARG_CHECK'
! attribute and as argument to the 'PRESENT' intrinsic function and to
! 'C_LOC' of the 'ISO_C_BINDING' module.
  
!    Variables with 'NO_ARG_CHECK' attribute shall be of assumed-type
! ('TYPE(*)'; recommended) or of type 'INTEGER', 'LOGICAL', 'REAL' or
! 'COMPLEX'.  They shall not have the 'ALLOCATE', 'CODIMENSION',
! 'INTENT(OUT)', 'POINTER' or 'VALUE' attribute; furthermore, they shall
! be either scalar or of assumed-size ('dimension(*)').  As 'TYPE(*)', the
! 'NO_ARG_CHECK' attribute requires an explicit interface.
  
!    * 'NO_ARG_CHECK' - disable the type, kind and rank checking
  
     The attributes are specified using the syntax
  
!    '!GCC$ ATTRIBUTES' ATTRIBUTE-LIST '::' VARIABLE-LIST
  
     where in free-form source code only whitespace is allowed before
! '!GCC$' and in fixed-form source code '!GCC$', 'cGCC$' or '*GCC$' shall
  start in the first column.
  
     For procedures, the compiler directives shall be placed into the body
*************** File: gfortran.info,  Node: Non-Fortran
*** 4071,4101 ****
  * _gfortran_set_fpe:: Set when a Floating Point Exception should be raised
  * _gfortran_set_max_subrecord_length:: Set subrecord length
  
!    Even if you are doing mixed-language programming, it is very likely
! that you do not need to know or use the information in this section.
! Since it is about the internal structure of GNU Fortran, it may also
! change in GCC minor releases.
  
!    When you compile a `PROGRAM' with GNU Fortran, a function with the
! name `main' (in the symbol table of the object file) is generated,
! which initializes the libgfortran library and then calls the actual
! program which uses the name `MAIN__', for historic reasons.  If you
! link GNU Fortran compiled procedures to, e.g., a C or C++ program or to
! a Fortran program compiled by a different compiler, the libgfortran
! library is not initialized and thus a few intrinsic procedures do not
! work properly, e.g.  those for obtaining the command-line arguments.
  
!    Therefore, if your `PROGRAM' is not compiled with GNU Fortran and
! the GNU Fortran compiled procedures require intrinsics relying on the
  library initialization, you need to initialize the library yourself.
! Using the default options, gfortran calls `_gfortran_set_args' and
! `_gfortran_set_options'.  The initialization of the former is needed if
! the called procedures access the command line (and for backtracing);
! the latter sets some flags based on the standard chosen or to enable
  backtracing.  In typical programs, it is not necessary to call any
  initialization function.
  
!    If your `PROGRAM' is compiled with GNU Fortran, you shall not call
  any of the following functions.  The libgfortran initialization
  functions are shown in C syntax but using C bindings they are also
  accessible from Fortran.
--- 4036,4066 ----
  * _gfortran_set_fpe:: Set when a Floating Point Exception should be raised
  * _gfortran_set_max_subrecord_length:: Set subrecord length
  
! Even if you are doing mixed-language programming, it is very likely that
! you do not need to know or use the information in this section.  Since
! it is about the internal structure of GNU Fortran, it may also change in
! GCC minor releases.
  
!    When you compile a 'PROGRAM' with GNU Fortran, a function with the
! name 'main' (in the symbol table of the object file) is generated, which
! initializes the libgfortran library and then calls the actual program
! which uses the name 'MAIN__', for historic reasons.  If you link GNU
! Fortran compiled procedures to, e.g., a C or C++ program or to a Fortran
! program compiled by a different compiler, the libgfortran library is not
! initialized and thus a few intrinsic procedures do not work properly,
! e.g.  those for obtaining the command-line arguments.
  
!    Therefore, if your 'PROGRAM' is not compiled with GNU Fortran and the
! GNU Fortran compiled procedures require intrinsics relying on the
  library initialization, you need to initialize the library yourself.
! Using the default options, gfortran calls '_gfortran_set_args' and
! '_gfortran_set_options'.  The initialization of the former is needed if
! the called procedures access the command line (and for backtracing); the
! latter sets some flags based on the standard chosen or to enable
  backtracing.  In typical programs, it is not necessary to call any
  initialization function.
  
!    If your 'PROGRAM' is compiled with GNU Fortran, you shall not call
  any of the following functions.  The libgfortran initialization
  functions are shown in C syntax but using C bindings they are also
  accessible from Fortran.
*************** accessible from Fortran.
*** 4103,4124 ****
  
  File: gfortran.info,  Node: _gfortran_set_args,  Next: _gfortran_set_options,  Up: Non-Fortran Main Program
  
! 7.3.1 `_gfortran_set_args' -- Save command-line arguments
  ---------------------------------------------------------
  
  _Description_:
!      `_gfortran_set_args' saves the command-line arguments; this
!      initialization is required if any of the command-line intrinsics
!      is called.  Additionally, it shall be called if backtracing is
!      enabled (see `_gfortran_set_options').
  
  _Syntax_:
!      `void _gfortran_set_args (int argc, char *argv[])'
  
  _Arguments_:
!      ARGC       number of command line argument strings
!      ARGV       the command-line argument strings; argv[0] is
!                 the pathname of the executable itself.
  
  _Example_:
            int main (int argc, char *argv[])
--- 4068,4089 ----
  
  File: gfortran.info,  Node: _gfortran_set_args,  Next: _gfortran_set_options,  Up: Non-Fortran Main Program
  
! 7.3.1 '_gfortran_set_args' -- Save command-line arguments
  ---------------------------------------------------------
  
  _Description_:
!      '_gfortran_set_args' saves the command-line arguments; this
!      initialization is required if any of the command-line intrinsics is
!      called.  Additionally, it shall be called if backtracing is enabled
!      (see '_gfortran_set_options').
  
  _Syntax_:
!      'void _gfortran_set_args (int argc, char *argv[])'
  
  _Arguments_:
!      ARGC        number of command line argument strings
!      ARGV        the command-line argument strings; argv[0] is
!                  the pathname of the executable itself.
  
  _Example_:
            int main (int argc, char *argv[])
*************** _Example_:
*** 4131,4199 ****
  
  File: gfortran.info,  Node: _gfortran_set_options,  Next: _gfortran_set_convert,  Prev: _gfortran_set_args,  Up: Non-Fortran Main Program
  
! 7.3.2 `_gfortran_set_options' -- Set library option flags
  ---------------------------------------------------------
  
  _Description_:
!      `_gfortran_set_options' sets several flags related to the Fortran
       standard to be used, whether backtracing should be enabled and
       whether range checks should be performed.  The syntax allows for
!      upward compatibility since the number of passed flags is
!      specified; for non-passed flags, the default value is used.  See
!      also *note Code Gen Options::.  Please note that not all flags are
!      actually used.
  
  _Syntax_:
!      `void _gfortran_set_options (int num, int options[])'
  
  _Arguments_:
!      NUM        number of options passed
!      ARGV       The list of flag values
  
  _option flag list_:
!      OPTION[0]  Allowed standard; can give run-time errors if
!                 e.g. an input-output edit descriptor is
!                 invalid in a given standard.  Possible values
!                 are (bitwise or-ed) `GFC_STD_F77' (1),
!                 `GFC_STD_F95_OBS' (2), `GFC_STD_F95_DEL' (4),
!                 `GFC_STD_F95' (8), `GFC_STD_F2003' (16),
!                 `GFC_STD_GNU' (32), `GFC_STD_LEGACY' (64),
!                 `GFC_STD_F2008' (128), `GFC_STD_F2008_OBS'
!                 (256) and GFC_STD_F2008_TS (512). Default:
!                 `GFC_STD_F95_OBS | GFC_STD_F95_DEL |
!                 GFC_STD_F95 | GFC_STD_F2003 | GFC_STD_F2008 |
!                 GFC_STD_F2008_TS | GFC_STD_F2008_OBS |
!                 GFC_STD_F77 | GFC_STD_GNU | GFC_STD_LEGACY'.
!      OPTION[1]  Standard-warning flag; prints a warning to
!                 standard error.  Default: `GFC_STD_F95_DEL |
!                 GFC_STD_LEGACY'.
!      OPTION[2]  If non zero, enable pedantic checking.
!                 Default: off.
!      OPTION[3]  Unused.
!      OPTION[4]  If non zero, enable backtracing on run-time
!                 errors.  Default: off. (Default in the
!                 compiler: on.)  Note: Installs a signal
!                 handler and requires command-line
!                 initialization using `_gfortran_set_args'.
!      OPTION[5]  If non zero, supports signed zeros.  Default:
!                 enabled.
!      OPTION[6]  Enables run-time checking.  Possible values
!                 are (bitwise or-ed): GFC_RTCHECK_BOUNDS (1),
!                 GFC_RTCHECK_ARRAY_TEMPS (2),
!                 GFC_RTCHECK_RECURSION (4), GFC_RTCHECK_DO
!                 (16), GFC_RTCHECK_POINTER (32).  Default:
!                 disabled.
!      OPTION[7]  Unused.
!      OPTION[8]  Show a warning when invoking `STOP' and `ERROR
!                 STOP' if a floating-point exception occurred.
!                 Possible values are (bitwise or-ed)
!                 `GFC_FPE_INVALID' (1), `GFC_FPE_DENORMAL' (2),
!                 `GFC_FPE_ZERO' (4), `GFC_FPE_OVERFLOW' (8),
!                 `GFC_FPE_UNDERFLOW' (16), `GFC_FPE_INEXACT'
!                 (32). Default: None (0).  (Default in the
!                 compiler: `GFC_FPE_INVALID | GFC_FPE_DENORMAL |
!                 GFC_FPE_ZERO | GFC_FPE_OVERFLOW |
!                 GFC_FPE_UNDERFLOW'.)
  
  _Example_:
              /* Use gfortran 4.9 default options.  */
--- 4096,4163 ----
  
  File: gfortran.info,  Node: _gfortran_set_options,  Next: _gfortran_set_convert,  Prev: _gfortran_set_args,  Up: Non-Fortran Main Program
  
! 7.3.2 '_gfortran_set_options' -- Set library option flags
  ---------------------------------------------------------
  
  _Description_:
!      '_gfortran_set_options' sets several flags related to the Fortran
       standard to be used, whether backtracing should be enabled and
       whether range checks should be performed.  The syntax allows for
!      upward compatibility since the number of passed flags is specified;
!      for non-passed flags, the default value is used.  See also *note
!      Code Gen Options::.  Please note that not all flags are actually
!      used.
  
  _Syntax_:
!      'void _gfortran_set_options (int num, int options[])'
  
  _Arguments_:
!      NUM         number of options passed
!      ARGV        The list of flag values
  
  _option flag list_:
!      OPTION[0]   Allowed standard; can give run-time errors if
!                  e.g.  an input-output edit descriptor is invalid
!                  in a given standard.  Possible values are
!                  (bitwise or-ed) 'GFC_STD_F77' (1),
!                  'GFC_STD_F95_OBS' (2), 'GFC_STD_F95_DEL' (4),
!                  'GFC_STD_F95' (8), 'GFC_STD_F2003' (16),
!                  'GFC_STD_GNU' (32), 'GFC_STD_LEGACY' (64),
!                  'GFC_STD_F2008' (128), 'GFC_STD_F2008_OBS' (256)
!                  and GFC_STD_F2008_TS (512).  Default:
!                  'GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_F95
!                  | GFC_STD_F2003 | GFC_STD_F2008 |
!                  GFC_STD_F2008_TS | GFC_STD_F2008_OBS |
!                  GFC_STD_F77 | GFC_STD_GNU | GFC_STD_LEGACY'.
!      OPTION[1]   Standard-warning flag; prints a warning to
!                  standard error.  Default: 'GFC_STD_F95_DEL |
!                  GFC_STD_LEGACY'.
!      OPTION[2]   If non zero, enable pedantic checking.  Default:
!                  off.
!      OPTION[3]   Unused.
!      OPTION[4]   If non zero, enable backtracing on run-time
!                  errors.  Default: off.  (Default in the
!                  compiler: on.)  Note: Installs a signal handler
!                  and requires command-line initialization using
!                  '_gfortran_set_args'.
!      OPTION[5]   If non zero, supports signed zeros.  Default:
!                  enabled.
!      OPTION[6]   Enables run-time checking.  Possible values are
!                  (bitwise or-ed): GFC_RTCHECK_BOUNDS (1),
!                  GFC_RTCHECK_ARRAY_TEMPS (2),
!                  GFC_RTCHECK_RECURSION (4), GFC_RTCHECK_DO (16),
!                  GFC_RTCHECK_POINTER (32).  Default: disabled.
!      OPTION[7]   Unused.
!      OPTION[8]   Show a warning when invoking 'STOP' and 'ERROR
!                  STOP' if a floating-point exception occurred.
!                  Possible values are (bitwise or-ed)
!                  'GFC_FPE_INVALID' (1), 'GFC_FPE_DENORMAL' (2),
!                  'GFC_FPE_ZERO' (4), 'GFC_FPE_OVERFLOW' (8),
!                  'GFC_FPE_UNDERFLOW' (16), 'GFC_FPE_INEXACT'
!                  (32).  Default: None (0).  (Default in the
!                  compiler: 'GFC_FPE_INVALID | GFC_FPE_DENORMAL |
!                  GFC_FPE_ZERO | GFC_FPE_OVERFLOW |
!                  GFC_FPE_UNDERFLOW'.)
  
  _Example_:
              /* Use gfortran 4.9 default options.  */
*************** _Example_:
*** 4203,4223 ****
  
  File: gfortran.info,  Node: _gfortran_set_convert,  Next: _gfortran_set_record_marker,  Prev: _gfortran_set_options,  Up: Non-Fortran Main Program
  
! 7.3.3 `_gfortran_set_convert' -- Set endian conversion
  ------------------------------------------------------
  
  _Description_:
!      `_gfortran_set_convert' set the representation of data for
       unformatted files.
  
  _Syntax_:
!      `void _gfortran_set_convert (int conv)'
  
  _Arguments_:
!      CONV       Endian conversion, possible values:
!                 GFC_CONVERT_NATIVE (0, default),
!                 GFC_CONVERT_SWAP (1), GFC_CONVERT_BIG (2),
!                 GFC_CONVERT_LITTLE (3).
  
  _Example_:
            int main (int argc, char *argv[])
--- 4167,4187 ----
  
  File: gfortran.info,  Node: _gfortran_set_convert,  Next: _gfortran_set_record_marker,  Prev: _gfortran_set_options,  Up: Non-Fortran Main Program
  
! 7.3.3 '_gfortran_set_convert' -- Set endian conversion
  ------------------------------------------------------
  
  _Description_:
!      '_gfortran_set_convert' set the representation of data for
       unformatted files.
  
  _Syntax_:
!      'void _gfortran_set_convert (int conv)'
  
  _Arguments_:
!      CONV        Endian conversion, possible values:
!                  GFC_CONVERT_NATIVE (0, default),
!                  GFC_CONVERT_SWAP (1), GFC_CONVERT_BIG (2),
!                  GFC_CONVERT_LITTLE (3).
  
  _Example_:
            int main (int argc, char *argv[])
*************** _Example_:
*** 4231,4249 ****
  
  File: gfortran.info,  Node: _gfortran_set_record_marker,  Next: _gfortran_set_fpe,  Prev: _gfortran_set_convert,  Up: Non-Fortran Main Program
  
! 7.3.4 `_gfortran_set_record_marker' -- Set length of record markers
  -------------------------------------------------------------------
  
  _Description_:
!      `_gfortran_set_record_marker' sets the length of record markers
!      for unformatted files.
  
  _Syntax_:
!      `void _gfortran_set_record_marker (int val)'
  
  _Arguments_:
!      VAL        Length of the record marker; valid values are
!                 4 and 8.  Default is 4.
  
  _Example_:
            int main (int argc, char *argv[])
--- 4195,4213 ----
  
  File: gfortran.info,  Node: _gfortran_set_record_marker,  Next: _gfortran_set_fpe,  Prev: _gfortran_set_convert,  Up: Non-Fortran Main Program
  
! 7.3.4 '_gfortran_set_record_marker' -- Set length of record markers
  -------------------------------------------------------------------
  
  _Description_:
!      '_gfortran_set_record_marker' sets the length of record markers for
!      unformatted files.
  
  _Syntax_:
!      'void _gfortran_set_record_marker (int val)'
  
  _Arguments_:
!      VAL         Length of the record marker; valid values are 4
!                  and 8.  Default is 4.
  
  _Example_:
            int main (int argc, char *argv[])
*************** _Example_:
*** 4257,4280 ****
  
  File: gfortran.info,  Node: _gfortran_set_fpe,  Next: _gfortran_set_max_subrecord_length,  Prev: _gfortran_set_record_marker,  Up: Non-Fortran Main Program
  
! 7.3.5 `_gfortran_set_fpe' -- Enable floating point exception traps
  ------------------------------------------------------------------
  
  _Description_:
!      `_gfortran_set_fpe' enables floating point exception traps for the
       specified exceptions.  On most systems, this will result in a
       SIGFPE signal being sent and the program being aborted.
  
  _Syntax_:
!      `void _gfortran_set_fpe (int val)'
  
  _Arguments_:
!      OPTION[0]  IEEE exceptions.  Possible values are (bitwise
!                 or-ed) zero (0, default) no trapping,
!                 `GFC_FPE_INVALID' (1), `GFC_FPE_DENORMAL' (2),
!                 `GFC_FPE_ZERO' (4), `GFC_FPE_OVERFLOW' (8),
!                 `GFC_FPE_UNDERFLOW' (16), and
!                 `GFC_FPE_INEXACT' (32).
  
  _Example_:
            int main (int argc, char *argv[])
--- 4221,4244 ----
  
  File: gfortran.info,  Node: _gfortran_set_fpe,  Next: _gfortran_set_max_subrecord_length,  Prev: _gfortran_set_record_marker,  Up: Non-Fortran Main Program
  
! 7.3.5 '_gfortran_set_fpe' -- Enable floating point exception traps
  ------------------------------------------------------------------
  
  _Description_:
!      '_gfortran_set_fpe' enables floating point exception traps for the
       specified exceptions.  On most systems, this will result in a
       SIGFPE signal being sent and the program being aborted.
  
  _Syntax_:
!      'void _gfortran_set_fpe (int val)'
  
  _Arguments_:
!      OPTION[0]   IEEE exceptions.  Possible values are (bitwise
!                  or-ed) zero (0, default) no trapping,
!                  'GFC_FPE_INVALID' (1), 'GFC_FPE_DENORMAL' (2),
!                  'GFC_FPE_ZERO' (4), 'GFC_FPE_OVERFLOW' (8),
!                  'GFC_FPE_UNDERFLOW' (16), and 'GFC_FPE_INEXACT'
!                  (32).
  
  _Example_:
            int main (int argc, char *argv[])
*************** _Example_:
*** 4289,4309 ****
  
  File: gfortran.info,  Node: _gfortran_set_max_subrecord_length,  Prev: _gfortran_set_fpe,  Up: Non-Fortran Main Program
  
! 7.3.6 `_gfortran_set_max_subrecord_length' -- Set subrecord length
  ------------------------------------------------------------------
  
  _Description_:
!      `_gfortran_set_max_subrecord_length' set the maximum length for a
       subrecord.  This option only makes sense for testing and debugging
       of unformatted I/O.
  
  _Syntax_:
!      `void _gfortran_set_max_subrecord_length (int val)'
  
  _Arguments_:
!      VAL        the maximum length for a subrecord; the
!                 maximum permitted value is 2147483639, which
!                 is also the default.
  
  _Example_:
            int main (int argc, char *argv[])
--- 4253,4273 ----
  
  File: gfortran.info,  Node: _gfortran_set_max_subrecord_length,  Prev: _gfortran_set_fpe,  Up: Non-Fortran Main Program
  
! 7.3.6 '_gfortran_set_max_subrecord_length' -- Set subrecord length
  ------------------------------------------------------------------
  
  _Description_:
!      '_gfortran_set_max_subrecord_length' set the maximum length for a
       subrecord.  This option only makes sense for testing and debugging
       of unformatted I/O.
  
  _Syntax_:
!      'void _gfortran_set_max_subrecord_length (int val)'
  
  _Arguments_:
!      VAL         the maximum length for a subrecord; the maximum
!                  permitted value is 2147483639, which is also the
!                  default.
  
  _Example_:
            int main (int argc, char *argv[])
*************** File: gfortran.info,  Node: Naming conve
*** 4339,4366 ****
  ------------------------
  
  According the Fortran standard, valid Fortran names consist of a letter
! between `A' to `Z', `a' to `z', digits `0', `1' to `9' and underscores
! (`_') with the restriction that names may only start with a letter.  As
! vendor extension, the dollar sign (`$') is additionally permitted with
! the option `-fdollar-ok', but not as first character and only if the
  target system supports it.
  
     By default, the procedure name is the lower-cased Fortran name with
! an appended underscore (`_'); using `-fno-underscoring' no underscore
! is appended while `-fsecond-underscore' appends two underscores.
! Depending on the target system and the calling convention, the
! procedure might be additionally dressed; for instance, on 32bit Windows
! with `stdcall', an at-sign `@' followed by an integer number is
! appended.  For the changing the calling convention, see *note GNU
! Fortran Compiler Directives::.
  
!    For common blocks, the same convention is used, i.e. by default an
  underscore is appended to the lower-cased Fortran name.  Blank commons
! have the name `__BLNK__'.
  
     For procedures and variables declared in the specification space of a
! module, the name is formed by `__', followed by the lower-cased module
! name, `_MOD_', and the lower-cased Fortran name.  Note that no
  underscore is appended.
  
  
--- 4303,4329 ----
  ------------------------
  
  According the Fortran standard, valid Fortran names consist of a letter
! between 'A' to 'Z', 'a' to 'z', digits '0', '1' to '9' and underscores
! ('_') with the restriction that names may only start with a letter.  As
! vendor extension, the dollar sign ('$') is additionally permitted with
! the option '-fdollar-ok', but not as first character and only if the
  target system supports it.
  
     By default, the procedure name is the lower-cased Fortran name with
! an appended underscore ('_'); using '-fno-underscoring' no underscore is
! appended while '-fsecond-underscore' appends two underscores.  Depending
! on the target system and the calling convention, the procedure might be
! additionally dressed; for instance, on 32bit Windows with 'stdcall', an
! at-sign '@' followed by an integer number is appended.  For the changing
! the calling convention, see *note GNU Fortran Compiler Directives::.
  
!    For common blocks, the same convention is used, i.e.  by default an
  underscore is appended to the lower-cased Fortran name.  Blank commons
! have the name '__BLNK__'.
  
     For procedures and variables declared in the specification space of a
! module, the name is formed by '__', followed by the lower-cased module
! name, '_MOD_', and the lower-cased Fortran name.  Note that no
  underscore is appended.
  
  
*************** File: gfortran.info,  Node: Argument pas
*** 4369,4453 ****
  7.4.2 Argument passing conventions
  ----------------------------------
  
! Subroutines do not return a value (matching C99's `void') while
  functions either return a value as specified in the platform ABI or the
  result variable is passed as hidden argument to the function and no
  result is returned.  A hidden result variable is used when the result
! variable is an array or of type `CHARACTER'.
  
     Arguments are passed according to the platform ABI. In particular,
  complex arguments might not be compatible to a struct with two real
! components for the real and imaginary part. The argument passing
! matches the one of C99's `_Complex'.  Functions with scalar complex
  result variables return their value and do not use a by-reference
! argument.  Note that with the `-ff2c' option, the argument passing is
! modified and no longer completely matches the platform ABI.  Some other
! Fortran compilers use `f2c' semantic by default; this might cause
  problems with interoperablility.
  
!    GNU Fortran passes most arguments by reference, i.e. by passing a
  pointer to the data.  Note that the compiler might use a temporary
  variable into which the actual argument has been copied, if required
  semantically (copy-in/copy-out).
  
!    For arguments with `ALLOCATABLE' and `POINTER' attribute (including
  procedure pointers), a pointer to the pointer is passed such that the
  pointer address can be modified in the procedure.
  
!    For dummy arguments with the `VALUE' attribute: Scalar arguments of
! the type `INTEGER', `LOGICAL', `REAL' and `COMPLEX' are passed by value
! according to the platform ABI.  (As vendor extension and not
! recommended, using `%VAL()' in the call to a procedure has the same
! effect.) For `TYPE(C_PTR)' and procedure pointers, the pointer itself
! is passed such that it can be modified without affecting the caller.
  
!    For Boolean (`LOGICAL') arguments, please note that GCC expects only
! the integer value 0 and 1.  If a GNU Fortran `LOGICAL' variable
! contains another integer value, the result is undefined.  As some other
! Fortran compilers use -1 for `.TRUE.', extra care has to be taken -
! such as passing the value as `INTEGER'.  (The same value restriction
! also applies to other front ends of GCC, e.g. to GCC's C99 compiler for
! `_Bool' or GCC's Ada compiler for `Boolean'.)
  
!    For arguments of `CHARACTER' type, the character length is passed as
  hidden argument.  For deferred-length strings, the value is passed by
  reference, otherwise by value.  The character length has the type
! `INTEGER(kind=4)'.  Note with C binding, `CHARACTER(len=1)' result
  variables are returned according to the platform ABI and no hidden
! length argument is used for dummy arguments; with `VALUE', those
  variables are passed by value.
  
!    For `OPTIONAL' dummy arguments, an absent argument is denoted by a
! NULL pointer, except for scalar dummy arguments of type `INTEGER',
! `LOGICAL', `REAL' and `COMPLEX' which have the `VALUE' attribute.  For
! those, a hidden Boolean argument (`logical(kind=C_bool),value') is used
  to indicate whether the argument is present.
  
     Arguments which are assumed-shape, assumed-rank or deferred-rank
! arrays or, with `-fcoarray=lib', allocatable scalar coarrays use an
  array descriptor.  All other arrays pass the address of the first
! element of the array.  With `-fcoarray=lib', the token and the offset
  belonging to nonallocatable coarrays dummy arguments are passed as
  hidden argument along the character length hidden arguments.  The token
  is an oparque pointer identifying the coarray and the offset is a
! passed-by-value integer of kind `C_PTRDIFF_T', denoting the byte offset
  between the base address of the coarray and the passed scalar or first
  element of the passed array.
  
     The arguments are passed in the following order
     * Result variable, when the function result is passed by reference
- 
     * Character length of the function result, if it is a of type
!      `CHARACTER' and no C binding is used
! 
     * The arguments in the order in which they appear in the Fortran
       declaration
- 
     * The the present status for optional arguments with value attribute,
       which are internally passed by value
- 
     * The character length and/or coarray token and offset for the first
!      argument which is a `CHARACTER' or a nonallocatable coarray dummy
       argument, followed by the hidden arguments of the next dummy
       argument of such a type
  
--- 4332,4412 ----
  7.4.2 Argument passing conventions
  ----------------------------------
  
! Subroutines do not return a value (matching C99's 'void') while
  functions either return a value as specified in the platform ABI or the
  result variable is passed as hidden argument to the function and no
  result is returned.  A hidden result variable is used when the result
! variable is an array or of type 'CHARACTER'.
  
     Arguments are passed according to the platform ABI. In particular,
  complex arguments might not be compatible to a struct with two real
! components for the real and imaginary part.  The argument passing
! matches the one of C99's '_Complex'.  Functions with scalar complex
  result variables return their value and do not use a by-reference
! argument.  Note that with the '-ff2c' option, the argument passing is
! modified and no longer completely matches the platform ABI. Some other
! Fortran compilers use 'f2c' semantic by default; this might cause
  problems with interoperablility.
  
!    GNU Fortran passes most arguments by reference, i.e.  by passing a
  pointer to the data.  Note that the compiler might use a temporary
  variable into which the actual argument has been copied, if required
  semantically (copy-in/copy-out).
  
!    For arguments with 'ALLOCATABLE' and 'POINTER' attribute (including
  procedure pointers), a pointer to the pointer is passed such that the
  pointer address can be modified in the procedure.
  
!    For dummy arguments with the 'VALUE' attribute: Scalar arguments of
! the type 'INTEGER', 'LOGICAL', 'REAL' and 'COMPLEX' are passed by value
! according to the platform ABI. (As vendor extension and not recommended,
! using '%VAL()' in the call to a procedure has the same effect.)  For
! 'TYPE(C_PTR)' and procedure pointers, the pointer itself is passed such
! that it can be modified without affecting the caller.
  
!    For Boolean ('LOGICAL') arguments, please note that GCC expects only
! the integer value 0 and 1.  If a GNU Fortran 'LOGICAL' variable contains
! another integer value, the result is undefined.  As some other Fortran
! compilers use -1 for '.TRUE.', extra care has to be taken - such as
! passing the value as 'INTEGER'.  (The same value restriction also
! applies to other front ends of GCC, e.g.  to GCC's C99 compiler for
! '_Bool' or GCC's Ada compiler for 'Boolean'.)
  
!    For arguments of 'CHARACTER' type, the character length is passed as
  hidden argument.  For deferred-length strings, the value is passed by
  reference, otherwise by value.  The character length has the type
! 'INTEGER(kind=4)'.  Note with C binding, 'CHARACTER(len=1)' result
  variables are returned according to the platform ABI and no hidden
! length argument is used for dummy arguments; with 'VALUE', those
  variables are passed by value.
  
!    For 'OPTIONAL' dummy arguments, an absent argument is denoted by a
! NULL pointer, except for scalar dummy arguments of type 'INTEGER',
! 'LOGICAL', 'REAL' and 'COMPLEX' which have the 'VALUE' attribute.  For
! those, a hidden Boolean argument ('logical(kind=C_bool),value') is used
  to indicate whether the argument is present.
  
     Arguments which are assumed-shape, assumed-rank or deferred-rank
! arrays or, with '-fcoarray=lib', allocatable scalar coarrays use an
  array descriptor.  All other arrays pass the address of the first
! element of the array.  With '-fcoarray=lib', the token and the offset
  belonging to nonallocatable coarrays dummy arguments are passed as
  hidden argument along the character length hidden arguments.  The token
  is an oparque pointer identifying the coarray and the offset is a
! passed-by-value integer of kind 'C_PTRDIFF_T', denoting the byte offset
  between the base address of the coarray and the passed scalar or first
  element of the passed array.
  
     The arguments are passed in the following order
     * Result variable, when the function result is passed by reference
     * Character length of the function result, if it is a of type
!      'CHARACTER' and no C binding is used
     * The arguments in the order in which they appear in the Fortran
       declaration
     * The the present status for optional arguments with value attribute,
       which are internally passed by value
     * The character length and/or coarray token and offset for the first
!      argument which is a 'CHARACTER' or a nonallocatable coarray dummy
       argument, followed by the hidden arguments of the next dummy
       argument of such a type
  
*************** File: gfortran.info,  Node: Type and enu
*** 4476,4491 ****
  
  File: gfortran.info,  Node: caf_token_t,  Next: caf_register_t,  Up: Type and enum ABI Documentation
  
! 8.1.1 `caf_token_t'
  -------------------
  
! Typedef of type `void *' on the compiler side. Can be any data type on
  the library side.
  
  
  File: gfortran.info,  Node: caf_register_t,  Prev: caf_token_t,  Up: Type and enum ABI Documentation
  
! 8.1.2 `caf_register_t'
  ----------------------
  
  Indicates which kind of coarray variable should be registered.
--- 4435,4450 ----
  
  File: gfortran.info,  Node: caf_token_t,  Next: caf_register_t,  Up: Type and enum ABI Documentation
  
! 8.1.1 'caf_token_t'
  -------------------
  
! Typedef of type 'void *' on the compiler side.  Can be any data type on
  the library side.
  
  
  File: gfortran.info,  Node: caf_register_t,  Prev: caf_token_t,  Up: Type and enum ABI Documentation
  
! 8.1.2 'caf_register_t'
  ----------------------
  
  Indicates which kind of coarray variable should be registered.
*************** File: gfortran.info,  Node: Function ABI
*** 4541,4566 ****
  
  File: gfortran.info,  Node: _gfortran_caf_init,  Next: _gfortran_caf_finish,  Up: Function ABI Documentation
  
! 8.2.1 `_gfortran_caf_init' -- Initialiation function
  ----------------------------------------------------
  
  _Description_:
       This function is called at startup of the program before the
       Fortran main program, if the latter has been compiled with
!      `-fcoarray=lib'.  It takes as arguments the command-line arguments
!      of the program.  It is permitted to pass to `NULL' pointers as
!      argument; if non-`NULL', the library is permitted to modify the
       arguments.
  
  _Syntax_:
!      `void _gfortran_caf_init (int *argc, char ***argv)'
  
  _Arguments_:
!      ARGC       intent(inout) An integer pointer with the
!                 number of arguments passed to the program or
!                 `NULL'.
!      ARGV       intent(inout) A pointer to an array of strings
!                 with the command-line arguments or `NULL'.
  
  _NOTES_
       The function is modelled after the initialization function of the
--- 4500,4524 ----
  
  File: gfortran.info,  Node: _gfortran_caf_init,  Next: _gfortran_caf_finish,  Up: Function ABI Documentation
  
! 8.2.1 '_gfortran_caf_init' -- Initialiation function
  ----------------------------------------------------
  
  _Description_:
       This function is called at startup of the program before the
       Fortran main program, if the latter has been compiled with
!      '-fcoarray=lib'.  It takes as arguments the command-line arguments
!      of the program.  It is permitted to pass to 'NULL' pointers as
!      argument; if non-'NULL', the library is permitted to modify the
       arguments.
  
  _Syntax_:
!      'void _gfortran_caf_init (int *argc, char ***argv)'
  
  _Arguments_:
!      ARGC        intent(inout) An integer pointer with the number
!                  of arguments passed to the program or 'NULL'.
!      ARGV        intent(inout) A pointer to an array of strings
!                  with the command-line arguments or 'NULL'.
  
  _NOTES_
       The function is modelled after the initialization function of the
*************** _NOTES_
*** 4574,4713 ****
  
  File: gfortran.info,  Node: _gfortran_caf_finish,  Next: _gfortran_caf_this_image,  Prev: _gfortran_caf_init,  Up: Function ABI Documentation
  
! 8.2.2 `_gfortran_caf_finish' -- Finalization function
  -----------------------------------------------------
  
  _Description_:
       This function is called at the end of the Fortran main program, if
!      it has been compiled with the `-fcoarray=lib' option.
  
  _Syntax_:
!      `void _gfortran_caf_finish (void)'
  
  _NOTES_
!      For non-Fortran programs, it is recommended to call the function
!      at the end of the main program.  To ensure that the shutdown is
!      also performed for programs where this function is not explicitly
!      invoked, for instance non-Fortran programs or calls to the
!      system's exit() function, the library can use a destructor
!      function.  Note that programs can also be terminated using the
!      STOP and ERROR STOP statements; those use different library calls.
  
  
  File: gfortran.info,  Node: _gfortran_caf_this_image,  Next: _gfortran_caf_num_images,  Prev: _gfortran_caf_finish,  Up: Function ABI Documentation
  
! 8.2.3 `_gfortran_caf_this_image' -- Querying the image number
  -------------------------------------------------------------
  
  _Description_:
!      This function returns the current image number, which is a
!      positive number.
  
  _Syntax_:
!      `int _gfortran_caf_this_image (int distance)'
  
  _Arguments_:
!      DISTANCE   As specified for the `this_image' intrinsic in
!                 TS18508. Shall be a nonnegative number.
  
  _NOTES_
!      If the Fortran intrinsic `this_image' is invoked without an
       argument, which is the only permitted form in Fortran 2008, GCC
!      passes `0' as first argument.
  
  
  File: gfortran.info,  Node: _gfortran_caf_num_images,  Next: _gfortran_caf_register,  Prev: _gfortran_caf_this_image,  Up: Function ABI Documentation
  
! 8.2.4 `_gfortran_caf_num_images' -- Querying the maximal number of images
  -------------------------------------------------------------------------
  
  _Description_:
       This function returns the number of images in the current team, if
       DISTANCE is 0 or the number of images in the parent team at the
!      specified distance. If failed is -1, the function returns the
       number of all images at the specified distance; if it is 0, the
!      function returns the number of nonfailed images, and if it is 1,
!      it returns the number of failed images.
  
  _Syntax_:
!      `int _gfortran_caf_num_images(int distance, int failed)'
  
  _Arguments_:
!      DISTANCE   the distance from this image to the ancestor.
!                 Shall be positive.
!      FAILED     shall be -1, 0, or 1
  
  _NOTES_
!      This function follows TS18508. If the num_image intrinsic has no
!      arguments, the the compiler passes `distance=0' and `failed=-1' to
       the function.
  
  
  File: gfortran.info,  Node: _gfortran_caf_register,  Next: _gfortran_caf_deregister,  Prev: _gfortran_caf_num_images,  Up: Function ABI Documentation
  
! 8.2.5 `_gfortran_caf_register' -- Registering coarrays
  ------------------------------------------------------
  
  _Description_:
       Allocates memory for a coarray and creates a token to identify the
!      coarray. The function is called for both coarrays with `SAVE'
!      attribute and using an explicit `ALLOCATE' statement. If an error
!      occurs and STAT is a `NULL' pointer, the function shall abort with
       printing an error message and starting the error termination.  If
       no error occurs and STAT is present, it shall be set to zero.
!      Otherwise, it shall be set to a positive value and, if not-`NULL',
!      ERRMSG shall be set to a string describing the failure. The
       function shall return a pointer to the requested memory for the
!      local image as a call to `malloc' would do.
  
!      For `CAF_REGTYPE_COARRAY_STATIC' and `CAF_REGTYPE_COARRAY_ALLOC',
       the passed size is the byte size requested.  For
!      `CAF_REGTYPE_LOCK_STATIC', `CAF_REGTYPE_LOCK_ALLOC' and
!      `CAF_REGTYPE_CRITICAL' it is the array size or one for a scalar.
  
  _Syntax_:
!      `void *caf_register (size_t size, caf_register_t type, caf_token_t
       *token, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      SIZE       For normal coarrays, the byte size of the
!                 coarray to be allocated; for lock types and
!                 event types, the number of elements.
!      TYPE       one of the caf_register_t types.
!      TOKEN      intent(out) An opaque pointer identifying the
!                 coarray.
!      STAT       intent(out) For allocatable coarrays, stores
!                 the STAT=; may be NULL
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       Nonalloatable coarrays have to be registered prior use from remote
       images.  In order to guarantee this, they have to be registered
!      before the main program. This can be achieved by creating
!      constructor functions. That is what GCC does such that also
       nonallocatable coarrays the memory is allocated and no static
       memory is used.  The token permits to identify the coarray; to the
!      processor, the token is a nonaliasing pointer. The library can,
       for instance, store the base address of the coarray in the token,
       some handle or a more complicated struct.
  
       For normal coarrays, the returned pointer is used for accesses on
!      the local image. For lock types, the value shall only used for
!      checking the allocation status. Note that for critical blocks, the
       locking is only required on one image; in the locking statement,
       the processor shall always pass always an image index of one for
!      critical-block lock variables (`CAF_REGTYPE_CRITICAL'). For lock
       types and critical-block variables, the initial value shall be
       unlocked (or, respecitively, not in critical section) such as the
!      value false; for event types, the initial state should be no
!      event, e.g. zero.
  
  
  File: gfortran.info,  Node: _gfortran_caf_deregister,  Next: _gfortran_caf_send,  Prev: _gfortran_caf_register,  Up: Function ABI Documentation
  
! 8.2.6 `_gfortran_caf_deregister' -- Deregistering coarrays
  ----------------------------------------------------------
  
  _Description_:
--- 4532,4671 ----
  
  File: gfortran.info,  Node: _gfortran_caf_finish,  Next: _gfortran_caf_this_image,  Prev: _gfortran_caf_init,  Up: Function ABI Documentation
  
! 8.2.2 '_gfortran_caf_finish' -- Finalization function
  -----------------------------------------------------
  
  _Description_:
       This function is called at the end of the Fortran main program, if
!      it has been compiled with the '-fcoarray=lib' option.
  
  _Syntax_:
!      'void _gfortran_caf_finish (void)'
  
  _NOTES_
!      For non-Fortran programs, it is recommended to call the function at
!      the end of the main program.  To ensure that the shutdown is also
!      performed for programs where this function is not explicitly
!      invoked, for instance non-Fortran programs or calls to the system's
!      exit() function, the library can use a destructor function.  Note
!      that programs can also be terminated using the STOP and ERROR STOP
!      statements; those use different library calls.
  
  
  File: gfortran.info,  Node: _gfortran_caf_this_image,  Next: _gfortran_caf_num_images,  Prev: _gfortran_caf_finish,  Up: Function ABI Documentation
  
! 8.2.3 '_gfortran_caf_this_image' -- Querying the image number
  -------------------------------------------------------------
  
  _Description_:
!      This function returns the current image number, which is a positive
!      number.
  
  _Syntax_:
!      'int _gfortran_caf_this_image (int distance)'
  
  _Arguments_:
!      DISTANCE    As specified for the 'this_image' intrinsic in
!                  TS18508.  Shall be a nonnegative number.
  
  _NOTES_
!      If the Fortran intrinsic 'this_image' is invoked without an
       argument, which is the only permitted form in Fortran 2008, GCC
!      passes '0' as first argument.
  
  
  File: gfortran.info,  Node: _gfortran_caf_num_images,  Next: _gfortran_caf_register,  Prev: _gfortran_caf_this_image,  Up: Function ABI Documentation
  
! 8.2.4 '_gfortran_caf_num_images' -- Querying the maximal number of images
  -------------------------------------------------------------------------
  
  _Description_:
       This function returns the number of images in the current team, if
       DISTANCE is 0 or the number of images in the parent team at the
!      specified distance.  If failed is -1, the function returns the
       number of all images at the specified distance; if it is 0, the
!      function returns the number of nonfailed images, and if it is 1, it
!      returns the number of failed images.
  
  _Syntax_:
!      'int _gfortran_caf_num_images(int distance, int failed)'
  
  _Arguments_:
!      DISTANCE    the distance from this image to the ancestor.
!                  Shall be positive.
!      FAILED      shall be -1, 0, or 1
  
  _NOTES_
!      This function follows TS18508.  If the num_image intrinsic has no
!      arguments, the the compiler passes 'distance=0' and 'failed=-1' to
       the function.
  
  
  File: gfortran.info,  Node: _gfortran_caf_register,  Next: _gfortran_caf_deregister,  Prev: _gfortran_caf_num_images,  Up: Function ABI Documentation
  
! 8.2.5 '_gfortran_caf_register' -- Registering coarrays
  ------------------------------------------------------
  
  _Description_:
       Allocates memory for a coarray and creates a token to identify the
!      coarray.  The function is called for both coarrays with 'SAVE'
!      attribute and using an explicit 'ALLOCATE' statement.  If an error
!      occurs and STAT is a 'NULL' pointer, the function shall abort with
       printing an error message and starting the error termination.  If
       no error occurs and STAT is present, it shall be set to zero.
!      Otherwise, it shall be set to a positive value and, if not-'NULL',
!      ERRMSG shall be set to a string describing the failure.  The
       function shall return a pointer to the requested memory for the
!      local image as a call to 'malloc' would do.
  
!      For 'CAF_REGTYPE_COARRAY_STATIC' and 'CAF_REGTYPE_COARRAY_ALLOC',
       the passed size is the byte size requested.  For
!      'CAF_REGTYPE_LOCK_STATIC', 'CAF_REGTYPE_LOCK_ALLOC' and
!      'CAF_REGTYPE_CRITICAL' it is the array size or one for a scalar.
  
  _Syntax_:
!      'void *caf_register (size_t size, caf_register_t type, caf_token_t
       *token, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      SIZE        For normal coarrays, the byte size of the
!                  coarray to be allocated; for lock types and
!                  event types, the number of elements.
!      TYPE        one of the caf_register_t types.
!      TOKEN       intent(out) An opaque pointer identifying the
!                  coarray.
!      STAT        intent(out) For allocatable coarrays, stores the
!                  STAT=; may be NULL
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       Nonalloatable coarrays have to be registered prior use from remote
       images.  In order to guarantee this, they have to be registered
!      before the main program.  This can be achieved by creating
!      constructor functions.  That is what GCC does such that also
       nonallocatable coarrays the memory is allocated and no static
       memory is used.  The token permits to identify the coarray; to the
!      processor, the token is a nonaliasing pointer.  The library can,
       for instance, store the base address of the coarray in the token,
       some handle or a more complicated struct.
  
       For normal coarrays, the returned pointer is used for accesses on
!      the local image.  For lock types, the value shall only used for
!      checking the allocation status.  Note that for critical blocks, the
       locking is only required on one image; in the locking statement,
       the processor shall always pass always an image index of one for
!      critical-block lock variables ('CAF_REGTYPE_CRITICAL').  For lock
       types and critical-block variables, the initial value shall be
       unlocked (or, respecitively, not in critical section) such as the
!      value false; for event types, the initial state should be no event,
!      e.g.  zero.
  
  
  File: gfortran.info,  Node: _gfortran_caf_deregister,  Next: _gfortran_caf_send,  Prev: _gfortran_caf_register,  Up: Function ABI Documentation
  
! 8.2.6 '_gfortran_caf_deregister' -- Deregistering coarrays
  ----------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 4717,4730 ****
       STAT variable is not null.
  
  _Syntax_:
!      `void caf_deregister (const caf_token_t *token, int *stat, char
       *errmsg, int errmsg_len)'
  
  _Arguments_:
!      STAT       intent(out) Stores the STAT=; may be NULL
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       For nonalloatable coarrays this function is never called.  If a
--- 4675,4688 ----
       STAT variable is not null.
  
  _Syntax_:
!      'void caf_deregister (const caf_token_t *token, int *stat, char
       *errmsg, int errmsg_len)'
  
  _Arguments_:
!      STAT        intent(out) Stores the STAT=; may be NULL
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       For nonalloatable coarrays this function is never called.  If a
*************** _NOTES_
*** 4734,4740 ****
  
  File: gfortran.info,  Node: _gfortran_caf_send,  Next: _gfortran_caf_get,  Prev: _gfortran_caf_deregister,  Up: Function ABI Documentation
  
! 8.2.7 `_gfortran_caf_send' -- Sending data from a local image to a remote image
  -------------------------------------------------------------------------------
  
  _Description_:
--- 4692,4698 ----
  
  File: gfortran.info,  Node: _gfortran_caf_send,  Next: _gfortran_caf_get,  Prev: _gfortran_caf_deregister,  Up: Function ABI Documentation
  
! 8.2.7 '_gfortran_caf_send' -- Sending data from a local image to a remote image
  -------------------------------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 4742,4798 ****
       local to a remote image identified by the image_index.
  
  _Syntax_:
!      `void _gfortran_caf_send (caf_token_t token, size_t offset, int
       image_index, gfc_descriptor_t *dest, caf_vector_t *dst_vector,
       gfc_descriptor_t *src, int dst_kind, int src_kind, bool
       may_require_tmp)'
  
  _Arguments_:
!      TOKEN      intent(in)  An opaque pointer identifying the
!                 coarray.
!      OFFSET     By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 coarray.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number.
!      DEST       intent(in) Array descriptor for the remote
!                 image for the bounds and the size. The
!                 base_addr shall not be accessed.
!      DST_VECTOR intent(int)  If not NULL, it contains the
!                 vector subscript of the destination array; the
!                 values are relative to the dimension triplet
!                 of the dest argument.
!      SRC        intent(in) Array descriptor of the local array
!                 to be transferred to the remote image
!      DST_KIND   Kind of the destination argument
!      SRC_KIND   Kind of the source argument
       MAY_REQUIRE_TMPThe variable is false it is known at compile
!                 time that the DEST and SRC either cannot
!                 overlap or overlap (fully or partially) such
!                 that walking SRC and DEST in element wise
!                 element order (honoring the stride value) will
!                 not lead to wrong results.  Otherwise, the
!                 value is true.
  
  _NOTES_
       It is permitted to have image_id equal the current image; the
       memory of the send-to and the send-from might (partially) overlap
!      in that case. The implementation has to take care that it handles
!      this case, e.g. using `memmove' which handles (partially)
!      overlapping memory. If MAY_REQUIRE_TMP is true, the library might
       additionally create a temporary variable, unless additional checks
!      show that this is not required (e.g. because walking backward is
!      possible or because both arrays are contiguous and `memmove' takes
       care of overlap issues).
  
!      Note that the assignment of a scalar to an array is permitted. In
!      addition, the library has to handle numeric-type conversion and
!      for strings, padding and different character kinds.
  
  
  File: gfortran.info,  Node: _gfortran_caf_get,  Next: _gfortran_caf_sendget,  Prev: _gfortran_caf_send,  Up: Function ABI Documentation
  
! 8.2.8 `_gfortran_caf_get' -- Getting data from a remote image
  -------------------------------------------------------------
  
  _Description_:
--- 4700,4755 ----
       local to a remote image identified by the image_index.
  
  _Syntax_:
!      'void _gfortran_caf_send (caf_token_t token, size_t offset, int
       image_index, gfc_descriptor_t *dest, caf_vector_t *dst_vector,
       gfc_descriptor_t *src, int dst_kind, int src_kind, bool
       may_require_tmp)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      OFFSET      By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  coarray.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number.
!      DEST        intent(in) Array descriptor for the remote image
!                  for the bounds and the size.  The base_addr
!                  shall not be accessed.
!      DST_VECTOR  intent(int) If not NULL, it contains the vector
!                  subscript of the destination array; the values
!                  are relative to the dimension triplet of the
!                  dest argument.
!      SRC         intent(in) Array descriptor of the local array
!                  to be transferred to the remote image
!      DST_KIND    Kind of the destination argument
!      SRC_KIND    Kind of the source argument
       MAY_REQUIRE_TMPThe variable is false it is known at compile
!                  time that the DEST and SRC either cannot overlap
!                  or overlap (fully or partially) such that
!                  walking SRC and DEST in element wise element
!                  order (honoring the stride value) will not lead
!                  to wrong results.  Otherwise, the value is true.
  
  _NOTES_
       It is permitted to have image_id equal the current image; the
       memory of the send-to and the send-from might (partially) overlap
!      in that case.  The implementation has to take care that it handles
!      this case, e.g.  using 'memmove' which handles (partially)
!      overlapping memory.  If MAY_REQUIRE_TMP is true, the library might
       additionally create a temporary variable, unless additional checks
!      show that this is not required (e.g.  because walking backward is
!      possible or because both arrays are contiguous and 'memmove' takes
       care of overlap issues).
  
!      Note that the assignment of a scalar to an array is permitted.  In
!      addition, the library has to handle numeric-type conversion and for
!      strings, padding and different character kinds.
  
  
  File: gfortran.info,  Node: _gfortran_caf_get,  Next: _gfortran_caf_sendget,  Prev: _gfortran_caf_send,  Up: Function ABI Documentation
  
! 8.2.8 '_gfortran_caf_get' -- Getting data from a remote image
  -------------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 4800,4855 ****
       image identified by the image_index.
  
  _Syntax_:
!      `void _gfortran_caf_get_desc (caf_token_t token, size_t offset,
!      int image_index, gfc_descriptor_t *src, caf_vector_t *src_vector,
       gfc_descriptor_t *dest, int src_kind, int dst_kind, bool
       may_require_tmp)'
  
  _Arguments_:
!      TOKEN      intent(in)  An opaque pointer identifying the
!                 coarray.
!      OFFSET     By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 coarray.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number.
!      DEST       intent(in) Array descriptor of the local array
!                 to be transferred to the remote image
!      SRC        intent(in) Array descriptor for the remote
!                 image for the bounds and the size. The
!                 base_addr shall not be accessed.
!      SRC_VECTOR intent(int)  If not NULL, it contains the
!                 vector subscript of the destination array; the
!                 values are relative to the dimension triplet
!                 of the dest argument.
!      DST_KIND   Kind of the destination argument
!      SRC_KIND   Kind of the source argument
       MAY_REQUIRE_TMPThe variable is false it is known at compile
!                 time that the DEST and SRC either cannot
!                 overlap or overlap (fully or partially) such
!                 that walking SRC and DEST in element wise
!                 element order (honoring the stride value) will
!                 not lead to wrong results.  Otherwise, the
!                 value is true.
  
  _NOTES_
       It is permitted to have image_id equal the current image; the
       memory of the send-to and the send-from might (partially) overlap
!      in that case. The implementation has to take care that it handles
!      this case, e.g. using `memmove' which handles (partially)
!      overlapping memory. If MAY_REQUIRE_TMP is true, the library might
       additionally create a temporary variable, unless additional checks
!      show that this is not required (e.g. because walking backward is
!      possible or because both arrays are contiguous and `memmove' takes
       care of overlap issues).
  
!      Note that the library has to handle numeric-type conversion and
!      for strings, padding and different character kinds.
  
  
  File: gfortran.info,  Node: _gfortran_caf_sendget,  Next: _gfortran_caf_lock,  Prev: _gfortran_caf_get,  Up: Function ABI Documentation
  
! 8.2.9 `_gfortran_caf_sendget' -- Sending data between remote images
  -------------------------------------------------------------------
  
  _Description_:
--- 4757,4811 ----
       image identified by the image_index.
  
  _Syntax_:
!      'void _gfortran_caf_get_desc (caf_token_t token, size_t offset, int
!      image_index, gfc_descriptor_t *src, caf_vector_t *src_vector,
       gfc_descriptor_t *dest, int src_kind, int dst_kind, bool
       may_require_tmp)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      OFFSET      By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  coarray.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number.
!      DEST        intent(in) Array descriptor of the local array
!                  to be transferred to the remote image
!      SRC         intent(in) Array descriptor for the remote image
!                  for the bounds and the size.  The base_addr
!                  shall not be accessed.
!      SRC_VECTOR  intent(int) If not NULL, it contains the vector
!                  subscript of the destination array; the values
!                  are relative to the dimension triplet of the
!                  dest argument.
!      DST_KIND    Kind of the destination argument
!      SRC_KIND    Kind of the source argument
       MAY_REQUIRE_TMPThe variable is false it is known at compile
!                  time that the DEST and SRC either cannot overlap
!                  or overlap (fully or partially) such that
!                  walking SRC and DEST in element wise element
!                  order (honoring the stride value) will not lead
!                  to wrong results.  Otherwise, the value is true.
  
  _NOTES_
       It is permitted to have image_id equal the current image; the
       memory of the send-to and the send-from might (partially) overlap
!      in that case.  The implementation has to take care that it handles
!      this case, e.g.  using 'memmove' which handles (partially)
!      overlapping memory.  If MAY_REQUIRE_TMP is true, the library might
       additionally create a temporary variable, unless additional checks
!      show that this is not required (e.g.  because walking backward is
!      possible or because both arrays are contiguous and 'memmove' takes
       care of overlap issues).
  
!      Note that the library has to handle numeric-type conversion and for
!      strings, padding and different character kinds.
  
  
  File: gfortran.info,  Node: _gfortran_caf_sendget,  Next: _gfortran_caf_lock,  Prev: _gfortran_caf_get,  Up: Function ABI Documentation
  
! 8.2.9 '_gfortran_caf_sendget' -- Sending data between remote images
  -------------------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 4858,4954 ****
       identified by the dst_image_index.
  
  _Syntax_:
!      `void _gfortran_caf_sendget (caf_token_t dst_token, size_t
       dst_offset, int dst_image_index, gfc_descriptor_t *dest,
!      caf_vector_t *dst_vector, caf_token_t src_token, size_t
!      src_offset, int src_image_index, gfc_descriptor_t *src,
!      caf_vector_t *src_vector, int dst_kind, int src_kind, bool
!      may_require_tmp)'
  
  _Arguments_:
!      DST_TOKEN  intent(in)  An opaque pointer identifying the
!                 destination coarray.
!      DST_OFFSET By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 destination coarray.
!      DST_IMAGE_INDEXThe ID of the destination remote image; must
!                 be a positive number.
!      DEST       intent(in) Array descriptor for the destination
!                 remote image for the bounds and the size. The
!                 base_addr shall not be accessed.
!      DST_VECTOR intent(int)  If not NULL, it contains the
!                 vector subscript of the destination array; the
!                 values are relative to the dimension triplet
!                 of the dest argument.
!      SRC_TOKEN  An opaque pointer identifying the source
!                 coarray.
!      SRC_OFFSET By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 source coarray.
       SRC_IMAGE_INDEXThe ID of the source remote image; must be a
!                 positive number.
!      SRC        intent(in) Array descriptor of the local array
!                 to be transferred to the remote image.
!      SRC_VECTOR intent(in) Array descriptor of the local array
!                 to be transferred to the remote image
!      DST_KIND   Kind of the destination argument
!      SRC_KIND   Kind of the source argument
       MAY_REQUIRE_TMPThe variable is false it is known at compile
!                 time that the DEST and SRC either cannot
!                 overlap or overlap (fully or partially) such
!                 that walking SRC and DEST in element wise
!                 element order (honoring the stride value) will
!                 not lead to wrong results.  Otherwise, the
!                 value is true.
  
  _NOTES_
       It is permitted to have image_ids equal; the memory of the send-to
!      and the send-from might (partially) overlap in that case. The
       implementation has to take care that it handles this case, e.g.
!      using `memmove' which handles (partially) overlapping memory. If
       MAY_REQUIRE_TMP is true, the library might additionally create a
       temporary variable, unless additional checks show that this is not
!      required (e.g. because walking backward is possible or because
!      both arrays are contiguous and `memmove' takes care of overlap
       issues).
  
!      Note that the assignment of a scalar to an array is permitted. In
!      addition, the library has to handle numeric-type conversion and
!      for strings, padding and different character kinds.
  
  
  File: gfortran.info,  Node: _gfortran_caf_lock,  Next: _gfortran_caf_unlock,  Prev: _gfortran_caf_sendget,  Up: Function ABI Documentation
  
! 8.2.10 `_gfortran_caf_lock' -- Locking a lock variable
  ------------------------------------------------------
  
  _Description_:
       Acquire a lock on the given image on a scalar locking variable or
!      for the given array element for an array-valued variable. If the
!      AQUIRED_LOCK is `NULL', the function return after having obtained
!      the lock. If it is nonnull, the result is is assigned the value
       true (one) when the lock could be obtained and false (zero)
       otherwise.  Locking a lock variable which has already been locked
       by the same image is an error.
  
  _Syntax_:
!      `void _gfortran_caf_lock (caf_token_t token, size_t index, int
       image_index, int *aquired_lock, int *stat, char *errmsg, int
       errmsg_len)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      INDEX      Array index; first array index is 0. For
!                 scalars, it is always 0.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number.
!      AQUIRED_LOCKintent(out) If not NULL, it returns whether
!                 lock could be obtained
!      STAT       intent(out) Stores the STAT=; may be NULL
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       This function is also called for critical blocks; for those, the
--- 4814,4908 ----
       identified by the dst_image_index.
  
  _Syntax_:
!      'void _gfortran_caf_sendget (caf_token_t dst_token, size_t
       dst_offset, int dst_image_index, gfc_descriptor_t *dest,
!      caf_vector_t *dst_vector, caf_token_t src_token, size_t src_offset,
!      int src_image_index, gfc_descriptor_t *src, caf_vector_t
!      *src_vector, int dst_kind, int src_kind, bool may_require_tmp)'
  
  _Arguments_:
!      DST_TOKEN   intent(in) An opaque pointer identifying the
!                  destination coarray.
!      DST_OFFSET  By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  destination coarray.
!      DST_IMAGE_INDEXThe ID of the destination remote image; must be
!                  a positive number.
!      DEST        intent(in) Array descriptor for the destination
!                  remote image for the bounds and the size.  The
!                  base_addr shall not be accessed.
!      DST_VECTOR  intent(int) If not NULL, it contains the vector
!                  subscript of the destination array; the values
!                  are relative to the dimension triplet of the
!                  dest argument.
!      SRC_TOKEN   An opaque pointer identifying the source
!                  coarray.
!      SRC_OFFSET  By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  source coarray.
       SRC_IMAGE_INDEXThe ID of the source remote image; must be a
!                  positive number.
!      SRC         intent(in) Array descriptor of the local array
!                  to be transferred to the remote image.
!      SRC_VECTOR  intent(in) Array descriptor of the local array
!                  to be transferred to the remote image
!      DST_KIND    Kind of the destination argument
!      SRC_KIND    Kind of the source argument
       MAY_REQUIRE_TMPThe variable is false it is known at compile
!                  time that the DEST and SRC either cannot overlap
!                  or overlap (fully or partially) such that
!                  walking SRC and DEST in element wise element
!                  order (honoring the stride value) will not lead
!                  to wrong results.  Otherwise, the value is true.
  
  _NOTES_
       It is permitted to have image_ids equal; the memory of the send-to
!      and the send-from might (partially) overlap in that case.  The
       implementation has to take care that it handles this case, e.g.
!      using 'memmove' which handles (partially) overlapping memory.  If
       MAY_REQUIRE_TMP is true, the library might additionally create a
       temporary variable, unless additional checks show that this is not
!      required (e.g.  because walking backward is possible or because
!      both arrays are contiguous and 'memmove' takes care of overlap
       issues).
  
!      Note that the assignment of a scalar to an array is permitted.  In
!      addition, the library has to handle numeric-type conversion and for
!      strings, padding and different character kinds.
  
  
  File: gfortran.info,  Node: _gfortran_caf_lock,  Next: _gfortran_caf_unlock,  Prev: _gfortran_caf_sendget,  Up: Function ABI Documentation
  
! 8.2.10 '_gfortran_caf_lock' -- Locking a lock variable
  ------------------------------------------------------
  
  _Description_:
       Acquire a lock on the given image on a scalar locking variable or
!      for the given array element for an array-valued variable.  If the
!      AQUIRED_LOCK is 'NULL', the function return after having obtained
!      the lock.  If it is nonnull, the result is is assigned the value
       true (one) when the lock could be obtained and false (zero)
       otherwise.  Locking a lock variable which has already been locked
       by the same image is an error.
  
  _Syntax_:
!      'void _gfortran_caf_lock (caf_token_t token, size_t index, int
       image_index, int *aquired_lock, int *stat, char *errmsg, int
       errmsg_len)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      INDEX       Array index; first array index is 0.  For
!                  scalars, it is always 0.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number.
!      AQUIRED_LOCKintent(out) If not NULL, it returns whether lock
!                  could be obtained
!      STAT        intent(out) Stores the STAT=; may be NULL
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       This function is also called for critical blocks; for those, the
*************** _NOTES_
*** 4959,4989 ****
  
  File: gfortran.info,  Node: _gfortran_caf_unlock,  Next: _gfortran_caf_event_post,  Prev: _gfortran_caf_lock,  Up: Function ABI Documentation
  
! 8.2.11 `_gfortran_caf_lock' -- Unlocking a lock variable
  --------------------------------------------------------
  
  _Description_:
       Release a lock on the given image on a scalar locking variable or
       for the given array element for an array-valued variable.
!      Unlocking a lock variable which is unlocked or has been locked by
!      a different image is an error.
  
  _Syntax_:
!      `void _gfortran_caf_unlock (caf_token_t token, size_t index, int
       image_index, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      INDEX      Array index; first array index is 0. For
!                 scalars, it is always 0.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number.
!      STAT       intent(out) For allocatable coarrays, stores
!                 the STAT=; may be NULL
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       This function is also called for critical block; for those, the
--- 4913,4943 ----
  
  File: gfortran.info,  Node: _gfortran_caf_unlock,  Next: _gfortran_caf_event_post,  Prev: _gfortran_caf_lock,  Up: Function ABI Documentation
  
! 8.2.11 '_gfortran_caf_lock' -- Unlocking a lock variable
  --------------------------------------------------------
  
  _Description_:
       Release a lock on the given image on a scalar locking variable or
       for the given array element for an array-valued variable.
!      Unlocking a lock variable which is unlocked or has been locked by a
!      different image is an error.
  
  _Syntax_:
!      'void _gfortran_caf_unlock (caf_token_t token, size_t index, int
       image_index, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      INDEX       Array index; first array index is 0.  For
!                  scalars, it is always 0.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number.
!      STAT        intent(out) For allocatable coarrays, stores the
!                  STAT=; may be NULL
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       This function is also called for critical block; for those, the
*************** _NOTES_
*** 4994,5033 ****
  
  File: gfortran.info,  Node: _gfortran_caf_event_post,  Next: _gfortran_caf_event_wait,  Prev: _gfortran_caf_unlock,  Up: Function ABI Documentation
  
! 8.2.12 `_gfortran_caf_event_post' -- Post an event
  --------------------------------------------------
  
  _Description_:
       Increment the event count of the specified event variable.
  
  _Syntax_:
!      `void _gfortran_caf_event_post (caf_token_t token, size_t index,
       int image_index, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      INDEX      Array index; first array index is 0. For
!                 scalars, it is always 0.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number; zero indicates the current image when
!                 accessed noncoindexed.
!      STAT       intent(out) Stores the STAT=; may be NULL
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       This acts like an atomic add of one to the remote image's event
!      variable.  The statement is an image-control statement but does
!      not imply sync memory.  Still, all preceeding push communications
!      of this image to the specified remote image has to be completed
!      before `event_wait' on the remote image returns.
  
  
  File: gfortran.info,  Node: _gfortran_caf_event_wait,  Next: _gfortran_caf_event_query,  Prev: _gfortran_caf_event_post,  Up: Function ABI Documentation
  
! 8.2.13 `_gfortran_caf_event_wait' -- Wait that an event occurred
  ----------------------------------------------------------------
  
  _Description_:
--- 4948,4987 ----
  
  File: gfortran.info,  Node: _gfortran_caf_event_post,  Next: _gfortran_caf_event_wait,  Prev: _gfortran_caf_unlock,  Up: Function ABI Documentation
  
! 8.2.12 '_gfortran_caf_event_post' -- Post an event
  --------------------------------------------------
  
  _Description_:
       Increment the event count of the specified event variable.
  
  _Syntax_:
!      'void _gfortran_caf_event_post (caf_token_t token, size_t index,
       int image_index, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      INDEX       Array index; first array index is 0.  For
!                  scalars, it is always 0.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number; zero indicates the current image when
!                  accessed noncoindexed.
!      STAT        intent(out) Stores the STAT=; may be NULL
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       This acts like an atomic add of one to the remote image's event
!      variable.  The statement is an image-control statement but does not
!      imply sync memory.  Still, all preceeding push communications of
!      this image to the specified remote image has to be completed before
!      'event_wait' on the remote image returns.
  
  
  File: gfortran.info,  Node: _gfortran_caf_event_wait,  Next: _gfortran_caf_event_query,  Prev: _gfortran_caf_event_post,  Up: Function ABI Documentation
  
! 8.2.13 '_gfortran_caf_event_wait' -- Wait that an event occurred
  ----------------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 5036,5101 ****
       amount and return.
  
  _Syntax_:
!      `void _gfortran_caf_event_wait (caf_token_t token, size_t index,
       int until_count, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      INDEX      Array index; first array index is 0. For
!                 scalars, it is always 0.
!      UNTIL_COUNTThe number of events which have to be available
!                 before the function returns.
!      STAT       intent(out) Stores the STAT=; may be NULL
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
!      This function only operates on a local coarray. It acts like a
       loop checking atomically the value of the event variable, breaking
       if the value is greater or equal the requested number of counts.
       Before the function returns, the event variable has to be
       decremented by the requested UNTIL_COUNT value.  A possible
       implementation would be a busy loop for a certain number of spins
!      (possibly depending on the number of threads relative to the
!      number of available cores) followed by other waiting strategy such
!      as a sleeping wait (possibly with an increasing number of sleep
!      time) or, if possible, a futex wait.
  
!      The statement is an image-control statement but does not imply
!      sync memory.  Still, all preceeding push communications to this
!      image of images having issued a `event_push' have to be completed
!      before this function returns.
  
  
  File: gfortran.info,  Node: _gfortran_caf_event_query,  Next: _gfortran_caf_sync_all,  Prev: _gfortran_caf_event_wait,  Up: Function ABI Documentation
  
! 8.2.14 `_gfortran_caf_event_query' -- Query event count
  -------------------------------------------------------
  
  _Description_:
       Return the event count of the specified event count.
  
  _Syntax_:
!      `void _gfortran_caf_event_query (caf_token_t token, size_t index,
       int image_index, int *count, int *stat)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      INDEX      Array index; first array index is 0. For
!                 scalars, it is always 0.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number; zero indicates the current image when
!                 accessed noncoindexed.
!      COUNT      intent(out) The number of events currently
!                 posted to the event variable
!      STAT       intent(out) Stores the STAT=; may be NULL
  
  _NOTES_
       The typical use is to check the local even variable to only call
!      `event_wait' when the data is available. However, a coindexed
       variable is permitted; there is no ordering or synchronization
       implied.  It acts like an atomic fetch of the value of the event
       variable.
--- 4990,5055 ----
       amount and return.
  
  _Syntax_:
!      'void _gfortran_caf_event_wait (caf_token_t token, size_t index,
       int until_count, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      INDEX       Array index; first array index is 0.  For
!                  scalars, it is always 0.
!      UNTIL_COUNT The number of events which have to be available
!                  before the function returns.
!      STAT        intent(out) Stores the STAT=; may be NULL
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
!      This function only operates on a local coarray.  It acts like a
       loop checking atomically the value of the event variable, breaking
       if the value is greater or equal the requested number of counts.
       Before the function returns, the event variable has to be
       decremented by the requested UNTIL_COUNT value.  A possible
       implementation would be a busy loop for a certain number of spins
!      (possibly depending on the number of threads relative to the number
!      of available cores) followed by other waiting strategy such as a
!      sleeping wait (possibly with an increasing number of sleep time)
!      or, if possible, a futex wait.
  
!      The statement is an image-control statement but does not imply sync
!      memory.  Still, all preceeding push communications to this image of
!      images having issued a 'event_push' have to be completed before
!      this function returns.
  
  
  File: gfortran.info,  Node: _gfortran_caf_event_query,  Next: _gfortran_caf_sync_all,  Prev: _gfortran_caf_event_wait,  Up: Function ABI Documentation
  
! 8.2.14 '_gfortran_caf_event_query' -- Query event count
  -------------------------------------------------------
  
  _Description_:
       Return the event count of the specified event count.
  
  _Syntax_:
!      'void _gfortran_caf_event_query (caf_token_t token, size_t index,
       int image_index, int *count, int *stat)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      INDEX       Array index; first array index is 0.  For
!                  scalars, it is always 0.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number; zero indicates the current image when
!                  accessed noncoindexed.
!      COUNT       intent(out) The number of events currently
!                  posted to the event variable
!      STAT        intent(out) Stores the STAT=; may be NULL
  
  _NOTES_
       The typical use is to check the local even variable to only call
!      'event_wait' when the data is available.  However, a coindexed
       variable is permitted; there is no ordering or synchronization
       implied.  It acts like an atomic fetch of the value of the event
       variable.
*************** _NOTES_
*** 5103,5257 ****
  
  File: gfortran.info,  Node: _gfortran_caf_sync_all,  Next: _gfortran_caf_sync_images,  Prev: _gfortran_caf_event_query,  Up: Function ABI Documentation
  
! 8.2.15 `_gfortran_caf_sync_all' -- All-image barrier
  ----------------------------------------------------
  
  _Description_:
!      Synchronization of all images in the current team; the program
!      only continues on a given image after this function has been
!      called on all images of the current team.  Additionally, it
!      ensures that all pending data transfers of previous segment have
!      completed.
  
  _Syntax_:
!      `void _gfortran_caf_sync_all (int *stat, char *errmsg, int
       errmsg_len)'
  
  _Arguments_:
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  
  File: gfortran.info,  Node: _gfortran_caf_sync_images,  Next: _gfortran_caf_sync_memory,  Prev: _gfortran_caf_sync_all,  Up: Function ABI Documentation
  
! 8.2.16 `_gfortran_caf_sync_images' -- Barrier for selected images
  -----------------------------------------------------------------
  
  _Description_:
       Synchronization between the specified images; the program only
       continues on a given image after this function has been called on
!      all images specified for that image. Note that one image can wait
!      for all other images in the current team (e.g. via `sync
       images(*)') while those only wait for that specific image.
!      Additionally, `sync images' it ensures that all pending data
       transfers of previous segment have completed.
  
  _Syntax_:
!      `void _gfortran_caf_sync_images (int count, int images[], int
       *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      COUNT      the number of images which are provided in the
!                 next argument.  For a zero-sized array, the
!                 value is zero.  For `sync images (*)', the
!                 value is -1.
!      IMAGES     intent(in) an array with the images provided
!                 by the user. If COUNT is zero, a NULL pointer
!                 is passed.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  
  File: gfortran.info,  Node: _gfortran_caf_sync_memory,  Next: _gfortran_caf_error_stop,  Prev: _gfortran_caf_sync_images,  Up: Function ABI Documentation
  
! 8.2.17 `_gfortran_caf_sync_memory' -- Wait for completion of segment-memory operations
  --------------------------------------------------------------------------------------
  
  _Description_:
!      Acts as optimization barrier between different segments. It also
       ensures that all pending memory operations of this image have been
       completed.
  
  _Syntax_:
!      `void _gfortran_caf_sync_memory (int *stat, char *errmsg, int
       errmsg_len)'
  
  _Arguments_:
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTE_ A simple implementation could be
!      `__asm__ __volatile__ ("":::"memory")' to prevent code movements.
  
  
  File: gfortran.info,  Node: _gfortran_caf_error_stop,  Next: _gfortran_caf_error_stop_str,  Prev: _gfortran_caf_sync_memory,  Up: Function ABI Documentation
  
! 8.2.18 `_gfortran_caf_error_stop' -- Error termination with exit code
  ---------------------------------------------------------------------
  
  _Description_:
!      Invoked for an `ERROR STOP' statement which has an integer
       argument.  The function should terminate the program with the
       specified exit code.
  
  _Syntax_:
!      `void _gfortran_caf_error_stop (int32_t error)'
  
  _Arguments_:
!      ERROR      the exit status to be used.
  
  
  File: gfortran.info,  Node: _gfortran_caf_error_stop_str,  Next: _gfortran_caf_atomic_define,  Prev: _gfortran_caf_error_stop,  Up: Function ABI Documentation
  
! 8.2.19 `_gfortran_caf_error_stop_str' -- Error termination with string
  ----------------------------------------------------------------------
  
  _Description_:
!      Invoked for an `ERROR STOP' statement which has a string as
       argument.  The function should terminate the program with a
       nonzero-exit code.
  
  _Syntax_:
!      `void _gfortran_caf_error_stop (const char *string, int32_t len)'
  
  _Arguments_:
!      STRING     the error message (not zero terminated)
!      LEN        the length of the string
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_define,  Next: _gfortran_caf_atomic_ref,  Prev: _gfortran_caf_error_stop_str,  Up: Function ABI Documentation
  
! 8.2.20 `_gfortran_caf_atomic_define' -- Atomic variable assignment
  ------------------------------------------------------------------
  
  _Description_:
       Assign atomically a value to an integer or logical variable.
  
  _Syntax_:
!      `void _gfortran_caf_atomic_define (caf_token_t token, size_t
       offset, int image_index, void *value, int *stat, int type, int
       kind)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      OFFSET     By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 coarray.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number; zero indicates the current image when
!                 used noncoindexed.
!      VALUE      intent(in) the value to be assigned, passed by
!                 reference.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      TYPE       the data type, i.e. `BT_INTEGER' (1) or
!                 `BT_LOGICAL' (2).
!      KIND       The kind value (only 4; always `int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_ref,  Next: _gfortran_caf_atomic_cas,  Prev: _gfortran_caf_atomic_define,  Up: Function ABI Documentation
  
! 8.2.21 `_gfortran_caf_atomic_ref' -- Atomic variable reference
  --------------------------------------------------------------
  
  _Description_:
--- 5057,5210 ----
  
  File: gfortran.info,  Node: _gfortran_caf_sync_all,  Next: _gfortran_caf_sync_images,  Prev: _gfortran_caf_event_query,  Up: Function ABI Documentation
  
! 8.2.15 '_gfortran_caf_sync_all' -- All-image barrier
  ----------------------------------------------------
  
  _Description_:
!      Synchronization of all images in the current team; the program only
!      continues on a given image after this function has been called on
!      all images of the current team.  Additionally, it ensures that all
!      pending data transfers of previous segment have completed.
  
  _Syntax_:
!      'void _gfortran_caf_sync_all (int *stat, char *errmsg, int
       errmsg_len)'
  
  _Arguments_:
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  
  File: gfortran.info,  Node: _gfortran_caf_sync_images,  Next: _gfortran_caf_sync_memory,  Prev: _gfortran_caf_sync_all,  Up: Function ABI Documentation
  
! 8.2.16 '_gfortran_caf_sync_images' -- Barrier for selected images
  -----------------------------------------------------------------
  
  _Description_:
       Synchronization between the specified images; the program only
       continues on a given image after this function has been called on
!      all images specified for that image.  Note that one image can wait
!      for all other images in the current team (e.g.  via 'sync
       images(*)') while those only wait for that specific image.
!      Additionally, 'sync images' it ensures that all pending data
       transfers of previous segment have completed.
  
  _Syntax_:
!      'void _gfortran_caf_sync_images (int count, int images[], int
       *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      COUNT       the number of images which are provided in the
!                  next argument.  For a zero-sized array, the
!                  value is zero.  For 'sync images (*)', the value
!                  is -1.
!      IMAGES      intent(in) an array with the images provided by
!                  the user.  If COUNT is zero, a NULL pointer is
!                  passed.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  
  File: gfortran.info,  Node: _gfortran_caf_sync_memory,  Next: _gfortran_caf_error_stop,  Prev: _gfortran_caf_sync_images,  Up: Function ABI Documentation
  
! 8.2.17 '_gfortran_caf_sync_memory' -- Wait for completion of segment-memory operations
  --------------------------------------------------------------------------------------
  
  _Description_:
!      Acts as optimization barrier between different segments.  It also
       ensures that all pending memory operations of this image have been
       completed.
  
  _Syntax_:
!      'void _gfortran_caf_sync_memory (int *stat, char *errmsg, int
       errmsg_len)'
  
  _Arguments_:
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTE_ A simple implementation could be
!      '__asm__ __volatile__ ("":::"memory")' to prevent code movements.
  
  
  File: gfortran.info,  Node: _gfortran_caf_error_stop,  Next: _gfortran_caf_error_stop_str,  Prev: _gfortran_caf_sync_memory,  Up: Function ABI Documentation
  
! 8.2.18 '_gfortran_caf_error_stop' -- Error termination with exit code
  ---------------------------------------------------------------------
  
  _Description_:
!      Invoked for an 'ERROR STOP' statement which has an integer
       argument.  The function should terminate the program with the
       specified exit code.
  
  _Syntax_:
!      'void _gfortran_caf_error_stop (int32_t error)'
  
  _Arguments_:
!      ERROR       the exit status to be used.
  
  
  File: gfortran.info,  Node: _gfortran_caf_error_stop_str,  Next: _gfortran_caf_atomic_define,  Prev: _gfortran_caf_error_stop,  Up: Function ABI Documentation
  
! 8.2.19 '_gfortran_caf_error_stop_str' -- Error termination with string
  ----------------------------------------------------------------------
  
  _Description_:
!      Invoked for an 'ERROR STOP' statement which has a string as
       argument.  The function should terminate the program with a
       nonzero-exit code.
  
  _Syntax_:
!      'void _gfortran_caf_error_stop (const char *string, int32_t len)'
  
  _Arguments_:
!      STRING      the error message (not zero terminated)
!      LEN         the length of the string
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_define,  Next: _gfortran_caf_atomic_ref,  Prev: _gfortran_caf_error_stop_str,  Up: Function ABI Documentation
  
! 8.2.20 '_gfortran_caf_atomic_define' -- Atomic variable assignment
  ------------------------------------------------------------------
  
  _Description_:
       Assign atomically a value to an integer or logical variable.
  
  _Syntax_:
!      'void _gfortran_caf_atomic_define (caf_token_t token, size_t
       offset, int image_index, void *value, int *stat, int type, int
       kind)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      OFFSET      By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  coarray.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number; zero indicates the current image when
!                  used noncoindexed.
!      VALUE       intent(in) the value to be assigned, passed by
!                  reference.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      TYPE        the data type, i.e.  'BT_INTEGER' (1) or
!                  'BT_LOGICAL' (2).
!      KIND        The kind value (only 4; always 'int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_ref,  Next: _gfortran_caf_atomic_cas,  Prev: _gfortran_caf_atomic_define,  Up: Function ABI Documentation
  
! 8.2.21 '_gfortran_caf_atomic_ref' -- Atomic variable reference
  --------------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 5259,5290 ****
       variable.
  
  _Syntax_:
!      `void _gfortran_caf_atomic_ref (caf_token_t token, size_t offset,
       int image_index, void *value, int *stat, int type, int kind)'
  
  _Arguments_:
- 
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      OFFSET     By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 coarray.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number; zero indicates the current image when
!                 used noncoindexed.
!      VALUE      intent(out) The variable assigned the
!                 atomically referenced variable.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      TYPE       the data type, i.e. `BT_INTEGER' (1) or
!                 `BT_LOGICAL' (2).
!      KIND       The kind value (only 4; always `int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_cas,  Next: _gfortran_caf_atomic_op,  Prev: _gfortran_caf_atomic_ref,  Up: Function ABI Documentation
  
! 8.2.22 `_gfortran_caf_atomic_cas' -- Atomic compare and swap
  ------------------------------------------------------------
  
  _Description_:
--- 5212,5242 ----
       variable.
  
  _Syntax_:
!      'void _gfortran_caf_atomic_ref (caf_token_t token, size_t offset,
       int image_index, void *value, int *stat, int type, int kind)'
  
  _Arguments_:
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      OFFSET      By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  coarray.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number; zero indicates the current image when
!                  used noncoindexed.
!      VALUE       intent(out) The variable assigned the atomically
!                  referenced variable.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      TYPE        the data type, i.e.  'BT_INTEGER' (1) or
!                  'BT_LOGICAL' (2).
!      KIND        The kind value (only 4; always 'int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_cas,  Next: _gfortran_caf_atomic_op,  Prev: _gfortran_caf_atomic_ref,  Up: Function ABI Documentation
  
! 8.2.22 '_gfortran_caf_atomic_cas' -- Atomic compare and swap
  ------------------------------------------------------------
  
  _Description_:
*************** _Description_:
*** 5293,5424 ****
       the latter has the value specified by the passed condition value.
  
  _Syntax_:
!      `void _gfortran_caf_atomic_cas (caf_token_t token, size_t offset,
       int image_index, void *old, void *compare, void *new_val, int
       *stat, int type, int kind)'
  
  _Arguments_:
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      OFFSET     By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 coarray.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number; zero indicates the current image when
!                 used noncoindexed.
!      OLD        intent(out) the value which the atomic
!                 variable had just before the cas operation.
!      COMPARE    intent(in) The value used for comparision.
!      NEW_VAL    intent(in) The new value for the atomic
!                 variable, assigned to the atomic variable, if
!                 `compare' equals the value of the atomic
!                 variable.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      TYPE       the data type, i.e. `BT_INTEGER' (1) or
!                 `BT_LOGICAL' (2).
!      KIND       The kind value (only 4; always `int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_op,  Next: _gfortran_caf_co_broadcast,  Prev: _gfortran_caf_atomic_cas,  Up: Function ABI Documentation
  
! 8.2.23 `_gfortran_caf_atomic_op' -- Atomic operation
  ----------------------------------------------------
  
  _Description_:
       Apply an operation atomically to an atomic integer or logical
       variable.  After the operation, OLD contains the value just before
       the operation, which, respectively, adds (GFC_CAF_ATOMIC_ADD)
!      atomically the `value' to the atomic integer variable or does a
       bitwise AND, OR or exclusive OR of the between the atomic variable
       and VALUE; the result is then stored in the atomic variable.
  
  _Syntax_:
!      `void _gfortran_caf_atomic_op (int op, caf_token_t token, size_t
       offset, int image_index, void *value, void *old, int *stat, int
       type, int kind)'
  
  _Arguments_:
!      OP         the operation to be performed; possible values
!                 `GFC_CAF_ATOMIC_ADD' (1), `GFC_CAF_ATOMIC_AND'
!                 (2), `GFC_CAF_ATOMIC_OR' (3),
!                 `GFC_CAF_ATOMIC_XOR' (4).
!      TOKEN      intent(in) An opaque pointer identifying the
!                 coarray.
!      OFFSET     By which amount of bytes the actual data is
!                 shifted compared to the base address of the
!                 coarray.
!      IMAGE_INDEXThe ID of the remote image; must be a positive
!                 number; zero indicates the current image when
!                 used noncoindexed.
!      OLD        intent(out) the value which the atomic
!                 variable had just before the atomic operation.
!      VAL        intent(in) The new value for the atomic
!                 variable, assigned to the atomic variable, if
!                 `compare' equals the value of the atomic
!                 variable.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      TYPE       the data type, i.e. `BT_INTEGER' (1) or
!                 `BT_LOGICAL' (2).
!      KIND       The kind value (only 4; always `int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_co_broadcast,  Next: _gfortran_caf_co_max,  Prev: _gfortran_caf_atomic_op,  Up: Function ABI Documentation
  
! 8.2.24 `_gfortran_caf_co_broadcast' -- Sending data to all images
  -----------------------------------------------------------------
  
  _Description_:
       Distribute a value from a given image to all other images in the
!      team. Has to be called collectively.
  
  _Syntax_:
!      `void _gfortran_caf_co_broadcast (gfc_descriptor_t *a, int
       source_image, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      A          intent(inout) And array descriptor with the
!                 data to be breoadcasted (on SOURCE_IMAGE) or
!                 to be received (other images).
       SOURCE_IMAGEThe ID of the image from which the data should
!                 be taken.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  
  File: gfortran.info,  Node: _gfortran_caf_co_max,  Next: _gfortran_caf_co_min,  Prev: _gfortran_caf_co_broadcast,  Up: Function ABI Documentation
  
! 8.2.25 `_gfortran_caf_co_max' -- Collective maximum reduction
  -------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the
!      maximum value for that element in the current team; if
!      RESULT_IMAGE has the value 0, the result shall be stored on all
!      images, otherwise, only on the specified image. This function
!      operates on numeric values and character strings.
  
  _Syntax_:
!      `void _gfortran_caf_co_max (gfc_descriptor_t *a, int result_image,
       int *stat, char *errmsg, int a_len, int errmsg_len)'
  
  _Arguments_:
!      A          intent(inout) And array descriptor with the
!                 data to be breoadcasted (on SOURCE_IMAGE) or
!                 to be received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                 should be copied to; if zero, it has to be
!                 copied to all images.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      A_LEN      The string length of argument A.
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
--- 5245,5376 ----
       the latter has the value specified by the passed condition value.
  
  _Syntax_:
!      'void _gfortran_caf_atomic_cas (caf_token_t token, size_t offset,
       int image_index, void *old, void *compare, void *new_val, int
       *stat, int type, int kind)'
  
  _Arguments_:
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      OFFSET      By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  coarray.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number; zero indicates the current image when
!                  used noncoindexed.
!      OLD         intent(out) the value which the atomic variable
!                  had just before the cas operation.
!      COMPARE     intent(in) The value used for comparision.
!      NEW_VAL     intent(in) The new value for the atomic
!                  variable, assigned to the atomic variable, if
!                  'compare' equals the value of the atomic
!                  variable.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      TYPE        the data type, i.e.  'BT_INTEGER' (1) or
!                  'BT_LOGICAL' (2).
!      KIND        The kind value (only 4; always 'int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_atomic_op,  Next: _gfortran_caf_co_broadcast,  Prev: _gfortran_caf_atomic_cas,  Up: Function ABI Documentation
  
! 8.2.23 '_gfortran_caf_atomic_op' -- Atomic operation
  ----------------------------------------------------
  
  _Description_:
       Apply an operation atomically to an atomic integer or logical
       variable.  After the operation, OLD contains the value just before
       the operation, which, respectively, adds (GFC_CAF_ATOMIC_ADD)
!      atomically the 'value' to the atomic integer variable or does a
       bitwise AND, OR or exclusive OR of the between the atomic variable
       and VALUE; the result is then stored in the atomic variable.
  
  _Syntax_:
!      'void _gfortran_caf_atomic_op (int op, caf_token_t token, size_t
       offset, int image_index, void *value, void *old, int *stat, int
       type, int kind)'
  
  _Arguments_:
!      OP          the operation to be performed; possible values
!                  'GFC_CAF_ATOMIC_ADD' (1), 'GFC_CAF_ATOMIC_AND'
!                  (2), 'GFC_CAF_ATOMIC_OR' (3),
!                  'GFC_CAF_ATOMIC_XOR' (4).
!      TOKEN       intent(in) An opaque pointer identifying the
!                  coarray.
!      OFFSET      By which amount of bytes the actual data is
!                  shifted compared to the base address of the
!                  coarray.
!      IMAGE_INDEX The ID of the remote image; must be a positive
!                  number; zero indicates the current image when
!                  used noncoindexed.
!      OLD         intent(out) the value which the atomic variable
!                  had just before the atomic operation.
!      VAL         intent(in) The new value for the atomic
!                  variable, assigned to the atomic variable, if
!                  'compare' equals the value of the atomic
!                  variable.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      TYPE        the data type, i.e.  'BT_INTEGER' (1) or
!                  'BT_LOGICAL' (2).
!      KIND        The kind value (only 4; always 'int')
  
  
  File: gfortran.info,  Node: _gfortran_caf_co_broadcast,  Next: _gfortran_caf_co_max,  Prev: _gfortran_caf_atomic_op,  Up: Function ABI Documentation
  
! 8.2.24 '_gfortran_caf_co_broadcast' -- Sending data to all images
  -----------------------------------------------------------------
  
  _Description_:
       Distribute a value from a given image to all other images in the
!      team.  Has to be called collectively.
  
  _Syntax_:
!      'void _gfortran_caf_co_broadcast (gfc_descriptor_t *a, int
       source_image, int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      A           intent(inout) And array descriptor with the data
!                  to be breoadcasted (on SOURCE_IMAGE) or to be
!                  received (other images).
       SOURCE_IMAGEThe ID of the image from which the data should
!                  be taken.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  
  File: gfortran.info,  Node: _gfortran_caf_co_max,  Next: _gfortran_caf_co_min,  Prev: _gfortran_caf_co_broadcast,  Up: Function ABI Documentation
  
! 8.2.25 '_gfortran_caf_co_max' -- Collective maximum reduction
  -------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the
!      maximum value for that element in the current team; if RESULT_IMAGE
!      has the value 0, the result shall be stored on all images,
!      otherwise, only on the specified image.  This function operates on
!      numeric values and character strings.
  
  _Syntax_:
!      'void _gfortran_caf_co_max (gfc_descriptor_t *a, int result_image,
       int *stat, char *errmsg, int a_len, int errmsg_len)'
  
  _Arguments_:
!      A           intent(inout) And array descriptor with the data
!                  to be breoadcasted (on SOURCE_IMAGE) or to be
!                  received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                  should be copied to; if zero, it has to be
!                  copied to all images.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      A_LEN       The string length of argument A.
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
*************** _NOTES_
*** 5428,5460 ****
  
  File: gfortran.info,  Node: _gfortran_caf_co_min,  Next: _gfortran_caf_co_sum,  Prev: _gfortran_caf_co_max,  Up: Function ABI Documentation
  
! 8.2.26 `_gfortran_caf_co_min' -- Collective minimum reduction
  -------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the
!      minimum value for that element in the current team; if
!      RESULT_IMAGE has the value 0, the result shall be stored on all
!      images, otherwise, only on the specified image. This function
!      operates on numeric values and character strings.
  
  _Syntax_:
!      `void _gfortran_caf_co_min (gfc_descriptor_t *a, int result_image,
       int *stat, char *errmsg, int a_len, int errmsg_len)'
  
  _Arguments_:
!      A          intent(inout) And array descriptor with the
!                 data to be breoadcasted (on SOURCE_IMAGE) or
!                 to be received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                 should be copied to; if zero, it has to be
!                 copied to all images.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      A_LEN      The string length of argument A.
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
--- 5380,5412 ----
  
  File: gfortran.info,  Node: _gfortran_caf_co_min,  Next: _gfortran_caf_co_sum,  Prev: _gfortran_caf_co_max,  Up: Function ABI Documentation
  
! 8.2.26 '_gfortran_caf_co_min' -- Collective minimum reduction
  -------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the
!      minimum value for that element in the current team; if RESULT_IMAGE
!      has the value 0, the result shall be stored on all images,
!      otherwise, only on the specified image.  This function operates on
!      numeric values and character strings.
  
  _Syntax_:
!      'void _gfortran_caf_co_min (gfc_descriptor_t *a, int result_image,
       int *stat, char *errmsg, int a_len, int errmsg_len)'
  
  _Arguments_:
!      A           intent(inout) And array descriptor with the data
!                  to be breoadcasted (on SOURCE_IMAGE) or to be
!                  received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                  should be copied to; if zero, it has to be
!                  copied to all images.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      A_LEN       The string length of argument A.
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
*************** _NOTES_
*** 5464,5494 ****
  
  File: gfortran.info,  Node: _gfortran_caf_co_sum,  Next: _gfortran_caf_co_reduce,  Prev: _gfortran_caf_co_min,  Up: Function ABI Documentation
  
! 8.2.27 `_gfortran_caf_co_sum' -- Collective summing reduction
  -------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the sum
       value for that element in the current team; if RESULT_IMAGE has the
       value 0, the result shall be stored on all images, otherwise, only
!      on the specified image. This function operates on numeric values.
  
  _Syntax_:
!      `void _gfortran_caf_co_sum (gfc_descriptor_t *a, int result_image,
       int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      A          intent(inout) And array descriptor with the
!                 data to be breoadcasted (on SOURCE_IMAGE) or
!                 to be received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                 should be copied to; if zero, it has to be
!                 copied to all images.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
--- 5416,5446 ----
  
  File: gfortran.info,  Node: _gfortran_caf_co_sum,  Next: _gfortran_caf_co_reduce,  Prev: _gfortran_caf_co_min,  Up: Function ABI Documentation
  
! 8.2.27 '_gfortran_caf_co_sum' -- Collective summing reduction
  -------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the sum
       value for that element in the current team; if RESULT_IMAGE has the
       value 0, the result shall be stored on all images, otherwise, only
!      on the specified image.  This function operates on numeric values.
  
  _Syntax_:
!      'void _gfortran_caf_co_sum (gfc_descriptor_t *a, int result_image,
       int *stat, char *errmsg, int errmsg_len)'
  
  _Arguments_:
!      A           intent(inout) And array descriptor with the data
!                  to be breoadcasted (on SOURCE_IMAGE) or to be
!                  received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                  should be copied to; if zero, it has to be
!                  copied to all images.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
*************** _NOTES_
*** 5498,5552 ****
  
  File: gfortran.info,  Node: _gfortran_caf_co_reduce,  Prev: _gfortran_caf_co_sum,  Up: Function ABI Documentation
  
! 8.2.28 `_gfortran_caf_co_reduce' -- Generic collective reduction
  ----------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the
       reduction value for that element in the current team; if
       RESULT_IMAGE has the value 0, the result shall be stored on all
!      images, otherwise, only on the specified image. The OPR is a pure
       function doing a mathematically commutative and associative
       operation.
  
       The OPR_FLAGS denote the following; the values are bitwise ored.
!      `GFC_CAF_BYREF' (1) if the result should be returned by value;
!      `GFC_CAF_HIDDENLEN' (2) whether the result and argument string
!      lengths shall be specified as hidden argument; `GFC_CAF_ARG_VALUE'
       (4) whether the arguments shall be passed by value,
!      `GFC_CAF_ARG_DESC' (8) whether the arguments shall be passed by
       descriptor.
  
  _Syntax_:
!      `void _gfortran_caf_co_reduce (gfc_descriptor_t *a, void * (*opr)
       (void *, void *), int opr_flags, int result_image, int *stat, char
       *errmsg, int a_len, int errmsg_len)'
  
  _Arguments_:
!      OPR        Function pointer to the reduction function.
!      OPR_FLAGS  Flags regarding the reduction function
!      A          intent(inout) And array descriptor with the
!                 data to be breoadcasted (on SOURCE_IMAGE) or
!                 to be received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                 should be copied to; if zero, it has to be
!                 copied to all images.
!      STAT       intent(out) Stores the status STAT= and may be
!                 NULL.
!      ERRMSG     intent(out) When an error occurs, this will be
!                 set to an error message; may be NULL
!      A_LEN      The string length of argument A.
!      ERRMSG_LEN the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
       specified one become undefined; hence, the library may make use of
       this.  For character arguments, the result is passed as first
       argument, followed by the result string length, next come the two
!      string arguments, followed by the two hidden arguments. With C
!      binding, there are no hidden arguments and by-reference passing
!      and either only a single character is passed or an array
!      descriptor.
  
  
  File: gfortran.info,  Node: Intrinsic Procedures,  Next: Intrinsic Modules,  Prev: Coarray Programming,  Up: Top
--- 5450,5503 ----
  
  File: gfortran.info,  Node: _gfortran_caf_co_reduce,  Prev: _gfortran_caf_co_sum,  Up: Function ABI Documentation
  
! 8.2.28 '_gfortran_caf_co_reduce' -- Generic collective reduction
  ----------------------------------------------------------------
  
  _Description_:
       Calculates the for the each array element of the variable A the
       reduction value for that element in the current team; if
       RESULT_IMAGE has the value 0, the result shall be stored on all
!      images, otherwise, only on the specified image.  The OPR is a pure
       function doing a mathematically commutative and associative
       operation.
  
       The OPR_FLAGS denote the following; the values are bitwise ored.
!      'GFC_CAF_BYREF' (1) if the result should be returned by value;
!      'GFC_CAF_HIDDENLEN' (2) whether the result and argument string
!      lengths shall be specified as hidden argument; 'GFC_CAF_ARG_VALUE'
       (4) whether the arguments shall be passed by value,
!      'GFC_CAF_ARG_DESC' (8) whether the arguments shall be passed by
       descriptor.
  
  _Syntax_:
!      'void _gfortran_caf_co_reduce (gfc_descriptor_t *a, void * (*opr)
       (void *, void *), int opr_flags, int result_image, int *stat, char
       *errmsg, int a_len, int errmsg_len)'
  
  _Arguments_:
!      OPR         Function pointer to the reduction function.
!      OPR_FLAGS   Flags regarding the reduction function
!      A           intent(inout) And array descriptor with the data
!                  to be breoadcasted (on SOURCE_IMAGE) or to be
!                  received (other images).
       RESULT_IMAGEThe ID of the image to which the reduced value
!                  should be copied to; if zero, it has to be
!                  copied to all images.
!      STAT        intent(out) Stores the status STAT= and may be
!                  NULL.
!      ERRMSG      intent(out) When an error occurs, this will be
!                  set to an error message; may be NULL
!      A_LEN       The string length of argument A.
!      ERRMSG_LEN  the buffer size of errmsg.
  
  _NOTES_
       If RESULT_IMAGE is nonzero, the value on all images except of the
       specified one become undefined; hence, the library may make use of
       this.  For character arguments, the result is passed as first
       argument, followed by the result string length, next come the two
!      string arguments, followed by the two hidden arguments.  With C
!      binding, there are no hidden arguments and by-reference passing and
!      either only a single character is passed or an array descriptor.
  
  
  File: gfortran.info,  Node: Intrinsic Procedures,  Next: Intrinsic Modules,  Prev: Coarray Programming,  Up: Top
*************** File: gfortran.info,  Node: Intrinsic Pr
*** 5557,5833 ****
  * Menu:
  
  * Introduction:         Introduction to Intrinsics
! * `ABORT':         ABORT,     Abort the program
! * `ABS':           ABS,       Absolute value
! * `ACCESS':        ACCESS,    Checks file access modes
! * `ACHAR':         ACHAR,     Character in ASCII collating sequence
! * `ACOS':          ACOS,      Arccosine function
! * `ACOSH':         ACOSH,     Inverse hyperbolic cosine function
! * `ADJUSTL':       ADJUSTL,   Left adjust a string
! * `ADJUSTR':       ADJUSTR,   Right adjust a string
! * `AIMAG':         AIMAG,     Imaginary part of complex number
! * `AINT':          AINT,      Truncate to a whole number
! * `ALARM':         ALARM,     Set an alarm clock
! * `ALL':           ALL,       Determine if all values are true
! * `ALLOCATED':     ALLOCATED, Status of allocatable entity
! * `AND':           AND,       Bitwise logical AND
! * `ANINT':         ANINT,     Nearest whole number
! * `ANY':           ANY,       Determine if any values are true
! * `ASIN':          ASIN,      Arcsine function
! * `ASINH':         ASINH,     Inverse hyperbolic sine function
! * `ASSOCIATED':    ASSOCIATED, Status of a pointer or pointer/target pair
! * `ATAN':          ATAN,      Arctangent function
! * `ATAN2':         ATAN2,     Arctangent function
! * `ATANH':         ATANH,     Inverse hyperbolic tangent function
! * `ATOMIC_ADD':    ATOMIC_ADD, Atomic ADD operation
! * `ATOMIC_AND':    ATOMIC_AND, Atomic bitwise AND operation
! * `ATOMIC_CAS':    ATOMIC_CAS, Atomic compare and swap
! * `ATOMIC_DEFINE': ATOMIC_DEFINE, Setting a variable atomically
! * `ATOMIC_FETCH_ADD': ATOMIC_FETCH_ADD, Atomic ADD operation with prior fetch
! * `ATOMIC_FETCH_AND': ATOMIC_FETCH_AND, Atomic bitwise AND operation with prior fetch
! * `ATOMIC_FETCH_OR': ATOMIC_FETCH_OR, Atomic bitwise OR operation with prior fetch
! * `ATOMIC_FETCH_XOR': ATOMIC_FETCH_XOR, Atomic bitwise XOR operation with prior fetch
! * `ATOMIC_OR':     ATOMIC_OR, Atomic bitwise OR operation
! * `ATOMIC_REF':    ATOMIC_REF, Obtaining the value of a variable atomically
! * `ATOMIC_XOR':    ATOMIC_XOR, Atomic bitwise OR operation
! * `BACKTRACE':     BACKTRACE, Show a backtrace
! * `BESSEL_J0':     BESSEL_J0, Bessel function of the first kind of order 0
! * `BESSEL_J1':     BESSEL_J1, Bessel function of the first kind of order 1
! * `BESSEL_JN':     BESSEL_JN, Bessel function of the first kind
! * `BESSEL_Y0':     BESSEL_Y0, Bessel function of the second kind of order 0
! * `BESSEL_Y1':     BESSEL_Y1, Bessel function of the second kind of order 1
! * `BESSEL_YN':     BESSEL_YN, Bessel function of the second kind
! * `BGE':           BGE,       Bitwise greater than or equal to
! * `BGT':           BGT,       Bitwise greater than
! * `BIT_SIZE':      BIT_SIZE,  Bit size inquiry function
! * `BLE':           BLE,       Bitwise less than or equal to
! * `BLT':           BLT,       Bitwise less than
! * `BTEST':         BTEST,     Bit test function
! * `C_ASSOCIATED':  C_ASSOCIATED, Status of a C pointer
! * `C_F_POINTER':   C_F_POINTER, Convert C into Fortran pointer
! * `C_F_PROCPOINTER': C_F_PROCPOINTER, Convert C into Fortran procedure pointer
! * `C_FUNLOC':      C_FUNLOC,  Obtain the C address of a procedure
! * `C_LOC':         C_LOC,     Obtain the C address of an object
! * `C_SIZEOF':      C_SIZEOF,  Size in bytes of an expression
! * `CEILING':       CEILING,   Integer ceiling function
! * `CHAR':          CHAR,      Integer-to-character conversion function
! * `CHDIR':         CHDIR,     Change working directory
! * `CHMOD':         CHMOD,     Change access permissions of files
! * `CMPLX':         CMPLX,     Complex conversion function
! * `CO_BROADCAST':  CO_BROADCAST, Copy a value to all images the current set of images
! * `CO_MAX':        CO_MAX,    Maximal value on the current set of images
! * `CO_MIN':        CO_MIN,    Minimal value on the current set of images
! * `CO_REDUCE':     CO_REDUCE, Reduction of values on the current set of images
! * `CO_SUM':        CO_SUM,    Sum of values on the current set of images
! * `COMMAND_ARGUMENT_COUNT': COMMAND_ARGUMENT_COUNT, Get number of command line arguments
! * `COMPILER_OPTIONS': COMPILER_OPTIONS, Options passed to the compiler
! * `COMPILER_VERSION': COMPILER_VERSION, Compiler version string
! * `COMPLEX':       COMPLEX,   Complex conversion function
! * `CONJG':         CONJG,     Complex conjugate function
! * `COS':           COS,       Cosine function
! * `COSH':          COSH,      Hyperbolic cosine function
! * `COUNT':         COUNT,     Count occurrences of TRUE in an array
! * `CPU_TIME':      CPU_TIME,  CPU time subroutine
! * `CSHIFT':        CSHIFT,    Circular shift elements of an array
! * `CTIME':         CTIME,     Subroutine (or function) to convert a time into a string
! * `DATE_AND_TIME': DATE_AND_TIME, Date and time subroutine
! * `DBLE':          DBLE,      Double precision conversion function
! * `DCMPLX':        DCMPLX,    Double complex conversion function
! * `DIGITS':        DIGITS,    Significant digits function
! * `DIM':           DIM,       Positive difference
! * `DOT_PRODUCT':   DOT_PRODUCT, Dot product function
! * `DPROD':         DPROD,     Double product function
! * `DREAL':         DREAL,     Double real part function
! * `DSHIFTL':       DSHIFTL,   Combined left shift
! * `DSHIFTR':       DSHIFTR,   Combined right shift
! * `DTIME':         DTIME,     Execution time subroutine (or function)
! * `EOSHIFT':       EOSHIFT,   End-off shift elements of an array
! * `EPSILON':       EPSILON,   Epsilon function
! * `ERF':           ERF,       Error function
! * `ERFC':          ERFC,      Complementary error function
! * `ERFC_SCALED':   ERFC_SCALED, Exponentially-scaled complementary error function
! * `ETIME':         ETIME,     Execution time subroutine (or function)
! * `EVENT_QUERY': EVENT_QUERY, Query whether a coarray event has occurred
! * `EXECUTE_COMMAND_LINE': EXECUTE_COMMAND_LINE, Execute a shell command
! * `EXIT':          EXIT,      Exit the program with status.
! * `EXP':           EXP,       Exponential function
! * `EXPONENT':      EXPONENT,  Exponent function
! * `EXTENDS_TYPE_OF': EXTENDS_TYPE_OF,  Query dynamic type for extension
! * `FDATE':         FDATE,     Subroutine (or function) to get the current time as a string
! * `FGET':          FGET,      Read a single character in stream mode from stdin
! * `FGETC':         FGETC,     Read a single character in stream mode
! * `FLOOR':         FLOOR,     Integer floor function
! * `FLUSH':         FLUSH,     Flush I/O unit(s)
! * `FNUM':          FNUM,      File number function
! * `FPUT':          FPUT,      Write a single character in stream mode to stdout
! * `FPUTC':         FPUTC,     Write a single character in stream mode
! * `FRACTION':      FRACTION,  Fractional part of the model representation
! * `FREE':          FREE,      Memory de-allocation subroutine
! * `FSEEK':         FSEEK,     Low level file positioning subroutine
! * `FSTAT':         FSTAT,     Get file status
! * `FTELL':         FTELL,     Current stream position
! * `GAMMA':         GAMMA,     Gamma function
! * `GERROR':        GERROR,    Get last system error message
! * `GETARG':        GETARG,    Get command line arguments
! * `GET_COMMAND':   GET_COMMAND, Get the entire command line
! * `GET_COMMAND_ARGUMENT': GET_COMMAND_ARGUMENT, Get command line arguments
! * `GETCWD':        GETCWD,    Get current working directory
! * `GETENV':        GETENV,    Get an environmental variable
! * `GET_ENVIRONMENT_VARIABLE': GET_ENVIRONMENT_VARIABLE, Get an environmental variable
! * `GETGID':        GETGID,    Group ID function
! * `GETLOG':        GETLOG,    Get login name
! * `GETPID':        GETPID,    Process ID function
! * `GETUID':        GETUID,    User ID function
! * `GMTIME':        GMTIME,    Convert time to GMT info
! * `HOSTNM':        HOSTNM,    Get system host name
! * `HUGE':          HUGE,      Largest number of a kind
! * `HYPOT':         HYPOT,     Euclidean distance function
! * `IACHAR':        IACHAR,    Code in ASCII collating sequence
! * `IALL':          IALL,      Bitwise AND of array elements
! * `IAND':          IAND,      Bitwise logical and
! * `IANY':          IANY,      Bitwise OR of array elements
! * `IARGC':         IARGC,     Get the number of command line arguments
! * `IBCLR':         IBCLR,     Clear bit
! * `IBITS':         IBITS,     Bit extraction
! * `IBSET':         IBSET,     Set bit
! * `ICHAR':         ICHAR,     Character-to-integer conversion function
! * `IDATE':         IDATE,     Current local time (day/month/year)
! * `IEOR':          IEOR,      Bitwise logical exclusive or
! * `IERRNO':        IERRNO,    Function to get the last system error number
! * `IMAGE_INDEX':   IMAGE_INDEX, Cosubscript to image index conversion
! * `INDEX':         INDEX intrinsic, Position of a substring within a string
! * `INT':           INT,       Convert to integer type
! * `INT2':          INT2,      Convert to 16-bit integer type
! * `INT8':          INT8,      Convert to 64-bit integer type
! * `IOR':           IOR,       Bitwise logical or
! * `IPARITY':       IPARITY,   Bitwise XOR of array elements
! * `IRAND':         IRAND,     Integer pseudo-random number
! * `IS_IOSTAT_END':  IS_IOSTAT_END, Test for end-of-file value
! * `IS_IOSTAT_EOR':  IS_IOSTAT_EOR, Test for end-of-record value
! * `ISATTY':        ISATTY,    Whether a unit is a terminal device
! * `ISHFT':         ISHFT,     Shift bits
! * `ISHFTC':        ISHFTC,    Shift bits circularly
! * `ISNAN':         ISNAN,     Tests for a NaN
! * `ITIME':         ITIME,     Current local time (hour/minutes/seconds)
! * `KILL':          KILL,      Send a signal to a process
! * `KIND':          KIND,      Kind of an entity
! * `LBOUND':        LBOUND,    Lower dimension bounds of an array
! * `LCOBOUND':      LCOBOUND,  Lower codimension bounds of an array
! * `LEADZ':         LEADZ,     Number of leading zero bits of an integer
! * `LEN':           LEN,       Length of a character entity
! * `LEN_TRIM':      LEN_TRIM,  Length of a character entity without trailing blank characters
! * `LGE':           LGE,       Lexical greater than or equal
! * `LGT':           LGT,       Lexical greater than
! * `LINK':          LINK,      Create a hard link
! * `LLE':           LLE,       Lexical less than or equal
! * `LLT':           LLT,       Lexical less than
! * `LNBLNK':        LNBLNK,    Index of the last non-blank character in a string
! * `LOC':           LOC,       Returns the address of a variable
! * `LOG':           LOG,       Logarithm function
! * `LOG10':         LOG10,     Base 10 logarithm function
! * `LOG_GAMMA':     LOG_GAMMA, Logarithm of the Gamma function
! * `LOGICAL':       LOGICAL,   Convert to logical type
! * `LONG':          LONG,      Convert to integer type
! * `LSHIFT':        LSHIFT,    Left shift bits
! * `LSTAT':         LSTAT,     Get file status
! * `LTIME':         LTIME,     Convert time to local time info
! * `MALLOC':        MALLOC,    Dynamic memory allocation function
! * `MASKL':         MASKL,     Left justified mask
! * `MASKR':         MASKR,     Right justified mask
! * `MATMUL':        MATMUL,    matrix multiplication
! * `MAX':           MAX,       Maximum value of an argument list
! * `MAXEXPONENT':   MAXEXPONENT, Maximum exponent of a real kind
! * `MAXLOC':        MAXLOC,    Location of the maximum value within an array
! * `MAXVAL':        MAXVAL,    Maximum value of an array
! * `MCLOCK':        MCLOCK,    Time function
! * `MCLOCK8':       MCLOCK8,   Time function (64-bit)
! * `MERGE':         MERGE,     Merge arrays
! * `MERGE_BITS':    MERGE_BITS, Merge of bits under mask
! * `MIN':           MIN,       Minimum value of an argument list
! * `MINEXPONENT':   MINEXPONENT, Minimum exponent of a real kind
! * `MINLOC':        MINLOC,    Location of the minimum value within an array
! * `MINVAL':        MINVAL,    Minimum value of an array
! * `MOD':           MOD,       Remainder function
! * `MODULO':        MODULO,    Modulo function
! * `MOVE_ALLOC':    MOVE_ALLOC, Move allocation from one object to another
! * `MVBITS':        MVBITS,    Move bits from one integer to another
! * `NEAREST':       NEAREST,   Nearest representable number
! * `NEW_LINE':      NEW_LINE,  New line character
! * `NINT':          NINT,      Nearest whole number
! * `NORM2':         NORM2,     Euclidean vector norm
! * `NOT':           NOT,       Logical negation
! * `NULL':          NULL,      Function that returns an disassociated pointer
! * `NUM_IMAGES':    NUM_IMAGES, Number of images
! * `OR':            OR,        Bitwise logical OR
! * `PACK':          PACK,      Pack an array into an array of rank one
! * `PARITY':        PARITY,    Reduction with exclusive OR
! * `PERROR':        PERROR,    Print system error message
! * `POPCNT':        POPCNT,    Number of bits set
! * `POPPAR':        POPPAR,    Parity of the number of bits set
! * `PRECISION':     PRECISION, Decimal precision of a real kind
! * `PRESENT':       PRESENT,   Determine whether an optional dummy argument is specified
! * `PRODUCT':       PRODUCT,   Product of array elements
! * `RADIX':         RADIX,     Base of a data model
! * `RAN':           RAN,       Real pseudo-random number
! * `RAND':          RAND,      Real pseudo-random number
! * `RANDOM_NUMBER': RANDOM_NUMBER, Pseudo-random number
! * `RANDOM_SEED':   RANDOM_SEED, Initialize a pseudo-random number sequence
! * `RANGE':         RANGE,     Decimal exponent range
! * `RANK' :         RANK,      Rank of a data object
! * `REAL':          REAL,      Convert to real type
! * `RENAME':        RENAME,    Rename a file
! * `REPEAT':        REPEAT,    Repeated string concatenation
! * `RESHAPE':       RESHAPE,   Function to reshape an array
! * `RRSPACING':     RRSPACING, Reciprocal of the relative spacing
! * `RSHIFT':        RSHIFT,    Right shift bits
! * `SAME_TYPE_AS':  SAME_TYPE_AS,  Query dynamic types for equality
! * `SCALE':         SCALE,     Scale a real value
! * `SCAN':          SCAN,      Scan a string for the presence of a set of characters
! * `SECNDS':        SECNDS,    Time function
! * `SECOND':        SECOND,    CPU time function
! * `SELECTED_CHAR_KIND': SELECTED_CHAR_KIND,  Choose character kind
! * `SELECTED_INT_KIND': SELECTED_INT_KIND,  Choose integer kind
! * `SELECTED_REAL_KIND': SELECTED_REAL_KIND,  Choose real kind
! * `SET_EXPONENT':  SET_EXPONENT, Set the exponent of the model
! * `SHAPE':         SHAPE,     Determine the shape of an array
! * `SHIFTA':        SHIFTA,    Right shift with fill
! * `SHIFTL':        SHIFTL,    Left shift
! * `SHIFTR':        SHIFTR,    Right shift
! * `SIGN':          SIGN,      Sign copying function
! * `SIGNAL':        SIGNAL,    Signal handling subroutine (or function)
! * `SIN':           SIN,       Sine function
! * `SINH':          SINH,      Hyperbolic sine function
! * `SIZE':          SIZE,      Function to determine the size of an array
! * `SIZEOF':        SIZEOF,    Determine the size in bytes of an expression
! * `SLEEP':         SLEEP,     Sleep for the specified number of seconds
! * `SPACING':       SPACING,   Smallest distance between two numbers of a given type
! * `SPREAD':        SPREAD,    Add a dimension to an array
! * `SQRT':          SQRT,      Square-root function
! * `SRAND':         SRAND,     Reinitialize the random number generator
! * `STAT':          STAT,      Get file status
! * `STORAGE_SIZE':  STORAGE_SIZE, Storage size in bits
! * `SUM':           SUM,       Sum of array elements
! * `SYMLNK':        SYMLNK,    Create a symbolic link
! * `SYSTEM':        SYSTEM,    Execute a shell command
! * `SYSTEM_CLOCK':  SYSTEM_CLOCK, Time function
! * `TAN':           TAN,       Tangent function
! * `TANH':          TANH,      Hyperbolic tangent function
! * `THIS_IMAGE':    THIS_IMAGE, Cosubscript index of this image
! * `TIME':          TIME,      Time function
! * `TIME8':         TIME8,     Time function (64-bit)
! * `TINY':          TINY,      Smallest positive number of a real kind
! * `TRAILZ':        TRAILZ,    Number of trailing zero bits of an integer
! * `TRANSFER':      TRANSFER,  Transfer bit patterns
! * `TRANSPOSE':     TRANSPOSE, Transpose an array of rank two
! * `TRIM':          TRIM,      Remove trailing blank characters of a string
! * `TTYNAM':        TTYNAM,    Get the name of a terminal device.
! * `UBOUND':        UBOUND,    Upper dimension bounds of an array
! * `UCOBOUND':      UCOBOUND,  Upper codimension bounds of an array
! * `UMASK':         UMASK,     Set the file creation mask
! * `UNLINK':        UNLINK,    Remove a file from the file system
! * `UNPACK':        UNPACK,    Unpack an array of rank one into an array
! * `VERIFY':        VERIFY,    Scan a string for the absence of a set of characters
! * `XOR':           XOR,       Bitwise logical exclusive or
  
  
  File: gfortran.info,  Node: Introduction to Intrinsics,  Next: ABORT,  Up: Intrinsic Procedures
--- 5508,5784 ----
  * Menu:
  
  * Introduction:         Introduction to Intrinsics
! * 'ABORT':         ABORT,     Abort the program
! * 'ABS':           ABS,       Absolute value
! * 'ACCESS':        ACCESS,    Checks file access modes
! * 'ACHAR':         ACHAR,     Character in ASCII collating sequence
! * 'ACOS':          ACOS,      Arccosine function
! * 'ACOSH':         ACOSH,     Inverse hyperbolic cosine function
! * 'ADJUSTL':       ADJUSTL,   Left adjust a string
! * 'ADJUSTR':       ADJUSTR,   Right adjust a string
! * 'AIMAG':         AIMAG,     Imaginary part of complex number
! * 'AINT':          AINT,      Truncate to a whole number
! * 'ALARM':         ALARM,     Set an alarm clock
! * 'ALL':           ALL,       Determine if all values are true
! * 'ALLOCATED':     ALLOCATED, Status of allocatable entity
! * 'AND':           AND,       Bitwise logical AND
! * 'ANINT':         ANINT,     Nearest whole number
! * 'ANY':           ANY,       Determine if any values are true
! * 'ASIN':          ASIN,      Arcsine function
! * 'ASINH':         ASINH,     Inverse hyperbolic sine function
! * 'ASSOCIATED':    ASSOCIATED, Status of a pointer or pointer/target pair
! * 'ATAN':          ATAN,      Arctangent function
! * 'ATAN2':         ATAN2,     Arctangent function
! * 'ATANH':         ATANH,     Inverse hyperbolic tangent function
! * 'ATOMIC_ADD':    ATOMIC_ADD, Atomic ADD operation
! * 'ATOMIC_AND':    ATOMIC_AND, Atomic bitwise AND operation
! * 'ATOMIC_CAS':    ATOMIC_CAS, Atomic compare and swap
! * 'ATOMIC_DEFINE': ATOMIC_DEFINE, Setting a variable atomically
! * 'ATOMIC_FETCH_ADD': ATOMIC_FETCH_ADD, Atomic ADD operation with prior fetch
! * 'ATOMIC_FETCH_AND': ATOMIC_FETCH_AND, Atomic bitwise AND operation with prior fetch
! * 'ATOMIC_FETCH_OR': ATOMIC_FETCH_OR, Atomic bitwise OR operation with prior fetch
! * 'ATOMIC_FETCH_XOR': ATOMIC_FETCH_XOR, Atomic bitwise XOR operation with prior fetch
! * 'ATOMIC_OR':     ATOMIC_OR, Atomic bitwise OR operation
! * 'ATOMIC_REF':    ATOMIC_REF, Obtaining the value of a variable atomically
! * 'ATOMIC_XOR':    ATOMIC_XOR, Atomic bitwise OR operation
! * 'BACKTRACE':     BACKTRACE, Show a backtrace
! * 'BESSEL_J0':     BESSEL_J0, Bessel function of the first kind of order 0
! * 'BESSEL_J1':     BESSEL_J1, Bessel function of the first kind of order 1
! * 'BESSEL_JN':     BESSEL_JN, Bessel function of the first kind
! * 'BESSEL_Y0':     BESSEL_Y0, Bessel function of the second kind of order 0
! * 'BESSEL_Y1':     BESSEL_Y1, Bessel function of the second kind of order 1
! * 'BESSEL_YN':     BESSEL_YN, Bessel function of the second kind
! * 'BGE':           BGE,       Bitwise greater than or equal to
! * 'BGT':           BGT,       Bitwise greater than
! * 'BIT_SIZE':      BIT_SIZE,  Bit size inquiry function
! * 'BLE':           BLE,       Bitwise less than or equal to
! * 'BLT':           BLT,       Bitwise less than
! * 'BTEST':         BTEST,     Bit test function
! * 'C_ASSOCIATED':  C_ASSOCIATED, Status of a C pointer
! * 'C_F_POINTER':   C_F_POINTER, Convert C into Fortran pointer
! * 'C_F_PROCPOINTER': C_F_PROCPOINTER, Convert C into Fortran procedure pointer
! * 'C_FUNLOC':      C_FUNLOC,  Obtain the C address of a procedure
! * 'C_LOC':         C_LOC,     Obtain the C address of an object
! * 'C_SIZEOF':      C_SIZEOF,  Size in bytes of an expression
! * 'CEILING':       CEILING,   Integer ceiling function
! * 'CHAR':          CHAR,      Integer-to-character conversion function
! * 'CHDIR':         CHDIR,     Change working directory
! * 'CHMOD':         CHMOD,     Change access permissions of files
! * 'CMPLX':         CMPLX,     Complex conversion function
! * 'CO_BROADCAST':  CO_BROADCAST, Copy a value to all images the current set of images
! * 'CO_MAX':        CO_MAX,    Maximal value on the current set of images
! * 'CO_MIN':        CO_MIN,    Minimal value on the current set of images
! * 'CO_REDUCE':     CO_REDUCE, Reduction of values on the current set of images
! * 'CO_SUM':        CO_SUM,    Sum of values on the current set of images
! * 'COMMAND_ARGUMENT_COUNT': COMMAND_ARGUMENT_COUNT, Get number of command line arguments
! * 'COMPILER_OPTIONS': COMPILER_OPTIONS, Options passed to the compiler
! * 'COMPILER_VERSION': COMPILER_VERSION, Compiler version string
! * 'COMPLEX':       COMPLEX,   Complex conversion function
! * 'CONJG':         CONJG,     Complex conjugate function
! * 'COS':           COS,       Cosine function
! * 'COSH':          COSH,      Hyperbolic cosine function
! * 'COUNT':         COUNT,     Count occurrences of TRUE in an array
! * 'CPU_TIME':      CPU_TIME,  CPU time subroutine
! * 'CSHIFT':        CSHIFT,    Circular shift elements of an array
! * 'CTIME':         CTIME,     Subroutine (or function) to convert a time into a string
! * 'DATE_AND_TIME': DATE_AND_TIME, Date and time subroutine
! * 'DBLE':          DBLE,      Double precision conversion function
! * 'DCMPLX':        DCMPLX,    Double complex conversion function
! * 'DIGITS':        DIGITS,    Significant digits function
! * 'DIM':           DIM,       Positive difference
! * 'DOT_PRODUCT':   DOT_PRODUCT, Dot product function
! * 'DPROD':         DPROD,     Double product function
! * 'DREAL':         DREAL,     Double real part function
! * 'DSHIFTL':       DSHIFTL,   Combined left shift
! * 'DSHIFTR':       DSHIFTR,   Combined right shift
! * 'DTIME':         DTIME,     Execution time subroutine (or function)
! * 'EOSHIFT':       EOSHIFT,   End-off shift elements of an array
! * 'EPSILON':       EPSILON,   Epsilon function
! * 'ERF':           ERF,       Error function
! * 'ERFC':          ERFC,      Complementary error function
! * 'ERFC_SCALED':   ERFC_SCALED, Exponentially-scaled complementary error function
! * 'ETIME':         ETIME,     Execution time subroutine (or function)
! * 'EVENT_QUERY': EVENT_QUERY, Query whether a coarray event has occurred
! * 'EXECUTE_COMMAND_LINE': EXECUTE_COMMAND_LINE, Execute a shell command
! * 'EXIT':          EXIT,      Exit the program with status.
! * 'EXP':           EXP,       Exponential function
! * 'EXPONENT':      EXPONENT,  Exponent function
! * 'EXTENDS_TYPE_OF': EXTENDS_TYPE_OF,  Query dynamic type for extension
! * 'FDATE':         FDATE,     Subroutine (or function) to get the current time as a string
! * 'FGET':          FGET,      Read a single character in stream mode from stdin
! * 'FGETC':         FGETC,     Read a single character in stream mode
! * 'FLOOR':         FLOOR,     Integer floor function
! * 'FLUSH':         FLUSH,     Flush I/O unit(s)
! * 'FNUM':          FNUM,      File number function
! * 'FPUT':          FPUT,      Write a single character in stream mode to stdout
! * 'FPUTC':         FPUTC,     Write a single character in stream mode
! * 'FRACTION':      FRACTION,  Fractional part of the model representation
! * 'FREE':          FREE,      Memory de-allocation subroutine
! * 'FSEEK':         FSEEK,     Low level file positioning subroutine
! * 'FSTAT':         FSTAT,     Get file status
! * 'FTELL':         FTELL,     Current stream position
! * 'GAMMA':         GAMMA,     Gamma function
! * 'GERROR':        GERROR,    Get last system error message
! * 'GETARG':        GETARG,    Get command line arguments
! * 'GET_COMMAND':   GET_COMMAND, Get the entire command line
! * 'GET_COMMAND_ARGUMENT': GET_COMMAND_ARGUMENT, Get command line arguments
! * 'GETCWD':        GETCWD,    Get current working directory
! * 'GETENV':        GETENV,    Get an environmental variable
! * 'GET_ENVIRONMENT_VARIABLE': GET_ENVIRONMENT_VARIABLE, Get an environmental variable
! * 'GETGID':        GETGID,    Group ID function
! * 'GETLOG':        GETLOG,    Get login name
! * 'GETPID':        GETPID,    Process ID function
! * 'GETUID':        GETUID,    User ID function
! * 'GMTIME':        GMTIME,    Convert time to GMT info
! * 'HOSTNM':        HOSTNM,    Get system host name
! * 'HUGE':          HUGE,      Largest number of a kind
! * 'HYPOT':         HYPOT,     Euclidean distance function
! * 'IACHAR':        IACHAR,    Code in ASCII collating sequence
! * 'IALL':          IALL,      Bitwise AND of array elements
! * 'IAND':          IAND,      Bitwise logical and
! * 'IANY':          IANY,      Bitwise OR of array elements
! * 'IARGC':         IARGC,     Get the number of command line arguments
! * 'IBCLR':         IBCLR,     Clear bit
! * 'IBITS':         IBITS,     Bit extraction
! * 'IBSET':         IBSET,     Set bit
! * 'ICHAR':         ICHAR,     Character-to-integer conversion function
! * 'IDATE':         IDATE,     Current local time (day/month/year)
! * 'IEOR':          IEOR,      Bitwise logical exclusive or
! * 'IERRNO':        IERRNO,    Function to get the last system error number
! * 'IMAGE_INDEX':   IMAGE_INDEX, Cosubscript to image index conversion
! * 'INDEX':         INDEX intrinsic, Position of a substring within a string
! * 'INT':           INT,       Convert to integer type
! * 'INT2':          INT2,      Convert to 16-bit integer type
! * 'INT8':          INT8,      Convert to 64-bit integer type
! * 'IOR':           IOR,       Bitwise logical or
! * 'IPARITY':       IPARITY,   Bitwise XOR of array elements
! * 'IRAND':         IRAND,     Integer pseudo-random number
! * 'IS_IOSTAT_END':  IS_IOSTAT_END, Test for end-of-file value
! * 'IS_IOSTAT_EOR':  IS_IOSTAT_EOR, Test for end-of-record value
! * 'ISATTY':        ISATTY,    Whether a unit is a terminal device
! * 'ISHFT':         ISHFT,     Shift bits
! * 'ISHFTC':        ISHFTC,    Shift bits circularly
! * 'ISNAN':         ISNAN,     Tests for a NaN
! * 'ITIME':         ITIME,     Current local time (hour/minutes/seconds)
! * 'KILL':          KILL,      Send a signal to a process
! * 'KIND':          KIND,      Kind of an entity
! * 'LBOUND':        LBOUND,    Lower dimension bounds of an array
! * 'LCOBOUND':      LCOBOUND,  Lower codimension bounds of an array
! * 'LEADZ':         LEADZ,     Number of leading zero bits of an integer
! * 'LEN':           LEN,       Length of a character entity
! * 'LEN_TRIM':      LEN_TRIM,  Length of a character entity without trailing blank characters
! * 'LGE':           LGE,       Lexical greater than or equal
! * 'LGT':           LGT,       Lexical greater than
! * 'LINK':          LINK,      Create a hard link
! * 'LLE':           LLE,       Lexical less than or equal
! * 'LLT':           LLT,       Lexical less than
! * 'LNBLNK':        LNBLNK,    Index of the last non-blank character in a string
! * 'LOC':           LOC,       Returns the address of a variable
! * 'LOG':           LOG,       Logarithm function
! * 'LOG10':         LOG10,     Base 10 logarithm function
! * 'LOG_GAMMA':     LOG_GAMMA, Logarithm of the Gamma function
! * 'LOGICAL':       LOGICAL,   Convert to logical type
! * 'LONG':          LONG,      Convert to integer type
! * 'LSHIFT':        LSHIFT,    Left shift bits
! * 'LSTAT':         LSTAT,     Get file status
! * 'LTIME':         LTIME,     Convert time to local time info
! * 'MALLOC':        MALLOC,    Dynamic memory allocation function
! * 'MASKL':         MASKL,     Left justified mask
! * 'MASKR':         MASKR,     Right justified mask
! * 'MATMUL':        MATMUL,    matrix multiplication
! * 'MAX':           MAX,       Maximum value of an argument list
! * 'MAXEXPONENT':   MAXEXPONENT, Maximum exponent of a real kind
! * 'MAXLOC':        MAXLOC,    Location of the maximum value within an array
! * 'MAXVAL':        MAXVAL,    Maximum value of an array
! * 'MCLOCK':        MCLOCK,    Time function
! * 'MCLOCK8':       MCLOCK8,   Time function (64-bit)
! * 'MERGE':         MERGE,     Merge arrays
! * 'MERGE_BITS':    MERGE_BITS, Merge of bits under mask
! * 'MIN':           MIN,       Minimum value of an argument list
! * 'MINEXPONENT':   MINEXPONENT, Minimum exponent of a real kind
! * 'MINLOC':        MINLOC,    Location of the minimum value within an array
! * 'MINVAL':        MINVAL,    Minimum value of an array
! * 'MOD':           MOD,       Remainder function
! * 'MODULO':        MODULO,    Modulo function
! * 'MOVE_ALLOC':    MOVE_ALLOC, Move allocation from one object to another
! * 'MVBITS':        MVBITS,    Move bits from one integer to another
! * 'NEAREST':       NEAREST,   Nearest representable number
! * 'NEW_LINE':      NEW_LINE,  New line character
! * 'NINT':          NINT,      Nearest whole number
! * 'NORM2':         NORM2,     Euclidean vector norm
! * 'NOT':           NOT,       Logical negation
! * 'NULL':          NULL,      Function that returns an disassociated pointer
! * 'NUM_IMAGES':    NUM_IMAGES, Number of images
! * 'OR':            OR,        Bitwise logical OR
! * 'PACK':          PACK,      Pack an array into an array of rank one
! * 'PARITY':        PARITY,    Reduction with exclusive OR
! * 'PERROR':        PERROR,    Print system error message
! * 'POPCNT':        POPCNT,    Number of bits set
! * 'POPPAR':        POPPAR,    Parity of the number of bits set
! * 'PRECISION':     PRECISION, Decimal precision of a real kind
! * 'PRESENT':       PRESENT,   Determine whether an optional dummy argument is specified
! * 'PRODUCT':       PRODUCT,   Product of array elements
! * 'RADIX':         RADIX,     Base of a data model
! * 'RAN':           RAN,       Real pseudo-random number
! * 'RAND':          RAND,      Real pseudo-random number
! * 'RANDOM_NUMBER': RANDOM_NUMBER, Pseudo-random number
! * 'RANDOM_SEED':   RANDOM_SEED, Initialize a pseudo-random number sequence
! * 'RANGE':         RANGE,     Decimal exponent range
! * 'RANK' :         RANK,      Rank of a data object
! * 'REAL':          REAL,      Convert to real type
! * 'RENAME':        RENAME,    Rename a file
! * 'REPEAT':        REPEAT,    Repeated string concatenation
! * 'RESHAPE':       RESHAPE,   Function to reshape an array
! * 'RRSPACING':     RRSPACING, Reciprocal of the relative spacing
! * 'RSHIFT':        RSHIFT,    Right shift bits
! * 'SAME_TYPE_AS':  SAME_TYPE_AS,  Query dynamic types for equality
! * 'SCALE':         SCALE,     Scale a real value
! * 'SCAN':          SCAN,      Scan a string for the presence of a set of characters
! * 'SECNDS':        SECNDS,    Time function
! * 'SECOND':        SECOND,    CPU time function
! * 'SELECTED_CHAR_KIND': SELECTED_CHAR_KIND,  Choose character kind
! * 'SELECTED_INT_KIND': SELECTED_INT_KIND,  Choose integer kind
! * 'SELECTED_REAL_KIND': SELECTED_REAL_KIND,  Choose real kind
! * 'SET_EXPONENT':  SET_EXPONENT, Set the exponent of the model
! * 'SHAPE':         SHAPE,     Determine the shape of an array
! * 'SHIFTA':        SHIFTA,    Right shift with fill
! * 'SHIFTL':        SHIFTL,    Left shift
! * 'SHIFTR':        SHIFTR,    Right shift
! * 'SIGN':          SIGN,      Sign copying function
! * 'SIGNAL':        SIGNAL,    Signal handling subroutine (or function)
! * 'SIN':           SIN,       Sine function
! * 'SINH':          SINH,      Hyperbolic sine function
! * 'SIZE':          SIZE,      Function to determine the size of an array
! * 'SIZEOF':        SIZEOF,    Determine the size in bytes of an expression
! * 'SLEEP':         SLEEP,     Sleep for the specified number of seconds
! * 'SPACING':       SPACING,   Smallest distance between two numbers of a given type
! * 'SPREAD':        SPREAD,    Add a dimension to an array
! * 'SQRT':          SQRT,      Square-root function
! * 'SRAND':         SRAND,     Reinitialize the random number generator
! * 'STAT':          STAT,      Get file status
! * 'STORAGE_SIZE':  STORAGE_SIZE, Storage size in bits
! * 'SUM':           SUM,       Sum of array elements
! * 'SYMLNK':        SYMLNK,    Create a symbolic link
! * 'SYSTEM':        SYSTEM,    Execute a shell command
! * 'SYSTEM_CLOCK':  SYSTEM_CLOCK, Time function
! * 'TAN':           TAN,       Tangent function
! * 'TANH':          TANH,      Hyperbolic tangent function
! * 'THIS_IMAGE':    THIS_IMAGE, Cosubscript index of this image
! * 'TIME':          TIME,      Time function
! * 'TIME8':         TIME8,     Time function (64-bit)
! * 'TINY':          TINY,      Smallest positive number of a real kind
! * 'TRAILZ':        TRAILZ,    Number of trailing zero bits of an integer
! * 'TRANSFER':      TRANSFER,  Transfer bit patterns
! * 'TRANSPOSE':     TRANSPOSE, Transpose an array of rank two
! * 'TRIM':          TRIM,      Remove trailing blank characters of a string
! * 'TTYNAM':        TTYNAM,    Get the name of a terminal device.
! * 'UBOUND':        UBOUND,    Upper dimension bounds of an array
! * 'UCOBOUND':      UCOBOUND,  Upper codimension bounds of an array
! * 'UMASK':         UMASK,     Set the file creation mask
! * 'UNLINK':        UNLINK,    Remove a file from the file system
! * 'UNPACK':        UNPACK,    Unpack an array of rank one into an array
! * 'VERIFY':        VERIFY,    Scan a string for the absence of a set of characters
! * 'XOR':           XOR,       Bitwise logical exclusive or
  
  
  File: gfortran.info,  Node: Introduction to Intrinsics,  Next: ABORT,  Up: Intrinsic Procedures
*************** either the Fortran 95 standard, the Fort
*** 5844,5887 ****
  2008 standard is unintentional, and the standard(s) should be considered
  authoritative.
  
!    The enumeration of the `KIND' type parameter is processor defined in
  the Fortran 95 standard.  GNU Fortran defines the default integer type
! and default real type by `INTEGER(KIND=4)' and `REAL(KIND=4)',
  respectively.  The standard mandates that both data types shall have
  another kind, which have more precision.  On typical target
! architectures supported by `gfortran', this kind type parameter is
! `KIND=8'.  Hence, `REAL(KIND=8)' and `DOUBLE PRECISION' are equivalent.
  In the description of generic intrinsic procedures, the kind type
! parameter will be specified by `KIND=*', and in the description of
  specific names for an intrinsic procedure the kind type parameter will
! be explicitly given (e.g., `REAL(KIND=4)' or `REAL(KIND=8)').  Finally,
! for brevity the optional `KIND=' syntax will be omitted.
  
     Many of the intrinsic procedures take one or more optional arguments.
  This document follows the convention used in the Fortran 95 standard,
  and denotes such arguments by square brackets.
  
!    GNU Fortran offers the `-std=f95' and `-std=gnu' options, which can
! be used to restrict the set of intrinsic procedures to a given
! standard.  By default, `gfortran' sets the `-std=gnu' option, and so
! all intrinsic procedures described here are accepted.  There is one
! caveat.  For a select group of intrinsic procedures, `g77' implemented
! both a function and a subroutine.  Both classes have been implemented
! in `gfortran' for backwards compatibility with `g77'.  It is noted here
! that these functions and subroutines cannot be intermixed in a given
! subprogram.  In the descriptions that follow, the applicable standard
! for each intrinsic procedure is noted.
  
  
  File: gfortran.info,  Node: ABORT,  Next: ABS,  Prev: Introduction to Intrinsics,  Up: Intrinsic Procedures
  
! 9.2 `ABORT' -- Abort the program
  ================================
  
  _Description_:
!      `ABORT' causes immediate termination of the program.  On operating
!      systems that support a core dump, `ABORT' will produce a core dump.
!      It will also print a backtrace, unless `-fno-backtrace' is given.
  
  _Standard_:
       GNU extension
--- 5795,5838 ----
  2008 standard is unintentional, and the standard(s) should be considered
  authoritative.
  
!    The enumeration of the 'KIND' type parameter is processor defined in
  the Fortran 95 standard.  GNU Fortran defines the default integer type
! and default real type by 'INTEGER(KIND=4)' and 'REAL(KIND=4)',
  respectively.  The standard mandates that both data types shall have
  another kind, which have more precision.  On typical target
! architectures supported by 'gfortran', this kind type parameter is
! 'KIND=8'.  Hence, 'REAL(KIND=8)' and 'DOUBLE PRECISION' are equivalent.
  In the description of generic intrinsic procedures, the kind type
! parameter will be specified by 'KIND=*', and in the description of
  specific names for an intrinsic procedure the kind type parameter will
! be explicitly given (e.g., 'REAL(KIND=4)' or 'REAL(KIND=8)').  Finally,
! for brevity the optional 'KIND=' syntax will be omitted.
  
     Many of the intrinsic procedures take one or more optional arguments.
  This document follows the convention used in the Fortran 95 standard,
  and denotes such arguments by square brackets.
  
!    GNU Fortran offers the '-std=f95' and '-std=gnu' options, which can
! be used to restrict the set of intrinsic procedures to a given standard.
! By default, 'gfortran' sets the '-std=gnu' option, and so all intrinsic
! procedures described here are accepted.  There is one caveat.  For a
! select group of intrinsic procedures, 'g77' implemented both a function
! and a subroutine.  Both classes have been implemented in 'gfortran' for
! backwards compatibility with 'g77'.  It is noted here that these
! functions and subroutines cannot be intermixed in a given subprogram.
! In the descriptions that follow, the applicable standard for each
! intrinsic procedure is noted.
  
  
  File: gfortran.info,  Node: ABORT,  Next: ABS,  Prev: Introduction to Intrinsics,  Up: Intrinsic Procedures
  
! 9.2 'ABORT' -- Abort the program
  ================================
  
  _Description_:
!      'ABORT' causes immediate termination of the program.  On operating
!      systems that support a core dump, 'ABORT' will produce a core dump.
!      It will also print a backtrace, unless '-fno-backtrace' is given.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 5890,5896 ****
       Subroutine
  
  _Syntax_:
!      `CALL ABORT'
  
  _Return value_:
       Does not return.
--- 5841,5847 ----
       Subroutine
  
  _Syntax_:
!      'CALL ABORT'
  
  _Return value_:
       Does not return.
*************** _Example_:
*** 5904,5918 ****
  _See also_:
       *note EXIT::, *note KILL::, *note BACKTRACE::
  
- 
  
  File: gfortran.info,  Node: ABS,  Next: ACCESS,  Prev: ABORT,  Up: Intrinsic Procedures
  
! 9.3 `ABS' -- Absolute value
  ===========================
  
  _Description_:
!      `ABS(A)' computes the absolute value of `A'.
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
--- 5855,5868 ----
  _See also_:
       *note EXIT::, *note KILL::, *note BACKTRACE::
  
  
  File: gfortran.info,  Node: ABS,  Next: ACCESS,  Prev: ABORT,  Up: Intrinsic Procedures
  
! 9.3 'ABS' -- Absolute value
  ===========================
  
  _Description_:
!      'ABS(A)' computes the absolute value of 'A'.
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
*************** _Class_:
*** 5921,5935 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ABS(A)'
  
  _Arguments_:
!      A          The type of the argument shall be an `INTEGER',
!                 `REAL', or `COMPLEX'.
  
  _Return value_:
       The return value is of the same type and kind as the argument
!      except the return value is `REAL' for a `COMPLEX' argument.
  
  _Example_:
            program test_abs
--- 5871,5885 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ABS(A)'
  
  _Arguments_:
!      A           The type of the argument shall be an 'INTEGER',
!                  'REAL', or 'COMPLEX'.
  
  _Return value_:
       The return value is of the same type and kind as the argument
!      except the return value is 'REAL' for a 'COMPLEX' argument.
  
  _Example_:
            program test_abs
*************** _Example_:
*** 5942,5971 ****
            end program test_abs
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ABS(A)'      `REAL(4) A'   `REAL(4)'     Fortran 77 and
!                                                later
!      `CABS(A)'     `COMPLEX(4)   `REAL(4)'     Fortran 77 and
!                    A'                          later
!      `DABS(A)'     `REAL(8) A'   `REAL(8)'     Fortran 77 and
!                                                later
!      `IABS(A)'     `INTEGER(4)   `INTEGER(4)'  Fortran 77 and
!                    A'                          later
!      `ZABS(A)'     `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    A'                          
!      `CDABS(A)'    `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    A'                          
  
  
  File: gfortran.info,  Node: ACCESS,  Next: ACHAR,  Prev: ABS,  Up: Intrinsic Procedures
  
! 9.4 `ACCESS' -- Checks file access modes
  ========================================
  
  _Description_:
!      `ACCESS(NAME, MODE)' checks whether the file NAME exists, is
!      readable, writable or executable. Except for the executable check,
!      `ACCESS' can be replaced by Fortran 95's `INQUIRE'.
  
  _Standard_:
       GNU extension
--- 5892,5921 ----
            end program test_abs
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ABS(A)'       'REAL(4) A'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'CABS(A)'      'COMPLEX(4)    'REAL(4)'      Fortran 77 and
!                     A'                            later
!      'DABS(A)'      'REAL(8) A'    'REAL(8)'      Fortran 77 and
!                                                   later
!      'IABS(A)'      'INTEGER(4)    'INTEGER(4)'   Fortran 77 and
!                     A'                            later
!      'ZABS(A)'      'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     A'
!      'CDABS(A)'     'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     A'
  
  
  File: gfortran.info,  Node: ACCESS,  Next: ACHAR,  Prev: ABS,  Up: Intrinsic Procedures
  
! 9.4 'ACCESS' -- Checks file access modes
  ========================================
  
  _Description_:
!      'ACCESS(NAME, MODE)' checks whether the file NAME exists, is
!      readable, writable or executable.  Except for the executable check,
!      'ACCESS' can be replaced by Fortran 95's 'INQUIRE'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 5974,5996 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = ACCESS(NAME, MODE)'
  
  _Arguments_:
!      NAME       Scalar `CHARACTER' of default kind with the
!                 file name. Tailing blank are ignored unless
!                 the character `achar(0)' is present, then all
!                 characters up to and excluding `achar(0)' are
!                 used as file name.
!      MODE       Scalar `CHARACTER' of default kind with the
!                 file access mode, may be any concatenation of
!                 `"r"' (readable), `"w"' (writable) and `"x"'
!                 (executable), or `" "' to check for existence.
  
  _Return value_:
!      Returns a scalar `INTEGER', which is `0' if the file is accessible
       in the given mode; otherwise or if an invalid argument has been
!      given for `MODE' the value `1' is returned.
  
  _Example_:
            program access_test
--- 5924,5946 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = ACCESS(NAME, MODE)'
  
  _Arguments_:
!      NAME        Scalar 'CHARACTER' of default kind with the file
!                  name.  Tailing blank are ignored unless the
!                  character 'achar(0)' is present, then all
!                  characters up to and excluding 'achar(0)' are
!                  used as file name.
!      MODE        Scalar 'CHARACTER' of default kind with the file
!                  access mode, may be any concatenation of '"r"'
!                  (readable), '"w"' (writable) and '"x"'
!                  (executable), or '" "' to check for existence.
  
  _Return value_:
!      Returns a scalar 'INTEGER', which is '0' if the file is accessible
       in the given mode; otherwise or if an invalid argument has been
!      given for 'MODE' the value '1' is returned.
  
  _Example_:
            program access_test
*************** _Example_:
*** 6004,6022 ****
              if(access(file2,'rwx') == 0) &
                print *, trim(file2),' is readable, writable and executable'
            end program access_test
- 
  _Specific names_:
- 
  _See also_:
  
  
  File: gfortran.info,  Node: ACHAR,  Next: ACOS,  Prev: ACCESS,  Up: Intrinsic Procedures
  
! 9.5 `ACHAR' -- Character in ASCII collating sequence
  ====================================================
  
  _Description_:
!      `ACHAR(I)' returns the character located at position `I' in the
       ASCII collating sequence.
  
  _Standard_:
--- 5954,5970 ----
              if(access(file2,'rwx') == 0) &
                print *, trim(file2),' is readable, writable and executable'
            end program access_test
  _Specific names_:
  _See also_:
  
  
  File: gfortran.info,  Node: ACHAR,  Next: ACOS,  Prev: ACCESS,  Up: Intrinsic Procedures
  
! 9.5 'ACHAR' -- Character in ASCII collating sequence
  ====================================================
  
  _Description_:
!      'ACHAR(I)' returns the character located at position 'I' in the
       ASCII collating sequence.
  
  _Standard_:
*************** _Class_:
*** 6026,6041 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ACHAR(I [, KIND])'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `CHARACTER' with a length of one.  If
       the KIND argument is present, the return value is of the specified
       kind and of the default kind otherwise.
  
--- 5974,5989 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ACHAR(I [, KIND])'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'CHARACTER' with a length of one.  If
       the KIND argument is present, the return value is of the specified
       kind and of the default kind otherwise.
  
*************** _Note_:
*** 6052,6066 ****
  _See also_:
       *note CHAR::, *note IACHAR::, *note ICHAR::
  
- 
  
  File: gfortran.info,  Node: ACOS,  Next: ACOSH,  Prev: ACHAR,  Up: Intrinsic Procedures
  
! 9.6 `ACOS' -- Arccosine function
  ================================
  
  _Description_:
!      `ACOS(X)' computes the arccosine of X (inverse of `COS(X)').
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
--- 6000,6013 ----
  _See also_:
       *note CHAR::, *note IACHAR::, *note ICHAR::
  
  
  File: gfortran.info,  Node: ACOS,  Next: ACOSH,  Prev: ACHAR,  Up: Intrinsic Procedures
  
! 9.6 'ACOS' -- Arccosine function
  ================================
  
  _Description_:
!      'ACOS(X)' computes the arccosine of X (inverse of 'COS(X)').
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
*************** _Class_:
*** 6069,6080 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ACOS(X)'
  
  _Arguments_:
!      X          The type shall either be `REAL' with a
!                 magnitude that is less than or equal to one -
!                 or the type shall be `COMPLEX'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The real part
--- 6016,6027 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ACOS(X)'
  
  _Arguments_:
!      X           The type shall either be 'REAL' with a magnitude
!                  that is less than or equal to one - or the type
!                  shall be 'COMPLEX'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The real part
*************** _Example_:
*** 6088,6111 ****
            end program test_acos
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ACOS(X)'     `REAL(4) X'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DACOS(X)'    `REAL(8) X'   `REAL(8)'     Fortran 77 and
!                                                later
  
  _See also_:
       Inverse function: *note COS::
  
- 
  
  File: gfortran.info,  Node: ACOSH,  Next: ADJUSTL,  Prev: ACOS,  Up: Intrinsic Procedures
  
! 9.7 `ACOSH' -- Inverse hyperbolic cosine function
  =================================================
  
  _Description_:
!      `ACOSH(X)' computes the inverse hyperbolic cosine of X.
  
  _Standard_:
       Fortran 2008 and later
--- 6035,6057 ----
            end program test_acos
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ACOS(X)'      'REAL(4) X'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DACOS(X)'     'REAL(8) X'    'REAL(8)'      Fortran 77 and
!                                                   later
  
  _See also_:
       Inverse function: *note COS::
  
  
  File: gfortran.info,  Node: ACOSH,  Next: ADJUSTL,  Prev: ACOS,  Up: Intrinsic Procedures
  
! 9.7 'ACOSH' -- Inverse hyperbolic cosine function
  =================================================
  
  _Description_:
!      'ACOSH(X)' computes the inverse hyperbolic cosine of X.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 6114,6127 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ACOSH(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value has the same type and kind as X. If X is complex,
!      the imaginary part of the result is in radians and lies between  0
       \leq \Im \acosh(x) \leq \pi.
  
  _Example_:
--- 6060,6073 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ACOSH(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value has the same type and kind as X.  If X is complex,
!      the imaginary part of the result is in radians and lies between 0
       \leq \Im \acosh(x) \leq \pi.
  
  _Example_:
*************** _Example_:
*** 6131,6138 ****
            END PROGRAM
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DACOSH(X)'   `REAL(8) X'   `REAL(8)'     GNU extension
  
  _See also_:
       Inverse function: *note COSH::
--- 6077,6084 ----
            END PROGRAM
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DACOSH(X)'    'REAL(8) X'    'REAL(8)'      GNU extension
  
  _See also_:
       Inverse function: *note COSH::
*************** _See also_:
*** 6140,6150 ****
  
  File: gfortran.info,  Node: ADJUSTL,  Next: ADJUSTR,  Prev: ACOSH,  Up: Intrinsic Procedures
  
! 9.8 `ADJUSTL' -- Left adjust a string
  =====================================
  
  _Description_:
!      `ADJUSTL(STRING)' will left adjust a string by removing leading
       spaces.  Spaces are inserted at the end of the string as needed.
  
  _Standard_:
--- 6086,6096 ----
  
  File: gfortran.info,  Node: ADJUSTL,  Next: ADJUSTR,  Prev: ACOSH,  Up: Intrinsic Procedures
  
! 9.8 'ADJUSTL' -- Left adjust a string
  =====================================
  
  _Description_:
!      'ADJUSTL(STRING)' will left adjust a string by removing leading
       spaces.  Spaces are inserted at the end of the string as needed.
  
  _Standard_:
*************** _Class_:
*** 6154,6166 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ADJUSTL(STRING)'
  
  _Arguments_:
!      STRING     The type shall be `CHARACTER'.
  
  _Return value_:
!      The return value is of type `CHARACTER' and of the same kind as
       STRING where leading spaces are removed and the same number of
       spaces are inserted on the end of STRING.
  
--- 6100,6112 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ADJUSTL(STRING)'
  
  _Arguments_:
!      STRING      The type shall be 'CHARACTER'.
  
  _Return value_:
!      The return value is of type 'CHARACTER' and of the same kind as
       STRING where leading spaces are removed and the same number of
       spaces are inserted on the end of STRING.
  
*************** _See also_:
*** 6177,6187 ****
  
  File: gfortran.info,  Node: ADJUSTR,  Next: AIMAG,  Prev: ADJUSTL,  Up: Intrinsic Procedures
  
! 9.9 `ADJUSTR' -- Right adjust a string
  ======================================
  
  _Description_:
!      `ADJUSTR(STRING)' will right adjust a string by removing trailing
       spaces.  Spaces are inserted at the start of the string as needed.
  
  _Standard_:
--- 6123,6133 ----
  
  File: gfortran.info,  Node: ADJUSTR,  Next: AIMAG,  Prev: ADJUSTL,  Up: Intrinsic Procedures
  
! 9.9 'ADJUSTR' -- Right adjust a string
  ======================================
  
  _Description_:
!      'ADJUSTR(STRING)' will right adjust a string by removing trailing
       spaces.  Spaces are inserted at the start of the string as needed.
  
  _Standard_:
*************** _Class_:
*** 6191,6203 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ADJUSTR(STRING)'
  
  _Arguments_:
!      STR        The type shall be `CHARACTER'.
  
  _Return value_:
!      The return value is of type `CHARACTER' and of the same kind as
       STRING where trailing spaces are removed and the same number of
       spaces are inserted at the start of STRING.
  
--- 6137,6149 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ADJUSTR(STRING)'
  
  _Arguments_:
!      STR         The type shall be 'CHARACTER'.
  
  _Return value_:
!      The return value is of type 'CHARACTER' and of the same kind as
       STRING where trailing spaces are removed and the same number of
       spaces are inserted at the start of STRING.
  
*************** _See also_:
*** 6214,6226 ****
  
  File: gfortran.info,  Node: AIMAG,  Next: AINT,  Prev: ADJUSTR,  Up: Intrinsic Procedures
  
! 9.10 `AIMAG' -- Imaginary part of complex number
  ================================================
  
  _Description_:
!      `AIMAG(Z)' yields the imaginary part of complex argument `Z'.  The
!      `IMAG(Z)' and `IMAGPART(Z)' intrinsic functions are provided for
!      compatibility with `g77', and their use in new code is strongly
       discouraged.
  
  _Standard_:
--- 6160,6172 ----
  
  File: gfortran.info,  Node: AIMAG,  Next: AINT,  Prev: ADJUSTR,  Up: Intrinsic Procedures
  
! 9.10 'AIMAG' -- Imaginary part of complex number
  ================================================
  
  _Description_:
!      'AIMAG(Z)' yields the imaginary part of complex argument 'Z'.  The
!      'IMAG(Z)' and 'IMAGPART(Z)' intrinsic functions are provided for
!      compatibility with 'g77', and their use in new code is strongly
       discouraged.
  
  _Standard_:
*************** _Class_:
*** 6230,6242 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = AIMAG(Z)'
  
  _Arguments_:
!      Z          The type of the argument shall be `COMPLEX'.
  
  _Return value_:
!      The return value is of type `REAL' with the kind type parameter of
       the argument.
  
  _Example_:
--- 6176,6188 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = AIMAG(Z)'
  
  _Arguments_:
!      Z           The type of the argument shall be 'COMPLEX'.
  
  _Return value_:
!      The return value is of type 'REAL' with the kind type parameter of
       the argument.
  
  _Example_:
*************** _Example_:
*** 6249,6269 ****
            end program test_aimag
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `AIMAG(Z)'    `COMPLEX Z'   `REAL'        GNU extension
!      `DIMAG(Z)'    `COMPLEX(8)   `REAL(8)'     GNU extension
!                    Z'                          
!      `IMAG(Z)'     `COMPLEX Z'   `REAL'        GNU extension
!      `IMAGPART(Z)' `COMPLEX Z'   `REAL'        GNU extension
  
  
  File: gfortran.info,  Node: AINT,  Next: ALARM,  Prev: AIMAG,  Up: Intrinsic Procedures
  
! 9.11 `AINT' -- Truncate to a whole number
  =========================================
  
  _Description_:
!      `AINT(A [, KIND])' truncates its argument to a whole number.
  
  _Standard_:
       Fortran 77 and later
--- 6195,6215 ----
            end program test_aimag
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'AIMAG(Z)'     'COMPLEX Z'    'REAL'         GNU extension
!      'DIMAG(Z)'     'COMPLEX(8)    'REAL(8)'      GNU extension
!                     Z'
!      'IMAG(Z)'      'COMPLEX Z'    'REAL'         GNU extension
!      'IMAGPART(Z)'  'COMPLEX Z'    'REAL'         GNU extension
  
  
  File: gfortran.info,  Node: AINT,  Next: ALARM,  Prev: AIMAG,  Up: Intrinsic Procedures
  
! 9.11 'AINT' -- Truncate to a whole number
  =========================================
  
  _Description_:
!      'AINT(A [, KIND])' truncates its argument to a whole number.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 6272,6290 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = AINT(A [, KIND])'
  
  _Arguments_:
!      A          The type of the argument shall be `REAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `REAL' with the kind type parameter of
       the argument if the optional KIND is absent; otherwise, the kind
       type parameter will be given by KIND.  If the magnitude of X is
!      less than one, `AINT(X)' returns zero.  If the magnitude is equal
       to or greater than one then it returns the largest whole number
       that does not exceed its magnitude.  The sign is the same as the
       sign of X.
--- 6218,6236 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = AINT(A [, KIND])'
  
  _Arguments_:
!      A           The type of the argument shall be 'REAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'REAL' with the kind type parameter of
       the argument if the optional KIND is absent; otherwise, the kind
       type parameter will be given by KIND.  If the magnitude of X is
!      less than one, 'AINT(X)' returns zero.  If the magnitude is equal
       to or greater than one then it returns the largest whole number
       that does not exceed its magnitude.  The sign is the same as the
       sign of X.
*************** _Example_:
*** 6300,6324 ****
            end program test_aint
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `AINT(A)'     `REAL(4) A'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DINT(A)'     `REAL(8) A'   `REAL(8)'     Fortran 77 and
!                                                later
  
  
  File: gfortran.info,  Node: ALARM,  Next: ALL,  Prev: AINT,  Up: Intrinsic Procedures
  
! 9.12 `ALARM' -- Execute a routine after a given delay
  =====================================================
  
  _Description_:
!      `ALARM(SECONDS, HANDLER [, STATUS])' causes external subroutine
!      HANDLER to be executed after a delay of SECONDS by using
!      `alarm(2)' to set up a signal and `signal(2)' to catch it. If
!      STATUS is supplied, it will be returned with the number of seconds
!      remaining until any previously scheduled alarm was due to be
!      delivered, or zero if there was no previously scheduled alarm.
  
  _Standard_:
       GNU extension
--- 6246,6270 ----
            end program test_aint
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'AINT(A)'      'REAL(4) A'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DINT(A)'      'REAL(8) A'    'REAL(8)'      Fortran 77 and
!                                                   later
  
  
  File: gfortran.info,  Node: ALARM,  Next: ALL,  Prev: AINT,  Up: Intrinsic Procedures
  
! 9.12 'ALARM' -- Execute a routine after a given delay
  =====================================================
  
  _Description_:
!      'ALARM(SECONDS, HANDLER [, STATUS])' causes external subroutine
!      HANDLER to be executed after a delay of SECONDS by using 'alarm(2)'
!      to set up a signal and 'signal(2)' to catch it.  If STATUS is
!      supplied, it will be returned with the number of seconds remaining
!      until any previously scheduled alarm was due to be delivered, or
!      zero if there was no previously scheduled alarm.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 6327,6346 ****
       Subroutine
  
  _Syntax_:
!      `CALL ALARM(SECONDS, HANDLER [, STATUS])'
  
  _Arguments_:
!      SECONDS    The type of the argument shall be a scalar
!                 `INTEGER'. It is `INTENT(IN)'.
!      HANDLER    Signal handler (`INTEGER FUNCTION' or
!                 `SUBROUTINE') or dummy/global `INTEGER'
!                 scalar. The scalar values may be either
!                 `SIG_IGN=1' to ignore the alarm generated or
!                 `SIG_DFL=0' to set the default action. It is
!                 `INTENT(IN)'.
!      STATUS     (Optional) STATUS shall be a scalar variable
!                 of the default `INTEGER' kind. It is
!                 `INTENT(OUT)'.
  
  _Example_:
            program test_alarm
--- 6273,6291 ----
       Subroutine
  
  _Syntax_:
!      'CALL ALARM(SECONDS, HANDLER [, STATUS])'
  
  _Arguments_:
!      SECONDS     The type of the argument shall be a scalar
!                  'INTEGER'.  It is 'INTENT(IN)'.
!      HANDLER     Signal handler ('INTEGER FUNCTION' or
!                  'SUBROUTINE') or dummy/global 'INTEGER' scalar.
!                  The scalar values may be either 'SIG_IGN=1' to
!                  ignore the alarm generated or 'SIG_DFL=0' to set
!                  the default action.  It is 'INTENT(IN)'.
!      STATUS      (Optional) STATUS shall be a scalar variable of
!                  the default 'INTEGER' kind.  It is
!                  'INTENT(OUT)'.
  
  _Example_:
            program test_alarm
*************** _Example_:
*** 6356,6366 ****
  
  File: gfortran.info,  Node: ALL,  Next: ALLOCATED,  Prev: ALARM,  Up: Intrinsic Procedures
  
! 9.13 `ALL' -- All values in MASK along DIM are true
  ===================================================
  
  _Description_:
!      `ALL(MASK [, DIM])' determines if all the values are true in MASK
       in the array along dimension DIM.
  
  _Standard_:
--- 6301,6311 ----
  
  File: gfortran.info,  Node: ALL,  Next: ALLOCATED,  Prev: ALARM,  Up: Intrinsic Procedures
  
! 9.13 'ALL' -- All values in MASK along DIM are true
  ===================================================
  
  _Description_:
!      'ALL(MASK [, DIM])' determines if all the values are true in MASK
       in the array along dimension DIM.
  
  _Standard_:
*************** _Class_:
*** 6370,6399 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = ALL(MASK [, DIM])'
  
  _Arguments_:
!      MASK       The type of the argument shall be `LOGICAL' and
!                 it shall not be scalar.
!      DIM        (Optional) DIM shall be a scalar integer with
!                 a value that lies between one and the rank of
!                 MASK.
  
  _Return value_:
!      `ALL(MASK)' returns a scalar value of type `LOGICAL' where the
!      kind type parameter is the same as the kind type parameter of
!      MASK.  If DIM is present, then `ALL(MASK, DIM)' returns an array
!      with the rank of MASK minus 1.  The shape is determined from the
!      shape of MASK where the DIM dimension is elided.
! 
!     (A)
!           `ALL(MASK)' is true if all elements of MASK are true.  It
!           also is true if MASK has zero size; otherwise, it is false.
  
!     (B)
!           If the rank of MASK is one, then `ALL(MASK,DIM)' is equivalent
!           to `ALL(MASK)'.  If the rank is greater than one, then
!           `ALL(MASK,DIM)' is determined by applying `ALL' to the array
            sections.
  
  _Example_:
--- 6315,6343 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = ALL(MASK [, DIM])'
  
  _Arguments_:
!      MASK        The type of the argument shall be 'LOGICAL' and
!                  it shall not be scalar.
!      DIM         (Optional) DIM shall be a scalar integer with a
!                  value that lies between one and the rank of
!                  MASK.
  
  _Return value_:
!      'ALL(MASK)' returns a scalar value of type 'LOGICAL' where the kind
!      type parameter is the same as the kind type parameter of MASK.  If
!      DIM is present, then 'ALL(MASK, DIM)' returns an array with the
!      rank of MASK minus 1.  The shape is determined from the shape of
!      MASK where the DIM dimension is elided.
  
!      (A)
!           'ALL(MASK)' is true if all elements of MASK are true.  It also
!           is true if MASK has zero size; otherwise, it is false.
!      (B)
!           If the rank of MASK is one, then 'ALL(MASK,DIM)' is equivalent
!           to 'ALL(MASK)'.  If the rank is greater than one, then
!           'ALL(MASK,DIM)' is determined by applying 'ALL' to the array
            sections.
  
  _Example_:
*************** _Example_:
*** 6416,6447 ****
  
  File: gfortran.info,  Node: ALLOCATED,  Next: AND,  Prev: ALL,  Up: Intrinsic Procedures
  
! 9.14 `ALLOCATED' -- Status of an allocatable entity
  ===================================================
  
  _Description_:
!      `ALLOCATED(ARRAY)' and `ALLOCATED(SCALAR)' check the allocation
       status of ARRAY and SCALAR, respectively.
  
  _Standard_:
!      Fortran 95 and later.  Note, the `SCALAR=' keyword and allocatable
       scalar entities are available in Fortran 2003 and later.
  
  _Class_:
       Inquiry function
  
  _Syntax_:
!      `RESULT = ALLOCATED(ARRAY)'
!      `RESULT = ALLOCATED(SCALAR)'
  
  _Arguments_:
!      ARRAY      The argument shall be an `ALLOCATABLE' array.
!      SCALAR     The argument shall be an `ALLOCATABLE' scalar.
  
  _Return value_:
!      The return value is a scalar `LOGICAL' with the default logical
!      kind type parameter.  If the argument is allocated, then the
!      result is `.TRUE.'; otherwise, it returns `.FALSE.'
  
  _Example_:
            program test_allocated
--- 6360,6391 ----
  
  File: gfortran.info,  Node: ALLOCATED,  Next: AND,  Prev: ALL,  Up: Intrinsic Procedures
  
! 9.14 'ALLOCATED' -- Status of an allocatable entity
  ===================================================
  
  _Description_:
!      'ALLOCATED(ARRAY)' and 'ALLOCATED(SCALAR)' check the allocation
       status of ARRAY and SCALAR, respectively.
  
  _Standard_:
!      Fortran 95 and later.  Note, the 'SCALAR=' keyword and allocatable
       scalar entities are available in Fortran 2003 and later.
  
  _Class_:
       Inquiry function
  
  _Syntax_:
!      'RESULT = ALLOCATED(ARRAY)'
!      'RESULT = ALLOCATED(SCALAR)'
  
  _Arguments_:
!      ARRAY       The argument shall be an 'ALLOCATABLE' array.
!      SCALAR      The argument shall be an 'ALLOCATABLE' scalar.
  
  _Return value_:
!      The return value is a scalar 'LOGICAL' with the default logical
!      kind type parameter.  If the argument is allocated, then the result
!      is '.TRUE.'; otherwise, it returns '.FALSE.'
  
  _Example_:
            program test_allocated
*************** _Example_:
*** 6453,6463 ****
  
  File: gfortran.info,  Node: AND,  Next: ANINT,  Prev: ALLOCATED,  Up: Intrinsic Procedures
  
! 9.15 `AND' -- Bitwise logical AND
  =================================
  
  _Description_:
!      Bitwise logical `AND'.
  
       This intrinsic routine is provided for backwards compatibility with
       GNU Fortran 77.  For integer arguments, programmers should consider
--- 6397,6407 ----
  
  File: gfortran.info,  Node: AND,  Next: ANINT,  Prev: ALLOCATED,  Up: Intrinsic Procedures
  
! 9.15 'AND' -- Bitwise logical AND
  =================================
  
  _Description_:
!      Bitwise logical 'AND'.
  
       This intrinsic routine is provided for backwards compatibility with
       GNU Fortran 77.  For integer arguments, programmers should consider
*************** _Class_:
*** 6471,6488 ****
       Function
  
  _Syntax_:
!      `RESULT = AND(I, J)'
  
  _Arguments_:
!      I          The type shall be either a scalar `INTEGER'
!                 type or a scalar `LOGICAL' type.
!      J          The type shall be the same as the type of I.
  
  _Return value_:
!      The return type is either a scalar `INTEGER' or a scalar
!      `LOGICAL'.  If the kind type parameters differ, then the smaller
!      kind type is implicitly converted to larger kind, and the return
!      has the larger kind.
  
  _Example_:
            PROGRAM test_and
--- 6415,6432 ----
       Function
  
  _Syntax_:
!      'RESULT = AND(I, J)'
  
  _Arguments_:
!      I           The type shall be either a scalar 'INTEGER' type
!                  or a scalar 'LOGICAL' type.
!      J           The type shall be the same as the type of I.
  
  _Return value_:
!      The return type is either a scalar 'INTEGER' or a scalar 'LOGICAL'.
!      If the kind type parameters differ, then the smaller kind type is
!      implicitly converted to larger kind, and the return has the larger
!      kind.
  
  _Example_:
            PROGRAM test_and
*************** _See also_:
*** 6500,6510 ****
  
  File: gfortran.info,  Node: ANINT,  Next: ANY,  Prev: AND,  Up: Intrinsic Procedures
  
! 9.16 `ANINT' -- Nearest whole number
  ====================================
  
  _Description_:
!      `ANINT(A [, KIND])' rounds its argument to the nearest whole
       number.
  
  _Standard_:
--- 6444,6454 ----
  
  File: gfortran.info,  Node: ANINT,  Next: ANY,  Prev: AND,  Up: Intrinsic Procedures
  
! 9.16 'ANINT' -- Nearest whole number
  ====================================
  
  _Description_:
!      'ANINT(A [, KIND])' rounds its argument to the nearest whole
       number.
  
  _Standard_:
*************** _Class_:
*** 6514,6533 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ANINT(A [, KIND])'
  
  _Arguments_:
!      A          The type of the argument shall be `REAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
       The return value is of type real with the kind type parameter of
       the argument if the optional KIND is absent; otherwise, the kind
       type parameter will be given by KIND.  If A is greater than zero,
!      `ANINT(A)' returns `AINT(X+0.5)'.  If A is less than or equal to
!      zero then it returns `AINT(X-0.5)'.
  
  _Example_:
            program test_anint
--- 6458,6477 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ANINT(A [, KIND])'
  
  _Arguments_:
!      A           The type of the argument shall be 'REAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
       The return value is of type real with the kind type parameter of
       the argument if the optional KIND is absent; otherwise, the kind
       type parameter will be given by KIND.  If A is greater than zero,
!      'ANINT(A)' returns 'AINT(X+0.5)'.  If A is less than or equal to
!      zero then it returns 'AINT(X-0.5)'.
  
  _Example_:
            program test_anint
*************** _Example_:
*** 6540,6560 ****
            end program test_anint
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `AINT(A)'     `REAL(4) A'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DNINT(A)'    `REAL(8) A'   `REAL(8)'     Fortran 77 and
!                                                later
  
  
  File: gfortran.info,  Node: ANY,  Next: ASIN,  Prev: ANINT,  Up: Intrinsic Procedures
  
! 9.17 `ANY' -- Any value in MASK along DIM is true
  =================================================
  
  _Description_:
!      `ANY(MASK [, DIM])' determines if any of the values in the logical
!      array MASK along dimension DIM are `.TRUE.'.
  
  _Standard_:
       Fortran 95 and later
--- 6484,6504 ----
            end program test_anint
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'AINT(A)'      'REAL(4) A'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DNINT(A)'     'REAL(8) A'    'REAL(8)'      Fortran 77 and
!                                                   later
  
  
  File: gfortran.info,  Node: ANY,  Next: ASIN,  Prev: ANINT,  Up: Intrinsic Procedures
  
! 9.17 'ANY' -- Any value in MASK along DIM is true
  =================================================
  
  _Description_:
!      'ANY(MASK [, DIM])' determines if any of the values in the logical
!      array MASK along dimension DIM are '.TRUE.'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 6563,6593 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = ANY(MASK [, DIM])'
  
  _Arguments_:
!      MASK       The type of the argument shall be `LOGICAL' and
!                 it shall not be scalar.
!      DIM        (Optional) DIM shall be a scalar integer with
!                 a value that lies between one and the rank of
!                 MASK.
  
  _Return value_:
!      `ANY(MASK)' returns a scalar value of type `LOGICAL' where the
!      kind type parameter is the same as the kind type parameter of
!      MASK.  If DIM is present, then `ANY(MASK, DIM)' returns an array
!      with the rank of MASK minus 1.  The shape is determined from the
!      shape of MASK where the DIM dimension is elided.
! 
!     (A)
!           `ANY(MASK)' is true if any element of MASK is true;
!           otherwise, it is false.  It also is false if MASK has zero
!           size.
  
!     (B)
!           If the rank of MASK is one, then `ANY(MASK,DIM)' is equivalent
!           to `ANY(MASK)'.  If the rank is greater than one, then
!           `ANY(MASK,DIM)' is determined by applying `ANY' to the array
            sections.
  
  _Example_:
--- 6507,6535 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = ANY(MASK [, DIM])'
  
  _Arguments_:
!      MASK        The type of the argument shall be 'LOGICAL' and
!                  it shall not be scalar.
!      DIM         (Optional) DIM shall be a scalar integer with a
!                  value that lies between one and the rank of
!                  MASK.
  
  _Return value_:
!      'ANY(MASK)' returns a scalar value of type 'LOGICAL' where the kind
!      type parameter is the same as the kind type parameter of MASK.  If
!      DIM is present, then 'ANY(MASK, DIM)' returns an array with the
!      rank of MASK minus 1.  The shape is determined from the shape of
!      MASK where the DIM dimension is elided.
  
!      (A)
!           'ANY(MASK)' is true if any element of MASK is true; otherwise,
!           it is false.  It also is false if MASK has zero size.
!      (B)
!           If the rank of MASK is one, then 'ANY(MASK,DIM)' is equivalent
!           to 'ANY(MASK)'.  If the rank is greater than one, then
!           'ANY(MASK,DIM)' is determined by applying 'ANY' to the array
            sections.
  
  _Example_:
*************** _Example_:
*** 6610,6620 ****
  
  File: gfortran.info,  Node: ASIN,  Next: ASINH,  Prev: ANY,  Up: Intrinsic Procedures
  
! 9.18 `ASIN' -- Arcsine function
  ===============================
  
  _Description_:
!      `ASIN(X)' computes the arcsine of its X (inverse of `SIN(X)').
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
--- 6552,6562 ----
  
  File: gfortran.info,  Node: ASIN,  Next: ASINH,  Prev: ANY,  Up: Intrinsic Procedures
  
! 9.18 'ASIN' -- Arcsine function
  ===============================
  
  _Description_:
!      'ASIN(X)' computes the arcsine of its X (inverse of 'SIN(X)').
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
*************** _Class_:
*** 6623,6634 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ASIN(X)'
  
  _Arguments_:
!      X          The type shall be either `REAL' and a
!                 magnitude that is less than or equal to one -
!                 or be `COMPLEX'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The real part
--- 6565,6576 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ASIN(X)'
  
  _Arguments_:
!      X           The type shall be either 'REAL' and a magnitude
!                  that is less than or equal to one - or be
!                  'COMPLEX'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The real part
*************** _Example_:
*** 6642,6665 ****
            end program test_asin
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ASIN(X)'     `REAL(4) X'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DASIN(X)'    `REAL(8) X'   `REAL(8)'     Fortran 77 and
!                                                later
  
  _See also_:
       Inverse function: *note SIN::
  
- 
  
  File: gfortran.info,  Node: ASINH,  Next: ASSOCIATED,  Prev: ASIN,  Up: Intrinsic Procedures
  
! 9.19 `ASINH' -- Inverse hyperbolic sine function
  ================================================
  
  _Description_:
!      `ASINH(X)' computes the inverse hyperbolic sine of X.
  
  _Standard_:
       Fortran 2008 and later
--- 6584,6606 ----
            end program test_asin
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ASIN(X)'      'REAL(4) X'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DASIN(X)'     'REAL(8) X'    'REAL(8)'      Fortran 77 and
!                                                   later
  
  _See also_:
       Inverse function: *note SIN::
  
  
  File: gfortran.info,  Node: ASINH,  Next: ASSOCIATED,  Prev: ASIN,  Up: Intrinsic Procedures
  
! 9.19 'ASINH' -- Inverse hyperbolic sine function
  ================================================
  
  _Description_:
!      'ASINH(X)' computes the inverse hyperbolic sine of X.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 6668,6680 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ASINH(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value is of the same type and kind as  X. If X is
       complex, the imaginary part of the result is in radians and lies
       between -\pi/2 \leq \Im \asinh(x) \leq \pi/2.
  
--- 6609,6621 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ASINH(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value is of the same type and kind as X.  If X is
       complex, the imaginary part of the result is in radians and lies
       between -\pi/2 \leq \Im \asinh(x) \leq \pi/2.
  
*************** _Example_:
*** 6685,6692 ****
            END PROGRAM
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DASINH(X)'   `REAL(8) X'   `REAL(8)'     GNU extension.
  
  _See also_:
       Inverse function: *note SINH::
--- 6626,6633 ----
            END PROGRAM
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DASINH(X)'    'REAL(8) X'    'REAL(8)'      GNU extension.
  
  _See also_:
       Inverse function: *note SINH::
*************** _See also_:
*** 6694,6704 ****
  
  File: gfortran.info,  Node: ASSOCIATED,  Next: ATAN,  Prev: ASINH,  Up: Intrinsic Procedures
  
! 9.20 `ASSOCIATED' -- Status of a pointer or pointer/target pair
  ===============================================================
  
  _Description_:
!      `ASSOCIATED(POINTER [, TARGET])' determines the status of the
       pointer POINTER or if POINTER is associated with the target TARGET.
  
  _Standard_:
--- 6635,6645 ----
  
  File: gfortran.info,  Node: ASSOCIATED,  Next: ATAN,  Prev: ASINH,  Up: Intrinsic Procedures
  
! 9.20 'ASSOCIATED' -- Status of a pointer or pointer/target pair
  ===============================================================
  
  _Description_:
!      'ASSOCIATED(POINTER [, TARGET])' determines the status of the
       pointer POINTER or if POINTER is associated with the target TARGET.
  
  _Standard_:
*************** _Class_:
*** 6708,6750 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = ASSOCIATED(POINTER [, TARGET])'
  
  _Arguments_:
!      POINTER    POINTER shall have the `POINTER' attribute and
!                 it can be of any type.
!      TARGET     (Optional) TARGET shall be a pointer or a
!                 target.  It must have the same type, kind type
!                 parameter, and array rank as POINTER.
       The association status of neither POINTER nor TARGET shall be
       undefined.
  
  _Return value_:
!      `ASSOCIATED(POINTER)' returns a scalar value of type `LOGICAL(4)'.
       There are several cases:
!     (A) When the optional TARGET is not present then
!           `ASSOCIATED(POINTER)' is true if POINTER is associated with a
            target; otherwise, it returns false.
! 
!     (B) If TARGET is present and a scalar target, the result is true if
            TARGET is not a zero-sized storage sequence and the target
            associated with POINTER occupies the same storage units.  If
            POINTER is disassociated, the result is false.
! 
!     (C) If TARGET is present and an array target, the result is true if
            TARGET and POINTER have the same shape, are not zero-sized
            arrays, are arrays whose elements are not zero-sized storage
            sequences, and TARGET and POINTER occupy the same storage
            units in array element order.  As in case(B), the result is
            false, if POINTER is disassociated.
! 
!     (D) If TARGET is present and an scalar pointer, the result is true
            if TARGET is associated with POINTER, the target associated
            with TARGET are not zero-sized storage sequences and occupy
!           the same storage units.  The result is false, if either
!           TARGET or POINTER is disassociated.
! 
!     (E) If TARGET is present and an array pointer, the result is true if
            target associated with POINTER and the target associated with
            TARGET have the same shape, are not zero-sized arrays, are
            arrays whose elements are not zero-sized storage sequences,
--- 6649,6687 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = ASSOCIATED(POINTER [, TARGET])'
  
  _Arguments_:
!      POINTER     POINTER shall have the 'POINTER' attribute and
!                  it can be of any type.
!      TARGET      (Optional) TARGET shall be a pointer or a
!                  target.  It must have the same type, kind type
!                  parameter, and array rank as POINTER.
       The association status of neither POINTER nor TARGET shall be
       undefined.
  
  _Return value_:
!      'ASSOCIATED(POINTER)' returns a scalar value of type 'LOGICAL(4)'.
       There are several cases:
!      (A) When the optional TARGET is not present then
!           'ASSOCIATED(POINTER)' is true if POINTER is associated with a
            target; otherwise, it returns false.
!      (B) If TARGET is present and a scalar target, the result is true if
            TARGET is not a zero-sized storage sequence and the target
            associated with POINTER occupies the same storage units.  If
            POINTER is disassociated, the result is false.
!      (C) If TARGET is present and an array target, the result is true if
            TARGET and POINTER have the same shape, are not zero-sized
            arrays, are arrays whose elements are not zero-sized storage
            sequences, and TARGET and POINTER occupy the same storage
            units in array element order.  As in case(B), the result is
            false, if POINTER is disassociated.
!      (D) If TARGET is present and an scalar pointer, the result is true
            if TARGET is associated with POINTER, the target associated
            with TARGET are not zero-sized storage sequences and occupy
!           the same storage units.  The result is false, if either TARGET
!           or POINTER is disassociated.
!      (E) If TARGET is present and an array pointer, the result is true if
            target associated with POINTER and the target associated with
            TARGET have the same shape, are not zero-sized arrays, are
            arrays whose elements are not zero-sized storage sequences,
*************** _See also_:
*** 6768,6778 ****
  
  File: gfortran.info,  Node: ATAN,  Next: ATAN2,  Prev: ASSOCIATED,  Up: Intrinsic Procedures
  
! 9.21 `ATAN' -- Arctangent function
  ==================================
  
  _Description_:
!      `ATAN(X)' computes the arctangent of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument and for two arguments
--- 6705,6715 ----
  
  File: gfortran.info,  Node: ATAN,  Next: ATAN2,  Prev: ASSOCIATED,  Up: Intrinsic Procedures
  
! 9.21 'ATAN' -- Arctangent function
  ==================================
  
  _Description_:
!      'ATAN(X)' computes the arctangent of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument and for two arguments
*************** _Class_:
*** 6782,6802 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ATAN(X)'
!      `RESULT = ATAN(Y, X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'; if Y is
!                 present, X shall be REAL.
!      Y shall    
!      be of the  
!      same type  
!      and kind   
!      as X.      
  
  _Return value_:
       The return value is of the same type and kind as X.  If Y is
!      present, the result is identical to `ATAN2(Y,X)'.  Otherwise, it
       the arcus tangent of X, where the real part of the result is in
       radians and lies in the range -\pi/2 \leq \Re \atan(x) \leq \pi/2.
  
--- 6719,6739 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ATAN(X)'
!      'RESULT = ATAN(Y, X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'; if Y is
!                  present, X shall be REAL.
!      Y shall
!      be of the
!      same type
!      and kind
!      as X.
  
  _Return value_:
       The return value is of the same type and kind as X.  If Y is
!      present, the result is identical to 'ATAN2(Y,X)'.  Otherwise, it
       the arcus tangent of X, where the real part of the result is in
       radians and lies in the range -\pi/2 \leq \Re \atan(x) \leq \pi/2.
  
*************** _Example_:
*** 6807,6832 ****
            end program test_atan
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ATAN(X)'     `REAL(4) X'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DATAN(X)'    `REAL(8) X'   `REAL(8)'     Fortran 77 and
!                                                later
  
  _See also_:
       Inverse function: *note TAN::
  
- 
  
  File: gfortran.info,  Node: ATAN2,  Next: ATANH,  Prev: ATAN,  Up: Intrinsic Procedures
  
! 9.22 `ATAN2' -- Arctangent function
  ===================================
  
  _Description_:
!      `ATAN2(Y, X)' computes the principal value of the argument
!      function of the complex number X + i Y. This function can be used
!      to transform from Cartesian into polar coordinates and allows to
       determine the angle in the correct quadrant.
  
  _Standard_:
--- 6744,6768 ----
            end program test_atan
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ATAN(X)'      'REAL(4) X'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DATAN(X)'     'REAL(8) X'    'REAL(8)'      Fortran 77 and
!                                                   later
  
  _See also_:
       Inverse function: *note TAN::
  
  
  File: gfortran.info,  Node: ATAN2,  Next: ATANH,  Prev: ATAN,  Up: Intrinsic Procedures
  
! 9.22 'ATAN2' -- Arctangent function
  ===================================
  
  _Description_:
!      'ATAN2(Y, X)' computes the principal value of the argument function
!      of the complex number X + i Y. This function can be used to
!      transform from Cartesian into polar coordinates and allows to
       determine the angle in the correct quadrant.
  
  _Standard_:
*************** _Class_:
*** 6836,6852 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ATAN2(Y, X)'
  
  _Arguments_:
!      Y          The type shall be `REAL'.
!      X          The type and kind type parameter shall be the
!                 same as Y.  If Y is zero, then X must be
!                 nonzero.
  
  _Return value_:
!      The return value has the same type and kind type parameter as Y. It
!      is the principal value of the complex number X + i Y.  If X is
       nonzero, then it lies in the range -\pi \le \atan (x) \leq \pi.
       The sign is positive if Y is positive.  If Y is zero, then the
       return value is zero if X is strictly positive, \pi if X is
--- 6772,6788 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ATAN2(Y, X)'
  
  _Arguments_:
!      Y           The type shall be 'REAL'.
!      X           The type and kind type parameter shall be the
!                  same as Y.  If Y is zero, then X must be
!                  nonzero.
  
  _Return value_:
!      The return value has the same type and kind type parameter as Y.
!      It is the principal value of the complex number X + i Y. If X is
       nonzero, then it lies in the range -\pi \le \atan (x) \leq \pi.
       The sign is positive if Y is positive.  If Y is zero, then the
       return value is zero if X is strictly positive, \pi if X is
*************** _Example_:
*** 6861,6880 ****
            end program test_atan2
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ATAN2(X,     `REAL(4) X,   `REAL(4)'     Fortran 77 and
!      Y)'           Y'                          later
!      `DATAN2(X,    `REAL(8) X,   `REAL(8)'     Fortran 77 and
!      Y)'           Y'                          later
  
  
  File: gfortran.info,  Node: ATANH,  Next: ATOMIC_ADD,  Prev: ATAN2,  Up: Intrinsic Procedures
  
! 9.23 `ATANH' -- Inverse hyperbolic tangent function
  ===================================================
  
  _Description_:
!      `ATANH(X)' computes the inverse hyperbolic tangent of X.
  
  _Standard_:
       Fortran 2008 and later
--- 6797,6816 ----
            end program test_atan2
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ATAN2(X,      'REAL(4) X,    'REAL(4)'      Fortran 77 and
!      Y)'            Y'                            later
!      'DATAN2(X,     'REAL(8) X,    'REAL(8)'      Fortran 77 and
!      Y)'            Y'                            later
  
  
  File: gfortran.info,  Node: ATANH,  Next: ATOMIC_ADD,  Prev: ATAN2,  Up: Intrinsic Procedures
  
! 9.23 'ATANH' -- Inverse hyperbolic tangent function
  ===================================================
  
  _Description_:
!      'ATANH(X)' computes the inverse hyperbolic tangent of X.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 6883,6895 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ATANH(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value has same type and kind as X. If X is complex, the
       imaginary part of the result is in radians and lies between -\pi/2
       \leq \Im \atanh(x) \leq \pi/2.
  
--- 6819,6831 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ATANH(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value has same type and kind as X.  If X is complex, the
       imaginary part of the result is in radians and lies between -\pi/2
       \leq \Im \atanh(x) \leq \pi/2.
  
*************** _Example_:
*** 6900,6907 ****
            END PROGRAM
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DATANH(X)'   `REAL(8) X'   `REAL(8)'     GNU extension
  
  _See also_:
       Inverse function: *note TANH::
--- 6836,6843 ----
            END PROGRAM
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DATANH(X)'    'REAL(8) X'    'REAL(8)'      GNU extension
  
  _See also_:
       Inverse function: *note TANH::
*************** _See also_:
*** 6909,6926 ****
  
  File: gfortran.info,  Node: ATOMIC_ADD,  Next: ATOMIC_AND,  Prev: ATANH,  Up: Intrinsic Procedures
  
! 9.24 `ATOMIC_ADD' -- Atomic ADD operation
  =========================================
  
  _Description_:
!      `ATOMIC_ADD(ATOM, VALUE)' atomically adds the value of VAR to the
!      variable ATOM. When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 6845,6862 ----
  
  File: gfortran.info,  Node: ATOMIC_ADD,  Next: ATOMIC_AND,  Prev: ATANH,  Up: Intrinsic Procedures
  
! 9.24 'ATOMIC_ADD' -- Atomic ADD operation
  =========================================
  
  _Description_:
!      'ATOMIC_ADD(ATOM, VALUE)' atomically adds the value of VAR to the
!      variable ATOM.  When STAT is present and the invokation was
!      successful, it is assigned the value 0.  If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 6929,6944 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_ADD (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 6865,6879 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_ADD (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 6955,6972 ****
  
  File: gfortran.info,  Node: ATOMIC_AND,  Next: ATOMIC_CAS,  Prev: ATOMIC_ADD,  Up: Intrinsic Procedures
  
! 9.25 `ATOMIC_AND' -- Atomic bitwise AND operation
  =================================================
  
  _Description_:
!      `ATOMIC_AND(ATOM, VALUE)' atomically defines ATOM with the bitwise
!      AND between the values of ATOM and VALUE. When STAT is present and
!      the invokation was successful, it is assigned the value 0. If it
!      is present and the invokation has failed, it is assigned a
!      positive value; in particular, for a coindexed ATOM, if the remote
!      image has stopped, it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 6890,6907 ----
  
  File: gfortran.info,  Node: ATOMIC_AND,  Next: ATOMIC_CAS,  Prev: ATOMIC_ADD,  Up: Intrinsic Procedures
  
! 9.25 'ATOMIC_AND' -- Atomic bitwise AND operation
  =================================================
  
  _Description_:
!      'ATOMIC_AND(ATOM, VALUE)' atomically defines ATOM with the bitwise
!      AND between the values of ATOM and VALUE.  When STAT is present and
!      the invokation was successful, it is assigned the value 0.  If it
!      is present and the invokation has failed, it is assigned a positive
!      value; in particular, for a coindexed ATOM, if the remote image has
!      stopped, it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 6975,6990 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_AND (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 6910,6924 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_AND (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7001,7020 ****
  
  File: gfortran.info,  Node: ATOMIC_CAS,  Next: ATOMIC_DEFINE,  Prev: ATOMIC_AND,  Up: Intrinsic Procedures
  
! 9.26 `ATOMIC_CAS' -- Atomic compare and swap
  ============================================
  
  _Description_:
!      `ATOMIC_CAS' compares the variable ATOM with the value of COMPARE;
       if the value is the same, ATOM is set to the value of NEW.
!      Additionally, OLD is set to the value of ATOM that was used for
!      the comparison.  When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 6935,6954 ----
  
  File: gfortran.info,  Node: ATOMIC_CAS,  Next: ATOMIC_DEFINE,  Prev: ATOMIC_AND,  Up: Intrinsic Procedures
  
! 9.26 'ATOMIC_CAS' -- Atomic compare and swap
  ============================================
  
  _Description_:
!      'ATOMIC_CAS' compares the variable ATOM with the value of COMPARE;
       if the value is the same, ATOM is set to the value of NEW.
!      Additionally, OLD is set to the value of ATOM that was used for the
!      comparison.  When STAT is present and the invokation was
!      successful, it is assigned the value 0.  If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7023,7042 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_CAS (ATOM, OLD, COMPARE, NEW [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of either
!                 integer type with `ATOMIC_INT_KIND' kind or
!                 logical type with `ATOMIC_LOGICAL_KIND' kind.
!      OLD        Scalar of the same type and kind as ATOM.
!      COMPARE    Scalar variable of the same type and kind as
!                 ATOM.
!      NEW        Scalar variable of the same type as ATOM. If
!                 kind is different, the value is converted to
!                 the kind of ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 6957,6975 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_CAS (ATOM, OLD, COMPARE, NEW [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of either
!                  integer type with 'ATOMIC_INT_KIND' kind or
!                  logical type with 'ATOMIC_LOGICAL_KIND' kind.
!      OLD         Scalar of the same type and kind as ATOM.
!      COMPARE     Scalar variable of the same type and kind as
!                  ATOM.
!      NEW         Scalar variable of the same type as ATOM.  If
!                  kind is different, the value is converted to the
!                  kind of ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7051,7068 ****
  
  File: gfortran.info,  Node: ATOMIC_DEFINE,  Next: ATOMIC_FETCH_ADD,  Prev: ATOMIC_CAS,  Up: Intrinsic Procedures
  
! 9.27 `ATOMIC_DEFINE' -- Setting a variable atomically
  =====================================================
  
  _Description_:
!      `ATOMIC_DEFINE(ATOM, VALUE)' defines the variable ATOM with the
!      value VALUE atomically. When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
!      invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       Fortran 2008 and later; with STAT, TS 18508 or later
--- 6984,7001 ----
  
  File: gfortran.info,  Node: ATOMIC_DEFINE,  Next: ATOMIC_FETCH_ADD,  Prev: ATOMIC_CAS,  Up: Intrinsic Procedures
  
! 9.27 'ATOMIC_DEFINE' -- Setting a variable atomically
  =====================================================
  
  _Description_:
!      'ATOMIC_DEFINE(ATOM, VALUE)' defines the variable ATOM with the
!      value VALUE atomically.  When STAT is present and the invokation
!      was successful, it is assigned the value 0.  If it is present and
!      the invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       Fortran 2008 and later; with STAT, TS 18508 or later
*************** _Class_:
*** 7071,7087 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_DEFINE (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of either
!                 integer type with `ATOMIC_INT_KIND' kind or
!                 logical type with `ATOMIC_LOGICAL_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7004,7020 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_DEFINE (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of either
!                  integer type with 'ATOMIC_INT_KIND' kind or
!                  logical type with 'ATOMIC_LOGICAL_KIND' kind.
!                  
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7098,7115 ****
  
  File: gfortran.info,  Node: ATOMIC_FETCH_ADD,  Next: ATOMIC_FETCH_AND,  Prev: ATOMIC_DEFINE,  Up: Intrinsic Procedures
  
! 9.28 `ATOMIC_FETCH_ADD' -- Atomic ADD operation with prior fetch
  ================================================================
  
  _Description_:
!      `ATOMIC_FETCH_ADD(ATOM, VALUE, OLD)' atomically stores the value of
!      ATOM in OLD and adds the value of VAR to the variable ATOM. When
       STAT is present and the invokation was successful, it is assigned
!      the value 0. If it is present and the invokation has failed, it is
       assigned a positive value; in particular, for a coindexed ATOM, if
       the remote image has stopped, it is assigned the value of
!      `ISO_FORTRAN_ENV''s `STAT_STOPPED_IMAGE' and if the remote image
!      has failed, the value `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 7031,7048 ----
  
  File: gfortran.info,  Node: ATOMIC_FETCH_ADD,  Next: ATOMIC_FETCH_AND,  Prev: ATOMIC_DEFINE,  Up: Intrinsic Procedures
  
! 9.28 'ATOMIC_FETCH_ADD' -- Atomic ADD operation with prior fetch
  ================================================================
  
  _Description_:
!      'ATOMIC_FETCH_ADD(ATOM, VALUE, OLD)' atomically stores the value of
!      ATOM in OLD and adds the value of VAR to the variable ATOM.  When
       STAT is present and the invokation was successful, it is assigned
!      the value 0.  If it is present and the invokation has failed, it is
       assigned a positive value; in particular, for a coindexed ATOM, if
       the remote image has stopped, it is assigned the value of
!      'ISO_FORTRAN_ENV''s 'STAT_STOPPED_IMAGE' and if the remote image
!      has failed, the value 'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7118,7135 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_FETCH_ADD (ATOM, VALUE, old [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!                 `ATOMIC_LOGICAL_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      OLD        Scalar of the same type and kind as ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7051,7068 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_FETCH_ADD (ATOM, VALUE, old [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!                  'ATOMIC_LOGICAL_KIND' kind.
!                  
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      OLD         Scalar of the same type and kind as ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7146,7164 ****
  
  File: gfortran.info,  Node: ATOMIC_FETCH_AND,  Next: ATOMIC_FETCH_OR,  Prev: ATOMIC_FETCH_ADD,  Up: Intrinsic Procedures
  
! 9.29 `ATOMIC_FETCH_AND' -- Atomic bitwise AND operation with prior fetch
  ========================================================================
  
  _Description_:
!      `ATOMIC_AND(ATOM, VALUE)' atomically stores the value of ATOM in
       OLD and defines ATOM with the bitwise AND between the values of
!      ATOM and VALUE. When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 7079,7097 ----
  
  File: gfortran.info,  Node: ATOMIC_FETCH_AND,  Next: ATOMIC_FETCH_OR,  Prev: ATOMIC_FETCH_ADD,  Up: Intrinsic Procedures
  
! 9.29 'ATOMIC_FETCH_AND' -- Atomic bitwise AND operation with prior fetch
  ========================================================================
  
  _Description_:
!      'ATOMIC_AND(ATOM, VALUE)' atomically stores the value of ATOM in
       OLD and defines ATOM with the bitwise AND between the values of
!      ATOM and VALUE.  When STAT is present and the invokation was
!      successful, it is assigned the value 0.  If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7167,7183 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_FETCH_AND (ATOM, VALUE, OLD [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      OLD        Scalar of the same type and kind as ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7100,7115 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_FETCH_AND (ATOM, VALUE, OLD [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      OLD         Scalar of the same type and kind as ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7194,7212 ****
  
  File: gfortran.info,  Node: ATOMIC_FETCH_OR,  Next: ATOMIC_FETCH_XOR,  Prev: ATOMIC_FETCH_AND,  Up: Intrinsic Procedures
  
! 9.30 `ATOMIC_FETCH_OR' -- Atomic bitwise OR operation with prior fetch
  ======================================================================
  
  _Description_:
!      `ATOMIC_OR(ATOM, VALUE)' atomically stores the value of ATOM in
!      OLD and defines ATOM with the bitwise OR between the values of
!      ATOM and VALUE. When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
!      invokation has failed, it is assigned a positive value; in
!      particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 7126,7143 ----
  
  File: gfortran.info,  Node: ATOMIC_FETCH_OR,  Next: ATOMIC_FETCH_XOR,  Prev: ATOMIC_FETCH_AND,  Up: Intrinsic Procedures
  
! 9.30 'ATOMIC_FETCH_OR' -- Atomic bitwise OR operation with prior fetch
  ======================================================================
  
  _Description_:
!      'ATOMIC_OR(ATOM, VALUE)' atomically stores the value of ATOM in OLD
!      and defines ATOM with the bitwise OR between the values of ATOM and
!      VALUE.  When STAT is present and the invokation was successful, it
!      is assigned the value 0.  If it is present and the invokation has
!      failed, it is assigned a positive value; in particular, for a
!      coindexed ATOM, if the remote image has stopped, it is assigned the
!      value of 'ISO_FORTRAN_ENV''s 'STAT_STOPPED_IMAGE' and if the remote
!      image has failed, the value 'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7215,7231 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_FETCH_OR (ATOM, VALUE, OLD [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      OLD        Scalar of the same type and kind as ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7146,7161 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_FETCH_OR (ATOM, VALUE, OLD [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      OLD         Scalar of the same type and kind as ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7242,7260 ****
  
  File: gfortran.info,  Node: ATOMIC_FETCH_XOR,  Next: ATOMIC_OR,  Prev: ATOMIC_FETCH_OR,  Up: Intrinsic Procedures
  
! 9.31 `ATOMIC_FETCH_XOR' -- Atomic bitwise XOR operation with prior fetch
  ========================================================================
  
  _Description_:
!      `ATOMIC_XOR(ATOM, VALUE)' atomically stores the value of ATOM in
       OLD and defines ATOM with the bitwise XOR between the values of
!      ATOM and VALUE. When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 7172,7190 ----
  
  File: gfortran.info,  Node: ATOMIC_FETCH_XOR,  Next: ATOMIC_OR,  Prev: ATOMIC_FETCH_OR,  Up: Intrinsic Procedures
  
! 9.31 'ATOMIC_FETCH_XOR' -- Atomic bitwise XOR operation with prior fetch
  ========================================================================
  
  _Description_:
!      'ATOMIC_XOR(ATOM, VALUE)' atomically stores the value of ATOM in
       OLD and defines ATOM with the bitwise XOR between the values of
!      ATOM and VALUE.  When STAT is present and the invokation was
!      successful, it is assigned the value 0.  If it is present and the
       invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7263,7279 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_FETCH_XOR (ATOM, VALUE, OLD [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      OLD        Scalar of the same type and kind as ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7193,7208 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_FETCH_XOR (ATOM, VALUE, OLD [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      OLD         Scalar of the same type and kind as ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7290,7307 ****
  
  File: gfortran.info,  Node: ATOMIC_OR,  Next: ATOMIC_REF,  Prev: ATOMIC_FETCH_XOR,  Up: Intrinsic Procedures
  
! 9.32 `ATOMIC_OR' -- Atomic bitwise OR operation
  ===============================================
  
  _Description_:
!      `ATOMIC_OR(ATOM, VALUE)' atomically defines ATOM with the bitwise
!      AND between the values of ATOM and VALUE. When STAT is present and
!      the invokation was successful, it is assigned the value 0. If it
!      is present and the invokation has failed, it is assigned a
!      positive value; in particular, for a coindexed ATOM, if the remote
!      image has stopped, it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 7219,7236 ----
  
  File: gfortran.info,  Node: ATOMIC_OR,  Next: ATOMIC_REF,  Prev: ATOMIC_FETCH_XOR,  Up: Intrinsic Procedures
  
! 9.32 'ATOMIC_OR' -- Atomic bitwise OR operation
  ===============================================
  
  _Description_:
!      'ATOMIC_OR(ATOM, VALUE)' atomically defines ATOM with the bitwise
!      AND between the values of ATOM and VALUE.  When STAT is present and
!      the invokation was successful, it is assigned the value 0.  If it
!      is present and the invokation has failed, it is assigned a positive
!      value; in particular, for a coindexed ATOM, if the remote image has
!      stopped, it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7310,7325 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_OR (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7239,7253 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_OR (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7336,7353 ****
  
  File: gfortran.info,  Node: ATOMIC_REF,  Next: ATOMIC_XOR,  Prev: ATOMIC_OR,  Up: Intrinsic Procedures
  
! 9.33 `ATOMIC_REF' -- Obtaining the value of a variable atomically
  =================================================================
  
  _Description_:
!      `ATOMIC_DEFINE(ATOM, VALUE)' atomically assigns the value of the
!      variable ATOM to VALUE. When STAT is present and the invokation
!      was successful, it is assigned the value 0. If it is present and
       the invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       Fortran 2008 and later; with STAT, TS 18508 or later
--- 7264,7281 ----
  
  File: gfortran.info,  Node: ATOMIC_REF,  Next: ATOMIC_XOR,  Prev: ATOMIC_OR,  Up: Intrinsic Procedures
  
! 9.33 'ATOMIC_REF' -- Obtaining the value of a variable atomically
  =================================================================
  
  _Description_:
!      'ATOMIC_DEFINE(ATOM, VALUE)' atomically assigns the value of the
!      variable ATOM to VALUE.  When STAT is present and the invokation
!      was successful, it is assigned the value 0.  If it is present and
       the invokation has failed, it is assigned a positive value; in
       particular, for a coindexed ATOM, if the remote image has stopped,
!      it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       Fortran 2008 and later; with STAT, TS 18508 or later
*************** _Class_:
*** 7356,7372 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_REF(VALUE, ATOM [, STAT])'
  
  _Arguments_:
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      ATOM       Scalar coarray or coindexed variable of either
!                 integer type with `ATOMIC_INT_KIND' kind or
!                 logical type with `ATOMIC_LOGICAL_KIND' kind.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7284,7299 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_REF(VALUE, ATOM [, STAT])'
  
  _Arguments_:
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      ATOM        Scalar coarray or coindexed variable of either
!                  integer type with 'ATOMIC_INT_KIND' kind or
!                  logical type with 'ATOMIC_LOGICAL_KIND' kind.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7389,7406 ****
  
  File: gfortran.info,  Node: ATOMIC_XOR,  Next: BACKTRACE,  Prev: ATOMIC_REF,  Up: Intrinsic Procedures
  
! 9.34 `ATOMIC_XOR' -- Atomic bitwise OR operation
  ================================================
  
  _Description_:
!      `ATOMIC_AND(ATOM, VALUE)' atomically defines ATOM with the bitwise
!      XOR between the values of ATOM and VALUE. When STAT is present and
!      the invokation was successful, it is assigned the value 0. If it
!      is present and the invokation has failed, it is assigned a
!      positive value; in particular, for a coindexed ATOM, if the remote
!      image has stopped, it is assigned the value of `ISO_FORTRAN_ENV''s
!      `STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      `STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
--- 7316,7333 ----
  
  File: gfortran.info,  Node: ATOMIC_XOR,  Next: BACKTRACE,  Prev: ATOMIC_REF,  Up: Intrinsic Procedures
  
! 9.34 'ATOMIC_XOR' -- Atomic bitwise OR operation
  ================================================
  
  _Description_:
!      'ATOMIC_AND(ATOM, VALUE)' atomically defines ATOM with the bitwise
!      XOR between the values of ATOM and VALUE.  When STAT is present and
!      the invokation was successful, it is assigned the value 0.  If it
!      is present and the invokation has failed, it is assigned a positive
!      value; in particular, for a coindexed ATOM, if the remote image has
!      stopped, it is assigned the value of 'ISO_FORTRAN_ENV''s
!      'STAT_STOPPED_IMAGE' and if the remote image has failed, the value
!      'STAT_FAILED_IMAGE'.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 7409,7424 ****
       Atomic subroutine
  
  _Syntax_:
!      `CALL ATOMIC_XOR (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM       Scalar coarray or coindexed variable of integer
!                 type with `ATOMIC_INT_KIND' kind.
!      VALUE      Scalar of the same type as ATOM. If the kind
!                 is different, the value is converted to the
!                 kind of ATOM.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 7336,7350 ----
       Atomic subroutine
  
  _Syntax_:
!      'CALL ATOMIC_XOR (ATOM, VALUE [, STAT])'
  
  _Arguments_:
!      ATOM        Scalar coarray or coindexed variable of integer
!                  type with 'ATOMIC_INT_KIND' kind.
!      VALUE       Scalar of the same type as ATOM.  If the kind is
!                  different, the value is converted to the kind of
!                  ATOM.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _See also_:
*** 7435,7448 ****
  
  File: gfortran.info,  Node: BACKTRACE,  Next: BESSEL_J0,  Prev: ATOMIC_XOR,  Up: Intrinsic Procedures
  
! 9.35 `BACKTRACE' -- Show a backtrace
  ====================================
  
  _Description_:
!      `BACKTRACE' shows a backtrace at an arbitrary place in user code.
!      Program execution continues normally afterwards. The backtrace
!      information is printed to the unit corresponding to `ERROR_UNIT'
!      in `ISO_FORTRAN_ENV'.
  
  _Standard_:
       GNU Extension
--- 7361,7374 ----
  
  File: gfortran.info,  Node: BACKTRACE,  Next: BESSEL_J0,  Prev: ATOMIC_XOR,  Up: Intrinsic Procedures
  
! 9.35 'BACKTRACE' -- Show a backtrace
  ====================================
  
  _Description_:
!      'BACKTRACE' shows a backtrace at an arbitrary place in user code.
!      Program execution continues normally afterwards.  The backtrace
!      information is printed to the unit corresponding to 'ERROR_UNIT' in
!      'ISO_FORTRAN_ENV'.
  
  _Standard_:
       GNU Extension
*************** _Class_:
*** 7451,7457 ****
       Subroutine
  
  _Syntax_:
!      `CALL BACKTRACE'
  
  _Arguments_:
       None
--- 7377,7383 ----
       Subroutine
  
  _Syntax_:
!      'CALL BACKTRACE'
  
  _Arguments_:
       None
*************** _See also_:
*** 7462,7473 ****
  
  File: gfortran.info,  Node: BESSEL_J0,  Next: BESSEL_J1,  Prev: BACKTRACE,  Up: Intrinsic Procedures
  
! 9.36 `BESSEL_J0' -- Bessel function of the first kind of order 0
  ================================================================
  
  _Description_:
!      `BESSEL_J0(X)' computes the Bessel function of the first kind of
!      order 0 of X. This function is available under the name `BESJ0' as
       a GNU extension.
  
  _Standard_:
--- 7388,7399 ----
  
  File: gfortran.info,  Node: BESSEL_J0,  Next: BESSEL_J1,  Prev: BACKTRACE,  Up: Intrinsic Procedures
  
! 9.36 'BESSEL_J0' -- Bessel function of the first kind of order 0
  ================================================================
  
  _Description_:
!      'BESSEL_J0(X)' computes the Bessel function of the first kind of
!      order 0 of X.  This function is available under the name 'BESJ0' as
       a GNU extension.
  
  _Standard_:
*************** _Class_:
*** 7477,7490 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BESSEL_J0(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL' and lies in the range  -
!      0.4027... \leq Bessel (0,x) \leq 1. It has the same kind as X.
  
  _Example_:
            program test_besj0
--- 7403,7416 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BESSEL_J0(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL' and lies in the range -
!      0.4027... \leq Bessel (0,x) \leq 1.  It has the same kind as X.
  
  _Example_:
            program test_besj0
*************** _Example_:
*** 7493,7510 ****
            end program test_besj0
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DBESJ0(X)'   `REAL(8) X'   `REAL(8)'     GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_J1,  Next: BESSEL_JN,  Prev: BESSEL_J0,  Up: Intrinsic Procedures
  
! 9.37 `BESSEL_J1' -- Bessel function of the first kind of order 1
  ================================================================
  
  _Description_:
!      `BESSEL_J1(X)' computes the Bessel function of the first kind of
!      order 1 of X. This function is available under the name `BESJ1' as
       a GNU extension.
  
  _Standard_:
--- 7419,7436 ----
            end program test_besj0
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DBESJ0(X)'    'REAL(8) X'    'REAL(8)'      GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_J1,  Next: BESSEL_JN,  Prev: BESSEL_J0,  Up: Intrinsic Procedures
  
! 9.37 'BESSEL_J1' -- Bessel function of the first kind of order 1
  ================================================================
  
  _Description_:
!      'BESSEL_J1(X)' computes the Bessel function of the first kind of
!      order 1 of X.  This function is available under the name 'BESJ1' as
       a GNU extension.
  
  _Standard_:
*************** _Class_:
*** 7514,7527 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BESSEL_J1(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL' and lies in the range  -
!      0.5818... \leq Bessel (0,x) \leq 0.5818 . It has the same kind as
       X.
  
  _Example_:
--- 7440,7453 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BESSEL_J1(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL' and lies in the range -
!      0.5818... \leq Bessel (0,x) \leq 0.5818 .  It has the same kind as
       X.
  
  _Example_:
*************** _Example_:
*** 7531,7552 ****
            end program test_besj1
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DBESJ1(X)'   `REAL(8) X'   `REAL(8)'     GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_JN,  Next: BESSEL_Y0,  Prev: BESSEL_J1,  Up: Intrinsic Procedures
  
! 9.38 `BESSEL_JN' -- Bessel function of the first kind
  =====================================================
  
  _Description_:
!      `BESSEL_JN(N, X)' computes the Bessel function of the first kind of
!      order N of X. This function is available under the name `BESJN' as
       a GNU extension.  If N and X are arrays, their ranks and shapes
       shall conform.
  
!      `BESSEL_JN(N1, N2, X)' returns an array with the Bessel functions
       of the first kind of the orders N1 to N2.
  
  _Standard_:
--- 7457,7478 ----
            end program test_besj1
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DBESJ1(X)'    'REAL(8) X'    'REAL(8)'      GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_JN,  Next: BESSEL_Y0,  Prev: BESSEL_J1,  Up: Intrinsic Procedures
  
! 9.38 'BESSEL_JN' -- Bessel function of the first kind
  =====================================================
  
  _Description_:
!      'BESSEL_JN(N, X)' computes the Bessel function of the first kind of
!      order N of X.  This function is available under the name 'BESJN' as
       a GNU extension.  If N and X are arrays, their ranks and shapes
       shall conform.
  
!      'BESSEL_JN(N1, N2, X)' returns an array with the Bessel functions
       of the first kind of the orders N1 to N2.
  
  _Standard_:
*************** _Standard_:
*** 7554,7577 ****
  
  _Class_:
       Elemental function, except for the transformational function
!      `BESSEL_JN(N1, N2, X)'
  
  _Syntax_:
!      `RESULT = BESSEL_JN(N, X)'
!      `RESULT = BESSEL_JN(N1, N2, X)'
  
  _Arguments_:
!      N          Shall be a scalar or an array of type
!                 `INTEGER'.
!      N1         Shall be a non-negative scalar of type
!                 `INTEGER'.
!      N2         Shall be a non-negative scalar of type
!                 `INTEGER'.
!      X          Shall be a scalar or an array of type  `REAL';
!                 for `BESSEL_JN(N1, N2, X)' it shall be scalar.
  
  _Return value_:
!      The return value is a scalar of type `REAL'. It has the same kind
       as X.
  
  _Note_:
--- 7480,7502 ----
  
  _Class_:
       Elemental function, except for the transformational function
!      'BESSEL_JN(N1, N2, X)'
  
  _Syntax_:
!      'RESULT = BESSEL_JN(N, X)'
!      'RESULT = BESSEL_JN(N1, N2, X)'
  
  _Arguments_:
!      N           Shall be a scalar or an array of type 'INTEGER'.
!      N1          Shall be a non-negative scalar of type
!                  'INTEGER'.
!      N2          Shall be a non-negative scalar of type
!                  'INTEGER'.
!      X           Shall be a scalar or an array of type 'REAL';
!                  for 'BESSEL_JN(N1, N2, X)' it shall be scalar.
  
  _Return value_:
!      The return value is a scalar of type 'REAL'.  It has the same kind
       as X.
  
  _Note_:
*************** _Example_:
*** 7586,7605 ****
            end program test_besjn
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DBESJN(N,    `INTEGER N'   `REAL(8)'     GNU extension
!      X)'                                       
!                    `REAL(8) X'                 
  
  
  File: gfortran.info,  Node: BESSEL_Y0,  Next: BESSEL_Y1,  Prev: BESSEL_JN,  Up: Intrinsic Procedures
  
! 9.39 `BESSEL_Y0' -- Bessel function of the second kind of order 0
  =================================================================
  
  _Description_:
!      `BESSEL_Y0(X)' computes the Bessel function of the second kind of
!      order 0 of X. This function is available under the name `BESY0' as
       a GNU extension.
  
  _Standard_:
--- 7511,7530 ----
            end program test_besjn
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DBESJN(N,     'INTEGER N'    'REAL(8)'      GNU extension
!      X)'
!                     'REAL(8) X'
  
  
  File: gfortran.info,  Node: BESSEL_Y0,  Next: BESSEL_Y1,  Prev: BESSEL_JN,  Up: Intrinsic Procedures
  
! 9.39 'BESSEL_Y0' -- Bessel function of the second kind of order 0
  =================================================================
  
  _Description_:
!      'BESSEL_Y0(X)' computes the Bessel function of the second kind of
!      order 0 of X.  This function is available under the name 'BESY0' as
       a GNU extension.
  
  _Standard_:
*************** _Class_:
*** 7609,7621 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BESSEL_Y0(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL'. It has the same kind as X.
  
  _Example_:
            program test_besy0
--- 7534,7546 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BESSEL_Y0(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL'.  It has the same kind as X.
  
  _Example_:
            program test_besy0
*************** _Example_:
*** 7624,7641 ****
            end program test_besy0
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DBESY0(X)'   `REAL(8) X'   `REAL(8)'     GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_Y1,  Next: BESSEL_YN,  Prev: BESSEL_Y0,  Up: Intrinsic Procedures
  
! 9.40 `BESSEL_Y1' -- Bessel function of the second kind of order 1
  =================================================================
  
  _Description_:
!      `BESSEL_Y1(X)' computes the Bessel function of the second kind of
!      order 1 of X. This function is available under the name `BESY1' as
       a GNU extension.
  
  _Standard_:
--- 7549,7566 ----
            end program test_besy0
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DBESY0(X)'    'REAL(8) X'    'REAL(8)'      GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_Y1,  Next: BESSEL_YN,  Prev: BESSEL_Y0,  Up: Intrinsic Procedures
  
! 9.40 'BESSEL_Y1' -- Bessel function of the second kind of order 1
  =================================================================
  
  _Description_:
!      'BESSEL_Y1(X)' computes the Bessel function of the second kind of
!      order 1 of X.  This function is available under the name 'BESY1' as
       a GNU extension.
  
  _Standard_:
*************** _Class_:
*** 7645,7657 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BESSEL_Y1(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL'. It has the same kind as X.
  
  _Example_:
            program test_besy1
--- 7570,7582 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BESSEL_Y1(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL'.  It has the same kind as X.
  
  _Example_:
            program test_besy1
*************** _Example_:
*** 7660,7681 ****
            end program test_besy1
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DBESY1(X)'   `REAL(8) X'   `REAL(8)'     GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_YN,  Next: BGE,  Prev: BESSEL_Y1,  Up: Intrinsic Procedures
  
! 9.41 `BESSEL_YN' -- Bessel function of the second kind
  ======================================================
  
  _Description_:
!      `BESSEL_YN(N, X)' computes the Bessel function of the second kind
!      of order N of X. This function is available under the name `BESYN'
       as a GNU extension.  If N and X are arrays, their ranks and shapes
       shall conform.
  
!      `BESSEL_YN(N1, N2, X)' returns an array with the Bessel functions
       of the first kind of the orders N1 to N2.
  
  _Standard_:
--- 7585,7606 ----
            end program test_besy1
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DBESY1(X)'    'REAL(8) X'    'REAL(8)'      GNU extension
  
  
  File: gfortran.info,  Node: BESSEL_YN,  Next: BGE,  Prev: BESSEL_Y1,  Up: Intrinsic Procedures
  
! 9.41 'BESSEL_YN' -- Bessel function of the second kind
  ======================================================
  
  _Description_:
!      'BESSEL_YN(N, X)' computes the Bessel function of the second kind
!      of order N of X.  This function is available under the name 'BESYN'
       as a GNU extension.  If N and X are arrays, their ranks and shapes
       shall conform.
  
!      'BESSEL_YN(N1, N2, X)' returns an array with the Bessel functions
       of the first kind of the orders N1 to N2.
  
  _Standard_:
*************** _Standard_:
*** 7683,7706 ****
  
  _Class_:
       Elemental function, except for the transformational function
!      `BESSEL_YN(N1, N2, X)'
  
  _Syntax_:
!      `RESULT = BESSEL_YN(N, X)'
!      `RESULT = BESSEL_YN(N1, N2, X)'
  
  _Arguments_:
!      N          Shall be a scalar or an array of type
!                 `INTEGER' .
!      N1         Shall be a non-negative scalar of type
!                 `INTEGER'.
!      N2         Shall be a non-negative scalar of type
!                 `INTEGER'.
!      X          Shall be a scalar or an array of type  `REAL';
!                 for `BESSEL_YN(N1, N2, X)' it shall be scalar.
  
  _Return value_:
!      The return value is a scalar of type `REAL'. It has the same kind
       as X.
  
  _Note_:
--- 7608,7631 ----
  
  _Class_:
       Elemental function, except for the transformational function
!      'BESSEL_YN(N1, N2, X)'
  
  _Syntax_:
!      'RESULT = BESSEL_YN(N, X)'
!      'RESULT = BESSEL_YN(N1, N2, X)'
  
  _Arguments_:
!      N           Shall be a scalar or an array of type 'INTEGER'
!                  .
!      N1          Shall be a non-negative scalar of type
!                  'INTEGER'.
!      N2          Shall be a non-negative scalar of type
!                  'INTEGER'.
!      X           Shall be a scalar or an array of type 'REAL';
!                  for 'BESSEL_YN(N1, N2, X)' it shall be scalar.
  
  _Return value_:
!      The return value is a scalar of type 'REAL'.  It has the same kind
       as X.
  
  _Note_:
*************** _Example_:
*** 7715,7728 ****
            end program test_besyn
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DBESYN(N,X)' `INTEGER N'   `REAL(8)'     GNU extension
!                    `REAL(8) X'                 
  
  
  File: gfortran.info,  Node: BGE,  Next: BGT,  Prev: BESSEL_YN,  Up: Intrinsic Procedures
  
! 9.42 `BGE' -- Bitwise greater than or equal to
  ==============================================
  
  _Description_:
--- 7640,7653 ----
            end program test_besyn
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DBESYN(N,X)'  'INTEGER N'    'REAL(8)'      GNU extension
!                     'REAL(8) X'
  
  
  File: gfortran.info,  Node: BGE,  Next: BGT,  Prev: BESSEL_YN,  Up: Intrinsic Procedures
  
! 9.42 'BGE' -- Bitwise greater than or equal to
  ==============================================
  
  _Description_:
*************** _Class_:
*** 7736,7750 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BGE(I, J)'
  
  _Arguments_:
!      I          Shall be of `INTEGER' type.
!      J          Shall be of `INTEGER' type, and of the same
!                 kind as I.
  
  _Return value_:
!      The return value is of type `LOGICAL' and of the default kind.
  
  _See also_:
       *note BGT::, *note BLE::, *note BLT::
--- 7661,7675 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BGE(I, J)'
  
  _Arguments_:
!      I           Shall be of 'INTEGER' type.
!      J           Shall be of 'INTEGER' type, and of the same kind
!                  as I.
  
  _Return value_:
!      The return value is of type 'LOGICAL' and of the default kind.
  
  _See also_:
       *note BGT::, *note BLE::, *note BLT::
*************** _See also_:
*** 7752,7758 ****
  
  File: gfortran.info,  Node: BGT,  Next: BIT_SIZE,  Prev: BGE,  Up: Intrinsic Procedures
  
! 9.43 `BGT' -- Bitwise greater than
  ==================================
  
  _Description_:
--- 7677,7683 ----
  
  File: gfortran.info,  Node: BGT,  Next: BIT_SIZE,  Prev: BGE,  Up: Intrinsic Procedures
  
! 9.43 'BGT' -- Bitwise greater than
  ==================================
  
  _Description_:
*************** _Class_:
*** 7765,7779 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BGT(I, J)'
  
  _Arguments_:
!      I          Shall be of `INTEGER' type.
!      J          Shall be of `INTEGER' type, and of the same
!                 kind as I.
  
  _Return value_:
!      The return value is of type `LOGICAL' and of the default kind.
  
  _See also_:
       *note BGE::, *note BLE::, *note BLT::
--- 7690,7704 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BGT(I, J)'
  
  _Arguments_:
!      I           Shall be of 'INTEGER' type.
!      J           Shall be of 'INTEGER' type, and of the same kind
!                  as I.
  
  _Return value_:
!      The return value is of type 'LOGICAL' and of the default kind.
  
  _See also_:
       *note BGE::, *note BLE::, *note BLT::
*************** _See also_:
*** 7781,7793 ****
  
  File: gfortran.info,  Node: BIT_SIZE,  Next: BLE,  Prev: BGT,  Up: Intrinsic Procedures
  
! 9.44 `BIT_SIZE' -- Bit size inquiry function
  ============================================
  
  _Description_:
!      `BIT_SIZE(I)' returns the number of bits (integer precision plus
       sign bit) represented by the type of I.  The result of
!      `BIT_SIZE(I)' is independent of the actual value of I.
  
  _Standard_:
       Fortran 95 and later
--- 7706,7718 ----
  
  File: gfortran.info,  Node: BIT_SIZE,  Next: BLE,  Prev: BGT,  Up: Intrinsic Procedures
  
! 9.44 'BIT_SIZE' -- Bit size inquiry function
  ============================================
  
  _Description_:
!      'BIT_SIZE(I)' returns the number of bits (integer precision plus
       sign bit) represented by the type of I.  The result of
!      'BIT_SIZE(I)' is independent of the actual value of I.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 7796,7808 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = BIT_SIZE(I)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER'
  
  _Example_:
            program test_bit_size
--- 7721,7733 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = BIT_SIZE(I)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER'
  
  _Example_:
            program test_bit_size
*************** _Example_:
*** 7815,7821 ****
  
  File: gfortran.info,  Node: BLE,  Next: BLT,  Prev: BIT_SIZE,  Up: Intrinsic Procedures
  
! 9.45 `BLE' -- Bitwise less than or equal to
  ===========================================
  
  _Description_:
--- 7740,7746 ----
  
  File: gfortran.info,  Node: BLE,  Next: BLT,  Prev: BIT_SIZE,  Up: Intrinsic Procedures
  
! 9.45 'BLE' -- Bitwise less than or equal to
  ===========================================
  
  _Description_:
*************** _Class_:
*** 7829,7843 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BLE(I, J)'
  
  _Arguments_:
!      I          Shall be of `INTEGER' type.
!      J          Shall be of `INTEGER' type, and of the same
!                 kind as I.
  
  _Return value_:
!      The return value is of type `LOGICAL' and of the default kind.
  
  _See also_:
       *note BGT::, *note BGE::, *note BLT::
--- 7754,7768 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BLE(I, J)'
  
  _Arguments_:
!      I           Shall be of 'INTEGER' type.
!      J           Shall be of 'INTEGER' type, and of the same kind
!                  as I.
  
  _Return value_:
!      The return value is of type 'LOGICAL' and of the default kind.
  
  _See also_:
       *note BGT::, *note BGE::, *note BLT::
*************** _See also_:
*** 7845,7851 ****
  
  File: gfortran.info,  Node: BLT,  Next: BTEST,  Prev: BLE,  Up: Intrinsic Procedures
  
! 9.46 `BLT' -- Bitwise less than
  ===============================
  
  _Description_:
--- 7770,7776 ----
  
  File: gfortran.info,  Node: BLT,  Next: BTEST,  Prev: BLE,  Up: Intrinsic Procedures
  
! 9.46 'BLT' -- Bitwise less than
  ===============================
  
  _Description_:
*************** _Class_:
*** 7858,7872 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BLT(I, J)'
  
  _Arguments_:
!      I          Shall be of `INTEGER' type.
!      J          Shall be of `INTEGER' type, and of the same
!                 kind as I.
  
  _Return value_:
!      The return value is of type `LOGICAL' and of the default kind.
  
  _See also_:
       *note BGE::, *note BGT::, *note BLE::
--- 7783,7797 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BLT(I, J)'
  
  _Arguments_:
!      I           Shall be of 'INTEGER' type.
!      J           Shall be of 'INTEGER' type, and of the same kind
!                  as I.
  
  _Return value_:
!      The return value is of type 'LOGICAL' and of the default kind.
  
  _See also_:
       *note BGE::, *note BGT::, *note BLE::
*************** _See also_:
*** 7874,7884 ****
  
  File: gfortran.info,  Node: BTEST,  Next: C_ASSOCIATED,  Prev: BLT,  Up: Intrinsic Procedures
  
! 9.47 `BTEST' -- Bit test function
  =================================
  
  _Description_:
!      `BTEST(I,POS)' returns logical `.TRUE.' if the bit at POS in I is
       set.  The counting of the bits starts at 0.
  
  _Standard_:
--- 7799,7809 ----
  
  File: gfortran.info,  Node: BTEST,  Next: C_ASSOCIATED,  Prev: BLT,  Up: Intrinsic Procedures
  
! 9.47 'BTEST' -- Bit test function
  =================================
  
  _Description_:
!      'BTEST(I,POS)' returns logical '.TRUE.' if the bit at POS in I is
       set.  The counting of the bits starts at 0.
  
  _Standard_:
*************** _Class_:
*** 7888,7901 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = BTEST(I, POS)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      POS        The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `LOGICAL'
  
  _Example_:
            program test_btest
--- 7813,7826 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = BTEST(I, POS)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      POS         The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'LOGICAL'
  
  _Example_:
            program test_btest
*************** _Example_:
*** 7911,7921 ****
  
  File: gfortran.info,  Node: C_ASSOCIATED,  Next: C_F_POINTER,  Prev: BTEST,  Up: Intrinsic Procedures
  
! 9.48 `C_ASSOCIATED' -- Status of a C pointer
  ============================================
  
  _Description_:
!      `C_ASSOCIATED(c_ptr_1[, c_ptr_2])' determines the status of the C
       pointer C_PTR_1 or if C_PTR_1 is associated with the target
       C_PTR_2.
  
--- 7836,7846 ----
  
  File: gfortran.info,  Node: C_ASSOCIATED,  Next: C_F_POINTER,  Prev: BTEST,  Up: Intrinsic Procedures
  
! 9.48 'C_ASSOCIATED' -- Status of a C pointer
  ============================================
  
  _Description_:
!      'C_ASSOCIATED(c_ptr_1[, c_ptr_2])' determines the status of the C
       pointer C_PTR_1 or if C_PTR_1 is associated with the target
       C_PTR_2.
  
*************** _Class_:
*** 7926,7939 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = C_ASSOCIATED(c_ptr_1[, c_ptr_2])'
  
  _Arguments_:
!      C_PTR_1    Scalar of the type `C_PTR' or `C_FUNPTR'.
!      C_PTR_2    (Optional) Scalar of the same type as C_PTR_1.
  
  _Return value_:
!      The return value is of type `LOGICAL'; it is `.false.' if either
       C_PTR_1 is a C NULL pointer or if C_PTR1 and C_PTR_2 point to
       different addresses.
  
--- 7851,7864 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = C_ASSOCIATED(c_ptr_1[, c_ptr_2])'
  
  _Arguments_:
!      C_PTR_1     Scalar of the type 'C_PTR' or 'C_FUNPTR'.
!      C_PTR_2     (Optional) Scalar of the same type as C_PTR_1.
  
  _Return value_:
!      The return value is of type 'LOGICAL'; it is '.false.' if either
       C_PTR_1 is a C NULL pointer or if C_PTR1 and C_PTR_2 point to
       different addresses.
  
*************** _See also_:
*** 7953,7963 ****
  
  File: gfortran.info,  Node: C_F_POINTER,  Next: C_F_PROCPOINTER,  Prev: C_ASSOCIATED,  Up: Intrinsic Procedures
  
! 9.49 `C_F_POINTER' -- Convert C into Fortran pointer
  ====================================================
  
  _Description_:
!      `C_F_POINTER(CPTR, FPTR[, SHAPE])' assigns the target of the C
       pointer CPTR to the Fortran pointer FPTR and specifies its shape.
  
  _Standard_:
--- 7878,7888 ----
  
  File: gfortran.info,  Node: C_F_POINTER,  Next: C_F_PROCPOINTER,  Prev: C_ASSOCIATED,  Up: Intrinsic Procedures
  
! 9.49 'C_F_POINTER' -- Convert C into Fortran pointer
  ====================================================
  
  _Description_:
!      'C_F_POINTER(CPTR, FPTR[, SHAPE])' assigns the target of the C
       pointer CPTR to the Fortran pointer FPTR and specifies its shape.
  
  _Standard_:
*************** _Class_:
*** 7967,7982 ****
       Subroutine
  
  _Syntax_:
!      `CALL C_F_POINTER(CPTR, FPTR[, SHAPE])'
  
  _Arguments_:
!      CPTR       scalar of the type `C_PTR'. It is `INTENT(IN)'.
!      FPTR       pointer interoperable with CPTR. It is
!                 `INTENT(OUT)'.
!      SHAPE      (Optional) Rank-one array of type `INTEGER'
!                 with `INTENT(IN)'. It shall be present if and
!                 only if FPTR is an array. The size must be
!                 equal to the rank of FPTR.
  
  _Example_:
            program main
--- 7892,7907 ----
       Subroutine
  
  _Syntax_:
!      'CALL C_F_POINTER(CPTR, FPTR[, SHAPE])'
  
  _Arguments_:
!      CPTR        scalar of the type 'C_PTR'.  It is 'INTENT(IN)'.
!      FPTR        pointer interoperable with CPTR.  It is
!                  'INTENT(OUT)'.
!      SHAPE       (Optional) Rank-one array of type 'INTEGER' with
!                  'INTENT(IN)'.  It shall be present if and only
!                  if FPTR is an array.  The size must be equal to
!                  the rank of FPTR.
  
  _Example_:
            program main
*************** _See also_:
*** 8000,8010 ****
  
  File: gfortran.info,  Node: C_F_PROCPOINTER,  Next: C_FUNLOC,  Prev: C_F_POINTER,  Up: Intrinsic Procedures
  
! 9.50 `C_F_PROCPOINTER' -- Convert C into Fortran procedure pointer
  ==================================================================
  
  _Description_:
!      `C_F_PROCPOINTER(CPTR, FPTR)' Assign the target of the C function
       pointer CPTR to the Fortran procedure pointer FPTR.
  
  _Standard_:
--- 7925,7935 ----
  
  File: gfortran.info,  Node: C_F_PROCPOINTER,  Next: C_FUNLOC,  Prev: C_F_POINTER,  Up: Intrinsic Procedures
  
! 9.50 'C_F_PROCPOINTER' -- Convert C into Fortran procedure pointer
  ==================================================================
  
  _Description_:
!      'C_F_PROCPOINTER(CPTR, FPTR)' Assign the target of the C function
       pointer CPTR to the Fortran procedure pointer FPTR.
  
  _Standard_:
*************** _Class_:
*** 8014,8026 ****
       Subroutine
  
  _Syntax_:
!      `CALL C_F_PROCPOINTER(cptr, fptr)'
  
  _Arguments_:
!      CPTR       scalar of the type `C_FUNPTR'. It is
!                 `INTENT(IN)'.
!      FPTR       procedure pointer interoperable with CPTR. It
!                 is `INTENT(OUT)'.
  
  _Example_:
            program main
--- 7939,7951 ----
       Subroutine
  
  _Syntax_:
!      'CALL C_F_PROCPOINTER(cptr, fptr)'
  
  _Arguments_:
!      CPTR        scalar of the type 'C_FUNPTR'.  It is
!                  'INTENT(IN)'.
!      FPTR        procedure pointer interoperable with CPTR.  It
!                  is 'INTENT(OUT)'.
  
  _Example_:
            program main
*************** _See also_:
*** 8051,8061 ****
  
  File: gfortran.info,  Node: C_FUNLOC,  Next: C_LOC,  Prev: C_F_PROCPOINTER,  Up: Intrinsic Procedures
  
! 9.51 `C_FUNLOC' -- Obtain the C address of a procedure
  ======================================================
  
  _Description_:
!      `C_FUNLOC(x)' determines the C address of the argument.
  
  _Standard_:
       Fortran 2003 and later
--- 7976,7986 ----
  
  File: gfortran.info,  Node: C_FUNLOC,  Next: C_LOC,  Prev: C_F_PROCPOINTER,  Up: Intrinsic Procedures
  
! 9.51 'C_FUNLOC' -- Obtain the C address of a procedure
  ======================================================
  
  _Description_:
!      'C_FUNLOC(x)' determines the C address of the argument.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 8064,8077 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = C_FUNLOC(x)'
  
  _Arguments_:
!      X          Interoperable function or pointer to such
!                 function.
  
  _Return value_:
!      The return value is of type `C_FUNPTR' and contains the C address
       of the argument.
  
  _Example_:
--- 7989,8002 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = C_FUNLOC(x)'
  
  _Arguments_:
!      X           Interoperable function or pointer to such
!                  function.
  
  _Return value_:
!      The return value is of type 'C_FUNPTR' and contains the C address
       of the argument.
  
  _Example_:
*************** _See also_:
*** 8104,8114 ****
  
  File: gfortran.info,  Node: C_LOC,  Next: C_SIZEOF,  Prev: C_FUNLOC,  Up: Intrinsic Procedures
  
! 9.52 `C_LOC' -- Obtain the C address of an object
  =================================================
  
  _Description_:
!      `C_LOC(X)' determines the C address of the argument.
  
  _Standard_:
       Fortran 2003 and later
--- 8029,8039 ----
  
  File: gfortran.info,  Node: C_LOC,  Next: C_SIZEOF,  Prev: C_FUNLOC,  Up: Intrinsic Procedures
  
! 9.52 'C_LOC' -- Obtain the C address of an object
  =================================================
  
  _Description_:
!      'C_LOC(X)' determines the C address of the argument.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 8117,8134 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = C_LOC(X)'
  
  _Arguments_:
!      X       Shall have either the POINTER or TARGET
!              attribute. It shall not be a coindexed object. It
!              shall either be a variable with interoperable
!              type and kind type parameters, or be a scalar,
!              nonpolymorphic variable with no length type
!              parameters.
  
  _Return value_:
!      The return value is of type `C_PTR' and contains the C address of
       the argument.
  
  _Example_:
--- 8042,8059 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = C_LOC(X)'
  
  _Arguments_:
!      X       Shall have either the POINTER or TARGET attribute.
!              It shall not be a coindexed object.  It shall either
!              be a variable with interoperable type and kind type
!              parameters, or be a scalar, nonpolymorphic variable
!              with no length type parameters.
!              
  
  _Return value_:
!      The return value is of type 'C_PTR' and contains the C address of
       the argument.
  
  _Example_:
*************** _See also_:
*** 8148,8180 ****
  
  File: gfortran.info,  Node: C_SIZEOF,  Next: CEILING,  Prev: C_LOC,  Up: Intrinsic Procedures
  
! 9.53 `C_SIZEOF' -- Size in bytes of an expression
  =================================================
  
  _Description_:
!      `C_SIZEOF(X)' calculates the number of bytes of storage the
!      expression `X' occupies.
  
  _Standard_:
       Fortran 2008
  
  _Class_:
!      Inquiry function of the module `ISO_C_BINDING'
  
  _Syntax_:
!      `N = C_SIZEOF(X)'
  
  _Arguments_:
!      X          The argument shall be an interoperable data
!                 entity.
  
  _Return value_:
       The return value is of type integer and of the system-dependent
!      kind `C_SIZE_T' (from the `ISO_C_BINDING' module). Its value is the
!      number of bytes occupied by the argument.  If the argument has the
!      `POINTER' attribute, the number of bytes of the storage area
       pointed to is returned.  If the argument is of a derived type with
!      `POINTER' or `ALLOCATABLE' components, the return value does not
       account for the sizes of the data pointed to by these components.
  
  _Example_:
--- 8073,8105 ----
  
  File: gfortran.info,  Node: C_SIZEOF,  Next: CEILING,  Prev: C_LOC,  Up: Intrinsic Procedures
  
! 9.53 'C_SIZEOF' -- Size in bytes of an expression
  =================================================
  
  _Description_:
!      'C_SIZEOF(X)' calculates the number of bytes of storage the
!      expression 'X' occupies.
  
  _Standard_:
       Fortran 2008
  
  _Class_:
!      Inquiry function of the module 'ISO_C_BINDING'
  
  _Syntax_:
!      'N = C_SIZEOF(X)'
  
  _Arguments_:
!      X           The argument shall be an interoperable data
!                  entity.
  
  _Return value_:
       The return value is of type integer and of the system-dependent
!      kind 'C_SIZE_T' (from the 'ISO_C_BINDING' module).  Its value is
!      the number of bytes occupied by the argument.  If the argument has
!      the 'POINTER' attribute, the number of bytes of the storage area
       pointed to is returned.  If the argument is of a derived type with
!      'POINTER' or 'ALLOCATABLE' components, the return value does not
       account for the sizes of the data pointed to by these components.
  
  _Example_:
*************** _Example_:
*** 8183,8190 ****
               real(c_float) :: r, s(5)
               print *, (c_sizeof(s)/c_sizeof(r) == 5)
               end
!      The example will print `.TRUE.' unless you are using a platform
!      where default `REAL' variables are unusually padded.
  
  _See also_:
       *note SIZEOF::, *note STORAGE_SIZE::
--- 8108,8115 ----
               real(c_float) :: r, s(5)
               print *, (c_sizeof(s)/c_sizeof(r) == 5)
               end
!      The example will print '.TRUE.' unless you are using a platform
!      where default 'REAL' variables are unusually padded.
  
  _See also_:
       *note SIZEOF::, *note STORAGE_SIZE::
*************** _See also_:
*** 8192,8202 ****
  
  File: gfortran.info,  Node: CEILING,  Next: CHAR,  Prev: C_SIZEOF,  Up: Intrinsic Procedures
  
! 9.54 `CEILING' -- Integer ceiling function
  ==========================================
  
  _Description_:
!      `CEILING(A)' returns the least integer greater than or equal to A.
  
  _Standard_:
       Fortran 95 and later
--- 8117,8127 ----
  
  File: gfortran.info,  Node: CEILING,  Next: CHAR,  Prev: C_SIZEOF,  Up: Intrinsic Procedures
  
! 9.54 'CEILING' -- Integer ceiling function
  ==========================================
  
  _Description_:
!      'CEILING(A)' returns the least integer greater than or equal to A.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 8205,8221 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = CEILING(A [, KIND])'
  
  _Arguments_:
!      A          The type shall be `REAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER(KIND)' if KIND is present and
!      a default-kind `INTEGER' otherwise.
  
  _Example_:
            program test_ceiling
--- 8130,8146 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = CEILING(A [, KIND])'
  
  _Arguments_:
!      A           The type shall be 'REAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER(KIND)' if KIND is present and
!      a default-kind 'INTEGER' otherwise.
  
  _Example_:
            program test_ceiling
*************** _Example_:
*** 8228,8243 ****
  _See also_:
       *note FLOOR::, *note NINT::
  
- 
  
  File: gfortran.info,  Node: CHAR,  Next: CHDIR,  Prev: CEILING,  Up: Intrinsic Procedures
  
! 9.55 `CHAR' -- Character conversion function
  ============================================
  
  _Description_:
!      `CHAR(I [, KIND])' returns the character represented by the
!      integer I.
  
  _Standard_:
       Fortran 77 and later
--- 8153,8167 ----
  _See also_:
       *note FLOOR::, *note NINT::
  
  
  File: gfortran.info,  Node: CHAR,  Next: CHDIR,  Prev: CEILING,  Up: Intrinsic Procedures
  
! 9.55 'CHAR' -- Character conversion function
  ============================================
  
  _Description_:
!      'CHAR(I [, KIND])' returns the character represented by the integer
!      I.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 8246,8261 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = CHAR(I [, KIND])'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `CHARACTER(1)'
  
  _Example_:
            program test_char
--- 8170,8185 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = CHAR(I [, KIND])'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'CHARACTER(1)'
  
  _Example_:
            program test_char
*************** _Example_:
*** 8266,8273 ****
            end program test_char
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `CHAR(I)'     `INTEGER I'   `CHARACTER(LEN=1)'F77 and later
  
  _Note_:
       See *note ICHAR:: for a discussion of converting between numerical
--- 8190,8197 ----
            end program test_char
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'CHAR(I)'      'INTEGER I'    'CHARACTER(LEN=1)'F77 and later
  
  _Note_:
       See *note ICHAR:: for a discussion of converting between numerical
*************** _Note_:
*** 8276,8286 ****
  _See also_:
       *note ACHAR::, *note IACHAR::, *note ICHAR::
  
- 
  
  File: gfortran.info,  Node: CHDIR,  Next: CHMOD,  Prev: CHAR,  Up: Intrinsic Procedures
  
! 9.56 `CHDIR' -- Change working directory
  ========================================
  
  _Description_:
--- 8200,8209 ----
  _See also_:
       *note ACHAR::, *note IACHAR::, *note ICHAR::
  
  
  File: gfortran.info,  Node: CHDIR,  Next: CHMOD,  Prev: CHAR,  Up: Intrinsic Procedures
  
! 9.56 'CHDIR' -- Change working directory
  ========================================
  
  _Description_:
*************** _Class_:
*** 8296,8311 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL CHDIR(NAME [, STATUS])'
!      `STATUS = CHDIR(NAME)'
  
  _Arguments_:
!      NAME       The type shall be `CHARACTER' of default kind
!                 and shall specify a valid path within the file
!                 system.
!      STATUS     (Optional) `INTEGER' status flag of the default
!                 kind.  Returns 0 on success, and a system
!                 specific and nonzero error code otherwise.
  
  _Example_:
            PROGRAM test_chdir
--- 8219,8234 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL CHDIR(NAME [, STATUS])'
!      'STATUS = CHDIR(NAME)'
  
  _Arguments_:
!      NAME        The type shall be 'CHARACTER' of default kind
!                  and shall specify a valid path within the file
!                  system.
!      STATUS      (Optional) 'INTEGER' status flag of the default
!                  kind.  Returns 0 on success, and a system
!                  specific and nonzero error code otherwise.
  
  _Example_:
            PROGRAM test_chdir
*************** _See also_:
*** 8323,8333 ****
  
  File: gfortran.info,  Node: CHMOD,  Next: CMPLX,  Prev: CHDIR,  Up: Intrinsic Procedures
  
! 9.57 `CHMOD' -- Change access permissions of files
  ==================================================
  
  _Description_:
!      `CHMOD' changes the permissions of a file.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 8246,8256 ----
  
  File: gfortran.info,  Node: CHMOD,  Next: CMPLX,  Prev: CHDIR,  Up: Intrinsic Procedures
  
! 9.57 'CHMOD' -- Change access permissions of files
  ==================================================
  
  _Description_:
!      'CHMOD' changes the permissions of a file.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 8339,8375 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL CHMOD(NAME, MODE[, STATUS])'
!      `STATUS = CHMOD(NAME, MODE)'
  
  _Arguments_:
!      NAME       Scalar `CHARACTER' of default kind with the
!                 file name. Trailing blanks are ignored unless
!                 the character `achar(0)' is present, then all
!                 characters up to and excluding `achar(0)' are
!                 used as the file name.
!      MODE       Scalar `CHARACTER' of default kind giving the
!                 file permission. MODE uses the same syntax as
!                 the `chmod' utility as defined by the POSIX
!                 standard. The argument shall either be a
!                 string of a nonnegative octal number or a
!                 symbolic mode.
!      STATUS     (optional) scalar `INTEGER', which is `0' on
!                 success and nonzero otherwise.
  
  _Return value_:
!      In either syntax, STATUS is set to `0' on success and nonzero
       otherwise.
  
  _Example_:
!      `CHMOD' as subroutine
            program chmod_test
              implicit none
              integer :: status
              call chmod('test.dat','u+x',status)
              print *, 'Status: ', status
            end program chmod_test
!      `CHMOD' as function:
            program chmod_test
              implicit none
              integer :: status
--- 8262,8301 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL CHMOD(NAME, MODE[, STATUS])'
!      'STATUS = CHMOD(NAME, MODE)'
  
  _Arguments_:
! 
!      NAME        Scalar 'CHARACTER' of default kind with the file
!                  name.  Trailing blanks are ignored unless the
!                  character 'achar(0)' is present, then all
!                  characters up to and excluding 'achar(0)' are
!                  used as the file name.
!                  
!      MODE        Scalar 'CHARACTER' of default kind giving the
!                  file permission.  MODE uses the same syntax as
!                  the 'chmod' utility as defined by the POSIX
!                  standard.  The argument shall either be a string
!                  of a nonnegative octal number or a symbolic
!                  mode.
!                  
!      STATUS      (optional) scalar 'INTEGER', which is '0' on
!                  success and nonzero otherwise.
  
  _Return value_:
!      In either syntax, STATUS is set to '0' on success and nonzero
       otherwise.
  
  _Example_:
!      'CHMOD' as subroutine
            program chmod_test
              implicit none
              integer :: status
              call chmod('test.dat','u+x',status)
              print *, 'Status: ', status
            end program chmod_test
!      'CHMOD' as function:
            program chmod_test
              implicit none
              integer :: status
*************** _Example_:
*** 8377,8395 ****
              print *, 'Status: ', status
            end program chmod_test
  
- 
  
  File: gfortran.info,  Node: CMPLX,  Next: CO_BROADCAST,  Prev: CHMOD,  Up: Intrinsic Procedures
  
! 9.58 `CMPLX' -- Complex conversion function
  ===========================================
  
  _Description_:
!      `CMPLX(X [, Y [, KIND]])' returns a complex number where X is
       converted to the real component.  If Y is present it is converted
!      to the imaginary component.  If Y is not present then the
!      imaginary component is set to 0.0.  If X is complex then Y must
!      not be present.
  
  _Standard_:
       Fortran 77 and later
--- 8303,8320 ----
              print *, 'Status: ', status
            end program chmod_test
  
  
  File: gfortran.info,  Node: CMPLX,  Next: CO_BROADCAST,  Prev: CHMOD,  Up: Intrinsic Procedures
  
! 9.58 'CMPLX' -- Complex conversion function
  ===========================================
  
  _Description_:
!      'CMPLX(X [, Y [, KIND]])' returns a complex number where X is
       converted to the real component.  If Y is present it is converted
!      to the imaginary component.  If Y is not present then the imaginary
!      component is set to 0.0.  If X is complex then Y must not be
!      present.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 8398,8418 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = CMPLX(X [, Y [, KIND]])'
  
  _Arguments_:
!      X          The type may be `INTEGER', `REAL', or
!                 `COMPLEX'.
!      Y          (Optional; only allowed if X is not
!                 `COMPLEX'.)  May be `INTEGER' or `REAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of `COMPLEX' type, with a kind equal to KIND
!      if it is specified.  If KIND is not specified, the result is of
!      the default `COMPLEX' kind, regardless of the kinds of X and Y.
  
  _Example_:
            program test_cmplx
--- 8323,8342 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = CMPLX(X [, Y [, KIND]])'
  
  _Arguments_:
!      X           The type may be 'INTEGER', 'REAL', or 'COMPLEX'.
!      Y           (Optional; only allowed if X is not 'COMPLEX'.)
!                  May be 'INTEGER' or 'REAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of 'COMPLEX' type, with a kind equal to KIND if
!      it is specified.  If KIND is not specified, the result is of the
!      default 'COMPLEX' kind, regardless of the kinds of X and Y.
  
  _Example_:
            program test_cmplx
*************** _See also_:
*** 8429,8444 ****
  
  File: gfortran.info,  Node: CO_BROADCAST,  Next: CO_MAX,  Prev: CMPLX,  Up: Intrinsic Procedures
  
! 9.59 `CO_BROADCAST' -- Copy a value to all images the current set of images
  ===========================================================================
  
  _Description_:
!      `CO_BROADCAST' copies the value of argument A on the image with
!      image index `SOURCE_IMAGE' to all images in the current team.  A
       becomes defined as if by intrinsic assignment.  If the execution
       was successful and STAT is present, it is assigned the value zero.
!      If the execution failed, STAT gets assigned a nonzero value and,
!      if present, ERRMSG gets assigned a value describing the occurred
       error.
  
  _Standard_:
--- 8353,8368 ----
  
  File: gfortran.info,  Node: CO_BROADCAST,  Next: CO_MAX,  Prev: CMPLX,  Up: Intrinsic Procedures
  
! 9.59 'CO_BROADCAST' -- Copy a value to all images the current set of images
  ===========================================================================
  
  _Description_:
!      'CO_BROADCAST' copies the value of argument A on the image with
!      image index 'SOURCE_IMAGE' to all images in the current team.  A
       becomes defined as if by intrinsic assignment.  If the execution
       was successful and STAT is present, it is assigned the value zero.
!      If the execution failed, STAT gets assigned a nonzero value and, if
!      present, ERRMSG gets assigned a value describing the occurred
       error.
  
  _Standard_:
*************** _Class_:
*** 8448,8465 ****
       Collective subroutine
  
  _Syntax_:
!      `CALL CO_BROADCAST(A, SOURCE_IMAGE [, STAT, ERRMSG])'
  
  _Arguments_:
!      A          INTENT(INOUT) argument; shall have the same
!                 dynamic type and type paramters on all images
!                 of the current team. If it is an array, it
!                 shall have the same shape on all images.
!      SOURCE_IMAGEa scalar integer expression.  It shall have
!                 the same the same value on all images and
!                 refer to an image of the current team.
!      STAT       (optional) a scalar integer variable
!      ERRMSG     (optional) a scalar character variable
  
  _Example_:
            program test
--- 8372,8389 ----
       Collective subroutine
  
  _Syntax_:
!      'CALL CO_BROADCAST(A, SOURCE_IMAGE [, STAT, ERRMSG])'
  
  _Arguments_:
!      A           INTENT(INOUT) argument; shall have the same
!                  dynamic type and type paramters on all images of
!                  the current team.  If it is an array, it shall
!                  have the same shape on all images.
!      SOURCE_IMAGEa scalar integer expression.  It shall have the
!                  same the same value on all images and refer to
!                  an image of the current team.
!      STAT        (optional) a scalar integer variable
!      ERRMSG      (optional) a scalar character variable
  
  _Example_:
            program test
*************** _See also_:
*** 8477,8495 ****
  
  File: gfortran.info,  Node: CO_MAX,  Next: CO_MIN,  Prev: CO_BROADCAST,  Up: Intrinsic Procedures
  
! 9.60 `CO_MAX' -- Maximal value on the current set of images
  ===========================================================
  
  _Description_:
!      `CO_MAX' determines element-wise the maximal value of A on all
       images of the current team.  If RESULT_IMAGE is present, the
       maximum values are returned in A on the specified image only and
       the value of A on the other images become undefined.  If
       RESULT_IMAGE is not present, the value is returned on all images.
!      If the execution was successful and STAT is present, it is
!      assigned the value zero.  If the execution failed, STAT gets
!      assigned a nonzero value and, if present, ERRMSG gets assigned a
!      value describing the occurred error.
  
  _Standard_:
       Technical Specification (TS) 18508 or later
--- 8401,8419 ----
  
  File: gfortran.info,  Node: CO_MAX,  Next: CO_MIN,  Prev: CO_BROADCAST,  Up: Intrinsic Procedures
  
! 9.60 'CO_MAX' -- Maximal value on the current set of images
  ===========================================================
  
  _Description_:
!      'CO_MAX' determines element-wise the maximal value of A on all
       images of the current team.  If RESULT_IMAGE is present, the
       maximum values are returned in A on the specified image only and
       the value of A on the other images become undefined.  If
       RESULT_IMAGE is not present, the value is returned on all images.
!      If the execution was successful and STAT is present, it is assigned
!      the value zero.  If the execution failed, STAT gets assigned a
!      nonzero value and, if present, ERRMSG gets assigned a value
!      describing the occurred error.
  
  _Standard_:
       Technical Specification (TS) 18508 or later
*************** _Class_:
*** 8498,8515 ****
       Collective subroutine
  
  _Syntax_:
!      `CALL CO_MAX(A [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A          shall be an integer, real or character
!                 variable, which has the same type and type
!                 parameters on all images of the team.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                 present, it shall have the same the same value
!                 on all images and refer to an image of the
!                 current team.
!      STAT       (optional) a scalar integer variable
!      ERRMSG     (optional) a scalar character variable
  
  _Example_:
            program test
--- 8422,8439 ----
       Collective subroutine
  
  _Syntax_:
!      'CALL CO_MAX(A [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A           shall be an integer, real or character variable,
!                  which has the same type and type parameters on
!                  all images of the team.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                  present, it shall have the same the same value
!                  on all images and refer to an image of the
!                  current team.
!      STAT        (optional) a scalar integer variable
!      ERRMSG      (optional) a scalar character variable
  
  _Example_:
            program test
*************** _See also_:
*** 8528,8546 ****
  
  File: gfortran.info,  Node: CO_MIN,  Next: CO_REDUCE,  Prev: CO_MAX,  Up: Intrinsic Procedures
  
! 9.61 `CO_MIN' -- Minimal value on the current set of images
  ===========================================================
  
  _Description_:
!      `CO_MIN' determines element-wise the minimal value of A on all
       images of the current team.  If RESULT_IMAGE is present, the
       minimal values are returned in A on the specified image only and
       the value of A on the other images become undefined.  If
       RESULT_IMAGE is not present, the value is returned on all images.
!      If the execution was successful and STAT is present, it is
!      assigned the value zero.  If the execution failed, STAT gets
!      assigned a nonzero value and, if present, ERRMSG gets assigned a
!      value describing the occurred error.
  
  _Standard_:
       Technical Specification (TS) 18508 or later
--- 8452,8470 ----
  
  File: gfortran.info,  Node: CO_MIN,  Next: CO_REDUCE,  Prev: CO_MAX,  Up: Intrinsic Procedures
  
! 9.61 'CO_MIN' -- Minimal value on the current set of images
  ===========================================================
  
  _Description_:
!      'CO_MIN' determines element-wise the minimal value of A on all
       images of the current team.  If RESULT_IMAGE is present, the
       minimal values are returned in A on the specified image only and
       the value of A on the other images become undefined.  If
       RESULT_IMAGE is not present, the value is returned on all images.
!      If the execution was successful and STAT is present, it is assigned
!      the value zero.  If the execution failed, STAT gets assigned a
!      nonzero value and, if present, ERRMSG gets assigned a value
!      describing the occurred error.
  
  _Standard_:
       Technical Specification (TS) 18508 or later
*************** _Class_:
*** 8549,8566 ****
       Collective subroutine
  
  _Syntax_:
!      `CALL CO_MIN(A [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A          shall be an integer, real or character
!                 variable, which has the same type and type
!                 parameters on all images of the team.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                 present, it shall have the same the same value
!                 on all images and refer to an image of the
!                 current team.
!      STAT       (optional) a scalar integer variable
!      ERRMSG     (optional) a scalar character variable
  
  _Example_:
            program test
--- 8473,8490 ----
       Collective subroutine
  
  _Syntax_:
!      'CALL CO_MIN(A [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A           shall be an integer, real or character variable,
!                  which has the same type and type parameters on
!                  all images of the team.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                  present, it shall have the same the same value
!                  on all images and refer to an image of the
!                  current team.
!      STAT        (optional) a scalar integer variable
!      ERRMSG      (optional) a scalar character variable
  
  _Example_:
            program test
*************** _See also_:
*** 8579,8600 ****
  
  File: gfortran.info,  Node: CO_REDUCE,  Next: CO_SUM,  Prev: CO_MIN,  Up: Intrinsic Procedures
  
! 9.62 `CO_REDUCE' -- Reduction of values on the current set of images
  ====================================================================
  
  _Description_:
!      `CO_REDUCE' determines element-wise the reduction of the value of A
       on all images of the current team.  The pure function passed as
       OPERATOR is used to pairwise reduce the values of A by passing
       either the value of A of different images or the result values of
       such a reduction as argument.  If A is an array, the deduction is
!      done element wise. If RESULT_IMAGE is present, the result values
!      are returned in A on the specified image only and the value of A
!      on the other images become undefined.  If RESULT_IMAGE is not
!      present, the value is returned on all images.  If the execution
!      was successful and STAT is present, it is assigned the value zero.
!      If the execution failed, STAT gets assigned a nonzero value and,
!      if present, ERRMSG gets assigned a value describing the occurred
       error.
  
  _Standard_:
--- 8503,8524 ----
  
  File: gfortran.info,  Node: CO_REDUCE,  Next: CO_SUM,  Prev: CO_MIN,  Up: Intrinsic Procedures
  
! 9.62 'CO_REDUCE' -- Reduction of values on the current set of images
  ====================================================================
  
  _Description_:
!      'CO_REDUCE' determines element-wise the reduction of the value of A
       on all images of the current team.  The pure function passed as
       OPERATOR is used to pairwise reduce the values of A by passing
       either the value of A of different images or the result values of
       such a reduction as argument.  If A is an array, the deduction is
!      done element wise.  If RESULT_IMAGE is present, the result values
!      are returned in A on the specified image only and the value of A on
!      the other images become undefined.  If RESULT_IMAGE is not present,
!      the value is returned on all images.  If the execution was
!      successful and STAT is present, it is assigned the value zero.  If
!      the execution failed, STAT gets assigned a nonzero value and, if
!      present, ERRMSG gets assigned a value describing the occurred
       error.
  
  _Standard_:
*************** _Class_:
*** 8604,8635 ****
       Collective subroutine
  
  _Syntax_:
!      `CALL CO_REDUCE(A, OPERATOR, [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A          is an `INTENT(INOUT)' argument and shall be
!                 nonpolymorphic. If it is allocatable, it shall
!                 be allocated; if it is a pointer, it shall be
!                 associated.  A shall have the same type and
!                 type parameters on all images of the team; if
!                 it is an array, it shall have the same shape
!                 on all images.
!      OPERATOR   pure function with two scalar nonallocatable
!                 arguments, which shall be nonpolymorphic and
!                 have the same type and type parameters as A.
!                 The function shall return a nonallocatable
!                 scalar of the same type and type parameters as
!                 A.  The function shall be the same on all
!                 images and with regards to the arguments
!                 mathematically commutative and associative.
!                 Note that OPERATOR may not be an elemental
!                 function, unless it is an intrisic function.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                 present, it shall have the same the same value
!                 on all images and refer to an image of the
!                 current team.
!      STAT       (optional) a scalar integer variable
!      ERRMSG     (optional) a scalar character variable
  
  _Example_:
            program test
--- 8528,8559 ----
       Collective subroutine
  
  _Syntax_:
!      'CALL CO_REDUCE(A, OPERATOR, [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A           is an 'INTENT(INOUT)' argument and shall be
!                  nonpolymorphic.  If it is allocatable, it shall
!                  be allocated; if it is a pointer, it shall be
!                  associated.  A shall have the same type and type
!                  parameters on all images of the team; if it is
!                  an array, it shall have the same shape on all
!                  images.
!      OPERATOR    pure function with two scalar nonallocatable
!                  arguments, which shall be nonpolymorphic and
!                  have the same type and type parameters as A.
!                  The function shall return a nonallocatable
!                  scalar of the same type and type parameters as
!                  A.  The function shall be the same on all images
!                  and with regards to the arguments mathematically
!                  commutative and associative.  Note that OPERATOR
!                  may not be an elemental function, unless it is
!                  an intrisic function.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                  present, it shall have the same the same value
!                  on all images and refer to an image of the
!                  current team.
!      STAT        (optional) a scalar integer variable
!      ERRMSG      (optional) a scalar character variable
  
  _Example_:
            program test
*************** _See also_:
*** 8660,8674 ****
  
  File: gfortran.info,  Node: CO_SUM,  Next: COMMAND_ARGUMENT_COUNT,  Prev: CO_REDUCE,  Up: Intrinsic Procedures
  
! 9.63 `CO_SUM' -- Sum of values on the current set of images
  ===========================================================
  
  _Description_:
!      `CO_SUM' sums up the values of each element of A on all images of
!      the current team.  If RESULT_IMAGE is present, the summed-up
!      values are returned in A on the specified image only and the value
!      of A on the other images become undefined.  If RESULT_IMAGE is not
!      present, the value is returned on all images.  If the execution was
       successful and STAT is present, it is assigned the value zero.  If
       the execution failed, STAT gets assigned a nonzero value and, if
       present, ERRMSG gets assigned a value describing the occurred
--- 8584,8598 ----
  
  File: gfortran.info,  Node: CO_SUM,  Next: COMMAND_ARGUMENT_COUNT,  Prev: CO_REDUCE,  Up: Intrinsic Procedures
  
! 9.63 'CO_SUM' -- Sum of values on the current set of images
  ===========================================================
  
  _Description_:
!      'CO_SUM' sums up the values of each element of A on all images of
!      the current team.  If RESULT_IMAGE is present, the summed-up values
!      are returned in A on the specified image only and the value of A on
!      the other images become undefined.  If RESULT_IMAGE is not present,
!      the value is returned on all images.  If the execution was
       successful and STAT is present, it is assigned the value zero.  If
       the execution failed, STAT gets assigned a nonzero value and, if
       present, ERRMSG gets assigned a value describing the occurred
*************** _Class_:
*** 8681,8698 ****
       Collective subroutine
  
  _Syntax_:
!      `CALL CO_MIN(A [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A          shall be an integer, real or complex variable,
!                 which has the same type and type parameters on
!                 all images of the team.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                 present, it shall have the same the same value
!                 on all images and refer to an image of the
!                 current team.
!      STAT       (optional) a scalar integer variable
!      ERRMSG     (optional) a scalar character variable
  
  _Example_:
            program test
--- 8605,8622 ----
       Collective subroutine
  
  _Syntax_:
!      'CALL CO_MIN(A [, RESULT_IMAGE, STAT, ERRMSG])'
  
  _Arguments_:
!      A           shall be an integer, real or complex variable,
!                  which has the same type and type parameters on
!                  all images of the team.
       RESULT_IMAGE(optional) a scalar integer expression; if
!                  present, it shall have the same the same value
!                  on all images and refer to an image of the
!                  current team.
!      STAT        (optional) a scalar integer variable
!      ERRMSG      (optional) a scalar character variable
  
  _Example_:
            program test
*************** _See also_:
*** 8711,8721 ****
  
  File: gfortran.info,  Node: COMMAND_ARGUMENT_COUNT,  Next: COMPILER_OPTIONS,  Prev: CO_SUM,  Up: Intrinsic Procedures
  
! 9.64 `COMMAND_ARGUMENT_COUNT' -- Get number of command line arguments
  =====================================================================
  
  _Description_:
!      `COMMAND_ARGUMENT_COUNT' returns the number of arguments passed on
       the command line when the containing program was invoked.
  
  _Standard_:
--- 8635,8645 ----
  
  File: gfortran.info,  Node: COMMAND_ARGUMENT_COUNT,  Next: COMPILER_OPTIONS,  Prev: CO_SUM,  Up: Intrinsic Procedures
  
! 9.64 'COMMAND_ARGUMENT_COUNT' -- Get number of command line arguments
  =====================================================================
  
  _Description_:
!      'COMMAND_ARGUMENT_COUNT' returns the number of arguments passed on
       the command line when the containing program was invoked.
  
  _Standard_:
*************** _Class_:
*** 8725,8737 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = COMMAND_ARGUMENT_COUNT()'
  
  _Arguments_:
!      None       
  
  _Return value_:
!      The return value is an `INTEGER' of default kind.
  
  _Example_:
            program test_command_argument_count
--- 8649,8661 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = COMMAND_ARGUMENT_COUNT()'
  
  _Arguments_:
!      None
  
  _Return value_:
!      The return value is an 'INTEGER' of default kind.
  
  _Example_:
            program test_command_argument_count
*************** _See also_:
*** 8746,8766 ****
  
  File: gfortran.info,  Node: COMPILER_OPTIONS,  Next: COMPILER_VERSION,  Prev: COMMAND_ARGUMENT_COUNT,  Up: Intrinsic Procedures
  
! 9.65 `COMPILER_OPTIONS' -- Options passed to the compiler
  =========================================================
  
  _Description_:
!      `COMPILER_OPTIONS' returns a string with the options used for
       compiling.
  
  _Standard_:
       Fortran 2008
  
  _Class_:
!      Inquiry function of the module `ISO_FORTRAN_ENV'
  
  _Syntax_:
!      `STR = COMPILER_OPTIONS()'
  
  _Arguments_:
       None.
--- 8670,8690 ----
  
  File: gfortran.info,  Node: COMPILER_OPTIONS,  Next: COMPILER_VERSION,  Prev: COMMAND_ARGUMENT_COUNT,  Up: Intrinsic Procedures
  
! 9.65 'COMPILER_OPTIONS' -- Options passed to the compiler
  =========================================================
  
  _Description_:
!      'COMPILER_OPTIONS' returns a string with the options used for
       compiling.
  
  _Standard_:
       Fortran 2008
  
  _Class_:
!      Inquiry function of the module 'ISO_FORTRAN_ENV'
  
  _Syntax_:
!      'STR = COMPILER_OPTIONS()'
  
  _Arguments_:
       None.
*************** _Arguments_:
*** 8768,8774 ****
  _Return value_:
       The return value is a default-kind string with system-dependent
       length.  It contains the compiler flags used to compile the file,
!      which called the `COMPILER_OPTIONS' intrinsic.
  
  _Example_:
               use iso_fortran_env
--- 8692,8698 ----
  _Return value_:
       The return value is a default-kind string with system-dependent
       length.  It contains the compiler flags used to compile the file,
!      which called the 'COMPILER_OPTIONS' intrinsic.
  
  _Example_:
               use iso_fortran_env
*************** _See also_:
*** 8783,8803 ****
  
  File: gfortran.info,  Node: COMPILER_VERSION,  Next: COMPLEX,  Prev: COMPILER_OPTIONS,  Up: Intrinsic Procedures
  
! 9.66 `COMPILER_VERSION' -- Compiler version string
  ==================================================
  
  _Description_:
!      `COMPILER_VERSION' returns a string with the name and the version
       of the compiler.
  
  _Standard_:
       Fortran 2008
  
  _Class_:
!      Inquiry function of the module `ISO_FORTRAN_ENV'
  
  _Syntax_:
!      `STR = COMPILER_VERSION()'
  
  _Arguments_:
       None.
--- 8707,8727 ----
  
  File: gfortran.info,  Node: COMPILER_VERSION,  Next: COMPLEX,  Prev: COMPILER_OPTIONS,  Up: Intrinsic Procedures
  
! 9.66 'COMPILER_VERSION' -- Compiler version string
  ==================================================
  
  _Description_:
!      'COMPILER_VERSION' returns a string with the name and the version
       of the compiler.
  
  _Standard_:
       Fortran 2008
  
  _Class_:
!      Inquiry function of the module 'ISO_FORTRAN_ENV'
  
  _Syntax_:
!      'STR = COMPILER_VERSION()'
  
  _Arguments_:
       None.
*************** _See also_:
*** 8820,8830 ****
  
  File: gfortran.info,  Node: COMPLEX,  Next: CONJG,  Prev: COMPILER_VERSION,  Up: Intrinsic Procedures
  
! 9.67 `COMPLEX' -- Complex conversion function
  =============================================
  
  _Description_:
!      `COMPLEX(X, Y)' returns a complex number where X is converted to
       the real component and Y is converted to the imaginary component.
  
  _Standard_:
--- 8744,8754 ----
  
  File: gfortran.info,  Node: COMPLEX,  Next: CONJG,  Prev: COMPILER_VERSION,  Up: Intrinsic Procedures
  
! 9.67 'COMPLEX' -- Complex conversion function
  =============================================
  
  _Description_:
!      'COMPLEX(X, Y)' returns a complex number where X is converted to
       the real component and Y is converted to the imaginary component.
  
  _Standard_:
*************** _Class_:
*** 8834,8852 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = COMPLEX(X, Y)'
  
  _Arguments_:
!      X          The type may be `INTEGER' or `REAL'.
!      Y          The type may be `INTEGER' or `REAL'.
  
  _Return value_:
!      If X and Y are both of `INTEGER' type, then the return value is of
!      default `COMPLEX' type.
  
!      If X and Y are of `REAL' type, or one is of `REAL' type and one is
!      of `INTEGER' type, then the return value is of `COMPLEX' type with
!      a kind equal to that of the `REAL' argument with the highest
       precision.
  
  _Example_:
--- 8758,8776 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = COMPLEX(X, Y)'
  
  _Arguments_:
!      X           The type may be 'INTEGER' or 'REAL'.
!      Y           The type may be 'INTEGER' or 'REAL'.
  
  _Return value_:
!      If X and Y are both of 'INTEGER' type, then the return value is of
!      default 'COMPLEX' type.
  
!      If X and Y are of 'REAL' type, or one is of 'REAL' type and one is
!      of 'INTEGER' type, then the return value is of 'COMPLEX' type with
!      a kind equal to that of the 'REAL' argument with the highest
       precision.
  
  _Example_:
*************** _See also_:
*** 8862,8873 ****
  
  File: gfortran.info,  Node: CONJG,  Next: COS,  Prev: COMPLEX,  Up: Intrinsic Procedures
  
! 9.68 `CONJG' -- Complex conjugate function
  ==========================================
  
  _Description_:
!      `CONJG(Z)' returns the conjugate of Z.  If Z is `(x, y)' then the
!      result is `(x, -y)'
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
--- 8786,8797 ----
  
  File: gfortran.info,  Node: CONJG,  Next: COS,  Prev: COMPLEX,  Up: Intrinsic Procedures
  
! 9.68 'CONJG' -- Complex conjugate function
  ==========================================
  
  _Description_:
!      'CONJG(Z)' returns the conjugate of Z.  If Z is '(x, y)' then the
!      result is '(x, -y)'
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
*************** _Class_:
*** 8876,8888 ****
       Elemental function
  
  _Syntax_:
!      `Z = CONJG(Z)'
  
  _Arguments_:
!      Z          The type shall be `COMPLEX'.
  
  _Return value_:
!      The return value is of type `COMPLEX'.
  
  _Example_:
            program test_conjg
--- 8800,8812 ----
       Elemental function
  
  _Syntax_:
!      'Z = CONJG(Z)'
  
  _Arguments_:
!      Z           The type shall be 'COMPLEX'.
  
  _Return value_:
!      The return value is of type 'COMPLEX'.
  
  _Example_:
            program test_conjg
*************** _Example_:
*** 8895,8913 ****
            end program test_conjg
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `CONJG(Z)'    `COMPLEX Z'   `COMPLEX'     GNU extension
!      `DCONJG(Z)'   `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    Z'                          
  
  
  File: gfortran.info,  Node: COS,  Next: COSH,  Prev: CONJG,  Up: Intrinsic Procedures
  
! 9.69 `COS' -- Cosine function
  =============================
  
  _Description_:
!      `COS(X)' computes the cosine of X.
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
--- 8819,8837 ----
            end program test_conjg
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'CONJG(Z)'     'COMPLEX Z'    'COMPLEX'      GNU extension
!      'DCONJG(Z)'    'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     Z'
  
  
  File: gfortran.info,  Node: COS,  Next: COSH,  Prev: CONJG,  Up: Intrinsic Procedures
  
! 9.69 'COS' -- Cosine function
  =============================
  
  _Description_:
!      'COS(X)' computes the cosine of X.
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
*************** _Class_:
*** 8916,8930 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = COS(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value is of the same type and kind as X. The real part
!      of the result is in radians. If X is of the type `REAL', the
!      return value lies in the range  -1 \leq \cos (x) \leq 1.
  
  _Example_:
            program test_cos
--- 8840,8854 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = COS(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value is of the same type and kind as X.  The real part
!      of the result is in radians.  If X is of the type 'REAL', the
!      return value lies in the range -1 \leq \cos (x) \leq 1.
  
  _Example_:
            program test_cos
*************** _Example_:
*** 8933,8962 ****
            end program test_cos
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `COS(X)'      `REAL(4) X'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DCOS(X)'     `REAL(8) X'   `REAL(8)'     Fortran 77 and
!                                                later
!      `CCOS(X)'     `COMPLEX(4)   `COMPLEX(4)'  Fortran 77 and
!                    X'                          later
!      `ZCOS(X)'     `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    X'                          
!      `CDCOS(X)'    `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    X'                          
  
  _See also_:
       Inverse function: *note ACOS::
  
- 
  
  File: gfortran.info,  Node: COSH,  Next: COUNT,  Prev: COS,  Up: Intrinsic Procedures
  
! 9.70 `COSH' -- Hyperbolic cosine function
  =========================================
  
  _Description_:
!      `COSH(X)' computes the hyperbolic cosine of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
--- 8857,8885 ----
            end program test_cos
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'COS(X)'       'REAL(4) X'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DCOS(X)'      'REAL(8) X'    'REAL(8)'      Fortran 77 and
!                                                   later
!      'CCOS(X)'      'COMPLEX(4)    'COMPLEX(4)'   Fortran 77 and
!                     X'                            later
!      'ZCOS(X)'      'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     X'
!      'CDCOS(X)'     'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     X'
  
  _See also_:
       Inverse function: *note ACOS::
  
  
  File: gfortran.info,  Node: COSH,  Next: COUNT,  Prev: COS,  Up: Intrinsic Procedures
  
! 9.70 'COSH' -- Hyperbolic cosine function
  =========================================
  
  _Description_:
!      'COSH(X)' computes the hyperbolic cosine of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
*************** _Class_:
*** 8965,8978 ****
       Elemental function
  
  _Syntax_:
!      `X = COSH(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value has same type and kind as X. If X is complex, the
!      imaginary part of the result is in radians. If X is `REAL', the
       return value has a lower bound of one, \cosh (x) \geq 1.
  
  _Example_:
--- 8888,8901 ----
       Elemental function
  
  _Syntax_:
!      'X = COSH(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value has same type and kind as X.  If X is complex, the
!      imaginary part of the result is in radians.  If X is 'REAL', the
       return value has a lower bound of one, \cosh (x) \geq 1.
  
  _Example_:
*************** _Example_:
*** 8982,9009 ****
            end program test_cosh
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `COSH(X)'     `REAL(4) X'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DCOSH(X)'    `REAL(8) X'   `REAL(8)'     Fortran 77 and
!                                                later
  
  _See also_:
       Inverse function: *note ACOSH::
  
- 
  
  File: gfortran.info,  Node: COUNT,  Next: CPU_TIME,  Prev: COSH,  Up: Intrinsic Procedures
  
! 9.71 `COUNT' -- Count function
  ==============================
  
  _Description_:
!      Counts the number of `.TRUE.' elements in a logical MASK, or, if
       the DIM argument is supplied, counts the number of elements along
       each row of the array in the DIM direction.  If the array has zero
!      size, or all of the elements of MASK are `.FALSE.', then the
!      result is `0'.
  
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
--- 8905,8932 ----
            end program test_cosh
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'COSH(X)'      'REAL(4) X'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DCOSH(X)'     'REAL(8) X'    'REAL(8)'      Fortran 77 and
!                                                   later
  
  _See also_:
       Inverse function: *note ACOSH::
  
  
  File: gfortran.info,  Node: COUNT,  Next: CPU_TIME,  Prev: COSH,  Up: Intrinsic Procedures
  
! 9.71 'COUNT' -- Count function
  ==============================
  
  _Description_:
! 
!      Counts the number of '.TRUE.' elements in a logical MASK, or, if
       the DIM argument is supplied, counts the number of elements along
       each row of the array in the DIM direction.  If the array has zero
!      size, or all of the elements of MASK are '.FALSE.', then the result
!      is '0'.
  
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
*************** _Class_:
*** 9012,9028 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = COUNT(MASK [, DIM, KIND])'
  
  _Arguments_:
!      MASK       The type shall be `LOGICAL'.
!      DIM        (Optional) The type shall be `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.  If DIM is
       present, the result is an array with a rank one less than the rank
       of ARRAY, and a size corresponding to the shape of ARRAY with the
--- 8935,8951 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = COUNT(MASK [, DIM, KIND])'
  
  _Arguments_:
!      MASK        The type shall be 'LOGICAL'.
!      DIM         (Optional) The type shall be 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.  If DIM is
       present, the result is an array with a rank one less than the rank
       of ARRAY, and a size corresponding to the shape of ARRAY with the
*************** _Example_:
*** 9054,9073 ****
  
  File: gfortran.info,  Node: CPU_TIME,  Next: CSHIFT,  Prev: COUNT,  Up: Intrinsic Procedures
  
! 9.72 `CPU_TIME' -- CPU elapsed time in seconds
  ==============================================
  
  _Description_:
!      Returns a `REAL' value representing the elapsed CPU time in
       seconds.  This is useful for testing segments of code to determine
       execution time.
  
       If a time source is available, time will be reported with
!      microsecond resolution. If no time source is available, TIME is
!      set to `-1.0'.
  
       Note that TIME may contain a, system dependent, arbitrary offset
!      and may not start with `0.0'. For `CPU_TIME', the absolute value
       is meaningless, only differences between subsequent calls to this
       subroutine, as shown in the example below, should be used.
  
--- 8977,8996 ----
  
  File: gfortran.info,  Node: CPU_TIME,  Next: CSHIFT,  Prev: COUNT,  Up: Intrinsic Procedures
  
! 9.72 'CPU_TIME' -- CPU elapsed time in seconds
  ==============================================
  
  _Description_:
!      Returns a 'REAL' value representing the elapsed CPU time in
       seconds.  This is useful for testing segments of code to determine
       execution time.
  
       If a time source is available, time will be reported with
!      microsecond resolution.  If no time source is available, TIME is
!      set to '-1.0'.
  
       Note that TIME may contain a, system dependent, arbitrary offset
!      and may not start with '0.0'.  For 'CPU_TIME', the absolute value
       is meaningless, only differences between subsequent calls to this
       subroutine, as shown in the example below, should be used.
  
*************** _Class_:
*** 9078,9087 ****
       Subroutine
  
  _Syntax_:
!      `CALL CPU_TIME(TIME)'
  
  _Arguments_:
!      TIME       The type shall be `REAL' with `INTENT(OUT)'.
  
  _Return value_:
       None
--- 9001,9010 ----
       Subroutine
  
  _Syntax_:
!      'CALL CPU_TIME(TIME)'
  
  _Arguments_:
!      TIME        The type shall be 'REAL' with 'INTENT(OUT)'.
  
  _Return value_:
       None
*************** _See also_:
*** 9101,9119 ****
  
  File: gfortran.info,  Node: CSHIFT,  Next: CTIME,  Prev: CPU_TIME,  Up: Intrinsic Procedures
  
! 9.73 `CSHIFT' -- Circular shift elements of an array
  ====================================================
  
  _Description_:
!      `CSHIFT(ARRAY, SHIFT [, DIM])' performs a circular shift on
!      elements of ARRAY along the dimension of DIM.  If DIM is omitted
!      it is taken to be `1'.  DIM is a scalar of type `INTEGER' in the
!      range of 1 \leq DIM \leq n) where n is the rank of ARRAY.  If the
!      rank of ARRAY is one, then all elements of ARRAY are shifted by
!      SHIFT places.  If rank is greater than one, then all complete rank
!      one sections of ARRAY along the given dimension are shifted.
!      Elements shifted out one end of each rank one section are shifted
!      back in the other end.
  
  _Standard_:
       Fortran 95 and later
--- 9024,9042 ----
  
  File: gfortran.info,  Node: CSHIFT,  Next: CTIME,  Prev: CPU_TIME,  Up: Intrinsic Procedures
  
! 9.73 'CSHIFT' -- Circular shift elements of an array
  ====================================================
  
  _Description_:
!      'CSHIFT(ARRAY, SHIFT [, DIM])' performs a circular shift on
!      elements of ARRAY along the dimension of DIM.  If DIM is omitted it
!      is taken to be '1'.  DIM is a scalar of type 'INTEGER' in the range
!      of 1 \leq DIM \leq n) where n is the rank of ARRAY.  If the rank of
!      ARRAY is one, then all elements of ARRAY are shifted by SHIFT
!      places.  If rank is greater than one, then all complete rank one
!      sections of ARRAY along the given dimension are shifted.  Elements
!      shifted out one end of each rank one section are shifted back in
!      the other end.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 9122,9133 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = CSHIFT(ARRAY, SHIFT [, DIM])'
  
  _Arguments_:
!      ARRAY      Shall be an array of any type.
!      SHIFT      The type shall be `INTEGER'.
!      DIM        The type shall be `INTEGER'.
  
  _Return value_:
       Returns an array of same type and rank as the ARRAY argument.
--- 9045,9056 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = CSHIFT(ARRAY, SHIFT [, DIM])'
  
  _Arguments_:
!      ARRAY       Shall be an array of any type.
!      SHIFT       The type shall be 'INTEGER'.
!      DIM         The type shall be 'INTEGER'.
  
  _Return value_:
       Returns an array of same type and rank as the ARRAY argument.
*************** _Example_:
*** 9149,9160 ****
  
  File: gfortran.info,  Node: CTIME,  Next: DATE_AND_TIME,  Prev: CSHIFT,  Up: Intrinsic Procedures
  
! 9.74 `CTIME' -- Convert a time into a string
  ============================================
  
  _Description_:
!      `CTIME' converts a system time value, such as returned by `TIME8',
!      to a string. The output will be of the form `Sat Aug 19 18:13:14
       1995'.
  
       This intrinsic is provided in both subroutine and function forms;
--- 9072,9083 ----
  
  File: gfortran.info,  Node: CTIME,  Next: DATE_AND_TIME,  Prev: CSHIFT,  Up: Intrinsic Procedures
  
! 9.74 'CTIME' -- Convert a time into a string
  ============================================
  
  _Description_:
!      'CTIME' converts a system time value, such as returned by 'TIME8',
!      to a string.  The output will be of the form 'Sat Aug 19 18:13:14
       1995'.
  
       This intrinsic is provided in both subroutine and function forms;
*************** _Class_:
*** 9167,9183 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL CTIME(TIME, RESULT)'.
!      `RESULT = CTIME(TIME)'.
  
  _Arguments_:
!      TIME       The type shall be of type `INTEGER'.
!      RESULT     The type shall be of type `CHARACTER' and of
!                 default kind. It is an `INTENT(OUT)' argument.
!                 If the length of this variable is too short
!                 for the time and date string to fit
!                 completely, it will be blank on procedure
!                 return.
  
  _Return value_:
       The converted date and time as a string.
--- 9090,9105 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL CTIME(TIME, RESULT)'.
!      'RESULT = CTIME(TIME)'.
  
  _Arguments_:
!      TIME        The type shall be of type 'INTEGER'.
!      RESULT      The type shall be of type 'CHARACTER' and of
!                  default kind.  It is an 'INTENT(OUT)' argument.
!                  If the length of this variable is too short for
!                  the time and date string to fit completely, it
!                  will be blank on procedure return.
  
  _Return value_:
       The converted date and time as a string.
*************** _Example_:
*** 9195,9229 ****
            end program test_ctime
  
  _See Also_:
!      *note DATE_AND_TIME::, *note GMTIME::, *note LTIME::, *note
!      TIME::, *note TIME8::
  
  
  File: gfortran.info,  Node: DATE_AND_TIME,  Next: DBLE,  Prev: CTIME,  Up: Intrinsic Procedures
  
! 9.75 `DATE_AND_TIME' -- Date and time subroutine
  ================================================
  
  _Description_:
!      `DATE_AND_TIME(DATE, TIME, ZONE, VALUES)' gets the corresponding
       date and time information from the real-time system clock.  DATE is
!      `INTENT(OUT)' and has form ccyymmdd.  TIME is `INTENT(OUT)' and
!      has form hhmmss.sss.  ZONE is `INTENT(OUT)' and has form (+-)hhmm,
       representing the difference with respect to Coordinated Universal
!      Time (UTC).  Unavailable time and date parameters return blanks.
  
!      VALUES is `INTENT(OUT)' and provides the following:
  
!                 `VALUE(1)':          The year
!                 `VALUE(2)':          The month
!                 `VALUE(3)':          The day of the month
!                 `VALUE(4)':          Time difference with UTC
!                                      in minutes
!                 `VALUE(5)':          The hour of the day
!                 `VALUE(6)':          The minutes of the hour
!                 `VALUE(7)':          The seconds of the minute
!                 `VALUE(8)':          The milliseconds of the
!                                      second
  
  _Standard_:
       Fortran 95 and later
--- 9117,9151 ----
            end program test_ctime
  
  _See Also_:
!      *note DATE_AND_TIME::, *note GMTIME::, *note LTIME::, *note TIME::,
!      *note TIME8::
  
  
  File: gfortran.info,  Node: DATE_AND_TIME,  Next: DBLE,  Prev: CTIME,  Up: Intrinsic Procedures
  
! 9.75 'DATE_AND_TIME' -- Date and time subroutine
  ================================================
  
  _Description_:
!      'DATE_AND_TIME(DATE, TIME, ZONE, VALUES)' gets the corresponding
       date and time information from the real-time system clock.  DATE is
!      'INTENT(OUT)' and has form ccyymmdd.  TIME is 'INTENT(OUT)' and has
!      form hhmmss.sss.  ZONE is 'INTENT(OUT)' and has form (+-)hhmm,
       representing the difference with respect to Coordinated Universal
!      Time (UTC). Unavailable time and date parameters return blanks.
  
!      VALUES is 'INTENT(OUT)' and provides the following:
  
!                  'VALUE(1)':            The year
!                  'VALUE(2)':            The month
!                  'VALUE(3)':            The day of the month
!                  'VALUE(4)':            Time difference with UTC in
!                                         minutes
!                  'VALUE(5)':            The hour of the day
!                  'VALUE(6)':            The minutes of the hour
!                  'VALUE(7)':            The seconds of the minute
!                  'VALUE(8)':            The milliseconds of the
!                                         second
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 9232,9248 ****
       Subroutine
  
  _Syntax_:
!      `CALL DATE_AND_TIME([DATE, TIME, ZONE, VALUES])'
  
  _Arguments_:
!      DATE       (Optional) The type shall be `CHARACTER(LEN=8)'
!                 or larger, and of default kind.
!      TIME       (Optional) The type shall be
!                 `CHARACTER(LEN=10)' or larger, and of default
!                 kind.
!      ZONE       (Optional) The type shall be `CHARACTER(LEN=5)'
!                 or larger, and of default kind.
!      VALUES     (Optional) The type shall be `INTEGER(8)'.
  
  _Return value_:
       None
--- 9154,9169 ----
       Subroutine
  
  _Syntax_:
!      'CALL DATE_AND_TIME([DATE, TIME, ZONE, VALUES])'
  
  _Arguments_:
!      DATE        (Optional) The type shall be 'CHARACTER(LEN=8)'
!                  or larger, and of default kind.
!      TIME        (Optional) The type shall be 'CHARACTER(LEN=10)'
!                  or larger, and of default kind.
!      ZONE        (Optional) The type shall be 'CHARACTER(LEN=5)'
!                  or larger, and of default kind.
!      VALUES      (Optional) The type shall be 'INTEGER(8)'.
  
  _Return value_:
       None
*************** _See also_:
*** 9268,9278 ****
  
  File: gfortran.info,  Node: DBLE,  Next: DCMPLX,  Prev: DATE_AND_TIME,  Up: Intrinsic Procedures
  
! 9.76 `DBLE' -- Double conversion function
  =========================================
  
  _Description_:
!      `DBLE(A)' Converts A to double precision real type.
  
  _Standard_:
       Fortran 77 and later
--- 9189,9199 ----
  
  File: gfortran.info,  Node: DBLE,  Next: DCMPLX,  Prev: DATE_AND_TIME,  Up: Intrinsic Procedures
  
! 9.76 'DBLE' -- Double conversion function
  =========================================
  
  _Description_:
!      'DBLE(A)' Converts A to double precision real type.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 9281,9291 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DBLE(A)'
  
  _Arguments_:
!      A          The type shall be `INTEGER', `REAL', or
!                 `COMPLEX'.
  
  _Return value_:
       The return value is of type double precision real.
--- 9202,9212 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DBLE(A)'
  
  _Arguments_:
!      A           The type shall be 'INTEGER', 'REAL', or
!                  'COMPLEX'.
  
  _Return value_:
       The return value is of type double precision real.
*************** _See also_:
*** 9304,9318 ****
  
  File: gfortran.info,  Node: DCMPLX,  Next: DIGITS,  Prev: DBLE,  Up: Intrinsic Procedures
  
! 9.77 `DCMPLX' -- Double complex conversion function
  ===================================================
  
  _Description_:
!      `DCMPLX(X [,Y])' returns a double complex number where X is
       converted to the real component.  If Y is present it is converted
!      to the imaginary component.  If Y is not present then the
!      imaginary component is set to 0.0.  If X is complex then Y must
!      not be present.
  
  _Standard_:
       GNU extension
--- 9225,9239 ----
  
  File: gfortran.info,  Node: DCMPLX,  Next: DIGITS,  Prev: DBLE,  Up: Intrinsic Procedures
  
! 9.77 'DCMPLX' -- Double complex conversion function
  ===================================================
  
  _Description_:
!      'DCMPLX(X [,Y])' returns a double complex number where X is
       converted to the real component.  If Y is present it is converted
!      to the imaginary component.  If Y is not present then the imaginary
!      component is set to 0.0.  If X is complex then Y must not be
!      present.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 9321,9336 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DCMPLX(X [, Y])'
  
  _Arguments_:
!      X          The type may be `INTEGER', `REAL', or
!                 `COMPLEX'.
!      Y          (Optional if X is not `COMPLEX'.) May be
!                 `INTEGER' or `REAL'.
  
  _Return value_:
!      The return value is of type `COMPLEX(8)'
  
  _Example_:
            program test_dcmplx
--- 9242,9256 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DCMPLX(X [, Y])'
  
  _Arguments_:
!      X           The type may be 'INTEGER', 'REAL', or 'COMPLEX'.
!      Y           (Optional if X is not 'COMPLEX'.)  May be
!                  'INTEGER' or 'REAL'.
  
  _Return value_:
!      The return value is of type 'COMPLEX(8)'
  
  _Example_:
            program test_dcmplx
*************** _Example_:
*** 9347,9360 ****
  
  File: gfortran.info,  Node: DIGITS,  Next: DIM,  Prev: DCMPLX,  Up: Intrinsic Procedures
  
! 9.78 `DIGITS' -- Significant binary digits function
  ===================================================
  
  _Description_:
!      `DIGITS(X)' returns the number of significant binary digits of the
!      internal model representation of X.  For example, on a system
!      using a 32-bit floating point representation, a default real
!      number would likely return 24.
  
  _Standard_:
       Fortran 95 and later
--- 9267,9280 ----
  
  File: gfortran.info,  Node: DIGITS,  Next: DIM,  Prev: DCMPLX,  Up: Intrinsic Procedures
  
! 9.78 'DIGITS' -- Significant binary digits function
  ===================================================
  
  _Description_:
!      'DIGITS(X)' returns the number of significant binary digits of the
!      internal model representation of X.  For example, on a system using
!      a 32-bit floating point representation, a default real number would
!      likely return 24.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 9363,9375 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = DIGITS(X)'
  
  _Arguments_:
!      X          The type may be `INTEGER' or `REAL'.
  
  _Return value_:
!      The return value is of type `INTEGER'.
  
  _Example_:
            program test_digits
--- 9283,9295 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = DIGITS(X)'
  
  _Arguments_:
!      X           The type may be 'INTEGER' or 'REAL'.
  
  _Return value_:
!      The return value is of type 'INTEGER'.
  
  _Example_:
            program test_digits
*************** _Example_:
*** 9384,9394 ****
  
  File: gfortran.info,  Node: DIM,  Next: DOT_PRODUCT,  Prev: DIGITS,  Up: Intrinsic Procedures
  
! 9.79 `DIM' -- Positive difference
  =================================
  
  _Description_:
!      `DIM(X,Y)' returns the difference `X-Y' if the result is positive;
       otherwise returns zero.
  
  _Standard_:
--- 9304,9314 ----
  
  File: gfortran.info,  Node: DIM,  Next: DOT_PRODUCT,  Prev: DIGITS,  Up: Intrinsic Procedures
  
! 9.79 'DIM' -- Positive difference
  =================================
  
  _Description_:
!      'DIM(X,Y)' returns the difference 'X-Y' if the result is positive;
       otherwise returns zero.
  
  _Standard_:
*************** _Class_:
*** 9398,9411 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DIM(X, Y)'
  
  _Arguments_:
!      X          The type shall be `INTEGER' or `REAL'
!      Y          The type shall be the same type and kind as X.
  
  _Return value_:
!      The return value is of type `INTEGER' or `REAL'.
  
  _Example_:
            program test_dim
--- 9318,9331 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DIM(X, Y)'
  
  _Arguments_:
!      X           The type shall be 'INTEGER' or 'REAL'
!      Y           The type shall be the same type and kind as X.
  
  _Return value_:
!      The return value is of type 'INTEGER' or 'REAL'.
  
  _Example_:
            program test_dim
*************** _Example_:
*** 9418,9446 ****
            end program test_dim
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DIM(X,Y)'    `REAL(4) X,   `REAL(4)'     Fortran 77 and
!                    Y'                          later
!      `IDIM(X,Y)'   `INTEGER(4)   `INTEGER(4)'  Fortran 77 and
!                    X, Y'                       later
!      `DDIM(X,Y)'   `REAL(8) X,   `REAL(8)'     Fortran 77 and
!                    Y'                          later
  
  
  File: gfortran.info,  Node: DOT_PRODUCT,  Next: DPROD,  Prev: DIM,  Up: Intrinsic Procedures
  
! 9.80 `DOT_PRODUCT' -- Dot product function
  ==========================================
  
  _Description_:
!      `DOT_PRODUCT(VECTOR_A, VECTOR_B)' computes the dot product
       multiplication of two vectors VECTOR_A and VECTOR_B.  The two
!      vectors may be either numeric or logical and must be arrays of
!      rank one and of equal size. If the vectors are `INTEGER' or
!      `REAL', the result is `SUM(VECTOR_A*VECTOR_B)'. If the vectors are
!      `COMPLEX', the result is `SUM(CONJG(VECTOR_A)*VECTOR_B)'. If the
!      vectors are `LOGICAL', the result is `ANY(VECTOR_A .AND.
!      VECTOR_B)'.
  
  _Standard_:
       Fortran 95 and later
--- 9338,9365 ----
            end program test_dim
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DIM(X,Y)'     'REAL(4) X,    'REAL(4)'      Fortran 77 and
!                     Y'                            later
!      'IDIM(X,Y)'    'INTEGER(4)    'INTEGER(4)'   Fortran 77 and
!                     X, Y'                         later
!      'DDIM(X,Y)'    'REAL(8) X,    'REAL(8)'      Fortran 77 and
!                     Y'                            later
  
  
  File: gfortran.info,  Node: DOT_PRODUCT,  Next: DPROD,  Prev: DIM,  Up: Intrinsic Procedures
  
! 9.80 'DOT_PRODUCT' -- Dot product function
  ==========================================
  
  _Description_:
!      'DOT_PRODUCT(VECTOR_A, VECTOR_B)' computes the dot product
       multiplication of two vectors VECTOR_A and VECTOR_B.  The two
!      vectors may be either numeric or logical and must be arrays of rank
!      one and of equal size.  If the vectors are 'INTEGER' or 'REAL', the
!      result is 'SUM(VECTOR_A*VECTOR_B)'.  If the vectors are 'COMPLEX',
!      the result is 'SUM(CONJG(VECTOR_A)*VECTOR_B)'.  If the vectors are
!      'LOGICAL', the result is 'ANY(VECTOR_A .AND. VECTOR_B)'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 9449,9467 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = DOT_PRODUCT(VECTOR_A, VECTOR_B)'
  
  _Arguments_:
!      VECTOR_A   The type shall be numeric or `LOGICAL', rank 1.
!      VECTOR_B   The type shall be numeric if VECTOR_A is of
!                 numeric type or `LOGICAL' if VECTOR_A is of
!                 type `LOGICAL'. VECTOR_B shall be a rank-one
!                 array.
  
  _Return value_:
       If the arguments are numeric, the return value is a scalar of
!      numeric type, `INTEGER', `REAL', or `COMPLEX'.  If the arguments
!      are `LOGICAL', the return value is `.TRUE.' or `.FALSE.'.
  
  _Example_:
            program test_dot_prod
--- 9368,9385 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = DOT_PRODUCT(VECTOR_A, VECTOR_B)'
  
  _Arguments_:
!      VECTOR_A    The type shall be numeric or 'LOGICAL', rank 1.
!      VECTOR_B    The type shall be numeric if VECTOR_A is of
!                  numeric type or 'LOGICAL' if VECTOR_A is of type
!                  'LOGICAL'.  VECTOR_B shall be a rank-one array.
  
  _Return value_:
       If the arguments are numeric, the return value is a scalar of
!      numeric type, 'INTEGER', 'REAL', or 'COMPLEX'.  If the arguments
!      are 'LOGICAL', the return value is '.TRUE.' or '.FALSE.'.
  
  _Example_:
            program test_dot_prod
*************** _Example_:
*** 9478,9488 ****
  
  File: gfortran.info,  Node: DPROD,  Next: DREAL,  Prev: DOT_PRODUCT,  Up: Intrinsic Procedures
  
! 9.81 `DPROD' -- Double product function
  =======================================
  
  _Description_:
!      `DPROD(X,Y)' returns the product `X*Y'.
  
  _Standard_:
       Fortran 77 and later
--- 9396,9406 ----
  
  File: gfortran.info,  Node: DPROD,  Next: DREAL,  Prev: DOT_PRODUCT,  Up: Intrinsic Procedures
  
! 9.81 'DPROD' -- Double product function
  =======================================
  
  _Description_:
!      'DPROD(X,Y)' returns the product 'X*Y'.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 9491,9504 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DPROD(X, Y)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
!      Y          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL(8)'.
  
  _Example_:
            program test_dprod
--- 9409,9422 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DPROD(X, Y)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
!      Y           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL(8)'.
  
  _Example_:
            program test_dprod
*************** _Example_:
*** 9510,9528 ****
            end program test_dprod
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DPROD(X,Y)'  `REAL(4) X,   `REAL(8)'     Fortran 77 and
!                    Y'                          later
! 
  
  
  File: gfortran.info,  Node: DREAL,  Next: DSHIFTL,  Prev: DPROD,  Up: Intrinsic Procedures
  
! 9.82 `DREAL' -- Double real part function
  =========================================
  
  _Description_:
!      `DREAL(Z)' returns the real part of complex variable Z.
  
  _Standard_:
       GNU extension
--- 9428,9445 ----
            end program test_dprod
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DPROD(X,Y)'   'REAL(4) X,    'REAL(8)'      Fortran 77 and
!                     Y'                            later
  
  
  File: gfortran.info,  Node: DREAL,  Next: DSHIFTL,  Prev: DPROD,  Up: Intrinsic Procedures
  
! 9.82 'DREAL' -- Double real part function
  =========================================
  
  _Description_:
!      'DREAL(Z)' returns the real part of complex variable Z.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 9531,9543 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DREAL(A)'
  
  _Arguments_:
!      A          The type shall be `COMPLEX(8)'.
  
  _Return value_:
!      The return value is of type `REAL(8)'.
  
  _Example_:
            program test_dreal
--- 9448,9460 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DREAL(A)'
  
  _Arguments_:
!      A           The type shall be 'COMPLEX(8)'.
  
  _Return value_:
!      The return value is of type 'REAL(8)'.
  
  _Example_:
            program test_dreal
*************** _Example_:
*** 9548,9562 ****
  _See also_:
       *note AIMAG::
  
- 
  
  File: gfortran.info,  Node: DSHIFTL,  Next: DSHIFTR,  Prev: DREAL,  Up: Intrinsic Procedures
  
! 9.83 `DSHIFTL' -- Combined left shift
  =====================================
  
  _Description_:
!      `DSHIFTL(I, J, SHIFT)' combines bits of I and J. The rightmost
       SHIFT bits of the result are the leftmost SHIFT bits of J, and the
       remaining bits are the rightmost bits of I.
  
--- 9465,9478 ----
  _See also_:
       *note AIMAG::
  
  
  File: gfortran.info,  Node: DSHIFTL,  Next: DSHIFTR,  Prev: DREAL,  Up: Intrinsic Procedures
  
! 9.83 'DSHIFTL' -- Combined left shift
  =====================================
  
  _Description_:
!      'DSHIFTL(I, J, SHIFT)' combines bits of I and J.  The rightmost
       SHIFT bits of the result are the leftmost SHIFT bits of J, and the
       remaining bits are the rightmost bits of I.
  
*************** _Class_:
*** 9567,9589 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DSHIFTL(I, J, SHIFT)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER' or a BOZ constant.
!      J          Shall be of type `INTEGER' or a BOZ constant.
!                 If both I and J have integer type, then they
!                 shall have the same kind type parameter. I and
!                 J shall not both be BOZ constants.
!      SHIFT      Shall be of type `INTEGER'. It shall be
!                 nonnegative.  If I is not a BOZ constant, then
!                 SHIFT shall be less than or equal to
!                 `BIT_SIZE(I)'; otherwise, SHIFT shall be less
!                 than or equal to `BIT_SIZE(J)'.
  
  _Return value_:
       If either I or J is a BOZ constant, it is first converted as if by
!      the intrinsic function `INT' to an integer type with the kind type
       parameter of the other.
  
  _See also_:
--- 9483,9505 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DSHIFTL(I, J, SHIFT)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER' or a BOZ constant.
!      J           Shall be of type 'INTEGER' or a BOZ constant.
!                  If both I and J have integer type, then they
!                  shall have the same kind type parameter.  I and
!                  J shall not both be BOZ constants.
!      SHIFT       Shall be of type 'INTEGER'.  It shall be
!                  nonnegative.  If I is not a BOZ constant, then
!                  SHIFT shall be less than or equal to
!                  'BIT_SIZE(I)'; otherwise, SHIFT shall be less
!                  than or equal to 'BIT_SIZE(J)'.
  
  _Return value_:
       If either I or J is a BOZ constant, it is first converted as if by
!      the intrinsic function 'INT' to an integer type with the kind type
       parameter of the other.
  
  _See also_:
*************** _See also_:
*** 9592,9604 ****
  
  File: gfortran.info,  Node: DSHIFTR,  Next: DTIME,  Prev: DSHIFTL,  Up: Intrinsic Procedures
  
! 9.84 `DSHIFTR' -- Combined right shift
  ======================================
  
  _Description_:
!      `DSHIFTR(I, J, SHIFT)' combines bits of I and J. The leftmost
!      SHIFT bits of the result are the rightmost SHIFT bits of I, and
!      the remaining bits are the leftmost bits of J.
  
  _Standard_:
       Fortran 2008 and later
--- 9508,9520 ----
  
  File: gfortran.info,  Node: DSHIFTR,  Next: DTIME,  Prev: DSHIFTL,  Up: Intrinsic Procedures
  
! 9.84 'DSHIFTR' -- Combined right shift
  ======================================
  
  _Description_:
!      'DSHIFTR(I, J, SHIFT)' combines bits of I and J.  The leftmost
!      SHIFT bits of the result are the rightmost SHIFT bits of I, and the
!      remaining bits are the leftmost bits of J.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 9607,9629 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = DSHIFTR(I, J, SHIFT)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER' or a BOZ constant.
!      J          Shall be of type `INTEGER' or a BOZ constant.
!                 If both I and J have integer type, then they
!                 shall have the same kind type parameter. I and
!                 J shall not both be BOZ constants.
!      SHIFT      Shall be of type `INTEGER'. It shall be
!                 nonnegative.  If I is not a BOZ constant, then
!                 SHIFT shall be less than or equal to
!                 `BIT_SIZE(I)'; otherwise, SHIFT shall be less
!                 than or equal to `BIT_SIZE(J)'.
  
  _Return value_:
       If either I or J is a BOZ constant, it is first converted as if by
!      the intrinsic function `INT' to an integer type with the kind type
       parameter of the other.
  
  _See also_:
--- 9523,9545 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = DSHIFTR(I, J, SHIFT)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER' or a BOZ constant.
!      J           Shall be of type 'INTEGER' or a BOZ constant.
!                  If both I and J have integer type, then they
!                  shall have the same kind type parameter.  I and
!                  J shall not both be BOZ constants.
!      SHIFT       Shall be of type 'INTEGER'.  It shall be
!                  nonnegative.  If I is not a BOZ constant, then
!                  SHIFT shall be less than or equal to
!                  'BIT_SIZE(I)'; otherwise, SHIFT shall be less
!                  than or equal to 'BIT_SIZE(J)'.
  
  _Return value_:
       If either I or J is a BOZ constant, it is first converted as if by
!      the intrinsic function 'INT' to an integer type with the kind type
       parameter of the other.
  
  _See also_:
*************** _See also_:
*** 9632,9673 ****
  
  File: gfortran.info,  Node: DTIME,  Next: EOSHIFT,  Prev: DSHIFTR,  Up: Intrinsic Procedures
  
! 9.85 `DTIME' -- Execution time subroutine (or function)
  =======================================================
  
  _Description_:
!      `DTIME(VALUES, TIME)' initially returns the number of seconds of
       runtime since the start of the process's execution in TIME.  VALUES
!      returns the user and system components of this time in `VALUES(1)'
!      and `VALUES(2)' respectively. TIME is equal to `VALUES(1) +
       VALUES(2)'.
  
!      Subsequent invocations of `DTIME' return values accumulated since
       the previous invocation.
  
!      On some systems, the underlying timings are represented using
!      types with sufficiently small limits that overflows (wrap around)
!      are possible, such as 32-bit types. Therefore, the values returned
!      by this intrinsic might be, or become, negative, or numerically
!      less than previous values, during a single run of the compiled
!      program.
  
!      Please note, that this implementation is thread safe if used
!      within OpenMP directives, i.e., its state will be consistent while
!      called from multiple threads. However, if `DTIME' is called from
!      multiple threads, the result is still the time since the last
!      invocation. This may not give the intended results. If possible,
!      use `CPU_TIME' instead.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      VALUES and TIME are `INTENT(OUT)' and provide the following:
  
!                 `VALUES(1)':         User time in seconds.
!                 `VALUES(2)':         System time in seconds.
!                 `TIME':              Run time since start in
!                                      seconds.
  
  _Standard_:
       GNU extension
--- 9548,9588 ----
  
  File: gfortran.info,  Node: DTIME,  Next: EOSHIFT,  Prev: DSHIFTR,  Up: Intrinsic Procedures
  
! 9.85 'DTIME' -- Execution time subroutine (or function)
  =======================================================
  
  _Description_:
!      'DTIME(VALUES, TIME)' initially returns the number of seconds of
       runtime since the start of the process's execution in TIME.  VALUES
!      returns the user and system components of this time in 'VALUES(1)'
!      and 'VALUES(2)' respectively.  TIME is equal to 'VALUES(1) +
       VALUES(2)'.
  
!      Subsequent invocations of 'DTIME' return values accumulated since
       the previous invocation.
  
!      On some systems, the underlying timings are represented using types
!      with sufficiently small limits that overflows (wrap around) are
!      possible, such as 32-bit types.  Therefore, the values returned by
!      this intrinsic might be, or become, negative, or numerically less
!      than previous values, during a single run of the compiled program.
  
!      Please note, that this implementation is thread safe if used within
!      OpenMP directives, i.e., its state will be consistent while called
!      from multiple threads.  However, if 'DTIME' is called from multiple
!      threads, the result is still the time since the last invocation.
!      This may not give the intended results.  If possible, use
!      'CPU_TIME' instead.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      VALUES and TIME are 'INTENT(OUT)' and provide the following:
  
!                  'VALUES(1)':           User time in seconds.
!                  'VALUES(2)':           System time in seconds.
!                  'TIME':                Run time since start in
!                                         seconds.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 9676,9687 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL DTIME(VALUES, TIME)'.
!      `TIME = DTIME(VALUES)', (not recommended).
  
  _Arguments_:
!      VALUES     The type shall be `REAL(4), DIMENSION(2)'.
!      TIME       The type shall be `REAL(4)'.
  
  _Return value_:
       Elapsed time in seconds since the last invocation or since the
--- 9591,9602 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL DTIME(VALUES, TIME)'.
!      'TIME = DTIME(VALUES)', (not recommended).
  
  _Arguments_:
!      VALUES      The type shall be 'REAL(4), DIMENSION(2)'.
!      TIME        The type shall be 'REAL(4)'.
  
  _Return value_:
       Elapsed time in seconds since the last invocation or since the
*************** _Example_:
*** 9708,9738 ****
  _See also_:
       *note CPU_TIME::
  
- 
  
  File: gfortran.info,  Node: EOSHIFT,  Next: EPSILON,  Prev: DTIME,  Up: Intrinsic Procedures
  
! 9.86 `EOSHIFT' -- End-off shift elements of an array
  ====================================================
  
  _Description_:
!      `EOSHIFT(ARRAY, SHIFT[, BOUNDARY, DIM])' performs an end-off shift
!      on elements of ARRAY along the dimension of DIM.  If DIM is
!      omitted it is taken to be `1'.  DIM is a scalar of type `INTEGER'
!      in the range of 1 \leq DIM \leq n) where n is the rank of ARRAY.
!      If the rank of ARRAY is one, then all elements of ARRAY are
!      shifted by SHIFT places.  If rank is greater than one, then all
!      complete rank one sections of ARRAY along the given dimension are
!      shifted.  Elements shifted out one end of each rank one section
!      are dropped.  If BOUNDARY is present then the corresponding value
!      of from BOUNDARY is copied back in the other end.  If BOUNDARY is
!      not present then the following are copied in depending on the type
!      of ARRAY.
  
!      _Array     _Boundary Value_
!      Type_      
!      Numeric    0 of the type and kind of ARRAY.
!      Logical    `.FALSE.'.
       Character(LEN)LEN blanks.
  
  _Standard_:
--- 9623,9652 ----
  _See also_:
       *note CPU_TIME::
  
  
  File: gfortran.info,  Node: EOSHIFT,  Next: EPSILON,  Prev: DTIME,  Up: Intrinsic Procedures
  
! 9.86 'EOSHIFT' -- End-off shift elements of an array
  ====================================================
  
  _Description_:
!      'EOSHIFT(ARRAY, SHIFT[, BOUNDARY, DIM])' performs an end-off shift
!      on elements of ARRAY along the dimension of DIM.  If DIM is omitted
!      it is taken to be '1'.  DIM is a scalar of type 'INTEGER' in the
!      range of 1 \leq DIM \leq n) where n is the rank of ARRAY.  If the
!      rank of ARRAY is one, then all elements of ARRAY are shifted by
!      SHIFT places.  If rank is greater than one, then all complete rank
!      one sections of ARRAY along the given dimension are shifted.
!      Elements shifted out one end of each rank one section are dropped.
!      If BOUNDARY is present then the corresponding value of from
!      BOUNDARY is copied back in the other end.  If BOUNDARY is not
!      present then the following are copied in depending on the type of
!      ARRAY.
  
!      _Array      _Boundary Value_
!      Type_
!      Numeric     0 of the type and kind of ARRAY.
!      Logical     '.FALSE.'.
       Character(LEN)LEN blanks.
  
  _Standard_:
*************** _Class_:
*** 9742,9754 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = EOSHIFT(ARRAY, SHIFT [, BOUNDARY, DIM])'
  
  _Arguments_:
!      ARRAY      May be any type, not scalar.
!      SHIFT      The type shall be `INTEGER'.
!      BOUNDARY   Same type as ARRAY.
!      DIM        The type shall be `INTEGER'.
  
  _Return value_:
       Returns an array of same type and rank as the ARRAY argument.
--- 9656,9668 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = EOSHIFT(ARRAY, SHIFT [, BOUNDARY, DIM])'
  
  _Arguments_:
!      ARRAY       May be any type, not scalar.
!      SHIFT       The type shall be 'INTEGER'.
!      BOUNDARY    Same type as ARRAY.
!      DIM         The type shall be 'INTEGER'.
  
  _Return value_:
       Returns an array of same type and rank as the ARRAY argument.
*************** _Example_:
*** 9770,9780 ****
  
  File: gfortran.info,  Node: EPSILON,  Next: ERF,  Prev: EOSHIFT,  Up: Intrinsic Procedures
  
! 9.87 `EPSILON' -- Epsilon function
  ==================================
  
  _Description_:
!      `EPSILON(X)' returns the smallest number E of the same kind as X
       such that 1 + E > 1.
  
  _Standard_:
--- 9684,9694 ----
  
  File: gfortran.info,  Node: EPSILON,  Next: ERF,  Prev: EOSHIFT,  Up: Intrinsic Procedures
  
! 9.87 'EPSILON' -- Epsilon function
  ==================================
  
  _Description_:
!      'EPSILON(X)' returns the smallest number E of the same kind as X
       such that 1 + E > 1.
  
  _Standard_:
*************** _Class_:
*** 9784,9793 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = EPSILON(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
       The return value is of same type as the argument.
--- 9698,9707 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = EPSILON(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
       The return value is of same type as the argument.
*************** _Example_:
*** 9803,9813 ****
  
  File: gfortran.info,  Node: ERF,  Next: ERFC,  Prev: EPSILON,  Up: Intrinsic Procedures
  
! 9.88 `ERF' -- Error function
  ============================
  
  _Description_:
!      `ERF(X)' computes the error function of X.
  
  _Standard_:
       Fortran 2008 and later
--- 9717,9727 ----
  
  File: gfortran.info,  Node: ERF,  Next: ERFC,  Prev: EPSILON,  Up: Intrinsic Procedures
  
! 9.88 'ERF' -- Error function
  ============================
  
  _Description_:
!      'ERF(X)' computes the error function of X.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 9816,9828 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ERF(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL', of the same kind as X and lies
       in the range -1 \leq erf (x) \leq 1 .
  
  _Example_:
--- 9730,9742 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ERF(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL', of the same kind as X and lies
       in the range -1 \leq erf (x) \leq 1 .
  
  _Example_:
*************** _Example_:
*** 9832,9848 ****
            end program test_erf
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DERF(X)'     `REAL(8) X'   `REAL(8)'     GNU extension
  
  
  File: gfortran.info,  Node: ERFC,  Next: ERFC_SCALED,  Prev: ERF,  Up: Intrinsic Procedures
  
! 9.89 `ERFC' -- Error function
  =============================
  
  _Description_:
!      `ERFC(X)' computes the complementary error function of X.
  
  _Standard_:
       Fortran 2008 and later
--- 9746,9762 ----
            end program test_erf
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DERF(X)'      'REAL(8) X'    'REAL(8)'      GNU extension
  
  
  File: gfortran.info,  Node: ERFC,  Next: ERFC_SCALED,  Prev: ERF,  Up: Intrinsic Procedures
  
! 9.89 'ERFC' -- Error function
  =============================
  
  _Description_:
!      'ERFC(X)' computes the complementary error function of X.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 9851,9864 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ERFC(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL' and of the same kind as X.  It
!      lies in the range  0 \leq erfc (x) \leq 2 .
  
  _Example_:
            program test_erfc
--- 9765,9778 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ERFC(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL' and of the same kind as X.  It
!      lies in the range 0 \leq erfc (x) \leq 2 .
  
  _Example_:
            program test_erfc
*************** _Example_:
*** 9867,9883 ****
            end program test_erfc
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `DERFC(X)'    `REAL(8) X'   `REAL(8)'     GNU extension
  
  
  File: gfortran.info,  Node: ERFC_SCALED,  Next: ETIME,  Prev: ERFC,  Up: Intrinsic Procedures
  
! 9.90 `ERFC_SCALED' -- Error function
  ====================================
  
  _Description_:
!      `ERFC_SCALED(X)' computes the exponentially-scaled complementary
       error function of X.
  
  _Standard_:
--- 9781,9797 ----
            end program test_erfc
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'DERFC(X)'     'REAL(8) X'    'REAL(8)'      GNU extension
  
  
  File: gfortran.info,  Node: ERFC_SCALED,  Next: ETIME,  Prev: ERFC,  Up: Intrinsic Procedures
  
! 9.90 'ERFC_SCALED' -- Error function
  ====================================
  
  _Description_:
!      'ERFC_SCALED(X)' computes the exponentially-scaled complementary
       error function of X.
  
  _Standard_:
*************** _Class_:
*** 9887,9899 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ERFC_SCALED(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL' and of the same kind as X.
  
  _Example_:
            program test_erfc_scaled
--- 9801,9813 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ERFC_SCALED(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL' and of the same kind as X.
  
  _Example_:
            program test_erfc_scaled
*************** _Example_:
*** 9904,9934 ****
  
  File: gfortran.info,  Node: ETIME,  Next: EVENT_QUERY,  Prev: ERFC_SCALED,  Up: Intrinsic Procedures
  
! 9.91 `ETIME' -- Execution time subroutine (or function)
  =======================================================
  
  _Description_:
!      `ETIME(VALUES, TIME)' returns the number of seconds of runtime
!      since the start of the process's execution in TIME.  VALUES
!      returns the user and system components of this time in `VALUES(1)'
!      and `VALUES(2)' respectively. TIME is equal to `VALUES(1) +
       VALUES(2)'.
  
!      On some systems, the underlying timings are represented using
!      types with sufficiently small limits that overflows (wrap around)
!      are possible, such as 32-bit types. Therefore, the values returned
!      by this intrinsic might be, or become, negative, or numerically
!      less than previous values, during a single run of the compiled
!      program.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      VALUES and TIME are `INTENT(OUT)' and provide the following:
  
!                 `VALUES(1)':         User time in seconds.
!                 `VALUES(2)':         System time in seconds.
!                 `TIME':              Run time since start in seconds.
  
  _Standard_:
       GNU extension
--- 9818,9847 ----
  
  File: gfortran.info,  Node: ETIME,  Next: EVENT_QUERY,  Prev: ERFC_SCALED,  Up: Intrinsic Procedures
  
! 9.91 'ETIME' -- Execution time subroutine (or function)
  =======================================================
  
  _Description_:
!      'ETIME(VALUES, TIME)' returns the number of seconds of runtime
!      since the start of the process's execution in TIME.  VALUES returns
!      the user and system components of this time in 'VALUES(1)' and
!      'VALUES(2)' respectively.  TIME is equal to 'VALUES(1) +
       VALUES(2)'.
  
!      On some systems, the underlying timings are represented using types
!      with sufficiently small limits that overflows (wrap around) are
!      possible, such as 32-bit types.  Therefore, the values returned by
!      this intrinsic might be, or become, negative, or numerically less
!      than previous values, during a single run of the compiled program.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      VALUES and TIME are 'INTENT(OUT)' and provide the following:
  
!                  'VALUES(1)':           User time in seconds.
!                  'VALUES(2)':           System time in seconds.
!                  'TIME':                Run time since start in seconds.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 9937,9948 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL ETIME(VALUES, TIME)'.
!      `TIME = ETIME(VALUES)', (not recommended).
  
  _Arguments_:
!      VALUES     The type shall be `REAL(4), DIMENSION(2)'.
!      TIME       The type shall be `REAL(4)'.
  
  _Return value_:
       Elapsed time in seconds since the start of program execution.
--- 9850,9861 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL ETIME(VALUES, TIME)'.
!      'TIME = ETIME(VALUES)', (not recommended).
  
  _Arguments_:
!      VALUES      The type shall be 'REAL(4), DIMENSION(2)'.
!      TIME        The type shall be 'REAL(4)'.
  
  _Return value_:
       Elapsed time in seconds since the start of program execution.
*************** _Example_:
*** 9968,9987 ****
  _See also_:
       *note CPU_TIME::
  
- 
  
  File: gfortran.info,  Node: EVENT_QUERY,  Next: EXECUTE_COMMAND_LINE,  Prev: ETIME,  Up: Intrinsic Procedures
  
! 9.92 `EVENT_QUERY' -- Query whether a coarray event has occurred
  ================================================================
  
  _Description_:
!      `EVENT_QUERY' assignes the number of events to COUNT which have
       been posted to the EVENT variable and not yet been removed by
!      calling `EVENT WAIT'. When STAT is present and the invokation was
!      successful, it is assigned the value 0. If it is present and the
!      invokation has failed, it is assigned a positive value and COUNT
!      is assigned the value -1.
  
  _Standard_:
       TS 18508 or later
--- 9881,9899 ----
  _See also_:
       *note CPU_TIME::
  
  
  File: gfortran.info,  Node: EVENT_QUERY,  Next: EXECUTE_COMMAND_LINE,  Prev: ETIME,  Up: Intrinsic Procedures
  
! 9.92 'EVENT_QUERY' -- Query whether a coarray event has occurred
  ================================================================
  
  _Description_:
!      'EVENT_QUERY' assignes the number of events to COUNT which have
       been posted to the EVENT variable and not yet been removed by
!      calling 'EVENT WAIT'.  When STAT is present and the invokation was
!      successful, it is assigned the value 0.  If it is present and the
!      invokation has failed, it is assigned a positive value and COUNT is
!      assigned the value -1.
  
  _Standard_:
       TS 18508 or later
*************** _Class_:
*** 9990,10005 ****
       subroutine
  
  _Syntax_:
!      `CALL EVENT_QUERY (EVENT, COUNT [, STAT])'
  
  _Arguments_:
!      EVENT      (intent(IN)) Scalar of type `EVENT_TYPE',
!                 defined in `ISO_FORTRAN_ENV'; shall not be
!                 coindexed.
!      COUNT      (intent(out))Scalar integer with at least the
!                 precision of default integer.
!      STAT       (optional) Scalar default-kind integer
!                 variable.
  
  _Example_:
            program atomic
--- 9902,9916 ----
       subroutine
  
  _Syntax_:
!      'CALL EVENT_QUERY (EVENT, COUNT [, STAT])'
  
  _Arguments_:
!      EVENT       (intent(IN)) Scalar of type 'EVENT_TYPE',
!                  defined in 'ISO_FORTRAN_ENV'; shall not be
!                  coindexed.
!      COUNT       (intent(out))Scalar integer with at least the
!                  precision of default integer.
!      STAT        (optional) Scalar default-kind integer variable.
  
  _Example_:
            program atomic
*************** _Example_:
*** 10015,10047 ****
              end if
            end program atomic
  
- 
  
  File: gfortran.info,  Node: EXECUTE_COMMAND_LINE,  Next: EXIT,  Prev: EVENT_QUERY,  Up: Intrinsic Procedures
  
! 9.93 `EXECUTE_COMMAND_LINE' -- Execute a shell command
  ======================================================
  
  _Description_:
!      `EXECUTE_COMMAND_LINE' runs a shell command, synchronously or
       asynchronously.
  
!      The `COMMAND' argument is passed to the shell and executed, using
!      the C library's `system' call.  (The shell is `sh' on Unix
!      systems, and `cmd.exe' on Windows.)  If `WAIT' is present and has
!      the value false, the execution of the command is asynchronous if
!      the system supports it; otherwise, the command is executed
!      synchronously.
  
       The three last arguments allow the user to get status information.
!      After synchronous execution, `EXITSTAT' contains the integer exit
!      code of the command, as returned by `system'.  `CMDSTAT' is set to
       zero if the command line was executed (whatever its exit status
!      was).  `CMDMSG' is assigned an error message if an error has
       occurred.
  
!      Note that the `system' function need not be thread-safe. It is the
!      responsibility of the user to ensure that `system' is not called
       concurrently.
  
  _Standard_:
--- 9926,9956 ----
              end if
            end program atomic
  
  
  File: gfortran.info,  Node: EXECUTE_COMMAND_LINE,  Next: EXIT,  Prev: EVENT_QUERY,  Up: Intrinsic Procedures
  
! 9.93 'EXECUTE_COMMAND_LINE' -- Execute a shell command
  ======================================================
  
  _Description_:
!      'EXECUTE_COMMAND_LINE' runs a shell command, synchronously or
       asynchronously.
  
!      The 'COMMAND' argument is passed to the shell and executed, using
!      the C library's 'system' call.  (The shell is 'sh' on Unix systems,
!      and 'cmd.exe' on Windows.)  If 'WAIT' is present and has the value
!      false, the execution of the command is asynchronous if the system
!      supports it; otherwise, the command is executed synchronously.
  
       The three last arguments allow the user to get status information.
!      After synchronous execution, 'EXITSTAT' contains the integer exit
!      code of the command, as returned by 'system'.  'CMDSTAT' is set to
       zero if the command line was executed (whatever its exit status
!      was).  'CMDMSG' is assigned an error message if an error has
       occurred.
  
!      Note that the 'system' function need not be thread-safe.  It is the
!      responsibility of the user to ensure that 'system' is not called
       concurrently.
  
  _Standard_:
*************** _Class_:
*** 10051,10068 ****
       Subroutine
  
  _Syntax_:
!      `CALL EXECUTE_COMMAND_LINE(COMMAND [, WAIT, EXITSTAT, CMDSTAT,
       CMDMSG ])'
  
  _Arguments_:
!      COMMAND    Shall be a default `CHARACTER' scalar.
!      WAIT       (Optional) Shall be a default `LOGICAL' scalar.
!      EXITSTAT   (Optional) Shall be an `INTEGER' of the
!                 default kind.
!      CMDSTAT    (Optional) Shall be an `INTEGER' of the
!                 default kind.
!      CMDMSG     (Optional) Shall be an `CHARACTER' scalar of
!                 the default kind.
  
  _Example_:
            program test_exec
--- 9960,9977 ----
       Subroutine
  
  _Syntax_:
!      'CALL EXECUTE_COMMAND_LINE(COMMAND [, WAIT, EXITSTAT, CMDSTAT,
       CMDMSG ])'
  
  _Arguments_:
!      COMMAND     Shall be a default 'CHARACTER' scalar.
!      WAIT        (Optional) Shall be a default 'LOGICAL' scalar.
!      EXITSTAT    (Optional) Shall be an 'INTEGER' of the default
!                  kind.
!      CMDSTAT     (Optional) Shall be an 'INTEGER' of the default
!                  kind.
!      CMDMSG      (Optional) Shall be an 'CHARACTER' scalar of the
!                  default kind.
  
  _Example_:
            program test_exec
*************** _Example_:
*** 10077,10087 ****
            end program test_exec
  
  _Note_:
!      Because this intrinsic is implemented in terms of the `system'
       function call, its behavior with respect to signaling is processor
!      dependent. In particular, on POSIX-compliant systems, the SIGINT
       and SIGQUIT signals will be ignored, and the SIGCHLD will be
!      blocked. As such, if the parent process is terminated, the child
       process might not be terminated alongside.
  
  _See also_:
--- 9986,9997 ----
            end program test_exec
  
  _Note_:
! 
!      Because this intrinsic is implemented in terms of the 'system'
       function call, its behavior with respect to signaling is processor
!      dependent.  In particular, on POSIX-compliant systems, the SIGINT
       and SIGQUIT signals will be ignored, and the SIGCHLD will be
!      blocked.  As such, if the parent process is terminated, the child
       process might not be terminated alongside.
  
  _See also_:
*************** _See also_:
*** 10090,10101 ****
  
  File: gfortran.info,  Node: EXIT,  Next: EXP,  Prev: EXECUTE_COMMAND_LINE,  Up: Intrinsic Procedures
  
! 9.94 `EXIT' -- Exit the program with status.
  ============================================
  
  _Description_:
!      `EXIT' causes immediate termination of the program with status.
!      If status is omitted it returns the canonical _success_ for the
       system.  All Fortran I/O units are closed.
  
  _Standard_:
--- 10000,10011 ----
  
  File: gfortran.info,  Node: EXIT,  Next: EXP,  Prev: EXECUTE_COMMAND_LINE,  Up: Intrinsic Procedures
  
! 9.94 'EXIT' -- Exit the program with status.
  ============================================
  
  _Description_:
!      'EXIT' causes immediate termination of the program with status.  If
!      status is omitted it returns the canonical _success_ for the
       system.  All Fortran I/O units are closed.
  
  _Standard_:
*************** _Class_:
*** 10105,10117 ****
       Subroutine
  
  _Syntax_:
!      `CALL EXIT([STATUS])'
  
  _Arguments_:
!      STATUS     Shall be an `INTEGER' of the default kind.
  
  _Return value_:
!      `STATUS' is passed to the parent process on exit.
  
  _Example_:
            program test_exit
--- 10015,10027 ----
       Subroutine
  
  _Syntax_:
!      'CALL EXIT([STATUS])'
  
  _Arguments_:
!      STATUS      Shall be an 'INTEGER' of the default kind.
  
  _Return value_:
!      'STATUS' is passed to the parent process on exit.
  
  _Example_:
            program test_exit
*************** _See also_:
*** 10126,10136 ****
  
  File: gfortran.info,  Node: EXP,  Next: EXPONENT,  Prev: EXIT,  Up: Intrinsic Procedures
  
! 9.95 `EXP' -- Exponential function
  ==================================
  
  _Description_:
!      `EXP(X)' computes the base e exponential of X.
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
--- 10036,10046 ----
  
  File: gfortran.info,  Node: EXP,  Next: EXPONENT,  Prev: EXIT,  Up: Intrinsic Procedures
  
! 9.95 'EXP' -- Exponential function
  ==================================
  
  _Description_:
!      'EXP(X)' computes the base e exponential of X.
  
  _Standard_:
       Fortran 77 and later, has overloads that are GNU extensions
*************** _Class_:
*** 10139,10148 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = EXP(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
--- 10049,10058 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = EXP(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
*************** _Example_:
*** 10154,10179 ****
            end program test_exp
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `EXP(X)'      `REAL(4) X'   `REAL(4)'     Fortran 77 and
!                                                later
!      `DEXP(X)'     `REAL(8) X'   `REAL(8)'     Fortran 77 and
!                                                later
!      `CEXP(X)'     `COMPLEX(4)   `COMPLEX(4)'  Fortran 77 and
!                    X'                          later
!      `ZEXP(X)'     `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    X'                          
!      `CDEXP(X)'    `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    X'                          
  
  
  File: gfortran.info,  Node: EXPONENT,  Next: EXTENDS_TYPE_OF,  Prev: EXP,  Up: Intrinsic Procedures
  
! 9.96 `EXPONENT' -- Exponent function
  ====================================
  
  _Description_:
!      `EXPONENT(X)' returns the value of the exponent part of X. If X is
       zero the value returned is zero.
  
  _Standard_:
--- 10064,10089 ----
            end program test_exp
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'EXP(X)'       'REAL(4) X'    'REAL(4)'      Fortran 77 and
!                                                   later
!      'DEXP(X)'      'REAL(8) X'    'REAL(8)'      Fortran 77 and
!                                                   later
!      'CEXP(X)'      'COMPLEX(4)    'COMPLEX(4)'   Fortran 77 and
!                     X'                            later
!      'ZEXP(X)'      'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     X'
!      'CDEXP(X)'     'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     X'
  
  
  File: gfortran.info,  Node: EXPONENT,  Next: EXTENDS_TYPE_OF,  Prev: EXP,  Up: Intrinsic Procedures
  
! 9.96 'EXPONENT' -- Exponent function
  ====================================
  
  _Description_:
!      'EXPONENT(X)' returns the value of the exponent part of X.  If X is
       zero the value returned is zero.
  
  _Standard_:
*************** _Class_:
*** 10183,10195 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = EXPONENT(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type default `INTEGER'.
  
  _Example_:
            program test_exponent
--- 10093,10105 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = EXPONENT(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type default 'INTEGER'.
  
  _Example_:
            program test_exponent
*************** _Example_:
*** 10203,10210 ****
  
  File: gfortran.info,  Node: EXTENDS_TYPE_OF,  Next: FDATE,  Prev: EXPONENT,  Up: Intrinsic Procedures
  
! 9.97 `EXTENDS_TYPE_OF' --  Query dynamic type for extension
! ===========================================================
  
  _Description_:
       Query dynamic type for extension.
--- 10113,10120 ----
  
  File: gfortran.info,  Node: EXTENDS_TYPE_OF,  Next: FDATE,  Prev: EXPONENT,  Up: Intrinsic Procedures
  
! 9.97 'EXTENDS_TYPE_OF' -- Query dynamic type for extension
! ==========================================================
  
  _Description_:
       Query dynamic type for extension.
*************** _Class_:
*** 10216,10231 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = EXTENDS_TYPE_OF(A, MOLD)'
  
  _Arguments_:
!      A          Shall be an object of extensible declared type
!                 or unlimited polymorphic.
!      MOLD       Shall be an object of extensible declared type
!                 or unlimited polymorphic.
  
  _Return value_:
!      The return value is a scalar of type default logical. It is true
       if and only if the dynamic type of A is an extension type of the
       dynamic type of MOLD.
  
--- 10126,10141 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = EXTENDS_TYPE_OF(A, MOLD)'
  
  _Arguments_:
!      A           Shall be an object of extensible declared type
!                  or unlimited polymorphic.
!      MOLD        Shall be an object of extensible declared type
!                  or unlimited polymorphic.
  
  _Return value_:
!      The return value is a scalar of type default logical.  It is true
       if and only if the dynamic type of A is an extension type of the
       dynamic type of MOLD.
  
*************** _See also_:
*** 10235,10246 ****
  
  File: gfortran.info,  Node: FDATE,  Next: FGET,  Prev: EXTENDS_TYPE_OF,  Up: Intrinsic Procedures
  
! 9.98 `FDATE' -- Get the current time as a string
  ================================================
  
  _Description_:
!      `FDATE(DATE)' returns the current date (using the same format as
!      `CTIME') in DATE. It is equivalent to `CALL CTIME(DATE, TIME())'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 10145,10156 ----
  
  File: gfortran.info,  Node: FDATE,  Next: FGET,  Prev: EXTENDS_TYPE_OF,  Up: Intrinsic Procedures
  
! 9.98 'FDATE' -- Get the current time as a string
  ================================================
  
  _Description_:
!      'FDATE(DATE)' returns the current date (using the same format as
!      'CTIME') in DATE.  It is equivalent to 'CALL CTIME(DATE, TIME())'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 10252,10267 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FDATE(DATE)'.
!      `DATE = FDATE()'.
  
  _Arguments_:
!      DATE       The type shall be of type `CHARACTER' of the
!                 default kind. It is an `INTENT(OUT)' argument.
!                 If the length of this variable is too short
!                 for the date and time string to fit
!                 completely, it will be blank on procedure
!                 return.
  
  _Return value_:
       The current date and time as a string.
--- 10162,10176 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FDATE(DATE)'.
!      'DATE = FDATE()'.
  
  _Arguments_:
!      DATE        The type shall be of type 'CHARACTER' of the
!                  default kind.  It is an 'INTENT(OUT)' argument.
!                  If the length of this variable is too short for
!                  the date and time string to fit completely, it
!                  will be blank on procedure return.
  
  _Return value_:
       The current date and time as a string.
*************** _See also_:
*** 10285,10307 ****
  
  File: gfortran.info,  Node: FGET,  Next: FGETC,  Prev: FDATE,  Up: Intrinsic Procedures
  
! 9.99 `FGET' -- Read a single character in stream mode from stdin
  ================================================================
  
  _Description_:
       Read a single character in stream mode from stdin by bypassing
!      normal formatted output. Stream I/O should not be mixed with
       normal record-oriented (formatted or unformatted) I/O on the same
       unit; the results are unpredictable.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the `FGET' intrinsic is provided for backwards
!      compatibility with `g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new
!      stream IO feature in new code for future portability. See also
!      *note Fortran 2003 status::.
  
  _Standard_:
       GNU extension
--- 10194,10216 ----
  
  File: gfortran.info,  Node: FGET,  Next: FGETC,  Prev: FDATE,  Up: Intrinsic Procedures
  
! 9.99 'FGET' -- Read a single character in stream mode from stdin
  ================================================================
  
  _Description_:
       Read a single character in stream mode from stdin by bypassing
!      normal formatted output.  Stream I/O should not be mixed with
       normal record-oriented (formatted or unformatted) I/O on the same
       unit; the results are unpredictable.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the 'FGET' intrinsic is provided for backwards
!      compatibility with 'g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new stream
!      IO feature in new code for future portability.  See also *note
!      Fortran 2003 status::.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10310,10324 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FGET(C [, STATUS])'
!      `STATUS = FGET(C)'
  
  _Arguments_:
!      C          The type shall be `CHARACTER' and of default
!                 kind.
!      STATUS     (Optional) status flag of type `INTEGER'.
!                 Returns 0 on success, -1 on end-of-file, and a
!                 system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fget
--- 10219,10233 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FGET(C [, STATUS])'
!      'STATUS = FGET(C)'
  
  _Arguments_:
!      C           The type shall be 'CHARACTER' and of default
!                  kind.
!      STATUS      (Optional) status flag of type 'INTEGER'.
!                  Returns 0 on success, -1 on end-of-file, and a
!                  system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fget
*************** _See also_:
*** 10341,10347 ****
  
  File: gfortran.info,  Node: FGETC,  Next: FLOOR,  Prev: FGET,  Up: Intrinsic Procedures
  
! 9.100 `FGETC' -- Read a single character in stream mode
  =======================================================
  
  _Description_:
--- 10250,10256 ----
  
  File: gfortran.info,  Node: FGETC,  Next: FLOOR,  Prev: FGET,  Up: Intrinsic Procedures
  
! 9.100 'FGETC' -- Read a single character in stream mode
  =======================================================
  
  _Description_:
*************** _Description_:
*** 10353,10363 ****
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the `FGET' intrinsic is provided for backwards
!      compatibility with `g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new
!      stream IO feature in new code for future portability. See also
!      *note Fortran 2003 status::.
  
  _Standard_:
       GNU extension
--- 10262,10272 ----
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the 'FGET' intrinsic is provided for backwards
!      compatibility with 'g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new stream
!      IO feature in new code for future portability.  See also *note
!      Fortran 2003 status::.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10366,10381 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FGETC(UNIT, C [, STATUS])'
!      `STATUS = FGETC(UNIT, C)'
  
  _Arguments_:
!      UNIT       The type shall be `INTEGER'.
!      C          The type shall be `CHARACTER' and of default
!                 kind.
!      STATUS     (Optional) status flag of type `INTEGER'.
!                 Returns 0 on success, -1 on end-of-file and a
!                 system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fgetc
--- 10275,10290 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FGETC(UNIT, C [, STATUS])'
!      'STATUS = FGETC(UNIT, C)'
  
  _Arguments_:
!      UNIT        The type shall be 'INTEGER'.
!      C           The type shall be 'CHARACTER' and of default
!                  kind.
!      STATUS      (Optional) status flag of type 'INTEGER'.
!                  Returns 0 on success, -1 on end-of-file and a
!                  system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fgetc
*************** _See also_:
*** 10397,10407 ****
  
  File: gfortran.info,  Node: FLOOR,  Next: FLUSH,  Prev: FGETC,  Up: Intrinsic Procedures
  
! 9.101 `FLOOR' -- Integer floor function
  =======================================
  
  _Description_:
!      `FLOOR(A)' returns the greatest integer less than or equal to X.
  
  _Standard_:
       Fortran 95 and later
--- 10306,10316 ----
  
  File: gfortran.info,  Node: FLOOR,  Next: FLUSH,  Prev: FGETC,  Up: Intrinsic Procedures
  
! 9.101 'FLOOR' -- Integer floor function
  =======================================
  
  _Description_:
!      'FLOOR(A)' returns the greatest integer less than or equal to X.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 10410,10426 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = FLOOR(A [, KIND])'
  
  _Arguments_:
!      A          The type shall be `REAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER(KIND)' if KIND is present and
!      of default-kind `INTEGER' otherwise.
  
  _Example_:
            program test_floor
--- 10319,10335 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = FLOOR(A [, KIND])'
  
  _Arguments_:
!      A           The type shall be 'REAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER(KIND)' if KIND is present and
!      of default-kind 'INTEGER' otherwise.
  
  _Example_:
            program test_floor
*************** _Example_:
*** 10433,10447 ****
  _See also_:
       *note CEILING::, *note NINT::
  
- 
  
  File: gfortran.info,  Node: FLUSH,  Next: FNUM,  Prev: FLOOR,  Up: Intrinsic Procedures
  
! 9.102 `FLUSH' -- Flush I/O unit(s)
  ==================================
  
  _Description_:
!      Flushes Fortran unit(s) currently open for output. Without the
       optional argument, all units are flushed, otherwise just the unit
       specified.
  
--- 10342,10355 ----
  _See also_:
       *note CEILING::, *note NINT::
  
  
  File: gfortran.info,  Node: FLUSH,  Next: FNUM,  Prev: FLOOR,  Up: Intrinsic Procedures
  
! 9.102 'FLUSH' -- Flush I/O unit(s)
  ==================================
  
  _Description_:
!      Flushes Fortran unit(s) currently open for output.  Without the
       optional argument, all units are flushed, otherwise just the unit
       specified.
  
*************** _Class_:
*** 10452,10475 ****
       Subroutine
  
  _Syntax_:
!      `CALL FLUSH(UNIT)'
  
  _Arguments_:
!      UNIT       (Optional) The type shall be `INTEGER'.
  
  _Note_:
!      Beginning with the Fortran 2003 standard, there is a `FLUSH'
!      statement that should be preferred over the `FLUSH' intrinsic.
  
!      The `FLUSH' intrinsic and the Fortran 2003 `FLUSH' statement have
       identical effect: they flush the runtime library's I/O buffer so
!      that the data becomes visible to other processes. This does not
       guarantee that the data is committed to disk.
  
!      On POSIX systems, you can request that all data is transferred  to
!      the storage device by calling the `fsync' function, with the POSIX
       file descriptor of the I/O unit as argument (retrieved with GNU
!      intrinsic `FNUM'). The following example shows how:
  
              ! Declare the interface for POSIX fsync function
              interface
--- 10360,10383 ----
       Subroutine
  
  _Syntax_:
!      'CALL FLUSH(UNIT)'
  
  _Arguments_:
!      UNIT        (Optional) The type shall be 'INTEGER'.
  
  _Note_:
!      Beginning with the Fortran 2003 standard, there is a 'FLUSH'
!      statement that should be preferred over the 'FLUSH' intrinsic.
  
!      The 'FLUSH' intrinsic and the Fortran 2003 'FLUSH' statement have
       identical effect: they flush the runtime library's I/O buffer so
!      that the data becomes visible to other processes.  This does not
       guarantee that the data is committed to disk.
  
!      On POSIX systems, you can request that all data is transferred to
!      the storage device by calling the 'fsync' function, with the POSIX
       file descriptor of the I/O unit as argument (retrieved with GNU
!      intrinsic 'FNUM').  The following example shows how:
  
              ! Declare the interface for POSIX fsync function
              interface
*************** _Note_:
*** 10497,10512 ****
              ! Handle possible error
              if (ret /= 0) stop "Error calling FSYNC"
  
- 
  
  File: gfortran.info,  Node: FNUM,  Next: FPUT,  Prev: FLUSH,  Up: Intrinsic Procedures
  
! 9.103 `FNUM' -- File number function
  ====================================
  
  _Description_:
!      `FNUM(UNIT)' returns the POSIX file descriptor number
!      corresponding to the open Fortran I/O unit `UNIT'.
  
  _Standard_:
       GNU extension
--- 10405,10419 ----
              ! Handle possible error
              if (ret /= 0) stop "Error calling FSYNC"
  
  
  File: gfortran.info,  Node: FNUM,  Next: FPUT,  Prev: FLUSH,  Up: Intrinsic Procedures
  
! 9.103 'FNUM' -- File number function
  ====================================
  
  _Description_:
!      'FNUM(UNIT)' returns the POSIX file descriptor number corresponding
!      to the open Fortran I/O unit 'UNIT'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10515,10527 ****
       Function
  
  _Syntax_:
!      `RESULT = FNUM(UNIT)'
  
  _Arguments_:
!      UNIT       The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER'
  
  _Example_:
            program test_fnum
--- 10422,10434 ----
       Function
  
  _Syntax_:
!      'RESULT = FNUM(UNIT)'
  
  _Arguments_:
!      UNIT        The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER'
  
  _Example_:
            program test_fnum
*************** _Example_:
*** 10535,10557 ****
  
  File: gfortran.info,  Node: FPUT,  Next: FPUTC,  Prev: FNUM,  Up: Intrinsic Procedures
  
! 9.104 `FPUT' -- Write a single character in stream mode to stdout
  =================================================================
  
  _Description_:
       Write a single character in stream mode to stdout by bypassing
!      normal formatted output. Stream I/O should not be mixed with
       normal record-oriented (formatted or unformatted) I/O on the same
       unit; the results are unpredictable.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the `FGET' intrinsic is provided for backwards
!      compatibility with `g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new
!      stream IO feature in new code for future portability. See also
!      *note Fortran 2003 status::.
  
  _Standard_:
       GNU extension
--- 10442,10464 ----
  
  File: gfortran.info,  Node: FPUT,  Next: FPUTC,  Prev: FNUM,  Up: Intrinsic Procedures
  
! 9.104 'FPUT' -- Write a single character in stream mode to stdout
  =================================================================
  
  _Description_:
       Write a single character in stream mode to stdout by bypassing
!      normal formatted output.  Stream I/O should not be mixed with
       normal record-oriented (formatted or unformatted) I/O on the same
       unit; the results are unpredictable.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the 'FGET' intrinsic is provided for backwards
!      compatibility with 'g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new stream
!      IO feature in new code for future portability.  See also *note
!      Fortran 2003 status::.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10560,10574 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FPUT(C [, STATUS])'
!      `STATUS = FPUT(C)'
  
  _Arguments_:
!      C          The type shall be `CHARACTER' and of default
!                 kind.
!      STATUS     (Optional) status flag of type `INTEGER'.
!                 Returns 0 on success, -1 on end-of-file and a
!                 system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fput
--- 10467,10481 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FPUT(C [, STATUS])'
!      'STATUS = FPUT(C)'
  
  _Arguments_:
!      C           The type shall be 'CHARACTER' and of default
!                  kind.
!      STATUS      (Optional) status flag of type 'INTEGER'.
!                  Returns 0 on success, -1 on end-of-file and a
!                  system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fput
*************** _See also_:
*** 10585,10607 ****
  
  File: gfortran.info,  Node: FPUTC,  Next: FRACTION,  Prev: FPUT,  Up: Intrinsic Procedures
  
! 9.105 `FPUTC' -- Write a single character in stream mode
  ========================================================
  
  _Description_:
       Write a single character in stream mode by bypassing normal
!      formatted output. Stream I/O should not be mixed with normal
       record-oriented (formatted or unformatted) I/O on the same unit;
       the results are unpredictable.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the `FGET' intrinsic is provided for backwards
!      compatibility with `g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new
!      stream IO feature in new code for future portability. See also
!      *note Fortran 2003 status::.
  
  _Standard_:
       GNU extension
--- 10492,10514 ----
  
  File: gfortran.info,  Node: FPUTC,  Next: FRACTION,  Prev: FPUT,  Up: Intrinsic Procedures
  
! 9.105 'FPUTC' -- Write a single character in stream mode
  ========================================================
  
  _Description_:
       Write a single character in stream mode by bypassing normal
!      formatted output.  Stream I/O should not be mixed with normal
       record-oriented (formatted or unformatted) I/O on the same unit;
       the results are unpredictable.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the 'FGET' intrinsic is provided for backwards
!      compatibility with 'g77'.  GNU Fortran provides the Fortran 2003
!      Stream facility.  Programmers should consider the use of new stream
!      IO feature in new code for future portability.  See also *note
!      Fortran 2003 status::.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10610,10625 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FPUTC(UNIT, C [, STATUS])'
!      `STATUS = FPUTC(UNIT, C)'
  
  _Arguments_:
!      UNIT       The type shall be `INTEGER'.
!      C          The type shall be `CHARACTER' and of default
!                 kind.
!      STATUS     (Optional) status flag of type `INTEGER'.
!                 Returns 0 on success, -1 on end-of-file and a
!                 system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fputc
--- 10517,10532 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FPUTC(UNIT, C [, STATUS])'
!      'STATUS = FPUTC(UNIT, C)'
  
  _Arguments_:
!      UNIT        The type shall be 'INTEGER'.
!      C           The type shall be 'CHARACTER' and of default
!                  kind.
!      STATUS      (Optional) status flag of type 'INTEGER'.
!                  Returns 0 on success, -1 on end-of-file and a
!                  system specific positive error code otherwise.
  
  _Example_:
            PROGRAM test_fputc
*************** _See also_:
*** 10639,10650 ****
  
  File: gfortran.info,  Node: FRACTION,  Next: FREE,  Prev: FPUTC,  Up: Intrinsic Procedures
  
! 9.106 `FRACTION' -- Fractional part of the model representation
  ===============================================================
  
  _Description_:
!      `FRACTION(X)' returns the fractional part of the model
!      representation of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 10546,10557 ----
  
  File: gfortran.info,  Node: FRACTION,  Next: FREE,  Prev: FPUTC,  Up: Intrinsic Procedures
  
! 9.106 'FRACTION' -- Fractional part of the model representation
  ===============================================================
  
  _Description_:
!      'FRACTION(X)' returns the fractional part of the model
!      representation of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 10653,10667 ****
       Elemental function
  
  _Syntax_:
!      `Y = FRACTION(X)'
  
  _Arguments_:
!      X          The type of the argument shall be a `REAL'.
  
  _Return value_:
!      The return value is of the same type and kind as the argument.
!      The fractional part of the model representation of `X' is returned;
!      it is `X * RADIX(X)**(-EXPONENT(X))'.
  
  _Example_:
            program test_fraction
--- 10560,10574 ----
       Elemental function
  
  _Syntax_:
!      'Y = FRACTION(X)'
  
  _Arguments_:
!      X           The type of the argument shall be a 'REAL'.
  
  _Return value_:
!      The return value is of the same type and kind as the argument.  The
!      fractional part of the model representation of 'X' is returned; it
!      is 'X * RADIX(X)**(-EXPONENT(X))'.
  
  _Example_:
            program test_fraction
*************** _Example_:
*** 10670,10688 ****
              print *, fraction(x), x * radix(x)**(-exponent(x))
            end program test_fraction
  
- 
  
  File: gfortran.info,  Node: FREE,  Next: FSEEK,  Prev: FRACTION,  Up: Intrinsic Procedures
  
! 9.107 `FREE' -- Frees memory
  ============================
  
  _Description_:
!      Frees memory previously allocated by `MALLOC'. The `FREE'
       intrinsic is an extension intended to be used with Cray pointers,
       and is provided in GNU Fortran to allow user to compile legacy
!      code. For new code using Fortran 95 pointers, the memory
!      de-allocation intrinsic is `DEALLOCATE'.
  
  _Standard_:
       GNU extension
--- 10577,10594 ----
              print *, fraction(x), x * radix(x)**(-exponent(x))
            end program test_fraction
  
  
  File: gfortran.info,  Node: FREE,  Next: FSEEK,  Prev: FRACTION,  Up: Intrinsic Procedures
  
! 9.107 'FREE' -- Frees memory
  ============================
  
  _Description_:
!      Frees memory previously allocated by 'MALLOC'.  The 'FREE'
       intrinsic is an extension intended to be used with Cray pointers,
       and is provided in GNU Fortran to allow user to compile legacy
!      code.  For new code using Fortran 95 pointers, the memory
!      de-allocation intrinsic is 'DEALLOCATE'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10691,10708 ****
       Subroutine
  
  _Syntax_:
!      `CALL FREE(PTR)'
  
  _Arguments_:
!      PTR        The type shall be `INTEGER'. It represents the
!                 location of the memory that should be
!                 de-allocated.
  
  _Return value_:
       None
  
  _Example_:
!      See `MALLOC' for an example.
  
  _See also_:
       *note MALLOC::
--- 10597,10614 ----
       Subroutine
  
  _Syntax_:
!      'CALL FREE(PTR)'
  
  _Arguments_:
!      PTR         The type shall be 'INTEGER'.  It represents the
!                  location of the memory that should be
!                  de-allocated.
  
  _Return value_:
       None
  
  _Example_:
!      See 'MALLOC' for an example.
  
  _See also_:
       *note MALLOC::
*************** _See also_:
*** 10710,10729 ****
  
  File: gfortran.info,  Node: FSEEK,  Next: FSTAT,  Prev: FREE,  Up: Intrinsic Procedures
  
! 9.108 `FSEEK' -- Low level file positioning subroutine
  ======================================================
  
  _Description_:
!      Moves UNIT to the specified OFFSET. If WHENCE is set to 0, the
!      OFFSET is taken as an absolute value `SEEK_SET', if set to 1,
!      OFFSET is taken to be relative to the current position `SEEK_CUR',
!      and if set to 2 relative to the end of the file `SEEK_END'.  On
!      error, STATUS is set to a nonzero value. If STATUS the seek fails
       silently.
  
       This intrinsic routine is not fully backwards compatible with
!      `g77'.  In `g77', the `FSEEK' takes a statement label instead of a
!      STATUS variable. If FSEEK is used in old code, change
              CALL FSEEK(UNIT, OFFSET, WHENCE, *label)
       to
              INTEGER :: status
--- 10616,10635 ----
  
  File: gfortran.info,  Node: FSEEK,  Next: FSTAT,  Prev: FREE,  Up: Intrinsic Procedures
  
! 9.108 'FSEEK' -- Low level file positioning subroutine
  ======================================================
  
  _Description_:
!      Moves UNIT to the specified OFFSET.  If WHENCE is set to 0, the
!      OFFSET is taken as an absolute value 'SEEK_SET', if set to 1,
!      OFFSET is taken to be relative to the current position 'SEEK_CUR',
!      and if set to 2 relative to the end of the file 'SEEK_END'.  On
!      error, STATUS is set to a nonzero value.  If STATUS the seek fails
       silently.
  
       This intrinsic routine is not fully backwards compatible with
!      'g77'.  In 'g77', the 'FSEEK' takes a statement label instead of a
!      STATUS variable.  If FSEEK is used in old code, change
              CALL FSEEK(UNIT, OFFSET, WHENCE, *label)
       to
              INTEGER :: status
*************** _Description_:
*** 10732,10738 ****
  
       Please note that GNU Fortran provides the Fortran 2003 Stream
       facility.  Programmers should consider the use of new stream IO
!      feature in new code for future portability. See also *note Fortran
       2003 status::.
  
  _Standard_:
--- 10638,10644 ----
  
       Please note that GNU Fortran provides the Fortran 2003 Stream
       facility.  Programmers should consider the use of new stream IO
!      feature in new code for future portability.  See also *note Fortran
       2003 status::.
  
  _Standard_:
*************** _Class_:
*** 10742,10756 ****
       Subroutine
  
  _Syntax_:
!      `CALL FSEEK(UNIT, OFFSET, WHENCE[, STATUS])'
  
  _Arguments_:
!      UNIT       Shall be a scalar of type `INTEGER'.
!      OFFSET     Shall be a scalar of type `INTEGER'.
!      WHENCE     Shall be a scalar of type `INTEGER'.  Its
!                 value shall be either 0, 1 or 2.
!      STATUS     (Optional) shall be a scalar of type
!                 `INTEGER(4)'.
  
  _Example_:
            PROGRAM test_fseek
--- 10648,10662 ----
       Subroutine
  
  _Syntax_:
!      'CALL FSEEK(UNIT, OFFSET, WHENCE[, STATUS])'
  
  _Arguments_:
!      UNIT        Shall be a scalar of type 'INTEGER'.
!      OFFSET      Shall be a scalar of type 'INTEGER'.
!      WHENCE      Shall be a scalar of type 'INTEGER'.  Its value
!                  shall be either 0, 1 or 2.
!      STATUS      (Optional) shall be a scalar of type
!                  'INTEGER(4)'.
  
  _Example_:
            PROGRAM test_fseek
*************** _See also_:
*** 10780,10793 ****
  
  File: gfortran.info,  Node: FSTAT,  Next: FTELL,  Prev: FSEEK,  Up: Intrinsic Procedures
  
! 9.109 `FSTAT' -- Get file status
  ================================
  
  _Description_:
!      `FSTAT' is identical to *note STAT::, except that information
!      about an already opened file is obtained.
  
!      The elements in `VALUES' are the same as described by *note STAT::.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 10686,10699 ----
  
  File: gfortran.info,  Node: FSTAT,  Next: FTELL,  Prev: FSEEK,  Up: Intrinsic Procedures
  
! 9.109 'FSTAT' -- Get file status
  ================================
  
  _Description_:
!      'FSTAT' is identical to *note STAT::, except that information about
!      an already opened file is obtained.
  
!      The elements in 'VALUES' are the same as described by *note STAT::.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 10799,10813 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FSTAT(UNIT, VALUES [, STATUS])'
!      `STATUS = FSTAT(UNIT, VALUES)'
  
  _Arguments_:
!      UNIT       An open I/O unit number of type `INTEGER'.
!      VALUES     The type shall be `INTEGER(4), DIMENSION(13)'.
!      STATUS     (Optional) status flag of type `INTEGER(4)'.
!                 Returns 0 on success and a system specific
!                 error code otherwise.
  
  _Example_:
       See *note STAT:: for an example.
--- 10705,10719 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FSTAT(UNIT, VALUES [, STATUS])'
!      'STATUS = FSTAT(UNIT, VALUES)'
  
  _Arguments_:
!      UNIT        An open I/O unit number of type 'INTEGER'.
!      VALUES      The type shall be 'INTEGER(4), DIMENSION(13)'.
!      STATUS      (Optional) status flag of type 'INTEGER(4)'.
!                  Returns 0 on success and a system specific error
!                  code otherwise.
  
  _Example_:
       See *note STAT:: for an example.
*************** _See also_:
*** 10818,10824 ****
  
  File: gfortran.info,  Node: FTELL,  Next: GAMMA,  Prev: FSTAT,  Up: Intrinsic Procedures
  
! 9.110 `FTELL' -- Current stream position
  ========================================
  
  _Description_:
--- 10724,10730 ----
  
  File: gfortran.info,  Node: FTELL,  Next: GAMMA,  Prev: FSTAT,  Up: Intrinsic Procedures
  
! 9.110 'FTELL' -- Current stream position
  ========================================
  
  _Description_:
*************** _Class_:
*** 10834,10845 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL FTELL(UNIT, OFFSET)'
!      `OFFSET = FTELL(UNIT)'
  
  _Arguments_:
!      OFFSET     Shall of type `INTEGER'.
!      UNIT       Shall of type `INTEGER'.
  
  _Return value_:
       In either syntax, OFFSET is set to the current offset of unit
--- 10740,10751 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL FTELL(UNIT, OFFSET)'
!      'OFFSET = FTELL(UNIT)'
  
  _Arguments_:
!      OFFSET      Shall of type 'INTEGER'.
!      UNIT        Shall of type 'INTEGER'.
  
  _Return value_:
       In either syntax, OFFSET is set to the current offset of unit
*************** _See also_:
*** 10859,10871 ****
  
  File: gfortran.info,  Node: GAMMA,  Next: GERROR,  Prev: FTELL,  Up: Intrinsic Procedures
  
! 9.111 `GAMMA' -- Gamma function
  ===============================
  
  _Description_:
!      `GAMMA(X)' computes Gamma (\Gamma) of X. For positive, integer
!      values of X the Gamma function simplifies to the factorial
!      function \Gamma(x)=(x-1)!.
  
  _Standard_:
       Fortran 2008 and later
--- 10765,10777 ----
  
  File: gfortran.info,  Node: GAMMA,  Next: GERROR,  Prev: FTELL,  Up: Intrinsic Procedures
  
! 9.111 'GAMMA' -- Gamma function
  ===============================
  
  _Description_:
!      'GAMMA(X)' computes Gamma (\Gamma) of X.  For positive, integer
!      values of X the Gamma function simplifies to the factorial function
!      \Gamma(x)=(x-1)!.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 10874,10887 ****
       Elemental function
  
  _Syntax_:
!      `X = GAMMA(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL' and neither zero nor a
!                 negative integer.
  
  _Return value_:
!      The return value is of type `REAL' of the same kind as X.
  
  _Example_:
            program test_gamma
--- 10780,10793 ----
       Elemental function
  
  _Syntax_:
!      'X = GAMMA(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL' and neither zero nor a
!                  negative integer.
  
  _Return value_:
!      The return value is of type 'REAL' of the same kind as X.
  
  _Example_:
            program test_gamma
*************** _Example_:
*** 10890,10912 ****
            end program test_gamma
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `GAMMA(X)'    `REAL(4) X'   `REAL(4)'     GNU Extension
!      `DGAMMA(X)'   `REAL(8) X'   `REAL(8)'     GNU Extension
  
  _See also_:
       Logarithm of the Gamma function: *note LOG_GAMMA::
  
- 
  
  File: gfortran.info,  Node: GERROR,  Next: GETARG,  Prev: GAMMA,  Up: Intrinsic Procedures
  
! 9.112 `GERROR' -- Get last system error message
  ===============================================
  
  _Description_:
       Returns the system error message corresponding to the last system
!      error.  This resembles the functionality of `strerror(3)' in C.
  
  _Standard_:
       GNU extension
--- 10796,10817 ----
            end program test_gamma
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'GAMMA(X)'     'REAL(4) X'    'REAL(4)'      GNU Extension
!      'DGAMMA(X)'    'REAL(8) X'    'REAL(8)'      GNU Extension
  
  _See also_:
       Logarithm of the Gamma function: *note LOG_GAMMA::
  
  
  File: gfortran.info,  Node: GERROR,  Next: GETARG,  Prev: GAMMA,  Up: Intrinsic Procedures
  
! 9.112 'GERROR' -- Get last system error message
  ===============================================
  
  _Description_:
       Returns the system error message corresponding to the last system
!      error.  This resembles the functionality of 'strerror(3)' in C.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 10915,10924 ****
       Subroutine
  
  _Syntax_:
!      `CALL GERROR(RESULT)'
  
  _Arguments_:
!      RESULT     Shall of type `CHARACTER' and of default
  
  _Example_:
            PROGRAM test_gerror
--- 10820,10829 ----
       Subroutine
  
  _Syntax_:
!      'CALL GERROR(RESULT)'
  
  _Arguments_:
!      RESULT      Shall of type 'CHARACTER' and of default
  
  _Example_:
            PROGRAM test_gerror
*************** _See also_:
*** 10933,10939 ****
  
  File: gfortran.info,  Node: GETARG,  Next: GET_COMMAND,  Prev: GERROR,  Up: Intrinsic Procedures
  
! 9.113 `GETARG' -- Get command line arguments
  ============================================
  
  _Description_:
--- 10838,10844 ----
  
  File: gfortran.info,  Node: GETARG,  Next: GET_COMMAND,  Prev: GERROR,  Up: Intrinsic Procedures
  
! 9.113 'GETARG' -- Get command line arguments
  ============================================
  
  _Description_:
*************** _Class_:
*** 10952,10970 ****
       Subroutine
  
  _Syntax_:
!      `CALL GETARG(POS, VALUE)'
  
  _Arguments_:
!      POS        Shall be of type `INTEGER' and not wider than
!                 the default integer kind; POS \geq 0
!      VALUE      Shall be of type `CHARACTER' and of default
!                 kind.
!      VALUE      Shall be of type `CHARACTER'.
  
  _Return value_:
!      After `GETARG' returns, the VALUE argument holds the POSth command
!      line argument. If VALUE can not hold the argument, it is truncated
!      to fit the length of VALUE. If there are less than POS arguments
       specified at the command line, VALUE will be filled with blanks.
       If POS = 0, VALUE is set to the name of the program (on systems
       that support this feature).
--- 10857,10875 ----
       Subroutine
  
  _Syntax_:
!      'CALL GETARG(POS, VALUE)'
  
  _Arguments_:
!      POS         Shall be of type 'INTEGER' and not wider than
!                  the default integer kind; POS \geq 0
!      VALUE       Shall be of type 'CHARACTER' and of default
!                  kind.
!      VALUE       Shall be of type 'CHARACTER'.
  
  _Return value_:
!      After 'GETARG' returns, the VALUE argument holds the POSth command
!      line argument.  If VALUE can not hold the argument, it is truncated
!      to fit the length of VALUE.  If there are less than POS arguments
       specified at the command line, VALUE will be filled with blanks.
       If POS = 0, VALUE is set to the name of the program (on systems
       that support this feature).
*************** _See also_:
*** 10989,10995 ****
  
  File: gfortran.info,  Node: GET_COMMAND,  Next: GET_COMMAND_ARGUMENT,  Prev: GETARG,  Up: Intrinsic Procedures
  
! 9.114 `GET_COMMAND' -- Get the entire command line
  ==================================================
  
  _Description_:
--- 10894,10900 ----
  
  File: gfortran.info,  Node: GET_COMMAND,  Next: GET_COMMAND_ARGUMENT,  Prev: GETARG,  Up: Intrinsic Procedures
  
! 9.114 'GET_COMMAND' -- Get the entire command line
  ==================================================
  
  _Description_:
*************** _Class_:
*** 11003,11022 ****
       Subroutine
  
  _Syntax_:
!      `CALL GET_COMMAND([COMMAND, LENGTH, STATUS])'
  
  _Arguments_:
!      COMMAND    (Optional) shall be of type `CHARACTER' and of
!                 default kind.
!      LENGTH     (Optional) Shall be of type `INTEGER' and of
!                 default kind.
!      STATUS     (Optional) Shall be of type `INTEGER' and of
!                 default kind.
  
  _Return value_:
       If COMMAND is present, stores the entire command line that was used
!      to invoke the program in COMMAND. If LENGTH is present, it is
!      assigned the length of the command line. If STATUS is present, it
       is assigned 0 upon success of the command, -1 if COMMAND is too
       short to store the command line, or a positive value in case of an
       error.
--- 10908,10927 ----
       Subroutine
  
  _Syntax_:
!      'CALL GET_COMMAND([COMMAND, LENGTH, STATUS])'
  
  _Arguments_:
!      COMMAND     (Optional) shall be of type 'CHARACTER' and of
!                  default kind.
!      LENGTH      (Optional) Shall be of type 'INTEGER' and of
!                  default kind.
!      STATUS      (Optional) Shall be of type 'INTEGER' and of
!                  default kind.
  
  _Return value_:
       If COMMAND is present, stores the entire command line that was used
!      to invoke the program in COMMAND.  If LENGTH is present, it is
!      assigned the length of the command line.  If STATUS is present, it
       is assigned 0 upon success of the command, -1 if COMMAND is too
       short to store the command line, or a positive value in case of an
       error.
*************** _See also_:
*** 11034,11045 ****
  
  File: gfortran.info,  Node: GET_COMMAND_ARGUMENT,  Next: GETCWD,  Prev: GET_COMMAND,  Up: Intrinsic Procedures
  
! 9.115 `GET_COMMAND_ARGUMENT' -- Get command line arguments
  ==========================================================
  
  _Description_:
!      Retrieve the NUMBER-th argument that was passed on the command
!      line when the containing program was invoked.
  
  _Standard_:
       Fortran 2003 and later
--- 10939,10950 ----
  
  File: gfortran.info,  Node: GET_COMMAND_ARGUMENT,  Next: GETCWD,  Prev: GET_COMMAND,  Up: Intrinsic Procedures
  
! 9.115 'GET_COMMAND_ARGUMENT' -- Get command line arguments
  ==========================================================
  
  _Description_:
!      Retrieve the NUMBER-th argument that was passed on the command line
!      when the containing program was invoked.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 11048,11076 ****
       Subroutine
  
  _Syntax_:
!      `CALL GET_COMMAND_ARGUMENT(NUMBER [, VALUE, LENGTH, STATUS])'
  
  _Arguments_:
!      NUMBER     Shall be a scalar of type `INTEGER' and of
!                 default kind, NUMBER \geq 0
!      VALUE      (Optional) Shall be a scalar of type
!                 `CHARACTER' and of default kind.
!      LENGTH     (Optional) Shall be a scalar of type `INTEGER'
!                 and of default kind.
!      STATUS     (Optional) Shall be a scalar of type `INTEGER'
!                 and of default kind.
  
  _Return value_:
!      After `GET_COMMAND_ARGUMENT' returns, the VALUE argument holds the
!      NUMBER-th command line argument. If VALUE can not hold the
!      argument, it is truncated to fit the length of VALUE. If there are
       less than NUMBER arguments specified at the command line, VALUE
       will be filled with blanks.  If NUMBER = 0, VALUE is set to the
!      name of the program (on systems that support this feature). The
       LENGTH argument contains the length of the NUMBER-th command line
!      argument. If the argument retrieval fails, STATUS is a positive
!      number; if VALUE contains a truncated command line argument,
!      STATUS is -1; and otherwise the STATUS is zero.
  
  _Example_:
            PROGRAM test_get_command_argument
--- 10953,10981 ----
       Subroutine
  
  _Syntax_:
!      'CALL GET_COMMAND_ARGUMENT(NUMBER [, VALUE, LENGTH, STATUS])'
  
  _Arguments_:
!      NUMBER      Shall be a scalar of type 'INTEGER' and of
!                  default kind, NUMBER \geq 0
!      VALUE       (Optional) Shall be a scalar of type 'CHARACTER'
!                  and of default kind.
!      LENGTH      (Optional) Shall be a scalar of type 'INTEGER'
!                  and of default kind.
!      STATUS      (Optional) Shall be a scalar of type 'INTEGER'
!                  and of default kind.
  
  _Return value_:
!      After 'GET_COMMAND_ARGUMENT' returns, the VALUE argument holds the
!      NUMBER-th command line argument.  If VALUE can not hold the
!      argument, it is truncated to fit the length of VALUE.  If there are
       less than NUMBER arguments specified at the command line, VALUE
       will be filled with blanks.  If NUMBER = 0, VALUE is set to the
!      name of the program (on systems that support this feature).  The
       LENGTH argument contains the length of the NUMBER-th command line
!      argument.  If the argument retrieval fails, STATUS is a positive
!      number; if VALUE contains a truncated command line argument, STATUS
!      is -1; and otherwise the STATUS is zero.
  
  _Example_:
            PROGRAM test_get_command_argument
*************** _See also_:
*** 11093,11099 ****
  
  File: gfortran.info,  Node: GETCWD,  Next: GETENV,  Prev: GET_COMMAND_ARGUMENT,  Up: Intrinsic Procedures
  
! 9.116 `GETCWD' -- Get current working directory
  ===============================================
  
  _Description_:
--- 10998,11004 ----
  
  File: gfortran.info,  Node: GETCWD,  Next: GETENV,  Prev: GET_COMMAND_ARGUMENT,  Up: Intrinsic Procedures
  
! 9.116 'GETCWD' -- Get current working directory
  ===============================================
  
  _Description_:
*************** _Class_:
*** 11109,11123 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL GETCWD(C [, STATUS])'
!      `STATUS = GETCWD(C)'
  
  _Arguments_:
!      C          The type shall be `CHARACTER' and of default
!                 kind.
!      STATUS     (Optional) status flag. Returns 0 on success,
!                 a system specific and nonzero error code
!                 otherwise.
  
  _Example_:
            PROGRAM test_getcwd
--- 11014,11028 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL GETCWD(C [, STATUS])'
!      'STATUS = GETCWD(C)'
  
  _Arguments_:
!      C           The type shall be 'CHARACTER' and of default
!                  kind.
!      STATUS      (Optional) status flag.  Returns 0 on success, a
!                  system specific and nonzero error code
!                  otherwise.
  
  _Example_:
            PROGRAM test_getcwd
*************** _See also_:
*** 11132,11138 ****
  
  File: gfortran.info,  Node: GETENV,  Next: GET_ENVIRONMENT_VARIABLE,  Prev: GETCWD,  Up: Intrinsic Procedures
  
! 9.117 `GETENV' -- Get an environmental variable
  ===============================================
  
  _Description_:
--- 11037,11043 ----
  
  File: gfortran.info,  Node: GETENV,  Next: GET_ENVIRONMENT_VARIABLE,  Prev: GETCWD,  Up: Intrinsic Procedures
  
! 9.117 'GETENV' -- Get an environmental variable
  ===============================================
  
  _Description_:
*************** _Description_:
*** 11143,11151 ****
       of the *note GET_ENVIRONMENT_VARIABLE:: intrinsic defined by the
       Fortran 2003 standard.
  
!      Note that `GETENV' need not be thread-safe. It is the
       responsibility of the user to ensure that the environment is not
!      being updated concurrently with a call to the `GETENV' intrinsic.
  
  _Standard_:
       GNU extension
--- 11048,11056 ----
       of the *note GET_ENVIRONMENT_VARIABLE:: intrinsic defined by the
       Fortran 2003 standard.
  
!      Note that 'GETENV' need not be thread-safe.  It is the
       responsibility of the user to ensure that the environment is not
!      being updated concurrently with a call to the 'GETENV' intrinsic.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 11154,11170 ****
       Subroutine
  
  _Syntax_:
!      `CALL GETENV(NAME, VALUE)'
  
  _Arguments_:
!      NAME       Shall be of type `CHARACTER' and of default
!                 kind.
!      VALUE      Shall be of type `CHARACTER' and of default
!                 kind.
  
  _Return value_:
!      Stores the value of NAME in VALUE. If VALUE is not large enough to
!      hold the data, it is truncated. If NAME is not set, VALUE will be
       filled with blanks.
  
  _Example_:
--- 11059,11075 ----
       Subroutine
  
  _Syntax_:
!      'CALL GETENV(NAME, VALUE)'
  
  _Arguments_:
!      NAME        Shall be of type 'CHARACTER' and of default
!                  kind.
!      VALUE       Shall be of type 'CHARACTER' and of default
!                  kind.
  
  _Return value_:
!      Stores the value of NAME in VALUE.  If VALUE is not large enough to
!      hold the data, it is truncated.  If NAME is not set, VALUE will be
       filled with blanks.
  
  _Example_:
*************** _See also_:
*** 11180,11195 ****
  
  File: gfortran.info,  Node: GET_ENVIRONMENT_VARIABLE,  Next: GETGID,  Prev: GETENV,  Up: Intrinsic Procedures
  
! 9.118 `GET_ENVIRONMENT_VARIABLE' -- Get an environmental variable
  =================================================================
  
  _Description_:
       Get the VALUE of the environmental variable NAME.
  
!      Note that `GET_ENVIRONMENT_VARIABLE' need not be thread-safe. It
       is the responsibility of the user to ensure that the environment is
       not being updated concurrently with a call to the
!      `GET_ENVIRONMENT_VARIABLE' intrinsic.
  
  _Standard_:
       Fortran 2003 and later
--- 11085,11100 ----
  
  File: gfortran.info,  Node: GET_ENVIRONMENT_VARIABLE,  Next: GETGID,  Prev: GETENV,  Up: Intrinsic Procedures
  
! 9.118 'GET_ENVIRONMENT_VARIABLE' -- Get an environmental variable
  =================================================================
  
  _Description_:
       Get the VALUE of the environmental variable NAME.
  
!      Note that 'GET_ENVIRONMENT_VARIABLE' need not be thread-safe.  It
       is the responsibility of the user to ensure that the environment is
       not being updated concurrently with a call to the
!      'GET_ENVIRONMENT_VARIABLE' intrinsic.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 11198,11230 ****
       Subroutine
  
  _Syntax_:
!      `CALL GET_ENVIRONMENT_VARIABLE(NAME[, VALUE, LENGTH, STATUS,
       TRIM_NAME)'
  
  _Arguments_:
!      NAME       Shall be a scalar of type `CHARACTER' and of
!                 default kind.
!      VALUE      (Optional) Shall be a scalar of type
!                 `CHARACTER' and of default kind.
!      LENGTH     (Optional) Shall be a scalar of type `INTEGER'
!                 and of default kind.
!      STATUS     (Optional) Shall be a scalar of type `INTEGER'
!                 and of default kind.
!      TRIM_NAME  (Optional) Shall be a scalar of type `LOGICAL'
!                 and of default kind.
  
  _Return value_:
!      Stores the value of NAME in VALUE. If VALUE is not large enough to
!      hold the data, it is truncated. If NAME is not set, VALUE will be
!      filled with blanks. Argument LENGTH contains the length needed for
!      storing the environment variable NAME or zero if it is not
!      present. STATUS is -1 if VALUE is present but too short for the
!      environment variable; it is 1 if the environment variable does not
!      exist and 2 if the processor does not support environment
!      variables; in all other cases STATUS is zero. If TRIM_NAME is
!      present with the value `.FALSE.', the trailing blanks in NAME are
!      significant; otherwise they are not part of the environment
!      variable name.
  
  _Example_:
            PROGRAM test_getenv
--- 11103,11134 ----
       Subroutine
  
  _Syntax_:
!      'CALL GET_ENVIRONMENT_VARIABLE(NAME[, VALUE, LENGTH, STATUS,
       TRIM_NAME)'
  
  _Arguments_:
!      NAME        Shall be a scalar of type 'CHARACTER' and of
!                  default kind.
!      VALUE       (Optional) Shall be a scalar of type 'CHARACTER'
!                  and of default kind.
!      LENGTH      (Optional) Shall be a scalar of type 'INTEGER'
!                  and of default kind.
!      STATUS      (Optional) Shall be a scalar of type 'INTEGER'
!                  and of default kind.
!      TRIM_NAME   (Optional) Shall be a scalar of type 'LOGICAL'
!                  and of default kind.
  
  _Return value_:
!      Stores the value of NAME in VALUE.  If VALUE is not large enough to
!      hold the data, it is truncated.  If NAME is not set, VALUE will be
!      filled with blanks.  Argument LENGTH contains the length needed for
!      storing the environment variable NAME or zero if it is not present.
!      STATUS is -1 if VALUE is present but too short for the environment
!      variable; it is 1 if the environment variable does not exist and 2
!      if the processor does not support environment variables; in all
!      other cases STATUS is zero.  If TRIM_NAME is present with the value
!      '.FALSE.', the trailing blanks in NAME are significant; otherwise
!      they are not part of the environment variable name.
  
  _Example_:
            PROGRAM test_getenv
*************** _Example_:
*** 11236,11242 ****
  
  File: gfortran.info,  Node: GETGID,  Next: GETLOG,  Prev: GET_ENVIRONMENT_VARIABLE,  Up: Intrinsic Procedures
  
! 9.119 `GETGID' -- Group ID function
  ===================================
  
  _Description_:
--- 11140,11146 ----
  
  File: gfortran.info,  Node: GETGID,  Next: GETLOG,  Prev: GET_ENVIRONMENT_VARIABLE,  Up: Intrinsic Procedures
  
! 9.119 'GETGID' -- Group ID function
  ===================================
  
  _Description_:
*************** _Class_:
*** 11249,11261 ****
       Function
  
  _Syntax_:
!      `RESULT = GETGID()'
  
  _Return value_:
!      The return value of `GETGID' is an `INTEGER' of the default kind.
  
  _Example_:
!      See `GETPID' for an example.
  
  _See also_:
       *note GETPID::, *note GETUID::
--- 11153,11165 ----
       Function
  
  _Syntax_:
!      'RESULT = GETGID()'
  
  _Return value_:
!      The return value of 'GETGID' is an 'INTEGER' of the default kind.
  
  _Example_:
!      See 'GETPID' for an example.
  
  _See also_:
       *note GETPID::, *note GETUID::
*************** _See also_:
*** 11263,11269 ****
  
  File: gfortran.info,  Node: GETLOG,  Next: GETPID,  Prev: GETGID,  Up: Intrinsic Procedures
  
! 9.120 `GETLOG' -- Get login name
  ================================
  
  _Description_:
--- 11167,11173 ----
  
  File: gfortran.info,  Node: GETLOG,  Next: GETPID,  Prev: GETGID,  Up: Intrinsic Procedures
  
! 9.120 'GETLOG' -- Get login name
  ================================
  
  _Description_:
*************** _Class_:
*** 11276,11291 ****
       Subroutine
  
  _Syntax_:
!      `CALL GETLOG(C)'
  
  _Arguments_:
!      C          Shall be of type `CHARACTER' and of default
!                 kind.
  
  _Return value_:
       Stores the current user name in LOGIN.  (On systems where POSIX
!      functions `geteuid' and `getpwuid' are not available, and the
!      `getlogin' function is not implemented either, this will return a
       blank string.)
  
  _Example_:
--- 11180,11195 ----
       Subroutine
  
  _Syntax_:
!      'CALL GETLOG(C)'
  
  _Arguments_:
!      C           Shall be of type 'CHARACTER' and of default
!                  kind.
  
  _Return value_:
       Stores the current user name in LOGIN.  (On systems where POSIX
!      functions 'geteuid' and 'getpwuid' are not available, and the
!      'getlogin' function is not implemented either, this will return a
       blank string.)
  
  _Example_:
*************** _See also_:
*** 11301,11307 ****
  
  File: gfortran.info,  Node: GETPID,  Next: GETUID,  Prev: GETLOG,  Up: Intrinsic Procedures
  
! 9.121 `GETPID' -- Process ID function
  =====================================
  
  _Description_:
--- 11205,11211 ----
  
  File: gfortran.info,  Node: GETPID,  Next: GETUID,  Prev: GETLOG,  Up: Intrinsic Procedures
  
! 9.121 'GETPID' -- Process ID function
  =====================================
  
  _Description_:
*************** _Class_:
*** 11314,11323 ****
       Function
  
  _Syntax_:
!      `RESULT = GETPID()'
  
  _Return value_:
!      The return value of `GETPID' is an `INTEGER' of the default kind.
  
  _Example_:
            program info
--- 11218,11227 ----
       Function
  
  _Syntax_:
!      'RESULT = GETPID()'
  
  _Return value_:
!      The return value of 'GETPID' is an 'INTEGER' of the default kind.
  
  _Example_:
            program info
*************** _See also_:
*** 11332,11338 ****
  
  File: gfortran.info,  Node: GETUID,  Next: GMTIME,  Prev: GETPID,  Up: Intrinsic Procedures
  
! 9.122 `GETUID' -- User ID function
  ==================================
  
  _Description_:
--- 11236,11242 ----
  
  File: gfortran.info,  Node: GETUID,  Next: GMTIME,  Prev: GETPID,  Up: Intrinsic Procedures
  
! 9.122 'GETUID' -- User ID function
  ==================================
  
  _Description_:
*************** _Class_:
*** 11345,11357 ****
       Function
  
  _Syntax_:
!      `RESULT = GETUID()'
  
  _Return value_:
!      The return value of `GETUID' is an `INTEGER' of the default kind.
  
  _Example_:
!      See `GETPID' for an example.
  
  _See also_:
       *note GETPID::, *note GETLOG::
--- 11249,11261 ----
       Function
  
  _Syntax_:
!      'RESULT = GETUID()'
  
  _Return value_:
!      The return value of 'GETUID' is an 'INTEGER' of the default kind.
  
  _Example_:
!      See 'GETPID' for an example.
  
  _See also_:
       *note GETPID::, *note GETLOG::
*************** _See also_:
*** 11359,11372 ****
  
  File: gfortran.info,  Node: GMTIME,  Next: HOSTNM,  Prev: GETUID,  Up: Intrinsic Procedures
  
! 9.123 `GMTIME' -- Convert time to GMT info
  ==========================================
  
  _Description_:
!      Given a system time value TIME (as provided by the `TIME8'
       intrinsic), fills VALUES with values extracted from it appropriate
       to the UTC time zone (Universal Coordinated Time, also known in
!      some countries as GMT, Greenwich Mean Time), using `gmtime(3)'.
  
  _Standard_:
       GNU extension
--- 11263,11276 ----
  
  File: gfortran.info,  Node: GMTIME,  Next: HOSTNM,  Prev: GETUID,  Up: Intrinsic Procedures
  
! 9.123 'GMTIME' -- Convert time to GMT info
  ==========================================
  
  _Description_:
!      Given a system time value TIME (as provided by the 'TIME8'
       intrinsic), fills VALUES with values extracted from it appropriate
       to the UTC time zone (Universal Coordinated Time, also known in
!      some countries as GMT, Greenwich Mean Time), using 'gmtime(3)'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 11375,11407 ****
       Subroutine
  
  _Syntax_:
!      `CALL GMTIME(TIME, VALUES)'
  
  _Arguments_:
!      TIME       An `INTEGER' scalar expression corresponding
!                 to a system time, with `INTENT(IN)'.
!      VALUES     A default `INTEGER' array with 9 elements,
!                 with `INTENT(OUT)'.
  
  _Return value_:
       The elements of VALUES are assigned as follows:
         1. Seconds after the minute, range 0-59 or 0-61 to allow for leap
            seconds
- 
         2. Minutes after the hour, range 0-59
- 
         3. Hours past midnight, range 0-23
- 
         4. Day of month, range 0-31
- 
         5. Number of months since January, range 0-12
- 
         6. Years since 1900
- 
         7. Number of days since Sunday, range 0-6
- 
         8. Days since January 1
- 
         9. Daylight savings indicator: positive if daylight savings is in
            effect, zero if not, and negative if the information is not
            available.
--- 11279,11303 ----
       Subroutine
  
  _Syntax_:
!      'CALL GMTIME(TIME, VALUES)'
  
  _Arguments_:
!      TIME        An 'INTEGER' scalar expression corresponding to
!                  a system time, with 'INTENT(IN)'.
!      VALUES      A default 'INTEGER' array with 9 elements, with
!                  'INTENT(OUT)'.
  
  _Return value_:
       The elements of VALUES are assigned as follows:
         1. Seconds after the minute, range 0-59 or 0-61 to allow for leap
            seconds
         2. Minutes after the hour, range 0-59
         3. Hours past midnight, range 0-23
         4. Day of month, range 0-31
         5. Number of months since January, range 0-12
         6. Years since 1900
         7. Number of days since Sunday, range 0-6
         8. Days since January 1
         9. Daylight savings indicator: positive if daylight savings is in
            effect, zero if not, and negative if the information is not
            available.
*************** _Return value_:
*** 11409,11419 ****
  _See also_:
       *note CTIME::, *note LTIME::, *note TIME::, *note TIME8::
  
- 
  
  File: gfortran.info,  Node: HOSTNM,  Next: HUGE,  Prev: GMTIME,  Up: Intrinsic Procedures
  
! 9.124 `HOSTNM' -- Get system host name
  ======================================
  
  _Description_:
--- 11305,11314 ----
  _See also_:
       *note CTIME::, *note LTIME::, *note TIME::, *note TIME8::
  
  
  File: gfortran.info,  Node: HOSTNM,  Next: HUGE,  Prev: GMTIME,  Up: Intrinsic Procedures
  
! 9.124 'HOSTNM' -- Get system host name
  ======================================
  
  _Description_:
*************** _Class_:
*** 11430,11458 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL HOSTNM(C [, STATUS])'
!      `STATUS = HOSTNM(NAME)'
  
  _Arguments_:
!      C          Shall of type `CHARACTER' and of default kind.
!      STATUS     (Optional) status flag of type `INTEGER'.
!                 Returns 0 on success, or a system specific
!                 error code otherwise.
  
  _Return value_:
       In either syntax, NAME is set to the current hostname if it can be
       obtained, or to a blank string otherwise.
  
- 
  
  File: gfortran.info,  Node: HUGE,  Next: HYPOT,  Prev: HOSTNM,  Up: Intrinsic Procedures
  
! 9.125 `HUGE' -- Largest number of a kind
  ========================================
  
  _Description_:
!      `HUGE(X)' returns the largest number that is not an infinity in
!      the model of the type of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 11325,11352 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL HOSTNM(C [, STATUS])'
!      'STATUS = HOSTNM(NAME)'
  
  _Arguments_:
!      C           Shall of type 'CHARACTER' and of default kind.
!      STATUS      (Optional) status flag of type 'INTEGER'.
!                  Returns 0 on success, or a system specific error
!                  code otherwise.
  
  _Return value_:
       In either syntax, NAME is set to the current hostname if it can be
       obtained, or to a blank string otherwise.
  
  
  File: gfortran.info,  Node: HUGE,  Next: HYPOT,  Prev: HOSTNM,  Up: Intrinsic Procedures
  
! 9.125 'HUGE' -- Largest number of a kind
  ========================================
  
  _Description_:
!      'HUGE(X)' returns the largest number that is not an infinity in the
!      model of the type of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 11461,11470 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = HUGE(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL' or `INTEGER'.
  
  _Return value_:
       The return value is of the same type and kind as X
--- 11355,11364 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = HUGE(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL' or 'INTEGER'.
  
  _Return value_:
       The return value is of the same type and kind as X
*************** _Example_:
*** 11478,11489 ****
  
  File: gfortran.info,  Node: HYPOT,  Next: IACHAR,  Prev: HUGE,  Up: Intrinsic Procedures
  
! 9.126 `HYPOT' -- Euclidean distance function
  ============================================
  
  _Description_:
!      `HYPOT(X,Y)' is the Euclidean distance function. It is equal to
!      \sqrtX^2 + Y^2, without undue underflow or overflow.
  
  _Standard_:
       Fortran 2008 and later
--- 11372,11383 ----
  
  File: gfortran.info,  Node: HYPOT,  Next: IACHAR,  Prev: HUGE,  Up: Intrinsic Procedures
  
! 9.126 'HYPOT' -- Euclidean distance function
  ============================================
  
  _Description_:
!      'HYPOT(X,Y)' is the Euclidean distance function.  It is equal to
!      \sqrt{X^2 + Y^2}, without undue underflow or overflow.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 11492,11503 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = HYPOT(X, Y)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
!      Y          The type and kind type parameter shall be the
!                 same as X.
  
  _Return value_:
       The return value has the same type and kind type parameter as X.
--- 11386,11397 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = HYPOT(X, Y)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
!      Y           The type and kind type parameter shall be the
!                  same as X.
  
  _Return value_:
       The return value has the same type and kind type parameter as X.
*************** _Example_:
*** 11511,11522 ****
  
  File: gfortran.info,  Node: IACHAR,  Next: IALL,  Prev: HYPOT,  Up: Intrinsic Procedures
  
! 9.127 `IACHAR' -- Code in ASCII collating sequence
  ==================================================
  
  _Description_:
!      `IACHAR(C)' returns the code for the ASCII character in the first
!      character position of `C'.
  
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
--- 11405,11416 ----
  
  File: gfortran.info,  Node: IACHAR,  Next: IALL,  Prev: HYPOT,  Up: Intrinsic Procedures
  
! 9.127 'IACHAR' -- Code in ASCII collating sequence
  ==================================================
  
  _Description_:
!      'IACHAR(C)' returns the code for the ASCII character in the first
!      character position of 'C'.
  
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
*************** _Class_:
*** 11525,11541 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IACHAR(C [, KIND])'
  
  _Arguments_:
!      C          Shall be a scalar `CHARACTER', with
!                 `INTENT(IN)'
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
--- 11419,11434 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IACHAR(C [, KIND])'
  
  _Arguments_:
!      C           Shall be a scalar 'CHARACTER', with 'INTENT(IN)'
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
*************** _Note_:
*** 11551,11566 ****
  _See also_:
       *note ACHAR::, *note CHAR::, *note ICHAR::
  
- 
  
  File: gfortran.info,  Node: IALL,  Next: IAND,  Prev: IACHAR,  Up: Intrinsic Procedures
  
! 9.128 `IALL' -- Bitwise AND of array elements
  =============================================
  
  _Description_:
       Reduces with bitwise AND the elements of ARRAY along dimension DIM
!      if the corresponding element in MASK is `TRUE'.
  
  _Standard_:
       Fortran 2008 and later
--- 11444,11458 ----
  _See also_:
       *note ACHAR::, *note CHAR::, *note ICHAR::
  
  
  File: gfortran.info,  Node: IALL,  Next: IAND,  Prev: IACHAR,  Up: Intrinsic Procedures
  
! 9.128 'IALL' -- Bitwise AND of array elements
  =============================================
  
  _Description_:
       Reduces with bitwise AND the elements of ARRAY along dimension DIM
!      if the corresponding element in MASK is 'TRUE'.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 11569,11591 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = IALL(ARRAY[, MASK])'
!      `RESULT = IALL(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER'
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of ARRAY.
!      MASK       (Optional) shall be of type `LOGICAL' and
!                 either be a scalar or an array of the same
!                 shape as ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the bitwise ALL of all elements in
!      ARRAY is returned. Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
--- 11461,11483 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = IALL(ARRAY[, MASK])'
!      'RESULT = IALL(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER'
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of ARRAY.
!      MASK        (Optional) shall be of type 'LOGICAL' and either
!                  be a scalar or an array of the same shape as
!                  ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the bitwise ALL of all elements in
!      ARRAY is returned.  Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
*************** _See also_:
*** 11606,11616 ****
  
  File: gfortran.info,  Node: IAND,  Next: IANY,  Prev: IALL,  Up: Intrinsic Procedures
  
! 9.129 `IAND' -- Bitwise logical and
  ===================================
  
  _Description_:
!      Bitwise logical `AND'.
  
  _Standard_:
       Fortran 95 and later
--- 11498,11508 ----
  
  File: gfortran.info,  Node: IAND,  Next: IANY,  Prev: IALL,  Up: Intrinsic Procedures
  
! 9.129 'IAND' -- Bitwise logical and
  ===================================
  
  _Description_:
!      Bitwise logical 'AND'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 11619,11636 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IAND(I, J)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      J          The type shall be `INTEGER', of the same kind
!                 as I.  (As a GNU extension, different kinds
!                 are also permitted.)
  
  _Return value_:
!      The return type is `INTEGER', of the same kind as the arguments.
!      (If the argument kinds differ, it is of the same kind as the
!      larger argument.)
  
  _Example_:
            PROGRAM test_iand
--- 11511,11528 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IAND(I, J)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      J           The type shall be 'INTEGER', of the same kind as
!                  I.  (As a GNU extension, different kinds are
!                  also permitted.)
  
  _Return value_:
!      The return type is 'INTEGER', of the same kind as the arguments.
!      (If the argument kinds differ, it is of the same kind as the larger
!      argument.)
  
  _Example_:
            PROGRAM test_iand
*************** _See also_:
*** 11643,11658 ****
       *note IOR::, *note IEOR::, *note IBITS::, *note IBSET::, *note
       IBCLR::, *note NOT::
  
- 
  
  File: gfortran.info,  Node: IANY,  Next: IARGC,  Prev: IAND,  Up: Intrinsic Procedures
  
! 9.130 `IANY' -- Bitwise OR of array elements
  ============================================
  
  _Description_:
       Reduces with bitwise OR (inclusive or) the elements of ARRAY along
!      dimension DIM if the corresponding element in MASK is `TRUE'.
  
  _Standard_:
       Fortran 2008 and later
--- 11535,11549 ----
       *note IOR::, *note IEOR::, *note IBITS::, *note IBSET::, *note
       IBCLR::, *note NOT::
  
  
  File: gfortran.info,  Node: IANY,  Next: IARGC,  Prev: IAND,  Up: Intrinsic Procedures
  
! 9.130 'IANY' -- Bitwise OR of array elements
  ============================================
  
  _Description_:
       Reduces with bitwise OR (inclusive or) the elements of ARRAY along
!      dimension DIM if the corresponding element in MASK is 'TRUE'.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 11661,11683 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = IANY(ARRAY[, MASK])'
!      `RESULT = IANY(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER'
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of ARRAY.
!      MASK       (Optional) shall be of type `LOGICAL' and
!                 either be a scalar or an array of the same
!                 shape as ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the bitwise OR of all elements in
!      ARRAY is returned. Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
--- 11552,11574 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = IANY(ARRAY[, MASK])'
!      'RESULT = IANY(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER'
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of ARRAY.
!      MASK        (Optional) shall be of type 'LOGICAL' and either
!                  be a scalar or an array of the same shape as
!                  ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the bitwise OR of all elements in
!      ARRAY is returned.  Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
*************** _See also_:
*** 11698,11708 ****
  
  File: gfortran.info,  Node: IARGC,  Next: IBCLR,  Prev: IANY,  Up: Intrinsic Procedures
  
! 9.131 `IARGC' -- Get the number of command line arguments
  =========================================================
  
  _Description_:
!      `IARGC' returns the number of arguments passed on the command line
       when the containing program was invoked.
  
       This intrinsic routine is provided for backwards compatibility with
--- 11589,11599 ----
  
  File: gfortran.info,  Node: IARGC,  Next: IBCLR,  Prev: IANY,  Up: Intrinsic Procedures
  
! 9.131 'IARGC' -- Get the number of command line arguments
  =========================================================
  
  _Description_:
!      'IARGC' returns the number of arguments passed on the command line
       when the containing program was invoked.
  
       This intrinsic routine is provided for backwards compatibility with
*************** _Class_:
*** 11717,11729 ****
       Function
  
  _Syntax_:
!      `RESULT = IARGC()'
  
  _Arguments_:
       None.
  
  _Return value_:
!      The number of command line arguments, type `INTEGER(4)'.
  
  _Example_:
       See *note GETARG::
--- 11608,11620 ----
       Function
  
  _Syntax_:
!      'RESULT = IARGC()'
  
  _Arguments_:
       None.
  
  _Return value_:
!      The number of command line arguments, type 'INTEGER(4)'.
  
  _Example_:
       See *note GETARG::
*************** _See also_:
*** 11737,11747 ****
  
  File: gfortran.info,  Node: IBCLR,  Next: IBITS,  Prev: IARGC,  Up: Intrinsic Procedures
  
! 9.132 `IBCLR' -- Clear bit
  ==========================
  
  _Description_:
!      `IBCLR' returns the value of I with the bit at position POS set to
       zero.
  
  _Standard_:
--- 11628,11638 ----
  
  File: gfortran.info,  Node: IBCLR,  Next: IBITS,  Prev: IARGC,  Up: Intrinsic Procedures
  
! 9.132 'IBCLR' -- Clear bit
  ==========================
  
  _Description_:
!      'IBCLR' returns the value of I with the bit at position POS set to
       zero.
  
  _Standard_:
*************** _Class_:
*** 11751,11781 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IBCLR(I, POS)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      POS        The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note IBITS::, *note IBSET::, *note IAND::, *note IOR::, *note
       IEOR::, *note MVBITS::
  
- 
  
  File: gfortran.info,  Node: IBITS,  Next: IBSET,  Prev: IBCLR,  Up: Intrinsic Procedures
  
! 9.133 `IBITS' -- Bit extraction
  ===============================
  
  _Description_:
!      `IBITS' extracts a field of length LEN from I, starting from bit
       position POS and extending left for LEN bits.  The result is
       right-justified and the remaining bits are zeroed.  The value of
!      `POS+LEN' must be less than or equal to the value `BIT_SIZE(I)'.
  
  _Standard_:
       Fortran 95 and later
--- 11642,11671 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IBCLR(I, POS)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      POS         The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note IBITS::, *note IBSET::, *note IAND::, *note IOR::, *note
       IEOR::, *note MVBITS::
  
  
  File: gfortran.info,  Node: IBITS,  Next: IBSET,  Prev: IBCLR,  Up: Intrinsic Procedures
  
! 9.133 'IBITS' -- Bit extraction
  ===============================
  
  _Description_:
!      'IBITS' extracts a field of length LEN from I, starting from bit
       position POS and extending left for LEN bits.  The result is
       right-justified and the remaining bits are zeroed.  The value of
!      'POS+LEN' must be less than or equal to the value 'BIT_SIZE(I)'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 11784,11811 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IBITS(I, POS, LEN)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      POS        The type shall be `INTEGER'.
!      LEN        The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
!      *note BIT_SIZE::, *note IBCLR::, *note IBSET::, *note IAND::,
!      *note IOR::, *note IEOR::
  
  
  File: gfortran.info,  Node: IBSET,  Next: ICHAR,  Prev: IBITS,  Up: Intrinsic Procedures
  
! 9.134 `IBSET' -- Set bit
  ========================
  
  _Description_:
!      `IBSET' returns the value of I with the bit at position POS set to
       one.
  
  _Standard_:
--- 11674,11701 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IBITS(I, POS, LEN)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      POS         The type shall be 'INTEGER'.
!      LEN         The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
!      *note BIT_SIZE::, *note IBCLR::, *note IBSET::, *note IAND::, *note
!      IOR::, *note IEOR::
  
  
  File: gfortran.info,  Node: IBSET,  Next: ICHAR,  Prev: IBITS,  Up: Intrinsic Procedures
  
! 9.134 'IBSET' -- Set bit
  ========================
  
  _Description_:
!      'IBSET' returns the value of I with the bit at position POS set to
       one.
  
  _Standard_:
*************** _Class_:
*** 11815,11843 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IBSET(I, POS)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      POS        The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note IBCLR::, *note IBITS::, *note IAND::, *note IOR::, *note
       IEOR::, *note MVBITS::
  
- 
  
  File: gfortran.info,  Node: ICHAR,  Next: IDATE,  Prev: IBSET,  Up: Intrinsic Procedures
  
! 9.135 `ICHAR' -- Character-to-integer conversion function
  =========================================================
  
  _Description_:
!      `ICHAR(C)' returns the code for the character in the first
!      character position of `C' in the system's native character set.
       The correspondence between characters and their codes is not
       necessarily the same across different GNU Fortran implementations.
  
--- 11705,11732 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IBSET(I, POS)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      POS         The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note IBCLR::, *note IBITS::, *note IAND::, *note IOR::, *note
       IEOR::, *note MVBITS::
  
  
  File: gfortran.info,  Node: ICHAR,  Next: IDATE,  Prev: IBSET,  Up: Intrinsic Procedures
  
! 9.135 'ICHAR' -- Character-to-integer conversion function
  =========================================================
  
  _Description_:
!      'ICHAR(C)' returns the code for the character in the first
!      character position of 'C' in the system's native character set.
       The correspondence between characters and their codes is not
       necessarily the same across different GNU Fortran implementations.
  
*************** _Class_:
*** 11848,11864 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ICHAR(C [, KIND])'
  
  _Arguments_:
!      C          Shall be a scalar `CHARACTER', with
!                 `INTENT(IN)'
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
--- 11737,11752 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ICHAR(C [, KIND])'
  
  _Arguments_:
!      C           Shall be a scalar 'CHARACTER', with 'INTENT(IN)'
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
*************** _Example_:
*** 11868,11882 ****
            end program test_ichar
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ICHAR(C)'    `CHARACTER    `INTEGER(4)'  Fortran 77 and
!                    C'                          later
  
  _Note_:
       No intrinsic exists to convert between a numeric value and a
       formatted character string representation - for instance, given the
!      `CHARACTER' value `'154'', obtaining an `INTEGER' or `REAL' value
!      with the value 154, or vice versa. Instead, this functionality is
       provided by internal-file I/O, as in the following example:
            program read_val
              integer value
--- 11756,11770 ----
            end program test_ichar
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ICHAR(C)'     'CHARACTER     'INTEGER(4)'   Fortran 77 and
!                     C'                            later
  
  _Note_:
       No intrinsic exists to convert between a numeric value and a
       formatted character string representation - for instance, given the
!      'CHARACTER' value ''154'', obtaining an 'INTEGER' or 'REAL' value
!      with the value 154, or vice versa.  Instead, this functionality is
       provided by internal-file I/O, as in the following example:
            program read_val
              integer value
*************** _Note_:
*** 11895,11910 ****
  _See also_:
       *note ACHAR::, *note CHAR::, *note IACHAR::
  
- 
  
  File: gfortran.info,  Node: IDATE,  Next: IEOR,  Prev: ICHAR,  Up: Intrinsic Procedures
  
! 9.136 `IDATE' -- Get current local time subroutine (day/month/year)
  ===================================================================
  
  _Description_:
!      `IDATE(VALUES)' Fills VALUES with the numerical values at the
!      current local time. The day (in the range 1-31), month (in the
       range 1-12), and year appear in elements 1, 2, and 3 of VALUES,
       respectively.  The year has four significant digits.
  
--- 11783,11797 ----
  _See also_:
       *note ACHAR::, *note CHAR::, *note IACHAR::
  
  
  File: gfortran.info,  Node: IDATE,  Next: IEOR,  Prev: ICHAR,  Up: Intrinsic Procedures
  
! 9.136 'IDATE' -- Get current local time subroutine (day/month/year)
  ===================================================================
  
  _Description_:
!      'IDATE(VALUES)' Fills VALUES with the numerical values at the
!      current local time.  The day (in the range 1-31), month (in the
       range 1-12), and year appear in elements 1, 2, and 3 of VALUES,
       respectively.  The year has four significant digits.
  
*************** _Class_:
*** 11915,11925 ****
       Subroutine
  
  _Syntax_:
!      `CALL IDATE(VALUES)'
  
  _Arguments_:
!      VALUES     The type shall be `INTEGER, DIMENSION(3)' and
!                 the kind shall be the default integer kind.
  
  _Return value_:
       Does not return anything.
--- 11802,11812 ----
       Subroutine
  
  _Syntax_:
!      'CALL IDATE(VALUES)'
  
  _Arguments_:
!      VALUES      The type shall be 'INTEGER, DIMENSION(3)' and
!                  the kind shall be the default integer kind.
  
  _Return value_:
       Does not return anything.
*************** _Example_:
*** 11936,11946 ****
  
  File: gfortran.info,  Node: IEOR,  Next: IERRNO,  Prev: IDATE,  Up: Intrinsic Procedures
  
! 9.137 `IEOR' -- Bitwise logical exclusive or
  ============================================
  
  _Description_:
!      `IEOR' returns the bitwise Boolean exclusive-OR of I and J.
  
  _Standard_:
       Fortran 95 and later
--- 11823,11833 ----
  
  File: gfortran.info,  Node: IEOR,  Next: IERRNO,  Prev: IDATE,  Up: Intrinsic Procedures
  
! 9.137 'IEOR' -- Bitwise logical exclusive or
  ============================================
  
  _Description_:
!      'IEOR' returns the bitwise Boolean exclusive-OR of I and J.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 11949,11966 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IEOR(I, J)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      J          The type shall be `INTEGER', of the same kind
!                 as I.  (As a GNU extension, different kinds
!                 are also permitted.)
  
  _Return value_:
!      The return type is `INTEGER', of the same kind as the arguments.
!      (If the argument kinds differ, it is of the same kind as the
!      larger argument.)
  
  _See also_:
       *note IOR::, *note IAND::, *note IBITS::, *note IBSET::, *note
--- 11836,11853 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IEOR(I, J)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      J           The type shall be 'INTEGER', of the same kind as
!                  I.  (As a GNU extension, different kinds are
!                  also permitted.)
  
  _Return value_:
!      The return type is 'INTEGER', of the same kind as the arguments.
!      (If the argument kinds differ, it is of the same kind as the larger
!      argument.)
  
  _See also_:
       *note IOR::, *note IAND::, *note IBITS::, *note IBSET::, *note
*************** _See also_:
*** 11969,11979 ****
  
  File: gfortran.info,  Node: IERRNO,  Next: IMAGE_INDEX,  Prev: IEOR,  Up: Intrinsic Procedures
  
! 9.138 `IERRNO' -- Get the last system error number
  ==================================================
  
  _Description_:
!      Returns the last system error number, as given by the C `errno'
       variable.
  
  _Standard_:
--- 11856,11866 ----
  
  File: gfortran.info,  Node: IERRNO,  Next: IMAGE_INDEX,  Prev: IEOR,  Up: Intrinsic Procedures
  
! 9.138 'IERRNO' -- Get the last system error number
  ==================================================
  
  _Description_:
!      Returns the last system error number, as given by the C 'errno'
       variable.
  
  _Standard_:
*************** _Class_:
*** 11983,11995 ****
       Function
  
  _Syntax_:
!      `RESULT = IERRNO()'
  
  _Arguments_:
       None.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _See also_:
--- 11870,11882 ----
       Function
  
  _Syntax_:
!      'RESULT = IERRNO()'
  
  _Arguments_:
       None.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _See also_:
*************** _See also_:
*** 11998,12004 ****
  
  File: gfortran.info,  Node: IMAGE_INDEX,  Next: INDEX intrinsic,  Prev: IERRNO,  Up: Intrinsic Procedures
  
! 9.139 `IMAGE_INDEX' -- Function that converts a cosubscript to an image index
  =============================================================================
  
  _Description_:
--- 11885,11891 ----
  
  File: gfortran.info,  Node: IMAGE_INDEX,  Next: INDEX intrinsic,  Prev: IERRNO,  Up: Intrinsic Procedures
  
! 9.139 'IMAGE_INDEX' -- Function that converts a cosubscript to an image index
  =============================================================================
  
  _Description_:
*************** _Class_:
*** 12011,12026 ****
       Inquiry function.
  
  _Syntax_:
!      `RESULT = IMAGE_INDEX(COARRAY, SUB)'
  
  _Arguments_: None.
!      COARRAY    Coarray of any type.
!      SUB        default integer rank-1 array of a size equal to
!                 the corank of COARRAY.
  
  _Return value_:
       Scalar default integer with the value of the image index which
!      corresponds to the cosubscripts. For invalid cosubscripts the
       result is zero.
  
  _Example_:
--- 11898,11913 ----
       Inquiry function.
  
  _Syntax_:
!      'RESULT = IMAGE_INDEX(COARRAY, SUB)'
  
  _Arguments_: None.
!      COARRAY     Coarray of any type.
!      SUB         default integer rank-1 array of a size equal to
!                  the corank of COARRAY.
  
  _Return value_:
       Scalar default integer with the value of the image index which
!      corresponds to the cosubscripts.  For invalid cosubscripts the
       result is zero.
  
  _Example_:
*************** _See also_:
*** 12034,12040 ****
  
  File: gfortran.info,  Node: INDEX intrinsic,  Next: INT,  Prev: IMAGE_INDEX,  Up: Intrinsic Procedures
  
! 9.140 `INDEX' -- Position of a substring within a string
  ========================================================
  
  _Description_:
--- 11921,11927 ----
  
  File: gfortran.info,  Node: INDEX intrinsic,  Next: INT,  Prev: IMAGE_INDEX,  Up: Intrinsic Procedures
  
! 9.140 'INDEX' -- Position of a substring within a string
  ========================================================
  
  _Description_:
*************** _Class_:
*** 12051,12077 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = INDEX(STRING, SUBSTRING [, BACK [, KIND]])'
  
  _Arguments_:
!      STRING     Shall be a scalar `CHARACTER', with
!                 `INTENT(IN)'
!      SUBSTRING  Shall be a scalar `CHARACTER', with
!                 `INTENT(IN)'
!      BACK       (Optional) Shall be a scalar `LOGICAL', with
!                 `INTENT(IN)'
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `INDEX(STRING,`CHARACTER'   `INTEGER(4)'  Fortran 77 and
!      SUBSTRING)'                               later
  
  _See also_:
       *note SCAN::, *note VERIFY::
--- 11938,11962 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = INDEX(STRING, SUBSTRING [, BACK [, KIND]])'
  
  _Arguments_:
!      STRING      Shall be a scalar 'CHARACTER', with 'INTENT(IN)'
!      SUBSTRING   Shall be a scalar 'CHARACTER', with 'INTENT(IN)'
!      BACK        (Optional) Shall be a scalar 'LOGICAL', with
!                  'INTENT(IN)'
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'INDEX(STRING, 'CHARACTER'    'INTEGER(4)'   Fortran 77 and
!      SUBSTRING)'                                  later
  
  _See also_:
       *note SCAN::, *note VERIFY::
*************** _See also_:
*** 12079,12085 ****
  
  File: gfortran.info,  Node: INT,  Next: INT2,  Prev: INDEX intrinsic,  Up: Intrinsic Procedures
  
! 9.141 `INT' -- Convert to integer type
  ======================================
  
  _Description_:
--- 11964,11970 ----
  
  File: gfortran.info,  Node: INT,  Next: INT2,  Prev: INDEX intrinsic,  Up: Intrinsic Procedures
  
! 9.141 'INT' -- Convert to integer type
  ======================================
  
  _Description_:
*************** _Class_:
*** 12092,12121 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = INT(A [, KIND))'
  
  _Arguments_:
!      A          Shall be of type `INTEGER', `REAL', or
!                 `COMPLEX'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      These functions return a `INTEGER' variable or array under the
       following rules:
  
!     (A)
!           If A is of type `INTEGER', `INT(A) = A'
! 
!     (B)
!           If A is of type `REAL' and |A| < 1, `INT(A)' equals `0'. If
!           |A| \geq 1, then `INT(A)' is the integer whose magnitude is
            the largest integer that does not exceed the magnitude of A
            and whose sign is the same as the sign of A.
! 
!     (C)
!           If A is of type `COMPLEX', rule B is applied to the real part
            of A.
  
  _Example_:
--- 11977,12004 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = INT(A [, KIND))'
  
  _Arguments_:
!      A           Shall be of type 'INTEGER', 'REAL', or
!                  'COMPLEX'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      These functions return a 'INTEGER' variable or array under the
       following rules:
  
!      (A)
!           If A is of type 'INTEGER', 'INT(A) = A'
!      (B)
!           If A is of type 'REAL' and |A| < 1, 'INT(A)' equals '0'.  If
!           |A| \geq 1, then 'INT(A)' is the integer whose magnitude is
            the largest integer that does not exceed the magnitude of A
            and whose sign is the same as the sign of A.
!      (C)
!           If A is of type 'COMPLEX', rule B is applied to the real part
            of A.
  
  _Example_:
*************** _Example_:
*** 12127,12153 ****
            end program
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `INT(A)'      `REAL(4) A'   `INTEGER'     Fortran 77 and
!                                                later
!      `IFIX(A)'     `REAL(4) A'   `INTEGER'     Fortran 77 and
!                                                later
!      `IDINT(A)'    `REAL(8) A'   `INTEGER'     Fortran 77 and
!                                                later
! 
  
  
  File: gfortran.info,  Node: INT2,  Next: INT8,  Prev: INT,  Up: Intrinsic Procedures
  
! 9.142 `INT2' -- Convert to 16-bit integer type
  ==============================================
  
  _Description_:
!      Convert to a `KIND=2' integer type. This is equivalent to the
!      standard `INT' intrinsic with an optional argument of `KIND=2',
!      and is only included for backwards compatibility.
  
!      The `SHORT' intrinsic is equivalent to `INT2'.
  
  _Standard_:
       GNU extension
--- 12010,12035 ----
            end program
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'INT(A)'       'REAL(4) A'    'INTEGER'      Fortran 77 and
!                                                   later
!      'IFIX(A)'      'REAL(4) A'    'INTEGER'      Fortran 77 and
!                                                   later
!      'IDINT(A)'     'REAL(8) A'    'INTEGER'      Fortran 77 and
!                                                   later
  
  
  File: gfortran.info,  Node: INT2,  Next: INT8,  Prev: INT,  Up: Intrinsic Procedures
  
! 9.142 'INT2' -- Convert to 16-bit integer type
  ==============================================
  
  _Description_:
!      Convert to a 'KIND=2' integer type.  This is equivalent to the
!      standard 'INT' intrinsic with an optional argument of 'KIND=2', and
!      is only included for backwards compatibility.
  
!      The 'SHORT' intrinsic is equivalent to 'INT2'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 12156,12169 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = INT2(A)'
  
  _Arguments_:
!      A          Shall be of type `INTEGER', `REAL', or
!                 `COMPLEX'.
  
  _Return value_:
!      The return value is a `INTEGER(2)' variable.
  
  _See also_:
       *note INT::, *note INT8::, *note LONG::
--- 12038,12051 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = INT2(A)'
  
  _Arguments_:
!      A           Shall be of type 'INTEGER', 'REAL', or
!                  'COMPLEX'.
  
  _Return value_:
!      The return value is a 'INTEGER(2)' variable.
  
  _See also_:
       *note INT::, *note INT8::, *note LONG::
*************** _See also_:
*** 12171,12183 ****
  
  File: gfortran.info,  Node: INT8,  Next: IOR,  Prev: INT2,  Up: Intrinsic Procedures
  
! 9.143 `INT8' -- Convert to 64-bit integer type
  ==============================================
  
  _Description_:
!      Convert to a `KIND=8' integer type. This is equivalent to the
!      standard `INT' intrinsic with an optional argument of `KIND=8',
!      and is only included for backwards compatibility.
  
  _Standard_:
       GNU extension
--- 12053,12065 ----
  
  File: gfortran.info,  Node: INT8,  Next: IOR,  Prev: INT2,  Up: Intrinsic Procedures
  
! 9.143 'INT8' -- Convert to 64-bit integer type
  ==============================================
  
  _Description_:
!      Convert to a 'KIND=8' integer type.  This is equivalent to the
!      standard 'INT' intrinsic with an optional argument of 'KIND=8', and
!      is only included for backwards compatibility.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 12186,12199 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = INT8(A)'
  
  _Arguments_:
!      A          Shall be of type `INTEGER', `REAL', or
!                 `COMPLEX'.
  
  _Return value_:
!      The return value is a `INTEGER(8)' variable.
  
  _See also_:
       *note INT::, *note INT2::, *note LONG::
--- 12068,12081 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = INT8(A)'
  
  _Arguments_:
!      A           Shall be of type 'INTEGER', 'REAL', or
!                  'COMPLEX'.
  
  _Return value_:
!      The return value is a 'INTEGER(8)' variable.
  
  _See also_:
       *note INT::, *note INT2::, *note LONG::
*************** _See also_:
*** 12201,12211 ****
  
  File: gfortran.info,  Node: IOR,  Next: IPARITY,  Prev: INT8,  Up: Intrinsic Procedures
  
! 9.144 `IOR' -- Bitwise logical or
  =================================
  
  _Description_:
!      `IOR' returns the bitwise Boolean inclusive-OR of I and J.
  
  _Standard_:
       Fortran 95 and later
--- 12083,12093 ----
  
  File: gfortran.info,  Node: IOR,  Next: IPARITY,  Prev: INT8,  Up: Intrinsic Procedures
  
! 9.144 'IOR' -- Bitwise logical or
  =================================
  
  _Description_:
!      'IOR' returns the bitwise Boolean inclusive-OR of I and J.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 12214,12231 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IOR(I, J)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      J          The type shall be `INTEGER', of the same kind
!                 as I.  (As a GNU extension, different kinds
!                 are also permitted.)
  
  _Return value_:
!      The return type is `INTEGER', of the same kind as the arguments.
!      (If the argument kinds differ, it is of the same kind as the
!      larger argument.)
  
  _See also_:
       *note IEOR::, *note IAND::, *note IBITS::, *note IBSET::, *note
--- 12096,12113 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IOR(I, J)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      J           The type shall be 'INTEGER', of the same kind as
!                  I.  (As a GNU extension, different kinds are
!                  also permitted.)
  
  _Return value_:
!      The return type is 'INTEGER', of the same kind as the arguments.
!      (If the argument kinds differ, it is of the same kind as the larger
!      argument.)
  
  _See also_:
       *note IEOR::, *note IAND::, *note IBITS::, *note IBSET::, *note
*************** _See also_:
*** 12234,12245 ****
  
  File: gfortran.info,  Node: IPARITY,  Next: IRAND,  Prev: IOR,  Up: Intrinsic Procedures
  
! 9.145 `IPARITY' -- Bitwise XOR of array elements
  ================================================
  
  _Description_:
       Reduces with bitwise XOR (exclusive or) the elements of ARRAY along
!      dimension DIM if the corresponding element in MASK is `TRUE'.
  
  _Standard_:
       Fortran 2008 and later
--- 12116,12127 ----
  
  File: gfortran.info,  Node: IPARITY,  Next: IRAND,  Prev: IOR,  Up: Intrinsic Procedures
  
! 9.145 'IPARITY' -- Bitwise XOR of array elements
  ================================================
  
  _Description_:
       Reduces with bitwise XOR (exclusive or) the elements of ARRAY along
!      dimension DIM if the corresponding element in MASK is 'TRUE'.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 12248,12270 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = IPARITY(ARRAY[, MASK])'
!      `RESULT = IPARITY(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER'
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of ARRAY.
!      MASK       (Optional) shall be of type `LOGICAL' and
!                 either be a scalar or an array of the same
!                 shape as ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the bitwise XOR of all elements in
!      ARRAY is returned. Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
--- 12130,12152 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = IPARITY(ARRAY[, MASK])'
!      'RESULT = IPARITY(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER'
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of ARRAY.
!      MASK        (Optional) shall be of type 'LOGICAL' and either
!                  be a scalar or an array of the same shape as
!                  ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the bitwise XOR of all elements in
!      ARRAY is returned.  Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
*************** _See also_:
*** 12285,12305 ****
  
  File: gfortran.info,  Node: IRAND,  Next: IS_IOSTAT_END,  Prev: IPARITY,  Up: Intrinsic Procedures
  
! 9.146 `IRAND' -- Integer pseudo-random number
  =============================================
  
  _Description_:
!      `IRAND(FLAG)' returns a pseudo-random number from a uniform
       distribution between 0 and a system-dependent limit (which is in
!      most cases 2147483647). If FLAG is 0, the next number in the
       current sequence is returned; if FLAG is 1, the generator is
!      restarted by `CALL SRAND(0)'; if FLAG has any other value, it is
!      used as a new seed with `SRAND'.
  
       This intrinsic routine is provided for backwards compatibility with
!      GNU Fortran 77. It implements a simple modulo generator as provided
!      by `g77'. For new code, one should consider the use of *note
!      RANDOM_NUMBER:: as it implements a superior algorithm.
  
  _Standard_:
       GNU extension
--- 12167,12187 ----
  
  File: gfortran.info,  Node: IRAND,  Next: IS_IOSTAT_END,  Prev: IPARITY,  Up: Intrinsic Procedures
  
! 9.146 'IRAND' -- Integer pseudo-random number
  =============================================
  
  _Description_:
!      'IRAND(FLAG)' returns a pseudo-random number from a uniform
       distribution between 0 and a system-dependent limit (which is in
!      most cases 2147483647).  If FLAG is 0, the next number in the
       current sequence is returned; if FLAG is 1, the generator is
!      restarted by 'CALL SRAND(0)'; if FLAG has any other value, it is
!      used as a new seed with 'SRAND'.
  
       This intrinsic routine is provided for backwards compatibility with
!      GNU Fortran 77.  It implements a simple modulo generator as
!      provided by 'g77'.  For new code, one should consider the use of
!      *note RANDOM_NUMBER:: as it implements a superior algorithm.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 12308,12320 ****
       Function
  
  _Syntax_:
!      `RESULT = IRAND(I)'
  
  _Arguments_:
!      I          Shall be a scalar `INTEGER' of kind 4.
  
  _Return value_:
!      The return value is of `INTEGER(kind=4)' type.
  
  _Example_:
            program test_irand
--- 12190,12202 ----
       Function
  
  _Syntax_:
!      'RESULT = IRAND(I)'
  
  _Arguments_:
!      I           Shall be a scalar 'INTEGER' of kind 4.
  
  _Return value_:
!      The return value is of 'INTEGER(kind=4)' type.
  
  _Example_:
            program test_irand
*************** _Example_:
*** 12325,12342 ****
              print *, irand(seed), irand(), irand(), irand()
            end program test_irand
  
- 
  
  File: gfortran.info,  Node: IS_IOSTAT_END,  Next: IS_IOSTAT_EOR,  Prev: IRAND,  Up: Intrinsic Procedures
  
! 9.147 `IS_IOSTAT_END' -- Test for end-of-file value
  ===================================================
  
  _Description_:
!      `IS_IOSTAT_END' tests whether an variable has the value of the I/O
!      status "end of file". The function is equivalent to comparing the
!      variable with the `IOSTAT_END' parameter of the intrinsic module
!      `ISO_FORTRAN_ENV'.
  
  _Standard_:
       Fortran 2003 and later
--- 12207,12223 ----
              print *, irand(seed), irand(), irand(), irand()
            end program test_irand
  
  
  File: gfortran.info,  Node: IS_IOSTAT_END,  Next: IS_IOSTAT_EOR,  Prev: IRAND,  Up: Intrinsic Procedures
  
! 9.147 'IS_IOSTAT_END' -- Test for end-of-file value
  ===================================================
  
  _Description_:
!      'IS_IOSTAT_END' tests whether an variable has the value of the I/O
!      status "end of file".  The function is equivalent to comparing the
!      variable with the 'IOSTAT_END' parameter of the intrinsic module
!      'ISO_FORTRAN_ENV'.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 12345,12359 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IS_IOSTAT_END(I)'
  
  _Arguments_:
!      I          Shall be of the type `INTEGER'.
  
  _Return value_:
!      Returns a `LOGICAL' of the default kind, which `.TRUE.' if I has
!      the value which indicates an end of file condition for `IOSTAT='
!      specifiers, and is `.FALSE.' otherwise.
  
  _Example_:
            PROGRAM iostat
--- 12226,12240 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IS_IOSTAT_END(I)'
  
  _Arguments_:
!      I           Shall be of the type 'INTEGER'.
  
  _Return value_:
!      Returns a 'LOGICAL' of the default kind, which '.TRUE.' if I has
!      the value which indicates an end of file condition for 'IOSTAT='
!      specifiers, and is '.FALSE.' otherwise.
  
  _Example_:
            PROGRAM iostat
*************** _Example_:
*** 12367,12380 ****
  
  File: gfortran.info,  Node: IS_IOSTAT_EOR,  Next: ISATTY,  Prev: IS_IOSTAT_END,  Up: Intrinsic Procedures
  
! 9.148 `IS_IOSTAT_EOR' -- Test for end-of-record value
  =====================================================
  
  _Description_:
!      `IS_IOSTAT_EOR' tests whether an variable has the value of the I/O
!      status "end of record". The function is equivalent to comparing the
!      variable with the `IOSTAT_EOR' parameter of the intrinsic module
!      `ISO_FORTRAN_ENV'.
  
  _Standard_:
       Fortran 2003 and later
--- 12248,12261 ----
  
  File: gfortran.info,  Node: IS_IOSTAT_EOR,  Next: ISATTY,  Prev: IS_IOSTAT_END,  Up: Intrinsic Procedures
  
! 9.148 'IS_IOSTAT_EOR' -- Test for end-of-record value
  =====================================================
  
  _Description_:
!      'IS_IOSTAT_EOR' tests whether an variable has the value of the I/O
!      status "end of record".  The function is equivalent to comparing
!      the variable with the 'IOSTAT_EOR' parameter of the intrinsic
!      module 'ISO_FORTRAN_ENV'.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 12383,12397 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = IS_IOSTAT_EOR(I)'
  
  _Arguments_:
!      I          Shall be of the type `INTEGER'.
  
  _Return value_:
!      Returns a `LOGICAL' of the default kind, which `.TRUE.' if I has
!      the value which indicates an end of file condition for `IOSTAT='
!      specifiers, and is `.FALSE.' otherwise.
  
  _Example_:
            PROGRAM iostat
--- 12264,12278 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = IS_IOSTAT_EOR(I)'
  
  _Arguments_:
!      I           Shall be of the type 'INTEGER'.
  
  _Return value_:
!      Returns a 'LOGICAL' of the default kind, which '.TRUE.' if I has
!      the value which indicates an end of file condition for 'IOSTAT='
!      specifiers, and is '.FALSE.' otherwise.
  
  _Example_:
            PROGRAM iostat
*************** _Example_:
*** 12405,12411 ****
  
  File: gfortran.info,  Node: ISATTY,  Next: ISHFT,  Prev: IS_IOSTAT_EOR,  Up: Intrinsic Procedures
  
! 9.149 `ISATTY' -- Whether a unit is a terminal device.
  ======================================================
  
  _Description_:
--- 12286,12292 ----
  
  File: gfortran.info,  Node: ISATTY,  Next: ISHFT,  Prev: IS_IOSTAT_EOR,  Up: Intrinsic Procedures
  
! 9.149 'ISATTY' -- Whether a unit is a terminal device.
  ======================================================
  
  _Description_:
*************** _Class_:
*** 12418,12431 ****
       Function
  
  _Syntax_:
!      `RESULT = ISATTY(UNIT)'
  
  _Arguments_:
!      UNIT       Shall be a scalar `INTEGER'.
  
  _Return value_:
!      Returns `.TRUE.' if the UNIT is connected to a terminal device,
!      `.FALSE.' otherwise.
  
  _Example_:
            PROGRAM test_isatty
--- 12299,12312 ----
       Function
  
  _Syntax_:
!      'RESULT = ISATTY(UNIT)'
  
  _Arguments_:
!      UNIT        Shall be a scalar 'INTEGER'.
  
  _Return value_:
!      Returns '.TRUE.' if the UNIT is connected to a terminal device,
!      '.FALSE.' otherwise.
  
  _Example_:
            PROGRAM test_isatty
*************** _Example_:
*** 12434,12455 ****
                write(*,*) isatty(unit=unit)
              END DO
            END PROGRAM
- 
  _See also_:
       *note TTYNAM::
  
  
  File: gfortran.info,  Node: ISHFT,  Next: ISHFTC,  Prev: ISATTY,  Up: Intrinsic Procedures
  
! 9.150 `ISHFT' -- Shift bits
  ===========================
  
  _Description_:
!      `ISHFT' returns a value corresponding to I with all of the bits
       shifted SHIFT places.  A value of SHIFT greater than zero
       corresponds to a left shift, a value of zero corresponds to no
!      shift, and a value less than zero corresponds to a right shift.
!      If the absolute value of SHIFT is greater than `BIT_SIZE(I)', the
       value is undefined.  Bits shifted out from the left end or right
       end are lost; zeros are shifted in from the opposite end.
  
--- 12315,12335 ----
                write(*,*) isatty(unit=unit)
              END DO
            END PROGRAM
  _See also_:
       *note TTYNAM::
  
  
  File: gfortran.info,  Node: ISHFT,  Next: ISHFTC,  Prev: ISATTY,  Up: Intrinsic Procedures
  
! 9.150 'ISHFT' -- Shift bits
  ===========================
  
  _Description_:
!      'ISHFT' returns a value corresponding to I with all of the bits
       shifted SHIFT places.  A value of SHIFT greater than zero
       corresponds to a left shift, a value of zero corresponds to no
!      shift, and a value less than zero corresponds to a right shift.  If
!      the absolute value of SHIFT is greater than 'BIT_SIZE(I)', the
       value is undefined.  Bits shifted out from the left end or right
       end are lost; zeros are shifted in from the opposite end.
  
*************** _Class_:
*** 12460,12473 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ISHFT(I, SHIFT)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFTC::
--- 12340,12353 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ISHFT(I, SHIFT)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFTC::
*************** _See also_:
*** 12475,12492 ****
  
  File: gfortran.info,  Node: ISHFTC,  Next: ISNAN,  Prev: ISHFT,  Up: Intrinsic Procedures
  
! 9.151 `ISHFTC' -- Shift bits circularly
  =======================================
  
  _Description_:
!      `ISHFTC' returns a value corresponding to I with the rightmost
!      SIZE bits shifted circularly SHIFT places; that is, bits shifted
!      out one end are shifted into the opposite end.  A value of SHIFT
!      greater than zero corresponds to a left shift, a value of zero
!      corresponds to no shift, and a value less than zero corresponds to
!      a right shift.  The absolute value of SHIFT must be less than
!      SIZE.  If the SIZE argument is omitted, it is taken to be
!      equivalent to `BIT_SIZE(I)'.
  
  _Standard_:
       Fortran 95 and later
--- 12355,12372 ----
  
  File: gfortran.info,  Node: ISHFTC,  Next: ISNAN,  Prev: ISHFT,  Up: Intrinsic Procedures
  
! 9.151 'ISHFTC' -- Shift bits circularly
  =======================================
  
  _Description_:
!      'ISHFTC' returns a value corresponding to I with the rightmost SIZE
!      bits shifted circularly SHIFT places; that is, bits shifted out one
!      end are shifted into the opposite end.  A value of SHIFT greater
!      than zero corresponds to a left shift, a value of zero corresponds
!      to no shift, and a value less than zero corresponds to a right
!      shift.  The absolute value of SHIFT must be less than SIZE.  If the
!      SIZE argument is omitted, it is taken to be equivalent to
!      'BIT_SIZE(I)'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 12495,12511 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = ISHFTC(I, SHIFT [, SIZE])'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
!      SIZE       (Optional) The type shall be `INTEGER'; the
!                 value must be greater than zero and less than
!                 or equal to `BIT_SIZE(I)'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFT::
--- 12375,12391 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = ISHFTC(I, SHIFT [, SIZE])'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
!      SIZE        (Optional) The type shall be 'INTEGER'; the
!                  value must be greater than zero and less than or
!                  equal to 'BIT_SIZE(I)'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFT::
*************** _See also_:
*** 12513,12525 ****
  
  File: gfortran.info,  Node: ISNAN,  Next: ITIME,  Prev: ISHFTC,  Up: Intrinsic Procedures
  
! 9.152 `ISNAN' -- Test for a NaN
  ===============================
  
  _Description_:
!      `ISNAN' tests whether a floating-point value is an IEEE
       Not-a-Number (NaN).
- 
  _Standard_:
       GNU extension
  
--- 12393,12404 ----
  
  File: gfortran.info,  Node: ISNAN,  Next: ITIME,  Prev: ISHFTC,  Up: Intrinsic Procedures
  
! 9.152 'ISNAN' -- Test for a NaN
  ===============================
  
  _Description_:
!      'ISNAN' tests whether a floating-point value is an IEEE
       Not-a-Number (NaN).
  _Standard_:
       GNU extension
  
*************** _Class_:
*** 12527,12540 ****
       Elemental function
  
  _Syntax_:
!      `ISNAN(X)'
  
  _Arguments_:
!      X          Variable of the type `REAL'.
  
  _Return value_:
!      Returns a default-kind `LOGICAL'. The returned value is `TRUE' if
!      X is a NaN and `FALSE' otherwise.
  
  _Example_:
            program test_nan
--- 12406,12420 ----
       Elemental function
  
  _Syntax_:
!      'ISNAN(X)'
  
  _Arguments_:
!      X           Variable of the type 'REAL'.
!                  
  
  _Return value_:
!      Returns a default-kind 'LOGICAL'.  The returned value is 'TRUE' if
!      X is a NaN and 'FALSE' otherwise.
  
  _Example_:
            program test_nan
*************** _Example_:
*** 12548,12559 ****
  
  File: gfortran.info,  Node: ITIME,  Next: KILL,  Prev: ISNAN,  Up: Intrinsic Procedures
  
! 9.153 `ITIME' -- Get current local time subroutine (hour/minutes/seconds)
  =========================================================================
  
  _Description_:
!      `IDATE(VALUES)' Fills VALUES with the numerical values at the
!      current local time. The hour (in the range 1-24), minute (in the
       range 1-60), and seconds (in the range 1-60) appear in elements 1,
       2, and 3 of VALUES, respectively.
  
--- 12428,12439 ----
  
  File: gfortran.info,  Node: ITIME,  Next: KILL,  Prev: ISNAN,  Up: Intrinsic Procedures
  
! 9.153 'ITIME' -- Get current local time subroutine (hour/minutes/seconds)
  =========================================================================
  
  _Description_:
!      'IDATE(VALUES)' Fills VALUES with the numerical values at the
!      current local time.  The hour (in the range 1-24), minute (in the
       range 1-60), and seconds (in the range 1-60) appear in elements 1,
       2, and 3 of VALUES, respectively.
  
*************** _Class_:
*** 12564,12574 ****
       Subroutine
  
  _Syntax_:
!      `CALL ITIME(VALUES)'
  
  _Arguments_:
!      VALUES     The type shall be `INTEGER, DIMENSION(3)' and
!                 the kind shall be the default integer kind.
  
  _Return value_:
       Does not return anything.
--- 12444,12454 ----
       Subroutine
  
  _Syntax_:
!      'CALL ITIME(VALUES)'
  
  _Arguments_:
!      VALUES      The type shall be 'INTEGER, DIMENSION(3)' and
!                  the kind shall be the default integer kind.
  
  _Return value_:
       Does not return anything.
*************** _Example_:
*** 12585,12598 ****
  
  File: gfortran.info,  Node: KILL,  Next: KIND,  Prev: ITIME,  Up: Intrinsic Procedures
  
! 9.154 `KILL' -- Send a signal to a process
  ==========================================
  
  _Description_:
- 
  _Standard_:
       Sends the signal specified by SIGNAL to the process PID.  See
!      `kill(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 12465,12477 ----
  
  File: gfortran.info,  Node: KILL,  Next: KIND,  Prev: ITIME,  Up: Intrinsic Procedures
  
! 9.154 'KILL' -- Send a signal to a process
  ==========================================
  
  _Description_:
  _Standard_:
       Sends the signal specified by SIGNAL to the process PID.  See
!      'kill(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 12601,12615 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL KILL(C, VALUE [, STATUS])'
!      `STATUS = KILL(C, VALUE)'
  
  _Arguments_:
!      C          Shall be a scalar `INTEGER', with `INTENT(IN)'
!      VALUE      Shall be a scalar `INTEGER', with `INTENT(IN)'
!      STATUS     (Optional) status flag of type `INTEGER(4)' or
!                 `INTEGER(8)'. Returns 0 on success, or a
!                 system-specific error code otherwise.
  
  _See also_:
       *note ABORT::, *note EXIT::
--- 12480,12494 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL KILL(C, VALUE [, STATUS])'
!      'STATUS = KILL(C, VALUE)'
  
  _Arguments_:
!      C           Shall be a scalar 'INTEGER', with 'INTENT(IN)'
!      VALUE       Shall be a scalar 'INTEGER', with 'INTENT(IN)'
!      STATUS      (Optional) status flag of type 'INTEGER(4)' or
!                  'INTEGER(8)'.  Returns 0 on success, or a
!                  system-specific error code otherwise.
  
  _See also_:
       *note ABORT::, *note EXIT::
*************** _See also_:
*** 12617,12627 ****
  
  File: gfortran.info,  Node: KIND,  Next: LBOUND,  Prev: KILL,  Up: Intrinsic Procedures
  
! 9.155 `KIND' -- Kind of an entity
  =================================
  
  _Description_:
!      `KIND(X)' returns the kind value of the entity X.
  
  _Standard_:
       Fortran 95 and later
--- 12496,12506 ----
  
  File: gfortran.info,  Node: KIND,  Next: LBOUND,  Prev: KILL,  Up: Intrinsic Procedures
  
! 9.155 'KIND' -- Kind of an entity
  =================================
  
  _Description_:
!      'KIND(X)' returns the kind value of the entity X.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 12630,12643 ****
       Inquiry function
  
  _Syntax_:
!      `K = KIND(X)'
  
  _Arguments_:
!      X          Shall be of type `LOGICAL', `INTEGER', `REAL',
!                 `COMPLEX' or `CHARACTER'.
  
  _Return value_:
!      The return value is a scalar of type `INTEGER' and of the default
       integer kind.
  
  _Example_:
--- 12509,12522 ----
       Inquiry function
  
  _Syntax_:
!      'K = KIND(X)'
  
  _Arguments_:
!      X           Shall be of type 'LOGICAL', 'INTEGER', 'REAL',
!                  'COMPLEX' or 'CHARACTER'.
  
  _Return value_:
!      The return value is a scalar of type 'INTEGER' and of the default
       integer kind.
  
  _Example_:
*************** _Example_:
*** 12649,12665 ****
              print *, "The default logical kind is ", kl
            end program test_kind
  
- 
  
  File: gfortran.info,  Node: LBOUND,  Next: LCOBOUND,  Prev: KIND,  Up: Intrinsic Procedures
  
! 9.156 `LBOUND' -- Lower dimension bounds of an array
  ====================================================
  
  _Description_:
!      Returns the lower bounds of an array, or a single lower bound
!      along the DIM dimension.
! 
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
  
--- 12528,12542 ----
              print *, "The default logical kind is ", kl
            end program test_kind
  
  
  File: gfortran.info,  Node: LBOUND,  Next: LCOBOUND,  Prev: KIND,  Up: Intrinsic Procedures
  
! 9.156 'LBOUND' -- Lower dimension bounds of an array
  ====================================================
  
  _Description_:
!      Returns the lower bounds of an array, or a single lower bound along
!      the DIM dimension.
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
  
*************** _Class_:
*** 12667,12690 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = LBOUND(ARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY      Shall be an array, of any type.
!      DIM        (Optional) Shall be a scalar `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the lower bounds of ARRAY.  If
       DIM is present, the result is a scalar corresponding to the lower
!      bound of the array along that dimension.  If ARRAY is an
!      expression rather than a whole array or array structure component,
!      or if it has a zero extent along the relevant dimension, the lower
!      bound is taken to be 1.
  
  _See also_:
       *note UBOUND::, *note LCOBOUND::
--- 12544,12567 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = LBOUND(ARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY       Shall be an array, of any type.
!      DIM         (Optional) Shall be a scalar 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the lower bounds of ARRAY.  If
       DIM is present, the result is a scalar corresponding to the lower
!      bound of the array along that dimension.  If ARRAY is an expression
!      rather than a whole array or array structure component, or if it
!      has a zero extent along the relevant dimension, the lower bound is
!      taken to be 1.
  
  _See also_:
       *note UBOUND::, *note LCOBOUND::
*************** _See also_:
*** 12692,12704 ****
  
  File: gfortran.info,  Node: LCOBOUND,  Next: LEADZ,  Prev: LBOUND,  Up: Intrinsic Procedures
  
! 9.157 `LCOBOUND' -- Lower codimension bounds of an array
  ========================================================
  
  _Description_:
       Returns the lower bounds of a coarray, or a single lower cobound
       along the DIM codimension.
- 
  _Standard_:
       Fortran 2008 and later
  
--- 12569,12580 ----
  
  File: gfortran.info,  Node: LCOBOUND,  Next: LEADZ,  Prev: LBOUND,  Up: Intrinsic Procedures
  
! 9.157 'LCOBOUND' -- Lower codimension bounds of an array
  ========================================================
  
  _Description_:
       Returns the lower bounds of a coarray, or a single lower cobound
       along the DIM codimension.
  _Standard_:
       Fortran 2008 and later
  
*************** _Class_:
*** 12706,12722 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = LCOBOUND(COARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY      Shall be an coarray, of any type.
!      DIM        (Optional) Shall be a scalar `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the lower cobounds of COARRAY.
       If DIM is present, the result is a scalar corresponding to the
--- 12582,12598 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = LCOBOUND(COARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY       Shall be an coarray, of any type.
!      DIM         (Optional) Shall be a scalar 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the lower cobounds of COARRAY.
       If DIM is present, the result is a scalar corresponding to the
*************** _See also_:
*** 12728,12738 ****
  
  File: gfortran.info,  Node: LEADZ,  Next: LEN,  Prev: LCOBOUND,  Up: Intrinsic Procedures
  
! 9.158 `LEADZ' -- Number of leading zero bits of an integer
  ==========================================================
  
  _Description_:
!      `LEADZ' returns the number of leading zero bits of an integer.
  
  _Standard_:
       Fortran 2008 and later
--- 12604,12614 ----
  
  File: gfortran.info,  Node: LEADZ,  Next: LEN,  Prev: LCOBOUND,  Up: Intrinsic Procedures
  
! 9.158 'LEADZ' -- Number of leading zero bits of an integer
  ==========================================================
  
  _Description_:
!      'LEADZ' returns the number of leading zero bits of an integer.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 12741,12754 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LEADZ(I)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
  
  _Return value_:
!      The type of the return value is the default `INTEGER'.  If all the
!      bits of `I' are zero, the result value is `BIT_SIZE(I)'.
  
  _Example_:
            PROGRAM test_leadz
--- 12617,12630 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LEADZ(I)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
  
  _Return value_:
!      The type of the return value is the default 'INTEGER'.  If all the
!      bits of 'I' are zero, the result value is 'BIT_SIZE(I)'.
  
  _Example_:
            PROGRAM test_leadz
*************** _See also_:
*** 12762,12768 ****
  
  File: gfortran.info,  Node: LEN,  Next: LEN_TRIM,  Prev: LEADZ,  Up: Intrinsic Procedures
  
! 9.159 `LEN' -- Length of a character entity
  ===========================================
  
  _Description_:
--- 12638,12644 ----
  
  File: gfortran.info,  Node: LEN,  Next: LEN_TRIM,  Prev: LEADZ,  Up: Intrinsic Procedures
  
! 9.159 'LEN' -- Length of a character entity
  ===========================================
  
  _Description_:
*************** _Class_:
*** 12778,12800 ****
       Inquiry function
  
  _Syntax_:
!      `L = LEN(STRING [, KIND])'
  
  _Arguments_:
!      STRING     Shall be a scalar or array of type
!                 `CHARACTER', with `INTENT(IN)'
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `LEN(STRING)' `CHARACTER'   `INTEGER'     Fortran 77 and
!                                                later
  
  _See also_:
       *note LEN_TRIM::, *note ADJUSTL::, *note ADJUSTR::
--- 12654,12676 ----
       Inquiry function
  
  _Syntax_:
!      'L = LEN(STRING [, KIND])'
  
  _Arguments_:
!      STRING      Shall be a scalar or array of type 'CHARACTER',
!                  with 'INTENT(IN)'
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'LEN(STRING)'  'CHARACTER'    'INTEGER'      Fortran 77 and
!                                                   later
  
  _See also_:
       *note LEN_TRIM::, *note ADJUSTL::, *note ADJUSTR::
*************** _See also_:
*** 12802,12808 ****
  
  File: gfortran.info,  Node: LEN_TRIM,  Next: LGE,  Prev: LEN,  Up: Intrinsic Procedures
  
! 9.160 `LEN_TRIM' -- Length of a character entity without trailing blank characters
  ==================================================================================
  
  _Description_:
--- 12678,12684 ----
  
  File: gfortran.info,  Node: LEN_TRIM,  Next: LGE,  Prev: LEN,  Up: Intrinsic Procedures
  
! 9.160 'LEN_TRIM' -- Length of a character entity without trailing blank characters
  ==================================================================================
  
  _Description_:
*************** _Class_:
*** 12816,12832 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LEN_TRIM(STRING [, KIND])'
  
  _Arguments_:
!      STRING     Shall be a scalar of type `CHARACTER', with
!                 `INTENT(IN)'
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _See also_:
--- 12692,12708 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LEN_TRIM(STRING [, KIND])'
  
  _Arguments_:
!      STRING      Shall be a scalar of type 'CHARACTER', with
!                  'INTENT(IN)'
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _See also_:
*************** _See also_:
*** 12835,12841 ****
  
  File: gfortran.info,  Node: LGE,  Next: LGT,  Prev: LEN_TRIM,  Up: Intrinsic Procedures
  
! 9.161 `LGE' -- Lexical greater than or equal
  ============================================
  
  _Description_:
--- 12711,12717 ----
  
  File: gfortran.info,  Node: LGE,  Next: LGT,  Prev: LEN_TRIM,  Up: Intrinsic Procedures
  
! 9.161 'LGE' -- Lexical greater than or equal
  ============================================
  
  _Description_:
*************** _Description_:
*** 12845,12855 ****
       same length, the shorter is compared as if spaces were appended to
       it to form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics `LGE', `LGT', `LLE',
!      and `LLT' differ from the corresponding intrinsic operators
!      `.GE.', `.GT.', `.LE.', and `.LT.', in that the latter use the
!      processor's character ordering (which is not ASCII on some
!      targets), whereas the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
--- 12721,12731 ----
       same length, the shorter is compared as if spaces were appended to
       it to form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics 'LGE', 'LGT', 'LLE',
!      and 'LLT' differ from the corresponding intrinsic operators '.GE.',
!      '.GT.', '.LE.', and '.LT.', in that the latter use the processor's
!      character ordering (which is not ASCII on some targets), whereas
!      the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 12858,12877 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LGE(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A   Shall be of default `CHARACTER' type.
!      STRING_B   Shall be of default `CHARACTER' type.
  
  _Return value_:
!      Returns `.TRUE.' if `STRING_A >= STRING_B', and `.FALSE.'
       otherwise, based on the ASCII ordering.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `LGE(STRING_A,`CHARACTER'   `LOGICAL'     Fortran 77 and
!      STRING_B)'                                later
  
  _See also_:
       *note LGT::, *note LLE::, *note LLT::
--- 12734,12753 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LGE(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A    Shall be of default 'CHARACTER' type.
!      STRING_B    Shall be of default 'CHARACTER' type.
  
  _Return value_:
!      Returns '.TRUE.' if 'STRING_A >= STRING_B', and '.FALSE.'
       otherwise, based on the ASCII ordering.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'LGE(STRING_A, 'CHARACTER'    'LOGICAL'      Fortran 77 and
!      STRING_B)'                                   later
  
  _See also_:
       *note LGT::, *note LLE::, *note LLT::
*************** _See also_:
*** 12879,12899 ****
  
  File: gfortran.info,  Node: LGT,  Next: LINK,  Prev: LGE,  Up: Intrinsic Procedures
  
! 9.162 `LGT' -- Lexical greater than
  ===================================
  
  _Description_:
       Determines whether one string is lexically greater than another
       string, where the two strings are interpreted as containing ASCII
       character codes.  If the String A and String B are not the same
!      length, the shorter is compared as if spaces were appended to it
!      to form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics `LGE', `LGT', `LLE',
!      and `LLT' differ from the corresponding intrinsic operators
!      `.GE.', `.GT.', `.LE.', and `.LT.', in that the latter use the
!      processor's character ordering (which is not ASCII on some
!      targets), whereas the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
--- 12755,12775 ----
  
  File: gfortran.info,  Node: LGT,  Next: LINK,  Prev: LGE,  Up: Intrinsic Procedures
  
! 9.162 'LGT' -- Lexical greater than
  ===================================
  
  _Description_:
       Determines whether one string is lexically greater than another
       string, where the two strings are interpreted as containing ASCII
       character codes.  If the String A and String B are not the same
!      length, the shorter is compared as if spaces were appended to it to
!      form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics 'LGE', 'LGT', 'LLE',
!      and 'LLT' differ from the corresponding intrinsic operators '.GE.',
!      '.GT.', '.LE.', and '.LT.', in that the latter use the processor's
!      character ordering (which is not ASCII on some targets), whereas
!      the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 12902,12921 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LGT(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A   Shall be of default `CHARACTER' type.
!      STRING_B   Shall be of default `CHARACTER' type.
  
  _Return value_:
!      Returns `.TRUE.' if `STRING_A > STRING_B', and `.FALSE.'
!      otherwise, based on the ASCII ordering.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `LGT(STRING_A,`CHARACTER'   `LOGICAL'     Fortran 77 and
!      STRING_B)'                                later
  
  _See also_:
       *note LGE::, *note LLE::, *note LLT::
--- 12778,12797 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LGT(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A    Shall be of default 'CHARACTER' type.
!      STRING_B    Shall be of default 'CHARACTER' type.
  
  _Return value_:
!      Returns '.TRUE.' if 'STRING_A > STRING_B', and '.FALSE.' otherwise,
!      based on the ASCII ordering.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'LGT(STRING_A, 'CHARACTER'    'LOGICAL'      Fortran 77 and
!      STRING_B)'                                   later
  
  _See also_:
       *note LGE::, *note LLE::, *note LLT::
*************** _See also_:
*** 12923,12937 ****
  
  File: gfortran.info,  Node: LINK,  Next: LLE,  Prev: LGT,  Up: Intrinsic Procedures
  
! 9.163 `LINK' -- Create a hard link
  ==================================
  
  _Description_:
!      Makes a (hard) link from file PATH1 to PATH2. A null character
!      (`CHAR(0)') can be used to mark the end of the names in PATH1 and
       PATH2; otherwise, trailing blanks in the file names are ignored.
       If the STATUS argument is supplied, it contains 0 on success or a
!      nonzero error code upon return; see `link(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 12799,12813 ----
  
  File: gfortran.info,  Node: LINK,  Next: LLE,  Prev: LGT,  Up: Intrinsic Procedures
  
! 9.163 'LINK' -- Create a hard link
  ==================================
  
  _Description_:
!      Makes a (hard) link from file PATH1 to PATH2.  A null character
!      ('CHAR(0)') can be used to mark the end of the names in PATH1 and
       PATH2; otherwise, trailing blanks in the file names are ignored.
       If the STATUS argument is supplied, it contains 0 on success or a
!      nonzero error code upon return; see 'link(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 12943,12955 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL LINK(PATH1, PATH2 [, STATUS])'
!      `STATUS = LINK(PATH1, PATH2)'
  
  _Arguments_:
!      PATH1      Shall be of default `CHARACTER' type.
!      PATH2      Shall be of default `CHARACTER' type.
!      STATUS     (Optional) Shall be of default `INTEGER' type.
  
  _See also_:
       *note SYMLNK::, *note UNLINK::
--- 12819,12831 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL LINK(PATH1, PATH2 [, STATUS])'
!      'STATUS = LINK(PATH1, PATH2)'
  
  _Arguments_:
!      PATH1       Shall be of default 'CHARACTER' type.
!      PATH2       Shall be of default 'CHARACTER' type.
!      STATUS      (Optional) Shall be of default 'INTEGER' type.
  
  _See also_:
       *note SYMLNK::, *note UNLINK::
*************** _See also_:
*** 12957,12978 ****
  
  File: gfortran.info,  Node: LLE,  Next: LLT,  Prev: LINK,  Up: Intrinsic Procedures
  
! 9.164 `LLE' -- Lexical less than or equal
  =========================================
  
  _Description_:
       Determines whether one string is lexically less than or equal to
!      another string, where the two strings are interpreted as
!      containing ASCII character codes.  If the String A and String B
!      are not the same length, the shorter is compared as if spaces were
!      appended to it to form a value that has the same length as the
!      longer.
  
!      In general, the lexical comparison intrinsics `LGE', `LGT', `LLE',
!      and `LLT' differ from the corresponding intrinsic operators
!      `.GE.', `.GT.', `.LE.', and `.LT.', in that the latter use the
!      processor's character ordering (which is not ASCII on some
!      targets), whereas the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
--- 12833,12853 ----
  
  File: gfortran.info,  Node: LLE,  Next: LLT,  Prev: LINK,  Up: Intrinsic Procedures
  
! 9.164 'LLE' -- Lexical less than or equal
  =========================================
  
  _Description_:
       Determines whether one string is lexically less than or equal to
!      another string, where the two strings are interpreted as containing
!      ASCII character codes.  If the String A and String B are not the
!      same length, the shorter is compared as if spaces were appended to
!      it to form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics 'LGE', 'LGT', 'LLE',
!      and 'LLT' differ from the corresponding intrinsic operators '.GE.',
!      '.GT.', '.LE.', and '.LT.', in that the latter use the processor's
!      character ordering (which is not ASCII on some targets), whereas
!      the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 12981,13000 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LLE(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A   Shall be of default `CHARACTER' type.
!      STRING_B   Shall be of default `CHARACTER' type.
  
  _Return value_:
!      Returns `.TRUE.' if `STRING_A <= STRING_B', and `.FALSE.'
       otherwise, based on the ASCII ordering.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `LLE(STRING_A,`CHARACTER'   `LOGICAL'     Fortran 77 and
!      STRING_B)'                                later
  
  _See also_:
       *note LGE::, *note LGT::, *note LLT::
--- 12856,12875 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LLE(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A    Shall be of default 'CHARACTER' type.
!      STRING_B    Shall be of default 'CHARACTER' type.
  
  _Return value_:
!      Returns '.TRUE.' if 'STRING_A <= STRING_B', and '.FALSE.'
       otherwise, based on the ASCII ordering.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'LLE(STRING_A, 'CHARACTER'    'LOGICAL'      Fortran 77 and
!      STRING_B)'                                   later
  
  _See also_:
       *note LGE::, *note LGT::, *note LLT::
*************** _See also_:
*** 13002,13022 ****
  
  File: gfortran.info,  Node: LLT,  Next: LNBLNK,  Prev: LLE,  Up: Intrinsic Procedures
  
! 9.165 `LLT' -- Lexical less than
  ================================
  
  _Description_:
       Determines whether one string is lexically less than another
       string, where the two strings are interpreted as containing ASCII
       character codes.  If the String A and String B are not the same
!      length, the shorter is compared as if spaces were appended to it
!      to form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics `LGE', `LGT', `LLE',
!      and `LLT' differ from the corresponding intrinsic operators
!      `.GE.', `.GT.', `.LE.', and `.LT.', in that the latter use the
!      processor's character ordering (which is not ASCII on some
!      targets), whereas the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
--- 12877,12897 ----
  
  File: gfortran.info,  Node: LLT,  Next: LNBLNK,  Prev: LLE,  Up: Intrinsic Procedures
  
! 9.165 'LLT' -- Lexical less than
  ================================
  
  _Description_:
       Determines whether one string is lexically less than another
       string, where the two strings are interpreted as containing ASCII
       character codes.  If the String A and String B are not the same
!      length, the shorter is compared as if spaces were appended to it to
!      form a value that has the same length as the longer.
  
!      In general, the lexical comparison intrinsics 'LGE', 'LGT', 'LLE',
!      and 'LLT' differ from the corresponding intrinsic operators '.GE.',
!      '.GT.', '.LE.', and '.LT.', in that the latter use the processor's
!      character ordering (which is not ASCII on some targets), whereas
!      the former always use the ASCII ordering.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 13025,13044 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LLT(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A   Shall be of default `CHARACTER' type.
!      STRING_B   Shall be of default `CHARACTER' type.
  
  _Return value_:
!      Returns `.TRUE.' if `STRING_A < STRING_B', and `.FALSE.'
!      otherwise, based on the ASCII ordering.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `LLT(STRING_A,`CHARACTER'   `LOGICAL'     Fortran 77 and
!      STRING_B)'                                later
  
  _See also_:
       *note LGE::, *note LGT::, *note LLE::
--- 12900,12919 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LLT(STRING_A, STRING_B)'
  
  _Arguments_:
!      STRING_A    Shall be of default 'CHARACTER' type.
!      STRING_B    Shall be of default 'CHARACTER' type.
  
  _Return value_:
!      Returns '.TRUE.' if 'STRING_A < STRING_B', and '.FALSE.' otherwise,
!      based on the ASCII ordering.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'LLT(STRING_A, 'CHARACTER'    'LOGICAL'      Fortran 77 and
!      STRING_B)'                                   later
  
  _See also_:
       *note LGE::, *note LGT::, *note LLE::
*************** _See also_:
*** 13046,13057 ****
  
  File: gfortran.info,  Node: LNBLNK,  Next: LOC,  Prev: LLT,  Up: Intrinsic Procedures
  
! 9.166 `LNBLNK' -- Index of the last non-blank character in a string
  ===================================================================
  
  _Description_:
       Returns the length of a character string, ignoring any trailing
!      blanks.  This is identical to the standard `LEN_TRIM' intrinsic,
       and is only included for backwards compatibility.
  
  _Standard_:
--- 12921,12932 ----
  
  File: gfortran.info,  Node: LNBLNK,  Next: LOC,  Prev: LLT,  Up: Intrinsic Procedures
  
! 9.166 'LNBLNK' -- Index of the last non-blank character in a string
  ===================================================================
  
  _Description_:
       Returns the length of a character string, ignoring any trailing
!      blanks.  This is identical to the standard 'LEN_TRIM' intrinsic,
       and is only included for backwards compatibility.
  
  _Standard_:
*************** _Class_:
*** 13061,13074 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LNBLNK(STRING)'
  
  _Arguments_:
!      STRING     Shall be a scalar of type `CHARACTER', with
!                 `INTENT(IN)'
  
  _Return value_:
!      The return value is of `INTEGER(kind=4)' type.
  
  _See also_:
       *note INDEX intrinsic::, *note LEN_TRIM::
--- 12936,12949 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LNBLNK(STRING)'
  
  _Arguments_:
!      STRING      Shall be a scalar of type 'CHARACTER', with
!                  'INTENT(IN)'
  
  _Return value_:
!      The return value is of 'INTEGER(kind=4)' type.
  
  _See also_:
       *note INDEX intrinsic::, *note LEN_TRIM::
*************** _See also_:
*** 13076,13086 ****
  
  File: gfortran.info,  Node: LOC,  Next: LOG,  Prev: LNBLNK,  Up: Intrinsic Procedures
  
! 9.167 `LOC' -- Returns the address of a variable
  ================================================
  
  _Description_:
!      `LOC(X)' returns the address of X as an integer.
  
  _Standard_:
       GNU extension
--- 12951,12961 ----
  
  File: gfortran.info,  Node: LOC,  Next: LOG,  Prev: LNBLNK,  Up: Intrinsic Procedures
  
! 9.167 'LOC' -- Returns the address of a variable
  ================================================
  
  _Description_:
!      'LOC(X)' returns the address of X as an integer.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 13089,13101 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = LOC(X)'
  
  _Arguments_:
!      X          Variable of any type.
  
  _Return value_:
!      The return value is of type `INTEGER', with a `KIND' corresponding
       to the size (in bytes) of a memory address on the target machine.
  
  _Example_:
--- 12964,12976 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = LOC(X)'
  
  _Arguments_:
!      X           Variable of any type.
  
  _Return value_:
!      The return value is of type 'INTEGER', with a 'KIND' corresponding
       to the size (in bytes) of a memory address on the target machine.
  
  _Example_:
*************** _Example_:
*** 13109,13119 ****
  
  File: gfortran.info,  Node: LOG,  Next: LOG10,  Prev: LOC,  Up: Intrinsic Procedures
  
! 9.168 `LOG' -- Natural logarithm function
  =========================================
  
  _Description_:
!      `LOG(X)' computes the natural logarithm of X, i.e. the logarithm
       to the base e.
  
  _Standard_:
--- 12984,12994 ----
  
  File: gfortran.info,  Node: LOG,  Next: LOG10,  Prev: LOC,  Up: Intrinsic Procedures
  
! 9.168 'LOG' -- Natural logarithm function
  =========================================
  
  _Description_:
!      'LOG(X)' computes the natural logarithm of X, i.e.  the logarithm
       to the base e.
  
  _Standard_:
*************** _Class_:
*** 13123,13136 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LOG(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value is of type `REAL' or `COMPLEX'.  The kind type
!      parameter is the same as X.  If X is `COMPLEX', the imaginary part
       \omega is in the range -\pi < \omega \leq \pi.
  
  _Example_:
--- 12998,13011 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LOG(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value is of type 'REAL' or 'COMPLEX'.  The kind type
!      parameter is the same as X.  If X is 'COMPLEX', the imaginary part
       \omega is in the range -\pi < \omega \leq \pi.
  
  _Example_:
*************** _Example_:
*** 13142,13165 ****
            end program test_log
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ALOG(X)'     `REAL(4) X'   `REAL(4)'     f95, gnu
!      `DLOG(X)'     `REAL(8) X'   `REAL(8)'     f95, gnu
!      `CLOG(X)'     `COMPLEX(4)   `COMPLEX(4)'  f95, gnu
!                    X'                          
!      `ZLOG(X)'     `COMPLEX(8)   `COMPLEX(8)'  f95, gnu
!                    X'                          
!      `CDLOG(X)'    `COMPLEX(8)   `COMPLEX(8)'  f95, gnu
!                    X'                          
  
  
  File: gfortran.info,  Node: LOG10,  Next: LOG_GAMMA,  Prev: LOG,  Up: Intrinsic Procedures
  
! 9.169 `LOG10' -- Base 10 logarithm function
  ===========================================
  
  _Description_:
!      `LOG10(X)' computes the base 10 logarithm of X.
  
  _Standard_:
       Fortran 77 and later
--- 13017,13040 ----
            end program test_log
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ALOG(X)'      'REAL(4) X'    'REAL(4)'      f95, gnu
!      'DLOG(X)'      'REAL(8) X'    'REAL(8)'      f95, gnu
!      'CLOG(X)'      'COMPLEX(4)    'COMPLEX(4)'   f95, gnu
!                     X'
!      'ZLOG(X)'      'COMPLEX(8)    'COMPLEX(8)'   f95, gnu
!                     X'
!      'CDLOG(X)'     'COMPLEX(8)    'COMPLEX(8)'   f95, gnu
!                     X'
  
  
  File: gfortran.info,  Node: LOG10,  Next: LOG_GAMMA,  Prev: LOG,  Up: Intrinsic Procedures
  
! 9.169 'LOG10' -- Base 10 logarithm function
  ===========================================
  
  _Description_:
!      'LOG10(X)' computes the base 10 logarithm of X.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 13168,13180 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LOG10(X)'
  
  _Arguments_:
!      X          The type shall be `REAL'.
  
  _Return value_:
!      The return value is of type `REAL' or `COMPLEX'.  The kind type
       parameter is the same as X.
  
  _Example_:
--- 13043,13055 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LOG10(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL'.
  
  _Return value_:
!      The return value is of type 'REAL' or 'COMPLEX'.  The kind type
       parameter is the same as X.
  
  _Example_:
*************** _Example_:
*** 13184,13203 ****
            end program test_log10
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `ALOG10(X)'   `REAL(4) X'   `REAL(4)'     Fortran 95 and
!                                                later
!      `DLOG10(X)'   `REAL(8) X'   `REAL(8)'     Fortran 95 and
!                                                later
  
  
  File: gfortran.info,  Node: LOG_GAMMA,  Next: LOGICAL,  Prev: LOG10,  Up: Intrinsic Procedures
  
! 9.170 `LOG_GAMMA' -- Logarithm of the Gamma function
  ====================================================
  
  _Description_:
!      `LOG_GAMMA(X)' computes the natural logarithm of the absolute value
       of the Gamma (\Gamma) function.
  
  _Standard_:
--- 13059,13078 ----
            end program test_log10
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'ALOG10(X)'    'REAL(4) X'    'REAL(4)'      Fortran 95 and
!                                                   later
!      'DLOG10(X)'    'REAL(8) X'    'REAL(8)'      Fortran 95 and
!                                                   later
  
  
  File: gfortran.info,  Node: LOG_GAMMA,  Next: LOGICAL,  Prev: LOG10,  Up: Intrinsic Procedures
  
! 9.170 'LOG_GAMMA' -- Logarithm of the Gamma function
  ====================================================
  
  _Description_:
!      'LOG_GAMMA(X)' computes the natural logarithm of the absolute value
       of the Gamma (\Gamma) function.
  
  _Standard_:
*************** _Class_:
*** 13207,13220 ****
       Elemental function
  
  _Syntax_:
!      `X = LOG_GAMMA(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL' and neither zero nor a
!                 negative integer.
  
  _Return value_:
!      The return value is of type `REAL' of the same kind as X.
  
  _Example_:
            program test_log_gamma
--- 13082,13095 ----
       Elemental function
  
  _Syntax_:
!      'X = LOG_GAMMA(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL' and neither zero nor a
!                  negative integer.
  
  _Return value_:
!      The return value is of type 'REAL' of the same kind as X.
  
  _Example_:
            program test_log_gamma
*************** _Example_:
*** 13223,13245 ****
            end program test_log_gamma
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `LGAMMA(X)'   `REAL(4) X'   `REAL(4)'     GNU Extension
!      `ALGAMA(X)'   `REAL(4) X'   `REAL(4)'     GNU Extension
!      `DLGAMA(X)'   `REAL(8) X'   `REAL(8)'     GNU Extension
  
  _See also_:
       Gamma function: *note GAMMA::
  
- 
  
  File: gfortran.info,  Node: LOGICAL,  Next: LONG,  Prev: LOG_GAMMA,  Up: Intrinsic Procedures
  
! 9.171 `LOGICAL' -- Convert to logical type
  ==========================================
  
  _Description_:
!      Converts one kind of `LOGICAL' variable to another.
  
  _Standard_:
       Fortran 95 and later
--- 13098,13119 ----
            end program test_log_gamma
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'LGAMMA(X)'    'REAL(4) X'    'REAL(4)'      GNU Extension
!      'ALGAMA(X)'    'REAL(4) X'    'REAL(4)'      GNU Extension
!      'DLGAMA(X)'    'REAL(8) X'    'REAL(8)'      GNU Extension
  
  _See also_:
       Gamma function: *note GAMMA::
  
  
  File: gfortran.info,  Node: LOGICAL,  Next: LONG,  Prev: LOG_GAMMA,  Up: Intrinsic Procedures
  
! 9.171 'LOGICAL' -- Convert to logical type
  ==========================================
  
  _Description_:
!      Converts one kind of 'LOGICAL' variable to another.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13248,13263 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LOGICAL(L [, KIND])'
  
  _Arguments_:
!      L          The type shall be `LOGICAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is a `LOGICAL' value equal to L, with a kind
       corresponding to KIND, or of the default logical kind if KIND is
       not given.
  
--- 13122,13137 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LOGICAL(L [, KIND])'
  
  _Arguments_:
!      L           The type shall be 'LOGICAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is a 'LOGICAL' value equal to L, with a kind
       corresponding to KIND, or of the default logical kind if KIND is
       not given.
  
*************** _See also_:
*** 13267,13280 ****
  
  File: gfortran.info,  Node: LONG,  Next: LSHIFT,  Prev: LOGICAL,  Up: Intrinsic Procedures
  
! 9.172 `LONG' -- Convert to integer type
  =======================================
  
  _Description_:
!      Convert to a `KIND=4' integer type, which is the same size as a C
!      `long' integer.  This is equivalent to the standard `INT'
!      intrinsic with an optional argument of `KIND=4', and is only
!      included for backwards compatibility.
  
  _Standard_:
       GNU extension
--- 13141,13154 ----
  
  File: gfortran.info,  Node: LONG,  Next: LSHIFT,  Prev: LOGICAL,  Up: Intrinsic Procedures
  
! 9.172 'LONG' -- Convert to integer type
  =======================================
  
  _Description_:
!      Convert to a 'KIND=4' integer type, which is the same size as a C
!      'long' integer.  This is equivalent to the standard 'INT' intrinsic
!      with an optional argument of 'KIND=4', and is only included for
!      backwards compatibility.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 13283,13296 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LONG(A)'
  
  _Arguments_:
!      A          Shall be of type `INTEGER', `REAL', or
!                 `COMPLEX'.
  
  _Return value_:
!      The return value is a `INTEGER(4)' variable.
  
  _See also_:
       *note INT::, *note INT2::, *note INT8::
--- 13157,13170 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LONG(A)'
  
  _Arguments_:
!      A           Shall be of type 'INTEGER', 'REAL', or
!                  'COMPLEX'.
  
  _Return value_:
!      The return value is a 'INTEGER(4)' variable.
  
  _See also_:
       *note INT::, *note INT2::, *note INT8::
*************** _See also_:
*** 13298,13315 ****
  
  File: gfortran.info,  Node: LSHIFT,  Next: LSTAT,  Prev: LONG,  Up: Intrinsic Procedures
  
! 9.173 `LSHIFT' -- Left shift bits
  =================================
  
  _Description_:
!      `LSHIFT' returns a value corresponding to I with all of the bits
       shifted left by SHIFT places.  If the absolute value of SHIFT is
!      greater than `BIT_SIZE(I)', the value is undefined.  Bits shifted
       out from the left end are lost; zeros are shifted in from the
       opposite end.
  
!      This function has been superseded by the `ISHFT' intrinsic, which
!      is standard in Fortran 95 and later, and the `SHIFTL' intrinsic,
       which is standard in Fortran 2008 and later.
  
  _Standard_:
--- 13172,13189 ----
  
  File: gfortran.info,  Node: LSHIFT,  Next: LSTAT,  Prev: LONG,  Up: Intrinsic Procedures
  
! 9.173 'LSHIFT' -- Left shift bits
  =================================
  
  _Description_:
!      'LSHIFT' returns a value corresponding to I with all of the bits
       shifted left by SHIFT places.  If the absolute value of SHIFT is
!      greater than 'BIT_SIZE(I)', the value is undefined.  Bits shifted
       out from the left end are lost; zeros are shifted in from the
       opposite end.
  
!      This function has been superseded by the 'ISHFT' intrinsic, which
!      is standard in Fortran 95 and later, and the 'SHIFTL' intrinsic,
       which is standard in Fortran 2008 and later.
  
  _Standard_:
*************** _Class_:
*** 13319,13350 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = LSHIFT(I, SHIFT)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFT::, *note ISHFTC::, *note RSHIFT::, *note SHIFTA::,
       *note SHIFTL::, *note SHIFTR::
  
- 
  
  File: gfortran.info,  Node: LSTAT,  Next: LTIME,  Prev: LSHIFT,  Up: Intrinsic Procedures
  
! 9.174 `LSTAT' -- Get file status
  ================================
  
  _Description_:
!      `LSTAT' is identical to *note STAT::, except that if path is a
       symbolic link, then the link itself is statted, not the file that
       it refers to.
  
!      The elements in `VALUES' are the same as described by *note STAT::.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 13193,13223 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = LSHIFT(I, SHIFT)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFT::, *note ISHFTC::, *note RSHIFT::, *note SHIFTA::,
       *note SHIFTL::, *note SHIFTR::
  
  
  File: gfortran.info,  Node: LSTAT,  Next: LTIME,  Prev: LSHIFT,  Up: Intrinsic Procedures
  
! 9.174 'LSTAT' -- Get file status
  ================================
  
  _Description_:
!      'LSTAT' is identical to *note STAT::, except that if path is a
       symbolic link, then the link itself is statted, not the file that
       it refers to.
  
!      The elements in 'VALUES' are the same as described by *note STAT::.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 13356,13371 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL LSTAT(NAME, VALUES [, STATUS])'
!      `STATUS = LSTAT(NAME, VALUES)'
  
  _Arguments_:
!      NAME       The type shall be `CHARACTER' of the default
!                 kind, a valid path within the file system.
!      VALUES     The type shall be `INTEGER(4), DIMENSION(13)'.
!      STATUS     (Optional) status flag of type `INTEGER(4)'.
!                 Returns 0 on success and a system specific
!                 error code otherwise.
  
  _Example_:
       See *note STAT:: for an example.
--- 13229,13244 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL LSTAT(NAME, VALUES [, STATUS])'
!      'STATUS = LSTAT(NAME, VALUES)'
  
  _Arguments_:
!      NAME        The type shall be 'CHARACTER' of the default
!                  kind, a valid path within the file system.
!      VALUES      The type shall be 'INTEGER(4), DIMENSION(13)'.
!      STATUS      (Optional) status flag of type 'INTEGER(4)'.
!                  Returns 0 on success and a system specific error
!                  code otherwise.
  
  _Example_:
       See *note STAT:: for an example.
*************** _See also_:
*** 13376,13388 ****
  
  File: gfortran.info,  Node: LTIME,  Next: MALLOC,  Prev: LSTAT,  Up: Intrinsic Procedures
  
! 9.175 `LTIME' -- Convert time to local time info
  ================================================
  
  _Description_:
!      Given a system time value TIME (as provided by the `TIME8'
       intrinsic), fills VALUES with values extracted from it appropriate
!      to the local time zone using `localtime(3)'.
  
  _Standard_:
       GNU extension
--- 13249,13261 ----
  
  File: gfortran.info,  Node: LTIME,  Next: MALLOC,  Prev: LSTAT,  Up: Intrinsic Procedures
  
! 9.175 'LTIME' -- Convert time to local time info
  ================================================
  
  _Description_:
!      Given a system time value TIME (as provided by the 'TIME8'
       intrinsic), fills VALUES with values extracted from it appropriate
!      to the local time zone using 'localtime(3)'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 13391,13423 ****
       Subroutine
  
  _Syntax_:
!      `CALL LTIME(TIME, VALUES)'
  
  _Arguments_:
!      TIME       An `INTEGER' scalar expression corresponding
!                 to a system time, with `INTENT(IN)'.
!      VALUES     A default `INTEGER' array with 9 elements,
!                 with `INTENT(OUT)'.
  
  _Return value_:
       The elements of VALUES are assigned as follows:
         1. Seconds after the minute, range 0-59 or 0-61 to allow for leap
            seconds
- 
         2. Minutes after the hour, range 0-59
- 
         3. Hours past midnight, range 0-23
- 
         4. Day of month, range 0-31
- 
         5. Number of months since January, range 0-12
- 
         6. Years since 1900
- 
         7. Number of days since Sunday, range 0-6
- 
         8. Days since January 1
- 
         9. Daylight savings indicator: positive if daylight savings is in
            effect, zero if not, and negative if the information is not
            available.
--- 13264,13288 ----
       Subroutine
  
  _Syntax_:
!      'CALL LTIME(TIME, VALUES)'
  
  _Arguments_:
!      TIME        An 'INTEGER' scalar expression corresponding to
!                  a system time, with 'INTENT(IN)'.
!      VALUES      A default 'INTEGER' array with 9 elements, with
!                  'INTENT(OUT)'.
  
  _Return value_:
       The elements of VALUES are assigned as follows:
         1. Seconds after the minute, range 0-59 or 0-61 to allow for leap
            seconds
         2. Minutes after the hour, range 0-59
         3. Hours past midnight, range 0-23
         4. Day of month, range 0-31
         5. Number of months since January, range 0-12
         6. Years since 1900
         7. Number of days since Sunday, range 0-6
         8. Days since January 1
         9. Daylight savings indicator: positive if daylight savings is in
            effect, zero if not, and negative if the information is not
            available.
*************** _Return value_:
*** 13425,13444 ****
  _See also_:
       *note CTIME::, *note GMTIME::, *note TIME::, *note TIME8::
  
- 
  
  File: gfortran.info,  Node: MALLOC,  Next: MASKL,  Prev: LTIME,  Up: Intrinsic Procedures
  
! 9.176 `MALLOC' -- Allocate dynamic memory
  =========================================
  
  _Description_:
!      `MALLOC(SIZE)' allocates SIZE bytes of dynamic memory and returns
!      the address of the allocated memory. The `MALLOC' intrinsic is an
       extension intended to be used with Cray pointers, and is provided
!      in GNU Fortran to allow the user to compile legacy code. For new
       code using Fortran 95 pointers, the memory allocation intrinsic is
!      `ALLOCATE'.
  
  _Standard_:
       GNU extension
--- 13290,13308 ----
  _See also_:
       *note CTIME::, *note GMTIME::, *note TIME::, *note TIME8::
  
  
  File: gfortran.info,  Node: MALLOC,  Next: MASKL,  Prev: LTIME,  Up: Intrinsic Procedures
  
! 9.176 'MALLOC' -- Allocate dynamic memory
  =========================================
  
  _Description_:
!      'MALLOC(SIZE)' allocates SIZE bytes of dynamic memory and returns
!      the address of the allocated memory.  The 'MALLOC' intrinsic is an
       extension intended to be used with Cray pointers, and is provided
!      in GNU Fortran to allow the user to compile legacy code.  For new
       code using Fortran 95 pointers, the memory allocation intrinsic is
!      'ALLOCATE'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 13447,13464 ****
       Function
  
  _Syntax_:
!      `PTR = MALLOC(SIZE)'
  
  _Arguments_:
!      SIZE       The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER(K)', with K such that
!      variables of type `INTEGER(K)' have the same size as C pointers
!      (`sizeof(void *)').
  
  _Example_:
!      The following example demonstrates the use of `MALLOC' and `FREE'
       with Cray pointers.
  
            program test_malloc
--- 13311,13328 ----
       Function
  
  _Syntax_:
!      'PTR = MALLOC(SIZE)'
  
  _Arguments_:
!      SIZE        The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER(K)', with K such that
!      variables of type 'INTEGER(K)' have the same size as C pointers
!      ('sizeof(void *)').
  
  _Example_:
!      The following example demonstrates the use of 'MALLOC' and 'FREE'
       with Cray pointers.
  
            program test_malloc
*************** _See also_:
*** 13485,13495 ****
  
  File: gfortran.info,  Node: MASKL,  Next: MASKR,  Prev: MALLOC,  Up: Intrinsic Procedures
  
! 9.177 `MASKL' -- Left justified mask
  ====================================
  
  _Description_:
!      `MASKL(I[, KIND])' has its leftmost I bits set to 1, and the
       remaining bits set to 0.
  
  _Standard_:
--- 13349,13359 ----
  
  File: gfortran.info,  Node: MASKL,  Next: MASKR,  Prev: MALLOC,  Up: Intrinsic Procedures
  
! 9.177 'MASKL' -- Left justified mask
  ====================================
  
  _Description_:
!      'MASKL(I[, KIND])' has its leftmost I bits set to 1, and the
       remaining bits set to 0.
  
  _Standard_:
*************** _Class_:
*** 13499,13513 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MASKL(I[, KIND])'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
!      KIND       Shall be a scalar constant expression of type
!                 `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER'. If KIND is present, it
       specifies the kind value of the return type; otherwise, it is of
       the default integer kind.
  
--- 13363,13377 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MASKL(I[, KIND])'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
!      KIND        Shall be a scalar constant expression of type
!                  'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER'.  If KIND is present, it
       specifies the kind value of the return type; otherwise, it is of
       the default integer kind.
  
*************** _See also_:
*** 13517,13527 ****
  
  File: gfortran.info,  Node: MASKR,  Next: MATMUL,  Prev: MASKL,  Up: Intrinsic Procedures
  
! 9.178 `MASKR' -- Right justified mask
  =====================================
  
  _Description_:
!      `MASKL(I[, KIND])' has its rightmost I bits set to 1, and the
       remaining bits set to 0.
  
  _Standard_:
--- 13381,13391 ----
  
  File: gfortran.info,  Node: MASKR,  Next: MATMUL,  Prev: MASKL,  Up: Intrinsic Procedures
  
! 9.178 'MASKR' -- Right justified mask
  =====================================
  
  _Description_:
!      'MASKL(I[, KIND])' has its rightmost I bits set to 1, and the
       remaining bits set to 0.
  
  _Standard_:
*************** _Class_:
*** 13531,13545 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MASKR(I[, KIND])'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
!      KIND       Shall be a scalar constant expression of type
!                 `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER'. If KIND is present, it
       specifies the kind value of the return type; otherwise, it is of
       the default integer kind.
  
--- 13395,13409 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MASKR(I[, KIND])'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
!      KIND        Shall be a scalar constant expression of type
!                  'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER'.  If KIND is present, it
       specifies the kind value of the return type; otherwise, it is of
       the default integer kind.
  
*************** _See also_:
*** 13549,13555 ****
  
  File: gfortran.info,  Node: MATMUL,  Next: MAX,  Prev: MASKR,  Up: Intrinsic Procedures
  
! 9.179 `MATMUL' -- matrix multiplication
  =======================================
  
  _Description_:
--- 13413,13419 ----
  
  File: gfortran.info,  Node: MATMUL,  Next: MAX,  Prev: MASKR,  Up: Intrinsic Procedures
  
! 9.179 'MATMUL' -- matrix multiplication
  =======================================
  
  _Description_:
*************** _Class_:
*** 13562,13590 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = MATMUL(MATRIX_A, MATRIX_B)'
  
  _Arguments_:
!      MATRIX_A   An array of `INTEGER', `REAL', `COMPLEX', or
!                 `LOGICAL' type, with a rank of one or two.
!      MATRIX_B   An array of `INTEGER', `REAL', or `COMPLEX'
!                 type if MATRIX_A is of a numeric type;
!                 otherwise, an array of `LOGICAL' type. The
!                 rank shall be one or two, and the first (or
!                 only) dimension of MATRIX_B shall be equal to
!                 the last (or only) dimension of MATRIX_A.
  
  _Return value_:
       The matrix product of MATRIX_A and MATRIX_B.  The type and kind of
       the result follow the usual type and kind promotion rules, as for
!      the `*' or `.AND.' operators.
  
  _See also_:
  
  
  File: gfortran.info,  Node: MAX,  Next: MAXEXPONENT,  Prev: MATMUL,  Up: Intrinsic Procedures
  
! 9.180 `MAX' -- Maximum value of an argument list
  ================================================
  
  _Description_:
--- 13426,13454 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = MATMUL(MATRIX_A, MATRIX_B)'
  
  _Arguments_:
!      MATRIX_A    An array of 'INTEGER', 'REAL', 'COMPLEX', or
!                  'LOGICAL' type, with a rank of one or two.
!      MATRIX_B    An array of 'INTEGER', 'REAL', or 'COMPLEX' type
!                  if MATRIX_A is of a numeric type; otherwise, an
!                  array of 'LOGICAL' type.  The rank shall be one
!                  or two, and the first (or only) dimension of
!                  MATRIX_B shall be equal to the last (or only)
!                  dimension of MATRIX_A.
  
  _Return value_:
       The matrix product of MATRIX_A and MATRIX_B.  The type and kind of
       the result follow the usual type and kind promotion rules, as for
!      the '*' or '.AND.' operators.
  
  _See also_:
  
  
  File: gfortran.info,  Node: MAX,  Next: MAXEXPONENT,  Prev: MATMUL,  Up: Intrinsic Procedures
  
! 9.180 'MAX' -- Maximum value of an argument list
  ================================================
  
  _Description_:
*************** _Class_:
*** 13597,13640 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MAX(A1, A2 [, A3 [, ...]])'
  
  _Arguments_:
!      A1         The type shall be `INTEGER' or `REAL'.
!      A2, A3,    An expression of the same type and kind as A1.
!      ...        (As a GNU extension, arguments of different
!                 kinds are permitted.)
  
  _Return value_:
       The return value corresponds to the maximum value among the
       arguments, and has the same type and kind as the first argument.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `MAX0(A1)'    `INTEGER(4)   `INTEGER(4)'  Fortran 77 and
!                    A1'                         later
!      `AMAX0(A1)'   `INTEGER(4)   `REAL(MAX(X))'Fortran 77 and
!                    A1'                         later
!      `MAX1(A1)'    `REAL A1'     `INT(MAX(X))' Fortran 77 and
!                                                later
!      `AMAX1(A1)'   `REAL(4) A1'  `REAL(4)'     Fortran 77 and
!                                                later
!      `DMAX1(A1)'   `REAL(8) A1'  `REAL(8)'     Fortran 77 and
!                                                later
  
  _See also_:
       *note MAXLOC:: *note MAXVAL::, *note MIN::
  
- 
  
  File: gfortran.info,  Node: MAXEXPONENT,  Next: MAXLOC,  Prev: MAX,  Up: Intrinsic Procedures
  
! 9.181 `MAXEXPONENT' -- Maximum exponent of a real kind
  ======================================================
  
  _Description_:
!      `MAXEXPONENT(X)' returns the maximum exponent in the model of the
!      type of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 13461,13503 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MAX(A1, A2 [, A3 [, ...]])'
  
  _Arguments_:
!      A1          The type shall be 'INTEGER' or 'REAL'.
!      A2, A3,     An expression of the same type and kind as A1.
!      ...         (As a GNU extension, arguments of different
!                  kinds are permitted.)
  
  _Return value_:
       The return value corresponds to the maximum value among the
       arguments, and has the same type and kind as the first argument.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'MAX0(A1)'     'INTEGER(4)    'INTEGER(4)'   Fortran 77 and
!                     A1'                           later
!      'AMAX0(A1)'    'INTEGER(4)    'REAL(MAX(X))' Fortran 77 and
!                     A1'                           later
!      'MAX1(A1)'     'REAL A1'      'INT(MAX(X))'  Fortran 77 and
!                                                   later
!      'AMAX1(A1)'    'REAL(4) A1'   'REAL(4)'      Fortran 77 and
!                                                   later
!      'DMAX1(A1)'    'REAL(8) A1'   'REAL(8)'      Fortran 77 and
!                                                   later
  
  _See also_:
       *note MAXLOC:: *note MAXVAL::, *note MIN::
  
  
  File: gfortran.info,  Node: MAXEXPONENT,  Next: MAXLOC,  Prev: MAX,  Up: Intrinsic Procedures
  
! 9.181 'MAXEXPONENT' -- Maximum exponent of a real kind
  ======================================================
  
  _Description_:
!      'MAXEXPONENT(X)' returns the maximum exponent in the model of the
!      type of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13643,13655 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = MAXEXPONENT(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _Example_:
--- 13506,13518 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = MAXEXPONENT(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _Example_:
*************** _Example_:
*** 13664,13670 ****
  
  File: gfortran.info,  Node: MAXLOC,  Next: MAXVAL,  Prev: MAXEXPONENT,  Up: Intrinsic Procedures
  
! 9.182 `MAXLOC' -- Location of the maximum value within an array
  ===============================================================
  
  _Description_:
--- 13527,13533 ----
  
  File: gfortran.info,  Node: MAXLOC,  Next: MAXVAL,  Prev: MAXEXPONENT,  Up: Intrinsic Procedures
  
! 9.182 'MAXLOC' -- Location of the maximum value within an array
  ===============================================================
  
  _Description_:
*************** _Description_:
*** 13672,13684 ****
       maximum value, or, if the DIM argument is supplied, determines the
       locations of the maximum element along each row of the array in the
       DIM direction.  If MASK is present, only the elements for which
!      MASK is `.TRUE.' are considered.  If more than one element in the
       array has the maximum value, the location returned is that of the
       first such element in array element order.  If the array has zero
!      size, or all of the elements of MASK are `.FALSE.', then the
!      result is an array of zeroes.  Similarly, if DIM is supplied and
!      all of the elements of MASK along a given row are zero, the result
!      value for that row is zero.
  
  _Standard_:
       Fortran 95 and later
--- 13535,13547 ----
       maximum value, or, if the DIM argument is supplied, determines the
       locations of the maximum element along each row of the array in the
       DIM direction.  If MASK is present, only the elements for which
!      MASK is '.TRUE.' are considered.  If more than one element in the
       array has the maximum value, the location returned is that of the
       first such element in array element order.  If the array has zero
!      size, or all of the elements of MASK are '.FALSE.', then the result
!      is an array of zeroes.  Similarly, if DIM is supplied and all of
!      the elements of MASK along a given row are zero, the result value
!      for that row is zero.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13687,13703 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = MAXLOC(ARRAY, DIM [, MASK])'
!      `RESULT = MAXLOC(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER' or `REAL'.
!      DIM        (Optional) Shall be a scalar of type
!                 `INTEGER', with a value between one and the
!                 rank of ARRAY, inclusive.  It may not be an
!                 optional dummy argument.
!      MASK       Shall be an array of type `LOGICAL', and
!                 conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, the result is a rank-one array with a length
--- 13550,13566 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = MAXLOC(ARRAY, DIM [, MASK])'
!      'RESULT = MAXLOC(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER' or 'REAL'.
!      DIM         (Optional) Shall be a scalar of type 'INTEGER',
!                  with a value between one and the rank of ARRAY,
!                  inclusive.  It may not be an optional dummy
!                  argument.
!      MASK        Shall be an array of type 'LOGICAL', and
!                  conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, the result is a rank-one array with a length
*************** _Return value_:
*** 13705,13730 ****
       array with a rank one less than the rank of ARRAY, and a size
       corresponding to the size of ARRAY with the DIM dimension removed.
       If DIM is present and ARRAY has a rank of one, the result is a
!      scalar.  In all cases, the result is of default `INTEGER' type.
  
  _See also_:
       *note MAX::, *note MAXVAL::
  
- 
  
  File: gfortran.info,  Node: MAXVAL,  Next: MCLOCK,  Prev: MAXLOC,  Up: Intrinsic Procedures
  
! 9.183 `MAXVAL' -- Maximum value of an array
  ===========================================
  
  _Description_:
!      Determines the maximum value of the elements in an array value,
!      or, if the DIM argument is supplied, determines the maximum value
!      along each row of the array in the DIM direction.  If MASK is
!      present, only the elements for which MASK is `.TRUE.' are
!      considered.  If the array has zero size, or all of the elements of
!      MASK are `.FALSE.', then the result is `-HUGE(ARRAY)' if ARRAY is
!      numeric, or a string of nulls if ARRAY is of character type.
  
  _Standard_:
       Fortran 95 and later
--- 13568,13592 ----
       array with a rank one less than the rank of ARRAY, and a size
       corresponding to the size of ARRAY with the DIM dimension removed.
       If DIM is present and ARRAY has a rank of one, the result is a
!      scalar.  In all cases, the result is of default 'INTEGER' type.
  
  _See also_:
       *note MAX::, *note MAXVAL::
  
  
  File: gfortran.info,  Node: MAXVAL,  Next: MCLOCK,  Prev: MAXLOC,  Up: Intrinsic Procedures
  
! 9.183 'MAXVAL' -- Maximum value of an array
  ===========================================
  
  _Description_:
!      Determines the maximum value of the elements in an array value, or,
!      if the DIM argument is supplied, determines the maximum value along
!      each row of the array in the DIM direction.  If MASK is present,
!      only the elements for which MASK is '.TRUE.' are considered.  If
!      the array has zero size, or all of the elements of MASK are
!      '.FALSE.', then the result is '-HUGE(ARRAY)' if ARRAY is numeric,
!      or a string of nulls if ARRAY is of character type.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13733,13749 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = MAXVAL(ARRAY, DIM [, MASK])'
!      `RESULT = MAXVAL(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER' or `REAL'.
!      DIM        (Optional) Shall be a scalar of type
!                 `INTEGER', with a value between one and the
!                 rank of ARRAY, inclusive.  It may not be an
!                 optional dummy argument.
!      MASK       Shall be an array of type `LOGICAL', and
!                 conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, or if ARRAY has a rank of one, the result is a
--- 13595,13611 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = MAXVAL(ARRAY, DIM [, MASK])'
!      'RESULT = MAXVAL(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER' or 'REAL'.
!      DIM         (Optional) Shall be a scalar of type 'INTEGER',
!                  with a value between one and the rank of ARRAY,
!                  inclusive.  It may not be an optional dummy
!                  argument.
!      MASK        Shall be an array of type 'LOGICAL', and
!                  conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, or if ARRAY has a rank of one, the result is a
*************** _See also_:
*** 13758,13772 ****
  
  File: gfortran.info,  Node: MCLOCK,  Next: MCLOCK8,  Prev: MAXVAL,  Up: Intrinsic Procedures
  
! 9.184 `MCLOCK' -- Time function
  ===============================
  
  _Description_:
       Returns the number of clock ticks since the start of the process,
!      based on the function `clock(3)' in the C standard library.
  
       This intrinsic is not fully portable, such as to systems with
!      32-bit `INTEGER' types but supporting times wider than 32 bits.
       Therefore, the values returned by this intrinsic might be, or
       become, negative, or numerically less than previous values, during
       a single run of the compiled program.
--- 13620,13634 ----
  
  File: gfortran.info,  Node: MCLOCK,  Next: MCLOCK8,  Prev: MAXVAL,  Up: Intrinsic Procedures
  
! 9.184 'MCLOCK' -- Time function
  ===============================
  
  _Description_:
       Returns the number of clock ticks since the start of the process,
!      based on the function 'clock(3)' in the C standard library.
  
       This intrinsic is not fully portable, such as to systems with
!      32-bit 'INTEGER' types but supporting times wider than 32 bits.
       Therefore, the values returned by this intrinsic might be, or
       become, negative, or numerically less than previous values, during
       a single run of the compiled program.
*************** _Class_:
*** 13778,13813 ****
       Function
  
  _Syntax_:
!      `RESULT = MCLOCK()'
  
  _Return value_:
!      The return value is a scalar of type `INTEGER(4)', equal to the
!      number of clock ticks since the start of the process, or `-1' if
!      the system does not support `clock(3)'.
  
  _See also_:
!      *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK::,
!      *note TIME::
! 
  
  
  File: gfortran.info,  Node: MCLOCK8,  Next: MERGE,  Prev: MCLOCK,  Up: Intrinsic Procedures
  
! 9.185 `MCLOCK8' -- Time function (64-bit)
  =========================================
  
  _Description_:
       Returns the number of clock ticks since the start of the process,
!      based on the function `clock(3)' in the C standard library.
  
       _Warning:_ this intrinsic does not increase the range of the timing
!      values over that returned by `clock(3)'. On a system with a 32-bit
!      `clock(3)', `MCLOCK8' will return a 32-bit value, even though it
!      is converted to a 64-bit `INTEGER(8)' value. That means overflows
!      of the 32-bit value can still occur. Therefore, the values
!      returned by this intrinsic might be or become negative or
!      numerically less than previous values during a single run of the
!      compiled program.
  
  _Standard_:
       GNU extension
--- 13640,13673 ----
       Function
  
  _Syntax_:
!      'RESULT = MCLOCK()'
  
  _Return value_:
!      The return value is a scalar of type 'INTEGER(4)', equal to the
!      number of clock ticks since the start of the process, or '-1' if
!      the system does not support 'clock(3)'.
  
  _See also_:
!      *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK::, *note
!      TIME::
  
  
  File: gfortran.info,  Node: MCLOCK8,  Next: MERGE,  Prev: MCLOCK,  Up: Intrinsic Procedures
  
! 9.185 'MCLOCK8' -- Time function (64-bit)
  =========================================
  
  _Description_:
       Returns the number of clock ticks since the start of the process,
!      based on the function 'clock(3)' in the C standard library.
  
       _Warning:_ this intrinsic does not increase the range of the timing
!      values over that returned by 'clock(3)'.  On a system with a 32-bit
!      'clock(3)', 'MCLOCK8' will return a 32-bit value, even though it is
!      converted to a 64-bit 'INTEGER(8)' value.  That means overflows of
!      the 32-bit value can still occur.  Therefore, the values returned
!      by this intrinsic might be or become negative or numerically less
!      than previous values during a single run of the compiled program.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 13816,13843 ****
       Function
  
  _Syntax_:
!      `RESULT = MCLOCK8()'
  
  _Return value_:
!      The return value is a scalar of type `INTEGER(8)', equal to the
!      number of clock ticks since the start of the process, or `-1' if
!      the system does not support `clock(3)'.
  
  _See also_:
!      *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK::,
!      *note TIME8::
! 
  
  
  File: gfortran.info,  Node: MERGE,  Next: MERGE_BITS,  Prev: MCLOCK8,  Up: Intrinsic Procedures
  
! 9.186 `MERGE' -- Merge variables
  ================================
  
  _Description_:
       Select values from two arrays according to a logical mask.  The
!      result is equal to TSOURCE if MASK is `.TRUE.', or equal to
!      FSOURCE if it is `.FALSE.'.
  
  _Standard_:
       Fortran 95 and later
--- 13676,13702 ----
       Function
  
  _Syntax_:
!      'RESULT = MCLOCK8()'
  
  _Return value_:
!      The return value is a scalar of type 'INTEGER(8)', equal to the
!      number of clock ticks since the start of the process, or '-1' if
!      the system does not support 'clock(3)'.
  
  _See also_:
!      *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK::, *note
!      TIME8::
  
  
  File: gfortran.info,  Node: MERGE,  Next: MERGE_BITS,  Prev: MCLOCK8,  Up: Intrinsic Procedures
  
! 9.186 'MERGE' -- Merge variables
  ================================
  
  _Description_:
       Select values from two arrays according to a logical mask.  The
!      result is equal to TSOURCE if MASK is '.TRUE.', or equal to FSOURCE
!      if it is '.FALSE.'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13846,13874 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MERGE(TSOURCE, FSOURCE, MASK)'
  
  _Arguments_:
!      TSOURCE    May be of any type.
!      FSOURCE    Shall be of the same type and type parameters
!                 as TSOURCE.
!      MASK       Shall be of type `LOGICAL'.
  
  _Return value_:
       The result is of the same type and type parameters as TSOURCE.
  
- 
  
  File: gfortran.info,  Node: MERGE_BITS,  Next: MIN,  Prev: MERGE,  Up: Intrinsic Procedures
  
! 9.187 `MERGE_BITS' -- Merge of bits under mask
  ==============================================
  
  _Description_:
!      `MERGE_BITS(I, J, MASK)' merges the bits of I and J as determined
       by the mask.  The i-th bit of the result is equal to the i-th bit
!      of I if the i-th bit of MASK is 1; it is equal to the i-th bit of
!      J otherwise.
  
  _Standard_:
       Fortran 2008 and later
--- 13705,13732 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MERGE(TSOURCE, FSOURCE, MASK)'
  
  _Arguments_:
!      TSOURCE     May be of any type.
!      FSOURCE     Shall be of the same type and type parameters as
!                  TSOURCE.
!      MASK        Shall be of type 'LOGICAL'.
  
  _Return value_:
       The result is of the same type and type parameters as TSOURCE.
  
  
  File: gfortran.info,  Node: MERGE_BITS,  Next: MIN,  Prev: MERGE,  Up: Intrinsic Procedures
  
! 9.187 'MERGE_BITS' -- Merge of bits under mask
  ==============================================
  
  _Description_:
!      'MERGE_BITS(I, J, MASK)' merges the bits of I and J as determined
       by the mask.  The i-th bit of the result is equal to the i-th bit
!      of I if the i-th bit of MASK is 1; it is equal to the i-th bit of J
!      otherwise.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 13877,13899 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MERGE_BITS(I, J, MASK)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
!      J          Shall be of type `INTEGER' and of the same
!                 kind as I.
!      MASK       Shall be of type `INTEGER' and of the same
!                 kind as I.
  
  _Return value_:
       The result is of the same type and kind as I.
  
- 
  
  File: gfortran.info,  Node: MIN,  Next: MINEXPONENT,  Prev: MERGE_BITS,  Up: Intrinsic Procedures
  
! 9.188 `MIN' -- Minimum value of an argument list
  ================================================
  
  _Description_:
--- 13735,13756 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MERGE_BITS(I, J, MASK)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
!      J           Shall be of type 'INTEGER' and of the same kind
!                  as I.
!      MASK        Shall be of type 'INTEGER' and of the same kind
!                  as I.
  
  _Return value_:
       The result is of the same type and kind as I.
  
  
  File: gfortran.info,  Node: MIN,  Next: MINEXPONENT,  Prev: MERGE_BITS,  Up: Intrinsic Procedures
  
! 9.188 'MIN' -- Minimum value of an argument list
  ================================================
  
  _Description_:
*************** _Class_:
*** 13906,13935 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MIN(A1, A2 [, A3, ...])'
  
  _Arguments_:
!      A1         The type shall be `INTEGER' or `REAL'.
!      A2, A3,    An expression of the same type and kind as A1.
!      ...        (As a GNU extension, arguments of different
!                 kinds are permitted.)
  
  _Return value_:
       The return value corresponds to the maximum value among the
       arguments, and has the same type and kind as the first argument.
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `MIN0(A1)'    `INTEGER(4)   `INTEGER(4)'  Fortran 77 and
!                    A1'                         later
!      `AMIN0(A1)'   `INTEGER(4)   `REAL(4)'     Fortran 77 and
!                    A1'                         later
!      `MIN1(A1)'    `REAL A1'     `INTEGER(4)'  Fortran 77 and
!                                                later
!      `AMIN1(A1)'   `REAL(4) A1'  `REAL(4)'     Fortran 77 and
!                                                later
!      `DMIN1(A1)'   `REAL(8) A1'  `REAL(8)'     Fortran 77 and
!                                                later
  
  _See also_:
       *note MAX::, *note MINLOC::, *note MINVAL::
--- 13763,13792 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MIN(A1, A2 [, A3, ...])'
  
  _Arguments_:
!      A1          The type shall be 'INTEGER' or 'REAL'.
!      A2, A3,     An expression of the same type and kind as A1.
!      ...         (As a GNU extension, arguments of different
!                  kinds are permitted.)
  
  _Return value_:
       The return value corresponds to the maximum value among the
       arguments, and has the same type and kind as the first argument.
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'MIN0(A1)'     'INTEGER(4)    'INTEGER(4)'   Fortran 77 and
!                     A1'                           later
!      'AMIN0(A1)'    'INTEGER(4)    'REAL(4)'      Fortran 77 and
!                     A1'                           later
!      'MIN1(A1)'     'REAL A1'      'INTEGER(4)'   Fortran 77 and
!                                                   later
!      'AMIN1(A1)'    'REAL(4) A1'   'REAL(4)'      Fortran 77 and
!                                                   later
!      'DMIN1(A1)'    'REAL(8) A1'   'REAL(8)'      Fortran 77 and
!                                                   later
  
  _See also_:
       *note MAX::, *note MINLOC::, *note MINVAL::
*************** _See also_:
*** 13937,13948 ****
  
  File: gfortran.info,  Node: MINEXPONENT,  Next: MINLOC,  Prev: MIN,  Up: Intrinsic Procedures
  
! 9.189 `MINEXPONENT' -- Minimum exponent of a real kind
  ======================================================
  
  _Description_:
!      `MINEXPONENT(X)' returns the minimum exponent in the model of the
!      type of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 13794,13805 ----
  
  File: gfortran.info,  Node: MINEXPONENT,  Next: MINLOC,  Prev: MIN,  Up: Intrinsic Procedures
  
! 9.189 'MINEXPONENT' -- Minimum exponent of a real kind
  ======================================================
  
  _Description_:
!      'MINEXPONENT(X)' returns the minimum exponent in the model of the
!      type of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13951,13972 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = MINEXPONENT(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _Example_:
!      See `MAXEXPONENT' for an example.
  
  
  File: gfortran.info,  Node: MINLOC,  Next: MINVAL,  Prev: MINEXPONENT,  Up: Intrinsic Procedures
  
! 9.190 `MINLOC' -- Location of the minimum value within an array
  ===============================================================
  
  _Description_:
--- 13808,13829 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = MINEXPONENT(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _Example_:
!      See 'MAXEXPONENT' for an example.
  
  
  File: gfortran.info,  Node: MINLOC,  Next: MINVAL,  Prev: MINEXPONENT,  Up: Intrinsic Procedures
  
! 9.190 'MINLOC' -- Location of the minimum value within an array
  ===============================================================
  
  _Description_:
*************** _Description_:
*** 13974,13986 ****
       minimum value, or, if the DIM argument is supplied, determines the
       locations of the minimum element along each row of the array in the
       DIM direction.  If MASK is present, only the elements for which
!      MASK is `.TRUE.' are considered.  If more than one element in the
       array has the minimum value, the location returned is that of the
       first such element in array element order.  If the array has zero
!      size, or all of the elements of MASK are `.FALSE.', then the
!      result is an array of zeroes.  Similarly, if DIM is supplied and
!      all of the elements of MASK along a given row are zero, the result
!      value for that row is zero.
  
  _Standard_:
       Fortran 95 and later
--- 13831,13843 ----
       minimum value, or, if the DIM argument is supplied, determines the
       locations of the minimum element along each row of the array in the
       DIM direction.  If MASK is present, only the elements for which
!      MASK is '.TRUE.' are considered.  If more than one element in the
       array has the minimum value, the location returned is that of the
       first such element in array element order.  If the array has zero
!      size, or all of the elements of MASK are '.FALSE.', then the result
!      is an array of zeroes.  Similarly, if DIM is supplied and all of
!      the elements of MASK along a given row are zero, the result value
!      for that row is zero.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 13989,14005 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = MINLOC(ARRAY, DIM [, MASK])'
!      `RESULT = MINLOC(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER' or `REAL'.
!      DIM        (Optional) Shall be a scalar of type
!                 `INTEGER', with a value between one and the
!                 rank of ARRAY, inclusive.  It may not be an
!                 optional dummy argument.
!      MASK       Shall be an array of type `LOGICAL', and
!                 conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, the result is a rank-one array with a length
--- 13846,13862 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = MINLOC(ARRAY, DIM [, MASK])'
!      'RESULT = MINLOC(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER' or 'REAL'.
!      DIM         (Optional) Shall be a scalar of type 'INTEGER',
!                  with a value between one and the rank of ARRAY,
!                  inclusive.  It may not be an optional dummy
!                  argument.
!      MASK        Shall be an array of type 'LOGICAL', and
!                  conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, the result is a rank-one array with a length
*************** _Return value_:
*** 14007,14033 ****
       array with a rank one less than the rank of ARRAY, and a size
       corresponding to the size of ARRAY with the DIM dimension removed.
       If DIM is present and ARRAY has a rank of one, the result is a
!      scalar.  In all cases, the result is of default `INTEGER' type.
  
  _See also_:
       *note MIN::, *note MINVAL::
  
- 
  
  File: gfortran.info,  Node: MINVAL,  Next: MOD,  Prev: MINLOC,  Up: Intrinsic Procedures
  
! 9.191 `MINVAL' -- Minimum value of an array
  ===========================================
  
  _Description_:
!      Determines the minimum value of the elements in an array value,
!      or, if the DIM argument is supplied, determines the minimum value
!      along each row of the array in the DIM direction.  If MASK is
!      present, only the elements for which MASK is `.TRUE.' are
!      considered.  If the array has zero size, or all of the elements of
!      MASK are `.FALSE.', then the result is `HUGE(ARRAY)' if ARRAY is
!      numeric, or a string of `CHAR(255)' characters if ARRAY is of
!      character type.
  
  _Standard_:
       Fortran 95 and later
--- 13864,13888 ----
       array with a rank one less than the rank of ARRAY, and a size
       corresponding to the size of ARRAY with the DIM dimension removed.
       If DIM is present and ARRAY has a rank of one, the result is a
!      scalar.  In all cases, the result is of default 'INTEGER' type.
  
  _See also_:
       *note MIN::, *note MINVAL::
  
  
  File: gfortran.info,  Node: MINVAL,  Next: MOD,  Prev: MINLOC,  Up: Intrinsic Procedures
  
! 9.191 'MINVAL' -- Minimum value of an array
  ===========================================
  
  _Description_:
!      Determines the minimum value of the elements in an array value, or,
!      if the DIM argument is supplied, determines the minimum value along
!      each row of the array in the DIM direction.  If MASK is present,
!      only the elements for which MASK is '.TRUE.' are considered.  If
!      the array has zero size, or all of the elements of MASK are
!      '.FALSE.', then the result is 'HUGE(ARRAY)' if ARRAY is numeric, or
!      a string of 'CHAR(255)' characters if ARRAY is of character type.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14036,14052 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = MINVAL(ARRAY, DIM [, MASK])'
!      `RESULT = MINVAL(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER' or `REAL'.
!      DIM        (Optional) Shall be a scalar of type
!                 `INTEGER', with a value between one and the
!                 rank of ARRAY, inclusive.  It may not be an
!                 optional dummy argument.
!      MASK       Shall be an array of type `LOGICAL', and
!                 conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, or if ARRAY has a rank of one, the result is a
--- 13891,13907 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = MINVAL(ARRAY, DIM [, MASK])'
!      'RESULT = MINVAL(ARRAY [, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER' or 'REAL'.
!      DIM         (Optional) Shall be a scalar of type 'INTEGER',
!                  with a value between one and the rank of ARRAY,
!                  inclusive.  It may not be an optional dummy
!                  argument.
!      MASK        Shall be an array of type 'LOGICAL', and
!                  conformable with ARRAY.
  
  _Return value_:
       If DIM is absent, or if ARRAY has a rank of one, the result is a
*************** _Return value_:
*** 14058,14072 ****
  _See also_:
       *note MIN::, *note MINLOC::
  
- 
  
  File: gfortran.info,  Node: MOD,  Next: MODULO,  Prev: MINVAL,  Up: Intrinsic Procedures
  
! 9.192 `MOD' -- Remainder function
  =================================
  
  _Description_:
!      `MOD(A,P)' computes the remainder of the division of A by P.
  
  _Standard_:
       Fortran 77 and later
--- 13913,13926 ----
  _See also_:
       *note MIN::, *note MINLOC::
  
  
  File: gfortran.info,  Node: MOD,  Next: MODULO,  Prev: MINVAL,  Up: Intrinsic Procedures
  
! 9.192 'MOD' -- Remainder function
  =================================
  
  _Description_:
!      'MOD(A,P)' computes the remainder of the division of A by P.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 14075,14092 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MOD(A, P)'
  
  _Arguments_:
!      A          Shall be a scalar of type `INTEGER' or `REAL'.
!      P          Shall be a scalar of the same type and kind as
!                 A and not equal to zero.
  
  _Return value_:
!      The return value is the result of `A - (INT(A/P) * P)'. The type
       and kind of the return value is the same as that of the arguments.
!      The returned value has the same sign as A and a magnitude less
!      than the magnitude of P.
  
  _Example_:
            program test_mod
--- 13929,13946 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MOD(A, P)'
  
  _Arguments_:
!      A           Shall be a scalar of type 'INTEGER' or 'REAL'.
!      P           Shall be a scalar of the same type and kind as A
!                  and not equal to zero.
  
  _Return value_:
!      The return value is the result of 'A - (INT(A/P) * P)'.  The type
       and kind of the return value is the same as that of the arguments.
!      The returned value has the same sign as A and a magnitude less than
!      the magnitude of P.
  
  _Example_:
            program test_mod
*************** _Example_:
*** 14107,14132 ****
            end program test_mod
  
  _Specific names_:
!      Name          Arguments     Return type   Standard
!      `MOD(A,P)'    `INTEGER      `INTEGER'     Fortran 95 and
!                    A,P'                        later
!      `AMOD(A,P)'   `REAL(4)      `REAL(4)'     Fortran 95 and
!                    A,P'                        later
!      `DMOD(A,P)'   `REAL(8)      `REAL(8)'     Fortran 95 and
!                    A,P'                        later
  
  _See also_:
       *note MODULO::
  
- 
  
  File: gfortran.info,  Node: MODULO,  Next: MOVE_ALLOC,  Prev: MOD,  Up: Intrinsic Procedures
  
! 9.193 `MODULO' -- Modulo function
  =================================
  
  _Description_:
!      `MODULO(A,P)' computes the A modulo P.
  
  _Standard_:
       Fortran 95 and later
--- 13961,13985 ----
            end program test_mod
  
  _Specific names_:
!      Name           Arguments      Return type    Standard
!      'MOD(A,P)'     'INTEGER       'INTEGER'      Fortran 95 and
!                     A,P'                          later
!      'AMOD(A,P)'    'REAL(4)       'REAL(4)'      Fortran 95 and
!                     A,P'                          later
!      'DMOD(A,P)'    'REAL(8)       'REAL(8)'      Fortran 95 and
!                     A,P'                          later
  
  _See also_:
       *note MODULO::
  
  
  File: gfortran.info,  Node: MODULO,  Next: MOVE_ALLOC,  Prev: MOD,  Up: Intrinsic Procedures
  
! 9.193 'MODULO' -- Modulo function
  =================================
  
  _Description_:
!      'MODULO(A,P)' computes the A modulo P.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14135,14155 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = MODULO(A, P)'
  
  _Arguments_:
!      A          Shall be a scalar of type `INTEGER' or `REAL'.
!      P          Shall be a scalar of the same type and kind as
!                 A.  It shall not be zero.
  
  _Return value_:
       The type and kind of the result are those of the arguments.
!     If A and P are of type `INTEGER':
!           `MODULO(A,P)' has the value R such that `A=Q*P+R', where Q is
            an integer and R is between 0 (inclusive) and P (exclusive).
! 
!     If A and P are of type `REAL':
!           `MODULO(A,P)' has the value of `A - FLOOR (A / P) * P'.
       The returned value has the same sign as P and a magnitude less than
       the magnitude of P.
  
--- 13988,14007 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = MODULO(A, P)'
  
  _Arguments_:
!      A           Shall be a scalar of type 'INTEGER' or 'REAL'.
!      P           Shall be a scalar of the same type and kind as
!                  A.  It shall not be zero.
  
  _Return value_:
       The type and kind of the result are those of the arguments.
!      If A and P are of type 'INTEGER':
!           'MODULO(A,P)' has the value R such that 'A=Q*P+R', where Q is
            an integer and R is between 0 (inclusive) and P (exclusive).
!      If A and P are of type 'REAL':
!           'MODULO(A,P)' has the value of 'A - FLOOR (A / P) * P'.
       The returned value has the same sign as P and a magnitude less than
       the magnitude of P.
  
*************** _Example_:
*** 14168,14182 ****
  _See also_:
       *note MOD::
  
- 
  
  File: gfortran.info,  Node: MOVE_ALLOC,  Next: MVBITS,  Prev: MODULO,  Up: Intrinsic Procedures
  
! 9.194 `MOVE_ALLOC' -- Move allocation from one object to another
  ================================================================
  
  _Description_:
!      `MOVE_ALLOC(FROM, TO)' moves the allocation from FROM to TO.  FROM
       will become deallocated in the process.
  
  _Standard_:
--- 14020,14033 ----
  _See also_:
       *note MOD::
  
  
  File: gfortran.info,  Node: MOVE_ALLOC,  Next: MVBITS,  Prev: MODULO,  Up: Intrinsic Procedures
  
! 9.194 'MOVE_ALLOC' -- Move allocation from one object to another
  ================================================================
  
  _Description_:
!      'MOVE_ALLOC(FROM, TO)' moves the allocation from FROM to TO.  FROM
       will become deallocated in the process.
  
  _Standard_:
*************** _Class_:
*** 14186,14198 ****
       Pure subroutine
  
  _Syntax_:
!      `CALL MOVE_ALLOC(FROM, TO)'
  
  _Arguments_:
!      FROM       `ALLOCATABLE', `INTENT(INOUT)', may be of any
!                 type and kind.
!      TO         `ALLOCATABLE', `INTENT(OUT)', shall be of the
!                 same type, kind and rank as FROM.
  
  _Return value_:
       None
--- 14037,14049 ----
       Pure subroutine
  
  _Syntax_:
!      'CALL MOVE_ALLOC(FROM, TO)'
  
  _Arguments_:
!      FROM        'ALLOCATABLE', 'INTENT(INOUT)', may be of any
!                  type and kind.
!      TO          'ALLOCATABLE', 'INTENT(OUT)', shall be of the
!                  same type, kind and rank as FROM.
  
  _Return value_:
       None
*************** _Example_:
*** 14211,14225 ****
  
  File: gfortran.info,  Node: MVBITS,  Next: NEAREST,  Prev: MOVE_ALLOC,  Up: Intrinsic Procedures
  
! 9.195 `MVBITS' -- Move bits from one integer to another
  =======================================================
  
  _Description_:
!      Moves LEN bits from positions FROMPOS through `FROMPOS+LEN-1' of
!      FROM to positions TOPOS through `TOPOS+LEN-1' of TO. The portion
       of argument TO not affected by the movement of bits is unchanged.
!      The values of `FROMPOS+LEN-1' and `TOPOS+LEN-1' must be less than
!      `BIT_SIZE(FROM)'.
  
  _Standard_:
       Fortran 95 and later
--- 14062,14076 ----
  
  File: gfortran.info,  Node: MVBITS,  Next: NEAREST,  Prev: MOVE_ALLOC,  Up: Intrinsic Procedures
  
! 9.195 'MVBITS' -- Move bits from one integer to another
  =======================================================
  
  _Description_:
!      Moves LEN bits from positions FROMPOS through 'FROMPOS+LEN-1' of
!      FROM to positions TOPOS through 'TOPOS+LEN-1' of TO.  The portion
       of argument TO not affected by the movement of bits is unchanged.
!      The values of 'FROMPOS+LEN-1' and 'TOPOS+LEN-1' must be less than
!      'BIT_SIZE(FROM)'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14228,14242 ****
       Elemental subroutine
  
  _Syntax_:
!      `CALL MVBITS(FROM, FROMPOS, LEN, TO, TOPOS)'
  
  _Arguments_:
!      FROM       The type shall be `INTEGER'.
!      FROMPOS    The type shall be `INTEGER'.
!      LEN        The type shall be `INTEGER'.
!      TO         The type shall be `INTEGER', of the same kind
!                 as FROM.
!      TOPOS      The type shall be `INTEGER'.
  
  _See also_:
       *note IBCLR::, *note IBSET::, *note IBITS::, *note IAND::, *note
--- 14079,14093 ----
       Elemental subroutine
  
  _Syntax_:
!      'CALL MVBITS(FROM, FROMPOS, LEN, TO, TOPOS)'
  
  _Arguments_:
!      FROM        The type shall be 'INTEGER'.
!      FROMPOS     The type shall be 'INTEGER'.
!      LEN         The type shall be 'INTEGER'.
!      TO          The type shall be 'INTEGER', of the same kind as
!                  FROM.
!      TOPOS       The type shall be 'INTEGER'.
  
  _See also_:
       *note IBCLR::, *note IBSET::, *note IBITS::, *note IAND::, *note
*************** _See also_:
*** 14245,14256 ****
  
  File: gfortran.info,  Node: NEAREST,  Next: NEW_LINE,  Prev: MVBITS,  Up: Intrinsic Procedures
  
! 9.196 `NEAREST' -- Nearest representable number
  ===============================================
  
  _Description_:
!      `NEAREST(X, S)' returns the processor-representable number nearest
!      to `X' in the direction indicated by the sign of `S'.
  
  _Standard_:
       Fortran 95 and later
--- 14096,14107 ----
  
  File: gfortran.info,  Node: NEAREST,  Next: NEW_LINE,  Prev: MVBITS,  Up: Intrinsic Procedures
  
! 9.196 'NEAREST' -- Nearest representable number
  ===============================================
  
  _Description_:
!      'NEAREST(X, S)' returns the processor-representable number nearest
!      to 'X' in the direction indicated by the sign of 'S'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14259,14275 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = NEAREST(X, S)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
!      S          Shall be of type `REAL' and not equal to zero.
  
  _Return value_:
!      The return value is of the same type as `X'. If `S' is positive,
!      `NEAREST' returns the processor-representable number greater than
!      `X' and nearest to it. If `S' is negative, `NEAREST' returns the
!      processor-representable number smaller than `X' and nearest to it.
  
  _Example_:
            program test_nearest
--- 14110,14126 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = NEAREST(X, S)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
!      S           Shall be of type 'REAL' and not equal to zero.
  
  _Return value_:
!      The return value is of the same type as 'X'.  If 'S' is positive,
!      'NEAREST' returns the processor-representable number greater than
!      'X' and nearest to it.  If 'S' is negative, 'NEAREST' returns the
!      processor-representable number smaller than 'X' and nearest to it.
  
  _Example_:
            program test_nearest
*************** _Example_:
*** 14282,14292 ****
  
  File: gfortran.info,  Node: NEW_LINE,  Next: NINT,  Prev: NEAREST,  Up: Intrinsic Procedures
  
! 9.197 `NEW_LINE' -- New line character
  ======================================
  
  _Description_:
!      `NEW_LINE(C)' returns the new-line character.
  
  _Standard_:
       Fortran 2003 and later
--- 14133,14143 ----
  
  File: gfortran.info,  Node: NEW_LINE,  Next: NINT,  Prev: NEAREST,  Up: Intrinsic Procedures
  
! 9.197 'NEW_LINE' -- New line character
  ======================================
  
  _Description_:
!      'NEW_LINE(C)' returns the new-line character.
  
  _Standard_:
       Fortran 2003 and later
*************** _Class_:
*** 14295,14305 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = NEW_LINE(C)'
  
  _Arguments_:
!      C          The argument shall be a scalar or array of the
!                 type `CHARACTER'.
  
  _Return value_:
       Returns a CHARACTER scalar of length one with the new-line
--- 14146,14156 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = NEW_LINE(C)'
  
  _Arguments_:
!      C           The argument shall be a scalar or array of the
!                  type 'CHARACTER'.
  
  _Return value_:
       Returns a CHARACTER scalar of length one with the new-line
*************** _Example_:
*** 14314,14324 ****
  
  File: gfortran.info,  Node: NINT,  Next: NORM2,  Prev: NEW_LINE,  Up: Intrinsic Procedures
  
! 9.198 `NINT' -- Nearest whole number
  ====================================
  
  _Description_:
!      `NINT(A)' rounds its argument to the nearest whole number.
  
  _Standard_:
       Fortran 77 and later, with KIND argument Fortran 90 and later
--- 14165,14175 ----
  
  File: gfortran.info,  Node: NINT,  Next: NORM2,  Prev: NEW_LINE,  Up: Intrinsic Procedures
  
! 9.198 'NINT' -- Nearest whole number
  ====================================
  
  _Description_:
!      'NINT(A)' rounds its argument to the nearest whole number.
  
  _Standard_:
       Fortran 77 and later, with KIND argument Fortran 90 and later
*************** _Class_:
*** 14327,14344 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = NINT(A [, KIND])'
  
  _Arguments_:
!      A          The type of the argument shall be `REAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
       Returns A with the fractional portion of its magnitude eliminated
       by rounding to the nearest whole number and with its sign
!      preserved, converted to an `INTEGER' of the default kind.
  
  _Example_:
            program test_nint
--- 14178,14195 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = NINT(A [, KIND])'
  
  _Arguments_:
!      A           The type of the argument shall be 'REAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
       Returns A with the fractional portion of its magnitude eliminated
       by rounding to the nearest whole number and with its sign
!      preserved, converted to an 'INTEGER' of the default kind.
  
  _Example_:
            program test_nint
*************** _Example_:
*** 14350,14369 ****
            end program test_nint
  
  _Specific names_:
!      Name          Argument      Return Type   Standard
!      `NINT(A)'     `REAL(4) A'   `INTEGER'     Fortran 95 and
!                                                later
!      `IDNINT(A)'   `REAL(8) A'   `INTEGER'     Fortran 95 and
!                                                later
  
  _See also_:
       *note CEILING::, *note FLOOR::
  
- 
  
  File: gfortran.info,  Node: NORM2,  Next: NOT,  Prev: NINT,  Up: Intrinsic Procedures
  
! 9.199 `NORM2' -- Euclidean vector norms
  =======================================
  
  _Description_:
--- 14201,14219 ----
            end program test_nint
  
  _Specific names_:
!      Name           Argument       Return Type    Standard
!      'NINT(A)'      'REAL(4) A'    'INTEGER'      Fortran 95 and
!                                                   later
!      'IDNINT(A)'    'REAL(8) A'    'INTEGER'      Fortran 95 and
!                                                   later
  
  _See also_:
       *note CEILING::, *note FLOOR::
  
  
  File: gfortran.info,  Node: NORM2,  Next: NOT,  Prev: NINT,  Up: Intrinsic Procedures
  
! 9.199 'NORM2' -- Euclidean vector norms
  =======================================
  
  _Description_:
*************** _Class_:
*** 14377,14397 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = NORM2(ARRAY[, DIM])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `REAL'
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the square root of the sum of all
!      elements in ARRAY squared  is returned. Otherwise, an array of
!      rank n-1, where n equals the rank of ARRAY, and a shape similar to
!      that of ARRAY with dimension DIM dropped is returned.
  
  _Example_:
            PROGRAM test_sum
--- 14227,14247 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = NORM2(ARRAY[, DIM])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'REAL'
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the square root of the sum of all
!      elements in ARRAY squared is returned.  Otherwise, an array of rank
!      n-1, where n equals the rank of ARRAY, and a shape similar to that
!      of ARRAY with dimension DIM dropped is returned.
  
  _Example_:
            PROGRAM test_sum
*************** _Example_:
*** 14402,14412 ****
  
  File: gfortran.info,  Node: NOT,  Next: NULL,  Prev: NORM2,  Up: Intrinsic Procedures
  
! 9.200 `NOT' -- Logical negation
  ===============================
  
  _Description_:
!      `NOT' returns the bitwise Boolean inverse of I.
  
  _Standard_:
       Fortran 95 and later
--- 14252,14262 ----
  
  File: gfortran.info,  Node: NOT,  Next: NULL,  Prev: NORM2,  Up: Intrinsic Procedures
  
! 9.200 'NOT' -- Logical negation
  ===============================
  
  _Description_:
!      'NOT' returns the bitwise Boolean inverse of I.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14415,14437 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = NOT(I)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
  
  _Return value_:
!      The return type is `INTEGER', of the same kind as the argument.
  
  _See also_:
       *note IAND::, *note IEOR::, *note IOR::, *note IBITS::, *note
       IBSET::, *note IBCLR::
  
- 
  
  File: gfortran.info,  Node: NULL,  Next: NUM_IMAGES,  Prev: NOT,  Up: Intrinsic Procedures
  
! 9.201 `NULL' -- Function that returns an disassociated pointer
  ==============================================================
  
  _Description_:
--- 14265,14286 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = NOT(I)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
  
  _Return value_:
!      The return type is 'INTEGER', of the same kind as the argument.
  
  _See also_:
       *note IAND::, *note IEOR::, *note IOR::, *note IBITS::, *note
       IBSET::, *note IBCLR::
  
  
  File: gfortran.info,  Node: NULL,  Next: NUM_IMAGES,  Prev: NOT,  Up: Intrinsic Procedures
  
! 9.201 'NULL' -- Function that returns an disassociated pointer
  ==============================================================
  
  _Description_:
*************** _Description_:
*** 14440,14446 ****
       If MOLD is present, a disassociated pointer of the same type is
       returned, otherwise the type is determined by context.
  
!      In Fortran 95, MOLD is optional. Please note that Fortran 2003
       includes cases where it is required.
  
  _Standard_:
--- 14289,14295 ----
       If MOLD is present, a disassociated pointer of the same type is
       returned, otherwise the type is determined by context.
  
!      In Fortran 95, MOLD is optional.  Please note that Fortran 2003
       includes cases where it is required.
  
  _Standard_:
*************** _Class_:
*** 14450,14460 ****
       Transformational function
  
  _Syntax_:
!      `PTR => NULL([MOLD])'
  
  _Arguments_:
!      MOLD       (Optional) shall be a pointer of any
!                 association status and of any type.
  
  _Return value_:
       A disassociated pointer.
--- 14299,14309 ----
       Transformational function
  
  _Syntax_:
!      'PTR => NULL([MOLD])'
  
  _Arguments_:
!      MOLD        (Optional) shall be a pointer of any association
!                  status and of any type.
  
  _Return value_:
       A disassociated pointer.
*************** _See also_:
*** 14468,14504 ****
  
  File: gfortran.info,  Node: NUM_IMAGES,  Next: OR,  Prev: NULL,  Up: Intrinsic Procedures
  
! 9.202 `NUM_IMAGES' -- Function that returns the number of images
  ================================================================
  
  _Description_:
       Returns the number of images.
  
  _Standard_:
!      Fortran 2008 and later. With DISTANCE or FAILED argument,
       Technical Specification (TS) 18508 or later
  
  _Class_:
       Transformational function
  
  _Syntax_:
!      `RESULT = NUM_IMAGES(DISTANCE, FAILED)'
  
  _Arguments_:
!      DISTANCE   (optional, intent(in)) Nonnegative scalar
!                 integer
!      FAILED     (optional, intent(in)) Scalar logical
!                 expression
  
  _Return value_:
       Scalar default-kind integer.  If DISTANCE is not present or has
!      value 0, the number of images in the current team is returned. For
       values smaller or equal distance to the initial team, it returns
       the number of images index on the ancestor team which has a
!      distance of DISTANCE from the invoking team. If DISTANCE is larger
       than the distance to the initial team, the number of images of the
!      initial team is returned. If FAILED is not present the total
!      number of images is returned; if it has the value `.TRUE.', the
       number of failed images is returned, otherwise, the number of
       images which do have not the failed status.
  
--- 14317,14352 ----
  
  File: gfortran.info,  Node: NUM_IMAGES,  Next: OR,  Prev: NULL,  Up: Intrinsic Procedures
  
! 9.202 'NUM_IMAGES' -- Function that returns the number of images
  ================================================================
  
  _Description_:
       Returns the number of images.
  
  _Standard_:
!      Fortran 2008 and later.  With DISTANCE or FAILED argument,
       Technical Specification (TS) 18508 or later
  
  _Class_:
       Transformational function
  
  _Syntax_:
!      'RESULT = NUM_IMAGES(DISTANCE, FAILED)'
  
  _Arguments_:
!      DISTANCE    (optional, intent(in)) Nonnegative scalar
!                  integer
!      FAILED      (optional, intent(in)) Scalar logical expression
  
  _Return value_:
       Scalar default-kind integer.  If DISTANCE is not present or has
!      value 0, the number of images in the current team is returned.  For
       values smaller or equal distance to the initial team, it returns
       the number of images index on the ancestor team which has a
!      distance of DISTANCE from the invoking team.  If DISTANCE is larger
       than the distance to the initial team, the number of images of the
!      initial team is returned.  If FAILED is not present the total
!      number of images is returned; if it has the value '.TRUE.', the
       number of failed images is returned, otherwise, the number of
       images which do have not the failed status.
  
*************** _See also_:
*** 14519,14529 ****
  
  File: gfortran.info,  Node: OR,  Next: PACK,  Prev: NUM_IMAGES,  Up: Intrinsic Procedures
  
! 9.203 `OR' -- Bitwise logical OR
  ================================
  
  _Description_:
!      Bitwise logical `OR'.
  
       This intrinsic routine is provided for backwards compatibility with
       GNU Fortran 77.  For integer arguments, programmers should consider
--- 14367,14377 ----
  
  File: gfortran.info,  Node: OR,  Next: PACK,  Prev: NUM_IMAGES,  Up: Intrinsic Procedures
  
! 9.203 'OR' -- Bitwise logical OR
  ================================
  
  _Description_:
!      Bitwise logical 'OR'.
  
       This intrinsic routine is provided for backwards compatibility with
       GNU Fortran 77.  For integer arguments, programmers should consider
*************** _Class_:
*** 14537,14554 ****
       Function
  
  _Syntax_:
!      `RESULT = OR(I, J)'
  
  _Arguments_:
!      I          The type shall be either a scalar `INTEGER'
!                 type or a scalar `LOGICAL' type.
!      J          The type shall be the same as the type of J.
  
  _Return value_:
!      The return type is either a scalar `INTEGER' or a scalar
!      `LOGICAL'.  If the kind type parameters differ, then the smaller
!      kind type is implicitly converted to larger kind, and the return
!      has the larger kind.
  
  _Example_:
            PROGRAM test_or
--- 14385,14402 ----
       Function
  
  _Syntax_:
!      'RESULT = OR(I, J)'
  
  _Arguments_:
!      I           The type shall be either a scalar 'INTEGER' type
!                  or a scalar 'LOGICAL' type.
!      J           The type shall be the same as the type of J.
  
  _Return value_:
!      The return type is either a scalar 'INTEGER' or a scalar 'LOGICAL'.
!      If the kind type parameters differ, then the smaller kind type is
!      implicitly converted to larger kind, and the return has the larger
!      kind.
  
  _Example_:
            PROGRAM test_or
*************** _See also_:
*** 14566,14579 ****
  
  File: gfortran.info,  Node: PACK,  Next: PARITY,  Prev: OR,  Up: Intrinsic Procedures
  
! 9.204 `PACK' -- Pack an array into an array of rank one
  =======================================================
  
  _Description_:
       Stores the elements of ARRAY in an array of rank one.
  
       The beginning of the resulting array is made up of elements whose
!      MASK equals `TRUE'. Afterwards, positions are filled with elements
       taken from VECTOR.
  
  _Standard_:
--- 14414,14427 ----
  
  File: gfortran.info,  Node: PACK,  Next: PARITY,  Prev: OR,  Up: Intrinsic Procedures
  
! 9.204 'PACK' -- Pack an array into an array of rank one
  =======================================================
  
  _Description_:
       Stores the elements of ARRAY in an array of rank one.
  
       The beginning of the resulting array is made up of elements whose
!      MASK equals 'TRUE'.  Afterwards, positions are filled with elements
       taken from VECTOR.
  
  _Standard_:
*************** _Class_:
*** 14583,14607 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = PACK(ARRAY, MASK[,VECTOR])'
  
  _Arguments_:
!      ARRAY      Shall be an array of any type.
!      MASK       Shall be an array of type `LOGICAL' and of the
!                 same size as ARRAY. Alternatively, it may be a
!                 `LOGICAL' scalar.
!      VECTOR     (Optional) shall be an array of the same type
!                 as ARRAY and of rank one. If present, the
!                 number of elements in VECTOR shall be equal to
!                 or greater than the number of true elements in
!                 MASK. If MASK is scalar, the number of
!                 elements in VECTOR shall be equal to or
!                 greater than the number of elements in ARRAY.
  
  _Return value_:
       The result is an array of rank one and the same type as that of
       ARRAY.  If VECTOR is present, the result size is that of VECTOR,
!      the number of `TRUE' values in MASK otherwise.
  
  _Example_:
       Gathering nonzero elements from an array:
--- 14431,14455 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = PACK(ARRAY, MASK[,VECTOR])'
  
  _Arguments_:
!      ARRAY       Shall be an array of any type.
!      MASK        Shall be an array of type 'LOGICAL' and of the
!                  same size as ARRAY.  Alternatively, it may be a
!                  'LOGICAL' scalar.
!      VECTOR      (Optional) shall be an array of the same type as
!                  ARRAY and of rank one.  If present, the number
!                  of elements in VECTOR shall be equal to or
!                  greater than the number of true elements in
!                  MASK.  If MASK is scalar, the number of elements
!                  in VECTOR shall be equal to or greater than the
!                  number of elements in ARRAY.
  
  _Return value_:
       The result is an array of rank one and the same type as that of
       ARRAY.  If VECTOR is present, the result size is that of VECTOR,
!      the number of 'TRUE' values in MASK otherwise.
  
  _Example_:
       Gathering nonzero elements from an array:
*************** _See also_:
*** 14625,14635 ****
  
  File: gfortran.info,  Node: PARITY,  Next: PERROR,  Prev: PACK,  Up: Intrinsic Procedures
  
! 9.205 `PARITY' -- Reduction with exclusive OR
  =============================================
  
  _Description_:
!      Calculates the parity, i.e. the reduction using `.XOR.', of MASK
       along dimension DIM.
  
  _Standard_:
--- 14473,14483 ----
  
  File: gfortran.info,  Node: PARITY,  Next: PERROR,  Prev: PACK,  Up: Intrinsic Procedures
  
! 9.205 'PARITY' -- Reduction with exclusive OR
  =============================================
  
  _Description_:
!      Calculates the parity, i.e.  the reduction using '.XOR.', of MASK
       along dimension DIM.
  
  _Standard_:
*************** _Class_:
*** 14639,14657 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = PARITY(MASK[, DIM])'
  
  _Arguments_:
!      LOGICAL    Shall be an array of type `LOGICAL'
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of MASK.
  
  _Return value_:
       The result is of the same type as MASK.
  
       If DIM is absent, a scalar with the parity of all elements in MASK
!      is returned, i.e. true if an odd number of elements is `.true.'
       and false otherwise.  If DIM is present, an array of rank n-1,
       where n equals the rank of ARRAY, and a shape similar to that of
       MASK with dimension DIM dropped is returned.
--- 14487,14505 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = PARITY(MASK[, DIM])'
  
  _Arguments_:
!      LOGICAL     Shall be an array of type 'LOGICAL'
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of MASK.
  
  _Return value_:
       The result is of the same type as MASK.
  
       If DIM is absent, a scalar with the parity of all elements in MASK
!      is returned, i.e.  true if an odd number of elements is '.true.'
       and false otherwise.  If DIM is present, an array of rank n-1,
       where n equals the rank of ARRAY, and a shape similar to that of
       MASK with dimension DIM dropped is returned.
*************** _Example_:
*** 14665,14677 ****
  
  File: gfortran.info,  Node: PERROR,  Next: POPCNT,  Prev: PARITY,  Up: Intrinsic Procedures
  
! 9.206 `PERROR' -- Print system error message
  ============================================
  
  _Description_:
!      Prints (on the C `stderr' stream) a newline-terminated error
!      message corresponding to the last system error. This is prefixed by
!      STRING, a colon and a space. See `perror(3)'.
  
  _Standard_:
       GNU extension
--- 14513,14525 ----
  
  File: gfortran.info,  Node: PERROR,  Next: POPCNT,  Prev: PARITY,  Up: Intrinsic Procedures
  
! 9.206 'PERROR' -- Print system error message
  ============================================
  
  _Description_:
!      Prints (on the C 'stderr' stream) a newline-terminated error
!      message corresponding to the last system error.  This is prefixed
!      by STRING, a colon and a space.  See 'perror(3)'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 14680,14690 ****
       Subroutine
  
  _Syntax_:
!      `CALL PERROR(STRING)'
  
  _Arguments_:
!      STRING     A scalar of type `CHARACTER' and of the
!                 default kind.
  
  _See also_:
       *note IERRNO::
--- 14528,14538 ----
       Subroutine
  
  _Syntax_:
!      'CALL PERROR(STRING)'
  
  _Arguments_:
!      STRING      A scalar of type 'CHARACTER' and of the default
!                  kind.
  
  _See also_:
       *note IERRNO::
*************** _See also_:
*** 14692,14703 ****
  
  File: gfortran.info,  Node: POPCNT,  Next: POPPAR,  Prev: PERROR,  Up: Intrinsic Procedures
  
! 9.207 `POPCNT' -- Number of bits set
  ====================================
  
  _Description_:
!      `POPCNT(I)' returns the number of bits set ('1' bits) in the binary
!      representation of `I'.
  
  _Standard_:
       Fortran 2008 and later
--- 14540,14551 ----
  
  File: gfortran.info,  Node: POPCNT,  Next: POPPAR,  Prev: PERROR,  Up: Intrinsic Procedures
  
! 9.207 'POPCNT' -- Number of bits set
  ====================================
  
  _Description_:
!      'POPCNT(I)' returns the number of bits set ('1' bits) in the binary
!      representation of 'I'.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 14706,14718 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = POPCNT(I)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _See also_:
--- 14554,14566 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = POPCNT(I)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _See also_:
*************** _Example_:
*** 14728,14740 ****
  
  File: gfortran.info,  Node: POPPAR,  Next: PRECISION,  Prev: POPCNT,  Up: Intrinsic Procedures
  
! 9.208 `POPPAR' -- Parity of the number of bits set
  ==================================================
  
  _Description_:
!      `POPPAR(I)' returns parity of the integer `I', i.e. the parity of
       the number of bits set ('1' bits) in the binary representation of
!      `I'. It is equal to 0 if `I' has an even number of bits set, and 1
       for an odd number of '1' bits.
  
  _Standard_:
--- 14576,14588 ----
  
  File: gfortran.info,  Node: POPPAR,  Next: PRECISION,  Prev: POPCNT,  Up: Intrinsic Procedures
  
! 9.208 'POPPAR' -- Parity of the number of bits set
  ==================================================
  
  _Description_:
!      'POPPAR(I)' returns parity of the integer 'I', i.e.  the parity of
       the number of bits set ('1' bits) in the binary representation of
!      'I'.  It is equal to 0 if 'I' has an even number of bits set, and 1
       for an odd number of '1' bits.
  
  _Standard_:
*************** _Class_:
*** 14744,14756 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = POPPAR(I)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _See also_:
--- 14592,14604 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = POPPAR(I)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _See also_:
*************** _Example_:
*** 14766,14777 ****
  
  File: gfortran.info,  Node: PRECISION,  Next: PRESENT,  Prev: POPPAR,  Up: Intrinsic Procedures
  
! 9.209 `PRECISION' -- Decimal precision of a real kind
  =====================================================
  
  _Description_:
!      `PRECISION(X)' returns the decimal precision in the model of the
!      type of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 14614,14625 ----
  
  File: gfortran.info,  Node: PRECISION,  Next: PRESENT,  Prev: POPPAR,  Up: Intrinsic Procedures
  
! 9.209 'PRECISION' -- Decimal precision of a real kind
  =====================================================
  
  _Description_:
!      'PRECISION(X)' returns the decimal precision in the model of the
!      type of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14780,14792 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = PRECISION(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _See also_:
--- 14628,14640 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = PRECISION(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _See also_:
*************** _Example_:
*** 14804,14810 ****
  
  File: gfortran.info,  Node: PRESENT,  Next: PRODUCT,  Prev: PRECISION,  Up: Intrinsic Procedures
  
! 9.210 `PRESENT' -- Determine whether an optional dummy argument is specified
  ============================================================================
  
  _Description_:
--- 14652,14658 ----
  
  File: gfortran.info,  Node: PRESENT,  Next: PRODUCT,  Prev: PRECISION,  Up: Intrinsic Procedures
  
! 9.210 'PRESENT' -- Determine whether an optional dummy argument is specified
  ============================================================================
  
  _Description_:
*************** _Class_:
*** 14817,14834 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = PRESENT(A)'
  
  _Arguments_:
!      A          May be of any type and may be a pointer,
!                 scalar or array value, or a dummy procedure.
!                 It shall be the name of an optional dummy
!                 argument accessible within the current
!                 subroutine or function.
  
  _Return value_:
!      Returns either `TRUE' if the optional argument A is present, or
!      `FALSE' otherwise.
  
  _Example_:
            PROGRAM test_present
--- 14665,14682 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = PRESENT(A)'
  
  _Arguments_:
!      A           May be of any type and may be a pointer, scalar
!                  or array value, or a dummy procedure.  It shall
!                  be the name of an optional dummy argument
!                  accessible within the current subroutine or
!                  function.
  
  _Return value_:
!      Returns either 'TRUE' if the optional argument A is present, or
!      'FALSE' otherwise.
  
  _Example_:
            PROGRAM test_present
*************** _Example_:
*** 14843,14854 ****
  
  File: gfortran.info,  Node: PRODUCT,  Next: RADIX,  Prev: PRESENT,  Up: Intrinsic Procedures
  
! 9.211 `PRODUCT' -- Product of array elements
  ============================================
  
  _Description_:
       Multiplies the elements of ARRAY along dimension DIM if the
!      corresponding element in MASK is `TRUE'.
  
  _Standard_:
       Fortran 95 and later
--- 14691,14702 ----
  
  File: gfortran.info,  Node: PRODUCT,  Next: RADIX,  Prev: PRESENT,  Up: Intrinsic Procedures
  
! 9.211 'PRODUCT' -- Product of array elements
  ============================================
  
  _Description_:
       Multiplies the elements of ARRAY along dimension DIM if the
!      corresponding element in MASK is 'TRUE'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14857,14880 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = PRODUCT(ARRAY[, MASK])'
!      `RESULT = PRODUCT(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER', `REAL' or
!                 `COMPLEX'.
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of ARRAY.
!      MASK       (Optional) shall be of type `LOGICAL' and
!                 either be a scalar or an array of the same
!                 shape as ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the product of all elements in
!      ARRAY is returned. Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
--- 14705,14728 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = PRODUCT(ARRAY[, MASK])'
!      'RESULT = PRODUCT(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER', 'REAL' or
!                  'COMPLEX'.
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of ARRAY.
!      MASK        (Optional) shall be of type 'LOGICAL' and either
!                  be a scalar or an array of the same shape as
!                  ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
       If DIM is absent, a scalar with the product of all elements in
!      ARRAY is returned.  Otherwise, an array of rank n-1, where n equals
       the rank of ARRAY, and a shape similar to that of ARRAY with
       dimension DIM dropped is returned.
  
*************** _See also_:
*** 14891,14901 ****
  
  File: gfortran.info,  Node: RADIX,  Next: RAN,  Prev: PRODUCT,  Up: Intrinsic Procedures
  
! 9.212 `RADIX' -- Base of a model number
  =======================================
  
  _Description_:
!      `RADIX(X)' returns the base of the model representing the entity X.
  
  _Standard_:
       Fortran 95 and later
--- 14739,14749 ----
  
  File: gfortran.info,  Node: RADIX,  Next: RAN,  Prev: PRODUCT,  Up: Intrinsic Procedures
  
! 9.212 'RADIX' -- Base of a model number
  =======================================
  
  _Description_:
!      'RADIX(X)' returns the base of the model representing the entity X.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 14904,14916 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = RADIX(X)'
  
  _Arguments_:
!      X          Shall be of type `INTEGER' or `REAL'
  
  _Return value_:
!      The return value is a scalar of type `INTEGER' and of the default
       integer kind.
  
  _See also_:
--- 14752,14764 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = RADIX(X)'
  
  _Arguments_:
!      X           Shall be of type 'INTEGER' or 'REAL'
  
  _Return value_:
!      The return value is a scalar of type 'INTEGER' and of the default
       integer kind.
  
  _See also_:
*************** _Example_:
*** 14922,14937 ****
              print *, "The radix for the default real kind is", radix(0.0)
            end program test_radix
  
- 
  
  File: gfortran.info,  Node: RAN,  Next: RAND,  Prev: RADIX,  Up: Intrinsic Procedures
  
! 9.213 `RAN' -- Real pseudo-random number
  ========================================
  
  _Description_:
!      For compatibility with HP FORTRAN 77/iX, the `RAN' intrinsic is
!      provided as an alias for `RAND'.  See *note RAND:: for complete
       documentation.
  
  _Standard_:
--- 14770,14784 ----
              print *, "The radix for the default real kind is", radix(0.0)
            end program test_radix
  
  
  File: gfortran.info,  Node: RAN,  Next: RAND,  Prev: RADIX,  Up: Intrinsic Procedures
  
! 9.213 'RAN' -- Real pseudo-random number
  ========================================
  
  _Description_:
!      For compatibility with HP FORTRAN 77/iX, the 'RAN' intrinsic is
!      provided as an alias for 'RAND'.  See *note RAND:: for complete
       documentation.
  
  _Standard_:
*************** _See also_:
*** 14946,14965 ****
  
  File: gfortran.info,  Node: RAND,  Next: RANDOM_NUMBER,  Prev: RAN,  Up: Intrinsic Procedures
  
! 9.214 `RAND' -- Real pseudo-random number
  =========================================
  
  _Description_:
!      `RAND(FLAG)' returns a pseudo-random number from a uniform
!      distribution between 0 and 1. If FLAG is 0, the next number in the
       current sequence is returned; if FLAG is 1, the generator is
!      restarted by `CALL SRAND(0)'; if FLAG has any other value, it is
!      used as a new seed with `SRAND'.
  
       This intrinsic routine is provided for backwards compatibility with
!      GNU Fortran 77. It implements a simple modulo generator as provided
!      by `g77'. For new code, one should consider the use of *note
!      RANDOM_NUMBER:: as it implements a superior algorithm.
  
  _Standard_:
       GNU extension
--- 14793,14812 ----
  
  File: gfortran.info,  Node: RAND,  Next: RANDOM_NUMBER,  Prev: RAN,  Up: Intrinsic Procedures
  
! 9.214 'RAND' -- Real pseudo-random number
  =========================================
  
  _Description_:
!      'RAND(FLAG)' returns a pseudo-random number from a uniform
!      distribution between 0 and 1.  If FLAG is 0, the next number in the
       current sequence is returned; if FLAG is 1, the generator is
!      restarted by 'CALL SRAND(0)'; if FLAG has any other value, it is
!      used as a new seed with 'SRAND'.
  
       This intrinsic routine is provided for backwards compatibility with
!      GNU Fortran 77.  It implements a simple modulo generator as
!      provided by 'g77'.  For new code, one should consider the use of
!      *note RANDOM_NUMBER:: as it implements a superior algorithm.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 14968,14980 ****
       Function
  
  _Syntax_:
!      `RESULT = RAND(I)'
  
  _Arguments_:
!      I          Shall be a scalar `INTEGER' of kind 4.
  
  _Return value_:
!      The return value is of `REAL' type and the default kind.
  
  _Example_:
            program test_rand
--- 14815,14827 ----
       Function
  
  _Syntax_:
!      'RESULT = RAND(I)'
  
  _Arguments_:
!      I           Shall be a scalar 'INTEGER' of kind 4.
  
  _Return value_:
!      The return value is of 'REAL' type and the default kind.
  
  _Example_:
            program test_rand
*************** _Example_:
*** 14988,15022 ****
  _See also_:
       *note SRAND::, *note RANDOM_NUMBER::
  
- 
  
  File: gfortran.info,  Node: RANDOM_NUMBER,  Next: RANDOM_SEED,  Prev: RAND,  Up: Intrinsic Procedures
  
! 9.215 `RANDOM_NUMBER' -- Pseudo-random number
  =============================================
  
  _Description_:
       Returns a single pseudorandom number or an array of pseudorandom
!      numbers from the uniform distribution over the range  0 \leq x < 1.
  
       The runtime-library implements George Marsaglia's KISS (Keep It
       Simple Stupid) random number generator (RNG). This RNG combines:
         1. The congruential generator x(n) = 69069 \cdot x(n-1) +
!           1327217885 with a period of 2^32,
! 
!        2. A 3-shift shift-register generator with a period of 2^32 - 1,
! 
         3. Two 16-bit multiply-with-carry generators with a period of
!           597273182964842497 > 2^59.
!           The overall period exceeds 2^123.
  
       Please note, this RNG is thread safe if used within OpenMP
       directives, i.e., its state will be consistent while called from
       multiple threads.  However, the KISS generator does not create
       random numbers in parallel from multiple sources, but in sequence
!      from a single source. If an OpenMP-enabled application heavily
!      relies on random numbers, one should consider employing a
!      dedicated parallel random number generator instead.
  
  _Standard_:
       Fortran 95 and later
--- 14835,14867 ----
  _See also_:
       *note SRAND::, *note RANDOM_NUMBER::
  
  
  File: gfortran.info,  Node: RANDOM_NUMBER,  Next: RANDOM_SEED,  Prev: RAND,  Up: Intrinsic Procedures
  
! 9.215 'RANDOM_NUMBER' -- Pseudo-random number
  =============================================
  
  _Description_:
       Returns a single pseudorandom number or an array of pseudorandom
!      numbers from the uniform distribution over the range 0 \leq x < 1.
  
       The runtime-library implements George Marsaglia's KISS (Keep It
       Simple Stupid) random number generator (RNG). This RNG combines:
         1. The congruential generator x(n) = 69069 \cdot x(n-1) +
!           1327217885 with a period of 2^{32},
!        2. A 3-shift shift-register generator with a period of 2^{32} -
!           1,
         3. Two 16-bit multiply-with-carry generators with a period of
!           597273182964842497 > 2^{59}.
!      The overall period exceeds 2^{123}.
  
       Please note, this RNG is thread safe if used within OpenMP
       directives, i.e., its state will be consistent while called from
       multiple threads.  However, the KISS generator does not create
       random numbers in parallel from multiple sources, but in sequence
!      from a single source.  If an OpenMP-enabled application heavily
!      relies on random numbers, one should consider employing a dedicated
!      parallel random number generator instead.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 15025,15034 ****
       Subroutine
  
  _Syntax_:
!      `RANDOM_NUMBER(HARVEST)'
  
  _Arguments_:
!      HARVEST    Shall be a scalar or an array of type `REAL'.
  
  _Example_:
            program test_random_number
--- 14870,14879 ----
       Subroutine
  
  _Syntax_:
!      'RANDOM_NUMBER(HARVEST)'
  
  _Arguments_:
!      HARVEST     Shall be a scalar or an array of type 'REAL'.
  
  _Example_:
            program test_random_number
*************** _See also_:
*** 15043,15061 ****
  
  File: gfortran.info,  Node: RANDOM_SEED,  Next: RANGE,  Prev: RANDOM_NUMBER,  Up: Intrinsic Procedures
  
! 9.216 `RANDOM_SEED' -- Initialize a pseudo-random number sequence
  =================================================================
  
  _Description_:
       Restarts or queries the state of the pseudorandom number generator
!      used by `RANDOM_NUMBER'.
  
!      If `RANDOM_SEED' is called without arguments, it is initialized to
!      a default state. The example below shows how to initialize the
       random seed with a varying seed in order to ensure a different
!      random number sequence for each invocation of the program. Note
!      that setting any of the seed values to zero should be avoided as
!      it can result in poor quality random numbers being generated.
  
  _Standard_:
       Fortran 95 and later
--- 14888,14906 ----
  
  File: gfortran.info,  Node: RANDOM_SEED,  Next: RANGE,  Prev: RANDOM_NUMBER,  Up: Intrinsic Procedures
  
! 9.216 'RANDOM_SEED' -- Initialize a pseudo-random number sequence
  =================================================================
  
  _Description_:
       Restarts or queries the state of the pseudorandom number generator
!      used by 'RANDOM_NUMBER'.
  
!      If 'RANDOM_SEED' is called without arguments, it is initialized to
!      a default state.  The example below shows how to initialize the
       random seed with a varying seed in order to ensure a different
!      random number sequence for each invocation of the program.  Note
!      that setting any of the seed values to zero should be avoided as it
!      can result in poor quality random numbers being generated.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 15064,15086 ****
       Subroutine
  
  _Syntax_:
!      `CALL RANDOM_SEED([SIZE, PUT, GET])'
  
  _Arguments_:
!      SIZE       (Optional) Shall be a scalar and of type
!                 default `INTEGER', with `INTENT(OUT)'. It
!                 specifies the minimum size of the arrays used
!                 with the PUT and GET arguments.
!      PUT        (Optional) Shall be an array of type default
!                 `INTEGER' and rank one. It is `INTENT(IN)' and
!                 the size of the array must be larger than or
!                 equal to the number returned by the SIZE
!                 argument.
!      GET        (Optional) Shall be an array of type default
!                 `INTEGER' and rank one. It is `INTENT(OUT)'
!                 and the size of the array must be larger than
!                 or equal to the number returned by the SIZE
!                 argument.
  
  _Example_:
            subroutine init_random_seed()
--- 14909,14931 ----
       Subroutine
  
  _Syntax_:
!      'CALL RANDOM_SEED([SIZE, PUT, GET])'
  
  _Arguments_:
!      SIZE        (Optional) Shall be a scalar and of type default
!                  'INTEGER', with 'INTENT(OUT)'.  It specifies the
!                  minimum size of the arrays used with the PUT and
!                  GET arguments.
!      PUT         (Optional) Shall be an array of type default
!                  'INTEGER' and rank one.  It is 'INTENT(IN)' and
!                  the size of the array must be larger than or
!                  equal to the number returned by the SIZE
!                  argument.
!      GET         (Optional) Shall be an array of type default
!                  'INTEGER' and rank one.  It is 'INTENT(OUT)' and
!                  the size of the array must be larger than or
!                  equal to the number returned by the SIZE
!                  argument.
  
  _Example_:
            subroutine init_random_seed()
*************** _See also_:
*** 15141,15152 ****
  
  File: gfortran.info,  Node: RANGE,  Next: RANK,  Prev: RANDOM_SEED,  Up: Intrinsic Procedures
  
! 9.217 `RANGE' -- Decimal exponent range
  =======================================
  
  _Description_:
!      `RANGE(X)' returns the decimal exponent range in the model of the
!      type of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 14986,14997 ----
  
  File: gfortran.info,  Node: RANGE,  Next: RANK,  Prev: RANDOM_SEED,  Up: Intrinsic Procedures
  
! 9.217 'RANGE' -- Decimal exponent range
  =======================================
  
  _Description_:
!      'RANGE(X)' returns the decimal exponent range in the model of the
!      type of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 15155,15184 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = RANGE(X)'
  
  _Arguments_:
!      X          Shall be of type `INTEGER', `REAL' or
!                 `COMPLEX'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
       kind.
  
  _See also_:
       *note SELECTED_REAL_KIND::, *note PRECISION::
  
  _Example_:
!      See `PRECISION' for an example.
  
  
  File: gfortran.info,  Node: RANK,  Next: REAL,  Prev: RANGE,  Up: Intrinsic Procedures
  
! 9.218 `RANK' -- Rank of a data object
  =====================================
  
  _Description_:
!      `RANK(A)' returns the rank of a scalar or array data object.
  
  _Standard_:
       Technical Specification (TS) 29113
--- 15000,15028 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = RANGE(X)'
  
  _Arguments_:
!      X           Shall be of type 'INTEGER', 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
       kind.
  
  _See also_:
       *note SELECTED_REAL_KIND::, *note PRECISION::
  
  _Example_:
!      See 'PRECISION' for an example.
  
  
  File: gfortran.info,  Node: RANK,  Next: REAL,  Prev: RANGE,  Up: Intrinsic Procedures
  
! 9.218 'RANK' -- Rank of a data object
  =====================================
  
  _Description_:
!      'RANK(A)' returns the rank of a scalar or array data object.
  
  _Standard_:
       Technical Specification (TS) 29113
*************** _Class_:
*** 15187,15200 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = RANK(A)'
  
  _Arguments_:
!      A          can be of any type
  
  _Return value_:
!      The return value is of type `INTEGER' and of the default integer
!      kind. For arrays, their rank is returned; for scalars zero is
       returned.
  
  _Example_:
--- 15031,15044 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = RANK(A)'
  
  _Arguments_:
!      A           can be of any type
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the default integer
!      kind.  For arrays, their rank is returned; for scalars zero is
       returned.
  
  _Example_:
*************** _Example_:
*** 15205,15220 ****
              print *, rank(a), rank(b) ! Prints:  0  2
            end program test_rank
  
- 
  
  File: gfortran.info,  Node: REAL,  Next: RENAME,  Prev: RANK,  Up: Intrinsic Procedures
  
! 9.219 `REAL' -- Convert to real type
  ====================================
  
  _Description_:
!      `REAL(A [, KIND])' converts its argument A to a real type.  The
!      `REALPART' function is provided for compatibility with `g77', and
       its use is strongly discouraged.
  
  _Standard_:
--- 15049,15063 ----
              print *, rank(a), rank(b) ! Prints:  0  2
            end program test_rank
  
  
  File: gfortran.info,  Node: REAL,  Next: RENAME,  Prev: RANK,  Up: Intrinsic Procedures
  
! 9.219 'REAL' -- Convert to real type
  ====================================
  
  _Description_:
!      'REAL(A [, KIND])' converts its argument A to a real type.  The
!      'REALPART' function is provided for compatibility with 'g77', and
       its use is strongly discouraged.
  
  _Standard_:
*************** _Class_:
*** 15224,15252 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = REAL(A [, KIND])'
!      `RESULT = REALPART(Z)'
  
  _Arguments_:
!      A          Shall be `INTEGER', `REAL', or `COMPLEX'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      These functions return a `REAL' variable or array under the
       following rules:
  
!     (A)
!           `REAL(A)' is converted to a default real type if A is an
            integer or real variable.
! 
!     (B)
!           `REAL(A)' is converted to a real type with the kind type
            parameter of A if A is a complex variable.
! 
!     (C)
!           `REAL(A, KIND)' is converted to a real type with kind type
            parameter KIND if A is a complex, integer, or real variable.
  
  _Example_:
--- 15067,15093 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = REAL(A [, KIND])'
!      'RESULT = REALPART(Z)'
  
  _Arguments_:
!      A           Shall be 'INTEGER', 'REAL', or 'COMPLEX'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      These functions return a 'REAL' variable or array under the
       following rules:
  
!      (A)
!           'REAL(A)' is converted to a default real type if A is an
            integer or real variable.
!      (B)
!           'REAL(A)' is converted to a real type with the kind type
            parameter of A if A is a complex variable.
!      (C)
!           'REAL(A, KIND)' is converted to a real type with kind type
            parameter KIND if A is a complex, integer, or real variable.
  
  _Example_:
*************** _Example_:
*** 15256,15284 ****
            end program test_real
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `FLOAT(A)'    `INTEGER(4)'  `REAL(4)'     Fortran 77 and
!                                                later
!      `DFLOAT(A)'   `INTEGER(4)'  `REAL(8)'     GNU extension
!      `SNGL(A)'     `INTEGER(8)'  `REAL(4)'     Fortran 77 and
!                                                later
  
  _See also_:
       *note DBLE::
  
- 
  
  File: gfortran.info,  Node: RENAME,  Next: REPEAT,  Prev: REAL,  Up: Intrinsic Procedures
  
! 9.220 `RENAME' -- Rename a file
  ===============================
  
  _Description_:
!      Renames a file from file PATH1 to PATH2. A null character
!      (`CHAR(0)') can be used to mark the end of the names in PATH1 and
       PATH2; otherwise, trailing blanks in the file names are ignored.
       If the STATUS argument is supplied, it contains 0 on success or a
!      nonzero error code upon return; see `rename(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 15097,15124 ----
            end program test_real
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'FLOAT(A)'     'INTEGER(4)'   'REAL(4)'      Fortran 77 and
!                                                   later
!      'DFLOAT(A)'    'INTEGER(4)'   'REAL(8)'      GNU extension
!      'SNGL(A)'      'INTEGER(8)'   'REAL(4)'      Fortran 77 and
!                                                   later
  
  _See also_:
       *note DBLE::
  
  
  File: gfortran.info,  Node: RENAME,  Next: REPEAT,  Prev: REAL,  Up: Intrinsic Procedures
  
! 9.220 'RENAME' -- Rename a file
  ===============================
  
  _Description_:
!      Renames a file from file PATH1 to PATH2.  A null character
!      ('CHAR(0)') can be used to mark the end of the names in PATH1 and
       PATH2; otherwise, trailing blanks in the file names are ignored.
       If the STATUS argument is supplied, it contains 0 on success or a
!      nonzero error code upon return; see 'rename(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 15290,15311 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL RENAME(PATH1, PATH2 [, STATUS])'
!      `STATUS = RENAME(PATH1, PATH2)'
  
  _Arguments_:
!      PATH1      Shall be of default `CHARACTER' type.
!      PATH2      Shall be of default `CHARACTER' type.
!      STATUS     (Optional) Shall be of default `INTEGER' type.
  
  _See also_:
       *note LINK::
  
- 
  
  File: gfortran.info,  Node: REPEAT,  Next: RESHAPE,  Prev: RENAME,  Up: Intrinsic Procedures
  
! 9.221 `REPEAT' -- Repeated string concatenation
  ===============================================
  
  _Description_:
--- 15130,15150 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL RENAME(PATH1, PATH2 [, STATUS])'
!      'STATUS = RENAME(PATH1, PATH2)'
  
  _Arguments_:
!      PATH1       Shall be of default 'CHARACTER' type.
!      PATH2       Shall be of default 'CHARACTER' type.
!      STATUS      (Optional) Shall be of default 'INTEGER' type.
  
  _See also_:
       *note LINK::
  
  
  File: gfortran.info,  Node: REPEAT,  Next: RESHAPE,  Prev: RENAME,  Up: Intrinsic Procedures
  
! 9.221 'REPEAT' -- Repeated string concatenation
  ===============================================
  
  _Description_:
*************** _Class_:
*** 15318,15331 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = REPEAT(STRING, NCOPIES)'
  
  _Arguments_:
!      STRING     Shall be scalar and of type `CHARACTER'.
!      NCOPIES    Shall be scalar and of type `INTEGER'.
  
  _Return value_:
!      A new scalar of type `CHARACTER' built up from NCOPIES copies of
       STRING.
  
  _Example_:
--- 15157,15170 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = REPEAT(STRING, NCOPIES)'
  
  _Arguments_:
!      STRING      Shall be scalar and of type 'CHARACTER'.
!      NCOPIES     Shall be scalar and of type 'INTEGER'.
  
  _Return value_:
!      A new scalar of type 'CHARACTER' built up from NCOPIES copies of
       STRING.
  
  _Example_:
*************** _Example_:
*** 15336,15346 ****
  
  File: gfortran.info,  Node: RESHAPE,  Next: RRSPACING,  Prev: REPEAT,  Up: Intrinsic Procedures
  
! 9.222 `RESHAPE' -- Function to reshape an array
  ===============================================
  
  _Description_:
!      Reshapes SOURCE to correspond to SHAPE. If necessary, the new
       array may be padded with elements from PAD or permuted as defined
       by ORDER.
  
--- 15175,15185 ----
  
  File: gfortran.info,  Node: RESHAPE,  Next: RRSPACING,  Prev: REPEAT,  Up: Intrinsic Procedures
  
! 9.222 'RESHAPE' -- Function to reshape an array
  ===============================================
  
  _Description_:
!      Reshapes SOURCE to correspond to SHAPE.  If necessary, the new
       array may be padded with elements from PAD or permuted as defined
       by ORDER.
  
*************** _Class_:
*** 15351,15370 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = RESHAPE(SOURCE, SHAPE[, PAD, ORDER])'
  
  _Arguments_:
!      SOURCE     Shall be an array of any type.
!      SHAPE      Shall be of type `INTEGER' and an array of
!                 rank one. Its values must be positive or zero.
!      PAD        (Optional) shall be an array of the same type
!                 as SOURCE.
!      ORDER      (Optional) shall be of type `INTEGER' and an
!                 array of the same shape as SHAPE. Its values
!                 shall be a permutation of the numbers from 1
!                 to n, where n is the size of SHAPE. If ORDER
!                 is absent, the natural ordering shall be
!                 assumed.
  
  _Return value_:
       The result is an array of shape SHAPE with the same type as SOURCE.
--- 15190,15208 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = RESHAPE(SOURCE, SHAPE[, PAD, ORDER])'
  
  _Arguments_:
!      SOURCE      Shall be an array of any type.
!      SHAPE       Shall be of type 'INTEGER' and an array of rank
!                  one.  Its values must be positive or zero.
!      PAD         (Optional) shall be an array of the same type as
!                  SOURCE.
!      ORDER       (Optional) shall be of type 'INTEGER' and an
!                  array of the same shape as SHAPE.  Its values
!                  shall be a permutation of the numbers from 1 to
!                  n, where n is the size of SHAPE.  If ORDER is
!                  absent, the natural ordering shall be assumed.
  
  _Return value_:
       The result is an array of shape SHAPE with the same type as SOURCE.
*************** _See also_:
*** 15382,15392 ****
  
  File: gfortran.info,  Node: RRSPACING,  Next: RSHIFT,  Prev: RESHAPE,  Up: Intrinsic Procedures
  
! 9.223 `RRSPACING' -- Reciprocal of the relative spacing
  =======================================================
  
  _Description_:
!      `RRSPACING(X)' returns the  reciprocal of the relative spacing of
       model numbers near X.
  
  _Standard_:
--- 15220,15230 ----
  
  File: gfortran.info,  Node: RRSPACING,  Next: RSHIFT,  Prev: RESHAPE,  Up: Intrinsic Procedures
  
! 9.223 'RRSPACING' -- Reciprocal of the relative spacing
  =======================================================
  
  _Description_:
!      'RRSPACING(X)' returns the reciprocal of the relative spacing of
       model numbers near X.
  
  _Standard_:
*************** _Class_:
*** 15396,15409 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = RRSPACING(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The value
!      returned is equal to `ABS(FRACTION(X)) *
       FLOAT(RADIX(X))**DIGITS(X)'.
  
  _See also_:
--- 15234,15247 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = RRSPACING(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The value
!      returned is equal to 'ABS(FRACTION(X)) *
       FLOAT(RADIX(X))**DIGITS(X)'.
  
  _See also_:
*************** _See also_:
*** 15412,15429 ****
  
  File: gfortran.info,  Node: RSHIFT,  Next: SAME_TYPE_AS,  Prev: RRSPACING,  Up: Intrinsic Procedures
  
! 9.224 `RSHIFT' -- Right shift bits
  ==================================
  
  _Description_:
!      `RSHIFT' returns a value corresponding to I with all of the bits
       shifted right by SHIFT places.  If the absolute value of SHIFT is
!      greater than `BIT_SIZE(I)', the value is undefined.  Bits shifted
!      out from the right end are lost. The fill is arithmetic: the bits
       shifted in from the left end are equal to the leftmost bit, which
       in two's complement representation is the sign bit.
  
!      This function has been superseded by the `SHIFTA' intrinsic, which
       is standard in Fortran 2008 and later.
  
  _Standard_:
--- 15250,15267 ----
  
  File: gfortran.info,  Node: RSHIFT,  Next: SAME_TYPE_AS,  Prev: RRSPACING,  Up: Intrinsic Procedures
  
! 9.224 'RSHIFT' -- Right shift bits
  ==================================
  
  _Description_:
!      'RSHIFT' returns a value corresponding to I with all of the bits
       shifted right by SHIFT places.  If the absolute value of SHIFT is
!      greater than 'BIT_SIZE(I)', the value is undefined.  Bits shifted
!      out from the right end are lost.  The fill is arithmetic: the bits
       shifted in from the left end are equal to the leftmost bit, which
       in two's complement representation is the sign bit.
  
!      This function has been superseded by the 'SHIFTA' intrinsic, which
       is standard in Fortran 2008 and later.
  
  _Standard_:
*************** _Class_:
*** 15433,15457 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = RSHIFT(I, SHIFT)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFT::, *note ISHFTC::, *note LSHIFT::, *note SHIFTA::,
       *note SHIFTR::, *note SHIFTL::
  
- 
  
  File: gfortran.info,  Node: SAME_TYPE_AS,  Next: SCALE,  Prev: RSHIFT,  Up: Intrinsic Procedures
  
! 9.225 `SAME_TYPE_AS' --  Query dynamic types for equality
! =========================================================
  
  _Description_:
       Query dynamic types for equality.
--- 15271,15294 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = RSHIFT(I, SHIFT)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note ISHFT::, *note ISHFTC::, *note LSHIFT::, *note SHIFTA::,
       *note SHIFTR::, *note SHIFTL::
  
  
  File: gfortran.info,  Node: SAME_TYPE_AS,  Next: SCALE,  Prev: RSHIFT,  Up: Intrinsic Procedures
  
! 9.225 'SAME_TYPE_AS' -- Query dynamic types for equality
! ========================================================
  
  _Description_:
       Query dynamic types for equality.
*************** _Class_:
*** 15463,15493 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = SAME_TYPE_AS(A, B)'
  
  _Arguments_:
!      A          Shall be an object of extensible declared type
!                 or unlimited polymorphic.
!      B          Shall be an object of extensible declared type
!                 or unlimited polymorphic.
  
  _Return value_:
!      The return value is a scalar of type default logical. It is true
       if and only if the dynamic type of A is the same as the dynamic
       type of B.
  
  _See also_:
       *note EXTENDS_TYPE_OF::
  
- 
  
  File: gfortran.info,  Node: SCALE,  Next: SCAN,  Prev: SAME_TYPE_AS,  Up: Intrinsic Procedures
  
! 9.226 `SCALE' -- Scale a real value
  ===================================
  
  _Description_:
!      `SCALE(X,I)' returns `X * RADIX(X)**I'.
  
  _Standard_:
       Fortran 95 and later
--- 15300,15329 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = SAME_TYPE_AS(A, B)'
  
  _Arguments_:
!      A           Shall be an object of extensible declared type
!                  or unlimited polymorphic.
!      B           Shall be an object of extensible declared type
!                  or unlimited polymorphic.
  
  _Return value_:
!      The return value is a scalar of type default logical.  It is true
       if and only if the dynamic type of A is the same as the dynamic
       type of B.
  
  _See also_:
       *note EXTENDS_TYPE_OF::
  
  
  File: gfortran.info,  Node: SCALE,  Next: SCAN,  Prev: SAME_TYPE_AS,  Up: Intrinsic Procedures
  
! 9.226 'SCALE' -- Scale a real value
  ===================================
  
  _Description_:
!      'SCALE(X,I)' returns 'X * RADIX(X)**I'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 15496,15510 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SCALE(X, I)'
  
  _Arguments_:
!      X          The type of the argument shall be a `REAL'.
!      I          The type of the argument shall be a `INTEGER'.
  
  _Return value_:
       The return value is of the same type and kind as X.  Its value is
!      `X * RADIX(X)**I'.
  
  _Example_:
            program test_scale
--- 15332,15346 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SCALE(X, I)'
  
  _Arguments_:
!      X           The type of the argument shall be a 'REAL'.
!      I           The type of the argument shall be a 'INTEGER'.
  
  _Return value_:
       The return value is of the same type and kind as X.  Its value is
!      'X * RADIX(X)**I'.
  
  _Example_:
            program test_scale
*************** _Example_:
*** 15513,15531 ****
              print *, scale(x,i), x*radix(x)**i
            end program test_scale
  
- 
  
  File: gfortran.info,  Node: SCAN,  Next: SECNDS,  Prev: SCALE,  Up: Intrinsic Procedures
  
! 9.227 `SCAN' -- Scan a string for the presence of a set of characters
  =====================================================================
  
  _Description_:
       Scans a STRING for any of the characters in a SET of characters.
  
!      If BACK is either absent or equals `FALSE', this function returns
       the position of the leftmost character of STRING that is in SET.
!      If BACK equals `TRUE', the rightmost position is returned. If no
       character of SET is found in STRING, the result is zero.
  
  _Standard_:
--- 15349,15366 ----
              print *, scale(x,i), x*radix(x)**i
            end program test_scale
  
  
  File: gfortran.info,  Node: SCAN,  Next: SECNDS,  Prev: SCALE,  Up: Intrinsic Procedures
  
! 9.227 'SCAN' -- Scan a string for the presence of a set of characters
  =====================================================================
  
  _Description_:
       Scans a STRING for any of the characters in a SET of characters.
  
!      If BACK is either absent or equals 'FALSE', this function returns
       the position of the leftmost character of STRING that is in SET.
!      If BACK equals 'TRUE', the rightmost position is returned.  If no
       character of SET is found in STRING, the result is zero.
  
  _Standard_:
*************** _Class_:
*** 15535,15552 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SCAN(STRING, SET[, BACK [, KIND]])'
  
  _Arguments_:
!      STRING     Shall be of type `CHARACTER'.
!      SET        Shall be of type `CHARACTER'.
!      BACK       (Optional) shall be of type `LOGICAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
--- 15370,15387 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SCAN(STRING, SET[, BACK [, KIND]])'
  
  _Arguments_:
!      STRING      Shall be of type 'CHARACTER'.
!      SET         Shall be of type 'CHARACTER'.
!      BACK        (Optional) shall be of type 'LOGICAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
*************** _See also_:
*** 15562,15574 ****
  
  File: gfortran.info,  Node: SECNDS,  Next: SECOND,  Prev: SCAN,  Up: Intrinsic Procedures
  
! 9.228 `SECNDS' -- Time function
  ===============================
  
  _Description_:
!      `SECNDS(X)' gets the time in seconds from the real-time system
!      clock.  X is a reference time, also in seconds. If this is zero,
!      the time in seconds from midnight is returned. This function is
       non-standard and its use is discouraged.
  
  _Standard_:
--- 15397,15409 ----
  
  File: gfortran.info,  Node: SECNDS,  Next: SECOND,  Prev: SCAN,  Up: Intrinsic Procedures
  
! 9.228 'SECNDS' -- Time function
  ===============================
  
  _Description_:
!      'SECNDS(X)' gets the time in seconds from the real-time system
!      clock.  X is a reference time, also in seconds.  If this is zero,
!      the time in seconds from midnight is returned.  This function is
       non-standard and its use is discouraged.
  
  _Standard_:
*************** _Class_:
*** 15578,15588 ****
       Function
  
  _Syntax_:
!      `RESULT = SECNDS (X)'
  
  _Arguments_:
!      T          Shall be of type `REAL(4)'.
!      X          Shall be of type `REAL(4)'.
  
  _Return value_:
       None
--- 15413,15423 ----
       Function
  
  _Syntax_:
!      'RESULT = SECNDS (X)'
  
  _Arguments_:
!      T           Shall be of type 'REAL(4)'.
!      X           Shall be of type 'REAL(4)'.
  
  _Return value_:
       None
*************** _Example_:
*** 15602,15614 ****
  
  File: gfortran.info,  Node: SECOND,  Next: SELECTED_CHAR_KIND,  Prev: SECNDS,  Up: Intrinsic Procedures
  
! 9.229 `SECOND' -- CPU time function
  ===================================
  
  _Description_:
!      Returns a `REAL(4)' value representing the elapsed CPU time in
       seconds.  This provides the same functionality as the standard
!      `CPU_TIME' intrinsic, and is only included for backwards
       compatibility.
  
       This intrinsic is provided in both subroutine and function forms;
--- 15437,15449 ----
  
  File: gfortran.info,  Node: SECOND,  Next: SELECTED_CHAR_KIND,  Prev: SECNDS,  Up: Intrinsic Procedures
  
! 9.229 'SECOND' -- CPU time function
  ===================================
  
  _Description_:
!      Returns a 'REAL(4)' value representing the elapsed CPU time in
       seconds.  This provides the same functionality as the standard
!      'CPU_TIME' intrinsic, and is only included for backwards
       compatibility.
  
       This intrinsic is provided in both subroutine and function forms;
*************** _Class_:
*** 15621,15631 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL SECOND(TIME)'
!      `TIME = SECOND()'
  
  _Arguments_:
!      TIME       Shall be of type `REAL(4)'.
  
  _Return value_:
       In either syntax, TIME is set to the process's current runtime in
--- 15456,15466 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL SECOND(TIME)'
!      'TIME = SECOND()'
  
  _Arguments_:
!      TIME        Shall be of type 'REAL(4)'.
  
  _Return value_:
       In either syntax, TIME is set to the process's current runtime in
*************** _Return value_:
*** 15634,15650 ****
  _See also_:
       *note CPU_TIME::
  
- 
  
  File: gfortran.info,  Node: SELECTED_CHAR_KIND,  Next: SELECTED_INT_KIND,  Prev: SECOND,  Up: Intrinsic Procedures
  
! 9.230 `SELECTED_CHAR_KIND' -- Choose character kind
  ===================================================
  
  _Description_:
!      `SELECTED_CHAR_KIND(NAME)' returns the kind value for the character
       set named NAME, if a character set with such a name is supported,
!      or -1 otherwise. Currently, supported character sets include
       "ASCII" and "DEFAULT", which are equivalent, and "ISO_10646"
       (Universal Character Set, UCS-4) which is commonly known as
       Unicode.
--- 15469,15485 ----
  _See also_:
       *note CPU_TIME::
  
  
  File: gfortran.info,  Node: SELECTED_CHAR_KIND,  Next: SELECTED_INT_KIND,  Prev: SECOND,  Up: Intrinsic Procedures
  
! 9.230 'SELECTED_CHAR_KIND' -- Choose character kind
  ===================================================
  
  _Description_:
! 
!      'SELECTED_CHAR_KIND(NAME)' returns the kind value for the character
       set named NAME, if a character set with such a name is supported,
!      or -1 otherwise.  Currently, supported character sets include
       "ASCII" and "DEFAULT", which are equivalent, and "ISO_10646"
       (Universal Character Set, UCS-4) which is commonly known as
       Unicode.
*************** _Class_:
*** 15656,15666 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = SELECTED_CHAR_KIND(NAME)'
  
  _Arguments_:
!      NAME       Shall be a scalar and of the default character
!                 type.
  
  _Example_:
            program character_kind
--- 15491,15501 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = SELECTED_CHAR_KIND(NAME)'
  
  _Arguments_:
!      NAME        Shall be a scalar and of the default character
!                  type.
  
  _Example_:
            program character_kind
*************** _Example_:
*** 15686,15699 ****
  
  File: gfortran.info,  Node: SELECTED_INT_KIND,  Next: SELECTED_REAL_KIND,  Prev: SELECTED_CHAR_KIND,  Up: Intrinsic Procedures
  
! 9.231 `SELECTED_INT_KIND' -- Choose integer kind
  ================================================
  
  _Description_:
!      `SELECTED_INT_KIND(R)' return the kind value of the smallest
       integer type that can represent all values ranging from -10^R
!      (exclusive) to 10^R (exclusive). If there is no integer kind that
!      accommodates this range, `SELECTED_INT_KIND' returns -1.
  
  _Standard_:
       Fortran 95 and later
--- 15521,15534 ----
  
  File: gfortran.info,  Node: SELECTED_INT_KIND,  Next: SELECTED_REAL_KIND,  Prev: SELECTED_CHAR_KIND,  Up: Intrinsic Procedures
  
! 9.231 'SELECTED_INT_KIND' -- Choose integer kind
  ================================================
  
  _Description_:
!      'SELECTED_INT_KIND(R)' return the kind value of the smallest
       integer type that can represent all values ranging from -10^R
!      (exclusive) to 10^R (exclusive).  If there is no integer kind that
!      accommodates this range, 'SELECTED_INT_KIND' returns -1.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 15702,15711 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = SELECTED_INT_KIND(R)'
  
  _Arguments_:
!      R          Shall be a scalar and of type `INTEGER'.
  
  _Example_:
            program large_integers
--- 15537,15546 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = SELECTED_INT_KIND(R)'
  
  _Arguments_:
!      R           Shall be a scalar and of type 'INTEGER'.
  
  _Example_:
            program large_integers
*************** _Example_:
*** 15724,15780 ****
  
  File: gfortran.info,  Node: SELECTED_REAL_KIND,  Next: SET_EXPONENT,  Prev: SELECTED_INT_KIND,  Up: Intrinsic Procedures
  
! 9.232 `SELECTED_REAL_KIND' -- Choose real kind
  ==============================================
  
  _Description_:
!      `SELECTED_REAL_KIND(P,R)' returns the kind value of a real data
!      type with decimal precision of at least `P' digits, exponent range
!      of at least `R', and with a radix of `RADIX'.
  
  _Standard_:
!      Fortran 95 and later, with `RADIX' Fortran 2008 or later
  
  _Class_:
       Transformational function
  
  _Syntax_:
!      `RESULT = SELECTED_REAL_KIND([P, R, RADIX])'
  
  _Arguments_:
!      P          (Optional) shall be a scalar and of type
!                 `INTEGER'.
!      R          (Optional) shall be a scalar and of type
!                 `INTEGER'.
!      RADIX      (Optional) shall be a scalar and of type
!                 `INTEGER'.
       Before Fortran 2008, at least one of the arguments R or P shall be
       present; since Fortran 2008, they are assumed to be zero if absent.
  
  _Return value_:
!      `SELECTED_REAL_KIND' returns the value of the kind type parameter
!      of a real data type with decimal precision of at least `P' digits,
!      a decimal exponent range of at least `R', and with the requested
!      `RADIX'. If the `RADIX' parameter is absent, real kinds with any
!      radix can be returned. If more than one real data type meet the
       criteria, the kind of the data type with the smallest decimal
!      precision is returned. If no real data type matches the criteria,
       the result is
!     -1 if the processor does not support a real data type with a
!           precision greater than or equal to `P', but the `R' and
!           `RADIX' requirements can be fulfilled
! 
!     -2 if the processor does not support a real type with an exponent
!           range greater than or equal to `R', but `P' and `RADIX' are
            fulfillable
! 
!     -3 if `RADIX' but not `P' and `R' requirements
            are fulfillable
! 
!     -4 if `RADIX' and either `P' or `R' requirements
            are fulfillable
! 
!     -5 if there is no real type with the given `RADIX'
  
  _See also_:
       *note PRECISION::, *note RANGE::, *note RADIX::
--- 15559,15612 ----
  
  File: gfortran.info,  Node: SELECTED_REAL_KIND,  Next: SET_EXPONENT,  Prev: SELECTED_INT_KIND,  Up: Intrinsic Procedures
  
! 9.232 'SELECTED_REAL_KIND' -- Choose real kind
  ==============================================
  
  _Description_:
!      'SELECTED_REAL_KIND(P,R)' returns the kind value of a real data
!      type with decimal precision of at least 'P' digits, exponent range
!      of at least 'R', and with a radix of 'RADIX'.
  
  _Standard_:
!      Fortran 95 and later, with 'RADIX' Fortran 2008 or later
  
  _Class_:
       Transformational function
  
  _Syntax_:
!      'RESULT = SELECTED_REAL_KIND([P, R, RADIX])'
  
  _Arguments_:
!      P           (Optional) shall be a scalar and of type
!                  'INTEGER'.
!      R           (Optional) shall be a scalar and of type
!                  'INTEGER'.
!      RADIX       (Optional) shall be a scalar and of type
!                  'INTEGER'.
       Before Fortran 2008, at least one of the arguments R or P shall be
       present; since Fortran 2008, they are assumed to be zero if absent.
  
  _Return value_:
! 
!      'SELECTED_REAL_KIND' returns the value of the kind type parameter
!      of a real data type with decimal precision of at least 'P' digits,
!      a decimal exponent range of at least 'R', and with the requested
!      'RADIX'.  If the 'RADIX' parameter is absent, real kinds with any
!      radix can be returned.  If more than one real data type meet the
       criteria, the kind of the data type with the smallest decimal
!      precision is returned.  If no real data type matches the criteria,
       the result is
!      -1 if the processor does not support a real data type with a
!           precision greater than or equal to 'P', but the 'R' and
!           'RADIX' requirements can be fulfilled
!      -2 if the processor does not support a real type with an exponent
!           range greater than or equal to 'R', but 'P' and 'RADIX' are
            fulfillable
!      -3 if 'RADIX' but not 'P' and 'R' requirements
            are fulfillable
!      -4 if 'RADIX' and either 'P' or 'R' requirements
            are fulfillable
!      -5 if there is no real type with the given 'RADIX'
  
  _See also_:
       *note PRECISION::, *note RANGE::, *note RADIX::
*************** _Example_:
*** 15796,15806 ****
  
  File: gfortran.info,  Node: SET_EXPONENT,  Next: SHAPE,  Prev: SELECTED_REAL_KIND,  Up: Intrinsic Procedures
  
! 9.233 `SET_EXPONENT' -- Set the exponent of the model
  =====================================================
  
  _Description_:
!      `SET_EXPONENT(X, I)' returns the real number whose fractional part
       is that that of X and whose exponent part is I.
  
  _Standard_:
--- 15628,15638 ----
  
  File: gfortran.info,  Node: SET_EXPONENT,  Next: SHAPE,  Prev: SELECTED_REAL_KIND,  Up: Intrinsic Procedures
  
! 9.233 'SET_EXPONENT' -- Set the exponent of the model
  =====================================================
  
  _Description_:
!      'SET_EXPONENT(X, I)' returns the real number whose fractional part
       is that that of X and whose exponent part is I.
  
  _Standard_:
*************** _Class_:
*** 15810,15825 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SET_EXPONENT(X, I)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
!      I          Shall be of type `INTEGER'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The real
       number whose fractional part is that that of X and whose exponent
!      part if I is returned; it is `FRACTION(X) * RADIX(X)**I'.
  
  _Example_:
            PROGRAM test_setexp
--- 15642,15657 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SET_EXPONENT(X, I)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
!      I           Shall be of type 'INTEGER'.
  
  _Return value_:
       The return value is of the same type and kind as X.  The real
       number whose fractional part is that that of X and whose exponent
!      part if I is returned; it is 'FRACTION(X) * RADIX(X)**I'.
  
  _Example_:
            PROGRAM test_setexp
*************** _Example_:
*** 15828,15838 ****
              PRINT *, SET_EXPONENT(x, i), FRACTION(x) * RADIX(x)**i
            END PROGRAM
  
- 
  
  File: gfortran.info,  Node: SHAPE,  Next: SHIFTA,  Prev: SET_EXPONENT,  Up: Intrinsic Procedures
  
! 9.234 `SHAPE' -- Determine the shape of an array
  ================================================
  
  _Description_:
--- 15660,15669 ----
              PRINT *, SET_EXPONENT(x, i), FRACTION(x) * RADIX(x)**i
            END PROGRAM
  
  
  File: gfortran.info,  Node: SHAPE,  Next: SHIFTA,  Prev: SET_EXPONENT,  Up: Intrinsic Procedures
  
! 9.234 'SHAPE' -- Determine the shape of an array
  ================================================
  
  _Description_:
*************** _Class_:
*** 15845,15867 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = SHAPE(SOURCE [, KIND])'
  
  _Arguments_:
!      SOURCE     Shall be an array or scalar of any type.  If
!                 SOURCE is a pointer it must be associated and
!                 allocatable arrays must be allocated.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      An `INTEGER' array of rank one with as many elements as SOURCE has
!      dimensions. The elements of the resulting array correspond to the
!      extend of SOURCE along the respective dimensions. If SOURCE is a
!      scalar, the result is the rank one array of size zero. If KIND is
!      absent, the return value has the default integer kind otherwise
!      the specified kind.
  
  _Example_:
            PROGRAM test_shape
--- 15676,15698 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = SHAPE(SOURCE [, KIND])'
  
  _Arguments_:
!      SOURCE      Shall be an array or scalar of any type.  If
!                  SOURCE is a pointer it must be associated and
!                  allocatable arrays must be allocated.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      An 'INTEGER' array of rank one with as many elements as SOURCE has
!      dimensions.  The elements of the resulting array correspond to the
!      extend of SOURCE along the respective dimensions.  If SOURCE is a
!      scalar, the result is the rank one array of size zero.  If KIND is
!      absent, the return value has the default integer kind otherwise the
!      specified kind.
  
  _Example_:
            PROGRAM test_shape
*************** _See also_:
*** 15876,15889 ****
  
  File: gfortran.info,  Node: SHIFTA,  Next: SHIFTL,  Prev: SHAPE,  Up: Intrinsic Procedures
  
! 9.235 `SHIFTA' -- Right shift with fill
  =======================================
  
  _Description_:
!      `SHIFTA' returns a value corresponding to I with all of the bits
       shifted right by SHIFT places.  If the absolute value of SHIFT is
!      greater than `BIT_SIZE(I)', the value is undefined.  Bits shifted
!      out from the right end are lost. The fill is arithmetic: the bits
       shifted in from the left end are equal to the leftmost bit, which
       in two's complement representation is the sign bit.
  
--- 15707,15720 ----
  
  File: gfortran.info,  Node: SHIFTA,  Next: SHIFTL,  Prev: SHAPE,  Up: Intrinsic Procedures
  
! 9.235 'SHIFTA' -- Right shift with fill
  =======================================
  
  _Description_:
!      'SHIFTA' returns a value corresponding to I with all of the bits
       shifted right by SHIFT places.  If the absolute value of SHIFT is
!      greater than 'BIT_SIZE(I)', the value is undefined.  Bits shifted
!      out from the right end are lost.  The fill is arithmetic: the bits
       shifted in from the left end are equal to the leftmost bit, which
       in two's complement representation is the sign bit.
  
*************** _Class_:
*** 15894,15907 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SHIFTA(I, SHIFT)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note SHIFTL::, *note SHIFTR::
--- 15725,15738 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SHIFTA(I, SHIFT)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note SHIFTL::, *note SHIFTR::
*************** _See also_:
*** 15909,15921 ****
  
  File: gfortran.info,  Node: SHIFTL,  Next: SHIFTR,  Prev: SHIFTA,  Up: Intrinsic Procedures
  
! 9.236 `SHIFTL' -- Left shift
  ============================
  
  _Description_:
!      `SHIFTL' returns a value corresponding to I with all of the bits
       shifted left by SHIFT places.  If the absolute value of SHIFT is
!      greater than `BIT_SIZE(I)', the value is undefined.  Bits shifted
       out from the left end are lost, and bits shifted in from the right
       end are set to 0.
  
--- 15740,15752 ----
  
  File: gfortran.info,  Node: SHIFTL,  Next: SHIFTR,  Prev: SHIFTA,  Up: Intrinsic Procedures
  
! 9.236 'SHIFTL' -- Left shift
  ============================
  
  _Description_:
!      'SHIFTL' returns a value corresponding to I with all of the bits
       shifted left by SHIFT places.  If the absolute value of SHIFT is
!      greater than 'BIT_SIZE(I)', the value is undefined.  Bits shifted
       out from the left end are lost, and bits shifted in from the right
       end are set to 0.
  
*************** _Class_:
*** 15926,15939 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SHIFTL(I, SHIFT)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note SHIFTA::, *note SHIFTR::
--- 15757,15770 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SHIFTL(I, SHIFT)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note SHIFTA::, *note SHIFTR::
*************** _See also_:
*** 15941,15953 ****
  
  File: gfortran.info,  Node: SHIFTR,  Next: SIGN,  Prev: SHIFTL,  Up: Intrinsic Procedures
  
! 9.237 `SHIFTR' -- Right shift
  =============================
  
  _Description_:
!      `SHIFTR' returns a value corresponding to I with all of the bits
       shifted right by SHIFT places.  If the absolute value of SHIFT is
!      greater than `BIT_SIZE(I)', the value is undefined.  Bits shifted
       out from the right end are lost, and bits shifted in from the left
       end are set to 0.
  
--- 15772,15784 ----
  
  File: gfortran.info,  Node: SHIFTR,  Next: SIGN,  Prev: SHIFTL,  Up: Intrinsic Procedures
  
! 9.237 'SHIFTR' -- Right shift
  =============================
  
  _Description_:
!      'SHIFTR' returns a value corresponding to I with all of the bits
       shifted right by SHIFT places.  If the absolute value of SHIFT is
!      greater than 'BIT_SIZE(I)', the value is undefined.  Bits shifted
       out from the right end are lost, and bits shifted in from the left
       end are set to 0.
  
*************** _Class_:
*** 15958,15971 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SHIFTR(I, SHIFT)'
  
  _Arguments_:
!      I          The type shall be `INTEGER'.
!      SHIFT      The type shall be `INTEGER'.
  
  _Return value_:
!      The return value is of type `INTEGER' and of the same kind as I.
  
  _See also_:
       *note SHIFTA::, *note SHIFTL::
--- 15789,15802 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SHIFTR(I, SHIFT)'
  
  _Arguments_:
!      I           The type shall be 'INTEGER'.
!      SHIFT       The type shall be 'INTEGER'.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of the same kind as I.
  
  _See also_:
       *note SHIFTA::, *note SHIFTL::
*************** _See also_:
*** 15973,15983 ****
  
  File: gfortran.info,  Node: SIGN,  Next: SIGNAL,  Prev: SHIFTR,  Up: Intrinsic Procedures
  
! 9.238 `SIGN' -- Sign copying function
  =====================================
  
  _Description_:
!      `SIGN(A,B)' returns the value of A with the sign of B.
  
  _Standard_:
       Fortran 77 and later
--- 15804,15814 ----
  
  File: gfortran.info,  Node: SIGN,  Next: SIGNAL,  Prev: SHIFTR,  Up: Intrinsic Procedures
  
! 9.238 'SIGN' -- Sign copying function
  =====================================
  
  _Description_:
!      'SIGN(A,B)' returns the value of A with the sign of B.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 15986,16000 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SIGN(A, B)'
  
  _Arguments_:
!      A          Shall be of type `INTEGER' or `REAL'
!      B          Shall be of the same type and kind as A
  
  _Return value_:
       The kind of the return value is that of A and B.  If B\ge 0 then
!      the result is `ABS(A)', else it is `-ABS(A)'.
  
  _Example_:
            program test_sign
--- 15817,15831 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SIGN(A, B)'
  
  _Arguments_:
!      A           Shall be of type 'INTEGER' or 'REAL'
!      B           Shall be of the same type and kind as A
  
  _Return value_:
       The kind of the return value is that of A and B.  If B\ge 0 then
!      the result is 'ABS(A)', else it is '-ABS(A)'.
  
  _Example_:
            program test_sign
*************** _Example_:
*** 16008,16036 ****
            end program test_sign
  
  _Specific names_:
!      Name          Arguments     Return type   Standard
!      `SIGN(A,B)'   `REAL(4) A,   `REAL(4)'     f77, gnu
!                    B'                          
!      `ISIGN(A,B)'  `INTEGER(4)   `INTEGER(4)'  f77, gnu
!                    A, B'                       
!      `DSIGN(A,B)'  `REAL(8) A,   `REAL(8)'     f77, gnu
!                    B'                          
  
  
  File: gfortran.info,  Node: SIGNAL,  Next: SIN,  Prev: SIGN,  Up: Intrinsic Procedures
  
! 9.239 `SIGNAL' -- Signal handling subroutine (or function)
  ==========================================================
  
  _Description_:
!      `SIGNAL(NUMBER, HANDLER [, STATUS])' causes external subroutine
       HANDLER to be executed with a single integer argument when signal
       NUMBER occurs.  If HANDLER is an integer, it can be used to turn
!      off handling of signal NUMBER or revert to its default action.
!      See `signal(2)'.
  
!      If `SIGNAL' is called as a subroutine and the STATUS argument is
!      supplied, it is set to the value returned by `signal(2)'.
  
  _Standard_:
       GNU extension
--- 15839,15867 ----
            end program test_sign
  
  _Specific names_:
!      Name           Arguments      Return type    Standard
!      'SIGN(A,B)'    'REAL(4) A,    'REAL(4)'      f77, gnu
!                     B'
!      'ISIGN(A,B)'   'INTEGER(4)    'INTEGER(4)'   f77, gnu
!                     A, B'
!      'DSIGN(A,B)'   'REAL(8) A,    'REAL(8)'      f77, gnu
!                     B'
  
  
  File: gfortran.info,  Node: SIGNAL,  Next: SIN,  Prev: SIGN,  Up: Intrinsic Procedures
  
! 9.239 'SIGNAL' -- Signal handling subroutine (or function)
  ==========================================================
  
  _Description_:
!      'SIGNAL(NUMBER, HANDLER [, STATUS])' causes external subroutine
       HANDLER to be executed with a single integer argument when signal
       NUMBER occurs.  If HANDLER is an integer, it can be used to turn
!      off handling of signal NUMBER or revert to its default action.  See
!      'signal(2)'.
  
!      If 'SIGNAL' is called as a subroutine and the STATUS argument is
!      supplied, it is set to the value returned by 'signal(2)'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 16039,16057 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL SIGNAL(NUMBER, HANDLER [, STATUS])'
!      `STATUS = SIGNAL(NUMBER, HANDLER)'
  
  _Arguments_:
!      NUMBER     Shall be a scalar integer, with `INTENT(IN)'
!      HANDLER    Signal handler (`INTEGER FUNCTION' or
!                 `SUBROUTINE') or dummy/global `INTEGER' scalar.
!                 `INTEGER'. It is `INTENT(IN)'.
!      STATUS     (Optional) STATUS shall be a scalar integer.
!                 It has `INTENT(OUT)'.
  
  _Return value_:
!      The `SIGNAL' function returns the value returned by `signal(2)'.
  
  _Example_:
            program test_signal
--- 15870,15888 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL SIGNAL(NUMBER, HANDLER [, STATUS])'
!      'STATUS = SIGNAL(NUMBER, HANDLER)'
  
  _Arguments_:
!      NUMBER      Shall be a scalar integer, with 'INTENT(IN)'
!      HANDLER     Signal handler ('INTEGER FUNCTION' or
!                  'SUBROUTINE') or dummy/global 'INTEGER' scalar.
!                  'INTEGER'.  It is 'INTENT(IN)'.
!      STATUS      (Optional) STATUS shall be a scalar integer.  It
!                  has 'INTENT(OUT)'.
  
  _Return value_:
!      The 'SIGNAL' function returns the value returned by 'signal(2)'.
  
  _Example_:
            program test_signal
*************** _Example_:
*** 16067,16077 ****
  
  File: gfortran.info,  Node: SIN,  Next: SINH,  Prev: SIGNAL,  Up: Intrinsic Procedures
  
! 9.240 `SIN' -- Sine function
  ============================
  
  _Description_:
!      `SIN(X)' computes the sine of X.
  
  _Standard_:
       Fortran 77 and later
--- 15898,15908 ----
  
  File: gfortran.info,  Node: SIN,  Next: SINH,  Prev: SIGNAL,  Up: Intrinsic Procedures
  
! 9.240 'SIN' -- Sine function
  ============================
  
  _Description_:
!      'SIN(X)' computes the sine of X.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 16080,16089 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SIN(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
--- 15911,15920 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SIN(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
*************** _Example_:
*** 16095,16109 ****
            end program test_sin
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `SIN(X)'      `REAL(4) X'   `REAL(4)'     f77, gnu
!      `DSIN(X)'     `REAL(8) X'   `REAL(8)'     f95, gnu
!      `CSIN(X)'     `COMPLEX(4)   `COMPLEX(4)'  f95, gnu
!                    X'                          
!      `ZSIN(X)'     `COMPLEX(8)   `COMPLEX(8)'  f95, gnu
!                    X'                          
!      `CDSIN(X)'    `COMPLEX(8)   `COMPLEX(8)'  f95, gnu
!                    X'                          
  
  _See also_:
       *note ASIN::
--- 15926,15940 ----
            end program test_sin
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'SIN(X)'       'REAL(4) X'    'REAL(4)'      f77, gnu
!      'DSIN(X)'      'REAL(8) X'    'REAL(8)'      f95, gnu
!      'CSIN(X)'      'COMPLEX(4)    'COMPLEX(4)'   f95, gnu
!                     X'
!      'ZSIN(X)'      'COMPLEX(8)    'COMPLEX(8)'   f95, gnu
!                     X'
!      'CDSIN(X)'     'COMPLEX(8)    'COMPLEX(8)'   f95, gnu
!                     X'
  
  _See also_:
       *note ASIN::
*************** _See also_:
*** 16111,16121 ****
  
  File: gfortran.info,  Node: SINH,  Next: SIZE,  Prev: SIN,  Up: Intrinsic Procedures
  
! 9.241 `SINH' -- Hyperbolic sine function
  ========================================
  
  _Description_:
!      `SINH(X)' computes the hyperbolic sine of X.
  
  _Standard_:
       Fortran 95 and later, for a complex argument Fortran 2008 or later
--- 15942,15952 ----
  
  File: gfortran.info,  Node: SINH,  Next: SIZE,  Prev: SIN,  Up: Intrinsic Procedures
  
! 9.241 'SINH' -- Hyperbolic sine function
  ========================================
  
  _Description_:
!      'SINH(X)' computes the hyperbolic sine of X.
  
  _Standard_:
       Fortran 95 and later, for a complex argument Fortran 2008 or later
*************** _Class_:
*** 16124,16133 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SINH(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
--- 15955,15964 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SINH(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
*************** _Example_:
*** 16139,16149 ****
            end program test_sinh
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `SINH(X)'     `REAL(4) X'   `REAL(4)'     Fortran 95 and
!                                                later
!      `DSINH(X)'    `REAL(8) X'   `REAL(8)'     Fortran 95 and
!                                                later
  
  _See also_:
       *note ASINH::
--- 15970,15980 ----
            end program test_sinh
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'SINH(X)'      'REAL(4) X'    'REAL(4)'      Fortran 95 and
!                                                   later
!      'DSINH(X)'     'REAL(8) X'    'REAL(8)'      Fortran 95 and
!                                                   later
  
  _See also_:
       *note ASINH::
*************** _See also_:
*** 16151,16157 ****
  
  File: gfortran.info,  Node: SIZE,  Next: SIZEOF,  Prev: SINH,  Up: Intrinsic Procedures
  
! 9.242 `SIZE' -- Determine the size of an array
  ==============================================
  
  _Description_:
--- 15982,15988 ----
  
  File: gfortran.info,  Node: SIZE,  Next: SIZEOF,  Prev: SINH,  Up: Intrinsic Procedures
  
! 9.242 'SIZE' -- Determine the size of an array
  ==============================================
  
  _Description_:
*************** _Class_:
*** 16165,16185 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = SIZE(ARRAY[, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY      Shall be an array of any type. If ARRAY is a
!                 pointer it must be associated and allocatable
!                 arrays must be allocated.
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 and its value shall be in the range from 1 to
!                 n, where n equals the rank of ARRAY.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
--- 15996,16016 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = SIZE(ARRAY[, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY       Shall be an array of any type.  If ARRAY is a
!                  pointer it must be associated and allocatable
!                  arrays must be allocated.
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  and its value shall be in the range from 1 to n,
!                  where n equals the rank of ARRAY.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
*************** _See also_:
*** 16193,16204 ****
  
  File: gfortran.info,  Node: SIZEOF,  Next: SLEEP,  Prev: SIZE,  Up: Intrinsic Procedures
  
! 9.243 `SIZEOF' -- Size in bytes of an expression
  ================================================
  
  _Description_:
!      `SIZEOF(X)' calculates the number of bytes of storage the
!      expression `X' occupies.
  
  _Standard_:
       GNU extension
--- 16024,16035 ----
  
  File: gfortran.info,  Node: SIZEOF,  Next: SLEEP,  Prev: SIZE,  Up: Intrinsic Procedures
  
! 9.243 'SIZEOF' -- Size in bytes of an expression
  ================================================
  
  _Description_:
!      'SIZEOF(X)' calculates the number of bytes of storage the
!      expression 'X' occupies.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 16207,16229 ****
       Inquiry function
  
  _Syntax_:
!      `N = SIZEOF(X)'
  
  _Arguments_:
!      X          The argument shall be of any type, rank or
!                 shape.
  
  _Return value_:
       The return value is of type integer and of the system-dependent
!      kind C_SIZE_T (from the ISO_C_BINDING module). Its value is the
       number of bytes occupied by the argument.  If the argument has the
!      `POINTER' attribute, the number of bytes of the storage area
       pointed to is returned.  If the argument is of a derived type with
!      `POINTER' or `ALLOCATABLE' components, the return value does not
       account for the sizes of the data pointed to by these components.
       If the argument is polymorphic, the size according to the dynamic
!      type is returned. The argument may not be a procedure or procedure
!      pointer. Note that the code assumes for arrays that those are
       contiguous; for contiguous arrays, it returns the storage or an
       array element multiplied by the size of the array.
  
--- 16038,16060 ----
       Inquiry function
  
  _Syntax_:
!      'N = SIZEOF(X)'
  
  _Arguments_:
!      X           The argument shall be of any type, rank or
!                  shape.
  
  _Return value_:
       The return value is of type integer and of the system-dependent
!      kind C_SIZE_T (from the ISO_C_BINDING module).  Its value is the
       number of bytes occupied by the argument.  If the argument has the
!      'POINTER' attribute, the number of bytes of the storage area
       pointed to is returned.  If the argument is of a derived type with
!      'POINTER' or 'ALLOCATABLE' components, the return value does not
       account for the sizes of the data pointed to by these components.
       If the argument is polymorphic, the size according to the dynamic
!      type is returned.  The argument may not be a procedure or procedure
!      pointer.  Note that the code assumes for arrays that those are
       contiguous; for contiguous arrays, it returns the storage or an
       array element multiplied by the size of the array.
  
*************** _Example_:
*** 16232,16239 ****
               real :: r, s(5)
               print *, (sizeof(s)/sizeof(r) == 5)
               end
!      The example will print `.TRUE.' unless you are using a platform
!      where default `REAL' variables are unusually padded.
  
  _See also_:
       *note C_SIZEOF::, *note STORAGE_SIZE::
--- 16063,16070 ----
               real :: r, s(5)
               print *, (sizeof(s)/sizeof(r) == 5)
               end
!      The example will print '.TRUE.' unless you are using a platform
!      where default 'REAL' variables are unusually padded.
  
  _See also_:
       *note C_SIZEOF::, *note STORAGE_SIZE::
*************** _See also_:
*** 16241,16247 ****
  
  File: gfortran.info,  Node: SLEEP,  Next: SPACING,  Prev: SIZEOF,  Up: Intrinsic Procedures
  
! 9.244 `SLEEP' -- Sleep for the specified number of seconds
  ==========================================================
  
  _Description_:
--- 16072,16078 ----
  
  File: gfortran.info,  Node: SLEEP,  Next: SPACING,  Prev: SIZEOF,  Up: Intrinsic Procedures
  
! 9.244 'SLEEP' -- Sleep for the specified number of seconds
  ==========================================================
  
  _Description_:
*************** _Class_:
*** 16255,16264 ****
       Subroutine
  
  _Syntax_:
!      `CALL SLEEP(SECONDS)'
  
  _Arguments_:
!      SECONDS    The type shall be of default `INTEGER'.
  
  _Example_:
            program test_sleep
--- 16086,16095 ----
       Subroutine
  
  _Syntax_:
!      'CALL SLEEP(SECONDS)'
  
  _Arguments_:
!      SECONDS     The type shall be of default 'INTEGER'.
  
  _Example_:
            program test_sleep
*************** _Example_:
*** 16268,16274 ****
  
  File: gfortran.info,  Node: SPACING,  Next: SPREAD,  Prev: SLEEP,  Up: Intrinsic Procedures
  
! 9.245 `SPACING' -- Smallest distance between two numbers of a given type
  ========================================================================
  
  _Description_:
--- 16099,16105 ----
  
  File: gfortran.info,  Node: SPACING,  Next: SPREAD,  Prev: SLEEP,  Up: Intrinsic Procedures
  
! 9.245 'SPACING' -- Smallest distance between two numbers of a given type
  ========================================================================
  
  _Description_:
*************** _Class_:
*** 16282,16291 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SPACING(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
  
  _Return value_:
       The result is of the same type as the input argument X.
--- 16113,16122 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SPACING(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
  
  _Return value_:
       The result is of the same type as the input argument X.
*************** _See also_:
*** 16305,16316 ****
  
  File: gfortran.info,  Node: SPREAD,  Next: SQRT,  Prev: SPACING,  Up: Intrinsic Procedures
  
! 9.246 `SPREAD' -- Add a dimension to an array
  =============================================
  
  _Description_:
!      Replicates a SOURCE array NCOPIES times along a specified
!      dimension DIM.
  
  _Standard_:
       Fortran 95 and later
--- 16136,16147 ----
  
  File: gfortran.info,  Node: SPREAD,  Next: SQRT,  Prev: SPACING,  Up: Intrinsic Procedures
  
! 9.246 'SPREAD' -- Add a dimension to an array
  =============================================
  
  _Description_:
!      Replicates a SOURCE array NCOPIES times along a specified dimension
!      DIM.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 16319,16333 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = SPREAD(SOURCE, DIM, NCOPIES)'
  
  _Arguments_:
!      SOURCE     Shall be a scalar or an array of any type and
!                 a rank less than seven.
!      DIM        Shall be a scalar of type `INTEGER' with a
!                 value in the range from 1 to n+1, where n
!                 equals the rank of SOURCE.
!      NCOPIES    Shall be a scalar of type `INTEGER'.
  
  _Return value_:
       The result is an array of the same type as SOURCE and has rank n+1
--- 16150,16164 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = SPREAD(SOURCE, DIM, NCOPIES)'
  
  _Arguments_:
!      SOURCE      Shall be a scalar or an array of any type and a
!                  rank less than seven.
!      DIM         Shall be a scalar of type 'INTEGER' with a value
!                  in the range from 1 to n+1, where n equals the
!                  rank of SOURCE.
!      NCOPIES     Shall be a scalar of type 'INTEGER'.
  
  _Return value_:
       The result is an array of the same type as SOURCE and has rank n+1
*************** _See also_:
*** 16346,16356 ****
  
  File: gfortran.info,  Node: SQRT,  Next: SRAND,  Prev: SPREAD,  Up: Intrinsic Procedures
  
! 9.247 `SQRT' -- Square-root function
  ====================================
  
  _Description_:
!      `SQRT(X)' computes the square root of X.
  
  _Standard_:
       Fortran 77 and later
--- 16177,16187 ----
  
  File: gfortran.info,  Node: SQRT,  Next: SRAND,  Prev: SPREAD,  Up: Intrinsic Procedures
  
! 9.247 'SQRT' -- Square-root function
  ====================================
  
  _Description_:
!      'SQRT(X)' computes the square root of X.
  
  _Standard_:
       Fortran 77 and later
*************** _Class_:
*** 16359,16371 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = SQRT(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value is of type `REAL' or `COMPLEX'.  The kind type
       parameter is the same as X.
  
  _Example_:
--- 16190,16202 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = SQRT(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value is of type 'REAL' or 'COMPLEX'.  The kind type
       parameter is the same as X.
  
  _Example_:
*************** _Example_:
*** 16377,16403 ****
            end program test_sqrt
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `SQRT(X)'     `REAL(4) X'   `REAL(4)'     Fortran 95 and
!                                                later
!      `DSQRT(X)'    `REAL(8) X'   `REAL(8)'     Fortran 95 and
!                                                later
!      `CSQRT(X)'    `COMPLEX(4)   `COMPLEX(4)'  Fortran 95 and
!                    X'                          later
!      `ZSQRT(X)'    `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    X'                          
!      `CDSQRT(X)'   `COMPLEX(8)   `COMPLEX(8)'  GNU extension
!                    X'                          
  
  
  File: gfortran.info,  Node: SRAND,  Next: STAT,  Prev: SQRT,  Up: Intrinsic Procedures
  
! 9.248 `SRAND' -- Reinitialize the random number generator
  =========================================================
  
  _Description_:
!      `SRAND' reinitializes the pseudo-random number generator called by
!      `RAND' and `IRAND'. The new seed used by the generator is
       specified by the required argument SEED.
  
  _Standard_:
--- 16208,16234 ----
            end program test_sqrt
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'SQRT(X)'      'REAL(4) X'    'REAL(4)'      Fortran 95 and
!                                                   later
!      'DSQRT(X)'     'REAL(8) X'    'REAL(8)'      Fortran 95 and
!                                                   later
!      'CSQRT(X)'     'COMPLEX(4)    'COMPLEX(4)'   Fortran 95 and
!                     X'                            later
!      'ZSQRT(X)'     'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     X'
!      'CDSQRT(X)'    'COMPLEX(8)    'COMPLEX(8)'   GNU extension
!                     X'
  
  
  File: gfortran.info,  Node: SRAND,  Next: STAT,  Prev: SQRT,  Up: Intrinsic Procedures
  
! 9.248 'SRAND' -- Reinitialize the random number generator
  =========================================================
  
  _Description_:
!      'SRAND' reinitializes the pseudo-random number generator called by
!      'RAND' and 'IRAND'.  The new seed used by the generator is
       specified by the required argument SEED.
  
  _Standard_:
*************** _Class_:
*** 16407,16465 ****
       Subroutine
  
  _Syntax_:
!      `CALL SRAND(SEED)'
  
  _Arguments_:
!      SEED       Shall be a scalar `INTEGER(kind=4)'.
  
  _Return value_:
       Does not return anything.
  
  _Example_:
!      See `RAND' and `IRAND' for examples.
  
  _Notes_:
       The Fortran standard specifies the intrinsic subroutines
!      `RANDOM_SEED' to initialize the pseudo-random number generator and
!      `RANDOM_NUMBER' to generate pseudo-random numbers.  These
       subroutines should be used in new codes.
  
       Please note that in GNU Fortran, these two sets of intrinsics
!      (`RAND', `IRAND' and `SRAND' on the one hand, `RANDOM_NUMBER' and
!      `RANDOM_SEED' on the other hand) access two independent
       pseudo-random number generators.
  
  _See also_:
       *note RAND::, *note RANDOM_SEED::, *note RANDOM_NUMBER::
  
- 
  
  File: gfortran.info,  Node: STAT,  Next: STORAGE_SIZE,  Prev: SRAND,  Up: Intrinsic Procedures
  
! 9.249 `STAT' -- Get file status
  ===============================
  
  _Description_:
!      This function returns information about a file. No permissions are
       required on the file itself, but execute (search) permission is
       required on all of the directories in path that lead to the file.
  
!      The elements that are obtained and stored in the array `VALUES':
!      `VALUES(1)'Device ID
!      `VALUES(2)'Inode number
!      `VALUES(3)'File mode
!      `VALUES(4)'Number of links
!      `VALUES(5)'Owner's uid
!      `VALUES(6)'Owner's gid
!      `VALUES(7)'ID of device containing directory entry for
!                 file (0 if not available)
!      `VALUES(8)'File size (bytes)
!      `VALUES(9)'Last access time
!      `VALUES(10)'Last modification time
!      `VALUES(11)'Last file status change time
!      `VALUES(12)'Preferred I/O block size (-1 if not available)
!      `VALUES(13)'Number of blocks allocated (-1 if not
!                 available)
  
       Not all these elements are relevant on all systems.  If an element
       is not relevant, it is returned as 0.
--- 16238,16294 ----
       Subroutine
  
  _Syntax_:
!      'CALL SRAND(SEED)'
  
  _Arguments_:
!      SEED        Shall be a scalar 'INTEGER(kind=4)'.
  
  _Return value_:
       Does not return anything.
  
  _Example_:
!      See 'RAND' and 'IRAND' for examples.
  
  _Notes_:
       The Fortran standard specifies the intrinsic subroutines
!      'RANDOM_SEED' to initialize the pseudo-random number generator and
!      'RANDOM_NUMBER' to generate pseudo-random numbers.  These
       subroutines should be used in new codes.
  
       Please note that in GNU Fortran, these two sets of intrinsics
!      ('RAND', 'IRAND' and 'SRAND' on the one hand, 'RANDOM_NUMBER' and
!      'RANDOM_SEED' on the other hand) access two independent
       pseudo-random number generators.
  
  _See also_:
       *note RAND::, *note RANDOM_SEED::, *note RANDOM_NUMBER::
  
  
  File: gfortran.info,  Node: STAT,  Next: STORAGE_SIZE,  Prev: SRAND,  Up: Intrinsic Procedures
  
! 9.249 'STAT' -- Get file status
  ===============================
  
  _Description_:
!      This function returns information about a file.  No permissions are
       required on the file itself, but execute (search) permission is
       required on all of the directories in path that lead to the file.
  
!      The elements that are obtained and stored in the array 'VALUES':
!      'VALUES(1)' Device ID
!      'VALUES(2)' Inode number
!      'VALUES(3)' File mode
!      'VALUES(4)' Number of links
!      'VALUES(5)' Owner's uid
!      'VALUES(6)' Owner's gid
!      'VALUES(7)' ID of device containing directory entry for file
!                  (0 if not available)
!      'VALUES(8)' File size (bytes)
!      'VALUES(9)' Last access time
!      'VALUES(10)'Last modification time
!      'VALUES(11)'Last file status change time
!      'VALUES(12)'Preferred I/O block size (-1 if not available)
!      'VALUES(13)'Number of blocks allocated (-1 if not available)
  
       Not all these elements are relevant on all systems.  If an element
       is not relevant, it is returned as 0.
*************** _Class_:
*** 16474,16489 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL STAT(NAME, VALUES [, STATUS])'
!      `STATUS = STAT(NAME, VALUES)'
  
  _Arguments_:
!      NAME       The type shall be `CHARACTER', of the default
!                 kind and a valid path within the file system.
!      VALUES     The type shall be `INTEGER(4), DIMENSION(13)'.
!      STATUS     (Optional) status flag of type `INTEGER(4)'.
!                 Returns 0 on success and a system specific
!                 error code otherwise.
  
  _Example_:
            PROGRAM test_stat
--- 16303,16318 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL STAT(NAME, VALUES [, STATUS])'
!      'STATUS = STAT(NAME, VALUES)'
  
  _Arguments_:
!      NAME        The type shall be 'CHARACTER', of the default
!                  kind and a valid path within the file system.
!      VALUES      The type shall be 'INTEGER(4), DIMENSION(13)'.
!      STATUS      (Optional) status flag of type 'INTEGER(4)'.
!                  Returns 0 on success and a system specific error
!                  code otherwise.
  
  _Example_:
            PROGRAM test_stat
*************** _See also_:
*** 16515,16545 ****
  
  File: gfortran.info,  Node: STORAGE_SIZE,  Next: SUM,  Prev: STAT,  Up: Intrinsic Procedures
  
! 9.250 `STORAGE_SIZE' -- Storage size in bits
  ============================================
  
  _Description_:
       Returns the storage size of argument A in bits.
- 
  _Standard_:
       Fortran 2008 and later
- 
  _Class_:
       Inquiry function
- 
  _Syntax_:
!      `RESULT = STORAGE_SIZE(A [, KIND])'
  
  _Arguments_:
!      A          Shall be a scalar or array of any type.
!      KIND       (Optional) shall be a scalar integer constant
!                 expression.
  
  _Return Value_:
       The result is a scalar integer with the kind type parameter
       specified by KIND (or default integer type if KIND is missing).
!      The result value is the size expressed in bits for an element of
!      an array that has the dynamic type and type parameters of A.
  
  _See also_:
       *note C_SIZEOF::, *note SIZEOF::
--- 16344,16371 ----
  
  File: gfortran.info,  Node: STORAGE_SIZE,  Next: SUM,  Prev: STAT,  Up: Intrinsic Procedures
  
! 9.250 'STORAGE_SIZE' -- Storage size in bits
  ============================================
  
  _Description_:
       Returns the storage size of argument A in bits.
  _Standard_:
       Fortran 2008 and later
  _Class_:
       Inquiry function
  _Syntax_:
!      'RESULT = STORAGE_SIZE(A [, KIND])'
  
  _Arguments_:
!      A           Shall be a scalar or array of any type.
!      KIND        (Optional) shall be a scalar integer constant
!                  expression.
  
  _Return Value_:
       The result is a scalar integer with the kind type parameter
       specified by KIND (or default integer type if KIND is missing).
!      The result value is the size expressed in bits for an element of an
!      array that has the dynamic type and type parameters of A.
  
  _See also_:
       *note C_SIZEOF::, *note SIZEOF::
*************** _See also_:
*** 16547,16558 ****
  
  File: gfortran.info,  Node: SUM,  Next: SYMLNK,  Prev: STORAGE_SIZE,  Up: Intrinsic Procedures
  
! 9.251 `SUM' -- Sum of array elements
  ====================================
  
  _Description_:
!      Adds the elements of ARRAY along dimension DIM if the
!      corresponding element in MASK is `TRUE'.
  
  _Standard_:
       Fortran 95 and later
--- 16373,16384 ----
  
  File: gfortran.info,  Node: SUM,  Next: SYMLNK,  Prev: STORAGE_SIZE,  Up: Intrinsic Procedures
  
! 9.251 'SUM' -- Sum of array elements
  ====================================
  
  _Description_:
!      Adds the elements of ARRAY along dimension DIM if the corresponding
!      element in MASK is 'TRUE'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 16561,16586 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = SUM(ARRAY[, MASK])'
!      `RESULT = SUM(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY      Shall be an array of type `INTEGER', `REAL' or
!                 `COMPLEX'.
!      DIM        (Optional) shall be a scalar of type `INTEGER'
!                 with a value in the range from 1 to n, where n
!                 equals the rank of ARRAY.
!      MASK       (Optional) shall be of type `LOGICAL' and
!                 either be a scalar or an array of the same
!                 shape as ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
!      If DIM is absent, a scalar with the sum of all elements in ARRAY
!      is returned. Otherwise, an array of rank n-1, where n equals the
!      rank of ARRAY, and a shape similar to that of ARRAY with dimension
!      DIM dropped is returned.
  
  _Example_:
            PROGRAM test_sum
--- 16387,16412 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = SUM(ARRAY[, MASK])'
!      'RESULT = SUM(ARRAY, DIM[, MASK])'
  
  _Arguments_:
!      ARRAY       Shall be an array of type 'INTEGER', 'REAL' or
!                  'COMPLEX'.
!      DIM         (Optional) shall be a scalar of type 'INTEGER'
!                  with a value in the range from 1 to n, where n
!                  equals the rank of ARRAY.
!      MASK        (Optional) shall be of type 'LOGICAL' and either
!                  be a scalar or an array of the same shape as
!                  ARRAY.
  
  _Return value_:
       The result is of the same type as ARRAY.
  
!      If DIM is absent, a scalar with the sum of all elements in ARRAY is
!      returned.  Otherwise, an array of rank n-1, where n equals the rank
!      of ARRAY, and a shape similar to that of ARRAY with dimension DIM
!      dropped is returned.
  
  _Example_:
            PROGRAM test_sum
*************** _See also_:
*** 16595,16610 ****
  
  File: gfortran.info,  Node: SYMLNK,  Next: SYSTEM,  Prev: SUM,  Up: Intrinsic Procedures
  
! 9.252 `SYMLNK' -- Create a symbolic link
  ========================================
  
  _Description_:
!      Makes a symbolic link from file PATH1 to PATH2. A null character
!      (`CHAR(0)') can be used to mark the end of the names in PATH1 and
       PATH2; otherwise, trailing blanks in the file names are ignored.
       If the STATUS argument is supplied, it contains 0 on success or a
!      nonzero error code upon return; see `symlink(2)'.  If the system
!      does not supply `symlink(2)', `ENOSYS' is returned.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 16421,16436 ----
  
  File: gfortran.info,  Node: SYMLNK,  Next: SYSTEM,  Prev: SUM,  Up: Intrinsic Procedures
  
! 9.252 'SYMLNK' -- Create a symbolic link
  ========================================
  
  _Description_:
!      Makes a symbolic link from file PATH1 to PATH2.  A null character
!      ('CHAR(0)') can be used to mark the end of the names in PATH1 and
       PATH2; otherwise, trailing blanks in the file names are ignored.
       If the STATUS argument is supplied, it contains 0 on success or a
!      nonzero error code upon return; see 'symlink(2)'.  If the system
!      does not supply 'symlink(2)', 'ENOSYS' is returned.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 16616,16651 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL SYMLNK(PATH1, PATH2 [, STATUS])'
!      `STATUS = SYMLNK(PATH1, PATH2)'
  
  _Arguments_:
!      PATH1      Shall be of default `CHARACTER' type.
!      PATH2      Shall be of default `CHARACTER' type.
!      STATUS     (Optional) Shall be of default `INTEGER' type.
  
  _See also_:
       *note LINK::, *note UNLINK::
  
- 
  
  File: gfortran.info,  Node: SYSTEM,  Next: SYSTEM_CLOCK,  Prev: SYMLNK,  Up: Intrinsic Procedures
  
! 9.253 `SYSTEM' -- Execute a shell command
  =========================================
  
  _Description_:
!      Passes the command COMMAND to a shell (see `system(3)'). If
       argument STATUS is present, it contains the value returned by
!      `system(3)', which is presumably 0 if the shell command succeeded.
       Note that which shell is used to invoke the command is
       system-dependent and environment-dependent.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the `system' function need not be thread-safe. It is the
!      responsibility of the user to ensure that `system' is not called
       concurrently.
  
  _Standard_:
--- 16442,16476 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL SYMLNK(PATH1, PATH2 [, STATUS])'
!      'STATUS = SYMLNK(PATH1, PATH2)'
  
  _Arguments_:
!      PATH1       Shall be of default 'CHARACTER' type.
!      PATH2       Shall be of default 'CHARACTER' type.
!      STATUS      (Optional) Shall be of default 'INTEGER' type.
  
  _See also_:
       *note LINK::, *note UNLINK::
  
  
  File: gfortran.info,  Node: SYSTEM,  Next: SYSTEM_CLOCK,  Prev: SYMLNK,  Up: Intrinsic Procedures
  
! 9.253 'SYSTEM' -- Execute a shell command
  =========================================
  
  _Description_:
!      Passes the command COMMAND to a shell (see 'system(3)').  If
       argument STATUS is present, it contains the value returned by
!      'system(3)', which is presumably 0 if the shell command succeeded.
       Note that which shell is used to invoke the command is
       system-dependent and environment-dependent.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
  
!      Note that the 'system' function need not be thread-safe.  It is the
!      responsibility of the user to ensure that 'system' is not called
       concurrently.
  
  _Standard_:
*************** _Class_:
*** 16655,16666 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL SYSTEM(COMMAND [, STATUS])'
!      `STATUS = SYSTEM(COMMAND)'
  
  _Arguments_:
!      COMMAND    Shall be of default `CHARACTER' type.
!      STATUS     (Optional) Shall be of default `INTEGER' type.
  
  _See also_:
       *note EXECUTE_COMMAND_LINE::, which is part of the Fortran 2008
--- 16480,16491 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL SYSTEM(COMMAND [, STATUS])'
!      'STATUS = SYSTEM(COMMAND)'
  
  _Arguments_:
!      COMMAND     Shall be of default 'CHARACTER' type.
!      STATUS      (Optional) Shall be of default 'INTEGER' type.
  
  _See also_:
       *note EXECUTE_COMMAND_LINE::, which is part of the Fortran 2008
*************** _See also_:
*** 16669,16710 ****
  
  File: gfortran.info,  Node: SYSTEM_CLOCK,  Next: TAN,  Prev: SYSTEM,  Up: Intrinsic Procedures
  
! 9.254 `SYSTEM_CLOCK' -- Time function
  =====================================
  
  _Description_:
!      Determines the COUNT of a processor clock since an unspecified
!      time in the past modulo COUNT_MAX, COUNT_RATE determines the
!      number of clock ticks per second.  If the platform supports a
!      monotonic clock, that clock is used and can, depending on the
!      platform clock implementation, provide up to nanosecond
!      resolution.  If a monotonic clock is not available, the
!      implementation falls back to a realtime clock.
  
       COUNT_RATE is system dependent and can vary depending on the kind
!      of the arguments. For KIND=4 arguments (and smaller integer kinds),
!      COUNT represents milliseconds, while for KIND=8 arguments (and
!      larger integer kinds), COUNT typically represents micro- or
       nanoseconds depending on resolution of the underlying platform
!      clock.  COUNT_MAX usually equals `HUGE(COUNT_MAX)'. Note that the
!      millisecond resolution of the KIND=4 version implies that the
!      COUNT will wrap around in roughly 25 days. In order to avoid issues
!      with the wrap around and for more precise timing, please use the
!      KIND=8 version.
  
       If there is no clock, or querying the clock fails, COUNT is set to
!      `-HUGE(COUNT)', and COUNT_RATE and COUNT_MAX are set to zero.
  
       When running on a platform using the GNU C library (glibc) version
       2.16 or older, or a derivative thereof, the high resolution
!      monotonic clock is available only when linking with the RT
!      library.  This can be done explicitly by adding the `-lrt' flag
!      when linking the application, but is also done implicitly when
!      using OpenMP.
  
!      On the Windows platform, the version with KIND=4 arguments uses
!      the `GetTickCount' function, whereas the KIND=8 version uses
!      `QueryPerformanceCounter' and `QueryPerformanceCounterFrequency'.
       For more information, and potential caveats, please see the
       platform documentation.
  
--- 16494,16534 ----
  
  File: gfortran.info,  Node: SYSTEM_CLOCK,  Next: TAN,  Prev: SYSTEM,  Up: Intrinsic Procedures
  
! 9.254 'SYSTEM_CLOCK' -- Time function
  =====================================
  
  _Description_:
!      Determines the COUNT of a processor clock since an unspecified time
!      in the past modulo COUNT_MAX, COUNT_RATE determines the number of
!      clock ticks per second.  If the platform supports a monotonic
!      clock, that clock is used and can, depending on the platform clock
!      implementation, provide up to nanosecond resolution.  If a
!      monotonic clock is not available, the implementation falls back to
!      a realtime clock.
  
       COUNT_RATE is system dependent and can vary depending on the kind
!      of the arguments.  For KIND=4 arguments (and smaller integer
!      kinds), COUNT represents milliseconds, while for KIND=8 arguments
!      (and larger integer kinds), COUNT typically represents micro- or
       nanoseconds depending on resolution of the underlying platform
!      clock.  COUNT_MAX usually equals 'HUGE(COUNT_MAX)'.  Note that the
!      millisecond resolution of the KIND=4 version implies that the COUNT
!      will wrap around in roughly 25 days.  In order to avoid issues with
!      the wrap around and for more precise timing, please use the KIND=8
!      version.
  
       If there is no clock, or querying the clock fails, COUNT is set to
!      '-HUGE(COUNT)', and COUNT_RATE and COUNT_MAX are set to zero.
  
       When running on a platform using the GNU C library (glibc) version
       2.16 or older, or a derivative thereof, the high resolution
!      monotonic clock is available only when linking with the RT library.
!      This can be done explicitly by adding the '-lrt' flag when linking
!      the application, but is also done implicitly when using OpenMP.
  
!      On the Windows platform, the version with KIND=4 arguments uses the
!      'GetTickCount' function, whereas the KIND=8 version uses
!      'QueryPerformanceCounter' and 'QueryPerformanceCounterFrequency'.
       For more information, and potential caveats, please see the
       platform documentation.
  
*************** _Class_:
*** 16715,16729 ****
       Subroutine
  
  _Syntax_:
!      `CALL SYSTEM_CLOCK([COUNT, COUNT_RATE, COUNT_MAX])'
  
  _Arguments_:
!      COUNT      (Optional) shall be a scalar of type `INTEGER'
!                 with `INTENT(OUT)'.
!      COUNT_RATE (Optional) shall be a scalar of type `INTEGER'
!                 or `REAL', with `INTENT(OUT)'.
!      COUNT_MAX  (Optional) shall be a scalar of type `INTEGER'
!                 with `INTENT(OUT)'.
  
  _Example_:
            PROGRAM test_system_clock
--- 16539,16553 ----
       Subroutine
  
  _Syntax_:
!      'CALL SYSTEM_CLOCK([COUNT, COUNT_RATE, COUNT_MAX])'
  
  _Arguments_:
!      COUNT       (Optional) shall be a scalar of type 'INTEGER'
!                  with 'INTENT(OUT)'.
!      COUNT_RATE  (Optional) shall be a scalar of type 'INTEGER'
!                  or 'REAL', with 'INTENT(OUT)'.
!      COUNT_MAX   (Optional) shall be a scalar of type 'INTEGER'
!                  with 'INTENT(OUT)'.
  
  _Example_:
            PROGRAM test_system_clock
*************** _See also_:
*** 16738,16748 ****
  
  File: gfortran.info,  Node: TAN,  Next: TANH,  Prev: SYSTEM_CLOCK,  Up: Intrinsic Procedures
  
! 9.255 `TAN' -- Tangent function
  ===============================
  
  _Description_:
!      `TAN(X)' computes the tangent of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
--- 16562,16572 ----
  
  File: gfortran.info,  Node: TAN,  Next: TANH,  Prev: SYSTEM_CLOCK,  Up: Intrinsic Procedures
  
! 9.255 'TAN' -- Tangent function
  ===============================
  
  _Description_:
!      'TAN(X)' computes the tangent of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
*************** _Class_:
*** 16751,16760 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = TAN(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
--- 16575,16584 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = TAN(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
       The return value has same type and kind as X.
*************** _Example_:
*** 16766,16776 ****
            end program test_tan
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `TAN(X)'      `REAL(4) X'   `REAL(4)'     Fortran 95 and
!                                                later
!      `DTAN(X)'     `REAL(8) X'   `REAL(8)'     Fortran 95 and
!                                                later
  
  _See also_:
       *note ATAN::
--- 16590,16600 ----
            end program test_tan
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'TAN(X)'       'REAL(4) X'    'REAL(4)'      Fortran 95 and
!                                                   later
!      'DTAN(X)'      'REAL(8) X'    'REAL(8)'      Fortran 95 and
!                                                   later
  
  _See also_:
       *note ATAN::
*************** _See also_:
*** 16778,16788 ****
  
  File: gfortran.info,  Node: TANH,  Next: THIS_IMAGE,  Prev: TAN,  Up: Intrinsic Procedures
  
! 9.256 `TANH' -- Hyperbolic tangent function
  ===========================================
  
  _Description_:
!      `TANH(X)' computes the hyperbolic tangent of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
--- 16602,16612 ----
  
  File: gfortran.info,  Node: TANH,  Next: THIS_IMAGE,  Prev: TAN,  Up: Intrinsic Procedures
  
! 9.256 'TANH' -- Hyperbolic tangent function
  ===========================================
  
  _Description_:
!      'TANH(X)' computes the hyperbolic tangent of X.
  
  _Standard_:
       Fortran 77 and later, for a complex argument Fortran 2008 or later
*************** _Class_:
*** 16791,16805 ****
       Elemental function
  
  _Syntax_:
!      `X = TANH(X)'
  
  _Arguments_:
!      X          The type shall be `REAL' or `COMPLEX'.
  
  _Return value_:
!      The return value has same type and kind as X. If X is complex, the
!      imaginary part of the result is in radians. If X is `REAL', the
!      return value lies in the range  - 1 \leq tanh(x) \leq 1 .
  
  _Example_:
            program test_tanh
--- 16615,16629 ----
       Elemental function
  
  _Syntax_:
!      'X = TANH(X)'
  
  _Arguments_:
!      X           The type shall be 'REAL' or 'COMPLEX'.
  
  _Return value_:
!      The return value has same type and kind as X.  If X is complex, the
!      imaginary part of the result is in radians.  If X is 'REAL', the
!      return value lies in the range - 1 \leq tanh(x) \leq 1 .
  
  _Example_:
            program test_tanh
*************** _Example_:
*** 16808,16818 ****
            end program test_tanh
  
  _Specific names_:
!      Name          Argument      Return type   Standard
!      `TANH(X)'     `REAL(4) X'   `REAL(4)'     Fortran 95 and
!                                                later
!      `DTANH(X)'    `REAL(8) X'   `REAL(8)'     Fortran 95 and
!                                                later
  
  _See also_:
       *note ATANH::
--- 16632,16642 ----
            end program test_tanh
  
  _Specific names_:
!      Name           Argument       Return type    Standard
!      'TANH(X)'      'REAL(4) X'    'REAL(4)'      Fortran 95 and
!                                                   later
!      'DTANH(X)'     'REAL(8) X'    'REAL(8)'      Fortran 95 and
!                                                   later
  
  _See also_:
       *note ATANH::
*************** _See also_:
*** 16820,16865 ****
  
  File: gfortran.info,  Node: THIS_IMAGE,  Next: TIME,  Prev: TANH,  Up: Intrinsic Procedures
  
! 9.257 `THIS_IMAGE' -- Function that returns the cosubscript index of this image
  ===============================================================================
  
  _Description_:
       Returns the cosubscript for this image.
  
  _Standard_:
!      Fortran 2008 and later. With DISTANCE argument, Technical
       Specification (TS) 18508 or later
  
  _Class_:
       Transformational function
  
  _Syntax_:
!      `RESULT = THIS_IMAGE()'
!      `RESULT = THIS_IMAGE(DISTANCE)'
!      `RESULT = THIS_IMAGE(COARRAY [, DIM])'
  
  _Arguments_:
!      DISTANCE   (optional, intent(in)) Nonnegative scalar
!                 integer (not permitted together with COARRAY).
!      COARRAY    Coarray of any type  (optional; if DIM
!                 present, required).
!      DIM        default integer scalar (optional). If present,
!                 DIM shall be between one and the corank of
!                 COARRAY.
  
  _Return value_:
!      Default integer. If COARRAY is not present, it is scalar; if
       DISTANCE is not present or has value 0, its value is the image
       index on the invoking image for the current team, for values
!      smaller or equal distance to the initial team, it returns the
!      image index on the ancestor team which has a distance of DISTANCE
!      from the invoking team. If DISTANCE is larger than the distance to
!      the initial team, the image index of the initial team is returned.
       Otherwise when the COARRAY is present, if DIM is not present, a
       rank-1 array with corank elements is returned, containing the
!      cosubscripts for COARRAY specifying the invoking image. If DIM is
!      present, a scalar is returned, with the value of the DIM element
!      of `THIS_IMAGE(COARRAY)'.
  
  _Example_:
            INTEGER :: value[*]
--- 16644,16689 ----
  
  File: gfortran.info,  Node: THIS_IMAGE,  Next: TIME,  Prev: TANH,  Up: Intrinsic Procedures
  
! 9.257 'THIS_IMAGE' -- Function that returns the cosubscript index of this image
  ===============================================================================
  
  _Description_:
       Returns the cosubscript for this image.
  
  _Standard_:
!      Fortran 2008 and later.  With DISTANCE argument, Technical
       Specification (TS) 18508 or later
  
  _Class_:
       Transformational function
  
  _Syntax_:
!      'RESULT = THIS_IMAGE()'
!      'RESULT = THIS_IMAGE(DISTANCE)'
!      'RESULT = THIS_IMAGE(COARRAY [, DIM])'
  
  _Arguments_:
!      DISTANCE    (optional, intent(in)) Nonnegative scalar
!                  integer (not permitted together with COARRAY).
!      COARRAY     Coarray of any type (optional; if DIM present,
!                  required).
!      DIM         default integer scalar (optional).  If present,
!                  DIM shall be between one and the corank of
!                  COARRAY.
  
  _Return value_:
!      Default integer.  If COARRAY is not present, it is scalar; if
       DISTANCE is not present or has value 0, its value is the image
       index on the invoking image for the current team, for values
!      smaller or equal distance to the initial team, it returns the image
!      index on the ancestor team which has a distance of DISTANCE from
!      the invoking team.  If DISTANCE is larger than the distance to the
!      initial team, the image index of the initial team is returned.
       Otherwise when the COARRAY is present, if DIM is not present, a
       rank-1 array with corank elements is returned, containing the
!      cosubscripts for COARRAY specifying the invoking image.  If DIM is
!      present, a scalar is returned, with the value of the DIM element of
!      'THIS_IMAGE(COARRAY)'.
  
  _Example_:
            INTEGER :: value[*]
*************** _See also_:
*** 16882,16897 ****
  
  File: gfortran.info,  Node: TIME,  Next: TIME8,  Prev: THIS_IMAGE,  Up: Intrinsic Procedures
  
! 9.258 `TIME' -- Time function
  =============================
  
  _Description_:
       Returns the current time encoded as an integer (in the manner of
!      the function `time(3)' in the C standard library). This value is
!      suitable for passing to `CTIME', `GMTIME', and `LTIME'.
  
       This intrinsic is not fully portable, such as to systems with
!      32-bit `INTEGER' types but supporting times wider than 32 bits.
       Therefore, the values returned by this intrinsic might be, or
       become, negative, or numerically less than previous values, during
       a single run of the compiled program.
--- 16706,16721 ----
  
  File: gfortran.info,  Node: TIME,  Next: TIME8,  Prev: THIS_IMAGE,  Up: Intrinsic Procedures
  
! 9.258 'TIME' -- Time function
  =============================
  
  _Description_:
       Returns the current time encoded as an integer (in the manner of
!      the function 'time(3)' in the C standard library).  This value is
!      suitable for passing to 'CTIME', 'GMTIME', and 'LTIME'.
  
       This intrinsic is not fully portable, such as to systems with
!      32-bit 'INTEGER' types but supporting times wider than 32 bits.
       Therefore, the values returned by this intrinsic might be, or
       become, negative, or numerically less than previous values, during
       a single run of the compiled program.
*************** _Class_:
*** 16907,16938 ****
       Function
  
  _Syntax_:
!      `RESULT = TIME()'
  
  _Return value_:
!      The return value is a scalar of type `INTEGER(4)'.
  
  _See also_:
!      *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK::,
!      *note TIME8::
! 
  
  
  File: gfortran.info,  Node: TIME8,  Next: TINY,  Prev: TIME,  Up: Intrinsic Procedures
  
! 9.259 `TIME8' -- Time function (64-bit)
  =======================================
  
  _Description_:
       Returns the current time encoded as an integer (in the manner of
!      the function `time(3)' in the C standard library). This value is
!      suitable for passing to `CTIME', `GMTIME', and `LTIME'.
  
       _Warning:_ this intrinsic does not increase the range of the timing
!      values over that returned by `time(3)'. On a system with a 32-bit
!      `time(3)', `TIME8' will return a 32-bit value, even though it is
!      converted to a 64-bit `INTEGER(8)' value. That means overflows of
!      the 32-bit value can still occur. Therefore, the values returned
       by this intrinsic might be or become negative or numerically less
       than previous values during a single run of the compiled program.
  
--- 16731,16761 ----
       Function
  
  _Syntax_:
!      'RESULT = TIME()'
  
  _Return value_:
!      The return value is a scalar of type 'INTEGER(4)'.
  
  _See also_:
!      *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK::, *note
!      TIME8::
  
  
  File: gfortran.info,  Node: TIME8,  Next: TINY,  Prev: TIME,  Up: Intrinsic Procedures
  
! 9.259 'TIME8' -- Time function (64-bit)
  =======================================
  
  _Description_:
       Returns the current time encoded as an integer (in the manner of
!      the function 'time(3)' in the C standard library).  This value is
!      suitable for passing to 'CTIME', 'GMTIME', and 'LTIME'.
  
       _Warning:_ this intrinsic does not increase the range of the timing
!      values over that returned by 'time(3)'.  On a system with a 32-bit
!      'time(3)', 'TIME8' will return a 32-bit value, even though it is
!      converted to a 64-bit 'INTEGER(8)' value.  That means overflows of
!      the 32-bit value can still occur.  Therefore, the values returned
       by this intrinsic might be or become negative or numerically less
       than previous values during a single run of the compiled program.
  
*************** _Class_:
*** 16943,16967 ****
       Function
  
  _Syntax_:
!      `RESULT = TIME8()'
  
  _Return value_:
!      The return value is a scalar of type `INTEGER(8)'.
  
  _See also_:
       *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK8::,
       *note TIME::
  
- 
  
  File: gfortran.info,  Node: TINY,  Next: TRAILZ,  Prev: TIME8,  Up: Intrinsic Procedures
  
! 9.260 `TINY' -- Smallest positive number of a real kind
  =======================================================
  
  _Description_:
!      `TINY(X)' returns the smallest positive (non zero) number in the
!      model of the type of `X'.
  
  _Standard_:
       Fortran 95 and later
--- 16766,16789 ----
       Function
  
  _Syntax_:
!      'RESULT = TIME8()'
  
  _Return value_:
!      The return value is a scalar of type 'INTEGER(8)'.
  
  _See also_:
       *note CTIME::, *note GMTIME::, *note LTIME::, *note MCLOCK8::,
       *note TIME::
  
  
  File: gfortran.info,  Node: TINY,  Next: TRAILZ,  Prev: TIME8,  Up: Intrinsic Procedures
  
! 9.260 'TINY' -- Smallest positive number of a real kind
  =======================================================
  
  _Description_:
!      'TINY(X)' returns the smallest positive (non zero) number in the
!      model of the type of 'X'.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 16970,16994 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = TINY(X)'
  
  _Arguments_:
!      X          Shall be of type `REAL'.
  
  _Return value_:
       The return value is of the same type and kind as X
  
  _Example_:
!      See `HUGE' for an example.
  
  
  File: gfortran.info,  Node: TRAILZ,  Next: TRANSFER,  Prev: TINY,  Up: Intrinsic Procedures
  
! 9.261 `TRAILZ' -- Number of trailing zero bits of an integer
  ============================================================
  
  _Description_:
!      `TRAILZ' returns the number of trailing zero bits of an integer.
  
  _Standard_:
       Fortran 2008 and later
--- 16792,16816 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = TINY(X)'
  
  _Arguments_:
!      X           Shall be of type 'REAL'.
  
  _Return value_:
       The return value is of the same type and kind as X
  
  _Example_:
!      See 'HUGE' for an example.
  
  
  File: gfortran.info,  Node: TRAILZ,  Next: TRANSFER,  Prev: TINY,  Up: Intrinsic Procedures
  
! 9.261 'TRAILZ' -- Number of trailing zero bits of an integer
  ============================================================
  
  _Description_:
!      'TRAILZ' returns the number of trailing zero bits of an integer.
  
  _Standard_:
       Fortran 2008 and later
*************** _Class_:
*** 16997,17010 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = TRAILZ(I)'
  
  _Arguments_:
!      I          Shall be of type `INTEGER'.
  
  _Return value_:
!      The type of the return value is the default `INTEGER'.  If all the
!      bits of `I' are zero, the result value is `BIT_SIZE(I)'.
  
  _Example_:
            PROGRAM test_trailz
--- 16819,16832 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = TRAILZ(I)'
  
  _Arguments_:
!      I           Shall be of type 'INTEGER'.
  
  _Return value_:
!      The type of the return value is the default 'INTEGER'.  If all the
!      bits of 'I' are zero, the result value is 'BIT_SIZE(I)'.
  
  _Example_:
            PROGRAM test_trailz
*************** _See also_:
*** 17017,17023 ****
  
  File: gfortran.info,  Node: TRANSFER,  Next: TRANSPOSE,  Prev: TRAILZ,  Up: Intrinsic Procedures
  
! 9.262 `TRANSFER' -- Transfer bit patterns
  =========================================
  
  _Description_:
--- 16839,16845 ----
  
  File: gfortran.info,  Node: TRANSFER,  Next: TRANSPOSE,  Prev: TRAILZ,  Up: Intrinsic Procedures
  
! 9.262 'TRANSFER' -- Transfer bit patterns
  =========================================
  
  _Description_:
*************** _Class_:
*** 17035,17046 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = TRANSFER(SOURCE, MOLD[, SIZE])'
  
  _Arguments_:
!      SOURCE     Shall be a scalar or an array of any type.
!      MOLD       Shall be a scalar or an array of any type.
!      SIZE       (Optional) shall be a scalar of type `INTEGER'.
  
  _Return value_:
       The result has the same type as MOLD, with the bit level
--- 16857,16868 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = TRANSFER(SOURCE, MOLD[, SIZE])'
  
  _Arguments_:
!      SOURCE      Shall be a scalar or an array of any type.
!      MOLD        Shall be a scalar or an array of any type.
!      SIZE        (Optional) shall be a scalar of type 'INTEGER'.
  
  _Return value_:
       The result has the same type as MOLD, with the bit level
*************** _Return value_:
*** 17048,17054 ****
       one-dimensional array of length SIZE.  If SIZE is absent but MOLD
       is an array (of any size or shape), the result is a one-
       dimensional array of the minimum length needed to contain the
!      entirety of the bitwise representation of SOURCE.   If SIZE is
       absent and MOLD is a scalar, the result is a scalar.
  
       If the bitwise representation of the result is longer than that of
--- 16870,16876 ----
       one-dimensional array of length SIZE.  If SIZE is absent but MOLD
       is an array (of any size or shape), the result is a one-
       dimensional array of the minimum length needed to contain the
!      entirety of the bitwise representation of SOURCE.  If SIZE is
       absent and MOLD is a scalar, the result is a scalar.
  
       If the bitwise representation of the result is longer than that of
*************** _Return value_:
*** 17058,17066 ****
       When the resulting bit representation does not correspond to a
       valid representation of a variable of the same type as MOLD, the
       results are undefined, and subsequent operations on the result
!      cannot be guaranteed to produce sensible behavior.  For example,
!      it is possible to create `LOGICAL' variables for which `VAR' and
!      `.NOT.VAR' both appear to be true.
  
  _Example_:
            PROGRAM test_transfer
--- 16880,16888 ----
       When the resulting bit representation does not correspond to a
       valid representation of a variable of the same type as MOLD, the
       results are undefined, and subsequent operations on the result
!      cannot be guaranteed to produce sensible behavior.  For example, it
!      is possible to create 'LOGICAL' variables for which 'VAR' and
!      '.NOT.VAR' both appear to be true.
  
  _Example_:
            PROGRAM test_transfer
*************** _Example_:
*** 17071,17082 ****
  
  File: gfortran.info,  Node: TRANSPOSE,  Next: TRIM,  Prev: TRANSFER,  Up: Intrinsic Procedures
  
! 9.263 `TRANSPOSE' -- Transpose an array of rank two
  ===================================================
  
  _Description_:
!      Transpose an array of rank two. Element (i, j) of the result has
!      the value `MATRIX(j, i)', for all i, j.
  
  _Standard_:
       Fortran 95 and later
--- 16893,16904 ----
  
  File: gfortran.info,  Node: TRANSPOSE,  Next: TRIM,  Prev: TRANSFER,  Up: Intrinsic Procedures
  
! 9.263 'TRANSPOSE' -- Transpose an array of rank two
  ===================================================
  
  _Description_:
!      Transpose an array of rank two.  Element (i, j) of the result has
!      the value 'MATRIX(j, i)', for all i, j.
  
  _Standard_:
       Fortran 95 and later
*************** _Class_:
*** 17085,17104 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = TRANSPOSE(MATRIX)'
  
  _Arguments_:
!      MATRIX     Shall be an array of any type and have a rank
!                 of two.
  
  _Return value_:
!      The result has the same type as MATRIX, and has shape `(/ m, n /)'
!      if MATRIX has shape `(/ n, m /)'.
  
  
  File: gfortran.info,  Node: TRIM,  Next: TTYNAM,  Prev: TRANSPOSE,  Up: Intrinsic Procedures
  
! 9.264 `TRIM' -- Remove trailing blank characters of a string
  ============================================================
  
  _Description_:
--- 16907,16926 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = TRANSPOSE(MATRIX)'
  
  _Arguments_:
!      MATRIX      Shall be an array of any type and have a rank of
!                  two.
  
  _Return value_:
!      The result has the same type as MATRIX, and has shape '(/ m, n /)'
!      if MATRIX has shape '(/ n, m /)'.
  
  
  File: gfortran.info,  Node: TRIM,  Next: TTYNAM,  Prev: TRANSPOSE,  Up: Intrinsic Procedures
  
! 9.264 'TRIM' -- Remove trailing blank characters of a string
  ============================================================
  
  _Description_:
*************** _Class_:
*** 17111,17123 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = TRIM(STRING)'
  
  _Arguments_:
!      STRING     Shall be a scalar of type `CHARACTER'.
  
  _Return value_:
!      A scalar of type `CHARACTER' which length is that of STRING less
       the number of trailing blanks.
  
  _Example_:
--- 16933,16945 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = TRIM(STRING)'
  
  _Arguments_:
!      STRING      Shall be a scalar of type 'CHARACTER'.
  
  _Return value_:
!      A scalar of type 'CHARACTER' which length is that of STRING less
       the number of trailing blanks.
  
  _Example_:
*************** _See also_:
*** 17132,17143 ****
  
  File: gfortran.info,  Node: TTYNAM,  Next: UBOUND,  Prev: TRIM,  Up: Intrinsic Procedures
  
! 9.265 `TTYNAM' -- Get the name of a terminal device.
  ====================================================
  
  _Description_:
!      Get the name of a terminal device. For more information, see
!      `ttyname(3)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 16954,16965 ----
  
  File: gfortran.info,  Node: TTYNAM,  Next: UBOUND,  Prev: TRIM,  Up: Intrinsic Procedures
  
! 9.265 'TTYNAM' -- Get the name of a terminal device.
  ====================================================
  
  _Description_:
!      Get the name of a terminal device.  For more information, see
!      'ttyname(3)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 17149,17160 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL TTYNAM(UNIT, NAME)'
!      `NAME = TTYNAM(UNIT)'
  
  _Arguments_:
!      UNIT       Shall be a scalar `INTEGER'.
!      NAME       Shall be of type `CHARACTER'.
  
  _Example_:
            PROGRAM test_ttynam
--- 16971,16982 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL TTYNAM(UNIT, NAME)'
!      'NAME = TTYNAM(UNIT)'
  
  _Arguments_:
!      UNIT        Shall be a scalar 'INTEGER'.
!      NAME        Shall be of type 'CHARACTER'.
  
  _Example_:
            PROGRAM test_ttynam
*************** _See also_:
*** 17170,17182 ****
  
  File: gfortran.info,  Node: UBOUND,  Next: UCOBOUND,  Prev: TTYNAM,  Up: Intrinsic Procedures
  
! 9.266 `UBOUND' -- Upper dimension bounds of an array
  ====================================================
  
  _Description_:
!      Returns the upper bounds of an array, or a single upper bound
!      along the DIM dimension.
! 
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
  
--- 16992,17003 ----
  
  File: gfortran.info,  Node: UBOUND,  Next: UCOBOUND,  Prev: TTYNAM,  Up: Intrinsic Procedures
  
! 9.266 'UBOUND' -- Upper dimension bounds of an array
  ====================================================
  
  _Description_:
!      Returns the upper bounds of an array, or a single upper bound along
!      the DIM dimension.
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
  
*************** _Class_:
*** 17184,17208 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = UBOUND(ARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY      Shall be an array, of any type.
!      DIM        (Optional) Shall be a scalar `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the upper bounds of ARRAY.  If
       DIM is present, the result is a scalar corresponding to the upper
!      bound of the array along that dimension.  If ARRAY is an
!      expression rather than a whole array or array structure component,
!      or if it has a zero extent along the relevant dimension, the upper
!      bound is taken to be the number of elements along the relevant
!      dimension.
  
  _See also_:
       *note LBOUND::, *note LCOBOUND::
--- 17005,17028 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = UBOUND(ARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY       Shall be an array, of any type.
!      DIM         (Optional) Shall be a scalar 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the upper bounds of ARRAY.  If
       DIM is present, the result is a scalar corresponding to the upper
!      bound of the array along that dimension.  If ARRAY is an expression
!      rather than a whole array or array structure component, or if it
!      has a zero extent along the relevant dimension, the upper bound is
!      taken to be the number of elements along the relevant dimension.
  
  _See also_:
       *note LBOUND::, *note LCOBOUND::
*************** _See also_:
*** 17210,17222 ****
  
  File: gfortran.info,  Node: UCOBOUND,  Next: UMASK,  Prev: UBOUND,  Up: Intrinsic Procedures
  
! 9.267 `UCOBOUND' -- Upper codimension bounds of an array
  ========================================================
  
  _Description_:
       Returns the upper cobounds of a coarray, or a single upper cobound
       along the DIM codimension.
- 
  _Standard_:
       Fortran 2008 and later
  
--- 17030,17041 ----
  
  File: gfortran.info,  Node: UCOBOUND,  Next: UMASK,  Prev: UBOUND,  Up: Intrinsic Procedures
  
! 9.267 'UCOBOUND' -- Upper codimension bounds of an array
  ========================================================
  
  _Description_:
       Returns the upper cobounds of a coarray, or a single upper cobound
       along the DIM codimension.
  _Standard_:
       Fortran 2008 and later
  
*************** _Class_:
*** 17224,17240 ****
       Inquiry function
  
  _Syntax_:
!      `RESULT = UCOBOUND(COARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY      Shall be an coarray, of any type.
!      DIM        (Optional) Shall be a scalar `INTEGER'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the lower cobounds of COARRAY.
       If DIM is present, the result is a scalar corresponding to the
--- 17043,17059 ----
       Inquiry function
  
  _Syntax_:
!      'RESULT = UCOBOUND(COARRAY [, DIM [, KIND]])'
  
  _Arguments_:
!      ARRAY       Shall be an coarray, of any type.
!      DIM         (Optional) Shall be a scalar 'INTEGER'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.  If DIM is
       absent, the result is an array of the lower cobounds of COARRAY.
       If DIM is present, the result is a scalar corresponding to the
*************** _See also_:
*** 17246,17258 ****
  
  File: gfortran.info,  Node: UMASK,  Next: UNLINK,  Prev: UCOBOUND,  Up: Intrinsic Procedures
  
! 9.268 `UMASK' -- Set the file creation mask
  ===========================================
  
  _Description_:
!      Sets the file creation mask to MASK. If called as a function, it
!      returns the old value. If called as a subroutine and argument OLD
!      if it is supplied, it is set to the old value. See `umask(2)'.
  
  _Standard_:
       GNU extension
--- 17065,17077 ----
  
  File: gfortran.info,  Node: UMASK,  Next: UNLINK,  Prev: UCOBOUND,  Up: Intrinsic Procedures
  
! 9.268 'UMASK' -- Set the file creation mask
  ===========================================
  
  _Description_:
!      Sets the file creation mask to MASK.  If called as a function, it
!      returns the old value.  If called as a subroutine and argument OLD
!      if it is supplied, it is set to the old value.  See 'umask(2)'.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 17261,17286 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL UMASK(MASK [, OLD])'
!      `OLD = UMASK(MASK)'
  
  _Arguments_:
!      MASK       Shall be a scalar of type `INTEGER'.
!      OLD        (Optional) Shall be a scalar of type `INTEGER'.
! 
  
  
  File: gfortran.info,  Node: UNLINK,  Next: UNPACK,  Prev: UMASK,  Up: Intrinsic Procedures
  
! 9.269 `UNLINK' -- Remove a file from the file system
  ====================================================
  
  _Description_:
!      Unlinks the file PATH. A null character (`CHAR(0)') can be used to
!      mark the end of the name in PATH; otherwise, trailing blanks in
!      the file name are ignored.  If the STATUS argument is supplied, it
       contains 0 on success or a nonzero error code upon return; see
!      `unlink(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
--- 17080,17104 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL UMASK(MASK [, OLD])'
!      'OLD = UMASK(MASK)'
  
  _Arguments_:
!      MASK        Shall be a scalar of type 'INTEGER'.
!      OLD         (Optional) Shall be a scalar of type 'INTEGER'.
  
  
  File: gfortran.info,  Node: UNLINK,  Next: UNPACK,  Prev: UMASK,  Up: Intrinsic Procedures
  
! 9.269 'UNLINK' -- Remove a file from the file system
  ====================================================
  
  _Description_:
!      Unlinks the file PATH.  A null character ('CHAR(0)') can be used to
!      mark the end of the name in PATH; otherwise, trailing blanks in the
!      file name are ignored.  If the STATUS argument is supplied, it
       contains 0 on success or a nonzero error code upon return; see
!      'unlink(2)'.
  
       This intrinsic is provided in both subroutine and function forms;
       however, only one form can be used in any given program unit.
*************** _Class_:
*** 17292,17303 ****
       Subroutine, function
  
  _Syntax_:
!      `CALL UNLINK(PATH [, STATUS])'
!      `STATUS = UNLINK(PATH)'
  
  _Arguments_:
!      PATH       Shall be of default `CHARACTER' type.
!      STATUS     (Optional) Shall be of default `INTEGER' type.
  
  _See also_:
       *note LINK::, *note SYMLNK::
--- 17110,17121 ----
       Subroutine, function
  
  _Syntax_:
!      'CALL UNLINK(PATH [, STATUS])'
!      'STATUS = UNLINK(PATH)'
  
  _Arguments_:
!      PATH        Shall be of default 'CHARACTER' type.
!      STATUS      (Optional) Shall be of default 'INTEGER' type.
  
  _See also_:
       *note LINK::, *note SYMLNK::
*************** _See also_:
*** 17305,17311 ****
  
  File: gfortran.info,  Node: UNPACK,  Next: VERIFY,  Prev: UNLINK,  Up: Intrinsic Procedures
  
! 9.270 `UNPACK' -- Unpack an array of rank one into an array
  ===========================================================
  
  _Description_:
--- 17123,17129 ----
  
  File: gfortran.info,  Node: UNPACK,  Next: VERIFY,  Prev: UNLINK,  Up: Intrinsic Procedures
  
! 9.270 'UNPACK' -- Unpack an array of rank one into an array
  ===========================================================
  
  _Description_:
*************** _Class_:
*** 17318,17335 ****
       Transformational function
  
  _Syntax_:
!      `RESULT = UNPACK(VECTOR, MASK, FIELD)'
  
  _Arguments_:
!      VECTOR     Shall be an array of any type and rank one. It
!                 shall have at least as many elements as MASK
!                 has `TRUE' values.
!      MASK       Shall be an array of type `LOGICAL'.
!      FIELD      Shall be of the same type as VECTOR and have
!                 the same shape as MASK.
  
  _Return value_:
!      The resulting array corresponds to FIELD with `TRUE' elements of
       MASK replaced by values from VECTOR in array element order.
  
  _Example_:
--- 17136,17153 ----
       Transformational function
  
  _Syntax_:
!      'RESULT = UNPACK(VECTOR, MASK, FIELD)'
  
  _Arguments_:
!      VECTOR      Shall be an array of any type and rank one.  It
!                  shall have at least as many elements as MASK has
!                  'TRUE' values.
!      MASK        Shall be an array of type 'LOGICAL'.
!      FIELD       Shall be of the same type as VECTOR and have the
!                  same shape as MASK.
  
  _Return value_:
!      The resulting array corresponds to FIELD with 'TRUE' elements of
       MASK replaced by values from VECTOR in array element order.
  
  _Example_:
*************** _See also_:
*** 17348,17364 ****
  
  File: gfortran.info,  Node: VERIFY,  Next: XOR,  Prev: UNPACK,  Up: Intrinsic Procedures
  
! 9.271 `VERIFY' -- Scan a string for characters not a given set
  ==============================================================
  
  _Description_:
       Verifies that all the characters in STRING belong to the set of
       characters in SET.
  
!      If BACK is either absent or equals `FALSE', this function returns
       the position of the leftmost character of STRING that is not in
!      SET. If BACK equals `TRUE', the rightmost position is returned. If
!      all characters of STRING are found in SET, the result is zero.
  
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
--- 17166,17182 ----
  
  File: gfortran.info,  Node: VERIFY,  Next: XOR,  Prev: UNPACK,  Up: Intrinsic Procedures
  
! 9.271 'VERIFY' -- Scan a string for characters not a given set
  ==============================================================
  
  _Description_:
       Verifies that all the characters in STRING belong to the set of
       characters in SET.
  
!      If BACK is either absent or equals 'FALSE', this function returns
       the position of the leftmost character of STRING that is not in
!      SET.  If BACK equals 'TRUE', the rightmost position is returned.
!      If all characters of STRING are found in SET, the result is zero.
  
  _Standard_:
       Fortran 95 and later, with KIND argument Fortran 2003 and later
*************** _Class_:
*** 17367,17384 ****
       Elemental function
  
  _Syntax_:
!      `RESULT = VERIFY(STRING, SET[, BACK [, KIND]])'
  
  _Arguments_:
!      STRING     Shall be of type `CHARACTER'.
!      SET        Shall be of type `CHARACTER'.
!      BACK       (Optional) shall be of type `LOGICAL'.
!      KIND       (Optional) An `INTEGER' initialization
!                 expression indicating the kind parameter of
!                 the result.
  
  _Return value_:
!      The return value is of type `INTEGER' and of kind KIND. If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
--- 17185,17202 ----
       Elemental function
  
  _Syntax_:
!      'RESULT = VERIFY(STRING, SET[, BACK [, KIND]])'
  
  _Arguments_:
!      STRING      Shall be of type 'CHARACTER'.
!      SET         Shall be of type 'CHARACTER'.
!      BACK        (Optional) shall be of type 'LOGICAL'.
!      KIND        (Optional) An 'INTEGER' initialization
!                  expression indicating the kind parameter of the
!                  result.
  
  _Return value_:
!      The return value is of type 'INTEGER' and of kind KIND.  If KIND is
       absent, the return value is of default integer kind.
  
  _Example_:
*************** _See also_:
*** 17396,17402 ****
  
  File: gfortran.info,  Node: XOR,  Prev: VERIFY,  Up: Intrinsic Procedures
  
! 9.272 `XOR' -- Bitwise logical exclusive OR
  ===========================================
  
  _Description_:
--- 17214,17220 ----
  
  File: gfortran.info,  Node: XOR,  Prev: VERIFY,  Up: Intrinsic Procedures
  
! 9.272 'XOR' -- Bitwise logical exclusive OR
  ===========================================
  
  _Description_:
*************** _Description_:
*** 17405,17411 ****
       This intrinsic routine is provided for backwards compatibility with
       GNU Fortran 77.  For integer arguments, programmers should consider
       the use of the *note IEOR:: intrinsic and for logical arguments the
!      `.NEQV.' operator, which are both defined by the Fortran standard.
  
  _Standard_:
       GNU extension
--- 17223,17229 ----
       This intrinsic routine is provided for backwards compatibility with
       GNU Fortran 77.  For integer arguments, programmers should consider
       the use of the *note IEOR:: intrinsic and for logical arguments the
!      '.NEQV.' operator, which are both defined by the Fortran standard.
  
  _Standard_:
       GNU extension
*************** _Class_:
*** 17414,17431 ****
       Function
  
  _Syntax_:
!      `RESULT = XOR(I, J)'
  
  _Arguments_:
!      I          The type shall be either  a scalar `INTEGER'
!                 type or a scalar `LOGICAL' type.
!      J          The type shall be the same as the type of I.
  
  _Return value_:
!      The return type is either a scalar `INTEGER' or a scalar
!      `LOGICAL'.  If the kind type parameters differ, then the smaller
!      kind type is implicitly converted to larger kind, and the return
!      has the larger kind.
  
  _Example_:
            PROGRAM test_xor
--- 17232,17249 ----
       Function
  
  _Syntax_:
!      'RESULT = XOR(I, J)'
  
  _Arguments_:
!      I           The type shall be either a scalar 'INTEGER' type
!                  or a scalar 'LOGICAL' type.
!      J           The type shall be the same as the type of I.
  
  _Return value_:
!      The return type is either a scalar 'INTEGER' or a scalar 'LOGICAL'.
!      If the kind type parameters differ, then the smaller kind type is
!      implicitly converted to larger kind, and the return has the larger
!      kind.
  
  _Example_:
            PROGRAM test_xor
*************** File: gfortran.info,  Node: Intrinsic Mo
*** 17457,17577 ****
  
  File: gfortran.info,  Node: ISO_FORTRAN_ENV,  Next: ISO_C_BINDING,  Up: Intrinsic Modules
  
! 10.1 `ISO_FORTRAN_ENV'
  ======================
  
  _Standard_:
       Fortran 2003 and later, except when otherwise noted
  
!    The `ISO_FORTRAN_ENV' module provides the following scalar
  default-integer named constants:
  
! `ATOMIC_INT_KIND':
       Default-kind integer constant to be used as kind parameter when
!      defining integer variables used in atomic operations. (Fortran
       2008 or later.)
  
! `ATOMIC_LOGICAL_KIND':
       Default-kind integer constant to be used as kind parameter when
!      defining logical variables used in atomic operations. (Fortran
       2008 or later.)
  
! `CHARACTER_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the `CHARACTER' type. (Fortran 2008
       or later.)
  
! `CHARACTER_STORAGE_SIZE':
       Size in bits of the character storage unit.
  
! `ERROR_UNIT':
       Identifies the preconnected unit used for error reporting.
  
! `FILE_STORAGE_SIZE':
       Size in bits of the file-storage unit.
  
! `INPUT_UNIT':
!      Identifies the preconnected unit identified by the asterisk (`*')
!      in `READ' statement.
  
! `INT8', `INT16', `INT32', `INT64':
!      Kind type parameters to specify an INTEGER type with a storage
!      size of 16, 32, and 64 bits. It is negative if a target platform
!      does not support the particular kind. (Fortran 2008 or later.)
  
! `INTEGER_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the `INTEGER' type. (Fortran 2008 or
       later.)
  
! `IOSTAT_END':
!      The value assigned to the variable passed to the `IOSTAT='
       specifier of an input/output statement if an end-of-file condition
       occurred.
  
! `IOSTAT_EOR':
!      The value assigned to the variable passed to the `IOSTAT='
       specifier of an input/output statement if an end-of-record
       condition occurred.
  
! `IOSTAT_INQUIRE_INTERNAL_UNIT':
!      Scalar default-integer constant, used by `INQUIRE' for the
!      `IOSTAT=' specifier to denote an that a unit number identifies an
!      internal unit. (Fortran 2008 or later.)
  
! `NUMERIC_STORAGE_SIZE':
       The size in bits of the numeric storage unit.
  
! `LOGICAL_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the `LOGICAL' type. (Fortran 2008 or
       later.)
  
! `OUTPUT_UNIT':
!      Identifies the preconnected unit identified by the asterisk (`*')
!      in `WRITE' statement.
  
! `REAL32', `REAL64', `REAL128':
       Kind type parameters to specify a REAL type with a storage size of
!      32, 64, and 128 bits. It is negative if a target platform does not
!      support the particular kind. (Fortran 2008 or later.)
  
! `REAL_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the `REAL' type. (Fortran 2008 or
       later.)
  
! `STAT_LOCKED':
       Scalar default-integer constant used as STAT= return value by
!      `LOCK' to denote that the lock variable is locked by the executing
!      image. (Fortran 2008 or later.)
  
! `STAT_LOCKED_OTHER_IMAGE':
       Scalar default-integer constant used as STAT= return value by
!      `UNLOCK' to denote that the lock variable is locked by another
!      image. (Fortran 2008 or later.)
  
! `STAT_STOPPED_IMAGE':
       Positive, scalar default-integer constant used as STAT= return
       value if the argument in the statement requires synchronisation
       with an image, which has initiated the termination of the
!      execution. (Fortran 2008 or later.)
  
! `STAT_FAILED_IMAGE':
       Positive, scalar default-integer constant used as STAT= return
       value if the argument in the statement requires communication with
!      an image, which has is in the failed state. (TS 18508 or later.)
  
! `STAT_UNLOCKED':
       Scalar default-integer constant used as STAT= return value by
!      `UNLOCK' to denote that the lock variable is unlocked. (Fortran
       2008 or later.)
  
     The module provides the following derived type:
  
! `LOCK_TYPE':
!      Derived type with private components to be use with the `LOCK' and
!      `UNLOCK' statement. A variable of its type has to be always
       declared as coarray and may not appear in a variable-definition
       context.  (Fortran 2008 or later.)
  
--- 17275,17395 ----
  
  File: gfortran.info,  Node: ISO_FORTRAN_ENV,  Next: ISO_C_BINDING,  Up: Intrinsic Modules
  
! 10.1 'ISO_FORTRAN_ENV'
  ======================
  
  _Standard_:
       Fortran 2003 and later, except when otherwise noted
  
!    The 'ISO_FORTRAN_ENV' module provides the following scalar
  default-integer named constants:
  
! 'ATOMIC_INT_KIND':
       Default-kind integer constant to be used as kind parameter when
!      defining integer variables used in atomic operations.  (Fortran
       2008 or later.)
  
! 'ATOMIC_LOGICAL_KIND':
       Default-kind integer constant to be used as kind parameter when
!      defining logical variables used in atomic operations.  (Fortran
       2008 or later.)
  
! 'CHARACTER_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the 'CHARACTER' type.  (Fortran 2008
       or later.)
  
! 'CHARACTER_STORAGE_SIZE':
       Size in bits of the character storage unit.
  
! 'ERROR_UNIT':
       Identifies the preconnected unit used for error reporting.
  
! 'FILE_STORAGE_SIZE':
       Size in bits of the file-storage unit.
  
! 'INPUT_UNIT':
!      Identifies the preconnected unit identified by the asterisk ('*')
!      in 'READ' statement.
  
! 'INT8', 'INT16', 'INT32', 'INT64':
!      Kind type parameters to specify an INTEGER type with a storage size
!      of 16, 32, and 64 bits.  It is negative if a target platform does
!      not support the particular kind.  (Fortran 2008 or later.)
  
! 'INTEGER_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the 'INTEGER' type.  (Fortran 2008 or
       later.)
  
! 'IOSTAT_END':
!      The value assigned to the variable passed to the 'IOSTAT='
       specifier of an input/output statement if an end-of-file condition
       occurred.
  
! 'IOSTAT_EOR':
!      The value assigned to the variable passed to the 'IOSTAT='
       specifier of an input/output statement if an end-of-record
       condition occurred.
  
! 'IOSTAT_INQUIRE_INTERNAL_UNIT':
!      Scalar default-integer constant, used by 'INQUIRE' for the
!      'IOSTAT=' specifier to denote an that a unit number identifies an
!      internal unit.  (Fortran 2008 or later.)
  
! 'NUMERIC_STORAGE_SIZE':
       The size in bits of the numeric storage unit.
  
! 'LOGICAL_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the 'LOGICAL' type.  (Fortran 2008 or
       later.)
  
! 'OUTPUT_UNIT':
!      Identifies the preconnected unit identified by the asterisk ('*')
!      in 'WRITE' statement.
  
! 'REAL32', 'REAL64', 'REAL128':
       Kind type parameters to specify a REAL type with a storage size of
!      32, 64, and 128 bits.  It is negative if a target platform does not
!      support the particular kind.  (Fortran 2008 or later.)
  
! 'REAL_KINDS':
       Default-kind integer constant array of rank one containing the
!      supported kind parameters of the 'REAL' type.  (Fortran 2008 or
       later.)
  
! 'STAT_LOCKED':
       Scalar default-integer constant used as STAT= return value by
!      'LOCK' to denote that the lock variable is locked by the executing
!      image.  (Fortran 2008 or later.)
  
! 'STAT_LOCKED_OTHER_IMAGE':
       Scalar default-integer constant used as STAT= return value by
!      'UNLOCK' to denote that the lock variable is locked by another
!      image.  (Fortran 2008 or later.)
  
! 'STAT_STOPPED_IMAGE':
       Positive, scalar default-integer constant used as STAT= return
       value if the argument in the statement requires synchronisation
       with an image, which has initiated the termination of the
!      execution.  (Fortran 2008 or later.)
  
! 'STAT_FAILED_IMAGE':
       Positive, scalar default-integer constant used as STAT= return
       value if the argument in the statement requires communication with
!      an image, which has is in the failed state.  (TS 18508 or later.)
  
! 'STAT_UNLOCKED':
       Scalar default-integer constant used as STAT= return value by
!      'UNLOCK' to denote that the lock variable is unlocked.  (Fortran
       2008 or later.)
  
     The module provides the following derived type:
  
! 'LOCK_TYPE':
!      Derived type with private components to be use with the 'LOCK' and
!      'UNLOCK' statement.  A variable of its type has to be always
       declared as coarray and may not appear in a variable-definition
       context.  (Fortran 2008 or later.)
  
*************** COMPILER_OPTIONS:: and *note COMPILER_VE
*** 17581,17587 ****
  
  File: gfortran.info,  Node: ISO_C_BINDING,  Next: IEEE modules,  Prev: ISO_FORTRAN_ENV,  Up: Intrinsic Modules
  
! 10.2 `ISO_C_BINDING'
  ====================
  
  _Standard_:
--- 17399,17405 ----
  
  File: gfortran.info,  Node: ISO_C_BINDING,  Next: IEEE modules,  Prev: ISO_FORTRAN_ENV,  Up: Intrinsic Modules
  
! 10.2 'ISO_C_BINDING'
  ====================
  
  _Standard_:
*************** _Standard_:
*** 17591,17788 ****
  definition can be found in the section Intrinsic Procedures of this
  manual.
  
! `C_ASSOCIATED'
! 
! `C_F_POINTER'
! 
! `C_F_PROCPOINTER'
! 
! `C_FUNLOC'
! 
! `C_LOC'
! 
! `C_SIZEOF'
  
!    The `ISO_C_BINDING' module provides the following named constants of
  type default integer, which can be used as KIND type parameters.
  
     In addition to the integer named constants required by the Fortran
! 2003 standard and `C_PTRDIFF_T' of TS 29113, GNU Fortran provides as an
  extension named constants for the 128-bit integer types supported by the
! C compiler: `C_INT128_T, C_INT_LEAST128_T, C_INT_FAST128_T'.
! Furthermore, if `__float128' is supported in C, the named constants
! `C_FLOAT128, C_FLOAT128_COMPLEX' are defined.
  
  Fortran     Named constant            C type                    Extension
! Type                                                            
! `INTEGER'   `C_INT'                   `int'                     
! `INTEGER'   `C_SHORT'                 `short int'               
! `INTEGER'   `C_LONG'                  `long int'                
! `INTEGER'   `C_LONG_LONG'             `long long int'           
! `INTEGER'   `C_SIGNED_CHAR'           `signed char'/`unsigned   
!                                       char'                     
! `INTEGER'   `C_SIZE_T'                `size_t'                  
! `INTEGER'   `C_INT8_T'                `int8_t'                  
! `INTEGER'   `C_INT16_T'               `int16_t'                 
! `INTEGER'   `C_INT32_T'               `int32_t'                 
! `INTEGER'   `C_INT64_T'               `int64_t'                 
! `INTEGER'   `C_INT128_T'              `int128_t'                Ext.
! `INTEGER'   `C_INT_LEAST8_T'          `int_least8_t'            
! `INTEGER'   `C_INT_LEAST16_T'         `int_least16_t'           
! `INTEGER'   `C_INT_LEAST32_T'         `int_least32_t'           
! `INTEGER'   `C_INT_LEAST64_T'         `int_least64_t'           
! `INTEGER'   `C_INT_LEAST128_T'        `int_least128_t'          Ext.
! `INTEGER'   `C_INT_FAST8_T'           `int_fast8_t'             
! `INTEGER'   `C_INT_FAST16_T'          `int_fast16_t'            
! `INTEGER'   `C_INT_FAST32_T'          `int_fast32_t'            
! `INTEGER'   `C_INT_FAST64_T'          `int_fast64_t'            
! `INTEGER'   `C_INT_FAST128_T'         `int_fast128_t'           Ext.
! `INTEGER'   `C_INTMAX_T'              `intmax_t'                
! `INTEGER'   `C_INTPTR_T'              `intptr_t'                
! `INTEGER'   `C_PTRDIFF_T'             `intptr_t'                TS 29113
! `REAL'      `C_FLOAT'                 `float'                   
! `REAL'      `C_DOUBLE'                `double'                  
! `REAL'      `C_LONG_DOUBLE'           `long double'             
! `REAL'      `C_FLOAT128'              `__float128'              Ext.
! `COMPLEX'   `C_FLOAT_COMPLEX'         `float _Complex'          
! `COMPLEX'   `C_DOUBLE_COMPLEX'        `double _Complex'         
! `COMPLEX'   `C_LONG_DOUBLE_COMPLEX'   `long double _Complex'    
! `REAL'      `C_FLOAT128_COMPLEX'      `__float128 _Complex'     Ext.
! `LOGICAL'   `C_BOOL'                  `_Bool'                   
! `CHARACTER' `C_CHAR'                  `char'                    
  
     Additionally, the following parameters of type
! `CHARACTER(KIND=C_CHAR)' are defined.
  
  Name           C definition                     Value
! `C_NULL_CHAR'  null character                   `'\0''
! `C_ALERT'      alert                            `'\a''
! `C_BACKSPACE'  backspace                        `'\b''
! `C_FORM_FEED'  form feed                        `'\f''
! `C_NEW_LINE'   new line                         `'\n''
! `C_CARRIAGE_RETURN'carriage return                  `'\r''
! `C_HORIZONTAL_TAB'horizontal tab                   `'\t''
! `C_VERTICAL_TAB'vertical tab                     `'\v''
  
     Moreover, the following two named constants are defined:
  
  Name           Type
! `C_NULL_PTR'   `C_PTR'
! `C_NULL_FUNPTR'`C_FUNPTR'
  
!    Both are equivalent to the value `NULL' in C.
  
  
  File: gfortran.info,  Node: IEEE modules,  Next: OpenMP Modules OMP_LIB and OMP_LIB_KINDS,  Prev: ISO_C_BINDING,  Up: Intrinsic Modules
  
! 10.3 IEEE modules: `IEEE_EXCEPTIONS', `IEEE_ARITHMETIC', and `IEEE_FEATURES'
  ============================================================================
  
  _Standard_:
       Fortran 2003 and later
  
!    The `IEEE_EXCEPTIONS', `IEEE_ARITHMETIC', and `IEEE_FEATURES'
  intrinsic modules provide support for exceptions and IEEE arithmetic, as
  defined in Fortran 2003 and later standards, and the IEC 60559:1989
  standard (_Binary floating-point arithmetic for microprocessor
! systems_). These modules are only provided on the following supported
  platforms:
  
     * i386 and x86_64 processors
- 
     * platforms which use the GNU C Library (glibc)
- 
     * platforms with support for SysV/386 routines for floating point
       interface (including Solaris and BSDs)
- 
     * platforms with the AIX OS
  
     For full compliance with the Fortran standards, code using the
! `IEEE_EXCEPTIONS' or `IEEE_ARITHMETIC' modules should be compiled with
! the following options: `-fno-unsafe-math-optimizations -frounding-math
  -fsignaling-nans'.
  
  
  File: gfortran.info,  Node: OpenMP Modules OMP_LIB and OMP_LIB_KINDS,  Next: OpenACC Module OPENACC,  Prev: IEEE modules,  Up: Intrinsic Modules
  
! 10.4 OpenMP Modules `OMP_LIB' and `OMP_LIB_KINDS'
  =================================================
  
  _Standard_:
       OpenMP Application Program Interface v4.0
  
     The OpenMP Fortran runtime library routines are provided both in a
! form of two Fortran 90 modules, named `OMP_LIB' and `OMP_LIB_KINDS',
! and in a form of a Fortran `include' file named `omp_lib.h'. The
! procedures provided by `OMP_LIB' can be found in the *note
! Introduction: (libgomp)Top. manual, the named constants defined in the
! modules are listed below.
  
     For details refer to the actual OpenMP Application Program Interface
  v4.0 (http://www.openmp.org/mp-documents/OpenMP4.0.0.pdf).
  
!    `OMP_LIB_KINDS' provides the following scalar default-integer named
  constants:
  
! `omp_lock_kind'
! 
! `omp_nest_lock_kind'
! 
! `omp_proc_bind_kind'
! 
! `omp_sched_kind'
  
!    `OMP_LIB' provides the scalar default-integer named constant
! `openmp_version' with a value of the form YYYYMM, where `yyyy' is the
  year and MM the month of the OpenMP version; for OpenMP v4.0 the value
! is `201307'.
  
     The following scalar integer named constants of the kind
! `omp_sched_kind':
! 
! `omp_sched_static'
! 
! `omp_sched_dynamic'
! 
! `omp_sched_guided'
  
! `omp_sched_auto'
  
     And the following scalar integer named constants of the kind
! `omp_proc_bind_kind':
! 
! `omp_proc_bind_false'
! 
! `omp_proc_bind_true'
! 
! `omp_proc_bind_master'
! 
! `omp_proc_bind_close'
  
! `omp_proc_bind_spread'
  
  
  File: gfortran.info,  Node: OpenACC Module OPENACC,  Prev: OpenMP Modules OMP_LIB and OMP_LIB_KINDS,  Up: Intrinsic Modules
  
! 10.5 OpenACC Module `OPENACC'
  =============================
  
  _Standard_:
       OpenACC Application Programming Interface v2.0
  
     The OpenACC Fortran runtime library routines are provided both in a
! form of a Fortran 90 module, named `OPENACC', and in form of a Fortran
! `include' file named `openacc_lib.h'.  The procedures provided by
! `OPENACC' can be found in the *note Introduction: (libgomp)Top. manual,
  the named constants defined in the modules are listed below.
  
     For details refer to the actual OpenACC Application Programming
  Interface v2.0 (http://www.openacc.org/).
  
!    `OPENACC' provides the scalar default-integer named constant
! `openacc_version' with a value of the form YYYYMM, where `yyyy' is the
! year and MM the month of the OpenACC version; for OpenACC v2.0 the
! value is `201306'.
  
  
  File: gfortran.info,  Node: Contributing,  Next: Copying,  Prev: Intrinsic Modules,  Up: Top
--- 17409,17588 ----
  definition can be found in the section Intrinsic Procedures of this
  manual.
  
! 'C_ASSOCIATED'
! 'C_F_POINTER'
! 'C_F_PROCPOINTER'
! 'C_FUNLOC'
! 'C_LOC'
! 'C_SIZEOF'
  
!    The 'ISO_C_BINDING' module provides the following named constants of
  type default integer, which can be used as KIND type parameters.
  
     In addition to the integer named constants required by the Fortran
! 2003 standard and 'C_PTRDIFF_T' of TS 29113, GNU Fortran provides as an
  extension named constants for the 128-bit integer types supported by the
! C compiler: 'C_INT128_T, C_INT_LEAST128_T, C_INT_FAST128_T'.
! Furthermore, if '__float128' is supported in C, the named constants
! 'C_FLOAT128, C_FLOAT128_COMPLEX' are defined.
  
  Fortran     Named constant            C type                    Extension
! Type
! 'INTEGER'   'C_INT'                   'int'
! 'INTEGER'   'C_SHORT'                 'short int'
! 'INTEGER'   'C_LONG'                  'long int'
! 'INTEGER'   'C_LONG_LONG'             'long long int'
! 'INTEGER'   'C_SIGNED_CHAR'           'signed char'/'unsigned
!                                       char'
! 'INTEGER'   'C_SIZE_T'                'size_t'
! 'INTEGER'   'C_INT8_T'                'int8_t'
! 'INTEGER'   'C_INT16_T'               'int16_t'
! 'INTEGER'   'C_INT32_T'               'int32_t'
! 'INTEGER'   'C_INT64_T'               'int64_t'
! 'INTEGER'   'C_INT128_T'              'int128_t'                Ext.
! 'INTEGER'   'C_INT_LEAST8_T'          'int_least8_t'
! 'INTEGER'   'C_INT_LEAST16_T'         'int_least16_t'
! 'INTEGER'   'C_INT_LEAST32_T'         'int_least32_t'
! 'INTEGER'   'C_INT_LEAST64_T'         'int_least64_t'
! 'INTEGER'   'C_INT_LEAST128_T'        'int_least128_t'          Ext.
! 'INTEGER'   'C_INT_FAST8_T'           'int_fast8_t'
! 'INTEGER'   'C_INT_FAST16_T'          'int_fast16_t'
! 'INTEGER'   'C_INT_FAST32_T'          'int_fast32_t'
! 'INTEGER'   'C_INT_FAST64_T'          'int_fast64_t'
! 'INTEGER'   'C_INT_FAST128_T'         'int_fast128_t'           Ext.
! 'INTEGER'   'C_INTMAX_T'              'intmax_t'
! 'INTEGER'   'C_INTPTR_T'              'intptr_t'
! 'INTEGER'   'C_PTRDIFF_T'             'intptr_t'                TS 29113
! 'REAL'      'C_FLOAT'                 'float'
! 'REAL'      'C_DOUBLE'                'double'
! 'REAL'      'C_LONG_DOUBLE'           'long double'
! 'REAL'      'C_FLOAT128'              '__float128'              Ext.
! 'COMPLEX'   'C_FLOAT_COMPLEX'         'float _Complex'
! 'COMPLEX'   'C_DOUBLE_COMPLEX'        'double _Complex'
! 'COMPLEX'   'C_LONG_DOUBLE_COMPLEX'   'long double _Complex'
! 'REAL'      'C_FLOAT128_COMPLEX'      '__float128 _Complex'     Ext.
! 'LOGICAL'   'C_BOOL'                  '_Bool'
! 'CHARACTER' 'C_CHAR'                  'char'
  
     Additionally, the following parameters of type
! 'CHARACTER(KIND=C_CHAR)' are defined.
  
  Name           C definition                     Value
! 'C_NULL_CHAR'  null character                   ''\0''
! 'C_ALERT'      alert                            ''\a''
! 'C_BACKSPACE'  backspace                        ''\b''
! 'C_FORM_FEED'  form feed                        ''\f''
! 'C_NEW_LINE'   new line                         ''\n''
! 'C_CARRIAGE_RETURN'carriage return              ''\r''
! 'C_HORIZONTAL_TAB'horizontal tab                ''\t''
! 'C_VERTICAL_TAB'vertical tab                    ''\v''
  
     Moreover, the following two named constants are defined:
  
  Name           Type
! 'C_NULL_PTR'   'C_PTR'
! 'C_NULL_FUNPTR''C_FUNPTR'
  
!    Both are equivalent to the value 'NULL' in C.
  
  
  File: gfortran.info,  Node: IEEE modules,  Next: OpenMP Modules OMP_LIB and OMP_LIB_KINDS,  Prev: ISO_C_BINDING,  Up: Intrinsic Modules
  
! 10.3 IEEE modules: 'IEEE_EXCEPTIONS', 'IEEE_ARITHMETIC', and 'IEEE_FEATURES'
  ============================================================================
  
  _Standard_:
       Fortran 2003 and later
  
!    The 'IEEE_EXCEPTIONS', 'IEEE_ARITHMETIC', and 'IEEE_FEATURES'
  intrinsic modules provide support for exceptions and IEEE arithmetic, as
  defined in Fortran 2003 and later standards, and the IEC 60559:1989
  standard (_Binary floating-point arithmetic for microprocessor
! systems_).  These modules are only provided on the following supported
  platforms:
  
     * i386 and x86_64 processors
     * platforms which use the GNU C Library (glibc)
     * platforms with support for SysV/386 routines for floating point
       interface (including Solaris and BSDs)
     * platforms with the AIX OS
  
     For full compliance with the Fortran standards, code using the
! 'IEEE_EXCEPTIONS' or 'IEEE_ARITHMETIC' modules should be compiled with
! the following options: '-fno-unsafe-math-optimizations -frounding-math
  -fsignaling-nans'.
  
  
  File: gfortran.info,  Node: OpenMP Modules OMP_LIB and OMP_LIB_KINDS,  Next: OpenACC Module OPENACC,  Prev: IEEE modules,  Up: Intrinsic Modules
  
! 10.4 OpenMP Modules 'OMP_LIB' and 'OMP_LIB_KINDS'
  =================================================
  
  _Standard_:
       OpenMP Application Program Interface v4.0
  
     The OpenMP Fortran runtime library routines are provided both in a
! form of two Fortran 90 modules, named 'OMP_LIB' and 'OMP_LIB_KINDS', and
! in a form of a Fortran 'include' file named 'omp_lib.h'.  The procedures
! provided by 'OMP_LIB' can be found in the *note Introduction:
! (libgomp)Top. manual, the named constants defined in the modules are
! listed below.
  
     For details refer to the actual OpenMP Application Program Interface
  v4.0 (http://www.openmp.org/mp-documents/OpenMP4.0.0.pdf).
  
!    'OMP_LIB_KINDS' provides the following scalar default-integer named
  constants:
  
! 'omp_lock_kind'
! 'omp_nest_lock_kind'
! 'omp_proc_bind_kind'
! 'omp_sched_kind'
  
!    'OMP_LIB' provides the scalar default-integer named constant
! 'openmp_version' with a value of the form YYYYMM, where 'yyyy' is the
  year and MM the month of the OpenMP version; for OpenMP v4.0 the value
! is '201307'.
  
     The following scalar integer named constants of the kind
! 'omp_sched_kind':
  
! 'omp_sched_static'
! 'omp_sched_dynamic'
! 'omp_sched_guided'
! 'omp_sched_auto'
  
     And the following scalar integer named constants of the kind
! 'omp_proc_bind_kind':
  
! 'omp_proc_bind_false'
! 'omp_proc_bind_true'
! 'omp_proc_bind_master'
! 'omp_proc_bind_close'
! 'omp_proc_bind_spread'
  
  
  File: gfortran.info,  Node: OpenACC Module OPENACC,  Prev: OpenMP Modules OMP_LIB and OMP_LIB_KINDS,  Up: Intrinsic Modules
  
! 10.5 OpenACC Module 'OPENACC'
  =============================
  
  _Standard_:
       OpenACC Application Programming Interface v2.0
  
     The OpenACC Fortran runtime library routines are provided both in a
! form of a Fortran 90 module, named 'OPENACC', and in form of a Fortran
! 'include' file named 'openacc_lib.h'.  The procedures provided by
! 'OPENACC' can be found in the *note Introduction: (libgomp)Top. manual,
  the named constants defined in the modules are listed below.
  
     For details refer to the actual OpenACC Application Programming
  Interface v2.0 (http://www.openacc.org/).
  
!    'OPENACC' provides the scalar default-integer named constant
! 'openacc_version' with a value of the form YYYYMM, where 'yyyy' is the
! year and MM the month of the OpenACC version; for OpenACC v2.0 the value
! is '201306'.
  
  
  File: gfortran.info,  Node: Contributing,  Next: Copying,  Prev: Intrinsic Modules,  Up: Top
*************** File: gfortran.info,  Node: Contributing
*** 17790,17798 ****
  Contributing
  ************
  
! Free software is only possible if people contribute to efforts to
! create it.  We're always in need of more people helping out with ideas
! and comments, writing documentation and contributing code.
  
     If you want to contribute to GNU Fortran, have a look at the long
  lists of projects you can take on.  Some of these projects are small,
--- 17590,17598 ----
  Contributing
  ************
  
! Free software is only possible if people contribute to efforts to create
! it.  We're always in need of more people helping out with ideas and
! comments, writing documentation and contributing code.
  
     If you want to contribute to GNU Fortran, have a look at the long
  lists of projects you can take on.  Some of these projects are small,
*************** with GCC was written by _Paul Brook_.
*** 17822,17890 ****
  significant help to the GNU Fortran project (in alphabetical order):
  
     - Janne Blomqvist
- 
     - Steven Bosscher
- 
     - Paul Brook
- 
     - Tobias Burnus
- 
     - Franc,ois-Xavier Coudert
- 
     - Bud Davis
- 
     - Jerry DeLisle
- 
     - Erik Edelmann
- 
     - Bernhard Fischer
- 
     - Daniel Franke
- 
     - Richard Guenther
- 
     - Richard Henderson
- 
     - Katherine Holcomb
- 
     - Jakub Jelinek
- 
     - Niels Kristian Bech Jensen
- 
     - Steven Johnson
- 
     - Steven G. Kargl
- 
     - Thomas Koenig
- 
     - Asher Langton
- 
     - H. J. Lu
- 
     - Toon Moene
- 
     - Brooks Moses
- 
     - Andrew Pinski
- 
     - Tim Prince
- 
     - Christopher D. Rickett
- 
     - Richard Sandiford
- 
     - Tobias Schlu"ter
- 
     - Roger Sayle
- 
     - Paul Thomas
- 
     - Andy Vaught
- 
     - Feng Wang
- 
     - Janus Weil
- 
     - Daniel Kraft
  
     The following people have contributed bug reports, smaller or larger
--- 17622,17658 ----
*************** patches, and much needed feedback and en
*** 17892,17904 ****
  project:
  
     - Bill Clodius
- 
     - Dominique d'Humie`res
- 
     - Kate Hedstrom
- 
     - Erik Schnetter
- 
     - Joost VandeVondele
  
     Many other individuals have helped debug, test and improve the GNU
--- 17660,17668 ----
*************** Projects
*** 17914,17942 ****
  
  _Help build the test suite_
       Solicit more code for donation to the test suite: the more
!      extensive the testsuite, the smaller the risk of breaking things
!      in the future! We can keep code private on request.
  
  _Bug hunting/squishing_
!      Find bugs and write more test cases! Test cases are especially very
!      welcome, because it allows us to concentrate on fixing bugs
       instead of isolating them.  Going through the bugzilla database at
!      `https://gcc.gnu.org/bugzilla/' to reduce testcases posted there
       and add more information (for example, for which version does the
!      testcase work, for which versions does it fail?) is also very
       helpful.
  
- 
  
  File: gfortran.info,  Node: Proposed Extensions,  Prev: Projects,  Up: Contributing
  
  Proposed Extensions
  ===================
  
! Here's a list of proposed extensions for the GNU Fortran compiler, in
! no particular order.  Most of these are necessary to be fully
! compatible with existing Fortran compilers, but they are not part of
! the official J3 Fortran 95 standard.
  
  Compiler extensions:
  --------------------
--- 17678,17705 ----
  
  _Help build the test suite_
       Solicit more code for donation to the test suite: the more
!      extensive the testsuite, the smaller the risk of breaking things in
!      the future!  We can keep code private on request.
  
  _Bug hunting/squishing_
!      Find bugs and write more test cases!  Test cases are especially
!      very welcome, because it allows us to concentrate on fixing bugs
       instead of isolating them.  Going through the bugzilla database at
!      <https://gcc.gnu.org/bugzilla/> to reduce testcases posted there
       and add more information (for example, for which version does the
!      testcase work, for which versions does it fail?)  is also very
       helpful.
  
  
  File: gfortran.info,  Node: Proposed Extensions,  Prev: Projects,  Up: Contributing
  
  Proposed Extensions
  ===================
  
! Here's a list of proposed extensions for the GNU Fortran compiler, in no
! particular order.  Most of these are necessary to be fully compatible
! with existing Fortran compilers, but they are not part of the official
! J3 Fortran 95 standard.
  
  Compiler extensions:
  --------------------
*************** Compiler extensions:
*** 17945,17952 ****
  
     * Automatically extend single precision constants to double.
  
!    * Compile code that conserves memory by dynamically allocating
!      common and module storage either on stack or heap.
  
     * Compile flag to generate code for array conformance checking
       (suggest -CC).
--- 17708,17715 ----
  
     * Automatically extend single precision constants to double.
  
!    * Compile code that conserves memory by dynamically allocating common
!      and module storage either on stack or heap.
  
     * Compile flag to generate code for array conformance checking
       (suggest -CC).
*************** Environment Options
*** 17994,18000 ****
     * Environment variable forcing standard output to be line buffered
       (Unix).
  
- 
  
  File: gfortran.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: Contributing,  Up: Top
  
--- 17757,17762 ----
*************** GNU General Public License
*** 18003,18009 ****
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
--- 17765,17771 ----
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
*************** want it, that you can change the softwar
*** 18031,18039 ****
  free programs, and that you know you can do these things.
  
     To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you
! have certain responsibilities if you distribute copies of the software,
! or if you modify it: responsibilities to respect the freedom of others.
  
     For example, if you distribute copies of such a program, whether
  gratis or for a fee, you must pass on to the recipients the same
--- 17793,17801 ----
  free programs, and that you know you can do these things.
  
     To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you have
! certain responsibilities if you distribute copies of the software, or if
! you modify it: responsibilities to respect the freedom of others.
  
     For example, if you distribute copies of such a program, whether
  gratis or for a fee, you must pass on to the recipients the same
*************** changed, so that their problems will not
*** 18052,18067 ****
  authors of previous versions.
  
     Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the
! manufacturer can do so.  This is fundamentally incompatible with the
! aim of protecting users' freedom to change the software.  The
! systematic pattern of such abuse occurs in the area of products for
! individuals to use, which is precisely where it is most unacceptable.
! Therefore, we have designed this version of the GPL to prohibit the
! practice for those products.  If such problems arise substantially in
! other domains, we stand ready to extend this provision to those domains
! in future versions of the GPL, as needed to protect the freedom of
! users.
  
     Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
--- 17814,17828 ----
  authors of previous versions.
  
     Some devices are designed to deny users access to install or run
! modified versions of the software inside them, although the manufacturer
! can do so.  This is fundamentally incompatible with the aim of
! protecting users' freedom to change the software.  The systematic
! pattern of such abuse occurs in the area of products for individuals to
! use, which is precisely where it is most unacceptable.  Therefore, we
! have designed this version of the GPL to prohibit the practice for those
! products.  If such problems arise substantially in other domains, we
! stand ready to extend this provision to those domains in future versions
! of the GPL, as needed to protect the freedom of users.
  
     Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
*************** TERMS AND CONDITIONS
*** 18098,18105 ****
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it
!      on a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
--- 17859,17866 ----
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
!      infringement under applicable copyright law, except executing it on
!      a computer or modifying a private copy.  Propagation includes
       copying, distribution (with or without modification), making
       available to the public, and in some countries other activities as
       well.
*************** TERMS AND CONDITIONS
*** 18113,18120 ****
       to the extent that it includes a convenient and prominently visible
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       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
--- 17874,17881 ----
       to the extent that it includes a convenient and prominently visible
       feature that (1) displays an appropriate copyright notice, and (2)
       tells the user that there is no warranty for the work (except to
!      the extent that warranties are provided), that licensees may convey
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       License.  If the interface presents a list of user commands or
       options, such as a menu, a prominent item in the list meets this
       criterion.
*************** TERMS AND CONDITIONS
*** 18122,18129 ****
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any
!      non-source form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
--- 17883,17890 ----
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
!      for making modifications to it.  "Object code" means any non-source
!      form of a work.
  
       A "Standard Interface" means an interface that either is an
       official standard defined by a recognized standards body, or, in
*************** TERMS AND CONDITIONS
*** 18134,18143 ****
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work
!      with that Major Component, or to implement a Standard Interface
!      for which an implementation is available to the public in source
!      code form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
--- 17895,17904 ----
       The "System Libraries" of an executable work include anything,
       other than the work as a whole, that (a) is included in the normal
       form of packaging a Major Component, but which is not part of that
!      Major Component, and (b) serves only to enable use of the work with
!      that Major Component, or to implement a Standard Interface for
!      which an implementation is available to the public in source code
!      form.  A "Major Component", in this context, means a major
       essential component (kernel, window system, and so on) of the
       specific operating system (if any) on which the executable work
       runs, or a compiler used to produce the work, or an object code
*************** TERMS AND CONDITIONS
*** 18145,18159 ****
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including
!      scripts to control those activities.  However, it does not include
!      the work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files
!      associated with source files for the work, and the source code for
!      shared libraries and dynamically linked subprograms that the work
!      is specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
--- 17906,17920 ----
  
       The "Corresponding Source" for a work in object code form means all
       the source code needed to generate, install, and (for an executable
!      work) run the object code and to modify the work, including scripts
!      to control those activities.  However, it does not include the
!      work's System Libraries, or general-purpose tools or generally
       available free programs which are used unmodified in performing
       those activities but which are not part of the work.  For example,
!      Corresponding Source includes interface definition files associated
!      with source files for the work, and the source code for shared
!      libraries and dynamically linked subprograms that the work is
!      specifically designed to require, such as by intimate data
       communication or control flow between those subprograms and other
       parts of the work.
  
*************** TERMS AND CONDITIONS
*** 18170,18191 ****
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output,
!      given its content, constitutes a covered work.  This License
!      acknowledges your rights of fair use or other equivalent, as
!      provided by copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for
!      you, or provide you with facilities for running those works,
!      provided that you comply with the terms of this License in
!      conveying all material for which you do not control copyright.
!      Those thus making or running the covered works for you must do so
!      exclusively on your behalf, under your direction and control, on
!      terms that prohibit them from making any copies of your
!      copyrighted material outside their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
--- 17931,17952 ----
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output, given
!      its content, constitutes a covered work.  This License acknowledges
!      your rights of fair use or other equivalent, as provided by
!      copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for you,
!      or provide you with facilities for running those works, provided
!      that you comply with the terms of this License in conveying all
!      material for which you do not control copyright.  Those thus making
!      or running the covered works for you must do so exclusively on your
!      behalf, under your direction and control, on terms that prohibit
!      them from making any copies of your copyrighted material outside
!      their relationship with you.
  
       Conveying under any other circumstances is permitted solely under
       the conditions stated below.  Sublicensing is not allowed; section
*************** TERMS AND CONDITIONS
*** 18202,18209 ****
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention
!      to limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
--- 17963,17970 ----
       When you convey a covered work, you waive any legal power to forbid
       circumvention of technological measures to the extent such
       circumvention is effected by exercising rights under this License
!      with respect to the covered work, and you disclaim any intention to
!      limit operation or modification of the work as a means of
       enforcing, against the work's users, your or third parties' legal
       rights to forbid circumvention of technological measures.
  
*************** TERMS AND CONDITIONS
*** 18273,18280 ****
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for
!           as long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
--- 18034,18041 ----
  
         b. Convey the object code in, or embodied in, a physical product
            (including a physical distribution medium), accompanied by a
!           written offer, valid for at least three years and valid for as
!           long as you offer spare parts or customer support for that
            product model, to give anyone who possesses the object code
            either (1) a copy of the Corresponding Source for all the
            software in the product that is covered by this License, on a
*************** TERMS AND CONDITIONS
*** 18284,18315 ****
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of
!           the written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
            and only if you received the object code with such an offer,
            in accord with subsection 6b.
  
         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access
!           to the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated
!           by you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to
!           the object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long
!           as needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
- 
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
--- 18045,18075 ----
            to copy the Corresponding Source from a network server at no
            charge.
  
!        c. Convey individual copies of the object code with a copy of the
!           written offer to provide the Corresponding Source.  This
            alternative is allowed only occasionally and noncommercially,
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         d. Convey the object code by offering access from a designated
!           place (gratis or for a charge), and offer equivalent access to
!           the Corresponding Source in the same way through the same
            place at no further charge.  You need not require recipients
            to copy the Corresponding Source along with the object code.
            If the place to copy the object code is a network server, the
!           Corresponding Source may be on a different server (operated by
!           you or a third party) that supports equivalent copying
!           facilities, provided you maintain clear directions next to the
!           object code saying where to find the Corresponding Source.
            Regardless of what server hosts the Corresponding Source, you
!           remain obligated to ensure that it is available for as long as
!           needed to satisfy these requirements.
  
         e. Convey the object code using peer-to-peer transmission,
            provided you inform other peers where the object code and
            Corresponding Source of the work are being offered to the
            general public at no charge under subsection 6d.
  
       A separable portion of the object code, whose source code is
       excluded from the Corresponding Source as a System Library, need
       not be included in conveying the object code work.
*************** TERMS AND CONDITIONS
*** 18317,18324 ****
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product
!      is a consumer product, doubtful cases shall be resolved in favor of
       coverage.  For a particular product received by a particular user,
       "normally used" refers to a typical or common use of that class of
       product, regardless of the status of the particular user or of the
--- 18077,18084 ----
       A "User Product" is either (1) a "consumer product", which means
       any tangible personal property which is normally used for personal,
       family, or household purposes, or (2) anything designed or sold for
!      incorporation into a dwelling.  In determining whether a product is
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*** 18349,18359 ****
  
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       Corresponding Source conveyed, and Installation Information
--- 18109,18119 ----
  
       The requirement to provide Installation Information does not
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*************** TERMS AND CONDITIONS
*** 18383,18390 ****
  
       Notwithstanding any other provision of this License, for material
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!      holders of that material) supplement the terms of this License
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         a. Disclaiming warranty or limiting liability differently from
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--- 18143,18150 ----
  
       Notwithstanding any other provision of this License, for material
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*************** TERMS AND CONDITIONS
*** 18394,18402 ****
            Legal Notices displayed by works containing it; or
  
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--- 18154,18161 ----
            Legal Notices displayed by works containing it; or
  
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*************** TERMS AND CONDITIONS
*** 18415,18425 ****
       you received it, or any part of it, contains a notice stating that
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!      material governed by the terms of that license document, provided
!      that the further restriction does not survive such relicensing or
!      conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
--- 18174,18183 ----
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or conveying
!      under this License, you may add to a covered work material governed
!      by the terms of that license document, provided that the further
!      restriction does not survive such relicensing or conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
*************** TERMS AND CONDITIONS
*** 18435,18447 ****
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under
!      the third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 18193,18205 ----
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under the
!      third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** TERMS AND CONDITIONS
*** 18453,18462 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, you do not qualify to receive new
!      licenses for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
--- 18211,18220 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, you do not qualify to receive new licenses
!      for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
*************** TERMS AND CONDITIONS
*** 18470,18476 ****
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!  10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
--- 18228,18234 ----
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!   10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
*************** TERMS AND CONDITIONS
*** 18484,18504 ****
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to
!      possession of the Corresponding Source of the work from the
!      predecessor in interest, if the predecessor has it or can get it
!      with reasonable efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for
!      exercise of rights granted under this License, and you may not
!      initiate litigation (including a cross-claim or counterclaim in a
!      lawsuit) alleging that any patent claim is infringed by making,
!      using, selling, offering for sale, or importing the Program or any
!      portion of it.
  
!  11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
--- 18242,18262 ----
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to possession
!      of the Corresponding Source of the work from the predecessor in
!      interest, if the predecessor has it or can get it with reasonable
!      efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for exercise
!      of rights granted under this License, and you may not initiate
!      litigation (including a cross-claim or counterclaim in a lawsuit)
!      alleging that any patent claim is infringed by making, using,
!      selling, offering for sale, or importing the Program or any portion
!      of it.
  
!   11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
*************** TERMS AND CONDITIONS
*** 18518,18532 ****
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its
!      contributor version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To
!      "grant" such a patent license to a party means to make such an
!      agreement or commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
--- 18276,18290 ----
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its contributor
!      version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To "grant"
!      such a patent license to a party means to make such an agreement or
!      commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
*************** TERMS AND CONDITIONS
*** 18556,18591 ****
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under
!      which you make payment to the third party based on the extent of
!      your activity of conveying the work, and under which the third
!      party grants, to any of the parties who would receive the covered
!      work from you, a discriminatory patent license (a) in connection
!      with copies of the covered work conveyed by you (or copies made
!      from those copies), or (b) primarily for and in connection with
!      specific products or compilations that contain the covered work,
!      unless you entered into that arrangement, or that patent license
!      was granted, prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!  12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order,
!      agreement or otherwise) that contradict the conditions of this
!      License, they do not excuse you from the conditions of this
!      License.  If you cannot convey a covered work so as to satisfy
!      simultaneously your obligations under this License and any other
!      pertinent obligations, then as a consequence you may not convey it
!      at all.  For example, if you agree to terms that obligate you to
!      collect a royalty for further conveying from those to whom you
!      convey the Program, the only way you could satisfy both those
!      terms and this License would be to refrain entirely from conveying
!      the Program.
  
!  13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
--- 18314,18348 ----
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under which
!      you make payment to the third party based on the extent of your
!      activity of conveying the work, and under which the third party
!      grants, to any of the parties who would receive the covered work
!      from you, a discriminatory patent license (a) in connection with
!      copies of the covered work conveyed by you (or copies made from
!      those copies), or (b) primarily for and in connection with specific
!      products or compilations that contain the covered work, unless you
!      entered into that arrangement, or that patent license was granted,
!      prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!   12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order, agreement
!      or otherwise) that contradict the conditions of this License, they
!      do not excuse you from the conditions of this License.  If you
!      cannot convey a covered work so as to satisfy simultaneously your
!      obligations under this License and any other pertinent obligations,
!      then as a consequence you may not convey it at all.  For example,
!      if you agree to terms that obligate you to collect a royalty for
!      further conveying from those to whom you convey the Program, the
!      only way you could satisfy both those terms and this License would
!      be to refrain entirely from conveying the Program.
  
!   13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
*************** TERMS AND CONDITIONS
*** 18596,18617 ****
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!  14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.
!      Such new versions will be similar in spirit to the present
!      version, but may differ in detail to address new problems or
!      concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the
!      Free Software Foundation.  If the Program does not specify a
!      version number of the GNU General Public License, you may choose
!      any version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
--- 18353,18373 ----
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!   14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.  Such
!      new versions will be similar in spirit to the present version, but
!      may differ in detail to address new problems or concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the Free
!      Software Foundation.  If the Program does not specify a version
!      number of the GNU General Public License, you may choose any
!      version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
*************** TERMS AND CONDITIONS
*** 18623,18646 ****
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!  15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!  16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
!      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
--- 18379,18402 ----
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!   15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!   16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
!      DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
*************** TERMS AND CONDITIONS
*** 18648,18654 ****
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!  17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
--- 18404,18410 ----
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!   17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
*************** TERMS AND CONDITIONS
*** 18657,18663 ****
       connection with the Program, unless a warranty or assumption of
       liability accompanies a copy of the Program in return for a fee.
  
- 
  END OF TERMS AND CONDITIONS
  ===========================
  
--- 18413,18418 ----
*************** state the exclusion of warranty; and eac
*** 18688,18694 ****
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see `http://www.gnu.org/licenses/'.
  
     Also add information on how to contact you by electronic and paper
  mail.
--- 18443,18449 ----
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
     Also add information on how to contact you by electronic and paper
  mail.
*************** mail.
*** 18697,18707 ****
  notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type `show c' for details.
  
!    The hypothetical commands `show w' and `show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
--- 18452,18462 ----
  notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type 'show c' for details.
  
!    The hypothetical commands 'show w' and 'show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
*************** use an "about box".
*** 18709,18722 ****
     You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see `http://www.gnu.org/licenses/'.
  
     The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read `http://www.gnu.org/philosophy/why-not-lgpl.html'.
  
  
  File: gfortran.info,  Node: GNU Free Documentation License,  Next: Funding,  Prev: Copying,  Up: Top
--- 18464,18477 ----
     You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see <http://www.gnu.org/licenses/>.
  
     The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
  
  
  File: gfortran.info,  Node: GNU Free Documentation License,  Next: Funding,  Prev: Copying,  Up: Top
*************** GNU Free Documentation License
*** 18727,18733 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 18482,18488 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 18752,18772 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 18507,18527 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 18784,18795 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 18539,18550 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 18800,18826 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 18555,18581 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 18858,18865 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 18613,18620 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 18873,18884 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 18628,18638 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 18886,18925 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 18640,18678 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 18949,18979 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 18702,18731 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 18986,18996 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 18738,18748 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 18999,19013 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 18751,18765 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 19017,19024 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 18769,18776 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 19045,19064 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 18797,18816 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 19103,19110 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 18855,18862 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 19116,19148 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 18868,18900 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 19172,19178 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 18924,18929 ----
*************** notices just after the title page:
*** 19189,19195 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 18940,18946 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 19200,19208 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: gfortran.info,  Node: Funding,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
--- 18951,18959 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: gfortran.info,  Node: Funding,  Next: Option Index,  Prev: GNU Free Documentation License,  Up: Top
*************** for comparison.
*** 19232,19239 ****
  
     Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.
! If the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
     Some redistributors do development work themselves.  This is useful
--- 18983,18990 ----
  
     Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.  If
! the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
     Some redistributors do development work themselves.  This is useful
*************** difference than others.  For example, ma
*** 19243,19250 ****
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection
! contribute more; major new features or packages contribute the most.
  
     By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
--- 18994,19001 ----
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection contribute
! more; major new features or packages contribute the most.
  
     By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
*************** File: gfortran.info,  Node: Option Index
*** 19260,19284 ****
  Option Index
  ************
  
! `gfortran''s command line options are indexed here without any initial
! `-' or `--'.  Where an option has both positive and negative forms
! (such as -foption and -fno-option), relevant entries in the manual are
! indexed under the most appropriate form; it may sometimes be useful to
! look up both forms.
  
  [index]
  * Menu:
  
  * A-PREDICATE=ANSWER:                    Preprocessing Options.
!                                                               (line 120)
  * APREDICATE=ANSWER:                     Preprocessing Options.
!                                                               (line 114)
  * backslash:                             Fortran Dialect Options.
                                                                (line  56)
  * C:                                     Preprocessing Options.
!                                                               (line 123)
  * CC:                                    Preprocessing Options.
!                                                               (line 138)
  * cpp:                                   Preprocessing Options.
                                                                (line  12)
  * dD:                                    Preprocessing Options.
--- 19011,19035 ----
  Option Index
  ************
  
! 'gfortran''s command line options are indexed here without any initial
! '-' or '--'.  Where an option has both positive and negative forms (such
! as -foption and -fno-option), relevant entries in the manual are indexed
! under the most appropriate form; it may sometimes be useful to look up
! both forms.
  
  [index]
  * Menu:
  
  * A-PREDICATE=ANSWER:                    Preprocessing Options.
!                                                               (line 119)
  * APREDICATE=ANSWER:                     Preprocessing Options.
!                                                               (line 113)
  * backslash:                             Fortran Dialect Options.
                                                                (line  56)
  * C:                                     Preprocessing Options.
!                                                               (line 122)
  * CC:                                    Preprocessing Options.
!                                                               (line 137)
  * cpp:                                   Preprocessing Options.
                                                                (line  12)
  * dD:                                    Preprocessing Options.
*************** look up both forms.
*** 19290,19309 ****
  * dN:                                    Preprocessing Options.
                                                                (line  41)
  * DNAME:                                 Preprocessing Options.
!                                                               (line 153)
  * DNAME=DEFINITION:                      Preprocessing Options.
!                                                               (line 156)
  * dU:                                    Preprocessing Options.
                                                                (line  44)
! * faggressive-function-elimination:      Code Gen Options.    (line 365)
! * falign-commons:                        Code Gen Options.    (line 338)
  * fall-intrinsics:                       Fortran Dialect Options.
                                                                (line  17)
! * fblas-matmul-limit:                    Code Gen Options.    (line 275)
! * fbounds-check:                         Code Gen Options.    (line 199)
! * fcheck:                                Code Gen Options.    (line 143)
! * fcheck-array-temporaries:              Code Gen Options.    (line 202)
! * fcoarray:                              Code Gen Options.    (line 129)
  * fconvert=CONVERSION:                   Runtime Options.     (line  10)
  * fcray-pointer:                         Fortran Dialect Options.
                                                                (line 102)
--- 19041,19060 ----
  * dN:                                    Preprocessing Options.
                                                                (line  41)
  * DNAME:                                 Preprocessing Options.
!                                                               (line 151)
  * DNAME=DEFINITION:                      Preprocessing Options.
!                                                               (line 154)
  * dU:                                    Preprocessing Options.
                                                                (line  44)
! * faggressive-function-elimination:      Code Gen Options.    (line 361)
! * falign-commons:                        Code Gen Options.    (line 334)
  * fall-intrinsics:                       Fortran Dialect Options.
                                                                (line  17)
! * fblas-matmul-limit:                    Code Gen Options.    (line 274)
! * fbounds-check:                         Code Gen Options.    (line 198)
! * fcheck:                                Code Gen Options.    (line 141)
! * fcheck-array-temporaries:              Code Gen Options.    (line 201)
! * fcoarray:                              Code Gen Options.    (line 127)
  * fconvert=CONVERSION:                   Runtime Options.     (line  10)
  * fcray-pointer:                         Fortran Dialect Options.
                                                                (line 102)
*************** look up both forms.
*** 19316,19338 ****
  * fdec-structure:                        Fortran Dialect Options.
                                                                (line  44)
  * fdefault-double-8:                     Fortran Dialect Options.
!                                                               (line 152)
  * fdefault-integer-8:                    Fortran Dialect Options.
!                                                               (line 138)
  * fdefault-real-8:                       Fortran Dialect Options.
!                                                               (line 144)
  * fdollar-ok:                            Fortran Dialect Options.
                                                                (line  50)
  * fdump-fortran-optimized:               Debugging Options.   (line  15)
  * fdump-fortran-original:                Debugging Options.   (line  10)
  * fdump-parse-tree:                      Debugging Options.   (line  19)
! * fexternal-blas:                        Code Gen Options.    (line 267)
  * ff2c:                                  Code Gen Options.    (line  25)
  * ffixed-form:                           Fortran Dialect Options.
                                                                (line  11)
  * ffixed-line-length-N:                  Fortran Dialect Options.
                                                                (line  73)
! * ffpe-summary=LIST:                     Debugging Options.   (line  52)
  * ffpe-trap=LIST:                        Debugging Options.   (line  25)
  * ffree-form:                            Fortran Dialect Options.
                                                                (line  11)
--- 19067,19089 ----
  * fdec-structure:                        Fortran Dialect Options.
                                                                (line  44)
  * fdefault-double-8:                     Fortran Dialect Options.
!                                                               (line 151)
  * fdefault-integer-8:                    Fortran Dialect Options.
!                                                               (line 137)
  * fdefault-real-8:                       Fortran Dialect Options.
!                                                               (line 143)
  * fdollar-ok:                            Fortran Dialect Options.
                                                                (line  50)
  * fdump-fortran-optimized:               Debugging Options.   (line  15)
  * fdump-fortran-original:                Debugging Options.   (line  10)
  * fdump-parse-tree:                      Debugging Options.   (line  19)
! * fexternal-blas:                        Code Gen Options.    (line 266)
  * ff2c:                                  Code Gen Options.    (line  25)
  * ffixed-form:                           Fortran Dialect Options.
                                                                (line  11)
  * ffixed-line-length-N:                  Fortran Dialect Options.
                                                                (line  73)
! * ffpe-summary=LIST:                     Debugging Options.   (line  51)
  * ffpe-trap=LIST:                        Debugging Options.   (line  25)
  * ffree-form:                            Fortran Dialect Options.
                                                                (line  11)
*************** look up both forms.
*** 19340,19434 ****
                                                                (line  86)
  * fimplicit-none:                        Fortran Dialect Options.
                                                                (line  97)
! * finit-character:                       Code Gen Options.    (line 310)
! * finit-integer:                         Code Gen Options.    (line 310)
! * finit-local-zero:                      Code Gen Options.    (line 310)
! * finit-logical:                         Code Gen Options.    (line 310)
! * finit-real:                            Code Gen Options.    (line 310)
! * finline-matmul-limit:                  Code Gen Options.    (line 286)
  * finteger-4-integer-8:                  Fortran Dialect Options.
!                                                               (line 161)
  * fintrinsic-modules-path DIR:           Directory Options.   (line  36)
! * fmax-array-constructor:                Code Gen Options.    (line 205)
  * fmax-errors=N:                         Error and Warning Options.
                                                                (line  27)
  * fmax-identifier-length=N:              Fortran Dialect Options.
                                                                (line  93)
! * fmax-stack-var-size:                   Code Gen Options.    (line 223)
  * fmax-subrecord-length=LENGTH:          Runtime Options.     (line  29)
  * fmodule-private:                       Fortran Dialect Options.
                                                                (line  68)
  * fno-automatic:                         Code Gen Options.    (line  15)
! * fno-backtrace:                         Debugging Options.   (line  62)
! * fno-protect-parens:                    Code Gen Options.    (line 350)
  * fno-underscoring:                      Code Gen Options.    (line  54)
  * fopenacc:                              Fortran Dialect Options.
                                                                (line 106)
  * fopenmp:                               Fortran Dialect Options.
!                                                               (line 118)
! * fpack-derived:                         Code Gen Options.    (line 245)
  * fpp:                                   Preprocessing Options.
                                                                (line  12)
  * frange-check:                          Fortran Dialect Options.
!                                                               (line 126)
  * freal-4-real-10:                       Fortran Dialect Options.
!                                                               (line 177)
  * freal-4-real-16:                       Fortran Dialect Options.
!                                                               (line 177)
  * freal-4-real-8:                        Fortran Dialect Options.
!                                                               (line 177)
  * freal-8-real-10:                       Fortran Dialect Options.
!                                                               (line 177)
  * freal-8-real-16:                       Fortran Dialect Options.
!                                                               (line 177)
  * freal-8-real-4:                        Fortran Dialect Options.
!                                                               (line 177)
! * frealloc-lhs:                          Code Gen Options.    (line 359)
  * frecord-marker=LENGTH:                 Runtime Options.     (line  21)
! * frecursive:                            Code Gen Options.    (line 301)
! * frepack-arrays:                        Code Gen Options.    (line 251)
! * frontend-optimize:                     Code Gen Options.    (line 373)
! * fsecond-underscore:                    Code Gen Options.    (line 112)
  * fshort-enums <1>:                      Fortran 2003 status. (line  93)
- * fshort-enums:                          Code Gen Options.    (line 261)
  * fsign-zero:                            Runtime Options.     (line  34)
! * fstack-arrays:                         Code Gen Options.    (line 237)
  * fsyntax-only:                          Error and Warning Options.
                                                                (line  33)
  * fworking-directory:                    Preprocessing Options.
                                                                (line  55)
  * H:                                     Preprocessing Options.
!                                                               (line 176)
  * IDIR:                                  Directory Options.   (line  14)
  * idirafter DIR:                         Preprocessing Options.
!                                                               (line  70)
  * imultilib DIR:                         Preprocessing Options.
!                                                               (line  77)
  * iprefix PREFIX:                        Preprocessing Options.
!                                                               (line  81)
  * iquote DIR:                            Preprocessing Options.
!                                                               (line  90)
  * isysroot DIR:                          Preprocessing Options.
!                                                               (line  86)
  * isystem DIR:                           Preprocessing Options.
!                                                               (line  97)
  * JDIR:                                  Directory Options.   (line  29)
  * MDIR:                                  Directory Options.   (line  29)
  * nostdinc:                              Preprocessing Options.
!                                                               (line 105)
  * P:                                     Preprocessing Options.
!                                                               (line 181)
  * pedantic:                              Error and Warning Options.
                                                                (line  38)
  * pedantic-errors:                       Error and Warning Options.
                                                                (line  57)
  * static-libgfortran:                    Link Options.        (line  11)
  * std=STD option:                        Fortran Dialect Options.
!                                                               (line 188)
  * UNAME:                                 Preprocessing Options.
!                                                               (line 187)
  * undef:                                 Preprocessing Options.
!                                                               (line 110)
  * Waliasing:                             Error and Warning Options.
                                                                (line  69)
  * Walign-commons:                        Error and Warning Options.
--- 19091,19185 ----
                                                                (line  86)
  * fimplicit-none:                        Fortran Dialect Options.
                                                                (line  97)
! * finit-character:                       Code Gen Options.    (line 309)
! * finit-integer:                         Code Gen Options.    (line 309)
! * finit-local-zero:                      Code Gen Options.    (line 309)
! * finit-logical:                         Code Gen Options.    (line 309)
! * finit-real:                            Code Gen Options.    (line 309)
! * finline-matmul-limit:                  Code Gen Options.    (line 285)
  * finteger-4-integer-8:                  Fortran Dialect Options.
!                                                               (line 160)
  * fintrinsic-modules-path DIR:           Directory Options.   (line  36)
! * fmax-array-constructor:                Code Gen Options.    (line 204)
  * fmax-errors=N:                         Error and Warning Options.
                                                                (line  27)
  * fmax-identifier-length=N:              Fortran Dialect Options.
                                                                (line  93)
! * fmax-stack-var-size:                   Code Gen Options.    (line 222)
  * fmax-subrecord-length=LENGTH:          Runtime Options.     (line  29)
  * fmodule-private:                       Fortran Dialect Options.
                                                                (line  68)
  * fno-automatic:                         Code Gen Options.    (line  15)
! * fno-backtrace:                         Debugging Options.   (line  61)
! * fno-protect-parens:                    Code Gen Options.    (line 346)
  * fno-underscoring:                      Code Gen Options.    (line  54)
  * fopenacc:                              Fortran Dialect Options.
                                                                (line 106)
  * fopenmp:                               Fortran Dialect Options.
!                                                               (line 117)
! * fpack-derived:                         Code Gen Options.    (line 244)
  * fpp:                                   Preprocessing Options.
                                                                (line  12)
  * frange-check:                          Fortran Dialect Options.
!                                                               (line 125)
  * freal-4-real-10:                       Fortran Dialect Options.
!                                                               (line 175)
  * freal-4-real-16:                       Fortran Dialect Options.
!                                                               (line 175)
  * freal-4-real-8:                        Fortran Dialect Options.
!                                                               (line 175)
  * freal-8-real-10:                       Fortran Dialect Options.
!                                                               (line 175)
  * freal-8-real-16:                       Fortran Dialect Options.
!                                                               (line 175)
  * freal-8-real-4:                        Fortran Dialect Options.
!                                                               (line 175)
! * frealloc-lhs:                          Code Gen Options.    (line 355)
  * frecord-marker=LENGTH:                 Runtime Options.     (line  21)
! * frecursive:                            Code Gen Options.    (line 300)
! * frepack-arrays:                        Code Gen Options.    (line 250)
! * frontend-optimize:                     Code Gen Options.    (line 369)
! * fsecond-underscore:                    Code Gen Options.    (line 110)
! * fshort-enums:                          Code Gen Options.    (line 260)
  * fshort-enums <1>:                      Fortran 2003 status. (line  93)
  * fsign-zero:                            Runtime Options.     (line  34)
! * fstack-arrays:                         Code Gen Options.    (line 236)
  * fsyntax-only:                          Error and Warning Options.
                                                                (line  33)
  * fworking-directory:                    Preprocessing Options.
                                                                (line  55)
  * H:                                     Preprocessing Options.
!                                                               (line 174)
  * IDIR:                                  Directory Options.   (line  14)
  * idirafter DIR:                         Preprocessing Options.
!                                                               (line  69)
  * imultilib DIR:                         Preprocessing Options.
!                                                               (line  76)
  * iprefix PREFIX:                        Preprocessing Options.
!                                                               (line  80)
  * iquote DIR:                            Preprocessing Options.
!                                                               (line  89)
  * isysroot DIR:                          Preprocessing Options.
!                                                               (line  85)
  * isystem DIR:                           Preprocessing Options.
!                                                               (line  96)
  * JDIR:                                  Directory Options.   (line  29)
  * MDIR:                                  Directory Options.   (line  29)
  * nostdinc:                              Preprocessing Options.
!                                                               (line 104)
  * P:                                     Preprocessing Options.
!                                                               (line 179)
  * pedantic:                              Error and Warning Options.
                                                                (line  38)
  * pedantic-errors:                       Error and Warning Options.
                                                                (line  57)
  * static-libgfortran:                    Link Options.        (line  11)
  * std=STD option:                        Fortran Dialect Options.
!                                                               (line 186)
  * UNAME:                                 Preprocessing Options.
!                                                               (line 185)
  * undef:                                 Preprocessing Options.
!                                                               (line 109)
  * Waliasing:                             Error and Warning Options.
                                                                (line  69)
  * Walign-commons:                        Error and Warning Options.
*************** look up both forms.
*** 19444,19456 ****
  * Wcharacter-truncation:                 Error and Warning Options.
                                                                (line 106)
  * Wcompare-reals:                        Error and Warning Options.
!                                                               (line 238)
  * Wconversion:                           Error and Warning Options.
                                                                (line 115)
  * Wconversion-extra:                     Error and Warning Options.
                                                                (line 119)
  * Werror:                                Error and Warning Options.
!                                                               (line 250)
  * Wextra:                                Error and Warning Options.
                                                                (line 123)
  * Wfunction-elimination:                 Error and Warning Options.
--- 19195,19207 ----
  * Wcharacter-truncation:                 Error and Warning Options.
                                                                (line 106)
  * Wcompare-reals:                        Error and Warning Options.
!                                                               (line 237)
  * Wconversion:                           Error and Warning Options.
                                                                (line 115)
  * Wconversion-extra:                     Error and Warning Options.
                                                                (line 119)
  * Werror:                                Error and Warning Options.
!                                                               (line 249)
  * Wextra:                                Error and Warning Options.
                                                                (line 123)
  * Wfunction-elimination:                 Error and Warning Options.
*************** look up both forms.
*** 19472,19484 ****
  * Wrealloc-lhs:                          Error and Warning Options.
                                                                (line 220)
  * Wrealloc-lhs-all:                      Error and Warning Options.
!                                                               (line 233)
  * Wsurprising:                           Error and Warning Options.
                                                                (line 153)
  * Wtabs:                                 Error and Warning Options.
                                                                (line 175)
  * Wtargt-lifetime:                       Error and Warning Options.
!                                                               (line 242)
  * Wunderflow:                            Error and Warning Options.
                                                                (line 183)
  * Wunused-dummy-argument:                Error and Warning Options.
--- 19223,19235 ----
  * Wrealloc-lhs:                          Error and Warning Options.
                                                                (line 220)
  * Wrealloc-lhs-all:                      Error and Warning Options.
!                                                               (line 232)
  * Wsurprising:                           Error and Warning Options.
                                                                (line 153)
  * Wtabs:                                 Error and Warning Options.
                                                                (line 175)
  * Wtargt-lifetime:                       Error and Warning Options.
!                                                               (line 241)
  * Wunderflow:                            Error and Warning Options.
                                                                (line 183)
  * Wunused-dummy-argument:                Error and Warning Options.
*************** look up both forms.
*** 19488,19494 ****
  * Wuse-without-only:                     Error and Warning Options.
                                                                (line 195)
  * Wzerotrip:                             Error and Warning Options.
!                                                               (line 246)
  
  
  File: gfortran.info,  Node: Keyword Index,  Prev: Option Index,  Up: Top
--- 19239,19245 ----
  * Wuse-without-only:                     Error and Warning Options.
                                                                (line 195)
  * Wzerotrip:                             Error and Warning Options.
!                                                               (line 245)
  
  
  File: gfortran.info,  Node: Keyword Index,  Prev: Option Index,  Up: Top
*************** Keyword Index
*** 19524,19535 ****
  * ABS:                                   ABS.                 (line   6)
  * absolute value:                        ABS.                 (line   6)
  * ACCESS:                                ACCESS.              (line   6)
! * ACCESS='STREAM' I/O:                   Fortran 2003 status. (line 105)
  * ACHAR:                                 ACHAR.               (line   6)
  * ACOS:                                  ACOS.                (line   6)
  * ACOSH:                                 ACOSH.               (line   6)
- * adjust string <1>:                     ADJUSTR.             (line   6)
  * adjust string:                         ADJUSTL.             (line   6)
  * ADJUSTL:                               ADJUSTL.             (line   6)
  * ADJUSTR:                               ADJUSTR.             (line   6)
  * AIMAG:                                 AIMAG.               (line   6)
--- 19275,19286 ----
  * ABS:                                   ABS.                 (line   6)
  * absolute value:                        ABS.                 (line   6)
  * ACCESS:                                ACCESS.              (line   6)
! * ACCESS='STREAM' I/O:                   Fortran 2003 status. (line 103)
  * ACHAR:                                 ACHAR.               (line   6)
  * ACOS:                                  ACOS.                (line   6)
  * ACOSH:                                 ACOSH.               (line   6)
  * adjust string:                         ADJUSTL.             (line   6)
+ * adjust string <1>:                     ADJUSTR.             (line   6)
  * ADJUSTL:                               ADJUSTL.             (line   6)
  * ADJUSTR:                               ADJUSTR.             (line   6)
  * AIMAG:                                 AIMAG.               (line   6)
*************** Keyword Index
*** 19538,19553 ****
  * ALGAMA:                                LOG_GAMMA.           (line   6)
  * aliasing:                              Error and Warning Options.
                                                                (line  69)
- * alignment of COMMON blocks <1>:        Code Gen Options.    (line 338)
  * alignment of COMMON blocks:            Error and Warning Options.
                                                                (line 210)
  * ALL:                                   ALL.                 (line   6)
  * all warnings:                          Error and Warning Options.
                                                                (line  61)
  * ALLOCATABLE components of derived types: Fortran 2003 status.
!                                                               (line 103)
  * ALLOCATABLE dummy arguments:           Fortran 2003 status. (line  99)
! * ALLOCATABLE function results:          Fortran 2003 status. (line 101)
  * ALLOCATED:                             ALLOCATED.           (line   6)
  * allocation, moving:                    MOVE_ALLOC.          (line   6)
  * allocation, status:                    ALLOCATED.           (line   6)
--- 19289,19304 ----
  * ALGAMA:                                LOG_GAMMA.           (line   6)
  * aliasing:                              Error and Warning Options.
                                                                (line  69)
  * alignment of COMMON blocks:            Error and Warning Options.
                                                                (line 210)
+ * alignment of COMMON blocks <1>:        Code Gen Options.    (line 334)
  * ALL:                                   ALL.                 (line   6)
  * all warnings:                          Error and Warning Options.
                                                                (line  61)
  * ALLOCATABLE components of derived types: Fortran 2003 status.
!                                                               (line 101)
  * ALLOCATABLE dummy arguments:           Fortran 2003 status. (line  99)
! * ALLOCATABLE function results:          Fortran 2003 status. (line 100)
  * ALLOCATED:                             ALLOCATED.           (line   6)
  * allocation, moving:                    MOVE_ALLOC.          (line   6)
  * allocation, status:                    ALLOCATED.           (line   6)
*************** Keyword Index
*** 19566,19587 ****
  * area hyperbolic tangent:               ATANH.               (line   6)
  * argument list functions:               Argument list functions.
                                                                (line   6)
- * arguments, to program <1>:             IARGC.               (line   6)
- * arguments, to program <2>:             GET_COMMAND_ARGUMENT.
-                                                               (line   6)
- * arguments, to program <3>:             GET_COMMAND.         (line   6)
- * arguments, to program <4>:             GETARG.              (line   6)
  * arguments, to program:                 COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
  * array, add elements:                   SUM.                 (line   6)
  * array, AND:                            IALL.                (line   6)
- * array, apply condition <1>:            ANY.                 (line   6)
  * array, apply condition:                ALL.                 (line   6)
! * array, bounds checking:                Code Gen Options.    (line 143)
  * array, change dimensions:              RESHAPE.             (line   6)
  * array, combine arrays:                 MERGE.               (line   6)
- * array, condition testing <1>:          ANY.                 (line   6)
  * array, condition testing:              ALL.                 (line   6)
  * array, conditionally add elements:     SUM.                 (line   6)
  * array, conditionally count elements:   COUNT.               (line   6)
  * array, conditionally multiply elements: PRODUCT.            (line   6)
--- 19317,19338 ----
  * area hyperbolic tangent:               ATANH.               (line   6)
  * argument list functions:               Argument list functions.
                                                                (line   6)
  * arguments, to program:                 COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
+ * arguments, to program <1>:             GETARG.              (line   6)
+ * arguments, to program <2>:             GET_COMMAND.         (line   6)
+ * arguments, to program <3>:             GET_COMMAND_ARGUMENT.
+                                                               (line   6)
+ * arguments, to program <4>:             IARGC.               (line   6)
  * array, add elements:                   SUM.                 (line   6)
  * array, AND:                            IALL.                (line   6)
  * array, apply condition:                ALL.                 (line   6)
! * array, apply condition <1>:            ANY.                 (line   6)
! * array, bounds checking:                Code Gen Options.    (line 141)
  * array, change dimensions:              RESHAPE.             (line   6)
  * array, combine arrays:                 MERGE.               (line   6)
  * array, condition testing:              ALL.                 (line   6)
+ * array, condition testing <1>:          ANY.                 (line   6)
  * array, conditionally add elements:     SUM.                 (line   6)
  * array, conditionally count elements:   COUNT.               (line   6)
  * array, conditionally multiply elements: PRODUCT.            (line   6)
*************** Keyword Index
*** 19591,19598 ****
  * array, duplicate elements:             SPREAD.              (line   6)
  * array, element counting:               COUNT.               (line   6)
  * array, gather elements:                PACK.                (line   6)
- * array, increase dimension <1>:         UNPACK.              (line   6)
  * array, increase dimension:             SPREAD.              (line   6)
  * array, indices of type real:           Real array indices.  (line   6)
  * array, location of maximum element:    MAXLOC.              (line   6)
  * array, location of minimum element:    MINLOC.              (line   6)
--- 19342,19349 ----
  * array, duplicate elements:             SPREAD.              (line   6)
  * array, element counting:               COUNT.               (line   6)
  * array, gather elements:                PACK.                (line   6)
  * array, increase dimension:             SPREAD.              (line   6)
+ * array, increase dimension <1>:         UNPACK.              (line   6)
  * array, indices of type real:           Real array indices.  (line   6)
  * array, location of maximum element:    MAXLOC.              (line   6)
  * array, location of minimum element:    MINLOC.              (line   6)
*************** Keyword Index
*** 19601,19608 ****
  * array, merge arrays:                   MERGE.               (line   6)
  * array, minimum value:                  MINVAL.              (line   6)
  * array, multiply elements:              PRODUCT.             (line   6)
- * array, number of elements <1>:         SIZE.                (line   6)
  * array, number of elements:             COUNT.               (line   6)
  * array, OR:                             IANY.                (line   6)
  * array, packing:                        PACK.                (line   6)
  * array, parity:                         IPARITY.             (line   6)
--- 19352,19359 ----
  * array, merge arrays:                   MERGE.               (line   6)
  * array, minimum value:                  MINVAL.              (line   6)
  * array, multiply elements:              PRODUCT.             (line   6)
  * array, number of elements:             COUNT.               (line   6)
+ * array, number of elements <1>:         SIZE.                (line   6)
  * array, OR:                             IANY.                (line   6)
  * array, packing:                        PACK.                (line   6)
  * array, parity:                         IPARITY.             (line   6)
*************** Keyword Index
*** 19621,19628 ****
  * array, unpacking:                      UNPACK.              (line   6)
  * array, upper bound:                    UBOUND.              (line   6)
  * array, XOR:                            IPARITY.             (line   6)
- * ASCII collating sequence <1>:          IACHAR.              (line   6)
  * ASCII collating sequence:              ACHAR.               (line   6)
  * ASIN:                                  ASIN.                (line   6)
  * ASINH:                                 ASINH.               (line   6)
  * ASSOCIATED:                            ASSOCIATED.          (line   6)
--- 19372,19379 ----
  * array, unpacking:                      UNPACK.              (line   6)
  * array, upper bound:                    UBOUND.              (line   6)
  * array, XOR:                            IPARITY.             (line   6)
  * ASCII collating sequence:              ACHAR.               (line   6)
+ * ASCII collating sequence <1>:          IACHAR.              (line   6)
  * ASIN:                                  ASIN.                (line   6)
  * ASINH:                                 ASINH.               (line   6)
  * ASSOCIATED:                            ASSOCIATED.          (line   6)
*************** Keyword Index
*** 19644,19651 ****
  * Atomic subroutine, XOR with fetch:     ATOMIC_FETCH_XOR.    (line   6)
  * ATOMIC_ADD:                            ATOMIC_ADD.          (line   6)
  * ATOMIC_AND:                            ATOMIC_AND.          (line   6)
- * ATOMIC_DEFINE <1>:                     ATOMIC_DEFINE.       (line   6)
  * ATOMIC_DEFINE:                         ATOMIC_CAS.          (line   6)
  * ATOMIC_FETCH_ADD:                      ATOMIC_FETCH_ADD.    (line   6)
  * ATOMIC_FETCH_AND:                      ATOMIC_FETCH_AND.    (line   6)
  * ATOMIC_FETCH_OR:                       ATOMIC_FETCH_OR.     (line   6)
--- 19395,19402 ----
  * Atomic subroutine, XOR with fetch:     ATOMIC_FETCH_XOR.    (line   6)
  * ATOMIC_ADD:                            ATOMIC_ADD.          (line   6)
  * ATOMIC_AND:                            ATOMIC_AND.          (line   6)
  * ATOMIC_DEFINE:                         ATOMIC_CAS.          (line   6)
+ * ATOMIC_DEFINE <1>:                     ATOMIC_DEFINE.       (line   6)
  * ATOMIC_FETCH_ADD:                      ATOMIC_FETCH_ADD.    (line   6)
  * ATOMIC_FETCH_AND:                      ATOMIC_FETCH_AND.    (line   6)
  * ATOMIC_FETCH_OR:                       ATOMIC_FETCH_OR.     (line   6)
*************** Keyword Index
*** 19658,19676 ****
                                                                (line  56)
  * BACKSPACE:                             Read/Write after EOF marker.
                                                                (line   6)
- * backtrace:                             BACKTRACE.           (line   6)
  * BACKTRACE:                             BACKTRACE.           (line   6)
! * backtrace:                             Debugging Options.   (line  62)
  * base 10 logarithm function:            LOG10.               (line   6)
  * BESJ0:                                 BESSEL_J0.           (line   6)
  * BESJ1:                                 BESSEL_J1.           (line   6)
  * BESJN:                                 BESSEL_JN.           (line   6)
- * Bessel function, first kind <1>:       BESSEL_JN.           (line   6)
- * Bessel function, first kind <2>:       BESSEL_J1.           (line   6)
  * Bessel function, first kind:           BESSEL_J0.           (line   6)
! * Bessel function, second kind <1>:      BESSEL_YN.           (line   6)
! * Bessel function, second kind <2>:      BESSEL_Y1.           (line   6)
  * Bessel function, second kind:          BESSEL_Y0.           (line   6)
  * BESSEL_J0:                             BESSEL_J0.           (line   6)
  * BESSEL_J1:                             BESSEL_J1.           (line   6)
  * BESSEL_JN:                             BESSEL_JN.           (line   6)
--- 19409,19427 ----
                                                                (line  56)
  * BACKSPACE:                             Read/Write after EOF marker.
                                                                (line   6)
  * BACKTRACE:                             BACKTRACE.           (line   6)
! * backtrace:                             Debugging Options.   (line  61)
! * backtrace <1>:                         BACKTRACE.           (line   6)
  * base 10 logarithm function:            LOG10.               (line   6)
  * BESJ0:                                 BESSEL_J0.           (line   6)
  * BESJ1:                                 BESSEL_J1.           (line   6)
  * BESJN:                                 BESSEL_JN.           (line   6)
  * Bessel function, first kind:           BESSEL_J0.           (line   6)
! * Bessel function, first kind <1>:       BESSEL_J1.           (line   6)
! * Bessel function, first kind <2>:       BESSEL_JN.           (line   6)
  * Bessel function, second kind:          BESSEL_Y0.           (line   6)
+ * Bessel function, second kind <1>:      BESSEL_Y1.           (line   6)
+ * Bessel function, second kind <2>:      BESSEL_YN.           (line   6)
  * BESSEL_J0:                             BESSEL_J0.           (line   6)
  * BESSEL_J1:                             BESSEL_J1.           (line   6)
  * BESSEL_JN:                             BESSEL_JN.           (line   6)
*************** Keyword Index
*** 19682,19735 ****
  * BESYN:                                 BESSEL_YN.           (line   6)
  * BGE:                                   BGE.                 (line   6)
  * BGT:                                   BGT.                 (line   6)
- * binary representation <1>:             POPPAR.              (line   6)
  * binary representation:                 POPCNT.              (line   6)
! * BIT_SIZE:                              BIT_SIZE.            (line   6)
  * bits set:                              POPCNT.              (line   6)
  * bits, AND of array elements:           IALL.                (line   6)
  * bits, clear:                           IBCLR.               (line   6)
  * bits, extract:                         IBITS.               (line   6)
  * bits, get:                             IBITS.               (line   6)
  * bits, merge:                           MERGE_BITS.          (line   6)
- * bits, move <1>:                        TRANSFER.            (line   6)
  * bits, move:                            MVBITS.              (line   6)
  * bits, negate:                          NOT.                 (line   6)
  * bits, number of:                       BIT_SIZE.            (line   6)
  * bits, OR of array elements:            IANY.                (line   6)
  * bits, set:                             IBSET.               (line   6)
  * bits, shift:                           ISHFT.               (line   6)
  * bits, shift circular:                  ISHFTC.              (line   6)
- * bits, shift left <1>:                  SHIFTL.              (line   6)
  * bits, shift left:                      LSHIFT.              (line   6)
! * bits, shift right <1>:                 SHIFTR.              (line   6)
! * bits, shift right <2>:                 SHIFTA.              (line   6)
  * bits, shift right:                     RSHIFT.              (line   6)
  * bits, testing:                         BTEST.               (line   6)
  * bits, unset:                           IBCLR.               (line   6)
  * bits, XOR of array elements:           IPARITY.             (line   6)
- * bitwise comparison <1>:                BLT.                 (line   6)
- * bitwise comparison <2>:                BLE.                 (line   6)
- * bitwise comparison <3>:                BGT.                 (line   6)
  * bitwise comparison:                    BGE.                 (line   6)
! * bitwise logical and <1>:               IAND.                (line   6)
  * bitwise logical and:                   AND.                 (line   6)
! * bitwise logical exclusive or <1>:      XOR.                 (line   6)
  * bitwise logical exclusive or:          IEOR.                (line   6)
  * bitwise logical not:                   NOT.                 (line   6)
- * bitwise logical or <1>:                OR.                  (line   6)
  * bitwise logical or:                    IOR.                 (line   6)
  * BLE:                                   BLE.                 (line   6)
  * BLT:                                   BLT.                 (line   6)
! * bounds checking:                       Code Gen Options.    (line 143)
  * BOZ literal constants:                 BOZ literal constants.
                                                                (line   6)
  * BTEST:                                 BTEST.               (line   6)
- * C_ASSOCIATED:                          C_ASSOCIATED.        (line   6)
- * C_F_POINTER:                           C_F_POINTER.         (line   6)
- * C_F_PROCPOINTER:                       C_F_PROCPOINTER.     (line   6)
- * C_FUNLOC:                              C_FUNLOC.            (line   6)
- * C_LOC:                                 C_LOC.               (line   6)
- * C_SIZEOF:                              C_SIZEOF.            (line   6)
  * CABS:                                  ABS.                 (line   6)
  * calling convention:                    Code Gen Options.    (line  25)
  * CCOS:                                  COS.                 (line   6)
--- 19433,19480 ----
  * BESYN:                                 BESSEL_YN.           (line   6)
  * BGE:                                   BGE.                 (line   6)
  * BGT:                                   BGT.                 (line   6)
  * binary representation:                 POPCNT.              (line   6)
! * binary representation <1>:             POPPAR.              (line   6)
  * bits set:                              POPCNT.              (line   6)
  * bits, AND of array elements:           IALL.                (line   6)
  * bits, clear:                           IBCLR.               (line   6)
  * bits, extract:                         IBITS.               (line   6)
  * bits, get:                             IBITS.               (line   6)
  * bits, merge:                           MERGE_BITS.          (line   6)
  * bits, move:                            MVBITS.              (line   6)
+ * bits, move <1>:                        TRANSFER.            (line   6)
  * bits, negate:                          NOT.                 (line   6)
  * bits, number of:                       BIT_SIZE.            (line   6)
  * bits, OR of array elements:            IANY.                (line   6)
  * bits, set:                             IBSET.               (line   6)
  * bits, shift:                           ISHFT.               (line   6)
  * bits, shift circular:                  ISHFTC.              (line   6)
  * bits, shift left:                      LSHIFT.              (line   6)
! * bits, shift left <1>:                  SHIFTL.              (line   6)
  * bits, shift right:                     RSHIFT.              (line   6)
+ * bits, shift right <1>:                 SHIFTA.              (line   6)
+ * bits, shift right <2>:                 SHIFTR.              (line   6)
  * bits, testing:                         BTEST.               (line   6)
  * bits, unset:                           IBCLR.               (line   6)
  * bits, XOR of array elements:           IPARITY.             (line   6)
  * bitwise comparison:                    BGE.                 (line   6)
! * bitwise comparison <1>:                BGT.                 (line   6)
! * bitwise comparison <2>:                BLE.                 (line   6)
! * bitwise comparison <3>:                BLT.                 (line   6)
  * bitwise logical and:                   AND.                 (line   6)
! * bitwise logical and <1>:               IAND.                (line   6)
  * bitwise logical exclusive or:          IEOR.                (line   6)
+ * bitwise logical exclusive or <1>:      XOR.                 (line   6)
  * bitwise logical not:                   NOT.                 (line   6)
  * bitwise logical or:                    IOR.                 (line   6)
+ * bitwise logical or <1>:                OR.                  (line   6)
+ * BIT_SIZE:                              BIT_SIZE.            (line   6)
  * BLE:                                   BLE.                 (line   6)
  * BLT:                                   BLT.                 (line   6)
! * bounds checking:                       Code Gen Options.    (line 141)
  * BOZ literal constants:                 BOZ literal constants.
                                                                (line   6)
  * BTEST:                                 BTEST.               (line   6)
  * CABS:                                  ABS.                 (line   6)
  * calling convention:                    Code Gen Options.    (line  25)
  * CCOS:                                  COS.                 (line   6)
*************** Keyword Index
*** 19739,19766 ****
  * CDLOG:                                 LOG.                 (line   6)
  * CDSIN:                                 SIN.                 (line   6)
  * CDSQRT:                                SQRT.                (line   6)
- * ceiling:                               CEILING.             (line   6)
  * CEILING:                               CEILING.             (line   6)
  * ceiling:                               ANINT.               (line   6)
  * CEXP:                                  EXP.                 (line   6)
  * CHAR:                                  CHAR.                (line   6)
  * character kind:                        SELECTED_CHAR_KIND.  (line   6)
  * character set:                         Fortran Dialect Options.
                                                                (line  50)
  * CHDIR:                                 CHDIR.               (line   6)
! * checking array temporaries:            Code Gen Options.    (line 143)
! * checking subscripts:                   Code Gen Options.    (line 143)
  * CHMOD:                                 CHMOD.               (line   6)
- * clock ticks <1>:                       SYSTEM_CLOCK.        (line   6)
- * clock ticks <2>:                       MCLOCK8.             (line   6)
  * clock ticks:                           MCLOCK.              (line   6)
  * CLOG:                                  LOG.                 (line   6)
  * CMPLX:                                 CMPLX.               (line   6)
! * CO_BROADCAST:                          CO_BROADCAST.        (line   6)
! * CO_MAX:                                CO_MAX.              (line   6)
! * CO_MIN:                                CO_MIN.              (line   6)
! * CO_REDUCE:                             CO_REDUCE.           (line   6)
! * CO_SUM:                                CO_SUM.              (line   6)
  * Coarray, _gfortran_caf_atomic_cas:     _gfortran_caf_atomic_cas.
                                                                (line   6)
  * Coarray, _gfortran_caf_atomic_define:  _gfortran_caf_atomic_define.
--- 19484,19511 ----
  * CDLOG:                                 LOG.                 (line   6)
  * CDSIN:                                 SIN.                 (line   6)
  * CDSQRT:                                SQRT.                (line   6)
  * CEILING:                               CEILING.             (line   6)
  * ceiling:                               ANINT.               (line   6)
+ * ceiling <1>:                           CEILING.             (line   6)
  * CEXP:                                  EXP.                 (line   6)
  * CHAR:                                  CHAR.                (line   6)
  * character kind:                        SELECTED_CHAR_KIND.  (line   6)
  * character set:                         Fortran Dialect Options.
                                                                (line  50)
  * CHDIR:                                 CHDIR.               (line   6)
! * checking array temporaries:            Code Gen Options.    (line 141)
! * checking subscripts:                   Code Gen Options.    (line 141)
  * CHMOD:                                 CHMOD.               (line   6)
  * clock ticks:                           MCLOCK.              (line   6)
+ * clock ticks <1>:                       MCLOCK8.             (line   6)
+ * clock ticks <2>:                       SYSTEM_CLOCK.        (line   6)
  * CLOG:                                  LOG.                 (line   6)
  * CMPLX:                                 CMPLX.               (line   6)
! * coarray, IMAGE_INDEX:                  IMAGE_INDEX.         (line   6)
! * coarray, lower bound:                  LCOBOUND.            (line   6)
! * coarray, NUM_IMAGES:                   NUM_IMAGES.          (line   6)
! * coarray, THIS_IMAGE:                   THIS_IMAGE.          (line   6)
! * coarray, upper bound:                  UCOBOUND.            (line   6)
  * Coarray, _gfortran_caf_atomic_cas:     _gfortran_caf_atomic_cas.
                                                                (line   6)
  * Coarray, _gfortran_caf_atomic_define:  _gfortran_caf_atomic_define.
*************** Keyword Index
*** 19779,19788 ****
                                                                (line   6)
  * Coarray, _gfortran_caf_co_sum:         _gfortran_caf_co_sum.
                                                                (line   6)
- * Coarray, _gfortran_caf_deregister <1>: _gfortran_caf_deregister.
-                                                               (line   6)
  * Coarray, _gfortran_caf_deregister:     _gfortran_caf_register.
                                                                (line   6)
  * Coarray, _gfortran_caf_error_stop:     _gfortran_caf_error_stop.
                                                                (line   6)
  * Coarray, _gfortran_caf_error_stop_str: _gfortran_caf_error_stop_str.
--- 19524,19533 ----
                                                                (line   6)
  * Coarray, _gfortran_caf_co_sum:         _gfortran_caf_co_sum.
                                                                (line   6)
  * Coarray, _gfortran_caf_deregister:     _gfortran_caf_register.
                                                                (line   6)
+ * Coarray, _gfortran_caf_deregister <1>: _gfortran_caf_deregister.
+                                                               (line   6)
  * Coarray, _gfortran_caf_error_stop:     _gfortran_caf_error_stop.
                                                                (line   6)
  * Coarray, _gfortran_caf_error_stop_str: _gfortran_caf_error_stop_str.
*************** Keyword Index
*** 19813,19828 ****
                                                                (line   6)
  * Coarray, _gfortran_caf_unlock:         _gfortran_caf_unlock.
                                                                (line   6)
! * coarray, IMAGE_INDEX:                  IMAGE_INDEX.         (line   6)
! * coarray, lower bound:                  LCOBOUND.            (line   6)
! * coarray, NUM_IMAGES:                   NUM_IMAGES.          (line   6)
! * coarray, THIS_IMAGE:                   THIS_IMAGE.          (line   6)
! * coarray, upper bound:                  UCOBOUND.            (line   6)
  * Coarrays:                              Coarray Programming. (line   6)
- * coarrays:                              Code Gen Options.    (line 129)
  * code generation, conventions:          Code Gen Options.    (line   6)
- * collating sequence, ASCII <1>:         IACHAR.              (line   6)
  * collating sequence, ASCII:             ACHAR.               (line   6)
  * Collectives, generic reduction:        CO_REDUCE.           (line   6)
  * Collectives, maximal value:            CO_MAX.              (line   6)
  * Collectives, minimal value:            CO_MIN.              (line   6)
--- 19558,19568 ----
                                                                (line   6)
  * Coarray, _gfortran_caf_unlock:         _gfortran_caf_unlock.
                                                                (line   6)
! * coarrays:                              Code Gen Options.    (line 127)
  * Coarrays:                              Coarray Programming. (line   6)
  * code generation, conventions:          Code Gen Options.    (line   6)
  * collating sequence, ASCII:             ACHAR.               (line   6)
+ * collating sequence, ASCII <1>:         IACHAR.              (line   6)
  * Collectives, generic reduction:        CO_REDUCE.           (line   6)
  * Collectives, maximal value:            CO_MAX.              (line   6)
  * Collectives, minimal value:            CO_MIN.              (line   6)
*************** Keyword Index
*** 19832,19847 ****
                                                                (line   6)
  * command options:                       Invoking GNU Fortran.
                                                                (line   6)
- * command-line arguments <1>:            IARGC.               (line   6)
- * command-line arguments <2>:            GET_COMMAND_ARGUMENT.
-                                                               (line   6)
- * command-line arguments <3>:            GET_COMMAND.         (line   6)
- * command-line arguments <4>:            GETARG.              (line   6)
  * command-line arguments:                COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
! * command-line arguments, number of <1>: IARGC.               (line   6)
  * command-line arguments, number of:     COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
  * COMMAND_ARGUMENT_COUNT:                COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
  * COMMON:                                Volatile COMMON blocks.
--- 19572,19587 ----
                                                                (line   6)
  * command options:                       Invoking GNU Fortran.
                                                                (line   6)
  * command-line arguments:                COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
! * command-line arguments <1>:            GETARG.              (line   6)
! * command-line arguments <2>:            GET_COMMAND.         (line   6)
! * command-line arguments <3>:            GET_COMMAND_ARGUMENT.
!                                                               (line   6)
! * command-line arguments <4>:            IARGC.               (line   6)
  * command-line arguments, number of:     COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
+ * command-line arguments, number of <1>: IARGC.               (line   6)
  * COMMAND_ARGUMENT_COUNT:                COMMAND_ARGUMENT_COUNT.
                                                                (line   6)
  * COMMON:                                Volatile COMMON blocks.
*************** Keyword Index
*** 19854,19865 ****
  * complex conjugate:                     CONJG.               (line   6)
  * Complex function:                      Alternate complex function syntax.
                                                                (line   6)
- * complex numbers, conversion to <1>:    DCMPLX.              (line   6)
- * complex numbers, conversion to <2>:    COMPLEX.             (line   6)
  * complex numbers, conversion to:        CMPLX.               (line   6)
  * complex numbers, imaginary part:       AIMAG.               (line   6)
- * complex numbers, real part <1>:        REAL.                (line   6)
  * complex numbers, real part:            DREAL.               (line   6)
  * Conditional compilation:               Preprocessing and conditional compilation.
                                                                (line   6)
  * CONJG:                                 CONJG.               (line   6)
--- 19594,19605 ----
  * complex conjugate:                     CONJG.               (line   6)
  * Complex function:                      Alternate complex function syntax.
                                                                (line   6)
  * complex numbers, conversion to:        CMPLX.               (line   6)
+ * complex numbers, conversion to <1>:    COMPLEX.             (line   6)
+ * complex numbers, conversion to <2>:    DCMPLX.              (line   6)
  * complex numbers, imaginary part:       AIMAG.               (line   6)
  * complex numbers, real part:            DREAL.               (line   6)
+ * complex numbers, real part <1>:        REAL.                (line   6)
  * Conditional compilation:               Preprocessing and conditional compilation.
                                                                (line   6)
  * CONJG:                                 CONJG.               (line   6)
*************** Keyword Index
*** 19869,19891 ****
  * Contributors:                          Contributors.        (line   6)
  * conversion:                            Error and Warning Options.
                                                                (line 115)
  * conversion, to character:              CHAR.                (line   6)
- * conversion, to complex <1>:            DCMPLX.              (line   6)
- * conversion, to complex <2>:            COMPLEX.             (line   6)
  * conversion, to complex:                CMPLX.               (line   6)
! * conversion, to integer <1>:            LONG.                (line   6)
! * conversion, to integer <2>:            INT8.                (line   6)
! * conversion, to integer <3>:            INT2.                (line   6)
! * conversion, to integer <4>:            INT.                 (line   6)
! * conversion, to integer <5>:            ICHAR.               (line   6)
! * conversion, to integer <6>:            IACHAR.              (line   6)
  * conversion, to integer:                Implicitly convert LOGICAL and INTEGER values.
                                                                (line   6)
! * conversion, to logical <1>:            LOGICAL.             (line   6)
  * conversion, to logical:                Implicitly convert LOGICAL and INTEGER values.
                                                                (line   6)
! * conversion, to real <1>:               REAL.                (line   6)
  * conversion, to real:                   DBLE.                (line   6)
  * conversion, to string:                 CTIME.               (line   6)
  * CONVERT specifier:                     CONVERT specifier.   (line   6)
  * core, dump:                            ABORT.               (line   6)
--- 19609,19633 ----
  * Contributors:                          Contributors.        (line   6)
  * conversion:                            Error and Warning Options.
                                                                (line 115)
+ * conversion <1>:                        Error and Warning Options.
+                                                               (line 119)
  * conversion, to character:              CHAR.                (line   6)
  * conversion, to complex:                CMPLX.               (line   6)
! * conversion, to complex <1>:            COMPLEX.             (line   6)
! * conversion, to complex <2>:            DCMPLX.              (line   6)
  * conversion, to integer:                Implicitly convert LOGICAL and INTEGER values.
                                                                (line   6)
! * conversion, to integer <1>:            IACHAR.              (line   6)
! * conversion, to integer <2>:            ICHAR.               (line   6)
! * conversion, to integer <3>:            INT.                 (line   6)
! * conversion, to integer <4>:            INT2.                (line   6)
! * conversion, to integer <5>:            INT8.                (line   6)
! * conversion, to integer <6>:            LONG.                (line   6)
  * conversion, to logical:                Implicitly convert LOGICAL and INTEGER values.
                                                                (line   6)
! * conversion, to logical <1>:            LOGICAL.             (line   6)
  * conversion, to real:                   DBLE.                (line   6)
+ * conversion, to real <1>:               REAL.                (line   6)
  * conversion, to string:                 CTIME.               (line   6)
  * CONVERT specifier:                     CONVERT specifier.   (line   6)
  * core, dump:                            ABORT.               (line   6)
*************** Keyword Index
*** 19896,19919 ****
  * cosine, hyperbolic, inverse:           ACOSH.               (line   6)
  * cosine, inverse:                       ACOS.                (line   6)
  * COUNT:                                 COUNT.               (line   6)
! * CPP <1>:                               Preprocessing Options.
!                                                               (line   6)
  * CPP:                                   Preprocessing and conditional compilation.
                                                                (line   6)
  * CPU_TIME:                              CPU_TIME.            (line   6)
  * Credits:                               Contributors.        (line   6)
  * CSHIFT:                                CSHIFT.              (line   6)
  * CSIN:                                  SIN.                 (line   6)
  * CSQRT:                                 SQRT.                (line   6)
  * CTIME:                                 CTIME.               (line   6)
- * current date <1>:                      IDATE.               (line   6)
- * current date <2>:                      FDATE.               (line   6)
  * current date:                          DATE_AND_TIME.       (line   6)
! * current time <1>:                      TIME8.               (line   6)
! * current time <2>:                      TIME.                (line   6)
! * current time <3>:                      ITIME.               (line   6)
! * current time <4>:                      FDATE.               (line   6)
  * current time:                          DATE_AND_TIME.       (line   6)
  * DABS:                                  ABS.                 (line   6)
  * DACOS:                                 ACOS.                (line   6)
  * DACOSH:                                ACOSH.               (line   6)
--- 19638,19672 ----
  * cosine, hyperbolic, inverse:           ACOSH.               (line   6)
  * cosine, inverse:                       ACOS.                (line   6)
  * COUNT:                                 COUNT.               (line   6)
! * CO_BROADCAST:                          CO_BROADCAST.        (line   6)
! * CO_MAX:                                CO_MAX.              (line   6)
! * CO_MIN:                                CO_MIN.              (line   6)
! * CO_REDUCE:                             CO_REDUCE.           (line   6)
! * CO_SUM:                                CO_SUM.              (line   6)
  * CPP:                                   Preprocessing and conditional compilation.
                                                                (line   6)
+ * CPP <1>:                               Preprocessing Options.
+                                                               (line   6)
  * CPU_TIME:                              CPU_TIME.            (line   6)
  * Credits:                               Contributors.        (line   6)
  * CSHIFT:                                CSHIFT.              (line   6)
  * CSIN:                                  SIN.                 (line   6)
  * CSQRT:                                 SQRT.                (line   6)
  * CTIME:                                 CTIME.               (line   6)
  * current date:                          DATE_AND_TIME.       (line   6)
! * current date <1>:                      FDATE.               (line   6)
! * current date <2>:                      IDATE.               (line   6)
  * current time:                          DATE_AND_TIME.       (line   6)
+ * current time <1>:                      FDATE.               (line   6)
+ * current time <2>:                      ITIME.               (line   6)
+ * current time <3>:                      TIME.                (line   6)
+ * current time <4>:                      TIME8.               (line   6)
+ * C_ASSOCIATED:                          C_ASSOCIATED.        (line   6)
+ * C_FUNLOC:                              C_FUNLOC.            (line   6)
+ * C_F_POINTER:                           C_F_POINTER.         (line   6)
+ * C_F_PROCPOINTER:                       C_F_PROCPOINTER.     (line   6)
+ * C_LOC:                                 C_LOC.               (line   6)
+ * C_SIZEOF:                              C_SIZEOF.            (line   6)
  * DABS:                                  ABS.                 (line   6)
  * DACOS:                                 ACOS.                (line   6)
  * DACOSH:                                ACOSH.               (line   6)
*************** Keyword Index
*** 19922,19930 ****
  * DATAN:                                 ATAN.                (line   6)
  * DATAN2:                                ATAN2.               (line   6)
  * DATANH:                                ATANH.               (line   6)
- * date, current <1>:                     IDATE.               (line   6)
- * date, current <2>:                     FDATE.               (line   6)
  * date, current:                         DATE_AND_TIME.       (line   6)
  * DATE_AND_TIME:                         DATE_AND_TIME.       (line   6)
  * DBESJ0:                                BESSEL_J0.           (line   6)
  * DBESJ1:                                BESSEL_J1.           (line   6)
--- 19675,19683 ----
  * DATAN:                                 ATAN.                (line   6)
  * DATAN2:                                ATAN2.               (line   6)
  * DATANH:                                ATANH.               (line   6)
  * date, current:                         DATE_AND_TIME.       (line   6)
+ * date, current <1>:                     FDATE.               (line   6)
+ * date, current <2>:                     IDATE.               (line   6)
  * DATE_AND_TIME:                         DATE_AND_TIME.       (line   6)
  * DBESJ0:                                BESSEL_J0.           (line   6)
  * DBESJ1:                                BESSEL_J1.           (line   6)
*************** Keyword Index
*** 19941,19950 ****
  * debugging information options:         Debugging Options.   (line   6)
  * debugging, preprocessor:               Preprocessing Options.
                                                                (line  26)
  * DECODE:                                ENCODE and DECODE statements.
                                                                (line   6)
- * delayed execution <1>:                 SLEEP.               (line   6)
  * delayed execution:                     ALARM.               (line   6)
  * DEXP:                                  EXP.                 (line   6)
  * DFLOAT:                                REAL.                (line   6)
  * DGAMMA:                                GAMMA.               (line   6)
--- 19694,19711 ----
  * debugging information options:         Debugging Options.   (line   6)
  * debugging, preprocessor:               Preprocessing Options.
                                                                (line  26)
+ * debugging, preprocessor <1>:           Preprocessing Options.
+                                                               (line  35)
+ * debugging, preprocessor <2>:           Preprocessing Options.
+                                                               (line  41)
+ * debugging, preprocessor <3>:           Preprocessing Options.
+                                                               (line  44)
+ * debugging, preprocessor <4>:           Preprocessing Options.
+                                                               (line  51)
  * DECODE:                                ENCODE and DECODE statements.
                                                                (line   6)
  * delayed execution:                     ALARM.               (line   6)
+ * delayed execution <1>:                 SLEEP.               (line   6)
  * DEXP:                                  EXP.                 (line   6)
  * DFLOAT:                                REAL.                (line   6)
  * DGAMMA:                                GAMMA.               (line   6)
*************** Keyword Index
*** 19981,20000 ****
  * DTIME:                                 DTIME.               (line   6)
  * dummy argument, unused:                Error and Warning Options.
                                                                (line 199)
- * elapsed time <1>:                      SECOND.              (line   6)
- * elapsed time <2>:                      SECNDS.              (line   6)
  * elapsed time:                          DTIME.               (line   6)
  * Elimination of functions with identical argument lists: Code Gen Options.
!                                                               (line 365)
  * ENCODE:                                ENCODE and DECODE statements.
                                                                (line   6)
  * ENUM statement:                        Fortran 2003 status. (line  93)
  * ENUMERATOR statement:                  Fortran 2003 status. (line  93)
! * environment variable <1>:              GET_ENVIRONMENT_VARIABLE.
                                                                (line   6)
  * environment variable <2>:              GETENV.              (line   6)
! * environment variable <3>:              Runtime.             (line   6)
! * environment variable:                  Environment Variables.
                                                                (line   6)
  * EOF:                                   Read/Write after EOF marker.
                                                                (line   6)
--- 19742,19761 ----
  * DTIME:                                 DTIME.               (line   6)
  * dummy argument, unused:                Error and Warning Options.
                                                                (line 199)
  * elapsed time:                          DTIME.               (line   6)
+ * elapsed time <1>:                      SECNDS.              (line   6)
+ * elapsed time <2>:                      SECOND.              (line   6)
  * Elimination of functions with identical argument lists: Code Gen Options.
!                                                               (line 361)
  * ENCODE:                                ENCODE and DECODE statements.
                                                                (line   6)
  * ENUM statement:                        Fortran 2003 status. (line  93)
  * ENUMERATOR statement:                  Fortran 2003 status. (line  93)
! * environment variable:                  Environment Variables.
                                                                (line   6)
+ * environment variable <1>:              Runtime.             (line   6)
  * environment variable <2>:              GETENV.              (line   6)
! * environment variable <3>:              GET_ENVIRONMENT_VARIABLE.
                                                                (line   6)
  * EOF:                                   Read/Write after EOF marker.
                                                                (line   6)
*************** Keyword Index
*** 20014,20031 ****
  * ETIME:                                 ETIME.               (line   6)
  * Euclidean distance:                    HYPOT.               (line   6)
  * Euclidean vector norm:                 NORM2.               (line   6)
- * EVENT_QUERY:                           EVENT_QUERY.         (line   6)
  * Events, EVENT_QUERY:                   EVENT_QUERY.         (line   6)
  * EXECUTE_COMMAND_LINE:                  EXECUTE_COMMAND_LINE.
                                                                (line   6)
  * EXIT:                                  EXIT.                (line   6)
  * EXP:                                   EXP.                 (line   6)
  * EXPONENT:                              EXPONENT.            (line   6)
  * exponential function:                  EXP.                 (line   6)
- * exponential function, inverse <1>:     LOG10.               (line   6)
  * exponential function, inverse:         LOG.                 (line   6)
! * expression size <1>:                   SIZEOF.              (line   6)
  * expression size:                       C_SIZEOF.            (line   6)
  * EXTENDS_TYPE_OF:                       EXTENDS_TYPE_OF.     (line   6)
  * extensions:                            Extensions.          (line   6)
  * extensions, implemented:               Extensions implemented in GNU Fortran.
--- 19775,19792 ----
  * ETIME:                                 ETIME.               (line   6)
  * Euclidean distance:                    HYPOT.               (line   6)
  * Euclidean vector norm:                 NORM2.               (line   6)
  * Events, EVENT_QUERY:                   EVENT_QUERY.         (line   6)
+ * EVENT_QUERY:                           EVENT_QUERY.         (line   6)
  * EXECUTE_COMMAND_LINE:                  EXECUTE_COMMAND_LINE.
                                                                (line   6)
  * EXIT:                                  EXIT.                (line   6)
  * EXP:                                   EXP.                 (line   6)
  * EXPONENT:                              EXPONENT.            (line   6)
  * exponential function:                  EXP.                 (line   6)
  * exponential function, inverse:         LOG.                 (line   6)
! * exponential function, inverse <1>:     LOG10.               (line   6)
  * expression size:                       C_SIZEOF.            (line   6)
+ * expression size <1>:                   SIZEOF.              (line   6)
  * EXTENDS_TYPE_OF:                       EXTENDS_TYPE_OF.     (line   6)
  * extensions:                            Extensions.          (line   6)
  * extensions, implemented:               Extensions implemented in GNU Fortran.
*************** Keyword Index
*** 20035,20040 ****
--- 19796,19802 ----
  * extra warnings:                        Error and Warning Options.
                                                                (line 123)
  * f2c calling convention:                Code Gen Options.    (line  25)
+ * f2c calling convention <1>:            Code Gen Options.    (line 110)
  * Factorial function:                    GAMMA.               (line   6)
  * FDATE:                                 FDATE.               (line   6)
  * FDL, GNU Free Documentation License:   GNU Free Documentation License.
*************** Keyword Index
*** 20043,20067 ****
  * FGETC:                                 FGETC.               (line   6)
  * file format, fixed:                    Fortran Dialect Options.
                                                                (line  11)
  * file format, free:                     Fortran Dialect Options.
                                                                (line  11)
  * file operation, file number:           FNUM.                (line   6)
  * file operation, flush:                 FLUSH.               (line   6)
- * file operation, position <1>:          FTELL.               (line   6)
  * file operation, position:              FSEEK.               (line   6)
! * file operation, read character <1>:    FGETC.               (line   6)
  * file operation, read character:        FGET.                (line   6)
  * file operation, seek:                  FSEEK.               (line   6)
- * file operation, write character <1>:   FPUTC.               (line   6)
  * file operation, write character:       FPUT.                (line   6)
  * file system, access mode:              ACCESS.              (line   6)
  * file system, change access mode:       CHMOD.               (line   6)
- * file system, create link <1>:          SYMLNK.              (line   6)
  * file system, create link:              LINK.                (line   6)
  * file system, file creation mask:       UMASK.               (line   6)
- * file system, file status <1>:          STAT.                (line   6)
- * file system, file status <2>:          LSTAT.               (line   6)
  * file system, file status:              FSTAT.               (line   6)
  * file system, hard link:                LINK.                (line   6)
  * file system, remove file:              UNLINK.              (line   6)
  * file system, rename file:              RENAME.              (line   6)
--- 19805,19833 ----
  * FGETC:                                 FGETC.               (line   6)
  * file format, fixed:                    Fortran Dialect Options.
                                                                (line  11)
+ * file format, fixed <1>:                Fortran Dialect Options.
+                                                               (line  73)
  * file format, free:                     Fortran Dialect Options.
                                                                (line  11)
+ * file format, free <1>:                 Fortran Dialect Options.
+                                                               (line  86)
  * file operation, file number:           FNUM.                (line   6)
  * file operation, flush:                 FLUSH.               (line   6)
  * file operation, position:              FSEEK.               (line   6)
! * file operation, position <1>:          FTELL.               (line   6)
  * file operation, read character:        FGET.                (line   6)
+ * file operation, read character <1>:    FGETC.               (line   6)
  * file operation, seek:                  FSEEK.               (line   6)
  * file operation, write character:       FPUT.                (line   6)
+ * file operation, write character <1>:   FPUTC.               (line   6)
  * file system, access mode:              ACCESS.              (line   6)
  * file system, change access mode:       CHMOD.               (line   6)
  * file system, create link:              LINK.                (line   6)
+ * file system, create link <1>:          SYMLNK.              (line   6)
  * file system, file creation mask:       UMASK.               (line   6)
  * file system, file status:              FSTAT.               (line   6)
+ * file system, file status <1>:          LSTAT.               (line   6)
+ * file system, file status <2>:          STAT.                (line   6)
  * file system, hard link:                LINK.                (line   6)
  * file system, remove file:              UNLINK.              (line   6)
  * file system, rename file:              RENAME.              (line   6)
*************** Keyword Index
*** 20073,20085 ****
  * floating point, exponent:              EXPONENT.            (line   6)
  * floating point, fraction:              FRACTION.            (line   6)
  * floating point, nearest different:     NEAREST.             (line   6)
- * floating point, relative spacing <1>:  SPACING.             (line   6)
  * floating point, relative spacing:      RRSPACING.           (line   6)
  * floating point, scale:                 SCALE.               (line   6)
  * floating point, set exponent:          SET_EXPONENT.        (line   6)
- * floor:                                 FLOOR.               (line   6)
  * FLOOR:                                 FLOOR.               (line   6)
  * floor:                                 AINT.                (line   6)
  * FLUSH:                                 FLUSH.               (line   6)
  * FLUSH statement:                       Fortran 2003 status. (line  89)
  * FNUM:                                  FNUM.                (line   6)
--- 19839,19851 ----
  * floating point, exponent:              EXPONENT.            (line   6)
  * floating point, fraction:              FRACTION.            (line   6)
  * floating point, nearest different:     NEAREST.             (line   6)
  * floating point, relative spacing:      RRSPACING.           (line   6)
+ * floating point, relative spacing <1>:  SPACING.             (line   6)
  * floating point, scale:                 SCALE.               (line   6)
  * floating point, set exponent:          SET_EXPONENT.        (line   6)
  * FLOOR:                                 FLOOR.               (line   6)
  * floor:                                 AINT.                (line   6)
+ * floor <1>:                             FLOOR.               (line   6)
  * FLUSH:                                 FLUSH.               (line   6)
  * FLUSH statement:                       Fortran 2003 status. (line  89)
  * FNUM:                                  FNUM.                (line   6)
*************** Keyword Index
*** 20092,20098 ****
  * FPUTC:                                 FPUTC.               (line   6)
  * FRACTION:                              FRACTION.            (line   6)
  * FREE:                                  FREE.                (line   6)
! * Front-end optimization:                Code Gen Options.    (line 373)
  * FSEEK:                                 FSEEK.               (line   6)
  * FSTAT:                                 FSTAT.               (line   6)
  * FTELL:                                 FTELL.               (line   6)
--- 19858,19864 ----
  * FPUTC:                                 FPUTC.               (line   6)
  * FRACTION:                              FRACTION.            (line   6)
  * FREE:                                  FREE.                (line   6)
! * Front-end optimization:                Code Gen Options.    (line 369)
  * FSEEK:                                 FSEEK.               (line   6)
  * FSTAT:                                 FSTAT.               (line   6)
  * FTELL:                                 FTELL.               (line   6)
*************** Keyword Index
*** 20100,20115 ****
                                                                (line 216)
  * g77:                                   GNU Fortran and G77. (line   6)
  * g77 calling convention:                Code Gen Options.    (line  25)
  * GAMMA:                                 GAMMA.               (line   6)
  * Gamma function:                        GAMMA.               (line   6)
  * Gamma function, logarithm of:          LOG_GAMMA.           (line   6)
  * GCC:                                   GNU Fortran and GCC. (line   6)
  * GERROR:                                GERROR.              (line   6)
- * GET_COMMAND:                           GET_COMMAND.         (line   6)
- * GET_COMMAND_ARGUMENT:                  GET_COMMAND_ARGUMENT.
-                                                               (line   6)
- * GET_ENVIRONMENT_VARIABLE:              GET_ENVIRONMENT_VARIABLE.
-                                                               (line   6)
  * GETARG:                                GETARG.              (line   6)
  * GETCWD:                                GETCWD.              (line   6)
  * GETENV:                                GETENV.              (line   6)
--- 19866,19877 ----
                                                                (line 216)
  * g77:                                   GNU Fortran and G77. (line   6)
  * g77 calling convention:                Code Gen Options.    (line  25)
+ * g77 calling convention <1>:            Code Gen Options.    (line 110)
  * GAMMA:                                 GAMMA.               (line   6)
  * Gamma function:                        GAMMA.               (line   6)
  * Gamma function, logarithm of:          LOG_GAMMA.           (line   6)
  * GCC:                                   GNU Fortran and GCC. (line   6)
  * GERROR:                                GERROR.              (line   6)
  * GETARG:                                GETARG.              (line   6)
  * GETCWD:                                GETCWD.              (line   6)
  * GETENV:                                GETENV.              (line   6)
*************** Keyword Index
*** 20117,20122 ****
--- 19879,19889 ----
  * GETLOG:                                GETLOG.              (line   6)
  * GETPID:                                GETPID.              (line   6)
  * GETUID:                                GETUID.              (line   6)
+ * GET_COMMAND:                           GET_COMMAND.         (line   6)
+ * GET_COMMAND_ARGUMENT:                  GET_COMMAND_ARGUMENT.
+                                                               (line   6)
+ * GET_ENVIRONMENT_VARIABLE:              GET_ENVIRONMENT_VARIABLE.
+                                                               (line   6)
  * GMTIME:                                GMTIME.              (line   6)
  * GNU Compiler Collection:               GNU Fortran and GCC. (line   6)
  * GNU Fortran command options:           Invoking GNU Fortran.
*************** Keyword Index
*** 20155,20166 ****
  * IERRNO:                                IERRNO.              (line   6)
  * IFIX:                                  INT.                 (line   6)
  * IMAG:                                  AIMAG.               (line   6)
- * IMAGE_INDEX:                           IMAGE_INDEX.         (line   6)
  * images, cosubscript to image index conversion: IMAGE_INDEX. (line   6)
  * images, index of this image:           THIS_IMAGE.          (line   6)
  * images, number of:                     NUM_IMAGES.          (line   6)
  * IMAGPART:                              AIMAG.               (line   6)
! * IMPORT statement:                      Fortran 2003 status. (line 122)
  * INCLUDE directive:                     Directory Options.   (line   6)
  * inclusion, directory search paths for: Directory Options.   (line  14)
  * INDEX:                                 INDEX intrinsic.     (line   6)
--- 19922,19933 ----
  * IERRNO:                                IERRNO.              (line   6)
  * IFIX:                                  INT.                 (line   6)
  * IMAG:                                  AIMAG.               (line   6)
  * images, cosubscript to image index conversion: IMAGE_INDEX. (line   6)
  * images, index of this image:           THIS_IMAGE.          (line   6)
  * images, number of:                     NUM_IMAGES.          (line   6)
+ * IMAGE_INDEX:                           IMAGE_INDEX.         (line   6)
  * IMAGPART:                              AIMAG.               (line   6)
! * IMPORT statement:                      Fortran 2003 status. (line 120)
  * INCLUDE directive:                     Directory Options.   (line   6)
  * inclusion, directory search paths for: Directory Options.   (line  14)
  * INDEX:                                 INDEX intrinsic.     (line   6)
*************** Keyword Index
*** 20172,20177 ****
--- 19939,19946 ----
                                                                (line   6)
  * intrinsic:                             Error and Warning Options.
                                                                (line 188)
+ * intrinsic <1>:                         Error and Warning Options.
+                                                               (line 195)
  * intrinsic Modules:                     Intrinsic Modules.   (line   6)
  * intrinsic procedures:                  Intrinsic Procedures.
                                                                (line   6)
*************** Keyword Index
*** 20185,20204 ****
  * IOSTAT, end of record:                 IS_IOSTAT_EOR.       (line   6)
  * IPARITY:                               IPARITY.             (line   6)
  * IRAND:                                 IRAND.               (line   6)
- * IS_IOSTAT_END:                         IS_IOSTAT_END.       (line   6)
- * IS_IOSTAT_EOR:                         IS_IOSTAT_EOR.       (line   6)
  * ISATTY:                                ISATTY.              (line   6)
  * ISHFT:                                 ISHFT.               (line   6)
  * ISHFTC:                                ISHFTC.              (line   6)
  * ISIGN:                                 SIGN.                (line   6)
  * ISNAN:                                 ISNAN.               (line   6)
! * ISO_FORTRAN_ENV statement:             Fortran 2003 status. (line 130)
  * ITIME:                                 ITIME.               (line   6)
  * KILL:                                  KILL.                (line   6)
- * kind:                                  KIND.                (line   6)
- * KIND:                                  KIND.                (line   6)
  * kind:                                  KIND Type Parameters.
                                                                (line   6)
  * kind, character:                       SELECTED_CHAR_KIND.  (line   6)
  * kind, integer:                         SELECTED_INT_KIND.   (line   6)
  * kind, old-style:                       Old-style kind specifications.
--- 19954,19973 ----
  * IOSTAT, end of record:                 IS_IOSTAT_EOR.       (line   6)
  * IPARITY:                               IPARITY.             (line   6)
  * IRAND:                                 IRAND.               (line   6)
  * ISATTY:                                ISATTY.              (line   6)
  * ISHFT:                                 ISHFT.               (line   6)
  * ISHFTC:                                ISHFTC.              (line   6)
  * ISIGN:                                 SIGN.                (line   6)
  * ISNAN:                                 ISNAN.               (line   6)
! * ISO_FORTRAN_ENV statement:             Fortran 2003 status. (line 128)
! * IS_IOSTAT_END:                         IS_IOSTAT_END.       (line   6)
! * IS_IOSTAT_EOR:                         IS_IOSTAT_EOR.       (line   6)
  * ITIME:                                 ITIME.               (line   6)
  * KILL:                                  KILL.                (line   6)
  * kind:                                  KIND Type Parameters.
                                                                (line   6)
+ * KIND:                                  KIND.                (line   6)
+ * kind <1>:                              KIND.                (line   6)
  * kind, character:                       SELECTED_CHAR_KIND.  (line   6)
  * kind, integer:                         SELECTED_INT_KIND.   (line   6)
  * kind, old-style:                       Old-style kind specifications.
*************** Keyword Index
*** 20213,20226 ****
  * left shift, combined:                  DSHIFTL.             (line   6)
  * LEN:                                   LEN.                 (line   6)
  * LEN_TRIM:                              LEN_TRIM.            (line   6)
- * lexical comparison of strings <1>:     LLT.                 (line   6)
- * lexical comparison of strings <2>:     LLE.                 (line   6)
- * lexical comparison of strings <3>:     LGT.                 (line   6)
  * lexical comparison of strings:         LGE.                 (line   6)
  * LGAMMA:                                LOG_GAMMA.           (line   6)
  * LGE:                                   LGE.                 (line   6)
  * LGT:                                   LGT.                 (line   6)
  * libf2c calling convention:             Code Gen Options.    (line  25)
  * libgfortran initialization, set_args:  _gfortran_set_args.  (line   6)
  * libgfortran initialization, set_convert: _gfortran_set_convert.
                                                                (line   6)
--- 19982,19996 ----
  * left shift, combined:                  DSHIFTL.             (line   6)
  * LEN:                                   LEN.                 (line   6)
  * LEN_TRIM:                              LEN_TRIM.            (line   6)
  * lexical comparison of strings:         LGE.                 (line   6)
+ * lexical comparison of strings <1>:     LGT.                 (line   6)
+ * lexical comparison of strings <2>:     LLE.                 (line   6)
+ * lexical comparison of strings <3>:     LLT.                 (line   6)
  * LGAMMA:                                LOG_GAMMA.           (line   6)
  * LGE:                                   LGE.                 (line   6)
  * LGT:                                   LGT.                 (line   6)
  * libf2c calling convention:             Code Gen Options.    (line  25)
+ * libf2c calling convention <1>:         Code Gen Options.    (line 110)
  * libgfortran initialization, set_args:  _gfortran_set_args.  (line   6)
  * libgfortran initialization, set_convert: _gfortran_set_convert.
                                                                (line   6)
*************** Keyword Index
*** 20242,20262 ****
  * location of a variable in memory:      LOC.                 (line   6)
  * LOG:                                   LOG.                 (line   6)
  * LOG10:                                 LOG10.               (line   6)
- * LOG_GAMMA:                             LOG_GAMMA.           (line   6)
  * logarithm function:                    LOG.                 (line   6)
  * logarithm function with base 10:       LOG10.               (line   6)
  * logarithm function, inverse:           EXP.                 (line   6)
  * LOGICAL:                               LOGICAL.             (line   6)
- * logical and, bitwise <1>:              IAND.                (line   6)
  * logical and, bitwise:                  AND.                 (line   6)
! * logical exclusive or, bitwise <1>:     XOR.                 (line   6)
  * logical exclusive or, bitwise:         IEOR.                (line   6)
  * logical not, bitwise:                  NOT.                 (line   6)
- * logical or, bitwise <1>:               OR.                  (line   6)
  * logical or, bitwise:                   IOR.                 (line   6)
  * logical, variable representation:      Internal representation of LOGICAL variables.
                                                                (line   6)
  * login name:                            GETLOG.              (line   6)
  * LONG:                                  LONG.                (line   6)
  * LSHIFT:                                LSHIFT.              (line   6)
  * LSTAT:                                 LSTAT.               (line   6)
--- 20012,20032 ----
  * location of a variable in memory:      LOC.                 (line   6)
  * LOG:                                   LOG.                 (line   6)
  * LOG10:                                 LOG10.               (line   6)
  * logarithm function:                    LOG.                 (line   6)
  * logarithm function with base 10:       LOG10.               (line   6)
  * logarithm function, inverse:           EXP.                 (line   6)
  * LOGICAL:                               LOGICAL.             (line   6)
  * logical and, bitwise:                  AND.                 (line   6)
! * logical and, bitwise <1>:              IAND.                (line   6)
  * logical exclusive or, bitwise:         IEOR.                (line   6)
+ * logical exclusive or, bitwise <1>:     XOR.                 (line   6)
  * logical not, bitwise:                  NOT.                 (line   6)
  * logical or, bitwise:                   IOR.                 (line   6)
+ * logical or, bitwise <1>:               OR.                  (line   6)
  * logical, variable representation:      Internal representation of LOGICAL variables.
                                                                (line   6)
  * login name:                            GETLOG.              (line   6)
+ * LOG_GAMMA:                             LOG_GAMMA.           (line   6)
  * LONG:                                  LONG.                (line   6)
  * LSHIFT:                                LSHIFT.              (line   6)
  * LSTAT:                                 LSTAT.               (line   6)
*************** Keyword Index
*** 20274,20286 ****
  * MAX0:                                  MAX.                 (line   6)
  * MAX1:                                  MAX.                 (line   6)
  * MAXEXPONENT:                           MAXEXPONENT.         (line   6)
- * maximum value <1>:                     MAXVAL.              (line   6)
  * maximum value:                         MAX.                 (line   6)
  * MAXLOC:                                MAXLOC.              (line   6)
  * MAXVAL:                                MAXVAL.              (line   6)
  * MCLOCK:                                MCLOCK.              (line   6)
  * MCLOCK8:                               MCLOCK8.             (line   6)
! * memory checking:                       Code Gen Options.    (line 143)
  * MERGE:                                 MERGE.               (line   6)
  * MERGE_BITS:                            MERGE_BITS.          (line   6)
  * messages, error:                       Error and Warning Options.
--- 20044,20056 ----
  * MAX0:                                  MAX.                 (line   6)
  * MAX1:                                  MAX.                 (line   6)
  * MAXEXPONENT:                           MAXEXPONENT.         (line   6)
  * maximum value:                         MAX.                 (line   6)
+ * maximum value <1>:                     MAXVAL.              (line   6)
  * MAXLOC:                                MAXLOC.              (line   6)
  * MAXVAL:                                MAXVAL.              (line   6)
  * MCLOCK:                                MCLOCK.              (line   6)
  * MCLOCK8:                               MCLOCK8.             (line   6)
! * memory checking:                       Code Gen Options.    (line 141)
  * MERGE:                                 MERGE.               (line   6)
  * MERGE_BITS:                            MERGE_BITS.          (line   6)
  * messages, error:                       Error and Warning Options.
*************** Keyword Index
*** 20291,20298 ****
  * MIN0:                                  MIN.                 (line   6)
  * MIN1:                                  MIN.                 (line   6)
  * MINEXPONENT:                           MINEXPONENT.         (line   6)
- * minimum value <1>:                     MINVAL.              (line   6)
  * minimum value:                         MIN.                 (line   6)
  * MINLOC:                                MINLOC.              (line   6)
  * MINVAL:                                MINVAL.              (line   6)
  * Mixed-language programming:            Mixed-Language Programming.
--- 20061,20068 ----
  * MIN0:                                  MIN.                 (line   6)
  * MIN1:                                  MIN.                 (line   6)
  * MINEXPONENT:                           MINEXPONENT.         (line   6)
  * minimum value:                         MIN.                 (line   6)
+ * minimum value <1>:                     MINVAL.              (line   6)
  * MINLOC:                                MINLOC.              (line   6)
  * MINVAL:                                MINVAL.              (line   6)
  * Mixed-language programming:            Mixed-Language Programming.
*************** Keyword Index
*** 20311,20318 ****
  * module entities:                       Fortran Dialect Options.
                                                                (line  68)
  * module search path:                    Directory Options.   (line  14)
! * modulo:                                MODULO.              (line   6)
  * MODULO:                                MODULO.              (line   6)
  * MOVE_ALLOC:                            MOVE_ALLOC.          (line   6)
  * moving allocation:                     MOVE_ALLOC.          (line   6)
  * multiply array elements:               PRODUCT.             (line   6)
--- 20081,20090 ----
  * module entities:                       Fortran Dialect Options.
                                                                (line  68)
  * module search path:                    Directory Options.   (line  14)
! * module search path <1>:                Directory Options.   (line  29)
! * module search path <2>:                Directory Options.   (line  36)
  * MODULO:                                MODULO.              (line   6)
+ * modulo:                                MODULO.              (line   6)
  * MOVE_ALLOC:                            MOVE_ALLOC.          (line   6)
  * moving allocation:                     MOVE_ALLOC.          (line   6)
  * multiply array elements:               PRODUCT.             (line   6)
*************** Keyword Index
*** 20322,20329 ****
                                                                (line   6)
  * natural logarithm function:            LOG.                 (line   6)
  * NEAREST:                               NEAREST.             (line   6)
- * NEW_LINE:                              NEW_LINE.            (line   6)
  * newline:                               NEW_LINE.            (line   6)
  * NINT:                                  NINT.                (line   6)
  * norm, Euclidean:                       NORM2.               (line   6)
  * NORM2:                                 NORM2.               (line   6)
--- 20094,20101 ----
                                                                (line   6)
  * natural logarithm function:            LOG.                 (line   6)
  * NEAREST:                               NEAREST.             (line   6)
  * newline:                               NEW_LINE.            (line   6)
+ * NEW_LINE:                              NEW_LINE.            (line   6)
  * NINT:                                  NINT.                (line   6)
  * norm, Euclidean:                       NORM2.               (line   6)
  * NORM2:                                 NORM2.               (line   6)
*************** Keyword Index
*** 20332,20343 ****
  * NUM_IMAGES:                            NUM_IMAGES.          (line   6)
  * open, action:                          Files opened without an explicit ACTION= specifier.
                                                                (line   6)
- * OpenACC <1>:                           OpenACC.             (line   6)
  * OpenACC:                               Fortran Dialect Options.
                                                                (line 106)
! * OpenMP <1>:                            OpenMP.              (line   6)
  * OpenMP:                                Fortran Dialect Options.
!                                                               (line 118)
  * operators, unary:                      Unary operators.     (line   6)
  * options inquiry function:              COMPILER_OPTIONS.    (line   6)
  * options, code generation:              Code Gen Options.    (line   6)
--- 20104,20115 ----
  * NUM_IMAGES:                            NUM_IMAGES.          (line   6)
  * open, action:                          Files opened without an explicit ACTION= specifier.
                                                                (line   6)
  * OpenACC:                               Fortran Dialect Options.
                                                                (line 106)
! * OpenACC <1>:                           OpenACC.             (line   6)
  * OpenMP:                                Fortran Dialect Options.
!                                                               (line 117)
! * OpenMP <1>:                            OpenMP.              (line   6)
  * operators, unary:                      Unary operators.     (line   6)
  * options inquiry function:              COMPILER_OPTIONS.    (line   6)
  * options, code generation:              Code Gen Options.    (line   6)
*************** Keyword Index
*** 20357,20363 ****
  * options, preprocessor:                 Preprocessing Options.
                                                                (line   6)
  * options, real kind type promotion:     Fortran Dialect Options.
!                                                               (line 177)
  * options, run-time:                     Code Gen Options.    (line   6)
  * options, runtime:                      Runtime Options.     (line   6)
  * options, warnings:                     Error and Warning Options.
--- 20129,20135 ----
  * options, preprocessor:                 Preprocessing Options.
                                                                (line   6)
  * options, real kind type promotion:     Fortran Dialect Options.
!                                                               (line 175)
  * options, run-time:                     Code Gen Options.    (line   6)
  * options, runtime:                      Runtime Options.     (line   6)
  * options, warnings:                     Error and Warning Options.
*************** Keyword Index
*** 20365,20386 ****
  * OR:                                    OR.                  (line   6)
  * output, newline:                       NEW_LINE.            (line   6)
  * PACK:                                  PACK.                (line   6)
- * parity:                                POPPAR.              (line   6)
- * Parity:                                PARITY.              (line   6)
  * PARITY:                                PARITY.              (line   6)
  * paths, search:                         Directory Options.   (line  14)
  * PERROR:                                PERROR.              (line   6)
! * pointer checking:                      Code Gen Options.    (line 143)
  * pointer, C address of pointers:        C_F_PROCPOINTER.     (line   6)
  * pointer, C address of procedures:      C_FUNLOC.            (line   6)
  * pointer, C association status:         C_ASSOCIATED.        (line   6)
  * pointer, convert C to Fortran:         C_F_POINTER.         (line   6)
- * pointer, cray <1>:                     MALLOC.              (line   6)
- * pointer, cray:                         FREE.                (line   6)
  * pointer, Cray:                         Cray pointers.       (line   6)
  * pointer, disassociated:                NULL.                (line   6)
- * pointer, status <1>:                   NULL.                (line   6)
  * pointer, status:                       ASSOCIATED.          (line   6)
  * POPCNT:                                POPCNT.              (line   6)
  * POPPAR:                                POPPAR.              (line   6)
  * positive difference:                   DIM.                 (line   6)
--- 20137,20160 ----
  * OR:                                    OR.                  (line   6)
  * output, newline:                       NEW_LINE.            (line   6)
  * PACK:                                  PACK.                (line   6)
  * PARITY:                                PARITY.              (line   6)
+ * Parity:                                PARITY.              (line   6)
+ * parity:                                POPPAR.              (line   6)
  * paths, search:                         Directory Options.   (line  14)
+ * paths, search <1>:                     Directory Options.   (line  29)
+ * paths, search <2>:                     Directory Options.   (line  36)
  * PERROR:                                PERROR.              (line   6)
! * pointer checking:                      Code Gen Options.    (line 141)
  * pointer, C address of pointers:        C_F_PROCPOINTER.     (line   6)
  * pointer, C address of procedures:      C_FUNLOC.            (line   6)
  * pointer, C association status:         C_ASSOCIATED.        (line   6)
  * pointer, convert C to Fortran:         C_F_POINTER.         (line   6)
  * pointer, Cray:                         Cray pointers.       (line   6)
+ * pointer, cray:                         FREE.                (line   6)
+ * pointer, cray <1>:                     MALLOC.              (line   6)
  * pointer, disassociated:                NULL.                (line   6)
  * pointer, status:                       ASSOCIATED.          (line   6)
+ * pointer, status <1>:                   NULL.                (line   6)
  * POPCNT:                                POPCNT.              (line   6)
  * POPPAR:                                POPPAR.              (line   6)
  * positive difference:                   DIM.                 (line   6)
*************** Keyword Index
*** 20388,20408 ****
  * Preprocessing:                         Preprocessing and conditional compilation.
                                                                (line   6)
  * preprocessing, assertion:              Preprocessing Options.
!                                                               (line 114)
  * preprocessing, define macros:          Preprocessing Options.
!                                                               (line 153)
  * preprocessing, include path:           Preprocessing Options.
!                                                               (line  70)
  * preprocessing, keep comments:          Preprocessing Options.
!                                                               (line 123)
  * preprocessing, no linemarkers:         Preprocessing Options.
!                                                               (line 181)
  * preprocessing, undefine macros:        Preprocessing Options.
!                                                               (line 187)
  * preprocessor:                          Preprocessing Options.
                                                                (line   6)
  * preprocessor, debugging:               Preprocessing Options.
                                                                (line  26)
  * preprocessor, disable:                 Preprocessing Options.
                                                                (line  12)
  * preprocessor, enable:                  Preprocessing Options.
--- 20162,20206 ----
  * Preprocessing:                         Preprocessing and conditional compilation.
                                                                (line   6)
  * preprocessing, assertion:              Preprocessing Options.
!                                                               (line 113)
! * preprocessing, assertion <1>:          Preprocessing Options.
!                                                               (line 119)
  * preprocessing, define macros:          Preprocessing Options.
!                                                               (line 151)
! * preprocessing, define macros <1>:      Preprocessing Options.
!                                                               (line 154)
  * preprocessing, include path:           Preprocessing Options.
!                                                               (line  69)
! * preprocessing, include path <1>:       Preprocessing Options.
!                                                               (line  76)
! * preprocessing, include path <2>:       Preprocessing Options.
!                                                               (line  80)
! * preprocessing, include path <3>:       Preprocessing Options.
!                                                               (line  85)
! * preprocessing, include path <4>:       Preprocessing Options.
!                                                               (line  89)
! * preprocessing, include path <5>:       Preprocessing Options.
!                                                               (line  96)
  * preprocessing, keep comments:          Preprocessing Options.
!                                                               (line 122)
! * preprocessing, keep comments <1>:      Preprocessing Options.
!                                                               (line 137)
  * preprocessing, no linemarkers:         Preprocessing Options.
!                                                               (line 179)
  * preprocessing, undefine macros:        Preprocessing Options.
!                                                               (line 185)
  * preprocessor:                          Preprocessing Options.
                                                                (line   6)
  * preprocessor, debugging:               Preprocessing Options.
                                                                (line  26)
+ * preprocessor, debugging <1>:           Preprocessing Options.
+                                                               (line  35)
+ * preprocessor, debugging <2>:           Preprocessing Options.
+                                                               (line  41)
+ * preprocessor, debugging <3>:           Preprocessing Options.
+                                                               (line  44)
+ * preprocessor, debugging <4>:           Preprocessing Options.
+                                                               (line  51)
  * preprocessor, disable:                 Preprocessing Options.
                                                                (line  12)
  * preprocessor, enable:                  Preprocessing Options.
*************** Keyword Index
*** 20422,20459 ****
  * product, vector:                       DOT_PRODUCT.         (line   6)
  * program termination:                   EXIT.                (line   6)
  * program termination, with core dump:   ABORT.               (line   6)
! * PROTECTED statement:                   Fortran 2003 status. (line 116)
  * Q exponent-letter:                     Q exponent-letter.   (line   6)
  * RADIX:                                 RADIX.               (line   6)
  * radix, real:                           SELECTED_REAL_KIND.  (line   6)
  * RAN:                                   RAN.                 (line   6)
  * RAND:                                  RAND.                (line   6)
- * random number generation <1>:          RANDOM_NUMBER.       (line   6)
- * random number generation <2>:          RAND.                (line   6)
- * random number generation <3>:          RAN.                 (line   6)
  * random number generation:              IRAND.               (line   6)
! * random number generation, seeding <1>: SRAND.               (line   6)
  * random number generation, seeding:     RANDOM_SEED.         (line   6)
  * RANDOM_NUMBER:                         RANDOM_NUMBER.       (line   6)
  * RANDOM_SEED:                           RANDOM_SEED.         (line   6)
  * RANGE:                                 RANGE.               (line   6)
! * range checking:                        Code Gen Options.    (line 143)
! * rank:                                  RANK.                (line   6)
  * RANK:                                  RANK.                (line   6)
  * re-association of parenthesized expressions: Code Gen Options.
!                                                               (line 350)
! * read character, stream mode <1>:       FGETC.               (line   6)
  * read character, stream mode:           FGET.                (line   6)
  * REAL:                                  REAL.                (line   6)
  * real kind:                             SELECTED_REAL_KIND.  (line   6)
  * real number, exponent:                 EXPONENT.            (line   6)
  * real number, fraction:                 FRACTION.            (line   6)
  * real number, nearest different:        NEAREST.             (line   6)
- * real number, relative spacing <1>:     SPACING.             (line   6)
  * real number, relative spacing:         RRSPACING.           (line   6)
  * real number, scale:                    SCALE.               (line   6)
  * real number, set exponent:             SET_EXPONENT.        (line   6)
! * Reallocate the LHS in assignments:     Code Gen Options.    (line 359)
  * Reallocate the LHS in assignments, notification: Error and Warning Options.
                                                                (line 220)
  * REALPART:                              REAL.                (line   6)
--- 20220,20257 ----
  * product, vector:                       DOT_PRODUCT.         (line   6)
  * program termination:                   EXIT.                (line   6)
  * program termination, with core dump:   ABORT.               (line   6)
! * PROTECTED statement:                   Fortran 2003 status. (line 114)
  * Q exponent-letter:                     Q exponent-letter.   (line   6)
  * RADIX:                                 RADIX.               (line   6)
  * radix, real:                           SELECTED_REAL_KIND.  (line   6)
  * RAN:                                   RAN.                 (line   6)
  * RAND:                                  RAND.                (line   6)
  * random number generation:              IRAND.               (line   6)
! * random number generation <1>:          RAN.                 (line   6)
! * random number generation <2>:          RAND.                (line   6)
! * random number generation <3>:          RANDOM_NUMBER.       (line   6)
  * random number generation, seeding:     RANDOM_SEED.         (line   6)
+ * random number generation, seeding <1>: SRAND.               (line   6)
  * RANDOM_NUMBER:                         RANDOM_NUMBER.       (line   6)
  * RANDOM_SEED:                           RANDOM_SEED.         (line   6)
  * RANGE:                                 RANGE.               (line   6)
! * range checking:                        Code Gen Options.    (line 141)
  * RANK:                                  RANK.                (line   6)
+ * rank:                                  RANK.                (line   6)
  * re-association of parenthesized expressions: Code Gen Options.
!                                                               (line 346)
  * read character, stream mode:           FGET.                (line   6)
+ * read character, stream mode <1>:       FGETC.               (line   6)
  * REAL:                                  REAL.                (line   6)
  * real kind:                             SELECTED_REAL_KIND.  (line   6)
  * real number, exponent:                 EXPONENT.            (line   6)
  * real number, fraction:                 FRACTION.            (line   6)
  * real number, nearest different:        NEAREST.             (line   6)
  * real number, relative spacing:         RRSPACING.           (line   6)
+ * real number, relative spacing <1>:     SPACING.             (line   6)
  * real number, scale:                    SCALE.               (line   6)
  * real number, set exponent:             SET_EXPONENT.        (line   6)
! * Reallocate the LHS in assignments:     Code Gen Options.    (line 355)
  * Reallocate the LHS in assignments, notification: Error and Warning Options.
                                                                (line 220)
  * REALPART:                              REAL.                (line   6)
*************** Keyword Index
*** 20462,20482 ****
  * Reduction, XOR:                        PARITY.              (line   6)
  * remainder:                             MOD.                 (line   6)
  * RENAME:                                RENAME.              (line   6)
! * repacking arrays:                      Code Gen Options.    (line 251)
  * REPEAT:                                REPEAT.              (line   6)
  * RESHAPE:                               RESHAPE.             (line   6)
  * REWIND:                                Read/Write after EOF marker.
                                                                (line   6)
  * right shift, combined:                 DSHIFTR.             (line   6)
  * root:                                  SQRT.                (line   6)
- * rounding, ceiling <1>:                 CEILING.             (line   6)
  * rounding, ceiling:                     ANINT.               (line   6)
! * rounding, floor <1>:                   FLOOR.               (line   6)
  * rounding, floor:                       AINT.                (line   6)
  * rounding, nearest whole number:        NINT.                (line   6)
  * RRSPACING:                             RRSPACING.           (line   6)
  * RSHIFT:                                RSHIFT.              (line   6)
! * run-time checking:                     Code Gen Options.    (line 143)
  * SAME_TYPE_AS:                          SAME_TYPE_AS.        (line   6)
  * SAVE statement:                        Code Gen Options.    (line  15)
  * SCALE:                                 SCALE.               (line   6)
--- 20260,20280 ----
  * Reduction, XOR:                        PARITY.              (line   6)
  * remainder:                             MOD.                 (line   6)
  * RENAME:                                RENAME.              (line   6)
! * repacking arrays:                      Code Gen Options.    (line 250)
  * REPEAT:                                REPEAT.              (line   6)
  * RESHAPE:                               RESHAPE.             (line   6)
  * REWIND:                                Read/Write after EOF marker.
                                                                (line   6)
  * right shift, combined:                 DSHIFTR.             (line   6)
  * root:                                  SQRT.                (line   6)
  * rounding, ceiling:                     ANINT.               (line   6)
! * rounding, ceiling <1>:                 CEILING.             (line   6)
  * rounding, floor:                       AINT.                (line   6)
+ * rounding, floor <1>:                   FLOOR.               (line   6)
  * rounding, nearest whole number:        NINT.                (line   6)
  * RRSPACING:                             RRSPACING.           (line   6)
  * RSHIFT:                                RSHIFT.              (line   6)
! * run-time checking:                     Code Gen Options.    (line 141)
  * SAME_TYPE_AS:                          SAME_TYPE_AS.        (line   6)
  * SAVE statement:                        Code Gen Options.    (line  15)
  * SCALE:                                 SCALE.               (line   6)
*************** Keyword Index
*** 20485,20501 ****
  * search paths, for included files:      Directory Options.   (line  14)
  * SECNDS:                                SECNDS.              (line   6)
  * SECOND:                                SECOND.              (line   6)
- * seeding a random number generator <1>: SRAND.               (line   6)
  * seeding a random number generator:     RANDOM_SEED.         (line   6)
  * SELECTED_CHAR_KIND:                    SELECTED_CHAR_KIND.  (line   6)
  * SELECTED_INT_KIND:                     SELECTED_INT_KIND.   (line   6)
  * SELECTED_REAL_KIND:                    SELECTED_REAL_KIND.  (line   6)
  * SET_EXPONENT:                          SET_EXPONENT.        (line   6)
  * SHAPE:                                 SHAPE.               (line   6)
- * shift, left <1>:                       SHIFTL.              (line   6)
  * shift, left:                           DSHIFTL.             (line   6)
! * shift, right <1>:                      SHIFTR.              (line   6)
  * shift, right:                          DSHIFTR.             (line   6)
  * shift, right with fill:                SHIFTA.              (line   6)
  * SHIFTA:                                SHIFTA.              (line   6)
  * SHIFTL:                                SHIFTL.              (line   6)
--- 20283,20299 ----
  * search paths, for included files:      Directory Options.   (line  14)
  * SECNDS:                                SECNDS.              (line   6)
  * SECOND:                                SECOND.              (line   6)
  * seeding a random number generator:     RANDOM_SEED.         (line   6)
+ * seeding a random number generator <1>: SRAND.               (line   6)
  * SELECTED_CHAR_KIND:                    SELECTED_CHAR_KIND.  (line   6)
  * SELECTED_INT_KIND:                     SELECTED_INT_KIND.   (line   6)
  * SELECTED_REAL_KIND:                    SELECTED_REAL_KIND.  (line   6)
  * SET_EXPONENT:                          SET_EXPONENT.        (line   6)
  * SHAPE:                                 SHAPE.               (line   6)
  * shift, left:                           DSHIFTL.             (line   6)
! * shift, left <1>:                       SHIFTL.              (line   6)
  * shift, right:                          DSHIFTR.             (line   6)
+ * shift, right <1>:                      SHIFTR.              (line   6)
  * shift, right with fill:                SHIFTA.              (line   6)
  * SHIFTA:                                SHIFTA.              (line   6)
  * SHIFTL:                                SHIFTL.              (line   6)
*************** Keyword Index
*** 20512,20519 ****
  * SINH:                                  SINH.                (line   6)
  * SIZE:                                  SIZE.                (line   6)
  * size of a variable, in bits:           BIT_SIZE.            (line   6)
- * size of an expression <1>:             SIZEOF.              (line   6)
  * size of an expression:                 C_SIZEOF.            (line   6)
  * SIZEOF:                                SIZEOF.              (line   6)
  * SLEEP:                                 SLEEP.               (line   6)
  * SNGL:                                  REAL.                (line   6)
--- 20310,20317 ----
  * SINH:                                  SINH.                (line   6)
  * SIZE:                                  SIZE.                (line   6)
  * size of a variable, in bits:           BIT_SIZE.            (line   6)
  * size of an expression:                 C_SIZEOF.            (line   6)
+ * size of an expression <1>:             SIZEOF.              (line   6)
  * SIZEOF:                                SIZEOF.              (line   6)
  * SLEEP:                                 SLEEP.               (line   6)
  * SNGL:                                  REAL.                (line   6)
*************** Keyword Index
*** 20527,20552 ****
  * statement, ENUM:                       Fortran 2003 status. (line  93)
  * statement, ENUMERATOR:                 Fortran 2003 status. (line  93)
  * statement, FLUSH:                      Fortran 2003 status. (line  89)
! * statement, IMPORT:                     Fortran 2003 status. (line 122)
! * statement, ISO_FORTRAN_ENV:            Fortran 2003 status. (line 130)
! * statement, PROTECTED:                  Fortran 2003 status. (line 116)
  * statement, SAVE:                       Code Gen Options.    (line  15)
! * statement, USE, INTRINSIC:             Fortran 2003 status. (line 130)
! * statement, VALUE:                      Fortran 2003 status. (line 118)
! * statement, VOLATILE:                   Fortran 2003 status. (line 120)
  * storage size:                          STORAGE_SIZE.        (line   6)
  * STORAGE_SIZE:                          STORAGE_SIZE.        (line   6)
! * STREAM I/O:                            Fortran 2003 status. (line 105)
! * stream mode, read character <1>:       FGETC.               (line   6)
  * stream mode, read character:           FGET.                (line   6)
! * stream mode, write character <1>:      FPUTC.               (line   6)
  * stream mode, write character:          FPUT.                (line   6)
  * string, adjust left:                   ADJUSTL.             (line   6)
  * string, adjust right:                  ADJUSTR.             (line   6)
- * string, comparison <1>:                LLT.                 (line   6)
- * string, comparison <2>:                LLE.                 (line   6)
- * string, comparison <3>:                LGT.                 (line   6)
  * string, comparison:                    LGE.                 (line   6)
  * string, concatenate:                   REPEAT.              (line   6)
  * string, find missing set:              VERIFY.              (line   6)
  * string, find non-blank character:      LNBLNK.              (line   6)
--- 20325,20350 ----
  * statement, ENUM:                       Fortran 2003 status. (line  93)
  * statement, ENUMERATOR:                 Fortran 2003 status. (line  93)
  * statement, FLUSH:                      Fortran 2003 status. (line  89)
! * statement, IMPORT:                     Fortran 2003 status. (line 120)
! * statement, ISO_FORTRAN_ENV:            Fortran 2003 status. (line 128)
! * statement, PROTECTED:                  Fortran 2003 status. (line 114)
  * statement, SAVE:                       Code Gen Options.    (line  15)
! * statement, USE, INTRINSIC:             Fortran 2003 status. (line 128)
! * statement, VALUE:                      Fortran 2003 status. (line 116)
! * statement, VOLATILE:                   Fortran 2003 status. (line 118)
  * storage size:                          STORAGE_SIZE.        (line   6)
  * STORAGE_SIZE:                          STORAGE_SIZE.        (line   6)
! * STREAM I/O:                            Fortran 2003 status. (line 103)
  * stream mode, read character:           FGET.                (line   6)
! * stream mode, read character <1>:       FGETC.               (line   6)
  * stream mode, write character:          FPUT.                (line   6)
+ * stream mode, write character <1>:      FPUTC.               (line   6)
  * string, adjust left:                   ADJUSTL.             (line   6)
  * string, adjust right:                  ADJUSTR.             (line   6)
  * string, comparison:                    LGE.                 (line   6)
+ * string, comparison <1>:                LGT.                 (line   6)
+ * string, comparison <2>:                LLE.                 (line   6)
+ * string, comparison <3>:                LLT.                 (line   6)
  * string, concatenate:                   REPEAT.              (line   6)
  * string, find missing set:              VERIFY.              (line   6)
  * string, find non-blank character:      LNBLNK.              (line   6)
*************** Keyword Index
*** 20560,20567 ****
                                                                (line   6)
  * STRUCTURE:                             STRUCTURE and RECORD.
                                                                (line   6)
! * structure packing:                     Code Gen Options.    (line 245)
! * subscript checking:                    Code Gen Options.    (line 143)
  * substring position:                    INDEX intrinsic.     (line   6)
  * SUM:                                   SUM.                 (line   6)
  * sum array elements:                    SUM.                 (line   6)
--- 20358,20365 ----
                                                                (line   6)
  * STRUCTURE:                             STRUCTURE and RECORD.
                                                                (line   6)
! * structure packing:                     Code Gen Options.    (line 244)
! * subscript checking:                    Code Gen Options.    (line 141)
  * substring position:                    INDEX intrinsic.     (line   6)
  * SUM:                                   SUM.                 (line   6)
  * sum array elements:                    SUM.                 (line   6)
*************** Keyword Index
*** 20570,20596 ****
  * symbol names:                          Fortran Dialect Options.
                                                                (line  50)
  * symbol names, transforming:            Code Gen Options.    (line  54)
  * symbol names, underscores:             Code Gen Options.    (line  54)
  * SYMLNK:                                SYMLNK.              (line   6)
  * syntax checking:                       Error and Warning Options.
                                                                (line  33)
  * SYSTEM:                                SYSTEM.              (line   6)
- * system, error handling <1>:            PERROR.              (line   6)
- * system, error handling <2>:            IERRNO.              (line   6)
  * system, error handling:                GERROR.              (line   6)
  * system, group ID:                      GETGID.              (line   6)
  * system, host name:                     HOSTNM.              (line   6)
  * system, login name:                    GETLOG.              (line   6)
  * system, process ID:                    GETPID.              (line   6)
  * system, signal handling:               SIGNAL.              (line   6)
- * system, system call <1>:               SYSTEM.              (line   6)
  * system, system call:                   EXECUTE_COMMAND_LINE.
                                                                (line   6)
! * system, terminal <1>:                  TTYNAM.              (line   6)
  * system, terminal:                      ISATTY.              (line   6)
  * system, user ID:                       GETUID.              (line   6)
- * system, working directory <1>:         GETCWD.              (line   6)
  * system, working directory:             CHDIR.               (line   6)
  * SYSTEM_CLOCK:                          SYSTEM_CLOCK.        (line   6)
  * tabulators:                            Error and Warning Options.
                                                                (line 175)
--- 20368,20396 ----
  * symbol names:                          Fortran Dialect Options.
                                                                (line  50)
  * symbol names, transforming:            Code Gen Options.    (line  54)
+ * symbol names, transforming <1>:        Code Gen Options.    (line 110)
  * symbol names, underscores:             Code Gen Options.    (line  54)
+ * symbol names, underscores <1>:         Code Gen Options.    (line 110)
  * SYMLNK:                                SYMLNK.              (line   6)
  * syntax checking:                       Error and Warning Options.
                                                                (line  33)
  * SYSTEM:                                SYSTEM.              (line   6)
  * system, error handling:                GERROR.              (line   6)
+ * system, error handling <1>:            IERRNO.              (line   6)
+ * system, error handling <2>:            PERROR.              (line   6)
  * system, group ID:                      GETGID.              (line   6)
  * system, host name:                     HOSTNM.              (line   6)
  * system, login name:                    GETLOG.              (line   6)
  * system, process ID:                    GETPID.              (line   6)
  * system, signal handling:               SIGNAL.              (line   6)
  * system, system call:                   EXECUTE_COMMAND_LINE.
                                                                (line   6)
! * system, system call <1>:               SYSTEM.              (line   6)
  * system, terminal:                      ISATTY.              (line   6)
+ * system, terminal <1>:                  TTYNAM.              (line   6)
  * system, user ID:                       GETUID.              (line   6)
  * system, working directory:             CHDIR.               (line   6)
+ * system, working directory <1>:         GETCWD.              (line   6)
  * SYSTEM_CLOCK:                          SYSTEM_CLOCK.        (line   6)
  * tabulators:                            Error and Warning Options.
                                                                (line 175)
*************** Keyword Index
*** 20598,20605 ****
  * tangent:                               TAN.                 (line   6)
  * tangent, hyperbolic:                   TANH.                (line   6)
  * tangent, hyperbolic, inverse:          ATANH.               (line   6)
- * tangent, inverse <1>:                  ATAN2.               (line   6)
  * tangent, inverse:                      ATAN.                (line   6)
  * TANH:                                  TANH.                (line   6)
  * terminate program:                     EXIT.                (line   6)
  * terminate program, with core dump:     ABORT.               (line   6)
--- 20398,20405 ----
  * tangent:                               TAN.                 (line   6)
  * tangent, hyperbolic:                   TANH.                (line   6)
  * tangent, hyperbolic, inverse:          ATANH.               (line   6)
  * tangent, inverse:                      ATAN.                (line   6)
+ * tangent, inverse <1>:                  ATAN2.               (line   6)
  * TANH:                                  TANH.                (line   6)
  * terminate program:                     EXIT.                (line   6)
  * terminate program, with core dump:     ABORT.               (line   6)
*************** Keyword Index
*** 20607,20644 ****
  * thread-safety, threads:                Thread-safety of the runtime library.
                                                                (line   6)
  * TIME:                                  TIME.                (line   6)
- * time, clock ticks <1>:                 SYSTEM_CLOCK.        (line   6)
- * time, clock ticks <2>:                 MCLOCK8.             (line   6)
  * time, clock ticks:                     MCLOCK.              (line   6)
  * time, conversion to GMT info:          GMTIME.              (line   6)
  * time, conversion to local time info:   LTIME.               (line   6)
  * time, conversion to string:            CTIME.               (line   6)
- * time, current <1>:                     TIME8.               (line   6)
- * time, current <2>:                     TIME.                (line   6)
- * time, current <3>:                     ITIME.               (line   6)
- * time, current <4>:                     FDATE.               (line   6)
  * time, current:                         DATE_AND_TIME.       (line   6)
! * time, elapsed <1>:                     SECOND.              (line   6)
! * time, elapsed <2>:                     SECNDS.              (line   6)
! * time, elapsed <3>:                     ETIME.               (line   6)
! * time, elapsed <4>:                     DTIME.               (line   6)
  * time, elapsed:                         CPU_TIME.            (line   6)
  * TIME8:                                 TIME8.               (line   6)
  * TINY:                                  TINY.                (line   6)
  * TR 15581:                              Fortran 2003 status. (line  98)
! * trace:                                 Debugging Options.   (line  62)
  * TRAILZ:                                TRAILZ.              (line   6)
  * TRANSFER:                              TRANSFER.            (line   6)
  * transforming symbol names:             Code Gen Options.    (line  54)
! * transpose:                             TRANSPOSE.           (line   6)
  * TRANSPOSE:                             TRANSPOSE.           (line   6)
  * trigonometric function, cosine:        COS.                 (line   6)
  * trigonometric function, cosine, inverse: ACOS.              (line   6)
  * trigonometric function, sine:          SIN.                 (line   6)
  * trigonometric function, sine, inverse: ASIN.                (line   6)
  * trigonometric function, tangent:       TAN.                 (line   6)
- * trigonometric function, tangent, inverse <1>: ATAN2.        (line   6)
  * trigonometric function, tangent, inverse: ATAN.             (line   6)
  * TRIM:                                  TRIM.                (line   6)
  * TTYNAM:                                TTYNAM.              (line   6)
  * type cast:                             TRANSFER.            (line   6)
--- 20407,20445 ----
  * thread-safety, threads:                Thread-safety of the runtime library.
                                                                (line   6)
  * TIME:                                  TIME.                (line   6)
  * time, clock ticks:                     MCLOCK.              (line   6)
+ * time, clock ticks <1>:                 MCLOCK8.             (line   6)
+ * time, clock ticks <2>:                 SYSTEM_CLOCK.        (line   6)
  * time, conversion to GMT info:          GMTIME.              (line   6)
  * time, conversion to local time info:   LTIME.               (line   6)
  * time, conversion to string:            CTIME.               (line   6)
  * time, current:                         DATE_AND_TIME.       (line   6)
! * time, current <1>:                     FDATE.               (line   6)
! * time, current <2>:                     ITIME.               (line   6)
! * time, current <3>:                     TIME.                (line   6)
! * time, current <4>:                     TIME8.               (line   6)
  * time, elapsed:                         CPU_TIME.            (line   6)
+ * time, elapsed <1>:                     DTIME.               (line   6)
+ * time, elapsed <2>:                     ETIME.               (line   6)
+ * time, elapsed <3>:                     SECNDS.              (line   6)
+ * time, elapsed <4>:                     SECOND.              (line   6)
  * TIME8:                                 TIME8.               (line   6)
  * TINY:                                  TINY.                (line   6)
  * TR 15581:                              Fortran 2003 status. (line  98)
! * trace:                                 Debugging Options.   (line  61)
  * TRAILZ:                                TRAILZ.              (line   6)
  * TRANSFER:                              TRANSFER.            (line   6)
  * transforming symbol names:             Code Gen Options.    (line  54)
! * transforming symbol names <1>:         Code Gen Options.    (line 110)
  * TRANSPOSE:                             TRANSPOSE.           (line   6)
+ * transpose:                             TRANSPOSE.           (line   6)
  * trigonometric function, cosine:        COS.                 (line   6)
  * trigonometric function, cosine, inverse: ACOS.              (line   6)
  * trigonometric function, sine:          SIN.                 (line   6)
  * trigonometric function, sine, inverse: ASIN.                (line   6)
  * trigonometric function, tangent:       TAN.                 (line   6)
  * trigonometric function, tangent, inverse: ATAN.             (line   6)
+ * trigonometric function, tangent, inverse <1>: ATAN2.        (line   6)
  * TRIM:                                  TRIM.                (line   6)
  * TTYNAM:                                TTYNAM.              (line   6)
  * type cast:                             TRANSFER.            (line   6)
*************** Keyword Index
*** 20648,20653 ****
--- 20449,20455 ----
  * underflow:                             Error and Warning Options.
                                                                (line 183)
  * underscore:                            Code Gen Options.    (line  54)
+ * underscore <1>:                        Code Gen Options.    (line 110)
  * UNION:                                 UNION and MAP.       (line   6)
  * UNLINK:                                UNLINK.              (line   6)
  * UNPACK:                                UNPACK.              (line   6)
*************** Keyword Index
*** 20655,20663 ****
                                                                (line 199)
  * unused parameter:                      Error and Warning Options.
                                                                (line 203)
! * USE, INTRINSIC statement:              Fortran 2003 status. (line 130)
  * user id:                               GETUID.              (line   6)
! * VALUE statement:                       Fortran 2003 status. (line 118)
  * Varying length character strings:      Varying Length Character Strings.
                                                                (line   6)
  * Varying length strings:                Varying Length Character Strings.
--- 20457,20465 ----
                                                                (line 199)
  * unused parameter:                      Error and Warning Options.
                                                                (line 203)
! * USE, INTRINSIC statement:              Fortran 2003 status. (line 128)
  * user id:                               GETUID.              (line   6)
! * VALUE statement:                       Fortran 2003 status. (line 116)
  * Varying length character strings:      Varying Length Character Strings.
                                                                (line   6)
  * Varying length strings:                Varying Length Character Strings.
*************** Keyword Index
*** 20667,20673 ****
  * version of the compiler:               COMPILER_VERSION.    (line   6)
  * VOLATILE:                              Volatile COMMON blocks.
                                                                (line   6)
! * VOLATILE statement:                    Fortran 2003 status. (line 120)
  * warning, C binding type:               Error and Warning Options.
                                                                (line  99)
  * warnings, aliasing:                    Error and Warning Options.
--- 20469,20475 ----
  * version of the compiler:               COMPILER_VERSION.    (line   6)
  * VOLATILE:                              Volatile COMMON blocks.
                                                                (line   6)
! * VOLATILE statement:                    Fortran 2003 status. (line 118)
  * warning, C binding type:               Error and Warning Options.
                                                                (line  99)
  * warnings, aliasing:                    Error and Warning Options.
*************** Keyword Index
*** 20684,20689 ****
--- 20486,20493 ----
                                                                (line 106)
  * warnings, conversion:                  Error and Warning Options.
                                                                (line 115)
+ * warnings, conversion <1>:              Error and Warning Options.
+                                                               (line 119)
  * warnings, division of integers:        Error and Warning Options.
                                                                (line 138)
  * warnings, extra:                       Error and Warning Options.
*************** Keyword Index
*** 20713,20719 ****
  * warnings, tabs:                        Error and Warning Options.
                                                                (line 175)
  * warnings, to errors:                   Error and Warning Options.
!                                                               (line 250)
  * warnings, underflow:                   Error and Warning Options.
                                                                (line 183)
  * warnings, unused dummy argument:       Error and Warning Options.
--- 20517,20523 ----
  * warnings, tabs:                        Error and Warning Options.
                                                                (line 175)
  * warnings, to errors:                   Error and Warning Options.
!                                                               (line 249)
  * warnings, underflow:                   Error and Warning Options.
                                                                (line 183)
  * warnings, unused dummy argument:       Error and Warning Options.
*************** Keyword Index
*** 20722,20735 ****
                                                                (line 203)
  * warnings, use statements:              Error and Warning Options.
                                                                (line 195)
- * write character, stream mode <1>:      FPUTC.               (line   6)
  * write character, stream mode:          FPUT.                (line   6)
  * XOR:                                   XOR.                 (line   6)
  * XOR reduction:                         PARITY.              (line   6)
  * ZABS:                                  ABS.                 (line   6)
  * ZCOS:                                  COS.                 (line   6)
- * zero bits <1>:                         TRAILZ.              (line   6)
  * zero bits:                             LEADZ.               (line   6)
  * ZEXP:                                  EXP.                 (line   6)
  * ZLOG:                                  LOG.                 (line   6)
  * ZSIN:                                  SIN.                 (line   6)
--- 20526,20539 ----
                                                                (line 203)
  * warnings, use statements:              Error and Warning Options.
                                                                (line 195)
  * write character, stream mode:          FPUT.                (line   6)
+ * write character, stream mode <1>:      FPUTC.               (line   6)
  * XOR:                                   XOR.                 (line   6)
  * XOR reduction:                         PARITY.              (line   6)
  * ZABS:                                  ABS.                 (line   6)
  * ZCOS:                                  COS.                 (line   6)
  * zero bits:                             LEADZ.               (line   6)
+ * zero bits <1>:                         TRAILZ.              (line   6)
  * ZEXP:                                  EXP.                 (line   6)
  * ZLOG:                                  LOG.                 (line   6)
  * ZSIN:                                  SIN.                 (line   6)
*************** Keyword Index
*** 20738,21156 ****
  
  
  Tag Table:
! Node: Top2004
! Node: Introduction3415
! Node: About GNU Fortran4164
! Node: GNU Fortran and GCC8153
! Node: Preprocessing and conditional compilation10267
! Node: GNU Fortran and G7711911
! Node: Project Status12484
! Node: Standards15214
! Node: Varying Length Character Strings16532
! Node: Invoking GNU Fortran17283
! Node: Option Summary19006
! Node: Fortran Dialect Options22505
! Node: Preprocessing Options32465
! Node: Error and Warning Options40696
! Node: Debugging Options51389
! Node: Directory Options54861
! Node: Link Options56296
! Node: Runtime Options56920
! Node: Code Gen Options58825
! Node: Environment Variables76128
! Node: Runtime76733
! Node: TMPDIR77835
! Node: GFORTRAN_STDIN_UNIT78504
! Node: GFORTRAN_STDOUT_UNIT78886
! Node: GFORTRAN_STDERR_UNIT79287
! Node: GFORTRAN_UNBUFFERED_ALL79689
! Node: GFORTRAN_UNBUFFERED_PRECONNECTED80220
! Node: GFORTRAN_SHOW_LOCUS80864
! Node: GFORTRAN_OPTIONAL_PLUS81360
! Node: GFORTRAN_DEFAULT_RECL81836
! Node: GFORTRAN_LIST_SEPARATOR82325
! Node: GFORTRAN_CONVERT_UNIT82934
! Node: GFORTRAN_ERROR_BACKTRACE85797
! Node: Fortran 2003 and 2008 status86354
! Node: Fortran 2003 status86634
! Node: Fortran 2008 status91875
! Node: TS 29113 status97249
! Node: TS 18508 status98250
! Node: Compiler Characteristics98950
! Node: KIND Type Parameters99579
! Node: Internal representation of LOGICAL variables101008
! Node: Thread-safety of the runtime library101868
! Node: Data consistency and durability104272
! Node: Files opened without an explicit ACTION= specifier107373
! Node: File operations on symbolic links108067
! Node: Extensions109136
! Node: Extensions implemented in GNU Fortran109741
! Node: Old-style kind specifications111186
! Node: Old-style variable initialization112293
! Node: Extensions to namelist113605
! Node: X format descriptor without count field115907
! Node: Commas in FORMAT specifications116434
! Node: Missing period in FORMAT specifications116951
! Node: I/O item lists117513
! Node: `Q' exponent-letter117900
! Node: BOZ literal constants118500
! Node: Real array indices121079
! Node: Unary operators121378
! Node: Implicitly convert LOGICAL and INTEGER values121792
! Node: Hollerith constants support122752
! Node: Cray pointers124524
! Node: CONVERT specifier129971
! Node: OpenMP131969
! Node: OpenACC134227
! Node: Argument list functions135537
! Node: Read/Write after EOF marker137181
! Node: STRUCTURE and RECORD137783
! Node: UNION and MAP142274
! Node: Extensions not implemented in GNU Fortran145195
! Node: ENCODE and DECODE statements146140
! Node: Variable FORMAT expressions147471
! Node: Alternate complex function syntax148576
! Node: Volatile COMMON blocks149127
! Node: OPEN( ... NAME=)149628
! Node: Mixed-Language Programming150029
! Node: Interoperability with C150612
! Node: Intrinsic Types151950
! Node: Derived Types and struct152946
! Node: Interoperable Global Variables154303
! Node: Interoperable Subroutines and Functions155579
! Node: Working with Pointers159375
! Node: Further Interoperability of Fortran with C163851
! Node: GNU Fortran Compiler Directives167200
! Node: Non-Fortran Main Program170454
! Node: _gfortran_set_args172644
! Node: _gfortran_set_options173579
! Node: _gfortran_set_convert176946
! Node: _gfortran_set_record_marker177810
! Node: _gfortran_set_fpe178618
! Node: _gfortran_set_max_subrecord_length179810
! Node: Naming and argument-passing conventions180730
! Node: Naming conventions181449
! Node: Argument passing conventions182919
! Node: Coarray Programming187415
! Node: Type and enum ABI Documentation187662
! Node: caf_token_t187904
! Node: caf_register_t188139
! Node: Function ABI Documentation188593
! Node: _gfortran_caf_init190336
! Node: _gfortran_caf_finish191773
! Node: _gfortran_caf_this_image192712
! Node: _gfortran_caf_num_images193463
! Node: _gfortran_caf_register194564
! Node: _gfortran_caf_deregister197748
! Node: _gfortran_caf_send198813
! Node: _gfortran_caf_get201607
! Node: _gfortran_caf_sendget204276
! Node: _gfortran_caf_lock207692
! Node: _gfortran_caf_unlock209411
! Node: _gfortran_caf_event_post210844
! Node: _gfortran_caf_event_wait212243
! Node: _gfortran_caf_event_query214290
! Node: _gfortran_caf_sync_all215582
! Node: _gfortran_caf_sync_images216496
! Node: _gfortran_caf_sync_memory217993
! Node: _gfortran_caf_error_stop218965
! Node: _gfortran_caf_error_stop_str219561
! Node: _gfortran_caf_atomic_define220229
! Node: _gfortran_caf_atomic_ref221489
! Node: _gfortran_caf_atomic_cas222769
! Node: _gfortran_caf_atomic_op224465
! Node: _gfortran_caf_co_broadcast226496
! Node: _gfortran_caf_co_max227561
! Node: _gfortran_caf_co_min229111
! Node: _gfortran_caf_co_sum230655
! Node: _gfortran_caf_co_reduce232111
! Node: Intrinsic Procedures234602
! Node: Introduction to Intrinsics251155
! Node: ABORT253507
! Node: ABS254253
! Node: ACCESS255870
! Node: ACHAR257791
! Node: ACOS258992
! Node: ACOSH260229
! Node: ADJUSTL261217
! Node: ADJUSTR262158
! Node: AIMAG263105
! Node: AINT264486
! Node: ALARM266073
! Node: ALL267707
! Node: ALLOCATED269625
! Node: AND270762
! Node: ANINT272059
! Node: ANY273537
! Node: ASIN275467
! Node: ASINH276693
! Node: ASSOCIATED277691
! Node: ATAN280696
! Node: ATAN2282115
! Node: ATANH283887
! Node: ATOMIC_ADD284884
! Node: ATOMIC_AND286423
! Node: ATOMIC_CAS288018
! Node: ATOMIC_DEFINE289881
! Node: ATOMIC_FETCH_ADD291588
! Node: ATOMIC_FETCH_AND293375
! Node: ATOMIC_FETCH_OR295171
! Node: ATOMIC_FETCH_XOR296959
! Node: ATOMIC_OR298748
! Node: ATOMIC_REF300340
! Node: ATOMIC_XOR302242
! Node: BACKTRACE303834
! Node: BESSEL_J0304413
! Node: BESSEL_J1305421
! Node: BESSEL_JN306430
! Node: BESSEL_Y0308312
! Node: BESSEL_Y1309258
! Node: BESSEL_YN310204
! Node: BGE312036
! Node: BGT312725
! Node: BIT_SIZE313372
! Node: BLE314193
! Node: BLT314872
! Node: BTEST315507
! Node: C_ASSOCIATED316390
! Node: C_F_POINTER317599
! Node: C_F_PROCPOINTER319023
! Node: C_FUNLOC320524
! Node: C_LOC321893
! Node: C_SIZEOF323170
! Node: CEILING324580
! Node: CHAR325585
! Node: CHDIR326789
! Node: CHMOD327957
! Node: CMPLX329820
! Node: CO_BROADCAST331274
! Node: CO_MAX333038
! Node: CO_MIN334910
! Node: CO_REDUCE336768
! Node: CO_SUM340245
! Node: COMMAND_ARGUMENT_COUNT342144
! Node: COMPILER_OPTIONS343068
! Node: COMPILER_VERSION344094
! Node: COMPLEX345058
! Node: CONJG346195
! Node: COS347266
! Node: COSH348712
! Node: COUNT349877
! Node: CPU_TIME351893
! Node: CSHIFT353247
! Node: CTIME354903
! Node: DATE_AND_TIME356413
! Node: DBLE358873
! Node: DCMPLX359666
! Node: DIGITS360860
! Node: DIM361826
! Node: DOT_PRODUCT363084
! Node: DPROD364740
! Node: DREAL365657
! Node: DSHIFTL366323
! Node: DSHIFTR367643
! Node: DTIME368964
! Node: EOSHIFT371767
! Node: EPSILON373840
! Node: ERF374566
! Node: ERFC375340
! Node: ERFC_SCALED376144
! Node: ETIME376836
! Node: EVENT_QUERY379068
! Node: EXECUTE_COMMAND_LINE380666
! Node: EXIT383252
! Node: EXP384126
! Node: EXPONENT385399
! Node: EXTENDS_TYPE_OF386159
! Node: FDATE387012
! Node: FGET388494
! Node: FGETC390312
! Node: FLOOR392113
! Node: FLUSH393099
! Node: FNUM394976
! Node: FPUT395700
! Node: FPUTC397327
! Node: FRACTION399100
! Node: FREE400003
! Node: FSEEK400840
! Node: FSTAT403136
! Node: FTELL404218
! Node: GAMMA405198
! Node: GERROR406241
! Node: GETARG406962
! Node: GET_COMMAND408728
! Node: GET_COMMAND_ARGUMENT410094
! Node: GETCWD412130
! Node: GETENV413104
! Node: GET_ENVIRONMENT_VARIABLE414529
! Node: GETGID416682
! Node: GETLOG417219
! Node: GETPID418079
! Node: GETUID418809
! Node: GMTIME419325
! Node: HOSTNM420814
! Node: HUGE421732
! Node: HYPOT422453
! Node: IACHAR423273
! Node: IALL424453
! Node: IAND425930
! Node: IANY426914
! Node: IARGC428400
! Node: IBCLR429421
! Node: IBITS430082
! Node: IBSET430997
! Node: ICHAR431653
! Node: IDATE433825
! Node: IEOR434852
! Node: IERRNO435728
! Node: IMAGE_INDEX436277
! Node: INDEX intrinsic437301
! Node: INT438842
! Node: INT2440574
! Node: INT8441339
! Node: IOR442051
! Node: IPARITY442903
! Node: IRAND444427
! Node: IS_IOSTAT_END445783
! Node: IS_IOSTAT_EOR446880
! Node: ISATTY448007
! Node: ISHFT448790
! Node: ISHFTC449770
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! Node: KIND453663
! Node: LBOUND454508
! Node: LCOBOUND455841
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! Node: LEN457831
! Node: LEN_TRIM459112
! Node: LGE460094
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! Node: LINK463063
! Node: LLE464098
! Node: LLT465592
! Node: LNBLNK467052
! Node: LOC467828
! Node: LOG468559
! Node: LOG10469959
! Node: LOG_GAMMA470933
! Node: LOGICAL472022
! Node: LONG472830
! Node: LSHIFT473586
! Node: LSTAT474671
! Node: LTIME475865
! Node: MALLOC477276
! Node: MASKL478735
! Node: MASKR479498
! Node: MATMUL480264
! Node: MAX481353
! Node: MAXEXPONENT482852
! Node: MAXLOC483668
! Node: MAXVAL485687
! Node: MCLOCK487320
! Node: MCLOCK8488344
! Node: MERGE489577
! Node: MERGE_BITS490326
! Node: MIN491187
! Node: MINEXPONENT492688
! Node: MINLOC493318
! Node: MINVAL495337
! Node: MOD496989
! Node: MODULO498734
! Node: MOVE_ALLOC500034
! Node: MVBITS501063
! Node: NEAREST502122
! Node: NEW_LINE503218
! Node: NINT503989
! Node: NORM2505392
! Node: NOT506530
! Node: NULL507114
! Node: NUM_IMAGES508019
! Node: OR509729
! Node: PACK511013
! Node: PARITY513006
! Node: PERROR514221
! Node: POPCNT514842
! Node: POPPAR515713
! Node: PRECISION516764
! Node: PRESENT517650
! Node: PRODUCT518756
! Node: RADIX520281
! Node: RAN521093
! Node: RAND521549
! Node: RANDOM_NUMBER522881
! Node: RANDOM_SEED524598
! Node: RANGE528410
! Node: RANK529106
! Node: REAL529886
! Node: RENAME531661
! Node: REPEAT532680
! Node: RESHAPE533406
! Node: RRSPACING534875
! Node: RSHIFT535568
! Node: SAME_TYPE_AS536706
! Node: SCALE537536
! Node: SCAN538316
! Node: SECNDS539866
! Node: SECOND540954
! Node: SELECTED_CHAR_KIND541830
! Node: SELECTED_INT_KIND543421
! Node: SELECTED_REAL_KIND544596
! Node: SET_EXPONENT547262
! Node: SHAPE548258
! Node: SHIFTA549673
! Node: SHIFTL550634
! Node: SHIFTR551469
! Node: SIGN552305
! Node: SIGNAL553589
! Node: SIN555086
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! Node: SIZE557180
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! Node: SLEEP560138
! Node: SPACING560698
! Node: SPREAD561711
! Node: SQRT562856
! Node: SRAND564210
! Node: STAT565443
! Node: STORAGE_SIZE568610
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! Node: SYSTEM_CLOCK573355
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! Node: TIME580600
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! Node: UMASK591307
! Node: UNLINK591985
! Node: UNPACK592962
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  End Tag Table
--- 20542,20960 ----
  
  
  Tag Table:
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  End Tag Table
diff -Nrcpad gcc-6.4.0/gcc/fortran/interface.c gcc-6.5.0/gcc/fortran/interface.c
*** gcc-6.4.0/gcc/fortran/interface.c	Thu Nov 24 19:26:33 2016
--- gcc-6.5.0/gcc/fortran/interface.c	Fri Sep  7 18:01:23 2018
***************
*** 1,5 ****
  /* Deal with interfaces.
!    Copyright (C) 2000-2016 Free Software Foundation, Inc.
     Contributed by Andy Vaught
  
  This file is part of GCC.
--- 1,5 ----
  /* Deal with interfaces.
!    Copyright (C) 2000-2016,2018 Free Software Foundation, Inc.
     Contributed by Andy Vaught
  
  This file is part of GCC.
*************** compare_type (gfc_symbol *s1, gfc_symbol
*** 638,650 ****
    if (s2->attr.ext_attr & (1 << EXT_ATTR_NO_ARG_CHECK))
      return 1;
  
    /* TYPE and CLASS of the same declared type are type compatible,
       but have different characteristics.  */
    if ((s1->ts.type == BT_CLASS && s2->ts.type == BT_DERIVED)
        || (s1->ts.type == BT_DERIVED && s2->ts.type == BT_CLASS))
      return 0;
  
!   return gfc_compare_types (&s1->ts, &s2->ts) || s2->ts.type == BT_ASSUMED;
  }
  
  
--- 638,657 ----
    if (s2->attr.ext_attr & (1 << EXT_ATTR_NO_ARG_CHECK))
      return 1;
  
+   return gfc_compare_types (&s1->ts, &s2->ts) || s2->ts.type == BT_ASSUMED;
+ }
+ 
+ 
+ static bool
+ compare_type_characteristics (gfc_symbol *s1, gfc_symbol *s2)
+ {
    /* TYPE and CLASS of the same declared type are type compatible,
       but have different characteristics.  */
    if ((s1->ts.type == BT_CLASS && s2->ts.type == BT_DERIVED)
        || (s1->ts.type == BT_DERIVED && s2->ts.type == BT_CLASS))
      return 0;
  
!   return compare_type (s1, s2);
  }
  
  
*************** generic_correspondence (gfc_formal_argli
*** 1165,1172 ****
  static int
  symbol_rank (gfc_symbol *sym)
  {
!   gfc_array_spec *as;
!   as = (sym->ts.type == BT_CLASS) ? CLASS_DATA (sym)->as : sym->as;
    return as ? as->rank : 0;
  }
  
--- 1172,1184 ----
  static int
  symbol_rank (gfc_symbol *sym)
  {
!   gfc_array_spec *as = NULL;
! 
!   if (sym->ts.type == BT_CLASS && CLASS_DATA (sym))
!     as = CLASS_DATA (sym)->as;
!   else
!     as = sym->as;
! 
    return as ? as->rank : 0;
  }
  
*************** gfc_check_dummy_characteristics (gfc_sym
*** 1185,1191 ****
    /* Check type and rank.  */
    if (type_must_agree)
      {
!       if (!compare_type (s1, s2) || !compare_type (s2, s1))
  	{
  	  snprintf (errmsg, err_len, "Type mismatch in argument '%s' (%s/%s)",
  		    s1->name, gfc_typename (&s1->ts), gfc_typename (&s2->ts));
--- 1197,1204 ----
    /* Check type and rank.  */
    if (type_must_agree)
      {
!       if (!compare_type_characteristics (s1, s2)
! 	  || !compare_type_characteristics (s2, s1))
  	{
  	  snprintf (errmsg, err_len, "Type mismatch in argument '%s' (%s/%s)",
  		    s1->name, gfc_typename (&s1->ts), gfc_typename (&s2->ts));
*************** gfc_check_result_characteristics (gfc_sy
*** 1404,1410 ****
      return true;
  
    /* Check type and rank.  */
!   if (!compare_type (r1, r2))
      {
        snprintf (errmsg, err_len, "Type mismatch in function result (%s/%s)",
  		gfc_typename (&r1->ts), gfc_typename (&r2->ts));
--- 1417,1423 ----
      return true;
  
    /* Check type and rank.  */
!   if (!compare_type_characteristics (r1, r2))
      {
        snprintf (errmsg, err_len, "Type mismatch in function result (%s/%s)",
  		gfc_typename (&r1->ts), gfc_typename (&r2->ts));
*************** is_procptr_result (gfc_expr *expr)
*** 2705,2711 ****
  
  static int
  compare_actual_formal (gfc_actual_arglist **ap, gfc_formal_arglist *formal,
! 	 	       int ranks_must_agree, int is_elemental, locus *where)
  {
    gfc_actual_arglist **new_arg, *a, *actual;
    gfc_formal_arglist *f;
--- 2718,2725 ----
  
  static int
  compare_actual_formal (gfc_actual_arglist **ap, gfc_formal_arglist *formal,
! 	 	       int ranks_must_agree, int is_elemental,
! 		       bool in_statement_function, locus *where)
  {
    gfc_actual_arglist **new_arg, *a, *actual;
    gfc_formal_arglist *f;
*************** compare_actual_formal (gfc_actual_arglis
*** 2733,2738 ****
--- 2747,2759 ----
  
    for (a = actual; a; a = a->next, f = f->next)
      {
+       if (a->name != NULL && in_statement_function)
+ 	{
+ 	  gfc_error ("Keyword argument %qs at %L is invalid in "
+ 		     "a statement function", a->name, &a->expr->where);
+ 	  return false;
+ 	}
+ 
        /* Look for keywords but ignore g77 extensions like %VAL.  */
        if (a->name != NULL && a->name[0] != '%')
  	{
*************** compare_actual_formal (gfc_actual_arglis
*** 3053,3060 ****
  	}
  
        /* Check intent = OUT/INOUT for definable actual argument.  */
!       if ((f->sym->attr.intent == INTENT_OUT
! 	  || f->sym->attr.intent == INTENT_INOUT))
  	{
  	  const char* context = (where
  				 ? _("actual argument to INTENT = OUT/INOUT")
--- 3074,3082 ----
  	}
  
        /* Check intent = OUT/INOUT for definable actual argument.  */
!       if (!in_statement_function
! 	  && (f->sym->attr.intent == INTENT_OUT
! 	      || f->sym->attr.intent == INTENT_INOUT))
  	{
  	  const char* context = (where
  				 ? _("actual argument to INTENT = OUT/INOUT")
*************** compare_actual_formal (gfc_actual_arglis
*** 3152,3158 ****
  		       "at %L", where);
  	  return 0;
  	}
!       if (!f->sym->attr.optional)
  	{
  	  if (where)
  	    gfc_error ("Missing actual argument for argument %qs at %L",
--- 3174,3181 ----
  		       "at %L", where);
  	  return 0;
  	}
!       if (!f->sym->attr.optional
! 	  || (in_statement_function && f->sym->attr.optional))
  	{
  	  if (where)
  	    gfc_error ("Missing actual argument for argument %qs at %L",
*************** check_intents (gfc_formal_arglist *f, gf
*** 3438,3443 ****
--- 3461,3467 ----
  bool
  gfc_procedure_use (gfc_symbol *sym, gfc_actual_arglist **ap, locus *where)
  {
+   gfc_actual_arglist *a;
    gfc_formal_arglist *dummy_args;
  
    /* Warn about calls with an implicit interface.  Special case
*************** gfc_procedure_use (gfc_symbol *sym, gfc_
*** 3464,3471 ****
  
    if (sym->attr.if_source == IFSRC_UNKNOWN)
      {
-       gfc_actual_arglist *a;
- 
        if (sym->attr.pointer)
  	{
  	  gfc_error ("The pointer object %qs at %L must have an explicit "
--- 3488,3493 ----
*************** gfc_procedure_use (gfc_symbol *sym, gfc_
*** 3557,3565 ****
  
    dummy_args = gfc_sym_get_dummy_args (sym);
  
!   if (!compare_actual_formal (ap, dummy_args, 0, sym->attr.elemental, where))
      return false;
! 
    if (!check_intents (dummy_args, *ap))
      return false;
  
--- 3579,3590 ----
  
    dummy_args = gfc_sym_get_dummy_args (sym);
  
!   /* For a statement function, check that types and type parameters of actual
!      arguments and dummy arguments match.  */
!   if (!compare_actual_formal (ap, dummy_args, 0, sym->attr.elemental,
! 			      sym->attr.proc == PROC_ST_FUNCTION, where))
      return false;
!  
    if (!check_intents (dummy_args, *ap))
      return false;
  
*************** gfc_ppc_use (gfc_component *comp, gfc_ac
*** 3606,3612 ****
      }
  
    if (!compare_actual_formal (ap, comp->ts.interface->formal, 0,
! 			      comp->attr.elemental, where))
      return;
  
    check_intents (comp->ts.interface->formal, *ap);
--- 3631,3637 ----
      }
  
    if (!compare_actual_formal (ap, comp->ts.interface->formal, 0,
! 			      comp->attr.elemental, false, where))
      return;
  
    check_intents (comp->ts.interface->formal, *ap);
*************** gfc_arglist_matches_symbol (gfc_actual_a
*** 3631,3637 ****
    dummy_args = gfc_sym_get_dummy_args (sym);
  
    r = !sym->attr.elemental;
!   if (compare_actual_formal (args, dummy_args, r, !r, NULL))
      {
        check_intents (dummy_args, *args);
        if (warn_aliasing)
--- 3656,3662 ----
    dummy_args = gfc_sym_get_dummy_args (sym);
  
    r = !sym->attr.elemental;
!   if (compare_actual_formal (args, dummy_args, r, !r, false, NULL))
      {
        check_intents (dummy_args, *args);
        if (warn_aliasing)
diff -Nrcpad gcc-6.4.0/gcc/fortran/match.c gcc-6.5.0/gcc/fortran/match.c
*** gcc-6.4.0/gcc/fortran/match.c	Wed Nov  2 20:54:29 2016
--- gcc-6.5.0/gcc/fortran/match.c	Wed Feb  7 22:41:59 2018
*************** gfc_match_type_spec (gfc_typespec *ts)
*** 1983,1993 ****
--- 1983,1999 ----
  {
    match m;
    locus old_locus;
+   char c;
  
    gfc_clear_ts (ts);
    gfc_gobble_whitespace ();
    old_locus = gfc_current_locus;
  
+   /* If c isn't in [a-z], then return immediately.  */
+   c = gfc_peek_ascii_char ();
+   if (!ISALPHA(c))
+     return MATCH_NO;
+ 
    if (match_derived_type_spec (ts) == MATCH_YES)
      {
        /* Enforce F03:C401.  */
*************** gfc_match_type_spec (gfc_typespec *ts)
*** 2033,2038 ****
--- 2039,2046 ----
        ts->type = BT_CHARACTER;
  
        m = gfc_match_char_spec (ts);
+       if (ts->u.cl && ts->u.cl->length)
+ 	gfc_resolve_expr (ts->u.cl->length);
  
        if (m == MATCH_NO)
  	m = MATCH_YES;
*************** gfc_match_deallocate (void)
*** 4267,4274 ****
  	   && (tail->expr->ref->type == REF_COMPONENT
  	       || tail->expr->ref->type == REF_ARRAY));
        if (sym && sym->ts.type == BT_CLASS)
! 	b2 = !(CLASS_DATA (sym)->attr.allocatable
! 	       || CLASS_DATA (sym)->attr.class_pointer);
        else
  	b2 = sym && !(sym->attr.allocatable || sym->attr.pointer
  		      || sym->attr.proc_pointer);
--- 4275,4282 ----
  	   && (tail->expr->ref->type == REF_COMPONENT
  	       || tail->expr->ref->type == REF_ARRAY));
        if (sym && sym->ts.type == BT_CLASS)
! 	b2 = !(CLASS_DATA (sym) && (CLASS_DATA (sym)->attr.allocatable
! 	       || CLASS_DATA (sym)->attr.class_pointer));
        else
  	b2 = sym && !(sym->attr.allocatable || sym->attr.pointer
  		      || sym->attr.proc_pointer);
diff -Nrcpad gcc-6.4.0/gcc/fortran/module.c gcc-6.5.0/gcc/fortran/module.c
*** gcc-6.4.0/gcc/fortran/module.c	Sat Apr  1 09:35:52 2017
--- gcc-6.5.0/gcc/fortran/module.c	Tue Feb 13 08:06:02 2018
*************** dump_module (const char *name, int dump_
*** 6080,6087 ****
      gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
  		     filename_tmp, xstrerror (errno));
  
    gzprintf (module_fp, "GFORTRAN module version '%s' created from %s\n",
! 	    MOD_VERSION, gfc_source_file);
  
    /* Write the module itself.  */
    iomode = IO_OUTPUT;
--- 6080,6089 ----
      gfc_fatal_error ("Can't open module file %qs for writing at %C: %s",
  		     filename_tmp, xstrerror (errno));
  
+   /* Use lbasename to ensure module files are reproducible regardless
+      of the build path (see the reproducible builds project).  */
    gzprintf (module_fp, "GFORTRAN module version '%s' created from %s\n",
! 	    MOD_VERSION, lbasename (gfc_source_file));
  
    /* Write the module itself.  */
    iomode = IO_OUTPUT;
diff -Nrcpad gcc-6.4.0/gcc/fortran/openmp.c gcc-6.5.0/gcc/fortran/openmp.c
*** gcc-6.4.0/gcc/fortran/openmp.c	Thu Jun 22 11:09:58 2017
--- gcc-6.5.0/gcc/fortran/openmp.c	Mon Jun 25 17:47:12 2018
*************** resolve_omp_do (gfc_code *code)
*** 4612,4619 ****
  			     "iteration space at %L", name, &do_code->loc);
  		  break;
  		}
- 	      if (j < i)
- 		break;
  	      do_code2 = do_code2->block->next;
  	    }
  	}
--- 4612,4617 ----
*************** resolve_oacc_nested_loops (gfc_code *cod
*** 4777,4788 ****
  		  || gfc_find_sym_in_expr (ivar, do_code->ext.iterator->end)
  		  || gfc_find_sym_in_expr (ivar, do_code->ext.iterator->step))
  		{
! 		  gfc_error ("!$ACC LOOP %s loops don't form rectangular iteration space at %L",
! 			     clause, &do_code->loc);
  		  break;
  		}
- 	      if (j < i)
- 		break;
  	      do_code2 = do_code2->block->next;
  	    }
  	}
--- 4775,4784 ----
  		  || gfc_find_sym_in_expr (ivar, do_code->ext.iterator->end)
  		  || gfc_find_sym_in_expr (ivar, do_code->ext.iterator->step))
  		{
! 		  gfc_error ("!$ACC LOOP %s loops don't form rectangular "
! 			     "iteration space at %L", clause, &do_code->loc);
  		  break;
  		}
  	      do_code2 = do_code2->block->next;
  	    }
  	}
diff -Nrcpad gcc-6.4.0/gcc/fortran/parse.c gcc-6.5.0/gcc/fortran/parse.c
*** gcc-6.4.0/gcc/fortran/parse.c	Sun Mar 26 20:01:07 2017
--- gcc-6.5.0/gcc/fortran/parse.c	Mon Jun 25 16:52:31 2018
*************** loop:
*** 3568,3573 ****
--- 3568,3574 ----
  	case ST_EQUIVALENCE:
  	case ST_IMPLICIT:
  	case ST_IMPLICIT_NONE:
+ 	case ST_OMP_THREADPRIVATE:
  	case ST_PARAMETER:
  	case ST_STRUCTURE_DECL:
  	case ST_TYPE:
diff -Nrcpad gcc-6.4.0/gcc/fortran/primary.c gcc-6.5.0/gcc/fortran/primary.c
*** gcc-6.4.0/gcc/fortran/primary.c	Fri Dec  9 14:06:47 2016
--- gcc-6.5.0/gcc/fortran/primary.c	Tue Mar  6 19:30:41 2018
*************** match_sym_complex_part (gfc_expr **resul
*** 1250,1257 ****
  
    if (sym->attr.flavor != FL_PARAMETER)
      {
!       gfc_error ("Expected PARAMETER symbol in complex constant at %C");
!       return MATCH_ERROR;
      }
  
    if (!sym->value)
--- 1250,1271 ----
  
    if (sym->attr.flavor != FL_PARAMETER)
      {
!       /* Give the matcher for implied do-loops a chance to run.  This yields
! 	 a much saner error message for "write(*,*) (i, i=1, 6" where the 
! 	 right parenthesis is missing.  */
!       char c;
!       gfc_gobble_whitespace ();
!       c = gfc_peek_ascii_char ();
!       if (c == '=' || c == ',')
! 	{
! 	  m = MATCH_NO;
! 	}
!       else
! 	{
! 	  gfc_error ("Expected PARAMETER symbol in complex constant at %C");
! 	  m = MATCH_ERROR;
! 	}
!       return m;
      }
  
    if (!sym->value)
diff -Nrcpad gcc-6.4.0/gcc/fortran/resolve.c gcc-6.5.0/gcc/fortran/resolve.c
*** gcc-6.4.0/gcc/fortran/resolve.c	Sun Jan 29 14:47:28 2017
--- gcc-6.5.0/gcc/fortran/resolve.c	Fri May 25 20:02:05 2018
*************** resolve_formal_arglist (gfc_symbol *proc
*** 506,513 ****
  	{
  	  if (sym->as != NULL)
  	    {
! 	      gfc_error ("Argument %qs of statement function at %L must "
! 			 "be scalar", sym->name, &sym->declared_at);
  	      continue;
  	    }
  
--- 506,516 ----
  	{
  	  if (sym->as != NULL)
  	    {
! 	      /* F03:C1263 (R1238) The function-name and each dummy-arg-name
! 		 shall be specified, explicitly or implicitly, to be scalar.  */
! 	      gfc_error ("Argument '%s' of statement function '%s' at %L "
! 			 "must be scalar", sym->name, proc->name,
! 			 &proc->declared_at);
  	      continue;
  	    }
  
*************** update_current_proc_array_outer_dependen
*** 2896,2903 ****
  
    /* If SYM has references to outer arrays, so has the procedure calling
       SYM.  If SYM is a procedure pointer, we can assume the worst.  */
!   if (sym->attr.array_outer_dependency
!       || sym->attr.proc_pointer)
      gfc_current_ns->proc_name->attr.array_outer_dependency = 1;
  }
  
--- 2899,2906 ----
  
    /* If SYM has references to outer arrays, so has the procedure calling
       SYM.  If SYM is a procedure pointer, we can assume the worst.  */
!   if ((sym->attr.array_outer_dependency || sym->attr.proc_pointer)
!       && gfc_current_ns->proc_name)
      gfc_current_ns->proc_name->attr.array_outer_dependency = 1;
  }
  
*************** gfc_is_expandable_expr (gfc_expr *e)
*** 6313,6318 ****
--- 6316,6346 ----
    return false;
  }
  
+ 
+ /* Sometimes variables in specification expressions of the result
+    of module procedures in submodules wind up not being the 'real'
+    dummy.  Find this, if possible, in the namespace of the first
+    formal argument.  */
+ 
+ static void
+ fixup_unique_dummy (gfc_expr *e)
+ {
+   gfc_symtree *st = NULL;
+   gfc_symbol *s = NULL;
+ 
+   if (e->symtree->n.sym->ns->proc_name
+       && e->symtree->n.sym->ns->proc_name->formal)
+     s = e->symtree->n.sym->ns->proc_name->formal->sym;
+ 
+   if (s != NULL)
+     st = gfc_find_symtree (s->ns->sym_root, e->symtree->n.sym->name);
+ 
+   if (st != NULL
+       && st->n.sym != NULL
+       && st->n.sym->attr.dummy)
+     e->symtree = st;
+ }
+ 
  /* Resolve an expression.  That is, make sure that types of operands agree
     with their operators, intrinsic operators are converted to function calls
     for overloaded types and unresolved function references are resolved.  */
*************** gfc_resolve_expr (gfc_expr *e)
*** 6337,6342 ****
--- 6365,6378 ----
        actual_arg = false;
        first_actual_arg = false;
      }
+   else if (e->symtree != NULL
+ 	   && *e->symtree->name == '@'
+ 	   && e->symtree->n.sym->attr.dummy)
+     {
+       /* Deal with submodule specification expressions that are not
+ 	 found to be referenced in module.c(read_cleanup).  */
+       fixup_unique_dummy (e);
+     }
  
    switch (e->expr_type)
      {
*************** resolve_allocate_expr (gfc_expr *e, gfc_
*** 7103,7110 ****
    if (code->ext.alloc.ts.type == BT_CHARACTER && !e->ts.deferred
        && !UNLIMITED_POLY (e))
      {
!       int cmp = gfc_dep_compare_expr (e->ts.u.cl->length,
! 				      code->ext.alloc.ts.u.cl->length);
        if (cmp == 1 || cmp == -1 || cmp == -3)
  	{
  	  gfc_error ("Allocating %s at %L with type-spec requires the same "
--- 7139,7151 ----
    if (code->ext.alloc.ts.type == BT_CHARACTER && !e->ts.deferred
        && !UNLIMITED_POLY (e))
      {
!       int cmp;
! 
!       if (!e->ts.u.cl->length)
! 	goto failure;
! 
!       cmp = gfc_dep_compare_expr (e->ts.u.cl->length,
! 				  code->ext.alloc.ts.u.cl->length);
        if (cmp == 1 || cmp == -1 || cmp == -3)
  	{
  	  gfc_error ("Allocating %s at %L with type-spec requires the same "
*************** resolve_select_type (gfc_code *code, gfc
*** 8303,8308 ****
--- 8344,8352 ----
  	code->expr1->symtree->n.sym->ts = code->expr2->ts;
        selector_type = CLASS_DATA (code->expr2)->ts.u.derived;
  
+       if (code->expr2->rank && CLASS_DATA (code->expr1)->as)
+ 	CLASS_DATA (code->expr1)->as->rank = code->expr2->rank;
+ 
        /* F2008: C803 The selector expression must not be coindexed.  */
        if (gfc_is_coindexed (code->expr2))
  	{
*************** resolve_sync (gfc_code *code)
*** 8925,8930 ****
--- 8969,8975 ----
      }
  
    /* Check STAT.  */
+   gfc_resolve_expr (code->expr2);
    if (code->expr2
        && (code->expr2->ts.type != BT_INTEGER || code->expr2->rank != 0
  	  || code->expr2->expr_type != EXPR_VARIABLE))
*************** resolve_sync (gfc_code *code)
*** 8932,8937 ****
--- 8977,8983 ----
  	       &code->expr2->where);
  
    /* Check ERRMSG.  */
+   gfc_resolve_expr (code->expr3);
    if (code->expr3
        && (code->expr3->ts.type != BT_CHARACTER || code->expr3->rank != 0
  	  || code->expr3->expr_type != EXPR_VARIABLE))
*************** resolve_ordinary_assign (gfc_code *code,
*** 9758,9764 ****
  
    /* Assign the 'data' of a class object to a derived type.  */
    if (lhs->ts.type == BT_DERIVED
!       && rhs->ts.type == BT_CLASS)
      gfc_add_data_component (rhs);
  
    /* Insert a GFC_ISYM_CAF_SEND intrinsic, when the LHS is a coindexed variable.
--- 9804,9811 ----
  
    /* Assign the 'data' of a class object to a derived type.  */
    if (lhs->ts.type == BT_DERIVED
!       && rhs->ts.type == BT_CLASS
!       && rhs->expr_type != EXPR_ARRAY)
      gfc_add_data_component (rhs);
  
    /* Insert a GFC_ISYM_CAF_SEND intrinsic, when the LHS is a coindexed variable.
*************** get_temp_from_expr (gfc_expr *e, gfc_nam
*** 9895,9900 ****
--- 9942,9949 ----
    tmp->n.sym->attr.function = 0;
    tmp->n.sym->attr.result = 0;
    tmp->n.sym->attr.flavor = FL_VARIABLE;
+   tmp->n.sym->attr.dummy = 0;
+   tmp->n.sym->attr.intent = INTENT_UNKNOWN;
  
    if (as)
      {
*************** resolve_charlen (gfc_charlen *cl)
*** 11043,11052 ****
  	  specification_expr = saved_specification_expr;
  	  return false;
  	}
      }
    else
      {
- 
        if (!resolve_index_expr (cl->length))
  	{
  	  specification_expr = saved_specification_expr;
--- 11092,11108 ----
  	  specification_expr = saved_specification_expr;
  	  return false;
  	}
+ 
+       /* cl->length has been resolved.  It should have an integer type.  */
+       if (cl->length && cl->length->ts.type != BT_INTEGER)
+ 	{
+ 	  gfc_error ("Scalar INTEGER expression expected at %L",
+ 		     &cl->length->where);
+ 	  return false;
+ 	}
      }
    else
      {
        if (!resolve_index_expr (cl->length))
  	{
  	  specification_expr = saved_specification_expr;
*************** resolve_fl_procedure (gfc_symbol *sym, i
*** 11906,11911 ****
--- 11962,11980 ----
  	}
      }
  
+   /* F2018, C15100: "The result of an elemental function shall be scalar,
+      and shall not have the POINTER or ALLOCATABLE attribute."  The scalar
+      pointer is tested and caught elsewhere.  */
+   if (sym->attr.elemental && sym->result
+       && (sym->result->attr.allocatable || sym->result->attr.pointer))
+     {
+       gfc_error ("Function result variable %qs at %L of elemental "
+ 		 "function %qs shall not have an ALLOCATABLE or POINTER "
+ 		 "attribute", sym->result->name,
+ 		 &sym->result->declared_at, sym->name);
+       return false;
+     }
+ 
    if (sym->attr.is_bind_c && sym->attr.is_c_interop != 1)
      {
        gfc_formal_arglist *curr_arg;
*************** resolve_fl_procedure (gfc_symbol *sym, i
*** 11931,11937 ****
        while (curr_arg != NULL)
          {
            /* Skip implicitly typed dummy args here.  */
! 	  if (curr_arg->sym->attr.implicit_type == 0)
  	    if (!gfc_verify_c_interop_param (curr_arg->sym))
  	      /* If something is found to fail, record the fact so we
  		 can mark the symbol for the procedure as not being
--- 12000,12006 ----
        while (curr_arg != NULL)
          {
            /* Skip implicitly typed dummy args here.  */
! 	  if (curr_arg->sym && curr_arg->sym->attr.implicit_type == 0)
  	    if (!gfc_verify_c_interop_param (curr_arg->sym))
  	      /* If something is found to fail, record the fact so we
  		 can mark the symbol for the procedure as not being
*************** resolve_symbol (gfc_symbol *sym)
*** 13932,13938 ****
  
    if (as)
      {
!       gcc_assert (as->type != AS_IMPLIED_SHAPE);
        if (((as->type == AS_ASSUMED_SIZE && !as->cp_was_assumed)
  	   || as->type == AS_ASSUMED_SHAPE)
  	  && !sym->attr.dummy && !sym->attr.select_type_temporary)
--- 14001,14023 ----
  
    if (as)
      {
!       /* If AS_IMPLIED_SHAPE makes it to here, it must be a bad
! 	 specification expression.  */
!       if (as->type == AS_IMPLIED_SHAPE)
! 	{
! 	  int i;
! 	  for (i=0; i<as->rank; i++)
! 	    {
! 	      if (as->lower[i] != NULL && as->upper[i] == NULL)
! 		{
! 		  gfc_error ("Bad specification for assumed size array at %L",
! 			     &as->lower[i]->where);
! 		  return;
! 		}
! 	    }
! 	  gcc_unreachable();
! 	}
! 
        if (((as->type == AS_ASSUMED_SIZE && !as->cp_was_assumed)
  	   || as->type == AS_ASSUMED_SHAPE)
  	  && !sym->attr.dummy && !sym->attr.select_type_temporary)
*************** resolve_symbol (gfc_symbol *sym)
*** 14493,14499 ****
  
        if ((!a->save && !a->dummy && !a->pointer
  	   && !a->in_common && !a->use_assoc
! 	   && !a->result && !a->function)
  	  || (a->dummy && a->intent == INTENT_OUT && !a->pointer))
  	apply_default_init (sym);
        else if (a->function && sym->result && a->access != ACCESS_PRIVATE
--- 14578,14589 ----
  
        if ((!a->save && !a->dummy && !a->pointer
  	   && !a->in_common && !a->use_assoc
! 	   && a->referenced
! 	   && !((a->function || a->result)
! 		&& (!a->dimension
! 		    || sym->ts.u.derived->attr.alloc_comp
! 		    || sym->ts.u.derived->attr.pointer_comp))
! 	   && !(a->function && sym != sym->result))
  	  || (a->dummy && a->intent == INTENT_OUT && !a->pointer))
  	apply_default_init (sym);
        else if (a->function && sym->result && a->access != ACCESS_PRIVATE
*************** resolve_equivalence (gfc_equiv *eq)
*** 15321,15329 ****
  	  && sym->ns->proc_name->attr.pure
  	  && sym->attr.in_common)
  	{
! 	  gfc_error ("Common block member %qs at %L cannot be an EQUIVALENCE "
! 		     "object in the pure procedure %qs",
! 		     sym->name, &e->where, sym->ns->proc_name->name);
  	  break;
  	}
  
--- 15411,15432 ----
  	  && sym->ns->proc_name->attr.pure
  	  && sym->attr.in_common)
  	{
! 	  /* Need to check for symbols that may have entered the pure
! 	     procedure via a USE statement.  */
! 	  bool saw_sym = false;
! 	  if (sym->ns->use_stmts)
! 	    {
! 	      gfc_use_rename *r;
! 	      for (r = sym->ns->use_stmts->rename; r; r = r->next)
! 		if (strcmp(r->use_name, sym->name) == 0) saw_sym = true; 
! 	    }
! 	  else
! 	    saw_sym = true;
! 
! 	  if (saw_sym)
! 	    gfc_error ("COMMON block member %qs at %L cannot be an "
! 		       "EQUIVALENCE object in the pure procedure %qs",
! 		       sym->name, &e->where, sym->ns->proc_name->name);
  	  break;
  	}
  
diff -Nrcpad gcc-6.4.0/gcc/fortran/simplify.c gcc-6.5.0/gcc/fortran/simplify.c
*** gcc-6.4.0/gcc/fortran/simplify.c	Wed Nov 23 16:26:38 2016
--- gcc-6.5.0/gcc/fortran/simplify.c	Mon Mar 19 22:49:33 2018
***************
*** 1,5 ****
  /* Simplify intrinsic functions at compile-time.
!    Copyright (C) 2000-2016 Free Software Foundation, Inc.
     Contributed by Andy Vaught & Katherine Holcomb
  
  This file is part of GCC.
--- 1,5 ----
  /* Simplify intrinsic functions at compile-time.
!    Copyright (C) 2000-2016, 2018 Free Software Foundation, Inc.
     Contributed by Andy Vaught & Katherine Holcomb
  
  This file is part of GCC.
*************** gfc_simplify_cshift (gfc_expr *array, gf
*** 1838,1848 ****
        sz = mpz_get_si (size);
        mpz_clear (size);
  
        /* Adjust shft to deal with right or left shifts. */
!       shft = shft < 0 ? 1 - shft : shft;
  
        /* Special case: Shift to the original order!  */
!       if (sz == 0 || shft % sz == 0)
  	return a;
  
        result = gfc_copy_expr (a);
--- 1838,1854 ----
        sz = mpz_get_si (size);
        mpz_clear (size);
  
+       /* Special case: Zero-sized array.  */
+       if (sz == 0)
+ 	return a;
+ 
        /* Adjust shft to deal with right or left shifts. */
!       shft = shft % sz;
!       if (shft < 0)
! 	shft += sz;
  
        /* Special case: Shift to the original order!  */
!       if (shft % sz == 0)
  	return a;
  
        result = gfc_copy_expr (a);
*************** gfc_simplify_matmul (gfc_expr *matrix_a,
*** 4011,4020 ****
        || !is_constant_array_expr (matrix_b))
      return NULL;
  
!   gcc_assert (gfc_compare_types (&matrix_a->ts, &matrix_b->ts));
!   result = gfc_get_array_expr (matrix_a->ts.type,
! 			       matrix_a->ts.kind,
! 			       &matrix_a->where);
  
    if (matrix_a->rank == 1 && matrix_b->rank == 2)
      {
--- 4017,4039 ----
        || !is_constant_array_expr (matrix_b))
      return NULL;
  
!   /* MATMUL should do mixed-mode arithmetic.  Set the result type.  */
!   if (matrix_a->ts.type != matrix_b->ts.type)
!     {
!       gfc_expr e;
!       e.expr_type = EXPR_OP;
!       gfc_clear_ts (&e.ts);
!       e.value.op.op = INTRINSIC_NONE;
!       e.value.op.op1 = matrix_a;
!       e.value.op.op2 = matrix_b;
!       gfc_type_convert_binary (&e, 1);
!       result = gfc_get_array_expr (e.ts.type, e.ts.kind, &matrix_a->where);
!     }
!   else
!     {
!       result = gfc_get_array_expr (matrix_a->ts.type, matrix_a->ts.kind,
! 				   &matrix_a->where);
!     }
  
    if (matrix_a->rank == 1 && matrix_b->rank == 2)
      {
*************** gfc_simplify_transfer (gfc_expr *source,
*** 6355,6362 ****
      return NULL;
  
    /* Calculate the size of the source.  */
!   if (source->expr_type == EXPR_ARRAY
!       && !gfc_array_size (source, &tmp))
      gfc_internal_error ("Failure getting length of a constant array.");
  
    /* Create an empty new expression with the appropriate characteristics.  */
--- 6374,6380 ----
      return NULL;
  
    /* Calculate the size of the source.  */
!   if (source->expr_type == EXPR_ARRAY && !gfc_array_size (source, &tmp))
      gfc_internal_error ("Failure getting length of a constant array.");
  
    /* Create an empty new expression with the appropriate characteristics.  */
*************** gfc_simplify_transfer (gfc_expr *source,
*** 6364,6370 ****
  				  &source->where);
    result->ts = mold->ts;
  
!   mold_element = mold->expr_type == EXPR_ARRAY
  		 ? gfc_constructor_first (mold->value.constructor)->expr
  		 : mold;
  
--- 6382,6388 ----
  				  &source->where);
    result->ts = mold->ts;
  
!   mold_element = (mold->expr_type == EXPR_ARRAY && mold->value.constructor)
  		 ? gfc_constructor_first (mold->value.constructor)->expr
  		 : mold;
  
*************** gfc_convert_constant (gfc_expr *e, bt ty
*** 6908,6933 ****
  	{
  	  gfc_expr *tmp;
  	  if (c->iterator == NULL)
! 	    tmp = f (c->expr, kind);
  	  else
  	    {
  	      g = gfc_convert_constant (c->expr, type, kind);
! 	      if (g == &gfc_bad_expr)
  	        {
  		  gfc_free_expr (result);
  		  return g;
  		}
! 	      tmp = g;
! 	    }
! 
! 	  if (tmp == NULL)
! 	    {
! 	      gfc_free_expr (result);
! 	      return NULL;
  	    }
- 
- 	  gfc_constructor_append_expr (&result->value.constructor,
- 				       tmp, &c->where);
  	}
  
        break;
--- 6926,6957 ----
  	{
  	  gfc_expr *tmp;
  	  if (c->iterator == NULL)
! 	    {
! 	      tmp = f (c->expr, kind);
! 	      if (tmp == NULL)
! 		{
! 		  gfc_free_expr (result);
! 		  return NULL;
! 		}
! 
! 	      gfc_constructor_append_expr (&result->value.constructor,
! 					   tmp, &c->where);
! 	    }
  	  else
  	    {
+ 	      gfc_constructor *n;
  	      g = gfc_convert_constant (c->expr, type, kind);
! 	      if (g == NULL || g == &gfc_bad_expr)
  	        {
  		  gfc_free_expr (result);
  		  return g;
  		}
! 	      n = gfc_constructor_get ();
! 	      n->expr = g;
! 	      n->iterator = gfc_copy_iterator (c->iterator);
! 	      n->where = c->where;
! 	      gfc_constructor_append (&result->value.constructor, n);
  	    }
  	}
  
        break;
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-array.c gcc-6.5.0/gcc/fortran/trans-array.c
*** gcc-6.4.0/gcc/fortran/trans-array.c	Thu Aug 11 08:12:31 2016
--- gcc-6.5.0/gcc/fortran/trans-array.c	Tue Jul  3 10:45:52 2018
*************** gfc_trans_array_ctor_element (stmtblock_
*** 1431,1436 ****
--- 1431,1447 ----
  	    }
  	}
      }
+   else if (GFC_CLASS_TYPE_P (TREE_TYPE (se->expr))
+ 	   && !GFC_CLASS_TYPE_P (gfc_get_element_type (TREE_TYPE (desc))))
+     {
+       /* Assignment of a CLASS array constructor to a derived type array.  */
+       if (expr->expr_type == EXPR_FUNCTION)
+ 	se->expr = gfc_evaluate_now (se->expr, pblock);
+       se->expr = gfc_class_data_get (se->expr);
+       se->expr = build_fold_indirect_ref_loc (input_location, se->expr);
+       se->expr = fold_convert (TREE_TYPE (tmp), se->expr);
+       gfc_add_modify (&se->pre, tmp, se->expr);
+     }
    else
      {
        /* TODO: Should the frontend already have done this conversion?  */
*************** gfc_add_loop_ss_code (gfc_loopinfo * loo
*** 2604,2609 ****
--- 2615,2622 ----
  	  gfc_init_se (&se, NULL);
  	  se.loop = loop;
  	  se.ss = ss;
+ 	  if (gfc_is_class_array_function (expr))
+ 	    expr->must_finalize = 1;
  	  gfc_conv_expr (&se, expr);
  	  gfc_add_block_to_block (&outer_loop->pre, &se.pre);
  	  gfc_add_block_to_block (&outer_loop->post, &se.post);
*************** conv_array_index_offset (gfc_se * se, gf
*** 3009,3015 ****
      }
  
    /* Multiply by the stride.  */
!   if (!integer_onep (stride))
      index = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
  			     index, stride);
  
--- 3022,3028 ----
      }
  
    /* Multiply by the stride.  */
!   if (stride != NULL && !integer_onep (stride))
      index = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
  			     index, stride);
  
*************** build_class_array_ref (gfc_se *se, tree
*** 3034,3040 ****
  
    if (expr == NULL
        || (expr->ts.type != BT_CLASS
! 	  && !gfc_is_alloc_class_array_function (expr)))
      return false;
  
    if (expr->symtree && expr->symtree->n.sym->ts.type == BT_CLASS)
--- 3047,3053 ----
  
    if (expr == NULL
        || (expr->ts.type != BT_CLASS
! 	  && !gfc_is_class_array_function (expr)))
      return false;
  
    if (expr->symtree && expr->symtree->n.sym->ts.type == BT_CLASS)
*************** build_class_array_ref (gfc_se *se, tree
*** 3063,3074 ****
      return false;
  
    if (class_ref == NULL && expr->symtree->n.sym->attr.function
!       && expr->symtree->n.sym == expr->symtree->n.sym->result)
      {
-       gcc_assert (expr->symtree->n.sym->backend_decl == current_function_decl);
        decl = gfc_get_fake_result_decl (expr->symtree->n.sym, 0);
      }
!   else if (gfc_is_alloc_class_array_function (expr))
      {
        size = NULL_TREE;
        decl = NULL_TREE;
--- 3076,3087 ----
      return false;
  
    if (class_ref == NULL && expr->symtree->n.sym->attr.function
!       && expr->symtree->n.sym == expr->symtree->n.sym->result
!       && expr->symtree->n.sym->backend_decl == current_function_decl)
      {
        decl = gfc_get_fake_result_decl (expr->symtree->n.sym, 0);
      }
!   else if (gfc_is_class_array_function (expr))
      {
        size = NULL_TREE;
        decl = NULL_TREE;
*************** build_class_array_ref (gfc_se *se, tree
*** 3091,3096 ****
--- 3104,3111 ----
  
        if (decl == NULL_TREE)
  	return false;
+ 
+       se->class_vptr = gfc_evaluate_now (gfc_class_vptr_get (decl), &se->pre);
      }
    else if (class_ref == NULL)
      {
*************** structure_alloc_comps (gfc_symbol * der_
*** 8225,8231 ****
  	  break;
  
  	case COPY_ALLOC_COMP:
! 	  if (c->attr.pointer)
  	    continue;
  
  	  /* We need source and destination components.  */
--- 8240,8246 ----
  	  break;
  
  	case COPY_ALLOC_COMP:
! 	  if (c->attr.pointer || c->attr.proc_pointer)
  	    continue;
  
  	  /* We need source and destination components.  */
*************** gfc_walk_function_expr (gfc_ss * ss, gfc
*** 9526,9532 ****
    if (!sym)
      sym = expr->symtree->n.sym;
  
!   if (gfc_is_alloc_class_array_function (expr))
      return gfc_get_array_ss (ss, expr,
  			     CLASS_DATA (expr->value.function.esym->result)->as->rank,
  			     GFC_SS_FUNCTION);
--- 9541,9547 ----
    if (!sym)
      sym = expr->symtree->n.sym;
  
!   if (gfc_is_class_array_function (expr))
      return gfc_get_array_ss (ss, expr,
  			     CLASS_DATA (expr->value.function.esym->result)->as->rank,
  			     GFC_SS_FUNCTION);
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-decl.c gcc-6.5.0/gcc/fortran/trans-decl.c
*** gcc-6.4.0/gcc/fortran/trans-decl.c	Sun Jan 29 13:50:23 2017
--- gcc-6.5.0/gcc/fortran/trans-decl.c	Wed May 16 11:42:47 2018
*************** gfc_finish_var_decl (tree decl, gfc_symb
*** 571,580 ****
       function scope.  */
    if (current_function_decl != NULL_TREE)
      {
!       if (sym->ns->proc_name->backend_decl == current_function_decl
! 	  || sym->result == sym)
  	gfc_add_decl_to_function (decl);
!       else if (sym->ns->proc_name->attr.flavor == FL_LABEL)
  	/* This is a BLOCK construct.  */
  	add_decl_as_local (decl);
        else
--- 571,582 ----
       function scope.  */
    if (current_function_decl != NULL_TREE)
      {
!       if (sym->ns->proc_name
! 	  && (sym->ns->proc_name->backend_decl == current_function_decl
! 	      || sym->result == sym))
  	gfc_add_decl_to_function (decl);
!       else if (sym->ns->proc_name
! 	       && sym->ns->proc_name->attr.flavor == FL_LABEL)
  	/* This is a BLOCK construct.  */
  	add_decl_as_local (decl);
        else
*************** gfc_finish_var_decl (tree decl, gfc_symb
*** 646,652 ****
      }
  
    /* Keep variables larger than max-stack-var-size off stack.  */
!   if (!sym->ns->proc_name->attr.recursive
        && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
        && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
  	 /* Put variable length auto array pointers always into stack.  */
--- 648,654 ----
      }
  
    /* Keep variables larger than max-stack-var-size off stack.  */
!   if (sym->ns->proc_name && !sym->ns->proc_name->attr.recursive
        && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
        && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
  	 /* Put variable length auto array pointers always into stack.  */
*************** gfc_null_and_pass_deferred_len (gfc_symb
*** 4007,4012 ****
--- 4009,4032 ----
    return tmp;
  }
  
+ 
+ /* Get the result expression for a procedure.  */
+ 
+ static tree
+ get_proc_result (gfc_symbol* sym)
+ {
+   if (sym->attr.subroutine || sym == sym->result)
+     {
+       if (current_fake_result_decl != NULL)
+ 	return TREE_VALUE (current_fake_result_decl);
+ 
+       return NULL_TREE;
+     }
+ 
+   return sym->result->backend_decl;
+ }
+ 
+ 
  /* Generate function entry and exit code, and add it to the function body.
     This includes:
      Allocation and initialization of array variables.
*************** gfc_trans_deferred_vars (gfc_symbol * pr
*** 4116,4121 ****
--- 4136,4156 ----
        else
  	gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
      }
+   else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
+     {
+       /* Nullify explicit return class arrays on entry.  */
+       tree type;
+       tmp = get_proc_result (proc_sym);
+ 	if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
+ 	  {
+ 	    gfc_start_block (&init);
+ 	    tmp = gfc_class_data_get (tmp);
+ 	    type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp));
+ 	    gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0));
+ 	    gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
+ 	  }
+     }
+ 
  
    /* Initialize the INTENT(OUT) derived type dummy arguments.  This
       should be done here so that the offsets and lbounds of arrays
*************** gfc_trans_deferred_vars (gfc_symbol * pr
*** 4364,4370 ****
  		    && sym->ts.u.cl->passed_length)
  		tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc);
  	      else
! 		gfc_restore_backend_locus (&loc);
  
  	      /* Deallocate when leaving the scope. Nullifying is not
  		 needed.  */
--- 4399,4408 ----
  		    && sym->ts.u.cl->passed_length)
  		tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc);
  	      else
! 		{
! 		  gfc_restore_backend_locus (&loc);
! 		  tmp = NULL_TREE;
! 		}
  
  	      /* Deallocate when leaving the scope. Nullifying is not
  		 needed.  */
*************** create_main_function (tree fndecl)
*** 5827,5849 ****
  }
  
  
- /* Get the result expression for a procedure.  */
- 
- static tree
- get_proc_result (gfc_symbol* sym)
- {
-   if (sym->attr.subroutine || sym == sym->result)
-     {
-       if (current_fake_result_decl != NULL)
- 	return TREE_VALUE (current_fake_result_decl);
- 
-       return NULL_TREE;
-     }
- 
-   return sym->result->backend_decl;
- }
- 
- 
  /* Generate an appropriate return-statement for a procedure.  */
  
  tree
--- 5865,5870 ----
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-expr.c gcc-6.5.0/gcc/fortran/trans-expr.c
*** gcc-6.4.0/gcc/fortran/trans-expr.c	Fri Jun  9 18:10:48 2017
--- gcc-6.5.0/gcc/fortran/trans-expr.c	Sun Mar  4 05:11:31 2018
*************** gfc_conv_class_to_class (gfc_se *parmse,
*** 890,895 ****
--- 890,896 ----
      }
  
    if ((ref == NULL || class_ref == ref)
+       && !(gfc_is_class_array_function (e) && parmse->class_vptr != NULL_TREE)
        && (!class_ts.u.derived->components->as
  	  || class_ts.u.derived->components->as->rank != -1))
      return;
*************** gfc_conv_class_to_class (gfc_se *parmse,
*** 960,967 ****
       First we have to find the corresponding class reference.  */
  
    tmp = NULL_TREE;
!   if (class_ref == NULL
! 	&& e->symtree && e->symtree->n.sym->ts.type == BT_CLASS)
      {
        tmp = e->symtree->n.sym->backend_decl;
        if (DECL_LANG_SPECIFIC (tmp) && GFC_DECL_SAVED_DESCRIPTOR (tmp))
--- 961,971 ----
       First we have to find the corresponding class reference.  */
  
    tmp = NULL_TREE;
!   if (gfc_is_class_array_function (e)
!       && parmse->class_vptr != NULL_TREE)
!     tmp = parmse->class_vptr;
!   else if (class_ref == NULL
! 	   && e->symtree && e->symtree->n.sym->ts.type == BT_CLASS)
      {
        tmp = e->symtree->n.sym->backend_decl;
        if (DECL_LANG_SPECIFIC (tmp) && GFC_DECL_SAVED_DESCRIPTOR (tmp))
*************** gfc_conv_class_to_class (gfc_se *parmse,
*** 988,994 ****
    if (TREE_CODE (TREE_TYPE (tmp)) == REFERENCE_TYPE)
      tmp = build_fold_indirect_ref_loc (input_location, tmp);
  
!   vptr = gfc_class_vptr_get (tmp);
    gfc_add_modify (&block, ctree,
  		  fold_convert (TREE_TYPE (ctree), vptr));
  
--- 992,1002 ----
    if (TREE_CODE (TREE_TYPE (tmp)) == REFERENCE_TYPE)
      tmp = build_fold_indirect_ref_loc (input_location, tmp);
  
!   if (!(gfc_is_class_array_function (e) && parmse->class_vptr))
!     vptr = gfc_class_vptr_get (tmp);
!   else
!     vptr = tmp;
! 
    gfc_add_modify (&block, ctree,
  		  fold_convert (TREE_TYPE (ctree), vptr));
  
*************** gfc_conv_component_ref (gfc_se * se, gfc
*** 2348,2354 ****
       On the other hand, if the context is a UNION or a MAP (a
       RECORD_TYPE within a UNION_TYPE) always use the given FIELD_DECL.  */
  
!   if (context != TREE_TYPE (decl) 
        && !(   TREE_CODE (TREE_TYPE (field)) == UNION_TYPE /* Field is union */
             || TREE_CODE (context) == UNION_TYPE))         /* Field is map */
      {
--- 2356,2362 ----
       On the other hand, if the context is a UNION or a MAP (a
       RECORD_TYPE within a UNION_TYPE) always use the given FIELD_DECL.  */
  
!   if (context != TREE_TYPE (decl)
        && !(   TREE_CODE (TREE_TYPE (field)) == UNION_TYPE /* Field is union */
             || TREE_CODE (context) == UNION_TYPE))         /* Field is map */
      {
*************** gfc_map_intrinsic_function (gfc_expr *ex
*** 4150,4158 ****
        if (arg2 && arg2->expr_type == EXPR_CONSTANT)
  	d = mpz_get_si (arg2->value.integer) - 1;
        else
! 	/* TODO: If the need arises, this could produce an array of
! 	   ubound/lbounds.  */
! 	gcc_unreachable ();
  
        if (expr->value.function.isym->id == GFC_ISYM_LBOUND)
  	{
--- 4158,4164 ----
        if (arg2 && arg2->expr_type == EXPR_CONSTANT)
  	d = mpz_get_si (arg2->value.integer) - 1;
        else
! 	return false;
  
        if (expr->value.function.isym->id == GFC_ISYM_LBOUND)
  	{
*************** gfc_apply_interface_mapping_to_expr (gfc
*** 4281,4286 ****
--- 4287,4294 ----
  
        if (expr->value.function.esym == NULL
  	    && expr->value.function.isym != NULL
+ 	    && expr->value.function.actual
+ 	    && expr->value.function.actual->expr
  	    && expr->value.function.actual->expr->symtree
  	    && gfc_map_intrinsic_function (expr, mapping))
  	break;
*************** gfc_conv_subref_array_arg (gfc_se * parm
*** 4409,4415 ****
    /* Reset the offset for the function call since the loop
       is zero based on the data pointer.  Note that the temp
       comes first in the loop chain since it is added second.  */
!   if (gfc_is_alloc_class_array_function (expr))
      {
        tmp = loop.ss->loop_chain->info->data.array.descriptor;
        gfc_conv_descriptor_offset_set (&loop.pre, tmp,
--- 4417,4423 ----
    /* Reset the offset for the function call since the loop
       is zero based on the data pointer.  Note that the temp
       comes first in the loop chain since it is added second.  */
!   if (gfc_is_class_array_function (expr))
      {
        tmp = loop.ss->loop_chain->info->data.array.descriptor;
        gfc_conv_descriptor_offset_set (&loop.pre, tmp,
*************** gfc_conv_subref_array_arg (gfc_se * parm
*** 4458,4464 ****
    dimen = rse.ss->dimen;
  
    /* Skip the write-out loop for this case.  */
!   if (gfc_is_alloc_class_array_function (expr))
      goto class_array_fcn;
  
    /* Calculate the bounds of the scalarization.  */
--- 4466,4472 ----
    dimen = rse.ss->dimen;
  
    /* Skip the write-out loop for this case.  */
!   if (gfc_is_class_array_function (expr))
      goto class_array_fcn;
  
    /* Calculate the bounds of the scalarization.  */
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 4751,4757 ****
  	      gcc_assert ((!comp && gfc_return_by_reference (sym)
  			   && sym->result->attr.dimension)
  			  || (comp && comp->attr.dimension)
! 			  || gfc_is_alloc_class_array_function (expr));
  	      gcc_assert (se->loop != NULL);
  	      /* Access the previously obtained result.  */
  	      gfc_conv_tmp_array_ref (se);
--- 4759,4765 ----
  	      gcc_assert ((!comp && gfc_return_by_reference (sym)
  			   && sym->result->attr.dimension)
  			  || (comp && comp->attr.dimension)
! 			  || gfc_is_class_array_function (expr));
  	      gcc_assert (se->loop != NULL);
  	      /* Access the previously obtained result.  */
  	      gfc_conv_tmp_array_ref (se);
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 5404,5410 ****
  				fsym ? fsym->attr.intent : INTENT_INOUT,
  				fsym && fsym->attr.pointer);
  
! 	      else if (gfc_is_alloc_class_array_function (e)
  			 && fsym && fsym->ts.type == BT_DERIVED)
  		/* See previous comment.  For function actual argument,
  		   the write out is not needed so the intent is set as
--- 5412,5418 ----
  				fsym ? fsym->attr.intent : INTENT_INOUT,
  				fsym && fsym->attr.pointer);
  
! 	      else if (gfc_is_class_array_function (e)
  			 && fsym && fsym->ts.type == BT_DERIVED)
  		/* See previous comment.  For function actual argument,
  		   the write out is not needed so the intent is set as
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 5554,5560 ****
  
  	  tmp = gfc_deallocate_alloc_comp (e->ts.u.derived, tmp, parm_rank);
  
! 	  gfc_add_expr_to_block (&se->post, tmp);
          }
  
        /* Add argument checking of passing an unallocated/NULL actual to
--- 5562,5568 ----
  
  	  tmp = gfc_deallocate_alloc_comp (e->ts.u.derived, tmp, parm_rank);
  
! 	  gfc_prepend_expr_to_block (&post, tmp);
          }
  
        /* Add argument checking of passing an unallocated/NULL actual to
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 6193,6199 ****
  	 call the finalization function of the temporary. Note that the
  	 nullification of allocatable components needed by the result
  	 is done in gfc_trans_assignment_1.  */
!       if (expr && ((gfc_is_alloc_class_array_function (expr)
  		    && se->ss && se->ss->loop)
  		   || gfc_is_alloc_class_scalar_function (expr))
  	  && se->expr && GFC_CLASS_TYPE_P (TREE_TYPE (se->expr))
--- 6201,6207 ----
  	 call the finalization function of the temporary. Note that the
  	 nullification of allocatable components needed by the result
  	 is done in gfc_trans_assignment_1.  */
!       if (expr && ((gfc_is_class_array_function (expr)
  		    && se->ss && se->ss->loop)
  		   || gfc_is_alloc_class_scalar_function (expr))
  	  && se->expr && GFC_CLASS_TYPE_P (TREE_TYPE (se->expr))
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 6204,6209 ****
--- 6212,6218 ----
  	  int n;
  	  if (se->ss && se->ss->loop)
  	    {
+ 	      gfc_add_block_to_block (&se->ss->loop->pre, &se->pre);
  	      se->expr = gfc_evaluate_now (se->expr, &se->ss->loop->pre);
  	      tmp = gfc_class_data_get (se->expr);
  	      info->descriptor = tmp;
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 6226,6231 ****
--- 6235,6245 ----
  			CLASS_DATA (expr->value.function.esym->result)->attr);
  	    }
  
+ 	  if ((gfc_is_class_array_function (expr)
+ 	       || gfc_is_alloc_class_scalar_function (expr))
+ 	      && CLASS_DATA (expr->value.function.esym->result)->attr.pointer)
+ 	    goto no_finalization;
+ 
  	  final_fndecl = gfc_class_vtab_final_get (se->expr);
  	  is_final = fold_build2_loc (input_location, NE_EXPR,
  				      boolean_type_node,
*************** gfc_conv_procedure_call (gfc_se * se, gf
*** 6256,6261 ****
--- 6270,6277 ----
  	      tmp = gfc_call_free (tmp);
  	      gfc_add_expr_to_block (&se->post, tmp);
  	    }
+ 
+ no_finalization:
  	  expr->must_finalize = 0;
  	}
  
*************** arrayfunc_assign_needs_temporary (gfc_ex
*** 8394,8400 ****
    gfc_symbol *sym = expr1->symtree->n.sym;
  
    /* Play it safe with class functions assigned to a derived type.  */
!   if (gfc_is_alloc_class_array_function (expr2)
        && expr1->ts.type == BT_DERIVED)
      return true;
  
--- 8410,8416 ----
    gfc_symbol *sym = expr1->symtree->n.sym;
  
    /* Play it safe with class functions assigned to a derived type.  */
!   if (gfc_is_class_array_function (expr2)
        && expr1->ts.type == BT_DERIVED)
      return true;
  
*************** gfc_trans_assignment_1 (gfc_expr * expr1
*** 9273,9279 ****
    rss = NULL;
  
    if ((expr1->ts.type == BT_DERIVED)
!       && (gfc_is_alloc_class_array_function (expr2)
  	  || gfc_is_alloc_class_scalar_function (expr2)))
      expr2->must_finalize = 1;
  
--- 9289,9295 ----
    rss = NULL;
  
    if ((expr1->ts.type == BT_DERIVED)
!       && (gfc_is_class_array_function (expr2)
  	  || gfc_is_alloc_class_scalar_function (expr2)))
      expr2->must_finalize = 1;
  
*************** gfc_trans_assignment_1 (gfc_expr * expr1
*** 9444,9452 ****
       nullification occurs before the call to the finalizer. In the case of
       a scalar to array assignment, this is done in gfc_trans_scalar_assign
       as part of the deep copy.  */
!   if (!scalar_to_array && (expr1->ts.type == BT_DERIVED)
! 					      && (gfc_is_alloc_class_array_function (expr2)
! 						      || gfc_is_alloc_class_scalar_function (expr2)))
      {
        tmp = rse.expr;
        tmp = gfc_nullify_alloc_comp (expr1->ts.u.derived, rse.expr, 0);
--- 9460,9468 ----
       nullification occurs before the call to the finalizer. In the case of
       a scalar to array assignment, this is done in gfc_trans_scalar_assign
       as part of the deep copy.  */
!   if (!scalar_to_array
!       && (expr1->ts.type == BT_DERIVED)
!       && (gfc_is_class_array_function (expr2) || gfc_is_alloc_class_scalar_function (expr2)))
      {
        tmp = rse.expr;
        tmp = gfc_nullify_alloc_comp (expr1->ts.u.derived, rse.expr, 0);
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-intrinsic.c gcc-6.5.0/gcc/fortran/trans-intrinsic.c
*** gcc-6.4.0/gcc/fortran/trans-intrinsic.c	Thu Oct 27 05:00:46 2016
--- gcc-6.5.0/gcc/fortran/trans-intrinsic.c	Sun May  6 12:14:11 2018
*************** conv_caf_send (gfc_code *code) {
*** 1249,1255 ****
  
    lhs_expr = code->ext.actual->expr;
    rhs_expr = code->ext.actual->next->expr;
!   may_require_tmp = gfc_check_dependency (lhs_expr, rhs_expr, false) == 0
  		    ? boolean_false_node : boolean_true_node;
    gfc_init_block (&block);
  
--- 1249,1255 ----
  
    lhs_expr = code->ext.actual->expr;
    rhs_expr = code->ext.actual->next->expr;
!   may_require_tmp = gfc_check_dependency (lhs_expr, rhs_expr, true) == 0
  		    ? boolean_false_node : boolean_true_node;
    gfc_init_block (&block);
  
*************** conv_caf_send (gfc_code *code) {
*** 1266,1299 ****
      }
    else
      {
!       /* If has_vector, pass descriptor for whole array and the
!          vector bounds separately.  */
!       gfc_array_ref *ar, ar2;
!       bool has_vector = false;
  
!       if (gfc_is_coindexed (lhs_expr) && gfc_has_vector_subscript (lhs_expr))
  	{
!           has_vector = true;
!           ar = gfc_find_array_ref (lhs_expr);
! 	  ar2 = *ar;
! 	  memset (ar, '\0', sizeof (*ar));
! 	  ar->as = ar2.as;
! 	  ar->type = AR_FULL;
  	}
!       lhs_se.want_pointer = 1;
!       gfc_conv_expr_descriptor (&lhs_se, lhs_expr);
!       /* Using gfc_conv_expr_descriptor, we only get the descriptor, but that
!          has the wrong type if component references are done.  */
!       lhs_type = gfc_typenode_for_spec (&lhs_expr->ts);
!       tmp = build_fold_indirect_ref_loc (input_location, lhs_se.expr);
!       gfc_add_modify (&lhs_se.pre, gfc_conv_descriptor_dtype (tmp),
!                       gfc_get_dtype_rank_type (has_vector ? ar2.dimen
! 							  : lhs_expr->rank,
! 		      lhs_type));
!       if (has_vector)
  	{
! 	  vec = conv_caf_vector_subscript (&block, lhs_se.expr, &ar2);
! 	  *ar = ar2;
  	}
      }
  
--- 1266,1389 ----
      }
    else
      {
!       bool has_vector = gfc_has_vector_subscript (lhs_expr);
  
!       if (gfc_is_coindexed (lhs_expr) || !has_vector)
  	{
! 	  /* If has_vector, pass descriptor for whole array and the
! 	     vector bounds separately.  */
! 	  gfc_array_ref *ar, ar2;
! 	  bool has_tmp_lhs_array = false;
! 	  if (has_vector)
! 	    {
! 	      has_tmp_lhs_array = true;
! 	      ar = gfc_find_array_ref (lhs_expr);
! 	      ar2 = *ar;
! 	      memset (ar, '\0', sizeof (*ar));
! 	      ar->as = ar2.as;
! 	      ar->type = AR_FULL;
! 	    }
! 	  lhs_se.want_pointer = 1;
! 	  gfc_conv_expr_descriptor (&lhs_se, lhs_expr);
! 	  /* Using gfc_conv_expr_descriptor, we only get the descriptor, but
! 	     that has the wrong type if component references are done.  */
! 	  lhs_type = gfc_typenode_for_spec (&lhs_expr->ts);
! 	  tmp = build_fold_indirect_ref_loc (input_location, lhs_se.expr);
! 	  gfc_add_modify (&lhs_se.pre, gfc_conv_descriptor_dtype (tmp),
! 			  gfc_get_dtype_rank_type (has_vector ? ar2.dimen
! 							      : lhs_expr->rank,
! 						   lhs_type));
! 	  if (has_tmp_lhs_array)
! 	    {
! 	      vec = conv_caf_vector_subscript (&block, lhs_se.expr, &ar2);
! 	      *ar = ar2;
! 	    }
  	}
!       else
  	{
! 	  /* Special casing for arr1 ([...]) = arr2[...], i.e. caf_get to
! 	     indexed array expression.  This is rewritten to:
! 
! 	     tmp_array = arr2[...]
! 	     arr1 ([...]) = tmp_array
! 
! 	     because using the standard gfc_conv_expr (lhs_expr) did the
! 	     assignment with lhs and rhs exchanged.  */
! 
! 	  gfc_ss *lss_for_tmparray, *lss_real;
! 	  gfc_loopinfo loop;
! 	  gfc_se se;
! 	  stmtblock_t body;
! 	  tree tmparr_desc, src;
! 	  tree index = gfc_index_zero_node;
! 	  tree stride = gfc_index_zero_node;
! 	  int n;
! 
! 	  /* Walk both sides of the assignment, once to get the shape of the
! 	     temporary array to create right.  */
! 	  lss_for_tmparray = gfc_walk_expr (lhs_expr);
! 	  /* And a second time to be able to create an assignment of the
! 	     temporary to the lhs_expr.  gfc_trans_create_temp_array replaces
! 	     the tree in the descriptor with the one for the temporary
! 	     array.  */
! 	  lss_real = gfc_walk_expr (lhs_expr);
! 	  gfc_init_loopinfo (&loop);
! 	  gfc_add_ss_to_loop (&loop, lss_for_tmparray);
! 	  gfc_add_ss_to_loop (&loop, lss_real);
! 	  gfc_conv_ss_startstride (&loop);
! 	  gfc_conv_loop_setup (&loop, &lhs_expr->where);
! 	  lhs_type = gfc_typenode_for_spec (&lhs_expr->ts);
! 	  gfc_trans_create_temp_array (&lhs_se.pre, &lhs_se.post,
! 				       lss_for_tmparray, lhs_type, NULL_TREE,
! 				       false, true, false,
! 				       &lhs_expr->where);
! 	  tmparr_desc = lss_for_tmparray->info->data.array.descriptor;
! 	  gfc_start_scalarized_body (&loop, &body);
! 	  gfc_init_se (&se, NULL);
! 	  gfc_copy_loopinfo_to_se (&se, &loop);
! 	  se.ss = lss_real;
! 	  gfc_conv_expr (&se, lhs_expr);
! 	  gfc_add_block_to_block (&body, &se.pre);
! 
! 	  /* Walk over all indexes of the loop.  */
! 	  for (n = loop.dimen - 1; n > 0; --n)
! 	    {
! 	      tmp = loop.loopvar[n];
! 	      tmp = fold_build2_loc (input_location, MINUS_EXPR,
! 				     gfc_array_index_type, tmp, loop.from[n]);
! 	      tmp = fold_build2_loc (input_location, PLUS_EXPR,
! 				     gfc_array_index_type, tmp, index);
! 
! 	      stride = fold_build2_loc (input_location, MINUS_EXPR,
! 					gfc_array_index_type,
! 					loop.to[n - 1], loop.from[n - 1]);
! 	      stride = fold_build2_loc (input_location, PLUS_EXPR,
! 					gfc_array_index_type,
! 					stride, gfc_index_one_node);
! 
! 	      index = fold_build2_loc (input_location, MULT_EXPR,
! 				       gfc_array_index_type, tmp, stride);
! 	    }
! 
! 	  index = fold_build2_loc (input_location, MINUS_EXPR,
! 				   gfc_array_index_type,
! 				   index, loop.from[0]);
! 
! 	  index = fold_build2_loc (input_location, PLUS_EXPR,
! 				   gfc_array_index_type,
! 				   loop.loopvar[0], index);
! 
! 	  src = build_fold_indirect_ref (gfc_conv_array_data (tmparr_desc));
! 	  src = gfc_build_array_ref (src, index, NULL);
! 	  /* Now create the assignment of lhs_expr = tmp_array.  */
! 	  gfc_add_modify (&body, se.expr, src);
! 	  gfc_add_block_to_block (&body, &se.post);
! 	  lhs_se.expr = gfc_build_addr_expr (NULL_TREE, tmparr_desc);
! 	  gfc_trans_scalarizing_loops (&loop, &body);
! 	  gfc_add_block_to_block (&loop.pre, &loop.post);
! 	  gfc_add_expr_to_block (&lhs_se.post, gfc_finish_block (&loop.pre));
! 	  gfc_free_ss (lss_for_tmparray);
! 	  gfc_free_ss (lss_real);
  	}
      }
  
*************** gfc_conv_intrinsic_ibits (gfc_se * se, g
*** 4693,4698 ****
--- 4783,4804 ----
  }
  
  static void
+ gfc_conv_intrinsic_shape (gfc_se *se, gfc_expr *expr)
+ {
+   gfc_actual_arglist *s, *k;
+   gfc_expr *e;
+ 
+   /* Remove the KIND argument, if present. */
+   s = expr->value.function.actual;
+   k = s->next;
+   e = k->expr;
+   gfc_free_expr (e);
+   k->expr = NULL;
+ 
+   gfc_conv_intrinsic_funcall (se, expr);
+ }
+ 
+ static void
  gfc_conv_intrinsic_shift (gfc_se * se, gfc_expr * expr, bool right_shift,
  			  bool arithmetic)
  {
*************** gfc_conv_intrinsic_size (gfc_se * se, gf
*** 5816,5822 ****
      gfc_add_class_array_ref (actual->expr);
  
    argse.data_not_needed = 1;
!   if (gfc_is_alloc_class_array_function (actual->expr))
      {
        /* For functions that return a class array conv_expr_descriptor is not
  	 able to get the descriptor right.  Therefore this special case.  */
--- 5922,5928 ----
      gfc_add_class_array_ref (actual->expr);
  
    argse.data_not_needed = 1;
!   if (gfc_is_class_array_function (actual->expr))
      {
        /* For functions that return a class array conv_expr_descriptor is not
  	 able to get the descriptor right.  Therefore this special case.  */
*************** gfc_conv_intrinsic_function (gfc_se * se
*** 7753,7758 ****
--- 7859,7868 ----
  	      conv_generic_with_optional_char_arg (se, expr, 1, 3);
  	      break;
  
+ 	    case GFC_ISYM_SHAPE:
+ 	      gfc_conv_intrinsic_shape (se, expr);
+ 	      break;
+ 
  	    default:
  	      gfc_conv_intrinsic_funcall (se, expr);
  	      break;
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-io.c gcc-6.5.0/gcc/fortran/trans-io.c
*** gcc-6.4.0/gcc/fortran/trans-io.c	Sat May 14 19:52:46 2016
--- gcc-6.5.0/gcc/fortran/trans-io.c	Fri Feb 23 19:53:04 2018
*************** set_parameter_value_inquire (stmtblock_t
*** 611,622 ****
        /* Don't evaluate the UNIT number multiple times.  */
        se.expr = gfc_evaluate_now (se.expr, &se.pre);
  
!       /* UNIT numbers should be greater than zero.  */
        i = gfc_validate_kind (BT_INTEGER, 4, false);
        cond1 = build2_loc (input_location, LT_EXPR, boolean_type_node,
  			  se.expr,
! 			  fold_convert (TREE_TYPE (se.expr),
! 			  integer_zero_node));
        /* UNIT numbers should be less than the max.  */
        val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4);
        cond2 = build2_loc (input_location, GT_EXPR, boolean_type_node,
--- 611,622 ----
        /* Don't evaluate the UNIT number multiple times.  */
        se.expr = gfc_evaluate_now (se.expr, &se.pre);
  
!       /* UNIT numbers should be greater than the min.  */
        i = gfc_validate_kind (BT_INTEGER, 4, false);
+       val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].pedantic_min_int, 4);
        cond1 = build2_loc (input_location, LT_EXPR, boolean_type_node,
  			  se.expr,
! 			  fold_convert (TREE_TYPE (se.expr), val));
        /* UNIT numbers should be less than the max.  */
        val = gfc_conv_mpz_to_tree (gfc_integer_kinds[i].huge, 4);
        cond2 = build2_loc (input_location, GT_EXPR, boolean_type_node,
*************** transfer_expr (gfc_se * se, gfc_typespec
*** 2102,2107 ****
--- 2102,2117 ----
      {
        ts->type = BT_INTEGER;
        ts->kind = gfc_index_integer_kind;
+     }
+ 
+   /* gfortran reaches here for "print *, c_loc(xxx)".  */
+   if (ts->type == BT_VOID
+       && code->expr1 && code->expr1->ts.type == BT_VOID
+       && code->expr1->symtree
+       && strcmp (code->expr1->symtree->name, "c_loc") == 0)
+     {
+       ts->type = BT_INTEGER;
+       ts->kind = gfc_index_integer_kind;
      }
  
    kind = ts->kind;
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-openmp.c gcc-6.5.0/gcc/fortran/trans-openmp.c
*** gcc-6.4.0/gcc/fortran/trans-openmp.c	Tue Jan 17 20:29:19 2017
--- gcc-6.5.0/gcc/fortran/trans-openmp.c	Mon Jun 25 16:55:44 2018
*************** gfc_trans_omp_array_reduction_or_udr (tr
*** 1584,1589 ****
--- 1584,1590 ----
        intrinsic_sym.attr.referenced = 1;
        intrinsic_sym.attr.intrinsic = 1;
        intrinsic_sym.attr.function = 1;
+       intrinsic_sym.attr.implicit_type = 1;
        intrinsic_sym.result = &intrinsic_sym;
        intrinsic_sym.declared_at = where;
  
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-stmt.c gcc-6.5.0/gcc/fortran/trans-stmt.c
*** gcc-6.4.0/gcc/fortran/trans-stmt.c	Sun Oct 23 11:55:44 2016
--- gcc-6.5.0/gcc/fortran/trans-stmt.c	Wed May 16 10:41:48 2018
*************** trans_associate_var (gfc_symbol *sym, gf
*** 1541,1547 ****
  
        desc = sym->backend_decl;
        cst_array_ctor = e->expr_type == EXPR_ARRAY
! 	      && gfc_constant_array_constructor_p (e->value.constructor);
  
        /* If association is to an expression, evaluate it and create temporary.
  	 Otherwise, get descriptor of target for pointer assignment.  */
--- 1541,1548 ----
  
        desc = sym->backend_decl;
        cst_array_ctor = e->expr_type == EXPR_ARRAY
! 	      && gfc_constant_array_constructor_p (e->value.constructor)
! 	      && e->ts.type != BT_CHARACTER;
  
        /* If association is to an expression, evaluate it and create temporary.
  	 Otherwise, get descriptor of target for pointer assignment.  */
*************** gfc_trans_allocate (gfc_code * code)
*** 5492,5508 ****
  	    }
  	  gfc_add_modify_loc (input_location, &block, var, tmp);
  
- 	  /* Deallocate any allocatable components after all the allocations
- 	     and assignments of expr3 have been completed.  */
- 	  if (code->expr3->ts.type == BT_DERIVED
- 	      && code->expr3->rank == 0
- 	      && code->expr3->ts.u.derived->attr.alloc_comp)
- 	    {
- 	      tmp = gfc_deallocate_alloc_comp (code->expr3->ts.u.derived,
- 					       var, 0);
- 	      gfc_add_expr_to_block (&post, tmp);
- 	    }
- 
  	  expr3 = var;
  	  if (se.string_length)
  	    /* Evaluate it assuming that it also is complicated like expr3.  */
--- 5493,5498 ----
*************** gfc_trans_allocate (gfc_code * code)
*** 5513,5518 ****
--- 5503,5521 ----
  	  expr3 = se.expr;
  	  expr3_len = se.string_length;
  	}
+ 
+       /* Deallocate any allocatable components after all the allocations
+ 	 and assignments of expr3 have been completed.  */
+       if ((code->expr3->ts.type == BT_DERIVED
+ 	   || code->expr3->ts.type == BT_CLASS)
+ 	  && (code->expr3->expr_type != EXPR_VARIABLE || temp_var_needed)
+ 	  && code->expr3->ts.u.derived->attr.alloc_comp)
+ 	{
+ 	  tmp = gfc_deallocate_alloc_comp (code->expr3->ts.u.derived,
+ 					   expr3, code->expr3->rank);
+ 	  gfc_prepend_expr_to_block (&post, tmp);
+ 	}
+ 
        /* Store what the expr3 is to be used for.  */
        if (e3_is == E3_UNSET)
  	e3_is = expr3 != NULL_TREE ?
*************** gfc_trans_allocate (gfc_code * code)
*** 5691,5700 ****
        if (code->ext.alloc.ts.type != BT_CHARACTER)
  	expr3_esize = TYPE_SIZE_UNIT (
  	      gfc_typenode_for_spec (&code->ext.alloc.ts));
!       else
  	{
  	  gfc_expr *sz;
- 	  gcc_assert (code->ext.alloc.ts.u.cl->length != NULL);
  	  sz = gfc_copy_expr (code->ext.alloc.ts.u.cl->length);
  	  gfc_init_se (&se_sz, NULL);
  	  gfc_conv_expr (&se_sz, sz);
--- 5694,5702 ----
        if (code->ext.alloc.ts.type != BT_CHARACTER)
  	expr3_esize = TYPE_SIZE_UNIT (
  	      gfc_typenode_for_spec (&code->ext.alloc.ts));
!       else if (code->ext.alloc.ts.u.cl->length != NULL)
  	{
  	  gfc_expr *sz;
  	  sz = gfc_copy_expr (code->ext.alloc.ts.u.cl->length);
  	  gfc_init_se (&se_sz, NULL);
  	  gfc_conv_expr (&se_sz, sz);
*************** gfc_trans_allocate (gfc_code * code)
*** 5708,5713 ****
--- 5710,5717 ----
  					 tmp, se_sz.expr);
  	  expr3_esize = gfc_evaluate_now (expr3_esize, &block);
  	}
+       else
+ 	expr3_esize = NULL_TREE;
      }
  
    /* Loop over all objects to allocate.  */
diff -Nrcpad gcc-6.4.0/gcc/fortran/trans-types.c gcc-6.5.0/gcc/fortran/trans-types.c
*** gcc-6.4.0/gcc/fortran/trans-types.c	Mon May  1 09:56:52 2017
--- gcc-6.5.0/gcc/fortran/trans-types.c	Wed May 16 11:42:47 2018
*************** gfc_sym_type (gfc_symbol * sym)
*** 2167,2172 ****
--- 2167,2180 ----
    if (sym->backend_decl && !sym->attr.function)
      return TREE_TYPE (sym->backend_decl);
  
+   if (sym->attr.result
+       && sym->ts.type == BT_CHARACTER
+       && sym->ts.u.cl->backend_decl == NULL_TREE
+       && sym->ns->proc_name
+       && sym->ns->proc_name->ts.u.cl
+       && sym->ns->proc_name->ts.u.cl->backend_decl != NULL_TREE)
+     sym->ts.u.cl->backend_decl = sym->ns->proc_name->ts.u.cl->backend_decl;
+ 
    if (sym->ts.type == BT_CHARACTER
        && ((sym->attr.function && sym->attr.is_bind_c)
  	  || (sym->attr.result
diff -Nrcpad gcc-6.4.0/gcc/function.c gcc-6.5.0/gcc/function.c
*** gcc-6.4.0/gcc/function.c	Fri Jan 20 09:33:15 2017
--- gcc-6.5.0/gcc/function.c	Mon Jun 25 17:38:29 2018
*************** thread_prologue_and_epilogue_insns (void
*** 6068,6080 ****
--- 6068,6086 ----
  
    try_shrink_wrapping (&entry_edge, &bb_flags, prologue_seq);
  
+   rtx_insn *split_prologue_insn = split_prologue_seq;
    if (split_prologue_seq != NULL_RTX)
      {
+       while (split_prologue_insn && !NONDEBUG_INSN_P (split_prologue_insn))
+ 	split_prologue_insn = NEXT_INSN (split_prologue_insn);
        insert_insn_on_edge (split_prologue_seq, orig_entry_edge);
        inserted = true;
      }
+   rtx_insn *prologue_insn = prologue_seq;
    if (prologue_seq != NULL_RTX)
      {
+       while (prologue_insn && !NONDEBUG_INSN_P (prologue_insn))
+ 	prologue_insn = NEXT_INSN (prologue_insn);
        insert_insn_on_edge (prologue_seq, entry_edge);
        inserted = true;
      }
*************** epilogue_done:
*** 6215,6222 ****
--- 6221,6239 ----
        commit_edge_insertions ();
  
        /* Look for basic blocks within the prologue insns.  */
+       if (split_prologue_insn
+ 	  && BLOCK_FOR_INSN (split_prologue_insn) == NULL)
+ 	split_prologue_insn = NULL;
+       if (prologue_insn
+ 	  && BLOCK_FOR_INSN (prologue_insn) == NULL)
+ 	prologue_insn = NULL;
        blocks = sbitmap_alloc (last_basic_block_for_fn (cfun));
        bitmap_clear (blocks);
+       if (split_prologue_insn)
+ 	bitmap_set_bit (blocks,
+ 			BLOCK_FOR_INSN (split_prologue_insn)->index);
+       if (prologue_insn)
+ 	bitmap_set_bit (blocks, BLOCK_FOR_INSN (prologue_insn)->index);
        bitmap_set_bit (blocks, entry_edge->dest->index);
        bitmap_set_bit (blocks, orig_entry_edge->dest->index);
        find_many_sub_basic_blocks (blocks);
*************** match_asm_constraints_1 (rtx_insn *insn,
*** 6718,6725 ****
        /* Only do the transformation for pseudos.  */
        if (! REG_P (output)
  	  || rtx_equal_p (output, input)
! 	  || (GET_MODE (input) != VOIDmode
! 	      && GET_MODE (input) != GET_MODE (output)))
  	continue;
  
        /* We can't do anything if the output is also used as input,
--- 6735,6743 ----
        /* Only do the transformation for pseudos.  */
        if (! REG_P (output)
  	  || rtx_equal_p (output, input)
! 	  || !(REG_P (input) || SUBREG_P (input)
! 	       || MEM_P (input) || CONSTANT_P (input))
! 	  || !general_operand (input, GET_MODE (output)))
  	continue;
  
        /* We can't do anything if the output is also used as input,
diff -Nrcpad gcc-6.4.0/gcc/gcc.c gcc-6.5.0/gcc/gcc.c
*** gcc-6.4.0/gcc/gcc.c	Tue Jul  4 07:15:57 2017
--- gcc-6.5.0/gcc/gcc.c	Mon Jun 25 17:11:36 2018
*************** proper position among the other output f
*** 869,876 ****
  #endif
  
  #ifdef ENABLE_DEFAULT_PIE
! #define NO_PIE_SPEC		"no-pie|static"
! #define PIE_SPEC		NO_PIE_SPEC "|r|shared:;"
  #define NO_FPIE1_SPEC		"fno-pie"
  #define FPIE1_SPEC		NO_FPIE1_SPEC ":;"
  #define NO_FPIE2_SPEC		"fno-PIE"
--- 869,875 ----
  #endif
  
  #ifdef ENABLE_DEFAULT_PIE
! #define PIE_SPEC		"!no-pie"
  #define NO_FPIE1_SPEC		"fno-pie"
  #define FPIE1_SPEC		NO_FPIE1_SPEC ":;"
  #define NO_FPIE2_SPEC		"fno-PIE"
*************** proper position among the other output f
*** 891,897 ****
  #define FPIE_OR_FPIC_SPEC	NO_FPIE_AND_FPIC_SPEC ":;"
  #else
  #define PIE_SPEC		"pie"
- #define NO_PIE_SPEC		PIE_SPEC "|r|shared:;"
  #define FPIE1_SPEC		"fpie"
  #define NO_FPIE1_SPEC		FPIE1_SPEC ":;"
  #define FPIE2_SPEC		"fPIE"
--- 890,895 ----
*************** proper position among the other output f
*** 920,926 ****
  #else
  #define LD_PIE_SPEC ""
  #endif
! #define LINK_PIE_SPEC "%{no-pie:} " "%{" PIE_SPEC ":" LD_PIE_SPEC "} "
  #endif
  
  #ifndef LINK_BUILDID_SPEC
--- 918,924 ----
  #else
  #define LD_PIE_SPEC ""
  #endif
! #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
  #endif
  
  #ifndef LINK_BUILDID_SPEC
*************** proper position among the other output f
*** 999,1006 ****
  #endif
  
  /* -u* was put back because both BSD and SysV seem to support it.  */
! /* %{static:} simply prevents an error message if the target machine
!    doesn't handle -static.  */
  /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
     scripts which exist in user specified directories, or in standard
     directories.  */
--- 997,1006 ----
  #endif
  
  /* -u* was put back because both BSD and SysV seem to support it.  */
! /* %{static|no-pie:} simply prevents an error message:
!    1. If the target machine doesn't handle -static.
!    2. If PIE isn't enabled by default.
!  */
  /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
     scripts which exist in user specified directories, or in standard
     directories.  */
*************** proper position among the other output f
*** 1017,1023 ****
     "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
     "%X %{o*} %{e*} %{N} %{n} %{r}\
      %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
!     %{static:} %{L*} %(mfwrap) %(link_libgcc) " \
      VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
      %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
  	%:include(libgomp.spec)%(link_gomp)}\
--- 1017,1023 ----
     "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
     "%X %{o*} %{e*} %{N} %{n} %{r}\
      %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
!     %{static|no-pie:} %{L*} %(mfwrap) %(link_libgcc) " \
      VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
      %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
  	%:include(libgomp.spec)%(link_gomp)}\
*************** driver_handle_option (struct gcc_options
*** 3702,3708 ****
  		      unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
  		      location_t loc,
  		      const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED,
! 		      diagnostic_context *dc)
  {
    size_t opt_index = decoded->opt_index;
    const char *arg = decoded->arg;
--- 3702,3709 ----
  		      unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
  		      location_t loc,
  		      const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED,
! 		      diagnostic_context *dc,
! 		      void (*) (void))
  {
    size_t opt_index = decoded->opt_index;
    const char *arg = decoded->arg;
*************** try_generate_repro (const char **argv)
*** 6919,6926 ****
  
      /* In final attempt we append compiler options and preprocesssed code to last
         generated .out file with configuration and backtrace.  */
!     char **output = &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1];
!     do_report_bug (new_argv, nargs, stderr_commented, output);
    }
  
  out:
--- 6920,6927 ----
  
      /* In final attempt we append compiler options and preprocesssed code to last
         generated .out file with configuration and backtrace.  */
!     char **err = &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1];
!     do_report_bug (new_argv, nargs, stderr_commented, err);
    }
  
  out:
diff -Nrcpad gcc-6.4.0/gcc/gengtype-lex.c gcc-6.5.0/gcc/gengtype-lex.c
*** gcc-6.4.0/gcc/gengtype-lex.c	Tue Jul  4 07:30:56 2017
--- gcc-6.5.0/gcc/gengtype-lex.c	Fri Oct 26 09:57:35 2018
***************
*** 9,16 ****
  
  #define FLEX_SCANNER
  #define YY_FLEX_MAJOR_VERSION 2
! #define YY_FLEX_MINOR_VERSION 5
! #define YY_FLEX_SUBMINOR_VERSION 37
  #if YY_FLEX_SUBMINOR_VERSION > 0
  #define FLEX_BETA
  #endif
--- 9,16 ----
  
  #define FLEX_SCANNER
  #define YY_FLEX_MAJOR_VERSION 2
! #define YY_FLEX_MINOR_VERSION 6
! #define YY_FLEX_SUBMINOR_VERSION 1
  #if YY_FLEX_SUBMINOR_VERSION > 0
  #define FLEX_BETA
  #endif
*************** typedef unsigned int flex_uint32_t;
*** 89,113 ****
  
  #endif /* ! FLEXINT_H */
  
! #ifdef __cplusplus
! 
! /* The "const" storage-class-modifier is valid. */
! #define YY_USE_CONST
! 
! #else	/* ! __cplusplus */
! 
! /* C99 requires __STDC__ to be defined as 1. */
! #if defined (__STDC__)
! 
! #define YY_USE_CONST
! 
! #endif	/* defined (__STDC__) */
! #endif	/* ! __cplusplus */
! 
! #ifdef YY_USE_CONST
  #define yyconst const
  #else
! #define yyconst
  #endif
  
  /* Returned upon end-of-file. */
--- 89,101 ----
  
  #endif /* ! FLEXINT_H */
  
! /* TODO: this is always defined, so inline it */
  #define yyconst const
+ 
+ #if defined(__GNUC__) && __GNUC__ >= 3
+ #define yynoreturn __attribute__((__noreturn__))
  #else
! #define yynoreturn
  #endif
  
  /* Returned upon end-of-file. */
*************** typedef unsigned int flex_uint32_t;
*** 143,149 ****
--- 131,145 ----
  
  /* Size of default input buffer. */
  #ifndef YY_BUF_SIZE
+ #ifdef __ia64__
+ /* On IA-64, the buffer size is 16k, not 8k.
+  * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+  * Ditto for the __ia64__ case accordingly.
+  */
+ #define YY_BUF_SIZE 32768
+ #else
  #define YY_BUF_SIZE 16384
+ #endif /* __ia64__ */
  #endif
  
  /* The state buf must be large enough to hold one state per character in the main buffer.
*************** typedef struct yy_buffer_state *YY_BUFFE
*** 160,166 ****
  typedef size_t yy_size_t;
  #endif
  
! extern yy_size_t yyleng;
  
  extern FILE *yyin, *yyout;
  
--- 156,162 ----
  typedef size_t yy_size_t;
  #endif
  
! extern int yyleng;
  
  extern FILE *yyin, *yyout;
  
*************** extern FILE *yyin, *yyout;
*** 169,181 ****
  #define EOB_ACT_LAST_MATCH 2
  
      #define YY_LESS_LINENO(n)
      
  /* Return all but the first "n" matched characters back to the input stream. */
  #define yyless(n) \
  	do \
  		{ \
  		/* Undo effects of setting up yytext. */ \
!         int yyless_macro_arg = (n); \
          YY_LESS_LINENO(yyless_macro_arg);\
  		*yy_cp = (yy_hold_char); \
  		YY_RESTORE_YY_MORE_OFFSET \
--- 165,178 ----
  #define EOB_ACT_LAST_MATCH 2
  
      #define YY_LESS_LINENO(n)
+     #define YY_LINENO_REWIND_TO(ptr)
      
  /* Return all but the first "n" matched characters back to the input stream. */
  #define yyless(n) \
  	do \
  		{ \
  		/* Undo effects of setting up yytext. */ \
!         yy_size_t yyless_macro_arg = (n); \
          YY_LESS_LINENO(yyless_macro_arg);\
  		*yy_cp = (yy_hold_char); \
  		YY_RESTORE_YY_MORE_OFFSET \
*************** struct yy_buffer_state
*** 254,260 ****
  /* Stack of input buffers. */
  static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
  static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
! static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
  
  /* We provide macros for accessing buffer states in case in the
   * future we want to put the buffer states in a more general
--- 251,257 ----
  /* Stack of input buffers. */
  static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
  static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
! static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */
  
  /* We provide macros for accessing buffer states in case in the
   * future we want to put the buffer states in a more general
*************** static YY_BUFFER_STATE * yy_buffer_stack
*** 274,283 ****
  /* yy_hold_char holds the character lost when yytext is formed. */
  static char yy_hold_char;
  static int yy_n_chars;		/* number of characters read into yy_ch_buf */
! yy_size_t yyleng;
  
  /* Points to current character in buffer. */
! static char *yy_c_buf_p = (char *) 0;
  static int yy_init = 0;		/* whether we need to initialize */
  static int yy_start = 0;	/* start state number */
  
--- 271,280 ----
  /* yy_hold_char holds the character lost when yytext is formed. */
  static char yy_hold_char;
  static int yy_n_chars;		/* number of characters read into yy_ch_buf */
! int yyleng;
  
  /* Points to current character in buffer. */
! static char *yy_c_buf_p = NULL;
  static int yy_init = 0;		/* whether we need to initialize */
  static int yy_start = 0;	/* start state number */
  
*************** static void yy_init_buffer (YY_BUFFER_ST
*** 302,308 ****
  
  YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size  );
  YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str  );
! YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len  );
  
  void *yyalloc (yy_size_t  );
  void *yyrealloc (void *,yy_size_t  );
--- 299,305 ----
  
  YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size  );
  YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str  );
! YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len  );
  
  void *yyalloc (yy_size_t  );
  void *yyrealloc (void *,yy_size_t  );
*************** void yyfree (void *  );
*** 334,345 ****
  
  /* Begin user sect3 */
  
! #define yywrap() 1
  #define YY_SKIP_YYWRAP
  
  typedef unsigned char YY_CHAR;
  
! FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
  
  typedef int yy_state_type;
  
--- 331,342 ----
  
  /* Begin user sect3 */
  
! #define yywrap() (/*CONSTCOND*/1)
  #define YY_SKIP_YYWRAP
  
  typedef unsigned char YY_CHAR;
  
! FILE *yyin = NULL, *yyout = NULL;
  
  typedef int yy_state_type;
  
*************** extern int yylineno;
*** 348,359 ****
  int yylineno = 1;
  
  extern char *yytext;
  #define yytext_ptr yytext
  
  static yy_state_type yy_get_previous_state (void );
  static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
  static int yy_get_next_buffer (void );
! static void yy_fatal_error (yyconst char msg[]  );
  
  /* Done after the current pattern has been matched and before the
   * corresponding action - sets up yytext.
--- 345,359 ----
  int yylineno = 1;
  
  extern char *yytext;
+ #ifdef yytext_ptr
+ #undef yytext_ptr
+ #endif
  #define yytext_ptr yytext
  
  static yy_state_type yy_get_previous_state (void );
  static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
  static int yy_get_next_buffer (void );
! static void yynoreturn yy_fatal_error (yyconst char* msg  );
  
  /* Done after the current pattern has been matched and before the
   * corresponding action - sets up yytext.
*************** static yyconst flex_int16_t yy_accept[56
*** 439,445 ****
          0,   45,    0,    0,    0,    0,    0,    0,    0,    0
      } ;
  
! static yyconst flex_int32_t yy_ec[256] =
      {   0,
          1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
          2,    2,    2,    1,    1,    1,    1,    1,    1,    1,
--- 439,445 ----
          0,   45,    0,    0,    0,    0,    0,    0,    0,    0
      } ;
  
! static yyconst YY_CHAR yy_ec[256] =
      {   0,
          1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
          2,    2,    2,    1,    1,    1,    1,    1,    1,    1,
*************** static yyconst flex_int32_t yy_ec[256] =
*** 471,477 ****
          1,    1,    1,    1,    1
      } ;
  
! static yyconst flex_int32_t yy_meta[68] =
      {   0,
          1,    2,    3,    1,    1,    1,    1,    1,    1,    4,
          5,    1,    1,    6,    6,    7,    8,    9,    9,    9,
--- 471,477 ----
          1,    1,    1,    1,    1
      } ;
  
! static yyconst YY_CHAR yy_meta[68] =
      {   0,
          1,    2,    3,    1,    1,    1,    1,    1,    1,    4,
          5,    1,    1,    6,    6,    7,    8,    9,    9,    9,
*************** static yyconst flex_int32_t yy_meta[68]
*** 482,488 ****
         11,   11,   11,   11,   11,   11,    1
      } ;
  
! static yyconst flex_int16_t yy_base[608] =
      {   0,
          0,   67,  134,   16,   16,   17,   18,   20, 1232, 2403,
       2403,   19, 1191,   19,   31,   41,   43,   32,   33,   34,
--- 482,488 ----
         11,   11,   11,   11,   11,   11,    1
      } ;
  
! static yyconst flex_uint16_t yy_base[608] =
      {   0,
          0,   67,  134,   16,   16,   17,   18,   20, 1232, 2403,
       2403,   19, 1191,   19,   31,   41,   43,   32,   33,   34,
*************** static yyconst flex_int16_t yy_def[608]
*** 624,630 ****
        560,  560,  560,  560,  560,  560,  560
      } ;
  
! static yyconst flex_int16_t yy_nxt[2471] =
      {   0,
         10,   10,   11,   10,   12,   10,   10,   13,   10,   10,
         10,   10,   14,   10,   10,   10,   10,   56,   59,   59,
--- 624,630 ----
        560,  560,  560,  560,  560,  560,  560
      } ;
  
! static yyconst flex_uint16_t yy_nxt[2471] =
      {   0,
         10,   10,   11,   10,   12,   10,   10,   13,   10,   10,
         10,   10,   14,   10,   10,   10,   10,   56,   59,   59,
*************** int yy_flex_debug = 0;
*** 1188,1194 ****
  #define YY_MORE_ADJ 0
  #define YY_RESTORE_YY_MORE_OFFSET
  char *yytext;
! #line 1 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* -*- indented-text -*- */
  /* Process source files and output type information.
     Copyright (C) 2002-2016 Free Software Foundation, Inc.
--- 1188,1194 ----
  #define YY_MORE_ADJ 0
  #define YY_RESTORE_YY_MORE_OFFSET
  char *yytext;
! #line 1 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* -*- indented-text -*- */
  /* Process source files and output type information.
     Copyright (C) 2002-2016 Free Software Foundation, Inc.
*************** You should have received a copy of the G
*** 1209,1215 ****
  along with GCC; see the file COPYING3.  If not see
  <http://www.gnu.org/licenses/>.  */
  #define YY_NO_INPUT 1
! #line 24 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  #ifdef HOST_GENERATOR_FILE
  #include "config.h"
  #define GENERATOR_FILE 1
--- 1209,1215 ----
  along with GCC; see the file COPYING3.  If not see
  <http://www.gnu.org/licenses/>.  */
  #define YY_NO_INPUT 1
! #line 24 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  #ifdef HOST_GENERATOR_FILE
  #include "config.h"
  #define GENERATOR_FILE 1
*************** void yyset_extra (YY_EXTRA_TYPE user_def
*** 1275,1293 ****
  
  FILE *yyget_in (void );
  
! void yyset_in  (FILE * in_str  );
  
  FILE *yyget_out (void );
  
! void yyset_out  (FILE * out_str  );
  
! yy_size_t yyget_leng (void );
  
  char *yyget_text (void );
  
  int yyget_lineno (void );
  
! void yyset_lineno (int line_number  );
  
  /* Macros after this point can all be overridden by user definitions in
   * section 1.
--- 1275,1293 ----
  
  FILE *yyget_in (void );
  
! void yyset_in  (FILE * _in_str  );
  
  FILE *yyget_out (void );
  
! void yyset_out  (FILE * _out_str  );
  
! 			int yyget_leng (void );
  
  char *yyget_text (void );
  
  int yyget_lineno (void );
  
! void yyset_lineno (int _line_number  );
  
  /* Macros after this point can all be overridden by user definitions in
   * section 1.
*************** extern int yywrap (void );
*** 1301,1306 ****
--- 1301,1310 ----
  #endif
  #endif
  
+ #ifndef YY_NO_UNPUT
+     
+ #endif
+ 
  #ifndef yytext_ptr
  static void yy_flex_strncpy (char *,yyconst char *,int );
  #endif
*************** static int input (void );
*** 1321,1327 ****
--- 1325,1336 ----
  
  /* Amount of stuff to slurp up with each read. */
  #ifndef YY_READ_BUF_SIZE
+ #ifdef __ia64__
+ /* On IA-64, the buffer size is 16k, not 8k */
+ #define YY_READ_BUF_SIZE 16384
+ #else
  #define YY_READ_BUF_SIZE 8192
+ #endif /* __ia64__ */
  #endif
  
  /* Copy whatever the last rule matched to the standard output. */
*************** static int input (void );
*** 1329,1335 ****
  /* This used to be an fputs(), but since the string might contain NUL's,
   * we now use fwrite().
   */
! #define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
  #endif
  
  /* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
--- 1338,1344 ----
  /* This used to be an fputs(), but since the string might contain NUL's,
   * we now use fwrite().
   */
! #define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
  #endif
  
  /* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
*************** static int input (void );
*** 1340,1346 ****
  	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
  		{ \
  		int c = '*'; \
! 		size_t n; \
  		for ( n = 0; n < max_size && \
  			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
  			buf[n] = (char) c; \
--- 1349,1355 ----
  	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
  		{ \
  		int c = '*'; \
! 		int n; \
  		for ( n = 0; n < max_size && \
  			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
  			buf[n] = (char) c; \
*************** static int input (void );
*** 1353,1359 ****
  	else \
  		{ \
  		errno=0; \
! 		while ( (result = (int) fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
  			{ \
  			if( errno != EINTR) \
  				{ \
--- 1362,1368 ----
  	else \
  		{ \
  		errno=0; \
! 		while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \
  			{ \
  			if( errno != EINTR) \
  				{ \
*************** extern int yylex (void);
*** 1408,1414 ****
  
  /* Code executed at the end of each rule. */
  #ifndef YY_BREAK
! #define YY_BREAK break;
  #endif
  
  #define YY_RULE_SETUP \
--- 1417,1423 ----
  
  /* Code executed at the end of each rule. */
  #ifndef YY_BREAK
! #define YY_BREAK /*LINTED*/break;
  #endif
  
  #define YY_RULE_SETUP \
*************** extern int yylex (void);
*** 1421,1443 ****
   */
  YY_DECL
  {
! 	register yy_state_type yy_current_state;
! 	register char *yy_cp, *yy_bp;
! 	register int yy_act;
      
- #line 66 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
- 
-   /* Do this on entry to yylex():  */
-   *yylval = 0;
-   if (lexer_toplevel_done)
-     {
-       BEGIN(INITIAL);
-       lexer_toplevel_done = 0;
-     }
- 
-   /* Things we look for in skipping mode: */
- #line 1439 "gengtype-lex.c"
- 
  	if ( !(yy_init) )
  		{
  		(yy_init) = 1;
--- 1430,1439 ----
   */
  YY_DECL
  {
! 	yy_state_type yy_current_state;
! 	char *yy_cp, *yy_bp;
! 	int yy_act;
      
  	if ( !(yy_init) )
  		{
  		(yy_init) = 1;
*************** YY_DECL
*** 1464,1470 ****
  		yy_load_buffer_state( );
  		}
  
! 	while ( 1 )		/* loops until end-of-file is reached */
  		{
  		yy_cp = (yy_c_buf_p);
  
--- 1460,1480 ----
  		yy_load_buffer_state( );
  		}
  
! 	{
! #line 66 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
! 
!   /* Do this on entry to yylex():  */
!   *yylval = 0;
!   if (lexer_toplevel_done)
!     {
!       BEGIN(INITIAL);
!       lexer_toplevel_done = 0;
!     }
! 
!   /* Things we look for in skipping mode: */
! #line 1475 "gengtype-lex.c"
! 
! 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
  		{
  		yy_cp = (yy_c_buf_p);
  
*************** YY_DECL
*** 1481,1487 ****
  yy_match:
  		do
  			{
! 			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
  			if ( yy_accept[yy_current_state] )
  				{
  				(yy_last_accepting_state) = yy_current_state;
--- 1491,1497 ----
  yy_match:
  		do
  			{
! 			YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ;
  			if ( yy_accept[yy_current_state] )
  				{
  				(yy_last_accepting_state) = yy_current_state;
*************** do_action:	/* This label is used only to
*** 1519,1528 ****
  case 1:
  /* rule 1 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 77 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return TYPEDEF;
--- 1529,1539 ----
  case 1:
  /* rule 1 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 77 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return TYPEDEF;
*************** YY_RULE_SETUP
*** 1531,1540 ****
  case 2:
  /* rule 2 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 81 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return STRUCT;
--- 1542,1552 ----
  case 2:
  /* rule 2 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 81 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return STRUCT;
*************** YY_RULE_SETUP
*** 1543,1552 ****
  case 3:
  /* rule 3 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 85 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return UNION;
--- 1555,1565 ----
  case 3:
  /* rule 3 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 85 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return UNION;
*************** YY_RULE_SETUP
*** 1555,1564 ****
  case 4:
  /* rule 4 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 89 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return STRUCT;
--- 1568,1578 ----
  case 4:
  /* rule 4 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 89 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return STRUCT;
*************** YY_RULE_SETUP
*** 1567,1576 ****
  case 5:
  /* rule 5 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 93 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return EXTERN;
--- 1581,1591 ----
  case 5:
  /* rule 5 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 93 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return EXTERN;
*************** YY_RULE_SETUP
*** 1579,1588 ****
  case 6:
  /* rule 6 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 97 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return STATIC;
--- 1594,1604 ----
  case 6:
  /* rule 6 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 97 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    BEGIN(in_struct);
    return STATIC;
*************** YY_RULE_SETUP
*** 1593,1644 ****
  
  case 7:
  YY_RULE_SETUP
! #line 105 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { BEGIN(in_struct_comment); }
  	YY_BREAK
  case 8:
  /* rule 8 can match eol */
  YY_RULE_SETUP
! #line 106 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 9:
  /* rule 9 can match eol */
  YY_RULE_SETUP
! #line 108 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { update_lineno (yytext, yyleng); }
  	YY_BREAK
  case 10:
  /* rule 10 can match eol */
  YY_RULE_SETUP
! #line 109 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 11:
  /* rule 11 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 5;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 111 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* don't care */
  	YY_BREAK
  case 12:
  /* rule 12 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
! #line 113 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 13:
  /* rule 13 can match eol */
! #line 114 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 14:
  /* rule 14 can match eol */
! #line 115 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 15:
  /* rule 15 can match eol */
  YY_RULE_SETUP
! #line 115 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
      *yylval = XDUPVAR (const char, yytext, yyleng, yyleng + 1);
      return IGNORABLE_CXX_KEYWORD;
--- 1609,1662 ----
  
  case 7:
  YY_RULE_SETUP
! #line 105 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { BEGIN(in_struct_comment); }
  	YY_BREAK
  case 8:
  /* rule 8 can match eol */
  YY_RULE_SETUP
! #line 106 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 9:
  /* rule 9 can match eol */
  YY_RULE_SETUP
! #line 108 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { update_lineno (yytext, yyleng); }
  	YY_BREAK
  case 10:
  /* rule 10 can match eol */
  YY_RULE_SETUP
! #line 109 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 11:
  /* rule 11 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 5);
  (yy_c_buf_p) = yy_cp = yy_bp + 5;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 111 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* don't care */
  	YY_BREAK
  case 12:
  /* rule 12 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
! #line 113 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 13:
  /* rule 13 can match eol */
! #line 114 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 14:
  /* rule 14 can match eol */
! #line 115 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 15:
  /* rule 15 can match eol */
  YY_RULE_SETUP
! #line 115 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
      *yylval = XDUPVAR (const char, yytext, yyleng, yyleng + 1);
      return IGNORABLE_CXX_KEYWORD;
*************** YY_RULE_SETUP
*** 1647,1745 ****
  case 16:
  /* rule 16 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 3;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 119 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return GTY_TOKEN; }
  	YY_BREAK
  case 17:
  /* rule 17 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 5;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 120 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return UNION; }
  	YY_BREAK
  case 18:
  /* rule 18 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 6;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 121 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return STRUCT; }
  	YY_BREAK
  case 19:
  /* rule 19 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 5;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 122 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return STRUCT; }
  	YY_BREAK
  case 20:
  /* rule 20 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 7;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 123 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return TYPEDEF; }
  	YY_BREAK
  case 21:
  /* rule 21 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 4;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 124 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return ENUM; }
  	YY_BREAK
  case 22:
  /* rule 22 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 9;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 125 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return PTR_ALIAS; }
  	YY_BREAK
  case 23:
  /* rule 23 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 10;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 126 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return NESTED_PTR; }
  	YY_BREAK
  case 24:
  /* rule 24 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 4;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 127 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return USER_GTY; }
  	YY_BREAK
  case 25:
  YY_RULE_SETUP
! #line 128 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return NUM; }
  	YY_BREAK
  case 26:
  /* rule 26 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
! #line 131 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 27:
  /* rule 27 can match eol */
  YY_RULE_SETUP
! #line 131 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    size_t len;
  
--- 1665,1773 ----
  case 16:
  /* rule 16 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 3);
  (yy_c_buf_p) = yy_cp = yy_bp + 3;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 119 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return GTY_TOKEN; }
  	YY_BREAK
  case 17:
  /* rule 17 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 5);
  (yy_c_buf_p) = yy_cp = yy_bp + 5;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 120 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return UNION; }
  	YY_BREAK
  case 18:
  /* rule 18 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 6);
  (yy_c_buf_p) = yy_cp = yy_bp + 6;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 121 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return STRUCT; }
  	YY_BREAK
  case 19:
  /* rule 19 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 5);
  (yy_c_buf_p) = yy_cp = yy_bp + 5;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 122 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return STRUCT; }
  	YY_BREAK
  case 20:
  /* rule 20 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 7);
  (yy_c_buf_p) = yy_cp = yy_bp + 7;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 123 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return TYPEDEF; }
  	YY_BREAK
  case 21:
  /* rule 21 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 4);
  (yy_c_buf_p) = yy_cp = yy_bp + 4;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 124 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return ENUM; }
  	YY_BREAK
  case 22:
  /* rule 22 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 9);
  (yy_c_buf_p) = yy_cp = yy_bp + 9;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 125 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return PTR_ALIAS; }
  	YY_BREAK
  case 23:
  /* rule 23 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 10);
  (yy_c_buf_p) = yy_cp = yy_bp + 10;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 126 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return NESTED_PTR; }
  	YY_BREAK
  case 24:
  /* rule 24 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 4);
  (yy_c_buf_p) = yy_cp = yy_bp + 4;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 127 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return USER_GTY; }
  	YY_BREAK
  case 25:
  YY_RULE_SETUP
! #line 128 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return NUM; }
  	YY_BREAK
  case 26:
  /* rule 26 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
! #line 131 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 27:
  /* rule 27 can match eol */
  YY_RULE_SETUP
! #line 131 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    size_t len;
  
*************** YY_RULE_SETUP
*** 1754,1763 ****
  case 28:
  /* rule 28 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 142 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext, yyleng, yyleng+1);
    return ID;
--- 1782,1792 ----
  case 28:
  /* rule 28 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_cp - 1);
  (yy_c_buf_p) = yy_cp -= 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 142 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext, yyleng, yyleng+1);
    return ID;
*************** YY_RULE_SETUP
*** 1766,1772 ****
  case 29:
  /* rule 29 can match eol */
  YY_RULE_SETUP
! #line 147 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng-1);
    return STRING;
--- 1795,1801 ----
  case 29:
  /* rule 29 can match eol */
  YY_RULE_SETUP
! #line 147 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng-1);
    return STRING;
*************** YY_RULE_SETUP
*** 1776,1782 ****
  case 30:
  /* rule 30 can match eol */
  YY_RULE_SETUP
! #line 152 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng-1);
    return ARRAY;
--- 1805,1811 ----
  case 30:
  /* rule 30 can match eol */
  YY_RULE_SETUP
! #line 152 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng-1);
    return ARRAY;
*************** YY_RULE_SETUP
*** 1785,1791 ****
  case 31:
  /* rule 31 can match eol */
  YY_RULE_SETUP
! #line 156 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng);
    return CHAR;
--- 1814,1820 ----
  case 31:
  /* rule 31 can match eol */
  YY_RULE_SETUP
! #line 156 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    *yylval = XDUPVAR (const char, yytext+1, yyleng-2, yyleng);
    return CHAR;
*************** YY_RULE_SETUP
*** 1793,1816 ****
  	YY_BREAK
  case 32:
  YY_RULE_SETUP
! #line 161 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return ELLIPSIS; }
  	YY_BREAK
  case 33:
  YY_RULE_SETUP
! #line 162 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { return yytext[0]; }
  	YY_BREAK
  /* ignore pp-directives */
  case 34:
  /* rule 34 can match eol */
  YY_RULE_SETUP
! #line 165 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {lexer_line.line++;}
  	YY_BREAK
  case 35:
  YY_RULE_SETUP
! #line 167 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    error_at_line (&lexer_line, "unexpected character `%s'", yytext);
  }
--- 1822,1845 ----
  	YY_BREAK
  case 32:
  YY_RULE_SETUP
! #line 161 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return ELLIPSIS; }
  	YY_BREAK
  case 33:
  YY_RULE_SETUP
! #line 162 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { return yytext[0]; }
  	YY_BREAK
  /* ignore pp-directives */
  case 34:
  /* rule 34 can match eol */
  YY_RULE_SETUP
! #line 165 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {lexer_line.line++;}
  	YY_BREAK
  case 35:
  YY_RULE_SETUP
! #line 167 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    error_at_line (&lexer_line, "unexpected character `%s'", yytext);
  }
*************** YY_RULE_SETUP
*** 1818,1903 ****
  
  case 36:
  YY_RULE_SETUP
! #line 172 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { BEGIN(in_comment); }
  	YY_BREAK
  case 37:
  /* rule 37 can match eol */
  YY_RULE_SETUP
! #line 173 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 38:
  /* rule 38 can match eol */
  YY_RULE_SETUP
! #line 174 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 39:
! #line 176 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 40:
  /* rule 40 can match eol */
! #line 177 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 41:
  /* rule 41 can match eol */
  YY_RULE_SETUP
! #line 177 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  case 42:
  /* rule 42 can match eol */
  YY_RULE_SETUP
! #line 178 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { update_lineno (yytext, yyleng); }
  	YY_BREAK
  case 43:
  /* rule 43 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 179 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  
  case 44:
  /* rule 44 can match eol */
  YY_RULE_SETUP
! #line 182 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 45:
! #line 184 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 46:
  YY_RULE_SETUP
! #line 184 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  case 47:
  /* rule 47 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
  (yy_c_buf_p) = yy_cp = yy_bp + 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 185 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  
  case 48:
  YY_RULE_SETUP
! #line 188 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { BEGIN(INITIAL); } 
  	YY_BREAK
  case 49:
  YY_RULE_SETUP
! #line 189 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  { BEGIN(in_struct); }
  	YY_BREAK
  case 50:
! #line 192 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  case 51:
  YY_RULE_SETUP
! #line 192 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  {
    error_at_line (&lexer_line, 
  		 "unterminated comment or string; unexpected EOF");
--- 1847,1934 ----
  
  case 36:
  YY_RULE_SETUP
! #line 172 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { BEGIN(in_comment); }
  	YY_BREAK
  case 37:
  /* rule 37 can match eol */
  YY_RULE_SETUP
! #line 173 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 38:
  /* rule 38 can match eol */
  YY_RULE_SETUP
! #line 174 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 39:
! #line 176 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 40:
  /* rule 40 can match eol */
! #line 177 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 41:
  /* rule 41 can match eol */
  YY_RULE_SETUP
! #line 177 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  case 42:
  /* rule 42 can match eol */
  YY_RULE_SETUP
! #line 178 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { update_lineno (yytext, yyleng); }
  	YY_BREAK
  case 43:
  /* rule 43 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 1);
  (yy_c_buf_p) = yy_cp = yy_bp + 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 179 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  
  case 44:
  /* rule 44 can match eol */
  YY_RULE_SETUP
! #line 182 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { lexer_line.line++; }
  	YY_BREAK
  case 45:
! #line 184 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 46:
  YY_RULE_SETUP
! #line 184 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  case 47:
  /* rule 47 can match eol */
  *yy_cp = (yy_hold_char); /* undo effects of setting up yytext */
+ YY_LINENO_REWIND_TO(yy_bp + 1);
  (yy_c_buf_p) = yy_cp = yy_bp + 1;
  YY_DO_BEFORE_ACTION; /* set up yytext again */
  YY_RULE_SETUP
! #line 185 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  
  case 48:
  YY_RULE_SETUP
! #line 188 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { BEGIN(INITIAL); } 
  	YY_BREAK
  case 49:
  YY_RULE_SETUP
! #line 189 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  { BEGIN(in_struct); }
  	YY_BREAK
  case 50:
! #line 192 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  case 51:
  YY_RULE_SETUP
! #line 192 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  {
    error_at_line (&lexer_line, 
  		 "unterminated comment or string; unexpected EOF");
*************** YY_RULE_SETUP
*** 1906,1920 ****
  case 52:
  /* rule 52 can match eol */
  YY_RULE_SETUP
! #line 197 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  case 53:
  YY_RULE_SETUP
! #line 199 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  YY_FATAL_ERROR( "flex scanner jammed" );
  	YY_BREAK
! #line 1917 "gengtype-lex.c"
  case YY_STATE_EOF(INITIAL):
  case YY_STATE_EOF(in_struct):
  case YY_STATE_EOF(in_struct_comment):
--- 1937,1951 ----
  case 52:
  /* rule 52 can match eol */
  YY_RULE_SETUP
! #line 197 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  /* do nothing */
  	YY_BREAK
  case 53:
  YY_RULE_SETUP
! #line 199 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  YY_FATAL_ERROR( "flex scanner jammed" );
  	YY_BREAK
! #line 1948 "gengtype-lex.c"
  case YY_STATE_EOF(INITIAL):
  case YY_STATE_EOF(in_struct):
  case YY_STATE_EOF(in_struct_comment):
*************** case YY_STATE_EOF(in_comment):
*** 2049,2054 ****
--- 2080,2086 ----
  			"fatal flex scanner internal error--no action found" );
  	} /* end of action switch */
  		} /* end of scanning one token */
+ 	} /* end of user's declarations */
  } /* end of yylex */
  
  /* yy_get_next_buffer - try to read in a new buffer
*************** case YY_STATE_EOF(in_comment):
*** 2060,2068 ****
   */
  static int yy_get_next_buffer (void)
  {
!     	register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
! 	register char *source = (yytext_ptr);
! 	register int number_to_move, i;
  	int ret_val;
  
  	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
--- 2092,2100 ----
   */
  static int yy_get_next_buffer (void)
  {
!     	char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
! 	char *source = (yytext_ptr);
! 	yy_size_t number_to_move, i;
  	int ret_val;
  
  	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
*************** static int yy_get_next_buffer (void)
*** 2091,2097 ****
  	/* Try to read more data. */
  
  	/* First move last chars to start of buffer. */
! 	number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
  
  	for ( i = 0; i < number_to_move; ++i )
  		*(dest++) = *(source++);
--- 2123,2129 ----
  	/* Try to read more data. */
  
  	/* First move last chars to start of buffer. */
! 	number_to_move = (yy_size_t) ((yy_c_buf_p) - (yytext_ptr)) - 1;
  
  	for ( i = 0; i < number_to_move; ++i )
  		*(dest++) = *(source++);
*************** static int yy_get_next_buffer (void)
*** 2118,2124 ****
  
  			if ( b->yy_is_our_buffer )
  				{
! 				yy_size_t new_size = b->yy_buf_size * 2;
  
  				if ( new_size <= 0 )
  					b->yy_buf_size += b->yy_buf_size / 8;
--- 2150,2156 ----
  
  			if ( b->yy_is_our_buffer )
  				{
! 				int new_size = b->yy_buf_size * 2;
  
  				if ( new_size <= 0 )
  					b->yy_buf_size += b->yy_buf_size / 8;
*************** static int yy_get_next_buffer (void)
*** 2127,2137 ****
  
  				b->yy_ch_buf = (char *)
  					/* Include room in for 2 EOB chars. */
! 					yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
  				}
  			else
  				/* Can't grow it, we don't own it. */
! 				b->yy_ch_buf = 0;
  
  			if ( ! b->yy_ch_buf )
  				YY_FATAL_ERROR(
--- 2159,2169 ----
  
  				b->yy_ch_buf = (char *)
  					/* Include room in for 2 EOB chars. */
! 					yyrealloc((void *) b->yy_ch_buf,(yy_size_t) (b->yy_buf_size + 2)  );
  				}
  			else
  				/* Can't grow it, we don't own it. */
! 				b->yy_ch_buf = NULL;
  
  			if ( ! b->yy_ch_buf )
  				YY_FATAL_ERROR(
*************** static int yy_get_next_buffer (void)
*** 2139,2145 ****
  
  			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
  
! 			num_to_read = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
  						number_to_move - 1;
  
  			}
--- 2171,2177 ----
  
  			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
  
! 			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
  						number_to_move - 1;
  
  			}
*************** static int yy_get_next_buffer (void)
*** 2176,2182 ****
  	if ((int) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
  		/* Extend the array by 50%, plus the number we really need. */
  		int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
! 		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
  		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
  			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
  	}
--- 2208,2214 ----
  	if ((int) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
  		/* Extend the array by 50%, plus the number we really need. */
  		int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
! 		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,(yy_size_t) new_size  );
  		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
  			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
  	}
*************** static int yy_get_next_buffer (void)
*** 2194,2208 ****
  
      static yy_state_type yy_get_previous_state (void)
  {
! 	register yy_state_type yy_current_state;
! 	register char *yy_cp;
      
  	yy_current_state = (yy_start);
  	yy_current_state += YY_AT_BOL();
  
  	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
  		{
! 		register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
  		if ( yy_accept[yy_current_state] )
  			{
  			(yy_last_accepting_state) = yy_current_state;
--- 2226,2240 ----
  
      static yy_state_type yy_get_previous_state (void)
  {
! 	yy_state_type yy_current_state;
! 	char *yy_cp;
      
  	yy_current_state = (yy_start);
  	yy_current_state += YY_AT_BOL();
  
  	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
  		{
! 		YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
  		if ( yy_accept[yy_current_state] )
  			{
  			(yy_last_accepting_state) = yy_current_state;
*************** static int yy_get_next_buffer (void)
*** 2227,2236 ****
   */
      static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
  {
! 	register int yy_is_jam;
!     	register char *yy_cp = (yy_c_buf_p);
  
! 	register YY_CHAR yy_c = 1;
  	if ( yy_accept[yy_current_state] )
  		{
  		(yy_last_accepting_state) = yy_current_state;
--- 2259,2268 ----
   */
      static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
  {
! 	int yy_is_jam;
!     	char *yy_cp = (yy_c_buf_p);
  
! 	YY_CHAR yy_c = 1;
  	if ( yy_accept[yy_current_state] )
  		{
  		(yy_last_accepting_state) = yy_current_state;
*************** static int yy_get_next_buffer (void)
*** 2248,2253 ****
--- 2280,2289 ----
  		return yy_is_jam ? 0 : yy_current_state;
  }
  
+ #ifndef YY_NO_UNPUT
+ 
+ #endif
+ 
  #ifndef YY_NO_INPUT
  #ifdef __cplusplus
      static int yyinput (void)
*************** static int yy_get_next_buffer (void)
*** 2272,2278 ****
  
  		else
  			{ /* need more input */
! 			yy_size_t offset = (yy_c_buf_p) - (yytext_ptr);
  			++(yy_c_buf_p);
  
  			switch ( yy_get_next_buffer(  ) )
--- 2308,2314 ----
  
  		else
  			{ /* need more input */
! 			int offset = (yy_c_buf_p) - (yytext_ptr);
  			++(yy_c_buf_p);
  
  			switch ( yy_get_next_buffer(  ) )
*************** static int yy_get_next_buffer (void)
*** 2296,2302 ****
  				case EOB_ACT_END_OF_FILE:
  					{
  					if ( yywrap( ) )
! 						return EOF;
  
  					if ( ! (yy_did_buffer_switch_on_eof) )
  						YY_NEW_FILE;
--- 2332,2338 ----
  				case EOB_ACT_END_OF_FILE:
  					{
  					if ( yywrap( ) )
! 						return 0;
  
  					if ( ! (yy_did_buffer_switch_on_eof) )
  						YY_NEW_FILE;
*************** static void yy_load_buffer_state  (void)
*** 2404,2410 ****
  	/* yy_ch_buf has to be 2 characters longer than the size given because
  	 * we need to put in 2 end-of-buffer characters.
  	 */
! 	b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2  );
  	if ( ! b->yy_ch_buf )
  		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
  
--- 2440,2446 ----
  	/* yy_ch_buf has to be 2 characters longer than the size given because
  	 * we need to put in 2 end-of-buffer characters.
  	 */
! 	b->yy_ch_buf = (char *) yyalloc((yy_size_t) (b->yy_buf_size + 2)  );
  	if ( ! b->yy_ch_buf )
  		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
  
*************** void yypop_buffer_state (void)
*** 2546,2552 ****
   */
  static void yyensure_buffer_stack (void)
  {
! 	yy_size_t num_to_alloc;
      
  	if (!(yy_buffer_stack)) {
  
--- 2582,2588 ----
   */
  static void yyensure_buffer_stack (void)
  {
! 	int num_to_alloc;
      
  	if (!(yy_buffer_stack)) {
  
*************** static void yyensure_buffer_stack (void)
*** 2554,2560 ****
  		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
  		 * immediate realloc on the next call.
           */
! 		num_to_alloc = 1;
  		(yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
  								(num_to_alloc * sizeof(struct yy_buffer_state*)
  								);
--- 2590,2596 ----
  		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
  		 * immediate realloc on the next call.
           */
!       num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */
  		(yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
  								(num_to_alloc * sizeof(struct yy_buffer_state*)
  								);
*************** static void yyensure_buffer_stack (void)
*** 2571,2577 ****
  	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
  
  		/* Increase the buffer to prepare for a possible push. */
! 		int grow_size = 8 /* arbitrary grow size */;
  
  		num_to_alloc = (yy_buffer_stack_max) + grow_size;
  		(yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
--- 2607,2613 ----
  	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
  
  		/* Increase the buffer to prepare for a possible push. */
! 		yy_size_t grow_size = 8 /* arbitrary grow size */;
  
  		num_to_alloc = (yy_buffer_stack_max) + grow_size;
  		(yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
*************** YY_BUFFER_STATE yy_scan_buffer  (char *
*** 2601,2616 ****
  	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
  	     base[size-1] != YY_END_OF_BUFFER_CHAR )
  		/* They forgot to leave room for the EOB's. */
! 		return 0;
  
  	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
  	if ( ! b )
  		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
  
! 	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
  	b->yy_buf_pos = b->yy_ch_buf = base;
  	b->yy_is_our_buffer = 0;
! 	b->yy_input_file = 0;
  	b->yy_n_chars = b->yy_buf_size;
  	b->yy_is_interactive = 0;
  	b->yy_at_bol = 1;
--- 2637,2652 ----
  	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
  	     base[size-1] != YY_END_OF_BUFFER_CHAR )
  		/* They forgot to leave room for the EOB's. */
! 		return NULL;
  
  	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
  	if ( ! b )
  		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
  
! 	b->yy_buf_size = (int) (size - 2);	/* "- 2" to take care of EOB's */
  	b->yy_buf_pos = b->yy_ch_buf = base;
  	b->yy_is_our_buffer = 0;
! 	b->yy_input_file = NULL;
  	b->yy_n_chars = b->yy_buf_size;
  	b->yy_is_interactive = 0;
  	b->yy_at_bol = 1;
*************** YY_BUFFER_STATE yy_scan_string (yyconst
*** 2643,2654 ****
   * 
   * @return the newly allocated buffer state object.
   */
! YY_BUFFER_STATE yy_scan_bytes  (yyconst char * yybytes, yy_size_t  _yybytes_len )
  {
  	YY_BUFFER_STATE b;
  	char *buf;
  	yy_size_t n;
! 	int i;
      
  	/* Get memory for full buffer, including space for trailing EOB's. */
  	n = (yy_size_t) _yybytes_len + 2;
--- 2679,2690 ----
   * 
   * @return the newly allocated buffer state object.
   */
! YY_BUFFER_STATE yy_scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
  {
  	YY_BUFFER_STATE b;
  	char *buf;
  	yy_size_t n;
! 	yy_size_t i;
      
  	/* Get memory for full buffer, including space for trailing EOB's. */
  	n = (yy_size_t) _yybytes_len + 2;
*************** YY_BUFFER_STATE yy_scan_bytes  (yyconst
*** 2677,2685 ****
  #define YY_EXIT_FAILURE 2
  #endif
  
! static void yy_fatal_error (yyconst char* msg )
  {
!     	(void) fprintf( stderr, "%s\n", msg );
  	exit( YY_EXIT_FAILURE );
  }
  
--- 2713,2721 ----
  #define YY_EXIT_FAILURE 2
  #endif
  
! static void yynoreturn yy_fatal_error (yyconst char* msg )
  {
! 			(void) fprintf( stderr, "%s\n", msg );
  	exit( YY_EXIT_FAILURE );
  }
  
*************** static void yy_fatal_error (yyconst char
*** 2690,2696 ****
  	do \
  		{ \
  		/* Undo effects of setting up yytext. */ \
!         int yyless_macro_arg = (n); \
          YY_LESS_LINENO(yyless_macro_arg);\
  		yytext[yyleng] = (yy_hold_char); \
  		(yy_c_buf_p) = yytext + yyless_macro_arg; \
--- 2726,2732 ----
  	do \
  		{ \
  		/* Undo effects of setting up yytext. */ \
!         yy_size_t yyless_macro_arg = (n); \
          YY_LESS_LINENO(yyless_macro_arg);\
  		yytext[yyleng] = (yy_hold_char); \
  		(yy_c_buf_p) = yytext + yyless_macro_arg; \
*************** FILE *yyget_out  (void)
*** 2730,2736 ****
  /** Get the length of the current token.
   * 
   */
! yy_size_t yyget_leng  (void)
  {
          return yyleng;
  }
--- 2766,2772 ----
  /** Get the length of the current token.
   * 
   */
! int yyget_leng  (void)
  {
          return yyleng;
  }
*************** char *yyget_text  (void)
*** 2745,2773 ****
  }
  
  /** Set the current line number.
!  * @param line_number
   * 
   */
! void yyset_lineno (int  line_number )
  {
      
!     yylineno = line_number;
  }
  
  /** Set the input stream. This does not discard the current
   * input buffer.
!  * @param in_str A readable stream.
   * 
   * @see yy_switch_to_buffer
   */
! void yyset_in (FILE *  in_str )
  {
!         yyin = in_str ;
  }
  
! void yyset_out (FILE *  out_str )
  {
!         yyout = out_str ;
  }
  
  int yyget_debug  (void)
--- 2781,2809 ----
  }
  
  /** Set the current line number.
!  * @param _line_number line number
   * 
   */
! void yyset_lineno (int  _line_number )
  {
      
!     yylineno = _line_number;
  }
  
  /** Set the input stream. This does not discard the current
   * input buffer.
!  * @param _in_str A readable stream.
   * 
   * @see yy_switch_to_buffer
   */
! void yyset_in (FILE *  _in_str )
  {
!         yyin = _in_str ;
  }
  
! void yyset_out (FILE *  _out_str )
  {
!         yyout = _out_str ;
  }
  
  int yyget_debug  (void)
*************** int yyget_debug  (void)
*** 2775,2783 ****
          return yy_flex_debug;
  }
  
! void yyset_debug (int  bdebug )
  {
!         yy_flex_debug = bdebug ;
  }
  
  static int yy_init_globals (void)
--- 2811,2819 ----
          return yy_flex_debug;
  }
  
! void yyset_debug (int  _bdebug )
  {
!         yy_flex_debug = _bdebug ;
  }
  
  static int yy_init_globals (void)
*************** static int yy_init_globals (void)
*** 2786,2795 ****
       * This function is called from yylex_destroy(), so don't allocate here.
       */
  
!     (yy_buffer_stack) = 0;
      (yy_buffer_stack_top) = 0;
      (yy_buffer_stack_max) = 0;
!     (yy_c_buf_p) = (char *) 0;
      (yy_init) = 0;
      (yy_start) = 0;
  
--- 2822,2831 ----
       * This function is called from yylex_destroy(), so don't allocate here.
       */
  
!     (yy_buffer_stack) = NULL;
      (yy_buffer_stack_top) = 0;
      (yy_buffer_stack_max) = 0;
!     (yy_c_buf_p) = NULL;
      (yy_init) = 0;
      (yy_start) = 0;
  
*************** static int yy_init_globals (void)
*** 2798,2805 ****
      yyin = stdin;
      yyout = stdout;
  #else
!     yyin = (FILE *) 0;
!     yyout = (FILE *) 0;
  #endif
  
      /* For future reference: Set errno on error, since we are called by
--- 2834,2841 ----
      yyin = stdin;
      yyout = stdout;
  #else
!     yyin = NULL;
!     yyout = NULL;
  #endif
  
      /* For future reference: Set errno on error, since we are called by
*************** int yylex_destroy  (void)
*** 2837,2843 ****
  #ifndef yytext_ptr
  static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
  {
! 	register int i;
  	for ( i = 0; i < n; ++i )
  		s1[i] = s2[i];
  }
--- 2873,2880 ----
  #ifndef yytext_ptr
  static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
  {
! 		
! 	int i;
  	for ( i = 0; i < n; ++i )
  		s1[i] = s2[i];
  }
*************** static void yy_flex_strncpy (char* s1, y
*** 2846,2852 ****
  #ifdef YY_NEED_STRLEN
  static int yy_flex_strlen (yyconst char * s )
  {
! 	register int n;
  	for ( n = 0; s[n]; ++n )
  		;
  
--- 2883,2889 ----
  #ifdef YY_NEED_STRLEN
  static int yy_flex_strlen (yyconst char * s )
  {
! 	int n;
  	for ( n = 0; s[n]; ++n )
  		;
  
*************** static int yy_flex_strlen (yyconst char
*** 2856,2866 ****
  
  void *yyalloc (yy_size_t  size )
  {
! 	return (void *) malloc( size );
  }
  
  void *yyrealloc  (void * ptr, yy_size_t  size )
  {
  	/* The cast to (char *) in the following accommodates both
  	 * implementations that use char* generic pointers, and those
  	 * that use void* generic pointers.  It works with the latter
--- 2893,2904 ----
  
  void *yyalloc (yy_size_t  size )
  {
! 			return malloc(size);
  }
  
  void *yyrealloc  (void * ptr, yy_size_t  size )
  {
+ 		
  	/* The cast to (char *) in the following accommodates both
  	 * implementations that use char* generic pointers, and those
  	 * that use void* generic pointers.  It works with the latter
*************** void *yyrealloc  (void * ptr, yy_size_t
*** 2868,2884 ****
  	 * any pointer type to void*, and deal with argument conversions
  	 * as though doing an assignment.
  	 */
! 	return (void *) realloc( (char *) ptr, size );
  }
  
  void yyfree (void * ptr )
  {
! 	free( (char *) ptr );	/* see yyrealloc() for (char *) cast */
  }
  
  #define YYTABLES_NAME "yytables"
  
! #line 199 "/space/rguenther/gcc-6.4.0/gcc-6.4.0/gcc/gengtype-lex.l"
  
  
  
--- 2906,2922 ----
  	 * any pointer type to void*, and deal with argument conversions
  	 * as though doing an assignment.
  	 */
! 	return realloc(ptr, size);
  }
  
  void yyfree (void * ptr )
  {
! 			free( (char *) ptr );	/* see yyrealloc() for (char *) cast */
  }
  
  #define YYTABLES_NAME "yytables"
  
! #line 199 "/d/gcc-6.5.0/gcc-6.5.0/gcc/gengtype-lex.l"
  
  
  
diff -Nrcpad gcc-6.4.0/gcc/genmatch.c gcc-6.5.0/gcc/genmatch.c
*** gcc-6.4.0/gcc/genmatch.c	Fri May  5 21:52:00 2017
--- gcc-6.5.0/gcc/genmatch.c	Thu Jun 21 09:50:36 2018
*************** capture_info::walk_match (operand *o, un
*** 1930,1936 ****
        if (c->what
  	  && (e = dyn_cast <expr *> (c->what)))
  	{
! 	  info[where].expr_p = true;
  	  info[where].force_single_use |= e->force_single_use;
  	}
      }
--- 1930,1940 ----
        if (c->what
  	  && (e = dyn_cast <expr *> (c->what)))
  	{
! 	  /* Zero-operand expression captures like ADDR_EXPR@0 are
! 	     similar as predicates -- if they are not mentioned in
! 	     the result we have to force them to have no side-effects.  */
! 	  if (e->ops.length () != 0)
! 	    info[where].expr_p = true;
  	  info[where].force_single_use |= e->force_single_use;
  	}
      }
diff -Nrcpad gcc-6.4.0/gcc/ggc-page.c gcc-6.5.0/gcc/ggc-page.c
*** gcc-6.4.0/gcc/ggc-page.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/ggc-page.c	Fri Dec 15 11:32:27 2017
*************** along with GCC; see the file COPYING3.
*** 91,101 ****
       4: Object marks as well.  */
  #define GGC_DEBUG_LEVEL (0)
  
- #ifndef HOST_BITS_PER_PTR
- #define HOST_BITS_PER_PTR  HOST_BITS_PER_LONG
- #endif
- 
- 
  /* A two-level tree is used to look up the page-entry for a given
     pointer.  Two chunks of the pointer's bits are extracted to index
     the first and second levels of the tree, as follows:
--- 91,96 ----
diff -Nrcpad gcc-6.4.0/gcc/gimple-ssa-backprop.c gcc-6.5.0/gcc/gimple-ssa-backprop.c
*** gcc-6.4.0/gcc/gimple-ssa-backprop.c	Tue Feb  9 17:21:57 2016
--- gcc-6.5.0/gcc/gimple-ssa-backprop.c	Sat Jun 23 16:18:36 2018
*************** private:
*** 260,265 ****
--- 260,270 ----
       post-order walk.  */
    sbitmap m_visited_blocks;
  
+   /* A bitmap of phis that we have finished processing in the initial
+      post-order walk, excluding those from blocks mentioned in
+      M_VISITED_BLOCKS.  */
+   bitmap m_visited_phis;
+ 
    /* A worklist of SSA names whose definitions need to be reconsidered.  */
    auto_vec <tree, 64> m_worklist;
  
*************** backprop::backprop (function *fn)
*** 273,278 ****
--- 278,284 ----
    : m_fn (fn),
      m_info_pool ("usage_info"),
      m_visited_blocks (sbitmap_alloc (last_basic_block_for_fn (m_fn))),
+     m_visited_phis (BITMAP_ALLOC (NULL)),
      m_worklist_names (BITMAP_ALLOC (NULL))
  {
    bitmap_clear (m_visited_blocks);
*************** backprop::backprop (function *fn)
*** 281,286 ****
--- 287,293 ----
  backprop::~backprop ()
  {
    BITMAP_FREE (m_worklist_names);
+   BITMAP_FREE (m_visited_phis);
    sbitmap_free (m_visited_blocks);
    m_info_pool.release ();
  }
*************** backprop::intersect_uses (tree var, usag
*** 501,508 ****
      {
        if (is_gimple_debug (stmt))
  	continue;
!       if (is_a <gphi *> (stmt)
! 	  && !bitmap_bit_p (m_visited_blocks, gimple_bb (stmt)->index))
  	{
  	  /* Skip unprocessed phis.  */
  	  if (dump_file && (dump_flags & TDF_DETAILS))
--- 508,518 ----
      {
        if (is_gimple_debug (stmt))
  	continue;
!       gphi *phi = dyn_cast <gphi *> (stmt);
!       if (phi
! 	  && !bitmap_bit_p (m_visited_blocks, gimple_bb (phi)->index)
! 	  && !bitmap_bit_p (m_visited_phis,
! 			    SSA_NAME_VERSION (gimple_phi_result (phi))))
  	{
  	  /* Skip unprocessed phis.  */
  	  if (dump_file && (dump_flags & TDF_DETAILS))
*************** backprop::intersect_uses (tree var, usag
*** 510,516 ****
  	      fprintf (dump_file, "[BACKEDGE] ");
  	      print_generic_expr (dump_file, var, 0);
  	      fprintf (dump_file, " in ");
! 	      print_gimple_stmt (dump_file, stmt, 0, TDF_SLIM);
  	    }
  	}
        else
--- 520,526 ----
  	      fprintf (dump_file, "[BACKEDGE] ");
  	      print_generic_expr (dump_file, var, 0);
  	      fprintf (dump_file, " in ");
! 	      print_gimple_stmt (dump_file, phi, 0, TDF_SLIM);
  	    }
  	}
        else
*************** backprop::process_block (basic_block bb)
*** 634,640 ****
      }
    for (gphi_iterator gpi = gsi_start_phis (bb); !gsi_end_p (gpi);
         gsi_next (&gpi))
!     process_var (gimple_phi_result (gpi.phi ()));
  }
  
  /* Delete the definition of VAR, which has no uses.  */
--- 644,655 ----
      }
    for (gphi_iterator gpi = gsi_start_phis (bb); !gsi_end_p (gpi);
         gsi_next (&gpi))
!     {
!       tree result = gimple_phi_result (gpi.phi ());
!       process_var (result);
!       bitmap_set_bit (m_visited_phis, SSA_NAME_VERSION (result));
!     }
!   bitmap_clear (m_visited_phis);
  }
  
  /* Delete the definition of VAR, which has no uses.  */
diff -Nrcpad gcc-6.4.0/gcc/gimple-ssa-strength-reduction.c gcc-6.5.0/gcc/gimple-ssa-strength-reduction.c
*** gcc-6.4.0/gcc/gimple-ssa-strength-reduction.c	Wed Dec  7 01:04:47 2016
--- gcc-6.5.0/gcc/gimple-ssa-strength-reduction.c	Mon Jun 25 17:11:05 2018
*************** along with GCC; see the file COPYING3.
*** 55,60 ****
--- 55,61 ----
  #include "params.h"
  #include "tree-ssa-address.h"
  #include "tree-affine.h"
+ #include "tree-eh.h"
  #include "builtins.h"
  
  /* Information about a strength reduction candidate.  Each statement
*************** struct slsr_cand_d
*** 258,263 ****
--- 259,268 ----
       of a statement.  */
    cand_idx next_interp;
  
+   /* Index of the first candidate record in a chain for the same
+      statement.  */
+   cand_idx first_interp;
+ 
    /* Index of the basis statement S0, if any, in the candidate vector.  */
    cand_idx basis;
  
*************** find_phi_def (tree base)
*** 469,475 ****
  
    c = base_cand_from_table (base);
  
!   if (!c || c->kind != CAND_PHI)
      return 0;
  
    return c->cand_num;
--- 474,481 ----
  
    c = base_cand_from_table (base);
  
!   if (!c || c->kind != CAND_PHI
!       || SSA_NAME_OCCURS_IN_ABNORMAL_PHI (gimple_phi_result (c->cand_stmt)))
      return 0;
  
    return c->cand_num;
*************** find_basis_for_base_expr (slsr_cand_t c,
*** 507,512 ****
--- 513,523 ----
  			      gimple_bb (one_basis->cand_stmt)))
  	continue;
  
+       tree lhs = gimple_assign_lhs (one_basis->cand_stmt);
+       if (lhs && TREE_CODE (lhs) == SSA_NAME
+ 	  && SSA_NAME_OCCURS_IN_ABNORMAL_PHI (lhs))
+ 	continue;
+ 
        if (!basis || basis->cand_num < one_basis->cand_num)
  	basis = one_basis;
      }
*************** alloc_cand_and_find_basis (enum cand_kin
*** 627,632 ****
--- 638,644 ----
    c->kind = kind;
    c->cand_num = cand_vec.length () + 1;
    c->next_interp = 0;
+   c->first_interp = c->cand_num;
    c->dependent = 0;
    c->sibling = 0;
    c->def_phi = kind == CAND_MULT ? find_phi_def (base) : 0;
*************** slsr_process_mul (gimple *gs, tree rhs1,
*** 1192,1197 ****
--- 1204,1210 ----
  	 is the stride and RHS2 is the base expression.  */
        c2 = create_mul_ssa_cand (gs, rhs2, rhs1, speed);
        c->next_interp = c2->cand_num;
+       c2->first_interp = c->cand_num;
      }
    else
      {
*************** slsr_process_add (gimple *gs, tree rhs1,
*** 1419,1425 ****
  	{
  	  c2 = create_add_ssa_cand (gs, rhs2, rhs1, false, speed);
  	  if (c)
! 	    c->next_interp = c2->cand_num;
  	  else
  	    add_cand_for_stmt (gs, c2);
  	}
--- 1432,1441 ----
  	{
  	  c2 = create_add_ssa_cand (gs, rhs2, rhs1, false, speed);
  	  if (c)
! 	    {
! 	      c->next_interp = c2->cand_num;
! 	      c2->first_interp = c->cand_num;
! 	    }
  	  else
  	    add_cand_for_stmt (gs, c2);
  	}
*************** slsr_process_cast (gimple *gs, tree rhs1
*** 1545,1550 ****
--- 1561,1568 ----
  
    if (base_cand && base_cand->kind != CAND_PHI)
      {
+       slsr_cand_t first_cand = NULL;
+ 
        while (base_cand)
  	{
  	  /* Propagate all data from the base candidate except the type,
*************** slsr_process_cast (gimple *gs, tree rhs1
*** 1558,1563 ****
--- 1576,1587 ----
  					 base_cand->base_expr,
  					 base_cand->index, base_cand->stride,
  					 ctype, savings);
+ 	  if (!first_cand)
+ 	    first_cand = c;
+ 
+ 	  if (first_cand != c)
+ 	    c->first_interp = first_cand->cand_num;
+ 
  	  if (base_cand->next_interp)
  	    base_cand = lookup_cand (base_cand->next_interp);
  	  else
*************** slsr_process_cast (gimple *gs, tree rhs1
*** 1580,1585 ****
--- 1604,1610 ----
        c2 = alloc_cand_and_find_basis (CAND_MULT, gs, rhs1,
  				      0, integer_one_node, ctype, 0);
        c->next_interp = c2->cand_num;
+       c2->first_interp = c->cand_num;
      }
  
    /* Add the first (or only) interpretation to the statement-candidate
*************** slsr_process_copy (gimple *gs, tree rhs1
*** 1604,1609 ****
--- 1629,1636 ----
  
    if (base_cand && base_cand->kind != CAND_PHI)
      {
+       slsr_cand_t first_cand = NULL;
+ 
        while (base_cand)
  	{
  	  /* Propagate all data from the base candidate.  */
*************** slsr_process_copy (gimple *gs, tree rhs1
*** 1615,1620 ****
--- 1642,1653 ----
  					 base_cand->base_expr,
  					 base_cand->index, base_cand->stride,
  					 base_cand->cand_type, savings);
+ 	  if (!first_cand)
+ 	    first_cand = c;
+ 
+ 	  if (first_cand != c)
+ 	    c->first_interp = first_cand->cand_num;
+ 
  	  if (base_cand->next_interp)
  	    base_cand = lookup_cand (base_cand->next_interp);
  	  else
*************** slsr_process_copy (gimple *gs, tree rhs1
*** 1637,1642 ****
--- 1670,1676 ----
        c2 = alloc_cand_and_find_basis (CAND_MULT, gs, rhs1,
  				      0, integer_one_node, TREE_TYPE (rhs1), 0);
        c->next_interp = c2->cand_num;
+       c2->first_interp = c->cand_num;
      }
  
    /* Add the first (or only) interpretation to the statement-candidate
*************** find_candidates_dom_walker::before_dom_c
*** 1668,1673 ****
--- 1702,1710 ----
      {
        gimple *gs = gsi_stmt (gsi);
  
+       if (stmt_could_throw_p (gs))
+ 	continue;
+ 
        if (gimple_vuse (gs) && gimple_assign_single_p (gs))
  	slsr_process_ref (gs);
  
*************** dump_candidate (slsr_cand_t c)
*** 1790,1797 ****
    print_generic_expr (dump_file, c->cand_type, 0);
    fprintf (dump_file, "\n     basis: %d  dependent: %d  sibling: %d\n",
  	   c->basis, c->dependent, c->sibling);
!   fprintf (dump_file, "     next-interp: %d  dead-savings: %d\n",
! 	   c->next_interp, c->dead_savings);
    if (c->def_phi)
      fprintf (dump_file, "     phi:  %d\n", c->def_phi);
    fputs ("\n", dump_file);
--- 1827,1835 ----
    print_generic_expr (dump_file, c->cand_type, 0);
    fprintf (dump_file, "\n     basis: %d  dependent: %d  sibling: %d\n",
  	   c->basis, c->dependent, c->sibling);
!   fprintf (dump_file,
! 	   "     next-interp: %d  first-interp: %d  dead-savings: %d\n",
! 	   c->next_interp, c->first_interp, c->dead_savings);
    if (c->def_phi)
      fprintf (dump_file, "     phi:  %d\n", c->def_phi);
    fputs ("\n", dump_file);
*************** replace_mult_candidate (slsr_cand_t c, t
*** 2005,2095 ****
    tree target_type = TREE_TYPE (gimple_assign_lhs (c->cand_stmt));
    enum tree_code cand_code = gimple_assign_rhs_code (c->cand_stmt);
  
!   /* It is highly unlikely, but possible, that the resulting
!      bump doesn't fit in a HWI.  Abandon the replacement
!      in this case.  This does not affect siblings or dependents
!      of C.  Restriction to signed HWI is conservative for unsigned
!      types but allows for safe negation without twisted logic.  */
!   if (wi::fits_shwi_p (bump)
!       && bump.to_shwi () != HOST_WIDE_INT_MIN
!       /* It is not useful to replace casts, copies, or adds of
! 	 an SSA name and a constant.  */
!       && cand_code != MODIFY_EXPR
!       && !CONVERT_EXPR_CODE_P (cand_code)
!       && cand_code != PLUS_EXPR
!       && cand_code != POINTER_PLUS_EXPR
!       && cand_code != MINUS_EXPR)
      {
!       enum tree_code code = PLUS_EXPR;
!       tree bump_tree;
!       gimple *stmt_to_print = NULL;
  
!       /* If the basis name and the candidate's LHS have incompatible
! 	 types, introduce a cast.  */
!       if (!useless_type_conversion_p (target_type, TREE_TYPE (basis_name)))
! 	basis_name = introduce_cast_before_cand (c, target_type, basis_name);
!       if (wi::neg_p (bump))
! 	{
! 	  code = MINUS_EXPR;
! 	  bump = -bump;
! 	}
  
!       bump_tree = wide_int_to_tree (target_type, bump);
  
!       if (dump_file && (dump_flags & TDF_DETAILS))
  	{
! 	  fputs ("Replacing: ", dump_file);
! 	  print_gimple_stmt (dump_file, c->cand_stmt, 0, 0);
  	}
! 
!       if (bump == 0)
  	{
- 	  tree lhs = gimple_assign_lhs (c->cand_stmt);
- 	  gassign *copy_stmt = gimple_build_assign (lhs, basis_name);
- 	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
- 	  gimple_set_location (copy_stmt, gimple_location (c->cand_stmt));
- 	  gsi_replace (&gsi, copy_stmt, false);
- 	  c->cand_stmt = copy_stmt;
  	  if (dump_file && (dump_flags & TDF_DETAILS))
! 	    stmt_to_print = copy_stmt;
  	}
        else
  	{
! 	  tree rhs1, rhs2;
! 	  if (cand_code != NEGATE_EXPR) {
! 	    rhs1 = gimple_assign_rhs1 (c->cand_stmt);
! 	    rhs2 = gimple_assign_rhs2 (c->cand_stmt);
! 	  }
! 	  if (cand_code != NEGATE_EXPR
! 	      && ((operand_equal_p (rhs1, basis_name, 0)
! 		   && operand_equal_p (rhs2, bump_tree, 0))
! 		  || (operand_equal_p (rhs1, bump_tree, 0)
! 		      && operand_equal_p (rhs2, basis_name, 0))))
! 	    {
! 	      if (dump_file && (dump_flags & TDF_DETAILS))
! 		{
! 		  fputs ("(duplicate, not actually replacing)", dump_file);
! 		  stmt_to_print = c->cand_stmt;
! 		}
! 	    }
! 	  else
  	    {
! 	      gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
! 	      gimple_assign_set_rhs_with_ops (&gsi, code,
! 					      basis_name, bump_tree);
! 	      update_stmt (gsi_stmt (gsi));
!               c->cand_stmt = gsi_stmt (gsi);
! 	      if (dump_file && (dump_flags & TDF_DETAILS))
! 		stmt_to_print = gsi_stmt (gsi);
  	    }
  	}
    
!       if (dump_file && (dump_flags & TDF_DETAILS))
! 	{
! 	  fputs ("With: ", dump_file);
! 	  print_gimple_stmt (dump_file, stmt_to_print, 0, 0);
! 	  fputs ("\n", dump_file);
!   	}
      }
  }
  
--- 2043,2144 ----
    tree target_type = TREE_TYPE (gimple_assign_lhs (c->cand_stmt));
    enum tree_code cand_code = gimple_assign_rhs_code (c->cand_stmt);
  
!   /* It is not useful to replace casts, copies, negates, or adds of
!      an SSA name and a constant.  */
!   if (cand_code == MODIFY_EXPR
!       || CONVERT_EXPR_CODE_P (cand_code)
!       || cand_code == PLUS_EXPR
!       || cand_code == POINTER_PLUS_EXPR
!       || cand_code == MINUS_EXPR
!       || cand_code == NEGATE_EXPR)
!     return;
! 
!   enum tree_code code = PLUS_EXPR;
!   tree bump_tree;
!   gimple *stmt_to_print = NULL;
! 
!   /* If the basis name and the candidate's LHS have incompatible
!      types, introduce a cast.  */
!   if (!useless_type_conversion_p (target_type, TREE_TYPE (basis_name)))
!     basis_name = introduce_cast_before_cand (c, target_type, basis_name);
!   if (wi::neg_p (bump))
      {
!       code = MINUS_EXPR;
!       bump = -bump;
!     }
  
!  /* It is possible that the resulting bump doesn't fit in target_type.
!     Abandon the replacement in this case.  This does not affect
!     siblings or dependents of C.  */
!   if (bump != wi::ext (bump, TYPE_PRECISION (target_type),
! 		       TYPE_SIGN (target_type)))
!     return;
  
!   bump_tree = wide_int_to_tree (target_type, bump);
  
!   if (dump_file && (dump_flags & TDF_DETAILS))
!     {
!       fputs ("Replacing: ", dump_file);
!       print_gimple_stmt (dump_file, c->cand_stmt, 0, 0);
!     }
! 
!   if (bump == 0)
!     {
!       tree lhs = gimple_assign_lhs (c->cand_stmt);
!       gassign *copy_stmt = gimple_build_assign (lhs, basis_name);
!       gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
!       slsr_cand_t cc = lookup_cand (c->first_interp);
!       gimple_set_location (copy_stmt, gimple_location (c->cand_stmt));
!       gsi_replace (&gsi, copy_stmt, false);
!       while (cc)
  	{
! 	  cc->cand_stmt = copy_stmt;
! 	  cc = cc->next_interp ? lookup_cand (cc->next_interp) : NULL;
  	}
!       if (dump_file && (dump_flags & TDF_DETAILS))
! 	stmt_to_print = copy_stmt;
!     }
!   else
!     {
!       tree rhs1, rhs2;
!       if (cand_code != NEGATE_EXPR) {
! 	rhs1 = gimple_assign_rhs1 (c->cand_stmt);
! 	rhs2 = gimple_assign_rhs2 (c->cand_stmt);
!       }
!       if (cand_code != NEGATE_EXPR
! 	  && ((operand_equal_p (rhs1, basis_name, 0)
! 	       && operand_equal_p (rhs2, bump_tree, 0))
! 	      || (operand_equal_p (rhs1, bump_tree, 0)
! 		  && operand_equal_p (rhs2, basis_name, 0))))
  	{
  	  if (dump_file && (dump_flags & TDF_DETAILS))
! 	    {
! 	      fputs ("(duplicate, not actually replacing)", dump_file);
! 	      stmt_to_print = c->cand_stmt;
! 	    }
  	}
        else
  	{
! 	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
! 	  slsr_cand_t cc = lookup_cand (c->first_interp);
! 	  gimple_assign_set_rhs_with_ops (&gsi, code,
! 					  basis_name, bump_tree);
! 	  update_stmt (gsi_stmt (gsi));
! 	  while (cc)
  	    {
! 	      cc->cand_stmt = gsi_stmt (gsi);
! 	      cc = cc->next_interp ? lookup_cand (cc->next_interp) : NULL;
  	    }
+ 	  if (dump_file && (dump_flags & TDF_DETAILS))
+ 	    stmt_to_print = gsi_stmt (gsi);
  	}
+     }
    
!   if (dump_file && (dump_flags & TDF_DETAILS))
!     {
!       fputs ("With: ", dump_file);
!       print_gimple_stmt (dump_file, stmt_to_print, 0, 0);
!       fputs ("\n", dump_file);
      }
  }
  
*************** create_add_on_incoming_edge (slsr_cand_t
*** 2141,2148 ****
  			     widest_int increment, edge e, location_t loc,
  			     bool known_stride)
  {
-   basic_block insert_bb;
-   gimple_stmt_iterator gsi;
    tree lhs, basis_type;
    gassign *new_stmt;
  
--- 2190,2195 ----
*************** create_add_on_incoming_edge (slsr_cand_t
*** 2197,2215 ****
  	gcc_unreachable ();
      }
  
-   insert_bb = single_succ_p (e->src) ? e->src : split_edge (e);
-   gsi = gsi_last_bb (insert_bb);
- 
-   if (!gsi_end_p (gsi) && is_ctrl_stmt (gsi_stmt (gsi)))
-     gsi_insert_before (&gsi, new_stmt, GSI_NEW_STMT);
-   else
-     gsi_insert_after (&gsi, new_stmt, GSI_NEW_STMT);
- 
    gimple_set_location (new_stmt, loc);
  
    if (dump_file && (dump_flags & TDF_DETAILS))
      {
!       fprintf (dump_file, "Inserting in block %d: ", insert_bb->index);
        print_gimple_stmt (dump_file, new_stmt, 0, 0);
      }
  
--- 2244,2256 ----
  	gcc_unreachable ();
      }
  
    gimple_set_location (new_stmt, loc);
+   gsi_insert_on_edge (e, new_stmt);
  
    if (dump_file && (dump_flags & TDF_DETAILS))
      {
!       fprintf (dump_file, "Inserting on edge %d->%d: ", e->src->index,
! 	       e->dest->index);
        print_gimple_stmt (dump_file, new_stmt, 0, 0);
      }
  
*************** insert_initializers (slsr_cand_t c)
*** 3136,3141 ****
--- 3177,3199 ----
  	 that block, the earliest one will be returned in WHERE.  */
        bb = nearest_common_dominator_for_cands (c, incr, &where);
  
+       /* If the NCD is not dominated by the block containing the
+ 	 definition of the stride, we can't legally insert a
+ 	 single initializer.  Mark the increment as unprofitable
+ 	 so we don't make any replacements.  FIXME: Multiple
+ 	 initializers could be placed with more analysis.  */
+       gimple *stride_def = SSA_NAME_DEF_STMT (c->stride);
+       basic_block stride_bb = gimple_bb (stride_def);
+ 
+       if (stride_bb && !dominated_by_p (CDI_DOMINATORS, bb, stride_bb))
+ 	{
+ 	  if (dump_file && (dump_flags & TDF_DETAILS))
+ 	    fprintf (dump_file,
+ 		     "Initializer #%d cannot be legally placed\n", i);
+ 	  incr_vec[i].cost = COST_INFINITE;
+ 	  continue;
+ 	}
+ 
        /* Create a new SSA name to hold the initializer's value.  */
        stride_type = TREE_TYPE (c->stride);
        new_name = make_temp_ssa_name (stride_type, NULL, "slsr");
*************** replace_rhs_if_not_dup (enum tree_code n
*** 3280,3289 ****
  	      || !operand_equal_p (new_rhs2, old_rhs1, 0))))
      {
        gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
        gimple_assign_set_rhs_with_ops (&gsi, new_code, new_rhs1, new_rhs2);
        update_stmt (gsi_stmt (gsi));
!       c->cand_stmt = gsi_stmt (gsi);
! 
        if (dump_file && (dump_flags & TDF_DETAILS))
  	return gsi_stmt (gsi);
      }
--- 3338,3351 ----
  	      || !operand_equal_p (new_rhs2, old_rhs1, 0))))
      {
        gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
+       slsr_cand_t cc = lookup_cand (c->first_interp);
        gimple_assign_set_rhs_with_ops (&gsi, new_code, new_rhs1, new_rhs2);
        update_stmt (gsi_stmt (gsi));
!       while (cc)
! 	{
! 	  cc->cand_stmt = gsi_stmt (gsi);
! 	  cc = cc->next_interp ? lookup_cand (cc->next_interp) : NULL;
! 	}
        if (dump_file && (dump_flags & TDF_DETAILS))
  	return gsi_stmt (gsi);
      }
*************** replace_one_candidate (slsr_cand_t c, un
*** 3314,3319 ****
--- 3376,3386 ----
    orig_rhs2 = gimple_assign_rhs2 (c->cand_stmt);
    cand_incr = cand_increment (c);
  
+   /* If orig_rhs2 is NULL, we have already replaced this in situ with
+      a copy statement under another interpretation.  */
+   if (!orig_rhs2)
+     return;
+ 
    if (dump_file && (dump_flags & TDF_DETAILS))
      {
        fputs ("Replacing: ", dump_file);
*************** replace_one_candidate (slsr_cand_t c, un
*** 3386,3395 ****
  	  || !operand_equal_p (rhs2, orig_rhs2, 0))
  	{
  	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
  	  gimple_assign_set_rhs_with_ops (&gsi, MINUS_EXPR, basis_name, rhs2);
  	  update_stmt (gsi_stmt (gsi));
!           c->cand_stmt = gsi_stmt (gsi);
! 
  	  if (dump_file && (dump_flags & TDF_DETAILS))
  	    stmt_to_print = gsi_stmt (gsi);
  	}
--- 3453,3466 ----
  	  || !operand_equal_p (rhs2, orig_rhs2, 0))
  	{
  	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
+ 	  slsr_cand_t cc = lookup_cand (c->first_interp);
  	  gimple_assign_set_rhs_with_ops (&gsi, MINUS_EXPR, basis_name, rhs2);
  	  update_stmt (gsi_stmt (gsi));
! 	  while (cc)
! 	    {
! 	      cc->cand_stmt = gsi_stmt (gsi);
! 	      cc = cc->next_interp ? lookup_cand (cc->next_interp) : NULL;
! 	    }
  	  if (dump_file && (dump_flags & TDF_DETAILS))
  	    stmt_to_print = gsi_stmt (gsi);
  	}
*************** replace_one_candidate (slsr_cand_t c, un
*** 3407,3416 ****
  	{
  	  gassign *copy_stmt = gimple_build_assign (lhs, basis_name);
  	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
  	  gimple_set_location (copy_stmt, gimple_location (c->cand_stmt));
  	  gsi_replace (&gsi, copy_stmt, false);
! 	  c->cand_stmt = copy_stmt;
! 
  	  if (dump_file && (dump_flags & TDF_DETAILS))
  	    stmt_to_print = copy_stmt;
  	}
--- 3478,3491 ----
  	{
  	  gassign *copy_stmt = gimple_build_assign (lhs, basis_name);
  	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
+ 	  slsr_cand_t cc = lookup_cand (c->first_interp);
  	  gimple_set_location (copy_stmt, gimple_location (c->cand_stmt));
  	  gsi_replace (&gsi, copy_stmt, false);
! 	  while (cc)
! 	    {
! 	      cc->cand_stmt = copy_stmt;
! 	      cc = cc->next_interp ? lookup_cand (cc->next_interp) : NULL;
! 	    }
  	  if (dump_file && (dump_flags & TDF_DETAILS))
  	    stmt_to_print = copy_stmt;
  	}
*************** replace_one_candidate (slsr_cand_t c, un
*** 3418,3427 ****
  	{
  	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
  	  gassign *cast_stmt = gimple_build_assign (lhs, NOP_EXPR, basis_name);
  	  gimple_set_location (cast_stmt, gimple_location (c->cand_stmt));
  	  gsi_replace (&gsi, cast_stmt, false);
! 	  c->cand_stmt = cast_stmt;
! 
  	  if (dump_file && (dump_flags & TDF_DETAILS))
  	    stmt_to_print = cast_stmt;
  	}
--- 3493,3506 ----
  	{
  	  gimple_stmt_iterator gsi = gsi_for_stmt (c->cand_stmt);
  	  gassign *cast_stmt = gimple_build_assign (lhs, NOP_EXPR, basis_name);
+ 	  slsr_cand_t cc = lookup_cand (c->first_interp);
  	  gimple_set_location (cast_stmt, gimple_location (c->cand_stmt));
  	  gsi_replace (&gsi, cast_stmt, false);
! 	  while (cc)
! 	    {
! 	      cc->cand_stmt = cast_stmt;
! 	      cc = cc->next_interp ? lookup_cand (cc->next_interp) : NULL;
! 	    }
  	  if (dump_file && (dump_flags & TDF_DETAILS))
  	    stmt_to_print = cast_stmt;
  	}
*************** analyze_candidates_and_replace (void)
*** 3577,3582 ****
--- 3656,3665 ----
  	  free (incr_vec);
  	}
      }
+ 
+   /* For conditional candidates, we may have uncommitted insertions
+      on edges to clean up.  */
+   gsi_commit_edge_inserts ();
  }
  
  namespace {
diff -Nrcpad gcc-6.4.0/gcc/gimplify.c gcc-6.5.0/gcc/gimplify.c
*** gcc-6.4.0/gcc/gimplify.c	Thu Jun 22 11:23:19 2017
--- gcc-6.5.0/gcc/gimplify.c	Fri Oct 12 17:29:35 2018
*************** gimplify_modify_expr (tree *expr_p, gimp
*** 4696,4702 ****
       side as statements and throw away the assignment.  Do this after
       gimplify_modify_expr_rhs so we handle TARGET_EXPRs of addressable
       types properly.  */
!   if (zero_sized_type (TREE_TYPE (*from_p)) && !want_value)
      {
        gimplify_stmt (from_p, pre_p);
        gimplify_stmt (to_p, pre_p);
--- 4696,4707 ----
       side as statements and throw away the assignment.  Do this after
       gimplify_modify_expr_rhs so we handle TARGET_EXPRs of addressable
       types properly.  */
!   if (zero_sized_type (TREE_TYPE (*from_p))
!       && !want_value
!       /* Don't do this for calls that return addressable types, expand_call
! 	 relies on those having a lhs.  */
!       && !(TREE_ADDRESSABLE (TREE_TYPE (*from_p))
! 	   && TREE_CODE (*from_p) == CALL_EXPR))
      {
        gimplify_stmt (from_p, pre_p);
        gimplify_stmt (to_p, pre_p);
*************** gimplify_cleanup_point_expr (tree *expr_
*** 5529,5538 ****
  
  /* Insert a cleanup marker for gimplify_cleanup_point_expr.  CLEANUP
     is the cleanup action required.  EH_ONLY is true if the cleanup should
!    only be executed if an exception is thrown, not on normal exit.  */
  
  static void
! gimple_push_cleanup (tree var, tree cleanup, bool eh_only, gimple_seq *pre_p)
  {
    gimple *wce;
    gimple_seq cleanup_stmts = NULL;
--- 5534,5546 ----
  
  /* Insert a cleanup marker for gimplify_cleanup_point_expr.  CLEANUP
     is the cleanup action required.  EH_ONLY is true if the cleanup should
!    only be executed if an exception is thrown, not on normal exit.
!    If FORCE_UNCOND is true perform the cleanup unconditionally;  this is
!    only valid for clobbers.  */
  
  static void
! gimple_push_cleanup (tree var, tree cleanup, bool eh_only, gimple_seq *pre_p,
! 		     bool force_uncond = false)
  {
    gimple *wce;
    gimple_seq cleanup_stmts = NULL;
*************** gimple_push_cleanup (tree var, tree clea
*** 5564,5585 ****
  	   }
  	   val
        */
!       tree flag = create_tmp_var (boolean_type_node, "cleanup");
!       gassign *ffalse = gimple_build_assign (flag, boolean_false_node);
!       gassign *ftrue = gimple_build_assign (flag, boolean_true_node);
  
!       cleanup = build3 (COND_EXPR, void_type_node, flag, cleanup, NULL);
!       gimplify_stmt (&cleanup, &cleanup_stmts);
!       wce = gimple_build_wce (cleanup_stmts);
  
!       gimplify_seq_add_stmt (&gimplify_ctxp->conditional_cleanups, ffalse);
!       gimplify_seq_add_stmt (&gimplify_ctxp->conditional_cleanups, wce);
!       gimplify_seq_add_stmt (pre_p, ftrue);
  
!       /* Because of this manipulation, and the EH edges that jump
! 	 threading cannot redirect, the temporary (VAR) will appear
! 	 to be used uninitialized.  Don't warn.  */
!       TREE_NO_WARNING (var) = 1;
      }
    else
      {
--- 5572,5602 ----
  	   }
  	   val
        */
!       if (force_uncond)
! 	{
! 	  gimplify_stmt (&cleanup, &cleanup_stmts);
! 	  wce = gimple_build_wce (cleanup_stmts);
! 	  gimplify_seq_add_stmt (&gimplify_ctxp->conditional_cleanups, wce);
! 	}
!       else
! 	{
! 	  tree flag = create_tmp_var (boolean_type_node, "cleanup");
! 	  gassign *ffalse = gimple_build_assign (flag, boolean_false_node);
! 	  gassign *ftrue = gimple_build_assign (flag, boolean_true_node);
  
! 	  cleanup = build3 (COND_EXPR, void_type_node, flag, cleanup, NULL);
! 	  gimplify_stmt (&cleanup, &cleanup_stmts);
! 	  wce = gimple_build_wce (cleanup_stmts);
  
! 	  gimplify_seq_add_stmt (&gimplify_ctxp->conditional_cleanups, ffalse);
! 	  gimplify_seq_add_stmt (&gimplify_ctxp->conditional_cleanups, wce);
! 	  gimplify_seq_add_stmt (pre_p, ftrue);
  
! 	  /* Because of this manipulation, and the EH edges that jump
! 	     threading cannot redirect, the temporary (VAR) will appear
! 	     to be used uninitialized.  Don't warn.  */
! 	  TREE_NO_WARNING (var) = 1;
! 	}
      }
    else
      {
*************** gimplify_target_expr (tree *expr_p, gimp
*** 5656,5666 ****
  					    NULL);
  	  TREE_THIS_VOLATILE (clobber) = true;
  	  clobber = build2 (MODIFY_EXPR, TREE_TYPE (temp), temp, clobber);
! 	  if (cleanup)
! 	    cleanup = build2 (COMPOUND_EXPR, void_type_node, cleanup,
! 			      clobber);
! 	  else
! 	    cleanup = clobber;
  	}
  
        if (cleanup)
--- 5673,5679 ----
  					    NULL);
  	  TREE_THIS_VOLATILE (clobber) = true;
  	  clobber = build2 (MODIFY_EXPR, TREE_TYPE (temp), temp, clobber);
! 	  gimple_push_cleanup (temp, clobber, false, pre_p, true);
  	}
  
        if (cleanup)
*************** gimplify_omp_for (tree *expr_p, gimple_s
*** 8712,8720 ****
  	  t = TREE_VEC_ELT (OMP_FOR_INIT (for_stmt), i);
  	  if (!is_gimple_constant (TREE_OPERAND (t, 1)))
  	    {
  	      TREE_OPERAND (t, 1)
  		= get_initialized_tmp_var (TREE_OPERAND (t, 1),
! 					   pre_p, NULL);
  	      tree c = build_omp_clause (input_location,
  					 OMP_CLAUSE_FIRSTPRIVATE);
  	      OMP_CLAUSE_DECL (c) = TREE_OPERAND (t, 1);
--- 8725,8749 ----
  	  t = TREE_VEC_ELT (OMP_FOR_INIT (for_stmt), i);
  	  if (!is_gimple_constant (TREE_OPERAND (t, 1)))
  	    {
+ 	      tree type = TREE_TYPE (TREE_OPERAND (t, 0));
  	      TREE_OPERAND (t, 1)
  		= get_initialized_tmp_var (TREE_OPERAND (t, 1),
! 					   gimple_seq_empty_p (for_pre_body)
! 					   ? pre_p : &for_pre_body, NULL);
! 	      /* Reference to pointer conversion is considered useless,
! 		 but is significant for firstprivate clause.  Force it
! 		 here.  */
! 	      if (TREE_CODE (type) == POINTER_TYPE
! 		  && (TREE_CODE (TREE_TYPE (TREE_OPERAND (t, 1)))
! 		      == REFERENCE_TYPE))
! 		{
! 		  tree v = create_tmp_var (TYPE_MAIN_VARIANT (type));
! 		  tree m = build2 (INIT_EXPR, TREE_TYPE (v), v,
! 				   TREE_OPERAND (t, 1));
! 		  gimplify_and_add (m, gimple_seq_empty_p (for_pre_body)
! 				       ? pre_p : &for_pre_body);
! 		  TREE_OPERAND (t, 1) = v;
! 		}
  	      tree c = build_omp_clause (input_location,
  					 OMP_CLAUSE_FIRSTPRIVATE);
  	      OMP_CLAUSE_DECL (c) = TREE_OPERAND (t, 1);
*************** gimplify_omp_for (tree *expr_p, gimple_s
*** 8726,8735 ****
--- 8755,8779 ----
  	  t = TREE_VEC_ELT (OMP_FOR_COND (for_stmt), i);
  	  if (!is_gimple_constant (TREE_OPERAND (t, 1)))
  	    {
+ 	      tree type = TREE_TYPE (TREE_OPERAND (t, 0));
  	      TREE_OPERAND (t, 1)
  		= get_initialized_tmp_var (TREE_OPERAND (t, 1),
  					   gimple_seq_empty_p (for_pre_body)
  					   ? pre_p : &for_pre_body, NULL);
+ 	      /* Reference to pointer conversion is considered useless,
+ 		 but is significant for firstprivate clause.  Force it
+ 		 here.  */
+ 	      if (TREE_CODE (type) == POINTER_TYPE
+ 		  && (TREE_CODE (TREE_TYPE (TREE_OPERAND (t, 1)))
+ 		      == REFERENCE_TYPE))
+ 		{
+ 		  tree v = create_tmp_var (TYPE_MAIN_VARIANT (type));
+ 		  tree m = build2 (INIT_EXPR, TREE_TYPE (v), v,
+ 				   TREE_OPERAND (t, 1));
+ 		  gimplify_and_add (m, gimple_seq_empty_p (for_pre_body)
+ 				       ? pre_p : &for_pre_body);
+ 		  TREE_OPERAND (t, 1) = v;
+ 		}
  	      tree c = build_omp_clause (input_location,
  					 OMP_CLAUSE_FIRSTPRIVATE);
  	      OMP_CLAUSE_DECL (c) = TREE_OPERAND (t, 1);
diff -Nrcpad gcc-6.4.0/gcc/go/ChangeLog gcc-6.5.0/gcc/go/ChangeLog
*** gcc-6.4.0/gcc/go/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/go/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/graphite.h gcc-6.5.0/gcc/graphite.h
*** gcc-6.4.0/gcc/graphite.h	Tue Jan 26 00:19:20 2016
--- gcc-6.5.0/gcc/graphite.h	Tue Aug 14 15:15:39 2018
*************** along with GCC; see the file COPYING3.
*** 40,45 ****
--- 40,47 ----
  #ifdef HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS
  /* isl 0.15 or later.  */
  #include <isl/schedule_node.h>
+ #include <isl/id.h>
+ #include <isl/space.h>
  
  #else
  /* isl 0.14 or 0.13.  */
diff -Nrcpad gcc-6.4.0/gcc/hsa-brig.c gcc-6.5.0/gcc/hsa-brig.c
*** gcc-6.4.0/gcc/hsa-brig.c	Mon Apr 18 09:15:53 2016
--- gcc-6.5.0/gcc/hsa-brig.c	Wed Jul 26 13:59:54 2017
*************** brig_init (void)
*** 492,498 ****
  	  else
  	    part++;
  	  char *modname2;
! 	  asprintf (&modname2, "%s_%s", modname, part);
  	  free (modname);
  	  modname = modname2;
  	}
--- 492,498 ----
  	  else
  	    part++;
  	  char *modname2;
! 	  modname2 = xasprintf ("%s_%s", modname, part);
  	  free (modname);
  	  modname = modname2;
  	}
diff -Nrcpad gcc-6.4.0/gcc/hwint.h gcc-6.5.0/gcc/hwint.h
*** gcc-6.4.0/gcc/hwint.h	Thu Feb 11 23:53:54 2016
--- gcc-6.5.0/gcc/hwint.h	Fri Dec 15 11:32:27 2017
***************
*** 14,19 ****
--- 14,20 ----
  #define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT)
  #define HOST_BITS_PER_INT   (CHAR_BIT * SIZEOF_INT)
  #define HOST_BITS_PER_LONG  (CHAR_BIT * SIZEOF_LONG)
+ #define HOST_BITS_PER_PTR   (CHAR_BIT * SIZEOF_VOID_P)
  
  /* The string that should be inserted into a printf style format to
     indicate a "long" operand.  */
diff -Nrcpad gcc-6.4.0/gcc/internal-fn.c gcc-6.5.0/gcc/internal-fn.c
*** gcc-6.4.0/gcc/internal-fn.c	Wed Feb 15 06:59:34 2017
--- gcc-6.5.0/gcc/internal-fn.c	Fri Oct 13 20:14:34 2017
*************** expand_mul_overflow (location_t loc, tre
*** 1565,1572 ****
  		}
  
  	      /* At this point hipart{0,1} are both in [-1, 0].  If they are
! 		 the same, overflow happened if res is negative, if they are
! 		 different, overflow happened if res is positive.  */
  	      if (op0_sign != 1 && op1_sign != 1 && op0_sign != op1_sign)
  		emit_jump (hipart_different);
  	      else if (op0_sign == 1 || op1_sign == 1)
--- 1565,1572 ----
  		}
  
  	      /* At this point hipart{0,1} are both in [-1, 0].  If they are
! 		 the same, overflow happened if res is non-positive, if they
! 		 are different, overflow happened if res is positive.  */
  	      if (op0_sign != 1 && op1_sign != 1 && op0_sign != op1_sign)
  		emit_jump (hipart_different);
  	      else if (op0_sign == 1 || op1_sign == 1)
*************** expand_mul_overflow (location_t loc, tre
*** 1574,1580 ****
  					 NULL_RTX, NULL, hipart_different,
  					 PROB_EVEN);
  
! 	      do_compare_rtx_and_jump (res, const0_rtx, LT, false, mode,
  				       NULL_RTX, NULL, do_error,
  				       PROB_VERY_UNLIKELY);
  	      emit_jump (done_label);
--- 1574,1580 ----
  					 NULL_RTX, NULL, hipart_different,
  					 PROB_EVEN);
  
! 	      do_compare_rtx_and_jump (res, const0_rtx, LE, false, mode,
  				       NULL_RTX, NULL, do_error,
  				       PROB_VERY_UNLIKELY);
  	      emit_jump (done_label);
diff -Nrcpad gcc-6.4.0/gcc/ipa-cp.c gcc-6.5.0/gcc/ipa-cp.c
*** gcc-6.4.0/gcc/ipa-cp.c	Fri May 26 11:28:44 2017
--- gcc-6.5.0/gcc/ipa-cp.c	Thu May 17 12:18:06 2018
*************** determine_versionability (struct cgraph_
*** 544,549 ****
--- 544,567 ----
        reason = "calls comdat-local function";
      }
  
+   /* Functions calling BUILT_IN_VA_ARG_PACK and BUILT_IN_VA_ARG_PACK_LEN
+      works only when inlined.  Cloning them may still lead to better code
+      becuase ipa-cp will not give up on cloning further.  If the function is
+      external this however leads to wrong code becuase we may end up producing
+      offline copy of the function.  */
+   if (DECL_EXTERNAL (node->decl))
+     for (cgraph_edge *edge = node->callees; !reason && edge;
+ 	 edge = edge->next_callee)
+       if (DECL_BUILT_IN (edge->callee->decl)
+ 	  && DECL_BUILT_IN_CLASS (edge->callee->decl) == BUILT_IN_NORMAL)
+         {
+ 	  if (DECL_FUNCTION_CODE (edge->callee->decl) == BUILT_IN_VA_ARG_PACK)
+ 	    reason = "external function which calls va_arg_pack";
+ 	  if (DECL_FUNCTION_CODE (edge->callee->decl)
+ 	      == BUILT_IN_VA_ARG_PACK_LEN)
+ 	    reason = "external function which calls va_arg_pack_len";
+         }
+ 
    if (reason && dump_file && !node->alias && !node->thunk.thunk_p)
      fprintf (dump_file, "Function %s/%i is not versionable, reason: %s.\n",
  	     node->name (), node->order, reason);
*************** intersect_with_plats (struct ipcp_param_
*** 3685,3691 ****
  	  if (aglat->offset - offset == item->offset)
  	    {
  	      gcc_checking_assert (item->value);
! 	      if (values_equal_for_ipcp_p (item->value, aglat->values->value))
  		found = true;
  	      break;
  	    }
--- 3703,3711 ----
  	  if (aglat->offset - offset == item->offset)
  	    {
  	      gcc_checking_assert (item->value);
! 	      if (aglat->is_single_const ()
! 		  && values_equal_for_ipcp_p (item->value,
! 					      aglat->values->value))
  		found = true;
  	      break;
  	    }
diff -Nrcpad gcc-6.4.0/gcc/ipa-devirt.c gcc-6.5.0/gcc/ipa-devirt.c
*** gcc-6.4.0/gcc/ipa-devirt.c	Thu Jun 22 11:18:57 2017
--- gcc-6.5.0/gcc/ipa-devirt.c	Wed Apr 25 07:41:44 2018
*************** odr_types_equivalent_p (tree t1, tree t2
*** 1576,1583 ****
  				 "in another translation unit"));
  		    return false;
  		  }
! 		gcc_assert (DECL_NONADDRESSABLE_P (f1)
! 			    == DECL_NONADDRESSABLE_P (f2));
  	      }
  
  	    /* If one aggregate has more fields than the other, they
--- 1576,1590 ----
  				 "in another translation unit"));
  		    return false;
  		  }
! 		if (DECL_BIT_FIELD (f1) != DECL_BIT_FIELD (f2))
! 		  {
! 		    warn_odr (t1, t2, f1, f2, warn, warned,
! 			      G_("one field is bitfield while other is not"));
! 		    return false;
! 		  }
! 		else
! 		  gcc_assert (DECL_NONADDRESSABLE_P (f1)
! 			      == DECL_NONADDRESSABLE_P (f2));
  	      }
  
  	    /* If one aggregate has more fields than the other, they
diff -Nrcpad gcc-6.4.0/gcc/ipa-icf-gimple.c gcc-6.5.0/gcc/ipa-icf-gimple.c
*** gcc-6.4.0/gcc/ipa-icf-gimple.c	Fri Apr 22 11:08:16 2016
--- gcc-6.5.0/gcc/ipa-icf-gimple.c	Fri Sep 15 09:21:42 2017
*************** func_checker::compare_cst_or_decl (tree
*** 361,370 ****
        }
      case LABEL_DECL:
        {
  	int *bb1 = m_label_bb_map.get (t1);
  	int *bb2 = m_label_bb_map.get (t2);
  
! 	return return_with_debug (*bb1 == *bb2);
        }
      case PARM_DECL:
      case RESULT_DECL:
--- 361,374 ----
        }
      case LABEL_DECL:
        {
+ 	if (t1 == t2)
+ 	  return true;
+ 
  	int *bb1 = m_label_bb_map.get (t1);
  	int *bb2 = m_label_bb_map.get (t2);
  
! 	/* Labels can point to another function (non-local GOTOs).  */
! 	return return_with_debug (bb1 != NULL && bb2 != NULL && *bb1 == *bb2);
        }
      case PARM_DECL:
      case RESULT_DECL:
*************** func_checker::compare_operand (tree t1,
*** 539,549 ****
      }
  }
  
- /* Compares two tree list operands T1 and T2 and returns true if these
-    two trees are semantically equivalent.  */
- 
  bool
! func_checker::compare_tree_list_operand (tree t1, tree t2)
  {
    gcc_assert (TREE_CODE (t1) == TREE_LIST);
    gcc_assert (TREE_CODE (t2) == TREE_LIST);
--- 543,550 ----
      }
  }
  
  bool
! func_checker::compare_asm_inputs_outputs (tree t1, tree t2)
  {
    gcc_assert (TREE_CODE (t1) == TREE_LIST);
    gcc_assert (TREE_CODE (t2) == TREE_LIST);
*************** func_checker::compare_tree_list_operand
*** 556,561 ****
--- 557,572 ----
        if (!compare_operand (TREE_VALUE (t1), TREE_VALUE (t2)))
  	return return_false ();
  
+       tree p1 = TREE_PURPOSE (t1);
+       tree p2 = TREE_PURPOSE (t2);
+ 
+       gcc_assert (TREE_CODE (p1) == TREE_LIST);
+       gcc_assert (TREE_CODE (p2) == TREE_LIST);
+ 
+       if (strcmp (TREE_STRING_POINTER (TREE_VALUE (p1)),
+ 		  TREE_STRING_POINTER (TREE_VALUE (p2))) != 0)
+ 	return return_false ();
+ 
        t2 = TREE_CHAIN (t2);
      }
  
*************** func_checker::compare_gimple_asm (const
*** 1004,1010 ****
        tree input1 = gimple_asm_input_op (g1, i);
        tree input2 = gimple_asm_input_op (g2, i);
  
!       if (!compare_tree_list_operand (input1, input2))
  	return return_false_with_msg ("ASM input is different");
      }
  
--- 1015,1021 ----
        tree input1 = gimple_asm_input_op (g1, i);
        tree input2 = gimple_asm_input_op (g2, i);
  
!       if (!compare_asm_inputs_outputs (input1, input2))
  	return return_false_with_msg ("ASM input is different");
      }
  
*************** func_checker::compare_gimple_asm (const
*** 1013,1019 ****
        tree output1 = gimple_asm_output_op (g1, i);
        tree output2 = gimple_asm_output_op (g2, i);
  
!       if (!compare_tree_list_operand (output1, output2))
  	return return_false_with_msg ("ASM output is different");
      }
  
--- 1024,1030 ----
        tree output1 = gimple_asm_output_op (g1, i);
        tree output2 = gimple_asm_output_op (g2, i);
  
!       if (!compare_asm_inputs_outputs (output1, output2))
  	return return_false_with_msg ("ASM output is different");
      }
  
diff -Nrcpad gcc-6.4.0/gcc/ipa-icf-gimple.h gcc-6.5.0/gcc/ipa-icf-gimple.h
*** gcc-6.4.0/gcc/ipa-icf-gimple.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/ipa-icf-gimple.h	Fri Sep 15 09:21:42 2017
*************** public:
*** 215,223 ****
       is returned.  */
    bool compare_operand (tree t1, tree t2);
  
!   /* Compares two tree list operands T1 and T2 and returns true if these
!      two trees are semantically equivalent.  */
!   bool compare_tree_list_operand (tree t1, tree t2);
  
    /* Verifies that trees T1 and T2, representing function declarations
       are equivalent from perspective of ICF.  */
--- 215,223 ----
       is returned.  */
    bool compare_operand (tree t1, tree t2);
  
!   /* Compares GIMPLE ASM inputs (or outputs) where we iterate tree chain
!      and compare both TREE_PURPOSEs and TREE_VALUEs.  */
!   bool compare_asm_inputs_outputs (tree t1, tree t2);
  
    /* Verifies that trees T1 and T2, representing function declarations
       are equivalent from perspective of ICF.  */
diff -Nrcpad gcc-6.4.0/gcc/ipa-icf.c gcc-6.5.0/gcc/ipa-icf.c
*** gcc-6.4.0/gcc/ipa-icf.c	Thu Nov 24 10:19:22 2016
--- gcc-6.5.0/gcc/ipa-icf.c	Thu Mar  8 08:56:20 2018
*************** sem_function::merge (sem_item *alias_ite
*** 1116,1121 ****
--- 1116,1132 ----
        return false;
      }
  
+   if (!original->in_same_comdat_group_p (alias)
+       || original->comdat_local_p ())
+     {
+       if (dump_file)
+ 	fprintf (dump_file,
+ 		 "Not unifying; alias nor wrapper cannot be created; "
+ 		 "across comdat group boundary\n\n");
+ 
+       return false;
+     }
+ 
    /* See if original is in a section that can be discarded if the main
       symbol is not used.  */
  
diff -Nrcpad gcc-6.4.0/gcc/ipa-inline.c gcc-6.5.0/gcc/ipa-inline.c
*** gcc-6.4.0/gcc/ipa-inline.c	Tue Mar  8 17:49:34 2016
--- gcc-6.5.0/gcc/ipa-inline.c	Mon Jun 25 17:22:32 2018
*************** inline_small_functions (void)
*** 1771,1777 ****
  		struct cgraph_node *n2;
  		int id = dfs->scc_no + 1;
  		for (n2 = node; n2;
! 		     n2 = ((struct ipa_dfs_info *) node->aux)->next_cycle)
  		  {
  		    struct inline_summary *info2 = inline_summaries->get (n2);
  		    if (info2->scc_no)
--- 1771,1777 ----
  		struct cgraph_node *n2;
  		int id = dfs->scc_no + 1;
  		for (n2 = node; n2;
! 		     n2 = ((struct ipa_dfs_info *) n2->aux)->next_cycle)
  		  {
  		    struct inline_summary *info2 = inline_summaries->get (n2);
  		    if (info2->scc_no)
*************** dump_inline_stats (void)
*** 2356,2361 ****
--- 2356,2374 ----
  	       (int) reason[i][2], (int) reason[i][1], reason[i][0]);
  }
  
+ /* Called when node is removed.  */
+ 
+ static void
+ flatten_remove_node_hook (struct cgraph_node *node, void *data)
+ {
+   if (lookup_attribute ("flatten", DECL_ATTRIBUTES (node->decl)) == NULL)
+     return;
+ 
+   hash_set<struct cgraph_node *> *removed
+     = (hash_set<struct cgraph_node *> *) data;
+   removed->add (node);
+ }
+ 
  /* Decide on the inlining.  We do so in the topological order to avoid
     expenses on updating data structures.  */
  
*************** ipa_inline (void)
*** 2365,2371 ****
    struct cgraph_node *node;
    int nnodes;
    struct cgraph_node **order;
!   int i;
    int cold;
    bool remove_functions = false;
  
--- 2378,2384 ----
    struct cgraph_node *node;
    int nnodes;
    struct cgraph_node **order;
!   int i, j;
    int cold;
    bool remove_functions = false;
  
*************** ipa_inline (void)
*** 2406,2431 ****
    if (dump_file)
      fprintf (dump_file, "\nFlattening functions:\n");
  
    /* In the first pass handle functions to be flattened.  Do this with
       a priority so none of our later choices will make this impossible.  */
!   for (i = nnodes - 1; i >= 0; i--)
      {
        node = order[i];
  
        /* Handle nodes to be flattened.
  	 Ideally when processing callees we stop inlining at the
  	 entry of cycles, possibly cloning that entry point and
  	 try to flatten itself turning it into a self-recursive
  	 function.  */
!       if (lookup_attribute ("flatten",
! 			    DECL_ATTRIBUTES (node->decl)) != NULL)
! 	{
! 	  if (dump_file)
! 	    fprintf (dump_file,
! 		     "Flattening %s\n", node->name ());
! 	  flatten_function (node, false);
! 	}
      }
    if (dump_file)
      dump_overall_stats ();
  
--- 2419,2474 ----
    if (dump_file)
      fprintf (dump_file, "\nFlattening functions:\n");
  
+   /* First shrink order array, so that it only contains nodes with
+      flatten attribute.  */
+   for (i = nnodes - 1, j = i; i >= 0; i--)
+     {
+       node = order[i];
+       if (lookup_attribute ("flatten",
+ 			    DECL_ATTRIBUTES (node->decl)) != NULL)
+ 	order[j--] = order[i];
+     }
+ 
+   /* After the above loop, order[j + 1] ... order[nnodes - 1] contain
+      nodes with flatten attribute.  If there is more than one such
+      node, we need to register a node removal hook, as flatten_function
+      could remove other nodes with flatten attribute.  See PR82801.  */
+   struct cgraph_node_hook_list *node_removal_hook_holder = NULL;
+   hash_set<struct cgraph_node *> *flatten_removed_nodes = NULL;
+   if (j < nnodes - 2)
+     {
+       flatten_removed_nodes = new hash_set<struct cgraph_node *>;
+       node_removal_hook_holder
+ 	= symtab->add_cgraph_removal_hook (&flatten_remove_node_hook,
+ 					   flatten_removed_nodes);
+     }
+ 
    /* In the first pass handle functions to be flattened.  Do this with
       a priority so none of our later choices will make this impossible.  */
!   for (i = nnodes - 1; i > j; i--)
      {
        node = order[i];
+       if (flatten_removed_nodes
+ 	  && flatten_removed_nodes->contains (node))
+ 	continue;
  
        /* Handle nodes to be flattened.
  	 Ideally when processing callees we stop inlining at the
  	 entry of cycles, possibly cloning that entry point and
  	 try to flatten itself turning it into a self-recursive
  	 function.  */
!       if (dump_file)
! 	fprintf (dump_file, "Flattening %s\n", node->name ());
!       flatten_function (node, false);
!     }
! 
!   if (j < nnodes - 2)
!     {
!       symtab->remove_cgraph_removal_hook (node_removal_hook_holder);
!       delete flatten_removed_nodes;
      }
+   free (order);
+ 
    if (dump_file)
      dump_overall_stats ();
  
*************** ipa_inline (void)
*** 2437,2443 ****
       inline functions and virtual functions so we really know what is called
       once.  */
    symtab->remove_unreachable_nodes (dump_file);
-   free (order);
  
    /* Inline functions with a property that after inlining into all callers the
       code size will shrink because the out-of-line copy is eliminated. 
--- 2480,2485 ----
diff -Nrcpad gcc-6.4.0/gcc/ipa-utils.c gcc-6.5.0/gcc/ipa-utils.c
*** gcc-6.4.0/gcc/ipa-utils.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/ipa-utils.c	Wed Mar  7 09:46:50 2018
*************** ipa_merge_profiles (struct cgraph_node *
*** 403,408 ****
--- 403,410 ----
  
    if (!dst->count)
      return;
+   if (!src->count || src->alias)
+     return;
    if (symtab->dump_file)
      {
        fprintf (symtab->dump_file, "Merging profiles of %s/%i to %s/%i\n",
diff -Nrcpad gcc-6.4.0/gcc/ipa-visibility.c gcc-6.5.0/gcc/ipa-visibility.c
*** gcc-6.4.0/gcc/ipa-visibility.c	Thu Jun 22 11:16:16 2017
--- gcc-6.5.0/gcc/ipa-visibility.c	Fri Sep 15 09:13:29 2017
*************** non_local_p (struct cgraph_node *node, v
*** 97,103 ****
  	   && !DECL_EXTERNAL (node->decl)
  	   && !node->externally_visible
  	   && !node->used_from_other_partition
! 	   && !node->in_other_partition);
  }
  
  /* Return true when function can be marked local.  */
--- 97,104 ----
  	   && !DECL_EXTERNAL (node->decl)
  	   && !node->externally_visible
  	   && !node->used_from_other_partition
! 	   && !node->in_other_partition
! 	   && node->get_availability () >= AVAIL_AVAILABLE);
  }
  
  /* Return true when function can be marked local.  */
diff -Nrcpad gcc-6.4.0/gcc/ira.c gcc-6.5.0/gcc/ira.c
*** gcc-6.4.0/gcc/ira.c	Tue Jun 27 17:11:01 2017
--- gcc-6.5.0/gcc/ira.c	Wed Oct 18 21:15:24 2017
*************** rtx_moveable_p (rtx *loc, enum op_type t
*** 4405,4410 ****
--- 4405,4416 ----
  	 for a reason.  */
        return false;
  
+     case ASM_OPERANDS:
+       /* The same is true for volatile asm: it has unknown side effects, it
+          cannot be moved at will.  */
+       if (MEM_VOLATILE_P (x))
+ 	return false;
+ 
      default:
        break;
      }
diff -Nrcpad gcc-6.4.0/gcc/is-a.h gcc-6.5.0/gcc/is-a.h
*** gcc-6.4.0/gcc/is-a.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/is-a.h	Wed Jun 20 11:09:28 2018
*************** TYPE dyn_cast <TYPE> (pointer)
*** 103,108 ****
--- 103,113 ----
      Note that we have converted two sets of assertions in the calls to varpool
      into safe and efficient use of a variable.
  
+ TYPE safe_dyn_cast <TYPE> (pointer)
+ 
+     Like dyn_cast <TYPE> (pointer), except that it accepts null pointers
+     and returns null results for them.
+ 
  
  If you use these functions and get a 'inline function not defined' or a
  'missing symbol' error message for 'is_a_helper<....>::test', it means that
*************** dyn_cast (U *p)
*** 222,225 ****
--- 227,239 ----
      return static_cast <T> (0);
  }
  
+ /* Similar to dyn_cast, except that the pointer may be null.  */
+ 
+ template <typename T, typename U>
+ inline T
+ safe_dyn_cast (U *p)
+ {
+   return p ? dyn_cast <T> (p) : 0;
+ }
+ 
  #endif  /* GCC_IS_A_H  */
diff -Nrcpad gcc-6.4.0/gcc/java/ChangeLog gcc-6.5.0/gcc/java/ChangeLog
*** gcc-6.4.0/gcc/java/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/java/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/jit/ChangeLog gcc-6.5.0/gcc/jit/ChangeLog
*** gcc-6.4.0/gcc/jit/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/jit/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/loop-unroll.c gcc-6.5.0/gcc/loop-unroll.c
*** gcc-6.4.0/gcc/loop-unroll.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/loop-unroll.c	Wed Mar  7 09:47:11 2018
*************** unroll_loop_constant_iterations (struct
*** 477,483 ****
  
    exit_mod = niter % (max_unroll + 1);
  
!   wont_exit = sbitmap_alloc (max_unroll + 1);
    bitmap_ones (wont_exit);
  
    auto_vec<edge> remove_edges;
--- 477,483 ----
  
    exit_mod = niter % (max_unroll + 1);
  
!   wont_exit = sbitmap_alloc (max_unroll + 2);
    bitmap_ones (wont_exit);
  
    auto_vec<edge> remove_edges;
diff -Nrcpad gcc-6.4.0/gcc/lower-subreg.c gcc-6.5.0/gcc/lower-subreg.c
*** gcc-6.4.0/gcc/lower-subreg.c	Tue Mar 29 15:19:00 2016
--- gcc-6.5.0/gcc/lower-subreg.c	Mon Jun 25 17:52:28 2018
*************** find_decomposable_subregs (rtx *loc, enu
*** 489,495 ****
  	     were the same number and size of pieces.  Hopefully this
  	     doesn't happen much.  */
  
! 	  if (outer_words == 1 && inner_words > 1)
  	    {
  	      bitmap_set_bit (decomposable_context, regno);
  	      iter.skip_subrtxes ();
--- 489,504 ----
  	     were the same number and size of pieces.  Hopefully this
  	     doesn't happen much.  */
  
! 	  if (outer_words == 1
! 	      && inner_words > 1
! 	      /* Don't allow to decompose floating point subregs of
! 		 multi-word pseudos if the floating point mode does
! 		 not have word size, because otherwise we'd generate
! 		 a subreg with that floating mode from a different
! 		 sized integral pseudo which is not allowed by
! 		 validate_subreg.  */
! 	      && (!FLOAT_MODE_P (GET_MODE (x))
! 		  || outer_size == UNITS_PER_WORD))
  	    {
  	      bitmap_set_bit (decomposable_context, regno);
  	      iter.skip_subrtxes ();
diff -Nrcpad gcc-6.4.0/gcc/lra-remat.c gcc-6.5.0/gcc/lra-remat.c
*** gcc-6.4.0/gcc/lra-remat.c	Tue Jan 17 10:09:47 2017
--- gcc-6.5.0/gcc/lra-remat.c	Fri Sep 15 21:37:58 2017
*************** reg_overlap_for_remat_p (lra_insn_reg *r
*** 753,759 ****
  
  	if (regno2 >= FIRST_PSEUDO_REGISTER && reg_renumber[regno2] >= 0)
  	  regno2 = reg_renumber[regno2];
! 	if (regno >= FIRST_PSEUDO_REGISTER)
  	  nregs2 = 1;
  	else
  	  nregs2 = hard_regno_nregs[regno2][reg->biggest_mode];
--- 753,759 ----
  
  	if (regno2 >= FIRST_PSEUDO_REGISTER && reg_renumber[regno2] >= 0)
  	  regno2 = reg_renumber[regno2];
! 	if (regno2 >= FIRST_PSEUDO_REGISTER)
  	  nregs2 = 1;
  	else
  	  nregs2 = hard_regno_nregs[regno2][reg->biggest_mode];
diff -Nrcpad gcc-6.4.0/gcc/lto/ChangeLog gcc-6.5.0/gcc/lto/ChangeLog
*** gcc-6.4.0/gcc/lto/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/lto/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,98 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-04-25  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-04-10  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR lto/85248
+ 	* lto-symtab.c (lto_symtab_merge_p): Do not check for
+ 	TREE_VALUES of error attributes.
+ 
+ 2018-04-25  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-04-10  Richard Biener  <rguenther@suse.de>
+ 		    Martin Liska  <mliska@suse.cz>
+ 
+ 	PR lto/85248
+ 	* lto-symtab.c (lto_symtab_merge_p): Handle noreturn attribute.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-23  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR lto/81440
+ 	* lto-symtab.c (lto_symtab_merge): Handle and do not warn about
+ 	trailing arrays at the end of a struct.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	* lto-partition.c (lto_balanced_map): Watch overflow.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-08  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	PR ipa/81360
+ 	* lto.c (unify_scc): Register prevailing trees, not trees to be freed.
+ 	(read_cgraph_and_symbols): Use
+ 	symtab_node::output_to_lto_symbol_table_p.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	* lto.c (register_resolution): Remove forgotten sanity check.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	PR lto/81004
+ 	* lto.c: Include builtins.h
+ 	(register_resolution): Merge resolutions in case trees was
+ 	merged across units.
+ 	(lto_maybe_register_decl): Break out from ...
+ 	(lto_read_decls): ... here.
+ 	(unify_scc): Also register decls here.
+ 	(read_cgraph_and_symbols): Sanity check that all resolutions was
+ 	read.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-02  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	PR lto/83954
+ 	* lto-symtab.c (warn_type_compatibility_p): Do not recurse into the
+ 	component type of array types with non-aliased component.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	PR lto/83954
+ 	* lto-symtab.c (warn_type_compatibility_p): Silence false positive
+ 	for type match warning on arrays of pointers.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-10-13  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	* lto-lang.c (lto_post_options): Clean shlib flag when not doing PIC.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/lto/lto-lang.c gcc-6.5.0/gcc/lto/lto-lang.c
*** gcc-6.4.0/gcc/lto/lto-lang.c	Tue Jan 17 20:33:16 2017
--- gcc-6.5.0/gcc/lto/lto-lang.c	Wed Mar  7 09:42:53 2018
*************** lto_post_options (const char **pfilename
*** 837,847 ****
--- 837,849 ----
           flag_pie is 2.  */
        flag_pie = MAX (flag_pie, flag_pic);
        flag_pic = flag_pie;
+       flag_shlib = 0;
        break;
  
      case LTO_LINKER_OUTPUT_EXEC: /* Normal executable */
        flag_pic = 0;
        flag_pie = 0;
+       flag_shlib = 0;
        break;
  
      case LTO_LINKER_OUTPUT_UNKNOWN:
diff -Nrcpad gcc-6.4.0/gcc/lto/lto-partition.c gcc-6.5.0/gcc/lto/lto-partition.c
*** gcc-6.4.0/gcc/lto/lto-partition.c	Thu Jun 22 11:14:49 2017
--- gcc-6.5.0/gcc/lto/lto-partition.c	Wed Mar  7 09:46:21 2018
*************** lto_balanced_map (int n_lto_partitions)
*** 751,757 ****
  	  if (npartitions < n_lto_partitions)
  	    partition_size = total_size / (n_lto_partitions - npartitions);
  	  else
! 	    partition_size = INT_MAX;
  
  	  if (partition_size < PARAM_VALUE (MIN_PARTITION_SIZE))
  	    partition_size = PARAM_VALUE (MIN_PARTITION_SIZE);
--- 751,758 ----
  	  if (npartitions < n_lto_partitions)
  	    partition_size = total_size / (n_lto_partitions - npartitions);
  	  else
! 	    /* Watch for overflow.  */
! 	    partition_size = INT_MAX / 16;
  
  	  if (partition_size < PARAM_VALUE (MIN_PARTITION_SIZE))
  	    partition_size = PARAM_VALUE (MIN_PARTITION_SIZE);
diff -Nrcpad gcc-6.4.0/gcc/lto/lto-symtab.c gcc-6.5.0/gcc/lto/lto-symtab.c
*** gcc-6.4.0/gcc/lto/lto-symtab.c	Tue Jan 19 11:59:58 2016
--- gcc-6.5.0/gcc/lto/lto-symtab.c	Wed Apr 25 07:40:46 2018
*************** warn_type_compatibility_p (tree prevaili
*** 280,290 ****
        alias_set_type set1 = get_alias_set (type);
        alias_set_type set2 = get_alias_set (prevailing_type);
  
!       if (set1 && set2 && set1 != set2 
!           && (!POINTER_TYPE_P (type) || !POINTER_TYPE_P (prevailing_type)
  	      || (set1 != TYPE_ALIAS_SET (ptr_type_node)
! 		  && set2 != TYPE_ALIAS_SET (ptr_type_node))))
!         lev |= 5;
      }
  
    return lev;
--- 280,304 ----
        alias_set_type set1 = get_alias_set (type);
        alias_set_type set2 = get_alias_set (prevailing_type);
  
!       if (set1 && set2 && set1 != set2)
! 	{
!           tree t1 = type, t2 = prevailing_type;
! 
! 	  /* Alias sets of arrays with aliased components are the same as alias
! 	     sets of the inner types.  */
! 	  while (TREE_CODE (t1) == ARRAY_TYPE
! 		 && !TYPE_NONALIASED_COMPONENT (t1)
! 		 && TREE_CODE (t2) == ARRAY_TYPE
! 		 && !TYPE_NONALIASED_COMPONENT (t2))
! 	    {
! 	      t1 = TREE_TYPE (t1);
! 	      t2 = TREE_TYPE (t2);
! 	    }
!           if ((!POINTER_TYPE_P (t1) || !POINTER_TYPE_P (t2))
  	      || (set1 != TYPE_ALIAS_SET (ptr_type_node)
! 		  && set2 != TYPE_ALIAS_SET (ptr_type_node)))
!              lev |= 5;
! 	}
      }
  
    return lev;
*************** lto_symtab_merge (symtab_node *prevailin
*** 348,365 ****
      return false;
  
    if (DECL_SIZE (decl) && DECL_SIZE (prevailing_decl)
!       && !tree_int_cst_equal (DECL_SIZE (decl), DECL_SIZE (prevailing_decl))
        /* As a special case do not warn about merging
  	 int a[];
  	 and
  	 int a[]={1,2,3};
  	 here the first declaration is COMMON
  	 and sizeof(a) == sizeof (int).  */
!       && ((!DECL_COMMON (decl) && !DECL_EXTERNAL (decl))
! 	  || TREE_CODE (TREE_TYPE (decl)) != ARRAY_TYPE
! 	  || TYPE_SIZE (TREE_TYPE (decl))
! 	     != TYPE_SIZE (TREE_TYPE (TREE_TYPE (decl)))))
!     return false;
  
    return true;
  }
--- 362,392 ----
      return false;
  
    if (DECL_SIZE (decl) && DECL_SIZE (prevailing_decl)
!       && !tree_int_cst_equal (DECL_SIZE (decl), DECL_SIZE (prevailing_decl)))
!       {
! 	if (!DECL_COMMON (decl) && !DECL_EXTERNAL (decl))
! 	  return false;
! 
! 	tree type = TREE_TYPE (decl);
! 
! 	/* For record type, check for array at the end of the structure.  */
! 	if (TREE_CODE (type) == RECORD_TYPE)
! 	  {
! 	    tree field = TYPE_FIELDS (type);
! 	    while (DECL_CHAIN (field) != NULL_TREE)
! 	      field = DECL_CHAIN (field);
! 
! 	    return TREE_CODE (TREE_TYPE (field)) == ARRAY_TYPE;
! 	  }
        /* As a special case do not warn about merging
  	 int a[];
  	 and
  	 int a[]={1,2,3};
  	 here the first declaration is COMMON
  	 and sizeof(a) == sizeof (int).  */
! 	else if (TREE_CODE (type) == ARRAY_TYPE)
! 	  return (TYPE_SIZE (decl) == TYPE_SIZE (TREE_TYPE (type)));
!       }
  
    return true;
  }
*************** lto_symtab_merge_p (tree prevailing, tre
*** 541,546 ****
--- 568,576 ----
  	  return false;
  	}
      }
+ 
+   /* FIXME: after MPX is removed, use flags_from_decl_or_type
+      function instead.  PR lto/85248.  */
    if (DECL_ATTRIBUTES (prevailing) != DECL_ATTRIBUTES (decl))
      {
        tree prev_attr = lookup_attribute ("error", DECL_ATTRIBUTES (prevailing));
*************** lto_symtab_merge_p (tree prevailing, tre
*** 568,573 ****
--- 598,613 ----
  		     "warning attribute mismatch\n");
  	  return false;
  	}
+ 
+       prev_attr = lookup_attribute ("noreturn", DECL_ATTRIBUTES (prevailing));
+       attr = lookup_attribute ("noreturn", DECL_ATTRIBUTES (decl));
+       if ((prev_attr == NULL) != (attr == NULL))
+ 	{
+           if (symtab->dump_file)
+ 	    fprintf (symtab->dump_file, "Not merging decls; "
+ 		     "noreturn attribute mismatch\n");
+ 	  return false;
+ 	}
      }
    return true;
  }
diff -Nrcpad gcc-6.4.0/gcc/lto/lto.c gcc-6.5.0/gcc/lto/lto.c
*** gcc-6.4.0/gcc/lto/lto.c	Wed Nov 23 14:31:16 2016
--- gcc-6.5.0/gcc/lto/lto.c	Wed Mar  7 09:45:44 2018
*************** along with GCC; see the file COPYING3.
*** 52,57 ****
--- 52,58 ----
  #include "lto-symtab.h"
  #include "stringpool.h"
  #include "fold-const.h"
+ #include "builtins.h"
  
  
  /* Number of parallel tasks to run, -1 if we want to use GNU Make jobserver.  */
*************** static void
*** 828,839 ****
  register_resolution (struct lto_file_decl_data *file_data, tree decl,
  		     enum ld_plugin_symbol_resolution resolution)
  {
    if (resolution == LDPR_UNKNOWN)
      return;
    if (!file_data->resolution_map)
      file_data->resolution_map
        = new hash_map<tree, ld_plugin_symbol_resolution>;
!   file_data->resolution_map->put (decl, resolution);
  }
  
  /* Register DECL with the global symbol table and change its
--- 829,847 ----
  register_resolution (struct lto_file_decl_data *file_data, tree decl,
  		     enum ld_plugin_symbol_resolution resolution)
  {
+   bool existed;
    if (resolution == LDPR_UNKNOWN)
      return;
    if (!file_data->resolution_map)
      file_data->resolution_map
        = new hash_map<tree, ld_plugin_symbol_resolution>;
!   ld_plugin_symbol_resolution_t &res
!      = file_data->resolution_map->get_or_insert (decl, &existed);
!   if (!existed
!       || resolution == LDPR_PREVAILING_DEF_IRONLY
!       || resolution == LDPR_PREVAILING_DEF
!       || resolution == LDPR_PREVAILING_DEF_IRONLY_EXP)
!     res = resolution;
  }
  
  /* Register DECL with the global symbol table and change its
*************** lto_register_function_decl_in_symtab (st
*** 876,881 ****
--- 884,901 ----
  			 decl, get_resolution (data_in, ix));
  }
  
+ /* Check if T is a decl and needs register its resolution info.  */
+ 
+ static void
+ lto_maybe_register_decl (struct data_in *data_in, tree t, unsigned ix)
+ {
+   if (TREE_CODE (t) == VAR_DECL)
+     lto_register_var_decl_in_symtab (data_in, t, ix);
+   else if (TREE_CODE (t) == FUNCTION_DECL
+ 	   && !DECL_BUILT_IN (t))
+     lto_register_function_decl_in_symtab (data_in, t, ix);
+ }
+ 
  
  /* For the type T re-materialize it in the type variant list and
     the pointer/reference-to chains.  */
*************** unify_scc (struct data_in *data_in, unsi
*** 1611,1617 ****
  	  /* Fixup the streamer cache with the prevailing nodes according
  	     to the tree node mapping computed by compare_tree_sccs.  */
  	  if (len == 1)
! 	    streamer_tree_cache_replace_tree (cache, pscc->entries[0], from);
  	  else
  	    {
  	      tree *map2 = XALLOCAVEC (tree, 2 * len);
--- 1631,1640 ----
  	  /* Fixup the streamer cache with the prevailing nodes according
  	     to the tree node mapping computed by compare_tree_sccs.  */
  	  if (len == 1)
! 	    {
! 	      lto_maybe_register_decl (data_in, pscc->entries[0], from);
! 	      streamer_tree_cache_replace_tree (cache, pscc->entries[0], from);
! 	    }
  	  else
  	    {
  	      tree *map2 = XALLOCAVEC (tree, 2 * len);
*************** unify_scc (struct data_in *data_in, unsi
*** 1623,1630 ****
  	      qsort (map2, len, 2 * sizeof (tree), cmp_tree);
  	      qsort (map, len, 2 * sizeof (tree), cmp_tree);
  	      for (unsigned i = 0; i < len; ++i)
! 		streamer_tree_cache_replace_tree (cache, map[2*i],
! 						  (uintptr_t)map2[2*i]);
  	    }
  
  	  /* Free the tree nodes from the read SCC.  */
--- 1646,1657 ----
  	      qsort (map2, len, 2 * sizeof (tree), cmp_tree);
  	      qsort (map, len, 2 * sizeof (tree), cmp_tree);
  	      for (unsigned i = 0; i < len; ++i)
! 		{
! 		  lto_maybe_register_decl (data_in, map[2*i],
! 					   (uintptr_t)map2[2*i]);
! 		  streamer_tree_cache_replace_tree (cache, map[2*i],
! 						    (uintptr_t)map2[2*i]);
! 		}
  	    }
  
  	  /* Free the tree nodes from the read SCC.  */
*************** lto_read_decls (struct lto_file_decl_dat
*** 1764,1776 ****
  		}
  	      if (!flag_ltrans)
  		{
! 		  /* Register variables and functions with the
! 		     symbol table.  */
! 		  if (TREE_CODE (t) == VAR_DECL)
! 		    lto_register_var_decl_in_symtab (data_in, t, from + i);
! 		  else if (TREE_CODE (t) == FUNCTION_DECL
! 			   && !DECL_BUILT_IN (t))
! 		    lto_register_function_decl_in_symtab (data_in, t, from + i);
  		  /* Scan the tree for references to global functions or
  		     variables and record those for later fixup.  */
  		  if (mentions_vars_p (t))
--- 1791,1797 ----
  		}
  	      if (!flag_ltrans)
  		{
! 		  lto_maybe_register_decl (data_in, t, from + i);
  		  /* Scan the tree for references to global functions or
  		     variables and record those for later fixup.  */
  		  if (mentions_vars_p (t))
*************** read_cgraph_and_symbols (unsigned nfiles
*** 2861,2873 ****
  
    /* Store resolutions into the symbol table.  */
  
-   ld_plugin_symbol_resolution_t *res;
    FOR_EACH_SYMBOL (snode)
!     if (snode->real_symbol_p ()
! 	&& snode->lto_file_data
! 	&& snode->lto_file_data->resolution_map
! 	&& (res = snode->lto_file_data->resolution_map->get (snode->decl)))
!       snode->resolution = *res;
    for (i = 0; all_file_decl_data[i]; i++)
      if (all_file_decl_data[i]->resolution_map)
        {
--- 2882,2906 ----
  
    /* Store resolutions into the symbol table.  */
  
    FOR_EACH_SYMBOL (snode)
!     if (snode->externally_visible && snode->real_symbol_p ()
! 	&& snode->lto_file_data && snode->lto_file_data->resolution_map
! 	&& !is_builtin_fn (snode->decl)
! 	&& !(VAR_P (snode->decl) && DECL_HARD_REGISTER (snode->decl)))
!       {
! 	ld_plugin_symbol_resolution_t *res;
! 
! 	res = snode->lto_file_data->resolution_map->get (snode->decl);
! 	if (!res || *res == LDPR_UNKNOWN)
! 	  {
! 	    if (snode->output_to_lto_symbol_table_p ())
! 	      fatal_error (input_location, "missing resolution data for %s",
! 		           IDENTIFIER_POINTER
! 			     (DECL_ASSEMBLER_NAME (snode->decl)));
! 	  }
! 	else
!           snode->resolution = *res;
!       }
    for (i = 0; all_file_decl_data[i]; i++)
      if (all_file_decl_data[i]->resolution_map)
        {
diff -Nrcpad gcc-6.4.0/gcc/lto-streamer-out.c gcc-6.5.0/gcc/lto-streamer-out.c
*** gcc-6.4.0/gcc/lto-streamer-out.c	Wed Mar 16 16:50:18 2016
--- gcc-6.5.0/gcc/lto-streamer-out.c	Wed Mar  7 09:45:44 2018
*************** write_symbol (struct streamer_tree_cache
*** 2517,2530 ****
    const char *comdat;
    unsigned char c;
  
!   /* None of the following kinds of symbols are needed in the
!      symbol table.  */
!   if (!TREE_PUBLIC (t)
!       || is_builtin_fn (t)
!       || DECL_ABSTRACT_P (t)
!       || (TREE_CODE (t) == VAR_DECL && DECL_HARD_REGISTER (t)))
!     return;
!   gcc_assert (TREE_CODE (t) != RESULT_DECL);
  
    gcc_assert (TREE_CODE (t) == VAR_DECL
  	      || TREE_CODE (t) == FUNCTION_DECL);
--- 2517,2526 ----
    const char *comdat;
    unsigned char c;
  
!   gcc_checking_assert (TREE_PUBLIC (t)
! 		       && !is_builtin_fn (t)
! 		       && !DECL_ABSTRACT_P (t)
! 		       && (!VAR_P (t) || !DECL_HARD_REGISTER (t)));
  
    gcc_assert (TREE_CODE (t) == VAR_DECL
  	      || TREE_CODE (t) == FUNCTION_DECL);
*************** write_symbol (struct streamer_tree_cache
*** 2614,2658 ****
    lto_write_data (&slot_num, 4);
  }
  
- /* Return true if NODE should appear in the plugin symbol table.  */
- 
- bool
- output_symbol_p (symtab_node *node)
- {
-   struct cgraph_node *cnode;
-   if (!node->real_symbol_p ())
-     return false;
-   /* We keep external functions in symtab for sake of inlining
-      and devirtualization.  We do not want to see them in symbol table as
-      references unless they are really used.  */
-   cnode = dyn_cast <cgraph_node *> (node);
-   if (cnode && (!node->definition || DECL_EXTERNAL (cnode->decl))
-       && cnode->callers)
-     return true;
- 
-  /* Ignore all references from external vars initializers - they are not really
-     part of the compilation unit until they are used by folding.  Some symbols,
-     like references to external construction vtables can not be referred to at all.
-     We decide this at can_refer_decl_in_current_unit_p.  */
-  if (!node->definition || DECL_EXTERNAL (node->decl))
-     {
-       int i;
-       struct ipa_ref *ref;
-       for (i = 0; node->iterate_referring (i, ref); i++)
- 	{
- 	  if (ref->use == IPA_REF_ALIAS)
- 	    continue;
-           if (is_a <cgraph_node *> (ref->referring))
- 	    return true;
- 	  if (!DECL_EXTERNAL (ref->referring->decl))
- 	    return true;
- 	}
-       return false;
-     }
-   return true;
- }
- 
- 
  /* Write an IL symbol table to OB.
     SET and VSET are cgraph/varpool node sets we are outputting.  */
  
--- 2610,2615 ----
*************** produce_symtab (struct output_block *ob)
*** 2677,2683 ****
      {
        symtab_node *node = lsei_node (lsei);
  
!       if (!output_symbol_p (node) || DECL_EXTERNAL (node->decl))
  	continue;
        write_symbol (cache, node->decl, &seen, false);
      }
--- 2634,2640 ----
      {
        symtab_node *node = lsei_node (lsei);
  
!       if (DECL_EXTERNAL (node->decl) || !node->output_to_lto_symbol_table_p ())
  	continue;
        write_symbol (cache, node->decl, &seen, false);
      }
*************** produce_symtab (struct output_block *ob)
*** 2686,2692 ****
      {
        symtab_node *node = lsei_node (lsei);
  
!       if (!output_symbol_p (node) || !DECL_EXTERNAL (node->decl))
  	continue;
        write_symbol (cache, node->decl, &seen, false);
      }
--- 2643,2649 ----
      {
        symtab_node *node = lsei_node (lsei);
  
!       if (!DECL_EXTERNAL (node->decl) || !node->output_to_lto_symbol_table_p ())
  	continue;
        write_symbol (cache, node->decl, &seen, false);
      }
diff -Nrcpad gcc-6.4.0/gcc/objc/ChangeLog gcc-6.5.0/gcc/objc/ChangeLog
*** gcc-6.4.0/gcc/objc/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/objc/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/objcp/ChangeLog gcc-6.5.0/gcc/objcp/ChangeLog
*** gcc-6.4.0/gcc/objcp/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/objcp/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/omp-low.c gcc-6.5.0/gcc/omp-low.c
*** gcc-6.4.0/gcc/omp-low.c	Thu Jun 22 11:09:08 2017
--- gcc-6.5.0/gcc/omp-low.c	Fri Oct 12 17:30:45 2018
*************** omp_copy_decl (tree var, copy_body_data
*** 1559,1564 ****
--- 1559,1566 ----
  
    if (TREE_CODE (var) == LABEL_DECL)
      {
+       if (FORCED_LABEL (var) || DECL_NONLOCAL (var))
+ 	return var;
        new_var = create_artificial_label (DECL_SOURCE_LOCATION (var));
        DECL_CONTEXT (new_var) = current_function_decl;
        insert_decl_map (&ctx->cb, var, new_var);
*************** scan_sharing_clauses (tree clauses, omp_
*** 2061,2073 ****
  	  /* Global variables with "omp declare target" attribute
  	     don't need to be copied, the receiver side will use them
  	     directly.  However, global variables with "omp declare target link"
! 	     attribute need to be copied.  */
  	  if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
  	      && DECL_P (decl)
  	      && ((OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_FIRSTPRIVATE_POINTER
  		   && (OMP_CLAUSE_MAP_KIND (c)
  		       != GOMP_MAP_FIRSTPRIVATE_REFERENCE))
  		  || TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE)
  	      && is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))
  	      && varpool_node::get_create (decl)->offloadable
  	      && !lookup_attribute ("omp declare target link",
--- 2063,2078 ----
  	  /* Global variables with "omp declare target" attribute
  	     don't need to be copied, the receiver side will use them
  	     directly.  However, global variables with "omp declare target link"
! 	     attribute need to be copied.  Or when ALWAYS modifier is used.  */
  	  if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
  	      && DECL_P (decl)
  	      && ((OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_FIRSTPRIVATE_POINTER
  		   && (OMP_CLAUSE_MAP_KIND (c)
  		       != GOMP_MAP_FIRSTPRIVATE_REFERENCE))
  		  || TREE_CODE (TREE_TYPE (decl)) == ARRAY_TYPE)
+ 	      && OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_ALWAYS_TO
+ 	      && OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_ALWAYS_FROM
+ 	      && OMP_CLAUSE_MAP_KIND (c) != GOMP_MAP_ALWAYS_TOFROM
  	      && is_global_var (maybe_lookup_decl_in_outer_ctx (decl, ctx))
  	      && varpool_node::get_create (decl)->offloadable
  	      && !lookup_attribute ("omp declare target link",
*************** build_omp_barrier (tree lhs)
*** 4077,4082 ****
--- 4082,4124 ----
    return g;
  }
  
+ /* Remove omp_member_access_dummy_var variables from gimple_bind_vars
+    of BIND if in a method.  */
+ 
+ static void
+ maybe_remove_omp_member_access_dummy_vars (gbind *bind)
+ {
+   if (DECL_ARGUMENTS (current_function_decl)
+       && DECL_ARTIFICIAL (DECL_ARGUMENTS (current_function_decl))
+       && (TREE_CODE (TREE_TYPE (DECL_ARGUMENTS (current_function_decl)))
+ 	  == POINTER_TYPE))
+     {
+       tree vars = gimple_bind_vars (bind);
+       for (tree *pvar = &vars; *pvar; )
+ 	if (omp_member_access_dummy_var (*pvar))
+ 	  *pvar = DECL_CHAIN (*pvar);
+ 	else
+ 	  pvar = &DECL_CHAIN (*pvar);
+       gimple_bind_set_vars (bind, vars);
+     }
+ }
+ 
+ /* Remove omp_member_access_dummy_var variables from BLOCK_VARS of
+    block and its subblocks.  */
+ 
+ static void
+ remove_member_access_dummy_vars (tree block)
+ {
+   for (tree *pvar = &BLOCK_VARS (block); *pvar; )
+     if (omp_member_access_dummy_var (*pvar))
+       *pvar = DECL_CHAIN (*pvar);
+     else
+       pvar = &DECL_CHAIN (*pvar);
+ 
+   for (block = BLOCK_SUBBLOCKS (block); block; block = BLOCK_CHAIN (block))
+     remove_member_access_dummy_vars (block);
+ }
+ 
  /* If a context was created for STMT when it was scanned, return it.  */
  
  static omp_context *
*************** expand_omp_simd (struct omp_region *regi
*** 10651,10674 ****
  	      tree itype2 = TREE_TYPE (fd->loops[i - 1].v);
  	      if (POINTER_TYPE_P (itype2))
  		itype2 = signed_type_for (itype2);
  	      t = build3 (COND_EXPR, itype2,
  			  build2 (fd->loops[i].cond_code, boolean_type_node,
  				  fd->loops[i].v,
  				  fold_convert (itype, fd->loops[i].n2)),
! 			  build_int_cst (itype2, 0),
! 			  fold_convert (itype2, fd->loops[i - 1].step));
  	      if (POINTER_TYPE_P (TREE_TYPE (fd->loops[i - 1].v)))
  		t = fold_build_pointer_plus (fd->loops[i - 1].v, t);
  	      else
  		t = fold_build2 (PLUS_EXPR, itype2, fd->loops[i - 1].v, t);
  	      expand_omp_build_assign (&gsi, fd->loops[i - 1].v, t);
  
  	      t = build3 (COND_EXPR, itype,
  			  build2 (fd->loops[i].cond_code, boolean_type_node,
  				  fd->loops[i].v,
  				  fold_convert (itype, fd->loops[i].n2)),
! 			  fd->loops[i].v,
! 			  fold_convert (itype, fd->loops[i].n1));
  	      expand_omp_build_assign (&gsi, fd->loops[i].v, t);
  	    }
  	}
--- 10693,10720 ----
  	      tree itype2 = TREE_TYPE (fd->loops[i - 1].v);
  	      if (POINTER_TYPE_P (itype2))
  		itype2 = signed_type_for (itype2);
+ 	      t = fold_convert (itype2, fd->loops[i - 1].step);
+ 	      t = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE, true,
+ 					    GSI_SAME_STMT);
  	      t = build3 (COND_EXPR, itype2,
  			  build2 (fd->loops[i].cond_code, boolean_type_node,
  				  fd->loops[i].v,
  				  fold_convert (itype, fd->loops[i].n2)),
! 			  build_int_cst (itype2, 0), t);
  	      if (POINTER_TYPE_P (TREE_TYPE (fd->loops[i - 1].v)))
  		t = fold_build_pointer_plus (fd->loops[i - 1].v, t);
  	      else
  		t = fold_build2 (PLUS_EXPR, itype2, fd->loops[i - 1].v, t);
  	      expand_omp_build_assign (&gsi, fd->loops[i - 1].v, t);
  
+ 	      t = fold_convert (itype, fd->loops[i].n1);
+ 	      t = force_gimple_operand_gsi (&gsi, t, true, NULL_TREE, true,
+ 					    GSI_SAME_STMT);
  	      t = build3 (COND_EXPR, itype,
  			  build2 (fd->loops[i].cond_code, boolean_type_node,
  				  fd->loops[i].v,
  				  fold_convert (itype, fd->loops[i].n2)),
! 			  fd->loops[i].v, t);
  	      expand_omp_build_assign (&gsi, fd->loops[i].v, t);
  	    }
  	}
*************** lower_omp_for (gimple_stmt_iterator *gsi
*** 15175,15184 ****
--- 15221,15234 ----
        rhs_p = gimple_omp_for_initial_ptr (stmt, i);
        if (!is_gimple_min_invariant (*rhs_p))
  	*rhs_p = get_formal_tmp_var (*rhs_p, &body);
+       else if (TREE_CODE (*rhs_p) == ADDR_EXPR)
+ 	recompute_tree_invariant_for_addr_expr (*rhs_p);
  
        rhs_p = gimple_omp_for_final_ptr (stmt, i);
        if (!is_gimple_min_invariant (*rhs_p))
  	*rhs_p = get_formal_tmp_var (*rhs_p, &body);
+       else if (TREE_CODE (*rhs_p) == ADDR_EXPR)
+ 	recompute_tree_invariant_for_addr_expr (*rhs_p);
  
        rhs_p = &TREE_OPERAND (gimple_omp_for_incr (stmt, i), 1);
        if (!is_gimple_min_invariant (*rhs_p))
*************** lower_omp_for (gimple_stmt_iterator *gsi
*** 15244,15249 ****
--- 15294,15300 ----
    pop_gimplify_context (new_stmt);
  
    gimple_bind_append_vars (new_stmt, ctx->block_vars);
+   maybe_remove_omp_member_access_dummy_vars (new_stmt);
    BLOCK_VARS (block) = gimple_bind_vars (new_stmt);
    if (BLOCK_VARS (block))
      TREE_USED (block) = 1;
*************** create_task_copyfn (gomp_task *task_stmt
*** 15342,15347 ****
--- 15393,15399 ----
    splay_tree_node n;
    struct omp_taskcopy_context tcctx;
    location_t loc = gimple_location (task_stmt);
+   size_t looptempno = 0;
  
    child_fn = gimple_omp_task_copy_fn (task_stmt);
    child_cfun = DECL_STRUCT_FUNCTION (child_fn);
*************** create_task_copyfn (gomp_task *task_stmt
*** 15455,15460 ****
--- 15507,15521 ----
  	t = build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src);
  	append_to_statement_list (t, &list);
  	break;
+       case OMP_CLAUSE__LOOPTEMP_:
+ 	/* Fields for first two _looptemp_ clauses are initialized by
+ 	   GOMP_taskloop*, the rest are handled like firstprivate.  */
+         if (looptempno < 2)
+ 	  {
+ 	    looptempno++;
+ 	    break;
+ 	  }
+ 	/* FALLTHRU */
        case OMP_CLAUSE_FIRSTPRIVATE:
  	decl = OMP_CLAUSE_DECL (c);
  	if (is_variable_sized (decl))
*************** create_task_copyfn (gomp_task *task_stmt
*** 15480,15486 ****
  	  src = decl;
  	dst = build_simple_mem_ref_loc (loc, arg);
  	dst = omp_build_component_ref (dst, f);
! 	t = lang_hooks.decls.omp_clause_copy_ctor (c, dst, src);
  	append_to_statement_list (t, &list);
  	break;
        case OMP_CLAUSE_PRIVATE:
--- 15541,15550 ----
  	  src = decl;
  	dst = build_simple_mem_ref_loc (loc, arg);
  	dst = omp_build_component_ref (dst, f);
! 	if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE__LOOPTEMP_)
! 	  t = build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src);
! 	else
! 	  t = lang_hooks.decls.omp_clause_copy_ctor (c, dst, src);
  	append_to_statement_list (t, &list);
  	break;
        case OMP_CLAUSE_PRIVATE:
*************** lower_omp_taskreg (gimple_stmt_iterator
*** 15694,15699 ****
--- 15758,15764 ----
    /* Declare all the variables created by mapping and the variables
       declared in the scope of the parallel body.  */
    record_vars_into (ctx->block_vars, child_fn);
+   maybe_remove_omp_member_access_dummy_vars (par_bind);
    record_vars_into (gimple_bind_vars (par_bind), child_fn);
  
    if (ctx->record_type)
*************** lower_omp_target (gimple_stmt_iterator *
*** 16062,16067 ****
--- 16127,16133 ----
        /* Declare all the variables created by mapping and the variables
  	 declared in the scope of the target body.  */
        record_vars_into (ctx->block_vars, child_fn);
+       maybe_remove_omp_member_access_dummy_vars (tgt_bind);
        record_vars_into (gimple_bind_vars (tgt_bind), child_fn);
      }
  
*************** lower_omp_1 (gimple_stmt_iterator *gsi_p
*** 17050,17055 ****
--- 17116,17122 ----
        break;
      case GIMPLE_BIND:
        lower_omp (gimple_bind_body_ptr (as_a <gbind *> (stmt)), ctx);
+       maybe_remove_omp_member_access_dummy_vars (as_a <gbind *> (stmt));
        break;
      case GIMPLE_OMP_PARALLEL:
      case GIMPLE_OMP_TASK:
*************** execute_lower_omp (void)
*** 17947,17952 ****
--- 18014,18029 ----
        all_contexts = NULL;
      }
    BITMAP_FREE (task_shared_vars);
+ 
+   /* If current function is a method, remove artificial dummy VAR_DECL created
+      for non-static data member privatization, they aren't needed for
+      debuginfo nor anything else, have been already replaced everywhere in the
+      IL and cause problems with LTO.  */
+   if (DECL_ARGUMENTS (current_function_decl)
+       && DECL_ARTIFICIAL (DECL_ARGUMENTS (current_function_decl))
+       && (TREE_CODE (TREE_TYPE (DECL_ARGUMENTS (current_function_decl)))
+ 	  == POINTER_TYPE))
+     remove_member_access_dummy_vars (DECL_INITIAL (current_function_decl));
    return 0;
  }
  
*************** diagnose_sb_0 (gimple_stmt_iterator *gsi
*** 18027,18033 ****
      }
    if (kind == NULL)
      {
!       gcc_checking_assert (flag_openmp);
        kind = "OpenMP";
      }
  
--- 18104,18110 ----
      }
    if (kind == NULL)
      {
!       gcc_checking_assert (flag_openmp || flag_openmp_simd);
        kind = "OpenMP";
      }
  
*************** public:
*** 18446,18452 ****
    /* opt_pass methods: */
    virtual bool gate (function *)
    {
!     return flag_cilkplus || flag_openacc || flag_openmp;
    }
    virtual unsigned int execute (function *)
      {
--- 18523,18529 ----
    /* opt_pass methods: */
    virtual bool gate (function *)
    {
!     return flag_cilkplus || flag_openacc || flag_openmp || flag_openmp_simd;
    }
    virtual unsigned int execute (function *)
      {
diff -Nrcpad gcc-6.4.0/gcc/opts-common.c gcc-6.5.0/gcc/opts-common.c
*** gcc-6.4.0/gcc/opts-common.c	Thu Jun 30 14:39:10 2016
--- gcc-6.5.0/gcc/opts-common.c	Fri Sep 15 09:19:36 2017
*************** handle_option (struct gcc_options *opts,
*** 986,992 ****
        {
  	if (!handlers->handlers[i].handler (opts, opts_set, decoded,
  					    lang_mask, kind, loc,
! 					    handlers, dc))
  	  return false;
        }
    
--- 986,993 ----
        {
  	if (!handlers->handlers[i].handler (opts, opts_set, decoded,
  					    lang_mask, kind, loc,
! 					    handlers, dc,
! 					    handlers->target_option_override_hook))
  	  return false;
        }
    
diff -Nrcpad gcc-6.4.0/gcc/opts-global.c gcc-6.5.0/gcc/opts-global.c
*** gcc-6.4.0/gcc/opts-global.c	Tue Feb 16 23:12:19 2016
--- gcc-6.5.0/gcc/opts-global.c	Fri Sep 15 09:19:36 2017
*************** lang_handle_option (struct gcc_options *
*** 167,173 ****
  		    unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
  		    location_t loc,
  		    const struct cl_option_handlers *handlers,
! 		    diagnostic_context *dc)
  {
    gcc_assert (opts == &global_options);
    gcc_assert (opts_set == &global_options_set);
--- 167,174 ----
  		    unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
  		    location_t loc,
  		    const struct cl_option_handlers *handlers,
! 		    diagnostic_context *dc,
! 		    void (*) (void))
  {
    gcc_assert (opts == &global_options);
    gcc_assert (opts_set == &global_options_set);
*************** decode_cmdline_options_to_array_default_
*** 267,276 ****
  /* Set *HANDLERS to the default set of option handlers for use in the
     compilers proper (not the driver).  */
  void
! set_default_handlers (struct cl_option_handlers *handlers)
  {
    handlers->unknown_option_callback = unknown_option_callback;
    handlers->wrong_lang_callback = complain_wrong_lang;
    handlers->num_handlers = 3;
    handlers->handlers[0].handler = lang_handle_option;
    handlers->handlers[0].mask = initial_lang_mask;
--- 268,279 ----
  /* Set *HANDLERS to the default set of option handlers for use in the
     compilers proper (not the driver).  */
  void
! set_default_handlers (struct cl_option_handlers *handlers,
! 		      void (*target_option_override_hook) (void))
  {
    handlers->unknown_option_callback = unknown_option_callback;
    handlers->wrong_lang_callback = complain_wrong_lang;
+   handlers->target_option_override_hook = target_option_override_hook;
    handlers->num_handlers = 3;
    handlers->handlers[0].handler = lang_handle_option;
    handlers->handlers[0].mask = initial_lang_mask;
*************** void
*** 288,294 ****
  decode_options (struct gcc_options *opts, struct gcc_options *opts_set,
  		struct cl_decoded_option *decoded_options,
  		unsigned int decoded_options_count,
! 		location_t loc, diagnostic_context *dc)
  {
    struct cl_option_handlers handlers;
  
--- 291,298 ----
  decode_options (struct gcc_options *opts, struct gcc_options *opts_set,
  		struct cl_decoded_option *decoded_options,
  		unsigned int decoded_options_count,
! 		location_t loc, diagnostic_context *dc,
! 		void (*target_option_override_hook) (void))
  {
    struct cl_option_handlers handlers;
  
*************** decode_options (struct gcc_options *opts
*** 296,302 ****
  
    lang_mask = initial_lang_mask;
  
!   set_default_handlers (&handlers);
  
    default_options_optimization (opts, opts_set,
  				decoded_options, decoded_options_count,
--- 300,306 ----
  
    lang_mask = initial_lang_mask;
  
!   set_default_handlers (&handlers, target_option_override_hook);
  
    default_options_optimization (opts, opts_set,
  				decoded_options, decoded_options_count,
diff -Nrcpad gcc-6.4.0/gcc/opts.c gcc-6.5.0/gcc/opts.c
*** gcc-6.4.0/gcc/opts.c	Thu Mar 17 15:11:35 2016
--- gcc-6.5.0/gcc/opts.c	Wed Mar  7 09:49:47 2018
*************** target_handle_option (struct gcc_options
*** 216,222 ****
  		      unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
  		      location_t loc,
  		      const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED,
! 		      diagnostic_context *dc)
  {
    gcc_assert (dc == global_dc);
    gcc_assert (kind == DK_UNSPECIFIED);
--- 216,222 ----
  		      unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
  		      location_t loc,
  		      const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED,
! 		      diagnostic_context *dc, void (*) (void))
  {
    gcc_assert (dc == global_dc);
    gcc_assert (kind == DK_UNSPECIFIED);
*************** finish_options (struct gcc_options *opts
*** 972,977 ****
--- 972,997 ----
        opts->x_flag_aggressive_loop_optimizations = 0;
        opts->x_flag_strict_overflow = 0;
      }
+ 
+   /* Comes from final.c -- no real reason to change it.  */
+ #define MAX_CODE_ALIGN 16
+ #define MAX_CODE_ALIGN_VALUE (1 << MAX_CODE_ALIGN)
+ 
+   if (opts->x_align_loops > MAX_CODE_ALIGN_VALUE)
+     error_at (loc, "-falign-loops=%d is not between 0 and %d",
+ 	      opts->x_align_loops, MAX_CODE_ALIGN_VALUE);
+ 
+   if (opts->x_align_jumps > MAX_CODE_ALIGN_VALUE)
+     error_at (loc, "-falign-jumps=%d is not between 0 and %d",
+ 	      opts->x_align_jumps, MAX_CODE_ALIGN_VALUE);
+ 
+   if (opts->x_align_functions > MAX_CODE_ALIGN_VALUE)
+     error_at (loc, "-falign-functions=%d is not between 0 and %d",
+ 	      opts->x_align_functions, MAX_CODE_ALIGN_VALUE);
+ 
+   if (opts->x_align_labels > MAX_CODE_ALIGN_VALUE)
+     error_at (loc, "-falign-labels=%d is not between 0 and %d",
+ 	      opts->x_align_labels, MAX_CODE_ALIGN_VALUE);
  }
  
  #define LEFT_COLUMN	27
*************** common_handle_option (struct gcc_options
*** 1543,1549 ****
  		      unsigned int lang_mask, int kind ATTRIBUTE_UNUSED,
  		      location_t loc,
  		      const struct cl_option_handlers *handlers,
! 		      diagnostic_context *dc)
  {
    size_t scode = decoded->opt_index;
    const char *arg = decoded->arg;
--- 1563,1570 ----
  		      unsigned int lang_mask, int kind ATTRIBUTE_UNUSED,
  		      location_t loc,
  		      const struct cl_option_handlers *handlers,
! 		      diagnostic_context *dc,
! 		      void (*target_option_override_hook) (void))
  {
    size_t scode = decoded->opt_index;
    const char *arg = decoded->arg;
*************** common_handle_option (struct gcc_options
*** 1570,1575 ****
--- 1591,1597 ----
  	undoc_mask = ((opts->x_verbose_flag | opts->x_extra_warnings)
  		      ? 0
  		      : CL_UNDOCUMENTED);
+ 	target_option_override_hook ();
  	/* First display any single language specific options.  */
  	for (i = 0; i < cl_lang_count; i++)
  	  print_specific_help
*************** common_handle_option (struct gcc_options
*** 1589,1594 ****
--- 1611,1617 ----
        if (lang_mask == CL_DRIVER)
  	break;
  
+       target_option_override_hook ();
        print_specific_help (CL_TARGET, CL_UNDOCUMENTED, 0, opts, lang_mask);
        opts->x_exit_after_options = true;
        break;
*************** common_handle_option (struct gcc_options
*** 1710,1717 ****
  	  }
  
  	if (include_flags)
! 	  print_specific_help (include_flags, exclude_flags, 0, opts,
! 			       lang_mask);
  	opts->x_exit_after_options = true;
  	break;
        }
--- 1733,1743 ----
  	  }
  
  	if (include_flags)
! 	  {
! 	    target_option_override_hook ();
! 	    print_specific_help (include_flags, exclude_flags, 0, opts,
! 				 lang_mask);
! 	  }
  	opts->x_exit_after_options = true;
  	break;
        }
diff -Nrcpad gcc-6.4.0/gcc/opts.h gcc-6.5.0/gcc/opts.h
*** gcc-6.4.0/gcc/opts.h	Thu Jun 30 14:39:10 2016
--- gcc-6.5.0/gcc/opts.h	Fri Sep 15 09:19:36 2017
*************** struct cl_option_handler_func
*** 267,273 ****
  		   const struct cl_decoded_option *decoded,
  		   unsigned int lang_mask, int kind, location_t loc,
  		   const struct cl_option_handlers *handlers,
! 		   diagnostic_context *dc);
  
    /* The mask that must have some bit in common with the flags for the
       option for this particular handler to be used.  */
--- 267,274 ----
  		   const struct cl_decoded_option *decoded,
  		   unsigned int lang_mask, int kind, location_t loc,
  		   const struct cl_option_handlers *handlers,
! 		   diagnostic_context *dc,
! 		   void (*target_option_override_hook) (void));
  
    /* The mask that must have some bit in common with the flags for the
       option for this particular handler to be used.  */
*************** struct cl_option_handlers
*** 289,294 ****
--- 290,298 ----
    void (*wrong_lang_callback) (const struct cl_decoded_option *decoded,
  			       unsigned int lang_mask);
  
+   /* Target option override hook.  */
+   void (*target_option_override_hook) (void);
+ 
    /* The number of individual handlers.  */
    size_t num_handlers;
  
*************** extern void decode_cmdline_options_to_ar
*** 333,345 ****
  							  const char **argv, 
  							  struct cl_decoded_option **decoded_options,
  							  unsigned int *decoded_options_count);
! extern void set_default_handlers (struct cl_option_handlers *handlers);
  extern void decode_options (struct gcc_options *opts,
  			    struct gcc_options *opts_set,
  			    struct cl_decoded_option *decoded_options,
  			    unsigned int decoded_options_count,
  			    location_t loc,
! 			    diagnostic_context *dc);
  extern int option_enabled (int opt_idx, void *opts);
  extern bool get_option_state (struct gcc_options *, int,
  			      struct cl_option_state *);
--- 337,351 ----
  							  const char **argv, 
  							  struct cl_decoded_option **decoded_options,
  							  unsigned int *decoded_options_count);
! extern void set_default_handlers (struct cl_option_handlers *handlers,
! 				  void (*target_option_override_hook) (void));
  extern void decode_options (struct gcc_options *opts,
  			    struct gcc_options *opts_set,
  			    struct cl_decoded_option *decoded_options,
  			    unsigned int decoded_options_count,
  			    location_t loc,
! 			    diagnostic_context *dc,
! 			    void (*target_option_override_hook) (void));
  extern int option_enabled (int opt_idx, void *opts);
  extern bool get_option_state (struct gcc_options *, int,
  			      struct cl_option_state *);
*************** extern bool common_handle_option (struct
*** 384,397 ****
  				  unsigned int lang_mask, int kind,
  				  location_t loc,
  				  const struct cl_option_handlers *handlers,
! 				  diagnostic_context *dc);
  extern bool target_handle_option (struct gcc_options *opts,
  				  struct gcc_options *opts_set,
  				  const struct cl_decoded_option *decoded,
  				  unsigned int lang_mask, int kind,
  				  location_t loc,
  				  const struct cl_option_handlers *handlers,
! 				  diagnostic_context *dc);
  extern void finish_options (struct gcc_options *opts,
  			    struct gcc_options *opts_set,
  			    location_t loc);
--- 390,405 ----
  				  unsigned int lang_mask, int kind,
  				  location_t loc,
  				  const struct cl_option_handlers *handlers,
! 				  diagnostic_context *dc,
! 				  void (*target_option_override_hook) (void));
  extern bool target_handle_option (struct gcc_options *opts,
  				  struct gcc_options *opts_set,
  				  const struct cl_decoded_option *decoded,
  				  unsigned int lang_mask, int kind,
  				  location_t loc,
  				  const struct cl_option_handlers *handlers,
! 				  diagnostic_context *dc,
! 				  void (*target_option_override_hook) (void));
  extern void finish_options (struct gcc_options *opts,
  			    struct gcc_options *opts_set,
  			    location_t loc);
diff -Nrcpad gcc-6.4.0/gcc/po/ChangeLog gcc-6.5.0/gcc/po/ChangeLog
*** gcc-6.4.0/gcc/po/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/po/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gcc/postreload.c gcc-6.5.0/gcc/postreload.c
*** gcc-6.4.0/gcc/postreload.c	Mon Jan  9 09:58:54 2017
--- gcc-6.5.0/gcc/postreload.c	Mon Jun 25 17:34:55 2018
*************** reload_combine_recognize_pattern (rtx_in
*** 1166,1176 ****
  	     value in PREV, the constant loading instruction.  */
  	  validate_change (prev, &SET_DEST (prev_set), index_reg, 1);
  	  if (reg_state[regno].offset != const0_rtx)
! 	    validate_change (prev,
! 			     &SET_SRC (prev_set),
! 			     GEN_INT (INTVAL (SET_SRC (prev_set))
! 				      + INTVAL (reg_state[regno].offset)),
! 			     1);
  
  	  /* Now for every use of REG that we have recorded, replace REG
  	     with REG_SUM.  */
--- 1166,1178 ----
  	     value in PREV, the constant loading instruction.  */
  	  validate_change (prev, &SET_DEST (prev_set), index_reg, 1);
  	  if (reg_state[regno].offset != const0_rtx)
! 	    {
! 	      HOST_WIDE_INT c
! 		= trunc_int_for_mode (UINTVAL (SET_SRC (prev_set))
! 				      + UINTVAL (reg_state[regno].offset),
! 				      GET_MODE (index_reg));
! 	      validate_change (prev, &SET_SRC (prev_set), GEN_INT (c), 1);
! 	    }
  
  	  /* Now for every use of REG that we have recorded, replace REG
  	     with REG_SUM.  */
diff -Nrcpad gcc-6.4.0/gcc/rtlanal.c gcc-6.5.0/gcc/rtlanal.c
*** gcc-6.4.0/gcc/rtlanal.c	Wed Dec  7 23:00:40 2016
--- gcc-6.5.0/gcc/rtlanal.c	Tue Jan 16 16:30:43 2018
*************** dead_or_set_regno_p (const_rtx insn, uns
*** 2064,2070 ****
    if (GET_CODE (pattern) == COND_EXEC)
      return 0;
  
!   if (GET_CODE (pattern) == SET)
      return covers_regno_p (SET_DEST (pattern), test_regno);
    else if (GET_CODE (pattern) == PARALLEL)
      {
--- 2064,2070 ----
    if (GET_CODE (pattern) == COND_EXEC)
      return 0;
  
!   if (GET_CODE (pattern) == SET || GET_CODE (pattern) == CLOBBER)
      return covers_regno_p (SET_DEST (pattern), test_regno);
    else if (GET_CODE (pattern) == PARALLEL)
      {
diff -Nrcpad gcc-6.4.0/gcc/sched-deps.c gcc-6.5.0/gcc/sched-deps.c
*** gcc-6.4.0/gcc/sched-deps.c	Fri May 20 15:38:24 2016
--- gcc-6.5.0/gcc/sched-deps.c	Mon Jun 25 17:19:13 2018
*************** sched_macro_fuse_insns (rtx_insn *insn)
*** 2850,2858 ****
      {
        rtx insn_set = single_set (insn);
  
        prev = prev_nonnote_nondebug_insn (insn);
        if (!prev
-           || !insn_set
            || !single_set (prev))
          return;
  
--- 2850,2860 ----
      {
        rtx insn_set = single_set (insn);
  
+       if (!insn_set)
+ 	return;
+ 
        prev = prev_nonnote_nondebug_insn (insn);
        if (!prev
            || !single_set (prev))
          return;
  
*************** sched_analyze_insn (struct deps_desc *de
*** 2919,2924 ****
--- 2921,2928 ----
  	= alloc_INSN_LIST (insn, deps->sched_before_next_jump);
  
        /* Make sure epilogue insn is scheduled after preceding jumps.  */
+       add_dependence_list (insn, deps->last_pending_memory_flush, 1,
+ 			   REG_DEP_ANTI, true);
        add_dependence_list (insn, deps->pending_jump_insns, 1, REG_DEP_ANTI,
  			   true);
      }
diff -Nrcpad gcc-6.4.0/gcc/shrink-wrap.c gcc-6.5.0/gcc/shrink-wrap.c
*** gcc-6.4.0/gcc/shrink-wrap.c	Tue Jan 19 13:21:04 2016
--- gcc-6.5.0/gcc/shrink-wrap.c	Mon Jun 25 17:43:41 2018
*************** move_insn_for_shrink_wrap (basic_block b
*** 154,160 ****
  			   struct dead_debug_local *debug)
  {
    rtx set, src, dest;
!   bitmap live_out, live_in, bb_uses, bb_defs;
    unsigned int i, dregno, end_dregno;
    unsigned int sregno = FIRST_PSEUDO_REGISTER;
    unsigned int end_sregno = FIRST_PSEUDO_REGISTER;
--- 154,160 ----
  			   struct dead_debug_local *debug)
  {
    rtx set, src, dest;
!   bitmap live_out, live_in, bb_uses = NULL, bb_defs = NULL;
    unsigned int i, dregno, end_dregno;
    unsigned int sregno = FIRST_PSEUDO_REGISTER;
    unsigned int end_sregno = FIRST_PSEUDO_REGISTER;
*************** move_insn_for_shrink_wrap (basic_block b
*** 327,334 ****
        /* Check whether BB uses DEST or clobbers DEST.  We need to add
  	 INSN to BB if so.  Either way, DEST is no longer live on entry,
  	 except for any part that overlaps SRC (next loop).  */
!       bb_uses = &DF_LR_BB_INFO (bb)->use;
!       bb_defs = &DF_LR_BB_INFO (bb)->def;
        if (df_live)
  	{
  	  for (i = dregno; i < end_dregno; i++)
--- 327,337 ----
        /* Check whether BB uses DEST or clobbers DEST.  We need to add
  	 INSN to BB if so.  Either way, DEST is no longer live on entry,
  	 except for any part that overlaps SRC (next loop).  */
!       if (!*split_p)
! 	{
! 	  bb_uses = &DF_LR_BB_INFO (bb)->use;
! 	  bb_defs = &DF_LR_BB_INFO (bb)->def;
! 	}
        if (df_live)
  	{
  	  for (i = dregno; i < end_dregno; i++)
diff -Nrcpad gcc-6.4.0/gcc/simplify-rtx.c gcc-6.5.0/gcc/simplify-rtx.c
*** gcc-6.4.0/gcc/simplify-rtx.c	Tue Jun 27 17:11:01 2017
--- gcc-6.5.0/gcc/simplify-rtx.c	Mon Jun 25 17:13:04 2018
*************** simplify_binary_operation_1 (enum rtx_co
*** 3233,3239 ****
        if (CONST_INT_P (trueop1)
  	  && exact_log2 (UINTVAL (trueop1)) > 0)
  	return simplify_gen_binary (AND, mode, op0,
! 				    gen_int_mode (INTVAL (op1) - 1, mode));
        break;
  
      case MOD:
--- 3233,3240 ----
        if (CONST_INT_P (trueop1)
  	  && exact_log2 (UINTVAL (trueop1)) > 0)
  	return simplify_gen_binary (AND, mode, op0,
! 				    gen_int_mode (UINTVAL (trueop1) - 1,
! 						  mode));
        break;
  
      case MOD:
*************** simplify_const_relational_operation (enu
*** 5235,5268 ****
  	{
  	case LT:
  	  /* Optimize abs(x) < 0.0.  */
! 	  if (!HONOR_SNANS (mode)
! 	      && (!INTEGRAL_MODE_P (mode)
! 		  || (!flag_wrapv && !flag_trapv && flag_strict_overflow)))
! 	    {
! 	      if (INTEGRAL_MODE_P (mode)
! 		  && (issue_strict_overflow_warning
! 		      (WARN_STRICT_OVERFLOW_CONDITIONAL)))
! 		warning (OPT_Wstrict_overflow,
! 			 ("assuming signed overflow does not occur when "
! 			  "assuming abs (x) < 0 is false"));
! 	       return const0_rtx;
! 	    }
  	  break;
  
  	case GE:
  	  /* Optimize abs(x) >= 0.0.  */
! 	  if (!HONOR_NANS (mode)
! 	      && (!INTEGRAL_MODE_P (mode)
! 		  || (!flag_wrapv && !flag_trapv && flag_strict_overflow)))
! 	    {
! 	      if (INTEGRAL_MODE_P (mode)
! 	          && (issue_strict_overflow_warning
! 	    	  (WARN_STRICT_OVERFLOW_CONDITIONAL)))
! 	        warning (OPT_Wstrict_overflow,
! 			 ("assuming signed overflow does not occur when "
! 			  "assuming abs (x) >= 0 is true"));
! 	      return const_true_rtx;
! 	    }
  	  break;
  
  	case UNGE:
--- 5236,5249 ----
  	{
  	case LT:
  	  /* Optimize abs(x) < 0.0.  */
! 	  if (!INTEGRAL_MODE_P (mode) && !HONOR_SNANS (mode))
! 	    return const0_rtx;
  	  break;
  
  	case GE:
  	  /* Optimize abs(x) >= 0.0.  */
! 	  if (!INTEGRAL_MODE_P (mode) && !HONOR_NANS (mode))
! 	    return const_true_rtx;
  	  break;
  
  	case UNGE:
diff -Nrcpad gcc-6.4.0/gcc/stor-layout.c gcc-6.5.0/gcc/stor-layout.c
*** gcc-6.4.0/gcc/stor-layout.c	Mon Jun 27 18:25:58 2016
--- gcc-6.5.0/gcc/stor-layout.c	Mon Jun 25 17:21:47 2018
*************** place_field (record_layout_info rli, tre
*** 1519,1524 ****
--- 1519,1549 ----
  	= size_binop (PLUS_EXPR, rli->offset, DECL_SIZE_UNIT (field));
        rli->bitpos = bitsize_zero_node;
        rli->offset_align = MIN (rli->offset_align, desired_align);
+ 
+       if (!multiple_of_p (bitsizetype, DECL_SIZE (field),
+ 			  bitsize_int (rli->offset_align)))
+ 	{
+ 	  tree type = strip_array_types (TREE_TYPE (field));
+ 	  /* The above adjusts offset_align just based on the start of the
+ 	     field.  The field might not have a size that is a multiple of
+ 	     that offset_align though.  If the field is an array of fixed
+ 	     sized elements, assume there can be any multiple of those
+ 	     sizes.  If it is a variable length aggregate or array of
+ 	     variable length aggregates, assume worst that the end is
+ 	     just BITS_PER_UNIT aligned.  */
+ 	  if (TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST)
+ 	    {
+ 	      if (TREE_INT_CST_LOW (TYPE_SIZE (type)))
+ 		{
+ 		  unsigned HOST_WIDE_INT sz
+ 		    = TREE_INT_CST_LOW (TYPE_SIZE (type));
+ 		  sz = sz & -sz;
+ 		  rli->offset_align = MIN (rli->offset_align, sz);
+ 		}
+ 	    }
+ 	  else
+ 	    rli->offset_align = MIN (rli->offset_align, BITS_PER_UNIT);
+ 	}
      }
    else if (targetm.ms_bitfield_layout_p (rli->t))
      {
diff -Nrcpad gcc-6.4.0/gcc/symtab.c gcc-6.5.0/gcc/symtab.c
*** gcc-6.4.0/gcc/symtab.c	Thu Jun 22 11:14:49 2017
--- gcc-6.5.0/gcc/symtab.c	Wed Mar  7 09:45:44 2018
*************** along with GCC; see the file COPYING3.
*** 35,40 ****
--- 35,41 ----
  #include "output.h"
  #include "ipa-utils.h"
  #include "calls.h"
+ #include "builtins.h"
  
  static const char *ipa_ref_use_name[] = {"read","write","addr","alias","chkp"};
  
*************** symbol_table::symbol_suffix_separator ()
*** 2207,2209 ****
--- 2208,2265 ----
    return '_';
  #endif
  }
+ 
+ /* Return true if symbol should be output to the symbol table.  */
+ 
+ bool
+ symtab_node::output_to_lto_symbol_table_p (void)
+ {
+   /* Only externally visible symbols matter.  */
+   if (!TREE_PUBLIC (decl))
+     return false;
+   if (!real_symbol_p ())
+     return false;
+   /* FIXME: variables probably should not be considered as real symbols at
+      first place.  */
+   if (VAR_P (decl) && DECL_HARD_REGISTER (decl))
+     return false;
+   /* FIXME: Builtins corresponding to real functions probably should have
+      symbol table entries.  */
+   if (is_builtin_fn (decl))
+     return false;
+ 
+   /* We have real symbol that should be in symbol table.  However try to trim
+      down the refernces to libraries bit more because linker will otherwise
+      bring unnecesary object files into the final link.
+      FIXME: The following checks can easily be confused i.e. by self recursive
+      function or self-referring variable.  */
+ 
+   /* We keep external functions in symtab for sake of inlining
+      and devirtualization.  We do not want to see them in symbol table as
+      references unless they are really used.  */
+   cgraph_node *cnode = dyn_cast <cgraph_node *> (this);
+   if (cnode && (!definition || DECL_EXTERNAL (decl))
+       && cnode->callers)
+     return true;
+ 
+  /* Ignore all references from external vars initializers - they are not really
+     part of the compilation unit until they are used by folding.  Some symbols,
+     like references to external construction vtables can not be referred to at
+     all.  We decide this at can_refer_decl_in_current_unit_p.  */
+  if (!definition || DECL_EXTERNAL (decl))
+     {
+       int i;
+       struct ipa_ref *ref;
+       for (i = 0; iterate_referring (i, ref); i++)
+ 	{
+ 	  if (ref->use == IPA_REF_ALIAS)
+ 	    continue;
+           if (is_a <cgraph_node *> (ref->referring))
+ 	    return true;
+ 	  if (!DECL_EXTERNAL (ref->referring->decl))
+ 	    return true;
+ 	}
+       return false;
+     }
+   return true;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/ChangeLog gcc-6.5.0/gcc/testsuite/ChangeLog
*** gcc-6.4.0/gcc/testsuite/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gcc/testsuite/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,2078 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-23  Tom de Vries  <tdevries@suse.de>
+ 
+ 	backport from trunk:
+ 	2018-07-31  Tom de Vries  <tdevries@suse.de>
+ 
+ 	PR debug/86687
+ 	* g++.dg/guality/pr86687.C: New test.
+ 
+ 2018-10-17  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gcc.c-torture/execute/pr87623.c: New test.
+ 
+ 2018-10-15  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-08-23  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/87024
+ 	* gcc.dg/pr87024.c: New testcase.
+ 
+ 	2018-08-17  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/86505
+ 	* gcc.dg/torture/pr86505.c: New testcase.
+ 
+ 2018-10-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-10-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/87550
+ 	* gcc.target/i386/pr87550.c: New test.
+ 
+ 	2018-09-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/87248
+ 	* c-c++-common/torture/pr87248.c: New test.
+ 
+ 	2018-08-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/87065
+ 	* gcc.target/i386/pr87065.c: New test.
+ 
+ 	2018-07-24  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/86627
+ 	* gcc.target/i386/pr86627.c: New test.
+ 
+ 	2018-07-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/3698
+ 	PR c++/86208
+ 	* g++.dg/opt/pr3698.C: New test.
+ 
+ 2018-10-12  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR c++/54278
+ 	Backport from mainline
+ 	2017-03-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/80032
+ 	* g++.dg/opt/pr80032.C: New testcase.
+ 
+ 2018-09-07  Janus Weil  <janus@gcc.gnu.org>
+ 
+ 	Backported from trunk
+ 	PR fortran/86116
+ 	* gfortran.dg/generic_34.f90: New test case.
+ 
+ 2018-09-03  Tom de Vries  <tdevries@suse.de>
+ 
+ 	backport from trunk:
+ 	2018-06-21  Tom de Vries  <tdevries@suse.de>
+ 
+ 	PR tree-optimization/85859
+ 	* gcc.dg/pr85859.c: New test.
+ 
+ 2018-08-21  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-08-20  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/87014
+ 	* g++.dg/torture/pr87014.C: New file.
+ 
+ 2018-07-12  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR target/84829
+ 	* gcc.target/i386/pr84829.c: New testcase.
+ 
+ 2018-07-03  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/82969
+ 	PR fortran/86242
+ 	* gfortran.dg/proc_ptr_50.f90: New test.
+ 
+ 2018-06-26  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	Backported from mainline
+ 	2018-06-20  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	* gcc.target/powerpc/builtins-1.c: Add dg directive to scan
+ 	for vpkudus.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84786
+ 	* gcc.target/i386/avx512f-pr84786-3.c: New test.
+ 
+ 	Backported from mainline
+ 	2018-06-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/86210
+ 	* g++.dg/warn/Wnonnull4.C: New test.
+ 
+ 	PR tree-optimization/86231
+ 	* gcc.dg/tree-ssa/vrp119.c: New test.
+ 	* gcc.c-torture/execute/pr86231.c: New test.
+ 
+ 	2018-06-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/85878
+ 	* gfortran.fortran-torture/compile/pr85878.f90: New test.
+ 
+ 	2018-06-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/85945
+ 	* gcc.c-torture/compile/pr85945.c: New test.
+ 
+ 	2018-05-06  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/85659
+ 	* g++.dg/ext/asm14.C: New test.
+ 	* g++.dg/ext/asm15.C: New test.
+ 	* g++.dg/ext/asm16.C: New test.
+ 
+ 	2018-04-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/85300
+ 	* gcc.dg/pr85300.c: New test.
+ 
+ 	PR fortran/85313
+ 	* gfortran.dg/gomp/pr85313.f90: New test.
+ 
+ 	2018-04-07  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/85257
+ 	* gcc.dg/pr85257.c: New test.
+ 
+ 	2018-04-06  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/85252
+ 	* gcc.dg/debug/pr85252.c: New test.
+ 
+ 	2018-04-03  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/85167
+ 	* gcc.dg/pr85167.c: New test.
+ 
+ 	PR c++/85147
+ 	* g++.dg/cpp0x/pr85147.C: New test.
+ 
+ 	PR c++/85140
+ 	* g++.dg/cpp0x/gen-attrs-64.C: New test.
+ 
+ 	2018-03-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84791
+ 	* g++.dg/gomp/pr84791.C: New test.
+ 
+ 	2018-03-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/85076
+ 	* g++.dg/cpp1y/pr85076.C: New test.
+ 
+ 	PR c++/85068
+ 	* g++.dg/inherit/covariant22.C: New test.
+ 
+ 	2018-03-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR inline-asm/85034
+ 	* gcc.target/i386/pr85034.c: New test.
+ 
+ 	PR inline-asm/85022
+ 	* c-c++-common/torture/pr85022.c: New test.
+ 
+ 	2018-03-22  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR inline-asm/84941
+ 	* gcc.dg/pr84941.c: New test.
+ 
+ 	2018-03-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/84875
+ 	* gcc.dg/pr84875.c: New test.
+ 
+ 	PR c/84953
+ 	* gcc.dg/pr84953.c: New test.
+ 
+ 	2018-03-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84899
+ 	* gcc.dg/pr84899.c: New test.
+ 
+ 	PR c++/84874
+ 	* g++.dg/cpp1z/desig8.C: New test.
+ 
+ 	PR c++/84874
+ 	* g++.dg/cpp1z/desig7.C: New test.
+ 
+ 	2018-03-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/79085
+ 	* g++.dg/opt/pr79085.C: New test.
+ 
+ 	PR c++/84222
+ 	* g++.dg/warn/deprecated.C (T::member3): Change dg-warning to dg-bogus.
+ 	* g++.dg/warn/deprecated-6.C (T::member3): Likewise.
+ 	* g++.dg/warn/deprecated-13.C: New test.
+ 
+ 	2018-03-09  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84772
+ 	* gcc.dg/pr84772.c: New test.
+ 
+ 	2018-03-09  Jason Merrill  <jason@redhat.com>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84076
+ 	* g++.dg/warn/Wformat-2.C: New test.
+ 
+ 	2018-03-09  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84767
+ 	* g++.dg/ext/vla18.C: New test.
+ 
+ 	2018-03-08  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/84739
+ 	* gcc.dg/pr84739.c: New test.
+ 
+ 	2018-03-05  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/84700
+ 	* gcc.target/powerpc/pr84700.c: New test.
+ 
+ 	2018-03-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84662
+ 	* g++.dg/cpp1y/pr84662.C: New test.
+ 
+ 	PR inline-asm/84625
+ 	* gcc.target/i386/pr84625.c: New test.
+ 
+ 	PR sanitizer/70875
+ 	* gcc.dg/ubsan/bounds-3.c: Add -fno-sanitize-recover=bounds to
+ 	dg-options and dg-shouldfail "ubsan" directive.
+ 
+ 	2018-02-26  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84558
+ 	* g++.dg/cpp1y/pr84558.C: New test.
+ 
+ 	2018-02-19  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84448
+ 	* g++.dg/gomp/pr84448.C: New test.
+ 
+ 	2018-02-16  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR ipa/84425
+ 	* gcc.c-torture/compile/pr84425.c: New test.
+ 
+ 	2018-02-13  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/82210
+ 	* gcc.c-torture/execute/pr82210.c: New test.
+ 
+ 	2018-02-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/84341
+ 	* c-c++-common/gomp/pr84341.c: New test.
+ 
+ 	2018-02-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/83987
+ 	* g++.dg/ubsan/pr83987-2.C: New test.
+ 
+ 	2018-01-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/83986
+ 	* gcc.dg/pr83986.c: New test.
+ 
+ 	2018-01-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/83987
+ 	* g++.dg/ubsan/pr83987.C: New test.
+ 
+ 	2018-01-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/83930
+ 	* gcc.dg/pr83930.c: New test.
+ 
+ 	2018-01-18  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/83824
+ 	* g++.dg/cpp0x/pr83824.C: New test.
+ 
+ 	2018-01-05  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/83605
+ 	* gcc.dg/pr83605.c: New test.
+ 
+ 	2017-12-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/83553
+ 	* c-c++-common/torture/pr83553.c: New test.
+ 
+ 	2017-12-22  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/83550
+ 	* c-c++-common/dwarf2/pr83550.c: New test.
+ 
+ 	2017-12-21  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/80747
+ 	PR rtl-optimization/83512
+ 	* gcc.dg/pr80747.c: New test.
+ 	* gcc.dg/pr83512.c: New test.
+ 
+ 	PR tree-optimization/83523
+ 	* g++.dg/tree-ssa/pr83523.C: New test.
+ 
+ 	2017-12-21  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/83521
+ 	* gcc.dg/pr83521.c: New test.
+ 
+ 	2017-12-19  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR ipa/82801
+ 	PR ipa/83346
+ 	* g++.dg/ipa/pr82801.C: New test.
+ 
+ 	2017-12-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/79650
+ 	* g++.dg/template/pr79650.C: New test.
+ 
+ 	2017-12-08  Joseph Myers  <joseph@codesourcery.com>
+ 		    Alexander Monakov  <amonakov@ispras.ru>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/81906
+ 	* gcc.target/i386/pr81906.c: New test.
+ 
+ 	2017-12-06  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/80259
+ 	* g++.dg/cpp0x/pr80259.C: New test.
+ 
+ 	2017-12-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/81212
+ 	* g++.dg/ubsan/pr81212.C: New test.
+ 
+ 	PR target/78643
+ 	PR target/80583
+ 	* gcc.target/i386/pr80583.c: New test.
+ 
+ 	2017-11-29  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/80819
+ 	* gcc.target/i386/pr80819-1.c: New test.
+ 	* gcc.target/i386/pr80819-2.c: New test.
+ 
+ 	2017-11-24  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/83014
+ 	* gcc.dg/ubsan/pr83014.c: New test.
+ 
+ 	* gcc.dg/builtin-object-size-18.c: New test.
+ 
+ 	2017-11-23  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/82253
+ 	* gfortran.dg/pr82253.f90: New test.
+ 
+ 	2017-11-21  James Cowgill  <James.Cowgill@imgtec.com>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82880
+ 	* gcc.dg/opts-8.c: New test.
+ 
+ 	2017-11-21  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/83059
+ 	* c-c++-common/pr83059.c: New test.
+ 
+ 	2017-11-20  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/82781
+ 	* g++.dg/ext/constexpr-pr82781.C: New test.
+ 
+ 	2017-10-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/82159
+ 	* g++.dg/opt/pr82159-2.C: New test.
+ 
+ 	2017-09-29  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/82340
+ 	* gcc.dg/tree-ssa/pr82340.c: New test.
+ 
+ 	2017-09-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/82159
+ 	* g++.dg/opt/pr82159.C: New test.
+ 
+ 	2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR rtl-optimization/82192
+ 	* gcc.c-torture/execute/pr82192.c: New test.
+ 
+ 2018-06-23  Richard Sandiford  <richard.sandiford@linaro.org>
+ 
+ 	PR tree-optimization/85989
+ 	* gcc.dg/torture/pr85989.c: New test.
+ 
+ 2018-06-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-09-06  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82108
+ 	* gcc.dg/vect/pr82108.c: New testcase.
+ 
+ 	2017-06-18  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/81410
+ 	* gcc.dg/vect/pr81410.c: New testcase.
+ 
+ 	2017-03-08  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/79920
+ 	* gcc.dg/vect/pr79920.c: New testcase.
+ 
+ 2018-06-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-02-28  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/84607
+ 	* gcc.dg/pr84607.c: New testcase.
+ 
+ 	2018-05-04  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/85588
+ 	* gcc.dg/torture/pr85588.c: New testcase.
+ 	* gcc.dg/torture/pr57656.c: Use dg-additional-options.
+ 
+ 2018-06-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-08-21  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/81884
+ 	* g++.dg/torture/pr81884.C: New testcase.
+ 
+ 	2018-04-06  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/85244
+ 	* gcc.dg/torture/pr85244-1.c: New testcase.
+ 	* gcc.dg/torture/pr85244-2.c: Likewise.
+ 
+ 	* gcc.dg/tree-prof/pr66295.c: Remove unsupported dg-error scanning.
+ 
+ 2018-06-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-03-15  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR c/84873
+ 	* c-c++-common/pr84873.c: New testcase.
+ 
+ 	2018-05-02  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/85597
+ 	* gcc.dg/vect/pr85597.c: New testcase.
+ 
+ 2018-06-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-01-01  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/83623
+ 	* gcc.dg/pr83623.c: New test.
+ 
+ 	2017-09-26  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-09-20  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82264
+ 	* gcc.dg/torture/pr82264.c: New testcase.
+ 
+ 	2017-09-25  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82285
+ 	* gcc.dg/torture/pr82285.c: New testcase.
+ 
+ 	2017-11-24  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82402
+ 	* gcc.dg/torture/pr82402.c: New testcase.
+ 
+ 	2017-10-24  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82697
+ 	* gcc.dg/torture/pr82697.c: New testcase.
+ 
+ 	2017-11-02  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/82765
+ 	* gcc.dg/pr82765.c: New testcase.
+ 
+ 	2018-01-08  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/83713
+ 	* g++.dg/torture/pr83713.C: New testcase.
+ 
+ 2018-06-09  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85138
+ 	PR fortran/85996
+ 	PR fortran/86051
+ 	* gfortran.dg/pr85138_1.f90: New test.
+ 	* gfortran.dg/pr85138_2.f90: Ditto.
+ 	* gfortran.dg/pr85996.f90: Ditto.
+ 
+ 2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-06-05  Andreas Krebbel  <krebbel@linux.ibm.com>
+ 
+ 	* gcc.target/s390/htm-builtins-compile-4.c: New test.
+ 
+ 2018-06-02  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gnat.dg/discr53.ad[sb]: New test.
+ 	* gnat.dg/discr53_pkg.ads: New helper.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85895
+ 	Backport from trunk
+ 	* gfortran.dg/coarray_3.f90: Fix invalid testcase.
+ 	* gfortran.dg/pr85895.f90: New test.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85780
+ 	Backport from trunk
+ 	* gfortran.dg/pr85780.f90: New test.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85779
+ 	Backport from trunk
+ 	* gfortran.dg/pr85779_1.f90: New test.
+ 	* gfortran.dg/pr85779_2.f90: Ditto.
+ 	* gfortran.dg/pr85779_3.f90: Ditto.
+ 
+ 2018-05-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85543
+ 	Backport from trunk
+ 	* gfortran.dg/pr85543.f90: New test.
+ 
+ 2018-05-24  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* gcc.target/i386/avx512f-vcvtusi2sd64-1.c: Update scan string.
+ 	* gcc.target/i386/avx512f-vcvtusi2ss64-1.c: Ditto.
+ 
+ 2017-05-17  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/82814
+ 	Backport from trunk
+ 	* gfortran.dg/submodule_31.f08: New test.
+ 
+ 2018-05-16  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/83149
+ 	Backport from trunk
+ 	* gfortran.dg/pr83149_1.f90: New test.
+ 	* gfortran.dg/pr83149.f90: Additional source for previous.
+ 	* gfortran.dg/pr83149_b.f90: New test.
+ 	* gfortran.dg/pr83149_a.f90: Additional source for previous.
+ 
+ 2018-16-05  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/83898
+ 	Backport from trunk
+ 	* gfortran.dg/associate_33.f03 : New test.
+ 
+ 2018-05-13  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	PR fortran/68846
+ 	Backport from trunk
+ 	* gfortran.dg/temporary_3.f90 : New test.
+ 
+ 	PR fortran/70864
+ 	Backport from trunk
+ 	* gfortran.dg/temporary_2.f90 : New test.
+ 
+ 2018-05-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85542
+ 	Backport from trunk
+ 	* gfortran.dg/pr85542.f90: New test.
+ 
+ 2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/70870
+ 	Backport from trunk
+ 	* gfortran.dg/pr70870_1.f90: New test.
+ 
+ 2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85521
+ 	Backport from trunk
+ 	* gfortran.dg/pr85521_1.f90: New test.
+ 	* gfortran.dg/pr85521_2.f90: New test.
+ 
+ 2018-05-11  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85687
+ 	Backport from trunk
+ 	* gfortran.dg/pr85687.f90: new test.
+ 
+ 2018-05-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/83687
+ 	* gcc.target/arm/neon-combine-sub-abs-into-vabd.c: Delete integer
+ 	tests.
+ 	* gcc.target/arm/pr83687.c: New test.
+ 
+ 2018-05-06  Andre Vehreschild  <vehre@gcc.gnu.org>
+ 
+ 	PR fortran/85507
+ 	Backport from trunk.
+ 	* gfortran.dg/coarray_dependency_1.f90: New test.
+ 	* gfortran.dg/coarray_lib_comm_1.f90: Fix counting caf-expressions.
+ 
+ 2018-04-28  Andre Vehreschild  <vehre@gcc.gnu.org>
+ 
+ 	PR fortran/81773
+ 	PR fortran/83606
+ 	Backport from trunk.
+ 	* gfortran.dg/coarray/get_to_indexed_array_1.f90: New test.
+ 	* gfortran.dg/coarray/get_to_indirect_array.f90: New test.
+ 
+ 2018-04-25  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-04-10  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR lto/85248
+ 	* gcc.dg/lto/pr85248_0.c: New test.
+ 	* gcc.dg/lto/pr85248_1.c: New test.
+ 
+ 2018-04-24  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/85520
+ 	* gfortran.dg/pr85520.f90: New test.
+ 
+ 2018-04-23  Aaron Sawdey  <acsawdey@linux.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>
+ 
+ 	PR target/83660
+ 	* gcc.target/powerpc/pr83660.C: New test.
+ 
+ 2018-04-23  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* g++.dg/torture/pr85496.C: New test.
+ 
+ 2018-04-18  Thomas Preud'homme  <thomas.preudhomme@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-04-11  Thomas Preud'homme  <thomas.preudhomme@arm.com>
+ 
+ 	PR target/85261
+ 	* gcc.target/arm/fpscr.c: Add call to __builtin_arm_set_fpscr with
+ 	literal value.  Expect 2 MCR instruction.  Fix function prototype.
+ 	Remove volatile keyword.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-03-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/84574
+ 	* gcc.target/i386/ret-thunk-9.c: Expect __x86_return_thunk
+ 	label instead of __x86_indirect_thunk label.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/84039
+ 	* gcc.target/i386/indirect-thunk-1.c: Updated.
+ 	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-9.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-10.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-11.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-12.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-13.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-14.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-15.c: Likewise.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/84530
+ 	* gcc.target/i386/ret-thunk-22.c: New test.
+ 	* gcc.target/i386/ret-thunk-23.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-24.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-25.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-26.c: Likewise.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* gcc.target/i386/indirect-thunk-10.c: New test.
+ 	* gcc.target/i386/indirect-thunk-8.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-9.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-10.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-11.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-9.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-17.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-18.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-19.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-20.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-21.c: Likewise.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* gcc.target/i386/indirect-thunk-register-4.c: New test.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+ 	-mno-indirect-branch-register.
+ 	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-10.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-11.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-12.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-13.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-14.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-15.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-9.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-register-1.c: New test.
+ 	* gcc.target/i386/indirect-thunk-register-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* gcc.target/i386/indirect-thunk-1.c (dg-options): Add
+ 	-mfunction-return=keep.
+ 	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-1.c: New test.
+ 	* gcc.target/i386/ret-thunk-10.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-11.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-12.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-13.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-14.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-15.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-16.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-2.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-3.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-4.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-5.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-6.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-7.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-8.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-9.c: Likewise.
+ 
+ 	Backport from mainline
+ 	2018-01-15  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/83839
+ 	* gcc.target/i386/indirect-thunk-1.c: Scan for "push" only on
+ 	Linux.
+ 	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-register-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-register-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-register-4.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-10.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-11.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-12.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-13.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-14.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-15.c: Likewise.
+ 	* gcc.target/i386/ret-thunk-9.c: Don't check the
+ 	__x86_return_thunk label.
+ 	Scan for "push" only for Linux.
+ 
+ 2018-04-16  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-14  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	* gcc.target/i386/indirect-thunk-1.c: New test.
+ 	* gcc.target/i386/indirect-thunk-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-attr-8.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-bnd-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-1.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-2.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-3.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-4.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-5.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-6.c: Likewise.
+ 	* gcc.target/i386/indirect-thunk-inline-7.c: Likewise.
+ 
+ 2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-04-12  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	* gcc.target/s390/nobp-no-dwarf2-cfi.c: New test.
+ 
+ 2018-04-10  Thomas Schwinge  <thomas@codesourcery.com>
+ 
+ 	PR target/85056
+ 	* gcc.target/nvptx/pr85056.c (main): Initialize "sum".
+ 
+ 2018-04-10  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/84748
+ 	* gcc.c-torture/execute/pr84748.c: New test.
+ 
+ 2018-04-06  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* g++.dg/opt/pr85196.C: New test.
+ 
+ 2018-04-05  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/85193
+ 	* gcc.target/i386/pr85193.c: New test.
+ 
+ 2018-04-02  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/84912
+ 	* gcc.target/powerpc/extend-divide-1.c (div_weo): Remove test for
+ 	deleted builtin function.
+ 	(div_weuo): Likewise.
+ 	* gcc.target/powerpc/extend-divide-2.c (div_deo): Likewise.
+ 	(div_deuo): Likewise.
+ 
+ 2018-03-30  Cesar Philippidis  <cesar@codesourcery.com>
+ 
+ 	Backport from mainline
+ 	2018-03-27  Cesar Philippidis  <cesar@codesourcery.com>
+ 
+ 	* testsuite/gcc.target/nvptx/pr85056.c: New test.
+ 	* testsuite/gcc.target/nvptx/pr85056a.c: New test.
+ 
+ 2018-03-29  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	* gcc.target/arm/pr84826.c: Change dg-option to -fstack-check.
+ 
+ 	Backport from mainline
+ 	2018-03-23  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/84826
+ 	* gcc.target/arm/pr84826.c: Add dg directive.
+ 
+ 	Backport from mainline
+ 	2018-03-22  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/84826
+ 	* gcc.target/arm/pr84826.c: New test.
+ 
+ 2018-03-28  Carl Love  <cel@us.ibm.com>
+ 
+ 	* gcc.target/powerpc/crypto-builtin-1-runnable:  Add
+ 	p8vector_hw to dg-do run.
+ 
+ 2018-03-28  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	PR fortran/85084
+ 	Backport from trunk.
+ 	* frontend-passes.c (gfc_run_passes): Do not run front-end
+ 	optimizations if a previous error occurred.
+ 
+ 2018-03-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/85026
+ 	* g++.dg/pr85026.C: New test.
+ 
+ 2018-03-28  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2018-03-08  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR target/82411
+ 	* gcc.target/powerpc/ppc-sdata-2.c: Skip if -mno-readonly-in-sdata.
+ 
+ 2018-03-27  Carl Love  <cel@us.ibm.com>
+ 
+ 	* gcc.target/powerpc/crypto-builtin-1-runnable.c: New test file.
+ 
+ 2018-03-27  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	Backport from mainline:
+ 	2018-03-20  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/82989
+ 	* gcc.target/arm/pr82989.c: New test.
+ 
+ 	Backport from mainline:
+ 	2018-03-21  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/82989
+ 	* gcc.target/arm/pr82989.c: Change dg scan-assembly directives.
+ 
+ 2018-03-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-03-20  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/82518
+ 	* lib/target-supports.exp (check_effective_target_vect_load_lanes):
+ 	Disable for armeb targets.
+ 	* gcc.target/arm/pr82518.c: New test.
+ 
+ 2018-03-22  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	backport from trunk:
+ 	2018-03-22  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	PR tree-optimization/84956
+ 	* gcc.dg/pr84956.c: New test.
+ 
+ 2018-03-20  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	ChangeLog entry for r258698
+ 	PR fortran/85001
+ 	* gfortran.dg/interface_41.f90: New test.
+ 
+ 2018-03-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	PR fortran/84931
+ 	Backport from trunk
+ 	* gfortran.dg/array_constructor_52.f90: New test.
+ 
+ 2018-03-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/65453
+ 	* gfortran.dg/pr65453.f90: New test.
+ 
+ 2018-03-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83939
+ 	* gfortran.dg/pr83939.f90
+ 
+ 2018-03-10  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/84734
+ 	* gfortran.dg/pr84734.f90: New test.
+ 
+ 2018-03-10  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-01-04  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR ipa/82352
+ 	* g++.dg/ipa/pr82352.C (size_t): Define to __SIZE_TYPE__ instead of
+ 	long unsigned int.
+ 
+ 2018-03-08  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/64124
+ 	PR fortran/70409
+ 	* gfortran.dg/pr64124.f90: New tests.
+ 	* gfortran.dg/pr70409.f90: New tests.
+ 
+ 2018-03-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2016-12-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR debug/77844
+ 	* g++.dg/opt/pr77844.C: New test.
+ 
+ 2018-03-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-04  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR ipa/82352
+ 	* g++.dg/ipa/pr82352.C: New test.
+ 
+ 2018-03-07  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-02-08  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	* gcc.target/s390/nobp-function-pointer-attr.c: New test.
+ 	* gcc.target/s390/nobp-function-pointer-nothunk.c: New test.
+ 	* gcc.target/s390/nobp-function-pointer-z10.c: New test.
+ 	* gcc.target/s390/nobp-function-pointer-z900.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-attr.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-inline-attr.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-inline-z10.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-inline-z900.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-nothunk.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-z10.c: New test.
+ 	* gcc.target/s390/nobp-indirect-jump-z900.c: New test.
+ 	* gcc.target/s390/nobp-return-attr-all.c: New test.
+ 	* gcc.target/s390/nobp-return-attr-neg.c: New test.
+ 	* gcc.target/s390/nobp-return-mem-attr.c: New test.
+ 	* gcc.target/s390/nobp-return-mem-nothunk.c: New test.
+ 	* gcc.target/s390/nobp-return-mem-z10.c: New test.
+ 	* gcc.target/s390/nobp-return-mem-z900.c: New test.
+ 	* gcc.target/s390/nobp-return-reg-attr.c: New test.
+ 	* gcc.target/s390/nobp-return-reg-mixed.c: New test.
+ 	* gcc.target/s390/nobp-return-reg-nothunk.c: New test.
+ 	* gcc.target/s390/nobp-return-reg-z10.c: New test.
+ 	* gcc.target/s390/nobp-return-reg-z900.c: New test.
+ 	* gcc.target/s390/nobp-table-jump-inline-z10.c: New test.
+ 	* gcc.target/s390/nobp-table-jump-inline-z900.c: New test.
+ 	* gcc.target/s390/nobp-table-jump-z10.c: New test.
+ 	* gcc.target/s390/nobp-table-jump-z900.c: New test.
+ 
+ 2018-03-07  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-02-09  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+ 
+ 	PR target/PR84295
+ 	* gcc.target/s390/pr84295.c: New test.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-02-20  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c/84310
+ 	PR target/79747
+ 	* gcc.target/i386/pr84310.c: New test.
+ 	* gcc.target/i386/pr84310-2.c: Likewise.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-23  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR lto/81440
+ 	* gcc.dg/lto/pr81440.h: New test.
+ 	* gcc.dg/lto/pr81440_0.c: New test.
+ 	* gcc.dg/lto/pr81440_1.c: New test.
+ 
+ 2018-03-07  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2018-01-30  Jan Hubicka  <hubicka@ucw.cz>
+ 
+ 	PR lto/83954
+ 	* gcc.dg/lto/pr83954.h: New testcase.
+ 	* gcc.dg/lto/pr83954_0.c: New testcase.
+ 	* gcc.dg/lto/pr83954_1.c: New testcase.
+ 
+ 2018-03-06  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/56667
+ 	* gfortran.dg/implied_do_2.f90: New test.
+ 	* gfortran.dg/coarray_8.f90: Update for new error message.
+ 
+ 2018-03-03  Harald Anlauf  <anlauf@gmx.de>
+ 
+ 	PR fortran/71085
+ 	* gfortran.dg/pr71085.f90: New test.
+ 
+ 2018-03-03  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk.
+ 	PR fortran/78990
+ 	* gfortran.dg/class_67.f90: New test.
+ 
+ 2017-03-02  Thomas Schwinge  <thomas@codesourcery.com>
+ 
+ 	Backport from trunk r256891:
+ 	2018-01-19  Cesar Philippidis  <cesar@codesourcery.com>
+ 
+ 	PR target/83790
+ 	* gcc.target/nvptx/indirect_call.c: New test.
+ 
+ 2018-02-28  Alan Modra  <amodra@gmail.com>
+ 
+ 	* lib/prune.exp (prune_gcc_output): Match lower case "in function"
+ 	GNU ld message.
+ 	* g++.dg/other/anon5.C: Match lower case "bad value" GNU ld message.
+ 
+ 2018-02-25  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83633
+ 	* gfortran.dg/explicit_shape_1.f90: New test.
+ 	* gfortran.dg/automatic_module_variable.f90: Update regex.
+ 	* gfortran.dg/bad_automatic_objects_1.f90: Ditto.
+ 
+ 2018-02-24  Steven G. Kargl <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/30792
+ 	* gfortran.dg/data_substring.f90: New test.
+ 
+ 2018-02-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/84506
+ 	* gfortran.dg/inquire_19.f90: New test.
+ 
+ 2018-02-23  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/84346
+ 	* gfortran.dg/statement_function_1.f90: Update test.
+ 
+ 2018-02-21  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	Backport from trunk
+ 	2018-01-12  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	* gcc.c-torture/compile/pr82096.c: Add dg-skip-if
+ 	directive.
+ 
+ 	Backport from trunk
+ 	2018-01-10  Sudakshina Das  <sudi.das@arm.com>
+ 
+ 	PR target/82096
+ 	* gcc.c-torture/compile/pr82096.c: New test.
+ 
+ 2018-02-16  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	PR ada/84277
+ 	* gnat.dg/array11.adb (Array11): Tweak index and remove warning.
+ 	* gnat.dg/dispatch1.adb: Rename into...
+ 	* gnat.dg/disp1.adb: ...this.
+ 	* gnat.dg/dispatch1_p.ads: Rename into...
+ 	* gnat.dg/disp1_pkg.ads: ...this.
+ 	* gnat.dg/disp2.adb: Rename into...
+ 	* gnat.dg/dispatch2.adb: ...this.
+ 	* gnat.dg/dispatch2_p.ads: Rename into...
+ 	* gnat.dg/disp2_pkg.ads: ...this.
+ 	* gnat.dg/dispatch2_p.adb: Rename into...
+ 	* gnat.dg/disp2_pkg.adb: this.
+ 	* gnat.dg/generic_dispatch.adb: Rename into...
+ 	* gnat.dg/generic_disp.adb: this.
+ 	* gnat.dg/generic_dispatch_p.ads: Rename into...
+ 	* gnat.dg/generic_disp_pkg.ads: ...this.
+ 	* gnat.dg/generic_dispatch_p.adb: Rename into...
+ 	* gnat.dg/generic_disp_pkg.adb: ...this.
+ 	* gnat.dg/null_pointer_deref1.adb (Null_Pointer_Deref1): Robustify.
+ 	* gnat.dg/null_pointer_deref2.adb (Null_Pointer_Deref2): Likewise.
+ 	* gnat.dg/object_overflow1.adb: Tweak index.
+ 	* gnat.dg/object_overflow2.adb: Likewise.
+ 	* gnat.dg/object_overflow3.adb: Likewise.
+ 	* gnat.dg/object_overflow4.adb: Likewise.
+ 	* gnat.dg/object_overflow5.adb: Likewise.
+ 
+ 2018-02-14  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from GCC 7 branch
+ 	2018-02-14  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/84390
+ 	* gcc.target/powerpc/vsxcopy.c: Also match lxv when compiling
+ 	with -mcpu=power9.
+ 
+ 2018-02-12  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	PR fortran/68560
+ 	* gfortran.dg/shape_9.f90: New test.
+ 
+ 2018-02-12  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+ 
+ 	PR fortran/35299
+ 	ChangeLog for r257566
+ 	* gfortran.dg/statement_function_3.f: New test.
+ 
+ 2018-02-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/54223
+ 	PR fortran/84276
+ 	* gfortran.dg/statement_function_1.f90: New test.
+ 	* gfortran.dg/statement_function_2.f90: New test.
+ 
+ 2018-02-07  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/82994
+ 	* gfortran.dg/deallocate_error_3.f90: New test.
+ 	* gfortran.dg/deallocate_error_4.f90: New test.
+ 
+ 2018-02-07  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/82049
+ 	* gfortran.dg/assumed_charlen_parameter.f90: New test.
+ 
+ 2018-02-01  Renlin Li  <renlin.li@arm.com>
+ 
+ 	Backport from mainline
+ 	2018-02-01  Richard Sandiford  <richard.sandiford@linaro.org>
+ 
+ 	PR target/83370
+ 	* gcc.target/aarch64/pr83370.c: New.
+ 
+ 2018-02-01  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	Backport from mainline
+ 	2017-11-15  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	PR tree-optimization/82726
+ 	* gcc.dg/tree-ssa/pr82726.c: New test.
+ 
+ 	Backport from mainline
+ 	2017-01-23  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	PR tree-optimization/70754
+ 	* gfortran.dg/pr70754.f90: New test.
+ 
+ 2018-02-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	Backport from mainline
+ 	2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	* lib/target-supports.exp (check_effective_target_avx512f): Also
+ 	check for __builtin_ia32_addsd_round,
+ 	__builtin_ia32_getmantsd_round.
+ 	* gcc.target/i386/i386.exp (check_effective_target_avx512f):
+ 	Remove.
+ 
+ 2018-01-29  Alan Modra  <amodra@gmail.com>
+ 
+ 	PR target/84033
+ 	* gcc.target/powerpc/swaps-p8-46.c: New.
+ 
+ 2018-01-23  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Back port from mainline
+ 	2018-01-10  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/83399
+ 	* gcc.target/powerpc/pr83399.c: New test.
+ 
+ 2018-01-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2018-01-22  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/83862
+ 	* gcc.target/powerpc/pr83862.c: New test.
+ 
+ 2018-01-20  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83900
+ 	* gfortran.dg/matmul_18.f90: New test.
+ 
+ 2018-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/83900
+ 	* gfortran.dg/matmul_17.f90: New test.
+ 
+ 2018-01-19  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/80768
+ 	* gfortran.dg/num_images_1.f90:  New test that tests fix in r250734.
+ 
+ 2018-01-17  Harald Anlauf  <anlauf@gmx.de>
+ 
+ 	Back from mainline
+ 	PR fortran/83874
+ 	* gfortran.dg/pr83874.f90: New test.
+ 
+ 2018-01-16  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	Backport from mainline
+ 	2017-12-18  Segher Boessenkool  <segher@kernel.crashing.org>
+ 
+ 	PR rtl-optimization/83424
+ 	* gcc.dg/pr83424.c: New testsuite.
+ 
+ 2018-01-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2018-01-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR target/83677
+ 	* gcc.target/powerpc/pr83677.c: New file.
+ 
+ 2018-01-13  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	PR fortran/78814
+ 	* gfortran.dg/interface_40.f90: New testcase.
+ 
+ 2018-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/82367
+ 	* gfortran.dg/deferred_character_18.f90: New test.
+ 
+ 2018-01-10  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/83093
+ 	* gfortran.dg/allocate_with_typespec_7.f90: New test.
+ 
+ 2018-01-10  Steven G. Kargl  <kargl@kgcc.gnu.org>
+ 
+ 	Backport r254555 from trunk
+ 	PR Fortran/82841
+ 	* gfortran.dg/transfer_simplify_11.f90: New test.
+ 
+ 2018-01-09  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	Backport from mainline
+ 	2017-12-19  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/82975
+ 	* gcc.dg/pr82975.c: New test.
+ 
+ 2018-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	Backport from 7-branch
+ 	PR fortran/83650
+ 	* gfortran.dg/simplify_cshift_1.f90: Correct condition.
+ 
+ 2017-12-14  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-12-13  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	* gcc.target/powerpc/cpu-builtin-1.c (htm-no-suspend): Add test.
+ 
+ 2017-12-14  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-10-02  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/80210
+ 	* gcc.target/powerpc/pr80210-2.c: New test.
+ 
+ 2017-12-14  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gnat.dg/alignment13.adb: New test.
+ 
+ 2017-12-11  Thomas Schwinge  <thomas@codesourcery.com>
+ 
+ 	PR c++/83301
+ 
+ 	Backport trunk r243377:
+ 	2016-12-07  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/78692
+ 	* g++.dg/torture/pr78692.C: New test.
+ 
+ 2017-12-04  Sebastian Peryt  <sebastian.peryt@intel.com>
+ 	H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backported from trunk
+ 	PR target/82941
+ 	PR target/82942
+ 	PR target/82990
+ 	* gcc.target/i386/pr82941-1.c: New test.
+ 	* gcc.target/i386/pr82941-2.c: Likewise.
+ 	* gcc.target/i386/pr82942-1.c: Likewise.
+ 	* gcc.target/i386/pr82942-2.c: Likewise.
+ 	* gcc.target/i386/pr82990-1.c: Likewise.
+ 	* gcc.target/i386/pr82990-2.c: Likewise.
+ 	* gcc.target/i386/pr82990-3.c: Likewise.
+ 	* gcc.target/i386/pr82990-4.c: Likewise.
+ 	* gcc.target/i386/pr82990-5.c: Likewise.
+ 	* gcc.target/i386/pr82990-6.c: Likewise.
+ 	* gcc.target/i386/pr82990-7.c: Likewise.
+ 
+ 2017-11-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	Backport from mainline
+ 	2017-11-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	* lib/target-supports.exp (check_effective_target_pie): Adapt
+ 	comment for Solaris 12 renaming.
+ 
+ 	* gcc.dg/torture/pr60092.c: Remove *-*-solaris2.11* dg-xfail-run-if.
+ 
+ 2017-11-13  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/82934
+ 	* gfortran.dg/allocate_assumed_charlen_1.f90: New test.
+ 
+ 2017-11-13  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/78619
+ 	* gfortran.dg/pr78619.f90: New test.
+ 
+ 2017-11-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2017-02-03  John David Anglin  <danglin@gcc.gnu.org>
+ 
+         * c-c++-common/Wunused-var-16.c: Add -fno-common additional option on
+ 	hppa*-*-hpux*
+         * c-c++-common/builtin-shuffle-1.c: Likewise.
+ 
+ 	2017-02-15  David Edelsohn  <dje.gcc@gmail.com>
+ 
+ 	* g++.dg/cpp0x/pr79296.C: Move dg-do compile directive first.
+ 
+ 	2017-02-24  David Edelsohn  <dje.gcc@gmail.com>
+ 
+ 	* g++.dg/ext/complit15.C: Require LTO.
+ 
+ 	2017-01-26  David Edelsohn  <dje.gcc@gmail.com>
+ 
+ 	* g++.dg/opt/declone3.C: Require LTO.
+ 
+ 	2017-03-26  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* gcc.dg/torture/pr79732.c: Require alias support.
+ 
+ 	2017-02-03  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* gfortran.dg/coarray_43.f90: Add "-latomic" option if
+ 	libatomic_available.
+ 
+ 2017-11-10  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gnat.dg/opt69.adb: New test.
+ 
+ 2017-11-06  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backported from trunk
+ 	PR fortran/78641
+ 	* gfortran.dg/class_66.f90: New test.
+ 
+ 2017-11-06  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backported from trunk
+ 	PR fortran/69739
+ 	* gfortran.dg/pr69739.f90: New test.
+ 
+ 2017-11-01  Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	PR fortran/82796
+ 	* gfortran.dg/equiv_pure.f90: New test.
+ 
+ 2017-11-03  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from 7-branch
+ 	PR fortran/81735
+ 	* gfortran.dg/pr81735.f90: New test.
+ 
+ 2017-11-01  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/78293
+ 	* gfortran.dg/allocatable_function_10.f90: New test.
+ 	* gfortran.dg/class_array_15.f03: Increase builtin_free count
+ 	from 11 to 12.
+ 
+ 017-11-01  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/80554
+ 	* gfortran.dg/submodule_29.f08: New test.
+ 
+ 2017-10-22  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR libfortran/82233
+ 	* gfortran.dg/execute_command_line_3.f90: New test.
+ 
+ 2017-10-20  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/79795
+ 	* gfortran.dg/assumed_size_2.f90: New test.
+ 
+ 2017-10-19  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/79402
+ 	* gfortran.dg/submodule_23.f90: New test.
+ 
+ 2017-10-19  Richard Earnshaw  <rearnsha@arm.com>
+ 
+ 	PR target/82445
+ 	* gcc.target/arm/peep-ldrd-1.c: Tighten test scan pattern.
+ 	* gcc.target/arm/peep-strd-1.c: Likewise.
+ 	* gcc.target/arm/peep-ldrd-2.c: New test.
+ 	* gcc.target/arm/peep-strd-2.c: New test.
+ 
+ 2017-10-19  Paul Thomas  <pault@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/81048
+ 	* gfortran.dg/derived_init_4.f90 : New test.
+ 
+ 2017-10-17  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/82549
+ 	* gcc.c-torture/compile/pr82549.c: New test.
+ 
+ 2017-10-13  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82274
+ 	* gcc.dg/pr82274-1.c: New test.
+ 	* gcc.dg/pr82274-2.c: New test.
+ 
+ 2017-10-06  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 	    Steven G. Kargl  <kargl@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/80118
+ 	* gfortran.dg/zero_sized_7.f90: New test.
+ 
+ 2017-10-02  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-09-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/82337
+ 	* gcc.c-torture/compile/pr82337.c: New file.
+ 
+ 2017-10-02  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* opt55.ad[sb]: Move to...
+ 	* gnat.dg/opt55.ad[sb]: ...here.
+ 
+ 2017-09-19  Martin Liska  <mliska@suse.cz>
+ 
+ 	Revert backport:
+ 	2017-08-10  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c++/81355
+ 	* g++.dg/other/pr81355.C: New test.
+ 
+ 2017-09-18  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-04-07  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/80341
+ 	* gcc.dg/torture/pr80341.c: New testcase.
+ 
+ 	2017-04-04  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/80281
+ 	* gcc.dg/torture/pr80281.c: New testcase.
+ 
+ 2017-09-18  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2017-08-28  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/81977
+ 	* g++.dg/torture/pr81977.C: New testcase.
+ 
+ 	2017-09-04  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/82084
+ 	* g++.dg/torture/pr82084.C: New testcase.
+ 
+ 	2017-07-25  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/81505
+ 	* gcc.dg/ubsan/pr81505.c: New testcase.
+ 
+ 2017-09-18  Martin Liska  <mliska@suse.cz>
+ 
+ 	* gcc.dg/asan/pr81224.c: Remove.
+ 
+ 2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-09-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82112
+ 	* gcc.target/powerpc/pr82112.c: New test.
+ 	* g++.dg/ext/altivec-18.C: New test.
+ 
+ 	PR target/82112
+ 	* c-c++-common/pr82112.c: New test.
+ 	* gcc.dg/pr82112.c: New test.
+ 
+ 	2017-09-05  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/81768
+ 	* gcc.dg/gomp/pr81768-2.c: New test.
+ 
+ 	PR middle-end/81768
+ 	* gcc.dg/gomp/pr81768-1.c: New test.
+ 
+ 	2017-08-08  Richard Biener  <rguenther@suse.de>
+ 
+ 	PR middle-end/81766
+ 	* gcc.target/i386/pr81766.c: New testcase.
+ 
+ 	2017-08-03  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/81621
+ 	* gcc.dg/pr81621.c: New test.
+ 
+ 	PR middle-end/81052
+ 	* c-c++-common/pr81052.c: New test.
+ 
+ 	2017-08-02  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/79499
+ 	* gcc.dg/pr79499.c: New test.
+ 
+ 	2017-06-30  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/81225
+ 	* gcc.target/i386/pr81225.c: New test.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-11  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR tree-opt/79987
+ 	* gcc.target/i386/mpx/pr79987.c: New test.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-06-28  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR sanitizer/81224
+ 	* gcc.dg/asan/pr81224.c: New test.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-30  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR inline-asm/82001
+ 	* gcc.dg/ipa/pr82001.c: New test.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-10  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR c++/81355
+ 	* g++.dg/other/pr81355.C: New test.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-08-08  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR tree-opt/81696
+ 	* gcc.dg/ipa/pr81696.c: New test.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-07-19  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR sanitizer/63361
+ 	* c-c++-common/ubsan/float-cast-overflow-1.c: Add either
+ 	-ffloat-store or -mieee for targets that need it.
+ 
+ 2017-09-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	Backport from mainline
+ 	2017-06-28  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR ipa/81128
+ 	* gcc.target/i386/pr81128.c: New test.
+ 
+ 2017-09-12  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-09-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR target/81833
+ 	* gcc.target/powerpc/pr81833-1.c: New file.
+ 	* gcc.target/powerpc/pr81833-2.c: New file.
+ 
+ 2017-09-10  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR c++/81852
+ 	* g++.dg/cpp1y/feat-cxx11.C: Check __cpp_threadsafe_static_init.
+ 	* g++.dg/cpp1y/feat-cxx14.C: Likewise.
+ 	* g++.dg/cpp1y/feat-cxx98.C: Likewise.
+ 	* g++.dg/cpp1y/feat-neg.C: Likewise.
+ 	* g++.dg/cpp1z/feat-cxx1z.C: Likewise.
+ 
+ 2017-09-06  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline:
+ 	2017-08-30  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/81987
+ 	* g++.dg/torture/pr81987.C: New file.
+ 
+ 2017-09-05  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-08-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 		    Richard Biener  <rguenther@suse.de>
+ 
+ 	PR tree-optimization/81503
+ 	* gcc.c-torture/execute/pr81503.c: New file.
+ 
+ 2017-09-05  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* gnat.dg/specs/uc2.ads: New test.
+ 
+ 2017-09-05  Eric Botcazou  <ebotcazou@adacore.com>
+ 
+ 	* testsuite/gnat.dg/array29.ad[sb]: New test.
+ 
+ 2017-09-04  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	* gcc.target/i386/mpx/mpx-os-support.h: New file.
+ 	* gcc.target/i386/mpx/mpx-check.h: Include mpx-os-support.h.
+ 	(check_osxsave): New function.
+ 	(main): Use __get_cpuid_count and return NORUNRES on failure.
+ 	Use check_osxsave.
+ 	* gcc.target/i386/mpx/va-arg-pack-1-lbv.c (foo1): Use
+ 	__builtin_va_arg_pack instead of __va_arg_pack.
+ 	* gcc.target/i386/mpx/va-arg-pack-1-nov.c (foo1): Ditto.
+ 	* gcc.target/i386/mpx/va-arg-pack-1-ubv.c (foo1): Ditto.
+ 	* gcc.target/i386/mpx/va-arg-pack-2-lbv.c (foo1): Ditto.
+ 	* gcc.target/i386/mpx/va-arg-pack-2-nov.c (foo1): Ditto.
+ 	* gcc.target/i386/mpx/va-arg-pack-2-ubv.c (foo1): Ditto.
+ 
+ 2017-09-02  Janus Weil  <janus@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR fortran/81770
+ 	* gfortran.dg/warn_target_lifetime_3.f90: Fix a typo.
+ 	* gfortran.dg/warn_target_lifetime_4.f90: New testcase.
+ 
+ 2017-08-30  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2017-08-07  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/81593
+ 	* gcc.target/powerpc/vec-setup.h: New tests to test various
+ 	combinations of setting up vectors of 2 double word elements.
+ 	* gcc.target/powerpc/vec-setup-long.c: Likewise.
+ 	* gcc.target/powerpc/vec-setup-double.c: Likewise.
+ 	* gcc.target/powerpc/vec-setup-be-long.c: Likewise.
+ 	* gcc.target/powerpc/vec-setup-be-double.c: Likewise.
+ 	* gcc.target/powerpc/vsx-extract-6.c: New tests for optimzing
+ 	vector inserts from vector extracts.
+ 	* gcc.target/powerpc/vsx-extract-7.c: Likewise.
+ 
+ 2017-08-24  Yvan Roux  <yvan.roux@linaro.org>
+ 
+ 	Backport from mainline
+ 	2017-08-22  Yvan Roux  <yvan.roux@linaro.org>
+ 
+ 	PR c++/80287
+ 	* g++.dg/pr8028.C: New test.
+ 
+ 2017-08-22  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-08-17  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	PR target/80210
+ 	* gcc.target/powerpc/pr80210.c: New test.
+ 
+ 2017-08-16  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-08-08  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/81354
+ 	* g++.dg/torture/pr81354.C: New file.
+ 
+ 2017-08-14  Paolo Carlini  <paolo.carlini@oracle.com>
+ 
+ 	PR c++/71570
+ 	* g++.dg/cpp0x/lambda/lambda-ice17.C: New.
+ 
+ 2017-08-01  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81641
+ 	* gcc.target/i386/pr81641.c: New test.
+ 
+ 2017-07-31  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/81604
+ 	* c-c++-common/ubsan/pr81604.c: New test.
+ 
+ 2017-07-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-07-28  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	* gcc.target/powerpc/cpu-builtin-1.c (darn, scv): Add tests.
+ 
+ 2017-07-28  Bin Cheng  <bin.cheng@arm.com>
+ 
+ 	Backport from mainline r250496
+ 	2017-07-25  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+ 
+ 	PR target/81414
+ 	* gcc.target/aarch64/pr81414.C: New.
+ 
+ 2017-07-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR tree-optimization/81555
+ 	PR tree-optimization/81556
+ 	* gcc.c-torture/execute/pr81555.c: New test.
+ 	* gcc.c-torture/execute/pr81556.c: New test.
+ 
+ 2017-07-26  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-07-05 trunk r249995, r249996.
+ 
+ 	PR target/81305
+ 	* gcc.target/avr/isr-test.h: New file.
+ 	* gcc.target/avr/torture/isr-01-simple.c: New test.
+ 	* gcc.target/avr/torture/isr-02-call.c: New test.
+ 	* gcc.target/avr/torture/isr-03-fixed.c: New test.
+ 
+ 2017-07-25  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-07-14  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
+ 
+ 	PR tree-optimization/81162
+ 	* gcc.dg/ubsan/pr81162.c: New file.
+ 
+ 2017-07-25  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from trunk r247719.
+ 
+ 	2017-05-06  Richard Sandiford  <richard.sandiford@linaro.org>
+ 
+ 	PR rtl-optimization/75964
+ 	* gcc.dg/torture/pr75964.c: New test.
+ 
+ 2017-07-24  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/80569
+ 	* gcc.target/i386/pr80569.c: New test.
+ 
+ 2017-07-18  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81471
+ 	* gcc.target/i386/pr81471.c: New test.
+ 
+ 2017-07-14  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	Backports from trunk:
+ 
+ 	2017-01-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/66669
+ 	* gcc.dg/loop-8.c: Modify dg-skip-if directive to exclude this
+ 	test on powerpc targets.
+ 
+ 	2017-02-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/68972
+ 	* g++.dg/cpp1y/vla-initlist1.C: Add dg-skip-if directive to
+ 	disable this test on power architecture.
+ 
+ 	2017-03-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	* gcc.target/powerpc/p9-options-1.c: New test.
+ 
+ 	2017-03-27  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/80103
+ 	* gcc.target/powerpc/pr80103-1.c: New test.
+ 
+ 	2017-05-08  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/80101
+ 	* gcc.target/powerpc/pr80101-1.c: New test.
+ 
+ 	2017-07-05  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 	PR target/80103
+ 	* gcc.target/powerpc/pr80103-1.c (b): Correct spelling of
+ 	__attribute__.
+ 
+ 2017-07-14  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	Backport from mainline
+ 	2017-07-10  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81375
+ 	* gcc.target/i386/pr81375.c: New test.
+ 
+ 	Backport from mainline
+ 	2017-07-04  Uros Bizjak  <ubizjak@gmail.com>
+ 
+ 	PR target/81300
+ 	* gcc.target/i386/pr81300.c: New test.
+ 
+ 2017-07-13  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	backport from mainline:
+ 	PR tree-optimization/81192
+ 	2017-07-03  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	* gcc.dg/pr81192.c: New test.
+ 
+ 2017-07-06  Andrew Pinski  <apinski@cavium.com>
+ 
+ 	* gcc.target/aarch64/pr71112.c: New Testcase.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
***************
*** 509,515 ****
  	2017-02-21  Jakub Jelinek  <jakub@redhat.com>
  
  	PR c++/79639
! 	* g++.dg/cpp1y/constexpr-79639.C: New test. 
  
  	PR target/79570
  	* gcc.dg/pr79570.c: New test.
--- 2584,2590 ----
  	2017-02-21  Jakub Jelinek  <jakub@redhat.com>
  
  	PR c++/79639
! 	* g++.dg/cpp1y/constexpr-79639.C: New test.
  
  	PR target/79570
  	* gcc.dg/pr79570.c: New test.
***************
*** 612,625 ****
  
  	Backport from trunk
  	PR fortran/71838
! 	* gfortran.dg/submodule_26.f08 : New test.
! 	* gfortran.dg/submodule_27.f08 : New test.
  
  2017-04-01  Paul Thomas  <pault@gcc.gnu.org>
  
  	Backport from trunk
  	PR fortran/79676
! 	* gfortran.dg/submodule_28.f08 : New test.
  
  2017-03-31  Richard Sandiford  <richard.sandiford@arm.com>
  
--- 2687,2700 ----
  
  	Backport from trunk
  	PR fortran/71838
! 	* gfortran.dg/submodule_26.f08: New test.
! 	* gfortran.dg/submodule_27.f08: New test.
  
  2017-04-01  Paul Thomas  <pault@gcc.gnu.org>
  
  	Backport from trunk
  	PR fortran/79676
! 	* gfortran.dg/submodule_28.f08: New test.
  
  2017-03-31  Richard Sandiford  <richard.sandiford@arm.com>
  
***************
*** 689,695 ****
  
  	Backport from trunk
  	PR fortran/79434
! 	* gfortran.dg/submodule_25.f08 : New test.
  
  2017-03-24  Tom de Vries  <tom@codesourcery.com>
  
--- 2764,2770 ----
  
  	Backport from trunk
  	PR fortran/79434
! 	* gfortran.dg/submodule_25.f08: New test.
  
  2017-03-24  Tom de Vries  <tom@codesourcery.com>
  
***************
*** 2843,2849 ****
  
  	Backport from trunk
  	PR fortran/71883
! 	* gfortran.dg/pr71883.f90 : New test.
  
  2016-07-26  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
  
--- 4918,4924 ----
  
  	Backport from trunk
  	PR fortran/71883
! 	* gfortran.dg/pr71883.f90: New test.
  
  2016-07-26  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>
  
***************
*** 2922,2927 ****
--- 4997,5019 ----
  	* g++.dg/cpp0x/pr70869.C: New test.
  	* g++.dg/cpp0x/pr71054.C: New test.
  
+ 2017-07-19  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	Back port from trunk
+ 	2017-06-28  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/81193
+ 	* lib/target-supports.exp
+ 	(check_ppc_cpu_supports_hw_available): New test to make sure
+ 	__builtin_cpu_supports works on power7 and newer.
+ 
+ 	Back port from trunk
+ 	2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>
+ 
+ 	PR target/81193
+ 	* gcc.target/powerpc/cpu-builtin-1.c: Add guard against using
+ 	__builtin_cpu_supports with old GLIBC's.
+ 
  2016-07-18  Michael Meissner  <meissner@linux.vnet.ibm.com>
  
  	Back port from mainline
***************
*** 6544,6550 ****
  2016-02-20  Paul Thomas  <pault@gcc.gnu.org>
  
  	PR fortran/69423
! 	* gfortran.dg/deferred_character_15.f90 : New test.
  
  2016-02-20  Dominique d'Humieres  <dominiq@lps.ens.fr>
  
--- 8636,8642 ----
  2016-02-20  Paul Thomas  <pault@gcc.gnu.org>
  
  	PR fortran/69423
! 	* gfortran.dg/deferred_character_15.f90: New test.
  
  2016-02-20  Dominique d'Humieres  <dominiq@lps.ens.fr>
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/Wunused-var-16.c gcc-6.5.0/gcc/testsuite/c-c++-common/Wunused-var-16.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/Wunused-var-16.c	Tue Jan 17 20:32:27 2017
--- gcc-6.5.0/gcc/testsuite/c-c++-common/Wunused-var-16.c	Sat Nov 11 16:42:36 2017
***************
*** 1,6 ****
--- 1,7 ----
  /* PR c++/78949 */
  /* { dg-do compile } */
  /* { dg-options "-Wunused" } */
+ /* { dg-additional-options "-fno-common" { target hppa*-*-hpux* } } */
  
  typedef unsigned char V __attribute__((vector_size(16)));
  V v;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/builtin-shuffle-1.c gcc-6.5.0/gcc/testsuite/c-c++-common/builtin-shuffle-1.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/builtin-shuffle-1.c	Wed Dec  7 22:46:26 2016
--- gcc-6.5.0/gcc/testsuite/c-c++-common/builtin-shuffle-1.c	Sat Nov 11 16:42:36 2017
***************
*** 1,5 ****
--- 1,6 ----
  /* PR c++/78089 */
  /* { dg-do run } */
+ /* { dg-additional-options "-fno-common" { target hppa*-*-hpux* } } */
  
  typedef int V __attribute__((vector_size (16)));
  V a, b, c;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/dwarf2/pr83550.c gcc-6.5.0/gcc/testsuite/c-c++-common/dwarf2/pr83550.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/dwarf2/pr83550.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/dwarf2/pr83550.c	Mon Jun 25 17:08:02 2018
***************
*** 0 ****
--- 1,10 ----
+ /* PR debug/83550 */
+ /* { dg-do compile } */
+ /* { dg-options "-gdwarf -dA -fno-merge-debug-strings" } */
+ 
+ struct my_struct;
+ extern struct my_struct s;
+ struct my_struct { int a, b; };
+ struct my_struct q;
+ 
+ /* { dg-final { scan-assembler "DW_TAG_structure_type\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\"my_struct\[^\\r\\n\]*DW_AT_name(\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*DW_AT_)*\[^\\r\\n\]*\[\\r\\n\]+\[^\\r\\n\]*\[^0-9a-fA-FxX](0x)?7\[^0-9a-fA-FxX]\[^\\r\\n\]*DW_AT_decl_line" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/gomp/pr84341.c gcc-6.5.0/gcc/testsuite/c-c++-common/gomp/pr84341.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/gomp/pr84341.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/gomp/pr84341.c	Mon Jun 25 17:21:04 2018
***************
*** 0 ****
--- 1,10 ----
+ /* PR c++/84341 */
+ /* { dg-do compile } */
+ /* { dg-options "-fopenmp" } */
+ 
+ void
+ foo (int i)
+ {
+   #pragma omp atomic
+     i = &i + 1;		/* { dg-error "invalid form of" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/pr81052.c gcc-6.5.0/gcc/testsuite/c-c++-common/pr81052.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/pr81052.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/pr81052.c	Fri Sep 15 21:34:10 2017
***************
*** 0 ****
--- 1,28 ----
+ /* PR middle-end/81052 */
+ /* { dg-do compile } */
+ /* { dg-options "-fopenmp-simd -O2" } */
+ 
+ int
+ foo (int x, int y)
+ {
+   int i;
+ #pragma omp simd
+   for (i = x; i < y; ++i)
+     return 0;			/* { dg-error "invalid branch to/from OpenMP structured block" } */
+   return 1;
+ }
+ 
+ #ifdef __cplusplus
+ template <typename T>
+ T
+ bar (T x, T y)
+ {
+   T i;
+ #pragma omp simd
+   for (i = x; i < y; ++i)
+     return 0;			/* { dg-error "invalid branch to/from OpenMP structured block" "" { target c++ } } */
+   return 1;
+ }
+ 
+ int x = bar (1, 7);
+ #endif
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/pr82112.c gcc-6.5.0/gcc/testsuite/c-c++-common/pr82112.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/pr82112.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/pr82112.c	Fri Sep 15 21:40:51 2017
***************
*** 0 ****
--- 1,13 ----
+ /* PR target/82112 */
+ /* { dg-do compile } */
+ 
+ int c[10], d[10], e[10], f[10], g[10], h[10], i[10], j[10], k[10], l[10];
+ 
+ void
+ foo (void)
+ {
+   __atomic_load (c, d, __ATOMIC_ACQUIRE);
+   __atomic_store (e, f, __ATOMIC_SEQ_CST);
+   __atomic_exchange (g, h, i, __ATOMIC_RELAXED);
+   __atomic_compare_exchange (j, k, l, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/pr83059.c gcc-6.5.0/gcc/testsuite/c-c++-common/pr83059.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/pr83059.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/pr83059.c	Mon Jun 25 16:48:43 2018
***************
*** 0 ****
--- 1,10 ----
+ /* PR c++/83059 */
+ /* { dg-do compile } */
+ 
+ void
+ foo (int *p, int *q, int *r)
+ {
+   __atomic_compare_exchange (p, q, r, 0, 0, -1);	/* { dg-warning "invalid memory model argument 6" } */
+   /* { dg-warning "\[uU]nknown architecture specifi" "" { target *-*-* } .-1 } */
+   /* { dg-warning "failure memory model cannot be stronger than success memory model" "" { target *-*-* } .-2 } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/pr84873.c gcc-6.5.0/gcc/testsuite/c-c++-common/pr84873.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/pr84873.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/pr84873.c	Wed Jun 20 13:10:21 2018
***************
*** 0 ****
--- 1,8 ----
+ /* { dg-do compile } */
+ /* { dg-additional-options "-frounding-math" } */
+ 
+ int
+ i1 (int w3, int n9)
+ {
+   return w3 >> ((long int)(1 + 0.1) + -!n9);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/torture/pr83553.c gcc-6.5.0/gcc/testsuite/c-c++-common/torture/pr83553.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/torture/pr83553.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/torture/pr83553.c	Mon Jun 25 17:10:18 2018
***************
*** 0 ****
--- 1,29 ----
+ /* PR c++/83553 */
+ /* { dg-do run } */
+ 
+ int a[3];
+ 
+ int
+ foo (int n)
+ {
+   switch (n)
+     {
+     case 0:
+       for (n = 7, a[0]++; 0; a[2] = a[1] + 1)
+ 	{
+     case 2:
+ 	  a[1] = a[0] + 1;
+ 	}
+     }
+   return n;
+ }
+ 
+ int
+ main ()
+ {
+   if (foo (0) != 7 || a[0] != 1 || a[1] || a[2])
+     __builtin_abort ();
+   if (foo (2) != 2 || a[0] != 1 || a[1] != 2 || a[2] != 3)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/torture/pr85022.c gcc-6.5.0/gcc/testsuite/c-c++-common/torture/pr85022.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/torture/pr85022.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/torture/pr85022.c	Mon Jun 25 17:37:40 2018
***************
*** 0 ****
--- 1,9 ----
+ /* PR inline-asm/85022 */
+ 
+ extern struct B b;
+ 
+ void
+ foo ()
+ {
+   __asm ("" : "+m" (b));
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/torture/pr87248.c gcc-6.5.0/gcc/testsuite/c-c++-common/torture/pr87248.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/torture/pr87248.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/torture/pr87248.c	Fri Oct 12 17:33:25 2018
***************
*** 0 ****
--- 1,36 ----
+ /* PR middle-end/87248 */
+ /* { dg-do run } */
+ 
+ void
+ foo (signed char *p, int q)
+ {
+   *p = q & (-__SCHAR_MAX__ - 1) ? (-__SCHAR_MAX__ - 1) : 0;
+ }
+ 
+ int
+ bar (long long x)
+ {
+   return x & (-__INT_MAX__ - 1) ? (-__INT_MAX__ - 1) : 0;
+ }
+ 
+ int
+ main ()
+ {
+ #if __INT_MAX__ > 4 * __SCHAR_MAX__
+   signed char a[4];
+   foo (a, __SCHAR_MAX__ + 1U);
+   foo (a + 1, 2 * (__SCHAR_MAX__ + 1U));
+   foo (a + 2, -__INT_MAX__ - 1);
+   foo (a + 3, (__SCHAR_MAX__ + 1U) / 2);
+   if (a[0] != (-__SCHAR_MAX__ - 1) || a[1] != a[0] || a[2] != a[0] || a[3] != 0)
+     __builtin_abort ();
+ #endif
+ #if __LONG_LONG_MAX__ > 4 * __INT_MAX__
+   if (bar (__INT_MAX__ + 1LL) != (-__INT_MAX__ - 1)
+       || bar (2 * (__INT_MAX__ + 1LL)) != (-__INT_MAX__ - 1)
+       || bar (-__LONG_LONG_MAX__ - 1) != (-__INT_MAX__ - 1)
+       || bar ((__INT_MAX__ + 1LL) / 2) != 0)
+     __builtin_abort ();
+ #endif
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-1.c gcc-6.5.0/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-1.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-1.c	Thu Jul 17 10:50:25 2014
--- gcc-6.5.0/gcc/testsuite/c-c++-common/ubsan/float-cast-overflow-1.c	Fri Sep 15 09:13:57 2017
***************
*** 1,6 ****
  /* { dg-do run { target { lp64 || ilp32 } } } */
  /* { dg-options "-fsanitize=float-cast-overflow" } */
! /* { dg-additional-options "-msse2 -mfpmath=sse" { target { sse2_runtime && ia32 } } } */
  
  #include <limits.h>
  #include "float-cast.h"
--- 1,7 ----
  /* { dg-do run { target { lp64 || ilp32 } } } */
  /* { dg-options "-fsanitize=float-cast-overflow" } */
! /* { dg-additional-options "-ffloat-store" { target { ia32 } } } */
! /* { dg-additional-options "-mieee" { target { { alpha*-*-* } || { sh*-*-* } } } } */
  
  #include <limits.h>
  #include "float-cast.h"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/c-c++-common/ubsan/pr81604.c gcc-6.5.0/gcc/testsuite/c-c++-common/ubsan/pr81604.c
*** gcc-6.4.0/gcc/testsuite/c-c++-common/ubsan/pr81604.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/c-c++-common/ubsan/pr81604.c	Mon Jul 31 08:56:03 2017
***************
*** 0 ****
--- 1,31 ----
+ /* PR sanitizer/81604 */
+ /* { dg-do run } */
+ /* { dg-options "-fsanitize=bounds,signed-integer-overflow" } */
+ 
+ long a[10];
+ 
+ __attribute__((noinline, noclone)) long *
+ foo (int i)
+ {
+   return &a[i];
+ }
+ 
+ __attribute__((noinline, noclone)) long
+ bar (long x, long y)
+ {
+   return x * y;
+ }
+ 
+ int
+ main ()
+ {
+   volatile int i = -1;
+   volatile long l = __LONG_MAX__;
+   long *volatile p;
+   p = foo (i);
+   l = bar (l, l);
+   return 0;
+ }
+ 
+ /* { dg-output "index -1 out of bounds for type 'long int \\\[10\\\]'\[^\n\r]*(\n|\r\n|\r)" } */
+ /* { dg-output "\[^\n\r]*signed integer overflow: \[0-9]+ \\* \[0-9]+ cannot be represented in type 'long int'" } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/elision3.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/elision3.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/elision3.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/elision3.C	Tue Feb 27 04:22:31 2018
***************
*** 0 ****
--- 1,21 ----
+ // PR c++/84441
+ // { dg-do compile { target c++11 } }
+ 
+ struct B {
+   int *b;
+ };
+ struct A {
+   B b;
+   A (A &&);
+ };
+ struct C {
+   A c;
+   int d;
+ };
+ C bar ();
+ struct D : C {
+   D ()
+     : C (0 ? bar () : bar ())
+   {}
+ };
+ D d;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/gen-attrs-64.C	Mon Jun 25 17:42:12 2018
***************
*** 0 ****
--- 1,4 ----
+ // PR c++/85140
+ // { dg-do compile { target c++11 } }
+ 
+ namespace N alignas() {}	// { dg-error "expected" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice17.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice17.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice17.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ice17.C	Mon Aug 14 12:23:03 2017
***************
*** 0 ****
--- 1,12 ----
+ // PR c++/71570
+ // { dg-do compile { target c++11 } }
+ 
+ void foo (int);
+ 
+ void foo (void)
+ {
+   [&foo] // { dg-error "cannot capture" }
+   {
+     foo (0);
+   };
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr79296.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr79296.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr79296.C	Mon Feb 13 18:12:17 2017
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr79296.C	Sat Nov 11 16:42:36 2017
***************
*** 1,6 ****
  // { dg-require-effective-target lto }
  // { dg-additional-options "-flto" }
- // { dg-do compile { target c++11 } }
  
  // PR 79296 ICE mangling local class of localized instantiation
  
--- 1,6 ----
+ // { dg-do compile { target c++11 } }
  // { dg-require-effective-target lto }
  // { dg-additional-options "-flto" }
  
  // PR 79296 ICE mangling local class of localized instantiation
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr80259.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr80259.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr80259.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr80259.C	Mon Jun 25 16:58:35 2018
***************
*** 0 ****
--- 1,13 ----
+ // PR c++/80259
+ // { dg-do compile { target c++11 } }
+ 
+ void foo () {}	// { dg-message "previously defined here" }
+ void bar ();
+ 
+ struct A
+ {
+   friend void foo () = delete;	// { dg-error "redefinition of" }
+   friend void bar () = delete;	// { dg-message "previously defined here" }
+ };
+ 
+ void bar () {}	// { dg-error "redefinition of" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr83824.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr83824.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr83824.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr83824.C	Mon Jun 25 17:12:28 2018
***************
*** 0 ****
--- 1,9 ----
+ // PR c++/83824
+ // { dg-do compile { target c++11 } }
+ 
+ void
+ foo ()
+ {
+   if (alignas(1 alignas(1)))	// { dg-error "expected" }
+     ;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr85147.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr85147.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/pr85147.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/pr85147.C	Mon Jun 25 17:42:51 2018
***************
*** 0 ****
--- 1,9 ----
+ // PR c++/85147
+ // { dg-do compile { target c++11 } }
+ 
+ template<typename T> struct A
+ {
+   template<template<...T> class...> struct B {};	// { dg-error "expected|mismatch" }
+ };
+ 
+ A<int>::B<> b;						// { dg-error "does not name a template type" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/range-for13.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/range-for13.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/range-for13.C	Wed Apr 15 17:18:27 2015
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/range-for13.C	Thu Mar 29 14:10:22 2018
***************
*** 3,18 ****
  
  // { dg-do compile { target c++11 } }
  
- //These should not be used
- template<typename T> int *begin(T &t)
- {
-     T::fail;
- }
- template<typename T> int *end(T &t)
- {
-     T::fail;
- }
- 
  struct container1
  {
      int *begin();
--- 3,8 ----
*************** struct container10
*** 87,96 ****
      static function end;
  };
  
  void test1()
  {
!   for (int x : container1()); // { dg-error "member but not" }
!   for (int x : container2()); // { dg-error "member but not" }
    for (int x : container3()); // { dg-error "within this context" }
    for (int x : container4()); // { dg-error "cannot be used as a function" }
    for (int x : container5()); // { dg-error "invalid use of" }
--- 77,113 ----
      static function end;
  };
  
+ namespace N
+ {
+ template<typename T> int *begin(T &t)
+ {
+     return 0;
+ }
+ template<typename T> int *end(T &t)
+ {
+     return 0;
+ }
+ struct container11
+ {
+     int *begin();
+     //no end
+ };
+ 
+ struct container12
+ {
+     int *end();
+     //no begin
+ };
+ 
+ struct container13
+ {
+ };
+ }
+ 
  void test1()
  {
!   for (int x : container1()); // { dg-error "'begin' was not declared|'end' was not declared" }
!   for (int x : container2()); // { dg-error "'begin' was not declared|'end' was not declared" }
    for (int x : container3()); // { dg-error "within this context" }
    for (int x : container4()); // { dg-error "cannot be used as a function" }
    for (int x : container5()); // { dg-error "invalid use of" }
*************** void test1()
*** 99,102 ****
--- 116,122 ----
    for (int x : container8());
    for (int x : container9()); // { dg-error "within this context" }
    for (int x : container10());
+   for (int x : N::container11());
+   for (int x : N::container12());
+   for (int x : N::container13());
  }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/ref-qual18.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/ref-qual18.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp0x/ref-qual18.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp0x/ref-qual18.C	Wed Feb 28 21:34:56 2018
***************
*** 0 ****
--- 1,18 ----
+ // PR c++/71784
+ // { dg-do compile { target c++11 } }
+ 
+ template<typename T> struct A {
+   template<typename U> void f(U const&) & { }
+   template<typename U> void f(U const&) && { }
+ };
+ 
+ template void A<int>::f<int>(int const&) &;
+ template void A<float>::f<int>(int const&) &&;
+ 
+ template<typename T> struct B {
+   void f(int const&) & { }
+   void f(int const&) && { }
+ };
+ 
+ template void B<int>::f(int const&) &;
+ template void B<float>::f(int const&) &&;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx11.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx11.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx11.C	Tue Jul  5 17:55:36 2016
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx11.C	Sun Sep 10 09:05:31 2017
***************
*** 125,130 ****
--- 125,136 ----
  #  error "__cpp_alias_templates != 200704"
  #endif
  
+ #ifndef __cpp_threadsafe_static_init
+ #  error "__cpp_threadsafe_static_init"
+ #elif __cpp_threadsafe_static_init != 200806
+ #  error "__cpp_threadsafe_static_init != 200806"
+ #endif
+ 
  //  C++14 features allowed in C++11 in non-ANSI modes:
  
  #ifndef __cpp_binary_literals
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx14.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx14.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx14.C	Tue Jul  5 17:55:36 2016
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx14.C	Sun Sep 10 09:05:31 2017
***************
*** 118,123 ****
--- 118,129 ----
  #  error "__cpp_alias_templates != 200704"
  #endif
  
+ #ifndef __cpp_threadsafe_static_init
+ #  error "__cpp_threadsafe_static_init"
+ #elif __cpp_threadsafe_static_init != 200806
+ #  error "__cpp_threadsafe_static_init != 200806"
+ #endif
+ 
  //  C++14 features:
  
  #ifndef __cpp_binary_literals
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx98.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx98.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx98.C	Fri Dec 12 03:49:13 2014
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-cxx98.C	Sun Sep 10 09:05:31 2017
***************
*** 15,20 ****
--- 15,28 ----
  #  error "__cpp_exceptions != 199711"
  #endif
  
+ //  C++11 features allowed in C++98:
+ 
+ #ifndef __cpp_threadsafe_static_init
+ #  error "__cpp_threadsafe_static_init"
+ #elif __cpp_threadsafe_static_init != 200806
+ #  error "__cpp_threadsafe_static_init != 200806"
+ #endif
+ 
  //  C++14 features allowed in C++98 in non-ANSI modes:
  
  #ifndef __cpp_binary_literals
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-neg.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-neg.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/feat-neg.C	Mon Nov 10 15:53:12 2014
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/feat-neg.C	Sun Sep 10 09:05:31 2017
***************
*** 1,5 ****
  // { dg-do compile }
! // { dg-options "-fno-rtti -fno-exceptions" }
  
  //  C++98 features with explicit opt-out:
  
--- 1,5 ----
  // { dg-do compile }
! // { dg-options "-fno-rtti -fno-exceptions -fno-threadsafe-statics" }
  
  //  C++98 features with explicit opt-out:
  
***************
*** 10,12 ****
--- 10,18 ----
  #ifndef __cpp_exceptions
  #  error "__cpp_exceptions" // { dg-error "error" }
  #endif
+ 
+ //  C++11 features with explicit opt-out:
+ 
+ #ifndef __cpp_threadsafe_static_init
+ #  error "__cpp_threadsafe_static_init" // { dg-error "error" }
+ #endif
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/lambda-generic-nsdmi1.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/lambda-generic-nsdmi1.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/lambda-generic-nsdmi1.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/lambda-generic-nsdmi1.C	Tue Feb 27 04:22:24 2018
***************
*** 0 ****
--- 1,8 ----
+ // PR c++/84520
+ // { dg-do compile { target c++14 } }
+ 
+ struct A
+ {
+   static void foo(int);
+   void (*f)(int) = [](auto i) { foo(i); };
+ };
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/pr84558.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/pr84558.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/pr84558.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/pr84558.C	Mon Jun 25 17:24:06 2018
***************
*** 0 ****
--- 1,6 ----
+ // PR c++/84558
+ // { dg-do compile { target c++14 } }
+ 
+ struct A { static int i; constexpr A () { i = 0; } };
+ struct B { A a[2][3][4]; };
+ B b;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/pr84662.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/pr84662.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/pr84662.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/pr84662.C	Mon Jun 25 17:26:53 2018
***************
*** 0 ****
--- 1,6 ----
+ // PR c++/84662
+ // { dg-do compile { target c++14 } }
+ // { dg-options "" }
+ 
+ double b;
+ a (__attribute__((c (0 && int() - ([] {} && b) || auto))));	// { dg-error "expected constructor, destructor, or type conversion before" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/pr85076.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/pr85076.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/pr85076.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/pr85076.C	Mon Jun 25 17:40:52 2018
***************
*** 0 ****
--- 1,6 ----
+ // PR c++/85076
+ // { dg-do compile { target c++14 } }
+ 
+ template<typename> struct A*;	// { dg-error "expected unqualified-id before" }
+ 
+ auto a = [](A<auto>) {};	// { dg-error "is not a template|has incomplete type" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/vla-initlist1.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/vla-initlist1.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1y/vla-initlist1.C	Fri Dec 12 03:49:13 2014
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1y/vla-initlist1.C	Fri Jul 14 16:58:00 2017
***************
*** 1,4 ****
--- 1,5 ----
  // { dg-do run { target c++11 } }
+ // { dg-skip-if "power overwrites two slots of array i" { "power*-*-*" } }
  // { dg-options "-Wno-vla" }
  
  #include <initializer_list>
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1z/desig7.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1z/desig7.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1z/desig7.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1z/desig7.C	Mon Jun 25 17:33:40 2018
***************
*** 0 ****
--- 1,18 ----
+ // PR c++/84874
+ // { dg-do compile { target c++11 } }
+ // { dg-options "" }
+ 
+ struct A { int a, b; };
+ struct B { A d; };
+ 
+ void
+ foo (B *x)
+ {
+   *x = { .d = { .b = 5 } };	// { dg-message "non-trivial designated initializers not supported" }
+ }
+ 
+ void
+ bar (A *x)
+ {
+   *x = { .b = 6 };		// { dg-message "non-trivial designated initializers not supported" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1z/desig8.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1z/desig8.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1z/desig8.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1z/desig8.C	Mon Jun 25 17:34:18 2018
***************
*** 0 ****
--- 1,18 ----
+ // PR c++/84874
+ // { dg-do compile { target c++1z } }
+ // { dg-options "" }
+ 
+ struct A { int a; struct { int b; }; };
+ struct B { A d; };
+ 
+ void
+ foo (B *x)
+ {
+   *x = { .d = { .b = 5 } };	// { dg-message "non-trivial designated initializers not supported" }
+ }
+ 
+ void
+ bar (A *x)
+ {
+   *x = { .b = 6 };		// { dg-message "non-trivial designated initializers not supported" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C gcc-6.5.0/gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C	Tue Jul  5 17:55:36 2016
--- gcc-6.5.0/gcc/testsuite/g++.dg/cpp1z/feat-cxx1z.C	Sun Sep 10 09:05:31 2017
***************
*** 106,111 ****
--- 106,117 ----
  #  error "__cpp_alias_templates != 200704"
  #endif
  
+ #ifndef __cpp_threadsafe_static_init
+ #  error "__cpp_threadsafe_static_init"
+ #elif __cpp_threadsafe_static_init != 200806
+ #  error "__cpp_threadsafe_static_init != 200806"
+ #endif
+ 
  //  C++14 features:
  
  #ifndef __cpp_binary_literals
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/altivec-18.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/altivec-18.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/altivec-18.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/altivec-18.C	Fri Sep 15 21:41:29 2017
***************
*** 0 ****
--- 1,14 ----
+ // PR target/82112
+ // { dg-do compile { target powerpc*-*-* } }
+ // { dg-require-effective-target powerpc_altivec_ok }
+ // { dg-options "-maltivec" }
+ 
+ #include <altivec.h>
+ 
+ __attribute__((aligned (16))) extern const unsigned char c[16];
+ 
+ void
+ foo (void)
+ {
+   vec_ld (0, c);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/asm14.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/asm14.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/asm14.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/asm14.C	Mon Jun 25 17:51:44 2018
***************
*** 0 ****
--- 1,10 ----
+ // PR c++/85659
+ // { dg-do compile }
+ 
+ struct S { S (); ~S (); int s; };
+ 
+ void
+ foo (S &s)
+ {
+   __asm volatile ("" : "+m,r" (s) : : "memory");
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/asm15.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/asm15.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/asm15.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/asm15.C	Mon Jun 25 17:51:44 2018
***************
*** 0 ****
--- 1,10 ----
+ // PR c++/85659
+ // { dg-do compile }
+ 
+ struct S { S (); ~S (); int s; };
+ 
+ void
+ foo (S &s)
+ {
+   __asm volatile ("" : "+r" (s) : : "memory");	// { dg-error "" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/asm16.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/asm16.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/asm16.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/asm16.C	Mon Jun 25 17:51:44 2018
***************
*** 0 ****
--- 1,10 ----
+ // PR c++/85659
+ // { dg-do compile }
+ 
+ struct S { S (); ~S (); int s[64]; } s;
+ 
+ void
+ foo ()
+ {
+   __asm volatile ("" : "=r" (s) : : "memory");	// { dg-error "" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/complit15.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/complit15.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/complit15.C	Wed Apr 12 19:22:44 2017
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/complit15.C	Sat Nov 11 16:42:36 2017
***************
*** 1,4 ****
--- 1,5 ----
  // PR c++/79580
+ // { dg-require-effective-target lto }
  // { dg-options "-flto -std=c++98" }
  
  class a
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/constexpr-pr82781.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/constexpr-pr82781.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/constexpr-pr82781.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/constexpr-pr82781.C	Mon Jun 25 16:47:39 2018
***************
*** 0 ****
--- 1,12 ----
+ // PR c++/82781
+ // { dg-do compile { target c++11 } }
+ 
+ typedef int V __attribute__ ((vector_size (16)));
+ constexpr V b1 = { 0, 1, 10, 20 };
+ constexpr V b2 = { 0, 2, 10, 0 };
+ constexpr V b3 = b1 == b2;
+ 
+ static_assert (b3[0] == -1, "");
+ static_assert (b3[1] == 0, "");
+ static_assert (b3[2] == -1, "");
+ static_assert (b3[3] == 0, "");
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ext/vla18.C gcc-6.5.0/gcc/testsuite/g++.dg/ext/vla18.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ext/vla18.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ext/vla18.C	Mon Jun 25 17:29:17 2018
***************
*** 0 ****
--- 1,19 ----
+ // PR c++/84767
+ // { dg-do compile }
+ // { dg-options "" }
+ 
+ int v[1][10];
+ 
+ struct A
+ {
+   A (int);
+ };
+ 
+ A::A (int i)
+ {
+   typedef int T[1][i];
+   T *x = (T *) v;
+   (*x)[0][0] = 0;
+ }
+ 
+ A a = 10;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/gomp/pr84448.C gcc-6.5.0/gcc/testsuite/g++.dg/gomp/pr84448.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/gomp/pr84448.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/gomp/pr84448.C	Mon Jun 25 17:23:21 2018
***************
*** 0 ****
--- 1,17 ----
+ // PR c++/84448
+ // { dg-do compile }
+ 
+ struct A
+ {
+   operator int () const;
+   A& operator += (int);
+   A& operator ++ ();
+ };
+ 
+ void
+ foo (A a, A b)
+ {
+   #pragma omp for
+   for (A i = a; i <=; ++i)	// { dg-error "expected primary-expression before" }
+     ;				// { dg-error "invalid controlling predicate" "" { target *-*-* } .-1 }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/gomp/pr84791.C gcc-6.5.0/gcc/testsuite/g++.dg/gomp/pr84791.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/gomp/pr84791.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/gomp/pr84791.C	Mon Jun 25 17:41:34 2018
***************
*** 0 ****
--- 1,15 ----
+ // PR c++/84791
+ // { dg-do compile }
+ 
+ typedef int I;
+ 
+ template <int>
+ void
+ foo ()
+ {
+   I i;
+   #pragma omp parallel reduction (I::I: i)	// { dg-error "'I' is not a class, namespace, or enumeration" "" { target c++11 } }
+     ;						// { dg-error "'I' is not a class or namespace" "" { target c++98_only } .-1 }
+ }
+ 
+ template void foo<0> ();
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/guality/pr86687.C gcc-6.5.0/gcc/testsuite/g++.dg/guality/pr86687.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/guality/pr86687.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/guality/pr86687.C	Tue Oct 23 17:16:55 2018
***************
*** 0 ****
--- 1,28 ----
+ // PR debug/86687
+ // { dg-do run }
+ // { dg-options "-g" }
+ 
+ class string {
+ public:
+   string (int p) { this->p = p ; }
+   string (const string &s) { this->p = s.p; }
+ 
+   int p;
+ };
+ 
+ class foo {
+ public:
+   foo (string dir_hint) {
+     p = dir_hint.p; // { dg-final { gdb-test 16 "dir_hint.p" 3 } }
+   }
+ 
+   int p;
+ };
+ 
+ int
+ main (void)
+ {
+   string s = 3;
+   foo bar(s);
+   return !(bar.p == 3);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/inherit/covariant22.C gcc-6.5.0/gcc/testsuite/g++.dg/inherit/covariant22.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/inherit/covariant22.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/inherit/covariant22.C	Mon Jun 25 17:39:55 2018
***************
*** 0 ****
--- 1,19 ----
+ // PR c++/85068
+ // { dg-do compile }
+ 
+ struct A;
+ 
+ struct B
+ {
+   virtual A *foo ();	// { dg-error "overriding" }
+ };
+ 
+ struct C : virtual B
+ {
+   virtual C *foo ();	// { dg-error "invalid covariant return type for" }
+ };
+ 
+ struct D : C
+ {
+   virtual C *foo ();
+ };
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ipa/pr82352.C gcc-6.5.0/gcc/testsuite/g++.dg/ipa/pr82352.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ipa/pr82352.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ipa/pr82352.C	Sat Mar 10 18:45:55 2018
***************
*** 0 ****
--- 1,93 ----
+ // PR ipa/82352
+ // { dg-do compile }
+ // { dg-options "-O2" }
+ 
+ typedef __SIZE_TYPE__ size_t;
+ 
+ class A
+ {
+ public :
+   typedef enum { Zero = 0, One = 1 } tA;
+   A(tA a) { m_a = a; }
+ 
+ private :
+   tA m_a;
+ };
+ 
+ class B
+ {
+ public :
+   void *operator new(size_t t) { return (void*)(42); };
+ };
+ 
+ class C
+ {
+ public:
+   virtual void ffff () = 0;
+ };
+ 
+ class D
+ {
+  public :
+   virtual void g() = 0;
+   virtual void h() = 0;
+ };
+ 
+ template<class T> class IIII: public T, public D
+ {
+ public:
+  void ffff()
+  {
+    if (!m_i2) throw A(A::One);
+  };
+ 
+  void h()
+  {
+   if (m_i2) throw A(A::Zero);
+  }
+ 
+ protected:
+  virtual void g()
+  {
+   if (m_i1 !=0) throw A(A::Zero);
+  };
+ 
+ private :
+  int m_i1;
+  void *m_i2;
+ };
+ 
+ class E
+ {
+ private:
+     size_t m_e;
+     static const size_t Max;
+ 
+ public:
+     E& i(size_t a, size_t b, size_t c)
+     {
+         if ((a > Max) || (c > Max)) throw A(A::Zero );
+         if (a + b > m_e) throw A(A::One );
+         return (*this);
+     }
+ 
+   inline E& j(const E &s)
+     {
+       return i(0,0,s.m_e);
+     }
+ };
+ 
+ class F : public C { };
+ class G : public C { };
+ class HHHH : public B, public F, public G { };
+ 
+ void k()
+ {
+     new IIII<HHHH>();
+ }
+ 
+ void l()
+ {
+   E e1, e2;
+   e1.j(e2);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ipa/pr82801.C gcc-6.5.0/gcc/testsuite/g++.dg/ipa/pr82801.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ipa/pr82801.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ipa/pr82801.C	Mon Jun 25 17:02:47 2018
***************
*** 0 ****
--- 1,20 ----
+ // PR ipa/82801
+ // { dg-do compile }
+ // { dg-options "-O2 -Wno-attributes" }
+ 
+ template<int>
+ struct A { A () {} };
+ struct B { double foo () const; };
+ 
+ __attribute__((always_inline, flatten))
+ double B::foo () const
+ {
+   A<1> v;
+   return 0.0;
+ }
+ 
+ int
+ main ()
+ {
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/declone3.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/declone3.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/declone3.C	Thu Jan 26 16:34:03 2017
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/declone3.C	Sat Nov 11 16:42:36 2017
***************
*** 1,5 ****
--- 1,6 ----
  // PR c++/79176
  // { dg-do compile { target c++11 } }
+ // { dg-require-effective-target lto }
  // { dg-options "-flto -Os" }
  
  struct A {};
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr3698.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr3698.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr3698.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr3698.C	Fri Oct 12 17:27:56 2018
***************
*** 0 ****
--- 1,21 ----
+ // PR c++/3698
+ // { dg-do link }
+ // { dg-options "-O0" }
+ 
+ struct X {
+   int i;
+ };
+ 
+ inline const int&
+ OHashKey (const X& x)
+ {
+   return x.i;
+ }
+ 
+ int
+ main ()
+ {
+  extern const int& OHashKey (const X& x);
+  X x;
+  return OHashKey (x);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr77844.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr77844.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr77844.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr77844.C	Thu Mar  8 08:56:45 2018
***************
*** 0 ****
--- 1,32 ----
+ // PR debug/77844
+ // { dg-do compile }
+ // { dg-options "-O3 -g" }
+ 
+ #include <vector>
+ 
+ void
+ foo (std::vector<bool>& v, int i, int j)
+ {
+   for (int k = 0; k < 5; ++k)
+     v[5 * i + k] = v[5 * i + k] | v[5 * j + k];
+ }
+ 
+ void
+ bar (std::vector<bool>& v, int i, int j)
+ {
+   for (int k = 0; k < 5; ++k)
+     v[5 * i + k] = v[5 * i + k] ^ v[5 * j + k];
+ }
+ 
+ void
+ baz (std::vector<bool>& v)
+ {
+   foo (v, 4, 1);
+   foo (v, 4, 2);
+   foo (v, 4, 3);
+   foo (v, 4, 4);
+   bar (v, 4, 1);
+   bar (v, 4, 2);
+   bar (v, 4, 3);
+   bar (v, 4, 4);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr79085.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr79085.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr79085.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr79085.C	Mon Jun 25 17:32:55 2018
***************
*** 0 ****
--- 1,24 ----
+ // PR c++/79085
+ // { dg-do compile }
+ // { dg-options "-Os" }
+ // { dg-additional-options "-mstrict-align" { target { aarch64*-*-* powerpc*-*-linux* powerpc*-*-elf* } } }
+ 
+ void *operator new (__SIZE_TYPE__, void *p) { return p; }
+ 
+ struct S
+ {
+   S ();
+   S (const S &);
+   ~S (void);
+   int i;
+ };
+ 
+ S foo ();
+ 
+ static char buf [sizeof (S) + 1];
+ 
+ S *
+ bar ()
+ {
+   return new (buf + 1) S (foo ());
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr80032.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr80032.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr80032.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr80032.C	Fri Oct 12 13:44:35 2018
***************
*** 0 ****
--- 1,121 ----
+ // PR tree-optimization/80032
+ /* { dg-do compile } */
+ /* { dg-require-effective-target c++11 } */
+ /* { dg-options "-O2" } */
+ /* If DCE removes too many CLOBBERs then stack usage goes through the
+    roof as stack slots can no longer be shared.  */
+ /* { dg-additional-options "-Wstack-usage=200" { target x86_64-*-* i?86-*-* } } */
+ 
+ typedef unsigned a;
+ namespace test {
+     enum b { c };
+     class ADataContainer;
+     class BitMask;
+     namespace api {
+ 	enum DataStore { candidate };
+     }
+     using d = api::DataStore;
+     namespace db {
+ 	class e;
+ 	class f;
+ 	class g;
+ 	class ManagedObjectConst {
+ 	public:
+ 	    ManagedObjectConst(const ManagedObjectConst &);
+ 	    bool isFieldDefault(a, d) const;
+ 	    ADataContainer &getFieldDefault(a, d) const;
+ 	    g *h;
+ 	    e *i;
+ 	    f *j;
+ 	};
+ 	struct FieldInfo {
+ 	    FieldInfo(ManagedObjectConst, a, d);
+ 	    ManagedObjectConst k;
+ 	};
+ 	b compare(const FieldInfo &, const ADataContainer &);
+ 	class ManagedObject : public ManagedObjectConst {};
+     }
+     using namespace db;
+     void FN(ManagedObject &k, const BitMask &) {
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+ 	if (!k.isFieldDefault(8, d::candidate) &&
+ 	    !compare(FieldInfo(k, 11, d::candidate),
+ 		     k.getFieldDefault(11, d::candidate)) == c)
+ 	  return;
+     }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr82159-2.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr82159-2.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr82159-2.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr82159-2.C	Mon Jun 25 16:46:54 2018
***************
*** 0 ****
--- 1,65 ----
+ // PR c++/82159
+ // { dg-do compile }
+ // { dg-options "" }
+ 
+ template <typename T> struct D { T e; };
+ struct F : D<int[0]> {
+   F(const F &);
+ };
+ struct G : F {
+   template <class T> G operator-(T);
+ };
+ template <class T> struct I {
+   typedef typename T::template J<I> ak;
+ };
+ template <class T> struct K { typename I<T>::ak an; };
+ struct H {
+   G l;
+ };
+ struct C {
+   ~C();
+ };
+ template <class T> struct M : T {
+   template <typename U, typename V> M(U, V);
+   H h;
+   virtual void foo() { T::bar(&h); }
+ };
+ template <int, typename> class A;
+ template <class> struct B {
+   typedef int BT;
+   struct BC {};
+   template <class T> struct BD {
+     G g;
+     BD(BT, T n) : g(n.l - 0) {}
+   };
+   B(BT, BC);
+ };
+ template <typename> struct O;
+ template <int T, typename U>
+ struct O<B<A<T, U> > > : public B<A<T, U> >::BC {};
+ struct L : B<A<2, double> > {
+   struct P : C {
+     void bar(H *x) {
+       BT a;
+       BD<H>(a, *x);
+     }
+   };
+   template <typename U, typename V> L(U x, V n) : B(x, n) {}
+   int ll;
+   virtual int baz() { M<P>(this, ll); }
+ };
+ template <typename> class Q {
+   O<B<A<2, double> > > q;
+   virtual L baz() { L(0, q); }
+ };
+ template <template <class> class T> struct R {
+   R() { T<int>(); }
+ };
+ struct S {
+   template <class> class J : R<Q> {};
+ };
+ void foo() { K<S> c; }
+ 
+ int main() {
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr82159.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr82159.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr82159.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr82159.C	Mon Jun 25 16:43:16 2018
***************
*** 0 ****
--- 1,18 ----
+ // PR c++/82159
+ // { dg-do compile }
+ // { dg-options "" }
+ 
+ template<int N>
+ struct S
+ {
+   ~S () {}
+   template<int M> S<M> foo () { return S<M> (); }
+   unsigned char data[N];
+ };
+ 
+ int
+ main ()
+ {
+   S<16> d;
+   S<0> t = d.foo<0> ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr85196.C gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr85196.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/opt/pr85196.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/opt/pr85196.C	Fri Apr  6 22:33:55 2018
***************
*** 0 ****
--- 1,89 ----
+ // PR target/85196
+ // Testcase by Rainer Orth <ro@gcc.gnu.org>
+ 
+ // { dg-do compile }
+ // { dg-options "-O -fpermissive -w" }
+ // { dg-additional-options "-fPIC" { target fpic } }
+ 
+ class a;
+ template <typename> class b;
+ template <typename k> class d : public b<k> {};
+ class e {};
+ void f(int);
+ template <class> class g {
+ public:
+   h();
+   a i();
+ };
+ template <> class b<e> : public g<e> {};
+ typedef (*j)(d<e>);
+ template <class k> class l {
+ public:
+   k operator->() { return 0; }
+ };
+ enum m { n, aa, o, ab, q, p };
+ inline s(m ac) {
+   switch (ac) {
+   case n:
+   case aa:
+   case p:
+     return 1;
+   case o:
+   case ab:
+     return 2;
+   }
+ }
+ class D {
+   int ad;
+ 
+ public:
+   *ae() { return &ad; }
+ };
+ class a {
+   l<D *> af;
+ 
+ public:
+   *r() { return af->ae(); }
+   t(int *c) {
+     int *w = af->ae();
+     return w == c;
+   }
+ };
+ class F : a {
+ public:
+   static int ah[];
+   static e v(F *);
+   unsigned long ai() const;
+ };
+ inline unsigned long F::ai() const {
+   m aj = r() - &ah[0];
+   return s(aj);
+ }
+ inline e F::v(F *ak) {
+   long al = ak->ai();
+   f(al);
+ }
+ template <typename> am() { return q; }
+ class an : F {
+ public:
+   static ao(d<e> u) {
+     int *ap;
+     m aq = am<unsigned>();
+     ap = &ah[aq];
+     return u.h() && u.i().t(ap);
+   }
+   template <e ar(F *)> static as() {
+     F at;
+     ar(&at);
+   }
+   template <e ar(F *)> static au(int *, unsigned, e *) {
+     j av = ao;
+     d<e> aw;
+     if (av(aw))
+       as<ar>();
+   }
+ };
+ int *ax;
+ int ay;
+ e az;
+ ba() { an::au<an::v>(ax, ay, &az); }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/other/anon5.C gcc-6.5.0/gcc/testsuite/g++.dg/other/anon5.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/other/anon5.C	Mon Feb  1 22:20:47 2016
--- gcc-6.5.0/gcc/testsuite/g++.dg/other/anon5.C	Wed Feb 28 08:07:35 2018
***************
*** 4,10 ****
  // Ignore additional message on powerpc-ibm-aix
  // { dg-prune-output "obtain more information" } */
  // Ignore additional messages on Linux/x86 with PIE
! // { dg-prune-output "Bad value" } */
  
  namespace {
    struct c
--- 4,10 ----
  // Ignore additional message on powerpc-ibm-aix
  // { dg-prune-output "obtain more information" } */
  // Ignore additional messages on Linux/x86 with PIE
! // { dg-prune-output "\[Bb\]ad value" } */
  
  namespace {
    struct c
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/pr80287.C gcc-6.5.0/gcc/testsuite/g++.dg/pr80287.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/pr80287.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/pr80287.C	Thu Aug 24 13:20:22 2017
***************
*** 0 ****
--- 1,13 ----
+ // PR c++/80287
+ // { dg-do compile { target c++11 } }
+ // { dg-options "-g" }
+ 
+ struct A {
+   operator long() {}
+ } __attribute__((__may_alias__));
+ 
+ struct {
+   A ino;
+ } a;
+ 
+ char b = a.ino;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/pr85026.C gcc-6.5.0/gcc/testsuite/g++.dg/pr85026.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/pr85026.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/pr85026.C	Wed Mar 28 10:38:36 2018
***************
*** 0 ****
--- 1,61 ----
+ /* PR target/85026.  */
+ /* { dg-do assemble } */
+ /* { dg-options "-O2 -std=gnu++11" } */
+ 
+ template <class> class a;
+ class b;
+ struct c {
+   typedef a<b> &g;
+ };
+ template <typename d> struct e { typedef typename d::f iter; };
+ class h {
+ public:
+   void __attribute__((noreturn)) i();
+ } ab;
+ template <class> class a {
+ public:
+   typedef b *f;
+   b &operator[](unsigned m) {
+     if (ac)
+       ab.i();
+     return ad[m];
+   }
+   f n() { return ad; }
+   f m_fn3();
+   b *ad;
+   unsigned ac;
+ };
+ class b {
+ public:
+   short j;
+   short k;
+   signed l;
+ } __attribute__((__packed__));
+ void o(a<b> &m, b &p2, b &p) {
+   p2 = p = m[0];
+   if (bool at = false)
+     ;
+   else
+     for (c::g au(m);; at = true)
+       if (bool av = false)
+         ;
+       else
+         for (e<a<int>>::iter aw = au.n(), ax = au.m_fn3(); ax;
+              av ? (void)0 : (void)0)
+           if (bool ay = 0)
+             ;
+           else
+             for (b az = *aw; !ay; ay = true) {
+               if (p2.j)
+                 p2.j = az.j;
+               else if (p.j)
+                 p.j = az.j;
+               if (p2.k)
+                 p2.k = az.k;
+               else if (az.k > p.k)
+                 p.k = az.k;
+               if (az.l < p2.l)
+                 if (az.l > p.l)
+                   p.l = az.l;
+             }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/template/pr79650.C gcc-6.5.0/gcc/testsuite/g++.dg/template/pr79650.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/template/pr79650.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/template/pr79650.C	Mon Jun 25 17:01:10 2018
***************
*** 0 ****
--- 1,20 ----
+ // PR c++/79650
+ // { dg-do compile { target c++11 } }
+ // { dg-options "" }
+ 
+ typedef __INTPTR_TYPE__ intptr_t;
+ template<intptr_t> struct A {};
+ 
+ void
+ foo ()
+ {
+   static int a, b;
+ lab1:
+ lab2:
+   A<(intptr_t)&&lab1 - (__INTPTR_TYPE__)&&lab2> c;	// { dg-error "not a constant integer" }
+   A<(intptr_t)&&lab1 - (__INTPTR_TYPE__)&&lab1> d;
+   A<(intptr_t)&a - (intptr_t)&b> e;			// { dg-error "is not a constant expression" }
+   A<(intptr_t)&a - (intptr_t)&a> f;
+   A<(intptr_t)sizeof(a) + (intptr_t)&a> g;		// { dg-error "not a constant integer" }
+   A<(intptr_t)&a> h;					// { dg-error "conversion from pointer type" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr78692.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr78692.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr78692.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr78692.C	Mon Dec 11 09:49:25 2017
***************
*** 0 ****
--- 1,26 ----
+ // PR c++/78692
+ 
+ int a;
+ void *b;
+ extern "C" {
+ struct C {
+   virtual int d ();
+ };
+ struct E {
+   virtual int operator () (int, const void *, int) = 0;
+ };
+ class F {
+   int g ();
+   int h;
+   E &i;
+ };
+ struct : C, E {
+   int operator () (int, const void *, int) { throw int(); }
+ } j;
+ 
+ int
+ F::g ()
+ {
+   a = i (h, b, 0);
+ }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81354.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81354.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81354.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81354.C	Wed Aug 16 14:11:26 2017
***************
*** 0 ****
--- 1,24 ----
+ // PR81354 reported this test as crashing in a limited range of revisions.
+ // { dg-do compile }
+ 
+ struct T { double a; double b; };
+ 
+ void foo(T Ad[], int As[2])
+ {
+   int j;
+   int i;
+   int Bs[2] = {0,0};
+   T Bd[16];
+ 
+   for (j = 0; j < 4; j++) {
+     for (i = 0; i + 1 <= j + 1; i++) {
+       Ad[i + As[0] * j] = Bd[i + Bs[0] * j];
+     }
+ 
+     i = j + 1;  // <- comment out this line and it does not crash
+     for (; i + 1 < 5; i++) {
+       Ad[i + As[0] * j].a = 0.0;
+       Ad[i + As[0] * j].b = 0.0;
+     }
+   }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81884.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81884.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81884.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81884.C	Thu Jun 21 07:24:06 2018
***************
*** 0 ****
--- 1,39 ----
+ /* { dg-do run } */
+ 
+ typedef unsigned long uint64_t;
+ 
+ struct value_t {
+     uint64_t _count;
+     value_t(uint64_t c) : _count(c) {}
+ };
+ 
+ struct X {
+     value_t eventTime;
+     uint64_t arr[0];
+ };
+ 
+ X* x;
+ 
+ __attribute__((noclone, noinline))
+ void initialize()
+ {
+   x->arr[0] = 11;
+   x->arr[1] = 12;
+   x->eventTime = value_t(10);
+   x->arr[2] = 13;
+   x->arr[3] = 14;
+ }
+ 
+ int main()
+ {
+   char buffer[sizeof(X) + sizeof(uint64_t)*4];
+   x = (X*)buffer;
+   x->eventTime = value_t(999);
+   x->arr[0] = 1;
+   x->arr[1] = 2;
+   x->arr[2] = 3;
+   x->arr[3] = 4;
+   initialize();
+   if (x->arr[0] != 11 || x->arr[1] != 12 || x->arr[2] != 13 || x->arr[3] != 14)
+     __builtin_abort ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81977.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81977.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81977.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81977.C	Mon Sep 18 11:07:50 2017
***************
*** 0 ****
--- 1,55 ----
+ /* { dg-do run } */
+ /* { dg-require-effective-target int32plus } */
+ 
+ #include <cstdint>
+ 
+ typedef struct
+ {
+   uint16_t  x ;
+   uint16_t  y ;
+   uint64_t  z ;
+ } __attribute__((packed, aligned(1))) TestMsgType;
+ 
+ struct Payload
+ {
+   uint16_t header_info[2];
+   TestMsgType _pref;
+   void Pack(uint8_t *buffer)
+     {
+       __builtin_memcpy(buffer, &_pref, sizeof(_pref));
+     }
+   void UnPack(uint8_t *buffer)
+     {
+       __builtin_memcpy(&_pref, buffer, sizeof(_pref));
+     }
+ };
+ 
+ 
+ struct Msg
+ {
+   Payload _payload;
+   void Pack(uint8_t *buffer)
+     {
+       _payload.Pack(buffer);
+     }
+ 
+   void UnPack(uint8_t *buffer)
+     {
+       _payload.UnPack(buffer);
+     }
+ };
+ 
+ int main()
+ {
+   uint8_t * buffer = new uint8_t [30];
+   Msg msg;
+   Msg msg1;
+   msg._payload._pref.x             = 0xabcd;
+   msg._payload._pref.y             = 0xa;
+   msg._payload._pref.z             = 0x0001020304051617;
+   msg.Pack(&buffer[0]);
+   msg1.UnPack(&buffer[0]);
+   if (msg1._payload._pref.x != 0xabcd)
+     __builtin_abort ();
+   delete [] buffer;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81987.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81987.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr81987.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr81987.C	Wed Sep  6 18:44:51 2017
***************
*** 0 ****
--- 1,61 ----
+ extern short var_1;
+ extern const short var_3;
+ extern unsigned long int var_9;
+ extern short var_13;
+ extern const unsigned long int var_15;
+ extern const unsigned long int var_37;
+ extern unsigned long int var_40;
+ extern long long int var_47;
+ extern short var_48;
+ extern const short var_54;
+ extern long long int var_79;
+ extern long long int var_81;
+ extern long long int var_94;
+ extern long long int var_95;
+ extern long long int var_701;
+ extern unsigned long int var_786;
+ extern short var_788;
+ extern long long int var_844;
+ 
+ struct struct_1 {
+   short member_1_2 : 15;
+   static long long int member_1_3;
+ };
+ 
+ extern struct_1 struct_obj_6;
+ extern struct_1 struct_obj_8;
+ 
+ void foo() {
+   int a = var_3 <= 602154393864UL;
+   if (var_81 ? 0 : var_3 && var_9)
+     ;
+   else {
+     var_94 = 0;
+     if (var_3 && var_48 || var_13) {
+       if (var_48)
+ 	var_95 = 0;
+       short b((2364461588881776511UL + var_3) * (2 ? var_13 : 0) || var_1);
+       struct_obj_8.member_1_2 = b;
+       if (var_15) {
+ 	if (var_81)
+ 	  if (var_47)
+ 	    ;
+ 	  else if (var_40)
+ 	    var_701 = 0;
+       } else {
+ 	if (var_40)
+ 	  var_79 = 0;
+ 	if (var_54) {
+ 	  if (var_37)
+ 	    var_786 = 0;
+ 	  else
+ 	    var_788 = 0;
+ 	            struct_obj_6.member_1_3 =
+ 		      (2364461588881776511UL + var_3) * (2 ? var_13 : 0);
+ 	}
+       }
+       if ((2364461588881776511UL + var_3) * (2 ? var_13 : 0))
+ 	var_844 = 0;
+     }
+   }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr82084.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr82084.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr82084.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr82084.C	Mon Sep 18 11:07:50 2017
***************
*** 0 ****
--- 1,9 ----
+ // { dg-do compile }
+ 
+ #include <string>
+ int main()
+ {
+   wchar_t strs[4][2]= {  L"A", L"B", L"C" , L"D"};
+   std::wstring ss(strs[0]);
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr83713.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr83713.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr83713.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr83713.C	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,12 ----
+ // { dg-do compile }
+ 
+ class a
+ {
+   char b;
+   void c ();
+ };
+ void
+ a::c ()
+ {
+   &b + ((long long) &b & 0);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr85496.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr85496.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr85496.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr85496.C	Mon Apr 23 20:31:17 2018
***************
*** 0 ****
--- 1,18 ----
+ // PR middle-end/85496
+ // Reported by Marek Polacek <mpolacek@gcc.gnu.org>
+ 
+ template <typename> class complex;
+ template <typename _Tp> complex<_Tp> operator*(complex<_Tp>, complex<_Tp>);
+ template <> struct complex<float> { _Complex float _M_value; };
+ class A {
+   complex<float> _f0, _f1;
+ 
+ public:
+   complex<float> &m_fn1() { return _f1; }
+ };
+ complex<float> a;
+ void cos() {
+   A b;
+   complex<float> c;
+   b.m_fn1() = c * a;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr87014.C gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr87014.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/torture/pr87014.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/torture/pr87014.C	Tue Aug 21 16:38:17 2018
***************
*** 0 ****
--- 1,37 ----
+ // { dg-do run }
+ 
+ void
+ fillstack ()
+ {
+   long long foo[] =
+     {
+       -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+     };
+ }
+ 
+ void
+ f (long long=-1,long long=-1,long long=-1,long long=-1,
+    long long=-1,long long=-1,long long arg7_on_stack=-1)
+ {
+   throw 0;
+ }
+ 
+ void
+ g()
+ {
+   try
+     {
+       f ();
+     }
+   catch (int)
+     {
+     }
+ }
+ 
+ int
+ main()
+ {
+   fillstack ();
+   g ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/tree-ssa/pr83523.C gcc-6.5.0/gcc/testsuite/g++.dg/tree-ssa/pr83523.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/tree-ssa/pr83523.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/tree-ssa/pr83523.C	Mon Jun 25 17:04:14 2018
***************
*** 0 ****
--- 1,25 ----
+ // PR tree-optimization/83523
+ // { dg-do compile }
+ // { dg-options "-O2 -fexceptions -fnon-call-exceptions -ftrapv" }
+ 
+ #ifdef __SIZEOF_INT128__
+ typedef __int128 T;
+ typedef long long int U;
+ #else
+ typedef long long int T;
+ typedef int U;
+ #endif
+ 
+ struct S { S (); ~S (); };
+ void bar ();
+ 
+ T
+ foo (U x, U y)
+ {
+   T z = x;
+   S s;
+   bar ();
+   z *= y;
+   bar ();
+   return z;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/tree-ssa/volatile1.C gcc-6.5.0/gcc/testsuite/g++.dg/tree-ssa/volatile1.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/tree-ssa/volatile1.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/tree-ssa/volatile1.C	Fri Feb 16 21:34:57 2018
***************
*** 0 ****
--- 1,28 ----
+ // PR c++/84151
+ // { dg-additional-options "-fdump-tree-gimple" }
+ // { dg-final { scan-tree-dump-not {\*this} "gimple" } }
+ 
+ struct A {
+   static int& bar(int& a) {
+     return a;
+   }
+   static int i;
+ 
+   int foo() volatile {
+     int v = c;
+     return i + bar(v);
+   }
+ 
+   int c;
+ };
+ 
+ int A::i = 0;
+ 
+ A a;
+ 
+ int main() {
+   a.c = 2;
+   a.foo();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/tree-ssa/volatile2.C gcc-6.5.0/gcc/testsuite/g++.dg/tree-ssa/volatile2.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/tree-ssa/volatile2.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/tree-ssa/volatile2.C	Mon Mar  5 14:28:15 2018
***************
*** 0 ****
--- 1,20 ----
+ // PR c++/84686
+ // { dg-additional-options -fdump-tree-gimple }
+ // { dg-final { scan-tree-dump-times "= i" 10 "gimple" } }
+ 
+ volatile int i;
+ 
+ int main()
+ {
+   i; //evaluated (a load is performed)
+   (i); //unevaluated => the load shall be performed
+ 
+   (void)i; //evaluated (a load is performed)
+   (void)(i); //unevaluated => the load shall be performed
+ 
+   (void)i; //evaluated (a load is performed)
+   (void)(i); //unevaluated => the load shall be performed
+ 
+   (i,i); // the two subexpression are evaluated
+   ((i),(i)); // no evaluation, => two loads shall happen
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ubsan/pr81212.C gcc-6.5.0/gcc/testsuite/g++.dg/ubsan/pr81212.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ubsan/pr81212.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ubsan/pr81212.C	Mon Jun 25 16:57:59 2018
***************
*** 0 ****
--- 1,16 ----
+ // PR c++/81212
+ // { dg-do compile }
+ // { dg-options "-Wreturn-type -fsanitize=return" }
+ 
+ struct S
+ {
+   S (void *);
+   void *s;
+ };
+ 
+ S
+ foo (bool x, void *y)
+ {
+   if (x)
+     return S (y);
+ }	// { dg-warning "control reaches end of non-void function" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ubsan/pr83987-2.C gcc-6.5.0/gcc/testsuite/g++.dg/ubsan/pr83987-2.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ubsan/pr83987-2.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ubsan/pr83987-2.C	Mon Jun 25 17:20:18 2018
***************
*** 0 ****
--- 1,24 ----
+ // PR sanitizer/83987
+ // { dg-do compile { target fopenmp } }
+ // { dg-options "-fopenmp -fsanitize=vptr" }
+ 
+ struct A
+ {
+   int i;
+ };
+ 
+ struct B : virtual A
+ {
+   void foo();
+ };
+ 
+ void B::foo()
+ {
+ #pragma omp parallel
+   {
+   #pragma omp sections lastprivate (i)
+     {
+       i = 0;
+     }
+   }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/ubsan/pr83987.C gcc-6.5.0/gcc/testsuite/g++.dg/ubsan/pr83987.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/ubsan/pr83987.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/ubsan/pr83987.C	Mon Jun 25 17:14:01 2018
***************
*** 0 ****
--- 1,15 ----
+ // PR sanitizer/83987
+ // { dg-do compile { target fopenmp } }
+ // { dg-options "-fopenmp -fsanitize=vptr -O0" }
+ 
+ struct A { int i; };
+ struct B : virtual A { void foo (); };
+ 
+ void
+ B::foo ()
+ {
+ #pragma omp sections lastprivate (i)
+   {
+     i = 0;
+   }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/warn/Wformat-2.C gcc-6.5.0/gcc/testsuite/g++.dg/warn/Wformat-2.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/warn/Wformat-2.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/warn/Wformat-2.C	Mon Jun 25 17:30:03 2018
***************
*** 0 ****
--- 1,17 ----
+ // PR c++/84076
+ // { dg-do compile }
+ // { dg-options "-Wformat" }
+ 
+ struct S { ~S (); };
+ struct T { T (); T (const T &); };
+ 
+ void
+ foo ()
+ {
+   S s;
+   T t;
+   __builtin_printf ("%s\n", s);	// { dg-warning "format '%s' expects argument of type 'char\\*', but argument 2 has type 'S'" }
+   __builtin_printf ("%s\n", t);	// { dg-warning "format '%s' expects argument of type 'char\\*', but argument 2 has type 'T'" }
+   __builtin_printf ("%s\n", &s);// { dg-warning "format '%s' expects argument of type 'char\\*', but argument 2 has type 'S\\*'" }
+   __builtin_printf ("%s\n", &t);// { dg-warning "format '%s' expects argument of type 'char\\*', but argument 2 has type 'T\\*'" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/warn/Wnonnull4.C gcc-6.5.0/gcc/testsuite/g++.dg/warn/Wnonnull4.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/warn/Wnonnull4.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/warn/Wnonnull4.C	Mon Jun 25 17:54:30 2018
***************
*** 0 ****
--- 1,21 ----
+ // PR c++/86210
+ // { dg-do compile }
+ // { dg-options "-Wnonnull" }
+ 
+ void *declared_not_defined (void *p) __attribute__((nonnull));
+ 
+ inline void *declared_and_defined (void *p) __attribute__((nonnull));
+ 
+ int
+ main ()
+ {
+   int *const p = 0;
+   declared_not_defined (p);	// { dg-warning "null argument where non-null required" }
+   declared_and_defined (p);	// { dg-warning "null argument where non-null required" }
+ }
+ 
+ void *
+ declared_and_defined (void *p)
+ {
+   return p;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/warn/deprecated-13.C gcc-6.5.0/gcc/testsuite/g++.dg/warn/deprecated-13.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/warn/deprecated-13.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/g++.dg/warn/deprecated-13.C	Mon Jun 25 17:32:10 2018
***************
*** 0 ****
--- 1,44 ----
+ // PR c++/84222
+ // { dg-do compile }
+ 
+ struct __attribute__((deprecated)) C {		// { dg-message "declared here" }
+   C () {}
+   C (const C &);				// { dg-bogus "'C' is deprecated" }
+   C (const C &x, const C &y) { C z = x; }	// { dg-bogus "'C' is deprecated" }
+   void foo (const C &x, const C &y);		// { dg-bogus "'C' is deprecated" }
+ };
+ 
+ void
+ C::foo (const C &x, const C &y)			// { dg-bogus "'C' is deprecated" }
+ {
+   C z = x;					// { dg-bogus "'C' is deprecated" }
+ }
+ 
+ void
+ bar (const C &x, const C &y)			// { dg-warning "'C' is deprecated" }
+ {
+   C z = x;					// { dg-warning "'C' is deprecated" }
+ }
+ 
+ template <int N>
+ struct __attribute__((deprecated)) D {		// { dg-message "declared here" }
+   D () {}
+   D (const D &);				// { dg-bogus "is deprecated" }
+   D (const D &x, const D &y) { D z = x; }	// { dg-bogus "is deprecated" }
+   void foo (const D &x, const D &y);		// { dg-bogus "is deprecated" }
+ };
+ 
+ template <int N>
+ void
+ D<N>::foo					// { dg-bogus "is deprecated" "" { xfail *-*-* } }
+ (const D &x, const D &y)			// { dg-bogus "is deprecated" }
+ {
+   D z = x;					// { dg-bogus "is deprecated" }
+ }
+ 
+ template <int N>
+ void
+ bar (const D<N> &x, const D<N> &y)		// { dg-warning "is deprecated" }
+ {
+   D<N> z = x;					// { dg-warning "is deprecated" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/warn/deprecated-6.C gcc-6.5.0/gcc/testsuite/g++.dg/warn/deprecated-6.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/warn/deprecated-6.C	Tue Nov 18 13:36:38 2014
--- gcc-6.5.0/gcc/testsuite/g++.dg/warn/deprecated-6.C	Mon Jun 25 17:32:10 2018
*************** T *p3;				// { dg-warning "'T' is deprec
*** 98,104 ****
  
  inline void T::member1(int) {}
  
! int T::member3(T *p)		// { dg-warning "'T' is deprecated: Please avoid T" }
  {
    p->member1(1);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated: Please avoid member1" "" } */
    (*p).member1(2);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated: Please avoid member1" "" } */
--- 98,104 ----
  
  inline void T::member1(int) {}
  
! int T::member3(T *p)		// { dg-bogus "'T' is deprecated: Please avoid T" }
  {
    p->member1(1);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated: Please avoid member1" "" } */
    (*p).member1(2);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated: Please avoid member1" "" } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/g++.dg/warn/deprecated.C gcc-6.5.0/gcc/testsuite/g++.dg/warn/deprecated.C
*** gcc-6.4.0/gcc/testsuite/g++.dg/warn/deprecated.C	Sun Sep 23 15:27:10 2007
--- gcc-6.5.0/gcc/testsuite/g++.dg/warn/deprecated.C	Mon Jun 25 17:32:10 2018
*************** T *p3;				// { dg-warning "'T' is deprec
*** 102,108 ****
  
  inline void T::member1(int) {}
  
! int T::member3(T *p)		// { dg-warning "'T' is deprecated" }
  {
    p->member1(1);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated" "" } */
    (*p).member1(2);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated" "" } */
--- 102,108 ----
  
  inline void T::member1(int) {}
  
! int T::member3(T *p)		// { dg-bogus "'T' is deprecated" }
  {
    p->member1(1);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated" "" } */
    (*p).member1(2);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated" "" } */
*************** int T::member3(T *p)		// { dg-warning "'
*** 113,117 ****
    return f1(); 				/* { dg-warning "'INT1 f1\\(\\)' is deprecated" "" } */
  }
  #endif
- 
- 
--- 113,115 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr82096.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr82096.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr82096.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr82096.c	Wed Feb 21 12:50:31 2018
***************
*** 0 ****
--- 1,11 ----
+ /* { dg-require-effective-target arm_arch_v5t_ok { target arm*-*-* } } */
+ /* { dg-skip-if "Do not combine float-abi values" { arm*-*-* } { "-mfloat-abi=*" } { "-mfloat-abi=soft" } } */
+ /* { dg-additional-options "-march=armv5t -mthumb -mfloat-abi=soft" { target arm*-*-* } } */
+ 
+ static long long AL[24];
+ 
+ int
+ check_ok (void)
+ {
+   return (__sync_bool_compare_and_swap (AL+1, 0x200000003ll, 0x1234567890ll));
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr82337.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr82337.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr82337.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr82337.c	Mon Oct  2 18:09:20 2017
***************
*** 0 ****
--- 1,25 ----
+ /* PR82337: SLSR needs to prevent abnormal SSA names from
+    serving as a basis. */
+ char *a, *b, *c;
+ 
+ struct d {
+   short e;
+   char f[];
+ };
+ 
+ extern void j (void);
+ 
+ void
+ g() {
+   struct d *h;
+   char *i;
+   int d;
+   do {
+     i = h->f + d;
+     20 ? j() : 0;
+     i = c;
+     if (__builtin_setjmp (h))
+       b = h->f + d;
+     d = (int)(*i);
+   } while (a);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr82549.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr82549.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr82549.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr82549.c	Tue Oct 17 14:53:13 2017
***************
*** 0 ****
--- 1,9 ----
+ /* PR tree-optimization/82549 */
+ 
+ int a, b[1];
+ 
+ int
+ main ()
+ {
+   return !a || b[-2] || b[-2];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr84425.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr84425.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr84425.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr84425.c	Mon Jun 25 17:22:32 2018
***************
*** 0 ****
--- 1,17 ----
+ /* PR ipa/84425 */
+ 
+ void bar (int);
+ 
+ void
+ foo (int x)
+ {
+   if (x < 5)
+     bar (x);
+ }
+ 
+ __attribute__((optimize(0))) void
+ bar (int x)
+ {
+   if (x > 10)
+     foo (x);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr85945.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr85945.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/compile/pr85945.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/compile/pr85945.c	Mon Jun 25 17:52:28 2018
***************
*** 0 ****
--- 1,16 ----
+ /* PR target/85945 */
+ 
+ typedef float V __attribute__((vector_size(16)));
+ union U { V v; float f[4]; };
+ int f;
+ float g[4];
+ 
+ void
+ foo (void)
+ {
+   V d;
+   union U i;
+   i.v = d;
+   for (f = 0; f < 4; f++)
+     g[f] = i.f[f];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr81503.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr81503.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr81503.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr81503.c	Tue Sep  5 21:50:38 2017
***************
*** 0 ****
--- 1,15 ----
+ unsigned short a = 41461;
+ unsigned short b = 3419;
+ int c = 0;
+ 
+ void foo() {
+   if (a + b * ~(0 != 5))
+     c = -~(b * ~(0 != 5)) + 2147483647;
+ }
+ 
+ int main() {
+   foo();
+   if (c != 2147476810)
+     return -1;
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr81555.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr81555.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr81555.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr81555.c	Thu Jul 27 09:32:33 2017
***************
*** 0 ****
--- 1,24 ----
+ /* PR tree-optimization/81555 */
+ 
+ unsigned int a = 1, d = 0xfaeU, e = 0xe376U;
+ _Bool b = 0, f = 1;
+ unsigned char g = 1;
+ 
+ void
+ foo (void)
+ {
+   _Bool c = a != b;
+   if (c)
+     f = 0;
+   if (e & c & (unsigned char)d & c)
+     g = 0;
+ }
+ 
+ int
+ main ()
+ {
+   foo ();
+   if (f || g != 1)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr81556.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr81556.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr81556.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr81556.c	Thu Jul 27 09:32:33 2017
***************
*** 0 ****
--- 1,23 ----
+ /* PR tree-optimization/81556 */
+ 
+ unsigned long long int b = 0xb82ff73c5c020599ULL;
+ unsigned long long int c = 0xd4e8188733a29d8eULL;
+ unsigned long long int d = 2, f = 1, g = 0, h = 0;
+ unsigned long long int e = 0xf27771784749f32bULL;
+ 
+ __attribute__((noinline, noclone)) void
+ foo (void)
+ {
+   _Bool a = d > 1;
+   g = f % ((d > 1) << 9);
+   h = a & (e & (a & b & c));
+ }
+ 
+ int
+ main ()
+ {
+   foo ();
+   if (g != 1 || h != 0)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr82192.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr82192.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr82192.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr82192.c	Mon Jun 25 16:45:10 2018
***************
*** 0 ****
--- 1,22 ----
+ /* PR rtl-optimization/82192 */
+ 
+ unsigned long long int a = 0x95dd3d896f7422e2ULL;
+ struct S { unsigned int m : 13; } b;
+ 
+ __attribute__((noinline, noclone)) void
+ foo (void)
+ {
+   b.m = ((unsigned) a) >> (0x644eee9667723bf7LL
+ 			   | a & ~0xdee27af8U) - 0x644eee9667763bd8LL;
+ }
+ 
+ int
+ main ()
+ {
+   if (__INT_MAX__ != 0x7fffffffULL)
+     return 0;
+   foo ();
+   if (b.m != 0)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr82210.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr82210.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr82210.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr82210.c	Mon Jun 25 17:21:47 2018
***************
*** 0 ****
--- 1,26 ----
+ /* PR c/82210 */
+ 
+ void
+ foo (int size)
+ {
+   int i;
+   struct S {
+     __attribute__((aligned (16))) struct T { short c; } a[size];
+     int b[size];
+   } s;
+ 
+   for (i = 0; i < size; i++)
+     s.a[i].c = 0x1234;
+   for (i = 0; i < size; i++)
+     s.b[i] = 0;
+   for (i = 0; i < size; i++)
+     if (s.a[i].c != 0x1234 || s.b[i] != 0)
+       __builtin_abort ();
+ }
+ 
+ int
+ main ()
+ {
+   foo (15);
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr84748.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr84748.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr84748.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr84748.c	Tue Apr 10 13:05:24 2018
***************
*** 0 ****
--- 1,34 ----
+ /* { dg-require-effective-target int128 } */
+ 
+ typedef unsigned __int128 u128;
+ 
+ int a, c, d;
+ u128 b;
+ 
+ unsigned long long g0, g1;
+ 
+ void
+ store (unsigned long long a0, unsigned long long a1)
+ {
+   g0 = a0;
+   g1 = a1;
+ }
+ 
+ void
+ foo (void)
+ {
+   b += a;
+   c = d != 84347;
+   b /= c;
+   u128 x = b;
+   store (x >> 0, x >> 64);
+ }
+ 
+ int
+ main (void)
+ {
+   foo ();
+   if (g0 != 0 || g1 != 0)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr86231.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr86231.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr86231.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr86231.c	Mon Jun 25 17:53:50 2018
***************
*** 0 ****
--- 1,30 ----
+ /* PR tree-optimization/86231 */
+ 
+ #define ONE ((void *) 1)
+ #define TWO ((void *) 2)
+ 
+ __attribute__((noinline, noclone)) int
+ foo (void *p, int x)
+ {
+   if (p == ONE) return 0;
+   if (!p)
+     p = x ? TWO : ONE;
+   return p == ONE ? 0 : 1;
+ }
+ 
+ int v[8];
+ 
+ int
+ main ()
+ {
+   if (foo ((void *) 0, 0) != 0
+       || foo ((void *) 0, 1) != 1
+       || foo (ONE, 0) != 0
+       || foo (ONE, 1) != 0
+       || foo (TWO, 0) != 1
+       || foo (TWO, 1) != 1
+       || foo (&v[7], 0) != 1
+       || foo (&v[7], 1) != 1)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr87623.c gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr87623.c
*** gcc-6.4.0/gcc/testsuite/gcc.c-torture/execute/pr87623.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.c-torture/execute/pr87623.c	Wed Oct 17 17:54:26 2018
***************
*** 0 ****
--- 1,34 ----
+ /* PR middle-end/87623 */
+ /* Testcase by George Thopas <george.thopas@gmail.com> */
+ 
+ struct be {
+     unsigned short pad[1];
+     unsigned char  a;
+     unsigned char  b;
+ } __attribute__((scalar_storage_order("big-endian")));
+ 
+ typedef struct be t_be;
+ 
+ struct le {
+     unsigned short pad[3];
+     unsigned char  a;
+     unsigned char  b;
+ };
+ 
+ typedef struct le t_le;
+ 
+ int a_or_b_different(t_be *x,t_le *y)
+ {
+    return (x->a != y->a) || (x->b != y->b);
+ }
+ 
+ int main (void)
+ {
+    t_be x = { .a=1, .b=2  };
+    t_le y = { .a=1, .b=2  };
+   
+    if (a_or_b_different(&x,&y))
+        __builtin_abort ();
+ 
+    return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/builtin-object-size-18.c gcc-6.5.0/gcc/testsuite/gcc.dg/builtin-object-size-18.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/builtin-object-size-18.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/builtin-object-size-18.c	Mon Jun 25 16:53:57 2018
***************
*** 0 ****
--- 1,15 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -fdump-tree-optimized" } */
+ /* __stpncpy_chk could return buf up to buf + 64, so
+    the minimum object size might be far smaller than 64.  */
+ /* { dg-final { scan-tree-dump-not "return 64;" "optimized" } } */
+ 
+ typedef __SIZE_TYPE__ size_t;
+ 
+ size_t
+ foo (const char *p, size_t s, size_t t)
+ {
+   char buf[64];
+   char *q = __builtin___stpncpy_chk (buf, p, s, t);
+   return __builtin_object_size (q, 2);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c gcc-6.5.0/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c	Sat Apr  9 17:09:43 2016
--- gcc-6.5.0/gcc/testsuite/gcc.dg/debug/dwarf2/prod-options.c	Mon Feb  5 22:37:13 2018
***************
*** 3,11 ****
     the build not reproducible.  Other skipped options could be tested here
     as well.  */
  /* { dg-do compile } */
! /* { dg-options "-O2 -gdwarf -dA -fdebug-prefix-map=a=b" } */
! /* { dg-final { scan-assembler "DW_AT_producer: \"GNU C" { target { { { ! *-*-solaris2* } || gas } && { ! hppa*64*-*-* } } } } } */
! /* { dg-final { scan-assembler "\"GNU C\[^\\n\\r\]+ DW_AT_producer" { target { { *-*-solaris2* && { ! gas } } || { hppa*64*-*-* } } } } } */
  /* { dg-final { scan-assembler-not "debug-prefix-map" } } */
  
  void func (void)
--- 3,10 ----
     the build not reproducible.  Other skipped options could be tested here
     as well.  */
  /* { dg-do compile } */
! /* { dg-options "-O2 -gdwarf -dA -fno-merge-debug-strings -fdebug-prefix-map=a=b" } */
! /* { dg-final { scan-assembler "\"GNU C\[^\\n\\r\]+ DW_AT_producer" } } */
  /* { dg-final { scan-assembler-not "debug-prefix-map" } } */
  
  void func (void)
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/debug/pr85252.c gcc-6.5.0/gcc/testsuite/gcc.dg/debug/pr85252.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/debug/pr85252.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/debug/pr85252.c	Mon Jun 25 17:44:31 2018
***************
*** 0 ****
--- 1,11 ----
+ /* PR debug/85252 */
+ /* { dg-do compile } */
+ 
+ void
+ foo (void)
+ {
+   static char a[0] = "";
+   static char b[0] = "b";	/* { dg-warning "initializer-string for array of chars is too long" } */
+   static char c[1] = "c";
+   static char d[1] = "de";	/* { dg-warning "initializer-string for array of chars is too long" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/gomp/pr81768-1.c gcc-6.5.0/gcc/testsuite/gcc.dg/gomp/pr81768-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/gomp/pr81768-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/gomp/pr81768-1.c	Fri Sep 15 21:38:43 2017
***************
*** 0 ****
--- 1,15 ----
+ /* PR middle-end/81768 */
+ /* { dg-do compile } */
+ 
+ float b[10][15][10];
+ 
+ void
+ foo (void)
+ {
+   float *i;
+ #pragma omp target parallel for simd schedule(static, 32) collapse(3)
+   for (i = &b[0][0][0]; i < &b[0][0][10]; i++)
+     for (float *j = &b[0][15][0]; j > &b[0][0][0]; j -= 10)
+       for (float *k = &b[0][0][10]; k > &b[0][0][0]; --k)
+ 	b[i - &b[0][0][0]][(j - &b[0][0][0]) / 10 - 1][(k - &b[0][0][0]) - 1] -= 3.5;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/gomp/pr81768-2.c gcc-6.5.0/gcc/testsuite/gcc.dg/gomp/pr81768-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/gomp/pr81768-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/gomp/pr81768-2.c	Fri Sep 15 21:39:36 2017
***************
*** 0 ****
--- 1,15 ----
+ /* PR middle-end/81768 */
+ /* { dg-do compile } */
+ 
+ float b[10][15][10];
+ 
+ void
+ foo (void)
+ {
+   float *i;
+ #pragma omp target parallel for schedule(static, 32) collapse(3)
+   for (i = &b[0][0][0]; i < &b[0][0][10]; i++)
+     for (float *j = &b[0][15][0]; j > &b[0][0][0]; j -= 10)
+       for (float *k = &b[0][0][10]; k > &b[0][0][0]; --k)
+         b[i - &b[0][0][0]][(j - &b[0][0][0]) / 10 - 1][(k - &b[0][0][0]) - 1] -= 3.5;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/ipa/pr81696.c gcc-6.5.0/gcc/testsuite/gcc.dg/ipa/pr81696.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/ipa/pr81696.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/ipa/pr81696.c	Fri Sep 15 09:15:32 2017
***************
*** 0 ****
--- 1,26 ----
+ /* { dg-options "-O2 -fdump-ipa-icf-details"  } */
+ 
+ int
+ main (int argc, char **argv)
+ {
+   __label__ lab4, lab5, lab6;
+ 
+   void foo (void) { goto lab4; }
+   void foo2 (void) { goto lab4; }
+   void bar (void) { goto lab5; }
+   void baz (void) { goto lab6; }
+ 
+   if (argc)
+     foo ();
+   else
+     foo2 ();
+ 
+  lab4:;
+   bar ();
+  lab5:;
+   baz ();
+  lab6:;
+   return 0;
+ }
+ 
+ /* { dg-final { scan-ipa-dump "Equal symbols: 1" "icf"  } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/ipa/pr82001.c gcc-6.5.0/gcc/testsuite/gcc.dg/ipa/pr82001.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/ipa/pr82001.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/ipa/pr82001.c	Fri Sep 15 09:21:42 2017
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+ /* { dg-options "-O2 -fdump-ipa-icf-details"  } */
+ 
+ int
+ mullo (int a, int b)
+ {
+   asm("mul %%edx   # %%1 was %1"
+       : "+"
+ 	"a"(a),
+ 	"+d"(b));
+   return a;
+ }
+ 
+ int
+ mulhi (int a, int b)
+ {
+   asm("mul %%edx   # %%1 was %1" : "+d"(a), "+a"(b));
+   return a;
+ }
+ 
+ /* { dg-final { scan-ipa-dump "Equal symbols: 0" "icf"  } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/loop-8.c gcc-6.5.0/gcc/testsuite/gcc.dg/loop-8.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/loop-8.c	Sat Apr  9 17:15:15 2016
--- gcc-6.5.0/gcc/testsuite/gcc.dg/loop-8.c	Fri Jul 14 16:58:00 2017
***************
*** 1,6 ****
  /* { dg-do compile } */
  /* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */
! /* { dg-skip-if "unexpected IV" { "hppa*-*-* visium-*-*" } { "*" } { "" } } */
  
  void
  f (int *a, int *b)
--- 1,6 ----
  /* { dg-do compile } */
  /* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */
! /* { dg-skip-if "unexpected IV" { "hppa*-*-* visium-*-* powerpc*-*-*" } { "*" } { "" } } */
  
  void
  f (int *a, int *b)
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr81440.h gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr81440.h
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr81440.h	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr81440.h	Wed Mar  7 09:47:46 2018
***************
*** 0 ****
--- 1,4 ----
+ typedef struct {
+   int i;
+   int ints[];
+ } struct_t;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr81440_0.c gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr81440_0.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr81440_0.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr81440_0.c	Wed Mar  7 09:47:46 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-lto-do link } */
+ 
+ #include "pr81440.h"
+ 
+ extern struct_t my_struct;
+ 
+ int main() {
+  return my_struct.ints[0];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr81440_1.c gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr81440_1.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr81440_1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr81440_1.c	Wed Mar  7 09:47:46 2018
***************
*** 0 ****
--- 1,6 ----
+ #include "pr81440.h"
+ 
+ struct_t my_struct = {
+  20,
+  { 1, 2 }
+ };
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr83954.h gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr83954.h
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr83954.h	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr83954.h	Wed Mar  7 09:43:23 2018
***************
*** 0 ****
--- 1,3 ----
+ struct foo;
+ extern struct foo *FOO_PTR_ARR[1];
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr83954_0.c gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr83954_0.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr83954_0.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr83954_0.c	Wed Mar  7 09:43:23 2018
***************
*** 0 ****
--- 1,8 ----
+ /* { dg-lto-do link } */
+ #include "pr83954.h"
+ 
+ int main() {
+   // just to prevent symbol removal
+   FOO_PTR_ARR[1] = 0;
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr83954_1.c gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr83954_1.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr83954_1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr83954_1.c	Wed Mar  7 09:43:23 2018
***************
*** 0 ****
--- 1,7 ----
+ #include "pr83954.h"
+ 
+ struct foo {
+  int x;
+ };
+ struct foo *FOO_PTR_ARR[1] = { 0 };
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr85248_0.c gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr85248_0.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr85248_0.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr85248_0.c	Wed Apr 25 07:40:27 2018
***************
*** 0 ****
--- 1,45 ----
+ /* PR lto/85248 */
+ /* { dg-lto-do run } */
+ /* { dg-lto-options { { -flto -O2 } } } */
+ 
+ extern void test_alias (int s, int e) __asm__ (__USER_LABEL_PREFIX__ "test");
+ extern void test_noreturn (int s, int e) __asm__ (__USER_LABEL_PREFIX__ "test")
+   __attribute__ ((__noreturn__));
+ 
+ extern inline __attribute__ ((__always_inline__, __gnu_inline__)) void
+ test (int s, int e)
+ {
+   if (__builtin_constant_p (s) && s != 0)
+     test_noreturn (s, e);
+   else
+     test_alias (s, e);
+ }
+ 
+ int
+ foo (void)
+ {
+   static volatile int a;
+   return a;
+ }
+ 
+ static void
+ bar (void)
+ {
+   test (0, 1);
+   __builtin_exit (0);
+ }
+ 
+ static void
+ baz ()
+ {
+   test (1, 0);
+ }
+ 
+ int
+ main ()
+ {
+   if (foo ())
+     baz ();
+   bar ();
+   __builtin_abort ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr85248_1.c gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr85248_1.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/lto/pr85248_1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/lto/pr85248_1.c	Wed Apr 25 07:40:27 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-options "-fno-lto" } */
+ 
+ void
+ test (int s, int e)
+ {
+   asm volatile ("" : "+g" (s), "+g" (e) : : "memory");
+   if (s)
+     __builtin_abort ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/opts-8.c gcc-6.5.0/gcc/testsuite/gcc.dg/opts-8.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/opts-8.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/opts-8.c	Mon Jun 25 16:50:58 2018
***************
*** 0 ****
--- 1,6 ----
+ /* PR target/82880 */
+ /* Test we don't ICE or hang.  */
+ /* { dg-do compile } */
+ /* { dg-options "--help=target --help=optimizers" } */
+ /* { dg-allow-blank-lines-in-output 1 } */
+ /* { dg-prune-output ".*" } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr79499.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr79499.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr79499.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr79499.c	Fri Sep 15 21:32:05 2017
***************
*** 0 ****
--- 1,13 ----
+ /* PR middle-end/79499 */
+ /* { dg-do compile { target split_stack } } */
+ /* { dg-options "-O2 -fsplit-stack -fno-omit-frame-pointer" } */
+ 
+ struct S { struct S *a, *b; };
+ 
+ void
+ foo (struct S *x)
+ {
+   do
+     x->b = x->a;
+   while (x = x->a);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr80747.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr80747.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr80747.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr80747.c	Mon Jun 25 17:05:01 2018
***************
*** 0 ****
--- 1,18 ----
+ /* PR rtl-optimization/80747 */
+ /* { dg-do compile } */
+ /* { dg-options "-fprofile-use -freorder-blocks-and-partition -O1 -foptimize-sibling-calls" } */
+ 
+ int
+ foo (int a)
+ {
+   int r;
+   if (a & 1)
+     r = foo (a - 1);
+   else if (a)
+     r = foo (a - 2);
+   else
+     return 0;
+   if (r)
+     r = r;
+   return r;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr81192.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr81192.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr81192.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr81192.c	Thu Jul 13 05:42:15 2017
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-options "-Os -fdump-tree-pre-details" } */
+ 
+ unsigned a;
+ int b, c;
+ 
+ static int
+ fn1 (int p1, int p2)
+ {
+   return p1 > 2147483647 - p2 ? p1 : p1 + p2;
+ }
+ 
+ void
+ fn2 (void)
+ {
+   int j;
+   a = 30;
+   for (; a;)
+     for (; c; b = fn1 (j, 1))
+       ;
+ }
+ 
+ /* { dg-final { scan-tree-dump-times "(?n)find_duplicates: <bb .*> duplicate of <bb .*>" 1 "pre" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr81621.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr81621.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr81621.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr81621.c	Fri Sep 15 21:35:48 2017
***************
*** 0 ****
--- 1,5 ----
+ /* PR target/81621 */
+ /* { dg-do compile { target freorder } } */
+ /* { dg-options "-Og -fno-split-wide-types -freorder-blocks-and-partition" } */
+ 
+ #include "graphite/scop-10.c"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr82112.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr82112.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr82112.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr82112.c	Fri Sep 15 21:40:51 2017
***************
*** 0 ****
--- 1,21 ----
+ /* PR target/82112 */
+ /* { dg-do compile } */
+ /* { dg-options "-std=gnu90" } */
+ 
+ struct S { int a[10]; } bar (void);
+ int b, c;
+ 
+ void
+ foo (void)
+ {
+   __atomic_load (bar ().a, &b, __ATOMIC_ACQUIRE);	/* { dg-error "argument 1 of .__atomic_load. must be a non-void pointer type" } */
+   __atomic_load (&b, bar ().a, __ATOMIC_ACQUIRE);	/* { dg-error "argument 2 of .__atomic_load. must be a pointer type" } */
+   __atomic_store (bar ().a, &b, __ATOMIC_SEQ_CST);	/* { dg-error "argument 1 of .__atomic_store. must be a non-void pointer type" } */
+   __atomic_store (&b, bar ().a, __ATOMIC_SEQ_CST);	/* { dg-error "argument 2 of .__atomic_store. must be a pointer type" } */
+   __atomic_exchange (bar ().a, &b, &c, __ATOMIC_RELAXED);	/* { dg-error "argument 1 of .__atomic_exchange. must be a non-void pointer type" } */
+   __atomic_exchange (&b, bar ().a, &c, __ATOMIC_RELAXED);	/* { dg-error "argument 2 of .__atomic_exchange. must be a pointer type" } */
+   __atomic_exchange (&b, &c, bar ().a, __ATOMIC_RELAXED);	/* { dg-error "argument 3 of .__atomic_exchange. must be a pointer type" } */
+   __atomic_compare_exchange (bar ().a, &b, &c, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED);	/* { dg-error "argument 1 of .__atomic_compare_exchange. must be a non-void pointer type" } */
+   __atomic_compare_exchange (&b, bar ().a, &c, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED);	/* { dg-error "argument 2 of .__atomic_compare_exchange. must be a pointer type" } */
+   __atomic_compare_exchange (&b, &c, bar ().a, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED);	/* { dg-error "argument 3 of .__atomic_compare_exchange. must be a pointer type" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr82274-1.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr82274-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr82274-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr82274-1.c	Fri Oct 13 20:14:34 2017
***************
*** 0 ****
--- 1,16 ----
+ /* PR target/82274 */
+ /* { dg-do run } */
+ /* { dg-shouldfail "trapv" } */
+ /* { dg-options "-ftrapv" } */
+ 
+ int
+ main ()
+ {
+ #ifdef __SIZEOF_INT128__
+   volatile __int128 m = -(((__int128) 1) << (__CHAR_BIT__ * __SIZEOF_INT128__ / 2));
+ #else
+   volatile long long m = -(1LL << (__CHAR_BIT__ * __SIZEOF_LONG_LONG__ / 2));
+ #endif
+   m = m * m;
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr82274-2.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr82274-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr82274-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr82274-2.c	Fri Oct 13 20:14:34 2017
***************
*** 0 ****
--- 1,22 ----
+ /* PR target/82274 */
+ /* { dg-do run } */
+ /* { dg-options "-O2" } */
+ 
+ int
+ main ()
+ {
+ #ifdef __SIZEOF_INT128__
+   __int128 m = -(((__int128) 1) << (__CHAR_BIT__ * __SIZEOF_INT128__ / 2));
+   volatile __int128 mv = m;
+   __int128 r;
+ #else
+   long long m = -(1LL << (__CHAR_BIT__ * __SIZEOF_LONG_LONG__ / 2));
+   volatile long long mv = m;
+   long long r;
+ #endif
+   if (!__builtin_mul_overflow (mv, mv, &r))
+     __builtin_abort ();
+   if (!__builtin_mul_overflow (m, m, &r))
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr82765.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr82765.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr82765.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr82765.c	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,5 ----
+ /* { dg-do compile } */
+ /* { dg-options "-Os -w" } */
+ 
+ int a[1][1];
+ int main() { int *b[] = {a, a[1820408606019012862278468], a, a, a}; }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr82975.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr82975.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr82975.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr82975.c	Tue Jan  9 11:38:04 2018
***************
*** 0 ****
--- 1,20 ----
+ /* PR target/82975.  */
+ /* { dg-do compile } */
+ /* { dg-options "-fno-sched-pressure -O2" } */
+ /* { dg-additional-options "-mtune=cortex-a57" { target arm*-*-* aarch64*-*-* } } */
+ 
+ typedef __SIZE_TYPE__ size_t;
+ 
+ struct S1
+ {
+   char pad1;
+   char val;
+   short pad2;
+ };
+ 
+ extern char t[256];
+ 
+ void foo (struct S1 a, size_t i)
+ {
+   t[i] = a.val;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83424.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83424.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83424.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83424.c	Tue Jan 16 16:30:43 2018
***************
*** 0 ****
--- 1,30 ----
+ /* PR rtl-optimization/83424 */
+ /* { dg-do run { target int128 } } */
+ /* { dg-options "-O -fno-tree-ccp -fno-tree-coalesce-vars" } */
+ 
+ typedef unsigned char u8;
+ typedef unsigned int u32;
+ typedef unsigned __int128 u128;
+ 
+ u32 a, c;
+ u8 b;
+ 
+ static u128 __attribute__ ((noinline, noclone))
+ foo (u128 p)
+ {
+   u8 x = ~b;
+   p &= c;
+   x *= -p;
+   x &= a == 0;
+   x >>= 1;
+   return p + x;
+ }
+ 
+ int
+ main (void)
+ {
+   u128 x = foo (0);
+   if (x != 0)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83512.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83512.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83512.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83512.c	Mon Jun 25 17:05:01 2018
***************
*** 0 ****
--- 1,16 ----
+ /* PR rtl-optimization/83512 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -freorder-blocks-algorithm=simple" } */
+ 
+ int a;
+ 
+ void
+ foo (int *x)
+ {
+   for (;;)
+     {
+       for (*x = 0; *x < 1; *x++)
+ 	;
+       ++a;
+     }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83521.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83521.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83521.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83521.c	Mon Jun 25 17:03:26 2018
***************
*** 0 ****
--- 1,10 ----
+ /* PR tree-optimization/83521 */
+ /* { dg-do compile } */
+ /* { dg-options "-O1 -fno-tree-forwprop" } */
+ 
+ int
+ foo (unsigned int x, int y)
+ {
+   int *z = (int *)&x;
+   return (y == 0) ? y : *z;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83605.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83605.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83605.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83605.c	Mon Jun 25 17:11:05 2018
***************
*** 0 ****
--- 1,20 ----
+ /* PR tree-optimization/83605 */
+ /* { dg-do compile } */
+ /* { dg-options "-O1 -ftrapv -fexceptions -fnon-call-exceptions" } */
+ 
+ int a;
+ 
+ int
+ foo (int x)
+ {
+   int b = a;
+   {
+     int c;
+     int *d = (x == 0) ? &c : &b;
+ 
+     for (a = 0; a < 2; ++a)
+       c = (x + b) < a;
+ 
+     return *d;
+   }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83623.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83623.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83623.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83623.c	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,12 ----
+ /* PR middle-end/83623 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+ /* { dg-additional-options "-mmovbe" { target i?86-*-* x86_64-*-* } } */
+ 
+ unsigned short __attribute__ ((__vector_size__ (16))) x;
+ 
+ void
+ foo (void)
+ {
+   x = x << 8 | x >> 8;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83930.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83930.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83930.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83930.c	Mon Jun 25 17:13:04 2018
***************
*** 0 ****
--- 1,17 ----
+ /* PR target/83930 */
+ /* { dg-do compile } */
+ /* { dg-options "-Og -fno-tree-ccp -w" } */
+ 
+ unsigned __attribute__ ((__vector_size__ (16))) v;
+ 
+ static inline void
+ bar (unsigned char d)
+ {
+   v /= d;
+ }
+ 
+ __attribute__ ((always_inline)) void
+ foo (void)
+ {
+   bar (4);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr83986.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr83986.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr83986.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr83986.c	Mon Jun 25 17:19:13 2018
***************
*** 0 ****
--- 1,14 ----
+ /* PR rtl-optimization/83986 */
+ /* { dg-do compile } */
+ /* { dg-options "-g -O2 -fsched2-use-superblocks -funwind-tables --param max-pending-list-length=1" } */
+ 
+ int v;
+ 
+ int
+ foo (int x)
+ {
+   v &= !!v && !!x;
+   if (v != 0)
+     foo (0);
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84607.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84607.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84607.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84607.c	Thu Jun 21 09:50:36 2018
***************
*** 0 ****
--- 1,16 ----
+ /* { dg-do run } */
+ 
+ extern void exit(int);
+ extern void abort(void);
+ int a[10];
+ int foo()
+ {
+   exit (0);
+   return 0;
+ }
+ int main()
+ {
+   if (&a[foo()])
+     abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84739.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84739.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84739.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84739.c	Mon Jun 25 17:28:32 2018
***************
*** 0 ****
--- 1,26 ----
+ /* PR tree-optimization/84739 */
+ /* { dg-do compile } */
+ /* { dg-require-weak "" } */
+ /* { dg-options "-O2 -w" } */
+ 
+ static void baz (void) __attribute__((weakref("bar")));
+ 
+ int
+ foo (int x, int y)
+ {
+   if (x)
+     y = 0;
+   if (y)
+     goto lab;
+   y = 0;
+ lab:
+   return y;
+ }
+ 
+ void
+ bar (int x, int y)
+ {
+   y = foo (x, y);
+   if (y != 0)
+     baz ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84772.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84772.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84772.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84772.c	Mon Jun 25 17:31:23 2018
***************
*** 0 ****
--- 1,13 ----
+ /* PR target/84772 */
+ /* { dg-do compile } */
+ /* { dg-options "-O -Wuninitialized" } */
+ 
+ #include <stdarg.h>
+ 
+ void
+ foo (int *x, int y, va_list ap)
+ {
+   __builtin_memset (x, 0, sizeof (int));
+   for (int i = 0; i < y; i++)
+     va_arg (ap, long double);			/* { dg-bogus "uninitialized" } */  
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84875.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84875.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84875.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84875.c	Mon Jun 25 17:36:14 2018
***************
*** 0 ****
--- 1,28 ----
+ /* PR debug/84875 */
+ /* { dg-do compile } */
+ /* { dg-options "-Os" } */
+ /* { dg-additional-options "-fpie" { target pie } } */
+ /* { dg-additional-options "-march=z196" { target s390*-*-* } } */
+ 
+ static long *a[100];
+ static int b[100];
+ long *c;
+ int d;
+ void foo (long *);
+ 
+ void
+ bar ()
+ {
+   long *g = c;
+   g--;
+   d = *g;
+   if (d)
+     if (b[d] < 8)
+       {
+ 	*(void **)g = a[d];
+ 	a[d] = g;
+ 	b[d]++;
+ 	return;
+       }
+   foo (g);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84899.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84899.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84899.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84899.c	Mon Jun 25 17:34:55 2018
***************
*** 0 ****
--- 1,12 ----
+ /* PR target/84899 */
+ /* { dg-do compile } */
+ /* { dg-options "-O -funroll-all-loops -fno-move-loop-invariants" } */
+ 
+ void
+ foo (int x)
+ {
+   int a = 1 / x, b = 0;
+ 
+   while ((a + b + 1) < x)
+     b = __INT_MAX__;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84941.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84941.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84941.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84941.c	Mon Jun 25 17:37:02 2018
***************
*** 0 ****
--- 1,10 ----
+ /* PR inline-asm/84941 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+ 
+ void
+ foo (void)
+ {
+   short *b[1] = { 0 };
+   asm volatile ("" : "=m,m" (b), "=r,r" (b) : "1,p" (b));
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84953.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84953.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84953.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84953.c	Mon Jun 25 17:35:29 2018
***************
*** 0 ****
--- 1,11 ----
+ /* PR c/84953 */
+ /* { dg-do compile } */
+ 
+ char *strpbrk (const char *, const char *);
+ 
+ char *
+ test (char *p)
+ {
+   p = strpbrk (p, "");	/* { dg-bogus "assignment discards 'const' qualifier from pointer target type" } */
+   return p;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr84956.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr84956.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr84956.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr84956.c	Thu Mar 22 11:01:15 2018
***************
*** 0 ****
--- 1,27 ----
+ /* { dg-options "-O2 -ftree-tail-merge" } */
+ 
+ char a;
+ int c;
+ unsigned b ();
+ 
+ unsigned
+ setjmp ()
+ {
+ }
+ 
+ static void
+ d ()
+ {
+   if (b ())
+     c = 3;
+ }
+ 
+ void
+ e ()
+ {
+   d ();
+   a && ({ setjmp (); });
+   a && ({ setjmp (); });
+   a && ({ setjmp (); });
+ }
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr85167.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr85167.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr85167.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr85167.c	Mon Jun 25 17:43:41 2018
***************
*** 0 ****
--- 1,16 ----
+ /* PR rtl-optimization/85167 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -w" } */
+ 
+ struct A { long b; };
+ int c, d, e;
+ int bar (void);
+ 
+ int
+ foo (void)
+ {
+   long g;
+   for (; g == c ? 0 : (e = 1); g = ((struct A *)g)->b)
+     if (bar ())
+       return d;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr85257.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr85257.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr85257.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr85257.c	Mon Jun 25 17:45:48 2018
***************
*** 0 ****
--- 1,20 ----
+ /* PR tree-optimization/85257 */
+ /* { dg-do run { target int128 } } */
+ /* { dg-options "-O2 -fno-tree-ccp" } */
+ 
+ typedef __int128 V __attribute__ ((__vector_size__ (16 * sizeof (__int128))));
+ 
+ __int128 __attribute__ ((noinline, noclone))
+ foo (void)
+ {
+   V v = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
+   return v[5];
+ }
+ 
+ int
+ main ()
+ {
+   if (foo () != 6)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr85300.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr85300.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr85300.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr85300.c	Mon Jun 25 17:47:56 2018
***************
*** 0 ****
--- 1,16 ----
+ /* PR rtl-optimization/85300 */
+ /* { dg-do compile } */
+ /* { dg-options "-O1 -g -funroll-all-loops -fno-tree-ter -fno-web" } */
+ 
+ void
+ foo (double x, unsigned char y)
+ {
+   while ((int) x < 1)
+     {
+       float a;
+ 
+       a = y | 0x100;
+       y = 0;
+       x = a;
+     }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr85859.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr85859.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr85859.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr85859.c	Mon Sep  3 10:14:52 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do run } */
+ /* { dg-options "-ftree-tail-merge -Wno-div-by-zero -O2 -fno-dce -fno-isolate-erroneous-paths-dereference -fno-tree-dce -fno-tree-vrp" } */
+ 
+ int b, c, d, e;
+ 
+ __attribute__ ((noinline, noclone))
+ int foo (short f)
+ {
+   f %= 0;
+   return f;
+ }
+ 
+ int
+ main (void)
+ {
+   b = (unsigned char) __builtin_parity (d);
+   e ? foo (0) : (long) &c;
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/pr87024.c gcc-6.5.0/gcc/testsuite/gcc.dg/pr87024.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/pr87024.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/pr87024.c	Mon Oct 15 10:50:57 2018
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O -fno-tree-dce" } */
+ 
+ static inline void __attribute__((always_inline))
+ mp ()
+ {
+   (void) __builtin_va_arg_pack_len ();
+ }
+ 
+ void
+ ui (void)
+ {
+   mp ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr57656.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr57656.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr57656.c	Tue Sep  3 10:00:06 2013
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr57656.c	Thu Jun 21 09:50:36 2018
***************
*** 1,5 ****
  /* { dg-do run } */
! /* { dg-options "-fstrict-overflow" } */
  
  int main (void)
  {
--- 1,5 ----
  /* { dg-do run } */
! /* { dg-additional-options "-fstrict-overflow" } */
  
  int main (void)
  {
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr60092.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr60092.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr60092.c	Thu Nov 19 22:05:03 2015
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr60092.c	Tue Nov 21 09:41:34 2017
***************
*** 4,10 ****
  /* { dg-skip-if "No undefined weak" { nvptx-*-* } { "*" } { "" } } */
  /* { dg-additional-options "-Wl,-undefined,dynamic_lookup" { target *-*-darwin* } } */
  /* { dg-additional-options "-Wl,-flat_namespace" { target *-*-darwin[89]* } } */
- /* { dg-xfail-run-if "posix_memalign modifies first arg on error" { *-*-solaris2.11* } { "-O0" } } */
  
  typedef __SIZE_TYPE__ size_t;
  extern int posix_memalign(void **memptr, size_t alignment, size_t size) __attribute__((weak));
--- 4,9 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr75964.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr75964.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr75964.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr75964.c	Tue Jul 25 11:55:44 2017
***************
*** 0 ****
--- 1,28 ----
+ /* { dg-do run } */
+ 
+ typedef __UINT8_TYPE__ uint8_t;
+ 
+ uint8_t __attribute__ ((noinline, noclone))
+ abs8 (uint8_t x)
+ {
+   if (x & 0x80)
+     x = -x;
+ 
+   if (x & 0x80)
+     x = 0x7f;
+ 
+   return x;
+ }
+ 
+ int
+ main (void)
+ {
+   if (abs8 (0) != 0
+       || abs8 (1) != 1
+       || abs8 (127) != 127
+       || abs8 (128) != 127
+       || abs8 (129) != 127
+       || abs8 (255) != 1)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr79732.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr79732.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr79732.c	Thu Mar 16 08:07:29 2017
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr79732.c	Sat Nov 11 16:42:36 2017
***************
*** 1,4 ****
--- 1,5 ----
  /* { dg-do link } */
+ /* { dg-require-alias "" } */
  
  int bar () __attribute__ ((alias ("foo")));
  void foo () { }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr80281.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr80281.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr80281.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr80281.c	Mon Sep 18 11:10:06 2017
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-run } */
+ /* { dg-require-effective-target int32plus } */
+ 
+ int
+ main ()
+ {
+   volatile int a = 0;
+   long long b = 2147483648LL;
+   int c = a % 2;
+   int x = ((int) -b + c) % -2147483647;
+   if (x != -1)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr80341.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr80341.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr80341.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr80341.c	Mon Sep 18 11:10:06 2017
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do run } */
+ /* { dg-additional-options "-Wno-overflow" } */
+ /* { dg-require-effective-target int32plus } */
+ 
+ const signed char c = -84;
+ signed char s;
+ 
+ void
+ foo ()
+ {
+   s = (unsigned short) c / -55;
+ }
+ 
+ int
+ main ()
+ {
+   foo ();
+   if (s != 90)
+     __builtin_abort ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82264.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82264.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82264.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82264.c	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ 
+ char a;
+ int c;
+ unsigned b ();
+ unsigned
+ setjmp ()
+ {
+ }
+ static void
+ d ()
+ {
+   if (b ())
+     c = 3;
+ }
+ void
+ e ()
+ {
+   d ();
+   a && ({ setjmp (); });
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82285.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82285.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82285.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82285.c	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,16 ----
+ /* { dg-do run } */
+ 
+ enum tst { first = 0, second = 1 };
+ 
+ int
+ main ()
+ {
+   enum tst data[16];
+ 
+   for (unsigned i = 0; i < 16; i++)
+     data[i] = (i < 5 ? second : first);
+ 
+   if (data[2] != second)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82402.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82402.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82402.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82402.c	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ 
+ typedef int jmp_buf[1];
+ 
+ extern void exit(int) __attribute__((__noreturn__));
+ extern int setjmpx(jmp_buf) __attribute__((__returns_twice__));
+ 
+ jmp_buf jbAnagram;
+ int a[6];
+ int d;
+ int b () { exit (1); }
+ int c () { b (); }
+ int e ()
+ {
+   int f = 0;
+   for (; f < 6; f++)
+     a[f] = d;
+   c ();
+   setjmpx (jbAnagram);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82697.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82697.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr82697.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr82697.c	Wed Jun 20 11:09:28 2018
***************
*** 0 ****
--- 1,23 ----
+ /* { dg-do run } */
+ 
+ __attribute__((noinline,noclone))
+ void test(int *pi, long *pl, int f)
+ {
+   *pl = 0;
+ 
+   *pi = 1;
+ 
+   if (f)
+     *pl = 2;
+ }
+ 
+ int main()
+ {
+   void *p = __builtin_malloc(sizeof (long));
+ 
+   test(p, p, 0);
+ 
+   if (*(int *)p != 1)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85244-1.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85244-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85244-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85244-1.c	Thu Jun 21 07:24:06 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do run } */
+ /* { dg-additional-sources "pr85244-2.c" } */
+ 
+ struct s {
+  long a;
+  int b;
+  int tab[];
+ };
+ 
+ extern const struct s val;
+ extern int idx;
+ extern void abort (void);
+ 
+ int main()
+ {
+   if (val.tab[0] != 42 || val.tab[1] != 1337 || val.tab[idx] != 1337)
+     abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85244-2.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85244-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85244-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85244-2.c	Thu Jun 21 07:24:06 2018
***************
*** 0 ****
--- 1,8 ----
+ struct s {
+     long a;
+     int b;
+     int tab[];
+ };
+ 
+ int idx = 1;
+ const struct s val = { 0, 0, { 42, 1337 } };
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85588.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85588.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85588.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85588.c	Thu Jun 21 09:50:36 2018
***************
*** 0 ****
--- 1,4 ----
+ /* { dg-do run } */
+ /* { dg-additional-options "-fwrapv" } */
+ 
+ #include "pr57656.c"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85989.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85989.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr85989.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr85989.c	Sat Jun 23 16:18:36 2018
***************
*** 0 ****
--- 1,31 ----
+ /* { dg-do run } */
+ 
+ #define N 9
+ 
+ void __attribute__((noinline, noclone))
+ f (double x, double y, double *res)
+ {
+   y = -y;
+   for (int i = 0; i < N; ++i)
+     {
+       double tmp = y;
+       y = x;
+       x = tmp;
+       res[i] = i;
+     }
+   res[N] = y * y;
+   res[N + 1] = x;
+ }
+ 
+ int
+ main (void)
+ {
+   double res[N + 2];
+   f (10, 20, res);
+   for (int i = 0; i < N; ++i)
+     if (res[i] != i)
+       __builtin_abort ();
+   if (res[N] != 100 || res[N + 1] != -20)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr86505.c gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr86505.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/torture/pr86505.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/torture/pr86505.c	Mon Oct 15 10:50:57 2018
***************
*** 0 ****
--- 1,32 ----
+ /* { dg-do run } */
+ 
+ static inline __attribute__(( __always_inline__)) int 
+ funA(unsigned int param, ...) 
+ { 
+   return __builtin_va_arg_pack_len(); 
+ }
+ 
+ static inline __attribute__(( __always_inline__)) int
+ funB(unsigned int param, ...)
+ { 
+   return funA(param,  2, 4, __builtin_va_arg_pack()); 
+ }
+ 
+ int 
+ testBuiltin(void) 
+ { 
+   int rc = funB(0,1,2); 
+   if (rc != 4)
+     return 1;
+   return 0;
+ }
+ 
+ int
+ main()
+ {
+   int rc = testBuiltin();
+   if (rc == 1)
+     __builtin_abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/tree-prof/pr66295.c gcc-6.5.0/gcc/testsuite/gcc.dg/tree-prof/pr66295.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/tree-prof/pr66295.c	Wed Mar 22 14:32:56 2017
--- gcc-6.5.0/gcc/testsuite/gcc.dg/tree-prof/pr66295.c	Thu Jun 21 07:24:06 2018
*************** foo (double *__restrict a, double *__res
*** 12,18 ****
  }
  
  double
! bar (double *__restrict a, double *__restrict b, int n)	/* { dg-error "attribute\[^\n\r]*foo\[^\n\r]* is unknown" } */
  {
    double s;
    int i;
--- 12,18 ----
  }
  
  double
! bar (double *__restrict a, double *__restrict b, int n)
  {
    double s;
    int i;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr82340.c gcc-6.5.0/gcc/testsuite/gcc.dg/tree-ssa/pr82340.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr82340.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/tree-ssa/pr82340.c	Mon Jun 25 16:43:59 2018
***************
*** 0 ****
--- 1,14 ----
+ /* PR c/82340 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -fdump-tree-ssa" } */
+ /* { dg-final { scan-tree-dump "D.\[0-9]*\\\[0\\\] ={v} 77;" "ssa" } } */
+ 
+ int
+ foo (void)
+ {
+   int i;
+   volatile char *p = (volatile char[1]) { 77 };
+   for (i = 1; i < 10; i++)
+     *p = 4;
+   return *p;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c gcc-6.5.0/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/tree-ssa/pr82726.c	Thu Feb  1 12:00:57 2018
***************
*** 0 ****
--- 1,26 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3 --param tree-reassoc-width=4" } */
+ /* { dg-additional-options "-mavx2" { target { x86_64-*-* i?86-*-* } } } */
+ 
+ #define N 40
+ #define M 128
+ unsigned int in[N+M];
+ unsigned short out[N];
+ 
+ /* Outer-loop vectorization. */
+ 
+ void
+ foo (){
+   int i,j;
+   unsigned int diff;
+ 
+   for (i = 0; i < N; i++) {
+     diff = 0;
+     for (j = 0; j < M; j+=8) {
+       diff += in[j+i];
+     }
+     out[i]=(unsigned short)diff;
+   }
+ 
+   return;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/tree-ssa/vrp119.c gcc-6.5.0/gcc/testsuite/gcc.dg/tree-ssa/vrp119.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/tree-ssa/vrp119.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/tree-ssa/vrp119.c	Mon Jun 25 17:53:50 2018
***************
*** 0 ****
--- 1,20 ----
+ /* PR tree-optimization/86231 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -fdump-tree-vrp1" } */
+ /* { dg-final { scan-tree-dump-not "link_error" "vrp1" } } */
+ 
+ int bar (int);
+ void link_error (void);
+ 
+ int
+ foo (int x, int y, int z)
+ {
+   if (x < 4 || x > 8) __builtin_unreachable ();
+   if (y >= 2 && y <= 6) __builtin_unreachable ();
+   /* x is [4, 8], y is ~[2, 6], resulting range of e should be ~[2, 3].  */
+   int e = (z ? x : y);
+   bar (bar (bar (bar (bar (bar (bar (bar (bar (bar (bar (bar (e))))))))))));
+   if (e == 2 || e == 3)
+     link_error ();
+   return e;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/bounds-3.c gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/bounds-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/bounds-3.c	Fri May  6 10:54:12 2016
--- gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/bounds-3.c	Mon Jun 25 17:24:42 2018
***************
*** 1,6 ****
  /* PR sanitizer/70875 */
  /* { dg-do run } */
! /* { dg-options "-fsanitize=bounds" } */
  
  int
  foo (int n, int k)
--- 1,7 ----
  /* PR sanitizer/70875 */
  /* { dg-do run } */
! /* { dg-options "-fsanitize=bounds -fno-sanitize-recover=bounds" } */
! /* { dg-shouldfail "ubsan" } */
  
  int
  foo (int n, int k)
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/pr81162.c gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/pr81162.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/pr81162.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/pr81162.c	Tue Jul 25 19:42:36 2017
***************
*** 0 ****
--- 1,17 ----
+ /* PR tree-optimization/81162 */
+ /* { dg-do run } */
+ /* { dg-options "-fsanitize=undefined -O2" } */
+ 
+ short s;
+ int i1 = 1;
+ int i2 = 1;
+ unsigned char uc = 147;
+ 
+ int main() {
+   s = (-uc + 2147483647) << 0;
+   if (9031239389974324562ULL >= (-((i1 && i2) + uc) ^ -21096) ) {
+     return 0;
+   } else {
+     return -1;
+   }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/pr81505.c gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/pr81505.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/pr81505.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/pr81505.c	Mon Sep 18 11:07:50 2017
***************
*** 0 ****
--- 1,17 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3 -fsanitize=signed-integer-overflow" } */
+ 
+ int a, b, c, h;
+ 
+ int i[5][5];
+ 
+ void
+ fn1 ()
+ {
+   int l = 0;
+ 
+   for (a = 0; a <= 3; a++)
+     for (b = 1; b >= 0; b -= 1)
+       l |= i[0][b];
+   c = l;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/pr83014.c gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/pr83014.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/ubsan/pr83014.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/ubsan/pr83014.c	Mon Jun 25 16:54:49 2018
***************
*** 0 ****
--- 1,12 ----
+ /* PR sanitizer/83014 */
+ /* { dg-do compile } */
+ /* { dg-options "-fsanitize=undefined" } */
+ 
+ int
+ foo (void)
+ {
+   int data[5];
+   data[0] = 0;
+   data[5] = 0;
+   return data[0];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr79920.c gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr79920.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr79920.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr79920.c	Thu Jun 21 11:18:50 2018
***************
*** 0 ****
--- 1,44 ----
+ /* { dg-do run } */
+ /* { dg-additional-options "-O3" } */
+ 
+ #include "tree-vect.h"
+ 
+ double __attribute__((noinline,noclone))
+ compute_integral (double w_1[18])
+ {
+   double A = 0;
+   double t33[2][6] = {{0.0, 0.0, 0.0, 0.0, 0.0, 0.0},
+ 	{0.0, 0.0, 0.0, 0.0, 0.0, 0.0}};
+   double t43[2] = {0.0, 0.0};
+   double t31[2][2] = {{1.0, 1.0}, {1.0, 1.0}};
+   double t32[2][3] = {{0.0, 0.0, 1.0}, {0.0, 0.0, 1.0}};
+ 
+   for (int ip_1 = 0; ip_1 < 2; ++ip_1)
+     {
+       for (int i_0 = 0; i_0 < 6; ++i_0)
+ 	t33[ip_1][i_0] = ((w_1[i_0*3] * t32[ip_1][0])
+ 			  + (w_1[i_0*3+2] * t32[ip_1][2]));
+       t43[ip_1] = 2.0;
+     }
+   for (int i_0 = 0; i_0 < 6; ++i_0)
+     A += t43[1]*t33[1][i_0];
+   return A;
+ }
+ 
+ int main()
+ {
+   check_vect ();
+ 
+   double w_1[18] = {0., 1.0, 1.0,
+       0., 1.0, 1.0,
+       0., 1.0, 1.0,
+       0., 1.0, 1.0,
+       0., 1.0, 1.0,
+       0., 1.0, 1.0};
+   double A = compute_integral(w_1);
+   if (A != 12.0)
+     __builtin_abort ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_double && { vect_perm && vect_hw_misalign } } } } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr81410.c gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr81410.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr81410.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr81410.c	Thu Jun 21 11:18:50 2018
***************
*** 0 ****
--- 1,37 ----
+ /* { dg-do run } */
+ /* { dg-require-effective-target vect_long_long } */
+ 
+ #include "tree-vect.h"
+ 
+ long long x[24];
+ long long y[16];
+ long long z[8];
+ 
+ void __attribute__((noinline)) foo()
+ {
+   for (int i = 0; i < 8; ++i)
+     {
+       y[2*i] = x[3*i];
+       y[2*i + 1] = x[3*i + 1];
+       z[i] = 1;
+     }
+ }
+ 
+ int main()
+ {
+   check_vect ();
+ 
+   for (int i = 0; i < 24; ++i)
+     {
+       x[i] = i;
+       __asm__ volatile ("" : : : "memory");
+     }
+   foo ();
+   for (int i = 0; i < 8; ++i)
+     if (y[2*i] != 3*i || y[2*i+1] != 3*i + 1)
+       __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr82108.c gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr82108.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr82108.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr82108.c	Thu Jun 21 11:18:50 2018
***************
*** 0 ****
--- 1,47 ----
+ /* { dg-do run } */
+ /* { dg-require-effective-target vect_float } */
+ 
+ #include "tree-vect.h"
+ 
+ void __attribute__((noinline,noclone))
+ downscale_2 (const float* src, int src_n, float* dst)
+ {
+   int i;
+ 
+   for (i = 0; i < src_n; i += 2) {
+       const float* a = src;
+       const float* b = src + 4;
+ 
+       dst[0] = (a[0] + b[0]) / 2;
+       dst[1] = (a[1] + b[1]) / 2;
+       dst[2] = (a[2] + b[2]) / 2;
+       dst[3] = (a[3] + b[3]) / 2;
+ 
+       src += 2 * 4;
+       dst +=     4;
+   }
+ }
+ 
+ int main ()
+ {
+   const float in[4 * 4] = {
+       1, 2, 3, 4,
+       5, 6, 7, 8,
+ 
+       1, 2, 3, 4,
+       5, 6, 7, 8
+   };
+   float out[2 * 4];
+ 
+   check_vect ();
+ 
+   downscale_2 (in, 4, out);
+ 
+   if (out[0] != 3 || out[1] != 4 || out[2] != 5 || out[3] != 6
+       || out[4] != 3 || out[5] != 4 || out[6] != 5 || out[7] != 6)
+     __builtin_abort ();
+   
+   return 0;
+ }
+ 
+ /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr85597.c gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr85597.c
*** gcc-6.4.0/gcc/testsuite/gcc.dg/vect/pr85597.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.dg/vect/pr85597.c	Wed Jun 20 13:10:21 2018
***************
*** 0 ****
--- 1,26 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3" } */
+ /* { dg-additional-options "-mfma" { target { x86_64-*-* i?86-*-* } } } */
+ 
+ extern double fma (double, double, double);
+ 
+ static inline void
+ bar (int i, double *D, double *S)
+ {
+   while (i-- > 0)
+     {
+       D[0] = fma (1, S[0], D[0]);
+       D[1] = fma (1, S[1], D[1]);
+       D[2] = fma (1, S[2], D[2]);
+       D[3] = fma (1, S[3], D[3]);
+       D += 4;
+       S += 4;
+     }
+ }
+ 
+ void
+ foo (double *d, double *s)
+ {
+   bar (10, d, s);
+ }
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/aarch64/pr71112.c gcc-6.5.0/gcc/testsuite/gcc.target/aarch64/pr71112.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/aarch64/pr71112.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/aarch64/pr71112.c	Thu Jul  6 09:31:25 2017
***************
*** 0 ****
--- 1,10 ----
+ /* PR target/71112.  */
+ /* { dg-additional-options "-fpie" { target pie } } */
+ 
+ extern int dbs[100];
+ void f (int *);
+ int nscd_init (void)
+ {
+   f (dbs);
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/aarch64/pr81414.C gcc-6.5.0/gcc/testsuite/gcc.target/aarch64/pr81414.C
*** gcc-6.4.0/gcc/testsuite/gcc.target/aarch64/pr81414.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/aarch64/pr81414.C	Fri Jul 28 11:25:08 2017
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mcpu=cortex-a57" } */
+ 
+ typedef __Float32x2_t float32x2_t;
+ float32x2_t
+ foo1 (float32x2_t __a, float32x2_t __b, float32x2_t __c) {
+   return __b * __c + __a;
+ }
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/aarch64/pr83370.c gcc-6.5.0/gcc/testsuite/gcc.target/aarch64/pr83370.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/aarch64/pr83370.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/aarch64/pr83370.c	Thu Feb  1 21:33:05 2018
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-do run } */
+ /* { dg-options "-O2" } */
+ 
+ typedef void (*fun) (void);
+ 
+ void
+ f (fun x1)
+ {
+   register fun x2 asm ("x16");
+   int arr[5000];
+   int *volatile ptr = arr;
+   asm ("mov %0, %1" : "=r" (x2) : "r" (x1));
+   x2 ();
+ }
+ 
+ void g (void) {}
+ 
+ int
+ main (void)
+ {
+   f (g);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/fpscr.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/fpscr.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/fpscr.c	Fri Jun 23 16:13:02 2017
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/fpscr.c	Wed Apr 18 13:17:30 2018
***************
*** 6,16 ****
  /* { dg-add-options arm_fp } */
  
  void
! test_fpscr ()
  {
!   volatile unsigned int status = __builtin_arm_get_fpscr ();
    __builtin_arm_set_fpscr (status);
  }
  
  /* { dg-final { scan-assembler "mrc\tp10, 7, r\[0-9\]+, cr1, cr0, 0" } } */
! /* { dg-final { scan-assembler "mcr\tp10, 7, r\[0-9\]+, cr1, cr0, 0" } } */
--- 6,19 ----
  /* { dg-add-options arm_fp } */
  
  void
! test_fpscr (void)
  {
!   unsigned status;
! 
!   __builtin_arm_set_fpscr (0);
!   status = __builtin_arm_get_fpscr ();
    __builtin_arm_set_fpscr (status);
  }
  
  /* { dg-final { scan-assembler "mrc\tp10, 7, r\[0-9\]+, cr1, cr0, 0" } } */
! /* { dg-final { scan-assembler-times "mcr\tp10, 7, r\[0-9\]+, cr1, cr0, 0" 2 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c	Wed Jul 18 11:29:45 2012
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/neon-combine-sub-abs-into-vabd.c	Fri May 11 09:35:31 2018
*************** float32x2_t f_sub_abs_to_vabd_32(float32
*** 12,42 ****
    return res;
  }
  /* { dg-final { scan-assembler "vabd\.f32" } }*/
- 
- #include <arm_neon.h>
- int8x8_t sub_abs_to_vabd_8(int8x8_t val1, int8x8_t val2)
- {
-   int8x8_t sres = vsub_s8(val1, val2);
-   int8x8_t res = vabs_s8 (sres);
- 
-   return res;
- }
- /* { dg-final { scan-assembler "vabd\.s8" } }*/
- 
- int16x4_t sub_abs_to_vabd_16(int16x4_t val1, int16x4_t val2)
- {
-   int16x4_t sres = vsub_s16(val1, val2);
-   int16x4_t res = vabs_s16 (sres);
- 
-   return res;
- }
- /* { dg-final { scan-assembler "vabd\.s16" } }*/
- 
- int32x2_t sub_abs_to_vabd_32(int32x2_t val1, int32x2_t val2)
- {
-   int32x2_t sres = vsub_s32(val1, val2);
-   int32x2_t res = vabs_s32 (sres);
- 
-    return res;
- }
- /* { dg-final { scan-assembler "vabd\.s32" } }*/
--- 12,14 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-ldrd-1.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-ldrd-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-ldrd-1.c	Fri Apr  5 17:26:12 2013
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-ldrd-1.c	Thu Oct 19 13:16:42 2017
*************** int foo(int a, int b, int* p, int *q)
*** 8,11 ****
    *p = a;
    return a;
  }
! /* { dg-final { scan-assembler "ldrd" } } */
--- 8,11 ----
    *p = a;
    return a;
  }
! /* { dg-final { scan-assembler "ldrd\\t" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-ldrd-2.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-ldrd-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-ldrd-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-ldrd-2.c	Thu Oct 19 13:16:42 2017
***************
*** 0 ****
--- 1,11 ----
+ /* { dg-do compile } */
+ /* { dg-require-effective-target arm_prefer_ldrd_strd } */
+ /* { dg-options "-O2 -mno-unaligned-access" }  */
+ int foo(int a, int b, int* p, int *q)
+ {
+   a = p[2] + p[3];
+   *q = a;
+   *p = a;
+   return a;
+ }
+ /* { dg-final { scan-assembler-not "ldrd\\t" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-strd-1.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-strd-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-strd-1.c	Fri Apr  5 17:26:12 2013
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-strd-1.c	Thu Oct 19 13:16:42 2017
*************** void foo(int a, int b, int* p)
*** 6,9 ****
    p[2] = a;
    p[3] = b;
  }
! /* { dg-final { scan-assembler "strd" } } */
--- 6,9 ----
    p[2] = a;
    p[3] = b;
  }
! /* { dg-final { scan-assembler "strd\\t" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-strd-2.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-strd-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/peep-strd-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/peep-strd-2.c	Thu Oct 19 13:16:42 2017
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile } */
+ /* { dg-require-effective-target arm_prefer_ldrd_strd } */
+ /* { dg-options "-O2 -mno-unaligned-access" }  */
+ void foo(int a, int b, int* p)
+ {
+   p[2] = a;
+   p[3] = b;
+ }
+ /* { dg-final { scan-assembler-not "strd\\t" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr82518.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr82518.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr82518.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr82518.c	Tue Mar 27 13:07:22 2018
***************
*** 0 ****
--- 1,29 ----
+ /* { dg-do run } */
+ /* { dg-require-effective-target arm_neon_hw } */
+ /* { dg-additional-options "-O3 -fno-inline -std=gnu99" } */
+ /* { dg-add-options arm_neon } */
+ 
+ typedef struct { int x, y; } X;
+ 
+ void f4(X *p, int n)
+ {
+   for (int i = 0; i < n; i++)
+   { p[i].x = i;
+     p[i].y = i + 1;
+   }
+ }
+ 
+ __attribute ((aligned (16))) X arr[100];
+ 
+ int main(void)
+ {
+   volatile int fail = 0;
+   f4 (arr, 100);
+   for (int i = 0; i < 100; i++)
+     if (arr[i].y != i+1 || arr[i].x != i)
+       fail = 1;
+   if (fail)
+      __builtin_abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr82989.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr82989.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr82989.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr82989.c	Tue Mar 27 13:40:56 2018
***************
*** 0 ****
--- 1,33 ----
+ /* PR target/82989.  */
+ /* { dg-do compile } */
+ /* { dg-require-effective-target arm_neon_ok } */
+ /* { dg-skip-if "avoid conflicts with multilib options" { *-*-* } { "-mcpu=*" } { "-mcpu=cortex-a8" } } */
+ /* { dg-skip-if "avoid conflicts with multilib options" { *-*-* } { "-mfpu=*" } { "-mfpu=neon" } } */
+ /* { dg-skip-if "avoid conflicts with multilib options" { *-*-* } { "-mfloat-abi=*" } { "-mfloat-abi=hard" } } */
+ /* { dg-options "-O2 -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=hard" } */
+ /* { dg-add-options arm_neon } */
+ 
+ typedef unsigned long long uint64_t;
+ 
+ void f_shr_imm (uint64_t *a)
+ {
+   *a += *a >> 32;
+ }
+ 
+ void f_shr_reg (uint64_t *a, uint64_t b)
+ {
+   *a += *a >> b;
+ }
+ 
+ void f_shl_imm (uint64_t *a)
+ {
+   *a += *a << 32;
+ }
+ 
+ void f_shl_reg (uint64_t *a, uint64_t b)
+ {
+   *a += *a << b;
+ }
+ /* { dg-final { scan-assembler-not "vshl*" } } */
+ /* { dg-final { scan-assembler-not "vshr*" } } */
+ /* { dg-final { scan-assembler-not "vmov*" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr83687.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr83687.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr83687.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr83687.c	Fri May 11 09:35:31 2018
***************
*** 0 ****
--- 1,31 ----
+ /* { dg-do run } */
+ /* { dg-require-effective-target arm_neon_hw } */
+ /* { dg-options "-O2" } */
+ /* { dg-add-options arm_neon } */
+ 
+ #include <arm_neon.h>
+ 
+ __attribute__ ((noinline)) int8_t
+ testFunction1 (int8_t a, int8_t b)
+ {
+   volatile int8x16_t sub = vsubq_s8 (vdupq_n_s8 (a), vdupq_n_s8 (b));
+   int8x16_t abs = vabsq_s8 (sub);
+   return vgetq_lane_s8 (abs, 0);
+ }
+ 
+ __attribute__ ((noinline)) int8_t
+ testFunction2 (int8_t a, int8_t b)
+ {
+   int8x16_t sub = vsubq_s8 (vdupq_n_s8 (a), vdupq_n_s8 (b));
+   int8x16_t abs = vabsq_s8 (sub);
+   return vgetq_lane_s8 (abs, 0);
+ }
+ 
+ int
+ main (void)
+ {
+   if (testFunction1 (-100, 100) != testFunction2 (-100, 100))
+     __builtin_abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr84826.c gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr84826.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/arm/pr84826.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/arm/pr84826.c	Thu Mar 29 09:27:53 2018
***************
*** 0 ****
--- 1,16 ----
+ /* { dg-do compile } */
+ /* { dg-require-effective-target arm_thumb2_ok } */
+ /* { dg-options "-Ofast -fstack-check" } */
+ 
+ void d (void *);
+ 
+ void a ()
+ {
+   int b;
+   void bar (int c)
+   {
+     if (__builtin_expect (c, 0))
+       ++b;
+   }
+   d (bar);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/avr/isr-test.h gcc-6.5.0/gcc/testsuite/gcc.target/avr/isr-test.h
*** gcc-6.4.0/gcc/testsuite/gcc.target/avr/isr-test.h	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/avr/isr-test.h	Wed Jul 26 14:22:31 2017
***************
*** 0 ****
--- 1,282 ----
+ #ifndef ISR_TEST_H
+ #define ISR_TEST_H
+ 
+ #include <string.h>
+ 
+ #define ISR(N,...)                                                      \
+ __attribute__ ((used, externally_visible , ## __VA_ARGS__))             \
+     void __vector_##N (void);                                           \
+     void __vector_##N (void)
+ 
+ #define SFR(ADDR) (*(unsigned char volatile*) (__AVR_SFR_OFFSET__ + (ADDR)))
+ #define CORE_SFRS SFR (0x38)
+ #define SREG      SFR (0x3F)
+ #define SPL       SFR (0x3D)
+ #define EIND      SFR (0x3C)
+ #define RAMPZ     SFR (0x3B)
+ #define RAMPY     SFR (0x3A)
+ #define RAMPX     SFR (0x39)
+ #define RAMPD     SFR (0x38)
+ 
+ #ifdef __AVR_HAVE_JMP_CALL__
+ #define VEC_SIZE 4
+ #else
+ #define VEC_SIZE 2
+ #endif
+ 
+ #ifdef __AVR_TINY__
+ #define FIRST_REG 16
+ #else
+ #define FIRST_REG 0
+ #endif
+ 
+ #define CR "\n\t"
+ 
+ typedef struct
+ {
+   unsigned char sfrs[8];
+   unsigned char gprs[32 - FIRST_REG];
+ } regs_t;
+ 
+ regs_t reginfo1, reginfo2;
+ 
+ __attribute__((noinline))
+ static void clear_reginfo (void)
+ {
+   memset (reginfo1.sfrs, 0, sizeof (reginfo1.sfrs));
+   memset (reginfo2.sfrs, 0, sizeof (reginfo2.sfrs));
+ }
+ 
+ __attribute__((noinline))
+ static void compare_reginfo (unsigned long gpr_ignore)
+ {
+   signed char regno;
+   const unsigned char *preg1 = &reginfo1.gprs[0];
+   const unsigned char *preg2 = &reginfo2.gprs[0];
+ 
+   if (memcmp (&reginfo1, &reginfo2, 8))
+     __builtin_abort();
+ 
+   gpr_ignore >>= FIRST_REG;
+ 
+     for (regno = FIRST_REG; regno < 32;
+        regno++, preg1++, preg2++, gpr_ignore >>= 1)
+     {
+       if (gpr_ignore & 1)
+         continue;
+ 
+       if (*preg1 != *preg2)
+         {
+           static signed char volatile failed_regno;
+           failed_regno = regno;
+           __builtin_abort();
+         }
+     }
+ }
+ 
+ /* STore GPR */
+ #define ST(regno,M)                                     \
+   CR "sts %[" #M "]+8-%[first]+" #regno ", r" #regno
+ 
+ /* STore SFR */
+ #define ST_SFR(sfr, n_sfr, M)                   \
+   CR "in __tmp_reg__,%i[s_" #sfr "]"            \
+   CR "sts %[" #M "]+" #n_sfr ", __tmp_reg__"
+ 
+ /* Named asm OPerand for SFR */
+ #define OP_SFR(sfr)                             \
+   , [s_ ## sfr] "n" (&(sfr))
+ 
+ /* Write funny value to SFR */
+ #define XX_SFR(sfr)                             \
+   CR "dec r31 $ out %i[s_" #sfr "], r31"
+ 
+ /* Write 0 to SFR */
+ #define OO_SFR(sfr)                             \
+   CR "out %i[s_" #sfr "], __zero_reg__"
+ 
+ /* Macros for SREG */
+ #define ST_SREG(M) ST_SFR (SREG,0,M)
+ #define OP_SREG    OP_SFR (SREG)
+ #define XX_SREG    XX_SFR (SREG)
+ 
+ /* Macros for EIND */
+ #if defined __AVR_HAVE_EIJMP_EICALL__
+ #define ST_EIND(M) ST_SFR (EIND,1,M)
+ #define OP_EIND    OP_SFR (EIND)
+ #else
+ #define ST_EIND(M) /* empty */
+ #define OP_EIND    /* empty */
+ #endif
+ 
+ /* Macros for RAMPX */
+ #if defined (__AVR_HAVE_RAMPX__)
+ #define ST_RAMPX(M) ST_SFR (RAMPX,2,M)
+ #define OP_RAMPX    OP_SFR (RAMPX)
+ #define XX_RAMPX    XX_SFR (RAMPX)
+ #define OO_RAMPX    OO_SFR (RAMPX)
+ #else
+ #define ST_RAMPX(M) /* empty */
+ #define OP_RAMPX    /* empty */
+ #define XX_RAMPX    /* empty */
+ #define OO_RAMPX    /* empty */
+ #endif
+ 
+ /* Macros for RAMPY */
+ #if defined (__AVR_HAVE_RAMPY__)
+ #define ST_RAMPY(M) ST_SFR (RAMPY,3,M)
+ #define OP_RAMPY    OP_SFR (RAMPY)
+ #define XX_RAMPY    XX_SFR (RAMPY)
+ #define OO_RAMPY    OO_SFR (RAMPY)
+ #else
+ #define ST_RAMPY(M) /* empty */
+ #define OP_RAMPY    /* empty */
+ #define XX_RAMPY    /* empty */
+ #define OO_RAMPY    /* empty */
+ #endif
+ 
+ /* Macros for RAMPZ */
+ #if defined (__AVR_HAVE_RAMPZ__)
+ #define ST_RAMPZ(M) ST_SFR (RAMPZ,4,M)
+ #define OP_RAMPZ    OP_SFR (RAMPZ)
+ #define XX_RAMPZ    XX_SFR (RAMPZ)
+ #define OO_RAMPZ    OO_SFR (RAMPZ)
+ #else
+ #define ST_RAMPZ(M) /* empty */
+ #define OP_RAMPZ    /* empty */
+ #define XX_RAMPZ    /* empty */
+ #define OO_RAMPZ    /* empty */
+ #endif
+ 
+ /* Macros for RAMPD */
+ #if defined (__AVR_HAVE_RAMPD__)
+ #define ST_RAMPD(M) ST_SFR (RAMPD,5,M)
+ #define OP_RAMPD    OP_SFR (RAMPD)
+ #else
+ #define ST_RAMPD(M) /* empty */
+ #define OP_RAMPD    /* empty */
+ #endif
+ 
+ /* Macros for all GPRs */
+ #if defined __AVR_TINY__
+ #define ST_REGS_LO(M) /* empty */
+ #else
+ #define ST_REGS_LO(M)                           \
+   ST(0,M)   ST(1,M)   ST(2,M)   ST(3,M)         \
+   ST(4,M)   ST(5,M)   ST(6,M)   ST(7,M)         \
+   ST(8,M)   ST(9,M)   ST(10,M)  ST(11,M)        \
+   ST(12,M)  ST(13,M)  ST(14,M)  ST(15,M)
+ #endif /* AVR_TINY */
+ 
+ #define ST_REGS_HI(M)                           \
+   ST(16,M)    ST(17,M)    ST(18,M)    ST(19,M)  \
+   ST(20,M)    ST(21,M)    ST(22,M)    ST(23,M)  \
+   ST(24,M)    ST(25,M)    ST(26,M)    ST(27,M)  \
+   ST(28,M)    ST(29,M)    ST(30,M)    ST(31,M)
+ 
+ __attribute__((unused,naked,noinline,noclone))
+ static void host_store1 (void)
+ {
+   __asm __volatile__
+   ("nop"
+    CR ".global do_stores_before"
+    CR ".type   do_stores_before,@function"
+    CR "do_stores_before:"
+    /* Funny values to some SFRs */
+    CR "ldi r31, 1 + 'Z'"
+    XX_RAMPZ
+    XX_RAMPY
+    XX_RAMPX
+    CR "dec __zero_reg__"
+    CR "clr r31"
+    XX_SREG
+    /* Must set I-flag due to RETI of ISR */
+    CR "sei"
+    /* Store core regs before ISR */
+    ST_RAMPX (mem1)
+    ST_RAMPY (mem1)
+    ST_RAMPZ (mem1)
+    ST_RAMPD (mem1)
+    ST_EIND  (mem1)
+    ST_SREG  (mem1)
+    CR "ldi r31, 0xaa"
+    CR "mov __tmp_reg__, r31"
+    CR "ldi r31, 31"
+    ST_REGS_LO (mem1)
+    ST_REGS_HI (mem1)
+    CR "ret"
+    : /* No outputs */
+    : [mem1] "i" (&reginfo1), [first] "n" (FIRST_REG)
+    OP_RAMPX
+    OP_RAMPY
+    OP_RAMPZ
+    OP_RAMPD
+    OP_EIND
+    OP_SREG
+    : "memory", "r31");
+ }
+ 
+ __attribute__((unused,naked,noinline,noclone))
+ static void host_store2 (void)
+ {
+   __asm __volatile__
+   ("nop"
+    CR ".global do_stores_after"
+    CR ".type   do_stores_after,@function"
+    CR "do_stores_after:"
+    /* Store core regs after ISR */
+    ST_REGS_LO (mem2)
+    ST_REGS_HI (mem2)
+    ST_RAMPX (mem2)
+    ST_RAMPY (mem2)
+    ST_RAMPZ (mem2)
+    ST_RAMPD (mem2)
+    ST_EIND  (mem2)
+    ST_SREG  (mem2)
+    /* Undo funny values */
+    CR "clr __zero_reg__"
+    OO_RAMPX
+    OO_RAMPY
+    OO_RAMPZ
+    CR "ret"
+    : /* No outputs */
+    : [mem2] "i" (&reginfo2), [first] "n" (FIRST_REG)
+    OP_RAMPX
+    OP_RAMPY
+    OP_RAMPZ
+    OP_RAMPD
+    OP_EIND
+    OP_SREG
+    : "memory");
+ }
+ 
+ #define MK_CALL_ISR(vecno)                      \
+   __asm __volatile__                            \
+   (/* Funny values to some SFRs */              \
+    /* Must set I-flag due to RETI of ISR */     \
+    /* Store core regs before ISR */             \
+    CR "%~call do_stores_before"                 \
+    /* Execute ISR */                            \
+    CR "%~call __vectors + %[vect]"              \
+    /* Store core regs after ISR */              \
+    /* Undo funny values */                      \
+    CR "%~call do_stores_after"                  \
+    : /* No outputs */                           \
+    : [vect] "i" (VEC_SIZE * (vecno))            \
+    , "i" (host_store1)                          \
+    , "i" (host_store2)                          \
+    : "memory", "r31")
+ 
+ 
+ #define MK_RUN_ISR(N, IGMSK)                    \
+                                                 \
+ __attribute__((noinline,noclone))               \
+ void run_isr_ ## N (void)                       \
+ {                                               \
+   clear_reginfo();                              \
+   MK_CALL_ISR (N);                              \
+   compare_reginfo (IGMSK);                      \
+ }
+ 
+ #endif /* ISR_TEST_H */
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/avr/torture/isr-01-simple.c gcc-6.5.0/gcc/testsuite/gcc.target/avr/torture/isr-01-simple.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/avr/torture/isr-01-simple.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/avr/torture/isr-01-simple.c	Wed Jul 26 14:22:31 2017
***************
*** 0 ****
--- 1,98 ----
+ /* { dg-do run } */
+ /* { dg-options "-std=c99" } */
+ 
+ #include "../isr-test.h"
+ 
+ int volatile v;
+ 
+ /**********************************************************************/
+ 
+ ISR (1, signal)
+ {
+ }
+ 
+ MK_RUN_ISR (1, 0)
+ 
+ void test1 (void)
+ {
+   run_isr_1();
+ }
+ 
+ /**********************************************************************/
+ 
+ ISR (2, signal)
+ {
+   v++;
+ }
+ 
+ MK_RUN_ISR (2, 0)
+ 
+ void test2 (void)
+ {
+   v = 0;
+   run_isr_2();
+   if (v != 1)
+     __builtin_abort();
+ }
+ 
+ 
+ /**********************************************************************/
+ 
+ ISR (3, signal)
+ {
+   __asm __volatile__ ("$ lds  r27, v"
+                       "$ swap r27"
+                       "$ sts  v, r27"
+                       ::: "memory", "r27");
+ }
+ 
+ MK_RUN_ISR (3, 0)
+ 
+ void test3 (void)
+ {
+   run_isr_3();
+   if (v != 0x10)
+     __builtin_abort();
+ }
+ 
+ /**********************************************************************/
+ 
+ ISR (4, signal)
+ {
+   __asm __volatile__ ("sts v,__zero_reg__" ::: "memory");
+ }
+ 
+ MK_RUN_ISR (4, 0)
+ 
+ void test4 (void)
+ {
+   run_isr_4();
+   if (v != 0)
+     __builtin_abort();
+ }
+ 
+ /**********************************************************************/
+ 
+ ISR (5, signal)
+ {
+   __asm __volatile__ ("clt");
+ }
+ 
+ MK_RUN_ISR (5, 0)
+ 
+ void test5 (void)
+ {
+   run_isr_5();
+ }
+ 
+ /**********************************************************************/
+ 
+ int main (void)
+ {
+   test1();
+   test2();
+   test3();
+   test4();
+   test5();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/avr/torture/isr-02-call.c gcc-6.5.0/gcc/testsuite/gcc.target/avr/torture/isr-02-call.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/avr/torture/isr-02-call.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/avr/torture/isr-02-call.c	Wed Jul 26 14:22:31 2017
***************
*** 0 ****
--- 1,60 ----
+ /* { dg-do run } */
+ /* { dg-options "-std=c99" } */
+ 
+ #include "../isr-test.h"
+ 
+ int volatile v;
+ 
+ __attribute__((noinline,noclone))
+ void inc_v (void)
+ {
+   v++;
+ }
+ 
+ /**********************************************************************/
+ 
+ ISR (1, signal)
+ {
+   inc_v();
+ }
+ 
+ MK_RUN_ISR (1, 0)
+ 
+ void test1 (void)
+ {
+   run_isr_1();
+   if (v != 1)
+     __builtin_abort();
+ }
+ 
+ /**********************************************************************/
+ 
+ ISR (2, signal)
+ {
+   if (v == 1)
+     inc_v();
+   else
+     v += 2;
+ }
+ 
+ MK_RUN_ISR (2, 0)
+ 
+ void test2 (void)
+ {
+   run_isr_2();
+   if (v != 2)
+     __builtin_abort();
+   run_isr_2();
+   if (v != 4)
+     __builtin_abort();
+ }
+ 
+ 
+ /**********************************************************************/
+ 
+ int main (void)
+ {
+   test1();
+   test2();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/avr/torture/isr-03-fixed.c gcc-6.5.0/gcc/testsuite/gcc.target/avr/torture/isr-03-fixed.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/avr/torture/isr-03-fixed.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/avr/torture/isr-03-fixed.c	Wed Jul 26 14:22:31 2017
***************
*** 0 ****
--- 1,146 ----
+ /* { dg-do run } */
+ /* { dg-options "-std=gnu99 -fno-lto -fno-toplevel-reorder" } */
+ 
+ // No LTO for now due to PR lto/68384.
+ 
+ #ifdef __AVR_TINY__
+ unsigned char reg2;
+ #else
+ register unsigned char reg2 __asm("r2");
+ #endif
+ 
+ #include "../isr-test.h"
+ 
+ #define SET_REG(reg,val)                        \
+   do {                                          \
+     reg = (val);                                \
+     __asm __volatile__("" : "+r" (reg));        \
+   } while (0)                                   \
+ 
+ #define GET_REG(reg)                            \
+   ({                                            \
+     __asm __volatile__("" : "+r" (reg));        \
+     reg;                                        \
+   })
+ 
+ /**********************************************************************/
+ 
+ ISR (1, signal)
+ {
+   reg2++;
+ }
+ 
+ MK_RUN_ISR (1, 1ul << 2)
+ 
+ void test1 (void)
+ {
+   SET_REG (reg2, 0);
+   run_isr_1();
+   if (GET_REG (reg2) != 1)
+     __builtin_abort();
+ }
+ 
+ /**********************************************************************/
+ 
+ __attribute__((noinline,noclone))
+ void inc_r2 (void)
+ {
+   reg2++;
+ }
+ 
+ ISR (2, signal)
+ {
+   inc_r2 ();
+ }
+ 
+ MK_RUN_ISR (2, 1ul << 2)
+ 
+ void test2 (void)
+ {
+   run_isr_2();
+   if (GET_REG (reg2) != 2)
+     __builtin_abort();
+ }
+ 
+ 
+ /**********************************************************************/
+ 
+ ISR (3, signal)
+ {
+ #ifndef __AVR_TINY__
+   register char r4 __asm ("r4");
+   __asm __volatile ("inc %0" : "+r" (r4));
+   __asm __volatile ("inc r5" ::: "r5");
+ #endif
+ }
+ 
+ MK_RUN_ISR (3, 0)
+ 
+ void test3 (void)
+ {
+   run_isr_3();
+ }
+ 
+ 
+ /**********************************************************************/
+ 
+ #define CLOBB(reg)                                 \
+   do {                                             \
+     __asm __volatile__ ("inc " #reg ::: #reg);     \
+   } while (0)
+ 
+ ISR (4, signal)
+ {
+   char volatile v;
+   v = 1;
+ 
+ #ifndef __AVR_TINY__
+   CLOBB (r3);
+   CLOBB (r4);
+   CLOBB (r5);
+   CLOBB (r6);
+   CLOBB (r7);
+   CLOBB (r8);
+   CLOBB (r9);
+   CLOBB (r10);
+   CLOBB (r11);
+   CLOBB (r12);
+   CLOBB (r13);
+   CLOBB (r14);
+   CLOBB (r15);
+   CLOBB (r16);
+   CLOBB (r17);
+ #endif
+ 
+   CLOBB (r18);
+   CLOBB (r19);
+   CLOBB (r20);
+   CLOBB (r21);
+   CLOBB (r22);
+   CLOBB (r23);
+   CLOBB (r24);
+   CLOBB (r25);
+   CLOBB (r26);
+   CLOBB (r27);
+   CLOBB (r30);
+   CLOBB (r31);
+ }
+ 
+ MK_RUN_ISR (4, 0)
+ 
+ void test4 (void)
+ {
+   run_isr_4();
+ }
+ 
+ 
+ /**********************************************************************/
+ 
+ int main (void)
+ {
+   test1();
+   test2();
+   test3();
+   test4();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/avx512f-pr84786-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/avx512f-pr84786-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/avx512f-pr84786-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/avx512f-pr84786-3.c	Mon Jun 25 17:55:15 2018
***************
*** 0 ****
--- 1,50 ----
+ /* PR target/84786 */
+ /* { dg-do compile { target { ! ia32 } } } */
+ /* { dg-options "-mavx512f -mno-avx512vl -O2" } */
+ 
+ #include <x86intrin.h>
+ 
+ __m512i v;
+ __m128i w;
+ 
+ __m128i
+ foo (__m128i x, int y)
+ {
+   __m128i z;
+ #define A(n) register __m512i zmm##n __asm ("zmm" #n);
+ #define B A(1) A(2) A(3) A(4) A(5) A(6) A(7) \
+ 	  A(8) A(9) A(10) A(11) A(12) A(13) A(14)
+   B
+ #undef A
+ #define A(n) asm volatile ("" : "=v" (zmm##n) : "0" (v));
+   B
+   asm volatile ("" : "=x" (z) : "0" (w));
+   x = _mm_srli_epi16 (x, y);
+   asm volatile ("" : : "x" (z));
+ #undef A
+ #define A(n) asm volatile ("" : : "v" (zmm##n));
+   B
+   return x;
+ }
+ 
+ __m256i
+ bar (__m256i x, int y)
+ {
+   __m128i z;
+ #undef A
+ #define A(n) register __m512i zmm##n __asm ("zmm" #n);
+   B
+ #undef A
+ #define A(n) asm volatile ("" : "=v" (zmm##n) : "0" (v));
+   B
+   asm volatile ("" : "=x" (z) : "0" (w));
+   x = _mm256_slli_epi16 (x, y);
+   asm volatile ("" : : "x" (z));
+ #undef A
+ #define A(n) asm volatile ("" : : "v" (zmm##n));
+   B
+   return x;
+ }
+ 
+ /* { dg-final { scan-assembler-not "vpsrlw\[\^\n\r]*xmm(1\[6-9]|\[23]\[0-9])" } } */
+ /* { dg-final { scan-assembler-not "vpsllw\[\^\n\r]*xmm(1\[6-9]|\[23]\[0-9])" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2sd64-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2sd64-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2sd64-1.c	Tue Dec 29 10:32:21 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2sd64-1.c	Fri May 25 13:39:55 2018
***************
*** 1,7 ****
  /* { dg-do compile { target { ! ia32 } } } */
  /* { dg-options "-mavx512f -O2" } */
! /* { dg-final { scan-assembler-times "vcvtusi2sd\[ \\t\]+\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
! /* { dg-final { scan-assembler-times "vcvtusi2sd\[ \\t\]+\[^%\n\]*%r\[^\{\n\]*\{ru-sae\}\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
  
  #include <immintrin.h>
  
--- 1,7 ----
  /* { dg-do compile { target { ! ia32 } } } */
  /* { dg-options "-mavx512f -O2" } */
! /* { dg-final { scan-assembler-times "vcvtusi2sdq\[ \\t\]+\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
! /* { dg-final { scan-assembler-times "vcvtusi2sdq\[ \\t\]+\[^%\n\]*%r\[^\{\n\]*\{ru-sae\}\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
  
  #include <immintrin.h>
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2ss64-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2ss64-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2ss64-1.c	Tue Dec 29 10:32:21 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/avx512f-vcvtusi2ss64-1.c	Fri May 25 13:39:55 2018
***************
*** 1,7 ****
  /* { dg-do compile { target { ! ia32 } } } */
  /* { dg-options "-mavx512f -O2" } */
! /* { dg-final { scan-assembler-times "vcvtusi2ss\[ \\t\]+\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
! /* { dg-final { scan-assembler-times "vcvtusi2ss\[ \\t\]+\[^%\n\]*%r\[^\{\n\]*\{rz-sae\}\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
  
  #include <immintrin.h>
  
--- 1,7 ----
  /* { dg-do compile { target { ! ia32 } } } */
  /* { dg-options "-mavx512f -O2" } */
! /* { dg-final { scan-assembler-times "vcvtusi2ssq\[ \\t\]+\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
! /* { dg-final { scan-assembler-times "vcvtusi2ssq\[ \\t\]+\[^%\n\]*%r\[^\{\n\]*\{rz-sae\}\[^\{\n\]*%xmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */
  
  #include <immintrin.h>
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/i386.exp gcc-6.5.0/gcc/testsuite/gcc.target/i386/i386.exp
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/i386.exp	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/i386.exp	Thu Feb  1 08:09:03 2018
*************** proc check_effective_target_rtm { } {
*** 255,272 ****
      } "-mrtm" ]
  }
  
- # Return 1 if avx512f instructions can be compiled.
- proc check_effective_target_avx512f { } {
-     return [check_no_compiler_messages avx512f object {
- 	typedef long long __v8di __attribute__ ((__vector_size__ (64)));
- 	__v8di
- 	mm512_and_epi64  (__v8di __X, __v8di __Y)
- 	{
-             return __builtin_ia32_pandq512_mask (__X, __Y, __X, -1);
- 	}
-     } "-mavx512f" ]
- }
- 
  # Return 1 if avx512vl instructions can be compiled.
  proc check_effective_target_avx512vl { } {
      return [check_no_compiler_messages avx512vl object {
--- 255,260 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-10.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,7 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mindirect-branch=thunk-inline -mfunction-return=keep -mcmodel=large" } */
+ 
+ void
+ bar (void)
+ {
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile { target *-*-linux* } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+ 
+ extern void bar (void);
+ 
+ void
+ foo (void)
+ {
+   bar ();
+ }
+ 
+ /* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-do compile { target *-*-linux* } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */
+ 
+ extern void bar (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 { target x32 } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,43 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+ void func2 (void);
+ void func3 (void);
+ void func4 (void);
+ void func4 (void);
+ void func5 (void);
+ 
+ void
+ bar (int i)
+ {
+   switch (i)
+     {
+     default:
+       func0 ();
+       break;
+     case 1:
+       func1 ();
+       break;
+     case 2:
+       func2 ();
+       break;
+     case 3:
+       func3 ();
+       break;
+     case 4:
+       func4 ();
+       break;
+     case 5:
+       func5 ();
+       break;
+     }
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-8.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,7 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mindirect-branch=thunk -mfunction-return=keep -mcmodel=large" } */
+ 
+ void
+ bar (void)
+ { /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-9.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,7 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mindirect-branch=thunk-extern -mfunction-return=keep -mcmodel=large" } */
+ 
+ void
+ bar (void)
+ { /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ extern void male_indirect_jump (long)
+   __attribute__ ((indirect_branch("thunk")));
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-10.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
+ /* { dg-additional-options "-fPIC" { target fpic } } */
+ 
+ __attribute__ ((indirect_branch("thunk-extern")))
+ void
+ bar (void)
+ { /* { dg-error "'-mindirect-branch=thunk-extern' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-11.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
+ /* { dg-additional-options "-fPIC" { target fpic } } */
+ 
+ __attribute__ ((indirect_branch("thunk-inline")))
+ void
+ bar (void)
+ {
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ __attribute__ ((indirect_branch("thunk")))
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ extern int male_indirect_jump (long)
+   __attribute__ ((indirect_branch("thunk-inline")));
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ __attribute__ ((indirect_branch("thunk-inline")))
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ extern int male_indirect_jump (long)
+   __attribute__ ((indirect_branch("thunk-extern")));
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ __attribute__ ((indirect_branch("thunk-extern")))
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,43 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+ void func2 (void);
+ void func3 (void);
+ void func4 (void);
+ void func4 (void);
+ void func5 (void);
+ 
+ __attribute__ ((indirect_branch("thunk-extern")))
+ void
+ bar (int i)
+ {
+   switch (i)
+     {
+     default:
+       func0 ();
+       break;
+     case 1:
+       func1 ();
+       break;
+     case 2:
+       func2 ();
+       break;
+     case 3:
+       func3 ();
+       break;
+     case 4:
+       func4 ();
+       break;
+     case 5:
+       func5 ();
+       break;
+     }
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,42 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+ void func2 (void);
+ void func3 (void);
+ void func4 (void);
+ void func4 (void);
+ void func5 (void);
+ 
+ __attribute__ ((indirect_branch("keep")))
+ void
+ bar (int i)
+ {
+   switch (i)
+     {
+     default:
+       func0 ();
+       break;
+     case 1:
+       func1 ();
+       break;
+     case 2:
+       func2 ();
+       break;
+     case 3:
+       func3 ();
+       break;
+     case 4:
+       func4 ();
+       break;
+     case 5:
+       func5 ();
+       break;
+     }
+ }
+ 
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-9.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mindirect-branch=keep -mfunction-return=keep -mcmodel=large" } */
+ /* { dg-additional-options "-fPIC" { target fpic } } */
+ 
+ __attribute__ ((indirect_branch("thunk")))
+ void
+ bar (void)
+ { /* { dg-error "'-mindirect-branch=thunk' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile { target { ! x32 } } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ void (*dispatch) (char *);
+ char buf[10];
+ 
+ void
+ foo (void)
+ {
+   dispatch (buf);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile { target { ! x32 } } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ void (*dispatch) (char *);
+ char buf[10];
+ 
+ int
+ foo (void)
+ {
+   dispatch (buf);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+ 
+ void bar (char *);
+ char buf[10];
+ 
+ void
+ foo (void)
+ {
+   bar (buf);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */
+ /* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86_indirect_thunk_bnd_rax" { target lp64 } } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */
+ 
+ void bar (char *);
+ char buf[10];
+ 
+ int
+ foo (void)
+ {
+   bar (buf);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" } } */
+ /* { dg-final { scan-assembler "bnd call\[ \t\]*__x86_indirect_thunk_bnd_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 1 } } */
+ /* { dg-final { scan-assembler "bnd ret" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,18 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,18 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,18 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,18 ----
+ /* { dg-do compile { target *-*-linux* } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+ 
+ extern void bar (void);
+ 
+ void
+ foo (void)
+ {
+   bar ();
+ }
+ 
+ /* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,17 ----
+ /* { dg-do compile { target *-*-linux* } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */
+ 
+ extern void bar (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,42 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+ void func2 (void);
+ void func3 (void);
+ void func4 (void);
+ void func4 (void);
+ void func5 (void);
+ 
+ void
+ bar (int i)
+ {
+   switch (i)
+     {
+     default:
+       func0 ();
+       break;
+     case 1:
+       func1 ();
+       break;
+     case 2:
+       func2 ();
+       break;
+     case 3:
+       func3 ();
+       break;
+     case 4:
+       func4 ();
+       break;
+     case 5:
+       func5 ();
+       break;
+     }
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch[256];
+ 
+ int
+ male_indirect_jump (long offset)
+ {
+   dispatch[offset](offset);
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?dispatch" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,18 ----
+ /* { dg-do compile { target *-*-linux* } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+ 
+ extern void bar (void);
+ 
+ void
+ foo (void)
+ {
+   bar ();
+ }
+ 
+ /* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile { target *-*-linux* } } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */
+ 
+ extern void bar (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" { target x32 } } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*bar@GOT" { target { ! x32 } } } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,44 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ void func0 (void);
+ void func1 (void);
+ void func2 (void);
+ void func3 (void);
+ void func4 (void);
+ void func4 (void);
+ void func5 (void);
+ 
+ void
+ bar (int i)
+ {
+   switch (i)
+     {
+     default:
+       func0 ();
+       break;
+     case 1:
+       func1 ();
+       break;
+     case 2:
+       func2 ();
+       break;
+     case 3:
+       func3 ();
+       break;
+     case 4:
+       func4 ();
+       break;
+     case 5:
+       func5 ();
+       break;
+     }
+ }
+ 
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c	Mon Apr 16 18:59:22 2018
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-register -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk\n" } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk_bnd\n" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c	Mon Apr 16 18:59:22 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-register -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c	Mon Apr 16 18:59:22 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-register -fno-pic" } */
+ 
+ typedef void (*dispatch_t)(long offset);
+ 
+ dispatch_t dispatch;
+ 
+ void
+ male_indirect_jump (long offset)
+ {
+   dispatch(offset);
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch"  } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
+ /* { dg-final { scan-assembler-not {\t(pause|pause|nop)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/indirect-thunk-register-4.c	Mon Apr 16 19:00:53 2018
***************
*** 0 ****
--- 1,13 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mindirect-branch=keep -fno-pic" } */
+ 
+ extern void (*func_p) (void);
+ 
+ void
+ foo (void)
+ {
+   asm("call __x86_indirect_thunk_%V0" : : "a" (func_p));
+ }
+ 
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_eax" { target ia32 } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_rax" { target { ! ia32 } } } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/mpx-check.h gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/mpx-check.h
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/mpx-check.h	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/mpx-check.h	Mon Sep  4 18:48:36 2017
***************
*** 1,8 ****
  #include <stdio.h>
  #include <stdlib.h>
  #include <assert.h>
- 
  #include "cpuid.h"
  
  static int
  __attribute__ ((noinline))
--- 1,8 ----
  #include <stdio.h>
  #include <stdlib.h>
  #include <assert.h>
  #include "cpuid.h"
+ #include "mpx-os-support.h"
  
  static int
  __attribute__ ((noinline))
*************** mpx_test (int, const char **);
*** 16,33 ****
  
  #define DEBUG
  
  int
  main (int argc, const char **argv)
  {
    unsigned int eax, ebx, ecx, edx;
  
!   if (__get_cpuid_max (0, NULL) < 7)
!     return 0;
! 
!   __cpuid_count (7, 0, eax, ebx, ecx, edx);
  
    /* Run MPX test only if host has MPX support.  */
!   if (ebx & bit_MPX)
      mpx_test (argc, argv);
    else
      {
--- 16,40 ----
  
  #define DEBUG
  
+ static int
+ check_osxsave (void)
+ {
+   unsigned int eax, ebx, ecx, edx;
+ 
+   __cpuid (1, eax, ebx, ecx, edx);
+   return (ecx & bit_OSXSAVE) != 0;
+ }
+ 
  int
  main (int argc, const char **argv)
  {
    unsigned int eax, ebx, ecx, edx;
  
!   if (!__get_cpuid_count (7, 0, &eax, &ebx, &ecx, &edx))
!     return NORUNRES;
  
    /* Run MPX test only if host has MPX support.  */
!   if (check_osxsave () && (ebx & bit_MPX) && mpx_os_support ())
      mpx_test (argc, argv);
    else
      {
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/mpx-os-support.h gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/mpx-os-support.h
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/mpx-os-support.h	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/mpx-os-support.h	Mon Sep  4 18:48:36 2017
***************
*** 0 ****
--- 1,16 ----
+ /* Check if the OS supports executing MPX instructions.  */
+ 
+ #define XCR_XFEATURE_ENABLED_MASK	0x0
+ 
+ #define XSTATE_BNDREGS	0x8
+ 
+ static int
+ mpx_os_support (void)
+ {
+   unsigned int eax, edx;
+   unsigned int ecx = XCR_XFEATURE_ENABLED_MASK;
+ 
+   __asm__ ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (ecx));
+ 
+   return (eax & XSTATE_BNDREGS) != 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/pr79987.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/pr79987.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/pr79987.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/pr79987.c	Fri Sep 15 14:11:57 2017
***************
*** 0 ****
--- 1,5 ----
+ /* { dg-do compile } */
+ /* { dg-options "-fcheck-pointer-bounds -mmpx" } */
+ 
+ extern void foo;
+ void *bar = &foo; /* { dg-warning "taking address of expression of type .void." } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-lbv.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-lbv.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-lbv.c	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-lbv.c	Mon Sep  4 18:48:36 2017
*************** foo2 (int i1, int *p1, ...)
*** 28,34 ****
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __va_arg_pack ());
  }
  
  int prebuf[100];
--- 28,34 ----
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __builtin_va_arg_pack ());
  }
  
  int prebuf[100];
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-nov.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-nov.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-nov.c	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-nov.c	Mon Sep  4 18:48:36 2017
*************** foo2 (int i1, int *p1, ...)
*** 25,31 ****
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __va_arg_pack ());
  }
  
  int prebuf[100];
--- 25,31 ----
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __builtin_va_arg_pack ());
  }
  
  int prebuf[100];
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-ubv.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-ubv.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-ubv.c	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-1-ubv.c	Mon Sep  4 18:48:36 2017
*************** foo2 (int i1, int *p1, ...)
*** 28,34 ****
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __va_arg_pack ());
  }
  
  int prebuf[100];
--- 28,34 ----
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __builtin_va_arg_pack ());
  }
  
  int prebuf[100];
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-lbv.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-lbv.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-lbv.c	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-lbv.c	Mon Sep  4 18:48:36 2017
*************** foo2 (int i1, int *p1, ...)
*** 30,36 ****
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __va_arg_pack ());
  }
  
  int prebuf[100];
--- 30,36 ----
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __builtin_va_arg_pack ());
  }
  
  int prebuf[100];
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-nov.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-nov.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-nov.c	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-nov.c	Mon Sep  4 18:48:36 2017
*************** foo2 (int i1, int *p1, ...)
*** 27,33 ****
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __va_arg_pack ());
  }
  
  int prebuf[100];
--- 27,33 ----
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __builtin_va_arg_pack ());
  }
  
  int prebuf[100];
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-ubv.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-ubv.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-ubv.c	Tue Mar 10 09:39:59 2015
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/mpx/va-arg-pack-2-ubv.c	Mon Sep  4 18:48:36 2017
*************** foo2 (int i1, int *p1, ...)
*** 30,36 ****
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __va_arg_pack ());
  }
  
  int prebuf[100];
--- 30,36 ----
  static __attribute__((always_inline)) int
  foo1 (int *p1, ...)
  {
!   return foo2 (10, p1, __builtin_va_arg_pack ());
  }
  
  int prebuf[100];
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80569.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80569.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80569.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80569.c	Mon Jul 24 18:59:21 2017
***************
*** 0 ****
--- 1,9 ----
+ /* PR target/80569 */
+ /* { dg-do assemble } */
+ /* { dg-options "-O2 -m16 -march=haswell" } */
+ 
+ void load_kernel(void *setup_addr)
+ {
+     unsigned int seg = (unsigned int)setup_addr >> 4;
+     asm("movl %0, %%es" : : "r"(seg));
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80583.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80583.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80583.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80583.c	Mon Jun 25 16:57:13 2018
***************
*** 0 ****
--- 1,13 ----
+ /* PR target/80583 */
+ /* { dg-do compile } */
+ /* { dg-options "-O0 -mno-avx" } */
+ 
+ typedef int V __attribute__((__vector_size__(32)));
+ struct S { V a; };
+ 
+ V __attribute__((target ("avx")))
+ foo (struct S *b)
+ {
+   V x = b->a;
+   return x;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80819-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80819-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80819-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80819-1.c	Mon Jun 25 16:56:33 2018
***************
*** 0 ****
--- 1,13 ----
+ /* PR target/80819 */
+ /* { dg-do compile { target { ! ia32 } } } */
+ /* { dg-options "-O2 -msse4 -mno-avx -mtune=haswell -masm=att" } */
+ 
+ typedef unsigned long long V __attribute__((vector_size (16)));
+ 
+ V
+ foo (unsigned long long x, unsigned long long y)
+ {
+   return (V) { x, y };
+ }
+ 
+ /* { dg-final { scan-assembler-not "movq\[ \t]*%rsi, \[-0-9]*\\(" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80819-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80819-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr80819-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr80819-2.c	Mon Jun 25 16:56:33 2018
***************
*** 0 ****
--- 1,13 ----
+ /* PR target/80819 */
+ /* { dg-do compile { target { ! ia32 } } } */
+ /* { dg-options "-O2 -msse4 -mno-avx -mtune=generic -masm=att" } */
+ 
+ typedef unsigned long long V __attribute__((vector_size (16)));
+ 
+ V
+ foo (unsigned long long x, unsigned long long y)
+ {
+   return (V) { x, y };
+ }
+ 
+ /* { dg-final { scan-assembler-not "movq\[ \t]*%rsi, \[-0-9]*\\(" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81128.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81128.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81128.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81128.c	Fri Sep 15 09:13:29 2017
***************
*** 0 ****
--- 1,65 ----
+ /* PR ipa/81128 */
+ /* { dg-do run } */
+ /* { dg-options "-O3" } */
+ /* { dg-require-ifunc "" } */
+ 
+ 
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <time.h>
+ 
+ int resolver_fn = 0;
+ int resolved_fn = 0;
+ 
+ static inline void
+ do_it_right_at_runtime_A ()
+ {
+   resolved_fn++;
+ }
+ 
+ static inline void
+ do_it_right_at_runtime_B ()
+ {
+   resolved_fn++;
+ }
+ 
+ static inline void do_it_right_at_runtime (void);
+ 
+ void do_it_right_at_runtime (void)
+   __attribute__ ((ifunc ("resolve_do_it_right_at_runtime")));
+ 
+ static void (*resolve_do_it_right_at_runtime (void)) (void)
+ {
+   srand (time (NULL));
+   int r = rand ();
+   resolver_fn++;
+ 
+   /* Use intermediate variable to get a warning for non-matching
+    * prototype. */
+   typeof(do_it_right_at_runtime) *func;
+   if (r & 1)
+     func = do_it_right_at_runtime_A;
+   else
+     func = do_it_right_at_runtime_B;
+ 
+   return (void *) func;
+ }
+ 
+ int
+ main (void)
+ {
+   const unsigned int ITERS = 10;
+ 
+   for (int i = ITERS; i > 0; i--)
+     {
+       do_it_right_at_runtime ();
+     }
+ 
+   if (resolver_fn != 1)
+     __builtin_abort ();
+ 
+   if (resolved_fn != 10)
+     __builtin_abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81225.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81225.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81225.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81225.c	Fri Sep 15 21:30:04 2017
***************
*** 0 ****
--- 1,14 ----
+ /* PR target/81225 */
+ /* { dg-do compile } */
+ /* { dg-options "-mavx512ifma -O3 -ffloat-store" } */
+ 
+ long a[24];
+ float b[4], c[24];
+ int d;
+ 
+ void
+ foo ()
+ {
+   for (d = 0; d < 24; d++)
+     c[d] = (float) d ? : b[a[d]];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81300.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81300.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81300.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81300.c	Fri Jul 14 05:30:58 2017
***************
*** 0 ****
--- 1,30 ----
+ /* PR target/81300 */
+ /* { dg-do run { target { ! ia32 } } } */
+ /* { dg-options "-O2" } */
+ 
+ int
+ __attribute__((noinline, noclone))
+ foo (void)
+ {
+   unsigned long long _discard = 0, zero = 0, maxull = 0;
+   unsigned char zero1 = __builtin_ia32_addcarryx_u64 (0, 0, 0, &_discard);
+   unsigned char zero2 = __builtin_ia32_addcarryx_u64 (zero1, 0, 0, &zero);
+   __builtin_ia32_sbb_u64 (0x0, 2, -1, &_discard);
+   unsigned char one = __builtin_ia32_sbb_u64 (0, zero, 1, &maxull);
+   unsigned long long x = __builtin_ia32_sbb_u64 (one, zero2, 0, &_discard);
+ 
+   unsigned long long z1 = 0;
+   __asm__ ("mov{q}\t{%1, %0|%0, %1}" : "+r" (z1) : "r" (x));
+   unsigned long long z2 = 3;
+   __asm__ ("mov{q}\t{%1, %0|%0, %1}" : "+r" (z2) : "r" (x));
+ 
+   return 1 - (z1 | z2);
+ }
+ 
+ int main ()
+ {
+   if (foo ())
+     __builtin_abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81375.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81375.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81375.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81375.c	Fri Jul 14 05:30:58 2017
***************
*** 0 ****
--- 1,8 ----
+ /* PR target/81375 */
+ /* { dg-do compile { target ia32 } } */
+ /* { dg-options "-mno-80387 -mno-sse -mfpmath=sse" } */
+ 
+ float foo (float a, float b)
+ {
+   return a / b;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81471.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81471.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81471.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81471.c	Tue Jul 18 20:16:47 2017
***************
*** 0 ****
--- 1,13 ----
+ /* PR target/81471 */
+ /* { dg-do compile { target { ! ia32 } } } */
+ /* { dg-options "-O2 -mbmi2" } */
+ 
+ static inline unsigned int rotl (unsigned int x, int k)
+ {
+   return (x << k) | (x >> (32 - k));
+ }
+ 
+ unsigned long long test (unsigned int z)
+ {
+   return rotl (z, 55);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81641.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81641.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81641.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81641.c	Wed Aug  2 07:37:15 2017
***************
*** 0 ****
--- 1,11 ----
+ /* PR target/81641 */
+ /* { dg-do assemble } */
+ /* { dg-options "-O -masm=intel" } */
+ /* { dg-require-effective-target masm_intel } */
+ 
+ int test(void)
+ {
+   int __seg_fs *f = (int __seg_fs *)16;
+   int __seg_gs *g = (int __seg_gs *)16;
+   return *f + *g;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81766.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81766.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81766.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81766.c	Fri Sep 15 21:32:05 2017
***************
*** 0 ****
--- 1,5 ----
+ /* { dg-do compile } */
+ /* { dg-require-effective-target lp64 } */
+ /* { dg-options "-O2 -fPIE -mcmodel=large" } */
+ 
+ int main() { return 0; }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81906.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81906.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr81906.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr81906.c	Mon Jun 25 16:59:37 2018
***************
*** 0 ****
--- 1,37 ----
+ /* PR target/81906 */
+ /* { dg-do run { target *-*-linux* *-*-gnu* } }
+ /* { dg-options "-O2 -frounding-math" } */
+ 
+ #include <fenv.h>
+ 
+ int
+ main ()
+ {
+   #define N 12
+   double a[N] = { 2.0, 2.25, 2.5, 2.75, 3.5, -2.0, -2.25, -2.5, -2.75, -3.5, 0x2.0p53, -0x2.0p53 };
+   double b[N], c[N], d[N], e[N];
+   double be[N] = { 2.0, 2.0, 2.0, 3.0, 4.0, -2.0, -2.0, -2.0, -3.0, -4.0, 0x2.0p53, -0x2.0p53 };
+   double ce[N] = { 2.0, 2.0, 2.0, 2.0, 3.0, -2.0, -3.0, -3.0, -3.0, -4.0, 0x2.0p53, -0x2.0p53 };
+   double de[N] = { 2.0, 3.0, 3.0, 3.0, 4.0, -2.0, -2.0, -2.0, -2.0, -3.0, 0x2.0p53, -0x2.0p53 };
+   double ee[N] = { 2.0, 2.0, 2.0, 2.0, 3.0, -2.0, -2.0, -2.0, -2.0, -3.0, 0x2.0p53, -0x2.0p53 };
+   asm volatile ("" : : "g" (a), "g" (be), "g" (ce), "g" (de), "g" (ee) : "memory");
+ 
+   int i;
+   fesetround (FE_TONEAREST);
+   for (i = 0; i < N; ++i)
+     b[i] = __builtin_rint (a[i]);
+   fesetround (FE_DOWNWARD);
+   for (i = 0; i < N; ++i)
+     c[i] = __builtin_rint (a[i]);
+   fesetround (FE_UPWARD);
+   for (i = 0; i < N; ++i)
+     d[i] = __builtin_rint (a[i]);
+   fesetround (FE_TOWARDZERO);
+   for (i = 0; i < N; ++i)
+     e[i] = __builtin_rint (a[i]);
+   fesetround (FE_TONEAREST);
+   for (i = 0; i < N; ++i)
+     if (b[i] != be[i] || c[i] != ce[i] || d[i] != de[i] || e[i] != ee[i])
+       __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82941-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82941-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82941-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82941-1.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -march=skylake-avx512" } */
+ 
+ #include <immintrin.h>
+ 
+ extern __m512d y, z;
+ 
+ void
+ pr82941 ()
+ {
+   z = y;
+ }
+ 
+ /* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82941-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82941-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82941-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82941-2.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -march=knl" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-not "vzeroupper" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82942-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82942-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82942-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82942-1.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-mavx512f -mno-avx512er -O2" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82942-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82942-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82942-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82942-2.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-mavx512f -mavx512er -mtune=knl -O2" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-not "vzeroupper" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-1.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -march=knl -mvzeroupper" } */
+ 
+ #include <immintrin.h>
+ 
+ extern __m512d y, z;
+ 
+ void
+ pr82941 ()
+ {
+   z = y;
+ }
+ 
+ /* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-2.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -march=skylake-avx512 -mno-vzeroupper" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-not "vzeroupper" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-3.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-mavx512f -mavx512er -mvzeroupper -O2" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-4.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-mavx512f -mno-avx512er -mno-vzeroupper -O2" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-not "vzeroupper" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-5.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-5.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-5.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-5.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mavx512f -mtune=generic" } */
+ 
+ #include <immintrin.h>
+ 
+ extern __m512d y, z;
+ 
+ void
+ pr82941 ()
+ {
+   z = y;
+ }
+ 
+ /* { dg-final { scan-assembler-times "vzeroupper" 1 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-6.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-6.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -march=skylake-avx512 -mtune=knl" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-not "vzeroupper" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-7.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr82990-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr82990-7.c	Mon Dec  4 11:40:44 2017
***************
*** 0 ****
--- 1,6 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -march=skylake-avx512 -mtune=generic -mtune-ctrl=^emit_vzeroupper" } */
+ 
+ #include "pr82941-1.c"
+ 
+ /* { dg-final { scan-assembler-not "vzeroupper" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84310-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84310-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84310-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84310-2.c	Wed Mar  7 09:49:47 2018
***************
*** 0 ****
--- 1,10 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -malign-loops=16" } */
+ /* { dg-warning "is obsolete" "" { target *-*-* } 0 } */
+ 
+ void
+ c (void)
+ {
+   for (;;)
+     ;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84310.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84310.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84310.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84310.c	Wed Mar  7 09:49:47 2018
***************
*** 0 ****
--- 1,8 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -falign-functions=100000" } */
+ /* { dg-error "is not between 0 and 65536" "" { target *-*-* } 0 } */
+ 
+ void
+ test_func (void)
+ {
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84625.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84625.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84625.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84625.c	Mon Jun 25 17:25:41 2018
***************
*** 0 ****
--- 1,12 ----
+ /* PR inline-asm/84625 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -msse2" } */
+ 
+ typedef int V __attribute__((vector_size (16)));
+ 
+ void
+ foo (void)
+ {
+   asm volatile ("# %0" : : "X" ((V) { 1, 2, 3, 4 }));	// { dg-error "invalid vector immediate" }
+   asm volatile ("# %0" : : "" ((V) { 2, 3, 4, 5 }));	// { dg-error "invalid vector immediate" }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84829.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84829.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr84829.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr84829.c	Thu Jul 12 16:33:26 2018
***************
*** 0 ****
--- 1,7 ----
+ /* { dg-do link } */
+ /* { dg-options "-mieee-fp" } */
+ 
+ int main()
+ {
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr85034.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr85034.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr85034.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr85034.c	Mon Jun 25 17:38:29 2018
***************
*** 0 ****
--- 1,11 ----
+ /* PR inline-asm/85034 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+ 
+ void
+ foo (void)
+ {
+   volatile float a;
+   struct S { char a; } b = { 0 };
+   asm volatile ("" : "=r" (a) : "0ir" (b));
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr85193.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr85193.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr85193.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr85193.c	Thu Apr  5 20:32:18 2018
***************
*** 0 ****
--- 1,17 ----
+ /* { dg-do compile } */
+ /* { dg-options "-Wno-psabi -O2 -fno-tree-ccp -fno-tree-fre -mno-sse" } */
+ 
+ typedef unsigned char U __attribute__((vector_size(16)));
+ typedef unsigned int V __attribute__((vector_size(16)));
+ typedef unsigned long long W __attribute__((vector_size(16)));
+ 
+ extern void bar(U, U);
+ 
+ V v;
+ 
+ void
+ foo(U f)
+ {
+   f[0] = f[0] << (unsigned char)~v[0] | f[~((W)(U){0, 0, 0, 0, 0, 0, 0, 0, 5})[1] & 5] >> (-(unsigned char)~v[0] & 7);
+   bar(f, (U){});
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr86627.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr86627.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr86627.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr86627.c	Fri Oct 12 17:31:33 2018
***************
*** 0 ****
--- 1,28 ----
+ /* PR middle-end/86627 */
+ /* { dg-do compile { target int128 } } */
+ /* { dg-options "-O2" } */
+ /* { dg-final { scan-assembler-not "call\[^\n\r]*__divti3" } } */
+ 
+ __int128_t
+ f1 (__int128_t a)
+ {
+   return a / 2;
+ }
+ 
+ __int128_t
+ f2 (__int128_t a)
+ {
+   return a / -2;
+ }
+ 
+ __int128_t
+ f3 (__int128_t a)
+ {
+   return a / 0x4000000000000000LL;
+ }
+ 
+ __int128_t
+ f4 (__int128_t a)
+ {
+   return a / -0x4000000000000000LL;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr87065.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr87065.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr87065.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr87065.c	Fri Oct 12 17:32:38 2018
***************
*** 0 ****
--- 1,22 ----
+ /* PR rtl-optimization/87065 */
+ /* { dg-do compile } */
+ /* { dg-options "-O3 -mxop -mprefer-avx128" } */
+ 
+ int a, c, d, e;
+ short *b;
+ 
+ void
+ foo (void)
+ {
+   short *g = b;
+   int h = 1;
+   unsigned i;
+   for (; h <= 1; h++)
+     g = (short *) &c;
+   for (; c; c++)
+     {
+       for (; i <= 1; i++)
+ 	;
+       a ^= (a > 0 <= i) + ((e += d) == 0 ?: (*g = 8));
+     }
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr87550.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr87550.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/pr87550.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/pr87550.c	Fri Oct 12 17:34:07 2018
***************
*** 0 ****
--- 1,21 ----
+ /* PR target/87550 */
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+ 
+ #include <x86intrin.h>
+ 
+ int
+ foo (int x)
+ {
+   return __rdtsc () + __rdtsc ();
+ }
+ 
+ /* { dg-final { scan-assembler-times "\trdtsc\[\n\r]" 2 } } */
+ 
+ int
+ bar (int x)
+ {
+   return __rdpmc (0) + __rdpmc (0);
+ }
+ 
+ /* { dg-final { scan-assembler-times "\trdpmc\[\n\r]" 2 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-1.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-1.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,13 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=thunk" } */
+ 
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-10.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-10.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-11.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-11.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-11.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-12.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-12.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-12.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,20 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler "__x86_indirect_thunk_(r|e)ax:" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-13.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-13.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-13.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ extern int foo (void) __attribute__ ((function_return("thunk")));
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+ /* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */
+ /* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-14.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-14.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-14.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ __attribute__ ((function_return("thunk-inline")))
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-15.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-15.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-15.c	Mon Apr 16 19:08:14 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ __attribute__ ((function_return("thunk-extern"), indirect_branch("thunk")))
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-times {\tpause} 1 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-16.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-16.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-16.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-16.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,18 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk-extern -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ __attribute__ ((function_return("keep"), indirect_branch("keep")))
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler-not "__x86_indirect_thunk" } } */
+ /* { dg-final { scan-assembler-not "__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-17.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-17.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-17.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-17.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,7 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mfunction-return=thunk -mindirect-branch=keep -mcmodel=large" } */
+ 
+ void
+ bar (void)
+ { /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-18.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-18.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-18.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-18.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,8 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mfunction-return=thunk-extern -mindirect-branch=keep -mcmodel=large" } */
+ /* { dg-additional-options "-fPIC" { target fpic } } */
+ 
+ void
+ bar (void)
+ { /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-19.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-19.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-19.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-19.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,8 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
+ 
+ __attribute__ ((function_return("thunk")))
+ void
+ bar (void)
+ { /* { dg-error "'-mfunction-return=thunk' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-2.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-2.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,13 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=thunk-inline" } */
+ 
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-20.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-20.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-20.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-20.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
+ /* { dg-additional-options "-fPIC" { target fpic } } */
+ 
+ __attribute__ ((function_return("thunk-extern")))
+ void
+ bar (void)
+ { /* { dg-error "'-mfunction-return=thunk-extern' and '-mcmodel=large' are not compatible" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-21.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-21.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-21.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-21.c	Mon Apr 16 19:03:00 2018
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do compile { target { lp64 } } } */
+ /* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=keep -mcmodel=large" } */
+ /* { dg-additional-options "-fPIC" { target fpic } } */
+ 
+ __attribute__ ((function_return("thunk-inline")))
+ void
+ bar (void)
+ {
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-22.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-22.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-22.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-22.c	Mon Apr 16 19:06:32 2018
***************
*** 0 ****
--- 1,15 ----
+ /* PR target/r84530 */
+ /* { dg-do compile { target ia32 } } */
+ /* { dg-options "-O2 -mfunction-return=thunk" } */
+ 
+ struct s { _Complex unsigned short x; };
+ struct s gs = { 100 + 200i };
+ struct s __attribute__((noinline)) foo (void) { return gs; }
+ 
+ /* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
+ /* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-23.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-23.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-23.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-23.c	Mon Apr 16 19:06:32 2018
***************
*** 0 ****
--- 1,15 ----
+ /* PR target/r84530 */
+ /* { dg-do compile { target ia32 } } */
+ /* { dg-options "-O2 -mfunction-return=thunk-extern" } */
+ 
+ struct s { _Complex unsigned short x; };
+ struct s gs = { 100 + 200i };
+ struct s __attribute__((noinline)) foo (void) { return gs; }
+ 
+ /* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
+ /* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not {\tpause} } } */
+ /* { dg-final { scan-assembler-not {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-24.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-24.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-24.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-24.c	Mon Apr 16 19:06:32 2018
***************
*** 0 ****
--- 1,15 ----
+ /* PR target/r84530 */
+ /* { dg-do compile { target ia32 } } */
+ /* { dg-options "-O2 -mfunction-return=thunk-inline" } */
+ 
+ struct s { _Complex unsigned short x; };
+ struct s gs = { 100 + 200i };
+ struct s __attribute__((noinline)) foo (void) { return gs; }
+ 
+ /* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
+ /* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk_ecx" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-25.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-25.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-25.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-25.c	Mon Apr 16 19:06:32 2018
***************
*** 0 ****
--- 1,15 ----
+ /* PR target/r84530 */
+ /* { dg-do compile { target ia32 } } */
+ /* { dg-options "-O2 -mfunction-return=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */
+ 
+ struct s { _Complex unsigned short x; };
+ struct s gs = { 100 + 200i };
+ struct s __attribute__((noinline)) foo (void) { return gs; }
+ 
+ /* { dg-final { scan-assembler-times "popl\[\\t \]*%ecx" 1 } } */
+ /* { dg-final { scan-assembler "lea\[l\]?\[\\t \]*4\\(%esp\\), %esp" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk_bnd_ecx" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-26.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-26.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-26.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-26.c	Mon Apr 16 19:06:32 2018
***************
*** 0 ****
--- 1,40 ----
+ /* PR target/r84530 */
+ /* { dg-do run } */
+ /* { dg-options "-Os -mfunction-return=thunk" } */
+ 
+ struct S { int i; };
+ __attribute__((const, noinline, noclone))
+ struct S foo (int x)
+ {
+   struct S s;
+   s.i = x;
+   return s;
+ }
+ 
+ int a[2048], b[2048], c[2048], d[2048];
+ struct S e[2048];
+ 
+ __attribute__((noinline, noclone)) void
+ bar (void)
+ {
+   int i;
+   for (i = 0; i < 1024; i++)
+     {
+       e[i] = foo (i);
+       a[i+2] = a[i] + a[i+1];
+       b[10] = b[10] + i;
+       c[i] = c[2047 - i];
+       d[i] = d[i + 1];
+     }
+ }
+ 
+ int
+ main ()
+ {
+   int i;
+   bar ();
+   for (i = 0; i < 1024; i++)
+     if (e[i].i != i)
+       __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-3.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-3.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-3.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-3.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,12 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=thunk-extern" } */
+ 
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-4.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-4.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,12 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=keep" } */
+ 
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-5.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-5.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-5.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,15 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=keep" } */
+ 
+ extern void foo (void) __attribute__ ((function_return("thunk")));
+ 
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-6.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-6.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=keep" } */
+ 
+ __attribute__ ((function_return("thunk-inline")))
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler {\tpause} } } */
+ /* { dg-final { scan-assembler {\tlfence} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-7.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-7.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,13 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=keep" } */
+ 
+ __attribute__ ((function_return("thunk-extern")))
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-8.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-8.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-8.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-8.c	Mon Apr 16 18:55:04 2018
***************
*** 0 ****
--- 1,14 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mfunction-return=thunk-inline" } */
+ 
+ extern void foo (void) __attribute__ ((function_return("keep")));
+ 
+ void
+ foo (void)
+ {
+ }
+ 
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */
+ /* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-9.c gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/i386/ret-thunk-9.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/i386/ret-thunk-9.c	Mon Apr 16 19:11:13 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */
+ 
+ extern void (*bar) (void);
+ 
+ int
+ foo (void)
+ {
+   bar ();
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler "jmp\[ \t\]*__x86_return_thunk" } } */
+ /* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+ /* { dg-final { scan-assembler "__x86_return_thunk:" } } */
+ /* { dg-final { scan-assembler "mov(?:l|q)\[ \t\]*_?bar" { target *-*-linux* } } } */
+ /* { dg-final { scan-assembler-times {\tpause} 2 } } */
+ /* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+ /* { dg-final { scan-assembler "call\[ \t\]*__x86_indirect_thunk_(r|e)ax" } } */
+ /* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/nvptx/indirect_call.c gcc-6.5.0/gcc/testsuite/gcc.target/nvptx/indirect_call.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/nvptx/indirect_call.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/nvptx/indirect_call.c	Fri Mar  2 08:40:04 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-options "-O2" } */
+ /* { dg-do run } */
+ 
+ int
+ f1 (int a)
+ {
+   return a + 1;
+ }
+   
+ int (*f2)(int) = f1;
+ 
+ int
+ main ()
+ {
+   if (f2 (100) != 101)
+     __builtin_abort();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/nvptx/pr85056.c gcc-6.5.0/gcc/testsuite/gcc.target/nvptx/pr85056.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/nvptx/pr85056.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/nvptx/pr85056.c	Tue Apr 10 16:55:55 2018
***************
*** 0 ****
--- 1,21 ----
+ /* { dg-do run } */
+ /* { dg-additional-sources "pr85056a.c" } */
+ 
+ extern void abort ();
+ 
+ extern int a[];
+ 
+ int
+ main ()
+ {
+   int i, sum;
+ 
+   sum = 0;
+   for (i = 0; i < 10; i++)
+     sum += a[i];
+ 
+   if (sum != 55)
+     abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/nvptx/pr85056a.c gcc-6.5.0/gcc/testsuite/gcc.target/nvptx/pr85056a.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/nvptx/pr85056a.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/nvptx/pr85056a.c	Fri Mar 30 15:47:23 2018
***************
*** 0 ****
--- 1,3 ----
+ /* { dg-skip-if "" { *-*-* } } */
+ 
+ int a[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/builtins-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/builtins-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/builtins-1.c	Tue Nov  4 12:09:50 2014
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/builtins-1.c	Tue Jun 26 17:24:54 2018
*************** int main ()
*** 165,167 ****
--- 165,170 ----
  
    return 0;
  }
+ 
+ /* Translation of vec_packsu (unsigned long long, unsigned long long) */
+ /* { dg-final { scan-assembler-times {\mvpkudus\M} 1 } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c	Wed Jan 20 20:30:24 2016
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c	Fri Dec 15 03:44:16 2017
***************
*** 4,9 ****
--- 4,14 ----
  void
  use_cpu_is_builtins (unsigned int *p)
  {
+   /* If GCC was configured to use an old GLIBC (before 2.23), the
+      __builtin_cpu_is and __builtin_cpu_supports built-in functions return 0,
+      and the compiler issues a warning that you need a newer glibc to use them.
+      Use #ifdef to avoid the warning.  */
+ #ifdef __BUILTIN_CPU_SUPPORTS__
    p[0] = __builtin_cpu_is ("power9");
    p[1] = __builtin_cpu_is ("power8");
    p[2] = __builtin_cpu_is ("power7");
*************** use_cpu_is_builtins (unsigned int *p)
*** 19,29 ****
--- 24,38 ----
    p[12] = __builtin_cpu_is ("ppc440");
    p[13] = __builtin_cpu_is ("ppc405");
    p[14] = __builtin_cpu_is ("ppc-cell-be");
+ #else
+   p[0] = 0;
+ #endif
  }
  
  void
  use_cpu_supports_builtins (unsigned int *p)
  {
+ #ifdef __BUILTIN_CPU_SUPPORTS__
    p[0] = __builtin_cpu_supports ("4xxmac");
    p[1] = __builtin_cpu_supports ("altivec");
    p[2] = __builtin_cpu_supports ("arch_2_05");
*************** use_cpu_supports_builtins (unsigned int
*** 62,65 ****
--- 71,80 ----
    p[35] = __builtin_cpu_supports ("ucache");
    p[36] = __builtin_cpu_supports ("vcrypto");
    p[37] = __builtin_cpu_supports ("vsx");
+   p[38] = __builtin_cpu_supports ("darn");
+   p[39] = __builtin_cpu_supports ("scv");
+   p[40] = __builtin_cpu_supports ("htm-no-suspend");
+ #else
+   p[0] = 0;
+ #endif
  }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/crypto-builtin-1-runnable.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/crypto-builtin-1-runnable.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/crypto-builtin-1-runnable.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/crypto-builtin-1-runnable.c	Wed Mar 28 21:04:55 2018
***************
*** 0 ****
--- 1,109 ----
+ /* { dg-do run { target { powerpc*-*-* && p8vector_hw } } } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
+ /* { dg-options "-mcpu=power8 -O2 " } */
+ 
+ /* Make sure the test case compiled with -O2 generates the same expected
+    results.  The expected results were generated with -O0.  */
+ 
+ #include <altivec.h>
+ #define TRUE 1
+ #define FALSE 0
+ 
+ #define DEBUG 1
+ 
+ #ifdef DEBUG
+ #include <stdio.h>
+ #endif
+ 
+ void abort (void);
+ 
+ typedef vector unsigned long long	crypto_t;
+ typedef vector unsigned long long	v2di_t;
+ typedef vector unsigned int		v4si_t;
+ typedef vector unsigned short		v8hi_t;
+ typedef vector unsigned char		v16qi_t;
+ 
+ v16qi_t crypto6a (v16qi_t a, v16qi_t b, v16qi_t c)
+ {
+   return __builtin_crypto_vpermxor (a, b, c);
+ }
+ 
+ v8hi_t crypto6b (v8hi_t a, v8hi_t b, v8hi_t c)
+ {
+   return __builtin_crypto_vpermxor (a, b, c);
+ }
+ 
+ v4si_t crypto6c (v4si_t a, v4si_t b, v4si_t c)
+ {
+   return __builtin_crypto_vpermxor (a, b, c);
+ }
+ 
+ v2di_t crypto6d (v2di_t a, v2di_t b, v2di_t c)
+ {
+   return __builtin_crypto_vpermxor (a, b, c);
+ }
+ 
+ int main()
+ {
+   int i;
+   v16qi_t expected_v16qi, result_v16qi;
+   v8hi_t expected_v8hi, result_v8hi;
+   v4si_t expected_v4si, result_v4si;
+   v2di_t expected_v2di, result_v2di;
+   v16qi_t v16qi_arg_a, v16qi_arg_b, v16qi_arg_c;
+   v8hi_t v8hi_arg_a, v8hi_arg_b, v8hi_arg_c;
+   v4si_t v4si_arg_a, v4si_arg_b, v4si_arg_c;
+   v2di_t v2di_arg_a, v2di_arg_b, v2di_arg_c;
+ 
+   v16qi_arg_a = (vector unsigned char){ 7, 6, 5, 4, 3, 2, 1, 0,
+ 					1, 2, 3, 4, 5, 6, 7, 8 };
+   v16qi_arg_b = (vector unsigned char){ 1, 2, 3, 4, 5, 6, 7, 8,
+ 					7, 6, 5, 4, 3, 2, 1, 0 };
+   v16qi_arg_c = (vector unsigned char){ 7, 2, 5, 4, 3, 6, 1, 8,
+ 					1, 6, 3, 4, 5, 2, 7, 0 };
+   expected_v16qi = (vector unsigned char){ 15, 10, 13, 12, 11, 14, 9, 0,
+ 					   9, 14, 11, 12, 13, 10, 15, 8 };
+ 		
+   result_v16qi = crypto6a (v16qi_arg_a, v16qi_arg_b, v16qi_arg_c);
+ 				      
+   for (i = 0; i < 16; i++)
+     if (expected_v16qi[i] != result_v16qi[i])
+       printf("crypto6a: result_v16qi[%d] =  %d, expected = %d\n",
+ 	     i, result_v16qi[i], expected_v16qi[i]);
+ 
+   v8hi_arg_a = (vector unsigned short int){ 7, 6, 5, 4, 3, 2, 1, 0};
+   v8hi_arg_b = (vector unsigned short int){ 1, 2, 3, 4, 5, 6, 7, 8};
+   v8hi_arg_c = (vector unsigned short int){ 7, 2, 5, 4, 3, 6, 1, 8};
+   expected_v8hi = (vector unsigned short int){ 5, 0, 6, 0, 7, 0, 8};
+ 		
+   result_v8hi = crypto6b (v8hi_arg_a, v8hi_arg_b, v8hi_arg_c);
+ 				      
+   for (i = 0; i < 8; i++)
+     if (expected_v8hi[i] != result_v8hi[i])
+       printf("crypto6a: result_v8hi[%d] =  %d, expected = %d\n",
+ 	     i, result_v8hi[i], expected_v8hi[i]);
+ 
+   v4si_arg_a = (vector unsigned int){ 7, 6, 5, 4};
+   v4si_arg_b = (vector unsigned int){ 15, 6, 7, 8};
+   v4si_arg_c = (vector unsigned int){ 7, 14, 3, 6};
+   expected_v4si = (vector unsigned int){ 7, 0, 8, 0};
+ 		
+   result_v4si = crypto6c (v4si_arg_a, v4si_arg_b, v4si_arg_c);
+ 				      
+   for (i = 0; i < 4; i++)
+     if (expected_v4si[i] != result_v4si[i])
+       printf("crypto6a: result_v4si[%d] =  %d, expected = %d\n",
+ 	     i, result_v4si[i], expected_v4si[i]);
+ 
+   v2di_arg_a = (vector unsigned long long int){ 7, 6, };
+   v2di_arg_b = (vector unsigned long long int){ 15, 6, };
+   v2di_arg_c = (vector unsigned long long int){ 7, 14};
+   expected_v2di = (vector unsigned long long int){ 6, 0};
+ 		
+   result_v2di = crypto6d (v2di_arg_a, v2di_arg_b, v2di_arg_c);
+ 				      
+   for (i = 0; i < 2; i++)
+     if (expected_v2di[i] != result_v2di[i])
+       printf("crypto6a: result_v2di[%d] =  %d, expected = %d\n",
+ 	     i, result_v2di[i], expected_v2di[i]);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/extend-divide-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/extend-divide-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/extend-divide-1.c	Tue Nov  4 12:09:50 2014
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/extend-divide-1.c	Mon Apr  2 23:54:20 2018
***************
*** 5,13 ****
  /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
  /* { dg-options "-mcpu=power7 -O2" } */
  /* { dg-final { scan-assembler-times "divwe "   1 } } */
- /* { dg-final { scan-assembler-times "divweo "  1 } } */
  /* { dg-final { scan-assembler-times "divweu "  1 } } */
- /* { dg-final { scan-assembler-times "divweuo " 1 } } */
  /* { dg-final { scan-assembler-not    "bl __builtin" } } */
  
  int
--- 5,11 ----
*************** div_we (int a, int b)
*** 16,35 ****
    return __builtin_divwe (a, b);
  }
  
- int
- div_weo (int a, int b)
- {
-   return __builtin_divweo (a, b);
- }
- 
  unsigned int
  div_weu (unsigned int a, unsigned int b)
  {
    return __builtin_divweu (a, b);
  }
- 
- unsigned int
- div_weuo (unsigned int a, unsigned int b)
- {
-   return __builtin_divweuo (a, b);
- }
--- 14,21 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/extend-divide-2.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/extend-divide-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/extend-divide-2.c	Tue Nov  4 12:09:50 2014
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/extend-divide-2.c	Mon Apr  2 23:54:20 2018
***************
*** 5,13 ****
  /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
  /* { dg-options "-mcpu=power7 -O2" } */
  /* { dg-final { scan-assembler-times "divde "   1 } } */
- /* { dg-final { scan-assembler-times "divdeo "  1 } } */
  /* { dg-final { scan-assembler-times "divdeu "  1 } } */
- /* { dg-final { scan-assembler-times "divdeuo " 1 } } */
  /* { dg-final { scan-assembler-not    "bl __builtin" } } */
  
  long
--- 5,11 ----
*************** div_de (long a, long b)
*** 16,35 ****
    return __builtin_divde (a, b);
  }
  
- long
- div_deo (long a, long b)
- {
-   return __builtin_divdeo (a, b);
- }
- 
  unsigned long
  div_deu (unsigned long a, unsigned long b)
  {
    return __builtin_divdeu (a, b);
  }
- 
- unsigned long
- div_deuo (unsigned long a, unsigned long b)
- {
-   return __builtin_divdeuo (a, b);
- }
--- 14,21 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/p9-options-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/p9-options-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/p9-options-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/p9-options-1.c	Fri Jul 14 16:58:00 2017
***************
*** 0 ****
--- 1,28 ----
+ /* { dg-do compile { target { powerpc*-*-* } } } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+ /* { dg-require-effective-target powerpc_p9vector_ok } */
+ /* { dg-options "-mcpu=power9 -mno-power9-vector" } */
+ 
+ #include <altivec.h>
+ 
+ /* This program's "test for excess errors" demonstrates that combining
+    the target options -mcpu=power9 and -mno-power9-vector does not
+    result in an error.  A previous version of the compiler aborted
+    with the error message:
+ 
+       "power9-dform requires power9-vector."
+ 
+    when these two options were used in combination.
+ 
+    The newer version of the compiler, instead, automatically disables
+    power9-dform when the -mno-power9-vector command-line option is
+    specified.  */
+ int
+ test_any_equal (vector bool char *arg1_p, vector bool char *arg2_p)
+ {
+   vector bool char arg_1 = *arg1_p;
+   vector bool char arg_2 = *arg2_p;
+ 
+   return vec_any_eq (arg_1, arg_2);
+ }
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/ppc-sdata-2.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/ppc-sdata-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/ppc-sdata-2.c	Mon Feb 11 23:11:12 2013
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/ppc-sdata-2.c	Tue Mar 27 23:28:25 2018
***************
*** 5,10 ****
--- 5,11 ----
  /* { dg-final { scan-assembler-not "\\.section\[ \t\]\\.sdata2," } } */
  /* { dg-final { scan-assembler "sdat@sdarel\\(13\\)" } } */
  /* { dg-final { scan-assembler "sdat2@sdarel\\(13\\)" } } */
+ /* { dg-skip-if "" { *-*-* } { "-mno-readonly-in-sdata" } { "" } } */
  
  
  int sdat = 2;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80101-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80101-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80101-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80101-1.c	Fri Jul 14 16:58:00 2017
***************
*** 0 ****
--- 1,22 ----
+ /* { dg-do compile { target { powerpc*-*-* } } } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power6" } } */
+ /* { dg-require-effective-target dfp_hw } */
+ /* { dg-options "-mcpu=power6 -mno-sched-epilog -Ofast" } */
+ 
+ /* Prior to resolving PR 80101, this test case resulted in an internal
+    compiler error.  The role of this test program is to assure that
+    dejagnu's "test for excess errors" does not find any.  */
+ 
+ int b;
+ 
+ void e ();
+ 
+ int c ()
+ {
+   struct
+   {
+     int a[b];
+   } d;
+   if (d.a[0])
+     e ();
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80103-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80103-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80103-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80103-1.c	Fri Jul 14 16:58:00 2017
***************
*** 0 ****
--- 1,16 ----
+ /* { dg-do compile { target { powerpc*-*-* } } } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+ /* { dg-require-effective-target powerpc_p9vector_ok } */
+ /* { dg-options "-mpower9-dform-vector -mno-direct-move" } */
+ /* { dg-excess-errors "expect error due to conflicting target options" } */
+ /* Since the error message is not associated with a particular line
+    number, we cannot use the dg-error directive and cannot specify a
+    regexp to describe the expected error message.  The expected error
+    message is: "-mpower9-dform, -mpower9-dform-vector,
+                 -mpower9-dform-scalar require -mdirect-move" */
+ 
+ int a;
+ void b (__attribute__ ((__vector_size__ (16))) char c)
+ {
+   a = ((__attribute__ ((__vector_size__ (2 * sizeof (long)))) long) c)[0];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80210-2.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80210-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80210-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80210-2.c	Fri Dec 15 03:41:16 2017
***************
*** 0 ****
--- 1,11 ----
+ /* Test for ICE arising from GCC target pragma.  */
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+ 
+ #pragma GCC target "no-powerpc-gpopt"
+ double
+ foo (double a)
+ {
+   return __builtin_sqrt (a);
+ }
+ /* { dg-final { scan-assembler-not "fsqrt" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80210.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80210.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr80210.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr80210.c	Tue Aug 22 20:10:58 2017
***************
*** 0 ****
--- 1,10 ----
+ /* Test for ICE arising from GCC target pragma.  */
+ /* { dg-do compile } */
+ /* { dg-options "-O2" } */
+ 
+ double
+ foo (double a)
+ {
+   return __builtin_sqrt (a);
+ }
+ #pragma GCC target "no-powerpc-gpopt"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr81833-1.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr81833-1.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr81833-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr81833-1.c	Tue Sep 12 21:03:42 2017
***************
*** 0 ****
--- 1,59 ----
+ /* PR81833: This used to fail due to improper implementation of vec_msum.  */
+ /* Test case relies on -mcpu=power7 or later.  Currently we don't have
+    machinery to express that, so we have two separate tests for -mcpu=power7
+    and -mcpu=power8 to catch 32-bit BE on P7 and 64-bit BE/LE on P8.  */
+ 
+ /* { dg-do run } */
+ /* { dg-require-effective-target p8vector_hw } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
+ /* { dg-options "-mcpu=power8 -O2" } */
+ 
+ #include <altivec.h>
+ 
+ #define vec_u8  vector unsigned char
+ #define vec_s8  vector signed char
+ #define vec_u16 vector unsigned short
+ #define vec_s16 vector signed short
+ #define vec_u32 vector unsigned int
+ #define vec_s32 vector signed int
+ #define vec_f   vector float
+ 
+ #define LOAD_ZERO const vec_u8 zerov = vec_splat_u8 (0)
+ 
+ #define zero_u8v  (vec_u8)  zerov
+ #define zero_s8v  (vec_s8)  zerov
+ #define zero_u16v (vec_u16) zerov
+ #define zero_s16v (vec_s16) zerov
+ #define zero_u32v (vec_u32) zerov
+ #define zero_s32v (vec_s32) zerov
+ 
+ signed int __attribute__((noinline))
+ scalarproduct_int16_vsx (const signed short *v1, const signed short *v2,
+ 			 int order)
+ {
+   int i;
+   LOAD_ZERO;
+   register vec_s16 vec1;
+   register vec_s32 res = vec_splat_s32 (0), t;
+   signed int ires;
+ 
+   for (i = 0; i < order; i += 8) {
+     vec1 = vec_vsx_ld (0, v1);
+     t    = vec_msum (vec1, vec_vsx_ld (0, v2), zero_s32v);
+     res  = vec_sums (t, res);
+     v1  += 8;
+     v2  += 8;
+   }
+   res = vec_splat (res, 3);
+   vec_ste (res, 0, &ires);
+ 
+   return ires;
+ }
+ 
+ int main(void)
+ {
+   const signed short test_vec[] = { 1, 1, 1, 1, 1, 1, 1, 1 };
+   if (scalarproduct_int16_vsx (test_vec, test_vec, 8) != 8)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr81833-2.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr81833-2.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr81833-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr81833-2.c	Tue Sep 12 21:03:42 2017
***************
*** 0 ****
--- 1,59 ----
+ /* PR81833: This used to fail due to improper implementation of vec_msum.  */
+ /* Test case relies on -mcpu=power7 or later.  Currently we don't have
+    machinery to express that, so we have two separate tests for -mcpu=power7
+    and -mcpu=power8 to catch 32-bit BE on P7 and 64-bit BE/LE on P8.  */
+ 
+ /* { dg-do run } */
+ /* { dg-require-effective-target vsx_hw } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
+ /* { dg-options "-mcpu=power7 -O2" } */
+ 
+ #include <altivec.h>
+ 
+ #define vec_u8  vector unsigned char
+ #define vec_s8  vector signed char
+ #define vec_u16 vector unsigned short
+ #define vec_s16 vector signed short
+ #define vec_u32 vector unsigned int
+ #define vec_s32 vector signed int
+ #define vec_f   vector float
+ 
+ #define LOAD_ZERO const vec_u8 zerov = vec_splat_u8 (0)
+ 
+ #define zero_u8v  (vec_u8)  zerov
+ #define zero_s8v  (vec_s8)  zerov
+ #define zero_u16v (vec_u16) zerov
+ #define zero_s16v (vec_s16) zerov
+ #define zero_u32v (vec_u32) zerov
+ #define zero_s32v (vec_s32) zerov
+ 
+ signed int __attribute__((noinline))
+ scalarproduct_int16_vsx (const signed short *v1, const signed short *v2,
+ 			 int order)
+ {
+   int i;
+   LOAD_ZERO;
+   register vec_s16 vec1;
+   register vec_s32 res = vec_splat_s32 (0), t;
+   signed int ires;
+ 
+   for (i = 0; i < order; i += 8) {
+     vec1 = vec_vsx_ld (0, v1);
+     t    = vec_msum (vec1, vec_vsx_ld (0, v2), zero_s32v);
+     res  = vec_sums (t, res);
+     v1  += 8;
+     v2  += 8;
+   }
+   res = vec_splat (res, 3);
+   vec_ste (res, 0, &ires);
+ 
+   return ires;
+ }
+ 
+ int main(void)
+ {
+   const signed short test_vec[] = { 1, 1, 1, 1, 1, 1, 1, 1 };
+   if (scalarproduct_int16_vsx (test_vec, test_vec, 8) != 8)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr82112.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr82112.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr82112.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr82112.c	Fri Sep 15 21:41:29 2017
***************
*** 0 ****
--- 1,16 ----
+ /* PR target/82112 */
+ /* { dg-do compile } */
+ /* { dg-require-effective-target powerpc_altivec_ok } */
+ /* { dg-options "-maltivec -std=gnu90" } */
+ 
+ #include <altivec.h>
+ 
+ struct __attribute__((aligned (16))) S { unsigned char c[64]; } bar (void);
+ vector unsigned char v;
+ 
+ void
+ foo (void)
+ {
+   vec_ld (0, bar ().c);	/* { dg-error "invalid parameter combination for AltiVec intrinsic" } */
+   vec_st (v, 0, bar ().c);	/* { dg-error "invalid parameter combination for AltiVec intrinsic" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83399.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83399.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83399.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83399.c	Tue Jan 23 18:18:25 2018
***************
*** 0 ****
--- 1,15 ----
+ /* PR target/83399 */
+ /* { dg-do compile } */
+ /* { dg-require-effective-target powerpc_vsx_ok } */
+ /* { dg-options "-O1 -mabi=elfv2 -mlittle -mvsx" } */
+ 
+ typedef __attribute__((altivec(vector__))) int v4si_t;
+ int
+ foo (void)
+ {
+   v4si_t a, u, v, y;
+   u = __builtin_altivec_lvx (32, ((void *) &a) - 32);
+   v = __builtin_altivec_lvx (64, ((void *) &a) - 32);
+   y = u + v;
+   return y[0];
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83660.C gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83660.C
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83660.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83660.C	Tue Apr 24 00:14:21 2018
***************
*** 0 ****
--- 1,14 ----
+ /* PR target/83660 */
+ /* { dg-do compile } */
+ /* { dg-options "-mcpu=power7" } */
+ 
+ #include <altivec.h>
+ 
+ typedef __vector unsigned int  uvec32_t  __attribute__((__aligned__(16)));
+ 
+ unsigned get_word(uvec32_t v)
+ {
+     return ({const unsigned _B1 = 32;
+             vec_extract((uvec32_t)v, 2);});
+ }
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83677.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83677.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83677.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83677.c	Sun Jan 14 17:49:39 2018
***************
*** 0 ****
--- 1,166 ----
+ /* { dg-do run { target { powerpc*-*-* && { lp64 && p9vector_hw } } } } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
+ /* { dg-options "-mcpu=power9 -O2 " } */
+ 
+ /* PR83677: This test case used to fail due to mis-generation of the
+    xxpermr instruction.  It requires inlining to create enough register
+    pressure that we generate xxpermr rather than vpermr.  */
+ 
+ #include <altivec.h>
+ 
+ void v_expand_u8(vector unsigned char* a, vector unsigned short* b0, vector unsigned short* b1)
+ {
+   *b0 = (vector unsigned short)vec_mergeh(*a, vec_splats((unsigned char)0));
+   *b1 = (vector unsigned short)vec_mergel(*a, vec_splats((unsigned char)0));
+ }
+ 
+ void v_expand_u16(vector unsigned short* a, vector unsigned int* b0, vector unsigned int* b1)
+ {
+     *b0 = (vector unsigned int)vec_mergeh(*a, vec_splats((unsigned short)0));
+     *b1 = (vector unsigned int)vec_mergel(*a, vec_splats((unsigned short)0));
+ }
+ 
+ void v_load_deinterleave_u8(unsigned char *ptr, vector unsigned char* a, vector unsigned char* b, vector unsigned char* c)
+ {
+     vector unsigned char v1 = vec_xl( 0, ptr);
+     vector unsigned char v2 = vec_xl(16, ptr);
+     vector unsigned char v3 = vec_xl(32, ptr);
+ 
+     static const vector unsigned char a12_perm = {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 0, 0, 0, 0, 0};
+     static const vector unsigned char a123_perm = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 20, 23, 26, 29};
+     *a = vec_perm(vec_perm(v1, v2, a12_perm), v3, a123_perm);
+ 
+     static const vector unsigned char b12_perm = {1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, 0, 0, 0, 0, 0};
+     static const vector unsigned char b123_perm = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 18, 21, 24, 27, 30};
+     *b = vec_perm(vec_perm(v1, v2, b12_perm), v3, b123_perm);
+ 
+     static const vector unsigned char c12_perm = {2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 0, 0, 0, 0, 0, 0};
+     static const vector unsigned char c123_perm = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 16, 19, 22, 25, 28, 31};
+     *c = vec_perm(vec_perm(v1, v2, c12_perm), v3, c123_perm);
+ }
+ 
+ void v_load_deinterleave_f32(float *ptr, vector float* a, vector float* b, vector float* c)
+ {
+     vector float v1 = vec_xl( 0, ptr);
+     vector float v2 = vec_xl(16, ptr);
+     vector float v3 = vec_xl(32, ptr);
+ 
+     static const vector unsigned char flp = {0, 1, 2, 3, 12, 13, 14, 15, 16, 17, 18, 19, 28, 29, 30, 31};
+     *a = vec_perm(v1, vec_sld(v3, v2, 8), flp);
+ 
+     static const vector unsigned char flp2 = {28, 29, 30, 31, 0, 1, 2, 3, 12, 13, 14, 15, 16, 17, 18, 19};
+     *b = vec_perm(v2, vec_sld(v1, v3, 8), flp2);
+ 
+     *c = vec_perm(vec_sld(v2, v1, 8), v3, flp);
+ }
+ 
+ void v_store_interleave_f32(float *ptr, vector float a, vector float b, vector float c)
+ {
+     vector float hbc = vec_mergeh(b, c);
+ 
+     static const vector unsigned char ahbc = {0, 1, 2, 3, 16, 17, 18, 19, 20, 21, 22, 23, 4, 5, 6, 7};
+     vec_xst(vec_perm(a, hbc, ahbc),  0, ptr);
+ 
+     vector float lab = vec_mergel(a, b);
+     vec_xst(vec_sld(lab, hbc, 8), 16, ptr);
+ 
+     static const vector unsigned char clab = {8, 9, 10, 11, 24, 25, 26, 27, 28, 29, 30, 31, 12, 13, 14, 15};
+     vec_xst(vec_perm(c, lab, clab), 32, ptr);
+ }
+ 
+ vector float v_cvt_f32(vector unsigned int a)
+ {
+     return (vector float)vec_ctf(a, 0);
+ }
+ 
+ void acc_simd_(const unsigned char* src, float* dst, const unsigned char* mask, int len)
+ {
+     int x = 0;
+     const int cVectorWidth = 16;
+ 
+             for ( ; x <= len - cVectorWidth; x += cVectorWidth)
+             {
+                 vector unsigned char v_mask = vec_xl(0, mask + x);
+                 v_mask = (vector unsigned char)vec_cmpeq(vec_splats((unsigned char)0), v_mask);
+                 v_mask = (vector unsigned char)vec_nor(v_mask, v_mask);
+                 vector unsigned char v_src0, v_src1, v_src2;
+                 v_load_deinterleave_u8((unsigned char *)(src + (x * 3)), &v_src0, &v_src1, &v_src2);
+                 v_src0 = v_src0 & v_mask;
+                 v_src1 = v_src1 & v_mask;
+                 v_src2 = v_src2 & v_mask;
+ 
+                 /* expand 16 uchar to 4 vectors which contains 4 uint */
+                 vector unsigned short v_src00, v_src01, v_src10, v_src11, v_src20, v_src21;
+                 v_expand_u8(&v_src0, &v_src00, &v_src01);
+                 v_expand_u8(&v_src1, &v_src10, &v_src11);
+                 v_expand_u8(&v_src2, &v_src20, &v_src21);
+                 vector unsigned int v_src000, v_src001, v_src010, v_src011;
+                 vector unsigned int v_src100, v_src101, v_src110, v_src111;
+                 vector unsigned int v_src200, v_src201, v_src210, v_src211;
+                 v_expand_u16(&v_src00, &v_src000, &v_src001);
+                 v_expand_u16(&v_src01, &v_src010, &v_src011);
+                 v_expand_u16(&v_src10, &v_src100, &v_src101);
+                 v_expand_u16(&v_src11, &v_src110, &v_src111);
+                 v_expand_u16(&v_src20, &v_src200, &v_src201);
+                 v_expand_u16(&v_src21, &v_src210, &v_src211);
+ 
+                 vector float v_dst000, v_dst001, v_dst010, v_dst011;
+                 vector float v_dst100, v_dst101, v_dst110, v_dst111;
+                 vector float v_dst200, v_dst201, v_dst210, v_dst211;
+                 v_load_deinterleave_f32(dst + (x * 3),        &v_dst000, &v_dst100, &v_dst200);
+                 v_load_deinterleave_f32(dst + ((x + 4) * 3),  &v_dst001, &v_dst101, &v_dst201);
+                 v_load_deinterleave_f32(dst + ((x + 8) * 3),  &v_dst010, &v_dst110, &v_dst210);
+                 v_load_deinterleave_f32(dst + ((x + 12) * 3), &v_dst011, &v_dst111, &v_dst211);
+ 
+                 v_store_interleave_f32(dst + (x * 3),        vec_add(v_dst000, v_cvt_f32(v_src000)), vec_add(v_dst100, v_cvt_f32(v_src100)), vec_add(v_dst200, v_cvt_f32(v_src200)));
+                 v_store_interleave_f32(dst + ((x + 4) * 3),  vec_add(v_dst001, v_cvt_f32(v_src001)), vec_add(v_dst101, v_cvt_f32(v_src101)), vec_add(v_dst201, v_cvt_f32(v_src201)));
+                 v_store_interleave_f32(dst + ((x + 8) * 3),  vec_add(v_dst010, v_cvt_f32(v_src010)), vec_add(v_dst110, v_cvt_f32(v_src110)), vec_add(v_dst210, v_cvt_f32(v_src210)));
+                 v_store_interleave_f32(dst + ((x + 12) * 3), vec_add(v_dst011, v_cvt_f32(v_src011)), vec_add(v_dst111, v_cvt_f32(v_src111)), vec_add(v_dst211, v_cvt_f32(v_src211)));
+             }
+     return;
+ }
+ 
+ void acc_(const unsigned char* src, float* dst, const unsigned char* mask, int len)
+ {
+     int x = 0;
+     src += (x * 3);
+     dst += (x * 3);
+     for( ; x < len; x++, src += 3, dst += 3 )
+     {
+         if( mask[x] ) /* if mask, R/G/B dst[] += src[] */
+         {
+             for( int k = 0; k < 3; k++ )
+             {
+                 dst[k] += src[k];
+             }
+         }
+     }
+     return;
+ }
+ 
+ #define N 16
+ 
+ int main(int argc, char *argv[])
+ {
+     unsigned char __attribute__ ((aligned (16) )) mask[] = {0, 0, 0, 0,  0, 0, 0, 0,  0, 1, 0, 0,  1, 0, 0, 1};
+     unsigned char __attribute__ ((aligned (16) )) src[3*N];
+     float __attribute__ ((aligned (16) )) dst[3*N];
+     float __attribute__ ((aligned (16) )) exp[3*N];
+ 
+     int i;
+ 
+     /* initialize src and dst */
+     for (i=0; i<3*N; i++) src[i] = (unsigned char)(i*3);
+     for (i=0; i<3*N; i++) {dst[i] = i * 1.0f; exp[i] = dst[i];}
+ 
+     acc_(src, exp, mask, N);
+     acc_simd_(src, dst, mask, N);
+ 
+     for (i=0; i<N; i++)
+     {
+         if ((dst[3*i] != exp[3*i]) || (dst[3*i+1] != exp[3*i+1]) || (dst[3*i+2] != exp[3*i+2]))
+ 	  __builtin_abort ();
+     }
+ 
+     return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83862.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83862.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr83862.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr83862.c	Tue Jan 23 15:07:00 2018
***************
*** 0 ****
--- 1,34 ----
+ /* PR target/83862.c */
+ /* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+ /* { dg-require-effective-target ppc_float128_sw } */
+ /* { dg-require-effective-target powerpc_p9vector_ok } */
+ /* { dg-options "-mpower9-vector -O2 -mfloat128" } */
+ 
+ /* On little endian systems, optimizing signbit of IEEE 128-bit values from
+    memory could abort if the memory address was indexed (reg+reg).  The
+    optimization is only on 64-bit machines with direct move.
+ 
+    Compile with -g -O2 -mabi=ieeelongdouble -Wno-psabi.  */
+ 
+ #ifndef TYPE
+ #define TYPE __float128
+ #endif
+ 
+ int sbr (TYPE a) { return __builtin_signbit (a); }
+ int sbm (TYPE *a) { return __builtin_signbit (*a); }
+ int sbo (TYPE *a) { return __builtin_signbit (a[4]); }
+ int sbi (TYPE *a, unsigned long n) { return __builtin_signbit (a[n]); }
+ void sbs (int *p, TYPE a) { *p = __builtin_signbit (a); }
+ 
+ /* On big endian systems, this will generate 2 LDs and 1 LDX, while on
+    little endian systems, this will generate 3 LDs and an ADD.  */
+ 
+ /* { dg-final { scan-assembler-times {\mldx?\M}    3 } } */
+ /* { dg-final { scan-assembler-times {\mmfvsrd\M}  2 } } */
+ /* { dg-final { scan-assembler-times {\msrdi\M}    5 } } */
+ /* { dg-final { scan-assembler-not   {\mmfvsrld\M}   } } */
+ /* { dg-final { scan-assembler-not   {\mstxvx?\M}    } } */
+ /* { dg-final { scan-assembler-not   {\mstxvw4x\M}   } } */
+ /* { dg-final { scan-assembler-not   {\mstxvd2x\M}   } } */
+ /* { dg-final { scan-assembler-not   {\mstvx\M}      } } */
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr84700.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr84700.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/pr84700.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/pr84700.c	Mon Jun 25 17:27:47 2018
***************
*** 0 ****
--- 1,12 ----
+ /* PR target/84700 */
+ /* { dg-do compile } */
+ /* { dg-options "-O1 -misel" } */
+ 
+ long long int
+ foo (long long int x)
+ {
+   long long int a = x < 2;
+   int b = a >= 0;
+ 
+   return a + ((x == 0) ? a : b);
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/swaps-p8-46.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/swaps-p8-46.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/swaps-p8-46.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/swaps-p8-46.c	Mon Jan 29 04:31:18 2018
***************
*** 0 ****
--- 1,34 ----
+ /* { dg-do run { target { powerpc64le-*-* } } } */
+ /* { dg-require-effective-target powerpc_p8vector_ok } */
+ /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
+ /* { dg-options "-mcpu=power8 -O2 " } */
+ 
+ typedef __attribute__ ((__aligned__ (8))) unsigned long long __m64;
+ typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__));
+ 
+ /* PR84033.  Extracted from xmmintrin.h but with a pointer param to
+    allow swaps to happen when not inline.  */
+ int __attribute__ ((__noinline__))
+ _mm_movemask_ps (__m128 *__A)
+ {
+   __vector __m64 result;
+   static const __vector unsigned int perm_mask =
+     {
+       0x00204060, 0x80808080, 0x80808080, 0x80808080
+     };
+ 
+   result = (__vector __m64)
+     __builtin_vec_vbpermq ((__vector unsigned char) (*__A),
+ 			   (__vector unsigned char) perm_mask);
+   return result[1];
+ }
+ 
+ int
+ main (void)
+ {
+   union { unsigned int i[4]; __m128 m; } x
+     = { 0x80000000, 0x80000000, 0x7fffffff, 0x7fffffff };
+   if (_mm_movemask_ps (&x.m) != 3)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-double.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-double.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-double.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-double.c	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,12 ----
+ /* { dg-do run { target { powerpc*-*-linux* } } } */
+ /* { dg-require-effective-target vsx_hw } */
+ /* { dg-options "-O2 -mvsx" } */
+ 
+ /* Test various ways of creating vectors with 2 double words and accessing the
+    elements.  This test uses the double datatype.
+ 
+    This test explicitly tests -maltivec=be to make sure things are correct.  */
+ 
+ #define DO_DOUBLE
+ 
+ #include "vec-setup.h"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-long.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-long.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-long.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-be-long.c	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,11 ----
+ /* { dg-do run { target { powerpc64le*-*-linux* } } } */
+ /* { dg-require-effective-target vsx_hw } */
+ /* { dg-options "-O2 -mvsx -maltivec=be" } */
+ 
+ /* Test various ways of creating vectors with 2 double words and accessing the
+    elements.  This test uses the long (on 64-bit systems) or long long datatype
+    (on 32-bit systems).
+ 
+    This test explicitly tests -maltivec=be to make sure things are correct.  */
+ 
+ #include "vec-setup.h"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-double.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-double.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-double.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-double.c	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,11 ----
+ /* { dg-do run { target { powerpc*-*-linux* } } } */
+ /* { dg-require-effective-target vsx_hw } */
+ /* { dg-options "-O2 -mvsx" } */
+ 
+ /* Test various ways of creating vectors with 2 double words and accessing the
+    elements.  This test uses the double datatype and the default endian
+    order.  */
+ 
+ #define DO_DOUBLE
+ 
+ #include "vec-setup.h"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-long.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-long.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup-long.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup-long.c	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,9 ----
+ /* { dg-do run { target { powerpc*-*-linux* } } } */
+ /* { dg-require-effective-target vsx_hw } */
+ /* { dg-options "-O2 -mvsx" } */
+ 
+ /* Test various ways of creating vectors with 2 double words and accessing the
+    elements.  This test uses the long (on 64-bit systems) or long long datatype
+    (on 32-bit systems).  The default endian order is used.  */
+ 
+ #include "vec-setup.h"
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup.h gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup.h
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vec-setup.h	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vec-setup.h	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,366 ----
+ #include <altivec.h>
+ 
+ /* Test various ways of creating vectors with 2 double words and accessing the
+    elements.  This include files supports:
+ 
+ 	 testing double
+ 	 testing long on 64-bit systems
+ 	 testing long long on 32-bit systems.
+ 
+    The endian support is:
+ 
+ 	big endian
+ 	little endian with little endian element ordering
+ 	little endian with big endian element ordering.  */
+ 
+ #ifdef DEBUG
+ #include <stdio.h>
+ #define DEBUG0(STR)		fputs (STR, stdout)
+ #define DEBUG2(STR,A,B)		printf (STR, A, B)
+ 
+ static int errors = 0;
+ 
+ #else
+ #include <stdlib.h>
+ #define DEBUG0(STR)
+ #define DEBUG2(STR,A,B)
+ #endif
+ 
+ #if defined(DO_DOUBLE)
+ #define TYPE	double
+ #define STYPE	"double"
+ #define ZERO	0.0
+ #define ONE	1.0
+ #define TWO	2.0
+ #define THREE	3.0
+ #define FOUR	4.0
+ #define FIVE	5.0
+ #define SIX	6.0
+ #define FMT	"g"
+ 
+ #elif defined(_ARCH_PPC64)
+ #define TYPE	long
+ #define STYPE	"long"
+ #define ZERO	0L
+ #define ONE	1L
+ #define TWO	2L
+ #define THREE	3L
+ #define FOUR	4L
+ #define FIVE	5L
+ #define SIX	6L
+ #define FMT	"ld"
+ 
+ #else
+ #define TYPE	long long
+ #define STYPE	"long long"
+ #define ZERO	0LL
+ #define ONE	1LL
+ #define TWO	2LL
+ #define THREE	3LL
+ #define FOUR	4LL
+ #define FIVE	5LL
+ #define SIX	6LL
+ #define FMT	"lld"
+ #endif
+ 
+ /* Macros to order the left/right values correctly.  Note, -maltivec=be does
+    not change the order for static initializations, so we have to handle it
+    specially.  */
+ 
+ #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ #define INIT_ORDER(A, B)	(TYPE) A, (TYPE) B
+ #define ELEMENT_ORDER(A, B)	(TYPE) A, (TYPE) B
+ #define ENDIAN			"-mbig"
+ 
+ #elif __VEC_ELEMENT_REG_ORDER__ == __ORDER_BIG_ENDIAN__
+ #define NO_ARRAY
+ #define INIT_ORDER(A, B)	(TYPE) B, (TYPE) A
+ #define ELEMENT_ORDER(A, B)	(TYPE) A, (TYPE) B
+ #define ENDIAN			"-mlittle -maltivec=be"
+ 
+ #else
+ #define INIT_ORDER(A, B)	(TYPE) B, (TYPE) A
+ #define ELEMENT_ORDER(A, B)	(TYPE) B, (TYPE) A
+ #define ENDIAN			"-mlittle"
+ #endif
+ 
+ static volatile TYPE		five	= FIVE;
+ static volatile TYPE		six	= SIX;
+ static volatile vector TYPE	s_v12 = { ONE,   TWO };
+ static volatile vector TYPE	g_v34 = { THREE, FOUR };
+ 
+ 
+ __attribute__((__noinline__))
+ static void
+ vector_check (vector TYPE v, TYPE expect_hi, TYPE expect_lo)
+ {
+   TYPE actual_hi, actual_lo;
+ #ifdef DEBUG
+   const char *pass_fail;
+ #endif
+ 
+   __asm__ ("xxlor %x0,%x1,%x1"		: "=&wa" (actual_hi) : "wa" (v));
+   __asm__ ("xxpermdi %x0,%x1,%x1,3"	: "=&wa" (actual_lo) : "wa" (v));
+ 
+ #ifdef DEBUG
+   if ((actual_hi == expect_hi) && (actual_lo == expect_lo))
+     pass_fail = ", pass";
+   else
+     {
+       pass_fail = ", fail";
+       errors++;
+     }
+ 
+   printf ("Expected %" FMT ", %" FMT ", got %" FMT ", %" FMT "%s\n",
+ 	  expect_hi, expect_lo,
+ 	  actual_hi, actual_lo,
+ 	  pass_fail);
+ #else
+   if ((actual_hi != expect_hi) || (actual_lo != expect_lo))
+     abort ();
+ #endif
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ combine (TYPE op0, TYPE op1)
+ {
+   return (vector TYPE) { op0, op1 };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ combine_insert (TYPE op0, TYPE op1)
+ {
+   vector TYPE ret = (vector TYPE) { ZERO, ZERO };
+   ret = vec_insert (op0, ret, 0);
+   ret = vec_insert (op1, ret, 1);
+   return ret;
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract_00 (vector TYPE a, vector TYPE b)
+ {
+   return (vector TYPE) { vec_extract (a, 0), vec_extract (b, 0) };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract_01 (vector TYPE a, vector TYPE b)
+ {
+   return (vector TYPE) { vec_extract (a, 0), vec_extract (b, 1) };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract_10 (vector TYPE a, vector TYPE b)
+ {
+   return (vector TYPE) { vec_extract (a, 1), vec_extract (b, 0) };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract_11 (vector TYPE a, vector TYPE b)
+ {
+   return (vector TYPE) { vec_extract (a, 1), vec_extract (b, 1) };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract2_0s (vector TYPE a, TYPE b)
+ {
+   return (vector TYPE) { vec_extract (a, 0), b };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract2_1s (vector TYPE a, TYPE b)
+ {
+   return (vector TYPE) { vec_extract (a, 1), b };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract2_s0 (TYPE a, vector TYPE b)
+ {
+   return (vector TYPE) { a, vec_extract (b, 0) };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract2_s1 (TYPE a, vector TYPE b)
+ {
+   return (vector TYPE) { a, vec_extract (b, 1) };
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ concat_extract_nn (vector TYPE a, vector TYPE b, size_t i, size_t j)
+ {
+   return (vector TYPE) { vec_extract (a, i), vec_extract (b, j) };
+ }
+ 
+ #ifndef NO_ARRAY
+ __attribute__((__noinline__))
+ static vector TYPE
+ array_0 (vector TYPE v, TYPE a)
+ {
+   v[0] = a;
+   return v;
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ array_1 (vector TYPE v, TYPE a)
+ {
+   v[1] = a;
+   return v;
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ array_01 (vector TYPE v, TYPE a, TYPE b)
+ {
+   v[0] = a;
+   v[1] = b;
+   return v;
+ }
+ 
+ __attribute__((__noinline__))
+ static vector TYPE
+ array_01b (TYPE a, TYPE b)
+ {
+   vector TYPE v = (vector TYPE) { 0, 0 };
+   v[0] = a;
+   v[1] = b;
+   return v;
+ }
+ #endif
+ 
+ int
+ main (void)
+ {
+   vector TYPE a = (vector TYPE) { ONE,   TWO  };
+   vector TYPE b = (vector TYPE) { THREE, FOUR };
+   size_t i, j;
+ 
+ #ifndef NO_ARRAY
+   vector TYPE z = (vector TYPE) { ZERO,  ZERO };
+ #endif
+ 
+   DEBUG2 ("Endian: %s, type: %s\n", ENDIAN, STYPE);
+   DEBUG0 ("\nStatic/global initialization\n");
+   vector_check (s_v12, INIT_ORDER (1, 2));
+   vector_check (g_v34, INIT_ORDER (3, 4));
+ 
+   DEBUG0 ("\nVector via constant runtime intiialization\n");
+   vector_check (a, INIT_ORDER (1, 2));
+   vector_check (b, INIT_ORDER (3, 4));
+ 
+   DEBUG0 ("\nCombine scalars using vector initialization\n");
+   vector_check (combine (1, 2), INIT_ORDER (1, 2));
+   vector_check (combine (3, 4), INIT_ORDER (3, 4));
+ 
+   DEBUG0 ("\nSetup with vec_insert\n");
+   a = combine_insert (1, 2);
+   b = combine_insert (3, 4);
+   vector_check (a, ELEMENT_ORDER (1, 2));
+   vector_check (b, ELEMENT_ORDER (3, 4));
+ 
+ #ifndef NO_ARRAY
+   DEBUG0 ("\nTesting array syntax\n");
+   vector_check (array_0   (a, FIVE),      ELEMENT_ORDER (5, 2));
+   vector_check (array_1   (b, SIX),       ELEMENT_ORDER (3, 6));
+   vector_check (array_01  (z, FIVE, SIX), ELEMENT_ORDER (5, 6));
+   vector_check (array_01b (FIVE, SIX),    ELEMENT_ORDER (5, 6));
+ 
+   vector_check (array_0   (a, five),      ELEMENT_ORDER (5, 2));
+   vector_check (array_1   (b, six),       ELEMENT_ORDER (3, 6));
+   vector_check (array_01  (z, five, six), ELEMENT_ORDER (5, 6));
+   vector_check (array_01b (five, six),    ELEMENT_ORDER (5, 6));
+ #else
+   DEBUG0 ("\nSkipping array syntax on -maltivec=be\n");
+ #endif
+ 
+   DEBUG0 ("\nTesting concat and extract\n");
+   vector_check (concat_extract_00 (a, b), INIT_ORDER (1, 3));
+   vector_check (concat_extract_01 (a, b), INIT_ORDER (1, 4));
+   vector_check (concat_extract_10 (a, b), INIT_ORDER (2, 3));
+   vector_check (concat_extract_11 (a, b), INIT_ORDER (2, 4));
+ 
+   DEBUG0 ("\nTesting concat and extract #2\n");
+   vector_check (concat_extract2_0s (a, FIVE), INIT_ORDER (1, 5));
+   vector_check (concat_extract2_1s (a, FIVE), INIT_ORDER (2, 5));
+   vector_check (concat_extract2_s0 (SIX, a),  INIT_ORDER (6, 1));
+   vector_check (concat_extract2_s1 (SIX, a),  INIT_ORDER (6, 2));
+ 
+   DEBUG0 ("\nTesting variable concat and extract\n");
+   for (i = 0; i < 2; i++)
+     {
+       for (j = 0; j < 2; j++)
+ 	{
+ 	  static struct {
+ 	    TYPE hi;
+ 	    TYPE lo;
+ 	  } hilo[2][2] =
+ 	      { { { ONE, THREE }, { ONE, FOUR } },
+ 		{ { TWO, THREE }, { TWO, FOUR } } };
+ 
+ 	  vector_check (concat_extract_nn (a, b, i, j),
+ 			INIT_ORDER (hilo[i][j].hi, hilo[i][j].lo));
+ 	}
+     }
+ 
+   DEBUG0 ("\nTesting separate function\n");
+   vector_check (combine (vec_extract (a, 0), vec_extract (b, 0)),
+ 		INIT_ORDER (1, 3));
+ 
+   vector_check (combine (vec_extract (a, 0), vec_extract (b, 1)),
+ 		INIT_ORDER (1, 4));
+ 
+   vector_check (combine (vec_extract (a, 1), vec_extract (b, 0)),
+ 		INIT_ORDER (2, 3));
+ 
+   vector_check (combine (vec_extract (a, 1), vec_extract (b, 1)),
+ 		INIT_ORDER (2, 4));
+ 
+   vector_check (combine_insert (vec_extract (a, 0), vec_extract (b, 0)),
+ 		ELEMENT_ORDER (1, 3));
+ 
+   vector_check (combine_insert (vec_extract (a, 0), vec_extract (b, 1)),
+ 		ELEMENT_ORDER (1, 4));
+ 
+   vector_check (combine_insert (vec_extract (a, 1), vec_extract (b, 0)),
+ 		ELEMENT_ORDER (2, 3));
+ 
+   vector_check (combine_insert (vec_extract (a, 1), vec_extract (b, 1)),
+ 		ELEMENT_ORDER (2, 4));
+ 
+ 
+ #if defined(DO_DOUBLE)
+   DEBUG0 ("\nTesting explicit 2df concat\n");
+   vector_check (__builtin_vsx_concat_2df (FIVE, SIX), INIT_ORDER (5, 6));
+   vector_check (__builtin_vsx_concat_2df (five, six), INIT_ORDER (5, 6));
+ 
+ #elif defined(_ARCH_PPC64)
+   DEBUG0 ("\nTesting explicit 2di concat\n");
+   vector_check (__builtin_vsx_concat_2di (FIVE, SIX), INIT_ORDER (5, 6));
+   vector_check (__builtin_vsx_concat_2di (five, six), INIT_ORDER (5, 6));
+ 
+ #else
+   DEBUG0 ("\nSkip explicit 2di concat on 32-bit\n");
+ #endif
+ 
+ #ifdef DEBUG
+   if (errors)
+     printf ("\n%d error%s were found", errors, (errors == 1) ? "" : "s");
+   else
+     printf ("\nNo errors were found.\n");
+ 
+   return errors;
+ 
+ #else
+   return 0;
+ #endif
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-6.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-6.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-6.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-6.c	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,25 ----
+ /* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+ /* { dg-skip-if "" { powerpc*-*-darwin* } } */
+ /* { dg-require-effective-target powerpc_vsx_ok } */
+ /* { dg-options "-O2 -mvsx" } */
+ 
+ vector unsigned long
+ test_vpasted (vector unsigned long high, vector unsigned long low)
+ {
+   vector unsigned long res;
+   res[1] = high[1];
+   res[0] = low[0];
+   return res;
+ }
+ 
+ /* { dg-final { scan-assembler-times {\mxxpermdi\M} 1    } } */
+ /* { dg-final { scan-assembler-not   {\mvspltisw\M}      } } */
+ /* { dg-final { scan-assembler-not   {\mxxlor\M}         } } */
+ /* { dg-final { scan-assembler-not   {\mxxlxor\M}        } } */
+ /* { dg-final { scan-assembler-not   {\mxxspltib\M}      } } */
+ /* { dg-final { scan-assembler-not   {\mlxvx?\M}         } } */
+ /* { dg-final { scan-assembler-not   {\mlxv[dw][24]x\M}  } } */
+ /* { dg-final { scan-assembler-not   {\mlvx\M}           } } */
+ /* { dg-final { scan-assembler-not   {\mstxvx?\M}        } } */
+ /* { dg-final { scan-assembler-not   {\mstxv[dw][24]x\M} } } */
+ /* { dg-final { scan-assembler-not   {\mstvx\M}          } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-7.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-7.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-7.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vsx-extract-7.c	Wed Aug 30 13:38:27 2017
***************
*** 0 ****
--- 1,25 ----
+ /* { dg-do compile { target { powerpc*-*-* } } } */
+ /* { dg-skip-if "" { powerpc*-*-darwin* } } */
+ /* { dg-require-effective-target powerpc_vsx_ok } */
+ /* { dg-options "-O2 -mvsx" } */
+ 
+ vector double
+ test_vpasted (vector double high, vector double low)
+ {
+   vector double res;
+   res[1] = high[1];
+   res[0] = low[0];
+   return res;
+ }
+ 
+ /* { dg-final { scan-assembler-times {\mxxpermdi\M} 1    } } */
+ /* { dg-final { scan-assembler-not   {\mvspltisw\M}      } } */
+ /* { dg-final { scan-assembler-not   {\mxxlor\M}         } } */
+ /* { dg-final { scan-assembler-not   {\mxxlxor\M}        } } */
+ /* { dg-final { scan-assembler-not   {\mxxspltib\M}      } } */
+ /* { dg-final { scan-assembler-not   {\mlxvx?\M}         } } */
+ /* { dg-final { scan-assembler-not   {\mlxv[dw][24]x\M}  } } */
+ /* { dg-final { scan-assembler-not   {\mlvx\M}           } } */
+ /* { dg-final { scan-assembler-not   {\mstxvx?\M}        } } */
+ /* { dg-final { scan-assembler-not   {\mstxv[dw][24]x\M} } } */
+ /* { dg-final { scan-assembler-not   {\mstvx\M}          } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vsxcopy.c gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vsxcopy.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/powerpc/vsxcopy.c	Mon Jun  2 22:38:30 2014
--- gcc-6.5.0/gcc/testsuite/gcc.target/powerpc/vsxcopy.c	Wed Feb 14 20:03:21 2018
***************
*** 1,8 ****
  /* { dg-do compile { target { powerpc64*-*-* } } } */
  /* { dg-require-effective-target powerpc_vsx_ok } */
  /* { dg-options "-O1 -mvsx" } */
! /* { dg-final { scan-assembler "lxvd2x" } } */
! /* { dg-final { scan-assembler "stxvd2x" } } */
  /* { dg-final { scan-assembler-not "xxpermdi" } } */
  
  typedef float vecf __attribute__ ((vector_size (16)));
--- 1,8 ----
  /* { dg-do compile { target { powerpc64*-*-* } } } */
  /* { dg-require-effective-target powerpc_vsx_ok } */
  /* { dg-options "-O1 -mvsx" } */
! /* { dg-final { scan-assembler {\mlxvd2x\M|\mlxv\M} } } */
! /* { dg-final { scan-assembler {\mstxvd2x\M|\mstxv\M} } } */
  /* { dg-final { scan-assembler-not "xxpermdi" } } */
  
  typedef float vecf __attribute__ ((vector_size (16)));
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/htm-builtins-compile-4.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/htm-builtins-compile-4.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/htm-builtins-compile-4.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/htm-builtins-compile-4.c	Tue Jun  5 14:08:59 2018
***************
*** 0 ****
--- 1,10 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3 -march=zEC12 -mzarch" } */
+ 
+ /* A bug in the builtin definition made__builtin_tbeginc to have an
+    integer return argument.  */
+ void
+ must_not_compile1 (void)
+ {
+   int rc = __builtin_tbeginc (); /* { dg-error "void value not ignored as it ought to be" } */
+ }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-attr.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-attr.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-attr.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-attr.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,56 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3  -march=z10 --save-temps -mindirect-branch-table" } */
+ 
+ int gl;
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   gl = a + 40;
+ }
+ 
+ int __attribute__((noinline,noclone))
+ foo_value (int a)
+ {
+   return a + 40;
+ }
+ 
+ void* __attribute__((noinline,noclone))
+ get_fptr (int a)
+ {
+   switch (a)
+     {
+     case 0: return &foo; break;
+     case 1: return &foo_value; break;
+     default: __builtin_abort ();
+     }
+ }
+ 
+ void (*f) (int);
+ int (*g) (int);
+ 
+ int __attribute__((indirect_branch_call("thunk")))
+ main ()
+ {
+   int res;
+ 
+   f = get_fptr(0);
+   f (2);
+   if (gl != 42)
+     __builtin_abort ();
+ 
+   g = get_fptr(1);
+   if (g (2) != 42)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 2 x main
+ /* { dg-final { scan-assembler-times "brasl\t%r\[0-9\]*,__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-nothunk.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-nothunk.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-nothunk.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-nothunk.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,59 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3  -march=z10 --save-temps -mindirect-branch-call=thunk-extern -mindirect-branch-table" } */
+ 
+ int gl;
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   gl = a + 40;
+ }
+ 
+ int __attribute__((noinline,noclone))
+ foo_value (int a)
+ {
+   return a + 40;
+ }
+ 
+ void*  __attribute__((noinline,noclone))
+ get_fptr (int a)
+ {
+   switch (a)
+     {
+     case 0: return &foo; break;
+     case 1: return &foo_value; break;
+     default: __builtin_abort ();
+     }
+ }
+ 
+ void (*f) (int);
+ int (*g) (int);
+ 
+ int
+ main ()
+ {
+   int res;
+ 
+   f = get_fptr(0);
+   f (2);
+   if (gl != 42)
+     __builtin_abort ();
+ 
+   g = get_fptr(1);
+   if (g (2) != 42)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 2 x main
+ /* { dg-final { scan-assembler-times "brasl\t%r\[0-9\]*,__s390_indirect_jump" 2 } } */
+ 
+ /* No thunks due to thunk-extern.  */
+ /* { dg-final { scan-assembler-not "exrl" } } */
+ /* { dg-final { scan-assembler-not ".globl __s390_indirect_jump" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,56 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3  -march=z10 --save-temps -mindirect-branch-call=thunk -mindirect-branch-table" } */
+ 
+ int gl;
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   gl = a + 40;
+ }
+ 
+ int __attribute__((noinline,noclone))
+ foo_value (int a)
+ {
+   return a + 40;
+ }
+ 
+ void*  __attribute__((noinline,noclone))
+ get_fptr (int a)
+ {
+   switch (a)
+     {
+     case 0: return &foo; break;
+     case 1: return &foo_value; break;
+     default: __builtin_abort ();
+     }
+ }
+ 
+ void (*f) (int);
+ int (*g) (int);
+ 
+ int
+ main ()
+ {
+   int res;
+ 
+   f = get_fptr(0);
+   f (2);
+   if (gl != 42)
+     __builtin_abort ();
+ 
+   g = get_fptr(1);
+   if (g (2) != 42)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 2 x main
+ /* { dg-final { scan-assembler-times "brasl\t%r\[0-9\]*,__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-function-pointer-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,56 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3  -march=z900 --save-temps -mindirect-branch-call=thunk -mindirect-branch-table" } */
+ 
+ int gl;
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   gl = a + 40;
+ }
+ 
+ int __attribute__((noinline,noclone))
+ foo_value (int a)
+ {
+   return a + 40;
+ }
+ 
+ void*  __attribute__((noinline,noclone))
+ get_fptr (int a)
+ {
+   switch (a)
+     {
+     case 0: return &foo; break;
+     case 1: return &foo_value; break;
+     default: __builtin_abort ();
+     }
+ }
+ 
+ void (*f) (int);
+ int (*g) (int);
+ 
+ int
+ main ()
+ {
+   int res;
+ 
+   f = get_fptr(0);
+   f (2);
+   if (gl != 42)
+     __builtin_abort ();
+ 
+   g = get_fptr(1);
+   if (g (2) != 42)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 2 x main
+ /* { dg-final { scan-assembler-times "brasl\t%r\[0-9\]*,__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "ex\t" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-attr.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-attr.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-attr.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-attr.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,42 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void
+ foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void __attribute__((indirect_branch_jump("thunk")))
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* 2x bar */
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-attr.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-attr.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-attr.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-attr.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,42 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void __attribute__((indirect_branch_jump("thunk-inline")))
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int
+ main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* The two gotos in bar get merged.  */
+ /* { dg-final { scan-assembler-times "exrl" 1 } } */
+ 
+ /* { dg-final { scan-assembler-not "jg\t__s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,43 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mindirect-branch-jump=thunk-inline -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void
+ foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int
+ main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* The two gotos in bar get merged.  */
+ /* { dg-final { scan-assembler-times "exrl" 1 } } */
+ 
+ /* { dg-final { scan-assembler-not "jg\t__s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-inline-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,43 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 --save-temps -mindirect-branch-jump=thunk-inline -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void
+ foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int
+ main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* The two gotos in bar get merged.  */
+ /* { dg-final { scan-assembler-times "\tex\t" 1 } } */
+ 
+ /* { dg-final { scan-assembler-not "jg\t__s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-nothunk.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-nothunk.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-nothunk.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-nothunk.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,46 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mindirect-branch-jump=thunk-extern -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void
+ foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int
+ main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* 2 x bar
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ 
+ /* No thunks due to thunk-extern.  */
+ /* { dg-final { scan-assembler-not "exrl" } } */
+ /* { dg-final { scan-assembler-not ".globl __s390_indirect_jump" } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,43 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mindirect-branch-jump=thunk -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void
+ foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int
+ main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* 2x bar */
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-indirect-jump-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,43 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 --save-temps -mindirect-branch-jump=thunk -mindirect-branch-table" } */
+ /* { dg-require-effective-target label_values } */
+ 
+ /* This is a copy of the gcc.c-torture/execute/20040302-1.c
+    testcase.  */
+ 
+ int code[]={0,0,0,0,1};
+ 
+ void
+ foo(int x) {
+   volatile int b;
+   b = 0xffffffff;
+ }
+ 
+ void
+ bar(int *pc) {
+   static const void *l[] = {&&lab0, &&end};
+ 
+   foo(0);
+   goto *l[*pc];
+  lab0:
+   foo(0);
+   pc++;
+   goto *l[*pc];
+  end:
+   return;
+ }
+ 
+ int
+ main() {
+   bar(code);
+   return 0;
+ }
+ 
+ /* 2 x bar
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "ex\t" } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-no-dwarf2-cfi.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-no-dwarf2-cfi.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-no-dwarf2-cfi.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-no-dwarf2-cfi.c	Thu Apr 12 10:22:35 2018
***************
*** 0 ****
--- 1,19 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 --save-temps -mfunction-return-reg=thunk -mindirect-branch-table -fno-dwarf2-cfi-asm" } */
+ 
+ /* Make sure that we do not emit .cfi directives when -fno-dwarf2-cfi-asm is being used.  */
+ 
+ int
+ main ()
+ {
+   return 0;
+ }
+ 
+ /* 1 x main
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 1 } } */
+ /* { dg-final { scan-assembler "ex\t" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-all.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-all.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-all.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-all.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,46 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((function_return("thunk"),noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* With -march=z10 -mzarch the shrink wrapped returns use compare and
+    swap relative to jump to the exit block instead of making use of
+    the conditional return pattern.
+    FIXME: Use compare and branch register for that!!!! */
+ 
+ /* 2 x foo
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-neg.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-neg.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-neg.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-attr-neg.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,40 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mfunction-return-mem=thunk -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((function_return("keep"),noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int __attribute__((function_return("keep")))
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* { dg-final { scan-assembler-not "jg\t__s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-attr.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-attr.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-attr.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-attr.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,46 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((function_return_mem("thunk"),noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* With -march=z10 -mzarch the shrink wrapped returns use compare and
+    swap relative to jump to the exit block instead of making use of
+    the conditional return pattern.
+    FIXME: Use compare and branch register for that!!!! */
+ 
+ /* 2 x foo
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-nothunk.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-nothunk.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-nothunk.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-nothunk.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,49 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mfunction-return-mem=thunk-extern -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* With -march=z10 -mzarch the shrink wrapped returns use compare and
+    swap relative to jump to the exit block instead of making use of
+    the conditional return pattern.
+    FIXME: Use compare and branch register for that!!!! */
+ 
+ /* 2 x foo, 1 x main
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 3 } } */
+ 
+ /* No thunks due to thunk-extern.  */
+ /* { dg-final { scan-assembler-not "exrl" } } */
+ /* { dg-final { scan-assembler-not ".globl __s390_indirect_jump" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,46 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mfunction-return-mem=thunk -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* With -march=z10 -mzarch the shrink wrapped returns use compare and
+    swap relative to jump to the exit block instead of making use of
+    the conditional return pattern.
+    FIXME: Use compare and branch register for that!!!! */
+ 
+ /* 2 x foo, 1 x main
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 3 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-mem-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,48 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 --save-temps -mfunction-return-mem=thunk -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x foo, 1 x main
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ 
+ /* 1 x foo, conditional return, shrink wrapped
+ /* { dg-final { scan-assembler "jge\t__s390_indirect_jump" } } */
+ 
+ /* 1 x foo, conditional return, shrink wrapped
+ /* { dg-final { scan-assembler "jgle\t__s390_indirect_jump" } } */
+ 
+ /* { dg-final { scan-assembler "ex\t" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-attr.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-attr.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-attr.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-attr.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,41 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((function_return_reg("thunk"),noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 1 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-mixed.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-mixed.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-mixed.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-mixed.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,44 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 --save-temps -mfunction-return-reg=thunk -mindirect-branch-table" } */
+ 
+ /* We have to generate different thunks for indirect branches
+    depending on whether the code is compiled for pre z10 machines or
+    later.  This testcase makes sure this works within the same compile
+    unit.  */
+ 
+ int __attribute__((noinline,noclone,target("arch=z10")))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ int __attribute__((noinline,noclone,target("arch=z9-ec")))
+ foo (int a)
+ {
+   return a + 3;
+ }
+ 
+ int
+ main ()
+ {
+   if (bar (42) != 44)
+     __builtin_abort ();
+ 
+   if (foo (42) != 45)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar, 1 x foo */
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 2 } } */
+ /* 1 x foo */
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump_r1use" 1 } } */
+ 
+ /* { dg-final { scan-assembler-times "ex\t" 1 } } */
+ /* { dg-final { scan-assembler-times "exrl\t" 1 } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-nothunk.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-nothunk.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-nothunk.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-nothunk.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,44 ----
+ /* { dg-do compile } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mfunction-return-reg=thunk-extern -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 1 } } */
+ 
+ /* No thunks due to thunk-extern.  */
+ /* { dg-final { scan-assembler-not "exrl" } } */
+ /* { dg-final { scan-assembler-not ".globl __s390_indirect_jump" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,41 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 --save-temps -mfunction-return-reg=thunk -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 1 } } */
+ /* { dg-final { scan-assembler "exrl" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-return-reg-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,41 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 --save-temps -mfunction-return-reg=thunk -mindirect-branch-table" } */
+ 
+ int gl = 0;
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   return a + 2;
+ }
+ 
+ void __attribute__((noinline,noclone))
+ foo (int a)
+ {
+   int i;
+ 
+   if (a == 42)
+     return;
+ 
+   for (i = 0; i < a; i++)
+     gl += bar (i);
+ }
+ 
+ int
+ main ()
+ {
+   foo (3);
+   if (gl != 9)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "jg\t__s390_indirect_jump" 1 } } */
+ /* { dg-final { scan-assembler "ex\t" } } */
+ 
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler     "section\t.s390_return_reg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_mem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,78 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mindirect-branch-jump=thunk-inline -mindirect-branch-table" } */
+ 
+ /* case-values-threshold will be set to 20 by the back-end when jump
+    thunk are requested.  */
+ 
+ int __attribute__((noinline,noclone)) foo1 (void) { return 1; }
+ int __attribute__((noinline,noclone)) foo2 (void) { return 2; }
+ int __attribute__((noinline,noclone)) foo3 (void) { return 3; }
+ int __attribute__((noinline,noclone)) foo4 (void) { return 4; }
+ int __attribute__((noinline,noclone)) foo5 (void) { return 5; }
+ int __attribute__((noinline,noclone)) foo6 (void) { return 6; }
+ int __attribute__((noinline,noclone)) foo7 (void) { return 7; }
+ int __attribute__((noinline,noclone)) foo8 (void) { return 8; }
+ int __attribute__((noinline,noclone)) foo9 (void) { return 9; }
+ int __attribute__((noinline,noclone)) foo10 (void) { return 10; }
+ int __attribute__((noinline,noclone)) foo11 (void) { return 11; }
+ int __attribute__((noinline,noclone)) foo12 (void) { return 12; }
+ int __attribute__((noinline,noclone)) foo13 (void) { return 13; }
+ int __attribute__((noinline,noclone)) foo14 (void) { return 14; }
+ int __attribute__((noinline,noclone)) foo15 (void) { return 15; }
+ int __attribute__((noinline,noclone)) foo16 (void) { return 16; }
+ int __attribute__((noinline,noclone)) foo17 (void) { return 17; }
+ int __attribute__((noinline,noclone)) foo18 (void) { return 18; }
+ int __attribute__((noinline,noclone)) foo19 (void) { return 19; }
+ int __attribute__((noinline,noclone)) foo20 (void) { return 20; }
+ 
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   int ret = 0;
+ 
+   switch (a)
+     {
+     case 1: ret = foo1 (); break;
+     case 2: ret = foo2 (); break;
+     case 3: ret = foo3 (); break;
+     case 4: ret = foo4 (); break;
+     case 5: ret = foo5 (); break;
+     case 6: ret = foo6 (); break;
+     case 7: ret = foo7 (); break;
+     case 8: ret = foo8 (); break;
+     case 9: ret = foo9 (); break;
+     case 10: ret = foo10 (); break;
+     case 11: ret = foo11 (); break;
+     case 12: ret = foo12 (); break;
+     case 13: ret = foo13 (); break;
+     case 14: ret = foo14 (); break;
+     case 15: ret = foo15 (); break;
+     case 16: ret = foo16 (); break;
+     case 17: ret = foo17 (); break;
+     case 18: ret = foo18 (); break;
+     case 19: ret = foo19 (); break;
+     case 20: ret = foo20 (); break;
+     default:
+       __builtin_abort ();
+     }
+ 
+   return ret;
+ }
+ 
+ int
+ main ()
+ {
+   if (bar (3) != 3)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "exrl" 1 } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_fromreg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_frommem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-inline-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,78 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 -mzarch --save-temps -mindirect-branch-jump=thunk-inline -mindirect-branch-table" } */
+ 
+ /* case-values-threshold will be set to 20 by the back-end when jump
+    thunk are requested.  */
+ 
+ int __attribute__((noinline,noclone)) foo1 (void) { return 1; }
+ int __attribute__((noinline,noclone)) foo2 (void) { return 2; }
+ int __attribute__((noinline,noclone)) foo3 (void) { return 3; }
+ int __attribute__((noinline,noclone)) foo4 (void) { return 4; }
+ int __attribute__((noinline,noclone)) foo5 (void) { return 5; }
+ int __attribute__((noinline,noclone)) foo6 (void) { return 6; }
+ int __attribute__((noinline,noclone)) foo7 (void) { return 7; }
+ int __attribute__((noinline,noclone)) foo8 (void) { return 8; }
+ int __attribute__((noinline,noclone)) foo9 (void) { return 9; }
+ int __attribute__((noinline,noclone)) foo10 (void) { return 10; }
+ int __attribute__((noinline,noclone)) foo11 (void) { return 11; }
+ int __attribute__((noinline,noclone)) foo12 (void) { return 12; }
+ int __attribute__((noinline,noclone)) foo13 (void) { return 13; }
+ int __attribute__((noinline,noclone)) foo14 (void) { return 14; }
+ int __attribute__((noinline,noclone)) foo15 (void) { return 15; }
+ int __attribute__((noinline,noclone)) foo16 (void) { return 16; }
+ int __attribute__((noinline,noclone)) foo17 (void) { return 17; }
+ int __attribute__((noinline,noclone)) foo18 (void) { return 18; }
+ int __attribute__((noinline,noclone)) foo19 (void) { return 19; }
+ int __attribute__((noinline,noclone)) foo20 (void) { return 20; }
+ 
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   int ret = 0;
+ 
+   switch (a)
+     {
+     case 1: ret = foo1 (); break;
+     case 2: ret = foo2 (); break;
+     case 3: ret = foo3 (); break;
+     case 4: ret = foo4 (); break;
+     case 5: ret = foo5 (); break;
+     case 6: ret = foo6 (); break;
+     case 7: ret = foo7 (); break;
+     case 8: ret = foo8 (); break;
+     case 9: ret = foo9 (); break;
+     case 10: ret = foo10 (); break;
+     case 11: ret = foo11 (); break;
+     case 12: ret = foo12 (); break;
+     case 13: ret = foo13 (); break;
+     case 14: ret = foo14 (); break;
+     case 15: ret = foo15 (); break;
+     case 16: ret = foo16 (); break;
+     case 17: ret = foo17 (); break;
+     case 18: ret = foo18 (); break;
+     case 19: ret = foo19 (); break;
+     case 20: ret = foo20 (); break;
+     default:
+       __builtin_abort ();
+     }
+ 
+   return ret;
+ }
+ 
+ int
+ main ()
+ {
+   if (bar (3) != 3)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "\tex\t" 1 } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_fromreg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_frommem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z10.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z10.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z10.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z10.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,77 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z10 -mzarch --save-temps -mindirect-branch-jump=thunk -mindirect-branch-table" } */
+ /* case-values-threshold will be set to 20 by the back-end when jump
+    thunk are requested.  */
+ 
+ int __attribute__((noinline,noclone)) foo1 (void) { return 1; }
+ int __attribute__((noinline,noclone)) foo2 (void) { return 2; }
+ int __attribute__((noinline,noclone)) foo3 (void) { return 3; }
+ int __attribute__((noinline,noclone)) foo4 (void) { return 4; }
+ int __attribute__((noinline,noclone)) foo5 (void) { return 5; }
+ int __attribute__((noinline,noclone)) foo6 (void) { return 6; }
+ int __attribute__((noinline,noclone)) foo7 (void) { return 7; }
+ int __attribute__((noinline,noclone)) foo8 (void) { return 8; }
+ int __attribute__((noinline,noclone)) foo9 (void) { return 9; }
+ int __attribute__((noinline,noclone)) foo10 (void) { return 10; }
+ int __attribute__((noinline,noclone)) foo11 (void) { return 11; }
+ int __attribute__((noinline,noclone)) foo12 (void) { return 12; }
+ int __attribute__((noinline,noclone)) foo13 (void) { return 13; }
+ int __attribute__((noinline,noclone)) foo14 (void) { return 14; }
+ int __attribute__((noinline,noclone)) foo15 (void) { return 15; }
+ int __attribute__((noinline,noclone)) foo16 (void) { return 16; }
+ int __attribute__((noinline,noclone)) foo17 (void) { return 17; }
+ int __attribute__((noinline,noclone)) foo18 (void) { return 18; }
+ int __attribute__((noinline,noclone)) foo19 (void) { return 19; }
+ int __attribute__((noinline,noclone)) foo20 (void) { return 20; }
+ 
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   int ret = 0;
+ 
+   switch (a)
+     {
+     case 1: ret = foo1 (); break;
+     case 2: ret = foo2 (); break;
+     case 3: ret = foo3 (); break;
+     case 4: ret = foo4 (); break;
+     case 5: ret = foo5 (); break;
+     case 6: ret = foo6 (); break;
+     case 7: ret = foo7 (); break;
+     case 8: ret = foo8 (); break;
+     case 9: ret = foo9 (); break;
+     case 10: ret = foo10 (); break;
+     case 11: ret = foo11 (); break;
+     case 12: ret = foo12 (); break;
+     case 13: ret = foo13 (); break;
+     case 14: ret = foo14 (); break;
+     case 15: ret = foo15 (); break;
+     case 16: ret = foo16 (); break;
+     case 17: ret = foo17 (); break;
+     case 18: ret = foo18 (); break;
+     case 19: ret = foo19 (); break;
+     case 20: ret = foo20 (); break;
+     default:
+       __builtin_abort ();
+     }
+ 
+   return ret;
+ }
+ 
+ int
+ main ()
+ {
+   if (bar (3) != 3)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "exrl" 1 } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_fromreg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_frommem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z900.c gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z900.c
*** gcc-6.4.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z900.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gcc.target/s390/nobp-table-jump-z900.c	Wed Mar  7 13:10:35 2018
***************
*** 0 ****
--- 1,78 ----
+ /* { dg-do run } */
+ /* { dg-options "-O3 -march=z900 -mzarch --save-temps -mindirect-branch-jump=thunk -mindirect-branch-table" } */
+ 
+ /* case-values-threshold will be set to 20 by the back-end when jump
+    thunk are requested.  */
+ 
+ int __attribute__((noinline,noclone)) foo1 (void) { return 1; }
+ int __attribute__((noinline,noclone)) foo2 (void) { return 2; }
+ int __attribute__((noinline,noclone)) foo3 (void) { return 3; }
+ int __attribute__((noinline,noclone)) foo4 (void) { return 4; }
+ int __attribute__((noinline,noclone)) foo5 (void) { return 5; }
+ int __attribute__((noinline,noclone)) foo6 (void) { return 6; }
+ int __attribute__((noinline,noclone)) foo7 (void) { return 7; }
+ int __attribute__((noinline,noclone)) foo8 (void) { return 8; }
+ int __attribute__((noinline,noclone)) foo9 (void) { return 9; }
+ int __attribute__((noinline,noclone)) foo10 (void) { return 10; }
+ int __attribute__((noinline,noclone)) foo11 (void) { return 11; }
+ int __attribute__((noinline,noclone)) foo12 (void) { return 12; }
+ int __attribute__((noinline,noclone)) foo13 (void) { return 13; }
+ int __attribute__((noinline,noclone)) foo14 (void) { return 14; }
+ int __attribute__((noinline,noclone)) foo15 (void) { return 15; }
+ int __attribute__((noinline,noclone)) foo16 (void) { return 16; }
+ int __attribute__((noinline,noclone)) foo17 (void) { return 17; }
+ int __attribute__((noinline,noclone)) foo18 (void) { return 18; }
+ int __attribute__((noinline,noclone)) foo19 (void) { return 19; }
+ int __attribute__((noinline,noclone)) foo20 (void) { return 20; }
+ 
+ 
+ int __attribute__((noinline,noclone))
+ bar (int a)
+ {
+   int ret = 0;
+ 
+   switch (a)
+     {
+     case 1: ret = foo1 (); break;
+     case 2: ret = foo2 (); break;
+     case 3: ret = foo3 (); break;
+     case 4: ret = foo4 (); break;
+     case 5: ret = foo5 (); break;
+     case 6: ret = foo6 (); break;
+     case 7: ret = foo7 (); break;
+     case 8: ret = foo8 (); break;
+     case 9: ret = foo9 (); break;
+     case 10: ret = foo10 (); break;
+     case 11: ret = foo11 (); break;
+     case 12: ret = foo12 (); break;
+     case 13: ret = foo13 (); break;
+     case 14: ret = foo14 (); break;
+     case 15: ret = foo15 (); break;
+     case 16: ret = foo16 (); break;
+     case 17: ret = foo17 (); break;
+     case 18: ret = foo18 (); break;
+     case 19: ret = foo19 (); break;
+     case 20: ret = foo20 (); break;
+     default:
+       __builtin_abort ();
+     }
+ 
+   return ret;
+ }
+ 
+ int
+ main ()
+ {
+   if (bar (3) != 3)
+     __builtin_abort ();
+ 
+   return 0;
+ }
+ 
+ /* 1 x bar
+ /* { dg-final { scan-assembler-times "ex\t" 1 } } */
+ 
+ /* { dg-final { scan-assembler     "section\t.s390_indirect_jump" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_indirect_call" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_fromreg" } } */
+ /* { dg-final { scan-assembler-not "section\t.s390_return_frommem" } } */
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/allocatable_function_10.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/allocatable_function_10.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/allocatable_function_10.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/allocatable_function_10.f90	Wed Nov  1 17:24:35 2017
***************
*** 0 ****
--- 1,46 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR78293. The deallocations are present at the
+ ! end of the main programme to aid memory leak searching. The
+ ! allocation in 'tt' leaked memory from an intermediate temporary
+ ! for the array constructor.
+ !
+ ! Contributed by Andrew Benson  <abensonca@gmail.com>
+ !
+ module m
+   implicit none
+ 
+   type t
+      integer, allocatable, dimension(:) :: r
+   end type t
+ 
+ contains
+ 
+   function tt(a,b)
+     implicit none
+     type(t), allocatable, dimension(:) :: tt
+     type(t), intent(in), dimension(:) :: a,b
+     allocate(tt, source = [a,b])
+   end function tt
+ 
+   function ts(arg)
+     implicit none
+     type(t), allocatable, dimension(:) :: ts
+     integer, intent(in) :: arg(:)
+     allocate(ts(1))
+     allocate(ts(1)%r, source = arg)
+     return
+   end function ts
+ 
+ end module m
+ 
+ program p
+   use m
+   implicit none
+   type(t), dimension(2) :: c
+   c=tt(ts([99,199,1999]),ts([42,142]))
+   if (any (c(1)%r .ne. [99,199,1999])) call abort
+   if (any (c(2)%r .ne. [42,142])) call abort
+   deallocate(c(1)%r)
+   deallocate(c(2)%r)
+ end program p
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/allocate_assumed_charlen_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/allocate_assumed_charlen_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/allocate_assumed_charlen_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/allocate_assumed_charlen_1.f90	Tue Nov 14 17:38:38 2017
***************
*** 0 ****
--- 1,28 ----
+ ! { dg-do run }
+ !
+ ! PR82934: Segfault on compilation in trans-stmt.c:5919(8.0.0).
+ ! The original report only had one item in the allocate list. This
+ ! has been doubled up to verify that the correct string length is
+ ! is used in the allocation.
+ !
+ ! Contributed by FortranFan on clf.
+ !
+    character(len=42), allocatable :: foo
+    character(len=22), allocatable :: foofoo
+ 
+    call alloc( foo , foofoo)
+ 
+    if (len(foo) .ne. 42) call abort
+    if (len(foofoo) .ne. 22) call abort
+ 
+ contains
+ 
+    subroutine alloc( bar, barbar )
+ 
+       character(len=*), allocatable :: bar, barbar
+ 
+       allocate( character(len=*) :: bar , barbar) ! <= Here!
+ 
+    end subroutine
+ 
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/allocate_with_typespec_7.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/allocate_with_typespec_7.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/allocate_with_typespec_7.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/allocate_with_typespec_7.f90	Wed Jan 10 22:50:28 2018
***************
*** 0 ****
--- 1,14 ----
+ ! { dg-do compile }
+ ! PR Fortran/83093
+ ! Contributed by Gerhard Steinmetz  <gscfq at t-online dot de>
+ program p
+    integer, parameter :: n(2) = [1,2]
+    real :: x = 2
+    character(:), allocatable :: z, zz, zzz
+    character(:), allocatable :: y, yy
+    allocate (character(a) :: z)     ! { dg-error "Scalar INTEGER expression" }
+    allocate (character(x) :: zz)    ! { dg-error "Scalar INTEGER expression" }
+    allocate (character((1.0)) :: z) ! { dg-error "Scalar INTEGER expression" }
+    allocate (character(y) :: y)     ! { dg-error "Scalar INTEGER expression" }
+    allocate (character(n(1:2)) :: y)! { dg-error "Scalar INTEGER expression" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/array_constructor_52.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/array_constructor_52.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/array_constructor_52.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/array_constructor_52.f90	Mon Mar 19 22:49:33 2018
***************
*** 0 ****
--- 1,11 ----
+ ! { dg-do  run }
+ ! PR 84931 - long array constructors with type conversion were not
+ ! handled correctly.
+ program test
+    implicit none
+    integer, parameter :: n = 2**16
+    real, dimension(n) :: y
+    integer :: i
+    y = (/ (1, i=1, n) /)
+    if (y(2) /= 1) stop 1
+ end program test
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/associate_33.f03 gcc-6.5.0/gcc/testsuite/gfortran.dg/associate_33.f03
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/associate_33.f03	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/associate_33.f03	Wed May 16 10:41:48 2018
***************
*** 0 ****
--- 1,11 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR83898.f90
+ !
+ ! Contributed by G Steinmetz  <gscfq@t-online.de>
+ !
+ program p
+    associate (x => ['1','2'])
+       if (any (x .ne. ['1','2'])) call abort
+    end associate
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/assumed_charlen_parameter.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/assumed_charlen_parameter.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/assumed_charlen_parameter.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/assumed_charlen_parameter.f90	Wed Feb  7 21:01:00 2018
***************
*** 0 ****
--- 1,9 ----
+ ! { dg-do compile }
+ ! PR fortran/82049
+ ! Original code contributed by John Harper <john dot harper at vuw dot ac dot nz>
+ program ice ! f2003
+   implicit none
+   character(*), parameter:: a = 'ice', b = '*'
+   character(*), parameter:: c(2) = [character(len(a)) :: a, b]
+   print "(2A4)",adjustr(c)
+ end program ice
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/assumed_size_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/assumed_size_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/assumed_size_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/assumed_size_2.f90	Fri Oct 20 19:26:35 2017
***************
*** 0 ****
--- 1,4 ----
+ ! { dg-do compile }
+ subroutine foo(a)
+   dimension  a(*,*) ! { dg-error "Bad specification for assumed size array" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/automatic_module_variable.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/automatic_module_variable.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/automatic_module_variable.f90	Tue May 15 10:42:32 2012
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/automatic_module_variable.f90	Sun Feb 25 17:32:36 2018
***************
*** 1,10 ****
  ! { dg-do compile }
  ! Tests fix for PR15976
  !
  module sd
    integer, parameter :: n = 20
    integer :: i(n)
!   integer :: j(m) ! { dg-error "must have constant shape" }
    integer, pointer :: p(:)
    integer, allocatable :: q(:)
  contains
--- 1,12 ----
  ! { dg-do compile }
  ! Tests fix for PR15976
  !
+ ! Error message update with patch for PR fortran/83633
+ !
  module sd
    integer, parameter :: n = 20
    integer :: i(n)
!   integer :: j(m) ! { dg-error "array with nonconstant bounds" }
    integer, pointer :: p(:)
    integer, allocatable :: q(:)
  contains
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/bad_automatic_objects_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/bad_automatic_objects_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/bad_automatic_objects_1.f90	Tue May 15 10:42:32 2012
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/bad_automatic_objects_1.f90	Sun Feb 25 17:32:36 2018
***************
*** 5,20 ****
  !
  ! Contributed by Joost VandeVondele  <jv244@cam.ac.uk>
  !
  module foo
    integer    ::  i
  end module foo
  module bar
    use foo
!   integer, dimension (i) :: j ! { dg-error "must have constant shape" }
    character (len = i) :: c1   ! { dg-error "must have constant character length" }
  end module bar
  program foobar
    use foo
!   integer, dimension (i) :: k ! { dg-error "must have constant shape" }
    character (len = i) :: c2   ! { dg-error "must have constant character length" }
  end program foobar
--- 5,22 ----
  !
  ! Contributed by Joost VandeVondele  <jv244@cam.ac.uk>
  !
+ ! Error message update with patch for PR fortran/83633
+ !
  module foo
    integer    ::  i
  end module foo
  module bar
    use foo
!   integer, dimension (i) :: j ! { dg-error "array with nonconstant bounds" }
    character (len = i) :: c1   ! { dg-error "must have constant character length" }
  end module bar
  program foobar
    use foo
!   integer, dimension (i) :: k ! { dg-error "array with nonconstant bounds" }
    character (len = i) :: c2   ! { dg-error "must have constant character length" }
  end program foobar
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/class_66.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/class_66.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/class_66.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/class_66.f90	Mon Nov  6 11:50:53 2017
***************
*** 0 ****
--- 1,28 ----
+ ! { dg- do run }
+ !
+ ! Test the fix for PR78641 in which an ICE occured on assignment
+ ! of a class array constructor to a derived type array.
+ !
+ ! Contributed by Damian Rouson  <damian@sourceryinstitute.org>
+ !
+   implicit none
+   type foo
+     integer :: i = 99
+   end type
+   type(foo) :: bar(4)
+   class(foo), allocatable :: barfoo
+ 
+   allocate(barfoo,source = f(11))
+   bar = [f(33), [f(22), barfoo], f(1)]
+   if (any (bar%i .ne. [33, 22, 11, 1])) call abort
+   deallocate (barfoo)
+ 
+ contains
+ 
+   function f(arg) result(foobar)
+     class(foo), allocatable :: foobar
+     integer :: arg
+     allocate(foobar,source = foo(arg))
+   end function
+ 
+ end program
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/class_67.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/class_67.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/class_67.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/class_67.f90	Sat Mar  3 18:00:39 2018
***************
*** 0 ****
--- 1,55 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR78990 in which the scalarization of the assignment
+ ! in the main program failed for two reasons: (i) The conversion of 'v1'
+ ! into a class actual was being done after the call to 'return_t1', giving
+ ! rise to the ICE reported in comment #1; and (ii) The 'info' descriptor,
+ ! required for scalarization was not set, which gave rise to the ICE noted
+ ! by the contributor.
+ !
+ ! Contributed by Chris Macmackin  <cmacmackin@gmail.com>
+ !
+ module test_type
+   implicit none
+ 
+   type t1
+      integer :: i
+    contains
+      procedure :: assign
+      generic :: assignment(=) => assign
+   end type t1
+ 
+ contains
+ 
+   elemental subroutine assign(this,rhs)
+     class(t1), intent(inout) :: this
+     class(t1), intent(in) :: rhs
+     this%i = rhs%i
+   end subroutine assign
+ 
+   function return_t1(arg)
+     class(t1), dimension(:), intent(in) :: arg
+     class(t1), dimension(:), allocatable :: return_t1
+     allocate(return_t1(size(arg)), source=arg)
+   end function return_t1
+ 
+   function return_t1_p(arg)
+     class(t1), dimension(:), intent(in), target :: arg
+     class(t1), dimension(:), pointer :: return_t1_p
+     return_t1_p => arg
+   end function return_t1_p
+ end module test_type
+ 
+ program test
+   use test_type
+   implicit none
+ 
+   type(t1), dimension(3) :: v1, v2
+   v1%i = [1,2,3]
+   v2 = return_t1(v1)
+   if (any (v2%i .ne. v1%i)) call abort
+ 
+   v1%i = [4,5,6]
+   v2 = return_t1_p(v1)
+   if (any (v2%i .ne. v1%i)) call abort
+ end program test
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/class_array_15.f03 gcc-6.5.0/gcc/testsuite/gfortran.dg/class_array_15.f03
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/class_array_15.f03	Sun Oct 25 12:28:57 2015
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/class_array_15.f03	Wed Nov  1 17:24:35 2017
*************** subroutine pr54992  ! This test remains
*** 115,118 ****
    bh => bhGet(b,instance=2)
    if (loc (b) .ne. loc(bh%hostNode)) call abort
  end
! ! { dg-final { scan-tree-dump-times "builtin_free" 11 "original" } }
--- 115,118 ----
    bh => bhGet(b,instance=2)
    if (loc (b) .ne. loc(bh%hostNode)) call abort
  end
! ! { dg-final { scan-tree-dump-times "builtin_free" 12 "original" } }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray/get_to_indexed_array_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray/get_to_indexed_array_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray/get_to_indexed_array_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray/get_to_indexed_array_1.f90	Sat Apr 28 14:54:09 2018
***************
*** 0 ****
--- 1,32 ----
+ ! { dg-do run }
+ 
+ ! Test that index vector on lhs of caf-expression works correctly.
+ 
+ program pr81773
+ 
+   integer, parameter :: ndim = 5
+   integer :: i
+   integer :: vec(ndim) = -1
+   integer :: res(ndim)[*] = [ (i, i=1, ndim) ]
+   type T
+     integer :: padding
+     integer :: dest(ndim)
+     integer :: src(ndim)
+   end type
+ 
+   type(T) :: dest
+   type(T), allocatable :: caf[:]
+ 
+   vec([ndim, 3, 1]) = res(1:3)[1]
+   if (any (vec /= [ 3, -1, 2, -1, 1])) stop 1
+ 
+   dest = T(42, [ ( -1, i = 1, ndim ) ], [ ( i - 2, i = ndim, 1, -1) ] )
+   dest%dest([ 4,3,2 ]) = res(3:5)[1]
+   if (any (dest%dest /= [-1, 5, 4, 3, -1])) stop 2
+ 
+   vec(:) = -1
+   allocate(caf[*], source = T(42, [ ( -1, i = 1, ndim ) ], [ ( i - 2, i = ndim, 1, -1) ] ))
+   vec([ 5,3,2 ]) = caf[1]%src(2:4)
+   if (any (vec /= [ -1, 0, 1, -1, 2])) stop 3
+ end
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray/get_to_indirect_array.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray/get_to_indirect_array.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray/get_to_indirect_array.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray/get_to_indirect_array.f90	Sat Apr 28 14:54:09 2018
***************
*** 0 ****
--- 1,28 ----
+ ! { dg-do run }
+ !
+ ! Test that pr81773/fortran is fixed.
+ 
+ program get_to_indexed_array
+ 
+   integer, parameter :: ndim = 5
+   integer :: i
+   integer :: vec(1:ndim) = 0
+   integer :: indx(1:2) = [3, 2]
+   integer :: mat(1:ndim, 1:ndim) = 0
+   integer :: res(1:ndim)[*]=[ (i, i=1, ndim) ]
+ 
+   ! No sync needed, because this test always is running on single image
+   vec([ndim , 1]) = res(1:2)[1]
+   if (vec(1) /= res(2) .or. vec(ndim) /= res(1)) then
+     print *,"vec: ", vec, " on image: ", this_image()
+     stop 1
+   end if
+ 
+   mat(2:3,[indx(:)]) = reshape(res(1:4)[1], [2, 2])
+   if (any(mat(2:3, 3:2:-1) /= reshape(res(1:4), [2,2]))) then
+     print *, "mat: ", mat, " on image: ", this_image()
+     stop 2
+   end if
+ end
+ 
+ ! vim:ts=2:sts=2:sw=2:
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_3.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_3.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_3.f90	Wed Dec 31 17:16:06 2014
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_3.f90	Fri May 25 20:02:05 2018
*************** end critical fkl ! { dg-error "Expecting
*** 13,19 ****
  
  sync all (stat=1) ! { dg-error "Syntax error in SYNC ALL" }
  sync all ( stat = n,stat=k) ! { dg-error "Redundant STAT" }
! sync memory (errmsg=str)
  sync memory (errmsg=n) ! { dg-error "must be a scalar CHARACTER variable" }
  sync images (*, stat=1.0) ! { dg-error "Syntax error in SYNC IMAGES" }
  sync images (-1) ! { dg-error "must between 1 and num_images" }
--- 13,19 ----
  
  sync all (stat=1) ! { dg-error "Syntax error in SYNC ALL" }
  sync all ( stat = n,stat=k) ! { dg-error "Redundant STAT" }
! sync memory (errmsg=str) ! { dg-error "must be a scalar CHARACTER variable" }
  sync memory (errmsg=n) ! { dg-error "must be a scalar CHARACTER variable" }
  sync images (*, stat=1.0) ! { dg-error "Syntax error in SYNC IMAGES" }
  sync images (-1) ! { dg-error "must between 1 and num_images" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_43.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_43.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_43.f90	Sun Jan 29 13:50:23 2017
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_43.f90	Sat Nov 11 16:42:36 2017
***************
*** 1,5 ****
--- 1,6 ----
  ! { dg-do link }
  ! { dg-options "-fcoarray=lib -lcaf_single" }
+ ! { dg-additional-options "-latomic" { target libatomic_available } }
  
  program coarray_43
    implicit none
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_8.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_8.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_8.f90	Sun Feb 28 19:07:42 2016
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_8.f90	Tue Mar  6 19:30:41 2018
*************** end module mmm4
*** 145,151 ****
  
  subroutine tfgh()
    integer :: i(2)
!   DATA i/(i, i=1,2)/ ! { dg-error "Expected PARAMETER symbol" }
    do i = 1, 5 ! { dg-error "cannot be an array" }
    end do ! { dg-error "Expecting END SUBROUTINE" }
  end subroutine tfgh
--- 145,151 ----
  
  subroutine tfgh()
    integer :: i(2)
!   DATA i/(i, i=1,2)/ ! { dg-error "Syntax error in DATA" }
    do i = 1, 5 ! { dg-error "cannot be an array" }
    end do ! { dg-error "Expecting END SUBROUTINE" }
  end subroutine tfgh
*************** end subroutine tfgh
*** 153,159 ****
  subroutine tfgh2()
    integer, save :: x[*]
    integer :: i(2)
!   DATA i/(x, x=1,2)/ ! { dg-error "Expected PARAMETER symbol" }
    do x = 1, 5 ! { dg-error "cannot be a coarray" }
    end do ! { dg-error "Expecting END SUBROUTINE" }
  end subroutine tfgh2
--- 153,159 ----
  subroutine tfgh2()
    integer, save :: x[*]
    integer :: i(2)
!   DATA i/(x, x=1,2)/ ! { dg-error "Syntax error in DATA" }
    do x = 1, 5 ! { dg-error "cannot be a coarray" }
    end do ! { dg-error "Expecting END SUBROUTINE" }
  end subroutine tfgh2
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_dependency_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_dependency_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_dependency_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_dependency_1.f90	Sun May  6 12:14:11 2018
***************
*** 0 ****
--- 1,11 ----
+ ! { dg-do compile }
+ ! { dg-options "-fcoarray=lib -lcaf_single" }
+ !
+ ! Check that reffing x on both sides of a coarray send does not ICE. 
+ ! PR 85507
+ 
+ program check_dependency
+   integer :: x[*]
+   x[42] = x
+ end program check_dependency
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_lib_comm_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_lib_comm_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/coarray_lib_comm_1.f90	Wed Dec 30 20:21:57 2015
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/coarray_lib_comm_1.f90	Sun May  6 12:14:11 2018
*************** B(1:5) = B(3:7)
*** 38,46 ****
  if (any (A-B /= 0)) call abort
  end
  
! ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, &parm.\[0-9\]+, 4, 4, 0\\\);" 1 "original" } }
! ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, &parm.\[0-9\]+, 4, 4, 1\\\);" 1 "original" } }
  ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, &p, 4, 4, 1\\\);" 1 "original" } }
  ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.1, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) b, 1, &parm.\[0-9\]+, 0B, &p, 4, 4, 0\\\);" 1 "original" } }
! ! { dg-final { scan-tree-dump-times "_gfortran_caf_sendget \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, 4, 4, 0\\\);" 1 "original" } }
  
--- 38,45 ----
  if (any (A-B /= 0)) call abort
  end
  
! ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, &parm.\[0-9\]+, 4, 4, 1\\\);" 2 "original" } }
  ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, &p, 4, 4, 1\\\);" 1 "original" } }
  ! { dg-final { scan-tree-dump-times "_gfortran_caf_get \\\(caf_token.1, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) b, 1, &parm.\[0-9\]+, 0B, &p, 4, 4, 0\\\);" 1 "original" } }
! ! { dg-final { scan-tree-dump-times "_gfortran_caf_sendget \\\(caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, caf_token.0, \\\(integer\\\(kind=\[48\]\\\)\\\) parm.\[0-9\]+.data - \\\(integer\\\(kind=\[48\]\\\)\\\) a, 1, &parm.\[0-9\]+, 0B, 4, 4, 1\\\);" 1 "original" } }
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/data_substring.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/data_substring.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/data_substring.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/data_substring.f90	Sat Feb 24 20:24:27 2018
***************
*** 0 ****
--- 1,6 ----
+ ! { dg-do compile }
+ ! PR fortran/30792
+ character string*1025
+ integer i
+ data (string(i:i),i=1,1025)/1025*'?'/  ! { dg-error "Invalid substring" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/deallocate_error_3.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/deallocate_error_3.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/deallocate_error_3.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/deallocate_error_3.f90	Wed Feb  7 22:41:59 2018
***************
*** 0 ****
--- 1,9 ----
+ ! { dg-do compile }
+ ! PR fortran/82994
+ ! Code contributed by Gerhard Steinmetz
+ program p
+    type t
+    end type
+    class(t) :: x  ! { dg-error "must be dummy, allocatable or pointer" }
+    deallocate (x) ! { dg-error "not a nonprocedure pointer nor an allocatable" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/deallocate_error_4.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/deallocate_error_4.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/deallocate_error_4.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/deallocate_error_4.f90	Wed Feb  7 22:41:59 2018
***************
*** 0 ****
--- 1,10 ----
+ ! { dg-do compile }
+ ! PR fortran/82994
+ ! Code contributed by Gerhard Steinmetz
+ program p
+    type t
+    end type
+    class(t) :: x  ! { dg-error "must be dummy, allocatable or pointer" }
+    allocate (x)   ! { dg-error "neither a data pointer nor an allocatable" }
+    deallocate (x) ! { dg-error "not a nonprocedure pointer nor an allocatable" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/deferred_character_18.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/deferred_character_18.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/deferred_character_18.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/deferred_character_18.f90	Wed Jan 10 23:55:00 2018
***************
*** 0 ****
--- 1,29 ----
+ ! { dg-do compile }
+ ! PR Fortran/82367
+ ! Contributed by Walter Spector <w6ws at earthlink dot net>
+ module cls_allocmod
+   implicit none
+ 
+ contains
+ 
+  subroutine cls_alloc (n, str)
+     integer,  intent(in) :: n
+     character(*), allocatable, intent(out) :: str
+ !  Note: Star ^ should have been a colon (:)
+ 
+     allocate (character(n)::str)
+ 
+   end subroutine
+ 
+ end module
+ 
+ program cls
+   use cls_allocmod
+   implicit none
+ 
+   character(:), allocatable :: s
+ 
+   call cls_alloc(42, s) ! { dg-error "allocatable or pointer dummy argument" }
+   print *, 'string len =', len(s)
+ 
+ end program
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/derived_init_4.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/derived_init_4.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/derived_init_4.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/derived_init_4.f90	Thu Oct 19 12:16:41 2017
***************
*** 0 ****
--- 1,59 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR81048, where in the second call to 'g2' the
+ ! default initialization was "forgotten". 'g1', 'g1a' and 'g3' check
+ ! that this does not occur for scalars and explicit results.
+ !
+ ! Contributed by David Smith  <dm577216smith@gmail.com>
+ !
+ program test
+    type f
+        integer :: f = -1
+    end type
+    type(f) :: a, b(3)
+    type(f), allocatable :: ans
+    b = g2(a)
+    b = g2(a)
+    ans = g1(a)
+    if (ans%f .ne. -1) call abort
+    ans = g1(a)
+    if (ans%f .ne. -1) call abort
+    ans = g1a(a)
+    if (ans%f .ne. -1) call abort
+    ans = g1a(a)
+    if (ans%f .ne. -1) call abort
+    b = g3(a)
+    b = g3(a)
+ contains
+    function g3(a) result(res)
+       type(f) :: a, res(3)
+       do j = 1, 3
+          if (res(j)%f == -1) then
+              res(j)%f = a%f - 1
+          else
+              call abort
+          endif
+       enddo
+    end function g3
+ 
+    function g2(a)
+       type(f) :: a, g2(3)
+       do j = 1, 3
+          if (g2(j)%f == -1) then
+              g2(j)%f = a%f - 1
+          else
+              call abort
+          endif
+       enddo
+    end function g2
+ 
+    function g1(a)
+      type(f) :: g1, a
+      if (g1%f .ne. -1 ) call abort
+    end function
+ 
+    function g1a(a) result(res)
+      type(f) :: res, a
+      if (res%f .ne. -1 ) call abort
+    end function
+ end program test
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/equiv_pure.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/equiv_pure.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/equiv_pure.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/equiv_pure.f90	Sat Nov  4 17:16:39 2017
***************
*** 0 ****
--- 1,50 ----
+ ! { dg-do compile }
+ module eq
+    implicit none
+    integer :: n1, n2
+    integer, dimension(2) :: a
+    equivalence (a(1), n1)
+    equivalence (a(2), n2)
+    common /a/ a
+ end module eq
+ 
+ module m
+    use eq
+    implicit none
+    type, public :: t
+      integer :: i
+    end type t
+ end module m
+ 
+ module p
+    implicit none
+    contains
+    pure integer function d(h)
+      use m
+      implicit none
+      integer, intent(in) :: h
+      d = h
+    end function
+ end module p
+ 
+ module q
+    implicit none
+    contains
+    pure integer function d(h)
+      use m, only : t
+      implicit none
+      integer, intent(in) :: h
+      d = h
+    end function
+ end module q
+ 
+ module r
+    implicit none
+    contains
+    pure integer function d(h)
+      use m, only : a          ! { dg-error "cannot be an EQUIVALENCE object" }
+      implicit none
+      integer, intent(in) :: h
+      d = h
+    end function
+ end module r
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/execute_command_line_3.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/execute_command_line_3.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/execute_command_line_3.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/execute_command_line_3.f90	Sun Oct 22 14:21:16 2017
***************
*** 0 ****
--- 1,23 ----
+ ! { dg-do  run }
+ ! PR 82233 - there were program aborts for some of these commands.
+ ! Original test case by Urban Jost.
+ program boom
+ implicit none
+ integer                       :: i,j 
+ character(len=256)            :: msg
+ character(len=:), allocatable :: command
+    command='notthere'
+    msg='' ! seems to only be defined if exitstatus.ne.0
+    ! ok -- these work
+    call execute_command_line(command , wait=.false., exitstat=i, cmdstat=j, cmdmsg=msg)
+    if (j /= 0 .or. msg /= '') call abort
+    call execute_command_line(command ,               exitstat=i, cmdstat=j, cmdmsg=msg )
+    if (j /= 3 .or. msg /= "Invalid command line" ) call abort
+    msg = ''
+    call execute_command_line(command , wait=.false., exitstat=i,            cmdmsg=msg )
+    if (j /= 3) call abort
+    call execute_command_line(command , wait=.false., exitstat=i                        )
+    if (msg /= '') call abort
+    call execute_command_line(command ,               exitstat=i, cmdstat=j             )
+ 
+ end program boom
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/explicit_shape_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/explicit_shape_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/explicit_shape_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/explicit_shape_1.f90	Sun Feb 25 17:32:36 2018
***************
*** 0 ****
--- 1,7 ----
+ ! { dg-do compile }
+ ! PR fortran/83633
+ ! Original testcase by Nathan T. Weeks  <weeks at iastate dot edu>
+ !
+ integer :: A(command_argument_count()) = 1 ! { dg-error "nonconstant bounds" }
+ write (*,*) A
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/generic_34.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/generic_34.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/generic_34.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/generic_34.f90	Fri Sep  7 18:01:23 2018
***************
*** 0 ****
--- 1,27 ----
+ ! { dg-do compile }
+ !
+ ! PR 86116: [6/7/8/9 Regression] Ambiguous generic interface not recognised
+ !
+ ! Contributed by martin <mscfd@gmx.net>
+ 
+ module mod
+ 
+    type :: t
+    end type t
+ 
+    interface sub
+       module procedure s1
+       module procedure s2
+    end interface
+ 
+ contains
+ 
+    subroutine s1(x)  ! { dg-error "Ambiguous interfaces in generic interface" }
+       type(t) :: x
+    end subroutine
+ 
+    subroutine s2(x)  ! { dg-error "Ambiguous interfaces in generic interface" }
+       class(*), allocatable :: x
+    end subroutine
+ 
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/gomp/pr85313.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/gomp/pr85313.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/gomp/pr85313.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/gomp/pr85313.f90	Mon Jun 25 17:47:12 2018
***************
*** 0 ****
--- 1,25 ----
+ ! PR fortran/85313
+ ! { dg-do compile }
+ 
+ !$omp do collapse(3)
+   do i = 1, 10
+     do j = i, 20	! { dg-error "form rectangular iteration space" }
+       do k = 1, 2
+       end do
+     end do
+   end do
+ !$omp do collapse(3)
+   do i = 1, 10
+     do j = 1, 5
+       do k = i, 20	! { dg-error "form rectangular iteration space" }
+       end do
+     end do
+   end do
+ !$omp do collapse(3)
+   do i = 1, 10
+     do j = 1, 5
+       do k = j, 20	! { dg-error "form rectangular iteration space" }
+       end do
+     end do
+   end do
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/implied_do_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/implied_do_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/implied_do_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/implied_do_2.f90	Tue Mar  6 19:30:41 2018
***************
*** 0 ****
--- 1,7 ----
+ ! { dg-do compile }
+ ! PR fortran/56667
+ program error_message
+    implicit none
+    integer :: ir
+    write(*,*) ( ir, ir = 1,10    ! { dg-error "Expected a right parenthesis" }
+ end program error_message 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/inquire_19.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/inquire_19.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/inquire_19.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/inquire_19.f90	Fri Feb 23 19:53:04 2018
***************
*** 0 ****
--- 1,13 ----
+ ! { dg-do run }
+ ! PR84506  INQUIRE(pos=) always sets pos=0 with -fdefault-integer-8
+ program TestInquire
+    implicit none
+    integer(8) :: iUnit
+    integer(8) :: iPos
+    open(newunit=iunit, file='output.txt', access='stream', status='replace')
+    write(iUnit) 'TEXT'
+    inquire(iUnit, pos=iPos)
+    close(iUnit, status='delete')
+    !print *, iPos
+    if (iPos.ne.5) stop 1
+ end program TestInquire
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/interface_40.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/interface_40.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/interface_40.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/interface_40.f90	Sat Jan 13 19:12:32 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do compile }
+ ! PR fortran/78814
+ ! Code contributed by Gerhard Steinmetz
+ program p
+    class(*) :: x  ! { dg-error " must be dummy, allocatable or pointer" }
+    print *, f(x)
+ end
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/interface_41.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/interface_41.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/interface_41.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/interface_41.f90	Wed Mar 21 01:27:42 2018
***************
*** 0 ****
--- 1,19 ----
+ ! { dg-do compile }
+ ! PR fortran/85001 
+ ! Contributed by Gerhard Steinmetz.
+ program p
+    type t
+    end type
+    call s
+ contains
+    real function f(x)
+       class(t) :: x
+       dimension :: x(:)
+       f = 1.0
+    end
+    subroutine s
+       type(t) :: x(2)
+       real :: z
+       z = f(x)     ! { dg-error "Rank mismatch in argument" }
+    end
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/matmul_17.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/matmul_17.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/matmul_17.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/matmul_17.f90	Sat Jan 20 08:29:23 2018
***************
*** 0 ****
--- 1,9 ----
+ ! { dg-do run }
+ ! PR Fortran/83900
+ ! Contributed by Gerhard Steinmetz  <gscfq t t-online dot de>
+ program p
+    integer, parameter :: a(3,2) = 1
+    real, parameter :: b(2,3) = 2
+    real, parameter :: c(3,3) = matmul(a, b)
+    if (any(c /= 4.)) call abort
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/matmul_18.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/matmul_18.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/matmul_18.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/matmul_18.f90	Sat Jan 20 20:56:45 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do run }
+ program p
+    integer, parameter :: a(3,2) = 1
+    real, parameter :: b(2,3) = 2
+    real d(3,3)
+    d = 4
+    if (any(d /= matmul(a,b))) call abort
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/matmul_rank_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/matmul_rank_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/matmul_rank_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/matmul_rank_1.f90	Wed Mar 28 17:41:51 2018
***************
*** 0 ****
--- 1,9 ----
+ ! { dg-do compile }
+ ! { dg-additional-options "-ffrontend-optimize" }
+ ! PR 85044 - used to die on allocating a negative amount of memory.
+ ! Test case by Gerhard Steinmetz.
+ program p
+    real :: a(3,3) = 1.0
+    real :: b(33)
+    b = matmul(a, a) ! { dg-error "Incompatible ranks" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/num_images_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/num_images_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/num_images_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/num_images_1.f90	Fri Jan 19 23:51:18 2018
***************
*** 0 ****
--- 1,10 ----
+ ! { dg-do compile }
+ ! { dg-options "-fcoarray=single -std=f2008" }
+ ! PR  Fortran/80768
+ !
+ program foo
+    implicit none
+    integer k5
+    k5 = num_images(failed=.false.) ! { dg-error "argument to NUM_IMAGES" }
+    print *, k5
+ end program foo
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr64124.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr64124.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr64124.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr64124.f90	Thu Mar  8 19:06:57 2018
***************
*** 0 ****
--- 1,5 ----
+ ! { dg-do compile }
+ ! PR fortran/64124.f90
+   character(len=kind(1)) x
+   integer(len(x)) y
+   end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr65453.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr65453.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr65453.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr65453.f90	Mon Mar 19 19:14:06 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do compile }
+ ! PR fortran/65453
+ ! Contributed by Tobias Burnus  <burnus at gcc.gnu.org>
+ procedure() :: foo   ! { dg-error "(1)" }
+   contains
+     subroutine foo() ! { dg-error "clashes with procedure" }
+     end
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr69739.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr69739.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr69739.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr69739.f90	Mon Nov  6 11:48:32 2017
***************
*** 0 ****
--- 1,39 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR69739 in which the statement
+ ! R = operate(A, X) caused an ICE.
+ !
+ ! Contributed by John  <jwmwalrus@gmail.com>
+ !
+ module test
+ 
+   implicit none
+   type, public :: sometype
+     real :: a    =  0.
+   end type
+ contains
+ 
+   function dosomething(A) result(r)
+     type(sometype), intent(IN) :: A(:,:,:)
+     integer :: N
+     real, allocatable ::   R(:), X(:)
+ 
+     N = PRODUCT(UBOUND(A))
+     allocate (R(N),X(N))
+     X = [(real(N), N = 1, size(X, 1))]
+     R = operate(A, X)
+   end function
+ 
+   function operate(A, X)
+     type(sometype), intent(IN) :: A(:,:,:)
+     real, intent(IN) :: X(:)
+     real :: operate(1:PRODUCT(UBOUND(A)))
+ 
+     operate = x
+   end function
+ end module test
+ 
+   use test
+   type(sometype) :: a(2, 2, 2)
+   if (any(int (dosomething(a)) .ne. [1,2,3,4,5,6])) call abort
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr70409.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr70409.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr70409.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr70409.f90	Thu Mar  8 19:06:57 2018
***************
*** 0 ****
--- 1,23 ----
+ ! { dg-do run }
+ ! PR fortran/70409
+ ! Contriubted by Harald Anlauf  <anlauf at gmx dot de>
+ program foo
+   integer, parameter :: huge_1 = huge(0_1)
+   character(    huge_1      ), parameter :: x = 'abc'
+   character(    huge(0_1)   ), parameter :: y = 'abc'
+   character(    huge(0_1)+0 ), parameter :: z = 'abcdef'
+   character(    huge(0_1)   )            :: a = 'abc'
+   integer, parameter :: huge_2 = huge(0_2)
+   character(    huge_2      ), parameter :: u = 'abc'
+   character(    huge(0_2)   ), parameter :: v = 'abc'
+   character(int(huge(0_2),4)), parameter :: w = 'abcdef'
+   character(    huge(0_2)   )            :: b = 'abc'
+   if (len(x) /= huge_1) stop 1
+   if (len(y) /= huge_1) stop 2
+   if (len(z) /= huge_1) stop 3
+   if (len(a) /= huge_1) stop 4
+   if (len(u) /= huge_2) stop 5
+   if (len(v) /= huge_2) stop 6
+   if (len(w) /= huge_2) stop 7
+   if (len(b) /= huge_2) stop 8
+ end program foo
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr70754.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr70754.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr70754.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr70754.f90	Thu Feb  1 12:00:57 2018
***************
*** 0 ****
--- 1,35 ----
+ ! { dg-do compile }
+ ! { dg-options "-Ofast" }
+ module m
+   implicit none
+   private
+   save
+ 
+   integer, parameter, public :: &
+     ii4          = selected_int_kind(6), &
+     rr8          = selected_real_kind(13)
+ 
+   integer (ii4), dimension(40,40,199), public :: xyz
+   public :: foo
+ contains
+   subroutine foo(a)
+     real (rr8), dimension(40,40), intent(out) :: a
+     real (rr8), dimension(40,40) :: b
+     integer (ii4), dimension(40,40) :: c
+     integer  i, j
+ 
+     do i=1,20
+       b(i,j) = 123 * a(i,j) + 34 * a(i,j+1) &
+              + 34 * a(i,j-1) + a(i+1,j+1) &
+              + a(i+1,j-1) + a(i-1,j+1) &
+              + a(i-1,j-1)
+       c(i,j) = 123
+     end do
+ 
+     where ((xyz(:,:,2) /= 0) .and. (c /= 0))
+       a = b/real(c)
+     elsewhere
+       a = 456
+     endwhere
+  end subroutine foo
+ end module m
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr70870_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr70870_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr70870_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr70870_1.f90	Fri May 11 18:35:20 2018
***************
*** 0 ****
--- 1,9 ----
+ ! { dg-do compile }
+ ! PR fortran/70870
+ ! Contributed by Vittorio Zecca <zeccav at gmail dot com >
+       type t
+        integer :: g=0   ! default initialization
+       end type
+       type(t) :: v2
+       data v2/t(2)/     ! { dg-error "default initialization shall not" }
+       end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr71085.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr71085.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr71085.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr71085.f90	Sun Mar  4 05:11:31 2018
***************
*** 0 ****
--- 1,12 ----
+ ! { dg-do compile }
+ ! PR 71085
+ !
+ ! Testcase from PR by Vladimir Fuka <vladimir.fuka@gmail.com>
+ !
+ program pr71085
+   print *, f()
+ contains
+   function f()
+     integer :: f(iargc()*10)
+   end
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr78619.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr78619.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr78619.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr78619.f90	Tue Nov 14 08:15:52 2017
***************
*** 0 ****
--- 1,21 ----
+ ! { dg-do compile }
+ ! { dg-options "-Werror -O3" }
+ !
+ ! Tests the fix for PR78619, in which the recursive use of 'f' at line 13
+ ! caused an ICE.
+ !
+ ! Contributed by Gerhard Steinmetz  <gerhard.steinmetz.fortran@t-online.de>
+ !
+   print *, g(1.0) ! 'g' is OK
+ contains
+   function f(x) result(z)
+     real :: x, z
+     z = sign(1.0, f) ! { dg-error "calling itself recursively|must be the same type" }
+   end
+   real function g(x)
+     real :: x
+     g = -1
+     g = -sign(1.0, g) ! This is OK.
+   end
+ end
+ ! { dg-message "all warnings being treated as errors" "" { target *-*-* } 0 }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr81735.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr81735.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr81735.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr81735.f90	Fri Nov  3 19:17:19 2017
***************
*** 0 ****
--- 1,25 ----
+ ! { dg-do compile }
+ ! { dg-options "-fdump-tree-original" }
+ !
+ ! Contributed by Danila  <flashmozzg@gmail.com>
+ !
+ program fooprog
+     implicit none
+     type FooType
+         integer, allocatable :: x
+     end type FooType
+ 
+     type(FooType), pointer :: bar
+ 
+     bar => foo()
+ 
+ contains
+     function foo() result(res)
+         type(FooType), pointer :: res
+ 
+         character(:), allocatable :: rt
+         rt = ""
+         res => null()
+     end function foo
+ end program fooprog
+ ! { dg-final { scan-tree-dump-times "__builtin_free" 1 "original" } }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr82253.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr82253.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr82253.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr82253.f90	Mon Jun 25 16:51:38 2018
***************
*** 0 ****
--- 1,40 ----
+ ! PR middle-end/82253
+ ! { dg-do compile { target fortran_real_16 } }
+ ! { dg-options "-Og" }
+ 
+ module pr82253
+   implicit none
+   private
+   public :: static_type
+   type, public :: T
+     procedure(), nopass, pointer :: testProc => null()
+   end type
+   type, public :: S
+     complex(kind=16), pointer :: ptr
+   end type
+   type(T), target :: type_complex32
+   interface static_type
+     module procedure foo
+   end interface
+   interface
+     subroutine bar (testProc)
+       procedure(), optional :: testProc
+     end subroutine
+   end interface
+   contains
+     function foo (self) result(res)
+       complex(kind=16) :: self
+       type(T), pointer :: res
+       call bar (testProc = baz)
+     end function
+     subroutine baz (buffer, status)
+       character(len=*) :: buffer
+       integer(kind=4) :: status
+       complex(kind=16), target :: obj
+       type(S) :: self
+       integer(kind=1), parameter :: zero(storage_size(obj)/8) = 0
+       obj = transfer (zero, obj)
+       self%ptr => obj
+       write (buffer, *, iostat=status) self%ptr, '#'
+     end subroutine
+ end module pr82253
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149.f90	Wed May 16 11:42:47 2018
***************
*** 0 ****
--- 1,14 ----
+ ! Compiled with pr83149_1.f90
+ !
+ module mod1
+   integer :: ncells
+ end module
+ 
+ module mod2
+ contains
+   function get() result(array)
+     use mod1
+     real array(ncells)
+     array = 1.0
+   end function
+ end module
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149_1.f90	Wed May 16 11:42:47 2018
***************
*** 0 ****
--- 1,24 ----
+ ! Compiled with pr83149.f90
+ ! { dg-do run }
+ ! { dg-options "-fno-whole-file" }
+ ! { dg-compile-aux-modules "pr83149.f90" }
+ ! { dg-additional-sources pr83149.f90 }
+ !
+ ! Contributed by Neil Carlson  <neil.n.carlson@gmail.com>
+ !
+ subroutine sub(s)
+   use mod2
+   real :: s
+   s = sum(get())
+ end
+ 
+   use mod1
+   real :: s
+   ncells = 2
+   call sub (s)
+   if (int (s) .ne. ncells) stop 1
+   ncells = 10
+   call sub (s)
+   if (int (s) .ne. ncells) stop 2
+ end
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149_a.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149_a.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149_a.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149_a.f90	Wed May 16 11:42:47 2018
***************
*** 0 ****
--- 1,11 ----
+ ! Compiled with pr83149_b.f90
+ !
+ module mod
+   character(8) string
+ contains
+   function get_string() result(s)
+     character(len_trim(string)) s
+     s = string
+   end function
+ end module
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149_b.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149_b.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83149_b.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83149_b.f90	Wed May 16 11:42:47 2018
***************
*** 0 ****
--- 1,16 ----
+ ! Compiled with pr83149_a.f90
+ ! { dg-do run }
+ ! { dg-options "-fno-whole-file" }
+ ! { dg-compile-aux-modules "pr83149_a.f90" }
+ ! { dg-additional-sources pr83149_a.f90 }
+ !
+ ! Contributed by Neil Carlson  <neil.n.carlson@gmail.com>
+ !
+   use mod
+   string = 'fubar'
+   select case (get_string())
+     case ('fubar')
+     case default
+       stop 1
+   end select
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83874.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83874.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83874.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83874.f90	Thu Jan 18 01:04:36 2018
***************
*** 0 ****
--- 1,19 ----
+ ! { dg-do run }
+ ! PR fortran/83874
+ ! There was an ICE while initializing the character arrays
+ !
+ ! Contributed by Harald Anlauf <anlauf@gmx.de>
+ !
+ program charinit
+   implicit none
+   type t
+      character(len=1) :: name
+   end type t
+   type(t), parameter :: z(2)= [ t ('a'), t ('b') ]
+   character(len=1), parameter :: names1(*) = z% name
+   character(len=*), parameter :: names2(2) = z% name
+   character(len=*), parameter :: names3(*) = z% name
+   if (.not. (names1(1) == "a" .and. names1(2) == "b")) call abort ()
+   if (.not. (names2(1) == "a" .and. names2(2) == "b")) call abort ()
+   if (.not. (names3(1) == "a" .and. names3(2) == "b")) call abort ()
+ end program charinit
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83939.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83939.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr83939.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr83939.f90	Mon Mar 12 18:26:28 2018
***************
*** 0 ****
--- 1,12 ----
+ ! { dg-do compile }
+ elemental function f() result(s) ! { dg-error "shall not have an ALLOCATABLE or POINTER" }
+   allocatable s
+   allocate(s)
+   s = 3.5
+ end function
+ 
+ elemental function g() result(s) ! { dg-error "shall not have an ALLOCATABLE or POINTER" }
+   pointer s
+   allocate(s)
+   s = 3.5
+ end function
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr84734.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr84734.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr84734.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr84734.f90	Sat Mar 10 19:00:49 2018
***************
*** 0 ****
--- 1,4 ----
+ ! { dg-do compile }
+ ! PR fortran/84734
+    integer :: b(huge(1_8)+1_8) = 0 ! { dg-error "Arithmetic overflow" }
+    end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85138_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85138_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85138_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85138_1.f90	Sat Jun  9 18:35:58 2018
***************
*** 0 ****
--- 1,29 ----
+ ! { dg-do compile }
+ module fox_m_fsys_format
+ 
+   interface len
+      module procedure str_real_sp_len, str_real_sp_fmt_len
+   end interface
+ 
+ contains
+ 
+   pure function str_real_sp_fmt_len(x, fmt) result(n)
+     real, intent(in) :: x
+     character(len=*), intent(in) :: fmt
+     if (.not.checkFmt(fmt)) then
+     endif
+   end function str_real_sp_fmt_len
+   pure function str_real_sp_len(x) result(n)
+     real, intent(in) :: x
+     n = len(x, "")
+   end function str_real_sp_len
+   pure function str_real_dp_matrix(xa) result(s)
+     real, intent(in) :: xa
+     character(len=len(xa)) :: s
+   end function str_real_dp_matrix
+ 
+   pure function checkfmt(s) result(a)
+    logical a
+    character(len=*), intent(in) :: s
+   end function checkfmt
+ end module fox_m_fsys_format
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85138_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85138_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85138_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85138_2.f90	Sat Jun  9 18:35:58 2018
***************
*** 0 ****
--- 1,32 ----
+ ! { dg-do compile }
+ module fox_m_fsys_format
+   interface len
+     module procedure str_real_dp_len, str_real_dp_fmt_len
+   end interface
+ contains
+   pure function str_real_dp_fmt_len(x, fmt) result(n)
+     real, intent(in) :: x
+     character(len=*), intent(in) :: fmt
+     if (.not.checkFmt(fmt)) then
+     endif
+   end function str_real_dp_fmt_len
+   pure function str_real_dp_len(x) result(n)
+     real, intent(in) :: x
+   end function str_real_dp_len
+   pure function str_real_dp_array_len(xa) result(n)
+     real, dimension(:), intent(in) :: xa
+   end function str_real_dp_array_len
+   pure function str_real_dp_array_fmt_len(xa, fmt) result(n)
+     real, dimension(:), intent(in) :: xa
+     character(len=*), intent(in) :: fmt
+   end function str_real_dp_array_fmt_len
+   pure function str_real_dp_fmt(x, fmt) result(s)
+     real, intent(in) :: x
+     character(len=*), intent(in) :: fmt
+     character(len=len(x, fmt)) :: s
+   end function str_real_dp_fmt
+   pure function checkFmt(fmt) result(good)
+     character(len=*), intent(in) :: fmt
+     logical :: good
+   end function checkFmt
+ end module fox_m_fsys_format
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85520.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85520.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85520.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85520.f90	Wed Apr 25 00:12:58 2018
***************
*** 0 ****
--- 1,7 ----
+ ! { dg-do run }
+ ! PR fortran/85520
+ ! Original code from Gerhard Steinmetz <gscfq at t-online dot de>
+ program p
+    character(-huge(1)) :: c = ' '
+     if (len(c) /= 0) stop 1
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85521_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85521_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85521_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85521_1.f90	Fri May 11 18:34:14 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do compile }
+ ! PR fortran/85521
+ program p
+    character(3) :: c = 'abc'
+    character(3) :: z(1)
+    z = [ c(:-1) ]
+    print *, z
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85521_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85521_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85521_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85521_2.f90	Fri May 11 18:34:14 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do compile }
+ ! PR fortran/85521
+ program p
+    character(3) :: c = 'abc'
+    character(3) :: z(1)
+    z = [ c(:-2) ]
+    print *, z
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85542.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85542.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85542.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85542.f90	Sat May 12 17:17:19 2018
***************
*** 0 ****
--- 1,7 ----
+ ! { dg-do compile }
+ ! PR fortran/85542
+ function f(x)
+    character(*), intent(in) :: x
+    character((len((x)))) :: f
+    f = x
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85543.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85543.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85543.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85543.f90	Fri May 25 19:38:11 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do compile }
+ ! PR fortran/85543
+ program p
+    procedure(), pointer :: z
+ contains
+    real(z()) function f()  ! { dg-error "in initialization expression at" }
+    end
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85687.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85687.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85687.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85687.f90	Fri May 11 18:33:05 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do compile }
+ ! PR fortran/85687
+ ! Code original contributed by Gerhard Steinmetz gscfq at t-oline dot de
+ program p
+    type t
+    end type
+    print *, rank(t)  ! { dg-error "must be a data object" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85779_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85779_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85779_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85779_1.f90	Fri May 25 19:45:57 2018
***************
*** 0 ****
--- 1,6 ----
+ ! { dg-do compile }
+ ! PR fortran/85779
+ type(t) function f() ! { dg-error "is not accessible" }
+    type f            ! { dg-error "already has a basic type" }
+    end type          ! { dg-error "END FUNCTION statement" }
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85779_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85779_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85779_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85779_2.f90	Fri May 25 19:45:57 2018
***************
*** 0 ****
--- 1,7 ----
+ ! { dg-do compile }
+ ! PR fortran/85779
+ type(t) function f() result(z)   ! { dg-error "is not accessible" }
+    type z                        ! { dg-error "already has a basic type" }
+    end type                      ! { dg-error "END FUNCTION statement" }
+ end
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85779_3.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85779_3.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85779_3.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85779_3.f90	Fri May 25 19:45:57 2018
***************
*** 0 ****
--- 1,7 ----
+ ! { dg-do compile }
+ ! PR fortran/85779
+ class(t) function f()   ! { dg-error "must be dummy, allocatable or pointer" }
+    type f               ! { dg-error "already has a basic type" }
+    end type             ! { dg-error "END FUNCTION statement" }
+ end
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85780.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85780.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85780.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85780.f90	Fri May 25 19:54:51 2018
***************
*** 0 ****
--- 1,5 ----
+ ! { dg-do compile }
+ ! { dg-options "-std=legacy" }
+ ! PR fortran/85780
+ subroutine s(*) bind(c)
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85895.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85895.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85895.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85895.f90	Fri May 25 20:02:05 2018
***************
*** 0 ****
--- 1,17 ----
+ ! { dg-do compile }
+ ! { dg-options "-fcoarray=lib" }
+ ! PR fortran/85895
+ subroutine p
+    character(80) :: c(2)
+    sync memory (errmsg=c)        ! { dg-error "scalar CHARACTER variable" }
+ end subroutine p
+ 
+ subroutine q
+    character(80) :: c(2)
+    sync memory (errmsg=c(1:2))   ! { dg-error "scalar CHARACTER variable" }
+ end subroutine q
+ 
+ subroutine r
+    character(80) :: c(2)
+    sync memory (errmsg=c(1))
+ end subroutine r
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85996.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85996.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/pr85996.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/pr85996.f90	Sat Jun  9 18:35:58 2018
***************
*** 0 ****
--- 1,69 ----
+ ! { dg-do compile }
+ module strings
+ 
+    type string
+       integer :: len = 0, size = 0
+       character, pointer :: chars(:) => null()
+    end type string
+ 
+    interface length
+       module procedure len_s
+    end interface
+ 
+    interface char
+       module procedure s_to_c, s_to_slc  
+    end interface
+ 
+    interface uppercase
+       module procedure uppercase_c
+    end interface
+ 
+    interface replace
+       module procedure replace_ccs
+    end interface
+ 
+    contains
+ 
+       elemental function len_s(s)
+          type(string), intent(in) :: s
+          integer :: len_s
+       end function len_s
+ 
+       pure function s_to_c(s)
+          type(string),intent(in) :: s
+          character(length(s)) :: s_to_c
+       end function s_to_c
+ 
+       pure function s_to_slc(s,long)
+          type(string),intent(in) :: s
+          integer, intent(in) :: long
+          character(long) :: s_to_slc
+       end function s_to_slc
+ 
+       pure function lr_sc_s(s,start,ss) result(l)
+          type(string), intent(in) :: s
+          character(*), intent(in) :: ss
+          integer, intent(in)  :: start
+          integer :: l
+       end function lr_sc_s
+ 
+       pure function lr_ccc(s,tgt,ss,action) result(l)
+          character(*), intent(in) :: s,tgt,ss,action
+          integer :: l
+          select case(uppercase(action))
+          case default
+          end select
+       end function lr_ccc
+ 
+       function replace_ccs(s,tgt,ss) result(r)
+          character(*), intent(in)             :: s,tgt
+          type(string), intent(in)             :: ss
+          character(lr_ccc(s,tgt,char(ss),'first'))  :: r
+       end function replace_ccs
+ 
+       pure function uppercase_c(c)
+          character(*), intent(in) :: c
+          character(len(c)) :: uppercase_c
+       end function uppercase_c
+ 
+ end module strings
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/proc_ptr_50.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/proc_ptr_50.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/proc_ptr_50.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/proc_ptr_50.f90	Tue Jul  3 10:45:52 2018
***************
*** 0 ****
--- 1,68 ----
+ ! { dg-do compile }
+ !
+ ! Test the fix for PR86242, in which the procedure pointer in 'tester'
+ ! was being copied as if it were an allocatable class component.
+ !
+ ! Contributed by <cfd@mnet-mail.de>
+ !
+ module test
+ 
+    implicit none
+ 
+    private
+    public :: tester
+ 
+    type :: wrapper
+       integer(4) :: n
+    end type wrapper
+ 
+    type :: output
+       real(8) :: dummy
+    end type output
+ 
+    type :: tester
+       class(wrapper),  allocatable :: wrap
+       procedure(proc1), pointer :: ptr => null()
+    end type tester
+ 
+    abstract interface
+       function proc1(self) result(uc)
+          import :: tester, output
+          class(tester), intent(in) :: self
+          class(output), allocatable :: uc
+       end function proc1
+    end interface
+ 
+ end module test
+ 
+ ! Comment #2 from Janus Weil  <janus@gcc.gnu.org>
+ module test1
+ 
+    implicit none
+ 
+    type :: output
+    end type
+ 
+    type :: tester
+       integer,  allocatable :: wrap
+       procedure(proc1), pointer, nopass :: ptr
+    end type
+ 
+    interface                              ! Originally abstract
+       function proc1() result(uc)
+          import :: output
+          class(output), allocatable :: uc ! Works if a pointer
+       end function
+    end interface
+ 
+ ! PR82969 from Gerhard Steinmetz  <gscfq@t-online.de>
+    type t
+       real, allocatable :: x(:)
+       procedure(f), nopass, pointer :: g
+    end type
+ contains
+    function f() result(z)
+       class(t), allocatable :: z
+    end
+ 
+ end module test1
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/shape_9.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/shape_9.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/shape_9.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/shape_9.f90	Mon Feb 12 20:27:11 2018
***************
*** 0 ****
--- 1,16 ----
+ ! { dg-do  run }
+ ! { dg-require-effective-target lto }
+ ! { dg-options "-flto" }
+ ! Check that there are no warnings with LTO for a KIND argument.
+ !
+ program test
+    implicit none
+    real, allocatable :: x(:,:)
+ 
+    allocate(x(2,5))
+    if (any(shape(x) /= [ 2, 5 ])) call abort
+    if (any(shape(x,kind=1) /= [ 2, 5 ])) call abort
+    if (any(shape(x,kind=2) /= [ 2, 5 ])) call abort
+    if (any(shape(x,kind=4) /= [ 2, 5 ])) call abort
+    if (any(shape(x,kind=8) /= [ 2, 5 ])) call abort
+  end program test
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/simplify_cshift_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/simplify_cshift_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/simplify_cshift_1.f90	Sat Nov 21 16:25:23 2015
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/simplify_cshift_1.f90	Tue Jan  2 23:03:11 2018
*************** program foo
*** 23,34 ****
     v = cshift(c, 2)
     if (any(b /= v)) call abort
  
!    ! Special cases shift = 0, size(a), 1-size(a)
     b = cshift([1, 2, 3, 4, 5], 0)
     if (any(b /= a)) call abort
     b = cshift([1, 2, 3, 4, 5], size(a))
     if (any(b /= a)) call abort
!    b = cshift([1, 2, 3, 4, 5], 1-size(a))
     if (any(b /= a)) call abort
  
     ! simplification of array arg.
--- 23,34 ----
     v = cshift(c, 2)
     if (any(b /= v)) call abort
  
!    ! Special cases shift = 0, size(a), size(a)
     b = cshift([1, 2, 3, 4, 5], 0)
     if (any(b /= a)) call abort
     b = cshift([1, 2, 3, 4, 5], size(a))
     if (any(b /= a)) call abort
!    b = cshift([1, 2, 3, 4, 5], -size(a))
     if (any(b /= a)) call abort
  
     ! simplification of array arg.
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/statement_function_1.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/statement_function_1.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/statement_function_1.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/statement_function_1.f90	Fri Feb 23 19:41:27 2018
***************
*** 0 ****
--- 1,24 ----
+ ! { dg-do compile }
+ ! PR fortran/84276
+       subroutine stepns(hh, h, s, w)
+       real, intent(inout) :: h, hh, s
+       real, intent(out) :: w
+       real :: qofs
+       integer i
+       qofs(s) = s
+       w = qofs(hh + h)
+       i = 42
+       w = qofs(i)       ! { dg-error "Type mismatch in argument" }
+       end subroutine stepns
+ 
+       subroutine step(hh, h, s, w)
+       real, intent(inout) :: h, hh, s
+       real, intent(out) :: w
+       real :: qofs
+       integer i
+       qofs(s, i) = i * s
+       i = 42
+       w = qofs(hh, i)
+       w = qofs(i = i, s = hh) ! { dg-error "invalid in a statement function" }
+       end subroutine step
+ ! { dg-prune-output " Obsolescent feature" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/statement_function_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/statement_function_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/statement_function_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/statement_function_2.f90	Mon Feb 12 18:25:41 2018
***************
*** 0 ****
--- 1,26 ----
+ ! { dg-do compile }
+ ! PR fortran/54223
+ subroutine r(d)
+     implicit none
+     integer, optional :: d
+     integer :: h, q
+     q(d) = d + 1     ! statement function statement
+     h = q(d)
+ end subroutine r
+ 
+ subroutine s(x)
+     implicit none
+     integer, optional :: x
+     integer :: g, z
+     g(x) = x + 1     ! statement function statement
+     z = g()          ! { dg-error "Missing actual argument" }
+ end subroutine s
+ 
+ subroutine t(a)
+     implicit none
+     integer :: a
+     integer :: f, y
+     f(a) = a + 1     ! statement function statement
+     y = f()          ! { dg-error "Missing actual argument" }
+ end subroutine t
+ ! { dg-prune-output " Obsolescent feature" }
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/statement_function_3.f gcc-6.5.0/gcc/testsuite/gfortran.dg/statement_function_3.f
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/statement_function_3.f	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/statement_function_3.f	Mon Feb 12 18:26:44 2018
***************
*** 0 ****
--- 1,15 ----
+ ! { dg-do compile }
+ ! PR fortran/35299
+       subroutine phtod(e,n,i,h)
+       dimension e(n)
+       hstar(e,b)=b**.4*((1.25*fun(-e/40)+.18)) ! { dg-error "must be scalar" }
+       a = 1.
+       h = hstar(e(i-1), a)
+       end
+ 
+       function fun(a)
+          real a(*)
+          fun = 42
+       end
+ ! { dg-prune-output " Obsolescent feature" }
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/submodule_23.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/submodule_23.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/submodule_23.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/submodule_23.f90	Thu Oct 19 17:54:58 2017
***************
*** 0 ****
--- 1,29 ----
+ ! { dg-do compile }
+ !
+ ! Test the fix for PR79402, in which the module procedure 'fun1' picked
+ ! up a spurious symbol for the dummy 'n' in the specification expression
+ ! for the result 'y'.
+ !
+ ! Contributed by Chris Coutinho  <chrisbcoutinho@gmail.com>
+ !
+ module mod
+   interface myfun
+     module function fun1(n) result(y)
+       integer,  intent(in)    :: n
+       real, dimension(n)  :: y
+     end function fun1
+   end interface myfun
+ 
+ end module mod
+ 
+ submodule (mod) submod
+ contains
+   module procedure fun1
+     integer :: i
+     y = [(float (i), i = 1, n)]
+   end procedure fun1
+ end submodule
+ 
+   use mod
+   print *, fun1(10)
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/submodule_29.f08 gcc-6.5.0/gcc/testsuite/gfortran.dg/submodule_29.f08
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/submodule_29.f08	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/submodule_29.f08	Wed Nov  1 12:39:48 2017
***************
*** 0 ****
--- 1,56 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR80554 in which it was not recognised that the symbol 'i'
+ ! is host associated in the submodule 's' so that the new declaration in the
+ ! submodule was rejected.
+ !
+ ! Contributed by Tamas Bela Feher  <tamas.bela.feher@ipp.mpg.de>
+ !
+ module M
+   implicit none
+   integer :: i = 0
+   character (100) :: buffer
+   interface
+     module subroutine write_i()
+     end subroutine
+   end interface
+   interface
+     module subroutine write_i_2()
+     end subroutine
+   end interface
+ contains
+   subroutine foo
+     integer :: i
+   end
+ end module
+ 
+ submodule (M) S
+     integer :: i = 137
+   contains
+     module subroutine write_i()
+        write (buffer,*) i
+     end subroutine
+ end submodule
+ 
+ submodule (M:S) S2
+     integer :: i = 1037
+   contains
+     module subroutine write_i_2()
+        write (buffer,*) i
+     end subroutine
+ end submodule
+ 
+ program test_submod_variable
+   use M
+   implicit none
+   integer :: j
+   i = 42
+   call write_i
+   read (buffer, *) j
+   if (i .ne. 42) call abort
+   if (j .ne. 137) call abort
+   call write_i_2
+   read (buffer, *) j
+   if (i .ne. 42) call abort
+   if (j .ne. 1037) call abort
+ end program
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/submodule_31.f08 gcc-6.5.0/gcc/testsuite/gfortran.dg/submodule_31.f08
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/submodule_31.f08	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/submodule_31.f08	Thu May 17 15:31:42 2018
***************
*** 0 ****
--- 1,54 ----
+ ! { dg-do run }
+ !
+ ! Test the fix for PR82814 in which an ICE occurred for the submodule allocation.
+ !
+ ! Contributed by "Werner Blokbuster"  <werner.blokbuster@gmail.com>
+ !
+ module u
+ 
+     implicit none
+ 
+     interface unique
+         module function uniq_char(input) result(uniq)
+             character(*), intent(in) :: input(:)
+             character(size(input)), allocatable :: uniq(:)
+         end function uniq_char
+     end interface unique
+ 
+ contains
+ 
+     module function uniq2(input) result(uniq)
+         character(*), intent(in) :: input(:)
+         character(size(input)), allocatable :: uniq(:)
+             allocate(uniq(1))
+             uniq = 'A'
+     end function uniq2
+ 
+ end module u
+ 
+ 
+ submodule (u) z
+ 
+     implicit none
+ 
+ contains
+ 
+     module function uniq_char(input) result(uniq)
+         character(*), intent(in) :: input(:)
+         character(size(input)), allocatable :: uniq(:)
+             allocate(uniq(1)) ! This used to ICE
+             uniq = 'A'
+     end function uniq_char
+ 
+ end submodule z
+ 
+ 
+ program test_uniq
+     use u
+     implicit none
+     character(1), dimension(4) :: chr = ['1','2','1','2']
+ 
+     write(*,*) unique(chr)
+     write(*,*) uniq2(chr)
+ 
+ end program test_uniq
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/temporary_2.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/temporary_2.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/temporary_2.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/temporary_2.f90	Sun May 13 08:34:50 2018
***************
*** 0 ****
--- 1,39 ----
+ ! { dg-do compile }
+ !
+ ! Tests the fix for PR70864 in which compiler generated temporaries received
+ ! the attributes of a dummy argument. This is the original testcase.
+ ! The simplified version by Gerhard Steinmetz is gratefully acknowledged.
+ !
+ ! Contributed by Weiqun Zhang  <weiqun.zhang@gmail.com>
+ !
+ module boxarray_module
+   implicit none
+   type :: BoxArray
+      integer     :: i = 0
+    contains
+      procedure ::                  boxarray_assign
+      generic   :: assignment(=) => boxarray_assign
+   end type BoxArray
+ contains
+   subroutine boxarray_assign (dst, src)
+     class(BoxArray), intent(inout) :: dst
+     type (BoxArray), intent(in   ) :: src
+     dst%i =src%i
+   end subroutine boxarray_assign
+ end module boxarray_module
+ 
+ module multifab_module
+   use boxarray_module
+   implicit none
+   type, public   :: MultiFab
+      type(BoxArray) :: ba
+   end type MultiFab
+ contains
+   subroutine multifab_swap(mf1, mf2)
+     type(MultiFab), intent(inout) :: mf1, mf2
+     type(MultiFab) :: tmp
+     tmp = mf1
+     mf1 = mf2 ! Generated an ICE in trans-decl.c.
+     mf2 = tmp
+   end subroutine multifab_swap
+ end module multifab_module
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/temporary_3.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/temporary_3.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/temporary_3.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/temporary_3.f90	Sun May 13 08:34:50 2018
***************
*** 0 ****
--- 1,121 ----
+ ! { dg-do run }
+ !
+ ! Tests the fix for PR68846 in which compiler generated temporaries were
+ ! receiving the attributes of dummy arguments. This test is the original.
+ ! The simplified versions by Gerhard Steinmetz are gratefully acknowledged.
+ !
+ ! Contributed by Mirco Valentini  <mirco.valentini@polimi.it>
+ !
+ MODULE grid
+   IMPLICIT NONE
+   PRIVATE
+   REAL(KIND=8), DIMENSION(100,100), TARGET :: WORKSPACE
+   TYPE, PUBLIC :: grid_t
+     REAL(KIND=8), DIMENSION(:,:), POINTER :: P => NULL ()
+   END TYPE
+   PUBLIC :: INIT
+ CONTAINS
+   SUBROUTINE INIT (DAT)
+     IMPLICIT NONE
+     TYPE(grid_t), INTENT(INOUT) :: DAT
+     INTEGER :: I, J
+     DAT%P => WORKSPACE
+     DO I = 1, 100
+       DO J = 1, 100
+         DAT%P(I,J) = REAL ((I-1)*100+J-1)
+       END DO
+     ENDDO
+   END SUBROUTINE INIT
+ END MODULE grid
+ 
+ MODULE subgrid
+   USE :: grid, ONLY: grid_t
+   IMPLICIT NONE
+   PRIVATE
+   TYPE, PUBLIC :: subgrid_t
+     INTEGER, DIMENSION(4) :: range
+     CLASS(grid_t), POINTER    :: grd => NULL ()
+   CONTAINS
+     PROCEDURE, PASS :: INIT => LVALUE_INIT
+     PROCEDURE, PASS :: JMP => LVALUE_JMP
+   END TYPE
+ CONTAINS
+   SUBROUTINE LVALUE_INIT (HOBJ, P, D)
+     IMPLICIT NONE
+     CLASS(subgrid_t),      INTENT(INOUT) :: HOBJ
+     TYPE(grid_t), POINTER, INTENT(INOUT) :: P
+     INTEGER, DIMENSION(4), INTENT(IN)    :: D
+     HOBJ%range = D
+     HOBJ%grd => P
+   END SUBROUTINE LVALUE_INIT
+ 
+   FUNCTION LVALUE_JMP(HOBJ, I, J) RESULT(P)
+     IMPLICIT NONE
+     CLASS(subgrid_t), INTENT(INOUT) :: HOBJ
+     INTEGER, INTENT(IN) :: I, J
+     REAL(KIND=8), POINTER :: P
+     P => HOBJ%grd%P(HOBJ%range(1)+I-1, HOBJ%range(3)+J-1)
+   END FUNCTION LVALUE_JMP
+ END MODULE subgrid
+ 
+ MODULE geom
+   IMPLICIT NONE
+ CONTAINS
+   SUBROUTINE fillgeom_03( subgrid, value  )
+     USE :: subgrid, ONLY: subgrid_t
+     IMPLICIT NONE
+     TYPE(subgrid_T), intent(inout) :: subgrid
+     REAL(kind=8),    intent(in) :: value
+     INTEGER :: I, J
+     DO i = 1, 3
+       DO J = 1, 4
+         subgrid%jmp(i,j) = value ! Dummy argument '_F.DA0' with INTENT(IN)
+                                  ! in pointer association context or ICE
+                                  ! in trans_decl.c, depending on INTENT of
+                                  ! 'VALUE'
+       ENDDO
+     ENDDO
+   END SUBROUTINE fillgeom_03
+ END MODULE geom
+ 
+ PROGRAM test_lvalue
+   USE :: grid
+   USE :: subgrid
+   USE :: geom
+   IMPLICIT NONE
+   TYPE(grid_t), POINTER :: GRD => NULL()
+   TYPE(subgrid_t) :: STENCIL
+   REAL(KIND=8), POINTER :: real_tmp_ptr
+   REAL(KIND=8), DIMENSION(10,10), TARGET :: AA
+   REAL(KIND=8), DIMENSION(3,4) :: VAL
+   INTEGER :: I, J, chksum
+   integer, parameter :: r1 = 50
+   integer, parameter :: r2 = 52
+   integer, parameter :: r3 = 50
+   integer, parameter :: r4 = 53
+   DO I = 1, 3
+     DO J = 1, 4
+       VAL(I,J) = dble(I)*dble(J)
+     ENDDO
+   ENDDO
+ 
+   ALLOCATE (GRD)
+   CALL INIT (GRD)
+   chksum = sum([([((i-1)*100 + j -1, j=1,100)], i = 1,100)])
+   if (int(sum(grd%p)) .ne. chksum) stop 1
+ 
+   CALL STENCIL%INIT (GRD, [r1, r2, r3, r4])
+   if (.not.associated (stencil%grd, grd)) stop 2
+   if (int(sum(grd%p)) .ne. chksum) stop 3
+ 
+   CALL fillgeom_03(stencil, 42.0_8)
+   if (any (int (grd%p(r1:r2,r3:r4)) .ne. 42)) stop 4
+ 
+   chksum = chksum - sum([([((i - 1) * 100 + j -1, j=r3,r4)], i = r1,r2)]) &
+            + (r4 - r3 + 1) * (r2 - r1 +1) * 42
+   if (int(sum(grd%p)) .ne. chksum) stop 5
+ 
+   deallocate (grd)
+ END PROGRAM test_lvalue
+ 
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/transfer_simplify_11.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/transfer_simplify_11.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/transfer_simplify_11.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/transfer_simplify_11.f90	Wed Jan 10 18:44:12 2018
***************
*** 0 ****
--- 1,8 ----
+ ! { dg-do run }
+ ! PR Fortran/82841
+ !
+    integer, parameter :: N = 2
+    character(len=1) :: chr(N)
+    chr = transfer(repeat("x",ncopies=N),[character(len=1) ::], N)
+    if (chr(1) /= 'x' .and. chr(2) /= 'x') call abort
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_3.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_3.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_3.f90	Fri Jun  5 18:44:53 2015
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_3.f90	Sat Sep  2 19:31:44 2017
***************
*** 3,9 ****
  !
  ! PR fortran/55476
  !
! ! Contribued by  Janus Weil
  !
  subroutine test
    integer, pointer :: p
--- 3,9 ----
  !
  ! PR fortran/55476
  !
! ! Contributed by Janus Weil
  !
  subroutine test
    integer, pointer :: p
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_4.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_4.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_4.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/warn_target_lifetime_4.f90	Sat Sep  2 19:31:44 2017
***************
*** 0 ****
--- 1,28 ----
+ ! { dg-do compile }
+ ! { dg-options "-Wtarget-lifetime" }
+ !
+ ! PR fortran/81770: [5/6/7 Regression] Bogus warning: Pointer in pointer assignment might outlive the pointer target
+ !
+ ! Contributed by Janus Weil <janus@gcc.gnu.org>
+ 
+ module m
+ 
+    type t
+       integer, allocatable :: l
+    end type
+ 
+ contains
+ 
+    subroutine sub(c_in, list)
+       type(t), target, intent(in)  :: c_in
+       integer, pointer, intent(out) :: list
+ 
+       type(t), pointer :: container
+ 
+       container => c_in
+ 
+       list => container%l
+ 
+    end subroutine
+ 
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.dg/zero_sized_7.f90 gcc-6.5.0/gcc/testsuite/gfortran.dg/zero_sized_7.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.dg/zero_sized_7.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.dg/zero_sized_7.f90	Fri Oct  6 18:15:26 2017
***************
*** 0 ****
--- 1,18 ----
+ ! { dg-do compile }
+ ! PR 80118 - this used to ICE
+ ! Original test case by Marco Restelli
+ module m
+ implicit none
+ 
+   integer, parameter :: not_empty(1) = 0
+   integer, parameter :: empty1(0) = (/integer :: /)
+   integer, parameter :: empty2(0) = 0
+ 
+ contains
+ 
+  subroutine sub(v)
+   integer, allocatable, intent(out) :: v(:)
+    v = 2*empty2 ! internal compiler error
+  end subroutine sub
+ 
+ end module m
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gfortran.fortran-torture/compile/pr85878.f90 gcc-6.5.0/gcc/testsuite/gfortran.fortran-torture/compile/pr85878.f90
*** gcc-6.4.0/gcc/testsuite/gfortran.fortran-torture/compile/pr85878.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gfortran.fortran-torture/compile/pr85878.f90	Mon Jun 25 17:53:06 2018
***************
*** 0 ****
--- 1,8 ----
+ ! PR middle-end/85878
+ 
+ program pr85878
+   real :: a
+   complex :: c = (2.0, 3.0)
+   print *, c
+   print *, transfer (a, c)
+ end
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/alignment13.adb gcc-6.5.0/gcc/testsuite/gnat.dg/alignment13.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/alignment13.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/alignment13.adb	Thu Dec 14 17:07:28 2017
***************
*** 0 ****
--- 1,21 ----
+ -- { dg-do run }
+ -- { dg-options "-gnatws" }
+ 
+ procedure Alignment13 is
+ 
+   type Rec is record
+     I1 : aliased Short_Integer;
+     I2 : Integer;
+   end record;
+ 
+   for Rec use record
+     I1 at 0 range 0 .. 15;
+   end record;
+ 
+   R : Rec;
+ 
+ begin
+   if R.I2'Bit_Position /= 32 then
+     raise Program_Error;
+   end if;
+ end;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/array11.adb gcc-6.5.0/gcc/testsuite/gnat.dg/array11.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/array11.adb	Sun May 30 10:38:00 2010
--- gcc-6.5.0/gcc/testsuite/gnat.dg/array11.adb	Fri Feb 16 23:27:21 2018
***************
*** 1,15 ****
  -- { dg-do compile }
  
  procedure Array11 is
  
    type Rec is null record;
!   type Ptr is access all Rec;
  
!   type Arr1 is array (1..8) of aliased Rec; -- { dg-warning "padded" }
!   type Arr2 is array (Long_Integer) of aliased Rec; -- { dg-warning "padded" }
  
    A1 : Arr1;
!   A2 : Arr2; -- { dg-warning "Storage_Error" }
  
  begin
    null;
--- 1,17 ----
  -- { dg-do compile }
  
+ with System;
+ 
  procedure Array11 is
  
    type Rec is null record;
!   type Index_T is mod System.Memory_Size;
  
!   type Arr1 is array (1 .. 8) of aliased Rec; -- { dg-warning "padded" }
!   type Arr2 is array (Index_T) of aliased Rec; -- { dg-warning "padded" }
  
    A1 : Arr1;
!   A2 : Arr2;
  
  begin
    null;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/array29.adb gcc-6.5.0/gcc/testsuite/gnat.dg/array29.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/array29.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/array29.adb	Tue Sep  5 08:21:14 2017
***************
*** 0 ****
--- 1,26 ----
+ -- { dg-do compile }
+ -- { dg-options "-O" }
+ 
+ package body Array29 is
+ 
+   procedure Copy (Src : in Matrix; Dst : out Matrix) is
+   begin
+     for I in Src'Range (1) loop
+       for J in Src'Range (2) loop
+         Dst (I, J) := Src (I, J);
+       end loop;
+     end loop;
+   end;
+ 
+   procedure Proc is
+     N : constant := 2;
+     FM1 : constant Matrix (1 .. N, 1 .. N) := ((1.0, 2.0), (3.0, 4.0));
+     FM2 : constant Matrix (1 .. N, 1 .. N) := ((1.0, 2.0), (3.0, 4.0));
+     A : constant array (1 .. 2) of Matrix (1 .. N, 1 .. N)
+       := (Matrix (FM1), Matrix (FM2));
+     Final : Matrix (1 .. N, 1 .. N);
+   begin
+     Copy (Src => A (1), Dst => Final);
+   end;
+ 
+ end Array29;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/array29.ads gcc-6.5.0/gcc/testsuite/gnat.dg/array29.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/array29.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/array29.ads	Tue Sep  5 08:21:14 2017
***************
*** 0 ****
--- 1,7 ----
+ package Array29 is
+ 
+   type Matrix is array (Integer range <>, Integer range <>) of Long_Float;
+ 
+   procedure Proc;
+ 
+ end Array29;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/discr53.adb gcc-6.5.0/gcc/testsuite/gnat.dg/discr53.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/discr53.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/discr53.adb	Sat Jun  2 09:58:46 2018
***************
*** 0 ****
--- 1,19 ----
+ --  { dg-do compile }
+ 
+ package body Discr53 is
+ 
+    function F return Rec is
+       Data : Rec;
+    begin
+       return Data;
+    end;
+ 
+    type Ptr is access Rec;
+ 
+    procedure Proc is
+       Local : Ptr;
+    begin
+       Local := new Rec'(F);
+    end;
+ 
+ end Discr53;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/discr53.ads gcc-6.5.0/gcc/testsuite/gnat.dg/discr53.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/discr53.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/discr53.ads	Sat Jun  2 09:58:46 2018
***************
*** 0 ****
--- 1,16 ----
+ with Discr53_Pkg;
+ 
+ package Discr53 is
+ 
+    type Rec (D : Boolean := False) is record
+       case D is
+          when True  => S : String (1 .. Discr53_Pkg.Max);
+          when False => null;
+       end case;
+    end record;
+ 
+    function F return Rec;
+ 
+    procedure Proc;
+ 
+ end Discr53;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/discr53_pkg.ads gcc-6.5.0/gcc/testsuite/gnat.dg/discr53_pkg.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/discr53_pkg.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/discr53_pkg.ads	Sat Jun  2 09:58:46 2018
***************
*** 0 ****
--- 1,5 ----
+ package Discr53_Pkg is
+ 
+   function Max return Natural;
+ 
+ end Discr53_Pkg;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/disp1.adb gcc-6.5.0/gcc/testsuite/gnat.dg/disp1.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/disp1.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/disp1.adb	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,10 ----
+ -- { dg-do run }
+ 
+ with Disp1_Pkg; use Disp1_Pkg;
+ 
+ procedure Disp1 is
+    O   : DT_I1;
+    Ptr : access I1'Class;
+ begin
+    Ptr := new I1'Class'(I1'Class (O));
+ end;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/disp1_pkg.ads gcc-6.5.0/gcc/testsuite/gnat.dg/disp1_pkg.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/disp1_pkg.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/disp1_pkg.ads	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,6 ----
+ package Disp1_Pkg is
+ 
+    type I1 is interface;
+    type DT_I1 is new I1 with null record;
+ 
+ end Disp1_Pkg;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/disp2.adb gcc-6.5.0/gcc/testsuite/gnat.dg/disp2.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/disp2.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/disp2.adb	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,11 ----
+ --  { dg-do run }
+ 
+ with Disp2_Pkg; use Disp2_Pkg;
+ 
+ procedure Disp2 is
+    Obj : Object_Ptr := new Object;
+ begin
+    if Obj.Get_Ptr /= Obj.Impl_Of then
+       raise Program_Error;
+    end if;
+ end;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/disp2_pkg.adb gcc-6.5.0/gcc/testsuite/gnat.dg/disp2_pkg.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/disp2_pkg.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/disp2_pkg.adb	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,8 ----
+ package body Disp2_Pkg is
+ 
+   function Impl_Of (Self : access Object) return Object_Ptr is
+   begin
+     return Object_Ptr (Self);
+   end Impl_Of;
+ 
+ end Disp2_Pkg;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/disp2_pkg.ads gcc-6.5.0/gcc/testsuite/gnat.dg/disp2_pkg.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/disp2_pkg.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/disp2_pkg.ads	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,11 ----
+ package Disp2_Pkg is
+ 
+   type Object     is tagged null record;
+   type Object_Ptr is access all Object'CLASS;
+ 
+   function Impl_Of (Self : access Object) return Object_Ptr;
+   function Get_Ptr (Self : access Object) return Object_Ptr
+     renames Impl_Of;
+ 
+ end Disp2_Pkg;
+ 
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch1.adb gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch1.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch1.adb	Tue Oct 31 18:20:42 2006
--- gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch1.adb	Thu Jan  1 00:00:00 1970
***************
*** 1,9 ****
- -- { dg-do run }
- 
- with dispatch1_p; use dispatch1_p;
- procedure dispatch1 is
-    O   : DT_I1;
-    Ptr : access I1'Class;
- begin
-    Ptr := new I1'Class'(I1'Class (O));
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch1_p.ads gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch1_p.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch1_p.ads	Tue Oct 31 18:20:42 2006
--- gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch1_p.ads	Thu Jan  1 00:00:00 1970
***************
*** 1,4 ****
- package dispatch1_p is
-    type I1 is interface;
-    type DT_I1 is new I1 with null record;
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch2.adb gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch2.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch2.adb	Thu Aug 16 13:29:34 2007
--- gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch2.adb	Thu Jan  1 00:00:00 1970
***************
*** 1,10 ****
- --  { dg-do run }
- 
- with dispatch2_p; use dispatch2_p;
- procedure dispatch2 is
-    Obj : Object_Ptr := new Object;
- begin
-    if Obj.Get_Ptr /= Obj.Impl_Of then
-       raise Program_Error;
-    end if;
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch2_p.adb gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch2_p.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch2_p.adb	Thu Aug 16 13:29:34 2007
--- gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch2_p.adb	Thu Jan  1 00:00:00 1970
***************
*** 1,7 ****
- --
- package body dispatch2_p is
-   function Impl_Of (Self : access Object) return Object_Ptr is
-   begin
-     return Object_Ptr (Self);
-   end Impl_Of;
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch2_p.ads gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch2_p.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/dispatch2_p.ads	Thu Aug 16 13:29:34 2007
--- gcc-6.5.0/gcc/testsuite/gnat.dg/dispatch2_p.ads	Thu Jan  1 00:00:00 1970
***************
*** 1,8 ****
- package dispatch2_p is
-   type Object     is tagged null record;
-   type Object_Ptr is access all Object'CLASS;
- --
-   function Impl_Of (Self : access Object) return Object_Ptr;
-   function Get_Ptr (Self : access Object) return Object_Ptr
-     renames Impl_Of;
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/generic_disp.adb gcc-6.5.0/gcc/testsuite/gnat.dg/generic_disp.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/generic_disp.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/generic_disp.adb	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,10 ----
+ --  { dg-do run }
+ 
+ with Generic_Disp_Pkg; use Generic_Disp_Pkg;
+ 
+ procedure Generic_Disp is
+    I : aliased Integer := 0;
+    D : Iface'Class := Dispatching_Constructor (DT'Tag, I'access);
+ begin   
+    null;   
+ end Generic_Disp;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/generic_disp_pkg.adb gcc-6.5.0/gcc/testsuite/gnat.dg/generic_disp_pkg.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/generic_disp_pkg.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/generic_disp_pkg.adb	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,9 ----
+ package body Generic_Disp_Pkg is
+ 
+    function Constructor (I : not null access Integer) return DT is
+       R : DT; 
+    begin
+       return R;
+    end Constructor;
+ 
+ end Generic_Disp_Pkg;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/generic_disp_pkg.ads gcc-6.5.0/gcc/testsuite/gnat.dg/generic_disp_pkg.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/generic_disp_pkg.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/generic_disp_pkg.ads	Fri Feb 16 23:27:21 2018
***************
*** 0 ****
--- 1,14 ----
+ with Ada.Tags.Generic_Dispatching_Constructor;
+ 
+ package Generic_Disp_Pkg is
+    type Iface is interface;
+    function Constructor (I : not null access Integer) return Iface is abstract;
+    function Dispatching_Constructor
+       is new Ada.Tags.Generic_Dispatching_Constructor
+                (T           => Iface,
+                 Parameters  => Integer,
+                 Constructor => Constructor);
+    type DT is new Iface with null record; 
+    overriding
+    function Constructor (I : not null access Integer) return DT;
+ end Generic_Disp_Pkg;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/generic_dispatch.adb gcc-6.5.0/gcc/testsuite/gnat.dg/generic_dispatch.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/generic_dispatch.adb	Tue Oct 31 18:20:42 2006
--- gcc-6.5.0/gcc/testsuite/gnat.dg/generic_dispatch.adb	Thu Jan  1 00:00:00 1970
***************
*** 1,9 ****
- --  { dg-do run }
- 
- with generic_dispatch_p; use generic_dispatch_p;
- procedure generic_dispatch is
-    I : aliased Integer := 0;
-    D : Iface'Class := Dispatching_Constructor (DT'Tag, I'access);
- begin   
-    null;   
- end generic_dispatch;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/generic_dispatch_p.adb gcc-6.5.0/gcc/testsuite/gnat.dg/generic_dispatch_p.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/generic_dispatch_p.adb	Tue Oct 31 18:20:42 2006
--- gcc-6.5.0/gcc/testsuite/gnat.dg/generic_dispatch_p.adb	Thu Jan  1 00:00:00 1970
***************
*** 1,7 ****
- package body generic_dispatch_p is
-    function Constructor (I : not null access Integer) return DT is
-       R : DT; 
-   begin
-       return R;
-    end Constructor;
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/generic_dispatch_p.ads gcc-6.5.0/gcc/testsuite/gnat.dg/generic_dispatch_p.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/generic_dispatch_p.ads	Tue Oct 31 18:20:42 2006
--- gcc-6.5.0/gcc/testsuite/gnat.dg/generic_dispatch_p.ads	Thu Jan  1 00:00:00 1970
***************
*** 1,13 ****
- with Ada.Tags.Generic_Dispatching_Constructor;
- package generic_dispatch_p is
-    type Iface is interface;
-    function Constructor (I : not null access Integer) return Iface is abstract;
-    function Dispatching_Constructor
-       is new Ada.Tags.Generic_Dispatching_Constructor
-                (T           => Iface,
-                 Parameters  => Integer,
-                 Constructor => Constructor);
-    type DT is new Iface with null record; 
-    overriding
-    function Constructor (I : not null access Integer) return DT;
- end;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/null_pointer_deref1.adb gcc-6.5.0/gcc/testsuite/gnat.dg/null_pointer_deref1.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/null_pointer_deref1.adb	Mon Feb 14 12:32:11 2011
--- gcc-6.5.0/gcc/testsuite/gnat.dg/null_pointer_deref1.adb	Fri Feb 16 23:27:21 2018
*************** procedure Null_Pointer_Deref1 is
*** 17,21 ****
  begin
     Data.all := 1;
  exception
!    when Constraint_Error | Storage_Error => null;
  end;
--- 17,21 ----
  begin
     Data.all := 1;
  exception
!    when others => null;
  end;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/null_pointer_deref2.adb gcc-6.5.0/gcc/testsuite/gnat.dg/null_pointer_deref2.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/null_pointer_deref2.adb	Tue Oct 27 19:41:13 2009
--- gcc-6.5.0/gcc/testsuite/gnat.dg/null_pointer_deref2.adb	Fri Feb 16 23:27:21 2018
*************** procedure Null_Pointer_Deref2 is
*** 20,26 ****
     begin
        Data.all := 1;
     exception
!       when Constraint_Error | Storage_Error => null;
     end T;
  
  begin
--- 20,26 ----
     begin
        Data.all := 1;
     exception
!       when others => null;
     end T;
  
  begin
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow1.adb gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow1.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow1.adb	Wed Nov 28 10:51:19 2012
--- gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow1.adb	Fri Feb 16 23:27:21 2018
***************
*** 1,10 ****
  -- { dg-do compile }
  
  procedure Object_Overflow1 is
  
    procedure Proc (x : Boolean) is begin null; end;
  
!   type Arr is array(Long_Integer) of Boolean;
    Obj : Arr; -- { dg-warning "Storage_Error" }
  
  begin
--- 1,12 ----
  -- { dg-do compile }
  
+ with Interfaces.C; use Interfaces.C;
+ 
  procedure Object_Overflow1 is
  
    procedure Proc (x : Boolean) is begin null; end;
  
!   type Arr is array(ptrdiff_t) of Boolean;
    Obj : Arr; -- { dg-warning "Storage_Error" }
  
  begin
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow2.adb gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow2.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow2.adb	Wed Nov 28 10:51:19 2012
--- gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow2.adb	Fri Feb 16 23:27:21 2018
***************
*** 1,10 ****
  -- { dg-do compile }
  
  procedure Object_Overflow2 is
  
    procedure Proc (x : Boolean) is begin null; end;
  
!   type Arr is array(0 .. Long_Integer'Last) of Boolean;
    Obj : Arr; -- { dg-warning "Storage_Error" }
  
  begin
--- 1,12 ----
  -- { dg-do compile }
  
+ with Interfaces.C; use Interfaces.C;
+ 
  procedure Object_Overflow2 is
  
    procedure Proc (x : Boolean) is begin null; end;
  
!   type Arr is array(0 .. ptrdiff_t'Last) of Boolean;
    Obj : Arr; -- { dg-warning "Storage_Error" }
  
  begin
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow3.adb gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow3.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow3.adb	Wed Nov 28 10:51:19 2012
--- gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow3.adb	Fri Feb 16 23:27:21 2018
***************
*** 1,10 ****
  -- { dg-do compile }
  
  procedure Object_Overflow3 is
  
    procedure Proc (x : Boolean) is begin null; end;
  
!   type Arr is array(0 .. Long_Integer'Last) of Boolean;
  
    type Rec is record
      A : Arr;
--- 1,12 ----
  -- { dg-do compile }
  
+ with Interfaces.C; use Interfaces.C;
+ 
  procedure Object_Overflow3 is
  
    procedure Proc (x : Boolean) is begin null; end;
  
!   type Arr is array(0 .. ptrdiff_t'Last) of Boolean;
  
    type Rec is record
      A : Arr;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow4.adb gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow4.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow4.adb	Wed Nov 28 10:51:19 2012
--- gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow4.adb	Fri Feb 16 23:27:21 2018
***************
*** 1,14 ****
  -- { dg-do compile }
  
  procedure Object_Overflow4 is
  
    procedure Proc (x : Integer) is begin null; end;
  
!   type Index is new Long_Integer range 0 .. Long_Integer'Last;
  
!   type Arr is array(Index range <>) of Integer;
  
!   type Rec (Size: Index := 6) is record -- { dg-warning "Storage_Error" }
      A: Arr (0..Size);
    end record;
  
--- 1,16 ----
  -- { dg-do compile }
  
+ with Interfaces.C; use Interfaces.C;
+ 
  procedure Object_Overflow4 is
  
    procedure Proc (x : Integer) is begin null; end;
  
!   type Index_T is new ptrdiff_t range 0 .. ptrdiff_t'Last;
  
!   type Arr is array(Index_T range <>) of Integer;
  
!   type Rec (Size: Index_T := 6) is record -- { dg-warning "Storage_Error" }
      A: Arr (0..Size);
    end record;
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow5.adb gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow5.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/object_overflow5.adb	Tue Mar  3 17:56:07 2015
--- gcc-6.5.0/gcc/testsuite/gnat.dg/object_overflow5.adb	Fri Feb 16 23:27:21 2018
***************
*** 1,14 ****
  -- { dg-do compile }
  
  procedure Object_Overflow5 is
  
    procedure Proc (c : Character) is begin null; end;
  
!   type Index is new Long_Integer range 0 .. Long_Integer'Last;
  
!   type Arr is array(Index range <>) of Character;
  
!   type Rec (Size: Index := 6) is record -- { dg-warning "Storage_Error" }
      A: Arr (0..Size);
    end record;
  
--- 1,16 ----
  -- { dg-do compile }
  
+ with Interfaces.C; use Interfaces.C;
+ 
  procedure Object_Overflow5 is
  
    procedure Proc (c : Character) is begin null; end;
  
!   type Index_T is new ptrdiff_t range 0 .. ptrdiff_t'Last;
  
!   type Arr is array(Index_T range <>) of Character;
  
!   type Rec (Size: Index_T := 6) is record -- { dg-warning "Storage_Error" }
      A: Arr (0..Size);
    end record;
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/opt55.adb gcc-6.5.0/gcc/testsuite/gnat.dg/opt55.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/opt55.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/opt55.adb	Mon Oct  2 14:04:33 2017
***************
*** 0 ****
--- 1,20 ----
+ -- { dg-do compile }
+ -- { dg-options "-O" }
+ 
+ package body Opt55 is
+ 
+    function Cond (B : Boolean; If_True, If_False : Date) return Date is
+    begin
+       if B then
+          return If_True;
+       else
+          return If_False;
+       end if;
+    end;
+ 
+    function F (C : Rec2; B : Boolean) return Date is
+    begin
+       return Cond (B, C.D1, C.D2);
+    end;
+ 
+ end Opt55;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/opt55.ads gcc-6.5.0/gcc/testsuite/gnat.dg/opt55.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/opt55.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/opt55.ads	Mon Oct  2 14:04:33 2017
***************
*** 0 ****
--- 1,22 ----
+ package Opt55 is
+ 
+    type Date is record
+       D : Float;
+    end record;
+ 
+    type Rec1 (Kind : Boolean := False) is record
+       case Kind is
+          when True => N : Natural;
+          when False => null;
+       end case;
+    end record;
+ 
+    type Rec2 (D : Positive) is record
+       R  : Rec1;
+       D1 : Date;
+       D2 : Date;
+    end record;
+ 
+    function F (C : Rec2; B : Boolean) return Date;
+ 
+ end Opt55;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/opt69.adb gcc-6.5.0/gcc/testsuite/gnat.dg/opt69.adb
*** gcc-6.4.0/gcc/testsuite/gnat.dg/opt69.adb	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/opt69.adb	Fri Nov 10 08:24:40 2017
***************
*** 0 ****
--- 1,28 ----
+ -- { dg-do compile }
+ -- { dg-options "-O" }
+ 
+ with Ada.Text_IO;
+ 
+ procedure Opt69 is
+ 
+    procedure Inner
+      (A : String := (1 .. 15 => ASCII.NUL);
+       B : String := (1 .. 5 => ASCII.NUL);
+       C : String := (1 .. 5 => ASCII.NUL))
+    is
+       Aa : String (1 .. 15);
+       Bb : String (1 .. 5);
+       Cc : String (1 .. 5);
+    begin
+       Aa := A;
+       Bb := B;
+       Cc := C;
+ 
+       Ada.Text_IO.Put_Line (Aa);
+       Ada.Text_IO.Put_Line (Bb);
+       Ada.Text_IO.Put_Line (Cc);
+    end;
+ 
+ begin
+    Inner;
+ end;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/gnat.dg/specs/uc2.ads gcc-6.5.0/gcc/testsuite/gnat.dg/specs/uc2.ads
*** gcc-6.4.0/gcc/testsuite/gnat.dg/specs/uc2.ads	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/gcc/testsuite/gnat.dg/specs/uc2.ads	Tue Sep  5 09:16:52 2017
***************
*** 0 ****
--- 1,18 ----
+ -- { dg-do compile }
+ -- { dg-options "-O" }
+ 
+ with Ada.Unchecked_Conversion;
+ 
+ package UC2 is
+ 
+   subtype Word_Type is Integer range 0 .. 0;
+   type Arr is array (1 .. Word_Type'Size) of Boolean;
+   pragma Pack(Arr);
+ 
+   function Conv is
+      new Ada.Unchecked_Conversion (Source => Arr, Target => Word_Type);
+ 
+   A : Arr;
+   W : Word_Type := Conv(A);
+ 
+ end UC2;
diff -Nrcpad gcc-6.4.0/gcc/testsuite/lib/prune.exp gcc-6.5.0/gcc/testsuite/lib/prune.exp
*** gcc-6.4.0/gcc/testsuite/lib/prune.exp	Tue Mar 29 19:56:35 2016
--- gcc-6.5.0/gcc/testsuite/lib/prune.exp	Wed Feb 28 08:07:35 2018
*************** proc prune_gcc_output { text } {
*** 28,34 ****
  
      #send_user "Before:$text\n"
  
!     regsub -all "(^|\n)(\[^\n\]*: )?In ((static member |lambda )?function|member|method|(copy )?constructor|destructor|instantiation|substitution|program|subroutine|block-data)\[^\n\]*" $text "" text
      regsub -all "(^|\n)\[^\n\]*(: )?At (top level|global scope):\[^\n\]*" $text "" text
      regsub -all "(^|\n)\[^\n\]*:   (recursively )?required \[^\n\]*" $text "" text
      regsub -all "(^|\n)\[^\n\]*:   . skipping \[0-9\]* instantiation contexts \[^\n\]*" $text "" text
--- 28,34 ----
  
      #send_user "Before:$text\n"
  
!     regsub -all "(^|\n)(\[^\n\]*: \[iI\]|I)n ((static member |lambda )?function|member|method|(copy )?constructor|destructor|instantiation|substitution|program|subroutine|block-data)\[^\n\]*" $text "" text
      regsub -all "(^|\n)\[^\n\]*(: )?At (top level|global scope):\[^\n\]*" $text "" text
      regsub -all "(^|\n)\[^\n\]*:   (recursively )?required \[^\n\]*" $text "" text
      regsub -all "(^|\n)\[^\n\]*:   . skipping \[0-9\]* instantiation contexts \[^\n\]*" $text "" text
diff -Nrcpad gcc-6.4.0/gcc/testsuite/lib/target-supports.exp gcc-6.5.0/gcc/testsuite/lib/target-supports.exp
*** gcc-6.4.0/gcc/testsuite/lib/target-supports.exp	Tue Jun  6 11:50:48 2017
--- gcc-6.5.0/gcc/testsuite/lib/target-supports.exp	Tue Mar 27 13:07:22 2018
*************** proc check_effective_target_pie { } {
*** 1060,1067 ****
  	return 1;
      }
      if { [istarget *-*-solaris2.1\[1-9\]*] } {
! 	# Full PIE support was added in Solaris 11.x and Solaris 12, but gcc
! 	# errors out if missing, so check for that.
  	return [check_no_compiler_messages pie executable {
  	    int main (void) { return 0; }
  	} "-pie -fpie"]
--- 1060,1067 ----
  	return 1;
      }
      if { [istarget *-*-solaris2.1\[1-9\]*] } {
! 	# Full PIE support was added in Solaris 11.3, but gcc errors out
! 	# if missing, so check for that.
  	return [check_no_compiler_messages pie executable {
  	    int main (void) { return 0; }
  	} "-pie -fpie"]
*************** proc check_effective_target_vect_load_la
*** 5001,5007 ****
  	verbose "check_effective_target_vect_load_lanes: using cached result" 2
      } else {
  	set et_vect_load_lanes 0
! 	if { ([istarget arm*-*-*] && [check_effective_target_arm_neon_ok])
  	     || [istarget aarch64*-*-*] } {
  	    set et_vect_load_lanes 1
  	}
--- 5001,5008 ----
  	verbose "check_effective_target_vect_load_lanes: using cached result" 2
      } else {
  	set et_vect_load_lanes 0
! 	# We don't support load_lanes correctly on big-endian arm.
! 	if { ([istarget arm-*-*] && [check_effective_target_arm_neon_ok])
  	     || [istarget aarch64*-*-*] } {
  	    set et_vect_load_lanes 1
  	}
*************** proc check_prefer_avx128 { } {
*** 6301,6311 ****
--- 6302,6323 ----
  proc check_effective_target_avx512f { } {
      return [check_no_compiler_messages avx512f object {
  	typedef double __m512d __attribute__ ((__vector_size__ (64)));
+ 	typedef double __m128d __attribute__ ((__vector_size__ (16)));
  
  	__m512d _mm512_add (__m512d a)
  	{
  	  return __builtin_ia32_addpd512_mask (a, a, a, 1, 4);
  	}
+ 
+ 	__m128d _mm128_add (__m128d a)
+ 	{
+ 	  return __builtin_ia32_addsd_round (a, a, 8);
+ 	}
+ 
+ 	__m128d _mm128_getmant (__m128d a)
+ 	{
+ 	  return __builtin_ia32_getmantsd_round (a, a, 0, 8);
+ 	}
      } "-O2 -mavx512f" ]
  }
  
diff -Nrcpad gcc-6.4.0/gcc/testsuite/opt55.adb gcc-6.5.0/gcc/testsuite/opt55.adb
*** gcc-6.4.0/gcc/testsuite/opt55.adb	Wed May 25 20:44:21 2016
--- gcc-6.5.0/gcc/testsuite/opt55.adb	Thu Jan  1 00:00:00 1970
***************
*** 1,20 ****
- -- { dg-do compile }
- -- { dg-options "-O" }
- 
- package body Opt55 is
- 
-    function Cond (B : Boolean; If_True, If_False : Date) return Date is
-    begin
-       if B then
-          return If_True;
-       else
-          return If_False;
-       end if;
-    end;
- 
-    function F (C : Rec2; B : Boolean) return Date is
-    begin
-       return Cond (B, C.D1, C.D2);
-    end;
- 
- end Opt55;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/testsuite/opt55.ads gcc-6.5.0/gcc/testsuite/opt55.ads
*** gcc-6.4.0/gcc/testsuite/opt55.ads	Wed May 25 20:44:21 2016
--- gcc-6.5.0/gcc/testsuite/opt55.ads	Thu Jan  1 00:00:00 1970
***************
*** 1,22 ****
- package Opt55 is
- 
-    type Date is record
-       D : Float;
-    end record;
- 
-    type Rec1 (Kind : Boolean := False) is record
-       case Kind is
-          when True => N : Natural;
-          when False => null;
-       end case;
-    end record;
- 
-    type Rec2 (D : Positive) is record
-       R  : Rec1;
-       D1 : Date;
-       D2 : Date;
-    end record;
- 
-    function F (C : Rec2; B : Boolean) return Date;
- 
- end Opt55;
--- 0 ----
diff -Nrcpad gcc-6.4.0/gcc/toplev.c gcc-6.5.0/gcc/toplev.c
*** gcc-6.4.0/gcc/toplev.c	Thu Jun 22 11:16:39 2017
--- gcc-6.5.0/gcc/toplev.c	Fri Sep 15 09:19:36 2017
*************** toplev::main (int argc, char **argv)
*** 2100,2106 ****
       enough to default flags appropriately.  */
    decode_options (&global_options, &global_options_set,
  		  save_decoded_options, save_decoded_options_count,
! 		  UNKNOWN_LOCATION, global_dc);
  
    handle_common_deferred_options ();
  
--- 2100,2107 ----
       enough to default flags appropriately.  */
    decode_options (&global_options, &global_options_set,
  		  save_decoded_options, save_decoded_options_count,
! 		  UNKNOWN_LOCATION, global_dc,
! 		  targetm.target_option.override);
  
    handle_common_deferred_options ();
  
diff -Nrcpad gcc-6.4.0/gcc/tree-cfg.c gcc-6.5.0/gcc/tree-cfg.c
*** gcc-6.4.0/gcc/tree-cfg.c	Thu Sep  1 11:29:55 2016
--- gcc-6.5.0/gcc/tree-cfg.c	Mon Jun 25 16:57:59 2018
*************** move_stmt_op (tree *tp, int *walk_subtre
*** 6527,6533 ****
  		*tp = t = out->to;
  	    }
  
! 	  DECL_CONTEXT (t) = p->to_context;
  	}
        else if (p->remap_decls_p)
  	{
--- 6527,6541 ----
  		*tp = t = out->to;
  	    }
  
! 	  /* For FORCED_LABELs we can end up with references from other
! 	     functions if some SESE regions are outlined.  It is UB to
! 	     jump in between them, but they could be used just for printing
! 	     addresses etc.  In that case, DECL_CONTEXT on the label should
! 	     be the function containing the glabel stmt with that LABEL_DECL,
! 	     rather than whatever function a reference to the label was seen
! 	     last time.  */
! 	  if (!FORCED_LABEL (t) && !DECL_NONLOCAL (t))
! 	    DECL_CONTEXT (t) = p->to_context;
  	}
        else if (p->remap_decls_p)
  	{
*************** move_stmt_r (gimple_stmt_iterator *gsi_p
*** 6646,6651 ****
--- 6654,6674 ----
      case GIMPLE_OMP_RETURN:
      case GIMPLE_OMP_CONTINUE:
        break;
+ 
+     case GIMPLE_LABEL:
+       {
+ 	/* For FORCED_LABEL, move_stmt_op doesn't adjust DECL_CONTEXT,
+ 	   so that such labels can be referenced from other regions.
+ 	   Make sure to update it when seeing a GIMPLE_LABEL though,
+ 	   that is the owner of the label.  */
+ 	walk_gimple_op (stmt, move_stmt_op, wi);
+ 	*handled_ops_p = true;
+ 	tree label = gimple_label_label (as_a <glabel *> (stmt));
+ 	if (FORCED_LABEL (label) || DECL_NONLOCAL (label))
+ 	  DECL_CONTEXT (label) = p->to_context;
+       }
+       break;
+ 
      default:
        if (is_gimple_omp (stmt))
  	{
*************** pass_warn_function_return::execute (func
*** 8729,8735 ****
       without returning a value.  */
    else if (warn_return_type
  	   && !TREE_NO_WARNING (fun->decl)
- 	   && EDGE_COUNT (EXIT_BLOCK_PTR_FOR_FN (fun)->preds) > 0
  	   && !VOID_TYPE_P (TREE_TYPE (TREE_TYPE (fun->decl))))
      {
        FOR_EACH_EDGE (e, ei, EXIT_BLOCK_PTR_FOR_FN (fun)->preds)
--- 8752,8757 ----
*************** pass_warn_function_return::execute (func
*** 8743,8753 ****
  	      location = gimple_location (last);
  	      if (location == UNKNOWN_LOCATION)
  		location = fun->function_end_locus;
! 	      warning_at (location, OPT_Wreturn_type, "control reaches end of non-void function");
  	      TREE_NO_WARNING (fun->decl) = 1;
  	      break;
  	    }
  	}
      }
    return 0;
  }
--- 8765,8804 ----
  	      location = gimple_location (last);
  	      if (location == UNKNOWN_LOCATION)
  		location = fun->function_end_locus;
! 	      warning_at (location, OPT_Wreturn_type,
! 			  "control reaches end of non-void function");
  	      TREE_NO_WARNING (fun->decl) = 1;
  	      break;
  	    }
  	}
+       /* -fsanitize=return turns fallthrough from the end of non-void function
+ 	 into __builtin___ubsan_handle_missing_return () call.
+ 	 Recognize those too.  */
+       basic_block bb;
+       if (!TREE_NO_WARNING (fun->decl) && (flag_sanitize & SANITIZE_RETURN))
+ 	FOR_EACH_BB_FN (bb, fun)
+ 	  if (EDGE_COUNT (bb->succs) == 0)
+ 	    {
+ 	      gimple *last = last_stmt (bb);
+ 	      const enum built_in_function ubsan_missing_ret
+ 		= BUILT_IN_UBSAN_HANDLE_MISSING_RETURN;
+ 	      if (last && gimple_call_builtin_p (last, ubsan_missing_ret))
+ 		{
+ 		  gimple_stmt_iterator gsi = gsi_for_stmt (last);
+ 		  gsi_prev_nondebug (&gsi);
+ 		  gimple *prev = gsi_stmt (gsi);
+ 		  if (prev == NULL)
+ 		    location = UNKNOWN_LOCATION;
+ 		  else
+ 		    location = gimple_location (prev);
+ 		  if (LOCATION_LOCUS (location) == UNKNOWN_LOCATION)
+ 		    location = fun->function_end_locus;
+ 		  warning_at (location, OPT_Wreturn_type,
+ 			      "control reaches end of non-void function");
+ 		  TREE_NO_WARNING (fun->decl) = 1;
+ 		  break;
+ 		}
+ 	    }
      }
    return 0;
  }
diff -Nrcpad gcc-6.4.0/gcc/tree-chkp.c gcc-6.5.0/gcc/tree-chkp.c
*** gcc-6.4.0/gcc/tree-chkp.c	Wed Mar 22 10:47:52 2017
--- gcc-6.5.0/gcc/tree-chkp.c	Fri Sep 15 14:11:57 2017
*************** chkp_get_bounds_for_decl_addr (tree decl
*** 3144,3149 ****
--- 3144,3152 ----
        && !flag_chkp_incomplete_type)
        return chkp_get_zero_bounds ();
  
+   if (VOID_TYPE_P (TREE_TYPE (decl)))
+     return chkp_get_zero_bounds ();
+ 
    if (flag_chkp_use_static_bounds
        && TREE_CODE (decl) == VAR_DECL
        && (TREE_STATIC (decl)
diff -Nrcpad gcc-6.4.0/gcc/tree-dfa.c gcc-6.5.0/gcc/tree-dfa.c
*** gcc-6.4.0/gcc/tree-dfa.c	Thu Mar 10 12:19:45 2016
--- gcc-6.5.0/gcc/tree-dfa.c	Thu Jun 21 07:24:06 2018
*************** get_ref_base_and_extent (tree exp, HOST_
*** 433,439 ****
  		   referenced the last field of a struct or a union member
  		   then we have to adjust maxsize by the padding at the end
  		   of our field.  */
! 		if (seen_variable_array_ref && maxsize != -1)
  		  {
  		    tree stype = TREE_TYPE (TREE_OPERAND (exp, 0));
  		    tree next = DECL_CHAIN (field);
--- 433,439 ----
  		   referenced the last field of a struct or a union member
  		   then we have to adjust maxsize by the padding at the end
  		   of our field.  */
! 		if (seen_variable_array_ref)
  		  {
  		    tree stype = TREE_TYPE (TREE_OPERAND (exp, 0));
  		    tree next = DECL_CHAIN (field);
*************** get_ref_base_and_extent (tree exp, HOST_
*** 449,455 ****
  			    || ssize == NULL
  			    || TREE_CODE (ssize) != INTEGER_CST)
  			  maxsize = -1;
! 			else
  			  {
  			    offset_int tem = (wi::to_offset (ssize)
  					      - wi::to_offset (fsize));
--- 449,455 ----
  			    || ssize == NULL
  			    || TREE_CODE (ssize) != INTEGER_CST)
  			  maxsize = -1;
! 			else if (maxsize != -1)
  			  {
  			    offset_int tem = (wi::to_offset (ssize)
  					      - wi::to_offset (fsize));
*************** get_ref_base_and_extent (tree exp, HOST_
*** 458,463 ****
--- 458,468 ----
  			    maxsize += tem;
  			  }
  		      }
+ 		    /* An component ref with an adjacent field up in the
+ 		       structure hierarchy constrains the size of any variable
+ 		       array ref lower in the access hierarchy.  */
+ 		    else
+ 		      seen_variable_array_ref = false;
  		  }
  	      }
  	    else
*************** get_ref_base_and_extent (tree exp, HOST_
*** 612,619 ****
  
    if (DECL_P (exp))
      {
!       if (flag_unconstrained_commons
! 	  && TREE_CODE (exp) == VAR_DECL && DECL_COMMON (exp))
  	{
  	  tree sz_tree = TYPE_SIZE (TREE_TYPE (exp));
  	  /* If size is unknown, or we have read to the end, assume there
--- 617,625 ----
  
    if (DECL_P (exp))
      {
!       if (VAR_P (exp)
! 	  && ((flag_unconstrained_commons && DECL_COMMON (exp))
! 	      || (DECL_EXTERNAL (exp) && seen_variable_array_ref)))
  	{
  	  tree sz_tree = TYPE_SIZE (TREE_TYPE (exp));
  	  /* If size is unknown, or we have read to the end, assume there
diff -Nrcpad gcc-6.4.0/gcc/tree-inline.c gcc-6.5.0/gcc/tree-inline.c
*** gcc-6.4.0/gcc/tree-inline.c	Fri May 26 11:25:34 2017
--- gcc-6.5.0/gcc/tree-inline.c	Mon Oct 15 10:50:57 2018
*************** copy_tree_body_r (tree *tp, int *walk_su
*** 1165,1170 ****
--- 1165,1171 ----
  	      *tp = gimple_fold_indirect_ref (ptr);
  	      if (! *tp)
  	        {
+ 		  type = remap_type (type, id);
  		  if (TREE_CODE (ptr) == ADDR_EXPR)
  		    {
  		      *tp
*************** copy_bb (copy_body_data *id, basic_block
*** 1924,1931 ****
  		   && id->call_stmt
  		   && (decl = gimple_call_fndecl (stmt))
  		   && DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL
! 		   && DECL_FUNCTION_CODE (decl) == BUILT_IN_VA_ARG_PACK_LEN
! 		   && ! gimple_call_va_arg_pack_p (id->call_stmt))
  	    {
  	      /* __builtin_va_arg_pack_len () should be replaced by
  		 the number of anonymous arguments.  */
--- 1925,1931 ----
  		   && id->call_stmt
  		   && (decl = gimple_call_fndecl (stmt))
  		   && DECL_BUILT_IN_CLASS (decl) == BUILT_IN_NORMAL
! 		   && DECL_FUNCTION_CODE (decl) == BUILT_IN_VA_ARG_PACK_LEN)
  	    {
  	      /* __builtin_va_arg_pack_len () should be replaced by
  		 the number of anonymous arguments.  */
*************** copy_bb (copy_body_data *id, basic_block
*** 1943,1952 ****
  		if (POINTER_BOUNDS_P (gimple_call_arg (id->call_stmt, i)))
  		  nargs--;
  
! 	      count = build_int_cst (integer_type_node, nargs);
! 	      new_stmt = gimple_build_assign (gimple_call_lhs (stmt), count);
! 	      gsi_replace (&copy_gsi, new_stmt, false);
! 	      stmt = new_stmt;
  	    }
  	  else if (call_stmt
  		   && id->call_stmt
--- 1943,1974 ----
  		if (POINTER_BOUNDS_P (gimple_call_arg (id->call_stmt, i)))
  		  nargs--;
  
! 	      if (!gimple_call_lhs (stmt))
! 		{
! 		  /* Drop unused calls.  */
! 		  gsi_remove (&copy_gsi, false);
! 		  continue;
! 		}
! 	      else if (!gimple_call_va_arg_pack_p (id->call_stmt))
! 		{
! 		  count = build_int_cst (integer_type_node, nargs);
! 		  new_stmt = gimple_build_assign (gimple_call_lhs (stmt), count);
! 		  gsi_replace (&copy_gsi, new_stmt, false);
! 		  stmt = new_stmt;
! 		}
! 	      else if (nargs != 0)
! 		{
! 		  tree newlhs;
! 		  if (gimple_in_ssa_p (cfun))
! 		    newlhs = make_ssa_name (integer_type_node, NULL);
! 		  else
! 		    newlhs = create_tmp_reg (integer_type_node);
! 		  count = build_int_cst (integer_type_node, nargs);
! 		  new_stmt = gimple_build_assign (gimple_call_lhs (stmt),
! 						  PLUS_EXPR, newlhs, count);
! 		  gimple_call_set_lhs (stmt, newlhs);
! 		  gsi_insert_after (&copy_gsi, new_stmt, GSI_NEW_STMT);
! 		}
  	    }
  	  else if (call_stmt
  		   && id->call_stmt
diff -Nrcpad gcc-6.4.0/gcc/tree-object-size.c gcc-6.5.0/gcc/tree-object-size.c
*** gcc-6.4.0/gcc/tree-object-size.c	Thu Jul 21 07:49:15 2016
--- gcc-6.5.0/gcc/tree-object-size.c	Mon Jun 25 16:53:57 2018
*************** pass_through_call (const gcall *call)
*** 469,475 ****
        case BUILT_IN_MEMSET_CHK:
        case BUILT_IN_STRCPY_CHK:
        case BUILT_IN_STRNCPY_CHK:
-       case BUILT_IN_STPNCPY_CHK:
        case BUILT_IN_STRCAT_CHK:
        case BUILT_IN_STRNCAT_CHK:
        case BUILT_IN_ASSUME_ALIGNED:
--- 469,474 ----
diff -Nrcpad gcc-6.4.0/gcc/tree-predcom.c gcc-6.5.0/gcc/tree-predcom.c
*** gcc-6.4.0/gcc/tree-predcom.c	Fri Aug 12 17:06:44 2016
--- gcc-6.5.0/gcc/tree-predcom.c	Thu Feb  1 12:00:57 2018
*************** order_drefs (const void *a, const void *
*** 943,948 ****
--- 943,959 ----
    return (*da)->pos - (*db)->pos;
  }
  
+ /* Compares two drefs A and B by their position.  Callback for qsort.  */
+ 
+ static int
+ order_drefs_by_pos (const void *a, const void *b)
+ {
+   const dref *const da = (const dref *) a;
+   const dref *const db = (const dref *) b;
+ 
+   return (*da)->pos - (*db)->pos;
+ }
+ 
  /* Returns root of the CHAIN.  */
  
  static inline dref
*************** combine_chains (chain_p ch1, chain_p ch2
*** 2250,2256 ****
    bool swap = false;
    chain_p new_chain;
    unsigned i;
-   gimple *root_stmt;
    tree rslt_type = NULL_TREE;
  
    if (ch1 == ch2)
--- 2261,2266 ----
*************** combine_chains (chain_p ch1, chain_p ch2
*** 2292,2322 ****
        new_chain->refs.safe_push (nw);
      }
  
-   new_chain->has_max_use_after = false;
-   root_stmt = get_chain_root (new_chain)->stmt;
-   for (i = 1; new_chain->refs.iterate (i, &nw); i++)
-     {
-       if (nw->distance == new_chain->length
- 	  && !stmt_dominates_stmt_p (nw->stmt, root_stmt))
- 	{
- 	  new_chain->has_max_use_after = true;
- 	  break;
- 	}
-     }
- 
    ch1->combined = true;
    ch2->combined = true;
    return new_chain;
  }
  
! /* Try to combine the CHAINS.  */
  
  static void
! try_combine_chains (vec<chain_p> *chains)
  {
    unsigned i, j;
    chain_p ch1, ch2, cch;
    auto_vec<chain_p> worklist;
  
    FOR_EACH_VEC_ELT (*chains, i, ch1)
      if (chain_can_be_combined_p (ch1))
--- 2302,2356 ----
        new_chain->refs.safe_push (nw);
      }
  
    ch1->combined = true;
    ch2->combined = true;
    return new_chain;
  }
  
! /* Recursively update position information of all offspring chains to ROOT
!    chain's position information.  */
  
  static void
! update_pos_for_combined_chains (chain_p root)
! {
!   chain_p ch1 = root->ch1, ch2 = root->ch2;
!   dref ref, ref1, ref2;
!   for (unsigned j = 0; (root->refs.iterate (j, &ref)
! 			&& ch1->refs.iterate (j, &ref1)
! 			&& ch2->refs.iterate (j, &ref2)); ++j)
!     ref1->pos = ref2->pos = ref->pos;
! 
!   if (ch1->type == CT_COMBINATION)
!     update_pos_for_combined_chains (ch1);
!   if (ch2->type == CT_COMBINATION)
!     update_pos_for_combined_chains (ch2);
! }
! 
! /* Returns true if statement S1 dominates statement S2.  */
! 
! static bool
! pcom_stmt_dominates_stmt_p (gimple *s1, gimple *s2)
! {
!   basic_block bb1 = gimple_bb (s1), bb2 = gimple_bb (s2);
! 
!   if (!bb1 || s1 == s2)
!     return true;
! 
!   if (bb1 == bb2)
!     return gimple_uid (s1) < gimple_uid (s2);
! 
!   return dominated_by_p (CDI_DOMINATORS, bb2, bb1);
! }
! 
! /* Try to combine the CHAINS in LOOP.  */
! 
! static void
! try_combine_chains (struct loop *loop, vec<chain_p> *chains)
  {
    unsigned i, j;
    chain_p ch1, ch2, cch;
    auto_vec<chain_p> worklist;
+   bool combined_p = false;
  
    FOR_EACH_VEC_ELT (*chains, i, ch1)
      if (chain_can_be_combined_p (ch1))
*************** try_combine_chains (vec<chain_p> *chains
*** 2338,2343 ****
--- 2372,2449 ----
  	    {
  	      worklist.safe_push (cch);
  	      chains->safe_push (cch);
+ 	      combined_p = true;
+ 	      break;
+ 	    }
+ 	}
+     }
+   if (!combined_p)
+     return;
+ 
+   /* Setup UID for all statements in dominance order.  */
+   basic_block *bbs = get_loop_body (loop);
+   renumber_gimple_stmt_uids_in_blocks (bbs, loop->num_nodes);
+   free (bbs);
+ 
+   /* Re-association in combined chains may generate statements different to
+      order of references of the original chain.  We need to keep references
+      of combined chain in dominance order so that all uses will be inserted
+      after definitions.  Note:
+        A) This is necessary for all combined chains.
+        B) This is only necessary for ZERO distance references because other
+ 	  references inherit value from loop carried PHIs.
+ 
+      We first update position information for all combined chains.  */
+   dref ref;
+   for (i = 0; chains->iterate (i, &ch1); ++i)
+     {
+       if (ch1->type != CT_COMBINATION || ch1->combined)
+ 	continue;
+ 
+       for (j = 0; ch1->refs.iterate (j, &ref); ++j)
+ 	ref->pos = gimple_uid (ref->stmt);
+ 
+       update_pos_for_combined_chains (ch1);
+     }
+   /* Then sort references according to newly updated position information.  */
+   for (i = 0; chains->iterate (i, &ch1); ++i)
+     {
+       if (ch1->type != CT_COMBINATION && !ch1->combined)
+ 	continue;
+ 
+       /* Find the first reference with non-ZERO distance.  */
+       if (ch1->length == 0)
+ 	j = ch1->refs.length();
+       else
+ 	{
+ 	  for (j = 0; ch1->refs.iterate (j, &ref); ++j)
+ 	    if (ref->distance != 0)
+ 	      break;
+ 	}
+ 
+       /* Sort all ZERO distance references by position.  */
+       qsort (&ch1->refs[0], j, sizeof (ch1->refs[0]), order_drefs_by_pos);
+ 
+       if (ch1->combined)
+ 	continue;
+ 
+       /* For ZERO length chain, has_max_use_after must be true since root
+ 	 combined stmt must dominates others.  */
+       if (ch1->length == 0)
+ 	{
+ 	  ch1->has_max_use_after = true;
+ 	  continue;
+ 	}
+       /* Check if there is use at max distance after root for combined chains
+ 	 and set flag accordingly.  */
+       ch1->has_max_use_after = false;
+       gimple *root_stmt = get_chain_root (ch1)->stmt;
+       for (j = 1; ch1->refs.iterate (j, &ref); ++j)
+ 	{
+ 	  if (ref->distance == ch1->length
+ 	      && !pcom_stmt_dominates_stmt_p (ref->stmt, root_stmt))
+ 	    {
+ 	      ch1->has_max_use_after = true;
  	      break;
  	    }
  	}
*************** tree_predictive_commoning_loop (struct l
*** 2490,2496 ****
    prepare_initializers (loop, chains);
  
    /* Try to combine the chains that are always worked with together.  */
!   try_combine_chains (&chains);
  
    if (dump_file && (dump_flags & TDF_DETAILS))
      {
--- 2596,2602 ----
    prepare_initializers (loop, chains);
  
    /* Try to combine the chains that are always worked with together.  */
!   try_combine_chains (loop, &chains);
  
    if (dump_file && (dump_flags & TDF_DETAILS))
      {
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-alias.c gcc-6.5.0/gcc/tree-ssa-alias.c
*** gcc-6.4.0/gcc/tree-ssa-alias.c	Tue Feb 16 15:00:45 2016
--- gcc-6.5.0/gcc/tree-ssa-alias.c	Thu Jun 21 07:24:06 2018
*************** stmt_kills_ref_p (gimple *stmt, ao_ref *
*** 2235,2240 ****
--- 2235,2241 ----
        if (ref->ref)
  	{
  	  tree base = ref->ref;
+ 	  tree innermost_dropped_array_ref = NULL_TREE;
  	  if (handled_component_p (base))
  	    {
  	      tree saved_lhs0 = NULL_TREE;
*************** stmt_kills_ref_p (gimple *stmt, ao_ref *
*** 2254,2259 ****
--- 2255,2265 ----
  		  TREE_OPERAND (base, 0) = saved_base0;
  		  if (res)
  		    break;
+ 		  /* Remember if we drop an array-ref that we need to
+ 		     double-check not being at struct end.  */ 
+ 		  if (TREE_CODE (base) == ARRAY_REF
+ 		      || TREE_CODE (base) == ARRAY_RANGE_REF)
+ 		    innermost_dropped_array_ref = base;
  		  /* Otherwise drop handled components of the access.  */
  		  base = saved_base0;
  		}
*************** stmt_kills_ref_p (gimple *stmt, ao_ref *
*** 2262,2276 ****
  		TREE_OPERAND (lhs, 0) = saved_lhs0;
  	    }
  	  /* Finally check if the lhs has the same address and size as the
! 	     base candidate of the access.  */
! 	  if (lhs == base
! 	      || (((TYPE_SIZE (TREE_TYPE (lhs))
! 		    == TYPE_SIZE (TREE_TYPE (base)))
! 		   || (TYPE_SIZE (TREE_TYPE (lhs))
! 		       && TYPE_SIZE (TREE_TYPE (base))
! 		       && operand_equal_p (TYPE_SIZE (TREE_TYPE (lhs)),
! 					   TYPE_SIZE (TREE_TYPE (base)), 0)))
! 		  && operand_equal_p (lhs, base, OEP_ADDRESS_OF)))
  	    return true;
  	}
  
--- 2268,2289 ----
  		TREE_OPERAND (lhs, 0) = saved_lhs0;
  	    }
  	  /* Finally check if the lhs has the same address and size as the
! 	     base candidate of the access.  Watch out if we have dropped
! 	     an array-ref that was at struct end, this means ref->ref may
! 	     be outside of the TYPE_SIZE of its base.  */
! 	  if ((! innermost_dropped_array_ref
! 	       || ! array_at_struct_end_p (innermost_dropped_array_ref))
! 	      && (lhs == base
! 		  || (((TYPE_SIZE (TREE_TYPE (lhs))
! 			== TYPE_SIZE (TREE_TYPE (base)))
! 		       || (TYPE_SIZE (TREE_TYPE (lhs))
! 			   && TYPE_SIZE (TREE_TYPE (base))
! 			   && operand_equal_p (TYPE_SIZE (TREE_TYPE (lhs)),
! 					       TYPE_SIZE (TREE_TYPE (base)),
! 					       0)))
! 		      && operand_equal_p (lhs, base,
! 					  OEP_ADDRESS_OF
! 					  | OEP_MATCH_SIDE_EFFECTS))))
  	    return true;
  	}
  
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-math-opts.c gcc-6.5.0/gcc/tree-ssa-math-opts.c
*** gcc-6.4.0/gcc/tree-ssa-math-opts.c	Wed Dec 14 09:58:31 2016
--- gcc-6.5.0/gcc/tree-ssa-math-opts.c	Mon Jun 25 17:04:14 2018
*************** is_widening_mult_p (gimple *stmt,
*** 3030,3037 ****
  {
    tree type = TREE_TYPE (gimple_assign_lhs (stmt));
  
!   if (TREE_CODE (type) != INTEGER_TYPE
!       && TREE_CODE (type) != FIXED_POINT_TYPE)
      return false;
  
    if (!is_widening_mult_rhs_p (type, gimple_assign_rhs1 (stmt), type1_out,
--- 3030,3041 ----
  {
    tree type = TREE_TYPE (gimple_assign_lhs (stmt));
  
!   if (TREE_CODE (type) == INTEGER_TYPE)
!     {
!       if (TYPE_OVERFLOW_TRAPS (type))
! 	return false;
!     }
!   else if (TREE_CODE (type) != FIXED_POINT_TYPE)
      return false;
  
    if (!is_widening_mult_rhs_p (type, gimple_assign_rhs1 (stmt), type1_out,
*************** convert_mult_to_fma (gimple *mul_stmt, t
*** 3399,3405 ****
    /* We don't want to do bitfield reduction ops.  */
    if (INTEGRAL_TYPE_P (type)
        && (TYPE_PRECISION (type)
! 	  != GET_MODE_PRECISION (TYPE_MODE (type))))
      return false;
  
    /* If the target doesn't support it, don't generate it.  We assume that
--- 3403,3410 ----
    /* We don't want to do bitfield reduction ops.  */
    if (INTEGRAL_TYPE_P (type)
        && (TYPE_PRECISION (type)
! 	  != GET_MODE_PRECISION (TYPE_MODE (type))
! 	  || TYPE_OVERFLOW_TRAPS (type)))
      return false;
  
    /* If the target doesn't support it, don't generate it.  We assume that
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-phiopt.c gcc-6.5.0/gcc/tree-ssa-phiopt.c
*** gcc-6.4.0/gcc/tree-ssa-phiopt.c	Wed Nov 23 14:31:16 2016
--- gcc-6.5.0/gcc/tree-ssa-phiopt.c	Mon Jun 25 17:03:26 2018
*************** factor_out_conditional_conversion (edge
*** 523,530 ****
  
    /* Create the conversion stmt and insert it.  */
    if (convert_code == VIEW_CONVERT_EXPR)
!     temp = fold_build1 (VIEW_CONVERT_EXPR, TREE_TYPE (result), temp);
!   new_stmt = gimple_build_assign (result,  convert_code, temp);
    gsi = gsi_after_labels (gimple_bb (phi));
    gsi_insert_before (&gsi, new_stmt, GSI_SAME_STMT);
  
--- 523,534 ----
  
    /* Create the conversion stmt and insert it.  */
    if (convert_code == VIEW_CONVERT_EXPR)
!     {
!       temp = fold_build1 (VIEW_CONVERT_EXPR, TREE_TYPE (result), temp);
!       new_stmt = gimple_build_assign (result, temp);
!     }
!   else
!     new_stmt = gimple_build_assign (result, convert_code, temp);
    gsi = gsi_after_labels (gimple_bb (phi));
    gsi_insert_before (&gsi, new_stmt, GSI_SAME_STMT);
  
*************** cond_store_replacement (basic_block midd
*** 1761,1769 ****
    gsi_remove (&gsi, true);
    release_defs (assign);
  
    /* 2) Insert a load from the memory of the store to the temporary
          on the edge which did not contain the store.  */
-   lhs = unshare_expr (lhs);
    name = make_temp_ssa_name (TREE_TYPE (lhs), NULL, "cstore");
    new_stmt = gimple_build_assign (name, lhs);
    gimple_set_location (new_stmt, locus);
--- 1765,1788 ----
    gsi_remove (&gsi, true);
    release_defs (assign);
  
+   /* Make both store and load use alias-set zero as we have to
+      deal with the case of the store being a conditional change
+      of the dynamic type.  */
+   lhs = unshare_expr (lhs);
+   tree *basep = &lhs;
+   while (handled_component_p (*basep))
+     basep = &TREE_OPERAND (*basep, 0);
+   if (TREE_CODE (*basep) == MEM_REF
+       || TREE_CODE (*basep) == TARGET_MEM_REF)
+     TREE_OPERAND (*basep, 1)
+       = fold_convert (ptr_type_node, TREE_OPERAND (*basep, 1));
+   else
+     *basep = build2 (MEM_REF, TREE_TYPE (*basep),
+ 		     build_fold_addr_expr (*basep),
+ 		     build_zero_cst (ptr_type_node));
+ 
    /* 2) Insert a load from the memory of the store to the temporary
          on the edge which did not contain the store.  */
    name = make_temp_ssa_name (TREE_TYPE (lhs), NULL, "cstore");
    new_stmt = gimple_build_assign (name, lhs);
    gimple_set_location (new_stmt, locus);
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-reassoc.c gcc-6.5.0/gcc/tree-ssa-reassoc.c
*** gcc-6.4.0/gcc/tree-ssa-reassoc.c	Wed Feb 15 07:21:42 2017
--- gcc-6.5.0/gcc/tree-ssa-reassoc.c	Thu Jul 27 09:32:33 2017
*************** find_insert_point (gimple *stmt, tree rh
*** 3710,3720 ****
  
  /* Recursively rewrite our linearized statements so that the operators
     match those in OPS[OPINDEX], putting the computation in rank
!    order.  Return new lhs.  */
  
  static tree
  rewrite_expr_tree (gimple *stmt, unsigned int opindex,
! 		   vec<operand_entry *> ops, bool changed)
  {
    tree rhs1 = gimple_assign_rhs1 (stmt);
    tree rhs2 = gimple_assign_rhs2 (stmt);
--- 3710,3724 ----
  
  /* Recursively rewrite our linearized statements so that the operators
     match those in OPS[OPINDEX], putting the computation in rank
!    order.  Return new lhs.
!    CHANGED is true if we shouldn't reuse the lhs SSA_NAME both in
!    the current stmt and during recursive invocations.
!    NEXT_CHANGED is true if we shouldn't reuse the lhs SSA_NAME in
!    recursive invocations.  */
  
  static tree
  rewrite_expr_tree (gimple *stmt, unsigned int opindex,
! 		   vec<operand_entry *> ops, bool changed, bool next_changed)
  {
    tree rhs1 = gimple_assign_rhs1 (stmt);
    tree rhs2 = gimple_assign_rhs2 (stmt);
*************** rewrite_expr_tree (gimple *stmt, unsigne
*** 3794,3800 ****
       be the non-leaf side.  */
    tree new_rhs1
      = rewrite_expr_tree (SSA_NAME_DEF_STMT (rhs1), opindex + 1, ops,
! 			 changed || oe->op != rhs2);
  
    if (oe->op != rhs2 || new_rhs1 != rhs1)
      {
--- 3798,3805 ----
       be the non-leaf side.  */
    tree new_rhs1
      = rewrite_expr_tree (SSA_NAME_DEF_STMT (rhs1), opindex + 1, ops,
! 			 changed || oe->op != rhs2 || next_changed,
! 			 false);
  
    if (oe->op != rhs2 || new_rhs1 != rhs1)
      {
*************** reassociate_bb (basic_block bb)
*** 5115,5120 ****
--- 5120,5126 ----
  	      gimple_set_visited (stmt, true);
  	      linearize_expr_tree (&ops, stmt, true, true);
  	      ops.qsort (sort_by_operand_rank);
+ 	      int orig_len = ops.length ();
  	      optimize_ops_list (rhs_code, &ops);
  	      if (undistribute_ops_list (rhs_code, &ops,
  					 loop_containing_stmt (stmt)))
*************** reassociate_bb (basic_block bb)
*** 5179,5185 ****
                          swap_ops_for_binary_stmt (ops, len - 3, stmt);
  
  		      new_lhs = rewrite_expr_tree (stmt, 0, ops,
! 						   powi_result != NULL);
                      }
  
  		  /* If we combined some repeated factors into a 
--- 5185,5192 ----
                          swap_ops_for_binary_stmt (ops, len - 3, stmt);
  
  		      new_lhs = rewrite_expr_tree (stmt, 0, ops,
! 						   powi_result != NULL,
! 						   len != orig_len);
                      }
  
  		  /* If we combined some repeated factors into a 
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-sccvn.c gcc-6.5.0/gcc/tree-ssa-sccvn.c
*** gcc-6.4.0/gcc/tree-ssa-sccvn.c	Thu Jun 22 07:30:03 2017
--- gcc-6.5.0/gcc/tree-ssa-sccvn.c	Mon Jun 25 17:45:48 2018
*************** vn_reference_lookup_3 (ao_ref *ref, tree
*** 1814,1821 ****
  	  int len;
  
  	  len = native_encode_expr (gimple_assign_rhs1 (def_stmt),
! 				    buffer, sizeof (buffer));
! 	  if (len > 0)
  	    {
  	      tree type = vr->type;
  	      /* Make sure to interpret in a type that has a range
--- 1814,1822 ----
  	  int len;
  
  	  len = native_encode_expr (gimple_assign_rhs1 (def_stmt),
! 				    buffer, sizeof (buffer),
! 				    (offset - offset2) / BITS_PER_UNIT);
! 	  if (len > 0 && len * BITS_PER_UNIT >= ref->size)
  	    {
  	      tree type = vr->type;
  	      /* Make sure to interpret in a type that has a range
*************** vn_reference_lookup_3 (ao_ref *ref, tree
*** 1824,1833 ****
  		  && ref->size != TYPE_PRECISION (vr->type))
  		type = build_nonstandard_integer_type (ref->size,
  						       TYPE_UNSIGNED (type));
! 	      tree val = native_interpret_expr (type,
! 						buffer
! 						+ ((offset - offset2)
! 						   / BITS_PER_UNIT),
  						ref->size / BITS_PER_UNIT);
  	      /* If we chop off bits because the types precision doesn't
  		 match the memory access size this is ok when optimizing
--- 1825,1831 ----
  		  && ref->size != TYPE_PRECISION (vr->type))
  		type = build_nonstandard_integer_type (ref->size,
  						       TYPE_UNSIGNED (type));
! 	      tree val = native_interpret_expr (type, buffer,
  						ref->size / BITS_PER_UNIT);
  	      /* If we chop off bits because the types precision doesn't
  		 match the memory access size this is ok when optimizing
*************** vn_reference_lookup_3 (ao_ref *ref, tree
*** 2169,2175 ****
        memset (&op, 0, sizeof (op));
        op.type = vr->type;
        op.opcode = MEM_REF;
!       op.op0 = build_int_cst (ptr_type_node, at - rhs_offset);
        op.off = at - lhs_offset + rhs_offset;
        vr->operands[0] = op;
        op.type = TREE_TYPE (rhs);
--- 2167,2173 ----
        memset (&op, 0, sizeof (op));
        op.type = vr->type;
        op.opcode = MEM_REF;
!       op.op0 = build_int_cst (ptr_type_node, at - lhs_offset + rhs_offset);
        op.off = at - lhs_offset + rhs_offset;
        vr->operands[0] = op;
        op.type = TREE_TYPE (rhs);
*************** vn_phi_eq (const_vn_phi_t const vp1, con
*** 2841,2856 ****
  	      return false;
  
  	    /* Verify the controlling stmt is the same.  */
! 	    gimple *last1 = last_stmt (idom1);
! 	    gimple *last2 = last_stmt (idom2);
! 	    if (gimple_code (last1) != GIMPLE_COND
! 		|| gimple_code (last2) != GIMPLE_COND)
  	      return false;
  	    bool inverted_p;
! 	    if (! cond_stmts_equal_p (as_a <gcond *> (last1),
! 				      vp1->cclhs, vp1->ccrhs,
! 				      as_a <gcond *> (last2),
! 				      vp2->cclhs, vp2->ccrhs,
  				      &inverted_p))
  	      return false;
  
--- 2839,2851 ----
  	      return false;
  
  	    /* Verify the controlling stmt is the same.  */
! 	    gcond *last1 = safe_dyn_cast <gcond *> (last_stmt (idom1));
! 	    gcond *last2 = safe_dyn_cast <gcond *> (last_stmt (idom2));
! 	    if (! last1 || ! last2)
  	      return false;
  	    bool inverted_p;
! 	    if (! cond_stmts_equal_p (last1, vp1->cclhs, vp1->ccrhs,
! 				      last2, vp2->cclhs, vp2->ccrhs,
  				      &inverted_p))
  	      return false;
  
*************** vn_phi_lookup (gimple *phi)
*** 2935,2941 ****
    vp1.ccrhs = NULL_TREE;
    basic_block idom1 = get_immediate_dominator (CDI_DOMINATORS, vp1.block);
    if (EDGE_COUNT (idom1->succs) == 2)
!     if (gcond *last1 = dyn_cast <gcond *> (last_stmt (idom1)))
        {
  	vp1.cclhs = vn_valueize (gimple_cond_lhs (last1));
  	vp1.ccrhs = vn_valueize (gimple_cond_rhs (last1));
--- 2930,2936 ----
    vp1.ccrhs = NULL_TREE;
    basic_block idom1 = get_immediate_dominator (CDI_DOMINATORS, vp1.block);
    if (EDGE_COUNT (idom1->succs) == 2)
!     if (gcond *last1 = safe_dyn_cast <gcond *> (last_stmt (idom1)))
        {
  	vp1.cclhs = vn_valueize (gimple_cond_lhs (last1));
  	vp1.ccrhs = vn_valueize (gimple_cond_rhs (last1));
*************** vn_phi_insert (gimple *phi, tree result)
*** 2981,2987 ****
    vp1->ccrhs = NULL_TREE;
    basic_block idom1 = get_immediate_dominator (CDI_DOMINATORS, vp1->block);
    if (EDGE_COUNT (idom1->succs) == 2)
!     if (gcond *last1 = dyn_cast <gcond *> (last_stmt (idom1)))
        {
  	vp1->cclhs = vn_valueize (gimple_cond_lhs (last1));
  	vp1->ccrhs = vn_valueize (gimple_cond_rhs (last1));
--- 2976,2982 ----
    vp1->ccrhs = NULL_TREE;
    basic_block idom1 = get_immediate_dominator (CDI_DOMINATORS, vp1->block);
    if (EDGE_COUNT (idom1->succs) == 2)
!     if (gcond *last1 = safe_dyn_cast <gcond *> (last_stmt (idom1)))
        {
  	vp1->cclhs = vn_valueize (gimple_cond_lhs (last1));
  	vp1->ccrhs = vn_valueize (gimple_cond_rhs (last1));
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-structalias.c gcc-6.5.0/gcc/tree-ssa-structalias.c
*** gcc-6.4.0/gcc/tree-ssa-structalias.c	Thu Jun 22 11:46:45 2017
--- gcc-6.5.0/gcc/tree-ssa-structalias.c	Wed Jul 26 13:59:54 2017
*************** alias_get_name (tree decl)
*** 2833,2839 ****
  {
    const char *res = NULL;
    char *temp;
-   int num_printed = 0;
  
    if (!dump_file)
      return "NULL";
--- 2833,2838 ----
*************** alias_get_name (tree decl)
*** 2842,2855 ****
      {
        res = get_name (decl);
        if (res)
! 	num_printed = asprintf (&temp, "%s_%u", res, SSA_NAME_VERSION (decl));
        else
! 	num_printed = asprintf (&temp, "_%u", SSA_NAME_VERSION (decl));
!       if (num_printed > 0)
! 	{
! 	  res = ggc_strdup (temp);
! 	  free (temp);
! 	}
      }
    else if (DECL_P (decl))
      {
--- 2841,2851 ----
      {
        res = get_name (decl);
        if (res)
! 	temp = xasprintf ("%s_%u", res, SSA_NAME_VERSION (decl));
        else
! 	temp = xasprintf ("_%u", SSA_NAME_VERSION (decl));
!       res = ggc_strdup (temp);
!       free (temp);
      }
    else if (DECL_P (decl))
      {
*************** alias_get_name (tree decl)
*** 2860,2871 ****
  	  res = get_name (decl);
  	  if (!res)
  	    {
! 	      num_printed = asprintf (&temp, "D.%u", DECL_UID (decl));
! 	      if (num_printed > 0)
! 		{
! 		  res = ggc_strdup (temp);
! 		  free (temp);
! 		}
  	    }
  	}
      }
--- 2856,2864 ----
  	  res = get_name (decl);
  	  if (!res)
  	    {
! 	      temp = xasprintf ("D.%u", DECL_UID (decl));
! 	      res = ggc_strdup (temp);
! 	      free (temp);
  	    }
  	}
      }
diff -Nrcpad gcc-6.4.0/gcc/tree-ssa-tail-merge.c gcc-6.5.0/gcc/tree-ssa-tail-merge.c
*** gcc-6.4.0/gcc/tree-ssa-tail-merge.c	Mon Oct 17 13:17:53 2016
--- gcc-6.5.0/gcc/tree-ssa-tail-merge.c	Mon Sep  3 10:14:52 2018
*************** stmt_local_def (gimple *stmt)
*** 298,304 ****
    if (gimple_vdef (stmt) != NULL_TREE
        || gimple_has_side_effects (stmt)
        || gimple_could_trap_p_1 (stmt, false, false)
!       || gimple_vuse (stmt) != NULL_TREE)
      return false;
  
    def_p = SINGLE_SSA_DEF_OPERAND (stmt, SSA_OP_DEF);
--- 298,312 ----
    if (gimple_vdef (stmt) != NULL_TREE
        || gimple_has_side_effects (stmt)
        || gimple_could_trap_p_1 (stmt, false, false)
!       || gimple_vuse (stmt) != NULL_TREE
!       /* Copied from tree-ssa-ifcombine.c:bb_no_side_effects_p():
! 	 const calls don't match any of the above, yet they could
! 	 still have some side-effects - they could contain
! 	 gimple_could_trap_p statements, like floating point
! 	 exceptions or integer division by zero.  See PR70586.
! 	 FIXME: perhaps gimple_has_side_effects or gimple_could_trap_p
! 	 should handle this.  */
!       || is_gimple_call (stmt))
      return false;
  
    def_p = SINGLE_SSA_DEF_OPERAND (stmt, SSA_OP_DEF);
*************** static void
*** 808,813 ****
--- 816,824 ----
  same_succ_flush_bb (basic_block bb)
  {
    same_succ *same = BB_SAME_SUCC (bb);
+   if (! same)
+     return;
+ 
    BB_SAME_SUCC (bb) = NULL;
    if (bitmap_single_bit_set_p (same->bbs))
      same_succ_htab->remove_elt_with_hash (same, same->hashval);
*************** find_clusters_1 (same_succ *same_succ)
*** 1433,1439 ****
        /* TODO: handle blocks with phi-nodes.  We'll have to find corresponding
  	 phi-nodes in bb1 and bb2, with the same alternatives for the same
  	 preds.  */
!       if (bb_has_non_vop_phi (bb1))
  	continue;
  
        nr_comparisons = 0;
--- 1444,1450 ----
        /* TODO: handle blocks with phi-nodes.  We'll have to find corresponding
  	 phi-nodes in bb1 and bb2, with the same alternatives for the same
  	 preds.  */
!       if (bb_has_non_vop_phi (bb1) || bb_has_abnormal_pred (bb1))
  	continue;
  
        nr_comparisons = 0;
*************** find_clusters_1 (same_succ *same_succ)
*** 1441,1447 ****
  	{
  	  bb2 = BASIC_BLOCK_FOR_FN (cfun, j);
  
! 	  if (bb_has_non_vop_phi (bb2))
  	    continue;
  
  	  if (BB_CLUSTER (bb1) != NULL && BB_CLUSTER (bb1) == BB_CLUSTER (bb2))
--- 1452,1458 ----
  	{
  	  bb2 = BASIC_BLOCK_FOR_FN (cfun, j);
  
! 	  if (bb_has_non_vop_phi (bb2) || bb_has_abnormal_pred (bb2))
  	    continue;
  
  	  if (BB_CLUSTER (bb1) != NULL && BB_CLUSTER (bb1) == BB_CLUSTER (bb2))
diff -Nrcpad gcc-6.4.0/gcc/tree-tailcall.c gcc-6.5.0/gcc/tree-tailcall.c
*** gcc-6.4.0/gcc/tree-tailcall.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/tree-tailcall.c	Mon Jun 25 17:28:32 2018
*************** find_tail_calls (basic_block bb, struct
*** 467,473 ****
      {
        tree arg;
  
!       for (param = DECL_ARGUMENTS (func), idx = 0;
  	   param && idx < gimple_call_num_args (call);
  	   param = DECL_CHAIN (param), idx ++)
  	{
--- 467,473 ----
      {
        tree arg;
  
!       for (param = DECL_ARGUMENTS (current_function_decl), idx = 0;
  	   param && idx < gimple_call_num_args (call);
  	   param = DECL_CHAIN (param), idx ++)
  	{
diff -Nrcpad gcc-6.4.0/gcc/tree-vect-loop-manip.c gcc-6.5.0/gcc/tree-vect-loop-manip.c
*** gcc-6.4.0/gcc/tree-vect-loop-manip.c	Wed Mar  9 16:41:19 2016
--- gcc-6.5.0/gcc/tree-vect-loop-manip.c	Wed Jun 20 11:09:28 2018
*************** slpeel_tree_peel_loop_to_edge (struct lo
*** 1231,1236 ****
--- 1231,1238 ----
  	    gimple *stmt;
  	    use_operand_p use_p;
  
+ 	    SSA_NAME_OCCURS_IN_ABNORMAL_PHI (new_vop)
+ 	      = SSA_NAME_OCCURS_IN_ABNORMAL_PHI (vop);
  	    add_phi_arg (new_phi, vop, exit_e, UNKNOWN_LOCATION);
  	    gimple_phi_set_result (new_phi, new_vop);
  	    FOR_EACH_IMM_USE_STMT (stmt, imm_iter, vop)
diff -Nrcpad gcc-6.4.0/gcc/tree-vect-patterns.c gcc-6.5.0/gcc/tree-vect-patterns.c
*** gcc-6.4.0/gcc/tree-vect-patterns.c	Thu Sep  1 11:46:57 2016
--- gcc-6.5.0/gcc/tree-vect-patterns.c	Wed Jun 20 11:09:28 2018
*************** vect_recog_bool_pattern (vec<gimple *> *
*** 3363,3369 ****
    rhs_code = gimple_assign_rhs_code (last_stmt);
    if (CONVERT_EXPR_CODE_P (rhs_code))
      {
!       if (TREE_CODE (TREE_TYPE (lhs)) != INTEGER_TYPE
  	  || TYPE_PRECISION (TREE_TYPE (lhs)) == 1)
  	return NULL;
        vectype = get_vectype_for_scalar_type (TREE_TYPE (lhs));
--- 3363,3369 ----
    rhs_code = gimple_assign_rhs_code (last_stmt);
    if (CONVERT_EXPR_CODE_P (rhs_code))
      {
!       if (! INTEGRAL_TYPE_P (TREE_TYPE (lhs))
  	  || TYPE_PRECISION (TREE_TYPE (lhs)) == 1)
  	return NULL;
        vectype = get_vectype_for_scalar_type (TREE_TYPE (lhs));
diff -Nrcpad gcc-6.4.0/gcc/tree-vect-slp.c gcc-6.5.0/gcc/tree-vect-slp.c
*** gcc-6.4.0/gcc/tree-vect-slp.c	Mon Jun  6 18:47:33 2016
--- gcc-6.5.0/gcc/tree-vect-slp.c	Thu Jun 21 11:18:50 2018
*************** vect_get_slp_defs (vec<tree> ops, slp_tr
*** 3288,3353 ****
      }
  }
  
- 
- /* Create NCOPIES permutation statements using the mask MASK_BYTES (by
-    building a vector of type MASK_TYPE from it) and two input vectors placed in
-    DR_CHAIN at FIRST_VEC_INDX and SECOND_VEC_INDX for the first copy and
-    shifting by STRIDE elements of DR_CHAIN for every copy.
-    (STRIDE is the number of vectorized stmts for NODE divided by the number of
-    copies).
-    VECT_STMTS_COUNTER specifies the index in the vectorized stmts of NODE, where
-    the created stmts must be inserted.  */
- 
- static inline void
- vect_create_mask_and_perm (gimple *stmt,
-                            tree mask, int first_vec_indx, int second_vec_indx,
-                            gimple_stmt_iterator *gsi, slp_tree node,
-                            tree vectype, vec<tree> dr_chain,
-                            int ncopies, int vect_stmts_counter)
- {
-   tree perm_dest;
-   gimple *perm_stmt = NULL;
-   int i, stride_in, stride_out;
-   tree first_vec, second_vec, data_ref;
- 
-   stride_out = SLP_TREE_NUMBER_OF_VEC_STMTS (node) / ncopies;
-   stride_in = dr_chain.length () / ncopies;
- 
-   /* Initialize the vect stmts of NODE to properly insert the generated
-      stmts later.  */
-   for (i = SLP_TREE_VEC_STMTS (node).length ();
-        i < (int) SLP_TREE_NUMBER_OF_VEC_STMTS (node); i++)
-     SLP_TREE_VEC_STMTS (node).quick_push (NULL);
- 
-   perm_dest = vect_create_destination_var (gimple_assign_lhs (stmt), vectype);
-   for (i = 0; i < ncopies; i++)
-     {
-       first_vec = dr_chain[first_vec_indx];
-       second_vec = dr_chain[second_vec_indx];
- 
-       /* Generate the permute statement if necessary.  */
-       if (mask)
- 	{
- 	  perm_stmt = gimple_build_assign (perm_dest, VEC_PERM_EXPR,
- 					   first_vec, second_vec, mask);
- 	  data_ref = make_ssa_name (perm_dest, perm_stmt);
- 	  gimple_set_lhs (perm_stmt, data_ref);
- 	  vect_finish_stmt_generation (stmt, perm_stmt, gsi);
- 	}
-       else
- 	/* If mask was NULL_TREE generate the requested identity transform.  */
- 	perm_stmt = SSA_NAME_DEF_STMT (first_vec);
- 
-       /* Store the vector statement in NODE.  */
-       SLP_TREE_VEC_STMTS (node)[stride_out * i + vect_stmts_counter]
- 	= perm_stmt;
- 
-       first_vec_indx += stride_in;
-       second_vec_indx += stride_in;
-     }
- }
- 
- 
  /* Generate vector permute statements from a list of loads in DR_CHAIN.
     If ANALYZE_ONLY is TRUE, only check that it is possible to create valid
     permute statements for the SLP node NODE of the SLP instance
--- 3288,3293 ----
*************** vect_transform_slp_perm_load (slp_tree n
*** 3364,3370 ****
    int nunits, vec_index = 0;
    tree vectype = STMT_VINFO_VECTYPE (stmt_info);
    int group_size = SLP_INSTANCE_GROUP_SIZE (slp_node_instance);
!   int unroll_factor, mask_element, ncopies;
    unsigned char *mask;
    machine_mode mode;
  
--- 3304,3310 ----
    int nunits, vec_index = 0;
    tree vectype = STMT_VINFO_VECTYPE (stmt_info);
    int group_size = SLP_INSTANCE_GROUP_SIZE (slp_node_instance);
!   int mask_element;
    unsigned char *mask;
    machine_mode mode;
  
*************** vect_transform_slp_perm_load (slp_tree n
*** 3382,3392 ****
    mask_type = get_vectype_for_scalar_type (mask_element_type);
    nunits = TYPE_VECTOR_SUBPARTS (vectype);
    mask = XALLOCAVEC (unsigned char, nunits);
-   unroll_factor = SLP_INSTANCE_UNROLLING_FACTOR (slp_node_instance);
  
!   /* Number of copies is determined by the final vectorization factor
!      relatively to SLP_NODE_INSTANCE unrolling factor.  */
!   ncopies = vf / SLP_INSTANCE_UNROLLING_FACTOR (slp_node_instance);
  
    /* Generate permutation masks for every NODE. Number of masks for each NODE
       is equal to GROUP_SIZE.
--- 3322,3334 ----
    mask_type = get_vectype_for_scalar_type (mask_element_type);
    nunits = TYPE_VECTOR_SUBPARTS (vectype);
    mask = XALLOCAVEC (unsigned char, nunits);
  
!   /* Initialize the vect stmts of NODE to properly insert the generated
!      stmts later.  */
!   if (! analyze_only)
!     for (unsigned i = SLP_TREE_VEC_STMTS (node).length ();
! 	 i < SLP_TREE_NUMBER_OF_VEC_STMTS (node); i++)
!       SLP_TREE_VEC_STMTS (node).quick_push (NULL);
  
    /* Generate permutation masks for every NODE. Number of masks for each NODE
       is equal to GROUP_SIZE.
*************** vect_transform_slp_perm_load (slp_tree n
*** 3412,3418 ****
    int second_vec_index = -1;
    bool noop_p = true;
  
!   for (int j = 0; j < unroll_factor; j++)
      {
        for (int k = 0; k < group_size; k++)
  	{
--- 3354,3360 ----
    int second_vec_index = -1;
    bool noop_p = true;
  
!   for (int j = 0; j < vf; j++)
      {
        for (int k = 0; k < group_size; k++)
  	{
*************** vect_transform_slp_perm_load (slp_tree n
*** 3483,3492 ****
  
  		  if (second_vec_index == -1)
  		    second_vec_index = first_vec_index;
! 		  vect_create_mask_and_perm (stmt, mask_vec, first_vec_index,
! 					     second_vec_index,
! 					     gsi, node, vectype, dr_chain,
! 					     ncopies, vect_stmts_counter++);
  		}
  
  	      index = 0;
--- 3425,3454 ----
  
  		  if (second_vec_index == -1)
  		    second_vec_index = first_vec_index;
! 
! 		  /* Generate the permute statement if necessary.  */
! 		  tree first_vec = dr_chain[first_vec_index];
! 		  tree second_vec = dr_chain[second_vec_index];
! 		  gimple *perm_stmt;
! 		  if (! noop_p)
! 		    {
! 		      tree perm_dest
! 			= vect_create_destination_var (gimple_assign_lhs (stmt),
! 						       vectype);
! 		      perm_dest = make_ssa_name (perm_dest);
! 		      perm_stmt = gimple_build_assign (perm_dest,
! 						       VEC_PERM_EXPR,
! 						       first_vec, second_vec,
! 						       mask_vec);
! 		      vect_finish_stmt_generation (stmt, perm_stmt, gsi);
! 		    }
! 		  else
! 		    /* If mask was NULL_TREE generate the requested
! 		       identity transform.  */
! 		    perm_stmt = SSA_NAME_DEF_STMT (first_vec);
! 
! 		  /* Store the vector statement in NODE.  */
! 		  SLP_TREE_VEC_STMTS (node)[vect_stmts_counter++] = perm_stmt;
  		}
  
  	      index = 0;
diff -Nrcpad gcc-6.4.0/gcc/tree-vect-stmts.c gcc-6.5.0/gcc/tree-vect-stmts.c
*** gcc-6.4.0/gcc/tree-vect-stmts.c	Mon Oct 24 20:21:06 2016
--- gcc-6.5.0/gcc/tree-vect-stmts.c	Thu Jun 21 11:18:50 2018
*************** vectorizable_call (gimple *gs, gimple_st
*** 2320,2326 ****
        if (cfn != CFN_LAST)
  	fndecl = targetm.vectorize.builtin_vectorized_function
  	  (cfn, vectype_out, vectype_in);
!       else
  	fndecl = targetm.vectorize.builtin_md_vectorized_function
  	  (callee, vectype_out, vectype_in);
      }
--- 2320,2326 ----
        if (cfn != CFN_LAST)
  	fndecl = targetm.vectorize.builtin_vectorized_function
  	  (cfn, vectype_out, vectype_in);
!       else if (callee)
  	fndecl = targetm.vectorize.builtin_md_vectorized_function
  	  (callee, vectype_out, vectype_in);
      }
*************** vectorizable_operation (gimple *stmt, gi
*** 5078,5092 ****
        /* Handle uses.  */
        if (j == 0)
  	{
! 	  if (op_type == binary_op || op_type == ternary_op)
  	    vect_get_vec_defs (op0, op1, stmt, &vec_oprnds0, &vec_oprnds1,
  			       slp_node, -1);
  	  else
  	    vect_get_vec_defs (op0, NULL_TREE, stmt, &vec_oprnds0, NULL,
  			       slp_node, -1);
- 	  if (op_type == ternary_op)
- 	    vect_get_vec_defs (op2, NULL_TREE, stmt, &vec_oprnds2, NULL,
- 			       slp_node, -1);
  	}
        else
  	{
--- 5078,5111 ----
        /* Handle uses.  */
        if (j == 0)
  	{
! 	  if (op_type == binary_op)
  	    vect_get_vec_defs (op0, op1, stmt, &vec_oprnds0, &vec_oprnds1,
  			       slp_node, -1);
+ 	  else if (op_type == ternary_op)
+ 	    {
+ 	      if (slp_node)
+ 		{
+ 		  auto_vec<tree> ops(3);
+ 		  ops.quick_push (op0);
+ 		  ops.quick_push (op1);
+ 		  ops.quick_push (op2);
+ 		  auto_vec<vec<tree> > vec_defs(3);
+ 		  vect_get_slp_defs (ops, slp_node, &vec_defs, -1);
+ 		  vec_oprnds0 = vec_defs[0];
+ 		  vec_oprnds1 = vec_defs[1];
+ 		  vec_oprnds2 = vec_defs[2];
+ 		}
+ 	      else
+ 		{ 
+ 		  vect_get_vec_defs (op0, op1, stmt, &vec_oprnds0, &vec_oprnds1,
+ 				     NULL, -1);
+ 		  vect_get_vec_defs (op2, NULL_TREE, stmt, &vec_oprnds2, NULL,
+ 				     NULL, -1);
+ 		}
+ 	    }
  	  else
  	    vect_get_vec_defs (op0, NULL_TREE, stmt, &vec_oprnds0, NULL,
  			       slp_node, -1);
  	}
        else
  	{
*************** vectorizable_store (gimple *stmt, gimple
*** 5317,5322 ****
--- 5336,5347 ----
  
    op = gimple_assign_rhs1 (stmt);
  
+   /* In the case this is a store from a STRING_CST make sure
+      native_encode_expr can handle it.  */
+   if (TREE_CODE (op) == STRING_CST
+       && ! can_native_encode_string_p (op))
+     return false;
+ 
    if (!vect_is_simple_use (op, vinfo, &def_stmt, &dt, &rhs_vectype))
      {
        if (dump_enabled_p ())
*************** vectorizable_load (gimple *stmt, gimple_
*** 6912,6921 ****
  	     not only the number of vector stmts the permutation result
  	     fits in.  */
  	  if (slp_perm)
! 	    vec_num = (group_size * vf + nunits - 1) / nunits;
  	  else
! 	    vec_num = SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node);
! 	  group_gap_adj = vf * group_size - nunits * vec_num;
      	}
        else
  	vec_num = group_size;
--- 6937,6952 ----
  	     not only the number of vector stmts the permutation result
  	     fits in.  */
  	  if (slp_perm)
! 	    {
! 	      vec_num = (group_size * vf + nunits - 1) / nunits;
! 	      group_gap_adj = vf * group_size - nunits * vec_num;
! 	    }
  	  else
! 	    {
! 	      vec_num = SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node);
! 	      group_gap_adj
! 		= group_size - SLP_INSTANCE_GROUP_SIZE (slp_node_instance);
! 	    }
      	}
        else
  	vec_num = group_size;
*************** vectorizable_load (gimple *stmt, gimple_
*** 7076,7081 ****
--- 7107,7113 ----
      aggr_type = vectype;
  
    prev_stmt_info = NULL;
+   int group_elt = 0;
    for (j = 0; j < ncopies; j++)
      {
        /* 1. Create the vector or array pointer update chain.  */
*************** vectorizable_load (gimple *stmt, gimple_
*** 7367,7376 ****
  	      /* Store vector loads in the corresponding SLP_NODE.  */
  	      if (slp && !slp_perm)
  		SLP_TREE_VEC_STMTS (slp_node).quick_push (new_stmt);
  	    }
  	  /* Bump the vector pointer to account for a gap or for excess
  	     elements loaded for a permuted SLP load.  */
! 	  if (group_gap_adj != 0)
  	    {
  	      bool ovf;
  	      tree bump
--- 7399,7425 ----
  	      /* Store vector loads in the corresponding SLP_NODE.  */
  	      if (slp && !slp_perm)
  		SLP_TREE_VEC_STMTS (slp_node).quick_push (new_stmt);
+ 
+ 	      /* With SLP permutation we load the gaps as well, without
+ 	         we need to skip the gaps after we manage to fully load
+ 		 all elements.  group_gap_adj is GROUP_SIZE here.  */
+ 	      group_elt += nunits;
+ 	      if (group_gap_adj != 0 && ! slp_perm
+ 		  && group_elt == group_size - group_gap_adj)
+ 		{
+ 		  bool ovf;
+ 		  tree bump
+ 		    = wide_int_to_tree (sizetype,
+ 					wi::smul (TYPE_SIZE_UNIT (elem_type),
+ 						  group_gap_adj, &ovf));
+ 		  dataref_ptr = bump_vector_ptr (dataref_ptr, ptr_incr, gsi,
+ 						 stmt, bump);
+ 		  group_elt = 0;
+ 		}
  	    }
  	  /* Bump the vector pointer to account for a gap or for excess
  	     elements loaded for a permuted SLP load.  */
! 	  if (group_gap_adj != 0 && slp_perm)
  	    {
  	      bool ovf;
  	      tree bump
diff -Nrcpad gcc-6.4.0/gcc/tree-vrp.c gcc-6.5.0/gcc/tree-vrp.c
*** gcc-6.4.0/gcc/tree-vrp.c	Fri Apr 21 08:37:13 2017
--- gcc-6.5.0/gcc/tree-vrp.c	Mon Jun 25 17:53:50 2018
*************** union_ranges (enum value_range_type *vr0
*** 8266,8274 ****
  	  if (TREE_CODE (*vr0min) == INTEGER_CST)
  	    {
  	      *vr0type = vr1type;
- 	      *vr0min = vr1min;
  	      *vr0max = int_const_binop (MINUS_EXPR, *vr0min,
  					 build_int_cst (TREE_TYPE (*vr0min), 1));
  	    }
  	  else
  	    goto give_up;
--- 8266,8274 ----
  	  if (TREE_CODE (*vr0min) == INTEGER_CST)
  	    {
  	      *vr0type = vr1type;
  	      *vr0max = int_const_binop (MINUS_EXPR, *vr0min,
  					 build_int_cst (TREE_TYPE (*vr0min), 1));
+ 	      *vr0min = vr1min;
  	    }
  	  else
  	    goto give_up;
diff -Nrcpad gcc-6.4.0/gcc/tree.c gcc-6.5.0/gcc/tree.c
*** gcc-6.4.0/gcc/tree.c	Thu Jun 22 07:30:03 2017
--- gcc-6.5.0/gcc/tree.c	Thu Jun 21 07:24:06 2018
*************** free_lang_data_in_decl (tree decl)
*** 5445,5453 ****
  	 At this point, it is not needed anymore.  */
        DECL_SAVED_TREE (decl) = NULL_TREE;
  
!       /* Clear the abstract origin if it refers to a method.  Otherwise
!          dwarf2out.c will ICE as we clear TYPE_METHODS and thus the
! 	 origin will not be output correctly.  */
        if (DECL_ABSTRACT_ORIGIN (decl)
  	  && DECL_CONTEXT (DECL_ABSTRACT_ORIGIN (decl))
  	  && RECORD_OR_UNION_TYPE_P
--- 5445,5454 ----
  	 At this point, it is not needed anymore.  */
        DECL_SAVED_TREE (decl) = NULL_TREE;
  
!       /* Clear the abstract origin if it refers to a method.
!          Otherwise dwarf2out.c will ICE as we splice functions out of
!          TYPE_FIELDS and thus the origin will not be output
!          correctly.  */
        if (DECL_ABSTRACT_ORIGIN (decl)
  	  && DECL_CONTEXT (DECL_ABSTRACT_ORIGIN (decl))
  	  && RECORD_OR_UNION_TYPE_P
*************** array_ref_up_bound (tree exp)
*** 12943,12957 ****
    return NULL_TREE;
  }
  
! /* Returns true if REF is an array reference to an array at the end of
!    a structure.  If this is the case, the array may be allocated larger
     than its upper bound implies.  */
  
  bool
  array_at_struct_end_p (tree ref)
  {
!   if (TREE_CODE (ref) != ARRAY_REF
!       && TREE_CODE (ref) != ARRAY_RANGE_REF)
      return false;
  
    while (handled_component_p (ref))
--- 12944,12969 ----
    return NULL_TREE;
  }
  
! /* Returns true if REF is an array reference or a component reference
!    to an array at the end of a structure.
!    If this is the case, the array may be allocated larger
     than its upper bound implies.  */
  
  bool
  array_at_struct_end_p (tree ref)
  {
!   tree atype;
! 
!   if (TREE_CODE (ref) == ARRAY_REF
!       || TREE_CODE (ref) == ARRAY_RANGE_REF)
!     {
!       atype = TREE_TYPE (TREE_OPERAND (ref, 0));
!       ref = TREE_OPERAND (ref, 0);
!     }
!   else if (TREE_CODE (ref) == COMPONENT_REF
! 	   && TREE_CODE (TREE_TYPE (TREE_OPERAND (ref, 1))) == ARRAY_TYPE)
!     atype = TREE_TYPE (TREE_OPERAND (ref, 1));
!   else
      return false;
  
    while (handled_component_p (ref))
*************** array_at_struct_end_p (tree ref)
*** 12959,12982 ****
        /* If the reference chain contains a component reference to a
           non-union type and there follows another field the reference
  	 is not at the end of a structure.  */
!       if (TREE_CODE (ref) == COMPONENT_REF
! 	  && TREE_CODE (TREE_TYPE (TREE_OPERAND (ref, 0))) == RECORD_TYPE)
  	{
! 	  tree nextf = DECL_CHAIN (TREE_OPERAND (ref, 1));
! 	  while (nextf && TREE_CODE (nextf) != FIELD_DECL)
! 	    nextf = DECL_CHAIN (nextf);
! 	  if (nextf)
! 	    return false;
  	}
  
        ref = TREE_OPERAND (ref, 0);
      }
  
    /* If the reference is based on a declared entity, the size of the array
       is constrained by its given domain.  (Do not trust commons PR/69368).  */
    if (DECL_P (ref)
        && !(flag_unconstrained_commons
! 	   && TREE_CODE (ref) == VAR_DECL && DECL_COMMON (ref)))
      return false;
  
    return true;
--- 12971,13017 ----
        /* If the reference chain contains a component reference to a
           non-union type and there follows another field the reference
  	 is not at the end of a structure.  */
!       if (TREE_CODE (ref) == COMPONENT_REF)
  	{
! 	  if (TREE_CODE (TREE_TYPE (TREE_OPERAND (ref, 0))) == RECORD_TYPE)
! 	    {
! 	      tree nextf = DECL_CHAIN (TREE_OPERAND (ref, 1));
! 	      while (nextf && TREE_CODE (nextf) != FIELD_DECL)
! 		nextf = DECL_CHAIN (nextf);
! 	      if (nextf)
! 		return false;
! 	    }
  	}
+       /* If we have a multi-dimensional array we do not consider
+          a non-innermost dimension as flex array if the whole
+ 	 multi-dimensional array is at struct end.
+ 	 Same for an array of aggregates with a trailing array
+ 	 member.  */
+       else if (TREE_CODE (ref) == ARRAY_REF)
+ 	return false;
+       else if (TREE_CODE (ref) == ARRAY_RANGE_REF)
+ 	;
+       /* If we view an underlying object as sth else then what we
+          gathered up to now is what we have to rely on.  */
+       else if (TREE_CODE (ref) == VIEW_CONVERT_EXPR)
+ 	break;
+       else
+ 	gcc_unreachable ();
  
        ref = TREE_OPERAND (ref, 0);
      }
  
+   /* The array now is at struct end.  Treat flexible arrays as
+      always subject to extend, even into just padding constrained by
+      an underlying decl.  */
+   if (! TYPE_SIZE (atype))
+     return true;
+ 
    /* If the reference is based on a declared entity, the size of the array
       is constrained by its given domain.  (Do not trust commons PR/69368).  */
    if (DECL_P (ref)
        && !(flag_unconstrained_commons
! 	   && VAR_P (ref) && DECL_COMMON (ref)))
      return false;
  
    return true;
diff -Nrcpad gcc-6.4.0/gcc/ubsan.c gcc-6.5.0/gcc/ubsan.c
*** gcc-6.4.0/gcc/ubsan.c	Fri May 26 11:28:07 2017
--- gcc-6.5.0/gcc/ubsan.c	Mon Jun 25 16:54:49 2018
*************** ubsan_type_descriptor (tree type, enum u
*** 380,385 ****
--- 380,386 ----
      /* We weren't able to determine the type name.  */
      tname = "<unknown>";
  
+   tree eltype = type;
    if (pstyle == UBSAN_PRINT_POINTER)
      {
        pp_printf (&pretty_name, "'%s%s%s%s%s%s%s",
*************** ubsan_type_descriptor (tree type, enum u
*** 412,421 ****
  	      && TYPE_MAX_VALUE (dom) != NULL_TREE
  	      && TREE_CODE (TYPE_MAX_VALUE (dom)) == INTEGER_CST)
  	    {
  	      if (tree_fits_uhwi_p (TYPE_MAX_VALUE (dom))
! 		  && tree_to_uhwi (TYPE_MAX_VALUE (dom)) + 1 != 0)
! 		pp_printf (&pretty_name, HOST_WIDE_INT_PRINT_DEC,
! 			    tree_to_uhwi (TYPE_MAX_VALUE (dom)) + 1);
  	      else
  		pp_wide_int (&pretty_name,
  			     wi::add (wi::to_widest (TYPE_MAX_VALUE (dom)), 1),
--- 413,422 ----
  	      && TYPE_MAX_VALUE (dom) != NULL_TREE
  	      && TREE_CODE (TYPE_MAX_VALUE (dom)) == INTEGER_CST)
  	    {
+ 	      unsigned HOST_WIDE_INT m;
  	      if (tree_fits_uhwi_p (TYPE_MAX_VALUE (dom))
! 		  && (m = tree_to_uhwi (TYPE_MAX_VALUE (dom))) + 1 != 0)
! 		pp_unsigned_wide_integer (&pretty_name, m + 1);
  	      else
  		pp_wide_int (&pretty_name,
  			     wi::add (wi::to_widest (TYPE_MAX_VALUE (dom)), 1),
*************** ubsan_type_descriptor (tree type, enum u
*** 430,441 ****
        pp_quote (&pretty_name);
  
        /* Save the tree with stripped types.  */
!       type = t;
      }
    else
      pp_printf (&pretty_name, "'%s'", tname);
  
!   switch (TREE_CODE (type))
      {
      case BOOLEAN_TYPE:
      case ENUMERAL_TYPE:
--- 431,442 ----
        pp_quote (&pretty_name);
  
        /* Save the tree with stripped types.  */
!       eltype = t;
      }
    else
      pp_printf (&pretty_name, "'%s'", tname);
  
!   switch (TREE_CODE (eltype))
      {
      case BOOLEAN_TYPE:
      case ENUMERAL_TYPE:
*************** ubsan_type_descriptor (tree type, enum u
*** 445,453 ****
      case REAL_TYPE:
        /* FIXME: libubsan right now only supports float, double and
  	 long double type formats.  */
!       if (TYPE_MODE (type) == TYPE_MODE (float_type_node)
! 	  || TYPE_MODE (type) == TYPE_MODE (double_type_node)
! 	  || TYPE_MODE (type) == TYPE_MODE (long_double_type_node))
  	tkind = 0x0001;
        else
  	tkind = 0xffff;
--- 446,454 ----
      case REAL_TYPE:
        /* FIXME: libubsan right now only supports float, double and
  	 long double type formats.  */
!       if (TYPE_MODE (eltype) == TYPE_MODE (float_type_node)
! 	  || TYPE_MODE (eltype) == TYPE_MODE (double_type_node)
! 	  || TYPE_MODE (eltype) == TYPE_MODE (long_double_type_node))
  	tkind = 0x0001;
        else
  	tkind = 0xffff;
*************** ubsan_type_descriptor (tree type, enum u
*** 456,462 ****
        tkind = 0xffff;
        break;
      }
!   tinfo = get_ubsan_type_info_for_type (type);
  
    /* Create a new VAR_DECL of type descriptor.  */
    const char *tmp = pp_formatted_text (&pretty_name);
--- 457,463 ----
        tkind = 0xffff;
        break;
      }
!   tinfo = get_ubsan_type_info_for_type (eltype);
  
    /* Create a new VAR_DECL of type descriptor.  */
    const char *tmp = pp_formatted_text (&pretty_name);
diff -Nrcpad gcc-6.4.0/gcc/valtrack.c gcc-6.5.0/gcc/valtrack.c
*** gcc-6.4.0/gcc/valtrack.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/gcc/valtrack.c	Thu Mar  8 08:56:45 2018
*************** along with GCC; see the file COPYING3.
*** 28,33 ****
--- 28,34 ----
  #include "valtrack.h"
  #include "regs.h"
  #include "emit-rtl.h"
+ #include "rtl-iter.h"
  
  /* gen_lowpart_no_emit hook implementation for DEBUG_INSNs.  In DEBUG_INSNs,
     all lowpart SUBREGs are valid, despite what the machine requires for
*************** struct rtx_subst_pair
*** 148,153 ****
--- 149,155 ----
  {
    rtx to;
    bool adjusted;
+   rtx_insn *insn;
  };
  
  /* DATA points to an rtx_subst_pair.  Return the value that should be
*************** propagate_for_debug_subst (rtx from, con
*** 165,170 ****
--- 167,189 ----
        pair->adjusted = true;
        pair->to = cleanup_auto_inc_dec (pair->to, VOIDmode);
        pair->to = make_compound_operation (pair->to, SET);
+       /* Avoid propagation from growing DEBUG_INSN expressions too much.  */
+       int cnt = 0;
+       subrtx_iterator::array_type array;
+       FOR_EACH_SUBRTX (iter, array, pair->to, ALL)
+ 	if (REG_P (*iter) && ++cnt > 1)
+ 	  {
+ 	    rtx dval = make_debug_expr_from_rtl (old_rtx);
+ 	    /* Emit a debug bind insn.  */
+ 	    rtx bind
+ 	      = gen_rtx_VAR_LOCATION (GET_MODE (old_rtx),
+ 				      DEBUG_EXPR_TREE_DECL (dval), pair->to,
+ 				      VAR_INIT_STATUS_INITIALIZED);
+ 	    rtx_insn *bind_insn = emit_debug_insn_before (bind, pair->insn);
+ 	    df_insn_rescan (bind_insn);
+ 	    pair->to = dval;
+ 	    break;
+ 	  }
        return pair->to;
      }
    return copy_rtx (pair->to);
*************** propagate_for_debug (rtx_insn *insn, rtx
*** 185,190 ****
--- 204,210 ----
    struct rtx_subst_pair p;
    p.to = src;
    p.adjusted = false;
+   p.insn = NEXT_INSN (insn);
  
    next = NEXT_INSN (insn);
    last = NEXT_INSN (last);
diff -Nrcpad gcc-6.4.0/gcc/varasm.c gcc-6.5.0/gcc/varasm.c
*** gcc-6.4.0/gcc/varasm.c	Thu Jan  5 10:11:28 2017
--- gcc-6.5.0/gcc/varasm.c	Wed Jun 20 11:09:28 2018
*************** static void
*** 2806,2812 ****
  decode_addr_const (tree exp, struct addr_const *value)
  {
    tree target = TREE_OPERAND (exp, 0);
!   int offset = 0;
    rtx x;
  
    while (1)
--- 2806,2812 ----
  decode_addr_const (tree exp, struct addr_const *value)
  {
    tree target = TREE_OPERAND (exp, 0);
!   HOST_WIDE_INT offset = 0;
    rtx x;
  
    while (1)
*************** decode_addr_const (tree exp, struct addr
*** 2820,2827 ****
        else if (TREE_CODE (target) == ARRAY_REF
  	       || TREE_CODE (target) == ARRAY_RANGE_REF)
  	{
! 	  offset += (tree_to_uhwi (TYPE_SIZE_UNIT (TREE_TYPE (target)))
! 		     * tree_to_shwi (TREE_OPERAND (target, 1)));
  	  target = TREE_OPERAND (target, 0);
  	}
        else if (TREE_CODE (target) == MEM_REF
--- 2820,2828 ----
        else if (TREE_CODE (target) == ARRAY_REF
  	       || TREE_CODE (target) == ARRAY_RANGE_REF)
  	{
! 	  /* Truncate big offset.  */
! 	  offset += (TREE_INT_CST_LOW (TYPE_SIZE_UNIT (TREE_TYPE (target)))
! 		     * TREE_INT_CST_LOW (TREE_OPERAND (target, 1)));
  	  target = TREE_OPERAND (target, 0);
  	}
        else if (TREE_CODE (target) == MEM_REF
diff -Nrcpad gcc-6.4.0/gnattools/ChangeLog gcc-6.5.0/gnattools/ChangeLog
*** gcc-6.4.0/gnattools/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gnattools/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/gotools/ChangeLog gcc-6.5.0/gotools/ChangeLog
*** gcc-6.4.0/gotools/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/gotools/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/include/ChangeLog gcc-6.5.0/include/ChangeLog
*** gcc-6.4.0/include/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/include/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/intl/ChangeLog gcc-6.5.0/intl/ChangeLog
*** gcc-6.4.0/intl/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/intl/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libada/ChangeLog gcc-6.5.0/libada/ChangeLog
*** gcc-6.4.0/libada/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libada/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libatomic/ChangeLog gcc-6.5.0/libatomic/ChangeLog
*** gcc-6.4.0/libatomic/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libatomic/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libbacktrace/ChangeLog gcc-6.5.0/libbacktrace/ChangeLog
*** gcc-6.4.0/libbacktrace/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libbacktrace/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libcc1/ChangeLog gcc-6.5.0/libcc1/ChangeLog
*** gcc-6.4.0/libcc1/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libcc1/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libcilkrts/ChangeLog gcc-6.5.0/libcilkrts/ChangeLog
*** gcc-6.4.0/libcilkrts/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libcilkrts/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libcpp/ChangeLog gcc-6.5.0/libcpp/ChangeLog
*** gcc-6.4.0/libcpp/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libcpp/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,19 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-06-15  Martin Liska  <mliska@suse.cz>
+ 
+ 	PR bootstrap/86162
+ 
+ 	Backport from mainline
+ 	2018-01-10  Kelvin Nilsen  <kelvin@gcc.gnu.org>
+ 
+ 	* lex.c (search_line_fast): Remove illegal coercion of an
+ 	unaligned pointer value to vector pointer type and replace with
+ 	use of __builtin_vec_vsx_ld () built-in function, which operates
+ 	on unaligned pointer values.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libcpp/lex.c gcc-6.5.0/libcpp/lex.c
*** gcc-6.4.0/libcpp/lex.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libcpp/lex.c	Fri Jun 15 08:51:28 2018
*************** search_line_fast (const uchar *s, const
*** 568,574 ****
      {
        vc m_nl, m_cr, m_bs, m_qm;
  
!       data = *((const vc *)s);
        s += 16;
  
        m_nl = (vc) __builtin_vec_cmpeq(data, repl_nl);
--- 568,574 ----
      {
        vc m_nl, m_cr, m_bs, m_qm;
  
!       data = __builtin_vec_vsx_ld (0, s);
        s += 16;
  
        m_nl = (vc) __builtin_vec_cmpeq(data, repl_nl);
diff -Nrcpad gcc-6.4.0/libcpp/po/ChangeLog gcc-6.5.0/libcpp/po/ChangeLog
*** gcc-6.4.0/libcpp/po/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libcpp/po/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libdecnumber/ChangeLog gcc-6.5.0/libdecnumber/ChangeLog
*** gcc-6.4.0/libdecnumber/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libdecnumber/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libffi/ChangeLog gcc-6.5.0/libffi/ChangeLog
*** gcc-6.4.0/libffi/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libffi/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libffi/doc/libffi.info gcc-6.5.0/libffi/doc/libffi.info
*** gcc-6.4.0/libffi/doc/libffi.info	Tue Jul  4 09:38:00 2017
--- gcc-6.5.0/libffi/doc/libffi.info	Fri Oct 26 10:10:30 2018
***************
*** 1,5 ****
! This is doc/libffi.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/libffi/doc/libffi.texi.
  
  This manual is for Libffi, a portable foreign-function interface
  library.
--- 1,4 ----
! This is libffi.info, produced by makeinfo version 6.4 from libffi.texi.
  
  This manual is for Libffi, a portable foreign-function interface
  library.
*************** library.
*** 8,17 ****
  
       Permission is granted to copy, distribute and/or modify this
       document under the terms of the GNU General Public License as
!      published by the Free Software Foundation; either version 2, or
!      (at your option) any later version.  A copy of the license is
!      included in the section entitled "GNU General Public License".
! 
  
  INFO-DIR-SECTION Development
  START-INFO-DIR-ENTRY
--- 7,15 ----
  
       Permission is granted to copy, distribute and/or modify this
       document under the terms of the GNU General Public License as
!      published by the Free Software Foundation; either version 2, or (at
!      your option) any later version.  A copy of the license is included
!      in the section entitled "GNU General Public License".
  
  INFO-DIR-SECTION Development
  START-INFO-DIR-ENTRY
*************** library.
*** 31,40 ****
  
       Permission is granted to copy, distribute and/or modify this
       document under the terms of the GNU General Public License as
!      published by the Free Software Foundation; either version 2, or
!      (at your option) any later version.  A copy of the license is
!      included in the section entitled "GNU General Public License".
! 
  
  * Menu:
  
--- 29,37 ----
  
       Permission is granted to copy, distribute and/or modify this
       document under the terms of the GNU General Public License as
!      published by the Free Software Foundation; either version 2, or (at
!      your option) any later version.  A copy of the license is included
!      in the section entitled "GNU General Public License".
  
  * Menu:
  
*************** The calling convention is a set of assum
*** 56,80 ****
  about where function arguments will be found on entry to a function.  A
  calling convention also specifies where the return value for a function
  is found.  The calling convention is also sometimes called the "ABI" or
! "Application Binary Interface".  
  
     Some programs may not know at the time of compilation what arguments
  are to be passed to a function.  For instance, an interpreter may be
  told at run-time about the number and types of arguments used to call a
! given function.  `Libffi' can be used in such programs to provide a
  bridge from the interpreter program to compiled code.
  
!    The `libffi' library provides a portable, high level programming
  interface to various calling conventions.  This allows a programmer to
  call any function specified by a call interface description at run time.
  
     FFI stands for Foreign Function Interface.  A foreign function
! interface is the popular name for the interface that allows code
! written in one language to call code written in another language.  The
! `libffi' library really only provides the lowest, machine dependent
! layer of a fully featured foreign function interface.  A layer must
! exist above `libffi' that handles type conversions for values passed
! between the two languages.  
  
  
  File: libffi.info,  Node: Using libffi,  Next: Missing Features,  Prev: Introduction,  Up: Top
--- 53,77 ----
  about where function arguments will be found on entry to a function.  A
  calling convention also specifies where the return value for a function
  is found.  The calling convention is also sometimes called the "ABI" or
! "Application Binary Interface".
  
     Some programs may not know at the time of compilation what arguments
  are to be passed to a function.  For instance, an interpreter may be
  told at run-time about the number and types of arguments used to call a
! given function.  'Libffi' can be used in such programs to provide a
  bridge from the interpreter program to compiled code.
  
!    The 'libffi' library provides a portable, high level programming
  interface to various calling conventions.  This allows a programmer to
  call any function specified by a call interface description at run time.
  
     FFI stands for Foreign Function Interface.  A foreign function
! interface is the popular name for the interface that allows code written
! in one language to call code written in another language.  The 'libffi'
! library really only provides the lowest, machine dependent layer of a
! fully featured foreign function interface.  A layer must exist above
! 'libffi' that handles type conversions for values passed between the two
! languages.
  
  
  File: libffi.info,  Node: Using libffi,  Next: Missing Features,  Prev: Introduction,  Up: Top
*************** File: libffi.info,  Node: The Basics,  N
*** 97,141 ****
  2.1 The Basics
  ==============
  
! `Libffi' assumes that you have a pointer to the function you wish to
  call and that you know the number and types of arguments to pass it, as
  well as the return type of the function.
  
!    The first thing you must do is create an `ffi_cif' object that
  matches the signature of the function you wish to call.  This is a
! separate step because it is common to make multiple calls using a
! single `ffi_cif'.  The "cif" in `ffi_cif' stands for Call InterFace.
! To prepare a call interface object, use the function `ffi_prep_cif'.  
  
   -- Function: ffi_status ffi_prep_cif (ffi_cif *CIF, ffi_abi ABI,
            unsigned int NARGS, ffi_type *RTYPE, ffi_type **ARGTYPES)
       This initializes CIF according to the given parameters.
  
!      ABI is the ABI to use; normally `FFI_DEFAULT_ABI' is what you
!      want.  *note Multiple ABIs:: for more information.
  
       NARGS is the number of arguments that this function accepts.
  
!      RTYPE is a pointer to an `ffi_type' structure that describes the
       return type of the function.  *Note Types::.
  
!      ARGTYPES is a vector of `ffi_type' pointers.  ARGTYPES must have
       NARGS elements.  If NARGS is 0, this argument is ignored.
  
!      `ffi_prep_cif' returns a `libffi' status code, of type
!      `ffi_status'.  This will be either `FFI_OK' if everything worked
!      properly; `FFI_BAD_TYPEDEF' if one of the `ffi_type' objects is
!      incorrect; or `FFI_BAD_ABI' if the ABI parameter is invalid.
  
     If the function being called is variadic (varargs) then
! `ffi_prep_cif_var' must be used instead of `ffi_prep_cif'.
  
!  -- Function: ffi_status ffi_prep_cif_var (ffi_cif *CIF, ffi_abi
!           varabi, unsigned int NFIXEDARGS, unsigned int varntotalargs,
!           ffi_type *RTYPE, ffi_type **ARGTYPES)
       This initializes CIF according to the given parameters for a call
       to a variadic function.  In general it's operation is the same as
!      for `ffi_prep_cif' except that:
  
       NFIXEDARGS is the number of fixed arguments, prior to any variadic
       arguments.  It must be greater than zero.
--- 94,138 ----
  2.1 The Basics
  ==============
  
! 'Libffi' assumes that you have a pointer to the function you wish to
  call and that you know the number and types of arguments to pass it, as
  well as the return type of the function.
  
!    The first thing you must do is create an 'ffi_cif' object that
  matches the signature of the function you wish to call.  This is a
! separate step because it is common to make multiple calls using a single
! 'ffi_cif'.  The "cif" in 'ffi_cif' stands for Call InterFace.  To
! prepare a call interface object, use the function 'ffi_prep_cif'.
  
   -- Function: ffi_status ffi_prep_cif (ffi_cif *CIF, ffi_abi ABI,
            unsigned int NARGS, ffi_type *RTYPE, ffi_type **ARGTYPES)
       This initializes CIF according to the given parameters.
  
!      ABI is the ABI to use; normally 'FFI_DEFAULT_ABI' is what you want.
!      *note Multiple ABIs:: for more information.
  
       NARGS is the number of arguments that this function accepts.
  
!      RTYPE is a pointer to an 'ffi_type' structure that describes the
       return type of the function.  *Note Types::.
  
!      ARGTYPES is a vector of 'ffi_type' pointers.  ARGTYPES must have
       NARGS elements.  If NARGS is 0, this argument is ignored.
  
!      'ffi_prep_cif' returns a 'libffi' status code, of type
!      'ffi_status'.  This will be either 'FFI_OK' if everything worked
!      properly; 'FFI_BAD_TYPEDEF' if one of the 'ffi_type' objects is
!      incorrect; or 'FFI_BAD_ABI' if the ABI parameter is invalid.
  
     If the function being called is variadic (varargs) then
! 'ffi_prep_cif_var' must be used instead of 'ffi_prep_cif'.
  
!  -- Function: ffi_status ffi_prep_cif_var (ffi_cif *CIF, ffi_abi varabi,
!           unsigned int NFIXEDARGS, unsigned int varntotalargs, ffi_type
!           *RTYPE, ffi_type **ARGTYPES)
       This initializes CIF according to the given parameters for a call
       to a variadic function.  In general it's operation is the same as
!      for 'ffi_prep_cif' except that:
  
       NFIXEDARGS is the number of fixed arguments, prior to any variadic
       arguments.  It must be greater than zero.
*************** To prepare a call interface object, use
*** 146,172 ****
       Note that, different cif's must be prepped for calls to the same
       function when different numbers of arguments are passed.
  
!      Also note that a call to `ffi_prep_cif_var' with
       NFIXEDARGS=NOTOTALARGS is NOT equivalent to a call to
!      `ffi_prep_cif'.
! 
  
!    To call a function using an initialized `ffi_cif', use the
! `ffi_call' function:
  
   -- Function: void ffi_call (ffi_cif *CIF, void *FN, void *RVALUE, void
            **AVALUES)
       This calls the function FN according to the description given in
!      CIF.  CIF must have already been prepared using `ffi_prep_cif'.
  
       RVALUE is a pointer to a chunk of memory that will hold the result
       of the function call.  This must be large enough to hold the
       result, no smaller than the system register size (generally 32 or
       64 bits), and must be suitably aligned; it is the caller's
       responsibility to ensure this.  If CIF declares that the function
!      returns `void' (using `ffi_type_void'), then RVALUE is ignored.
  
!      AVALUES is a vector of `void *' pointers that point to the memory
       locations holding the argument values for a call.  If CIF declares
       that the function has no arguments (i.e., NARGS was 0), then
       AVALUES is ignored.  Note that argument values may be modified by
--- 143,168 ----
       Note that, different cif's must be prepped for calls to the same
       function when different numbers of arguments are passed.
  
!      Also note that a call to 'ffi_prep_cif_var' with
       NFIXEDARGS=NOTOTALARGS is NOT equivalent to a call to
!      'ffi_prep_cif'.
  
!    To call a function using an initialized 'ffi_cif', use the 'ffi_call'
! function:
  
   -- Function: void ffi_call (ffi_cif *CIF, void *FN, void *RVALUE, void
            **AVALUES)
       This calls the function FN according to the description given in
!      CIF.  CIF must have already been prepared using 'ffi_prep_cif'.
  
       RVALUE is a pointer to a chunk of memory that will hold the result
       of the function call.  This must be large enough to hold the
       result, no smaller than the system register size (generally 32 or
       64 bits), and must be suitably aligned; it is the caller's
       responsibility to ensure this.  If CIF declares that the function
!      returns 'void' (using 'ffi_type_void'), then RVALUE is ignored.
  
!      AVALUES is a vector of 'void *' pointers that point to the memory
       locations holding the argument values for a call.  If CIF declares
       that the function has no arguments (i.e., NARGS was 0), then
       AVALUES is ignored.  Note that argument values may be modified by
*************** File: libffi.info,  Node: Simple Example
*** 179,185 ****
  2.2 Simple Example
  ==================
  
! Here is a trivial example that calls `puts' a few times.
  
       #include <stdio.h>
       #include <ffi.h>
--- 175,181 ----
  2.2 Simple Example
  ==================
  
! Here is a trivial example that calls 'puts' a few times.
  
       #include <stdio.h>
       #include <ffi.h>
*************** File: libffi.info,  Node: Primitive Type
*** 234,324 ****
  2.3.1 Primitive Types
  ---------------------
  
! `Libffi' provides a number of built-in type descriptors that can be
! used to describe argument and return types:
  
! `ffi_type_void'
!      The type `void'.  This cannot be used for argument types, only for
       return values.
  
! `ffi_type_uint8'
       An unsigned, 8-bit integer type.
  
! `ffi_type_sint8'
       A signed, 8-bit integer type.
  
! `ffi_type_uint16'
       An unsigned, 16-bit integer type.
  
! `ffi_type_sint16'
       A signed, 16-bit integer type.
  
! `ffi_type_uint32'
       An unsigned, 32-bit integer type.
  
! `ffi_type_sint32'
       A signed, 32-bit integer type.
  
! `ffi_type_uint64'
       An unsigned, 64-bit integer type.
  
! `ffi_type_sint64'
       A signed, 64-bit integer type.
  
! `ffi_type_float'
!      The C `float' type.
  
! `ffi_type_double'
!      The C `double' type.
  
! `ffi_type_uchar'
!      The C `unsigned char' type.
  
! `ffi_type_schar'
!      The C `signed char' type.  (Note that there is not an exact
!      equivalent to the C `char' type in `libffi'; ordinarily you should
!      either use `ffi_type_schar' or `ffi_type_uchar' depending on
!      whether `char' is signed.)
  
! `ffi_type_ushort'
!      The C `unsigned short' type.
  
! `ffi_type_sshort'
!      The C `short' type.
  
! `ffi_type_uint'
!      The C `unsigned int' type.
  
! `ffi_type_sint'
!      The C `int' type.
  
! `ffi_type_ulong'
!      The C `unsigned long' type.
  
! `ffi_type_slong'
!      The C `long' type.
  
! `ffi_type_longdouble'
!      On platforms that have a C `long double' type, this is defined.
!      On other platforms, it is not.
  
! `ffi_type_pointer'
!      A generic `void *' pointer.  You should use this for all pointers,
       regardless of their real type.
  
! `ffi_type_complex_float'
!      The C `_Complex float' type.
  
! `ffi_type_complex_double'
!      The C `_Complex double' type.
  
! `ffi_type_complex_longdouble'
!      The C `_Complex long double' type.  On platforms that have a C
!      `long double' type, this is defined.  On other platforms, it is
       not.
  
!    Each of these is of type `ffi_type', so you must take the address
! when passing to `ffi_prep_cif'.
  
  
  File: libffi.info,  Node: Structures,  Next: Type Example,  Prev: Primitive Types,  Up: Types
--- 230,320 ----
  2.3.1 Primitive Types
  ---------------------
  
! 'Libffi' provides a number of built-in type descriptors that can be used
! to describe argument and return types:
  
! 'ffi_type_void'
!      The type 'void'.  This cannot be used for argument types, only for
       return values.
  
! 'ffi_type_uint8'
       An unsigned, 8-bit integer type.
  
! 'ffi_type_sint8'
       A signed, 8-bit integer type.
  
! 'ffi_type_uint16'
       An unsigned, 16-bit integer type.
  
! 'ffi_type_sint16'
       A signed, 16-bit integer type.
  
! 'ffi_type_uint32'
       An unsigned, 32-bit integer type.
  
! 'ffi_type_sint32'
       A signed, 32-bit integer type.
  
! 'ffi_type_uint64'
       An unsigned, 64-bit integer type.
  
! 'ffi_type_sint64'
       A signed, 64-bit integer type.
  
! 'ffi_type_float'
!      The C 'float' type.
  
! 'ffi_type_double'
!      The C 'double' type.
  
! 'ffi_type_uchar'
!      The C 'unsigned char' type.
  
! 'ffi_type_schar'
!      The C 'signed char' type.  (Note that there is not an exact
!      equivalent to the C 'char' type in 'libffi'; ordinarily you should
!      either use 'ffi_type_schar' or 'ffi_type_uchar' depending on
!      whether 'char' is signed.)
  
! 'ffi_type_ushort'
!      The C 'unsigned short' type.
  
! 'ffi_type_sshort'
!      The C 'short' type.
  
! 'ffi_type_uint'
!      The C 'unsigned int' type.
  
! 'ffi_type_sint'
!      The C 'int' type.
  
! 'ffi_type_ulong'
!      The C 'unsigned long' type.
  
! 'ffi_type_slong'
!      The C 'long' type.
  
! 'ffi_type_longdouble'
!      On platforms that have a C 'long double' type, this is defined.  On
!      other platforms, it is not.
  
! 'ffi_type_pointer'
!      A generic 'void *' pointer.  You should use this for all pointers,
       regardless of their real type.
  
! 'ffi_type_complex_float'
!      The C '_Complex float' type.
  
! 'ffi_type_complex_double'
!      The C '_Complex double' type.
  
! 'ffi_type_complex_longdouble'
!      The C '_Complex long double' type.  On platforms that have a C
!      'long double' type, this is defined.  On other platforms, it is
       not.
  
!    Each of these is of type 'ffi_type', so you must take the address
! when passing to 'ffi_prep_cif'.
  
  
  File: libffi.info,  Node: Structures,  Next: Type Example,  Prev: Primitive Types,  Up: Types
*************** File: libffi.info,  Node: Structures,  N
*** 326,349 ****
  2.3.2 Structures
  ----------------
  
! Although `libffi' has no special support for unions or bit-fields, it
! is perfectly happy passing structures back and forth.  You must first
! describe the structure to `libffi' by creating a new `ffi_type' object
  for it.
  
   -- Data type: ffi_type
!      The `ffi_type' has the following members:
!     `size_t size'
!           This is set by `libffi'; you should initialize it to zero.
  
!     `unsigned short alignment'
!           This is set by `libffi'; you should initialize it to zero.
  
!     `unsigned short type'
!           For a structure, this should be set to `FFI_TYPE_STRUCT'.
  
!     `ffi_type **elements'
!           This is a `NULL'-terminated array of pointers to `ffi_type'
            objects.  There is one element per field of the struct.
  
  
--- 322,345 ----
  2.3.2 Structures
  ----------------
  
! Although 'libffi' has no special support for unions or bit-fields, it is
! perfectly happy passing structures back and forth.  You must first
! describe the structure to 'libffi' by creating a new 'ffi_type' object
  for it.
  
   -- Data type: ffi_type
!      The 'ffi_type' has the following members:
!      'size_t size'
!           This is set by 'libffi'; you should initialize it to zero.
  
!      'unsigned short alignment'
!           This is set by 'libffi'; you should initialize it to zero.
  
!      'unsigned short type'
!           For a structure, this should be set to 'FFI_TYPE_STRUCT'.
  
!      'ffi_type **elements'
!           This is a 'NULL'-terminated array of pointers to 'ffi_type'
            objects.  There is one element per field of the struct.
  
  
*************** File: libffi.info,  Node: Type Example,
*** 352,359 ****
  2.3.3 Type Example
  ------------------
  
! The following example initializes a `ffi_type' object representing the
! `tm' struct from Linux's `time.h'.
  
     Here is how the struct is defined:
  
--- 348,355 ----
  2.3.3 Type Example
  ------------------
  
! The following example initializes a 'ffi_type' object representing the
! 'tm' struct from Linux's 'time.h'.
  
     Here is how the struct is defined:
  
*************** The following example initializes a `ffi
*** 372,378 ****
           __const char *__tm_zone__;
       };
  
!    Here is the corresponding code to describe this struct to `libffi':
  
           {
             ffi_type tm_type;
--- 368,374 ----
           __const char *__tm_zone__;
       };
  
!    Here is the corresponding code to describe this struct to 'libffi':
  
           {
             ffi_type tm_type;
*************** File: libffi.info,  Node: Complex,  Next
*** 400,436 ****
  2.3.4 Complex Types
  -------------------
  
! `libffi' supports the complex types defined by the C99 standard
! (`_Complex float', `_Complex double' and `_Complex long double' with
! the built-in type descriptors `ffi_type_complex_float',
! `ffi_type_complex_double' and `ffi_type_complex_longdouble'.
  
!    Custom complex types like `_Complex int' can also be used.  An
! `ffi_type' object has to be defined to describe the complex type to
! `libffi'.
  
   -- Data type: ffi_type
!     `size_t size'
            This must be manually set to the size of the complex type.
  
!     `unsigned short alignment'
            This must be manually set to the alignment of the complex
            type.
  
!     `unsigned short type'
!           For a complex type, this must be set to `FFI_TYPE_COMPLEX'.
  
!     `ffi_type **elements'
!           This is a `NULL'-terminated array of pointers to `ffi_type'
!           objects.  The first element is set to the `ffi_type' of the
            complex's base type.  The second element must be set to
!           `NULL'.
  
!    The section *note Complex Type Example:: shows a way to determine
! the `size' and `alignment' members in a platform independent way.
  
!    For platforms that have no complex support in `libffi' yet, the
! functions `ffi_prep_cif' and `ffi_prep_args' abort the program if they
  encounter a complex type.
  
  
--- 396,433 ----
  2.3.4 Complex Types
  -------------------
  
! 'libffi' supports the complex types defined by the C99 standard
! ('_Complex float', '_Complex double' and '_Complex long double' with the
! built-in type descriptors 'ffi_type_complex_float',
! 'ffi_type_complex_double' and 'ffi_type_complex_longdouble'.
  
!    Custom complex types like '_Complex int' can also be used.  An
! 'ffi_type' object has to be defined to describe the complex type to
! 'libffi'.
  
   -- Data type: ffi_type
!      'size_t size'
            This must be manually set to the size of the complex type.
  
!      'unsigned short alignment'
            This must be manually set to the alignment of the complex
            type.
  
!      'unsigned short type'
!           For a complex type, this must be set to 'FFI_TYPE_COMPLEX'.
  
!      'ffi_type **elements'
! 
!           This is a 'NULL'-terminated array of pointers to 'ffi_type'
!           objects.  The first element is set to the 'ffi_type' of the
            complex's base type.  The second element must be set to
!           'NULL'.
  
!    The section *note Complex Type Example:: shows a way to determine the
! 'size' and 'alignment' members in a platform independent way.
  
!    For platforms that have no complex support in 'libffi' yet, the
! functions 'ffi_prep_cif' and 'ffi_prep_args' abort the program if they
  encounter a complex type.
  
  
*************** File: libffi.info,  Node: Multiple ABIs,
*** 527,535 ****
  =================
  
  A given platform may provide multiple different ABIs at once.  For
! instance, the x86 platform has both `stdcall' and `fastcall' functions.
  
!    `libffi' provides some support for this.  However, this is
  necessarily platform-specific.
  
  
--- 524,532 ----
  =================
  
  A given platform may provide multiple different ABIs at once.  For
! instance, the x86 platform has both 'stdcall' and 'fastcall' functions.
  
!    'libffi' provides some support for this.  However, this is
  necessarily platform-specific.
  
  
*************** File: libffi.info,  Node: The Closure AP
*** 538,569 ****
  2.5 The Closure API
  ===================
  
! `libffi' also provides a way to write a generic function - a function
  that can accept and decode any combination of arguments.  This can be
! useful when writing an interpreter, or to provide wrappers for
! arbitrary functions.
  
!    This facility is called the "closure API".  Closures are not
! supported on all platforms; you can check the `FFI_CLOSURES' define to
! determine whether they are supported on the current platform.  
  
     Because closures work by assembling a tiny function at runtime, they
! require special allocation on platforms that have a non-executable
! heap.  Memory management for closures is handled by a pair of functions:
  
   -- Function: void *ffi_closure_alloc (size_t SIZE, void **CODE)
       Allocate a chunk of memory holding SIZE bytes.  This returns a
       pointer to the writable address, and sets *CODE to the
       corresponding executable address.
  
!      SIZE should be sufficient to hold a `ffi_closure' object.
  
   -- Function: void ffi_closure_free (void *WRITABLE)
!      Free memory allocated using `ffi_closure_alloc'.  The argument is
       the writable address that was returned.
  
     Once you have allocated the memory for a closure, you must construct
! a `ffi_cif' describing the function call.  Finally you can prepare the
  closure function:
  
   -- Function: ffi_status ffi_prep_closure_loc (ffi_closure *CLOSURE,
--- 535,566 ----
  2.5 The Closure API
  ===================
  
! 'libffi' also provides a way to write a generic function - a function
  that can accept and decode any combination of arguments.  This can be
! useful when writing an interpreter, or to provide wrappers for arbitrary
! functions.
  
!    This facility is called the "closure API". Closures are not supported
! on all platforms; you can check the 'FFI_CLOSURES' define to determine
! whether they are supported on the current platform.
  
     Because closures work by assembling a tiny function at runtime, they
! require special allocation on platforms that have a non-executable heap.
! Memory management for closures is handled by a pair of functions:
  
   -- Function: void *ffi_closure_alloc (size_t SIZE, void **CODE)
       Allocate a chunk of memory holding SIZE bytes.  This returns a
       pointer to the writable address, and sets *CODE to the
       corresponding executable address.
  
!      SIZE should be sufficient to hold a 'ffi_closure' object.
  
   -- Function: void ffi_closure_free (void *WRITABLE)
!      Free memory allocated using 'ffi_closure_alloc'.  The argument is
       the writable address that was returned.
  
     Once you have allocated the memory for a closure, you must construct
! a 'ffi_cif' describing the function call.  Finally you can prepare the
  closure function:
  
   -- Function: ffi_status ffi_prep_closure_loc (ffi_closure *CLOSURE,
*************** closure function:
*** 571,610 ****
            **ARGS, void *USER_DATA), void *USER_DATA, void *CODELOC)
       Prepare a closure function.
  
!      CLOSURE is the address of a `ffi_closure' object; this is the
!      writable address returned by `ffi_closure_alloc'.
  
!      CIF is the `ffi_cif' describing the function parameters.
  
       USER_DATA is an arbitrary datum that is passed, uninterpreted, to
       your closure function.
  
!      CODELOC is the executable address returned by `ffi_closure_alloc'.
  
       FUN is the function which will be called when the closure is
       invoked.  It is called with the arguments:
!     CIF
!           The `ffi_cif' passed to `ffi_prep_closure_loc'.
  
!     RET
            A pointer to the memory used for the function's return value.
            FUN must fill this, unless the function is declared as
!           returning `void'.
  
!     ARGS
            A vector of pointers to memory holding the arguments to the
            function.
  
!     USER_DATA
!           The same USER_DATA that was passed to `ffi_prep_closure_loc'.
  
!      `ffi_prep_closure_loc' will return `FFI_OK' if everything went ok,
       and something else on error.
  
!      After calling `ffi_prep_closure_loc', you can cast CODELOC to the
       appropriate pointer-to-function type.
  
!    You may see old code referring to `ffi_prep_closure'.  This function
  is deprecated, as it cannot handle the need for separate writable and
  executable addresses.
  
--- 568,607 ----
            **ARGS, void *USER_DATA), void *USER_DATA, void *CODELOC)
       Prepare a closure function.
  
!      CLOSURE is the address of a 'ffi_closure' object; this is the
!      writable address returned by 'ffi_closure_alloc'.
  
!      CIF is the 'ffi_cif' describing the function parameters.
  
       USER_DATA is an arbitrary datum that is passed, uninterpreted, to
       your closure function.
  
!      CODELOC is the executable address returned by 'ffi_closure_alloc'.
  
       FUN is the function which will be called when the closure is
       invoked.  It is called with the arguments:
!      CIF
!           The 'ffi_cif' passed to 'ffi_prep_closure_loc'.
  
!      RET
            A pointer to the memory used for the function's return value.
            FUN must fill this, unless the function is declared as
!           returning 'void'.
  
!      ARGS
            A vector of pointers to memory holding the arguments to the
            function.
  
!      USER_DATA
!           The same USER_DATA that was passed to 'ffi_prep_closure_loc'.
  
!      'ffi_prep_closure_loc' will return 'FFI_OK' if everything went ok,
       and something else on error.
  
!      After calling 'ffi_prep_closure_loc', you can cast CODELOC to the
       appropriate pointer-to-function type.
  
!    You may see old code referring to 'ffi_prep_closure'.  This function
  is deprecated, as it cannot handle the need for separate writable and
  executable addresses.
  
*************** File: libffi.info,  Node: Closure Exampl
*** 614,621 ****
  2.6 Closure Example
  ===================
  
! A trivial example that creates a new `puts' by binding `fputs' with
! `stdout'.
  
       #include <stdio.h>
       #include <ffi.h>
--- 611,618 ----
  2.6 Closure Example
  ===================
  
! A trivial example that creates a new 'puts' by binding 'fputs' with
! 'stdout'.
  
       #include <stdio.h>
       #include <ffi.h>
*************** A trivial example that creates a new `pu
*** 666,678 ****
         return 0;
       }
  
  
  File: libffi.info,  Node: Missing Features,  Next: Index,  Prev: Using libffi,  Up: Top
  
  3 Missing Features
  ******************
  
! `libffi' is missing a few features.  We welcome patches to add support
  for these.
  
     * Variadic closures.
--- 663,676 ----
         return 0;
       }
  
+ 
  
  File: libffi.info,  Node: Missing Features,  Next: Index,  Prev: Using libffi,  Up: Top
  
  3 Missing Features
  ******************
  
! 'libffi' is missing a few features.  We welcome patches to add support
  for these.
  
     * Variadic closures.
*************** Index
*** 700,716 ****
  * closure API:                           The Closure API.      (line 13)
  * closures:                              The Closure API.      (line 13)
  * FFI:                                   Introduction.         (line 31)
! * ffi_call:                              The Basics.           (line 63)
  * ffi_closure_alloc:                     The Closure API.      (line 19)
  * ffi_closure_free:                      The Closure API.      (line 26)
- * FFI_CLOSURES:                          The Closure API.      (line 13)
  * ffi_prep_cif:                          The Basics.           (line 16)
  * ffi_prep_cif_var:                      The Basics.           (line 39)
  * ffi_prep_closure_loc:                  The Closure API.      (line 34)
! * ffi_status <1>:                        The Closure API.      (line 37)
! * ffi_status:                            The Basics.           (line 18)
! * ffi_type <1>:                          Complex.              (line 15)
  * ffi_type:                              Structures.           (line 11)
  * ffi_type_complex_double:               Primitive Types.      (line 82)
  * ffi_type_complex_float:                Primitive Types.      (line 79)
  * ffi_type_complex_longdouble:           Primitive Types.      (line 85)
--- 698,717 ----
  * closure API:                           The Closure API.      (line 13)
  * closures:                              The Closure API.      (line 13)
  * FFI:                                   Introduction.         (line 31)
! * ffi_call:                              The Basics.           (line 62)
! * FFI_CLOSURES:                          The Closure API.      (line 13)
  * ffi_closure_alloc:                     The Closure API.      (line 19)
  * ffi_closure_free:                      The Closure API.      (line 26)
  * ffi_prep_cif:                          The Basics.           (line 16)
  * ffi_prep_cif_var:                      The Basics.           (line 39)
  * ffi_prep_closure_loc:                  The Closure API.      (line 34)
! * ffi_status:                            The Basics.           (line 16)
! * ffi_status <1>:                        The Basics.           (line 39)
! * ffi_status <2>:                        The Closure API.      (line 34)
  * ffi_type:                              Structures.           (line 11)
+ * ffi_type <1>:                          Structures.           (line 11)
+ * ffi_type <2>:                          Complex.              (line 15)
+ * ffi_type <3>:                          Complex.              (line 15)
  * ffi_type_complex_double:               Primitive Types.      (line 82)
  * ffi_type_complex_float:                Primitive Types.      (line 79)
  * ffi_type_complex_longdouble:           Primitive Types.      (line 85)
*************** Index
*** 736,762 ****
  * ffi_type_ushort:                       Primitive Types.      (line 53)
  * ffi_type_void:                         Primitive Types.      (line 10)
  * Foreign Function Interface:            Introduction.         (line 31)
! * void <1>:                              The Closure API.      (line 20)
! * void:                                  The Basics.           (line 65)
  
  
  
  Tag Table:
! Node: Top736
! Node: Introduction1484
! Node: Using libffi3120
! Node: The Basics3606
! Node: Simple Example7260
! Node: Types8291
! Node: Primitive Types8675
! Node: Structures10795
! Node: Type Example11665
! Node: Complex12947
! Node: Complex Type Example14360
! Node: Multiple ABIs17412
! Node: The Closure API17783
! Node: Closure Example20727
! Node: Missing Features22336
! Node: Index22764
  
  End Tag Table
--- 737,764 ----
  * ffi_type_ushort:                       Primitive Types.      (line 53)
  * ffi_type_void:                         Primitive Types.      (line 10)
  * Foreign Function Interface:            Introduction.         (line 31)
! * void:                                  The Basics.           (line 62)
! * void <1>:                              The Closure API.      (line 19)
! * void <2>:                              The Closure API.      (line 26)
  
  
  
  Tag Table:
! Node: Top682
! Node: Introduction1429
! Node: Using libffi3061
! Node: The Basics3547
! Node: Simple Example7198
! Node: Types8229
! Node: Primitive Types8613
! Node: Structures10734
! Node: Type Example11608
! Node: Complex12890
! Node: Complex Type Example14308
! Node: Multiple ABIs17360
! Node: The Closure API17731
! Node: Closure Example20675
! Node: Missing Features22285
! Node: Index22713
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/libgcc/ChangeLog gcc-6.5.0/libgcc/ChangeLog
*** gcc-6.4.0/libgcc/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libgcc/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,119 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-08-17  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-08-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/linux-atomic.c: Update comment.
+ 	(FETCH_AND_OP_2, OP_AND_FETCH_2, FETCH_AND_OP_WORD, OP_AND_FETCH_WORD,
+ 	COMPARE_AND_SWAP_2, __sync_val_compare_and_swap_4,
+ 	SYNC_LOCK_TEST_AND_SET_2, __sync_lock_test_and_set_4): Use
+ 	__ATOMIC_RELAXED for atomic loads.
+ 	(SYNC_LOCK_RELEASE_1): New define.  Use __sync_synchronize() and
+ 	unordered store to release lock.
+ 	(__sync_lock_release_8): Likewise.
+ 	(SYNC_LOCK_RELEASE_2): Remove define.
+ 	 
+ 2018-04-02  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	Backport from mainline
+ 	2018-03-29  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR target/85100
+ 	* config/i386/cpuinfo.c (XCR_XFEATURE_ENABLED_MASK): New.
+ 	(XSTATE_FP): Likewise.
+ 	(XSTATE_SSE): Likewise.
+ 	(XSTATE_YMM): Likewise.
+ 	(XSTATE_OPMASK): Likewise.
+ 	(XSTATE_ZMM): Likewise.
+ 	(XSTATE_HI_ZMM): Likewise.
+ 	(XCR_AVX_ENABLED_MASK): Likewise.
+ 	(XCR_AVX512F_ENABLED_MASK): Likewise.
+ 	(get_available_features): Enable AVX and AVX512 features only
+ 	if their states are supported by OSXSAVE.
+ 
+ 2018-03-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-03-06  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	* config/pa/fptr.c (_dl_read_access_allowed): New.
+ 	(__canonicalize_funcptr_for_compare): Use it.
+ 	
+ 2018-02-20  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	Backport from mainline
+ 	2018-02-20  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	* config/xtensa/ieee754-df.S (__adddf3_aux): Add
+ 	.literal_position directive.
+ 	* config/xtensa/ieee754-sf.S (__addsf3_aux): Likewise.
+ 
+ 2018-01-23  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	Backport from mainline
+ 	2018-01-23  Max Filippov  <jcmvbkbc@gmail.com>
+ 
+ 	* config/xtensa/ieee754-df.S (__addsf3, __subsf3, __mulsf3)
+ 	(__divsf3): Make NaN return value quiet.
+ 	* config/xtensa/ieee754-sf.S (__adddf3, __subdf3, __muldf3)
+ 	(__divdf3): Make NaN return value quiet.
+ 
+ 2017-11-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	Backport from mainline
+ 	2017-11-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+ 
+ 	* config.host (*-*-solaris2*): Adapt comment for Solaris 12
+ 	renaming.
+ 	* config/sol2/crtpg.c (__start_crt_compiler): Likewise.
+ 	* configure.ac (libgcc_cv_solaris_crts): Likewise.
+ 	* configure: Regenerate.
+ 
+ 2017-11-05  Andreas Tobler  <andreast@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2017-11-04  Andreas Tobler  <andreast@gcc.gnu.org>
+ 
+ 	PR libgcc/82635
+ 	* config/i386/freebsd-unwind.h (MD_FALLBACK_FRAME_STATE_FOR): Use a
+ 	sysctl to determine whether we're in a trampoline.
+ 	Keep the pattern matching method for systems without
+ 	KERN_PROC_SIGTRAMP sysctl.
+ 
+ 2017-10-13  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR target/82274
+ 	* libgcc2.c (__mulvDI3): If both operands have
+ 	the same highpart of -1 and the topmost bit of lowpart is 0,
+ 	multiplication overflows even if both lowparts are 0.
+ 
+ 2017-07-20  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	Backport from mainline
+ 	2017-07-07  Peter Bergner  <bergner@vnet.ibm.com>
+ 
+ 	* config/rs6000/float128-ifunc.c: Don't include auxv.h.
+ 	(have_ieee_hw_p): Delete function.
+ 	(SW_OR_HW) Use __builtin_cpu_supports().
+ 
+ 2017-07-04  Joseph Myers  <joseph@codesourcery.com>
+ 
+ 	* config/aarch64/linux-unwind.h (aarch64_fallback_frame_state),
+ 	config/alpha/linux-unwind.h (alpha_fallback_frame_state),
+ 	config/bfin/linux-unwind.h (bfin_fallback_frame_state),
+ 	config/i386/linux-unwind.h (x86_64_fallback_frame_state,
+ 	x86_fallback_frame_state), config/m68k/linux-unwind.h (struct
+ 	uw_ucontext), config/nios2/linux-unwind.h (struct nios2_ucontext),
+ 	config/pa/linux-unwind.h (pa32_fallback_frame_state),
+ 	config/sh/linux-unwind.h (sh_fallback_frame_state),
+ 	config/tilepro/linux-unwind.h (tile_fallback_frame_state),
+ 	config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Use
+ 	ucontext_t instead of struct ucontext.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libgcc/config/aarch64/linux-unwind.h gcc-6.5.0/libgcc/config/aarch64/linux-unwind.h
*** gcc-6.4.0/libgcc/config/aarch64/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/aarch64/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** aarch64_fallback_frame_state (struct _Un
*** 52,58 ****
    struct rt_sigframe
    {
      siginfo_t info;
!     struct ucontext uc;
    };
  
    struct rt_sigframe *rt_;
--- 52,58 ----
    struct rt_sigframe
    {
      siginfo_t info;
!     ucontext_t uc;
    };
  
    struct rt_sigframe *rt_;
diff -Nrcpad gcc-6.4.0/libgcc/config/alpha/linux-unwind.h gcc-6.5.0/libgcc/config/alpha/linux-unwind.h
*** gcc-6.4.0/libgcc/config/alpha/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/alpha/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** alpha_fallback_frame_state (struct _Unwi
*** 51,57 ****
      {
        struct rt_sigframe {
  	siginfo_t info;
! 	struct ucontext uc;
        } *rt_ = context->cfa;
        sc = &rt_->uc.uc_mcontext;
      }
--- 51,57 ----
      {
        struct rt_sigframe {
  	siginfo_t info;
! 	ucontext_t uc;
        } *rt_ = context->cfa;
        sc = &rt_->uc.uc_mcontext;
      }
diff -Nrcpad gcc-6.4.0/libgcc/config/bfin/linux-unwind.h gcc-6.5.0/libgcc/config/bfin/linux-unwind.h
*** gcc-6.4.0/libgcc/config/bfin/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/bfin/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** bfin_fallback_frame_state (struct _Unwin
*** 52,58 ****
  	void *puc;
  	char retcode[8];
  	siginfo_t info;
! 	struct ucontext uc;
        } *rt_ = context->cfa;
  
        /* The void * cast is necessary to avoid an aliasing warning.
--- 52,58 ----
  	void *puc;
  	char retcode[8];
  	siginfo_t info;
! 	ucontext_t uc;
        } *rt_ = context->cfa;
  
        /* The void * cast is necessary to avoid an aliasing warning.
diff -Nrcpad gcc-6.4.0/libgcc/config/i386/cpuinfo.c gcc-6.5.0/libgcc/config/i386/cpuinfo.c
*** gcc-6.4.0/libgcc/config/i386/cpuinfo.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/i386/cpuinfo.c	Mon Apr  2 12:09:48 2018
*************** get_available_features (unsigned int ecx
*** 303,308 ****
--- 303,342 ----
  {
    unsigned int features = 0;
  
+   /* Get XCR_XFEATURE_ENABLED_MASK register with xgetbv.  */
+ #define XCR_XFEATURE_ENABLED_MASK	0x0
+ #define XSTATE_FP			0x1
+ #define XSTATE_SSE			0x2
+ #define XSTATE_YMM			0x4
+ #define XSTATE_OPMASK			0x20
+ #define XSTATE_ZMM			0x40
+ #define XSTATE_HI_ZMM			0x80
+ 
+ #define XCR_AVX_ENABLED_MASK \
+   (XSTATE_SSE | XSTATE_YMM)
+ #define XCR_AVX512F_ENABLED_MASK \
+   (XSTATE_SSE | XSTATE_YMM | XSTATE_OPMASK | XSTATE_ZMM | XSTATE_HI_ZMM)
+ 
+   /* Check if AVX and AVX512 are usable.  */
+   int avx_usable = 0;
+   int avx512_usable = 0;
+   if ((ecx & bit_OSXSAVE))
+     {
+       /* Check if XMM, YMM, OPMASK, upper 256 bits of ZMM0-ZMM15 and
+          ZMM16-ZMM31 states are supported by OSXSAVE.  */
+       unsigned int xcrlow;
+       unsigned int xcrhigh;
+       asm (".byte 0x0f, 0x01, 0xd0"
+ 	   : "=a" (xcrlow), "=d" (xcrhigh)
+ 	   : "c" (XCR_XFEATURE_ENABLED_MASK));
+       if ((xcrlow & XCR_AVX_ENABLED_MASK) == XCR_AVX_ENABLED_MASK)
+ 	{
+ 	  avx_usable = 1;
+ 	  avx512_usable = ((xcrlow & XCR_AVX512F_ENABLED_MASK)
+ 			   == XCR_AVX512F_ENABLED_MASK);
+ 	}
+     }
+ 
    if (edx & bit_CMOV)
      features |= (1 << FEATURE_CMOV);
    if (edx & bit_MMX)
*************** get_available_features (unsigned int ecx
*** 325,334 ****
      features |= (1 << FEATURE_SSE4_1);
    if (ecx & bit_SSE4_2)
      features |= (1 << FEATURE_SSE4_2);
!   if (ecx & bit_AVX)
!     features |= (1 << FEATURE_AVX);
!   if (ecx & bit_FMA)
!     features |= (1 << FEATURE_FMA);
  
    /* Get Advanced Features at level 7 (eax = 7, ecx = 0). */
    if (max_cpuid_level >= 7)
--- 359,371 ----
      features |= (1 << FEATURE_SSE4_1);
    if (ecx & bit_SSE4_2)
      features |= (1 << FEATURE_SSE4_2);
!   if (avx_usable)
!     {
!       if (ecx & bit_AVX)
! 	features |= (1 << FEATURE_AVX);
!       if (ecx & bit_FMA)
! 	features |= (1 << FEATURE_FMA);
!     }
  
    /* Get Advanced Features at level 7 (eax = 7, ecx = 0). */
    if (max_cpuid_level >= 7)
*************** get_available_features (unsigned int ecx
*** 337,364 ****
        __cpuid_count (7, 0, eax, ebx, ecx, edx);
        if (ebx & bit_BMI)
          features |= (1 << FEATURE_BMI);
!       if (ebx & bit_AVX2)
! 	features |= (1 << FEATURE_AVX2);
        if (ebx & bit_BMI2)
          features |= (1 << FEATURE_BMI2);
!       if (ebx & bit_AVX512F)
! 	features |= (1 << FEATURE_AVX512F);
!       if (ebx & bit_AVX512VL)
! 	features |= (1 << FEATURE_AVX512VL);
!       if (ebx & bit_AVX512BW)
! 	features |= (1 << FEATURE_AVX512BW);
!       if (ebx & bit_AVX512DQ)
! 	features |= (1 << FEATURE_AVX512DQ);
!       if (ebx & bit_AVX512CD)
! 	features |= (1 << FEATURE_AVX512CD);
!       if (ebx & bit_AVX512PF)
! 	features |= (1 << FEATURE_AVX512PF);
!       if (ebx & bit_AVX512ER)
! 	features |= (1 << FEATURE_AVX512ER);
!       if (ebx & bit_AVX512IFMA)
! 	features |= (1 << FEATURE_AVX512IFMA);
!       if (ecx & bit_AVX512VBMI)
! 	features |= (1 << FEATURE_AVX512VBMI);
      }
  
    unsigned int ext_level;
--- 374,407 ----
        __cpuid_count (7, 0, eax, ebx, ecx, edx);
        if (ebx & bit_BMI)
          features |= (1 << FEATURE_BMI);
!       if (avx_usable)
! 	{
! 	  if (ebx & bit_AVX2)
! 	    features |= (1 << FEATURE_AVX2);
! 	}
        if (ebx & bit_BMI2)
          features |= (1 << FEATURE_BMI2);
!       if (avx512_usable)
! 	{
! 	  if (ebx & bit_AVX512F)
! 	    features |= (1 << FEATURE_AVX512F);
! 	  if (ebx & bit_AVX512VL)
! 	    features |= (1 << FEATURE_AVX512VL);
! 	  if (ebx & bit_AVX512BW)
! 	    features |= (1 << FEATURE_AVX512BW);
! 	  if (ebx & bit_AVX512DQ)
! 	    features |= (1 << FEATURE_AVX512DQ);
! 	  if (ebx & bit_AVX512CD)
! 	    features |= (1 << FEATURE_AVX512CD);
! 	  if (ebx & bit_AVX512PF)
! 	    features |= (1 << FEATURE_AVX512PF);
! 	  if (ebx & bit_AVX512ER)
! 	    features |= (1 << FEATURE_AVX512ER);
! 	  if (ebx & bit_AVX512IFMA)
! 	    features |= (1 << FEATURE_AVX512IFMA);
! 	  if (ecx & bit_AVX512VBMI)
! 	    features |= (1 << FEATURE_AVX512VBMI);
! 	}
      }
  
    unsigned int ext_level;
*************** get_available_features (unsigned int ecx
*** 372,381 ****
  
        if (ecx & bit_SSE4a)
  	features |= (1 << FEATURE_SSE4_A);
!       if (ecx & bit_FMA4)
! 	features |= (1 << FEATURE_FMA4);
!       if (ecx & bit_XOP)
! 	features |= (1 << FEATURE_XOP);
      }
      
    __cpu_model.__cpu_features[0] = features;
--- 415,427 ----
  
        if (ecx & bit_SSE4a)
  	features |= (1 << FEATURE_SSE4_A);
!       if (avx_usable)
! 	{
! 	  if (ecx & bit_FMA4)
! 	    features |= (1 << FEATURE_FMA4);
! 	  if (ecx & bit_XOP)
! 	    features |= (1 << FEATURE_XOP);
! 	}
      }
      
    __cpu_model.__cpu_features[0] = features;
diff -Nrcpad gcc-6.4.0/libgcc/config/i386/freebsd-unwind.h gcc-6.5.0/libgcc/config/i386/freebsd-unwind.h
*** gcc-6.4.0/libgcc/config/i386/freebsd-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/i386/freebsd-unwind.h	Sun Nov  5 19:33:44 2017
*************** see the files COPYING3 and COPYING.RUNTI
*** 28,34 ****
--- 28,37 ----
  
  #include <sys/types.h>
  #include <signal.h>
+ #include <unistd.h>
+ #include <sys/sysctl.h>
  #include <sys/ucontext.h>
+ #include <sys/user.h>
  #include <machine/sigframe.h>
  
  #define REG_NAME(reg)	sf_uc.uc_mcontext.mc_## reg
*************** see the files COPYING3 and COPYING.RUNTI
*** 36,41 ****
--- 39,76 ----
  #ifdef __x86_64__
  #define MD_FALLBACK_FRAME_STATE_FOR x86_64_freebsd_fallback_frame_state
  
+ #ifdef KERN_PROC_SIGTRAMP
+ /* FreeBSD past 9.3 provides a kern.proc.sigtramp.<pid> sysctl that
+    returns the location of the signal trampoline. Use this to find
+    out whether we're in a trampoline.
+ */
+ static int
+ x86_64_outside_sigtramp_range (unsigned char *pc)
+ {
+   static int sigtramp_range_determined = 0;
+   static unsigned char *sigtramp_start, *sigtramp_end;
+ 
+   if (sigtramp_range_determined == 0)
+     {
+       struct kinfo_sigtramp kst = {0};
+       size_t len = sizeof (kst);
+       int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_SIGTRAMP, getpid() };
+ 
+       sigtramp_range_determined = 1;
+       if (sysctl (mib, 4, &kst, &len, NULL, 0) == 0)
+       {
+         sigtramp_range_determined = 2;
+         sigtramp_start = kst.ksigtramp_start;
+         sigtramp_end   = kst.ksigtramp_end;
+       }
+     }
+   if (sigtramp_range_determined < 2)  /* sysctl failed if < 2 */
+     return 1;
+ 
+   return (pc < sigtramp_start || pc >= sigtramp_end);
+ }
+ #endif
+ 
  static _Unwind_Reason_Code
  x86_64_freebsd_fallback_frame_state
  (struct _Unwind_Context *context, _Unwind_FrameState *fs)
*************** x86_64_freebsd_fallback_frame_state
*** 43,48 ****
--- 78,84 ----
    struct sigframe *sf;
    long new_cfa;
  
+ #ifndef KERN_PROC_SIGTRAMP
    /* Prior to FreeBSD 9, the signal trampoline was located immediately
       before the ps_strings.  To support non-executable stacks on AMD64,
       the sigtramp was moved to a shared page for FreeBSD 9.  Unfortunately
*************** x86_64_freebsd_fallback_frame_state
*** 62,73 ****
          && *(unsigned int *)(context->ra +  8) == 0x01a1c0c7
          && *(unsigned int *)(context->ra + 12) == 0x050f0000 ))
      return _URC_END_OF_STACK;
  
    sf = (struct sigframe *) context->cfa;
    new_cfa = sf->REG_NAME(rsp);
    fs->regs.cfa_how = CFA_REG_OFFSET;
!   /* Register 7 is rsp  */
!   fs->regs.cfa_reg = 7;
    fs->regs.cfa_offset = new_cfa - (long) context->cfa;
  
    /* The SVR4 register numbering macros aren't usable in libgcc.  */
--- 98,112 ----
          && *(unsigned int *)(context->ra +  8) == 0x01a1c0c7
          && *(unsigned int *)(context->ra + 12) == 0x050f0000 ))
      return _URC_END_OF_STACK;
+ #else
+   if (x86_64_outside_sigtramp_range(context->ra))
+     return _URC_END_OF_STACK;
+ #endif
  
    sf = (struct sigframe *) context->cfa;
    new_cfa = sf->REG_NAME(rsp);
    fs->regs.cfa_how = CFA_REG_OFFSET;
!   fs->regs.cfa_reg =  __LIBGCC_STACK_POINTER_REGNUM__;
    fs->regs.cfa_offset = new_cfa - (long) context->cfa;
  
    /* The SVR4 register numbering macros aren't usable in libgcc.  */
diff -Nrcpad gcc-6.4.0/libgcc/config/i386/linux-unwind.h gcc-6.5.0/libgcc/config/i386/linux-unwind.h
*** gcc-6.4.0/libgcc/config/i386/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/i386/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** x86_64_fallback_frame_state (struct _Unw
*** 58,64 ****
    if (*(unsigned char *)(pc+0) == 0x48
        && *(unsigned long long *)(pc+1) == RT_SIGRETURN_SYSCALL)
      {
!       struct ucontext *uc_ = context->cfa;
        /* The void * cast is necessary to avoid an aliasing warning.
           The aliasing warning is correct, but should not be a problem
           because it does not alias anything.  */
--- 58,64 ----
    if (*(unsigned char *)(pc+0) == 0x48
        && *(unsigned long long *)(pc+1) == RT_SIGRETURN_SYSCALL)
      {
!       ucontext_t *uc_ = context->cfa;
        /* The void * cast is necessary to avoid an aliasing warning.
           The aliasing warning is correct, but should not be a problem
           because it does not alias anything.  */
*************** x86_fallback_frame_state (struct _Unwind
*** 138,144 ****
  	siginfo_t *pinfo;
  	void *puc;
  	siginfo_t info;
! 	struct ucontext uc;
        } *rt_ = context->cfa;
        /* The void * cast is necessary to avoid an aliasing warning.
           The aliasing warning is correct, but should not be a problem
--- 138,144 ----
  	siginfo_t *pinfo;
  	void *puc;
  	siginfo_t info;
! 	ucontext_t uc;
        } *rt_ = context->cfa;
        /* The void * cast is necessary to avoid an aliasing warning.
           The aliasing warning is correct, but should not be a problem
diff -Nrcpad gcc-6.4.0/libgcc/config/libbid/ChangeLog gcc-6.5.0/libgcc/config/libbid/ChangeLog
*** gcc-6.4.0/libgcc/config/libbid/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libgcc/config/libbid/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libgcc/config/m68k/linux-unwind.h gcc-6.5.0/libgcc/config/m68k/linux-unwind.h
*** gcc-6.4.0/libgcc/config/m68k/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/m68k/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** see the files COPYING3 and COPYING.RUNTI
*** 33,39 ****
  /* <sys/ucontext.h> is unfortunately broken right now.  */
  struct uw_ucontext {
  	unsigned long	  uc_flags;
! 	struct ucontext  *uc_link;
  	stack_t		  uc_stack;
  	mcontext_t	  uc_mcontext;
  	unsigned long	  uc_filler[80];
--- 33,39 ----
  /* <sys/ucontext.h> is unfortunately broken right now.  */
  struct uw_ucontext {
  	unsigned long	  uc_flags;
! 	ucontext_t	 *uc_link;
  	stack_t		  uc_stack;
  	mcontext_t	  uc_mcontext;
  	unsigned long	  uc_filler[80];
diff -Nrcpad gcc-6.4.0/libgcc/config/nios2/linux-unwind.h gcc-6.5.0/libgcc/config/nios2/linux-unwind.h
*** gcc-6.4.0/libgcc/config/nios2/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/nios2/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** struct nios2_mcontext {
*** 38,44 ****
  
  struct nios2_ucontext {
    unsigned long uc_flags;
!   struct ucontext *uc_link;
    stack_t uc_stack;
    struct nios2_mcontext uc_mcontext;
    sigset_t uc_sigmask;	/* mask last for extensibility */
--- 38,44 ----
  
  struct nios2_ucontext {
    unsigned long uc_flags;
!   ucontext_t *uc_link;
    stack_t uc_stack;
    struct nios2_mcontext uc_mcontext;
    sigset_t uc_sigmask;	/* mask last for extensibility */
diff -Nrcpad gcc-6.4.0/libgcc/config/pa/fptr.c gcc-6.5.0/libgcc/config/pa/fptr.c
*** gcc-6.4.0/libgcc/config/pa/fptr.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/pa/fptr.c	Sun Mar 11 14:38:50 2018
*************** typedef int (*fptr_t) (void);
*** 52,57 ****
--- 52,67 ----
  typedef int (*fixup_t) (struct link_map *, unsigned int);
  extern unsigned int _GLOBAL_OFFSET_TABLE_;
  
+ static inline int
+ _dl_read_access_allowed (unsigned int *addr)
+ {
+   int result;
+ 
+   asm ("proberi (%1),3,%0" : "=r" (result) : "r" (addr) : );
+ 
+   return result;
+ }
+ 
  /* __canonicalize_funcptr_for_compare must be hidden so that it is not
     placed in the dynamic symbol table.  Like millicode functions, it
     must be linked into all binaries in order access the got table of 
*************** __canonicalize_funcptr_for_compare (fptr
*** 82,87 ****
--- 92,107 ----
       The second word in the plabel contains the relocation offset for the
       function.  */
    plabel = (unsigned int *) ((unsigned int) fptr & ~3);
+   if (!_dl_read_access_allowed (plabel))
+     return (unsigned int) fptr;
+ 
+   /* Load first word of candidate descriptor.  It should be a pointer
+      with word alignment and point to memory that can be read.  */
+   got = (unsigned int *) plabel[0];
+   if (((unsigned int) got & 3) != 0
+       || !_dl_read_access_allowed (got))
+     return (unsigned int) fptr;
+ 
    got = (unsigned int *) (plabel[0] + GOT_FROM_PLT_STUB);
  
    /* Return the address of the function if the plabel has been resolved.  */
diff -Nrcpad gcc-6.4.0/libgcc/config/pa/linux-atomic.c gcc-6.5.0/libgcc/config/pa/linux-atomic.c
*** gcc-6.4.0/libgcc/config/pa/linux-atomic.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/pa/linux-atomic.c	Fri Aug 17 23:00:34 2018
*************** see the files COPYING3 and COPYING.RUNTI
*** 28,41 ****
  #define EBUSY   16
  #define ENOSYS 251 
  
! /* All PA-RISC implementations supported by linux have strongly
!    ordered loads and stores.  Only cache flushes and purges can be
!    delayed.  The data cache implementations are all globally
!    coherent.  Thus, there is no need to synchonize memory accesses.
! 
!    GCC automatically issues a asm memory barrier when it encounters
!    a __sync_synchronize builtin.  Thus, we do not need to define this
!    builtin.
  
     We implement byte, short and int versions of each atomic operation
     using the kernel helper defined below.  There is no support for
--- 28,36 ----
  #define EBUSY   16
  #define ENOSYS 251 
  
! /* PA-RISC 2.0 supports out-of-order execution for loads and stores.
!    Thus, we need to synchonize memory accesses.  For more info, see:
!    "Advanced Performance Features of the 64-bit PA-8000" by Doug Hunt.
  
     We implement byte, short and int versions of each atomic operation
     using the kernel helper defined below.  There is no support for
*************** __kernel_cmpxchg2 (void *mem, const void
*** 119,125 ****
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);			\
        newval = PFX_OP (tmp INF_OP val);					\
        failure = __kernel_cmpxchg2 (ptr, &tmp, &newval, INDEX);		\
      } while (failure != 0);						\
--- 114,120 ----
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_RELAXED);			\
        newval = PFX_OP (tmp INF_OP val);					\
        failure = __kernel_cmpxchg2 (ptr, &tmp, &newval, INDEX);		\
      } while (failure != 0);						\
*************** FETCH_AND_OP_2 (nand, ~, &, signed char,
*** 156,162 ****
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);			\
        newval = PFX_OP (tmp INF_OP val);					\
        failure = __kernel_cmpxchg2 (ptr, &tmp, &newval, INDEX);		\
      } while (failure != 0);						\
--- 151,157 ----
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_RELAXED);			\
        newval = PFX_OP (tmp INF_OP val);					\
        failure = __kernel_cmpxchg2 (ptr, &tmp, &newval, INDEX);		\
      } while (failure != 0);						\
*************** OP_AND_FETCH_2 (nand, ~, &, signed char,
*** 193,199 ****
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);			\
        failure = __kernel_cmpxchg (ptr, tmp, PFX_OP (tmp INF_OP val));	\
      } while (failure != 0);						\
  									\
--- 188,194 ----
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_RELAXED);			\
        failure = __kernel_cmpxchg (ptr, tmp, PFX_OP (tmp INF_OP val));	\
      } while (failure != 0);						\
  									\
*************** FETCH_AND_OP_WORD (nand, ~, &)
*** 215,221 ****
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);			\
        failure = __kernel_cmpxchg (ptr, tmp, PFX_OP (tmp INF_OP val));	\
      } while (failure != 0);						\
  									\
--- 210,216 ----
      long failure;							\
  									\
      do {								\
!       tmp = __atomic_load_n (ptr, __ATOMIC_RELAXED);			\
        failure = __kernel_cmpxchg (ptr, tmp, PFX_OP (tmp INF_OP val));	\
      } while (failure != 0);						\
  									\
*************** typedef unsigned char bool;
*** 241,247 ****
  									\
      while (1)								\
        {									\
! 	actual_oldval = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);	\
  									\
  	if (__builtin_expect (oldval != actual_oldval, 0))		\
  	  return actual_oldval;						\
--- 236,242 ----
  									\
      while (1)								\
        {									\
! 	actual_oldval = __atomic_load_n (ptr, __ATOMIC_RELAXED);	\
  									\
  	if (__builtin_expect (oldval != actual_oldval, 0))		\
  	  return actual_oldval;						\
*************** __sync_val_compare_and_swap_4 (int *ptr,
*** 273,279 ****
      
    while (1)
      {
!       actual_oldval = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);
  
        if (__builtin_expect (oldval != actual_oldval, 0))
  	return actual_oldval;
--- 268,274 ----
      
    while (1)
      {
!       actual_oldval = __atomic_load_n (ptr, __ATOMIC_RELAXED);
  
        if (__builtin_expect (oldval != actual_oldval, 0))
  	return actual_oldval;
*************** TYPE HIDDEN								\
*** 300,306 ****
      long failure;							\
  									\
      do {								\
!       oldval = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);			\
        failure = __kernel_cmpxchg2 (ptr, &oldval, &val, INDEX);		\
      } while (failure != 0);						\
  									\
--- 295,301 ----
      long failure;							\
  									\
      do {								\
!       oldval = __atomic_load_n (ptr, __ATOMIC_RELAXED);			\
        failure = __kernel_cmpxchg2 (ptr, &oldval, &val, INDEX);		\
      } while (failure != 0);						\
  									\
*************** __sync_lock_test_and_set_4 (int *ptr, in
*** 318,355 ****
    int oldval;
  
    do {
!     oldval = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);
      failure = __kernel_cmpxchg (ptr, oldval, val);
    } while (failure != 0);
  
    return oldval;
  }
  
! #define SYNC_LOCK_RELEASE_2(TYPE, WIDTH, INDEX)			\
    void HIDDEN							\
    __sync_lock_release_##WIDTH (TYPE *ptr)			\
    {								\
!     TYPE oldval, zero = 0;					\
!     long failure;						\
! 								\
!     do {							\
!       oldval = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);		\
!       failure = __kernel_cmpxchg2 (ptr, &oldval, &zero, INDEX);	\
!     } while (failure != 0);					\
    }
  
! SYNC_LOCK_RELEASE_2 (long long, 8, 3)
! SYNC_LOCK_RELEASE_2 (short, 2, 1)
! SYNC_LOCK_RELEASE_2 (signed char, 1, 0)
! 
! void HIDDEN
! __sync_lock_release_4 (int *ptr)
! {
!   long failure;
!   int oldval;
! 
!   do {
!     oldval = __atomic_load_n (ptr, __ATOMIC_SEQ_CST);
!     failure = __kernel_cmpxchg (ptr, oldval, 0);
!   } while (failure != 0);
! }
--- 313,343 ----
    int oldval;
  
    do {
!     oldval = __atomic_load_n (ptr, __ATOMIC_RELAXED);
      failure = __kernel_cmpxchg (ptr, oldval, val);
    } while (failure != 0);
  
    return oldval;
  }
  
! void HIDDEN
! __sync_lock_release_8 (long long *ptr)
! {
!   /* All accesses must be complete before we release the lock.  */
!   __sync_synchronize ();
!   *(double *)ptr = 0;
! }
! 
! #define SYNC_LOCK_RELEASE_1(TYPE, WIDTH)			\
    void HIDDEN							\
    __sync_lock_release_##WIDTH (TYPE *ptr)			\
    {								\
!     /* All accesses must be complete before we release		\
!        the lock.  */						\
!     __sync_synchronize ();					\
!     *ptr = 0;							\
    }
  
! SYNC_LOCK_RELEASE_1 (int, 4)
! SYNC_LOCK_RELEASE_1 (short, 2)
! SYNC_LOCK_RELEASE_1 (signed char, 1)
diff -Nrcpad gcc-6.4.0/libgcc/config/pa/linux-unwind.h gcc-6.5.0/libgcc/config/pa/linux-unwind.h
*** gcc-6.4.0/libgcc/config/pa/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/pa/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** pa32_fallback_frame_state (struct _Unwin
*** 80,86 ****
    struct sigcontext *sc;
    struct rt_sigframe {
      siginfo_t info;
!     struct ucontext uc;
    } *frame;
  
    /* rt_sigreturn trampoline:
--- 80,86 ----
    struct sigcontext *sc;
    struct rt_sigframe {
      siginfo_t info;
!     ucontext_t uc;
    } *frame;
  
    /* rt_sigreturn trampoline:
diff -Nrcpad gcc-6.4.0/libgcc/config/rs6000/float128-ifunc.c gcc-6.5.0/libgcc/config/rs6000/float128-ifunc.c
*** gcc-6.4.0/libgcc/config/rs6000/float128-ifunc.c	Thu Jan 21 17:52:33 2016
--- gcc-6.5.0/libgcc/config/rs6000/float128-ifunc.c	Thu Jul 20 14:34:01 2017
***************
*** 45,91 ****
  #error "This module must not be compiled with IEEE 128-bit hardware support"
  #endif
  
! #include <sys/auxv.h>
! 
! /* Use the namespace clean version of getauxval.  However, not all versions of
!    sys/auxv.h declare it, so declare it here.  This code is intended to be
!    temporary until a suitable version of __builtin_cpu_supports is added that
!    allows us to tell quickly if the machine supports IEEE 128-bit hardware.  */
! extern unsigned long __getauxval (unsigned long);
! 
! static int
! have_ieee_hw_p (void)
! {
!   static int ieee_hw_p = -1;
! 
!   if (ieee_hw_p < 0)
!     {
!       char *p = (char *) __getauxval (AT_PLATFORM);
! 
!       ieee_hw_p = 0;
! 
!       /* Don't use atoi/strtol/strncmp/etc.  These may require the normal
! 	 environment to be setup to set errno to 0, and the ifunc resolvers run
! 	 before the whole glibc environment is initialized.  */
!       if (p && p[0] == 'p' && p[1] == 'o' && p[2] == 'w' && p[3] == 'e'
! 	  && p[4] == 'r')
! 	{
! 	  long n = 0;
! 	  char ch;
! 
! 	  p += 5;
! 	  while ((ch = *p++) >= '0' && (ch <= '9'))
! 	    n = (n * 10) + (ch - '0');
! 
! 	  if (n >= 9)
! 	    ieee_hw_p = 1;
! 	}
!     }
! 
!   return ieee_hw_p;
! }
! 
! #define SW_OR_HW(SW, HW) (have_ieee_hw_p () ? HW : SW)
  
  /* Resolvers.  */
  
--- 45,51 ----
  #error "This module must not be compiled with IEEE 128-bit hardware support"
  #endif
  
! #define SW_OR_HW(SW, HW) (__builtin_cpu_supports ("ieee128") ? HW : SW)
  
  /* Resolvers.  */
  
diff -Nrcpad gcc-6.4.0/libgcc/config/sh/linux-unwind.h gcc-6.5.0/libgcc/config/sh/linux-unwind.h
*** gcc-6.4.0/libgcc/config/sh/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/sh/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** sh_fallback_frame_state (struct _Unwind_
*** 180,186 ****
      {
        struct rt_sigframe {
  	siginfo_t info;
! 	struct ucontext uc;
        } *rt_ = context->cfa;
        /* The void * cast is necessary to avoid an aliasing warning.
           The aliasing warning is correct, but should not be a problem
--- 180,186 ----
      {
        struct rt_sigframe {
  	siginfo_t info;
! 	ucontext_t uc;
        } *rt_ = context->cfa;
        /* The void * cast is necessary to avoid an aliasing warning.
           The aliasing warning is correct, but should not be a problem
diff -Nrcpad gcc-6.4.0/libgcc/config/sol2/crtpg.c gcc-6.5.0/libgcc/config/sol2/crtpg.c
*** gcc-6.4.0/libgcc/config/sol2/crtpg.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/sol2/crtpg.c	Tue Nov 21 09:41:34 2017
*************** extern char _start[], _etext[];
*** 31,41 ****
  
  int __start_crt_compiler (int, char **);
  
! /* Since Solaris 11.x and Solaris 12, the system-provided CRTs provide a
!    hook to invoke initialization code early during process startup.
!    __start_crt_compiler is documented in crt1.o(5).  We use it to perform
!    initialization for profiling as a substitute for the earlier separate
!    gcrt1.o.  */
  
  int
  __start_crt_compiler (int argc __attribute__ ((unused)),
--- 31,40 ----
  
  int __start_crt_compiler (int, char **);
  
! /* Since Solaris 11.4, the system-provided CRTs provide a hook to invoke
!    initialization code early during process startup.  __start_crt_compiler
!    is documented in crt1.o(5).  We use it to perform initialization for
!    profiling as a substitute for the earlier separate gcrt1.o.  */
  
  int
  __start_crt_compiler (int argc __attribute__ ((unused)),
diff -Nrcpad gcc-6.4.0/libgcc/config/tilepro/linux-unwind.h gcc-6.5.0/libgcc/config/tilepro/linux-unwind.h
*** gcc-6.4.0/libgcc/config/tilepro/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/tilepro/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** tile_fallback_frame_state (struct _Unwin
*** 61,67 ****
    struct rt_sigframe {
      unsigned char save_area[C_ABI_SAVE_AREA_SIZE];
      siginfo_t info;
!     struct ucontext uc;
    } *rt_;
  
    /* Return if this is not a signal handler.  */
--- 61,67 ----
    struct rt_sigframe {
      unsigned char save_area[C_ABI_SAVE_AREA_SIZE];
      siginfo_t info;
!     ucontext_t uc;
    } *rt_;
  
    /* Return if this is not a signal handler.  */
diff -Nrcpad gcc-6.4.0/libgcc/config/xtensa/ieee754-df.S gcc-6.5.0/libgcc/config/xtensa/ieee754-df.S
*** gcc-6.4.0/libgcc/config/xtensa/ieee754-df.S	Wed Feb 17 20:21:48 2016
--- gcc-6.5.0/libgcc/config/xtensa/ieee754-df.S	Tue Feb 20 21:13:03 2018
*************** __negdf2:
*** 55,60 ****
--- 55,61 ----
  
  #ifdef L_addsubdf3
  
+ 	.literal_position
  	/* Addition */
  __adddf3_aux:
  	
*************** __adddf3_aux:
*** 64,80 ****
  
  .Ladd_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	yh, a6, 1f
  	/* If x is a NaN, return it.  Otherwise, return y.  */
  	slli	a7, xh, 12
  	or	a7, a7, xl
! 	beqz	a7, .Ladd_ynan_or_inf
! 1:	leaf_return
  
  .Ladd_ynan_or_inf:
  	/* Return y.  */
  	mov	xh, yh
  	mov	xl, yl
  	leaf_return
  
  .Ladd_opposite_signs:
--- 65,90 ----
  
  .Ladd_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	yh, a6, .Ladd_return_nan_or_inf
  	/* If x is a NaN, return it.  Otherwise, return y.  */
  	slli	a7, xh, 12
  	or	a7, a7, xl
! 	bnez	a7, .Ladd_return_nan
  
  .Ladd_ynan_or_inf:
  	/* Return y.  */
  	mov	xh, yh
  	mov	xl, yl
+ 
+ .Ladd_return_nan_or_inf:
+ 	slli	a7, xh, 12
+ 	or	a7, a7, xl
+ 	bnez	a7, .Ladd_return_nan
+ 	leaf_return
+ 
+ .Ladd_return_nan:
+ 	movi	a4, 0x80000	/* make it a quiet NaN */
+ 	or	xh, xh, a4
  	leaf_return
  
  .Ladd_opposite_signs:
*************** __subdf3_aux:
*** 319,335 ****
  
  .Lsub_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	yh, a6, 1f
  	/* Both x and y are either NaN or Inf, so the result is NaN.  */
  	movi	a4, 0x80000	/* make it a quiet NaN */
  	or	xh, xh, a4
! 1:	leaf_return
  
  .Lsub_ynan_or_inf:
  	/* Negate y and return it.  */
  	slli	a7, a6, 11
  	xor	xh, yh, a7
  	mov	xl, yl
  	leaf_return
  
  .Lsub_opposite_signs:
--- 329,352 ----
  
  .Lsub_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	yh, a6, .Lsub_return_nan_or_inf
! 
! .Lsub_return_nan:
  	/* Both x and y are either NaN or Inf, so the result is NaN.  */
  	movi	a4, 0x80000	/* make it a quiet NaN */
  	or	xh, xh, a4
! 	leaf_return
  
  .Lsub_ynan_or_inf:
  	/* Negate y and return it.  */
  	slli	a7, a6, 11
  	xor	xh, yh, a7
  	mov	xl, yl
+ 
+ .Lsub_return_nan_or_inf:
+ 	slli	a7, xh, 12
+ 	or	a7, a7, xl
+ 	bnez	a7, .Lsub_return_nan
  	leaf_return
  
  .Lsub_opposite_signs:
*************** __muldf3_aux:
*** 692,701 ****
  	/* If y is zero, return NaN.  */
  	bnez	yl, 1f
  	slli	a8, yh, 1
! 	bnez	a8, 1f
! 	movi	a4, 0x80000	/* make it a quiet NaN */
! 	or	xh, xh, a4
! 	j	.Lmul_done
  1:
  	/* If y is NaN, return y.  */
  	bnall	yh, a6, .Lmul_returnx
--- 709,715 ----
  	/* If y is zero, return NaN.  */
  	bnez	yl, 1f
  	slli	a8, yh, 1
! 	beqz	a8, .Lmul_return_nan
  1:
  	/* If y is NaN, return y.  */
  	bnall	yh, a6, .Lmul_returnx
*************** __muldf3_aux:
*** 708,713 ****
--- 722,730 ----
  	mov	xl, yl
  
  .Lmul_returnx:
+ 	slli	a8, xh, 12
+ 	or	a8, a8, xl
+ 	bnez	a8, .Lmul_return_nan
  	/* Set the sign bit and return.  */
  	extui	a7, a7, 31, 1
  	slli	xh, xh, 1
*************** __muldf3_aux:
*** 720,727 ****
  	bnez	xl, .Lmul_returny
  	slli	a8, xh, 1
  	bnez	a8, .Lmul_returny
! 	movi	a7, 0x80000	/* make it a quiet NaN */
! 	or	xh, yh, a7
  	j	.Lmul_done
  
  	.align	4
--- 737,747 ----
  	bnez	xl, .Lmul_returny
  	slli	a8, xh, 1
  	bnez	a8, .Lmul_returny
! 	mov	xh, yh
! 
! .Lmul_return_nan:
! 	movi	a4, 0x80000	/* make it a quiet NaN */
! 	or	xh, xh, a4
  	j	.Lmul_done
  
  	.align	4
*************** __divdf3_aux:
*** 1320,1329 ****
  	slli	a7, a7, 31
  	xor	xh, xh, a7
  	/* If y is NaN or Inf, return NaN.  */
! 	bnall	yh, a6, 1f
! 	movi	a4, 0x80000	/* make it a quiet NaN */
! 	or	xh, xh, a4
! 1:	leaf_return
  
  .Ldiv_ynan_or_inf:
  	/* If y is Infinity, return zero.  */
--- 1340,1350 ----
  	slli	a7, a7, 31
  	xor	xh, xh, a7
  	/* If y is NaN or Inf, return NaN.  */
! 	ball	yh, a6, .Ldiv_return_nan
! 	slli	a8, xh, 12
! 	or	a8, a8, xl
! 	bnez	a8, .Ldiv_return_nan
! 	leaf_return
  
  .Ldiv_ynan_or_inf:
  	/* If y is Infinity, return zero.  */
*************** __divdf3_aux:
*** 1333,1338 ****
--- 1354,1363 ----
  	/* y is NaN; return it.  */
  	mov	xh, yh
  	mov	xl, yl
+ 
+ .Ldiv_return_nan:
+ 	movi	a4, 0x80000	/* make it a quiet NaN */
+ 	or	xh, xh, a4
  	leaf_return
  
  .Ldiv_highequal1:
diff -Nrcpad gcc-6.4.0/libgcc/config/xtensa/ieee754-sf.S gcc-6.5.0/libgcc/config/xtensa/ieee754-sf.S
*** gcc-6.4.0/libgcc/config/xtensa/ieee754-sf.S	Wed Feb 17 20:21:48 2016
--- gcc-6.5.0/libgcc/config/xtensa/ieee754-sf.S	Tue Feb 20 21:13:03 2018
*************** __negsf2:
*** 55,60 ****
--- 55,61 ----
  
  #ifdef L_addsubsf3
  
+ 	.literal_position
  	/* Addition */
  __addsf3_aux:
  
*************** __addsf3_aux:
*** 64,78 ****
  
  .Ladd_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	a3, a6, 1f
  	/* If x is a NaN, return it.  Otherwise, return y.  */
  	slli	a7, a2, 9
! 	beqz	a7, .Ladd_ynan_or_inf
! 1:	leaf_return
  
  .Ladd_ynan_or_inf:
  	/* Return y.  */
  	mov	a2, a3
  	leaf_return
  
  .Ladd_opposite_signs:
--- 65,87 ----
  
  .Ladd_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	a3, a6, .Ladd_return_nan_or_inf
  	/* If x is a NaN, return it.  Otherwise, return y.  */
  	slli	a7, a2, 9
! 	bnez	a7, .Ladd_return_nan
  
  .Ladd_ynan_or_inf:
  	/* Return y.  */
  	mov	a2, a3
+ 
+ .Ladd_return_nan_or_inf:
+ 	slli	a7, a2, 9
+ 	bnez	a7, .Ladd_return_nan
+ 	leaf_return
+ 
+ .Ladd_return_nan:
+ 	movi	a6, 0x400000	/* make it a quiet NaN */
+ 	or	a2, a2, a6
  	leaf_return
  
  .Ladd_opposite_signs:
*************** __subsf3_aux:
*** 265,280 ****
  
  .Lsub_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	a3, a6, 1f
  	/* Both x and y are either NaN or Inf, so the result is NaN.  */
  	movi	a4, 0x400000	/* make it a quiet NaN */
  	or	a2, a2, a4
! 1:	leaf_return
  
  .Lsub_ynan_or_inf:
  	/* Negate y and return it.  */
  	slli	a7, a6, 8
  	xor	a2, a3, a7
  	leaf_return
  
  .Lsub_opposite_signs:
--- 274,295 ----
  
  .Lsub_xnan_or_inf:
  	/* If y is neither Infinity nor NaN, return x.  */
! 	bnall	a3, a6, .Lsub_return_nan_or_inf
  	/* Both x and y are either NaN or Inf, so the result is NaN.  */
+ 
+ .Lsub_return_nan:
  	movi	a4, 0x400000	/* make it a quiet NaN */
  	or	a2, a2, a4
! 	leaf_return
  
  .Lsub_ynan_or_inf:
  	/* Negate y and return it.  */
  	slli	a7, a6, 8
  	xor	a2, a3, a7
+ 
+ .Lsub_return_nan_or_inf:
+ 	slli	a7, a2, 9
+ 	bnez	a7, .Lsub_return_nan
  	leaf_return
  
  .Lsub_opposite_signs:
*************** __mulsf3_aux:
*** 537,547 ****
  .Lmul_xnan_or_inf:
  	/* If y is zero, return NaN.  */
  	slli	a8, a3, 1
! 	bnez	a8, 1f
! 	movi	a4, 0x400000	/* make it a quiet NaN */
! 	or	a2, a2, a4
! 	j	.Lmul_done
! 1:
  	/* If y is NaN, return y.  */
  	bnall	a3, a6, .Lmul_returnx
  	slli	a8, a3, 9
--- 552,558 ----
  .Lmul_xnan_or_inf:
  	/* If y is zero, return NaN.  */
  	slli	a8, a3, 1
! 	beqz	a8, .Lmul_return_nan
  	/* If y is NaN, return y.  */
  	bnall	a3, a6, .Lmul_returnx
  	slli	a8, a3, 9
*************** __mulsf3_aux:
*** 551,556 ****
--- 562,569 ----
  	mov	a2, a3
  
  .Lmul_returnx:
+ 	slli	a8, a2, 9
+ 	bnez	a8, .Lmul_return_nan
  	/* Set the sign bit and return.  */
  	extui	a7, a7, 31, 1
  	slli	a2, a2, 1
*************** __mulsf3_aux:
*** 562,569 ****
  	/* If x is zero, return NaN.  */
  	slli	a8, a2, 1
  	bnez	a8, .Lmul_returny
! 	movi	a7, 0x400000	/* make it a quiet NaN */
! 	or	a2, a3, a7
  	j	.Lmul_done
  
  	.align	4
--- 575,585 ----
  	/* If x is zero, return NaN.  */
  	slli	a8, a2, 1
  	bnez	a8, .Lmul_returny
! 	mov	a2, a3
! 
! .Lmul_return_nan:
! 	movi	a4, 0x400000	/* make it a quiet NaN */
! 	or	a2, a2, a4
  	j	.Lmul_done
  
  	.align	4
*************** __divsf3_aux:
*** 951,960 ****
  	slli	a7, a7, 31
  	xor	a2, a2, a7
  	/* If y is NaN or Inf, return NaN.  */
! 	bnall	a3, a6, 1f
! 	movi	a4, 0x400000	/* make it a quiet NaN */
! 	or	a2, a2, a4
! 1:	leaf_return
  
  .Ldiv_ynan_or_inf:
  	/* If y is Infinity, return zero.  */
--- 967,976 ----
  	slli	a7, a7, 31
  	xor	a2, a2, a7
  	/* If y is NaN or Inf, return NaN.  */
! 	ball	a3, a6, .Ldiv_return_nan
! 	slli	a7, a2, 9
! 	bnez	a7, .Ldiv_return_nan
! 	leaf_return
  
  .Ldiv_ynan_or_inf:
  	/* If y is Infinity, return zero.  */
*************** __divsf3_aux:
*** 962,967 ****
--- 978,987 ----
  	beqz	a8, .Ldiv_return_zero
  	/* y is NaN; return it.  */
  	mov	a2, a3
+ 
+ .Ldiv_return_nan:
+ 	movi	a4, 0x400000	/* make it a quiet NaN */
+ 	or	a2, a2, a4
  	leaf_return
  
  	.align	4
diff -Nrcpad gcc-6.4.0/libgcc/config/xtensa/linux-unwind.h gcc-6.5.0/libgcc/config/xtensa/linux-unwind.h
*** gcc-6.4.0/libgcc/config/xtensa/linux-unwind.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgcc/config/xtensa/linux-unwind.h	Tue Jul  4 10:23:57 2017
*************** xtensa_fallback_frame_state (struct _Unw
*** 67,73 ****
  
    struct rt_sigframe {
      siginfo_t info;
!     struct ucontext uc;
    } *rt_;
  
    /* movi a2, __NR_rt_sigreturn; syscall */
--- 67,73 ----
  
    struct rt_sigframe {
      siginfo_t info;
!     ucontext_t uc;
    } *rt_;
  
    /* movi a2, __NR_rt_sigreturn; syscall */
diff -Nrcpad gcc-6.4.0/libgcc/config.host gcc-6.5.0/libgcc/config.host
*** gcc-6.4.0/libgcc/config.host	Wed May 10 20:44:08 2017
--- gcc-6.5.0/libgcc/config.host	Tue Nov 21 09:41:34 2017
*************** case ${host} in
*** 277,283 ****
    tmake_file="$tmake_file $cpu_type/t-sol2"
    extra_parts="gmon.o crtbegin.o crtend.o"
    if test "${libgcc_cv_solaris_crts}" = yes; then
!     # Solaris 11.x and 12 provide crt1.o, crti.o, and crtn.o as part of the
      # base system.  crtp.o and crtpg.o implement the compiler-dependent parts.
      extra_parts="$extra_parts crtp.o crtpg.o"
      # If the Solaris CRTs are present, both ld and gld will have PIE support.
--- 277,283 ----
    tmake_file="$tmake_file $cpu_type/t-sol2"
    extra_parts="gmon.o crtbegin.o crtend.o"
    if test "${libgcc_cv_solaris_crts}" = yes; then
!     # Solaris 11.4 provides crt1.o, crti.o, and crtn.o as part of the
      # base system.  crtp.o and crtpg.o implement the compiler-dependent parts.
      extra_parts="$extra_parts crtp.o crtpg.o"
      # If the Solaris CRTs are present, both ld and gld will have PIE support.
diff -Nrcpad gcc-6.4.0/libgcc/configure gcc-6.5.0/libgcc/configure
*** gcc-6.4.0/libgcc/configure	Mon Apr 11 19:45:35 2016
--- gcc-6.5.0/libgcc/configure	Tue Nov 21 09:41:34 2017
*************** esac
*** 4667,4673 ****
  
  case ${host} in
  *-*-solaris2*)
!   # Check for system-provided CRTs on Solaris 11.x and Solaris 12.
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking system-provided CRTs on Solaris" >&5
  $as_echo_n "checking system-provided CRTs on Solaris... " >&6; }
  if test "${libgcc_cv_solaris_crts+set}" = set; then :
--- 4667,4673 ----
  
  case ${host} in
  *-*-solaris2*)
!   # Check for system-provided CRTs on Solaris 11.4.
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking system-provided CRTs on Solaris" >&5
  $as_echo_n "checking system-provided CRTs on Solaris... " >&6; }
  if test "${libgcc_cv_solaris_crts+set}" = set; then :
diff -Nrcpad gcc-6.4.0/libgcc/configure.ac gcc-6.5.0/libgcc/configure.ac
*** gcc-6.4.0/libgcc/configure.ac	Mon Apr 11 19:45:35 2016
--- gcc-6.5.0/libgcc/configure.ac	Tue Nov 21 09:41:34 2017
*************** esac
*** 294,300 ****
  
  case ${host} in
  *-*-solaris2*)
!   # Check for system-provided CRTs on Solaris 11.x and Solaris 12.
    AC_CACHE_CHECK([system-provided CRTs on Solaris],
      		 [libgcc_cv_solaris_crts],
      [libgcc_cv_solaris_crts=no
--- 294,300 ----
  
  case ${host} in
  *-*-solaris2*)
!   # Check for system-provided CRTs on Solaris 11.4.
    AC_CACHE_CHECK([system-provided CRTs on Solaris],
      		 [libgcc_cv_solaris_crts],
      [libgcc_cv_solaris_crts=no
diff -Nrcpad gcc-6.4.0/libgcc/libgcc2.c gcc-6.5.0/libgcc/libgcc2.c
*** gcc-6.4.0/libgcc/libgcc2.c	Wed Sep 28 16:11:44 2016
--- gcc-6.5.0/libgcc/libgcc2.c	Fri Oct 13 20:14:34 2017
*************** __mulvDI3 (DWtype u, DWtype v)
*** 375,381 ****
  		}
  	      else
  		{
! 		  if (uu.s.high == (Wtype) -1 && vv.s.high == (Wtype) - 1)
  		    {
  		      DWunion ww = {.ll = (UDWtype) (UWtype) uu.s.low
  				    * (UDWtype) (UWtype) vv.s.low};
--- 375,382 ----
  		}
  	      else
  		{
! 		  if ((uu.s.high & vv.s.high) == (Wtype) -1
! 		      && (uu.s.low | vv.s.low) != 0)
  		    {
  		      DWunion ww = {.ll = (UDWtype) (UWtype) uu.s.low
  				    * (UDWtype) (UWtype) vv.s.low};
diff -Nrcpad gcc-6.4.0/libgfortran/ChangeLog gcc-6.5.0/libgfortran/ChangeLog
*** gcc-6.4.0/libgfortran/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libgfortran/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,35 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-16  Gerald Pfeifer  <gerald@pfeifer.com>
+ 
+ 	Backport from trunk
+ 	* io/close.c [!HAVE_UNLINK_OPEN_FILE]: Include <string.h>.
+ 
+ 2018-01-03  Janne Blomqvist  <jb@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR libgfortran/83649
+ 	* io/unix.c (MAX_CHUNK): New define.
+ 	(raw_read): For reads larger than MAX_CHUNK, loop.
+ 	(raw_write): Write no more than MAX_CHUNK bytes per iteration.
+ 
+ 2017-12-16  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR libgfortran/81937
+ 	* io/list_read.c (next_char_internal): Don't attempt to read
+ 	from the internal unit stream if no bytes are left. Decrement
+ 	bytes_left in the right place.
+ 
+ 2017-10-22  Thomas Koenig  <tkoenig@gcc.gnu.org>
+ 
+ 	Backport from trunk
+ 	PR libfortran/82233
+ 	* intrinsics/execute_command_line.c (execute_command_line):
+ 	No call to runtime_error if cmdstat is present.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libgfortran/intrinsics/execute_command_line.c gcc-6.5.0/libgfortran/intrinsics/execute_command_line.c
*** gcc-6.4.0/libgfortran/intrinsics/execute_command_line.c	Fri Jan 15 20:20:58 2016
--- gcc-6.5.0/libgfortran/intrinsics/execute_command_line.c	Sun Oct 22 14:21:16 2017
*************** execute_command_line (const char *comman
*** 126,140 ****
    free (cmd);
  
    /* Now copy back to the Fortran string if needed.  */
!   if (cmdstat && *cmdstat > EXEC_NOERROR)
!     {
!       if (cmdmsg)
! 	fstrcpy (cmdmsg, cmdmsg_len, cmdmsg_values[*cmdstat],
  		strlen (cmdmsg_values[*cmdstat]));
-       else
- 	runtime_error ("Failure in EXECUTE_COMMAND_LINE: %s",
- 		       cmdmsg_values[*cmdstat]);
-     }
  }
  
  
--- 126,134 ----
    free (cmd);
  
    /* Now copy back to the Fortran string if needed.  */
!   if (cmdstat && *cmdstat > EXEC_NOERROR && cmdmsg)
!     fstrcpy (cmdmsg, cmdmsg_len, cmdmsg_values[*cmdstat],
  		strlen (cmdmsg_values[*cmdstat]));
  }
  
  
diff -Nrcpad gcc-6.4.0/libgfortran/io/close.c gcc-6.5.0/libgfortran/io/close.c
*** gcc-6.4.0/libgfortran/io/close.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgfortran/io/close.c	Tue Oct 16 15:21:19 2018
*************** see the files COPYING3 and COPYING.RUNTI
*** 25,30 ****
--- 25,33 ----
  #include "io.h"
  #include "unix.h"
  #include <limits.h>
+ #if !HAVE_UNLINK_OPEN_FILE
+ #include <string.h>
+ #endif
  
  typedef enum
  { CLOSE_DELETE, CLOSE_KEEP, CLOSE_UNSPECIFIED }
diff -Nrcpad gcc-6.4.0/libgfortran/io/list_read.c gcc-6.5.0/libgfortran/io/list_read.c
*** gcc-6.4.0/libgfortran/io/list_read.c	Thu Aug 11 17:08:54 2016
--- gcc-6.5.0/libgfortran/io/list_read.c	Sat Dec 16 22:41:13 2017
*************** next_char_internal (st_parameter_dt *dtp
*** 266,280 ****
      }
  
    /* Get the next character and handle end-of-record conditions.  */
! 
!   if (dtp->common.unit) /* Check for kind=4 internal unit.  */
!    length = sread (dtp->u.p.current_unit->s, &c, 1);
    else
!    {
!      char cc;
!      length = sread (dtp->u.p.current_unit->s, &cc, 1);
!      c = cc;
!    }
  
    if (unlikely (length < 0))
      {
--- 266,284 ----
      }
  
    /* Get the next character and handle end-of-record conditions.  */
!   if (likely (dtp->u.p.current_unit->bytes_left > 0))
!     {
!       if (dtp->common.unit) /* Check for kind=4 internal unit.  */
! 	length = sread (dtp->u.p.current_unit->s, &c, 1);
!       else
! 	{
! 	  char cc;
! 	  length = sread (dtp->u.p.current_unit->s, &cc, 1);
! 	  c = cc;
! 	}
!     }
    else
!     length = 0;
  
    if (unlikely (length < 0))
      {
*************** next_char_internal (st_parameter_dt *dtp
*** 290,296 ****
  	  generate_error (&dtp->common, LIBERROR_INTERNAL_UNIT, NULL);
  	  return '\0';
  	}
-       dtp->u.p.current_unit->bytes_left--;
      }
    else
      {
--- 294,299 ----
*************** next_char_internal (st_parameter_dt *dtp
*** 302,307 ****
--- 305,311 ----
  	  dtp->u.p.at_eof = 1;
  	}
      }
+   dtp->u.p.current_unit->bytes_left--;
  
  done:
    dtp->u.p.at_eol = (c == '\n' || c == EOF);
diff -Nrcpad gcc-6.4.0/libgfortran/io/unix.c gcc-6.5.0/libgfortran/io/unix.c
*** gcc-6.4.0/libgfortran/io/unix.c	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgfortran/io/unix.c	Wed Jan  3 12:08:05 2018
*************** raw_flush (unix_stream * s  __attribute_
*** 294,305 ****
    return 0;
  }
  
  static ssize_t
  raw_read (unix_stream * s, void * buf, ssize_t nbyte)
  {
    /* For read we can't do I/O in a loop like raw_write does, because
!      that will break applications that wait for interactive I/O.  */
!   return read (s->fd, buf, nbyte);
  }
  
  static ssize_t
--- 294,343 ----
    return 0;
  }
  
+ /* Write/read at most 2 GB - 4k chunks at a time. Linux never reads or
+    writes more than this, and there are reports that macOS fails for
+    larger than 2 GB as well.  */
+ #define MAX_CHUNK 2147479552
+ 
  static ssize_t
  raw_read (unix_stream * s, void * buf, ssize_t nbyte)
  {
    /* For read we can't do I/O in a loop like raw_write does, because
!      that will break applications that wait for interactive I/O.  We
!      still can loop around EINTR, though.  This however causes a
!      problem for large reads which must be chunked, see comment above.
!      So assume that if the size is larger than the chunk size, we're
!      reading from a file and not the terminal.  */
!   if (nbyte <= MAX_CHUNK)
!     {
!       while (true)
! 	{
! 	  ssize_t trans = read (s->fd, buf, nbyte);
! 	  if (trans == -1 && errno == EINTR)
! 	    continue;
! 	  return trans;
! 	}
!     }
!   else
!     {
!       ssize_t bytes_left = nbyte;
!       char *buf_st = buf;
!       while (bytes_left > 0)
! 	{
! 	  ssize_t to_read = bytes_left < MAX_CHUNK ? bytes_left: MAX_CHUNK;
! 	  ssize_t trans = read (s->fd, buf_st, to_read);
! 	  if (trans == -1)
! 	    {
! 	      if (errno == EINTR)
! 		continue;
! 	      else
! 		return trans;
! 	    }
! 	  buf_st += trans;
! 	  bytes_left -= trans;
! 	}
!       return nbyte - bytes_left;
!     }
  }
  
  static ssize_t
*************** raw_write (unix_stream * s, const void *
*** 312,321 ****
    buf_st = (char *) buf;
  
    /* We must write in a loop since some systems don't restart system
!      calls in case of a signal.  */
    while (bytes_left > 0)
      {
!       trans = write (s->fd, buf_st, bytes_left);
        if (trans < 0)
  	{
  	  if (errno == EINTR)
--- 350,362 ----
    buf_st = (char *) buf;
  
    /* We must write in a loop since some systems don't restart system
!      calls in case of a signal.  Also some systems might fail outright
!      if we try to write more than 2 GB in a single syscall, so chunk
!      up large writes.  */
    while (bytes_left > 0)
      {
!       ssize_t to_write = bytes_left < MAX_CHUNK ? bytes_left: MAX_CHUNK;
!       trans = write (s->fd, buf_st, to_write);
        if (trans < 0)
  	{
  	  if (errno == EINTR)
diff -Nrcpad gcc-6.4.0/libgo/Makefile.am gcc-6.5.0/libgo/Makefile.am
*** gcc-6.4.0/libgo/Makefile.am	Wed Feb  3 21:58:02 2016
--- gcc-6.5.0/libgo/Makefile.am	Tue Jun 26 04:44:49 2018
*************** else
*** 1989,2005 ****
  syscall_lsf_file =
  endif
  
- # GNU/Linux specific ustat support.
- if LIBGO_IS_LINUX
- if LIBGO_IS_ARM64
- syscall_ustat_file =
- else
- syscall_ustat_file = go/syscall/libcall_linux_ustat.go
- endif
- else
- syscall_ustat_file =
- endif
- 
  # GNU/Linux specific utimesnano support.
  if LIBGO_IS_LINUX
  syscall_utimesnano_file = go/syscall/libcall_linux_utimesnano.go
--- 1989,1994 ----
diff -Nrcpad gcc-6.4.0/libgo/Makefile.in gcc-6.5.0/libgo/Makefile.in
*** gcc-6.4.0/libgo/Makefile.in	Wed Feb  3 21:58:02 2016
--- gcc-6.5.0/libgo/Makefile.in	Tue Jun 26 04:44:49 2018
*************** go_unicode_utf8_files = \
*** 2080,2090 ****
  
  # GNU/Linux specific socket filters.
  @LIBGO_IS_LINUX_TRUE@syscall_lsf_file = go/syscall/lsf_linux.go
- @LIBGO_IS_ARM64_FALSE@@LIBGO_IS_LINUX_TRUE@syscall_ustat_file = go/syscall/libcall_linux_ustat.go
- 
- # GNU/Linux specific ustat support.
- @LIBGO_IS_ARM64_TRUE@@LIBGO_IS_LINUX_TRUE@syscall_ustat_file = 
- @LIBGO_IS_LINUX_FALSE@syscall_ustat_file = 
  @LIBGO_IS_LINUX_FALSE@syscall_utimesnano_file = go/syscall/libcall_posix_utimesnano.go
  
  # GNU/Linux specific utimesnano support.
--- 2080,2085 ----
diff -Nrcpad gcc-6.4.0/libgo/config.h.in gcc-6.5.0/libgo/config.h.in
*** gcc-6.4.0/libgo/config.h.in	Sat May 16 00:17:46 2015
--- gcc-6.5.0/libgo/config.h.in	Tue Jun 26 04:44:49 2018
***************
*** 325,333 ****
  /* Define to 1 if you have the `unshare' function. */
  #undef HAVE_UNSHARE
  
- /* Define to 1 if you have the <ustat.h> header file and it works. */
- #undef HAVE_USTAT_H
- 
  /* Define to 1 if you have the `utimensat' function. */
  #undef HAVE_UTIMENSAT
  
--- 325,330 ----
diff -Nrcpad gcc-6.4.0/libgo/configure gcc-6.5.0/libgo/configure
*** gcc-6.4.0/libgo/configure	Thu Feb  4 22:54:20 2016
--- gcc-6.5.0/libgo/configure	Tue Jun 26 04:44:49 2018
*************** fi
*** 14842,14880 ****
  done
  
  
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether <ustat.h> can be used" >&5
- $as_echo_n "checking whether <ustat.h> can be used... " >&6; }
- if test "${libgo_cv_c_ustat_h+set}" = set; then :
-   $as_echo_n "(cached) " >&6
- else
-   CFLAGS_hold=$CFLAGS
- CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE $OSCFLAGS"
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
- /* end confdefs.h.  */
- 
- #include <sys/types.h>
- #ifdef HAVE_LINUX_FILTER_H
- #include <linux/filter.h>
- #endif
- #include <ustat.h>
- 
- _ACEOF
- if ac_fn_c_try_compile "$LINENO"; then :
-   libgo_cv_c_ustat_h=yes
- else
-   libgo_cv_c_ustat_h=no
- fi
- rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
- CFLAGS=$CFLAGS_hold
- fi
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgo_cv_c_ustat_h" >&5
- $as_echo "$libgo_cv_c_ustat_h" >&6; }
- if test $libgo_cv_c_ustat_h = yes; then
- 
- $as_echo "#define HAVE_USTAT_H 1" >>confdefs.h
- 
- fi
- 
   if test "$ac_cv_header_sys_mman_h" = yes; then
    HAVE_SYS_MMAN_H_TRUE=
    HAVE_SYS_MMAN_H_FALSE='#'
--- 14842,14847 ----
diff -Nrcpad gcc-6.4.0/libgo/configure.ac gcc-6.5.0/libgo/configure.ac
*** gcc-6.4.0/libgo/configure.ac	Thu Feb  4 22:54:20 2016
--- gcc-6.5.0/libgo/configure.ac	Tue Jun 26 04:44:49 2018
*************** AC_CHECK_HEADERS([linux/filter.h linux/i
*** 519,542 ****
  #endif
  ])
  
- AC_CACHE_CHECK([whether <ustat.h> can be used],
- [libgo_cv_c_ustat_h],
- [CFLAGS_hold=$CFLAGS
- CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE $OSCFLAGS"
- AC_COMPILE_IFELSE(
- [AC_LANG_SOURCE([
- #include <sys/types.h>
- #ifdef HAVE_LINUX_FILTER_H
- #include <linux/filter.h>
- #endif
- #include <ustat.h>
- ])], [libgo_cv_c_ustat_h=yes], [libgo_cv_c_ustat_h=no])
- CFLAGS=$CFLAGS_hold])
- if test $libgo_cv_c_ustat_h = yes; then
-   AC_DEFINE(HAVE_USTAT_H, 1,
-     [Define to 1 if you have the <ustat.h> header file and it works.])
- fi
- 
  AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes)
  
  AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr)
--- 519,524 ----
*************** STRUCT_EPOLL_EVENT_FD_OFFSET=${libgo_cv_
*** 684,690 ****
  AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET)
  
  dnl Check if <sys/stat.h> uses timespec_t for st_?tim members.  Introduced
! dnl in Solaris 12 for XPG7 compatibility.
  AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h],
  		[have_stat_timespec=yes], [have_stat_timespec=no])
  AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes)
--- 666,672 ----
  AC_SUBST(STRUCT_EPOLL_EVENT_FD_OFFSET)
  
  dnl Check if <sys/stat.h> uses timespec_t for st_?tim members.  Introduced
! dnl in Solaris 11.4 for XPG7 compatibility.
  AC_EGREP_HEADER([timespec_t.*st_atim], [sys/stat.h],
  		[have_stat_timespec=yes], [have_stat_timespec=no])
  AM_CONDITIONAL(HAVE_STAT_TIMESPEC, test $have_stat_timespec = yes)
diff -Nrcpad gcc-6.4.0/libgo/go/syscall/libcall_linux_ustat.go gcc-6.5.0/libgo/go/syscall/libcall_linux_ustat.go
*** gcc-6.4.0/libgo/go/syscall/libcall_linux_ustat.go	Tue Sep 15 03:43:01 2015
--- gcc-6.5.0/libgo/go/syscall/libcall_linux_ustat.go	Thu Jan  1 00:00:00 1970
***************
*** 1,11 ****
- // Copyright 2015 The Go Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style
- // license that can be found in the LICENSE file.
- 
- // GNU/Linux library ustat call.
- // This is not supported on some kernels, such as arm64.
- 
- package syscall
- 
- //sys	Ustat(dev int, ubuf *Ustat_t) (err error)
- //ustat(dev _dev_t, ubuf *Ustat_t) _C_int
--- 0 ----
diff -Nrcpad gcc-6.4.0/libgo/go/syscall/syscall_linux_s390.go gcc-6.5.0/libgo/go/syscall/syscall_linux_s390.go
*** gcc-6.4.0/libgo/go/syscall/syscall_linux_s390.go	Tue Nov  4 22:39:30 2014
--- gcc-6.5.0/libgo/go/syscall/syscall_linux_s390.go	Thu Jul 20 22:03:48 2017
*************** func (r *PtraceRegs) PC() uint64 { retur
*** 12,21 ****
  
  func (r *PtraceRegs) SetPC(pc uint64) { r.Psw.Addr = uint32(pc) }
  
! func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
! 	return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
  }
  
  func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
! 	return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
  }
--- 12,40 ----
  
  func (r *PtraceRegs) SetPC(pc uint64) { r.Psw.Addr = uint32(pc) }
  
! const syscall_PTRACE_PEEKUSR_AREA = 0x5000
! const syscall_PTRACE_POKEUSR_AREA = 0x5001
! 
! type syscall_ptrace_area struct {
! 	len          uint32
! 	kernel_addr  uint32
! 	process_addr uint32
! }
! 
! func PtraceGetRegs(pid int, regs *PtraceRegs) (err error) {
! 	parea := syscall_ptrace_area{
! 		12,
! 		0,
! 		uint32(uintptr(unsafe.Pointer(regs))),
! 	}
! 	return ptrace(syscall_PTRACE_PEEKUSR_AREA, pid, uintptr(unsafe.Pointer(&parea)), 0)
  }
  
  func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
! 	parea := syscall_ptrace_area{
! 		12,
! 		0,
! 		uint32(uintptr(unsafe.Pointer(regs))),
! 	}
! 	return ptrace(syscall_PTRACE_POKEUSR_AREA, pid, uintptr(unsafe.Pointer(&parea)), 0)
  }
diff -Nrcpad gcc-6.4.0/libgo/go/syscall/syscall_linux_s390x.go gcc-6.5.0/libgo/go/syscall/syscall_linux_s390x.go
*** gcc-6.4.0/libgo/go/syscall/syscall_linux_s390x.go	Tue Nov  4 22:39:30 2014
--- gcc-6.5.0/libgo/go/syscall/syscall_linux_s390x.go	Thu Jul 20 22:03:48 2017
*************** func (r *PtraceRegs) PC() uint64 { retur
*** 12,21 ****
  
  func (r *PtraceRegs) SetPC(pc uint64) { r.Psw.Addr = pc }
  
! func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
! 	return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
  }
  
  func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
! 	return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
  }
--- 12,40 ----
  
  func (r *PtraceRegs) SetPC(pc uint64) { r.Psw.Addr = pc }
  
! const syscall_PTRACE_PEEKUSR_AREA = 0x5000
! const syscall_PTRACE_POKEUSR_AREA = 0x5001
! 
! type syscall_ptrace_area struct {
! 	len          uint32
! 	kernel_addr  uint64
! 	process_addr uint64
! }
! 
! func PtraceGetRegs(pid int, regs *PtraceRegs) (err error) {
! 	parea := syscall_ptrace_area{
! 		24,
! 		0,
! 		uint64(uintptr(unsafe.Pointer(regs))),
! 	}
! 	return ptrace(syscall_PTRACE_PEEKUSR_AREA, pid, uintptr(unsafe.Pointer(&parea)), 0)
  }
  
  func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
! 	parea := syscall_ptrace_area{
! 		24,
! 		0,
! 		uint64(uintptr(unsafe.Pointer(regs))),
! 	}
! 	return ptrace(syscall_PTRACE_POKEUSR_AREA, pid, uintptr(unsafe.Pointer(&parea)), 0)
  }
diff -Nrcpad gcc-6.4.0/libgo/mksysinfo.sh gcc-6.5.0/libgo/mksysinfo.sh
*** gcc-6.4.0/libgo/mksysinfo.sh	Fri Feb 26 17:36:00 2016
--- gcc-6.5.0/libgo/mksysinfo.sh	Tue Jun 26 04:44:49 2018
*************** cat > sysinfo.c <<EOF
*** 142,150 ****
  #if defined(HAVE_SYS_SYSINFO_H)
  #include <sys/sysinfo.h>
  #endif
- #if defined(HAVE_USTAT_H)
- #include <ustat.h>
- #endif
  #if defined(HAVE_UTIME_H)
  #include <utime.h>
  #endif
--- 142,147 ----
*************** grep '^type _sysinfo ' gen-sysinfo.go |
*** 1350,1369 ****
        -e 's/mem_unit/Unit/' \
      >> ${OUT}
  
- # The ustat struct.
- grep '^type _ustat ' gen-sysinfo.go | \
-     sed -e 's/_ustat/Ustat_t/' \
-       -e 's/f_tfree/Tfree/' \
-       -e 's/f_tinode/Tinoe/' \
-       -e 's/f_fname/Fname/' \
-       -e 's/f_fpack/Fpack/' \
-     >> ${OUT}
- # Force it to be defined, as on some older GNU/Linux systems the
- # header file fails when using with <linux/filter.h>.
- if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
-   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
- fi
- 
  # The utimbuf struct.
  grep '^type _utimbuf ' gen-sysinfo.go | \
      sed -e 's/_utimbuf/Utimbuf/' \
--- 1347,1352 ----
*************** grep '^type _zone_net_addr_t ' gen-sysin
*** 1503,1524 ****
      sed -e 's/_in6_addr/[16]byte/' \
      >> ${OUT}
  
! # The Solaris 12 _flow_arp_desc_t struct.
  grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
  
! # The Solaris 12 _flow_l3_desc_t struct.
  grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
  
! # The Solaris 12 _mac_ipaddr_t struct.
  grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
  
! # The Solaris 12 _mactun_info_t struct.
  grep '^type _mactun_info_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
--- 1486,1507 ----
      sed -e 's/_in6_addr/[16]byte/' \
      >> ${OUT}
  
! # The Solaris 11.4 _flow_arp_desc_t struct.
  grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
  
! # The Solaris 11.4 _flow_l3_desc_t struct.
  grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
  
! # The Solaris 11.3 _mac_ipaddr_t struct.
  grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
  
! # The Solaris 11.3 _mactun_info_t struct.
  grep '^type _mactun_info_t ' gen-sysinfo.go | \
      sed -e 's/_in6_addr_t/[16]byte/g' \
      >> ${OUT}
diff -Nrcpad gcc-6.4.0/libgomp/ChangeLog gcc-6.5.0/libgomp/ChangeLog
*** gcc-6.4.0/libgomp/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libgomp/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,77 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-12  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-07-17  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/86542
+ 	* testsuite/libgomp.c++/pr86542.C: New test.
+ 
+ 	PR middle-end/86539
+ 	* testsuite/libgomp.c++/pr86539.C: New test.
+ 
+ 	2018-07-26  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR middle-end/86660
+ 	* testsuite/libgomp.c/pr86660.c: New test.
+ 
+ 2018-06-26  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/86291
+ 	* testsuite/libgomp.c++/pr86291.C: New test.
+ 
+ 2018-06-25  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2018-01-29  Christoph Spiel  <cspiel@freenet.de>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR libgomp/84096
+ 	* omp.h.in (omp_init_nest_lock_with_hint): Use omp_nest_lock_t
+ 	instead of omp_lock_t.
+ 
+ 	2017-11-24  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR fortran/81304
+ 	* testsuite/libgomp.fortran/pr81304.f90: New test.
+ 
+ 	2017-11-23  Dirk Broemmel  <d.broemmel@fz-juelich.de>
+ 		    Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR fortran/81841
+ 	* libgomp.fortran/pr81841.f90: New test.
+ 
+ 2017-12-10  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	backport from trunk:
+ 	PR c/81875
+ 	2017-09-16  Tom de Vries  <tom@codesourcery.com>
+ 
+ 	* testsuite/libgomp.c/pr81875.c: New test.
+ 
+ 2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	Backported from mainline
+ 	2017-09-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c++/81314
+ 	* testsuite/libgomp.c++/pr81314.C: New test.
+ 
+ 	2017-08-09  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/81687
+ 	* testsuite/libgomp.c/pr81687-1.c: New test.
+ 	* testsuite/libgomp.c/pr81687-2.c: New test.
+ 
+ 	2017-07-27  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR c/45784
+ 	* testsuite/libgomp.c/pr45784.c: New test.
+ 	* testsuite/libgomp.c++/pr45784.C: New test.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libgomp/libgomp.info gcc-6.5.0/libgomp/libgomp.info
*** gcc-6.4.0/libgomp/libgomp.info	Tue Jul  4 09:30:48 2017
--- gcc-6.5.0/libgomp/libgomp.info	Fri Oct 26 10:08:42 2018
***************
*** 1,5 ****
! This is libgomp.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/libgomp/libgomp.texi.
  
  Copyright (C) 2006-2016 Free Software Foundation, Inc.
  
--- 1,5 ----
! This is libgomp.info, produced by makeinfo version 6.4 from
! libgomp.texi.
  
  Copyright (C) 2006-2016 Free Software Foundation, Inc.
  
*************** Free Documentation License".
*** 18,26 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
! 
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * libgomp: (libgomp).          GNU Offloading and Multi Processing Runtime Library.
--- 18,25 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * libgomp: (libgomp).          GNU Offloading and Multi Processing Runtime Library.
*************** Free Documentation License".
*** 51,58 ****
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise
! funds for GNU development.
  
  
  File: libgomp.info,  Node: Top,  Next: Enabling OpenMP,  Up: (dir)
--- 50,57 ----
     (b) The FSF's Back-Cover Text is:
  
     You have freedom to copy and modify this GNU Manual, like GNU
! software.  Copies published by the Free Software Foundation raise funds
! for GNU development.
  
  
  File: libgomp.info,  Node: Top,  Next: Enabling OpenMP,  Up: (dir)
*************** File: libgomp.info,  Node: Top,  Next: E
*** 60,70 ****
  Introduction
  ************
  
! This manual documents the usage of libgomp, the GNU Offloading and
! Multi Processing Runtime Library.  This includes the GNU implementation
! of the OpenMP (http://www.openmp.org) Application Programming Interface
! (API) for multi-platform shared-memory parallel programming in C/C++
! and Fortran, and the GNU implementation of the OpenACC
  (http://www.openacc.org/) Application Programming Interface (API) for
  offloading of code to accelerator devices in C/C++ and Fortran.
  
--- 59,69 ----
  Introduction
  ************
  
! This manual documents the usage of libgomp, the GNU Offloading and Multi
! Processing Runtime Library.  This includes the GNU implementation of the
! OpenMP (http://www.openmp.org) Application Programming Interface (API)
! for multi-platform shared-memory parallel programming in C/C++ and
! Fortran, and the GNU implementation of the OpenACC
  (http://www.openacc.org/) Application Programming Interface (API) for
  offloading of code to accelerator devices in C/C++ and Fortran.
  
*************** File: libgomp.info,  Node: Enabling Open
*** 108,124 ****
  *****************
  
  To activate the OpenMP extensions for C/C++ and Fortran, the
! compile-time flag `-fopenmp' must be specified.  This enables the
! OpenMP directive `#pragma omp' in C/C++ and `!$omp' directives in free
! form, `c$omp', `*$omp' and `!$omp' directives in fixed form, `!$'
! conditional compilation sentinels in free form and `c$', `*$' and `!$'
! sentinels in fixed form, for Fortran.  The flag also arranges for
! automatic linking of the OpenMP runtime library (*note Runtime Library
! Routines::).
  
!    A complete description of all OpenMP directives accepted may be
! found in the OpenMP Application Program Interface
! (http://www.openmp.org) manual, version 4.5.
  
  
  File: libgomp.info,  Node: Runtime Library Routines,  Next: Environment Variables,  Prev: Enabling OpenMP,  Up: Top
--- 107,122 ----
  *****************
  
  To activate the OpenMP extensions for C/C++ and Fortran, the
! compile-time flag '-fopenmp' must be specified.  This enables the OpenMP
! directive '#pragma omp' in C/C++ and '!$omp' directives in free form,
! 'c$omp', '*$omp' and '!$omp' directives in fixed form, '!$' conditional
! compilation sentinels in free form and 'c$', '*$' and '!$' sentinels in
! fixed form, for Fortran.  The flag also arranges for automatic linking
! of the OpenMP runtime library (*note Runtime Library Routines::).
  
!    A complete description of all OpenMP directives accepted may be found
! in the OpenMP Application Program Interface (http://www.openmp.org)
! manual, version 4.5.
  
  
  File: libgomp.info,  Node: Runtime Library Routines,  Next: Environment Variables,  Prev: Enabling OpenMP,  Up: Top
*************** Portable, thread-based, wall clock timer
*** 186,192 ****
  
  File: libgomp.info,  Node: omp_get_active_level,  Next: omp_get_ancestor_thread_num,  Up: Runtime Library Routines
  
! 2.1 `omp_get_active_level' - Number of parallel regions
  =======================================================
  
  _Description_:
--- 184,190 ----
  
  File: libgomp.info,  Node: omp_get_active_level,  Next: omp_get_ancestor_thread_num,  Up: Runtime Library Routines
  
! 2.1 'omp_get_active_level' - Number of parallel regions
  =======================================================
  
  _Description_:
*************** _Description_:
*** 194,203 ****
       blocks, which enclose the calling call.
  
  _C/C++_
!      _Prototype_:  `int omp_get_active_level(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_active_level()'
  
  _See also_:
       *note omp_get_level::, *note omp_get_max_active_levels::, *note
--- 192,201 ----
       blocks, which enclose the calling call.
  
  _C/C++_
!      _Prototype_:   'int omp_get_active_level(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_active_level()'
  
  _See also_:
       *note omp_get_level::, *note omp_get_max_active_levels::, *note
*************** _Reference_:
*** 209,229 ****
  
  File: libgomp.info,  Node: omp_get_ancestor_thread_num,  Next: omp_get_cancellation,  Prev: omp_get_active_level,  Up: Runtime Library Routines
  
! 2.2 `omp_get_ancestor_thread_num' - Ancestor thread ID
  ======================================================
  
  _Description_:
       This function returns the thread identification number for the
       given nesting level of the current thread.  For values of LEVEL
!      outside zero to `omp_get_level' -1 is returned; if LEVEL is
!      `omp_get_level' the result is identical to `omp_get_thread_num'.
  
  _C/C++_
!      _Prototype_:  `int omp_get_ancestor_thread_num(int level);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_ancestor_thread_num(level)'
!                    `integer level'
  
  _See also_:
       *note omp_get_level::, *note omp_get_thread_num::, *note
--- 207,227 ----
  
  File: libgomp.info,  Node: omp_get_ancestor_thread_num,  Next: omp_get_cancellation,  Prev: omp_get_active_level,  Up: Runtime Library Routines
  
! 2.2 'omp_get_ancestor_thread_num' - Ancestor thread ID
  ======================================================
  
  _Description_:
       This function returns the thread identification number for the
       given nesting level of the current thread.  For values of LEVEL
!      outside zero to 'omp_get_level' -1 is returned; if LEVEL is
!      'omp_get_level' the result is identical to 'omp_get_thread_num'.
  
  _C/C++_
!      _Prototype_:   'int omp_get_ancestor_thread_num(int level);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_ancestor_thread_num(level)'
!                     'integer level'
  
  _See also_:
       *note omp_get_level::, *note omp_get_thread_num::, *note
*************** _Reference_:
*** 235,254 ****
  
  File: libgomp.info,  Node: omp_get_cancellation,  Next: omp_get_default_device,  Prev: omp_get_ancestor_thread_num,  Up: Runtime Library Routines
  
! 2.3 `omp_get_cancellation' - Whether cancellation support is enabled
  ====================================================================
  
  _Description_:
!      This function returns `true' if cancellation is activated, `false'
!      otherwise.  Here, `true' and `false' represent their
!      language-specific counterparts.  Unless `OMP_CANCELLATION' is set
       true, cancellations are deactivated.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_cancellation(void);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_get_cancellation()'
  
  _See also_:
       *note OMP_CANCELLATION::
--- 233,252 ----
  
  File: libgomp.info,  Node: omp_get_cancellation,  Next: omp_get_default_device,  Prev: omp_get_ancestor_thread_num,  Up: Runtime Library Routines
  
! 2.3 'omp_get_cancellation' - Whether cancellation support is enabled
  ====================================================================
  
  _Description_:
!      This function returns 'true' if cancellation is activated, 'false'
!      otherwise.  Here, 'true' and 'false' represent their
!      language-specific counterparts.  Unless 'OMP_CANCELLATION' is set
       true, cancellations are deactivated.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_cancellation(void);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_get_cancellation()'
  
  _See also_:
       *note OMP_CANCELLATION::
*************** _Reference_:
*** 259,275 ****
  
  File: libgomp.info,  Node: omp_get_default_device,  Next: omp_get_dynamic,  Prev: omp_get_cancellation,  Up: Runtime Library Routines
  
! 2.4 `omp_get_default_device' - Get the default device for target regions
  ========================================================================
  
  _Description_:
       Get the default device for target regions without device clause.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_default_device(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_default_device()'
  
  _See also_:
       *note OMP_DEFAULT_DEVICE::, *note omp_set_default_device::
--- 257,273 ----
  
  File: libgomp.info,  Node: omp_get_default_device,  Next: omp_get_dynamic,  Prev: omp_get_cancellation,  Up: Runtime Library Routines
  
! 2.4 'omp_get_default_device' - Get the default device for target regions
  ========================================================================
  
  _Description_:
       Get the default device for target regions without device clause.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_default_device(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_default_device()'
  
  _See also_:
       *note OMP_DEFAULT_DEVICE::, *note omp_set_default_device::
*************** _Reference_:
*** 280,302 ****
  
  File: libgomp.info,  Node: omp_get_dynamic,  Next: omp_get_level,  Prev: omp_get_default_device,  Up: Runtime Library Routines
  
! 2.5 `omp_get_dynamic' - Dynamic teams setting
  =============================================
  
  _Description_:
!      This function returns `true' if enabled, `false' otherwise.  Here,
!      `true' and `false' represent their language-specific counterparts.
  
       The dynamic team setting may be initialized at startup by the
!      `OMP_DYNAMIC' environment variable or at runtime using
!      `omp_set_dynamic'.  If undefined, dynamic adjustment is disabled
!      by default.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_dynamic(void);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_get_dynamic()'
  
  _See also_:
       *note omp_set_dynamic::, *note OMP_DYNAMIC::
--- 278,300 ----
  
  File: libgomp.info,  Node: omp_get_dynamic,  Next: omp_get_level,  Prev: omp_get_default_device,  Up: Runtime Library Routines
  
! 2.5 'omp_get_dynamic' - Dynamic teams setting
  =============================================
  
  _Description_:
!      This function returns 'true' if enabled, 'false' otherwise.  Here,
!      'true' and 'false' represent their language-specific counterparts.
  
       The dynamic team setting may be initialized at startup by the
!      'OMP_DYNAMIC' environment variable or at runtime using
!      'omp_set_dynamic'.  If undefined, dynamic adjustment is disabled by
!      default.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_dynamic(void);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_get_dynamic()'
  
  _See also_:
       *note omp_set_dynamic::, *note OMP_DYNAMIC::
*************** _Reference_:
*** 307,313 ****
  
  File: libgomp.info,  Node: omp_get_level,  Next: omp_get_max_active_levels,  Prev: omp_get_dynamic,  Up: Runtime Library Routines
  
! 2.6 `omp_get_level' - Obtain the current nesting level
  ======================================================
  
  _Description_:
--- 305,311 ----
  
  File: libgomp.info,  Node: omp_get_level,  Next: omp_get_max_active_levels,  Prev: omp_get_dynamic,  Up: Runtime Library Routines
  
! 2.6 'omp_get_level' - Obtain the current nesting level
  ======================================================
  
  _Description_:
*************** _Description_:
*** 315,324 ****
       which enclose the calling call.
  
  _C/C++_
!      _Prototype_:  `int omp_get_level(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_level()'
  
  _See also_:
       *note omp_get_active_level::
--- 313,322 ----
       which enclose the calling call.
  
  _C/C++_
!      _Prototype_:   'int omp_get_level(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_level()'
  
  _See also_:
       *note omp_get_active_level::
*************** _Reference_:
*** 329,335 ****
  
  File: libgomp.info,  Node: omp_get_max_active_levels,  Next: omp_get_max_task_priority,  Prev: omp_get_level,  Up: Runtime Library Routines
  
! 2.7 `omp_get_max_active_levels' - Maximum number of active regions
  ==================================================================
  
  _Description_:
--- 327,333 ----
  
  File: libgomp.info,  Node: omp_get_max_active_levels,  Next: omp_get_max_task_priority,  Prev: omp_get_level,  Up: Runtime Library Routines
  
! 2.7 'omp_get_max_active_levels' - Maximum number of active regions
  ==================================================================
  
  _Description_:
*************** _Description_:
*** 337,346 ****
       parallel regions.
  
  _C/C++_
!      _Prototype_:  `int omp_get_max_active_levels(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_max_active_levels()'
  
  _See also_:
       *note omp_set_max_active_levels::, *note omp_get_active_level::
--- 335,344 ----
       parallel regions.
  
  _C/C++_
!      _Prototype_:   'int omp_get_max_active_levels(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_max_active_levels()'
  
  _See also_:
       *note omp_set_max_active_levels::, *note omp_get_active_level::
*************** _Reference_:
*** 351,357 ****
  
  File: libgomp.info,  Node: omp_get_max_task_priority,  Next: omp_get_max_threads,  Prev: omp_get_max_active_levels,  Up: Runtime Library Routines
  
! 2.8 `omp_get_max_task_priority' - Maximum priority value
  ========================================================
  
  that can be set for tasks.
--- 349,355 ----
  
  File: libgomp.info,  Node: omp_get_max_task_priority,  Next: omp_get_max_threads,  Prev: omp_get_max_active_levels,  Up: Runtime Library Routines
  
! 2.8 'omp_get_max_task_priority' - Maximum priority value
  ========================================================
  
  that can be set for tasks.
*************** _Description_:
*** 360,369 ****
       tasks.
  
  _C/C++_
!      _Prototype_:  `int omp_get_max_task_priority(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_max_task_priority()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.29.
--- 358,367 ----
       tasks.
  
  _C/C++_
!      _Prototype_:   'int omp_get_max_task_priority(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_max_task_priority()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.29.
*************** _Reference_:
*** 371,388 ****
  
  File: libgomp.info,  Node: omp_get_max_threads,  Next: omp_get_nested,  Prev: omp_get_max_task_priority,  Up: Runtime Library Routines
  
! 2.9 `omp_get_max_threads' - Maximum number of threads of parallel region
  ========================================================================
  
  _Description_:
       Return the maximum number of threads used for the current parallel
!      region that does not use the clause `num_threads'.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_max_threads(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_max_threads()'
  
  _See also_:
       *note omp_set_num_threads::, *note omp_set_dynamic::, *note
--- 369,386 ----
  
  File: libgomp.info,  Node: omp_get_max_threads,  Next: omp_get_nested,  Prev: omp_get_max_task_priority,  Up: Runtime Library Routines
  
! 2.9 'omp_get_max_threads' - Maximum number of threads of parallel region
  ========================================================================
  
  _Description_:
       Return the maximum number of threads used for the current parallel
!      region that does not use the clause 'num_threads'.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_max_threads(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_max_threads()'
  
  _See also_:
       *note omp_set_num_threads::, *note omp_set_dynamic::, *note
*************** _Reference_:
*** 394,417 ****
  
  File: libgomp.info,  Node: omp_get_nested,  Next: omp_get_num_devices,  Prev: omp_get_max_threads,  Up: Runtime Library Routines
  
! 2.10 `omp_get_nested' - Nested parallel regions
  ===============================================
  
  _Description_:
!      This function returns `true' if nested parallel regions are
!      enabled, `false' otherwise.  Here, `true' and `false' represent
       their language-specific counterparts.
  
       Nested parallel regions may be initialized at startup by the
!      `OMP_NESTED' environment variable or at runtime using
!      `omp_set_nested'.  If undefined, nested parallel regions are
       disabled by default.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_nested(void);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_get_nested()'
  
  _See also_:
       *note omp_set_nested::, *note OMP_NESTED::
--- 392,415 ----
  
  File: libgomp.info,  Node: omp_get_nested,  Next: omp_get_num_devices,  Prev: omp_get_max_threads,  Up: Runtime Library Routines
  
! 2.10 'omp_get_nested' - Nested parallel regions
  ===============================================
  
  _Description_:
!      This function returns 'true' if nested parallel regions are
!      enabled, 'false' otherwise.  Here, 'true' and 'false' represent
       their language-specific counterparts.
  
       Nested parallel regions may be initialized at startup by the
!      'OMP_NESTED' environment variable or at runtime using
!      'omp_set_nested'.  If undefined, nested parallel regions are
       disabled by default.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_nested(void);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_get_nested()'
  
  _See also_:
       *note omp_set_nested::, *note OMP_NESTED::
*************** _Reference_:
*** 422,438 ****
  
  File: libgomp.info,  Node: omp_get_num_devices,  Next: omp_get_num_procs,  Prev: omp_get_nested,  Up: Runtime Library Routines
  
! 2.11 `omp_get_num_devices' - Number of target devices
  =====================================================
  
  _Description_:
       Returns the number of target devices.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_num_devices(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_num_devices()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.31.
--- 420,436 ----
  
  File: libgomp.info,  Node: omp_get_num_devices,  Next: omp_get_num_procs,  Prev: omp_get_nested,  Up: Runtime Library Routines
  
! 2.11 'omp_get_num_devices' - Number of target devices
  =====================================================
  
  _Description_:
       Returns the number of target devices.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_num_devices(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_num_devices()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.31.
*************** _Reference_:
*** 440,456 ****
  
  File: libgomp.info,  Node: omp_get_num_procs,  Next: omp_get_num_teams,  Prev: omp_get_num_devices,  Up: Runtime Library Routines
  
! 2.12 `omp_get_num_procs' - Number of processors online
  ======================================================
  
  _Description_:
       Returns the number of processors online on that device.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_num_procs(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_num_procs()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.5.
--- 438,454 ----
  
  File: libgomp.info,  Node: omp_get_num_procs,  Next: omp_get_num_teams,  Prev: omp_get_num_devices,  Up: Runtime Library Routines
  
! 2.12 'omp_get_num_procs' - Number of processors online
  ======================================================
  
  _Description_:
       Returns the number of processors online on that device.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_num_procs(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_num_procs()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.5.
*************** _Reference_:
*** 458,474 ****
  
  File: libgomp.info,  Node: omp_get_num_teams,  Next: omp_get_num_threads,  Prev: omp_get_num_procs,  Up: Runtime Library Routines
  
! 2.13 `omp_get_num_teams' - Number of teams
  ==========================================
  
  _Description_:
       Returns the number of teams in the current team region.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_num_teams(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_num_teams()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.32.
--- 456,472 ----
  
  File: libgomp.info,  Node: omp_get_num_teams,  Next: omp_get_num_threads,  Prev: omp_get_num_procs,  Up: Runtime Library Routines
  
! 2.13 'omp_get_num_teams' - Number of teams
  ==========================================
  
  _Description_:
       Returns the number of teams in the current team region.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_num_teams(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_num_teams()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.32.
*************** _Reference_:
*** 476,500 ****
  
  File: libgomp.info,  Node: omp_get_num_threads,  Next: omp_get_proc_bind,  Prev: omp_get_num_teams,  Up: Runtime Library Routines
  
! 2.14 `omp_get_num_threads' - Size of the active team
  ====================================================
  
  _Description_:
!      Returns the number of threads in the current team.  In a
!      sequential section of the program `omp_get_num_threads' returns 1.
  
       The default team size may be initialized at startup by the
!      `OMP_NUM_THREADS' environment variable.  At runtime, the size of
!      the current team may be set either by the `NUM_THREADS' clause or
!      by `omp_set_num_threads'.  If none of the above were used to
!      define a specific value and `OMP_DYNAMIC' is disabled, one thread
!      per CPU online is used.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_num_threads(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_num_threads()'
  
  _See also_:
       *note omp_get_max_threads::, *note omp_set_num_threads::, *note
--- 474,498 ----
  
  File: libgomp.info,  Node: omp_get_num_threads,  Next: omp_get_proc_bind,  Prev: omp_get_num_teams,  Up: Runtime Library Routines
  
! 2.14 'omp_get_num_threads' - Size of the active team
  ====================================================
  
  _Description_:
!      Returns the number of threads in the current team.  In a sequential
!      section of the program 'omp_get_num_threads' returns 1.
  
       The default team size may be initialized at startup by the
!      'OMP_NUM_THREADS' environment variable.  At runtime, the size of
!      the current team may be set either by the 'NUM_THREADS' clause or
!      by 'omp_set_num_threads'.  If none of the above were used to define
!      a specific value and 'OMP_DYNAMIC' is disabled, one thread per CPU
!      online is used.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_num_threads(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_num_threads()'
  
  _See also_:
       *note omp_get_max_threads::, *note omp_set_num_threads::, *note
*************** _Reference_:
*** 506,527 ****
  
  File: libgomp.info,  Node: omp_get_proc_bind,  Next: omp_get_schedule,  Prev: omp_get_num_threads,  Up: Runtime Library Routines
  
! 2.15 `omp_get_proc_bind' - Whether theads may be moved between CPUs
  ===================================================================
  
  _Description_:
!      This functions returns the currently active thread affinity
!      policy, which is set via `OMP_PROC_BIND'.  Possible values are
!      `omp_proc_bind_false', `omp_proc_bind_true',
!      `omp_proc_bind_master', `omp_proc_bind_close' and
!      `omp_proc_bind_spread'.
  
  _C/C++_:
!      _Prototype_:  `omp_proc_bind_t omp_get_proc_bind(void);'
  
  _Fortran_:
!      _Interface_:  `integer(kind=omp_proc_bind_kind) function
!                    omp_get_proc_bind()'
  
  _See also_:
       *note OMP_PROC_BIND::, *note OMP_PLACES::, *note
--- 504,525 ----
  
  File: libgomp.info,  Node: omp_get_proc_bind,  Next: omp_get_schedule,  Prev: omp_get_num_threads,  Up: Runtime Library Routines
  
! 2.15 'omp_get_proc_bind' - Whether theads may be moved between CPUs
  ===================================================================
  
  _Description_:
!      This functions returns the currently active thread affinity policy,
!      which is set via 'OMP_PROC_BIND'.  Possible values are
!      'omp_proc_bind_false', 'omp_proc_bind_true',
!      'omp_proc_bind_master', 'omp_proc_bind_close' and
!      'omp_proc_bind_spread'.
  
  _C/C++_:
!      _Prototype_:   'omp_proc_bind_t omp_get_proc_bind(void);'
  
  _Fortran_:
!      _Interface_:   'integer(kind=omp_proc_bind_kind) function
!                     omp_get_proc_bind()'
  
  _See also_:
       *note OMP_PROC_BIND::, *note OMP_PLACES::, *note
*************** _Reference_:
*** 533,555 ****
  
  File: libgomp.info,  Node: omp_get_schedule,  Next: omp_get_team_num,  Prev: omp_get_proc_bind,  Up: Runtime Library Routines
  
! 2.16 `omp_get_schedule' - Obtain the runtime scheduling method
  ==============================================================
  
  _Description_:
       Obtain the runtime scheduling method.  The KIND argument will be
!      set to the value `omp_sched_static', `omp_sched_dynamic',
!      `omp_sched_guided' or `omp_sched_auto'.  The second argument,
       CHUNK_SIZE, is set to the chunk size.
  
  _C/C++_
!      _Prototype_:  `void omp_get_schedule(omp_sched_t *kind, int
!                    *chunk_size);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_get_schedule(kind, chunk_size)'
!                    `integer(kind=omp_sched_kind) kind'
!                    `integer chunk_size'
  
  _See also_:
       *note omp_set_schedule::, *note OMP_SCHEDULE::
--- 531,553 ----
  
  File: libgomp.info,  Node: omp_get_schedule,  Next: omp_get_team_num,  Prev: omp_get_proc_bind,  Up: Runtime Library Routines
  
! 2.16 'omp_get_schedule' - Obtain the runtime scheduling method
  ==============================================================
  
  _Description_:
       Obtain the runtime scheduling method.  The KIND argument will be
!      set to the value 'omp_sched_static', 'omp_sched_dynamic',
!      'omp_sched_guided' or 'omp_sched_auto'.  The second argument,
       CHUNK_SIZE, is set to the chunk size.
  
  _C/C++_
!      _Prototype_:   'void omp_get_schedule(omp_sched_t *kind, int
!                     *chunk_size);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_get_schedule(kind, chunk_size)'
!                     'integer(kind=omp_sched_kind) kind'
!                     'integer chunk_size'
  
  _See also_:
       *note omp_set_schedule::, *note OMP_SCHEDULE::
*************** _Reference_:
*** 560,576 ****
  
  File: libgomp.info,  Node: omp_get_team_num,  Next: omp_get_team_size,  Prev: omp_get_schedule,  Up: Runtime Library Routines
  
! 2.17 `omp_get_team_num' - Get team number
  =========================================
  
  _Description_:
       Returns the team number of the calling thread.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_team_num(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_team_num()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.33.
--- 558,574 ----
  
  File: libgomp.info,  Node: omp_get_team_num,  Next: omp_get_team_size,  Prev: omp_get_schedule,  Up: Runtime Library Routines
  
! 2.17 'omp_get_team_num' - Get team number
  =========================================
  
  _Description_:
       Returns the team number of the calling thread.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_team_num(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_team_num()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.33.
*************** _Reference_:
*** 578,599 ****
  
  File: libgomp.info,  Node: omp_get_team_size,  Next: omp_get_thread_limit,  Prev: omp_get_team_num,  Up: Runtime Library Routines
  
! 2.18 `omp_get_team_size' - Number of threads in a team
  ======================================================
  
  _Description_:
       This function returns the number of threads in a thread team to
       which either the current thread or its ancestor belongs.  For
!      values of LEVEL outside zero to `omp_get_level', -1 is returned;
!      if LEVEL is zero, 1 is returned, and for `omp_get_level', the
!      result is identical to `omp_get_num_threads'.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_team_size(int level);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_team_size(level)'
!                    `integer level'
  
  _See also_:
       *note omp_get_num_threads::, *note omp_get_level::, *note
--- 576,597 ----
  
  File: libgomp.info,  Node: omp_get_team_size,  Next: omp_get_thread_limit,  Prev: omp_get_team_num,  Up: Runtime Library Routines
  
! 2.18 'omp_get_team_size' - Number of threads in a team
  ======================================================
  
  _Description_:
       This function returns the number of threads in a thread team to
       which either the current thread or its ancestor belongs.  For
!      values of LEVEL outside zero to 'omp_get_level', -1 is returned; if
!      LEVEL is zero, 1 is returned, and for 'omp_get_level', the result
!      is identical to 'omp_get_num_threads'.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_team_size(int level);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_team_size(level)'
!                     'integer level'
  
  _See also_:
       *note omp_get_num_threads::, *note omp_get_level::, *note
*************** _Reference_:
*** 605,621 ****
  
  File: libgomp.info,  Node: omp_get_thread_limit,  Next: omp_get_thread_num,  Prev: omp_get_team_size,  Up: Runtime Library Routines
  
! 2.19 `omp_get_thread_limit' - Maximum number of threads
  =======================================================
  
  _Description_:
       Return the maximum number of threads of the program.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_thread_limit(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_thread_limit()'
  
  _See also_:
       *note omp_get_max_threads::, *note OMP_THREAD_LIMIT::
--- 603,619 ----
  
  File: libgomp.info,  Node: omp_get_thread_limit,  Next: omp_get_thread_num,  Prev: omp_get_team_size,  Up: Runtime Library Routines
  
! 2.19 'omp_get_thread_limit' - Maximum number of threads
  =======================================================
  
  _Description_:
       Return the maximum number of threads of the program.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_thread_limit(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_thread_limit()'
  
  _See also_:
       *note omp_get_max_threads::, *note OMP_THREAD_LIMIT::
*************** _Reference_:
*** 626,646 ****
  
  File: libgomp.info,  Node: omp_get_thread_num,  Next: omp_in_parallel,  Prev: omp_get_thread_limit,  Up: Runtime Library Routines
  
! 2.20 `omp_get_thread_num' - Current thread ID
  =============================================
  
  _Description_:
       Returns a unique thread identification number within the current
!      team.  In a sequential parts of the program, `omp_get_thread_num'
!      always returns 0.  In parallel regions the return value varies
!      from 0 to `omp_get_num_threads'-1 inclusive.  The return value of
!      the master thread of a team is always 0.
  
  _C/C++_:
!      _Prototype_:  `int omp_get_thread_num(void);'
  
  _Fortran_:
!      _Interface_:  `integer function omp_get_thread_num()'
  
  _See also_:
       *note omp_get_num_threads::, *note omp_get_ancestor_thread_num::
--- 624,644 ----
  
  File: libgomp.info,  Node: omp_get_thread_num,  Next: omp_in_parallel,  Prev: omp_get_thread_limit,  Up: Runtime Library Routines
  
! 2.20 'omp_get_thread_num' - Current thread ID
  =============================================
  
  _Description_:
       Returns a unique thread identification number within the current
!      team.  In a sequential parts of the program, 'omp_get_thread_num'
!      always returns 0.  In parallel regions the return value varies from
!      0 to 'omp_get_num_threads'-1 inclusive.  The return value of the
!      master thread of a team is always 0.
  
  _C/C++_:
!      _Prototype_:   'int omp_get_thread_num(void);'
  
  _Fortran_:
!      _Interface_:   'integer function omp_get_thread_num()'
  
  _See also_:
       *note omp_get_num_threads::, *note omp_get_ancestor_thread_num::
*************** _Reference_:
*** 651,669 ****
  
  File: libgomp.info,  Node: omp_in_parallel,  Next: omp_in_final,  Prev: omp_get_thread_num,  Up: Runtime Library Routines
  
! 2.21 `omp_in_parallel' - Whether a parallel region is active
  ============================================================
  
  _Description_:
!      This function returns `true' if currently running in parallel,
!      `false' otherwise.  Here, `true' and `false' represent their
       language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:  `int omp_in_parallel(void);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_in_parallel()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.6.
--- 649,667 ----
  
  File: libgomp.info,  Node: omp_in_parallel,  Next: omp_in_final,  Prev: omp_get_thread_num,  Up: Runtime Library Routines
  
! 2.21 'omp_in_parallel' - Whether a parallel region is active
  ============================================================
  
  _Description_:
!      This function returns 'true' if currently running in parallel,
!      'false' otherwise.  Here, 'true' and 'false' represent their
       language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:   'int omp_in_parallel(void);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_in_parallel()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.6.
*************** _Reference_:
*** 671,689 ****
  
  File: libgomp.info,  Node: omp_in_final,  Next: omp_is_initial_device,  Prev: omp_in_parallel,  Up: Runtime Library Routines
  
! 2.22 `omp_in_final' - Whether in final or included task region
  ==============================================================
  
  _Description_:
!      This function returns `true' if currently running in a final or
!      included task region, `false' otherwise.  Here, `true' and `false'
       represent their language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:  `int omp_in_final(void);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_in_final()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.21.
--- 669,687 ----
  
  File: libgomp.info,  Node: omp_in_final,  Next: omp_is_initial_device,  Prev: omp_in_parallel,  Up: Runtime Library Routines
  
! 2.22 'omp_in_final' - Whether in final or included task region
  ==============================================================
  
  _Description_:
!      This function returns 'true' if currently running in a final or
!      included task region, 'false' otherwise.  Here, 'true' and 'false'
       represent their language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:   'int omp_in_final(void);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_in_final()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.21.
*************** _Reference_:
*** 691,709 ****
  
  File: libgomp.info,  Node: omp_is_initial_device,  Next: omp_set_default_device,  Prev: omp_in_final,  Up: Runtime Library Routines
  
! 2.23 `omp_is_initial_device' - Whether executing on the host device
  ===================================================================
  
  _Description_:
!      This function returns `true' if currently running on the host
!      device, `false' otherwise.  Here, `true' and `false' represent
       their language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:  `int omp_is_initial_device(void);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_is_initial_device()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.34.
--- 689,707 ----
  
  File: libgomp.info,  Node: omp_is_initial_device,  Next: omp_set_default_device,  Prev: omp_in_final,  Up: Runtime Library Routines
  
! 2.23 'omp_is_initial_device' - Whether executing on the host device
  ===================================================================
  
  _Description_:
!      This function returns 'true' if currently running on the host
!      device, 'false' otherwise.  Here, 'true' and 'false' represent
       their language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:   'int omp_is_initial_device(void);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_is_initial_device()'
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 3.2.34.
*************** _Reference_:
*** 711,717 ****
  
  File: libgomp.info,  Node: omp_set_default_device,  Next: omp_set_dynamic,  Prev: omp_is_initial_device,  Up: Runtime Library Routines
  
! 2.24 `omp_set_default_device' - Set the default device for target regions
  =========================================================================
  
  _Description_:
--- 709,715 ----
  
  File: libgomp.info,  Node: omp_set_default_device,  Next: omp_set_dynamic,  Prev: omp_is_initial_device,  Up: Runtime Library Routines
  
! 2.24 'omp_set_default_device' - Set the default device for target regions
  =========================================================================
  
  _Description_:
*************** _Description_:
*** 719,729 ****
       The argument shall be a nonnegative device number.
  
  _C/C++_:
!      _Prototype_:  `void omp_set_default_device(int device_num);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_default_device(device_num)'
!                    `integer device_num'
  
  _See also_:
       *note OMP_DEFAULT_DEVICE::, *note omp_get_default_device::
--- 717,727 ----
       The argument shall be a nonnegative device number.
  
  _C/C++_:
!      _Prototype_:   'void omp_set_default_device(int device_num);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_default_device(device_num)'
!                     'integer device_num'
  
  _See also_:
       *note OMP_DEFAULT_DEVICE::, *note omp_get_default_device::
*************** _Reference_:
*** 734,754 ****
  
  File: libgomp.info,  Node: omp_set_dynamic,  Next: omp_set_max_active_levels,  Prev: omp_set_default_device,  Up: Runtime Library Routines
  
! 2.25 `omp_set_dynamic' - Enable/disable dynamic teams
  =====================================================
  
  _Description_:
       Enable or disable the dynamic adjustment of the number of threads
       within a team.  The function takes the language-specific equivalent
!      of `true' and `false', where `true' enables dynamic adjustment of
!      team sizes and `false' disables it.
  
  _C/C++_:
!      _Prototype_:  `void omp_set_dynamic(int dynamic_threads);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_dynamic(dynamic_threads)'
!                    `logical, intent(in) :: dynamic_threads'
  
  _See also_:
       *note OMP_DYNAMIC::, *note omp_get_dynamic::
--- 732,752 ----
  
  File: libgomp.info,  Node: omp_set_dynamic,  Next: omp_set_max_active_levels,  Prev: omp_set_default_device,  Up: Runtime Library Routines
  
! 2.25 'omp_set_dynamic' - Enable/disable dynamic teams
  =====================================================
  
  _Description_:
       Enable or disable the dynamic adjustment of the number of threads
       within a team.  The function takes the language-specific equivalent
!      of 'true' and 'false', where 'true' enables dynamic adjustment of
!      team sizes and 'false' disables it.
  
  _C/C++_:
!      _Prototype_:   'void omp_set_dynamic(int dynamic_threads);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_dynamic(dynamic_threads)'
!                     'logical, intent(in) :: dynamic_threads'
  
  _See also_:
       *note OMP_DYNAMIC::, *note omp_get_dynamic::
*************** _Reference_:
*** 759,765 ****
  
  File: libgomp.info,  Node: omp_set_max_active_levels,  Next: omp_set_nested,  Prev: omp_set_dynamic,  Up: Runtime Library Routines
  
! 2.26 `omp_set_max_active_levels' - Limits the number of active parallel regions
  ===============================================================================
  
  _Description_:
--- 757,763 ----
  
  File: libgomp.info,  Node: omp_set_max_active_levels,  Next: omp_set_nested,  Prev: omp_set_dynamic,  Up: Runtime Library Routines
  
! 2.26 'omp_set_max_active_levels' - Limits the number of active parallel regions
  ===============================================================================
  
  _Description_:
*************** _Description_:
*** 767,777 ****
       parallel regions.
  
  _C/C++_
!      _Prototype_:  `void omp_set_max_active_levels(int max_levels);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_max_active_levels(max_levels)'
!                    `integer max_levels'
  
  _See also_:
       *note omp_get_max_active_levels::, *note omp_get_active_level::
--- 765,775 ----
       parallel regions.
  
  _C/C++_
!      _Prototype_:   'void omp_set_max_active_levels(int max_levels);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_max_active_levels(max_levels)'
!                     'integer max_levels'
  
  _See also_:
       *note omp_get_max_active_levels::, *note omp_get_active_level::
*************** _Reference_:
*** 782,802 ****
  
  File: libgomp.info,  Node: omp_set_nested,  Next: omp_set_num_threads,  Prev: omp_set_max_active_levels,  Up: Runtime Library Routines
  
! 2.27 `omp_set_nested' - Enable/disable nested parallel regions
  ==============================================================
  
  _Description_:
       Enable or disable nested parallel regions, i.e., whether team
       members are allowed to create new teams.  The function takes the
!      language-specific equivalent of `true' and `false', where `true'
!      enables dynamic adjustment of team sizes and `false' disables it.
  
  _C/C++_:
!      _Prototype_:  `void omp_set_nested(int nested);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_nested(nested)'
!                    `logical, intent(in) :: nested'
  
  _See also_:
       *note OMP_NESTED::, *note omp_get_nested::
--- 780,800 ----
  
  File: libgomp.info,  Node: omp_set_nested,  Next: omp_set_num_threads,  Prev: omp_set_max_active_levels,  Up: Runtime Library Routines
  
! 2.27 'omp_set_nested' - Enable/disable nested parallel regions
  ==============================================================
  
  _Description_:
       Enable or disable nested parallel regions, i.e., whether team
       members are allowed to create new teams.  The function takes the
!      language-specific equivalent of 'true' and 'false', where 'true'
!      enables dynamic adjustment of team sizes and 'false' disables it.
  
  _C/C++_:
!      _Prototype_:   'void omp_set_nested(int nested);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_nested(nested)'
!                     'logical, intent(in) :: nested'
  
  _See also_:
       *note OMP_NESTED::, *note omp_get_nested::
*************** _Reference_:
*** 807,826 ****
  
  File: libgomp.info,  Node: omp_set_num_threads,  Next: omp_set_schedule,  Prev: omp_set_nested,  Up: Runtime Library Routines
  
! 2.28 `omp_set_num_threads' - Set upper team size limit
  ======================================================
  
  _Description_:
       Specifies the number of threads used by default in subsequent
!      parallel sections, if those do not specify a `num_threads' clause.
!      The argument of `omp_set_num_threads' shall be a positive integer.
  
  _C/C++_:
!      _Prototype_:  `void omp_set_num_threads(int num_threads);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_num_threads(num_threads)'
!                    `integer, intent(in) :: num_threads'
  
  _See also_:
       *note OMP_NUM_THREADS::, *note omp_get_num_threads::, *note
--- 805,824 ----
  
  File: libgomp.info,  Node: omp_set_num_threads,  Next: omp_set_schedule,  Prev: omp_set_nested,  Up: Runtime Library Routines
  
! 2.28 'omp_set_num_threads' - Set upper team size limit
  ======================================================
  
  _Description_:
       Specifies the number of threads used by default in subsequent
!      parallel sections, if those do not specify a 'num_threads' clause.
!      The argument of 'omp_set_num_threads' shall be a positive integer.
  
  _C/C++_:
!      _Prototype_:   'void omp_set_num_threads(int num_threads);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_num_threads(num_threads)'
!                     'integer, intent(in) :: num_threads'
  
  _See also_:
       *note OMP_NUM_THREADS::, *note omp_get_num_threads::, *note
*************** _Reference_:
*** 832,856 ****
  
  File: libgomp.info,  Node: omp_set_schedule,  Next: omp_init_lock,  Prev: omp_set_num_threads,  Up: Runtime Library Routines
  
! 2.29 `omp_set_schedule' - Set the runtime scheduling method
  ===========================================================
  
  _Description_:
       Sets the runtime scheduling method.  The KIND argument can have the
!      value `omp_sched_static', `omp_sched_dynamic', `omp_sched_guided'
!      or `omp_sched_auto'.  Except for `omp_sched_auto', the chunk size
       is set to the value of CHUNK_SIZE if positive, or to the default
!      value if zero or negative.  For `omp_sched_auto' the CHUNK_SIZE
       argument is ignored.
  
  _C/C++_
!      _Prototype_:  `void omp_set_schedule(omp_sched_t kind, int
!                    chunk_size);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_schedule(kind, chunk_size)'
!                    `integer(kind=omp_sched_kind) kind'
!                    `integer chunk_size'
  
  _See also_:
       *note omp_get_schedule:: *note OMP_SCHEDULE::
--- 830,854 ----
  
  File: libgomp.info,  Node: omp_set_schedule,  Next: omp_init_lock,  Prev: omp_set_num_threads,  Up: Runtime Library Routines
  
! 2.29 'omp_set_schedule' - Set the runtime scheduling method
  ===========================================================
  
  _Description_:
       Sets the runtime scheduling method.  The KIND argument can have the
!      value 'omp_sched_static', 'omp_sched_dynamic', 'omp_sched_guided'
!      or 'omp_sched_auto'.  Except for 'omp_sched_auto', the chunk size
       is set to the value of CHUNK_SIZE if positive, or to the default
!      value if zero or negative.  For 'omp_sched_auto' the CHUNK_SIZE
       argument is ignored.
  
  _C/C++_
!      _Prototype_:   'void omp_set_schedule(omp_sched_t kind, int
!                     chunk_size);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_schedule(kind, chunk_size)'
!                     'integer(kind=omp_sched_kind) kind'
!                     'integer chunk_size'
  
  _See also_:
       *note omp_get_schedule:: *note OMP_SCHEDULE::
*************** _Reference_:
*** 861,867 ****
  
  File: libgomp.info,  Node: omp_init_lock,  Next: omp_set_lock,  Prev: omp_set_schedule,  Up: Runtime Library Routines
  
! 2.30 `omp_init_lock' - Initialize simple lock
  =============================================
  
  _Description_:
--- 859,865 ----
  
  File: libgomp.info,  Node: omp_init_lock,  Next: omp_set_lock,  Prev: omp_set_schedule,  Up: Runtime Library Routines
  
! 2.30 'omp_init_lock' - Initialize simple lock
  =============================================
  
  _Description_:
*************** _Description_:
*** 869,879 ****
       unlocked state.
  
  _C/C++_:
!      _Prototype_:  `void omp_init_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_init_lock(svar)'
!                    `integer(omp_lock_kind), intent(out) :: svar'
  
  _See also_:
       *note omp_destroy_lock::
--- 867,877 ----
       unlocked state.
  
  _C/C++_:
!      _Prototype_:   'void omp_init_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_init_lock(svar)'
!                     'integer(omp_lock_kind), intent(out) :: svar'
  
  _See also_:
       *note omp_destroy_lock::
*************** _Reference_:
*** 884,904 ****
  
  File: libgomp.info,  Node: omp_set_lock,  Next: omp_test_lock,  Prev: omp_init_lock,  Up: Runtime Library Routines
  
! 2.31 `omp_set_lock' - Wait for and set simple lock
  ==================================================
  
  _Description_:
!      Before setting a simple lock, the lock variable must be
!      initialized by `omp_init_lock'.  The calling thread is blocked
!      until the lock is available.  If the lock is already held by the
!      current thread, a deadlock occurs.
  
  _C/C++_:
!      _Prototype_:  `void omp_set_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_lock(svar)'
!                    `integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_init_lock::, *note omp_test_lock::, *note
--- 882,902 ----
  
  File: libgomp.info,  Node: omp_set_lock,  Next: omp_test_lock,  Prev: omp_init_lock,  Up: Runtime Library Routines
  
! 2.31 'omp_set_lock' - Wait for and set simple lock
  ==================================================
  
  _Description_:
!      Before setting a simple lock, the lock variable must be initialized
!      by 'omp_init_lock'.  The calling thread is blocked until the lock
!      is available.  If the lock is already held by the current thread, a
!      deadlock occurs.
  
  _C/C++_:
!      _Prototype_:   'void omp_set_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_lock(svar)'
!                     'integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_init_lock::, *note omp_test_lock::, *note
*************** _Reference_:
*** 910,931 ****
  
  File: libgomp.info,  Node: omp_test_lock,  Next: omp_unset_lock,  Prev: omp_set_lock,  Up: Runtime Library Routines
  
! 2.32 `omp_test_lock' - Test and set simple lock if available
  ============================================================
  
  _Description_:
!      Before setting a simple lock, the lock variable must be
!      initialized by `omp_init_lock'.  Contrary to `omp_set_lock',
!      `omp_test_lock' does not block if the lock is not available.  This
!      function returns `true' upon success, `false' otherwise.  Here,
!      `true' and `false' represent their language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:  `int omp_test_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_test_lock(svar)'
!                    `integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_init_lock::, *note omp_set_lock::, *note omp_set_lock::
--- 908,929 ----
  
  File: libgomp.info,  Node: omp_test_lock,  Next: omp_unset_lock,  Prev: omp_set_lock,  Up: Runtime Library Routines
  
! 2.32 'omp_test_lock' - Test and set simple lock if available
  ============================================================
  
  _Description_:
!      Before setting a simple lock, the lock variable must be initialized
!      by 'omp_init_lock'.  Contrary to 'omp_set_lock', 'omp_test_lock'
!      does not block if the lock is not available.  This function returns
!      'true' upon success, 'false' otherwise.  Here, 'true' and 'false'
!      represent their language-specific counterparts.
  
  _C/C++_:
!      _Prototype_:   'int omp_test_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_test_lock(svar)'
!                     'integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_init_lock::, *note omp_set_lock::, *note omp_set_lock::
*************** _Reference_:
*** 936,958 ****
  
  File: libgomp.info,  Node: omp_unset_lock,  Next: omp_destroy_lock,  Prev: omp_test_lock,  Up: Runtime Library Routines
  
! 2.33 `omp_unset_lock' - Unset simple lock
  =========================================
  
  _Description_:
       A simple lock about to be unset must have been locked by
!      `omp_set_lock' or `omp_test_lock' before.  In addition, the lock
!      must be held by the thread calling `omp_unset_lock'.  Then, the
!      lock becomes unlocked.  If one or more threads attempted to set
!      the lock before, one of them is chosen to, again, set the lock to
       itself.
  
  _C/C++_:
!      _Prototype_:  `void omp_unset_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_unset_lock(svar)'
!                    `integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_set_lock::, *note omp_test_lock::
--- 934,956 ----
  
  File: libgomp.info,  Node: omp_unset_lock,  Next: omp_destroy_lock,  Prev: omp_test_lock,  Up: Runtime Library Routines
  
! 2.33 'omp_unset_lock' - Unset simple lock
  =========================================
  
  _Description_:
       A simple lock about to be unset must have been locked by
!      'omp_set_lock' or 'omp_test_lock' before.  In addition, the lock
!      must be held by the thread calling 'omp_unset_lock'.  Then, the
!      lock becomes unlocked.  If one or more threads attempted to set the
!      lock before, one of them is chosen to, again, set the lock to
       itself.
  
  _C/C++_:
!      _Prototype_:   'void omp_unset_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_unset_lock(svar)'
!                     'integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_set_lock::, *note omp_test_lock::
*************** _Reference_:
*** 963,969 ****
  
  File: libgomp.info,  Node: omp_destroy_lock,  Next: omp_init_nest_lock,  Prev: omp_unset_lock,  Up: Runtime Library Routines
  
! 2.34 `omp_destroy_lock' - Destroy simple lock
  =============================================
  
  _Description_:
--- 961,967 ----
  
  File: libgomp.info,  Node: omp_destroy_lock,  Next: omp_init_nest_lock,  Prev: omp_unset_lock,  Up: Runtime Library Routines
  
! 2.34 'omp_destroy_lock' - Destroy simple lock
  =============================================
  
  _Description_:
*************** _Description_:
*** 971,981 ****
       must be in the unlocked state.
  
  _C/C++_:
!      _Prototype_:  `void omp_destroy_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_destroy_lock(svar)'
!                    `integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_init_lock::
--- 969,979 ----
       must be in the unlocked state.
  
  _C/C++_:
!      _Prototype_:   'void omp_destroy_lock(omp_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_destroy_lock(svar)'
!                     'integer(omp_lock_kind), intent(inout) :: svar'
  
  _See also_:
       *note omp_init_lock::
*************** _Reference_:
*** 986,992 ****
  
  File: libgomp.info,  Node: omp_init_nest_lock,  Next: omp_set_nest_lock,  Prev: omp_destroy_lock,  Up: Runtime Library Routines
  
! 2.35 `omp_init_nest_lock' - Initialize nested lock
  ==================================================
  
  _Description_:
--- 984,990 ----
  
  File: libgomp.info,  Node: omp_init_nest_lock,  Next: omp_set_nest_lock,  Prev: omp_destroy_lock,  Up: Runtime Library Routines
  
! 2.35 'omp_init_nest_lock' - Initialize nested lock
  ==================================================
  
  _Description_:
*************** _Description_:
*** 994,1004 ****
       unlocked state and the nesting count is set to zero.
  
  _C/C++_:
!      _Prototype_:  `void omp_init_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_init_nest_lock(nvar)'
!                    `integer(omp_nest_lock_kind), intent(out) :: nvar'
  
  _See also_:
       *note omp_destroy_nest_lock::
--- 992,1002 ----
       unlocked state and the nesting count is set to zero.
  
  _C/C++_:
!      _Prototype_:   'void omp_init_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_init_nest_lock(nvar)'
!                     'integer(omp_nest_lock_kind), intent(out) :: nvar'
  
  _See also_:
       *note omp_destroy_nest_lock::
*************** _Reference_:
*** 1009,1030 ****
  
  File: libgomp.info,  Node: omp_set_nest_lock,  Next: omp_test_nest_lock,  Prev: omp_init_nest_lock,  Up: Runtime Library Routines
  
! 2.36 `omp_set_nest_lock' - Wait for and set nested lock
  =======================================================
  
  _Description_:
!      Before setting a nested lock, the lock variable must be
!      initialized by `omp_init_nest_lock'.  The calling thread is
!      blocked until the lock is available.  If the lock is already held
!      by the current thread, the nesting count for the lock is
!      incremented.
  
  _C/C++_:
!      _Prototype_:  `void omp_set_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_set_nest_lock(nvar)'
!                    `integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_init_nest_lock::, *note omp_unset_nest_lock::
--- 1007,1027 ----
  
  File: libgomp.info,  Node: omp_set_nest_lock,  Next: omp_test_nest_lock,  Prev: omp_init_nest_lock,  Up: Runtime Library Routines
  
! 2.36 'omp_set_nest_lock' - Wait for and set nested lock
  =======================================================
  
  _Description_:
!      Before setting a nested lock, the lock variable must be initialized
!      by 'omp_init_nest_lock'.  The calling thread is blocked until the
!      lock is available.  If the lock is already held by the current
!      thread, the nesting count for the lock is incremented.
  
  _C/C++_:
!      _Prototype_:   'void omp_set_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_set_nest_lock(nvar)'
!                     'integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_init_nest_lock::, *note omp_unset_nest_lock::
*************** _Reference_:
*** 1035,1057 ****
  
  File: libgomp.info,  Node: omp_test_nest_lock,  Next: omp_unset_nest_lock,  Prev: omp_set_nest_lock,  Up: Runtime Library Routines
  
! 2.37 `omp_test_nest_lock' - Test and set nested lock if available
  =================================================================
  
  _Description_:
!      Before setting a nested lock, the lock variable must be
!      initialized by `omp_init_nest_lock'.  Contrary to
!      `omp_set_nest_lock', `omp_test_nest_lock' does not block if the
!      lock is not available.  If the lock is already held by the current
!      thread, the new nesting count is returned.  Otherwise, the return
!      value equals zero.
  
  _C/C++_:
!      _Prototype_:  `int omp_test_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `logical function omp_test_nest_lock(nvar)'
!                    `integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_init_lock::, *note omp_set_lock::, *note omp_set_lock::
--- 1032,1053 ----
  
  File: libgomp.info,  Node: omp_test_nest_lock,  Next: omp_unset_nest_lock,  Prev: omp_set_nest_lock,  Up: Runtime Library Routines
  
! 2.37 'omp_test_nest_lock' - Test and set nested lock if available
  =================================================================
  
  _Description_:
!      Before setting a nested lock, the lock variable must be initialized
!      by 'omp_init_nest_lock'.  Contrary to 'omp_set_nest_lock',
!      'omp_test_nest_lock' does not block if the lock is not available.
!      If the lock is already held by the current thread, the new nesting
!      count is returned.  Otherwise, the return value equals zero.
  
  _C/C++_:
!      _Prototype_:   'int omp_test_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'logical function omp_test_nest_lock(nvar)'
!                     'integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_init_lock::, *note omp_set_lock::, *note omp_set_lock::
*************** _Reference_:
*** 1062,1085 ****
  
  File: libgomp.info,  Node: omp_unset_nest_lock,  Next: omp_destroy_nest_lock,  Prev: omp_test_nest_lock,  Up: Runtime Library Routines
  
! 2.38 `omp_unset_nest_lock' - Unset nested lock
  ==============================================
  
  _Description_:
       A nested lock about to be unset must have been locked by
!      `omp_set_nested_lock' or `omp_test_nested_lock' before.  In
       addition, the lock must be held by the thread calling
!      `omp_unset_nested_lock'.  If the nesting count drops to zero, the
       lock becomes unlocked.  If one ore more threads attempted to set
       the lock before, one of them is chosen to, again, set the lock to
       itself.
  
  _C/C++_:
!      _Prototype_:  `void omp_unset_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_unset_nest_lock(nvar)'
!                    `integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_set_nest_lock::
--- 1058,1081 ----
  
  File: libgomp.info,  Node: omp_unset_nest_lock,  Next: omp_destroy_nest_lock,  Prev: omp_test_nest_lock,  Up: Runtime Library Routines
  
! 2.38 'omp_unset_nest_lock' - Unset nested lock
  ==============================================
  
  _Description_:
       A nested lock about to be unset must have been locked by
!      'omp_set_nested_lock' or 'omp_test_nested_lock' before.  In
       addition, the lock must be held by the thread calling
!      'omp_unset_nested_lock'.  If the nesting count drops to zero, the
       lock becomes unlocked.  If one ore more threads attempted to set
       the lock before, one of them is chosen to, again, set the lock to
       itself.
  
  _C/C++_:
!      _Prototype_:   'void omp_unset_nest_lock(omp_nest_lock_t *lock);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_unset_nest_lock(nvar)'
!                     'integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_set_nest_lock::
*************** _Reference_:
*** 1090,1096 ****
  
  File: libgomp.info,  Node: omp_destroy_nest_lock,  Next: omp_get_wtick,  Prev: omp_unset_nest_lock,  Up: Runtime Library Routines
  
! 2.39 `omp_destroy_nest_lock' - Destroy nested lock
  ==================================================
  
  _Description_:
--- 1086,1092 ----
  
  File: libgomp.info,  Node: omp_destroy_nest_lock,  Next: omp_get_wtick,  Prev: omp_unset_nest_lock,  Up: Runtime Library Routines
  
! 2.39 'omp_destroy_nest_lock' - Destroy nested lock
  ==================================================
  
  _Description_:
*************** _Description_:
*** 1099,1109 ****
       zero.
  
  _C/C++_:
!      _Prototype_:  `void omp_destroy_nest_lock(omp_nest_lock_t *);'
  
  _Fortran_:
!      _Interface_:  `subroutine omp_destroy_nest_lock(nvar)'
!                    `integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_init_lock::
--- 1095,1105 ----
       zero.
  
  _C/C++_:
!      _Prototype_:   'void omp_destroy_nest_lock(omp_nest_lock_t *);'
  
  _Fortran_:
!      _Interface_:   'subroutine omp_destroy_nest_lock(nvar)'
!                     'integer(omp_nest_lock_kind), intent(inout) :: nvar'
  
  _See also_:
       *note omp_init_lock::
*************** _Reference_:
*** 1114,1120 ****
  
  File: libgomp.info,  Node: omp_get_wtick,  Next: omp_get_wtime,  Prev: omp_destroy_nest_lock,  Up: Runtime Library Routines
  
! 2.40 `omp_get_wtick' - Get timer precision
  ==========================================
  
  _Description_:
--- 1110,1116 ----
  
  File: libgomp.info,  Node: omp_get_wtick,  Next: omp_get_wtime,  Prev: omp_destroy_nest_lock,  Up: Runtime Library Routines
  
! 2.40 'omp_get_wtick' - Get timer precision
  ==========================================
  
  _Description_:
*************** _Description_:
*** 1122,1131 ****
       successive clock ticks.
  
  _C/C++_:
!      _Prototype_:  `double omp_get_wtick(void);'
  
  _Fortran_:
!      _Interface_:  `double precision function omp_get_wtick()'
  
  _See also_:
       *note omp_get_wtime::
--- 1118,1127 ----
       successive clock ticks.
  
  _C/C++_:
!      _Prototype_:   'double omp_get_wtick(void);'
  
  _Fortran_:
!      _Interface_:   'double precision function omp_get_wtick()'
  
  _See also_:
       *note omp_get_wtime::
*************** _Reference_:
*** 1136,1142 ****
  
  File: libgomp.info,  Node: omp_get_wtime,  Prev: omp_get_wtick,  Up: Runtime Library Routines
  
! 2.41 `omp_get_wtime' - Elapsed wall clock time
  ==============================================
  
  _Description_:
--- 1132,1138 ----
  
  File: libgomp.info,  Node: omp_get_wtime,  Prev: omp_get_wtick,  Up: Runtime Library Routines
  
! 2.41 'omp_get_wtime' - Elapsed wall clock time
  ==============================================
  
  _Description_:
*************** _Description_:
*** 1147,1156 ****
       execution of the program.
  
  _C/C++_:
!      _Prototype_:  `double omp_get_wtime(void);'
  
  _Fortran_:
!      _Interface_:  `double precision function omp_get_wtime()'
  
  _See also_:
       *note omp_get_wtick::
--- 1143,1152 ----
       execution of the program.
  
  _C/C++_:
!      _Prototype_:   'double omp_get_wtime(void);'
  
  _Fortran_:
!      _Interface_:   'double precision function omp_get_wtime()'
  
  _See also_:
       *note omp_get_wtick::
*************** File: libgomp.info,  Node: Environment V
*** 1164,1172 ****
  3 Environment Variables
  ***********************
  
! The environment variables which beginning with `OMP_' are defined by
  section 4 of the OpenMP specification in version 4.5, while those
! beginning with `GOMP_' are GNU extensions.
  
  * Menu:
  
--- 1160,1168 ----
  3 Environment Variables
  ***********************
  
! The environment variables which beginning with 'OMP_' are defined by
  section 4 of the OpenMP specification in version 4.5, while those
! beginning with 'GOMP_' are GNU extensions.
  
  * Menu:
  
*************** beginning with `GOMP_' are GNU extension
*** 1193,1205 ****
  
  File: libgomp.info,  Node: OMP_CANCELLATION,  Next: OMP_DISPLAY_ENV,  Up: Environment Variables
  
! 3.1 `OMP_CANCELLATION' - Set whether cancellation is activated
  ==============================================================
  
  _Description_:
!      If set to `TRUE', the cancellation is activated.  If set to
!      `FALSE' or if unset, cancellation is disabled and the `cancel'
!      construct is ignored.
  
  _See also_:
       *note omp_get_cancellation::
--- 1189,1201 ----
  
  File: libgomp.info,  Node: OMP_CANCELLATION,  Next: OMP_DISPLAY_ENV,  Up: Environment Variables
  
! 3.1 'OMP_CANCELLATION' - Set whether cancellation is activated
  ==============================================================
  
  _Description_:
!      If set to 'TRUE', the cancellation is activated.  If set to 'FALSE'
!      or if unset, cancellation is disabled and the 'cancel' construct is
!      ignored.
  
  _See also_:
       *note omp_get_cancellation::
*************** _Reference_:
*** 1210,1224 ****
  
  File: libgomp.info,  Node: OMP_DISPLAY_ENV,  Next: OMP_DEFAULT_DEVICE,  Prev: OMP_CANCELLATION,  Up: Environment Variables
  
! 3.2 `OMP_DISPLAY_ENV' - Show OpenMP version and environment variables
  =====================================================================
  
  _Description_:
!      If set to `TRUE', the OpenMP version number and the values
       associated with the OpenMP environment variables are printed to
!      `stderr'.  If set to `VERBOSE', it additionally shows the value of
       the environment variables which are GNU extensions.  If undefined
!      or set to `FALSE', this information will not be shown.
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 4.12
--- 1206,1220 ----
  
  File: libgomp.info,  Node: OMP_DISPLAY_ENV,  Next: OMP_DEFAULT_DEVICE,  Prev: OMP_CANCELLATION,  Up: Environment Variables
  
! 3.2 'OMP_DISPLAY_ENV' - Show OpenMP version and environment variables
  =====================================================================
  
  _Description_:
!      If set to 'TRUE', the OpenMP version number and the values
       associated with the OpenMP environment variables are printed to
!      'stderr'.  If set to 'VERBOSE', it additionally shows the value of
       the environment variables which are GNU extensions.  If undefined
!      or set to 'FALSE', this information will not be shown.
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 4.12
*************** _Reference_:
*** 1226,1240 ****
  
  File: libgomp.info,  Node: OMP_DEFAULT_DEVICE,  Next: OMP_DYNAMIC,  Prev: OMP_DISPLAY_ENV,  Up: Environment Variables
  
! 3.3 `OMP_DEFAULT_DEVICE' - Set the device used in target regions
  ================================================================
  
  _Description_:
!      Set to choose the device which is used in a `target' region,
!      unless the value is overridden by `omp_set_default_device' or by a
!      `device' clause.  The value shall be the nonnegative device
!      number. If no device with the given device number exists, the code
!      is executed on the host.  If unset, device number 0 will be used.
  
  _See also_:
       *note omp_get_default_device::, *note omp_set_default_device::,
--- 1222,1236 ----
  
  File: libgomp.info,  Node: OMP_DEFAULT_DEVICE,  Next: OMP_DYNAMIC,  Prev: OMP_DISPLAY_ENV,  Up: Environment Variables
  
! 3.3 'OMP_DEFAULT_DEVICE' - Set the device used in target regions
  ================================================================
  
  _Description_:
!      Set to choose the device which is used in a 'target' region, unless
!      the value is overridden by 'omp_set_default_device' or by a
!      'device' clause.  The value shall be the nonnegative device number.
!      If no device with the given device number exists, the code is
!      executed on the host.  If unset, device number 0 will be used.
  
  _See also_:
       *note omp_get_default_device::, *note omp_set_default_device::,
*************** _Reference_:
*** 1245,1258 ****
  
  File: libgomp.info,  Node: OMP_DYNAMIC,  Next: OMP_MAX_ACTIVE_LEVELS,  Prev: OMP_DEFAULT_DEVICE,  Up: Environment Variables
  
! 3.4 `OMP_DYNAMIC' - Dynamic adjustment of threads
  =================================================
  
  _Description_:
       Enable or disable the dynamic adjustment of the number of threads
       within a team.  The value of this environment variable shall be
!      `TRUE' or `FALSE'.  If undefined, dynamic adjustment is disabled
!      by default.
  
  _See also_:
       *note omp_set_dynamic::
--- 1241,1254 ----
  
  File: libgomp.info,  Node: OMP_DYNAMIC,  Next: OMP_MAX_ACTIVE_LEVELS,  Prev: OMP_DEFAULT_DEVICE,  Up: Environment Variables
  
! 3.4 'OMP_DYNAMIC' - Dynamic adjustment of threads
  =================================================
  
  _Description_:
       Enable or disable the dynamic adjustment of the number of threads
       within a team.  The value of this environment variable shall be
!      'TRUE' or 'FALSE'.  If undefined, dynamic adjustment is disabled by
!      default.
  
  _See also_:
       *note omp_set_dynamic::
*************** _Reference_:
*** 1263,1269 ****
  
  File: libgomp.info,  Node: OMP_MAX_ACTIVE_LEVELS,  Next: OMP_MAX_TASK_PRIORITY,  Prev: OMP_DYNAMIC,  Up: Environment Variables
  
! 3.5 `OMP_MAX_ACTIVE_LEVELS' - Set the maximum number of nested parallel regions
  ===============================================================================
  
  _Description_:
--- 1259,1265 ----
  
  File: libgomp.info,  Node: OMP_MAX_ACTIVE_LEVELS,  Next: OMP_MAX_TASK_PRIORITY,  Prev: OMP_DYNAMIC,  Up: Environment Variables
  
! 3.5 'OMP_MAX_ACTIVE_LEVELS' - Set the maximum number of nested parallel regions
  ===============================================================================
  
  _Description_:
*************** _Reference_:
*** 1280,1292 ****
  
  File: libgomp.info,  Node: OMP_MAX_TASK_PRIORITY,  Next: OMP_NESTED,  Prev: OMP_MAX_ACTIVE_LEVELS,  Up: Environment Variables
  
! 3.6 `OMP_MAX_TASK_PRIORITY' - Set the maximum priority
  ======================================================
  
! number that can be set for a task.  
  _Description_:
!      Specifies the initial value for the maximum priority value that
!      can be set for a task.  The value of this variable shall be a
       non-negative integer, and zero is allowed.  If undefined, the
       default priority is 0.
  
--- 1276,1288 ----
  
  File: libgomp.info,  Node: OMP_MAX_TASK_PRIORITY,  Next: OMP_NESTED,  Prev: OMP_MAX_ACTIVE_LEVELS,  Up: Environment Variables
  
! 3.6 'OMP_MAX_TASK_PRIORITY' - Set the maximum priority
  ======================================================
  
! number that can be set for a task.
  _Description_:
!      Specifies the initial value for the maximum priority value that can
!      be set for a task.  The value of this variable shall be a
       non-negative integer, and zero is allowed.  If undefined, the
       default priority is 0.
  
*************** _Reference_:
*** 1299,1311 ****
  
  File: libgomp.info,  Node: OMP_NESTED,  Next: OMP_NUM_THREADS,  Prev: OMP_MAX_TASK_PRIORITY,  Up: Environment Variables
  
! 3.7 `OMP_NESTED' - Nested parallel regions
  ==========================================
  
  _Description_:
       Enable or disable nested parallel regions, i.e., whether team
       members are allowed to create new teams.  The value of this
!      environment variable shall be `TRUE' or `FALSE'.  If undefined,
       nested parallel regions are disabled by default.
  
  _See also_:
--- 1295,1307 ----
  
  File: libgomp.info,  Node: OMP_NESTED,  Next: OMP_NUM_THREADS,  Prev: OMP_MAX_TASK_PRIORITY,  Up: Environment Variables
  
! 3.7 'OMP_NESTED' - Nested parallel regions
  ==========================================
  
  _Description_:
       Enable or disable nested parallel regions, i.e., whether team
       members are allowed to create new teams.  The value of this
!      environment variable shall be 'TRUE' or 'FALSE'.  If undefined,
       nested parallel regions are disabled by default.
  
  _See also_:
*************** _Reference_:
*** 1317,1331 ****
  
  File: libgomp.info,  Node: OMP_NUM_THREADS,  Next: OMP_PROC_BIND,  Prev: OMP_NESTED,  Up: Environment Variables
  
! 3.8 `OMP_NUM_THREADS' - Specifies the number of threads to use
  ==============================================================
  
  _Description_:
!      Specifies the default number of threads to use in parallel
!      regions.  The value of this variable shall be a comma-separated
!      list of positive integers; the value specified the number of
!      threads to use for the corresponding nested level.  If undefined
!      one thread per CPU is used.
  
  _See also_:
       *note omp_set_num_threads::
--- 1313,1327 ----
  
  File: libgomp.info,  Node: OMP_NUM_THREADS,  Next: OMP_PROC_BIND,  Prev: OMP_NESTED,  Up: Environment Variables
  
! 3.8 'OMP_NUM_THREADS' - Specifies the number of threads to use
  ==============================================================
  
  _Description_:
!      Specifies the default number of threads to use in parallel regions.
!      The value of this variable shall be a comma-separated list of
!      positive integers; the value specified the number of threads to use
!      for the corresponding nested level.  If undefined one thread per
!      CPU is used.
  
  _See also_:
       *note omp_set_num_threads::
*************** _Reference_:
*** 1336,1357 ****
  
  File: libgomp.info,  Node: OMP_PROC_BIND,  Next: OMP_PLACES,  Prev: OMP_NUM_THREADS,  Up: Environment Variables
  
! 3.9 `OMP_PROC_BIND' - Whether theads may be moved between CPUs
  ==============================================================
  
  _Description_:
       Specifies whether threads may be moved between processors.  If set
!      to `TRUE', OpenMP theads should not be moved; if set to `FALSE'
       they may be moved.  Alternatively, a comma separated list with the
!      values `MASTER', `CLOSE' and `SPREAD' can be used to specify the
       thread affinity policy for the corresponding nesting level.  With
!      `MASTER' the worker threads are in the same place partition as the
!      master thread.  With `CLOSE' those are kept close to the master
!      thread in contiguous place partitions.  And with `SPREAD' a sparse
       distribution across the place partitions is used.
  
!      When undefined, `OMP_PROC_BIND' defaults to `TRUE' when
!      `OMP_PLACES' or `GOMP_CPU_AFFINITY' is set and `FALSE' otherwise.
  
  _See also_:
       *note OMP_PLACES::, *note GOMP_CPU_AFFINITY::, *note
--- 1332,1353 ----
  
  File: libgomp.info,  Node: OMP_PROC_BIND,  Next: OMP_PLACES,  Prev: OMP_NUM_THREADS,  Up: Environment Variables
  
! 3.9 'OMP_PROC_BIND' - Whether theads may be moved between CPUs
  ==============================================================
  
  _Description_:
       Specifies whether threads may be moved between processors.  If set
!      to 'TRUE', OpenMP theads should not be moved; if set to 'FALSE'
       they may be moved.  Alternatively, a comma separated list with the
!      values 'MASTER', 'CLOSE' and 'SPREAD' can be used to specify the
       thread affinity policy for the corresponding nesting level.  With
!      'MASTER' the worker threads are in the same place partition as the
!      master thread.  With 'CLOSE' those are kept close to the master
!      thread in contiguous place partitions.  And with 'SPREAD' a sparse
       distribution across the place partitions is used.
  
!      When undefined, 'OMP_PROC_BIND' defaults to 'TRUE' when
!      'OMP_PLACES' or 'GOMP_CPU_AFFINITY' is set and 'FALSE' otherwise.
  
  _See also_:
       *note OMP_PLACES::, *note GOMP_CPU_AFFINITY::, *note
*************** _Reference_:
*** 1363,1381 ****
  
  File: libgomp.info,  Node: OMP_PLACES,  Next: OMP_STACKSIZE,  Prev: OMP_PROC_BIND,  Up: Environment Variables
  
! 3.10 `OMP_PLACES' - Specifies on which CPUs the theads should be placed
  =======================================================================
  
  _Description_:
!      The thread placement can be either specified using an abstract
!      name or by an explicit list of the places.  The abstract names
!      `threads', `cores' and `sockets' can be optionally followed by a
       positive number in parentheses, which denotes the how many places
!      shall be created.  With `threads' each place corresponds to a
!      single hardware thread; `cores' to a single core with the
!      corresponding number of hardware threads; and with `sockets' the
       place corresponds to a single socket.  The resulting placement can
!      be shown by setting the `OMP_DISPLAY_ENV' environment variable.
  
       Alternatively, the placement can be specified explicitly as
       comma-separated list of places.  A place is specified by set of
--- 1359,1377 ----
  
  File: libgomp.info,  Node: OMP_PLACES,  Next: OMP_STACKSIZE,  Prev: OMP_PROC_BIND,  Up: Environment Variables
  
! 3.10 'OMP_PLACES' - Specifies on which CPUs the theads should be placed
  =======================================================================
  
  _Description_:
!      The thread placement can be either specified using an abstract name
!      or by an explicit list of the places.  The abstract names
!      'threads', 'cores' and 'sockets' can be optionally followed by a
       positive number in parentheses, which denotes the how many places
!      shall be created.  With 'threads' each place corresponds to a
!      single hardware thread; 'cores' to a single core with the
!      corresponding number of hardware threads; and with 'sockets' the
       place corresponds to a single socket.  The resulting placement can
!      be shown by setting the 'OMP_DISPLAY_ENV' environment variable.
  
       Alternatively, the placement can be specified explicitly as
       comma-separated list of places.  A place is specified by set of
*************** _Description_:
*** 1388,1398 ****
       after after the hardware thread number or the place.  Optionally,
       the length can be followed by a colon and the stride number -
       otherwise a unit stride is assumed.  For instance, the following
!      specifies the same places list: `"{0,1,2}, {3,4,6}, {7,8,9},
!      {10,11,12}"'; `"{0:3}, {3:3}, {7:3}, {10:3}"'; and `"{0:2}:4:3"'.
  
!      If `OMP_PLACES' and `GOMP_CPU_AFFINITY' are unset and
!      `OMP_PROC_BIND' is either unset or `false', threads may be moved
       between CPUs following no placement policy.
  
  _See also_:
--- 1384,1394 ----
       after after the hardware thread number or the place.  Optionally,
       the length can be followed by a colon and the stride number -
       otherwise a unit stride is assumed.  For instance, the following
!      specifies the same places list: '"{0,1,2}, {3,4,6}, {7,8,9},
!      {10,11,12}"'; '"{0:3}, {3:3}, {7:3}, {10:3}"'; and '"{0:2}:4:3"'.
  
!      If 'OMP_PLACES' and 'GOMP_CPU_AFFINITY' are unset and
!      'OMP_PROC_BIND' is either unset or 'false', threads may be moved
       between CPUs following no placement policy.
  
  _See also_:
*************** _Reference_:
*** 1405,1422 ****
  
  File: libgomp.info,  Node: OMP_STACKSIZE,  Next: OMP_SCHEDULE,  Prev: OMP_PLACES,  Up: Environment Variables
  
! 3.11 `OMP_STACKSIZE' - Set default thread stack size
  ====================================================
  
  _Description_:
       Set the default thread stack size in kilobytes, unless the number
!      is suffixed by `B', `K', `M' or `G', in which case the size is,
!      respectively, in bytes, kilobytes, megabytes or gigabytes.  This
!      is different from `pthread_attr_setstacksize' which gets the
!      number of bytes as an argument.  If the stack size cannot be set
!      due to system constraints, an error is reported and the initial
!      stack size is left unchanged.  If undefined, the stack size is
!      system dependent.
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 4.7
--- 1401,1418 ----
  
  File: libgomp.info,  Node: OMP_STACKSIZE,  Next: OMP_SCHEDULE,  Prev: OMP_PLACES,  Up: Environment Variables
  
! 3.11 'OMP_STACKSIZE' - Set default thread stack size
  ====================================================
  
  _Description_:
       Set the default thread stack size in kilobytes, unless the number
!      is suffixed by 'B', 'K', 'M' or 'G', in which case the size is,
!      respectively, in bytes, kilobytes, megabytes or gigabytes.  This is
!      different from 'pthread_attr_setstacksize' which gets the number of
!      bytes as an argument.  If the stack size cannot be set due to
!      system constraints, an error is reported and the initial stack size
!      is left unchanged.  If undefined, the stack size is system
!      dependent.
  
  _Reference_:
       OpenMP specification v4.5 (http://www.openmp.org/), Section 4.7
*************** _Reference_:
*** 1424,1438 ****
  
  File: libgomp.info,  Node: OMP_SCHEDULE,  Next: OMP_THREAD_LIMIT,  Prev: OMP_STACKSIZE,  Up: Environment Variables
  
! 3.12 `OMP_SCHEDULE' - How threads are scheduled
  ===============================================
  
  _Description_:
!      Allows to specify `schedule type' and `chunk size'.  The value of
!      the variable shall have the form: `type[,chunk]' where `type' is
!      one of `static', `dynamic', `guided' or `auto' The optional
!      `chunk' size shall be a positive integer.  If undefined, dynamic
!      scheduling and a chunk size of 1 is used.
  
  _See also_:
       *note omp_set_schedule::
--- 1420,1434 ----
  
  File: libgomp.info,  Node: OMP_SCHEDULE,  Next: OMP_THREAD_LIMIT,  Prev: OMP_STACKSIZE,  Up: Environment Variables
  
! 3.12 'OMP_SCHEDULE' - How threads are scheduled
  ===============================================
  
  _Description_:
!      Allows to specify 'schedule type' and 'chunk size'.  The value of
!      the variable shall have the form: 'type[,chunk]' where 'type' is
!      one of 'static', 'dynamic', 'guided' or 'auto' The optional 'chunk'
!      size shall be a positive integer.  If undefined, dynamic scheduling
!      and a chunk size of 1 is used.
  
  _See also_:
       *note omp_set_schedule::
*************** _Reference_:
*** 1444,1450 ****
  
  File: libgomp.info,  Node: OMP_THREAD_LIMIT,  Next: OMP_WAIT_POLICY,  Prev: OMP_SCHEDULE,  Up: Environment Variables
  
! 3.13 `OMP_THREAD_LIMIT' - Set the maximum number of threads
  ===========================================================
  
  _Description_:
--- 1440,1446 ----
  
  File: libgomp.info,  Node: OMP_THREAD_LIMIT,  Next: OMP_WAIT_POLICY,  Prev: OMP_SCHEDULE,  Up: Environment Variables
  
! 3.13 'OMP_THREAD_LIMIT' - Set the maximum number of threads
  ===========================================================
  
  _Description_:
*************** _Reference_:
*** 1461,1473 ****
  
  File: libgomp.info,  Node: OMP_WAIT_POLICY,  Next: GOMP_CPU_AFFINITY,  Prev: OMP_THREAD_LIMIT,  Up: Environment Variables
  
! 3.14 `OMP_WAIT_POLICY' - How waiting threads are handled
  ========================================================
  
  _Description_:
       Specifies whether waiting threads should be active or passive.  If
!      the value is `PASSIVE', waiting threads should not consume CPU
!      power while waiting; while the value is `ACTIVE' specifies that
       they should.  If undefined, threads wait actively for a short time
       before waiting passively.
  
--- 1457,1469 ----
  
  File: libgomp.info,  Node: OMP_WAIT_POLICY,  Next: GOMP_CPU_AFFINITY,  Prev: OMP_THREAD_LIMIT,  Up: Environment Variables
  
! 3.14 'OMP_WAIT_POLICY' - How waiting threads are handled
  ========================================================
  
  _Description_:
       Specifies whether waiting threads should be active or passive.  If
!      the value is 'PASSIVE', waiting threads should not consume CPU
!      power while waiting; while the value is 'ACTIVE' specifies that
       they should.  If undefined, threads wait actively for a short time
       before waiting passively.
  
*************** _Reference_:
*** 1480,1486 ****
  
  File: libgomp.info,  Node: GOMP_CPU_AFFINITY,  Next: GOMP_DEBUG,  Prev: OMP_WAIT_POLICY,  Up: Environment Variables
  
! 3.15 `GOMP_CPU_AFFINITY' - Bind threads to specific CPUs
  ========================================================
  
  _Description_:
--- 1476,1482 ----
  
  File: libgomp.info,  Node: GOMP_CPU_AFFINITY,  Next: GOMP_DEBUG,  Prev: OMP_WAIT_POLICY,  Up: Environment Variables
  
! 3.15 'GOMP_CPU_AFFINITY' - Bind threads to specific CPUs
  ========================================================
  
  _Description_:
*************** _Description_:
*** 1488,1513 ****
       space-separated or comma-separated list of CPUs.  This list may
       contain different kinds of entries: either single CPU numbers in
       any order, a range of CPUs (M-N) or a range with some stride
!      (M-N:S).  CPU numbers are zero based.  For example,
!      `GOMP_CPU_AFFINITY="0 3 1-2 4-15:2"' will bind the initial thread
       to CPU 0, the second to CPU 3, the third to CPU 1, the fourth to
       CPU 2, the fifth to CPU 4, the sixth through tenth to CPUs 6, 8,
       10, 12, and 14 respectively and then start assigning back from the
!      beginning of the list.  `GOMP_CPU_AFFINITY=0' binds all threads to
       CPU 0.
  
       There is no libgomp library routine to determine whether a CPU
       affinity specification is in effect.  As a workaround,
!      language-specific library functions, e.g., `getenv' in C or
!      `GET_ENVIRONMENT_VARIABLE' in Fortran, may be used to query the
!      setting of the `GOMP_CPU_AFFINITY' environment variable.  A
!      defined CPU affinity on startup cannot be changed or disabled
!      during the runtime of the application.
  
!      If both `GOMP_CPU_AFFINITY' and `OMP_PROC_BIND' are set,
!      `OMP_PROC_BIND' has a higher precedence.  If neither has been set
!      and `OMP_PROC_BIND' is unset, or when `OMP_PROC_BIND' is set to
!      `FALSE', the host system will handle the assignment of threads to
       CPUs.
  
  _See also_:
--- 1484,1509 ----
       space-separated or comma-separated list of CPUs.  This list may
       contain different kinds of entries: either single CPU numbers in
       any order, a range of CPUs (M-N) or a range with some stride
!      (M-N:S). CPU numbers are zero based.  For example,
!      'GOMP_CPU_AFFINITY="0 3 1-2 4-15:2"' will bind the initial thread
       to CPU 0, the second to CPU 3, the third to CPU 1, the fourth to
       CPU 2, the fifth to CPU 4, the sixth through tenth to CPUs 6, 8,
       10, 12, and 14 respectively and then start assigning back from the
!      beginning of the list.  'GOMP_CPU_AFFINITY=0' binds all threads to
       CPU 0.
  
       There is no libgomp library routine to determine whether a CPU
       affinity specification is in effect.  As a workaround,
!      language-specific library functions, e.g., 'getenv' in C or
!      'GET_ENVIRONMENT_VARIABLE' in Fortran, may be used to query the
!      setting of the 'GOMP_CPU_AFFINITY' environment variable.  A defined
!      CPU affinity on startup cannot be changed or disabled during the
!      runtime of the application.
  
!      If both 'GOMP_CPU_AFFINITY' and 'OMP_PROC_BIND' are set,
!      'OMP_PROC_BIND' has a higher precedence.  If neither has been set
!      and 'OMP_PROC_BIND' is unset, or when 'OMP_PROC_BIND' is set to
!      'FALSE', the host system will handle the assignment of threads to
       CPUs.
  
  _See also_:
*************** _See also_:
*** 1516,1527 ****
  
  File: libgomp.info,  Node: GOMP_DEBUG,  Next: GOMP_STACKSIZE,  Prev: GOMP_CPU_AFFINITY,  Up: Environment Variables
  
! 3.16 `GOMP_DEBUG' - Enable debugging output
  ===========================================
  
  _Description_:
!      Enable debugging output.  The variable should be set to `0'
!      (disabled, also the default if not set), or `1' (enabled).
  
       If enabled, some debugging output will be printed during execution.
       This is currently not specified in more detail, and subject to
--- 1512,1523 ----
  
  File: libgomp.info,  Node: GOMP_DEBUG,  Next: GOMP_STACKSIZE,  Prev: GOMP_CPU_AFFINITY,  Up: Environment Variables
  
! 3.16 'GOMP_DEBUG' - Enable debugging output
  ===========================================
  
  _Description_:
!      Enable debugging output.  The variable should be set to '0'
!      (disabled, also the default if not set), or '1' (enabled).
  
       If enabled, some debugging output will be printed during execution.
       This is currently not specified in more detail, and subject to
*************** _Description_:
*** 1530,1541 ****
  
  File: libgomp.info,  Node: GOMP_STACKSIZE,  Next: GOMP_SPINCOUNT,  Prev: GOMP_DEBUG,  Up: Environment Variables
  
! 3.17 `GOMP_STACKSIZE' - Set default thread stack size
  =====================================================
  
  _Description_:
       Set the default thread stack size in kilobytes.  This is different
!      from `pthread_attr_setstacksize' which gets the number of bytes as
       an argument.  If the stack size cannot be set due to system
       constraints, an error is reported and the initial stack size is
       left unchanged.  If undefined, the stack size is system dependent.
--- 1526,1537 ----
  
  File: libgomp.info,  Node: GOMP_STACKSIZE,  Next: GOMP_SPINCOUNT,  Prev: GOMP_DEBUG,  Up: Environment Variables
  
! 3.17 'GOMP_STACKSIZE' - Set default thread stack size
  =====================================================
  
  _Description_:
       Set the default thread stack size in kilobytes.  This is different
!      from 'pthread_attr_setstacksize' which gets the number of bytes as
       an argument.  If the stack size cannot be set due to system
       constraints, an error is reported and the initial stack size is
       left unchanged.  If undefined, the stack size is system dependent.
*************** _Reference_:
*** 1552,1575 ****
  
  File: libgomp.info,  Node: GOMP_SPINCOUNT,  Next: GOMP_RTEMS_THREAD_POOLS,  Prev: GOMP_STACKSIZE,  Up: Environment Variables
  
! 3.18 `GOMP_SPINCOUNT' - Set the busy-wait spin count
  ====================================================
  
  _Description_:
       Determines how long a threads waits actively with consuming CPU
       power before waiting passively without consuming CPU power.  The
!      value may be either `INFINITE', `INFINITY' to always wait actively
       or an integer which gives the number of spins of the busy-wait
       loop.  The integer may optionally be followed by the following
!      suffixes acting as multiplication factors: `k' (kilo, thousand),
!      `M' (mega, million), `G' (giga, billion), or `T' (tera, trillion).
!      If undefined, 0 is used when `OMP_WAIT_POLICY' is `PASSIVE',
!      300,000 is used when `OMP_WAIT_POLICY' is undefined and 30 billion
!      is used when `OMP_WAIT_POLICY' is `ACTIVE'.  If there are more
!      OpenMP threads than available CPUs, 1000 and 100 spins are used
!      for `OMP_WAIT_POLICY' being `ACTIVE' or undefined, respectively;
!      unless the `GOMP_SPINCOUNT' is lower or `OMP_WAIT_POLICY' is
!      `PASSIVE'.
  
  _See also_:
       *note OMP_WAIT_POLICY::
--- 1548,1570 ----
  
  File: libgomp.info,  Node: GOMP_SPINCOUNT,  Next: GOMP_RTEMS_THREAD_POOLS,  Prev: GOMP_STACKSIZE,  Up: Environment Variables
  
! 3.18 'GOMP_SPINCOUNT' - Set the busy-wait spin count
  ====================================================
  
  _Description_:
       Determines how long a threads waits actively with consuming CPU
       power before waiting passively without consuming CPU power.  The
!      value may be either 'INFINITE', 'INFINITY' to always wait actively
       or an integer which gives the number of spins of the busy-wait
       loop.  The integer may optionally be followed by the following
!      suffixes acting as multiplication factors: 'k' (kilo, thousand),
!      'M' (mega, million), 'G' (giga, billion), or 'T' (tera, trillion).
!      If undefined, 0 is used when 'OMP_WAIT_POLICY' is 'PASSIVE',
!      300,000 is used when 'OMP_WAIT_POLICY' is undefined and 30 billion
!      is used when 'OMP_WAIT_POLICY' is 'ACTIVE'.  If there are more
!      OpenMP threads than available CPUs, 1000 and 100 spins are used for
!      'OMP_WAIT_POLICY' being 'ACTIVE' or undefined, respectively; unless
!      the 'GOMP_SPINCOUNT' is lower or 'OMP_WAIT_POLICY' is 'PASSIVE'.
  
  _See also_:
       *note OMP_WAIT_POLICY::
*************** _See also_:
*** 1577,1620 ****
  
  File: libgomp.info,  Node: GOMP_RTEMS_THREAD_POOLS,  Prev: GOMP_SPINCOUNT,  Up: Environment Variables
  
! 3.19 `GOMP_RTEMS_THREAD_POOLS' - Set the RTEMS specific thread pools
  ====================================================================
  
  _Description_:
       This environment variable is only used on the RTEMS real-time
       operating system.  It determines the scheduler instance specific
!      thread pools.  The format for `GOMP_RTEMS_THREAD_POOLS' is a list
!      of optional `<thread-pool-count>[$<priority>]@<scheduler-name>'
!      configurations separated by `:' where:
!         * `<thread-pool-count>' is the thread pool count for this
            scheduler instance.
! 
!         * `$<priority>' is an optional priority for the worker threads
!           of a thread pool according to `pthread_setschedparam'.  In
            case a priority value is omitted, then a worker thread will
            inherit the priority of the OpenMP master thread that created
            it.  The priority of the worker thread is not changed after
            creation, even if a new OpenMP master thread using the worker
            has a different priority.
! 
!         * `@<scheduler-name>' is the scheduler instance name according
            to the RTEMS application configuration.
       In case no thread pool configuration is specified for a scheduler
!      instance, then each OpenMP master thread of this scheduler
!      instance will use its own dynamically allocated thread pool.  To
!      limit the worker thread count of the thread pools, each OpenMP
!      master thread must call `omp_set_num_threads'.
! 
  _Example_:
!      Lets suppose we have three scheduler instances `IO', `WRK0', and
!      `WRK1' with `GOMP_RTEMS_THREAD_POOLS' set to `"1@WRK0:3$4@WRK1"'.
       Then there are no thread pool restrictions for scheduler instance
!      `IO'.  In the scheduler instance `WRK0' there is one thread pool
       available.  Since no priority is specified for this scheduler
       instance, the worker thread inherits the priority of the OpenMP
!      master thread that created it.  In the scheduler instance `WRK1'
!      there are three thread pools available and their worker threads
!      run at priority four.
  
  
  File: libgomp.info,  Node: Enabling OpenACC,  Next: OpenACC Runtime Library Routines,  Prev: Environment Variables,  Up: Top
--- 1572,1612 ----
  
  File: libgomp.info,  Node: GOMP_RTEMS_THREAD_POOLS,  Prev: GOMP_SPINCOUNT,  Up: Environment Variables
  
! 3.19 'GOMP_RTEMS_THREAD_POOLS' - Set the RTEMS specific thread pools
  ====================================================================
  
  _Description_:
       This environment variable is only used on the RTEMS real-time
       operating system.  It determines the scheduler instance specific
!      thread pools.  The format for 'GOMP_RTEMS_THREAD_POOLS' is a list
!      of optional '<thread-pool-count>[$<priority>]@<scheduler-name>'
!      configurations separated by ':' where:
!         * '<thread-pool-count>' is the thread pool count for this
            scheduler instance.
!         * '$<priority>' is an optional priority for the worker threads
!           of a thread pool according to 'pthread_setschedparam'.  In
            case a priority value is omitted, then a worker thread will
            inherit the priority of the OpenMP master thread that created
            it.  The priority of the worker thread is not changed after
            creation, even if a new OpenMP master thread using the worker
            has a different priority.
!         * '@<scheduler-name>' is the scheduler instance name according
            to the RTEMS application configuration.
       In case no thread pool configuration is specified for a scheduler
!      instance, then each OpenMP master thread of this scheduler instance
!      will use its own dynamically allocated thread pool.  To limit the
!      worker thread count of the thread pools, each OpenMP master thread
!      must call 'omp_set_num_threads'.
  _Example_:
!      Lets suppose we have three scheduler instances 'IO', 'WRK0', and
!      'WRK1' with 'GOMP_RTEMS_THREAD_POOLS' set to '"1@WRK0:3$4@WRK1"'.
       Then there are no thread pool restrictions for scheduler instance
!      'IO'.  In the scheduler instance 'WRK0' there is one thread pool
       available.  Since no priority is specified for this scheduler
       instance, the worker thread inherits the priority of the OpenMP
!      master thread that created it.  In the scheduler instance 'WRK1'
!      there are three thread pools available and their worker threads run
!      at priority four.
  
  
  File: libgomp.info,  Node: Enabling OpenACC,  Next: OpenACC Runtime Library Routines,  Prev: Environment Variables,  Up: Top
*************** File: libgomp.info,  Node: Enabling Open
*** 1623,1632 ****
  ******************
  
  To activate the OpenACC extensions for C/C++ and Fortran, the
! compile-time flag `-fopenacc' must be specified.  This enables the
! OpenACC directive `#pragma acc' in C/C++ and `!$accp' directives in
! free form, `c$acc', `*$acc' and `!$acc' directives in fixed form, `!$'
! conditional compilation sentinels in free form and `c$', `*$' and `!$'
  sentinels in fixed form, for Fortran.  The flag also arranges for
  automatic linking of the OpenACC runtime library (*note OpenACC Runtime
  Library Routines::).
--- 1615,1624 ----
  ******************
  
  To activate the OpenACC extensions for C/C++ and Fortran, the
! compile-time flag '-fopenacc' must be specified.  This enables the
! OpenACC directive '#pragma acc' in C/C++ and '!$accp' directives in free
! form, 'c$acc', '*$acc' and '!$acc' directives in fixed form, '!$'
! conditional compilation sentinels in free form and 'c$', '*$' and '!$'
  sentinels in fixed form, for Fortran.  The flag also arranges for
  automatic linking of the OpenACC runtime library (*note OpenACC Runtime
  Library Routines::).
*************** found in the OpenACC (http://www.openacc
*** 1636,1643 ****
  Interface manual, version 2.0.
  
     Note that this is an experimental feature and subject to change in
! future versions of GCC.  See `https://gcc.gnu.org/wiki/OpenACC' for
! more information.
  
  
  File: libgomp.info,  Node: OpenACC Runtime Library Routines,  Next: OpenACC Environment Variables,  Prev: Enabling OpenACC,  Up: Top
--- 1628,1635 ----
  Interface manual, version 2.0.
  
     Note that this is an experimental feature and subject to change in
! future versions of GCC. See <https://gcc.gnu.org/wiki/OpenACC> for more
! information.
  
  
  File: libgomp.info,  Node: OpenACC Runtime Library Routines,  Next: OpenACC Environment Variables,  Prev: Enabling OpenACC,  Up: Top
*************** File: libgomp.info,  Node: OpenACC Runti
*** 1647,1655 ****
  
  The runtime routines described here are defined by section 3 of the
  OpenACC specifications in version 2.0.  They have C linkage, and do not
! throw exceptions.  Generally, they are available only for the host,
! with the exception of `acc_on_device', which is available for both the
! host and the acceleration device.
  
  * Menu:
  
--- 1639,1647 ----
  
  The runtime routines described here are defined by section 3 of the
  OpenACC specifications in version 2.0.  They have C linkage, and do not
! throw exceptions.  Generally, they are available only for the host, with
! the exception of 'acc_on_device', which is available for both the host
! and the acceleration device.
  
  * Menu:
  
*************** API routines for target platforms.
*** 1712,1718 ****
  
  File: libgomp.info,  Node: acc_get_num_devices,  Next: acc_set_device_type,  Up: OpenACC Runtime Library Routines
  
! 5.1 `acc_get_num_devices' - Get number of devices for given device type
  =======================================================================
  
  _Description_
--- 1704,1710 ----
  
  File: libgomp.info,  Node: acc_get_num_devices,  Next: acc_set_device_type,  Up: OpenACC Runtime Library Routines
  
! 5.1 'acc_get_num_devices' - Get number of devices for given device type
  =======================================================================
  
  _Description_
*************** _Description_
*** 1720,1730 ****
       available for the device type specified in DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:  `int acc_get_num_devices(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:  `integer function acc_get_num_devices(devicetype)'
!                    `integer(kind=acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1712,1722 ----
       available for the device type specified in DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:   'int acc_get_num_devices(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'integer function acc_get_num_devices(devicetype)'
!                     'integer(kind=acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1733,1739 ****
  
  File: libgomp.info,  Node: acc_set_device_type,  Next: acc_get_device_type,  Prev: acc_get_num_devices,  Up: OpenACC Runtime Library Routines
  
! 5.2 `acc_set_device_type' - Set type of device accelerator to use.
  ==================================================================
  
  _Description_
--- 1725,1731 ----
  
  File: libgomp.info,  Node: acc_set_device_type,  Next: acc_get_device_type,  Prev: acc_get_num_devices,  Up: OpenACC Runtime Library Routines
  
! 5.2 'acc_set_device_type' - Set type of device accelerator to use.
  ==================================================================
  
  _Description_
*************** _Description_
*** 1742,1752 ****
       kernels region.
  
  _C/C++_:
!      _Prototype_:  `acc_set_device_type(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_set_device_type(devicetype)'
!                    `integer(kind=acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1734,1744 ----
       kernels region.
  
  _C/C++_:
!      _Prototype_:   'acc_set_device_type(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_set_device_type(devicetype)'
!                     'integer(kind=acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1755,1761 ****
  
  File: libgomp.info,  Node: acc_get_device_type,  Next: acc_set_device_num,  Prev: acc_set_device_type,  Up: OpenACC Runtime Library Routines
  
! 5.3 `acc_get_device_type' - Get type of device accelerator to be used.
  ======================================================================
  
  _Description_
--- 1747,1753 ----
  
  File: libgomp.info,  Node: acc_get_device_type,  Next: acc_set_device_num,  Prev: acc_set_device_type,  Up: OpenACC Runtime Library Routines
  
! 5.3 'acc_get_device_type' - Get type of device accelerator to be used.
  ======================================================================
  
  _Description_
*************** _Description_
*** 1763,1773 ****
       a parallel or kernels region.
  
  _C/C++_:
!      _Prototype_:  `acc_device_t acc_get_device_type(void);'
  
  _Fortran_:
!      _Interface_:  `function acc_get_device_type(void)'
!                    `integer(kind=acc_device_kind) acc_get_device_type'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1755,1765 ----
       a parallel or kernels region.
  
  _C/C++_:
!      _Prototype_:   'acc_device_t acc_get_device_type(void);'
  
  _Fortran_:
!      _Interface_:   'function acc_get_device_type(void)'
!                     'integer(kind=acc_device_kind) acc_get_device_type'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1776,1782 ****
  
  File: libgomp.info,  Node: acc_set_device_num,  Next: acc_get_device_num,  Prev: acc_get_device_type,  Up: OpenACC Runtime Library Routines
  
! 5.4 `acc_set_device_num' - Set device number to use.
  ====================================================
  
  _Description_
--- 1768,1774 ----
  
  File: libgomp.info,  Node: acc_set_device_num,  Next: acc_get_device_num,  Prev: acc_get_device_type,  Up: OpenACC Runtime Library Routines
  
! 5.4 'acc_set_device_num' - Set device number to use.
  ====================================================
  
  _Description_
*************** _Description_
*** 1785,1797 ****
       DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:  `acc_set_device_num(int num, acc_device_t
!                    devicetype);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_set_device_num(devicenum, devicetype)'
!                    `integer devicenum'
!                    `integer(kind=acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1777,1788 ----
       DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:   'acc_set_device_num(int num, acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_set_device_num(devicenum, devicetype)'
!                     'integer devicenum'
!                     'integer(kind=acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1800,1806 ****
  
  File: libgomp.info,  Node: acc_get_device_num,  Next: acc_async_test,  Prev: acc_set_device_num,  Up: OpenACC Runtime Library Routines
  
! 5.5 `acc_get_device_num' - Get device number to be used.
  ========================================================
  
  _Description_
--- 1791,1797 ----
  
  File: libgomp.info,  Node: acc_get_device_num,  Next: acc_async_test,  Prev: acc_set_device_num,  Up: OpenACC Runtime Library Routines
  
! 5.5 'acc_get_device_num' - Get device number to be used.
  ========================================================
  
  _Description_
*************** _Description_
*** 1809,1820 ****
       parallel or kernels region.
  
  _C/C++_:
!      _Prototype_:  `int acc_get_device_num(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:  `function acc_get_device_num(devicetype)'
!                    `integer(kind=acc_device_kind) devicetype'
!                    `integer acc_get_device_num'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1800,1811 ----
       parallel or kernels region.
  
  _C/C++_:
!      _Prototype_:   'int acc_get_device_num(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'function acc_get_device_num(devicetype)'
!                     'integer(kind=acc_device_kind) devicetype'
!                     'integer acc_get_device_num'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1823,1845 ****
  
  File: libgomp.info,  Node: acc_async_test,  Next: acc_async_test_all,  Prev: acc_get_device_num,  Up: OpenACC Runtime Library Routines
  
! 5.6 `acc_async_test' - Test for completion of a specific asynchronous operation.
  ================================================================================
  
  _Description_
       This function tests for completion of the asynchrounous operation
!      specified in ARG. In C/C++, a non-zero value will be returned to
!      indicate the specified asynchronous operation has completed. While
!      Fortran will return a `true'. If the asynchrounous operation has
!      not completed, C/C++ returns a zero and Fortran returns a `false'.
  
  _C/C++_:
!      _Prototype_:  `int acc_async_test(int arg);'
  
  _Fortran_:
!      _Interface_:  `function acc_async_test(arg)'
!                    `integer(kind=acc_handle_kind) arg'
!                    `logical acc_async_test'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1814,1836 ----
  
  File: libgomp.info,  Node: acc_async_test,  Next: acc_async_test_all,  Prev: acc_get_device_num,  Up: OpenACC Runtime Library Routines
  
! 5.6 'acc_async_test' - Test for completion of a specific asynchronous operation.
  ================================================================================
  
  _Description_
       This function tests for completion of the asynchrounous operation
!      specified in ARG.  In C/C++, a non-zero value will be returned to
!      indicate the specified asynchronous operation has completed.  While
!      Fortran will return a 'true'.  If the asynchrounous operation has
!      not completed, C/C++ returns a zero and Fortran returns a 'false'.
  
  _C/C++_:
!      _Prototype_:   'int acc_async_test(int arg);'
  
  _Fortran_:
!      _Interface_:   'function acc_async_test(arg)'
!                     'integer(kind=acc_handle_kind) arg'
!                     'logical acc_async_test'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1848,1869 ****
  
  File: libgomp.info,  Node: acc_async_test_all,  Next: acc_wait,  Prev: acc_async_test,  Up: OpenACC Runtime Library Routines
  
! 5.7 `acc_async_test_all' - Tests for completion of all asynchronous operations.
  ===============================================================================
  
  _Description_
       This function tests for completion of all asynchrounous operations.
       In C/C++, a non-zero value will be returned to indicate all
!      asynchronous operations have completed. While Fortran will return
!      a `true'. If any asynchronous operation has not completed, C/C++
!      returns a zero and Fortran returns a `false'.
  
  _C/C++_:
!      _Prototype_:  `int acc_async_test_all(void);'
  
  _Fortran_:
!      _Interface_:  `function acc_async_test()'
!                    `logical acc_get_device_num'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1839,1860 ----
  
  File: libgomp.info,  Node: acc_async_test_all,  Next: acc_wait,  Prev: acc_async_test,  Up: OpenACC Runtime Library Routines
  
! 5.7 'acc_async_test_all' - Tests for completion of all asynchronous operations.
  ===============================================================================
  
  _Description_
       This function tests for completion of all asynchrounous operations.
       In C/C++, a non-zero value will be returned to indicate all
!      asynchronous operations have completed.  While Fortran will return
!      a 'true'.  If any asynchronous operation has not completed, C/C++
!      returns a zero and Fortran returns a 'false'.
  
  _C/C++_:
!      _Prototype_:   'int acc_async_test_all(void);'
  
  _Fortran_:
!      _Interface_:   'function acc_async_test()'
!                     'logical acc_get_device_num'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1872,1878 ****
  
  File: libgomp.info,  Node: acc_wait,  Next: acc_wait_all,  Prev: acc_async_test_all,  Up: OpenACC Runtime Library Routines
  
! 5.8 `acc_wait' - Wait for completion of a specific asynchronous operation.
  ==========================================================================
  
  _Description_
--- 1863,1869 ----
  
  File: libgomp.info,  Node: acc_wait,  Next: acc_wait_all,  Prev: acc_async_test_all,  Up: OpenACC Runtime Library Routines
  
! 5.8 'acc_wait' - Wait for completion of a specific asynchronous operation.
  ==========================================================================
  
  _Description_
*************** _Description_
*** 1880,1890 ****
       specified in ARG.
  
  _C/C++_:
!      _Prototype_:  `acc_wait(arg);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_wait(arg)'
!                    `integer(acc_handle_kind) arg'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1871,1881 ----
       specified in ARG.
  
  _C/C++_:
!      _Prototype_:   'acc_wait(arg);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_wait(arg)'
!                     'integer(acc_handle_kind) arg'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1893,1899 ****
  
  File: libgomp.info,  Node: acc_wait_all,  Next: acc_wait_all_async,  Prev: acc_wait,  Up: OpenACC Runtime Library Routines
  
! 5.9 `acc_wait_all' - Waits for completion of all asynchronous operations.
  =========================================================================
  
  _Description_
--- 1884,1890 ----
  
  File: libgomp.info,  Node: acc_wait_all,  Next: acc_wait_all_async,  Prev: acc_wait,  Up: OpenACC Runtime Library Routines
  
! 5.9 'acc_wait_all' - Waits for completion of all asynchronous operations.
  =========================================================================
  
  _Description_
*************** _Description_
*** 1901,1910 ****
       operations.
  
  _C/C++_:
!      _Prototype_:  `acc_wait_all(void);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_wait_async()'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1892,1901 ----
       operations.
  
  _C/C++_:
!      _Prototype_:   'acc_wait_all(void);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_wait_async()'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1913,1919 ****
  
  File: libgomp.info,  Node: acc_wait_all_async,  Next: acc_wait_async,  Prev: acc_wait_all,  Up: OpenACC Runtime Library Routines
  
! 5.10 `acc_wait_all_async' - Wait for completion of all asynchronous operations.
  ===============================================================================
  
  _Description_
--- 1904,1910 ----
  
  File: libgomp.info,  Node: acc_wait_all_async,  Next: acc_wait_async,  Prev: acc_wait_all,  Up: OpenACC Runtime Library Routines
  
! 5.10 'acc_wait_all_async' - Wait for completion of all asynchronous operations.
  ===============================================================================
  
  _Description_
*************** _Description_
*** 1922,1932 ****
       on any queue.
  
  _C/C++_:
!      _Prototype_:  `acc_wait_all_async(int async);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_wait_all_async(async)'
!                    `integer(acc_handle_kind) async'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1913,1923 ----
       on any queue.
  
  _C/C++_:
!      _Prototype_:   'acc_wait_all_async(int async);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_wait_all_async(async)'
!                     'integer(acc_handle_kind) async'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1935,1941 ****
  
  File: libgomp.info,  Node: acc_wait_async,  Next: acc_init,  Prev: acc_wait_all_async,  Up: OpenACC Runtime Library Routines
  
! 5.11 `acc_wait_async' - Wait for completion of asynchronous operations.
  =======================================================================
  
  _Description_
--- 1926,1932 ----
  
  File: libgomp.info,  Node: acc_wait_async,  Next: acc_init,  Prev: acc_wait_all_async,  Up: OpenACC Runtime Library Routines
  
! 5.11 'acc_wait_async' - Wait for completion of asynchronous operations.
  =======================================================================
  
  _Description_
*************** _Description_
*** 1943,1953 ****
       all asynchronous operations enqueued on queue ARG.
  
  _C/C++_:
!      _Prototype_:  `acc_wait_async(int arg, int async);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_wait_async(arg, async)'
!                    `integer(acc_handle_kind) arg, async'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1934,1944 ----
       all asynchronous operations enqueued on queue ARG.
  
  _C/C++_:
!      _Prototype_:   'acc_wait_async(int arg, int async);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_wait_async(arg, async)'
!                     'integer(acc_handle_kind) arg, async'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1956,1974 ****
  
  File: libgomp.info,  Node: acc_init,  Next: acc_shutdown,  Prev: acc_wait_async,  Up: OpenACC Runtime Library Routines
  
! 5.12 `acc_init' - Initialize runtime for a specific device type.
  ================================================================
  
  _Description_
!      This function initializes the runtime for the device type
!      specified in DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:  `acc_init(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_init(devicetype)'
!                    `integer(acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1947,1965 ----
  
  File: libgomp.info,  Node: acc_init,  Next: acc_shutdown,  Prev: acc_wait_async,  Up: OpenACC Runtime Library Routines
  
! 5.12 'acc_init' - Initialize runtime for a specific device type.
  ================================================================
  
  _Description_
!      This function initializes the runtime for the device type specified
!      in DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:   'acc_init(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_init(devicetype)'
!                     'integer(acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1977,1983 ****
  
  File: libgomp.info,  Node: acc_shutdown,  Next: acc_on_device,  Prev: acc_init,  Up: OpenACC Runtime Library Routines
  
! 5.13 `acc_shutdown' - Shuts down the runtime for a specific device type.
  ========================================================================
  
  _Description_
--- 1968,1974 ----
  
  File: libgomp.info,  Node: acc_shutdown,  Next: acc_on_device,  Prev: acc_init,  Up: OpenACC Runtime Library Routines
  
! 5.13 'acc_shutdown' - Shuts down the runtime for a specific device type.
  ========================================================================
  
  _Description_
*************** _Description_
*** 1985,1995 ****
       in DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:  `acc_shutdown(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_shutdown(devicetype)'
!                    `integer(acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1976,1986 ----
       in DEVICETYPE.
  
  _C/C++_:
!      _Prototype_:   'acc_shutdown(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_shutdown(devicetype)'
!                     'integer(acc_device_kind) devicetype'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 1998,2021 ****
  
  File: libgomp.info,  Node: acc_on_device,  Next: acc_malloc,  Prev: acc_shutdown,  Up: OpenACC Runtime Library Routines
  
! 5.14 `acc_on_device' - Whether executing on a particular device
  ===============================================================
  
  _Description_:
       This function returns whether the program is executing on a
!      particular device specified in DEVICETYPE. In C/C++ a non-zero
       value is returned to indicate the device is execiting on the
!      specified device type.  In Fortran, `true' will be returned. If
       the program is not executing on the specified device type C/C++
!      will return a zero, while Fortran will return `false'.
  
  _C/C++_:
!      _Prototype_:  `acc_on_device(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:  `function acc_on_device(devicetype)'
!                    `integer(acc_device_kind) devicetype'
!                    `logical acc_on_device'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 1989,2012 ----
  
  File: libgomp.info,  Node: acc_on_device,  Next: acc_malloc,  Prev: acc_shutdown,  Up: OpenACC Runtime Library Routines
  
! 5.14 'acc_on_device' - Whether executing on a particular device
  ===============================================================
  
  _Description_:
       This function returns whether the program is executing on a
!      particular device specified in DEVICETYPE.  In C/C++ a non-zero
       value is returned to indicate the device is execiting on the
!      specified device type.  In Fortran, 'true' will be returned.  If
       the program is not executing on the specified device type C/C++
!      will return a zero, while Fortran will return 'false'.
  
  _C/C++_:
!      _Prototype_:   'acc_on_device(acc_device_t devicetype);'
  
  _Fortran_:
!      _Interface_:   'function acc_on_device(devicetype)'
!                     'integer(acc_device_kind) devicetype'
!                     'logical acc_on_device'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2024,2038 ****
  
  File: libgomp.info,  Node: acc_malloc,  Next: acc_free,  Prev: acc_on_device,  Up: OpenACC Runtime Library Routines
  
! 5.15 `acc_malloc' - Allocate device memory.
  ===========================================
  
  _Description_
!      This function allocates LEN bytes of device memory. It returns the
       device address of the allocated memory.
  
  _C/C++_:
!      _Prototype_:  `d_void* acc_malloc(size_t len);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2015,2029 ----
  
  File: libgomp.info,  Node: acc_malloc,  Next: acc_free,  Prev: acc_on_device,  Up: OpenACC Runtime Library Routines
  
! 5.15 'acc_malloc' - Allocate device memory.
  ===========================================
  
  _Description_
!      This function allocates LEN bytes of device memory.  It returns the
       device address of the allocated memory.
  
  _C/C++_:
!      _Prototype_:   'd_void* acc_malloc(size_t len);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2041,2054 ****
  
  File: libgomp.info,  Node: acc_free,  Next: acc_copyin,  Prev: acc_malloc,  Up: OpenACC Runtime Library Routines
  
! 5.16 `acc_free' - Free device memory.
  =====================================
  
  _Description_
!      Free previously allocated device memory at the device address `a'.
  
  _C/C++_:
!      _Prototype_:  `acc_free(d_void *a);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2032,2045 ----
  
  File: libgomp.info,  Node: acc_free,  Next: acc_copyin,  Prev: acc_malloc,  Up: OpenACC Runtime Library Routines
  
! 5.16 'acc_free' - Free device memory.
  =====================================
  
  _Description_
!      Free previously allocated device memory at the device address 'a'.
  
  _C/C++_:
!      _Prototype_:   'acc_free(d_void *a);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2057,2083 ****
  
  File: libgomp.info,  Node: acc_copyin,  Next: acc_present_or_copyin,  Prev: acc_free,  Up: OpenACC Runtime Library Routines
  
! 5.17 `acc_copyin' - Allocate device memory and copy host memory to it.
  ======================================================================
  
  _Description_
       In C/C++, this function allocates LEN bytes of device memory and
!      maps it to the specified host address in A. The device address of
       the newly allocated device memory is returned.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies a
!      variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `void *acc_copyin(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_copyin(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_copyin(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2048,2074 ----
  
  File: libgomp.info,  Node: acc_copyin,  Next: acc_present_or_copyin,  Prev: acc_free,  Up: OpenACC Runtime Library Routines
  
! 5.17 'acc_copyin' - Allocate device memory and copy host memory to it.
  ======================================================================
  
  _Description_
       In C/C++, this function allocates LEN bytes of device memory and
!      maps it to the specified host address in A.  The device address of
       the newly allocated device memory is returned.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
!      a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'void *acc_copyin(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_copyin(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_copyin(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2086,2119 ****
  
  File: libgomp.info,  Node: acc_present_or_copyin,  Next: acc_create,  Prev: acc_copyin,  Up: OpenACC Runtime Library Routines
  
! 5.18 `acc_present_or_copyin' - If the data is not present on the device, allocate device memory and copy from host memory.
  ==========================================================================================================================
  
  _Description_
       This function tests if the host data specifed by A and of length
!      LEN is present or not. If it is not present, then device memory
!      will be allocated and the host memory copied. The device address of
!      the newly allocated device memory is returned.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `void *acc_present_or_copyin(h_void *a, size_t len);'
!      _Prototype_:  `void *acc_pcopyin(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_present_or_copyin(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_present_or_copyin(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
!      _Interface_:  `subroutine acc_pcopyin(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_pcopyin(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2077,2110 ----
  
  File: libgomp.info,  Node: acc_present_or_copyin,  Next: acc_create,  Prev: acc_copyin,  Up: OpenACC Runtime Library Routines
  
! 5.18 'acc_present_or_copyin' - If the data is not present on the device, allocate device memory and copy from host memory.
  ==========================================================================================================================
  
  _Description_
       This function tests if the host data specifed by A and of length
!      LEN is present or not.  If it is not present, then device memory
!      will be allocated and the host memory copied.  The device address
!      of the newly allocated device memory is returned.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'void *acc_present_or_copyin(h_void *a, size_t len);'
!      _Prototype_:   'void *acc_pcopyin(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_present_or_copyin(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_present_or_copyin(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
!      _Interface_:   'subroutine acc_pcopyin(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_pcopyin(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2122,2149 ****
  
  File: libgomp.info,  Node: acc_create,  Next: acc_present_or_create,  Prev: acc_present_or_copyin,  Up: OpenACC Runtime Library Routines
  
! 5.19 `acc_create' - Allocate device memory and map it to host memory.
  =====================================================================
  
  _Description_
       This function allocates device memory and maps it to host memory
!      specified by the host address A with a length of LEN bytes. In
       C/C++, the function returns the device address of the allocated
       device memory.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `void *acc_create(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_create(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_create(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2113,2140 ----
  
  File: libgomp.info,  Node: acc_create,  Next: acc_present_or_create,  Prev: acc_present_or_copyin,  Up: OpenACC Runtime Library Routines
  
! 5.19 'acc_create' - Allocate device memory and map it to host memory.
  =====================================================================
  
  _Description_
       This function allocates device memory and maps it to host memory
!      specified by the host address A with a length of LEN bytes.  In
       C/C++, the function returns the device address of the allocated
       device memory.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'void *acc_create(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_create(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_create(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2152,2185 ****
  
  File: libgomp.info,  Node: acc_present_or_create,  Next: acc_copyout,  Prev: acc_create,  Up: OpenACC Runtime Library Routines
  
! 5.20 `acc_present_or_create' - If the data is not present on the device, allocate device memory and map it to host memory.
  ==========================================================================================================================
  
  _Description_
       This function tests if the host data specifed by A and of length
!      LEN is present or not. If it is not present, then device memory
!      will be allocated and mapped to host memory. In C/C++, the device
       address of the newly allocated device memory is returned.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `void *acc_present_or_create(h_void *a, size_t len)'
!      _Prototype_:  `void *acc_pcreate(h_void *a, size_t len)'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_present_or_create(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_present_or_create(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
!      _Interface_:  `subroutine acc_pcreate(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_pcreate(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2143,2176 ----
  
  File: libgomp.info,  Node: acc_present_or_create,  Next: acc_copyout,  Prev: acc_create,  Up: OpenACC Runtime Library Routines
  
! 5.20 'acc_present_or_create' - If the data is not present on the device, allocate device memory and map it to host memory.
  ==========================================================================================================================
  
  _Description_
       This function tests if the host data specifed by A and of length
!      LEN is present or not.  If it is not present, then device memory
!      will be allocated and mapped to host memory.  In C/C++, the device
       address of the newly allocated device memory is returned.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'void *acc_present_or_create(h_void *a, size_t len)'
!      _Prototype_:   'void *acc_pcreate(h_void *a, size_t len)'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_present_or_create(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_present_or_create(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
!      _Interface_:   'subroutine acc_pcreate(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_pcreate(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2188,2213 ****
  
  File: libgomp.info,  Node: acc_copyout,  Next: acc_delete,  Prev: acc_present_or_create,  Up: OpenACC Runtime Library Routines
  
! 5.21 `acc_copyout' - Copy device memory to host memory.
  =======================================================
  
  _Description_
       This function copies mapped device memory to host memory which is
       specified by host address A for a length LEN bytes in C/C++.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `acc_copyout(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_copyout(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_copyout(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2179,2204 ----
  
  File: libgomp.info,  Node: acc_copyout,  Next: acc_delete,  Prev: acc_present_or_create,  Up: OpenACC Runtime Library Routines
  
! 5.21 'acc_copyout' - Copy device memory to host memory.
  =======================================================
  
  _Description_
       This function copies mapped device memory to host memory which is
       specified by host address A for a length LEN bytes in C/C++.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'acc_copyout(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_copyout(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_copyout(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2216,2241 ****
  
  File: libgomp.info,  Node: acc_delete,  Next: acc_update_device,  Prev: acc_copyout,  Up: OpenACC Runtime Library Routines
  
! 5.22 `acc_delete' - Free device memory.
  =======================================
  
  _Description_
       This function frees previously allocated device memory specified by
       the device address A and the length of LEN bytes.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `acc_delete(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_delete(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_delete(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2207,2232 ----
  
  File: libgomp.info,  Node: acc_delete,  Next: acc_update_device,  Prev: acc_copyout,  Up: OpenACC Runtime Library Routines
  
! 5.22 'acc_delete' - Free device memory.
  =======================================
  
  _Description_
       This function frees previously allocated device memory specified by
       the device address A and the length of LEN bytes.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'acc_delete(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_delete(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_delete(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2244,2250 ****
  
  File: libgomp.info,  Node: acc_update_device,  Next: acc_update_self,  Prev: acc_delete,  Up: OpenACC Runtime Library Routines
  
! 5.23 `acc_update_device' - Update device memory from mapped host memory.
  ========================================================================
  
  _Description_
--- 2235,2241 ----
  
  File: libgomp.info,  Node: acc_update_device,  Next: acc_update_self,  Prev: acc_delete,  Up: OpenACC Runtime Library Routines
  
! 5.23 'acc_update_device' - Update device memory from mapped host memory.
  ========================================================================
  
  _Description_
*************** _Description_
*** 2252,2270 ****
       host memory.  The host memory is specified with the host address A
       and a length of LEN bytes.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `acc_update_device(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_update_device(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_update_device(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2243,2261 ----
       host memory.  The host memory is specified with the host address A
       and a length of LEN bytes.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'acc_update_device(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_update_device(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_update_device(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2273,2279 ****
  
  File: libgomp.info,  Node: acc_update_self,  Next: acc_map_data,  Prev: acc_update_device,  Up: OpenACC Runtime Library Routines
  
! 5.24 `acc_update_self' - Update host memory from mapped device memory.
  ======================================================================
  
  _Description_
--- 2264,2270 ----
  
  File: libgomp.info,  Node: acc_update_self,  Next: acc_map_data,  Prev: acc_update_device,  Up: OpenACC Runtime Library Routines
  
! 5.24 'acc_update_self' - Update host memory from mapped device memory.
  ======================================================================
  
  _Description_
*************** _Description_
*** 2281,2299 ****
       device memory.  The host memory is specified with the host address
       A and a length of LEN bytes.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:  `acc_update_self(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `subroutine acc_update_self(a)'
!                    `type, dimension(:[,:]...) :: a'
!      _Interface_:  `subroutine acc_update_self(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2272,2290 ----
       device memory.  The host memory is specified with the host address
       A and a length of LEN bytes.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
  
  _C/C++_:
!      _Prototype_:   'acc_update_self(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'subroutine acc_update_self(a)'
!                     'type, dimension(:[,:]...) :: a'
!      _Interface_:   'subroutine acc_update_self(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2302,2317 ****
  
  File: libgomp.info,  Node: acc_map_data,  Next: acc_unmap_data,  Prev: acc_update_self,  Up: OpenACC Runtime Library Routines
  
! 5.25 `acc_map_data' - Map previously allocated device memory to host memory.
  ============================================================================
  
  _Description_
       This function maps previously allocated device and host memory.
!      The device memory is specified with the device address D. The host
       memory is specified with the host address H and a length of LEN.
  
  _C/C++_:
!      _Prototype_:  `acc_map_data(h_void *h, d_void *d, size_t len);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2293,2308 ----
  
  File: libgomp.info,  Node: acc_map_data,  Next: acc_unmap_data,  Prev: acc_update_self,  Up: OpenACC Runtime Library Routines
  
! 5.25 'acc_map_data' - Map previously allocated device memory to host memory.
  ============================================================================
  
  _Description_
       This function maps previously allocated device and host memory.
!      The device memory is specified with the device address D.  The host
       memory is specified with the host address H and a length of LEN.
  
  _C/C++_:
!      _Prototype_:   'acc_map_data(h_void *h, d_void *d, size_t len);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2320,2334 ****
  
  File: libgomp.info,  Node: acc_unmap_data,  Next: acc_deviceptr,  Prev: acc_map_data,  Up: OpenACC Runtime Library Routines
  
! 5.26 `acc_unmap_data' - Unmap device memory from host memory.
  =============================================================
  
  _Description_
!      This function unmaps previously mapped device and host memory. The
       latter specified by H.
  
  _C/C++_:
!      _Prototype_:  `acc_unmap_data(h_void *h);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2311,2325 ----
  
  File: libgomp.info,  Node: acc_unmap_data,  Next: acc_deviceptr,  Prev: acc_map_data,  Up: OpenACC Runtime Library Routines
  
! 5.26 'acc_unmap_data' - Unmap device memory from host memory.
  =============================================================
  
  _Description_
!      This function unmaps previously mapped device and host memory.  The
       latter specified by H.
  
  _C/C++_:
!      _Prototype_:   'acc_unmap_data(h_void *h);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2337,2343 ****
  
  File: libgomp.info,  Node: acc_deviceptr,  Next: acc_hostptr,  Prev: acc_unmap_data,  Up: OpenACC Runtime Library Routines
  
! 5.27 `acc_deviceptr' - Get device pointer associated with specific host address.
  ================================================================================
  
  _Description_
--- 2328,2334 ----
  
  File: libgomp.info,  Node: acc_deviceptr,  Next: acc_hostptr,  Prev: acc_unmap_data,  Up: OpenACC Runtime Library Routines
  
! 5.27 'acc_deviceptr' - Get device pointer associated with specific host address.
  ================================================================================
  
  _Description_
*************** _Description_
*** 2345,2351 ****
       the host address specified by H.
  
  _C/C++_:
!      _Prototype_:  `void *acc_deviceptr(h_void *h);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2336,2342 ----
       the host address specified by H.
  
  _C/C++_:
!      _Prototype_:   'void *acc_deviceptr(h_void *h);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2354,2360 ****
  
  File: libgomp.info,  Node: acc_hostptr,  Next: acc_is_present,  Prev: acc_deviceptr,  Up: OpenACC Runtime Library Routines
  
! 5.28 `acc_hostptr' - Get host pointer associated with specific device address.
  ==============================================================================
  
  _Description_
--- 2345,2351 ----
  
  File: libgomp.info,  Node: acc_hostptr,  Next: acc_is_present,  Prev: acc_deviceptr,  Up: OpenACC Runtime Library Routines
  
! 5.28 'acc_hostptr' - Get host pointer associated with specific device address.
  ==============================================================================
  
  _Description_
*************** _Description_
*** 2362,2368 ****
       device address specified by D.
  
  _C/C++_:
!      _Prototype_:  `void *acc_hostptr(d_void *d);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2353,2359 ----
       device address specified by D.
  
  _C/C++_:
!      _Prototype_:   'void *acc_hostptr(d_void *d);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2371,2404 ****
  
  File: libgomp.info,  Node: acc_is_present,  Next: acc_memcpy_to_device,  Prev: acc_hostptr,  Up: OpenACC Runtime Library Routines
  
! 5.29 `acc_is_present' - Indicate whether host variable / array is present on device.
  ====================================================================================
  
  _Description_
!      This function indicates whether the specified host address in A
!      and a length of LEN bytes is present on the device. In C/C++, a
       non-zero value is returned to indicate the presence of the mapped
!      memory on the device. A zero is returned to indicate the memory is
       not mapped on the device.
  
!      In Fortran, two (2) forms are supported. In the first form, A
!      specifies a contiguous array section. The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
!      If the host memory is mapped to device memory, then a `true' is
!      returned. Otherwise, a `false' is return to indicate the mapped
       memory is not present.
  
  _C/C++_:
!      _Prototype_:  `int acc_is_present(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:  `function acc_is_present(a)'
!                    `type, dimension(:[,:]...) :: a'
!                    `logical acc_is_present'
!      _Interface_:  `function acc_is_present(a, len)'
!                    `type, dimension(:[,:]...) :: a'
!                    `integer len'
!                    `logical acc_is_present'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2362,2395 ----
  
  File: libgomp.info,  Node: acc_is_present,  Next: acc_memcpy_to_device,  Prev: acc_hostptr,  Up: OpenACC Runtime Library Routines
  
! 5.29 'acc_is_present' - Indicate whether host variable / array is present on device.
  ====================================================================================
  
  _Description_
!      This function indicates whether the specified host address in A and
!      a length of LEN bytes is present on the device.  In C/C++, a
       non-zero value is returned to indicate the presence of the mapped
!      memory on the device.  A zero is returned to indicate the memory is
       not mapped on the device.
  
!      In Fortran, two (2) forms are supported.  In the first form, A
!      specifies a contiguous array section.  The second form A specifies
       a variable or array element and LEN specifies the length in bytes.
!      If the host memory is mapped to device memory, then a 'true' is
!      returned.  Otherwise, a 'false' is return to indicate the mapped
       memory is not present.
  
  _C/C++_:
!      _Prototype_:   'int acc_is_present(h_void *a, size_t len);'
  
  _Fortran_:
!      _Interface_:   'function acc_is_present(a)'
!                     'type, dimension(:[,:]...) :: a'
!                     'logical acc_is_present'
!      _Interface_:   'function acc_is_present(a, len)'
!                     'type, dimension(:[,:]...) :: a'
!                     'integer len'
!                     'logical acc_is_present'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2407,2413 ****
  
  File: libgomp.info,  Node: acc_memcpy_to_device,  Next: acc_memcpy_from_device,  Prev: acc_is_present,  Up: OpenACC Runtime Library Routines
  
! 5.30 `acc_memcpy_to_device' - Copy host memory to device memory.
  ================================================================
  
  _Description_
--- 2398,2404 ----
  
  File: libgomp.info,  Node: acc_memcpy_to_device,  Next: acc_memcpy_from_device,  Prev: acc_is_present,  Up: OpenACC Runtime Library Routines
  
! 5.30 'acc_memcpy_to_device' - Copy host memory to device memory.
  ================================================================
  
  _Description_
*************** _Description_
*** 2416,2423 ****
       of BYTES bytes.
  
  _C/C++_:
!      _Prototype_:  `acc_memcpy_to_device(d_void *dest, h_void *src,
!                    size_t bytes);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2407,2414 ----
       of BYTES bytes.
  
  _C/C++_:
!      _Prototype_:   'acc_memcpy_to_device(d_void *dest, h_void *src, size_t
!                     bytes);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2426,2432 ****
  
  File: libgomp.info,  Node: acc_memcpy_from_device,  Next: acc_get_current_cuda_device,  Prev: acc_memcpy_to_device,  Up: OpenACC Runtime Library Routines
  
! 5.31 `acc_memcpy_from_device' - Copy device memory to host memory.
  ==================================================================
  
  _Description_
--- 2417,2423 ----
  
  File: libgomp.info,  Node: acc_memcpy_from_device,  Next: acc_get_current_cuda_device,  Prev: acc_memcpy_to_device,  Up: OpenACC Runtime Library Routines
  
! 5.31 'acc_memcpy_from_device' - Copy device memory to host memory.
  ==================================================================
  
  _Description_
*************** _Description_
*** 2435,2442 ****
       length of BYTES bytes.
  
  _C/C++_:
!      _Prototype_:  `acc_memcpy_from_device(d_void *dest, h_void *src,
!                    size_t bytes);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2426,2433 ----
       length of BYTES bytes.
  
  _C/C++_:
!      _Prototype_:   'acc_memcpy_from_device(d_void *dest, h_void *src,
!                     size_t bytes);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2445,2459 ****
  
  File: libgomp.info,  Node: acc_get_current_cuda_device,  Next: acc_get_current_cuda_context,  Prev: acc_memcpy_from_device,  Up: OpenACC Runtime Library Routines
  
! 5.32 `acc_get_current_cuda_device' - Get CUDA device handle.
  ============================================================
  
  _Description_
!      This function returns the CUDA device handle. This handle is the
       same as used by the CUDA Runtime or Driver API's.
  
  _C/C++_:
!      _Prototype_:  `void *acc_get_current_cuda_device(void);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2436,2450 ----
  
  File: libgomp.info,  Node: acc_get_current_cuda_device,  Next: acc_get_current_cuda_context,  Prev: acc_memcpy_from_device,  Up: OpenACC Runtime Library Routines
  
! 5.32 'acc_get_current_cuda_device' - Get CUDA device handle.
  ============================================================
  
  _Description_
!      This function returns the CUDA device handle.  This handle is the
       same as used by the CUDA Runtime or Driver API's.
  
  _C/C++_:
!      _Prototype_:   'void *acc_get_current_cuda_device(void);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2462,2476 ****
  
  File: libgomp.info,  Node: acc_get_current_cuda_context,  Next: acc_get_cuda_stream,  Prev: acc_get_current_cuda_device,  Up: OpenACC Runtime Library Routines
  
! 5.33 `acc_get_current_cuda_context' - Get CUDA context handle.
  ==============================================================
  
  _Description_
!      This function returns the CUDA context handle. This handle is the
       same as used by the CUDA Runtime or Driver API's.
  
  _C/C++_:
!      _Prototype_:  `acc_get_current_cuda_context(void);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2453,2467 ----
  
  File: libgomp.info,  Node: acc_get_current_cuda_context,  Next: acc_get_cuda_stream,  Prev: acc_get_current_cuda_device,  Up: OpenACC Runtime Library Routines
  
! 5.33 'acc_get_current_cuda_context' - Get CUDA context handle.
  ==============================================================
  
  _Description_
!      This function returns the CUDA context handle.  This handle is the
       same as used by the CUDA Runtime or Driver API's.
  
  _C/C++_:
!      _Prototype_:   'acc_get_current_cuda_context(void);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2479,2493 ****
  
  File: libgomp.info,  Node: acc_get_cuda_stream,  Next: acc_set_cuda_stream,  Prev: acc_get_current_cuda_context,  Up: OpenACC Runtime Library Routines
  
! 5.34 `acc_get_cuda_stream' - Get CUDA stream handle.
  ====================================================
  
  _Description_
!      This function returns the CUDA stream handle. This handle is the
       same as used by the CUDA Runtime or Driver API's.
  
  _C/C++_:
!      _Prototype_:  `acc_get_cuda_stream(void);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2470,2484 ----
  
  File: libgomp.info,  Node: acc_get_cuda_stream,  Next: acc_set_cuda_stream,  Prev: acc_get_current_cuda_context,  Up: OpenACC Runtime Library Routines
  
! 5.34 'acc_get_cuda_stream' - Get CUDA stream handle.
  ====================================================
  
  _Description_
!      This function returns the CUDA stream handle.  This handle is the
       same as used by the CUDA Runtime or Driver API's.
  
  _C/C++_:
!      _Prototype_:   'acc_get_cuda_stream(void);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** _Reference_:
*** 2496,2502 ****
  
  File: libgomp.info,  Node: acc_set_cuda_stream,  Prev: acc_get_cuda_stream,  Up: OpenACC Runtime Library Routines
  
! 5.35 `acc_set_cuda_stream' - Set CUDA stream handle.
  ====================================================
  
  _Description_
--- 2487,2493 ----
  
  File: libgomp.info,  Node: acc_set_cuda_stream,  Prev: acc_get_cuda_stream,  Up: OpenACC Runtime Library Routines
  
! 5.35 'acc_set_cuda_stream' - Set CUDA stream handle.
  ====================================================
  
  _Description_
*************** _Description_
*** 2504,2510 ****
       the asynchronous value specified by ASYNC.
  
  _C/C++_:
!      _Prototype_:  `acc_set_cuda_stream(int async void *stream);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
--- 2495,2501 ----
       the asynchronous value specified by ASYNC.
  
  _C/C++_:
!      _Prototype_:   'acc_set_cuda_stream(int async void *stream);'
  
  _Reference_:
       OpenACC specification v2.0 (http://www.openacc.org/), section
*************** File: libgomp.info,  Node: OpenACC Envir
*** 2516,2524 ****
  6 OpenACC Environment Variables
  *******************************
  
! The variables `ACC_DEVICE_TYPE' and `ACC_DEVICE_NUM' are defined by
  section 4 of the OpenACC specification in version 2.0.  The variable
! `GCC_ACC_NOTIFY' is used for diagnostic purposes.
  
  * Menu:
  
--- 2507,2515 ----
  6 OpenACC Environment Variables
  *******************************
  
! The variables 'ACC_DEVICE_TYPE' and 'ACC_DEVICE_NUM' are defined by
  section 4 of the OpenACC specification in version 2.0.  The variable
! 'GCC_ACC_NOTIFY' is used for diagnostic purposes.
  
  * Menu:
  
*************** section 4 of the OpenACC specification i
*** 2529,2535 ****
  
  File: libgomp.info,  Node: ACC_DEVICE_TYPE,  Next: ACC_DEVICE_NUM,  Up: OpenACC Environment Variables
  
! 6.1 `ACC_DEVICE_TYPE'
  =====================
  
  _Reference_:
--- 2520,2526 ----
  
  File: libgomp.info,  Node: ACC_DEVICE_TYPE,  Next: ACC_DEVICE_NUM,  Up: OpenACC Environment Variables
  
! 6.1 'ACC_DEVICE_TYPE'
  =====================
  
  _Reference_:
*************** _Reference_:
*** 2538,2544 ****
  
  File: libgomp.info,  Node: ACC_DEVICE_NUM,  Next: GCC_ACC_NOTIFY,  Prev: ACC_DEVICE_TYPE,  Up: OpenACC Environment Variables
  
! 6.2 `ACC_DEVICE_NUM'
  ====================
  
  _Reference_:
--- 2529,2535 ----
  
  File: libgomp.info,  Node: ACC_DEVICE_NUM,  Next: GCC_ACC_NOTIFY,  Prev: ACC_DEVICE_TYPE,  Up: OpenACC Environment Variables
  
! 6.2 'ACC_DEVICE_NUM'
  ====================
  
  _Reference_:
*************** _Reference_:
*** 2547,2553 ****
  
  File: libgomp.info,  Node: GCC_ACC_NOTIFY,  Prev: ACC_DEVICE_NUM,  Up: OpenACC Environment Variables
  
! 6.3 `GCC_ACC_NOTIFY'
  ====================
  
  _Description_:
--- 2538,2544 ----
  
  File: libgomp.info,  Node: GCC_ACC_NOTIFY,  Prev: ACC_DEVICE_NUM,  Up: OpenACC Environment Variables
  
! 6.3 'GCC_ACC_NOTIFY'
  ====================
  
  _Description_:
*************** File: libgomp.info,  Node: CUDA Streams
*** 2559,2565 ****
  7 CUDA Streams Usage
  ********************
  
! This applies to the `nvptx' plugin only.
  
     The library provides elements that perform asynchronous movement of
  data and asynchronous operation of computing constructs.  This
--- 2550,2556 ----
  7 CUDA Streams Usage
  ********************
  
! This applies to the 'nvptx' plugin only.
  
     The library provides elements that perform asynchronous movement of
  data and asynchronous operation of computing constructs.  This
*************** streams(1).
*** 2568,2595 ****
  
     The primary means by that the asychronous functionality is accessed
  is through the use of those OpenACC directives which make use of the
! `async' and `wait' clauses.  When the `async' clause is first used with
! a directive, it creates a CUDA stream.  If an `async-argument' is used
! with the `async' clause, then the stream is associated with the
! specified `async-argument'.
  
     Following the creation of an association between a CUDA stream and
! the `async-argument' of an `async' clause, both the `wait' clause and
! the `wait' directive can be used.  When either the clause or directive
  is used after stream creation, it creates a rendezvous point whereby
  execution waits until all operations associated with the
! `async-argument', that is, stream, have completed.
  
     Normally, the management of the streams that are created as a result
! of using the `async' clause, is done without any intervention by the
! caller.  This implies the association between the `async-argument' and
  the CUDA stream will be maintained for the lifetime of the program.
  However, this association can be changed through the use of the library
! function `acc_set_cuda_stream'.  When the function
! `acc_set_cuda_stream' is called, the CUDA stream that was originally
! associated with the `async' clause will be destroyed.  Caution should
! be taken when changing the association as subsequent references to the
! `async-argument' refer to a different CUDA stream.
  
     ---------- Footnotes ----------
  
--- 2559,2586 ----
  
     The primary means by that the asychronous functionality is accessed
  is through the use of those OpenACC directives which make use of the
! 'async' and 'wait' clauses.  When the 'async' clause is first used with
! a directive, it creates a CUDA stream.  If an 'async-argument' is used
! with the 'async' clause, then the stream is associated with the
! specified 'async-argument'.
  
     Following the creation of an association between a CUDA stream and
! the 'async-argument' of an 'async' clause, both the 'wait' clause and
! the 'wait' directive can be used.  When either the clause or directive
  is used after stream creation, it creates a rendezvous point whereby
  execution waits until all operations associated with the
! 'async-argument', that is, stream, have completed.
  
     Normally, the management of the streams that are created as a result
! of using the 'async' clause, is done without any intervention by the
! caller.  This implies the association between the 'async-argument' and
  the CUDA stream will be maintained for the lifetime of the program.
  However, this association can be changed through the use of the library
! function 'acc_set_cuda_stream'.  When the function 'acc_set_cuda_stream'
! is called, the CUDA stream that was originally associated with the
! 'async' clause will be destroyed.  Caution should be taken when changing
! the association as subsequent references to the 'async-argument' refer
! to a different CUDA stream.
  
     ---------- Footnotes ----------
  
*************** File: libgomp.info,  Node: OpenACC Libra
*** 2606,2643 ****
  ================
  
  The OpenACC library uses the CUDA Driver API, and may interact with
! programs that use the Runtime library directly, or another library
! based on the Runtime library, e.g., CUBLAS(1).  This chapter describes
! the use cases and what changes are required in order to use both the
! OpenACC library and the CUBLAS and Runtime libraries within a program.
  
  8.2 First invocation: NVIDIA CUBLAS library API
  ===============================================
  
  In this first use case (see below), a function in the CUBLAS library is
! called prior to any of the functions in the OpenACC library. More
! specifically, the function `cublasCreate()'.
  
     When invoked, the function initializes the library and allocates the
  hardware resources on the host and the device on behalf of the caller.
  Once the initialization and allocation has completed, a handle is
! returned to the caller. The OpenACC library also requires
! initialization and allocation of hardware resources. Since the CUBLAS
! library has already allocated the hardware resources for the device,
! all that is left to do is to initialize the OpenACC library and acquire
! the hardware resources on the host.
  
     Prior to calling the OpenACC function that initializes the library
! and allocate the host hardware resources, you need to acquire the
! device number that was allocated during the call to `cublasCreate()'.
! The invoking of the runtime library function `cudaGetDevice()'
! accomplishes this. Once acquired, the device number is passed along
! with the device type as parameters to the OpenACC library function
! `acc_set_device_num()'.
  
!    Once the call to `acc_set_device_num()' has completed, the OpenACC
! library uses the  context that was created during the call to
! `cublasCreate()'. In other words, both libraries will be sharing the
  same context.
  
           /* Create the handle */
--- 2597,2634 ----
  ================
  
  The OpenACC library uses the CUDA Driver API, and may interact with
! programs that use the Runtime library directly, or another library based
! on the Runtime library, e.g., CUBLAS(1). This chapter describes the use
! cases and what changes are required in order to use both the OpenACC
! library and the CUBLAS and Runtime libraries within a program.
  
  8.2 First invocation: NVIDIA CUBLAS library API
  ===============================================
  
  In this first use case (see below), a function in the CUBLAS library is
! called prior to any of the functions in the OpenACC library.  More
! specifically, the function 'cublasCreate()'.
  
     When invoked, the function initializes the library and allocates the
  hardware resources on the host and the device on behalf of the caller.
  Once the initialization and allocation has completed, a handle is
! returned to the caller.  The OpenACC library also requires
! initialization and allocation of hardware resources.  Since the CUBLAS
! library has already allocated the hardware resources for the device, all
! that is left to do is to initialize the OpenACC library and acquire the
! hardware resources on the host.
  
     Prior to calling the OpenACC function that initializes the library
! and allocate the host hardware resources, you need to acquire the device
! number that was allocated during the call to 'cublasCreate()'.  The
! invoking of the runtime library function 'cudaGetDevice()' accomplishes
! this.  Once acquired, the device number is passed along with the device
! type as parameters to the OpenACC library function
! 'acc_set_device_num()'.
  
!    Once the call to 'acc_set_device_num()' has completed, the OpenACC
! library uses the context that was created during the call to
! 'cublasCreate()'.  In other words, both libraries will be sharing the
  same context.
  
           /* Create the handle */
*************** same context.
*** 2658,2691 ****
  
           /* Initialize OpenACC library and use device 'dev' */
           acc_set_device_num(dev, acc_device_nvidia);
!                                  Use Case 1
  
  8.3 First invocation: OpenACC library API
  =========================================
  
  In this second use case (see below), a function in the OpenACC library
! is called prior to any of the functions in the CUBLAS library. More
! specificially, the function `acc_set_device_num()'.
  
!    In the use case presented here, the function `acc_set_device_num()'
  is used to both initialize the OpenACC library and allocate the hardware
! resources on the host and the device. In the call to the function, the
! call parameters specify which device to use and what device type to
! use, i.e., `acc_device_nvidia'. It should be noted that this is but one
  method to initialize the OpenACC library and allocate the appropriate
! hardware resources. Other methods are available through the use of
  environment variables and these will be discussed in the next section.
  
!    Once the call to `acc_set_device_num()' has completed, other OpenACC
  functions can be called as seen with multiple calls being made to
! `acc_copyin()'. In addition, calls can be made to functions in the
! CUBLAS library. In the use case a call to `cublasCreate()' is made
! subsequent to the calls to `acc_copyin()'.  As seen in the previous use
! case, a call to `cublasCreate()' initializes the CUBLAS library and
  allocates the hardware resources on the host and the device.  However,
! since the device has already been allocated, `cublasCreate()' will only
  initialize the CUBLAS library and allocate the appropriate hardware
! resources on the host. The context that was created as part of the
  OpenACC initialization is shared with the CUBLAS library, similarly to
  the first use case.
  
--- 2649,2683 ----
  
           /* Initialize OpenACC library and use device 'dev' */
           acc_set_device_num(dev, acc_device_nvidia);
! 
!                               Use Case 1
  
  8.3 First invocation: OpenACC library API
  =========================================
  
  In this second use case (see below), a function in the OpenACC library
! is called prior to any of the functions in the CUBLAS library.  More
! specificially, the function 'acc_set_device_num()'.
  
!    In the use case presented here, the function 'acc_set_device_num()'
  is used to both initialize the OpenACC library and allocate the hardware
! resources on the host and the device.  In the call to the function, the
! call parameters specify which device to use and what device type to use,
! i.e., 'acc_device_nvidia'.  It should be noted that this is but one
  method to initialize the OpenACC library and allocate the appropriate
! hardware resources.  Other methods are available through the use of
  environment variables and these will be discussed in the next section.
  
!    Once the call to 'acc_set_device_num()' has completed, other OpenACC
  functions can be called as seen with multiple calls being made to
! 'acc_copyin()'.  In addition, calls can be made to functions in the
! CUBLAS library.  In the use case a call to 'cublasCreate()' is made
! subsequent to the calls to 'acc_copyin()'.  As seen in the previous use
! case, a call to 'cublasCreate()' initializes the CUBLAS library and
  allocates the hardware resources on the host and the device.  However,
! since the device has already been allocated, 'cublasCreate()' will only
  initialize the CUBLAS library and allocate the appropriate hardware
! resources on the host.  The context that was created as part of the
  OpenACC initialization is shared with the CUBLAS library, similarly to
  the first use case.
  
*************** the first use case.
*** 2727,2760 ****
  
           /* Copy the results from the device */
           acc_memcpy_from_device(&h_Y1[0], d_Y, N * sizeof (float));
!                                  Use Case 2
  
  8.4 OpenACC library and environment variables
  =============================================
  
  There are two environment variables associated with the OpenACC library
  that may be used to control the device type and device number:
! `ACC_DEVICE_TYPE' and `ACC_DEVICE_NUM', respecively. These two
  environement variables can be used as an alternative to calling
! `acc_set_device_num()'. As seen in the second use case, the device type
! and device number were specified using `acc_set_device_num()'.  If
  however, the aforementioned environment variables were set, then the
! call to `acc_set_device_num()' would not be required.
  
!    The use of the environment variables is only relevant when an
! OpenACC function is called prior to a call to `cudaCreate()'. If
! `cudaCreate()' is called prior to a call to an OpenACC function, then
! you must call `acc_set_device_num()'(2)
  
     ---------- Footnotes ----------
  
     (1) See section 2.26, "Interactions with the CUDA Driver API" in
  "CUDA Runtime API", Version 5.5, and section 2.27, "VDPAU
! Interoperability", in "CUDA Driver API", TRM-06703-001, Version 5.5,
! for additional information on library interoperability.
  
!    (2) More complete information about `ACC_DEVICE_TYPE' and
! `ACC_DEVICE_NUM' can be found in sections 4.1 and 4.2 of the OpenACC
  (http://www.openacc.org/) Application Programming Interface”, Version
  2.0.
  
--- 2719,2753 ----
  
           /* Copy the results from the device */
           acc_memcpy_from_device(&h_Y1[0], d_Y, N * sizeof (float));
! 
!                               Use Case 2
  
  8.4 OpenACC library and environment variables
  =============================================
  
  There are two environment variables associated with the OpenACC library
  that may be used to control the device type and device number:
! 'ACC_DEVICE_TYPE' and 'ACC_DEVICE_NUM', respecively.  These two
  environement variables can be used as an alternative to calling
! 'acc_set_device_num()'.  As seen in the second use case, the device type
! and device number were specified using 'acc_set_device_num()'.  If
  however, the aforementioned environment variables were set, then the
! call to 'acc_set_device_num()' would not be required.
  
!    The use of the environment variables is only relevant when an OpenACC
! function is called prior to a call to 'cudaCreate()'.  If 'cudaCreate()'
! is called prior to a call to an OpenACC function, then you must call
! 'acc_set_device_num()'(2)
  
     ---------- Footnotes ----------
  
     (1) See section 2.26, "Interactions with the CUDA Driver API" in
  "CUDA Runtime API", Version 5.5, and section 2.27, "VDPAU
! Interoperability", in "CUDA Driver API", TRM-06703-001, Version 5.5, for
! additional information on library interoperability.
  
!    (2) More complete information about 'ACC_DEVICE_TYPE' and
! 'ACC_DEVICE_NUM' can be found in sections 4.1 and 4.2 of the OpenACC
  (http://www.openacc.org/) Application Programming Interface”, Version
  2.0.
  
*************** File: libgomp.info,  Node: The libgomp A
*** 2764,2771 ****
  9 The libgomp ABI
  *****************
  
! The following sections present notes on the external ABI as presented
! by libgomp.  Only maintainers should need them.
  
  * Menu:
  
--- 2757,2764 ----
  9 The libgomp ABI
  *****************
  
! The following sections present notes on the external ABI as presented by
! libgomp.  Only maintainers should need them.
  
  * Menu:
  
*************** File: libgomp.info,  Node: Implementing
*** 2826,2832 ****
  9.3 Implementing ATOMIC construct
  =================================
  
! The target should implement the `__sync' builtins.
  
     Failing that we could add
  
--- 2819,2825 ----
  9.3 Implementing ATOMIC construct
  =================================
  
! The target should implement the '__sync' builtins.
  
     Failing that we could add
  
*************** File: libgomp.info,  Node: Implementing
*** 2842,2848 ****
  9.4 Implementing FLUSH construct
  ================================
  
! Expands to the `__sync_synchronize' builtin.
  
  
  File: libgomp.info,  Node: Implementing BARRIER construct,  Next: Implementing THREADPRIVATE construct,  Prev: Implementing FLUSH construct,  Up: The libgomp ABI
--- 2835,2841 ----
  9.4 Implementing FLUSH construct
  ================================
  
! Expands to the '__sync_synchronize' builtin.
  
  
  File: libgomp.info,  Node: Implementing BARRIER construct,  Next: Implementing THREADPRIVATE construct,  Prev: Implementing FLUSH construct,  Up: The libgomp ABI
*************** File: libgomp.info,  Node: Implementing
*** 2858,2867 ****
  9.6 Implementing THREADPRIVATE construct
  ========================================
  
! In _most_ cases we can map this directly to `__thread'.  Except that
! OMP allows constructors for C++ objects.  We can either refuse to
! support this (how often is it used?) or we can implement something akin
! to .ctors.
  
     Even more ideally, this ctor feature is handled by extensions to the
  main pthreads library.  Failing that, we can have a set of entry points
--- 2851,2860 ----
  9.6 Implementing THREADPRIVATE construct
  ========================================
  
! In _most_ cases we can map this directly to '__thread'.  Except that OMP
! allows constructors for C++ objects.  We can either refuse to support
! this (how often is it used?)  or we can implement something akin to
! .ctors.
  
     Even more ideally, this ctor feature is handled by extensions to the
  main pthreads library.  Failing that, we can have a set of entry points
*************** copy in values for scalar and "small" st
*** 2893,2900 ****
  others TREE_ADDRESSABLE types.  In the subfunction, copy the value into
  the local variable.
  
!    It is not clear what to do with bare FOR or SECTION blocks.  The
! only thing I can figure is that we do something like:
  
       #pragma omp for firstprivate(x) lastprivate(y)
       for (int i = 0; i < n; ++i)
--- 2886,2893 ----
  others TREE_ADDRESSABLE types.  In the subfunction, copy the value into
  the local variable.
  
!    It is not clear what to do with bare FOR or SECTION blocks.  The only
! thing I can figure is that we do something like:
  
       #pragma omp for firstprivate(x) lastprivate(y)
       for (int i = 0; i < n; ++i)
*************** only thing I can figure is that we do so
*** 2912,2919 ****
       }
  
     where the "x=x" and "y=y" assignments actually have different uids
! for the two variables, i.e. not something you could write directly in
! C.  Presumably this only makes sense if the "outer" x and y are global
  variables.
  
     COPYPRIVATE would work the same way, except the structure broadcast
--- 2905,2912 ----
       }
  
     where the "x=x" and "y=y" assignments actually have different uids
! for the two variables, i.e.  not something you could write directly in
! C. Presumably this only makes sense if the "outer" x and y are global
  variables.
  
     COPYPRIVATE would work the same way, except the structure broadcast
*************** File: libgomp.info,  Node: Implementing
*** 2926,2935 ****
  =================================
  
  The private struct mentioned in the previous section should have a
! pointer to an array of the type of the variable, indexed by the
! thread's TEAM_ID.  The thread stores its final value into the array,
! and after the barrier, the master thread iterates over the array to
! collect the values.
  
  
  File: libgomp.info,  Node: Implementing PARALLEL construct,  Next: Implementing FOR construct,  Prev: Implementing REDUCTION clause,  Up: The libgomp ABI
--- 2919,2928 ----
  =================================
  
  The private struct mentioned in the previous section should have a
! pointer to an array of the type of the variable, indexed by the thread's
! TEAM_ID.  The thread stores its final value into the array, and after
! the barrier, the master thread iterates over the array to collect the
! values.
  
  
  File: libgomp.info,  Node: Implementing PARALLEL construct,  Next: Implementing FOR construct,  Prev: Implementing REDUCTION clause,  Up: The libgomp ABI
*************** FIRSTPRIVATE et al.
*** 2966,2979 ****
     The NUM_THREADS argument is 1 if an IF clause is present and false,
  or the value of the NUM_THREADS clause, if present, or 0.
  
!    The function needs to create the appropriate number of threads
! and/or launch them from the dock.  It needs to create the team
! structure and assign team ids.
  
         void GOMP_parallel_end (void)
  
     Tears down the team and returns us to the previous
! `omp_in_parallel()' state.
  
  
  File: libgomp.info,  Node: Implementing FOR construct,  Next: Implementing ORDERED construct,  Prev: Implementing PARALLEL construct,  Up: The libgomp ABI
--- 2959,2972 ----
     The NUM_THREADS argument is 1 if an IF clause is present and false,
  or the value of the NUM_THREADS clause, if present, or 0.
  
!    The function needs to create the appropriate number of threads and/or
! launch them from the dock.  It needs to create the team structure and
! assign team ids.
  
         void GOMP_parallel_end (void)
  
     Tears down the team and returns us to the previous
! 'omp_in_parallel()' state.
  
  
  File: libgomp.info,  Node: Implementing FOR construct,  Next: Implementing ORDERED construct,  Prev: Implementing PARALLEL construct,  Up: The libgomp ABI
*************** non-constant STEP, there isn't really.
*** 3025,3038 ****
  evaluate it as many times as we want, and any variables involved should
  automatically be handled as PRIVATE or SHARED like any other variables.
  So the expression should remain evaluable in the subfunction.  We can
! also pull it into a local variable if we like, but since its supposed
! to remain unchanged, we can also not if we like.
  
!    If we have SCHEDULE(STATIC), and no ORDERED, then we ought to be
! able to get away with no work-sharing context at all, since we can
! simply perform the arithmetic directly in each thread to divide up the
! iterations.  Which would mean that we wouldn't need to call any of
! these routines.
  
     There are separate routines for handling loops with an ORDERED
  clause.  Bookkeeping for that is non-trivial...
--- 3018,3031 ----
  evaluate it as many times as we want, and any variables involved should
  automatically be handled as PRIVATE or SHARED like any other variables.
  So the expression should remain evaluable in the subfunction.  We can
! also pull it into a local variable if we like, but since its supposed to
! remain unchanged, we can also not if we like.
  
!    If we have SCHEDULE(STATIC), and no ORDERED, then we ought to be able
! to get away with no work-sharing context at all, since we can simply
! perform the arithmetic directly in each thread to divide up the
! iterations.  Which would mean that we wouldn't need to call any of these
! routines.
  
     There are separate routines for handling loops with an ORDERED
  clause.  Bookkeeping for that is non-trivial...
*************** File: libgomp.info,  Node: Reporting Bug
*** 3134,3141 ****
  
  Bugs in the GNU Offloading and Multi Processing Runtime Library should
  be reported via Bugzilla (http://gcc.gnu.org/bugzilla/).  Please add
! "openacc", or "openmp", or both to the keywords field in the bug
! report, as appropriate.
  
  
  File: libgomp.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: Reporting Bugs,  Up: Top
--- 3127,3134 ----
  
  Bugs in the GNU Offloading and Multi Processing Runtime Library should
  be reported via Bugzilla (http://gcc.gnu.org/bugzilla/).  Please add
! "openacc", or "openmp", or both to the keywords field in the bug report,
! as appropriate.
  
  
  File: libgomp.info,  Node: Copying,  Next: GNU Free Documentation License,  Prev: Reporting Bugs,  Up: Top
*************** GNU General Public License
*** 3145,3151 ****
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
--- 3138,3144 ----
  
                          Version 3, 29 June 2007
  
!      Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies of this
       license document, but changing it is not allowed.
*************** want it, that you can change the softwar
*** 3173,3181 ****
  free programs, and that you know you can do these things.
  
     To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you
! have certain responsibilities if you distribute copies of the software,
! or if you modify it: responsibilities to respect the freedom of others.
  
     For example, if you distribute copies of such a program, whether
  gratis or for a fee, you must pass on to the recipients the same
--- 3166,3174 ----
  free programs, and that you know you can do these things.
  
     To protect your rights, we need to prevent others from denying you
! these rights or asking you to surrender the rights.  Therefore, you have
! certain responsibilities if you distribute copies of the software, or if
! you modify it: responsibilities to respect the freedom of others.
  
     For example, if you distribute copies of such a program, whether
  gratis or for a fee, you must pass on to the recipients the same
*************** changed, so that their problems will not
*** 3194,3209 ****
  authors of previous versions.
  
     Some devices are designed to deny users access to install or run
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     Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
--- 3187,3201 ----
  authors of previous versions.
  
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! have designed this version of the GPL to prohibit the practice for those
! products.  If such problems arise substantially in other domains, we
! stand ready to extend this provision to those domains in future versions
! of the GPL, as needed to protect the freedom of users.
  
     Finally, every program is threatened constantly by software patents.
  States should not allow patents to restrict development and use of
*************** TERMS AND CONDITIONS
*** 3240,3247 ****
  
       To "propagate" a work means to do anything with it that, without
       permission, would make you directly or secondarily liable for
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--- 3232,3239 ----
  
       To "propagate" a work means to do anything with it that, without
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*************** TERMS AND CONDITIONS
*** 3255,3262 ****
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--- 3247,3254 ----
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*************** TERMS AND CONDITIONS
*** 3264,3271 ****
    1. Source Code.
  
       The "source code" for a work means the preferred form of the work
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--- 3256,3263 ----
    1. Source Code.
  
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*************** TERMS AND CONDITIONS
*** 3276,3285 ****
       The "System Libraries" of an executable work include anything,
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--- 3268,3277 ----
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*************** TERMS AND CONDITIONS
*** 3287,3301 ****
  
       The "Corresponding Source" for a work in object code form means all
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--- 3279,3293 ----
  
       The "Corresponding Source" for a work in object code form means all
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*************** TERMS AND CONDITIONS
*** 3312,3333 ****
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output,
!      given its content, constitutes a covered work.  This License
!      acknowledges your rights of fair use or other equivalent, as
!      provided by copyright law.
  
       You may make, run and propagate covered works that you do not
       convey, without conditions so long as your license otherwise
       remains in force.  You may convey covered works to others for the
!      sole purpose of having them make modifications exclusively for
!      you, or provide you with facilities for running those works,
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!      conveying all material for which you do not control copyright.
!      Those thus making or running the covered works for you must do so
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       Conveying under any other circumstances is permitted solely under
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--- 3304,3325 ----
       copyright on the Program, and are irrevocable provided the stated
       conditions are met.  This License explicitly affirms your unlimited
       permission to run the unmodified Program.  The output from running
!      a covered work is covered by this License only if the output, given
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       You may make, run and propagate covered works that you do not
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!      or provide you with facilities for running those works, provided
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       Conveying under any other circumstances is permitted solely under
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*************** TERMS AND CONDITIONS
*** 3344,3351 ****
       When you convey a covered work, you waive any legal power to forbid
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       rights to forbid circumvention of technological measures.
  
--- 3336,3343 ----
       When you convey a covered work, you waive any legal power to forbid
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*************** TERMS AND CONDITIONS
*** 3415,3422 ****
  
         b. Convey the object code in, or embodied in, a physical product
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--- 3407,3414 ----
  
         b. Convey the object code in, or embodied in, a physical product
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*************** TERMS AND CONDITIONS
*** 3426,3457 ****
            to copy the Corresponding Source from a network server at no
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!        c. Convey individual copies of the object code with a copy of
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         d. Convey the object code by offering access from a designated
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- 
       A separable portion of the object code, whose source code is
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--- 3418,3448 ----
            to copy the Corresponding Source from a network server at no
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!        c. Convey individual copies of the object code with a copy of the
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*** 3459,3466 ****
       A "User Product" is either (1) a "consumer product", which means
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--- 3450,3457 ----
       A "User Product" is either (1) a "consumer product", which means
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*** 3491,3501 ****
  
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--- 3482,3492 ----
  
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*** 3525,3532 ****
  
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--- 3516,3523 ----
  
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*** 3536,3544 ****
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--- 3527,3534 ----
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*** 3557,3567 ****
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or
!      conveying under this License, you may add to a covered work
!      material governed by the terms of that license document, provided
!      that the further restriction does not survive such relicensing or
!      conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
--- 3547,3556 ----
       you received it, or any part of it, contains a notice stating that
       it is governed by this License along with a term that is a further
       restriction, you may remove that term.  If a license document
!      contains a further restriction but permits relicensing or conveying
!      under this License, you may add to a covered work material governed
!      by the terms of that license document, provided that the further
!      restriction does not survive such relicensing or conveying.
  
       If you add terms to a covered work in accord with this section, you
       must place, in the relevant source files, a statement of the
*************** TERMS AND CONDITIONS
*** 3577,3589 ****
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under
!      the third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 3566,3578 ----
       You may not propagate or modify a covered work except as expressly
       provided under this License.  Any attempt otherwise to propagate or
       modify it is void, and will automatically terminate your rights
!      under this License (including any patent licenses granted under the
!      third paragraph of section 11).
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** TERMS AND CONDITIONS
*** 3595,3604 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, you do not qualify to receive new
!      licenses for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
--- 3584,3593 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, you do not qualify to receive new licenses
!      for the same material under section 10.
  
    9. Acceptance Not Required for Having Copies.
  
*************** TERMS AND CONDITIONS
*** 3612,3618 ****
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!  10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
--- 3601,3607 ----
       by modifying or propagating a covered work, you indicate your
       acceptance of this License to do so.
  
!   10. Automatic Licensing of Downstream Recipients.
  
       Each time you convey a covered work, the recipient automatically
       receives a license from the original licensors, to run, modify and
*************** TERMS AND CONDITIONS
*** 3626,3646 ****
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to
!      possession of the Corresponding Source of the work from the
!      predecessor in interest, if the predecessor has it or can get it
!      with reasonable efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for
!      exercise of rights granted under this License, and you may not
!      initiate litigation (including a cross-claim or counterclaim in a
!      lawsuit) alleging that any patent claim is infringed by making,
!      using, selling, offering for sale, or importing the Program or any
!      portion of it.
  
!  11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
--- 3615,3635 ----
       covered work results from an entity transaction, each party to that
       transaction who receives a copy of the work also receives whatever
       licenses to the work the party's predecessor in interest had or
!      could give under the previous paragraph, plus a right to possession
!      of the Corresponding Source of the work from the predecessor in
!      interest, if the predecessor has it or can get it with reasonable
!      efforts.
  
       You may not impose any further restrictions on the exercise of the
       rights granted or affirmed under this License.  For example, you
!      may not impose a license fee, royalty, or other charge for exercise
!      of rights granted under this License, and you may not initiate
!      litigation (including a cross-claim or counterclaim in a lawsuit)
!      alleging that any patent claim is infringed by making, using,
!      selling, offering for sale, or importing the Program or any portion
!      of it.
  
!   11. Patents.
  
       A "contributor" is a copyright holder who authorizes use under this
       License of the Program or a work on which the Program is based.
*************** TERMS AND CONDITIONS
*** 3660,3674 ****
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its
!      contributor version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To
!      "grant" such a patent license to a party means to make such an
!      agreement or commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
--- 3649,3663 ----
       Each contributor grants you a non-exclusive, worldwide,
       royalty-free patent license under the contributor's essential
       patent claims, to make, use, sell, offer for sale, import and
!      otherwise run, modify and propagate the contents of its contributor
!      version.
  
       In the following three paragraphs, a "patent license" is any
       express agreement or commitment, however denominated, not to
       enforce a patent (such as an express permission to practice a
!      patent or covenant not to sue for patent infringement).  To "grant"
!      such a patent license to a party means to make such an agreement or
!      commitment not to enforce a patent against the party.
  
       If you convey a covered work, knowingly relying on a patent
       license, and the Corresponding Source of the work is not available
*************** TERMS AND CONDITIONS
*** 3698,3733 ****
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under
!      which you make payment to the third party based on the extent of
!      your activity of conveying the work, and under which the third
!      party grants, to any of the parties who would receive the covered
!      work from you, a discriminatory patent license (a) in connection
!      with copies of the covered work conveyed by you (or copies made
!      from those copies), or (b) primarily for and in connection with
!      specific products or compilations that contain the covered work,
!      unless you entered into that arrangement, or that patent license
!      was granted, prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!  12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order,
!      agreement or otherwise) that contradict the conditions of this
!      License, they do not excuse you from the conditions of this
!      License.  If you cannot convey a covered work so as to satisfy
!      simultaneously your obligations under this License and any other
!      pertinent obligations, then as a consequence you may not convey it
!      at all.  For example, if you agree to terms that obligate you to
!      collect a royalty for further conveying from those to whom you
!      convey the Program, the only way you could satisfy both those
!      terms and this License would be to refrain entirely from conveying
!      the Program.
  
!  13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
--- 3687,3721 ----
       conditioned on the non-exercise of one or more of the rights that
       are specifically granted under this License.  You may not convey a
       covered work if you are a party to an arrangement with a third
!      party that is in the business of distributing software, under which
!      you make payment to the third party based on the extent of your
!      activity of conveying the work, and under which the third party
!      grants, to any of the parties who would receive the covered work
!      from you, a discriminatory patent license (a) in connection with
!      copies of the covered work conveyed by you (or copies made from
!      those copies), or (b) primarily for and in connection with specific
!      products or compilations that contain the covered work, unless you
!      entered into that arrangement, or that patent license was granted,
!      prior to 28 March 2007.
  
       Nothing in this License shall be construed as excluding or limiting
       any implied license or other defenses to infringement that may
       otherwise be available to you under applicable patent law.
  
!   12. No Surrender of Others' Freedom.
  
!      If conditions are imposed on you (whether by court order, agreement
!      or otherwise) that contradict the conditions of this License, they
!      do not excuse you from the conditions of this License.  If you
!      cannot convey a covered work so as to satisfy simultaneously your
!      obligations under this License and any other pertinent obligations,
!      then as a consequence you may not convey it at all.  For example,
!      if you agree to terms that obligate you to collect a royalty for
!      further conveying from those to whom you convey the Program, the
!      only way you could satisfy both those terms and this License would
!      be to refrain entirely from conveying the Program.
  
!   13. Use with the GNU Affero General Public License.
  
       Notwithstanding any other provision of this License, you have
       permission to link or combine any covered work with a work licensed
*************** TERMS AND CONDITIONS
*** 3738,3759 ****
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!  14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.
!      Such new versions will be similar in spirit to the present
!      version, but may differ in detail to address new problems or
!      concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the
!      Free Software Foundation.  If the Program does not specify a
!      version number of the GNU General Public License, you may choose
!      any version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
--- 3726,3746 ----
       General Public License, section 13, concerning interaction through
       a network will apply to the combination as such.
  
!   14. Revised Versions of this License.
  
       The Free Software Foundation may publish revised and/or new
!      versions of the GNU General Public License from time to time.  Such
!      new versions will be similar in spirit to the present version, but
!      may differ in detail to address new problems or concerns.
  
       Each version is given a distinguishing version number.  If the
       Program specifies that a certain numbered version of the GNU
       General Public License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
!      that numbered version or of any later version published by the Free
!      Software Foundation.  If the Program does not specify a version
!      number of the GNU General Public License, you may choose any
!      version ever published by the Free Software Foundation.
  
       If the Program specifies that a proxy can decide which future
       versions of the GNU General Public License can be used, that
*************** TERMS AND CONDITIONS
*** 3765,3788 ****
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!  15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!  16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU
!      FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
--- 3752,3775 ----
       author or copyright holder as a result of your choosing to follow a
       later version.
  
!   15. Disclaimer of Warranty.
  
       THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
!      APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
       COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
       WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
       INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
!      MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE
       RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
       SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
       NECESSARY SERVICING, REPAIR OR CORRECTION.
  
!   16. Limitation of Liability.
  
       IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
       WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
!      AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
!      DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
       CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
       THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
       BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
*************** TERMS AND CONDITIONS
*** 3790,3796 ****
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!  17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
--- 3777,3783 ----
       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF
       THE POSSIBILITY OF SUCH DAMAGES.
  
!   17. Interpretation of Sections 15 and 16.
  
       If the disclaimer of warranty and limitation of liability provided
       above cannot be given local legal effect according to their terms,
*************** TERMS AND CONDITIONS
*** 3799,3805 ****
       connection with the Program, unless a warranty or assumption of
       liability accompanies a copy of the Program in return for a fee.
  
- 
  END OF TERMS AND CONDITIONS
  ===========================
  
--- 3786,3791 ----
*************** state the exclusion of warranty; and eac
*** 3830,3836 ****
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see `http://www.gnu.org/licenses/'.
  
     Also add information on how to contact you by electronic and paper
  mail.
--- 3816,3822 ----
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
!      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
     Also add information on how to contact you by electronic and paper
  mail.
*************** mail.
*** 3839,3849 ****
  notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type `show c' for details.
  
!    The hypothetical commands `show w' and `show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
--- 3825,3835 ----
  notice like this when it starts in an interactive mode:
  
       PROGRAM Copyright (C) YEAR NAME OF AUTHOR
!      This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
       This is free software, and you are welcome to redistribute it
!      under certain conditions; type 'show c' for details.
  
!    The hypothetical commands 'show w' and 'show c' should show the
  appropriate parts of the General Public License.  Of course, your
  program's commands might be different; for a GUI interface, you would
  use an "about box".
*************** use an "about box".
*** 3851,3864 ****
     You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see `http://www.gnu.org/licenses/'.
  
     The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read `http://www.gnu.org/philosophy/why-not-lgpl.html'.
  
  
  File: libgomp.info,  Node: GNU Free Documentation License,  Next: Funding,  Prev: Copying,  Up: Top
--- 3837,3850 ----
     You should also get your employer (if you work as a programmer) or
  school, if any, to sign a "copyright disclaimer" for the program, if
  necessary.  For more information on this, and how to apply and follow
! the GNU GPL, see <http://www.gnu.org/licenses/>.
  
     The GNU General Public License does not permit incorporating your
  program into proprietary programs.  If your program is a subroutine
  library, you may consider it more useful to permit linking proprietary
  applications with the library.  If this is what you want to do, use the
  GNU Lesser General Public License instead of this License.  But first,
! please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.
  
  
  File: libgomp.info,  Node: GNU Free Documentation License,  Next: Funding,  Prev: Copying,  Up: Top
*************** GNU Free Documentation License
*** 3869,3875 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 3855,3861 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 3894,3914 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 3880,3900 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 3926,3937 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 3912,3923 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 3942,3968 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 3928,3954 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 4000,4007 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 3986,3993 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 4015,4026 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 4001,4011 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 4028,4067 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 4013,4051 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 4091,4121 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 4075,4104 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 4128,4138 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 4111,4121 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 4141,4155 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 4124,4138 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 4159,4166 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 4142,4149 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 4187,4206 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 4170,4189 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 4245,4252 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 4228,4235 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 4258,4290 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 4241,4273 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 4314,4320 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 4297,4302 ----
*************** notices just after the title page:
*** 4331,4337 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 4313,4319 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 4342,4350 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: libgomp.info,  Node: Funding,  Next: Library Index,  Prev: GNU Free Documentation License,  Up: Top
--- 4324,4332 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: libgomp.info,  Node: Funding,  Next: Library Index,  Prev: GNU Free Documentation License,  Up: Top
*************** for comparison.
*** 4374,4381 ****
  
     Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.
! If the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
     Some redistributors do development work themselves.  This is useful
--- 4356,4363 ----
  
     Even a precise fraction "of the profits from this disk" is not very
  meaningful, since creative accounting and unrelated business decisions
! can greatly alter what fraction of the sales price counts as profit.  If
! the price you pay is $50, ten percent of the profit is probably less
  than a dollar; it might be a few cents, or nothing at all.
  
     Some redistributors do development work themselves.  This is useful
*************** difference than others.  For example, ma
*** 4385,4392 ****
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection
! contribute more; major new features or packages contribute the most.
  
     By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
--- 4367,4374 ----
  a program contributes very little; maintaining the standard version of a
  program for the whole community contributes much.  Easy new ports
  contribute little, since someone else would surely do them; difficult
! ports such as adding a new CPU to the GNU Compiler Collection contribute
! more; major new features or packages contribute the most.
  
     By establishing the idea that supporting further development is "the
  proper thing to do" when distributing free software for a fee, we can
*************** Library Index
*** 4405,4574 ****
  [index]
  * Menu:
  
- * Environment Variable <1>:              GOMP_RTEMS_THREAD_POOLS.
-                                                                 (line 6)
- * Environment Variable <2>:              GOMP_SPINCOUNT.        (line 6)
- * Environment Variable <3>:              GOMP_STACKSIZE.        (line 6)
- * Environment Variable <4>:              GOMP_DEBUG.            (line 6)
- * Environment Variable <5>:              GOMP_CPU_AFFINITY.     (line 6)
- * Environment Variable <6>:              OMP_WAIT_POLICY.       (line 6)
- * Environment Variable <7>:              OMP_THREAD_LIMIT.      (line 6)
- * Environment Variable <8>:              OMP_SCHEDULE.          (line 6)
- * Environment Variable <9>:              OMP_STACKSIZE.         (line 6)
- * Environment Variable <10>:             OMP_PLACES.            (line 6)
- * Environment Variable <11>:             OMP_PROC_BIND.         (line 6)
- * Environment Variable <12>:             OMP_NUM_THREADS.       (line 6)
- * Environment Variable <13>:             OMP_NESTED.            (line 6)
- * Environment Variable <14>:             OMP_MAX_TASK_PRIORITY. (line 6)
- * Environment Variable <15>:             OMP_MAX_ACTIVE_LEVELS. (line 6)
- * Environment Variable <16>:             OMP_DYNAMIC.           (line 6)
- * Environment Variable <17>:             OMP_DEFAULT_DEVICE.    (line 6)
- * Environment Variable <18>:             OMP_DISPLAY_ENV.       (line 6)
  * Environment Variable:                  OMP_CANCELLATION.      (line 6)
! * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                                  (line 6)
! * Implementation specific setting <1>:   GOMP_RTEMS_THREAD_POOLS.
                                                                  (line 6)
- * Implementation specific setting <2>:   GOMP_SPINCOUNT.        (line 6)
- * Implementation specific setting <3>:   GOMP_STACKSIZE.        (line 6)
- * Implementation specific setting <4>:   OMP_SCHEDULE.          (line 6)
- * Implementation specific setting <5>:   OMP_NUM_THREADS.       (line 6)
  * Implementation specific setting:       OMP_NESTED.            (line 6)
  * Introduction:                          Top.                   (line 6)
  
  
  
  Tag Table:
! Node: Top2130
! Node: Enabling OpenMP4536
! Node: Runtime Library Routines5323
! Node: omp_get_active_level8386
! Node: omp_get_ancestor_thread_num9084
! Node: omp_get_cancellation10011
! Node: omp_get_default_device10823
! Node: omp_get_dynamic11497
! Node: omp_get_level12370
! Node: omp_get_max_active_levels12988
! Node: omp_get_max_task_priority13691
! Node: omp_get_max_threads14309
! Node: omp_get_nested15064
! Node: omp_get_num_devices15976
! Node: omp_get_num_procs16495
! Node: omp_get_num_teams17032
! Node: omp_get_num_threads17546
! Node: omp_get_proc_bind18633
! Node: omp_get_schedule19551
! Node: omp_get_team_num20500
! Node: omp_get_team_size20997
! Node: omp_get_thread_limit21954
! Node: omp_get_thread_num22571
! Node: omp_in_parallel23440
! Node: omp_in_final24087
! Node: omp_is_initial_device24759
! Node: omp_set_default_device25450
! Node: omp_set_dynamic26238
! Node: omp_set_max_active_levels27121
! Node: omp_set_nested27895
! Node: omp_set_num_threads28784
! Node: omp_set_schedule29649
! Node: omp_init_lock30725
! Node: omp_set_lock31375
! Node: omp_test_lock32227
! Node: omp_unset_lock33200
! Node: omp_destroy_lock34128
! Node: omp_init_nest_lock34802
! Node: omp_set_nest_lock35534
! Node: omp_test_nest_lock36451
! Node: omp_unset_nest_lock37481
! Node: omp_destroy_nest_lock38493
! Node: omp_get_wtick39241
! Node: omp_get_wtime39831
! Node: Environment Variables40605
! Node: OMP_CANCELLATION42160
! Node: OMP_DISPLAY_ENV42693
! Node: OMP_DEFAULT_DEVICE43396
! Node: OMP_DYNAMIC44176
! Node: OMP_MAX_ACTIVE_LEVELS44772
! Node: OMP_MAX_TASK_PRIORITY45422
! Node: OMP_NESTED46082
! Node: OMP_NUM_THREADS46687
! Node: OMP_PROC_BIND47376
! Node: OMP_PLACES48568
! Node: OMP_STACKSIZE50745
! Node: OMP_SCHEDULE51569
! Node: OMP_THREAD_LIMIT52267
! Node: OMP_WAIT_POLICY52867
! Node: GOMP_CPU_AFFINITY53559
! Node: GOMP_DEBUG55290
! Node: GOMP_STACKSIZE55797
! Node: GOMP_SPINCOUNT56626
! Node: GOMP_RTEMS_THREAD_POOLS57835
! Node: Enabling OpenACC60016
! Node: OpenACC Runtime Library Routines61010
! Node: acc_get_num_devices64804
! Node: acc_set_device_type65527
! Node: acc_get_device_type66288
! Node: acc_set_device_num67000
! Node: acc_get_device_num67799
! Node: acc_async_test68592
! Node: acc_async_test_all69577
! Node: acc_wait70472
! Node: acc_wait_all71104
! Node: acc_wait_all_async71681
! Node: acc_wait_async72430
! Node: acc_init73134
! Node: acc_shutdown73777
! Node: acc_on_device74442
! Node: acc_malloc75440
! Node: acc_free75937
! Node: acc_copyin76363
! Node: acc_present_or_copyin77464
! Node: acc_create79074
! Node: acc_present_or_create80220
! Node: acc_copyout81838
! Node: acc_delete82853
! Node: acc_update_device83820
! Node: acc_update_self84924
! Node: acc_map_data86020
! Node: acc_unmap_data86703
! Node: acc_deviceptr87222
! Node: acc_hostptr87791
! Node: acc_is_present88354
! Node: acc_memcpy_to_device89868
! Node: acc_memcpy_from_device90529
! Node: acc_get_current_cuda_device91211
! Node: acc_get_current_cuda_context91806
! Node: acc_get_cuda_stream92398
! Node: acc_set_cuda_stream92952
! Node: OpenACC Environment Variables93483
! Node: ACC_DEVICE_TYPE93942
! Node: ACC_DEVICE_NUM94178
! Node: GCC_ACC_NOTIFY94435
! Node: CUDA Streams Usage94658
! Ref: CUDA Streams Usage-Footnote-196558
! Node: OpenACC Library Interoperability96667
! Ref: OpenACC Library Interoperability-Footnote-1103013
! Ref: OpenACC Library Interoperability-Footnote-2103265
! Node: The libgomp ABI103473
! Node: Implementing MASTER construct104329
! Node: Implementing CRITICAL construct104743
! Node: Implementing ATOMIC construct105482
! Node: Implementing FLUSH construct105963
! Node: Implementing BARRIER construct106234
! Node: Implementing THREADPRIVATE construct106503
! Node: Implementing PRIVATE clause107155
! Node: Implementing FIRSTPRIVATE LASTPRIVATE COPYIN and COPYPRIVATE clauses107736
! Node: Implementing REDUCTION clause109060
! Node: Implementing PARALLEL construct109617
! Node: Implementing FOR construct110874
! Node: Implementing ORDERED construct112872
! Node: Implementing SECTIONS construct113178
! Node: Implementing SINGLE construct113944
! Node: Implementing OpenACC's PARALLEL construct114656
! Node: Reporting Bugs114914
! Node: Copying115276
! Node: GNU Free Documentation License152841
! Node: Funding177983
! Node: Library Index180508
  
  End Tag Table
--- 4387,4556 ----
  [index]
  * Menu:
  
  * Environment Variable:                  OMP_CANCELLATION.      (line 6)
! * Environment Variable <1>:              OMP_DISPLAY_ENV.       (line 6)
! * Environment Variable <2>:              OMP_DEFAULT_DEVICE.    (line 6)
! * Environment Variable <3>:              OMP_DYNAMIC.           (line 6)
! * Environment Variable <4>:              OMP_MAX_ACTIVE_LEVELS. (line 6)
! * Environment Variable <5>:              OMP_MAX_TASK_PRIORITY. (line 6)
! * Environment Variable <6>:              OMP_NESTED.            (line 6)
! * Environment Variable <7>:              OMP_NUM_THREADS.       (line 6)
! * Environment Variable <8>:              OMP_PROC_BIND.         (line 6)
! * Environment Variable <9>:              OMP_PLACES.            (line 6)
! * Environment Variable <10>:             OMP_STACKSIZE.         (line 6)
! * Environment Variable <11>:             OMP_SCHEDULE.          (line 6)
! * Environment Variable <12>:             OMP_THREAD_LIMIT.      (line 6)
! * Environment Variable <13>:             OMP_WAIT_POLICY.       (line 6)
! * Environment Variable <14>:             GOMP_CPU_AFFINITY.     (line 6)
! * Environment Variable <15>:             GOMP_DEBUG.            (line 6)
! * Environment Variable <16>:             GOMP_STACKSIZE.        (line 6)
! * Environment Variable <17>:             GOMP_SPINCOUNT.        (line 6)
! * Environment Variable <18>:             GOMP_RTEMS_THREAD_POOLS.
                                                                  (line 6)
! * FDL, GNU Free Documentation License:   GNU Free Documentation License.
                                                                  (line 6)
  * Implementation specific setting:       OMP_NESTED.            (line 6)
+ * Implementation specific setting <1>:   OMP_NUM_THREADS.       (line 6)
+ * Implementation specific setting <2>:   OMP_SCHEDULE.          (line 6)
+ * Implementation specific setting <3>:   GOMP_STACKSIZE.        (line 6)
+ * Implementation specific setting <4>:   GOMP_SPINCOUNT.        (line 6)
+ * Implementation specific setting <5>:   GOMP_RTEMS_THREAD_POOLS.
+                                                                 (line 6)
  * Introduction:                          Top.                   (line 6)
  
  
  
  Tag Table:
! Node: Top2083
! Node: Enabling OpenMP4489
! Node: Runtime Library Routines5276
! Node: omp_get_active_level8339
! Node: omp_get_ancestor_thread_num9039
! Node: omp_get_cancellation9969
! Node: omp_get_default_device10783
! Node: omp_get_dynamic11459
! Node: omp_get_level12334
! Node: omp_get_max_active_levels12954
! Node: omp_get_max_task_priority13659
! Node: omp_get_max_threads14279
! Node: omp_get_nested15036
! Node: omp_get_num_devices15950
! Node: omp_get_num_procs16471
! Node: omp_get_num_teams17010
! Node: omp_get_num_threads17526
! Node: omp_get_proc_bind18615
! Node: omp_get_schedule19536
! Node: omp_get_team_num20490
! Node: omp_get_team_size20989
! Node: omp_get_thread_limit21949
! Node: omp_get_thread_num22568
! Node: omp_in_parallel23439
! Node: omp_in_final24088
! Node: omp_is_initial_device24762
! Node: omp_set_default_device25455
! Node: omp_set_dynamic26246
! Node: omp_set_max_active_levels27132
! Node: omp_set_nested27909
! Node: omp_set_num_threads28801
! Node: omp_set_schedule29669
! Node: omp_init_lock30750
! Node: omp_set_lock31403
! Node: omp_test_lock32258
! Node: omp_unset_lock33234
! Node: omp_destroy_lock34165
! Node: omp_init_nest_lock34842
! Node: omp_set_nest_lock35577
! Node: omp_test_nest_lock36492
! Node: omp_unset_nest_lock37519
! Node: omp_destroy_nest_lock38534
! Node: omp_get_wtick39285
! Node: omp_get_wtime39877
! Node: Environment Variables40653
! Node: OMP_CANCELLATION42208
! Node: OMP_DISPLAY_ENV42741
! Node: OMP_DEFAULT_DEVICE43444
! Node: OMP_DYNAMIC44224
! Node: OMP_MAX_ACTIVE_LEVELS44820
! Node: OMP_MAX_TASK_PRIORITY45470
! Node: OMP_NESTED46128
! Node: OMP_NUM_THREADS46733
! Node: OMP_PROC_BIND47421
! Node: OMP_PLACES48613
! Node: OMP_STACKSIZE50790
! Node: OMP_SCHEDULE51614
! Node: OMP_THREAD_LIMIT52312
! Node: OMP_WAIT_POLICY52912
! Node: GOMP_CPU_AFFINITY53604
! Node: GOMP_DEBUG55334
! Node: GOMP_STACKSIZE55841
! Node: GOMP_SPINCOUNT56670
! Node: GOMP_RTEMS_THREAD_POOLS57874
! Node: Enabling OpenACC60052
! Node: OpenACC Runtime Library Routines61045
! Node: acc_get_num_devices64839
! Node: acc_set_device_type65565
! Node: acc_get_device_type66329
! Node: acc_set_device_num67044
! Node: acc_get_device_num67828
! Node: acc_async_test68625
! Node: acc_async_test_all69617
! Node: acc_wait70517
! Node: acc_wait_all71152
! Node: acc_wait_all_async71731
! Node: acc_wait_async72483
! Node: acc_init73190
! Node: acc_shutdown73836
! Node: acc_on_device74504
! Node: acc_malloc75508
! Node: acc_free76007
! Node: acc_copyin76434
! Node: acc_present_or_copyin77544
! Node: acc_create79170
! Node: acc_present_or_create80325
! Node: acc_copyout81959
! Node: acc_delete82982
! Node: acc_update_device83957
! Node: acc_update_self85069
! Node: acc_map_data86173
! Node: acc_unmap_data86858
! Node: acc_deviceptr87379
! Node: acc_hostptr87949
! Node: acc_is_present88513
! Node: acc_memcpy_to_device90040
! Node: acc_memcpy_from_device90703
! Node: acc_get_current_cuda_device91387
! Node: acc_get_current_cuda_context91984
! Node: acc_get_cuda_stream92578
! Node: acc_set_cuda_stream93134
! Node: OpenACC Environment Variables93666
! Node: ACC_DEVICE_TYPE94125
! Node: ACC_DEVICE_NUM94361
! Node: GCC_ACC_NOTIFY94618
! Node: CUDA Streams Usage94841
! Ref: CUDA Streams Usage-Footnote-196741
! Node: OpenACC Library Interoperability96850
! Ref: OpenACC Library Interoperability-Footnote-1103206
! Ref: OpenACC Library Interoperability-Footnote-2103458
! Node: The libgomp ABI103666
! Node: Implementing MASTER construct104522
! Node: Implementing CRITICAL construct104936
! Node: Implementing ATOMIC construct105675
! Node: Implementing FLUSH construct106156
! Node: Implementing BARRIER construct106427
! Node: Implementing THREADPRIVATE construct106696
! Node: Implementing PRIVATE clause107349
! Node: Implementing FIRSTPRIVATE LASTPRIVATE COPYIN and COPYPRIVATE clauses107930
! Node: Implementing REDUCTION clause109254
! Node: Implementing PARALLEL construct109811
! Node: Implementing FOR construct111068
! Node: Implementing ORDERED construct113066
! Node: Implementing SECTIONS construct113372
! Node: Implementing SINGLE construct114138
! Node: Implementing OpenACC's PARALLEL construct114850
! Node: Reporting Bugs115108
! Node: Copying115470
! Node: GNU Free Documentation License153017
! Node: Funding178140
! Node: Library Index180666
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/libgomp/omp.h.in gcc-6.5.0/libgomp/omp.h.in
*** gcc-6.4.0/libgomp/omp.h.in	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libgomp/omp.h.in	Mon Jun 25 17:17:50 2018
*************** extern void omp_unset_lock (omp_lock_t *
*** 101,107 ****
  extern int omp_test_lock (omp_lock_t *) __GOMP_NOTHROW;
  
  extern void omp_init_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
! extern void omp_init_nest_lock_with_hint (omp_lock_t *, omp_lock_hint_t)
    __GOMP_NOTHROW;
  extern void omp_destroy_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
  extern void omp_set_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
--- 101,107 ----
  extern int omp_test_lock (omp_lock_t *) __GOMP_NOTHROW;
  
  extern void omp_init_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
! extern void omp_init_nest_lock_with_hint (omp_nest_lock_t *, omp_lock_hint_t)
    __GOMP_NOTHROW;
  extern void omp_destroy_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
  extern void omp_set_nest_lock (omp_nest_lock_t *) __GOMP_NOTHROW;
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c/pr45784.c gcc-6.5.0/libgomp/testsuite/libgomp.c/pr45784.c
*** gcc-6.4.0/libgomp/testsuite/libgomp.c/pr45784.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c/pr45784.c	Fri Sep 15 21:33:08 2017
***************
*** 0 ****
--- 1,41 ----
+ /* PR c/45784 */
+ /* { dg-do run } */
+ 
+ void
+ foo (int n)
+ {
+   char *p, vla[2 * n];
+   int i;
+   #pragma omp parallel for
+   for (p = vla; p < vla + (sizeof (vla) / sizeof (vla[0])); p++)
+     *p = ' ';
+   #pragma omp parallel for
+   for (i = 0; i < 2 * n; i++)
+     if (vla[i] != ' ')
+       __builtin_abort ();
+ }
+ 
+ void
+ bar (int n)
+ {
+   char *p, vla1[n], vla2[n * 2], vla3[n * 3], vla4[n * 4];
+   int i;
+   __builtin_memset (vla4, ' ', n * 4);
+   #pragma omp parallel for
+   for (p = vla4 + sizeof (vla1); p < vla4 + sizeof (vla3) - sizeof (vla2) + sizeof (vla1); p += sizeof (vla4) / sizeof (vla4))
+     p[0] = '!';
+   #pragma omp parallel for
+   for (i = 0; i < n * 4; i++)
+     if (vla4[i] != ((i >= n && i < 2 * n) ? '!' : ' '))
+       __builtin_abort ();
+ }
+ 
+ int
+ main ()
+ {
+   volatile int n;
+   n = 128;
+   foo (n);
+   bar (n);
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c/pr81687-1.c gcc-6.5.0/libgomp/testsuite/libgomp.c/pr81687-1.c
*** gcc-6.4.0/libgomp/testsuite/libgomp.c/pr81687-1.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c/pr81687-1.c	Fri Sep 15 21:37:16 2017
***************
*** 0 ****
--- 1,23 ----
+ /* PR c/81687 */
+ /* { dg-do link } */
+ /* { dg-additional-options "-O2" } */
+ 
+ extern int printf (const char *, ...);
+ 
+ int
+ main ()
+ {
+   #pragma omp parallel
+   {
+    lab1:
+     printf ("lab1=%p\n", (void *)(&&lab1));
+   }
+  lab2:
+   #pragma omp parallel
+   {
+    lab3:
+     printf ("lab2=%p\n", (void *)(&&lab2));
+   }
+   printf ("lab3=%p\n", (void *)(&&lab3));
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c/pr81687-2.c gcc-6.5.0/libgomp/testsuite/libgomp.c/pr81687-2.c
*** gcc-6.4.0/libgomp/testsuite/libgomp.c/pr81687-2.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c/pr81687-2.c	Fri Sep 15 21:37:16 2017
***************
*** 0 ****
--- 1,27 ----
+ /* PR c/81687 */
+ /* { dg-do link } */
+ /* { dg-additional-options "-O2" } */
+ 
+ int
+ main ()
+ {
+   __label__ lab4, lab5, lab6;
+   volatile int l = 0;
+   int m = l;
+   void foo (int x) { if (x == 1) goto lab4; }
+   void bar (int x) { if (x == 2) goto lab5; }
+   void baz (int x) { if (x == 3) goto lab6; }
+   #pragma omp parallel
+   {
+     foo (m + 1);
+    lab4:;
+   }
+   #pragma omp task
+   {
+     bar (m + 2);
+    lab5:;
+   }
+   baz (m + 3);
+  lab6:;
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c/pr81875.c gcc-6.5.0/libgomp/testsuite/libgomp.c/pr81875.c
*** gcc-6.4.0/libgomp/testsuite/libgomp.c/pr81875.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c/pr81875.c	Sun Dec 10 21:37:08 2017
***************
*** 0 ****
--- 1,46 ----
+ /* { dg-do run } */
+ 
+ extern
+ #ifdef __cplusplus
+ "C"
+ #endif
+ void abort (void);
+ 
+ #define N 32ULL
+ int a[N];
+ 
+ const unsigned long long c = 0x7fffffffffffffffULL;
+ 
+ void
+ f2_tpf_static32 (void)
+ {
+   unsigned long long i;
+   #pragma omp for
+   for (i = c + N; i > c; i -= 1ULL)
+     a[i - 1ULL - c] -= 4;
+ }
+ 
+ __attribute__((noinline, noclone)) int
+ test_tpf_static32 (void)
+ {
+   int i, j, k;
+   for (i = 0; i < N; i++)
+     a[i] = i - 25;
+ 
+   f2_tpf_static32 ();
+ 
+   for (i = 0; i < N; i++)
+     if (a[i] != i - 29)
+       return 1;
+ 
+   return 0;
+ }
+ 
+ int
+ main ()
+ {
+   if (test_tpf_static32 ())
+     abort ();
+ 
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c/pr86660.c gcc-6.5.0/libgomp/testsuite/libgomp.c/pr86660.c
*** gcc-6.4.0/libgomp/testsuite/libgomp.c/pr86660.c	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c/pr86660.c	Fri Oct 12 17:28:51 2018
***************
*** 0 ****
--- 1,28 ----
+ /* PR middle-end/86660 */
+ 
+ #pragma omp declare target
+ int v[20];
+ 
+ void
+ foo (void)
+ {
+   if (v[7] != 2)
+     __builtin_abort ();
+   v[7] = 1;
+ }
+ #pragma omp end declare target
+ 
+ int
+ main ()
+ {
+   v[5] = 8;
+   v[7] = 2;
+   #pragma omp target map (always, tofrom: v)
+   {
+     foo ();
+     v[5] = 3;
+   }
+   if (v[7] != 1 || v[5] != 3)
+     __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr45784.C gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr45784.C
*** gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr45784.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr45784.C	Fri Sep 15 21:33:08 2017
***************
*** 0 ****
--- 1,5 ----
+ // PR c/45784
+ // { dg-do run }
+ 
+ #include "../libgomp.c/pr45784.c"
+ 
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr81314.C gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr81314.C
*** gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr81314.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr81314.C	Fri Sep 15 21:42:20 2017
***************
*** 0 ****
--- 1,38 ----
+ // PR c++/81314
+ // { dg-do link }
+ 
+ template <int N>
+ struct S {
+   S () { s = 0; }
+   S (const S &x) { s = x.s; }
+   ~S () {}
+   int s;
+ };
+ 
+ void
+ foo (S<2> &x)
+ {
+   #pragma omp taskloop
+   for (int i = 0; i < 100; ++i)
+     x.s++;
+ }
+ 
+ void
+ bar (S<3> &x)
+ {
+   #pragma omp task
+   x.s++;
+ }
+ 
+ int
+ main ()
+ {
+   S<2> s;
+   S<3> t;
+   #pragma omp parallel
+   #pragma omp master
+   {
+     foo (s);
+     bar (t);
+   }
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr86291.C gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr86291.C
*** gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr86291.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr86291.C	Tue Jun 26 11:33:48 2018
***************
*** 0 ****
--- 1,51 ----
+ // PR c++/86291
+ // { dg-do run }
+ // { dg-additional-options "-std=c++11" }
+ 
+ extern "C" void abort ();
+ 
+ struct I
+ {
+   using size_type = __SIZE_TYPE__;
+   using difference_type = __PTRDIFF_TYPE__;
+   using value_type = int;
+   using reference = int &;
+   using pointer = int *;
+   static I begin () { return I{}; }
+   static I end () { I res; res.pos = res.num; return res; }
+   I &operator++ () { ++pos; return *this; }
+   reference operator* () const { return val; }
+   I &operator+= (size_type diff) { pos += diff; return *this; }
+   friend bool operator< (const I &a, const I &b) { return a.pos < b.pos; }
+   friend difference_type operator- (const I &a, const I &b) { return a.pos - b.pos; }
+   size_type pos = 0;
+   size_type num = 1;
+   mutable int val = 0;
+ };
+ 
+ int c;
+ 
+ int
+ main ()
+ {
+ #pragma omp parallel for collapse(10)
+   for (auto i = I::begin (); i < I::end (); ++i)
+     for (auto j = I::begin (); j < I::end (); ++j)
+       for (auto k = I::begin (); k < I::end (); ++k)
+ 	for (auto l = I::begin (); l < I::end (); ++l)
+ 	  for (auto m = I::begin (); m < I::end (); ++m)
+ 	    for (auto n = I::begin (); n < I::end (); ++n)
+ 	      for (auto o = I::begin (); o < I::end (); ++o)
+ 		for (auto p = I::begin (); p < I::end (); ++p)
+ 		  for (auto q = I::begin (); q < I::end (); ++q)
+ 		    for (auto r = I::begin (); r < I::end (); ++r)
+ 		      {
+ 			if (*i != 0 || *j != 0 || *k != 0 || *l != 0 || *m != 0
+ 			    || *n != 0 || *o != 0 || *p != 0 || *q != 0 || *r != 0)
+ 			  abort ();
+ 			#pragma omp atomic
+ 			  c++;
+ 		      }
+   if (c != 1)
+     abort ();
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr86539.C gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr86539.C
*** gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr86539.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr86539.C	Fri Oct 12 17:29:35 2018
***************
*** 0 ****
--- 1,28 ----
+ // PR middle-end/86539
+ 
+ int a[384];
+ 
+ __attribute__((noinline, noclone)) void
+ foo (int &b, int &c)
+ {
+   #pragma omp taskloop shared (a) collapse(3)
+   for (int i = 0; i < 1; i++)
+     for (int *p = &b; p < &c; p++)
+       for (int j = 0; j < 1; j++)
+ 	if (p < &a[128] || p >= &a[256])
+ 	  __builtin_abort ();
+ 	else
+ 	  p[0]++;
+ }
+ 
+ int
+ main ()
+ {
+   #pragma omp parallel
+   #pragma omp single
+     foo (a[128], a[256]);
+   for (int i = 0; i < 384; i++)
+     if (a[i] != (i >= 128 && i < 256))
+       __builtin_abort ();
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr86542.C gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr86542.C
*** gcc-6.4.0/libgomp/testsuite/libgomp.c++/pr86542.C	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.c++/pr86542.C	Fri Oct 12 17:30:45 2018
***************
*** 0 ****
--- 1,37 ----
+ // PR middle-end/86542
+ 
+ struct S { int s; S (); ~S (); S (const S &); };
+ S s;
+ 
+ S::S ()
+ {
+ }
+ 
+ S::~S ()
+ {
+ }
+ 
+ S::S (const S &x)
+ {
+   s = x.s;
+ }
+ 
+ __attribute__((noinline, noclone)) void
+ foo (int i, int j, int k, S s)
+ {
+   if (i != 0 || j != 0 || k != 0 || s.s != 12)
+     __builtin_abort ();
+ }
+ 
+ int
+ main ()
+ {
+   volatile int inc = 16, jnc = 16, knc = 16;
+   s.s = 12;
+   #pragma omp taskloop collapse (3) firstprivate (s)
+   for (int i = 0; i < 16; i += inc)
+     for (int j = 0; j < 16; j += jnc)
+       for (int k = 0; k < 16; k += knc)
+ 	foo (i, j, k, s);
+   return 0;
+ }
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.fortran/pr81304.f90 gcc-6.5.0/libgomp/testsuite/libgomp.fortran/pr81304.f90
*** gcc-6.4.0/libgomp/testsuite/libgomp.fortran/pr81304.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.fortran/pr81304.f90	Mon Jun 25 16:55:44 2018
***************
*** 0 ****
--- 1,17 ----
+ ! PR fortran/81304
+ ! { dg-do run }
+ ! { dg-options "-Wsurprising" }
+ 
+ program pr81304
+    integer :: i
+    real, dimension(1:3) :: a, b, c
+    a = 128
+    b = 0
+ !$omp parallel do reduction(min: a) reduction(max: b) private (c)	! { dg-bogus "Type specified for intrinsic function" }
+    do i = 1, 16
+      c = (/ i, i - 5, i + 5 /)
+      a = min (a, c)
+      b = max (b, c)
+    end do
+    if (any (a /= (/ 1, -4, 6 /)) .or. any (b /= (/ 16, 11, 21 /))) call abort
+ end
diff -Nrcpad gcc-6.4.0/libgomp/testsuite/libgomp.fortran/pr81841.f90 gcc-6.5.0/libgomp/testsuite/libgomp.fortran/pr81841.f90
*** gcc-6.4.0/libgomp/testsuite/libgomp.fortran/pr81841.f90	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libgomp/testsuite/libgomp.fortran/pr81841.f90	Mon Jun 25 16:52:31 2018
***************
*** 0 ****
--- 1,26 ----
+ ! PR fortran/81841
+ ! { dg-do run }
+ 
+ block data
+   integer :: a
+   real :: b(2)
+   common /c/ a, b
+   !$omp threadprivate (/c/)
+   data a / 32 /
+   data b /2*1./
+ end
+ 
+ program pr81841
+   use omp_lib
+   integer :: e
+   real :: f(2)
+   common /c/ e, f
+   !$omp threadprivate (/c/)
+   !$omp parallel num_threads(8)
+   if ((e /= 32) .or. any(f /= 1.)) call abort
+   e = omp_get_thread_num ()
+   f = e + 19.
+   !$omp barrier
+   if ((e /= omp_get_thread_num ()) .or. any(f /= e + 19.)) call abort
+   !$omp end parallel
+ end
diff -Nrcpad gcc-6.4.0/libiberty/ChangeLog gcc-6.5.0/libiberty/ChangeLog
*** gcc-6.4.0/libiberty/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libiberty/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libitm/ChangeLog gcc-6.5.0/libitm/ChangeLog
*** gcc-6.4.0/libitm/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libitm/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libitm/libitm.info gcc-6.5.0/libitm/libitm.info
*** gcc-6.4.0/libitm/libitm.info	Tue Jul  4 09:46:21 2017
--- gcc-6.5.0/libitm/libitm.info	Fri Oct 26 10:10:32 2018
***************
*** 1,5 ****
! This is libitm.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/libitm/libitm.texi.
  
  Copyright (C) 2011-2016 Free Software Foundation, Inc.
  
--- 1,4 ----
! This is libitm.info, produced by makeinfo version 6.4 from libitm.texi.
  
  Copyright (C) 2011-2016 Free Software Foundation, Inc.
  
*************** any later version published by the Free
*** 9,15 ****
  Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.  A
  copy of the license is included in the section entitled "GNU Free
  Documentation License".
- 
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * libitm: (libitm).                    GNU Transactional Memory Library
--- 8,13 ----
*************** Introduction
*** 33,39 ****
  ************
  
  This manual documents the usage and internals of libitm, the GNU
! Transactional Memory Library. It provides transaction support for
  accesses to a process' memory, enabling easy-to-use synchronization of
  accesses to shared memory by several threads.
  
--- 31,37 ----
  ************
  
  This manual documents the usage and internals of libitm, the GNU
! Transactional Memory Library.  It provides transaction support for
  accesses to a process' memory, enabling easy-to-use synchronization of
  accesses to shared memory by several threads.
  
*************** File: libitm.info,  Node: Enabling libit
*** 55,63 ****
  1 Enabling libitm
  *****************
  
! To activate support for TM in C/C++, the compile-time flag `-fgnu-tm'
! must be specified. This enables TM language-level constructs such as
! transaction statements (e.g., `__transaction_atomic', *note C/C++
  Language Constructs for TM:: for details).
  
  
--- 53,61 ----
  1 Enabling libitm
  *****************
  
! To activate support for TM in C/C++, the compile-time flag '-fgnu-tm'
! must be specified.  This enables TM language-level constructs such as
! transaction statements (e.g., '__transaction_atomic', *note C/C++
  Language Constructs for TM:: for details).
  
  
*************** File: libitm.info,  Node: C/C++ Language
*** 67,81 ****
  **********************************
  
  Transactions are supported in C++ and C in the form of transaction
! statements, transaction expressions, and function transactions. In the
! following example, both `a' and `b' will be read and the difference
! will be written to `c', all atomically and isolated from other
! transactions:
  
       __transaction_atomic { c = a - b; }
  
     Therefore, another thread can use the following code to concurrently
! update `b' without ever causing `c' to hold a negative value (and
  without having to use other synchronization constructs such as locks or
  C++11 atomics):
  
--- 65,78 ----
  **********************************
  
  Transactions are supported in C++ and C in the form of transaction
! statements, transaction expressions, and function transactions.  In the
! following example, both 'a' and 'b' will be read and the difference will
! be written to 'c', all atomically and isolated from other transactions:
  
       __transaction_atomic { c = a - b; }
  
     Therefore, another thread can use the following code to concurrently
! update 'b' without ever causing 'c' to hold a negative value (and
  without having to use other synchronization constructs such as locks or
  C++11 atomics):
  
*************** C++11 atomics):
*** 83,96 ****
  
     GCC follows the Draft Specification of Transactional Language
  Constructs for C++ (v1.1)
! (https://sites.google.com/site/tmforcplusplus/) in its implementation
! of transactions.
  
     The precise semantics of transactions are defined in terms of the
! C++11/C11 memory model (see the specification). Roughly, transactions
  provide synchronization guarantees that are similar to what would be
  guaranteed when using a single global lock as a guard for all
! transactions. Note that like other synchronization constructs in C/C++,
  transactions rely on a data-race-free program (e.g., a nontransactional
  write that is concurrent with a transactional read to the same memory
  location is a data race).
--- 80,93 ----
  
     GCC follows the Draft Specification of Transactional Language
  Constructs for C++ (v1.1)
! (https://sites.google.com/site/tmforcplusplus/) in its implementation of
! transactions.
  
     The precise semantics of transactions are defined in terms of the
! C++11/C11 memory model (see the specification).  Roughly, transactions
  provide synchronization guarantees that are similar to what would be
  guaranteed when using a single global lock as a guard for all
! transactions.  Note that like other synchronization constructs in C/C++,
  transactions rely on a data-race-free program (e.g., a nontransactional
  write that is concurrent with a transactional read to the same memory
  location is a data race).
*************** File: libitm.info,  Node: The libitm ABI
*** 102,112 ****
  ****************
  
  The ABI provided by libitm is basically equal to the Linux variant of
! Intel's current TM ABI specification document (Revision 1.1, May 6
! 2009) but with the differences listed in this chapter. It would be good
! if these changes would eventually be merged into a future version of
! this specification. To ease look-up, the following subsections mirror
! the structure of this specification.
  
  3.1 [No changes] Objectives
  ===========================
--- 99,109 ----
  ****************
  
  The ABI provided by libitm is basically equal to the Linux variant of
! Intel's current TM ABI specification document (Revision 1.1, May 6 2009)
! but with the differences listed in this chapter.  It would be good if
! these changes would eventually be merged into a future version of this
! specification.  To ease look-up, the following subsections mirror the
! structure of this specification.
  
  3.1 [No changes] Objectives
  ===========================
*************** the structure of this specification.
*** 133,146 ****
  ----------------------------
  
  The memory locations accessed with transactional loads and stores and
! the memory locations whose values are logged must not overlap. This
  required separation only extends to the scope of the execution of one
  transaction including all the executions of all nested transactions.
  
     The compiler must be consistent (within the scope of a single
  transaction) about which memory locations are shared and which are not
  shared with other threads (i.e., data must be accessed either
! transactionally or nontransactionally). Otherwise, non-write-through TM
  algorithms would not work.
  
     For memory locations on the stack, this requirement extends to only
--- 130,143 ----
  ----------------------------
  
  The memory locations accessed with transactional loads and stores and
! the memory locations whose values are logged must not overlap.  This
  required separation only extends to the scope of the execution of one
  transaction including all the executions of all nested transactions.
  
     The compiler must be consistent (within the scope of a single
  transaction) about which memory locations are shared and which are not
  shared with other threads (i.e., data must be accessed either
! transactionally or nontransactionally).  Otherwise, non-write-through TM
  algorithms would not work.
  
     For memory locations on the stack, this requirement extends to only
*************** these stack frames' lifetimes will end b
*** 162,168 ****
  3.3.9 Store allocation
  ----------------------
  
! There is no `getTransaction' function.
  
  3.3.10 [No changes] Naming conventions
  --------------------------------------
--- 159,165 ----
  3.3.9 Store allocation
  ----------------------
  
! There is no 'getTransaction' function.
  
  3.3.10 [No changes] Naming conventions
  --------------------------------------
*************** Currently, this is not implemented.
*** 175,182 ****
  3.4 Types and macros list
  =========================
  
! `_ITM_codeProperties' has changed, *note Starting a transaction:
! txn-code-properties.  `_ITM_srcLocation' is not used.
  
  3.5 Function list
  =================
--- 172,179 ----
  3.4 Types and macros list
  =========================
  
! '_ITM_codeProperties' has changed, *note Starting a transaction:
! txn-code-properties.  '_ITM_srcLocation' is not used.
  
  3.5 Function list
  =================
*************** These functions are not part of the ABI.
*** 198,204 ****
  3.5.5 State manipulation functions
  ----------------------------------
  
! There is no `getTransaction' function. Transaction identifiers for
  nested transactions will be ordered but not necessarily sequential
  (i.e., for a nested transaction's identifier IN and its enclosing
  transaction's identifier IE, it is guaranteed that IN >= IE).
--- 195,201 ----
  3.5.5 State manipulation functions
  ----------------------------------
  
! There is no 'getTransaction' function.  Transaction identifiers for
  nested transactions will be ordered but not necessarily sequential
  (i.e., for a nested transaction's identifier IN and its enclosing
  transaction's identifier IE, it is guaranteed that IN >= IE).
*************** transaction's identifier IE, it is guara
*** 212,246 ****
  3.5.7.1 Transaction code properties
  ...................................
  
! The bit `hasNoXMMUpdate' is instead called `hasNoVectorUpdate'.  Iff it
  is set, vector register save/restore is not necessary for any target
  machine.
  
!    The `hasNoFloatUpdate' bit (`0x0010') is new. Iff it is set, floating
! point register save/restore is not necessary for any target machine.
  
!    `undoLogCode' is not supported and a fatal runtime error will be
! raised if this bit is set. It is not properly defined in the ABI why
! barriers other than undo logging are not present; Are they not
! necessary (e.g., a transaction operating purely on thread-local data)
! or have they been omitted by the compiler because it thinks that some
! kind of global synchronization (e.g., serial mode) might perform
! better? The specification suggests that the latter might be the case,
! but the former seems to be more useful.
  
!    The `readOnly' bit (`0x4000') is new. *TODO* Lexical or dynamic
  scope?
  
!    `hasNoRetry' is not supported. If this bit is not set, but
! `hasNoAbort' is set, the library can assume that transaction rollback
  will not be requested.
  
     It would be useful if the absence of externally-triggered rollbacks
  would be reported for the dynamic scope as well, not just for the
! lexical scope (`hasNoAbort'). Without this, a library cannot exploit
  this together with flat nesting.
  
!    `exceptionBlock' is not supported because exception blocks are not
  used.
  
  3.5.7.2 [No changes] Windows exception state
--- 209,244 ----
  3.5.7.1 Transaction code properties
  ...................................
  
! The bit 'hasNoXMMUpdate' is instead called 'hasNoVectorUpdate'.  Iff it
  is set, vector register save/restore is not necessary for any target
  machine.
  
!    The 'hasNoFloatUpdate' bit ('0x0010') is new.  Iff it is set,
! floating point register save/restore is not necessary for any target
! machine.
  
!    'undoLogCode' is not supported and a fatal runtime error will be
! raised if this bit is set.  It is not properly defined in the ABI why
! barriers other than undo logging are not present; Are they not necessary
! (e.g., a transaction operating purely on thread-local data) or have they
! been omitted by the compiler because it thinks that some kind of global
! synchronization (e.g., serial mode) might perform better?  The
! specification suggests that the latter might be the case, but the former
! seems to be more useful.
  
!    The 'readOnly' bit ('0x4000') is new.  *TODO* Lexical or dynamic
  scope?
  
!    'hasNoRetry' is not supported.  If this bit is not set, but
! 'hasNoAbort' is set, the library can assume that transaction rollback
  will not be requested.
  
     It would be useful if the absence of externally-triggered rollbacks
  would be reported for the dynamic scope as well, not just for the
! lexical scope ('hasNoAbort').  Without this, a library cannot exploit
  this together with flat nesting.
  
!    'exceptionBlock' is not supported because exception blocks are not
  used.
  
  3.5.7.2 [No changes] Windows exception state
*************** used.
*** 255,281 ****
  3.5.8 Aborting a transaction
  ----------------------------
  
! `_ITM_rollbackTransaction' is not supported. `_ITM_abortTransaction' is
! supported but the abort reasons `exceptionBlockAbort', `TMConflict',
! and `userRetry' are not supported. There are no exception blocks in
! general, so the related cases also do not have to be considered. To
! encode `__transaction_cancel [[outer]]', compilers must set the new
! `outerAbort' bit (`0x10') additionally to the `userAbort' bit in the
  abort reason.
  
  3.5.9 Committing a transaction
  ------------------------------
  
! The exception handling (EH) scheme is different. The Intel ABI requires
! the `_ITM_tryCommitTransaction' function that will return even when the
  commit failed and will have to be matched with calls to either
! `_ITM_abortTransaction' or `_ITM_commitTransaction'. In contrast, gcc
  relies on transactional wrappers for the functions of the Exception
! Handling ABI and on one additional commit function (shown below). This
  allows the TM to keep track of EH internally and thus it does not have
  to embed the cleanup of EH state into the existing EH code in the
! program.  `_ITM_tryCommitTransaction' is not supported.
! `_ITM_commitTransactionToId' is also not supported because the
  propagation of thrown exceptions will not bypass commits of nested
  transactions.
  
--- 253,279 ----
  3.5.8 Aborting a transaction
  ----------------------------
  
! '_ITM_rollbackTransaction' is not supported.  '_ITM_abortTransaction' is
! supported but the abort reasons 'exceptionBlockAbort', 'TMConflict', and
! 'userRetry' are not supported.  There are no exception blocks in
! general, so the related cases also do not have to be considered.  To
! encode '__transaction_cancel [[outer]]', compilers must set the new
! 'outerAbort' bit ('0x10') additionally to the 'userAbort' bit in the
  abort reason.
  
  3.5.9 Committing a transaction
  ------------------------------
  
! The exception handling (EH) scheme is different.  The Intel ABI requires
! the '_ITM_tryCommitTransaction' function that will return even when the
  commit failed and will have to be matched with calls to either
! '_ITM_abortTransaction' or '_ITM_commitTransaction'.  In contrast, gcc
  relies on transactional wrappers for the functions of the Exception
! Handling ABI and on one additional commit function (shown below).  This
  allows the TM to keep track of EH internally and thus it does not have
  to embed the cleanup of EH state into the existing EH code in the
! program.  '_ITM_tryCommitTransaction' is not supported.
! '_ITM_commitTransactionToId' is also not supported because the
  propagation of thrown exceptions will not bypass commits of nested
  transactions.
  
*************** transactions.
*** 286,333 ****
       void *_ITM_cxa_begin_catch (void *exc_ptr);
       void _ITM_cxa_end_catch (void);
  
!    The EH scheme changed in version 6 of GCC.  Previously, the compiler
! added a call to `_ITM_commitTransactionEH' to commit a transaction if
! an exception could be in flight at this position in the code; `exc_ptr'
! is the address of the current exception and must be non-zero.  Now, the
  compiler must catch all exceptions that are about to be thrown out of a
! transaction and call `_ITM_commitTransactionEH' from the catch clause,
! with `exc_ptr' being zero.
  
     Note that the old EH scheme never worked completely in GCC's
  implementation; libitm currently does not try to be compatible with the
  old scheme.
  
!    The `_ITM_cxa...' functions are transactional wrappers for the
! respective `__cxa...' functions and must be called instead of these in
! transactional code.  `_ITM_cxa_free_exception' is new in GCC 6.
  
     To support this EH scheme, libstdc++ needs to provide one additional
! function (`_cxa_tm_cleanup'), which is used by the TM to clean up the
  exception handling state while rolling back a transaction:
  
       void __cxa_tm_cleanup (void *unthrown_obj, void *cleanup_exc,
                              unsigned int caught_count);
  
!    Since GCC 6, `unthrown_obj' is not used anymore and always null;
! prior to that, `unthrown_obj' is non-null if the program called
! `__cxa_allocate_exception' for this exception but did not yet called
! `__cxa_throw' for it. `cleanup_exc' is non-null if the program is
  currently processing a cleanup along an exception path but has not
! caught this exception yet. `caught_count' is the nesting depth of
! `__cxa_begin_catch' within the transaction (which can be counted by the
! TM using `_ITM_cxa_begin_catch' and `_ITM_cxa_end_catch');
! `__cxa_tm_cleanup' then performs rollback by essentially performing
! `__cxa_end_catch' that many times.
  
  3.5.10 Exception handling support
  ---------------------------------
  
  Currently, there is no support for functionality like
! `__transaction_cancel throw' as described in the C++ TM specification.
  Supporting this should be possible with the EH scheme explained
! previously because via the transactional wrappers for the EH ABI, the
! TM is able to observe and intercept EH.
  
  3.5.11 [No changes] Transition to serial-irrevocable mode
  ---------------------------------------------------------
--- 284,331 ----
       void *_ITM_cxa_begin_catch (void *exc_ptr);
       void _ITM_cxa_end_catch (void);
  
!    The EH scheme changed in version 6 of GCC. Previously, the compiler
! added a call to '_ITM_commitTransactionEH' to commit a transaction if an
! exception could be in flight at this position in the code; 'exc_ptr' is
! the address of the current exception and must be non-zero.  Now, the
  compiler must catch all exceptions that are about to be thrown out of a
! transaction and call '_ITM_commitTransactionEH' from the catch clause,
! with 'exc_ptr' being zero.
  
     Note that the old EH scheme never worked completely in GCC's
  implementation; libitm currently does not try to be compatible with the
  old scheme.
  
!    The '_ITM_cxa...' functions are transactional wrappers for the
! respective '__cxa...' functions and must be called instead of these in
! transactional code.  '_ITM_cxa_free_exception' is new in GCC 6.
  
     To support this EH scheme, libstdc++ needs to provide one additional
! function ('_cxa_tm_cleanup'), which is used by the TM to clean up the
  exception handling state while rolling back a transaction:
  
       void __cxa_tm_cleanup (void *unthrown_obj, void *cleanup_exc,
                              unsigned int caught_count);
  
!    Since GCC 6, 'unthrown_obj' is not used anymore and always null;
! prior to that, 'unthrown_obj' is non-null if the program called
! '__cxa_allocate_exception' for this exception but did not yet called
! '__cxa_throw' for it.  'cleanup_exc' is non-null if the program is
  currently processing a cleanup along an exception path but has not
! caught this exception yet.  'caught_count' is the nesting depth of
! '__cxa_begin_catch' within the transaction (which can be counted by the
! TM using '_ITM_cxa_begin_catch' and '_ITM_cxa_end_catch');
! '__cxa_tm_cleanup' then performs rollback by essentially performing
! '__cxa_end_catch' that many times.
  
  3.5.10 Exception handling support
  ---------------------------------
  
  Currently, there is no support for functionality like
! '__transaction_cancel throw' as described in the C++ TM specification.
  Supporting this should be possible with the EH scheme explained
! previously because via the transactional wrappers for the EH ABI, the TM
! is able to observe and intercept EH.
  
  3.5.11 [No changes] Transition to serial-irrevocable mode
  ---------------------------------------------------------
*************** TM is able to observe and intercept EH.
*** 343,349 ****
  
  If either the source or destination memory region is to be accessed
  nontransactionally, then source and destination regions must not be
! overlapping. The respective `_ITM_memmove' functions are still
  available but a fatal runtime error will be raised if such regions do
  overlap.  To support this functionality, the ABI would have to specify
  how the intersection of the regions has to be accessed (i.e.,
--- 341,347 ----
  
  If either the source or destination memory region is to be accessed
  nontransactionally, then source and destination regions must not be
! overlapping.  The respective '_ITM_memmove' functions are still
  available but a fatal runtime error will be raised if such regions do
  overlap.  To support this functionality, the ABI would have to specify
  how the intersection of the regions has to be accessed (i.e.,
*************** transactionally or nontransactionally).
*** 359,394 ****
  ----------------------------------------------
  
  Commit actions will get executed in the same order in which the
! respective calls to `_ITM_addUserCommitAction' happened. Only
! `_ITM_noTransactionId' is allowed as value for the
! `resumingTransactionId' argument. Commit actions get executed after
  privatization safety has been ensured.
  
!    Undo actions will get executed in reverse order compared to the
! order in which the respective calls to `_ITM_addUserUndoAction'
! happened. The ordering of undo actions w.r.t. the roll-back of other
! actions (e.g., data transfers or memory allocations) is undefined.
  
!    `_ITM_getThreadnum' is not supported currently because its only
  purpose is to provide a thread ID that matches some assumed performance
  tuning output, but this output is not part of the ABI nor further
  defined by it.
  
!    `_ITM_dropReferences' is not supported currently because its
! semantics and the intention behind it is not entirely clear. The
  specification suggests that this function is necessary because of
  certain orderings of data transfer undos and the releasing of memory
! regions (i.e., privatization). However, this ordering is never defined,
! nor is the ordering of dropping references w.r.t. other events.
  
  3.5.18 [New] Transactional indirect calls
  -----------------------------------------
  
  Indirect calls (i.e., calls through a function pointer) within
  transactions should execute the transactional clone of the original
! function (i.e., a clone of the original that has been fully
! instrumented to use the TM runtime), if such a clone is available. The
! runtime provides two functions to register/deregister clone tables:
  
       struct clone_entry
       {
--- 357,392 ----
  ----------------------------------------------
  
  Commit actions will get executed in the same order in which the
! respective calls to '_ITM_addUserCommitAction' happened.  Only
! '_ITM_noTransactionId' is allowed as value for the
! 'resumingTransactionId' argument.  Commit actions get executed after
  privatization safety has been ensured.
  
!    Undo actions will get executed in reverse order compared to the order
! in which the respective calls to '_ITM_addUserUndoAction' happened.  The
! ordering of undo actions w.r.t.  the roll-back of other actions (e.g.,
! data transfers or memory allocations) is undefined.
  
!    '_ITM_getThreadnum' is not supported currently because its only
  purpose is to provide a thread ID that matches some assumed performance
  tuning output, but this output is not part of the ABI nor further
  defined by it.
  
!    '_ITM_dropReferences' is not supported currently because its
! semantics and the intention behind it is not entirely clear.  The
  specification suggests that this function is necessary because of
  certain orderings of data transfer undos and the releasing of memory
! regions (i.e., privatization).  However, this ordering is never defined,
! nor is the ordering of dropping references w.r.t.  other events.
  
  3.5.18 [New] Transactional indirect calls
  -----------------------------------------
  
  Indirect calls (i.e., calls through a function pointer) within
  transactions should execute the transactional clone of the original
! function (i.e., a clone of the original that has been fully instrumented
! to use the TM runtime), if such a clone is available.  The runtime
! provides two functions to register/deregister clone tables:
  
       struct clone_entry
       {
*************** live throughout the life-time of the TM
*** 403,413 ****
  
     *TODO* The intention was always to drop the registration functions
  entirely, and create a new ELF Phdr describing the linker-sorted table.
! Much like what currently happens for `PT_GNU_EH_FRAME'.  This work kept
  getting bogged down in how to represent the N different code generation
  variants.  We clearly needed at least two--SW and HW transactional
! clones--but there was always a suggestion of more variants for
! different TM assumptions/invariants.
  
     The compiler can then use two TM runtime functions to perform
  indirect calls in transactions:
--- 401,411 ----
  
     *TODO* The intention was always to drop the registration functions
  entirely, and create a new ELF Phdr describing the linker-sorted table.
! Much like what currently happens for 'PT_GNU_EH_FRAME'.  This work kept
  getting bogged down in how to represent the N different code generation
  variants.  We clearly needed at least two--SW and HW transactional
! clones--but there was always a suggestion of more variants for different
! TM assumptions/invariants.
  
     The compiler can then use two TM runtime functions to perform
  indirect calls in transactions:
*************** indirect calls in transactions:
*** 415,421 ****
       void *_ITM_getTMCloneSafe (void *function) ITM_REGPARM;
  
     If there is a registered clone for supplied function, both will
! return a pointer to the clone. If not, the first runtime function will
  attempt to switch to serial-irrevocable mode and return the original
  pointer, whereas the second will raise a fatal runtime error.
  
--- 413,419 ----
       void *_ITM_getTMCloneSafe (void *function) ITM_REGPARM;
  
     If there is a registered clone for supplied function, both will
! return a pointer to the clone.  If not, the first runtime function will
  attempt to switch to serial-irrevocable mode and return the original
  pointer, whereas the second will raise a fatal runtime error.
  
*************** pointer, whereas the second will raise a
*** 428,435 ****
              __attribute__((__malloc__)) ITM_PURE;
       void _ITM_free (void *) ITM_PURE;
  
!    These functions are essentially transactional wrappers for `malloc',
! `calloc', and `free'. Within transactions, the compiler should replace
  calls to the original functions with calls to the wrapper functions.
  
     libitm also provides transactional clones of C++ memory management
--- 426,433 ----
              __attribute__((__malloc__)) ITM_PURE;
       void _ITM_free (void *) ITM_PURE;
  
!    These functions are essentially transactional wrappers for 'malloc',
! 'calloc', and 'free'.  Within transactions, the compiler should replace
  calls to the original functions with calls to the wrapper functions.
  
     libitm also provides transactional clones of C++ memory management
*************** libitm for historic reasons but do not n
*** 442,463 ****
  3.7 Sample code
  ===============
  
! The code examples might not be correct w.r.t. the current version of
  the ABI, especially everything related to exception handling.
  
  3.8 [New] Memory model
  ======================
  
! The ABI should define a memory model and the ordering that is
! guaranteed for data transfers and commit/undo actions, or at least
! refer to another memory model that needs to be preserved. Without that,
! the compiler cannot ensure the memory model specified on the level of
! the programming language (e.g., by the C++ TM specification).
  
     For example, if a transactional load is ordered before another
  load/store, then the TM runtime must also ensure this ordering when
! accessing shared state. If not, this might break the kind of
! publication safety used in the C++ TM specification. Likewise, the TM
  runtime must ensure privatization safety.
  
  
--- 440,461 ----
  3.7 Sample code
  ===============
  
! The code examples might not be correct w.r.t.  the current version of
  the ABI, especially everything related to exception handling.
  
  3.8 [New] Memory model
  ======================
  
! The ABI should define a memory model and the ordering that is guaranteed
! for data transfers and commit/undo actions, or at least refer to another
! memory model that needs to be preserved.  Without that, the compiler
! cannot ensure the memory model specified on the level of the programming
! language (e.g., by the C++ TM specification).
  
     For example, if a transactional load is ordered before another
  load/store, then the TM runtime must also ensure this ordering when
! accessing shared state.  If not, this might break the kind of
! publication safety used in the C++ TM specification.  Likewise, the TM
  runtime must ensure privatization safety.
  
  
*************** File: libitm.info,  Node: Internals,  Ne
*** 471,511 ****
  
  libitm supports several ways of synchronizing transactions with each
  other.  These TM methods (or TM algorithms) are implemented in the form
! of subclasses of `abi_dispatch', which provide methods for
! transactional loads and stores as well as callbacks for rollback and
! commit.  All methods that are compatible with each other (i.e., that
! let concurrently running transactions still synchronize correctly even
! if different methods are used) belong to the same TM method group.
! Pointers to TM methods can be obtained using the factory methods
! prefixed with `dispatch_' in `libitm_i.h'. There are two special
! methods, `dispatch_serial' and `dispatch_serialirr', that are
! compatible with all methods because they run transactions completely in
! serial mode.
  
  4.1.1 TM method life cycle
  --------------------------
  
  The state of TM methods does not change after construction, but they do
! alter the state of transactions that use this method. However, because
! per-transaction data gets used by several methods, `gtm_thread' is
  responsible for setting an initial state that is useful for all methods.
! After that, methods are responsible for resetting/clearing this state
! on each rollback or commit (of outermost transactions), so that the
  transaction executed next is not affected by the previous transaction.
  
     There is also global state associated with each method group, which
! is initialized and shut down (`method_group::init()' and `fini()') when
! switching between method groups (see `retry.cc').
  
  4.1.2 Selecting the default method
  ----------------------------------
  
  The default method that libitm uses for freshly started transactions
  (but not necessarily for restarted transactions) can be set via an
! environment variable (`ITM_DEFAULT_METHOD'), whose value should be
! equal to the name of one of the factory methods returning abi_dispatch
! subclasses but without the "dispatch_" prefix (e.g., "serialirr"
! instead of `GTM::dispatch_serialirr()').
  
     Note that this environment variable is only a hint for libitm and
  might not be supported in the future.
--- 469,508 ----
  
  libitm supports several ways of synchronizing transactions with each
  other.  These TM methods (or TM algorithms) are implemented in the form
! of subclasses of 'abi_dispatch', which provide methods for transactional
! loads and stores as well as callbacks for rollback and commit.  All
! methods that are compatible with each other (i.e., that let concurrently
! running transactions still synchronize correctly even if different
! methods are used) belong to the same TM method group.  Pointers to TM
! methods can be obtained using the factory methods prefixed with
! 'dispatch_' in 'libitm_i.h'.  There are two special methods,
! 'dispatch_serial' and 'dispatch_serialirr', that are compatible with all
! methods because they run transactions completely in serial mode.
  
  4.1.1 TM method life cycle
  --------------------------
  
  The state of TM methods does not change after construction, but they do
! alter the state of transactions that use this method.  However, because
! per-transaction data gets used by several methods, 'gtm_thread' is
  responsible for setting an initial state that is useful for all methods.
! After that, methods are responsible for resetting/clearing this state on
! each rollback or commit (of outermost transactions), so that the
  transaction executed next is not affected by the previous transaction.
  
     There is also global state associated with each method group, which
! is initialized and shut down ('method_group::init()' and 'fini()') when
! switching between method groups (see 'retry.cc').
  
  4.1.2 Selecting the default method
  ----------------------------------
  
  The default method that libitm uses for freshly started transactions
  (but not necessarily for restarted transactions) can be set via an
! environment variable ('ITM_DEFAULT_METHOD'), whose value should be equal
! to the name of one of the factory methods returning abi_dispatch
! subclasses but without the "dispatch_" prefix (e.g., "serialirr" instead
! of 'GTM::dispatch_serialirr()').
  
     Note that this environment variable is only a hint for libitm and
  might not be supported in the future.
*************** might not be supported in the future.
*** 513,521 ****
  4.2 Nesting: flat vs. closed
  ============================
  
! We support two different kinds of nesting of transactions. In the case
  of _flat nesting_, the nesting structure is flattened and all nested
! transactions are subsumed by the enclosing transaction. In contrast,
  with _closed nesting_, nested transactions that have not yet committed
  can be rolled back separately from the enclosing transactions; when they
  commit, they are subsumed by the enclosing transaction, and their
--- 510,518 ----
  4.2 Nesting: flat vs. closed
  ============================
  
! We support two different kinds of nesting of transactions.  In the case
  of _flat nesting_, the nesting structure is flattened and all nested
! transactions are subsumed by the enclosing transaction.  In contrast,
  with _closed nesting_, nested transactions that have not yet committed
  can be rolled back separately from the enclosing transactions; when they
  commit, they are subsumed by the enclosing transaction, and their
*************** independently of the enclosing transacti
*** 525,565 ****
  
     Flat nesting is the default nesting mode, but closed nesting is
  supported and used when transactions contain user-controlled aborts
! (`__transaction_cancel' statements). We assume that user-controlled
  aborts are rare in typical code and used mostly in exceptional
! situations.  Thus, it makes more sense to use flat nesting by default
! to avoid the performance overhead of the additional checkpoints
! required for closed nesting. User-controlled aborts will correctly
! abort the innermost enclosing transaction, whereas the whole (i.e.,
! outermost) transaction will be restarted otherwise (e.g., when a
! transaction encounters data conflicts during optimistic execution).
  
  4.3 Locking conventions
  =======================
  
  This section documents the locking scheme and rules for all uses of
! locking in libitm. We have to support serial(-irrevocable) mode, which
! is implemented using a global lock as explained next (called the
! _serial lock_). To simplify the overall design, we use the same lock as
  catch-all locking mechanism for other infrequent tasks such as
! (de)registering clone tables or threads. Besides the serial lock, there
  are _per-method-group locks_ that are managed by specific method groups
  (i.e., groups of similar TM concurrency control algorithms), and
  lock-like constructs for quiescence-based operations such as ensuring
  privatization safety.
  
!    Thus, the actions that participate in the libitm-internal locking
! are either _active transactions_ that do not run in serial mode, _serial
  transactions_ (which (are about to) run in serial mode), and management
  tasks that do not execute within a transaction but have acquired the
  serial mode like a serial transaction would do (e.g., to be able to
! register threads with libitm). Transactions become active as soon as
  they have successfully used the serial lock to announce this globally
! (*note Serial lock implementation: serial-lock-impl.). Likewise,
  transactions become serial transactions as soon as they have acquired
  the exclusive rights provided by the serial lock (i.e., serial mode,
  which also means that there are no other concurrent active or serial
! transactions). Note that active transactions can become serial
  transactions when they enter serial mode during the runtime of the
  transaction.
  
--- 522,562 ----
  
     Flat nesting is the default nesting mode, but closed nesting is
  supported and used when transactions contain user-controlled aborts
! ('__transaction_cancel' statements).  We assume that user-controlled
  aborts are rare in typical code and used mostly in exceptional
! situations.  Thus, it makes more sense to use flat nesting by default to
! avoid the performance overhead of the additional checkpoints required
! for closed nesting.  User-controlled aborts will correctly abort the
! innermost enclosing transaction, whereas the whole (i.e., outermost)
! transaction will be restarted otherwise (e.g., when a transaction
! encounters data conflicts during optimistic execution).
  
  4.3 Locking conventions
  =======================
  
  This section documents the locking scheme and rules for all uses of
! locking in libitm.  We have to support serial(-irrevocable) mode, which
! is implemented using a global lock as explained next (called the _serial
! lock_).  To simplify the overall design, we use the same lock as
  catch-all locking mechanism for other infrequent tasks such as
! (de)registering clone tables or threads.  Besides the serial lock, there
  are _per-method-group locks_ that are managed by specific method groups
  (i.e., groups of similar TM concurrency control algorithms), and
  lock-like constructs for quiescence-based operations such as ensuring
  privatization safety.
  
!    Thus, the actions that participate in the libitm-internal locking are
! either _active transactions_ that do not run in serial mode, _serial
  transactions_ (which (are about to) run in serial mode), and management
  tasks that do not execute within a transaction but have acquired the
  serial mode like a serial transaction would do (e.g., to be able to
! register threads with libitm).  Transactions become active as soon as
  they have successfully used the serial lock to announce this globally
! (*note Serial lock implementation: serial-lock-impl.).  Likewise,
  transactions become serial transactions as soon as they have acquired
  the exclusive rights provided by the serial lock (i.e., serial mode,
  which also means that there are no other concurrent active or serial
! transactions).  Note that active transactions can become serial
  transactions when they enter serial mode during the runtime of the
  transaction.
  
*************** Application data is protected by the ser
*** 570,598 ****
  transaction and no concurrently running active transaction (i.e.,
  non-serial).  Otherwise, application data is protected by the currently
  selected method group, which might use per-method-group locks or other
! mechanisms. Also note that application data that is about to be
  privatized might not be allowed to be accessed by nontransactional code
  until privatization safety has been ensured; the details of this are
  handled by the current method group.
  
     libitm-internal state is either protected by the serial lock or
! accessed through custom concurrent code. The latter applies to the
  public/shared part of a transaction object and most typical
  method-group-specific state.
  
     The former category (protected by the serial lock) includes:
     * The list of active threads that have used transactions.
- 
     * The tables that map functions to their transactional clones.
- 
     * The current selection of which method group to use.
! 
!    * Some method-group-specific data, or invariants of this data. For
       example, resetting a method group to its initial state is handled
       by switching to the same method group, so the serial lock protects
       such resetting as well.
     In general, such state is immutable whenever there exists an active
! (non-serial) transaction. If there is no active transaction, a serial
  transaction (or a thread that is not currently executing a transaction
  but has acquired the serial lock) is allowed to modify this state (but
  must of course be careful to not surprise the current method group's
--- 567,592 ----
  transaction and no concurrently running active transaction (i.e.,
  non-serial).  Otherwise, application data is protected by the currently
  selected method group, which might use per-method-group locks or other
! mechanisms.  Also note that application data that is about to be
  privatized might not be allowed to be accessed by nontransactional code
  until privatization safety has been ensured; the details of this are
  handled by the current method group.
  
     libitm-internal state is either protected by the serial lock or
! accessed through custom concurrent code.  The latter applies to the
  public/shared part of a transaction object and most typical
  method-group-specific state.
  
     The former category (protected by the serial lock) includes:
     * The list of active threads that have used transactions.
     * The tables that map functions to their transactional clones.
     * The current selection of which method group to use.
!    * Some method-group-specific data, or invariants of this data.  For
       example, resetting a method group to its initial state is handled
       by switching to the same method group, so the serial lock protects
       such resetting as well.
     In general, such state is immutable whenever there exists an active
! (non-serial) transaction.  If there is no active transaction, a serial
  transaction (or a thread that is not currently executing a transaction
  but has acquired the serial lock) is allowed to modify this state (but
  must of course be careful to not surprise the current method group's
*************** implementation with such modifications).
*** 602,640 ****
  ----------------------------
  
  To prevent deadlocks, locks acquisition must happen in a globally
! agreed-upon order. Note that this applies to other forms of blocking
  too, but does not necessarily apply to lock acquisitions that do not
! block (e.g., trylock() calls that do not get retried forever). Note
  that serial transactions are never return back to active transactions
! until the transaction has committed.  Likewise, active transactions
! stay active until they have committed.  Per-method-group locks are
! typically also not released before commit.
  
     Lock acquisition / blocking rules:
     * Transactions must become active or serial before they are allowed
       to use method-group-specific locks or blocking (i.e., the serial
!      lock must be acquired before those other locks, either in serial
!      or nonserial mode).
  
!    * Any number of threads that do not currently run active
!      transactions can block while trying to get the serial lock in
!      exclusive mode. Note that active transactions must not block when
!      trying to upgrade to serial mode unless there is no other
!      transaction that is trying that (the latter is ensured by the
!      serial lock implementation.
  
!    * Method groups must prevent deadlocks on their locks. In
       particular, they must also be prepared for another active
       transaction that has acquired method-group-specific locks but is
!      blocked during an attempt to upgrade to being a serial
!      transaction. See below for details.
! 
!    * Serial transactions can acquire method-group-specific locks
!      because there will be no other active nor serial transaction.
  
  
     There is no single rule for per-method-group blocking because this
! depends on when a TM method might acquire locks. If no active
  transaction can upgrade to being a serial transaction after it has
  acquired per-method-group locks (e.g., when those locks are only
  acquired during an attempt to commit), then the TM method does not need
--- 596,633 ----
  ----------------------------
  
  To prevent deadlocks, locks acquisition must happen in a globally
! agreed-upon order.  Note that this applies to other forms of blocking
  too, but does not necessarily apply to lock acquisitions that do not
! block (e.g., trylock() calls that do not get retried forever).  Note
  that serial transactions are never return back to active transactions
! until the transaction has committed.  Likewise, active transactions stay
! active until they have committed.  Per-method-group locks are typically
! also not released before commit.
  
     Lock acquisition / blocking rules:
+ 
     * Transactions must become active or serial before they are allowed
       to use method-group-specific locks or blocking (i.e., the serial
!      lock must be acquired before those other locks, either in serial or
!      nonserial mode).
  
!    * Any number of threads that do not currently run active transactions
!      can block while trying to get the serial lock in exclusive mode.
!      Note that active transactions must not block when trying to upgrade
!      to serial mode unless there is no other transaction that is trying
!      that (the latter is ensured by the serial lock implementation.
  
!    * Method groups must prevent deadlocks on their locks.  In
       particular, they must also be prepared for another active
       transaction that has acquired method-group-specific locks but is
!      blocked during an attempt to upgrade to being a serial transaction.
!      See below for details.
  
+    * Serial transactions can acquire method-group-specific locks because
+      there will be no other active nor serial transaction.
  
     There is no single rule for per-method-group blocking because this
! depends on when a TM method might acquire locks.  If no active
  transaction can upgrade to being a serial transaction after it has
  acquired per-method-group locks (e.g., when those locks are only
  acquired during an attempt to commit), then the TM method does not need
*************** per-method-group locks, then TM methods
*** 647,691 ****
       transactions to finish (*note Serial lock implementation:
       serial-lock-impl. for details), we have to wake up all active
       transactions waiting on the upgrader's per-method-group locks.
- 
     * Active transactions blocking on per-method-group locks need to
       check the serial lock and abort if there is a pending serial
       transaction.
- 
     * Lost wake-ups have to be prevented (e.g., by changing a bit in each
       per-method-group lock before doing the wake-up, and only blocking
       on this lock using a futex if this bit is not group).
  
!    *TODO*: Can reuse serial lock for gl-*? And if we can, does it make
! sense to introduce further complexity in the serial lock? For gl-*, we
  can really only avoid an abort if we do -wb and -vbv.
  
  4.3.3 Serial lock implementation
  --------------------------------
  
  The serial lock implementation is optimized towards assuming that serial
! transactions are infrequent and not the common case. However, the
  performance of entering serial mode can matter because when only few
  transactions are run concurrently or if there are few threads, then it
  can be efficient to run transactions serially.
  
     The serial lock is similar to a multi-reader-single-writer lock in
  that there can be several active transactions but only one serial
! transaction. However, we do want to avoid contention (in the lock
  implementation) between active transactions, so we split up the reader
  side of the lock into per-transaction flags that are true iff the
! transaction is active. The exclusive writer side remains a shared
  single flag, which is acquired using a CAS, for example.  On the
  fast-path, the serial lock then works similar to Dekker's algorithm but
  with several reader flags that a serial transaction would have to check.
  A serial transaction thus requires a list of all threads with
  potentially active transactions; we can use the serial lock itself to
! protect this list (i.e., only threads that have acquired the serial
! lock can modify this list).
  
     We want starvation-freedom for the serial lock to allow for using it
  to ensure progress for potentially starved transactions (*note Progress
! Guarantees: progress-guarantees. for details). However, this is
  currently not enforced by the implementation of the serial lock.
  
     Here is pseudo-code for the read/write fast paths of acquiring the
--- 640,682 ----
       transactions to finish (*note Serial lock implementation:
       serial-lock-impl. for details), we have to wake up all active
       transactions waiting on the upgrader's per-method-group locks.
     * Active transactions blocking on per-method-group locks need to
       check the serial lock and abort if there is a pending serial
       transaction.
     * Lost wake-ups have to be prevented (e.g., by changing a bit in each
       per-method-group lock before doing the wake-up, and only blocking
       on this lock using a futex if this bit is not group).
  
!    *TODO*: Can reuse serial lock for gl-*?  And if we can, does it make
! sense to introduce further complexity in the serial lock?  For gl-*, we
  can really only avoid an abort if we do -wb and -vbv.
  
  4.3.3 Serial lock implementation
  --------------------------------
  
  The serial lock implementation is optimized towards assuming that serial
! transactions are infrequent and not the common case.  However, the
  performance of entering serial mode can matter because when only few
  transactions are run concurrently or if there are few threads, then it
  can be efficient to run transactions serially.
  
     The serial lock is similar to a multi-reader-single-writer lock in
  that there can be several active transactions but only one serial
! transaction.  However, we do want to avoid contention (in the lock
  implementation) between active transactions, so we split up the reader
  side of the lock into per-transaction flags that are true iff the
! transaction is active.  The exclusive writer side remains a shared
  single flag, which is acquired using a CAS, for example.  On the
  fast-path, the serial lock then works similar to Dekker's algorithm but
  with several reader flags that a serial transaction would have to check.
  A serial transaction thus requires a list of all threads with
  potentially active transactions; we can use the serial lock itself to
! protect this list (i.e., only threads that have acquired the serial lock
! can modify this list).
  
     We want starvation-freedom for the serial lock to allow for using it
  to ensure progress for potentially starved transactions (*note Progress
! Guarantees: progress-guarantees. for details).  However, this is
  currently not enforced by the implementation of the serial lock.
  
     Here is pseudo-code for the read/write fast paths of acquiring the
*************** serial lock (read-to-write upgrade is si
*** 709,765 ****
       if (need_blocking) goto slowpath;
  
     Releasing a lock in this spin-lock version then just consists of
! resetting `tx->shared_state' to inactive or clearing
! `serial_lock.exclusive'.
  
     However, we can't rely on a pure spinlock because we need to get the
! OS involved at some time (e.g., when there are more threads than CPUs
! to run on).  Therefore, the real implementation falls back to a
! blocking slow path, either based on pthread mutexes or Linux futexes.
  
  4.3.4 Reentrancy
  ----------------
  
  libitm has to consider the following cases of reentrancy:
     * Transaction calls unsafe code that starts a new transaction: The
!      outer transaction will become a serial transaction before
!      executing unsafe code.  Therefore, nesting within serial
!      transactions must work, even if the nested transaction is called
!      from within uninstrumented code.
  
     * Transaction calls either a transactional wrapper or safe code,
       which in turn starts a new transaction: It is not yet defined in
!      the specification whether this is allowed. Thus, it is undefined
       whether libitm supports this.
  
     * Code that starts new transactions might be called from within any
       part of libitm: This kind of reentrancy would likely be rather
!      complex and can probably be avoided. Therefore, it is not
       supported.
  
- 
  4.3.5 Privatization safety
  --------------------------
  
  Privatization safety is ensured by libitm using a quiescence-based
  approach.  Basically, a privatizing transaction waits until all
! concurrent active transactions will either have finished (are not
! active anymore) or operate on a sufficiently recent snapshot to not
! access the privatized data anymore. This happens after the privatizing
! transaction has stopped being an active transaction, so waiting for
! quiescence does not contribute to deadlocks.
  
     In method groups that need to ensure publication safety explicitly,
  active transactions maintain a flag or timestamp in the public/shared
! part of the transaction descriptor. Before blocking, privatizers need
  to let the other transactions know that they should wake up the
  privatizer.
  
!    *TODO* Ho to implement the waiters? Should those flags be
! per-transaction or at a central place? We want to avoid one wake/wait
  call per active transactions, so we might want to use either a tree or
  combining to reduce the syscall overhead, or rather spin for a long
! amount of time instead of doing blocking. Also, it would be good if
  only the last transaction that the privatizer waits for would do the
  wake-up.
  
--- 700,756 ----
       if (need_blocking) goto slowpath;
  
     Releasing a lock in this spin-lock version then just consists of
! resetting 'tx->shared_state' to inactive or clearing
! 'serial_lock.exclusive'.
  
     However, we can't rely on a pure spinlock because we need to get the
! OS involved at some time (e.g., when there are more threads than CPUs to
! run on).  Therefore, the real implementation falls back to a blocking
! slow path, either based on pthread mutexes or Linux futexes.
  
  4.3.4 Reentrancy
  ----------------
  
  libitm has to consider the following cases of reentrancy:
+ 
     * Transaction calls unsafe code that starts a new transaction: The
!      outer transaction will become a serial transaction before executing
!      unsafe code.  Therefore, nesting within serial transactions must
!      work, even if the nested transaction is called from within
!      uninstrumented code.
  
     * Transaction calls either a transactional wrapper or safe code,
       which in turn starts a new transaction: It is not yet defined in
!      the specification whether this is allowed.  Thus, it is undefined
       whether libitm supports this.
  
     * Code that starts new transactions might be called from within any
       part of libitm: This kind of reentrancy would likely be rather
!      complex and can probably be avoided.  Therefore, it is not
       supported.
  
  4.3.5 Privatization safety
  --------------------------
  
  Privatization safety is ensured by libitm using a quiescence-based
  approach.  Basically, a privatizing transaction waits until all
! concurrent active transactions will either have finished (are not active
! anymore) or operate on a sufficiently recent snapshot to not access the
! privatized data anymore.  This happens after the privatizing transaction
! has stopped being an active transaction, so waiting for quiescence does
! not contribute to deadlocks.
  
     In method groups that need to ensure publication safety explicitly,
  active transactions maintain a flag or timestamp in the public/shared
! part of the transaction descriptor.  Before blocking, privatizers need
  to let the other transactions know that they should wake up the
  privatizer.
  
!    *TODO* Ho to implement the waiters?  Should those flags be
! per-transaction or at a central place?  We want to avoid one wake/wait
  call per active transactions, so we might want to use either a tree or
  combining to reduce the syscall overhead, or rather spin for a long
! amount of time instead of doing blocking.  Also, it would be good if
  only the last transaction that the privatizer waits for would do the
  wake-up.
  
*************** wake-up.
*** 767,802 ****
  -------------------------
  
  Transactions that do not make progress when using the current TM method
! will eventually try to execute in serial mode. Thus, the serial lock's
  progress guarantees determine the progress guarantees of the whole TM.
! Obviously, we at least need deadlock-freedom for the serial lock, but
! it would also be good to provide starvation-freedom (informally, all
  threads will finish executing a transaction eventually iff they get
  enough cycles).
  
     However, the scheduling of transactions (e.g., thread scheduling by
  the OS) also affects the handling of progress guarantees by the TM.
  First, the TM can only guarantee deadlock-freedom if threads do not get
! stopped. Likewise, low-priority threads can starve if they do not get
  scheduled when other high-priority threads get those cycles instead.
  
!    If all threads get scheduled eventually, correct lock
! implementations will provide deadlock-freedom, but might not provide
! starvation-freedom. We can either enforce the latter in the TM's lock
! implementation, or assume that the scheduling is sufficiently random to
! yield a probabilistic guarantee that no thread will starve (because
! eventually, a transaction will encounter a scheduling that will allow
! it to run). This can indeed work well in practice but is not
! necessarily guaranteed to work (e.g., simple spin locks can be pretty
! efficient).
  
!    Because enforcing stronger progress guarantees in the TM has a
! higher runtime overhead, we focus on deadlock-freedom right now and
! assume that the threads will get scheduled eventually by the OS (but
! don't consider threads with different priorities). We should support
! starvation-freedom for serial transactions in the future. Everything
! beyond that is highly related to proper contention management across
! all of the TM (including with TM method to choose), and is future work.
  
     *TODO* Handling thread priorities: We want to avoid priority
  inversion but it's unclear how often that actually matters in practice.
--- 758,792 ----
  -------------------------
  
  Transactions that do not make progress when using the current TM method
! will eventually try to execute in serial mode.  Thus, the serial lock's
  progress guarantees determine the progress guarantees of the whole TM.
! Obviously, we at least need deadlock-freedom for the serial lock, but it
! would also be good to provide starvation-freedom (informally, all
  threads will finish executing a transaction eventually iff they get
  enough cycles).
  
     However, the scheduling of transactions (e.g., thread scheduling by
  the OS) also affects the handling of progress guarantees by the TM.
  First, the TM can only guarantee deadlock-freedom if threads do not get
! stopped.  Likewise, low-priority threads can starve if they do not get
  scheduled when other high-priority threads get those cycles instead.
  
!    If all threads get scheduled eventually, correct lock implementations
! will provide deadlock-freedom, but might not provide starvation-freedom.
! We can either enforce the latter in the TM's lock implementation, or
! assume that the scheduling is sufficiently random to yield a
! probabilistic guarantee that no thread will starve (because eventually,
! a transaction will encounter a scheduling that will allow it to run).
! This can indeed work well in practice but is not necessarily guaranteed
! to work (e.g., simple spin locks can be pretty efficient).
  
!    Because enforcing stronger progress guarantees in the TM has a higher
! runtime overhead, we focus on deadlock-freedom right now and assume that
! the threads will get scheduled eventually by the OS (but don't consider
! threads with different priorities).  We should support
! starvation-freedom for serial transactions in the future.  Everything
! beyond that is highly related to proper contention management across all
! of the TM (including with TM method to choose), and is future work.
  
     *TODO* Handling thread priorities: We want to avoid priority
  inversion but it's unclear how often that actually matters in practice.
*************** GNU Free Documentation License
*** 815,821 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 805,811 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 840,860 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 830,850 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 872,883 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 862,873 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 888,914 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 878,904 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 946,953 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 936,943 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 961,972 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 951,961 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 974,1013 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 963,1001 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 1037,1067 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 1025,1054 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 1074,1084 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 1061,1071 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 1087,1101 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 1074,1088 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 1105,1112 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 1092,1099 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 1133,1152 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 1120,1139 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 1191,1198 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 1178,1185 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 1204,1236 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 1191,1223 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 1260,1266 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 1247,1252 ----
*************** notices just after the title page:
*** 1277,1283 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 1263,1269 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 1288,1296 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: libitm.info,  Node: Library Index,  Prev: GNU Free Documentation License,  Up: Top
--- 1274,1282 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: libitm.info,  Node: Library Index,  Prev: GNU Free Documentation License,  Up: Top
*************** Library Index
*** 1308,1322 ****
  
  
  Tag Table:
! Node: Top1187
! Node: Enabling libitm2090
! Node: C/C++ Language Constructs for TM2484
! Node: The libitm ABI3964
! Ref: txn-code-properties7757
! Node: Internals18811
! Ref: serial-lock-impl28836
! Ref: progress-guarantees33586
! Node: GNU Free Documentation License35860
! Node: Library Index61009
  
  End Tag Table
--- 1294,1308 ----
  
  
  Tag Table:
! Node: Top1141
! Node: Enabling libitm2045
! Node: C/C++ Language Constructs for TM2440
! Node: The libitm ABI3923
! Ref: txn-code-properties7721
! Node: Internals18803
! Ref: serial-lock-impl28841
! Ref: progress-guarantees33602
! Node: GNU Free Documentation License35880
! Node: Library Index61010
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/libjava/ChangeLog gcc-6.5.0/libjava/ChangeLog
*** gcc-6.4.0/libjava/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libjava/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,14 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2017-09-07  Matthias Klose  <doko@ubuntu.com>
+ 
+ 	* include/x86_64-signal.h (HANDLE_DIVIDE_OVERFLOW): Replace
+ 	'struct ucontext' with ucontext_t.
+ 	* include/i386-signal.h (HANDLE_DIVIDE_OVERFLOW): Likewise.
+ 	* include/s390-signal.h (HANDLE_DIVIDE_OVERFLOW): Likewise.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libjava/classpath/ChangeLog gcc-6.5.0/libjava/classpath/ChangeLog
*** gcc-6.4.0/libjava/classpath/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libjava/classpath/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/cp-tools.info gcc-6.5.0/libjava/classpath/doc/cp-tools.info
*** gcc-6.4.0/libjava/classpath/doc/cp-tools.info	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/cp-tools.info	Fri Oct 26 10:11:18 2018
***************
*** 1,8 ****
! This is cp-tools.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/libjava/classpath/doc/cp-tools.texinfo.
  
! This file documents the Tools included in a standard distribution of
! the GNU Classpath project deliverables.
  
     Copyright (C) 2006, 2007 Free Software Foundation, Inc.
  
--- 1,8 ----
! This is cp-tools.info, produced by makeinfo version 6.4 from
! cp-tools.texinfo.
  
! This file documents the Tools included in a standard distribution of the
! GNU Classpath project deliverables.
  
     Copyright (C) 2006, 2007 Free Software Foundation, Inc.
  
*************** the GNU Classpath project deliverables.
*** 17,25 ****
  
       Permission is granted to copy and distribute translations of this
       manual into another language, under the above conditions for
!      modified versions, except that this permission notice may be
!      stated in a translation approved by the Free Software Foundation.
! 
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * Classpath Tools: (cp-tools).  GNU Classpath Tools Guide
--- 17,24 ----
  
       Permission is granted to copy and distribute translations of this
       manual into another language, under the above conditions for
!      modified versions, except that this permission notice may be stated
!      in a translation approved by the Free Software Foundation.
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * Classpath Tools: (cp-tools).  GNU Classpath Tools Guide
*************** behavior, to their counter-parts found i
*** 45,51 ****
  * Other Tools::                Other tools in classpath
  * I18N Issues::                How to add support for non-English languages
  
!  --- The Detailed Node Listing ---
  
  Applet Tools
  
--- 44,50 ----
  * Other Tools::                Other tools in classpath
  * I18N Issues::                How to add support for non-English languages
  
!  -- The Detailed Node Listing --
  
  Applet Tools
  
*************** I18N Issues
*** 168,173 ****
--- 167,173 ----
  * Language Resources::         Where resources are located
  * Message Formats::            How messages are internationalized
  
+ 
  
  File: cp-tools.info,  Node: Applet Tools,  Next: Security Tools,  Prev: Top,  Up: Top
  
*************** report it at classpath-bugs
*** 192,303 ****
  
  File: cp-tools.info,  Node: appletviewer Tool,  Next: gcjwebplugin,  Prev: Applet Tools,  Up: Applet Tools
  
! 1.1 The `appletviewer' Tool
  ===========================
  
  SYNOPSIS
  
     appletviewer [OPTION]... URL...
- appletviewer [OPTION]... `-code' CODE
- appletviewer [OPTION]... `-plugin' INPUT,OUTPUT
  
!    DESCRIPTION The `appletviewer' tool loads and runs an applet.
  
     Use the first form to test applets specified by tag.  The URL should
! resolve to an HTML document from which the `appletviewer' will extract
  applet tags.  The APPLET, EMBED and OBJECT tags are supported.  If a
  given document contains multiple applet tags, all the applets will be
  loaded, with each applet appearing in its own window.  Likewise, when
  multiple URLs are specified, each applet tag instance is given its own
  window.  If a given document contains no recognized tags the
! `appletviewer' does nothing.
  
       appletviewer http://www.gnu.org/software/classpath/
  
     Use the second form to test an applet in development.  This form
  allows applet tag attributes to be supplied on the command line.  Only
! one applet may be specified using the `-code' option.  The `-code'
  option overrides the URL form - any URLs specified will be ignored.
  
       appletviewer -code Test.class -param datafile,data.txt
  
!    `gcjwebplugin' uses the third form to communicate with the
! `appletviewer' through named pipes.
  
     URL OPTIONS
! `-debug'
       This option is not yet implemented but is provided for
       compatibility.
  
! `-encoding CHARSET'
       Use this option to specify an alternate character encoding for the
       specified HTML page.
  
- 
     APPLET TAG OPTIONS
! `-code CODE'
!      Use the `-code' option to specify the value of the applet tag CODE
       attribute.
  
! `-codebase CODEBASE'
!      Use the `-codebase' option to specify the value of the applet tag
       CODEBASE attribute.
  
! `-archive ARCHIVE'
!      Use the `-archive' option to specify the value of the applet tag
       ARCHIVE attribute.
  
! `-width WIDTH'
!      Use the `-width' option to specify the value of the applet tag
       WIDTH attribute.
  
! `-height HEIGHT'
!      Use the `-height' option to specify the value of the applet tag
       HEIGHT attribute.
  
! `-param NAME,VALUE'
!      Use the `-param' option to specify values for the NAME and VALUE
       attributes of an applet PARAM tag.
  
- 
     PLUGIN OPTION
! `-plugin INPUT,OUTPUT'
!      `gcjwebplugin' uses the `-plugin' option to specify the named pipe
!      the `appletviewer' should use for receiving commands (INPUT) and
!      the one it should use for sending commands to `gcjwebplugin'
       (OUTPUT).
  
- 
     DEBUGGING OPTION
! `-verbose'
!      Use the `-verbose' option to have the `appletviewer' print
       debugging messages.
  
- 
     STANDARD OPTIONS
  
! `-help'
!      Use the `-help' option to have the `appletviewer' print a usage
       message, then exit.
  
! `-version'
!      Use the `-version' option to have the `appletviewer' print its
       version, then exit.
  
! `-JOPTION'
!      Use the `-J' option to pass OPTION to the virtual machine that
!      will run the `appletviewer'.  Unlike other options, there must not
!      be a space between the `-J' and OPTION.
! 
  
  
  File: cp-tools.info,  Node: gcjwebplugin,  Prev: appletviewer Tool,  Up: Applet Tools
  
! 1.2 The `gcjwebplugin' Tool
  ===========================
  
! `gcjwebplugin' is a plugin that adds applet support to web browsers.
! Currently `gcjwebplugin' only supports Mozilla-based browsers (e.g.,
  Firefox, Galeon, Mozilla).
  
  
--- 192,300 ----
  
  File: cp-tools.info,  Node: appletviewer Tool,  Next: gcjwebplugin,  Prev: Applet Tools,  Up: Applet Tools
  
! 1.1 The 'appletviewer' Tool
  ===========================
  
  SYNOPSIS
  
     appletviewer [OPTION]... URL...
  
!    appletviewer [OPTION]... '-code' CODE
! 
!    appletviewer [OPTION]... '-plugin' INPUT,OUTPUT
! 
!    DESCRIPTION The 'appletviewer' tool loads and runs an applet.
  
     Use the first form to test applets specified by tag.  The URL should
! resolve to an HTML document from which the 'appletviewer' will extract
  applet tags.  The APPLET, EMBED and OBJECT tags are supported.  If a
  given document contains multiple applet tags, all the applets will be
  loaded, with each applet appearing in its own window.  Likewise, when
  multiple URLs are specified, each applet tag instance is given its own
  window.  If a given document contains no recognized tags the
! 'appletviewer' does nothing.
  
       appletviewer http://www.gnu.org/software/classpath/
  
     Use the second form to test an applet in development.  This form
  allows applet tag attributes to be supplied on the command line.  Only
! one applet may be specified using the '-code' option.  The '-code'
  option overrides the URL form - any URLs specified will be ignored.
  
       appletviewer -code Test.class -param datafile,data.txt
  
!    'gcjwebplugin' uses the third form to communicate with the
! 'appletviewer' through named pipes.
  
     URL OPTIONS
! '-debug'
       This option is not yet implemented but is provided for
       compatibility.
  
! '-encoding CHARSET'
       Use this option to specify an alternate character encoding for the
       specified HTML page.
  
     APPLET TAG OPTIONS
! '-code CODE'
!      Use the '-code' option to specify the value of the applet tag CODE
       attribute.
  
! '-codebase CODEBASE'
!      Use the '-codebase' option to specify the value of the applet tag
       CODEBASE attribute.
  
! '-archive ARCHIVE'
!      Use the '-archive' option to specify the value of the applet tag
       ARCHIVE attribute.
  
! '-width WIDTH'
!      Use the '-width' option to specify the value of the applet tag
       WIDTH attribute.
  
! '-height HEIGHT'
!      Use the '-height' option to specify the value of the applet tag
       HEIGHT attribute.
  
! '-param NAME,VALUE'
!      Use the '-param' option to specify values for the NAME and VALUE
       attributes of an applet PARAM tag.
  
     PLUGIN OPTION
! '-plugin INPUT,OUTPUT'
!      'gcjwebplugin' uses the '-plugin' option to specify the named pipe
!      the 'appletviewer' should use for receiving commands (INPUT) and
!      the one it should use for sending commands to 'gcjwebplugin'
       (OUTPUT).
  
     DEBUGGING OPTION
! '-verbose'
!      Use the '-verbose' option to have the 'appletviewer' print
       debugging messages.
  
     STANDARD OPTIONS
  
! '-help'
!      Use the '-help' option to have the 'appletviewer' print a usage
       message, then exit.
  
! '-version'
!      Use the '-version' option to have the 'appletviewer' print its
       version, then exit.
  
! '-JOPTION'
!      Use the '-J' option to pass OPTION to the virtual machine that will
!      run the 'appletviewer'.  Unlike other options, there must not be a
!      space between the '-J' and OPTION.
  
  
  File: cp-tools.info,  Node: gcjwebplugin,  Prev: appletviewer Tool,  Up: Applet Tools
  
! 1.2 The 'gcjwebplugin' Tool
  ===========================
  
! 'gcjwebplugin' is a plugin that adds applet support to web browsers.
! Currently 'gcjwebplugin' only supports Mozilla-based browsers (e.g.,
  Firefox, Galeon, Mozilla).
  
  
*************** File: cp-tools.info,  Node: Security Too
*** 306,317 ****
  2 Security Tools
  ****************
  
! Two Security Tools are available with GNU Classpath: `jarsigner' and
! `keytool'.
  
     To avoid conflicts with other implementations, the jarsigner
! executable is called `gjarsigner' and the keytool executable is called
! `gkeytool'.
  
  * Menu:
  
--- 303,314 ----
  2 Security Tools
  ****************
  
! Two Security Tools are available with GNU Classpath: 'jarsigner' and
! 'keytool'.
  
     To avoid conflicts with other implementations, the jarsigner
! executable is called 'gjarsigner' and the keytool executable is called
! 'gkeytool'.
  
  * Menu:
  
*************** report it at classpath-bugs
*** 325,339 ****
  
  File: cp-tools.info,  Node: jarsigner Tool,  Next: keytool Tool,  Prev: Security Tools,  Up: Security Tools
  
! 2.1 The `jarsigner' Tool
  ========================
  
! The `jarsigner' tool is invoked from the command line, in one of two
  forms, as follows:
  
       jarsigner [OPTION]... FILE ALIAS
  
!      jarsigner `-verify' [OPTION]... FILE
  
     When the first form is used, the tool signs the designated JAR file.
  The second form, on the other hand, is used to verify a previously
--- 322,336 ----
  
  File: cp-tools.info,  Node: jarsigner Tool,  Next: keytool Tool,  Prev: Security Tools,  Up: Security Tools
  
! 2.1 The 'jarsigner' Tool
  ========================
  
! The 'jarsigner' tool is invoked from the command line, in one of two
  forms, as follows:
  
       jarsigner [OPTION]... FILE ALIAS
  
!      jarsigner -verify [OPTION]... FILE
  
     When the first form is used, the tool signs the designated JAR file.
  The second form, on the other hand, is used to verify a previously
*************** signed JAR file.
*** 343,349 ****
  form is used, or to verify if the second syntax form is used instead.
  
     ALIAS must be a known Alias of a Key Entry in the designated Key
! Store. The private key material associated with this Alias is then used
  for signing the designated .JAR file.
  
  * Menu:
--- 340,346 ----
  form is used, or to verify if the second syntax form is used instead.
  
     ALIAS must be a known Alias of a Key Entry in the designated Key
! Store.  The private key material associated with this Alias is then used
  for signing the designated .JAR file.
  
  * Menu:
*************** File: cp-tools.info,  Node: Common jarsi
*** 361,393 ****
  The following options may be used when the tool is used for either
  signing, or verifying, a .JAR file.
  
! `-verbose'
       Use this option to force the tool to generate more verbose
       messages, during its processing.
  
! `-internalsf'
       When present, the tool will include -which otherwise it does not-
!      the `.SF' file in the `.DSA' generated file.
  
! `-sectionsonly'
!      When present, the tool will include in the `.SF' generated file
       -which otherwise it does not- a header containing a hash of the
       whole manifest file.  When that header is included, the tool can
       quickly check, during verification, if the hash (in the header)
       matches or not the manifest file.
  
! `-provider PROVIDER_CLASS_NAME'
       A fully qualified class name of a Security Provider to add to the
       current list of Security Providers already installed in the JVM
!      in-use. If a provider class is specified with this option, and was
       successfully added to the runtime -i.e. it was not already
       installed- then the tool will attempt to remove this Security
       Provider before exiting.
  
! `-help'
       Prints a help text similar to this one.
  
- 
  
  File: cp-tools.info,  Node: Signing Options,  Next: Verification Options,  Prev: Common jarsigner Options,  Up: jarsigner Tool
  
--- 358,389 ----
  The following options may be used when the tool is used for either
  signing, or verifying, a .JAR file.
  
! '-verbose'
       Use this option to force the tool to generate more verbose
       messages, during its processing.
  
! '-internalsf'
       When present, the tool will include -which otherwise it does not-
!      the '.SF' file in the '.DSA' generated file.
  
! '-sectionsonly'
!      When present, the tool will include in the '.SF' generated file
       -which otherwise it does not- a header containing a hash of the
       whole manifest file.  When that header is included, the tool can
       quickly check, during verification, if the hash (in the header)
       matches or not the manifest file.
  
! '-provider PROVIDER_CLASS_NAME'
       A fully qualified class name of a Security Provider to add to the
       current list of Security Providers already installed in the JVM
!      in-use.  If a provider class is specified with this option, and was
       successfully added to the runtime -i.e. it was not already
       installed- then the tool will attempt to remove this Security
       Provider before exiting.
  
! '-help'
       Prints a help text similar to this one.
  
  
  File: cp-tools.info,  Node: Signing Options,  Next: Verification Options,  Prev: Common jarsigner Options,  Up: jarsigner Tool
  
*************** File: cp-tools.info,  Node: Signing Opti
*** 397,454 ****
  The following options may be specified when using the tool for signing
  purposes.
  
! `-keystore URL'
       Use this option to specify the location of the key store to use.
       The default value is a file URL referencing the file named
!      `.keystore' located in the path returned by the call to
!      `java.lang.System#getProperty(String)' using `user.home' as
       argument.
  
!      If a URL was specified, but was found to be malformed -e.g.
!      missing protocol element- the tool will attempt to use the URL
!      value as a file-name (with absolute or relative path-name) of a
!      key store -as if the protocol was `file:'.
  
! `-storetype STORE_TYPE'
!      Use this option to specify the type of the key store to use. The
       default value, if this option is omitted, is that of the property
!      `keystore.type' in the security properties file, which is obtained
!      by invoking the static method call `getDefaultType()' in
!      `java.security.KeyStore'.
  
! `-storepass PASSWORD'
       Use this option to specify the password which will be used to
!      unlock the key store. If this option is missing, the User will be
       prompted to provide a password.
  
! `-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store. If
       this fails, you will then be prompted to provide a password.
  
! `-sigfile NAME'
       Use this option to designate a literal that will be used to
!      construct file names for both the `.SF' and `.DSA' signature
!      files. These files  will be generated, by the tool, and placed in
!      the `META-INF' directory of the signed JAR.  Permissible
!      characters for NAME must be in the range "a-zA-Z0-9_-".  All
!      characters will be converted to upper-case ones.
  
       If this option is missing, the first eight characters of the ALIAS
!      argument will be used. When this is the case, any character in
       ALIAS that is outside the permissible range of characters will be
       replaced by an underscore.
  
! `-signedjar FILE'
!      Use this option to specify the file name of the signed JAR. If
       this option is omitted, then the signed JAR will be named the same
       as FILE; i.e., the input JAR file will be replaced with the signed
       copy.
  
- 
  
  File: cp-tools.info,  Node: Verification Options,  Prev: Signing Options,  Up: jarsigner Tool
  
--- 393,449 ----
  The following options may be specified when using the tool for signing
  purposes.
  
! '-keystore URL'
       Use this option to specify the location of the key store to use.
       The default value is a file URL referencing the file named
!      '.keystore' located in the path returned by the call to
!      'java.lang.System#getProperty(String)' using 'user.home' as
       argument.
  
!      If a URL was specified, but was found to be malformed -e.g. missing
!      protocol element- the tool will attempt to use the URL value as a
!      file-name (with absolute or relative path-name) of a key store -as
!      if the protocol was 'file:'.
  
! '-storetype STORE_TYPE'
!      Use this option to specify the type of the key store to use.  The
       default value, if this option is omitted, is that of the property
!      'keystore.type' in the security properties file, which is obtained
!      by invoking the static method call 'getDefaultType()' in
!      'java.security.KeyStore'.
  
! '-storepass PASSWORD'
       Use this option to specify the password which will be used to
!      unlock the key store.  If this option is missing, the User will be
       prompted to provide a password.
  
! '-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store.  If
       this fails, you will then be prompted to provide a password.
  
! '-sigfile NAME'
       Use this option to designate a literal that will be used to
!      construct file names for both the '.SF' and '.DSA' signature files.
!      These files will be generated, by the tool, and placed in the
!      'META-INF' directory of the signed JAR.  Permissible characters for
!      NAME must be in the range "a-zA-Z0-9_-".  All characters will be
!      converted to upper-case ones.
  
       If this option is missing, the first eight characters of the ALIAS
!      argument will be used.  When this is the case, any character in
       ALIAS that is outside the permissible range of characters will be
       replaced by an underscore.
  
! '-signedjar FILE'
!      Use this option to specify the file name of the signed JAR.  If
       this option is omitted, then the signed JAR will be named the same
       as FILE; i.e., the input JAR file will be replaced with the signed
       copy.
  
  
  File: cp-tools.info,  Node: Verification Options,  Prev: Signing Options,  Up: jarsigner Tool
  
*************** File: cp-tools.info,  Node: Verification
*** 458,572 ****
  The following options may be specified when using the tool for
  verification purposes.
  
! `-verify'
       Use this option to indicate that the tool is to be used for
       verification purposes.
  
! `-certs'
!      This option is used in conjunction with the `-verbose' option.
!      When present, along with the `-verbose' option, the tool will
!      print more detailed information about the certificates of the
!      signer(s) being processed.
! 
  
  
  File: cp-tools.info,  Node: keytool Tool,  Prev: jarsigner Tool,  Up: Security Tools
  
! 2.2 The `keytool' Tool
  ======================
  
  Cryptographic credentials, in a Java environment, are usually stored in
! a Key Store. The Java SDK specifies a Key Store as a persistent
! container of two types of objects: Key Entries and Trusted
! Certificates. The security tool `keytool' is a Java-based application
! for managing those types of objects.
  
     A Key Entry represents the private key part of a key-pair used in
  Public-Key Cryptography, and a signed X.509 certificate which
  authenticates the public key part for a known entity; i.e. the owner of
! the key-pair. The X.509 certificate itself contains the public key part
  of the key-pair.
  
     A Trusted Certificate is a signed X.509 certificate issued by a
! trusted entity. The Trust in this context is relative to the User of
! the `keytool'. In other words, the existence of a Trusted Certificate
! in the Key Store processed by a `keytool' command implies that the User
  trusts the Issuer of that Trusted Certificate to also sign, and hence
  authenticates, other Subjects the tool may process.
  
     Trusted Certificates are important because they allow the tool to
  mechanically construct Chains of Trust starting from one of the Trusted
  Certificates in a Key Store and ending with a certificate whose Issuer
! is potentially unknown. A valid chain is an ordered list, starting with
  a Trusted Certificate (also called the anchor), ending with the target
  certificate, and satisfying the condition that the Subject of
! certificate `#i' is the Issuer of certificate `#i + 1'.
  
!    The `keytool' is invoked from the command line as follows:
  
       keytool [COMMAND] ...
  
     Multiple COMMANDs may be specified at once, each complete with its
! own options. `keytool' will parse all the arguments, before processing,
! and executing, each `COMMAND'. If an exception occurs while executing
! one COMMAND `keytool' will abort. Note however that because the
  implementation of the tool uses code to parse command line options that
! also supports GNU-style options, you have to separate each command
! group with a double-hyphen; e.g
  
       keytool -list -- -printcert -alias mykey
  
     Here is a summary of the commands supported by the tool:
  
    1. Add/Update commands
!     `-genkey [OPTION]...'
            Generate a new Key Entry, eventually creating a new key store.
  
!     `-import [OPTION]...'
!           Add, to a key store, Key Entries (private keys and
!           certificate chains authenticating the public keys) and
!           Trusted Certificates (3rd party certificates which can be
!           used as Trust Anchors when building chains-of-trust).
  
!     `-selfcert [OPTION]...'
            Generate a new self-signed Trusted Certificate.
  
!     `-cacert [OPTION]...'
            Import a CA Trusted Certificate.
  
!     `-identitydb [OPTION]...'
            NOT IMPLEMENTED YET.
            Import a JDK 1.1 style Identity Database.
  
    2. Export commands
!     `-certreq [OPTION]...'
            Issue a Certificate Signing Request (CSR) which can be then
            sent to a Certification Authority (CA) to issue a certificate
            signed (by the CA) and authenticating the Subject of the
            request.
  
!     `-export [OPTION]...'
            Export a certificate from a key store.
  
    3. Display commands
!     `-list [OPTION]...'
!           Print one or all certificates in a key store to `STDOUT'.
  
!     `-printcert [OPTION]...'
            Print a human-readable form of a certificate, in a designated
!           file, to `STDOUT'.
  
    4. Management commands
!     `-keyclone [OPTION]...'
            Clone a Key Entry in a key store.
  
!     `-storepasswd [OPTION]...'
            Change the password protecting a key store.
  
!     `-keypasswd [OPTION]...'
            Change the password protecting a Key Entry in a key store.
  
!     `-delete [OPTION]...'
            Delete a Key Entry or a Trusted Certificate from a key store.
  
  * Menu:
--- 453,566 ----
  The following options may be specified when using the tool for
  verification purposes.
  
! '-verify'
       Use this option to indicate that the tool is to be used for
       verification purposes.
  
! '-certs'
!      This option is used in conjunction with the '-verbose' option.
!      When present, along with the '-verbose' option, the tool will print
!      more detailed information about the certificates of the signer(s)
!      being processed.
  
  
  File: cp-tools.info,  Node: keytool Tool,  Prev: jarsigner Tool,  Up: Security Tools
  
! 2.2 The 'keytool' Tool
  ======================
  
  Cryptographic credentials, in a Java environment, are usually stored in
! a Key Store.  The Java SDK specifies a Key Store as a persistent
! container of two types of objects: Key Entries and Trusted Certificates.
! The security tool 'keytool' is a Java-based application for managing
! those types of objects.
  
     A Key Entry represents the private key part of a key-pair used in
  Public-Key Cryptography, and a signed X.509 certificate which
  authenticates the public key part for a known entity; i.e. the owner of
! the key-pair.  The X.509 certificate itself contains the public key part
  of the key-pair.
  
     A Trusted Certificate is a signed X.509 certificate issued by a
! trusted entity.  The Trust in this context is relative to the User of
! the 'keytool'.  In other words, the existence of a Trusted Certificate
! in the Key Store processed by a 'keytool' command implies that the User
  trusts the Issuer of that Trusted Certificate to also sign, and hence
  authenticates, other Subjects the tool may process.
  
     Trusted Certificates are important because they allow the tool to
  mechanically construct Chains of Trust starting from one of the Trusted
  Certificates in a Key Store and ending with a certificate whose Issuer
! is potentially unknown.  A valid chain is an ordered list, starting with
  a Trusted Certificate (also called the anchor), ending with the target
  certificate, and satisfying the condition that the Subject of
! certificate '#i' is the Issuer of certificate '#i + 1'.
  
!    The 'keytool' is invoked from the command line as follows:
  
       keytool [COMMAND] ...
  
     Multiple COMMANDs may be specified at once, each complete with its
! own options.  'keytool' will parse all the arguments, before processing,
! and executing, each 'COMMAND'.  If an exception occurs while executing
! one COMMAND 'keytool' will abort.  Note however that because the
  implementation of the tool uses code to parse command line options that
! also supports GNU-style options, you have to separate each command group
! with a double-hyphen; e.g
  
       keytool -list -- -printcert -alias mykey
  
     Here is a summary of the commands supported by the tool:
  
    1. Add/Update commands
!      '-genkey [OPTION]...'
            Generate a new Key Entry, eventually creating a new key store.
  
!      '-import [OPTION]...'
!           Add, to a key store, Key Entries (private keys and certificate
!           chains authenticating the public keys) and Trusted
!           Certificates (3rd party certificates which can be used as
!           Trust Anchors when building chains-of-trust).
  
!      '-selfcert [OPTION]...'
            Generate a new self-signed Trusted Certificate.
  
!      '-cacert [OPTION]...'
            Import a CA Trusted Certificate.
  
!      '-identitydb [OPTION]...'
            NOT IMPLEMENTED YET.
            Import a JDK 1.1 style Identity Database.
  
    2. Export commands
!      '-certreq [OPTION]...'
            Issue a Certificate Signing Request (CSR) which can be then
            sent to a Certification Authority (CA) to issue a certificate
            signed (by the CA) and authenticating the Subject of the
            request.
  
!      '-export [OPTION]...'
            Export a certificate from a key store.
  
    3. Display commands
!      '-list [OPTION]...'
!           Print one or all certificates in a key store to 'STDOUT'.
  
!      '-printcert [OPTION]...'
            Print a human-readable form of a certificate, in a designated
!           file, to 'STDOUT'.
  
    4. Management commands
!      '-keyclone [OPTION]...'
            Clone a Key Entry in a key store.
  
!      '-storepasswd [OPTION]...'
            Change the password protecting a key store.
  
!      '-keypasswd [OPTION]...'
            Change the password protecting a Key Entry in a key store.
  
!      '-delete [OPTION]...'
            Delete a Key Entry or a Trusted Certificate from a key store.
  
  * Menu:
*************** File: cp-tools.info,  Node: Getting Help
*** 585,604 ****
  2.2.1 Getting help
  ------------------
  
! To get a general help text about the tool, use the `-help' option; e.g.
  
!      `keytool -help'
  
     To get more specific help text about one of the tool's command use
! the `-help' option for that command; e.g.
  
!      `keytool -genkey -help'
  
!    In both instances, the tool will print a help text and then will
! exit the running JVM.
  
     It is worth noting here that the help messages printed by the tool
! are I18N-ready. This means that if/when the contents of the tool's
  Message Bundle properties file are available in languages other than
  English, you may see those messages in that language.
  
--- 579,598 ----
  2.2.1 Getting help
  ------------------
  
! To get a general help text about the tool, use the '-help' option; e.g.
  
!      keytool -help
  
     To get more specific help text about one of the tool's command use
! the '-help' option for that command; e.g.
  
!      keytool -genkey -help
  
!    In both instances, the tool will print a help text and then will exit
! the running JVM.
  
     It is worth noting here that the help messages printed by the tool
! are I18N-ready.  This means that if/when the contents of the tool's
  Message Bundle properties file are available in languages other than
  English, you may see those messages in that language.
  
*************** File: cp-tools.info,  Node: Common keyto
*** 608,686 ****
  2.2.2 Common options
  --------------------
  
! The following `OPTION's are used in more than one `COMMAND'. They are
  described here to reduce redundancy.
  
! `-alias ALIAS'
       Every entry, be it a Key Entry or a Trusted Certificate, in a key
!      store is uniquely identified by a user-defined ALIAS string. Use
       this option to specify the ALIAS to use when referring to an entry
!      in the key store. Unless specified otherwise, a default value of
!      `mykey' shall be used when this option is omitted from the command
       line.
  
! `-keyalg ALGORITHM'
       Use this option to specify the canonical name of the key-pair
!      generation algorithm. The default value for this option is `DSS'
       (a synonym for the Digital Signature Algorithm also known as DSA).
  
! `-keysize SIZE'
!      Use this option to specify the number of bits of the shared
!      modulus (for both the public and private keys) to use when
!      generating new keys. A default value of `1024' will be used if
!      this option is omitted from the command line.
  
! `-validity DAY_COUNT'
       Use this option to specify the number of days a newly generated
!      certificate will be valid for. The default value is `90' (days) if
       this option is omitted from the command line.
  
! `-storetype STORE_TYPE'
!      Use this option to specify the type of the key store to use. The
       default value, if this option is omitted, is that of the property
!      `keystore.type' in the security properties file, which is obtained
!      by invoking the static method call `getDefaultType()' in
!      `java.security.KeyStore'.
  
! `-storepass PASSWORD'
       Use this option to specify the password protecting the key store.
       If this option is omitted from the command line, you will be
       prompted to provide a password.
  
! `-keystore URL'
       Use this option to specify the location of the key store to use.
       The default value is a file URL referencing the file named
!      `.keystore' located in the path returned by the call to
!      `java.lang.System#getProperty(String)' using `user.home' as
       argument.
  
!      If a URL was specified, but was found to be malformed -e.g.
!      missing protocol element- the tool will attempt to use the URL
!      value as a file-name (with absolute or relative path-name) of a
!      key store -as if the protocol was `file:'.
  
! `-provider PROVIDER_CLASS_NAME'
       A fully qualified class name of a Security Provider to add to the
       current list of Security Providers already installed in the JVM
!      in-use. If a provider class is specified with this option, and was
       successfully added to the runtime -i.e. it was not already
       installed- then the tool will attempt to removed this Security
       Provider before exiting.
  
! `-file FILE'
!      Use this option to designate a file to use with a command. When
       specified with this option, the value is expected to be the fully
!      qualified path of a file accessible by the File System. Depending
!      on the command, the file may be used as input or as output. When
!      this option is omitted from the command line, `STDIN' will be used
!      instead, as the source of input, and `STDOUT' will be used instead
       as the output destination.
  
! `-v'
       Unless specified otherwise, use this option to enable more verbose
       output.
  
- 
  
  File: cp-tools.info,  Node: Distinguished Names,  Next: Add/Update Commands,  Prev: Common keytool Options,  Up: keytool Tool
  
--- 602,679 ----
  2.2.2 Common options
  --------------------
  
! The following 'OPTION's are used in more than one 'COMMAND'.  They are
  described here to reduce redundancy.
  
! '-alias ALIAS'
       Every entry, be it a Key Entry or a Trusted Certificate, in a key
!      store is uniquely identified by a user-defined ALIAS string.  Use
       this option to specify the ALIAS to use when referring to an entry
!      in the key store.  Unless specified otherwise, a default value of
!      'mykey' shall be used when this option is omitted from the command
       line.
  
! '-keyalg ALGORITHM'
       Use this option to specify the canonical name of the key-pair
!      generation algorithm.  The default value for this option is 'DSS'
       (a synonym for the Digital Signature Algorithm also known as DSA).
  
! '-keysize SIZE'
!      Use this option to specify the number of bits of the shared modulus
!      (for both the public and private keys) to use when generating new
!      keys.  A default value of '1024' will be used if this option is
!      omitted from the command line.
  
! '-validity DAY_COUNT'
       Use this option to specify the number of days a newly generated
!      certificate will be valid for.  The default value is '90' (days) if
       this option is omitted from the command line.
  
! '-storetype STORE_TYPE'
!      Use this option to specify the type of the key store to use.  The
       default value, if this option is omitted, is that of the property
!      'keystore.type' in the security properties file, which is obtained
!      by invoking the static method call 'getDefaultType()' in
!      'java.security.KeyStore'.
  
! '-storepass PASSWORD'
       Use this option to specify the password protecting the key store.
       If this option is omitted from the command line, you will be
       prompted to provide a password.
  
! '-keystore URL'
       Use this option to specify the location of the key store to use.
       The default value is a file URL referencing the file named
!      '.keystore' located in the path returned by the call to
!      'java.lang.System#getProperty(String)' using 'user.home' as
       argument.
  
!      If a URL was specified, but was found to be malformed -e.g. missing
!      protocol element- the tool will attempt to use the URL value as a
!      file-name (with absolute or relative path-name) of a key store -as
!      if the protocol was 'file:'.
  
! '-provider PROVIDER_CLASS_NAME'
       A fully qualified class name of a Security Provider to add to the
       current list of Security Providers already installed in the JVM
!      in-use.  If a provider class is specified with this option, and was
       successfully added to the runtime -i.e. it was not already
       installed- then the tool will attempt to removed this Security
       Provider before exiting.
  
! '-file FILE'
!      Use this option to designate a file to use with a command.  When
       specified with this option, the value is expected to be the fully
!      qualified path of a file accessible by the File System.  Depending
!      on the command, the file may be used as input or as output.  When
!      this option is omitted from the command line, 'STDIN' will be used
!      instead, as the source of input, and 'STDOUT' will be used instead
       as the output destination.
  
! '-v'
       Unless specified otherwise, use this option to enable more verbose
       output.
  
  
  File: cp-tools.info,  Node: Distinguished Names,  Next: Add/Update Commands,  Prev: Common keytool Options,  Up: keytool Tool
  
*************** File: cp-tools.info,  Node: Distinguishe
*** 688,723 ****
  -------------------------------
  
  A Distinguished Name (or DN) MUST be supplied with some of the
! `COMMAND's using a `-dname' option. The syntax of a valid value for
! this option MUST follow RFC-2253 specifications. Namely the following
! components (with their accepted meaning) will be recognized. Note that
  the component name is case-insensitive:
  
  CN
!      The Common Name; e.g. `host.domain.com'
! 
  OU
!      The Organizational Unit; e.g. `IT Department'
! 
  O
!      The Organization Name; e.g. `The Sample Company'
! 
  L
!      The Locality Name; e.g. `Sydney'
! 
  ST
!      The State Name; e.g. `New South Wales'
! 
  C
!      The 2-letter Country identifier; e.g. `AU'
  
!    When specified with a `-dname' option, each pair of component/value
! will be separated from the other with a comma. Each component and value
! pair MUST be separated by an equal sign. For example, the following is
  a valid DN value:
  CN=host.domain.com, O=The Sample Company, L=Sydney, ST=NSW, C=AU
  
! If the Distinguished Name is required, and no valid default value can
  be used, the tool will prompt you to enter the information through the
  console.
  
--- 681,712 ----
  -------------------------------
  
  A Distinguished Name (or DN) MUST be supplied with some of the
! 'COMMAND's using a '-dname' option.  The syntax of a valid value for
! this option MUST follow RFC-2253 specifications.  Namely the following
! components (with their accepted meaning) will be recognized.  Note that
  the component name is case-insensitive:
  
  CN
!      The Common Name; e.g. 'host.domain.com'
  OU
!      The Organizational Unit; e.g. 'IT Department'
  O
!      The Organization Name; e.g. 'The Sample Company'
  L
!      The Locality Name; e.g. 'Sydney'
  ST
!      The State Name; e.g. 'New South Wales'
  C
!      The 2-letter Country identifier; e.g. 'AU'
  
!    When specified with a '-dname' option, each pair of component/value
! will be separated from the other with a comma.  Each component and value
! pair MUST be separated by an equal sign.  For example, the following is
  a valid DN value:
+ 
  CN=host.domain.com, O=The Sample Company, L=Sydney, ST=NSW, C=AU
  
!    If the Distinguished Name is required, and no valid default value can
  be used, the tool will prompt you to enter the information through the
  console.
  
*************** File: cp-tools.info,  Node: Add/Update C
*** 738,1011 ****
  
  File: cp-tools.info,  Node: Command -genkey,  Next: Command -import,  Prev: Add/Update Commands,  Up: Add/Update Commands
  
! 2.2.4.1 The `-genkey' command
  .............................
  
  Use this command to generate a new key-pair (both private and public
  keys), and save these credentials in the key store as a Key Entry,
! associated with the designated (if was specified with the `-alias'
! option) or default (if the `-alias' option is omitted) Alias.
  
     The private key material will be protected with a user-defined
! password (see `-keypass' option). The public key on the other hand will
  be part of a self-signed X.509 certificate, which will form a 1-element
  chain and will be saved in the key store.
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-keyalg ALGORITHM'
       For more details *note ALGORITHM: keyalg.
  
! `-keysize KEY_SIZE'
       For more details *note KEY_SIZE: keysize.
  
! `-sigalg ALGORITHM'
       The canonical name of the digital signature algorithm to use for
!      signing certificates. If this option is omitted, a default value
       will be chosen based on the type of the key-pair; i.e., the
!      algorithm that ends up being used by the -keyalg option. If the
!      key-pair generation algorithm is `DSA', the value for the
!      signature algorithm will be `SHA1withDSA'. If on the other hand
!      the key-pair generation algorithm is `RSA', then the tool will use
!      `MD5withRSA' as the signature algorithm.
  
! `-dname NAME'
!      This a mandatory value for the command. If no value is specified
!      -i.e. the `-dname' option is omitted- the tool will prompt you to
       enter a Distinguished Name to use as both the Owner and Issuer of
       the generated self-signed certificate.
  
       For more details *note X.500 DISTINGUISHED NAME: dn.
  
! `-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       protect the newly created Key Entry.
  
       If this option is omitted, you will be prompted to provide a
       password.
  
! `-validity DAY_COUNT'
       For more details *note DAY_COUNT: validity.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -import,  Next: Command -selfcert,  Prev: Command -genkey,  Up: Add/Update Commands
  
! 2.2.4.2 The `-import' command
  .............................
  
  Use this command to read an X.509 certificate, or a PKCS#7 Certificate
  Reply from a designated input source and incorporate the certificates
  into the key store.
  
!    If the Alias does not already exist in the key store, the tool
! treats the certificate read from the input source as a new Trusted
! Certificate. It then attempts to discover a chain-of-trust, starting
! from that certificate and ending at another Trusted Certificate,
! already stored in the key store. If the `-trustcacerts' option is
! present, an additional key store, of type `JKS' named `cacerts', and
! assumed to be present in `${JAVA_HOME}/lib/security' will also be
! consulted if found -`${JAVA_HOME}' refers to the location of an
! installed Java Runtime Environment (JRE). If no chain-of-trust can be
! established, and unless the `-noprompt' option has been specified, the
! certificate is printed to `STDOUT' and the user is prompted for a
! confirmation.
  
     If Alias exists in the key store, the tool will treat the
  certificate(s) read from the input source as a Certificate Reply, which
  can be a chain of certificates, that eventually would replace the chain
! of certificates associated with the Key Entry of that Alias. The
  substitution of the certificates only occurs if a chain-of-trust can be
  established between the bottom certificate of the chain read from the
  input file and the Trusted Certificates already present in the key
! store. Again, if the `-trustcacerts' option is specified, additional
! Trusted Certificates in the same `cacerts' key store will be
! considered. If no chain-of-trust can be established, the operation will
! abort.
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-file FILE'
       For more details *note FILE: file.
  
! `-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       protect the Key Entry associated with the designated Alias, when
       replacing this Alias' chain of certificates with that found in the
       certificate reply.
  
       If this option is omitted, and the chain-of-trust for the
!      certificate reply has been established, the tool will first
!      attempt to unlock the Key Entry using the same password protecting
!      the key store. If this fails, you will then be prompted to provide
!      a password.
  
! `-noprompt'
       Use this option to prevent the tool from prompting the user.
  
! `-trustcacerts'
       Use this option to indicate to the tool that a key store, of type
!      `JKS', named `cacerts', and usually located in `lib/security' in
!      an installed Java Runtime Environment should be considered when
!      trying to establish chain-of-trusts.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -selfcert,  Next: Command -cacert,  Prev: Command -import,  Up: Add/Update Commands
  
! 2.2.4.3 The `-selfcert' command
  ...............................
  
  Use this command to generate a self-signed X.509 version 1 certificate.
  The newly generated certificate will form a chain of one element which
! will replace the previous chain associated with the designated Alias
! (if `-alias' option was specified), or the default Alias (if `-alias'
! option was omitted).
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-sigalg ALGORITHM'
       The canonical name of the digital signature algorithm to use for
!      signing the certificate. If this option is omitted, a default
       value will be chosen based on the type of the private key
!      associated with the designated Alias. If the private key is a
!      `DSA' one, the value for the signature algorithm will be
!      `SHA1withDSA'. If on the other hand the private key is an `RSA'
!      one, then the tool will use `MD5withRSA' as the signature
       algorithm.
  
! `-dname NAME'
       Use this option to specify the Distinguished Name of the newly
!      generated self-signed certificate. If this option is omitted, the
       existing Distinguished Name of the base certificate in the chain
       associated with the designated Alias will be used instead.
  
       For more details *note X.500 DISTINGUISHED NAME: dn.
  
! `-validity DAY_COUNT'
       For more details *note DAY_COUNT: validity.
  
! `-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store. If
       this fails, you will then be prompted to provide a password.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -cacert,  Next: Command -identitydb,  Prev: Command -selfcert,  Up: Add/Update Commands
  
! 2.2.4.4 The `-cacert' command
  .............................
  
! Use this command to import, a CA certificate and add it to the key
! store as a Trusted Certificate. The Alias for this new entry will be
  constructed from the FILE's base-name after replacing hyphens and dots
  with underscores.
  
     This command is useful when used in a script that recursively visits
! a directory of CA certificates to populate a `cacerts.gkr' Key Store of
  trusted certificates which can then be used commands that specify the
! `-trustcacerts' option.
  
! `-file FILE'
       For more details *note FILE: file.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -identitydb,  Prev: Command -cacert,  Up: Add/Update Commands
  
! 2.2.4.5 The `-identitydb' command
  .................................
  
  NOT IMPLEMENTED YET.
  
     Use this command to import a JDK 1.1 style Identity Database.
  
! `-file FILE'
       For more details *note FILE: file.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Export Commands,  Next: Display Commands,  Prev: Add/Update Commands,  Up: keytool Tool
  
--- 727,993 ----
  
  File: cp-tools.info,  Node: Command -genkey,  Next: Command -import,  Prev: Add/Update Commands,  Up: Add/Update Commands
  
! 2.2.4.1 The '-genkey' command
  .............................
  
  Use this command to generate a new key-pair (both private and public
  keys), and save these credentials in the key store as a Key Entry,
! associated with the designated (if was specified with the '-alias'
! option) or default (if the '-alias' option is omitted) Alias.
  
     The private key material will be protected with a user-defined
! password (see '-keypass' option).  The public key on the other hand will
  be part of a self-signed X.509 certificate, which will form a 1-element
  chain and will be saved in the key store.
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-keyalg ALGORITHM'
       For more details *note ALGORITHM: keyalg.
  
! '-keysize KEY_SIZE'
       For more details *note KEY_SIZE: keysize.
  
! '-sigalg ALGORITHM'
       The canonical name of the digital signature algorithm to use for
!      signing certificates.  If this option is omitted, a default value
       will be chosen based on the type of the key-pair; i.e., the
!      algorithm that ends up being used by the -keyalg option.  If the
!      key-pair generation algorithm is 'DSA', the value for the signature
!      algorithm will be 'SHA1withDSA'.  If on the other hand the key-pair
!      generation algorithm is 'RSA', then the tool will use 'MD5withRSA'
!      as the signature algorithm.
  
! '-dname NAME'
!      This a mandatory value for the command.  If no value is specified
!      -i.e. the '-dname' option is omitted- the tool will prompt you to
       enter a Distinguished Name to use as both the Owner and Issuer of
       the generated self-signed certificate.
  
       For more details *note X.500 DISTINGUISHED NAME: dn.
  
! '-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       protect the newly created Key Entry.
  
       If this option is omitted, you will be prompted to provide a
       password.
  
! '-validity DAY_COUNT'
       For more details *note DAY_COUNT: validity.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -import,  Next: Command -selfcert,  Prev: Command -genkey,  Up: Add/Update Commands
  
! 2.2.4.2 The '-import' command
  .............................
  
  Use this command to read an X.509 certificate, or a PKCS#7 Certificate
  Reply from a designated input source and incorporate the certificates
  into the key store.
  
!    If the Alias does not already exist in the key store, the tool treats
! the certificate read from the input source as a new Trusted Certificate.
! It then attempts to discover a chain-of-trust, starting from that
! certificate and ending at another Trusted Certificate, already stored in
! the key store.  If the '-trustcacerts' option is present, an additional
! key store, of type 'JKS' named 'cacerts', and assumed to be present in
! '${JAVA_HOME}/lib/security' will also be consulted if found
! -'${JAVA_HOME}' refers to the location of an installed Java Runtime
! Environment (JRE). If no chain-of-trust can be established, and unless
! the '-noprompt' option has been specified, the certificate is printed to
! 'STDOUT' and the user is prompted for a confirmation.
  
     If Alias exists in the key store, the tool will treat the
  certificate(s) read from the input source as a Certificate Reply, which
  can be a chain of certificates, that eventually would replace the chain
! of certificates associated with the Key Entry of that Alias.  The
  substitution of the certificates only occurs if a chain-of-trust can be
  established between the bottom certificate of the chain read from the
  input file and the Trusted Certificates already present in the key
! store.  Again, if the '-trustcacerts' option is specified, additional
! Trusted Certificates in the same 'cacerts' key store will be considered.
! If no chain-of-trust can be established, the operation will abort.
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-file FILE'
       For more details *note FILE: file.
  
! '-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       protect the Key Entry associated with the designated Alias, when
       replacing this Alias' chain of certificates with that found in the
       certificate reply.
  
       If this option is omitted, and the chain-of-trust for the
!      certificate reply has been established, the tool will first attempt
!      to unlock the Key Entry using the same password protecting the key
!      store.  If this fails, you will then be prompted to provide a
!      password.
  
! '-noprompt'
       Use this option to prevent the tool from prompting the user.
  
! '-trustcacerts'
       Use this option to indicate to the tool that a key store, of type
!      'JKS', named 'cacerts', and usually located in 'lib/security' in an
!      installed Java Runtime Environment should be considered when trying
!      to establish chain-of-trusts.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -selfcert,  Next: Command -cacert,  Prev: Command -import,  Up: Add/Update Commands
  
! 2.2.4.3 The '-selfcert' command
  ...............................
  
  Use this command to generate a self-signed X.509 version 1 certificate.
  The newly generated certificate will form a chain of one element which
! will replace the previous chain associated with the designated Alias (if
! '-alias' option was specified), or the default Alias (if '-alias' option
! was omitted).
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-sigalg ALGORITHM'
       The canonical name of the digital signature algorithm to use for
!      signing the certificate.  If this option is omitted, a default
       value will be chosen based on the type of the private key
!      associated with the designated Alias.  If the private key is a
!      'DSA' one, the value for the signature algorithm will be
!      'SHA1withDSA'.  If on the other hand the private key is an 'RSA'
!      one, then the tool will use 'MD5withRSA' as the signature
       algorithm.
  
! '-dname NAME'
       Use this option to specify the Distinguished Name of the newly
!      generated self-signed certificate.  If this option is omitted, the
       existing Distinguished Name of the base certificate in the chain
       associated with the designated Alias will be used instead.
  
       For more details *note X.500 DISTINGUISHED NAME: dn.
  
! '-validity DAY_COUNT'
       For more details *note DAY_COUNT: validity.
  
! '-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store.  If
       this fails, you will then be prompted to provide a password.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -cacert,  Next: Command -identitydb,  Prev: Command -selfcert,  Up: Add/Update Commands
  
! 2.2.4.4 The '-cacert' command
  .............................
  
! Use this command to import, a CA certificate and add it to the key store
! as a Trusted Certificate.  The Alias for this new entry will be
  constructed from the FILE's base-name after replacing hyphens and dots
  with underscores.
  
     This command is useful when used in a script that recursively visits
! a directory of CA certificates to populate a 'cacerts.gkr' Key Store of
  trusted certificates which can then be used commands that specify the
! '-trustcacerts' option.
  
! '-file FILE'
       For more details *note FILE: file.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -identitydb,  Prev: Command -cacert,  Up: Add/Update Commands
  
! 2.2.4.5 The '-identitydb' command
  .................................
  
  NOT IMPLEMENTED YET.
  
     Use this command to import a JDK 1.1 style Identity Database.
  
! '-file FILE'
       For more details *note FILE: file.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Export Commands,  Next: Display Commands,  Prev: Add/Update Commands,  Up: keytool Tool
  
*************** File: cp-tools.info,  Node: Export Comma
*** 1020,1031 ****
  
  File: cp-tools.info,  Node: Command -certreq,  Next: Command -export,  Prev: Export Commands,  Up: Export Commands
  
! 2.2.5.1 The `-certreq' command
  ..............................
  
! Use this command to generate a PKCS#10 Certificate Signing Request
! (CSR) and write it to a designated output destination. The contents of
! the destination should look something like the following:
  
       -----BEGIN NEW CERTIFICATE REQUEST-----
       MI...QAwXzEUMBIGA1UEAwwLcnNuQGdudS5vcmcxGzAZBgNVBAoMElUg
--- 1002,1013 ----
  
  File: cp-tools.info,  Node: Command -certreq,  Next: Command -export,  Prev: Export Commands,  Up: Export Commands
  
! 2.2.5.1 The '-certreq' command
  ..............................
  
! Use this command to generate a PKCS#10 Certificate Signing Request (CSR)
! and write it to a designated output destination.  The contents of the
! destination should look something like the following:
  
       -----BEGIN NEW CERTIFICATE REQUEST-----
       MI...QAwXzEUMBIGA1UEAwwLcnNuQGdudS5vcmcxGzAZBgNVBAoMElUg
*************** the destination should look something li
*** 1035,1129 ****
       -----END NEW CERTIFICATE REQUEST-----
  
     IMPORTANT: Some documentation (e.g. RSA examples) claims that the
! `Attributes' field, in the CSR is `OPTIONAL' while RFC-2986 implies the
! opposite. This implementation considers this field, by default, as
! `OPTIONAL', unless the option `-attributes' is specified on the command
  line.
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-sigalg ALGORITHM'
       The canonical name of the digital signature algorithm to use for
!      signing the certificate. If this option is omitted, a default
       value will be chosen based on the type of the private key
!      associated with the designated Alias. If the private key is a
!      `DSA' one, the value for the signature algorithm will be
!      `SHA1withDSA'. If on the other hand the private key is an `RSA'
!      one, then the tool will use `MD5withRSA' as the signature
       algorithm.
  
! `-file FILE'
       For more details *note FILE: file.
  
! `-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store. If
       this fails, you will then be prompted to provide a password.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
! `-attributes'
!      Use this option to force the tool to encode a `NULL' DER value in
!      the CSR as the value of the `Attributes' field.
! 
  
  
  File: cp-tools.info,  Node: Command -export,  Prev: Command -certreq,  Up: Export Commands
  
! 2.2.5.2 The `-export' command
  .............................
  
  Use this command to export a certificate stored in a key store to a
! designated output destination, either in binary format (if the `-v'
! option is specified), or in RFC-1421 compliant encoding (if the `-rfc'
  option is specified instead).
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-file FILE'
       For more details *note FILE: file.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-rfc'
       Use RFC-1421 specifications when encoding the output.
  
! `-v'
!      Output the certificate in binary DER encoding. This is the default
!      output format of the command if neither `-rfc' nor `-v' options
!      were detected on the command line. If both this option and the
!      `-rfc' option are detected on the command line, the tool will opt
       for the RFC-1421 style encoding.
  
- 
  
  File: cp-tools.info,  Node: Display Commands,  Next: Management Commands,  Prev: Export Commands,  Up: keytool Tool
  
--- 1017,1109 ----
       -----END NEW CERTIFICATE REQUEST-----
  
     IMPORTANT: Some documentation (e.g. RSA examples) claims that the
! 'Attributes' field, in the CSR is 'OPTIONAL' while RFC-2986 implies the
! opposite.  This implementation considers this field, by default, as
! 'OPTIONAL', unless the option '-attributes' is specified on the command
  line.
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-sigalg ALGORITHM'
       The canonical name of the digital signature algorithm to use for
!      signing the certificate.  If this option is omitted, a default
       value will be chosen based on the type of the private key
!      associated with the designated Alias.  If the private key is a
!      'DSA' one, the value for the signature algorithm will be
!      'SHA1withDSA'.  If on the other hand the private key is an 'RSA'
!      one, then the tool will use 'MD5withRSA' as the signature
       algorithm.
  
! '-file FILE'
       For more details *note FILE: file.
  
! '-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store.  If
       this fails, you will then be prompted to provide a password.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
! '-attributes'
!      Use this option to force the tool to encode a 'NULL' DER value in
!      the CSR as the value of the 'Attributes' field.
  
  
  File: cp-tools.info,  Node: Command -export,  Prev: Command -certreq,  Up: Export Commands
  
! 2.2.5.2 The '-export' command
  .............................
  
  Use this command to export a certificate stored in a key store to a
! designated output destination, either in binary format (if the '-v'
! option is specified), or in RFC-1421 compliant encoding (if the '-rfc'
  option is specified instead).
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-file FILE'
       For more details *note FILE: file.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-rfc'
       Use RFC-1421 specifications when encoding the output.
  
! '-v'
!      Output the certificate in binary DER encoding.  This is the default
!      output format of the command if neither '-rfc' nor '-v' options
!      were detected on the command line.  If both this option and the
!      '-rfc' option are detected on the command line, the tool will opt
       for the RFC-1421 style encoding.
  
  
  File: cp-tools.info,  Node: Display Commands,  Next: Management Commands,  Prev: Export Commands,  Up: keytool Tool
  
*************** File: cp-tools.info,  Node: Display Comm
*** 1138,1194 ****
  
  File: cp-tools.info,  Node: Command -list,  Next: Command -printcert,  Prev: Display Commands,  Up: Display Commands
  
! 2.2.6.1 The `-list' command
  ...........................
  
! Use this command to print one or all of a key store entries to
! `STDOUT'. Usually this command will only print a fingerprint of the
! certificate, unless either the `-rfc' or the `-v' option is specified.
  
! `-alias ALIAS'
       If this option is omitted, the tool will print ALL the entries
       found in the key store.
  
       For more details *note ALIAS: alias.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-rfc'
       Use RFC-1421 specifications when encoding the output.
  
! `-v'
!      Output the certificate in human-readable format. If both this
!      option and the `-rfc' option are detected on the command line, the
       tool will opt for the human-readable form and will not abort the
       command.
  
- 
  
  File: cp-tools.info,  Node: Command -printcert,  Prev: Command -list,  Up: Display Commands
  
! 2.2.6.2 The `-printcert' command
  ................................
  
  Use this command to read a certificate from a designated input source
! and print it to `STDOUT' in a human-readable form.
  
! `-file FILE'
       For more details *note FILE: file.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Management Commands,  Prev: Display Commands,  Up: keytool Tool
  
--- 1118,1172 ----
  
  File: cp-tools.info,  Node: Command -list,  Next: Command -printcert,  Prev: Display Commands,  Up: Display Commands
  
! 2.2.6.1 The '-list' command
  ...........................
  
! Use this command to print one or all of a key store entries to 'STDOUT'.
! Usually this command will only print a fingerprint of the certificate,
! unless either the '-rfc' or the '-v' option is specified.
  
! '-alias ALIAS'
       If this option is omitted, the tool will print ALL the entries
       found in the key store.
  
       For more details *note ALIAS: alias.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-rfc'
       Use RFC-1421 specifications when encoding the output.
  
! '-v'
!      Output the certificate in human-readable format.  If both this
!      option and the '-rfc' option are detected on the command line, the
       tool will opt for the human-readable form and will not abort the
       command.
  
  
  File: cp-tools.info,  Node: Command -printcert,  Prev: Command -list,  Up: Display Commands
  
! 2.2.6.2 The '-printcert' command
  ................................
  
  Use this command to read a certificate from a designated input source
! and print it to 'STDOUT' in a human-readable form.
  
! '-file FILE'
       For more details *note FILE: file.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Management Commands,  Prev: Display Commands,  Up: keytool Tool
  
*************** File: cp-tools.info,  Node: Management C
*** 1205,1346 ****
  
  File: cp-tools.info,  Node: Command -keyclone,  Next: Command -storepasswd,  Prev: Management Commands,  Up: Management Commands
  
! 2.2.7.1 The `-keyclone' command
  ...............................
  
! Use this command to clone an existing Key Entry and store it under a
! new (different) Alias protecting, its private key material with
! possibly a new password.
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-dest ALIAS'
       Use this option to specify the new Alias which will be used to
       identify the cloned copy of the Key Entry.
  
! `-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store. If
       this fails, you will then be prompted to provide a password.
  
! `-new PASSWORD'
       Use this option to specify the password protecting the private key
       material of the newly cloned copy of the Key Entry.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -storepasswd,  Next: Command -keypasswd,  Prev: Command -keyclone,  Up: Management Commands
  
! 2.2.7.2 The `-storepasswd' command
  ..................................
  
  Use this command to change the password protecting a key store.
  
! `-new PASSWORD'
       The new, and different, password which will be used to protect the
       designated key store.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -keypasswd,  Next: Command -delete,  Prev: Command -storepasswd,  Up: Management Commands
  
! 2.2.7.3 The `-keypasswd' command
  ................................
  
  Use this command to change the password protecting the private key
  material of a designated Key Entry.
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store. If
       this fails, you will then be prompted to provide a password.
  
! `-new PASSWORD'
       The new, and different, password which will be used to protect the
       private key material of the designated Key Entry.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Command -delete,  Prev: Command -keypasswd,  Up: Management Commands
  
! 2.2.7.4 The `-delete' command
  .............................
  
  Use this command to delete a designated key store entry.
  
! `-alias ALIAS'
       For more details *note ALIAS: alias.
  
! `-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! `-keystore URL'
       For more details *note URL: keystore.
  
! `-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! `-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! `-v'
       For more details *note verbose::.
  
- 
  
  File: cp-tools.info,  Node: Other Tools,  Next: I18N Issues,  Prev: Security Tools,  Up: Top
  
--- 1183,1320 ----
  
  File: cp-tools.info,  Node: Command -keyclone,  Next: Command -storepasswd,  Prev: Management Commands,  Up: Management Commands
  
! 2.2.7.1 The '-keyclone' command
  ...............................
  
! Use this command to clone an existing Key Entry and store it under a new
! (different) Alias protecting, its private key material with possibly a
! new password.
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-dest ALIAS'
       Use this option to specify the new Alias which will be used to
       identify the cloned copy of the Key Entry.
  
! '-keypass PASSWORD'
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store.  If
       this fails, you will then be prompted to provide a password.
  
! '-new PASSWORD'
       Use this option to specify the password protecting the private key
       material of the newly cloned copy of the Key Entry.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -storepasswd,  Next: Command -keypasswd,  Prev: Command -keyclone,  Up: Management Commands
  
! 2.2.7.2 The '-storepasswd' command
  ..................................
  
  Use this command to change the password protecting a key store.
  
! '-new PASSWORD'
       The new, and different, password which will be used to protect the
       designated key store.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -keypasswd,  Next: Command -delete,  Prev: Command -storepasswd,  Up: Management Commands
  
! 2.2.7.3 The '-keypasswd' command
  ................................
  
  Use this command to change the password protecting the private key
  material of a designated Key Entry.
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
       Use this option to specify the password which the tool will use to
       unlock the Key Entry associated with the designated Alias.
  
       If this option is omitted, the tool will first attempt to unlock
!      the Key Entry using the same password protecting the key store.  If
       this fails, you will then be prompted to provide a password.
  
! '-new PASSWORD'
       The new, and different, password which will be used to protect the
       private key material of the designated Key Entry.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Command -delete,  Prev: Command -keypasswd,  Up: Management Commands
  
! 2.2.7.4 The '-delete' command
  .............................
  
  Use this command to delete a designated key store entry.
  
! '-alias ALIAS'
       For more details *note ALIAS: alias.
  
! '-storetype STORE_TYPE'
       For more details *note STORE_TYPE: storetype.
  
! '-keystore URL'
       For more details *note URL: keystore.
  
! '-storepass PASSWORD'
       For more details *note PASSWORD: storepass.
  
! '-provider PROVIDER_CLASS_NAME'
       For more details *note PROVIDER_CLASS_NAME: provider.
  
! '-v'
       For more details *note verbose::.
  
  
  File: cp-tools.info,  Node: Other Tools,  Next: I18N Issues,  Prev: Security Tools,  Up: Top
  
*************** gcjh, native2ascii, orbd, serialver, rmi
*** 1366,1434 ****
  
  File: cp-tools.info,  Node: jar Tool,  Next: javah Tool,  Up: Other Tools
  
! 3.1 The `jar' Tool
  ==================
  
! `gjar' is an implementation of Sun's jar utility that comes with the
  JDK.
  
     If any file is a directory then it is processed recursively.  The
  manifest file name and the archive file name needs to be specified in
! the same order the `-m' and `-f' flags are specified.
  
     Operation mode:
  
! `-c'
       Create new archive.
  
! `-t'
       List table of contents for archive.
  
! `-x'
       Extract named (or all) files from archive.
  
! `-u'
       Update existing archive.
  
! `-i FILE'
       Compute archive index.
  
     Operation modifiers:
  
! `-f FILE'
       Specify archive file name.
  
! `-0'
       Store only; use no ZIP compression.
  
! `-v'
       Generate verbose output on standard output.
  
! `-M'
       Do not create a manifest file for the entries.
  
! `-m MANIFEST'
       Include manifest information from specified MANIFEST file.
  
     File name selection:
  
! `-C DIR FILE'
       Change to the DIR and include the following FILE.
  
! `-@'
       Read the names of the files to add to the archive from stdin.  This
!      option is supported only in combination with `-c' or `-u'.  Non
       standard option added in the GCC version.
  
     Standard options:
  
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
--- 1340,1406 ----
  
  File: cp-tools.info,  Node: jar Tool,  Next: javah Tool,  Up: Other Tools
  
! 3.1 The 'jar' Tool
  ==================
  
! 'gjar' is an implementation of Sun's jar utility that comes with the
  JDK.
  
     If any file is a directory then it is processed recursively.  The
  manifest file name and the archive file name needs to be specified in
! the same order the '-m' and '-f' flags are specified.
  
     Operation mode:
  
! '-c'
       Create new archive.
  
! '-t'
       List table of contents for archive.
  
! '-x'
       Extract named (or all) files from archive.
  
! '-u'
       Update existing archive.
  
! '-i FILE'
       Compute archive index.
  
     Operation modifiers:
  
! '-f FILE'
       Specify archive file name.
  
! '-0'
       Store only; use no ZIP compression.
  
! '-v'
       Generate verbose output on standard output.
  
! '-M'
       Do not create a manifest file for the entries.
  
! '-m MANIFEST'
       Include manifest information from specified MANIFEST file.
  
     File name selection:
  
! '-C DIR FILE'
       Change to the DIR and include the following FILE.
  
! '-@'
       Read the names of the files to add to the archive from stdin.  This
!      option is supported only in combination with '-c' or '-u'.  Non
       standard option added in the GCC version.
  
     Standard options:
  
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
*************** the same order the `-m' and `-f' flags a
*** 1436,1497 ****
  
  File: cp-tools.info,  Node: javah Tool,  Next: gcjh Tool,  Prev: jar Tool,  Up: Other Tools
  
! 3.2 The `javah' Tool
  ====================
  
! The `gjavah' program is used to generate header files from class files.
  It can generate both CNI and JNI header files, as well as stub
  implementation files which can be used as a basis for implementing the
  required native methods.
  
! `-d DIR'
       Set output directory.
  
! `-o FILE'
!      Set output file (only one of `-d' or `-o' may be used).
  
! `-cmdfile FILE'
       Read command file.
  
! `-all DIR'
       Operate on all class files under directory DIR.
  
! `-stubs'
       Emit stub implementation.
  
! `-jni'
       Emit JNI stubs or header (default).
  
! `-cni'
       Emit CNI stubs or header (default JNI).
  
! `-verbose'
       Set verbose mode.
  
! `-force'
       Output files should always be written.
  
     Class path options:
! `-classpath PATH'
       Set the class path.
  
! `-IDIR'
       Add directory to class path.
  
! `-bootclasspath PATH'
       Set the boot class path.
  
! `-extdirs PATH'
       Set the extension directory path.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), ...
--- 1408,1467 ----
  
  File: cp-tools.info,  Node: javah Tool,  Next: gcjh Tool,  Prev: jar Tool,  Up: Other Tools
  
! 3.2 The 'javah' Tool
  ====================
  
! The 'gjavah' program is used to generate header files from class files.
  It can generate both CNI and JNI header files, as well as stub
  implementation files which can be used as a basis for implementing the
  required native methods.
  
! '-d DIR'
       Set output directory.
  
! '-o FILE'
!      Set output file (only one of '-d' or '-o' may be used).
  
! '-cmdfile FILE'
       Read command file.
  
! '-all DIR'
       Operate on all class files under directory DIR.
  
! '-stubs'
       Emit stub implementation.
  
! '-jni'
       Emit JNI stubs or header (default).
  
! '-cni'
       Emit CNI stubs or header (default JNI).
  
! '-verbose'
       Set verbose mode.
  
! '-force'
       Output files should always be written.
  
     Class path options:
! '-classpath PATH'
       Set the class path.
  
! '-IDIR'
       Add directory to class path.
  
! '-bootclasspath PATH'
       Set the boot class path.
  
! '-extdirs PATH'
       Set the extension directory path.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), ...
*************** required native methods.
*** 1499,1545 ****
  
  File: cp-tools.info,  Node: gcjh Tool,  Next: native2ascii Tool,  Prev: javah Tool,  Up: Other Tools
  
! 3.3 The `gcjh' Tool
  ===================
  
! The `gcjh' program is used to generate header files from class files.
  It can generate both CNI and JNI header files, as well as stub
  implementation files which can be used as a basis for implementing the
! required native methods.  It is similar to `javah' but has slightly
  different command line options, and defaults to CNI.
  
!    See `javah' for a full description; this page only lists the
! additional options provided by `gcjh'.
  
     CNI text options
! `-add TEXT'
       Insert TEXT into class body.
! 
! `-append TEXT'
       Append TEXT after class declaration.
! 
! `-friend TEXT'
!      Insert TEXT as a `friend' declaration.
! 
! `-prepend TEXT'
       Insert TEXT before start of class.
  
     Compatibility options (unused)
! `-td DIR'
! `-M'
! `-MM'
! `-MD'
! `-MMD'
       Unused compatibility option.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), javah(1), ...
--- 1469,1510 ----
  
  File: cp-tools.info,  Node: gcjh Tool,  Next: native2ascii Tool,  Prev: javah Tool,  Up: Other Tools
  
! 3.3 The 'gcjh' Tool
  ===================
  
! The 'gcjh' program is used to generate header files from class files.
  It can generate both CNI and JNI header files, as well as stub
  implementation files which can be used as a basis for implementing the
! required native methods.  It is similar to 'javah' but has slightly
  different command line options, and defaults to CNI.
  
!    See 'javah' for a full description; this page only lists the
! additional options provided by 'gcjh'.
  
     CNI text options
! '-add TEXT'
       Insert TEXT into class body.
! '-append TEXT'
       Append TEXT after class declaration.
! '-friend TEXT'
!      Insert TEXT as a 'friend' declaration.
! '-prepend TEXT'
       Insert TEXT before start of class.
  
     Compatibility options (unused)
! '-td DIR'
! '-M'
! '-MM'
! '-MD'
! '-MMD'
       Unused compatibility option.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), javah(1), ...
*************** additional options provided by `gcjh'.
*** 1547,1571 ****
  
  File: cp-tools.info,  Node: native2ascii Tool,  Next: orbd Tool,  Prev: gcjh Tool,  Up: Other Tools
  
! 3.4 The `native2ascii' Tool
  ===========================
  
  To be written ...
  
! `-encoding NAME'
       Set the encoding to use.
  
! `-reversed'
       Convert from encoding to native.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), ...
--- 1512,1534 ----
  
  File: cp-tools.info,  Node: native2ascii Tool,  Next: orbd Tool,  Prev: gcjh Tool,  Up: Other Tools
  
! 3.4 The 'native2ascii' Tool
  ===========================
  
  To be written ...
  
! '-encoding NAME'
       Set the encoding to use.
  
! '-reversed'
       Convert from encoding to native.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), ...
*************** To be written ...
*** 1573,1604 ****
  
  File: cp-tools.info,  Node: orbd Tool,  Next: serialver Tool,  Prev: native2ascii Tool,  Up: Other Tools
  
! 3.5 The `orbd' object request broker daemon
  ===========================================
  
  To be written ...
  
! `-ORBInitialPort PORT'
       Port on which persistent naming service is to be started.
  
! `-ior FILE'
       File in which to store persistent naming service's IOR reference
  
! `-directory DIR'
       Directory in which to store persistent data.
  
! `-restart'
       Restart persistent naming service, clearing persistent naming
       database.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
--- 1536,1565 ----
  
  File: cp-tools.info,  Node: orbd Tool,  Next: serialver Tool,  Prev: native2ascii Tool,  Up: Other Tools
  
! 3.5 The 'orbd' object request broker daemon
  ===========================================
  
  To be written ...
  
! '-ORBInitialPort PORT'
       Port on which persistent naming service is to be started.
  
! '-ior FILE'
       File in which to store persistent naming service's IOR reference
  
! '-directory DIR'
       Directory in which to store persistent data.
  
! '-restart'
       Restart persistent naming service, clearing persistent naming
       database.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
*************** To be written ...
*** 1606,1627 ****
  
  File: cp-tools.info,  Node: serialver Tool,  Next: rmid Tool,  Prev: orbd Tool,  Up: Other Tools
  
! 3.6 The `serialver' version command
  ===================================
  
  Print the serialVersionUID of the specified classes.
  
! `-classpath PATH'
       Class path to use to find classes.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), ...
--- 1567,1586 ----
  
  File: cp-tools.info,  Node: serialver Tool,  Next: rmid Tool,  Prev: orbd Tool,  Up: Other Tools
  
! 3.6 The 'serialver' version command
  ===================================
  
  Print the serialVersionUID of the specified classes.
  
! '-classpath PATH'
       Class path to use to find classes.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     javac(1), ...
*************** Print the serialVersionUID of the specif
*** 1629,1670 ****
  
  File: cp-tools.info,  Node: rmid Tool,  Next: rmiregistry Tool,  Prev: serialver Tool,  Up: Other Tools
  
! 3.7 The `rmid' RMI activation system daemon
  ===========================================
  
! `rmiregistry' starts a remote object registry on the current host.  If
  no port number is specified, then port 1099 is used.
  
     Activation process control:
! `-port PORT'
       Port on which activation system is to be started.
  
! `-restart'
       Restart activation system, clearing persistent naming database, if
       any.
  
! `-stop'
       Stop activation system.
  
     Persistence:
! `-persistent'
       Make activation system persistent.
  
! `-directory DIR'
       Directory in which to store persistent data.
  
     Debugging:
! `-verbose'
       Log binding events to standard out.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
--- 1588,1627 ----
  
  File: cp-tools.info,  Node: rmid Tool,  Next: rmiregistry Tool,  Prev: serialver Tool,  Up: Other Tools
  
! 3.7 The 'rmid' RMI activation system daemon
  ===========================================
  
! 'rmiregistry' starts a remote object registry on the current host.  If
  no port number is specified, then port 1099 is used.
  
     Activation process control:
! '-port PORT'
       Port on which activation system is to be started.
  
! '-restart'
       Restart activation system, clearing persistent naming database, if
       any.
  
! '-stop'
       Stop activation system.
  
     Persistence:
! '-persistent'
       Make activation system persistent.
  
! '-directory DIR'
       Directory in which to store persistent data.
  
     Debugging:
! '-verbose'
       Log binding events to standard out.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
*************** no port number is specified, then port 1
*** 1672,1710 ****
  
  File: cp-tools.info,  Node: rmiregistry Tool,  Next: tnameserv Tool,  Prev: rmid Tool,  Up: Other Tools
  
! 3.8 The `rmiregistry' Tool
  ==========================
  
! `grmiregistry' starts a remote object registry on the current host.  If
  no port number is specified, then port 1099 is used.
  
     Registry process control:
! `-restart'
       Restart RMI naming service, clearing persistent naming database, if
       any.
  
! `-stop'
       Stop RMI naming service.
  
     Persistence:
! `-persistent'
       Make RMI naming service persistent.
  
! `-directory DIR'
       Directory in which to store persistent data.
  
     Debugging:
! `-verbose'
       Log binding events to standard out.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
--- 1629,1665 ----
  
  File: cp-tools.info,  Node: rmiregistry Tool,  Next: tnameserv Tool,  Prev: rmid Tool,  Up: Other Tools
  
! 3.8 The 'rmiregistry' Tool
  ==========================
  
! 'grmiregistry' starts a remote object registry on the current host.  If
  no port number is specified, then port 1099 is used.
  
     Registry process control:
! '-restart'
       Restart RMI naming service, clearing persistent naming database, if
       any.
  
! '-stop'
       Stop RMI naming service.
  
     Persistence:
! '-persistent'
       Make RMI naming service persistent.
  
! '-directory DIR'
       Directory in which to store persistent data.
  
     Debugging:
! '-verbose'
       Log binding events to standard out.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
*************** no port number is specified, then port 1
*** 1712,1742 ****
  
  File: cp-tools.info,  Node: tnameserv Tool,  Next: gjdoc Tool,  Prev: rmiregistry Tool,  Up: Other Tools
  
! 3.9 The `tnameserv' Tool
  ========================
  
  To be written ...
  
! `-ORBInitialPort PORT'
       Port on which naming service is to be started.
  
! `-ior FILE'
       File in which to store naming service's IOR reference.
  
     Standard options:
! `-help'
       Print help text, then exit.
! 
! `-version'
       Print version number, then exit.
! 
! `-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
  
!    Info entry for `gjdoc'.  Please report bugs to
! `http://savannah.gnu.org/bugs/?group=classpath'.  Julian Scheid
  
  
  File: cp-tools.info,  Node: gjdoc Tool,  Prev: tnameserv Tool,  Up: Other Tools
--- 1667,1695 ----
  
  File: cp-tools.info,  Node: tnameserv Tool,  Next: gjdoc Tool,  Prev: rmiregistry Tool,  Up: Other Tools
  
! 3.9 The 'tnameserv' Tool
  ========================
  
  To be written ...
  
! '-ORBInitialPort PORT'
       Port on which naming service is to be started.
  
! '-ior FILE'
       File in which to store naming service's IOR reference.
  
     Standard options:
! '-help'
       Print help text, then exit.
! '-version'
       Print version number, then exit.
! '-JOPTION'
       Pass argument to the Java runtime.
  
     java(1), ...
  
!    Info entry for 'gjdoc'.  Please report bugs to
! <http://savannah.gnu.org/bugs/?group=classpath>.  Julian Scheid
  
  
  File: cp-tools.info,  Node: gjdoc Tool,  Prev: tnameserv Tool,  Up: Other Tools
*************** File: cp-tools.info,  Node: gjdoc Tool,
*** 1745,1760 ****
  *******************************
  
  Gjdoc can be used in two ways: as a stand-alone documentation tool, or
! as a driver for a user-specified Doclet. *Note Other Doclets::.
  
!    In the default mode, Gjdoc will use the Standard Doclet `HtmlDoclet'
  to generate a set of HTML pages.  The canonical usage is:
  
       gjdoc -s src/java/ -all -d api-docs/
  
!    Here, `src/java/' is the root of your source code class hierarchy,
! `-all' means that all valid Java files found under this root directory
! should be processed, and `api-docs/' is the directory where the
  generated documentation should be placed.
  
     To learn more about running Doclets other than the Standard Doclet,
--- 1698,1713 ----
  *******************************
  
  Gjdoc can be used in two ways: as a stand-alone documentation tool, or
! as a driver for a user-specified Doclet.  *Note Other Doclets::.
  
!    In the default mode, Gjdoc will use the Standard Doclet 'HtmlDoclet'
  to generate a set of HTML pages.  The canonical usage is:
  
       gjdoc -s src/java/ -all -d api-docs/
  
!    Here, 'src/java/' is the root of your source code class hierarchy,
! '-all' means that all valid Java files found under this root directory
! should be processed, and 'api-docs/' is the directory where the
  generated documentation should be placed.
  
     To learn more about running Doclets other than the Standard Doclet,
*************** File: cp-tools.info,  Node: Invoking the
*** 1792,1798 ****
  4.1 Invoking the Standard Doclet
  ================================
  
! Running the Gjdoc Standard Doclet `HtmlDoclet' is the default mode of
  operation for Gjdoc.  This section lists the command line options you
  can specify in this mode.  It doesn't distinguish between general Gjdoc
  options and options specific to the Standard Doclet.
--- 1745,1751 ----
  4.1 Invoking the Standard Doclet
  ================================
  
! Running the Gjdoc Standard Doclet 'HtmlDoclet' is the default mode of
  operation for Gjdoc.  This section lists the command line options you
  can specify in this mode.  It doesn't distinguish between general Gjdoc
  options and options specific to the Standard Doclet.
*************** Here is a summary of all the options of
*** 1824,1831 ****
  Doclet, grouped by type.  Explanations are in the following sections.
  
  _Source Set Options_
!      *Note Options For Specifying the Source Files To Operate on:
!      Source Set Options.
            -sourcepath PATHLIST  -subpackages PKGLIST  -exclude PKGLIST
  
  _Source Format Options_
--- 1777,1784 ----
  Doclet, grouped by type.  Explanations are in the following sections.
  
  _Source Set Options_
!      *Note Options For Specifying the Source Files To Operate on: Source
!      Set Options.
            -sourcepath PATHLIST  -subpackages PKGLIST  -exclude PKGLIST
  
  _Source Format Options_
*************** _Virtual Machine Options_
*** 1874,1880 ****
       *Note Options Controlling Gjdoc Behavior: Virtual Machine Options.
            -classpath  -bootclasspath  -J VMOPT
  
- 
  * Menu:
  
  * Virtual Machine Options::     Controlling the kind of output:
--- 1827,1832 ----
*************** File: cp-tools.info,  Node: Source Set O
*** 1887,1934 ****
  4.3 Selecting which Source Files to Process
  ===========================================
  
! `-s PATHLIST'
! 
! `-sourcepath PATHLIST'
       Look for source files in the specified directory or directories.
  
       PATHLIST should be one or more directory paths separated by your
!      platform's path separator (usually `:' or `;').
  
!      If this option is not given, `gjdoc' will look for source files in
       the current directory.
  
       The directories specified should be root directories in terms of
       the Java package system.  For example, if you want to generate
!      documentation for classes in package `foo.bar', you must specify
!      the directory containing the top-level ``foo'' sub-directory, not
!      the directory ``foo/bar/'' in which the Java source files reside.
  
!      The short-hand alias `-s' is specific to `gjdoc' and not
!      compatible to Sun `javadoc'.
  
! `-all'
       _[EXPERIMENTAL]_ Process all valid Java source files found in the
       directories listed in the source path and their sub-directories.
  
!      This is an option specific to `gjdoc' and not compatible to Sun
!      `javadoc'.
  
! `-subpackages PKG:PKG:...'
       Process the classes in the given Java packages and all
       sub-packages, recursively.  Note that multiple package names must
       be separated with colons instead of whitespace.
  
! `-exclude PKG:PKG:...'
       Do not process classes in the given Java packages and all
       sub-packages, recursively.  This option can be used in conjunction
!      with `-all' or `-subpackages' in order to exclude individual
       packages or package sub-trees from the output.
  
! `PACKAGES...'
       Process all classes in the given Java packages.
  
! `SOURCEFILES...'
       Process the classes in the given Java source files.
  
  
--- 1839,1885 ----
  4.3 Selecting which Source Files to Process
  ===========================================
  
! '-s PATHLIST'
! '-sourcepath PATHLIST'
       Look for source files in the specified directory or directories.
  
       PATHLIST should be one or more directory paths separated by your
!      platform's path separator (usually ':' or ';').
  
!      If this option is not given, 'gjdoc' will look for source files in
       the current directory.
  
       The directories specified should be root directories in terms of
       the Java package system.  For example, if you want to generate
!      documentation for classes in package 'foo.bar', you must specify
!      the directory containing the top-level ''foo'' sub-directory, not
!      the directory ''foo/bar/'' in which the Java source files reside.
  
!      The short-hand alias '-s' is specific to 'gjdoc' and not compatible
!      to Sun 'javadoc'.
  
! '-all'
       _[EXPERIMENTAL]_ Process all valid Java source files found in the
       directories listed in the source path and their sub-directories.
  
!      This is an option specific to 'gjdoc' and not compatible to Sun
!      'javadoc'.
  
! '-subpackages PKG:PKG:...'
       Process the classes in the given Java packages and all
       sub-packages, recursively.  Note that multiple package names must
       be separated with colons instead of whitespace.
  
! '-exclude PKG:PKG:...'
       Do not process classes in the given Java packages and all
       sub-packages, recursively.  This option can be used in conjunction
!      with '-all' or '-subpackages' in order to exclude individual
       packages or package sub-trees from the output.
  
! 'PACKAGES...'
       Process all classes in the given Java packages.
  
! 'SOURCEFILES...'
       Process the classes in the given Java source files.
  
  
*************** File: cp-tools.info,  Node: Source Forma
*** 1937,1972 ****
  4.4 Specifying the Format of Input Files
  ========================================
  
! `-source RELEASE'
       Assume that the source files are targeted at the given release of
       the Java platform.
  
       RELEASE should be the version number of a Java platform release in
!      the format MAJOR.MINOR, for example `1.4'.
  
       This option is currently ignored except that an error is raised if
!      a release number other than `1.2', `1.3' or `1.4' is specified.
  
! `-encoding CHARSET'
       Assume that the source files are encoded using CHARSET.
  
!      Examples for CHARSET are `US-ASCII', `ISO-8859-1' or `UTF-8'.
  
       The semantics of CHARSET are identical to those of
!      `java.nio.charset.Charset.forName(String)'.
  
! `-breakiterator'
       Use the locale's java.text.BreakIterator instead of the internal
       first sentence detector.
  
!      By default, `gjdoc' uses an internal algorithm to determine where
!      a sentence ends. When this option is given, it will instead use
!      the `java.text.BreakIterator' instance for the locale given with
!      `-locale' (or the default locale).
  
!      This option should be specified when applying `gjdoc' to source
       code commented in a non-latin language for which the default first
!      sentence detector does not work. For all other cases, the default
       (do not use BreakIterator) produces better results at the time of
       this writing.
  
--- 1888,1923 ----
  4.4 Specifying the Format of Input Files
  ========================================
  
! '-source RELEASE'
       Assume that the source files are targeted at the given release of
       the Java platform.
  
       RELEASE should be the version number of a Java platform release in
!      the format MAJOR.MINOR, for example '1.4'.
  
       This option is currently ignored except that an error is raised if
!      a release number other than '1.2', '1.3' or '1.4' is specified.
  
! '-encoding CHARSET'
       Assume that the source files are encoded using CHARSET.
  
!      Examples for CHARSET are 'US-ASCII', 'ISO-8859-1' or 'UTF-8'.
  
       The semantics of CHARSET are identical to those of
!      'java.nio.charset.Charset.forName(String)'.
  
! '-breakiterator'
       Use the locale's java.text.BreakIterator instead of the internal
       first sentence detector.
  
!      By default, 'gjdoc' uses an internal algorithm to determine where a
!      sentence ends.  When this option is given, it will instead use the
!      'java.text.BreakIterator' instance for the locale given with
!      '-locale' (or the default locale).
  
!      This option should be specified when applying 'gjdoc' to source
       code commented in a non-latin language for which the default first
!      sentence detector does not work.  For all other cases, the default
       (do not use BreakIterator) produces better results at the time of
       this writing.
  
*************** File: cp-tools.info,  Node: Interlinking
*** 1976,2065 ****
  4.5 Interlinking with other Documentation Sets
  ==============================================
  
! `-link URL'
       Create hyperlinks to another documentation set.
  
!      By default, `gjdoc' will only create hyperlinks to classes in the
       source set.  Use this option to additionally create hyperlinks to
       classes covered by the specified documentation set.
  
!      URL should be the root URL of the other documentation set. For
       example, to add hyperlinks to GNU Classpath, specify the following:
  
            -link http://developer.classpath.org/doc/
  
!      The `-link' option can be specified multiple times.
  
!      Note that specifying the `-link' option will cause an HTTP access
!      every time gjdoc is invoked. You can use `-linkoffline' instead to
       avoid this access.
  
! `-linkoffline URL FILE'
       Create hyperlinks to another documentation set which is also
       present on the local file system.
  
!      This option works exactly like `-link', except that it accesses
!      the local file system instead of the network for determining which
       classes are covered by the linked documentation set.
  
!      When using `-linkoffline' the remote documentation set is not
       accessed at all, which can significantly speed up generation time
       depending on your network connection.  The generated hyperlinks to
       the documentation set however refer to the remote set, not to the
!      local one, so that you can distribute the documentation without
!      any further dependencies.
  
!      The `-linkoffline' option can be specified multiple times.
  
- `-noqualifier PKG:PKG:...'
       Do not qualify names of classes in the given packages with their
       package name.
  
!      By default, a class name is displayed unqualified only if the
!      class is part of the source set or a linked documentation set, and
       qualified with the name of its containing package if it is not.
!      You can use this option to force unqualified names for classes
!      even if they are not part of the documentation set.
  
       For example, usually a reference to the String class is represented
!      fully-qualified as `java.lang.String' (unless you link to the
!      appropriate documentation set using `-link') because it isn't part
!      of the documentation set.  You can specify `-noqualifier
!      java.lang' to render the same references just as `String'.
  
       Note that for all unqualified class names, a tooltip is provided
       when you place your mouse pointer over it in the HTML
       documentation.
  
! `-noqualifier `all''
       Omit package name qualifier from all class names.
  
       Specify this option to omit package name qualifiers altogether,
  
- 
  
  File: cp-tools.info,  Node: Generation Options,  Next: Decoration Options,  Prev: Output Control Options,  Up: gjdoc Tool
  
  4.6 Selecting which Information to Generate
  ===========================================
  
! `-public'
       Only include public members of public classes in the output.  By
       default, protected class members are included as well.
  
! `-protected'
       Include public or protected members of public classes in the
       output.  This is the default.
  
! `-package'
       Include public, protected and package-private members of public and
       package-private classes.
  
! `-private'
       Include all classes and class members regardless of their access
       level.
  
! `-splitindex'
       Generate one index page per letter instead of a single, monolithic
       index page.
  
--- 1927,2021 ----
  4.5 Interlinking with other Documentation Sets
  ==============================================
  
! '-link URL'
! 
       Create hyperlinks to another documentation set.
  
!      By default, 'gjdoc' will only create hyperlinks to classes in the
       source set.  Use this option to additionally create hyperlinks to
       classes covered by the specified documentation set.
  
!      URL should be the root URL of the other documentation set.  For
       example, to add hyperlinks to GNU Classpath, specify the following:
  
            -link http://developer.classpath.org/doc/
  
!      The '-link' option can be specified multiple times.
  
!      Note that specifying the '-link' option will cause an HTTP access
!      every time gjdoc is invoked.  You can use '-linkoffline' instead to
       avoid this access.
  
! '-linkoffline URL FILE'
! 
       Create hyperlinks to another documentation set which is also
       present on the local file system.
  
!      This option works exactly like '-link', except that it accesses the
!      local file system instead of the network for determining which
       classes are covered by the linked documentation set.
  
!      When using '-linkoffline' the remote documentation set is not
       accessed at all, which can significantly speed up generation time
       depending on your network connection.  The generated hyperlinks to
       the documentation set however refer to the remote set, not to the
!      local one, so that you can distribute the documentation without any
!      further dependencies.
  
!      The '-linkoffline' option can be specified multiple times.
! 
! '-noqualifier PKG:PKG:...'
  
       Do not qualify names of classes in the given packages with their
       package name.
  
!      By default, a class name is displayed unqualified only if the class
!      is part of the source set or a linked documentation set, and
       qualified with the name of its containing package if it is not.
!      You can use this option to force unqualified names for classes even
!      if they are not part of the documentation set.
  
       For example, usually a reference to the String class is represented
!      fully-qualified as 'java.lang.String' (unless you link to the
!      appropriate documentation set using '-link') because it isn't part
!      of the documentation set.  You can specify '-noqualifier java.lang'
!      to render the same references just as 'String'.
  
       Note that for all unqualified class names, a tooltip is provided
       when you place your mouse pointer over it in the HTML
       documentation.
  
! '-noqualifier 'all''
       Omit package name qualifier from all class names.
  
       Specify this option to omit package name qualifiers altogether,
  
  
  File: cp-tools.info,  Node: Generation Options,  Next: Decoration Options,  Prev: Output Control Options,  Up: gjdoc Tool
  
  4.6 Selecting which Information to Generate
  ===========================================
  
! '-public'
       Only include public members of public classes in the output.  By
       default, protected class members are included as well.
  
! '-protected'
! 
       Include public or protected members of public classes in the
       output.  This is the default.
  
! '-package'
! 
       Include public, protected and package-private members of public and
       package-private classes.
  
! '-private'
! 
       Include all classes and class members regardless of their access
       level.
  
! '-splitindex'
       Generate one index page per letter instead of a single, monolithic
       index page.
  
*************** File: cp-tools.info,  Node: Generation O
*** 2067,2081 ****
       entries on a single page.  This is fine for small documentation
       sets, but for large sets you should specify this option.
  
! `-nosince'
!      Ignore `@since' tags in javadoc comments.
  
       By default, the generated output contains sections listing the
       version of your API since which the package, class or class member
       in question exists when this tag is encountered.  Specify this
       option to omit this information.
  
! `-notree'
       Do not generate any tree pages.
  
       By default, the generated output includes one inheritance tree per
--- 2023,2037 ----
       entries on a single page.  This is fine for small documentation
       sets, but for large sets you should specify this option.
  
! '-nosince'
!      Ignore '@since' tags in javadoc comments.
  
       By default, the generated output contains sections listing the
       version of your API since which the package, class or class member
       in question exists when this tag is encountered.  Specify this
       option to omit this information.
  
! '-notree'
       Do not generate any tree pages.
  
       By default, the generated output includes one inheritance tree per
*************** File: cp-tools.info,  Node: Generation O
*** 2083,2089 ****
       packages - a page with the full inheritance tree.  Specify this
       option to omit generation of these pages.
  
! `-noindex'
       Do not output the alphabetical index.
  
       By default, gjdoc generates an alphabetical index of all program
--- 2039,2045 ----
       packages - a page with the full inheritance tree.  Specify this
       option to omit generation of these pages.
  
! '-noindex'
       Do not output the alphabetical index.
  
       By default, gjdoc generates an alphabetical index of all program
*************** File: cp-tools.info,  Node: Generation O
*** 2091,2111 ****
       classes, constructors, methods, and fields).  Specify this option
       to omit this information.
  
! `-nohelp'
       Do not generate the help page.
  
       This option is currently ignored as the Standard Doclet doesn't
       provide a help page.
  
! `-nodeprecated'
!      Do not output inline information about deprecated packages,
!      classes or class members.
  
       By default, the Standard Doclet adds a highlighted paragraph with
       deprecation information to the description of each deprecated
       program element.  Specify this option to omit this information.
  
! `-nodeprecatedlist'
       Do not output the summary page for deprecated API elements.
  
       By default, the Standard Doclet generates a page listing all
--- 2047,2067 ----
       classes, constructors, methods, and fields).  Specify this option
       to omit this information.
  
! '-nohelp'
       Do not generate the help page.
  
       This option is currently ignored as the Standard Doclet doesn't
       provide a help page.
  
! '-nodeprecated'
!      Do not output inline information about deprecated packages, classes
!      or class members.
  
       By default, the Standard Doclet adds a highlighted paragraph with
       deprecation information to the description of each deprecated
       program element.  Specify this option to omit this information.
  
! '-nodeprecatedlist'
       Do not output the summary page for deprecated API elements.
  
       By default, the Standard Doclet generates a page listing all
*************** File: cp-tools.info,  Node: Generation O
*** 2113,2119 ****
       usually includes the reason for deprecation and possible
       alternatives.  Specify this option to omit this information.
  
! `-nonavbar'
       Do not output the navigation bar, header, and footer.
  
       By default, each output page is equipped with a top navigation bar
--- 2069,2075 ----
       usually includes the reason for deprecation and possible
       alternatives.  Specify this option to omit this information.
  
! '-nonavbar'
       Do not output the navigation bar, header, and footer.
  
       By default, each output page is equipped with a top navigation bar
*************** File: cp-tools.info,  Node: Generation O
*** 2121,2205 ****
       bar (which may include a user-specified footer).  Specify this
       option to omit this decoration.
  
! `-nocomment'
       Omit all documentation text from the generated files and output
       only declarations and program element relationships.
  
!      This option is here for compatibility with `javadoc'.  If you plan
!      on extracting information about your project via `gjdoc', you
!      should consider using a different Doclet for your purposes
!      instead, for example XmlDoclet.  You could also use the Doclet API
!      directly by implementing a new Doclet.
  
- `-linksource'
       Generate a page with syntax-highlighted source code for each class.
       By default, this page is not generated.
  
       The source code can be accessed by clicking on the button labelled
       "Source" in the navigation bar, or by clicking on the name of a
!      constructor, field, method, or inner class in the detail section
!      of a class documentation page.
  
! `-use'
!      Generate a page with cross-reference information. By default, this
       page is not generated.
  
       The cross-reference information can be accessed by clicking on the
!      button labelled `Use' in the navigation bar.
  
!      The `Use' page lists all classes/interfaces in the documentation
       set that extend/implement the class (type) in question; fields of
       the type; methods or constructors accepting a parameter of the
       type; methods returning the type; and methods or constructors
       throwing the type.
  
! `-author'
       Include author information in the output.
  
!      When specified, author information as specified using the
!      `@author' tag in javadoc comments is incorporated into the output.
!      By default, `@author' tags are ignored.
  
! `-version'
       Include version information in the output.
  
       When specified, version information as specified using the
!      `@version' tag in javadoc comments is incorporated into the
!      output. By default, `@version' tags are ignored.
  
- `-licensetext'
       Assume that the first comment in each source file contains the
       license text, and add license information to the footer of each
       generated class page.
  
!      This is an option specific to `gjdoc' and not compatible to Sun
!      `javadoc'.
  
       This option is intended for use with free and open source projects
       where source code is typically prefixed with a boilerplate license
       comment, when there are legal reasons for including the license in
       the documentation.
  
! `-docfilessubdirs'
!      Recursively copy all files in the `doc-files' sub-directory of each
       package directory.
  
!      Usually, only the files in the `doc-files' sub-directory are copied
       without descending recursively.
  
       *Note Adding Custom Resources::.
  
! `-excludedocfilessubdir NAME:NAME:...'
!      Do not copy some directories directly under the `doc-files'
       sub-directories when descending recursively.
  
       The argument to this option should be a colon-separated list of
       directory names.
  
!      This option only makes sense if `-docfilessubdirs' is also
       specified.  In this case, any sub-directory located directly
!      beneath a `doc-files' directory is omitted if listed.
! 
  
  
  File: cp-tools.info,  Node: Taglet Options,  Next: Virtual Machine Options,  Prev: Decoration Options,  Up: gjdoc Tool
--- 2077,2166 ----
       bar (which may include a user-specified footer).  Specify this
       option to omit this decoration.
  
! '-nocomment'
! 
       Omit all documentation text from the generated files and output
       only declarations and program element relationships.
  
!      This option is here for compatibility with 'javadoc'.  If you plan
!      on extracting information about your project via 'gjdoc', you
!      should consider using a different Doclet for your purposes instead,
!      for example XmlDoclet.  You could also use the Doclet API directly
!      by implementing a new Doclet.
! 
! '-linksource'
  
       Generate a page with syntax-highlighted source code for each class.
       By default, this page is not generated.
  
       The source code can be accessed by clicking on the button labelled
       "Source" in the navigation bar, or by clicking on the name of a
!      constructor, field, method, or inner class in the detail section of
!      a class documentation page.
  
! '-use'
! 
!      Generate a page with cross-reference information.  By default, this
       page is not generated.
  
       The cross-reference information can be accessed by clicking on the
!      button labelled 'Use' in the navigation bar.
  
!      The 'Use' page lists all classes/interfaces in the documentation
       set that extend/implement the class (type) in question; fields of
       the type; methods or constructors accepting a parameter of the
       type; methods returning the type; and methods or constructors
       throwing the type.
  
! '-author'
       Include author information in the output.
  
!      When specified, author information as specified using the '@author'
!      tag in javadoc comments is incorporated into the output.  By
!      default, '@author' tags are ignored.
  
! '-version'
       Include version information in the output.
  
       When specified, version information as specified using the
!      '@version' tag in javadoc comments is incorporated into the output.
!      By default, '@version' tags are ignored.
! 
! '-licensetext'
  
       Assume that the first comment in each source file contains the
       license text, and add license information to the footer of each
       generated class page.
  
!      This is an option specific to 'gjdoc' and not compatible to Sun
!      'javadoc'.
  
       This option is intended for use with free and open source projects
       where source code is typically prefixed with a boilerplate license
       comment, when there are legal reasons for including the license in
       the documentation.
  
! '-docfilessubdirs'
! 
!      Recursively copy all files in the 'doc-files' sub-directory of each
       package directory.
  
!      Usually, only the files in the 'doc-files' sub-directory are copied
       without descending recursively.
  
       *Note Adding Custom Resources::.
  
! '-excludedocfilessubdir NAME:NAME:...'
! 
!      Do not copy some directories directly under the 'doc-files'
       sub-directories when descending recursively.
  
       The argument to this option should be a colon-separated list of
       directory names.
  
!      This option only makes sense if '-docfilessubdirs' is also
       specified.  In this case, any sub-directory located directly
!      beneath a 'doc-files' directory is omitted if listed.
  
  
  File: cp-tools.info,  Node: Taglet Options,  Next: Virtual Machine Options,  Prev: Decoration Options,  Up: gjdoc Tool
*************** File: cp-tools.info,  Node: Taglet Optio
*** 2207,2238 ****
  4.7 Custom Documentation Tags
  =============================
  
! `-tagletpath PATHLIST'
       Search PATHLIST when loading subsequent Taglet classes specified
!      using `-taglet'.
  
       PATHLIST should be one or more paths to a directory or jar file,
!      separated by your platform's path separator (usually `:' or `;').
  
! `-taglet CLASSNAME'
       Register a Taglet.
  
       CLASSNAME should be the fully-qualified name of a Java class
!      implementing `com.sun.tools.doclets.Taglet'.
  
       The Taglet classes will be loaded from the classpath specified
!      using `-tagletpath', from the classpath specified using
!      `-classpath' and from the default classpath.
  
!      See the documentation of `com.sun.tools.doclets.Taglet' for
!      further information.
  
!      Note that for simple tags, there is also `-tag'.
  
! `-tag TAGSPEC'
       Register a generic Taglet.
  
!      The format of TAGSPEC must be `<tagname>:<flags>:"<taghead>"'.
  
       TAGNAME is the tag name to match, without the leading @ sign.
  
--- 2168,2199 ----
  4.7 Custom Documentation Tags
  =============================
  
! '-tagletpath PATHLIST'
       Search PATHLIST when loading subsequent Taglet classes specified
!      using '-taglet'.
  
       PATHLIST should be one or more paths to a directory or jar file,
!      separated by your platform's path separator (usually ':' or ';').
  
! '-taglet CLASSNAME'
       Register a Taglet.
  
       CLASSNAME should be the fully-qualified name of a Java class
!      implementing 'com.sun.tools.doclets.Taglet'.
  
       The Taglet classes will be loaded from the classpath specified
!      using '-tagletpath', from the classpath specified using
!      '-classpath' and from the default classpath.
  
!      See the documentation of 'com.sun.tools.doclets.Taglet' for further
!      information.
  
!      Note that for simple tags, there is also '-tag'.
  
! '-tag TAGSPEC'
       Register a generic Taglet.
  
!      The format of TAGSPEC must be '<tagname>:<flags>:"<taghead>"'.
  
       TAGNAME is the tag name to match, without the leading @ sign.
  
*************** File: cp-tools.info,  Node: Taglet Optio
*** 2240,2276 ****
       character specifies a source code context in which the tag is to be
       recognized.
  
!     `a'
            all contexts
! 
!     `c'
            constructors
! 
!     `f'
            fields
! 
!     `m'
            methods
! 
!     `o'
            overview
! 
!     `p'
            packages
! 
!     `t'
            types (classes, interfaces, exceptions, errors)
! 
!     `X'
            special character which temporarily disables the Taglet
            altogether.
  
       TAGHEAD is the string to display in the header of the section
       devoted to the tag in question.
  
!      For example, to define a tag matching `@cvsid' which is to be
       accepted in overview, package and type pages and which is labelled
!      with the header `CVS ID', you would specify:
  
            -tag cvsid:tpo:"CVS ID"
  
--- 2201,2230 ----
       character specifies a source code context in which the tag is to be
       recognized.
  
!      'a'
            all contexts
!      'c'
            constructors
!      'f'
            fields
!      'm'
            methods
!      'o'
            overview
!      'p'
            packages
!      't'
            types (classes, interfaces, exceptions, errors)
!      'X'
            special character which temporarily disables the Taglet
            altogether.
  
       TAGHEAD is the string to display in the header of the section
       devoted to the tag in question.
  
!      For example, to define a tag matching '@cvsid' which is to be
       accepted in overview, package and type pages and which is labelled
!      with the header 'CVS ID', you would specify:
  
            -tag cvsid:tpo:"CVS ID"
  
*************** File: cp-tools.info,  Node: Doclet Optio
*** 2289,2329 ****
  4.8 Running Other Doclets
  =========================
  
! `-docletpath PATHLIST'
!      Search PATHLIST when loading classes for the Doclet specified
!      using `-doclet'.
  
       PATHLIST should be one or more paths to a directory or jar file,
!      separated by your platform's path separator (usually `:' or `;').
  
! `-doclet CLASSNAME'
       Run the specified doclet instead of the standard HtmlDoclet.
  
!      CLASSNAME should be the fully-qualified name of a class which has
!      a public default constructor and contain a method with the
!      following signature:
  
               import com.sun.javadoc.RootDoc;
               public static boolean start(RootDoc rootDoc)
  
       The Doclet classes will be loaded from the classpath specified
!      using `-docletpath', from the classpath specified using
!      `-classpath' and from the default classpath.
  
!      The `start' method should process the information exposed by the
!      Doclet API via `rootDoc' and return `true' on success, `false' on
       failure.
  
       If you are using a third-party doclet, refer to its documentation
       for further instructions.  Note that support for third-party
!      doclets is experimental.  Please report any problems you
!      encounter, or provide feedback when successfully running
!      third-party applets.
  
       This option can be specified multiple times, in which case all
!      doclets are executed with the same information tree exposed via
!      the Doclet API for each Doclet run.
! 
  
  
  File: cp-tools.info,  Node: Decoration Options,  Next: Taglet Options,  Prev: Generation Options,  Up: gjdoc Tool
--- 2243,2281 ----
  4.8 Running Other Doclets
  =========================
  
! '-docletpath PATHLIST'
!      Search PATHLIST when loading classes for the Doclet specified using
!      '-doclet'.
  
       PATHLIST should be one or more paths to a directory or jar file,
!      separated by your platform's path separator (usually ':' or ';').
  
! '-doclet CLASSNAME'
       Run the specified doclet instead of the standard HtmlDoclet.
  
!      CLASSNAME should be the fully-qualified name of a class which has a
!      public default constructor and contain a method with the following
!      signature:
  
               import com.sun.javadoc.RootDoc;
               public static boolean start(RootDoc rootDoc)
  
       The Doclet classes will be loaded from the classpath specified
!      using '-docletpath', from the classpath specified using
!      '-classpath' and from the default classpath.
  
!      The 'start' method should process the information exposed by the
!      Doclet API via 'rootDoc' and return 'true' on success, 'false' on
       failure.
  
       If you are using a third-party doclet, refer to its documentation
       for further instructions.  Note that support for third-party
!      doclets is experimental.  Please report any problems you encounter,
!      or provide feedback when successfully running third-party applets.
  
       This option can be specified multiple times, in which case all
!      doclets are executed with the same information tree exposed via the
!      Doclet API for each Doclet run.
  
  
  File: cp-tools.info,  Node: Decoration Options,  Next: Taglet Options,  Prev: Generation Options,  Up: gjdoc Tool
*************** File: cp-tools.info,  Node: Decoration O
*** 2331,2346 ****
  4.9 Adding Information to the Output
  ====================================
  
! `-windowtitle TEXT'
       Use TEXT as the browser window title prefix.
  
       When specified, the browser window title for each page will be
!      prefixed with TEXT instead of the default string `Generated API
       Documentation'.
  
       TEXT should be plain text (it should not contain HTML tags).
  
! `-doctitle TEXT'
       Set the header text of the overview page to TEXT.
  
       TEXT should be a short plain text string.
--- 2283,2298 ----
  4.9 Adding Information to the Output
  ====================================
  
! '-windowtitle TEXT'
       Use TEXT as the browser window title prefix.
  
       When specified, the browser window title for each page will be
!      prefixed with TEXT instead of the default string 'Generated API
       Documentation'.
  
       TEXT should be plain text (it should not contain HTML tags).
  
! '-doctitle TEXT'
       Set the header text of the overview page to TEXT.
  
       TEXT should be a short plain text string.
*************** File: cp-tools.info,  Node: Decoration O
*** 2348,2382 ****
       When generating documentation for a single package, specifying this
       option forces generation of the overview page.
  
! `-header HTMLTEXT'
       Add HTMLTEXT to the right upper corner of every generated page.
       HTMLTEXT is usually set to the name of the project being
       documented.
  
! `-footer HTMLTEXT'
       Add HTMLTEXT to the right bottom corner of every generated page.
!      HTMLTEXT is often set to the same value as for `-header'.
  
- `-bottom HTMLTEXT'
       Add HTMLTEXT to the very bottom of every generated page, spanning
       the whole width of the page.  When specified, HTMLTEXT usually
       consists of a copyright notice and/or links to other project pages.
  
! `-addstylesheet FILE'
       Augment the default CSS style sheets with the user-specified
       stylesheet FILE.
  
!      The given stylesheet is simply loaded by each HTML page in
!      addition to the default ones, as the last stylesheet.
  
       Note that the CSS cascading rules apply.  That is, your style
       properties will only be assigned if they have a higher cascading
!      order than `gjdoc''s default style.  One simple way to make sure
!      that this is the case is to declare your overrides `!important'.
  
!      See `http://www.w3.org/TR/REC-CSS2/cascade.html#cascading-order'.
  
- `-group HEADING PKGWILDCARD:PKGWILDCARD:...'
       Arrange the given packages in a separate group on the overview
       page.
  
--- 2300,2339 ----
       When generating documentation for a single package, specifying this
       option forces generation of the overview page.
  
! '-header HTMLTEXT'
! 
       Add HTMLTEXT to the right upper corner of every generated page.
       HTMLTEXT is usually set to the name of the project being
       documented.
  
! '-footer HTMLTEXT'
! 
       Add HTMLTEXT to the right bottom corner of every generated page.
!      HTMLTEXT is often set to the same value as for '-header'.
! 
! '-bottom HTMLTEXT'
  
       Add HTMLTEXT to the very bottom of every generated page, spanning
       the whole width of the page.  When specified, HTMLTEXT usually
       consists of a copyright notice and/or links to other project pages.
  
! '-addstylesheet FILE'
! 
       Augment the default CSS style sheets with the user-specified
       stylesheet FILE.
  
!      The given stylesheet is simply loaded by each HTML page in addition
!      to the default ones, as the last stylesheet.
  
       Note that the CSS cascading rules apply.  That is, your style
       properties will only be assigned if they have a higher cascading
!      order than 'gjdoc''s default style.  One simple way to make sure
!      that this is the case is to declare your overrides '!important'.
  
!      See <http://www.w3.org/TR/REC-CSS2/cascade.html#cascading-order>.
! 
! '-group HEADING PKGWILDCARD:PKGWILDCARD:...'
  
       Arrange the given packages in a separate group on the overview
       page.
  
*************** File: cp-tools.info,  Node: Decoration O
*** 2386,2396 ****
       of all packages in the documentation set whose name matches any of
       the given wildcards.
  
!      There is only one wildcard character, `*', which matches both
!      letters in package name components and the `.' separating package
!      name components.  For example, `j*regex' would match package
!      `java.util.regex'.  A more useful example would be `javax.swing*'
!      to match `javax.swing' and all of its sub-packages.
  
       This option can be given multiple times.
  
--- 2343,2353 ----
       of all packages in the documentation set whose name matches any of
       the given wildcards.
  
!      There is only one wildcard character, '*', which matches both
!      letters in package name components and the '.' separating package
!      name components.  For example, 'j*regex' would match package
!      'java.util.regex'.  A more useful example would be 'javax.swing*'
!      to match 'javax.swing' and all of its sub-packages.
  
       This option can be given multiple times.
  
*************** File: cp-tools.info,  Node: Decoration O
*** 2402,2499 ****
                  -group "Other Extensions" javax* \
                  ...
  
! `-overview FILE'
       Add the XHTML body fragment from FILE to the overview page.
  
!      FILE should contain an XHTML fragment with the HTML `body' tag as
       the root node.  *Note XHTML Fragments::.
  
       This option can be used to supply a description of the
       documentation set as a whole.
  
       When specified, the first sentence of the fragment will be put
!      above the tables listing the documented packages, along with a
!      link to the full copy of the fragment which is put below the
!      tables.  *Note First Sentence Detector::.
  
       When generating documentation for a single package, specifying this
       option forces generation of the overview page.
  
! `-stylesheetfile FILE'
       Use the CSS stylesheet in FILE instead of the default CSS
       stylesheets.
  
       If you only want to override parts of the default stylesheets, use
!      `-addstylesheet' instead.
  
! `-title TEXT'
!      _Deprecated._ Use `-doctitle' TEXT instead.
  
- `-helpfile FILE'
       This option is currently ignored.
  
       When implemented, it will use the XHTML fragment in FILE for the
       help page contents instead of the default help text.
  
- 
  
  File: cp-tools.info,  Node: Output Control Options,  Next: Generation Options,  Prev: Interlinking Options,  Up: gjdoc Tool
  
  4.10 Controlling the Output.
  ============================
  
! `-d DIRECTORY'
       Place all output files into DIRECTORY (and sub-directories).
       DIRECTORY will be created if it does not exist, including all
       non-existing parent directories and all required sub-directories.
  
       If not specified, output will be placed into the current directory.
  
! `-locale NAME'
       Use locale NAME instead of the default locale for all purposes.
  
!      NAME should be a locale specifier in the form `ll_CC[_VAR]' where
!      `ll' is a lowercase two-letter ISO-639 language code, `CC' is an
!      optional uppercase two-letter ISO-3166 country code, and `VAR' is
!      an optional variant code.  For example, `en' specifies English,
!      `en_US' specifies US English, and `en_US_WIN' specifies a deviant
       variant of the US English locale.
  
       Note that the semantics of this option correspond exactly to those
!      of the constructors of class `java.util.Locale'.
  
       This option currently only determines which Collator is being used
       for sorting output elements.  This means that the locale will only
       have an effect when you are using non-ASCII characters in
       identifiers.
  
! `-charset CHARSET'
!      _Deprecated._ Override the specified encoding in output XHTML
!      files with the one given by `charset'.
  
       If this option is not given, the encoding specification in output
       XHTML is chosen to match the encoding used when writing the file
!      (the encoding given with `-docencoding', or your platform's default
       encoding).
  
       The semantics for CHARSET are specified here:
!      `http://www.w3.org/TR/2000/REC-xml-20001006#NT-EncName'.  For all
       practical purposes, they are identical to those of the other
       options accepting charset parameters.
  
!      This option is here for compatibility with `javadoc' and should be
       avoided.
  
! `-docencoding CHARSET'
       Use the given charset encoding when writing output files instead of
       your platform's default encoding.
  
!      Examples for CHARSET are `US-ASCII', `ISO-8859-1' or `UTF-8'.
  
       The semantics of this option correspond exactly to those of the
!      constructors of class `java.util.Locale'.
  
- `-validhtml'
       Force generation of valid XHTML code.  This breaks compatibility to
       the traditional Javadoc tool to some extent.
  
--- 2359,2463 ----
                  -group "Other Extensions" javax* \
                  ...
  
! '-overview FILE'
! 
       Add the XHTML body fragment from FILE to the overview page.
  
!      FILE should contain an XHTML fragment with the HTML 'body' tag as
       the root node.  *Note XHTML Fragments::.
  
       This option can be used to supply a description of the
       documentation set as a whole.
  
       When specified, the first sentence of the fragment will be put
!      above the tables listing the documented packages, along with a link
!      to the full copy of the fragment which is put below the tables.
!      *Note First Sentence Detector::.
  
       When generating documentation for a single package, specifying this
       option forces generation of the overview page.
  
! '-stylesheetfile FILE'
! 
       Use the CSS stylesheet in FILE instead of the default CSS
       stylesheets.
  
       If you only want to override parts of the default stylesheets, use
!      '-addstylesheet' instead.
  
! '-title TEXT'
! 
!      _Deprecated._  Use '-doctitle' TEXT instead.
! 
! '-helpfile FILE'
  
       This option is currently ignored.
  
       When implemented, it will use the XHTML fragment in FILE for the
       help page contents instead of the default help text.
  
  
  File: cp-tools.info,  Node: Output Control Options,  Next: Generation Options,  Prev: Interlinking Options,  Up: gjdoc Tool
  
  4.10 Controlling the Output.
  ============================
  
! '-d DIRECTORY'
       Place all output files into DIRECTORY (and sub-directories).
       DIRECTORY will be created if it does not exist, including all
       non-existing parent directories and all required sub-directories.
  
       If not specified, output will be placed into the current directory.
  
! '-locale NAME'
! 
       Use locale NAME instead of the default locale for all purposes.
  
!      NAME should be a locale specifier in the form 'll_CC[_VAR]' where
!      'll' is a lowercase two-letter ISO-639 language code, 'CC' is an
!      optional uppercase two-letter ISO-3166 country code, and 'VAR' is
!      an optional variant code.  For example, 'en' specifies English,
!      'en_US' specifies US English, and 'en_US_WIN' specifies a deviant
       variant of the US English locale.
  
       Note that the semantics of this option correspond exactly to those
!      of the constructors of class 'java.util.Locale'.
  
       This option currently only determines which Collator is being used
       for sorting output elements.  This means that the locale will only
       have an effect when you are using non-ASCII characters in
       identifiers.
  
! '-charset CHARSET'
! 
!      _Deprecated._  Override the specified encoding in output XHTML
!      files with the one given by 'charset'.
  
       If this option is not given, the encoding specification in output
       XHTML is chosen to match the encoding used when writing the file
!      (the encoding given with '-docencoding', or your platform's default
       encoding).
  
       The semantics for CHARSET are specified here:
!      <http://www.w3.org/TR/2000/REC-xml-20001006#NT-EncName>.  For all
       practical purposes, they are identical to those of the other
       options accepting charset parameters.
  
!      This option is here for compatibility with 'javadoc' and should be
       avoided.
  
! '-docencoding CHARSET'
! 
       Use the given charset encoding when writing output files instead of
       your platform's default encoding.
  
!      Examples for CHARSET are 'US-ASCII', 'ISO-8859-1' or 'UTF-8'.
  
       The semantics of this option correspond exactly to those of the
!      constructors of class 'java.util.Locale'.
! 
! '-validhtml'
  
       Force generation of valid XHTML code.  This breaks compatibility to
       the traditional Javadoc tool to some extent.
  
*************** File: cp-tools.info,  Node: Output Contr
*** 2507,2516 ****
       the traditional format, for example: "foo(String,int[])".  This is
       compatible to the traditional Javadoc tool, but according to both
       the HTML 4.0 and XHTML 1.0 and 1.1 specifications, this format
!      includes illegal characters.  Parentheses, square brackets, and
!      the comma are not allowed in anchor names.
  
- `-baseurl URL'
       Hardwire a page URL relative to URL into each generated page.
  
       If you are generating documentation which will exclusively be
--- 2471,2481 ----
       the traditional format, for example: "foo(String,int[])".  This is
       compatible to the traditional Javadoc tool, but according to both
       the HTML 4.0 and XHTML 1.0 and 1.1 specifications, this format
!      includes illegal characters.  Parentheses, square brackets, and the
!      comma are not allowed in anchor names.
! 
! '-baseurl URL'
  
       Hardwire a page URL relative to URL into each generated page.
  
       If you are generating documentation which will exclusively be
*************** File: cp-tools.info,  Node: Output Contr
*** 2520,2583 ****
       This can help avoid certain redirect attacks used by spammers, and
       it can be helpful for certain web clients.
  
- 
  
  File: cp-tools.info,  Node: Verbosity Options,  Next: Doclet Options,  Prev: Virtual Machine Options,  Up: gjdoc Tool
  
  4.11 Verbosity Options
  ======================
  
! `-quiet'
       Suppress all output except for warnings and error messages.
  
! `-verbose'
!      Be very verbose about what `gjdoc' is doing.
  
       This option is currently ignored.
  
- 
  
  File: cp-tools.info,  Node: Virtual Machine Options,  Next: Verbosity Options,  Prev: Taglet Options,  Up: gjdoc Tool
  
  4.12 Virtual Machine Options
  ============================
  
! Sun's `javadoc' tool seems to be based on `javac' and as such it seems
! to operate on the VM level.  `gjdoc', in contrast, is a pure Java
  application.
  
!    Therefore, `gjdoc' can only fake, or simulate, the following
! VM-level options.
  
! `-classpath PATHLIST'
!      Set the Virtual Machine `classpath' to PATHLIST.
  
!      In most cases you should use `-docletpath' or `-tagletpath'
!      instead of this option.
  
       PATHLIST should be one or more paths to a directory or jar file,
!      separated by your platform's path separator (usually `:' or `;').
  
!      If this option is not intercepted at the wrapper level, `gjdoc'
       currently fakes it by calling
!      `System.setProperty("java.class.path", PATHLIST);' and outputs a
       warning.
  
! `-bootclasspath PATHLIST'
!      Set the Virtual Machine `bootclasspath' to PATHLIST.
  
!      If this option is not intercepted at the wrapper level, `gjdoc'
       outputs a warning.
  
! `-JVMOPT'
!      Pass an arbitrary parameter to the Virtual Machine `gjdoc' runs on.
  
!      If this option is not intercepted at the wrapper level, `gjdoc'
!      tries to emulate the option and outputs a warning.
  
!      Currently, only the VM option `-D' for setting system properties
!      is emulated.
  
  
  
  File: cp-tools.info,  Node: Invoking a Custom Doclet,  Next: Option Summary by Type,  Prev: Invoking the Standard Doclet,  Up: gjdoc Tool
--- 2485,2546 ----
       This can help avoid certain redirect attacks used by spammers, and
       it can be helpful for certain web clients.
  
  
  File: cp-tools.info,  Node: Verbosity Options,  Next: Doclet Options,  Prev: Virtual Machine Options,  Up: gjdoc Tool
  
  4.11 Verbosity Options
  ======================
  
! '-quiet'
       Suppress all output except for warnings and error messages.
  
! '-verbose'
!      Be very verbose about what 'gjdoc' is doing.
  
       This option is currently ignored.
  
  
  File: cp-tools.info,  Node: Virtual Machine Options,  Next: Verbosity Options,  Prev: Taglet Options,  Up: gjdoc Tool
  
  4.12 Virtual Machine Options
  ============================
  
! Sun's 'javadoc' tool seems to be based on 'javac' and as such it seems
! to operate on the VM level.  'gjdoc', in contrast, is a pure Java
  application.
  
!    Therefore, 'gjdoc' can only fake, or simulate, the following VM-level
! options.
  
! '-classpath PATHLIST'
!      Set the Virtual Machine 'classpath' to PATHLIST.
  
!      In most cases you should use '-docletpath' or '-tagletpath' instead
!      of this option.
  
       PATHLIST should be one or more paths to a directory or jar file,
!      separated by your platform's path separator (usually ':' or ';').
  
!      If this option is not intercepted at the wrapper level, 'gjdoc'
       currently fakes it by calling
!      'System.setProperty("java.class.path", PATHLIST);' and outputs a
       warning.
  
! '-bootclasspath PATHLIST'
!      Set the Virtual Machine 'bootclasspath' to PATHLIST.
  
!      If this option is not intercepted at the wrapper level, 'gjdoc'
       outputs a warning.
  
! '-JVMOPT'
  
!      Pass an arbitrary parameter to the Virtual Machine 'gjdoc' runs on.
  
!      If this option is not intercepted at the wrapper level, 'gjdoc'
!      tries to emulate the option and outputs a warning.
  
+      Currently, only the VM option '-D' for setting system properties is
+      emulated.
  
  
  File: cp-tools.info,  Node: Invoking a Custom Doclet,  Next: Option Summary by Type,  Prev: Invoking the Standard Doclet,  Up: gjdoc Tool
*************** File: cp-tools.info,  Node: Invoking a C
*** 2585,2600 ****
  4.13 Invoking a Custom Doclet
  =============================
  
! For invoking one of the other doclets shipping with `gjdoc' or a
  third-party doclet, the canonical usage is:
  
       gjdoc -s src/java/ -all \
         -docletpath /path/to/doclet.jar -doclet foo.BarDoclet \
         (more Gjdoc core options and Doclet-specific options here)
  
!    `/path/to/doclet.jar' is a placeholder for a class path specifying
  where the Doclet classes and dependencies can be found and
! `foo.BarDoclet' is the fully-qualified name of the Doclet's main class.
  
  
  File: cp-tools.info,  Node: Gjdoc Option Summary,  Next: Source Set Options,  Prev: Option Summary by Type,  Up: gjdoc Tool
--- 2548,2563 ----
  4.13 Invoking a Custom Doclet
  =============================
  
! For invoking one of the other doclets shipping with 'gjdoc' or a
  third-party doclet, the canonical usage is:
  
       gjdoc -s src/java/ -all \
         -docletpath /path/to/doclet.jar -doclet foo.BarDoclet \
         (more Gjdoc core options and Doclet-specific options here)
  
!    '/path/to/doclet.jar' is a placeholder for a class path specifying
  where the Doclet classes and dependencies can be found and
! 'foo.BarDoclet' is the fully-qualified name of the Doclet's main class.
  
  
  File: cp-tools.info,  Node: Gjdoc Option Summary,  Next: Source Set Options,  Prev: Option Summary by Type,  Up: gjdoc Tool
*************** A Doclet is a class that contains a meth
*** 2741,2756 ****
  
       public static boolean start(RootDoc rootDoc);
  
!    ROOTDOC is the root of an object hierarchy containing the
! information `gjdoc' extracted from the source files.  See the Doclet
! API for more details.
  
!    `start' should process all the information and return `true' on
! success, `false' on failure.
  
     For printing status information, the Doclet should use methods
! `printNotice', `printWarning' and `printError' instead of `System.err'.
! The Doclet can opt to use `System.out' for redirectable output.
  
  
  File: cp-tools.info,  Node: Using AbstractDoclet,  Next: GNU Doclet SPI,  Prev: Doclet Invocation Interface,  Up: Writing Doclets
--- 2704,2719 ----
  
       public static boolean start(RootDoc rootDoc);
  
!    ROOTDOC is the root of an object hierarchy containing the information
! 'gjdoc' extracted from the source files.  See the Doclet API for more
! details.
  
!    'start' should process all the information and return 'true' on
! success, 'false' on failure.
  
     For printing status information, the Doclet should use methods
! 'printNotice', 'printWarning' and 'printError' instead of 'System.err'.
! The Doclet can opt to use 'System.out' for redirectable output.
  
  
  File: cp-tools.info,  Node: Using AbstractDoclet,  Next: GNU Doclet SPI,  Prev: Doclet Invocation Interface,  Up: Writing Doclets
*************** File: cp-tools.info,  Node: Using Abstra
*** 2758,2789 ****
  6.2.2 Deriving Your Doclet from AbstractDoclet
  ----------------------------------------------
  
! You may want your Doclet to provide functionality similar to
! HtmlDoclet.  For example, you may want it to support Taglets, generate
! Index, Tree, and Uses pages, or show other cross-reference information
! like `Overrides' and `All Implementing Classes'.
  
     This information is not directly provided by the Doclet API, so your
! Doclet would normally have to assemble it itself.  For example, it
! would have to add the names of all program elements to a list and sort
! this list in order to create the Index page.
  
     If you want to provide this information or part of it, you should
  consider deriving your class from
! `gnu.classpath.tools.doclets.AbstractDoclet'.  This class provides the
  following benefits:
  
!    * Handles options `-tag', `-taglet', `-tagletpath' (Taglets)
  
     * Provides standard taglets for @version, @author, @since, @serial,
       @deprecated, @see, @param, @return and handles all related options
!      (`-version', `-author', `-nosince', `-nodeprecated')
  
!    * Handles option `-d' (destination directory)
  
!    * Handles option `-noqualifier' (classes to omit qualifier for)
  
!    * Handles options `-docfilessubdirs' and `-excludedocfilessubdir'
       (resource copying)
  
     * Can generate a full index or an index split by first letter
--- 2721,2752 ----
  6.2.2 Deriving Your Doclet from AbstractDoclet
  ----------------------------------------------
  
! You may want your Doclet to provide functionality similar to HtmlDoclet.
! For example, you may want it to support Taglets, generate Index, Tree,
! and Uses pages, or show other cross-reference information like
! 'Overrides' and 'All Implementing Classes'.
  
     This information is not directly provided by the Doclet API, so your
! Doclet would normally have to assemble it itself.  For example, it would
! have to add the names of all program elements to a list and sort this
! list in order to create the Index page.
  
     If you want to provide this information or part of it, you should
  consider deriving your class from
! 'gnu.classpath.tools.doclets.AbstractDoclet'.  This class provides the
  following benefits:
  
!    * Handles options '-tag', '-taglet', '-tagletpath' (Taglets)
  
     * Provides standard taglets for @version, @author, @since, @serial,
       @deprecated, @see, @param, @return and handles all related options
!      ('-version', '-author', '-nosince', '-nodeprecated')
  
!    * Handles option '-d' (destination directory)
  
!    * Handles option '-noqualifier' (classes to omit qualifier for)
  
!    * Handles options '-docfilessubdirs' and '-excludedocfilessubdir'
       (resource copying)
  
     * Can generate a full index or an index split by first letter
*************** following benefits:
*** 2801,2832 ****
  
     * Provides various other convenience methods
  
  
!    If you derive from `AbstractDoclet', there are a number of things
! you need to take care of:
! 
!    *
!    you should not implement the `start(RootDoc)' method as it is
! already defined by `AbstractDoclet' so that it can care about parsing
! the options.
  
!    Instead, you implement method `run()', `getOptions()' and the other
  abstract methods to define your Doclet's behavior.
  
!    Note that all information provided by `AbstractDoclet' is evaluated
  lazily.  That is, if your Doclet doesn't need to create an Index page,
! then `AbstractDoclet' will not spend resources on creating the
  corresponding information.
  
     See the API documentation for
! `gnu.classpath.tools.doclets.AbstractDoclet' for more details.
  
!    You should be aware that if you base your Doclet on `AbstractDoclet'
  then you have to bundle this and all related classes with your Doclet,
  with all implications such as possible licensing issues.  Otherwise,
! your Doclet will only be runnable on `gjdoc' and not on other
! documentation systems.  Also note that `AbstractDoclet' has not been
! extensively tested in environments other than `gjdoc'.
  
  
  File: cp-tools.info,  Node: GNU Doclet SPI,  Prev: Using AbstractDoclet,  Up: Writing Doclets
--- 2764,2794 ----
  
     * Provides various other convenience methods
  
+    If you derive from 'AbstractDoclet', there are a number of things you
+ need to take care of:
  
!    * 
!    you should not implement the 'start(RootDoc)' method as it is already
! defined by 'AbstractDoclet' so that it can care about parsing the
! options.
  
!    Instead, you implement method 'run()', 'getOptions()' and the other
  abstract methods to define your Doclet's behavior.
  
!    Note that all information provided by 'AbstractDoclet' is evaluated
  lazily.  That is, if your Doclet doesn't need to create an Index page,
! then 'AbstractDoclet' will not spend resources on creating the
  corresponding information.
  
     See the API documentation for
! 'gnu.classpath.tools.doclets.AbstractDoclet' for more details.
  
!    You should be aware that if you base your Doclet on 'AbstractDoclet'
  then you have to bundle this and all related classes with your Doclet,
  with all implications such as possible licensing issues.  Otherwise,
! your Doclet will only be runnable on 'gjdoc' and not on other
! documentation systems.  Also note that 'AbstractDoclet' has not been
! extensively tested in environments other than 'gjdoc'.
  
  
  File: cp-tools.info,  Node: GNU Doclet SPI,  Prev: Using AbstractDoclet,  Up: Writing Doclets
*************** File: cp-tools.info,  Node: GNU Doclet S
*** 2834,2854 ****
  6.2.3 Preparing for the GNU Doclet Service Provider Interface
  -------------------------------------------------------------
  
! In addition to the standard Doclet invocation interface described
! above, `gjdoc' also offers a Service Provider Interface conforming to
! the Java standard.  Adding support for this interface to your Doclet
! simplifies usage for `gjdoc' users because it makes your Doclet
! "discoverable".
  
     In order to provide the alternate interface, you have to add a class
! implementing `gnu.classpath.tools.gjdoc.spi.DocletSpi' to your Doclet
  classes, and bundle all Doclet classes in a Jar file along with a file
! named `META_INF/services/gnu.classpath.tools.gjdoc.spi.DocletSpi' which
  contains the name of your class implementing DocletSpi on a single line.
  
     Note that if your Doclet depends on third-party classes bundled in
  separate Jar files, you can link in these classes using the
! `Class-path:' Manifest attribute of your Doclet Jar.
  
     Your Doclet can then be invoked in one of the following ways:
       gjdoc -docletjar /path/to/doclet.jar
--- 2796,2815 ----
  6.2.3 Preparing for the GNU Doclet Service Provider Interface
  -------------------------------------------------------------
  
! In addition to the standard Doclet invocation interface described above,
! 'gjdoc' also offers a Service Provider Interface conforming to the Java
! standard.  Adding support for this interface to your Doclet simplifies
! usage for 'gjdoc' users because it makes your Doclet "discoverable".
  
     In order to provide the alternate interface, you have to add a class
! implementing 'gnu.classpath.tools.gjdoc.spi.DocletSpi' to your Doclet
  classes, and bundle all Doclet classes in a Jar file along with a file
! named 'META_INF/services/gnu.classpath.tools.gjdoc.spi.DocletSpi' which
  contains the name of your class implementing DocletSpi on a single line.
  
     Note that if your Doclet depends on third-party classes bundled in
  separate Jar files, you can link in these classes using the
! 'Class-path:' Manifest attribute of your Doclet Jar.
  
     Your Doclet can then be invoked in one of the following ways:
       gjdoc -docletjar /path/to/doclet.jar
*************** separate Jar files, you can link in thes
*** 2856,2865 ****
       gjdoc -docletname DOCLETNAME
  
     Here, DOCLETNAME is the name of your doclet as returned by
! `DocletSpi.getDocletName()'.
  
!    The last example will only work if your Doclet Jar is in `gjdoc''s
! `doclets' directory or if it is on the classpath.
  
  
  File: cp-tools.info,  Node: XHTML Fragments,  Next: First Sentence Detector,  Prev: Writing Doclets,  Up: Gjdoc Concepts
--- 2817,2826 ----
       gjdoc -docletname DOCLETNAME
  
     Here, DOCLETNAME is the name of your doclet as returned by
! 'DocletSpi.getDocletName()'.
  
!    The last example will only work if your Doclet Jar is in 'gjdoc''s
! 'doclets' directory or if it is on the classpath.
  
  
  File: cp-tools.info,  Node: XHTML Fragments,  Next: First Sentence Detector,  Prev: Writing Doclets,  Up: Gjdoc Concepts
*************** results in invalid files if the user-spe
*** 2876,2882 ****
  HTML code, which means that every Doclet must deal with non-wellformed
  code as well.
  
!    The `gjdoc' built-in Doclets deal with this problem by "fixing" the
  HTML code - making sure that all tags are closed, attribute values are
  provided and quoted, tags are properly nested, etc.
  
--- 2837,2843 ----
  HTML code, which means that every Doclet must deal with non-wellformed
  code as well.
  
!    The 'gjdoc' built-in Doclets deal with this problem by "fixing" the
  HTML code - making sure that all tags are closed, attribute values are
  provided and quoted, tags are properly nested, etc.
  
*************** File: cp-tools.info,  Node: First Senten
*** 2898,2939 ****
  6.4 How Gjdoc Determines where the First Sentence Ends
  ======================================================
  
! For a package, class or member summary, `gjdoc' only shows the first
! sentence of the documentation comment in question.  Because `gjdoc' is
! not human, it is not always obvious to `gjdoc' where the first sentence
  ends.
  
     You might be tempted to say that the first sentence ends at the first
! occurrence of a punctuation character like `.' or `!'. However,
  consider examples like this:
       This work, by Thomas J. Shahan et al., is about the middle ages.
  
     As you can see, it is not trivial to determine the end of the
  sentence.
  
!    `gjdoc' gives you the choice between two approaches.  By default it
! uses built-in heuristics which should be compatible to Sun's `javadoc'
  tool.  This approach works quiet well in most cases, at least for
  english comments.
  
!    Alternatively, you can specify option `-breakiterator' in which case
! `gjdoc' will use
! `java.text.BreakIterator.getSentenceInstance(LOCALE).next()' to find
! the end of sentence, where LOCALE is the locale specified by option
! `-locale' or the default locale if none specified.
  
     _NOT YET IMPLEMENTED:_
  
!    `gjdoc' also allows you to explicitly delineate the first sentence
! by putting it in a `<span>' tag with the CSS class `first-sentence'.
! For example:
       /**
        *  <span class="first-sentence">This. is. the. first.
        *  sentence.</span> This is the second sentence.
        */
  
!    Note that this will only work with `gjdoc', but shouldn't hurt when
! using another documentation system since the `<span>' tag usually
  doesn't show up in the output.
  
  
--- 2859,2900 ----
  6.4 How Gjdoc Determines where the First Sentence Ends
  ======================================================
  
! For a package, class or member summary, 'gjdoc' only shows the first
! sentence of the documentation comment in question.  Because 'gjdoc' is
! not human, it is not always obvious to 'gjdoc' where the first sentence
  ends.
  
     You might be tempted to say that the first sentence ends at the first
! occurrence of a punctuation character like '.' or '!'.  However,
  consider examples like this:
       This work, by Thomas J. Shahan et al., is about the middle ages.
  
     As you can see, it is not trivial to determine the end of the
  sentence.
  
!    'gjdoc' gives you the choice between two approaches.  By default it
! uses built-in heuristics which should be compatible to Sun's 'javadoc'
  tool.  This approach works quiet well in most cases, at least for
  english comments.
  
!    Alternatively, you can specify option '-breakiterator' in which case
! 'gjdoc' will use
! 'java.text.BreakIterator.getSentenceInstance(LOCALE).next()' to find the
! end of sentence, where LOCALE is the locale specified by option
! '-locale' or the default locale if none specified.
  
     _NOT YET IMPLEMENTED:_
  
!    'gjdoc' also allows you to explicitly delineate the first sentence by
! putting it in a '<span>' tag with the CSS class 'first-sentence'.  For
! example:
       /**
        *  <span class="first-sentence">This. is. the. first.
        *  sentence.</span> This is the second sentence.
        */
  
!    Note that this will only work with 'gjdoc', but shouldn't hurt when
! using another documentation system since the '<span>' tag usually
  doesn't show up in the output.
  
  
*************** Sometimes you want to decorate your docu
*** 2946,2976 ****
  resources such as images, SVG graphics, applets, and so on.  To do so,
  simply put the required files in a subdirectory 'doc-files' in the
  package directory corresponding to the documentation entry you want to
! decorate, and refer to it with the URL `doc-files/FILENAME'.
  
     For example, if you want to add an image to the description of class
! `baz.FooBar', create a directory `doc-files' in the directory `baz'
! containing `FooBar.java' and put your file, say `diagram.png', into
! that directory.  Then, add the HTML code like this to a comment in
! `FooBar.java':
       <img src="doc-files/diagram.png" width="200" height="150"
         alt="Foo Diagram"/>
  
!    This works because the `doc-files' subdirectories will be copied to
  the target documentation directory every time you generate the
  documentation.
  
!    Note however that by default, the `doc-files' directory will not be
  copied deeply.  In other words, if you create subdirectories under
! `doc-files' they will not be copied and any resources located in these
  subdirectories will not be accessible in your generated documentation.
! You can specify option `-docfilessubdirs' to remove this limitation.
  
!    Sometimes you want to use option `-docfilessubdirs', but there are
  certain directories which you don't want to be copied, for example
! because they contain source files for the resources in `doc-files'.
! For cases like this, use `-excludedocfilessubdir' to specify
! directories to be omitted.
  
  
  File: cp-tools.info,  Node: I18N Issues,  Prev: Other Tools,  Up: Top
--- 2907,2937 ----
  resources such as images, SVG graphics, applets, and so on.  To do so,
  simply put the required files in a subdirectory 'doc-files' in the
  package directory corresponding to the documentation entry you want to
! decorate, and refer to it with the URL 'doc-files/FILENAME'.
  
     For example, if you want to add an image to the description of class
! 'baz.FooBar', create a directory 'doc-files' in the directory 'baz'
! containing 'FooBar.java' and put your file, say 'diagram.png', into that
! directory.  Then, add the HTML code like this to a comment in
! 'FooBar.java':
       <img src="doc-files/diagram.png" width="200" height="150"
         alt="Foo Diagram"/>
  
!    This works because the 'doc-files' subdirectories will be copied to
  the target documentation directory every time you generate the
  documentation.
  
!    Note however that by default, the 'doc-files' directory will not be
  copied deeply.  In other words, if you create subdirectories under
! 'doc-files' they will not be copied and any resources located in these
  subdirectories will not be accessible in your generated documentation.
! You can specify option '-docfilessubdirs' to remove this limitation.
  
!    Sometimes you want to use option '-docfilessubdirs', but there are
  certain directories which you don't want to be copied, for example
! because they contain source files for the resources in 'doc-files'.  For
! cases like this, use '-excludedocfilessubdir' to specify directories to
! be omitted.
  
  
  File: cp-tools.info,  Node: I18N Issues,  Prev: Other Tools,  Up: Top
*************** File: cp-tools.info,  Node: Language Res
*** 2994,3079 ****
  7.1 Language-specific resources
  ===============================
  
! The Tools use Java `ResourceBundle's to store messages, and message
  templates they use at runtime to generate the message text itself,
  depending on the locale in use at the time.
  
     The Resource Bundles these tools use are essentially Java Properties
! files consisting of a set of Name/Value pairs. The Name is the Property
  Name and the Value is a substitution string that is used when the code
! references the associated Name. For example the following is a line in
! a Resource Bundle used by the `keytool' Tool:
  
       Command.23=A correct key password MUST be provided
  
     When the tool needs to signal a mandatory but missing key password,
! it would reference the property named `Command.23' and the message "`A
! correct key password MUST be provided'" will be used instead. This
  indirect referencing of "resources" permits replacing, as late as
  possible, the English strings with strings in other languages, provided
  of course Resource Bundles in those languages are provided.
  
     For the GNU Classpath Tools described in this Guide, the Resource
! Bundles are files named `messages[_ll[_CC[_VV]]].properties' where:
  
  LL
       Is the 2-letter code for the Language,
- 
  CC
       Is the 2-letter code for the Region, and
- 
  VV
       Is the 2-letter code for the Variant of the language.
  
     The complete list of language codes can be found at Code for the
  representation of names of languages
! (http://ftp.ics.uci.edu/pub/ietf/http/related/iso639.txt). A similar
  list for the region codes can be found at ISO 3166 Codes (Countries)
  (http://userpage.chemie.fu-berlin.de/diverse/doc/ISO_3166.html).
  
     The location of the Resource Bundles for the GNU Classpath Tools is
! specific to each tool. The next table shows where these files are found
  in a standard GNU Classpath distribution:
  
! `jarsigner'
!      `gnu/classpath/tools/jarsigner'
! 
! `keytool'
!      `gnu/classpath/tools/keytool'
  
     The collection of Resource Bundles in a location act as an inverted
! tree with a parent-child relationship. For example suppose in the
! `gnu/classpath/tools/keytool' there are 3 message bundles named:
! 
!   1. `messages.properties'
! 
!   2. `messages_fr.properties'
  
!   3. `messages_fr_FR.properties'
  
     In the above example, bundle #1 will act as the parent of bundle #2,
! which in turn will act as the parent for bundle #3. This ordering is
  used by the Java runtime to choose which file to load based on the set
! Locale. For example if the Locale is `fr_CH', `messages_fr.properties'
! will be used because (a) `messages_fr_CH.properties' does not exist,
! but (b) `messages_fr.properties' is the parent for the required bundle,
! and it exists. As another example, suppose the Locale was set to
! `en_AU'; then the tool will end up using `messages.properties' because
! (a) `messages_en_AU.properties' does not exist, (b)
! `messages_en.properties' which is the parent for the required bundle
! does not exist, but (c) `messages.properties' exists and is the root of
! the hierarchy.
  
!    You can see from the examples above that `messages.properties' is
! the safety net that the Java runtime falls back to when failing to find
! a specific bundle and its parent(s). This file is always provided with
! the Tool. In time, more localized versions will be included to cater
  for other languages.
  
     In the meantime, if you are willing to contribute localized versions
! of these resources, grab the `messages.properties' for a specific tool;
  translate it; save it with the appropriate language and region suffix
! and mail it to `classpath@gnu.org'.
  
  
  File: cp-tools.info,  Node: Message Formats,  Prev: Language Resources,  Up: I18N Issues
--- 2955,3034 ----
  7.1 Language-specific resources
  ===============================
  
! The Tools use Java 'ResourceBundle's to store messages, and message
  templates they use at runtime to generate the message text itself,
  depending on the locale in use at the time.
  
     The Resource Bundles these tools use are essentially Java Properties
! files consisting of a set of Name/Value pairs.  The Name is the Property
  Name and the Value is a substitution string that is used when the code
! references the associated Name.  For example the following is a line in
! a Resource Bundle used by the 'keytool' Tool:
  
       Command.23=A correct key password MUST be provided
  
     When the tool needs to signal a mandatory but missing key password,
! it would reference the property named 'Command.23' and the message "'A
! correct key password MUST be provided'" will be used instead.  This
  indirect referencing of "resources" permits replacing, as late as
  possible, the English strings with strings in other languages, provided
  of course Resource Bundles in those languages are provided.
  
     For the GNU Classpath Tools described in this Guide, the Resource
! Bundles are files named 'messages[_ll[_CC[_VV]]].properties' where:
  
  LL
       Is the 2-letter code for the Language,
  CC
       Is the 2-letter code for the Region, and
  VV
       Is the 2-letter code for the Variant of the language.
  
     The complete list of language codes can be found at Code for the
  representation of names of languages
! (http://ftp.ics.uci.edu/pub/ietf/http/related/iso639.txt).  A similar
  list for the region codes can be found at ISO 3166 Codes (Countries)
  (http://userpage.chemie.fu-berlin.de/diverse/doc/ISO_3166.html).
  
     The location of the Resource Bundles for the GNU Classpath Tools is
! specific to each tool.  The next table shows where these files are found
  in a standard GNU Classpath distribution:
  
! 'jarsigner'
!      'gnu/classpath/tools/jarsigner'
! 'keytool'
!      'gnu/classpath/tools/keytool'
  
     The collection of Resource Bundles in a location act as an inverted
! tree with a parent-child relationship.  For example suppose in the
! 'gnu/classpath/tools/keytool' there are 3 message bundles named:
  
!   1. 'messages.properties'
!   2. 'messages_fr.properties'
!   3. 'messages_fr_FR.properties'
  
     In the above example, bundle #1 will act as the parent of bundle #2,
! which in turn will act as the parent for bundle #3.  This ordering is
  used by the Java runtime to choose which file to load based on the set
! Locale.  For example if the Locale is 'fr_CH', 'messages_fr.properties'
! will be used because (a) 'messages_fr_CH.properties' does not exist, but
! (b) 'messages_fr.properties' is the parent for the required bundle, and
! it exists.  As another example, suppose the Locale was set to 'en_AU';
! then the tool will end up using 'messages.properties' because (a)
! 'messages_en_AU.properties' does not exist, (b) 'messages_en.properties'
! which is the parent for the required bundle does not exist, but (c)
! 'messages.properties' exists and is the root of the hierarchy.
  
!    You can see from the examples above that 'messages.properties' is the
! safety net that the Java runtime falls back to when failing to find a
! specific bundle and its parent(s).  This file is always provided with
! the Tool.  In time, more localized versions will be included to cater
  for other languages.
  
     In the meantime, if you are willing to contribute localized versions
! of these resources, grab the 'messages.properties' for a specific tool;
  translate it; save it with the appropriate language and region suffix
! and mail it to 'classpath@gnu.org'.
  
  
  File: cp-tools.info,  Node: Message Formats,  Prev: Language Resources,  Up: I18N Issues
*************** File: cp-tools.info,  Node: Message Form
*** 3081,3087 ****
  7.2 Message formats
  ===================
  
! If you open any of the `messages.properties' described in the previous
  section, you may see properties that look like so:
  
       Command.67=Issuer: {0}
--- 3036,3042 ----
  7.2 Message formats
  ===================
  
! If you open any of the 'messages.properties' described in the previous
  section, you may see properties that look like so:
  
       Command.67=Issuer: {0}
*************** section, you may see properties that loo
*** 3093,3191 ****
  string that will then be used either as a prompt for User input or as
  output.
  
!    If you are translating a `messages.properties' be careful not to
  alter text between curly braces.
  
  
  
  Tag Table:
! Node: Top1164
! Node: Applet Tools6884
! Node: appletviewer Tool7457
! Node: gcjwebplugin10572
! Node: Security Tools10884
! Node: jarsigner Tool11537
! Node: Common jarsigner Options12585
! Node: Signing Options13900
! Node: Verification Options16483
! Node: keytool Tool17071
! Node: Getting Help21499
! Node: Common keytool Options22243
! Ref: alias22516
! Ref: keyalg22898
! Ref: keysize23128
! Ref: validity23393
! Ref: storetype23608
! Ref: storepass23939
! Ref: keystore24136
! Ref: provider24679
! Ref: file25086
! Ref: verbose25557
! Node: Distinguished Names25649
! Ref: dn25843
! Node: Add/Update Commands26906
! Node: Command -genkey27434
! Node: Command -import29843
! Node: Command -selfcert32987
! Node: Command -cacert35166
! Node: Command -identitydb36219
! Node: Export Commands36877
! Node: Command -certreq37193
! Node: Command -export39599
! Node: Display Commands40796
! Node: Command -list41128
! Node: Command -printcert42261
! Node: Management Commands42645
! Node: Command -keyclone43077
! Node: Command -storepasswd44480
! Node: Command -keypasswd45209
! Node: Command -delete46403
! Node: Other Tools47026
! Node: jar Tool47868
! Node: javah Tool49260
! Node: gcjh Tool50479
! Node: native2ascii Tool51592
! Node: orbd Tool52053
! Node: serialver Tool52783
! Node: rmid Tool53252
! Node: rmiregistry Tool54193
! Node: tnameserv Tool55033
! Node: gjdoc Tool55657
! Node: Invoking the Standard Doclet57645
! Node: Option Summary by Type58800
! Node: Source Set Options61230
! Node: Source Format Options63094
! Node: Interlinking Options64608
! Node: Generation Options67385
! Node: Taglet Options73482
! Node: Doclet Options75709
! Node: Decoration Options77285
! Node: Output Control Options81376
! Node: Verbosity Options84908
! Node: Virtual Machine Options85254
! Node: Invoking a Custom Doclet86650
! Node: Gjdoc Option Summary87325
! Node: Other Doclets87505
! Node: Built-in Doclets87733
! Node: Using TexiDoclet87988
! Node: Using XmlDoclet88210
! Node: Using IspellDoclet88435
! Node: Using DebugDoclet88663
! Node: Third-party Doclets88863
! Node: DocBook Doclet89079
! Node: PDFDoclet89222
! Node: JUnitDoclet89375
! Node: Gjdoc Concepts89509
! Node: Taglets89753
! Node: Writing Doclets89936
! Node: Doclet Invocation Interface90276
! Node: Using AbstractDoclet91068
! Node: GNU Doclet SPI94062
! Node: XHTML Fragments95534
! Node: First Sentence Detector96967
! Node: Adding Custom Resources98729
! Node: I18N Issues100425
! Node: Language Resources100927
! Node: Message Formats104591
  
  End Tag Table
--- 3048,3146 ----
  string that will then be used either as a prompt for User input or as
  output.
  
!    If you are translating a 'messages.properties' be careful not to
  alter text between curly braces.
  
  
  
  Tag Table:
! Node: Top1103
! Node: Applet Tools6822
! Node: appletviewer Tool7395
! Node: gcjwebplugin10513
! Node: Security Tools10825
! Node: jarsigner Tool11478
! Node: Common jarsigner Options12525
! Node: Signing Options13840
! Node: Verification Options16426
! Node: keytool Tool17013
! Node: Getting Help21462
! Node: Common keytool Options22203
! Ref: alias22477
! Ref: keyalg22861
! Ref: keysize23092
! Ref: validity23358
! Ref: storetype23574
! Ref: storepass23906
! Ref: keystore24103
! Ref: provider24646
! Ref: file25054
! Ref: verbose25528
! Node: Distinguished Names25619
! Ref: dn25813
! Node: Add/Update Commands26880
! Node: Command -genkey27408
! Node: Command -import29821
! Node: Command -selfcert32968
! Node: Command -cacert35151
! Node: Command -identitydb36204
! Node: Export Commands36861
! Node: Command -certreq37177
! Node: Command -export39588
! Node: Display Commands40786
! Node: Command -list41118
! Node: Command -printcert42251
! Node: Management Commands42634
! Node: Command -keyclone43066
! Node: Command -storepasswd44469
! Node: Command -keypasswd45197
! Node: Command -delete46391
! Node: Other Tools47013
! Node: jar Tool47855
! Node: javah Tool49245
! Node: gcjh Tool50462
! Node: native2ascii Tool51570
! Node: orbd Tool52029
! Node: serialver Tool52757
! Node: rmid Tool53224
! Node: rmiregistry Tool54163
! Node: tnameserv Tool55001
! Node: gjdoc Tool55623
! Node: Invoking the Standard Doclet57612
! Node: Option Summary by Type58767
! Node: Source Set Options61196
! Node: Source Format Options63059
! Node: Interlinking Options64575
! Node: Generation Options67356
! Node: Taglet Options73463
! Node: Doclet Options75691
! Node: Decoration Options77261
! Node: Output Control Options81360
! Node: Verbosity Options84897
! Node: Virtual Machine Options85242
! Node: Invoking a Custom Doclet86638
! Node: Gjdoc Option Summary87313
! Node: Other Doclets87493
! Node: Built-in Doclets87721
! Node: Using TexiDoclet87976
! Node: Using XmlDoclet88198
! Node: Using IspellDoclet88423
! Node: Using DebugDoclet88651
! Node: Third-party Doclets88851
! Node: DocBook Doclet89067
! Node: PDFDoclet89210
! Node: JUnitDoclet89363
! Node: Gjdoc Concepts89497
! Node: Taglets89741
! Node: Writing Doclets89924
! Node: Doclet Invocation Interface90264
! Node: Using AbstractDoclet91056
! Node: GNU Doclet SPI94049
! Node: XHTML Fragments95521
! Node: First Sentence Detector96954
! Node: Adding Custom Resources98718
! Node: I18N Issues100415
! Node: Language Resources100917
! Node: Message Formats104587
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gappletviewer.1 gcc-6.5.0/libjava/classpath/doc/gappletviewer.1
*** gcc-6.4.0/libjava/classpath/doc/gappletviewer.1	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/gappletviewer.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GAPPLETVIEWER 1"
! .TH GAPPLETVIEWER 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GAPPLETVIEWER 1"
! .TH GAPPLETVIEWER 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gjar.1 gcc-6.5.0/libjava/classpath/doc/gjar.1
*** gcc-6.4.0/libjava/classpath/doc/gjar.1	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/gjar.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GJAR 1"
! .TH GJAR 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GJAR 1"
! .TH GJAR 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gjarsigner.1 gcc-6.5.0/libjava/classpath/doc/gjarsigner.1
*** gcc-6.4.0/libjava/classpath/doc/gjarsigner.1	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/gjarsigner.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GJARSIGNER 1"
! .TH GJARSIGNER 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GJARSIGNER 1"
! .TH GJARSIGNER 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** Use this option to specify the password
*** 196,202 ****
  If this option is omitted, the tool will first attempt to unlock the \fIKey Entry\fR using the same password protecting the key store. If this fails, you will then be prompted to provide a password.
  .IP "\fB\-sigfile\fR \fI\s-1NAME\s0\fR" 4
  .IX Item "-sigfile NAME"
! Use this option to designate a literal that will be used to construct file names for both the \f(CW\*(C`.SF\*(C'\fR and \f(CW\*(C`.DSA\*(C'\fR signature files. These files  will be generated, by the tool, and placed in the \fIMETA-INF\fR directory of the signed \s-1JAR. \s0 Permissible characters for \fI\s-1NAME\s0\fR must be in the range \*(L"a\-zA\-Z0\-9_\-\*(R".  All characters will be converted to upper-case ones.
  .Sp
  If this option is missing, the first eight characters of the \fI\s-1ALIAS\s0\fR argument will be used. When this is the case, any character in \fI\s-1ALIAS\s0\fR that is outside the permissible range of characters will be replaced by an underscore.
  .IP "\fB\-signedjar\fR \fI\s-1FILE\s0\fR" 4
--- 192,198 ----
  If this option is omitted, the tool will first attempt to unlock the \fIKey Entry\fR using the same password protecting the key store. If this fails, you will then be prompted to provide a password.
  .IP "\fB\-sigfile\fR \fI\s-1NAME\s0\fR" 4
  .IX Item "-sigfile NAME"
! Use this option to designate a literal that will be used to construct file names for both the \f(CW\*(C`.SF\*(C'\fR and \f(CW\*(C`.DSA\*(C'\fR signature files. These files  will be generated, by the tool, and placed in the \fIMETA-INF\fR directory of the signed \s-1JAR.\s0  Permissible characters for \fI\s-1NAME\s0\fR must be in the range \*(L"a\-zA\-Z0\-9_\-\*(R".  All characters will be converted to upper-case ones.
  .Sp
  If this option is missing, the first eight characters of the \fI\s-1ALIAS\s0\fR argument will be used. When this is the case, any character in \fI\s-1ALIAS\s0\fR that is outside the permissible range of characters will be replaced by an underscore.
  .IP "\fB\-signedjar\fR \fI\s-1FILE\s0\fR" 4
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gjavah.1 gcc-6.5.0/libjava/classpath/doc/gjavah.1
*** gcc-6.4.0/libjava/classpath/doc/gjavah.1	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/gjavah.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GJAVAH 1"
! .TH GJAVAH 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GJAVAH 1"
! .TH GJAVAH 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gjdoc.1 gcc-6.5.0/libjava/classpath/doc/gjdoc.1
*** gcc-6.4.0/libjava/classpath/doc/gjdoc.1	Tue Jul  4 09:38:45 2017
--- gcc-6.5.0/libjava/classpath/doc/gjdoc.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GJDOC 1"
! .TH GJDOC 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GJDOC 1"
! .TH GJDOC 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** This option can be given multiple times.
*** 746,752 ****
  .IX Item "-overview file"
  Add the \s-1XHTML\s0 body fragment from \fIfile\fR to the overview page.
  .Sp
! \&\fIfile\fR should contain an \s-1XHTML\s0 fragment with the \s-1HTML \s0\fBbody\fR
  tag as the root node.
  .Sp
  This option can be used to supply a description of the documentation
--- 742,748 ----
  .IX Item "-overview file"
  Add the \s-1XHTML\s0 body fragment from \fIfile\fR to the overview page.
  .Sp
! \&\fIfile\fR should contain an \s-1XHTML\s0 fragment with the \s-1HTML\s0 \fBbody\fR
  tag as the root node.
  .Sp
  This option can be used to supply a description of the documentation
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gkeytool.1 gcc-6.5.0/libjava/classpath/doc/gkeytool.1
*** gcc-6.4.0/libjava/classpath/doc/gkeytool.1	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/gkeytool.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GKEYTOOL 1"
! .TH GKEYTOOL 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GKEYTOOL 1"
! .TH GKEYTOOL 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
*************** Add, to a key store, \fIKey Entries\fR (
*** 182,188 ****
  Generate a new self-signed \fITrusted Certificate\fR.
  .IP "\fB\-cacert [\fR\fI\s-1OPTION\s0\fR\fB]...\fR" 4
  .IX Item "-cacert [OPTION]..."
! Import a \s-1CA \s0\fITrusted Certificate\fR.
  .IP "\fB\-identitydb [\fR\fI\s-1OPTION\s0\fR\fB]...\fR" 4
  .IX Item "-identitydb [OPTION]..."
  \&\fB\s-1NOT IMPLEMENTED YET\s0\fR.Import a \s-1JDK 1.1\s0 style Identity Database.
--- 178,184 ----
  Generate a new self-signed \fITrusted Certificate\fR.
  .IP "\fB\-cacert [\fR\fI\s-1OPTION\s0\fR\fB]...\fR" 4
  .IX Item "-cacert [OPTION]..."
! Import a \s-1CA\s0 \fITrusted Certificate\fR.
  .IP "\fB\-identitydb [\fR\fI\s-1OPTION\s0\fR\fB]...\fR" 4
  .IX Item "-identitydb [OPTION]..."
  \&\fB\s-1NOT IMPLEMENTED YET\s0\fR.Import a \s-1JDK 1.1\s0 style Identity Database.
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gnative2ascii.1 gcc-6.5.0/libjava/classpath/doc/gnative2ascii.1
*** gcc-6.4.0/libjava/classpath/doc/gnative2ascii.1	Tue Jul  4 09:38:44 2017
--- gcc-6.5.0/libjava/classpath/doc/gnative2ascii.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GNATIVE2ASCII 1"
! .TH GNATIVE2ASCII 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GNATIVE2ASCII 1"
! .TH GNATIVE2ASCII 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gorbd.1 gcc-6.5.0/libjava/classpath/doc/gorbd.1
*** gcc-6.4.0/libjava/classpath/doc/gorbd.1	Tue Jul  4 09:38:45 2017
--- gcc-6.5.0/libjava/classpath/doc/gorbd.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GORBD 1"
! .TH GORBD 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GORBD 1"
! .TH GORBD 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/grmid.1 gcc-6.5.0/libjava/classpath/doc/grmid.1
*** gcc-6.4.0/libjava/classpath/doc/grmid.1	Tue Jul  4 09:38:45 2017
--- gcc-6.5.0/libjava/classpath/doc/grmid.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GRMID 1"
! .TH GRMID 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GRMID 1"
! .TH GRMID 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/grmiregistry.1 gcc-6.5.0/libjava/classpath/doc/grmiregistry.1
*** gcc-6.4.0/libjava/classpath/doc/grmiregistry.1	Tue Jul  4 09:38:45 2017
--- gcc-6.5.0/libjava/classpath/doc/grmiregistry.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GRMIREGISTRY 1"
! .TH GRMIREGISTRY 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GRMIREGISTRY 1"
! .TH GRMIREGISTRY 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gserialver.1 gcc-6.5.0/libjava/classpath/doc/gserialver.1
*** gcc-6.4.0/libjava/classpath/doc/gserialver.1	Tue Jul  4 09:38:45 2017
--- gcc-6.5.0/libjava/classpath/doc/gserialver.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GSERIALVER 1"
! .TH GSERIALVER 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GSERIALVER 1"
! .TH GSERIALVER 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/classpath/doc/gtnameserv.1 gcc-6.5.0/libjava/classpath/doc/gtnameserv.1
*** gcc-6.4.0/libjava/classpath/doc/gtnameserv.1	Tue Jul  4 09:38:45 2017
--- gcc-6.5.0/libjava/classpath/doc/gtnameserv.1	Fri Oct 26 10:11:17 2018
***************
*** 1,4 ****
! .\" Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
--- 1,4 ----
! .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
  .\"
  .\" Standard preamble:
  .\" ========================================================================
***************
*** 46,52 ****
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is turned on, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
--- 46,52 ----
  .ie \n(.g .ds Aq \(aq
  .el       .ds Aq '
  .\"
! .\" If the F register is >0, we'll generate index entries on stderr for
  .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  .\" entries marked with X<> in POD.  Of course, you'll have to process the
  .\" output yourself in some meaningful fashion.
***************
*** 54,73 ****
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .nr rF 0
! .if \n(.g .if rF .nr rF 1
! .if (\n(rF:(\n(.g==0)) \{
! .    if \nF \{
! .        de IX
! .        tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .        if !\nF==2 \{
! .            nr % 0
! .            nr F 2
! .        \}
  .    \}
  .\}
- .rr rF
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
--- 54,69 ----
  .\" Avoid warning from groff about undefined register 'F'.
  .de IX
  ..
! .if !\nF .nr F 0
! .if \nF>0 \{\
! .    de IX
! .    tm Index:\\$1\t\\n%\t"\\$2"
  ..
! .    if !\nF==2 \{\
! .        nr % 0
! .        nr F 2
  .    \}
  .\}
  .\"
  .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  .\" Fear.  Run.  Save yourself.  No user-serviceable parts.
***************
*** 133,139 ****
  .\" ========================================================================
  .\"
  .IX Title "GTNAMESERV 1"
! .TH GTNAMESERV 1 "2017-07-04" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
--- 129,135 ----
  .\" ========================================================================
  .\"
  .IX Title "GTNAMESERV 1"
! .TH GTNAMESERV 1 "2018-10-26" "0.99.1-pre" "GNU"
  .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
  .\" way too many mistakes in technical documents.
  .if n .ad l
diff -Nrcpad gcc-6.4.0/libjava/include/i386-signal.h gcc-6.5.0/libjava/include/i386-signal.h
*** gcc-6.4.0/libjava/include/i386-signal.h	Tue Dec 20 12:18:26 2011
--- gcc-6.5.0/libjava/include/i386-signal.h	Thu Sep  7 07:20:51 2017
*************** static void _Jv_##_name (int, siginfo_t
*** 29,35 ****
  #define HANDLE_DIVIDE_OVERFLOW						\
  do									\
  {									\
!   struct ucontext *_uc = (struct ucontext *)_p;				\
    gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
    unsigned char *_eip = (unsigned char *)_gregs[REG_EIP];		\
  									\
--- 29,35 ----
  #define HANDLE_DIVIDE_OVERFLOW						\
  do									\
  {									\
!   ucontext_t *_uc = (ucontext_t *)_p;					\
    gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
    unsigned char *_eip = (unsigned char *)_gregs[REG_EIP];		\
  									\
diff -Nrcpad gcc-6.4.0/libjava/include/s390-signal.h gcc-6.5.0/libjava/include/s390-signal.h
*** gcc-6.4.0/libjava/include/s390-signal.h	Mon Jan  3 20:52:22 2011
--- gcc-6.5.0/libjava/include/s390-signal.h	Thu Sep  7 07:20:51 2017
*************** do									\
*** 51,57 ****
    struct                                                                \
    {                                                                     \
      unsigned long int uc_flags;                                         \
!     struct ucontext *uc_link;                                           \
      stack_t uc_stack;                                                   \
      mcontext_t uc_mcontext;                                             \
      unsigned long sigmask[2];                                           \
--- 51,57 ----
    struct                                                                \
    {                                                                     \
      unsigned long int uc_flags;                                         \
!     ucontext_t *uc_link;                                                \
      stack_t uc_stack;                                                   \
      mcontext_t uc_mcontext;                                             \
      unsigned long sigmask[2];                                           \
diff -Nrcpad gcc-6.4.0/libjava/include/x86_64-signal.h gcc-6.5.0/libjava/include/x86_64-signal.h
*** gcc-6.4.0/libjava/include/x86_64-signal.h	Fri Jan  4 12:49:55 2013
--- gcc-6.5.0/libjava/include/x86_64-signal.h	Thu Sep  7 07:20:51 2017
*************** static void _Jv_##_name (int, siginfo_t
*** 28,34 ****
  #define HANDLE_DIVIDE_OVERFLOW						\
  do									\
  {									\
!   struct ucontext *_uc = (struct ucontext *)_p;				\
    gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
    unsigned char *_rip = (unsigned char *)_gregs[REG_RIP];		\
  									\
--- 28,34 ----
  #define HANDLE_DIVIDE_OVERFLOW						\
  do									\
  {									\
!   ucontext_t *_uc = (ucontext_t *)_p;					\
    gregset_t &_gregs = _uc->uc_mcontext.gregs;				\
    unsigned char *_rip = (unsigned char *)_gregs[REG_RIP];		\
  									\
diff -Nrcpad gcc-6.4.0/libjava/libltdl/ChangeLog gcc-6.5.0/libjava/libltdl/ChangeLog
*** gcc-6.4.0/libjava/libltdl/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libjava/libltdl/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libmpx/ChangeLog gcc-6.5.0/libmpx/ChangeLog
*** gcc-6.4.0/libmpx/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libmpx/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libobjc/ChangeLog gcc-6.5.0/libobjc/ChangeLog
*** gcc-6.4.0/libobjc/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libobjc/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/liboffloadmic/ChangeLog gcc-6.5.0/liboffloadmic/ChangeLog
*** gcc-6.4.0/liboffloadmic/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/liboffloadmic/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libquadmath/ChangeLog gcc-6.5.0/libquadmath/ChangeLog
*** gcc-6.4.0/libquadmath/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libquadmath/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,12 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2017-09-15  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR libquadmath/65757
+ 	* math/roundq.c: Cherry-pick upstream glibc 2015-04-28 change.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libquadmath/libquadmath.info gcc-6.5.0/libquadmath/libquadmath.info
*** gcc-6.4.0/libquadmath/libquadmath.info	Tue Jul  4 09:34:12 2017
--- gcc-6.5.0/libquadmath/libquadmath.info	Fri Oct 26 10:10:29 2018
***************
*** 1,5 ****
! This is libquadmath.info, produced by makeinfo version 4.13 from
! /space/rguenther/gcc-6.4.0/gcc-6.4.0/libquadmath/libquadmath.texi.
  
  Copyright (C) 2010-2016 Free Software Foundation, Inc.
  
--- 1,5 ----
! This is libquadmath.info, produced by makeinfo version 6.4 from
! libquadmath.texi.
  
  Copyright (C) 2010-2016 Free Software Foundation, Inc.
  
*************** Copyright (C) 2010-2016 Free Software Fo
*** 11,19 ****
       below.  A copy of the license is included in the section entitled
       "GNU Free Documentation License."
  
!      (a) The FSF's Back-Cover Text is: "You have the freedom to copy
!      and modify this GNU manual.
! 
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * libquadmath: (libquadmath).                  GCC Quad-Precision Math Library
--- 11,18 ----
       below.  A copy of the license is included in the section entitled
       "GNU Free Documentation License."
  
!      (a) The FSF's Back-Cover Text is: "You have the freedom to copy and
!      modify this GNU manual.
  INFO-DIR-SECTION GNU Libraries
  START-INFO-DIR-ENTRY
  * libquadmath: (libquadmath).                  GCC Quad-Precision Math Library
*************** Floor Boston, MA 02110-1301 USA
*** 34,41 ****
       below.  A copy of the license is included in the section entitled
       "GNU Free Documentation License."
  
!      (a) The FSF's Back-Cover Text is: "You have the freedom to copy
!      and modify this GNU manual.
  
  
  File: libquadmath.info,  Node: Top,  Next: Typedef and constants,  Up: (dir)
--- 33,40 ----
       below.  A copy of the license is included in the section entitled
       "GNU Free Documentation License."
  
!      (a) The FSF's Back-Cover Text is: "You have the freedom to copy and
!      modify this GNU manual.
  
  
  File: libquadmath.info,  Node: Top,  Next: Typedef and constants,  Up: (dir)
*************** File: libquadmath.info,  Node: Typedef a
*** 63,124 ****
  1 Typedef and constants
  ***********************
  
! The following data type has been defined via `typedef'.
  
! `__complex128': `__float128'-based complex number
  
     The following macros are defined, which give the numeric limits of
! the `__float128' data type.
! 
! `FLT128_MAX': largest finite number
! 
! `FLT128_MIN': smallest positive number with full precision
  
! `FLT128_EPSILON': difference between 1 and the next larger
       representable number
  
! `FLT128_DENORM_MIN': smallest positive denormalized number
! 
! `FLT128_MANT_DIG': number of digits in the mantissa (bit precision)
! 
! `FLT128_MIN_EXP': maximal negative exponent
! 
! `FLT128_MAX_EXP': maximal positive exponent
! 
! `FLT128_DIG': number of decimal digits in the mantissa
! 
! `FLT128_MIN_10_EXP': maximal negative decimal exponent
! 
! `FLT128_MAX_10_EXP': maximal positive decimal exponent
! 
!    The following mathematical constants of type `__float128' are
  defined.
  
! `M_Eq': the constant e (Euler's number)
! 
! `M_LOG2Eq': binary logarithm of 2
! 
! `M_LOG10Eq': common, decimal logarithm of 2
! 
! `M_LN2q': natural logarithm of 2
! 
! `M_LN10q': natural logarithm of 10
! 
! `M_PIq': pi
! 
! `M_PI_2q': pi divided by two
! 
! `M_PI_4q': pi divided by four
! 
! `M_1_PIq': one over pi
! 
! `M_2_PIq': one over two pi
! 
! `M_2_SQRTPIq': two over square root of pi
! 
! `M_SQRT2q': square root of 2
! 
! `M_SQRT1_2q': one over square root of 2
  
  
  File: libquadmath.info,  Node: Math Library Routines,  Next: I/O Library Routines,  Prev: Typedef and constants,  Up: Top
--- 62,102 ----
  1 Typedef and constants
  ***********************
  
! The following data type has been defined via 'typedef'.
  
! '__complex128': '__float128'-based complex number
  
     The following macros are defined, which give the numeric limits of
! the '__float128' data type.
  
! 'FLT128_MAX': largest finite number
! 'FLT128_MIN': smallest positive number with full precision
! 'FLT128_EPSILON': difference between 1 and the next larger
       representable number
+ 'FLT128_DENORM_MIN': smallest positive denormalized number
+ 'FLT128_MANT_DIG': number of digits in the mantissa (bit precision)
+ 'FLT128_MIN_EXP': maximal negative exponent
+ 'FLT128_MAX_EXP': maximal positive exponent
+ 'FLT128_DIG': number of decimal digits in the mantissa
+ 'FLT128_MIN_10_EXP': maximal negative decimal exponent
+ 'FLT128_MAX_10_EXP': maximal positive decimal exponent
  
!    The following mathematical constants of type '__float128' are
  defined.
  
! 'M_Eq': the constant e (Euler's number)
! 'M_LOG2Eq': binary logarithm of 2
! 'M_LOG10Eq': common, decimal logarithm of 2
! 'M_LN2q': natural logarithm of 2
! 'M_LN10q': natural logarithm of 10
! 'M_PIq': pi
! 'M_PI_2q': pi divided by two
! 'M_PI_4q': pi divided by four
! 'M_1_PIq': one over pi
! 'M_2_PIq': one over two pi
! 'M_2_SQRTPIq': two over square root of pi
! 'M_SQRT2q': square root of 2
! 'M_SQRT1_2q': one over square root of 2
  
  
  File: libquadmath.info,  Node: Math Library Routines,  Next: I/O Library Routines,  Prev: Typedef and constants,  Up: Top
*************** File: libquadmath.info,  Node: Math Libr
*** 128,313 ****
  
  The following mathematical functions are available:
  
! `acosq': arc cosine function
! 
! `acoshq': inverse hyperbolic cosine function
! 
! `asinq': arc sine function
! 
! `asinhq': inverse hyperbolic sine function
! 
! `atanq': arc tangent function
! 
! `atanhq': inverse hyperbolic tangent function
! 
! `atan2q': arc tangent function
! 
! `cbrtq': cube root function
! 
! `ceilq': ceiling value function
! 
! `copysignq': copy sign of a number
! 
! `coshq': hyperbolic cosine function
! 
! `cosq': cosine function
! 
! `erfq': error function
! 
! `erfcq': complementary error function
! 
! `expq': exponential function
! 
! `expm1q': exponential minus 1 function
! 
! `fabsq': absolute value function
! 
! `fdimq': positive difference function
! 
! `finiteq': check finiteness of value
! 
! `floorq': floor value function
! 
! `fmaq': fused multiply and add
! 
! `fmaxq': determine maximum of two values
! 
! `fminq': determine minimum of two values
! 
! `fmodq': remainder value function
! 
! `frexpq': extract mantissa and exponent
! 
! `hypotq': Eucledian distance function
! 
! `ilogbq': get exponent of the value
! 
! `isinfq': check for infinity
! 
! `isnanq': check for not a number
! 
! `j0q': Bessel function of the first kind, first order
! 
! `j1q': Bessel function of the first kind, second order
! 
! `jnq': Bessel function of the first kind, N-th order
! 
! `ldexpq': load exponent of the value
! 
! `lgammaq': logarithmic gamma function
! 
! `llrintq': round to nearest integer value
! 
! `llroundq': round to nearest integer value away from zero
! 
! `logbq': get exponent of the value
! 
! `logq': natural logarithm function
! 
! `log10q': base 10 logarithm function
! 
! `log1pq': compute natural logarithm of the value plus one
! 
! `log2q': base 2 logarithm function
! 
! `lrintq': round to nearest integer value
! 
! `lroundq': round to nearest integer value away from zero
! 
! `modfq': decompose the floating-point number
! 
! `nanq': return quiet NaN
! 
! `nearbyintq': round to nearest integer
! 
! `nextafterq': next representable floating-point number
! 
! `powq': power function
! 
! `remainderq': remainder function
! 
! `remquoq': remainder and part of quotient
! 
! `rintq': round-to-nearest integral value
! 
! `roundq': round-to-nearest integral value, return `__float128'
! 
! `scalblnq': compute exponent using `FLT_RADIX'
! 
! `scalbnq': compute exponent using `FLT_RADIX'
! 
! `signbitq': return sign bit
! 
! `sincosq': calculate sine and cosine simultaneously
! 
! `sinhq': hyperbolic sine function
! 
! `sinq': sine function
! 
! `sqrtq': square root function
! 
! `tanq': tangent function
! 
! `tanhq': hyperbolic tangent function
! 
! `tgammaq': true gamma function
! 
! `truncq': round to integer, towards zero
! 
! `y0q': Bessel function of the second kind, first order
! 
! `y1q': Bessel function of the second kind, second order
! 
! `ynq': Bessel function of the second kind, N-th order
! 
! `cabsq' complex absolute value function
! 
! `cargq': calculate the argument
! 
! `cimagq' imaginary part of complex number
! 
! `crealq': real part of complex number
! 
! `cacoshq': complex arc hyperbolic cosine function
! 
! `cacosq': complex arc cosine function
! 
! `casinhq': complex arc hyperbolic sine function
! 
! `casinq': complex arc sine function
! 
! `catanhq': complex arc hyperbolic tangent function
! 
! `catanq': complex arc tangent function
! 
! `ccosq' complex cosine function:
! 
! `ccoshq': complex hyperbolic cosine function
! 
! `cexpq': complex exponential function
! 
! `cexpiq': computes the exponential function of "i" times a
       real value
! 
! `clogq': complex natural logarithm
! 
! `clog10q': complex base 10 logarithm
! 
! `conjq': complex conjugate function
! 
! `cpowq': complex power function
! 
! `cprojq': project into Riemann Sphere
! 
! `csinq': complex sine function
! 
! `csinhq': complex hyperbolic sine function
! 
! `csqrtq': complex square root
! 
! `ctanq': complex tangent function
! 
! `ctanhq': complex hyperbolic tangent function
  
  
  File: libquadmath.info,  Node: I/O Library Routines,  Next: GNU Free Documentation License,  Prev: Math Library Routines,  Up: Top
--- 106,202 ----
  
  The following mathematical functions are available:
  
! 'acosq': arc cosine function
! 'acoshq': inverse hyperbolic cosine function
! 'asinq': arc sine function
! 'asinhq': inverse hyperbolic sine function
! 'atanq': arc tangent function
! 'atanhq': inverse hyperbolic tangent function
! 'atan2q': arc tangent function
! 'cbrtq': cube root function
! 'ceilq': ceiling value function
! 'copysignq': copy sign of a number
! 'coshq': hyperbolic cosine function
! 'cosq': cosine function
! 'erfq': error function
! 'erfcq': complementary error function
! 'expq': exponential function
! 'expm1q': exponential minus 1 function
! 'fabsq': absolute value function
! 'fdimq': positive difference function
! 'finiteq': check finiteness of value
! 'floorq': floor value function
! 'fmaq': fused multiply and add
! 'fmaxq': determine maximum of two values
! 'fminq': determine minimum of two values
! 'fmodq': remainder value function
! 'frexpq': extract mantissa and exponent
! 'hypotq': Eucledian distance function
! 'ilogbq': get exponent of the value
! 'isinfq': check for infinity
! 'isnanq': check for not a number
! 'j0q': Bessel function of the first kind, first order
! 'j1q': Bessel function of the first kind, second order
! 'jnq': Bessel function of the first kind, N-th order
! 'ldexpq': load exponent of the value
! 'lgammaq': logarithmic gamma function
! 'llrintq': round to nearest integer value
! 'llroundq': round to nearest integer value away from zero
! 'logbq': get exponent of the value
! 'logq': natural logarithm function
! 'log10q': base 10 logarithm function
! 'log1pq': compute natural logarithm of the value plus one
! 'log2q': base 2 logarithm function
! 'lrintq': round to nearest integer value
! 'lroundq': round to nearest integer value away from zero
! 'modfq': decompose the floating-point number
! 'nanq': return quiet NaN
! 'nearbyintq': round to nearest integer
! 'nextafterq': next representable floating-point number
! 'powq': power function
! 'remainderq': remainder function
! 'remquoq': remainder and part of quotient
! 'rintq': round-to-nearest integral value
! 'roundq': round-to-nearest integral value, return '__float128'
! 'scalblnq': compute exponent using 'FLT_RADIX'
! 'scalbnq': compute exponent using 'FLT_RADIX'
! 'signbitq': return sign bit
! 'sincosq': calculate sine and cosine simultaneously
! 'sinhq': hyperbolic sine function
! 'sinq': sine function
! 'sqrtq': square root function
! 'tanq': tangent function
! 'tanhq': hyperbolic tangent function
! 'tgammaq': true gamma function
! 'truncq': round to integer, towards zero
! 'y0q': Bessel function of the second kind, first order
! 'y1q': Bessel function of the second kind, second order
! 'ynq': Bessel function of the second kind, N-th order
! 'cabsq' complex absolute value function
! 'cargq': calculate the argument
! 'cimagq' imaginary part of complex number
! 'crealq': real part of complex number
! 'cacoshq': complex arc hyperbolic cosine function
! 'cacosq': complex arc cosine function
! 'casinhq': complex arc hyperbolic sine function
! 'casinq': complex arc sine function
! 'catanhq': complex arc hyperbolic tangent function
! 'catanq': complex arc tangent function
! 'ccosq' complex cosine function:
! 'ccoshq': complex hyperbolic cosine function
! 'cexpq': complex exponential function
! 'cexpiq': computes the exponential function of "i" times a
       real value
! 'clogq': complex natural logarithm
! 'clog10q': complex base 10 logarithm
! 'conjq': complex conjugate function
! 'cpowq': complex power function
! 'cprojq': project into Riemann Sphere
! 'csinq': complex sine function
! 'csinhq': complex hyperbolic sine function
! 'csqrtq': complex square root
! 'ctanq': complex tangent function
! 'ctanhq': complex hyperbolic tangent function
  
  
  File: libquadmath.info,  Node: I/O Library Routines,  Next: GNU Free Documentation License,  Prev: Math Library Routines,  Up: Top
*************** File: libquadmath.info,  Node: I/O Libra
*** 317,341 ****
  
  * Menu:
  
! * `strtoflt128':          strtoflt128,          Convert from string
! * `quadmath_snprintf':    quadmath_snprintf,    Convert to string
  
  
  File: libquadmath.info,  Node: strtoflt128,  Next: quadmath_snprintf,  Up: I/O Library Routines
  
! 3.1 `strtoflt128' -- Convert from string
  ========================================
  
! The function `strtoflt128' converts a string into a `__float128' number.
  
  Syntax
!      `__float128 strtoflt128 (const char *s, char **sp)'
  
  _Arguments_:
!      S          input string
!      SP         the address of the next character in the string
  
!      The argument SP contains, if not `NULL', the address of the next
       character following the parts of the string, which have been read.
  
  Example
--- 206,230 ----
  
  * Menu:
  
! * 'strtoflt128':          strtoflt128,          Convert from string
! * 'quadmath_snprintf':    quadmath_snprintf,    Convert to string
  
  
  File: libquadmath.info,  Node: strtoflt128,  Next: quadmath_snprintf,  Up: I/O Library Routines
  
! 3.1 'strtoflt128' -- Convert from string
  ========================================
  
! The function 'strtoflt128' converts a string into a '__float128' number.
  
  Syntax
!      '__float128 strtoflt128 (const char *s, char **sp)'
  
  _Arguments_:
!      S           input string
!      SP          the address of the next character in the string
  
!      The argument SP contains, if not 'NULL', the address of the next
       character following the parts of the string, which have been read.
  
  Example
*************** Example
*** 353,381 ****
  
  File: libquadmath.info,  Node: quadmath_snprintf,  Prev: strtoflt128,  Up: I/O Library Routines
  
! 3.2 `quadmath_snprintf' -- Convert to string
  ============================================
  
! The function `quadmath_snprintf' converts a `__float128' floating-point
! number into a string.  It is a specialized alternative to `snprintf',
  where the format string is restricted to a single conversion specifier
! with `Q' modifier and conversion specifier `e', `E', `f', `F', `g',
! `G', `a' or `A', with no extra characters before or after the
! conversion specifier.  The `%m$' or `*m$' style must not be used in the
! format.
  
  Syntax
!      `int quadmath_snprintf (char *s, size_t size, const char *format,
       ...)'
  
  _Arguments_:
!      S          output string
!      SIZE       byte size of the string, including tailing NUL
!      FORMAT     conversion specifier string
  
  Note
       On some targets when supported by the C library hooks are installed
!      for `printf' family of functions, so that `printf ("%Qe", 1.2Q);'
       etc. works too.
  
  Example
--- 242,269 ----
  
  File: libquadmath.info,  Node: quadmath_snprintf,  Prev: strtoflt128,  Up: I/O Library Routines
  
! 3.2 'quadmath_snprintf' -- Convert to string
  ============================================
  
! The function 'quadmath_snprintf' converts a '__float128' floating-point
! number into a string.  It is a specialized alternative to 'snprintf',
  where the format string is restricted to a single conversion specifier
! with 'Q' modifier and conversion specifier 'e', 'E', 'f', 'F', 'g', 'G',
! 'a' or 'A', with no extra characters before or after the conversion
! specifier.  The '%m$' or '*m$' style must not be used in the format.
  
  Syntax
!      'int quadmath_snprintf (char *s, size_t size, const char *format,
       ...)'
  
  _Arguments_:
!      S           output string
!      SIZE        byte size of the string, including tailing NUL
!      FORMAT      conversion specifier string
  
  Note
       On some targets when supported by the C library hooks are installed
!      for 'printf' family of functions, so that 'printf ("%Qe", 1.2Q);'
       etc. works too.
  
  Example
*************** Example
*** 415,421 ****
              return 0;
            }
  
- 
  
  File: libquadmath.info,  Node: GNU Free Documentation License,  Next: Reporting Bugs,  Prev: I/O Library Routines,  Up: Top
  
--- 303,308 ----
*************** GNU Free Documentation License
*** 425,431 ****
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      `http://fsf.org/'
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
--- 312,318 ----
                       Version 1.3, 3 November 2008
  
       Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
!      <http://fsf.org/>
  
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.
*************** GNU Free Documentation License
*** 450,470 ****
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.
!      We recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it
!      can be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You
!      accept the license if you copy, modify or distribute the work in a
!      way requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
--- 337,357 ----
       free program should come with manuals providing the same freedoms
       that the software does.  But this License is not limited to
       software manuals; it can be used for any textual work, regardless
!      of subject matter or whether it is published as a printed book.  We
!      recommend this License principally for works whose purpose is
       instruction or reference.
  
    1. APPLICABILITY AND DEFINITIONS
  
       This License applies to any manual or other work, in any medium,
!      that contains a notice placed by the copyright holder saying it can
!      be distributed under the terms of this License.  Such a notice
       grants a world-wide, royalty-free license, unlimited in duration,
       to use that work under the conditions stated herein.  The
       "Document", below, refers to any such manual or work.  Any member
!      of the public is a licensee, and is addressed as "you".  You accept
!      the license if you copy, modify or distribute the work in a way
!      requiring permission under copyright law.
  
       A "Modified Version" of the Document means any work containing the
       Document or a portion of it, either copied verbatim, or with
*************** GNU Free Documentation License
*** 482,493 ****
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in
!      the notice that says that the Document is released under this
!      License.  If a section does not fit the above definition of
!      Secondary then it is not allowed to be designated as Invariant.
!      The Document may contain zero Invariant Sections.  If the Document
!      does not identify any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
--- 369,380 ----
       regarding them.
  
       The "Invariant Sections" are certain Secondary Sections whose
!      titles are designated, as being those of Invariant Sections, in the
!      notice that says that the Document is released under this License.
!      If a section does not fit the above definition of Secondary then it
!      is not allowed to be designated as Invariant.  The Document may
!      contain zero Invariant Sections.  If the Document does not identify
!      any Invariant Sections then there are none.
  
       The "Cover Texts" are certain short passages of text that are
       listed, as Front-Cover Texts or Back-Cover Texts, in the notice
*************** GNU Free Documentation License
*** 498,524 ****
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images
!      composed of pixels) generic paint programs or (for drawings) some
!      widely available drawing editor, and that is suitable for input to
!      text formatters or for automatic translation to a variety of
!      formats suitable for input to text formatters.  A copy made in an
!      otherwise Transparent file format whose markup, or absence of
!      markup, has been arranged to thwart or discourage subsequent
!      modification by readers is not Transparent.  An image format is
!      not Transparent if used for any substantial amount of text.  A
!      copy that is not "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and
!      standard-conforming simple HTML, PostScript or PDF designed for
!      human modification.  Examples of transparent image formats include
!      PNG, XCF and JPG.  Opaque formats include proprietary formats that
!      can be read and edited only by proprietary word processors, SGML or
!      XML for which the DTD and/or processing tools are not generally
!      available, and the machine-generated HTML, PostScript or PDF
!      produced by some word processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
--- 385,411 ----
       A "Transparent" copy of the Document means a machine-readable copy,
       represented in a format whose specification is available to the
       general public, that is suitable for revising the document
!      straightforwardly with generic text editors or (for images composed
!      of pixels) generic paint programs or (for drawings) some widely
!      available drawing editor, and that is suitable for input to text
!      formatters or for automatic translation to a variety of formats
!      suitable for input to text formatters.  A copy made in an otherwise
!      Transparent file format whose markup, or absence of markup, has
!      been arranged to thwart or discourage subsequent modification by
!      readers is not Transparent.  An image format is not Transparent if
!      used for any substantial amount of text.  A copy that is not
!      "Transparent" is called "Opaque".
  
       Examples of suitable formats for Transparent copies include plain
       ASCII without markup, Texinfo input format, LaTeX input format,
!      SGML or XML using a publicly available DTD, and standard-conforming
!      simple HTML, PostScript or PDF designed for human modification.
!      Examples of transparent image formats include PNG, XCF and JPG.
!      Opaque formats include proprietary formats that can be read and
!      edited only by proprietary word processors, SGML or XML for which
!      the DTD and/or processing tools are not generally available, and
!      the machine-generated HTML, PostScript or PDF produced by some word
!      processors for output purposes only.
  
       The "Title Page" means, for a printed book, the title page itself,
       plus such following pages as are needed to hold, legibly, the
*************** GNU Free Documentation License
*** 556,563 ****
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow
!      the conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
--- 443,450 ----
       may not use technical measures to obstruct or control the reading
       or further copying of the copies you make or distribute.  However,
       you may accept compensation in exchange for copies.  If you
!      distribute a large enough number of copies you must also follow the
!      conditions in section 3.
  
       You may also lend copies, under the same conditions stated above,
       and you may publicly display copies.
*************** GNU Free Documentation License
*** 571,582 ****
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the
!      title equally prominent and visible.  You may add other material
!      on the covers in addition.  Copying with changes limited to the
!      covers, as long as they preserve the title of the Document and
!      satisfy these conditions, can be treated as verbatim copying in
!      other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
--- 458,468 ----
       these Cover Texts: Front-Cover Texts on the front cover, and
       Back-Cover Texts on the back cover.  Both covers must also clearly
       and legibly identify you as the publisher of these copies.  The
!      front cover must present the full title with all words of the title
!      equally prominent and visible.  You may add other material on the
!      covers in addition.  Copying with changes limited to the covers, as
!      long as they preserve the title of the Document and satisfy these
!      conditions, can be treated as verbatim copying in other respects.
  
       If the required texts for either cover are too voluminous to fit
       legibly, you should put the first ones listed (as many as fit
*************** GNU Free Documentation License
*** 584,623 ****
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a
!      machine-readable Transparent copy along with each Opaque copy, or
!      state in or with each Opaque copy a computer-network location from
!      which the general network-using public has access to download
!      using public-standard network protocols a complete Transparent
!      copy of the Document, free of added material.  If you use the
!      latter option, you must take reasonably prudent steps, when you
!      begin distribution of Opaque copies in quantity, to ensure that
!      this Transparent copy will remain thus accessible at the stated
!      location until at least one year after the last time you
!      distribute an Opaque copy (directly or through your agents or
!      retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of
!      copies, to give them a chance to provide you with an updated
!      version of the Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with
!      the Modified Version filling the role of the Document, thus
!      licensing distribution and modification of the Modified Version to
!      whoever possesses a copy of it.  In addition, you must do these
!      things in the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of
!           previous versions (which should, if there were any, be listed
!           in the History section of the Document).  You may use the
!           same title as a previous version if the original publisher of
!           that version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
--- 470,508 ----
       adjacent pages.
  
       If you publish or distribute Opaque copies of the Document
!      numbering more than 100, you must either include a machine-readable
!      Transparent copy along with each Opaque copy, or state in or with
!      each Opaque copy a computer-network location from which the general
!      network-using public has access to download using public-standard
!      network protocols a complete Transparent copy of the Document, free
!      of added material.  If you use the latter option, you must take
!      reasonably prudent steps, when you begin distribution of Opaque
!      copies in quantity, to ensure that this Transparent copy will
!      remain thus accessible at the stated location until at least one
!      year after the last time you distribute an Opaque copy (directly or
!      through your agents or retailers) of that edition to the public.
  
       It is requested, but not required, that you contact the authors of
!      the Document well before redistributing any large number of copies,
!      to give them a chance to provide you with an updated version of the
!      Document.
  
    4. MODIFICATIONS
  
       You may copy and distribute a Modified Version of the Document
       under the conditions of sections 2 and 3 above, provided that you
!      release the Modified Version under precisely this License, with the
!      Modified Version filling the role of the Document, thus licensing
!      distribution and modification of the Modified Version to whoever
!      possesses a copy of it.  In addition, you must do these things in
!      the Modified Version:
  
         A. Use in the Title Page (and on the covers, if any) a title
!           distinct from that of the Document, and from those of previous
!           versions (which should, if there were any, be listed in the
!           History section of the Document).  You may use the same title
!           as a previous version if the original publisher of that
!           version gives permission.
  
         B. List on the Title Page, as authors, one or more persons or
            entities responsible for authorship of the modifications in
*************** GNU Free Documentation License
*** 647,677 ****
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on
!           the Title Page.  If there is no section Entitled "History" in
!           the Document, create one stating the title, year, authors,
!           and publisher of the Document as given on its Title Page,
!           then add an item describing the Modified Version as stated in
!           the previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in
!           the "History" section.  You may omit a network location for a
!           work that was published at least four years before the
!           Document itself, or if the original publisher of the version
!           it refers to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the
!           section all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document,
!           unaltered in their text and in their titles.  Section numbers
!           or the equivalent are not considered part of the section
!           titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
--- 532,561 ----
  
         I. Preserve the section Entitled "History", Preserve its Title,
            and add to it an item stating at least the title, year, new
!           authors, and publisher of the Modified Version as given on the
!           Title Page.  If there is no section Entitled "History" in the
!           Document, create one stating the title, year, authors, and
!           publisher of the Document as given on its Title Page, then add
!           an item describing the Modified Version as stated in the
!           previous sentence.
  
         J. Preserve the network location, if any, given in the Document
            for public access to a Transparent copy of the Document, and
            likewise the network locations given in the Document for
!           previous versions it was based on.  These may be placed in the
!           "History" section.  You may omit a network location for a work
!           that was published at least four years before the Document
!           itself, or if the original publisher of the version it refers
!           to gives permission.
  
         K. For any section Entitled "Acknowledgements" or "Dedications",
!           Preserve the Title of the section, and preserve in the section
!           all the substance and tone of each of the contributor
            acknowledgements and/or dedications given therein.
  
!        L. Preserve all the Invariant Sections of the Document, unaltered
!           in their text and in their titles.  Section numbers or the
!           equivalent are not considered part of the section titles.
  
         M. Delete any section Entitled "Endorsements".  Such a section
            may not be included in the Modified Version.
*************** GNU Free Documentation License
*** 684,694 ****
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option
!      designate some or all of these sections as invariant.  To do this,
!      add their titles to the list of Invariant Sections in the Modified
!      Version's license notice.  These titles must be distinct from any
!      other section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
--- 568,578 ----
  
       If the Modified Version includes new front-matter sections or
       appendices that qualify as Secondary Sections and contain no
!      material copied from the Document, you may at your option designate
!      some or all of these sections as invariant.  To do this, add their
!      titles to the list of Invariant Sections in the Modified Version's
!      license notice.  These titles must be distinct from any other
!      section titles.
  
       You may add a section Entitled "Endorsements", provided it contains
       nothing but endorsements of your Modified Version by various
*************** GNU Free Documentation License
*** 697,711 ****
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end
!      of the list of Cover Texts in the Modified Version.  Only one
!      passage of Front-Cover Text and one of Back-Cover Text may be
!      added by (or through arrangements made by) any one entity.  If the
!      Document already includes a cover text for the same cover,
!      previously added by you or by arrangement made by the same entity
!      you are acting on behalf of, you may not add another; but you may
!      replace the old one, on explicit permission from the previous
!      publisher that added the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
--- 581,595 ----
       definition of a standard.
  
       You may add a passage of up to five words as a Front-Cover Text,
!      and a passage of up to 25 words as a Back-Cover Text, to the end of
!      the list of Cover Texts in the Modified Version.  Only one passage
!      of Front-Cover Text and one of Back-Cover Text may be added by (or
!      through arrangements made by) any one entity.  If the Document
!      already includes a cover text for the same cover, previously added
!      by you or by arrangement made by the same entity you are acting on
!      behalf of, you may not add another; but you may replace the old
!      one, on explicit permission from the previous publisher that added
!      the old one.
  
       The author(s) and publisher(s) of the Document do not by this
       License give permission to use their names for publicity for or to
*************** GNU Free Documentation License
*** 715,722 ****
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination
!      all of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
--- 599,606 ----
  
       You may combine the Document with other documents released under
       this License, under the terms defined in section 4 above for
!      modified versions, provided that you include in the combination all
!      of the Invariant Sections of all of the original documents,
       unmodified, and list them all as Invariant Sections of your
       combined work in its license notice, and that you preserve all
       their Warranty Disclaimers.
*************** GNU Free Documentation License
*** 743,762 ****
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the
!      documents in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow
!      this License in all other respects regarding verbatim copying of
!      that document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of
!      a storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
--- 627,646 ----
       documents released under this License, and replace the individual
       copies of this License in the various documents with a single copy
       that is included in the collection, provided that you follow the
!      rules of this License for verbatim copying of each of the documents
!      in all other respects.
  
       You may extract a single document from such a collection, and
       distribute it individually under this License, provided you insert
!      a copy of this License into the extracted document, and follow this
!      License in all other respects regarding verbatim copying of that
!      document.
  
    7. AGGREGATION WITH INDEPENDENT WORKS
  
       A compilation of the Document or its derivatives with other
!      separate and independent documents or works, in or on a volume of a
!      storage or distribution medium, is called an "aggregate" if the
       copyright resulting from the compilation is not used to limit the
       legal rights of the compilation's users beyond what the individual
       works permit.  When the Document is included in an aggregate, this
*************** GNU Free Documentation License
*** 801,808 ****
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly
!      and finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
--- 685,692 ----
  
       However, if you cease all violation of this License, then your
       license from a particular copyright holder is reinstated (a)
!      provisionally, unless and until the copyright holder explicitly and
!      finally terminates your license, and (b) permanently, if the
       copyright holder fails to notify you of the violation by some
       reasonable means prior to 60 days after the cessation.
  
*************** GNU Free Documentation License
*** 814,846 ****
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from
!      you under this License.  If your rights have been terminated and
!      not permanently reinstated, receipt of a copy of some or all of
!      the same material does not give you any rights to use it.
  
!  10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      `http://www.gnu.org/copyleft/'.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If
!      the Document does not specify a version number of this License,
!      you may choose any version ever published (not as a draft) by the
!      Free Software Foundation.  If the Document specifies that a proxy
!      can decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!  11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
--- 698,730 ----
       after your receipt of the notice.
  
       Termination of your rights under this section does not terminate
!      the licenses of parties who have received copies or rights from you
!      under this License.  If your rights have been terminated and not
!      permanently reinstated, receipt of a copy of some or all of the
!      same material does not give you any rights to use it.
  
!   10. FUTURE REVISIONS OF THIS LICENSE
  
       The Free Software Foundation may publish new, revised versions of
       the GNU Free Documentation License from time to time.  Such new
       versions will be similar in spirit to the present version, but may
       differ in detail to address new problems or concerns.  See
!      <http://www.gnu.org/copyleft/>.
  
       Each version of the License is given a distinguishing version
       number.  If the Document specifies that a particular numbered
       version of this License "or any later version" applies to it, you
       have the option of following the terms and conditions either of
       that specified version or of any later version that has been
!      published (not as a draft) by the Free Software Foundation.  If the
!      Document does not specify a version number of this License, you may
!      choose any version ever published (not as a draft) by the Free
!      Software Foundation.  If the Document specifies that a proxy can
!      decide which future versions of this License can be used, that
       proxy's public statement of acceptance of a version permanently
       authorizes you to choose that version for the Document.
  
!   11. RELICENSING
  
       "Massive Multiauthor Collaboration Site" (or "MMC Site") means any
       World Wide Web server that publishes copyrightable works and also
*************** GNU Free Documentation License
*** 870,876 ****
       site under CC-BY-SA on the same site at any time before August 1,
       2009, provided the MMC is eligible for relicensing.
  
- 
  ADDENDUM: How to use this License for your documents
  ====================================================
  
--- 754,759 ----
*************** notices just after the title page:
*** 887,893 ****
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts." line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
--- 770,776 ----
         Free Documentation License''.
  
     If you have Invariant Sections, Front-Cover Texts and Back-Cover
! Texts, replace the "with...Texts."  line with this:
  
           with the Invariant Sections being LIST THEIR TITLES, with
           the Front-Cover Texts being LIST, and with the Back-Cover Texts
*************** combination of the three, merge those tw
*** 898,906 ****
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of
! free software license, such as the GNU General Public License, to
! permit their use in free software.
  
  
  File: libquadmath.info,  Node: Reporting Bugs,  Prev: GNU Free Documentation License,  Up: Top
--- 781,789 ----
  situation.
  
     If your document contains nontrivial examples of program code, we
! recommend releasing these examples in parallel under your choice of free
! software license, such as the GNU General Public License, to permit
! their use in free software.
  
  
  File: libquadmath.info,  Node: Reporting Bugs,  Prev: GNU Free Documentation License,  Up: Top
*************** File: libquadmath.info,  Node: Reporting
*** 909,926 ****
  ****************
  
  Bugs in the GCC Quad-Precision Math Library implementation should be
! reported via `http://gcc.gnu.org/bugs.html'.
  
  
  
  Tag Table:
! Node: Top1684
! Node: Typedef and constants2418
! Node: Math Library Routines3858
! Node: I/O Library Routines7698
! Node: strtoflt1288023
! Node: quadmath_snprintf8781
! Node: GNU Free Documentation License10989
! Node: Reporting Bugs36155
  
  End Tag Table
--- 792,809 ----
  ****************
  
  Bugs in the GCC Quad-Precision Math Library implementation should be
! reported via <http://gcc.gnu.org/bugs.html>.
  
  
  
  Tag Table:
! Node: Top1633
! Node: Typedef and constants2367
! Node: Math Library Routines3786
! Node: I/O Library Routines7537
! Node: strtoflt1287862
! Node: quadmath_snprintf8622
! Node: GNU Free Documentation License10832
! Node: Reporting Bugs35979
  
  End Tag Table
diff -Nrcpad gcc-6.4.0/libquadmath/math/roundq.c gcc-6.5.0/libquadmath/math/roundq.c
*** gcc-6.4.0/libquadmath/math/roundq.c	Wed Feb  6 22:03:54 2013
--- gcc-6.5.0/libquadmath/math/roundq.c	Fri Sep 15 21:30:40 2017
***************
*** 1,5 ****
  /* Round __float128 to integer away from zero.
!    Copyright (C) 1997, 1999 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and
  		  Jakub Jelinek <jj@ultra.linux.cz>, 1999.
--- 1,5 ----
  /* Round __float128 to integer away from zero.
!    Copyright (C) 1997-2017 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and
  		  Jakub Jelinek <jj@ultra.linux.cz>, 1999.
*************** roundq (__float128 x)
*** 32,38 ****
  
    GET_FLT128_WORDS64 (i0, i1, x);
    j0 = ((i0 >> 48) & 0x7fff) - 0x3fff;
!   if (j0 < 31)
      {
        if (j0 < 0)
  	{
--- 32,38 ----
  
    GET_FLT128_WORDS64 (i0, i1, x);
    j0 = ((i0 >> 48) & 0x7fff) - 0x3fff;
!   if (j0 < 48)
      {
        if (j0 < 0)
  	{
diff -Nrcpad gcc-6.4.0/libsanitizer/ChangeLog gcc-6.5.0/libsanitizer/ChangeLog
*** gcc-6.4.0/libsanitizer/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libsanitizer/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,52 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-15  Richard Biener  <rguenther@suse.de>
+ 
+ 	Backport from mainline
+ 	2018-03-19  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/84761
+ 	* sanitizer_common/sanitizer_linux_libcdep.cc (__GLIBC_PREREQ):
+ 	Define if not defined.
+ 	(DL_INTERNAL_FUNCTION): Don't define.
+ 	(InitTlsSize): For __i386__ if not compiled against glibc 2.27+
+ 	determine at runtime whether to use regparm(3), stdcall calling
+ 	convention for older glibcs or normal calling convention for
+ 	newer glibcs for call to _dl_get_tls_static_info.
+ 
+ 2017-09-23  Matthias Klose  <doko@ubuntu.com>
+ 
+ 	Backported from the gcc-7-branch:
+ 	2018-05-31  Matthias Klose  <doko@ubuntu.com>
+ 
+ 	PR sanitizer/86012
+ 	* sanitizer_common/sanitizer_platform_limits_posix.cc: Define
+ 	SIZEOF_STRUCT_USTAT for 32bit sparc.
+ 
+ 2017-09-21  Matthias Klose  <doko@ubuntu.com>
+ 
+ 	Backported from the gcc-7-branch:
+ 	2018-05-24  H.J. Lu  <hongjiu.lu@intel.com>
+ 
+ 	PR sanitizer/85835
+ 	* sanitizer_common/sanitizer_platform_limits_posix.cc: Don't
+ 	include <sys/ustat.h> for Linux.
+ 	(SIZEOF_STRUCT_USTAT): New.
+ 	(struct_ustat_sz): Use SIZEOF_STRUCT_USTAT for Linux.
+ 
+ 2017-09-07  Matthias Klose  <doko@ubuntu.com>
+ 
+ 	Backported from mainline
+ 	2017-07-14  Jakub Jelinek  <jakub@redhat.com>
+ 
+ 	PR sanitizer/81066
+ 	* sanitizer_common/sanitizer_linux.h: Cherry-pick upstream r307969.
+ 	* sanitizer_common/sanitizer_linux.cc: Likewise.
+ 	* sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc: Likewise.
+ 	* tsan/tsan_platform_linux.cc: Likewise.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_linux.cc gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_linux.cc
*** gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_linux.cc	Mon Nov 23 09:07:18 2015
--- gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_linux.cc	Thu Sep  7 07:15:24 2017
*************** uptr internal_prctl(int option, uptr arg
*** 546,553 ****
  }
  #endif
  
! uptr internal_sigaltstack(const struct sigaltstack *ss,
!                          struct sigaltstack *oss) {
    return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);
  }
  
--- 546,552 ----
  }
  #endif
  
! uptr internal_sigaltstack(const void *ss, void *oss) {
    return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);
  }
  
diff -Nrcpad gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_linux.h gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_linux.h
*** gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_linux.h	Wed Oct 21 07:32:45 2015
--- gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_linux.h	Thu Sep  7 07:15:24 2017
***************
*** 19,25 ****
  #include "sanitizer_platform_limits_posix.h"
  
  struct link_map;  // Opaque type returned by dlopen().
- struct sigaltstack;
  
  namespace __sanitizer {
  // Dirent structure for getdents(). Note that this structure is different from
--- 19,24 ----
*************** struct linux_dirent;
*** 28,35 ****
  
  // Syscall wrappers.
  uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
! uptr internal_sigaltstack(const struct sigaltstack* ss,
!                           struct sigaltstack* oss);
  uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
      __sanitizer_sigset_t *oldset);
  void internal_sigfillset(__sanitizer_sigset_t *set);
--- 27,33 ----
  
  // Syscall wrappers.
  uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
! uptr internal_sigaltstack(const void* ss, void* oss);
  uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
      __sanitizer_sigset_t *oldset);
  void internal_sigfillset(__sanitizer_sigset_t *set);
diff -Nrcpad gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc
*** gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc	Mon Nov 23 09:07:18 2015
--- gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_linux_libcdep.cc	Mon Oct 15 13:43:09 2018
*************** bool SanitizerGetThreadName(char *name,
*** 154,167 ****
  #endif
  }
  
! #if !SANITIZER_FREEBSD && !SANITIZER_ANDROID && !SANITIZER_GO
! static uptr g_tls_size;
  #endif
  
! #ifdef __i386__
! # define DL_INTERNAL_FUNCTION __attribute__((regparm(3), stdcall))
! #else
! # define DL_INTERNAL_FUNCTION
  #endif
  
  #if defined(__mips__) || defined(__powerpc64__)
--- 154,165 ----
  #endif
  }
  
! #ifndef __GLIBC_PREREQ
! #define __GLIBC_PREREQ(x, y) 0
  #endif
  
! #if !SANITIZER_FREEBSD && !SANITIZER_ANDROID && !SANITIZER_GO
! static uptr g_tls_size;
  #endif
  
  #if defined(__mips__) || defined(__powerpc64__)
*************** void InitTlsSize() {
*** 186,201 ****
  #if !SANITIZER_FREEBSD && !SANITIZER_ANDROID && !SANITIZER_GO
  // all current supported platforms have 16 bytes stack alignment
    const size_t kStackAlign = 16;
-   typedef void (*get_tls_func)(size_t*, size_t*) DL_INTERNAL_FUNCTION;
-   get_tls_func get_tls;
-   void *get_tls_static_info_ptr = dlsym(RTLD_NEXT, "_dl_get_tls_static_info");
-   CHECK_EQ(sizeof(get_tls), sizeof(get_tls_static_info_ptr));
-   internal_memcpy(&get_tls, &get_tls_static_info_ptr,
-                   sizeof(get_tls_static_info_ptr));
-   CHECK_NE(get_tls, 0);
    size_t tls_size = 0;
    size_t tls_align = 0;
!   get_tls(&tls_size, &tls_align);
    if (tls_align < kStackAlign)
      tls_align = kStackAlign;
    g_tls_size = RoundUpTo(tls_size, tls_align);
--- 184,216 ----
  #if !SANITIZER_FREEBSD && !SANITIZER_ANDROID && !SANITIZER_GO
  // all current supported platforms have 16 bytes stack alignment
    const size_t kStackAlign = 16;
    size_t tls_size = 0;
    size_t tls_align = 0;
!   void *get_tls_static_info_ptr = dlsym(RTLD_NEXT, "_dl_get_tls_static_info");
! #if defined(__i386__) && !__GLIBC_PREREQ(2, 27)
!   /* On i?86, _dl_get_tls_static_info used to be internal_function, i.e.
!      __attribute__((regparm(3), stdcall)) before glibc 2.27 and is normal
!      function in 2.27 and later.  */
!   if (!dlvsym(RTLD_NEXT, "glob", "GLIBC_2.27")) {
!     typedef void (*get_tls_func)(size_t*, size_t*)
!       __attribute__((regparm(3), stdcall));
!     get_tls_func get_tls;
!     CHECK_EQ(sizeof(get_tls), sizeof(get_tls_static_info_ptr));
!     internal_memcpy(&get_tls, &get_tls_static_info_ptr,
!                     sizeof(get_tls_static_info_ptr));
!     CHECK_NE(get_tls, 0);
!     get_tls(&tls_size, &tls_align);
!   } else
! #endif
!   {
!     typedef void (*get_tls_func)(size_t*, size_t*);
!     get_tls_func get_tls;
!     CHECK_EQ(sizeof(get_tls), sizeof(get_tls_static_info_ptr));
!     internal_memcpy(&get_tls, &get_tls_static_info_ptr,
!                     sizeof(get_tls_static_info_ptr));
!     CHECK_NE(get_tls, 0);
!     get_tls(&tls_size, &tls_align);
!   }
    if (tls_align < kStackAlign)
      tls_align = kStackAlign;
    g_tls_size = RoundUpTo(tls_size, tls_align);
diff -Nrcpad gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
*** gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc	Fri Feb 17 19:21:39 2017
--- gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc	Sun Sep 23 08:36:14 2018
*************** typedef struct user_fpregs elf_fpregset_
*** 150,156 ****
  # include <sys/procfs.h>
  #endif
  #include <sys/user.h>
- #include <sys/ustat.h>
  #include <linux/cyclades.h>
  #include <linux/if_eql.h>
  #include <linux/if_plip.h>
--- 150,155 ----
*************** namespace __sanitizer {
*** 243,249 ****
  #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
  
  #if SANITIZER_LINUX && !SANITIZER_ANDROID
!   unsigned struct_ustat_sz = sizeof(struct ustat);
    unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
    unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
  #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
--- 242,260 ----
  #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
  
  #if SANITIZER_LINUX && !SANITIZER_ANDROID
!   // Use pre-computed size of struct ustat to avoid <sys/ustat.h> which
!   // has been removed from glibc 2.28.
! #if defined(__aarch64__) || defined(__s390x__) || defined (__mips64) \
!   || defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) \
!   || defined(__x86_64__)
! #define SIZEOF_STRUCT_USTAT 32
! #elif defined(__arm__) || defined(__i386__) || defined(__mips__) \
!   || defined(__powerpc__) || defined(__s390__) || defined(__sparc__)
! #define SIZEOF_STRUCT_USTAT 20
! #else
! #error Unknown size of struct ustat
! #endif
!   unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
    unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
    unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
  #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
diff -Nrcpad gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
*** gcc-6.4.0/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc	Wed Oct 21 07:32:45 2015
--- gcc-6.5.0/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc	Thu Sep  7 07:15:24 2017
*************** static int TracerThread(void* argument)
*** 267,273 ****
  
    // Alternate stack for signal handling.
    InternalScopedBuffer<char> handler_stack_memory(kHandlerStackSize);
!   struct sigaltstack handler_stack;
    internal_memset(&handler_stack, 0, sizeof(handler_stack));
    handler_stack.ss_sp = handler_stack_memory.data();
    handler_stack.ss_size = kHandlerStackSize;
--- 267,273 ----
  
    // Alternate stack for signal handling.
    InternalScopedBuffer<char> handler_stack_memory(kHandlerStackSize);
!   stack_t handler_stack;
    internal_memset(&handler_stack, 0, sizeof(handler_stack));
    handler_stack.ss_sp = handler_stack_memory.data();
    handler_stack.ss_size = kHandlerStackSize;
diff -Nrcpad gcc-6.4.0/libsanitizer/tsan/tsan_platform_linux.cc gcc-6.5.0/libsanitizer/tsan/tsan_platform_linux.cc
*** gcc-6.4.0/libsanitizer/tsan/tsan_platform_linux.cc	Fri Aug 12 08:53:46 2016
--- gcc-6.5.0/libsanitizer/tsan/tsan_platform_linux.cc	Thu Sep  7 07:15:24 2017
*************** bool IsGlobalVar(uptr addr) {
*** 291,297 ****
  int ExtractResolvFDs(void *state, int *fds, int nfd) {
  #if SANITIZER_LINUX
    int cnt = 0;
!   __res_state *statp = (__res_state*)state;
    for (int i = 0; i < MAXNS && cnt < nfd; i++) {
      if (statp->_u._ext.nsaddrs[i] && statp->_u._ext.nssocks[i] != -1)
        fds[cnt++] = statp->_u._ext.nssocks[i];
--- 291,297 ----
  int ExtractResolvFDs(void *state, int *fds, int nfd) {
  #if SANITIZER_LINUX
    int cnt = 0;
!   struct __res_state *statp = (struct __res_state*)state;
    for (int i = 0; i < MAXNS && cnt < nfd; i++) {
      if (statp->_u._ext.nsaddrs[i] && statp->_u._ext.nssocks[i] != -1)
        fds[cnt++] = statp->_u._ext.nssocks[i];
diff -Nrcpad gcc-6.4.0/libssp/ChangeLog gcc-6.5.0/libssp/ChangeLog
*** gcc-6.4.0/libssp/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libssp/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/ChangeLog gcc-6.5.0/libstdc++-v3/ChangeLog
*** gcc-6.4.0/libstdc++-v3/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libstdc++-v3/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,699 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2018-10-25  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/87749
+ 	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
+ 	(basic_string::operator=(basic_string&&)): For short strings copy the
+ 	buffer inline. Only fall back to using assign(const basic_string&) to
+ 	do a deep copy when reallocation is needed.
+ 	* testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
+ 	New test.
+ 	* testsuite/21_strings/basic_string/modifiers/assign/char/
+ 	move_assign_optim.cc: New test.
+ 	* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
+ 	New test.
+ 	* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
+ 	move_assign_optim.cc: New test.
+ 
+ 2018-10-25  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 
+ 	Backport from mainline
+ 	2018-10-23  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/87704
+ 	* include/bits/unique_ptr.h (unique_ptr::unique_ptr(nullptr_t)): Do
+ 	not delegate to default constructor.
+ 	(unique_ptr<T[], D>::unique_ptr(nullptr_t)): Likewise.
+ 	* testsuite/20_util/unique_ptr/cons/incomplete.cc: New test.
+ 	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Adjust dg-error.
+ 	* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
+ 
+ 2018-10-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-10-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/87641
+ 	* include/bits/valarray_array.h (__valarray_sum): Use first element
+ 	to initialize accumulator instead of value-initializing it.
+ 	* testsuite/26_numerics/valarray/87641.cc: New test.
+ 
+ 2018-10-15  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* testsuite/22_locale/numpunct/members/char/3.cc: Adjust test to
+ 	account for change to glibc it_IT localedata (glibc bz#10797).
+ 
+ 2018-10-15  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/86751
+ 	* include/bits/stl_pair.h (__pair_base): New class with deleted copy
+ 	assignment operator.
+ 	(pair): Derive from __pair_base.
+ 	(pair::operator=): Remove deleted overload.
+ 	* python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
+ 	so that new base class isn't shown in GDB.
+ 	* testsuite/20_util/pair/86751.cc: New test.
+ 	* testsuite/20_util/pair/ref_assign.cc: New test.
+ 
+ 2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-08-30  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/ext/pointer.h (_Pointer_adapter): Define operators for
+ 	pointer arithmetic using long long offsets.
+ 	* testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
+ 	long long values.
+ 
+ 2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/87061
+ 	* include/experimental/regex [!_GLIBCXX_USE_CXX11_ABI]
+ 	(experimental::pmr::match_results, experimental::pmr::cmatch)
+ 	(experimental::pmr::smatch, experimental::pmr::wcmatch)
+ 	(experimental::pmr::wsmatch): Do not declare for gcc4-compatible ABI,
+ 	because COW strings don't support C++11 allocator model.
+ 	* include/experimental/string [!_GLIBCXX_USE_CXX11_ABI]
+ 	(experimental::pmr::basic_string, experimental::pmr::string)
+ 	(experimental::pmr::u16string, experimental::pmr::u32string)
+ 	(experimental::pmr::wstring): Likewise.
+ 
+ 	Backport from mainline
+ 	2018-08-15  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/experimental/regex: Remove begin/end macros for namespace.
+ 	* include/experimental/string: Likewise.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
+ 	New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_forward_list.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
+ 	New test.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
+ 	New test.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
+ 	New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_multimap.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_multiset.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
+ 	New test.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
+ 	New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_unordered_map.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_unordered_multimap.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_unordered_multiset.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/
+ 	pmr_typedefs_unordered_set.cc: New test.
+ 	* testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
+ 	New test.
+ 
+ 2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/70966
+ 	* include/experimental/memory_resource (__get_default_resource): Use
+ 	placement new to create an object with dynamic storage duration.
+ 
+ 	Backport from mainline
+ 	2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/70966
+ 	* include/experimental/memory_resource (__resource_adaptor_imp): Add
+ 	static assertions to enforce requirements on pointer types.
+ 	(__resource_adaptor_imp::get_allocator()): Add noexcept.
+ 	(new_delete_resource, null_memory_resource): Return address of an
+ 	object with dynamic storage duration.
+ 	(__null_memory_resource): Remove.
+ 	* testsuite/experimental/memory_resource/70966.cc: New.
+ 
+ 2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/77854
+ 	* doc/xml/manual/status_cxx1998.xml: Document size_type and
+ 	difference_type for containers.
+ 	* doc/html/*: Regenerate.
+ 
+ 2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/85098
+ 	* include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
+ 	(basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
+ 	(basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
+ 	(basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
+ 	definitions.
+ 	* include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
+ 	whitespace.
+ 	* testsuite/28_regex/basic_regex/85098.cc: New
+ 
+ 2018-10-08  Joseph Myers  <joseph@codesourcery.com>
+ 
+ 	Backport from mainline
+ 	2018-10-02  Joseph Myers  <joseph@codesourcery.com>
+ 
+ 	* testsuite/lib/libstdc++.exp (libstdc++_init): Use
+ 	-fno-show-column in default cxxflags.
+ 
+ 2018-08-08  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
+ 		    Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83982
+ 	* include/bits/vector.tcc (vector::_M_default_append(size_type)):
+ 	Default-construct new elements before moving existing ones.
+ 	* testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
+ 	New.
+ 
+ 	Backport from mainline
+ 	2017-12-01  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/std/type_traits (integral_constant): Make member functions
+ 	noexcept (LWG 2346).
+ 	* include/std/utility (integer_sequence): Likewise.
+ 
+ 	Backport from mainline
+ 	2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	LWG 3050 Fix cv-qualification of convertibility constraints
+ 	* include/std/chrono (duration, operator*, operator/, operator%): Use
+ 	const-qualified type as source type in is_convertible constraints.
+ 	* testsuite/20_util/duration/arithmetic/dr3050.cc: New.
+ 	* testsuite/20_util/duration/cons/dr3050.cc: New.
+ 	* testsuite/20_util/duration/literals/range.cc: Rename to...
+ 	* testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
+ 	dg-error lineno.
+ 
+ 	Backport from mainline
+ 	2017-11-16  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/std/future (shared_future): Add noexcept to copy constructor
+ 	and copy-assignment operator (LWG 2799).
+ 
+ 	Backport from mainline
+ 	2017-06-17  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/80893
+ 	* testsuite/23_containers/vector/bool/80893.cc: Add { target c++11 }.
+ 
+ 	Backport from mainline
+ 	2017-05-31  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/80893
+ 	* include/bits/stl_bvector.h (vector<bool>::_M_initialize): Avoid
+ 	null pointer dereference when size is zero.
+ 	* testsuite/23_containers/vector/bool/80893.cc: New.
+ 	* testsuite/util/testsuite_allocator.h (PointerBase::PointerBase):
+ 	Add non-explicit constructor from nullptr.
+ 	(PointerBase::derived() const): Add const-qualified overload.
+ 
+ 	Backport from mainline
+ 	2017-12-14  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/68519
+ 	* include/std/condition_variable (condition_variable::wait_for):
+ 	Convert duration to native clock's duration before addition.
+ 	* testsuite/30_threads/condition_variable/members/68519.cc: New test.
+ 
+ 	Backport from mainline
+ 	2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/86292
+ 	* include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
+ 	Add try-catch block.
+ 	* testsuite/23_containers/vector/cons/86292.cc: New.
+ 
+ 	Backport from mainline
+ 	2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* doc/xml/manual/using.xml: Document all headers for C++11 and later.
+ 	* doc/html/*: Regenerate.
+ 
+ 	Backport from mainline
+ 	2018-08-03  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* src/c++11/system_error.cc
+ 	(system_error_category::default_error_condition): Add workaround for
+ 	ENOTEMPTY and EEXIST having the same value on AIX.
+ 	* testsuite/19_diagnostics/error_category/system_category.cc: Add
+ 	extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.
+ 
+ 	Backport from mainline
+ 	2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/60555
+ 	* src/c++11/system_error.cc
+ 	(system_error_category::default_error_condition): New override to
+ 	check for POSIX errno values.
+ 	* testsuite/19_diagnostics/error_category/generic_category.cc: New
+ 	* testsuite/19_diagnostics/error_category/system_category.cc: New
+ 	test.
+ 
+ 	Backport from mainline
+ 	2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/86734
+ 	* include/bits/stl_iterator.h (reverse_iterator::operator->): Use
+ 	addressof (LWG 2188).
+ 	* testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
+ 
+ 	Backport from mainline
+ 	2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
+ 	[__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
+ 	little_endian element in bitmask.
+ 	* testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
+ 	* testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
+ 
+ 	PR libstdc++/66145
+ 	Backport from mainline
+ 	2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/85222
+ 	* src/c++11/cxx11-ios_failure.cc (__construct_ios_failure)
+ 	(__destroy_ios_failure, is_ios_failure_handler): New functions.
+ 	* src/c++11/ios.cc (__throw_ios_failure): Remove definition.
+ 	(_GLIBCXX_USE_CXX11_ABI): Don't define here.
+ 	* src/c++98/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
+ 	ios_failure.cc to rewrite type info for __ios_failure.
+ 	* src/c++98/Makefile.in: Regenerate.
+ 	* src/c++98/ios_failure.cc [_GLIBCXX_USE_DUAL_ABI]
+ 	(__iosfailure, __iosfailure_type_info): New types.
+ 	(__throw_ios_failure): Define here.
+ 	* testsuite/27_io/ios_base/failure/dual_abi.cc: New.
+ 	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
+ 	add -D_GLIBCXX_USE_CXX11_ABI=0 to dg-options.
+ 	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
+ 	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
+ 	exceptions_failbit.cc: Likewise.
+ 	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
+ 	exceptions_failbit.cc: Likewise.
+ 	* testsuite/27_io/basic_istream/extractors_other/char/
+ 	exceptions_null.cc: Likewise.
+ 	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
+ 	exceptions_null.cc: Likewise.
+ 	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
+ 	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
+ 	* testsuite/27_io/basic_ostream/inserters_other/char/
+ 	exceptions_null.cc: Likewise.
+ 	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
+ 	exceptions_null.cc: Likewise.
+ 	* testsuite/27_io/ios_base/storage/2.cc: Likewise.
+ 
+ 2018-07-05  François Dumont  <fdumont@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
+ 
+ 	PR libstdc++/86272
+ 	* include/debug/string
+ 	(__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
+ 	Use __glibcxx_check_insert_range.
+ 
+ 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/67554
+ 	* include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
+ 	(_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
+ 
+ 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* doc/xml/manual/debug_mode.xml: Add array and forward_list to list
+ 	of C++11 containers with Debug Mode support.
+ 	* doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
+ 	* doc/html/*: Regenerate.
+ 
+ 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/85632 use uintmax_t for arithmetic
+ 	* src/filesystem/ops.cc (experimental::filesystem::space): Perform
+ 	arithmetic in result type.
+ 	* testsuite/experimental/filesystem/operations/space.cc: New.
+ 
+ 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/84671
+ 	* include/bits/parse_numbers.h (_Number_help): Add partial
+ 	specialization to handle digit separators. Adjust partial
+ 	specialization for recursion temrination to require _Pow == 1ULL.
+ 	* testsuite/20_util/duration/literals/84671.cc: New
+ 
+ 2018-02-19  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/81797
+ 	* configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
+ 	* configure: Regenerate.
+ 	* include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
+ 	defined.
+ 	* include/Makefile.in: Regenerate.
+ 
+ 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83833
+ 	* include/bits/random.h (chi_squared_distribution::param): Update
+ 	gamma distribution parameter.
+ 	* testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
+ 	test.
+ 
+ 2018-01-19  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83834
+ 	* config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
+ 	pattern with exact match for std::cerr.
+ 
+ 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* python/libstdcxx/v6/printers.py (register_type_printers): Remove
+ 	printer for experimental::any. Fix printers for experimental::optional
+ 	and experimental::basic_string_view.
+ 
+ 	Backport from mainline
+ 	2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83626
+ 	* src/filesystem/ops.cc (remove(const path&, error_code&))): Do not
+ 	return an error for non-existent paths. Remove unnecessary
+ 	symlink_status call.
+ 	(remove_all(const path&)): Fix type of result variable.
+ 	(remove_all(const path&, error_code&))): Use non-throwing increment
+ 	for directory iterator. Do not return an error for non-existent paths.
+ 	* testsuite/experimental/filesystem/operations/remove.cc: New test.
+ 	* testsuite/experimental/filesystem/operations/remove_all.cc: Fix
+ 	expected results for non-existent paths.
+ 
+ 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2017-11-14  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/bits/locale_conv.h (wbuffer_convert::_M_conv_get): Fix typo.
+ 	* testsuite/22_locale/conversions/buffer/3.cc: New test.
+ 
+ 	Backport from mainline
+ 	2017-10-19  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* testsuite/experimental/filesystem/iterators/
+ 	recursive_directory_iterator.cc: Ensure that error_code arguments are
+ 	cleared when required.
+ 	* testsuite/experimental/filesystem/operations/create_directory.cc:
+ 	Remove redundant check.
+ 	* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
+ 	Ensure that error_code argument is cleared when required.
+ 
+ 	Backport from mainline
+ 	2017-12-27  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83600
+ 	* include/bits/regex.h (match_results::end()): Return valid iterator
+ 	when not ready.
+ 	* testsuite/28_regex/match_results/ctors/char/default.cc: Check that
+ 	unready objects are empty and have equal begin and end iterators.
+ 	* testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
+ 
+ 	Backport from mainline
+ 	2017-12-27  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83598
+ 	* include/bits/regex.h (basic_regex): Don't modify flags passed to
+ 	constructors.
+ 	* testsuite/28_regex/basic_regex/ctors/83598.cc: New test.
+ 
+ 	Backport from mainline
+ 	2017-12-14  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/83279
+ 	* src/filesystem/std-ops.cc (do_copy_file): Handle sendfile not
+ 	copying entire file.
+ 
+ 	Backport from mainline
+ 	2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/experimental/fs_ops.h (exists(const path&, error_code&))):
+ 	Only check status_known once.
+ 
+ 	Backport from mainline
+ 	2017-10-25  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/79283
+ 	* src/filesystem/ops.cc (read_symlink): Handle st_size being zero.
+ 
+ 2017-12-14  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/59568
+ 	* include/std/complex (operator>>): Only use putback if a character
+ 	was successfully extracted and only set the value if a number was
+ 	successfully extracted.
+ 	* testsuite/26_numerics/complex/inserters_extractors/char/59568.cc:
+ 	New test.
+ 
+ 2017-11-11  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	Backport from mainline
+ 	2017-08-20  John David Anglin  <danglin@gcc.gnu.org>
+ 
+ 	PR testsuite/81056
+ 	* testsuite/17_intro/names.cc: Undef 'd' and 'r' on __hpux__.
+ 
+ 2017-10-25  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* doc/xml/manual/status_cxx1998.xml: Correct statement about
+ 	what the doc covers.
+ 	* doc/xml/manual/status_cxxtr1.xml: Likewise.
+ 	* doc/xml/manual/status_cxxtr24733.xml: Likewise.
+ 	* doc/html/*: Regenerate.
+ 
+ 2017-10-23  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2017-07-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/81395
+ 	* include/bits/fstream.tcc (basic_filebuf::xsgetn): Don't set buffer
+ 	pointers for write mode after reading.
+ 	* testsuite/27_io/basic_filebuf/sgetn/char/81395.cc: New.
+ 
+ 	Backport from mainline
+ 	2017-10-19  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/experimental/bits/fs_path.h (path::iterator++(int))
+ 	(path::iterator--(int)): Fix for paths with only one component.
+ 	* testsuite/experimental/filesystem/path/itr/traversal.cc: Test
+ 	post-increment and post-decrement.
+ 
+ 2017-09-20  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2017-02-16  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/60936
+ 	* src/c++11/snprintf_lite.cc (__concat_size_t): Calculate length
+ 	written to buffer, not length remaining in buffer.
+ 
+ 	Backport from mainline
+ 	2017-02-08  Gerald Pfeifer  <gerald@pfeifer.com>
+ 
+ 	* src/c++11/snprintf_lite.cc (__err): Update bug reporting URL.
+ 
+ 2017-09-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2017-02-03  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/60936
+ 	* src/c++11/Makefile.am: Add new files.
+ 	* src/c++11/Makefile.in: Regenerate.
+ 	* src/c++11/cow-string-inst.cc [!_GLIBCXX_USE_CXX11_ABI]
+ 	(operator<<, operator>>, getline): Move explicit instantiations to ...
+ 	* src/c++11/cow-string-io-inst.cc: ... new file.
+ 	* src/c++11/cow-wstring-inst.cc [!_GLIBCXX_USE_CXX11_ABI]
+ 	(operator<<, operator>>, getline): Move explicit instantiations to ...
+ 	* src/c++11/cow-wstring-io-inst.cc: ... new file.
+ 	* src/c++11/functexcept.cc (__throw_ios_failure, __throw_system_error)
+ 	(__throw_future_error, __throw_bad_function_call):
+ 	(__throw_regex_error): Move functions for C++11 exceptions to the
+ 	files that define the exception types.
+ 	* src/c++11/functional.cc (__throw_bad_function_call): Move here.
+ 	* src/c++11/future.cc (__throw_future_error): Likewise.
+ 	* src/c++11/ios.cc (__throw_ios_failure): Likewise.
+ 	* src/c++11/regex.cc (__throw_regex_error): Likewise.
+ 	* src/c++11/snprintf_lite.cc (__concat_size_t): Print decimal
+ 	representation directly instead of calling __int_to_char.
+ 	* src/c++11/sso_string.cc (__sso_string): New file for definition
+ 	of __sso_string type.
+ 	* src/c++11/string-io-inst.cc [_GLIBCXX_USE_CXX11_ABI]: New file for
+ 	explicit instantiations of narrow string I/O functions.
+ 	* src/c++11/system_error.cc (__throw_system_error): Move here.
+ 	(__sso_string): Move to new file.
+ 	* src/c++11/wstring-io-inst.cc [_GLIBCXX_USE_CXX11_ABI]: New file for
+ 	explicit instantiations of wide string I/O functions.
+ 	* src/c++98/misc-inst.cc [_GLIBCXX_USE_CXX11_ABI] (operator<<)
+ 	(operator>>, getline): Remove explicit instantiations from here.
+ 
+ 2017-09-13  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/81468
+ 	* include/std/chrono (time_point(const time_point<_Dur2>&)): Add
+ 	missing constraint from LWG DR 1177.
+ 	* testsuite/20_util/duration/cons/dr1177.cc: New.
+ 	* testsuite/20_util/time_point/cons/81468.cc: New.
+ 	* testsuite/20_util/duration/literals/range.cc: Update dg-error line.
+ 
+ 	* doc/doxygen/mainpage.html: Fix broken URLs.
+ 
+ 	PR libstdc++/81835
+ 	* doc/xml/manual/extensions.xml: Replace unstable URL.
+ 	* doc/html/manual/ext_demangling.html: Regenerate.
+ 	* libsupc++/cxxabi.h (__cxa_demangle): Fix broken URL.
+ 
+ 2017-09-05  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* testsuite/20_util/owner_less/noexcept.cc: Remove owner_less<void>
+ 	tests.
+ 
+ 2017-09-04  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2017-08-09  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/79820
+ 	PR libstdc++/81751
+ 	* config/io/basic_file_stdio.cc (sys_open(FILE*, ios_base::openmode)):
+ 	Call fflush on the stream instead of calling sync() while _M_cfile is
+ 	null. Restore original value of errno.
+ 	* testsuite/ext/stdio_filebuf/char/79820.cc: New.
+ 	* testsuite/ext/stdio_filebuf/char/81751.cc: New.
+ 
+ 	Backport from mainline
+ 	2017-07-25  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/53984
+ 	* include/bits/basic_ios.h (basic_ios::_M_setstate): Adjust comment.
+ 	* include/bits/istream.tcc (basic_istream::sentry): Handle exceptions
+ 	during construction.
+ 	* include/std/istream: Adjust comments for formatted input functions
+ 	and unformatted input functions.
+ 	* testsuite/27_io/basic_fstream/53984.cc: New.
+ 	* testsuite/27_io/basic_istream/sentry/char/53984.cc: New.
+ 
+ 	Backport from mainline
+ 	2017-06-08  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/81017
+ 	* include/std/functional (function::function(function&&))
+ 	(function::operator=(function&&)): Add noexcept.
+ 	* testsuite/20_util/function/assign/move.cc: Check for noexcept.
+ 	* testsuite/20_util/function/cons/move.cc: Likewise.
+ 
+ 	Backport from mainline
+ 	2017-06-05  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* include/bits/shared_ptr_base.h (__shared_ptr::owner_before)
+ 	(__weak_ptr::owner_before, _Sp_owner_less::operator()): Add noexcept
+ 	specifiers as per LWG 2873 and LWG 2942.
+ 	* testsuite/20_util/owner_less/noexcept.cc: New.
+ 	* testsuite/20_util/shared_ptr/observers/owner_before.cc: Test
+ 	noexcept guarantees.
+ 	* testsuite/20_util/weak_ptr/observers/owner_before.cc: Likewise.
+ 
+ 	Backport from mainline
+ 	2017-08-31  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR c++/82039
+ 	* include/ext/new_allocator.h (__gnu_cxx::new_allocator::allocate):
+ 	Adjust null pointer constant to avoid warning.
+ 
+ 	Backport from mainline
+ 	2017-08-18  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/81891
+ 	* include/bits/hashtable.h (_Hashtable(_InputIterator, _InputIterator,
+ 	size_type, const _H1&, const _H2&, const _Hash&, const _Equal&,
+ 	const _ExtractKey&, const allocator_type&)): Let destructor do clean
+ 	up if an exception is thrown.
+ 	* testsuite/23_containers/unordered_map/cons/81891.cc: New.
+ 
+ 	Backport from mainline
+ 	2017-07-31  Marek Polacek  <polacek@redhat.com>
+ 
+ 	PR libstdc++/81599
+ 	* include/bits/stl_stack.h: Fix typo.
+ 
+ 	Backport from mainline
+ 	2017-07-10  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/81338
+ 	* include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI] (basic_string):
+ 	Declare basic_stringbuf to be a friend.
+ 	* include/bits/sstream.tcc (basic_stringbuf::overflow)
+ 	[_GLIBCXX_USE_CXX11_ABI]: Use unused capacity before reallocating.
+ 	* include/std/sstream (basic_stringbuf::__xfer_bufptrs): Update string
+ 	length to buffer length.
+ 	* testsuite/27_io/basic_stringstream/assign/81338.cc: New.
+ 
+ 2017-07-12  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	* testsuite/30_threads/promise/members/at_thread_exit2.cc: Require
+ 	atomic builtins.
+ 
+ 2017-07-11  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	Backport from mainline
+ 	2017-04-21  Jonathan Wakely  <jwakely@redhat.com>
+ 
+ 	PR libstdc++/80316
+ 	* include/std/future (_State_baseV2::_Setter::operator()): Remove
+ 	_S_check calls that are done after the pointer to the shared state is
+ 	already dereferenced.
+ 	(_State_baseV2::_Setter<_Res, void>): Define specialization for void
+ 	as partial specialization so it can be defined within the definition
+ 	of _State_baseV2.
+ 	(_State_baseV2::__setter): Call _S_check.
+ 	(_State_baseV2::__setter(promise<void>*)): Add overload for use by
+ 	promise<void>::set_value and promise<void>::set_value_at_thread_exit.
+ 	(promise<T>, promise<T&>, promise<void>): Make _State a friend.
+ 	(_State_baseV2::_Setter<void, void>): Remove explicit specialization.
+ 	(promise<void>::set_value, promise<void>::set_value_at_thread_exit):
+ 	Use new __setter overload.
+ 	* testsuite/30_threads/promise/members/at_thread_exit2.cc: New test.
+ 	* testsuite/30_threads/promise/members/set_exception.cc: Test
+ 	promise<T&> and promise<void> specializations.
+ 	* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
+ 	Test for no_state error condition.
+ 	* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/config/abi/pre/gnu.ver gcc-6.5.0/libstdc++-v3/config/abi/pre/gnu.ver
*** gcc-6.4.0/libstdc++-v3/config/abi/pre/gnu.ver	Thu Mar 24 18:13:40 2016
--- gcc-6.5.0/libstdc++-v3/config/abi/pre/gnu.ver	Fri Jan 19 11:25:33 2018
*************** GLIBCXX_3.4 {
*** 60,66 ****
        std::basic_[t-z]*;
        std::ba[t-z]*;
        std::b[b-z]*;
!       std::c[a-g]*;
  #     std::char_traits;
  #     std::c[i-z]*;
        std::c[i-n]*;
--- 60,66 ----
        std::basic_[t-z]*;
        std::ba[t-z]*;
        std::b[b-z]*;
!       std::cerr;
  #     std::char_traits;
  #     std::c[i-z]*;
        std::c[i-n]*;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/config/io/basic_file_stdio.cc gcc-6.5.0/libstdc++-v3/config/io/basic_file_stdio.cc
*** gcc-6.4.0/libstdc++-v3/config/io/basic_file_stdio.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/config/io/basic_file_stdio.cc	Mon Sep  4 16:52:30 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 195,205 ****
      __basic_file* __ret = NULL;
      if (!this->is_open() && __file)
        {
! 	int __err;
! 	errno = 0;	
  	do
! 	  __err = this->sync();
  	while (__err && errno == EINTR);
  	if (!__err)
  	  {
  	    _M_cfile = __file;
--- 195,207 ----
      __basic_file* __ret = NULL;
      if (!this->is_open() && __file)
        {
! 	int __err, __save_errno = errno;
! 	// POSIX guarantees that fflush sets errno on error, but C doesn't.
! 	errno = 0;
  	do
! 	  __err = fflush(__file);
  	while (__err && errno == EINTR);
+ 	errno = __save_errno;
  	if (!__err)
  	  {
  	    _M_cfile = __file;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/configure gcc-6.5.0/libstdc++-v3/configure
*** gcc-6.4.0/libstdc++-v3/configure	Fri May 26 12:01:06 2017
--- gcc-6.5.0/libstdc++-v3/configure	Mon Feb 19 17:02:38 2018
*************** CPU_DEFINES_SRCDIR
*** 619,624 ****
--- 619,626 ----
  ATOMIC_FLAGS
  ATOMIC_WORD_SRCDIR
  ATOMICITY_SRCDIR
+ INCLUDE_DIR_NOTPARALLEL_FALSE
+ INCLUDE_DIR_NOTPARALLEL_TRUE
  BUILD_PDF_FALSE
  BUILD_PDF_TRUE
  PDFLATEX
*************** else
*** 11596,11602 ****
    lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
    lt_status=$lt_dlunknown
    cat > conftest.$ac_ext <<_LT_EOF
! #line 11599 "configure"
  #include "confdefs.h"
  
  #if HAVE_DLFCN_H
--- 11598,11604 ----
    lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
    lt_status=$lt_dlunknown
    cat > conftest.$ac_ext <<_LT_EOF
! #line 11601 "configure"
  #include "confdefs.h"
  
  #if HAVE_DLFCN_H
*************** else
*** 11702,11708 ****
    lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
    lt_status=$lt_dlunknown
    cat > conftest.$ac_ext <<_LT_EOF
! #line 11705 "configure"
  #include "confdefs.h"
  
  #if HAVE_DLFCN_H
--- 11704,11710 ----
    lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
    lt_status=$lt_dlunknown
    cat > conftest.$ac_ext <<_LT_EOF
! #line 11707 "configure"
  #include "confdefs.h"
  
  #if HAVE_DLFCN_H
*************** $as_echo "$glibcxx_cv_atomic_long_long"
*** 15388,15394 ****
    # Fake what AC_TRY_COMPILE does.
  
      cat > conftest.$ac_ext << EOF
! #line 15391 "configure"
  int main()
  {
    typedef bool atomic_type;
--- 15390,15396 ----
    # Fake what AC_TRY_COMPILE does.
  
      cat > conftest.$ac_ext << EOF
! #line 15393 "configure"
  int main()
  {
    typedef bool atomic_type;
*************** $as_echo "$glibcxx_cv_atomic_bool" >&6;
*** 15423,15429 ****
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15426 "configure"
  int main()
  {
    typedef short atomic_type;
--- 15425,15431 ----
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15428 "configure"
  int main()
  {
    typedef short atomic_type;
*************** $as_echo "$glibcxx_cv_atomic_short" >&6;
*** 15458,15464 ****
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15461 "configure"
  int main()
  {
    // NB: _Atomic_word not necessarily int.
--- 15460,15466 ----
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15463 "configure"
  int main()
  {
    // NB: _Atomic_word not necessarily int.
*************** $as_echo "$glibcxx_cv_atomic_int" >&6; }
*** 15494,15500 ****
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15497 "configure"
  int main()
  {
    typedef long long atomic_type;
--- 15496,15502 ----
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15499 "configure"
  int main()
  {
    typedef long long atomic_type;
*************** $as_echo "$as_me: WARNING: Performance o
*** 15575,15581 ****
    # unnecessary for this test.
  
      cat > conftest.$ac_ext << EOF
! #line 15578 "configure"
  int main()
  {
    _Decimal32 d1;
--- 15577,15583 ----
    # unnecessary for this test.
  
      cat > conftest.$ac_ext << EOF
! #line 15580 "configure"
  int main()
  {
    _Decimal32 d1;
*************** ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
*** 15617,15623 ****
    # unnecessary for this test.
  
      cat > conftest.$ac_ext << EOF
! #line 15620 "configure"
  template<typename T1, typename T2>
    struct same
    { typedef T2 type; };
--- 15619,15625 ----
    # unnecessary for this test.
  
      cat > conftest.$ac_ext << EOF
! #line 15622 "configure"
  template<typename T1, typename T2>
    struct same
    { typedef T2 type; };
*************** $as_echo "$enable_int128" >&6; }
*** 15651,15657 ****
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15654 "configure"
  template<typename T1, typename T2>
    struct same
    { typedef T2 type; };
--- 15653,15659 ----
      rm -f conftest*
  
      cat > conftest.$ac_ext << EOF
! #line 15656 "configure"
  template<typename T1, typename T2>
    struct same
    { typedef T2 type; };
*************** else
*** 81017,81022 ****
--- 81019,81036 ----
  fi
  
  
+ case "$build" in
+  *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;;
+  * ) glibcxx_include_dir_notparallel=no ;;
+ esac
+  if test $glibcxx_include_dir_notparallel = "yes"; then
+   INCLUDE_DIR_NOTPARALLEL_TRUE=
+   INCLUDE_DIR_NOTPARALLEL_FALSE='#'
+ else
+   INCLUDE_DIR_NOTPARALLEL_TRUE='#'
+   INCLUDE_DIR_NOTPARALLEL_FALSE=
+ fi
+ 
  
  # Propagate the target-specific source directories through the build chain.
  ATOMICITY_SRCDIR=config/${atomicity_dir}
*************** if test -z "${BUILD_PDF_TRUE}" && test -
*** 81696,81701 ****
--- 81710,81719 ----
    as_fn_error "conditional \"BUILD_PDF\" was never defined.
  Usually this means the macro was only invoked conditionally." "$LINENO" 5
  fi
+ if test -z "${INCLUDE_DIR_NOTPARALLEL_TRUE}" && test -z "${INCLUDE_DIR_NOTPARALLEL_FALSE}"; then
+   as_fn_error "conditional \"INCLUDE_DIR_NOTPARALLEL\" was never defined.
+ Usually this means the macro was only invoked conditionally." "$LINENO" 5
+ fi
  
  : ${CONFIG_STATUS=./config.status}
  ac_write_fail=0
diff -Nrcpad gcc-6.4.0/libstdc++-v3/configure.ac gcc-6.5.0/libstdc++-v3/configure.ac
*** gcc-6.4.0/libstdc++-v3/configure.ac	Fri Jan 15 22:42:41 2016
--- gcc-6.5.0/libstdc++-v3/configure.ac	Mon Feb 19 17:02:38 2018
*************** AM_CONDITIONAL(BUILD_PDF,
*** 456,461 ****
--- 456,467 ----
  	       test $ac_cv_prog_DBLATEX = "yes" &&
  	       test $ac_cv_prog_PDFLATEX = "yes")
  
+ case "$build" in
+  *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;;
+  * ) glibcxx_include_dir_notparallel=no ;;
+ esac
+ AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL,
+                test $glibcxx_include_dir_notparallel = "yes")
  
  # Propagate the target-specific source directories through the build chain.
  ATOMICITY_SRCDIR=config/${atomicity_dir}
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/doxygen/mainpage.html gcc-6.5.0/libstdc++-v3/doc/doxygen/mainpage.html
*** gcc-6.4.0/libstdc++-v3/doc/doxygen/mainpage.html	Wed Mar 26 06:27:35 2008
--- gcc-6.5.0/libstdc++-v3/doc/doxygen/mainpage.html	Wed Sep 13 10:22:45 2017
***************
*** 28,34 ****
  
  <p>There are two types of documentation for libstdc++.  One is the
     distribution documentation, which can be read online
!    <a href="http://gcc.gnu.org/onlinedocs/libstdc++/index.html">here</a>
     or offline from the file doc/html/index.html in the library source
     directory.
  </p>
--- 28,34 ----
  
  <p>There are two types of documentation for libstdc++.  One is the
     distribution documentation, which can be read online
!    <a href="https://gcc.gnu.org/onlinedocs/libstdc++/index.html">here</a>
     or offline from the file doc/html/index.html in the library source
     directory.
  </p>
***************
*** 78,88 ****
     pages.  See the section "Documentation Style"
     in <code>doc/xml/manual/appendix_contributing.xml</code> in the
     source tree for how to create (and write) the doxygen markup.
!   This style guide can also be viewed on the <a href="http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01apas04.html">web</a>.
  
  <h2>License, Copyright, and Other Lawyerly Verbosity</h2>
  <p>The libstdc++ documentation is released under
!    <a href="http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01s02.html">
     these terms</a>.
  </p>
  <p>Part of the generated documentation involved comments and notes from
--- 78,88 ----
     pages.  See the section "Documentation Style"
     in <code>doc/xml/manual/appendix_contributing.xml</code> in the
     source tree for how to create (and write) the doxygen markup.
!   This style guide can also be viewed on the <a href="https://gcc.gnu.org/onlinedocs/libstdc++/manual/documentation_hacking.html">web</a>.
  
  <h2>License, Copyright, and Other Lawyerly Verbosity</h2>
  <p>The libstdc++ documentation is released under
!    <a href="https://gcc.gnu.org/onlinedocs/libstdc++/manual/appendix_gpl.html">
     these terms</a>.
  </p>
  <p>Part of the generated documentation involved comments and notes from
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/api.html gcc-6.5.0/libstdc++-v3/doc/html/api.html
*** gcc-6.4.0/libstdc++-v3/doc/html/api.html	Tue Aug 23 12:08:14 2016
--- gcc-6.5.0/libstdc++-v3/doc/html/api.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>The GNU C++ Library API Reference</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="bk02.html" title="" /><link rel="prev" href="bk02.html" title="" /><link rel="next" href="bk03.html" title="" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">The GNU C++ Library API Reference</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk02.html">Prev</a> </td><th width="60%" align="center"></th><td width="20%" align="right"> <a accesskey="n" href="bk03.html">Next</a></td></tr></table><hr /></div><div class="article"><div class="titlepage"><div><div><h1 class="title"><a id="api"></a>The GNU C++ Library API Reference</h1></div><div><p class="copyright">Copyright © 
        2008
      , 
        2010
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>The GNU C++ Library API Reference</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="bk02.html" title="" /><link rel="prev" href="bk02.html" title="" /><link rel="next" href="bk03.html" title="" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">The GNU C++ Library API Reference</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk02.html">Prev</a> </td><th width="60%" align="center"></th><td width="20%" align="right"> <a accesskey="n" href="bk03.html">Next</a></td></tr></table><hr /></div><div class="article"><div class="titlepage"><div><div><h1 class="title"><a id="api"></a>The GNU C++ Library API Reference</h1></div><div><p class="copyright">Copyright © 
        2008
      , 
        2010
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/bk02.html gcc-6.5.0/libstdc++-v3/doc/html/bk02.html
*** gcc-6.4.0/libstdc++-v3/doc/html/bk02.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/bk02.html	Wed Oct 25 14:16:26 2017
***************
*** 1,2 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title></title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="index.html" title="The GNU C++ Library" /><link rel="prev" href="manual/backwards.html" title="Backwards Compatibility" /><link rel="next" href="api.html" title="The GNU C++ Library API Reference" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="manual/backwards.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="api.html">Next</a></td></tr></table><hr /></div><div class="book"><div class="titlepage"><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="article"><a href="api.html">The GNU C++ Library API Reference</a></span></dt></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="manual/backwards.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="api.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Backwards Compatibility </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> The GNU C++ Library API Reference</td></tr></table></div></body></html>
\ No newline at end of file
--- 1,2 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title></title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="index.html" title="The GNU C++ Library" /><link rel="prev" href="manual/backwards.html" title="Backwards Compatibility" /><link rel="next" href="api.html" title="The GNU C++ Library API Reference" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="manual/backwards.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="api.html">Next</a></td></tr></table><hr /></div><div class="book"><div class="titlepage"><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="article"><a href="api.html">The GNU C++ Library API Reference</a></span></dt></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="manual/backwards.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="api.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Backwards Compatibility </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> The GNU C++ Library API Reference</td></tr></table></div></body></html>
\ No newline at end of file
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/bk03.html gcc-6.5.0/libstdc++-v3/doc/html/bk03.html
*** gcc-6.4.0/libstdc++-v3/doc/html/bk03.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/bk03.html	Wed Oct 25 14:16:26 2017
***************
*** 1,2 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title></title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="index.html" title="The GNU C++ Library" /><link rel="prev" href="api.html" title="The GNU C++ Library API Reference" /><link rel="next" href="faq.html" title="Frequently Asked Questions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="api.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="faq.html">Next</a></td></tr></table><hr /></div><div class="book"><div class="titlepage"><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="article"><a href="faq.html">Frequently Asked Questions</a></span></dt></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="api.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="faq.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">The GNU C++ Library API Reference </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Frequently Asked Questions</td></tr></table></div></body></html>
\ No newline at end of file
--- 1,2 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title></title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="index.html" title="The GNU C++ Library" /><link rel="prev" href="api.html" title="The GNU C++ Library API Reference" /><link rel="next" href="faq.html" title="Frequently Asked Questions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="api.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="faq.html">Next</a></td></tr></table><hr /></div><div class="book"><div class="titlepage"><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="article"><a href="faq.html">Frequently Asked Questions</a></span></dt></dl></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="api.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="faq.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">The GNU C++ Library API Reference </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Frequently Asked Questions</td></tr></table></div></body></html>
\ No newline at end of file
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/faq.html gcc-6.5.0/libstdc++-v3/doc/html/faq.html
*** gcc-6.4.0/libstdc++-v3/doc/html/faq.html	Fri Jun 16 12:41:51 2017
--- gcc-6.5.0/libstdc++-v3/doc/html/faq.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Frequently Asked Questions</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="bk03.html" title="" /><link rel="prev" href="bk03.html" title="" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Frequently Asked Questions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk03.html">Prev</a> </td><th width="60%" align="center"></th><td width="20%" align="right"> </td></tr></table><hr /></div><div class="article"><div class="titlepage"><div><div><h1 class="title"><a id="faq"></a>Frequently Asked Questions</h1></div><div><p class="copyright">Copyright © 
        2008-2014
       
        <a class="link" href="http://www.fsf.org" target="_top">FSF</a>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Frequently Asked Questions</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="up" href="bk03.html" title="" /><link rel="prev" href="bk03.html" title="" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Frequently Asked Questions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk03.html">Prev</a> </td><th width="60%" align="center"></th><td width="20%" align="right"> </td></tr></table><hr /></div><div class="article"><div class="titlepage"><div><div><h1 class="title"><a id="faq"></a>Frequently Asked Questions</h1></div><div><p class="copyright">Copyright © 
        2008-2014
       
        <a class="link" href="http://www.fsf.org" target="_top">FSF</a>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/index.html gcc-6.5.0/libstdc++-v3/doc/html/index.html
*** gcc-6.4.0/libstdc++-v3/doc/html/index.html	Thu Feb  4 21:46:19 2016
--- gcc-6.5.0/libstdc++-v3/doc/html/index.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>The GNU C++ Library</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="description" content="Short Contents Copyright (C) 2008-2016 FSF Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. This is the top level of the libstdc++ documentation set. The documentation is divided into the following three sections. Manual Frequently Asked Questions API and Source Documentation" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="next" href="manual/index.html" title="The GNU C++ Library Manual" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">The GNU C++ Library</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="manual/index.html">Next</a></td></tr></table><hr /></div><div class="set" lang="en" xml:lang="en"><div class="titlepage"><div><div><h1 class="title"><a id="set-index"></a>The GNU C++ Library</h1></div><div><div class="abstract"><a id="contents"></a><p class="title"><strong>Short Contents</strong></p><p>
        Copyright (C) 2008-2016
        <a class="link" href="http://www.fsf.org/" target="_top">FSF
        </a>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>The GNU C++ Library</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="description" content="Short Contents Copyright (C) 2008-2016 FSF Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. This is the top level of the libstdc++ documentation set. The documentation is divided into the following three sections. Manual Frequently Asked Questions API and Source Documentation" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="index.html" title="The GNU C++ Library" /><link rel="next" href="manual/index.html" title="The GNU C++ Library Manual" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">The GNU C++ Library</th></tr><tr><td width="20%" align="left"> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="manual/index.html">Next</a></td></tr></table><hr /></div><div class="set" lang="en" xml:lang="en"><div class="titlepage"><div><div><h1 class="title"><a id="set-index"></a>The GNU C++ Library</h1></div><div><div class="abstract"><a id="contents"></a><p class="title"><strong>Short Contents</strong></p><p>
        Copyright (C) 2008-2016
        <a class="link" href="http://www.fsf.org/" target="_top">FSF
        </a>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/abi.html gcc-6.5.0/libstdc++-v3/doc/html/manual/abi.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/abi.html	Thu May 18 14:35:12 2017
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/algorithms.html gcc-6.5.0/libstdc++-v3/doc/html/manual/algorithms.html
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    Algorithms
    
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/api.html gcc-6.5.0/libstdc++-v3/doc/html/manual/api.html
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  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>API Evolution and Deprecation History</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, api, evolution, deprecation, history" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /><link rel="prev" href="abi.html" title="ABI Policy and Guidelines" /><link rel="next" href="backwards.html" title="Backwards Compatibility" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">API Evolution and Deprecation History</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="abi.html">Prev</a> </td><th width="60%" align="center">Appendix B. 
    Porting and Maintenance
    
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*************** _Alloc_traits</code> have been removed.
*** 77,87 ****
     <span class="type">__alloc</span> to select an underlying allocator that
     satisfied memory allocation requests. The selection of this
     underlying allocator was not user-configurable.
!    </p><div class="table"><a id="table.extension_allocators"></a><p class="title"><strong>Table B.6. Extension Allocators</strong></p><div class="table-contents"><table summary="Extension Allocators" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Allocator (3.4)</th><th align="left">Header (3.4)</th><th align="left">Allocator (3.[0-3])</th><th align="left">Header (3.[0-3])</th></tr></thead><tbody><tr><td align="left"><code class="classname">__gnu_cxx::new_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/new_allocator.h</code></td><td align="left"><code class="classname">std::__new_alloc</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::malloc_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/malloc_allocator.h</code></td><td align="left"><code class="classname">std::__malloc_alloc_template&lt;int&gt;</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::debug_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/debug_allocator.h</code></td><td align="left"><code class="classname">std::debug_alloc&lt;T&gt;</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::__pool_alloc&lt;T&gt;</code></td><td align="left"><code class="filename">ext/pool_allocator.h</code></td><td align="left"><code class="classname">std::__default_alloc_template&lt;bool,int&gt;</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::__mt_alloc&lt;T&gt;</code></td><td align="left"><code class="filename">ext/mt_allocator.h</code></td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left"><code class="classname">__gnu_cxx::bitmap_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/bitmap_allocator.h</code></td><td align="left"> </td><td align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p> Releases after gcc-3.4 have continued to add to the collection
     of available allocators. All of these new allocators are
     standard-style. The following table includes details, along with
     the first released version of GCC that included the extension allocator.
!    </p><div class="table"><a id="table.extension_allocators2"></a><p class="title"><strong>Table B.7. Extension Allocators Continued</strong></p><div class="table-contents"><table summary="Extension Allocators Continued" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left">Allocator</th><th align="left">Include</th><th align="left">Version</th></tr></thead><tbody><tr><td align="left"><code class="classname">__gnu_cxx::array_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/array_allocator.h</code></td><td align="left">4.0.0</td></tr><tr><td align="left"><code class="classname">__gnu_cxx::throw_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/throw_allocator.h</code></td><td align="left">4.2.0</td></tr></tbody></table></div></div><br class="table-break" /><p>
  Debug mode first appears.
  </p><p>
  Precompiled header support <acronym class="acronym">PCH</acronym> support.
--- 77,87 ----
     <span class="type">__alloc</span> to select an underlying allocator that
     satisfied memory allocation requests. The selection of this
     underlying allocator was not user-configurable.
!    </p><div class="table"><a id="table.extension_allocators"></a><p class="title"><strong>Table B.6. Extension Allocators</strong></p><div class="table-contents"><table class="table" summary="Extension Allocators" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Allocator (3.4)</th><th align="left">Header (3.4)</th><th align="left">Allocator (3.[0-3])</th><th align="left">Header (3.[0-3])</th></tr></thead><tbody><tr><td align="left"><code class="classname">__gnu_cxx::new_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/new_allocator.h</code></td><td align="left"><code class="classname">std::__new_alloc</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::malloc_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/malloc_allocator.h</code></td><td align="left"><code class="classname">std::__malloc_alloc_template&lt;int&gt;</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::debug_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/debug_allocator.h</code></td><td align="left"><code class="classname">std::debug_alloc&lt;T&gt;</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::__pool_alloc&lt;T&gt;</code></td><td align="left"><code class="filename">ext/pool_allocator.h</code></td><td align="left"><code class="classname">std::__default_alloc_template&lt;bool,int&gt;</code></td><td align="left"><code class="filename">memory</code></td></tr><tr><td align="left"><code class="classname">__gnu_cxx::__mt_alloc&lt;T&gt;</code></td><td align="left"><code class="filename">ext/mt_allocator.h</code></td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left"><code class="classname">__gnu_cxx::bitmap_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/bitmap_allocator.h</code></td><td align="left"> </td><td align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p> Releases after gcc-3.4 have continued to add to the collection
     of available allocators. All of these new allocators are
     standard-style. The following table includes details, along with
     the first released version of GCC that included the extension allocator.
!    </p><div class="table"><a id="table.extension_allocators2"></a><p class="title"><strong>Table B.7. Extension Allocators Continued</strong></p><div class="table-contents"><table class="table" summary="Extension Allocators Continued" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left">Allocator</th><th align="left">Include</th><th align="left">Version</th></tr></thead><tbody><tr><td align="left"><code class="classname">__gnu_cxx::array_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/array_allocator.h</code></td><td align="left">4.0.0</td></tr><tr><td align="left"><code class="classname">__gnu_cxx::throw_allocator&lt;T&gt;</code></td><td align="left"><code class="filename">ext/throw_allocator.h</code></td><td align="left">4.2.0</td></tr></tbody></table></div></div><br class="table-break" /><p>
  Debug mode first appears.
  </p><p>
  Precompiled header support <acronym class="acronym">PCH</acronym> support.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/appendix.html gcc-6.5.0/libstdc++-v3/doc/html/manual/appendix.html
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    Appendices
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    Appendices
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    Contributing
    
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    Free Software Needs Free Documentation
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="backwards.html">Prev</a> </td><th width="60%" align="center">Part IV. 
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      Copyright © 2000, 2001, 2002, 2007, 2008
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    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="bitmap_allocator_impl.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.allocator.bitmap"></a>Chapter 21. The bitmap_allocator</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="bitmap_allocator.html#allocator.bitmap.design">Design</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html">Implementation</a></span></dt><dd><dl><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.free_list_store">Free List Store</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.super_block">Super Block</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.super_block_data">Super Block Data Layout</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.max_wasted">Maximum Wasted Percentage</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.allocate"><code class="function">allocate</code></a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.deallocate"><code class="function">deallocate</code></a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.questions">Questions</a></span></dt><dd><dl><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.question.1">1</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.question.2">2</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.question.3">3</a></span></dt></dl></dd><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.locality">Locality</a></span></dt><dt><span class="section"><a href="bitmap_allocator_impl.html#bitmap.impl.grow_policy">Overhead and Grow Policy</a></span></dt></dl></dd></dl></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/bitmap_allocator_impl.html gcc-6.5.0/libstdc++-v3/doc/html/manual/bitmap_allocator_impl.html
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      The Free List Store (referred to as FLS for the remaining part of this
      document) is the Global memory pool that is shared by all instances of
      the bitmapped allocator instantiated for any type. This maintains a
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      The Free List Store (referred to as FLS for the remaining part of this
      document) is the Global memory pool that is shared by all instances of
      the bitmapped allocator instantiated for any type. This maintains a
*************** else return false.</p></li></ol></div><p
*** 75,81 ****
    </p><p>
      Consider a block of size 64 ints. In memory, it would look like this:
      (assume a 32-bit system where, size_t is a 32-bit entity).
!   </p><div class="table"><a id="table.bitmap_alloc"></a><p class="title"><strong>Table 21.1. Bitmap Allocator Memory Map</strong></p><div class="table-contents"><table summary="Bitmap Allocator Memory Map" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left">268</td><td align="left">0</td><td align="left">4294967295</td><td align="left">4294967295</td><td align="left">Data -&gt; Space for 64 ints</td></tr></tbody></table></div></div><br class="table-break" /><p>
      The first Column(268) represents the size of the Block in bytes as
      seen by the Bitmap Allocator. Internally, a global free list is
      used to keep track of the free blocks used and given back by the
--- 75,81 ----
    </p><p>
      Consider a block of size 64 ints. In memory, it would look like this:
      (assume a 32-bit system where, size_t is a 32-bit entity).
!   </p><div class="table"><a id="table.bitmap_alloc"></a><p class="title"><strong>Table 21.1. Bitmap Allocator Memory Map</strong></p><div class="table-contents"><table class="table" summary="Bitmap Allocator Memory Map" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left">268</td><td align="left">0</td><td align="left">4294967295</td><td align="left">4294967295</td><td align="left">Data -&gt; Space for 64 ints</td></tr></tbody></table></div></div><br class="table-break" /><p>
      The first Column(268) represents the size of the Block in bytes as
      seen by the Bitmap Allocator. Internally, a global free list is
      used to keep track of the free blocks used and given back by the
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        Information on known bugs, details on efforts to fix them, and
        fixed bugs are all available as part of the <a class="link" href="http://gcc.gnu.org/bugs/" target="_top">GCC bug tracking system</a>,
        with the category set to <code class="literal">libstdc++</code>.
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        Information on known bugs, details on efforts to fix them, and
        fixed bugs are all available as part of the <a class="link" href="http://gcc.gnu.org/bugs/" target="_top">GCC bug tracking system</a>,
        with the category set to <code class="literal">libstdc++</code>.
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/configure.html gcc-6.5.0/libstdc++-v3/doc/html/manual/configure.html
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    When configuring libstdc++, you'll have to configure the entire
    <span class="emphasis"><em>gccsrcdir</em></span> directory. Consider using the
    toplevel gcc configuration option
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    When configuring libstdc++, you'll have to configure the entire
    <span class="emphasis"><em>gccsrcdir</em></span> directory. Consider using the
    toplevel gcc configuration option
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 9.  Containers</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="facets.html" title="Facets" /><link rel="next" href="associative.html" title="Associative" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 9. 
    Containers
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="facets.html">Prev</a> </td><th width="60%" align="center">Part II. 
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/containers_and_c.html gcc-6.5.0/libstdc++-v3/doc/html/manual/containers_and_c.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/containers_and_c.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/containers_and_c.html	Wed Oct 25 14:16:26 2017
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Interacting with C</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="containers.html" title="Chapter 9.  Containers" /><link rel="prev" href="unordered_associative.html" title="Unordered Associative" /><link rel="next" href="iterators.html" title="Chapter 10.  Iterators" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Interacting with C</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="unordered_associative.html">Prev</a> </td><th width="60%" align="center">Chapter 9. 
    Containers
    
  </th><td width="20%" align="right"> <a accesskey="n" href="iterators.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.containers.c"></a>Interacting with C</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="containers.c.vs_array"></a>Containers vs. Arrays</h3></div></div></div><p>
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Interacting with C</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="containers.html" title="Chapter 9.  Containers" /><link rel="prev" href="unordered_associative.html" title="Unordered Associative" /><link rel="next" href="iterators.html" title="Chapter 10.  Iterators" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Interacting with C</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="unordered_associative.html">Prev</a> </td><th width="60%" align="center">Chapter 9. 
    Containers
    
  </th><td width="20%" align="right"> <a accesskey="n" href="iterators.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.containers.c"></a>Interacting with C</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="containers.c.vs_array"></a>Containers vs. Arrays</h3></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/debug.html gcc-6.5.0/libstdc++-v3/doc/html/manual/debug.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/debug.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/debug.html	Wed Oct 25 14:16:26 2017
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Debugging Support</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_exceptions.html" title="Exceptions" /><link rel="next" href="std_contents.html" title="Part II.  Standard Contents" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Debugging Support</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_exceptions.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="std_contents.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.debug"></a>Debugging Support</h2></div></div></div><p>
    There are numerous things that can be done to improve the ease with
    which C++ binaries are debugged when using the GNU tool chain. Here
    are some of them.
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Debugging Support</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_exceptions.html" title="Exceptions" /><link rel="next" href="std_contents.html" title="Part II.  Standard Contents" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Debugging Support</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_exceptions.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="std_contents.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.debug"></a>Debugging Support</h2></div></div></div><p>
    There are numerous things that can be done to improve the ease with
    which C++ binaries are debugged when using the GNU tool chain. Here
    are some of them.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode.html gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode.html	Wed Oct 25 14:16:26 2017
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 17. Debug Mode</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_compile_checks.html" title="Chapter 16. Compile Time Checks" /><link rel="next" href="debug_mode_semantics.html" title="Semantics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 17. Debug Mode</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_compile_checks.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="debug_mode_semantics.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.debug_mode"></a>Chapter 17. Debug Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="debug_mode.html#manual.ext.debug_mode.intro">Intro</a></span></dt><dt><span class="section"><a href="debug_mode_semantics.html">Semantics</a></span></dt><dt><span class="section"><a href="debug_mode_using.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_using.html#debug_mode.using.mode">Using the Debug Mode</a></span></dt><dt><span class="section"><a href="debug_mode_using.html#debug_mode.using.specific">Using a Specific Debug Container</a></span></dt></dl></dd><dt><span class="section"><a href="debug_mode_design.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.goals">Goals</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods">Methods</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.wrappers">The Wrapper Model</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.safe_iter">Safe Iterators</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.safe_seq">Safe Sequences (Containers)</a></span></dt></dl></dd><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.precond">Precondition Checking</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.coexistence">Release- and debug-mode coexistence</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#methods.coexistence.compile">Compile-time coexistence of release- and debug-mode components</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#methods.coexistence.link">Link- and run-time coexistence of release- and
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 17. Debug Mode</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_compile_checks.html" title="Chapter 16. Compile Time Checks" /><link rel="next" href="debug_mode_semantics.html" title="Semantics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 17. Debug Mode</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_compile_checks.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="debug_mode_semantics.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.debug_mode"></a>Chapter 17. Debug Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="debug_mode.html#manual.ext.debug_mode.intro">Intro</a></span></dt><dt><span class="section"><a href="debug_mode_semantics.html">Semantics</a></span></dt><dt><span class="section"><a href="debug_mode_using.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_using.html#debug_mode.using.mode">Using the Debug Mode</a></span></dt><dt><span class="section"><a href="debug_mode_using.html#debug_mode.using.specific">Using a Specific Debug Container</a></span></dt></dl></dd><dt><span class="section"><a href="debug_mode_design.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.goals">Goals</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods">Methods</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.wrappers">The Wrapper Model</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.safe_iter">Safe Iterators</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.safe_seq">Safe Sequences (Containers)</a></span></dt></dl></dd><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.precond">Precondition Checking</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#debug_mode.design.methods.coexistence">Release- and debug-mode coexistence</a></span></dt><dd><dl><dt><span class="section"><a href="debug_mode_design.html#methods.coexistence.compile">Compile-time coexistence of release- and debug-mode components</a></span></dt><dt><span class="section"><a href="debug_mode_design.html#methods.coexistence.link">Link- and run-time coexistence of release- and
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode_design.html gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode_design.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode_design.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode_design.html	Wed Oct 25 14:16:26 2017
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="prev" href="debug_mode_using.html" title="Using" /><link rel="next" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode_using.html">Prev</a> </td><th width="60%" align="center">Chapter 17. Debug Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.debug_mode.design"></a>Design</h2></div></div></div><p>
    </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="debug_mode.design.goals"></a>Goals</h3></div></div></div><p>
      </p><p> The libstdc++ debug mode replaces unsafe (but efficient) standard
    containers and iterators with semantically equivalent safe standard
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="prev" href="debug_mode_using.html" title="Using" /><link rel="next" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode_using.html">Prev</a> </td><th width="60%" align="center">Chapter 17. Debug Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.debug_mode.design"></a>Design</h2></div></div></div><p>
    </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="debug_mode.design.goals"></a>Goals</h3></div></div></div><p>
      </p><p> The libstdc++ debug mode replaces unsafe (but efficient) standard
    containers and iterators with semantically equivalent safe standard
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode_semantics.html gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode_semantics.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode_semantics.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode_semantics.html	Wed Oct 25 14:16:26 2017
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Semantics</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="prev" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="next" href="debug_mode_using.html" title="Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Semantics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode.html">Prev</a> </td><th width="60%" align="center">Chapter 17. Debug Mode</th><td width="20%" align="right"> <a accesskey="n" href="debug_mode_using.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.debug_mode.semantics"></a>Semantics</h2></div></div></div><p>
    </p><p>A program that uses the C++ standard library correctly
    will maintain the same semantics under debug mode as it had with
    the normal (release) library. All functional and exception-handling
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  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Semantics</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="prev" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="next" href="debug_mode_using.html" title="Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Semantics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode.html">Prev</a> </td><th width="60%" align="center">Chapter 17. Debug Mode</th><td width="20%" align="right"> <a accesskey="n" href="debug_mode_using.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.debug_mode.semantics"></a>Semantics</h2></div></div></div><p>
    </p><p>A program that uses the C++ standard library correctly
    will maintain the same semantics under debug mode as it had with
    the normal (release) library. All functional and exception-handling
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode_using.html gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode_using.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/debug_mode_using.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/debug_mode_using.html	Thu May 10 19:27:14 2018
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    </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="debug_mode.using.mode"></a>Using the Debug Mode</h3></div></div></div><p>To use the libstdc++ debug mode, compile your application with the
    compiler flag <code class="code">-D_GLIBCXX_DEBUG</code>. Note that this flag
    changes the sizes and behavior of standard class templates such
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Using</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, debug" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="debug_mode.html" title="Chapter 17. Debug Mode" /><link rel="prev" href="debug_mode_semantics.html" title="Semantics" /><link rel="next" href="debug_mode_design.html" title="Design" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Using</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode_semantics.html">Prev</a> </td><th width="60%" align="center">Chapter 17. Debug Mode</th><td width="20%" align="right"> <a accesskey="n" href="debug_mode_design.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.debug_mode.using"></a>Using</h2></div></div></div><p>
    </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="debug_mode.using.mode"></a>Using the Debug Mode</h3></div></div></div><p>To use the libstdc++ debug mode, compile your application with the
    compiler flag <code class="code">-D_GLIBCXX_DEBUG</code>. Note that this flag
    changes the sizes and behavior of standard class templates such
***************
*** 18,23 ****
    mode or with debug mode. The
    following table provides the names and headers of the debugging
    containers:
! </p><div class="table"><a id="table.debug_mode_containers"></a><p class="title"><strong>Table 17.1. Debugging Containers</strong></p><div class="table-contents"><table summary="Debugging Containers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Container</th><th align="left">Header</th><th align="left">Debug container</th><th align="left">Debug header</th></tr></thead><tbody><tr><td align="left"><code class="classname">std::bitset</code></td><td align="left"><code class="filename">bitset</code></td><td align="left"><code class="classname">__gnu_debug::bitset</code></td><td align="left"><code class="filename">&lt;debug/bitset&gt;</code></td></tr><tr><td align="left"><code class="classname">std::deque</code></td><td align="left"><code class="filename">deque</code></td><td align="left"><code class="classname">__gnu_debug::deque</code></td><td align="left"><code class="filename">&lt;debug/deque&gt;</code></td></tr><tr><td align="left"><code class="classname">std::list</code></td><td align="left"><code class="filename">list</code></td><td align="left"><code class="classname">__gnu_debug::list</code></td><td align="left"><code class="filename">&lt;debug/list&gt;</code></td></tr><tr><td align="left"><code class="classname">std::map</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="classname">__gnu_debug::map</code></td><td align="left"><code class="filename">&lt;debug/map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::multimap</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="classname">__gnu_debug::multimap</code></td><td align="left"><code class="filename">&lt;debug/map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::multiset</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="classname">__gnu_debug::multiset</code></td><td align="left"><code class="filename">&lt;debug/set&gt;</code></td></tr><tr><td align="left"><code class="classname">std::set</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="classname">__gnu_debug::set</code></td><td align="left"><code class="filename">&lt;debug/set&gt;</code></td></tr><tr><td align="left"><code class="classname">std::string</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="classname">__gnu_debug::string</code></td><td align="left"><code class="filename">&lt;debug/string&gt;</code></td></tr><tr><td align="left"><code class="classname">std::wstring</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="classname">__gnu_debug::wstring</code></td><td align="left"><code class="filename">&lt;debug/string&gt;</code></td></tr><tr><td align="left"><code class="classname">std::basic_string</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="classname">__gnu_debug::basic_string</code></td><td align="left"><code class="filename">&lt;debug/string&gt;</code></td></tr><tr><td align="left"><code class="classname">std::vector</code></td><td align="left"><code class="filename">vector</code></td><td align="left"><code class="classname">__gnu_debug::vector</code></td><td align="left"><code class="filename">&lt;debug/vector&gt;</code></td></tr></tbody></table></div></div><br class="table-break" /><p>In addition, when compiling in C++11 mode, these additional
  containers have additional debug capability.
! </p><div class="table"><a id="table.debug_mode_containers_cxx11"></a><p class="title"><strong>Table 17.2. Debugging Containers C++11</strong></p><div class="table-contents"><table summary="Debugging Containers C++11" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Container</th><th align="left">Header</th><th align="left">Debug container</th><th align="left">Debug header</th></tr></thead><tbody><tr><td align="left"><code class="classname">std::unordered_map</code></td><td align="left"><code class="filename">unordered_map</code></td><td align="left"><code class="classname">__gnu_debug::unordered_map</code></td><td align="left"><code class="filename">&lt;debug/unordered_map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_multimap</code></td><td align="left"><code class="filename">unordered_map</code></td><td align="left"><code class="classname">__gnu_debug::unordered_multimap</code></td><td align="left"><code class="filename">&lt;debug/unordered_map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_set</code></td><td align="left"><code class="filename">unordered_set</code></td><td align="left"><code class="classname">__gnu_debug::unordered_set</code></td><td align="left"><code class="filename">&lt;debug/unordered_set&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_multiset</code></td><td align="left"><code class="filename">unordered_set</code></td><td align="left"><code class="classname">__gnu_debug::unordered_multiset</code></td><td align="left"><code class="filename">&lt;debug/unordered_set&gt;</code></td></tr></tbody></table></div></div><br class="table-break" /></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="debug_mode_semantics.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="debug_mode.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="debug_mode_design.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Semantics </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Design</td></tr></table></div></body></html>
\ No newline at end of file
--- 18,23 ----
    mode or with debug mode. The
    following table provides the names and headers of the debugging
    containers:
! </p><div class="table"><a id="table.debug_mode_containers"></a><p class="title"><strong>Table 17.1. Debugging Containers</strong></p><div class="table-contents"><table class="table" summary="Debugging Containers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Container</th><th align="left">Header</th><th align="left">Debug container</th><th align="left">Debug header</th></tr></thead><tbody><tr><td align="left"><code class="classname">std::bitset</code></td><td align="left"><code class="filename">bitset</code></td><td align="left"><code class="classname">__gnu_debug::bitset</code></td><td align="left"><code class="filename">&lt;debug/bitset&gt;</code></td></tr><tr><td align="left"><code class="classname">std::deque</code></td><td align="left"><code class="filename">deque</code></td><td align="left"><code class="classname">__gnu_debug::deque</code></td><td align="left"><code class="filename">&lt;debug/deque&gt;</code></td></tr><tr><td align="left"><code class="classname">std::list</code></td><td align="left"><code class="filename">list</code></td><td align="left"><code class="classname">__gnu_debug::list</code></td><td align="left"><code class="filename">&lt;debug/list&gt;</code></td></tr><tr><td align="left"><code class="classname">std::map</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="classname">__gnu_debug::map</code></td><td align="left"><code class="filename">&lt;debug/map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::multimap</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="classname">__gnu_debug::multimap</code></td><td align="left"><code class="filename">&lt;debug/map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::multiset</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="classname">__gnu_debug::multiset</code></td><td align="left"><code class="filename">&lt;debug/set&gt;</code></td></tr><tr><td align="left"><code class="classname">std::set</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="classname">__gnu_debug::set</code></td><td align="left"><code class="filename">&lt;debug/set&gt;</code></td></tr><tr><td align="left"><code class="classname">std::string</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="classname">__gnu_debug::string</code></td><td align="left"><code class="filename">&lt;debug/string&gt;</code></td></tr><tr><td align="left"><code class="classname">std::wstring</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="classname">__gnu_debug::wstring</code></td><td align="left"><code class="filename">&lt;debug/string&gt;</code></td></tr><tr><td align="left"><code class="classname">std::basic_string</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="classname">__gnu_debug::basic_string</code></td><td align="left"><code class="filename">&lt;debug/string&gt;</code></td></tr><tr><td align="left"><code class="classname">std::vector</code></td><td align="left"><code class="filename">vector</code></td><td align="left"><code class="classname">__gnu_debug::vector</code></td><td align="left"><code class="filename">&lt;debug/vector&gt;</code></td></tr></tbody></table></div></div><br class="table-break" /><p>In addition, when compiling in C++11 mode, these additional
  containers have additional debug capability.
! </p><div class="table"><a id="table.debug_mode_containers_cxx11"></a><p class="title"><strong>Table 17.2. Debugging Containers C++11</strong></p><div class="table-contents"><table class="table" summary="Debugging Containers C++11" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Container</th><th align="left">Header</th><th align="left">Debug container</th><th align="left">Debug header</th></tr></thead><tbody><tr><td align="left"><code class="classname">std::array</code></td><td align="left"><code class="filename">array</code></td><td align="left"><code class="classname">__gnu_debug::array</code></td><td align="left"><code class="filename">&lt;debug/array&gt;</code></td></tr><tr><td align="left"><code class="classname">std::forward_list</code></td><td align="left"><code class="filename">forward_list</code></td><td align="left"><code class="classname">__gnu_debug::forward_list</code></td><td align="left"><code class="filename">&lt;debug/forward_list&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_map</code></td><td align="left"><code class="filename">unordered_map</code></td><td align="left"><code class="classname">__gnu_debug::unordered_map</code></td><td align="left"><code class="filename">&lt;debug/unordered_map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_multimap</code></td><td align="left"><code class="filename">unordered_map</code></td><td align="left"><code class="classname">__gnu_debug::unordered_multimap</code></td><td align="left"><code class="filename">&lt;debug/unordered_map&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_set</code></td><td align="left"><code class="filename">unordered_set</code></td><td align="left"><code class="classname">__gnu_debug::unordered_set</code></td><td align="left"><code class="filename">&lt;debug/unordered_set&gt;</code></td></tr><tr><td align="left"><code class="classname">std::unordered_multiset</code></td><td align="left"><code class="filename">unordered_set</code></td><td align="left"><code class="classname">__gnu_debug::unordered_multiset</code></td><td align="left"><code class="filename">&lt;debug/unordered_set&gt;</code></td></tr></tbody></table></div></div><br class="table-break" /></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="debug_mode_semantics.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="debug_mode.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="debug_mode_design.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Semantics </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Design</td></tr></table></div></body></html>
\ No newline at end of file
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/diagnostics.html gcc-6.5.0/libstdc++-v3/doc/html/manual/diagnostics.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/diagnostics.html	Thu Oct  1 11:23:39 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/diagnostics.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 5.  Diagnostics</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="termination.html" title="Termination" /><link rel="next" href="errno.html" title="Use of errno by the library" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 5. 
    Diagnostics
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="termination.html">Prev</a> </td><th width="60%" align="center">Part II. 
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 5.  Diagnostics</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="termination.html" title="Termination" /><link rel="next" href="errno.html" title="Use of errno by the library" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 5. 
    Diagnostics
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="termination.html">Prev</a> </td><th width="60%" align="center">Part II. 
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/documentation_hacking.html gcc-6.5.0/libstdc++-v3/doc/html/manual/documentation_hacking.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/documentation_hacking.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/documentation_hacking.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Writing and Generating Documentation</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, documentation, style, docbook, doxygen" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /><link rel="prev" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /><link rel="next" href="internals.html" title="Porting to New Hardware or Operating Systems" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Writing and Generating Documentation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="appendix_porting.html">Prev</a> </td><th width="60%" align="center">Appendix B. 
    Porting and Maintenance
    
  </th><td width="20%" align="right"> <a accesskey="n" href="internals.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="appendix.porting.doc"></a>Writing and Generating Documentation</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="doc.intro"></a>Introduction</h3></div></div></div><p>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Writing and Generating Documentation</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, documentation, style, docbook, doxygen" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /><link rel="prev" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /><link rel="next" href="internals.html" title="Porting to New Hardware or Operating Systems" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Writing and Generating Documentation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="appendix_porting.html">Prev</a> </td><th width="60%" align="center">Appendix B. 
    Porting and Maintenance
    
  </th><td width="20%" align="right"> <a accesskey="n" href="internals.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="appendix.porting.doc"></a>Writing and Generating Documentation</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="doc.intro"></a>Introduction</h3></div></div></div><p>
***************
*** 112,118 ****
        supported, and are always aliased to dummy rules. These
        unsupported formats are: <span class="emphasis"><em>info</em></span>,
        <span class="emphasis"><em>ps</em></span>, and <span class="emphasis"><em>dvi</em></span>.
!     </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="doc.doxygen"></a>Doxygen</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="doxygen.prereq"></a>Prerequisites</h4></div></div></div><div class="table"><a id="table.doxygen_prereq"></a><p class="title"><strong>Table B.1. Doxygen Prerequisites</strong></p><div class="table-contents"><table summary="Doxygen Prerequisites" border="1"><colgroup><col align="center" class="c1" /><col align="center" class="c2" /><col align="center" class="c3" /></colgroup><thead><tr><th align="center">Tool</th><th align="center">Version</th><th align="center">Required By</th></tr></thead><tbody><tr><td align="center">coreutils</td><td align="center">8.5</td><td align="center">all</td></tr><tr><td align="center">bash</td><td align="center">4.1</td><td align="center">all</td></tr><tr><td align="center">doxygen</td><td align="center">1.7.6.1</td><td align="center">all</td></tr><tr><td align="center">graphviz</td><td align="center">2.26</td><td align="center">graphical hierarchies</td></tr><tr><td align="center">pdflatex</td><td align="center">2007-59</td><td align="center">pdf output</td></tr></tbody></table></div></div><br class="table-break" /><p>
  	Prerequisite tools are Bash 2.0 or later,
  	<a class="link" href="http://www.doxygen.org/" target="_top">Doxygen</a>, and
  	the <a class="link" href="http://www.gnu.org/software/coreutils/" target="_top">GNU
--- 112,118 ----
        supported, and are always aliased to dummy rules. These
        unsupported formats are: <span class="emphasis"><em>info</em></span>,
        <span class="emphasis"><em>ps</em></span>, and <span class="emphasis"><em>dvi</em></span>.
!     </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="doc.doxygen"></a>Doxygen</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="doxygen.prereq"></a>Prerequisites</h4></div></div></div><div class="table"><a id="table.doxygen_prereq"></a><p class="title"><strong>Table B.1. Doxygen Prerequisites</strong></p><div class="table-contents"><table class="table" summary="Doxygen Prerequisites" border="1"><colgroup><col align="center" class="c1" /><col align="center" class="c2" /><col align="center" class="c3" /></colgroup><thead><tr><th align="center">Tool</th><th align="center">Version</th><th align="center">Required By</th></tr></thead><tbody><tr><td align="center">coreutils</td><td align="center">8.5</td><td align="center">all</td></tr><tr><td align="center">bash</td><td align="center">4.1</td><td align="center">all</td></tr><tr><td align="center">doxygen</td><td align="center">1.7.6.1</td><td align="center">all</td></tr><tr><td align="center">graphviz</td><td align="center">2.26</td><td align="center">graphical hierarchies</td></tr><tr><td align="center">pdflatex</td><td align="center">2007-59</td><td align="center">pdf output</td></tr></tbody></table></div></div><br class="table-break" /><p>
  	Prerequisite tools are Bash 2.0 or later,
  	<a class="link" href="http://www.doxygen.org/" target="_top">Doxygen</a>, and
  	the <a class="link" href="http://www.gnu.org/software/coreutils/" target="_top">GNU
***************
*** 322,328 ****
  	writing Doxygen comments. Single and double quotes, and
  	separators in filenames are two common trouble spots. When in
  	doubt, consult the following table.
!       </p><div class="table"><a id="table.doxygen_cmp"></a><p class="title"><strong>Table B.2. HTML to Doxygen Markup Comparison</strong></p><div class="table-contents"><table summary="HTML to Doxygen Markup Comparison" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">HTML</th><th align="left">Doxygen</th></tr></thead><tbody><tr><td align="left">\</td><td align="left">\\</td></tr><tr><td align="left">"</td><td align="left">\"</td></tr><tr><td align="left">'</td><td align="left">\'</td></tr><tr><td align="left">&lt;i&gt;</td><td align="left">@a word</td></tr><tr><td align="left">&lt;b&gt;</td><td align="left">@b word</td></tr><tr><td align="left">&lt;code&gt;</td><td align="left">@c word</td></tr><tr><td align="left">&lt;em&gt;</td><td align="left">@a word</td></tr><tr><td align="left">&lt;em&gt;</td><td align="left">&lt;em&gt;two words or more&lt;/em&gt;</td></tr></tbody></table></div></div><br class="table-break" /></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="doc.docbook"></a>Docbook</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="docbook.prereq"></a>Prerequisites</h4></div></div></div><div class="table"><a id="table.docbook_prereq"></a><p class="title"><strong>Table B.3. Docbook Prerequisites</strong></p><div class="table-contents"><table summary="Docbook Prerequisites" border="1"><colgroup><col align="center" class="c1" /><col align="center" class="c2" /><col align="center" class="c3" /></colgroup><thead><tr><th align="center">Tool</th><th align="center">Version</th><th align="center">Required By</th></tr></thead><tbody><tr><td align="center">docbook5-style-xsl</td><td align="center">1.76.1</td><td align="center">all</td></tr><tr><td align="center">xsltproc</td><td align="center">1.1.26</td><td align="center">all</td></tr><tr><td align="center">xmllint</td><td align="center">2.7.7</td><td align="center">validation</td></tr><tr><td align="center">dblatex</td><td align="center">0.3</td><td align="center">pdf output</td></tr><tr><td align="center">pdflatex</td><td align="center">2007-59</td><td align="center">pdf output</td></tr><tr><td align="center">docbook2X</td><td align="center">0.8.8</td><td align="center">info output</td></tr><tr><td align="center">epub3 stylesheets</td><td align="center">b3</td><td align="center">epub output</td></tr></tbody></table></div></div><br class="table-break" /><p>
  	Editing the DocBook sources requires an XML editor. Many
  	exist: some notable options
  	include <span class="command"><strong>emacs</strong></span>, <span class="application">Kate</span>,
--- 322,328 ----
  	writing Doxygen comments. Single and double quotes, and
  	separators in filenames are two common trouble spots. When in
  	doubt, consult the following table.
!       </p><div class="table"><a id="table.doxygen_cmp"></a><p class="title"><strong>Table B.2. HTML to Doxygen Markup Comparison</strong></p><div class="table-contents"><table class="table" summary="HTML to Doxygen Markup Comparison" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">HTML</th><th align="left">Doxygen</th></tr></thead><tbody><tr><td align="left">\</td><td align="left">\\</td></tr><tr><td align="left">"</td><td align="left">\"</td></tr><tr><td align="left">'</td><td align="left">\'</td></tr><tr><td align="left">&lt;i&gt;</td><td align="left">@a word</td></tr><tr><td align="left">&lt;b&gt;</td><td align="left">@b word</td></tr><tr><td align="left">&lt;code&gt;</td><td align="left">@c word</td></tr><tr><td align="left">&lt;em&gt;</td><td align="left">@a word</td></tr><tr><td align="left">&lt;em&gt;</td><td align="left">&lt;em&gt;two words or more&lt;/em&gt;</td></tr></tbody></table></div></div><br class="table-break" /></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="doc.docbook"></a>Docbook</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="docbook.prereq"></a>Prerequisites</h4></div></div></div><div class="table"><a id="table.docbook_prereq"></a><p class="title"><strong>Table B.3. Docbook Prerequisites</strong></p><div class="table-contents"><table class="table" summary="Docbook Prerequisites" border="1"><colgroup><col align="center" class="c1" /><col align="center" class="c2" /><col align="center" class="c3" /></colgroup><thead><tr><th align="center">Tool</th><th align="center">Version</th><th align="center">Required By</th></tr></thead><tbody><tr><td align="center">docbook5-style-xsl</td><td align="center">1.76.1</td><td align="center">all</td></tr><tr><td align="center">xsltproc</td><td align="center">1.1.26</td><td align="center">all</td></tr><tr><td align="center">xmllint</td><td align="center">2.7.7</td><td align="center">validation</td></tr><tr><td align="center">dblatex</td><td align="center">0.3</td><td align="center">pdf output</td></tr><tr><td align="center">pdflatex</td><td align="center">2007-59</td><td align="center">pdf output</td></tr><tr><td align="center">docbook2X</td><td align="center">0.8.8</td><td align="center">info output</td></tr><tr><td align="center">epub3 stylesheets</td><td align="center">b3</td><td align="center">epub output</td></tr></tbody></table></div></div><br class="table-break" /><p>
  	Editing the DocBook sources requires an XML editor. Many
  	exist: some notable options
  	include <span class="command"><strong>emacs</strong></span>, <span class="application">Kate</span>,
*************** make <code class="literal">XSL_STYLE_DIR
*** 532,542 ****
  	<a class="link" href="http://www.docbook.org/tdg/en/html/part2.html" target="_top">online</a>.
  	An incomplete reference for HTML to Docbook conversion is
  	detailed in the table below.
!       </p><div class="table"><a id="table.docbook_cmp"></a><p class="title"><strong>Table B.4. HTML to Docbook XML Markup Comparison</strong></p><div class="table-contents"><table summary="HTML to Docbook XML Markup Comparison" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">HTML</th><th align="left">Docbook</th></tr></thead><tbody><tr><td align="left">&lt;p&gt;</td><td align="left">&lt;para&gt;</td></tr><tr><td align="left">&lt;pre&gt;</td><td align="left">&lt;computeroutput&gt;, &lt;programlisting&gt;,
  	&lt;literallayout&gt;</td></tr><tr><td align="left">&lt;ul&gt;</td><td align="left">&lt;itemizedlist&gt;</td></tr><tr><td align="left">&lt;ol&gt;</td><td align="left">&lt;orderedlist&gt;</td></tr><tr><td align="left">&lt;il&gt;</td><td align="left">&lt;listitem&gt;</td></tr><tr><td align="left">&lt;dl&gt;</td><td align="left">&lt;variablelist&gt;</td></tr><tr><td align="left">&lt;dt&gt;</td><td align="left">&lt;term&gt;</td></tr><tr><td align="left">&lt;dd&gt;</td><td align="left">&lt;listitem&gt;</td></tr><tr><td align="left">&lt;a href=""&gt;</td><td align="left">&lt;ulink url=""&gt;</td></tr><tr><td align="left">&lt;code&gt;</td><td align="left">&lt;literal&gt;, &lt;programlisting&gt;</td></tr><tr><td align="left">&lt;strong&gt;</td><td align="left">&lt;emphasis&gt;</td></tr><tr><td align="left">&lt;em&gt;</td><td align="left">&lt;emphasis&gt;</td></tr><tr><td align="left">"</td><td align="left">&lt;quote&gt;</td></tr></tbody></table></div></div><br class="table-break" /><p>
    And examples of detailed markup for which there are no real HTML
    equivalents are listed in the table below.
! </p><div class="table"><a id="table.docbook_elem"></a><p class="title"><strong>Table B.5. Docbook XML Element Use</strong></p><div class="table-contents"><table summary="Docbook XML Element Use" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Element</th><th align="left">Use</th></tr></thead><tbody><tr><td align="left">&lt;structname&gt;</td><td align="left">&lt;structname&gt;char_traits&lt;/structname&gt;</td></tr><tr><td align="left">&lt;classname&gt;</td><td align="left">&lt;classname&gt;string&lt;/classname&gt;</td></tr><tr><td align="left">&lt;function&gt;</td><td align="left">
  	<p>&lt;function&gt;clear()&lt;/function&gt;</p>
  	<p>&lt;function&gt;fs.clear()&lt;/function&gt;</p>
        </td></tr><tr><td align="left">&lt;type&gt;</td><td align="left">&lt;type&gt;long long&lt;/type&gt;</td></tr><tr><td align="left">&lt;varname&gt;</td><td align="left">&lt;varname&gt;fs&lt;/varname&gt;</td></tr><tr><td align="left">&lt;literal&gt;</td><td align="left">
--- 532,542 ----
  	<a class="link" href="http://www.docbook.org/tdg/en/html/part2.html" target="_top">online</a>.
  	An incomplete reference for HTML to Docbook conversion is
  	detailed in the table below.
!       </p><div class="table"><a id="table.docbook_cmp"></a><p class="title"><strong>Table B.4. HTML to Docbook XML Markup Comparison</strong></p><div class="table-contents"><table class="table" summary="HTML to Docbook XML Markup Comparison" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">HTML</th><th align="left">Docbook</th></tr></thead><tbody><tr><td align="left">&lt;p&gt;</td><td align="left">&lt;para&gt;</td></tr><tr><td align="left">&lt;pre&gt;</td><td align="left">&lt;computeroutput&gt;, &lt;programlisting&gt;,
  	&lt;literallayout&gt;</td></tr><tr><td align="left">&lt;ul&gt;</td><td align="left">&lt;itemizedlist&gt;</td></tr><tr><td align="left">&lt;ol&gt;</td><td align="left">&lt;orderedlist&gt;</td></tr><tr><td align="left">&lt;il&gt;</td><td align="left">&lt;listitem&gt;</td></tr><tr><td align="left">&lt;dl&gt;</td><td align="left">&lt;variablelist&gt;</td></tr><tr><td align="left">&lt;dt&gt;</td><td align="left">&lt;term&gt;</td></tr><tr><td align="left">&lt;dd&gt;</td><td align="left">&lt;listitem&gt;</td></tr><tr><td align="left">&lt;a href=""&gt;</td><td align="left">&lt;ulink url=""&gt;</td></tr><tr><td align="left">&lt;code&gt;</td><td align="left">&lt;literal&gt;, &lt;programlisting&gt;</td></tr><tr><td align="left">&lt;strong&gt;</td><td align="left">&lt;emphasis&gt;</td></tr><tr><td align="left">&lt;em&gt;</td><td align="left">&lt;emphasis&gt;</td></tr><tr><td align="left">"</td><td align="left">&lt;quote&gt;</td></tr></tbody></table></div></div><br class="table-break" /><p>
    And examples of detailed markup for which there are no real HTML
    equivalents are listed in the table below.
! </p><div class="table"><a id="table.docbook_elem"></a><p class="title"><strong>Table B.5. Docbook XML Element Use</strong></p><div class="table-contents"><table class="table" summary="Docbook XML Element Use" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Element</th><th align="left">Use</th></tr></thead><tbody><tr><td align="left">&lt;structname&gt;</td><td align="left">&lt;structname&gt;char_traits&lt;/structname&gt;</td></tr><tr><td align="left">&lt;classname&gt;</td><td align="left">&lt;classname&gt;string&lt;/classname&gt;</td></tr><tr><td align="left">&lt;function&gt;</td><td align="left">
  	<p>&lt;function&gt;clear()&lt;/function&gt;</p>
  	<p>&lt;function&gt;fs.clear()&lt;/function&gt;</p>
        </td></tr><tr><td align="left">&lt;type&gt;</td><td align="left">&lt;type&gt;long long&lt;/type&gt;</td></tr><tr><td align="left">&lt;varname&gt;</td><td align="left">&lt;varname&gt;fs&lt;/varname&gt;</td></tr><tr><td align="left">&lt;literal&gt;</td><td align="left">
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/dynamic_memory.html gcc-6.5.0/libstdc++-v3/doc/html/manual/dynamic_memory.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/dynamic_memory.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/dynamic_memory.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Dynamic Memory</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="support.html" title="Chapter 4.  Support" /><link rel="prev" href="support.html" title="Chapter 4.  Support" /><link rel="next" href="termination.html" title="Termination" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Dynamic Memory</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="support.html">Prev</a> </td><th width="60%" align="center">Chapter 4. 
    Support
    
  </th><td width="20%" align="right"> <a accesskey="n" href="termination.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.support.memory"></a>Dynamic Memory</h2></div></div></div><p>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Dynamic Memory</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="support.html" title="Chapter 4.  Support" /><link rel="prev" href="support.html" title="Chapter 4.  Support" /><link rel="next" href="termination.html" title="Termination" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Dynamic Memory</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="support.html">Prev</a> </td><th width="60%" align="center">Chapter 4. 
    Support
    
  </th><td width="20%" align="right"> <a accesskey="n" href="termination.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.support.memory"></a>Dynamic Memory</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/errno.html gcc-6.5.0/libstdc++-v3/doc/html/manual/errno.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/errno.html	Thu Oct  1 16:02:54 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/errno.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Use of errno by the library</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="diagnostics.html" title="Chapter 5.  Diagnostics" /><link rel="prev" href="diagnostics.html" title="Chapter 5.  Diagnostics" /><link rel="next" href="concept_checking.html" title="Concept Checking" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Use of errno by the library</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="diagnostics.html">Prev</a> </td><th width="60%" align="center">Chapter 5. 
    Diagnostics
    
  </th><td width="20%" align="right"> <a accesskey="n" href="concept_checking.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.diagnostics.errno"></a>Use of errno by the library</h2></div></div></div><p>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Use of errno by the library</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="diagnostics.html" title="Chapter 5.  Diagnostics" /><link rel="prev" href="diagnostics.html" title="Chapter 5.  Diagnostics" /><link rel="next" href="concept_checking.html" title="Concept Checking" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Use of errno by the library</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="diagnostics.html">Prev</a> </td><th width="60%" align="center">Chapter 5. 
    Diagnostics
    
  </th><td width="20%" align="right"> <a accesskey="n" href="concept_checking.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.diagnostics.errno"></a>Use of errno by the library</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_algorithms.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_algorithms.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_algorithms.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_algorithms.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 25. Algorithms</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_utilities.html" title="Chapter 24. Utilities" /><link rel="next" href="ext_numerics.html" title="Chapter 26. Numerics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 25. Algorithms</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_utilities.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_numerics.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.algorithms"></a>Chapter 25. Algorithms</h2></div></div></div><p>25.1.6 (count, count_if) is extended with two more versions of count
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 25. Algorithms</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_utilities.html" title="Chapter 24. Utilities" /><link rel="next" href="ext_numerics.html" title="Chapter 26. Numerics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 25. Algorithms</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_utilities.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_numerics.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.algorithms"></a>Chapter 25. Algorithms</h2></div></div></div><p>25.1.6 (count, count_if) is extended with two more versions of count
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_compile_checks.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_compile_checks.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_compile_checks.html	Mon Apr 27 12:30:26 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_compile_checks.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 16. Compile Time Checks</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_preface.html" title="" /><link rel="next" href="debug_mode.html" title="Chapter 17. Debug Mode" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 16. Compile Time Checks</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_preface.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="debug_mode.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.compile_checks"></a>Chapter 16. Compile Time Checks</h2></div></div></div><p>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 16. Compile Time Checks</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_preface.html" title="" /><link rel="next" href="debug_mode.html" title="Chapter 17. Debug Mode" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 16. Compile Time Checks</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_preface.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="debug_mode.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.compile_checks"></a>Chapter 16. Compile Time Checks</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_concurrency.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_concurrency.html
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  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 30. Concurrency</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_demangling.html" title="Chapter 29. Demangling" /><link rel="next" href="ext_concurrency_impl.html" title="Implementation" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 30. Concurrency</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_demangling.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_concurrency_impl.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.concurrency"></a>Chapter 30. Concurrency</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="ext_concurrency.html#manual.ext.concurrency.design">Design</a></span></dt><dd><dl><dt><span class="section"><a href="ext_concurrency.html#manual.ext.concurrency.design.threads">Interface to Locks and Mutexes</a></span></dt><dt><span class="section"><a href="ext_concurrency.html#manual.ext.concurrency.design.atomics">Interface to Atomic Functions</a></span></dt></dl></dd><dt><span class="section"><a href="ext_concurrency_impl.html">Implementation</a></span></dt><dd><dl><dt><span class="section"><a href="ext_concurrency_impl.html#manual.ext.concurrency.impl.atomic_fallbacks">Using Built-in Atomic Functions</a></span></dt><dt><span class="section"><a href="ext_concurrency_impl.html#manual.ext.concurrency.impl.thread">Thread Abstraction</a></span></dt></dl></dd><dt><span class="section"><a href="ext_concurrency_use.html">Use</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.concurrency.design"></a>Design</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.concurrency.design.threads"></a>Interface to Locks and Mutexes</h3></div></div></div><p>The file <code class="filename">&lt;ext/concurrence.h&gt;</code>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 30. Concurrency</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_demangling.html" title="Chapter 29. Demangling" /><link rel="next" href="ext_concurrency_impl.html" title="Implementation" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 30. Concurrency</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_demangling.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_concurrency_impl.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.concurrency"></a>Chapter 30. Concurrency</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="ext_concurrency.html#manual.ext.concurrency.design">Design</a></span></dt><dd><dl><dt><span class="section"><a href="ext_concurrency.html#manual.ext.concurrency.design.threads">Interface to Locks and Mutexes</a></span></dt><dt><span class="section"><a href="ext_concurrency.html#manual.ext.concurrency.design.atomics">Interface to Atomic Functions</a></span></dt></dl></dd><dt><span class="section"><a href="ext_concurrency_impl.html">Implementation</a></span></dt><dd><dl><dt><span class="section"><a href="ext_concurrency_impl.html#manual.ext.concurrency.impl.atomic_fallbacks">Using Built-in Atomic Functions</a></span></dt><dt><span class="section"><a href="ext_concurrency_impl.html#manual.ext.concurrency.impl.thread">Thread Abstraction</a></span></dt></dl></dd><dt><span class="section"><a href="ext_concurrency_use.html">Use</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.concurrency.design"></a>Design</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.concurrency.design.threads"></a>Interface to Locks and Mutexes</h3></div></div></div><p>The file <code class="filename">&lt;ext/concurrence.h&gt;</code>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_concurrency_impl.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_concurrency_impl.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_concurrency_impl.html	Mon Apr 20 11:07:50 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_concurrency_impl.html	Wed Oct 25 14:16:26 2017
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  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Implementation</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="ext_concurrency.html" title="Chapter 30. Concurrency" /><link rel="prev" href="ext_concurrency.html" title="Chapter 30. Concurrency" /><link rel="next" href="ext_concurrency_use.html" title="Use" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Implementation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_concurrency.html">Prev</a> </td><th width="60%" align="center">Chapter 30. Concurrency</th><td width="20%" align="right"> <a accesskey="n" href="ext_concurrency_use.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.concurrency.impl"></a>Implementation</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.concurrency.impl.atomic_fallbacks"></a>Using Built-in Atomic Functions</h3></div></div></div><p>The functions for atomic operations described above are either
  implemented via compiler intrinsics (if the underlying host is
  capable) or by library fallbacks.</p><p>Compiler intrinsics (builtins) are always preferred.  However, as
  the compiler builtins for atomics are not universally implemented,
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Implementation</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="ext_concurrency.html" title="Chapter 30. Concurrency" /><link rel="prev" href="ext_concurrency.html" title="Chapter 30. Concurrency" /><link rel="next" href="ext_concurrency_use.html" title="Use" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Implementation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_concurrency.html">Prev</a> </td><th width="60%" align="center">Chapter 30. Concurrency</th><td width="20%" align="right"> <a accesskey="n" href="ext_concurrency_use.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.concurrency.impl"></a>Implementation</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.concurrency.impl.atomic_fallbacks"></a>Using Built-in Atomic Functions</h3></div></div></div><p>The functions for atomic operations described above are either
  implemented via compiler intrinsics (if the underlying host is
  capable) or by library fallbacks.</p><p>Compiler intrinsics (builtins) are always preferred.  However, as
  the compiler builtins for atomics are not universally implemented,
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_concurrency_use.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_concurrency_use.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_concurrency_use.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_concurrency_use.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Use</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="ext_concurrency.html" title="Chapter 30. Concurrency" /><link rel="prev" href="ext_concurrency_impl.html" title="Implementation" /><link rel="next" href="appendix.html" title="Part IV.  Appendices" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Use</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_concurrency_impl.html">Prev</a> </td><th width="60%" align="center">Chapter 30. Concurrency</th><td width="20%" align="right"> <a accesskey="n" href="appendix.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.concurrency.use"></a>Use</h2></div></div></div><p>Typical usage of the last two constructs is demonstrated as follows:
  </p><pre class="programlisting">
  #include &lt;ext/concurrence.h&gt;
  
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Use</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="ext_concurrency.html" title="Chapter 30. Concurrency" /><link rel="prev" href="ext_concurrency_impl.html" title="Implementation" /><link rel="next" href="appendix.html" title="Part IV.  Appendices" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Use</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_concurrency_impl.html">Prev</a> </td><th width="60%" align="center">Chapter 30. Concurrency</th><td width="20%" align="right"> <a accesskey="n" href="appendix.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.concurrency.use"></a>Use</h2></div></div></div><p>Typical usage of the last two constructs is demonstrated as follows:
  </p><pre class="programlisting">
  #include &lt;ext/concurrence.h&gt;
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_containers.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_containers.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 23. HP/SGI Extensions</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="policy_data_structures_ack.html" title="Acknowledgments" /><link rel="next" href="ext_sgi.html" title="Deprecated" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 23. HP/SGI Extensions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures_ack.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_sgi.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.containers"></a>Chapter 23. HP/SGI Extensions</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="ext_containers.html#manual.ext.containers.sgi">Backwards Compatibility</a></span></dt><dt><span class="section"><a href="ext_sgi.html">Deprecated</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.containers.sgi"></a>Backwards Compatibility</h2></div></div></div><p>A few extensions and nods to backwards-compatibility have
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 23. HP/SGI Extensions</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="policy_data_structures_ack.html" title="Acknowledgments" /><link rel="next" href="ext_sgi.html" title="Deprecated" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 23. HP/SGI Extensions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures_ack.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_sgi.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.containers"></a>Chapter 23. HP/SGI Extensions</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="ext_containers.html#manual.ext.containers.sgi">Backwards Compatibility</a></span></dt><dt><span class="section"><a href="ext_sgi.html">Deprecated</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.containers.sgi"></a>Backwards Compatibility</h2></div></div></div><p>A few extensions and nods to backwards-compatibility have
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_demangling.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_demangling.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_demangling.html	Tue Apr  2 00:09:44 2013
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 29. Demangling</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="ext_io.html" title="Chapter 28. Input and Output" /><link rel="next" href="ext_concurrency.html" title="Chapter 30. Concurrency" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 29. Demangling</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ext_io.html">Prev</a> </td><th width="60%" align="center">Part III. 
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    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="ext_concurrency.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.demangle"></a>Chapter 29. Demangling</h2></div></div></div><p>
***************
*** 7,13 ****
      original C++ source identifiers is called
      <span class="quote">“<span class="quote">demangling.</span>”</span>
    </p><p>
!     If you have read the <a class="link" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01115.html" target="_top">source
      documentation for <code class="code">namespace abi</code></a> then you are
      aware of the cross-vendor C++ ABI in use by GCC.  One of the
      exposed functions is used for demangling,
--- 7,13 ----
      original C++ source identifiers is called
      <span class="quote">“<span class="quote">demangling.</span>”</span>
    </p><p>
!     If you have read the <a class="link" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html" target="_top">source
      documentation for <code class="code">namespace abi</code></a> then you are
      aware of the cross-vendor C++ ABI in use by GCC.  One of the
      exposed functions is used for demangling,
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/ext_io.html gcc-6.5.0/libstdc++-v3/doc/html/manual/ext_io.html
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/generalized_numeric_operations.html gcc-6.5.0/libstdc++-v3/doc/html/manual/generalized_numeric_operations.html
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    Introduction
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    Introduction
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  	  </a></dt><dt>22.10. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.3.3.23">Non-unique Mapping Containers</a></dt><dt>22.11. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.4.3.5">Point Iterator Hierarchy</a></dt><dt>22.12. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.4.4.5">Invalidation Guarantee Tags Hierarchy</a></dt><dt>22.13. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.5.7.4">Container Tag Hierarchy</a></dt><dt>22.14. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.2.3">Hash functions, ranged-hash functions, and
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  		diagram</a></dt><dt>22.21. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.3.5.3.10">Standard resize policy size sequence
! 		diagram</a></dt><dt>22.22. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.5">Tree node invariants</a></dt><dt>22.23. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.8">Tree node invalidation</a></dt><dt>22.24. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.3">A tree and its update policy</a></dt><dt>22.25. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.8">Restoring node invariants</a></dt><dt>22.26. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.10">Insert update sequence</a></dt><dt>22.27. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.20">Useless update path</a></dt><dt>22.28. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.4.3.2.10">A PATRICIA trie</a></dt><dt>22.29. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.4.3.3.5">A trie and its update policy</a></dt><dt>22.30. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.5.3.3.3">A simple list</a></dt><dt>22.31. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.5.3.3.6">The counter algorithm</a></dt><dt>22.32. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.6.3.3.3">Underlying Priority-Queue Data-Structures.</a></dt><dt>22.33. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.6.3.4.4">Priority-Queue Data-Structure Tags.</a></dt><dt>B.1. <a href="appendix_porting.html#fig.build_hacking.deps">Configure and Build File Dependencies</a></dt></dl></div><div class="list-of-tables"><p><strong>List of Tables</strong></p><dl><dt>1.1. <a href="status.html#table.cxx98_status">C++ 1998/2003 Implementation Status</a></dt><dt>1.2. <a href="status.html#table.cxx11_status">C++ 2011 Implementation Status</a></dt><dt>1.3. <a href="status.html#table.cxx14_status">C++ 2014 Implementation Status</a></dt><dt>1.4. <a href="status.html#table.ts_status">C++ Technical Specifications Implementation Status</a></dt><dt>1.5. <a href="status.html#table.cxx1z_status">C++ 201z Implementation Status</a></dt><dt>1.6. <a href="status.html#table.cxx1z_ts_status">C++ Technical Specifications Implementation Status</a></dt><dt>1.7. <a href="status.html#table.tr1_status">C++ TR1 Implementation Status</a></dt><dt>1.8. <a href="status.html#table.decfp_status">C++ TR 24733 Implementation Status</a></dt><dt>3.1. <a href="using.html#table.cmd_options">C++ Command Options</a></dt><dt>3.2. <a href="using_headers.html#table.cxx98_headers">C++ 1998 Library Headers</a></dt><dt>3.3. <a href="using_headers.html#table.cxx98_cheaders">C++ 1998 Library Headers for C Library Facilities</a></dt><dt>3.4. <a href="using_headers.html#table.cxx11_headers">C++ 2011 Library Headers</a></dt><dt>3.5. <a href="using_headers.html#table.cxx11_cheaders">C++ 2011 Library Headers for C Library Facilities</a></dt><dt>3.6. <a href="using_headers.html#table.tr1_headers">C++ TR 1 Library Headers</a></dt><dt>3.7. <a href="using_headers.html#table.tr1_cheaders">C++ TR 1 Library Headers for C Library Facilities</a></dt><dt>3.8. <a href="using_headers.html#table.decfp_headers">C++ TR 24733 Decimal Floating-Point Header</a></dt><dt>3.9. <a href="using_headers.html#table.abi_headers">C++ ABI Headers</a></dt><dt>3.10. <a href="using_headers.html#table.ext_headers">Extension Headers</a></dt><dt>3.11. <a href="using_headers.html#table.debug_headers">Extension Debug Headers</a></dt><dt>3.12. <a href="using_headers.html#table.profile_headers">Extension Profile Headers</a></dt><dt>3.13. <a href="using_headers.html#table.parallel_headers">Extension Parallel Headers</a></dt><dt>17.1. <a href="debug_mode_using.html#table.debug_mode_containers">Debugging Containers</a></dt><dt>17.2. <a href="debug_mode_using.html#table.debug_mode_containers_cxx11">Debugging Containers C++11</a></dt><dt>18.1. <a href="parallel_mode_using.html#table.parallel_algos">Parallel Algorithms</a></dt><dt>19.1. <a href="profile_mode_design.html#table.profile_code_loc">Profile Code Location</a></dt><dt>19.2. <a href="profile_mode_diagnostics.html#table.profile_diagnostics">Profile Diagnostics</a></dt><dt>21.1. <a href="bitmap_allocator_impl.html#table.bitmap_alloc">Bitmap Allocator Memory Map</a></dt><dt>B.1. <a href="documentation_hacking.html#table.doxygen_prereq">Doxygen Prerequisites</a></dt><dt>B.2. <a href="documentation_hacking.html#table.doxygen_cmp">HTML to Doxygen Markup Comparison</a></dt><dt>B.3. <a href="documentation_hacking.html#table.docbook_prereq">Docbook Prerequisites</a></dt><dt>B.4. <a href="documentation_hacking.html#table.docbook_cmp">HTML to Docbook XML Markup Comparison</a></dt><dt>B.5. <a href="documentation_hacking.html#table.docbook_elem">Docbook XML Element Use</a></dt><dt>B.6. <a href="api.html#table.extension_allocators">Extension Allocators</a></dt><dt>B.7. <a href="api.html#table.extension_allocators2">Extension Allocators Continued</a></dt></dl></div><div class="list-of-equations"><p><strong>List of Equations</strong></p><dl><dt>22.1. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.2.15">Ranged Hash Function</a></dt><dt>22.2. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.3.3">Range-Hashing, Division Method</a></dt><dt>22.3. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.3.9">Division via Prime Modulo</a></dt><dt>22.4. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.3.11">Division via Bit Mask</a></dt><dt>22.5. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.4.7">
  		A Standard String Hash Function
  	      </a></dt><dt>22.6. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.4.12">
  		Only k String DNA Hash
--- 149,155 ----
  	  </a></dt><dt>22.10. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.3.3.23">Non-unique Mapping Containers</a></dt><dt>22.11. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.4.3.5">Point Iterator Hierarchy</a></dt><dt>22.12. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.4.4.5">Invalidation Guarantee Tags Hierarchy</a></dt><dt>22.13. <a href="policy_data_structures_design.html#id-1.3.5.9.4.3.5.7.4">Container Tag Hierarchy</a></dt><dt>22.14. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.2.3">Hash functions, ranged-hash functions, and
  	      range-hashing functions</a></dt><dt>22.15. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.5.3.4">Insert hash sequence diagram</a></dt><dt>22.16. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.5.3.6">Insert hash sequence diagram with a null policy</a></dt><dt>22.17. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.5.5.5">Hash policy class diagram</a></dt><dt>22.18. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.3.4.7">Balls and bins</a></dt><dt>22.19. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.3.5.3.6">Insert resize sequence diagram</a></dt><dt>22.20. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.3.5.3.9">Standard resize policy trigger sequence
  		diagram</a></dt><dt>22.21. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.3.5.3.10">Standard resize policy size sequence
! 		diagram</a></dt><dt>22.22. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.5">Tree node invariants</a></dt><dt>22.23. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.8">Tree node invalidation</a></dt><dt>22.24. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.3">A tree and its update policy</a></dt><dt>22.25. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.8">Restoring node invariants</a></dt><dt>22.26. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.10">Insert update sequence</a></dt><dt>22.27. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.3.3.2.11.20">Useless update path</a></dt><dt>22.28. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.4.3.2.10">A PATRICIA trie</a></dt><dt>22.29. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.4.3.3.5">A trie and its update policy</a></dt><dt>22.30. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.5.3.3.3">A simple list</a></dt><dt>22.31. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.5.3.3.6">The counter algorithm</a></dt><dt>22.32. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.6.3.3.3">Underlying Priority-Queue Data-Structures.</a></dt><dt>22.33. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.6.3.4.4">Priority-Queue Data-Structure Tags.</a></dt><dt>B.1. <a href="appendix_porting.html#fig.build_hacking.deps">Configure and Build File Dependencies</a></dt></dl></div><div class="list-of-tables"><p><strong>List of Tables</strong></p><dl><dt>1.1. <a href="status.html#table.cxx98_status">C++ 1998/2003 Implementation Status</a></dt><dt>1.2. <a href="status.html#table.cxx11_status">C++ 2011 Implementation Status</a></dt><dt>1.3. <a href="status.html#table.cxx14_status">C++ 2014 Implementation Status</a></dt><dt>1.4. <a href="status.html#table.ts_status">C++ Technical Specifications Implementation Status</a></dt><dt>1.5. <a href="status.html#table.cxx1z_status">C++ 201z Implementation Status</a></dt><dt>1.6. <a href="status.html#table.cxx1z_ts_status">C++ Technical Specifications Implementation Status</a></dt><dt>1.7. <a href="status.html#table.tr1_status">C++ TR1 Implementation Status</a></dt><dt>1.8. <a href="status.html#table.decfp_status">C++ TR 24733 Implementation Status</a></dt><dt>3.1. <a href="using.html#table.cmd_options">C++ Command Options</a></dt><dt>3.2. <a href="using_headers.html#table.cxx98_headers">C++ 1998 Library Headers</a></dt><dt>3.3. <a href="using_headers.html#table.cxx98_cheaders">C++ 1998 Library Headers for C Library Facilities</a></dt><dt>3.4. <a href="using_headers.html#table.cxx98_deprheaders">C++ 1998 Deprecated Library Header</a></dt><dt>3.5. <a href="using_headers.html#table.cxx11_headers">C++ 2011 Library Headers</a></dt><dt>3.6. <a href="using_headers.html#table.cxx11_cheaders">C++ 2011 Library Headers for C Library Facilities</a></dt><dt>3.7. <a href="using_headers.html#table.cxx14_headers">C++ 2014 Library Header</a></dt><dt>3.8. <a href="using_headers.html#table.filesystemts_headers">File System TS Header</a></dt><dt>3.9. <a href="using_headers.html#table.libfundts_headers">Library Fundamentals TS Headers</a></dt><dt>3.10. <a href="using_headers.html#table.tr1_headers">C++ TR 1 Library Headers</a></dt><dt>3.11. <a href="using_headers.html#table.tr1_cheaders">C++ TR 1 Library Headers for C Library Facilities</a></dt><dt>3.12. <a href="using_headers.html#table.decfp_headers">C++ TR 24733 Decimal Floating-Point Header</a></dt><dt>3.13. <a href="using_headers.html#table.abi_headers">C++ ABI Headers</a></dt><dt>3.14. <a href="using_headers.html#table.ext_headers">Extension Headers</a></dt><dt>3.15. <a href="using_headers.html#table.debug_headers">Extension Debug Headers</a></dt><dt>3.16. <a href="using_headers.html#table.profile_headers">Extension Profile Headers</a></dt><dt>3.17. <a href="using_headers.html#table.parallel_headers">Extension Parallel Headers</a></dt><dt>17.1. <a href="debug_mode_using.html#table.debug_mode_containers">Debugging Containers</a></dt><dt>17.2. <a href="debug_mode_using.html#table.debug_mode_containers_cxx11">Debugging Containers C++11</a></dt><dt>18.1. <a href="parallel_mode_using.html#table.parallel_algos">Parallel Algorithms</a></dt><dt>19.1. <a href="profile_mode_design.html#table.profile_code_loc">Profile Code Location</a></dt><dt>19.2. <a href="profile_mode_diagnostics.html#table.profile_diagnostics">Profile Diagnostics</a></dt><dt>21.1. <a href="bitmap_allocator_impl.html#table.bitmap_alloc">Bitmap Allocator Memory Map</a></dt><dt>B.1. <a href="documentation_hacking.html#table.doxygen_prereq">Doxygen Prerequisites</a></dt><dt>B.2. <a href="documentation_hacking.html#table.doxygen_cmp">HTML to Doxygen Markup Comparison</a></dt><dt>B.3. <a href="documentation_hacking.html#table.docbook_prereq">Docbook Prerequisites</a></dt><dt>B.4. <a href="documentation_hacking.html#table.docbook_cmp">HTML to Docbook XML Markup Comparison</a></dt><dt>B.5. <a href="documentation_hacking.html#table.docbook_elem">Docbook XML Element Use</a></dt><dt>B.6. <a href="api.html#table.extension_allocators">Extension Allocators</a></dt><dt>B.7. <a href="api.html#table.extension_allocators2">Extension Allocators Continued</a></dt></dl></div><div class="list-of-equations"><p><strong>List of Equations</strong></p><dl><dt>22.1. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.2.15">Ranged Hash Function</a></dt><dt>22.2. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.3.3">Range-Hashing, Division Method</a></dt><dt>22.3. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.3.9">Division via Prime Modulo</a></dt><dt>22.4. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.3.11">Division via Bit Mask</a></dt><dt>22.5. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.4.7">
  		A Standard String Hash Function
  	      </a></dt><dt>22.6. <a href="policy_data_structures_design.html#id-1.3.5.9.4.4.2.3.2.4.12">
  		Only k String DNA Hash
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    Input and Output
    
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/iterators.html gcc-6.5.0/libstdc++-v3/doc/html/manual/iterators.html
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/license.html gcc-6.5.0/libstdc++-v3/doc/html/manual/license.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/license.html	Tue Apr  2 00:09:44 2013
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>License</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="status.html" title="Chapter 1. Status" /><link rel="prev" href="status.html" title="Chapter 1. Status" /><link rel="next" href="bugs.html" title="Bugs" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">License</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="status.html">Prev</a> </td><th width="60%" align="center">Chapter 1. Status</th><td width="20%" align="right"> <a accesskey="n" href="bugs.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.status.license"></a>License</h2></div></div></div><p>
      There are two licenses affecting GNU libstdc++: one for the code,
      and one for the documentation.
      </p><p>
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>License</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="status.html" title="Chapter 1. Status" /><link rel="prev" href="status.html" title="Chapter 1. Status" /><link rel="next" href="bugs.html" title="Bugs" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">License</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="status.html">Prev</a> </td><th width="60%" align="center">Chapter 1. Status</th><td width="20%" align="right"> <a accesskey="n" href="bugs.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.status.license"></a>License</h2></div></div></div><p>
      There are two licenses affecting GNU libstdc++: one for the code,
      and one for the documentation.
      </p><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/localization.html gcc-6.5.0/libstdc++-v3/doc/html/manual/localization.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/localization.html	Mon Jun  9 14:47:17 2014
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    Localization
    
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 8.  Localization</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="strings.html" title="Chapter 7.  Strings" /><link rel="next" href="facets.html" title="Facets" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 8. 
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/make.html gcc-6.5.0/libstdc++-v3/doc/html/manual/make.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/make.html	Tue Apr  2 00:09:44 2013
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Make</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="setup.html" title="Chapter 2. Setup" /><link rel="prev" href="configure.html" title="Configure" /><link rel="next" href="using.html" title="Chapter 3. Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Make</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="configure.html">Prev</a> </td><th width="60%" align="center">Chapter 2. Setup</th><td width="20%" align="right"> <a accesskey="n" href="using.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.setup.make"></a>Make</h2></div></div></div><p>If you have never done this before, you should read the basic
        <a class="link" href="http://gcc.gnu.org/install/" target="_top">GCC Installation
        Instructions</a> first.  Read <span class="emphasis"><em>all of them</em></span>.
        <span class="emphasis"><em>Twice.</em></span>
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        <a class="link" href="http://gcc.gnu.org/install/" target="_top">GCC Installation
        Instructions</a> first.  Read <span class="emphasis"><em>all of them</em></span>.
        <span class="emphasis"><em>Twice.</em></span>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/memory.html gcc-6.5.0/libstdc++-v3/doc/html/manual/memory.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/memory.html	Fri Jun 16 12:41:51 2017
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    Utilities
    
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator.html gcc-6.5.0/libstdc++-v3/doc/html/manual/mt_allocator.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator.html	Tue Apr  2 00:09:44 2013
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    Extensions
    
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    Extensions
    
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator_design.html gcc-6.5.0/libstdc++-v3/doc/html/manual/mt_allocator_design.html
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  describing the characteristics of the memory pool, a policy class
  containing this pool that links instantiation types to common or
  individual pools, and a class inheriting from the policy class that is
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design Issues</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="next" href="mt_allocator_impl.html" title="Implementation" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design Issues</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator_impl.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.design_issues"></a>Design Issues</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="allocator.mt.overview"></a>Overview</h3></div></div></div><p> There are three general components to the allocator: a datum
  describing the characteristics of the memory pool, a policy class
  containing this pool that links instantiation types to common or
  individual pools, and a class inheriting from the policy class that is
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator_ex_multi.html gcc-6.5.0/libstdc++-v3/doc/html/manual/mt_allocator_ex_multi.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Multiple Thread Example</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator_ex_single.html" title="Single Thread Example" /><link rel="next" href="bitmap_allocator.html" title="Chapter 21. The bitmap_allocator" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Multiple Thread Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator_ex_single.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="bitmap_allocator.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.example_multi"></a>Multiple Thread Example</h2></div></div></div><p>
  In the ST example we never used the thread_id variable present in each block.
  Let's start by explaining the purpose of this in a MT application.
  </p><p>
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Multiple Thread Example</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator_ex_single.html" title="Single Thread Example" /><link rel="next" href="bitmap_allocator.html" title="Chapter 21. The bitmap_allocator" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Multiple Thread Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator_ex_single.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="bitmap_allocator.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.example_multi"></a>Multiple Thread Example</h2></div></div></div><p>
  In the ST example we never used the thread_id variable present in each block.
  Let's start by explaining the purpose of this in a MT application.
  </p><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator_ex_single.html gcc-6.5.0/libstdc++-v3/doc/html/manual/mt_allocator_ex_single.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator_ex_single.html	Tue Apr  2 00:09:44 2013
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Single Thread Example</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator_impl.html" title="Implementation" /><link rel="next" href="mt_allocator_ex_multi.html" title="Multiple Thread Example" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Single Thread Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator_impl.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator_ex_multi.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.example_single"></a>Single Thread Example</h2></div></div></div><p>
  Let's start by describing how the data on a freelist is laid out in memory.
  This is the first two blocks in freelist for thread id 3 in bin 3 (8 bytes):
  </p><pre class="programlisting">
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Single Thread Example</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator_impl.html" title="Implementation" /><link rel="next" href="mt_allocator_ex_multi.html" title="Multiple Thread Example" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Single Thread Example</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator_impl.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator_ex_multi.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.example_single"></a>Single Thread Example</h2></div></div></div><p>
  Let's start by describing how the data on a freelist is laid out in memory.
  This is the first two blocks in freelist for thread id 3 in bin 3 (8 bytes):
  </p><pre class="programlisting">
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/mt_allocator_impl.html gcc-6.5.0/libstdc++-v3/doc/html/manual/mt_allocator_impl.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Implementation</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator_design.html" title="Design Issues" /><link rel="next" href="mt_allocator_ex_single.html" title="Single Thread Example" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Implementation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator_design.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator_ex_single.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.impl"></a>Implementation</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="allocator.mt.tune"></a>Tunable Parameters</h3></div></div></div><p>Certain allocation parameters can be modified, or tuned. There
  exists a nested <code class="code">struct __pool_base::_Tune</code> that contains all
  these parameters, which include settings for
  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Alignment</p></li><li class="listitem"><p>Maximum bytes before calling <code class="code">::operator new</code> directly</p></li><li class="listitem"><p>Minimum bytes</p></li><li class="listitem"><p>Size of underlying global allocations</p></li><li class="listitem"><p>Maximum number of supported threads</p></li><li class="listitem"><p>Migration of deallocations to the global free list</p></li><li class="listitem"><p>Shunt for global <code class="code">new</code> and <code class="code">delete</code></p></li></ul></div><p>Adjusting parameters for a given instance of an allocator can only
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Implementation</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, allocator" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /><link rel="prev" href="mt_allocator_design.html" title="Design Issues" /><link rel="next" href="mt_allocator_ex_single.html" title="Single Thread Example" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Implementation</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="mt_allocator_design.html">Prev</a> </td><th width="60%" align="center">Chapter 20. The mt_allocator</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator_ex_single.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.impl"></a>Implementation</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="allocator.mt.tune"></a>Tunable Parameters</h3></div></div></div><p>Certain allocation parameters can be modified, or tuned. There
  exists a nested <code class="code">struct __pool_base::_Tune</code> that contains all
  these parameters, which include settings for
  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Alignment</p></li><li class="listitem"><p>Maximum bytes before calling <code class="code">::operator new</code> directly</p></li><li class="listitem"><p>Minimum bytes</p></li><li class="listitem"><p>Size of underlying global allocations</p></li><li class="listitem"><p>Maximum number of supported threads</p></li><li class="listitem"><p>Migration of deallocations to the global free list</p></li><li class="listitem"><p>Shunt for global <code class="code">new</code> and <code class="code">delete</code></p></li></ul></div><p>Adjusting parameters for a given instance of an allocator can only
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/numerics.html gcc-6.5.0/libstdc++-v3/doc/html/manual/numerics.html
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    Numerics
    
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    Numerics
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="algorithms.html">Prev</a> </td><th width="60%" align="center">Part II. 
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/numerics_and_c.html gcc-6.5.0/libstdc++-v3/doc/html/manual/numerics_and_c.html
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    Numerics
    
  </th><td width="20%" align="right"> <a accesskey="n" href="io.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.numerics.c"></a>Interacting with C</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="numerics.c.array"></a>Numerics vs. Arrays</h3></div></div></div><p>One of the major reasons why FORTRAN can chew through numbers so well
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Interacting with C</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="numerics.html" title="Chapter 12.  Numerics" /><link rel="prev" href="generalized_numeric_operations.html" title="Generalized Operations" /><link rel="next" href="io.html" title="Chapter 13.  Input and Output" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Interacting with C</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="generalized_numeric_operations.html">Prev</a> </td><th width="60%" align="center">Chapter 12. 
    Numerics
    
  </th><td width="20%" align="right"> <a accesskey="n" href="io.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.numerics.c"></a>Interacting with C</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="numerics.c.array"></a>Numerics vs. Arrays</h3></div></div></div><p>One of the major reasons why FORTRAN can chew through numbers so well
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    Utilities
    
  </th><td width="20%" align="right"> <a accesskey="n" href="memory.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.util.pairs"></a>Pairs</h2></div></div></div><p>The <code class="code">pair&lt;T1,T2&gt;</code> is a simple and handy way to
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    Utilities
    
  </th><td width="20%" align="right"> <a accesskey="n" href="memory.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.util.pairs"></a>Pairs</h2></div></div></div><p>The <code class="code">pair&lt;T1,T2&gt;</code> is a simple and handy way to
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 18. Parallel Mode</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="debug_mode_design.html" title="Design" /><link rel="next" href="parallel_mode_semantics.html" title="Semantics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 18. Parallel Mode</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode_design.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_semantics.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.parallel_mode"></a>Chapter 18. Parallel Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="parallel_mode.html#manual.ext.parallel_mode.intro">Intro</a></span></dt><dt><span class="section"><a href="parallel_mode_semantics.html">Semantics</a></span></dt><dt><span class="section"><a href="parallel_mode_using.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="parallel_mode_using.html#parallel_mode.using.prereq_flags">Prerequisite Compiler Flags</a></span></dt><dt><span class="section"><a href="parallel_mode_using.html#parallel_mode.using.parallel_mode">Using Parallel Mode</a></span></dt><dt><span class="section"><a href="parallel_mode_using.html#parallel_mode.using.specific">Using Specific Parallel Components</a></span></dt></dl></dd><dt><span class="section"><a href="parallel_mode_design.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.intro">Interface Basics</a></span></dt><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning">Configuration and Tuning</a></span></dt><dd><dl><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning.omp">Setting up the OpenMP Environment</a></span></dt><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning.compile">Compile Time Switches</a></span></dt><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning.settings">Run Time Settings and Defaults</a></span></dt></dl></dd><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.impl">Implementation Namespaces</a></span></dt></dl></dd><dt><span class="section"><a href="parallel_mode_test.html">Testing</a></span></dt><dt><span class="bibliography"><a href="parallel_mode.html#parallel_mode.biblio">Bibliography</a></span></dt></dl></div><p> The libstdc++ parallel mode is an experimental parallel
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 18. Parallel Mode</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="debug_mode_design.html" title="Design" /><link rel="next" href="parallel_mode_semantics.html" title="Semantics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 18. Parallel Mode</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="debug_mode_design.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_semantics.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.parallel_mode"></a>Chapter 18. Parallel Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="parallel_mode.html#manual.ext.parallel_mode.intro">Intro</a></span></dt><dt><span class="section"><a href="parallel_mode_semantics.html">Semantics</a></span></dt><dt><span class="section"><a href="parallel_mode_using.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="parallel_mode_using.html#parallel_mode.using.prereq_flags">Prerequisite Compiler Flags</a></span></dt><dt><span class="section"><a href="parallel_mode_using.html#parallel_mode.using.parallel_mode">Using Parallel Mode</a></span></dt><dt><span class="section"><a href="parallel_mode_using.html#parallel_mode.using.specific">Using Specific Parallel Components</a></span></dt></dl></dd><dt><span class="section"><a href="parallel_mode_design.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.intro">Interface Basics</a></span></dt><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning">Configuration and Tuning</a></span></dt><dd><dl><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning.omp">Setting up the OpenMP Environment</a></span></dt><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning.compile">Compile Time Switches</a></span></dt><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.tuning.settings">Run Time Settings and Defaults</a></span></dt></dl></dd><dt><span class="section"><a href="parallel_mode_design.html#parallel_mode.design.impl">Implementation Namespaces</a></span></dt></dl></dd><dt><span class="section"><a href="parallel_mode_test.html">Testing</a></span></dt><dt><span class="bibliography"><a href="parallel_mode.html#parallel_mode.biblio">Bibliography</a></span></dt></dl></div><p> The libstdc++ parallel mode is an experimental parallel
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/parallel_mode_design.html gcc-6.5.0/libstdc++-v3/doc/html/manual/parallel_mode_design.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode_using.html" title="Using" /><link rel="next" href="parallel_mode_test.html" title="Testing" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode_using.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_test.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.design"></a>Design</h2></div></div></div><p>
    </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="parallel_mode.design.intro"></a>Interface Basics</h3></div></div></div><p>
  All parallel algorithms are intended to have signatures that are
  equivalent to the ISO C++ algorithms replaced. For instance, the
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode_using.html" title="Using" /><link rel="next" href="parallel_mode_test.html" title="Testing" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode_using.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_test.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.design"></a>Design</h2></div></div></div><p>
    </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="parallel_mode.design.intro"></a>Interface Basics</h3></div></div></div><p>
  All parallel algorithms are intended to have signatures that are
  equivalent to the ISO C++ algorithms replaced. For instance, the
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/parallel_mode_semantics.html gcc-6.5.0/libstdc++-v3/doc/html/manual/parallel_mode_semantics.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Semantics</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="next" href="parallel_mode_using.html" title="Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Semantics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_using.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.semantics"></a>Semantics</h2></div></div></div><p> The parallel mode STL algorithms are currently not exception-safe,
  i.e. user-defined functors must not throw exceptions.
  Also, the order of execution is not guaranteed for some functions, of course.
  Therefore, user-defined functors should not have any concurrent side effects.
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Semantics</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="next" href="parallel_mode_using.html" title="Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Semantics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_using.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.semantics"></a>Semantics</h2></div></div></div><p> The parallel mode STL algorithms are currently not exception-safe,
  i.e. user-defined functors must not throw exceptions.
  Also, the order of execution is not guaranteed for some functions, of course.
  Therefore, user-defined functors should not have any concurrent side effects.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/parallel_mode_test.html gcc-6.5.0/libstdc++-v3/doc/html/manual/parallel_mode_test.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Testing</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode_design.html" title="Design" /><link rel="next" href="profile_mode.html" title="Chapter 19. Profile Mode" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Testing</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode_design.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.test"></a>Testing</h2></div></div></div><p>
      Both the normal conformance and regression tests and the
      supplemental performance tests work.
    </p><p>
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Testing</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode_design.html" title="Design" /><link rel="next" href="profile_mode.html" title="Chapter 19. Profile Mode" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Testing</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode_design.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.test"></a>Testing</h2></div></div></div><p>
      Both the normal conformance and regression tests and the
      supplemental performance tests work.
    </p><p>
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    Any use of parallel functionality requires additional compiler
    and runtime support, in particular support for OpenMP. Adding this support is
    not difficult: just compile your application with the compiler
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Using</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, parallel" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="parallel_mode.html" title="Chapter 18. Parallel Mode" /><link rel="prev" href="parallel_mode_semantics.html" title="Semantics" /><link rel="next" href="parallel_mode_design.html" title="Design" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Using</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode_semantics.html">Prev</a> </td><th width="60%" align="center">Chapter 18. Parallel Mode</th><td width="20%" align="right"> <a accesskey="n" href="parallel_mode_design.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.parallel_mode.using"></a>Using</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="parallel_mode.using.prereq_flags"></a>Prerequisite Compiler Flags</h3></div></div></div><p>
    Any use of parallel functionality requires additional compiler
    and runtime support, in particular support for OpenMP. Adding this support is
    not difficult: just compile your application with the compiler
*************** Then compile this code with the prerequi
*** 63,66 ****
  flags for atomic operations.)
  </p><p> The following table provides the names and headers of all the
    parallel algorithms that can be used in a similar manner:
! </p><div class="table"><a id="table.parallel_algos"></a><p class="title"><strong>Table 18.1. Parallel Algorithms</strong></p><div class="table-contents"><table summary="Parallel Algorithms" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Algorithm</th><th align="left">Header</th><th align="left">Parallel algorithm</th><th align="left">Parallel header</th></tr></thead><tbody><tr><td align="left"><code class="function">std::accumulate</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::accumulate</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::adjacent_difference</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::adjacent_difference</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::inner_product</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::inner_product</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::partial_sum</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::partial_sum</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::adjacent_find</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::adjacent_find</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::count</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::count</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::count_if</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::count_if</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::equal</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::equal</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::find</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::find</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::find_if</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::find_if</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::find_first_of</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::find_first_of</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::for_each</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::for_each</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::generate</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::generate</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::generate_n</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::generate_n</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::lexicographical_compare</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::lexicographical_compare</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::mismatch</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::mismatch</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::search</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::search</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::search_n</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::search_n</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::transform</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::transform</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::replace</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::replace</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::replace_if</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::replace_if</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::max_element</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::max_element</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::merge</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::merge</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::min_element</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::min_element</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::nth_element</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::nth_element</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::partial_sort</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::partial_sort</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::partition</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::partition</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::random_shuffle</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::random_shuffle</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_union</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_union</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_intersection</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_intersection</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_symmetric_difference</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_symmetric_difference</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_difference</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_difference</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::sort</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::sort</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::stable_sort</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::stable_sort</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::unique_copy</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::unique_copy</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr></tbody></table></div></div><br class="table-break" /></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="parallel_mode_semantics.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="parallel_mode.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="parallel_mode_design.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Semantics </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Design</td></tr></table></div></body></html>
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--- 63,66 ----
  flags for atomic operations.)
  </p><p> The following table provides the names and headers of all the
    parallel algorithms that can be used in a similar manner:
! </p><div class="table"><a id="table.parallel_algos"></a><p class="title"><strong>Table 18.1. Parallel Algorithms</strong></p><div class="table-contents"><table class="table" summary="Parallel Algorithms" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Algorithm</th><th align="left">Header</th><th align="left">Parallel algorithm</th><th align="left">Parallel header</th></tr></thead><tbody><tr><td align="left"><code class="function">std::accumulate</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::accumulate</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::adjacent_difference</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::adjacent_difference</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::inner_product</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::inner_product</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::partial_sum</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="function">__gnu_parallel::partial_sum</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr><tr><td align="left"><code class="function">std::adjacent_find</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::adjacent_find</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::count</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::count</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::count_if</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::count_if</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::equal</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::equal</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::find</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::find</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::find_if</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::find_if</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::find_first_of</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::find_first_of</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::for_each</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::for_each</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::generate</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::generate</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::generate_n</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::generate_n</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::lexicographical_compare</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::lexicographical_compare</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::mismatch</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::mismatch</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::search</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::search</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::search_n</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::search_n</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::transform</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::transform</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::replace</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::replace</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::replace_if</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::replace_if</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::max_element</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::max_element</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::merge</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::merge</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::min_element</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::min_element</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::nth_element</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::nth_element</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::partial_sort</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::partial_sort</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::partition</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::partition</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::random_shuffle</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::random_shuffle</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_union</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_union</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_intersection</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_intersection</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_symmetric_difference</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_symmetric_difference</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::set_difference</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::set_difference</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::sort</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::sort</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::stable_sort</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::stable_sort</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr><tr><td align="left"><code class="function">std::unique_copy</code></td><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="function">__gnu_parallel::unique_copy</code></td><td align="left"><code class="filename">parallel/algorithm</code></td></tr></tbody></table></div></div><br class="table-break" /></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="parallel_mode_semantics.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="parallel_mode.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="parallel_mode_design.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Semantics </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Design</td></tr></table></div></body></html>
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_based_data_structures_test.html gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_based_data_structures_test.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_based_data_structures_test.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_based_data_structures_test.html	Wed Oct 25 14:16:26 2017
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  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Testing</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_data_structures_design.html" title="Design" /><link rel="next" href="policy_data_structures_ack.html" title="Acknowledgments" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Testing</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures_design.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="policy_data_structures_ack.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="pbds.test"></a>Testing</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="pbds.test.regression"></a>Regression</h3></div></div></div><p>The library contains a single comprehensive regression test.
      For a given container type in this library, the test creates
      an object of the container type and an object of the
      corresponding standard type (e.g., <code class="classname">std::set</code>). It
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Testing</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_data_structures_design.html" title="Design" /><link rel="next" href="policy_data_structures_ack.html" title="Acknowledgments" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Testing</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures_design.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="policy_data_structures_ack.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="pbds.test"></a>Testing</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="pbds.test.regression"></a>Regression</h3></div></div></div><p>The library contains a single comprehensive regression test.
      For a given container type in this library, the test creates
      an object of the container type and an object of the
      corresponding standard type (e.g., <code class="classname">std::set</code>). It
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*** 49,55 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_hash_text_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 49,55 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_hash_text_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 182,188 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_cc_hash_int_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 182,188 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_cc_hash_int_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 284,290 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_gp_hash_int_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 284,290 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_gp_hash_int_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 384,390 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_cc_hash_int_subscript_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 384,390 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_cc_hash_int_subscript_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 484,490 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_gp_hash_int_subscript_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 484,490 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_gp_hash_int_subscript_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 571,577 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_cc_hash_int_subscript_insert.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 571,577 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_cc_hash_int_subscript_insert.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 671,677 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_gp_hash_int_subscript_insert.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 671,677 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_gp_hash_int_subscript_insert.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 779,785 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_hash_zlob_int_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 779,785 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_hash_zlob_int_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 899,905 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_hash_int_erase_mem.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
--- 899,905 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_hash_int_erase_mem.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="5" align="left">
  		    n_hash_map_ncah
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_map</code>
***************
*** 1007,1013 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_insert_node.png" align="middle" /></div><p>
  	      The abbreviated names in the legend of the graphic above are
  	      instantiated with the types in the following table.
! 	    </p></div><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
--- 1007,1013 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_insert_node.png" align="middle" /></div><p>
  	      The abbreviated names in the legend of the graphic above are
  	      instantiated with the types in the following table.
! 	    </p></div><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
***************
*** 1040,1046 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_insert_vector.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
--- 1040,1046 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_insert_vector.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
***************
*** 1061,1067 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_insert_trie.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
--- 1061,1067 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_insert_trie.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
***************
*** 1117,1123 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
--- 1117,1123 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
***************
*** 1225,1231 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_lor_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
--- 1225,1231 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_text_lor_find.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_map
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::map</code>
***************
*** 1313,1319 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_split_join.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_set
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::set</code>
--- 1313,1319 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_split_join.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_set
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::set</code>
***************
*** 1416,1422 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_order_statistics.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_set
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::set</code>
--- 1416,1422 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_tree_order_statistics.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_set
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::set</code>
***************
*** 1489,1495 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_small_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
--- 1489,1495 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_small_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
***************
*** 1551,1557 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_small_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
--- 1551,1557 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_small_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
***************
*** 1660,1666 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
--- 1660,1666 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
***************
*** 1722,1728 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
--- 1722,1728 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
***************
*** 1834,1840 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_small_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
--- 1834,1840 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_small_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
***************
*** 1896,1902 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_small_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
--- 1896,1902 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_small_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
***************
*** 2008,2014 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_large_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
--- 2008,2014 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_large_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
***************
*** 2070,2076 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
--- 2070,2076 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
***************
*** 2177,2183 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_mem_small_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
--- 2177,2183 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_mem_small_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
***************
*** 2239,2245 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
--- 2239,2245 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
***************
*** 2346,2352 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_mem_large_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
--- 2346,2352 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_insert_mem_large_s2p_tree.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::multimap</code>
***************
*** 2408,2414 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
--- 2408,2414 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_multimap_text_find_large_s2p_hash.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="7" align="left">
  		    n_hash_mmap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::tr1::unordered_multimap</code>
***************
*** 2514,2520 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 2514,2520 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 2576,2582 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 2576,2582 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 2650,2656 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_push_pop.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 2650,2656 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_push_pop.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 2712,2718 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_push_pop.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code> adapting <code class="classname">std::vector</code>
--- 2712,2718 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_push_pop.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code> adapting <code class="classname">std::vector</code>
***************
*** 2779,2785 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_int_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 2779,2785 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_int_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 2841,2847 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_binary_priority_queue_int_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code> adapting <code class="classname">std::vector</code>
--- 2841,2847 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_binary_priority_queue_int_push.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code> adapting <code class="classname">std::vector</code>
***************
*** 2896,2902 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_int_push_pop.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 2896,2902 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_int_push_pop.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 2996,3002 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_pop_mem.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 2996,3002 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_pop_mem.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 3089,3095 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_join.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 3089,3095 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_join.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 3188,3194 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_modify_up.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 3188,3194 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_modify_up.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 3250,3256 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_modify_up_thin.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    thin_heap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">priority_queue</code>
--- 3250,3256 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_modify_up_thin.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    thin_heap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">priority_queue</code>
***************
*** 3321,3327 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_modify_down.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
--- 3321,3327 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_priority_queue_text_modify_down.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    n_pq_vector
  		  </td></tr><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
***************
*** 3383,3389 ****
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_modify_down_thin.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    thin_heap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">priority_queue</code>
--- 3383,3389 ----
  	  </p><div class="informalfigure"><div class="mediaobject" align="center"><img src="../images/pbds_pairing_priority_queue_text_modify_down_thin.png" align="middle" /></div></div><p>
  	    The abbreviated names in the legend of the graphic above are
  	    instantiated with the types in the following table.
! 	  </p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /></colgroup><thead><tr><th align="left"><span class="emphasis"><em>Name/Instantiating Type</em></span></th><th align="left"><span class="emphasis"><em>Parameter</em></span></th><th align="left"><span class="emphasis"><em>Details</em></span></th></tr></thead><tbody><tr bgcolor="#B0B0B0"><td colspan="3" align="left">
  		    thin_heap
  		  </td></tr><tr><td align="left">
  		    <code class="classname">priority_queue</code>
***************
*** 3588,3594 ****
  	  underlying data structures in terms of orders of growth. It is
  	  interesting to note that this table implies something about the
  	  constants of the operations as well (see Amortized <code class="function">push</code>
! 	  and <code class="function">pop</code> operations).</p><div class="informaltable"><table border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /></colgroup><thead><tr><th align="left"> </th><th align="left"><span class="emphasis"><em><code class="function">push</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">pop</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">modify</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">erase</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">join</code></em></span></th></tr></thead><tbody><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
  		  </td><td align="left">
  		    Θ(n) worst
--- 3588,3594 ----
  	  underlying data structures in terms of orders of growth. It is
  	  interesting to note that this table implies something about the
  	  constants of the operations as well (see Amortized <code class="function">push</code>
! 	  and <code class="function">pop</code> operations).</p><div class="informaltable"><table class="informaltable" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /></colgroup><thead><tr><th align="left"> </th><th align="left"><span class="emphasis"><em><code class="function">push</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">pop</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">modify</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">erase</code></em></span></th><th align="left"><span class="emphasis"><em><code class="function">join</code></em></span></th></tr></thead><tbody><tr><td align="left">
  		    <code class="classname">std::priority_queue</code>
  		  </td><td align="left">
  		    Θ(n) worst
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_data_structures.html gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_data_structures.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_data_structures.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_data_structures.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 22. Policy-Based Data Structures</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="bitmap_allocator_impl.html" title="Implementation" /><link rel="next" href="policy_data_structures_using.html" title="Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 22. Policy-Based Data Structures</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bitmap_allocator_impl.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="policy_data_structures_using.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.containers.pbds"></a>Chapter 22. Policy-Based Data Structures</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="policy_data_structures.html#pbds.intro">Intro</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.issues">Performance Issues</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.issues.associative">Associative</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.issues.priority_queue">Priority Que</a></span></dt></dl></dd><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.motivation">Goals</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.motivation.associative">Associative</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.policy">Policy Choices</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.underlying">Underlying Data Structures</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.iterators">Iterators</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.functions">Functional</a></span></dt></dl></dd><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.motivation.priority_queue">Priority Queues</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#motivation.priority_queue.policy">Policy Choices</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.priority_queue.underlying">Underlying Data Structures</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.priority_queue.binary_heap">Binary Heaps</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="policy_data_structures_using.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.organization">Organization</a></span></dt><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.tutorial">Tutorial</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.tutorial.basic">Basic Use</a></span></dt><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.tutorial.configuring">
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 22. Policy-Based Data Structures</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="bitmap_allocator_impl.html" title="Implementation" /><link rel="next" href="policy_data_structures_using.html" title="Using" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 22. Policy-Based Data Structures</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bitmap_allocator_impl.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="policy_data_structures_using.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.containers.pbds"></a>Chapter 22. Policy-Based Data Structures</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="policy_data_structures.html#pbds.intro">Intro</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.issues">Performance Issues</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.issues.associative">Associative</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.issues.priority_queue">Priority Que</a></span></dt></dl></dd><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.motivation">Goals</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.motivation.associative">Associative</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.policy">Policy Choices</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.underlying">Underlying Data Structures</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.iterators">Iterators</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.associative.functions">Functional</a></span></dt></dl></dd><dt><span class="section"><a href="policy_data_structures.html#pbds.intro.motivation.priority_queue">Priority Queues</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures.html#motivation.priority_queue.policy">Policy Choices</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.priority_queue.underlying">Underlying Data Structures</a></span></dt><dt><span class="section"><a href="policy_data_structures.html#motivation.priority_queue.binary_heap">Binary Heaps</a></span></dt></dl></dd></dl></dd></dl></dd><dt><span class="section"><a href="policy_data_structures_using.html">Using</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.organization">Organization</a></span></dt><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.tutorial">Tutorial</a></span></dt><dd><dl><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.tutorial.basic">Basic Use</a></span></dt><dt><span class="section"><a href="policy_data_structures_using.html#pbds.using.tutorial.configuring">
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_data_structures_ack.html gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_data_structures_ack.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_data_structures_ack.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_data_structures_ack.html	Wed Oct 25 14:16:26 2017
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Acknowledgments</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_based_data_structures_test.html" title="Testing" /><link rel="next" href="ext_containers.html" title="Chapter 23. HP/SGI Extensions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Acknowledgments</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_based_data_structures_test.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="ext_containers.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="pbds.ack"></a>Acknowledgments</h2></div></div></div><p>
        Written by Ami Tavory and Vladimir Dreizin (IBM Haifa Research
        Laboratories), and Benjamin Kosnik (Red Hat).
      </p><p>
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Acknowledgments</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_based_data_structures_test.html" title="Testing" /><link rel="next" href="ext_containers.html" title="Chapter 23. HP/SGI Extensions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Acknowledgments</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_based_data_structures_test.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="ext_containers.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="pbds.ack"></a>Acknowledgments</h2></div></div></div><p>
        Written by Ami Tavory and Vladimir Dreizin (IBM Haifa Research
        Laboratories), and Benjamin Kosnik (Red Hat).
      </p><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_data_structures_design.html gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_data_structures_design.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_data_structures_using.html" title="Using" /><link rel="next" href="policy_based_data_structures_test.html" title="Testing" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures_using.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="policy_based_data_structures_test.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="containers.pbds.design"></a>Design</h2></div></div></div><p></p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="pbds.design.concepts"></a>Concepts</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="pbds.design.concepts.null_type"></a>Null Policy Classes</h4></div></div></div><p>
  	Associative containers are typically parametrized by various
  	policies. For example, a hash-based associative container is
  	parametrized by a hash-functor, transforming each key into an
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_data_structures_using.html" title="Using" /><link rel="next" href="policy_based_data_structures_test.html" title="Testing" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures_using.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="policy_based_data_structures_test.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="containers.pbds.design"></a>Design</h2></div></div></div><p></p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="pbds.design.concepts"></a>Concepts</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="pbds.design.concepts.null_type"></a>Null Policy Classes</h4></div></div></div><p>
  	Associative containers are typically parametrized by various
  	policies. For example, a hash-based associative container is
  	parametrized by a hash-functor, transforming each key into an
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/policy_data_structures_using.html gcc-6.5.0/libstdc++-v3/doc/html/manual/policy_data_structures_using.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Using</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, policy, container, data, structure, associated, tree, trie, hash, metaprogramming" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="prev" href="policy_data_structures.html" title="Chapter 22. Policy-Based Data Structures" /><link rel="next" href="policy_data_structures_design.html" title="Design" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Using</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="policy_data_structures.html">Prev</a> </td><th width="60%" align="center">Chapter 22. Policy-Based Data Structures</th><td width="20%" align="right"> <a accesskey="n" href="policy_data_structures_design.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="containers.pbds.using"></a>Using</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="pbds.using.prereq"></a>Prerequisites</h3></div></div></div><p>The library contains only header files, and does not require any
        other libraries except the standard C++ library . All classes are
        defined in namespace <code class="code">__gnu_pbds</code>. The library internally
        uses macros beginning with <code class="code">PB_DS</code>, but
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        other libraries except the standard C++ library . All classes are
        defined in namespace <code class="code">__gnu_pbds</code>. The library internally
        uses macros beginning with <code class="code">PB_DS</code>, but
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode.html
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 19. Profile Mode</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="extensions.html" title="Part III.  Extensions" /><link rel="prev" href="parallel_mode_test.html" title="Testing" /><link rel="next" href="profile_mode_design.html" title="Design" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 19. Profile Mode</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="parallel_mode_test.html">Prev</a> </td><th width="60%" align="center">Part III. 
    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_design.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.profile_mode"></a>Chapter 19. Profile Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="profile_mode.html#manual.ext.profile_mode.intro">Intro</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode.html#manual.ext.profile_mode.using">Using the Profile Mode</a></span></dt><dt><span class="section"><a href="profile_mode.html#manual.ext.profile_mode.tuning">Tuning the Profile Mode</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_design.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.wrapper">Wrapper Model</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.instrumentation">Instrumentation</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.rtlib">Run Time Behavior</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.analysis">Analysis and Diagnostics</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.cost-model">Cost Model</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.reports">Reports</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.testing">Testing</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_api.html">Extensions for Custom Containers</a></span></dt><dt><span class="section"><a href="profile_mode_cost_model.html">Empirical Cost Model</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html">Implementation Issues</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.stack">Stack Traces</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.symbols">Symbolization of Instruction Addresses</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.concurrency">Concurrency</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.stdlib-in-proflib">Using the Standard Library in the Instrumentation Implementation</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.malloc-hooks">Malloc Hooks</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.construction-destruction">Construction and Destruction of Global Objects</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_devel.html">Developer Information</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_devel.html#manual.ext.profile_mode.developer.bigpic">Big Picture</a></span></dt><dt><span class="section"><a href="profile_mode_devel.html#manual.ext.profile_mode.developer.howto">How To Add A Diagnostic</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html">Diagnostics</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.template">Diagnostic Template</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.containers">Containers</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_small">Hashtable Too Small</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_large">Hashtable Too Large</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.inefficient_hash">Inefficient Hash</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_too_small">Vector Too Small</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_too_large">Vector Too Large</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_to_hashtable">Vector to Hashtable</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_to_vector">Hashtable to Vector</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_to_list">Vector to List</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.list_to_vector">List to Vector</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.list_to_slist">List to Forward List (Slist)</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.assoc_ord_to_unord">Ordered to Unordered Associative Container</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.algorithms">Algorithms</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.algorithms.sort">Sort Algorithm Performance</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.locality">Data Locality</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.locality.sw_prefetch">Need Software Prefetch</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.locality.linked">Linked Structure Locality</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.mthread">Multithreaded Data Access</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.mthread.ddtest">Data Dependence Violations at Container Level</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.mthread.false_share">False Sharing</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.statistics">Statistics</a></span></dt></dl></dd><dt><span class="bibliography"><a href="profile_mode.html#profile_mode.biblio">Bibliography</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.intro"></a>Intro</h2></div></div></div><p>
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    Extensions
    
  </th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_design.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.profile_mode"></a>Chapter 19. Profile Mode</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="profile_mode.html#manual.ext.profile_mode.intro">Intro</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode.html#manual.ext.profile_mode.using">Using the Profile Mode</a></span></dt><dt><span class="section"><a href="profile_mode.html#manual.ext.profile_mode.tuning">Tuning the Profile Mode</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_design.html">Design</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.wrapper">Wrapper Model</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.instrumentation">Instrumentation</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.rtlib">Run Time Behavior</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.analysis">Analysis and Diagnostics</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.cost-model">Cost Model</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.reports">Reports</a></span></dt><dt><span class="section"><a href="profile_mode_design.html#manual.ext.profile_mode.design.testing">Testing</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_api.html">Extensions for Custom Containers</a></span></dt><dt><span class="section"><a href="profile_mode_cost_model.html">Empirical Cost Model</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html">Implementation Issues</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.stack">Stack Traces</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.symbols">Symbolization of Instruction Addresses</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.concurrency">Concurrency</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.stdlib-in-proflib">Using the Standard Library in the Instrumentation Implementation</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.malloc-hooks">Malloc Hooks</a></span></dt><dt><span class="section"><a href="profile_mode_impl.html#manual.ext.profile_mode.implementation.construction-destruction">Construction and Destruction of Global Objects</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_devel.html">Developer Information</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_devel.html#manual.ext.profile_mode.developer.bigpic">Big Picture</a></span></dt><dt><span class="section"><a href="profile_mode_devel.html#manual.ext.profile_mode.developer.howto">How To Add A Diagnostic</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html">Diagnostics</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.template">Diagnostic Template</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.containers">Containers</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_small">Hashtable Too Small</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_large">Hashtable Too Large</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.inefficient_hash">Inefficient Hash</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_too_small">Vector Too Small</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_too_large">Vector Too Large</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_to_hashtable">Vector to Hashtable</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_to_vector">Hashtable to Vector</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.vector_to_list">Vector to List</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.list_to_vector">List to Vector</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.list_to_slist">List to Forward List (Slist)</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.assoc_ord_to_unord">Ordered to Unordered Associative Container</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.algorithms">Algorithms</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.algorithms.sort">Sort Algorithm Performance</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.locality">Data Locality</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.locality.sw_prefetch">Need Software Prefetch</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.locality.linked">Linked Structure Locality</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.mthread">Multithreaded Data Access</a></span></dt><dd><dl><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.mthread.ddtest">Data Dependence Violations at Container Level</a></span></dt><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.mthread.false_share">False Sharing</a></span></dt></dl></dd><dt><span class="section"><a href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.statistics">Statistics</a></span></dt></dl></dd><dt><span class="bibliography"><a href="profile_mode.html#profile_mode.biblio">Bibliography</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.intro"></a>Intro</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_api.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_api.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_api.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_api.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Extensions for Custom Containers</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_design.html" title="Design" /><link rel="next" href="profile_mode_cost_model.html" title="Empirical Cost Model" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Extensions for Custom Containers</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_design.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_cost_model.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.api"></a>Extensions for Custom Containers</h2></div></div></div><p>
    Many large projects use their own data structures instead of the ones in the
    standard library.  If these data structures are similar in functionality
    to the standard library, they can be instrumented with the same hooks
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Extensions for Custom Containers</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_design.html" title="Design" /><link rel="next" href="profile_mode_cost_model.html" title="Empirical Cost Model" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Extensions for Custom Containers</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_design.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_cost_model.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.api"></a>Extensions for Custom Containers</h2></div></div></div><p>
    Many large projects use their own data structures instead of the ones in the
    standard library.  If these data structures are similar in functionality
    to the standard library, they can be instrumented with the same hooks
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_cost_model.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_cost_model.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_cost_model.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_cost_model.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Empirical Cost Model</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_api.html" title="Extensions for Custom Containers" /><link rel="next" href="profile_mode_impl.html" title="Implementation Issues" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Empirical Cost Model</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_api.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_impl.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.cost_model"></a>Empirical Cost Model</h2></div></div></div><p>
    Currently, the cost model uses formulas with predefined relative weights
    for alternative containers or container implementations.  For instance,
    iterating through a vector is X times faster than iterating through a list.
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Empirical Cost Model</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_api.html" title="Extensions for Custom Containers" /><link rel="next" href="profile_mode_impl.html" title="Implementation Issues" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Empirical Cost Model</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_api.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_impl.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.cost_model"></a>Empirical Cost Model</h2></div></div></div><p>
    Currently, the cost model uses formulas with predefined relative weights
    for alternative containers or container implementations.  For instance,
    iterating through a vector is X times faster than iterating through a list.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_design.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_design.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_design.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_design.html	Wed Oct 25 14:16:26 2017
***************
*** 1,6 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="next" href="profile_mode_api.html" title="Extensions for Custom Containers" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_api.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.design"></a>Design</h2></div></div></div><p>
! </p><div class="table"><a id="table.profile_code_loc"></a><p class="title"><strong>Table 19.1. Profile Code Location</strong></p><div class="table-contents"><table summary="Profile Code Location" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Code Location</th><th align="left">Use</th></tr></thead><tbody><tr><td align="left"><code class="code">libstdc++-v3/include/std/*</code></td><td align="left">Preprocessor code to redirect to profile extension headers.</td></tr><tr><td align="left"><code class="code">libstdc++-v3/include/profile/*</code></td><td align="left">Profile extension public headers (map, vector, ...).</td></tr><tr><td align="left"><code class="code">libstdc++-v3/include/profile/impl/*</code></td><td align="left">Profile extension internals.  Implementation files are
       only included from <code class="code">impl/profiler.h</code>, which is the only
       file included from the public headers.</td></tr></tbody></table></div></div><br class="table-break" /><p>
  </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.profile_mode.design.wrapper"></a>Wrapper Model</h3></div></div></div><p>
--- 1,6 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="next" href="profile_mode_api.html" title="Extensions for Custom Containers" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_api.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.design"></a>Design</h2></div></div></div><p>
! </p><div class="table"><a id="table.profile_code_loc"></a><p class="title"><strong>Table 19.1. Profile Code Location</strong></p><div class="table-contents"><table class="table" summary="Profile Code Location" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Code Location</th><th align="left">Use</th></tr></thead><tbody><tr><td align="left"><code class="code">libstdc++-v3/include/std/*</code></td><td align="left">Preprocessor code to redirect to profile extension headers.</td></tr><tr><td align="left"><code class="code">libstdc++-v3/include/profile/*</code></td><td align="left">Profile extension public headers (map, vector, ...).</td></tr><tr><td align="left"><code class="code">libstdc++-v3/include/profile/impl/*</code></td><td align="left">Profile extension internals.  Implementation files are
       only included from <code class="code">impl/profiler.h</code>, which is the only
       file included from the public headers.</td></tr></tbody></table></div></div><br class="table-break" /><p>
  </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.profile_mode.design.wrapper"></a>Wrapper Model</h3></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_devel.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_devel.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_devel.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_devel.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Developer Information</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_impl.html" title="Implementation Issues" /><link rel="next" href="profile_mode_diagnostics.html" title="Diagnostics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Developer Information</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_impl.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_diagnostics.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.developer"></a>Developer Information</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.profile_mode.developer.bigpic"></a>Big Picture</h3></div></div></div><p>The profile mode headers are included with
     <code class="code">-D_GLIBCXX_PROFILE</code> through preprocessor directives in
     <code class="code">include/std/*</code>.
    </p><p>Instrumented implementations are provided in
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Developer Information</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_impl.html" title="Implementation Issues" /><link rel="next" href="profile_mode_diagnostics.html" title="Diagnostics" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Developer Information</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_impl.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_diagnostics.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.developer"></a>Developer Information</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.profile_mode.developer.bigpic"></a>Big Picture</h3></div></div></div><p>The profile mode headers are included with
     <code class="code">-D_GLIBCXX_PROFILE</code> through preprocessor directives in
     <code class="code">include/std/*</code>.
    </p><p>Instrumented implementations are provided in
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_diagnostics.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_diagnostics.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_diagnostics.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_diagnostics.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Diagnostics</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_devel.html" title="Developer Information" /><link rel="next" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Diagnostics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_devel.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.diagnostics"></a>Diagnostics</h2></div></div></div><p>
    The table below presents all the diagnostics we intend to implement.
    Each diagnostic has a corresponding compile time switch
    <code class="code">-D_GLIBCXX_PROFILE_&lt;diagnostic&gt;</code>.
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Diagnostics</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_devel.html" title="Developer Information" /><link rel="next" href="mt_allocator.html" title="Chapter 20. The mt_allocator" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Diagnostics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_devel.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.diagnostics"></a>Diagnostics</h2></div></div></div><p>
    The table below presents all the diagnostics we intend to implement.
    Each diagnostic has a corresponding compile time switch
    <code class="code">-D_GLIBCXX_PROFILE_&lt;diagnostic&gt;</code>.
***************
*** 17,23 ****
    A high accuracy means that the diagnostic is unlikely to be wrong.
    These grades are not perfect.  They are just meant to guide users with
    specific needs or time budgets.
!   </p><div class="table"><a id="table.profile_diagnostics"></a><p class="title"><strong>Table 19.2. Profile Diagnostics</strong></p><div class="table-contents"><table summary="Profile Diagnostics" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left">Group</th><th align="left">Flag</th><th align="left">Benefit</th><th align="left">Cost</th><th align="left">Freq.</th><th align="left">Implemented</th><td class="auto-generated"> </td></tr></thead><tbody><tr><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.containers" title="Containers">
      CONTAINERS</a></td><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_small" title="Hashtable Too Small">
      HASHTABLE_TOO_SMALL</a></td><td align="left">10</td><td align="left">1</td><td align="left"> </td><td align="left">10</td><td align="left">yes</td></tr><tr><td align="left"> </td><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_large" title="Hashtable Too Large">
      HASHTABLE_TOO_LARGE</a></td><td align="left">5</td><td align="left">1</td><td align="left"> </td><td align="left">10</td><td align="left">yes</td></tr><tr><td align="left"> </td><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.inefficient_hash" title="Inefficient Hash">
--- 17,23 ----
    A high accuracy means that the diagnostic is unlikely to be wrong.
    These grades are not perfect.  They are just meant to guide users with
    specific needs or time budgets.
!   </p><div class="table"><a id="table.profile_diagnostics"></a><p class="title"><strong>Table 19.2. Profile Diagnostics</strong></p><div class="table-contents"><table class="table" summary="Profile Diagnostics" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /><col align="left" class="c6" /><col align="left" class="c7" /></colgroup><thead><tr><th align="left">Group</th><th align="left">Flag</th><th align="left">Benefit</th><th align="left">Cost</th><th align="left">Freq.</th><th align="left">Implemented</th><td class="auto-generated"> </td></tr></thead><tbody><tr><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.containers" title="Containers">
      CONTAINERS</a></td><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_small" title="Hashtable Too Small">
      HASHTABLE_TOO_SMALL</a></td><td align="left">10</td><td align="left">1</td><td align="left"> </td><td align="left">10</td><td align="left">yes</td></tr><tr><td align="left"> </td><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.hashtable_too_large" title="Hashtable Too Large">
      HASHTABLE_TOO_LARGE</a></td><td align="left">5</td><td align="left">1</td><td align="left"> </td><td align="left">10</td><td align="left">yes</td></tr><tr><td align="left"> </td><td align="left"><a class="link" href="profile_mode_diagnostics.html#manual.ext.profile_mode.analysis.inefficient_hash" title="Inefficient Hash">
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_impl.html gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_impl.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/profile_mode_impl.html	Tue Apr  2 00:09:44 2013
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/profile_mode_impl.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Implementation Issues</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_cost_model.html" title="Empirical Cost Model" /><link rel="next" href="profile_mode_devel.html" title="Developer Information" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Implementation Issues</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_cost_model.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_devel.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.implementation"></a>Implementation Issues</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.profile_mode.implementation.stack"></a>Stack Traces</h3></div></div></div><p>
    Accurate stack traces are needed during profiling since we group events by
    call context and dynamic instance.  Without accurate traces, diagnostics
    may be hard to interpret.  For instance, when giving advice to the user
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Implementation Issues</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, library, profile" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="profile_mode.html" title="Chapter 19. Profile Mode" /><link rel="prev" href="profile_mode_cost_model.html" title="Empirical Cost Model" /><link rel="next" href="profile_mode_devel.html" title="Developer Information" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Implementation Issues</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="profile_mode_cost_model.html">Prev</a> </td><th width="60%" align="center">Chapter 19. Profile Mode</th><td width="20%" align="right"> <a accesskey="n" href="profile_mode_devel.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.ext.profile_mode.implementation"></a>Implementation Issues</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.ext.profile_mode.implementation.stack"></a>Stack Traces</h3></div></div></div><p>
    Accurate stack traces are needed during profiling since we group events by
    call context and dynamic instance.  Without accurate traces, diagnostics
    may be hard to interpret.  For instance, when giving advice to the user
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/setup.html gcc-6.5.0/libstdc++-v3/doc/html/manual/setup.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/setup.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/setup.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 2. Setup</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="intro.html" title="Part I.  Introduction" /><link rel="prev" href="bugs.html" title="Bugs" /><link rel="next" href="configure.html" title="Configure" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 2. Setup</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bugs.html">Prev</a> </td><th width="60%" align="center">Part I. 
    Introduction
    
  </th><td width="20%" align="right"> <a accesskey="n" href="configure.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.setup"></a>Chapter 2. Setup</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="configure.html">Configure</a></span></dt><dt><span class="section"><a href="make.html">Make</a></span></dt></dl></div><p>To transform libstdc++ sources into installed include files
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 2. Setup</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="intro.html" title="Part I.  Introduction" /><link rel="prev" href="bugs.html" title="Bugs" /><link rel="next" href="configure.html" title="Configure" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 2. Setup</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bugs.html">Prev</a> </td><th width="60%" align="center">Part I. 
    Introduction
    
  </th><td width="20%" align="right"> <a accesskey="n" href="configure.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.setup"></a>Chapter 2. Setup</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="setup.html#manual.intro.setup.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="configure.html">Configure</a></span></dt><dt><span class="section"><a href="make.html">Make</a></span></dt></dl></div><p>To transform libstdc++ sources into installed include files
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/source_code_style.html gcc-6.5.0/libstdc++-v3/doc/html/manual/source_code_style.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/source_code_style.html	Fri Jun 16 12:41:51 2017
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/source_code_style.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Coding Style</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="prev" href="source_organization.html" title="Directory Layout and Source Conventions" /><link rel="next" href="source_design_notes.html" title="Design Notes" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Coding Style</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="source_organization.html">Prev</a> </td><th width="60%" align="center">Appendix A. 
    Contributing
    
  </th><td width="20%" align="right"> <a accesskey="n" href="source_design_notes.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="contrib.coding_style"></a>Coding Style</h2></div></div></div><p>
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Coding Style</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="prev" href="source_organization.html" title="Directory Layout and Source Conventions" /><link rel="next" href="source_design_notes.html" title="Design Notes" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Coding Style</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="source_organization.html">Prev</a> </td><th width="60%" align="center">Appendix A. 
    Contributing
    
  </th><td width="20%" align="right"> <a accesskey="n" href="source_design_notes.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="contrib.coding_style"></a>Coding Style</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/source_design_notes.html gcc-6.5.0/libstdc++-v3/doc/html/manual/source_design_notes.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/source_design_notes.html	Thu Mar 27 18:22:46 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/source_design_notes.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design Notes</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="prev" href="source_code_style.html" title="Coding Style" /><link rel="next" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design Notes</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="source_code_style.html">Prev</a> </td><th width="60%" align="center">Appendix A. 
    Contributing
    
  </th><td width="20%" align="right"> <a accesskey="n" href="appendix_porting.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="contrib.design_notes"></a>Design Notes</h2></div></div></div><p>
--- 1,5 ----
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Design Notes</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="prev" href="source_code_style.html" title="Coding Style" /><link rel="next" href="appendix_porting.html" title="Appendix B.  Porting and Maintenance" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Design Notes</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="source_code_style.html">Prev</a> </td><th width="60%" align="center">Appendix A. 
    Contributing
    
  </th><td width="20%" align="right"> <a accesskey="n" href="appendix_porting.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="contrib.design_notes"></a>Design Notes</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/source_organization.html gcc-6.5.0/libstdc++-v3/doc/html/manual/source_organization.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/source_organization.html	Fri Jun 16 12:41:51 2017
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/source_organization.html	Wed Oct 25 14:16:26 2017
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*** 1,5 ****
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Directory Layout and Source Conventions</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="prev" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="next" href="source_code_style.html" title="Coding Style" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Directory Layout and Source Conventions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="appendix_contributing.html">Prev</a> </td><th width="60%" align="center">Appendix A. 
    Contributing
    
  </th><td width="20%" align="right"> <a accesskey="n" href="source_code_style.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="contrib.organization"></a>Directory Layout and Source Conventions</h2></div></div></div><p>
--- 1,5 ----
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Directory Layout and Source Conventions</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="prev" href="appendix_contributing.html" title="Appendix A.  Contributing" /><link rel="next" href="source_code_style.html" title="Coding Style" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Directory Layout and Source Conventions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="appendix_contributing.html">Prev</a> </td><th width="60%" align="center">Appendix A. 
    Contributing
    
  </th><td width="20%" align="right"> <a accesskey="n" href="source_code_style.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="contrib.organization"></a>Directory Layout and Source Conventions</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/status.html gcc-6.5.0/libstdc++-v3/doc/html/manual/status.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/status.html	Thu May 18 14:35:12 2017
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/status.html	Fri Oct 12 11:37:51 2018
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 1. Status</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="intro.html" title="Part I.  Introduction" /><link rel="prev" href="intro.html" title="Part I.  Introduction" /><link rel="next" href="license.html" title="License" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 1. Status</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="intro.html">Prev</a> </td><th width="60%" align="center">Part I. 
    Introduction
    
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  This status table is based on the table of contents of ISO/IEC 14882:2003.
  </p><p>
! This page describes the C++ support in mainline GCC SVN, not in any
! particular release.
! </p><div class="table"><a id="table.cxx98_status"></a><p class="title"><strong>Table 1.1. C++ 1998/2003 Implementation Status</strong></p><div class="table-contents"><table summary="C++ 1998/2003 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<span class="emphasis"><em>18</em></span>
        </td><td colspan="3" align="left">
  	<span class="emphasis"><em>Language support</em></span>
--- 1,12 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 1. Status</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="intro.html" title="Part I.  Introduction" /><link rel="prev" href="intro.html" title="Part I.  Introduction" /><link rel="next" href="license.html" title="License" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 1. Status</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="intro.html">Prev</a> </td><th width="60%" align="center">Part I. 
    Introduction
    
  </th><td width="20%" align="right"> <a accesskey="n" href="license.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.status"></a>Chapter 1. Status</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="status.html#manual.intro.status.iso">Implementation Status</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#status.iso.1998">C++ 1998/2003</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.1998.status">Implementation Status</a></span></dt><dt><span class="section"><a href="status.html#iso.1998.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2011">C++ 2011</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.2011.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.2014">C++ 2014</a></span></dt><dt><span class="section"><a href="status.html#status.iso.201z">C++ 201z</a></span></dt><dt><span class="section"><a href="status.html#status.iso.tr1">C++ TR1</a></span></dt><dd><dl><dt><span class="section"><a href="status.html#iso.tr1.specific">Implementation Specific Behavior</a></span></dt></dl></dd><dt><span class="section"><a href="status.html#status.iso.tr24733">C++ TR 24733</a></span></dt></dl></dd><dt><span class="section"><a href="license.html">License</a></span></dt><dd><dl><dt><span class="section"><a href="license.html#manual.intro.status.license.gpl">The Code: GPL</a></span></dt><dt><span class="section"><a href="license.html#manual.intro.status.license.fdl">The Documentation: GPL, FDL</a></span></dt></dl></dd><dt><span class="section"><a href="bugs.html">Bugs</a></span></dt><dd><dl><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.impl">Implementation Bugs</a></span></dt><dt><span class="section"><a href="bugs.html#manual.intro.status.bugs.iso">Standard Bugs</a></span></dt></dl></dd></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.status.iso"></a>Implementation Status</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="status.iso.1998"></a>C++ 1998/2003</h3></div></div></div><div class="section"><div class="titlepage"><div><div><h4 class="title"><a id="iso.1998.status"></a>Implementation Status</h4></div></div></div><p>
  This status table is based on the table of contents of ISO/IEC 14882:2003.
  </p><p>
! This page describes the C++ support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx98_status"></a><p class="title"><strong>Table 1.1. C++ 1998/2003 Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ 1998/2003 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<span class="emphasis"><em>18</em></span>
        </td><td colspan="3" align="left">
  	<span class="emphasis"><em>Language support</em></span>
*************** particular release.
*** 122,127 ****
--- 121,129 ----
     </p><p><span class="emphasis"><em>[22.*]</em></span> Anything and everything we have on locale
        implementation will be described under
        <a class="link" href="localization.html#std.localization.locales.locale" title="locale">Localization</a>.
+    </p><p><span class="emphasis"><em>[23.*]</em></span> All of the containers in this clause
+      define <span class="type">size_type</span> as <span class="type">std::size_t</span> and
+      <span class="type">difference_type</span> as <span class="type">std::ptrdiff_t</span>.
     </p><p><span class="emphasis"><em>[26.2.8]/9</em></span> I have no idea what
        <code class="code">complex&lt;T&gt;</code>'s <code class="code">pow(0,0)</code> returns.
     </p><p><span class="emphasis"><em>[27.4.2.4]/2</em></span> Calling
*************** options. The pre-defined symbol
*** 157,163 ****
  presence of the required flag.
  </p><p>
  This page describes the C++11 support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx11_status"></a><p class="title"><strong>Table 1.2. C++ 2011 Implementation Status</strong></p><div class="table-contents"><table summary="C++ 2011 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<span class="emphasis"><em>18</em></span>
        </td><td colspan="3" align="left">
  	<span class="emphasis"><em>Language support</em></span>
--- 159,165 ----
  presence of the required flag.
  </p><p>
  This page describes the C++11 support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx11_status"></a><p class="title"><strong>Table 1.2. C++ 2011 Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ 2011 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<span class="emphasis"><em>18</em></span>
        </td><td colspan="3" align="left">
  	<span class="emphasis"><em>Language support</em></span>
*************** options. The pre-defined symbol
*** 333,339 ****
  presence of the required flag.
  </p><p>
  This page describes the C++14 and library TS support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx14_status"></a><p class="title"><strong>Table 1.3. C++ 2014 Implementation Status</strong></p><div class="table-contents"><table summary="C++ 2014 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2013/n3669.pdf" target="_top">
  	  N3669
  	</a>
--- 335,341 ----
  presence of the required flag.
  </p><p>
  This page describes the C++14 and library TS support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx14_status"></a><p class="title"><strong>Table 1.3. C++ 2014 Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ 2014 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2013/n3669.pdf" target="_top">
  	  N3669
  	</a>
*************** This page describes the C++14 and librar
*** 405,411 ****
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2013/n3644.pdf" target="_top">
  	  N3644
  	</a>
!       </td><td align="left">Null Forward Iterators</td><td align="left">Partial</td><td align="left">Only affects Debug Mode</td></tr></tbody></table></div></div><br class="table-break" /><div class="table"><a id="table.ts_status"></a><p class="title"><strong>Table 1.4. C++ Technical Specifications Implementation Status</strong></p><div class="table-contents"><table summary="C++ Technical Specifications Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr bgcolor="#C8B0B0"><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2013/n3662.html" target="_top">
  	  N3662
  	</a>
--- 407,413 ----
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2013/n3644.pdf" target="_top">
  	  N3644
  	</a>
!       </td><td align="left">Null Forward Iterators</td><td align="left">Partial</td><td align="left">Only affects Debug Mode</td></tr></tbody></table></div></div><br class="table-break" /><div class="table"><a id="table.ts_status"></a><p class="title"><strong>Table 1.4. C++ Technical Specifications Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ Technical Specifications Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr bgcolor="#C8B0B0"><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2013/n3662.html" target="_top">
  	  N3662
  	</a>
*************** options. The pre-defined symbol
*** 467,473 ****
  presence of the required flag.
  </p><p>
  This page describes the C++1z and library TS support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx1z_status"></a><p class="title"><strong>Table 1.5. C++ 201z Implementation Status</strong></p><div class="table-contents"><table summary="C++ 201z Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2014/n4259.pdf" target="_top">
  	  N4259
  	</a>
--- 469,475 ----
  presence of the required flag.
  </p><p>
  This page describes the C++1z and library TS support in the GCC 6 series.
! </p><div class="table"><a id="table.cxx1z_status"></a><p class="title"><strong>Table 1.5. C++ 201z Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ 201z Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/sc22/WG21/docs/papers/2014/n4259.pdf" target="_top">
  	  N4259
  	</a>
*************** This page describes the C++1z and librar
*** 540,546 ****
  	</a>
        </td><td align="left">
          Logical Operator Type Traits (revision 1)
!       </td><td align="left">Y</td><td align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><div class="table"><a id="table.cxx1z_ts_status"></a><p class="title"><strong>Table 1.6. C++ Technical Specifications Implementation Status</strong></p><div class="table-contents"><table summary="C++ Technical Specifications Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2014/n4076.html" target="_top">
  	  N4076
  	</a>
--- 542,548 ----
  	</a>
        </td><td align="left">
          Logical Operator Type Traits (revision 1)
!       </td><td align="left">Y</td><td align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><div class="table"><a id="table.cxx1z_ts_status"></a><p class="title"><strong>Table 1.6. C++ Technical Specifications Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ Technical Specifications Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Paper</th><th align="left">Title</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<a class="link" href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2014/n4076.html" target="_top">
  	  N4076
  	</a>
*************** In this implementation the header names
*** 593,601 ****
  <code class="code">tr1/</code>, for instance <code class="code">&lt;tr1/functional&gt;</code>,
  <code class="code">&lt;tr1/memory&gt;</code>, and so on.
  </p><p>
! This page describes the TR1 support in mainline GCC SVN, not in any particular
! release.
! </p><div class="table"><a id="table.tr1_status"></a><p class="title"><strong>Table 1.7. C++ TR1 Implementation Status</strong></p><div class="table-contents"><table summary="C++ TR1 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left"><span class="emphasis"><em>2</em></span></td><td colspan="3" align="left"><span class="emphasis"><em>General Utilities</em></span></td></tr><tr><td align="left">2.1</td><td align="left">Reference wrappers</td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left">2.1.1</td><td align="left">Additions to header <code class="code">&lt;functional&gt;</code> synopsis</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2</td><td align="left">Class template <code class="code">reference_wrapper</code></td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left">2.1.2.1</td><td align="left"><code class="code">reference_wrapper</code> construct/copy/destroy</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.2</td><td align="left"><code class="code">reference_wrapper</code> assignment</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.3</td><td align="left"><code class="code">reference_wrapper</code> access</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.4</td><td align="left"><code class="code">reference_wrapper</code> invocation</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.5</td><td align="left"><code class="code">reference_wrapper</code> helper functions</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.2</td><td align="left">Smart pointers</td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left">2.2.1</td><td align="left">Additions to header <code class="code">&lt;memory&gt;</code> synopsis</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.2.2</td><td align="left">Class <code class="code">bad_weak_ptr</code></td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.2.3</td><td align="left">Class template <code class="code">shared_ptr</code></td><td align="left"> </td><td align="left">
  	<p>
  	  Uses code from
  	  <a class="link" href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top">boost::shared_ptr</a>.
--- 595,602 ----
  <code class="code">tr1/</code>, for instance <code class="code">&lt;tr1/functional&gt;</code>,
  <code class="code">&lt;tr1/memory&gt;</code>, and so on.
  </p><p>
! This page describes the TR1 support in the GCC 6 series.
! </p><div class="table"><a id="table.tr1_status"></a><p class="title"><strong>Table 1.7. C++ TR1 Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ TR1 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left"><span class="emphasis"><em>2</em></span></td><td colspan="3" align="left"><span class="emphasis"><em>General Utilities</em></span></td></tr><tr><td align="left">2.1</td><td align="left">Reference wrappers</td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left">2.1.1</td><td align="left">Additions to header <code class="code">&lt;functional&gt;</code> synopsis</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2</td><td align="left">Class template <code class="code">reference_wrapper</code></td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left">2.1.2.1</td><td align="left"><code class="code">reference_wrapper</code> construct/copy/destroy</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.2</td><td align="left"><code class="code">reference_wrapper</code> assignment</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.3</td><td align="left"><code class="code">reference_wrapper</code> access</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.4</td><td align="left"><code class="code">reference_wrapper</code> invocation</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.1.2.5</td><td align="left"><code class="code">reference_wrapper</code> helper functions</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.2</td><td align="left">Smart pointers</td><td align="left"> </td><td align="left"> </td></tr><tr><td align="left">2.2.1</td><td align="left">Additions to header <code class="code">&lt;memory&gt;</code> synopsis</td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.2.2</td><td align="left">Class <code class="code">bad_weak_ptr</code></td><td align="left">Y</td><td align="left"> </td></tr><tr><td align="left">2.2.3</td><td align="left">Class template <code class="code">shared_ptr</code></td><td align="left"> </td><td align="left">
  	<p>
  	  Uses code from
  	  <a class="link" href="http://www.boost.org/libs/smart_ptr/shared_ptr.htm" target="_top">boost::shared_ptr</a>.
*************** ISO/IEC TR 24733 Date: 2009-08-28
*** 614,622 ****
  Extension for the programming language C++ to support
  decimal floating-point arithmetic
  </p><p>
! This page describes the TR 24733 support in mainline GCC SVN, not in any
! particular release.
! </p><div class="table"><a id="table.decfp_status"></a><p class="title"><strong>Table 1.8. C++ TR 24733 Implementation Status</strong></p><div class="table-contents"><table summary="C++ TR 24733 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<span class="emphasis"><em>0</em></span>
        </td><td colspan="3" align="left">
  	<span class="emphasis"><em>Introduction</em></span>
--- 615,622 ----
  Extension for the programming language C++ to support
  decimal floating-point arithmetic
  </p><p>
! This page describes the TR 24733 support in the GCC 6 series.
! </p><div class="table"><a id="table.decfp_status"></a><p class="title"><strong>Table 1.8. C++ TR 24733 Implementation Status</strong></p><div class="table-contents"><table class="table" summary="C++ TR 24733 Implementation Status" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><thead><tr><th align="left">Section</th><th align="left">Description</th><th align="left">Status</th><th align="left">Comments</th></tr></thead><tbody><tr><td align="left">
  	<span class="emphasis"><em>0</em></span>
        </td><td colspan="3" align="left">
  	<span class="emphasis"><em>Introduction</em></span>
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    Porting and Maintenance
    
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    Porting and Maintenance
    
  </th><td width="20%" align="right"> <a accesskey="n" href="abi.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.setup.test"></a>Test</h2></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/traits.html gcc-6.5.0/libstdc++-v3/doc/html/manual/traits.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/traits.html	Tue Apr  2 00:09:44 2013
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    Utilities
    
  </th><td width="20%" align="right"> <a accesskey="n" href="strings.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.util.traits"></a>Traits</h2></div></div></div><p>
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    Utilities
    
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diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/unordered_associative.html gcc-6.5.0/libstdc++-v3/doc/html/manual/unordered_associative.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/unordered_associative.html	Wed Jan 29 23:46:31 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/unordered_associative.html	Wed Oct 25 14:16:26 2017
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    Containers
    
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    Containers
    
  </th><td width="20%" align="right"> <a accesskey="n" href="containers_and_c.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.containers.unordered"></a>Unordered Associative</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="containers.unordered.insert_hints"></a>Insertion Hints</h3></div></div></div><p>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using.html	Fri Oct 16 13:55:12 2015
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! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 3. Using</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="intro.html" title="Part I.  Introduction" /><link rel="prev" href="make.html" title="Make" /><link rel="next" href="using_headers.html" title="Headers" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 3. Using</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="make.html">Prev</a> </td><th width="60%" align="center">Part I. 
    Introduction
    
  </th><td width="20%" align="right"> <a accesskey="n" href="using_headers.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.using"></a>Chapter 3. Using</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt><dt><span class="section"><a href="debug.html#debug.profile_mode">Profile-based Performance Analysis</a></span></dt></dl></dd></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.flags"></a>Command Options</h2></div></div></div><p>
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    Introduction
    
  </th><td width="20%" align="right"> <a accesskey="n" href="using_headers.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.intro.using"></a>Chapter 3. Using</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="using.html#manual.intro.using.flags">Command Options</a></span></dt><dt><span class="section"><a href="using_headers.html">Headers</a></span></dt><dd><dl><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.all">Header Files</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.mixing">Mixing Headers</a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.cheaders">The C Headers and <code class="code">namespace std</code></a></span></dt><dt><span class="section"><a href="using_headers.html#manual.intro.using.headers.pre">Precompiled Headers</a></span></dt></dl></dd><dt><span class="section"><a href="using_macros.html">Macros</a></span></dt><dt><span class="section"><a href="using_dual_abi.html">Dual ABI</a></span></dt><dd><dl><dt><span class="section"><a href="using_dual_abi.html#manual.intro.using.abi.trouble">Troubleshooting</a></span></dt></dl></dd><dt><span class="section"><a href="using_namespaces.html">Namespaces</a></span></dt><dd><dl><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.all">Available Namespaces</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.std">namespace std</a></span></dt><dt><span class="section"><a href="using_namespaces.html#manual.intro.using.namespaces.comp">Using Namespace Composition</a></span></dt></dl></dd><dt><span class="section"><a href="using_dynamic_or_shared.html">Linking</a></span></dt><dd><dl><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.freestanding">Almost Nothing</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.dynamic">Finding Dynamic or Shared Libraries</a></span></dt><dt><span class="section"><a href="using_dynamic_or_shared.html#manual.intro.using.linkage.experimental">Experimental Library Extensions</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html">Concurrency</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.prereq">Prerequisites</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.thread_safety">Thread Safety</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.atomics">Atomics</a></span></dt><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.io">IO</a></span></dt><dd><dl><dt><span class="section"><a href="using_concurrency.html#concurrency.io.structure">Structure</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.defaults">Defaults</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.future">Future</a></span></dt><dt><span class="section"><a href="using_concurrency.html#concurrency.io.alt">Alternatives</a></span></dt></dl></dd><dt><span class="section"><a href="using_concurrency.html#manual.intro.using.concurrency.containers">Containers</a></span></dt></dl></dd><dt><span class="section"><a href="using_exceptions.html">Exceptions</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.safety">Exception Safety</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.propagating">Exception Neutrality</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.no">Doing without</a></span></dt><dt><span class="section"><a href="using_exceptions.html#intro.using.exception.compat">Compatibility</a></span></dt><dd><dl><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.c">With <code class="literal">C</code></a></span></dt><dt><span class="section"><a href="using_exceptions.html#using.exception.compat.posix">With <code class="literal">POSIX</code> thread cancellation</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="debug.html">Debugging Support</a></span></dt><dd><dl><dt><span class="section"><a href="debug.html#debug.compiler">Using <span class="command"><strong>g++</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.req">Debug Versions of Library Binary Files</a></span></dt><dt><span class="section"><a href="debug.html#debug.memory">Memory Leak Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.races">Data Race Hunting</a></span></dt><dt><span class="section"><a href="debug.html#debug.gdb">Using <span class="command"><strong>gdb</strong></span></a></span></dt><dt><span class="section"><a href="debug.html#debug.exceptions">Tracking uncaught exceptions</a></span></dt><dt><span class="section"><a href="debug.html#debug.debug_mode">Debug Mode</a></span></dt><dt><span class="section"><a href="debug.html#debug.compile_time_checks">Compile Time Checking</a></span></dt><dt><span class="section"><a href="debug.html#debug.profile_mode">Profile-based Performance Analysis</a></span></dt></dl></dd></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.flags"></a>Command Options</h2></div></div></div><p>
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        By default, <span class="command"><strong>g++</strong></span> is equivalent to
        <span class="command"><strong>g++ -std=gnu++14</strong></span> since GCC 6, and
        <span class="command"><strong>g++ -std=gnu++98</strong></span> for older releases.
!     </p><div class="table"><a id="table.cmd_options"></a><p class="title"><strong>Table 3.1. C++ Command Options</strong></p><div class="table-contents"><table summary="C++ Command Options" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Option Flags</th><th align="left">Description</th></tr></thead><tbody><tr><td align="left"><code class="literal">-std=c++98</code> or <code class="literal">-std=c++03</code>
        </td><td align="left">Use the 1998 ISO C++ standard plus amendments.</td></tr><tr><td align="left"><code class="literal">-std=gnu++98</code> or <code class="literal">-std=gnu++03</code>
        </td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++11</code></td><td align="left">Use the 2011 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++11</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++14</code></td><td align="left">Use the 2014 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++14</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-fexceptions</code></td><td align="left">See <a class="link" href="using_exceptions.html#intro.using.exception.no" title="Doing without">exception-free dialect</a></td></tr><tr><td align="left"><code class="literal">-frtti</code></td><td align="left">As above, but RTTI-free dialect.</td></tr><tr><td align="left"><code class="literal">-pthread</code> or <code class="literal">-pthreads</code></td><td align="left">For ISO C++11
          <code class="filename">&lt;thread&gt;</code>,
--- 13,19 ----
        By default, <span class="command"><strong>g++</strong></span> is equivalent to
        <span class="command"><strong>g++ -std=gnu++14</strong></span> since GCC 6, and
        <span class="command"><strong>g++ -std=gnu++98</strong></span> for older releases.
!     </p><div class="table"><a id="table.cmd_options"></a><p class="title"><strong>Table 3.1. C++ Command Options</strong></p><div class="table-contents"><table class="table" summary="C++ Command Options" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><thead><tr><th align="left">Option Flags</th><th align="left">Description</th></tr></thead><tbody><tr><td align="left"><code class="literal">-std=c++98</code> or <code class="literal">-std=c++03</code>
        </td><td align="left">Use the 1998 ISO C++ standard plus amendments.</td></tr><tr><td align="left"><code class="literal">-std=gnu++98</code> or <code class="literal">-std=gnu++03</code>
        </td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++11</code></td><td align="left">Use the 2011 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++11</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-std=c++14</code></td><td align="left">Use the 2014 ISO C++ standard.</td></tr><tr><td align="left"><code class="literal">-std=gnu++14</code></td><td align="left">As directly above, with GNU extensions.</td></tr><tr><td align="left"><code class="literal">-fexceptions</code></td><td align="left">See <a class="link" href="using_exceptions.html#intro.using.exception.no" title="Doing without">exception-free dialect</a></td></tr><tr><td align="left"><code class="literal">-frtti</code></td><td align="left">As above, but RTTI-free dialect.</td></tr><tr><td align="left"><code class="literal">-pthread</code> or <code class="literal">-pthreads</code></td><td align="left">For ISO C++11
          <code class="filename">&lt;thread&gt;</code>,
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_concurrency.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_concurrency.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_concurrency.html	Mon Apr 20 11:07:50 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_concurrency.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Concurrency</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_dynamic_or_shared.html" title="Linking" /><link rel="next" href="using_exceptions.html" title="Exceptions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Concurrency</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_dynamic_or_shared.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_exceptions.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.concurrency"></a>Concurrency</h2></div></div></div><p>This section discusses issues surrounding the proper compilation
        of multithreaded applications which use the Standard C++
        library.  This information is GCC-specific since the C++
        standard does not address matters of multithreaded applications.
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Concurrency</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_dynamic_or_shared.html" title="Linking" /><link rel="next" href="using_exceptions.html" title="Exceptions" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Concurrency</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_dynamic_or_shared.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_exceptions.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.concurrency"></a>Concurrency</h2></div></div></div><p>This section discusses issues surrounding the proper compilation
        of multithreaded applications which use the Standard C++
        library.  This information is GCC-specific since the C++
        standard does not address matters of multithreaded applications.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_dual_abi.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_dual_abi.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_dual_abi.html	Tue Apr 21 10:38:43 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_dual_abi.html	Thu May 10 19:27:14 2018
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Dual ABI</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_macros.html" title="Macros" /><link rel="next" href="using_namespaces.html" title="Namespaces" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Dual ABI</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_macros.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_namespaces.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.abi"></a>Dual ABI</h2></div></div></div><p> In the GCC 5.1 release libstdc++ introduced a new library ABI that
    includes new implementations of <code class="classname">std::string</code> and
    <code class="classname">std::list</code>. These changes were necessary to conform
    to the 2011 C++ standard which forbids Copy-On-Write strings and requires
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Dual ABI</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_macros.html" title="Macros" /><link rel="next" href="using_namespaces.html" title="Namespaces" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Dual ABI</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_macros.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_namespaces.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.abi"></a>Dual ABI</h2></div></div></div><p> In the GCC 5.1 release libstdc++ introduced a new library ABI that
    includes new implementations of <code class="classname">std::string</code> and
    <code class="classname">std::list</code>. These changes were necessary to conform
    to the 2011 C++ standard which forbids Copy-On-Write strings and requires
***************
*** 14,20 ****
    for the new implementations have different names the definitions for both
    versions can be present in the same library.
  </p><p> The <span class="symbol">_GLIBCXX_USE_CXX11_ABI</span> macro (see
! <a class="xref" href="using_macros.html" title="Macros">Macros</a>) controls whether
    the declarations in the library headers use the old or new ABI.
    So the decision of which ABI to use can be made separately for each
    source file being compiled.
--- 14,20 ----
    for the new implementations have different names the definitions for both
    versions can be present in the same library.
  </p><p> The <span class="symbol">_GLIBCXX_USE_CXX11_ABI</span> macro (see
!   <a class="xref" href="using_macros.html" title="Macros">Macros</a>) controls whether
    the declarations in the library headers use the old or new ABI.
    So the decision of which ABI to use can be made separately for each
    source file being compiled.
***************
*** 43,52 ****
    facet that derives from one or other version of
    <code class="classname">time_get</code> is installed in the locale).
  </p><p> Although the standard exception types defined in
!   <code class="filename">&lt;stdexcept&gt;</code> use strings, they
    are not defined twice, so that a <code class="classname">std::out_of_range</code>
    exception thrown in one file can always be caught by a suitable handler in
    another file, even if the two files are compiled with different ABIs.
  </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.abi.trouble"></a>Troubleshooting</h3></div></div></div><p> If you get linker errors about undefined references to symbols
    that involve types in the <code class="code">std::__cxx11</code> namespace or the tag
    <code class="code">[abi:cxx11]</code> then it probably indicates that you are trying to
--- 43,77 ----
    facet that derives from one or other version of
    <code class="classname">time_get</code> is installed in the locale).
  </p><p> Although the standard exception types defined in
!   <code class="filename">&lt;stdexcept&gt;</code> use strings, most
    are not defined twice, so that a <code class="classname">std::out_of_range</code>
    exception thrown in one file can always be caught by a suitable handler in
    another file, even if the two files are compiled with different ABIs.
+ </p><p> One exception type does change when using the new ABI, namely
+   <code class="classname">std::ios_base::failure</code>.
+   This is necessary because the 2011 standard changed its base class from
+   <code class="classname">std::exception</code> to
+   <code class="classname">std::system_error</code>, which causes its layout to change.
+   Exceptions due to iostream errors are thrown by a function inside
+   <code class="filename">libstdc++.so</code>, so whether the thrown
+   exception uses the old <code class="classname">std::ios_base::failure</code> type
+   or the new one depends on the ABI that was active when
+   <code class="filename">libstdc++.so</code> was built,
+   <span class="emphasis"><em>not</em></span> the ABI active in the user code that is using
+   iostreams.
+   This means that for a given build of GCC the type thrown is fixed.
+   In current releases the library throws a special type that can be caught
+   by handlers for either the old or new type,
+   but for GCC 7.1, 7.2 and 7.3 the library throws the new
+   <code class="classname">std::ios_base::failure</code> type,
+   and for GCC 5.x and 6.x the library throws the old type.
+   Catch handlers of type <code class="classname">std::ios_base::failure</code>
+   will only catch the exceptions if using a newer release,
+   or if the handler is compiled with the same ABI as the type thrown by
+   the library.
+   Handlers for <code class="classname">std::exception</code> will always catch
+   iostreams exceptions, because the old and new type both inherit from
+   <code class="classname">std::exception</code>.
  </p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.abi.trouble"></a>Troubleshooting</h3></div></div></div><p> If you get linker errors about undefined references to symbols
    that involve types in the <code class="code">std::__cxx11</code> namespace or the tag
    <code class="code">[abi:cxx11]</code> then it probably indicates that you are trying to
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_dynamic_or_shared.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_dynamic_or_shared.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_dynamic_or_shared.html	Fri Oct 16 13:55:12 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_dynamic_or_shared.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Linking</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_namespaces.html" title="Namespaces" /><link rel="next" href="using_concurrency.html" title="Concurrency" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Linking</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_namespaces.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_concurrency.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.linkage"></a>Linking</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.linkage.freestanding"></a>Almost Nothing</h3></div></div></div><p>
  	Or as close as it gets: freestanding. This is a minimal
  	configuration, with only partial support for the standard
  	library. Assume only the following header files can be used:
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Linking</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_namespaces.html" title="Namespaces" /><link rel="next" href="using_concurrency.html" title="Concurrency" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Linking</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_namespaces.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_concurrency.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.linkage"></a>Linking</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.linkage.freestanding"></a>Almost Nothing</h3></div></div></div><p>
  	Or as close as it gets: freestanding. This is a minimal
  	configuration, with only partial support for the standard
  	library. Assume only the following header files can be used:
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_exceptions.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_exceptions.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_exceptions.html	Tue Apr 21 10:38:43 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_exceptions.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Exceptions</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="C++, exception, error, exception neutrality, exception safety, exception propagation, -fno-exceptions" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_concurrency.html" title="Concurrency" /><link rel="next" href="debug.html" title="Debugging Support" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Exceptions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_concurrency.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="debug.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.exceptions"></a>Exceptions</h2></div></div></div><p>
  The C++ language provides language support for stack unwinding
  with <code class="literal">try</code> and <code class="literal">catch</code> blocks and
  the <code class="literal">throw</code> keyword.
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Exceptions</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="C++, exception, error, exception neutrality, exception safety, exception propagation, -fno-exceptions" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_concurrency.html" title="Concurrency" /><link rel="next" href="debug.html" title="Debugging Support" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Exceptions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_concurrency.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="debug.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.exceptions"></a>Exceptions</h2></div></div></div><p>
  The C++ language provides language support for stack unwinding
  with <code class="literal">try</code> and <code class="literal">catch</code> blocks and
  the <code class="literal">throw</code> keyword.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_headers.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_headers.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_headers.html	Fri Sep 11 12:25:43 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_headers.html	Wed Aug  8 15:40:32 2018
***************
*** 1,10 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Headers</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using.html" title="Chapter 3. Using" /><link rel="next" href="using_macros.html" title="Macros" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Headers</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_macros.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.headers"></a>Headers</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.headers.all"></a>Header Files</h3></div></div></div><p>
       The C++ standard specifies the entire set of header files that
       must be available to all hosted implementations.  Actually, the
       word "files" is a misnomer, since the contents of the
       headers don't necessarily have to be in any kind of external
!      file.  The only rule is that when one <code class="code">#include</code>'s a
       header, the contents of that header become available, no matter
       how.
     </p><p>
--- 1,10 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Headers</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using.html" title="Chapter 3. Using" /><link rel="next" href="using_macros.html" title="Macros" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Headers</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_macros.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.headers"></a>Headers</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.headers.all"></a>Header Files</h3></div></div></div><p>
       The C++ standard specifies the entire set of header files that
       must be available to all hosted implementations.  Actually, the
       word "files" is a misnomer, since the contents of the
       headers don't necessarily have to be in any kind of external
!      file.  The only rule is that when one <code class="code">#include</code>s a
       header, the contents of that header become available, no matter
       how.
     </p><p>
***************
*** 12,36 ****
     </p><p>
       There are two main types of include files: header files related
       to a specific version of the ISO C++ standard (called Standard
!      Headers), and all others (TR1, C++ ABI, and Extensions).
     </p><p>
!      Two dialects of standard headers are supported, corresponding to
!      the 1998 standard as updated for 2003, and the current 2011 standard.
     </p><p>
!      C++98/03 include files. These are available in the default compilation mode, i.e. <code class="code">-std=c++98</code> or <code class="code">-std=gnu++98</code>.
!    </p><div class="table"><a id="table.cxx98_headers"></a><p class="title"><strong>Table 3.2. C++ 1998 Library Headers</strong></p><div class="table-contents"><table summary="C++ 1998 Library Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="filename">bitset</code></td><td align="left"><code class="filename">complex</code></td><td align="left"><code class="filename">deque</code></td><td align="left"><code class="filename">exception</code></td></tr><tr><td align="left"><code class="filename">fstream</code></td><td align="left"><code class="filename">functional</code></td><td align="left"><code class="filename">iomanip</code></td><td align="left"><code class="filename">ios</code></td><td align="left"><code class="filename">iosfwd</code></td></tr><tr><td align="left"><code class="filename">iostream</code></td><td align="left"><code class="filename">istream</code></td><td align="left"><code class="filename">iterator</code></td><td align="left"><code class="filename">limits</code></td><td align="left"><code class="filename">list</code></td></tr><tr><td align="left"><code class="filename">locale</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="filename">memory</code></td><td align="left"><code class="filename">new</code></td><td align="left"><code class="filename">numeric</code></td></tr><tr><td align="left"><code class="filename">ostream</code></td><td align="left"><code class="filename">queue</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="filename">sstream</code></td><td align="left"><code class="filename">stack</code></td></tr><tr><td align="left"><code class="filename">stdexcept</code></td><td align="left"><code class="filename">streambuf</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="filename">utility</code></td><td align="left"><code class="filename">typeinfo</code></td></tr><tr><td align="left"><code class="filename">valarray</code></td><td align="left"><code class="filename">vector</code></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.cxx98_cheaders"></a><p class="title"><strong>Table 3.3. C++ 1998 Library Headers for C Library Facilities</strong></p><div class="table-contents"><table summary="C++ 1998 Library Headers for C Library Facilities" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">cassert</code></td><td align="left"><code class="filename">cerrno</code></td><td align="left"><code class="filename">cctype</code></td><td align="left"><code class="filename">cfloat</code></td><td align="left"><code class="filename">ciso646</code></td></tr><tr><td align="left"><code class="filename">climits</code></td><td align="left"><code class="filename">clocale</code></td><td align="left"><code class="filename">cmath</code></td><td align="left"><code class="filename">csetjmp</code></td><td align="left"><code class="filename">csignal</code></td></tr><tr><td align="left"><code class="filename">cstdarg</code></td><td align="left"><code class="filename">cstddef</code></td><td align="left"><code class="filename">cstdio</code></td><td align="left"><code class="filename">cstdlib</code></td><td align="left"><code class="filename">cstring</code></td></tr><tr><td align="left"><code class="filename">ctime</code></td><td align="left"><code class="filename">cwchar</code></td><td align="left"><code class="filename">cwctype</code></td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr></tbody></table></div></div><br class="table-break" /><p>
! C++11 include files. These are only available in C++11 compilation
  mode, i.e. <code class="literal">-std=c++11</code> or <code class="literal">-std=gnu++11</code>.
! </p><p></p><div class="table"><a id="table.cxx11_headers"></a><p class="title"><strong>Table 3.4. C++ 2011 Library Headers</strong></p><div class="table-contents"><table summary="C++ 2011 Library Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="filename">array</code></td><td align="left"><code class="filename">bitset</code></td><td align="left"><code class="filename">chrono</code></td><td align="left"><code class="filename">complex</code></td></tr><tr><td align="left"><code class="filename">condition_variable</code></td><td align="left"><code class="filename">deque</code></td><td align="left"><code class="filename">exception</code></td><td align="left"><code class="filename">forward_list</code></td><td align="left"><code class="filename">fstream</code></td></tr><tr><td align="left"><code class="filename">functional</code></td><td align="left"><code class="filename">future</code></td><td align="left"><code class="filename">initalizer_list</code></td><td align="left"><code class="filename">iomanip</code></td><td align="left"><code class="filename">ios</code></td></tr><tr><td align="left"><code class="filename">iosfwd</code></td><td align="left"><code class="filename">iostream</code></td><td align="left"><code class="filename">istream</code></td><td align="left"><code class="filename">iterator</code></td><td align="left"><code class="filename">limits</code></td></tr><tr><td align="left"><code class="filename">list</code></td><td align="left"><code class="filename">locale</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="filename">memory</code></td><td align="left"><code class="filename">mutex</code></td></tr><tr><td align="left"><code class="filename">new</code></td><td align="left"><code class="filename">numeric</code></td><td align="left"><code class="filename">ostream</code></td><td align="left"><code class="filename">queue</code></td><td align="left"><code class="filename">random</code></td></tr><tr><td align="left"><code class="filename">ratio</code></td><td align="left"><code class="filename">regex</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="filename">sstream</code></td><td align="left"><code class="filename">stack</code></td></tr><tr><td align="left"><code class="filename">stdexcept</code></td><td align="left"><code class="filename">streambuf</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="filename">system_error</code></td><td align="left"><code class="filename">thread</code></td></tr><tr><td align="left"><code class="filename">tuple</code></td><td align="left"><code class="filename">type_traits</code></td><td align="left"><code class="filename">typeinfo</code></td><td align="left"><code class="filename">unordered_map</code></td><td align="left"><code class="filename">unordered_set</code></td></tr><tr><td align="left"><code class="filename">utility</code></td><td align="left"><code class="filename">valarray</code></td><td align="left"><code class="filename">vector</code></td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.cxx11_cheaders"></a><p class="title"><strong>Table 3.5. C++ 2011 Library Headers for C Library Facilities</strong></p><div class="table-contents"><table summary="C++ 2011 Library Headers for C Library Facilities" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">cassert</code></td><td align="left"><code class="filename">ccomplex</code></td><td align="left"><code class="filename">cctype</code></td><td align="left"><code class="filename">cerrno</code></td><td align="left"><code class="filename">cfenv</code></td></tr><tr><td align="left"><code class="filename">cfloat</code></td><td align="left"><code class="filename">cinttypes</code></td><td align="left"><code class="filename">ciso646</code></td><td align="left"><code class="filename">climits</code></td><td align="left"><code class="filename">clocale</code></td></tr><tr><td align="left"><code class="filename">cmath</code></td><td align="left"><code class="filename">csetjmp</code></td><td align="left"><code class="filename">csignal</code></td><td align="left"><code class="filename">cstdarg</code></td><td align="left"><code class="filename">cstdbool</code></td></tr><tr><td align="left"><code class="filename">cstddef</code></td><td align="left"><code class="filename">cstdint</code></td><td align="left"><code class="filename">cstdlib</code></td><td align="left"><code class="filename">cstdio</code></td><td align="left"><code class="filename">cstring</code></td></tr><tr><td align="left"><code class="filename">ctgmath</code></td><td align="left"><code class="filename">ctime</code></td><td align="left"><code class="filename">cuchar</code></td><td align="left"><code class="filename">cwchar</code></td><td align="left"><code class="filename">cwctype</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
    In addition, TR1 includes as:
! </p><div class="table"><a id="table.tr1_headers"></a><p class="title"><strong>Table 3.6. C++ TR 1 Library Headers</strong></p><div class="table-contents"><table summary="C++ TR 1 Library Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">tr1/array</code></td><td align="left"><code class="filename">tr1/complex</code></td><td align="left"><code class="filename">tr1/memory</code></td><td align="left"><code class="filename">tr1/functional</code></td><td align="left"><code class="filename">tr1/random</code></td></tr><tr><td align="left"><code class="filename">tr1/regex</code></td><td align="left"><code class="filename">tr1/tuple</code></td><td align="left"><code class="filename">tr1/type_traits</code></td><td align="left"><code class="filename">tr1/unordered_map</code></td><td align="left"><code class="filename">tr1/unordered_set</code></td></tr><tr><td align="left"><code class="filename">tr1/utility</code></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.tr1_cheaders"></a><p class="title"><strong>Table 3.7. C++ TR 1 Library Headers for C Library Facilities</strong></p><div class="table-contents"><table summary="C++ TR 1 Library Headers for C Library Facilities" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">tr1/ccomplex</code></td><td align="left"><code class="filename">tr1/cfenv</code></td><td align="left"><code class="filename">tr1/cfloat</code></td><td align="left"><code class="filename">tr1/cmath</code></td><td align="left"><code class="filename">tr1/cinttypes</code></td></tr><tr><td align="left"><code class="filename">tr1/climits</code></td><td align="left"><code class="filename">tr1/cstdarg</code></td><td align="left"><code class="filename">tr1/cstdbool</code></td><td align="left"><code class="filename">tr1/cstdint</code></td><td align="left"><code class="filename">tr1/cstdio</code></td></tr><tr><td align="left"><code class="filename">tr1/cstdlib</code></td><td align="left"><code class="filename">tr1/ctgmath</code></td><td align="left"><code class="filename">tr1/ctime</code></td><td align="left"><code class="filename">tr1/cwchar</code></td><td align="left"><code class="filename">tr1/cwctype</code></td></tr></tbody></table></div></div><br class="table-break" /><p>Decimal floating-point arithmetic is available if the C++
  compiler supports scalar decimal floating-point types defined via
  <code class="code">__attribute__((mode(SD|DD|LD)))</code>.
! </p><div class="table"><a id="table.decfp_headers"></a><p class="title"><strong>Table 3.8. C++ TR 24733 Decimal Floating-Point Header</strong></p><div class="table-contents"><table summary="C++ TR 24733 Decimal Floating-Point Header" border="1"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><code class="filename">decimal/decimal</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
    Also included are files for the C++ ABI interface:
! </p><div class="table"><a id="table.abi_headers"></a><p class="title"><strong>Table 3.9. C++ ABI Headers</strong></p><div class="table-contents"><table summary="C++ ABI Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left"><code class="filename">cxxabi.h</code></td><td align="left"><code class="filename">cxxabi_forced.h</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
    And a large variety of extensions.
! </p><div class="table"><a id="table.ext_headers"></a><p class="title"><strong>Table 3.10. Extension Headers</strong></p><div class="table-contents"><table summary="Extension Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">ext/algorithm</code></td><td align="left"><code class="filename">ext/atomicity.h</code></td><td align="left"><code class="filename">ext/array_allocator.h</code></td><td align="left"><code class="filename">ext/bitmap_allocator.h</code></td><td align="left"><code class="filename">ext/cast.h</code></td></tr><tr><td align="left"><code class="filename">ext/codecvt_specializations.h</code></td><td align="left"><code class="filename">ext/concurrence.h</code></td><td align="left"><code class="filename">ext/debug_allocator.h</code></td><td align="left"><code class="filename">ext/enc_filebuf.h</code></td><td align="left"><code class="filename">ext/extptr_allocator.h</code></td></tr><tr><td align="left"><code class="filename">ext/functional</code></td><td align="left"><code class="filename">ext/iterator</code></td><td align="left"><code class="filename">ext/malloc_allocator.h</code></td><td align="left"><code class="filename">ext/memory</code></td><td align="left"><code class="filename">ext/mt_allocator.h</code></td></tr><tr><td align="left"><code class="filename">ext/new_allocator.h</code></td><td align="left"><code class="filename">ext/numeric</code></td><td align="left"><code class="filename">ext/numeric_traits.h</code></td><td align="left"><code class="filename">ext/pb_ds/assoc_container.h</code></td><td align="left"><code class="filename">ext/pb_ds/priority_queue.h</code></td></tr><tr><td align="left"><code class="filename">ext/pod_char_traits.h</code></td><td align="left"><code class="filename">ext/pool_allocator.h</code></td><td align="left"><code class="filename">ext/rb_tree</code></td><td align="left"><code class="filename">ext/rope</code></td><td align="left"><code class="filename">ext/slist</code></td></tr><tr><td align="left"><code class="filename">ext/stdio_filebuf.h</code></td><td align="left"><code class="filename">ext/stdio_sync_filebuf.h</code></td><td align="left"><code class="filename">ext/throw_allocator.h</code></td><td align="left"><code class="filename">ext/typelist.h</code></td><td align="left"><code class="filename">ext/type_traits.h</code></td></tr><tr><td align="left"><code class="filename">ext/vstring.h</code></td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td><td class="auto-generated"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.debug_headers"></a><p class="title"><strong>Table 3.11. Extension Debug Headers</strong></p><div class="table-contents"><table summary="Extension Debug Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">debug/bitset</code></td><td align="left"><code class="filename">debug/deque</code></td><td align="left"><code class="filename">debug/list</code></td><td align="left"><code class="filename">debug/map</code></td><td align="left"><code class="filename">debug/set</code></td></tr><tr><td align="left"><code class="filename">debug/string</code></td><td align="left"><code class="filename">debug/unordered_map</code></td><td align="left"><code class="filename">debug/unordered_set</code></td><td align="left"><code class="filename">debug/vector</code></td><td class="auto-generated"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.profile_headers"></a><p class="title"><strong>Table 3.12. Extension Profile Headers</strong></p><div class="table-contents"><table summary="Extension Profile Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><tbody><tr><td align="left"><code class="filename">profile/bitset</code></td><td align="left"><code class="filename">profile/deque</code></td><td align="left"><code class="filename">profile/list</code></td><td align="left"><code class="filename">profile/map</code></td></tr><tr><td align="left"><code class="filename">profile/set</code></td><td align="left"><code class="filename">profile/unordered_map</code></td><td align="left"><code class="filename">profile/unordered_set</code></td><td align="left"><code class="filename">profile/vector</code></td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.parallel_headers"></a><p class="title"><strong>Table 3.13. Extension Parallel Headers</strong></p><div class="table-contents"><table summary="Extension Parallel Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left"><code class="filename">parallel/algorithm</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.headers.mixing"></a>Mixing Headers</h3></div></div></div><p> A few simple rules.
  </p><p>First, mixing different dialects of the standard headers is not
  possible. It's an all-or-nothing affair. Thus, code like
  </p><pre class="programlisting">
--- 12,74 ----
     </p><p>
       There are two main types of include files: header files related
       to a specific version of the ISO C++ standard (called Standard
!      Headers), and all others (TS, TR1, C++ ABI, and Extensions).
     </p><p>
!      Multiple dialects of standard headers are supported, corresponding to
!      the 1998 standard as updated for 2003, the 2011 standard, the 2014
!      standard, and so on.
     </p><p>
!      <a class="xref" href="using_headers.html#table.cxx98_headers" title="Table 3.2. C++ 1998 Library Headers">Table 3.2, “C++ 1998 Library Headers”</a> and
!      <a class="xref" href="using_headers.html#table.cxx98_cheaders" title="Table 3.3. C++ 1998 Library Headers for C Library Facilities">Table 3.3, “C++ 1998 Library Headers for C Library Facilities”</a> and
!      <a class="xref" href="using_headers.html#table.cxx98_deprheaders" title="Table 3.4. C++ 1998 Deprecated Library Header">Table 3.4, “C++ 1998 Deprecated Library Header”</a>
!      show the C++98/03 include files.
!      These are available in the C++98 compilation mode,
!      i.e. <code class="code">-std=c++98</code> or <code class="code">-std=gnu++98</code>.
!      Unless specified otherwise below, they are also available in later modes
!      (C++11, C++14 etc).
!    </p><div class="table"><a id="table.cxx98_headers"></a><p class="title"><strong>Table 3.2. C++ 1998 Library Headers</strong></p><div class="table-contents"><table class="table" summary="C++ 1998 Library Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">algorithm</code></td><td align="left"><code class="filename">bitset</code></td><td align="left"><code class="filename">complex</code></td><td align="left"><code class="filename">deque</code></td><td align="left"><code class="filename">exception</code></td></tr><tr><td align="left"><code class="filename">fstream</code></td><td align="left"><code class="filename">functional</code></td><td align="left"><code class="filename">iomanip</code></td><td align="left"><code class="filename">ios</code></td><td align="left"><code class="filename">iosfwd</code></td></tr><tr><td align="left"><code class="filename">iostream</code></td><td align="left"><code class="filename">istream</code></td><td align="left"><code class="filename">iterator</code></td><td align="left"><code class="filename">limits</code></td><td align="left"><code class="filename">list</code></td></tr><tr><td align="left"><code class="filename">locale</code></td><td align="left"><code class="filename">map</code></td><td align="left"><code class="filename">memory</code></td><td align="left"><code class="filename">new</code></td><td align="left"><code class="filename">numeric</code></td></tr><tr><td align="left"><code class="filename">ostream</code></td><td align="left"><code class="filename">queue</code></td><td align="left"><code class="filename">set</code></td><td align="left"><code class="filename">sstream</code></td><td align="left"><code class="filename">stack</code></td></tr><tr><td align="left"><code class="filename">stdexcept</code></td><td align="left"><code class="filename">streambuf</code></td><td align="left"><code class="filename">string</code></td><td align="left"><code class="filename">utility</code></td><td align="left"><code class="filename">typeinfo</code></td></tr><tr><td align="left"><code class="filename">valarray</code></td><td align="left"><code class="filename">vector</code></td><td colspan="3" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.cxx98_cheaders"></a><p class="title"><strong>Table 3.3. C++ 1998 Library Headers for C Library Facilities</strong></p><div class="table-contents"><table class="table" summary="C++ 1998 Library Headers for C Library Facilities" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">cassert</code></td><td align="left"><code class="filename">cerrno</code></td><td align="left"><code class="filename">cctype</code></td><td align="left"><code class="filename">cfloat</code></td><td align="left"><code class="filename">ciso646</code></td></tr><tr><td align="left"><code class="filename">climits</code></td><td align="left"><code class="filename">clocale</code></td><td align="left"><code class="filename">cmath</code></td><td align="left"><code class="filename">csetjmp</code></td><td align="left"><code class="filename">csignal</code></td></tr><tr><td align="left"><code class="filename">cstdarg</code></td><td align="left"><code class="filename">cstddef</code></td><td align="left"><code class="filename">cstdio</code></td><td align="left"><code class="filename">cstdlib</code></td><td align="left"><code class="filename">cstring</code></td></tr><tr><td align="left"><code class="filename">ctime</code></td><td align="left"><code class="filename">cwchar</code></td><td align="left"><code class="filename">cwctype</code></td><td colspan="2" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p>
!   The following header is deprecated
!   and might be removed from a future C++ standard.
! </p><div class="table"><a id="table.cxx98_deprheaders"></a><p class="title"><strong>Table 3.4. C++ 1998 Deprecated Library Header</strong></p><div class="table-contents"><table class="table" summary="C++ 1998 Deprecated Library Header" border="1"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><code class="filename">strstream</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
! <a class="xref" href="using_headers.html#table.cxx11_headers" title="Table 3.5. C++ 2011 Library Headers">Table 3.5, “C++ 2011 Library Headers”</a> and
! <a class="xref" href="using_headers.html#table.cxx11_cheaders" title="Table 3.6. C++ 2011 Library Headers for C Library Facilities">Table 3.6, “C++ 2011 Library Headers for C Library Facilities”</a> show the C++11 include files.
! These are available in C++11 compilation
  mode, i.e. <code class="literal">-std=c++11</code> or <code class="literal">-std=gnu++11</code>.
! Including these headers in C++98/03 mode may result in compilation errors.
! Unless specified otherwise below, they are also available in later modes
! (C++14 etc).
! </p><p></p><div class="table"><a id="table.cxx11_headers"></a><p class="title"><strong>Table 3.5. C++ 2011 Library Headers</strong></p><div class="table-contents"><table class="table" summary="C++ 2011 Library Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">array</code></td><td align="left"><code class="filename">atomic</code></td><td align="left"><code class="filename">chrono</code></td><td align="left"><code class="filename">codecvt</code></td><td align="left"><code class="filename">condition_variable</code></td></tr><tr><td align="left"><code class="filename">forward_list</code></td><td align="left"><code class="filename">future</code></td><td align="left"><code class="filename">initalizer_list</code></td><td align="left"><code class="filename">mutex</code></td><td align="left"><code class="filename">random</code></td></tr><tr><td align="left"><code class="filename">ratio</code></td><td align="left"><code class="filename">regex</code></td><td align="left"><code class="filename">scoped_allocator</code></td><td align="left"><code class="filename">system_error</code></td><td align="left"><code class="filename">thread</code></td></tr><tr><td align="left"><code class="filename">tuple</code></td><td align="left"><code class="filename">typeindex</code></td><td align="left"><code class="filename">type_traits</code></td><td align="left"><code class="filename">unordered_map</code></td><td align="left"><code class="filename">unordered_set</code></td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.cxx11_cheaders"></a><p class="title"><strong>Table 3.6. C++ 2011 Library Headers for C Library Facilities</strong></p><div class="table-contents"><table class="table" summary="C++ 2011 Library Headers for C Library Facilities" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">ccomplex</code></td><td align="left"><code class="filename">cfenv</code></td><td align="left"><code class="filename">cinttypes</code></td><td align="left"><code class="filename">cstdalign</code></td><td align="left"><code class="filename">cstdbool</code></td></tr><tr><td align="left"><code class="filename">cstdint</code></td><td align="left"><code class="filename">ctgmath</code></td><td align="left"><code class="filename">cuchar</code></td><td colspan="2" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p>
! <a class="xref" href="using_headers.html#table.cxx14_headers" title="Table 3.7. C++ 2014 Library Header">Table 3.7, “C++ 2014 Library Header”</a> shows the C++14 include file.
! This is available in C++14 compilation
! mode, i.e. <code class="literal">-std=c++14</code> or <code class="literal">-std=gnu++14</code>.
! Including this header in C++98/03 mode or C++11 will not result in
! compilation errors, but will not define anything.
! Unless specified otherwise below, it is also available in later modes
! (C++17 etc).
! </p><p></p><div class="table"><a id="table.cxx14_headers"></a><p class="title"><strong>Table 3.7. C++ 2014 Library Header</strong></p><div class="table-contents"><table class="table" summary="C++ 2014 Library Header" border="1"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><code class="filename">shared_mutex</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
! <a class="xref" href="using_headers.html#table.filesystemts_headers" title="Table 3.8. File System TS Header">Table 3.8, “File System TS Header”</a>,
! shows the additional include file define by the
! File System Technical Specification, ISO/IEC TS 18822.
! This is available in C++11 and later compilation modes.
! Including this header in earlier modes will not result in
! compilation errors, but will not define anything.
! </p><p></p><div class="table"><a id="table.filesystemts_headers"></a><p class="title"><strong>Table 3.8. File System TS Header</strong></p><div class="table-contents"><table class="table" summary="File System TS Header" border="1"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><code class="filename">experimental/filesystem</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
! <a class="xref" href="using_headers.html#table.libfundts_headers" title="Table 3.9. Library Fundamentals TS Headers">Table 3.9, “Library Fundamentals TS Headers”</a>,
! shows the additional include files define by the C++ Extensions for 
! Library Fundamentals Technical Specification, ISO/IEC TS 19568.
! These are available in C++14 and later compilation modes.
! Including these headers in earlier modes will not result in
! compilation errors, but will not define anything.
! </p><p></p><div class="table"><a id="table.libfundts_headers"></a><p class="title"><strong>Table 3.9. Library Fundamentals TS Headers</strong></p><div class="table-contents"><table class="table" summary="Library Fundamentals TS Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">experimental/algorithm</code></td><td align="left"><code class="filename">experimental/any</code></td><td align="left"><code class="filename">experimental/array</code></td><td align="left"><code class="filename">experimental/chrono</code></td><td align="left"><code class="filename">experimental/deque</code></td></tr><tr><td align="left"><code class="filename">experimental/forward_list</code></td><td align="left"><code class="filename">experimental/functional</code></td><td align="left"><code class="filename">experimental/iterator</code></td><td align="left"><code class="filename">experimental/list</code></td><td align="left"><code class="filename">experimental/map</code></td></tr><tr><td align="left"><code class="filename">experimental/memory</code></td><td align="left"><code class="filename">experimental/memory_resource</code></td><td align="left"><code class="filename">experimental/numeric</code></td><td align="left"><code class="filename">experimental/optional</code></td><td align="left"><code class="filename">experimental/propagate_const</code></td></tr><tr><td align="left"><code class="filename">experimental/random</code></td><td align="left"><code class="filename">experimental/ratio</code></td><td align="left"><code class="filename">experimental/regex</code></td><td align="left"><code class="filename">experimental/set</code></td><td align="left"><code class="filename">experimental/string</code></td></tr><tr><td align="left"><code class="filename">experimental/string_view</code></td><td align="left"><code class="filename">experimental/system_error</code></td><td align="left"><code class="filename">experimental/tuple</code></td><td align="left"><code class="filename">experimental/type_traits</code></td><td align="left"><code class="filename">experimental/unordered_map</code></td></tr><tr><td align="left"><code class="filename">experimental/unordered_set</code></td><td align="left"><code class="filename">experimental/utility</code></td><td align="left"><code class="filename">experimental/vector</code></td><td colspan="2" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p>
    In addition, TR1 includes as:
! </p><div class="table"><a id="table.tr1_headers"></a><p class="title"><strong>Table 3.10. C++ TR 1 Library Headers</strong></p><div class="table-contents"><table class="table" summary="C++ TR 1 Library Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">tr1/array</code></td><td align="left"><code class="filename">tr1/complex</code></td><td align="left"><code class="filename">tr1/memory</code></td><td align="left"><code class="filename">tr1/functional</code></td><td align="left"><code class="filename">tr1/random</code></td></tr><tr><td align="left"><code class="filename">tr1/regex</code></td><td align="left"><code class="filename">tr1/tuple</code></td><td align="left"><code class="filename">tr1/type_traits</code></td><td align="left"><code class="filename">tr1/unordered_map</code></td><td align="left"><code class="filename">tr1/unordered_set</code></td></tr><tr><td align="left"><code class="filename">tr1/utility</code></td><td colspan="4" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.tr1_cheaders"></a><p class="title"><strong>Table 3.11. C++ TR 1 Library Headers for C Library Facilities</strong></p><div class="table-contents"><table class="table" summary="C++ TR 1 Library Headers for C Library Facilities" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">tr1/ccomplex</code></td><td align="left"><code class="filename">tr1/cfenv</code></td><td align="left"><code class="filename">tr1/cfloat</code></td><td align="left"><code class="filename">tr1/cmath</code></td><td align="left"><code class="filename">tr1/cinttypes</code></td></tr><tr><td align="left"><code class="filename">tr1/climits</code></td><td align="left"><code class="filename">tr1/cstdarg</code></td><td align="left"><code class="filename">tr1/cstdbool</code></td><td align="left"><code class="filename">tr1/cstdint</code></td><td align="left"><code class="filename">tr1/cstdio</code></td></tr><tr><td align="left"><code class="filename">tr1/cstdlib</code></td><td align="left"><code class="filename">tr1/ctgmath</code></td><td align="left"><code class="filename">tr1/ctime</code></td><td align="left"><code class="filename">tr1/cwchar</code></td><td align="left"><code class="filename">tr1/cwctype</code></td></tr></tbody></table></div></div><br class="table-break" /><p>Decimal floating-point arithmetic is available if the C++
  compiler supports scalar decimal floating-point types defined via
  <code class="code">__attribute__((mode(SD|DD|LD)))</code>.
! </p><div class="table"><a id="table.decfp_headers"></a><p class="title"><strong>Table 3.12. C++ TR 24733 Decimal Floating-Point Header</strong></p><div class="table-contents"><table class="table" summary="C++ TR 24733 Decimal Floating-Point Header" border="1"><colgroup><col align="left" class="c1" /></colgroup><tbody><tr><td align="left"><code class="filename">decimal/decimal</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
    Also included are files for the C++ ABI interface:
! </p><div class="table"><a id="table.abi_headers"></a><p class="title"><strong>Table 3.13. C++ ABI Headers</strong></p><div class="table-contents"><table class="table" summary="C++ ABI Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left"><code class="filename">cxxabi.h</code></td><td align="left"><code class="filename">cxxabi_forced.h</code></td></tr></tbody></table></div></div><br class="table-break" /><p>
    And a large variety of extensions.
! </p><div class="table"><a id="table.ext_headers"></a><p class="title"><strong>Table 3.14. Extension Headers</strong></p><div class="table-contents"><table class="table" summary="Extension Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">ext/algorithm</code></td><td align="left"><code class="filename">ext/atomicity.h</code></td><td align="left"><code class="filename">ext/array_allocator.h</code></td><td align="left"><code class="filename">ext/bitmap_allocator.h</code></td><td align="left"><code class="filename">ext/cast.h</code></td></tr><tr><td align="left"><code class="filename">ext/codecvt_specializations.h</code></td><td align="left"><code class="filename">ext/concurrence.h</code></td><td align="left"><code class="filename">ext/debug_allocator.h</code></td><td align="left"><code class="filename">ext/enc_filebuf.h</code></td><td align="left"><code class="filename">ext/extptr_allocator.h</code></td></tr><tr><td align="left"><code class="filename">ext/functional</code></td><td align="left"><code class="filename">ext/iterator</code></td><td align="left"><code class="filename">ext/malloc_allocator.h</code></td><td align="left"><code class="filename">ext/memory</code></td><td align="left"><code class="filename">ext/mt_allocator.h</code></td></tr><tr><td align="left"><code class="filename">ext/new_allocator.h</code></td><td align="left"><code class="filename">ext/numeric</code></td><td align="left"><code class="filename">ext/numeric_traits.h</code></td><td align="left"><code class="filename">ext/pb_ds/assoc_container.h</code></td><td align="left"><code class="filename">ext/pb_ds/priority_queue.h</code></td></tr><tr><td align="left"><code class="filename">ext/pod_char_traits.h</code></td><td align="left"><code class="filename">ext/pool_allocator.h</code></td><td align="left"><code class="filename">ext/rb_tree</code></td><td align="left"><code class="filename">ext/rope</code></td><td align="left"><code class="filename">ext/slist</code></td></tr><tr><td align="left"><code class="filename">ext/stdio_filebuf.h</code></td><td align="left"><code class="filename">ext/stdio_sync_filebuf.h</code></td><td align="left"><code class="filename">ext/throw_allocator.h</code></td><td align="left"><code class="filename">ext/typelist.h</code></td><td align="left"><code class="filename">ext/type_traits.h</code></td></tr><tr><td align="left"><code class="filename">ext/vstring.h</code></td><td colspan="4" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.debug_headers"></a><p class="title"><strong>Table 3.15. Extension Debug Headers</strong></p><div class="table-contents"><table class="table" summary="Extension Debug Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /><col align="left" class="c5" /></colgroup><tbody><tr><td align="left"><code class="filename">debug/array</code></td><td align="left"><code class="filename">debug/bitset</code></td><td align="left"><code class="filename">debug/deque</code></td><td align="left"><code class="filename">debug/forward_list</code></td><td align="left"><code class="filename">debug/list</code></td></tr><tr><td align="left"><code class="filename">debug/map</code></td><td align="left"><code class="filename">debug/set</code></td><td align="left"><code class="filename">debug/string</code></td><td align="left"><code class="filename">debug/unordered_map</code></td><td align="left"><code class="filename">debug/unordered_set</code></td></tr><tr><td align="left"><code class="filename">debug/vector</code></td><td colspan="4" align="left"> </td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.profile_headers"></a><p class="title"><strong>Table 3.16. Extension Profile Headers</strong></p><div class="table-contents"><table class="table" summary="Extension Profile Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /><col align="left" class="c3" /><col align="left" class="c4" /></colgroup><tbody><tr><td align="left"><code class="filename">profile/bitset</code></td><td align="left"><code class="filename">profile/deque</code></td><td align="left"><code class="filename">profile/list</code></td><td align="left"><code class="filename">profile/map</code></td></tr><tr><td align="left"><code class="filename">profile/set</code></td><td align="left"><code class="filename">profile/unordered_map</code></td><td align="left"><code class="filename">profile/unordered_set</code></td><td align="left"><code class="filename">profile/vector</code></td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="table.parallel_headers"></a><p class="title"><strong>Table 3.17. Extension Parallel Headers</strong></p><div class="table-contents"><table class="table" summary="Extension Parallel Headers" border="1"><colgroup><col align="left" class="c1" /><col align="left" class="c2" /></colgroup><tbody><tr><td align="left"><code class="filename">parallel/algorithm</code></td><td align="left"><code class="filename">parallel/numeric</code></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.headers.mixing"></a>Mixing Headers</h3></div></div></div><p> A few simple rules.
  </p><p>First, mixing different dialects of the standard headers is not
  possible. It's an all-or-nothing affair. Thus, code like
  </p><pre class="programlisting">
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_macros.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_macros.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_macros.html	Thu May 18 14:35:12 2017
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_macros.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Macros</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_headers.html" title="Headers" /><link rel="next" href="using_dual_abi.html" title="Dual ABI" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Macros</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_headers.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_dual_abi.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.macros"></a>Macros</h2></div></div></div><p>
       All library macros begin with <code class="code">_GLIBCXX_</code>.
     </p><p>
       Furthermore, all pre-processor macros, switches, and
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Macros</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_headers.html" title="Headers" /><link rel="next" href="using_dual_abi.html" title="Dual ABI" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Macros</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_headers.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_dual_abi.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.macros"></a>Macros</h2></div></div></div><p>
       All library macros begin with <code class="code">_GLIBCXX_</code>.
     </p><p>
       Furthermore, all pre-processor macros, switches, and
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/using_namespaces.html gcc-6.5.0/libstdc++-v3/doc/html/manual/using_namespaces.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/using_namespaces.html	Tue Apr 21 10:38:43 2015
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/using_namespaces.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Namespaces</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_dual_abi.html" title="Dual ABI" /><link rel="next" href="using_dynamic_or_shared.html" title="Linking" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Namespaces</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_dual_abi.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_dynamic_or_shared.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.namespaces"></a>Namespaces</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.namespaces.all"></a>Available Namespaces</h3></div></div></div><p> There are three main namespaces.
  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>std</p><p>The ISO C++ standards specify that "all library entities are defined
  within namespace std." This includes namespaces nested
  within namespace <code class="code">std</code>, such as namespace
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Namespaces</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="using.html" title="Chapter 3. Using" /><link rel="prev" href="using_dual_abi.html" title="Dual ABI" /><link rel="next" href="using_dynamic_or_shared.html" title="Linking" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Namespaces</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="using_dual_abi.html">Prev</a> </td><th width="60%" align="center">Chapter 3. Using</th><td width="20%" align="right"> <a accesskey="n" href="using_dynamic_or_shared.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="manual.intro.using.namespaces"></a>Namespaces</h2></div></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="manual.intro.using.namespaces.all"></a>Available Namespaces</h3></div></div></div><p> There are three main namespaces.
  </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>std</p><p>The ISO C++ standards specify that "all library entities are defined
  within namespace std." This includes namespaces nested
  within namespace <code class="code">std</code>, such as namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/html/manual/utilities.html gcc-6.5.0/libstdc++-v3/doc/html/manual/utilities.html
*** gcc-6.4.0/libstdc++-v3/doc/html/manual/utilities.html	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/html/manual/utilities.html	Wed Oct 25 14:16:26 2017
***************
*** 1,5 ****
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 6.  Utilities</title><meta name="generator" content="DocBook XSL-NS Stylesheets V1.78.1" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="concept_checking.html" title="Concept Checking" /><link rel="next" href="pairs.html" title="Pairs" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 6. 
    Utilities
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="concept_checking.html">Prev</a> </td><th width="60%" align="center">Part II. 
--- 1,5 ----
  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 6.  Utilities</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="concept_checking.html" title="Concept Checking" /><link rel="next" href="pairs.html" title="Pairs" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 6. 
    Utilities
    
  </th></tr><tr><td width="20%" align="left"><a accesskey="p" href="concept_checking.html">Prev</a> </td><th width="60%" align="center">Part II. 
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/xml/manual/debug_mode.xml gcc-6.5.0/libstdc++-v3/doc/xml/manual/debug_mode.xml
*** gcc-6.4.0/libstdc++-v3/doc/xml/manual/debug_mode.xml	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/xml/manual/debug_mode.xml	Thu May 10 19:27:14 2018
*************** containers have additional debug capabil
*** 285,291 ****
    </row>
  </thead>
  <tbody>
!     <row>
      <entry><classname>std::unordered_map</classname></entry>
      <entry><filename class="headerfile">unordered_map</filename></entry>
      <entry><classname>__gnu_debug::unordered_map</classname></entry>
--- 285,303 ----
    </row>
  </thead>
  <tbody>
!   <row>
!     <entry><classname>std::array</classname></entry>
!     <entry><filename class="headerfile">array</filename></entry>
!     <entry><classname>__gnu_debug::array</classname></entry>
!     <entry><filename class="headerfile">&lt;debug/array&gt;</filename></entry>
!   </row>
!   <row>
!     <entry><classname>std::forward_list</classname></entry>
!     <entry><filename class="headerfile">forward_list</filename></entry>
!     <entry><classname>__gnu_debug::forward_list</classname></entry>
!     <entry><filename class="headerfile">&lt;debug/forward_list&gt;</filename></entry>
!   </row>
!   <row>
      <entry><classname>std::unordered_map</classname></entry>
      <entry><filename class="headerfile">unordered_map</filename></entry>
      <entry><classname>__gnu_debug::unordered_map</classname></entry>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/xml/manual/extensions.xml gcc-6.5.0/libstdc++-v3/doc/xml/manual/extensions.xml
*** gcc-6.4.0/libstdc++-v3/doc/xml/manual/extensions.xml	Mon Apr 27 12:30:26 2015
--- gcc-6.5.0/libstdc++-v3/doc/xml/manual/extensions.xml	Wed Sep 13 10:10:04 2017
*************** get_temporary_buffer(5, (int*)0);
*** 502,508 ****
      <quote>demangling.</quote>
    </para>
    <para>
!     If you have read the <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01115.html">source
      documentation for <code>namespace abi</code></link> then you are
      aware of the cross-vendor C++ ABI in use by GCC.  One of the
      exposed functions is used for demangling,
--- 502,508 ----
      <quote>demangling.</quote>
    </para>
    <para>
!     If you have read the <link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html">source
      documentation for <code>namespace abi</code></link> then you are
      aware of the cross-vendor C++ ABI in use by GCC.  One of the
      exposed functions is used for demangling,
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/xml/manual/status_cxx1998.xml gcc-6.5.0/libstdc++-v3/doc/xml/manual/status_cxx1998.xml
*** gcc-6.4.0/libstdc++-v3/doc/xml/manual/status_cxx1998.xml	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/xml/manual/status_cxx1998.xml	Fri Oct 12 11:37:51 2018
*************** This status table is based on the table
*** 18,25 ****
  </para>
  
  <para>
! This page describes the C++ support in mainline GCC SVN, not in any
! particular release.
  </para>
  
  <!-- Status is Yes or No, Broken/Partial-->
--- 18,24 ----
  </para>
  
  <para>
! This page describes the C++ support in the GCC 6 series.
  </para>
  
  <!-- Status is Yes or No, Broken/Partial-->
*************** particular release.
*** 1130,1135 ****
--- 1129,1138 ----
        implementation will be described under
        <link linkend="std.localization.locales.locale">Localization</link>.
     </para>
+    <para><emphasis>[23.*]</emphasis> All of the containers in this clause
+      define <type>size_type</type> as <type>std::size_t</type> and
+      <type>difference_type</type> as <type>std::ptrdiff_t</type>.
+    </para>
     <para><emphasis>[26.2.8]/9</emphasis> I have no idea what
        <code>complex&lt;T&gt;</code>'s <code>pow(0,0)</code> returns.
     </para>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/xml/manual/status_cxxtr1.xml gcc-6.5.0/libstdc++-v3/doc/xml/manual/status_cxxtr1.xml
*** gcc-6.4.0/libstdc++-v3/doc/xml/manual/status_cxxtr1.xml	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/xml/manual/status_cxxtr1.xml	Wed Oct 25 14:16:26 2017
*************** In this implementation the header names
*** 22,29 ****
  </para>
  
  <para>
! This page describes the TR1 support in mainline GCC SVN, not in any particular
! release.
  </para>
  
  <!-- Status is Yes or No, Broken/Partial-->
--- 22,28 ----
  </para>
  
  <para>
! This page describes the TR1 support in the GCC 6 series.
  </para>
  
  <!-- Status is Yes or No, Broken/Partial-->
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/xml/manual/status_cxxtr24733.xml gcc-6.5.0/libstdc++-v3/doc/xml/manual/status_cxxtr24733.xml
*** gcc-6.4.0/libstdc++-v3/doc/xml/manual/status_cxxtr24733.xml	Mon Jun  9 14:47:17 2014
--- gcc-6.5.0/libstdc++-v3/doc/xml/manual/status_cxxtr24733.xml	Wed Oct 25 14:16:26 2017
*************** decimal floating-point arithmetic
*** 16,23 ****
  </para>
  
  <para>
! This page describes the TR 24733 support in mainline GCC SVN, not in any
! particular release.
  </para>
  
  <!-- Status is Yes or No, Broken/Partial-->
--- 16,22 ----
  </para>
  
  <para>
! This page describes the TR 24733 support in the GCC 6 series.
  </para>
  
  <!-- Status is Yes or No, Broken/Partial-->
diff -Nrcpad gcc-6.4.0/libstdc++-v3/doc/xml/manual/using.xml gcc-6.5.0/libstdc++-v3/doc/xml/manual/using.xml
*** gcc-6.4.0/libstdc++-v3/doc/xml/manual/using.xml	Thu Dec  8 12:41:07 2016
--- gcc-6.5.0/libstdc++-v3/doc/xml/manual/using.xml	Wed Aug  8 15:40:32 2018
***************
*** 126,132 ****
       must be available to all hosted implementations.  Actually, the
       word "files" is a misnomer, since the contents of the
       headers don't necessarily have to be in any kind of external
!      file.  The only rule is that when one <code>#include</code>'s a
       header, the contents of that header become available, no matter
       how.
     </para>
--- 126,132 ----
       must be available to all hosted implementations.  Actually, the
       word "files" is a misnomer, since the contents of the
       headers don't necessarily have to be in any kind of external
!      file.  The only rule is that when one <code>#include</code>s a
       header, the contents of that header become available, no matter
       how.
     </para>
***************
*** 138,153 ****
     <para>
       There are two main types of include files: header files related
       to a specific version of the ISO C++ standard (called Standard
!      Headers), and all others (TR1, C++ ABI, and Extensions).
     </para>
  
     <para>
!      Two dialects of standard headers are supported, corresponding to
!      the 1998 standard as updated for 2003, and the current 2011 standard.
     </para>
  
     <para>
!      C++98/03 include files. These are available in the default compilation mode, i.e. <code>-std=c++98</code> or <code>-std=gnu++98</code>.
     </para>
  
  <table frame="all" xml:id="table.cxx98_headers">
--- 138,161 ----
     <para>
       There are two main types of include files: header files related
       to a specific version of the ISO C++ standard (called Standard
!      Headers), and all others (TS, TR1, C++ ABI, and Extensions).
     </para>
  
     <para>
!      Multiple dialects of standard headers are supported, corresponding to
!      the 1998 standard as updated for 2003, the 2011 standard, the 2014
!      standard, and so on.
     </para>
  
     <para>
!      <xref linkend="table.cxx98_headers"/> and
!      <xref linkend="table.cxx98_cheaders"/> and
!      <xref linkend="table.cxx98_deprheaders"/>
!      show the C++98/03 include files.
!      These are available in the C++98 compilation mode,
!      i.e. <code>-std=c++98</code> or <code>-std=gnu++98</code>.
!      Unless specified otherwise below, they are also available in later modes
!      (C++11, C++14 etc).
     </para>
  
  <table frame="all" xml:id="table.cxx98_headers">
***************
*** 205,210 ****
--- 213,219 ----
  <row>
  <entry><filename class="headerfile">valarray</filename></entry>
  <entry><filename class="headerfile">vector</filename></entry>
+ <entry namest="c3" nameend="c5"/>
  </row>
  </tbody>
  </tgroup>
***************
*** 246,259 ****
  <entry><filename class="headerfile">ctime</filename></entry>
  <entry><filename class="headerfile">cwchar</filename></entry>
  <entry><filename class="headerfile">cwctype</filename></entry>
  </row>
  </tbody>
  </tgroup>
  </table>
  
  <para>
! C++11 include files. These are only available in C++11 compilation
  mode, i.e. <literal>-std=c++11</literal> or <literal>-std=gnu++11</literal>.
  </para>
  
  <para/>
--- 255,292 ----
  <entry><filename class="headerfile">ctime</filename></entry>
  <entry><filename class="headerfile">cwchar</filename></entry>
  <entry><filename class="headerfile">cwctype</filename></entry>
+ <entry namest="c4" nameend="c5"/>
  </row>
  </tbody>
  </tgroup>
  </table>
  
  <para>
!   The following header is deprecated
!   and might be removed from a future C++ standard.
! </para>
! 
! <table frame="all" xml:id="table.cxx98_deprheaders">
! <title>C++ 1998 Deprecated Library Header</title>
! 
! <tgroup cols="1" align="left" colsep="1" rowsep="1">
! <colspec colname="c1"/>
! <tbody>
! <row>
! <entry><filename class="headerfile">strstream</filename></entry>
! </row>
! </tbody>
! </tgroup>
! </table>
! 
! <para>
! <xref linkend="table.cxx11_headers"/> and
! <xref linkend="table.cxx11_cheaders"/> show the C++11 include files.
! These are available in C++11 compilation
  mode, i.e. <literal>-std=c++11</literal> or <literal>-std=gnu++11</literal>.
+ Including these headers in C++98/03 mode may result in compilation errors.
+ Unless specified otherwise below, they are also available in later modes
+ (C++14 etc).
  </para>
  
  <para/>
*************** mode, i.e. <literal>-std=c++11</literal>
*** 269,341 ****
  <tbody>
  
  <row>
- <entry><filename class="headerfile">algorithm</filename></entry>
  <entry><filename class="headerfile">array</filename></entry>
! <entry><filename class="headerfile">bitset</filename></entry>
  <entry><filename class="headerfile">chrono</filename></entry>
! <entry><filename class="headerfile">complex</filename></entry>
! </row>
! <row>
  <entry><filename class="headerfile">condition_variable</filename></entry>
- <entry><filename class="headerfile">deque</filename></entry>
- <entry><filename class="headerfile">exception</filename></entry>
- <entry><filename class="headerfile">forward_list</filename></entry>
- <entry><filename class="headerfile">fstream</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">functional</filename></entry>
  <entry><filename class="headerfile">future</filename></entry>
  <entry><filename class="headerfile">initalizer_list</filename></entry>
- <entry><filename class="headerfile">iomanip</filename></entry>
- <entry><filename class="headerfile">ios</filename></entry>
- </row>
- <row>
- <entry><filename class="headerfile">iosfwd</filename></entry>
- <entry><filename class="headerfile">iostream</filename></entry>
- <entry><filename class="headerfile">istream</filename></entry>
- <entry><filename class="headerfile">iterator</filename></entry>
- <entry><filename class="headerfile">limits</filename></entry>
- </row>
- <row>
- <entry><filename class="headerfile">list</filename></entry>
- <entry><filename class="headerfile">locale</filename></entry>
- <entry><filename class="headerfile">map</filename></entry>
- <entry><filename class="headerfile">memory</filename></entry>
  <entry><filename class="headerfile">mutex</filename></entry>
- </row>
- <row>
- <entry><filename class="headerfile">new</filename></entry>
- <entry><filename class="headerfile">numeric</filename></entry>
- <entry><filename class="headerfile">ostream</filename></entry>
- <entry><filename class="headerfile">queue</filename></entry>
  <entry><filename class="headerfile">random</filename></entry>
  </row>
  <row>
  <entry><filename class="headerfile">ratio</filename></entry>
  <entry><filename class="headerfile">regex</filename></entry>
! <entry><filename class="headerfile">set</filename></entry>
! <entry><filename class="headerfile">sstream</filename></entry>
! <entry><filename class="headerfile">stack</filename></entry>
! </row>
! <row>
! <entry><filename class="headerfile">stdexcept</filename></entry>
! <entry><filename class="headerfile">streambuf</filename></entry>
! <entry><filename class="headerfile">string</filename></entry>
  <entry><filename class="headerfile">system_error</filename></entry>
  <entry><filename class="headerfile">thread</filename></entry>
  </row>
  <row>
  <entry><filename class="headerfile">tuple</filename></entry>
  <entry><filename class="headerfile">type_traits</filename></entry>
- <entry><filename class="headerfile">typeinfo</filename></entry>
  <entry><filename class="headerfile">unordered_map</filename></entry>
  <entry><filename class="headerfile">unordered_set</filename></entry>
  </row>
- <row>
- <entry><filename class="headerfile">utility</filename></entry>
- <entry><filename class="headerfile">valarray</filename></entry>
- <entry><filename class="headerfile">vector</filename></entry>
- </row>
  
  </tbody>
  </tgroup>
--- 302,334 ----
  <tbody>
  
  <row>
  <entry><filename class="headerfile">array</filename></entry>
! <entry><filename class="headerfile">atomic</filename></entry>
  <entry><filename class="headerfile">chrono</filename></entry>
! <entry><filename class="headerfile">codecvt</filename></entry>
  <entry><filename class="headerfile">condition_variable</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">forward_list</filename></entry>
  <entry><filename class="headerfile">future</filename></entry>
  <entry><filename class="headerfile">initalizer_list</filename></entry>
  <entry><filename class="headerfile">mutex</filename></entry>
  <entry><filename class="headerfile">random</filename></entry>
  </row>
  <row>
  <entry><filename class="headerfile">ratio</filename></entry>
  <entry><filename class="headerfile">regex</filename></entry>
! <entry><filename class="headerfile">scoped_allocator</filename></entry>
  <entry><filename class="headerfile">system_error</filename></entry>
  <entry><filename class="headerfile">thread</filename></entry>
  </row>
  <row>
  <entry><filename class="headerfile">tuple</filename></entry>
+ <entry><filename class="headerfile">typeindex</filename></entry>
  <entry><filename class="headerfile">type_traits</filename></entry>
  <entry><filename class="headerfile">unordered_map</filename></entry>
  <entry><filename class="headerfile">unordered_set</filename></entry>
  </row>
  
  </tbody>
  </tgroup>
*************** mode, i.e. <literal>-std=c++11</literal>
*** 354,392 ****
  <colspec colname="c5"/>
  <tbody>
  <row>
- <entry><filename class="headerfile">cassert</filename></entry>
  <entry><filename class="headerfile">ccomplex</filename></entry>
- <entry><filename class="headerfile">cctype</filename></entry>
- <entry><filename class="headerfile">cerrno</filename></entry>
  <entry><filename class="headerfile">cfenv</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">cfloat</filename></entry>
! <entry><filename class="headerfile">cinttypes</filename></entry>
! <entry><filename class="headerfile">ciso646</filename></entry>
! <entry><filename class="headerfile">climits</filename></entry>
! <entry><filename class="headerfile">clocale</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">cmath</filename></entry>
! <entry><filename class="headerfile">csetjmp</filename></entry>
! <entry><filename class="headerfile">csignal</filename></entry>
! <entry><filename class="headerfile">cstdarg</filename></entry>
! <entry><filename class="headerfile">cstdbool</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">cstddef</filename></entry>
! <entry><filename class="headerfile">cstdint</filename></entry>
! <entry><filename class="headerfile">cstdlib</filename></entry>
! <entry><filename class="headerfile">cstdio</filename></entry>
! <entry><filename class="headerfile">cstring</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">ctgmath</filename></entry>
! <entry><filename class="headerfile">ctime</filename></entry>
! <entry><filename class="headerfile">cuchar</filename></entry>
! <entry><filename class="headerfile">cwchar</filename></entry>
! <entry><filename class="headerfile">cwctype</filename></entry>
  </row>
  </tbody>
  </tgroup>
--- 347,476 ----
  <colspec colname="c5"/>
  <tbody>
  <row>
  <entry><filename class="headerfile">ccomplex</filename></entry>
  <entry><filename class="headerfile">cfenv</filename></entry>
+ <entry><filename class="headerfile">cinttypes</filename></entry>
+ <entry><filename class="headerfile">cstdalign</filename></entry>
+ <entry><filename class="headerfile">cstdbool</filename></entry>
  </row>
  <row>
! <entry><filename class="headerfile">cstdint</filename></entry>
! <entry><filename class="headerfile">ctgmath</filename></entry>
! <entry><filename class="headerfile">cuchar</filename></entry>
! <entry namest="c4" nameend="c5"/>
  </row>
+ </tbody>
+ </tgroup>
+ </table>
+ 
+ <para>
+ <xref linkend="table.cxx14_headers"/> shows the C++14 include file.
+ This is available in C++14 compilation
+ mode, i.e. <literal>-std=c++14</literal> or <literal>-std=gnu++14</literal>.
+ Including this header in C++98/03 mode or C++11 will not result in
+ compilation errors, but will not define anything.
+ Unless specified otherwise below, it is also available in later modes
+ (C++17 etc).
+ </para>
+ 
+ <para/>
+ <table frame="all" xml:id="table.cxx14_headers">
+ <title>C++ 2014 Library Header</title>
+ 
+ <tgroup cols="1" align="left" colsep="1" rowsep="1">
+ <colspec colname="c1"/>
+ <tbody>
  <row>
! <entry><filename class="headerfile">shared_mutex</filename></entry>
  </row>
+ </tbody>
+ </tgroup>
+ </table>
+ 
+ <para>
+ <xref linkend="table.filesystemts_headers"/>,
+ shows the additional include file define by the
+ File System Technical Specification, ISO/IEC TS 18822.
+ This is available in C++11 and later compilation modes.
+ Including this header in earlier modes will not result in
+ compilation errors, but will not define anything.
+ </para>
+ 
+ <para/>
+ <table frame="all" xml:id="table.filesystemts_headers">
+ <title>File System TS Header</title>
+ 
+ <tgroup cols="1" align="left" colsep="1" rowsep="1">
+ <colspec colname="c1"/>
+ <tbody>
  <row>
! <entry><filename class="headerfile">experimental/filesystem</filename></entry>
  </row>
+ </tbody>
+ </tgroup>
+ </table>
+ 
+ 
+ <para>
+ <xref linkend="table.libfundts_headers"/>,
+ shows the additional include files define by the C++ Extensions for 
+ Library Fundamentals Technical Specification, ISO/IEC TS 19568.
+ These are available in C++14 and later compilation modes.
+ Including these headers in earlier modes will not result in
+ compilation errors, but will not define anything.
+ </para>
+ 
+ <para/>
+ <table frame="all" xml:id="table.libfundts_headers">
+ <title>Library Fundamentals TS Headers</title>
+ 
+ <tgroup cols="5" align="left" colsep="1" rowsep="1">
+ <colspec colname="c1"/>
+ <colspec colname="c2"/>
+ <colspec colname="c3"/>
+ <colspec colname="c4"/>
+ <colspec colname="c5"/>
+ <tbody>
  <row>
! <entry><filename class="headerfile">experimental/algorithm</filename></entry>
! <entry><filename class="headerfile">experimental/any</filename></entry>
! <entry><filename class="headerfile">experimental/array</filename></entry>
! <entry><filename class="headerfile">experimental/chrono</filename></entry>
! <entry><filename class="headerfile">experimental/deque</filename></entry>
! </row>
! <row>
! <entry><filename class="headerfile">experimental/forward_list</filename></entry>
! <entry><filename class="headerfile">experimental/functional</filename></entry>
! <entry><filename class="headerfile">experimental/iterator</filename></entry>
! <entry><filename class="headerfile">experimental/list</filename></entry>
! <entry><filename class="headerfile">experimental/map</filename></entry>
! </row>
! <row>
! <entry><filename class="headerfile">experimental/memory</filename></entry>
! <entry><filename class="headerfile">experimental/memory_resource</filename></entry>
! <entry><filename class="headerfile">experimental/numeric</filename></entry>
! <entry><filename class="headerfile">experimental/optional</filename></entry>
! <entry><filename class="headerfile">experimental/propagate_const</filename></entry>
! </row>
! <row>
! <entry><filename class="headerfile">experimental/random</filename></entry>
! <entry><filename class="headerfile">experimental/ratio</filename></entry>
! <entry><filename class="headerfile">experimental/regex</filename></entry>
! <entry><filename class="headerfile">experimental/set</filename></entry>
! <entry><filename class="headerfile">experimental/string</filename></entry>
! </row>
! <row>
! <entry><filename class="headerfile">experimental/string_view</filename></entry>
! <entry><filename class="headerfile">experimental/system_error</filename></entry>
! <entry><filename class="headerfile">experimental/tuple</filename></entry>
! <entry><filename class="headerfile">experimental/type_traits</filename></entry>
! <entry><filename class="headerfile">experimental/unordered_map</filename></entry>
! </row>
! <row>
! <entry><filename class="headerfile">experimental/unordered_set</filename></entry>
! <entry><filename class="headerfile">experimental/utility</filename></entry>
! <entry><filename class="headerfile">experimental/vector</filename></entry>
! <entry namest="c4" nameend="c5"/>
  </row>
  </tbody>
  </tgroup>
*************** mode, i.e. <literal>-std=c++11</literal>
*** 424,429 ****
--- 508,514 ----
  </row>
  <row>
  <entry><filename class="headerfile">tr1/utility</filename></entry>
+ <entry namest="c2" nameend="c5"/>
  </row>
  
  </tbody>
*************** compiler supports scalar decimal floatin
*** 564,569 ****
--- 649,655 ----
  </row>
  <row>
  <entry><filename class="headerfile">ext/vstring.h</filename></entry>
+ <entry namest="c2" nameend="c5"/>
  </row>
  
  </tbody>
*************** compiler supports scalar decimal floatin
*** 584,601 ****
  <tbody>
  
  <row>
  <entry><filename class="headerfile">debug/bitset</filename></entry>
  <entry><filename class="headerfile">debug/deque</filename></entry>
  <entry><filename class="headerfile">debug/list</filename></entry>
- <entry><filename class="headerfile">debug/map</filename></entry>
- <entry><filename class="headerfile">debug/set</filename></entry>
  </row>
- 
  <row>
  <entry><filename class="headerfile">debug/string</filename></entry>
  <entry><filename class="headerfile">debug/unordered_map</filename></entry>
  <entry><filename class="headerfile">debug/unordered_set</filename></entry>
  <entry><filename class="headerfile">debug/vector</filename></entry>
  </row>
  
  </tbody>
--- 670,691 ----
  <tbody>
  
  <row>
+ <entry><filename class="headerfile">debug/array</filename></entry>
  <entry><filename class="headerfile">debug/bitset</filename></entry>
  <entry><filename class="headerfile">debug/deque</filename></entry>
+ <entry><filename class="headerfile">debug/forward_list</filename></entry>
  <entry><filename class="headerfile">debug/list</filename></entry>
  </row>
  <row>
+ <entry><filename class="headerfile">debug/map</filename></entry>
+ <entry><filename class="headerfile">debug/set</filename></entry>
  <entry><filename class="headerfile">debug/string</filename></entry>
  <entry><filename class="headerfile">debug/unordered_map</filename></entry>
  <entry><filename class="headerfile">debug/unordered_set</filename></entry>
+ </row>
+ <row>
  <entry><filename class="headerfile">debug/vector</filename></entry>
+ <entry namest="c2" nameend="c5"/>
  </row>
  
  </tbody>
*************** g++ -Winvalid-pch -I. -include stdc++.h
*** 999,1005 ****
  </para>
  
  <para> The <symbol>_GLIBCXX_USE_CXX11_ABI</symbol> macro (see
! <xref linkend="manual.intro.using.macros"/>) controls whether
    the declarations in the library headers use the old or new ABI.
    So the decision of which ABI to use can be made separately for each
    source file being compiled.
--- 1089,1095 ----
  </para>
  
  <para> The <symbol>_GLIBCXX_USE_CXX11_ABI</symbol> macro (see
!   <xref linkend="manual.intro.using.macros"/>) controls whether
    the declarations in the library headers use the old or new ABI.
    So the decision of which ABI to use can be made separately for each
    source file being compiled.
*************** g++ -Winvalid-pch -I. -include stdc++.h
*** 1034,1045 ****
  </para>
  
  <para> Although the standard exception types defined in
!   <filename class="headerfile">&lt;stdexcept&gt;</filename> use strings, they
    are not defined twice, so that a <classname>std::out_of_range</classname>
    exception thrown in one file can always be caught by a suitable handler in
    another file, even if the two files are compiled with different ABIs.
  </para>
  
  <section xml:id="manual.intro.using.abi.trouble" xreflabel="Dual ABI Troubleshooting"><info><title>Troubleshooting</title></info>
  
  <para> If you get linker errors about undefined references to symbols
--- 1124,1162 ----
  </para>
  
  <para> Although the standard exception types defined in
!   <filename class="headerfile">&lt;stdexcept&gt;</filename> use strings, most
    are not defined twice, so that a <classname>std::out_of_range</classname>
    exception thrown in one file can always be caught by a suitable handler in
    another file, even if the two files are compiled with different ABIs.
  </para>
  
+ <para> One exception type does change when using the new ABI, namely
+   <classname>std::ios_base::failure</classname>.
+   This is necessary because the 2011 standard changed its base class from
+   <classname>std::exception</classname> to
+   <classname>std::system_error</classname>, which causes its layout to change.
+   Exceptions due to iostream errors are thrown by a function inside
+   <filename class="libraryfile">libstdc++.so</filename>, so whether the thrown
+   exception uses the old <classname>std::ios_base::failure</classname> type
+   or the new one depends on the ABI that was active when
+   <filename class="libraryfile">libstdc++.so</filename> was built,
+   <emphasis>not</emphasis> the ABI active in the user code that is using
+   iostreams.
+   This means that for a given build of GCC the type thrown is fixed.
+   In current releases the library throws a special type that can be caught
+   by handlers for either the old or new type,
+   but for GCC 7.1, 7.2 and 7.3 the library throws the new
+   <classname>std::ios_base::failure</classname> type,
+   and for GCC 5.x and 6.x the library throws the old type.
+   Catch handlers of type <classname>std::ios_base::failure</classname>
+   will only catch the exceptions if using a newer release,
+   or if the handler is compiled with the same ABI as the type thrown by
+   the library.
+   Handlers for <classname>std::exception</classname> will always catch
+   iostreams exceptions, because the old and new type both inherit from
+   <classname>std::exception</classname>.
+ </para>
+ 
  <section xml:id="manual.intro.using.abi.trouble" xreflabel="Dual ABI Troubleshooting"><info><title>Troubleshooting</title></info>
  
  <para> If you get linker errors about undefined references to symbols
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/Makefile.am gcc-6.5.0/libstdc++-v3/include/Makefile.am
*** gcc-6.4.0/libstdc++-v3/include/Makefile.am	Mon Oct  3 14:36:13 2016
--- gcc-6.5.0/libstdc++-v3/include/Makefile.am	Mon Feb 19 17:02:38 2018
*************** $(decimal_headers): ; @:
*** 1459,1461 ****
--- 1459,1466 ----
  $(ext_headers): ; @:
  $(experimental_headers): ; @:
  $(experimental_bits_headers): ; @:
+ 
+ if INCLUDE_DIR_NOTPARALLEL
+ # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
+ .NOTPARALLEL:
+ endif
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/Makefile.in gcc-6.5.0/libstdc++-v3/include/Makefile.in
*** gcc-6.4.0/libstdc++-v3/include/Makefile.in	Mon Oct  3 14:36:13 2016
--- gcc-6.5.0/libstdc++-v3/include/Makefile.in	Mon Feb 19 17:02:38 2018
*************** $(ext_headers): ; @:
*** 1879,1884 ****
--- 1879,1887 ----
  $(experimental_headers): ; @:
  $(experimental_bits_headers): ; @:
  
+ # See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
+ @INCLUDE_DIR_NOTPARALLEL_TRUE@.NOTPARALLEL:
+ 
  # Tell versions [3.59,3.63) of GNU make to not export all variables.
  # Otherwise a system limit (for SysV at least) may be exceeded.
  .NOEXPORT:
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/basic_ios.h gcc-6.5.0/libstdc++-v3/include/bits/basic_ios.h
*** gcc-6.4.0/libstdc++-v3/include/bits/basic_ios.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/basic_ios.h	Mon Sep  4 16:52:25 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 157,164 ****
        setstate(iostate __state)
        { this->clear(this->rdstate() | __state); }
  
!       // Flip the internal state on for the proper state bits, then re
!       // throws the propagated exception if bit also set in
        // exceptions().
        void
        _M_setstate(iostate __state)
--- 157,164 ----
        setstate(iostate __state)
        { this->clear(this->rdstate() | __state); }
  
!       // Flip the internal state on for the proper state bits, then
!       // rethrows the propagated exception if bit also set in
        // exceptions().
        void
        _M_setstate(iostate __state)
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/basic_string.h gcc-6.5.0/libstdc++-v3/include/bits/basic_string.h
*** gcc-6.4.0/libstdc++-v3/include/bits/basic_string.h	Wed Feb  1 12:12:28 2017
--- gcc-6.5.0/libstdc++-v3/include/bits/basic_string.h	Thu Oct 25 16:42:01 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 645,664 ****
  	// Replace allocator if POCMA is true.
  	std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator());
  
! 	if (!__str._M_is_local()
! 	    && (_Alloc_traits::_S_propagate_on_move_assign()
! 	      || _Alloc_traits::_S_always_equal()))
  	  {
  	    pointer __data = nullptr;
  	    size_type __capacity;
  	    if (!_M_is_local())
  	      {
  		if (_Alloc_traits::_S_always_equal())
  		  {
  		    __data = _M_data();
  		    __capacity = _M_allocated_capacity;
  		  }
! 		else
  		  _M_destroy(_M_allocated_capacity);
  	      }
  
--- 645,673 ----
  	// Replace allocator if POCMA is true.
  	std::__alloc_on_move(_M_get_allocator(), __str._M_get_allocator());
  
! 	if (__str._M_is_local())
! 	  {
! 	    // We've always got room for a short string, just copy it.
! 	    if (__str.size())
! 	      this->_S_copy(_M_data(), __str._M_data(), __str.size());
! 	    _M_set_length(__str.size());
! 	  }
! 	else if (_Alloc_traits::_S_propagate_on_move_assign()
! 	    || _Alloc_traits::_S_always_equal()
! 	    || _M_get_allocator() == __str._M_get_allocator())
  	  {
+ 	    // Just move the allocated pointer, our allocator can free it.
  	    pointer __data = nullptr;
  	    size_type __capacity;
  	    if (!_M_is_local())
  	      {
  		if (_Alloc_traits::_S_always_equal())
  		  {
+ 		    // __str can reuse our existing storage.
  		    __data = _M_data();
  		    __capacity = _M_allocated_capacity;
  		  }
! 		else // __str can't use it, so free it.
  		  _M_destroy(_M_allocated_capacity);
  	      }
  
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 673,680 ****
  	    else
  	      __str._M_data(__str._M_local_buf);
  	  }
! 	else
! 	    assign(__str);
  	__str.clear();
  	return *this;
        }
--- 682,689 ----
  	    else
  	      __str._M_data(__str._M_local_buf);
  	  }
! 	else // Need to do a deep copy
! 	  assign(__str);
  	__str.clear();
  	return *this;
        }
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 2543,2549 ****
        int
        compare(size_type __pos, size_type __n1, const _CharT* __s,
  	      size_type __n2) const;
!   };
  _GLIBCXX_END_NAMESPACE_CXX11
  #else  // !_GLIBCXX_USE_CXX11_ABI
    // Reference-counted COW string implentation
--- 2552,2561 ----
        int
        compare(size_type __pos, size_type __n1, const _CharT* __s,
  	      size_type __n2) const;
! 
!       // Allow basic_stringbuf::__xfer_bufptrs to call _M_length:
!       template<typename, typename, typename> friend class basic_stringbuf;
!     };
  _GLIBCXX_END_NAMESPACE_CXX11
  #else  // !_GLIBCXX_USE_CXX11_ABI
    // Reference-counted COW string implentation
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/fstream.tcc gcc-6.5.0/libstdc++-v3/include/bits/fstream.tcc
*** gcc-6.4.0/libstdc++-v3/include/bits/fstream.tcc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/fstream.tcc	Mon Oct 23 17:47:10 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 699,705 ****
   
   	   if (__n == 0)
   	     {
!  	       _M_set_buffer(0);
   	       _M_reading = true;
   	     }
   	   else if (__len == 0)
--- 699,705 ----
   
   	   if (__n == 0)
   	     {
! 	       // Set _M_reading. Buffer is already in initial 'read' mode.
   	       _M_reading = true;
   	     }
   	   else if (__len == 0)
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/hashtable.h gcc-6.5.0/libstdc++-v3/include/bits/hashtable.h
*** gcc-6.4.0/libstdc++-v3/include/bits/hashtable.h	Thu Apr 14 16:23:06 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/hashtable.h	Mon Sep  4 16:17:07 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 836,852 ****
  	    _M_bucket_count = __bkt_count;
  	  }
  
! 	__try
! 	  {
! 	    for (; __f != __l; ++__f)
! 	      this->insert(*__f);
! 	  }
! 	__catch(...)
! 	  {
! 	    clear();
! 	    _M_deallocate_buckets();
! 	    __throw_exception_again;
! 	  }
        }
  
    template<typename _Key, typename _Value,
--- 836,843 ----
  	    _M_bucket_count = __bkt_count;
  	  }
  
! 	for (; __f != __l; ++__f)
! 	  this->insert(*__f);
        }
  
    template<typename _Key, typename _Value,
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/istream.tcc gcc-6.5.0/libstdc++-v3/include/bits/istream.tcc
*** gcc-6.4.0/libstdc++-v3/include/bits/istream.tcc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/istream.tcc	Mon Sep  4 16:52:25 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 48,75 ****
      {
        ios_base::iostate __err = ios_base::goodbit;
        if (__in.good())
! 	{
! 	  if (__in.tie())
! 	    __in.tie()->flush();
! 	  if (!__noskip && bool(__in.flags() & ios_base::skipws))
! 	    {
! 	      const __int_type __eof = traits_type::eof();
! 	      __streambuf_type* __sb = __in.rdbuf();
! 	      __int_type __c = __sb->sgetc();
  
! 	      const __ctype_type& __ct = __check_facet(__in._M_ctype);
! 	      while (!traits_type::eq_int_type(__c, __eof)
! 		     && __ct.is(ctype_base::space, 
! 				traits_type::to_char_type(__c)))
! 		__c = __sb->snextc();
  
! 	      // _GLIBCXX_RESOLVE_LIB_DEFECTS
! 	      // 195. Should basic_istream::sentry's constructor ever
! 	      // set eofbit?
! 	      if (traits_type::eq_int_type(__c, __eof))
! 		__err |= ios_base::eofbit;
! 	    }
! 	}
  
        if (__in.good() && __err == ios_base::goodbit)
  	_M_ok = true;
--- 48,83 ----
      {
        ios_base::iostate __err = ios_base::goodbit;
        if (__in.good())
! 	__try
! 	  {
! 	    if (__in.tie())
! 	      __in.tie()->flush();
! 	    if (!__noskip && bool(__in.flags() & ios_base::skipws))
! 	      {
! 		const __int_type __eof = traits_type::eof();
! 		__streambuf_type* __sb = __in.rdbuf();
! 		__int_type __c = __sb->sgetc();
  
! 		const __ctype_type& __ct = __check_facet(__in._M_ctype);
! 		while (!traits_type::eq_int_type(__c, __eof)
! 		       && __ct.is(ctype_base::space,
! 				  traits_type::to_char_type(__c)))
! 		  __c = __sb->snextc();
  
! 		// _GLIBCXX_RESOLVE_LIB_DEFECTS
! 		// 195. Should basic_istream::sentry's constructor ever
! 		// set eofbit?
! 		if (traits_type::eq_int_type(__c, __eof))
! 		  __err |= ios_base::eofbit;
! 	      }
! 	  }
! 	__catch(__cxxabiv1::__forced_unwind&)
! 	  {
! 	    __in._M_setstate(ios_base::badbit);
! 	    __throw_exception_again;
! 	  }
! 	__catch(...)
! 	  { __in._M_setstate(ios_base::badbit); }
  
        if (__in.good() && __err == ios_base::goodbit)
  	_M_ok = true;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/locale_conv.h gcc-6.5.0/libstdc++-v3/include/bits/locale_conv.h
*** gcc-6.4.0/libstdc++-v3/include/bits/locale_conv.h	Fri Jun 16 14:09:36 2017
--- gcc-6.5.0/libstdc++-v3/include/bits/locale_conv.h	Fri Jan  5 22:48:45 2018
*************** _GLIBCXX_END_NAMESPACE_CXX11
*** 431,437 ****
  	streamsize __nbytes = sizeof(_M_get_buf) - _M_unconv;
  	__nbytes = std::min(__nbytes, _M_buf->in_avail());
  	if (__nbytes < 1)
! 	  __nbytes == 1;
  	__nbytes = _M_buf->sgetn(_M_get_buf + _M_unconv, __nbytes);
  	if (__nbytes < 1)
  	  return false;
--- 431,437 ----
  	streamsize __nbytes = sizeof(_M_get_buf) - _M_unconv;
  	__nbytes = std::min(__nbytes, _M_buf->in_avail());
  	if (__nbytes < 1)
! 	  __nbytes = 1;
  	__nbytes = _M_buf->sgetn(_M_get_buf + _M_unconv, __nbytes);
  	if (__nbytes < 1)
  	  return false;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/parse_numbers.h gcc-6.5.0/libstdc++-v3/include/bits/parse_numbers.h
*** gcc-6.4.0/libstdc++-v3/include/bits/parse_numbers.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/parse_numbers.h	Fri Mar  2 23:52:06 2018
*************** namespace __parse_int
*** 197,202 ****
--- 197,209 ----
  		    "integer literal does not fit in unsigned long long");
      };
  
+   // Skip past digit separators:
+   template<unsigned _Base, unsigned long long _Pow, char _Dig, char..._Digs>
+     struct _Number_help<_Base, _Pow, '\'', _Dig, _Digs...>
+     : _Number_help<_Base, _Pow, _Dig, _Digs...>
+     { };
+ 
+   // Terminating case for recursion:
    template<unsigned _Base, unsigned long long _Pow, char _Dig>
      struct _Number_help<_Base, _Pow, _Dig>
      {
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/random.h gcc-6.5.0/libstdc++-v3/include/bits/random.h
*** gcc-6.4.0/libstdc++-v3/include/bits/random.h	Tue Apr 19 13:06:30 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/random.h	Mon Jan 29 14:44:48 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 2618,2624 ****
         */
        void
        param(const param_type& __param)
!       { _M_param = __param; }
  
        /**
         * @brief Returns the greatest lower bound value of the distribution.
--- 2618,2629 ----
         */
        void
        param(const param_type& __param)
!       {
! 	_M_param = __param;
! 	typedef typename std::gamma_distribution<result_type>::param_type
! 	  param_type;
! 	_M_gd.param(param_type{__param.n() / 2});
!       }
  
        /**
         * @brief Returns the greatest lower bound value of the distribution.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/regex.h gcc-6.5.0/libstdc++-v3/include/bits/regex.h
*** gcc-6.4.0/libstdc++-v3/include/bits/regex.h	Thu May 18 14:34:50 2017
--- gcc-6.5.0/libstdc++-v3/include/bits/regex.h	Fri Oct 12 11:37:46 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 785,790 ****
--- 785,830 ----
        _AutomatonPtr          _M_automaton;
      };
  
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::icase;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::nosubs;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::optimize;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::collate;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::ECMAScript;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::basic;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::extended;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::awk;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::grep;
+ 
+   template<typename _Ch, typename _Tr>
+     constexpr regex_constants::syntax_option_type
+     basic_regex<_Ch, _Tr>::egrep;
+ 
    /** @brief Standard regular expressions. */
    typedef basic_regex<char>    regex;
  
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 1751,1757 ****
         */
        const_iterator
        end() const
!       { return _Base_type::end() - 3; }
  
        /**
         * @brief Gets an iterator to one-past-the-end of the collection.
--- 1791,1797 ----
         */
        const_iterator
        end() const
!       { return _Base_type::end() - (empty() ? 0 : 3); }
  
        /**
         * @brief Gets an iterator to one-past-the-end of the collection.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/regex_automaton.h gcc-6.5.0/libstdc++-v3/include/bits/regex_automaton.h
*** gcc-6.4.0/libstdc++-v3/include/bits/regex_automaton.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/regex_automaton.h	Fri Oct 12 11:37:46 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 332,338 ****
  	    "Number of NFA states exceeds limit. Please use shorter regex "
  	    "string, or use smaller brace expression, or make "
  	    "_GLIBCXX_REGEX_STATE_LIMIT larger.");
! 	return this->size()-1;
        }
  
        // Eliminate dummy node in this NFA to make it compact.
--- 332,338 ----
  	    "Number of NFA states exceeds limit. Please use shorter regex "
  	    "string, or use smaller brace expression, or make "
  	    "_GLIBCXX_REGEX_STATE_LIMIT larger.");
! 	return this->size() - 1;
        }
  
        // Eliminate dummy node in this NFA to make it compact.
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/shared_ptr_base.h gcc-6.5.0/libstdc++-v3/include/bits/shared_ptr_base.h
*** gcc-6.4.0/libstdc++-v3/include/bits/shared_ptr_base.h	Thu Apr 14 16:23:06 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/shared_ptr_base.h	Mon Sep  4 16:52:15 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1082,1093 ****
  
        template<typename _Tp1>
  	bool
! 	owner_before(__shared_ptr<_Tp1, _Lp> const& __rhs) const
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
        template<typename _Tp1>
  	bool
! 	owner_before(__weak_ptr<_Tp1, _Lp> const& __rhs) const
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
  #if __cpp_rtti
--- 1082,1093 ----
  
        template<typename _Tp1>
  	bool
! 	owner_before(__shared_ptr<_Tp1, _Lp> const& __rhs) const noexcept
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
        template<typename _Tp1>
  	bool
! 	owner_before(__weak_ptr<_Tp1, _Lp> const& __rhs) const noexcept
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
  #if __cpp_rtti
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1444,1455 ****
  
        template<typename _Tp1>
  	bool
! 	owner_before(const __shared_ptr<_Tp1, _Lp>& __rhs) const
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
        template<typename _Tp1>
  	bool
! 	owner_before(const __weak_ptr<_Tp1, _Lp>& __rhs) const
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
        void
--- 1444,1455 ----
  
        template<typename _Tp1>
  	bool
! 	owner_before(const __shared_ptr<_Tp1, _Lp>& __rhs) const noexcept
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
        template<typename _Tp1>
  	bool
! 	owner_before(const __weak_ptr<_Tp1, _Lp>& __rhs) const noexcept
  	{ return _M_refcount._M_less(__rhs._M_refcount); }
  
        void
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1494,1508 ****
      struct _Sp_owner_less : public binary_function<_Tp, _Tp, bool>
      {
        bool
!       operator()(const _Tp& __lhs, const _Tp& __rhs) const
        { return __lhs.owner_before(__rhs); }
  
        bool
!       operator()(const _Tp& __lhs, const _Tp1& __rhs) const
        { return __lhs.owner_before(__rhs); }
  
        bool
!       operator()(const _Tp1& __lhs, const _Tp& __rhs) const
        { return __lhs.owner_before(__rhs); }
      };
  
--- 1494,1508 ----
      struct _Sp_owner_less : public binary_function<_Tp, _Tp, bool>
      {
        bool
!       operator()(const _Tp& __lhs, const _Tp& __rhs) const noexcept
        { return __lhs.owner_before(__rhs); }
  
        bool
!       operator()(const _Tp& __lhs, const _Tp1& __rhs) const noexcept
        { return __lhs.owner_before(__rhs); }
  
        bool
!       operator()(const _Tp1& __lhs, const _Tp& __rhs) const noexcept
        { return __lhs.owner_before(__rhs); }
      };
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/sstream.tcc gcc-6.5.0/libstdc++-v3/include/bits/sstream.tcc
*** gcc-6.4.0/libstdc++-v3/include/bits/sstream.tcc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/sstream.tcc	Mon Sep  4 16:16:58 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 88,93 ****
--- 88,112 ----
  	return traits_type::not_eof(__c);
  
        const __size_type __capacity = _M_string.capacity();
+ 
+ #if _GLIBCXX_USE_CXX11_ABI
+       if ((this->epptr() - this->pbase()) < __capacity)
+ 	{
+ 	  // There is additional capacity in _M_string that can be used.
+ 	  char_type* __base = const_cast<char_type*>(_M_string.data());
+ 	  _M_pbump(__base, __base + __capacity, this->pptr() - this->pbase());
+ 	  if (_M_mode & ios_base::in)
+ 	    {
+ 	      const __size_type __nget = this->gptr() - this->eback();
+ 	      const __size_type __eget = this->egptr() - this->eback();
+ 	      this->setg(__base, __base + __nget, __base + __eget + 1);
+ 	    }
+ 	  *this->pptr() = traits_type::to_char_type(__c);
+ 	  this->pbump(1);
+ 	  return __c;
+ 	}
+ #endif
+ 
        const __size_type __max_size = _M_string.max_size();
        const bool __testput = this->pptr() < this->epptr();
        if (__builtin_expect(!__testput && __capacity == __max_size, false))
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/stl_bvector.h gcc-6.5.0/libstdc++-v3/include/bits/stl_bvector.h
*** gcc-6.4.0/libstdc++-v3/include/bits/stl_bvector.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/stl_bvector.h	Wed Aug  8 15:40:47 2018
*************** template<typename _Alloc>
*** 1078,1086 ****
      void
      _M_initialize(size_type __n)
      {
!       _Bit_pointer __q = this->_M_allocate(__n);
!       this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
!       this->_M_impl._M_start = iterator(std::__addressof(*__q), 0);
        this->_M_impl._M_finish = this->_M_impl._M_start + difference_type(__n);
      }
  
--- 1078,1094 ----
      void
      _M_initialize(size_type __n)
      {
!       if (__n)
! 	{
! 	  _Bit_pointer __q = this->_M_allocate(__n);
! 	  this->_M_impl._M_end_of_storage = __q + _S_nword(__n);
! 	  this->_M_impl._M_start = iterator(std::__addressof(*__q), 0);
! 	}
!       else
! 	{
! 	  this->_M_impl._M_end_of_storage = _Bit_pointer();
! 	  this->_M_impl._M_start = iterator(0, 0);
! 	}
        this->_M_impl._M_finish = this->_M_impl._M_start + difference_type(__n);
      }
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/stl_iterator.h gcc-6.5.0/libstdc++-v3/include/bits/stl_iterator.h
*** gcc-6.4.0/libstdc++-v3/include/bits/stl_iterator.h	Tue Aug 23 12:08:09 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/stl_iterator.h	Wed Aug  8 15:40:21 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 118,123 ****
--- 118,124 ----
        */
        // _GLIBCXX_RESOLVE_LIB_DEFECTS
        // 235 No specification of default ctor for reverse_iterator
+       // 1012. reverse_iterator default ctor should value initialize
        reverse_iterator() : current() { }
  
        /**
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 169,177 ****
         *
         *  This requires that @c --current is dereferenceable.
        */
        pointer
        operator->() const
!       { return &(operator*()); }
  
        /**
         *  @return  @c *this
--- 170,180 ----
         *
         *  This requires that @c --current is dereferenceable.
        */
+       // _GLIBCXX_RESOLVE_LIB_DEFECTS
+       // 2188. Reverse iterator does not fully support targets that overload &
        pointer
        operator->() const
!       { return std::__addressof(operator*()); }
  
        /**
         *  @return  @c *this
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/stl_pair.h gcc-6.5.0/libstdc++-v3/include/bits/stl_pair.h
*** gcc-6.4.0/libstdc++-v3/include/bits/stl_pair.h	Mon Apr  3 21:20:23 2017
--- gcc-6.5.0/libstdc++-v3/include/bits/stl_pair.h	Mon Oct 15 11:52:48 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 181,188 ****
    struct __wrap_nonesuch : std::__nonesuch {
      explicit __wrap_nonesuch(const __nonesuch&) = delete;
    };
!   
! #endif
  
   /**
     *  @brief Struct holding two objects of arbitrary type.
--- 181,198 ----
    struct __wrap_nonesuch : std::__nonesuch {
      explicit __wrap_nonesuch(const __nonesuch&) = delete;
    };
! #endif // C++11
! 
!   class __pair_base
!   {
! #if __cplusplus >= 201103L
!     template<typename _T1, typename _T2> friend struct pair;
!     __pair_base() = default;
!     ~__pair_base() = default;
!     __pair_base(const __pair_base&) = default;
!     __pair_base& operator=(const __pair_base&) = delete;
! #endif // C++11
!   };
  
   /**
     *  @brief Struct holding two objects of arbitrary type.
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 192,197 ****
--- 202,208 ----
     */
    template<typename _T1, typename _T2>
      struct pair
+     : private __pair_base
      {
        typedef _T1 first_type;    /// @c first_type is the first bound type
        typedef _T2 second_type;   /// @c second_type is the second bound type
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 372,388 ****
  
        pair&
        operator=(typename conditional<
- 		__not_<__and_<is_copy_assignable<_T1>,
- 		              is_copy_assignable<_T2>>>::value,
- 		const pair&, const __wrap_nonesuch&>::type __p) = delete;
- 
-       pair&
-       operator=(typename conditional<
  		__and_<is_move_assignable<_T1>,
  		       is_move_assignable<_T2>>::value,
  		pair&&, __wrap_nonesuch&&>::type __p)
        noexcept(__and_<is_nothrow_move_assignable<_T1>,
! 	              is_nothrow_move_assignable<_T2>>::value)
        {
  	first = std::forward<first_type>(__p.first);
  	second = std::forward<second_type>(__p.second);
--- 383,393 ----
  
        pair&
        operator=(typename conditional<
  		__and_<is_move_assignable<_T1>,
  		       is_move_assignable<_T2>>::value,
  		pair&&, __wrap_nonesuch&&>::type __p)
        noexcept(__and_<is_nothrow_move_assignable<_T1>,
! 		      is_nothrow_move_assignable<_T2>>::value)
        {
  	first = std::forward<first_type>(__p.first);
  	second = std::forward<second_type>(__p.second);
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/stl_stack.h gcc-6.5.0/libstdc++-v3/include/bits/stl_stack.h
*** gcc-6.4.0/libstdc++-v3/include/bits/stl_stack.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/stl_stack.h	Mon Sep  4 16:17:03 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 86,92 ****
     *
     *  The second template parameter defines the type of the underlying
     *  sequence/container.  It defaults to std::deque, but it can be
!    *  any type that supports @c back, @c push_back, and @c pop_front,
     *  such as std::list, std::vector, or an appropriate user-defined
     *  type.
     *
--- 86,92 ----
     *
     *  The second template parameter defines the type of the underlying
     *  sequence/container.  It defaults to std::deque, but it can be
!    *  any type that supports @c back, @c push_back, and @c pop_back,
     *  such as std::list, std::vector, or an appropriate user-defined
     *  type.
     *
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/stl_vector.h gcc-6.5.0/libstdc++-v3/include/bits/stl_vector.h
*** gcc-6.4.0/libstdc++-v3/include/bits/stl_vector.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/stl_vector.h	Wed Aug  8 15:40:37 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*** 1263,1286 ****
  
        // Called by the second initialize_dispatch above
        template<typename _InputIterator>
!         void
!         _M_range_initialize(_InputIterator __first,
! 			    _InputIterator __last, std::input_iterator_tag)
!         {
! 	  for (; __first != __last; ++__first)
  #if __cplusplus >= 201103L
! 	    emplace_back(*__first);
  #else
! 	    push_back(*__first);
  #endif
  	}
  
        // Called by the second initialize_dispatch above
        template<typename _ForwardIterator>
!         void
!         _M_range_initialize(_ForwardIterator __first,
! 			    _ForwardIterator __last, std::forward_iterator_tag)
!         {
  	  const size_type __n = std::distance(__first, __last);
  	  this->_M_impl._M_start = this->_M_allocate(__n);
  	  this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
--- 1263,1291 ----
  
        // Called by the second initialize_dispatch above
        template<typename _InputIterator>
! 	void
! 	_M_range_initialize(_InputIterator __first, _InputIterator __last,
! 			    std::input_iterator_tag)
! 	{
! 	  __try {
! 	    for (; __first != __last; ++__first)
  #if __cplusplus >= 201103L
! 	      emplace_back(*__first);
  #else
! 	      push_back(*__first);
  #endif
+ 	  } __catch(...) {
+ 	    clear();
+ 	    __throw_exception_again;
+ 	  }
  	}
  
        // Called by the second initialize_dispatch above
        template<typename _ForwardIterator>
! 	void
! 	_M_range_initialize(_ForwardIterator __first, _ForwardIterator __last,
! 			    std::forward_iterator_tag)
! 	{
  	  const size_type __n = std::distance(__first, __last);
  	  this->_M_impl._M_start = this->_M_allocate(__n);
  	  this->_M_impl._M_end_of_storage = this->_M_impl._M_start + __n;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/unique_ptr.h gcc-6.5.0/libstdc++-v3/include/bits/unique_ptr.h
*** gcc-6.4.0/libstdc++-v3/include/bits/unique_ptr.h	Wed Oct 19 10:15:27 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/unique_ptr.h	Thu Oct 25 16:41:54 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 201,207 ****
  		      "rvalue deleter bound to reference"); }
  
        /// Creates a unique_ptr that owns nothing.
!       constexpr unique_ptr(nullptr_t) noexcept : unique_ptr() { }
  
        // Move constructors.
  
--- 201,209 ----
  		      "rvalue deleter bound to reference"); }
  
        /// Creates a unique_ptr that owns nothing.
!       constexpr unique_ptr(nullptr_t) noexcept : _M_t()
!       { static_assert(!is_pointer<deleter_type>::value,
! 		      "constructed with null function pointer deleter"); }
  
        // Move constructors.
  
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 491,497 ****
        : _M_t(__u.release(), std::forward<deleter_type>(__u.get_deleter())) { }
  
        /// Creates a unique_ptr that owns nothing.
!       constexpr unique_ptr(nullptr_t) noexcept : unique_ptr() { }
  
        template<typename _Up, typename _Ep,
  	       typename = _Require<__safe_conversion_up<_Up, _Ep>>>
--- 493,501 ----
        : _M_t(__u.release(), std::forward<deleter_type>(__u.get_deleter())) { }
  
        /// Creates a unique_ptr that owns nothing.
!       constexpr unique_ptr(nullptr_t) noexcept : _M_t()
!       { static_assert(!is_pointer<deleter_type>::value,
! 		      "constructed with null function pointer deleter"); }
  
        template<typename _Up, typename _Ep,
  	       typename = _Require<__safe_conversion_up<_Up, _Ep>>>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/valarray_array.h gcc-6.5.0/libstdc++-v3/include/bits/valarray_array.h
*** gcc-6.4.0/libstdc++-v3/include/bits/valarray_array.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/valarray_array.h	Thu Oct 18 21:41:01 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 152,158 ****
      {
        inline static void
        _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o)
!       { __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp)); }
      };
  
    template<typename _Tp>
--- 152,161 ----
      {
        inline static void
        _S_do_it(const _Tp* __b, const _Tp* __e, _Tp* __restrict__ __o)
!       {
! 	if (__b)
! 	  __builtin_memcpy(__o, __b, (__e - __b) * sizeof(_Tp));
!       }
      };
  
    template<typename _Tp>
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 258,264 ****
      {
        inline static void
        _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b)
!       { __builtin_memcpy(__b, __a, __n * sizeof (_Tp)); }
      };
  
    // Copy a plain array __a[<__n>] into a play array __b[<>]
--- 261,270 ----
      {
        inline static void
        _S_do_it(const _Tp* __restrict__ __a, size_t __n, _Tp* __restrict__ __b)
!       {
! 	if (__n != 0)
! 	  __builtin_memcpy(__b, __a, __n * sizeof (_Tp));
!       }
      };
  
    // Copy a plain array __a[<__n>] into a play array __b[<>]
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 335,351 ****
      }
  
    //
!   // Compute the sum of elements in range [__f, __l)
    // This is a naive algorithm.  It suffers from cancelling.
!   // In the future try to specialize
!   // for _Tp = float, double, long double using a more accurate
!   // algorithm.
    //
    template<typename _Tp>
      inline _Tp
      __valarray_sum(const _Tp* __f, const _Tp* __l)
      {
!       _Tp __r = _Tp();
        while (__f != __l)
  	__r += *__f++;
        return __r;
--- 341,356 ----
      }
  
    //
!   // Compute the sum of elements in range [__f, __l) which must not be empty.
    // This is a naive algorithm.  It suffers from cancelling.
!   // In the future try to specialize for _Tp = float, double, long double
!   // using a more accurate algorithm.
    //
    template<typename _Tp>
      inline _Tp
      __valarray_sum(const _Tp* __f, const _Tp* __l)
      {
!       _Tp __r = *__f++;
        while (__f != __l)
  	__r += *__f++;
        return __r;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/bits/vector.tcc gcc-6.5.0/libstdc++-v3/include/bits/vector.tcc
*** gcc-6.4.0/libstdc++-v3/include/bits/vector.tcc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/bits/vector.tcc	Wed Aug  8 16:31:55 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*** 553,575 ****
  	    {
  	      const size_type __len =
  		_M_check_len(__n, "vector::_M_default_append");
! 	      const size_type __old_size = this->size();
  	      pointer __new_start(this->_M_allocate(__len));
! 	      pointer __new_finish(__new_start);
  	      __try
  		{
! 		  __new_finish
! 		    = std::__uninitialized_move_if_noexcept_a
! 		    (this->_M_impl._M_start, this->_M_impl._M_finish,
! 		     __new_start, _M_get_Tp_allocator());
! 		  __new_finish =
! 		    std::__uninitialized_default_n_a(__new_finish, __n,
! 						     _M_get_Tp_allocator());
  		}
  	      __catch(...)
  		{
! 		  std::_Destroy(__new_start, __new_finish,
! 				_M_get_Tp_allocator());
  		  _M_deallocate(__new_start, __len);
  		  __throw_exception_again;
  		}
--- 553,575 ----
  	    {
  	      const size_type __len =
  		_M_check_len(__n, "vector::_M_default_append");
! 	      const size_type __size = this->size();
  	      pointer __new_start(this->_M_allocate(__len));
! 	      pointer __destroy_from = pointer();
  	      __try
  		{
! 		  std::__uninitialized_default_n_a(__new_start + __size,
! 						   __n, _M_get_Tp_allocator());
! 		  __destroy_from = __new_start + __size;
! 		  std::__uninitialized_move_if_noexcept_a(
! 		      this->_M_impl._M_start, this->_M_impl._M_finish,
! 		      __new_start, _M_get_Tp_allocator());
  		}
  	      __catch(...)
  		{
! 		  if (__destroy_from)
! 		    std::_Destroy(__destroy_from, __destroy_from + __n,
! 				  _M_get_Tp_allocator());
  		  _M_deallocate(__new_start, __len);
  		  __throw_exception_again;
  		}
*************** _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*** 579,585 ****
  			    this->_M_impl._M_end_of_storage
  			    - this->_M_impl._M_start);
  	      this->_M_impl._M_start = __new_start;
! 	      this->_M_impl._M_finish = __new_finish;
  	      this->_M_impl._M_end_of_storage = __new_start + __len;
  	    }
  	}
--- 579,585 ----
  			    this->_M_impl._M_end_of_storage
  			    - this->_M_impl._M_start);
  	      this->_M_impl._M_start = __new_start;
! 	      this->_M_impl._M_finish = __new_start + __size + __n;
  	      this->_M_impl._M_end_of_storage = __new_start + __len;
  	    }
  	}
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/debug/string gcc-6.5.0/libstdc++-v3/include/debug/string
*** gcc-6.4.0/libstdc++-v3/include/debug/string	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/debug/string	Thu Jul  5 20:51:27 2018
*************** template<typename _CharT, typename _Trai
*** 563,569 ****
        insert(iterator __p, _InputIterator __first, _InputIterator __last)
        {
  	typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
! 	__glibcxx_check_insert_range2(__p, __first, __last, __dist);
  
  	if (__dist.second >= __dp_sign)
  	  _Base::insert(__p.base(), __gnu_debug::__unsafe(__first),
--- 563,569 ----
        insert(iterator __p, _InputIterator __first, _InputIterator __last)
        {
  	typename __gnu_debug::_Distance_traits<_InputIterator>::__type __dist;
! 	__glibcxx_check_insert_range(__p, __first, __last, __dist);
  
  	if (__dist.second >= __dp_sign)
  	  _Base::insert(__p.base(), __gnu_debug::__unsafe(__first),
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/experimental/bits/fs_ops.h gcc-6.5.0/libstdc++-v3/include/experimental/bits/fs_ops.h
*** gcc-6.4.0/libstdc++-v3/include/experimental/bits/fs_ops.h	Mon Dec 12 14:09:39 2016
--- gcc-6.5.0/libstdc++-v3/include/experimental/bits/fs_ops.h	Fri Jan  5 22:47:46 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 131,138 ****
    {
      auto __s = status(__p, __ec);
      if (status_known(__s))
!       __ec.clear();
!     return exists(__s);
    }
  
    uintmax_t file_size(const path& __p);
--- 131,141 ----
    {
      auto __s = status(__p, __ec);
      if (status_known(__s))
!       {
! 	__ec.clear();
! 	return __s.type() != file_type::not_found;
!       }
!     return false;
    }
  
    uintmax_t file_size(const path& __p);
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/experimental/bits/fs_path.h gcc-6.5.0/libstdc++-v3/include/experimental/bits/fs_path.h
*** gcc-6.4.0/libstdc++-v3/include/experimental/bits/fs_path.h	Mon Dec 12 14:09:39 2016
--- gcc-6.5.0/libstdc++-v3/include/experimental/bits/fs_path.h	Mon Oct 23 17:47:05 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 724,733 ****
      pointer   operator->() const { return std::__addressof(**this); }
  
      iterator& operator++();
!     iterator  operator++(int) { auto __tmp = *this; ++_M_cur; return __tmp; }
  
      iterator& operator--();
!     iterator  operator--(int) { auto __tmp = *this; --_M_cur; return __tmp; }
  
      friend bool operator==(const iterator& __lhs, const iterator& __rhs)
      { return __lhs._M_equals(__rhs); }
--- 724,733 ----
      pointer   operator->() const { return std::__addressof(**this); }
  
      iterator& operator++();
!     iterator  operator++(int) { auto __tmp = *this; ++*this; return __tmp; }
  
      iterator& operator--();
!     iterator  operator--(int) { auto __tmp = *this; --*this; return __tmp; }
  
      friend bool operator==(const iterator& __lhs, const iterator& __rhs)
      { return __lhs._M_equals(__rhs); }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/experimental/memory_resource gcc-6.5.0/libstdc++-v3/include/experimental/memory_resource
*** gcc-6.4.0/libstdc++-v3/include/experimental/memory_resource	Wed Dec  7 16:05:49 2016
--- gcc-6.5.0/libstdc++-v3/include/experimental/memory_resource	Fri Oct 12 13:04:24 2018
***************
*** 33,39 ****
  #include <new>
  #include <atomic>
  #include <cstddef>
- #include <bits/alloc_traits.h>
  #include <experimental/bits/lfts_config.h>
  
  namespace std {
--- 33,38 ----
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 256,261 ****
--- 255,276 ----
    template <typename _Alloc>
      class __resource_adaptor_imp : public memory_resource
      {
+       static_assert(is_same<char,
+ 	  typename allocator_traits<_Alloc>::value_type>::value,
+ 	  "Allocator's value_type is char");
+       static_assert(is_same<char*,
+ 	  typename allocator_traits<_Alloc>::pointer>::value,
+ 	  "Allocator's pointer type is value_type*");
+       static_assert(is_same<const char*,
+ 	  typename allocator_traits<_Alloc>::const_pointer>::value,
+ 	  "Allocator's const_pointer type is value_type const*");
+       static_assert(is_same<void*,
+ 	  typename allocator_traits<_Alloc>::void_pointer>::value,
+ 	  "Allocator's void_pointer type is void*");
+       static_assert(is_same<const void*,
+ 	  typename allocator_traits<_Alloc>::const_void_pointer>::value,
+ 	  "Allocator's const_void_pointer type is void const*");
+ 
      public:
        using allocator_type = _Alloc;
  
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 274,280 ****
        __resource_adaptor_imp&
        operator=(const __resource_adaptor_imp&) = default;
  
!       allocator_type get_allocator() const { return _M_alloc; }
  
      protected:
        virtual void*
--- 289,295 ----
        __resource_adaptor_imp&
        operator=(const __resource_adaptor_imp&) = default;
  
!       allocator_type get_allocator() const noexcept { return _M_alloc; }
  
      protected:
        virtual void*
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 309,321 ****
      private:
        // Calculate Aligned Size
        // Returns a size that is larger than or equal to __size and divisible
!       // by __alignment, where __alignment is required to be the power of 2.
        static size_t
        _S_aligned_size(size_t __size, size_t __alignment)
        { return ((__size - 1)|(__alignment - 1)) + 1; }
  
        // Determine whether alignment meets one of those preconditions:
!       // 1. Equals to Zero
        // 2. Is power of two
        static bool
        _S_supported (size_t __x)
--- 324,336 ----
      private:
        // Calculate Aligned Size
        // Returns a size that is larger than or equal to __size and divisible
!       // by __alignment, where __alignment is required to be a power of 2.
        static size_t
        _S_aligned_size(size_t __size, size_t __alignment)
        { return ((__size - 1)|(__alignment - 1)) + 1; }
  
        // Determine whether alignment meets one of those preconditions:
!       // 1. Equal to Zero
        // 2. Is power of two
        static bool
        _S_supported (size_t __x)
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 325,371 ****
      };
  
    // Global memory resources
-   inline std::atomic<memory_resource*>&
-   __get_default_resource()
-   {
-     static atomic<memory_resource*> _S_default_resource(new_delete_resource());
-     return _S_default_resource;
-   }
  
    inline memory_resource*
    new_delete_resource() noexcept
    {
!     static resource_adaptor<std::allocator<char>> __r;
!     return static_cast<memory_resource*>(&__r);
    }
  
!   template <typename _Alloc>
!     class __null_memory_resource : private memory_resource
      {
-     protected:
        void*
!       do_allocate(size_t, size_t)
        { std::__throw_bad_alloc(); }
  
        void
!       do_deallocate(void*, size_t, size_t) noexcept
        { }
  
        bool
!       do_is_equal(const memory_resource& __other) const noexcept
        { return this == &__other; }
- 
-       friend memory_resource* null_memory_resource() noexcept;
      };
  
!   inline memory_resource*
!   null_memory_resource() noexcept
!   {
!     static __null_memory_resource<void> __r;
!     return static_cast<memory_resource*>(&__r);
    }
  
    // The default memory resource
    inline memory_resource*
    get_default_resource() noexcept
    { return __get_default_resource().load(); }
--- 340,389 ----
      };
  
    // Global memory resources
  
    inline memory_resource*
    new_delete_resource() noexcept
    {
!     using type = resource_adaptor<std::allocator<char>>;
!     alignas(type) static unsigned char __buf[sizeof(type)];
!     static type* __r = new(__buf) type;
!     return __r;
    }
  
!   inline memory_resource*
!   null_memory_resource() noexcept
!   {
!     class type final : public memory_resource
      {
        void*
!       do_allocate(size_t, size_t) override
        { std::__throw_bad_alloc(); }
  
        void
!       do_deallocate(void*, size_t, size_t) noexcept override
        { }
  
        bool
!       do_is_equal(const memory_resource& __other) const noexcept override
        { return this == &__other; }
      };
  
!     alignas(type) static unsigned char __buf[sizeof(type)];
!     static type* __r = new(__buf) type;
!     return __r;
    }
  
    // The default memory resource
+ 
+   inline std::atomic<memory_resource*>&
+   __get_default_resource()
+   {
+     using type = atomic<memory_resource*>;
+     alignas(type) static unsigned char __buf[sizeof(type)];
+     static type* __r = new(__buf) type(new_delete_resource());
+     return *__r;
+   }
+ 
    inline memory_resource*
    get_default_resource() noexcept
    { return __get_default_resource().load(); }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/experimental/regex gcc-6.5.0/libstdc++-v3/include/experimental/regex
*** gcc-6.4.0/libstdc++-v3/include/experimental/regex	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/experimental/regex	Fri Oct 12 13:04:38 2018
*************** namespace experimental
*** 44,53 ****
  {
  inline namespace fundamentals_v2
  {
  namespace pmr
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
- _GLIBCXX_BEGIN_NAMESPACE_CXX11
  
    template<typename _BidirectionalIterator>
      using match_results
--- 44,53 ----
  {
  inline namespace fundamentals_v2
  {
+ #if _GLIBCXX_USE_CXX11_ABI
  namespace pmr
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
    template<typename _BidirectionalIterator>
      using match_results
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 59,68 ****
    typedef match_results<string::const_iterator> smatch;
    typedef match_results<wstring::const_iterator> wsmatch;
  
- _GLIBCXX_END_NAMESPACE_CXX11
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace pmr
! 
  } // namespace fundamentals_v2
  } // namespace experimental
  } // namespace std
--- 59,67 ----
    typedef match_results<string::const_iterator> smatch;
    typedef match_results<wstring::const_iterator> wsmatch;
  
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace pmr
! #endif
  } // namespace fundamentals_v2
  } // namespace experimental
  } // namespace std
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/experimental/string gcc-6.5.0/libstdc++-v3/include/experimental/string
*** gcc-6.4.0/libstdc++-v3/include/experimental/string	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/experimental/string	Fri Oct 12 13:04:38 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 66,74 ****
  
  _GLIBCXX_END_NAMESPACE_VERSION
  
  namespace pmr {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
- _GLIBCXX_BEGIN_NAMESPACE_CXX11
  
    // basic_string using polymorphic allocator in namespace pmr
    template<typename _CharT, typename _Traits = char_traits<_CharT>>
--- 66,74 ----
  
  _GLIBCXX_END_NAMESPACE_VERSION
  
+ #if _GLIBCXX_USE_CXX11_ABI
  namespace pmr {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
    // basic_string using polymorphic allocator in namespace pmr
    template<typename _CharT, typename _Traits = char_traits<_CharT>>
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 82,91 ****
    typedef basic_string<char32_t> u32string;
    typedef basic_string<wchar_t> wstring;
  
- _GLIBCXX_END_NAMESPACE_CXX11
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace pmr
! 
  } // namespace fundamentals_v2
  } // namespace experimental
  } // namespace std
--- 82,90 ----
    typedef basic_string<char32_t> u32string;
    typedef basic_string<wchar_t> wstring;
  
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace pmr
! #endif
  } // namespace fundamentals_v2
  } // namespace experimental
  } // namespace std
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/ext/new_allocator.h gcc-6.5.0/libstdc++-v3/include/ext/new_allocator.h
*** gcc-6.4.0/libstdc++-v3/include/ext/new_allocator.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/ext/new_allocator.h	Mon Sep  4 16:17:11 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 96,103 ****
        // NB: __n is permitted to be 0.  The C++ standard says nothing
        // about what the return value is when __n == 0.
        pointer
!       allocate(size_type __n, const void* = 0)
!       { 
  	if (__n > this->max_size())
  	  std::__throw_bad_alloc();
  
--- 96,103 ----
        // NB: __n is permitted to be 0.  The C++ standard says nothing
        // about what the return value is when __n == 0.
        pointer
!       allocate(size_type __n, const void* = static_cast<const void*>(0))
!       {
  	if (__n > this->max_size())
  	  std::__throw_bad_alloc();
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/ext/pointer.h gcc-6.5.0/libstdc++-v3/include/ext/pointer.h
*** gcc-6.4.0/libstdc++-v3/include/ext/pointer.h	Tue Feb 14 20:07:54 2017
--- gcc-6.5.0/libstdc++-v3/include/ext/pointer.h	Fri Oct 12 13:04:44 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 437,442 ****
--- 437,446 ----
        _CXX_POINTER_ARITH_OPERATOR_SET(unsigned int);
        _CXX_POINTER_ARITH_OPERATOR_SET(long);
        _CXX_POINTER_ARITH_OPERATOR_SET(unsigned long);
+ #ifdef _GLIBCXX_USE_LONG_LONG
+       _CXX_POINTER_ARITH_OPERATOR_SET(long long);
+       _CXX_POINTER_ARITH_OPERATOR_SET(unsigned long long);
+ #endif
  
        // Mathematical Manipulators
        inline _Pointer_adapter& 
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/chrono gcc-6.5.0/libstdc++-v3/include/std/chrono
*** gcc-6.4.0/libstdc++-v3/include/std/chrono	Mon Oct  3 14:35:59 2016
--- gcc-6.5.0/libstdc++-v3/include/std/chrono	Wed Aug  8 15:40:57 2018
*************** _GLIBCXX_END_NAMESPACE_VERSION
*** 256,263 ****
  	// constexpr copy constructor will be ill-formed.
  	duration(const duration&) = default;
  
  	template<typename _Rep2, typename = typename
! 	       enable_if<is_convertible<_Rep2, rep>::value
  			 && (treat_as_floating_point<rep>::value
  			     || !treat_as_floating_point<_Rep2>::value)>::type>
  	  constexpr explicit duration(const _Rep2& __rep)
--- 256,265 ----
  	// constexpr copy constructor will be ill-formed.
  	duration(const duration&) = default;
  
+ 	// _GLIBCXX_RESOLVE_LIB_DEFECTS
+ 	// 3050. Conversion specification problem in chrono::duration
  	template<typename _Rep2, typename = typename
! 	       enable_if<is_convertible<const _Rep2&, rep>::value
  			 && (treat_as_floating_point<rep>::value
  			     || !treat_as_floating_point<_Rep2>::value)>::type>
  	  constexpr explicit duration(const _Rep2& __rep)
*************** _GLIBCXX_END_NAMESPACE_VERSION
*** 399,406 ****
  	return __cd(__cd(__lhs).count() - __cd(__rhs).count());
        }
  
      template<typename _Rep1, typename _Rep2, bool =
! 	     is_convertible<_Rep2,
  			    typename common_type<_Rep1, _Rep2>::type>::value>
        struct __common_rep_type { };
  
--- 401,412 ----
  	return __cd(__cd(__lhs).count() - __cd(__rhs).count());
        }
  
+     // SFINAE helper to obtain common_type<_Rep1, _Rep2> only if _Rep2
+     // is implicitly convertible to it.
+     // _GLIBCXX_RESOLVE_LIB_DEFECTS
+     // 3050. Conversion specification problem in chrono::duration constructor
      template<typename _Rep1, typename _Rep2, bool =
! 	     is_convertible<const _Rep2&,
  			    typename common_type<_Rep1, _Rep2>::type>::value>
        struct __common_rep_type { };
  
*************** _GLIBCXX_END_NAMESPACE_VERSION
*** 558,564 ****
  	{ }
  
  	// conversions
! 	template<typename _Dur2>
  	  constexpr time_point(const time_point<clock, _Dur2>& __t)
  	  : __d(__t.time_since_epoch())
  	  { }
--- 564,571 ----
  	{ }
  
  	// conversions
! 	template<typename _Dur2,
! 		 typename = _Require<is_convertible<_Dur2, _Dur>>>
  	  constexpr time_point(const time_point<clock, _Dur2>& __t)
  	  : __d(__t.time_since_epoch())
  	  { }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/complex gcc-6.5.0/libstdc++-v3/include/std/complex
*** gcc-6.4.0/libstdc++-v3/include/std/complex	Mon Oct  3 14:35:59 2016
--- gcc-6.5.0/libstdc++-v3/include/std/complex	Thu Dec 14 12:01:40 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 493,499 ****
      operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
      {
        _Tp __re_x, __im_x;
!       _CharT __ch;
        __is >> __ch;
        if (__ch == '(') 
  	{
--- 493,499 ----
      operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
      {
        _Tp __re_x, __im_x;
!       _CharT __ch = _CharT();
        __is >> __ch;
        if (__ch == '(') 
  	{
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 511,521 ****
  	  else
  	    __is.setstate(ios_base::failbit);
  	}
!       else 
  	{
  	  __is.putback(__ch);
! 	  __is >> __re_x;
! 	  __x = __re_x;
  	}
        return __is;
      }
--- 511,523 ----
  	  else
  	    __is.setstate(ios_base::failbit);
  	}
!       else if (__is)
  	{
  	  __is.putback(__ch);
! 	  if (__is >> __re_x)
! 	    __x = __re_x;
! 	  else
! 	    __is.setstate(ios_base::failbit);
  	}
        return __is;
      }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/condition_variable gcc-6.5.0/libstdc++-v3/include/std/condition_variable
*** gcc-6.4.0/libstdc++-v3/include/std/condition_variable	Wed Jan  6 13:00:33 2016
--- gcc-6.5.0/libstdc++-v3/include/std/condition_variable	Wed Aug  8 15:40:41 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 135,148 ****
        cv_status
        wait_for(unique_lock<mutex>& __lock,
  	       const chrono::duration<_Rep, _Period>& __rtime)
!       { return wait_until(__lock, __clock_t::now() + __rtime); }
  
      template<typename _Rep, typename _Period, typename _Predicate>
        bool
        wait_for(unique_lock<mutex>& __lock,
  	       const chrono::duration<_Rep, _Period>& __rtime,
  	       _Predicate __p)
!       { return wait_until(__lock, __clock_t::now() + __rtime, std::move(__p)); }
  
      native_handle_type
      native_handle()
--- 135,160 ----
        cv_status
        wait_for(unique_lock<mutex>& __lock,
  	       const chrono::duration<_Rep, _Period>& __rtime)
!       {
! 	using __dur = typename __clock_t::duration;
! 	auto __reltime = chrono::duration_cast<__dur>(__rtime);
! 	if (__reltime < __rtime)
! 	  ++__reltime;
! 	return wait_until(__lock, __clock_t::now() + __reltime);
!       }
  
      template<typename _Rep, typename _Period, typename _Predicate>
        bool
        wait_for(unique_lock<mutex>& __lock,
  	       const chrono::duration<_Rep, _Period>& __rtime,
  	       _Predicate __p)
!       {
! 	using __dur = typename __clock_t::duration;
! 	auto __reltime = chrono::duration_cast<__dur>(__rtime);
! 	if (__reltime < __rtime)
! 	  ++__reltime;
! 	return wait_until(__lock, __clock_t::now() + __reltime, std::move(__p));
!       }
  
      native_handle_type
      native_handle()
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/functional gcc-6.5.0/libstdc++-v3/include/std/functional
*** gcc-6.4.0/libstdc++-v3/include/std/functional	Thu May 18 14:35:54 2017
--- gcc-6.5.0/libstdc++-v3/include/std/functional	Mon Sep  4 16:52:20 2017
*************** _GLIBCXX_MEM_FN_TRAITS(&&, false_type, t
*** 1885,1891 ****
         *  The newly-created %function contains the target of @a __x
         *  (if it has one).
         */
!       function(function&& __x) : _Function_base()
        {
  	__x.swap(*this);
        }
--- 1885,1891 ----
         *  The newly-created %function contains the target of @a __x
         *  (if it has one).
         */
!       function(function&& __x) noexcept : _Function_base()
        {
  	__x.swap(*this);
        }
*************** _GLIBCXX_MEM_FN_TRAITS(&&, false_type, t
*** 1944,1950 ****
         *  object, then this operation will not throw an %exception.
         */
        function&
!       operator=(function&& __x)
        {
  	function(std::move(__x)).swap(*this);
  	return *this;
--- 1944,1950 ----
         *  object, then this operation will not throw an %exception.
         */
        function&
!       operator=(function&& __x) noexcept
        {
  	function(std::move(__x)).swap(*this);
  	return *this;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/future gcc-6.5.0/libstdc++-v3/include/std/future
*** gcc-6.4.0/libstdc++-v3/include/std/future	Thu Jan  7 15:01:33 2016
--- gcc-6.5.0/libstdc++-v3/include/std/future	Wed Aug  8 15:40:51 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 462,468 ****
  	  // Used by std::promise to copy construct the result.
            typename promise<_Res>::_Ptr_type operator()() const
            {
-             _State_baseV2::_S_check(_M_promise->_M_future);
              _M_promise->_M_storage->_M_set(*_M_arg);
              return std::move(_M_promise->_M_storage);
            }
--- 462,467 ----
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 477,483 ****
  	  // Used by std::promise to move construct the result.
            typename promise<_Res>::_Ptr_type operator()() const
            {
-             _State_baseV2::_S_check(_M_promise->_M_future);
              _M_promise->_M_storage->_M_set(std::move(*_M_arg));
              return std::move(_M_promise->_M_storage);
            }
--- 476,481 ----
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 485,490 ****
--- 483,500 ----
            _Res*             _M_arg;
          };
  
+       // set void
+       template<typename _Res>
+ 	struct _Setter<_Res, void>
+ 	{
+ 	  static_assert(is_void<_Res>::value, "Only used for promise<void>");
+ 
+ 	  typename promise<_Res>::_Ptr_type operator()() const
+ 	  { return std::move(_M_promise->_M_storage); }
+ 
+ 	  promise<_Res>*    _M_promise;
+ 	};
+ 
        struct __exception_ptr_tag { };
  
        // set exceptions
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 494,500 ****
  	  // Used by std::promise to store an exception as the result.
            typename promise<_Res>::_Ptr_type operator()() const
            {
-             _State_baseV2::_S_check(_M_promise->_M_future);
              _M_promise->_M_storage->_M_error = *_M_ex;
              return std::move(_M_promise->_M_storage);
            }
--- 504,509 ----
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 507,512 ****
--- 516,522 ----
          static _Setter<_Res, _Arg&&>
          __setter(promise<_Res>* __prom, _Arg&& __arg)
          {
+ 	  _S_check(__prom->_M_future);
            return _Setter<_Res, _Arg&&>{ __prom, std::__addressof(__arg) };
          }
  
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 514,522 ****
--- 524,541 ----
          static _Setter<_Res, __exception_ptr_tag>
          __setter(exception_ptr& __ex, promise<_Res>* __prom)
          {
+ 	  _S_check(__prom->_M_future);
            return _Setter<_Res, __exception_ptr_tag>{ __prom, &__ex };
          }
  
+       template<typename _Res>
+ 	static _Setter<_Res, void>
+ 	__setter(promise<_Res>* __prom)
+ 	{
+ 	  _S_check(__prom->_M_future);
+ 	  return _Setter<_Res, void>{ __prom };
+ 	}
+ 
        template<typename _Tp>
          static void
          _S_check(const shared_ptr<_Tp>& __p)
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 866,872 ****
        constexpr shared_future() noexcept : _Base_type() { }
  
        /// Copy constructor
!       shared_future(const shared_future& __sf) : _Base_type(__sf) { }
  
        /// Construct from a future rvalue
        shared_future(future<_Res>&& __uf) noexcept
--- 885,891 ----
        constexpr shared_future() noexcept : _Base_type() { }
  
        /// Copy constructor
!       shared_future(const shared_future& __sf) noexcept : _Base_type(__sf) { }
  
        /// Construct from a future rvalue
        shared_future(future<_Res>&& __uf) noexcept
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 878,884 ****
        : _Base_type(std::move(__sf))
        { }
  
!       shared_future& operator=(const shared_future& __sf)
        {
          shared_future(__sf)._M_swap(*this);
          return *this;
--- 897,903 ----
        : _Base_type(std::move(__sf))
        { }
  
!       shared_future& operator=(const shared_future& __sf) noexcept
        {
          shared_future(__sf)._M_swap(*this);
          return *this;
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1014,1019 ****
--- 1033,1039 ----
        typedef __future_base::_Result<_Res>	_Res_type;
        typedef __future_base::_Ptr<_Res_type>	_Ptr_type;
        template<typename, typename> friend class _State::_Setter;
+       friend _State;
  
        shared_ptr<_State>                        _M_future;
        _Ptr_type                                 _M_storage;
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1124,1129 ****
--- 1144,1150 ----
        typedef __future_base::_Result<_Res&>	_Res_type;
        typedef __future_base::_Ptr<_Res_type> 	_Ptr_type;
        template<typename, typename> friend class _State::_Setter;
+       friend _State;
  
        shared_ptr<_State>                        _M_future;
        _Ptr_type                                 _M_storage;
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1213,1218 ****
--- 1234,1240 ----
        typedef __future_base::_Result<void>	_Res_type;
        typedef __future_base::_Ptr<_Res_type> 	_Ptr_type;
        template<typename, typename> friend class _State::_Setter;
+       friend _State;
  
        shared_ptr<_State>                        _M_future;
        _Ptr_type                                 _M_storage;
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1273,1286 ****
        { return future<void>(_M_future); }
  
        // Setting the result
!       void set_value();
  
        void
        set_exception(exception_ptr __p)
        { _M_future->_M_set_result(_State::__setter(__p, this)); }
  
        void
!       set_value_at_thread_exit();
  
        void
        set_exception_at_thread_exit(exception_ptr __p)
--- 1295,1311 ----
        { return future<void>(_M_future); }
  
        // Setting the result
!       void
!       set_value()
!       { _M_future->_M_set_result(_State::__setter(this)); }
  
        void
        set_exception(exception_ptr __p)
        { _M_future->_M_set_result(_State::__setter(__p, this)); }
  
        void
!       set_value_at_thread_exit()
!       { _M_future->_M_set_delayed_result(_State::__setter(this), _M_future); }
  
        void
        set_exception_at_thread_exit(exception_ptr __p)
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 1290,1319 ****
        }
      };
  
-   // set void
-   template<>
-     struct __future_base::_State_base::_Setter<void, void>
-     {
-       promise<void>::_Ptr_type operator()() const
-       {
-         _State_base::_S_check(_M_promise->_M_future);
-         return std::move(_M_promise->_M_storage);
-       }
- 
-       promise<void>*    _M_promise;
-     };
- 
-   inline void
-   promise<void>::set_value()
-   { _M_future->_M_set_result(_State::_Setter<void, void>{ this }); }
- 
-   inline void
-   promise<void>::set_value_at_thread_exit()
-   {
-     _M_future->_M_set_delayed_result(_State::_Setter<void, void>{this},
- 				     _M_future);
-   }
- 
    template<typename _Ptr_type, typename _Fn, typename _Res>
      struct __future_base::_Task_setter
      {
--- 1315,1320 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/istream gcc-6.5.0/libstdc++-v3/include/std/istream
*** gcc-6.4.0/libstdc++-v3/include/std/istream	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/std/istream	Mon Sep  4 16:52:25 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 150,158 ****
         *  whatever data is appropriate for the type of the argument.
         *
         *  If an exception is thrown during extraction, ios_base::badbit
!        *  will be turned on in the stream's error state without causing an
!        *  ios_base::failure to be thrown.  The original exception will then
!        *  be rethrown.
        */
  
        //@{
--- 150,158 ----
         *  whatever data is appropriate for the type of the argument.
         *
         *  If an exception is thrown during extraction, ios_base::badbit
!        *  will be turned on in the stream's error state (without causing an
!        *  ios_base::failure to be thrown) and the original exception will
!        *  be rethrown if badbit is set in the exceptions mask.
        */
  
        //@{
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 286,294 ****
         *  by gcount().
         *
         *  If an exception is thrown during extraction, ios_base::badbit
!        *  will be turned on in the stream's error state without causing an
!        *  ios_base::failure to be thrown.  The original exception will then
!        *  be rethrown.
        */
  
        /**
--- 286,294 ----
         *  by gcount().
         *
         *  If an exception is thrown during extraction, ios_base::badbit
!        *  will be turned on in the stream's error state (without causing an
!        *  ios_base::failure to be thrown) and the original exception will
!        *  be rethrown if badbit is set in the exceptions mask.
        */
  
        /**
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/sstream gcc-6.5.0/libstdc++-v3/include/std/sstream
*** gcc-6.4.0/libstdc++-v3/include/std/sstream	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/std/sstream	Mon Sep  4 16:16:58 2017
*************** _GLIBCXX_BEGIN_NAMESPACE_CXX11
*** 302,319 ****
  	__xfer_bufptrs(const basic_stringbuf& __from, basic_stringbuf* __to)
  	: _M_to{__to}, _M_goff{-1, -1, -1}, _M_poff{-1, -1, -1}
  	{
! 	  const _CharT* __str = __from._M_string.data();
  	  if (__from.eback())
  	    {
! 	    _M_goff[0] = __from.eback() - __str;
! 	    _M_goff[1] = __from.gptr() - __str;
! 	    _M_goff[2] = __from.egptr() - __str;
  	    }
  	  if (__from.pbase())
  	    {
  	      _M_poff[0] = __from.pbase() - __str;
  	      _M_poff[1] = __from.pptr() - __from.pbase();
  	      _M_poff[2] = __from.epptr() - __str;
  	    }
  	}
  
--- 302,332 ----
  	__xfer_bufptrs(const basic_stringbuf& __from, basic_stringbuf* __to)
  	: _M_to{__to}, _M_goff{-1, -1, -1}, _M_poff{-1, -1, -1}
  	{
! 	  const _CharT* const __str = __from._M_string.data();
! 	  const _CharT* __end = nullptr;
  	  if (__from.eback())
  	    {
! 	      _M_goff[0] = __from.eback() - __str;
! 	      _M_goff[1] = __from.gptr() - __str;
! 	      _M_goff[2] = __from.egptr() - __str;
! 	      __end = __from.egptr();
  	    }
  	  if (__from.pbase())
  	    {
  	      _M_poff[0] = __from.pbase() - __str;
  	      _M_poff[1] = __from.pptr() - __from.pbase();
  	      _M_poff[2] = __from.epptr() - __str;
+ 	      if (__from.pptr() > __end)
+ 		__end = __from.pptr();
+ 	    }
+ 
+ 	  // Set _M_string length to the greater of the get and put areas.
+ 	  if (__end)
+ 	    {
+ 	      // The const_cast avoids changing this constructor's signature,
+ 	      // because it is exported from the dynamic library.
+ 	      auto& __mut_from = const_cast<basic_stringbuf&>(__from);
+ 	      __mut_from._M_string._M_length(__end - __str);
  	    }
  	}
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/type_traits gcc-6.5.0/libstdc++-v3/include/std/type_traits
*** gcc-6.4.0/libstdc++-v3/include/std/type_traits	Tue Feb 14 20:08:12 2017
--- gcc-6.5.0/libstdc++-v3/include/std/type_traits	Wed Aug  8 15:41:05 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 71,82 ****
        static constexpr _Tp                  value = __v;
        typedef _Tp                           value_type;
        typedef integral_constant<_Tp, __v>   type;
!       constexpr operator value_type() const { return value; }
  #if __cplusplus > 201103L
  
  #define __cpp_lib_integral_constant_callable 201304
  
!       constexpr value_type operator()() const { return value; }
  #endif
      };
    
--- 71,82 ----
        static constexpr _Tp                  value = __v;
        typedef _Tp                           value_type;
        typedef integral_constant<_Tp, __v>   type;
!       constexpr operator value_type() const noexcept { return value; }
  #if __cplusplus > 201103L
  
  #define __cpp_lib_integral_constant_callable 201304
  
!       constexpr value_type operator()() const noexcept { return value; }
  #endif
      };
    
diff -Nrcpad gcc-6.4.0/libstdc++-v3/include/std/utility gcc-6.5.0/libstdc++-v3/include/std/utility
*** gcc-6.4.0/libstdc++-v3/include/std/utility	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/include/std/utility	Wed Aug  8 15:41:05 2018
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 296,302 ****
      struct integer_sequence
      {
        typedef _Tp value_type;
!       static constexpr size_t size() { return sizeof...(_Idx); }
      };
  
    template<typename _Tp, _Tp _Num,
--- 296,302 ----
      struct integer_sequence
      {
        typedef _Tp value_type;
!       static constexpr size_t size() noexcept { return sizeof...(_Idx); }
      };
  
    template<typename _Tp, _Tp _Num,
diff -Nrcpad gcc-6.4.0/libstdc++-v3/libsupc++/cxxabi.h gcc-6.5.0/libstdc++-v3/libsupc++/cxxabi.h
*** gcc-6.4.0/libstdc++-v3/libsupc++/cxxabi.h	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/libsupc++/cxxabi.h	Wed Sep 13 10:10:04 2017
*************** namespace __cxxabiv1
*** 185,191 ****
     *  with GNU extensions. For example, this function is used in
     *  __gnu_cxx::__verbose_terminate_handler.
     *
!    *  See http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt12ch39.html
     *  for other examples of use.
     *
     *  @note The same demangling functionality is available via
--- 185,191 ----
     *  with GNU extensions. For example, this function is used in
     *  __gnu_cxx::__verbose_terminate_handler.
     *
!    *  See https://gcc.gnu.org/onlinedocs/libstdc++/manual/ext_demangling.html
     *  for other examples of use.
     *
     *  @note The same demangling functionality is available via
diff -Nrcpad gcc-6.4.0/libstdc++-v3/python/libstdcxx/v6/printers.py gcc-6.5.0/libstdc++-v3/python/libstdcxx/v6/printers.py
*** gcc-6.4.0/libstdc++-v3/python/libstdcxx/v6/printers.py	Thu May 18 14:35:18 2017
--- gcc-6.5.0/libstdc++-v3/python/libstdcxx/v6/printers.py	Mon Oct 15 11:52:48 2018
*************** class StdExpPathPrinter:
*** 1062,1067 ****
--- 1062,1100 ----
          return self._iterator(self.val['_M_cmpts'])
  
  
+ class StdPairPrinter:
+     "Print a std::pair object, with 'first' and 'second' as children"
+ 
+     def __init__(self, typename, val):
+         self.val = val
+ 
+     class _iter(Iterator):
+         "An iterator for std::pair types. Returns 'first' then 'second'."
+ 
+         def __init__(self, val):
+             self.val = val
+             self.which = 'first'
+ 
+         def __iter__(self):
+             return self
+ 
+         def __next__(self):
+             if self.which is None:
+                 raise StopIteration
+             which = self.which
+             if which == 'first':
+                 self.which = 'second'
+             else:
+                 self.which = None
+             return (which, self.val[which])
+ 
+     def children(self):
+         return self._iter(self.val)
+ 
+     def to_string(self):
+         return None
+ 
+ 
  # A "regular expression" printer which conforms to the
  # "SubPrettyPrinter" protocol from gdb.printing.
  class RxPrinter(object):
*************** class TemplateTypePrinter(object):
*** 1154,1160 ****
      Recognizes type names that match a regular expression.
      Replaces them with a formatted string which can use replacement field
      {N} to refer to the \N subgroup of the regex match.
!     Type printers are recusively applied to the subgroups.
  
      This allows recognizing e.g. "std::vector<(.*), std::allocator<\\1> >"
      and replacing it with "std::vector<{1}>", omitting the template argument
--- 1187,1193 ----
      Recognizes type names that match a regular expression.
      Replaces them with a formatted string which can use replacement field
      {N} to refer to the \N subgroup of the regex match.
!     Type printers are recursively applied to the subgroups.
  
      This allows recognizing e.g. "std::vector<(.*), std::allocator<\\1> >"
      and replacing it with "std::vector<{1}>", omitting the template argument
*************** def register_type_printers(obj):
*** 1335,1344 ****
      # strip the "fundamentals_v1" inline namespace from these types
      add_one_template_type_printer(obj, 'optional<T>',
              'experimental::fundamentals_v1::optional<(.*)>',
!             'experimental::optional<\\1>')
      add_one_template_type_printer(obj, 'basic_string_view<C>',
              'experimental::fundamentals_v1::basic_string_view<(.*), std::char_traits<\\1> >',
!             'experimental::basic_string_view<\\1>')
  
  def register_libstdcxx_printers (obj):
      "Register libstdc++ pretty-printers with objfile Obj."
--- 1368,1377 ----
      # strip the "fundamentals_v1" inline namespace from these types
      add_one_template_type_printer(obj, 'optional<T>',
              'experimental::fundamentals_v1::optional<(.*)>',
!             'experimental::optional<{1}>')
      add_one_template_type_printer(obj, 'basic_string_view<C>',
              'experimental::fundamentals_v1::basic_string_view<(.*), std::char_traits<\\1> >',
!             'experimental::basic_string_view<{1}>')
  
  def register_libstdcxx_printers (obj):
      "Register libstdc++ pretty-printers with objfile Obj."
*************** def build_libstdcxx_dictionary ():
*** 1377,1382 ****
--- 1410,1416 ----
      libstdcxx_printer.add_container('std::', 'map', StdMapPrinter)
      libstdcxx_printer.add_container('std::', 'multimap', StdMapPrinter)
      libstdcxx_printer.add_container('std::', 'multiset', StdSetPrinter)
+     libstdcxx_printer.add_version('std::', 'pair', StdPairPrinter)
      libstdcxx_printer.add_version('std::', 'priority_queue',
                                    StdStackOrQueuePrinter)
      libstdcxx_printer.add_version('std::', 'queue', StdStackOrQueuePrinter)
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/Makefile.am gcc-6.5.0/libstdc++-v3/src/c++11/Makefile.am
*** gcc-6.4.0/libstdc++-v3/src/c++11/Makefile.am	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/Makefile.am	Mon Sep 18 12:57:05 2017
*************** extra_string_inst_sources = \
*** 82,90 ****
  	cow-fstream-inst.cc \
  	cow-sstream-inst.cc \
  	cow-string-inst.cc \
  	cow-wstring-inst.cc \
  	cxx11-locale-inst.cc \
! 	cxx11-wlocale-inst.cc
  else
  extra_string_inst_sources =
  endif
--- 82,93 ----
  	cow-fstream-inst.cc \
  	cow-sstream-inst.cc \
  	cow-string-inst.cc \
+ 	cow-string-io-inst.cc \
  	cow-wstring-inst.cc \
+ 	cow-wstring-io-inst.cc \
  	cxx11-locale-inst.cc \
! 	cxx11-wlocale-inst.cc \
! 	sso_string.cc
  else
  extra_string_inst_sources =
  endif
*************** inst_sources = \
*** 103,110 ****
  	sstream-inst.cc \
  	streambuf-inst.cc \
  	string-inst.cc \
  	wlocale-inst.cc \
! 	wstring-inst.cc
  else
  # XTEMPLATE_FLAGS =
  inst_sources =
--- 106,115 ----
  	sstream-inst.cc \
  	streambuf-inst.cc \
  	string-inst.cc \
+ 	string-io-inst.cc \
  	wlocale-inst.cc \
! 	wstring-inst.cc \
! 	wstring-io-inst.cc
  else
  # XTEMPLATE_FLAGS =
  inst_sources =
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/Makefile.in gcc-6.5.0/libstdc++-v3/src/c++11/Makefile.in
*** gcc-6.4.0/libstdc++-v3/src/c++11/Makefile.in	Fri Jul 24 07:05:19 2015
--- gcc-6.5.0/libstdc++-v3/src/c++11/Makefile.in	Mon Sep 18 12:57:05 2017
*************** am__objects_3 = chrono.lo codecvt.lo con
*** 97,111 ****
  	system_error.lo thread.lo $(am__objects_1) $(am__objects_2)
  @ENABLE_DUAL_ABI_TRUE@am__objects_4 = cow-fstream-inst.lo \
  @ENABLE_DUAL_ABI_TRUE@	cow-sstream-inst.lo cow-string-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cow-wstring-inst.lo cxx11-locale-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cxx11-wlocale-inst.lo
  @ENABLE_EXTERN_TEMPLATE_TRUE@am__objects_5 = $(am__objects_4) \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	ext11-inst.lo fstream-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	ios-inst.lo iostream-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	istream-inst.lo locale-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	ostream-inst.lo sstream-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	streambuf-inst.lo string-inst.lo \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	wlocale-inst.lo wstring-inst.lo
  am_libc__11convenience_la_OBJECTS = $(am__objects_3) $(am__objects_5)
  libc__11convenience_la_OBJECTS = $(am_libc__11convenience_la_OBJECTS)
  DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
--- 97,116 ----
  	system_error.lo thread.lo $(am__objects_1) $(am__objects_2)
  @ENABLE_DUAL_ABI_TRUE@am__objects_4 = cow-fstream-inst.lo \
  @ENABLE_DUAL_ABI_TRUE@	cow-sstream-inst.lo cow-string-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cow-string-io-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cow-wstring-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cow-wstring-io-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cxx11-locale-inst.lo \
! @ENABLE_DUAL_ABI_TRUE@	cxx11-wlocale-inst.lo sso_string.lo
  @ENABLE_EXTERN_TEMPLATE_TRUE@am__objects_5 = $(am__objects_4) \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	ext11-inst.lo fstream-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	ios-inst.lo iostream-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	istream-inst.lo locale-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	ostream-inst.lo sstream-inst.lo \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	streambuf-inst.lo string-inst.lo \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	string-io-inst.lo wlocale-inst.lo \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	wstring-inst.lo \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	wstring-io-inst.lo
  am_libc__11convenience_la_OBJECTS = $(am__objects_3) $(am__objects_5)
  libc__11convenience_la_OBJECTS = $(am_libc__11convenience_la_OBJECTS)
  DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
*************** sources = \
*** 395,403 ****
  @ENABLE_DUAL_ABI_TRUE@	cow-fstream-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cow-sstream-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cow-string-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cow-wstring-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cxx11-locale-inst.cc \
! @ENABLE_DUAL_ABI_TRUE@	cxx11-wlocale-inst.cc
  
  # XTEMPLATE_FLAGS =
  @ENABLE_EXTERN_TEMPLATE_FALSE@inst_sources = 
--- 400,411 ----
  @ENABLE_DUAL_ABI_TRUE@	cow-fstream-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cow-sstream-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cow-string-inst.cc \
+ @ENABLE_DUAL_ABI_TRUE@	cow-string-io-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cow-wstring-inst.cc \
+ @ENABLE_DUAL_ABI_TRUE@	cow-wstring-io-inst.cc \
  @ENABLE_DUAL_ABI_TRUE@	cxx11-locale-inst.cc \
! @ENABLE_DUAL_ABI_TRUE@	cxx11-wlocale-inst.cc \
! @ENABLE_DUAL_ABI_TRUE@	sso_string.cc
  
  # XTEMPLATE_FLAGS =
  @ENABLE_EXTERN_TEMPLATE_FALSE@inst_sources = 
*************** sources = \
*** 415,422 ****
  @ENABLE_EXTERN_TEMPLATE_TRUE@	sstream-inst.cc \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	streambuf-inst.cc \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	string-inst.cc \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	wlocale-inst.cc \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	wstring-inst.cc
  
  libc__11convenience_la_SOURCES = $(sources)  $(inst_sources)
  
--- 423,432 ----
  @ENABLE_EXTERN_TEMPLATE_TRUE@	sstream-inst.cc \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	streambuf-inst.cc \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	string-inst.cc \
+ @ENABLE_EXTERN_TEMPLATE_TRUE@	string-io-inst.cc \
  @ENABLE_EXTERN_TEMPLATE_TRUE@	wlocale-inst.cc \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	wstring-inst.cc \
! @ENABLE_EXTERN_TEMPLATE_TRUE@	wstring-io-inst.cc
  
  libc__11convenience_la_SOURCES = $(sources)  $(inst_sources)
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/codecvt.cc gcc-6.5.0/libstdc++-v3/src/c++11/codecvt.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/codecvt.cc	Fri Mar 17 19:28:29 2017
--- gcc-6.5.0/libstdc++-v3/src/c++11/codecvt.cc	Wed Aug  8 15:40:17 2018
*************** do_in(state_type&, const extern_type* __
*** 1086,1092 ****
      reinterpret_cast<char16_t*>(__to),
      reinterpret_cast<char16_t*>(__to_end)
    };
!   auto res = ucs2_in(from, to, _M_maxcode, _M_mode);
  #elif __SIZEOF_WCHAR_T__ == 4
    range<char32_t> to{
      reinterpret_cast<char32_t*>(__to),
--- 1086,1097 ----
      reinterpret_cast<char16_t*>(__to),
      reinterpret_cast<char16_t*>(__to_end)
    };
! #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
!   codecvt_mode mode = {};
! #else
!   codecvt_mode mode = little_endian;
! #endif
!   auto res = ucs2_in(from, to, _M_maxcode, mode);
  #elif __SIZEOF_WCHAR_T__ == 4
    range<char32_t> to{
      reinterpret_cast<char32_t*>(__to),
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/cow-string-inst.cc gcc-6.5.0/libstdc++-v3/src/c++11/cow-string-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/cow-string-inst.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/cow-string-inst.cc	Mon Sep 18 12:57:05 2017
***************
*** 29,63 ****
  #define _GLIBCXX_USE_CXX11_ABI 0
  #include "string-inst.cc"
  
- #include <istream>
- #include <ostream>
- 
  #if ! _GLIBCXX_USE_DUAL_ABI
  # error This file should not be compiled for this configuration.
  #endif
  
- namespace std _GLIBCXX_VISIBILITY(default)
- {
- _GLIBCXX_BEGIN_NAMESPACE_VERSION
- 
-   // These came from c++98/misc-inst.cc, repeat them for COW string
-   // string related to iostreams.
-   template 
-     basic_istream<char>& 
-     operator>>(basic_istream<char>&, string&);
-   template 
-     basic_ostream<char>& 
-     operator<<(basic_ostream<char>&, const string&);
-   template 
-     basic_istream<char>& 
-     getline(basic_istream<char>&, string&, char);
-   template 
-     basic_istream<char>& 
-     getline(basic_istream<char>&, string&);
- 
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
- 
  #ifdef  _GLIBCXX_USE_C99_STDINT_TR1
  #include <random>
  #if defined __i386__ || defined __x86_64__
--- 29,38 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/cow-string-io-inst.cc gcc-6.5.0/libstdc++-v3/src/c++11/cow-string-io-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/cow-string-io-inst.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/src/c++11/cow-string-io-inst.cc	Mon Sep 18 12:57:05 2017
***************
*** 0 ****
--- 1,59 ----
+ // Reference-counted COW string instantiations for I/O -*- C++ -*-
+ 
+ // Copyright (C) 2014-2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // Under Section 7 of GPL version 3, you are granted additional
+ // permissions described in the GCC Runtime Library Exception, version
+ // 3.1, as published by the Free Software Foundation.
+ 
+ // You should have received a copy of the GNU General Public License and
+ // a copy of the GCC Runtime Library Exception along with this program;
+ // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ // <http://www.gnu.org/licenses/>.
+ 
+ //
+ // ISO C++ 14882: 21  Strings library
+ //
+ 
+ #define _GLIBCXX_USE_CXX11_ABI 0
+ #include <istream>
+ #include <ostream>
+ 
+ #if ! _GLIBCXX_USE_DUAL_ABI
+ # error This file should not be compiled for this configuration.
+ #endif
+ 
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+   // The equivalent SSO string instantiations are in c++98/misc-inst.cc,
+   // repeat them for COW string
+ 
+   // string related to iostreams.
+   template
+     basic_istream<char>&
+     operator>>(basic_istream<char>&, string&);
+   template
+     basic_ostream<char>&
+     operator<<(basic_ostream<char>&, const string&);
+   template
+     basic_istream<char>&
+     getline(basic_istream<char>&, string&, char);
+   template
+     basic_istream<char>&
+     getline(basic_istream<char>&, string&);
+ 
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/cow-wstring-inst.cc gcc-6.5.0/libstdc++-v3/src/c++11/cow-wstring-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/cow-wstring-inst.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/cow-wstring-inst.cc	Mon Sep 18 12:57:05 2017
***************
*** 33,64 ****
  #define C wchar_t
  #include "string-inst.cc"
  
- #include <ostream>
- #include <istream>
- 
  #if ! _GLIBCXX_USE_DUAL_ABI
  # error This file should not be compiled for this configuration.
  #endif
  
- namespace std _GLIBCXX_VISIBILITY(default)
- {
- _GLIBCXX_BEGIN_NAMESPACE_VERSION
- 
-   // XXX these came from c++98/misc-inst.cc, repeat them for COW string
-   // string related to iostreams
-   template 
-     basic_istream<wchar_t>& 
-     operator>>(basic_istream<wchar_t>&, wstring&);
-   template 
-     basic_ostream<wchar_t>& 
-     operator<<(basic_ostream<wchar_t>&, const wstring&);
-   template 
-     basic_istream<wchar_t>& 
-     getline(basic_istream<wchar_t>&, wstring&, wchar_t);
-   template 
-     basic_istream<wchar_t>& 
-     getline(basic_istream<wchar_t>&, wstring&);
- 
- _GLIBCXX_END_NAMESPACE_VERSION
- } // namespace
  #endif
--- 33,40 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/cow-wstring-io-inst.cc gcc-6.5.0/libstdc++-v3/src/c++11/cow-wstring-io-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/cow-wstring-io-inst.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/src/c++11/cow-wstring-io-inst.cc	Mon Sep 18 12:57:05 2017
***************
*** 0 ****
--- 1,63 ----
+ // Reference-counted COW wide string instantiations for I/O -*- C++ -*-
+ 
+ // Copyright (C) 2014-2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // Under Section 7 of GPL version 3, you are granted additional
+ // permissions described in the GCC Runtime Library Exception, version
+ // 3.1, as published by the Free Software Foundation.
+ 
+ // You should have received a copy of the GNU General Public License and
+ // a copy of the GCC Runtime Library Exception along with this program;
+ // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ // <http://www.gnu.org/licenses/>.
+ 
+ //
+ // ISO C++ 14882: 21  Strings library
+ //
+ 
+ #define _GLIBCXX_USE_CXX11_ABI 0
+ #include <bits/c++config.h>
+ 
+ #ifdef _GLIBCXX_USE_WCHAR_T
+ #include <ostream>
+ #include <istream>
+ 
+ #if ! _GLIBCXX_USE_DUAL_ABI
+ # error This file should not be compiled for this configuration.
+ #endif
+ 
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+   // The equivalent SSO wstring instantiations are in c++98/misc-inst.cc,
+   // repeat them for COW wstring
+ 
+   // string related to iostreams
+   template
+     basic_istream<wchar_t>&
+     operator>>(basic_istream<wchar_t>&, wstring&);
+   template
+     basic_ostream<wchar_t>&
+     operator<<(basic_ostream<wchar_t>&, const wstring&);
+   template
+     basic_istream<wchar_t>&
+     getline(basic_istream<wchar_t>&, wstring&, wchar_t);
+   template
+     basic_istream<wchar_t>&
+     getline(basic_istream<wchar_t>&, wstring&);
+ 
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
+ #endif
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/cxx11-ios_failure.cc gcc-6.5.0/libstdc++-v3/src/c++11/cxx11-ios_failure.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/cxx11-ios_failure.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/cxx11-ios_failure.cc	Wed Aug  8 15:40:11 2018
***************
*** 28,33 ****
--- 28,35 ----
  
  #define _GLIBCXX_USE_CXX11_ABI 1
  #include <ios>
+ #include <typeinfo>
+ #include <cxxabi.h>
  
  #if ! _GLIBCXX_USE_DUAL_ABI
  # error This file should not be compiled for this configuration.
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 91,95 ****
--- 93,121 ----
    ios_base::failure::what() const throw()
    { return runtime_error::what(); }
  
+   // __throw_ios_failure() is defined in src/c++98/ios_failure.cc
+ 
+ #if __cpp_rtti
+   // If RTTI is enabled the exception type thrown will use these functions to
+   // construct/destroy a ios::failure[abi:cxx11] object in a buffer,
+   // and to catch that object via a handler of the [abi:cxx11] type.
+   void
+   __construct_ios_failure(void* buf, const char* msg)
+   { ::new(buf) ios_base::failure(msg); }
+ 
+   void
+   __destroy_ios_failure(void* buf)
+   { static_cast<ios_base::failure*>(buf)->~failure(); }
+ 
+   bool
+   __is_ios_failure_handler(const __cxxabiv1::__class_type_info* type)
+   { return *type == typeid(ios::failure); }
+ 
+   // static assertions to ensure ios::failure fits in a buffer
+   // with the same size and alignment as system_error:
+   static_assert(sizeof(ios::failure) <= sizeof(system_error), "");
+   static_assert(__alignof(ios::failure) <= __alignof(system_error), "");
+ #endif // __cpp_rtti
+ 
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/functexcept.cc gcc-6.5.0/libstdc++-v3/src/c++11/functexcept.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/functexcept.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/functexcept.cc	Mon Sep 18 12:57:05 2017
***************
*** 20,39 ****
  // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  // <http://www.gnu.org/licenses/>.
  
- // We don't want to change the type thrown by __throw_ios_failure (yet?)
- #define _GLIBCXX_USE_CXX11_ABI 0
- 
  #include <bits/functexcept.h>
  #include <cstdlib>
  #include <exception>
  #include <stdexcept>
  #include <new>
  #include <typeinfo>
- #include <ios>
- #include <system_error>
- #include <future>
- #include <functional>
- #include <bits/regex_error.h>
  #include <stdarg.h>
  
  #ifdef _GLIBCXX_USE_NLS
--- 20,31 ----
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 121,147 ****
    __throw_underflow_error(const char* __s __attribute__((unused)))
    { _GLIBCXX_THROW_OR_ABORT(underflow_error(_(__s))); }
  
-   void
-   __throw_ios_failure(const char* __s __attribute__((unused)))
-   { _GLIBCXX_THROW_OR_ABORT(ios_base::failure(_(__s))); }
- 
-   void
-   __throw_system_error(int __i __attribute__((unused)))
-   { _GLIBCXX_THROW_OR_ABORT(system_error(error_code(__i,
- 						    generic_category()))); }
- 
-   void
-   __throw_future_error(int __i __attribute__((unused)))
-   { _GLIBCXX_THROW_OR_ABORT(future_error(make_error_code(future_errc(__i)))); }
- 
-   void
-   __throw_bad_function_call()
-   { _GLIBCXX_THROW_OR_ABORT(bad_function_call()); }
- 
-   void
-   __throw_regex_error(regex_constants::error_type __ecode
- 		      __attribute__((unused)))
-   { _GLIBCXX_THROW_OR_ABORT(regex_error(__ecode)); }
- 
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
--- 113,117 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/functional.cc gcc-6.5.0/libstdc++-v3/src/c++11/functional.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/functional.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/functional.cc	Mon Sep 18 12:57:05 2017
***************
*** 23,33 ****
--- 23,38 ----
  // <http://www.gnu.org/licenses/>.
  
  #include <functional>
+ #include <bits/functexcept.h>
  
  namespace std _GLIBCXX_VISIBILITY(default)
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
+   void
+   __throw_bad_function_call()
+   { _GLIBCXX_THROW_OR_ABORT(bad_function_call()); }
+ 
    bad_function_call::~bad_function_call() noexcept = default;
  
    const char*
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/future.cc gcc-6.5.0/libstdc++-v3/src/c++11/future.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/future.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/future.cc	Mon Sep 18 12:57:05 2017
***************
*** 23,28 ****
--- 23,29 ----
  // <http://www.gnu.org/licenses/>.
  
  #include <future>
+ #include <bits/functexcept.h>
  
  namespace
  {
*************** namespace std _GLIBCXX_VISIBILITY(defaul
*** 70,75 ****
--- 71,80 ----
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
+   void
+   __throw_future_error(int __i __attribute__((unused)))
+   { _GLIBCXX_THROW_OR_ABORT(future_error(make_error_code(future_errc(__i)))); }
+ 
    const error_category& future_category() noexcept
    { return __future_category_instance(); }
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/regex.cc gcc-6.5.0/libstdc++-v3/src/c++11/regex.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/regex.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/regex.cc	Mon Sep 18 12:57:05 2017
***************
*** 24,34 ****
--- 24,40 ----
  
  #include <stdexcept>
  #include <bits/regex_error.h>
+ #include <bits/functexcept.h>
  
  namespace std _GLIBCXX_VISIBILITY(default)
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
+   void
+   __throw_regex_error(regex_constants::error_type __ecode
+ 		      __attribute__((unused)))
+   { _GLIBCXX_THROW_OR_ABORT(regex_error(__ecode)); }
+ 
    regex_error::regex_error(regex_constants::error_type __ecode)
    : std::runtime_error("regex_error"), _M_code(__ecode)
    { }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/snprintf_lite.cc gcc-6.5.0/libstdc++-v3/src/c++11/snprintf_lite.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/snprintf_lite.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/snprintf_lite.cc	Wed Sep 20 12:01:44 2017
*************** namespace __gnu_cxx {
*** 52,58 ****
      const size_t __len = __bufend - __buf + 1;
  
      const char __err[] = "not enough space for format expansion "
!       "(Please submit full bug report at http://gcc.gnu.org/bugs.html):\n    ";
      const size_t __errlen = sizeof(__err) - 1;
  
      char *const __e
--- 52,58 ----
      const size_t __len = __bufend - __buf + 1;
  
      const char __err[] = "not enough space for format expansion "
!       "(Please submit full bug report at https://gcc.gnu.org/bugs/):\n    ";
      const size_t __errlen = sizeof(__err) - 1;
  
      char *const __e
*************** namespace __gnu_cxx {
*** 71,89 ****
    // Returns number of characters appended, or -1 if BUFSIZE is too small.
    int __concat_size_t(char *__buf, size_t __bufsize, size_t __val)
    {
-     // __int_to_char is explicitly instantiated and available only for
-     // some, but not all, types. See locale-inst.cc.
- #ifdef _GLIBCXX_USE_LONG_LONG
-     unsigned long long __val2 = __val;
- #else
-     unsigned long __val2 = __val;
- #endif
      // Long enough for decimal representation.
!     int __ilen = 3 * sizeof(__val2);
      char *__cs = static_cast<char*>(__builtin_alloca(__ilen));
!     size_t __len = std::__int_to_char(__cs + __ilen, __val2,
! 				      std::__num_base::_S_atoms_out,
! 				      std::ios_base::dec, true);
      if (__bufsize < __len)
        return -1;
  
--- 71,87 ----
    // Returns number of characters appended, or -1 if BUFSIZE is too small.
    int __concat_size_t(char *__buf, size_t __bufsize, size_t __val)
    {
      // Long enough for decimal representation.
!     int __ilen = 3 * sizeof(__val);
      char *__cs = static_cast<char*>(__builtin_alloca(__ilen));
!     char* __out = __cs + __ilen;
!     do
!       {
! 	*--__out = "0123456789"[__val % 10];
! 	__val /= 10;
!       }
!     while (__val != 0);
!     size_t __len = __cs + __ilen - __out;
      if (__bufsize < __len)
        return -1;
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/sso_string.cc gcc-6.5.0/libstdc++-v3/src/c++11/sso_string.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/sso_string.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/src/c++11/sso_string.cc	Mon Sep 18 12:57:05 2017
***************
*** 0 ****
--- 1,107 ----
+ // Helper for accessing __cxx11::string from the ABI -*- C++ -*-
+ 
+ // Copyright (C) 2014-2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // Under Section 7 of GPL version 3, you are granted additional
+ // permissions described in the GCC Runtime Library Exception, version
+ // 3.1, as published by the Free Software Foundation.
+ 
+ // You should have received a copy of the GNU General Public License and
+ // a copy of the GCC Runtime Library Exception along with this program;
+ // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ // <http://www.gnu.org/licenses/>.
+ 
+ 
+ #define _GLIBCXX_USE_CXX11_ABI 1
+ #define __sso_string __sso_stringxxx
+ #include <string>
+ #include <stdexcept>
+ #undef __sso_string
+ 
+ #if ! _GLIBCXX_USE_DUAL_ABI
+ # error This file should not be compiled for this configuration.
+ #endif
+ 
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+ #pragma GCC diagnostic push
+ #pragma GCC diagnostic ignored "-Wabi-tag"
+   // Redefine __sso_string so that we can define and export its members
+   // in terms of the SSO std::string.
+   struct __sso_string
+   {
+     struct __str
+     {
+       const char* _M_p;
+       size_t _M_string_length;
+       char _M_local_buf[16];
+     };
+ 
+     union {
+       __str _M_s;
+       char _M_bytes[sizeof(_M_s)];
+       std::string _M_str;
+     };
+ 
+     __sso_string();
+     __sso_string(const std::string& s);
+     __sso_string(const char*, size_t n);
+     __sso_string(const __sso_string&) noexcept;
+     __sso_string& operator=(const __sso_string&) noexcept;
+     ~__sso_string();
+     __sso_string(__sso_string&&) noexcept;
+     __sso_string& operator=(__sso_string&&) noexcept;
+   };
+ #pragma GCC diagnostic pop
+ 
+   __sso_string::__sso_string() : _M_str() { }
+ 
+ #if _GLIBCXX_USE_CXX11_ABI
+   static_assert(sizeof(__sso_string) == sizeof(std::string),
+                 "sizeof(std::string) has changed");
+   static_assert(alignof(__sso_string) == alignof(std::string),
+                 "alignof(std::string) has changed");
+ 
+   // This constructor is defined in src/c++11/cow-stdexcept.cc for COW strings
+   __sso_string::__sso_string(const std::string& s) : _M_str(s) { }
+ #endif
+ 
+   __sso_string::__sso_string(const char* s, size_t n) : _M_str(s, n) { }
+ 
+   __sso_string::__sso_string(const __sso_string& s) noexcept
+   : _M_str(s._M_str) { }
+ 
+   __sso_string&
+   __sso_string::operator=(const __sso_string& s) noexcept
+   {
+     _M_str = s._M_str;
+     return *this;
+   }
+ 
+   __sso_string::~__sso_string() { _M_str.~basic_string(); }
+ 
+   __sso_string::__sso_string(__sso_string&& s) noexcept
+   : _M_str(std::move(s._M_str)) { }
+ 
+   __sso_string&
+   __sso_string::operator=(__sso_string&& s) noexcept
+   {
+     _M_str = std::move(s._M_str);
+     return *this;
+   }
+ 
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/string-io-inst.cc gcc-6.5.0/libstdc++-v3/src/c++11/string-io-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/string-io-inst.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/src/c++11/string-io-inst.cc	Mon Sep 18 12:57:05 2017
***************
*** 0 ****
--- 1,53 ----
+ // SSO string instantiations for I/O -*- C++ -*-
+ 
+ // Copyright (C) 1997-2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // Under Section 7 of GPL version 3, you are granted additional
+ // permissions described in the GCC Runtime Library Exception, version
+ // 3.1, as published by the Free Software Foundation.
+ 
+ // You should have received a copy of the GNU General Public License and
+ // a copy of the GCC Runtime Library Exception along with this program;
+ // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ // <http://www.gnu.org/licenses/>.
+ 
+ //
+ // ISO C++ 14882:
+ //
+ 
+ #define _GLIBCXX_USE_CXX11_ABI 1
+ #include <string>
+ #include <istream>
+ #include <ostream>
+ 
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+   // string related to iostreams
+   template
+     basic_istream<char>&
+     operator>>(basic_istream<char>&, string&);
+   template
+     basic_ostream<char>&
+     operator<<(basic_ostream<char>&, const string&);
+   template
+     basic_istream<char>&
+     getline(basic_istream<char>&, string&, char);
+   template
+     basic_istream<char>&
+     getline(basic_istream<char>&, string&);
+ 
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/system_error.cc gcc-6.5.0/libstdc++-v3/src/c++11/system_error.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/system_error.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++11/system_error.cc	Wed Aug  8 15:40:26 2018
***************
*** 29,34 ****
--- 29,35 ----
  #include <system_error>
  #include <bits/functexcept.h>
  #include <limits>
+ #include <errno.h>
  #undef __sso_string
  
  namespace
*************** namespace
*** 65,70 ****
--- 66,326 ----
        // _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
        return string(strerror(i));
      }
+ 
+     virtual std::error_condition
+     default_error_condition(int ev) const noexcept
+     {
+       switch (ev)
+       {
+       // List of errno macros from [cerrno.syn].
+       // C11 only defines EDOM, EILSEQ and ERANGE, the rest are from POSIX.
+       // They expand to integer constant expressions with type int,
+       // and distinct positive values, suitable for use in #if directives.
+       // POSIX adds more macros (but they're not defined on all targets,
+       // see config/os/*/error_constants.h), and POSIX allows
+       // EAGAIN == EWOULDBLOCK and ENOTSUP == EOPNOTSUPP.
+ 
+ #ifdef E2BIG
+       case E2BIG:
+ #endif
+ #ifdef EACCES
+       case EACCES:
+ #endif
+ #ifdef EADDRINUSE
+       case EADDRINUSE:
+ #endif
+ #ifdef EADDRNOTAVAIL
+       case EADDRNOTAVAIL:
+ #endif
+ #ifdef EAFNOSUPPORT
+       case EAFNOSUPPORT:
+ #endif
+ #ifdef EAGAIN
+       case EAGAIN:
+ #endif
+ #ifdef EALREADY
+       case EALREADY:
+ #endif
+ #ifdef EBADF
+       case EBADF:
+ #endif
+ #ifdef EBADMSG
+       case EBADMSG:
+ #endif
+ #ifdef EBUSY
+       case EBUSY:
+ #endif
+ #ifdef ECANCELED
+       case ECANCELED:
+ #endif
+ #ifdef ECHILD
+       case ECHILD:
+ #endif
+ #ifdef ECONNABORTED
+       case ECONNABORTED:
+ #endif
+ #ifdef ECONNREFUSED
+       case ECONNREFUSED:
+ #endif
+ #ifdef ECONNRESET
+       case ECONNRESET:
+ #endif
+ #ifdef EDEADLK
+       case EDEADLK:
+ #endif
+ #ifdef EDESTADDRREQ
+       case EDESTADDRREQ:
+ #endif
+       case EDOM:
+ #ifdef EEXIST
+       case EEXIST:
+ #endif
+ #ifdef EFAULT
+       case EFAULT:
+ #endif
+ #ifdef EFBIG
+       case EFBIG:
+ #endif
+ #ifdef EHOSTUNREACH
+       case EHOSTUNREACH:
+ #endif
+ #ifdef EIDRM
+       case EIDRM:
+ #endif
+       case EILSEQ:
+ #ifdef EINPROGRESS
+       case EINPROGRESS:
+ #endif
+ #ifdef EINTR
+       case EINTR:
+ #endif
+ #ifdef EINVAL
+       case EINVAL:
+ #endif
+ #ifdef EIO
+       case EIO:
+ #endif
+ #ifdef EISCONN
+       case EISCONN:
+ #endif
+ #ifdef EISDIR
+       case EISDIR:
+ #endif
+ #ifdef ELOOP
+       case ELOOP:
+ #endif
+ #ifdef EMFILE
+       case EMFILE:
+ #endif
+ #ifdef EMLINK
+       case EMLINK:
+ #endif
+ #ifdef EMSGSIZE
+       case EMSGSIZE:
+ #endif
+ #ifdef ENAMETOOLONG
+       case ENAMETOOLONG:
+ #endif
+ #ifdef ENETDOWN
+       case ENETDOWN:
+ #endif
+ #ifdef ENETRESET
+       case ENETRESET:
+ #endif
+ #ifdef ENETUNREACH
+       case ENETUNREACH:
+ #endif
+ #ifdef ENFILE
+       case ENFILE:
+ #endif
+ #ifdef ENOBUFS
+       case ENOBUFS:
+ #endif
+ #ifdef ENODATA
+       case ENODATA:
+ #endif
+ #ifdef ENODEV
+       case ENODEV:
+ #endif
+ #ifdef ENOENT
+       case ENOENT:
+ #endif
+ #ifdef ENOEXEC
+       case ENOEXEC:
+ #endif
+ #ifdef ENOLCK
+       case ENOLCK:
+ #endif
+ #ifdef ENOLINK
+       case ENOLINK:
+ #endif
+ #ifdef ENOMEM
+       case ENOMEM:
+ #endif
+ #ifdef ENOMSG
+       case ENOMSG:
+ #endif
+ #ifdef ENOPROTOOPT
+       case ENOPROTOOPT:
+ #endif
+ #ifdef ENOSPC
+       case ENOSPC:
+ #endif
+ #ifdef ENOSR
+       case ENOSR:
+ #endif
+ #ifdef ENOSTR
+       case ENOSTR:
+ #endif
+ #ifdef ENOSYS
+       case ENOSYS:
+ #endif
+ #ifdef ENOTCONN
+       case ENOTCONN:
+ #endif
+ #ifdef ENOTDIR
+       case ENOTDIR:
+ #endif
+ #if defined ENOTEMPTY && (!defined EEXIST || ENOTEMPTY != EEXIST)
+       // AIX sometimes uses the same value for EEXIST and ENOTEMPTY
+       case ENOTEMPTY:
+ #endif
+ #ifdef ENOTRECOVERABLE
+       case ENOTRECOVERABLE:
+ #endif
+ #ifdef ENOTSOCK
+       case ENOTSOCK:
+ #endif
+ #ifdef ENOTSUP
+       case ENOTSUP:
+ #endif
+ #ifdef ENOTTY
+       case ENOTTY:
+ #endif
+ #ifdef ENXIO
+       case ENXIO:
+ #endif
+ #if defined EOPNOTSUPP && (!defined ENOTSUP || EOPNOTSUPP != ENOTSUP)
+       case EOPNOTSUPP:
+ #endif
+ #ifdef EOVERFLOW
+       case EOVERFLOW:
+ #endif
+ #ifdef EOWNERDEAD
+       case EOWNERDEAD:
+ #endif
+ #ifdef EPERM
+       case EPERM:
+ #endif
+ #ifdef EPIPE
+       case EPIPE:
+ #endif
+ #ifdef EPROTO
+       case EPROTO:
+ #endif
+ #ifdef EPROTONOSUPPORT
+       case EPROTONOSUPPORT:
+ #endif
+ #ifdef EPROTOTYPE
+       case EPROTOTYPE:
+ #endif
+       case ERANGE:
+ #ifdef EROFS
+       case EROFS:
+ #endif
+ #ifdef ESPIPE
+       case ESPIPE:
+ #endif
+ #ifdef ESRCH
+       case ESRCH:
+ #endif
+ #ifdef ETIME
+       case ETIME:
+ #endif
+ #ifdef ETIMEDOUT
+       case ETIMEDOUT:
+ #endif
+ #ifdef ETXTBSY
+       case ETXTBSY:
+ #endif
+ #if defined EWOULDBLOCK && (!defined EAGAIN || EWOULDBLOCK != EAGAIN)
+       case EWOULDBLOCK:
+ #endif
+ #ifdef EXDEV
+       case EXDEV:
+ #endif
+         return std::error_condition(ev, std::generic_category());
+ 
+       /* Additional system-dependent mappings from non-standard error codes
+        * to one of the POSIX values above would go here, e.g.
+       case EBLAH:
+ 	return std::error_condition(EINVAL, std::generic_category());
+        */
+ 
+       default:
+ 	return std::error_condition(ev, std::system_category());
+       }
+     }
    };
  
    const generic_error_category generic_category_instance{};
*************** namespace std _GLIBCXX_VISIBILITY(defaul
*** 75,80 ****
--- 331,342 ----
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
+   void
+   __throw_system_error(int __i __attribute__((unused)))
+   {
+     _GLIBCXX_THROW_OR_ABORT(system_error(error_code(__i, generic_category())));
+   }
+ 
    error_category::~error_category() noexcept = default;
  
    const error_category& 
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 112,184 ****
    }
  #endif
  
- #if _GLIBCXX_USE_DUAL_ABI
- #pragma GCC diagnostic push
- #pragma GCC diagnostic ignored "-Wabi-tag"
-   // Redefine __sso_string so that we can define and export its members
-   // in terms of the SSO std::string.
-   struct __sso_string
-   {
-     struct __str
-     {
-       const char* _M_p;
-       size_t _M_string_length;
-       char _M_local_buf[16];
-     };
- 
-     union {
-       __str _M_s;
-       char _M_bytes[sizeof(_M_s)];
-       std::string _M_str;
-     };
- 
-     __sso_string();
-     __sso_string(const std::string& s);
-     __sso_string(const char*, size_t n);
-     __sso_string(const __sso_string&) noexcept;
-     __sso_string& operator=(const __sso_string&) noexcept;
-     ~__sso_string();
-     __sso_string(__sso_string&&) noexcept;
-     __sso_string& operator=(__sso_string&&) noexcept;
-   };
- #pragma GCC diagnostic pop
- 
-   __sso_string::__sso_string() : _M_str() { }
- 
- #if _GLIBCXX_USE_CXX11_ABI
-   static_assert(sizeof(__sso_string) == sizeof(std::string),
-                 "sizeof(std::string) has changed");
-   static_assert(alignof(__sso_string) == alignof(std::string),
-                 "alignof(std::string) has changed");
- 
-   // This constructor is defined in src/c++11/cow-stdexcept.cc for COW strings
-   __sso_string::__sso_string(const std::string& s) : _M_str(s) { }
- #endif
- 
-   __sso_string::__sso_string(const char* s, size_t n) : _M_str(s, n) { }
- 
-   __sso_string::__sso_string(const __sso_string& s) noexcept
-   : _M_str(s._M_str) { }
- 
-   __sso_string&
-   __sso_string::operator=(const __sso_string& s) noexcept
-   {
-     _M_str = s._M_str;
-     return *this;
-   }
- 
-   __sso_string::~__sso_string() { _M_str.~basic_string(); }
- 
-   __sso_string::__sso_string(__sso_string&& s) noexcept
-   : _M_str(std::move(s._M_str)) { }
- 
-   __sso_string&
-   __sso_string::operator=(__sso_string&& s) noexcept
-   {
-     _M_str = std::move(s._M_str);
-     return *this;
-   }
- #endif // _GLIBCXX_USE_DUAL_ABI
- 
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
--- 374,378 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++11/wstring-io-inst.cc gcc-6.5.0/libstdc++-v3/src/c++11/wstring-io-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++11/wstring-io-inst.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/src/c++11/wstring-io-inst.cc	Mon Sep 18 12:57:05 2017
***************
*** 0 ****
--- 1,55 ----
+ // SSO string instantiations for I/O -*- C++ -*-
+ 
+ // Copyright (C) 1997-2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // Under Section 7 of GPL version 3, you are granted additional
+ // permissions described in the GCC Runtime Library Exception, version
+ // 3.1, as published by the Free Software Foundation.
+ 
+ // You should have received a copy of the GNU General Public License and
+ // a copy of the GCC Runtime Library Exception along with this program;
+ // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ // <http://www.gnu.org/licenses/>.
+ 
+ //
+ // ISO C++ 14882:
+ //
+ 
+ #define _GLIBCXX_USE_CXX11_ABI 1
+ #include <string>
+ #include <istream>
+ #include <ostream>
+ 
+ namespace std _GLIBCXX_VISIBILITY(default)
+ {
+ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+ 
+   // string related to iostreams
+ #ifdef _GLIBCXX_USE_WCHAR_T
+   template
+     basic_istream<wchar_t>&
+     operator>>(basic_istream<wchar_t>&, wstring&);
+   template
+     basic_ostream<wchar_t>&
+     operator<<(basic_ostream<wchar_t>&, const wstring&);
+   template
+     basic_istream<wchar_t>&
+     getline(basic_istream<wchar_t>&, wstring&, wchar_t);
+   template
+     basic_istream<wchar_t>&
+     getline(basic_istream<wchar_t>&, wstring&);
+ #endif
+ 
+ _GLIBCXX_END_NAMESPACE_VERSION
+ } // namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++98/Makefile.am gcc-6.5.0/libstdc++-v3/src/c++98/Makefile.am
*** gcc-6.4.0/libstdc++-v3/src/c++98/Makefile.am	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++98/Makefile.am	Wed Aug  8 15:40:11 2018
*************** parallel_settings.lo: parallel_settings.
*** 215,220 ****
--- 215,240 ----
  parallel_settings.o: parallel_settings.cc
  	$(CXXCOMPILE) $(PARALLEL_FLAGS) -c $<
  
+ if ENABLE_DUAL_ABI
+ # Rewrite the type info for __iosfailure.
+ rewrite_ios_failure_typeinfo = sed -e '/^_*_ZTISt12__iosfailure:/,/_ZTVN10__cxxabiv120__si_class_type_infoE/s/_ZTVN10__cxxabiv120__si_class_type_infoE/_ZTVSt22__iosfailure_type_info/'
+ 
+ ios_failure-lt.s: ios_failure.cc
+ 	$(LTCXXCOMPILE) -S $< -o tmp-ios_failure-lt.s
+ 	-test -f tmp-ios_failure-lt.o && mv -f tmp-ios_failure-lt.o tmp-ios_failure-lt.s
+ 	$(rewrite_ios_failure_typeinfo) tmp-$@ > $@
+ 	-rm -f tmp-$@
+ ios_failure.s: ios_failure.cc
+ 	$(CXXCOMPILE) -S $< -o tmp-$@
+ 	$(rewrite_ios_failure_typeinfo) tmp-$@ > $@
+ 	-rm -f tmp-$@
+ 
+ ios_failure.lo: ios_failure-lt.s
+ 	$(LTCXXCOMPILE) -g0 -c $< -o $@
+ ios_failure.o: ios_failure.s
+ 	$(CXXCOMPILE) -g0 -c $<
+ endif
+ 
  # AM_CXXFLAGS needs to be in each subdirectory so that it can be
  # modified in a per-library or per-sub-library way.  Need to manually
  # set this option because CONFIG_CXXFLAGS has to be after
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++98/Makefile.in gcc-6.5.0/libstdc++-v3/src/c++98/Makefile.in
*** gcc-6.4.0/libstdc++-v3/src/c++98/Makefile.in	Wed Sep 30 20:04:43 2015
--- gcc-6.5.0/libstdc++-v3/src/c++98/Makefile.in	Wed Aug  8 15:40:11 2018
*************** GLIBCXX_INCLUDE_DIR = $(glibcxx_builddir
*** 437,442 ****
--- 437,445 ----
  # Use special rules for parallel mode compilation.
  PARALLEL_FLAGS = -D_GLIBCXX_PARALLEL 
  
+ # Rewrite the type info for __iosfailure.
+ @ENABLE_DUAL_ABI_TRUE@rewrite_ios_failure_typeinfo = sed -e '/^_*_ZTISt12__iosfailure:/,/_ZTVN10__cxxabiv120__si_class_type_infoE/s/_ZTVN10__cxxabiv120__si_class_type_infoE/_ZTVSt22__iosfailure_type_info/'
+ 
  # AM_CXXFLAGS needs to be in each subdirectory so that it can be
  # modified in a per-library or per-sub-library way.  Need to manually
  # set this option because CONFIG_CXXFLAGS has to be after
*************** parallel_settings.lo: parallel_settings.
*** 826,831 ****
--- 829,849 ----
  parallel_settings.o: parallel_settings.cc
  	$(CXXCOMPILE) $(PARALLEL_FLAGS) -c $<
  
+ @ENABLE_DUAL_ABI_TRUE@ios_failure-lt.s: ios_failure.cc
+ @ENABLE_DUAL_ABI_TRUE@	$(LTCXXCOMPILE) -S $< -o tmp-ios_failure-lt.s
+ @ENABLE_DUAL_ABI_TRUE@	-test -f tmp-ios_failure-lt.o && mv -f tmp-ios_failure-lt.o tmp-ios_failure-lt.s
+ @ENABLE_DUAL_ABI_TRUE@	$(rewrite_ios_failure_typeinfo) tmp-$@ > $@
+ @ENABLE_DUAL_ABI_TRUE@	-rm -f tmp-$@
+ @ENABLE_DUAL_ABI_TRUE@ios_failure.s: ios_failure.cc
+ @ENABLE_DUAL_ABI_TRUE@	$(CXXCOMPILE) -S $< -o tmp-$@
+ @ENABLE_DUAL_ABI_TRUE@	$(rewrite_ios_failure_typeinfo) tmp-$@ > $@
+ @ENABLE_DUAL_ABI_TRUE@	-rm -f tmp-$@
+ 
+ @ENABLE_DUAL_ABI_TRUE@ios_failure.lo: ios_failure-lt.s
+ @ENABLE_DUAL_ABI_TRUE@	$(LTCXXCOMPILE) -c $< -o $@
+ @ENABLE_DUAL_ABI_TRUE@ios_failure.o: ios_failure.s
+ @ENABLE_DUAL_ABI_TRUE@	$(CXXCOMPILE) -c $<
+ 
  # Tell versions [3.59,3.63) of GNU make to not export all variables.
  # Otherwise a system limit (for SysV at least) may be exceeded.
  .NOEXPORT:
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++98/ios_failure.cc gcc-6.5.0/libstdc++-v3/src/c++98/ios_failure.cc
*** gcc-6.4.0/libstdc++-v3/src/c++98/ios_failure.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++98/ios_failure.cc	Wed Aug  8 15:40:11 2018
***************
*** 29,34 ****
--- 29,46 ----
  #define _GLIBCXX_USE_CXX11_ABI 0
  #include <ios>
  
+ #if _GLIBCXX_USE_DUAL_ABI && __cpp_rtti
+ #include <cxxabi.h>
+ #include <typeinfo>
+ #endif
+ 
+ #ifdef _GLIBCXX_USE_NLS
+ # include <libintl.h>
+ # define _(msgid)   gettext (msgid)
+ #else
+ # define _(msgid)   (msgid)
+ #endif
+ 
  namespace std _GLIBCXX_VISIBILITY(default)
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
*************** _GLIBCXX_BEGIN_NAMESPACE_VERSION
*** 43,47 ****
--- 55,134 ----
    ios_base::failure::what() const throw()
    { return _M_msg.c_str(); }
  
+ #if _GLIBCXX_USE_DUAL_ABI && __cpp_rtti
+   // These functions are defined in src/c++11/cxx11-ios_failure.cc
+   extern void __construct_ios_failure(void*, const char*);
+   extern void __destroy_ios_failure(void*);
+   extern bool __is_ios_failure_handler(const __cxxabiv1::__class_type_info*);
+ 
+   // The type thrown to report errors during stream buffer operations.
+   // In addition to the gcc4-compatible ios::failure base class it also has a
+   // member of the ios::failure[abi:cxx11] type (in an opaque buffer).
+   struct __iosfailure : std::ios::failure
+   {
+     __iosfailure(const char* s) : failure(s)
+     { __construct_ios_failure(buf, failure::what()); }
+ 
+     ~__iosfailure() throw()
+     { __destroy_ios_failure(buf); }
+ 
+     // Type that is layout-compatible with std::system_error
+     struct __system_error : std::runtime_error
+     {
+       // Type that is layout-compatible with std::error_code
+       struct error_code
+       {
+ 	error_code() { }
+       private:
+ 	int		_M_value;
+ 	const void*	_M_cat;
+       } _M_code;
+     };
+ 
+     // Use __system_error as a proxy for the ios::failure[abi:cxx11]
+     // (which can't be declared here because _GLIBCXX_USE_CXX11_ABI == 0).
+     // There are assertions in src/c++11/cxx11-ios_failure.cc to ensure the
+     // size and alignment assumptions are valid.
+     __attribute__((aligned(__alignof(__system_error))))
+       unsigned char buf[sizeof(__system_error)];
+   };
+ 
+   // Custom type info for __ios_failure.
+   class __iosfailure_type_info : __cxxabiv1::__si_class_type_info
+   {
+     ~__iosfailure_type_info();
+ 
+     bool
+     __do_upcast (const __class_type_info *dst_type,
+ 		 void **obj_ptr) const;
+   };
+ 
+   __iosfailure_type_info::~__iosfailure_type_info() { }
+ 
+   // This function gets called to see if an exception of type
+   // __ios_failure can be upcast to the type in a catch handler.
+   bool
+   __iosfailure_type_info::__do_upcast(const __class_type_info *dst_type,
+ 				      void **obj_ptr) const
+   {
+     // If the handler is for the ios::failure[abi:cxx11] type then
+     // catch the object stored in __ios_failure::buf instead of
+     // the __ios_failure exception object itself.
+     if (__is_ios_failure_handler(dst_type))
+       {
+ 	*obj_ptr = static_cast<__iosfailure*>(*obj_ptr)->buf;
+ 	return true;
+       }
+     // Otherwise proceeed as normal to see if the handler matches.
+     return __class_type_info::__do_upcast(dst_type, obj_ptr);
+   }
+ #else // _GLIBCXX_USE_DUAL_ABI && __cpp_rtti
+   using __iosfailure = ios::failure;
+ #endif
+ 
+   void
+   __throw_ios_failure(const char* __s __attribute__((unused)))
+   { _GLIBCXX_THROW_OR_ABORT(__iosfailure(_(__s))); }
+ 
  _GLIBCXX_END_NAMESPACE_VERSION
  } // namespace
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/c++98/misc-inst.cc gcc-6.5.0/libstdc++-v3/src/c++98/misc-inst.cc
*** gcc-6.4.0/libstdc++-v3/src/c++98/misc-inst.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/src/c++98/misc-inst.cc	Mon Sep 18 12:57:05 2017
*************** namespace std _GLIBCXX_VISIBILITY(defaul
*** 36,69 ****
  {
  _GLIBCXX_BEGIN_NAMESPACE_VERSION
  
-   // string related to iostreams
-   template 
-     basic_istream<char>& 
-     operator>>(basic_istream<char>&, string&);
-   template 
-     basic_ostream<char>& 
-     operator<<(basic_ostream<char>&, const string&);
-   template 
-     basic_istream<char>& 
-     getline(basic_istream<char>&, string&, char);
-   template 
-     basic_istream<char>& 
-     getline(basic_istream<char>&, string&);
- #ifdef _GLIBCXX_USE_WCHAR_T
-   template 
-     basic_istream<wchar_t>& 
-     operator>>(basic_istream<wchar_t>&, wstring&);
-   template 
-     basic_ostream<wchar_t>& 
-     operator<<(basic_ostream<wchar_t>&, const wstring&);
-   template 
-     basic_istream<wchar_t>& 
-     getline(basic_istream<wchar_t>&, wstring&, wchar_t);
-   template 
-     basic_istream<wchar_t>& 
-     getline(basic_istream<wchar_t>&, wstring&);
- #endif
- 
  #if _GLIBCXX_USE_CXX11_ABI
    // C++98 members that are not instantiated by src/c++11/string-inst.cc
    // because they changed in C++11 to take const_iterator parameters.
--- 36,41 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/src/filesystem/ops.cc gcc-6.5.0/libstdc++-v3/src/filesystem/ops.cc
*** gcc-6.4.0/libstdc++-v3/src/filesystem/ops.cc	Mon Dec 12 14:09:39 2016
--- gcc-6.5.0/libstdc++-v3/src/filesystem/ops.cc	Thu May  3 20:39:31 2018
*************** namespace
*** 443,490 ****
  	return false;
        }
  
  #ifdef _GLIBCXX_USE_SENDFILE
      off_t offset = 0;
!     const auto n = ::sendfile(out.fd, in.fd, &offset, from_st->st_size);
!     if (n < 0 && (errno == ENOSYS || errno == EINVAL))
        {
! #endif
! 	__gnu_cxx::stdio_filebuf<char> sbin(in.fd, std::ios::in);
! 	__gnu_cxx::stdio_filebuf<char> sbout(out.fd, std::ios::out);
! 	if (sbin.is_open())
! 	  in.fd = -1;
! 	if (sbout.is_open())
! 	  out.fd = -1;
! 	if (from_st->st_size && !(std::ostream(&sbout) << &sbin))
! 	  {
! 	    ec = std::make_error_code(std::errc::io_error);
! 	    return false;
! 	  }
! 	if (!sbout.close() || !sbin.close())
  	  {
  	    ec.assign(errno, std::generic_category());
  	    return false;
  	  }
- 
  	ec.clear();
  	return true;
  
  #ifdef _GLIBCXX_USE_SENDFILE
        }
!     if (n != from_st->st_size)
        {
! 	ec.assign(errno, std::generic_category());
  	return false;
        }
!     if (!out.close() || !in.close())
        {
  	ec.assign(errno, std::generic_category());
  	return false;
        }
- 
      ec.clear();
      return true;
- #endif
    }
  }
  #endif
--- 443,510 ----
  	return false;
        }
  
+     size_t count = from_st->st_size;
  #ifdef _GLIBCXX_USE_SENDFILE
      off_t offset = 0;
!     ssize_t n = ::sendfile(out.fd, in.fd, &offset, count);
!     if (n < 0 && errno != ENOSYS && errno != EINVAL)
        {
! 	ec.assign(errno, std::generic_category());
! 	return false;
!       }
!     if ((size_t)n == count)
!       {
! 	if (!out.close() || !in.close())
  	  {
  	    ec.assign(errno, std::generic_category());
  	    return false;
  	  }
  	ec.clear();
  	return true;
+       }
+     else if (n > 0)
+       count -= n;
+ #endif // _GLIBCXX_USE_SENDFILE
+ 
+     using std::ios;
+     __gnu_cxx::stdio_filebuf<char> sbin(in.fd, ios::in|ios::binary);
+     __gnu_cxx::stdio_filebuf<char> sbout(out.fd, ios::out|ios::binary);
+ 
+     if (sbin.is_open())
+       in.fd = -1;
+     if (sbout.is_open())
+       out.fd = -1;
  
  #ifdef _GLIBCXX_USE_SENDFILE
+     if (n != 0)
+       {
+ 	if (n < 0)
+ 	  n = 0;
+ 
+ 	const auto p1 = sbin.pubseekoff(n, ios::beg, ios::in);
+ 	const auto p2 = sbout.pubseekoff(n, ios::beg, ios::out);
+ 
+ 	const std::streampos errpos(std::streamoff(-1));
+ 	if (p1 == errpos || p2 == errpos)
+ 	  {
+ 	    ec = std::make_error_code(std::errc::io_error);
+ 	    return false;
+ 	  }
        }
! #endif
! 
!     if (count && !(std::ostream(&sbout) << &sbin))
        {
! 	ec = std::make_error_code(std::errc::io_error);
  	return false;
        }
!     if (!sbout.close() || !sbin.close())
        {
  	ec.assign(errno, std::generic_category());
  	return false;
        }
      ec.clear();
      return true;
    }
  }
  #endif
*************** fs::read_symlink(const path& p)
*** 1199,1224 ****
  
  fs::path fs::read_symlink(const path& p, error_code& ec)
  {
  #ifdef _GLIBCXX_HAVE_SYS_STAT_H
    stat_type st;
    if (::lstat(p.c_str(), &st))
      {
        ec.assign(errno, std::generic_category());
!       return {};
      }
!   std::string buf(st.st_size, '\0');
!   ssize_t len = ::readlink(p.c_str(), &buf.front(), buf.size());
!   if (len == -1)
      {
!       ec.assign(errno, std::generic_category());
!       return {};
      }
!   ec.clear();
!   return path{buf.data(), buf.data()+len};
  #else
    ec = std::make_error_code(std::errc::not_supported);
-   return {};
  #endif
  }
  
  
--- 1219,1263 ----
  
  fs::path fs::read_symlink(const path& p, error_code& ec)
  {
+   path result;
  #ifdef _GLIBCXX_HAVE_SYS_STAT_H
    stat_type st;
    if (::lstat(p.c_str(), &st))
      {
        ec.assign(errno, std::generic_category());
!       return result;
      }
!   std::string buf(st.st_size ? st.st_size + 1 : 128, '\0');
!   do
      {
!       ssize_t len = ::readlink(p.c_str(), &buf.front(), buf.size());
!       if (len == -1)
! 	{
! 	  ec.assign(errno, std::generic_category());
! 	  return result;
! 	}
!       else if (len == (ssize_t)buf.size())
! 	{
! 	  if (buf.size() > 4096)
! 	    {
! 	      ec.assign(ENAMETOOLONG, std::generic_category());
! 	      return result;
! 	    }
! 	  buf.resize(buf.size() * 2);
! 	}
!       else
! 	{
! 	  buf.resize(len);
! 	  result.assign(buf);
! 	  ec.clear();
! 	  break;
! 	}
      }
!   while (true);
  #else
    ec = std::make_error_code(std::errc::not_supported);
  #endif
+   return result;
  }
  
  
*************** fs::remove(const path& p)
*** 1235,1250 ****
  bool
  fs::remove(const path& p, error_code& ec) noexcept
  {
!   if (exists(symlink_status(p, ec)))
      {
!       if (::remove(p.c_str()) == 0)
! 	{
! 	  ec.clear();
! 	  return true;
! 	}
!       else
! 	ec.assign(errno, std::generic_category());
      }
    return false;
  }
  
--- 1274,1288 ----
  bool
  fs::remove(const path& p, error_code& ec) noexcept
  {
!     if (::remove(p.c_str()) == 0)
      {
!       ec.clear();
!       return true;
      }
+   else if (errno == ENOENT)
+     ec.clear();
+   else
+     ec.assign(errno, std::generic_category());
    return false;
  }
  
*************** std::uintmax_t
*** 1253,1259 ****
  fs::remove_all(const path& p)
  {
    error_code ec;
!   bool result = remove_all(p, ec);
    if (ec.value())
      _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot remove all", p, ec));
    return result;
--- 1291,1297 ----
  fs::remove_all(const path& p)
  {
    error_code ec;
!   const auto result = remove_all(p, ec);
    if (ec.value())
      _GLIBCXX_THROW_OR_ABORT(filesystem_error("cannot remove all", p, ec));
    return result;
*************** fs::remove_all(const path& p)
*** 1262,1275 ****
  std::uintmax_t
  fs::remove_all(const path& p, error_code& ec) noexcept
  {
!   auto fs = symlink_status(p, ec);
!   uintmax_t count = 0;
!   if (ec.value() == 0 && fs.type() == file_type::directory)
!     for (directory_iterator d(p, ec), end; ec.value() == 0 && d != end; ++d)
!       count += fs::remove_all(d->path(), ec);
!   if (ec.value())
      return -1;
!   return fs::remove(p, ec) ? ++count : -1;  // fs:remove() calls ec.clear()
  }
  
  void
--- 1300,1327 ----
  std::uintmax_t
  fs::remove_all(const path& p, error_code& ec) noexcept
  {
!     const auto s = symlink_status(p, ec);
!   if (!status_known(s))
      return -1;
! 
!   ec.clear();
!   if (s.type() == file_type::not_found)
!     return 0;
! 
!   uintmax_t count = 0;
!   if (s.type() == file_type::directory)
!     {
!       for (directory_iterator d(p, ec), end; !ec && d != end; d.increment(ec))
! 	count += fs::remove_all(d->path(), ec);
!       if (ec.value() == ENOENT)
! 	ec.clear();
!       else if (ec)
! 	return -1;
!     }
! 
!   if (fs::remove(p, ec))
!     ++count;
!   return ec ? -1 : count;
  }
  
  void
*************** fs::space(const path& p, error_code& ec)
*** 1339,1348 ****
        ec.assign(errno, std::generic_category());
    else
      {
        info = space_info{
! 	f.f_blocks * f.f_frsize,
! 	f.f_bfree * f.f_frsize,
! 	f.f_bavail * f.f_frsize
        };
        ec.clear();
      }
--- 1391,1401 ----
        ec.assign(errno, std::generic_category());
    else
      {
+       uintmax_t fragment_size = f.f_frsize;
        info = space_info{
! 	f.f_blocks * fragment_size,
! 	f.f_bfree * fragment_size,
! 	f.f_bavail * fragment_size
        };
        ec.clear();
      }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/17_intro/names.cc gcc-6.5.0/libstdc++-v3/testsuite/17_intro/names.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/17_intro/names.cc	Tue Mar 14 20:48:31 2017
--- gcc-6.5.0/libstdc++-v3/testsuite/17_intro/names.cc	Sat Nov 11 16:11:50 2017
***************
*** 107,110 ****
--- 107,115 ----
  #undef y
  #endif
  
+ #ifdef __hpux__
+ #undef d
+ #undef r
+ #endif
+ 
  #include <bits/stdc++.h>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/19_diagnostics/error_category/generic_category.cc gcc-6.5.0/libstdc++-v3/testsuite/19_diagnostics/error_category/generic_category.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/19_diagnostics/error_category/generic_category.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/19_diagnostics/error_category/generic_category.cc	Wed Aug  8 15:40:26 2018
***************
*** 0 ****
--- 1,69 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <system_error>
+ #include <locale>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   const char* name = std::generic_category().name();
+   VERIFY( name == std::string("generic") );
+ }
+ 
+ void
+ test02()
+ {
+   const std::error_category& cat = std::generic_category();
+   std::error_condition cond;
+ 
+   cond = cat.default_error_condition(EBADF);
+   VERIFY( cond.value() == EBADF );
+   VERIFY( cond == std::errc::bad_file_descriptor );
+   VERIFY( cond.category() == std::generic_category() );
+   cond = cat.default_error_condition(EACCES);
+   VERIFY( cond.value() == EACCES );
+   VERIFY( cond == std::errc::permission_denied );
+   VERIFY( cond.category() == std::generic_category() );
+ 
+   // PR libstdc++/60555
+   VERIFY( std::error_code(EBADF, cat) == std::errc::bad_file_descriptor );
+   VERIFY( std::error_code(EACCES, cat) == std::errc::permission_denied );
+ }
+ 
+ void
+ test03()
+ {
+   // set "C" locale to get expected message
+   auto loc = std::locale::global(std::locale::classic());
+ 
+   std::string msg = std::generic_category().message(EBADF);
+   VERIFY( msg.find("file") != std::string::npos );
+ 
+   std::locale::global(loc);
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+   test03();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/19_diagnostics/error_category/system_category.cc gcc-6.5.0/libstdc++-v3/testsuite/19_diagnostics/error_category/system_category.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/19_diagnostics/error_category/system_category.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/19_diagnostics/error_category/system_category.cc	Wed Aug  8 15:40:26 2018
***************
*** 0 ****
--- 1,114 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <system_error>
+ #include <locale>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   const char* name = std::system_category().name();
+   VERIFY( name == std::string("system") );
+ }
+ 
+ void
+ test02()
+ {
+   const std::error_category& cat = std::system_category();
+   std::error_condition cond;
+ 
+   // As of 2011, ISO C only defines EDOM, EILSEQ and ERANGE:
+   cond = cat.default_error_condition(EDOM);
+   VERIFY( cond.value() == EDOM );
+   VERIFY( cond == std::errc::argument_out_of_domain );
+   VERIFY( cond.category() == std::generic_category() );
+   cond = cat.default_error_condition(EILSEQ);
+   VERIFY( cond.value() == EILSEQ );
+   VERIFY( cond == std::errc::illegal_byte_sequence );
+   VERIFY( cond.category() == std::generic_category() );
+   cond = cat.default_error_condition(ERANGE);
+   VERIFY( cond.value() == ERANGE );
+   VERIFY( cond == std::errc::result_out_of_range );
+   VERIFY( cond.category() == std::generic_category() );
+ 
+   // EBADF and EACCES are defined on all targets,
+   // according to config/os/*/error_constants.h
+   cond = cat.default_error_condition(EBADF);
+   VERIFY( cond.value() == EBADF );
+   VERIFY( cond == std::errc::bad_file_descriptor );
+   VERIFY( cond.category() == std::generic_category() );
+   cond = cat.default_error_condition(EACCES);
+   VERIFY( cond.value() == EACCES );
+   VERIFY( cond == std::errc::permission_denied );
+   VERIFY( cond.category() == std::generic_category() );
+ 
+   // All POSIX errno values are positive:
+   cond = cat.default_error_condition(-1);
+   VERIFY( cond.value() == -1 );
+   VERIFY( cond.category() == cat );
+   cond = cat.default_error_condition(-99);
+   VERIFY( cond.value() == -99 );
+   VERIFY( cond.category() == cat );
+ 
+   // PR libstdc++/60555
+   VERIFY( std::error_code(EDOM, cat) == std::errc::argument_out_of_domain );
+   VERIFY( std::error_code(EILSEQ, cat) == std::errc::illegal_byte_sequence );
+   VERIFY( std::error_code(ERANGE, cat) == std::errc::result_out_of_range );
+   VERIFY( std::error_code(EBADF, cat) == std::errc::bad_file_descriptor );
+   VERIFY( std::error_code(EACCES, cat) == std::errc::permission_denied );
+ 
+   // As shown at https://gcc.gnu.org/ml/libstdc++/2018-08/msg00018.html
+   // these two error codes might have the same value on AIX, but we still
+   // expect both to be matched by system_category and so use generic_category:
+ #ifdef EEXIST
+   cond = cat.default_error_condition(EEXIST);
+   VERIFY( cond.value() == EEXIST );
+   VERIFY( cond == std::errc::file_exists );
+   VERIFY( cond.category() == std::generic_category() );
+   VERIFY( std::error_code(EEXIST, cat) == std::errc::file_exists );
+ #endif
+ #ifdef ENOTEMPTY
+   cond = cat.default_error_condition(ENOTEMPTY);
+   VERIFY( cond.value() == ENOTEMPTY );
+   VERIFY( cond == std::errc::directory_not_empty );
+   VERIFY( cond.category() == std::generic_category() );
+   VERIFY( std::error_code(ENOTEMPTY, cat) == std::errc::directory_not_empty );
+ #endif
+ }
+ 
+ void
+ test03()
+ {
+   // set "C" locale to get expected message
+   auto loc = std::locale::global(std::locale::classic());
+ 
+   std::string msg = std::system_category().message(EBADF);
+   VERIFY( msg.find("file") != std::string::npos );
+ 
+   std::locale::global(loc);
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+   test03();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/cons/dr1177.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/cons/dr1177.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/cons/dr1177.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/cons/dr1177.cc	Wed Sep 13 15:20:34 2017
***************
*** 0 ****
--- 1,41 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++11 } }
+ 
+ #include <chrono>
+ #include <type_traits>
+ 
+ using namespace std;
+ using namespace std::chrono;
+ 
+ // DR 1177
+ static_assert(is_constructible<duration<float>, duration<double>>{},
+     "can convert duration with one floating point rep to another");
+ static_assert(is_constructible<duration<float>, duration<int>>{},
+     "can convert duration with integral rep to one with floating point rep");
+ static_assert(!is_constructible<duration<int>, duration<float>>{},
+     "cannot convert duration with floating point rep to one with integral rep");
+ static_assert(is_constructible<duration<int>, duration<long>>{},
+     "can convert duration with one integral rep to another");
+ 
+ static_assert(!is_constructible<duration<int>, duration<int, ratio<2,3>>>{},
+     "cannot convert duration to one with different period");
+ static_assert(is_constructible<duration<float>, duration<int, ratio<2,3>>>{},
+     "unless it has a floating-point representation");
+ static_assert(is_constructible<duration<float>, duration<int, ratio<1,3>>>{},
+     "or a period that is an integral multiple of the original");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/cons/dr3050.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/cons/dr3050.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/cons/dr3050.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/cons/dr3050.cc	Wed Aug  8 15:40:57 2018
***************
*** 0 ****
--- 1,24 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++11 } }
+ 
+ #include <chrono>
+ 
+ struct X { operator int64_t() /* not const */; };
+ static_assert(!std::is_constructible<std::chrono::seconds, X>::value,
+ 	      "LWG 3050");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/literals/84671.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/literals/84671.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/literals/84671.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/literals/84671.cc	Fri Mar  2 23:52:06 2018
***************
*** 0 ****
--- 1,26 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <chrono>
+ 
+ // PR libstdc++/84671
+ using namespace std::literals::chrono_literals;
+ constexpr auto ns_ok = 12113ns;
+ constexpr auto ns_fail = 12'11'3ns;
+ static_assert(ns_ok == ns_fail, "digit separators work in duration literals");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/literals/range.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/literals/range.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/literals/range.cc	Mon Oct  3 14:35:59 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/literals/range.cc	Thu Jan  1 00:00:00 1970
***************
*** 1,31 ****
- // { dg-do compile }
- // { dg-options "-std=gnu++14" }
- 
- // Copyright (C) 2014-2016 Free Software Foundation, Inc.
- //
- // This file is part of the GNU ISO C++ Library.  This library is free
- // software; you can redistribute it and/or modify it under the
- // terms of the GNU General Public License as published by the
- // Free Software Foundation; either version 3, or (at your option)
- // any later version.
- 
- // This library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- // GNU General Public License for more details.
- 
- // You should have received a copy of the GNU General Public License along
- // with this library; see the file COPYING3.  If not see
- // <http://www.gnu.org/licenses/>.
- 
- #include <chrono>
- 
- void
- test01()
- {
-   using namespace std::literals::chrono_literals;
- 
-   // std::numeric_limits<int64_t>::max() == 9223372036854775807;
-   auto h = 9223372036854775808h;
-   // { dg-error "cannot be represented" "" { target *-*-* } 797 }
- }
--- 0 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/literals/range_neg.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/literals/range_neg.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/duration/literals/range_neg.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/duration/literals/range_neg.cc	Wed Aug  8 15:40:57 2018
***************
*** 0 ****
--- 1,31 ----
+ // { dg-do compile }
+ // { dg-options "-std=gnu++14" }
+ 
+ // Copyright (C) 2014-2016 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include <chrono>
+ 
+ void
+ test01()
+ {
+   using namespace std::literals::chrono_literals;
+ 
+   // std::numeric_limits<int64_t>::max() == 9223372036854775807;
+   auto h = 9223372036854775808h;
+   // { dg-error "cannot be represented" "" { target *-*-* } 804 }
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/function/assign/move.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/function/assign/move.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/function/assign/move.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/function/assign/move.cc	Mon Sep  4 16:52:20 2017
*************** void test01()
*** 40,50 ****
    fo2 = (std::move(fo));
    VERIFY( static_cast<bool>(fo2) );
    VERIFY( fo2() == 2 );
  }
  
  int main()
  {
    test01();
- 
-   return 0;
  }
--- 40,51 ----
    fo2 = (std::move(fo));
    VERIFY( static_cast<bool>(fo2) );
    VERIFY( fo2() == 2 );
+ 
+   static_assert(std::is_nothrow_move_assignable<function>::value,
+ 		"PR libstdc++/81017");
  }
  
  int main()
  {
    test01();
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/function/cons/move.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/function/cons/move.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/function/cons/move.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/function/cons/move.cc	Mon Sep  4 16:52:20 2017
*************** void test01()
*** 38,48 ****
    function fo2(std::move(fo));
    VERIFY( static_cast<bool>(fo2) );
    VERIFY( fo2() == 2 );
  }
  
  int main()
  {
    test01();
- 
-   return 0;
  }
--- 38,49 ----
    function fo2(std::move(fo));
    VERIFY( static_cast<bool>(fo2) );
    VERIFY( fo2() == 2 );
+ 
+   static_assert(std::is_nothrow_move_constructible<function>::value,
+ 		"PR libstdc++/81017");
  }
  
  int main()
  {
    test01();
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/owner_less/noexcept.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/owner_less/noexcept.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/owner_less/noexcept.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/owner_less/noexcept.cc	Tue Sep  5 10:30:54 2017
***************
*** 0 ****
--- 1,31 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++11 } }
+ 
+ #include <memory>
+ 
+ const std::shared_ptr<int> si;
+ const std::weak_ptr<int> wi;
+ const std::owner_less<std::shared_ptr<int>> osi;
+ static_assert( noexcept(osi(si, si)), "" );
+ static_assert( noexcept(osi(si, wi)), "" );
+ static_assert( noexcept(osi(wi, si)), "" );
+ const std::owner_less<std::weak_ptr<int>> owi;
+ static_assert( noexcept(owi(wi, wi)), "" );
+ static_assert( noexcept(owi(si, wi)), "" );
+ static_assert( noexcept(owi(wi, si)), "" );
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/pair/86751.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/pair/86751.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/pair/86751.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/pair/86751.cc	Mon Oct 15 11:52:48 2018
***************
*** 0 ****
--- 1,33 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++11 } }
+ 
+ #include <utility>
+ 
+ struct X {
+   template<typename T> operator T() const;
+ };
+ 
+ 
+ void
+ test01()
+ {
+   std::pair<int, int> p;
+   X x;
+   p = x;  // PR libstdc++/86751
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/pair/ref_assign.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/pair/ref_assign.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/pair/ref_assign.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/pair/ref_assign.cc	Mon Oct 15 11:52:48 2018
***************
*** 0 ****
--- 1,74 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <utility>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   typedef std::pair<int&, int> pair_type;
+   int i = 1;
+   int j = 2;
+   pair_type p(i, 3);
+   const pair_type q(j, 4);
+   p = q;
+   VERIFY( p.first == q.first );
+   VERIFY( p.second == q.second );
+   VERIFY( i == j );
+ }
+ 
+ void
+ test02()
+ {
+   typedef std::pair<int, int&> pair_type;
+   int i = 1;
+   int j = 2;
+   pair_type p(3, i);
+   const pair_type q(4, j);
+   p = q;
+   VERIFY( p.first == q.first );
+   VERIFY( p.second == q.second );
+   VERIFY( i == j );
+ }
+ 
+ void
+ test03()
+ {
+   typedef std::pair<int&, int&> pair_type;
+   int i = 1;
+   int j = 2;
+   int k = 3;
+   int l = 4;
+   pair_type p(i, j);
+   const pair_type q(k, l);
+   p = q;
+   VERIFY( p.first == q.first );
+   VERIFY( p.second == q.second );
+   VERIFY( i == k );
+   VERIFY( j == l );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+   test03();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/shared_ptr/observers/owner_before.cc	Mon Sep  4 16:52:15 2017
*************** test02()
*** 71,76 ****
--- 71,82 ----
    VERIFY( !a1.owner_before(w1) && !w1.owner_before(a1) );
    std::weak_ptr<A> w2(a2);
    VERIFY( !b1.owner_before(w2) && !w2.owner_before(b1) );
+ 
+   static_assert( noexcept(a1.owner_before(a0)), "" );
+   static_assert( noexcept(a1.owner_before(b1)), "" );
+   static_assert( noexcept(b1.owner_before(a1)), "" );
+   static_assert( noexcept(a1.owner_before(w1)), "" );
+   static_assert( noexcept(b1.owner_before(w1)), "" );
  }
  
  // Aliasing
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/time_point/cons/81468.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/time_point/cons/81468.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/time_point/cons/81468.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/time_point/cons/81468.cc	Wed Sep 13 15:20:34 2017
***************
*** 0 ****
--- 1,34 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++11 } }
+ 
+ #include <chrono>
+ #include <type_traits>
+ 
+ using namespace std;
+ using namespace std::chrono;
+ 
+ template <class Duration>
+     using sys_time = time_point<system_clock, Duration>;
+ 
+ static_assert(is_constructible<sys_time<milliseconds>, sys_time<seconds>>{},
+     "Can construct time_point from one with lower precision duration");
+ 
+ // PR libstdc++/81468 - DR 1177
+ static_assert(!is_constructible<sys_time<seconds>, sys_time<milliseconds>>{},
+     "Cannot construct time_point from one with higher precision duration");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc	Wed Oct 19 10:15:27 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635_neg.cc	Thu Oct 25 16:41:54 2018
*************** void f()
*** 43,52 ****
    std::unique_ptr<int, D&> ud(nullptr, d);
    ub = std::move(ud); // { dg-error "no match" }
    ub2 = ud; // { dg-error "no match" }
! // { dg-error "no type" "" { target *-*-* } 272 }
  
    std::unique_ptr<int[], B&> uba(nullptr, b);
    std::unique_ptr<int[], D&> uda(nullptr, d);
    uba = std::move(uda); // { dg-error "no match" }
! // { dg-error "no type" "" { target *-*-* } 540 }
  }
--- 43,52 ----
    std::unique_ptr<int, D&> ud(nullptr, d);
    ub = std::move(ud); // { dg-error "no match" }
    ub2 = ud; // { dg-error "no match" }
! // { dg-error "no type" "" { target *-*-* } 274 }
  
    std::unique_ptr<int[], B&> uba(nullptr, b);
    std::unique_ptr<int[], D&> uda(nullptr, d);
    uba = std::move(uda); // { dg-error "no match" }
! // { dg-error "no type" "" { target *-*-* } 544 }
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc	Wed Oct 19 10:20:20 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc	Thu Oct 25 16:41:54 2018
*************** test07()
*** 40,46 ****
    std::unique_ptr<const A[]> cA3(p); // { dg-error "no matching function" }
    std::unique_ptr<volatile A[]> vA3(p); // { dg-error "no matching function" }
    std::unique_ptr<const volatile A[]> cvA3(p); // { dg-error "no matching function" }
!   // { dg-error "no type" "" { target *-*-* } 448 }
  }
  
  template<typename T>
--- 40,46 ----
    std::unique_ptr<const A[]> cA3(p); // { dg-error "no matching function" }
    std::unique_ptr<volatile A[]> vA3(p); // { dg-error "no matching function" }
    std::unique_ptr<const volatile A[]> cvA3(p); // { dg-error "no matching function" }
!   // { dg-error "no type" "" { target *-*-* } 450 }
  }
  
  template<typename T>
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/unique_ptr/cons/incomplete.cc	Thu Oct 25 16:41:54 2018
***************
*** 0 ****
--- 1,32 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++11 } }
+ 
+ #include <memory>
+ 
+ struct Incomplete;
+ 
+ void f(void** p)
+ {
+   ::new (p[0]) std::unique_ptr<Incomplete>();
+   ::new (p[1]) std::unique_ptr<Incomplete[]>();
+ 
+   // PR libstdc++/87704
+   ::new (p[2]) std::unique_ptr<Incomplete>(nullptr);
+   ::new (p[3]) std::unique_ptr<Incomplete[]>(nullptr);
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc gcc-6.5.0/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/20_util/weak_ptr/observers/owner_before.cc	Mon Sep  4 16:52:15 2017
*************** struct B { };
*** 27,33 ****
  
  // 20.6.6.3.5 weak_ptr observers [util.smartptr.weak.obs]
  
! int
  test01()
  {
    bool test __attribute__((unused)) = true;
--- 27,33 ----
  
  // 20.6.6.3.5 weak_ptr observers [util.smartptr.weak.obs]
  
! void
  test01()
  {
    bool test __attribute__((unused)) = true;
*************** test01()
*** 40,50 ****
    std::shared_ptr<B> p3;
    VERIFY( !p1.owner_before(p3) && !p3.owner_before(p1) );
  
!   return 0;
  }
  
  
! int
  test02()
  {
    bool test __attribute__((unused)) = true;
--- 40,53 ----
    std::shared_ptr<B> p3;
    VERIFY( !p1.owner_before(p3) && !p3.owner_before(p1) );
  
!   static_assert( noexcept(p1.owner_before(p1)), "" );
!   static_assert( noexcept(p1.owner_before(p2)), "" );
!   static_assert( noexcept(p1.owner_before(p3)), "" );
!   static_assert( noexcept(p2.owner_before(p1)), "" );
  }
  
  
! void
  test02()
  {
    bool test __attribute__((unused)) = true;
*************** test02()
*** 64,71 ****
  
    std::shared_ptr<B> b1(new B);
    VERIFY( w1.owner_before(b1) || b1.owner_before(w1) );
- 
-   return 0;
  }
  
  int 
--- 67,72 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc	Thu Oct 25 16:42:01 2018
***************
*** 0 ****
--- 1,78 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ // PR libstdc++/87749
+ 
+ #include <string>
+ #include <testsuite_hooks.h>
+ 
+ bool oom = false;
+ 
+ template<typename T>
+ struct alloc
+ {
+   using value_type = T;
+ 
+ #if !_GLIBCXX_USE_CXX11_ABI
+   using size_type = unsigned long;
+   using difference_type = long;
+   using reference = T&;
+   using const_reference = T&;
+   using pointer = T*;
+   using const_pointer = const T*;
+   template<typename U>
+     struct rebind { using other = alloc<U>; };
+ #endif
+ 
+   int not_empty = 0; // this makes is_always_equal false
+ 
+   alloc() = default;
+   template<typename U>
+     alloc(const alloc<U>&) { }
+ 
+   T* allocate(unsigned long n)
+   {
+     if (oom)
+       throw std::bad_alloc();
+     return std::allocator<T>().allocate(n);
+   }
+ 
+   void deallocate(T* p, unsigned long n)
+   {
+     std::allocator<T>().deallocate(p, n);
+   }
+ };
+ 
+ template<typename T, typename U>
+ bool operator==(const alloc<T>&, const alloc<U>&) { return true; }
+ 
+ template<typename T, typename U>
+ bool operator!=(const alloc<T>&, const alloc<U>&) { return false; }
+ 
+ int main()
+ {
+   using string = std::basic_string<char, std::char_traits<char>, alloc<char>>;
+ 
+   string s = "PR libstdc++/87749 a string that is longer than a short string";
+   const auto ptr = s.c_str();
+   oom = true;
+   string ss;
+   ss = std::move(s); // allocators are equal, should not allocate new storage
+   VERIFY( ss.c_str() == ptr );
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/move_assign_optim.cc	Thu Oct 25 16:42:01 2018
***************
*** 0 ****
--- 1,35 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-options "-O1" }
+ // { dg-do compile { target c++11 } }
+ // { dg-final { scan-assembler-not "__throw_length_error" } }
+ // { dg-final { scan-assembler-not "__throw_bad_alloc" } }
+ 
+ #include <bits/c++config.h>
+ #undef _GLIBCXX_EXTERN_TEMPLATE
+ #include <string>
+ 
+ void
+ test01(std::string& target, std::string&& source)
+ {
+   // The move assignment operator should be simple enough that the compiler
+   // can see that it never results in a length_error or bad_alloc exception
+   // (which would be turned into std::terminate by the noexcept on the
+   // assignment operator).
+   target = std::move(source);
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc	Thu Oct 25 16:42:01 2018
***************
*** 0 ****
--- 1,79 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ // PR libstdc++/87749
+ 
+ #include <string>
+ #include <testsuite_hooks.h>
+ 
+ bool oom = false;
+ 
+ template<typename T>
+ struct alloc
+ {
+   using value_type = T;
+ 
+ #if !_GLIBCXX_USE_CXX11_ABI
+   using size_type = unsigned long;
+   using difference_type = long;
+   using reference = T&;
+   using const_reference = T&;
+   using pointer = T*;
+   using const_pointer = const T*;
+   template<typename U>
+     struct rebind { using other = alloc<U>; };
+ #endif
+ 
+   int not_empty = 0; // this makes is_always_equal false
+ 
+   alloc() = default;
+   template<typename U>
+     alloc(const alloc<U>&) { }
+ 
+   T* allocate(unsigned long n)
+   {
+     if (oom)
+       throw std::bad_alloc();
+     return std::allocator<T>().allocate(n);
+   }
+ 
+   void deallocate(T* p, unsigned long n)
+   {
+     std::allocator<T>().deallocate(p, n);
+   }
+ };
+ 
+ template<typename T, typename U>
+ bool operator==(const alloc<T>&, const alloc<U>&) { return true; }
+ 
+ template<typename T, typename U>
+ bool operator!=(const alloc<T>&, const alloc<U>&) { return false; }
+ 
+ int main()
+ {
+   using string
+     = std::basic_string<wchar_t, std::char_traits<wchar_t>, alloc<wchar_t>>;
+ 
+   string s = L"PR libstdc++/87749 a string that is longer than a short string";
+   const auto ptr = s.c_str();
+   oom = true;
+   string ss;
+   ss = std::move(s); // allocators are equal, should not allocate new storage
+   VERIFY( ss.c_str() == ptr );
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/wchar_t/move_assign_optim.cc	Thu Oct 25 16:42:01 2018
***************
*** 0 ****
--- 1,35 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-options "-O1" }
+ // { dg-do compile { target c++11 } }
+ // { dg-final { scan-assembler-not "__throw_length_error" } }
+ // { dg-final { scan-assembler-not "__throw_bad_alloc" } }
+ 
+ #include <bits/c++config.h>
+ #undef _GLIBCXX_EXTERN_TEMPLATE
+ #include <string>
+ 
+ void
+ test01(std::wstring& target, std::wstring&& source)
+ {
+   // The move assignment operator should be simple enough that the compiler
+   // can see that it never results in a length_error or bad_alloc exception
+   // (which would be turned into std::terminate by the noexcept on the
+   // assignment operator).
+   target = std::move(source);
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/69703.cc gcc-6.5.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/69703.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/69703.cc	Wed May 25 16:33:03 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/69703.cc	Wed Aug  8 15:40:17 2018
*************** test03()
*** 74,80 ****
    VERIFY( in[2] == U'c' );
  }
  
- 
  void
  test04()
  {
--- 74,79 ----
*************** main()
*** 98,103 ****
  {
    test01();
    test02();
!   test01();
!   test02();
  }
--- 97,102 ----
  {
    test01();
    test02();
!   test03();
!   test04();
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc gcc-6.5.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc	Wed Aug  8 15:40:17 2018
***************
*** 0 ****
--- 1,52 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <string>
+ #include <codecvt>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   const char out[] = u8"\u00A33.50";
+   wchar_t in[8] = {};
+   std::codecvt_utf8<wchar_t> cvt;
+   std::mbstate_t st;
+   const char* no;
+   wchar_t* ni;
+   auto res = cvt.in(st, out, out+6, no, in, in+8, ni);
+   VERIFY( res == std::codecvt_base::ok );
+   VERIFY( in[1] == L'3' );
+   VERIFY( in[2] == L'.' );
+   VERIFY( in[3] == L'5' );
+   VERIFY( in[4] == L'0' );
+ 
+   char out2[8] = {};
+   char* no2;
+   const wchar_t* ni2;
+   res = cvt.out(st, in, ni, ni2, out2, out2+8, no2);
+   VERIFY( res == std::codecvt_base::ok );
+   VERIFY( out2 == std::string(out) );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/22_locale/conversions/buffer/3.cc gcc-6.5.0/libstdc++-v3/testsuite/22_locale/conversions/buffer/3.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/22_locale/conversions/buffer/3.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/22_locale/conversions/buffer/3.cc	Fri Jan  5 22:48:45 2018
***************
*** 0 ****
--- 1,58 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <locale>
+ #include <streambuf>
+ #include <testsuite_hooks.h>
+ 
+ struct streambuf : std::streambuf
+ {
+   int_type underflow() override
+   {
+     if (c != '\0')
+     {
+       this->setg(&c, &c, &c + 1);
+       return *this->gptr();
+     }
+     c = '\0';
+     return traits_type::eof();
+   }
+ 
+ private:
+   char c = 'a';
+ };
+ 
+ struct codecvt : std::codecvt<wchar_t, char, std::mbstate_t> { };
+ 
+ void
+ test01()
+ {
+   // https://gcc.gnu.org/ml/libstdc++/2017-11/msg00022.html
+   streambuf sb;
+   std::wbuffer_convert<codecvt> conv(&sb);
+   VERIFY( sb.in_avail() == 0 );
+   wchar_t c = conv.sgetc();
+   VERIFY( c == L'a' );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/22_locale/numpunct/members/char/3.cc gcc-6.5.0/libstdc++-v3/testsuite/22_locale/numpunct/members/char/3.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/22_locale/numpunct/members/char/3.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/22_locale/numpunct/members/char/3.cc	Mon Oct 15 14:03:53 2018
***************
*** 1,4 ****
! // { dg-require-namedlocale "it_IT.ISO8859-15" }
  
  // 2001-01-24 Benjamin Kosnik  <bkoz@redhat.com>
  
--- 1,4 ----
! // { dg-require-namedlocale "nl_NL.ISO8859-15" }
  
  // 2001-01-24 Benjamin Kosnik  <bkoz@redhat.com>
  
*************** void test02()
*** 30,41 ****
    
    bool test __attribute__((unused)) = true;
  
!   locale loc_it = locale(ISO_8859(15,it_IT));
  
    const numpunct<char>& nump_it = use_facet<numpunct<char> >(loc_it); 
  
    string g = nump_it.grouping();
  
    VERIFY( g == "" );
  }
  
--- 30,43 ----
    
    bool test __attribute__((unused)) = true;
  
!   // nl_NL chosen because it has no thousands separator (at this time).
!   locale loc_it = locale(ISO_8859(15,nl_NL));
  
    const numpunct<char>& nump_it = use_facet<numpunct<char> >(loc_it); 
  
    string g = nump_it.grouping();
  
+   // Ensure that grouping is empty for locales with empty thousands separator.
    VERIFY( g == "" );
  }
  
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc gcc-6.5.0/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/23_containers/unordered_map/cons/81891.cc	Mon Sep  4 16:17:07 2017
***************
*** 0 ****
--- 1,68 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <unordered_map>
+ #include <testsuite_hooks.h>
+ #include <testsuite_allocator.h>
+ 
+ struct fails_on_copy {
+   fails_on_copy() = default;
+   fails_on_copy(const fails_on_copy&) { throw 0; };
+ };
+ 
+ using value_type = std::pair<int, fails_on_copy>;
+ 
+ void
+ test01()
+ {
+   value_type p;
+   try
+   {
+     std::unordered_map<int, fails_on_copy> umap(&p, &p + 1);
+   }
+   catch(...)
+   { }
+ }
+ 
+ void
+ test02()
+ {
+   using Alloc = __gnu_test::tracker_allocator<value_type>;
+   using std::hash;
+   using std::equal_to;
+ 
+   value_type p;
+   try
+   {
+     std::unordered_map<int, fails_on_copy, hash<int>, equal_to<int>, Alloc>
+ 	umap(&p, &p + 1);
+   }
+   catch(...)
+   { }
+ 
+   using counter = __gnu_test::tracker_allocator_counter;
+   VERIFY(counter::get_allocation_count() == counter::get_deallocation_count());
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/23_containers/vector/bool/80893.cc gcc-6.5.0/libstdc++-v3/testsuite/23_containers/vector/bool/80893.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/23_containers/vector/bool/80893.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/23_containers/vector/bool/80893.cc	Wed Aug  8 15:40:47 2018
***************
*** 0 ****
--- 1,76 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ // libstdc++/80893
+ 
+ #include <vector>
+ #include <testsuite_allocator.h>
+ 
+ struct DereferencedInvalidPointer { };
+ 
+ // User-defined pointer type that throws if a null pointer is dereferenced.
+ template<typename T>
+ struct Pointer : __gnu_test::PointerBase<Pointer<T>, T>
+ {
+   using __gnu_test::PointerBase<Pointer<T>, T>::PointerBase;
+ 
+   T& operator*() const
+   {
+     if (!this->value)
+       throw DereferencedInvalidPointer();
+     return *this->value;
+   }
+ };
+ 
+ // Minimal allocator using Pointer<T>
+ template<typename T>
+ struct Alloc
+ {
+   typedef T value_type;
+   typedef Pointer<T> pointer;
+ 
+   Alloc() = default;
+   template<typename U>
+     Alloc(const Alloc<U>&) { }
+ 
+   pointer allocate(std::size_t n)
+   {
+     if (n)
+       return pointer(std::allocator<T>().allocate(n));
+     return nullptr;
+   }
+ 
+   void deallocate(pointer p, std::size_t n)
+   {
+     if (n)
+       std::allocator<T>().deallocate(p.value, n);
+   }
+ };
+ 
+ template<typename T>
+ bool operator==(Alloc<T>, Alloc<T>) { return true; }
+ 
+ template<typename T>
+ bool operator!=(Alloc<T>, Alloc<T>) { return false; }
+ 
+ int main()
+ {
+   std::vector<bool, Alloc<bool>> v(0);
+   std::vector<bool, Alloc<bool>> w(v);
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc gcc-6.5.0/libstdc++-v3/testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc	Wed Aug  8 16:31:55 2018
***************
*** 0 ****
--- 1,60 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include <vector>
+ #include <testsuite_hooks.h>
+ 
+ struct X
+ {
+   X() : data(1)
+   {
+     if (fail)
+       throw 1;
+   }
+ 
+   static bool fail;
+ 
+   std::vector<int> data;
+ };
+ 
+ bool X::fail = false;
+ 
+ void
+ test01()
+ {
+   std::vector<X> v(2);
+   X* const addr = &v[0];
+   bool caught = false;
+   try {
+     X::fail = true;
+     v.resize(v.capacity() + 1); // force reallocation
+   } catch (int) {
+     caught = true;
+   }
+   VERIFY( caught );
+   VERIFY( v.size() == 2 );
+   VERIFY( &v[0] == addr );
+   // PR libstdc++/83982
+   VERIFY( ! v[0].data.empty() );
+   VERIFY( ! v[1].data.empty() );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/23_containers/vector/cons/86292.cc gcc-6.5.0/libstdc++-v3/testsuite/23_containers/vector/cons/86292.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/23_containers/vector/cons/86292.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/23_containers/vector/cons/86292.cc	Wed Aug  8 15:40:37 2018
***************
*** 0 ****
--- 1,64 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run }
+ 
+ #include <vector>
+ #include <testsuite_hooks.h>
+ #include <testsuite_iterators.h>
+ 
+ struct X
+ {
+   X() { ++count; }
+   X(const X&) { if (++copies >= max_copies) throw 1; ++count; }
+   ~X() { --count; }
+ 
+   static int count;
+   static int copies;
+   static int max_copies;
+ };
+ 
+ int X::count = 0;
+ int X::copies = 0;
+ int X::max_copies = 0;
+ 
+ void
+ test01()
+ {
+   X x[3];
+   const int count = X::count;
+   X::max_copies = 2;
+   __gnu_test::test_container<const X, __gnu_test::input_iterator_wrapper>
+     x_input(x, x+3);
+   bool caught = false;
+   try
+   {
+     std::vector<X> v(x_input.begin(), x_input.end());
+   }
+   catch(int)
+   {
+     caught = true;
+   }
+   VERIFY( caught );
+   VERIFY( X::count == count );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/24_iterators/reverse_iterator/dr2188.cc gcc-6.5.0/libstdc++-v3/testsuite/24_iterators/reverse_iterator/dr2188.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/24_iterators/reverse_iterator/dr2188.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/24_iterators/reverse_iterator/dr2188.cc	Wed Aug  8 15:40:21 2018
***************
*** 0 ****
--- 1,47 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ // PR libstdc++/86734
+ 
+ #include <iterator>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   // LWG DR 2188
+   // Reverse iterator does not fully support targets that overload operator&
+   struct X {
+     int val;
+     int* operator&() { return &val; }
+     const int* operator&() const { return &val; }
+   };
+ 
+   X x[2] = { {1}, {2} };
+   std::reverse_iterator<X*> rev(x+2);
+   VERIFY( rev->val == 2 );
+   ++rev;
+   VERIFY( rev->val == 1 );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/char/59568.cc gcc-6.5.0/libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/char/59568.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/char/59568.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/26_numerics/complex/inserters_extractors/char/59568.cc	Thu Dec 14 12:01:40 2017
***************
*** 0 ****
--- 1,191 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include <complex>
+ #include <sstream>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   std::istringstream in(" 1 (2) ( 2.0 , 0.5 ) ");
+   std::complex<double> c1, c2, c3;
+   in >> c1 >> c2 >> c3;
+   VERIFY( in.good() );
+   VERIFY( c1.real() == 1 && c1.imag() == 0 );
+   VERIFY( c2.real() == 2 && c2.imag() == 0 );
+   VERIFY( c3.real() == 2 && c3.imag() == 0.5 );
+ }
+ 
+ void
+ test02()
+ {
+   std::istringstream in;
+   std::complex<double> c(-1, -1);
+   const std::complex<double> c0 = c;
+ 
+   in.str("a");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == 'a' );
+   VERIFY( c == c0 );
+ 
+   in.str(" ( ) ");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == ')' );
+   VERIFY( c == c0 );
+ 
+   in.str("(,");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == ',' );
+   VERIFY( c == c0 );
+ 
+   in.str("(b)");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == 'b' );
+   VERIFY( c == c0 );
+ 
+   in.str("( c)");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == 'c' );
+   VERIFY( c == c0 );
+ 
+   in.str("(99d");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   // VERIFY( in.get() == 'd' );
+   VERIFY( c == c0 );
+ 
+   in.str("(99 e");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   // VERIFY( in.get() == 'e' );
+   VERIFY( c == c0 );
+ 
+   in.str("(99, f");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == 'f' );
+   VERIFY( c == c0 );
+ 
+   in.str("(99, 88g");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   // VERIFY( in.get() == 'g' );
+   VERIFY( c == c0 );
+ 
+   in.str("(99, 88 h");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   // VERIFY( in.get() == 'h' );
+   VERIFY( c == c0 );
+ 
+   in.str("(99, )");
+   in >> c;
+   VERIFY( in.fail() );
+   in.clear();
+   VERIFY( in.get() == ')' );
+   VERIFY( c == c0 );
+ }
+ 
+ void
+ test03()
+ {
+   // PR libstdc++/59568
+   std::istringstream in;
+   std::complex<double> c;
+ 
+   in.str("");
+   in >> c;
+   VERIFY( in.fail() );
+   VERIFY( in.eof() );
+   in.clear();
+ 
+   in.str(" ");
+   in >> c;
+   VERIFY( in.fail() );
+   VERIFY( in.eof() );
+   in.clear();
+ 
+   in.str("(99");
+   in >> c;
+   VERIFY( in.fail() );
+   VERIFY( in.eof() );
+   in.clear();
+ 
+   in.str("(99,");
+   in >> c;
+   VERIFY( in.fail() );
+   VERIFY( in.eof() );
+   in.clear();
+ 
+   in.str("(99,99");
+   in >> c;
+   VERIFY( in.fail() );
+   VERIFY( in.eof() );
+   in.clear();
+ }
+ 
+ void
+ test04()
+ {
+   // Test noskipws handling
+   std::istringstream in;
+   const char* bad_inputs[] = {
+     " 1", " (2)", "( 2)", "(2 )", "(2 ,3)", "(2,3 )", 0
+   };
+   const std::complex<double> c0(-1, -1);
+   std::complex<double> c;
+   for (int i = 0; bad_inputs[i]; ++i)
+   {
+     c = c0;
+     in.clear();
+     in.str(bad_inputs[i]);
+     in >> std::noskipws >> c;
+     VERIFY( in.fail() );
+     VERIFY( c == c0 );
+ 
+     in.clear();
+     in.str(bad_inputs[i]);
+     in >> std::skipws >> c;
+     VERIFY( !in.fail() );
+     VERIFY( c != c0 );
+   }
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+   test03();
+   test04();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/83833.cc gcc-6.5.0/libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/83833.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/83833.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/26_numerics/random/chi_squared_distribution/83833.cc	Mon Jan 29 14:44:48 2018
***************
*** 0 ****
--- 1,40 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ // { dg-additional-options "-ffloat-store" { target { m68*-*-* || ia32 } } }
+ 
+ #include <random>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   std::default_random_engine r1, r2;
+   using chi = std::chi_squared_distribution<double>;
+   chi::param_type p(5);
+   chi d1(p);
+   chi d2;
+   d2.param(p);
+   VERIFY( d1(r1) == d2(r2) ); // PR libstdc++/83833
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/26_numerics/valarray/87641.cc gcc-6.5.0/libstdc++-v3/testsuite/26_numerics/valarray/87641.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/26_numerics/valarray/87641.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/26_numerics/valarray/87641.cc	Thu Oct 18 21:41:01 2018
***************
*** 0 ****
--- 1,75 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include <valarray>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   // PR libstdc++/87641
+   std::valarray<int> v1(3);
+   v1[0] = 1;
+   v1[1] = 2;
+   v1[2] = 3;
+   std::valarray< std::valarray<int> > v2(v1, 3);
+   std::valarray<int> v3 = v2.sum();
+   VERIFY( v3.size() == v1.size() );
+   VERIFY( v3[0] == 3 );
+   VERIFY( v3[1] == 6 );
+   VERIFY( v3[2] == 9 );
+ }
+ 
+ struct X
+ {
+   X() : val(1) { }
+ 
+   X& operator+=(const X& x) { val += x.val; return *this; }
+   bool operator==(const X& x) { return val == x.val; }
+ 
+   int val;
+ };
+ 
+ void
+ test02()
+ {
+   std::valarray<X> v1(1);
+   VERIFY( v1.sum() == v1[0] );
+ 
+   std::valarray<X> v2(2);
+   VERIFY( v2.sum().val == 2 );
+ }
+ 
+ struct Y
+ {
+   X& operator+=(const Y&) { throw 1; }
+ };
+ 
+ void
+ test03()
+ {
+   std::valarray<Y> v1(1);
+   (void) v1.sum(); // no addition performed for a single element
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+   test03();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/81395.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/81395.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/81395.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/81395.cc	Mon Oct 23 17:47:10 2017
***************
*** 0 ****
--- 1,46 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-require-fileio "" }
+ 
+ // PR libstdc++/81395
+ 
+ #include <fstream>
+ #include <cstring>	// for std::memset
+ #include <cstdio>	// For BUFSIZ
+ 
+ using std::memset;
+ 
+ int main()
+ {
+   {
+     std::filebuf fb;
+     fb.open("test.txt", std::ios::out);
+     char data[BUFSIZ];
+     memset(data, 'A', sizeof(data));
+     fb.sputn(data, sizeof(data));
+   }
+ 
+   std::filebuf fb;
+   fb.open("test.txt", std::ios::in|std::ios::out);
+   char buf[BUFSIZ];
+   memset(buf, 0, sizeof(buf));
+   fb.sgetn(buf, sizeof(buf));
+   // Switch from reading to writing without seeking first:
+   fb.sputn("B", 1);
+   fb.pubsync();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_fstream/53984.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_fstream/53984.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_fstream/53984.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_fstream/53984.cc	Mon Sep  4 16:52:25 2017
***************
*** 0 ****
--- 1,64 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-require-fileio "" }
+ 
+ // PR libstdc++/53984
+ 
+ #include <fstream>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   std::ifstream in(".");
+   if (in)
+   {
+     char c;
+     if (in.get(c))
+     {
+       // Reading a directory doesn't produce an error on this target
+       // so the formatted input functions below wouldn't fail anyway
+       // (see PR libstdc++/81808).
+       return;
+     }
+     int x;
+     in.clear();
+     // Formatted input function should set badbit, but not throw:
+     in >> x;
+     VERIFY( in.bad() );
+ 
+     in.clear();
+     in.exceptions(std::ios::badbit);
+     try
+     {
+       // Formatted input function should set badbit, and throw:
+       in >> x;
+       VERIFY( false );
+     }
+     catch (const std::exception&)
+     {
+       VERIFY( in.bad() );
+     }
+   }
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/1.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/1.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/1.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ios/copyfmt/char/1.cc	Wed Aug  8 15:40:11 2018
***************
*** 17,25 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  // 27.4.4.2 basic_ios member functions
  
  // NB: Don't include any other headers in this file.
--- 17,22 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/1.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/1.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/1.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ios/exceptions/char/1.cc	Wed Aug  8 15:40:11 2018
***************
*** 17,25 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  // 27.4.4.2 basic_ios member functions
  
  // NB: Don't include any other headers in this file.
--- 17,22 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/char/exceptions_failbit.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <sstream>
  #include <testsuite_hooks.h>
  
--- 15,20 ----
*************** void test_failbit()
*** 30,36 ****
  
    istringstream stream("jaylib - champion sound");
    stream.exceptions(ios_base::failbit);
!   
    try
      {
        T i;
--- 27,33 ----
  
    istringstream stream("jaylib - champion sound");
    stream.exceptions(ios_base::failbit);
! 
    try
      {
        T i;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/exceptions_failbit.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <sstream>
  #include <testsuite_hooks.h>
  
--- 15,20 ----
*************** void test_failbit()
*** 30,36 ****
  
    wistringstream stream(L"jaylib - champion sound");
    stream.exceptions(ios_base::failbit);
!   
    try
      {
        T i;
--- 27,33 ----
  
    wistringstream stream(L"jaylib - champion sound");
    stream.exceptions(ios_base::failbit);
! 
    try
      {
        T i;
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_null.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_null.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_null.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/char/exceptions_null.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <istream>
  #include <ostream>
  #include <streambuf>
--- 15,20 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_null.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_null.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_null.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/exceptions_null.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <istream>
  #include <ostream>
  #include <streambuf>
--- 15,20 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/12297.cc	Wed Aug  8 15:40:11 2018
***************
*** 18,26 ****
  
  // 27.6.1.1.2 class basic_istream::sentry
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <sstream>
  #include <testsuite_hooks.h>
  
--- 18,23 ----
*************** int main()
*** 29,35 ****
    using namespace std;
    istringstream stream;
    stream.exceptions(ios_base::eofbit);
!   
    try
      {
        istream::sentry sentry(stream, false);
--- 26,32 ----
    using namespace std;
    istringstream stream;
    stream.exceptions(ios_base::eofbit);
! 
    try
      {
        istream::sentry sentry(stream, false);
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/53984.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/53984.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/53984.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/char/53984.cc	Mon Sep  4 16:52:25 2017
***************
*** 0 ****
--- 1,41 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include <streambuf>
+ #include <istream>
+ #include <testsuite_hooks.h>
+ 
+ struct SB : std::streambuf
+ {
+   virtual int_type underflow() { throw 1; }
+ };
+ 
+ void
+ test01()
+ {
+   SB sb;
+   std::istream is(&sb);
+   int i;
+   is >> i;
+   VERIFY( is.bad() );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  // 27.6.1.1.2 class basic_istream::sentry
  
  #include <sstream>
--- 15,20 ----
*************** int main()
*** 28,34 ****
    using namespace std;
    wistringstream stream;
    stream.exceptions(ios_base::eofbit);
!   
    try
      {
        wistream::sentry sentry(stream, false);
--- 25,31 ----
    using namespace std;
    wistringstream stream;
    stream.exceptions(ios_base::eofbit);
! 
    try
      {
        wistream::sentry sentry(stream, false);
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_null.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_null.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_null.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/exceptions_null.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <istream>
  #include <ostream>
  #include <streambuf>
--- 15,20 ----
*************** void test3()
*** 41,47 ****
  
    ostringstream stream;
    stream.exceptions(ios_base::badbit);
! 	
    try
      {
        stream << static_cast<streambuf*>(0);
--- 38,44 ----
  
    ostringstream stream;
    stream.exceptions(ios_base::badbit);
! 
    try
      {
        stream << static_cast<streambuf*>(0);
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_null.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_null.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_null.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/exceptions_null.cc	Wed Aug  8 15:40:11 2018
***************
*** 15,23 ****
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <istream>
  #include <ostream>
  #include <streambuf>
--- 15,20 ----
*************** void test3()
*** 41,47 ****
  
    wostringstream stream;
    stream.exceptions(ios_base::badbit);
! 	
    try
      {
        stream << static_cast<wstreambuf*>(0);
--- 38,44 ----
  
    wostringstream stream;
    stream.exceptions(ios_base::badbit);
! 
    try
      {
        stream << static_cast<wstreambuf*>(0);
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_stringstream/assign/81338.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_stringstream/assign/81338.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/basic_stringstream/assign/81338.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/basic_stringstream/assign/81338.cc	Mon Sep  4 16:16:58 2017
***************
*** 0 ****
--- 1,40 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <sstream>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   std::stringstream ss;
+   for (int i = 0; i < 100; ++i)
+   {
+     ss << 'a';
+     VERIFY( static_cast<bool>(ss) );
+     VERIFY( ss.str() == "a" );
+     ss = std::stringstream();
+   }
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/ios_base/failure/dual_abi.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/ios_base/failure/dual_abi.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/ios_base/failure/dual_abi.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/ios_base/failure/dual_abi.cc	Wed Aug  8 15:40:11 2018
***************
*** 0 ****
--- 1,98 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=1" }
+ // { dg-do run }
+ 
+ #include <fstream>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   using std::ios;
+   bool caught_ios_failure = false;
+   bool rethrown = false;
+   bool caught_exception = false;
+   try {
+     std::ifstream f;
+     f.exceptions(ios::failbit | ios::badbit | ios::eofbit);
+     try {
+       f.get();
+     }
+     catch (const ios::failure&) // catch as new ABI type
+     {
+       caught_ios_failure = true;
+ #if _GLIBCXX_USE_DUAL_ABI || _GLIBCXX_USE_CXX11_ABI == 1
+       rethrown = true;
+       throw; // re-throw, to catch as old ABI type
+ #endif
+     }
+   }
+   catch (const std::exception& e)
+   {
+     caught_exception = true;
+   }
+ 
+   VERIFY( caught_ios_failure );
+   if (rethrown)
+     VERIFY( caught_exception );
+ }
+ 
+ void
+ test02()
+ {
+   using std::ios;
+   const std::exception* p = nullptr;
+   bool caught_ios_failure = false;
+   bool caught_exception = false;
+   try {
+     std::ifstream f;
+     f.exceptions(ios::failbit | ios::badbit | ios::eofbit);
+     try {
+       f.get();
+     }
+     catch (const std::exception& e1)
+     {
+       caught_exception = true;
+       p = &e1;
+       throw;
+     }
+   }
+   catch (const ios::failure& e2)
+   {
+     caught_ios_failure = true;
+ #if _GLIBCXX_USE_DUAL_ABI
+     // If the Dual ABI is active the library throws the old type,
+     // so e1 was an object of that old type and so &e1 != &e2.
+     VERIFY( p != &e2 );
+ #else
+     // Otherwise there's only one type of ios::failure, so &e1 == &e2.
+     VERIFY( p == &e2 );
+ #endif
+   }
+ 
+   VERIFY( caught_exception );
+   VERIFY( caught_ios_failure );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/27_io/ios_base/storage/2.cc gcc-6.5.0/libstdc++-v3/testsuite/27_io/ios_base/storage/2.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/27_io/ios_base/storage/2.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/27_io/ios_base/storage/2.cc	Wed Aug  8 15:40:11 2018
***************
*** 28,36 ****
  // Radar 6467884: 10.X systems are not robust when paging space is exceeded
  // { dg-skip-if "" { *-*-darwin* && lp64 } { "*" } { "" } } 
  
- // The library still throws the original definition of std::ios::failure
- // { dg-options "-D_GLIBCXX_USE_CXX11_ABI=0" }
- 
  #include <sstream>
  #include <iostream>
  #include <limits>
--- 28,33 ----
*************** void test02()
*** 52,59 ****
    // pword
    ios.pword(1) = v;
    VERIFY( ios.pword(1) == v );
!   
!   try 
      {
        v = ios.pword(max);
      }
--- 49,56 ----
    // pword
    ios.pword(1) = v;
    VERIFY( ios.pword(1) == v );
! 
!   try
      {
        v = ios.pword(max);
      }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/28_regex/basic_regex/85098.cc gcc-6.5.0/libstdc++-v3/testsuite/28_regex/basic_regex/85098.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/28_regex/basic_regex/85098.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/28_regex/basic_regex/85098.cc	Fri Oct 12 11:37:46 2018
***************
*** 0 ****
--- 1,45 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-options "-O0" }
+ // { dg-do link { target c++11 } }
+ 
+ #include <regex>
+ 
+ void f(const std::regex_constants::syntax_option_type&) { }
+ 
+ void
+ test01()
+ {
+   f(std::regex::icase);
+   f(std::regex::nosubs);
+   f(std::regex::optimize);
+   f(std::regex::collate);
+   f(std::regex::ECMAScript);
+   f(std::regex::basic);
+   f(std::regex::extended);
+   f(std::regex::awk);
+   f(std::regex::grep);
+   f(std::regex::egrep);
+   // f(std::regex::multiline);
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/83598.cc gcc-6.5.0/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/83598.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/83598.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/28_regex/basic_regex/ctors/83598.cc	Fri Jan  5 22:47:54 2018
***************
*** 0 ****
--- 1,37 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++11 } }
+ 
+ #include <regex>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   // PR libstdc++83598
+   std::regex r1(".", std::regex_constants::syntax_option_type{});
+   VERIFY(r1.flags() == std::regex_constants::syntax_option_type{});
+   std::regex r2(".", std::regex_constants::icase);
+   VERIFY(r2.flags() == std::regex_constants::icase);
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/char/default.cc gcc-6.5.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/char/default.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/char/default.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/char/default.cc	Fri Jan  5 22:48:00 2018
*************** void test01()
*** 32,37 ****
--- 32,39 ----
    std::cmatch cm;
    VERIFY( cm.size() == 0 );
    VERIFY( !cm.ready() );
+   VERIFY( cm.empty() );
+   VERIFY( cm.begin() == cm.end() ); // PR libstdc++/83600
  }
  
  void test02()
*************** void test02()
*** 41,46 ****
--- 43,50 ----
    std::smatch sm;
    VERIFY( sm.size() == 0 );
    VERIFY( !sm.ready() );
+   VERIFY( sm.empty() );
+   VERIFY( sm.begin() == sm.end() ); // PR libstdc++/83600
  }
  
  int
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/wchar_t/default.cc gcc-6.5.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/wchar_t/default.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/wchar_t/default.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/28_regex/match_results/ctors/wchar_t/default.cc	Fri Jan  5 22:48:00 2018
*************** void test01()
*** 32,37 ****
--- 32,39 ----
    std::wcmatch cm;
    VERIFY( cm.size() == 0 );
    VERIFY( !cm.ready() );
+   VERIFY( cm.empty() );
+   VERIFY( cm.begin() == cm.end() ); // PR libstdc++/83600
  }
  
  void test02()
*************** void test02()
*** 41,46 ****
--- 43,50 ----
    std::wsmatch sm;
    VERIFY( sm.size() == 0 );
    VERIFY( !sm.ready() );
+   VERIFY( sm.empty() );
+   VERIFY( sm.begin() == sm.end() ); // PR libstdc++/83600
  }
  
  int
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/30_threads/condition_variable/members/68519.cc gcc-6.5.0/libstdc++-v3/testsuite/30_threads/condition_variable/members/68519.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/30_threads/condition_variable/members/68519.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/30_threads/condition_variable/members/68519.cc	Wed Aug  8 15:40:41 2018
***************
*** 0 ****
--- 1,51 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run }
+ // { dg-options "-pthread"  }
+ // { dg-require-effective-target c++11 }
+ // { dg-require-effective-target pthread }
+ // { dg-require-cstdint "" }
+ // { dg-require-gthreads "" }
+ 
+ #include <condition_variable>
+ #include <testsuite_hooks.h>
+ 
+ // PR libstdc++/68519
+ 
+ bool val = false;
+ std::mutex mx;
+ std::condition_variable cv;
+ 
+ void
+ test01()
+ {
+   for (int i = 0; i < 3; ++i)
+   {
+     std::unique_lock<std::mutex> l(mx);
+     auto start = std::chrono::system_clock::now();
+     cv.wait_for(l, std::chrono::duration<float>(1), [] { return val; });
+     auto t = std::chrono::system_clock::now();
+     VERIFY( (t - start) >= std::chrono::seconds(1) );
+   }
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit2.cc gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit2.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit2.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/at_thread_exit2.cc	Wed Jul 12 10:15:53 2017
***************
*** 0 ****
--- 1,168 ----
+ // { dg-do run { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-rtems* *-*-darwin* powerpc-ibm-aix* } }
+ // { dg-options "-pthread" { target *-*-freebsd* *-*-dragonfly* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* powerpc-ibm-aix* } }
+ // { dg-require-effective-target c++11 }
+ // { dg-require-cstdint "" }
+ // { dg-require-gthreads "" }
+ // { dg-require-atomic-builtins "" }
+ 
+ // Copyright (C) 2014-2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // Test set_value_at_thread_exit error conditions
+ 
+ #include <future>
+ #include <testsuite_hooks.h>
+ 
+ void test01()
+ {
+   std::promise<int> p1;
+   p1.set_value(1);
+   try
+   {
+     p1.set_value_at_thread_exit(2);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::promise_already_satisfied );
+   }
+   try
+   {
+     p1.set_exception_at_thread_exit(std::make_exception_ptr(3));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::promise_already_satisfied );
+   }
+ 
+   std::promise<int> p2(std::move(p1));
+   try
+   {
+     p1.set_value_at_thread_exit(2);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::no_state );
+   }
+   try
+   {
+     p1.set_exception_at_thread_exit(std::make_exception_ptr(3));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::no_state );
+   }
+ }
+ 
+ void test02()
+ {
+   std::promise<int&> p1;
+   int i = 1;
+   p1.set_value(i);
+   try
+   {
+     p1.set_value_at_thread_exit(i);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::promise_already_satisfied );
+   }
+   try
+   {
+     p1.set_exception_at_thread_exit(std::make_exception_ptr(3));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::promise_already_satisfied );
+   }
+ 
+   std::promise<int&> p2(std::move(p1));
+   try
+   {
+     int i = 0;
+     p1.set_value_at_thread_exit(i);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::no_state );
+   }
+   try
+   {
+     p1.set_exception_at_thread_exit(std::make_exception_ptr(3));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::no_state );
+   }
+ }
+ 
+ void test03()
+ {
+   std::promise<void> p1;
+   int i = 0;
+   p1.set_value();
+   try {
+     p1.set_value_at_thread_exit();
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::promise_already_satisfied );
+   }
+   try
+   {
+     p1.set_exception_at_thread_exit(std::make_exception_ptr(3));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::promise_already_satisfied );
+   }
+ 
+   std::promise<void> p2(std::move(p1));
+   try {
+     p1.set_value_at_thread_exit();
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::no_state );
+   }
+   try
+   {
+     p1.set_exception_at_thread_exit(std::make_exception_ptr(3));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY( e.code() == std::future_errc::no_state );
+   }
+ }
+ 
+ int main()
+ {
+   test01();
+   test02();
+   test03();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception.cc	Tue Jul 11 12:38:35 2017
***************
*** 23,28 ****
--- 23,29 ----
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
+ // Test that promise::set_exception stores an exception.
  
  #include <future>
  #include <testsuite_hooks.h>
*************** void test01()
*** 50,57 ****
--- 51,106 ----
    VERIFY( !f1.valid() );
  }
  
+ void test02()
+ {
+   bool test = false;
+ 
+   std::promise<int&> p1;
+   std::future<int&> f1 = p1.get_future();
+ 
+   VERIFY( f1.valid() );
+ 
+   p1.set_exception(std::make_exception_ptr(0));
+ 
+   try
+   {
+     f1.get();
+   }
+   catch (int)
+   {
+     test = true;
+   }
+   VERIFY( test );
+   VERIFY( !f1.valid() );
+ }
+ 
+ void test03()
+ {
+   bool test = false;
+ 
+   std::promise<void> p1;
+   std::future<void> f1 = p1.get_future();
+ 
+   VERIFY( f1.valid() );
+ 
+   p1.set_exception(std::make_exception_ptr(0));
+ 
+   try
+   {
+     f1.get();
+   }
+   catch (int)
+   {
+     test = true;
+   }
+   VERIFY( test );
+   VERIFY( !f1.valid() );
+ }
+ 
  int main()
  {
    test01();
+   test02();
+   test03();
    return 0;
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/set_exception2.cc	Tue Jul 11 12:38:35 2017
***************
*** 23,32 ****
--- 23,35 ----
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
+ // Test that promise::set_exception throws when required.
  
  #include <future>
  #include <testsuite_hooks.h>
  
+ // Check for promise_already_satisfied error conditions.
+ 
  void test01()
  {
    bool test = false;
*************** void test02()
*** 85,93 ****
--- 88,274 ----
    VERIFY( test );
  }
  
+ void test03()
+ {
+   bool test = false;
+ 
+   std::promise<int&> p1;
+   std::future<int&> f1 = p1.get_future();
+ 
+   p1.set_exception(std::make_exception_ptr(0));
+ 
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(1));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   try
+   {
+     f1.get();
+     test = false;
+   }
+   catch(int i)
+   {
+     VERIFY( i == 0 );
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ void test04()
+ {
+   bool test = false;
+ 
+   std::promise<int&> p1;
+   std::future<int&> f1 = p1.get_future();
+ 
+   int i = 2;
+   p1.set_value(i);
+ 
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(0));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ void test05()
+ {
+   bool test = false;
+ 
+   std::promise<void> p1;
+   std::future<void> f1 = p1.get_future();
+ 
+   p1.set_exception(std::make_exception_ptr(0));
+ 
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(1));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   try
+   {
+     f1.get();
+     test = false;
+   }
+   catch(int i)
+   {
+     VERIFY( i == 0 );
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ void test06()
+ {
+   bool test = false;
+ 
+   std::promise<void> p1;
+   std::future<void> f1 = p1.get_future();
+ 
+   p1.set_value();
+ 
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(0));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ // Check for no_state error condition (PR libstdc++/80316)
+ 
+ void test07()
+ {
+   using namespace std;
+ 
+   promise<int> p1;
+   promise<int> p2(std::move(p1));
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(1));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() == make_error_code(future_errc::no_state));
+   }
+ }
+ 
+ void test08()
+ {
+   using namespace std;
+ 
+   promise<int&> p1;
+   promise<int&> p2(std::move(p1));
+   try
+   {
+     int i = 0;
+     p1.set_exception(std::make_exception_ptr(1));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() == make_error_code(future_errc::no_state));
+   }
+ }
+ 
+ void test09()
+ {
+   using namespace std;
+ 
+   promise<void> p1;
+   promise<void> p2(std::move(p1));
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(1));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() == make_error_code(future_errc::no_state));
+   }
+ }
+ 
  int main()
  {
    test01();
    test02();
+   test03();
+   test04();
+   test05();
+   test06();
+   test07();
+   test08();
+   test09();
    return 0;
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/30_threads/promise/members/set_value2.cc	Tue Jul 11 12:38:35 2017
***************
*** 23,32 ****
--- 23,35 ----
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
+ // Test that promise::set_value throws when required.
  
  #include <future>
  #include <testsuite_hooks.h>
  
+ // Check for promise_already_satisfied error conditions.
+ 
  void test01()
  {
    bool test = false;
*************** void test02()
*** 81,89 ****
--- 84,381 ----
    VERIFY( test );
  }
  
+ void test03()
+ {
+   bool test = false;
+ 
+   std::promise<int> p1;
+   std::future<int> f1 = p1.get_future();
+ 
+   p1.set_exception(std::make_exception_ptr(4));
+ 
+   try
+   {
+     p1.set_value(3);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   test = false;
+   try
+   {
+     f1.get();
+     VERIFY( false );
+   }
+   catch (int e)
+   {
+     VERIFY(e == 4 );
+     test = true;
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ void test04()
+ {
+   bool test = false;
+ 
+   std::promise<int&> p1;
+   std::future<int&> f1 = p1.get_future();
+ 
+   int i = 1;
+   p1.set_value(i);
+ 
+   try
+   {
+     p1.set_value(i);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   VERIFY( f1.get() == 1 );
+   VERIFY( test );
+ }
+ 
+ void test05()
+ {
+   bool test = false;
+ 
+   std::promise<int&> p1;
+   std::future<int&> f1 = p1.get_future();
+ 
+   int i = 3;
+   p1.set_value(i);
+ 
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(4));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   VERIFY( f1.get() == 3 );
+   VERIFY( test );
+ }
+ 
+ void test06()
+ {
+   bool test = false;
+ 
+   std::promise<int&> p1;
+   std::future<int&> f1 = p1.get_future();
+ 
+   p1.set_exception(std::make_exception_ptr(4));
+ 
+   try
+   {
+     int i = 3;
+     p1.set_value(i);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   test = false;
+   try
+   {
+     f1.get();
+     VERIFY( false );
+   }
+   catch (int e)
+   {
+     VERIFY(e == 4 );
+     test = true;
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ void test07()
+ {
+   bool test = false;
+ 
+   std::promise<void> p1;
+   std::future<void> f1 = p1.get_future();
+ 
+   p1.set_value();
+ 
+   try
+   {
+     p1.set_value();
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   f1.get();
+   VERIFY( test );
+ }
+ 
+ void test08()
+ {
+   bool test = false;
+ 
+   std::promise<void> p1;
+   std::future<void> f1 = p1.get_future();
+ 
+   p1.set_value();
+ 
+   try
+   {
+     p1.set_exception(std::make_exception_ptr(4));
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   f1.get();
+   VERIFY( test );
+ }
+ 
+ void test09()
+ {
+   bool test = false;
+ 
+   std::promise<void> p1;
+   std::future<void> f1 = p1.get_future();
+ 
+   p1.set_exception(std::make_exception_ptr(4));
+ 
+   try
+   {
+     p1.set_value();
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() ==
+         std::make_error_code(std::future_errc::promise_already_satisfied));
+     test = true;
+   }
+ 
+   std::chrono::milliseconds delay(1);
+   VERIFY( f1.wait_for(delay) == std::future_status::ready );
+   test = false;
+   try
+   {
+     f1.get();
+     VERIFY( false );
+   }
+   catch (int e)
+   {
+     VERIFY(e == 4 );
+     test = true;
+   }
+ 
+   VERIFY( test );
+ }
+ 
+ // Check for no_state error condition (PR libstdc++/80316)
+ 
+ void test10()
+ {
+   using namespace std;
+ 
+   promise<int> p1;
+   promise<int> p2(std::move(p1));
+   try
+   {
+     p1.set_value(1);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() == make_error_code(future_errc::no_state));
+   }
+ }
+ 
+ void test11()
+ {
+   using namespace std;
+ 
+   promise<int&> p1;
+   promise<int&> p2(std::move(p1));
+   try
+   {
+     int i = 0;
+     p1.set_value(i);
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() == make_error_code(future_errc::no_state));
+   }
+ }
+ 
+ void test12()
+ {
+   using namespace std;
+ 
+   promise<void> p1;
+   promise<void> p2(std::move(p1));
+   try
+   {
+     p1.set_value();
+     VERIFY( false );
+   }
+   catch (std::future_error& e)
+   {
+     VERIFY(e.code() == make_error_code(future_errc::no_state));
+   }
+ }
+ 
  int main()
  {
    test01();
    test02();
+   test03();
+   test04();
+   test05();
+   test06();
+   test07();
+   test08();
+   test09();
+   test10();
+   test11();
+   test12();
    return 0;
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc	Mon Dec 12 14:09:39 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc	Fri Jan  5 22:48:28 2018
*************** void
*** 28,33 ****
--- 28,34 ----
  test01()
  {
    bool test __attribute__((unused)) = false;
+   const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
    std::error_code ec;
  
    // Test non-existent path.
*************** test01()
*** 37,51 ****
    VERIFY( iter == end(iter) );
  
    // Test empty directory.
    create_directory(p, fs::current_path(), ec);
    VERIFY( !ec );
    iter = fs::recursive_directory_iterator(p, ec);
    VERIFY( !ec );
    VERIFY( iter == end(iter) );
  
    // Test non-empty directory.
!   create_directories(p / "d1/d2");
    VERIFY( !ec );
    iter = fs::recursive_directory_iterator(p, ec);
    VERIFY( !ec );
    VERIFY( iter != end(iter) );
--- 38,56 ----
    VERIFY( iter == end(iter) );
  
    // Test empty directory.
+   ec = bad_ec;
    create_directory(p, fs::current_path(), ec);
    VERIFY( !ec );
+   ec = bad_ec;
    iter = fs::recursive_directory_iterator(p, ec);
    VERIFY( !ec );
    VERIFY( iter == end(iter) );
  
    // Test non-empty directory.
!   ec = bad_ec;
!   create_directories(p / "d1/d2", ec);
    VERIFY( !ec );
+   ec = bad_ec;
    iter = fs::recursive_directory_iterator(p, ec);
    VERIFY( !ec );
    VERIFY( iter != end(iter) );
*************** test01()
*** 56,61 ****
--- 61,67 ----
    VERIFY( iter == end(iter) );
  
    // Test inaccessible directory.
+   ec = bad_ec;
    permissions(p, fs::perms::none, ec);
    VERIFY( !ec );
    iter = fs::recursive_directory_iterator(p, ec);
*************** test01()
*** 64,78 ****
--- 70,88 ----
  
    // Test inaccessible directory, skipping permission denied.
    const auto opts = fs::directory_options::skip_permission_denied;
+   ec = bad_ec;
    iter = fs::recursive_directory_iterator(p, opts, ec);
    VERIFY( !ec );
    VERIFY( iter == end(iter) );
  
    // Test inaccessible sub-directory.
+   ec = bad_ec;
    permissions(p, fs::perms::owner_all, ec);
    VERIFY( !ec );
+   ec = bad_ec;
    permissions(p/"d1/d2", fs::perms::none, ec);
    VERIFY( !ec );
+   ec = bad_ec;
    iter = fs::recursive_directory_iterator(p, ec);
    VERIFY( !ec );
    VERIFY( iter != end(iter) );
*************** test01()
*** 84,95 ****
--- 94,107 ----
    VERIFY( iter == end(iter) );
  
    // Test inaccessible sub-directory, skipping permission denied.
+   ec = bad_ec;
    iter = fs::recursive_directory_iterator(p, opts, ec);
    VERIFY( !ec );
    VERIFY( iter != end(iter) );
    VERIFY( iter->path() == p/"d1" );
    ++iter;              // should recurse into d1
    VERIFY( iter->path() == p/"d1/d2" );
+   ec = bad_ec;
    iter.increment(ec);  // should fail to recurse into p/d1/d2, so skip it
    VERIFY( !ec );
    VERIFY( iter == end(iter) );
*************** test02()
*** 103,114 ****
--- 115,129 ----
  {
    bool test __attribute__((unused)) = false;
  
+   const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
    std::error_code ec;
    const auto p = __gnu_test::nonexistent_path();
+   ec = bad_ec;
    create_directories(p / "d1/d2", ec);
    VERIFY( !ec );
  
    // Test post-increment (libstdc++/71005)
+   ec = bad_ec;
    auto iter = fs::recursive_directory_iterator(p, ec);
    VERIFY( !ec );
    VERIFY( iter != end(iter) );
*************** test03()
*** 130,136 ****
  {
    bool test __attribute__((unused)) = false;
  
!   std::error_code ec;
    const auto p = __gnu_test::nonexistent_path();
    create_directories(p / "longer_than_small_string_buffer", ec);
    VERIFY( !ec );
--- 145,151 ----
  {
    bool test __attribute__((unused)) = false;
  
!   std::error_code ec = make_error_code(std::errc::invalid_argument);
    const auto p = __gnu_test::nonexistent_path();
    create_directories(p / "longer_than_small_string_buffer", ec);
    VERIFY( !ec );
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directory.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directory.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directory.cc	Wed May 25 15:44:44 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directory.cc	Fri Jan  5 22:48:28 2018
*************** test01()
*** 50,56 ****
    VERIFY( !ec );
    VERIFY( !b );
    b = create_directory(p);
-   VERIFY( !ec );
    VERIFY( !b );
  
    remove_all(p, ec);
--- 50,55 ----
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove.cc	Mon Jan 15 12:38:52 2018
***************
*** 0 ****
--- 1,100 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-options "-lstdc++fs" }
+ // { dg-do run { target c++11 } }
+ // { dg-require-filesystem-ts "" }
+ 
+ #include <experimental/filesystem>
+ #include <testsuite_hooks.h>
+ #include <testsuite_fs.h>
+ 
+ namespace fs = std::experimental::filesystem;
+ 
+ void
+ test01()
+ {
+   std::error_code ec;
+   const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
+   bool n;
+ 
+   n = fs::remove("", ec);
+   VERIFY( !ec ); // This seems odd, but is what the standard requires.
+   VERIFY( !n );
+ 
+   auto p = __gnu_test::nonexistent_path();
+   ec = bad_ec;
+   n = remove(p, ec);
+   VERIFY( !ec );
+   VERIFY( !n );
+ 
+   auto link = __gnu_test::nonexistent_path();
+   create_symlink(p, link);  // dangling symlink
+   ec = bad_ec;
+   n = remove(link, ec);
+   VERIFY( !ec );
+   VERIFY( n );
+   VERIFY( !exists(symlink_status(link)) );
+ 
+   __gnu_test::scoped_file f(p);
+   create_symlink(p, link);
+   ec = bad_ec;
+   n = remove(link, ec);
+   VERIFY( !ec );
+   VERIFY( n );
+   VERIFY( !exists(symlink_status(link)) );  // The symlink is removed, but
+   VERIFY( exists(p) );                      // its target is not.
+ 
+   ec = bad_ec;
+   n = remove(p, ec);
+   VERIFY( !ec );
+   VERIFY( n );
+   VERIFY( !exists(symlink_status(p)) );
+ 
+   const auto dir = __gnu_test::nonexistent_path();
+   create_directories(dir/"a/b");
+   ec.clear();
+   n = remove(dir/"a", ec);
+   VERIFY( ec );
+   VERIFY( !n );
+   VERIFY( exists(dir/"a/b") );
+ 
+   permissions(dir, fs::perms::none, ec);
+   if (!ec)
+   {
+     ec.clear();
+     n = remove(dir/"a/b", ec);
+     VERIFY( ec );
+     VERIFY( !n );
+     permissions(dir, fs::perms::owner_all, ec);
+   }
+ 
+   ec = bad_ec;
+   n = remove(dir/"a/b", ec);
+   VERIFY( !ec );
+   VERIFY( n );
+   VERIFY( !exists(dir/"a/b") );
+ 
+   remove(dir/"a", ec);
+   remove(dir, ec);
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc	Mon Dec 12 14:09:39 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc	Mon Jan 15 12:38:52 2018
***************
*** 1,4 ****
! // Copyright (C) 2016 Free Software Foundation, Inc.
  //
  // This file is part of the GNU ISO C++ Library.  This library is free
  // software; you can redistribute it and/or modify it under the
--- 1,4 ----
! // Copyright (C) 2016-2018 Free Software Foundation, Inc.
  //
  // This file is part of the GNU ISO C++ Library.  This library is free
  // software; you can redistribute it and/or modify it under the
*************** void
*** 29,47 ****
  test01()
  {
    std::error_code ec;
    std::uintmax_t n;
  
    n = fs::remove_all("", ec);
!   VERIFY( ec );
!   VERIFY( n == std::uintmax_t(-1) );
  
    auto p = __gnu_test::nonexistent_path();
!   ec.clear();
    n = remove_all(p, ec);
!   VERIFY( ec );
!   VERIFY( n == std::uintmax_t(-1) );
  
-   const auto bad_ec = ec;
    auto link = __gnu_test::nonexistent_path();
    create_symlink(p, link);  // dangling symlink
    ec = bad_ec;
--- 29,47 ----
  test01()
  {
    std::error_code ec;
+   const std::error_code bad_ec = make_error_code(std::errc::invalid_argument);
    std::uintmax_t n;
  
    n = fs::remove_all("", ec);
!   VERIFY( !ec ); // This seems odd, but is what the TS requires.
!   VERIFY( n == 0 );
  
    auto p = __gnu_test::nonexistent_path();
!   ec = bad_ec;
    n = remove_all(p, ec);
!   VERIFY( !ec );
!   VERIFY( n == 0 );
  
    auto link = __gnu_test::nonexistent_path();
    create_symlink(p, link);  // dangling symlink
    ec = bad_ec;
*************** test01()
*** 59,65 ****
    VERIFY( !exists(symlink_status(link)) );  // The symlink is removed, but
    VERIFY( exists(p) );                      // its target is not.
  
!   auto dir = __gnu_test::nonexistent_path();
    create_directories(dir/"a/b/c");
    ec = bad_ec;
    n = remove_all(dir/"a", ec);
--- 59,65 ----
    VERIFY( !exists(symlink_status(link)) );  // The symlink is removed, but
    VERIFY( exists(p) );                      // its target is not.
  
!   const auto dir = __gnu_test::nonexistent_path();
    create_directories(dir/"a/b/c");
    ec = bad_ec;
    n = remove_all(dir/"a", ec);
*************** test01()
*** 85,92 ****
--- 85,112 ----
    b2.path.clear();
  }
  
+ void
+ test02()
+ {
+   const auto dir = __gnu_test::nonexistent_path();
+   create_directories(dir/"a/b/c");
+   std::uintmax_t n = remove_all(dir/"a");
+   VERIFY( n == 3 );
+   VERIFY( exists(dir) );
+   VERIFY( !exists(dir/"a") );
+ 
+   n = remove_all(dir/"a");
+   VERIFY( n == 0 );
+   VERIFY( exists(dir) );
+ 
+   n = remove_all(dir);
+   VERIFY( n == 1 );
+   VERIFY( !exists(dir) );
+ }
+ 
  int
  main()
  {
    test01();
+   test02();
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/space.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/space.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/space.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/space.cc	Thu May  3 20:39:31 2018
***************
*** 0 ****
--- 1,57 ----
+ // Copyright (C) 2017-2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-options "-DUSE_FILESYSTEM_TS -lstdc++fs" }
+ // { dg-do run { target c++11 } }
+ // { dg-require-filesystem-ts "" }
+ 
+ // 30.10.14.3 Permissions [fs.op.space]
+ 
+ #include <experimental/filesystem>
+ #include <testsuite_fs.h>
+ #include <testsuite_hooks.h>
+ 
+ namespace fs = std::experimental::filesystem;
+ 
+ void
+ test01()
+ {
+   fs::space_info s = fs::space("/");
+   std::error_code ec = make_error_code(std::errc::invalid_argument);
+   s = fs::space("/", ec);
+   VERIFY( !ec );
+ 
+   s = fs::space(__gnu_test::nonexistent_path(), ec);
+   VERIFY( ec );
+   VERIFY( s.capacity ==  static_cast<uintmax_t>(-1) );
+   VERIFY( s.free ==  static_cast<uintmax_t>(-1) );
+   VERIFY( s.available ==  static_cast<uintmax_t>(-1) );
+ }
+ 
+ void
+ test02()
+ {
+   fs::space_info s = fs::space(".");
+   VERIFY( s.capacity >= s.free );
+ }
+ 
+ int
+ main()
+ {
+   test01();
+   test02();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/temp_directory_path.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/temp_directory_path.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/operations/temp_directory_path.cc	Mon Dec 12 14:09:39 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/operations/temp_directory_path.cc	Fri Jan  5 22:48:28 2018
*************** test01()
*** 44,50 ****
    if (!fs::exists("/tmp"))
      return; // just give up
  
!   std::error_code ec;
    fs::path p1 = fs::temp_directory_path(ec);
    VERIFY( !ec );
    VERIFY( exists(p1) );
--- 44,50 ----
    if (!fs::exists("/tmp"))
      return; // just give up
  
!   std::error_code ec = make_error_code(std::errc::invalid_argument);
    fs::path p1 = fs::temp_directory_path(ec);
    VERIFY( !ec );
    VERIFY( exists(p1) );
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/path/itr/traversal.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/path/itr/traversal.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/filesystem/path/itr/traversal.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/filesystem/path/itr/traversal.cc	Mon Oct 23 17:47:05 2017
*************** test02()
*** 78,86 ****
--- 78,104 ----
    }
  }
  
+ void
+ test03()
+ {
+   path paths[] = { "single", "multiple/elements" };
+   for (const path& p : paths)
+     for (auto iter = p.begin(); iter != p.end(); ++iter)
+     {
+       auto iter2 = iter;
+       ++iter;
+       iter2++;
+       VERIFY( iter2 == iter );
+       --iter;
+       iter2--;
+       VERIFY( iter2 == iter );
+     }
+ }
+ 
  int
  main()
  {
    test01();
    test02();
+   test03();
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/memory_resource/70966.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/memory_resource/70966.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/memory_resource/70966.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/memory_resource/70966.cc	Fri Oct 12 13:04:24 2018
***************
*** 0 ****
--- 1,56 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do run { target c++14 } }
+ 
+ #include <experimental/memory_resource>
+ 
+ namespace pmr = std::experimental::pmr;
+ 
+ struct X
+ {
+   pmr::memory_resource* res = nullptr;
+   void* ptr = nullptr;
+   static constexpr std::size_t n = 64;
+ 
+   constexpr X() { }
+ 
+   explicit
+   X(pmr::memory_resource* r) : res(r), ptr(r->allocate(n)) { }
+ 
+   ~X() { if (ptr) res->deallocate(ptr, n); }
+ };
+ 
+ void
+ swap(X& lhs, X& rhs) {
+     std::swap(lhs.res, rhs.res);
+     std::swap(lhs.ptr, rhs.ptr);
+ }
+ 
+ void
+ test01()
+ {
+   static X x1;
+   X x2(pmr::new_delete_resource());
+   swap(x1, x2);
+   // Now x1 will deallocate the memory during destruction of static objects.
+ }
+ 
+ int main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,28 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/deque>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ 
+ static_assert(std::is_same<xpmr::deque<X>,
+     std::deque<X, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::deque");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_forward_list.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_forward_list.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_forward_list.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_forward_list.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,28 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/forward_list>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ 
+ static_assert(std::is_same<xpmr::forward_list<X>,
+     std::forward_list<X, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::forward_list");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,28 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/list>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ 
+ static_assert(std::is_same<xpmr::list<X>,
+     std::list<X, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::list");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,35 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/map>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Y { };
+ struct Cmp { bool operator()(X, X) const { return false; } };
+ 
+ static_assert(std::is_same<xpmr::map<X, Y>,
+     std::map<X, Y, std::less<X>,
+ 	     xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::map");
+ static_assert(std::is_same<xpmr::map<X, Y, Cmp>,
+     std::map<X, Y, Cmp,
+ 	     xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::map");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,52 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ 
+ #include <experimental/regex>
+ 
+ #if _GLIBCXX_USE_CXX11_ABI
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X;
+ static_assert(std::is_same<xpmr::match_results<X*>,
+     std::match_results<X*,
+       xpmr::polymorphic_allocator<std::sub_match<X*>>>>::value,
+     "pmr::match_results");
+ 
+ static_assert(std::is_same<xpmr::cmatch,
+     std::match_results<const char*,
+       xpmr::polymorphic_allocator<std::sub_match<const char*>>>>::value,
+     "pmr::cmatch");
+ static_assert(std::is_same<xpmr::smatch,
+     std::match_results<xpmr::string::const_iterator,
+       xpmr::polymorphic_allocator<
+ 	std::sub_match<xpmr::string::const_iterator>>>>::value,
+     "pmr::smatch");
+ #ifdef _GLIBCXX_USE_WCHAR_T
+ static_assert(std::is_same<xpmr::wcmatch,
+     std::match_results<const wchar_t*,
+       xpmr::polymorphic_allocator<std::sub_match<const wchar_t*>>>>::value,
+     "pmr::wcmatch");
+ static_assert(std::is_same<xpmr::wsmatch,
+     std::match_results<xpmr::wstring::const_iterator,
+       xpmr::polymorphic_allocator<
+ 	std::sub_match<xpmr::wstring::const_iterator>>>>::value,
+     "pmr::wsmatch");
+ #endif
+ #endif
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multimap.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multimap.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multimap.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multimap.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,35 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/map>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Y { };
+ struct Cmp { bool operator()(X, X) const { return false; } };
+ 
+ static_assert(std::is_same<xpmr::multimap<X, Y>,
+     std::multimap<X, Y, std::less<X>,
+ 		  xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::multimap");
+ static_assert(std::is_same<xpmr::multimap<X, Y, Cmp>,
+     std::multimap<X, Y, Cmp,
+ 		  xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::multimap");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multiset.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multiset.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multiset.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_multiset.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,32 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/set>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Cmp { bool operator()(X, X) const { return false; } };
+ 
+ static_assert(std::is_same<xpmr::multiset<X>,
+     std::multiset<X, std::less<X>, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::multiset");
+ static_assert(std::is_same<xpmr::multiset<X, Cmp>,
+     std::multiset<X, Cmp, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::multiset");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,32 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/set>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Cmp { bool operator()(X, X) const { return false; } };
+ 
+ static_assert(std::is_same<xpmr::set<X>,
+     std::set<X, std::less<X>, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::set");
+ static_assert(std::is_same<xpmr::set<X, Cmp>,
+     std::set<X, Cmp, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::set");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,62 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/string>
+ 
+ #if _GLIBCXX_USE_CXX11_ABI
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct T : std::char_traits<char> { };
+ 
+ static_assert(std::is_same<xpmr::basic_string<char>,
+     std::basic_string<char, std::char_traits<char>,
+ 		      xpmr::polymorphic_allocator<char>>>::value,
+     "pmr::basic_string");
+ static_assert(std::is_same<xpmr::basic_string<char, T>,
+     std::basic_string<char, T, xpmr::polymorphic_allocator<char>>>::value,
+     "pmr::basic_string");
+ 
+ static_assert(std::is_same<xpmr::string,
+     std::basic_string<char, std::char_traits<char>,
+ 		      xpmr::polymorphic_allocator<char>>>::value,
+     "pmr::string");
+ static_assert(std::is_same<xpmr::u16string,
+     std::basic_string<char16_t, std::char_traits<char16_t>,
+ 		      xpmr::polymorphic_allocator<char16_t>>>::value,
+     "pmr::u16string");
+ static_assert(std::is_same<xpmr::u32string,
+     std::basic_string<char32_t, std::char_traits<char32_t>,
+ 		      xpmr::polymorphic_allocator<char32_t>>>::value,
+     "pmr::u32string");
+ 
+ #ifdef _GLIBCXX_USE_WCHAR_T
+ static_assert(std::is_same<xpmr::basic_string<wchar_t>,
+     std::basic_string<wchar_t, std::char_traits<wchar_t>,
+ 		      xpmr::polymorphic_allocator<wchar_t>>>::value,
+     "pmr::basic_string<wchar_t>");
+ static_assert(std::is_same<xpmr::basic_string<wchar_t, T>,
+     std::basic_string<wchar_t, T, xpmr::polymorphic_allocator<wchar_t>>>::value,
+     "pmr::basic_string<wchar_t>");
+ 
+ static_assert(std::is_same<xpmr::wstring,
+     std::basic_string<wchar_t, std::char_traits<wchar_t>,
+ 		      xpmr::polymorphic_allocator<wchar_t>>>::value,
+     "pmr::wstring");
+ #endif
+ #endif
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_map.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_map.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_map.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_map.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,40 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/unordered_map>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Y { };
+ struct Hash { std::size_t operator()(X) const { return 0; } };
+ struct Eq { bool operator()(X, X) const { return true; } };
+ 
+ static_assert(std::is_same<xpmr::unordered_map<X, Y>,
+     std::unordered_map<X, Y, std::hash<X>, std::equal_to<X>,
+       xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::unordered_map");
+ static_assert(std::is_same<xpmr::unordered_map<X, Y, Hash>,
+     std::unordered_map<X, Y, Hash, std::equal_to<X>,
+       xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::unordered_map");
+ static_assert(std::is_same<xpmr::unordered_map<X, Y, Hash, Eq>,
+     std::unordered_map<X, Y, Hash, Eq,
+       xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::unordered_map");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multimap.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multimap.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multimap.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multimap.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,40 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/unordered_map>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Y { };
+ struct Hash { std::size_t operator()(X) const { return 0; } };
+ struct Eq { bool operator()(X, X) const { return true; } };
+ 
+ static_assert(std::is_same<xpmr::unordered_multimap<X, Y>,
+     std::unordered_multimap<X, Y, std::hash<X>, std::equal_to<X>,
+       xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::unordered_multimap");
+ static_assert(std::is_same<xpmr::unordered_multimap<X, Y, Hash>,
+     std::unordered_multimap<X, Y, Hash, std::equal_to<X>,
+       xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::unordered_multimap");
+ static_assert(std::is_same<xpmr::unordered_multimap<X, Y, Hash, Eq>,
+     std::unordered_multimap<X, Y, Hash, Eq,
+       xpmr::polymorphic_allocator<std::pair<const X, Y>>>>::value,
+     "pmr::unordered_multimap");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multiset.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multiset.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multiset.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_multiset.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,39 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/unordered_set>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Hash { std::size_t operator()(X) const { return 0; } };
+ struct Eq { bool operator()(X, X) const { return true; } };
+ 
+ static_assert(std::is_same<xpmr::unordered_multiset<X>,
+     std::unordered_multiset<X, std::hash<X>, std::equal_to<X>,
+       xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::unordered_multiset");
+ static_assert(std::is_same<xpmr::unordered_multiset<X, Hash>,
+     std::unordered_multiset<X, Hash, std::equal_to<X>,
+       xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::unordered_multiset");
+ static_assert(std::is_same<xpmr::unordered_multiset<X, Hash, Eq>,
+     std::unordered_multiset<X, Hash, Eq,
+       xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::unordered_multiset");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_set.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_set.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_set.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_unordered_set.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,39 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/unordered_set>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ struct Hash { std::size_t operator()(X) const { return 0; } };
+ struct Eq { bool operator()(X, X) const { return true; } };
+ 
+ static_assert(std::is_same<xpmr::unordered_set<X>,
+     std::unordered_set<X, std::hash<X>, std::equal_to<X>,
+       xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::unordered_set");
+ static_assert(std::is_same<xpmr::unordered_set<X, Hash>,
+     std::unordered_set<X, Hash, std::equal_to<X>,
+       xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::unordered_set");
+ static_assert(std::is_same<xpmr::unordered_set<X, Hash, Eq>,
+     std::unordered_set<X, Hash, Eq,
+       xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::unordered_set");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc	Fri Oct 12 13:04:38 2018
***************
*** 0 ****
--- 1,28 ----
+ // Copyright (C) 2018 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-do compile { target c++14 } }
+ 
+ #include <experimental/vector>
+ 
+ namespace xpmr = std::experimental::pmr;
+ 
+ struct X { };
+ 
+ static_assert(std::is_same<xpmr::vector<X>,
+     std::vector<X, xpmr::polymorphic_allocator<X>>>::value,
+     "pmr::vector");
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/ext/ext_pointer/1.cc gcc-6.5.0/libstdc++-v3/testsuite/ext/ext_pointer/1.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/ext/ext_pointer/1.cc	Mon Jan  4 14:30:50 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/ext/ext_pointer/1.cc	Fri Oct 12 13:04:44 2018
*************** void test04() {
*** 188,198 ****
--- 188,212 ----
    VERIFY(bPtr3 == aPtr);
  }
  
+ // Check that long long values can be used for pointer arithmetic.
+ void test05()
+ {
+   A a[2] = { 1, 2 };
+   A_pointer p = a;
+   A_pointer q = p + 0ull;
+   VERIFY( p == q );
+   q += 0ll;
+   VERIFY( p == q );
+   q += 1ll;
+   VERIFY( q->i == p[1ll].i );
+ }
+ 
  int main()
  {
    test01();
    test02();
    test03();
    test04();
+   test05();
    return 0;
  }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/79820.cc gcc-6.5.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/79820.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/79820.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/79820.cc	Mon Sep  4 16:52:30 2017
***************
*** 0 ****
--- 1,39 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-require-fileio "" }
+ 
+ #include <ext/stdio_filebuf.h>
+ #include <cstdio>
+ #include <cerrno>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   FILE* f = std::fopen("79820.txt", "w");
+   std::fclose(f);
+   errno = 127;
+   __gnu_cxx::stdio_filebuf<char> b(f, std::ios::out, BUFSIZ);
+   VERIFY(errno == 127); // PR libstdc++/79820
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/81751.cc gcc-6.5.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/81751.cc
*** gcc-6.4.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/81751.cc	Thu Jan  1 00:00:00 1970
--- gcc-6.5.0/libstdc++-v3/testsuite/ext/stdio_filebuf/char/81751.cc	Mon Sep  4 16:52:30 2017
***************
*** 0 ****
--- 1,53 ----
+ // Copyright (C) 2017 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library is free
+ // software; you can redistribute it and/or modify it under the
+ // terms of the GNU General Public License as published by the
+ // Free Software Foundation; either version 3, or (at your option)
+ // any later version.
+ 
+ // This library is distributed in the hope that it will be useful,
+ // but WITHOUT ANY WARRANTY; without even the implied warranty of
+ // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ // GNU General Public License for more details.
+ 
+ // You should have received a copy of the GNU General Public License along
+ // with this library; see the file COPYING3.  If not see
+ // <http://www.gnu.org/licenses/>.
+ 
+ // { dg-require-fileio "" }
+ 
+ #include <ext/stdio_filebuf.h>
+ #include <cstdio>
+ #include <cerrno>
+ #include <testsuite_hooks.h>
+ 
+ void
+ test01()
+ {
+   FILE* out = std::fopen("81751.txt", "w");
+   std::fwrite("Some words.", 1, 10, out);
+ 
+   FILE* in1 = std::fopen("81751.txt", "r");
+   __gnu_cxx::stdio_filebuf<char> buf1(in1, std::ios::in, BUFSIZ);
+   int c = buf1.sgetc();
+   VERIFY( c == std::char_traits<char>::eof() ); // PR libstdc++/81751
+ 
+   std::fflush(out);
+   FILE* in2 = std::fopen("81751.txt", "r");
+   __gnu_cxx::stdio_filebuf<char> buf2(in2, std::ios::in, BUFSIZ);
+   c = buf2.sgetc();
+   VERIFY( c == 'S' );
+ 
+   buf1.close();
+   buf2.close();
+   std::fclose(in1);
+   std::fclose(in2);
+   std::fclose(out);
+ }
+ 
+ int
+ main()
+ {
+   test01();
+ }
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/lib/libstdc++.exp gcc-6.5.0/libstdc++-v3/testsuite/lib/libstdc++.exp
*** gcc-6.4.0/libstdc++-v3/testsuite/lib/libstdc++.exp	Sat Aug  6 12:20:18 2016
--- gcc-6.5.0/libstdc++-v3/testsuite/lib/libstdc++.exp	Tue Oct  9 11:40:45 2018
*************** proc libstdc++_init { testfile } {
*** 235,241 ****
  
      # Default settings.
      set cxx [transform "g++"]
!     set cxxflags "-D_GLIBCXX_ASSERT -fmessage-length=0"
      set cxxpchflags ""
      set cxxvtvflags ""
      set cxxldflags ""
--- 235,241 ----
  
      # Default settings.
      set cxx [transform "g++"]
!     set cxxflags "-D_GLIBCXX_ASSERT -fmessage-length=0 -fno-show-column"
      set cxxpchflags ""
      set cxxvtvflags ""
      set cxxldflags ""
diff -Nrcpad gcc-6.4.0/libstdc++-v3/testsuite/util/testsuite_allocator.h gcc-6.5.0/libstdc++-v3/testsuite/util/testsuite_allocator.h
*** gcc-6.4.0/libstdc++-v3/testsuite/util/testsuite_allocator.h	Wed Feb  1 12:12:28 2017
--- gcc-6.5.0/libstdc++-v3/testsuite/util/testsuite_allocator.h	Wed Aug  8 15:40:47 2018
*************** namespace __gnu_test
*** 572,577 ****
--- 572,579 ----
  
        explicit PointerBase(T* p = nullptr) : value(p) { }
  
+       PointerBase(std::nullptr_t) : value(nullptr) { }
+ 
        template<typename D, typename U,
  	       typename = decltype(static_cast<T*>(std::declval<U*>()))>
  	PointerBase(const PointerBase<D, U>& p) : value(p.value) { }
*************** namespace __gnu_test
*** 605,611 ****
        }
  
      private:
!       Derived& derived() { return static_cast<Derived&>(*this); }
      };
  
      template<typename D, typename T>
--- 607,617 ----
        }
  
      private:
!       Derived&
!       derived() { return static_cast<Derived&>(*this); }
! 
!       const Derived&
!       derived() const { return static_cast<const Derived&>(*this); }
      };
  
      template<typename D, typename T>
diff -Nrcpad gcc-6.4.0/libvtv/ChangeLog gcc-6.5.0/libvtv/ChangeLog
*** gcc-6.4.0/libvtv/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/libvtv/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/lto-plugin/ChangeLog gcc-6.5.0/lto-plugin/ChangeLog
*** gcc-6.4.0/lto-plugin/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/lto-plugin/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,16 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
+ 2017-07-26  Georg-Johann Lay  <avr@gjlay.de>
+ 
+ 	Backport from 2017-07-26 gcc-7-branch r250562.
+ 
+ 	PR lto/81487
+ 	* lto-plugin.c (claim_file_handler): Use xasprintf instead of
+ 	asprintf.
+ 	[hi!=0]: Swap hi and lo arguments supplied to xasprintf.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/lto-plugin/lto-plugin.c gcc-6.5.0/lto-plugin/lto-plugin.c
*** gcc-6.4.0/lto-plugin/lto-plugin.c	Thu Feb 25 12:23:52 2016
--- gcc-6.5.0/lto-plugin/lto-plugin.c	Wed Jul 26 13:59:54 2017
*************** claim_file_handler (const struct ld_plug
*** 975,991 ****
  
    if (file->offset != 0)
      {
-       char *objname;
        /* We pass the offset of the actual file, not the archive header.
           Can't use PRIx64, because that's C99, so we have to print the
! 	 64-bit hex int as two 32-bit ones. */
!       int lo, hi, t;
        lo = file->offset & 0xffffffff;
        hi = ((int64_t)file->offset >> 32) & 0xffffffff;
!       t = hi ? asprintf (&objname, "%s@0x%x%08x", file->name, lo, hi)
! 	     : asprintf (&objname, "%s@0x%x", file->name, lo);
!       check (t >= 0, LDPL_FATAL, "asprintf failed");
!       lto_file.name = objname;
      }
    else
      {
--- 975,990 ----
  
    if (file->offset != 0)
      {
        /* We pass the offset of the actual file, not the archive header.
           Can't use PRIx64, because that's C99, so we have to print the
! 	 64-bit hex int as two 32-bit ones.  Use xasprintf instead of
! 	 asprintf because asprintf doesn't work as expected on some older
! 	 mingw32 hosts.  */
!       int lo, hi;
        lo = file->offset & 0xffffffff;
        hi = ((int64_t)file->offset >> 32) & 0xffffffff;
!       lto_file.name = hi ? xasprintf ("%s@0x%x%08x", file->name, hi, lo)
!       			 : xasprintf ("%s@0x%x", file->name, lo);
      }
    else
      {
diff -Nrcpad gcc-6.4.0/maintainer-scripts/ChangeLog gcc-6.5.0/maintainer-scripts/ChangeLog
*** gcc-6.4.0/maintainer-scripts/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/maintainer-scripts/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
diff -Nrcpad gcc-6.4.0/zlib/ChangeLog gcc-6.5.0/zlib/ChangeLog
*** gcc-6.4.0/zlib/ChangeLog	Tue Jul  4 07:22:46 2017
--- gcc-6.5.0/zlib/ChangeLog	Fri Oct 26 09:54:34 2018
***************
*** 1,3 ****
--- 1,7 ----
+ 2018-10-26  Release Manager
+ 
+ 	* GCC 6.5.0 released.
+ 
  2017-07-04  Release Manager
  
  	* GCC 6.4.0 released.
